1 /* BFD semi-generic back-end for a.out binaries.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
3 Written by Cygnus Support.
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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
28 BFD supports a number of different flavours of a.out format,
29 though the major differences are only the sizes of the
30 structures on disk, and the shape of the relocation
33 The support is split into a basic support file @file{aoutx.h}
34 and other files which derive functions from the base. One
35 derivation file is @file{aoutf1.h} (for a.out flavour 1), and
36 adds to the basic a.out functions support for sun3, sun4, 386
37 and 29k a.out files, to create a target jump vector for a
40 This information is further split out into more specific files
41 for each machine, including @file{sunos.c} for sun3 and sun4,
42 @file{newsos3.c} for the Sony NEWS, and @file{demo64.c} for a
43 demonstration of a 64 bit a.out format.
45 The base file @file{aoutx.h} defines general mechanisms for
46 reading and writing records to and from disk and various
47 other methods which BFD requires. It is included by
48 @file{aout32.c} and @file{aout64.c} to form the names
49 <<aout_32_swap_exec_header_in>>, <<aout_64_swap_exec_header_in>>, etc.
51 As an example, this is what goes on to make the back end for a
52 sun4, from @file{aout32.c}:
54 | #define ARCH_SIZE 32
60 | aout_32_canonicalize_reloc
61 | aout_32_find_nearest_line
63 | aout_32_get_reloc_upper_bound
68 | #define TARGET_NAME "a.out-sunos-big"
69 | #define VECNAME sunos_big_vec
72 requires all the names from @file{aout32.c}, and produces the jump vector
76 The file @file{host-aout.c} is a special case. It is for a large set
77 of hosts that use ``more or less standard'' a.out files, and
78 for which cross-debugging is not interesting. It uses the
79 standard 32-bit a.out support routines, but determines the
80 file offsets and addresses of the text, data, and BSS
81 sections, the machine architecture and machine type, and the
82 entry point address, in a host-dependent manner. Once these
83 values have been determined, generic code is used to handle
86 When porting it to run on a new system, you must supply:
90 | HOST_MACHINE_ARCH (optional)
91 | HOST_MACHINE_MACHINE (optional)
92 | HOST_TEXT_START_ADDR
95 in the file @file{../include/sys/h-@var{XXX}.h} (for your host). These
96 values, plus the structures and macros defined in @file{a.out.h} on
97 your host system, will produce a BFD target that will access
98 ordinary a.out files on your host. To configure a new machine
99 to use @file{host-aout.c}, specify:
101 | TDEFAULTS = -DDEFAULT_VECTOR=host_aout_big_vec
102 | TDEPFILES= host-aout.o trad-core.o
104 in the @file{config/@var{XXX}.mt} file, and modify @file{configure.in}
106 @file{@var{XXX}.mt} file (by setting "<<bfd_target=XXX>>") when your
107 configuration is selected.
112 * Any BFD with D_PAGED set is ZMAGIC, and vice versa.
113 Doesn't matter what the setting of WP_TEXT is on output, but it'll
115 * Any BFD with D_PAGED clear and WP_TEXT set is NMAGIC.
116 * Any BFD with both flags clear is OMAGIC.
117 (Just want to make these explicit, so the conditions tested in this
118 file make sense if you're more familiar with a.out than with BFD.) */
120 #define KEEPIT udata.i
122 #include <string.h> /* For strchr and friends */
129 #include "aout/aout64.h"
130 #include "aout/stab_gnu.h"
133 static boolean aout_get_external_symbols
PARAMS ((bfd
*));
134 static boolean translate_from_native_sym_flags
135 PARAMS ((bfd
*, aout_symbol_type
*));
136 static boolean translate_to_native_sym_flags
137 PARAMS ((bfd
*, asymbol
*, struct external_nlist
*));
144 The file @file{aoutx.h} provides for both the @emph{standard}
145 and @emph{extended} forms of a.out relocation records.
147 The standard records contain only an
148 address, a symbol index, and a type field. The extended records
149 (used on 29ks and sparcs) also have a full integer for an
153 #ifndef CTOR_TABLE_RELOC_HOWTO
154 #define CTOR_TABLE_RELOC_IDX 2
155 #define CTOR_TABLE_RELOC_HOWTO(BFD) ((obj_reloc_entry_size(BFD) == RELOC_EXT_SIZE \
156 ? howto_table_ext : howto_table_std) \
157 + CTOR_TABLE_RELOC_IDX)
160 #ifndef MY_swap_std_reloc_in
161 #define MY_swap_std_reloc_in NAME(aout,swap_std_reloc_in)
164 #ifndef MY_swap_std_reloc_out
165 #define MY_swap_std_reloc_out NAME(aout,swap_std_reloc_out)
168 #ifndef MY_final_link_relocate
169 #define MY_final_link_relocate _bfd_final_link_relocate
172 #ifndef MY_relocate_contents
173 #define MY_relocate_contents _bfd_relocate_contents
176 #define howto_table_ext NAME(aout,ext_howto_table)
177 #define howto_table_std NAME(aout,std_howto_table)
179 reloc_howto_type howto_table_ext
[] =
181 /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */
182 HOWTO(RELOC_8
, 0, 0, 8, false, 0, complain_overflow_bitfield
,0,"8", false, 0,0x000000ff, false),
183 HOWTO(RELOC_16
, 0, 1, 16, false, 0, complain_overflow_bitfield
,0,"16", false, 0,0x0000ffff, false),
184 HOWTO(RELOC_32
, 0, 2, 32, false, 0, complain_overflow_bitfield
,0,"32", false, 0,0xffffffff, false),
185 HOWTO(RELOC_DISP8
, 0, 0, 8, true, 0, complain_overflow_signed
,0,"DISP8", false, 0,0x000000ff, false),
186 HOWTO(RELOC_DISP16
, 0, 1, 16, true, 0, complain_overflow_signed
,0,"DISP16", false, 0,0x0000ffff, false),
187 HOWTO(RELOC_DISP32
, 0, 2, 32, true, 0, complain_overflow_signed
,0,"DISP32", false, 0,0xffffffff, false),
188 HOWTO(RELOC_WDISP30
,2, 2, 30, true, 0, complain_overflow_signed
,0,"WDISP30", false, 0,0x3fffffff, false),
189 HOWTO(RELOC_WDISP22
,2, 2, 22, true, 0, complain_overflow_signed
,0,"WDISP22", false, 0,0x003fffff, false),
190 HOWTO(RELOC_HI22
, 10, 2, 22, false, 0, complain_overflow_bitfield
,0,"HI22", false, 0,0x003fffff, false),
191 HOWTO(RELOC_22
, 0, 2, 22, false, 0, complain_overflow_bitfield
,0,"22", false, 0,0x003fffff, false),
192 HOWTO(RELOC_13
, 0, 2, 13, false, 0, complain_overflow_bitfield
,0,"13", false, 0,0x00001fff, false),
193 HOWTO(RELOC_LO10
, 0, 2, 10, false, 0, complain_overflow_dont
,0,"LO10", false, 0,0x000003ff, false),
194 HOWTO(RELOC_SFA_BASE
,0, 2, 32, false, 0, complain_overflow_bitfield
,0,"SFA_BASE", false, 0,0xffffffff, false),
195 HOWTO(RELOC_SFA_OFF13
,0,2, 32, false, 0, complain_overflow_bitfield
,0,"SFA_OFF13",false, 0,0xffffffff, false),
196 HOWTO(RELOC_BASE10
, 0, 2, 16, false, 0, complain_overflow_bitfield
,0,"BASE10", false, 0,0x0000ffff, false),
197 HOWTO(RELOC_BASE13
, 0, 2, 13, false, 0, complain_overflow_bitfield
,0,"BASE13", false, 0,0x00001fff, false),
198 HOWTO(RELOC_BASE22
, 0, 2, 0, false, 0, complain_overflow_bitfield
,0,"BASE22", false, 0,0x00000000, false),
199 HOWTO(RELOC_PC10
, 0, 2, 10, true, 0, complain_overflow_dont
,0,"PC10", false, 0,0x000003ff, true),
200 HOWTO(RELOC_PC22
, 10, 2, 22, true, 0, complain_overflow_signed
,0,"PC22", false, 0,0x003fffff, true),
201 HOWTO(RELOC_JMP_TBL
,2, 2, 30, true, 0, complain_overflow_signed
,0,"JMP_TBL", false, 0,0x3fffffff, false),
202 HOWTO(RELOC_SEGOFF16
,0, 2, 0, false, 0, complain_overflow_bitfield
,0,"SEGOFF16", false, 0,0x00000000, false),
203 HOWTO(RELOC_GLOB_DAT
,0, 2, 0, false, 0, complain_overflow_bitfield
,0,"GLOB_DAT", false, 0,0x00000000, false),
204 HOWTO(RELOC_JMP_SLOT
,0, 2, 0, false, 0, complain_overflow_bitfield
,0,"JMP_SLOT", false, 0,0x00000000, false),
205 HOWTO(RELOC_RELATIVE
,0, 2, 0, false, 0, complain_overflow_bitfield
,0,"RELATIVE", false, 0,0x00000000, false),
208 /* Convert standard reloc records to "arelent" format (incl byte swap). */
210 reloc_howto_type howto_table_std
[] = {
211 /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */
212 HOWTO( 0, 0, 0, 8, false, 0, complain_overflow_bitfield
,0,"8", true, 0x000000ff,0x000000ff, false),
213 HOWTO( 1, 0, 1, 16, false, 0, complain_overflow_bitfield
,0,"16", true, 0x0000ffff,0x0000ffff, false),
214 HOWTO( 2, 0, 2, 32, false, 0, complain_overflow_bitfield
,0,"32", true, 0xffffffff,0xffffffff, false),
215 HOWTO( 3, 0, 4, 64, false, 0, complain_overflow_bitfield
,0,"64", true, 0xdeaddead,0xdeaddead, false),
216 HOWTO( 4, 0, 0, 8, true, 0, complain_overflow_signed
, 0,"DISP8", true, 0x000000ff,0x000000ff, false),
217 HOWTO( 5, 0, 1, 16, true, 0, complain_overflow_signed
, 0,"DISP16", true, 0x0000ffff,0x0000ffff, false),
218 HOWTO( 6, 0, 2, 32, true, 0, complain_overflow_signed
, 0,"DISP32", true, 0xffffffff,0xffffffff, false),
219 HOWTO( 7, 0, 4, 64, true, 0, complain_overflow_signed
, 0,"DISP64", true, 0xfeedface,0xfeedface, false),
220 HOWTO( 8, 0, 2, 0, false, 0, complain_overflow_bitfield
,0,"GOT_REL", false, 0,0x00000000, false),
221 HOWTO( 9, 0, 1, 16, false, 0, complain_overflow_bitfield
,0,"BASE16", false,0xffffffff,0xffffffff, false),
222 HOWTO(10, 0, 2, 32, false, 0, complain_overflow_bitfield
,0,"BASE32", false,0xffffffff,0xffffffff, false),
228 HOWTO(16, 0, 2, 0, false, 0, complain_overflow_bitfield
,0,"JMP_TABLE", false, 0,0x00000000, false),
236 { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 },
237 HOWTO(32, 0, 2, 0, false, 0, complain_overflow_bitfield
,0,"RELATIVE", false, 0,0x00000000, false),
245 HOWTO(40, 0, 2, 0, false, 0, complain_overflow_bitfield
,0,"BASEREL", false, 0,0x00000000, false),
248 #define TABLE_SIZE(TABLE) (sizeof(TABLE)/sizeof(TABLE[0]))
251 NAME(aout
,reloc_type_lookup
) (abfd
,code
)
253 bfd_reloc_code_real_type code
;
255 #define EXT(i,j) case i: return &howto_table_ext[j]
256 #define STD(i,j) case i: return &howto_table_std[j]
257 int ext
= obj_reloc_entry_size (abfd
) == RELOC_EXT_SIZE
;
258 if (code
== BFD_RELOC_CTOR
)
259 switch (bfd_get_arch_info (abfd
)->bits_per_address
)
271 EXT (BFD_RELOC_32
, 2);
272 EXT (BFD_RELOC_HI22
, 8);
273 EXT (BFD_RELOC_LO10
, 11);
274 EXT (BFD_RELOC_32_PCREL_S2
, 6);
275 EXT (BFD_RELOC_SPARC_WDISP22
, 7);
276 EXT (BFD_RELOC_SPARC13
, 10);
277 EXT (BFD_RELOC_SPARC_GOT10
, 14);
278 EXT (BFD_RELOC_SPARC_BASE13
, 15);
279 EXT (BFD_RELOC_SPARC_GOT13
, 15);
280 EXT (BFD_RELOC_SPARC_GOT22
, 16);
281 EXT (BFD_RELOC_SPARC_PC10
, 17);
282 EXT (BFD_RELOC_SPARC_PC22
, 18);
283 EXT (BFD_RELOC_SPARC_WPLT30
, 19);
284 default: return (reloc_howto_type
*) NULL
;
290 STD (BFD_RELOC_16
, 1);
291 STD (BFD_RELOC_32
, 2);
292 STD (BFD_RELOC_8_PCREL
, 4);
293 STD (BFD_RELOC_16_PCREL
, 5);
294 STD (BFD_RELOC_32_PCREL
, 6);
295 STD (BFD_RELOC_16_BASEREL
, 9);
296 STD (BFD_RELOC_32_BASEREL
, 10);
297 default: return (reloc_howto_type
*) NULL
;
303 Internal entry points
306 @file{aoutx.h} exports several routines for accessing the
307 contents of an a.out file, which are gathered and exported in
308 turn by various format specific files (eg sunos.c).
314 aout_@var{size}_swap_exec_header_in
317 void aout_@var{size}_swap_exec_header_in,
319 struct external_exec *raw_bytes,
320 struct internal_exec *execp);
323 Swap the information in an executable header @var{raw_bytes} taken
324 from a raw byte stream memory image into the internal exec header
325 structure @var{execp}.
328 #ifndef NAME_swap_exec_header_in
330 NAME(aout
,swap_exec_header_in
) (abfd
, raw_bytes
, execp
)
332 struct external_exec
*raw_bytes
;
333 struct internal_exec
*execp
;
335 struct external_exec
*bytes
= (struct external_exec
*)raw_bytes
;
337 /* The internal_exec structure has some fields that are unused in this
338 configuration (IE for i960), so ensure that all such uninitialized
339 fields are zero'd out. There are places where two of these structs
340 are memcmp'd, and thus the contents do matter. */
341 memset ((PTR
) execp
, 0, sizeof (struct internal_exec
));
342 /* Now fill in fields in the execp, from the bytes in the raw data. */
343 execp
->a_info
= bfd_h_get_32 (abfd
, bytes
->e_info
);
344 execp
->a_text
= GET_WORD (abfd
, bytes
->e_text
);
345 execp
->a_data
= GET_WORD (abfd
, bytes
->e_data
);
346 execp
->a_bss
= GET_WORD (abfd
, bytes
->e_bss
);
347 execp
->a_syms
= GET_WORD (abfd
, bytes
->e_syms
);
348 execp
->a_entry
= GET_WORD (abfd
, bytes
->e_entry
);
349 execp
->a_trsize
= GET_WORD (abfd
, bytes
->e_trsize
);
350 execp
->a_drsize
= GET_WORD (abfd
, bytes
->e_drsize
);
352 #define NAME_swap_exec_header_in NAME(aout,swap_exec_header_in)
357 aout_@var{size}_swap_exec_header_out
360 void aout_@var{size}_swap_exec_header_out
362 struct internal_exec *execp,
363 struct external_exec *raw_bytes);
366 Swap the information in an internal exec header structure
367 @var{execp} into the buffer @var{raw_bytes} ready for writing to disk.
370 NAME(aout
,swap_exec_header_out
) (abfd
, execp
, raw_bytes
)
372 struct internal_exec
*execp
;
373 struct external_exec
*raw_bytes
;
375 struct external_exec
*bytes
= (struct external_exec
*)raw_bytes
;
377 /* Now fill in fields in the raw data, from the fields in the exec struct. */
378 bfd_h_put_32 (abfd
, execp
->a_info
, bytes
->e_info
);
379 PUT_WORD (abfd
, execp
->a_text
, bytes
->e_text
);
380 PUT_WORD (abfd
, execp
->a_data
, bytes
->e_data
);
381 PUT_WORD (abfd
, execp
->a_bss
, bytes
->e_bss
);
382 PUT_WORD (abfd
, execp
->a_syms
, bytes
->e_syms
);
383 PUT_WORD (abfd
, execp
->a_entry
, bytes
->e_entry
);
384 PUT_WORD (abfd
, execp
->a_trsize
, bytes
->e_trsize
);
385 PUT_WORD (abfd
, execp
->a_drsize
, bytes
->e_drsize
);
388 /* Make all the section for an a.out file. */
391 NAME(aout
,make_sections
) (abfd
)
394 if (obj_textsec (abfd
) == (asection
*) NULL
395 && bfd_make_section (abfd
, ".text") == (asection
*) NULL
)
397 if (obj_datasec (abfd
) == (asection
*) NULL
398 && bfd_make_section (abfd
, ".data") == (asection
*) NULL
)
400 if (obj_bsssec (abfd
) == (asection
*) NULL
401 && bfd_make_section (abfd
, ".bss") == (asection
*) NULL
)
408 aout_@var{size}_some_aout_object_p
411 const bfd_target *aout_@var{size}_some_aout_object_p
413 const bfd_target *(*callback_to_real_object_p)());
416 Some a.out variant thinks that the file open in @var{abfd}
417 checking is an a.out file. Do some more checking, and set up
418 for access if it really is. Call back to the calling
419 environment's "finish up" function just before returning, to
420 handle any last-minute setup.
