1 /* NDS32-specific support for 32-bit ELF.
2 Copyright (C) 2012-2016 Free Software Foundation, Inc.
3 Contributed by Andes Technology Corporation.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
25 #include "bfd_stdint.h"
29 #include "libiberty.h"
30 #include "bfd_stdint.h"
31 #include "elf/nds32.h"
32 #include "opcode/nds32.h"
33 #include "elf32-nds32.h"
34 #include "opcode/cgen.h"
35 #include "../opcodes/nds32-opc.h"
37 /* Relocation HOWTO functions. */
38 static bfd_reloc_status_type nds32_elf_ignore_reloc
39 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
40 static bfd_reloc_status_type nds32_elf_9_pcrel_reloc
41 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
42 static bfd_reloc_status_type nds32_elf_hi20_reloc
43 (bfd
*, arelent
*, asymbol
*, void *,
44 asection
*, bfd
*, char **);
45 static bfd_reloc_status_type nds32_elf_lo12_reloc
46 (bfd
*, arelent
*, asymbol
*, void *,
47 asection
*, bfd
*, char **);
48 static bfd_reloc_status_type nds32_elf_generic_reloc
49 (bfd
*, arelent
*, asymbol
*, void *,
50 asection
*, bfd
*, char **);
51 static bfd_reloc_status_type nds32_elf_sda15_reloc
52 (bfd
*, arelent
*, asymbol
*, void *,
53 asection
*, bfd
*, char **);
55 /* Helper functions for HOWTO. */
56 static bfd_reloc_status_type nds32_elf_do_9_pcrel_reloc
57 (bfd
*, reloc_howto_type
*, asection
*, bfd_byte
*, bfd_vma
,
58 asection
*, bfd_vma
, bfd_vma
);
59 static void nds32_elf_relocate_hi20
60 (bfd
*, int, Elf_Internal_Rela
*, Elf_Internal_Rela
*, bfd_byte
*, bfd_vma
);
61 static reloc_howto_type
*bfd_elf32_bfd_reloc_type_table_lookup
62 (enum elf_nds32_reloc_type
);
63 static reloc_howto_type
*bfd_elf32_bfd_reloc_type_lookup
64 (bfd
*, bfd_reloc_code_real_type
);
67 static void nds32_info_to_howto_rel
68 (bfd
*, arelent
*, Elf_Internal_Rela
*dst
);
69 static void nds32_info_to_howto
70 (bfd
*, arelent
*, Elf_Internal_Rela
*dst
);
71 static bfd_boolean nds32_elf_add_symbol_hook
72 (bfd
*, struct bfd_link_info
*, Elf_Internal_Sym
*, const char **,
73 flagword
*, asection
**, bfd_vma
*);
74 static bfd_boolean nds32_elf_relocate_section
75 (bfd
*, struct bfd_link_info
*, bfd
*, asection
*, bfd_byte
*,
76 Elf_Internal_Rela
*, Elf_Internal_Sym
*, asection
**);
77 static bfd_boolean
nds32_elf_object_p (bfd
*);
78 static void nds32_elf_final_write_processing (bfd
*, bfd_boolean
);
79 static bfd_boolean
nds32_elf_set_private_flags (bfd
*, flagword
);
80 static bfd_boolean nds32_elf_merge_private_bfd_data
81 (bfd
*, struct bfd_link_info
*);
82 static bfd_boolean
nds32_elf_print_private_bfd_data (bfd
*, void *);
83 static bfd_boolean nds32_elf_gc_sweep_hook
84 (bfd
*, struct bfd_link_info
*, asection
*, const Elf_Internal_Rela
*);
85 static bfd_boolean nds32_elf_check_relocs
86 (bfd
*, struct bfd_link_info
*, asection
*, const Elf_Internal_Rela
*);
87 static asection
*nds32_elf_gc_mark_hook
88 (asection
*, struct bfd_link_info
*, Elf_Internal_Rela
*,
89 struct elf_link_hash_entry
*, Elf_Internal_Sym
*);
90 static bfd_boolean nds32_elf_adjust_dynamic_symbol
91 (struct bfd_link_info
*, struct elf_link_hash_entry
*);
92 static bfd_boolean nds32_elf_size_dynamic_sections
93 (bfd
*, struct bfd_link_info
*);
94 static bfd_boolean nds32_elf_create_dynamic_sections
95 (bfd
*, struct bfd_link_info
*);
96 static bfd_boolean nds32_elf_finish_dynamic_sections
97 (bfd
*, struct bfd_link_info
*info
);
98 static bfd_boolean nds32_elf_finish_dynamic_symbol
99 (bfd
*, struct bfd_link_info
*, struct elf_link_hash_entry
*,
101 static bfd_boolean
nds32_elf_mkobject (bfd
*);
103 /* Nds32 helper functions. */
104 static bfd_reloc_status_type nds32_elf_final_sda_base
105 (bfd
*, struct bfd_link_info
*, bfd_vma
*, bfd_boolean
);
106 static bfd_boolean
allocate_dynrelocs (struct elf_link_hash_entry
*, void *);
107 static bfd_boolean
readonly_dynrelocs (struct elf_link_hash_entry
*, void *);
108 static Elf_Internal_Rela
*find_relocs_at_address
109 (Elf_Internal_Rela
*, Elf_Internal_Rela
*,
110 Elf_Internal_Rela
*, enum elf_nds32_reloc_type
);
111 static bfd_vma calculate_memory_address
112 (bfd
*, Elf_Internal_Rela
*, Elf_Internal_Sym
*, Elf_Internal_Shdr
*);
113 static int nds32_get_section_contents (bfd
*, asection
*,
114 bfd_byte
**, bfd_boolean
);
115 static bfd_boolean nds32_elf_ex9_build_hash_table
116 (bfd
*, asection
*, struct bfd_link_info
*);
117 static bfd_boolean
nds32_elf_ex9_itb_base (struct bfd_link_info
*);
118 static void nds32_elf_ex9_import_table (struct bfd_link_info
*);
119 static void nds32_elf_ex9_finish (struct bfd_link_info
*);
120 static void nds32_elf_ex9_reloc_jmp (struct bfd_link_info
*);
121 static void nds32_elf_get_insn_with_reg
122 (Elf_Internal_Rela
*, uint32_t, uint32_t *);
123 static int nds32_get_local_syms (bfd
*, asection
*ATTRIBUTE_UNUSED
,
124 Elf_Internal_Sym
**);
125 static bfd_boolean nds32_elf_ex9_replace_instruction
126 (struct bfd_link_info
*, bfd
*, asection
*);
127 static bfd_boolean
nds32_elf_ifc_calc (struct bfd_link_info
*, bfd
*,
129 static bfd_boolean
nds32_elf_ifc_finish (struct bfd_link_info
*);
130 static bfd_boolean
nds32_elf_ifc_replace (struct bfd_link_info
*);
131 static bfd_boolean
nds32_elf_ifc_reloc (void);
132 static bfd_boolean nds32_relax_fp_as_gp
133 (struct bfd_link_info
*link_info
, bfd
*abfd
, asection
*sec
,
134 Elf_Internal_Rela
*internal_relocs
, Elf_Internal_Rela
*irelend
,
135 Elf_Internal_Sym
*isymbuf
);
136 static bfd_boolean nds32_fag_remove_unused_fpbase
137 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*internal_relocs
,
138 Elf_Internal_Rela
*irelend
);
140 nds32_elf_get_relocated_section_contents (bfd
*abfd
,
141 struct bfd_link_info
*link_info
,
142 struct bfd_link_order
*link_order
,
144 bfd_boolean relocatable
,
149 MACH_V1
= bfd_mach_n1h
,
150 MACH_V2
= bfd_mach_n1h_v2
,
151 MACH_V3
= bfd_mach_n1h_v3
,
152 MACH_V3M
= bfd_mach_n1h_v3m
155 #define MIN(a, b) ((a) > (b) ? (b) : (a))
156 #define MAX(a, b) ((a) > (b) ? (a) : (b))
158 /* The name of the dynamic interpreter. This is put in the .interp
160 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
162 /* The nop opcode we use. */
163 #define NDS32_NOP32 0x40000009
164 #define NDS32_NOP16 0x9200
166 /* The size in bytes of an entry in the procedure linkage table. */
167 #define PLT_ENTRY_SIZE 24
168 #define PLT_HEADER_SIZE 24
170 /* The first entry in a procedure linkage table are reserved,
171 and the initial contents are unimportant (we zero them out).
172 Subsequent entries look like this. */
173 #define PLT0_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(.got+4) */
174 #define PLT0_ENTRY_WORD1 0x58f78000 /* ori r15, r25, LO12(.got+4) */
175 #define PLT0_ENTRY_WORD2 0x05178000 /* lwi r17, [r15+0] */
176 #define PLT0_ENTRY_WORD3 0x04f78001 /* lwi r15, [r15+4] */
177 #define PLT0_ENTRY_WORD4 0x4a003c00 /* jr r15 */
179 /* $ta is change to $r15 (from $r25). */
180 #define PLT0_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[1]@GOT) */
181 #define PLT0_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[1]@GOT) */
182 #define PLT0_PIC_ENTRY_WORD2 0x40f7f400 /* add r15, gp, r15 */
183 #define PLT0_PIC_ENTRY_WORD3 0x05178000 /* lwi r17, [r15+0] */
184 #define PLT0_PIC_ENTRY_WORD4 0x04f78001 /* lwi r15, [r15+4] */
185 #define PLT0_PIC_ENTRY_WORD5 0x4a003c00 /* jr r15 */
187 #define PLT_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(&got[n+3]) */
188 #define PLT_ENTRY_WORD1 0x04f78000 /* lwi r15, r15, LO12(&got[n+3]) */
189 #define PLT_ENTRY_WORD2 0x4a003c00 /* jr r15 */
190 #define PLT_ENTRY_WORD3 0x45000000 /* movi r16, sizeof(RELA) * n */
191 #define PLT_ENTRY_WORD4 0x48000000 /* j .plt0. */
193 #define PLT_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[n+3]@GOT) */
194 #define PLT_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[n+3]@GOT) */
195 #define PLT_PIC_ENTRY_WORD2 0x38febc02 /* lw r15, [gp+r15] */
196 #define PLT_PIC_ENTRY_WORD3 0x4a003c00 /* jr r15 */
197 #define PLT_PIC_ENTRY_WORD4 0x45000000 /* movi r16, sizeof(RELA) * n */
198 #define PLT_PIC_ENTRY_WORD5 0x48000000 /* j .plt0 */
200 /* These are macros used to get the relocation accurate value. */
201 #define ACCURATE_8BIT_S1 (0x100)
202 #define ACCURATE_U9BIT_S1 (0x400)
203 #define ACCURATE_12BIT_S1 (0x2000)
204 #define ACCURATE_14BIT_S1 (0x4000)
205 #define ACCURATE_19BIT (0x40000)
207 /* These are macros used to get the relocation conservative value. */
208 #define CONSERVATIVE_8BIT_S1 (0x100 - 4)
209 #define CONSERVATIVE_14BIT_S1 (0x4000 - 4)
210 #define CONSERVATIVE_16BIT_S1 (0x10000 - 4)
211 #define CONSERVATIVE_24BIT_S1 (0x1000000 - 4)
212 /* These must be more conservative because the address may be in
213 different segment. */
214 #define CONSERVATIVE_15BIT (0x4000 - 0x1000)
215 #define CONSERVATIVE_15BIT_S1 (0x8000 - 0x1000)
216 #define CONSERVATIVE_15BIT_S2 (0x10000 - 0x1000)
217 #define CONSERVATIVE_19BIT (0x40000 - 0x1000)
218 #define CONSERVATIVE_20BIT (0x80000 - 0x1000)
220 /* Size of small data/bss sections, used to calculate SDA_BASE. */
221 static long got_size
= 0;
222 static int is_SDA_BASE_set
= 0;
223 static int is_ITB_BASE_set
= 0;
225 /* Convert ELF-VER in eflags to string for debugging purpose. */
226 static const char *const nds32_elfver_strtab
[] =
233 /* The nds32 linker needs to keep track of the number of relocs that it
234 decides to copy in check_relocs for each symbol. This is so that
235 it can discard PC relative relocs if it doesn't need them when
236 linking with -Bsymbolic. We store the information in a field
237 extending the regular ELF linker hash table. */
239 /* This structure keeps track of the number of PC relative relocs we
240 have copied for a given symbol. */
242 struct elf_nds32_pcrel_relocs_copied
245 struct elf_nds32_pcrel_relocs_copied
*next
;
246 /* A section in dynobj. */
248 /* Number of relocs copied in this section. */
252 /* The sh linker needs to keep track of the number of relocs that it
253 decides to copy as dynamic relocs in check_relocs for each symbol.
254 This is so that it can later discard them if they are found to be
255 unnecessary. We store the information in a field extending the
256 regular ELF linker hash table. */
258 struct elf_nds32_dyn_relocs
260 struct elf_nds32_dyn_relocs
*next
;
262 /* The input section of the reloc. */
265 /* Total number of relocs copied for the input section. */
268 /* Number of pc-relative relocs copied for the input section. */
269 bfd_size_type pc_count
;
272 /* Nds32 ELF linker hash entry. */
274 struct elf_nds32_link_hash_entry
276 struct elf_link_hash_entry root
;
278 /* Track dynamic relocs copied for this symbol. */
279 struct elf_nds32_dyn_relocs
*dyn_relocs
;
281 /* For checking relocation type. */
282 #define GOT_UNKNOWN 0
285 unsigned int tls_type
;
288 /* Get the nds32 ELF linker hash table from a link_info structure. */
290 #define FP_BASE_NAME "_FP_BASE_"
291 static int check_start_export_sym
= 0;
292 static size_t ex9_relax_size
= 0; /* Save ex9 predicted reducing size. */
294 /* The offset for executable tls relaxation. */
295 #define TP_OFFSET 0x0
297 struct elf_nds32_obj_tdata
299 struct elf_obj_tdata root
;
301 /* tls_type for each local got entry. */
302 char *local_got_tls_type
;
305 #define elf_nds32_tdata(bfd) \
306 ((struct elf_nds32_obj_tdata *) (bfd)->tdata.any)
308 #define elf32_nds32_local_got_tls_type(bfd) \
309 (elf_nds32_tdata (bfd)->local_got_tls_type)
311 #define elf32_nds32_hash_entry(ent) ((struct elf_nds32_link_hash_entry *)(ent))
314 nds32_elf_mkobject (bfd
*abfd
)
316 return bfd_elf_allocate_object (abfd
, sizeof (struct elf_nds32_obj_tdata
),
320 /* Relocations used for relocation. */
321 static reloc_howto_type nds32_elf_howto_table
[] =
323 /* This reloc does nothing. */
324 HOWTO (R_NDS32_NONE
, /* type */
326 3, /* size (0 = byte, 1 = short, 2 = long) */
328 FALSE
, /* pc_relative */
330 complain_overflow_dont
, /* complain_on_overflow */
331 bfd_elf_generic_reloc
, /* special_function */
332 "R_NDS32_NONE", /* name */
333 FALSE
, /* partial_inplace */
336 FALSE
), /* pcrel_offset */
338 /* A 16 bit absolute relocation. */
339 HOWTO (R_NDS32_16
, /* type */
341 1, /* size (0 = byte, 1 = short, 2 = long) */
343 FALSE
, /* pc_relative */
345 complain_overflow_bitfield
, /* complain_on_overflow */
346 nds32_elf_generic_reloc
, /* special_function */
347 "R_NDS32_16", /* name */
348 FALSE
, /* partial_inplace */
349 0xffff, /* src_mask */
350 0xffff, /* dst_mask */
351 FALSE
), /* pcrel_offset */
353 /* A 32 bit absolute relocation. */
354 HOWTO (R_NDS32_32
, /* type */
356 2, /* size (0 = byte, 1 = short, 2 = long) */
358 FALSE
, /* pc_relative */
360 complain_overflow_bitfield
, /* complain_on_overflow */
361 nds32_elf_generic_reloc
, /* special_function */
362 "R_NDS32_32", /* name */
363 FALSE
, /* partial_inplace */
364 0xffffffff, /* src_mask */
365 0xffffffff, /* dst_mask */
366 FALSE
), /* pcrel_offset */
368 /* A 20 bit address. */
369 HOWTO (R_NDS32_20
, /* type */
371 2, /* size (0 = byte, 1 = short, 2 = long) */
373 FALSE
, /* pc_relative */
375 complain_overflow_unsigned
, /* complain_on_overflow */
376 nds32_elf_generic_reloc
, /* special_function */
377 "R_NDS32_20", /* name */
378 FALSE
, /* partial_inplace */
379 0xfffff, /* src_mask */
380 0xfffff, /* dst_mask */
381 FALSE
), /* pcrel_offset */
383 /* An PC Relative 9-bit relocation, shifted by 2.
384 This reloc is complicated because relocations are relative to pc & -4.
385 i.e. branches in the right insn slot use the address of the left insn
387 /* ??? It's not clear whether this should have partial_inplace set or not.
388 Branch relaxing in the assembler can store the addend in the insn,
389 and if bfd_install_relocation gets called the addend may get added
391 HOWTO (R_NDS32_9_PCREL
, /* type */
393 1, /* size (0 = byte, 1 = short, 2 = long) */
395 TRUE
, /* pc_relative */
397 complain_overflow_signed
, /* complain_on_overflow */
398 nds32_elf_9_pcrel_reloc
, /* special_function */
399 "R_NDS32_9_PCREL", /* name */
400 FALSE
, /* partial_inplace */
403 TRUE
), /* pcrel_offset */
405 /* A relative 15 bit relocation, right shifted by 1. */
406 HOWTO (R_NDS32_15_PCREL
, /* type */
408 2, /* size (0 = byte, 1 = short, 2 = long) */
410 TRUE
, /* pc_relative */
412 complain_overflow_signed
, /* complain_on_overflow */
413 bfd_elf_generic_reloc
, /* special_function */
414 "R_NDS32_15_PCREL", /* name */
415 FALSE
, /* partial_inplace */
416 0x3fff, /* src_mask */
417 0x3fff, /* dst_mask */
418 TRUE
), /* pcrel_offset */
420 /* A relative 17 bit relocation, right shifted by 1. */
421 HOWTO (R_NDS32_17_PCREL
, /* type */
423 2, /* size (0 = byte, 1 = short, 2 = long) */
425 TRUE
, /* pc_relative */
427 complain_overflow_signed
, /* complain_on_overflow */
428 bfd_elf_generic_reloc
, /* special_function */
429 "R_NDS32_17_PCREL", /* name */
430 FALSE
, /* partial_inplace */
431 0xffff, /* src_mask */
432 0xffff, /* dst_mask */
433 TRUE
), /* pcrel_offset */
435 /* A relative 25 bit relocation, right shifted by 1. */
436 /* ??? It's not clear whether this should have partial_inplace set or not.
437 Branch relaxing in the assembler can store the addend in the insn,
438 and if bfd_install_relocation gets called the addend may get added
440 HOWTO (R_NDS32_25_PCREL
, /* type */
442 2, /* size (0 = byte, 1 = short, 2 = long) */
444 TRUE
, /* pc_relative */
446 complain_overflow_signed
, /* complain_on_overflow */
447 bfd_elf_generic_reloc
, /* special_function */
448 "R_NDS32_25_PCREL", /* name */
449 FALSE
, /* partial_inplace */
450 0xffffff, /* src_mask */
451 0xffffff, /* dst_mask */
452 TRUE
), /* pcrel_offset */
454 /* High 20 bits of address when lower 12 is or'd in. */
455 HOWTO (R_NDS32_HI20
, /* type */
457 2, /* size (0 = byte, 1 = short, 2 = long) */
459 FALSE
, /* pc_relative */
461 complain_overflow_dont
,/* complain_on_overflow */
462 nds32_elf_hi20_reloc
, /* special_function */
463 "R_NDS32_HI20", /* name */
464 FALSE
, /* partial_inplace */
465 0x000fffff, /* src_mask */
466 0x000fffff, /* dst_mask */
467 FALSE
), /* pcrel_offset */
469 /* Lower 12 bits of address. */
470 HOWTO (R_NDS32_LO12S3
, /* type */
472 2, /* size (0 = byte, 1 = short, 2 = long) */
474 FALSE
, /* pc_relative */
476 complain_overflow_dont
,/* complain_on_overflow */
477 nds32_elf_lo12_reloc
, /* special_function */
478 "R_NDS32_LO12S3", /* name */
479 FALSE
, /* partial_inplace */
480 0x000001ff, /* src_mask */
481 0x000001ff, /* dst_mask */
482 FALSE
), /* pcrel_offset */
484 /* Lower 12 bits of address. */
485 HOWTO (R_NDS32_LO12S2
, /* type */
487 2, /* size (0 = byte, 1 = short, 2 = long) */
489 FALSE
, /* pc_relative */
491 complain_overflow_dont
,/* complain_on_overflow */
492 nds32_elf_lo12_reloc
, /* special_function */
493 "R_NDS32_LO12S2", /* name */
494 FALSE
, /* partial_inplace */
495 0x000003ff, /* src_mask */
496 0x000003ff, /* dst_mask */
497 FALSE
), /* pcrel_offset */
499 /* Lower 12 bits of address. */
500 HOWTO (R_NDS32_LO12S1
, /* type */
502 2, /* size (0 = byte, 1 = short, 2 = long) */
504 FALSE
, /* pc_relative */
506 complain_overflow_dont
,/* complain_on_overflow */
507 nds32_elf_lo12_reloc
, /* special_function */
508 "R_NDS32_LO12S1", /* name */
509 FALSE
, /* partial_inplace */
510 0x000007ff, /* src_mask */
511 0x000007ff, /* dst_mask */
512 FALSE
), /* pcrel_offset */
514 /* Lower 12 bits of address. */
515 HOWTO (R_NDS32_LO12S0
, /* type */
517 2, /* size (0 = byte, 1 = short, 2 = long) */
519 FALSE
, /* pc_relative */
521 complain_overflow_dont
,/* complain_on_overflow */
522 nds32_elf_lo12_reloc
, /* special_function */
523 "R_NDS32_LO12S0", /* name */
524 FALSE
, /* partial_inplace */
525 0x00000fff, /* src_mask */
526 0x00000fff, /* dst_mask */
527 FALSE
), /* pcrel_offset */
529 /* Small data area 15 bits offset. */
530 HOWTO (R_NDS32_SDA15S3
, /* type */
532 2, /* size (0 = byte, 1 = short, 2 = long) */
534 FALSE
, /* pc_relative */
536 complain_overflow_signed
, /* complain_on_overflow */
537 nds32_elf_sda15_reloc
, /* special_function */
538 "R_NDS32_SDA15S3", /* name */
539 FALSE
, /* partial_inplace */
540 0x00007fff, /* src_mask */
541 0x00007fff, /* dst_mask */
542 FALSE
), /* pcrel_offset */
544 /* Small data area 15 bits offset. */
545 HOWTO (R_NDS32_SDA15S2
, /* type */
547 2, /* size (0 = byte, 1 = short, 2 = long) */
549 FALSE
, /* pc_relative */
551 complain_overflow_signed
, /* complain_on_overflow */
552 nds32_elf_sda15_reloc
, /* special_function */
553 "R_NDS32_SDA15S2", /* name */
554 FALSE
, /* partial_inplace */
555 0x00007fff, /* src_mask */
556 0x00007fff, /* dst_mask */
557 FALSE
), /* pcrel_offset */
559 /* Small data area 15 bits offset. */
560 HOWTO (R_NDS32_SDA15S1
, /* type */
562 2, /* size (0 = byte, 1 = short, 2 = long) */
564 FALSE
, /* pc_relative */
566 complain_overflow_signed
, /* complain_on_overflow */
567 nds32_elf_sda15_reloc
, /* special_function */
568 "R_NDS32_SDA15S1", /* name */
569 FALSE
, /* partial_inplace */
570 0x00007fff, /* src_mask */
571 0x00007fff, /* dst_mask */
572 FALSE
), /* pcrel_offset */
574 /* Small data area 15 bits offset. */
575 HOWTO (R_NDS32_SDA15S0
, /* type */
577 2, /* size (0 = byte, 1 = short, 2 = long) */
579 FALSE
, /* pc_relative */
581 complain_overflow_signed
, /* complain_on_overflow */
582 nds32_elf_sda15_reloc
, /* special_function */
583 "R_NDS32_SDA15S0", /* name */
584 FALSE
, /* partial_inplace */
585 0x00007fff, /* src_mask */
586 0x00007fff, /* dst_mask */
587 FALSE
), /* pcrel_offset */
589 /* GNU extension to record C++ vtable hierarchy */
590 HOWTO (R_NDS32_GNU_VTINHERIT
, /* type */
592 2, /* size (0 = byte, 1 = short, 2 = long) */
594 FALSE
, /* pc_relative */
596 complain_overflow_dont
,/* complain_on_overflow */
597 NULL
, /* special_function */
598 "R_NDS32_GNU_VTINHERIT", /* name */
599 FALSE
, /* partial_inplace */
602 FALSE
), /* pcrel_offset */
604 /* GNU extension to record C++ vtable member usage */
605 HOWTO (R_NDS32_GNU_VTENTRY
, /* type */
607 2, /* size (0 = byte, 1 = short, 2 = long) */
609 FALSE
, /* pc_relative */
611 complain_overflow_dont
,/* complain_on_overflow */
612 _bfd_elf_rel_vtable_reloc_fn
, /* special_function */
613 "R_NDS32_GNU_VTENTRY", /* name */
614 FALSE
, /* partial_inplace */
617 FALSE
), /* pcrel_offset */
619 /* A 16 bit absolute relocation. */
620 HOWTO (R_NDS32_16_RELA
, /* type */
622 1, /* size (0 = byte, 1 = short, 2 = long) */
624 FALSE
, /* pc_relative */
626 complain_overflow_bitfield
, /* complain_on_overflow */
627 bfd_elf_generic_reloc
, /* special_function */
628 "R_NDS32_16_RELA", /* name */
629 FALSE
, /* partial_inplace */
630 0xffff, /* src_mask */
631 0xffff, /* dst_mask */
632 FALSE
), /* pcrel_offset */
634 /* A 32 bit absolute relocation. */
635 HOWTO (R_NDS32_32_RELA
, /* type */
637 2, /* size (0 = byte, 1 = short, 2 = long) */
639 FALSE
, /* pc_relative */
641 complain_overflow_bitfield
, /* complain_on_overflow */
642 bfd_elf_generic_reloc
, /* special_function */
643 "R_NDS32_32_RELA", /* name */
644 FALSE
, /* partial_inplace */
645 0xffffffff, /* src_mask */
646 0xffffffff, /* dst_mask */
647 FALSE
), /* pcrel_offset */
649 /* A 20 bit address. */
650 HOWTO (R_NDS32_20_RELA
, /* type */
652 2, /* size (0 = byte, 1 = short, 2 = long) */
654 FALSE
, /* pc_relative */
656 complain_overflow_signed
, /* complain_on_overflow */
657 bfd_elf_generic_reloc
, /* special_function */
658 "R_NDS32_20_RELA", /* name */
659 FALSE
, /* partial_inplace */
660 0xfffff, /* src_mask */
661 0xfffff, /* dst_mask */
662 FALSE
), /* pcrel_offset */
664 HOWTO (R_NDS32_9_PCREL_RELA
, /* type */
666 1, /* size (0 = byte, 1 = short, 2 = long) */
668 TRUE
, /* pc_relative */
670 complain_overflow_signed
, /* complain_on_overflow */
671 bfd_elf_generic_reloc
, /* special_function */
672 "R_NDS32_9_PCREL_RELA",/* name */
673 FALSE
, /* partial_inplace */
676 TRUE
), /* pcrel_offset */
678 /* A relative 15 bit relocation, right shifted by 1. */
679 HOWTO (R_NDS32_15_PCREL_RELA
, /* type */
681 2, /* size (0 = byte, 1 = short, 2 = long) */
683 TRUE
, /* pc_relative */
685 complain_overflow_signed
, /* complain_on_overflow */
686 bfd_elf_generic_reloc
, /* special_function */
687 "R_NDS32_15_PCREL_RELA", /* name */
688 FALSE
, /* partial_inplace */
689 0x3fff, /* src_mask */
690 0x3fff, /* dst_mask */
691 TRUE
), /* pcrel_offset */
693 /* A relative 17 bit relocation, right shifted by 1. */
694 HOWTO (R_NDS32_17_PCREL_RELA
, /* type */
696 2, /* size (0 = byte, 1 = short, 2 = long) */
698 TRUE
, /* pc_relative */
700 complain_overflow_signed
, /* complain_on_overflow */
701 bfd_elf_generic_reloc
, /* special_function */
702 "R_NDS32_17_PCREL_RELA", /* name */
703 FALSE
, /* partial_inplace */
704 0xffff, /* src_mask */
705 0xffff, /* dst_mask */
706 TRUE
), /* pcrel_offset */
708 /* A relative 25 bit relocation, right shifted by 2. */
709 HOWTO (R_NDS32_25_PCREL_RELA
, /* type */
711 2, /* size (0 = byte, 1 = short, 2 = long) */
713 TRUE
, /* pc_relative */
715 complain_overflow_signed
, /* complain_on_overflow */
716 bfd_elf_generic_reloc
, /* special_function */
717 "R_NDS32_25_PCREL_RELA", /* name */
718 FALSE
, /* partial_inplace */
719 0xffffff, /* src_mask */
720 0xffffff, /* dst_mask */
721 TRUE
), /* pcrel_offset */
723 /* High 20 bits of address when lower 16 is or'd in. */
724 HOWTO (R_NDS32_HI20_RELA
, /* type */
726 2, /* size (0 = byte, 1 = short, 2 = long) */
728 FALSE
, /* pc_relative */
730 complain_overflow_dont
,/* complain_on_overflow */
731 bfd_elf_generic_reloc
, /* special_function */
732 "R_NDS32_HI20_RELA", /* name */
733 FALSE
, /* partial_inplace */
734 0x000fffff, /* src_mask */
735 0x000fffff, /* dst_mask */
736 FALSE
), /* pcrel_offset */
738 /* Lower 12 bits of address. */
739 HOWTO (R_NDS32_LO12S3_RELA
, /* type */
741 2, /* size (0 = byte, 1 = short, 2 = long) */
743 FALSE
, /* pc_relative */
745 complain_overflow_dont
,/* complain_on_overflow */
746 bfd_elf_generic_reloc
, /* special_function */
747 "R_NDS32_LO12S3_RELA", /* name */
748 FALSE
, /* partial_inplace */
749 0x000001ff, /* src_mask */
750 0x000001ff, /* dst_mask */
751 FALSE
), /* pcrel_offset */
753 /* Lower 12 bits of address. */
754 HOWTO (R_NDS32_LO12S2_RELA
, /* type */
756 2, /* size (0 = byte, 1 = short, 2 = long) */
758 FALSE
, /* pc_relative */
760 complain_overflow_dont
,/* complain_on_overflow */
761 bfd_elf_generic_reloc
, /* special_function */
762 "R_NDS32_LO12S2_RELA", /* name */
763 FALSE
, /* partial_inplace */
764 0x000003ff, /* src_mask */
765 0x000003ff, /* dst_mask */
766 FALSE
), /* pcrel_offset */
768 /* Lower 12 bits of address. */
769 HOWTO (R_NDS32_LO12S1_RELA
, /* type */
771 2, /* size (0 = byte, 1 = short, 2 = long) */
773 FALSE
, /* pc_relative */
775 complain_overflow_dont
,/* complain_on_overflow */
776 bfd_elf_generic_reloc
, /* special_function */
777 "R_NDS32_LO12S1_RELA", /* name */
778 FALSE
, /* partial_inplace */
779 0x000007ff, /* src_mask */
780 0x000007ff, /* dst_mask */
781 FALSE
), /* pcrel_offset */
783 /* Lower 12 bits of address. */
784 HOWTO (R_NDS32_LO12S0_RELA
, /* type */
786 2, /* size (0 = byte, 1 = short, 2 = long) */
788 FALSE
, /* pc_relative */
790 complain_overflow_dont
,/* complain_on_overflow */
791 bfd_elf_generic_reloc
, /* special_function */
792 "R_NDS32_LO12S0_RELA", /* name */
793 FALSE
, /* partial_inplace */
794 0x00000fff, /* src_mask */
795 0x00000fff, /* dst_mask */
796 FALSE
), /* pcrel_offset */
798 /* Small data area 15 bits offset. */
799 HOWTO (R_NDS32_SDA15S3_RELA
, /* type */
801 2, /* size (0 = byte, 1 = short, 2 = long) */
803 FALSE
, /* pc_relative */
805 complain_overflow_signed
, /* complain_on_overflow */
806 bfd_elf_generic_reloc
, /* special_function */
807 "R_NDS32_SDA15S3_RELA",/* name */
808 FALSE
, /* partial_inplace */
809 0x00007fff, /* src_mask */
810 0x00007fff, /* dst_mask */
811 FALSE
), /* pcrel_offset */
813 /* Small data area 15 bits offset. */
814 HOWTO (R_NDS32_SDA15S2_RELA
, /* type */
816 2, /* size (0 = byte, 1 = short, 2 = long) */
818 FALSE
, /* pc_relative */
820 complain_overflow_signed
, /* complain_on_overflow */
821 bfd_elf_generic_reloc
, /* special_function */
822 "R_NDS32_SDA15S2_RELA",/* name */
823 FALSE
, /* partial_inplace */
824 0x00007fff, /* src_mask */
825 0x00007fff, /* dst_mask */
826 FALSE
), /* pcrel_offset */
828 HOWTO (R_NDS32_SDA15S1_RELA
, /* type */
830 2, /* size (0 = byte, 1 = short, 2 = long) */
832 FALSE
, /* pc_relative */
834 complain_overflow_signed
, /* complain_on_overflow */
835 bfd_elf_generic_reloc
, /* special_function */
836 "R_NDS32_SDA15S1_RELA",/* name */
837 FALSE
, /* partial_inplace */
838 0x00007fff, /* src_mask */
839 0x00007fff, /* dst_mask */
840 FALSE
), /* pcrel_offset */
842 HOWTO (R_NDS32_SDA15S0_RELA
, /* type */
844 2, /* size (0 = byte, 1 = short, 2 = long) */
846 FALSE
, /* pc_relative */
848 complain_overflow_signed
, /* complain_on_overflow */
849 bfd_elf_generic_reloc
, /* special_function */
850 "R_NDS32_SDA15S0_RELA",/* name */
851 FALSE
, /* partial_inplace */
852 0x00007fff, /* src_mask */
853 0x00007fff, /* dst_mask */
854 FALSE
), /* pcrel_offset */
856 /* GNU extension to record C++ vtable hierarchy */
857 HOWTO (R_NDS32_RELA_GNU_VTINHERIT
, /* type */
859 2, /* size (0 = byte, 1 = short, 2 = long) */
861 FALSE
, /* pc_relative */
863 complain_overflow_dont
,/* complain_on_overflow */
864 NULL
, /* special_function */
865 "R_NDS32_RELA_GNU_VTINHERIT", /* name */
866 FALSE
, /* partial_inplace */
869 FALSE
), /* pcrel_offset */
871 /* GNU extension to record C++ vtable member usage */
872 HOWTO (R_NDS32_RELA_GNU_VTENTRY
, /* type */
874 2, /* size (0 = byte, 1 = short, 2 = long) */
876 FALSE
, /* pc_relative */
878 complain_overflow_dont
,/* complain_on_overflow */
879 _bfd_elf_rel_vtable_reloc_fn
, /* special_function */
880 "R_NDS32_RELA_GNU_VTENTRY", /* name */
881 FALSE
, /* partial_inplace */
884 FALSE
), /* pcrel_offset */
886 /* Like R_NDS32_20, but referring to the GOT table entry for
888 HOWTO (R_NDS32_GOT20
, /* type */
890 2, /* size (0 = byte, 1 = short, 2 = long) */
892 FALSE
, /* pc_relative */
894 complain_overflow_signed
, /* complain_on_overflow */
895 bfd_elf_generic_reloc
, /* special_function */
896 "R_NDS32_GOT20", /* name */
897 FALSE
, /* partial_inplace */
898 0xfffff, /* src_mask */
899 0xfffff, /* dst_mask */
900 FALSE
), /* pcrel_offset */
902 /* Like R_NDS32_PCREL, but referring to the procedure linkage table
903 entry for the symbol. */
904 HOWTO (R_NDS32_25_PLTREL
, /* type */
906 2, /* size (0 = byte, 1 = short, 2 = long) */
908 TRUE
, /* pc_relative */
910 complain_overflow_signed
, /* complain_on_overflow */
911 bfd_elf_generic_reloc
, /* special_function */
912 "R_NDS32_25_PLTREL", /* name */
913 FALSE
, /* partial_inplace */
914 0xffffff, /* src_mask */
915 0xffffff, /* dst_mask */
916 TRUE
), /* pcrel_offset */
918 /* This is used only by the dynamic linker. The symbol should exist
919 both in the object being run and in some shared library. The
920 dynamic linker copies the data addressed by the symbol from the
921 shared library into the object, because the object being
922 run has to have the data at some particular address. */
923 HOWTO (R_NDS32_COPY
, /* type */
925 2, /* size (0 = byte, 1 = short, 2 = long) */
927 FALSE
, /* pc_relative */
929 complain_overflow_bitfield
, /* complain_on_overflow */
930 bfd_elf_generic_reloc
, /* special_function */
931 "R_NDS32_COPY", /* name */
932 FALSE
, /* partial_inplace */
933 0xffffffff, /* src_mask */
934 0xffffffff, /* dst_mask */
935 FALSE
), /* pcrel_offset */
937 /* Like R_NDS32_20, but used when setting global offset table
939 HOWTO (R_NDS32_GLOB_DAT
, /* type */
941 2, /* size (0 = byte, 1 = short, 2 = long) */
943 FALSE
, /* pc_relative */
945 complain_overflow_bitfield
, /* complain_on_overflow */
946 bfd_elf_generic_reloc
, /* special_function */
947 "R_NDS32_GLOB_DAT", /* name */
948 FALSE
, /* partial_inplace */
949 0xffffffff, /* src_mask */
950 0xffffffff, /* dst_mask */
951 FALSE
), /* pcrel_offset */
953 /* Marks a procedure linkage table entry for a symbol. */
954 HOWTO (R_NDS32_JMP_SLOT
, /* type */
956 2, /* size (0 = byte, 1 = short, 2 = long) */
958 FALSE
, /* pc_relative */
960 complain_overflow_bitfield
, /* complain_on_overflow */
961 bfd_elf_generic_reloc
, /* special_function */
962 "R_NDS32_JMP_SLOT", /* name */
963 FALSE
, /* partial_inplace */
964 0xffffffff, /* src_mask */
965 0xffffffff, /* dst_mask */
966 FALSE
), /* pcrel_offset */
968 /* Used only by the dynamic linker. When the object is run, this
969 longword is set to the load address of the object, plus the
971 HOWTO (R_NDS32_RELATIVE
, /* type */
973 2, /* size (0 = byte, 1 = short, 2 = long) */
975 FALSE
, /* pc_relative */
977 complain_overflow_bitfield
, /* complain_on_overflow */
978 bfd_elf_generic_reloc
, /* special_function */
979 "R_NDS32_RELATIVE", /* name */
980 FALSE
, /* partial_inplace */
981 0xffffffff, /* src_mask */
982 0xffffffff, /* dst_mask */
983 FALSE
), /* pcrel_offset */
985 HOWTO (R_NDS32_GOTOFF
, /* type */
987 2, /* size (0 = byte, 1 = short, 2 = long) */
989 FALSE
, /* pc_relative */
991 complain_overflow_signed
, /* complain_on_overflow */
992 bfd_elf_generic_reloc
, /* special_function */
993 "R_NDS32_GOTOFF", /* name */
994 FALSE
, /* partial_inplace */
995 0xfffff, /* src_mask */
996 0xfffff, /* dst_mask */
997 FALSE
), /* pcrel_offset */
999 /* An PC Relative 20-bit relocation used when setting PIC offset
1001 HOWTO (R_NDS32_GOTPC20
, /* type */
1003 2, /* size (0 = byte, 1 = short, 2 = long) */
1005 TRUE
, /* pc_relative */
1007 complain_overflow_signed
, /* complain_on_overflow */
1008 bfd_elf_generic_reloc
, /* special_function */
1009 "R_NDS32_GOTPC20", /* name */
1010 FALSE
, /* partial_inplace */
1011 0xfffff, /* src_mask */
1012 0xfffff, /* dst_mask */
1013 TRUE
), /* pcrel_offset */
1015 /* Like R_NDS32_HI20, but referring to the GOT table entry for
1017 HOWTO (R_NDS32_GOT_HI20
, /* type */
1018 12, /* rightshift */
1019 2, /* size (0 = byte, 1 = short, 2 = long) */
1021 FALSE
, /* pc_relative */
1023 complain_overflow_dont
,/* complain_on_overflow */
1024 bfd_elf_generic_reloc
, /* special_function */
1025 "R_NDS32_GOT_HI20", /* name */
1026 FALSE
, /* partial_inplace */
1027 0x000fffff, /* src_mask */
1028 0x000fffff, /* dst_mask */
1029 FALSE
), /* pcrel_offset */
1030 HOWTO (R_NDS32_GOT_LO12
, /* type */
1032 2, /* size (0 = byte, 1 = short, 2 = long) */
1034 FALSE
, /* pc_relative */
1036 complain_overflow_dont
,/* complain_on_overflow */
1037 bfd_elf_generic_reloc
, /* special_function */
1038 "R_NDS32_GOT_LO12", /* name */
1039 FALSE
, /* partial_inplace */
1040 0x00000fff, /* src_mask */
1041 0x00000fff, /* dst_mask */
1042 FALSE
), /* pcrel_offset */
1044 /* An PC Relative relocation used when setting PIC offset table register.
1045 Like R_NDS32_HI20, but referring to the GOT table entry for
1047 HOWTO (R_NDS32_GOTPC_HI20
, /* type */
1048 12, /* rightshift */
1049 2, /* size (0 = byte, 1 = short, 2 = long) */
1051 FALSE
, /* pc_relative */
1053 complain_overflow_dont
,/* complain_on_overflow */
1054 bfd_elf_generic_reloc
, /* special_function */
1055 "R_NDS32_GOTPC_HI20", /* name */
1056 FALSE
, /* partial_inplace */
1057 0x000fffff, /* src_mask */
1058 0x000fffff, /* dst_mask */
1059 TRUE
), /* pcrel_offset */
1060 HOWTO (R_NDS32_GOTPC_LO12
, /* type */
1062 2, /* size (0 = byte, 1 = short, 2 = long) */
1064 FALSE
, /* pc_relative */
1066 complain_overflow_dont
, /* complain_on_overflow */
1067 bfd_elf_generic_reloc
, /* special_function */
1068 "R_NDS32_GOTPC_LO12", /* name */
1069 FALSE
, /* partial_inplace */
1070 0x00000fff, /* src_mask */
1071 0x00000fff, /* dst_mask */
1072 TRUE
), /* pcrel_offset */
1074 HOWTO (R_NDS32_GOTOFF_HI20
, /* type */
1075 12, /* rightshift */
1076 2, /* size (0 = byte, 1 = short, 2 = long) */
1078 FALSE
, /* pc_relative */
1080 complain_overflow_dont
,/* complain_on_overflow */
1081 bfd_elf_generic_reloc
, /* special_function */
1082 "R_NDS32_GOTOFF_HI20", /* name */
1083 FALSE
, /* partial_inplace */
1084 0x000fffff, /* src_mask */
1085 0x000fffff, /* dst_mask */
1086 FALSE
), /* pcrel_offset */
1087 HOWTO (R_NDS32_GOTOFF_LO12
, /* type */
1089 2, /* size (0 = byte, 1 = short, 2 = long) */
1091 FALSE
, /* pc_relative */
1093 complain_overflow_dont
,/* complain_on_overflow */
1094 bfd_elf_generic_reloc
, /* special_function */
1095 "R_NDS32_GOTOFF_LO12", /* name */
1096 FALSE
, /* partial_inplace */
1097 0x00000fff, /* src_mask */
1098 0x00000fff, /* dst_mask */
1099 FALSE
), /* pcrel_offset */
1101 /* Alignment hint for relaxable instruction. This is used with
1102 R_NDS32_LABEL as a pair. Relax this instruction from 4 bytes to 2
1103 in order to make next label aligned on word boundary. */
1104 HOWTO (R_NDS32_INSN16
, /* type */
1106 2, /* size (0 = byte, 1 = short, 2 = long) */
1108 FALSE
, /* pc_relative */
1110 complain_overflow_dont
,/* complain_on_overflow */
1111 nds32_elf_ignore_reloc
,/* special_function */
1112 "R_NDS32_INSN16", /* name */
1113 FALSE
, /* partial_inplace */
1114 0x00000fff, /* src_mask */
1115 0x00000fff, /* dst_mask */
1116 FALSE
), /* pcrel_offset */
1118 /* Alignment hint for label. */
1119 HOWTO (R_NDS32_LABEL
, /* type */
1121 2, /* size (0 = byte, 1 = short, 2 = long) */
1123 FALSE
, /* pc_relative */
1125 complain_overflow_dont
,/* complain_on_overflow */
1126 nds32_elf_ignore_reloc
,/* special_function */
1127 "R_NDS32_LABEL", /* name */
1128 FALSE
, /* partial_inplace */
1129 0xffffffff, /* src_mask */
1130 0xffffffff, /* dst_mask */
1131 FALSE
), /* pcrel_offset */
1133 /* Relax hint for unconditional call sequence */
1134 HOWTO (R_NDS32_LONGCALL1
, /* type */
1136 2, /* size (0 = byte, 1 = short, 2 = long) */
1138 FALSE
, /* pc_relative */
1140 complain_overflow_dont
,/* complain_on_overflow */
1141 nds32_elf_ignore_reloc
,/* special_function */
1142 "R_NDS32_LONGCALL1", /* name */
1143 FALSE
, /* partial_inplace */
1144 0xffffffff, /* src_mask */
1145 0xffffffff, /* dst_mask */
1146 FALSE
), /* pcrel_offset */
1148 /* Relax hint for conditional call sequence. */
1149 HOWTO (R_NDS32_LONGCALL2
, /* type */
1151 2, /* size (0 = byte, 1 = short, 2 = long) */
1153 FALSE
, /* pc_relative */
1155 complain_overflow_dont
,/* complain_on_overflow */
1156 nds32_elf_ignore_reloc
,/* special_function */
1157 "R_NDS32_LONGCALL2", /* name */
1158 FALSE
, /* partial_inplace */
1159 0xffffffff, /* src_mask */
1160 0xffffffff, /* dst_mask */
1161 FALSE
), /* pcrel_offset */
1163 /* Relax hint for conditional call sequence. */
1164 HOWTO (R_NDS32_LONGCALL3
, /* type */
1166 2, /* size (0 = byte, 1 = short, 2 = long) */
1168 FALSE
, /* pc_relative */
1170 complain_overflow_dont
,/* complain_on_overflow */
1171 nds32_elf_ignore_reloc
,/* special_function */
1172 "R_NDS32_LONGCALL3", /* name */
1173 FALSE
, /* partial_inplace */
1174 0xffffffff, /* src_mask */
1175 0xffffffff, /* dst_mask */
1176 FALSE
), /* pcrel_offset */
1178 /* Relax hint for unconditional branch sequence. */
1179 HOWTO (R_NDS32_LONGJUMP1
, /* type */
1181 2, /* size (0 = byte, 1 = short, 2 = long) */
1183 FALSE
, /* pc_relative */
1185 complain_overflow_dont
,/* complain_on_overflow */
1186 nds32_elf_ignore_reloc
,/* special_function */
1187 "R_NDS32_LONGJUMP1", /* name */
1188 FALSE
, /* partial_inplace */
1189 0xffffffff, /* src_mask */
1190 0xffffffff, /* dst_mask */
1191 FALSE
), /* pcrel_offset */
1193 /* Relax hint for conditional branch sequence. */
1194 HOWTO (R_NDS32_LONGJUMP2
, /* type */
1196 2, /* size (0 = byte, 1 = short, 2 = long) */
1198 FALSE
, /* pc_relative */
1200 complain_overflow_dont
,/* complain_on_overflow */
1201 nds32_elf_ignore_reloc
,/* special_function */
1202 "R_NDS32_LONGJUMP2", /* name */
1203 FALSE
, /* partial_inplace */
1204 0xffffffff, /* src_mask */
1205 0xffffffff, /* dst_mask */
1206 FALSE
), /* pcrel_offset */
1208 /* Relax hint for conditional branch sequence. */
1209 HOWTO (R_NDS32_LONGJUMP3
, /* type */
1211 2, /* size (0 = byte, 1 = short, 2 = long) */
1213 FALSE
, /* pc_relative */
1215 complain_overflow_dont
,/* complain_on_overflow */
1216 nds32_elf_ignore_reloc
,/* special_function */
1217 "R_NDS32_LONGJUMP3", /* name */
1218 FALSE
, /* partial_inplace */
1219 0xffffffff, /* src_mask */
1220 0xffffffff, /* dst_mask */
1221 FALSE
), /* pcrel_offset */
1223 /* Relax hint for load/store sequence. */
1224 HOWTO (R_NDS32_LOADSTORE
, /* type */
1226 2, /* size (0 = byte, 1 = short, 2 = long) */
1228 FALSE
, /* pc_relative */
1230 complain_overflow_dont
,/* complain_on_overflow */
1231 nds32_elf_ignore_reloc
,/* special_function */
1232 "R_NDS32_LOADSTORE", /* name */
1233 FALSE
, /* partial_inplace */
1234 0xffffffff, /* src_mask */
1235 0xffffffff, /* dst_mask */
1236 FALSE
), /* pcrel_offset */
1238 /* Relax hint for load/store sequence. */
1239 HOWTO (R_NDS32_9_FIXED_RELA
, /* type */
1241 1, /* size (0 = byte, 1 = short, 2 = long) */
1243 FALSE
, /* pc_relative */
1245 complain_overflow_dont
,/* complain_on_overflow */
1246 nds32_elf_ignore_reloc
,/* special_function */
1247 "R_NDS32_9_FIXED_RELA",/* name */
1248 FALSE
, /* partial_inplace */
1249 0x000000ff, /* src_mask */
1250 0x000000ff, /* dst_mask */
1251 FALSE
), /* pcrel_offset */
1253 /* Relax hint for load/store sequence. */
1254 HOWTO (R_NDS32_15_FIXED_RELA
, /* type */
1256 2, /* size (0 = byte, 1 = short, 2 = long) */
1258 FALSE
, /* pc_relative */
1260 complain_overflow_dont
,/* complain_on_overflow */
1261 nds32_elf_ignore_reloc
,/* special_function */
1262 "R_NDS32_15_FIXED_RELA", /* name */
1263 FALSE
, /* partial_inplace */
1264 0x00003fff, /* src_mask */
1265 0x00003fff, /* dst_mask */
1266 FALSE
), /* pcrel_offset */
1268 /* Relax hint for load/store sequence. */
1269 HOWTO (R_NDS32_17_FIXED_RELA
, /* type */
1271 2, /* size (0 = byte, 1 = short, 2 = long) */
1273 FALSE
, /* pc_relative */
1275 complain_overflow_dont
,/* complain_on_overflow */
1276 nds32_elf_ignore_reloc
,/* special_function */
1277 "R_NDS32_17_FIXED_RELA", /* name */
1278 FALSE
, /* partial_inplace */
1279 0x0000ffff, /* src_mask */
1280 0x0000ffff, /* dst_mask */
1281 FALSE
), /* pcrel_offset */
1283 /* Relax hint for load/store sequence. */
1284 HOWTO (R_NDS32_25_FIXED_RELA
, /* type */
1286 2, /* size (0 = byte, 1 = short, 2 = long) */
1288 FALSE
, /* pc_relative */
1290 complain_overflow_dont
,/* complain_on_overflow */
1291 nds32_elf_ignore_reloc
,/* special_function */
1292 "R_NDS32_25_FIXED_RELA", /* name */
1293 FALSE
, /* partial_inplace */
1294 0x00ffffff, /* src_mask */
1295 0x00ffffff, /* dst_mask */
1296 FALSE
), /* pcrel_offset */
1298 /* High 20 bits of PLT symbol offset relative to PC. */
1299 HOWTO (R_NDS32_PLTREL_HI20
, /* type */
1300 12, /* rightshift */
1301 2, /* size (0 = byte, 1 = short, 2 = long) */
1303 FALSE
, /* pc_relative */
1305 complain_overflow_dont
,/* complain_on_overflow */
1306 bfd_elf_generic_reloc
, /* special_function */
1307 "R_NDS32_PLTREL_HI20", /* name */
1308 FALSE
, /* partial_inplace */
1309 0x000fffff, /* src_mask */
1310 0x000fffff, /* dst_mask */
1311 FALSE
), /* pcrel_offset */
1313 /* Low 12 bits of PLT symbol offset relative to PC. */
1314 HOWTO (R_NDS32_PLTREL_LO12
, /* type */
1316 2, /* size (0 = byte, 1 = short, 2 = long) */
1318 FALSE
, /* pc_relative */
1320 complain_overflow_dont
,/* complain_on_overflow */
1321 bfd_elf_generic_reloc
, /* special_function */
1322 "R_NDS32_PLTREL_LO12", /* name */
1323 FALSE
, /* partial_inplace */
1324 0x00000fff, /* src_mask */
1325 0x00000fff, /* dst_mask */
1326 FALSE
), /* pcrel_offset */
1328 /* High 20 bits of PLT symbol offset relative to GOT (GP). */
1329 HOWTO (R_NDS32_PLT_GOTREL_HI20
, /* type */
1330 12, /* rightshift */
1331 2, /* size (0 = byte, 1 = short, 2 = long) */
1333 FALSE
, /* pc_relative */
1335 complain_overflow_dont
,/* complain_on_overflow */
1336 bfd_elf_generic_reloc
, /* special_function */
1337 "R_NDS32_PLT_GOTREL_HI20", /* name */
1338 FALSE
, /* partial_inplace */
1339 0x000fffff, /* src_mask */
1340 0x000fffff, /* dst_mask */
1341 FALSE
), /* pcrel_offset */
1343 /* Low 12 bits of PLT symbol offset relative to GOT (GP). */
1344 HOWTO (R_NDS32_PLT_GOTREL_LO12
, /* type */
1346 2, /* size (0 = byte, 1 = short, 2 = long) */
1348 FALSE
, /* pc_relative */
1350 complain_overflow_dont
,/* complain_on_overflow */
1351 bfd_elf_generic_reloc
, /* special_function */
1352 "R_NDS32_PLT_GOTREL_LO12", /* name */
1353 FALSE
, /* partial_inplace */
1354 0x00000fff, /* src_mask */
1355 0x00000fff, /* dst_mask */
1356 FALSE
), /* pcrel_offset */
1358 /* Small data area 12 bits offset. */
1359 HOWTO (R_NDS32_SDA12S2_DP_RELA
, /* type */
1361 2, /* size (0 = byte, 1 = short, 2 = long) */
1363 FALSE
, /* pc_relative */
1365 complain_overflow_signed
, /* complain_on_overflow */
1366 bfd_elf_generic_reloc
, /* special_function */
1367 "R_NDS32_SDA12S2_DP_RELA", /* name */
1368 FALSE
, /* partial_inplace */
1369 0x00000fff, /* src_mask */
1370 0x00000fff, /* dst_mask */
1371 FALSE
), /* pcrel_offset */
1373 /* Small data area 12 bits offset. */
1374 HOWTO (R_NDS32_SDA12S2_SP_RELA
, /* type */
1376 2, /* size (0 = byte, 1 = short, 2 = long) */
1378 FALSE
, /* pc_relative */
1380 complain_overflow_signed
, /* complain_on_overflow */
1381 bfd_elf_generic_reloc
, /* special_function */
1382 "R_NDS32_SDA12S2_SP_RELA", /* name */
1383 FALSE
, /* partial_inplace */
1384 0x00000fff, /* src_mask */
1385 0x00000fff, /* dst_mask */
1386 FALSE
), /* pcrel_offset */
1387 /* Lower 12 bits of address. */
1389 HOWTO (R_NDS32_LO12S2_DP_RELA
, /* type */
1391 2, /* size (0 = byte, 1 = short, 2 = long) */
1393 FALSE
, /* pc_relative */
1395 complain_overflow_dont
,/* complain_on_overflow */
1396 bfd_elf_generic_reloc
, /* special_function */
1397 "R_NDS32_LO12S2_DP_RELA", /* name */
1398 FALSE
, /* partial_inplace */
1399 0x000003ff, /* src_mask */
1400 0x000003ff, /* dst_mask */
1401 FALSE
), /* pcrel_offset */
1403 /* Lower 12 bits of address. */
1404 HOWTO (R_NDS32_LO12S2_SP_RELA
,/* type */
1406 2, /* size (0 = byte, 1 = short, 2 = long) */
1408 FALSE
, /* pc_relative */
1410 complain_overflow_dont
,/* complain_on_overflow */
1411 bfd_elf_generic_reloc
, /* special_function */
1412 "R_NDS32_LO12S2_SP_RELA", /* name */
1413 FALSE
, /* partial_inplace */
1414 0x000003ff, /* src_mask */
1415 0x000003ff, /* dst_mask */
1416 FALSE
), /* pcrel_offset */
1417 /* Lower 12 bits of address. Special identity for or case. */
1418 HOWTO (R_NDS32_LO12S0_ORI_RELA
, /* type */
1420 2, /* size (0 = byte, 1 = short, 2 = long) */
1422 FALSE
, /* pc_relative */
1424 complain_overflow_dont
,/* complain_on_overflow */
1425 bfd_elf_generic_reloc
, /* special_function */
1426 "R_NDS32_LO12S0_ORI_RELA", /* name */
1427 FALSE
, /* partial_inplace */
1428 0x00000fff, /* src_mask */
1429 0x00000fff, /* dst_mask */
1430 FALSE
), /* pcrel_offset */
1431 /* Small data area 19 bits offset. */
1432 HOWTO (R_NDS32_SDA16S3_RELA
, /* type */
1434 2, /* size (0 = byte, 1 = short, 2 = long) */
1436 FALSE
, /* pc_relative */
1438 complain_overflow_signed
, /* complain_on_overflow */
1439 bfd_elf_generic_reloc
, /* special_function */
1440 "R_NDS32_SDA16S3_RELA",/* name */
1441 FALSE
, /* partial_inplace */
1442 0x0000ffff, /* src_mask */
1443 0x0000ffff, /* dst_mask */
1444 FALSE
), /* pcrel_offset */
1446 /* Small data area 15 bits offset. */
1447 HOWTO (R_NDS32_SDA17S2_RELA
, /* type */
1449 2, /* size (0 = byte, 1 = short, 2 = long) */
1451 FALSE
, /* pc_relative */
1453 complain_overflow_signed
, /* complain_on_overflow */
1454 bfd_elf_generic_reloc
, /* special_function */
1455 "R_NDS32_SDA17S2_RELA",/* name */
1456 FALSE
, /* partial_inplace */
1457 0x0001ffff, /* src_mask */
1458 0x0001ffff, /* dst_mask */
1459 FALSE
), /* pcrel_offset */
1461 HOWTO (R_NDS32_SDA18S1_RELA
, /* type */
1463 2, /* size (0 = byte, 1 = short, 2 = long) */
1465 FALSE
, /* pc_relative */
1467 complain_overflow_signed
, /* complain_on_overflow */
1468 bfd_elf_generic_reloc
, /* special_function */
1469 "R_NDS32_SDA18S1_RELA",/* name */
1470 FALSE
, /* partial_inplace */
1471 0x0003ffff, /* src_mask */
1472 0x0003ffff, /* dst_mask */
1473 FALSE
), /* pcrel_offset */
1475 HOWTO (R_NDS32_SDA19S0_RELA
, /* type */
1477 2, /* size (0 = byte, 1 = short, 2 = long) */
1479 FALSE
, /* pc_relative */
1481 complain_overflow_signed
, /* complain_on_overflow */
1482 bfd_elf_generic_reloc
, /* special_function */
1483 "R_NDS32_SDA19S0_RELA",/* name */
1484 FALSE
, /* partial_inplace */
1485 0x0007ffff, /* src_mask */
1486 0x0007ffff, /* dst_mask */
1487 FALSE
), /* pcrel_offset */
1488 HOWTO (R_NDS32_DWARF2_OP1_RELA
, /* type */
1490 0, /* size (0 = byte, 1 = short, 2 = long) */
1492 FALSE
, /* pc_relative */
1494 complain_overflow_dont
,/* complain_on_overflow */
1495 nds32_elf_ignore_reloc
,/* special_function */
1496 "R_NDS32_DWARF2_OP1_RELA", /* name */
1497 FALSE
, /* partial_inplace */
1498 0xff, /* src_mask */
1499 0xff, /* dst_mask */
1500 FALSE
), /* pcrel_offset */
1501 HOWTO (R_NDS32_DWARF2_OP2_RELA
, /* type */
1503 1, /* size (0 = byte, 1 = short, 2 = long) */
1505 FALSE
, /* pc_relative */
1507 complain_overflow_dont
,/* complain_on_overflow */
1508 nds32_elf_ignore_reloc
,/* special_function */
1509 "R_NDS32_DWARF2_OP2_RELA", /* name */
1510 FALSE
, /* partial_inplace */
1511 0xffff, /* src_mask */
1512 0xffff, /* dst_mask */
1513 FALSE
), /* pcrel_offset */
1514 HOWTO (R_NDS32_DWARF2_LEB_RELA
, /* type */
1516 2, /* size (0 = byte, 1 = short, 2 = long) */
1518 FALSE
, /* pc_relative */
1520 complain_overflow_dont
,/* complain_on_overflow */
1521 nds32_elf_ignore_reloc
,/* special_function */
1522 "R_NDS32_DWARF2_LEB_RELA", /* name */
1523 FALSE
, /* partial_inplace */
1524 0xffffffff, /* src_mask */
1525 0xffffffff, /* dst_mask */
1526 FALSE
), /* pcrel_offset */
1527 HOWTO (R_NDS32_UPDATE_TA_RELA
,/* type */
1529 1, /* size (0 = byte, 1 = short, 2 = long) */
1531 FALSE
, /* pc_relative */
1533 complain_overflow_dont
,/* complain_on_overflow */
1534 nds32_elf_ignore_reloc
,/* special_function */
1535 "R_NDS32_UPDATE_TA_RELA", /* name */
1536 FALSE
, /* partial_inplace */
1537 0xffff, /* src_mask */
1538 0xffff, /* dst_mask */
1539 FALSE
), /* pcrel_offset */
1540 /* Like R_NDS32_PCREL, but referring to the procedure linkage table