424 NAME(aout
,some_aout_object_p
) (abfd
, execp
, callback_to_real_object_p
)
426 struct internal_exec
*execp
;
427 const bfd_target
*(*callback_to_real_object_p
) PARAMS ((bfd
*));
429 struct aout_data_struct
*rawptr
, *oldrawptr
;
430 const bfd_target
*result
;
432 rawptr
= (struct aout_data_struct
*) bfd_zalloc (abfd
, sizeof (struct aout_data_struct
));
433 if (rawptr
== NULL
) {
434 bfd_set_error (bfd_error_no_memory
);
438 oldrawptr
= abfd
->tdata
.aout_data
;
439 abfd
->tdata
.aout_data
= rawptr
;
441 /* Copy the contents of the old tdata struct.
442 In particular, we want the subformat, since for hpux it was set in
443 hp300hpux.c:swap_exec_header_in and will be used in
444 hp300hpux.c:callback. */
445 if (oldrawptr
!= NULL
)
446 *abfd
->tdata
.aout_data
= *oldrawptr
;
448 abfd
->tdata
.aout_data
->a
.hdr
= &rawptr
->e
;
449 *(abfd
->tdata
.aout_data
->a
.hdr
) = *execp
; /* Copy in the internal_exec struct */
450 execp
= abfd
->tdata
.aout_data
->a
.hdr
;
452 /* Set the file flags */
453 abfd
->flags
= NO_FLAGS
;
454 if (execp
->a_drsize
|| execp
->a_trsize
)
455 abfd
->flags
|= HAS_RELOC
;
456 /* Setting of EXEC_P has been deferred to the bottom of this function */
458 abfd
->flags
|= HAS_LINENO
| HAS_DEBUG
| HAS_SYMS
| HAS_LOCALS
;
459 if (N_DYNAMIC(*execp
))
460 abfd
->flags
|= DYNAMIC
;
462 if (N_MAGIC (*execp
) == ZMAGIC
)
464 abfd
->flags
|= D_PAGED
| WP_TEXT
;
465 adata (abfd
).magic
= z_magic
;
467 else if (N_MAGIC (*execp
) == QMAGIC
)
469 abfd
->flags
|= D_PAGED
| WP_TEXT
;
470 adata (abfd
).magic
= z_magic
;
471 adata (abfd
).subformat
= q_magic_format
;
473 else if (N_MAGIC (*execp
) == NMAGIC
)
475 abfd
->flags
|= WP_TEXT
;
476 adata (abfd
).magic
= n_magic
;
478 else if (N_MAGIC (*execp
) == OMAGIC
479 || N_MAGIC (*execp
) == BMAGIC
)
480 adata (abfd
).magic
= o_magic
;
483 /* Should have been checked with N_BADMAG before this routine
488 bfd_get_start_address (abfd
) = execp
->a_entry
;
490 obj_aout_symbols (abfd
) = (aout_symbol_type
*)NULL
;
491 bfd_get_symcount (abfd
) = execp
->a_syms
/ sizeof (struct external_nlist
);
493 /* The default relocation entry size is that of traditional V7 Unix. */
494 obj_reloc_entry_size (abfd
) = RELOC_STD_SIZE
;
496 /* The default symbol entry size is that of traditional Unix. */
497 obj_symbol_entry_size (abfd
) = EXTERNAL_NLIST_SIZE
;
500 bfd_init_window (&obj_aout_sym_window (abfd
));
501 bfd_init_window (&obj_aout_string_window (abfd
));
503 obj_aout_external_syms (abfd
) = NULL
;
504 obj_aout_external_strings (abfd
) = NULL
;
505 obj_aout_sym_hashes (abfd
) = NULL
;
507 if (! NAME(aout
,make_sections
) (abfd
))
510 obj_datasec (abfd
)->_raw_size
= execp
->a_data
;
511 obj_bsssec (abfd
)->_raw_size
= execp
->a_bss
;
513 obj_textsec (abfd
)->flags
=
514 (execp
->a_trsize
!= 0
515 ? (SEC_ALLOC
| SEC_LOAD
| SEC_CODE
| SEC_HAS_CONTENTS
| SEC_RELOC
)
516 : (SEC_ALLOC
| SEC_LOAD
| SEC_CODE
| SEC_HAS_CONTENTS
));
517 obj_datasec (abfd
)->flags
=
518 (execp
->a_drsize
!= 0
519 ? (SEC_ALLOC
| SEC_LOAD
| SEC_DATA
| SEC_HAS_CONTENTS
| SEC_RELOC
)
520 : (SEC_ALLOC
| SEC_LOAD
| SEC_DATA
| SEC_HAS_CONTENTS
));
521 obj_bsssec (abfd
)->flags
= SEC_ALLOC
;
523 #ifdef THIS_IS_ONLY_DOCUMENTATION
524 /* The common code can't fill in these things because they depend
525 on either the start address of the text segment, the rounding
526 up of virtual addresses between segments, or the starting file
527 position of the text segment -- all of which varies among different
528 versions of a.out. */
530 /* Call back to the format-dependent code to fill in the rest of the
531 fields and do any further cleanup. Things that should be filled
532 in by the callback: */
534 struct exec
*execp
= exec_hdr (abfd
);
536 obj_textsec (abfd
)->size
= N_TXTSIZE(*execp
);
537 obj_textsec (abfd
)->raw_size
= N_TXTSIZE(*execp
);
538 /* data and bss are already filled in since they're so standard */
540 /* The virtual memory addresses of the sections */
541 obj_textsec (abfd
)->vma
= N_TXTADDR(*execp
);
542 obj_datasec (abfd
)->vma
= N_DATADDR(*execp
);
543 obj_bsssec (abfd
)->vma
= N_BSSADDR(*execp
);
545 /* The file offsets of the sections */
546 obj_textsec (abfd
)->filepos
= N_TXTOFF(*execp
);
547 obj_datasec (abfd
)->filepos
= N_DATOFF(*execp
);
549 /* The file offsets of the relocation info */
550 obj_textsec (abfd
)->rel_filepos
= N_TRELOFF(*execp
);
551 obj_datasec (abfd
)->rel_filepos
= N_DRELOFF(*execp
);
553 /* The file offsets of the string table and symbol table. */
554 obj_str_filepos (abfd
) = N_STROFF (*execp
);
555 obj_sym_filepos (abfd
) = N_SYMOFF (*execp
);
557 /* Determine the architecture and machine type of the object file. */
558 switch (N_MACHTYPE (*exec_hdr (abfd
))) {
560 abfd
->obj_arch
= bfd_arch_obscure
;
564 adata(abfd
)->page_size
= TARGET_PAGE_SIZE
;
565 adata(abfd
)->segment_size
= SEGMENT_SIZE
;
566 adata(abfd
)->exec_bytes_size
= EXEC_BYTES_SIZE
;
570 /* The architecture is encoded in various ways in various a.out variants,
571 or is not encoded at all in some of them. The relocation size depends
572 on the architecture and the a.out variant. Finally, the return value
573 is the bfd_target vector in use. If an error occurs, return zero and
574 set bfd_error to the appropriate error code.
576 Formats such as b.out, which have additional fields in the a.out
577 header, should cope with them in this callback as well. */
578 #endif /* DOCUMENTATION */
580 result
= (*callback_to_real_object_p
)(abfd
);
582 /* Now that the segment addresses have been worked out, take a better
583 guess at whether the file is executable. If the entry point
584 is within the text segment, assume it is. (This makes files
585 executable even if their entry point address is 0, as long as
586 their text starts at zero.). */
587 if ((execp
->a_entry
>= obj_textsec(abfd
)->vma
) &&
588 (execp
->a_entry
< obj_textsec(abfd
)->vma
+ obj_textsec(abfd
)->_raw_size
))
589 abfd
->flags
|= EXEC_P
;
593 struct stat stat_buf
;
595 /* The original heuristic doesn't work in some important cases.
596 The a.out file has no information about the text start
597 address. For files (like kernels) linked to non-standard
598 addresses (ld -Ttext nnn) the entry point may not be between
599 the default text start (obj_textsec(abfd)->vma) and
600 (obj_textsec(abfd)->vma) + text size. This is not just a mach
601 issue. Many kernels are loaded at non standard addresses. */
603 && (fstat(fileno((FILE *) (abfd
->iostream
)), &stat_buf
) == 0)
604 && ((stat_buf
.st_mode
& 0111) != 0))
605 abfd
->flags
|= EXEC_P
;
607 #endif /* STAT_FOR_EXEC */
611 #if 0 /* These should be set correctly anyways. */
612 abfd
->sections
= obj_textsec (abfd
);
613 obj_textsec (abfd
)->next
= obj_datasec (abfd
);
614 obj_datasec (abfd
)->next
= obj_bsssec (abfd
);
620 abfd
->tdata
.aout_data
= oldrawptr
;
627 aout_@var{size}_mkobject
630 boolean aout_@var{size}_mkobject, (bfd *abfd);
633 Initialize BFD @var{abfd} for use with a.out files.
637 NAME(aout
,mkobject
) (abfd
)
640 struct aout_data_struct
*rawptr
;
642 bfd_set_error (bfd_error_system_call
);
644 /* Use an intermediate variable for clarity */
645 rawptr
= (struct aout_data_struct
*)bfd_zalloc (abfd
, sizeof (struct aout_data_struct
));
647 if (rawptr
== NULL
) {
648 bfd_set_error (bfd_error_no_memory
);
652 abfd
->tdata
.aout_data
= rawptr
;
653 exec_hdr (abfd
) = &(rawptr
->e
);
655 obj_textsec (abfd
) = (asection
*)NULL
;
656 obj_datasec (abfd
) = (asection
*)NULL
;
657 obj_bsssec (abfd
) = (asection
*)NULL
;
665 aout_@var{size}_machine_type
668 enum machine_type aout_@var{size}_machine_type
669 (enum bfd_architecture arch,
670 unsigned long machine));
673 Keep track of machine architecture and machine type for
674 a.out's. Return the <<machine_type>> for a particular
675 architecture and machine, or <<M_UNKNOWN>> if that exact architecture
676 and machine can't be represented in a.out format.
678 If the architecture is understood, machine type 0 (default)
679 is always understood.
683 NAME(aout
,machine_type
) (arch
, machine
, unknown
)
684 enum bfd_architecture arch
;
685 unsigned long machine
;
688 enum machine_type arch_flags
;
690 arch_flags
= M_UNKNOWN
;
696 || machine
== bfd_mach_sparc
697 || machine
== bfd_mach_sparc64
)
698 arch_flags
= M_SPARC
;
703 case 0: arch_flags
= M_68010
; break;
704 case 68000: arch_flags
= M_UNKNOWN
; *unknown
= false; break;
705 case 68010: arch_flags
= M_68010
; break;
706 case 68020: arch_flags
= M_68020
; break;
707 default: arch_flags
= M_UNKNOWN
; break;
712 if (machine
== 0) arch_flags
= M_386
;
716 if (machine
== 0) arch_flags
= M_29K
;
720 if (machine
== 0) arch_flags
= M_ARM
;
727 case 3000: arch_flags
= M_MIPS1
; break;
728 case 4000: /* mips3 */
730 case 8000: /* mips4 */
732 case 6000: arch_flags
= M_MIPS2
; break;
733 default: arch_flags
= M_UNKNOWN
; break;
739 case 0: arch_flags
= M_NS32532
; break;
740 case 32032: arch_flags
= M_NS32032
; break;
741 case 32532: arch_flags
= M_NS32532
; break;
742 default: arch_flags
= M_UNKNOWN
; break;
750 /* start-sanitize-rce */
754 /* end-sanitize-rce */
757 arch_flags
= M_UNKNOWN
;
760 if (arch_flags
!= M_UNKNOWN
)
769 aout_@var{size}_set_arch_mach
772 boolean aout_@var{size}_set_arch_mach,
774 enum bfd_architecture arch,
775 unsigned long machine));
778 Set the architecture and the machine of the BFD @var{abfd} to the
779 values @var{arch} and @var{machine}. Verify that @var{abfd}'s format
780 can support the architecture required.
784 NAME(aout
,set_arch_mach
) (abfd
, arch
, machine
)
786 enum bfd_architecture arch
;
787 unsigned long machine
;
789 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
792 if (arch
!= bfd_arch_unknown
)
796 NAME(aout
,machine_type
) (arch
, machine
, &unknown
);
801 /* Determine the size of a relocation entry */
806 obj_reloc_entry_size (abfd
) = RELOC_EXT_SIZE
;
809 obj_reloc_entry_size (abfd
) = RELOC_STD_SIZE
;
813 return (*aout_backend_info(abfd
)->set_sizes
) (abfd
);
817 adjust_o_magic (abfd
, execp
)
819 struct internal_exec
*execp
;
821 file_ptr pos
= adata (abfd
).exec_bytes_size
;
826 obj_textsec(abfd
)->filepos
= pos
;
827 if (!obj_textsec(abfd
)->user_set_vma
)
828 obj_textsec(abfd
)->vma
= vma
;
830 vma
= obj_textsec(abfd
)->vma
;
832 pos
+= obj_textsec(abfd
)->_raw_size
;
833 vma
+= obj_textsec(abfd
)->_raw_size
;
836 if (!obj_datasec(abfd
)->user_set_vma
)
838 #if 0 /* ?? Does alignment in the file image really matter? */
839 pad
= align_power (vma
, obj_datasec(abfd
)->alignment_power
) - vma
;
841 obj_textsec(abfd
)->_raw_size
+= pad
;
844 obj_datasec(abfd
)->vma
= vma
;
847 vma
= obj_datasec(abfd
)->vma
;
848 obj_datasec(abfd
)->filepos
= pos
;
849 pos
+= obj_datasec(abfd
)->_raw_size
;
850 vma
+= obj_datasec(abfd
)->_raw_size
;
853 if (!obj_bsssec(abfd
)->user_set_vma
)
856 pad
= align_power (vma
, obj_bsssec(abfd
)->alignment_power
) - vma
;
858 obj_datasec(abfd
)->_raw_size
+= pad
;
861 obj_bsssec(abfd
)->vma
= vma
;
865 /* The VMA of the .bss section is set by the the VMA of the
866 .data section plus the size of the .data section. We may
867 need to add padding bytes to make this true. */
868 pad
= obj_bsssec (abfd
)->vma
- vma
;
871 obj_datasec (abfd
)->_raw_size
+= pad
;
875 obj_bsssec(abfd
)->filepos
= pos
;
877 /* Fix up the exec header. */
878 execp
->a_text
= obj_textsec(abfd
)->_raw_size
;
879 execp
->a_data
= obj_datasec(abfd
)->_raw_size
;
880 execp
->a_bss
= obj_bsssec(abfd
)->_raw_size
;
881 N_SET_MAGIC (*execp
, OMAGIC
);
885 adjust_z_magic (abfd
, execp
)
887 struct internal_exec
*execp
;
889 bfd_size_type data_pad
, text_pad
;
891 CONST
struct aout_backend_data
*abdp
;
892 int ztih
; /* Nonzero if text includes exec header. */
894 abdp
= aout_backend_info (abfd
);
898 && (abdp
->text_includes_header
899 || obj_aout_subformat (abfd
) == q_magic_format
));
900 obj_textsec(abfd
)->filepos
= (ztih
901 ? adata(abfd
).exec_bytes_size
902 : adata(abfd
).zmagic_disk_block_size
);
903 if (! obj_textsec(abfd
)->user_set_vma
)
905 /* ?? Do we really need to check for relocs here? */
906 obj_textsec(abfd
)->vma
= ((abfd
->flags
& HAS_RELOC
)
909 ? (abdp
->default_text_vma
910 + adata(abfd
).exec_bytes_size
)
911 : abdp
->default_text_vma
));
916 /* The .text section is being loaded at an unusual address. We
917 may need to pad it such that the .data section starts at a page
920 text_pad
= ((obj_textsec (abfd
)->filepos
- obj_textsec (abfd
)->vma
)
921 & (adata (abfd
).page_size
- 1));
923 text_pad
= ((- obj_textsec (abfd
)->vma
)
924 & (adata (abfd
).page_size
- 1));
927 /* Find start of data. */
930 text_end
= obj_textsec (abfd
)->filepos
+ obj_textsec (abfd
)->_raw_size
;
931 text_pad
+= BFD_ALIGN (text_end
, adata (abfd
).page_size
) - text_end
;
935 /* Note that if page_size == zmagic_disk_block_size, then
936 filepos == page_size, and this case is the same as the ztih
938 text_end
= obj_textsec (abfd
)->_raw_size
;
939 text_pad
+= BFD_ALIGN (text_end
, adata (abfd
).page_size
) - text_end
;
940 text_end
+= obj_textsec (abfd
)->filepos
;
942 obj_textsec(abfd
)->_raw_size
+= text_pad
;
943 text_end
+= text_pad
;
946 if (!obj_datasec(abfd
)->user_set_vma
)
949 vma
= obj_textsec(abfd
)->vma
+ obj_textsec(abfd
)->_raw_size
;
950 obj_datasec(abfd
)->vma
= BFD_ALIGN (vma
, adata(abfd
).segment_size
);
952 if (abdp
&& abdp
->zmagic_mapped_contiguous
)
954 text_pad
= (obj_datasec(abfd
)->vma
955 - obj_textsec(abfd
)->vma
956 - obj_textsec(abfd
)->_raw_size
);
957 obj_textsec(abfd
)->_raw_size
+= text_pad
;
959 obj_datasec(abfd
)->filepos
= (obj_textsec(abfd
)->filepos
960 + obj_textsec(abfd
)->_raw_size
);
962 /* Fix up exec header while we're at it. */
963 execp
->a_text
= obj_textsec(abfd
)->_raw_size
;
964 if (ztih
&& (!abdp
|| (abdp
&& !abdp
->exec_header_not_counted
)))
965 execp
->a_text
+= adata(abfd
).exec_bytes_size
;
966 if (obj_aout_subformat (abfd
) == q_magic_format
)
967 N_SET_MAGIC (*execp
, QMAGIC
);
969 N_SET_MAGIC (*execp
, ZMAGIC
);
971 /* Spec says data section should be rounded up to page boundary. */
972 obj_datasec(abfd
)->_raw_size
973 = align_power (obj_datasec(abfd
)->_raw_size
,
974 obj_bsssec(abfd
)->alignment_power
);
975 execp
->a_data
= BFD_ALIGN (obj_datasec(abfd
)->_raw_size
,
976 adata(abfd
).page_size
);
977 data_pad
= execp
->a_data
- obj_datasec(abfd
)->_raw_size
;
980 if (!obj_bsssec(abfd
)->user_set_vma
)
981 obj_bsssec(abfd
)->vma
= (obj_datasec(abfd
)->vma
982 + obj_datasec(abfd
)->_raw_size
);
983 /* If the BSS immediately follows the data section and extra space
984 in the page is left after the data section, fudge data
985 in the header so that the bss section looks smaller by that
986 amount. We'll start the bss section there, and lie to the OS.
987 (Note that a linker script, as well as the above assignment,
988 could have explicitly set the BSS vma to immediately follow
989 the data section.) */
990 if (align_power (obj_bsssec(abfd
)->vma
, obj_bsssec(abfd
)->alignment_power
)
991 == obj_datasec(abfd
)->vma
+ obj_datasec(abfd
)->_raw_size
)
992 execp
->a_bss
= (data_pad
> obj_bsssec(abfd
)->_raw_size
) ? 0 :
993 obj_bsssec(abfd
)->_raw_size
- data_pad
;
995 execp
->a_bss
= obj_bsssec(abfd
)->_raw_size
;
999 adjust_n_magic (abfd
, execp
)
1001 struct internal_exec
*execp
;
1003 file_ptr pos
= adata(abfd
).exec_bytes_size
;
1008 obj_textsec(abfd
)->filepos
= pos
;
1009 if (!obj_textsec(abfd
)->user_set_vma
)
1010 obj_textsec(abfd
)->vma
= vma
;
1012 vma
= obj_textsec(abfd
)->vma
;
1013 pos
+= obj_textsec(abfd
)->_raw_size
;
1014 vma
+= obj_textsec(abfd
)->_raw_size
;
1017 obj_datasec(abfd
)->filepos
= pos
;
1018 if (!obj_datasec(abfd
)->user_set_vma
)
1019 obj_datasec(abfd
)->vma
= BFD_ALIGN (vma
, adata(abfd
).segment_size
);
1020 vma
= obj_datasec(abfd
)->vma
;
1022 /* Since BSS follows data immediately, see if it needs alignment. */
1023 vma
+= obj_datasec(abfd
)->_raw_size
;
1024 pad
= align_power (vma
, obj_bsssec(abfd
)->alignment_power
) - vma
;
1025 obj_datasec(abfd
)->_raw_size
+= pad
;
1026 pos
+= obj_datasec(abfd
)->_raw_size
;
1029 if (!obj_bsssec(abfd
)->user_set_vma
)
1030 obj_bsssec(abfd
)->vma
= vma
;
1032 vma
= obj_bsssec(abfd
)->vma
;
1034 /* Fix up exec header. */
1035 execp
->a_text
= obj_textsec(abfd
)->_raw_size
;
1036 execp
->a_data
= obj_datasec(abfd
)->_raw_size
;
1037 execp
->a_bss
= obj_bsssec(abfd
)->_raw_size
;
1038 N_SET_MAGIC (*execp
, NMAGIC
);
1042 NAME(aout
,adjust_sizes_and_vmas
) (abfd
, text_size
, text_end
)
1044 bfd_size_type
*text_size
;
1047 struct internal_exec
*execp
= exec_hdr (abfd
);
1049 if (! NAME(aout
,make_sections
) (abfd
))
1052 if (adata(abfd
).magic
!= undecided_magic
)
1055 obj_textsec(abfd
)->_raw_size
=
1056 align_power(obj_textsec(abfd
)->_raw_size
,
1057 obj_textsec(abfd
)->alignment_power
);
1059 *text_size
= obj_textsec (abfd
)->_raw_size
;
1060 /* Rule (heuristic) for when to pad to a new page. Note that there
1061 are (at least) two ways demand-paged (ZMAGIC) files have been
1062 handled. Most Berkeley-based systems start the text segment at
1063 (TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text
1064 segment right after the exec header; the latter is counted in the
1065 text segment size, and is paged in by the kernel with the rest of
1068 /* This perhaps isn't the right way to do this, but made it simpler for me
1069 to understand enough to implement it. Better would probably be to go
1070 right from BFD flags to alignment/positioning characteristics. But the
1071 old code was sloppy enough about handling the flags, and had enough
1072 other magic, that it was a little hard for me to understand. I think
1073 I understand it better now, but I haven't time to do the cleanup this
1076 if (abfd
->flags
& D_PAGED
)
1077 /* Whether or not WP_TEXT is set -- let D_PAGED override. */
1078 adata(abfd
).magic
= z_magic
;
1079 else if (abfd
->flags
& WP_TEXT
)
1080 adata(abfd
).magic
= n_magic
;
1082 adata(abfd
).magic
= o_magic
;
1084 #ifdef BFD_AOUT_DEBUG /* requires gcc2 */
1086 fprintf (stderr
, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n",
1088 switch (adata(abfd
).magic
) {
1089 case n_magic
: str
= "NMAGIC"; break;
1090 case o_magic
: str
= "OMAGIC"; break;
1091 case z_magic
: str
= "ZMAGIC"; break;
1096 obj_textsec(abfd
)->vma
, obj_textsec(abfd
)->_raw_size
,
1097 obj_textsec(abfd
)->alignment_power
,
1098 obj_datasec(abfd
)->vma
, obj_datasec(abfd
)->_raw_size
,
1099 obj_datasec(abfd
)->alignment_power
,
1100 obj_bsssec(abfd
)->vma
, obj_bsssec(abfd
)->_raw_size
,
1101 obj_bsssec(abfd
)->alignment_power
);
1105 switch (adata(abfd
).magic
)
1108 adjust_o_magic (abfd
, execp
);
1111 adjust_z_magic (abfd
, execp
);
1114 adjust_n_magic (abfd
, execp
);
1120 #ifdef BFD_AOUT_DEBUG
1121 fprintf (stderr
, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n",
1122 obj_textsec(abfd
)->vma
, obj_textsec(abfd
)->_raw_size
,
1123 obj_textsec(abfd
)->filepos
,
1124 obj_datasec(abfd
)->vma
, obj_datasec(abfd
)->_raw_size
,
1125 obj_datasec(abfd
)->filepos
,
1126 obj_bsssec(abfd
)->vma
, obj_bsssec(abfd
)->_raw_size
);
1134 aout_@var{size}_new_section_hook
1137 boolean aout_@var{size}_new_section_hook,
1139 asection *newsect));
1142 Called by the BFD in response to a @code{bfd_make_section}
1146 NAME(aout
,new_section_hook
) (abfd
, newsect
)
1150 /* align to double at least */
1151 newsect
->alignment_power
= bfd_get_arch_info(abfd
)->section_align_power
;
1154 if (bfd_get_format (abfd
) == bfd_object
)
1156 if (obj_textsec(abfd
) == NULL
&& !strcmp(newsect
->name
, ".text")) {
1157 obj_textsec(abfd
)= newsect
;
1158 newsect
->target_index
= N_TEXT
;
1162 if (obj_datasec(abfd
) == NULL
&& !strcmp(newsect
->name
, ".data")) {
1163 obj_datasec(abfd
) = newsect
;
1164 newsect
->target_index
= N_DATA
;
1168 if (obj_bsssec(abfd
) == NULL
&& !strcmp(newsect
->name
, ".bss")) {
1169 obj_bsssec(abfd
) = newsect
;
1170 newsect
->target_index
= N_BSS
;
1176 /* We allow more than three sections internally */
1181 NAME(aout
,set_section_contents
) (abfd
, section
, location
, offset
, count
)
1186 bfd_size_type count
;
1189 bfd_size_type text_size
;
1191 if (! abfd
->output_has_begun
)
1193 if (! NAME(aout
,adjust_sizes_and_vmas
) (abfd
, &text_size
, &text_end
))
1197 if (section
== obj_bsssec (abfd
))
1199 bfd_set_error (bfd_error_no_contents
);
1203 if (section
!= obj_textsec (abfd
)
1204 && section
!= obj_datasec (abfd
))
1206 bfd_set_error (bfd_error_nonrepresentable_section
);
1212 if (bfd_seek (abfd
, section
->filepos
+ offset
, SEEK_SET
) != 0
1213 || bfd_write (location
, 1, count
, abfd
) != count
)
1220 /* Read the external symbols from an a.out file. */
1223 aout_get_external_symbols (abfd
)
1226 if (obj_aout_external_syms (abfd
) == (struct external_nlist
*) NULL
)
1228 bfd_size_type count
;
1229 struct external_nlist
*syms
;
1231 count
= exec_hdr (abfd
)->a_syms
/ EXTERNAL_NLIST_SIZE
;
1234 if (bfd_get_file_window (abfd
,
1235 obj_sym_filepos (abfd
), exec_hdr (abfd
)->a_syms
,
1236 &obj_aout_sym_window (abfd
), true) == false)
1238 syms
= (struct external_nlist
*) obj_aout_sym_window (abfd
).data
;
1240 /* We allocate using malloc to make the values easy to free
1241 later on. If we put them on the obstack it might not be
1242 possible to free them. */
1243 syms
= ((struct external_nlist
*)
1244 malloc ((size_t) count
* EXTERNAL_NLIST_SIZE
));
1245 if (syms
== (struct external_nlist
*) NULL
&& count
!= 0)
1247 bfd_set_error (bfd_error_no_memory
);
1251 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0
1252 || (bfd_read (syms
, 1, exec_hdr (abfd
)->a_syms
, abfd
)
1253 != exec_hdr (abfd
)->a_syms
))
1260 obj_aout_external_syms (abfd
) = syms
;
1261 obj_aout_external_sym_count (abfd
) = count
;
1264 if (obj_aout_external_strings (abfd
) == NULL
1265 && exec_hdr (abfd
)->a_syms
!= 0)
1267 unsigned char string_chars
[BYTES_IN_WORD
];
1268 bfd_size_type stringsize
;
1271 /* Get the size of the strings. */
1272 if (bfd_seek (abfd
, obj_str_filepos (abfd
), SEEK_SET
) != 0
1273 || (bfd_read ((PTR
) string_chars
, BYTES_IN_WORD
, 1, abfd
)
1276 stringsize
= GET_WORD (abfd
, string_chars
);
1279 if (bfd_get_file_window (abfd
, obj_str_filepos (abfd
), stringsize
,
1280 &obj_aout_string_window (abfd
), true) == false)
1282 strings
= (char *) obj_aout_string_window (abfd
).data
;
1284 strings
= (char *) malloc ((size_t) stringsize
+ 1);
1285 if (strings
== NULL
)
1287 bfd_set_error (bfd_error_no_memory
);
1291 /* Skip space for the string count in the buffer for convenience
1292 when using indexes. */
1293 if (bfd_read (strings
+ BYTES_IN_WORD
, 1, stringsize
- BYTES_IN_WORD
,
1295 != stringsize
- BYTES_IN_WORD
)
1302 /* Ensure that a zero index yields an empty string. */
1305 strings
[stringsize
- 1] = 0;
1307 obj_aout_external_strings (abfd
) = strings
;
1308 obj_aout_external_string_size (abfd
) = stringsize
;
1314 /* Translate an a.out symbol into a BFD symbol. The desc, other, type
1315 and symbol->value fields of CACHE_PTR will be set from the a.out
1316 nlist structure. This function is responsible for setting
1317 symbol->flags and symbol->section, and adjusting symbol->value. */
1320 translate_from_native_sym_flags (abfd
, cache_ptr
)
1322 aout_symbol_type
*cache_ptr
;
1326 if ((cache_ptr
->type
& N_STAB
) != 0
1327 || cache_ptr
->type
== N_FN
)
1331 /* This is a debugging symbol. */
1333 cache_ptr
->symbol
.flags
= BSF_DEBUGGING
;
1335 /* Work out the symbol section. */
1336 switch (cache_ptr
->type
& N_TYPE
)
1340 sec
= obj_textsec (abfd
);
1343 sec
= obj_datasec (abfd
);
1346 sec
= obj_bsssec (abfd
);
1350 sec
= bfd_abs_section_ptr
;
1354 cache_ptr
->symbol
.section
= sec
;
1355 cache_ptr
->symbol
.value
-= sec
->vma
;
1360 /* Get the default visibility. This does not apply to all types, so
1361 we just hold it in a local variable to use if wanted. */
1362 if ((cache_ptr
->type
& N_EXT
) == 0)
1363 visible
= BSF_LOCAL
;
1365 visible
= BSF_GLOBAL
;
1367 switch (cache_ptr
->type
)
1370 case N_ABS
: case N_ABS
| N_EXT
:
1371 cache_ptr
->symbol
.section
= bfd_abs_section_ptr
;
1372 cache_ptr
->symbol
.flags
= visible
;
1375 case N_UNDF
| N_EXT
:
1376 if (cache_ptr
->symbol
.value
!= 0)
1378 /* This is a common symbol. */
1379 cache_ptr
->symbol
.flags
= BSF_GLOBAL
;
1380 cache_ptr
->symbol
.section
= bfd_com_section_ptr
;
1384 cache_ptr
->symbol
.flags
= 0;
1385 cache_ptr
->symbol
.section
= bfd_und_section_ptr
;
1389 case N_TEXT
: case N_TEXT
| N_EXT
:
1390 cache_ptr
->symbol
.section
= obj_textsec (abfd
);
1391 cache_ptr
->symbol
.value
-= cache_ptr
->symbol
.section
->vma
;
1392 cache_ptr
->symbol
.flags
= visible
;
1395 /* N_SETV symbols used to represent set vectors placed in the
1396 data section. They are no longer generated. Theoretically,
1397 it was possible to extract the entries and combine them with
1398 new ones, although I don't know if that was ever actually
1399 done. Unless that feature is restored, treat them as data
1401 case N_SETV
: case N_SETV
| N_EXT
:
1402 case N_DATA
: case N_DATA
| N_EXT
:
1403 cache_ptr
->symbol
.section
= obj_datasec (abfd
);
1404 cache_ptr
->symbol
.value
-= cache_ptr
->symbol
.section
->vma
;
1405 cache_ptr
->symbol
.flags
= visible
;
1408 case N_BSS
: case N_BSS
| N_EXT
:
1409 cache_ptr
->symbol
.section
= obj_bsssec (abfd
);
1410 cache_ptr
->symbol
.value
-= cache_ptr
->symbol
.section
->vma
;
1411 cache_ptr
->symbol
.flags
= visible
;
1414 case N_SETA
: case N_SETA
| N_EXT
:
1415 case N_SETT
: case N_SETT
| N_EXT
:
1416 case N_SETD
: case N_SETD
| N_EXT
:
1417 case N_SETB
: case N_SETB
| N_EXT
:
1420 arelent_chain
*reloc
;
1421 asection
*into_section
;
1423 /* This is a set symbol. The name of the symbol is the name
1424 of the set (e.g., __CTOR_LIST__). The value of the symbol
1425 is the value to add to the set. We create a section with
1426 the same name as the symbol, and add a reloc to insert the
1427 appropriate value into the section.
1429 This action is actually obsolete; it used to make the
1430 linker do the right thing, but the linker no longer uses
1433 section
= bfd_get_section_by_name (abfd
, cache_ptr
->symbol
.name
);
1434 if (section
== NULL
)
1438 copy
= bfd_alloc (abfd
, strlen (cache_ptr
->symbol
.name
) + 1);
1441 bfd_set_error (bfd_error_no_memory
);
1445 strcpy (copy
, cache_ptr
->symbol
.name
);
1446 section
= bfd_make_section (abfd
, copy
);
1447 if (section
== NULL
)
1451 reloc
= (arelent_chain
*) bfd_alloc (abfd
, sizeof (arelent_chain
));
1454 bfd_set_error (bfd_error_no_memory
);
1458 /* Build a relocation entry for the constructor. */
1459 switch (cache_ptr
->type
& N_TYPE
)
1462 into_section
= bfd_abs_section_ptr
;
1463 cache_ptr
->type
= N_ABS
;
1466 into_section
= obj_textsec (abfd
);
1467 cache_ptr
->type
= N_TEXT
;
1470 into_section
= obj_datasec (abfd
);
1471 cache_ptr
->type
= N_DATA
;
1474 into_section
= obj_bsssec (abfd
);
1475 cache_ptr
->type
= N_BSS
;
1479 /* Build a relocation pointing into the constructor section
1480 pointing at the symbol in the set vector specified. */
1481 reloc
->relent
.addend
= cache_ptr
->symbol
.value
;
1482 cache_ptr
->symbol
.section
= into_section
;
1483 reloc
->relent
.sym_ptr_ptr
= into_section
->symbol_ptr_ptr
;
1485 /* We modify the symbol to belong to a section depending upon
1486 the name of the symbol, and add to the size of the section
1487 to contain a pointer to the symbol. Build a reloc entry to
1488 relocate to this symbol attached to this section. */
1489 section
->flags
= SEC_CONSTRUCTOR
| SEC_RELOC
;
1491 section
->reloc_count
++;
1492 section
->alignment_power
= 2;
1494 reloc
->next
= section
->constructor_chain
;
1495 section
->constructor_chain
= reloc
;
1496 reloc
->relent
.address
= section
->_raw_size
;
1497 section
->_raw_size
+= BYTES_IN_WORD
;
1499 reloc
->relent
.howto
= CTOR_TABLE_RELOC_HOWTO(abfd
);
1501 cache_ptr
->symbol
.flags
|= BSF_CONSTRUCTOR
;
1506 /* This symbol is the text of a warning message. The next
1507 symbol is the symbol to associate the warning with. If a
1508 reference is made to that symbol, a warning is issued. */
1509 cache_ptr
->symbol
.flags
= BSF_DEBUGGING
| BSF_WARNING
;
1510 cache_ptr
->symbol
.section
= bfd_abs_section_ptr
;
1513 case N_INDR
: case N_INDR
| N_EXT
:
1514 /* An indirect symbol. This consists of two symbols in a row.