1541 entry for the symbol. */
1542 HOWTO (R_NDS32_9_PLTREL
, /* type */
1544 1, /* size (0 = byte, 1 = short, 2 = long) */
1546 TRUE
, /* pc_relative */
1548 complain_overflow_signed
, /* complain_on_overflow */
1549 bfd_elf_generic_reloc
, /* special_function */
1550 "R_NDS32_9_PLTREL", /* name */
1551 FALSE
, /* partial_inplace */
1552 0xff, /* src_mask */
1553 0xff, /* dst_mask */
1554 TRUE
), /* pcrel_offset */
1555 /* Low 20 bits of PLT symbol offset relative to GOT (GP). */
1556 HOWTO (R_NDS32_PLT_GOTREL_LO20
, /* type */
1558 2, /* size (0 = byte, 1 = short, 2 = long) */
1560 FALSE
, /* pc_relative */
1562 complain_overflow_dont
,/* complain_on_overflow */
1563 bfd_elf_generic_reloc
, /* special_function */
1564 "R_NDS32_PLT_GOTREL_LO20", /* name */
1565 FALSE
, /* partial_inplace */
1566 0x000fffff, /* src_mask */
1567 0x000fffff, /* dst_mask */
1568 FALSE
), /* pcrel_offset */
1569 /* low 15 bits of PLT symbol offset relative to GOT (GP) */
1570 HOWTO (R_NDS32_PLT_GOTREL_LO15
, /* type */
1572 2, /* size (0 = byte, 1 = short, 2 = long) */
1574 FALSE
, /* pc_relative */
1576 complain_overflow_dont
,/* complain_on_overflow */
1577 bfd_elf_generic_reloc
, /* special_function */
1578 "R_NDS32_PLT_GOTREL_LO15", /* name */
1579 FALSE
, /* partial_inplace */
1580 0x00007fff, /* src_mask */
1581 0x00007fff, /* dst_mask */
1582 FALSE
), /* pcrel_offset */
1583 /* Low 19 bits of PLT symbol offset relative to GOT (GP). */
1584 HOWTO (R_NDS32_PLT_GOTREL_LO19
, /* type */
1586 2, /* size (0 = byte, 1 = short, 2 = long) */
1588 FALSE
, /* pc_relative */
1590 complain_overflow_dont
,/* complain_on_overflow */
1591 bfd_elf_generic_reloc
, /* special_function */
1592 "R_NDS32_PLT_GOTREL_LO19", /* name */
1593 FALSE
, /* partial_inplace */
1594 0x0007ffff, /* src_mask */
1595 0x0007ffff, /* dst_mask */
1596 FALSE
), /* pcrel_offset */
1597 HOWTO (R_NDS32_GOT_LO15
, /* type */
1599 2, /* size (0 = byte, 1 = short, 2 = long) */
1601 FALSE
, /* pc_relative */
1603 complain_overflow_dont
,/* complain_on_overflow */
1604 bfd_elf_generic_reloc
, /* special_function */
1605 "R_NDS32_GOT_LO15", /* name */
1606 FALSE
, /* partial_inplace */
1607 0x00007fff, /* src_mask */
1608 0x00007fff, /* dst_mask */
1609 FALSE
), /* pcrel_offset */
1610 HOWTO (R_NDS32_GOT_LO19
, /* type */
1612 2, /* size (0 = byte, 1 = short, 2 = long) */
1614 FALSE
, /* pc_relative */
1616 complain_overflow_dont
,/* complain_on_overflow */
1617 bfd_elf_generic_reloc
, /* special_function */
1618 "R_NDS32_GOT_LO19", /* name */
1619 FALSE
, /* partial_inplace */
1620 0x0007ffff, /* src_mask */
1621 0x0007ffff, /* dst_mask */
1622 FALSE
), /* pcrel_offset */
1623 HOWTO (R_NDS32_GOTOFF_LO15
, /* type */
1625 2, /* size (0 = byte, 1 = short, 2 = long) */
1627 FALSE
, /* pc_relative */
1629 complain_overflow_dont
,/* complain_on_overflow */
1630 bfd_elf_generic_reloc
, /* special_function */
1631 "R_NDS32_GOTOFF_LO15", /* name */
1632 FALSE
, /* partial_inplace */
1633 0x00007fff, /* src_mask */
1634 0x00007fff, /* dst_mask */
1635 FALSE
), /* pcrel_offset */
1636 HOWTO (R_NDS32_GOTOFF_LO19
, /* type */
1638 2, /* size (0 = byte, 1 = short, 2 = long) */
1640 FALSE
, /* pc_relative */
1642 complain_overflow_dont
,/* complain_on_overflow */
1643 bfd_elf_generic_reloc
, /* special_function */
1644 "R_NDS32_GOTOFF_LO19", /* name */
1645 FALSE
, /* partial_inplace */
1646 0x0007ffff, /* src_mask */
1647 0x0007ffff, /* dst_mask */
1648 FALSE
), /* pcrel_offset */
1649 /* GOT 15 bits offset. */
1650 HOWTO (R_NDS32_GOT15S2_RELA
, /* type */
1652 2, /* size (0 = byte, 1 = short, 2 = long) */
1654 FALSE
, /* pc_relative */
1656 complain_overflow_signed
, /* complain_on_overflow */
1657 bfd_elf_generic_reloc
, /* special_function */
1658 "R_NDS32_GOT15S2_RELA",/* name */
1659 FALSE
, /* partial_inplace */
1660 0x00007fff, /* src_mask */
1661 0x00007fff, /* dst_mask */
1662 FALSE
), /* pcrel_offset */
1663 /* GOT 17 bits offset. */
1664 HOWTO (R_NDS32_GOT17S2_RELA
, /* type */
1666 2, /* size (0 = byte, 1 = short, 2 = long) */
1668 FALSE
, /* pc_relative */
1670 complain_overflow_signed
, /* complain_on_overflow */
1671 bfd_elf_generic_reloc
, /* special_function */
1672 "R_NDS32_GOT17S2_RELA",/* name */
1673 FALSE
, /* partial_inplace */
1674 0x0001ffff, /* src_mask */
1675 0x0001ffff, /* dst_mask */
1676 FALSE
), /* pcrel_offset */
1677 /* A 5 bit address. */
1678 HOWTO (R_NDS32_5_RELA
, /* type */
1680 1, /* size (0 = byte, 1 = short, 2 = long) */
1682 FALSE
, /* pc_relative */
1684 complain_overflow_signed
, /* complain_on_overflow */
1685 bfd_elf_generic_reloc
, /* special_function */
1686 "R_NDS32_5_RELA", /* name */
1687 FALSE
, /* partial_inplace */
1688 0x1f, /* src_mask */
1689 0x1f, /* dst_mask */
1690 FALSE
), /* pcrel_offset */
1691 HOWTO (R_NDS32_10_UPCREL_RELA
,/* type */
1693 1, /* size (0 = byte, 1 = short, 2 = long) */
1695 TRUE
, /* pc_relative */
1697 complain_overflow_unsigned
, /* complain_on_overflow */
1698 bfd_elf_generic_reloc
, /* special_function */
1699 "R_NDS32_10_UPCREL_RELA", /* name */
1700 FALSE
, /* partial_inplace */
1701 0x1ff, /* src_mask */
1702 0x1ff, /* dst_mask */
1703 TRUE
), /* pcrel_offset */
1704 HOWTO (R_NDS32_SDA_FP7U2_RELA
,/* type */
1706 1, /* size (0 = byte, 1 = short, 2 = long) */
1708 FALSE
, /* pc_relative */
1710 complain_overflow_unsigned
, /* complain_on_overflow */
1711 bfd_elf_generic_reloc
, /* special_function */
1712 "R_NDS32_SDA_FP7U2_RELA", /* name */
1713 FALSE
, /* partial_inplace */
1714 0x0000007f, /* src_mask */
1715 0x0000007f, /* dst_mask */
1716 FALSE
), /* pcrel_offset */
1717 HOWTO (R_NDS32_WORD_9_PCREL_RELA
, /* type */
1719 2, /* size (0 = byte, 1 = short, 2 = long) */
1721 TRUE
, /* pc_relative */
1723 complain_overflow_signed
, /* complain_on_overflow */
1724 bfd_elf_generic_reloc
, /* special_function */
1725 "R_NDS32_WORD_9_PCREL_RELA", /* name */
1726 FALSE
, /* partial_inplace */
1727 0xff, /* src_mask */
1728 0xff, /* dst_mask */
1729 TRUE
), /* pcrel_offset */
1730 HOWTO (R_NDS32_25_ABS_RELA
, /* type */
1732 2, /* size (0 = byte, 1 = short, 2 = long) */
1734 FALSE
, /* pc_relative */
1736 complain_overflow_dont
,/* complain_on_overflow */
1737 bfd_elf_generic_reloc
, /* special_function */
1738 "R_NDS32_25_ABS_RELA", /* name */
1739 FALSE
, /* partial_inplace */
1740 0xffffff, /* src_mask */
1741 0xffffff, /* dst_mask */
1742 FALSE
), /* pcrel_offset */
1744 /* A relative 17 bit relocation for ifc, right shifted by 1. */
1745 HOWTO (R_NDS32_17IFC_PCREL_RELA
, /* type */
1747 2, /* size (0 = byte, 1 = short, 2 = long) */
1749 TRUE
, /* pc_relative */
1751 complain_overflow_signed
, /* complain_on_overflow */
1752 bfd_elf_generic_reloc
, /* special_function */
1753 "R_NDS32_17IFC_PCREL_RELA", /* name */
1754 FALSE
, /* partial_inplace */
1755 0xffff, /* src_mask */
1756 0xffff, /* dst_mask */
1757 TRUE
), /* pcrel_offset */
1759 /* A relative unsigned 10 bit relocation for ifc, right shifted by 1. */
1760 HOWTO (R_NDS32_10IFCU_PCREL_RELA
, /* type */
1762 1, /* size (0 = byte, 1 = short, 2 = long) */
1764 TRUE
, /* pc_relative */
1766 complain_overflow_unsigned
, /* complain_on_overflow */
1767 bfd_elf_generic_reloc
, /* special_function */
1768 "R_NDS32_10IFCU_PCREL_RELA", /* name */
1769 FALSE
, /* partial_inplace */
1770 0x1ff, /* src_mask */
1771 0x1ff, /* dst_mask */
1772 TRUE
), /* pcrel_offset */
1774 /* Like R_NDS32_HI20, but referring to the TLS entry for the symbol. */
1775 HOWTO (R_NDS32_TLS_LE_HI20
, /* type */
1776 12, /* rightshift */
1777 2, /* size (0 = byte, 1 = short, 2 = long) */
1779 FALSE
, /* pc_relative */
1781 complain_overflow_dont
, /* complain_on_overflow */
1782 bfd_elf_generic_reloc
, /* special_function */
1783 "R_NDS32_TLS_LE_HI20", /* name */
1784 FALSE
, /* partial_inplace */
1785 0x000fffff, /* src_mask */
1786 0x000fffff, /* dst_mask */
1787 FALSE
), /* pcrel_offset */
1788 HOWTO (R_NDS32_TLS_LE_LO12
, /* type */
1790 2, /* size (0 = byte, 1 = short, 2 = long) */
1792 FALSE
, /* pc_relative */
1794 complain_overflow_dont
, /* complain_on_overflow */
1795 bfd_elf_generic_reloc
, /* special_function */
1796 "R_NDS32_TLS_LE_LO12", /* name */
1797 FALSE
, /* partial_inplace */
1798 0x00000fff, /* src_mask */
1799 0x00000fff, /* dst_mask */
1800 FALSE
), /* pcrel_offset */
1802 /* Like R_NDS32_HI20, but referring to the TLS entry for the symbol. */
1803 HOWTO (R_NDS32_TLS_IE_HI20
, /* type */
1804 12, /* rightshift */
1805 2, /* size (0 = byte, 1 = short, 2 = long) */
1807 FALSE
, /* pc_relative */
1809 complain_overflow_dont
, /* complain_on_overflow */
1810 bfd_elf_generic_reloc
, /* special_function */
1811 "R_NDS32_TLS_IE_HI20", /* name */
1812 FALSE
, /* partial_inplace */
1813 0x000fffff, /* src_mask */
1814 0x000fffff, /* dst_mask */
1815 FALSE
), /* pcrel_offset */
1816 HOWTO (R_NDS32_TLS_IE_LO12S2
, /* type */
1818 2, /* size (0 = byte, 1 = short, 2 = long) */
1820 FALSE
, /* pc_relative */
1822 complain_overflow_dont
, /* complain_on_overflow */
1823 bfd_elf_generic_reloc
, /* special_function */
1824 "R_NDS32_TLS_IE_LO12S2", /* name */
1825 FALSE
, /* partial_inplace */
1826 0x000003ff, /* src_mask */
1827 0x000003ff, /* dst_mask */
1828 FALSE
), /* pcrel_offset */
1829 /* Mark a TLS IE entry in GOT. */
1830 HOWTO (R_NDS32_TLS_TPOFF
, /* type */
1832 2, /* size (0 = byte, 1 = short, 2 = long) */
1834 FALSE
, /* pc_relative */
1836 complain_overflow_bitfield
, /* complain_on_overflow */
1837 bfd_elf_generic_reloc
, /* special_function */
1838 "R_NDS32_TLS_TPOFF", /* name */
1839 FALSE
, /* partial_inplace */
1840 0xffffffff, /* src_mask */
1841 0xffffffff, /* dst_mask */
1842 FALSE
), /* pcrel_offset */
1843 /* A 20 bit address. */
1844 HOWTO (R_NDS32_TLS_LE_20
, /* type */
1846 2, /* size (0 = byte, 1 = short, 2 = long) */
1848 FALSE
, /* pc_relative */
1850 complain_overflow_signed
, /* complain_on_overflow */
1851 bfd_elf_generic_reloc
, /* special_function */
1852 "R_NDS32_TLS_LE_20", /* name */
1853 FALSE
, /* partial_inplace */
1854 0xfffff, /* src_mask */
1855 0xfffff, /* dst_mask */
1856 FALSE
), /* pcrel_offset */
1857 HOWTO (R_NDS32_TLS_LE_15S0
, /* type */
1859 2, /* size (0 = byte, 1 = short, 2 = long) */
1861 FALSE
, /* pc_relative */
1863 complain_overflow_signed
, /* complain_on_overflow */
1864 bfd_elf_generic_reloc
, /* special_function */
1865 "R_NDS32_TLS_LE_15S0", /* name */
1866 FALSE
, /* partial_inplace */
1867 0x7fff, /* src_mask */
1868 0x7fff, /* dst_mask */
1869 FALSE
), /* pcrel_offset */
1870 HOWTO (R_NDS32_TLS_LE_15S1
, /* type */
1872 2, /* size (0 = byte, 1 = short, 2 = long) */
1874 FALSE
, /* pc_relative */
1876 complain_overflow_signed
, /* complain_on_overflow */
1877 bfd_elf_generic_reloc
, /* special_function */
1878 "R_NDS32_TLS_LE_15S1", /* name */
1879 FALSE
, /* partial_inplace */
1880 0x7fff, /* src_mask */
1881 0x7fff, /* dst_mask */
1882 FALSE
), /* pcrel_offset */
1883 HOWTO (R_NDS32_TLS_LE_15S2
, /* type */
1885 2, /* size (0 = byte, 1 = short, 2 = long) */
1887 FALSE
, /* pc_relative */
1889 complain_overflow_signed
, /* complain_on_overflow */
1890 bfd_elf_generic_reloc
, /* special_function */
1891 "R_NDS32_TLS_LE_15S2", /* name */
1892 FALSE
, /* partial_inplace */
1893 0x7fff, /* src_mask */
1894 0x7fff, /* dst_mask */
1895 FALSE
), /* pcrel_offset */
1897 /* Relax hint for unconditional call sequence */
1898 HOWTO (R_NDS32_LONGCALL4
, /* type */
1900 2, /* size (0 = byte, 1 = short, 2 = long) */
1902 FALSE
, /* pc_relative */
1904 complain_overflow_dont
, /* complain_on_overflow */
1905 nds32_elf_ignore_reloc
, /* special_function */
1906 "R_NDS32_LONGCALL4", /* name */
1907 FALSE
, /* partial_inplace */
1908 0xffffffff, /* src_mask */
1909 0xffffffff, /* dst_mask */
1910 FALSE
), /* pcrel_offset */
1912 /* Relax hint for conditional call sequence. */
1913 HOWTO (R_NDS32_LONGCALL5
, /* type */
1915 2, /* size (0 = byte, 1 = short, 2 = long) */
1917 FALSE
, /* pc_relative */
1919 complain_overflow_dont
, /* complain_on_overflow */
1920 nds32_elf_ignore_reloc
, /* special_function */
1921 "R_NDS32_LONGCALL5", /* name */
1922 FALSE
, /* partial_inplace */
1923 0xffffffff, /* src_mask */
1924 0xffffffff, /* dst_mask */
1925 FALSE
), /* pcrel_offset */
1927 /* Relax hint for conditional call sequence. */
1928 HOWTO (R_NDS32_LONGCALL6
, /* type */
1930 2, /* size (0 = byte, 1 = short, 2 = long) */
1932 FALSE
, /* pc_relative */
1934 complain_overflow_dont
, /* complain_on_overflow */
1935 nds32_elf_ignore_reloc
, /* special_function */
1936 "R_NDS32_LONGCALL6", /* name */
1937 FALSE
, /* partial_inplace */
1938 0xffffffff, /* src_mask */
1939 0xffffffff, /* dst_mask */
1940 FALSE
), /* pcrel_offset */
1942 /* Relax hint for unconditional branch sequence. */
1943 HOWTO (R_NDS32_LONGJUMP4
, /* type */
1945 2, /* size (0 = byte, 1 = short, 2 = long) */
1947 FALSE
, /* pc_relative */
1949 complain_overflow_dont
, /* complain_on_overflow */
1950 nds32_elf_ignore_reloc
, /* special_function */
1951 "R_NDS32_LONGJUMP4", /* name */
1952 FALSE
, /* partial_inplace */
1953 0xffffffff, /* src_mask */
1954 0xffffffff, /* dst_mask */
1955 FALSE
), /* pcrel_offset */
1957 /* Relax hint for conditional branch sequence. */
1958 HOWTO (R_NDS32_LONGJUMP5
, /* type */
1960 2, /* size (0 = byte, 1 = short, 2 = long) */
1962 FALSE
, /* pc_relative */
1964 complain_overflow_dont
, /* complain_on_overflow */
1965 nds32_elf_ignore_reloc
, /* special_function */
1966 "R_NDS32_LONGJUMP5", /* name */
1967 FALSE
, /* partial_inplace */
1968 0xffffffff, /* src_mask */
1969 0xffffffff, /* dst_mask */
1970 FALSE
), /* pcrel_offset */
1972 /* Relax hint for conditional branch sequence. */
1973 HOWTO (R_NDS32_LONGJUMP6
, /* type */
1975 2, /* size (0 = byte, 1 = short, 2 = long) */
1977 FALSE
, /* pc_relative */
1979 complain_overflow_dont
, /* complain_on_overflow */
1980 nds32_elf_ignore_reloc
, /* special_function */
1981 "R_NDS32_LONGJUMP6", /* name */
1982 FALSE
, /* partial_inplace */
1983 0xffffffff, /* src_mask */
1984 0xffffffff, /* dst_mask */
1985 FALSE
), /* pcrel_offset */
1987 /* Relax hint for conditional branch sequence. */
1988 HOWTO (R_NDS32_LONGJUMP7
, /* type */
1990 2, /* size (0 = byte, 1 = short, 2 = long) */
1992 FALSE
, /* pc_relative */
1994 complain_overflow_dont
, /* complain_on_overflow */
1995 nds32_elf_ignore_reloc
, /* special_function */
1996 "R_NDS32_LONGJUMP7", /* name */
1997 FALSE
, /* partial_inplace */
1998 0xffffffff, /* src_mask */
1999 0xffffffff, /* dst_mask */
2000 FALSE
), /* pcrel_offset */
2003 /* Relocations used for relaxation. */
2004 static reloc_howto_type nds32_elf_relax_howto_table
[] =
2006 HOWTO (R_NDS32_RELAX_ENTRY
, /* type */
2008 2, /* size (0 = byte, 1 = short, 2 = long) */
2010 FALSE
, /* pc_relative */
2012 complain_overflow_dont
,/* complain_on_overflow */
2013 nds32_elf_ignore_reloc
,/* special_function */
2014 "R_NDS32_RELAX_ENTRY", /* name */
2015 FALSE
, /* partial_inplace */
2016 0xffffffff, /* src_mask */
2017 0xffffffff, /* dst_mask */
2018 FALSE
), /* pcrel_offset */
2019 HOWTO (R_NDS32_GOT_SUFF
, /* type */
2021 2, /* size (0 = byte, 1 = short, 2 = long) */
2023 FALSE
, /* pc_relative */
2025 complain_overflow_dont
,/* complain_on_overflow */
2026 nds32_elf_ignore_reloc
,/* special_function */
2027 "R_NDS32_GOT_SUFF", /* name */
2028 FALSE
, /* partial_inplace */
2029 0xffffffff, /* src_mask */
2030 0xffffffff, /* dst_mask */
2031 FALSE
), /* pcrel_offset */
2032 HOWTO (R_NDS32_GOTOFF_SUFF
, /* type */
2034 2, /* size (0 = byte, 1 = short, 2 = long) */
2036 FALSE
, /* pc_relative */
2038 complain_overflow_bitfield
, /* complain_on_overflow */
2039 nds32_elf_ignore_reloc
,/* special_function */
2040 "R_NDS32_GOTOFF_SUFF", /* name */
2041 FALSE
, /* partial_inplace */
2042 0xffffffff, /* src_mask */
2043 0xffffffff, /* dst_mask */
2044 FALSE
), /* pcrel_offset */
2045 HOWTO (R_NDS32_PLT_GOT_SUFF
, /* type */
2047 2, /* size (0 = byte, 1 = short, 2 = long) */
2049 FALSE
, /* pc_relative */
2051 complain_overflow_dont
,/* complain_on_overflow */
2052 nds32_elf_ignore_reloc
,/* special_function */
2053 "R_NDS32_PLT_GOT_SUFF",/* name */
2054 FALSE
, /* partial_inplace */
2055 0xffffffff, /* src_mask */
2056 0xffffffff, /* dst_mask */
2057 FALSE
), /* pcrel_offset */
2058 HOWTO (R_NDS32_MULCALL_SUFF
, /* type */
2060 2, /* size (0 = byte, 1 = short, 2 = long) */
2062 FALSE
, /* pc_relative */
2064 complain_overflow_dont
,/* complain_on_overflow */
2065 nds32_elf_ignore_reloc
,/* special_function */
2066 "R_NDS32_MULCALL_SUFF",/* name */
2067 FALSE
, /* partial_inplace */
2068 0xffffffff, /* src_mask */
2069 0xffffffff, /* dst_mask */
2070 FALSE
), /* pcrel_offset */
2071 HOWTO (R_NDS32_PTR
, /* type */
2073 2, /* size (0 = byte, 1 = short, 2 = long) */
2075 FALSE
, /* pc_relative */
2077 complain_overflow_dont
,/* complain_on_overflow */
2078 nds32_elf_ignore_reloc
,/* special_function */
2079 "R_NDS32_PTR", /* name */
2080 FALSE
, /* partial_inplace */
2081 0xffffffff, /* src_mask */
2082 0xffffffff, /* dst_mask */
2083 FALSE
), /* pcrel_offset */
2084 HOWTO (R_NDS32_PTR_COUNT
, /* type */
2086 2, /* size (0 = byte, 1 = short, 2 = long) */
2088 FALSE
, /* pc_relative */
2090 complain_overflow_dont
,/* complain_on_overflow */
2091 nds32_elf_ignore_reloc
,/* special_function */
2092 "R_NDS32_PTR_COUNT", /* name */
2093 FALSE
, /* partial_inplace */
2094 0xffffffff, /* src_mask */
2095 0xffffffff, /* dst_mask */
2096 FALSE
), /* pcrel_offset */
2097 HOWTO (R_NDS32_PTR_RESOLVED
, /* type */
2099 2, /* size (0 = byte, 1 = short, 2 = long) */
2101 FALSE
, /* pc_relative */
2103 complain_overflow_dont
,/* complain_on_overflow */
2104 nds32_elf_ignore_reloc
,/* special_function */
2105 "R_NDS32_PTR_RESOLVED",/* name */
2106 FALSE
, /* partial_inplace */
2107 0xffffffff, /* src_mask */
2108 0xffffffff, /* dst_mask */
2109 FALSE
), /* pcrel_offset */
2110 HOWTO (R_NDS32_PLTBLOCK
, /* type */
2112 2, /* size (0 = byte, 1 = short, 2 = long) */
2114 FALSE
, /* pc_relative */
2116 complain_overflow_dont
,/* complain_on_overflow */
2117 nds32_elf_ignore_reloc
,/* special_function */
2118 "R_NDS32_PLTBLOCK", /* name */
2119 FALSE
, /* partial_inplace */
2120 0xffffffff, /* src_mask */
2121 0xffffffff, /* dst_mask */
2122 FALSE
), /* pcrel_offset */
2123 HOWTO (R_NDS32_RELAX_REGION_BEGIN
, /* type */
2125 2, /* size (0 = byte, 1 = short, 2 = long) */
2127 FALSE
, /* pc_relative */
2129 complain_overflow_dont
,/* complain_on_overflow */
2130 nds32_elf_ignore_reloc
,/* special_function */
2131 "R_NDS32_RELAX_REGION_BEGIN", /* name */
2132 FALSE
, /* partial_inplace */
2133 0xffffffff, /* src_mask */
2134 0xffffffff, /* dst_mask */
2135 FALSE
), /* pcrel_offset */
2136 HOWTO (R_NDS32_RELAX_REGION_END
, /* type */
2138 2, /* size (0 = byte, 1 = short, 2 = long) */
2140 FALSE
, /* pc_relative */
2142 complain_overflow_dont
,/* complain_on_overflow */
2143 nds32_elf_ignore_reloc
,/* special_function */
2144 "R_NDS32_RELAX_REGION_END", /* name */
2145 FALSE
, /* partial_inplace */
2146 0xffffffff, /* src_mask */
2147 0xffffffff, /* dst_mask */
2148 FALSE
), /* pcrel_offset */
2149 HOWTO (R_NDS32_MINUEND
, /* type */
2151 2, /* size (0 = byte, 1 = short, 2 = long) */
2153 FALSE
, /* pc_relative */
2155 complain_overflow_dont
,/* complain_on_overflow */
2156 nds32_elf_ignore_reloc
,/* special_function */
2157 "R_NDS32_MINUEND", /* name */
2158 FALSE
, /* partial_inplace */
2159 0xffffffff, /* src_mask */
2160 0xffffffff, /* dst_mask */
2161 FALSE
), /* pcrel_offset */
2162 HOWTO (R_NDS32_SUBTRAHEND
, /* type */
2164 2, /* size (0 = byte, 1 = short, 2 = long) */
2166 FALSE
, /* pc_relative */
2168 complain_overflow_dont
,/* complain_on_overflow */
2169 nds32_elf_ignore_reloc
,/* special_function */
2170 "R_NDS32_SUBTRAHEND", /* name */
2171 FALSE
, /* partial_inplace */
2172 0xffffffff, /* src_mask */
2173 0xffffffff, /* dst_mask */
2174 FALSE
), /* pcrel_offset */
2175 HOWTO (R_NDS32_DIFF8
, /* type */
2177 0, /* size (0 = byte, 1 = short, 2 = long) */
2179 FALSE
, /* pc_relative */
2181 complain_overflow_dont
,/* complain_on_overflow */
2182 nds32_elf_ignore_reloc
,/* special_function */
2183 "R_NDS32_DIFF8", /* name */
2184 FALSE
, /* partial_inplace */
2185 0x000000ff, /* src_mask */
2186 0x000000ff, /* dst_mask */
2187 FALSE
), /* pcrel_offset */
2188 HOWTO (R_NDS32_DIFF16
, /* type */
2190 1, /* size (0 = byte, 1 = short, 2 = long) */
2192 FALSE
, /* pc_relative */
2194 complain_overflow_dont
,/* complain_on_overflow */
2195 nds32_elf_ignore_reloc
,/* special_function */
2196 "R_NDS32_DIFF16", /* name */
2197 FALSE
, /* partial_inplace */
2198 0x0000ffff, /* src_mask */
2199 0x0000ffff, /* dst_mask */
2200 FALSE
), /* pcrel_offset */
2201 HOWTO (R_NDS32_DIFF32
, /* type */
2203 2, /* size (0 = byte, 1 = short, 2 = long) */
2205 FALSE
, /* pc_relative */
2207 complain_overflow_dont
,/* complain_on_overflow */
2208 nds32_elf_ignore_reloc
,/* special_function */
2209 "R_NDS32_DIFF32", /* name */
2210 FALSE
, /* partial_inplace */
2211 0xffffffff, /* src_mask */
2212 0xffffffff, /* dst_mask */
2213 FALSE
), /* pcrel_offset */
2214 HOWTO (R_NDS32_DIFF_ULEB128
, /* type */
2216 0, /* size (0 = byte, 1 = short, 2 = long) */
2218 FALSE
, /* pc_relative */
2220 complain_overflow_dont
,/* complain_on_overflow */
2221 nds32_elf_ignore_reloc
,/* special_function */
2222 "R_NDS32_DIFF_ULEB128",/* name */
2223 FALSE
, /* partial_inplace */
2224 0xffffffff, /* src_mask */
2225 0xffffffff, /* dst_mask */
2226 FALSE
), /* pcrel_offset */
2227 HOWTO (R_NDS32_DATA
, /* type */
2229 2, /* size (0 = byte, 1 = short, 2 = long) */
2231 FALSE
, /* pc_relative */
2233 complain_overflow_dont
,/* complain_on_overflow */
2234 nds32_elf_ignore_reloc
,/* special_function */
2235 "R_NDS32_DATA", /* name */
2236 FALSE
, /* partial_inplace */
2237 0xffffffff, /* src_mask */
2238 0xffffffff, /* dst_mask */
2239 FALSE
), /* pcrel_offset */
2240 HOWTO (R_NDS32_TRAN
, /* type */
2242 2, /* size (0 = byte, 1 = short, 2 = long) */
2244 FALSE
, /* pc_relative */
2246 complain_overflow_dont
,/* complain_on_overflow */
2247 nds32_elf_ignore_reloc
,/* special_function */
2248 "R_NDS32_TRAN", /* name */
2249 FALSE
, /* partial_inplace */
2250 0xffffffff, /* src_mask */
2251 0xffffffff, /* dst_mask */
2252 FALSE
), /* pcrel_offset */
2253 HOWTO (R_NDS32_TLS_LE_ADD
, /* type */
2255 2, /* size (0 = byte, 1 = short, 2 = long) */
2257 FALSE
, /* pc_relative */
2259 complain_overflow_dont
, /* complain_on_overflow */
2260 nds32_elf_ignore_reloc
, /* special_function */
2261 "R_NDS32_TLS_LE_ADD", /* name */
2262 FALSE
, /* partial_inplace */
2263 0xffffffff, /* src_mask */
2264 0xffffffff, /* dst_mask */
2265 FALSE
), /* pcrel_offset */
2266 HOWTO (R_NDS32_TLS_LE_LS
, /* type */
2268 2, /* size (0 = byte, 1 = short, 2 = long) */
2270 FALSE
, /* pc_relative */
2272 complain_overflow_dont
, /* complain_on_overflow */
2273 nds32_elf_ignore_reloc
, /* special_function */
2274 "R_NDS32_TLS_LE_LS", /* name */
2275 FALSE
, /* partial_inplace */
2276 0xffffffff, /* src_mask */
2277 0xffffffff, /* dst_mask */
2278 FALSE
), /* pcrel_offset */
2279 HOWTO (R_NDS32_EMPTY
, /* type */
2281 2, /* size (0 = byte, 1 = short, 2 = long) */
2283 FALSE
, /* pc_relative */
2285 complain_overflow_dont
, /* complain_on_overflow */
2286 nds32_elf_ignore_reloc
, /* special_function */
2287 "R_NDS32_EMPTY", /* name */
2288 FALSE
, /* partial_inplace */
2289 0xffffffff, /* src_mask */
2290 0xffffffff, /* dst_mask */
2291 FALSE
), /* pcrel_offset */
2295 /* nds32_insertion_sort sorts an array with nmemb elements of size size.
2296 This prototype is the same as qsort (). */
2299 nds32_insertion_sort (void *base
, size_t nmemb
, size_t size
,
2300 int (*compar
) (const void *lhs
, const void *rhs
))
2302 char *ptr
= (char *) base
;
2304 char *tmp
= xmalloc (size
);
2306 /* If i is less than j, i is inserted before j.
2308 |---- j ----- i --------------|
2313 for (i
= 1; i
< (int) nmemb
; i
++)
2315 for (j
= (i
- 1); j
>= 0; j
--)
2316 if (compar (ptr
+ i
* size
, ptr
+ j
* size
) >= 0)
2322 continue; /* i is in order. */
2324 memcpy (tmp
, ptr
+ i
* size
, size
);
2325 memmove (ptr
+ (j
+ 1) * size
, ptr
+ j
* size
, (i
- j
) * size
);
2326 memcpy (ptr
+ j
* size
, tmp
, size
);
2331 /* Sort relocation by r_offset.
2333 We didn't use qsort () in stdlib, because quick-sort is not a stable sorting
2334 algorithm. Relocations at the same r_offset must keep their order.
2335 For example, RELAX_ENTRY must be the very first relocation entry.
2337 Currently, this function implements insertion-sort.
2339 FIXME: If we already sort them in assembler, why bother sort them
2343 compar_reloc (const void *lhs
, const void *rhs
)
2345 const Elf_Internal_Rela
*l
= (const Elf_Internal_Rela
*) lhs
;
2346 const Elf_Internal_Rela
*r
= (const Elf_Internal_Rela
*) rhs
;
2348 if (l
->r_offset
> r
->r_offset
)
2350 else if (l
->r_offset
== r
->r_offset
)
2356 /* Functions listed below are only used for old relocs.
2357 * nds32_elf_9_pcrel_reloc
2358 * nds32_elf_do_9_pcrel_reloc
2359 * nds32_elf_hi20_reloc
2360 * nds32_elf_relocate_hi20
2361 * nds32_elf_lo12_reloc
2362 * nds32_elf_sda15_reloc
2363 * nds32_elf_generic_reloc
2366 /* Handle the R_NDS32_9_PCREL & R_NDS32_9_PCREL_RELA reloc. */
2368 static bfd_reloc_status_type
2369 nds32_elf_9_pcrel_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2370 void *data
, asection
*input_section
, bfd
*output_bfd
,
2371 char **error_message ATTRIBUTE_UNUSED
)
2373 /* This part is from bfd_elf_generic_reloc. */
2374 if (output_bfd
!= (bfd
*) NULL
2375 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
2376 && (!reloc_entry
->howto
->partial_inplace
|| reloc_entry
->addend
== 0))
2378 reloc_entry
->address
+= input_section
->output_offset
;
2379 return bfd_reloc_ok
;
2382 if (output_bfd
!= NULL
)
2384 /* FIXME: See bfd_perform_relocation. Is this right? */
2385 return bfd_reloc_continue
;
2388 return nds32_elf_do_9_pcrel_reloc (abfd
, reloc_entry
->howto
,
2390 data
, reloc_entry
->address
,
2393 + symbol
->section
->output_section
->vma
2394 + symbol
->section
->output_offset
),
2395 reloc_entry
->addend
);
2398 /* Utility to actually perform an R_NDS32_9_PCREL reloc. */
2399 #define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1)
2401 static bfd_reloc_status_type
2402 nds32_elf_do_9_pcrel_reloc (bfd
*abfd
, reloc_howto_type
*howto
,
2403 asection
*input_section
, bfd_byte
*data
,
2405 asection
*symbol_section ATTRIBUTE_UNUSED
,
2406 bfd_vma symbol_value
, bfd_vma addend
)
2408 bfd_signed_vma relocation
;
2410 bfd_reloc_status_type status
;
2412 /* Sanity check the address (offset in section). */
2413 if (offset
> bfd_get_section_limit (abfd
, input_section
))
2414 return bfd_reloc_outofrange
;
2416 relocation
= symbol_value
+ addend
;
2417 /* Make it pc relative. */
2418 relocation
-= (input_section
->output_section
->vma
2419 + input_section
->output_offset
);
2420 /* These jumps mask off the lower two bits of the current address
2421 before doing pcrel calculations. */
2422 relocation
-= (offset
& -(bfd_vma
) 2);
2424 if (relocation
< -ACCURATE_8BIT_S1
|| relocation
>= ACCURATE_8BIT_S1
)
2425 status
= bfd_reloc_overflow
;
2427 status
= bfd_reloc_ok
;
2429 x
= bfd_getb16 (data
+ offset
);
2431 relocation
>>= howto
->rightshift
;
2432 relocation
<<= howto
->bitpos
;
2433 x
= (x
& ~howto
->dst_mask
)
2434 | (((x
& howto
->src_mask
) + relocation
) & howto
->dst_mask
);
2436 bfd_putb16 ((bfd_vma
) x
, data
+ offset
);
2441 /* Handle the R_NDS32_HI20_[SU]LO relocs.
2442 HI20_SLO is for the add3 and load/store with displacement instructions.
2443 HI20 is for the or3 instruction.
2444 For R_NDS32_HI20_SLO, the lower 16 bits are sign extended when added to
2445 the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
2446 we must add one to the high 16 bytes (which will get subtracted off when
2447 the low 16 bits are added).
2448 These relocs have to be done in combination with an R_NDS32_LO12 reloc
2449 because there is a carry from the LO12 to the HI20. Here we just save
2450 the information we need; we do the actual relocation when we see the LO12.
2451 This code is copied from the elf32-mips.c. We also support an arbitrary
2452 number of HI20 relocs to be associated with a single LO12 reloc. The
2453 assembler sorts the relocs to ensure each HI20 immediately precedes its
2454 LO12. However if there are multiple copies, the assembler may not find
2455 the real LO12 so it picks the first one it finds. */
2459 struct nds32_hi20
*next
;
2464 static struct nds32_hi20
*nds32_hi20_list
;
2466 static bfd_reloc_status_type
2467 nds32_elf_hi20_reloc (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*reloc_entry
,
2468 asymbol
*symbol
, void *data
, asection
*input_section
,
2469 bfd
*output_bfd
, char **error_message ATTRIBUTE_UNUSED
)
2471 bfd_reloc_status_type ret
;
2473 struct nds32_hi20
*n
;
2475 /* This part is from bfd_elf_generic_reloc.
2476 If we're relocating, and this an external symbol, we don't want
2477 to change anything. */
2478 if (output_bfd
!= (bfd
*) NULL
2479 && (symbol
->flags
& BSF_SECTION_SYM
) == 0 && reloc_entry
->addend
== 0)
2481 reloc_entry
->address
+= input_section
->output_offset
;
2482 return bfd_reloc_ok
;
2485 /* Sanity check the address (offset in section). */
2486 if (reloc_entry
->address
> bfd_get_section_limit (abfd
, input_section
))
2487 return bfd_reloc_outofrange
;
2490 if (bfd_is_und_section (symbol
->section
) && output_bfd
== (bfd
*) NULL
)
2491 ret
= bfd_reloc_undefined
;
2493 if (bfd_is_com_section (symbol
->section
))
2496 relocation
= symbol
->value
;
2498 relocation
+= symbol
->section
->output_section
->vma
;
2499 relocation
+= symbol
->section
->output_offset
;
2500 relocation
+= reloc_entry
->addend
;
2502 /* Save the information, and let LO12 do the actual relocation. */
2503 n
= (struct nds32_hi20
*) bfd_malloc ((bfd_size_type
) sizeof *n
);
2505 return bfd_reloc_outofrange
;
2507 n
->addr
= (bfd_byte
*) data
+ reloc_entry
->address
;
2508 n
->addend
= relocation
;
2509 n
->next
= nds32_hi20_list
;
2510 nds32_hi20_list
= n
;
2512 if (output_bfd
!= (bfd
*) NULL
)
2513 reloc_entry
->address
+= input_section
->output_offset
;
2518 /* Handle an NDS32 ELF HI20 reloc. */
2521 nds32_elf_relocate_hi20 (bfd
*input_bfd ATTRIBUTE_UNUSED
,
2522 int type ATTRIBUTE_UNUSED
, Elf_Internal_Rela
*relhi
,
2523 Elf_Internal_Rela
*rello
, bfd_byte
*contents
,
2529 insn
= bfd_getb32 (contents
+ relhi
->r_offset
);
2531 addlo
= bfd_getb32 (contents
+ rello
->r_offset
);
2534 addend
+= ((insn
& 0xfffff) << 20) + addlo
;
2536 insn
= (insn
& 0xfff00000) | ((addend
>> 12) & 0xfffff);
2537 bfd_putb32 (insn
, contents
+ relhi
->r_offset
);
2540 /* Do an R_NDS32_LO12 relocation. This is a straightforward 12 bit
2541 inplace relocation; this function exists in order to do the
2542 R_NDS32_HI20_[SU]LO relocation described above. */
2544 static bfd_reloc_status_type
2545 nds32_elf_lo12_reloc (bfd
*input_bfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2546 void *data
, asection
*input_section
, bfd
*output_bfd
,
2547 char **error_message
)
2549 /* This part is from bfd_elf_generic_reloc.
2550 If we're relocating, and this an external symbol, we don't want
2551 to change anything. */
2552 if (output_bfd
!= NULL
&& (symbol
->flags
& BSF_SECTION_SYM
) == 0
2553 && reloc_entry
->addend
== 0)
2555 reloc_entry
->address
+= input_section
->output_offset
;
2556 return bfd_reloc_ok
;
2559 if (nds32_hi20_list
!= NULL
)
2561 struct nds32_hi20
*l
;
2563 l
= nds32_hi20_list
;
2568 unsigned long vallo
;
2569 struct nds32_hi20
*next
;
2571 /* Do the HI20 relocation. Note that we actually don't need
2572 to know anything about the LO12 itself, except where to
2573 find the low 12 bits of the addend needed by the LO12. */
2574 insn
= bfd_getb32 (l
->addr
);
2575 vallo
= bfd_getb32 ((bfd_byte
*) data
+ reloc_entry
->address
);
2577 switch (reloc_entry
->howto
->type
)
2579 case R_NDS32_LO12S3
:
2583 case R_NDS32_LO12S2
:
2587 case R_NDS32_LO12S1
:
2591 case R_NDS32_LO12S0
:
2596 val
= ((insn
& 0xfffff) << 12) + vallo
;
2599 insn
= (insn
& ~(bfd_vma
) 0xfffff) | ((val
>> 12) & 0xfffff);
2600 bfd_putb32 ((bfd_vma
) insn
, l
->addr
);
2607 nds32_hi20_list
= NULL
;
2610 /* Now do the LO12 reloc in the usual way.
2611 ??? It would be nice to call bfd_elf_generic_reloc here,
2612 but we have partial_inplace set. bfd_elf_generic_reloc will
2613 pass the handling back to bfd_install_relocation which will install
2614 a section relative addend which is wrong. */
2615 return nds32_elf_generic_reloc (input_bfd
, reloc_entry
, symbol
, data
,
2616 input_section
, output_bfd
, error_message
);
2619 /* Do generic partial_inplace relocation.
2620 This is a local replacement for bfd_elf_generic_reloc. */
2622 static bfd_reloc_status_type
2623 nds32_elf_generic_reloc (bfd
*input_bfd
, arelent
*reloc_entry
,
2624 asymbol
*symbol
, void *data
, asection
*input_section
,
2625 bfd
*output_bfd
, char **error_message ATTRIBUTE_UNUSED
)
2627 bfd_reloc_status_type ret
;
2629 bfd_byte
*inplace_address
;
2631 /* This part is from bfd_elf_generic_reloc.
2632 If we're relocating, and this an external symbol, we don't want
2633 to change anything. */
2634 if (output_bfd
!= NULL
&& (symbol
->flags
& BSF_SECTION_SYM
) == 0
2635 && reloc_entry
->addend
== 0)
2637 reloc_entry
->address
+= input_section
->output_offset
;
2638 return bfd_reloc_ok
;
2641 /* Now do the reloc in the usual way.
2642 ??? It would be nice to call bfd_elf_generic_reloc here,
2643 but we have partial_inplace set. bfd_elf_generic_reloc will
2644 pass the handling back to bfd_install_relocation which will install
2645 a section relative addend which is wrong. */
2647 /* Sanity check the address (offset in section). */
2648 if (reloc_entry
->address
> bfd_get_section_limit (input_bfd
, input_section
))
2649 return bfd_reloc_outofrange
;
2652 if (bfd_is_und_section (symbol
->section
) && output_bfd
== (bfd
*) NULL
)
2653 ret
= bfd_reloc_undefined
;
2655 if (bfd_is_com_section (symbol
->section
) || output_bfd
!= (bfd
*) NULL
)
2658 relocation
= symbol
->value
;
2660 /* Only do this for a final link. */
2661 if (output_bfd
== (bfd
*) NULL
)
2663 relocation
+= symbol
->section
->output_section
->vma
;
2664 relocation
+= symbol
->section
->output_offset
;
2667 relocation
+= reloc_entry
->addend
;
2668 switch (reloc_entry
->howto
->type
)
2670 case R_NDS32_LO12S3
:
2674 case R_NDS32_LO12S2
:
2678 case R_NDS32_LO12S1
:
2682 case R_NDS32_LO12S0
:
2688 inplace_address
= (bfd_byte
*) data
+ reloc_entry
->address
;
2691 x = ((x & ~reloc_entry->howto->dst_mask) | \
2692 (((x & reloc_entry->howto->src_mask) + relocation) & \
2693 reloc_entry->howto->dst_mask))
2695 switch (reloc_entry
->howto
->size
)
2699 short x
= bfd_getb16 (inplace_address
);
2702 bfd_putb16 ((bfd_vma
) x
, inplace_address
);
2707 unsigned long x
= bfd_getb32 (inplace_address
);
2710 bfd_putb32 ((bfd_vma
) x
, inplace_address
);
2717 if (output_bfd
!= (bfd
*) NULL
)
2718 reloc_entry
->address
+= input_section
->output_offset
;
2723 /* Handle the R_NDS32_SDA15 reloc.
2724 This reloc is used to compute the address of objects in the small data area
2725 and to perform loads and stores from that area.
2726 The lower 15 bits are sign extended and added to the register specified
2727 in the instruction, which is assumed to point to _SDA_BASE_.
2729 Since the lower 15 bits offset is left-shifted 0, 1 or 2 bits depending on
2730 the access size, this must be taken care of. */
2732 static bfd_reloc_status_type
2733 nds32_elf_sda15_reloc (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*reloc_entry
,
2734 asymbol
*symbol
, void *data ATTRIBUTE_UNUSED
,
2735 asection
*input_section
, bfd
*output_bfd
,
2736 char **error_message ATTRIBUTE_UNUSED
)
2738 /* This part is from bfd_elf_generic_reloc. */
2739 if (output_bfd
!= (bfd
*) NULL
2740 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
2741 && (!reloc_entry
->howto
->partial_inplace
|| reloc_entry
->addend
== 0))
2743 reloc_entry
->address
+= input_section
->output_offset
;
2744 return bfd_reloc_ok
;
2747 if (output_bfd
!= NULL
)
2749 /* FIXME: See bfd_perform_relocation. Is this right? */
2750 return bfd_reloc_continue
;
2753 /* FIXME: not sure what to do here yet. But then again, the linker
2754 may never call us. */
2758 /* nds32_elf_ignore_reloc is the special function for
2759 relocation types which don't need to be relocated
2760 like relaxation relocation types.
2761 This function simply return bfd_reloc_ok when it is
2764 static bfd_reloc_status_type
2765 nds32_elf_ignore_reloc (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*reloc_entry
,
2766 asymbol
*symbol ATTRIBUTE_UNUSED
,
2767 void *data ATTRIBUTE_UNUSED
, asection
*input_section
,
2768 bfd
*output_bfd
, char **error_message ATTRIBUTE_UNUSED
)
2770 if (output_bfd
!= NULL
)
2771 reloc_entry
->address
+= input_section
->output_offset
;
2773 return bfd_reloc_ok
;
2777 /* Map BFD reloc types to NDS32 ELF reloc types. */
2779 struct nds32_reloc_map_entry
2781 bfd_reloc_code_real_type bfd_reloc_val
;
2782 unsigned char elf_reloc_val
;
2785 static const struct nds32_reloc_map_entry nds32_reloc_map
[] =
2787 {BFD_RELOC_NONE
, R_NDS32_NONE
},
2788 {BFD_RELOC_16
, R_NDS32_16_RELA
},
2789 {BFD_RELOC_32
, R_NDS32_32_RELA
},
2790 {BFD_RELOC_NDS32_20
, R_NDS32_20_RELA
},
2791 {BFD_RELOC_NDS32_5
, R_NDS32_5_RELA
},
2792 {BFD_RELOC_NDS32_9_PCREL
, R_NDS32_9_PCREL_RELA
},
2793 {BFD_RELOC_NDS32_WORD_9_PCREL
, R_NDS32_WORD_9_PCREL_RELA
},
2794 {BFD_RELOC_NDS32_15_PCREL
, R_NDS32_15_PCREL_RELA
},
2795 {BFD_RELOC_NDS32_17_PCREL
, R_NDS32_17_PCREL_RELA
},
2796 {BFD_RELOC_NDS32_25_PCREL
, R_NDS32_25_PCREL_RELA
},
2797 {BFD_RELOC_NDS32_10_UPCREL
, R_NDS32_10_UPCREL_RELA
},
2798 {BFD_RELOC_NDS32_HI20
, R_NDS32_HI20_RELA
},
2799 {BFD_RELOC_NDS32_LO12S3
, R_NDS32_LO12S3_RELA
},
2800 {BFD_RELOC_NDS32_LO12S2
, R_NDS32_LO12S2_RELA
},
2801 {BFD_RELOC_NDS32_LO12S1
, R_NDS32_LO12S1_RELA
},
2802 {BFD_RELOC_NDS32_LO12S0
, R_NDS32_LO12S0_RELA
},
2803 {BFD_RELOC_NDS32_LO12S0_ORI
, R_NDS32_LO12S0_ORI_RELA
},
2804 {BFD_RELOC_NDS32_SDA15S3
, R_NDS32_SDA15S3_RELA
},
2805 {BFD_RELOC_NDS32_SDA15S2
, R_NDS32_SDA15S2_RELA
},
2806 {BFD_RELOC_NDS32_SDA15S1
, R_NDS32_SDA15S1_RELA
},
2807 {BFD_RELOC_NDS32_SDA15S0
, R_NDS32_SDA15S0_RELA
},
2808 {BFD_RELOC_VTABLE_INHERIT
, R_NDS32_RELA_GNU_VTINHERIT
},
2809 {BFD_RELOC_VTABLE_ENTRY
, R_NDS32_RELA_GNU_VTENTRY
},
2811 {BFD_RELOC_NDS32_GOT20
, R_NDS32_GOT20
},
2812 {BFD_RELOC_NDS32_9_PLTREL
, R_NDS32_9_PLTREL
},
2813 {BFD_RELOC_NDS32_25_PLTREL
, R_NDS32_25_PLTREL
},
2814 {BFD_RELOC_NDS32_COPY
, R_NDS32_COPY
},
2815 {BFD_RELOC_NDS32_GLOB_DAT
, R_NDS32_GLOB_DAT
},
2816 {BFD_RELOC_NDS32_JMP_SLOT
, R_NDS32_JMP_SLOT
},
2817 {BFD_RELOC_NDS32_RELATIVE
, R_NDS32_RELATIVE
},
2818 {BFD_RELOC_NDS32_GOTOFF
, R_NDS32_GOTOFF
},
2819 {BFD_RELOC_NDS32_GOTPC20
, R_NDS32_GOTPC20
},
2820 {BFD_RELOC_NDS32_GOT_HI20
, R_NDS32_GOT_HI20
},
2821 {BFD_RELOC_NDS32_GOT_LO12
, R_NDS32_GOT_LO12
},
2822 {BFD_RELOC_NDS32_GOT_LO15
, R_NDS32_GOT_LO15
},
2823 {BFD_RELOC_NDS32_GOT_LO19
, R_NDS32_GOT_LO19
},
2824 {BFD_RELOC_NDS32_GOTPC_HI20
, R_NDS32_GOTPC_HI20
},
2825 {BFD_RELOC_NDS32_GOTPC_LO12
, R_NDS32_GOTPC_LO12
},
2826 {BFD_RELOC_NDS32_GOTOFF_HI20
, R_NDS32_GOTOFF_HI20
},
2827 {BFD_RELOC_NDS32_GOTOFF_LO12
, R_NDS32_GOTOFF_LO12
},
2828 {BFD_RELOC_NDS32_GOTOFF_LO15
, R_NDS32_GOTOFF_LO15
},
2829 {BFD_RELOC_NDS32_GOTOFF_LO19
, R_NDS32_GOTOFF_LO19
},
2830 {BFD_RELOC_NDS32_INSN16
, R_NDS32_INSN16
},
2831 {BFD_RELOC_NDS32_LABEL
, R_NDS32_LABEL
},
2832 {BFD_RELOC_NDS32_LONGCALL1
, R_NDS32_LONGCALL1
},
2833 {BFD_RELOC_NDS32_LONGCALL2
, R_NDS32_LONGCALL2
},
2834 {BFD_RELOC_NDS32_LONGCALL3
, R_NDS32_LONGCALL3
},
2835 {BFD_RELOC_NDS32_LONGCALL4
, R_NDS32_LONGCALL4
},
2836 {BFD_RELOC_NDS32_LONGCALL5
, R_NDS32_LONGCALL5
},
2837 {BFD_RELOC_NDS32_LONGCALL6
, R_NDS32_LONGCALL6
},
2838 {BFD_RELOC_NDS32_LONGJUMP1
, R_NDS32_LONGJUMP1
},
2839 {BFD_RELOC_NDS32_LONGJUMP2
, R_NDS32_LONGJUMP2
},
2840 {BFD_RELOC_NDS32_LONGJUMP3
, R_NDS32_LONGJUMP3
},
2841 {BFD_RELOC_NDS32_LONGJUMP4
, R_NDS32_LONGJUMP4
},
2842 {BFD_RELOC_NDS32_LONGJUMP5
, R_NDS32_LONGJUMP5
},
2843 {BFD_RELOC_NDS32_LONGJUMP6
, R_NDS32_LONGJUMP6
},
2844 {BFD_RELOC_NDS32_LONGJUMP7
, R_NDS32_LONGJUMP7
},
2845 {BFD_RELOC_NDS32_LOADSTORE
, R_NDS32_LOADSTORE
},
2846 {BFD_RELOC_NDS32_9_FIXED
, R_NDS32_9_FIXED_RELA
},
2847 {BFD_RELOC_NDS32_15_FIXED
, R_NDS32_15_FIXED_RELA
},
2848 {BFD_RELOC_NDS32_17_FIXED
, R_NDS32_17_FIXED_RELA
},
2849 {BFD_RELOC_NDS32_25_FIXED
, R_NDS32_25_FIXED_RELA
},
2850 {BFD_RELOC_NDS32_PLTREL_HI20
, R_NDS32_PLTREL_HI20
},
2851 {BFD_RELOC_NDS32_PLTREL_LO12
, R_NDS32_PLTREL_LO12
},
2852 {BFD_RELOC_NDS32_PLT_GOTREL_HI20
, R_NDS32_PLT_GOTREL_HI20
},
2853 {BFD_RELOC_NDS32_PLT_GOTREL_LO12
, R_NDS32_PLT_GOTREL_LO12
},
2854 {BFD_RELOC_NDS32_PLT_GOTREL_LO15
, R_NDS32_PLT_GOTREL_LO15
},
2855 {BFD_RELOC_NDS32_PLT_GOTREL_LO19
, R_NDS32_PLT_GOTREL_LO19
},
2856 {BFD_RELOC_NDS32_PLT_GOTREL_LO20
, R_NDS32_PLT_GOTREL_LO20
},
2857 {BFD_RELOC_NDS32_SDA12S2_DP
, R_NDS32_SDA12S2_DP_RELA
},
2858 {BFD_RELOC_NDS32_SDA12S2_SP
, R_NDS32_SDA12S2_SP_RELA
},
2859 {BFD_RELOC_NDS32_LO12S2_DP
, R_NDS32_LO12S2_DP_RELA
},
2860 {BFD_RELOC_NDS32_LO12S2_SP
, R_NDS32_LO12S2_SP_RELA
},
2861 {BFD_RELOC_NDS32_SDA16S3
, R_NDS32_SDA16S3_RELA
},
2862 {BFD_RELOC_NDS32_SDA17S2
, R_NDS32_SDA17S2_RELA
},
2863 {BFD_RELOC_NDS32_SDA18S1
, R_NDS32_SDA18S1_RELA
},
2864 {BFD_RELOC_NDS32_SDA19S0
, R_NDS32_SDA19S0_RELA
},
2865 {BFD_RELOC_NDS32_SDA_FP7U2_RELA
, R_NDS32_SDA_FP7U2_RELA
},
2866 {BFD_RELOC_NDS32_DWARF2_OP1
, R_NDS32_DWARF2_OP1_RELA
},
2867 {BFD_RELOC_NDS32_DWARF2_OP2
, R_NDS32_DWARF2_OP2_RELA
},
2868 {BFD_RELOC_NDS32_DWARF2_LEB
, R_NDS32_DWARF2_LEB_RELA
},
2869 {BFD_RELOC_NDS32_UPDATE_TA
, R_NDS32_UPDATE_TA_RELA
},
2870 {BFD_RELOC_NDS32_GOT_SUFF
, R_NDS32_GOT_SUFF
},
2871 {BFD_RELOC_NDS32_GOTOFF_SUFF
, R_NDS32_GOTOFF_SUFF
},
2872 {BFD_RELOC_NDS32_GOT15S2
, R_NDS32_GOT15S2_RELA
},
2873 {BFD_RELOC_NDS32_GOT17S2
, R_NDS32_GOT17S2_RELA
},
2874 {BFD_RELOC_NDS32_PTR
, R_NDS32_PTR
},
2875 {BFD_RELOC_NDS32_PTR_COUNT
, R_NDS32_PTR_COUNT
},
2876 {BFD_RELOC_NDS32_PLT_GOT_SUFF
, R_NDS32_PLT_GOT_SUFF
},
2877 {BFD_RELOC_NDS32_PTR_RESOLVED
, R_NDS32_PTR_RESOLVED
},
2878 {BFD_RELOC_NDS32_RELAX_ENTRY
, R_NDS32_RELAX_ENTRY
},
2879 {BFD_RELOC_NDS32_MULCALL_SUFF
, R_NDS32_MULCALL_SUFF
},
2880 {BFD_RELOC_NDS32_PLTBLOCK
, R_NDS32_PLTBLOCK
},
2881 {BFD_RELOC_NDS32_RELAX_REGION_BEGIN
, R_NDS32_RELAX_REGION_BEGIN
},
2882 {BFD_RELOC_NDS32_RELAX_REGION_END
, R_NDS32_RELAX_REGION_END
},
2883 {BFD_RELOC_NDS32_MINUEND
, R_NDS32_MINUEND
},
2884 {BFD_RELOC_NDS32_SUBTRAHEND
, R_NDS32_SUBTRAHEND
},
2885 {BFD_RELOC_NDS32_EMPTY
, R_NDS32_EMPTY
},
2887 {BFD_RELOC_NDS32_DIFF8
, R_NDS32_DIFF8
},
2888 {BFD_RELOC_NDS32_DIFF16
, R_NDS32_DIFF16
},
2889 {BFD_RELOC_NDS32_DIFF32
, R_NDS32_DIFF32
},
2890 {BFD_RELOC_NDS32_DIFF_ULEB128
, R_NDS32_DIFF_ULEB128
},
2891 {BFD_RELOC_NDS32_25_ABS
, R_NDS32_25_ABS_RELA
},
2892 {BFD_RELOC_NDS32_DATA
, R_NDS32_DATA
},
2893 {BFD_RELOC_NDS32_TRAN
, R_NDS32_TRAN
},
2894 {BFD_RELOC_NDS32_17IFC_PCREL
, R_NDS32_17IFC_PCREL_RELA
},
2895 {BFD_RELOC_NDS32_10IFCU_PCREL
, R_NDS32_10IFCU_PCREL_RELA
},
2896 {BFD_RELOC_NDS32_TLS_LE_HI20
, R_NDS32_TLS_LE_HI20
},
2897 {BFD_RELOC_NDS32_TLS_LE_LO12
, R_NDS32_TLS_LE_LO12
},
2898 {BFD_RELOC_NDS32_TLS_LE_ADD
, R_NDS32_TLS_LE_ADD
},
2899 {BFD_RELOC_NDS32_TLS_LE_LS
, R_NDS32_TLS_LE_LS
},
2900 {BFD_RELOC_NDS32_TLS_IE_HI20
, R_NDS32_TLS_IE_HI20
},
2901 {BFD_RELOC_NDS32_TLS_IE_LO12S2
, R_NDS32_TLS_IE_LO12S2
},
2902 {BFD_RELOC_NDS32_TLS_TPOFF
, R_NDS32_TLS_TPOFF
},
2903 {BFD_RELOC_NDS32_TLS_LE_20
, R_NDS32_TLS_LE_20
},
2904 {BFD_RELOC_NDS32_TLS_LE_15S0
, R_NDS32_TLS_LE_15S0
},
2905 {BFD_RELOC_NDS32_TLS_LE_15S1
, R_NDS32_TLS_LE_15S1
},
2906 {BFD_RELOC_NDS32_TLS_LE_15S2
, R_NDS32_TLS_LE_15S2
},
2911 static reloc_howto_type
*
2912 bfd_elf32_bfd_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
2917 for (i
= 0; i
< ARRAY_SIZE (nds32_elf_howto_table
); i
++)
2918 if (nds32_elf_howto_table
[i
].name
!= NULL
2919 && strcasecmp (nds32_elf_howto_table
[i
].name
, r_name
) == 0)
2920 return &nds32_elf_howto_table
[i
];
2922 for (i
= 0; i
< ARRAY_SIZE (nds32_elf_relax_howto_table
); i
++)
2923 if (nds32_elf_relax_howto_table
[i
].name
!= NULL
2924 && strcasecmp (nds32_elf_relax_howto_table
[i
].name
, r_name
) == 0)
2925 return &nds32_elf_relax_howto_table
[i
];
2930 static reloc_howto_type
*
2931 bfd_elf32_bfd_reloc_type_table_lookup (enum elf_nds32_reloc_type code
)
2933 if (code
< R_NDS32_RELAX_ENTRY
)
2935 BFD_ASSERT (code
< ARRAY_SIZE (nds32_elf_howto_table
));
2936 return &nds32_elf_howto_table
[code
];
2940 BFD_ASSERT ((size_t) (code
- R_NDS32_RELAX_ENTRY
)
2941 < ARRAY_SIZE (nds32_elf_relax_howto_table
));
2942 return &nds32_elf_relax_howto_table
[code
- R_NDS32_RELAX_ENTRY
];
2946 static reloc_howto_type
*
2947 bfd_elf32_bfd_reloc_type_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
2948 bfd_reloc_code_real_type code
)
2952 for (i
= 0; i
< ARRAY_SIZE (nds32_reloc_map
); i
++)
2954 if (nds32_reloc_map
[i
].bfd_reloc_val
== code
)
2955 return bfd_elf32_bfd_reloc_type_table_lookup
2956 (nds32_reloc_map
[i
].elf_reloc_val
);
2962 /* Set the howto pointer for an NDS32 ELF reloc. */
2965 nds32_info_to_howto_rel (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*cache_ptr
,
2966 Elf_Internal_Rela
*dst
)
2968 enum elf_nds32_reloc_type r_type
;
2970 r_type
= ELF32_R_TYPE (dst
->r_info
);
2971 if (r_type
> R_NDS32_GNU_VTENTRY
)
2973 /* xgettext:c-format */
2974 _bfd_error_handler (_("%B: invalid NDS32 reloc number: %d"), abfd
, r_type
);
2977 cache_ptr
->howto
= bfd_elf32_bfd_reloc_type_table_lookup (r_type
);
2981 nds32_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*cache_ptr
,
2982 Elf_Internal_Rela
*dst
)
2984 BFD_ASSERT ((ELF32_R_TYPE (dst
->r_info
) == R_NDS32_NONE
)
2985 || ((ELF32_R_TYPE (dst
->r_info
) > R_NDS32_GNU_VTENTRY
)
2986 && (ELF32_R_TYPE (dst
->r_info
) < R_NDS32_max
)));
2987 cache_ptr
->howto
= bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (dst
->r_info
));
2990 /* Support for core dump NOTE sections.
2991 Reference to include/linux/elfcore.h in Linux. */
2994 nds32_elf_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
2999 switch (note
->descsz
)
3002 /* Linux/NDS32 32-bit, ABI1 */
3005 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
3008 elf_tdata (abfd
)->core
->pid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
3016 /* Linux/NDS32 32-bit */
3019 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
3022 elf_tdata (abfd
)->core
->pid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
3033 /* Make a ".reg" section. */
3034 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
3035 size
, note
->descpos
+ offset
);
3039 nds32_elf_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
3041 switch (note
->descsz
)
3046 /* __kernel_uid_t, __kernel_gid_t are short on NDS32 platform. */
3047 elf_tdata (abfd
)->core
->program
=
3048 _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
3049 elf_tdata (abfd
)->core
->command
=
3050 _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
3057 /* Note that for some reason, a spurious space is tacked
3058 onto the end of the args in some (at least one anyway)
3059 implementations, so strip it off if it exists. */
3061 char *command
= elf_tdata (abfd
)->core
->command
;
3062 int n
= strlen (command
);
3064 if (0 < n
&& command
[n
- 1] == ' ')
3065 command
[n
- 1] = '\0';
3071 /* Hook called by the linker routine which adds symbols from an object
3072 file. We must handle the special NDS32 section numbers here.
3073 We also keep watching for whether we need to create the sdata special
3077 nds32_elf_add_symbol_hook (bfd
*abfd
,
3078 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
3079 Elf_Internal_Sym
*sym
,
3080 const char **namep ATTRIBUTE_UNUSED
,
3081 flagword
*flagsp ATTRIBUTE_UNUSED
,
3082 asection
**secp
, bfd_vma
*valp
)
3084 switch (sym
->st_shndx
)
3087 /* Common symbols less than the GP size are automatically
3088 treated as SHN_MIPS_SCOMMON symbols. */
3089 if (sym
->st_size
> elf_gp_size (abfd
)
3090 || ELF_ST_TYPE (sym
->st_info
) == STT_TLS
)
3093 /* st_value is the alignemnt constraint.