1515 The first symbol is the name of the indirection. The second
1516 symbol is the name of the target. A reference to the first
1517 symbol becomes a reference to the second. */
1518 cache_ptr
->symbol
.flags
= BSF_DEBUGGING
| BSF_INDIRECT
| visible
;
1519 cache_ptr
->symbol
.section
= bfd_ind_section_ptr
;
1523 cache_ptr
->symbol
.section
= bfd_und_section_ptr
;
1524 cache_ptr
->symbol
.flags
= BSF_WEAK
;
1528 cache_ptr
->symbol
.section
= bfd_abs_section_ptr
;
1529 cache_ptr
->symbol
.flags
= BSF_WEAK
;
1533 cache_ptr
->symbol
.section
= obj_textsec (abfd
);
1534 cache_ptr
->symbol
.value
-= cache_ptr
->symbol
.section
->vma
;
1535 cache_ptr
->symbol
.flags
= BSF_WEAK
;
1539 cache_ptr
->symbol
.section
= obj_datasec (abfd
);
1540 cache_ptr
->symbol
.value
-= cache_ptr
->symbol
.section
->vma
;
1541 cache_ptr
->symbol
.flags
= BSF_WEAK
;
1545 cache_ptr
->symbol
.section
= obj_bsssec (abfd
);
1546 cache_ptr
->symbol
.value
-= cache_ptr
->symbol
.section
->vma
;
1547 cache_ptr
->symbol
.flags
= BSF_WEAK
;
1554 /* Set the fields of SYM_POINTER according to CACHE_PTR. */
1557 translate_to_native_sym_flags (abfd
, cache_ptr
, sym_pointer
)
1560 struct external_nlist
*sym_pointer
;
1562 bfd_vma value
= cache_ptr
->value
;
1566 /* Mask out any existing type bits in case copying from one section
1568 sym_pointer
->e_type
[0] &= ~N_TYPE
;
1570 sec
= bfd_get_section (cache_ptr
);
1575 /* This case occurs, e.g., for the *DEBUG* section of a COFF
1577 bfd_set_error (bfd_error_nonrepresentable_section
);
1581 if (sec
->output_section
!= NULL
)
1583 off
= sec
->output_offset
;
1584 sec
= sec
->output_section
;
1587 if (bfd_is_abs_section (sec
))
1588 sym_pointer
->e_type
[0] |= N_ABS
;
1589 else if (sec
== obj_textsec (abfd
))
1590 sym_pointer
->e_type
[0] |= N_TEXT
;
1591 else if (sec
== obj_datasec (abfd
))
1592 sym_pointer
->e_type
[0] |= N_DATA
;
1593 else if (sec
== obj_bsssec (abfd
))
1594 sym_pointer
->e_type
[0] |= N_BSS
;
1595 else if (bfd_is_und_section (sec
))
1596 sym_pointer
->e_type
[0] = N_UNDF
| N_EXT
;
1597 else if (bfd_is_ind_section (sec
))
1598 sym_pointer
->e_type
[0] = N_INDR
;
1599 else if (bfd_is_com_section (sec
))
1600 sym_pointer
->e_type
[0] = N_UNDF
| N_EXT
;
1603 bfd_set_error (bfd_error_nonrepresentable_section
);
1607 /* Turn the symbol from section relative to absolute again */
1608 value
+= sec
->vma
+ off
;
1610 if ((cache_ptr
->flags
& BSF_WARNING
) != 0)
1611 sym_pointer
->e_type
[0] = N_WARNING
;
1613 if ((cache_ptr
->flags
& BSF_DEBUGGING
) != 0)
1614 sym_pointer
->e_type
[0] = ((aout_symbol_type
*) cache_ptr
)->type
;
1615 else if ((cache_ptr
->flags
& BSF_GLOBAL
) != 0)
1616 sym_pointer
->e_type
[0] |= N_EXT
;
1618 if ((cache_ptr
->flags
& BSF_CONSTRUCTOR
) != 0)
1620 int type
= ((aout_symbol_type
*) cache_ptr
)->type
;
1623 case N_ABS
: type
= N_SETA
; break;
1624 case N_TEXT
: type
= N_SETT
; break;
1625 case N_DATA
: type
= N_SETD
; break;
1626 case N_BSS
: type
= N_SETB
; break;
1628 sym_pointer
->e_type
[0] = type
;
1631 if ((cache_ptr
->flags
& BSF_WEAK
) != 0)
1635 switch (sym_pointer
->e_type
[0] & N_TYPE
)
1638 case N_ABS
: type
= N_WEAKA
; break;
1639 case N_TEXT
: type
= N_WEAKT
; break;
1640 case N_DATA
: type
= N_WEAKD
; break;
1641 case N_BSS
: type
= N_WEAKB
; break;
1642 case N_UNDF
: type
= N_WEAKU
; break;
1644 sym_pointer
->e_type
[0] = type
;
1647 PUT_WORD(abfd
, value
, sym_pointer
->e_value
);
1652 /* Native-level interface to symbols. */
1655 NAME(aout
,make_empty_symbol
) (abfd
)
1658 aout_symbol_type
*new =
1659 (aout_symbol_type
*)bfd_zalloc (abfd
, sizeof (aout_symbol_type
));
1662 bfd_set_error (bfd_error_no_memory
);
1665 new->symbol
.the_bfd
= abfd
;
1667 return &new->symbol
;
1670 /* Translate a set of internal symbols into external symbols. */
1673 NAME(aout
,translate_symbol_table
) (abfd
, in
, ext
, count
, str
, strsize
, dynamic
)
1675 aout_symbol_type
*in
;
1676 struct external_nlist
*ext
;
1677 bfd_size_type count
;
1679 bfd_size_type strsize
;
1682 struct external_nlist
*ext_end
;
1684 ext_end
= ext
+ count
;
1685 for (; ext
< ext_end
; ext
++, in
++)
1689 x
= GET_WORD (abfd
, ext
->e_strx
);
1690 in
->symbol
.the_bfd
= abfd
;
1692 /* For the normal symbols, the zero index points at the number
1693 of bytes in the string table but is to be interpreted as the
1694 null string. For the dynamic symbols, the number of bytes in
1695 the string table is stored in the __DYNAMIC structure and the
1696 zero index points at an actual string. */
1697 if (x
== 0 && ! dynamic
)
1698 in
->symbol
.name
= "";
1699 else if (x
< strsize
)
1700 in
->symbol
.name
= str
+ x
;
1704 in
->symbol
.value
= GET_SWORD (abfd
, ext
->e_value
);
1705 in
->desc
= bfd_h_get_16 (abfd
, ext
->e_desc
);
1706 in
->other
= bfd_h_get_8 (abfd
, ext
->e_other
);
1707 in
->type
= bfd_h_get_8 (abfd
, ext
->e_type
);
1708 in
->symbol
.udata
.p
= NULL
;
1710 if (! translate_from_native_sym_flags (abfd
, in
))
1714 in
->symbol
.flags
|= BSF_DYNAMIC
;
1720 /* We read the symbols into a buffer, which is discarded when this
1721 function exits. We read the strings into a buffer large enough to
1722 hold them all plus all the cached symbol entries. */
1725 NAME(aout
,slurp_symbol_table
) (abfd
)
1728 struct external_nlist
*old_external_syms
;
1729 aout_symbol_type
*cached
;
1732 /* If there's no work to be done, don't do any */
1733 if (obj_aout_symbols (abfd
) != (aout_symbol_type
*) NULL
)
1736 old_external_syms
= obj_aout_external_syms (abfd
);
1738 if (! aout_get_external_symbols (abfd
))
1741 cached_size
= (obj_aout_external_sym_count (abfd
)
1742 * sizeof (aout_symbol_type
));
1743 cached
= (aout_symbol_type
*) malloc (cached_size
);
1744 if (cached
== NULL
&& cached_size
!= 0)
1746 bfd_set_error (bfd_error_no_memory
);
1749 if (cached_size
!= 0)
1750 memset (cached
, 0, cached_size
);
1752 /* Convert from external symbol information to internal. */
1753 if (! (NAME(aout
,translate_symbol_table
)
1755 obj_aout_external_syms (abfd
),
1756 obj_aout_external_sym_count (abfd
),
1757 obj_aout_external_strings (abfd
),
1758 obj_aout_external_string_size (abfd
),
1765 bfd_get_symcount (abfd
) = obj_aout_external_sym_count (abfd
);
1767 obj_aout_symbols (abfd
) = cached
;
1769 /* It is very likely that anybody who calls this function will not
1770 want the external symbol information, so if it was allocated
1771 because of our call to aout_get_external_symbols, we free it up
1772 right away to save space. */
1773 if (old_external_syms
== (struct external_nlist
*) NULL
1774 && obj_aout_external_syms (abfd
) != (struct external_nlist
*) NULL
)
1777 bfd_free_window (&obj_aout_sym_window (abfd
));
1779 free (obj_aout_external_syms (abfd
));
1781 obj_aout_external_syms (abfd
) = NULL
;
1787 /* We use a hash table when writing out symbols so that we only write
1788 out a particular string once. This helps particularly when the
1789 linker writes out stabs debugging entries, because each different
1790 contributing object file tends to have many duplicate stabs
1793 This hash table code breaks dbx on SunOS 4.1.3, so we don't do it
1794 if BFD_TRADITIONAL_FORMAT is set. */
1796 static bfd_size_type add_to_stringtab
1797 PARAMS ((bfd
*, struct bfd_strtab_hash
*, const char *, boolean
));
1798 static boolean emit_stringtab
PARAMS ((bfd
*, struct bfd_strtab_hash
*));
1800 /* Get the index of a string in a strtab, adding it if it is not
1803 static INLINE bfd_size_type
1804 add_to_stringtab (abfd
, tab
, str
, copy
)
1806 struct bfd_strtab_hash
*tab
;
1811 bfd_size_type index
;
1813 /* An index of 0 always means the empty string. */
1814 if (str
== 0 || *str
== '\0')
1817 /* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx
1818 doesn't understand a hashed string table. */
1820 if ((abfd
->flags
& BFD_TRADITIONAL_FORMAT
) != 0)
1823 index
= _bfd_stringtab_add (tab
, str
, hash
, copy
);
1825 if (index
!= (bfd_size_type
) -1)
1827 /* Add BYTES_IN_WORD to the return value to account for the
1828 space taken up by the string table size. */
1829 index
+= BYTES_IN_WORD
;
1835 /* Write out a strtab. ABFD is already at the right location in the
1839 emit_stringtab (abfd
, tab
)
1841 struct bfd_strtab_hash
*tab
;
1843 bfd_byte buffer
[BYTES_IN_WORD
];
1845 /* The string table starts with the size. */
1846 PUT_WORD (abfd
, _bfd_stringtab_size (tab
) + BYTES_IN_WORD
, buffer
);
1847 if (bfd_write ((PTR
) buffer
, 1, BYTES_IN_WORD
, abfd
) != BYTES_IN_WORD
)
1850 return _bfd_stringtab_emit (abfd
, tab
);
1854 NAME(aout
,write_syms
) (abfd
)
1857 unsigned int count
;
1858 asymbol
**generic
= bfd_get_outsymbols (abfd
);
1859 struct bfd_strtab_hash
*strtab
;
1861 strtab
= _bfd_stringtab_init ();
1865 for (count
= 0; count
< bfd_get_symcount (abfd
); count
++)
1867 asymbol
*g
= generic
[count
];
1869 struct external_nlist nsp
;
1871 indx
= add_to_stringtab (abfd
, strtab
, g
->name
, false);
1872 if (indx
== (bfd_size_type
) -1)
1874 PUT_WORD (abfd
, indx
, (bfd_byte
*) nsp
.e_strx
);
1876 if (bfd_asymbol_flavour(g
) == abfd
->xvec
->flavour
)
1878 bfd_h_put_16(abfd
, aout_symbol(g
)->desc
, nsp
.e_desc
);
1879 bfd_h_put_8(abfd
, aout_symbol(g
)->other
, nsp
.e_other
);
1880 bfd_h_put_8(abfd
, aout_symbol(g
)->type
, nsp
.e_type
);
1884 bfd_h_put_16(abfd
,0, nsp
.e_desc
);
1885 bfd_h_put_8(abfd
, 0, nsp
.e_other
);
1886 bfd_h_put_8(abfd
, 0, nsp
.e_type
);
1889 if (! translate_to_native_sym_flags (abfd
, g
, &nsp
))
1892 if (bfd_write((PTR
)&nsp
,1,EXTERNAL_NLIST_SIZE
, abfd
)
1893 != EXTERNAL_NLIST_SIZE
)
1896 /* NB: `KEEPIT' currently overlays `udata.p', so set this only
1897 here, at the end. */
1901 if (! emit_stringtab (abfd
, strtab
))
1904 _bfd_stringtab_free (strtab
);
1909 _bfd_stringtab_free (strtab
);
1915 NAME(aout
,get_symtab
) (abfd
, location
)
1919 unsigned int counter
= 0;
1920 aout_symbol_type
*symbase
;
1922 if (!NAME(aout
,slurp_symbol_table
)(abfd
))
1925 for (symbase
= obj_aout_symbols(abfd
); counter
++ < bfd_get_symcount (abfd
);)
1926 *(location
++) = (asymbol
*)( symbase
++);
1928 return bfd_get_symcount (abfd
);
1932 /* Standard reloc stuff */
1933 /* Output standard relocation information to a file in target byte order. */
1936 NAME(aout
,swap_std_reloc_out
) (abfd
, g
, natptr
)
1939 struct reloc_std_external
*natptr
;
1942 asymbol
*sym
= *(g
->sym_ptr_ptr
);
1944 unsigned int r_length
;
1946 int r_baserel
, r_jmptable
, r_relative
;
1947 asection
*output_section
= sym
->section
->output_section
;
1949 PUT_WORD(abfd
, g
->address
, natptr
->r_address
);
1951 r_length
= g
->howto
->size
; /* Size as a power of two */
1952 r_pcrel
= (int) g
->howto
->pc_relative
; /* Relative to PC? */
1953 /* XXX This relies on relocs coming from a.out files. */
1954 r_baserel
= (g
->howto
->type
& 8) != 0;
1955 r_jmptable
= (g
->howto
->type
& 16) != 0;
1956 r_relative
= (g
->howto
->type
& 32) != 0;
1959 /* For a standard reloc, the addend is in the object file. */
1960 r_addend
= g
->addend
+ (*(g
->sym_ptr_ptr
))->section
->output_section
->vma
;
1963 /* name was clobbered by aout_write_syms to be symbol index */
1965 /* If this relocation is relative to a symbol then set the
1966 r_index to the symbols index, and the r_extern bit.
1968 Absolute symbols can come in in two ways, either as an offset
1969 from the abs section, or as a symbol which has an abs value.
1974 if (bfd_is_com_section (output_section
)
1975 || bfd_is_abs_section (output_section
)
1976 || bfd_is_und_section (output_section
))
1978 if (bfd_abs_section_ptr
->symbol
== sym
)
1980 /* Whoops, looked like an abs symbol, but is really an offset
1981 from the abs section */
1987 /* Fill in symbol */
1989 r_index
= (*(g
->sym_ptr_ptr
))->KEEPIT
;
1995 /* Just an ordinary section */
1997 r_index
= output_section
->target_index
;
2000 /* now the fun stuff */
2001 if (abfd
->xvec
->header_byteorder_big_p
!= false) {
2002 natptr
->r_index
[0] = r_index
>> 16;
2003 natptr
->r_index
[1] = r_index
>> 8;
2004 natptr
->r_index
[2] = r_index
;
2006 (r_extern
? RELOC_STD_BITS_EXTERN_BIG
: 0)
2007 | (r_pcrel
? RELOC_STD_BITS_PCREL_BIG
: 0)
2008 | (r_baserel
? RELOC_STD_BITS_BASEREL_BIG
: 0)
2009 | (r_jmptable
? RELOC_STD_BITS_JMPTABLE_BIG
: 0)
2010 | (r_relative
? RELOC_STD_BITS_RELATIVE_BIG
: 0)
2011 | (r_length
<< RELOC_STD_BITS_LENGTH_SH_BIG
);
2013 natptr
->r_index
[2] = r_index
>> 16;
2014 natptr
->r_index
[1] = r_index
>> 8;
2015 natptr
->r_index
[0] = r_index
;
2017 (r_extern
? RELOC_STD_BITS_EXTERN_LITTLE
: 0)
2018 | (r_pcrel
? RELOC_STD_BITS_PCREL_LITTLE
: 0)
2019 | (r_baserel
? RELOC_STD_BITS_BASEREL_LITTLE
: 0)
2020 | (r_jmptable
? RELOC_STD_BITS_JMPTABLE_LITTLE
: 0)
2021 | (r_relative
? RELOC_STD_BITS_RELATIVE_LITTLE
: 0)
2022 | (r_length
<< RELOC_STD_BITS_LENGTH_SH_LITTLE
);
2027 /* Extended stuff */
2028 /* Output extended relocation information to a file in target byte order. */
2031 NAME(aout
,swap_ext_reloc_out
) (abfd
, g
, natptr
)
2034 register struct reloc_ext_external
*natptr
;
2038 unsigned int r_type
;
2039 unsigned int r_addend
;
2040 asymbol
*sym
= *(g
->sym_ptr_ptr
);
2041 asection
*output_section
= sym
->section
->output_section
;
2043 PUT_WORD (abfd
, g
->address
, natptr
->r_address
);
2045 r_type
= (unsigned int) g
->howto
->type
;
2047 r_addend
= g
->addend
;
2048 if ((sym
->flags
& BSF_SECTION_SYM
) != 0)
2049 r_addend
+= (*(g
->sym_ptr_ptr
))->section
->output_section
->vma
;
2051 /* If this relocation is relative to a symbol then set the
2052 r_index to the symbols index, and the r_extern bit.