3094 That might be its actual size if it is an array or structure. */
3095 switch (sym
->st_value
)
3098 *secp
= bfd_make_section_old_way (abfd
, ".scommon_b");
3101 *secp
= bfd_make_section_old_way (abfd
, ".scommon_h");
3104 *secp
= bfd_make_section_old_way (abfd
, ".scommon_w");
3107 *secp
= bfd_make_section_old_way (abfd
, ".scommon_d");
3113 (*secp
)->flags
|= SEC_IS_COMMON
;
3114 *valp
= sym
->st_size
;
3122 /* This function can figure out the best location for a base register to access
3123 data relative to this base register
3125 sda_d0: size of first DOUBLE WORD data section
3126 sda_w0: size of first WORD data section
3127 sda_h0: size of first HALF WORD data section
3128 sda_b : size of BYTE data section
3129 sda_hi: size of second HALF WORD data section
3130 sda_w1: size of second WORD data section
3131 sda_d1: size of second DOUBLE WORD data section
3133 offset (always positive) from the beginning of sda_d0 if OK
3134 a negative error value if fail
3136 these 7 sections have to be located back to back if exist
3137 a pass in 0 value for non-existing section */
3139 /* Due to the interpretation of simm15 field of load/store depending on
3140 data accessing size, the organization of base register relative data shall
3141 like the following figure
3142 -------------------------------------------
3143 | DOUBLE WORD sized data (range +/- 128K)
3144 -------------------------------------------
3145 | WORD sized data (range +/- 64K)
3146 -------------------------------------------
3147 | HALF WORD sized data (range +/- 32K)
3148 -------------------------------------------
3149 | BYTE sized data (range +/- 16K)
3150 -------------------------------------------
3151 | HALF WORD sized data (range +/- 32K)
3152 -------------------------------------------
3153 | WORD sized data (range +/- 64K)
3154 -------------------------------------------
3155 | DOUBLE WORD sized data (range +/- 128K)
3156 -------------------------------------------
3157 Its base register shall be set to access these data freely. */
3159 /* We have to figure out the SDA_BASE value, so that we can adjust the
3160 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
3161 BFD. If we can't find it, we're stuck. We cache it in the ELF
3162 target data. We don't need to adjust the symbol value for an
3163 external symbol if we are producing relocatable output. */
3165 static asection
*sda_rela_sec
= NULL
;
3167 #define SDA_SECTION_NUM 10
3169 static bfd_reloc_status_type
3170 nds32_elf_final_sda_base (bfd
*output_bfd
, struct bfd_link_info
*info
,
3171 bfd_vma
*psb
, bfd_boolean add_symbol
)
3174 struct elf_nds32_link_hash_table
*table
;
3175 struct bfd_link_hash_entry
*h
, *h2
;
3176 long unsigned int total
= 0;
3178 h
= bfd_link_hash_lookup (info
->hash
, "_SDA_BASE_", FALSE
, FALSE
, TRUE
);
3179 if (!h
|| (h
->type
!= bfd_link_hash_defined
&& h
->type
!= bfd_link_hash_defweak
))
3181 asection
*first
= NULL
, *final
= NULL
, *temp
;
3183 /* The first section must be 4-byte aligned to promise _SDA_BASE_ being
3184 4 byte-aligned. Therefore, it has to set the first section ".data"
3186 static const char sec_name
[SDA_SECTION_NUM
][10] =
3188 ".data", ".got", ".sdata_d", ".sdata_w", ".sdata_h", ".sdata_b",
3189 ".sbss_b", ".sbss_h", ".sbss_w", ".sbss_d"
3193 if (output_bfd
->sections
== NULL
)
3195 *psb
= elf_gp (output_bfd
);
3196 return bfd_reloc_ok
;
3199 /* Get the first and final section. */
3200 while (i
< sizeof (sec_name
) / sizeof (sec_name
[0]))
3202 temp
= bfd_get_section_by_name (output_bfd
, sec_name
[i
]);
3203 if (temp
&& !first
&& (temp
->size
!= 0 || temp
->rawsize
!= 0))
3205 if (temp
&& (temp
->size
!= 0 || temp
->rawsize
!= 0))
3208 /* Summarize the sections in order to check if joining .bss. */
3209 if (temp
&& temp
->size
!= 0)
3210 total
+= temp
->size
;
3211 else if (temp
&& temp
->rawsize
!= 0)
3212 total
+= temp
->rawsize
;
3217 /* Check .bss size. */
3218 temp
= bfd_get_section_by_name (output_bfd
, ".bss");
3221 if (temp
->size
!= 0)
3222 total
+= temp
->size
;
3223 else if (temp
->rawsize
!= 0)
3224 total
+= temp
->rawsize
;
3226 if (total
< 0x80000)
3228 if (!first
&& (temp
->size
!= 0 || temp
->rawsize
!= 0))
3230 if ((temp
->size
!= 0 || temp
->rawsize
!= 0))
3237 /* The middle of data region. */
3238 sda_base
= final
->vma
/ 2 + final
->rawsize
/ 2 + first
->vma
/ 2;
3240 /* Find the section sda_base located. */
3242 while (i
< sizeof (sec_name
) / sizeof (sec_name
[0]))
3244 final
= bfd_get_section_by_name (output_bfd
, sec_name
[i
]);
3245 if (final
&& (final
->size
!= 0 || final
->rawsize
!= 0)
3246 && sda_base
>= final
->vma
)
3257 /* There is not any data section in output bfd, and set _SDA_BASE_ in
3258 first output section. */
3259 first
= output_bfd
->sections
;
3260 while (first
&& first
->size
== 0 && first
->rawsize
== 0)
3261 first
= first
->next
;
3264 *psb
= elf_gp (output_bfd
);
3265 return bfd_reloc_ok
;
3267 sda_base
= first
->vma
+ first
->rawsize
;
3270 sda_base
-= first
->vma
;
3271 sda_base
= sda_base
& (~7);
3273 if (!_bfd_generic_link_add_one_symbol
3274 (info
, output_bfd
, "_SDA_BASE_", BSF_GLOBAL
| BSF_WEAK
, first
,
3275 (bfd_vma
) sda_base
, (const char *) NULL
, FALSE
,
3276 get_elf_backend_data (output_bfd
)->collect
, &h
))
3279 sda_rela_sec
= first
;
3281 table
= nds32_elf_hash_table (info
);
3282 relax_fp_as_gp
= table
->relax_fp_as_gp
;
3285 h2
= bfd_link_hash_lookup (info
->hash
, FP_BASE_NAME
,
3286 FALSE
, FALSE
, FALSE
);
3287 /* Define a weak FP_BASE_NAME here to prevent the undefined symbol.
3288 And set FP equal to SDA_BASE to do relaxation for
3289 la $fp, _FP_BASE_. */
3290 if (!_bfd_generic_link_add_one_symbol
3291 (info
, output_bfd
, FP_BASE_NAME
, BSF_GLOBAL
| BSF_WEAK
,
3292 first
, (bfd_vma
) sda_base
, (const char *) NULL
,
3293 FALSE
, get_elf_backend_data (output_bfd
)->collect
, &h2
))
3298 if (add_symbol
== TRUE
)
3303 elf_gp (output_bfd
) = (h
->u
.def
.value
3304 + h
->u
.def
.section
->output_section
->vma
3305 + h
->u
.def
.section
->output_offset
);
3309 _bfd_error_handler (_("error: Can't find symbol: _SDA_BASE_."));
3310 return bfd_reloc_dangerous
;
3314 *psb
= h
->u
.def
.value
+ h
->u
.def
.section
->output_section
->vma
3315 + h
->u
.def
.section
->output_offset
;
3316 return bfd_reloc_ok
;
3320 /* Return size of a PLT entry. */
3321 #define elf_nds32_sizeof_plt(info) PLT_ENTRY_SIZE
3324 /* Create an entry in an nds32 ELF linker hash table. */
3326 static struct bfd_hash_entry
*
3327 nds32_elf_link_hash_newfunc (struct bfd_hash_entry
*entry
,
3328 struct bfd_hash_table
*table
,
3331 struct elf_nds32_link_hash_entry
*ret
;
3333 ret
= (struct elf_nds32_link_hash_entry
*) entry
;
3335 /* Allocate the structure if it has not already been allocated by a
3338 ret
= (struct elf_nds32_link_hash_entry
*)
3339 bfd_hash_allocate (table
, sizeof (struct elf_nds32_link_hash_entry
));
3342 return (struct bfd_hash_entry
*) ret
;
3344 /* Call the allocation method of the superclass. */
3345 ret
= (struct elf_nds32_link_hash_entry
*)
3346 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
, table
, string
);
3350 struct elf_nds32_link_hash_entry
*eh
;
3352 eh
= (struct elf_nds32_link_hash_entry
*) ret
;
3353 eh
->dyn_relocs
= NULL
;
3354 eh
->tls_type
= GOT_UNKNOWN
;
3357 return (struct bfd_hash_entry
*) ret
;
3360 /* Create an nds32 ELF linker hash table. */
3362 static struct bfd_link_hash_table
*
3363 nds32_elf_link_hash_table_create (bfd
*abfd
)
3365 struct elf_nds32_link_hash_table
*ret
;
3367 bfd_size_type amt
= sizeof (struct elf_nds32_link_hash_table
);
3369 ret
= (struct elf_nds32_link_hash_table
*) bfd_zmalloc (amt
);
3374 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
3375 nds32_elf_link_hash_newfunc
,
3376 sizeof (struct elf_nds32_link_hash_entry
),
3384 ret
->sgotplt
= NULL
;
3385 ret
->srelgot
= NULL
;
3387 ret
->srelplt
= NULL
;
3388 ret
->sdynbss
= NULL
;
3389 ret
->srelbss
= NULL
;
3390 ret
->sym_ld_script
= NULL
;
3391 ret
->ex9_export_file
= NULL
;
3392 ret
->ex9_import_file
= NULL
;
3394 return &ret
->root
.root
;
3397 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
3398 shortcuts to them in our hash table. */
3401 create_got_section (bfd
*dynobj
, struct bfd_link_info
*info
)
3403 struct elf_nds32_link_hash_table
*htab
;
3405 if (!_bfd_elf_create_got_section (dynobj
, info
))
3408 htab
= nds32_elf_hash_table (info
);
3409 htab
->sgot
= bfd_get_section_by_name (dynobj
, ".got");
3410 htab
->sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
3411 if (!htab
->sgot
|| !htab
->sgotplt
)
3414 /* _bfd_elf_create_got_section will create it for us. */
3415 htab
->srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
3416 if (htab
->srelgot
== NULL
3417 || !bfd_set_section_flags (dynobj
, htab
->srelgot
,
3418 (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
3419 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
3421 || !bfd_set_section_alignment (dynobj
, htab
->srelgot
, 2))
3427 /* Create dynamic sections when linking against a dynamic object. */
3430 nds32_elf_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
3432 struct elf_nds32_link_hash_table
*htab
;
3433 flagword flags
, pltflags
;
3434 register asection
*s
;
3435 const struct elf_backend_data
*bed
;
3436 int ptralign
= 2; /* 32-bit */
3438 bed
= get_elf_backend_data (abfd
);
3440 htab
= nds32_elf_hash_table (info
);
3442 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3443 .rel[a].bss sections. */
3445 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
3446 | SEC_LINKER_CREATED
);
3449 pltflags
|= SEC_CODE
;
3450 if (bed
->plt_not_loaded
)
3451 pltflags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
3452 if (bed
->plt_readonly
)
3453 pltflags
|= SEC_READONLY
;
3455 s
= bfd_make_section (abfd
, ".plt");
3458 || !bfd_set_section_flags (abfd
, s
, pltflags
)
3459 || !bfd_set_section_alignment (abfd
, s
, bed
->plt_alignment
))
3462 if (bed
->want_plt_sym
)
3464 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3466 struct bfd_link_hash_entry
*bh
= NULL
;
3467 struct elf_link_hash_entry
*h
;
3469 if (!(_bfd_generic_link_add_one_symbol
3470 (info
, abfd
, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL
, s
,
3471 (bfd_vma
) 0, (const char *) NULL
, FALSE
,
3472 get_elf_backend_data (abfd
)->collect
, &bh
)))
3475 h
= (struct elf_link_hash_entry
*) bh
;
3477 h
->type
= STT_OBJECT
;
3479 if (bfd_link_pic (info
) && !bfd_elf_link_record_dynamic_symbol (info
, h
))
3483 s
= bfd_make_section (abfd
,
3484 bed
->default_use_rela_p
? ".rela.plt" : ".rel.plt");
3487 || !bfd_set_section_flags (abfd
, s
, flags
| SEC_READONLY
)
3488 || !bfd_set_section_alignment (abfd
, s
, ptralign
))
3491 if (htab
->sgot
== NULL
&& !create_got_section (abfd
, info
))
3495 const char *secname
;
3500 for (sec
= abfd
->sections
; sec
; sec
= sec
->next
)
3502 secflags
= bfd_get_section_flags (abfd
, sec
);
3503 if ((secflags
& (SEC_DATA
| SEC_LINKER_CREATED
))
3504 || ((secflags
& SEC_HAS_CONTENTS
) != SEC_HAS_CONTENTS
))
3506 secname
= bfd_get_section_name (abfd
, sec
);
3507 relname
= (char *) bfd_malloc ((bfd_size_type
) strlen (secname
) + 6);
3508 strcpy (relname
, ".rela");
3509 strcat (relname
, secname
);
3510 if (bfd_get_section_by_name (abfd
, secname
))
3512 s
= bfd_make_section (abfd
, relname
);
3514 || !bfd_set_section_flags (abfd
, s
, flags
| SEC_READONLY
)
3515 || !bfd_set_section_alignment (abfd
, s
, ptralign
))
3520 if (bed
->want_dynbss
)
3522 /* The .dynbss section is a place to put symbols which are defined
3523 by dynamic objects, are referenced by regular objects, and are
3524 not functions. We must allocate space for them in the process
3525 image and use a R_*_COPY reloc to tell the dynamic linker to
3526 initialize them at run time. The linker script puts the .dynbss
3527 section into the .bss section of the final image. */
3528 s
= bfd_make_section (abfd
, ".dynbss");
3531 || !bfd_set_section_flags (abfd
, s
, SEC_ALLOC
| SEC_LINKER_CREATED
))
3533 /* The .rel[a].bss section holds copy relocs. This section is not
3534 normally needed. We need to create it here, though, so that the
3535 linker will map it to an output section. We can't just create it
3536 only if we need it, because we will not know whether we need it
3537 until we have seen all the input files, and the first time the
3538 main linker code calls BFD after examining all the input files
3539 (size_dynamic_sections) the input sections have already been
3540 mapped to the output sections. If the section turns out not to
3541 be needed, we can discard it later. We will never need this
3542 section when generating a shared object, since they do not use
3544 if (!bfd_link_pic (info
))
3546 s
= bfd_make_section (abfd
, (bed
->default_use_rela_p
3547 ? ".rela.bss" : ".rel.bss"));
3550 || !bfd_set_section_flags (abfd
, s
, flags
| SEC_READONLY
)
3551 || !bfd_set_section_alignment (abfd
, s
, ptralign
))
3559 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3561 nds32_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
3562 struct elf_link_hash_entry
*dir
,
3563 struct elf_link_hash_entry
*ind
)
3565 struct elf_nds32_link_hash_entry
*edir
, *eind
;
3567 edir
= (struct elf_nds32_link_hash_entry
*) dir
;
3568 eind
= (struct elf_nds32_link_hash_entry
*) ind
;
3570 if (eind
->dyn_relocs
!= NULL
)
3572 if (edir
->dyn_relocs
!= NULL
)
3574 struct elf_nds32_dyn_relocs
**pp
;
3575 struct elf_nds32_dyn_relocs
*p
;
3577 if (ind
->root
.type
== bfd_link_hash_indirect
)
3580 /* Add reloc counts against the weak sym to the strong sym
3581 list. Merge any entries against the same section. */
3582 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
;)
3584 struct elf_nds32_dyn_relocs
*q
;
3586 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
3587 if (q
->sec
== p
->sec
)
3589 q
->pc_count
+= p
->pc_count
;
3590 q
->count
+= p
->count
;
3597 *pp
= edir
->dyn_relocs
;
3600 edir
->dyn_relocs
= eind
->dyn_relocs
;
3601 eind
->dyn_relocs
= NULL
;
3604 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
3608 /* Adjust a symbol defined by a dynamic object and referenced by a
3609 regular object. The current definition is in some section of the
3610 dynamic object, but we're not including those sections. We have to
3611 change the definition to something the rest of the link can
3615 nds32_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
3616 struct elf_link_hash_entry
*h
)
3618 struct elf_nds32_link_hash_table
*htab
;
3619 struct elf_nds32_link_hash_entry
*eh
;
3620 struct elf_nds32_dyn_relocs
*p
;
3623 unsigned int power_of_two
;
3625 dynobj
= elf_hash_table (info
)->dynobj
;
3627 /* Make sure we know what is going on here. */
3628 BFD_ASSERT (dynobj
!= NULL
3630 || h
->u
.weakdef
!= NULL
3631 || (h
->def_dynamic
&& h
->ref_regular
&& !h
->def_regular
)));
3634 /* If this is a function, put it in the procedure linkage table. We
3635 will fill in the contents of the procedure linkage table later,
3636 when we know the address of the .got section. */
3637 if (h
->type
== STT_FUNC
|| h
->needs_plt
)
3639 if (!bfd_link_pic (info
)
3642 && h
->root
.type
!= bfd_link_hash_undefweak
3643 && h
->root
.type
!= bfd_link_hash_undefined
)
3645 /* This case can occur if we saw a PLT reloc in an input
3646 file, but the symbol was never referred to by a dynamic
3647 object. In such a case, we don't actually need to build
3648 a procedure linkage table, and we can just do a PCREL
3650 h
->plt
.offset
= (bfd_vma
) - 1;
3657 h
->plt
.offset
= (bfd_vma
) - 1;
3659 /* If this is a weak symbol, and there is a real definition, the
3660 processor independent code will have arranged for us to see the
3661 real definition first, and we can just use the same value. */
3662 if (h
->u
.weakdef
!= NULL
)
3664 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
3665 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
3666 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
3667 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
3671 /* This is a reference to a symbol defined by a dynamic object which
3672 is not a function. */
3674 /* If we are creating a shared library, we must presume that the
3675 only references to the symbol are via the global offset table.
3676 For such cases we need not do anything here; the relocations will
3677 be handled correctly by relocate_section. */
3678 if (bfd_link_pic (info
))
3681 /* If there are no references to this symbol that do not use the
3682 GOT, we don't need to generate a copy reloc. */
3683 if (!h
->non_got_ref
)
3686 /* If -z nocopyreloc was given, we won't generate them either. */
3687 if (info
->nocopyreloc
)
3693 eh
= (struct elf_nds32_link_hash_entry
*) h
;
3694 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
3696 s
= p
->sec
->output_section
;
3697 if (s
!= NULL
&& (s
->flags
& (SEC_READONLY
| SEC_HAS_CONTENTS
)) != 0)
3701 /* If we didn't find any dynamic relocs in sections which needs the
3702 copy reloc, then we'll be keeping the dynamic relocs and avoiding
3710 /* We must allocate the symbol in our .dynbss section, which will
3711 become part of the .bss section of the executable. There will be
3712 an entry for this symbol in the .dynsym section. The dynamic
3713 object will contain position independent code, so all references
3714 from the dynamic object to this symbol will go through the global
3715 offset table. The dynamic linker will use the .dynsym entry to
3716 determine the address it must put in the global offset table, so
3717 both the dynamic object and the regular object will refer to the
3718 same memory location for the variable. */
3720 htab
= nds32_elf_hash_table (info
);
3722 BFD_ASSERT (s
!= NULL
);
3724 /* We must generate a R_NDS32_COPY reloc to tell the dynamic linker
3725 to copy the initial value out of the dynamic object and into the
3726 runtime process image. We need to remember the offset into the
3727 .rela.bss section we are going to use. */
3728 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
3732 srel
= htab
->srelbss
;
3733 BFD_ASSERT (srel
!= NULL
);
3734 srel
->size
+= sizeof (Elf32_External_Rela
);
3738 /* We need to figure out the alignment required for this symbol. I
3739 have no idea how ELF linkers handle this. */
3740 power_of_two
= bfd_log2 (h
->size
);
3741 if (power_of_two
> 3)
3744 /* Apply the required alignment. */
3745 s
->size
= BFD_ALIGN (s
->size
, (bfd_size_type
) (1 << power_of_two
));
3746 if (power_of_two
> bfd_get_section_alignment (dynobj
, s
))
3748 if (!bfd_set_section_alignment (dynobj
, s
, power_of_two
))
3752 /* Define the symbol as being at this point in the section. */
3753 h
->root
.u
.def
.section
= s
;
3754 h
->root
.u
.def
.value
= s
->size
;
3756 /* Increment the section size to make room for the symbol. */
3762 /* Allocate space in .plt, .got and associated reloc sections for
3766 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
3768 struct bfd_link_info
*info
;
3769 struct elf_nds32_link_hash_table
*htab
;
3770 struct elf_nds32_link_hash_entry
*eh
;
3771 struct elf_nds32_dyn_relocs
*p
;
3773 if (h
->root
.type
== bfd_link_hash_indirect
)
3776 if (h
->root
.type
== bfd_link_hash_warning
)
3777 /* When warning symbols are created, they **replace** the "real"
3778 entry in the hash table, thus we never get to see the real
3779 symbol in a hash traversal. So look at it now. */
3780 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3782 info
= (struct bfd_link_info
*) inf
;
3783 htab
= nds32_elf_hash_table (info
);
3785 eh
= (struct elf_nds32_link_hash_entry
*) h
;
3787 if (htab
->root
.dynamic_sections_created
&& h
->plt
.refcount
> 0)
3789 /* Make sure this symbol is output as a dynamic symbol.
3790 Undefined weak syms won't yet be marked as dynamic. */
3791 if (h
->dynindx
== -1 && !h
->forced_local
)
3793 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
3797 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info
), h
))
3799 asection
*s
= htab
->splt
;
3801 /* If this is the first .plt entry, make room for the special
3804 s
->size
+= PLT_ENTRY_SIZE
;
3806 h
->plt
.offset
= s
->size
;
3808 /* If this symbol is not defined in a regular file, and we are
3809 not generating a shared library, then set the symbol to this
3810 location in the .plt. This is required to make function
3811 pointers compare as equal between the normal executable and
3812 the shared library. */
3813 if (!bfd_link_pic (info
) && !h
->def_regular
)
3815 h
->root
.u
.def
.section
= s
;
3816 h
->root
.u
.def
.value
= h
->plt
.offset
;
3819 /* Make room for this entry. */
3820 s
->size
+= PLT_ENTRY_SIZE
;
3822 /* We also need to make an entry in the .got.plt section, which
3823 will be placed in the .got section by the linker script. */
3824 htab
->sgotplt
->size
+= 4;
3826 /* We also need to make an entry in the .rel.plt section. */
3827 htab
->srelplt
->size
+= sizeof (Elf32_External_Rela
);
3831 h
->plt
.offset
= (bfd_vma
) - 1;
3837 h
->plt
.offset
= (bfd_vma
) - 1;
3841 if (h
->got
.refcount
> 0)
3845 int tls_type
= elf32_nds32_hash_entry (h
)->tls_type
;
3847 /* Make sure this symbol is output as a dynamic symbol.
3848 Undefined weak syms won't yet be marked as dynamic. */
3849 if (h
->dynindx
== -1 && !h
->forced_local
)
3851 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
3856 h
->got
.offset
= s
->size
;
3858 if (tls_type
== GOT_UNKNOWN
)
3860 else if (tls_type
== GOT_NORMAL
3861 || tls_type
== GOT_TLS_IE
)
3862 /* Need a GOT slot. */
3865 dyn
= htab
->root
.dynamic_sections_created
;
3866 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
))
3867 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
3870 h
->got
.offset
= (bfd_vma
) - 1;
3872 if (eh
->dyn_relocs
== NULL
)
3875 /* In the shared -Bsymbolic case, discard space allocated for
3876 dynamic pc-relative relocs against symbols which turn out to be
3877 defined in regular objects. For the normal shared case, discard
3878 space for pc-relative relocs that have become local due to symbol
3879 visibility changes. */
3881 if (bfd_link_pic (info
))
3883 if (h
->def_regular
&& (h
->forced_local
|| info
->symbolic
))
3885 struct elf_nds32_dyn_relocs
**pp
;
3887 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
;)
3889 p
->count
-= p
->pc_count
;
3900 /* For the non-shared case, discard space for relocs against
3901 symbols which turn out to need copy relocs or are not dynamic. */
3906 || (htab
->root
.dynamic_sections_created
3907 && (h
->root
.type
== bfd_link_hash_undefweak
3908 || h
->root
.type
== bfd_link_hash_undefined
))))
3910 /* Make sure this symbol is output as a dynamic symbol.
3911 Undefined weak syms won't yet be marked as dynamic. */
3912 if (h
->dynindx
== -1 && !h
->forced_local
)
3914 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
3918 /* If that succeeded, we know we'll be keeping all the
3920 if (h
->dynindx
!= -1)
3924 eh
->dyn_relocs
= NULL
;
3929 /* Finally, allocate space. */
3930 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
3932 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
3933 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
3939 /* Find any dynamic relocs that apply to read-only sections. */
3942 readonly_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
3944 struct elf_nds32_link_hash_entry
*eh
;
3945 struct elf_nds32_dyn_relocs
*p
;
3947 if (h
->root
.type
== bfd_link_hash_warning
)
3948 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3950 eh
= (struct elf_nds32_link_hash_entry
*) h
;
3951 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
3953 asection
*s
= p
->sec
->output_section
;
3955 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
3957 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
3959 info
->flags
|= DF_TEXTREL
;
3961 /* Not an error, just cut short the traversal. */
3968 /* Set the sizes of the dynamic sections. */
3971 nds32_elf_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
3972 struct bfd_link_info
*info
)
3974 struct elf_nds32_link_hash_table
*htab
;
3980 htab
= nds32_elf_hash_table (info
);
3981 dynobj
= htab
->root
.dynobj
;
3982 BFD_ASSERT (dynobj
!= NULL
);
3984 if (htab
->root
.dynamic_sections_created
)
3986 /* Set the contents of the .interp section to the interpreter. */
3987 if (!bfd_link_pic (info
) && !info
->nointerp
)
3989 s
= bfd_get_section_by_name (dynobj
, ".interp");
3990 BFD_ASSERT (s
!= NULL
);
3991 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
3992 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
3996 /* Set up .got offsets for local syms, and space for local dynamic
3998 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
4000 bfd_signed_vma
*local_got
;
4001 bfd_signed_vma
*end_local_got
;
4002 bfd_size_type locsymcount
;
4003 Elf_Internal_Shdr
*symtab_hdr
;
4006 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
4009 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
4011 struct elf_nds32_dyn_relocs
*p
;
4013 for (p
= ((struct elf_nds32_dyn_relocs
*)
4014 elf_section_data (s
)->local_dynrel
);
4015 p
!= NULL
; p
= p
->next
)
4017 if (!bfd_is_abs_section (p
->sec
)
4018 && bfd_is_abs_section (p
->sec
->output_section
))
4020 /* Input section has been discarded, either because
4021 it is a copy of a linkonce section or due to
4022 linker script /DISCARD/, so we'll be discarding
4025 else if (p
->count
!= 0)
4027 srel
= elf_section_data (p
->sec
)->sreloc
;
4028 srel
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
4029 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
4030 info
->flags
|= DF_TEXTREL
;
4035 local_got
= elf_local_got_refcounts (ibfd
);
4039 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4040 locsymcount
= symtab_hdr
->sh_info
;
4041 end_local_got
= local_got
+ locsymcount
;
4043 srel
= htab
->srelgot
;
4044 for (; local_got
< end_local_got
; ++local_got
)
4048 *local_got
= s
->size
;
4050 if (bfd_link_pic (info
))
4051 srel
->size
+= sizeof (Elf32_External_Rela
);
4054 *local_got
= (bfd_vma
) - 1;
4058 /* Allocate global sym .plt and .got entries, and space for global
4059 sym dynamic relocs. */
4060 elf_link_hash_traverse (&htab
->root
, allocate_dynrelocs
, (void *) info
);
4062 /* We now have determined the sizes of the various dynamic sections.
4063 Allocate memory for them. */
4065 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
4067 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
4070 if (s
== htab
->splt
)
4072 /* Strip this section if we don't need it; see the
4075 else if (s
== htab
->sgot
)
4077 got_size
+= s
->size
;
4079 else if (s
== htab
->sgotplt
)
4081 got_size
+= s
->size
;
4083 else if (strncmp (bfd_get_section_name (dynobj
, s
), ".rela", 5) == 0)
4085 if (s
->size
!= 0 && s
!= htab
->srelplt
)
4088 /* We use the reloc_count field as a counter if we need
4089 to copy relocs into the output file. */
4094 /* It's not one of our sections, so don't allocate space. */
4100 /* If we don't need this section, strip it from the
4101 output file. This is mostly to handle .rela.bss and
4102 .rela.plt. We must create both sections in
4103 create_dynamic_sections, because they must be created
4104 before the linker maps input sections to output
4105 sections. The linker does that before
4106 adjust_dynamic_symbol is called, and it is that
4107 function which decides whether anything needs to go
4108 into these sections. */
4109 s
->flags
|= SEC_EXCLUDE
;
4113 /* Allocate memory for the section contents. We use bfd_zalloc
4114 here in case unused entries are not reclaimed before the
4115 section's contents are written out. This should not happen,
4116 but this way if it does, we get a R_NDS32_NONE reloc instead
4118 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
4119 if (s
->contents
== NULL
)
4124 if (htab
->root
.dynamic_sections_created
)
4126 /* Add some entries to the .dynamic section. We fill in the
4127 values later, in nds32_elf_finish_dynamic_sections, but we
4128 must add the entries now so that we get the correct size for
4129 the .dynamic section. The DT_DEBUG entry is filled in by the
4130 dynamic linker and used by the debugger. */
4131 #define add_dynamic_entry(TAG, VAL) \
4132 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
4134 if (!bfd_link_pic (info
))
4136 if (!add_dynamic_entry (DT_DEBUG
, 0))
4140 if (htab
->splt
->size
!= 0)
4142 if (!add_dynamic_entry (DT_PLTGOT
, 0)
4143 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
4144 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
4145 || !add_dynamic_entry (DT_JMPREL
, 0))
4151 if (!add_dynamic_entry (DT_RELA
, 0)
4152 || !add_dynamic_entry (DT_RELASZ
, 0)
4153 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
4156 /* If any dynamic relocs apply to a read-only section,
4157 then we need a DT_TEXTREL entry. */
4158 if ((info
->flags
& DF_TEXTREL
) == 0)
4159 elf_link_hash_traverse (&htab
->root
, readonly_dynrelocs
,
4162 if ((info
->flags
& DF_TEXTREL
) != 0)
4164 if (!add_dynamic_entry (DT_TEXTREL
, 0))
4169 #undef add_dynamic_entry
4174 static bfd_reloc_status_type
4175 nds32_relocate_contents (reloc_howto_type
*howto
, bfd
*input_bfd
,
4176 bfd_vma relocation
, bfd_byte
*location
)
4180 bfd_reloc_status_type flag
;
4181 unsigned int rightshift
= howto
->rightshift
;
4182 unsigned int bitpos
= howto
->bitpos
;
4184 /* If the size is negative, negate RELOCATION. This isn't very
4186 if (howto
->size
< 0)
4187 relocation
= -relocation
;
4189 /* Get the value we are going to relocate. */
4190 size
= bfd_get_reloc_size (howto
);
4197 return bfd_reloc_ok
;
4199 x
= bfd_getb16 (location
);
4202 x
= bfd_getb32 (location
);
4206 /* Check for overflow. FIXME: We may drop bits during the addition
4207 which we don't check for. We must either check at every single
4208 operation, which would be tedious, or we must do the computations
4209 in a type larger than bfd_vma, which would be inefficient. */
4210 flag
= bfd_reloc_ok
;
4211 if (howto
->complain_on_overflow
!= complain_overflow_dont
)
4213 bfd_vma addrmask
, fieldmask
, signmask
, ss
;
4216 /* Get the values to be added together. For signed and unsigned
4217 relocations, we assume that all values should be truncated to
4218 the size of an address. For bitfields, all the bits matter.
4219 See also bfd_check_overflow. */
4220 fieldmask
= N_ONES (howto
->bitsize
);
4221 signmask
= ~fieldmask
;
4222 addrmask
= N_ONES (bfd_arch_bits_per_address (input_bfd
)) | fieldmask
;
4223 a
= (relocation
& addrmask
) >> rightshift
;
4224 b
= (x
& howto
->src_mask
& addrmask
) >> bitpos
;
4226 switch (howto
->complain_on_overflow
)
4228 case complain_overflow_signed
:
4229 /* If any sign bits are set, all sign bits must be set.
4230 That is, A must be a valid negative address after
4232 signmask
= ~(fieldmask
>> 1);
4235 case complain_overflow_bitfield
:
4236 /* Much like the signed check, but for a field one bit
4237 wider. We allow a bitfield to represent numbers in the
4238 range -2**n to 2**n-1, where n is the number of bits in the
4239 field. Note that when bfd_vma is 32 bits, a 32-bit reloc
4240 can't overflow, which is exactly what we want. */
4242 if (ss
!= 0 && ss
!= ((addrmask
>> rightshift
) & signmask
))
4243 flag
= bfd_reloc_overflow
;
4245 /* We only need this next bit of code if the sign bit of B
4246 is below the sign bit of A. This would only happen if
4247 SRC_MASK had fewer bits than BITSIZE. Note that if
4248 SRC_MASK has more bits than BITSIZE, we can get into
4249 trouble; we would need to verify that B is in range, as
4250 we do for A above. */
4251 ss
= ((~howto
->src_mask
) >> 1) & howto
->src_mask
;
4254 /* Set all the bits above the sign bit. */
4257 /* Now we can do the addition. */
4260 /* See if the result has the correct sign. Bits above the
4261 sign bit are junk now; ignore them. If the sum is
4262 positive, make sure we did not have all negative inputs;
4263 if the sum is negative, make sure we did not have all
4264 positive inputs. The test below looks only at the sign
4265 bits, and it really just
4266 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
4268 We mask with addrmask here to explicitly allow an address
4269 wrap-around. The Linux kernel relies on it, and it is
4270 the only way to write assembler code which can run when
4271 loaded at a location 0x80000000 away from the location at
4272 which it is linked. */
4273 if (((~(a
^ b
)) & (a
^ sum
)) & signmask
& addrmask
)
4274 flag
= bfd_reloc_overflow
;
4278 case complain_overflow_unsigned
:
4279 /* Checking for an unsigned overflow is relatively easy:
4280 trim the addresses and add, and trim the result as well.
4281 Overflow is normally indicated when the result does not
4282 fit in the field. However, we also need to consider the
4283 case when, e.g., fieldmask is 0x7fffffff or smaller, an
4284 input is 0x80000000, and bfd_vma is only 32 bits; then we
4285 will get sum == 0, but there is an overflow, since the
4286 inputs did not fit in the field. Instead of doing a
4287 separate test, we can check for this by or-ing in the
4288 operands when testing for the sum overflowing its final
4290 sum
= (a
+ b
) & addrmask
;
4291 if ((a
| b
| sum
) & signmask
)
4292 flag
= bfd_reloc_overflow
;
4300 /* Put RELOCATION in the right bits. */
4301 relocation
>>= (bfd_vma
) rightshift
;
4302 relocation
<<= (bfd_vma
) bitpos
;
4304 /* Add RELOCATION to the right bits of X. */
4306 Because the relaxation may generate duplicate relocation at one address,
4307 an addition to immediate in the instruction may cause the relocation added
4309 This bug should be fixed in assembler, but a check is also needed here. */
4310 if (howto
->partial_inplace
)
4311 x
= ((x
& ~howto
->dst_mask
)
4312 | (((x
& howto
->src_mask
) + relocation
) & howto
->dst_mask
));
4314 x
= ((x
& ~howto
->dst_mask
) | ((relocation
) & howto
->dst_mask
));
4317 /* Put the relocated value back in the object file. */
4327 bfd_putb16 (x
, location
);
4330 bfd_putb32 (x
, location
);
4337 static bfd_reloc_status_type
4338 nds32_elf_final_link_relocate (reloc_howto_type
*howto
, bfd
*input_bfd
,
4339 asection
*input_section
, bfd_byte
*contents
,
4340 bfd_vma address
, bfd_vma value
, bfd_vma addend
)
4344 /* Sanity check the address. */
4345 if (address
> bfd_get_section_limit (input_bfd
, input_section
))
4346 return bfd_reloc_outofrange
;
4348 /* This function assumes that we are dealing with a basic relocation
4349 against a symbol. We want to compute the value of the symbol to
4350 relocate to. This is just VALUE, the value of the symbol, plus
4351 ADDEND, any addend associated with the reloc. */
4352 relocation
= value
+ addend
;
4354 /* If the relocation is PC relative, we want to set RELOCATION to
4355 the distance between the symbol (currently in RELOCATION) and the
4356 location we are relocating. Some targets (e.g., i386-aout)
4357 arrange for the contents of the section to be the negative of the
4358 offset of the location within the section; for such targets
4359 pcrel_offset is FALSE. Other targets (e.g., m88kbcs or ELF)
4360 simply leave the contents of the section as zero; for such
4361 targets pcrel_offset is TRUE. If pcrel_offset is FALSE we do not
4362 need to subtract out the offset of the location within the
4363 section (which is just ADDRESS). */
4364 if (howto
->pc_relative
)
4366 relocation
-= (input_section
->output_section
->vma
4367 + input_section
->output_offset
);
4368 if (howto
->pcrel_offset
)
4369 relocation
-= address
;
4372 return nds32_relocate_contents (howto
, input_bfd
, relocation
,
4373 contents
+ address
);
4377 nds32_elf_output_symbol_hook (struct bfd_link_info
*info
,
4379 Elf_Internal_Sym
*elfsym ATTRIBUTE_UNUSED
,
4380 asection
*input_sec
,
4381 struct elf_link_hash_entry
*h ATTRIBUTE_UNUSED
)
4384 FILE *sym_ld_script
= NULL
;
4385 struct elf_nds32_link_hash_table
*table
;
4387 table
= nds32_elf_hash_table (info
);
4388 sym_ld_script
= table
->sym_ld_script
;
4392 if (!h
|| !name
|| *name
== '\0')
4395 if (input_sec
->flags
& SEC_EXCLUDE
)
4398 if (!check_start_export_sym
)
4400 fprintf (sym_ld_script
, "SECTIONS\n{\n");
4401 check_start_export_sym
= 1;
4404 if (h
->root
.type
== bfd_link_hash_defined
4405 || h
->root
.type
== bfd_link_hash_defweak
)
4407 if (!h
->root
.u
.def
.section
->output_section
)
4410 if (bfd_is_const_section (input_sec
))
4411 source
= input_sec
->name
;
4413 source
= input_sec
->owner
->filename
;
4415 fprintf (sym_ld_script
, "\t%s = 0x%08lx;\t /* %s */\n",
4416 h
->root
.root
.string
,
4417 (long) (h
->root
.u
.def
.value
4418 + h
->root
.u
.def
.section
->output_section
->vma
4419 + h
->root
.u
.def
.section
->output_offset
), source
);
4425 /* Relocate an NDS32/D ELF section.
4426 There is some attempt to make this function usable for many architectures,
4427 both for RELA and REL type relocs, if only to serve as a learning tool.
4429 The RELOCATE_SECTION function is called by the new ELF backend linker
4430 to handle the relocations for a section.
4432 The relocs are always passed as Rela structures; if the section
4433 actually uses Rel structures, the r_addend field will always be
4436 This function is responsible for adjust the section contents as
4437 necessary, and (if using Rela relocs and generating a
4438 relocatable output file) adjusting the reloc addend as
4441 This function does not have to worry about setting the reloc
4442 address or the reloc symbol index.
4444 LOCAL_SYMS is a pointer to the swapped in local symbols.
4446 LOCAL_SECTIONS is an array giving the section in the input file
4447 corresponding to the st_shndx field of each local symbol.
4449 The global hash table entry for the global symbols can be found
4450 via elf_sym_hashes (input_bfd).
4452 When generating relocatable output, this function must handle
4453 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
4454 going to be the section symbol corresponding to the output
4455 section, which means that the addend must be adjusted
4459 dtpoff_base (struct bfd_link_info
*info
)
4461 /* If tls_sec is NULL, we should have signalled an error already. */
4462 if (elf_hash_table (info
)->tls_sec
== NULL
)
4464 return elf_hash_table (info
)->tls_sec
->vma
;
4468 nds32_elf_relocate_section (bfd
* output_bfd ATTRIBUTE_UNUSED
,
4469 struct bfd_link_info
* info
,
4471 asection
* input_section
,
4472 bfd_byte
* contents
,
4473 Elf_Internal_Rela
* relocs
,
4474 Elf_Internal_Sym
* local_syms
,
4475 asection
** local_sections
)
4477 Elf_Internal_Shdr
*symtab_hdr
;
4478 struct elf_link_hash_entry
**sym_hashes
;
4479 Elf_Internal_Rela
*rel
, *relend
;
4480 bfd_boolean ret
= TRUE
; /* Assume success. */
4482 bfd_reloc_status_type r
;
4483 const char *errmsg
= NULL
;
4485 struct elf_nds32_link_hash_table
*htab
;
4487 bfd_vma
*local_got_offsets
;
4488 asection
*sgot
, *splt
, *sreloc
;
4489 bfd_vma high_address
;
4490 struct elf_nds32_link_hash_table
*table
;
4491 int eliminate_gc_relocs
;
4492 bfd_vma fpbase_addr
;
4494 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
4495 sym_hashes
= elf_sym_hashes (input_bfd
);
4496 htab
= nds32_elf_hash_table (info
);
4497 high_address
= bfd_get_section_limit (input_bfd
, input_section
);
4499 dynobj
= htab
->root
.dynobj
;
4500 local_got_offsets
= elf_local_got_offsets (input_bfd
);
4507 relend
= relocs
+ input_section
->reloc_count
;
4509 table
= nds32_elf_hash_table (info
);
4510 eliminate_gc_relocs
= table
->eliminate_gc_relocs
;
4511 /* By this time, we can adjust the value of _SDA_BASE_. */
4512 if ((!bfd_link_relocatable (info
)))
4514 is_SDA_BASE_set
= 1;
4515 r
= nds32_elf_final_sda_base (output_bfd
, info
, &gp
, TRUE
);
4516 if (r
!= bfd_reloc_ok
)
4520 if (is_ITB_BASE_set
== 0)
4522 /* Set the _ITB_BASE_. */
4523 if (!nds32_elf_ex9_itb_base (info
))
4525 _bfd_error_handler (_("%B: error: Cannot set _ITB_BASE_"),
4527 bfd_set_error (bfd_error_bad_value
);
4531 if (table
->target_optimize
& NDS32_RELAX_JUMP_IFC_ON
)
4532 if (!nds32_elf_ifc_reloc ())
4533 _bfd_error_handler (_("error: IFC relocation error."));
4535 /* Relocation for .ex9.itable. */
4536 if (table
->target_optimize
& NDS32_RELAX_EX9_ON
4537 || (table
->ex9_import_file
&& table
->update_ex9_table
))
4538 nds32_elf_ex9_reloc_jmp (info
);
4540 /* Use gp as fp to prevent truncated fit. Because in relaxation time
4541 the fp value is set as gp, and it has be reverted for instruction
4543 fpbase_addr
= elf_gp (output_bfd
);
4545 for (rel
= relocs
; rel
< relend
; rel
++)
4547 enum elf_nds32_reloc_type r_type
;
4548 reloc_howto_type
*howto
= NULL
;
4549 unsigned long r_symndx
;
4550 struct elf_link_hash_entry
*h
= NULL
;
4551 Elf_Internal_Sym
*sym
= NULL
;
4555 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
4556 ensure it's zero (we use REL relocs, not RELA). Therefore this
4557 should be assigning zero to `addend', but for clarity we use
4560 bfd_vma addend
= rel
->r_addend
;
4561 bfd_vma offset
= rel
->r_offset
;
4563 r_type
= ELF32_R_TYPE (rel
->r_info
);
4564 if (r_type
>= R_NDS32_max
)
4566 /* xgettext:c-format */
4567 _bfd_error_handler (_("%B: error: unknown relocation type %d."),
4569 bfd_set_error (bfd_error_bad_value
);
4574 if (r_type
== R_NDS32_GNU_VTENTRY
4575 || r_type
== R_NDS32_GNU_VTINHERIT
4576 || r_type
== R_NDS32_NONE
4577 || r_type
== R_NDS32_RELA_GNU_VTENTRY
4578 || r_type
== R_NDS32_RELA_GNU_VTINHERIT
4579 || (r_type
>= R_NDS32_INSN16
&& r_type
<= R_NDS32_25_FIXED_RELA
)
4580 || r_type
== R_NDS32_DATA
4581 || r_type
== R_NDS32_TRAN
4582 || (r_type
>= R_NDS32_LONGCALL4
&& r_type
<= R_NDS32_LONGJUMP7
))
4585 /* If we enter the fp-as-gp region. Resolve the address
4587 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
4588 && (rel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
4592 /* Distance to relocation of best fp-base is encoded in R_SYM. */
4593 dist
= rel
->r_addend
>> 16;
4594 fpbase_addr
= calculate_memory_address (input_bfd
, rel
+ dist
,
4595 local_syms
, symtab_hdr
);
4597 else if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_RELAX_REGION_END
4598 && (rel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
4600 fpbase_addr
= elf_gp (output_bfd
);
4603 if (((r_type
>= R_NDS32_DWARF2_OP1_RELA
4604 && r_type
<= R_NDS32_DWARF2_LEB_RELA
)
4605 || r_type
>= R_NDS32_RELAX_ENTRY
) && !bfd_link_relocatable (info
))
4608 howto
= bfd_elf32_bfd_reloc_type_table_lookup (r_type
);
4609 r_symndx
= ELF32_R_SYM (rel
->r_info
);
4611 /* This is a final link. */
4616 if (r_symndx
< symtab_hdr
->sh_info
)
4619 sym
= local_syms
+ r_symndx
;
4620 sec
= local_sections
[r_symndx
];
4622 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
4623 addend
= rel
->r_addend
;
4627 /* External symbol. */
4628 bfd_boolean warned
, ignored
, unresolved_reloc
;
4629 int symndx
= r_symndx
- symtab_hdr
->sh_info
;
4631 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
4632 r_symndx
, symtab_hdr
, sym_hashes
, h
, sec
,
4633 relocation
, unresolved_reloc
, warned
,
4636 /* la $fp, _FP_BASE_ is per-function (region).
4637 Handle it specially. */
4638 switch ((int) r_type
)
4640 case R_NDS32_SDA19S0_RELA
:
4641 case R_NDS32_SDA15S0_RELA
:
4642 case R_NDS32_20_RELA
:
4643 if (strcmp (elf_sym_hashes (input_bfd
)[symndx
]->root
.root
.string
,
4646 relocation
= fpbase_addr
;
4653 if (bfd_link_relocatable (info
))
4655 /* This is a relocatable link. We don't have to change
4656 anything, unless the reloc is against a section symbol,
4657 in which case we have to adjust according to where the
4658 section symbol winds up in the output section. */
4659 if (sym
!= NULL
&& ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
4660 rel
->r_addend
+= sec
->output_offset
+ sym
->st_value
;
4665 /* Sanity check the address. */
4666 if (offset
> high_address
)
4668 r
= bfd_reloc_outofrange
;
4672 if ((r_type
>= R_NDS32_DWARF2_OP1_RELA
4673 && r_type
<= R_NDS32_DWARF2_LEB_RELA
)
4674 || r_type
>= R_NDS32_RELAX_ENTRY
)
4677 switch ((int) r_type
)
4679 case R_NDS32_GOTOFF
:
4680 /* Relocation is relative to the start of the global offset
4681 table (for ld24 rx, #uimm24), e.g. access at label+addend
4683 ld24 rx. #label@GOTOFF + addend
4685 case R_NDS32_GOTOFF_HI20
:
4686 case R_NDS32_GOTOFF_LO12
:
4687 case R_NDS32_GOTOFF_LO15
:
4688 case R_NDS32_GOTOFF_LO19
:
4689 BFD_ASSERT (sgot
!= NULL
);
4691 relocation
-= elf_gp (output_bfd
);
4694 case R_NDS32_9_PLTREL
:
4695 case R_NDS32_25_PLTREL
:
4696 /* Relocation is to the entry for this symbol in the
4697 procedure linkage table. */
4699 /* The native assembler will generate a 25_PLTREL reloc
4700 for a local symbol if you assemble a call from one
4701 section to another when using -K pic. */
4705 if (h
->forced_local
)
4708 /* We didn't make a PLT entry for this symbol. This
4709 happens when statically linking PIC code, or when
4710 using -Bsymbolic. */
4711 if (h
->plt
.offset
== (bfd_vma
) - 1)
4714 relocation
= (splt
->output_section
->vma
4715 + splt
->output_offset
+ h
->plt
.offset
);
4718 case R_NDS32_PLT_GOTREL_HI20
:
4719 case R_NDS32_PLT_GOTREL_LO12
:
4720 case R_NDS32_PLT_GOTREL_LO15
:
4721 case R_NDS32_PLT_GOTREL_LO19
:
4722 case R_NDS32_PLT_GOTREL_LO20
:
4723 if (h
== NULL
|| h
->forced_local
|| h
->plt
.offset
== (bfd_vma
) - 1)
4725 /* We didn't make a PLT entry for this symbol. This
4726 happens when statically linking PIC code, or when
4727 using -Bsymbolic. */
4728 relocation
-= elf_gp (output_bfd
);
4732 relocation
= (splt
->output_section
->vma
4733 + splt
->output_offset
+ h
->plt
.offset
);
4735 relocation
-= elf_gp (output_bfd
);
4738 case R_NDS32_PLTREL_HI20
:
4739 case R_NDS32_PLTREL_LO12
:
4741 /* Relocation is to the entry for this symbol in the
4742 procedure linkage table. */
4744 /* The native assembler will generate a 25_PLTREL reloc
4745 for a local symbol if you assemble a call from one
4746 section to another when using -K pic. */
4750 if (h
->forced_local
)
4753 if (h
->plt
.offset
== (bfd_vma
) - 1)
4754 /* We didn't make a PLT entry for this symbol. This
4755 happens when statically linking PIC code, or when
4756 using -Bsymbolic. */
4762 relocation
= (splt
->output_section
->vma
4763 + splt
->output_offset
4764 + h
->plt
.offset
+ 4)
4765 - (input_section
->output_section
->vma
4766 + input_section
->output_offset
4771 case R_NDS32_GOTPC20
:
4772 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
4773 ld24 rx,#_GLOBAL_OFFSET_TABLE_ */
4774 relocation
= elf_gp (output_bfd
);
4777 case R_NDS32_GOTPC_HI20
:
4778 case R_NDS32_GOTPC_LO12
:
4780 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
4782 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
4783 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
4786 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
4787 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
4789 relocation
= elf_gp (output_bfd
);
4790 relocation
-= (input_section
->output_section
->vma
4791 + input_section
->output_offset
+ rel
->r_offset
);
4797 case R_NDS32_GOT_HI20
:
4798 case R_NDS32_GOT_LO12
:
4799 case R_NDS32_GOT_LO15
:
4800 case R_NDS32_GOT_LO19
:
4801 /* Relocation is to the entry for this symbol in the global
4803 BFD_ASSERT (sgot
!= NULL
);
4810 off
= h
->got
.offset
;
4811 BFD_ASSERT (off
!= (bfd_vma
) - 1);
4812 dyn
= htab
->root
.dynamic_sections_created
;
4813 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
4814 bfd_link_pic (info
),
4816 || (bfd_link_pic (info
)
4819 || h
->forced_local
) && h
->def_regular
))
4821 /* This is actually a static link, or it is a
4822 -Bsymbolic link and the symbol is defined
4823 locally, or the symbol was forced to be local
4824 because of a version file. We must initialize
4825 this entry in the global offset table. Since the
4826 offset must always be a multiple of 4, we use the
4827 least significant bit to record whether we have
4828 initialized it already.
4830 When doing a dynamic link, we create a .rela.got
4831 relocation entry to initialize the value. This
4832 is done in the finish_dynamic_symbol routine. */
4837 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
4841 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
4842 - elf_gp (output_bfd
);
4849 BFD_ASSERT (local_got_offsets
!= NULL
4850 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
4852 off
= local_got_offsets
[r_symndx
];
4854 /* The offset must always be a multiple of 4. We use
4855 the least significant bit to record whether we have
4856 already processed this entry. */
4861 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
4863 if (bfd_link_pic (info
))
4866 Elf_Internal_Rela outrel
;
4868 /* We need to generate a R_NDS32_RELATIVE reloc
4869 for the dynamic linker. */
4870 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
4871 BFD_ASSERT (srelgot
!= NULL
);
4873 outrel
.r_offset
= (elf_gp (output_bfd
)
4874 + sgot
->output_offset
+ off
);
4875 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
4876 outrel
.r_addend
= relocation
;
4877 loc
= srelgot
->contents
;
4879 srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
4880 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4881 ++srelgot
->reloc_count
;
4883 local_got_offsets
[r_symndx
] |= 1;
4885 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
4886 - elf_gp (output_bfd
);
4891 case R_NDS32_16_RELA
:
4892 case R_NDS32_20_RELA
:
4893 case R_NDS32_5_RELA
:
4894 case R_NDS32_32_RELA
:
4895 case R_NDS32_9_PCREL_RELA
:
4896 case R_NDS32_WORD_9_PCREL_RELA
:
4897 case R_NDS32_10_UPCREL_RELA
:
4898 case R_NDS32_15_PCREL_RELA
:
4899 case R_NDS32_17_PCREL_RELA
:
4900 case R_NDS32_25_PCREL_RELA
:
4901 case R_NDS32_HI20_RELA
:
4902 case R_NDS32_LO12S3_RELA
:
4903 case R_NDS32_LO12S2_RELA
:
4904 case R_NDS32_LO12S2_DP_RELA
:
4905 case R_NDS32_LO12S2_SP_RELA
:
4906 case R_NDS32_LO12S1_RELA
:
4907 case R_NDS32_LO12S0_RELA
:
4908 case R_NDS32_LO12S0_ORI_RELA
:
4909 if (bfd_link_pic (info
) && r_symndx
!= 0
4910 && (input_section
->flags
& SEC_ALLOC
) != 0
4911 && (eliminate_gc_relocs
== 0
4912 || (sec
&& (sec
->flags
& SEC_EXCLUDE
) == 0))
4913 && ((r_type
!= R_NDS32_9_PCREL_RELA
4914 && r_type
!= R_NDS32_WORD_9_PCREL_RELA
4915 && r_type
!= R_NDS32_10_UPCREL_RELA
4916 && r_type
!= R_NDS32_15_PCREL_RELA
4917 && r_type
!= R_NDS32_17_PCREL_RELA
4918 && r_type
!= R_NDS32_25_PCREL_RELA
4919 && !(r_type
== R_NDS32_32_RELA
4920 && strcmp (input_section
->name
, ".eh_frame") == 0))
4921 || (h
!= NULL
&& h
->dynindx
!= -1
4922 && (!info
->symbolic
|| !h
->def_regular
))))
4924 Elf_Internal_Rela outrel
;
4925 bfd_boolean skip
, relocate
;
4928 /* When generating a shared object, these relocations
4929 are copied into the output file to be resolved at run
4936 name
= bfd_elf_string_from_elf_section
4937 (input_bfd
, elf_elfheader (input_bfd
)->e_shstrndx
,
4938 elf_section_data (input_section
)->rela
.hdr
->sh_name
);
4942 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
4943 && strcmp (bfd_get_section_name (input_bfd
,
4947 sreloc
= bfd_get_section_by_name (dynobj
, name
);
4948 BFD_ASSERT (sreloc
!= NULL
);
4954 outrel
.r_offset
= _bfd_elf_section_offset (output_bfd
,
4958 if (outrel
.r_offset
== (bfd_vma
) - 1)
4960 else if (outrel
.r_offset
== (bfd_vma
) - 2)
4961 skip
= TRUE
, relocate
= TRUE
;
4962 outrel
.r_offset
+= (input_section
->output_section
->vma
4963 + input_section
->output_offset
);
4966 memset (&outrel
, 0, sizeof outrel
);
4967 else if (r_type
== R_NDS32_17_PCREL_RELA
4968 || r_type
== R_NDS32_15_PCREL_RELA
4969 || r_type
== R_NDS32_25_PCREL_RELA
)
4971 BFD_ASSERT (h
!= NULL
&& h
->dynindx
!= -1);
4972 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
4973 outrel
.r_addend
= rel
->r_addend
;
4977 /* h->dynindx may be -1 if this symbol was marked to
4980 || ((info
->symbolic
|| h
->dynindx
== -1)
4984 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
4985 outrel
.r_addend
= relocation
+ rel
->r_addend
;
4989 BFD_ASSERT (h
->dynindx
!= -1);
4990 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
4991 outrel
.r_addend
= rel
->r_addend
;
4995 loc
= sreloc
->contents
;
4996 loc
+= sreloc
->reloc_count
* sizeof (Elf32_External_Rela
);
4997 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4998 ++sreloc
->reloc_count
;
5000 /* If this reloc is against an external symbol, we do
5001 not want to fiddle with the addend. Otherwise, we
5002 need to include the symbol value so that it becomes
5003 an addend for the dynamic reloc. */
5009 case R_NDS32_25_ABS_RELA
:
5010 if (bfd_link_pic (info
))
5013 (_("%s: warning: cannot deal R_NDS32_25_ABS_RELA in shared "
5014 "mode."), bfd_get_filename (input_bfd
));
5019 case R_NDS32_9_PCREL
:
5020 r
= nds32_elf_do_9_pcrel_reloc (input_bfd
, howto
, input_section
,
5022 sec
, relocation
, addend
);
5027 Elf_Internal_Rela
*lorel
;
5029 /* We allow an arbitrary number of HI20 relocs before the
5030 LO12 reloc. This permits gcc to emit the HI and LO relocs
5032 for (lorel
= rel
+ 1;
5034 && ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_HI20
); lorel
++)
5037 && (ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S3
5038 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S2
5039 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S1
5040 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S0
))
5042 nds32_elf_relocate_hi20 (input_bfd
, r_type
, rel
, lorel
,
5043 contents
, relocation
+ addend
);
5047 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
5048 contents
, offset
, relocation
,
5054 case R_NDS32_GOT17S2_RELA
:
5055 case R_NDS32_GOT15S2_RELA
:
5059 BFD_ASSERT (sgot
!= NULL
);
5065 off
= h
->got
.offset
;
5066 BFD_ASSERT (off
!= (bfd_vma
) - 1);
5068 dyn
= htab
->root
.dynamic_sections_created
;
5069 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL
5070 (dyn
, bfd_link_pic (info
), h
)
5071 || (bfd_link_pic (info
)
5077 /* This is actually a static link, or it is a
5078 -Bsymbolic link and the symbol is defined
5079 locally, or the symbol was forced to be local
5080 because of a version file. We must initialize
5081 this entry in the global offset table. Since the
5082 offset must always be a multiple of 4, we use the
5083 least significant bit to record whether we have
5084 initialized it already.
5086 When doing a dynamic link, we create a .rela.got
5087 relocation entry to initialize the value. This
5088 is done in the finish_dynamic_symbol routine. */
5093 bfd_put_32 (output_bfd
, relocation
,
5094 sgot
->contents
+ off
);
5103 BFD_ASSERT (local_got_offsets
!= NULL
5104 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5106 off
= local_got_offsets
[r_symndx
];
5108 /* The offset must always be a multiple of 4. We use
5109 the least significant bit to record whether we have
5110 already processed this entry. */
5115 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
5117 if (bfd_link_pic (info
))
5120 Elf_Internal_Rela outrel
;
5122 /* We need to generate a R_NDS32_RELATIVE reloc
5123 for the dynamic linker. */
5124 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
5125 BFD_ASSERT (srelgot
!= NULL
);
5127 outrel
.r_offset
= (elf_gp (output_bfd
)
5128 + sgot
->output_offset
+ off
);
5129 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5130 outrel
.r_addend
= relocation
;
5131 loc
= srelgot
->contents
;
5133 srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
5134 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5135 ++srelgot
->reloc_count
;
5137 local_got_offsets
[r_symndx
] |= 1;
5140 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
5141 - elf_gp (output_bfd
);
5143 if (relocation
& align
)
5145 /* Incorrect alignment. */
5147 (_("%B: warning: unaligned access to GOT entry."), input_bfd
);
5149 r
= bfd_reloc_dangerous
;
5154 case R_NDS32_SDA16S3_RELA
:
5155 case R_NDS32_SDA15S3_RELA
:
5156 case R_NDS32_SDA15S3
:
5160 case R_NDS32_SDA17S2_RELA
:
5161 case R_NDS32_SDA15S2_RELA
:
5162 case R_NDS32_SDA12S2_SP_RELA
:
5163 case R_NDS32_SDA12S2_DP_RELA
:
5164 case R_NDS32_SDA15S2
:
5165 case R_NDS32_SDA_FP7U2_RELA
:
5169 case R_NDS32_SDA18S1_RELA
:
5170 case R_NDS32_SDA15S1_RELA
:
5171 case R_NDS32_SDA15S1
:
5175 case R_NDS32_SDA19S0_RELA
:
5176 case R_NDS32_SDA15S0_RELA
:
5177 case R_NDS32_SDA15S0
:
5181 BFD_ASSERT (sec
!= NULL
);
5183 /* If the symbol is in the abs section, the out_bfd will be null.