2054 Absolute symbols can come in in two ways, either as an offset
2055 from the abs section, or as a symbol which has an abs value.
2056 check for that here. */
2058 if (bfd_is_abs_section (bfd_get_section (sym
)))
2063 else if ((sym
->flags
& BSF_SECTION_SYM
) == 0)
2065 if (bfd_is_und_section (bfd_get_section (sym
))
2066 || (sym
->flags
& BSF_GLOBAL
) != 0)
2070 r_index
= (*(g
->sym_ptr_ptr
))->KEEPIT
;
2074 /* Just an ordinary section */
2076 r_index
= output_section
->target_index
;
2079 /* now the fun stuff */
2080 if (abfd
->xvec
->header_byteorder_big_p
!= false) {
2081 natptr
->r_index
[0] = r_index
>> 16;
2082 natptr
->r_index
[1] = r_index
>> 8;
2083 natptr
->r_index
[2] = r_index
;
2085 ((r_extern
? RELOC_EXT_BITS_EXTERN_BIG
: 0)
2086 | (r_type
<< RELOC_EXT_BITS_TYPE_SH_BIG
));
2088 natptr
->r_index
[2] = r_index
>> 16;
2089 natptr
->r_index
[1] = r_index
>> 8;
2090 natptr
->r_index
[0] = r_index
;
2092 (r_extern
? RELOC_EXT_BITS_EXTERN_LITTLE
: 0)
2093 | (r_type
<< RELOC_EXT_BITS_TYPE_SH_LITTLE
);
2096 PUT_WORD (abfd
, r_addend
, natptr
->r_addend
);
2099 /* BFD deals internally with all things based from the section they're
2100 in. so, something in 10 bytes into a text section with a base of
2101 50 would have a symbol (.text+10) and know .text vma was 50.
2103 Aout keeps all it's symbols based from zero, so the symbol would
2104 contain 60. This macro subs the base of each section from the value
2105 to give the true offset from the section */
2108 #define MOVE_ADDRESS(ad) \
2110 /* undefined symbol */ \
2111 cache_ptr->sym_ptr_ptr = symbols + r_index; \
2112 cache_ptr->addend = ad; \
2114 /* defined, section relative. replace symbol with pointer to \
2115 symbol which points to section */ \
2116 switch (r_index) { \
2118 case N_TEXT | N_EXT: \
2119 cache_ptr->sym_ptr_ptr = obj_textsec(abfd)->symbol_ptr_ptr; \
2120 cache_ptr->addend = ad - su->textsec->vma; \
2123 case N_DATA | N_EXT: \
2124 cache_ptr->sym_ptr_ptr = obj_datasec(abfd)->symbol_ptr_ptr; \
2125 cache_ptr->addend = ad - su->datasec->vma; \
2128 case N_BSS | N_EXT: \
2129 cache_ptr->sym_ptr_ptr = obj_bsssec(abfd)->symbol_ptr_ptr; \
2130 cache_ptr->addend = ad - su->bsssec->vma; \
2134 case N_ABS | N_EXT: \
2135 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \
2136 cache_ptr->addend = ad; \
2142 NAME(aout
,swap_ext_reloc_in
) (abfd
, bytes
, cache_ptr
, symbols
, symcount
)
2144 struct reloc_ext_external
*bytes
;
2147 bfd_size_type symcount
;
2149 unsigned int r_index
;
2151 unsigned int r_type
;
2152 struct aoutdata
*su
= &(abfd
->tdata
.aout_data
->a
);
2154 cache_ptr
->address
= (GET_SWORD (abfd
, bytes
->r_address
));
2156 /* now the fun stuff */
2157 if (abfd
->xvec
->header_byteorder_big_p
!= false) {
2158 r_index
= (bytes
->r_index
[0] << 16)
2159 | (bytes
->r_index
[1] << 8)
2160 | bytes
->r_index
[2];
2161 r_extern
= (0 != (bytes
->r_type
[0] & RELOC_EXT_BITS_EXTERN_BIG
));
2162 r_type
= (bytes
->r_type
[0] & RELOC_EXT_BITS_TYPE_BIG
)
2163 >> RELOC_EXT_BITS_TYPE_SH_BIG
;
2165 r_index
= (bytes
->r_index
[2] << 16)
2166 | (bytes
->r_index
[1] << 8)
2167 | bytes
->r_index
[0];
2168 r_extern
= (0 != (bytes
->r_type
[0] & RELOC_EXT_BITS_EXTERN_LITTLE
));
2169 r_type
= (bytes
->r_type
[0] & RELOC_EXT_BITS_TYPE_LITTLE
)
2170 >> RELOC_EXT_BITS_TYPE_SH_LITTLE
;
2173 cache_ptr
->howto
= howto_table_ext
+ r_type
;
2175 /* Base relative relocs are always against the symbol table,
2176 regardless of the setting of r_extern. r_extern just reflects
2177 whether the symbol the reloc is against is local or global. */
2178 if (r_type
== RELOC_BASE10
2179 || r_type
== RELOC_BASE13
2180 || r_type
== RELOC_BASE22
)
2183 if (r_extern
&& r_index
> symcount
)
2185 /* We could arrange to return an error, but it might be useful
2186 to see the file even if it is bad. */
2191 MOVE_ADDRESS(GET_SWORD(abfd
, bytes
->r_addend
));
2195 NAME(aout
,swap_std_reloc_in
) (abfd
, bytes
, cache_ptr
, symbols
, symcount
)
2197 struct reloc_std_external
*bytes
;
2200 bfd_size_type symcount
;
2202 unsigned int r_index
;
2204 unsigned int r_length
;
2206 int r_baserel
, r_jmptable
, r_relative
;
2207 struct aoutdata
*su
= &(abfd
->tdata
.aout_data
->a
);
2208 unsigned int howto_idx
;
2210 cache_ptr
->address
= bfd_h_get_32 (abfd
, bytes
->r_address
);
2212 /* now the fun stuff */
2213 if (abfd
->xvec
->header_byteorder_big_p
!= false) {
2214 r_index
= (bytes
->r_index
[0] << 16)
2215 | (bytes
->r_index
[1] << 8)
2216 | bytes
->r_index
[2];
2217 r_extern
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_EXTERN_BIG
));
2218 r_pcrel
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_PCREL_BIG
));
2219 r_baserel
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_BASEREL_BIG
));
2220 r_jmptable
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_JMPTABLE_BIG
));
2221 r_relative
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_RELATIVE_BIG
));
2222 r_length
= (bytes
->r_type
[0] & RELOC_STD_BITS_LENGTH_BIG
)
2223 >> RELOC_STD_BITS_LENGTH_SH_BIG
;
2225 r_index
= (bytes
->r_index
[2] << 16)
2226 | (bytes
->r_index
[1] << 8)
2227 | bytes
->r_index
[0];
2228 r_extern
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_EXTERN_LITTLE
));
2229 r_pcrel
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_PCREL_LITTLE
));
2230 r_baserel
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_BASEREL_LITTLE
));
2231 r_jmptable
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_JMPTABLE_LITTLE
));
2232 r_relative
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_RELATIVE_LITTLE
));
2233 r_length
= (bytes
->r_type
[0] & RELOC_STD_BITS_LENGTH_LITTLE
)
2234 >> RELOC_STD_BITS_LENGTH_SH_LITTLE
;
2237 howto_idx
= r_length
+ 4 * r_pcrel
+ 8 * r_baserel
2238 + 16 * r_jmptable
+ 32 * r_relative
;
2239 BFD_ASSERT (howto_idx
< TABLE_SIZE (howto_table_std
));
2240 cache_ptr
->howto
= howto_table_std
+ howto_idx
;
2241 BFD_ASSERT (cache_ptr
->howto
->type
!= (unsigned int) -1);
2243 /* Base relative relocs are always against the symbol table,
2244 regardless of the setting of r_extern. r_extern just reflects
2245 whether the symbol the reloc is against is local or global. */
2249 if (r_extern
&& r_index
> symcount
)
2251 /* We could arrange to return an error, but it might be useful
2252 to see the file even if it is bad. */
2260 /* Read and swap the relocs for a section. */
2263 NAME(aout
,slurp_reloc_table
) (abfd
, asect
, symbols
)
2269 bfd_size_type reloc_size
;
2271 arelent
*reloc_cache
;
2273 unsigned int counter
= 0;
2276 if (asect
->relocation
)
2279 if (asect
->flags
& SEC_CONSTRUCTOR
)
2282 if (asect
== obj_datasec (abfd
))
2283 reloc_size
= exec_hdr(abfd
)->a_drsize
;
2284 else if (asect
== obj_textsec (abfd
))
2285 reloc_size
= exec_hdr(abfd
)->a_trsize
;
2286 else if (asect
== obj_bsssec (abfd
))
2290 bfd_set_error (bfd_error_invalid_operation
);
2294 if (bfd_seek (abfd
, asect
->rel_filepos
, SEEK_SET
) != 0)
2297 each_size
= obj_reloc_entry_size (abfd
);
2299 count
= reloc_size
/ each_size
;
2301 reloc_cache
= (arelent
*) malloc ((size_t) (count
* sizeof (arelent
)));
2302 if (reloc_cache
== NULL
&& count
!= 0)
2304 bfd_set_error (bfd_error_no_memory
);
2307 memset (reloc_cache
, 0, count
* sizeof (arelent
));
2309 relocs
= malloc ((size_t) reloc_size
);
2310 if (relocs
== NULL
&& reloc_size
!= 0)
2313 bfd_set_error (bfd_error_no_memory
);
2317 if (bfd_read (relocs
, 1, reloc_size
, abfd
) != reloc_size
)
2324 cache_ptr
= reloc_cache
;
2325 if (each_size
== RELOC_EXT_SIZE
)
2327 register struct reloc_ext_external
*rptr
=
2328 (struct reloc_ext_external
*) relocs
;
2330 for (; counter
< count
; counter
++, rptr
++, cache_ptr
++)
2331 NAME(aout
,swap_ext_reloc_in
) (abfd
, rptr
, cache_ptr
, symbols
,
2332 bfd_get_symcount (abfd
));
2336 register struct reloc_std_external
*rptr
=
2337 (struct reloc_std_external
*) relocs
;
2339 for (; counter
< count
; counter
++, rptr
++, cache_ptr
++)
2340 MY_swap_std_reloc_in (abfd
, rptr
, cache_ptr
, symbols
,
2341 bfd_get_symcount (abfd
));
2346 asect
->relocation
= reloc_cache
;
2347 asect
->reloc_count
= cache_ptr
- reloc_cache
;
2352 /* Write out a relocation section into an object file. */
2355 NAME(aout
,squirt_out_relocs
) (abfd
, section
)
2360 unsigned char *native
, *natptr
;
2363 unsigned int count
= section
->reloc_count
;
2366 if (count
== 0) return true;
2368 each_size
= obj_reloc_entry_size (abfd
);
2369 natsize
= each_size
* count
;
2370 native
= (unsigned char *) bfd_zalloc (abfd
, natsize
);
2372 bfd_set_error (bfd_error_no_memory
);
2376 generic
= section
->orelocation
;
2378 if (each_size
== RELOC_EXT_SIZE
)
2380 for (natptr
= native
;
2382 --count
, natptr
+= each_size
, ++generic
)
2383 NAME(aout
,swap_ext_reloc_out
) (abfd
, *generic
, (struct reloc_ext_external
*)natptr
);
2387 for (natptr
= native
;
2389 --count
, natptr
+= each_size
, ++generic
)
2390 MY_swap_std_reloc_out(abfd
, *generic
, (struct reloc_std_external
*)natptr
);
2393 if ( bfd_write ((PTR
) native
, 1, natsize
, abfd
) != natsize
) {
2394 bfd_release(abfd
, native
);
2397 bfd_release (abfd
, native
);
2402 /* This is stupid. This function should be a boolean predicate */
2404 NAME(aout
,canonicalize_reloc
) (abfd
, section
, relptr
, symbols
)
2410 arelent
*tblptr
= section
->relocation
;
2413 if (section
== obj_bsssec (abfd
))
2419 if (!(tblptr
|| NAME(aout
,slurp_reloc_table
)(abfd
, section
, symbols
)))
2422 if (section
->flags
& SEC_CONSTRUCTOR
) {
2423 arelent_chain
*chain
= section
->constructor_chain
;
2424 for (count
= 0; count
< section
->reloc_count
; count
++) {
2425 *relptr
++ = &chain
->relent
;
2426 chain
= chain
->next
;
2430 tblptr
= section
->relocation
;
2432 for (count
= 0; count
++ < section
->reloc_count
;)
2434 *relptr
++ = tblptr
++;
2439 return section
->reloc_count
;
2443 NAME(aout
,get_reloc_upper_bound
) (abfd
, asect
)
2447 if (bfd_get_format (abfd
) != bfd_object
) {
2448 bfd_set_error (bfd_error_invalid_operation
);
2451 if (asect
->flags
& SEC_CONSTRUCTOR
) {
2452 return (sizeof (arelent
*) * (asect
->reloc_count
+1));
2455 if (asect
== obj_datasec (abfd
))
2456 return (sizeof (arelent
*)
2457 * ((exec_hdr(abfd
)->a_drsize
/ obj_reloc_entry_size (abfd
))
2460 if (asect
== obj_textsec (abfd
))
2461 return (sizeof (arelent
*)
2462 * ((exec_hdr(abfd
)->a_trsize
/ obj_reloc_entry_size (abfd
))
2465 if (asect
== obj_bsssec (abfd
))
2466 return sizeof (arelent
*);
2468 if (asect
== obj_bsssec (abfd
))
2471 bfd_set_error (bfd_error_invalid_operation
);
2477 NAME(aout
,get_symtab_upper_bound
) (abfd
)
2480 if (!NAME(aout
,slurp_symbol_table
)(abfd
))
2483 return (bfd_get_symcount (abfd
)+1) * (sizeof (aout_symbol_type
*));
2488 NAME(aout
,get_lineno
) (ignore_abfd
, ignore_symbol
)
2490 asymbol
*ignore_symbol
;
2492 return (alent
*)NULL
;
2497 NAME(aout
,get_symbol_info
) (ignore_abfd
, symbol
, ret
)
2502 bfd_symbol_info (symbol
, ret
);
2504 if (ret
->type
== '?')