5184 This happens when the relocation has a symbol@GOTOFF. */
5185 r
= nds32_elf_final_sda_base (output_bfd
, info
, &gp
, FALSE
);
5186 if (r
!= bfd_reloc_ok
)
5189 (_("%B: warning: relocate SDA_BASE failed."), input_bfd
);
5194 /* At this point `relocation' contains the object's
5196 if (r_type
== R_NDS32_SDA_FP7U2_RELA
)
5198 relocation
-= fpbase_addr
;
5202 /* Now it contains the offset from _SDA_BASE_. */
5204 /* Make sure alignment is correct. */
5206 if (relocation
& align
)
5208 /* Incorrect alignment. */
5210 /* xgettext:c-format */
5211 (_("%B(%A): warning: unaligned small data access of type %d."),
5212 input_bfd
, input_section
, r_type
);
5219 case R_NDS32_17IFC_PCREL_RELA
:
5220 case R_NDS32_10IFCU_PCREL_RELA
:
5224 case R_NDS32_TLS_LE_HI20
:
5225 case R_NDS32_TLS_LE_LO12
:
5226 case R_NDS32_TLS_LE_20
:
5227 case R_NDS32_TLS_LE_15S0
:
5228 case R_NDS32_TLS_LE_15S1
:
5229 case R_NDS32_TLS_LE_15S2
:
5230 if (elf_hash_table (info
)->tls_sec
!= NULL
)
5231 relocation
-= (elf_hash_table (info
)->tls_sec
->vma
+ TP_OFFSET
);
5233 case R_NDS32_TLS_IE_HI20
:
5234 case R_NDS32_TLS_IE_LO12S2
:
5236 /* Relocation is to the entry for this symbol in the global
5238 unsigned int tls_type
;
5240 Elf_Internal_Rela outrel
;
5245 BFD_ASSERT (sgot
!= NULL
);
5250 off
= h
->got
.offset
;
5251 BFD_ASSERT (off
!= (bfd_vma
) - 1);
5252 dyn
= htab
->root
.dynamic_sections_created
;
5253 tls_type
= ((struct elf_nds32_link_hash_entry
*) h
)->tls_type
;
5254 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
)
5255 && (!bfd_link_pic (info
)
5256 || !SYMBOL_REFERENCES_LOCAL (info
, h
)))
5261 /* Never happen currently. */
5262 BFD_ASSERT (local_got_offsets
!= NULL
5263 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5265 off
= local_got_offsets
[r_symndx
];
5267 tls_type
= elf32_nds32_local_got_tls_type (input_bfd
)[r_symndx
];
5269 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
;
5271 if (r_type
== R_NDS32_TLS_IE_LO12S2
)
5274 /* The offset must always be a multiple of 4. We use
5275 the least significant bit to record whether we have
5276 already processed this entry. */
5281 bfd_boolean need_relocs
= FALSE
;
5282 srelgot
= htab
->srelgot
;
5283 if ((bfd_link_pic (info
) || indx
!= 0)
5285 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
5286 || h
->root
.type
!= bfd_link_hash_undefweak
))
5289 BFD_ASSERT (srelgot
!= NULL
);
5291 if (tls_type
& GOT_TLS_IE
)
5295 if (h
->dynindx
== 0)
5296 outrel
.r_addend
= relocation
- dtpoff_base (info
);
5298 outrel
.r_addend
= 0;
5299 outrel
.r_offset
= (sgot
->output_section
->vma
5300 + sgot
->output_offset
5303 ELF32_R_INFO (h
->dynindx
, R_NDS32_TLS_TPOFF
);
5305 loc
= srelgot
->contents
;
5307 srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
5308 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5309 ++srelgot
->reloc_count
;
5312 bfd_put_32 (output_bfd
, h
->root
.u
.def
.value
- TP_OFFSET
,
5313 sgot
->contents
+ off
);
5319 /* DON'T fall through. */
5322 /* OLD_NDS32_RELOC. */
5324 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
5325 contents
, offset
, relocation
, addend
);
5329 switch ((int) r_type
)
5331 case R_NDS32_20_RELA
:
5332 case R_NDS32_5_RELA
:
5333 case R_NDS32_9_PCREL_RELA
:
5334 case R_NDS32_WORD_9_PCREL_RELA
:
5335 case R_NDS32_10_UPCREL_RELA
:
5336 case R_NDS32_15_PCREL_RELA
:
5337 case R_NDS32_17_PCREL_RELA
:
5338 case R_NDS32_25_PCREL_RELA
:
5339 case R_NDS32_25_ABS_RELA
:
5340 case R_NDS32_HI20_RELA
:
5341 case R_NDS32_LO12S3_RELA
:
5342 case R_NDS32_LO12S2_RELA
:
5343 case R_NDS32_LO12S2_DP_RELA
:
5344 case R_NDS32_LO12S2_SP_RELA
:
5345 case R_NDS32_LO12S1_RELA
:
5346 case R_NDS32_LO12S0_RELA
:
5347 case R_NDS32_LO12S0_ORI_RELA
:
5348 case R_NDS32_SDA16S3_RELA
:
5349 case R_NDS32_SDA17S2_RELA
:
5350 case R_NDS32_SDA18S1_RELA
:
5351 case R_NDS32_SDA19S0_RELA
:
5352 case R_NDS32_SDA15S3_RELA
:
5353 case R_NDS32_SDA15S2_RELA
:
5354 case R_NDS32_SDA12S2_DP_RELA
:
5355 case R_NDS32_SDA12S2_SP_RELA
:
5356 case R_NDS32_SDA15S1_RELA
:
5357 case R_NDS32_SDA15S0_RELA
:
5358 case R_NDS32_SDA_FP7U2_RELA
:
5359 case R_NDS32_9_PLTREL
:
5360 case R_NDS32_25_PLTREL
:
5362 case R_NDS32_GOT_HI20
:
5363 case R_NDS32_GOT_LO12
:
5364 case R_NDS32_GOT_LO15
:
5365 case R_NDS32_GOT_LO19
:
5366 case R_NDS32_GOT15S2_RELA
:
5367 case R_NDS32_GOT17S2_RELA
:
5368 case R_NDS32_GOTPC20
:
5369 case R_NDS32_GOTPC_HI20
:
5370 case R_NDS32_GOTPC_LO12
:
5371 case R_NDS32_GOTOFF
:
5372 case R_NDS32_GOTOFF_HI20
:
5373 case R_NDS32_GOTOFF_LO12
:
5374 case R_NDS32_GOTOFF_LO15
:
5375 case R_NDS32_GOTOFF_LO19
:
5376 case R_NDS32_PLTREL_HI20
:
5377 case R_NDS32_PLTREL_LO12
:
5378 case R_NDS32_PLT_GOTREL_HI20
:
5379 case R_NDS32_PLT_GOTREL_LO12
:
5380 case R_NDS32_PLT_GOTREL_LO15
:
5381 case R_NDS32_PLT_GOTREL_LO19
:
5382 case R_NDS32_PLT_GOTREL_LO20
:
5383 case R_NDS32_17IFC_PCREL_RELA
:
5384 case R_NDS32_10IFCU_PCREL_RELA
:
5385 case R_NDS32_TLS_LE_HI20
:
5386 case R_NDS32_TLS_LE_LO12
:
5387 case R_NDS32_TLS_IE_HI20
:
5388 case R_NDS32_TLS_IE_LO12S2
:
5389 case R_NDS32_TLS_LE_20
:
5390 case R_NDS32_TLS_LE_15S0
:
5391 case R_NDS32_TLS_LE_15S1
:
5392 case R_NDS32_TLS_LE_15S2
:
5393 /* Instruction related relocs must handle endian properly. */
5394 /* NOTE: PIC IS NOT HANDLE YET; DO IT LATER. */
5395 r
= nds32_elf_final_link_relocate (howto
, input_bfd
,
5396 input_section
, contents
,
5397 rel
->r_offset
, relocation
,
5402 /* All other relocs can use default handler. */
5403 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
5404 contents
, rel
->r_offset
,
5405 relocation
, rel
->r_addend
);
5411 if (r
!= bfd_reloc_ok
)
5413 /* FIXME: This should be generic enough to go in a utility. */
5417 name
= h
->root
.root
.string
;
5420 name
= bfd_elf_string_from_elf_section
5421 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
);
5422 if (name
== NULL
|| *name
== '\0')
5423 name
= bfd_section_name (input_bfd
, sec
);
5431 case bfd_reloc_overflow
:
5432 (*info
->callbacks
->reloc_overflow
)
5433 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
5434 (bfd_vma
) 0, input_bfd
, input_section
, offset
);
5437 case bfd_reloc_undefined
:
5438 (*info
->callbacks
->undefined_symbol
)
5439 (info
, name
, input_bfd
, input_section
, offset
, TRUE
);
5442 case bfd_reloc_outofrange
:
5443 errmsg
= _("internal error: out of range error");
5446 case bfd_reloc_notsupported
:
5447 errmsg
= _("internal error: unsupported relocation error");
5450 case bfd_reloc_dangerous
:
5451 errmsg
= _("internal error: dangerous error");
5455 errmsg
= _("internal error: unknown error");
5459 (*info
->callbacks
->warning
) (info
, errmsg
, name
, input_bfd
,
5460 input_section
, offset
);
5469 /* Finish up dynamic symbol handling. We set the contents of various
5470 dynamic sections here. */
5473 nds32_elf_finish_dynamic_symbol (bfd
*output_bfd
, struct bfd_link_info
*info
,
5474 struct elf_link_hash_entry
*h
, Elf_Internal_Sym
*sym
)
5476 struct elf_nds32_link_hash_table
*htab
;
5479 htab
= nds32_elf_hash_table (info
);
5481 if (h
->plt
.offset
!= (bfd_vma
) - 1)
5489 bfd_vma local_plt_offset
;
5490 Elf_Internal_Rela rela
;
5492 /* This symbol has an entry in the procedure linkage table. Set
5495 BFD_ASSERT (h
->dynindx
!= -1);
5498 sgot
= htab
->sgotplt
;
5499 srela
= htab
->srelplt
;
5500 BFD_ASSERT (splt
!= NULL
&& sgot
!= NULL
&& srela
!= NULL
);
5502 /* Get the index in the procedure linkage table which
5503 corresponds to this symbol. This is the index of this symbol
5504 in all the symbols for which we are making plt entries. The
5505 first entry in the procedure linkage table is reserved. */
5506 plt_index
= h
->plt
.offset
/ PLT_ENTRY_SIZE
- 1;
5508 /* Get the offset into the .got table of the entry that
5509 corresponds to this function. Each .got entry is 4 bytes.
5510 The first three are reserved. */
5511 got_offset
= (plt_index
+ 3) * 4;
5513 /* Fill in the entry in the procedure linkage table. */
5514 if (!bfd_link_pic (info
))
5518 insn
= PLT_ENTRY_WORD0
+ (((sgot
->output_section
->vma
5519 + sgot
->output_offset
+ got_offset
) >> 12)
5521 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
);
5523 insn
= PLT_ENTRY_WORD1
+ (((sgot
->output_section
->vma
5524 + sgot
->output_offset
+ got_offset
) & 0x0fff)
5526 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 4);
5528 insn
= PLT_ENTRY_WORD2
;
5529 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 8);
5531 insn
= PLT_ENTRY_WORD3
+ (plt_index
& 0x7ffff);
5532 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 12);
5534 insn
= PLT_ENTRY_WORD4
5535 + (((unsigned int) ((-(h
->plt
.offset
+ 16)) >> 1)) & 0xffffff);
5536 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 16);
5537 local_plt_offset
= 12;
5541 /* sda_base must be set at this time. */
5545 /* FIXME, sda_base is 65536, it will damage opcode. */
5546 /* insn = PLT_PIC_ENTRY_WORD0 + (((got_offset - sda_base) >> 2) & 0x7fff); */
5547 offset
= sgot
->output_section
->vma
+ sgot
->output_offset
+ got_offset
5548 - elf_gp (output_bfd
);
5549 insn
= PLT_PIC_ENTRY_WORD0
+ ((offset
>> 12) & 0xfffff);
5550 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
);
5552 insn
= PLT_PIC_ENTRY_WORD1
+ (offset
& 0xfff);
5553 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 4);
5555 insn
= PLT_PIC_ENTRY_WORD2
;
5556 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 8);
5558 insn
= PLT_PIC_ENTRY_WORD3
;
5559 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 12);
5561 insn
= PLT_PIC_ENTRY_WORD4
+ (plt_index
& 0x7fffff);
5562 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 16);
5564 insn
= PLT_PIC_ENTRY_WORD5
5565 + (((unsigned int) ((-(h
->plt
.offset
+ 20)) >> 1)) & 0xffffff);
5566 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 20);
5568 local_plt_offset
= 16;
5571 /* Fill in the entry in the global offset table,
5572 so it will fall through to the next instruction for the first time. */
5573 bfd_put_32 (output_bfd
,
5574 (splt
->output_section
->vma
+ splt
->output_offset
5575 + h
->plt
.offset
+ local_plt_offset
),
5576 sgot
->contents
+ got_offset
);
5578 /* Fill in the entry in the .rela.plt section. */
5579 rela
.r_offset
= (sgot
->output_section
->vma
5580 + sgot
->output_offset
+ got_offset
);
5581 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_JMP_SLOT
);
5583 loc
= srela
->contents
;
5584 loc
+= plt_index
* sizeof (Elf32_External_Rela
);
5585 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
5587 if (!h
->def_regular
)
5589 /* Mark the symbol as undefined, rather than as defined in
5590 the .plt section. Leave the value alone. */
5591 sym
->st_shndx
= SHN_UNDEF
;
5592 if (!h
->ref_regular_nonweak
)
5597 if (h
->got
.offset
!= (bfd_vma
) - 1)
5601 Elf_Internal_Rela rela
;
5603 /* This symbol has an entry in the global offset table.
5607 srela
= htab
->srelgot
;
5608 BFD_ASSERT (sgot
!= NULL
&& srela
!= NULL
);
5610 rela
.r_offset
= (sgot
->output_section
->vma
5611 + sgot
->output_offset
+ (h
->got
.offset
& ~1));
5613 /* If this is a -Bsymbolic link, and the symbol is defined
5614 locally, we just want to emit a RELATIVE reloc. Likewise if
5615 the symbol was forced to be local because of a version file.
5616 The entry in the global offset table will already have been
5617 initialized in the relocate_section function. */
5618 if (bfd_link_pic (info
)
5620 || h
->dynindx
== -1 || h
->forced_local
) && h
->def_regular
)
5622 rela
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5623 rela
.r_addend
= (h
->root
.u
.def
.value
5624 + h
->root
.u
.def
.section
->output_section
->vma
5625 + h
->root
.u
.def
.section
->output_offset
);
5629 BFD_ASSERT ((h
->got
.offset
& 1) == 0);
5630 bfd_put_32 (output_bfd
, (bfd_vma
) 0,
5631 sgot
->contents
+ h
->got
.offset
);
5632 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_GLOB_DAT
);
5636 loc
= srela
->contents
;
5637 loc
+= srela
->reloc_count
* sizeof (Elf32_External_Rela
);
5638 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
5639 ++srela
->reloc_count
;
5645 Elf_Internal_Rela rela
;
5647 /* This symbols needs a copy reloc. Set it up. */
5649 BFD_ASSERT (h
->dynindx
!= -1
5650 && (h
->root
.type
== bfd_link_hash_defined
5651 || h
->root
.type
== bfd_link_hash_defweak
));
5653 s
= bfd_get_section_by_name (h
->root
.u
.def
.section
->owner
, ".rela.bss");
5654 BFD_ASSERT (s
!= NULL
);
5656 rela
.r_offset
= (h
->root
.u
.def
.value
5657 + h
->root
.u
.def
.section
->output_section
->vma
5658 + h
->root
.u
.def
.section
->output_offset
);
5659 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_COPY
);
5662 loc
+= s
->reloc_count
* sizeof (Elf32_External_Rela
);
5663 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
5667 /* Mark some specially defined symbols as absolute. */
5668 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
5669 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
5670 sym
->st_shndx
= SHN_ABS
;
5676 /* Finish up the dynamic sections. */
5679 nds32_elf_finish_dynamic_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
5681 struct elf_nds32_link_hash_table
*htab
;
5686 htab
= nds32_elf_hash_table (info
);
5687 dynobj
= htab
->root
.dynobj
;
5689 sgot
= htab
->sgotplt
;
5690 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
5692 if (htab
->root
.dynamic_sections_created
)
5695 Elf32_External_Dyn
*dyncon
, *dynconend
;
5697 BFD_ASSERT (sgot
!= NULL
&& sdyn
!= NULL
);
5699 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
5700 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
5702 for (; dyncon
< dynconend
; dyncon
++)
5704 Elf_Internal_Dyn dyn
;
5707 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
5720 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
5721 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
5726 dyn
.d_un
.d_val
= s
->size
;
5727 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
5731 /* My reading of the SVR4 ABI indicates that the
5732 procedure linkage table relocs (DT_JMPREL) should be
5733 included in the overall relocs (DT_RELA). This is
5734 what Solaris does. However, UnixWare can not handle
5735 that case. Therefore, we override the DT_RELASZ entry
5736 here to make it not include the JMPREL relocs. Since
5737 the linker script arranges for .rela.plt to follow all
5738 other relocation sections, we don't have to worry
5739 about changing the DT_RELA entry. */
5740 if (htab
->srelplt
!= NULL
)
5743 dyn
.d_un
.d_val
-= s
->size
;
5745 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
5750 /* Fill in the first entry in the procedure linkage table. */
5752 if (splt
&& splt
->size
> 0)
5754 if (bfd_link_pic (info
))
5759 /* FIXME, sda_base is 65536, it will damage opcode. */
5760 /* insn = PLT_PIC_ENTRY_WORD0 + (((got_offset - sda_base) >> 2) & 0x7fff); */
5761 offset
= sgot
->output_section
->vma
+ sgot
->output_offset
+ 4
5762 - elf_gp (output_bfd
);
5763 insn
= PLT0_PIC_ENTRY_WORD0
| ((offset
>> 12) & 0xfffff);
5764 bfd_putb32 (insn
, splt
->contents
);
5766 /* insn = PLT0_PIC_ENTRY_WORD0 | (((8 - sda_base) >> 2) & 0x7fff) ; */
5767 /* here has a typo? */
5768 insn
= PLT0_PIC_ENTRY_WORD1
| (offset
& 0xfff);
5769 bfd_putb32 (insn
, splt
->contents
+ 4);
5771 insn
= PLT0_PIC_ENTRY_WORD2
;
5772 bfd_putb32 (insn
, splt
->contents
+ 8);
5774 insn
= PLT0_PIC_ENTRY_WORD3
;
5775 bfd_putb32 (insn
, splt
->contents
+ 12);
5777 insn
= PLT0_PIC_ENTRY_WORD4
;
5778 bfd_putb32 (insn
, splt
->contents
+ 16);
5780 insn
= PLT0_PIC_ENTRY_WORD5
;
5781 bfd_putb32 (insn
, splt
->contents
+ 20);
5788 /* addr = .got + 4 */
5789 addr
= sgot
->output_section
->vma
+ sgot
->output_offset
+ 4;
5790 insn
= PLT0_ENTRY_WORD0
| ((addr
>> 12) & 0xfffff);
5791 bfd_putb32 (insn
, splt
->contents
);
5793 insn
= PLT0_ENTRY_WORD1
| (addr
& 0x0fff);
5794 bfd_putb32 (insn
, splt
->contents
+ 4);
5796 insn
= PLT0_ENTRY_WORD2
;
5797 bfd_putb32 (insn
, splt
->contents
+ 8);
5799 insn
= PLT0_ENTRY_WORD3
;
5800 bfd_putb32 (insn
, splt
->contents
+ 12);
5802 insn
= PLT0_ENTRY_WORD4
;
5803 bfd_putb32 (insn
, splt
->contents
+ 16);
5806 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
=
5811 /* Fill in the first three entries in the global offset table. */
5812 if (sgot
&& sgot
->size
> 0)
5815 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
);
5817 bfd_put_32 (output_bfd
,
5818 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
5820 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 4);
5821 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 8);
5823 elf_section_data (sgot
->output_section
)->this_hdr
.sh_entsize
= 4;
5830 /* Set the right machine number. */
5833 nds32_elf_object_p (bfd
*abfd
)
5835 static unsigned int cur_arch
= 0;
5837 if (E_N1_ARCH
!= (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
))
5839 /* E_N1_ARCH is a wild card, so it is set only when no others exist. */
5840 cur_arch
= (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
);
5847 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1
);
5850 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h
);
5852 case E_NDS_ARCH_STAR_V2_0
:
5853 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v2
);
5855 case E_NDS_ARCH_STAR_V3_0
:
5856 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v3
);
5858 case E_NDS_ARCH_STAR_V3_M
:
5859 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v3m
);
5866 /* Store the machine number in the flags field. */
5869 nds32_elf_final_write_processing (bfd
*abfd
,
5870 bfd_boolean linker ATTRIBUTE_UNUSED
)
5873 static unsigned int cur_mach
= 0;
5875 if (bfd_mach_n1
!= bfd_get_mach (abfd
))
5877 cur_mach
= bfd_get_mach (abfd
);
5883 /* Only happen when object is empty, since the case is abandon. */
5885 val
|= E_NDS_ABI_AABI
;
5886 val
|= E_NDS32_ELF_VER_1_4
;
5891 case bfd_mach_n1h_v2
:
5892 val
= E_NDS_ARCH_STAR_V2_0
;
5894 case bfd_mach_n1h_v3
:
5895 val
= E_NDS_ARCH_STAR_V3_0
;
5897 case bfd_mach_n1h_v3m
:
5898 val
= E_NDS_ARCH_STAR_V3_M
;
5905 elf_elfheader (abfd
)->e_flags
&= ~EF_NDS_ARCH
;
5906 elf_elfheader (abfd
)->e_flags
|= val
;
5909 /* Function to keep NDS32 specific file flags. */
5912 nds32_elf_set_private_flags (bfd
*abfd
, flagword flags
)
5914 BFD_ASSERT (!elf_flags_init (abfd
)
5915 || elf_elfheader (abfd
)->e_flags
== flags
);
5917 elf_elfheader (abfd
)->e_flags
= flags
;
5918 elf_flags_init (abfd
) = TRUE
;
5923 convert_e_flags (unsigned int e_flags
, unsigned int arch
)
5925 if ((e_flags
& EF_NDS_ARCH
) == E_NDS_ARCH_STAR_V0_9
)
5927 /* From 0.9 to 1.0. */
5928 e_flags
= (e_flags
& (~EF_NDS_ARCH
)) | E_NDS_ARCH_STAR_V1_0
;
5930 /* Invert E_NDS32_HAS_NO_MAC_INST. */
5931 e_flags
^= E_NDS32_HAS_NO_MAC_INST
;
5932 if (arch
== E_NDS_ARCH_STAR_V1_0
)
5939 /* From 1.0 to 2.0. */
5940 e_flags
= (e_flags
& (~EF_NDS_ARCH
)) | E_NDS_ARCH_STAR_V2_0
;
5942 /* Clear E_NDS32_HAS_MFUSR_PC_INST. */
5943 e_flags
&= ~E_NDS32_HAS_MFUSR_PC_INST
;
5945 /* Invert E_NDS32_HAS_NO_MAC_INST. */
5946 e_flags
^= E_NDS32_HAS_NO_MAC_INST
;
5951 nds32_check_vec_size (bfd
*ibfd
)
5953 static unsigned int nds32_vec_size
= 0;
5955 asection
*sec_t
= NULL
;
5956 bfd_byte
*contents
= NULL
;
5958 sec_t
= bfd_get_section_by_name (ibfd
, ".nds32_e_flags");
5960 if (sec_t
&& sec_t
->size
>= 4)
5962 /* Get vec_size in file. */
5963 unsigned int flag_t
;
5965 nds32_get_section_contents (ibfd
, sec_t
, &contents
, TRUE
);
5966 flag_t
= bfd_get_32 (ibfd
, contents
);
5968 /* The value could only be 4 or 16. */
5970 if (!nds32_vec_size
)
5971 /* Set if not set yet. */
5972 nds32_vec_size
= (flag_t
& 0x3);
5973 else if (nds32_vec_size
!= (flag_t
& 0x3))
5976 /* xgettext:c-format */
5977 (_("%B: ISR vector size mismatch"
5978 " with previous modules, previous %u-byte, current %u-byte"),
5980 nds32_vec_size
== 1 ? 4 : nds32_vec_size
== 2 ? 16 : 0xffffffff,
5981 (flag_t
& 0x3) == 1 ? 4 : (flag_t
& 0x3) == 2 ? 16 : 0xffffffff);
5985 /* Only keep the first vec_size section. */
5986 sec_t
->flags
|= SEC_EXCLUDE
;
5992 /* Merge backend specific data from an object file to the output
5993 object file when linking. */
5996 nds32_elf_merge_private_bfd_data (bfd
*ibfd
, struct bfd_link_info
*info
)
5998 bfd
*obfd
= info
->output_bfd
;
6001 flagword out_16regs
;
6003 flagword out_no_mac
;
6005 flagword out_version
;
6006 flagword in_version
;
6007 flagword out_fpu_config
;
6008 flagword in_fpu_config
;
6010 /* TODO: Revise to use object-attributes instead. */
6011 if (!nds32_check_vec_size (ibfd
))
6014 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
6015 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
6018 if (bfd_little_endian (ibfd
) != bfd_little_endian (obfd
))
6021 (_("%B: warning: Endian mismatch with previous modules."), ibfd
);
6023 bfd_set_error (bfd_error_bad_value
);
6027 in_version
= elf_elfheader (ibfd
)->e_flags
& EF_NDS32_ELF_VERSION
;
6028 if (in_version
== E_NDS32_ELF_VER_1_2
)
6031 (_("%B: warning: Older version of object file encountered, "
6032 "Please recompile with current tool chain."), ibfd
);
6035 /* We may need to merge V1 and V2 arch object files to V2. */
6036 if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6037 != (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
))
6039 /* Need to convert version. */
6040 if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6041 == E_NDS_ARCH_STAR_RESERVED
)
6043 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
6045 else if ((elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
) == E_NDS_ARCH_STAR_V0_9
6046 || (elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6047 > (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
))
6049 elf_elfheader (obfd
)->e_flags
=
6050 convert_e_flags (elf_elfheader (obfd
)->e_flags
,
6051 (elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
));
6055 elf_elfheader (ibfd
)->e_flags
=
6056 convert_e_flags (elf_elfheader (ibfd
)->e_flags
,
6057 (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
));
6061 /* Extract some flags. */
6062 in_flags
= elf_elfheader (ibfd
)->e_flags
6063 & (~(E_NDS32_HAS_REDUCED_REGS
| EF_NDS32_ELF_VERSION
6064 | E_NDS32_HAS_NO_MAC_INST
| E_NDS32_FPU_REG_CONF
));
6066 /* The following flags need special treatment. */
6067 in_16regs
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_HAS_REDUCED_REGS
;
6068 in_no_mac
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_HAS_NO_MAC_INST
;
6069 in_fpu_config
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_FPU_REG_CONF
;
6071 /* Extract some flags. */
6072 out_flags
= elf_elfheader (obfd
)->e_flags
6073 & (~(E_NDS32_HAS_REDUCED_REGS
| EF_NDS32_ELF_VERSION
6074 | E_NDS32_HAS_NO_MAC_INST
| E_NDS32_FPU_REG_CONF
));
6076 /* The following flags need special treatment. */
6077 out_16regs
= elf_elfheader (obfd
)->e_flags
& E_NDS32_HAS_REDUCED_REGS
;
6078 out_no_mac
= elf_elfheader (obfd
)->e_flags
& E_NDS32_HAS_NO_MAC_INST
;
6079 out_fpu_config
= elf_elfheader (obfd
)->e_flags
& E_NDS32_FPU_REG_CONF
;
6080 out_version
= elf_elfheader (obfd
)->e_flags
& EF_NDS32_ELF_VERSION
;
6081 if (!elf_flags_init (obfd
))
6083 /* If the input is the default architecture then do not
6084 bother setting the flags for the output architecture,
6085 instead allow future merges to do this. If no future
6086 merges ever set these flags then they will retain their
6087 unitialised values, which surprise surprise, correspond
6088 to the default values. */
6089 if (bfd_get_arch_info (ibfd
)->the_default
)
6092 elf_flags_init (obfd
) = TRUE
;
6093 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
6095 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
6096 && bfd_get_arch_info (obfd
)->the_default
)
6098 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
6099 bfd_get_mach (ibfd
));
6105 /* Check flag compatibility. */
6106 if ((in_flags
& EF_NDS_ABI
) != (out_flags
& EF_NDS_ABI
))
6109 (_("%B: error: ABI mismatch with previous modules."), ibfd
);
6111 bfd_set_error (bfd_error_bad_value
);
6115 if ((in_flags
& EF_NDS_ARCH
) != (out_flags
& EF_NDS_ARCH
))
6117 if (((in_flags
& EF_NDS_ARCH
) != E_N1_ARCH
))
6120 (_("%B: error: Instruction set mismatch with previous modules."), ibfd
);
6122 bfd_set_error (bfd_error_bad_value
);
6127 /* When linking with V1.2 and V1.3 objects together the output is V1.2.
6128 and perf ext1 and DIV are mergerd to perf ext1. */
6129 if (in_version
== E_NDS32_ELF_VER_1_2
|| out_version
== E_NDS32_ELF_VER_1_2
)
6131 elf_elfheader (obfd
)->e_flags
=
6132 (in_flags
& (~(E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6133 | (out_flags
& (~(E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6134 | (((in_flags
& (E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6135 ? E_NDS32_HAS_EXT_INST
: 0)
6136 | (((out_flags
& (E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6137 ? E_NDS32_HAS_EXT_INST
: 0)
6138 | (in_16regs
& out_16regs
) | (in_no_mac
& out_no_mac
)
6139 | ((in_version
> out_version
) ? out_version
: in_version
);
6143 if (in_version
!= out_version
)
6145 /* xgettext:c-format */
6146 (_("%B: warning: Incompatible elf-versions %s and %s."),
6147 ibfd
, nds32_elfver_strtab
[out_version
],
6148 nds32_elfver_strtab
[in_version
]);
6150 elf_elfheader (obfd
)->e_flags
= in_flags
| out_flags
6151 | (in_16regs
& out_16regs
) | (in_no_mac
& out_no_mac
)
6152 | (in_fpu_config
> out_fpu_config
? in_fpu_config
: out_fpu_config
)
6153 | (in_version
> out_version
? out_version
: in_version
);
6159 /* Display the flags field. */
6162 nds32_elf_print_private_bfd_data (bfd
*abfd
, void *ptr
)
6164 FILE *file
= (FILE *) ptr
;
6166 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
6168 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
6170 fprintf (file
, _("private flags = %lx"), elf_elfheader (abfd
)->e_flags
);
6172 switch (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
)
6176 fprintf (file
, _(": n1 instructions"));
6179 fprintf (file
, _(": n1h instructions"));
6189 nds32_elf_action_discarded (asection
*sec
)
6193 (".gcc_except_table", sec
->name
, sizeof (".gcc_except_table") - 1) == 0)
6196 return _bfd_elf_default_action_discarded (sec
);
6200 nds32_elf_gc_mark_hook (asection
*sec
, struct bfd_link_info
*info
,
6201 Elf_Internal_Rela
*rel
, struct elf_link_hash_entry
*h
,
6202 Elf_Internal_Sym
*sym
)
6205 switch (ELF32_R_TYPE (rel
->r_info
))
6207 case R_NDS32_GNU_VTINHERIT
:
6208 case R_NDS32_GNU_VTENTRY
:
6209 case R_NDS32_RELA_GNU_VTINHERIT
:
6210 case R_NDS32_RELA_GNU_VTENTRY
:
6214 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
6218 nds32_elf_gc_sweep_hook (bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
6219 const Elf_Internal_Rela
*relocs
)
6221 /* Update the got entry reference counts for the section being removed. */
6222 Elf_Internal_Shdr
*symtab_hdr
;
6223 struct elf_link_hash_entry
**sym_hashes
;
6224 bfd_signed_vma
*local_got_refcounts
;
6225 const Elf_Internal_Rela
*rel
, *relend
;
6227 elf_section_data (sec
)->local_dynrel
= NULL
;
6229 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
6230 sym_hashes
= elf_sym_hashes (abfd
);
6231 local_got_refcounts
= elf_local_got_refcounts (abfd
);
6233 relend
= relocs
+ sec
->reloc_count
;
6234 for (rel
= relocs
; rel
< relend
; rel
++)
6236 unsigned long r_symndx
;
6237 struct elf_link_hash_entry
*h
= NULL
;
6239 r_symndx
= ELF32_R_SYM (rel
->r_info
);
6240 if (r_symndx
>= symtab_hdr
->sh_info
)
6242 /* External symbol. */
6243 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
6244 while (h
->root
.type
== bfd_link_hash_indirect
6245 || h
->root
.type
== bfd_link_hash_warning
)
6246 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
6249 switch (ELF32_R_TYPE (rel
->r_info
))
6251 case R_NDS32_GOT_HI20
:
6252 case R_NDS32_GOT_LO12
:
6253 case R_NDS32_GOT_LO15
:
6254 case R_NDS32_GOT_LO19
:
6255 case R_NDS32_GOT17S2_RELA
:
6256 case R_NDS32_GOT15S2_RELA
:
6257 case R_NDS32_GOTOFF
:
6258 case R_NDS32_GOTOFF_HI20
:
6259 case R_NDS32_GOTOFF_LO12
:
6260 case R_NDS32_GOTOFF_LO15
:
6261 case R_NDS32_GOTOFF_LO19
:
6263 case R_NDS32_GOTPC_HI20
:
6264 case R_NDS32_GOTPC_LO12
:
6265 case R_NDS32_GOTPC20
:
6268 if (h
->got
.refcount
> 0)
6273 if (local_got_refcounts
&& local_got_refcounts
[r_symndx
] > 0)
6274 local_got_refcounts
[r_symndx
]--;
6278 case R_NDS32_16_RELA
:
6279 case R_NDS32_20_RELA
:
6280 case R_NDS32_5_RELA
:
6281 case R_NDS32_32_RELA
:
6282 case R_NDS32_HI20_RELA
:
6283 case R_NDS32_LO12S3_RELA
:
6284 case R_NDS32_LO12S2_RELA
:
6285 case R_NDS32_LO12S2_DP_RELA
:
6286 case R_NDS32_LO12S2_SP_RELA
:
6287 case R_NDS32_LO12S1_RELA
:
6288 case R_NDS32_LO12S0_RELA
:
6289 case R_NDS32_LO12S0_ORI_RELA
:
6290 case R_NDS32_SDA16S3_RELA
:
6291 case R_NDS32_SDA17S2_RELA
:
6292 case R_NDS32_SDA18S1_RELA
:
6293 case R_NDS32_SDA19S0_RELA
:
6294 case R_NDS32_SDA15S3_RELA
:
6295 case R_NDS32_SDA15S2_RELA
:
6296 case R_NDS32_SDA12S2_DP_RELA
:
6297 case R_NDS32_SDA12S2_SP_RELA
:
6298 case R_NDS32_SDA15S1_RELA
:
6299 case R_NDS32_SDA15S0_RELA
:
6300 case R_NDS32_SDA_FP7U2_RELA
:
6301 case R_NDS32_15_PCREL_RELA
:
6302 case R_NDS32_17_PCREL_RELA
:
6303 case R_NDS32_25_PCREL_RELA
:
6306 struct elf_nds32_link_hash_entry
*eh
;
6307 struct elf_nds32_dyn_relocs
**pp
;
6308 struct elf_nds32_dyn_relocs
*p
;
6310 if (!bfd_link_pic (info
) && h
->plt
.refcount
> 0)
6311 h
->plt
.refcount
-= 1;
6313 eh
= (struct elf_nds32_link_hash_entry
*) h
;
6315 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
6318 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_15_PCREL_RELA
6319 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_17_PCREL_RELA
6320 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_25_PCREL_RELA
)
6330 case R_NDS32_9_PLTREL
:
6331 case R_NDS32_25_PLTREL
:
6334 if (h
->plt
.refcount
> 0)
6347 /* Look through the relocs for a section during the first phase.
6348 Since we don't do .gots or .plts, we just need to consider the
6349 virtual table relocs for gc. */
6352 nds32_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
6353 asection
*sec
, const Elf_Internal_Rela
*relocs
)
6355 Elf_Internal_Shdr
*symtab_hdr
;
6356 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
6357 const Elf_Internal_Rela
*rel
;
6358 const Elf_Internal_Rela
*rel_end
;
6359 struct elf_nds32_link_hash_table
*htab
;
6361 asection
*sreloc
= NULL
;
6363 if (bfd_link_relocatable (info
))
6366 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
6367 sym_hashes
= elf_sym_hashes (abfd
);
6369 sym_hashes
+ symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
);
6370 if (!elf_bad_symtab (abfd
))
6371 sym_hashes_end
-= symtab_hdr
->sh_info
;
6373 htab
= nds32_elf_hash_table (info
);
6374 dynobj
= htab
->root
.dynobj
;
6376 rel_end
= relocs
+ sec
->reloc_count
;
6377 for (rel
= relocs
; rel
< rel_end
; rel
++)
6379 enum elf_nds32_reloc_type r_type
;
6380 struct elf_link_hash_entry
*h
;
6381 unsigned long r_symndx
;
6382 int tls_type
, old_tls_type
;
6384 r_symndx
= ELF32_R_SYM (rel
->r_info
);
6385 r_type
= ELF32_R_TYPE (rel
->r_info
);
6386 if (r_symndx
< symtab_hdr
->sh_info
)
6390 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
6391 while (h
->root
.type
== bfd_link_hash_indirect
6392 || h
->root
.type
== bfd_link_hash_warning
)
6393 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
6396 /* Some relocs require a global offset table. We create
6397 got section here, since these relocation need got section
6398 and it is not created yet. */
6399 if (htab
->sgot
== NULL
)
6403 case R_NDS32_GOT_HI20
:
6404 case R_NDS32_GOT_LO12
:
6405 case R_NDS32_GOT_LO15
:
6406 case R_NDS32_GOT_LO19
:
6407 case R_NDS32_GOT17S2_RELA
:
6408 case R_NDS32_GOT15S2_RELA
:
6409 case R_NDS32_GOTOFF
:
6410 case R_NDS32_GOTOFF_HI20
:
6411 case R_NDS32_GOTOFF_LO12
:
6412 case R_NDS32_GOTOFF_LO15
:
6413 case R_NDS32_GOTOFF_LO19
:
6414 case R_NDS32_GOTPC20
:
6415 case R_NDS32_GOTPC_HI20
:
6416 case R_NDS32_GOTPC_LO12
:
6418 case R_NDS32_TLS_IE_HI20
:
6419 case R_NDS32_TLS_IE_LO12S2
:
6421 htab
->root
.dynobj
= dynobj
= abfd
;
6422 if (!create_got_section (dynobj
, info
))
6431 switch ((int) r_type
)
6433 case R_NDS32_GOT_HI20
:
6434 case R_NDS32_GOT_LO12
:
6435 case R_NDS32_GOT_LO15
:
6436 case R_NDS32_GOT_LO19
:
6438 case R_NDS32_TLS_IE_HI20
:
6439 case R_NDS32_TLS_IE_LO12S2
:
6442 case R_NDS32_TLS_IE_HI20
:
6443 case R_NDS32_TLS_IE_LO12S2
:
6444 tls_type
= GOT_TLS_IE
;
6447 tls_type
= GOT_NORMAL
;
6452 old_tls_type
= elf32_nds32_hash_entry (h
)->tls_type
;
6453 h
->got
.refcount
+= 1;
6457 bfd_signed_vma
*local_got_refcounts
;
6459 /* This is a global offset table entry for a local
6461 local_got_refcounts
= elf_local_got_refcounts (abfd
);
6462 if (local_got_refcounts
== NULL
)
6466 size
= symtab_hdr
->sh_info
;
6467 size
*= sizeof (bfd_signed_vma
);
6468 local_got_refcounts
= (bfd_signed_vma
*) bfd_zalloc (abfd
, size
);
6469 if (local_got_refcounts
== NULL
)
6471 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
6473 local_got_refcounts
[r_symndx
] += 1;
6474 old_tls_type
= elf32_nds32_local_got_tls_type (abfd
)[r_symndx
];
6477 /* We will already have issued an error message if there
6478 is a TLS/non-TLS mismatch, based on the symbol
6479 type. So just combine any TLS types needed. */
6480 if (old_tls_type
!= GOT_UNKNOWN
&& old_tls_type
!= GOT_NORMAL
6481 && tls_type
!= GOT_NORMAL
)
6482 tls_type
|= old_tls_type
;
6484 if (old_tls_type
!= tls_type
)
6487 elf32_nds32_hash_entry (h
)->tls_type
= tls_type
;
6489 elf32_nds32_local_got_tls_type (abfd
)[r_symndx
] = tls_type
;
6492 case R_NDS32_9_PLTREL
:
6493 case R_NDS32_25_PLTREL
:
6494 case R_NDS32_PLTREL_HI20
:
6495 case R_NDS32_PLTREL_LO12
:
6496 case R_NDS32_PLT_GOTREL_HI20
:
6497 case R_NDS32_PLT_GOTREL_LO12
:
6498 case R_NDS32_PLT_GOTREL_LO15
:
6499 case R_NDS32_PLT_GOTREL_LO19
:
6500 case R_NDS32_PLT_GOTREL_LO20
:
6502 /* This symbol requires a procedure linkage table entry. We
6503 actually build the entry in adjust_dynamic_symbol,
6504 because this might be a case of linking PIC code without
6505 linking in any dynamic objects, in which case we don't
6506 need to generate a procedure linkage table after all. */
6508 /* If this is a local symbol, we resolve it directly without
6509 creating a procedure linkage table entry. */
6513 if (h
->forced_local
)
6516 elf32_nds32_hash_entry (h
)->tls_type
= GOT_NORMAL
;
6518 h
->plt
.refcount
+= 1;
6521 case R_NDS32_16_RELA
:
6522 case R_NDS32_20_RELA
:
6523 case R_NDS32_5_RELA
:
6524 case R_NDS32_32_RELA
:
6525 case R_NDS32_HI20_RELA
:
6526 case R_NDS32_LO12S3_RELA
:
6527 case R_NDS32_LO12S2_RELA
:
6528 case R_NDS32_LO12S2_DP_RELA
:
6529 case R_NDS32_LO12S2_SP_RELA
:
6530 case R_NDS32_LO12S1_RELA
:
6531 case R_NDS32_LO12S0_RELA
:
6532 case R_NDS32_LO12S0_ORI_RELA
:
6533 case R_NDS32_SDA16S3_RELA
:
6534 case R_NDS32_SDA17S2_RELA
:
6535 case R_NDS32_SDA18S1_RELA
:
6536 case R_NDS32_SDA19S0_RELA
:
6537 case R_NDS32_SDA15S3_RELA
:
6538 case R_NDS32_SDA15S2_RELA
:
6539 case R_NDS32_SDA12S2_DP_RELA
:
6540 case R_NDS32_SDA12S2_SP_RELA
:
6541 case R_NDS32_SDA15S1_RELA
:
6542 case R_NDS32_SDA15S0_RELA
:
6543 case R_NDS32_SDA_FP7U2_RELA
:
6544 case R_NDS32_15_PCREL_RELA
:
6545 case R_NDS32_17_PCREL_RELA
:
6546 case R_NDS32_25_PCREL_RELA
:
6548 if (h
!= NULL
&& !bfd_link_pic (info
))
6551 h
->plt
.refcount
+= 1;
6554 /* If we are creating a shared library, and this is a reloc against
6555 a global symbol, or a non PC relative reloc against a local
6556 symbol, then we need to copy the reloc into the shared library.
6557 However, if we are linking with -Bsymbolic, we do not need to
6558 copy a reloc against a global symbol which is defined in an
6559 object we are including in the link (i.e., DEF_REGULAR is set).
6560 At this point we have not seen all the input files, so it is
6561 possible that DEF_REGULAR is not set now but will be set later
6562 (it is never cleared). We account for that possibility below by
6563 storing information in the dyn_relocs field of the hash table
6564 entry. A similar situation occurs when creating shared libraries
6565 and symbol visibility changes render the symbol local.
6567 If on the other hand, we are creating an executable, we may need
6568 to keep relocations for symbols satisfied by a dynamic library
6569 if we manage to avoid copy relocs for the symbol. */
6570 if ((bfd_link_pic (info
)
6571 && (sec
->flags
& SEC_ALLOC
) != 0
6572 && ((r_type
!= R_NDS32_25_PCREL_RELA
6573 && r_type
!= R_NDS32_15_PCREL_RELA
6574 && r_type
!= R_NDS32_17_PCREL_RELA
6575 && !(r_type
== R_NDS32_32_RELA
6576 && strcmp (sec
->name
, ".eh_frame") == 0))
6579 || h
->root
.type
== bfd_link_hash_defweak
6580 || !h
->def_regular
))))
6581 || (!bfd_link_pic (info
)
6582 && (sec
->flags
& SEC_ALLOC
) != 0
6584 && (h
->root
.type
== bfd_link_hash_defweak
6585 || !h
->def_regular
)))
6587 struct elf_nds32_dyn_relocs
*p
;
6588 struct elf_nds32_dyn_relocs
**head
;
6591 htab
->root
.dynobj
= dynobj
= abfd
;
6593 /* When creating a shared object, we must copy these
6594 relocs into the output file. We create a reloc
6595 section in dynobj and make room for the reloc. */
6600 name
= bfd_elf_string_from_elf_section
6601 (abfd
, elf_elfheader (abfd
)->e_shstrndx
,
6602 elf_section_data (sec
)->rela
.hdr
->sh_name
);
6606 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
6607 && strcmp (bfd_get_section_name (abfd
, sec
),
6610 sreloc
= bfd_get_section_by_name (dynobj
, name
);
6615 sreloc
= bfd_make_section (dynobj
, name
);
6616 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
6617 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
6618 if ((sec
->flags
& SEC_ALLOC
) != 0)
6619 flags
|= SEC_ALLOC
| SEC_LOAD
;
6621 || !bfd_set_section_flags (dynobj
, sreloc
, flags
)
6622 || !bfd_set_section_alignment (dynobj
, sreloc
, 2))
6625 elf_section_type (sreloc
) = SHT_RELA
;
6627 elf_section_data (sec
)->sreloc
= sreloc
;
6630 /* If this is a global symbol, we count the number of
6631 relocations we need for this symbol. */
6633 head
= &((struct elf_nds32_link_hash_entry
*) h
)->dyn_relocs
;
6639 Elf_Internal_Sym
*isym
;
6640 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
, abfd
, r_symndx
);
6644 /* Track dynamic relocs needed for local syms too. */
6645 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
6649 vpp
= &elf_section_data (s
)->local_dynrel
;
6650 head
= (struct elf_nds32_dyn_relocs
**) vpp
;
6654 if (p
== NULL
|| p
->sec
!= sec
)
6656 bfd_size_type amt
= sizeof (*p
);
6657 p
= (struct elf_nds32_dyn_relocs
*) bfd_alloc (dynobj
, amt
);
6668 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_25_PCREL_RELA
6669 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_15_PCREL_RELA
6670 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_17_PCREL_RELA
)
6675 /* This relocation describes the C++ object vtable hierarchy.
6676 Reconstruct it for later use during GC. */
6677 case R_NDS32_RELA_GNU_VTINHERIT
:
6678 case R_NDS32_GNU_VTINHERIT
:
6679 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
6683 /* This relocation describes which C++ vtable entries are actually
6684 used. Record for later use during GC. */
6685 case R_NDS32_GNU_VTENTRY
:
6686 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_offset
))
6689 case R_NDS32_RELA_GNU_VTENTRY
:
6690 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
6699 /* Write VAL in uleb128 format to P, returning a pointer to the
6701 This code is copied from elf-attr.c. */
6704 write_uleb128 (bfd_byte
*p
, unsigned int val
)
6719 static bfd_signed_vma
6720 calculate_offset (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
6721 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
,
6722 int *pic_ext_target
)
6724 bfd_signed_vma foff
;
6725 bfd_vma symval
, addend
;
6728 /* Get the value of the symbol referred to by the reloc. */
6729 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
6731 Elf_Internal_Sym
*isym
;
6733 /* A local symbol. */
6734 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
6736 if (isym
->st_shndx
== SHN_UNDEF
)
6737 sym_sec
= bfd_und_section_ptr
;
6738 else if (isym
->st_shndx
== SHN_ABS
)
6739 sym_sec
= bfd_abs_section_ptr
;
6740 else if (isym
->st_shndx
== SHN_COMMON
)
6741 sym_sec
= bfd_com_section_ptr
;
6743 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
6744 symval
= isym
->st_value
+ sym_sec
->output_section
->vma
6745 + sym_sec
->output_offset
;
6750 struct elf_link_hash_entry
*h
;
6753 /* An external symbol. */
6754 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
6755 h
= elf_sym_hashes (abfd
)[indx
];
6756 BFD_ASSERT (h
!= NULL
);
6758 if (h
->root
.type
!= bfd_link_hash_defined
6759 && h
->root
.type
!= bfd_link_hash_defweak
)
6760 /* This appears to be a reference to an undefined
6761 symbol. Just ignore it--it will be caught by the
6762 regular reloc processing. */
6764 owner
= h
->root
.u
.def
.section
->owner
;
6765 if (owner
&& (elf_elfheader (owner
)->e_flags
& E_NDS32_HAS_PIC
))
6766 *pic_ext_target
= 1;
6768 if (h
->root
.u
.def
.section
->flags
& SEC_MERGE
)
6770 sym_sec
= h
->root
.u
.def
.section
;
6771 symval
= _bfd_merged_section_offset (abfd
, &sym_sec
,
6772 elf_section_data (sym_sec
)->sec_info
,
6773 h
->root
.u
.def
.value
);
6774 symval
= symval
+ sym_sec
->output_section
->vma
6775 + sym_sec
->output_offset
;
6778 symval
= (h
->root
.u
.def
.value
6779 + h
->root
.u
.def
.section
->output_section
->vma
6780 + h
->root
.u
.def
.section
->output_offset
);
6783 addend
= irel
->r_addend
;
6785 foff
= (symval
+ addend
6786 - (irel
->r_offset
+ sec
->output_section
->vma
+ sec
->output_offset
));
6791 calculate_plt_memory_address (bfd
*abfd
, struct bfd_link_info
*link_info
,
6792 Elf_Internal_Sym
*isymbuf
,
6793 Elf_Internal_Rela
*irel
,
6794 Elf_Internal_Shdr
*symtab_hdr
)
6798 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
6800 Elf_Internal_Sym
*isym
;
6802 /* A local symbol. */
6803 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
6805 if (isym
->st_shndx
== SHN_UNDEF
)
6806 sym_sec
= bfd_und_section_ptr
;
6807 else if (isym
->st_shndx
== SHN_ABS
)
6808 sym_sec
= bfd_abs_section_ptr
;
6809 else if (isym
->st_shndx
== SHN_COMMON
)
6810 sym_sec
= bfd_com_section_ptr
;
6812 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
6813 symval
= isym
->st_value
+ sym_sec
->output_section
->vma
6814 + sym_sec
->output_offset
;
6819 struct elf_link_hash_entry
*h
;
6820 struct elf_nds32_link_hash_table
*htab
;
6823 /* An external symbol. */
6824 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
6825 h
= elf_sym_hashes (abfd
)[indx
];
6826 BFD_ASSERT (h
!= NULL
);
6827 htab
= nds32_elf_hash_table (link_info
);
6830 while (h
->root
.type
== bfd_link_hash_indirect
6831 || h
->root
.type
== bfd_link_hash_warning
)
6832 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
6834 if (h
->plt
.offset
== (bfd_vma
) - 1)
6836 if (h
->root
.type
!= bfd_link_hash_defined
6837 && h
->root
.type
!= bfd_link_hash_defweak
)
6838 /* This appears to be a reference to an undefined
6839 * symbol. Just ignore it--it will be caught by the
6840 * regular reloc processing. */
6842 symval
= (h
->root
.u
.def
.value
6843 + h
->root
.u
.def
.section
->output_section
->vma
6844 + h
->root
.u
.def
.section
->output_offset
);
6847 symval
= splt
->output_section
->vma
+ h
->plt
.offset
;
6853 static bfd_signed_vma
6854 calculate_plt_offset (bfd
*abfd
, asection
*sec
, struct bfd_link_info
*link_info
,
6855 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Rela
*irel
,
6856 Elf_Internal_Shdr
*symtab_hdr
)
6859 if ((foff
= calculate_plt_memory_address (abfd
, link_info
, isymbuf
, irel
,
6863 return foff
- (irel
->r_offset
6864 + sec
->output_section
->vma
+ sec
->output_offset
);
6867 /* Convert a 32-bit instruction to 16-bit one.
6868 INSN is the input 32-bit instruction, INSN16 is the output 16-bit
6869 instruction. If INSN_TYPE is not NULL, it the CGEN instruction
6870 type of INSN16. Return 1 if successful. */
6873 nds32_convert_32_to_16_alu1 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
6876 uint16_t insn16
= 0;
6878 unsigned long mach
= bfd_get_mach (abfd
);
6880 if (N32_SH5 (insn
) != 0)
6883 switch (N32_SUB5 (insn
))
6885 case N32_ALU1_ADD_SLLI
:
6886 case N32_ALU1_ADD_SRLI
:
6887 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IS_RB3 (insn
))
6889 insn16
= N16_TYPE333 (ADD333
, N32_RT5 (insn
), N32_RA5 (insn
),
6891 insn_type
= NDS32_INSN_ADD333
;
6893 else if (N32_IS_RT4 (insn
))
6895 if (N32_RT5 (insn
) == N32_RA5 (insn
))
6896 insn16
= N16_TYPE45 (ADD45
, N32_RT54 (insn
), N32_RB5 (insn
));
6897 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
6898 insn16
= N16_TYPE45 (ADD45
, N32_RT54 (insn
), N32_RA5 (insn
));
6899 insn_type
= NDS32_INSN_ADD45
;
6903 case N32_ALU1_SUB_SLLI
:
6904 case N32_ALU1_SUB_SRLI
:
6905 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IS_RB3 (insn
))
6907 insn16
= N16_TYPE333 (SUB333
, N32_RT5 (insn
), N32_RA5 (insn
),
6909 insn_type
= NDS32_INSN_SUB333
;
6911 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
6913 insn16
= N16_TYPE45 (SUB45
, N32_RT54 (insn
), N32_RB5 (insn
));
6914 insn_type
= NDS32_INSN_SUB45
;
6918 case N32_ALU1_AND_SLLI
:
6919 case N32_ALU1_AND_SRLI
:
6920 /* and $rt, $rt, $rb -> and33 for v3, v3m. */
6921 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
6922 && N32_IS_RB3 (insn
))
6924 if (N32_RT5 (insn
) == N32_RA5 (insn
))
6925 insn16
= N16_MISC33 (AND33
, N32_RT5 (insn
), N32_RB5 (insn
));
6926 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
6927 insn16
= N16_MISC33 (AND33
, N32_RT5 (insn
), N32_RA5 (insn
));
6929 insn_type
= NDS32_INSN_AND33
;
6933 case N32_ALU1_XOR_SLLI
:
6934 case N32_ALU1_XOR_SRLI
:
6935 /* xor $rt, $rt, $rb -> xor33 for v3, v3m. */
6936 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
6937 && N32_IS_RB3 (insn
))
6939 if (N32_RT5 (insn
) == N32_RA5 (insn
))
6940 insn16
= N16_MISC33 (XOR33
, N32_RT5 (insn
), N32_RB5 (insn
));
6941 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
6942 insn16
= N16_MISC33 (XOR33
, N32_RT5 (insn
), N32_RA5 (insn
));
6944 insn_type
= NDS32_INSN_XOR33
;
6948 case N32_ALU1_OR_SLLI
:
6949 case N32_ALU1_OR_SRLI
:
6950 /* or $rt, $rt, $rb -> or33 for v3, v3m. */
6951 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
6952 && N32_IS_RB3 (insn
))
6954 if (N32_RT5 (insn
) == N32_RA5 (insn
))
6955 insn16
= N16_MISC33 (OR33
, N32_RT5 (insn
), N32_RB5 (insn
));
6956 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
6957 insn16
= N16_MISC33 (OR33
, N32_RT5 (insn
), N32_RA5 (insn
));
6959 insn_type
= NDS32_INSN_OR33
;
6963 /* nor $rt, $ra, $ra -> not33 for v3, v3m. */
6964 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RB3 (insn
)
6965 && N32_RA5 (insn
) == N32_RB5 (insn
))
6967 insn16
= N16_MISC33 (NOT33
, N32_RT5 (insn
), N32_RA5 (insn
));
6968 insn_type
= NDS32_INSN_NOT33
;
6972 if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
6974 insn16
= N16_TYPE45 (SRAI45
, N32_RT54 (insn
), N32_UB5 (insn
));
6975 insn_type
= NDS32_INSN_SRAI45
;
6980 if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
6982 insn16
= N16_TYPE45 (SRLI45
, N32_RT54 (insn
), N32_UB5 (insn
));
6983 insn_type
= NDS32_INSN_SRLI45
;
6988 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_UB5 (insn
) < 8)
6990 insn16
= N16_TYPE333 (SLLI333
, N32_RT5 (insn
), N32_RA5 (insn
),
6992 insn_type
= NDS32_INSN_SLLI333
;
6997 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
6999 insn16
= N16_BFMI333 (ZEH33
, N32_RT5 (insn
), N32_RA5 (insn
));
7000 insn_type
= NDS32_INSN_ZEH33
;
7005 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7007 insn16
= N16_BFMI333 (SEB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7008 insn_type
= NDS32_INSN_SEB33
;
7013 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7015 insn16
= N16_BFMI333 (SEH33
, N32_RT5 (insn
), N32_RA5 (insn
));
7016 insn_type
= NDS32_INSN_SEH33
;
7021 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
))
7024 insn16
= N16_TYPE45 (SLT45
, N32_RA54 (insn
), N32_RB5 (insn
));
7025 insn_type
= NDS32_INSN_SLT45
;
7030 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
))
7033 insn16
= N16_TYPE45 (SLTS45
, N32_RA54 (insn
), N32_RB5 (insn
));
7034 insn_type
= NDS32_INSN_SLTS45
;
7039 if ((insn16
& 0x8000) == 0)
7045 *pinsn_type
= insn_type
;
7050 nds32_convert_32_to_16_alu2 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7053 uint16_t insn16
= 0;
7055 unsigned long mach
= bfd_get_mach (abfd
);
7057 /* TODO: bset, bclr, btgl, btst. */
7058 if (__GF (insn
, 6, 4) != 0)
7061 switch (N32_IMMU (insn
, 6))
7064 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7065 && N32_IS_RB3 (insn
))
7067 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7068 insn16
= N16_MISC33 (MUL33
, N32_RT5 (insn
), N32_RB5 (insn
));
7069 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7070 insn16
= N16_MISC33 (MUL33
, N32_RT5 (insn
), N32_RA5 (insn
));
7072 insn_type
= NDS32_INSN_MUL33
;
7076 if ((insn16
& 0x8000) == 0)
7082 *pinsn_type
= insn_type
;
7087 nds32_convert_32_to_16 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7091 uint16_t insn16
= 0;
7093 unsigned long mach
= bfd_get_mach (abfd
);
7095 /* Decode 32-bit instruction. */
7096 if (insn
& 0x80000000)
7098 /* Not 32-bit insn. */
7102 op6
= N32_OP6 (insn
);
7104 /* Convert it to 16-bit instruction. */
7108 if (IS_WITHIN_S (N32_IMM20S (insn
), 5))
7110 insn16
= N16_TYPE55 (MOVI55
, N32_RT5 (insn
), N32_IMM20S (insn
));
7111 insn_type
= NDS32_INSN_MOVI55
;
7113 else if (mach
>= MACH_V3
&& N32_IMM20S (insn
) >= 16
7114 && N32_IMM20S (insn
) < 48 && N32_IS_RT4 (insn
))
7116 insn16
= N16_TYPE45 (MOVPI45
, N32_RT54 (insn
),
7117 N32_IMM20S (insn
) - 16);
7118 insn_type
= NDS32_INSN_MOVPI45
;
7123 if (N32_IMM15S (insn
) == 0)
7125 /* Do not convert `addi $sp, $sp, 0' to `mov55 $sp, $sp',
7126 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7128 || N32_RT5 (insn
) != REG_SP
|| N32_RA5 (insn
) != REG_SP
)
7130 insn16
= N16_TYPE55 (MOV55
, N32_RT5 (insn
), N32_RA5 (insn
));
7131 insn_type
= NDS32_INSN_MOV55
;
7134 else if (N32_IMM15S (insn
) > 0)
7136 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) < 8)
7138 insn16
= N16_TYPE333 (ADDI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7140 insn_type
= NDS32_INSN_ADDI333
;
7142 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
)
7143 && N32_IMM15S (insn
) < 32)
7145 insn16
= N16_TYPE45 (ADDI45
, N32_RT54 (insn
), N32_IMM15S (insn
));
7146 insn_type
= NDS32_INSN_ADDI45
;
7148 else if (mach
>= MACH_V2
&& N32_RT5 (insn
) == REG_SP
7149 && N32_RT5 (insn
) == N32_RA5 (insn
)
7150 && N32_IMM15S (insn
) < 512)
7152 insn16
= N16_TYPE10 (ADDI10S
, N32_IMM15S (insn
));
7153 insn_type
= NDS32_INSN_ADDI10_SP
;
7155 else if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
)
7156 && N32_RA5 (insn
) == REG_SP
&& N32_IMM15S (insn
) < 256
7157 && (N32_IMM15S (insn
) % 4 == 0))
7159 insn16
= N16_TYPE36 (ADDRI36_SP
, N32_RT5 (insn
),
7160 N32_IMM15S (insn
) >> 2);
7161 insn_type
= NDS32_INSN_ADDRI36_SP
;
7167 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) > -8)
7169 insn16
= N16_TYPE333 (SUBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7170 0 - N32_IMM15S (insn
));
7171 insn_type
= NDS32_INSN_SUBI333
;
7173 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
)
7174 && N32_IMM15S (insn
) > -32)
7176 insn16
= N16_TYPE45 (SUBI45
, N32_RT54 (insn
),
7177 0 - N32_IMM15S (insn
));
7178 insn_type
= NDS32_INSN_SUBI45
;
7180 else if (mach
>= MACH_V2
&& N32_RT5 (insn
) == REG_SP
7181 && N32_RT5 (insn
) == N32_RA5 (insn
)
7182 && N32_IMM15S (insn
) >= -512)
7184 insn16
= N16_TYPE10 (ADDI10S
, N32_IMM15S (insn
));
7185 insn_type
= NDS32_INSN_ADDI10_SP
;
7191 if (N32_IMM15S (insn
) == 0)
7193 /* Do not convert `ori $sp, $sp, 0' to `mov55 $sp, $sp',
7194 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7196 || N32_RT5 (insn
) != REG_SP
|| N32_RA5 (insn
) != REG_SP
)
7198 insn16
= N16_TYPE55 (MOV55
, N32_RT5 (insn
), N32_RA5 (insn
));
7199 insn_type
= NDS32_INSN_MOV55
;
7205 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
)
7206 && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) == 0)
7208 insn16
= N16_MISC33 (NEG33
, N32_RT5 (insn
), N32_RA5 (insn
));
7209 insn_type
= NDS32_INSN_NEG33
;
7214 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7216 if (N32_IMM15U (insn
) == 1)
7218 insn16
= N16_BFMI333 (XLSB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7219 insn_type
= NDS32_INSN_XLSB33
;
7221 else if (N32_IMM15U (insn
) == 0x7ff)
7223 insn16
= N16_BFMI333 (X11B33
, N32_RT5 (insn
), N32_RA5 (insn
));
7224 insn_type
= NDS32_INSN_X11B33
;
7226 else if (N32_IMM15U (insn
) == 0xff)
7228 insn16
= N16_BFMI333 (ZEB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7229 insn_type
= NDS32_INSN_ZEB33
;
7231 else if (mach
>= MACH_V3
&& N32_RT5 (insn
) == N32_RA5 (insn
)
7232 && N32_IMM15U (insn
) < 256)
7234 int imm15u
= N32_IMM15U (insn
);
7236 if (__builtin_popcount (imm15u
) == 1)
7239 int imm3u
= __builtin_ctz (imm15u
);
7241 insn16
= N16_BFMI333 (BMSKI33
, N32_RT5 (insn
), imm3u
);
7242 insn_type
= NDS32_INSN_BMSKI33
;
7244 else if (imm15u
!= 0 && __builtin_popcount (imm15u
+ 1) == 1)
7247 int imm3u
= __builtin_ctz (imm15u
+ 1) - 1;
7249 insn16
= N16_BFMI333 (FEXTI33
, N32_RT5 (insn
), imm3u
);
7250 insn_type
= NDS32_INSN_FEXTI33
;
7257 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
)
7258 && IS_WITHIN_U (N32_IMM15S (insn
), 5))
7260 insn16
= N16_TYPE45 (SLTI45
, N32_RA54 (insn
), N32_IMM15S (insn
));
7261 insn_type
= NDS32_INSN_SLTI45
;
7266 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
)
7267 && IS_WITHIN_U (N32_IMM15S (insn
), 5))
7269 insn16
= N16_TYPE45 (SLTSI45
, N32_RA54 (insn
), N32_IMM15S (insn
));
7270 insn_type
= NDS32_INSN_SLTSI45
;
7275 if (N32_IS_RT4 (insn
) && N32_IMM15S (insn
) == 0)
7277 insn16
= N16_TYPE45 (LWI450
, N32_RT54 (insn
), N32_RA5 (insn
));
7278 insn_type
= NDS32_INSN_LWI450
;
7280 else if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7281 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7283 insn16
= N16_TYPE333 (LWI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7285 insn_type
= NDS32_INSN_LWI333
;
7287 else if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_FP
7288 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7290 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
7291 insn_type
= NDS32_INSN_LWI37
;
7293 else if (mach
>= MACH_V2
&& N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_SP
7294 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7296 insn16
= N16_TYPE37 (XWI37SP
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
7297 insn_type
= NDS32_INSN_LWI37_SP
;
7299 else if (mach
>= MACH_V2
&& N32_IS_RT4 (insn
) && N32_RA5 (insn
) == REG_R8
7300 && -32 <= N32_IMM15S (insn
) && N32_IMM15S (insn
) < 0)
7302 insn16
= N16_TYPE45 (LWI45_FE
, N32_RT54 (insn
),
7303 N32_IMM15S (insn
) + 32);
7304 insn_type
= NDS32_INSN_LWI45_FE
;
7309 if (N32_IS_RT4 (insn
) && N32_IMM15S (insn
) == 0)
7311 insn16
= N16_TYPE45 (SWI450
, N32_RT54 (insn
), N32_RA5 (insn
));
7312 insn_type
= NDS32_INSN_SWI450
;
7314 else if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7315 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7317 insn16
= N16_TYPE333 (SWI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7319 insn_type
= NDS32_INSN_SWI333
;
7321 else if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_FP
7322 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7324 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
7325 insn_type
= NDS32_INSN_SWI37
;
7327 else if (mach
>= MACH_V2
&& N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_SP
7328 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7330 insn16
= N16_TYPE37 (XWI37SP
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
7331 insn_type
= NDS32_INSN_SWI37_SP
;
7335 case N32_OP6_LWI_BI
:
7336 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7337 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7339 insn16
= N16_TYPE333 (LWI333_BI
, N32_RT5 (insn
), N32_RA5 (insn
),
7341 insn_type
= NDS32_INSN_LWI333_BI
;
7345 case N32_OP6_SWI_BI
:
7346 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7347 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7349 insn16
= N16_TYPE333 (SWI333_BI
, N32_RT5 (insn
), N32_RA5 (insn
),
7351 insn_type
= NDS32_INSN_SWI333_BI
;
7356 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7357 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7359 insn16
= N16_TYPE333 (LHI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7361 insn_type
= NDS32_INSN_LHI333
;
7366 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7367 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7369 insn16
= N16_TYPE333 (SHI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7371 insn_type
= NDS32_INSN_SHI333
;
7376 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7377 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7379 insn16
= N16_TYPE333 (LBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7381 insn_type
= NDS32_INSN_LBI333
;
7386 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7387 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7389 insn16
= N16_TYPE333 (SBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7391 insn_type
= NDS32_INSN_SBI333
;
7396 return nds32_convert_32_to_16_alu1 (abfd
, insn
, pinsn16
, pinsn_type
);
7399 return nds32_convert_32_to_16_alu2 (abfd
, insn
, pinsn16
, pinsn_type
);
7402 if (!IS_WITHIN_S (N32_IMM14S (insn
), 8))
7405 if ((insn
& __BIT (14)) == 0)
7408 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
7409 && N32_RT5 (insn
) != REG_R5
)
7410 insn16
= N16_TYPE38 (BEQS38
, N32_RT5 (insn
), N32_IMM14S (insn
));
7411 else if (N32_IS_RA3 (insn
) && N32_RT5 (insn
) == REG_R5
7412 && N32_RA5 (insn
) != REG_R5
)
7413 insn16
= N16_TYPE38 (BEQS38
, N32_RA5 (insn
), N32_IMM14S (insn
));
7414 insn_type
= NDS32_INSN_BEQS38
;
7420 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
7421 && N32_RT5 (insn
) != REG_R5
)
7422 insn16
= N16_TYPE38 (BNES38
, N32_RT5 (insn
), N32_IMM14S (insn
));
7423 else if (N32_IS_RA3 (insn
) && N32_RT5 (insn
) == REG_R5
7424 && N32_RA5 (insn
) != REG_R5
)
7425 insn16
= N16_TYPE38 (BNES38
, N32_RA5 (insn
), N32_IMM14S (insn
));
7426 insn_type
= NDS32_INSN_BNES38
;
7432 switch (N32_BR2_SUB (insn
))
7435 if (N32_IS_RT3 (insn
) && IS_WITHIN_S (N32_IMM16S (insn
), 8))
7437 insn16
= N16_TYPE38 (BEQZ38
, N32_RT5 (insn
), N32_IMM16S (insn
));
7438 insn_type
= NDS32_INSN_BEQZ38
;
7440 else if (N32_RT5 (insn
) == REG_R15
7441 && IS_WITHIN_S (N32_IMM16S (insn
), 8))
7443 insn16
= N16_TYPE8 (BEQZS8
, N32_IMM16S (insn
));
7444 insn_type
= NDS32_INSN_BEQZS8
;
7449 if (N32_IS_RT3 (insn
) && IS_WITHIN_S (N32_IMM16S (insn
), 8))
7451 insn16
= N16_TYPE38 (BNEZ38
, N32_RT5 (insn
), N32_IMM16S (insn
));
7452 insn_type
= NDS32_INSN_BNEZ38
;
7454 else if (N32_RT5 (insn
) == REG_R15
7455 && IS_WITHIN_S (N32_IMM16S (insn
), 8))
7457 insn16
= N16_TYPE8 (BNEZS8
, N32_IMM16S (insn
));
7458 insn_type
= NDS32_INSN_BNEZS8
;
7462 case N32_BR2_IFCALL
:
7463 if (IS_WITHIN_U (N32_IMM16S (insn
), 9))
7465 insn16
= N16_TYPE9 (IFCALL9
, N32_IMM16S (insn
));
7466 insn_type
= NDS32_INSN_IFCALL9
;
7473 if ((insn
& __BIT (24)) == 0)
7476 if (IS_WITHIN_S (N32_IMM24S (insn
), 8))
7478 insn16
= N16_TYPE8 (J8
, N32_IMM24S (insn
));
7479 insn_type
= NDS32_INSN_J8
;
7485 if (__GF (insn
, 8, 2) != 0)
7488 switch (N32_IMMU (insn
, 5))
7491 if (N32_JREG_HINT (insn
) == 0)
7494 insn16
= N16_TYPE5 (JR5
, N32_RB5 (insn
));
7495 insn_type
= NDS32_INSN_JR5
;
7497 else if (N32_JREG_HINT (insn
) == 1)
7500 insn16
= N16_TYPE5 (RET5
, N32_RB5 (insn
));
7501 insn_type
= NDS32_INSN_RET5
;
7503 else if (N32_JREG_HINT (insn
) == 3)
7505 /* ifret = mov55 $sp, $sp */
7506 insn16
= N16_TYPE55 (MOV55
, REG_SP
, REG_SP
);
7507 insn_type
= NDS32_INSN_IFRET
;
7512 /* It's convertible when return rt5 is $lp and address
7513 translation is kept. */
7514 if (N32_RT5 (insn
) == REG_LP
&& N32_JREG_HINT (insn
) == 0)
7516 insn16
= N16_TYPE5 (JRAL5
, N32_RB5 (insn
));
7517 insn_type
= NDS32_INSN_JRAL5
;
7524 if (N32_SUB5 (insn
) == N32_MISC_BREAK
&& N32_SWID (insn
) < 32)
7526 /* For v3, swid above 31 are used for ex9.it. */
7527 insn16
= N16_TYPE5 (BREAK16
, N32_SWID (insn
));
7528 insn_type
= NDS32_INSN_BREAK16
;
7533 /* This instruction has no 16-bit variant. */
7538 /* Bit-15 of insn16 should be set for a valid instruction. */
7539 if ((insn16
& 0x8000) == 0)
7545 *pinsn_type
= insn_type
;
7550 special_convert_32_to_16 (unsigned long insn
, uint16_t *pinsn16
,
7551 Elf_Internal_Rela
*reloc
)
7553 uint16_t insn16
= 0;
7555 if ((reloc
->r_addend
& R_NDS32_INSN16_FP7U2_FLAG
) == 0
7556 || (ELF32_R_TYPE (reloc
->r_info
) != R_NDS32_INSN16
))
7559 if (!N32_IS_RT3 (insn
))
7562 switch (N32_OP6 (insn
))
7565 if (N32_RA5 (insn
) == REG_GP
&& IS_WITHIN_U (N32_IMM15S (insn
), 7))
7566 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
7569 if (N32_RA5 (insn
) == REG_GP
&& IS_WITHIN_U (N32_IMM15S (insn
), 7))
7570 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
7573 if (!IS_WITHIN_U (N32_IMM17S (insn
), 7))
7576 if (__GF (insn
, 17, 3) == 6)
7577 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM17S (insn
));
7578 else if (__GF (insn
, 17, 3) == 7)
7579 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM17S (insn
));
7583 if ((insn16
& 0x8000) == 0)
7590 /* Convert a 16-bit instruction to 32-bit one.