2506 int type_code
= aout_symbol(symbol
)->type
& 0xff;
2507 CONST
char *stab_name
= aout_stab_name(type_code
);
2508 static char buf
[10];
2510 if (stab_name
== NULL
)
2512 sprintf(buf
, "(%d)", type_code
);
2516 ret
->stab_other
= (unsigned)(aout_symbol(symbol
)->other
& 0xff);
2517 ret
->stab_desc
= (unsigned)(aout_symbol(symbol
)->desc
& 0xffff);
2518 ret
->stab_name
= stab_name
;
2524 NAME(aout
,print_symbol
) (ignore_abfd
, afile
, symbol
, how
)
2528 bfd_print_symbol_type how
;
2530 FILE *file
= (FILE *)afile
;
2533 case bfd_print_symbol_name
:
2535 fprintf(file
,"%s", symbol
->name
);
2537 case bfd_print_symbol_more
:
2538 fprintf(file
,"%4x %2x %2x",(unsigned)(aout_symbol(symbol
)->desc
& 0xffff),
2539 (unsigned)(aout_symbol(symbol
)->other
& 0xff),
2540 (unsigned)(aout_symbol(symbol
)->type
));
2542 case bfd_print_symbol_all
:
2544 CONST
char *section_name
= symbol
->section
->name
;
2547 bfd_print_symbol_vandf((PTR
)file
,symbol
);
2549 fprintf(file
," %-5s %04x %02x %02x",
2551 (unsigned)(aout_symbol(symbol
)->desc
& 0xffff),
2552 (unsigned)(aout_symbol(symbol
)->other
& 0xff),
2553 (unsigned)(aout_symbol(symbol
)->type
& 0xff));
2555 fprintf(file
," %s", symbol
->name
);
2561 /* If we don't have to allocate more than 1MB to hold the generic
2562 symbols, we use the generic minisymbol methord: it's faster, since
2563 it only translates the symbols once, not multiple times. */
2564 #define MINISYM_THRESHOLD (1000000 / sizeof (asymbol))
2566 /* Read minisymbols. For minisymbols, we use the unmodified a.out
2567 symbols. The minisymbol_to_symbol function translates these into
2568 BFD asymbol structures. */
2571 NAME(aout
,read_minisymbols
) (abfd
, dynamic
, minisymsp
, sizep
)
2575 unsigned int *sizep
;
2579 /* We could handle the dynamic symbols here as well, but it's
2580 easier to hand them off. */
2581 return _bfd_generic_read_minisymbols (abfd
, dynamic
, minisymsp
, sizep
);
2584 if (! aout_get_external_symbols (abfd
))
2587 if (obj_aout_external_sym_count (abfd
) < MINISYM_THRESHOLD
)
2588 return _bfd_generic_read_minisymbols (abfd
, dynamic
, minisymsp
, sizep
);
2590 *minisymsp
= (PTR
) obj_aout_external_syms (abfd
);
2592 /* By passing the external symbols back from this routine, we are
2593 giving up control over the memory block. Clear
2594 obj_aout_external_syms, so that we do not try to free it
2596 obj_aout_external_syms (abfd
) = NULL
;
2598 *sizep
= EXTERNAL_NLIST_SIZE
;
2599 return obj_aout_external_sym_count (abfd
);
2602 /* Convert a minisymbol to a BFD asymbol. A minisymbol is just an
2603 unmodified a.out symbol. The SYM argument is a structure returned
2604 by bfd_make_empty_symbol, which we fill in here. */
2607 NAME(aout
,minisymbol_to_symbol
) (abfd
, dynamic
, minisym
, sym
)
2614 || obj_aout_external_sym_count (abfd
) < MINISYM_THRESHOLD
)
2615 return _bfd_generic_minisymbol_to_symbol (abfd
, dynamic
, minisym
, sym
);
2617 memset (sym
, 0, sizeof (aout_symbol_type
));
2619 /* We call translate_symbol_table to translate a single symbol. */
2620 if (! (NAME(aout
,translate_symbol_table
)
2622 (aout_symbol_type
*) sym
,
2623 (struct external_nlist
*) minisym
,
2625 obj_aout_external_strings (abfd
),
2626 obj_aout_external_string_size (abfd
),
2634 provided a BFD, a section and an offset into the section, calculate
2635 and return the name of the source file and the line nearest to the
2640 NAME(aout
,find_nearest_line
)
2641 (abfd
, section
, symbols
, offset
, filename_ptr
, functionname_ptr
, line_ptr
)
2646 CONST
char **filename_ptr
;
2647 CONST
char **functionname_ptr
;
2648 unsigned int *line_ptr
;
2650 /* Run down the file looking for the filename, function and linenumber */
2652 CONST
char *directory_name
= NULL
;
2653 CONST
char *main_file_name
= NULL
;
2654 CONST
char *current_file_name
= NULL
;
2655 CONST
char *line_file_name
= NULL
; /* Value of current_file_name at line number. */
2656 bfd_vma low_line_vma
= 0;
2657 bfd_vma low_func_vma
= 0;
2659 size_t filelen
, funclen
;
2662 *filename_ptr
= abfd
->filename
;
2663 *functionname_ptr
= 0;
2665 if (symbols
!= (asymbol
**)NULL
) {
2666 for (p
= symbols
; *p
; p
++) {
2667 aout_symbol_type
*q
= (aout_symbol_type
*)(*p
);
2671 main_file_name
= current_file_name
= q
->symbol
.name
;
2672 /* Look ahead to next symbol to check if that too is an N_SO. */
2676 q
= (aout_symbol_type
*)(*p
);
2677 if (q
->type
!= (int)N_SO
)
2680 /* Found a second N_SO First is directory; second is filename. */
2681 directory_name
= current_file_name
;
2682 main_file_name
= current_file_name
= q
->symbol
.name
;
2683 if (obj_textsec(abfd
) != section
)
2687 current_file_name
= q
->symbol
.name
;
2694 /* We'll keep this if it resolves nearer than the one we have
2696 if (q
->symbol
.value
>= low_line_vma
2697 && q
->symbol
.value
<= offset
)
2699 *line_ptr
= q
->desc
;
2700 low_line_vma
= q
->symbol
.value
;
2701 line_file_name
= current_file_name
;
2706 /* We'll keep this if it is nearer than the one we have already */
2707 if (q
->symbol
.value
>= low_func_vma
&&
2708 q
->symbol
.value
<= offset
) {
2709 low_func_vma
= q
->symbol
.value
;
2710 func
= (asymbol
*)q
;
2712 else if (q
->symbol
.value
> offset
)
2722 main_file_name
= line_file_name
;
2724 if (main_file_name
== NULL
2725 || main_file_name
[0] == '/'
2726 || directory_name
== NULL
)
2729 filelen
= strlen (directory_name
) + strlen (main_file_name
);
2733 funclen
= strlen (bfd_asymbol_name (func
));
2735 if (adata (abfd
).line_buf
!= NULL
)
2736 free (adata (abfd
).line_buf
);
2737 if (filelen
+ funclen
== 0)
2738 adata (abfd
).line_buf
= buf
= NULL
;
2741 adata (abfd
).line_buf
= buf
= (char *) malloc (filelen
+ funclen
+ 2);
2742 if (adata (abfd
).line_buf
== NULL
)
2744 bfd_set_error (bfd_error_no_memory
);
2749 if (main_file_name
!= NULL
)
2751 if (main_file_name
[0] == '/' || directory_name
== NULL
)
2752 *filename_ptr
= main_file_name
;
2755 sprintf (buf
, "%s%s", directory_name
, main_file_name
);
2756 *filename_ptr
= buf
;
2763 const char *function
= func
->name
;
2766 /* The caller expects a symbol name. We actually have a
2767 function name, without the leading underscore. Put the
2768 underscore back in, so that the caller gets a symbol name. */
2769 if (bfd_get_symbol_leading_char (abfd
) == '\0')
2770 strcpy (buf
, function
);
2773 buf
[0] = bfd_get_symbol_leading_char (abfd
);
2774 strcpy (buf
+ 1, function
);
2776 /* Have to remove : stuff */
2777 p
= strchr (buf
, ':');
2780 *functionname_ptr
= buf
;
2788 NAME(aout
,sizeof_headers
) (abfd
, execable
)
2792 return adata(abfd
).exec_bytes_size
;
2795 /* Free all information we have cached for this BFD. We can always
2796 read it again later if we need it. */
2799 NAME(aout
,bfd_free_cached_info
) (abfd
)
2804 if (bfd_get_format (abfd
) != bfd_object
)
2807 #define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; }
2808 BFCI_FREE (obj_aout_symbols (abfd
));
2810 obj_aout_external_syms (abfd
) = 0;
2811 bfd_free_window (&obj_aout_sym_window (abfd
));
2812 bfd_free_window (&obj_aout_string_window (abfd
));
2813 obj_aout_external_strings (abfd
) = 0;
2815 BFCI_FREE (obj_aout_external_syms (abfd
));
2816 BFCI_FREE (obj_aout_external_strings (abfd
));
2818 for (o
= abfd
->sections
; o
!= (asection
*) NULL
; o
= o
->next
)
2819 BFCI_FREE (o
->relocation
);
2825 /* a.out link code. */
2827 static boolean aout_link_add_object_symbols
2828 PARAMS ((bfd
*, struct bfd_link_info
*));
2829 static boolean aout_link_check_archive_element
2830 PARAMS ((bfd
*, struct bfd_link_info
*, boolean
*));
2831 static boolean aout_link_free_symbols
PARAMS ((bfd
*));
2832 static boolean aout_link_check_ar_symbols
2833 PARAMS ((bfd
*, struct bfd_link_info
*, boolean
*pneeded
));
2834 static boolean aout_link_add_symbols
2835 PARAMS ((bfd
*, struct bfd_link_info
*));
2837 /* Routine to create an entry in an a.out link hash table. */
2839 struct bfd_hash_entry
*
2840 NAME(aout
,link_hash_newfunc
) (entry
, table
, string
)
2841 struct bfd_hash_entry
*entry
;
2842 struct bfd_hash_table
*table
;
2845 struct aout_link_hash_entry
*ret
= (struct aout_link_hash_entry
*) entry
;
2847 /* Allocate the structure if it has not already been allocated by a
2849 if (ret
== (struct aout_link_hash_entry
*) NULL
)
2850 ret
= ((struct aout_link_hash_entry
*)
2851 bfd_hash_allocate (table
, sizeof (struct aout_link_hash_entry
)));
2852 if (ret
== (struct aout_link_hash_entry
*) NULL
)
2854 bfd_set_error (bfd_error_no_memory
);
2855 return (struct bfd_hash_entry
*) ret
;
2858 /* Call the allocation method of the superclass. */
2859 ret
= ((struct aout_link_hash_entry
*)
2860 _bfd_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
2864 /* Set local fields. */
2865 ret
->written
= false;
2869 return (struct bfd_hash_entry
*) ret
;
2872 /* Initialize an a.out link hash table. */
2875 NAME(aout
,link_hash_table_init
) (table
, abfd
, newfunc
)
2876 struct aout_link_hash_table
*table
;
2878 struct bfd_hash_entry
*(*newfunc
) PARAMS ((struct bfd_hash_entry
*,
2879 struct bfd_hash_table
*,
2882 return _bfd_link_hash_table_init (&table
->root
, abfd
, newfunc
);
2885 /* Create an a.out link hash table. */
2887 struct bfd_link_hash_table
*
2888 NAME(aout
,link_hash_table_create
) (abfd
)
2891 struct aout_link_hash_table
*ret
;
2893 ret
= ((struct aout_link_hash_table
*)
2894 bfd_alloc (abfd
, sizeof (struct aout_link_hash_table
)));
2897 bfd_set_error (bfd_error_no_memory
);
2898 return (struct bfd_link_hash_table
*) NULL
;
2900 if (! NAME(aout
,link_hash_table_init
) (ret
, abfd
,
2901 NAME(aout
,link_hash_newfunc
)))
2904 return (struct bfd_link_hash_table
*) NULL
;
2909 /* Given an a.out BFD, add symbols to the global hash table as
2913 NAME(aout
,link_add_symbols
) (abfd
, info
)
2915 struct bfd_link_info
*info
;
2917 switch (bfd_get_format (abfd
))
2920 return aout_link_add_object_symbols (abfd
, info
);
2922 return _bfd_generic_link_add_archive_symbols
2923 (abfd
, info
, aout_link_check_archive_element
);
2925 bfd_set_error (bfd_error_wrong_format
);
2930 /* Add symbols from an a.out object file. */
2933 aout_link_add_object_symbols (abfd
, info
)
2935 struct bfd_link_info
*info
;
2937 if (! aout_get_external_symbols (abfd
))
2939 if (! aout_link_add_symbols (abfd
, info
))
2941 if (! info
->keep_memory
)
2943 if (! aout_link_free_symbols (abfd
))
2949 /* Check a single archive element to see if we need to include it in
2950 the link. *PNEEDED is set according to whether this element is
2951 needed in the link or not. This is called from
2952 _bfd_generic_link_add_archive_symbols. */
2955 aout_link_check_archive_element (abfd
, info
, pneeded
)
2957 struct bfd_link_info
*info
;
2960 if (! aout_get_external_symbols (abfd
))
2963 if (! aout_link_check_ar_symbols (abfd
, info
, pneeded
))
2968 if (! aout_link_add_symbols (abfd
, info
))
2972 if (! info
->keep_memory
|| ! *pneeded
)
2974 if (! aout_link_free_symbols (abfd
))
2981 /* Free up the internal symbols read from an a.out file. */
2984 aout_link_free_symbols (abfd
)
2987 if (obj_aout_external_syms (abfd
) != (struct external_nlist
*) NULL
)
2990 bfd_free_window (&obj_aout_sym_window (abfd
));
2992 free ((PTR
) obj_aout_external_syms (abfd
));
2994 obj_aout_external_syms (abfd
) = (struct external_nlist
*) NULL
;
2996 if (obj_aout_external_strings (abfd
) != (char *) NULL
)
2999 bfd_free_window (&obj_aout_string_window (abfd
));
3001 free ((PTR
) obj_aout_external_strings (abfd
));
3003 obj_aout_external_strings (abfd
) = (char *) NULL
;
3008 /* Look through the internal symbols to see if this object file should
3009 be included in the link. We should include this object file if it
3010 defines any symbols which are currently undefined. If this object
3011 file defines a common symbol, then we may adjust the size of the
3012 known symbol but we do not include the object file in the link
3013 (unless there is some other reason to include it). */
3016 aout_link_check_ar_symbols (abfd
, info
, pneeded
)
3018 struct bfd_link_info
*info
;
3021 register struct external_nlist
*p
;
3022 struct external_nlist
*pend
;
3027 /* Look through all the symbols. */
3028 p
= obj_aout_external_syms (abfd
);
3029 pend
= p
+ obj_aout_external_sym_count (abfd
);
3030 strings
= obj_aout_external_strings (abfd
);
3031 for (; p
< pend
; p
++)
3033 int type
= bfd_h_get_8 (abfd
, p
->e_type
);
3035 struct bfd_link_hash_entry
*h
;
3037 /* Ignore symbols that are not externally visible. This is an
3038 optimization only, as we check the type more thoroughly
3040 if (((type
& N_EXT
) == 0
3041 || (type
& N_STAB
) != 0
3048 if (type
== N_WARNING
3054 name
= strings
+ GET_WORD (abfd
, p
->e_strx
);
3055 h
= bfd_link_hash_lookup (info
->hash
, name
, false, false, true);
3057 /* We are only interested in symbols that are currently
3058 undefined or common. */
3059 if (h
== (struct bfd_link_hash_entry
*) NULL
3060 || (h
->type
!= bfd_link_hash_undefined
3061 && h
->type
!= bfd_link_hash_common
))
3063 if (type
== (N_INDR
| N_EXT
))
3068 if (type
== (N_TEXT
| N_EXT
)
3069 || type
== (N_DATA
| N_EXT
)
3070 || type
== (N_BSS
| N_EXT
)
3071 || type
== (N_ABS
| N_EXT
)
3072 || type
== (N_INDR
| N_EXT
))
3074 /* This object file defines this symbol. We must link it
3075 in. This is true regardless of whether the current
3076 definition of the symbol is undefined or common. If the
3077 current definition is common, we have a case in which we
3078 have already seen an object file including
3080 and this object file from the archive includes
3082 In such a case we must include this object file.
3084 FIXME: The SunOS 4.1.3 linker will pull in the archive
3085 element if the symbol is defined in the .data section,
3086 but not if it is defined in the .text section. That
3087 seems a bit crazy to me, and I haven't implemented it.