7591 INSN16 it the input and PINSN it the point to output.
7592 Return non-zero on successful. Otherwise 0 is returned. */
7595 nds32_convert_16_to_32 (bfd
*abfd
, uint16_t insn16
, uint32_t *pinsn
)
7597 uint32_t insn
= 0xffffffff;
7598 unsigned long mach
= bfd_get_mach (abfd
);
7600 /* NOTE: push25, pop25 and movd44 do not have 32-bit variants. */
7602 switch (__GF (insn16
, 9, 6))
7604 case 0x4: /* add45 */
7605 insn
= N32_ALU1 (ADD
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7608 case 0x5: /* sub45 */
7609 insn
= N32_ALU1 (SUB
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7612 case 0x6: /* addi45 */
7613 insn
= N32_TYPE2 (ADDI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7614 N16_IMM5U (insn16
));
7616 case 0x7: /* subi45 */
7617 insn
= N32_TYPE2 (ADDI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7618 -N16_IMM5U (insn16
));
7620 case 0x8: /* srai45 */
7621 insn
= N32_ALU1 (SRAI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7622 N16_IMM5U (insn16
));
7624 case 0x9: /* srli45 */
7625 insn
= N32_ALU1 (SRLI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7626 N16_IMM5U (insn16
));
7628 case 0xa: /* slli333 */
7629 insn
= N32_ALU1 (SLLI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7630 N16_IMM3U (insn16
));
7632 case 0xc: /* add333 */
7633 insn
= N32_ALU1 (ADD
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7636 case 0xd: /* sub333 */
7637 insn
= N32_ALU1 (SUB
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7640 case 0xe: /* addi333 */
7641 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7642 N16_IMM3U (insn16
));
7644 case 0xf: /* subi333 */
7645 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7646 -N16_IMM3U (insn16
));
7648 case 0x10: /* lwi333 */
7649 insn
= N32_TYPE2 (LWI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7650 N16_IMM3U (insn16
));
7652 case 0x12: /* lhi333 */
7653 insn
= N32_TYPE2 (LHI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7654 N16_IMM3U (insn16
));
7656 case 0x13: /* lbi333 */
7657 insn
= N32_TYPE2 (LBI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7658 N16_IMM3U (insn16
));
7660 case 0x11: /* lwi333.bi */
7661 insn
= N32_TYPE2 (LWI_BI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7662 N16_IMM3U (insn16
));
7664 case 0x14: /* swi333 */
7665 insn
= N32_TYPE2 (SWI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7666 N16_IMM3U (insn16
));
7668 case 0x16: /* shi333 */
7669 insn
= N32_TYPE2 (SHI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7670 N16_IMM3U (insn16
));
7672 case 0x17: /* sbi333 */
7673 insn
= N32_TYPE2 (SBI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7674 N16_IMM3U (insn16
));
7676 case 0x15: /* swi333.bi */
7677 insn
= N32_TYPE2 (SWI_BI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7678 N16_IMM3U (insn16
));
7680 case 0x18: /* addri36.sp */
7681 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), REG_SP
,
7682 N16_IMM6U (insn16
) << 2);
7684 case 0x19: /* lwi45.fe */
7685 insn
= N32_TYPE2 (LWI
, N16_RT4 (insn16
), REG_R8
,
7686 (N16_IMM5U (insn16
) - 32));
7688 case 0x1a: /* lwi450 */
7689 insn
= N32_TYPE2 (LWI
, N16_RT4 (insn16
), N16_RA5 (insn16
), 0);
7691 case 0x1b: /* swi450 */
7692 insn
= N32_TYPE2 (SWI
, N16_RT4 (insn16
), N16_RA5 (insn16
), 0);
7695 /* These are r15 implied instructions. */
7696 case 0x30: /* slts45 */
7697 insn
= N32_ALU1 (SLTS
, REG_TA
, N16_RT4 (insn16
), N16_RA5 (insn16
));
7699 case 0x31: /* slt45 */
7700 insn
= N32_ALU1 (SLT
, REG_TA
, N16_RT4 (insn16
), N16_RA5 (insn16
));
7702 case 0x32: /* sltsi45 */
7703 insn
= N32_TYPE2 (SLTSI
, REG_TA
, N16_RT4 (insn16
), N16_IMM5U (insn16
));
7705 case 0x33: /* slti45 */
7706 insn
= N32_TYPE2 (SLTI
, REG_TA
, N16_RT4 (insn16
), N16_IMM5U (insn16
));
7708 case 0x34: /* beqzs8, bnezs8 */
7709 if (insn16
& __BIT (8))
7710 insn
= N32_BR2 (BNEZ
, REG_TA
, N16_IMM8S (insn16
));
7712 insn
= N32_BR2 (BEQZ
, REG_TA
, N16_IMM8S (insn16
));
7715 case 0x35: /* break16, ex9.it */
7716 /* Only consider range of v3 break16. */
7717 insn
= N32_TYPE0 (MISC
, (N16_IMM5U (insn16
) << 5) | N32_MISC_BREAK
);
7720 case 0x3c: /* ifcall9 */
7721 insn
= N32_BR2 (IFCALL
, 0, N16_IMM9U (insn16
));
7723 case 0x3d: /* movpi45 */
7724 insn
= N32_TYPE1 (MOVI
, N16_RT4 (insn16
), N16_IMM5U (insn16
) + 16);
7727 case 0x3f: /* MISC33 */
7728 switch (insn16
& 0x7)
7731 insn
= N32_TYPE2 (SUBRI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
7734 insn
= N32_ALU1 (NOR
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7738 insn
= N32_ALU2 (MUL
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7742 insn
= N32_ALU1 (XOR
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7746 insn
= N32_ALU1 (AND
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7750 insn
= N32_ALU1 (OR
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7757 switch (insn16
& 0x7)
7760 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0xff);
7763 insn
= N32_ALU1 (ZEH
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
7766 insn
= N32_ALU1 (SEB
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
7769 insn
= N32_ALU1 (SEH
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
7771 case 4: /* xlsb33 */
7772 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 1);
7774 case 5: /* x11b33 */
7775 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0x7ff);
7777 case 6: /* bmski33 */
7778 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7779 1 << __GF (insn16
, 3, 3));
7781 case 7: /* fexti33 */
7782 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7783 (1 << (__GF (insn16
, 3, 3) + 1)) - 1);
7789 switch (__GF (insn16
, 10, 5))
7791 case 0x0: /* mov55 or ifret16 */
7792 if (mach
>= MACH_V3
&& N16_RT5 (insn16
) == REG_SP
7793 && N16_RT5 (insn16
) == N16_RA5 (insn16
))
7794 insn
= N32_JREG (JR
, 0, 0, 0, 3);
7796 insn
= N32_TYPE2 (ADDI
, N16_RT5 (insn16
), N16_RA5 (insn16
), 0);
7798 case 0x1: /* movi55 */
7799 insn
= N32_TYPE1 (MOVI
, N16_RT5 (insn16
), N16_IMM5S (insn16
));
7801 case 0x1b: /* addi10s (V2) */
7802 insn
= N32_TYPE2 (ADDI
, REG_SP
, REG_SP
, N16_IMM10S (insn16
));
7806 switch (__GF (insn16
, 11, 4))
7808 case 0x7: /* lwi37.fp/swi37.fp */
7809 if (insn16
& __BIT (7)) /* swi37.fp */
7810 insn
= N32_TYPE2 (SWI
, N16_RT38 (insn16
), REG_FP
, N16_IMM7U (insn16
));
7812 insn
= N32_TYPE2 (LWI
, N16_RT38 (insn16
), REG_FP
, N16_IMM7U (insn16
));
7814 case 0x8: /* beqz38 */
7815 insn
= N32_BR2 (BEQZ
, N16_RT38 (insn16
), N16_IMM8S (insn16
));
7817 case 0x9: /* bnez38 */
7818 insn
= N32_BR2 (BNEZ
, N16_RT38 (insn16
), N16_IMM8S (insn16
));
7820 case 0xa: /* beqs38/j8, implied r5 */
7821 if (N16_RT38 (insn16
) == 5)
7822 insn
= N32_JI (J
, N16_IMM8S (insn16
));
7824 insn
= N32_BR1 (BEQ
, N16_RT38 (insn16
), REG_R5
, N16_IMM8S (insn16
));
7826 case 0xb: /* bnes38 and others */
7827 if (N16_RT38 (insn16
) == 5)
7829 switch (__GF (insn16
, 5, 3))
7832 insn
= N32_JREG (JR
, 0, N16_RA5 (insn16
), 0, 0);
7835 insn
= N32_JREG (JR
, 0, N16_RA5 (insn16
), 0, 1);
7838 insn
= N32_JREG (JRAL
, REG_LP
, N16_RA5 (insn16
), 0, 0);
7840 case 2: /* ex9.it imm5 */
7841 /* ex9.it had no 32-bit variantl. */
7843 case 5: /* add5.pc */
7844 /* add5.pc had no 32-bit variantl. */
7849 insn
= N32_BR1 (BNE
, N16_RT38 (insn16
), REG_R5
, N16_IMM8S (insn16
));
7851 case 0xe: /* lwi37/swi37 */
7852 if (insn16
& (1 << 7)) /* swi37.sp */
7853 insn
= N32_TYPE2 (SWI
, N16_RT38 (insn16
), REG_SP
, N16_IMM7U (insn16
));
7855 insn
= N32_TYPE2 (LWI
, N16_RT38 (insn16
), REG_SP
, N16_IMM7U (insn16
));
7860 if (insn
& 0x80000000)
7869 is_sda_access_insn (unsigned long insn
)
7871 switch (N32_OP6 (insn
))
7892 static unsigned long
7893 turn_insn_to_sda_access (uint32_t insn
, bfd_signed_vma type
, uint32_t *pinsn
)
7899 case R_NDS32_GOT_LO12
:
7900 case R_NDS32_GOTOFF_LO12
:
7901 case R_NDS32_PLTREL_LO12
:
7902 case R_NDS32_PLT_GOTREL_LO12
:
7903 case R_NDS32_LO12S0_RELA
:
7904 switch (N32_OP6 (insn
))
7908 oinsn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), 0);
7912 oinsn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), __BIT (19));
7916 oinsn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), 0);
7920 oinsn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), __BIT (19));
7925 case R_NDS32_LO12S1_RELA
:
7926 switch (N32_OP6 (insn
))
7930 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), 0);
7934 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __BIT (18));
7938 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __BIT (19));
7943 case R_NDS32_LO12S2_RELA
:
7944 switch (N32_OP6 (insn
))
7948 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (6, 17, 3));
7952 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (7, 17, 3));
7957 case R_NDS32_LO12S2_DP_RELA
:
7958 case R_NDS32_LO12S2_SP_RELA
:
7959 oinsn
= (insn
& 0x7ff07000) | (REG_GP
<< 15);
7969 /* Linker hasn't found the correct merge section for non-section symbol
7970 in relax time, this work is left to the function elf_link_input_bfd().
7971 So for non-section symbol, _bfd_merged_section_offset is also needed
7972 to find the correct symbol address. */
7975 nds32_elf_rela_local_sym (bfd
*abfd
, Elf_Internal_Sym
*sym
,
7976 asection
**psec
, Elf_Internal_Rela
*rel
)
7978 asection
*sec
= *psec
;
7981 relocation
= (sec
->output_section
->vma
7982 + sec
->output_offset
+ sym
->st_value
);
7983 if ((sec
->flags
& SEC_MERGE
) && sec
->sec_info_type
== SEC_INFO_TYPE_MERGE
)
7985 if (ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
7987 _bfd_merged_section_offset (abfd
, psec
,
7988 elf_section_data (sec
)->sec_info
,
7989 sym
->st_value
+ rel
->r_addend
);
7992 _bfd_merged_section_offset (abfd
, psec
,
7993 elf_section_data (sec
)->sec_info
,
7994 sym
->st_value
) + rel
->r_addend
;
7998 /* If we have changed the section, and our original section is
7999 marked with SEC_EXCLUDE, it means that the original
8000 SEC_MERGE section has been completely subsumed in some
8001 other SEC_MERGE section. In this case, we need to leave
8002 some info around for --emit-relocs. */
8003 if ((sec
->flags
& SEC_EXCLUDE
) != 0)
8004 sec
->kept_section
= *psec
;
8007 rel
->r_addend
-= relocation
;
8008 rel
->r_addend
+= sec
->output_section
->vma
+ sec
->output_offset
;
8014 calculate_memory_address (bfd
*abfd
, Elf_Internal_Rela
*irel
,
8015 Elf_Internal_Sym
*isymbuf
,
8016 Elf_Internal_Shdr
*symtab_hdr
)
8018 bfd_signed_vma foff
;
8019 bfd_vma symval
, addend
;
8020 Elf_Internal_Rela irel_fn
;
8021 Elf_Internal_Sym
*isym
;
8024 /* Get the value of the symbol referred to by the reloc. */
8025 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
8027 /* A local symbol. */
8028 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
8030 if (isym
->st_shndx
== SHN_UNDEF
)
8031 sym_sec
= bfd_und_section_ptr
;
8032 else if (isym
->st_shndx
== SHN_ABS
)
8033 sym_sec
= bfd_abs_section_ptr
;
8034 else if (isym
->st_shndx
== SHN_COMMON
)
8035 sym_sec
= bfd_com_section_ptr
;
8037 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
8038 memcpy (&irel_fn
, irel
, sizeof (Elf_Internal_Rela
));
8039 symval
= nds32_elf_rela_local_sym (abfd
, isym
, &sym_sec
, &irel_fn
);
8040 addend
= irel_fn
.r_addend
;
8045 struct elf_link_hash_entry
*h
;
8047 /* An external symbol. */
8048 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
8049 h
= elf_sym_hashes (abfd
)[indx
];
8050 BFD_ASSERT (h
!= NULL
);
8052 while (h
->root
.type
== bfd_link_hash_indirect
8053 || h
->root
.type
== bfd_link_hash_warning
)
8054 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
8056 if (h
->root
.type
!= bfd_link_hash_defined
8057 && h
->root
.type
!= bfd_link_hash_defweak
)
8058 /* This appears to be a reference to an undefined
8059 symbol. Just ignore it--it will be caught by the
8060 regular reloc processing. */
8063 if (h
->root
.u
.def
.section
->flags
& SEC_MERGE
)
8065 sym_sec
= h
->root
.u
.def
.section
;
8066 symval
= _bfd_merged_section_offset (abfd
, &sym_sec
, elf_section_data
8067 (sym_sec
)->sec_info
, h
->root
.u
.def
.value
);
8068 symval
= symval
+ sym_sec
->output_section
->vma
8069 + sym_sec
->output_offset
;
8072 symval
= (h
->root
.u
.def
.value
8073 + h
->root
.u
.def
.section
->output_section
->vma
8074 + h
->root
.u
.def
.section
->output_offset
);
8075 addend
= irel
->r_addend
;
8078 foff
= symval
+ addend
;
8084 calculate_got_memory_address (bfd
*abfd
, struct bfd_link_info
*link_info
,
8085 Elf_Internal_Rela
*irel
,
8086 Elf_Internal_Shdr
*symtab_hdr
)
8089 bfd_vma
*local_got_offsets
;
8090 /* Get the value of the symbol referred to by the reloc. */
8091 struct elf_link_hash_entry
*h
;
8092 struct elf_nds32_link_hash_table
*htab
= nds32_elf_hash_table (link_info
);
8094 /* An external symbol. */
8095 symndx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
8096 h
= elf_sym_hashes (abfd
)[symndx
];
8097 while (h
->root
.type
== bfd_link_hash_indirect
8098 || h
->root
.type
== bfd_link_hash_warning
)
8099 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
8103 BFD_ASSERT (h
!= NULL
);
8104 return htab
->sgot
->output_section
->vma
+ htab
->sgot
->output_offset
8109 local_got_offsets
= elf_local_got_offsets (abfd
);
8110 BFD_ASSERT (local_got_offsets
!= NULL
);
8111 return htab
->sgot
->output_section
->vma
+ htab
->sgot
->output_offset
8112 + local_got_offsets
[ELF32_R_SYM (irel
->r_info
)];
8115 /* The _GLOBAL_OFFSET_TABLE_ may be undefweak(or should be?). */
8116 /* The check of h->root.type is passed. */
8120 is_16bit_NOP (bfd
*abfd ATTRIBUTE_UNUSED
,
8121 asection
*sec
, Elf_Internal_Rela
*rel
)
8124 unsigned short insn16
;
8126 if (!(rel
->r_addend
& R_NDS32_INSN16_CONVERT_FLAG
))
8128 contents
= elf_section_data (sec
)->this_hdr
.contents
;
8129 insn16
= bfd_getb16 (contents
+ rel
->r_offset
);
8130 if (insn16
== NDS32_NOP16
)
8135 /* It checks whether the instruction could be converted to
8136 16-bit form and returns the converted one.
8138 `internal_relocs' is supposed to be sorted. */
8141 is_convert_32_to_16 (bfd
*abfd
, asection
*sec
,
8142 Elf_Internal_Rela
*reloc
,
8143 Elf_Internal_Rela
*internal_relocs
,
8144 Elf_Internal_Rela
*irelend
,
8147 #define NORMAL_32_TO_16 (1 << 0)
8148 #define SPECIAL_32_TO_16 (1 << 1)
8149 bfd_byte
*contents
= NULL
;
8153 Elf_Internal_Rela
*pc_rel
;
8154 int pic_ext_target
= 0;
8155 Elf_Internal_Shdr
*symtab_hdr
;
8156 Elf_Internal_Sym
*isymbuf
= NULL
;
8160 if (reloc
->r_offset
+ 4 > sec
->size
)
8163 offset
= reloc
->r_offset
;
8165 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
))
8167 insn
= bfd_getb32 (contents
+ offset
);
8169 if (nds32_convert_32_to_16 (abfd
, insn
, insn16
, NULL
))
8170 convert_type
= NORMAL_32_TO_16
;
8171 else if (special_convert_32_to_16 (insn
, insn16
, reloc
))
8172 convert_type
= SPECIAL_32_TO_16
;
8176 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
8177 if (!nds32_get_local_syms (abfd
, sec
, &isymbuf
))
8180 /* Find the first relocation of the same relocation-type,
8181 so we iteratie them forward. */
8183 while ((pc_rel
- 1) >= internal_relocs
&& pc_rel
[-1].r_offset
== offset
)
8186 for (; pc_rel
< irelend
&& pc_rel
->r_offset
== offset
; pc_rel
++)
8188 if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_15_PCREL_RELA
8189 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17_PCREL_RELA
8190 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PCREL_RELA
8191 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PLTREL
)
8193 off
= calculate_offset (abfd
, sec
, pc_rel
, isymbuf
, symtab_hdr
,
8195 if (off
>= ACCURATE_8BIT_S1
|| off
< -ACCURATE_8BIT_S1
8200 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_20_RELA
)
8202 /* movi => movi55 */
8203 mem_addr
= calculate_memory_address (abfd
, pc_rel
, isymbuf
,
8205 /* mem_addr is unsigned, but the value should
8206 be between [-16, 15]. */
8207 if ((mem_addr
+ 0x10) >> 5)
8211 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_TLS_LE_20
)
8212 || (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_TLS_LE_LO12
))
8214 /* It never happen movi to movi55 for R_NDS32_TLS_LE_20,
8215 because it can be relaxed to addi for TLS_LE_ADD. */
8218 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA15S2_RELA
8219 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA17S2_RELA
)
8220 && (reloc
->r_addend
& R_NDS32_INSN16_FP7U2_FLAG
)
8221 && convert_type
== SPECIAL_32_TO_16
)
8224 We've selected a best fp-base for this access, so we can
8225 always resolve it anyway. Do nothing. */
8228 else if ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_NONE
8229 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_RELA_GNU_VTINHERIT
))
8230 || ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_RELA_GNU_VTENTRY
)
8231 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_INSN16
))
8232 || ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_LOADSTORE
)
8233 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_DWARF2_OP1_RELA
)))
8235 /* Prevent unresolved addi instruction translate
8236 to addi45 or addi333. */
8239 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
))
8241 off
= calculate_offset (abfd
, sec
, pc_rel
, isymbuf
, symtab_hdr
,
8243 if (off
>= ACCURATE_U9BIT_S1
|| off
<= 0)
8253 nds32_elf_write_16 (bfd
*abfd ATTRIBUTE_UNUSED
, bfd_byte
*contents
,
8254 Elf_Internal_Rela
*reloc
,
8255 Elf_Internal_Rela
*internal_relocs
,
8256 Elf_Internal_Rela
*irelend
,
8257 unsigned short insn16
)
8259 Elf_Internal_Rela
*pc_rel
;
8262 offset
= reloc
->r_offset
;
8263 bfd_putb16 (insn16
, contents
+ offset
);
8264 /* Find the first relocation of the same relocation-type,
8265 so we iteratie them forward. */
8267 while ((pc_rel
- 1) > internal_relocs
&& pc_rel
[-1].r_offset
== offset
)
8270 for (; pc_rel
< irelend
&& pc_rel
->r_offset
== offset
; pc_rel
++)
8272 if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_15_PCREL_RELA
8273 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17_PCREL_RELA
8274 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PCREL_RELA
)
8277 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_9_PCREL_RELA
);
8279 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PLTREL
)
8281 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_9_PLTREL
);
8282 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_20_RELA
)
8284 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_5_RELA
);
8285 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA15S2_RELA
8286 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA17S2_RELA
)
8288 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_SDA_FP7U2_RELA
);
8289 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
))
8291 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_10IFCU_PCREL_RELA
);
8295 /* Find a relocation of type specified by `reloc_type'
8296 of the same r_offset with reloc.
8297 If not found, return irelend.
8299 Assuming relocations are sorted by r_offset,
8300 we find the relocation from `reloc' backward untill relocs,
8301 or find it from `reloc' forward untill irelend. */
8303 static Elf_Internal_Rela
*
8304 find_relocs_at_address (Elf_Internal_Rela
*reloc
,
8305 Elf_Internal_Rela
*relocs
,
8306 Elf_Internal_Rela
*irelend
,
8307 enum elf_nds32_reloc_type reloc_type
)
8309 Elf_Internal_Rela
*rel_t
;
8311 /* Find backward. */
8313 rel_t
>= relocs
&& rel_t
->r_offset
== reloc
->r_offset
;
8315 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8318 /* We didn't find it backward. Try find it forward. */
8320 rel_t
< irelend
&& rel_t
->r_offset
== reloc
->r_offset
;
8322 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8328 /* Find a relocation of specified type and offset.
8329 `reloc' is just a refence point to find a relocation at specified offset.
8330 If not found, return irelend.
8332 Assuming relocations are sorted by r_offset,
8333 we find the relocation from `reloc' backward untill relocs,
8334 or find it from `reloc' forward untill irelend. */
8336 static Elf_Internal_Rela
*
8337 find_relocs_at_address_addr (Elf_Internal_Rela
*reloc
,
8338 Elf_Internal_Rela
*relocs
,
8339 Elf_Internal_Rela
*irelend
,
8340 enum elf_nds32_reloc_type reloc_type
,
8343 Elf_Internal_Rela
*rel_t
= NULL
;
8345 /* First, we try to find a relocation of offset `offset_p',
8346 and then we use find_relocs_at_address to find specific type. */
8348 if (reloc
->r_offset
> offset_p
)
8350 /* Find backward. */
8352 rel_t
>= relocs
&& rel_t
->r_offset
> offset_p
; rel_t
--)
8355 else if (reloc
->r_offset
< offset_p
)
8359 rel_t
< irelend
&& rel_t
->r_offset
< offset_p
; rel_t
++)
8366 if (rel_t
< relocs
|| rel_t
== irelend
|| rel_t
->r_offset
!= offset_p
)
8369 return find_relocs_at_address (rel_t
, relocs
, irelend
, reloc_type
);
8373 nds32_elf_check_dup_relocs (Elf_Internal_Rela
*reloc
,
8374 Elf_Internal_Rela
*internal_relocs
,
8375 Elf_Internal_Rela
*irelend
,
8376 unsigned char reloc_type
)
8378 Elf_Internal_Rela
*rel_t
;
8381 rel_t
>= internal_relocs
&& rel_t
->r_offset
== reloc
->r_offset
;
8383 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8385 if (ELF32_R_SYM (rel_t
->r_info
) == ELF32_R_SYM (reloc
->r_info
)
8386 && rel_t
->r_addend
== reloc
->r_addend
)
8391 for (rel_t
= reloc
; rel_t
< irelend
&& rel_t
->r_offset
== reloc
->r_offset
;
8393 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8395 if (ELF32_R_SYM (rel_t
->r_info
) == ELF32_R_SYM (reloc
->r_info
)
8396 && rel_t
->r_addend
== reloc
->r_addend
)
8404 typedef struct nds32_elf_blank nds32_elf_blank_t
;
8405 struct nds32_elf_blank
8407 /* Where the blank begins. */
8409 /* The size of the blank. */
8411 /* The accumulative size before this blank. */
8413 nds32_elf_blank_t
*next
;
8414 nds32_elf_blank_t
*prev
;
8417 static nds32_elf_blank_t
*blank_free_list
= NULL
;
8419 static nds32_elf_blank_t
*
8420 create_nds32_elf_blank (bfd_vma offset_p
, bfd_vma size_p
)
8422 nds32_elf_blank_t
*blank_t
;
8424 if (blank_free_list
)
8426 blank_t
= blank_free_list
;
8427 blank_free_list
= blank_free_list
->next
;
8430 blank_t
= bfd_malloc (sizeof (nds32_elf_blank_t
));
8432 if (blank_t
== NULL
)
8435 blank_t
->offset
= offset_p
;
8436 blank_t
->size
= size_p
;
8437 blank_t
->total_size
= 0;
8438 blank_t
->next
= NULL
;
8439 blank_t
->prev
= NULL
;
8445 remove_nds32_elf_blank (nds32_elf_blank_t
*blank_p
)
8447 if (blank_free_list
)
8449 blank_free_list
->prev
= blank_p
;
8450 blank_p
->next
= blank_free_list
;
8453 blank_p
->next
= NULL
;
8455 blank_p
->prev
= NULL
;
8456 blank_free_list
= blank_p
;
8460 clean_nds32_elf_blank (void)
8462 nds32_elf_blank_t
*blank_t
;
8464 while (blank_free_list
)
8466 blank_t
= blank_free_list
;
8467 blank_free_list
= blank_free_list
->next
;
8472 static nds32_elf_blank_t
*
8473 search_nds32_elf_blank (nds32_elf_blank_t
*blank_p
, bfd_vma addr
)
8475 nds32_elf_blank_t
*blank_t
;
8481 while (blank_t
&& addr
< blank_t
->offset
)
8482 blank_t
= blank_t
->prev
;
8483 while (blank_t
&& blank_t
->next
&& addr
>= blank_t
->next
->offset
)
8484 blank_t
= blank_t
->next
;
8490 get_nds32_elf_blank_total (nds32_elf_blank_t
**blank_p
, bfd_vma addr
,
8493 nds32_elf_blank_t
*blank_t
;
8495 blank_t
= search_nds32_elf_blank (*blank_p
, addr
);
8502 if (addr
< blank_t
->offset
+ blank_t
->size
)
8503 return blank_t
->total_size
+ (addr
- blank_t
->offset
);
8505 return blank_t
->total_size
+ blank_t
->size
;
8509 insert_nds32_elf_blank (nds32_elf_blank_t
**blank_p
, bfd_vma addr
, bfd_vma len
)
8511 nds32_elf_blank_t
*blank_t
, *blank_t2
;
8515 *blank_p
= create_nds32_elf_blank (addr
, len
);
8516 return *blank_p
? TRUE
: FALSE
;
8519 blank_t
= search_nds32_elf_blank (*blank_p
, addr
);
8521 if (blank_t
== NULL
)
8523 blank_t
= create_nds32_elf_blank (addr
, len
);
8526 while ((*blank_p
)->prev
!= NULL
)
8527 *blank_p
= (*blank_p
)->prev
;
8528 blank_t
->next
= *blank_p
;
8529 (*blank_p
)->prev
= blank_t
;
8530 (*blank_p
) = blank_t
;
8534 if (addr
< blank_t
->offset
+ blank_t
->size
)
8536 if (addr
> blank_t
->offset
+ blank_t
->size
)
8537 blank_t
->size
= addr
- blank_t
->offset
;
8541 blank_t2
= create_nds32_elf_blank (addr
, len
);
8546 blank_t
->next
->prev
= blank_t2
;
8547 blank_t2
->next
= blank_t
->next
;
8549 blank_t2
->prev
= blank_t
;
8550 blank_t
->next
= blank_t2
;
8551 *blank_p
= blank_t2
;
8558 insert_nds32_elf_blank_recalc_total (nds32_elf_blank_t
**blank_p
, bfd_vma addr
,
8561 nds32_elf_blank_t
*blank_t
;
8563 if (!insert_nds32_elf_blank (blank_p
, addr
, len
))
8570 blank_t
->total_size
= 0;
8571 blank_t
= blank_t
->next
;
8576 blank_t
->total_size
= blank_t
->prev
->total_size
+ blank_t
->prev
->size
;
8577 blank_t
= blank_t
->next
;
8584 calc_nds32_blank_total (nds32_elf_blank_t
*blank_p
)
8586 nds32_elf_blank_t
*blank_t
;
8587 bfd_vma total_size
= 0;
8593 while (blank_t
->prev
)
8594 blank_t
= blank_t
->prev
;
8597 blank_t
->total_size
= total_size
;
8598 total_size
+= blank_t
->size
;
8599 blank_t
= blank_t
->next
;
8604 nds32_elf_relax_delete_blanks (bfd
*abfd
, asection
*sec
,
8605 nds32_elf_blank_t
*blank_p
)
8607 Elf_Internal_Shdr
*symtab_hdr
; /* Symbol table header of this bfd. */
8608 Elf_Internal_Sym
*isym
= NULL
; /* Symbol table of this bfd. */
8609 Elf_Internal_Sym
*isymend
; /* Symbol entry iterator. */
8610 unsigned int sec_shndx
; /* The section the be relaxed. */
8611 bfd_byte
*contents
; /* Contents data of iterating section. */
8612 Elf_Internal_Rela
*internal_relocs
;
8613 Elf_Internal_Rela
*irel
;
8614 Elf_Internal_Rela
*irelend
;
8615 struct elf_link_hash_entry
**sym_hashes
;
8616 struct elf_link_hash_entry
**end_hashes
;
8617 unsigned int symcount
;
8619 nds32_elf_blank_t
*blank_t
;
8620 nds32_elf_blank_t
*blank_t2
;
8621 nds32_elf_blank_t
*blank_head
;
8623 blank_head
= blank_t
= blank_p
;
8624 while (blank_head
->prev
!= NULL
)
8625 blank_head
= blank_head
->prev
;
8626 while (blank_t
->next
!= NULL
)
8627 blank_t
= blank_t
->next
;
8629 if (blank_t
->offset
+ blank_t
->size
<= sec
->size
)
8631 blank_t
->next
= create_nds32_elf_blank (sec
->size
+ 4, 0);
8632 blank_t
->next
->prev
= blank_t
;
8634 if (blank_head
->offset
> 0)
8636 blank_head
->prev
= create_nds32_elf_blank (0, 0);
8637 blank_head
->prev
->next
= blank_head
;
8638 blank_head
= blank_head
->prev
;
8641 sec_shndx
= _bfd_elf_section_from_bfd_section (abfd
, sec
);
8643 /* The deletion must stop at the next ALIGN reloc for an alignment
8644 power larger than the number of bytes we are deleting. */
8646 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
8647 if (!nds32_get_local_syms (abfd
, sec
, &isym
))
8652 isym
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
8653 symtab_hdr
->sh_info
, 0, NULL
, NULL
, NULL
);
8654 symtab_hdr
->contents
= (bfd_byte
*) isym
;
8657 if (isym
== NULL
|| symtab_hdr
->sh_info
== 0)
8660 blank_t
= blank_head
;
8661 calc_nds32_blank_total (blank_head
);
8663 for (sect
= abfd
->sections
; sect
!= NULL
; sect
= sect
->next
)
8665 /* Adjust all the relocs. */
8667 /* Relocations MUST be kept in memory, because relaxation adjust them. */
8668 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sect
, NULL
, NULL
,
8669 TRUE
/* keep_memory */);
8670 irelend
= internal_relocs
+ sect
->reloc_count
;
8672 blank_t
= blank_head
;
8673 blank_t2
= blank_head
;
8675 if (!(sect
->flags
& SEC_RELOC
))
8678 nds32_get_section_contents (abfd
, sect
, &contents
, TRUE
);
8680 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
8684 if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_DIFF8
8685 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_DIFF32
8686 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
)
8688 unsigned long val
= 0;
8690 long before
, between
;
8693 switch (ELF32_R_TYPE (irel
->r_info
))
8696 offset
= bfd_get_8 (abfd
, contents
+ irel
->r_offset
);
8698 case R_NDS32_DIFF16
:
8699 offset
= bfd_get_16 (abfd
, contents
+ irel
->r_offset
);
8701 case R_NDS32_DIFF32
:
8702 val
= bfd_get_32 (abfd
, contents
+ irel
->r_offset
);
8703 /* Get the signed bit and mask for the high part. The
8704 gcc will alarm when right shift 32-bit since the
8705 type size of long may be 32-bit. */
8706 mask
= 0 - (val
>> 31);
8708 offset
= (val
| (mask
- 0xffffffff));
8717 0 |encoded in location|
8718 |------------|-------------------|---------
8720 -- before ---| *****************
8721 --------------------- between ---|
8723 We only care how much data are relax between DIFF,
8726 before
= get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 0);
8727 between
= get_nds32_elf_blank_total (&blank_t
,
8728 irel
->r_addend
+ offset
, 0);
8729 if (between
== before
)
8730 goto done_adjust_diff
;
8732 switch (ELF32_R_TYPE (irel
->r_info
))
8735 bfd_put_8 (abfd
, offset
- (between
- before
),
8736 contents
+ irel
->r_offset
);
8738 case R_NDS32_DIFF16
:
8739 bfd_put_16 (abfd
, offset
- (between
- before
),
8740 contents
+ irel
->r_offset
);
8742 case R_NDS32_DIFF32
:
8743 bfd_put_32 (abfd
, offset
- (between
- before
),
8744 contents
+ irel
->r_offset
);
8748 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_DIFF_ULEB128
8749 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
)
8752 unsigned int len
= 0;
8753 unsigned long before
, between
;
8756 val
= read_unsigned_leb128 (abfd
, contents
+ irel
->r_offset
,
8759 before
= get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 0);
8760 between
= get_nds32_elf_blank_total (&blank_t
,
8761 irel
->r_addend
+ val
, 0);
8762 if (between
== before
)
8763 goto done_adjust_diff
;
8765 p
= contents
+ irel
->r_offset
;
8767 memset (p
, 0x80, len
);
8769 p
= write_uleb128 (p
, val
- (between
- before
)) - 1;
8777 raddr
= irel
->r_offset
;
8778 irel
->r_offset
-= get_nds32_elf_blank_total (&blank_t2
,
8781 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
)
8783 if (blank_t2
&& blank_t2
->next
8784 && (blank_t2
->offset
> raddr
8785 || blank_t2
->next
->offset
<= raddr
))
8787 (_("%B: Error: search_nds32_elf_blank reports wrong node\n"), abfd
);
8789 /* Mark reloc in deleted portion as NONE.
8790 For some relocs like R_NDS32_LABEL that doesn't modify the
8791 content in the section. R_NDS32_LABEL doesn't belong to the
8792 instruction in the section, so we should preserve it. */
8793 if (raddr
>= blank_t2
->offset
8794 && raddr
< blank_t2
->offset
+ blank_t2
->size
8795 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_LABEL
8796 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_BEGIN
8797 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_END
8798 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
8799 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_SUBTRAHEND
8800 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_MINUEND
)
8802 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
8808 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
8809 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
8810 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
)
8813 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
8814 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
8815 && ELF_ST_TYPE (isym
[ELF32_R_SYM (irel
->r_info
)].st_info
) == STT_SECTION
)
8817 if (irel
->r_addend
<= sec
->size
)
8819 get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 1);
8824 /* Adjust the local symbols defined in this section. */
8825 blank_t
= blank_head
;
8826 for (isymend
= isym
+ symtab_hdr
->sh_info
; isym
< isymend
; isym
++)
8828 if (isym
->st_shndx
== sec_shndx
)
8830 if (isym
->st_value
<= sec
->size
)
8833 bfd_vma orig_addr
= isym
->st_value
;
8835 ahead
= get_nds32_elf_blank_total (&blank_t
, isym
->st_value
, 1);
8836 isym
->st_value
-= ahead
;
8838 /* Adjust function size. */
8839 if (ELF32_ST_TYPE (isym
->st_info
) == STT_FUNC
8840 && isym
->st_size
> 0)
8842 get_nds32_elf_blank_total
8843 (&blank_t
, orig_addr
+ isym
->st_size
, 0) - ahead
;
8848 /* Now adjust the global symbols defined in this section. */
8849 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
8850 - symtab_hdr
->sh_info
);
8851 sym_hashes
= elf_sym_hashes (abfd
);
8852 end_hashes
= sym_hashes
+ symcount
;
8853 blank_t
= blank_head
;
8854 for (; sym_hashes
< end_hashes
; sym_hashes
++)
8856 struct elf_link_hash_entry
*sym_hash
= *sym_hashes
;
8858 if ((sym_hash
->root
.type
== bfd_link_hash_defined
8859 || sym_hash
->root
.type
== bfd_link_hash_defweak
)
8860 && sym_hash
->root
.u
.def
.section
== sec
)
8862 if (sym_hash
->root
.u
.def
.value
<= sec
->size
)
8865 bfd_vma orig_addr
= sym_hash
->root
.u
.def
.value
;
8867 ahead
= get_nds32_elf_blank_total (&blank_t
, sym_hash
->root
.u
.def
.value
, 1);
8868 sym_hash
->root
.u
.def
.value
-= ahead
;
8870 /* Adjust function size. */
8871 if (sym_hash
->type
== STT_FUNC
)
8873 get_nds32_elf_blank_total
8874 (&blank_t
, orig_addr
+ sym_hash
->size
, 0) - ahead
;
8880 contents
= elf_section_data (sec
)->this_hdr
.contents
;
8881 blank_t
= blank_head
;
8882 while (blank_t
->next
)
8884 /* Actually delete the bytes. */
8886 /* If current blank is the last blank overlap with current section,
8887 go to finish process. */
8888 if (sec
->size
<= (blank_t
->next
->offset
))
8891 memmove (contents
+ blank_t
->offset
- blank_t
->total_size
,
8892 contents
+ blank_t
->offset
+ blank_t
->size
,
8893 blank_t
->next
->offset
- (blank_t
->offset
+ blank_t
->size
));
8895 blank_t
= blank_t
->next
;
8898 if (sec
->size
> (blank_t
->offset
+ blank_t
->size
))
8900 /* There are remaining code between blank and section boundary.
8901 Move the remaining code to appropriate location. */
8902 memmove (contents
+ blank_t
->offset
- blank_t
->total_size
,
8903 contents
+ blank_t
->offset
+ blank_t
->size
,
8904 sec
->size
- (blank_t
->offset
+ blank_t
->size
));
8905 sec
->size
-= blank_t
->total_size
+ blank_t
->size
;
8908 /* This blank is not entirely included in the section,
8909 reduce the section size by only part of the blank size. */
8910 sec
->size
-= blank_t
->total_size
+ (sec
->size
- blank_t
->offset
);
8914 blank_t
= blank_head
;
8915 blank_head
= blank_head
->next
;
8916 remove_nds32_elf_blank (blank_t
);
8922 /* Get the contents of a section. */
8925 nds32_get_section_contents (bfd
*abfd
, asection
*sec
,
8926 bfd_byte
**contents_p
, bfd_boolean cache
)
8928 /* Get the section contents. */
8929 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
8930 *contents_p
= elf_section_data (sec
)->this_hdr
.contents
;
8933 if (!bfd_malloc_and_get_section (abfd
, sec
, contents_p
))
8936 elf_section_data (sec
)->this_hdr
.contents
= *contents_p
;
8942 /* Get the contents of the internal symbol of abfd. */
8945 nds32_get_local_syms (bfd
*abfd
, asection
*sec ATTRIBUTE_UNUSED
,
8946 Elf_Internal_Sym
**isymbuf_p
)
8948 Elf_Internal_Shdr
*symtab_hdr
;
8949 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
8951 /* Read this BFD's local symbols if we haven't done so already. */
8952 if (*isymbuf_p
== NULL
&& symtab_hdr
->sh_info
!= 0)
8954 *isymbuf_p
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
8955 if (*isymbuf_p
== NULL
)
8957 *isymbuf_p
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
8958 symtab_hdr
->sh_info
, 0,
8960 if (*isymbuf_p
== NULL
)
8964 symtab_hdr
->contents
= (bfd_byte
*) (*isymbuf_p
);
8969 /* Range of small data. */
8970 static bfd_vma sdata_range
[2][2];
8971 static bfd_vma
const sdata_init_range
[2] =
8972 { ACCURATE_12BIT_S1
, ACCURATE_19BIT
};
8975 nds32_elf_insn_size (bfd
*abfd ATTRIBUTE_UNUSED
,
8976 bfd_byte
*contents
, bfd_vma addr
)
8978 unsigned long insn
= bfd_getb32 (contents
+ addr
);
8980 if (insn
& 0x80000000)
8986 /* Set the gp relax range. We have to measure the safe range
8987 to do gp relaxation. */
8990 relax_range_measurement (bfd
*abfd
)
8992 asection
*sec_f
, *sec_b
;
8993 /* For upper bound. */
8994 bfd_vma maxpgsz
= get_elf_backend_data (abfd
)->maxpagesize
;
8996 static int decide_relax_range
= 0;
8998 int range_number
= sizeof (sdata_init_range
) / sizeof (sdata_init_range
[0]);
9000 if (decide_relax_range
)
9002 decide_relax_range
= 1;
9004 if (sda_rela_sec
== NULL
)
9006 /* Since there is no data sections, we assume the range is page size. */
9007 for (i
= 0; i
< range_number
; i
++)
9009 sdata_range
[i
][0] = sdata_init_range
[i
] - 0x1000;
9010 sdata_range
[i
][1] = sdata_init_range
[i
] - 0x1000;
9015 /* Get the biggest alignment power after the gp located section. */
9016 sec_f
= sda_rela_sec
->output_section
;
9017 sec_b
= sec_f
->next
;
9019 while (sec_b
!= NULL
)
9021 if ((unsigned)(1 << sec_b
->alignment_power
) > align
)
9022 align
= (1 << sec_b
->alignment_power
);
9023 sec_b
= sec_b
->next
;
9026 /* I guess we can not determine the section before
9027 gp located section, so we assume the align is max page size. */
9028 for (i
= 0; i
< range_number
; i
++)
9030 sdata_range
[i
][1] = sdata_init_range
[i
] - align
;
9031 BFD_ASSERT (sdata_range
[i
][1] <= sdata_init_range
[i
]);
9032 sdata_range
[i
][0] = sdata_init_range
[i
] - maxpgsz
;
9033 BFD_ASSERT (sdata_range
[i
][0] <= sdata_init_range
[i
]);
9037 /* These are macros used to check flags encoded in r_addend.
9038 They are only used by nds32_elf_relax_section (). */
9039 #define GET_SEQ_LEN(addend) ((addend) & 0x000000ff)
9040 #define IS_1ST_CONVERT(addend) ((addend) & 0x80000000)
9041 #define IS_OPTIMIZE(addend) ((addend) & 0x40000000)
9042 #define IS_16BIT_ON(addend) ((addend) & 0x20000000)
9044 static const char * unrecognized_reloc_msg
=
9045 /* xgettext:c-format */
9046 N_("%B: warning: %s points to unrecognized reloc at 0x%lx.");
9048 /* Relax LONGCALL1 relocation for nds32_elf_relax_section. */
9051 nds32_elf_relax_longcall1 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9052 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9053 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9054 Elf_Internal_Shdr
*symtab_hdr
)
9056 /* There are 3 variations for LONGCALL1
9057 case 4-4-2; 16-bit on, optimize off or optimize for space
9058 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9059 ori ta, ta, lo12(symbol) ; LO12S0
9062 case 4-4-4; 16-bit off, optimize don't care
9063 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9064 ori ta, ta, lo12(symbol) ; LO12S0
9067 case 4-4-4; 16-bit on, optimize for speed
9068 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9069 ori ta, ta, lo12(symbol) ; LO12S0
9071 Check code for -mlong-calls output. */
9073 /* Get the reloc for the address from which the register is
9074 being loaded. This reloc will tell us which function is
9075 actually being called. */
9078 int seq_len
; /* Original length of instruction sequence. */
9080 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *irelend
;
9081 int pic_ext_target
= 0;
9082 bfd_signed_vma foff
;
9085 irelend
= internal_relocs
+ sec
->reloc_count
;
9086 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9087 laddr
= irel
->r_offset
;
9088 *insn_len
= seq_len
;
9090 hi_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9091 R_NDS32_HI20_RELA
, laddr
);
9092 lo_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9093 R_NDS32_LO12S0_ORI_RELA
,
9096 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9098 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL1",
9099 (long) irel
->r_offset
);
9103 /* Get the value of the symbol referred to by the reloc. */
9104 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
,
9107 /* This condition only happened when symbol is undefined. */
9108 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
9109 || foff
>= CONSERVATIVE_24BIT_S1
)
9112 /* Relax to: jal symbol; 25_PCREL */
9113 /* For simplicity of coding, we are going to modify the section
9114 contents, the section relocs, and the BFD symbol table. We
9115 must tell the rest of the code not to free up this
9116 information. It would be possible to instead create a table
9117 of changes which have to be made, as is done in coff-mips.c;
9118 that would be more work, but would require less memory when
9119 the linker is run. */
9121 /* Replace the long call with a jal. */
9122 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9123 R_NDS32_25_PCREL_RELA
);
9124 irel
->r_addend
= hi_irelfn
->r_addend
;
9126 /* We don't resolve this here but resolve it in relocate_section. */
9128 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9131 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9133 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9138 insn16
= NDS32_NOP16
;
9139 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9141 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_INSN16
);
9142 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9148 #define CONVERT_CONDITION_CALL(insn) (((insn) & 0xffff0000) ^ 0x90000)
9149 /* Relax LONGCALL2 relocation for nds32_elf_relax_section. */
9152 nds32_elf_relax_longcall2 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9153 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9154 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9155 Elf_Internal_Shdr
*symtab_hdr
)
9157 /* bltz rt, .L1 ; LONGCALL2
9158 jal symbol ; 25_PCREL
9161 /* Get the reloc for the address from which the register is
9162 being loaded. This reloc will tell us which function is
9163 actually being called. */
9167 Elf_Internal_Rela
*i1_irelfn
, *cond_irelfn
, *irelend
;
9168 int pic_ext_target
= 0;
9169 bfd_signed_vma foff
;
9171 irelend
= internal_relocs
+ sec
->reloc_count
;
9172 laddr
= irel
->r_offset
;
9174 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9175 R_NDS32_25_PCREL_RELA
, laddr
+ 4);
9177 if (i1_irelfn
== irelend
)
9179 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL2",
9180 (long) irel
->r_offset
);
9184 insn
= bfd_getb32 (contents
+ laddr
);
9186 /* Get the value of the symbol referred to by the reloc. */
9187 foff
= calculate_offset (abfd
, sec
, i1_irelfn
, isymbuf
, symtab_hdr
,
9190 if (foff
== 0 || foff
< -CONSERVATIVE_16BIT_S1
9191 || foff
>= CONSERVATIVE_16BIT_S1
)
9194 /* Relax to bgezal rt, label ; 17_PCREL
9195 or bltzal rt, label ; 17_PCREL */
9197 /* Convert to complimentary conditional call. */
9198 insn
= CONVERT_CONDITION_CALL (insn
);
9200 /* For simplicity of coding, we are going to modify the section
9201 contents, the section relocs, and the BFD symbol table. We
9202 must tell the rest of the code not to free up this
9203 information. It would be possible to instead create a table
9204 of changes which have to be made, as is done in coff-mips.c;
9205 that would be more work, but would require less memory when
9206 the linker is run. */
9208 /* Clean unnessary relocations. */
9210 ELF32_R_INFO (ELF32_R_SYM (i1_irelfn
->r_info
), R_NDS32_NONE
);
9212 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9213 R_NDS32_17_PCREL_RELA
, laddr
);
9214 if (cond_irelfn
!= irelend
)
9215 cond_irelfn
->r_info
=
9216 ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
), R_NDS32_NONE
);
9218 /* Replace the long call with a bgezal. */
9219 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i1_irelfn
->r_info
),
9220 R_NDS32_17_PCREL_RELA
);
9221 irel
->r_addend
= i1_irelfn
->r_addend
;
9223 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9229 /* Relax LONGCALL3 relocation for nds32_elf_relax_section. */
9232 nds32_elf_relax_longcall3 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9233 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9234 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9235 Elf_Internal_Shdr
*symtab_hdr
)
9237 /* There are 3 variations for LONGCALL3
9238 case 4-4-4-2; 16-bit on, optimize off or optimize for space
9239 bltz rt, $1 ; LONGCALL3
9240 sethi ta, hi20(symbol) ; HI20
9241 ori ta, ta, lo12(symbol) ; LO12S0
9245 case 4-4-4-4; 16-bit off, optimize don't care
9246 bltz rt, $1 ; LONGCALL3
9247 sethi ta, hi20(symbol) ; HI20
9248 ori ta, ta, lo12(symbol) ; LO12S0
9252 case 4-4-4-4; 16-bit on, optimize for speed
9253 bltz rt, $1 ; LONGCALL3
9254 sethi ta, hi20(symbol) ; HI20
9255 ori ta, ta, lo12(symbol) ; LO12S0
9259 /* Get the reloc for the address from which the register is
9260 being loaded. This reloc will tell us which function is
9261 actually being called. */
9264 int seq_len
; /* Original length of instruction sequence. */
9266 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *cond_irelfn
, *irelend
;
9267 int pic_ext_target
= 0;
9268 bfd_signed_vma foff
;
9271 irelend
= internal_relocs
+ sec
->reloc_count
;
9272 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9273 laddr
= irel
->r_offset
;
9274 *insn_len
= seq_len
;
9277 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9278 R_NDS32_HI20_RELA
, laddr
+ 4);
9280 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9281 R_NDS32_LO12S0_ORI_RELA
, laddr
+ 8);
9283 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9285 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL3",
9286 (long) irel
->r_offset
);
9290 /* Get the value of the symbol referred to by the reloc. */
9291 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
,
9294 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
9295 || foff
>= CONSERVATIVE_24BIT_S1
)
9298 insn
= bfd_getb32 (contents
+ laddr
);
9299 if (foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
9301 /* Relax to bgezal rt, label ; 17_PCREL
9302 or bltzal rt, label ; 17_PCREL */
9304 /* Convert to complimentary conditional call. */
9305 insn
= CONVERT_CONDITION_CALL (insn
);
9306 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9310 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9312 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9314 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9317 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9318 R_NDS32_17_PCREL_RELA
, laddr
);
9319 if (cond_irelfn
!= irelend
)
9321 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9322 R_NDS32_17_PCREL_RELA
);
9323 cond_irelfn
->r_addend
= hi_irelfn
->r_addend
;
9328 insn16
= NDS32_NOP16
;
9329 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9330 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9332 hi_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9336 else if (foff
>= -CONSERVATIVE_24BIT_S1
&& foff
< CONSERVATIVE_24BIT_S1
)
9338 /* Relax to the following instruction sequence
9339 bltz rt, $1 ; LONGCALL2
9340 jal symbol ; 25_PCREL
9344 bfd_putb32 (insn
, contents
+ hi_irelfn
->r_offset
);
9346 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9347 R_NDS32_25_PCREL_RELA
);
9349 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_LONGCALL2
);
9352 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9356 insn16
= NDS32_NOP16
;
9357 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9359 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_INSN16
);
9360 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9367 /* Relax LONGJUMP1 relocation for nds32_elf_relax_section. */
9370 nds32_elf_relax_longjump1 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9371 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9372 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9373 Elf_Internal_Shdr
*symtab_hdr
)
9375 /* There are 3 variations for LONGJUMP1
9376 case 4-4-2; 16-bit bit on, optimize off or optimize for space
9377 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9378 ori ta, ta, lo12(symbol) ; LO12S0
9381 case 4-4-4; 16-bit off, optimize don't care
9382 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9383 ori ta, ta, lo12(symbol) ; LO12S0
9386 case 4-4-4; 16-bit on, optimize for speed
9387 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9388 ori ta, ta, lo12(symbol) ; LO12S0
9391 /* Get the reloc for the address from which the register is
9392 being loaded. This reloc will tell us which function is
9393 actually being called. */
9396 int seq_len
; /* Original length of instruction sequence. */
9397 int insn16_on
; /* 16-bit on/off. */
9399 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *irelend
;
9400 int pic_ext_target
= 0;
9401 bfd_signed_vma foff
;
9403 unsigned long reloc
;
9405 irelend
= internal_relocs
+ sec
->reloc_count
;
9406 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9407 laddr
= irel
->r_offset
;
9408 *insn_len
= seq_len
;
9409 insn16_on
= IS_16BIT_ON (irel
->r_addend
);
9412 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9413 R_NDS32_HI20_RELA
, laddr
);
9415 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9416 R_NDS32_LO12S0_ORI_RELA
, laddr
+ 4);
9417 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9419 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP1",
9420 (long) irel
->r_offset
);
9424 /* Get the value of the symbol referred to by the reloc. */
9425 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
,
9428 if (pic_ext_target
|| foff
== 0 || foff
>= CONSERVATIVE_24BIT_S1
9429 || foff
< -CONSERVATIVE_24BIT_S1
)
9432 if (insn16_on
&& foff
>= -ACCURATE_8BIT_S1
9433 && foff
< ACCURATE_8BIT_S1
&& (seq_len
& 0x2))
9436 /* 16-bit on, but not optimized for speed. */
9437 reloc
= R_NDS32_9_PCREL_RELA
;
9439 bfd_putb16 (insn16
, contents
+ irel
->r_offset
);
9442 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
9447 reloc
= R_NDS32_25_PCREL_RELA
;
9449 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9452 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_INSN16
);
9457 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), reloc
);
9459 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9461 if ((seq_len
& 0x2) && ((*insn_len
& 2) == 0))
9463 insn16
= NDS32_NOP16
;
9464 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9466 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
9468 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9474 /* Revert condition branch. This function does not check if the input
9475 instruction is condition branch or not. */
9478 nds32_elf_convert_branch (uint16_t insn16
, uint32_t insn
,
9479 uint16_t *re_insn16
, uint32_t *re_insn
)
9481 uint32_t comp_insn
= 0;
9482 uint16_t comp_insn16
= 0;
9486 if (N32_OP6 (insn
) == N32_OP6_BR1
)
9489 comp_insn
= (insn
^ 0x4000) & 0xffffc000;
9490 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
)
9492 /* Insn can be contracted to 16-bit implied r5. */
9494 (comp_insn
& 0x4000) ? INSN_BNES38
: INSN_BEQS38
;
9495 comp_insn16
|= (N32_RT5 (insn
) & 0x7) << 8;
9498 else if (N32_OP6 (insn
) == N32_OP6_BR3
)
9500 /* bnec $ta, imm11, label. */
9501 comp_insn
= (insn
^ 0x80000) & 0xffffff00;
9505 comp_insn
= (insn
^ 0x10000) & 0xffffc000;
9506 if (N32_BR2_SUB (insn
) == N32_BR2_BEQZ
9507 || N32_BR2_SUB (insn
) == N32_BR2_BNEZ
)
9509 if (N32_IS_RT3 (insn
))
9511 /* Insn can be contracted to 16-bit. */
9513 (comp_insn
& 0x10000) ? INSN_BNEZ38
: INSN_BEQZ38
;
9514 comp_insn16
|= (N32_RT5 (insn
) & 0x7) << 8;
9516 else if (N32_RT5 (insn
) == REG_R15
)
9518 /* Insn can be contracted to 16-bit. */
9520 (comp_insn
& 0x10000) ? INSN_BNES38
: INSN_BEQS38
;
9527 switch ((insn16
& 0xf000) >> 12)
9530 /* beqz38 or bnez38 */
9531 comp_insn16
= (insn16
^ 0x0800) & 0xff00;
9532 comp_insn
= (comp_insn16
& 0x0800) ? INSN_BNEZ
: INSN_BEQZ
;
9533 comp_insn
|= ((comp_insn16
& 0x0700) >> 8) << 20;
9537 /* beqs38 or bnes38 */
9538 comp_insn16
= (insn16
^ 0x0800) & 0xff00;
9539 comp_insn
= (comp_insn16
& 0x0800) ? INSN_BNE
: INSN_BEQ
;
9540 comp_insn
|= (((comp_insn16
& 0x0700) >> 8) << 20)
9545 /* beqzS8 or bnezS8 */
9546 comp_insn16
= (insn16
^ 0x0100) & 0xff00;
9547 comp_insn
= (comp_insn16
& 0x0100) ? INSN_BNEZ
: INSN_BEQZ
;
9548 comp_insn
|= REG_R15
<< 20;
9555 if (comp_insn
&& re_insn
)
9556 *re_insn
= comp_insn
;
9557 if (comp_insn16
&& re_insn16
)
9558 *re_insn16
= comp_insn16
;
9561 /* Relax LONGJUMP2 relocation for nds32_elf_relax_section. */
9564 nds32_elf_relax_longjump2 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9565 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9566 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9567 Elf_Internal_Shdr
*symtab_hdr
)
9569 /* There are 3 variations for LONGJUMP2
9570 case 2-4; 1st insn convertible, 16-bit on,
9571 optimize off or optimize for space
9572 bnes38 rt, ra, $1 ; LONGJUMP2
9576 case 4-4; 1st insn not convertible
9577 bne rt, ra, $1 ; LONGJUMP2
9581 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
9582 bne rt, ra, $1 ; LONGJUMP2
9586 /* Get the reloc for the address from which the register is
9587 being loaded. This reloc will tell us which function is
9588 actually being called. */
9591 int seq_len
; /* Original length of instruction sequence. */
9592 Elf_Internal_Rela
*i2_irelfn
, *cond_irelfn
, *irelend
;
9593 int pic_ext_target
= 0, first_size
;
9595 bfd_signed_vma foff
;
9596 uint32_t insn
, re_insn
= 0;
9597 uint16_t insn16
, re_insn16
= 0;
9598 unsigned long reloc
, cond_reloc
;
9600 enum elf_nds32_reloc_type checked_types
[] =
9601 { R_NDS32_15_PCREL_RELA
, R_NDS32_9_PCREL_RELA
};
9603 irelend
= internal_relocs
+ sec
->reloc_count
;
9604 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9605 laddr
= irel
->r_offset
;
9606 *insn_len
= seq_len
;
9607 first_size
= (seq_len
== 6) ? 2 : 4;
9610 find_relocs_at_address_addr (irel
, internal_relocs
,
9611 irelend
, R_NDS32_25_PCREL_RELA
,
9612 laddr
+ first_size
);
9614 for (i
= 0; i
< sizeof (checked_types
) / sizeof(checked_types
[0]); i
++)
9617 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9618 checked_types
[i
], laddr
);
9619 if (cond_irelfn
!= irelend
)
9623 if (i2_irelfn
== irelend
|| cond_irelfn
== irelend
)
9625 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP2",
9626 (long) irel
->r_offset
);
9630 /* Get the value of the symbol referred to by the reloc. */
9632 calculate_offset (abfd
, sec
, i2_irelfn
, isymbuf
, symtab_hdr
,
9634 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_16BIT_S1
9635 || foff
>= CONSERVATIVE_16BIT_S1
)
9638 /* Get the all corresponding instructions. */
9639 if (first_size
== 4)
9641 insn
= bfd_getb32 (contents
+ laddr
);
9642 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
9646 insn16
= bfd_getb16 (contents
+ laddr
);
9647 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
9650 if (re_insn16
&& foff
>= -(ACCURATE_8BIT_S1
- first_size
)
9651 && foff
< ACCURATE_8BIT_S1
- first_size
)
9653 if (first_size
== 4)
9655 /* Don't convert it to 16-bit now, keep this as relaxable for
9656 ``label reloc; INSN16''. */
9658 /* Save comp_insn32 to buffer. */
9659 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9661 reloc
= (N32_OP6 (re_insn
) == N32_OP6_BR1
) ?