3088 However, it might be correct. */
3089 if (! (*info
->callbacks
->add_archive_element
) (info
, abfd
, name
))
3095 if (type
== (N_UNDF
| N_EXT
))
3099 value
= GET_WORD (abfd
, p
->e_value
);
3102 /* This symbol is common in the object from the archive
3104 if (h
->type
== bfd_link_hash_undefined
)
3109 symbfd
= h
->u
.undef
.abfd
;
3110 if (symbfd
== (bfd
*) NULL
)
3112 /* This symbol was created as undefined from
3113 outside BFD. We assume that we should link
3114 in the object file. This is done for the -u
3115 option in the linker. */
3116 if (! (*info
->callbacks
->add_archive_element
) (info
,
3123 /* Turn the current link symbol into a common
3124 symbol. It is already on the undefs list. */
3125 h
->type
= bfd_link_hash_common
;
3126 h
->u
.c
.p
= ((struct bfd_link_hash_common_entry
*)
3127 bfd_hash_allocate (&info
->hash
->table
,
3128 sizeof (struct bfd_link_hash_common_entry
)));
3129 if (h
->u
.c
.p
== NULL
)
3132 h
->u
.c
.size
= value
;
3134 /* FIXME: This isn't quite right. The maximum
3135 alignment of a common symbol should be set by the
3136 architecture of the output file, not of the input
3138 power
= bfd_log2 (value
);
3139 if (power
> bfd_get_arch_info (abfd
)->section_align_power
)
3140 power
= bfd_get_arch_info (abfd
)->section_align_power
;
3141 h
->u
.c
.p
->alignment_power
= power
;
3143 h
->u
.c
.p
->section
= bfd_make_section_old_way (symbfd
,
3148 /* Adjust the size of the common symbol if
3150 if (value
> h
->u
.c
.size
)
3151 h
->u
.c
.size
= value
;
3161 /* This symbol is weak but defined. We must pull it in if
3162 the current link symbol is undefined, but we don't want
3163 it if the current link symbol is common. */
3164 if (h
->type
== bfd_link_hash_undefined
)
3166 if (! (*info
->callbacks
->add_archive_element
) (info
, abfd
, name
))
3174 /* We do not need this object file. */
3178 /* Add all symbols from an object file to the hash table. */
3181 aout_link_add_symbols (abfd
, info
)
3183 struct bfd_link_info
*info
;
3185 boolean (*add_one_symbol
) PARAMS ((struct bfd_link_info
*, bfd
*,
3186 const char *, flagword
, asection
*,
3187 bfd_vma
, const char *, boolean
,
3189 struct bfd_link_hash_entry
**));
3190 struct external_nlist
*syms
;
3191 bfd_size_type sym_count
;
3194 struct aout_link_hash_entry
**sym_hash
;
3195 register struct external_nlist
*p
;
3196 struct external_nlist
*pend
;
3198 syms
= obj_aout_external_syms (abfd
);
3199 sym_count
= obj_aout_external_sym_count (abfd
);
3200 strings
= obj_aout_external_strings (abfd
);
3201 if (info
->keep_memory
)
3206 if ((abfd
->flags
& DYNAMIC
) != 0
3207 && aout_backend_info (abfd
)->add_dynamic_symbols
!= NULL
)
3209 if (! ((*aout_backend_info (abfd
)->add_dynamic_symbols
)
3210 (abfd
, info
, &syms
, &sym_count
, &strings
)))
3214 /* We keep a list of the linker hash table entries that correspond
3215 to particular symbols. We could just look them up in the hash
3216 table, but keeping the list is more efficient. Perhaps this
3217 should be conditional on info->keep_memory. */
3218 sym_hash
= ((struct aout_link_hash_entry
**)
3221 * sizeof (struct aout_link_hash_entry
*))));
3222 if (sym_hash
== NULL
&& sym_count
!= 0)
3224 bfd_set_error (bfd_error_no_memory
);
3227 obj_aout_sym_hashes (abfd
) = sym_hash
;
3229 add_one_symbol
= aout_backend_info (abfd
)->add_one_symbol
;
3230 if (add_one_symbol
== NULL
)
3231 add_one_symbol
= _bfd_generic_link_add_one_symbol
;
3234 pend
= p
+ sym_count
;
3235 for (; p
< pend
; p
++, sym_hash
++)
3246 type
= bfd_h_get_8 (abfd
, p
->e_type
);
3248 /* Ignore debugging symbols. */
3249 if ((type
& N_STAB
) != 0)
3252 name
= strings
+ GET_WORD (abfd
, p
->e_strx
);
3253 value
= GET_WORD (abfd
, p
->e_value
);
3270 /* Ignore symbols that are not externally visible. */
3273 /* Ignore local indirect symbol. */
3278 case N_UNDF
| N_EXT
:
3281 section
= bfd_und_section_ptr
;
3285 section
= bfd_com_section_ptr
;
3288 section
= bfd_abs_section_ptr
;
3290 case N_TEXT
| N_EXT
:
3291 section
= obj_textsec (abfd
);
3292 value
-= bfd_get_section_vma (abfd
, section
);
3294 case N_DATA
| N_EXT
:
3295 case N_SETV
| N_EXT
:
3296 /* Treat N_SETV symbols as N_DATA symbol; see comment in
3297 translate_from_native_sym_flags. */
3298 section
= obj_datasec (abfd
);
3299 value
-= bfd_get_section_vma (abfd
, section
);
3302 section
= obj_bsssec (abfd
);
3303 value
-= bfd_get_section_vma (abfd
, section
);
3305 case N_INDR
| N_EXT
:
3306 /* An indirect symbol. The next symbol is the symbol
3307 which this one really is. */
3308 BFD_ASSERT (p
+ 1 < pend
);
3310 string
= strings
+ GET_WORD (abfd
, p
->e_strx
);
3311 section
= bfd_ind_section_ptr
;
3312 flags
|= BSF_INDIRECT
;
3314 case N_COMM
| N_EXT
:
3315 section
= bfd_com_section_ptr
;
3317 case N_SETA
: case N_SETA
| N_EXT
:
3318 section
= bfd_abs_section_ptr
;
3319 flags
|= BSF_CONSTRUCTOR
;
3321 case N_SETT
: case N_SETT
| N_EXT
:
3322 section
= obj_textsec (abfd
);
3323 flags
|= BSF_CONSTRUCTOR
;
3324 value
-= bfd_get_section_vma (abfd
, section
);
3326 case N_SETD
: case N_SETD
| N_EXT
:
3327 section
= obj_datasec (abfd
);
3328 flags
|= BSF_CONSTRUCTOR
;
3329 value
-= bfd_get_section_vma (abfd
, section
);
3331 case N_SETB
: case N_SETB
| N_EXT
:
3332 section
= obj_bsssec (abfd
);
3333 flags
|= BSF_CONSTRUCTOR
;
3334 value
-= bfd_get_section_vma (abfd
, section
);
3337 /* A warning symbol. The next symbol is the one to warn
3339 BFD_ASSERT (p
+ 1 < pend
);
3342 name
= strings
+ GET_WORD (abfd
, p
->e_strx
);
3343 section
= bfd_und_section_ptr
;
3344 flags
|= BSF_WARNING
;
3347 section
= bfd_und_section_ptr
;
3351 section
= bfd_abs_section_ptr
;
3355 section
= obj_textsec (abfd
);
3356 value
-= bfd_get_section_vma (abfd
, section
);
3360 section
= obj_datasec (abfd
);
3361 value
-= bfd_get_section_vma (abfd
, section
);
3365 section
= obj_bsssec (abfd
);
3366 value
-= bfd_get_section_vma (abfd
, section
);
3371 if (! ((*add_one_symbol
)
3372 (info
, abfd
, name
, flags
, section
, value
, string
, copy
, false,
3373 (struct bfd_link_hash_entry
**) sym_hash
)))
3376 /* Restrict the maximum alignment of a common symbol based on
3377 the architecture, since a.out has no way to represent
3378 alignment requirements of a section in a .o file. FIXME:
3379 This isn't quite right: it should use the architecture of the
3380 output file, not the input files. */
3381 if ((*sym_hash
)->root
.type
== bfd_link_hash_common
3382 && ((*sym_hash
)->root
.u
.c
.p
->alignment_power
>
3383 bfd_get_arch_info (abfd
)->section_align_power
))
3384 (*sym_hash
)->root
.u
.c
.p
->alignment_power
=
3385 bfd_get_arch_info (abfd
)->section_align_power
;
3387 /* If this is a set symbol, and we are not building sets, then
3388 it is possible for the hash entry to not have been set. In
3389 such a case, treat the symbol as not globally defined. */
3390 if ((*sym_hash
)->root
.type
== bfd_link_hash_new
)
3392 BFD_ASSERT ((flags
& BSF_CONSTRUCTOR
) != 0);
3396 if (type
== (N_INDR
| N_EXT
) || type
== N_WARNING
)
3403 /* During the final link step we need to pass around a bunch of
3404 information, so we do it in an instance of this structure. */
3406 struct aout_final_link_info
3408 /* General link information. */
3409 struct bfd_link_info
*info
;
3412 /* Reloc file positions. */
3413 file_ptr treloff
, dreloff
;
3414 /* File position of symbols. */
3417 struct bfd_strtab_hash
*strtab
;
3418 /* A buffer large enough to hold the contents of any section. */
3420 /* A buffer large enough to hold the relocs of any section. */
3422 /* A buffer large enough to hold the symbol map of any input BFD. */
3424 /* A buffer large enough to hold output symbols of any input BFD. */
3425 struct external_nlist
*output_syms
;
3428 static boolean aout_link_input_bfd
3429 PARAMS ((struct aout_final_link_info
*, bfd
*input_bfd
));
3430 static boolean aout_link_write_symbols
3431 PARAMS ((struct aout_final_link_info
*, bfd
*input_bfd
));
3432 static boolean aout_link_write_other_symbol
3433 PARAMS ((struct aout_link_hash_entry
*, PTR
));
3434 static boolean aout_link_input_section
3435 PARAMS ((struct aout_final_link_info
*, bfd
*input_bfd
,
3436 asection
*input_section
, file_ptr
*reloff_ptr
,
3437 bfd_size_type rel_size
));
3438 static boolean aout_link_input_section_std
3439 PARAMS ((struct aout_final_link_info
*, bfd
*input_bfd
,
3440 asection
*input_section
, struct reloc_std_external
*,
3441 bfd_size_type rel_size
, bfd_byte
*contents
));
3442 static boolean aout_link_input_section_ext
3443 PARAMS ((struct aout_final_link_info
*, bfd
*input_bfd
,
3444 asection
*input_section
, struct reloc_ext_external
*,
3445 bfd_size_type rel_size
, bfd_byte
*contents
));
3446 static INLINE asection
*aout_reloc_index_to_section
3447 PARAMS ((bfd
*, int));
3448 static boolean aout_link_reloc_link_order
3449 PARAMS ((struct aout_final_link_info
*, asection
*,
3450 struct bfd_link_order
*));
3452 /* Do the final link step. This is called on the output BFD. The
3453 INFO structure should point to a list of BFDs linked through the
3454 link_next field which can be used to find each BFD which takes part
3455 in the output. Also, each section in ABFD should point to a list
3456 of bfd_link_order structures which list all the input sections for
3457 the output section. */
3460 NAME(aout
,final_link
) (abfd
, info
, callback
)
3462 struct bfd_link_info
*info
;
3463 void (*callback
) PARAMS ((bfd
*, file_ptr
*, file_ptr
*, file_ptr
*));
3465 struct aout_final_link_info aout_info
;
3467 bfd_size_type trsize
, drsize
;
3468 size_t max_contents_size
;
3469 size_t max_relocs_size
;
3470 size_t max_sym_count
;
3471 bfd_size_type text_size
;
3473 register struct bfd_link_order
*p
;
3475 boolean have_link_order_relocs
;
3478 abfd
->flags
|= DYNAMIC
;
3480 aout_info
.info
= info
;
3481 aout_info
.output_bfd
= abfd
;
3482 aout_info
.contents
= NULL
;
3483 aout_info
.relocs
= NULL
;
3485 /* Figure out the largest section size. Also, if generating
3486 relocateable output, count the relocs. */
3489 max_contents_size
= 0;
3490 max_relocs_size
= 0;
3492 for (sub
= info
->input_bfds
; sub
!= NULL
; sub
= sub
->link_next
)
3496 if (info
->relocateable
)
3498 if (bfd_get_flavour (sub
) == bfd_target_aout_flavour
)
3500 trsize
+= exec_hdr (sub
)->a_trsize
;
3501 drsize
+= exec_hdr (sub
)->a_drsize
;
3505 /* FIXME: We need to identify the .text and .data sections
3506 and call get_reloc_upper_bound and canonicalize_reloc to
3507 work out the number of relocs needed, and then multiply
3508 by the reloc size. */
3513 if (bfd_get_flavour (sub
) == bfd_target_aout_flavour
)
3515 sz
= bfd_section_size (sub
, obj_textsec (sub
));
3516 if (sz
> max_contents_size
)
3517 max_contents_size
= sz
;
3518 sz
= bfd_section_size (sub
, obj_datasec (sub
));
3519 if (sz
> max_contents_size
)
3520 max_contents_size
= sz
;
3522 sz
= exec_hdr (sub
)->a_trsize
;
3523 if (sz
> max_relocs_size
)
3524 max_relocs_size
= sz
;
3525 sz
= exec_hdr (sub
)->a_drsize
;
3526 if (sz
> max_relocs_size
)
3527 max_relocs_size
= sz
;
3529 sz
= obj_aout_external_sym_count (sub
);
3530 if (sz
> max_sym_count
)
3535 if (info
->relocateable
)
3537 if (obj_textsec (abfd
) != (asection
*) NULL
)
3538 trsize
+= (_bfd_count_link_order_relocs (obj_textsec (abfd
)
3540 * obj_reloc_entry_size (abfd
));
3541 if (obj_datasec (abfd
) != (asection
*) NULL
)
3542 drsize
+= (_bfd_count_link_order_relocs (obj_datasec (abfd
)
3544 * obj_reloc_entry_size (abfd
));
3547 exec_hdr (abfd
)->a_trsize
= trsize
;
3548 exec_hdr (abfd
)->a_drsize
= drsize
;
3550 exec_hdr (abfd
)->a_entry
= bfd_get_start_address (abfd
);
3552 /* Adjust the section sizes and vmas according to the magic number.
3553 This sets a_text, a_data and a_bss in the exec_hdr and sets the
3554 filepos for each section. */
3555 if (! NAME(aout
,adjust_sizes_and_vmas
) (abfd
, &text_size
, &text_end
))
3558 /* The relocation and symbol file positions differ among a.out
3559 targets. We are passed a callback routine from the backend
3560 specific code to handle this.
3561 FIXME: At this point we do not know how much space the symbol
3562 table will require. This will not work for any (nonstandard)
3563 a.out target that needs to know the symbol table size before it
3564 can compute the relocation file positions. This may or may not
3565 be the case for the hp300hpux target, for example. */
3566 (*callback
) (abfd
, &aout_info
.treloff
, &aout_info
.dreloff
,
3568 obj_textsec (abfd
)->rel_filepos
= aout_info
.treloff
;
3569 obj_datasec (abfd
)->rel_filepos
= aout_info
.dreloff
;
3570 obj_sym_filepos (abfd
) = aout_info
.symoff
;
3572 /* We keep a count of the symbols as we output them. */
3573 obj_aout_external_sym_count (abfd
) = 0;
3575 /* We accumulate the string table as we write out the symbols. */
3576 aout_info
.strtab
= _bfd_stringtab_init ();
3577 if (aout_info
.strtab
== NULL
)
3580 /* Allocate buffers to hold section contents and relocs. */
3581 aout_info
.contents
= (bfd_byte
*) malloc (max_contents_size
);
3582 aout_info
.relocs
= (PTR
) malloc (max_relocs_size
);
3583 aout_info
.symbol_map
= (int *) malloc (max_sym_count
* sizeof (int *));
3584 aout_info
.output_syms
= ((struct external_nlist
*)
3585 malloc ((max_sym_count
+ 1)
3586 * sizeof (struct external_nlist
)));
3587 if ((aout_info
.contents
== NULL
&& max_contents_size
!= 0)
3588 || (aout_info
.relocs
== NULL
&& max_relocs_size
!= 0)
3589 || (aout_info
.symbol_map
== NULL
&& max_sym_count
!= 0)
3590 || aout_info
.output_syms
== NULL
)
3592 bfd_set_error (bfd_error_no_memory
);
3596 /* If we have a symbol named __DYNAMIC, force it out now. This is
3597 required by SunOS. Doing this here rather than in sunos.c is a
3598 hack, but it's easier than exporting everything which would be
3601 struct aout_link_hash_entry
*h
;
3603 h
= aout_link_hash_lookup (aout_hash_table (info
), "__DYNAMIC",
3604 false, false, false);
3606 aout_link_write_other_symbol (h
, &aout_info
);
3609 /* The most time efficient way to do the link would be to read all
3610 the input object files into memory and then sort out the
3611 information into the output file. Unfortunately, that will
3612 probably use too much memory. Another method would be to step
3613 through everything that composes the text section and write it
3614 out, and then everything that composes the data section and write
3615 it out, and then write out the relocs, and then write out the
3616 symbols. Unfortunately, that requires reading stuff from each
3617 input file several times, and we will not be able to keep all the
3618 input files open simultaneously, and reopening them will be slow.
3620 What we do is basically process one input file at a time. We do
3621 everything we need to do with an input file once--copy over the
3622 section contents, handle the relocation information, and write
3623 out the symbols--and then we throw away the information we read
3624 from it. This approach requires a lot of lseeks of the output
3625 file, which is unfortunate but still faster than reopening a lot
3628 We use the output_has_begun field of the input BFDs to see
3629 whether we have already handled it. */
3630 for (sub
= info
->input_bfds
; sub
!= (bfd
*) NULL
; sub
= sub
->link_next
)
3631 sub
->output_has_begun
= false;
3633 have_link_order_relocs
= false;
3634 for (o
= abfd
->sections
; o
!= (asection
*) NULL
; o
= o
->next
)
3636 for (p
= o
->link_order_head
;
3637 p
!= (struct bfd_link_order
*) NULL
;
3640 if (p
->type
== bfd_indirect_link_order
3641 && (bfd_get_flavour (p
->u
.indirect
.section
->owner
)
3642 == bfd_target_aout_flavour
))
3646 input_bfd
= p
->u
.indirect
.section
->owner
;
3647 if (! input_bfd
->output_has_begun
)
3649 if (! aout_link_input_bfd (&aout_info
, input_bfd
))
3651 input_bfd
->output_has_begun
= true;
3654 else if (p
->type
== bfd_section_reloc_link_order
3655 || p
->type
== bfd_symbol_reloc_link_order
)
3657 /* These are handled below. */
3658 have_link_order_relocs
= true;
3662 if (! _bfd_default_link_order (abfd
, info
, o
, p
))
3668 /* Write out any symbols that we have not already written out. */
3669 aout_link_hash_traverse (aout_hash_table (info
),
3670 aout_link_write_other_symbol
,
3673 /* Now handle any relocs we were asked to create by the linker.