9662 R_NDS32_15_PCREL_RELA
: R_NDS32_17_PCREL_RELA
;
9663 cond_reloc
= R_NDS32_INSN16
;
9667 bfd_putb16 (re_insn16
, contents
+ irel
->r_offset
);
9669 reloc
= R_NDS32_9_PCREL_RELA
;
9670 cond_reloc
= R_NDS32_NONE
;
9673 else if (N32_OP6 (re_insn
) == N32_OP6_BR1
9674 && (foff
>= -(ACCURATE_14BIT_S1
- first_size
)
9675 && foff
< ACCURATE_14BIT_S1
- first_size
))
9677 /* beqs label ; 15_PCREL */
9678 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9680 reloc
= R_NDS32_15_PCREL_RELA
;
9681 cond_reloc
= R_NDS32_NONE
;
9683 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
9684 && foff
>= -CONSERVATIVE_16BIT_S1
9685 && foff
< CONSERVATIVE_16BIT_S1
)
9687 /* beqz label ; 17_PCREL */
9688 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9690 reloc
= R_NDS32_17_PCREL_RELA
;
9691 cond_reloc
= R_NDS32_NONE
;
9696 /* Set all relocations. */
9697 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
), reloc
);
9698 irel
->r_addend
= i2_irelfn
->r_addend
;
9700 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
),
9702 cond_irelfn
->r_addend
= 0;
9704 if ((seq_len
^ *insn_len
) & 0x2)
9706 insn16
= NDS32_NOP16
;
9707 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ 4);
9708 i2_irelfn
->r_offset
= 4;
9709 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
),
9711 i2_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9715 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
),
9720 /* Relax LONGJUMP3 relocation for nds32_elf_relax_section. */
9723 nds32_elf_relax_longjump3 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9724 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9725 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9726 Elf_Internal_Shdr
*symtab_hdr
)
9728 /* There are 5 variations for LONGJUMP3
9729 case 1: 2-4-4-2; 1st insn convertible, 16-bit on,
9730 optimize off or optimize for space
9731 bnes38 rt, ra, $1 ; LONGJUMP3
9732 sethi ta, hi20(symbol) ; HI20
9733 ori ta, ta, lo12(symbol) ; LO12S0
9737 case 2: 2-4-4-2; 1st insn convertible, 16-bit on, optimize for speed
9738 bnes38 rt, ra, $1 ; LONGJUMP3
9739 sethi ta, hi20(symbol) ; HI20
9740 ori ta, ta, lo12(symbol) ; LO12S0
9744 case 3: 4-4-4-2; 1st insn not convertible, 16-bit on,
9745 optimize off or optimize for space
9746 bne rt, ra, $1 ; LONGJUMP3
9747 sethi ta, hi20(symbol) ; HI20
9748 ori ta, ta, lo12(symbol) ; LO12S0
9752 case 4: 4-4-4-4; 1st insn don't care, 16-bit off, optimize don't care
9753 16-bit off if no INSN16
9754 bne rt, ra, $1 ; LONGJUMP3
9755 sethi ta, hi20(symbol) ; HI20
9756 ori ta, ta, lo12(symbol) ; LO12S0
9760 case 5: 4-4-4-4; 1st insn not convertible, 16-bit on, optimize for speed
9761 16-bit off if no INSN16
9762 bne rt, ra, $1 ; LONGJUMP3
9763 sethi ta, hi20(symbol) ; HI20
9764 ori ta, ta, lo12(symbol) ; LO12S0
9768 /* Get the reloc for the address from which the register is
9769 being loaded. This reloc will tell us which function is
9770 actually being called. */
9771 enum elf_nds32_reloc_type checked_types
[] =
9772 { R_NDS32_15_PCREL_RELA
, R_NDS32_9_PCREL_RELA
};
9774 int reloc_off
= 0, cond_removed
= 0, convertible
;
9776 int seq_len
; /* Original length of instruction sequence. */
9777 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *cond_irelfn
, *irelend
;
9778 int pic_ext_target
= 0, first_size
;
9780 bfd_signed_vma foff
;
9781 uint32_t insn
, re_insn
= 0;
9782 uint16_t insn16
, re_insn16
= 0;
9783 unsigned long reloc
, cond_reloc
;
9785 irelend
= internal_relocs
+ sec
->reloc_count
;
9786 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9787 laddr
= irel
->r_offset
;
9788 *insn_len
= seq_len
;
9790 convertible
= IS_1ST_CONVERT (irel
->r_addend
);
9797 /* Get all needed relocations. */
9799 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9800 R_NDS32_HI20_RELA
, laddr
+ first_size
);
9802 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9803 R_NDS32_LO12S0_ORI_RELA
,
9804 laddr
+ first_size
+ 4);
9806 for (i
= 0; i
< sizeof (checked_types
) / sizeof (checked_types
[0]); i
++)
9809 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9810 checked_types
[i
], laddr
);
9811 if (cond_irelfn
!= irelend
)
9815 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
|| cond_irelfn
== irelend
)
9817 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP3",
9818 (long) irel
->r_offset
);
9822 /* Get the value of the symbol referred to by the reloc. */
9823 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
,
9826 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
9827 || foff
>= CONSERVATIVE_24BIT_S1
)
9830 /* Get the all corresponding instructions. */
9831 if (first_size
== 4)
9833 insn
= bfd_getb32 (contents
+ laddr
);
9834 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
9838 insn16
= bfd_getb16 (contents
+ laddr
);
9839 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
9842 /* For simplicity of coding, we are going to modify the section
9843 contents, the section relocs, and the BFD symbol table. We
9844 must tell the rest of the code not to free up this
9845 information. It would be possible to instead create a table
9846 of changes which have to be made, as is done in coff-mips.c;
9847 that would be more work, but would require less memory when
9848 the linker is run. */
9850 if (re_insn16
&& foff
>= -ACCURATE_8BIT_S1
- first_size
9851 && foff
< ACCURATE_8BIT_S1
- first_size
)
9853 if (!(seq_len
& 0x2))
9855 /* Don't convert it to 16-bit now, keep this as relaxable
9856 for ``label reloc; INSN1a''6. */
9857 /* Save comp_insn32 to buffer. */
9858 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9860 reloc
= (N32_OP6 (re_insn
) == N32_OP6_BR1
) ?
9861 R_NDS32_15_PCREL_RELA
: R_NDS32_17_PCREL_RELA
;
9862 cond_reloc
= R_NDS32_INSN16
;
9866 /* Not optimize for speed; convert sequence to 16-bit. */
9867 /* Save comp_insn16 to buffer. */
9868 bfd_putb16 (re_insn16
, contents
+ irel
->r_offset
);
9870 reloc
= R_NDS32_9_PCREL_RELA
;
9871 cond_reloc
= R_NDS32_NONE
;
9875 else if (N32_OP6 (re_insn
) == N32_OP6_BR1
9876 && (foff
>= -(ACCURATE_14BIT_S1
- first_size
)
9877 && foff
< ACCURATE_14BIT_S1
- first_size
))
9879 /* beqs label ; 15_PCREL */
9880 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9882 reloc
= R_NDS32_15_PCREL_RELA
;
9883 cond_reloc
= R_NDS32_NONE
;
9886 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
9887 && foff
>= -CONSERVATIVE_16BIT_S1
9888 && foff
< CONSERVATIVE_16BIT_S1
)
9890 /* beqz label ; 17_PCREL */
9891 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9893 reloc
= R_NDS32_17_PCREL_RELA
;
9894 cond_reloc
= R_NDS32_NONE
;
9897 else if (foff
>= -CONSERVATIVE_24BIT_S1
- reloc_off
9898 && foff
< CONSERVATIVE_24BIT_S1
- reloc_off
)
9900 /* Relax to one of the following 3 variations
9902 case 2-4; 1st insn convertible, 16-bit on, optimize off or optimize
9904 bnes38 rt, $1 ; LONGJUMP2
9908 case 4-4; 1st insn not convertible, others don't care
9909 bne rt, ra, $1 ; LONGJUMP2
9913 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
9914 bne rt, ra, $1 ; LONGJUMP2
9918 /* Offset for first instruction. */
9920 /* Use j label as second instruction. */
9921 *insn_len
= 4 + first_size
;
9923 bfd_putb32 (insn
, contents
+ hi_irelfn
->r_offset
);
9924 reloc
= R_NDS32_LONGJUMP2
;
9925 cond_reloc
= R_NDS32_25_PLTREL
;
9930 if (cond_removed
== 1)
9932 /* Set all relocations. */
9933 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), reloc
);
9934 irel
->r_addend
= hi_irelfn
->r_addend
;
9936 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
),
9938 cond_irelfn
->r_addend
= 0;
9939 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9944 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
9945 irel
->r_addend
= irel
->r_addend
;
9946 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9950 if ((seq_len
^ *insn_len
) & 0x2)
9952 insn16
= NDS32_NOP16
;
9953 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9954 lo_irelfn
->r_offset
= *insn_len
;
9955 lo_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
9957 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9961 lo_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
9966 /* Relax LONGCALL4 relocation for nds32_elf_relax_section. */
9969 nds32_elf_relax_longcall4 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9970 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9971 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9972 Elf_Internal_Shdr
*symtab_hdr
)
9974 /* The pattern for LONGCALL4. Support for function cse.
9975 sethi ta, hi20(symbol) ; LONGCALL4/HI20
9976 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
9977 jral ta ; PTR_RES/EMPTY/INSN16 */
9981 Elf_Internal_Rela
*hi_irel
, *ptr_irel
, *insn_irel
, *em_irel
, *call_irel
;
9982 Elf_Internal_Rela
*irelend
;
9983 int pic_ext_target
= 0;
9984 bfd_signed_vma foff
;
9986 irelend
= internal_relocs
+ sec
->reloc_count
;
9987 laddr
= irel
->r_offset
;
9989 /* Get the reloc for the address from which the register is
9990 being loaded. This reloc will tell us which function is
9991 actually being called. */
9992 hi_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9993 R_NDS32_HI20_RELA
, laddr
);
9995 if (hi_irel
== irelend
)
9997 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL4",
9998 (long) irel
->r_offset
);
10002 /* Get the value of the symbol referred to by the reloc. */
10003 foff
= calculate_offset (abfd
, sec
, hi_irel
, isymbuf
, symtab_hdr
,
10006 /* This condition only happened when symbol is undefined. */
10007 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
10008 || foff
>= CONSERVATIVE_24BIT_S1
)
10011 /* Relax to: jal symbol; 25_PCREL */
10012 /* For simplicity of coding, we are going to modify the section
10013 contents, the section relocs, and the BFD symbol table. We
10014 must tell the rest of the code not to free up this
10015 information. It would be possible to instead create a table
10016 of changes which have to be made, as is done in coff-mips.c;
10017 that would be more work, but would require less memory when
10018 the linker is run. */
10020 ptr_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10021 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10022 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10023 R_NDS32_EMPTY
, irel
->r_addend
);
10025 if (ptr_irel
== irelend
|| em_irel
== irelend
)
10027 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL4",
10028 (long) irel
->r_offset
);
10031 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10032 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10033 if (insn
& 0x80000000)
10036 /* Replace the long call with a jal. */
10037 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
),
10038 R_NDS32_25_PCREL_RELA
);
10039 ptr_irel
->r_addend
= 1;
10041 /* We don't resolve this here but resolve it in relocate_section. */
10043 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10046 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10048 /* If there is function cse, HI20 can not remove now. */
10049 call_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10050 R_NDS32_LONGCALL4
, laddr
);
10051 if (call_irel
== irelend
)
10055 ELF32_R_INFO (ELF32_R_SYM (hi_irel
->r_info
), R_NDS32_NONE
);
10058 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10059 R_NDS32_INSN16
, irel
->r_addend
);
10060 if (insn_irel
!= irelend
)
10061 insn_irel
->r_info
=
10062 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10067 /* Relax LONGCALL5 relocation for nds32_elf_relax_section. */
10070 nds32_elf_relax_longcall5 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10071 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10072 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10073 Elf_Internal_Shdr
*symtab_hdr
)
10075 /* The pattern for LONGCALL5.
10076 bltz rt, .L1 ; LONGCALL5/17_PCREL
10077 jal symbol ; 25_PCREL
10082 Elf_Internal_Rela
*cond_irel
, *irelend
;
10083 int pic_ext_target
= 0;
10084 bfd_signed_vma foff
;
10086 irelend
= internal_relocs
+ sec
->reloc_count
;
10087 laddr
= irel
->r_offset
;
10088 insn
= bfd_getb32 (contents
+ laddr
);
10090 /* Get the reloc for the address from which the register is
10091 being loaded. This reloc will tell us which function is
10092 actually being called. */
10094 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10095 R_NDS32_25_PCREL_RELA
, irel
->r_addend
);
10096 if (cond_irel
== irelend
)
10098 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL5",
10099 (long) irel
->r_offset
);
10103 /* Get the value of the symbol referred to by the reloc. */
10104 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
,
10107 if (foff
== 0 || foff
< -CONSERVATIVE_16BIT_S1
10108 || foff
>= CONSERVATIVE_16BIT_S1
)
10111 /* Relax to bgezal rt, label ; 17_PCREL
10112 or bltzal rt, label ; 17_PCREL */
10114 /* Convert to complimentary conditional call. */
10115 insn
= CONVERT_CONDITION_CALL (insn
);
10117 /* For simplicity of coding, we are going to modify the section
10118 contents, the section relocs, and the BFD symbol table. We
10119 must tell the rest of the code not to free up this
10120 information. It would be possible to instead create a table
10121 of changes which have to be made, as is done in coff-mips.c;
10122 that would be more work, but would require less memory when
10123 the linker is run. */
10125 /* Modify relocation and contents. */
10126 cond_irel
->r_info
=
10127 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_17_PCREL_RELA
);
10129 /* Replace the long call with a bgezal. */
10130 bfd_putb32 (insn
, contents
+ cond_irel
->r_offset
);
10133 /* Clean unnessary relocations. */
10134 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10136 cond_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10137 R_NDS32_17_PCREL_RELA
, laddr
);
10138 cond_irel
->r_info
=
10139 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10144 /* Relax LONGCALL6 relocation for nds32_elf_relax_section. */
10147 nds32_elf_relax_longcall6 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10148 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10149 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10150 Elf_Internal_Shdr
*symtab_hdr
)
10152 /* The pattern for LONGCALL6.
10153 bltz rt, .L1 ; LONGCALL6/17_PCREL
10154 sethi ta, hi20(symbol) ; HI20/PTR
10155 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10156 jral ta ; PTR_RES/EMPTY/INSN16
10161 Elf_Internal_Rela
*em_irel
, *cond_irel
, *irelend
;
10162 int pic_ext_target
= 0;
10163 bfd_signed_vma foff
;
10165 irelend
= internal_relocs
+ sec
->reloc_count
;
10166 laddr
= irel
->r_offset
;
10168 /* Get the reloc for the address from which the register is
10169 being loaded. This reloc will tell us which function is
10170 actually being called. */
10171 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10172 R_NDS32_EMPTY
, irel
->r_addend
);
10174 if (em_irel
== irelend
)
10176 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL6",
10177 (long) irel
->r_offset
);
10181 /* Get the value of the symbol referred to by the reloc. */
10182 foff
= calculate_offset (abfd
, sec
, em_irel
, isymbuf
, symtab_hdr
,
10185 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
10186 || foff
>= CONSERVATIVE_24BIT_S1
)
10189 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10190 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10191 if (insn
& 0x80000000)
10194 insn
= bfd_getb32 (contents
+ laddr
);
10195 if (foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
10197 /* Relax to bgezal rt, label ; 17_PCREL
10198 or bltzal rt, label ; 17_PCREL */
10200 /* Convert to complimentary conditional call. */
10202 insn
= CONVERT_CONDITION_CALL (insn
);
10203 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10206 ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), R_NDS32_17_PCREL_RELA
);
10208 /* Set resolved relocation. */
10210 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10211 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10212 if (cond_irel
== irelend
)
10214 _bfd_error_handler (unrecognized_reloc_msg
, abfd
,
10215 "R_NDS32_LONGCALL6", (long) irel
->r_offset
);
10218 cond_irel
->r_addend
= 1;
10220 /* Clear relocations. */
10223 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10226 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10227 R_NDS32_17_PCREL_RELA
, laddr
);
10228 if (cond_irel
!= irelend
)
10229 cond_irel
->r_info
=
10230 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10233 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10234 R_NDS32_INSN16
, irel
->r_addend
);
10235 if (cond_irel
!= irelend
)
10236 cond_irel
->r_info
=
10237 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10240 else if (foff
>= -CONSERVATIVE_24BIT_S1
&& foff
< CONSERVATIVE_24BIT_S1
)
10242 /* Relax to the following instruction sequence
10243 bltz rt, .L1 ; LONGCALL2/17_PCREL
10244 jal symbol ; 25_PCREL/PTR_RES
10247 /* Convert instruction. */
10249 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10251 /* Convert relocations. */
10252 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
),
10253 R_NDS32_25_PCREL_RELA
);
10255 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_LONGCALL5
);
10257 /* Set resolved relocation. */
10259 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10260 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10261 if (cond_irel
== irelend
)
10263 _bfd_error_handler (unrecognized_reloc_msg
, abfd
,
10264 "R_NDS32_LONGCALL6", (long) irel
->r_offset
);
10267 cond_irel
->r_addend
= 1;
10270 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10271 R_NDS32_INSN16
, irel
->r_addend
);
10272 if (cond_irel
!= irelend
)
10273 cond_irel
->r_info
=
10274 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10279 /* Relax LONGJUMP4 relocation for nds32_elf_relax_section. */
10282 nds32_elf_relax_longjump4 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10283 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10284 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10285 Elf_Internal_Shdr
*symtab_hdr
)
10287 /* The pattern for LONGJUMP4.
10288 sethi ta, hi20(symbol) ; LONGJUMP4/HI20
10289 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10290 jr ta ; PTR_RES/INSN16/EMPTY */
10293 int seq_len
; /* Original length of instruction sequence. */
10295 Elf_Internal_Rela
*hi_irel
, *ptr_irel
, *em_irel
, *call_irel
, *irelend
;
10296 int pic_ext_target
= 0;
10297 bfd_signed_vma foff
;
10299 irelend
= internal_relocs
+ sec
->reloc_count
;
10300 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10301 laddr
= irel
->r_offset
;
10302 *insn_len
= seq_len
;
10304 /* Get the reloc for the address from which the register is
10305 being loaded. This reloc will tell us which function is
10306 actually being called. */
10308 hi_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10309 R_NDS32_HI20_RELA
, laddr
);
10311 if (hi_irel
== irelend
)
10313 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP4",
10314 (long) irel
->r_offset
);
10318 /* Get the value of the symbol referred to by the reloc. */
10319 foff
= calculate_offset (abfd
, sec
, hi_irel
, isymbuf
, symtab_hdr
,
10322 if (pic_ext_target
|| foff
== 0 || foff
>= CONSERVATIVE_24BIT_S1
10323 || foff
< -CONSERVATIVE_24BIT_S1
)
10326 /* Convert it to "j label", it may be converted to j8 in the final
10327 pass of relaxation. Therefore, we do not consider this currently. */
10328 ptr_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10329 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10330 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10331 R_NDS32_EMPTY
, irel
->r_addend
);
10333 if (ptr_irel
== irelend
|| em_irel
== irelend
)
10335 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP4",
10336 (long) irel
->r_offset
);
10341 ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), R_NDS32_25_PCREL_RELA
);
10342 ptr_irel
->r_addend
= 1;
10344 /* Write instruction. */
10346 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10348 /* Clear relocations. */
10349 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10351 /* If there is function cse, HI20 can not remove now. */
10352 call_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10353 R_NDS32_LONGJUMP4
, laddr
);
10354 if (call_irel
== irelend
)
10358 ELF32_R_INFO (ELF32_R_SYM (hi_irel
->r_info
), R_NDS32_NONE
);
10364 /* Relax LONGJUMP5 relocation for nds32_elf_relax_section. */
10367 nds32_elf_relax_longjump5 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10368 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10369 int *seq_len
, bfd_byte
*contents
,
10370 Elf_Internal_Sym
*isymbuf
,
10371 Elf_Internal_Shdr
*symtab_hdr
)
10373 /* There are 2 variations for LONGJUMP5
10374 case 2-4; 1st insn convertible, 16-bit on.
10375 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
10376 j label ; 25_PCREL/INSN16
10379 case 4-4; 1st insn not convertible
10380 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
10381 j label ; 25_PCREL/INSN16
10385 Elf_Internal_Rela
*cond_irel
, *irelend
;
10386 int pic_ext_target
= 0;
10388 bfd_signed_vma foff
;
10389 uint32_t insn
, re_insn
= 0;
10390 uint16_t insn16
, re_insn16
= 0;
10391 unsigned long reloc
;
10393 enum elf_nds32_reloc_type checked_types
[] =
10394 { R_NDS32_17_PCREL_RELA
, R_NDS32_15_PCREL_RELA
,
10395 R_NDS32_9_PCREL_RELA
, R_NDS32_INSN16
};
10397 irelend
= internal_relocs
+ sec
->reloc_count
;
10398 laddr
= irel
->r_offset
;
10400 /* Get the reloc for the address from which the register is
10401 being loaded. This reloc will tell us which function is
10402 actually being called. */
10405 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10406 R_NDS32_25_PCREL_RELA
, irel
->r_addend
);
10407 if (cond_irel
== irelend
)
10409 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP5",
10410 (long) irel
->r_offset
);
10414 /* Get the value of the symbol referred to by the reloc. */
10415 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
,
10418 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_16BIT_S1
10419 || foff
>= CONSERVATIVE_16BIT_S1
)
10422 /* Get the all corresponding instructions. */
10423 insn
= bfd_getb32 (contents
+ laddr
);
10424 /* Check instruction size. */
10425 if (insn
& 0x80000000)
10428 insn16
= insn
>> 16;
10429 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10432 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10434 if (N32_OP6 (re_insn
) == N32_OP6_BR1
10435 && (foff
>= -CONSERVATIVE_14BIT_S1
&& foff
< CONSERVATIVE_14BIT_S1
))
10437 /* beqs label ; 15_PCREL. */
10438 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10439 reloc
= R_NDS32_15_PCREL_RELA
;
10441 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10442 && foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
10444 /* beqz label ; 17_PCREL. */
10445 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10446 reloc
= R_NDS32_17_PCREL_RELA
;
10448 else if ( N32_OP6 (re_insn
) == N32_OP6_BR3
10449 && foff
>= -CONSERVATIVE_8BIT_S1
&& foff
< CONSERVATIVE_8BIT_S1
)
10451 /* beqc label ; 9_PCREL. */
10452 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10453 reloc
= R_NDS32_WORD_9_PCREL_RELA
;
10458 /* Set all relocations. */
10459 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), reloc
);
10461 /* Clean relocations. */
10462 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10463 for (i
= 0; i
< sizeof (checked_types
) / sizeof (checked_types
[0]); i
++)
10465 cond_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10466 checked_types
[i
], laddr
);
10467 if (cond_irel
!= irelend
)
10470 && (ELF32_R_TYPE (cond_irel
->r_info
) == R_NDS32_INSN16
))
10472 /* If the branch instruction is 2 byte, it cannot remove
10473 directly. Only convert it to nop16 and remove it after
10474 checking alignment issue. */
10475 insn16
= NDS32_NOP16
;
10476 bfd_putb16 (insn16
, contents
+ laddr
);
10477 cond_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10480 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
10489 /* Relax LONGJUMP6 relocation for nds32_elf_relax_section. */
10492 nds32_elf_relax_longjump6 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10493 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10494 int *seq_len
, bfd_byte
*contents
,
10495 Elf_Internal_Sym
*isymbuf
,
10496 Elf_Internal_Shdr
*symtab_hdr
)
10498 /* There are 5 variations for LONGJUMP6
10499 case : 2-4-4-4; 1st insn convertible, 16-bit on.
10500 bnes38 rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
10501 sethi ta, hi20(symbol) ; HI20/PTR
10502 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10503 jr ta ; PTR_RES/INSN16/EMPTY
10506 case : 4-4-4-4; 1st insn not convertible, 16-bit on.
10507 bne rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
10508 sethi ta, hi20(symbol) ; HI20/PTR
10509 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10510 jr ta ; PTR_RES/INSN16/EMPTY
10513 enum elf_nds32_reloc_type checked_types
[] =
10514 { R_NDS32_17_PCREL_RELA
, R_NDS32_15_PCREL_RELA
,
10515 R_NDS32_9_PCREL_RELA
, R_NDS32_INSN16
};
10517 int reloc_off
= 0, cond_removed
= 0;
10519 Elf_Internal_Rela
*cond_irel
, *em_irel
, *irelend
, *insn_irel
;
10520 int pic_ext_target
= 0;
10522 bfd_signed_vma foff
;
10523 uint32_t insn
, re_insn
= 0;
10524 uint16_t insn16
, re_insn16
= 0;
10525 unsigned long reloc
;
10527 irelend
= internal_relocs
+ sec
->reloc_count
;
10528 laddr
= irel
->r_offset
;
10530 /* Get the reloc for the address from which the register is
10531 being loaded. This reloc will tell us which function is
10532 actually being called. */
10533 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10534 R_NDS32_EMPTY
, irel
->r_addend
);
10536 if (em_irel
== irelend
)
10538 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP6",
10539 (long) irel
->r_offset
);
10543 /* Get the value of the symbol referred to by the reloc. */
10544 foff
= calculate_offset (abfd
, sec
, em_irel
, isymbuf
, symtab_hdr
,
10547 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
10548 || foff
>= CONSERVATIVE_24BIT_S1
)
10551 insn
= bfd_getb32 (contents
+ laddr
);
10552 /* Check instruction size. */
10553 if (insn
& 0x80000000)
10556 insn16
= insn
>> 16;
10557 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10560 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10562 /* For simplicity of coding, we are going to modify the section
10563 contents, the section relocs, and the BFD symbol table. We
10564 must tell the rest of the code not to free up this
10565 information. It would be possible to instead create a table
10566 of changes which have to be made, as is done in coff-mips.c;
10567 that would be more work, but would require less memory when
10568 the linker is run. */
10570 if (N32_OP6 (re_insn
) == N32_OP6_BR1
10571 && (foff
>= -CONSERVATIVE_14BIT_S1
&& foff
< CONSERVATIVE_14BIT_S1
))
10573 /* beqs label ; 15_PCREL */
10574 bfd_putb32 (re_insn
, contents
+ em_irel
->r_offset
);
10575 reloc
= R_NDS32_15_PCREL_RELA
;
10578 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10579 && foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
10581 /* beqz label ; 17_PCREL */
10582 bfd_putb32 (re_insn
, contents
+ em_irel
->r_offset
);
10583 reloc
= R_NDS32_17_PCREL_RELA
;
10586 else if (foff
>= -CONSERVATIVE_24BIT_S1
- reloc_off
10587 && foff
< CONSERVATIVE_24BIT_S1
- reloc_off
)
10589 /* Relax to one of the following 2 variations
10591 case 2-4; 1st insn convertible, 16-bit on.
10592 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
10593 j label ; 25_PCREL/INSN16
10596 case 4-4; 1st insn not convertible
10597 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
10598 j label ; 25_PCREL/INSN16
10601 /* Use j label as second instruction. */
10603 reloc
= R_NDS32_25_PCREL_RELA
;
10604 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10609 /* Set all relocations. */
10610 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), reloc
);
10613 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10614 R_NDS32_PTR_RESOLVED
, em_irel
->r_offset
);
10615 cond_irel
->r_addend
= 1;
10617 /* Use INSN16 of first branch instruction to distinguish if keeping
10618 INSN16 of final instruction or not. */
10619 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10620 R_NDS32_INSN16
, irel
->r_offset
);
10621 if (insn_irel
== irelend
)
10623 /* Clean the final INSN16. */
10625 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10626 R_NDS32_INSN16
, em_irel
->r_offset
);
10627 insn_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
10631 if (cond_removed
== 1)
10635 /* Clear relocations. */
10636 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10638 for (i
= 0; i
< sizeof (checked_types
) / sizeof (checked_types
[0]); i
++)
10641 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10642 checked_types
[i
], laddr
);
10643 if (cond_irel
!= irelend
)
10646 && (ELF32_R_TYPE (cond_irel
->r_info
) == R_NDS32_INSN16
))
10648 /* If the branch instruction is 2 byte, it cannot remove
10649 directly. Only convert it to nop16 and remove it after
10650 checking alignment issue. */
10651 insn16
= NDS32_NOP16
;
10652 bfd_putb16 (insn16
, contents
+ laddr
);
10653 cond_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10656 cond_irel
->r_info
=
10657 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10663 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
10664 R_NDS32_LONGJUMP5
);
10670 /* Relax LONGJUMP7 relocation for nds32_elf_relax_section. */
10673 nds32_elf_relax_longjump7 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10674 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10675 int *seq_len
, bfd_byte
*contents
,
10676 Elf_Internal_Sym
*isymbuf
,
10677 Elf_Internal_Shdr
*symtab_hdr
)
10679 /* There are 2 variations for LONGJUMP5
10680 case 2-4; 1st insn convertible, 16-bit on.
10681 movi55 ta, imm11 ; LONGJUMP7/INSN16
10682 beq rt, ta, label ; 15_PCREL
10684 case 4-4; 1st insn not convertible
10685 movi55 ta, imm11 ; LONGJUMP7/INSN16
10686 beq rt, ta, label ; 15_PCREL */
10689 Elf_Internal_Rela
*cond_irel
, *irelend
, *insn_irel
;
10690 int pic_ext_target
= 0;
10691 bfd_signed_vma foff
;
10692 uint32_t insn
, re_insn
= 0;
10696 irelend
= internal_relocs
+ sec
->reloc_count
;
10697 laddr
= irel
->r_offset
;
10699 /* Get the reloc for the address from which the register is
10700 being loaded. This reloc will tell us which function is
10701 actually being called. */
10704 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10705 R_NDS32_15_PCREL_RELA
, irel
->r_addend
);
10706 if (cond_irel
== irelend
)
10708 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP7",
10709 (long) irel
->r_offset
);
10713 /* Get the value of the symbol referred to by the reloc. */
10714 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
,
10717 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_8BIT_S1
10718 || foff
>= CONSERVATIVE_8BIT_S1
)
10721 /* Get the first instruction for its size. */
10722 insn
= bfd_getb32 (contents
+ laddr
);
10723 if (insn
& 0x80000000)
10726 /* Get the immediate from movi55. */
10727 imm11
= N16_IMM5S (insn
>> 16);
10731 /* Get the immediate from movi. */
10732 imm11
= N32_IMM20S (insn
);
10735 /* Get the branch instruction. */
10736 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10737 /* Convert instruction to BR3. */
10738 if ((insn
>> 14) & 0x1)
10739 re_insn
= N32_BR3 (BNEC
, N32_RT5 (insn
), imm11
, 0);
10741 re_insn
= N32_BR3 (BEQC
, N32_RT5 (insn
), imm11
, 0);
10743 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10745 /* Set all relocations. */
10746 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
10747 R_NDS32_WORD_9_PCREL_RELA
);
10749 /* Clean relocations. */
10750 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10751 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10752 R_NDS32_INSN16
, irel
->r_offset
);
10753 if (insn_irel
!= irelend
)
10757 /* If the first insntruction is 16bit, convert it to nop16. */
10758 insn16
= NDS32_NOP16
;
10759 bfd_putb16 (insn16
, contents
+ laddr
);
10760 insn_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10763 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
10771 #define GET_LOADSTORE_RANGE(addend) (((addend) >> 8) & 0x3f)
10773 /* Relax LOADSTORE relocation for nds32_elf_relax_section. */
10776 nds32_elf_relax_loadstore (struct bfd_link_info
*link_info
, bfd
*abfd
,
10777 asection
*sec
, Elf_Internal_Rela
*irel
,
10778 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10779 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10780 Elf_Internal_Shdr
*symtab_hdr
, int load_store_relax
)
10782 int eliminate_sethi
= 0, range_type
;
10784 bfd_vma local_sda
, laddr
;
10785 int seq_len
; /* Original length of instruction sequence. */
10787 Elf_Internal_Rela
*hi_irelfn
= NULL
, *irelend
;
10788 bfd_vma access_addr
= 0;
10789 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
10790 enum elf_nds32_reloc_type checked_types
[] =
10791 { R_NDS32_HI20_RELA
, R_NDS32_GOT_HI20
,
10792 R_NDS32_GOTPC_HI20
, R_NDS32_GOTOFF_HI20
,
10793 R_NDS32_PLTREL_HI20
, R_NDS32_PLT_GOTREL_HI20
,
10794 R_NDS32_TLS_LE_HI20
10797 irelend
= internal_relocs
+ sec
->reloc_count
;
10798 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10799 laddr
= irel
->r_offset
;
10800 *insn_len
= seq_len
;
10802 /* Get the high part relocation. */
10803 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
10805 hi_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10806 checked_types
[i
], laddr
);
10807 if (hi_irelfn
!= irelend
)
10811 if (hi_irelfn
== irelend
)
10813 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LOADSTORE",
10814 (long) irel
->r_offset
);
10818 range_type
= GET_LOADSTORE_RANGE (irel
->r_addend
);
10819 nds32_elf_final_sda_base (sec
->output_section
->owner
,
10820 link_info
, &local_sda
, FALSE
);
10822 switch (ELF32_R_TYPE (hi_irelfn
->r_info
))
10824 case R_NDS32_HI20_RELA
:
10825 insn
= bfd_getb32 (contents
+ laddr
);
10827 calculate_memory_address (abfd
, hi_irelfn
, isymbuf
, symtab_hdr
);
10829 if (range_type
== NDS32_LOADSTORE_IMM
)
10831 struct elf_link_hash_entry
*h
= NULL
;
10834 if (ELF32_R_SYM (hi_irelfn
->r_info
) >= symtab_hdr
->sh_info
)
10836 indx
= ELF32_R_SYM (hi_irelfn
->r_info
) - symtab_hdr
->sh_info
;
10837 h
= elf_sym_hashes (abfd
)[indx
];
10840 if ((access_addr
< CONSERVATIVE_20BIT
)
10841 && (!h
|| (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) != 0)))
10843 eliminate_sethi
= 1;
10847 /* This is avoid to relax symbol address which is fixed
10848 relocations. Ex: _stack. */
10849 if (h
&& bfd_is_abs_section (h
->root
.u
.def
.section
))
10853 if (!load_store_relax
)
10856 /* Case for set gp register. */
10857 if (N32_RT5 (insn
) == REG_GP
)
10860 if (range_type
== NDS32_LOADSTORE_FLOAT_S
10861 || range_type
== NDS32_LOADSTORE_FLOAT_S
)
10863 range_l
= sdata_range
[0][0];
10864 range_h
= sdata_range
[0][1];
10868 range_l
= sdata_range
[1][0];
10869 range_h
= sdata_range
[1][1];
10873 case R_NDS32_GOT_HI20
:
10875 calculate_got_memory_address (abfd
, link_info
, hi_irelfn
, symtab_hdr
);
10877 /* If this symbol is not in .got, the return value will be -1.
10878 Since the gp value is set to SDA_BASE but not GLOBAL_OFFSET_TABLE,
10879 a negative offset is allowed. */
10880 if ((bfd_signed_vma
) (access_addr
- local_sda
) < CONSERVATIVE_20BIT
10881 && (bfd_signed_vma
) (access_addr
- local_sda
) >= -CONSERVATIVE_20BIT
)
10882 eliminate_sethi
= 1;
10885 case R_NDS32_PLT_GOTREL_HI20
:
10886 access_addr
= calculate_plt_memory_address (abfd
, link_info
, isymbuf
,
10887 hi_irelfn
, symtab_hdr
);
10889 if ((bfd_signed_vma
) (access_addr
- local_sda
) < CONSERVATIVE_20BIT
10890 && (bfd_signed_vma
) (access_addr
- local_sda
) >= -CONSERVATIVE_20BIT
)
10891 eliminate_sethi
= 1;
10894 case R_NDS32_GOTOFF_HI20
:
10896 calculate_memory_address (abfd
, hi_irelfn
, isymbuf
, symtab_hdr
);
10898 if ((bfd_signed_vma
) (access_addr
- local_sda
) < CONSERVATIVE_20BIT
10899 && (bfd_signed_vma
) (access_addr
- local_sda
) >= -CONSERVATIVE_20BIT
)
10900 eliminate_sethi
= 1;
10903 case R_NDS32_GOTPC_HI20
:
10904 /* The access_addr must consider r_addend of hi_irel. */
10905 access_addr
= sec
->output_section
->vma
+ sec
->output_offset
10906 + irel
->r_offset
+ hi_irelfn
->r_addend
;
10908 if ((bfd_signed_vma
) (local_sda
- access_addr
) < CONSERVATIVE_20BIT
10909 && (bfd_signed_vma
) (local_sda
- access_addr
) >= -CONSERVATIVE_20BIT
)
10910 eliminate_sethi
= 1;
10913 case R_NDS32_TLS_LE_HI20
:
10915 calculate_memory_address (abfd
, hi_irelfn
, isymbuf
, symtab_hdr
);
10916 BFD_ASSERT (elf_hash_table (link_info
)->tls_sec
!= NULL
);
10917 access_addr
-= (elf_hash_table (link_info
)->tls_sec
->vma
+ TP_OFFSET
);
10918 if ((range_type
== NDS32_LOADSTORE_IMM
)
10919 && (bfd_signed_vma
) (access_addr
) < CONSERVATIVE_20BIT
10920 && (bfd_signed_vma
) (access_addr
) >= -CONSERVATIVE_20BIT
)
10921 eliminate_sethi
= 1;
10928 /* Delete sethi instruction. */
10929 if (eliminate_sethi
== 1
10930 || (local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
10931 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
))
10933 hi_irelfn
->r_info
=
10934 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
10936 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10942 /* Relax LO12 relocation for nds32_elf_relax_section. */
10945 nds32_elf_relax_lo12 (struct bfd_link_info
*link_info
, bfd
*abfd
,
10946 asection
*sec
, Elf_Internal_Rela
*irel
,
10947 Elf_Internal_Rela
*internal_relocs
, bfd_byte
*contents
,
10948 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
)
10951 bfd_vma local_sda
, laddr
;
10952 unsigned long reloc
;
10953 bfd_vma access_addr
;
10954 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
10955 Elf_Internal_Rela
*irelfn
= NULL
, *irelend
;
10956 struct elf_link_hash_entry
*h
= NULL
;
10959 /* For SDA base relative relaxation. */
10960 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
10961 &local_sda
, FALSE
);
10963 irelend
= internal_relocs
+ sec
->reloc_count
;
10964 laddr
= irel
->r_offset
;
10965 insn
= bfd_getb32 (contents
+ laddr
);
10967 if (!is_sda_access_insn (insn
) && N32_OP6 (insn
) != N32_OP6_ORI
)
10970 access_addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
10972 if (ELF32_R_SYM (irel
->r_info
) >= symtab_hdr
->sh_info
)
10974 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
10975 h
= elf_sym_hashes (abfd
)[indx
];
10978 if (N32_OP6 (insn
) == N32_OP6_ORI
&& access_addr
< CONSERVATIVE_20BIT
10979 && (!h
|| (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) != 0)))
10981 reloc
= R_NDS32_20_RELA
;
10982 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
10983 insn
= N32_TYPE1 (MOVI
, N32_RT5 (insn
), 0);
10984 bfd_putb32 (insn
, contents
+ laddr
);
10986 /* This is avoid to relax symbol address which is fixed
10987 relocations. Ex: _stack. */
10988 else if (N32_OP6 (insn
) == N32_OP6_ORI
10989 && h
&& bfd_is_abs_section (h
->root
.u
.def
.section
))
10993 range_l
= sdata_range
[1][0];
10994 range_h
= sdata_range
[1][1];
10995 switch (ELF32_R_TYPE (irel
->r_info
))
10997 case R_NDS32_LO12S0_RELA
:
10998 reloc
= R_NDS32_SDA19S0_RELA
;
11000 case R_NDS32_LO12S1_RELA
:
11001 reloc
= R_NDS32_SDA18S1_RELA
;
11003 case R_NDS32_LO12S2_RELA
:
11004 reloc
= R_NDS32_SDA17S2_RELA
;
11006 case R_NDS32_LO12S2_DP_RELA
:
11007 range_l
= sdata_range
[0][0];
11008 range_h
= sdata_range
[0][1];
11009 reloc
= R_NDS32_SDA12S2_DP_RELA
;
11011 case R_NDS32_LO12S2_SP_RELA
:
11012 range_l
= sdata_range
[0][0];
11013 range_h
= sdata_range
[0][1];
11014 reloc
= R_NDS32_SDA12S2_SP_RELA
;
11020 /* There are range_h and range_l because linker has to promise
11021 all sections move cross one page together. */
11022 if ((local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
11023 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
))
11025 if (N32_OP6 (insn
) == N32_OP6_ORI
&& N32_RT5 (insn
) == REG_GP
)
11027 /* Maybe we should add R_NDS32_INSN16 reloc type here
11028 or manually do some optimization. sethi can't be
11029 eliminated when updating $gp so the relative ori
11030 needs to be preserved. */
11033 if (!turn_insn_to_sda_access (insn
, ELF32_R_TYPE (irel
->r_info
),
11036 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11037 bfd_putb32 (insn
, contents
+ laddr
);
11039 irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11041 /* SDA17 must keep INSN16 for converting fp_as_gp. */
11042 if (irelfn
!= irelend
&& reloc
!= R_NDS32_SDA17S2_RELA
)
11044 ELF32_R_INFO (ELF32_R_SYM (irelfn
->r_info
), R_NDS32_NONE
);
11051 /* Relax low part of PIC instruction pattern. */
11054 nds32_elf_relax_piclo12 (struct bfd_link_info
*link_info
, bfd
*abfd
,
11055 asection
*sec
, Elf_Internal_Rela
*irel
,
11056 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11057 Elf_Internal_Shdr
*symtab_hdr
)
11060 bfd_vma local_sda
, laddr
;
11061 bfd_signed_vma foff
;
11062 unsigned long reloc
;
11064 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11065 &local_sda
, FALSE
);
11066 laddr
= irel
->r_offset
;
11067 insn
= bfd_getb32 (contents
+ laddr
);
11069 if (N32_OP6 (insn
) != N32_OP6_ORI
)
11072 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOT_LO12
)
11074 foff
= calculate_got_memory_address (abfd
, link_info
, irel
,
11075 symtab_hdr
) - local_sda
;
11076 reloc
= R_NDS32_GOT20
;
11078 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLT_GOTREL_LO12
)
11080 foff
= calculate_plt_memory_address (abfd
, link_info
, isymbuf
, irel
,
11081 symtab_hdr
) - local_sda
;
11082 reloc
= R_NDS32_PLT_GOTREL_LO20
;
11084 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTOFF_LO12
)
11086 foff
= calculate_memory_address (abfd
, irel
, isymbuf
,
11087 symtab_hdr
) - local_sda
;
11088 reloc
= R_NDS32_GOTOFF
;
11090 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTPC_LO12
)
11092 foff
= local_sda
- sec
->output_section
->vma
+ sec
->output_offset
11093 + irel
->r_offset
+ irel
->r_addend
;
11094 reloc
= R_NDS32_GOTPC20
;
11099 if ((foff
< CONSERVATIVE_20BIT
) && (foff
>= -CONSERVATIVE_20BIT
))
11101 /* Turn into MOVI. */
11102 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11103 insn
= N32_TYPE1 (MOVI
, N32_RT5 (insn
), 0);
11104 bfd_putb32 (insn
, contents
+ laddr
);
11108 /* Relax low part of LE TLS instruction pattern. */
11111 nds32_elf_relax_letlslo12 (struct bfd_link_info
*link_info
, bfd
*abfd
,
11112 Elf_Internal_Rela
*irel
,
11113 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11114 Elf_Internal_Shdr
*symtab_hdr
)
11118 bfd_signed_vma foff
;
11119 unsigned long reloc
;
11121 laddr
= irel
->r_offset
;
11122 foff
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11123 BFD_ASSERT (elf_hash_table (link_info
)->tls_sec
!= NULL
);
11124 foff
-= (elf_hash_table (link_info
)->tls_sec
->vma
+ TP_OFFSET
);
11125 insn
= bfd_getb32 (contents
+ laddr
);
11127 if ( (bfd_signed_vma
) (foff
) < CONSERVATIVE_20BIT
11128 && (bfd_signed_vma
) (foff
) >= -CONSERVATIVE_20BIT
)
11130 /* Pattern sethi-ori transform to movi. */
11131 reloc
= R_NDS32_TLS_LE_20
;
11132 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11133 insn
= N32_TYPE1 (MOVI
, N32_RT5 (insn
), 0);
11134 bfd_putb32 (insn
, contents
+ laddr
);
11138 /* Relax LE TLS calculate address instruction pattern. */
11141 nds32_elf_relax_letlsadd (struct bfd_link_info
*link_info
, bfd
*abfd
,
11142 asection
*sec
, Elf_Internal_Rela
*irel
,
11143 Elf_Internal_Rela
*internal_relocs
,
11144 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11145 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11147 /* Local TLS non-pic
11148 sethi ta, hi20(symbol@tpoff) ; TLS_LE_HI20
11149 ori ta, ta, lo12(symbol@tpoff) ; TLS_LE_LO12
11150 add ra, ta, tp ; TLS_LE_ADD */
11154 bfd_signed_vma foff
;
11155 Elf_Internal_Rela
*i1_irelfn
, *irelend
;
11157 irelend
= internal_relocs
+ sec
->reloc_count
;
11158 laddr
= irel
->r_offset
;
11159 insn
= bfd_getb32 (contents
+ laddr
);
11160 i1_irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11161 R_NDS32_PTR_RESOLVED
);
11162 foff
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11163 BFD_ASSERT (elf_hash_table (link_info
)->tls_sec
!= NULL
);
11164 foff
-= (elf_hash_table (link_info
)->tls_sec
->vma
+ TP_OFFSET
);
11166 /* The range is +/-16k. */
11167 if ((bfd_signed_vma
) (foff
) < CONSERVATIVE_15BIT
11168 && (bfd_signed_vma
) (foff
) >= -CONSERVATIVE_15BIT
)
11170 /* Transform add to addi. */
11171 insn
= N32_TYPE2 (ADDI
, N32_RT5 (insn
), N32_RB5 (insn
), 0);
11173 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_TLS_LE_15S0
);
11175 bfd_putb32 (insn
, contents
+ laddr
);
11176 if (i1_irelfn
!= irelend
)
11178 i1_irelfn
->r_addend
|= 1;
11184 /* Relax LE TLS load store instruction pattern. */
11187 nds32_elf_relax_letlsls (struct bfd_link_info
*link_info
, bfd
*abfd
,
11188 asection
*sec
, Elf_Internal_Rela
*irel
,
11189 Elf_Internal_Rela
*internal_relocs
,
11190 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11191 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11196 bfd_signed_vma foff
;
11197 Elf_Internal_Rela
*i1_irelfn
, *irelend
;
11200 irelend
= internal_relocs
+ sec
->reloc_count
;
11201 laddr
= irel
->r_offset
;
11202 insn
= bfd_getb32 (contents
+ laddr
);
11203 i1_irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11204 R_NDS32_PTR_RESOLVED
);
11205 foff
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11206 BFD_ASSERT (elf_hash_table (link_info
)->tls_sec
!= NULL
);
11207 foff
-= (elf_hash_table (link_info
)->tls_sec
->vma
+ TP_OFFSET
);
11209 switch ((N32_OP6 (insn
) << 8) | (insn
& 0xff))
11211 case (N32_OP6_MEM
<< 8) | N32_MEM_LB
:
11212 case (N32_OP6_MEM
<< 8) | N32_MEM_SB
:
11213 case (N32_OP6_MEM
<< 8) | N32_MEM_LBS
:
11214 /* The range is +/-16k. */
11215 if ((bfd_signed_vma
) (foff
) < CONSERVATIVE_15BIT
11216 && (bfd_signed_vma
) (foff
) >= -CONSERVATIVE_15BIT
)
11219 ((insn
& 0xff) << 25) | (insn
& 0x1f00000) | ((insn
& 0x7c00) << 5);
11221 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_TLS_LE_15S0
);
11225 /* Fall through. */
11226 case (N32_OP6_MEM
<< 8) | N32_MEM_LH
:
11227 case (N32_OP6_MEM
<< 8) | N32_MEM_SH
:
11228 case (N32_OP6_MEM
<< 8) | N32_MEM_LHS
:
11229 /* The range is +/-32k. */
11230 if ((bfd_signed_vma
) (foff
) < CONSERVATIVE_15BIT_S1
11231 && (bfd_signed_vma
) (foff
) >= -CONSERVATIVE_15BIT_S1
)
11234 ((insn
& 0xff) << 25) | (insn
& 0x1f00000) | ((insn
& 0x7c00) << 5);
11236 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_TLS_LE_15S1
);
11240 /* Fall through. */
11241 case (N32_OP6_MEM
<< 8) | N32_MEM_LW
:
11242 case (N32_OP6_MEM
<< 8) | N32_MEM_SW
:
11243 /* The range is +/-64k. */
11244 if ((bfd_signed_vma
) (foff
) < CONSERVATIVE_15BIT_S2
11245 && (bfd_signed_vma
) (foff
) >= -CONSERVATIVE_15BIT_S2
)
11248 ((insn
& 0xff) << 25) | (insn
& 0x1f00000) | ((insn
& 0x7c00) << 5);
11250 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_TLS_LE_15S2
);
11254 /* Fall through. */
11261 bfd_putb32 (insn
, contents
+ laddr
);
11262 if (i1_irelfn
!= irelend
)
11264 i1_irelfn
->r_addend
|= 1;
11270 /* Relax PTR relocation for nds32_elf_relax_section. */
11273 nds32_elf_relax_ptr (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11274 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11275 int *seq_len
, bfd_byte
*contents
)
11277 Elf_Internal_Rela
*ptr_irel
, *irelend
, *count_irel
, *re_irel
;
11279 irelend
= internal_relocs
+ sec
->reloc_count
;
11282 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11283 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
11285 if (re_irel
== irelend
)
11287 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_PTR",
11288 (long) irel
->r_offset
);
11292 if (re_irel
->r_addend
!= 1)
11295 /* Pointed target is relaxed and no longer needs this void *,
11296 change the type to NONE. */
11297 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11299 /* Find PTR_COUNT to decide remove it or not. If PTR_COUNT does
11300 not exist, it means only count 1 and remove it directly. */
11301 /* TODO: I hope we can obsolate R_NDS32_COUNT in the future. */
11302 count_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11303 R_NDS32_PTR_COUNT
);
11304 ptr_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11306 if (count_irel
!= irelend
)
11308 if (--count_irel
->r_addend
> 0)
11312 if (ptr_irel
!= irelend
)
11315 /* If the PTR_COUNT is already 0, remove current instruction. */
11316 *seq_len
= nds32_elf_insn_size (abfd
, contents
, irel
->r_offset
);
11321 /* Relax PLT_GOT_SUFF relocation for nds32_elf_relax_section. */
11324 nds32_elf_relax_pltgot_suff (struct bfd_link_info
*link_info
, bfd
*abfd
,
11325 asection
*sec
, Elf_Internal_Rela
*irel
,
11326 Elf_Internal_Rela
*internal_relocs
,
11327 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11328 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11331 bfd_signed_vma foff
;
11332 Elf_Internal_Rela
*i1_irelfn
, *irelend
;
11333 bfd_vma local_sda
, laddr
;
11335 irelend
= internal_relocs
+ sec
->reloc_count
;
11336 laddr
= irel
->r_offset
;
11337 insn
= bfd_getb32 (contents
+ laddr
);
11339 /* FIXME: It's a little trouble to turn JRAL5 to JAL since
11340 we need additional space. It might be help if we could
11341 borrow some space from instructions to be eliminated
11342 such as sethi, ori, add. */
11343 if (insn
& 0x80000000)
11346 if (nds32_elf_check_dup_relocs
11347 (irel
, internal_relocs
, irelend
, R_NDS32_PLT_GOT_SUFF
))
11351 find_relocs_at_address (irel
, internal_relocs
, irelend
,
11352 R_NDS32_PTR_RESOLVED
);
11355 The boundary should be reduced since the .plt section hasn't
11356 been created and the address of specific entry is still unknown
11357 Maybe the range between the function call and the begin of the
11358 .text section can be used to decide if the .plt is in the range
11359 of function call. */
11361 if (N32_OP6 (insn
) == N32_OP6_ALU1
11362 && N32_SUB5 (insn
) == N32_ALU1_ADD
)
11364 /* Get the value of the symbol referred to by the reloc. */
11365 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11366 &local_sda
, FALSE
);
11367 foff
= (bfd_signed_vma
) (calculate_plt_memory_address
11368 (abfd
, link_info
, isymbuf
, irel
,
11369 symtab_hdr
) - local_sda
);
11370 /* This condition only happened when symbol is undefined. */
11374 if (foff
< -CONSERVATIVE_19BIT
|| foff
>= CONSERVATIVE_19BIT
)
11376 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
11377 R_NDS32_PLT_GOTREL_LO19
);
11379 insn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), __BIT (19));
11381 else if (N32_OP6 (insn
) == N32_OP6_JREG
11382 && N32_SUB5 (insn
) == N32_JREG_JRAL
)
11384 /* Get the value of the symbol referred to by the reloc. */
11386 calculate_plt_offset (abfd
, sec
, link_info
, isymbuf
, irel
, symtab_hdr
);
11387 /* This condition only happened when symbol is undefined. */
11390 if (foff
< -CONSERVATIVE_24BIT_S1
|| foff
>= CONSERVATIVE_24BIT_S1
)
11392 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_25_PLTREL
);
11398 bfd_putb32 (insn
, contents
+ laddr
);
11399 if (i1_irelfn
!= irelend
)
11401 i1_irelfn
->r_addend
|= 1;
11406 /* Relax GOT_SUFF relocation for nds32_elf_relax_section. */
11409 nds32_elf_relax_got_suff (struct bfd_link_info
*link_info
, bfd
*abfd
,
11410 asection
*sec
, Elf_Internal_Rela
*irel
,
11411 Elf_Internal_Rela
*internal_relocs
,
11412 bfd_byte
*contents
, Elf_Internal_Shdr
*symtab_hdr
,
11413 bfd_boolean
*again
)
11416 bfd_signed_vma foff
;
11417 Elf_Internal_Rela
*i1_irelfn
, *irelend
;
11418 bfd_vma local_sda
, laddr
;
11420 irelend
= internal_relocs
+ sec
->reloc_count
;
11421 laddr
= irel
->r_offset
;
11422 insn
= bfd_getb32 (contents
+ laddr
);
11423 if (insn
& 0x80000000)
11426 if (nds32_elf_check_dup_relocs
11427 (irel
, internal_relocs
, irelend
, R_NDS32_GOT_SUFF
))
11430 i1_irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11431 R_NDS32_PTR_RESOLVED
);
11433 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11434 &local_sda
, FALSE
);
11435 foff
= calculate_got_memory_address (abfd
, link_info
, irel
,
11436 symtab_hdr
) - local_sda
;
11438 if (foff
< CONSERVATIVE_19BIT
&& foff
>= -CONSERVATIVE_19BIT
)
11440 /* Turn LW to LWI.GP. Change relocation type to R_NDS32_GOT_REL. */
11441 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (6, 17, 3));
11443 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_GOT17S2_RELA
);
11444 bfd_putb32 (insn
, contents
+ laddr
);
11445 if (i1_irelfn
!= irelend
)
11447 i1_irelfn
->r_addend
|= 1;
11453 /* Relax PLT_GOT_SUFF relocation for nds32_elf_relax_section. */
11456 nds32_elf_relax_gotoff_suff (struct bfd_link_info
*link_info
, bfd
*abfd
,
11457 asection
*sec
, Elf_Internal_Rela
*irel
,
11458 Elf_Internal_Rela
*internal_relocs
,
11459 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11460 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11462 int opc_insn_gotoff
;
11464 bfd_signed_vma foff
;
11465 Elf_Internal_Rela
*i1_irelfn
, *i2_irelfn
, *irelend
;
11466 bfd_vma local_sda
, laddr
;
11468 irelend
= internal_relocs
+ sec
->reloc_count
;
11469 laddr
= irel
->r_offset
;
11470 insn
= bfd_getb32 (contents
+ laddr
);
11472 if (insn
& 0x80000000)
11475 if (nds32_elf_check_dup_relocs
11476 (irel
, internal_relocs
, irelend
, R_NDS32_GOTOFF_SUFF
))
11479 i1_irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11480 R_NDS32_PTR_RESOLVED
);
11481 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11482 &local_sda
, FALSE
);
11483 foff
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11484 foff
= foff
- local_sda
;
11486 if (foff
>= CONSERVATIVE_19BIT
|| foff
< -CONSERVATIVE_19BIT
)
11489 /* Concatenate opcode and sub-opcode for switch case.
11490 It may be MEM or ALU1. */
11491 opc_insn_gotoff
= (N32_OP6 (insn
) << 8) | (insn
& 0xff);
11492 switch (opc_insn_gotoff
)
11494 case (N32_OP6_MEM
<< 8) | N32_MEM_LW
:
11495 /* 4-byte aligned. */
11496 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (6, 17, 3));
11498 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA17S2_RELA
);
11500 case (N32_OP6_MEM
<< 8) | N32_MEM_SW
:
11501 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (7, 17, 3));
11503 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA17S2_RELA
);
11505 case (N32_OP6_MEM
<< 8) | N32_MEM_LH
:
11506 /* 2-byte aligned. */
11507 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), 0);
11509 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA18S1_RELA
);
11511 case (N32_OP6_MEM
<< 8) | N32_MEM_LHS
:
11512 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __BIT (18));
11514 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA18S1_RELA
);
11516 case (N32_OP6_MEM
<< 8) | N32_MEM_SH
:
11517 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __BIT (19));
11519 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA18S1_RELA
);
11521 case (N32_OP6_MEM
<< 8) | N32_MEM_LB
:
11522 /* 1-byte aligned. */
11523 insn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), 0);
11525 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA19S0_RELA
);
11527 case (N32_OP6_MEM
<< 8) | N32_MEM_LBS
:
11528 insn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), __BIT (19));
11530 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA19S0_RELA
);
11532 case (N32_OP6_MEM
<< 8) | N32_MEM_SB
:
11533 insn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), 0);
11535 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA19S0_RELA
);
11537 case (N32_OP6_ALU1
<< 8) | N32_ALU1_ADD
:
11538 insn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), __BIT (19));
11540 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA19S0_RELA
);
11546 bfd_putb32 (insn
, contents
+ laddr
);
11547 if (i1_irelfn
!= irelend
)
11549 i1_irelfn
->r_addend
|= 1;
11552 if ((i2_irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11553 R_NDS32_INSN16
)) != irelend
)
11554 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11559 nds32_relax_adjust_label (bfd
*abfd
, asection
*sec
,
11560 Elf_Internal_Rela
*internal_relocs
,
11561 bfd_byte
*contents
,
11562 nds32_elf_blank_t
**relax_blank_list
,
11563 int optimize
, int opt_size
)
11565 /* This code block is used to adjust 4-byte alignment by relax a pair
11566 of instruction a time.
11568 It recognizes three types of relocations.
11569 1. R_NDS32_LABEL - a aligment.
11570 2. R_NDS32_INSN16 - relax a 32-bit instruction to 16-bit.
11571 3. is_16bit_NOP () - remove a 16-bit instruction. */
11573 /* TODO: It seems currently implementation only support 4-byte aligment.
11574 We should handle any-aligment. */
11576 Elf_Internal_Rela
*insn_rel
= NULL
, *label_rel
= NULL
, *irel
;
11577 Elf_Internal_Rela
*tmp_rel
, *tmp2_rel
= NULL
;
11578 Elf_Internal_Rela rel_temp
;
11579 Elf_Internal_Rela
*irelend
;
11583 /* Checking for branch relaxation relies on the relocations to
11584 be sorted on 'r_offset'. This is not guaranteed so we must sort. */
11585 nds32_insertion_sort (internal_relocs
, sec
->reloc_count
,
11586 sizeof (Elf_Internal_Rela
), compar_reloc
);
11588 irelend
= internal_relocs
+ sec
->reloc_count
;
11590 /* Force R_NDS32_LABEL before R_NDS32_INSN16. */
11591 /* FIXME: Can we generate the right order in assembler?
11592 So we don't have to swapping them here. */
11594 for (label_rel
= internal_relocs
, insn_rel
= internal_relocs
;
11595 label_rel
< irelend
; label_rel
++)
11597 if (ELF32_R_TYPE (label_rel
->r_info
) != R_NDS32_LABEL
)
11600 /* Find the first reloc has the same offset with label_rel. */
11601 while (insn_rel
< irelend
&& insn_rel
->r_offset
< label_rel
->r_offset
)
11604 for (;insn_rel
< irelend
&& insn_rel
->r_offset
== label_rel
->r_offset
;
11606 /* Check if there were R_NDS32_INSN16 and R_NDS32_LABEL at the same
11608 if (ELF32_R_TYPE (insn_rel
->r_info
) == R_NDS32_INSN16
)
11611 if (insn_rel
< irelend
&& insn_rel
->r_offset
== label_rel
->r_offset
11612 && insn_rel
< label_rel
)
11614 /* Swap the two reloc if the R_NDS32_INSN16 is
11615 before R_NDS32_LABEL. */
11616 memcpy (&rel_temp
, insn_rel
, sizeof (Elf_Internal_Rela
));
11617 memcpy (insn_rel
, label_rel
, sizeof (Elf_Internal_Rela
));
11618 memcpy (label_rel
, &rel_temp
, sizeof (Elf_Internal_Rela
));
11624 /* If there were a sequence of R_NDS32_LABEL end up with .align 2
11625 or higher, remove other R_NDS32_LABEL with lower alignment.
11626 If an R_NDS32_INSN16 in between R_NDS32_LABELs must be converted,
11627 then the R_NDS32_LABEL sequence is broke. */
11628 for (tmp_rel
= internal_relocs
; tmp_rel
< irelend
; tmp_rel
++)
11630 if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_LABEL
)
11632 if (label_rel
== NULL
)
11634 if (tmp_rel
->r_addend
< 2)
11635 label_rel
= tmp_rel
;
11638 else if (tmp_rel
->r_addend
> 1)
11640 /* Remove all LABEL relocation from label_rel to tmp_rel
11641 including relocations with same offset as tmp_rel. */
11642 for (tmp2_rel
= label_rel
; tmp2_rel
< tmp_rel
11643 || tmp2_rel
->r_offset
== tmp_rel
->r_offset
; tmp2_rel
++)
11645 if (ELF32_R_TYPE (tmp2_rel
->r_info
) == R_NDS32_LABEL
11646 && tmp2_rel
->r_addend
< 2)
11648 ELF32_R_INFO (ELF32_R_SYM (tmp2_rel
->r_info
),
11654 else if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_INSN16
&& label_rel
)
11656 /* A new INSN16 which can be converted, so clear label_rel. */
11657 if (is_convert_32_to_16 (abfd
, sec
, tmp_rel
, internal_relocs
,
11659 || is_16bit_NOP (abfd
, sec
, tmp_rel
))
11666 /* Optimized for speed and nothing has not been relaxed.
11667 It's time to align labels.
11668 We may convert a 16-bit instruction right before a label to
11669 32-bit, in order to align the label if necessary
11670 all reloc entries has been sorted by r_offset. */
11671 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
11673 if (ELF32_R_TYPE (irel
->r_info
) != R_NDS32_INSN16
11674 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_LABEL
)
11677 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_INSN16
)
11679 /* A new INSN16 found, resize the old one. */
11680 if (is_convert_32_to_16
11681 (abfd
, sec
, irel
, internal_relocs
, irelend
, &insn16
)
11682 || is_16bit_NOP (abfd
, sec
, irel
))
11686 /* Previous INSN16 reloc exists, reduce its
11688 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
, internal_relocs
,
11691 nds32_elf_write_16 (abfd
, contents
, insn_rel
,
11692 internal_relocs
, irelend
, insn16
);
11694 if (!insert_nds32_elf_blank_recalc_total
11695 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
11698 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
11700 if (!insert_nds32_elf_blank_recalc_total
11701 (relax_blank_list
, insn_rel
->r_offset
, 2))
11705 ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
), R_NDS32_NONE
);
11707 /* Save the new one for later use. */
11711 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
11714 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
)
11716 /* Search for label. */
11717 int force_relax
= 0;
11719 /* Label on 16-bit instruction or optimization
11720 needless, just reset this reloc. */
11721 insn16
= bfd_getb16 (contents
+ irel
->r_offset
);
11722 if ((irel
->r_addend
& 0x1f) < 2 && (!optimize
|| (insn16
& 0x8000)))
11725 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11730 irel
->r_offset
- get_nds32_elf_blank_total (relax_blank_list
,
11731 irel
->r_offset
, 1);
11735 /* Check if there is case which can not be aligned. */
11736 if (irel
->r_addend
== 2 && address
& 0x2)
11741 /* Try to align this label. */
11743 if ((irel
->r_addend
& 0x1f) < 2)
11745 /* Check if there is a INSN16 at the same address.
11746 Label_rel always seats before insn_rel after
11749 /* Search for INSN16 at LABEL location. If INSN16 is at
11750 same location and this LABEL alignment is lower than 2,
11751 the INSN16 can be converted to 2-byte. */
11752 for (tmp_rel
= irel
;
11753 tmp_rel
< irelend
&& tmp_rel
->r_offset
== irel
->r_offset
;
11756 if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_INSN16
11757 && (is_convert_32_to_16
11758 (abfd
, sec
, tmp_rel
, internal_relocs
,
11760 || is_16bit_NOP (abfd
, sec
, tmp_rel
)))
11768 if (force_relax
|| irel
->r_addend
== 1 || address
& 0x2)
11770 /* Label not aligned. */
11771 /* Previous reloc exists, reduce its size to 16-bit. */
11772 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
,
11773 internal_relocs
, irelend
, &insn16
))
11775 nds32_elf_write_16 (abfd
, contents
, insn_rel
,
11776 internal_relocs
, irelend
, insn16
);
11778 if (!insert_nds32_elf_blank_recalc_total
11779 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
11782 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
11784 if (!insert_nds32_elf_blank_recalc_total
11785 (relax_blank_list
, insn_rel
->r_offset
, 2))
11790 /* INSN16 reloc is used. */
11796 sec
->size
- get_nds32_elf_blank_total (relax_blank_list
, sec
->size
, 0);
11797 if (insn_rel
&& (address
& 0x2 || opt_size
))
11799 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
, internal_relocs
,
11802 nds32_elf_write_16 (abfd
, contents
, insn_rel
, internal_relocs
,
11804 if (!insert_nds32_elf_blank_recalc_total
11805 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
11807 insn_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
),
11810 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
11812 if (!insert_nds32_elf_blank_recalc_total
11813 (relax_blank_list
, insn_rel
->r_offset
, 2))
11815 insn_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
),
11823 /* Pick relaxation round. */
11826 nds32_elf_pick_relax (bfd_boolean init
, asection
*sec
, bfd_boolean
*again
,
11827 struct elf_nds32_link_hash_table
*table
,
11828 struct bfd_link_info
*link_info
)
11830 static asection
*final_sec
, *first_sec
= NULL
;
11831 static bfd_boolean normal_again
= FALSE
;
11832 static bfd_boolean set
= FALSE
;
11833 static bfd_boolean first
= TRUE
;
11834 int round_table
[] = {
11835 NDS32_RELAX_NORMAL_ROUND
,
11836 NDS32_RELAX_JUMP_IFC_ROUND
,
11837 NDS32_RELAX_EX9_BUILD_ROUND
,
11838 NDS32_RELAX_EX9_REPLACE_ROUND
,
11840 static int pass
= 0;
11841 static int relax_round
;
11843 /* The new round. */
11844 if (init
&& first_sec
== sec
)
11847 normal_again
= FALSE
;
11852 /* Run an empty run to get the final section. */
11853 relax_round
= NDS32_RELAX_EMPTY_ROUND
;
11855 /* It has to enter relax again because we can
11856 not make sure what the final turn is. */
11865 /* Not reenter yet. */
11867 return relax_round
;
11870 relax_round
= round_table
[pass
];
11872 if (!init
&& relax_round
== NDS32_RELAX_NORMAL_ROUND
&& *again
)
11873 normal_again
= TRUE
;
11875 if (!init
&& final_sec
== sec
)
11877 switch (relax_round
)
11879 case NDS32_RELAX_NORMAL_ROUND
:
11882 /* Normal relaxation done. */
11883 if (table
->target_optimize
& NDS32_RELAX_JUMP_IFC_ON
)
11888 else if (table
->target_optimize
& NDS32_RELAX_EX9_ON
)
11890 pass
+= 2; /* NDS32_RELAX_EX9_BUILD_ROUND */
11893 else if (table
->ex9_import_file
)
11895 /* Import ex9 table. */
11896 if (table
->update_ex9_table
)
11897 pass
+= 2; /* NDS32_RELAX_EX9_BUILD_ROUND */
11899 pass
+= 3; /* NDS32_RELAX_EX9_REPLACE_ROUND */
11900 nds32_elf_ex9_import_table (link_info
);
11905 case NDS32_RELAX_JUMP_IFC_ROUND
:
11906 if (!nds32_elf_ifc_finish (link_info
))
11907 _bfd_error_handler (_("error: Jump IFC Fail."));
11908 if (table
->target_optimize
& NDS32_RELAX_EX9_ON
)
11914 case NDS32_RELAX_EX9_BUILD_ROUND
:
11915 nds32_elf_ex9_finish (link_info
);
11919 case NDS32_RELAX_EX9_REPLACE_ROUND
:
11920 if (table
->target_optimize
& NDS32_RELAX_JUMP_IFC_ON
)
11922 /* Do jump IFC optimization again. */
11923 if (!nds32_elf_ifc_finish (link_info
))
11924 _bfd_error_handler (_("error: Jump IFC Fail."));
11932 return relax_round
;
11936 nds32_elf_relax_section (bfd
*abfd
, asection
*sec
,
11937 struct bfd_link_info
*link_info
, bfd_boolean
*again
)
11939 nds32_elf_blank_t
*relax_blank_list
= NULL
;
11940 Elf_Internal_Shdr
*symtab_hdr
;
11941 Elf_Internal_Rela
*internal_relocs
;
11942 Elf_Internal_Rela
*irel
;
11943 Elf_Internal_Rela
*irelend
;
11944 Elf_Internal_Sym
*isymbuf
= NULL
;
11945 bfd_byte
*contents
= NULL
;
11946 bfd_boolean result
= TRUE
;
11952 /* Target dependnet option. */
11953 struct elf_nds32_link_hash_table
*table
;
11954 int load_store_relax
;
11957 relax_blank_list
= NULL
;
11961 /* Nothing to do for
11962 * relocatable link or
11963 * non-relocatable section or
11964 * non-code section or
11966 * no reloc entry. */
11967 if (bfd_link_relocatable (link_info
)
11968 || (sec
->flags
& SEC_RELOC
) == 0
11969 || (sec
->flags
& SEC_EXCLUDE
) == 1
11970 || (sec
->flags
& SEC_CODE
) == 0
11974 /* 09.12.11 Workaround. */
11975 /* We have to adjust align for R_NDS32_LABEL if needed.
11976 The adjust approach only can fix 2-byte align once. */
11977 if (sec
->alignment_power
> 2)
11980 /* The optimization type to do. */
11982 table
= nds32_elf_hash_table (link_info
);
11983 relax_round
= nds32_elf_pick_relax (TRUE
, sec
, again
, table
, link_info
);
11984 switch (relax_round
)
11986 case NDS32_RELAX_JUMP_IFC_ROUND
:
11987 /* Here is the entrance of ifc jump relaxation. */
11988 if (!nds32_elf_ifc_calc (link_info
, abfd
, sec
))
11990 nds32_elf_pick_relax (FALSE
, sec
, again
, table
, link_info
);
11993 case NDS32_RELAX_EX9_BUILD_ROUND
:
11994 /* Here is the entrance of ex9 relaxation. There are two pass of
11995 ex9 relaxation. The one is to traverse all instructions and build
11996 the hash table. The other one is to compare instructions and replace
11998 if (!nds32_elf_ex9_build_hash_table (abfd
, sec
, link_info
))
12000 nds32_elf_pick_relax (FALSE
, sec
, again
, table
, link_info
);
12003 case NDS32_RELAX_EX9_REPLACE_ROUND
:
12004 if (!nds32_elf_ex9_replace_instruction (link_info
, abfd
, sec
))
12008 case NDS32_RELAX_EMPTY_ROUND
:
12009 nds32_elf_pick_relax (FALSE
, sec
, again
, table
, link_info
);
12012 case NDS32_RELAX_NORMAL_ROUND
:
12014 if (sec
->reloc_count
== 0)
12019 /* The begining of general relaxation. */
12021 if (is_SDA_BASE_set
== 0)
12024 is_SDA_BASE_set
= 1;
12025 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
12027 relax_range_measurement (abfd
);
12030 if (is_ITB_BASE_set
== 0)
12032 /* Set the _ITB_BASE_. */
12033 if (!nds32_elf_ex9_itb_base (link_info
))
12035 _bfd_error_handler (_("%B: error: Cannot set _ITB_BASE_"), abfd
);
12036 bfd_set_error (bfd_error_bad_value
);
12040 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12041 /* Relocations MUST be kept in memory, because relaxation adjust them. */
12042 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
,
12043 TRUE
/* keep_memory */);
12044 if (internal_relocs
== NULL
)
12047 irelend
= internal_relocs
+ sec
->reloc_count
;
12048 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
12049 irelend
, R_NDS32_RELAX_ENTRY
);
12051 if (irel
== irelend
)
12054 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
)
12056 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG
)
12058 nds32_elf_pick_relax (FALSE
, sec
, again
, table
, link_info
);
12062 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_OPTIMIZE_FLAG
)
12065 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_OPTIMIZE_FOR_SPACE_FLAG
)
12069 load_store_relax
= table
->load_store_relax
;
12071 /* Get symbol table and section content. */
12072 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
12073 || !nds32_get_local_syms (abfd
, sec
, &isymbuf
))
12076 /* Do relax loop only when finalize is not done.
12077 Take care of relaxable relocs except INSN16. */
12078 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12080 int seq_len
; /* Original length of instruction sequence. */
12081 int insn_len
= 0; /* Final length of instruction sequence. */
12082 bfd_boolean removed
;
12085 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
12086 && (irel
->r_addend
& 0x1f) >= 2)
12089 /* Relocation Types
12090 R_NDS32_LONGCALL1 53
12091 R_NDS32_LONGCALL2 54
12092 R_NDS32_LONGCALL3 55
12093 R_NDS32_LONGJUMP1 56
12094 R_NDS32_LONGJUMP2 57
12095 R_NDS32_LONGJUMP3 58
12096 R_NDS32_LOADSTORE 59 */
12097 if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LONGCALL1
12098 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LOADSTORE
)
12099 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
12101 /* Relocation Types
12102 R_NDS32_LONGCALL4 107
12103 R_NDS32_LONGCALL5 108
12104 R_NDS32_LONGCALL6 109
12105 R_NDS32_LONGJUMP4 110
12106 R_NDS32_LONGJUMP5 111
12107 R_NDS32_LONGJUMP6 112
12108 R_NDS32_LONGJUMP7 113 */
12109 else if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LONGCALL4
12110 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LONGJUMP7
)
12113 /* Relocation Types
12114 R_NDS32_LO12S0_RELA 30
12115 R_NDS32_LO12S1_RELA 29
12116 R_NDS32_LO12S2_RELA 28
12117 R_NDS32_LO12S2_SP_RELA 71
12118 R_NDS32_LO12S2_DP_RELA 70
12119 R_NDS32_GOT_LO12 46
12120 R_NDS32_GOTOFF_LO12 50
12121 R_NDS32_PLTREL_LO12 65
12122 R_NDS32_PLT_GOTREL_LO12 67
12123 R_NDS32_17IFC_PCREL_RELA 96
12124 R_NDS32_GOT_SUFF 193
12125 R_NDS32_GOTOFF_SUFF 194
12126 R_NDS32_PLT_GOT_SUFF 195
12127 R_NDS32_MULCALL_SUFF 196
12129 else if ((ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LO12S0_RELA
12130 && ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LO12S2_RELA
)
12131 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_SP_RELA
12132 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_DP_RELA
12133 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOT_LO12
12134 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTOFF_LO12
12135 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTPC_LO12
12136 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLTREL_LO12
12137 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLT_GOTREL_LO12
12138 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_GOT_SUFF
12139 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_PTR
)
12140 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
12141 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_LO12
12142 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_ADD
12143 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_LS
)
12148 insn_len
= seq_len
;
12151 switch (ELF32_R_TYPE (irel
->r_info
))
12153 case R_NDS32_LONGCALL1
:
12154 removed
= nds32_elf_relax_longcall1 (abfd
, sec
, irel
, internal_relocs
,
12155 &insn_len
, contents
, isymbuf
,
12158 case R_NDS32_LONGCALL2
:
12159 removed
= nds32_elf_relax_longcall2 (abfd
, sec
, irel
, internal_relocs
,
12160 &insn_len
, contents
, isymbuf
,
12163 case R_NDS32_LONGCALL3
:
12164 removed
= nds32_elf_relax_longcall3 (abfd
, sec
, irel
, internal_relocs
,
12165 &insn_len
, contents
, isymbuf
,
12168 case R_NDS32_LONGJUMP1
:
12169 removed
= nds32_elf_relax_longjump1 (abfd
, sec
, irel
, internal_relocs
,
12170 &insn_len
, contents
, isymbuf
,
12173 case R_NDS32_LONGJUMP2
:
12174 removed
= nds32_elf_relax_longjump2 (abfd
, sec
, irel
, internal_relocs
,
12175 &insn_len
, contents
, isymbuf
,
12178 case R_NDS32_LONGJUMP3
:
12179 removed
= nds32_elf_relax_longjump3 (abfd
, sec
, irel
, internal_relocs
,
12180 &insn_len
, contents
, isymbuf
,
12183 case R_NDS32_LONGCALL4
:
12184 removed
= nds32_elf_relax_longcall4 (abfd
, sec
, irel
, internal_relocs
,
12185 &insn_len
, contents
, isymbuf
,
12188 case R_NDS32_LONGCALL5
:
12189 removed
= nds32_elf_relax_longcall5 (abfd
, sec
, irel
, internal_relocs
,
12190 &insn_len
, contents
, isymbuf
,
12193 case R_NDS32_LONGCALL6
:
12194 removed
= nds32_elf_relax_longcall6 (abfd
, sec
, irel
, internal_relocs
,
12195 &insn_len
, contents
, isymbuf
,
12198 case R_NDS32_LONGJUMP4
:
12199 removed
= nds32_elf_relax_longjump4 (abfd
, sec
, irel
, internal_relocs
,
12200 &insn_len
, contents
, isymbuf
,
12203 case R_NDS32_LONGJUMP5
:
12204 removed
= nds32_elf_relax_longjump5 (abfd
, sec
, irel
, internal_relocs
,
12205 &insn_len
, &seq_len
, contents
,
12206 isymbuf
, symtab_hdr
);
12208 case R_NDS32_LONGJUMP6
:
12209 removed
= nds32_elf_relax_longjump6 (abfd
, sec
, irel
, internal_relocs
,
12210 &insn_len
, &seq_len
, contents
,
12211 isymbuf
, symtab_hdr
);
12213 case R_NDS32_LONGJUMP7
:
12214 removed
= nds32_elf_relax_longjump7 (abfd
, sec
, irel
, internal_relocs
,
12215 &insn_len
, &seq_len
, contents
,
12216 isymbuf
, symtab_hdr
);
12218 case R_NDS32_LOADSTORE
:
12219 removed
= nds32_elf_relax_loadstore (link_info
, abfd
, sec
, irel
,
12220 internal_relocs
, &insn_len
,
12221 contents
, isymbuf
, symtab_hdr
,
12224 case R_NDS32_LO12S0_RELA
:
12225 case R_NDS32_LO12S1_RELA
:
12226 case R_NDS32_LO12S2_DP_RELA
:
12227 case R_NDS32_LO12S2_SP_RELA
:
12228 case R_NDS32_LO12S2_RELA
:
12229 /* Relax for low part. */
12230 nds32_elf_relax_lo12 (link_info
, abfd
, sec
, irel
, internal_relocs
,
12231 contents
, isymbuf
, symtab_hdr
);
12233 /* It is impossible to delete blank, so just continue. */
12235 case R_NDS32_GOT_LO12
:
12236 case R_NDS32_GOTOFF_LO12
:
12237 case R_NDS32_PLTREL_LO12
:
12238 case R_NDS32_PLT_GOTREL_LO12
:
12239 case R_NDS32_GOTPC_LO12
:
12240 /* Relax for PIC gp-relative low part. */
12241 nds32_elf_relax_piclo12 (link_info
, abfd
, sec
, irel
, contents
,
12242 isymbuf
, symtab_hdr
);
12244 /* It is impossible to delete blank, so just continue. */
12246 case R_NDS32_TLS_LE_LO12
:
12247 /* Relax for LE TLS low part. */
12248 nds32_elf_relax_letlslo12 (link_info
, abfd
, irel
, contents
,
12249 isymbuf
, symtab_hdr
);
12251 /* It is impossible to delete blank, so just continue. */
12253 case R_NDS32_TLS_LE_ADD
:
12254 nds32_elf_relax_letlsadd (link_info
, abfd
, sec
, irel
, internal_relocs
,
12255 contents
, isymbuf
, symtab_hdr
, again
);
12256 /* It is impossible to delete blank, so just continue. */
12258 case R_NDS32_TLS_LE_LS
:
12259 nds32_elf_relax_letlsls (link_info
, abfd
, sec
, irel
, internal_relocs
,
12260 contents
, isymbuf
, symtab_hdr
, again
);
12263 removed
= nds32_elf_relax_ptr (abfd
, sec
, irel
, internal_relocs
,
12264 &insn_len
, &seq_len
, contents
);
12266 case R_NDS32_PLT_GOT_SUFF
:
12267 nds32_elf_relax_pltgot_suff (link_info
, abfd
, sec
, irel
,
12268 internal_relocs
, contents
,
12269 isymbuf
, symtab_hdr
, again
);
12270 /* It is impossible to delete blank, so just continue. */
12272 case R_NDS32_GOT_SUFF
:
12273 nds32_elf_relax_got_suff (link_info
, abfd
, sec
, irel
,
12274 internal_relocs
, contents
,
12275 symtab_hdr
, again
);
12276 /* It is impossible to delete blank, so just continue. */
12278 case R_NDS32_GOTOFF_SUFF
:
12279 nds32_elf_relax_gotoff_suff (link_info
, abfd
, sec
, irel
,
12280 internal_relocs
, contents
,
12281 isymbuf
, symtab_hdr
, again
);
12282 /* It is impossible to delete blank, so just continue. */
12288 if (removed
&& seq_len
- insn_len
> 0)
12290 if (!insert_nds32_elf_blank
12291 (&relax_blank_list
, irel
->r_offset
+ insn_len
,
12292 seq_len
- insn_len
))
12298 calc_nds32_blank_total (relax_blank_list
);
12300 if (table
->relax_fp_as_gp
)
12302 if (!nds32_relax_fp_as_gp (link_info
, abfd
, sec
, internal_relocs
,
12306 if (*again
== FALSE
)
12308 if (!nds32_fag_remove_unused_fpbase (abfd
, sec
, internal_relocs
,
12314 nds32_elf_pick_relax (FALSE
, sec
, again
, table
, link_info
);
12316 if (*again
== FALSE
)
12318 if (!nds32_relax_adjust_label (abfd
, sec
, internal_relocs
, contents
,
12319 &relax_blank_list
, optimize
, opt_size
))
12323 /* It doesn't matter optimize_for_space_no_align anymore.
12324 If object file is assembled with flag '-Os',
12325 the we don't adjust jump-destination on 4-byte boundary. */
12327 if (relax_blank_list
)
12329 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
12330 relax_blank_list
= NULL
;
12333 if (*again
== FALSE
)
12335 /* Closing the section, so we don't relax it anymore. */
12336 bfd_vma sec_size_align
;
12337 Elf_Internal_Rela
*tmp_rel
;
12339 /* Pad to alignment boundary. Only handle current section alignment. */
12340 sec_size_align
= (sec
->size
+ (~((-1U) << sec
->alignment_power
)))
12341 & ((-1U) << sec
->alignment_power
);
12342 if ((sec_size_align
- sec
->size
) & 0x2)
12344 insn16
= NDS32_NOP16
;
12345 bfd_putb16 (insn16
, contents
+ sec
->size
);
12349 while (sec_size_align
!= sec
->size
)
12351 insn
= NDS32_NOP32
;
12352 bfd_putb32 (insn
, contents
+ sec
->size
);
12356 tmp_rel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
12357 irelend
, R_NDS32_RELAX_ENTRY
);
12358 if (tmp_rel
!= irelend
)
12359 tmp_rel
->r_addend
|= R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG
;
12361 clean_nds32_elf_blank ();
12365 if (internal_relocs
!= NULL
12366 && elf_section_data (sec
)->relocs
!= internal_relocs
)
12367 free (internal_relocs
);
12369 if (contents
!= NULL
12370 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
12373 if (isymbuf
!= NULL
&& symtab_hdr
->contents
!= (bfd_byte
*) isymbuf
)
12383 static struct bfd_elf_special_section
const nds32_elf_special_sections
[] =
12385 {".sdata", 6, -2, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
12386 {".sbss", 5, -2, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
12391 nds32_elf_output_arch_syms (bfd
*output_bfd ATTRIBUTE_UNUSED
,
12392 struct bfd_link_info
*info
,
12393 void *finfo ATTRIBUTE_UNUSED
,
12394 bfd_boolean (*func
) (void *, const char *,
12395 Elf_Internal_Sym
*,
12397 struct elf_link_hash_entry
*)
12400 FILE *sym_ld_script
= NULL
;
12401 struct elf_nds32_link_hash_table
*table
;
12403 table
= nds32_elf_hash_table (info
);
12404 sym_ld_script
= table
->sym_ld_script
;
12406 if (check_start_export_sym
)
12407 fprintf (sym_ld_script
, "}\n");
12412 static enum elf_reloc_type_class
12413 nds32_elf_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
12414 const asection
*rel_sec ATTRIBUTE_UNUSED
,
12415 const Elf_Internal_Rela
*rela
)
12417 switch ((int) ELF32_R_TYPE (rela
->r_info
))
12419 case R_NDS32_RELATIVE
:
12420 return reloc_class_relative
;
12421 case R_NDS32_JMP_SLOT
:
12422 return reloc_class_plt
;
12424 return reloc_class_copy
;
12426 return reloc_class_normal
;
12430 /* Put target dependent option into info hash table. */
12432 bfd_elf32_nds32_set_target_option (struct bfd_link_info
*link_info
,
12433 int relax_fp_as_gp
,
12434 int eliminate_gc_relocs
,
12435 FILE * sym_ld_script
, int load_store_relax
,
12436 int target_optimize
, int relax_status
,
12437 int relax_round
, FILE * ex9_export_file
,
12438 FILE * ex9_import_file
,
12439 int update_ex9_table
, int ex9_limit
,
12440 bfd_boolean ex9_loop_aware
,
12441 bfd_boolean ifc_loop_aware
)
12443 struct elf_nds32_link_hash_table
*table
;
12445 table
= nds32_elf_hash_table (link_info
);
12449 table
->relax_fp_as_gp
= relax_fp_as_gp
;
12450 table
->eliminate_gc_relocs
= eliminate_gc_relocs
;
12451 table
->sym_ld_script
= sym_ld_script
;
12452 table
->load_store_relax
= load_store_relax
;
12453 table
->target_optimize
= target_optimize
;
12454 table
->relax_status
= relax_status
;
12455 table
->relax_round
= relax_round
;
12456 table
->ex9_export_file
= ex9_export_file
;
12457 table
->ex9_import_file
= ex9_import_file
;
12458 table
->update_ex9_table
= update_ex9_table
;
12459 table
->ex9_limit
= ex9_limit
;
12460 table
->ex9_loop_aware
= ex9_loop_aware
;
12461 table
->ifc_loop_aware
= ifc_loop_aware
;
12464 /* These functions and data-structures are used for fp-as-gp
12467 #define FAG_THRESHOLD 3 /* At least 3 gp-access. */
12468 /* lwi37.fp covers 508 bytes, but there may be 32-byte padding between
12469 the read-only section and read-write section. */
12470 #define FAG_WINDOW (508 - 32)
12472 /* An nds32_fag represent a gp-relative access.
12473 We find best fp-base by using a sliding window
12474 to find a base address which can cover most gp-access. */
12477 struct nds32_fag
*next
; /* NULL-teminated linked list. */
12478 bfd_vma addr
; /* The address of this fag. */
12479 Elf_Internal_Rela
**relas
; /* The relocations associated with this fag.
12480 It is used for applying FP7U2_FLAG. */
12481 int count
; /* How many times this address is referred.
12482 There should be exactly `count' relocations
12484 int relas_capcity
; /* The buffer size of relas.
12485 We use an array instead of linked-list,
12486 and realloc is used to adjust buffer size. */
12490 nds32_fag_init (struct nds32_fag
*head
)
12492 memset (head
, 0, sizeof (struct nds32_fag
));
12496 nds32_fag_verify (struct nds32_fag
*head
)
12498 struct nds32_fag
*iter
;
12499 struct nds32_fag
*prev
;
12505 if (prev
&& prev
->addr
>= iter
->addr
)
12506 puts ("Bug in fp-as-gp insertion.");
12512 /* Insert a fag in ascending order.
12513 If a fag of the same address already exists,
12514 they are chained by relas array. */
12517 nds32_fag_insert (struct nds32_fag
*head
, bfd_vma addr
,
12518 Elf_Internal_Rela
* rel
)
12520 struct nds32_fag
*iter
;
12521 struct nds32_fag
*new_fag
;
12522 const int INIT_RELAS_CAP
= 4;
12525 iter
->next
&& iter
->next
->addr
<= addr
;
12527 /* Find somewhere to insert. */ ;
12529 /* `iter' will be equal to `head' if the list is empty. */
12530 if (iter
!= head
&& iter
->addr
== addr
)
12532 /* The address exists in the list.
12533 Insert `rel' into relocation list, relas. */
12535 /* Check whether relas is big enough. */
12536 if (iter
->count
>= iter
->relas_capcity
)
12538 iter
->relas_capcity
*= 2;
12539 iter
->relas
= bfd_realloc
12540 (iter
->relas
, iter
->relas_capcity
* sizeof (void *));
12542 iter
->relas
[iter
->count
++] = rel
;
12546 /* This is a new address. Create a fag node for it. */
12547 new_fag
= bfd_malloc (sizeof (struct nds32_fag
));
12548 memset (new_fag
, 0, sizeof (*new_fag
));
12549 new_fag
->addr
= addr
;
12550 new_fag
->count
= 1;
12551 new_fag
->next
= iter
->next
;
12552 new_fag
->relas_capcity
= INIT_RELAS_CAP
;
12553 new_fag
->relas
= (Elf_Internal_Rela
**)
12554 bfd_malloc (new_fag
->relas_capcity
* sizeof (void *));
12555 new_fag
->relas
[0] = rel
;
12556 iter
->next
= new_fag
;
12558 nds32_fag_verify (head
);
12562 nds32_fag_free_list (struct nds32_fag
*head
)
12564 struct nds32_fag
*iter
;
12569 struct nds32_fag
*tmp
= iter
;
12577 /* Find the best fp-base address.
12578 The relocation associated with that address is returned,
12579 so we can track the symbol instead of a fixed address.
12581 When relaxation, the address of an datum may change,
12582 because a text section is shrinked, so the data section
12583 moves forward. If the aligments of text and data section
12584 are different, their distance may change too.
12585 Therefore, tracking a fixed address is not appriate. */
12588 nds32_fag_find_base (struct nds32_fag
*head
, struct nds32_fag
**bestpp
)
12590 struct nds32_fag
*base
; /* First fag in the window. */
12591 struct nds32_fag
*last
; /* First fag outside the window. */
12592 int accu
= 0; /* Usage accumulation. */
12593 struct nds32_fag
*best
; /* Best fag. */
12594 int baccu
= 0; /* Best accumulation. */
12596 /* Use first fag for initial, and find the last fag in the window.
12598 In each iteration, we could simply subtract previous fag
12599 and accumulate following fags which are inside the window,
12600 untill we each the end. */
12602 if (head
->next
== NULL
)
12608 /* Initialize base. */
12612 last
&& last
->addr
< base
->addr
+ FAG_WINDOW
;
12614 accu
+= last
->count
;
12618 /* Record the best base in each iteration. */
12621 accu
-= base
->count
;
12623 /* Account fags in window. */
12624 for (/* Nothing. */;
12625 last
&& last
->addr
< base
->addr
+ FAG_WINDOW
;
12627 accu
+= last
->count
;
12629 /* A better fp-base? */
12642 /* Apply R_NDS32_INSN16_FP7U2_FLAG on gp-relative accesses,
12643 so we can convert it fo fp-relative access later.
12644 `best_fag' is the best fp-base. Only those inside the window
12645 of best_fag is applied the flag. */
12648 nds32_fag_mark_relax (struct bfd_link_info
*link_info
,
12649 bfd
*abfd
, struct nds32_fag
*best_fag
,
12650 Elf_Internal_Rela
*internal_relocs
,
12651 Elf_Internal_Rela
*irelend
)
12653 struct nds32_fag
*ifag
;
12654 bfd_vma best_fpbase
, gp
;
12657 output_bfd
= abfd
->sections
->output_section
->owner
;
12658 nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
12659 best_fpbase
= best_fag
->addr
;
12661 if (best_fpbase
> gp
+ sdata_range
[1][1]
12662 || best_fpbase
< gp
- sdata_range
[1][0])
12665 /* Mark these inside the window R_NDS32_INSN16_FP7U2_FLAG flag,
12666 so we know they can be converted to lwi37.fp. */
12667 for (ifag
= best_fag
;
12668 ifag
&& ifag
->addr
< best_fpbase
+ FAG_WINDOW
; ifag
= ifag
->next
)
12672 for (i
= 0; i
< ifag
->count
; i
++)
12674 Elf_Internal_Rela
*insn16_rel
;
12675 Elf_Internal_Rela
*fag_rel
;
12677 fag_rel
= ifag
->relas
[i
];
12679 /* Only if this is within the WINDOWS, FP7U2_FLAG
12682 insn16_rel
= find_relocs_at_address
12683 (fag_rel
, internal_relocs
, irelend
, R_NDS32_INSN16
);
12685 if (insn16_rel
!= irelend
)
12686 insn16_rel
->r_addend
= R_NDS32_INSN16_FP7U2_FLAG
;
12692 /* Reset INSN16 to clean fp as gp. */
12695 nds32_fag_unmark_relax (struct nds32_fag
*fag
,
12696 Elf_Internal_Rela
*internal_relocs
,
12697 Elf_Internal_Rela
*irelend
)
12699 struct nds32_fag
*ifag
;
12701 Elf_Internal_Rela
*insn16_rel
;
12702 Elf_Internal_Rela
*fag_rel
;
12704 for (ifag
= fag
; ifag
; ifag
= ifag
->next
)
12706 for (i
= 0; i
< ifag
->count
; i
++)
12708 fag_rel
= ifag
->relas
[i
];
12710 /* Restore the INSN16 relocation. */
12711 insn16_rel
= find_relocs_at_address
12712 (fag_rel
, internal_relocs
, irelend
, R_NDS32_INSN16
);
12714 if (insn16_rel
!= irelend
)
12715 insn16_rel
->r_addend
&= ~R_NDS32_INSN16_FP7U2_FLAG
;
12720 /* This is the main function of fp-as-gp optimization.
12721 It should be called by relax_section. */
12724 nds32_relax_fp_as_gp (struct bfd_link_info
*link_info
,
12725 bfd
*abfd
, asection
*sec
,
12726 Elf_Internal_Rela
*internal_relocs
,
12727 Elf_Internal_Rela
*irelend
,
12728 Elf_Internal_Sym
*isymbuf
)
12730 Elf_Internal_Rela
*begin_rel
= NULL
;
12731 Elf_Internal_Rela
*irel
;
12732 struct nds32_fag fag_head
;
12733 Elf_Internal_Shdr
*symtab_hdr
;
12734 bfd_byte
*contents
;
12735 bfd_boolean ifc_inside
= FALSE
;
12737 /* FIXME: Can we bfd_elf_link_read_relocs for the relocs? */
12739 /* Per-function fp-base selection.
12740 1. Create a list for all the gp-relative access.
12741 2. Base on those gp-relative address,
12742 find a fp-base which can cover most access.
12743 3. Use the fp-base for fp-as-gp relaxation.
12745 NOTE: If fp-as-gp is not worth to do, (e.g., less than 3 times),
12747 1. delete the `la $fp, _FP_BASE_' instruction and
12748 2. not convert lwi.gp to lwi37.fp.
12750 To delete the _FP_BASE_ instruction, we simply apply
12751 R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG flag in the r_addend to disable it.
12753 To suppress the conversion, we simply NOT to apply
12754 R_NDS32_INSN16_FP7U2_FLAG flag. */
12756 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12758 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
12759 || !nds32_get_local_syms (abfd
, sec
, &isymbuf
))
12762 /* Check whether it is worth for fp-as-gp optimization,
12763 i.e., at least 3 gp-load.
12765 Set R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG if we should NOT
12766 apply this optimization. */
12768 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12770 /* We recognize R_NDS32_RELAX_REGION_BEGIN/_END for the region.
12771 One we enter the begin of the region, we track all the LW/ST
12772 instructions, so when we leave the region, we try to find
12773 the best fp-base address for those LW/ST instructions. */
12775 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
12776 && (irel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
12778 /* Begin of the region. */
12780 /* xgettext:c-format */
12781 _bfd_error_handler (_("%B: Nested OMIT_FP in %A."), abfd
, sec
);
12784 nds32_fag_init (&fag_head
);
12785 ifc_inside
= FALSE
;
12787 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
12788 && (irel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
12791 struct nds32_fag
*best_fag
, *tmp_fag
;
12794 /* End of the region.
12795 Check whether it is worth to do fp-as-gp. */
12797 if (begin_rel
== NULL
)
12799 /* xgettext:c-format */
12800 _bfd_error_handler (_("%B: Unmatched OMIT_FP in %A."), abfd
, sec
);
12804 accu
= nds32_fag_find_base (&fag_head
, &best_fag
);
12806 /* Clean FP7U2_FLAG because they may set ever. */
12807 tmp_fag
= fag_head
.next
;
12808 nds32_fag_unmark_relax (tmp_fag
, internal_relocs
, irelend
);
12810 /* Check if it is worth, and FP_BASE is near enough to SDA_BASE. */
12811 if (accu
< FAG_THRESHOLD
12812 || !nds32_fag_mark_relax (link_info
, abfd
, best_fag
,
12813 internal_relocs
, irelend
))
12815 /* Not worth to do fp-as-gp. */
12816 begin_rel
->r_addend
|= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
;
12817 begin_rel
->r_addend
&= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG
;
12818 irel
->r_addend
|= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
;
12819 irel
->r_addend
&= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG
;
12820 nds32_fag_free_list (&fag_head
);
12825 /* R_SYM of R_NDS32_RELAX_REGION_BEGIN is not used by assembler,
12826 so we use it to record the distance to the reloction of best
12828 dist
= best_fag
->relas
[0] - begin_rel
;
12829 BFD_ASSERT (dist
> 0 && dist
< 0xffffff);
12830 /* Use high 16 bits of addend to record the _FP_BASE_ matched
12831 relocation. And get the base value when relocating. */
12832 begin_rel
->r_addend
&= (0x1 << 16) - 1;
12833 begin_rel
->r_addend
|= dist
<< 16;
12835 nds32_fag_free_list (&fag_head
);
12839 if (begin_rel
== NULL
|| ifc_inside
)
12840 /* Skip if we are not in the region of fp-as-gp. */
12843 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA15S2_RELA
12844 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA17S2_RELA
)
12849 /* A gp-relative access is found. Insert it to the fag-list. */
12851 /* Rt is necessary an RT3, so it can be converted to lwi37.fp. */
12852 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12853 if (!N32_IS_RT3 (insn
))
12856 addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
12857 nds32_fag_insert (&fag_head
, addr
, irel
);
12859 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA_FP7U2_RELA
)
12863 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
12864 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_10IFCU_PCREL_RELA
)
12866 /* Suppress fp as gp when encounter ifc. */
12874 /* Remove unused `la $fp, _FD_BASE_' instruction. */
12877 nds32_fag_remove_unused_fpbase (bfd
*abfd
, asection
*sec
,
12878 Elf_Internal_Rela
*internal_relocs
,
12879 Elf_Internal_Rela
*irelend
)
12881 Elf_Internal_Rela
*irel
;
12882 Elf_Internal_Shdr
*symtab_hdr
;
12883 bfd_byte
*contents
= NULL
;
12884 nds32_elf_blank_t
*relax_blank_list
= NULL
;
12885 bfd_boolean result
= TRUE
;
12886 bfd_boolean unused_region
= FALSE
;
12889 NOTE: Disable fp-as-gp if we encounter ifcall relocations.
12890 * R_NDS32_17IFC_PCREL_RELA
12891 * R_NDS32_10IFCU_PCREL_RELA
12896 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12897 nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
);
12899 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12901 /* To remove unused fp-base, we simply find the REGION_NOT_OMIT_FP
12902 we marked to in previous pass.
12903 DO NOT scan relocations again, since we've alreadly decided it
12904 and set the flag. */
12905 const char *syname
;
12909 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
12910 && (irel
->r_addend
& R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
))
12911 unused_region
= TRUE
;
12912 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
12913 && (irel
->r_addend
& R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
))
12914 unused_region
= FALSE
;
12916 /* We're not in the region. */
12917 if (!unused_region
)
12920 /* _FP_BASE_ must be a GLOBAL symbol. */
12921 syndx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
12922 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
12925 /* The symbol name must be _FP_BASE_. */
12926 syname
= elf_sym_hashes (abfd
)[syndx
]->root
.root
.string
;
12927 if (strcmp (syname
, FP_BASE_NAME
) != 0)
12930 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA19S0_RELA
)
12932 /* addi.gp $fp, -256 */
12933 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12934 if (insn
!= INSN_ADDIGP_TO_FP
)
12937 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA15S0_RELA
)
12939 /* addi $fp, $gp, -256 */
12940 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12941 if (insn
!= INSN_ADDI_GP_TO_FP
)
12944 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_20_RELA
)
12946 /* movi $fp, FP_BASE */
12947 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12948 if (insn
!= INSN_MOVI_TO_FP
)
12954 /* We got here because a FP_BASE instruction is found. */
12955 if (!insert_nds32_elf_blank_recalc_total
12956 (&relax_blank_list
, irel
->r_offset
, 4))
12961 if (relax_blank_list
)
12963 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
12964 relax_blank_list
= NULL
;
12973 /* This is a version of bfd_generic_get_relocated_section_contents.
12974 We need this variety because relaxation will modify the dwarf
12975 infomation. When there is undefined symbol reference error mesage,
12976 linker need to dump line number where the symbol be used. However
12977 the address is be relaxed, it can not get the original dwarf contents.
12978 The variety only modify function call for reading in the section. */
12981 nds32_elf_get_relocated_section_contents (bfd
*abfd
,
12982 struct bfd_link_info
*link_info
,
12983 struct bfd_link_order
*link_order
,
12985 bfd_boolean relocatable
,
12988 bfd
*input_bfd
= link_order
->u
.indirect
.section
->owner
;
12989 asection
*input_section
= link_order
->u
.indirect
.section
;
12991 arelent
**reloc_vector
;
12994 reloc_size
= bfd_get_reloc_upper_bound (input_bfd
, input_section
);
12995 if (reloc_size
< 0)
12998 /* Read in the section. */
12999 if (!nds32_get_section_contents (input_bfd
, input_section
, &data
, FALSE
))
13002 if (reloc_size
== 0)
13005 reloc_vector
= (arelent
**) bfd_malloc (reloc_size
);
13006 if (reloc_vector
== NULL
)
13009 reloc_count
= bfd_canonicalize_reloc (input_bfd
, input_section
,
13010 reloc_vector
, symbols
);
13011 if (reloc_count
< 0)
13014 if (reloc_count
> 0)
13017 for (parent
= reloc_vector
; *parent
!= NULL
; parent
++)
13019 char *error_message
= NULL
;
13021 bfd_reloc_status_type r
;
13023 symbol
= *(*parent
)->sym_ptr_ptr
;
13024 if (symbol
->section
&& discarded_section (symbol
->section
))
13027 static reloc_howto_type none_howto
13028 = HOWTO (0, 0, 0, 0, FALSE
, 0, complain_overflow_dont
, NULL
,
13029 "unused", FALSE
, 0, 0, FALSE
);
13031 p
= data
+ (*parent
)->address
* bfd_octets_per_byte (input_bfd
);
13032 _bfd_clear_contents ((*parent
)->howto
, input_bfd
, input_section
,
13034 (*parent
)->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
13035 (*parent
)->addend
= 0;
13036 (*parent
)->howto
= &none_howto
;
13040 r
= bfd_perform_relocation (input_bfd
, *parent
, data
,
13042 relocatable
? abfd
: NULL
,
13047 asection
*os
= input_section
->output_section
;
13049 /* A partial link, so keep the relocs. */
13050 os
->orelocation
[os
->reloc_count
] = *parent
;
13054 if (r
!= bfd_reloc_ok
)
13058 case bfd_reloc_undefined
:
13059 (*link_info
->callbacks
->undefined_symbol
)
13060 (link_info
, bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
13061 input_bfd
, input_section
, (*parent
)->address
, TRUE
);
13063 case bfd_reloc_dangerous
:
13064 BFD_ASSERT (error_message
!= NULL
);
13065 (*link_info
->callbacks
->reloc_dangerous
)
13066 (link_info
, error_message
,
13067 input_bfd
, input_section
, (*parent
)->address
);
13069 case bfd_reloc_overflow
:
13070 (*link_info
->callbacks
->reloc_overflow
)
13072 bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
13073 (*parent
)->howto
->name
, (*parent
)->addend
,
13074 input_bfd
, input_section
, (*parent
)->address
);
13076 case bfd_reloc_outofrange
:
13078 This error can result when processing some partially
13079 complete binaries. Do not abort, but issue an error
13080 message instead. */
13081 link_info
->callbacks
->einfo
13082 /* xgettext:c-format */
13083 (_("%X%P: %B(%A): relocation \"%R\" goes out of range\n"),
13084 abfd
, input_section
, * parent
);
13095 free (reloc_vector
);
13099 free (reloc_vector
);
13103 /* Link-time IFC relaxation.
13104 In this optimization, we chains jump instructions
13105 of the same destination with ifcall. */
13108 /* List to save jal and j relocation. */
13109 struct elf_nds32_ifc_symbol_entry
13112 struct elf_link_hash_entry
*h
;
13113 struct elf_nds32_ifc_irel_list
*irel_head
;
13114 unsigned long insn
;
13116 int enable
; /* Apply ifc. */
13117 int ex9_enable
; /* Apply ifc after ex9. */
13118 struct elf_nds32_ifc_symbol_entry
*next
;
13121 struct elf_nds32_ifc_irel_list
13123 Elf_Internal_Rela
*irel
;
13126 /* If this is set, then it is the last instruction for
13127 ifc-chain, so it must be keep for the actual branching. */
13129 struct elf_nds32_ifc_irel_list
*next
;
13132 static struct elf_nds32_ifc_symbol_entry
*ifc_symbol_head
= NULL
;
13134 /* Insert symbol of jal and j for ifc. */
13137 nds32_elf_ifc_insert_symbol (asection
*sec
,
13138 struct elf_link_hash_entry
*h
,
13139 Elf_Internal_Rela
*irel
,
13140 unsigned long insn
)
13142 struct elf_nds32_ifc_symbol_entry
*ptr
= ifc_symbol_head
;
13144 /* Check there is target of existing entry the same as the new one. */
13145 while (ptr
!= NULL
)
13147 if (((h
== NULL
&& ptr
->sec
== sec
13148 && ELF32_R_SYM (ptr
->irel_head
->irel
->r_info
) == ELF32_R_SYM (irel
->r_info
)
13149 && ptr
->irel_head
->irel
->r_addend
== irel
->r_addend
)
13152 && ptr
->insn
== insn
)
13154 /* The same target exist, so insert into list. */
13155 struct elf_nds32_ifc_irel_list
*irel_list
= ptr
->irel_head
;
13157 while (irel_list
->next
!= NULL
)
13158 irel_list
= irel_list
->next
;
13159 irel_list
->next
= bfd_malloc (sizeof (struct elf_nds32_ifc_irel_list
));
13160 irel_list
= irel_list
->next
;
13161 irel_list
->irel
= irel
;
13162 irel_list
->keep
= 1;
13165 irel_list
->sec
= NULL
;
13167 irel_list
->sec
= sec
;
13168 irel_list
->next
= NULL
;
13171 if (ptr
->next
== NULL
)
13176 /* There is no same target entry, so build a new one. */
13177 if (ifc_symbol_head
== NULL
)
13179 ifc_symbol_head
= bfd_malloc (sizeof (struct elf_nds32_ifc_symbol_entry
));
13180 ptr
= ifc_symbol_head
;
13184 ptr
->next
= bfd_malloc (sizeof (struct elf_nds32_ifc_symbol_entry
));
13189 ptr
->irel_head
= bfd_malloc (sizeof (struct elf_nds32_ifc_irel_list
));
13190 ptr
->irel_head
->irel
= irel
;
13192 ptr
->irel_head
->keep
= 1;
13196 /* Local symbols. */
13198 ptr
->irel_head
->sec
= NULL
;
13202 /* Global symbol. */
13204 ptr
->irel_head
->sec
= sec
;
13207 ptr
->irel_head
->next
= NULL
;
13210 ptr
->ex9_enable
= 0;
13214 /* Gather all jal and j instructions. */
13217 nds32_elf_ifc_calc (struct bfd_link_info
*info
,
13218 bfd
*abfd
, asection
*sec
)
13220 Elf_Internal_Rela
*internal_relocs
;
13221 Elf_Internal_Rela
*irelend
;
13222 Elf_Internal_Rela
*irel
;
13223 Elf_Internal_Shdr
*symtab_hdr
;
13224 bfd_byte
*contents
= NULL
;
13225 uint32_t insn
, insn_with_reg
;
13226 unsigned long r_symndx
;
13227 struct elf_link_hash_entry
*h
;
13228 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (abfd
);
13229 struct elf_nds32_link_hash_table
*table
;
13230 bfd_boolean ifc_loop_aware
;
13232 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
,
13233 TRUE
/* keep_memory */);
13234 irelend
= internal_relocs
+ sec
->reloc_count
;
13235 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
13237 /* Check if the object enable ifc. */
13238 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
, irelend
,
13239 R_NDS32_RELAX_ENTRY
);
13243 || ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
13244 || (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
13245 && !(irel
->r_addend
& R_NDS32_RELAX_ENTRY_IFC_FLAG
)))
13248 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
))
13251 table
= nds32_elf_hash_table (info
);
13252 ifc_loop_aware
= table
->ifc_loop_aware
;
13253 while (irel
!= NULL
&& irel
< irelend
)
13255 /* Traverse all relocation and gather all of them to build the list. */
13257 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
)
13259 if (ifc_loop_aware
== 1
13260 && (irel
->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
) != 0)
13262 /* Check the region if loop or not. If it is true and
13263 ifc-loop-aware is true, ignore the region till region end. */
13264 while (irel
!= NULL
13266 && (ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_END
13267 || (irel
->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
) != 0))
13272 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_25_PCREL_RELA
)
13274 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13275 nds32_elf_get_insn_with_reg (irel
, insn
, &insn_with_reg
);
13276 r_symndx
= ELF32_R_SYM (irel
->r_info
);
13277 if (r_symndx
< symtab_hdr
->sh_info
)
13279 /* Local symbol. */
13280 nds32_elf_ifc_insert_symbol (sec
, NULL
, irel
, insn_with_reg
);
13284 /* External symbol. */
13285 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
13286 nds32_elf_ifc_insert_symbol (sec
, h
, irel
, insn_with_reg
);
13294 /* Determine whether j and jal should be substituted. */
13297 nds32_elf_ifc_filter (struct bfd_link_info
*info
)
13299 struct elf_nds32_ifc_symbol_entry
*ptr
= ifc_symbol_head
;
13300 struct elf_nds32_ifc_irel_list
*irel_ptr
= NULL
;
13301 struct elf_nds32_ifc_irel_list
*irel_keeper
= NULL
;
13302 struct elf_nds32_link_hash_table
*table
;
13303 int target_optimize
;
13306 table
= nds32_elf_hash_table (info
);
13307 target_optimize
= table
->target_optimize
;
13310 irel_ptr
= ptr
->irel_head
;
13311 if (ptr
->h
== NULL
)
13313 /* Local symbol. */
13314 irel_keeper
= irel_ptr
;
13315 while (irel_ptr
&& irel_ptr
->next
)
13317 /* Check there is jump target can be used. */
13318 if ((irel_ptr
->next
->irel
->r_offset
13319 - irel_keeper
->irel
->r_offset
) > 1022)
13320 irel_keeper
= irel_ptr
->next
;
13324 irel_ptr
->keep
= 0;
13326 irel_ptr
= irel_ptr
->next
;
13331 /* Global symbol. */
13332 /* We have to get the absolute address and decide
13333 whether to keep it or not. */
13336 address
= (irel_ptr
->irel
->r_offset
13337 + irel_ptr
->sec
->output_section
->vma
13338 + irel_ptr
->sec
->output_offset
);
13339 irel_ptr
->addr
= address
;
13340 irel_ptr
= irel_ptr
->next
;
13343 irel_ptr
= ptr
->irel_head
;
13346 /* Sort by address. */
13347 struct elf_nds32_ifc_irel_list
*irel_dest
= irel_ptr
;
13348 struct elf_nds32_ifc_irel_list
*irel_temp
= irel_ptr
;
13349 struct elf_nds32_ifc_irel_list
*irel_ptr_prev
= NULL
;
13350 struct elf_nds32_ifc_irel_list
*irel_dest_prev
= NULL
;
13352 /* Get the smallest one. */
13353 while (irel_temp
->next
)
13355 if (irel_temp
->next
->addr
< irel_dest
->addr
)
13357 irel_dest_prev
= irel_temp
;
13358 irel_dest
= irel_temp
->next
;
13360 irel_temp
= irel_temp
->next
;
13363 if (irel_dest
!= irel_ptr
)
13366 irel_ptr_prev
->next
= irel_dest
;
13367 if (irel_dest_prev
)
13368 irel_dest_prev
->next
= irel_ptr
;
13369 irel_temp
= irel_ptr
->next
;
13370 irel_ptr
->next
= irel_dest
->next
;
13371 irel_dest
->next
= irel_temp
;
13373 irel_ptr_prev
= irel_ptr
;
13374 irel_ptr
= irel_ptr
->next
;
13377 irel_ptr
= ptr
->irel_head
;
13378 irel_keeper
= irel_ptr
;
13379 while (irel_ptr
&& irel_ptr
->next
)
13381 if ((irel_ptr
->next
->addr
- irel_keeper
->addr
) > 1022)
13382 irel_keeper
= irel_ptr
->next
;
13386 irel_ptr
->keep
= 0;
13388 irel_ptr
= irel_ptr
->next
;
13392 /* Ex9 enable. Reserve it for ex9. */
13393 if ((target_optimize
& NDS32_RELAX_EX9_ON
)
13394 && ptr
->irel_head
!= irel_keeper
)
13400 /* Determine whether j and jal should be substituted after ex9 done. */
13403 nds32_elf_ifc_filter_after_ex9 (void)
13405 struct elf_nds32_ifc_symbol_entry
*ptr
= ifc_symbol_head
;
13406 struct elf_nds32_ifc_irel_list
*irel_ptr
= NULL
;
13410 if (ptr
->enable
== 0)
13412 /* Check whether ifc is applied or not. */
13413 irel_ptr
= ptr
->irel_head
;
13414 ptr
->ex9_enable
= 1;
13417 if (ELF32_R_TYPE (irel_ptr
->irel
->r_info
) == R_NDS32_TRAN
)
13420 ptr
->ex9_enable
= 0;
13423 irel_ptr
= irel_ptr
->next
;
13430 /* Wrapper to do ifc relaxation. */
13433 nds32_elf_ifc_finish (struct bfd_link_info
*info
)
13436 struct elf_nds32_link_hash_table
*table
;
13438 table
= nds32_elf_hash_table (info
);
13439 relax_status
= table
->relax_status
;
13441 if (!(relax_status
& NDS32_RELAX_JUMP_IFC_DONE
))
13442 nds32_elf_ifc_filter (info
);
13444 nds32_elf_ifc_filter_after_ex9 ();
13446 if (!nds32_elf_ifc_replace (info
))
13450 table
->relax_status
|= NDS32_RELAX_JUMP_IFC_DONE
;
13454 /* Traverse the result of ifc filter and replace it with ifcall9. */
13457 nds32_elf_ifc_replace (struct bfd_link_info
*info
)
13459 struct elf_nds32_ifc_symbol_entry
*ptr
= ifc_symbol_head
;
13460 struct elf_nds32_ifc_irel_list
*irel_ptr
= NULL
;
13461 nds32_elf_blank_t
*relax_blank_list
= NULL
;
13462 bfd_byte
*contents
= NULL
;
13463 Elf_Internal_Rela
*internal_relocs
;
13464 Elf_Internal_Rela
*irel
;
13465 Elf_Internal_Rela
*irelend
;
13466 unsigned short insn16
= INSN_IFCALL9
;
13467 struct elf_nds32_link_hash_table
*table
;
13470 table
= nds32_elf_hash_table (info
);
13471 relax_status
= table
->relax_status
;
13475 /* Traverse the ifc gather list, and replace the
13476 filter entries by ifcall9. */
13477 if ((!(relax_status
& NDS32_RELAX_JUMP_IFC_DONE
) && ptr
->enable
== 1)
13478 || ((relax_status
& NDS32_RELAX_JUMP_IFC_DONE
)
13479 && ptr
->ex9_enable
== 1))
13481 irel_ptr
= ptr
->irel_head
;
13482 if (ptr
->h
== NULL
)
13484 /* Local symbol. */
13485 internal_relocs
= _bfd_elf_link_read_relocs
13486 (ptr
->sec
->owner
, ptr
->sec
, NULL
, NULL
, TRUE
/* keep_memory */);
13487 irelend
= internal_relocs
+ ptr
->sec
->reloc_count
;
13489 if (!nds32_get_section_contents (ptr
->sec
->owner
, ptr
->sec
,
13495 if (irel_ptr
->keep
== 0 && irel_ptr
->next
)
13497 /* The one can be replaced. We have to check whether
13498 there is any alignment point in the region. */
13499 irel
= irel_ptr
->irel
;
13500 while (((irel_ptr
->next
->keep
== 0
13501 && irel
< irel_ptr
->next
->irel
)
13502 || (irel_ptr
->next
->keep
== 1 && irel
< irelend
))
13503 && !(ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
13504 && (irel
->r_addend
& 0x1f) == 2))
13506 if (irel
>= irelend
13507 || !(ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
13508 && (irel
->r_addend
& 0x1f) == 2
13509 && ((irel
->r_offset
- get_nds32_elf_blank_total
13510 (&relax_blank_list
, irel
->r_offset
, 1))
13513 /* Replace by ifcall9. */
13514 bfd_putb16 (insn16
, contents
+ irel_ptr
->irel
->r_offset
);
13515 if (!insert_nds32_elf_blank_recalc_total
13516 (&relax_blank_list
, irel_ptr
->irel
->r_offset
+ 2, 2))
13518 irel_ptr
->irel
->r_info
=
13519 ELF32_R_INFO (ELF32_R_SYM (irel_ptr
->irel
->r_info
),
13520 R_NDS32_10IFCU_PCREL_RELA
);
13523 irel_ptr
= irel_ptr
->next
;
13526 /* Delete the redundant code. */
13527 if (relax_blank_list
)
13529 nds32_elf_relax_delete_blanks (ptr
->sec
->owner
, ptr
->sec
,
13531 relax_blank_list
= NULL
;
13536 /* Global symbol. */
13539 if (irel_ptr
->keep
== 0 && irel_ptr
->next
)
13541 /* The one can be replaced, and we have to check
13542 whether there is any alignment point in the region. */
13543 internal_relocs
= _bfd_elf_link_read_relocs
13544 (irel_ptr
->sec
->owner
, irel_ptr
->sec
, NULL
, NULL
,
13545 TRUE
/* keep_memory */);
13546 irelend
= internal_relocs
+ irel_ptr
->sec
->reloc_count
;
13547 if (!nds32_get_section_contents (irel_ptr
->sec
->owner
,
13548 irel_ptr
->sec
, &contents
,
13552 irel
= irel_ptr
->irel
;
13553 while (((irel_ptr
->sec
== irel_ptr
->next
->sec
13554 && irel_ptr
->next
->keep
== 0
13555 && irel
< irel_ptr
->next
->irel
)
13556 || ((irel_ptr
->sec
!= irel_ptr
->next
->sec
13557 || irel_ptr
->next
->keep
== 1)
13558 && irel
< irelend
))
13559 && !(ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
13560 && (irel
->r_addend
& 0x1f) == 2))
13562 if (irel
>= irelend
13563 || !(ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
13564 && (irel
->r_addend
& 0x1f) == 2
13565 && ((irel
->r_offset
13566 - get_nds32_elf_blank_total (&relax_blank_list
,
13567 irel
->r_offset
, 1)) & 0x02) == 0))
13569 /* Replace by ifcall9. */
13570 bfd_putb16 (insn16
, contents
+ irel_ptr
->irel
->r_offset
);
13571 if (!insert_nds32_elf_blank_recalc_total
13572 (&relax_blank_list
, irel_ptr
->irel
->r_offset
+ 2, 2))
13575 /* Delete the redundant code, and clear the relocation. */
13576 nds32_elf_relax_delete_blanks (irel_ptr
->sec
->owner
,
13579 irel_ptr
->irel
->r_info
=
13580 ELF32_R_INFO (ELF32_R_SYM (irel_ptr
->irel
->r_info
),
13581 R_NDS32_10IFCU_PCREL_RELA
);
13582 relax_blank_list
= NULL
;
13586 irel_ptr
= irel_ptr
->next
;
13596 /* Relocate ifcall. */
13599 nds32_elf_ifc_reloc (void)
13601 struct elf_nds32_ifc_symbol_entry
*ptr
= ifc_symbol_head
;
13602 struct elf_nds32_ifc_irel_list
*irel_ptr
= NULL
;
13603 struct elf_nds32_ifc_irel_list
*irel_keeper
= NULL
;
13604 bfd_vma relocation
, address
;
13605 unsigned short insn16
;
13606 bfd_byte
*contents
= NULL
;
13607 static bfd_boolean done
= FALSE
;
13616 /* Check the entry is enable ifcall. */
13617 if (ptr
->enable
== 1 || ptr
->ex9_enable
== 1)
13619 /* Get the reserve jump. */
13620 irel_ptr
= ptr
->irel_head
;
13623 if (irel_ptr
->keep
== 1)
13625 irel_keeper
= irel_ptr
;
13628 irel_ptr
= irel_ptr
->next
;
13631 irel_ptr
= ptr
->irel_head
;
13632 if (ptr
->h
== NULL
)
13634 /* Local symbol. */
13635 if (!nds32_get_section_contents (ptr
->sec
->owner
, ptr
->sec
,
13641 if (irel_ptr
->keep
== 0
13642 && ELF32_R_TYPE (irel_ptr
->irel
->r_info
) == R_NDS32_10IFCU_PCREL_RELA
)
13644 relocation
= irel_keeper
->irel
->r_offset
;
13645 relocation
= relocation
- irel_ptr
->irel
->r_offset
;
13646 while (irel_keeper
&& relocation
> 1022)
13648 irel_keeper
= irel_keeper
->next
;
13649 if (irel_keeper
&& irel_keeper
->keep
== 1)
13651 relocation
= irel_keeper
->irel
->r_offset
;
13652 relocation
= relocation
- irel_ptr
->irel
->r_offset
;
13655 if (relocation
> 1022)
13657 /* Double check. */
13658 irel_keeper
= ptr
->irel_head
;
13659 while (irel_keeper
)
13661 if (irel_keeper
->keep
== 1)
13663 relocation
= irel_keeper
->irel
->r_offset
;
13664 relocation
= relocation
- irel_ptr
->irel
->r_offset
;
13666 if (relocation
<= 1022)
13668 irel_keeper
= irel_keeper
->next
;
13673 irel_ptr
->irel
->r_info
=
13674 ELF32_R_INFO (ELF32_R_SYM (irel_ptr
->irel
->r_info
),
13676 insn16
= INSN_IFCALL9
| (relocation
>> 1);
13677 bfd_putb16 (insn16
, contents
+ irel_ptr
->irel
->r_offset
);
13679 irel_ptr
= irel_ptr
->next
;
13684 /* Global symbol. */
13687 if (irel_ptr
->keep
== 0
13688 && ELF32_R_TYPE (irel_ptr
->irel
->r_info
) == R_NDS32_10IFCU_PCREL_RELA
)
13690 /* Get the distance between ifcall and jump. */
13691 relocation
= (irel_keeper
->irel
->r_offset
13692 + irel_keeper
->sec
->output_section
->vma
13693 + irel_keeper
->sec
->output_offset
);
13694 address
= (irel_ptr
->irel
->r_offset
13695 + irel_ptr
->sec
->output_section
->vma
13696 + irel_ptr
->sec
->output_offset
);
13697 relocation
= relocation
- address
;
13699 /* The distance is over ragne, find callee again. */
13700 while (irel_keeper
&& relocation
> 1022)
13702 irel_keeper
= irel_keeper
->next
;
13703 if (irel_keeper
&& irel_keeper
->keep
==1)
13705 relocation
= (irel_keeper
->irel
->r_offset
13706 + irel_keeper
->sec
->output_section
->vma
13707 + irel_keeper
->sec
->output_offset
);
13708 relocation
= relocation
- address
;
13712 if (relocation
> 1022)
13714 /* Double check. */
13715 irel_keeper
= ptr
->irel_head
;
13716 while (irel_keeper
)
13718 if (irel_keeper
->keep
== 1)
13721 relocation
= (irel_keeper
->irel
->r_offset
13722 + irel_keeper
->sec
->output_section
->vma
13723 + irel_keeper
->sec
->output_offset
);
13724 relocation
= relocation
- address
;
13726 if (relocation
<= 1022)
13728 irel_keeper
= irel_keeper
->next
;
13733 if (!nds32_get_section_contents
13734 (irel_ptr
->sec
->owner
, irel_ptr
->sec
, &contents
, TRUE
))
13736 insn16
= INSN_IFCALL9
| (relocation
>> 1);
13737 bfd_putb16 (insn16
, contents
+ irel_ptr
->irel
->r_offset
);
13738 irel_ptr
->irel
->r_info
=
13739 ELF32_R_INFO (ELF32_R_SYM (irel_ptr
->irel
->r_info
),
13742 irel_ptr
=irel_ptr
->next
;
13752 /* End of IFC relaxation. */
13754 /* EX9 Instruction Table Relaxation. */
13756 /* Global hash list. */
13757 struct elf_link_hash_entry_list
13759 struct elf_link_hash_entry
*h
;
13760 struct elf_link_hash_entry_list
*next
;
13763 /* Save different destination but same insn. */
13764 struct elf_link_hash_entry_mul_list
13766 /* Global symbol times. */
13768 /* Save relocation for each global symbol but useful?? */
13769 Elf_Internal_Rela
*irel
;
13770 /* For sethi, two sethi may have the same high-part but different low-parts. */
13771 Elf_Internal_Rela rel_backup
;
13772 struct elf_link_hash_entry_list
*h_list
;
13773 struct elf_link_hash_entry_mul_list
*next
;
13776 /* Instruction hash table. */
13777 struct elf_nds32_code_hash_entry
13779 struct bfd_hash_entry root
;
13781 /* For insn that can use relocation or constant ex: sethi. */
13784 struct elf_link_hash_entry_mul_list
*m_list
;
13785 /* Using r_addend. */
13786 Elf_Internal_Rela
*irel
;
13787 /* Using r_info. */
13788 Elf_Internal_Rela rel_backup
;
13791 /* Instruction count list. */
13792 struct elf_nds32_insn_times_entry
13794 const char *string
;
13798 struct elf_link_hash_entry_mul_list
*m_list
;
13799 Elf_Internal_Rela
*irel
;
13800 Elf_Internal_Rela rel_backup
;
13801 struct elf_nds32_insn_times_entry
*next
;
13804 /* J and JAL symbol list. */
13805 struct elf_nds32_symbol_entry
13808 unsigned long insn
;
13809 struct elf_nds32_symbol_entry
*next
;
13812 /* Relocation list. */
13813 struct elf_nds32_irel_entry
13815 Elf_Internal_Rela
*irel
;
13816 struct elf_nds32_irel_entry
*next
;
13819 /* ex9.it insn need to be fixed. */
13820 struct elf_nds32_ex9_refix
13822 Elf_Internal_Rela
*irel
;
13824 struct elf_link_hash_entry
*h
;
13826 struct elf_nds32_ex9_refix
*next
;
13829 static struct bfd_hash_table ex9_code_table
;
13830 static struct elf_nds32_insn_times_entry
*ex9_insn_head
= NULL
;
13831 static struct elf_nds32_ex9_refix
*ex9_refix_head
= NULL
;
13833 /* EX9 hash function. */
13835 static struct bfd_hash_entry
*
13836 nds32_elf_code_hash_newfunc (struct bfd_hash_entry
*entry
,
13837 struct bfd_hash_table
*table
,
13838 const char *string
)
13840 struct elf_nds32_code_hash_entry
*ret
;
13842 /* Allocate the structure if it has not already been allocated by a
13846 entry
= (struct bfd_hash_entry
*)
13847 bfd_hash_allocate (table
, sizeof (*ret
));
13852 /* Call the allocation method of the superclass. */
13853 entry
= bfd_hash_newfunc (entry
, table
, string
);
13857 ret
= (struct elf_nds32_code_hash_entry
*) entry
;
13859 ret
->const_insn
= 0;
13860 ret
->m_list
= NULL
;
13866 /* Insert ex9 entry
13867 this insert must be stable sorted by times. */
13870 nds32_elf_ex9_insert_entry (struct elf_nds32_insn_times_entry
*ptr
)
13872 struct elf_nds32_insn_times_entry
*temp
;
13873 struct elf_nds32_insn_times_entry
*temp2
;
13875 if (ex9_insn_head
== NULL
)
13877 ex9_insn_head
= ptr
;
13882 temp
= ex9_insn_head
;
13883 temp2
= ex9_insn_head
;
13884 while (temp
->next
&&
13885 (temp
->next
->times
>= ptr
->times
13886 || temp
->times
== -1))
13888 if (temp
->times
== -1)
13892 if (ptr
->times
> temp
->times
&& temp
->times
!= -1)
13895 if (temp2
->times
== -1)
13898 ex9_insn_head
= ptr
;
13900 else if (temp
->next
== NULL
)
13907 ptr
->next
= temp
->next
;
13913 /* Examine each insn times in hash table.
13914 Handle multi-link hash entry.
13916 TODO: This function doesn't assign so much info since it is fake. */
13919 nds32_elf_examine_insn_times (struct elf_nds32_code_hash_entry
*h
)
13921 struct elf_nds32_insn_times_entry
*ptr
;
13924 if (h
->m_list
== NULL
)
13926 /* Local symbol insn or insn without relocation. */
13930 ptr
= (struct elf_nds32_insn_times_entry
*)
13931 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
13932 ptr
->times
= h
->times
;
13933 ptr
->string
= h
->root
.string
;
13934 ptr
->m_list
= NULL
;
13936 ptr
->irel
= h
->irel
;
13937 ptr
->rel_backup
= h
->rel_backup
;
13938 nds32_elf_ex9_insert_entry (ptr
);
13942 /* Global symbol insn. */
13943 /* Only sethi insn has multiple m_list. */
13944 struct elf_link_hash_entry_mul_list
*m_list
= h
->m_list
;
13949 times
+= m_list
->times
;
13950 m_list
= m_list
->next
;
13954 m_list
= h
->m_list
;
13955 ptr
= (struct elf_nds32_insn_times_entry
*)
13956 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
13957 ptr
->times
= times
; /* Use the total times. */
13958 ptr
->string
= h
->root
.string
;
13959 ptr
->m_list
= m_list
;
13961 ptr
->irel
= m_list
->irel
;
13962 ptr
->rel_backup
= m_list
->rel_backup
;
13963 nds32_elf_ex9_insert_entry (ptr
);
13965 if (h
->const_insn
== 1)
13967 /* sethi with constant value. */
13971 ptr
= (struct elf_nds32_insn_times_entry
*)
13972 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
13973 ptr
->times
= h
->times
;
13974 ptr
->string
= h
->root
.string
;
13975 ptr
->m_list
= NULL
;
13978 ptr
->rel_backup
= h
->rel_backup
;
13979 nds32_elf_ex9_insert_entry (ptr
);
13985 /* Count each insn times in hash table.
13986 Handle multi-link hash entry. */
13989 nds32_elf_count_insn_times (struct elf_nds32_code_hash_entry
*h
)
13991 int reservation
, times
;
13992 unsigned long relocation
, min_relocation
;
13993 struct elf_nds32_insn_times_entry
*ptr
;
13995 if (h
->m_list
== NULL
)
13997 /* Local symbol insn or insn without relocation. */
14000 ptr
= (struct elf_nds32_insn_times_entry
*)
14001 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
14002 ptr
->times
= h
->times
;
14003 ptr
->string
= h
->root
.string
;
14004 ptr
->m_list
= NULL
;
14006 ptr
->irel
= h
->irel
;
14007 ptr
->rel_backup
= h
->rel_backup
;
14008 nds32_elf_ex9_insert_entry (ptr
);
14012 /* Global symbol insn. */
14013 /* Only sethi insn has multiple m_list. */
14014 struct elf_link_hash_entry_mul_list
*m_list
= h
->m_list
;
14016 if (ELF32_R_TYPE (m_list
->rel_backup
.r_info
) == R_NDS32_HI20_RELA
14017 && m_list
->next
!= NULL
)
14019 /* Sethi insn has different symbol or addend but has same hi20. */
14023 min_relocation
= 0xffffffff;
14026 /* Get the minimum sethi address
14027 and calculate how many entry the sethi-list have to use. */
14028 if ((m_list
->h_list
->h
->root
.type
== bfd_link_hash_defined
14029 || m_list
->h_list
->h
->root
.type
== bfd_link_hash_defweak
)
14030 && (m_list
->h_list
->h
->root
.u
.def
.section
!= NULL
14031 && m_list
->h_list
->h
->root
.u
.def
.section
->output_section
!= NULL
))
14033 relocation
= (m_list
->h_list
->h
->root
.u
.def
.value
+
14034 m_list
->h_list
->h
->root
.u
.def
.section
->output_section
->vma
+
14035 m_list
->h_list
->h
->root
.u
.def
.section
->output_offset
);
14036 relocation
+= m_list
->irel
->r_addend
;
14040 if (relocation
< min_relocation
)
14041 min_relocation
= relocation
;
14042 times
+= m_list
->times
;
14043 m_list
= m_list
->next
;
14045 if (min_relocation
< ex9_relax_size
)
14046 reservation
= (min_relocation
>> 12) + 1;
14048 reservation
= (min_relocation
>> 12)
14049 - ((min_relocation
- ex9_relax_size
) >> 12) + 1;
14050 if (reservation
< (times
/ 3))
14052 /* Efficient enough to use ex9. */
14055 for (i
= reservation
; i
> 0; i
--)
14057 /* Allocate number of reservation ex9 entry. */
14058 ptr
= (struct elf_nds32_insn_times_entry
*)
14059 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
14060 ptr
->times
= h
->m_list
->times
/ reservation
;
14061 ptr
->string
= h
->root
.string
;
14062 ptr
->m_list
= h
->m_list
;
14064 ptr
->irel
= h
->m_list
->irel
;
14065 ptr
->rel_backup
= h
->m_list
->rel_backup
;
14066 nds32_elf_ex9_insert_entry (ptr
);
14072 /* Normal global symbol that means no different address symbol
14073 using same ex9 entry. */
14074 if (m_list
->times
>= 3)
14076 ptr
= (struct elf_nds32_insn_times_entry
*)
14077 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
14078 ptr
->times
= m_list
->times
;
14079 ptr
->string
= h
->root
.string
;
14080 ptr
->m_list
= h
->m_list
;
14082 ptr
->irel
= h
->m_list
->irel
;
14083 ptr
->rel_backup
= h
->m_list
->rel_backup
;
14084 nds32_elf_ex9_insert_entry (ptr
);
14088 if (h
->const_insn
== 1)
14090 /* sethi with constant value. */
14094 ptr
= (struct elf_nds32_insn_times_entry
*)
14095 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
14096 ptr
->times
= h
->times
;
14097 ptr
->string
= h
->root
.string
;
14098 ptr
->m_list
= NULL
;
14101 ptr
->rel_backup
= h
->rel_backup
;
14102 nds32_elf_ex9_insert_entry (ptr
);
14109 /* Hash table traverse function. */
14112 nds32_elf_code_hash_traverse (int (*func
) (struct elf_nds32_code_hash_entry
*))
14116 ex9_code_table
.frozen
= 1;
14117 for (i
= 0; i
< ex9_code_table
.size
; i
++)
14119 struct bfd_hash_entry
*p
;
14121 for (p
= ex9_code_table
.table
[i
]; p
!= NULL
; p
= p
->next
)
14122 if (!func ((struct elf_nds32_code_hash_entry
*) p
))
14126 ex9_code_table
.frozen
= 0;
14130 /* Give order number to insn list. */
14133 nds32_elf_order_insn_times (struct bfd_link_info
*info
)
14135 struct elf_nds32_insn_times_entry
*ex9_insn
;
14136 struct elf_nds32_insn_times_entry
*temp
= NULL
;
14137 struct elf_nds32_link_hash_table
*table
;
14141 if (ex9_insn_head
== NULL
)
14144 /* The max number of entries is 512. */
14145 ex9_insn
= ex9_insn_head
;
14146 table
= nds32_elf_hash_table (info
);
14147 ex9_limit
= table
->ex9_limit
;
14149 ex9_insn
= ex9_insn_head
;
14151 while (ex9_insn
!= NULL
&& number
< ex9_limit
)
14153 ex9_insn
->order
= number
;
14156 ex9_insn
= ex9_insn
->next
;
14159 if (ex9_insn
&& temp
)
14162 while (ex9_insn
!= NULL
)
14164 /* Free useless entry. */
14166 ex9_insn
= ex9_insn
->next
;
14171 /* Build .ex9.itable section. */
14174 nds32_elf_ex9_build_itable (struct bfd_link_info
*link_info
)
14176 asection
*table_sec
;
14177 struct elf_nds32_insn_times_entry
*ptr
;
14180 bfd_byte
*contents
= NULL
;
14182 for (it_abfd
= link_info
->input_bfds
; it_abfd
!= NULL
;
14183 it_abfd
= it_abfd
->link
.next
)
14185 /* Find the section .ex9.itable, and put all entries into it. */
14186 table_sec
= bfd_get_section_by_name (it_abfd
, ".ex9.itable");
14187 if (table_sec
!= NULL
)
14189 if (!nds32_get_section_contents (it_abfd
, table_sec
, &contents
, TRUE
))
14192 for (ptr
= ex9_insn_head
; ptr
!=NULL
; ptr
= ptr
->next
)
14195 table_sec
->size
= number
* 4;
14200 elf_elfheader (link_info
->output_bfd
)->e_flags
|= E_NDS32_HAS_EX9_INST
;
14202 for (ptr
= ex9_insn_head
; ptr
!=NULL
; ptr
= ptr
->next
)
14206 val
= strtol (ptr
->string
, NULL
, 16);
14207 bfd_putb32 ((bfd_vma
) val
, (char *) contents
+ (number
* 4));
14215 /* Get insn with regs according to relocation type. */
14218 nds32_elf_get_insn_with_reg (Elf_Internal_Rela
*irel
,
14219 uint32_t insn
, uint32_t *insn_with_reg
)
14221 reloc_howto_type
*howto
= NULL
;
14224 || (ELF32_R_TYPE (irel
->r_info
) >= (int) ARRAY_SIZE (nds32_elf_howto_table
)
14225 && (ELF32_R_TYPE (irel
->r_info
) - R_NDS32_RELAX_ENTRY
)
14226 >= (int) ARRAY_SIZE (nds32_elf_relax_howto_table
)))
14228 *insn_with_reg
= insn
;
14232 howto
= bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (irel
->r_info
));
14233 *insn_with_reg
= insn
& (0xffffffff ^ howto
->dst_mask
);
14236 /* Mask number of address bits according to relocation. */
14238 static unsigned long
14239 nds32_elf_irel_mask (Elf_Internal_Rela
*irel
)
14241 reloc_howto_type
*howto
= NULL
;
14244 || (ELF32_R_TYPE (irel
->r_info
) >= (int) ARRAY_SIZE (nds32_elf_howto_table
)
14245 && (ELF32_R_TYPE (irel
->r_info
) - R_NDS32_RELAX_ENTRY
)
14246 >= (int) ARRAY_SIZE (nds32_elf_relax_howto_table
)))
14249 howto
= bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (irel
->r_info
));
14250 return howto
->dst_mask
;
14254 nds32_elf_insert_irel_entry (struct elf_nds32_irel_entry
**irel_list
,
14255 struct elf_nds32_irel_entry
*irel_ptr
)
14257 if (*irel_list
== NULL
)
14259 *irel_list
= irel_ptr
;
14260 irel_ptr
->next
= NULL
;
14264 irel_ptr
->next
= *irel_list
;
14265 *irel_list
= irel_ptr
;
14270 nds32_elf_ex9_insert_fix (asection
* sec
, Elf_Internal_Rela
* irel
,
14271 struct elf_link_hash_entry
*h
, int order
)
14273 struct elf_nds32_ex9_refix
*ptr
;
14275 ptr
= bfd_malloc (sizeof (struct elf_nds32_ex9_refix
));
14279 ptr
->order
= order
;
14282 if (ex9_refix_head
== NULL
)
14283 ex9_refix_head
= ptr
;
14286 struct elf_nds32_ex9_refix
*temp
= ex9_refix_head
;
14288 while (temp
->next
!= NULL
)
14297 CLEAN_PRE
= 1 << 1,
14301 /* Check relocation type if supporting for ex9. */
14304 nds32_elf_ex9_relocation_check (struct bfd_link_info
*info
,
14305 Elf_Internal_Rela
**irel
,
14306 Elf_Internal_Rela
*irelend
,
14307 nds32_elf_blank_t
*relax_blank_list
,
14308 asection
*sec
,bfd_vma
*off
,
14309 bfd_byte
*contents
)
14311 /* Suppress ex9 if `.no_relax ex9' or inner loop. */
14312 bfd_boolean nested_ex9
, nested_loop
;
14313 bfd_boolean ex9_loop_aware
;
14314 /* We use the highest 1 byte of result to record
14315 how many bytes location counter has to move. */
14317 Elf_Internal_Rela
*irel_save
= NULL
;
14318 struct elf_nds32_link_hash_table
*table
;
14320 table
= nds32_elf_hash_table (info
);
14321 ex9_loop_aware
= table
->ex9_loop_aware
;
14323 while ((*irel
) != NULL
&& (*irel
) < irelend
&& *off
== (*irel
)->r_offset
)
14325 switch (ELF32_R_TYPE ((*irel
)->r_info
))
14327 case R_NDS32_RELAX_REGION_BEGIN
:
14328 /* Ignore code block. */
14329 nested_ex9
= FALSE
;
14330 nested_loop
= FALSE
;
14331 if (((*irel
)->r_addend
& R_NDS32_RELAX_REGION_NO_EX9_FLAG
)
14333 && ((*irel
)->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
)))
14335 /* Check the region if loop or not. If it is true and
14336 ex9-loop-aware is true, ignore the region till region end. */
14337 /* To save the status for in .no_relax ex9 region and
14338 loop region to conform the block can do ex9 relaxation. */
14339 nested_ex9
= ((*irel
)->r_addend
& R_NDS32_RELAX_REGION_NO_EX9_FLAG
);
14340 nested_loop
= (ex9_loop_aware
14341 && ((*irel
)->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
));
14342 while ((*irel
) && (*irel
) < irelend
&& (nested_ex9
|| nested_loop
))
14345 if (ELF32_R_TYPE ((*irel
)->r_info
) == R_NDS32_RELAX_REGION_BEGIN
)
14347 /* There may be nested region. */
14348 if (((*irel
)->r_addend
& R_NDS32_RELAX_REGION_NO_EX9_FLAG
) != 0)
14350 else if (ex9_loop_aware
14351 && ((*irel
)->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
))
14352 nested_loop
= TRUE
;
14354 else if (ELF32_R_TYPE ((*irel
)->r_info
) == R_NDS32_RELAX_REGION_END
)
14356 /* The end of region. */
14357 if (((*irel
)->r_addend
& R_NDS32_RELAX_REGION_NO_EX9_FLAG
) != 0)
14358 nested_ex9
= FALSE
;
14359 else if (ex9_loop_aware
14360 && ((*irel
)->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
))
14361 nested_loop
= FALSE
;
14363 else if (ELF32_R_TYPE ((*irel
)->r_info
) == R_NDS32_LABEL
14364 && ((*irel
)->r_addend
& 0x1f) == 2)
14366 /* Alignment exist in the region. */
14367 result
|= CLEAN_PRE
;
14368 if (((*irel
)->r_offset
-
14369 get_nds32_elf_blank_total (&relax_blank_list
,
14370 (*irel
)->r_offset
, 0)) & 0x02)
14371 result
|= PUSH_PRE
;
14374 if ((*irel
) >= irelend
)
14377 *off
= (*irel
)->r_offset
;
14379 /* The final instruction in the region, regard this one as data to ignore it. */
14380 result
|= DATA_EXIST
;
14385 case R_NDS32_LABEL
:
14386 if (((*irel
)->r_addend
& 0x1f) == 2)
14388 /* Check this point is align and decide to do ex9 or not. */
14389 result
|= CLEAN_PRE
;
14390 if (((*irel
)->r_offset
-
14391 get_nds32_elf_blank_total (&relax_blank_list
,
14392 (*irel
)->r_offset
, 0)) & 0x02)
14393 result
|= PUSH_PRE
;
14396 case R_NDS32_32_RELA
:
14398 result
|= (4 << 24);
14399 result
|= DATA_EXIST
;
14401 case R_NDS32_16_RELA
:
14403 result
|= (2 << 24);
14404 result
|= DATA_EXIST
;
14408 /* The least code alignment is 2. If the data is only one byte,
14409 we have to shift one more byte. */
14410 if ((*irel
)->r_addend
== 1)
14411 result
|= ((*irel
)->r_addend
<< 25) ;
14413 result
|= ((*irel
)->r_addend
<< 24) ;
14415 result
|= DATA_EXIST
;
14418 case R_NDS32_25_PCREL_RELA
:
14419 case R_NDS32_SDA16S3_RELA
:
14420 case R_NDS32_SDA15S3_RELA
:
14421 case R_NDS32_SDA15S3
:
14422 case R_NDS32_SDA17S2_RELA
:
14423 case R_NDS32_SDA15S2_RELA
:
14424 case R_NDS32_SDA12S2_SP_RELA
:
14425 case R_NDS32_SDA12S2_DP_RELA
:
14426 case R_NDS32_SDA15S2
:
14427 case R_NDS32_SDA18S1_RELA
:
14428 case R_NDS32_SDA15S1_RELA
:
14429 case R_NDS32_SDA15S1
:
14430 case R_NDS32_SDA19S0_RELA
:
14431 case R_NDS32_SDA15S0_RELA
:
14432 case R_NDS32_SDA15S0
:
14433 case R_NDS32_HI20_RELA
:
14434 case R_NDS32_LO12S0_ORI_RELA
:
14435 case R_NDS32_LO12S0_RELA
:
14436 case R_NDS32_LO12S1_RELA
:
14437 case R_NDS32_LO12S2_RELA
:
14438 /* These relocation is supported ex9 relaxation currently. */
14439 /* We have to save the relocation for using later, since we have
14440 to check there is any alignment in the same address. */
14444 /* Not support relocations. */
14445 if (ELF32_R_TYPE ((*irel
)->r_info
) < ARRAY_SIZE (nds32_elf_howto_table
)
14446 && ELF32_R_TYPE ((*irel
)->r_info
) != R_NDS32_NONE
14447 && ELF32_R_TYPE ((*irel
)->r_info
) != R_NDS32_INSN16
)
14449 /* Note: To optimize aggressively, it maybe can ignore R_NDS32_INSN16 here.
14450 But we have to consider if there is any side-effect. */
14451 if (!(result
& DATA_EXIST
))
14453 /* We have to confirm there is no data relocation in the
14454 same address. In general case, this won't happen. */
14455 /* We have to do ex9 conservative, for those relocation not
14456 considerd we ignore instruction. */
14457 result
|= DATA_EXIST
;
14458 if (*(contents
+ *off
) & 0x80)
14459 result
|= (2 << 24);
14461 result
|= (4 << 24);
14466 if ((*irel
) < irelend
14467 && ((*irel
) + 1) < irelend
14468 && (*irel
)->r_offset
== ((*irel
) + 1)->r_offset
)
14469 /* There are relocations pointing to the same address, we have to
14470 check all of them. */
14482 /* Replace with ex9 instruction. */
14485 nds32_elf_ex9_push_insn (uint16_t insn16
, bfd_byte
*contents
, bfd_vma pre_off
,
14486 nds32_elf_blank_t
**relax_blank_list
,
14487 struct elf_nds32_irel_entry
*pre_irel_ptr
,
14488 struct elf_nds32_irel_entry
**irel_list
)
14492 /* Implement the ex9 relaxation. */
14493 bfd_putb16 (insn16
, contents
+ pre_off
);
14494 if (!insert_nds32_elf_blank_recalc_total (relax_blank_list
,
14497 if (pre_irel_ptr
!= NULL
)
14498 nds32_elf_insert_irel_entry (irel_list
, pre_irel_ptr
);
14503 /* Replace input file instruction which is in ex9 itable. */
14506 nds32_elf_ex9_replace_instruction (struct bfd_link_info
*info
, bfd
*abfd
, asection
*sec
)
14508 struct elf_nds32_insn_times_entry
*ex9_insn
= ex9_insn_head
;
14509 bfd_byte
*contents
= NULL
;
14511 uint16_t insn16
, insn_ex9
;
14512 /* `pre_*' are used to track previous instruction that can use ex9.it. */
14513 bfd_vma pre_off
= -1;
14514 uint16_t pre_insn16
= 0;
14515 struct elf_nds32_irel_entry
*pre_irel_ptr
= NULL
;
14516 Elf_Internal_Rela
*internal_relocs
;
14517 Elf_Internal_Rela
*irel
;
14518 Elf_Internal_Rela
*irelend
;
14519 Elf_Internal_Shdr
*symtab_hdr
;
14520 Elf_Internal_Sym
*isym
= NULL
;
14521 nds32_elf_blank_t
*relax_blank_list
= NULL
;
14523 uint32_t insn_with_reg
= 0;
14525 uint32_t it_insn_with_reg
;
14526 unsigned long r_symndx
;
14528 struct elf_nds32_irel_entry
*irel_list
= NULL
;
14529 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (abfd
);
14530 int data_flag
, do_replace
, save_irel
;
14531 struct elf_link_hash_entry_list
*h_list
;
14534 /* Load section instructions, relocations, and symbol table. */
14535 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
14536 || !nds32_get_local_syms (abfd
, sec
, &isym
))
14539 _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
, TRUE
/* keep_memory */);
14540 irelend
= internal_relocs
+ sec
->reloc_count
;
14541 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
14545 /* Check if the object enable ex9. */
14546 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
14547 irelend
, R_NDS32_RELAX_ENTRY
);
14549 /* Check this section trigger ex9 relaxation. */
14552 || ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
14553 || (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
14554 && !(irel
->r_addend
& R_NDS32_RELAX_ENTRY_EX9_FLAG
)))
14557 irel
= internal_relocs
;
14559 /* Check alignment and fetch proper relocation. */
14560 while (off
< sec
->size
)
14562 struct elf_link_hash_entry
*h
= NULL
;
14563 struct elf_nds32_irel_entry
*irel_ptr
= NULL
;
14565 /* Syn the instruction and the relocation. */
14566 while (irel
!= NULL
&& irel
< irelend
&& irel
->r_offset
< off
)
14569 data_flag
= nds32_elf_ex9_relocation_check (info
, &irel
, irelend
,
14570 relax_blank_list
, sec
,
14572 if (data_flag
& PUSH_PRE
)
14573 if (!nds32_elf_ex9_push_insn (pre_insn16
, contents
, pre_off
,
14574 &relax_blank_list
, pre_irel_ptr
,
14578 if (data_flag
& CLEAN_PRE
)
14582 pre_irel_ptr
= NULL
;
14584 if (data_flag
& DATA_EXIST
)
14586 /* We save the move offset in the highest byte. */
14587 off
+= (data_flag
>> 24);
14591 if (*(contents
+ off
) & 0x80)
14593 /* 2-byte instruction. */
14598 /* Load the instruction and its opcode with register for comparing. */
14599 ex9_insn
= ex9_insn_head
;
14600 insn
= bfd_getb32 (contents
+ off
);
14604 it_insn
= strtol (ex9_insn
->string
, NULL
, 16);
14605 it_insn_with_reg
= 0;
14609 if (irel
!= NULL
&& irel
< irelend
&& irel
->r_offset
== off
)
14611 /* Insn with relocation. */
14612 nds32_elf_get_insn_with_reg (irel
, insn
, &insn_with_reg
);
14614 if (ex9_insn
->irel
!= NULL
)
14615 nds32_elf_get_insn_with_reg (ex9_insn
->irel
, it_insn
,
14616 &it_insn_with_reg
);
14618 if (ex9_insn
->irel
!= NULL
14619 && (ELF32_R_TYPE (irel
->r_info
) ==
14620 ELF32_R_TYPE (ex9_insn
->irel
->r_info
))
14621 && (insn_with_reg
== it_insn_with_reg
))
14623 /* Insn relocation and format is the same as table entry. */
14625 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_25_PCREL_RELA
14626 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S0_ORI_RELA
14627 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S0_RELA
14628 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S1_RELA
14629 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_RELA
14630 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3
14631 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0
)
14632 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3_RELA
14633 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0_RELA
)
14634 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA12S2_DP_RELA
14635 && ELF32_R_TYPE (irel
->r_info
) <=
14636 R_NDS32_SDA12S2_SP_RELA
)
14637 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA16S3_RELA
14638 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA19S0_RELA
))
14640 r_symndx
= ELF32_R_SYM (irel
->r_info
);
14641 if (r_symndx
< symtab_hdr
->sh_info
)
14643 /* Local symbol. */
14644 int shndx
= isym
[r_symndx
].st_shndx
;
14646 isec
= elf_elfsections (abfd
)[shndx
]->bfd_section
;
14647 if (ex9_insn
->sec
== isec
14648 && ex9_insn
->irel
->r_addend
== irel
->r_addend
14649 && ex9_insn
->irel
->r_info
== irel
->r_info
)
14657 /* External symbol. */
14658 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
14659 if (ex9_insn
->m_list
)
14661 h_list
= ex9_insn
->m_list
->h_list
;
14665 && (ex9_insn
->m_list
->irel
->r_addend
==
14672 h_list
= h_list
->next
;
14677 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_HI20_RELA
)
14679 r_symndx
= ELF32_R_SYM (irel
->r_info
);
14680 if (r_symndx
< symtab_hdr
->sh_info
)
14682 /* Local symbols. Compare its base symbol and offset. */
14683 int shndx
= isym
[r_symndx
].st_shndx
;
14685 isec
= elf_elfsections (abfd
)[shndx
]->bfd_section
;
14686 if (ex9_insn
->sec
== isec
14687 && ex9_insn
->irel
->r_addend
== irel
->r_addend
14688 && ex9_insn
->irel
->r_info
== irel
->r_info
)
14696 /* External symbol. */
14697 struct elf_link_hash_entry_mul_list
*m_list
;
14699 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
14700 m_list
= ex9_insn
->m_list
;
14704 h_list
= m_list
->h_list
;
14709 && (m_list
->irel
->r_addend
14710 == irel
->r_addend
))
14715 && ex9_insn
->m_list
14716 && ex9_insn
->m_list
== ex9_insn
->next
->m_list
)
14718 /* sethi multiple entry must be fixed */
14719 nds32_elf_ex9_insert_fix (sec
, irel
,
14720 h
, ex9_insn
->order
);
14724 h_list
= h_list
->next
;
14726 m_list
= m_list
->next
;
14732 /* Import table: Check the symbol hash table and the
14733 jump target. Only R_NDS32_25_PCREL_RELA now. */
14734 else if (ex9_insn
->times
== -1
14735 && ELF32_R_TYPE (irel
->r_info
) == R_NDS32_25_PCREL_RELA
)
14737 nds32_elf_get_insn_with_reg (irel
, it_insn
, &it_insn_with_reg
);
14738 if (insn_with_reg
== it_insn_with_reg
)
14741 bfd_vma relocation
;
14743 r_symndx
= ELF32_R_SYM (irel
->r_info
);
14744 if (r_symndx
>= symtab_hdr
->sh_info
)
14746 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
14747 if ((h
->root
.type
== bfd_link_hash_defined
14748 || h
->root
.type
== bfd_link_hash_defweak
)
14749 && h
->root
.u
.def
.section
!= NULL
14750 && h
->root
.u
.def
.section
->output_section
!= NULL
14751 && h
->root
.u
.def
.section
->gc_mark
== 1
14752 && bfd_is_abs_section (h
->root
.u
.def
.section
)
14753 && h
->root
.u
.def
.value
> sec
->size
)
14755 relocation
= h
->root
.u
.def
.value
+
14756 h
->root
.u
.def
.section
->output_section
->vma
+
14757 h
->root
.u
.def
.section
->output_offset
;
14758 relocation
+= irel
->r_addend
;
14759 insn
= insn_with_reg
14760 | ((relocation
>> 1) & 0xffffff);
14761 snprintf (code
, sizeof (code
), "%08x", insn
);
14762 if (strcmp (code
, ex9_insn
->string
) == 0)
14771 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
14772 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
14773 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
)
14775 /* These relocations do not have to relocate contens, so it can
14776 be regard as instruction without relocation. */
14777 if (insn
== it_insn
&& ex9_insn
->irel
== NULL
)
14783 /* Instruction without relocation, we only
14784 have to compare their byte code. */
14785 if (insn
== it_insn
&& ex9_insn
->irel
== NULL
)
14789 /* Insntruction match so replacing the code here. */
14790 if (do_replace
== 1)
14792 /* There are two formats of ex9 instruction. */
14793 if (ex9_insn
->order
< 32)
14794 insn_ex9
= INSN_EX9_IT_2
;
14796 insn_ex9
= INSN_EX9_IT_1
;
14797 insn16
= insn_ex9
| ex9_insn
->order
;
14799 /* Insert ex9 instruction. */
14800 nds32_elf_ex9_push_insn (pre_insn16
, contents
, pre_off
,
14801 &relax_blank_list
, pre_irel_ptr
,
14804 pre_insn16
= insn16
;
14808 /* For instuction with relocation do relax. */
14809 irel_ptr
= (struct elf_nds32_irel_entry
*)
14810 bfd_malloc (sizeof (struct elf_nds32_irel_entry
));
14811 irel_ptr
->irel
= irel
;
14812 irel_ptr
->next
= NULL
;
14813 pre_irel_ptr
= irel_ptr
;
14816 pre_irel_ptr
= NULL
;
14819 ex9_insn
= ex9_insn
->next
;
14824 /* Insert ex9 instruction. */
14825 nds32_elf_ex9_push_insn (pre_insn16
, contents
, pre_off
,
14826 &relax_blank_list
, pre_irel_ptr
,
14829 /* Delete the redundant code. */
14830 if (relax_blank_list
)
14832 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
14833 relax_blank_list
= NULL
;
14836 /* Clear the relocation that is replaced by ex9. */
14839 struct elf_nds32_irel_entry
*irel_ptr
;
14841 irel_ptr
= irel_list
;
14842 irel_list
= irel_ptr
->next
;
14843 irel_ptr
->irel
->r_info
=
14844 ELF32_R_INFO (ELF32_R_SYM (irel_ptr
->irel
->r_info
), R_NDS32_TRAN
);
14850 /* Initialize ex9 hash table. */
14853 nds32_elf_ex9_init (void)
14855 if (!bfd_hash_table_init_n (&ex9_code_table
, nds32_elf_code_hash_newfunc
,
14856 sizeof (struct elf_nds32_code_hash_entry
),
14859 _bfd_error_handler (_("Linker: cannot init ex9 hash table error \n"));
14865 /* Predict how many bytes will be relaxed with ex9 and ifc. */
14868 nds32_elf_ex9_total_relax (struct bfd_link_info
*info
)
14870 struct elf_nds32_insn_times_entry
*ex9_insn
;
14871 struct elf_nds32_insn_times_entry
*temp
;
14872 int target_optimize
;
14873 struct elf_nds32_link_hash_table
*table
;
14875 if (ex9_insn_head
== NULL
)
14878 table
= nds32_elf_hash_table (info
);
14879 target_optimize
= table
->target_optimize
;
14880 ex9_insn
= ex9_insn_head
;
14883 ex9_relax_size
= ex9_insn
->times
* 2 + ex9_relax_size
;
14885 ex9_insn
= ex9_insn
->next
;
14888 ex9_insn_head
= NULL
;
14890 if ((target_optimize
& NDS32_RELAX_JUMP_IFC_ON
))
14892 /* Examine ifc reduce size. */
14893 struct elf_nds32_ifc_symbol_entry
*ifc_ent
= ifc_symbol_head
;
14894 struct elf_nds32_ifc_irel_list
*irel_ptr
= NULL
;
14899 if (ifc_ent
->enable
== 0)
14902 irel_ptr
= ifc_ent
->irel_head
;
14906 irel_ptr
= irel_ptr
->next
;
14910 ifc_ent
= ifc_ent
->next
;
14912 ex9_relax_size
+= size
;
14916 /* Finish ex9 table. */
14919 nds32_elf_ex9_finish (struct bfd_link_info
*link_info
)
14921 nds32_elf_code_hash_traverse (nds32_elf_examine_insn_times
);
14922 nds32_elf_order_insn_times (link_info
);
14923 nds32_elf_ex9_total_relax (link_info
);
14924 /* Traverse the hash table and count its times. */
14925 nds32_elf_code_hash_traverse (nds32_elf_count_insn_times
);
14926 nds32_elf_order_insn_times (link_info
);
14927 nds32_elf_ex9_build_itable (link_info
);
14930 /* Relocate the entries in ex9 table. */
14933 nds32_elf_ex9_reloc_insn (struct elf_nds32_insn_times_entry
*ptr
,
14934 struct bfd_link_info
*link_info
)
14936 Elf_Internal_Sym
*isym
= NULL
;
14937 bfd_vma relocation
= -1;
14938 struct elf_link_hash_entry
*h
;
14940 if (ptr
->m_list
!= NULL
)
14942 /* Global symbol. */
14943 h
= ptr
->m_list
->h_list
->h
;
14944 if ((h
->root
.type
== bfd_link_hash_defined
14945 || h
->root
.type
== bfd_link_hash_defweak
)
14946 && h
->root
.u
.def
.section
!= NULL
14947 && h
->root
.u
.def
.section
->output_section
!= NULL
)
14950 relocation
= h
->root
.u
.def
.value
+
14951 h
->root
.u
.def
.section
->output_section
->vma
+
14952 h
->root
.u
.def
.section
->output_offset
;
14953 relocation
+= ptr
->m_list
->irel
->r_addend
;
14958 else if (ptr
->sec
!=NULL
)
14960 /* Local symbol. */
14961 Elf_Internal_Sym sym
;
14962 asection
*sec
= NULL
;
14964 asection
*isec_ptr
= &isec
;
14965 Elf_Internal_Rela irel_backup
= *(ptr
->irel
);
14966 asection
*sec_backup
= ptr
->sec
;
14967 bfd
*abfd
= ptr
->sec
->owner
;
14969 if (!nds32_get_local_syms (abfd
, sec
, &isym
))
14971 isym
= isym
+ ELF32_R_SYM (ptr
->irel
->r_info
);
14973 sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
14978 /* The purpose is same as elf_link_input_bfd. */
14979 if (isec_ptr
!= NULL
14980 && isec_ptr
->sec_info_type
== SEC_INFO_TYPE_MERGE
14981 && ELF_ST_TYPE (isym
->st_info
) != STT_SECTION
)
14984 _bfd_merged_section_offset (ptr
->sec
->output_section
->owner
, &isec_ptr
,
14985 elf_section_data (isec_ptr
)->sec_info
,
14988 relocation
= _bfd_elf_rela_local_sym (link_info
->output_bfd
, &sym
,
14989 &ptr
->sec
, ptr
->irel
);
14990 if (ptr
->irel
!= NULL
)
14991 relocation
+= ptr
->irel
->r_addend
;
14993 /* Restore origin value since there may be some insntructions that
14994 could not be replaced with ex9.it. */
14995 *(ptr
->irel
) = irel_backup
;
14996 ptr
->sec
= sec_backup
;
15002 /* Import ex9 table and build list. */
15005 nds32_elf_ex9_import_table (struct bfd_link_info
*info
)
15008 bfd_byte
*contents
;
15009 unsigned long insn
;
15010 FILE *ex9_import_file
;
15011 int update_ex9_table
;
15012 struct elf_nds32_link_hash_table
*table
;
15014 table
= nds32_elf_hash_table (info
);
15015 ex9_import_file
= table
->ex9_import_file
;
15016 rewind (table
->ex9_import_file
);
15018 contents
= bfd_malloc (sizeof (bfd_byte
) * 4);
15020 /* Read instructions from the input file and build the list. */
15021 while (!feof (ex9_import_file
))
15024 struct elf_nds32_insn_times_entry
*ptr
;
15027 nread
= fread (contents
, sizeof (bfd_byte
) * 4, 1, ex9_import_file
);
15028 /* Ignore the final byte 0x0a. */
15031 insn
= bfd_getb32 (contents
);
15032 code
= bfd_malloc (sizeof (char) * 9);
15033 snprintf (code
, 9, "%08lx", insn
);
15034 ptr
= bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
15035 ptr
->string
= code
;
15039 ptr
->m_list
= NULL
;
15040 ptr
->rel_backup
.r_offset
= 0;
15041 ptr
->rel_backup
.r_info
= 0;
15042 ptr
->rel_backup
.r_addend
= 0;
15045 nds32_elf_ex9_insert_entry (ptr
);
15049 update_ex9_table
= table
->update_ex9_table
;
15050 if (update_ex9_table
== 1)
15052 /* It has to consider of sethi need to use multiple page
15053 but it not be done yet. */
15054 nds32_elf_code_hash_traverse (nds32_elf_examine_insn_times
);
15055 nds32_elf_order_insn_times (info
);
15059 /* Export ex9 table. */
15062 nds32_elf_ex9_export (struct bfd_link_info
*info
,
15063 bfd_byte
*contents
, int size
)
15065 FILE *ex9_export_file
;
15066 struct elf_nds32_link_hash_table
*table
;
15068 table
= nds32_elf_hash_table (info
);
15069 ex9_export_file
= table
->ex9_export_file
;
15070 fwrite (contents
, sizeof (bfd_byte
), size
, ex9_export_file
);
15071 fclose (ex9_export_file
);
15074 /* Adjust relocations of J and JAL in ex9.itable.
15075 Export ex9 table. */
15078 nds32_elf_ex9_reloc_jmp (struct bfd_link_info
*link_info
)
15080 asection
*table_sec
= NULL
;
15081 struct elf_nds32_insn_times_entry
*ex9_insn
= ex9_insn_head
;
15082 struct elf_nds32_insn_times_entry
*temp_ptr
, *temp_ptr2
;
15084 uint32_t insn
, insn_with_reg
, source_insn
;
15085 bfd_byte
*contents
= NULL
, *source_contents
= NULL
;
15088 int shift
, update_ex9_table
, offset
= 0;
15089 reloc_howto_type
*howto
= NULL
;
15090 Elf_Internal_Rela rel_backup
;
15091 unsigned short insn_ex9
;
15092 struct elf_nds32_link_hash_table
*table
;
15093 FILE *ex9_export_file
;
15094 static bfd_boolean done
= FALSE
;
15101 table
= nds32_elf_hash_table (link_info
);
15103 table
->relax_status
|= NDS32_RELAX_EX9_DONE
;
15106 update_ex9_table
= table
->update_ex9_table
;
15107 /* Generated ex9.itable exactly. */
15108 if (update_ex9_table
== 0)
15110 for (it_abfd
= link_info
->input_bfds
; it_abfd
!= NULL
;
15111 it_abfd
= it_abfd
->link
.next
)
15113 table_sec
= bfd_get_section_by_name (it_abfd
, ".ex9.itable");
15114 if (table_sec
!= NULL
)
15118 if (table_sec
!= NULL
)
15122 output_bfd
= table_sec
->output_section
->owner
;
15123 nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
15124 if (table_sec
->size
== 0)
15127 if (!nds32_get_section_contents (it_abfd
, table_sec
, &contents
, TRUE
))
15136 output_bfd
= link_info
->input_bfds
->sections
->output_section
->owner
;
15137 nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
15138 contents
= bfd_malloc (sizeof (bfd_byte
) * 2048);
15141 /* Relocate instruction. */
15144 bfd_vma relocation
, min_relocation
= 0xffffffff;
15146 insn
= strtol (ex9_insn
->string
, NULL
, 16);
15148 if (ex9_insn
->m_list
!= NULL
|| ex9_insn
->sec
!= NULL
)
15150 if (ex9_insn
->m_list
)
15151 rel_backup
= ex9_insn
->m_list
->rel_backup
;
15153 rel_backup
= ex9_insn
->rel_backup
;
15155 nds32_elf_get_insn_with_reg (&rel_backup
, insn
, &insn_with_reg
);
15157 bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE
15158 (rel_backup
.r_info
));
15159 shift
= howto
->rightshift
;
15160 if (ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_25_PCREL_RELA
15161 || ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_LO12S0_ORI_RELA
15162 || ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_LO12S0_RELA
15163 || ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_LO12S1_RELA
15164 || ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_LO12S2_RELA
)
15166 relocation
= nds32_elf_ex9_reloc_insn (ex9_insn
, link_info
);
15168 insn_with_reg
| ((relocation
>> shift
) &
15169 nds32_elf_irel_mask (&rel_backup
));
15170 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15172 else if ((ELF32_R_TYPE (rel_backup
.r_info
) >= R_NDS32_SDA15S3
15173 && ELF32_R_TYPE (rel_backup
.r_info
) <= R_NDS32_SDA15S0
)
15174 || (ELF32_R_TYPE (rel_backup
.r_info
) >= R_NDS32_SDA15S3_RELA
15175 && ELF32_R_TYPE (rel_backup
.r_info
) <= R_NDS32_SDA15S0_RELA
)
15176 || (ELF32_R_TYPE (rel_backup
.r_info
) >= R_NDS32_SDA12S2_DP_RELA
15177 && ELF32_R_TYPE (rel_backup
.r_info
) <= R_NDS32_SDA12S2_SP_RELA
)
15178 || (ELF32_R_TYPE (rel_backup
.r_info
) >= R_NDS32_SDA16S3_RELA
15179 && ELF32_R_TYPE (rel_backup
.r_info
) <= R_NDS32_SDA19S0_RELA
))
15181 relocation
= nds32_elf_ex9_reloc_insn (ex9_insn
, link_info
);
15183 insn_with_reg
| (((relocation
- gp
) >> shift
) &
15184 nds32_elf_irel_mask (&rel_backup
));
15185 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15187 else if (ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_HI20_RELA
)
15189 /* Sethi may be multiple entry for one insn. */
15190 if (ex9_insn
->next
&& ex9_insn
->m_list
15191 && ex9_insn
->m_list
== ex9_insn
->next
->m_list
)
15193 struct elf_link_hash_entry_mul_list
*m_list
;
15194 struct elf_nds32_ex9_refix
*fix_ptr
;
15195 struct elf_link_hash_entry
*h
;
15197 temp_ptr
= ex9_insn
;
15198 temp_ptr2
= ex9_insn
;
15199 m_list
= ex9_insn
->m_list
;
15202 h
= m_list
->h_list
->h
;
15203 relocation
= h
->root
.u
.def
.value
+
15204 h
->root
.u
.def
.section
->output_section
->vma
+
15205 h
->root
.u
.def
.section
->output_offset
;
15206 relocation
+= m_list
->irel
->r_addend
;
15208 if (relocation
< min_relocation
)
15209 min_relocation
= relocation
;
15210 m_list
= m_list
->next
;
15212 relocation
= min_relocation
;
15214 /* Put insntruction into ex9 table. */
15215 insn
= insn_with_reg
15216 | ((relocation
>> shift
) & nds32_elf_irel_mask (&rel_backup
));
15217 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15218 relocation
= relocation
+ 0x1000; /* hi20 */
15220 while (ex9_insn
->next
&& ex9_insn
->m_list
15221 && ex9_insn
->m_list
== ex9_insn
->next
->m_list
)
15223 /* Multiple sethi. */
15224 ex9_insn
= ex9_insn
->next
;
15227 insn_with_reg
| ((relocation
>> shift
) &
15228 nds32_elf_irel_mask (&rel_backup
));
15229 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15230 relocation
= relocation
+ 0x1000; /* hi20 */
15233 fix_ptr
= ex9_refix_head
;
15236 /* Fix ex9 insn. */
15237 /* temp_ptr2 points to the head of multiple sethi. */
15238 temp_ptr
= temp_ptr2
;
15239 while (fix_ptr
->order
!= temp_ptr
->order
&& fix_ptr
->next
)
15241 fix_ptr
= fix_ptr
->next
;
15243 if (fix_ptr
->order
!= temp_ptr
->order
)
15246 /* Set source insn. */
15248 fix_ptr
->h
->root
.u
.def
.value
+
15249 fix_ptr
->h
->root
.u
.def
.section
->output_section
->vma
+
15250 fix_ptr
->h
->root
.u
.def
.section
->output_offset
;
15251 relocation
+= fix_ptr
->irel
->r_addend
;
15252 /* sethi imm is imm20s. */
15253 source_insn
= insn_with_reg
| ((relocation
>> shift
) & 0xfffff);
15257 /* Match entry and source code. */
15258 insn
= bfd_getb32 (contents
+ (temp_ptr
->order
) * 4 + offset
);
15259 if (insn
== source_insn
)
15261 /* Fix the ex9 insn. */
15262 if (temp_ptr
->order
!= fix_ptr
->order
)
15264 if (!nds32_get_section_contents
15265 (fix_ptr
->sec
->owner
, fix_ptr
->sec
,
15266 &source_contents
, TRUE
))
15268 (_("Linker: error cannot fixed ex9 relocation \n"));
15269 if (temp_ptr
->order
< 32)
15270 insn_ex9
= INSN_EX9_IT_2
;
15272 insn_ex9
= INSN_EX9_IT_1
;
15273 insn_ex9
= insn_ex9
| temp_ptr
->order
;
15274 bfd_putb16 (insn_ex9
, source_contents
+ fix_ptr
->irel
->r_offset
);
15280 if (!temp_ptr
->next
|| temp_ptr
->m_list
!= temp_ptr
->next
->m_list
)
15282 (_("Linker: error cannot fixed ex9 relocation \n"));
15284 temp_ptr
= temp_ptr
->next
;
15287 fix_ptr
= fix_ptr
->next
;
15292 relocation
= nds32_elf_ex9_reloc_insn (ex9_insn
, link_info
);
15293 insn
= insn_with_reg
15294 | ((relocation
>> shift
) & nds32_elf_irel_mask (&rel_backup
));
15295 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15301 /* Insn without relocation does not have to be fixed
15302 if need to update export table. */
15303 if (update_ex9_table
== 1)
15304 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15306 ex9_insn
= ex9_insn
->next
;
15310 ex9_export_file
= table
->ex9_export_file
;
15311 if (ex9_export_file
!= NULL
)
15312 nds32_elf_ex9_export (link_info
, contents
, table_sec
->size
);
15313 else if (update_ex9_table
== 1)
15315 table
->ex9_export_file
= table
->ex9_import_file
;
15316 rewind (table
->ex9_export_file
);
15317 nds32_elf_ex9_export (link_info
, contents
, size
);
15321 /* Generate ex9 hash table. */
15324 nds32_elf_ex9_build_hash_table (bfd
*abfd
, asection
*sec
,
15325 struct bfd_link_info
*link_info
)
15327 Elf_Internal_Rela
*internal_relocs
;
15328 Elf_Internal_Rela
*irelend
;
15329 Elf_Internal_Rela
*irel
;
15330 Elf_Internal_Rela
*jrel
;
15331 Elf_Internal_Rela rel_backup
;
15332 Elf_Internal_Shdr
*symtab_hdr
;
15333 Elf_Internal_Sym
*isym
= NULL
;
15335 struct elf_link_hash_entry
**sym_hashes
;
15336 bfd_byte
*contents
= NULL
;
15338 unsigned long r_symndx
;
15339 uint32_t insn
, insn_with_reg
;
15340 struct elf_link_hash_entry
*h
;
15341 int data_flag
, shift
, align
;
15342 bfd_vma relocation
;
15343 /* Suppress ex9 if `.no_relax ex9' or inner loop. */
15344 reloc_howto_type
*howto
= NULL
;
15346 sym_hashes
= elf_sym_hashes (abfd
);
15347 /* Load section instructions, relocations, and symbol table. */
15348 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
))
15351 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
,
15352 TRUE
/* keep_memory */);
15353 irelend
= internal_relocs
+ sec
->reloc_count
;
15354 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
15355 if (!nds32_get_local_syms (abfd
, sec
, &isym
))
15358 /* Check the object if enable ex9. */
15359 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
, irelend
,
15360 R_NDS32_RELAX_ENTRY
);
15362 /* Check this section trigger ex9 relaxation. */
15365 || ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
15366 || (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
15367 && !(irel
->r_addend
& R_NDS32_RELAX_ENTRY_EX9_FLAG
)))
15370 irel
= internal_relocs
;
15372 /* Push each insn into hash table. */
15373 while (off
< sec
->size
)
15376 struct elf_nds32_code_hash_entry
*entry
;
15378 while (irel
!= NULL
&& irel
< irelend
&& irel
->r_offset
< off
)
15381 data_flag
= nds32_elf_ex9_relocation_check (link_info
, &irel
, irelend
,
15382 NULL
, sec
, &off
, contents
);
15383 if (data_flag
& DATA_EXIST
)
15385 /* We save the move offset in the highest byte. */
15386 off
+= (data_flag
>> 24);
15390 if (*(contents
+ off
) & 0x80)
15399 rel_backup
.r_info
= 0;
15400 rel_backup
.r_offset
= 0;
15401 rel_backup
.r_addend
= 0;
15402 /* Load the instruction and its opcode with register for comparing. */
15403 insn
= bfd_getb32 (contents
+ off
);
15405 if (irel
!= NULL
&& irel
< irelend
&& irel
->r_offset
== off
)
15407 nds32_elf_get_insn_with_reg (irel
, insn
, &insn_with_reg
);
15408 howto
= bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (irel
->r_info
));
15409 shift
= howto
->rightshift
;
15410 align
= (1 << shift
) - 1;
15411 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_25_PCREL_RELA
15412 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_HI20_RELA
15413 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S0_ORI_RELA
15414 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S0_RELA
15415 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S1_RELA
15416 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_RELA
15417 ||(ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3
15418 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0
)
15419 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3_RELA
15420 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0_RELA
)
15421 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA12S2_DP_RELA
15422 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA12S2_SP_RELA
)
15423 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA16S3_RELA
15424 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA19S0_RELA
))
15426 r_symndx
= ELF32_R_SYM (irel
->r_info
);
15428 rel_backup
= *irel
;
15429 if (r_symndx
< symtab_hdr
->sh_info
)
15431 /* Local symbol. */
15432 int shndx
= isym
[r_symndx
].st_shndx
;
15434 bfd_vma st_value
= (isym
+ r_symndx
)->st_value
;
15435 isec
= elf_elfsections (abfd
)[shndx
]->bfd_section
;
15436 relocation
= (isec
->output_section
->vma
+ isec
->output_offset
15437 + st_value
+ irel
->r_addend
);
15441 /* External symbol. */
15442 bfd_boolean warned ATTRIBUTE_UNUSED
;
15443 bfd_boolean ignored ATTRIBUTE_UNUSED
;
15444 bfd_boolean unresolved_reloc ATTRIBUTE_UNUSED
;
15447 /* Maybe there is a better way to get h and relocation */
15448 RELOC_FOR_GLOBAL_SYMBOL (link_info
, abfd
, sec
, irel
,
15449 r_symndx
, symtab_hdr
, sym_hashes
,
15450 h
, sym_sec
, relocation
,
15451 unresolved_reloc
, warned
, ignored
);
15452 relocation
+= irel
->r_addend
;
15453 if ((h
->root
.type
!= bfd_link_hash_defined
15454 && h
->root
.type
!= bfd_link_hash_defweak
)
15455 || strcmp (h
->root
.root
.string
, "_FP_BASE_") == 0)
15462 /* Check for gp relative instruction alignment. */
15463 if ((ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3
15464 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0
)
15465 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3_RELA
15466 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0_RELA
)
15467 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA12S2_DP_RELA
15468 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA12S2_SP_RELA
)
15469 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA16S3_RELA
15470 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA19S0_RELA
))
15473 bfd
*output_bfd
= sec
->output_section
->owner
;
15474 bfd_reloc_status_type r
;
15476 /* If the symbol is in the abs section, the out_bfd will be null.
15477 This happens when the relocation has a symbol@GOTOFF. */
15478 r
= nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
15479 if (r
!= bfd_reloc_ok
)
15487 /* Make sure alignment is correct. */
15488 if (relocation
& align
)
15490 /* Incorrect alignment. */
15492 /* xgettext:c-format */
15493 (_("%s: warning: unaligned small data access. "
15494 "For entry: {%d, %d, %d}, addr = 0x%x, align = 0x%x."),
15495 bfd_get_filename (abfd
), irel
->r_offset
,
15496 irel
->r_info
, irel
->r_addend
, relocation
, align
);
15502 insn
= insn_with_reg
15503 | ((relocation
>> shift
) & nds32_elf_irel_mask (irel
));
15505 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
15506 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
15507 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
)
15509 /* These relocations do not have to relocate contens, so it can
15510 be regard as instruction without relocation. */
15519 snprintf (code
, sizeof (code
), "%08x", insn
);
15521 entry
= (struct elf_nds32_code_hash_entry
*)
15522 bfd_hash_lookup (&ex9_code_table
, code
, TRUE
, TRUE
);
15526 (_("%P%F: failed creating ex9.it %s hash table: %E\n"), code
);
15531 if (h
->root
.type
== bfd_link_hash_undefined
)
15533 /* Global symbol. */
15534 /* In order to do sethi with different symbol but same value. */
15535 if (entry
->m_list
== NULL
)
15537 struct elf_link_hash_entry_mul_list
*m_list_new
;
15538 struct elf_link_hash_entry_list
*h_list_new
;
15540 m_list_new
= (struct elf_link_hash_entry_mul_list
*)
15541 bfd_malloc (sizeof (struct elf_link_hash_entry_mul_list
));
15542 h_list_new
= (struct elf_link_hash_entry_list
*)
15543 bfd_malloc (sizeof (struct elf_link_hash_entry_list
));
15544 entry
->m_list
= m_list_new
;
15545 m_list_new
->h_list
= h_list_new
;
15546 m_list_new
->rel_backup
= rel_backup
;
15547 m_list_new
->times
= 1;
15548 m_list_new
->irel
= jrel
;
15549 m_list_new
->next
= NULL
;
15551 h_list_new
->next
= NULL
;
15555 struct elf_link_hash_entry_mul_list
*m_list
= entry
->m_list
;
15556 struct elf_link_hash_entry_list
*h_list
;
15560 /* Build the different symbols that point to the same address. */
15561 h_list
= m_list
->h_list
;
15562 if (h_list
->h
->root
.u
.def
.value
== h
->root
.u
.def
.value
15563 && h_list
->h
->root
.u
.def
.section
->output_section
->vma
15564 == h
->root
.u
.def
.section
->output_section
->vma
15565 && h_list
->h
->root
.u
.def
.section
->output_offset
15566 == h
->root
.u
.def
.section
->output_offset
15567 && m_list
->rel_backup
.r_addend
== rel_backup
.r_addend
)
15570 m_list
->irel
= jrel
;
15571 while (h_list
->h
!= h
&& h_list
->next
)
15572 h_list
= h_list
->next
;
15573 if (h_list
->h
!= h
)
15575 struct elf_link_hash_entry_list
*h_list_new
;
15577 h_list_new
= (struct elf_link_hash_entry_list
*)
15578 bfd_malloc (sizeof (struct elf_link_hash_entry_list
));
15579 h_list
->next
= h_list_new
;
15581 h_list_new
->next
= NULL
;
15585 /* The sethi case may have different address but the
15586 hi20 is the same. */
15587 else if (ELF32_R_TYPE (jrel
->r_info
) == R_NDS32_HI20_RELA
15588 && m_list
->next
== NULL
)
15590 struct elf_link_hash_entry_mul_list
*m_list_new
;
15591 struct elf_link_hash_entry_list
*h_list_new
;
15593 m_list_new
= (struct elf_link_hash_entry_mul_list
*)
15594 bfd_malloc (sizeof (struct elf_link_hash_entry_mul_list
));
15595 h_list_new
= (struct elf_link_hash_entry_list
*)
15596 bfd_malloc (sizeof (struct elf_link_hash_entry_list
));
15597 m_list
->next
= m_list_new
;
15598 m_list_new
->h_list
= h_list_new
;
15599 m_list_new
->rel_backup
= rel_backup
;
15600 m_list_new
->times
= 1;
15601 m_list_new
->irel
= jrel
;
15602 m_list_new
->next
= NULL
;
15604 h_list_new
->next
= NULL
;
15607 m_list
= m_list
->next
;
15618 /* Local symbol and insn without relocation*/
15620 entry
->rel_backup
= rel_backup
;
15623 /* Use in sethi insn with constant and global symbol in same format. */
15625 entry
->const_insn
= 1;
15627 entry
->irel
= jrel
;
15635 /* Set the _ITB_BASE, and point it to ex9 table. */
15638 nds32_elf_ex9_itb_base (struct bfd_link_info
*link_info
)
15642 bfd
*output_bfd
= NULL
;
15643 struct bfd_link_hash_entry
*bh
= NULL
;
15645 if (is_ITB_BASE_set
== 1)
15648 is_ITB_BASE_set
= 1;
15650 bh
= bfd_link_hash_lookup (link_info
->hash
, "_ITB_BASE_", FALSE
, FALSE
, TRUE
);
15652 if (bh
&& (bh
->type
== bfd_link_hash_defined
15653 || bh
->type
== bfd_link_hash_defweak
))
15656 for (abfd
= link_info
->input_bfds
; abfd
!= NULL
;
15657 abfd
= abfd
->link
.next
)
15659 sec
= bfd_get_section_by_name (abfd
, ".ex9.itable");
15662 output_bfd
= sec
->output_section
->owner
;
15666 if (output_bfd
== NULL
)
15668 output_bfd
= link_info
->output_bfd
;
15669 if (output_bfd
->sections
== NULL
)
15672 sec
= bfd_abs_section_ptr
;
15674 bh
= bfd_link_hash_lookup (link_info
->hash
, "_ITB_BASE_",
15675 FALSE
, FALSE
, TRUE
);
15676 return (_bfd_generic_link_add_one_symbol
15677 (link_info
, output_bfd
, "_ITB_BASE_",
15678 BSF_GLOBAL
| BSF_WEAK
, sec
, 0,
15679 (const char *) NULL
, FALSE
, get_elf_backend_data
15680 (output_bfd
)->collect
, &bh
));
15684 #define ELF_ARCH bfd_arch_nds32
15685 #define ELF_MACHINE_CODE EM_NDS32
15686 #define ELF_MAXPAGESIZE 0x1000
15687 #define ELF_TARGET_ID NDS32_ELF_DATA
15689 #define TARGET_BIG_SYM nds32_elf32_be_vec
15690 #define TARGET_BIG_NAME "elf32-nds32be"
15691 #define TARGET_LITTLE_SYM nds32_elf32_le_vec
15692 #define TARGET_LITTLE_NAME "elf32-nds32le"
15694 #define elf_info_to_howto nds32_info_to_howto
15695 #define elf_info_to_howto_rel nds32_info_to_howto_rel
15697 #define bfd_elf32_bfd_link_hash_table_create nds32_elf_link_hash_table_create
15698 #define bfd_elf32_bfd_merge_private_bfd_data nds32_elf_merge_private_bfd_data
15699 #define bfd_elf32_bfd_print_private_bfd_data nds32_elf_print_private_bfd_data
15700 #define bfd_elf32_bfd_relax_section nds32_elf_relax_section
15701 #define bfd_elf32_bfd_set_private_flags nds32_elf_set_private_flags
15703 #define bfd_elf32_mkobject nds32_elf_mkobject
15704 #define elf_backend_action_discarded nds32_elf_action_discarded
15705 #define elf_backend_add_symbol_hook nds32_elf_add_symbol_hook
15706 #define elf_backend_check_relocs nds32_elf_check_relocs
15707 #define elf_backend_adjust_dynamic_symbol nds32_elf_adjust_dynamic_symbol
15708 #define elf_backend_create_dynamic_sections nds32_elf_create_dynamic_sections
15709 #define elf_backend_finish_dynamic_sections nds32_elf_finish_dynamic_sections
15710 #define elf_backend_finish_dynamic_symbol nds32_elf_finish_dynamic_symbol
15711 #define elf_backend_size_dynamic_sections nds32_elf_size_dynamic_sections
15712 #define elf_backend_relocate_section nds32_elf_relocate_section
15713 #define elf_backend_gc_mark_hook nds32_elf_gc_mark_hook
15714 #define elf_backend_gc_sweep_hook nds32_elf_gc_sweep_hook
15715 #define elf_backend_grok_prstatus nds32_elf_grok_prstatus
15716 #define elf_backend_grok_psinfo nds32_elf_grok_psinfo
15717 #define elf_backend_reloc_type_class nds32_elf_reloc_type_class
15718 #define elf_backend_copy_indirect_symbol nds32_elf_copy_indirect_symbol
15719 #define elf_backend_link_output_symbol_hook nds32_elf_output_symbol_hook
15720 #define elf_backend_output_arch_syms nds32_elf_output_arch_syms
15721 #define elf_backend_object_p nds32_elf_object_p
15722 #define elf_backend_final_write_processing nds32_elf_final_write_processing
15723 #define elf_backend_special_sections nds32_elf_special_sections
15724 #define bfd_elf32_bfd_get_relocated_section_contents \
15725 nds32_elf_get_relocated_section_contents
15727 #define elf_backend_can_gc_sections 1
15728 #define elf_backend_can_refcount 1
15729 #define elf_backend_want_got_plt 1
15730 #define elf_backend_plt_readonly 1
15731 #define elf_backend_want_plt_sym 0
15732 #define elf_backend_got_header_size 12
15733 #define elf_backend_may_use_rel_p 1
15734 #define elf_backend_default_use_rela_p 1
15735 #define elf_backend_may_use_rela_p 1
15737 #include "elf32-target.h"
15739 #undef ELF_MAXPAGESIZE
15740 #define ELF_MAXPAGESIZE 0x2000
15742 #undef TARGET_BIG_SYM
15743 #define TARGET_BIG_SYM nds32_elf32_linux_be_vec
15744 #undef TARGET_BIG_NAME
15745 #define TARGET_BIG_NAME "elf32-nds32be-linux"
15746 #undef TARGET_LITTLE_SYM
15747 #define TARGET_LITTLE_SYM nds32_elf32_linux_le_vec
15748 #undef TARGET_LITTLE_NAME
15749 #define TARGET_LITTLE_NAME "elf32-nds32le-linux"
15751 #define elf32_bed elf32_nds32_lin_bed
15753 #include "elf32-target.h"