3674 These did not come from any input file. We must do these after
3675 we have written out all the symbols, so that we know the symbol
3677 if (have_link_order_relocs
)
3679 for (o
= abfd
->sections
; o
!= (asection
*) NULL
; o
= o
->next
)
3681 for (p
= o
->link_order_head
;
3682 p
!= (struct bfd_link_order
*) NULL
;
3685 if (p
->type
== bfd_section_reloc_link_order
3686 || p
->type
== bfd_symbol_reloc_link_order
)
3688 if (! aout_link_reloc_link_order (&aout_info
, o
, p
))
3695 if (aout_info
.contents
!= NULL
)
3697 free (aout_info
.contents
);
3698 aout_info
.contents
= NULL
;
3700 if (aout_info
.relocs
!= NULL
)
3702 free (aout_info
.relocs
);
3703 aout_info
.relocs
= NULL
;
3705 if (aout_info
.symbol_map
!= NULL
)
3707 free (aout_info
.symbol_map
);
3708 aout_info
.symbol_map
= NULL
;
3710 if (aout_info
.output_syms
!= NULL
)
3712 free (aout_info
.output_syms
);
3713 aout_info
.output_syms
= NULL
;
3716 /* Finish up any dynamic linking we may be doing. */
3717 if (aout_backend_info (abfd
)->finish_dynamic_link
!= NULL
)
3719 if (! (*aout_backend_info (abfd
)->finish_dynamic_link
) (abfd
, info
))
3723 /* Update the header information. */
3724 abfd
->symcount
= obj_aout_external_sym_count (abfd
);
3725 exec_hdr (abfd
)->a_syms
= abfd
->symcount
* EXTERNAL_NLIST_SIZE
;
3726 obj_str_filepos (abfd
) = obj_sym_filepos (abfd
) + exec_hdr (abfd
)->a_syms
;
3727 obj_textsec (abfd
)->reloc_count
=
3728 exec_hdr (abfd
)->a_trsize
/ obj_reloc_entry_size (abfd
);
3729 obj_datasec (abfd
)->reloc_count
=
3730 exec_hdr (abfd
)->a_drsize
/ obj_reloc_entry_size (abfd
);
3732 /* Write out the string table. */
3733 if (bfd_seek (abfd
, obj_str_filepos (abfd
), SEEK_SET
) != 0)
3735 return emit_stringtab (abfd
, aout_info
.strtab
);
3738 if (aout_info
.contents
!= NULL
)
3739 free (aout_info
.contents
);
3740 if (aout_info
.relocs
!= NULL
)
3741 free (aout_info
.relocs
);
3742 if (aout_info
.symbol_map
!= NULL
)
3743 free (aout_info
.symbol_map
);
3744 if (aout_info
.output_syms
!= NULL
)
3745 free (aout_info
.output_syms
);
3749 /* Link an a.out input BFD into the output file. */
3752 aout_link_input_bfd (finfo
, input_bfd
)
3753 struct aout_final_link_info
*finfo
;
3756 bfd_size_type sym_count
;
3758 BFD_ASSERT (bfd_get_format (input_bfd
) == bfd_object
);
3760 /* If this is a dynamic object, it may need special handling. */
3761 if ((input_bfd
->flags
& DYNAMIC
) != 0
3762 && aout_backend_info (input_bfd
)->link_dynamic_object
!= NULL
)
3764 return ((*aout_backend_info (input_bfd
)->link_dynamic_object
)
3765 (finfo
->info
, input_bfd
));
3768 /* Get the symbols. We probably have them already, unless
3769 finfo->info->keep_memory is false. */
3770 if (! aout_get_external_symbols (input_bfd
))
3773 sym_count
= obj_aout_external_sym_count (input_bfd
);
3775 /* Write out the symbols and get a map of the new indices. The map
3776 is placed into finfo->symbol_map. */
3777 if (! aout_link_write_symbols (finfo
, input_bfd
))
3780 /* Relocate and write out the sections. These functions use the
3781 symbol map created by aout_link_write_symbols. */
3782 if (! aout_link_input_section (finfo
, input_bfd
,
3783 obj_textsec (input_bfd
),
3785 exec_hdr (input_bfd
)->a_trsize
)
3786 || ! aout_link_input_section (finfo
, input_bfd
,
3787 obj_datasec (input_bfd
),
3789 exec_hdr (input_bfd
)->a_drsize
))
3792 /* If we are not keeping memory, we don't need the symbols any
3793 longer. We still need them if we are keeping memory, because the
3794 strings in the hash table point into them. */
3795 if (! finfo
->info
->keep_memory
)
3797 if (! aout_link_free_symbols (input_bfd
))
3804 /* Adjust and write out the symbols for an a.out file. Set the new
3805 symbol indices into a symbol_map. */
3808 aout_link_write_symbols (finfo
, input_bfd
)
3809 struct aout_final_link_info
*finfo
;
3813 bfd_size_type sym_count
;
3815 enum bfd_link_strip strip
;
3816 enum bfd_link_discard discard
;
3817 struct external_nlist
*outsym
;
3818 bfd_size_type strtab_index
;
3819 register struct external_nlist
*sym
;
3820 struct external_nlist
*sym_end
;
3821 struct aout_link_hash_entry
**sym_hash
;
3826 output_bfd
= finfo
->output_bfd
;
3827 sym_count
= obj_aout_external_sym_count (input_bfd
);
3828 strings
= obj_aout_external_strings (input_bfd
);
3829 strip
= finfo
->info
->strip
;
3830 discard
= finfo
->info
->discard
;
3831 outsym
= finfo
->output_syms
;
3833 /* First write out a symbol for this object file, unless we are
3834 discarding such symbols. */
3835 if (strip
!= strip_all
3836 && (strip
!= strip_some
3837 || bfd_hash_lookup (finfo
->info
->keep_hash
, input_bfd
->filename
,
3838 false, false) != NULL
)
3839 && discard
!= discard_all
)
3841 bfd_h_put_8 (output_bfd
, N_TEXT
, outsym
->e_type
);
3842 bfd_h_put_8 (output_bfd
, 0, outsym
->e_other
);
3843 bfd_h_put_16 (output_bfd
, (bfd_vma
) 0, outsym
->e_desc
);
3844 strtab_index
= add_to_stringtab (output_bfd
, finfo
->strtab
,
3845 input_bfd
->filename
, false);
3846 if (strtab_index
== (bfd_size_type
) -1)
3848 PUT_WORD (output_bfd
, strtab_index
, outsym
->e_strx
);
3849 PUT_WORD (output_bfd
,
3850 (bfd_get_section_vma (output_bfd
,
3851 obj_textsec (input_bfd
)->output_section
)
3852 + obj_textsec (input_bfd
)->output_offset
),
3854 ++obj_aout_external_sym_count (output_bfd
);
3860 sym
= obj_aout_external_syms (input_bfd
);
3861 sym_end
= sym
+ sym_count
;
3862 sym_hash
= obj_aout_sym_hashes (input_bfd
);
3863 symbol_map
= finfo
->symbol_map
;
3864 for (; sym
< sym_end
; sym
++, sym_hash
++, symbol_map
++)
3868 struct aout_link_hash_entry
*h
;
3876 type
= bfd_h_get_8 (input_bfd
, sym
->e_type
);
3877 name
= strings
+ GET_WORD (input_bfd
, sym
->e_strx
);
3883 /* Pass this symbol through. It is the target of an
3884 indirect or warning symbol. */
3885 val
= GET_WORD (input_bfd
, sym
->e_value
);
3890 /* Skip this symbol, which is the target of an indirect
3891 symbol that we have changed to no longer be an indirect
3898 struct aout_link_hash_entry
*hresolve
;
3900 /* We have saved the hash table entry for this symbol, if
3901 there is one. Note that we could just look it up again
3902 in the hash table, provided we first check that it is an
3906 /* If this is an indirect or warning symbol, then change
3907 hresolve to the base symbol. We also change *sym_hash so
3908 that the relocation routines relocate against the real
3911 if (h
!= (struct aout_link_hash_entry
*) NULL
3912 && (h
->root
.type
== bfd_link_hash_indirect
3913 || h
->root
.type
== bfd_link_hash_warning
))
3915 hresolve
= (struct aout_link_hash_entry
*) h
->root
.u
.i
.link
;
3916 while (hresolve
->root
.type
== bfd_link_hash_indirect
3917 || hresolve
->root
.type
== bfd_link_hash_warning
)
3918 hresolve
= ((struct aout_link_hash_entry
*)
3919 hresolve
->root
.u
.i
.link
);
3920 *sym_hash
= hresolve
;
3923 /* If the symbol has already been written out, skip it. */
3924 if (h
!= (struct aout_link_hash_entry
*) NULL
3925 && h
->root
.type
!= bfd_link_hash_warning
3928 if ((type
& N_TYPE
) == N_INDR
3929 || type
== N_WARNING
)
3931 *symbol_map
= h
->indx
;
3935 /* See if we are stripping this symbol. */
3941 case strip_debugger
:
3942 if ((type
& N_STAB
) != 0)
3946 if (bfd_hash_lookup (finfo
->info
->keep_hash
, name
, false, false)
3956 if (h
!= (struct aout_link_hash_entry
*) NULL
)
3961 /* Get the value of the symbol. */
3962 if ((type
& N_TYPE
) == N_TEXT
3964 symsec
= obj_textsec (input_bfd
);
3965 else if ((type
& N_TYPE
) == N_DATA
3967 symsec
= obj_datasec (input_bfd
);
3968 else if ((type
& N_TYPE
) == N_BSS
3970 symsec
= obj_bsssec (input_bfd
);
3971 else if ((type
& N_TYPE
) == N_ABS
3973 symsec
= bfd_abs_section_ptr
;
3974 else if (((type
& N_TYPE
) == N_INDR
3975 && (hresolve
== (struct aout_link_hash_entry
*) NULL
3976 || (hresolve
->root
.type
!= bfd_link_hash_defined
3977 && hresolve
->root
.type
!= bfd_link_hash_defweak
3978 && hresolve
->root
.type
!= bfd_link_hash_common
)))
3979 || type
== N_WARNING
)
3981 /* Pass the next symbol through unchanged. The
3982 condition above for indirect symbols is so that if
3983 the indirect symbol was defined, we output it with
3984 the correct definition so the debugger will
3987 val
= GET_WORD (input_bfd
, sym
->e_value
);
3990 else if ((type
& N_STAB
) != 0)
3992 val
= GET_WORD (input_bfd
, sym
->e_value
);
3997 /* If we get here with an indirect symbol, it means that
3998 we are outputting it with a real definition. In such
3999 a case we do not want to output the next symbol,
4000 which is the target of the indirection. */
4001 if ((type
& N_TYPE
) == N_INDR
)
4006 /* We need to get the value from the hash table. We use
4007 hresolve so that if we have defined an indirect
4008 symbol we output the final definition. */
4009 if (h
== (struct aout_link_hash_entry
*) NULL
)
4011 switch (type
& N_TYPE
)
4014 symsec
= obj_textsec (input_bfd
);
4017 symsec
= obj_datasec (input_bfd
);
4020 symsec
= obj_bsssec (input_bfd
);
4023 symsec
= bfd_abs_section_ptr
;
4030 else if (hresolve
->root
.type
== bfd_link_hash_defined
4031 || hresolve
->root
.type
== bfd_link_hash_defweak
)
4033 asection
*input_section
;
4034 asection
*output_section
;
4036 /* This case usually means a common symbol which was
4037 turned into a defined symbol. */
4038 input_section
= hresolve
->root
.u
.def
.section
;
4039 output_section
= input_section
->output_section
;
4040 BFD_ASSERT (bfd_is_abs_section (output_section
)
4041 || output_section
->owner
== output_bfd
);
4042 val
= (hresolve
->root
.u
.def
.value
4043 + bfd_get_section_vma (output_bfd
, output_section
)
4044 + input_section
->output_offset
);
4046 /* Get the correct type based on the section. If
4047 this is a constructed set, force it to be
4048 globally visible. */
4057 if (output_section
== obj_textsec (output_bfd
))
4058 type
|= (hresolve
->root
.type
== bfd_link_hash_defined
4061 else if (output_section
== obj_datasec (output_bfd
))
4062 type
|= (hresolve
->root
.type
== bfd_link_hash_defined
4065 else if (output_section
== obj_bsssec (output_bfd
))
4066 type
|= (hresolve
->root
.type
== bfd_link_hash_defined
4070 type
|= (hresolve
->root
.type
== bfd_link_hash_defined
4074 else if (hresolve
->root
.type
== bfd_link_hash_common
)
4075 val
= hresolve
->root
.u
.c
.size
;
4076 else if (hresolve
->root
.type
== bfd_link_hash_undefweak
)
4084 if (symsec
!= (asection
*) NULL
)
4085 val
= (symsec
->output_section
->vma
4086 + symsec
->output_offset
4087 + (GET_WORD (input_bfd
, sym
->e_value
)
4090 /* If this is a global symbol set the written flag, and if
4091 it is a local symbol see if we should discard it. */
4092 if (h
!= (struct aout_link_hash_entry
*) NULL
)
4095 h
->indx
= obj_aout_external_sym_count (output_bfd
);
4097 else if ((type
& N_TYPE
) != N_SETT
4098 && (type
& N_TYPE
) != N_SETD
4099 && (type
& N_TYPE
) != N_SETB
4100 && (type
& N_TYPE
) != N_SETA
)
4107 if (*name
== *finfo
->info
->lprefix
4108 && (finfo
->info
->lprefix_len
== 1
4109 || strncmp (name
, finfo
->info
->lprefix
,
4110 finfo
->info
->lprefix_len
) == 0))
4125 /* Copy this symbol into the list of symbols we are going to
4127 bfd_h_put_8 (output_bfd
, type
, outsym
->e_type
);
4128 bfd_h_put_8 (output_bfd
, bfd_h_get_8 (input_bfd
, sym
->e_other
),
4130 bfd_h_put_16 (output_bfd
, bfd_h_get_16 (input_bfd
, sym
->e_desc
),
4133 if (! finfo
->info
->keep_memory
)
4135 /* name points into a string table which we are going to
4136 free. If there is a hash table entry, use that string.
4137 Otherwise, copy name into memory. */
4138 if (h
!= (struct aout_link_hash_entry
*) NULL
)
4139 name
= h
->root
.root
.string
;
4143 strtab_index
= add_to_stringtab (output_bfd
, finfo
->strtab
,
4145 if (strtab_index
== (bfd_size_type
) -1)
4147 PUT_WORD (output_bfd
, strtab_index
, outsym
->e_strx
);
4148 PUT_WORD (output_bfd
, val
, outsym
->e_value
);
4149 *symbol_map
= obj_aout_external_sym_count (output_bfd
);
4150 ++obj_aout_external_sym_count (output_bfd
);
4154 /* Write out the output symbols we have just constructed. */
4155 if (outsym
> finfo
->output_syms
)
4157 bfd_size_type outsym_count
;
4159 if (bfd_seek (output_bfd
, finfo
->symoff
, SEEK_SET
) != 0)
4161 outsym_count
= outsym
- finfo
->output_syms
;
4162 if (bfd_write ((PTR
) finfo
->output_syms
,
4163 (bfd_size_type
) EXTERNAL_NLIST_SIZE
,
4164 (bfd_size_type
) outsym_count
, output_bfd
)
4165 != outsym_count
* EXTERNAL_NLIST_SIZE
)
4167 finfo
->symoff
+= outsym_count
* EXTERNAL_NLIST_SIZE
;
4173 /* Write out a symbol that was not associated with an a.out input
4177 aout_link_write_other_symbol (h
, data
)
4178 struct aout_link_hash_entry
*h
;
4181 struct aout_final_link_info
*finfo
= (struct aout_final_link_info
*) data
;
4185 struct external_nlist outsym
;
4188 output_bfd
= finfo
->output_bfd
;
4190 if (aout_backend_info (output_bfd
)->write_dynamic_symbol
!= NULL
)
4192 if (! ((*aout_backend_info (output_bfd
)->write_dynamic_symbol
)
4193 (output_bfd
, finfo
->info
, h
)))
4195 /* FIXME: No way to handle errors. */
4205 /* An indx of -2 means the symbol must be written. */
4207 && (finfo
->info
->strip
== strip_all
4208 || (finfo
->info
->strip
== strip_some
4209 && bfd_hash_lookup (finfo
->info
->keep_hash
, h
->root
.root
.string
,
4210 false, false) == NULL
)))
4213 switch (h
->root
.type
)
4217 /* Avoid variable not initialized warnings. */
4219 case bfd_link_hash_new
:
4220 /* This can happen for set symbols when sets are not being
4223 case bfd_link_hash_undefined
:
4224 type
= N_UNDF
| N_EXT
;
4227 case bfd_link_hash_defined
:
4228 case bfd_link_hash_defweak
:
4232 sec
= h
->root
.u
.def
.section
->output_section
;
4233 BFD_ASSERT (bfd_is_abs_section (sec
)
4234 || sec
->owner
== output_bfd
);
4235 if (sec
== obj_textsec (output_bfd
))
4236 type
= h
->root
.type
== bfd_link_hash_defined
? N_TEXT
: N_WEAKT
;
4237 else if (sec
== obj_datasec (output_bfd
))
4238 type
= h
->root
.type
== bfd_link_hash_defined
? N_DATA
: N_WEAKD
;
4239 else if (sec
== obj_bsssec (output_bfd
))
4240 type
= h
->root
.type
== bfd_link_hash_defined
? N_BSS
: N_WEAKB
;
4242 type
= h
->root
.type
== bfd_link_hash_defined
? N_ABS
: N_WEAKA
;
4244 val
= (h
->root
.u
.def
.value
4246 + h
->root
.u
.def
.section
->output_offset
);
4249 case bfd_link_hash_common
:
4250 type
= N_UNDF
| N_EXT
;
4251 val
= h
->root
.u
.c
.size
;
4253 case bfd_link_hash_undefweak
:
4256 case bfd_link_hash_indirect
:
4257 case bfd_link_hash_warning
:
4258 /* FIXME: Ignore these for now. The circumstances under which
4259 they should be written out are not clear to me. */
4263 bfd_h_put_8 (output_bfd
, type
, outsym
.e_type
);
4264 bfd_h_put_8 (output_bfd
, 0, outsym
.e_other
);
4265 bfd_h_put_16 (output_bfd
, 0, outsym
.e_desc
);
4266 indx
= add_to_stringtab (output_bfd
, finfo
->strtab
, h
->root
.root
.string
,
4268 if (indx
== (bfd_size_type
) -1)
4270 /* FIXME: No way to handle errors. */
4273 PUT_WORD (output_bfd
, indx
, outsym
.e_strx
);
4274 PUT_WORD (output_bfd
, val
, outsym
.e_value
);
4276 if (bfd_seek (output_bfd
, finfo
->symoff
, SEEK_SET
) != 0
4277 || bfd_write ((PTR
) &outsym
, (bfd_size_type
) EXTERNAL_NLIST_SIZE
,
4278 (bfd_size_type
) 1, output_bfd
) != EXTERNAL_NLIST_SIZE
)
4280 /* FIXME: No way to handle errors. */
4284 finfo
->symoff
+= EXTERNAL_NLIST_SIZE
;
4285 h
->indx
= obj_aout_external_sym_count (output_bfd
);
4286 ++obj_aout_external_sym_count (output_bfd
);
4291 /* Link an a.out section into the output file. */
4294 aout_link_input_section (finfo
, input_bfd
, input_section
, reloff_ptr
,
4296 struct aout_final_link_info
*finfo
;
4298 asection
*input_section
;
4299 file_ptr
*reloff_ptr
;
4300 bfd_size_type rel_size
;
4302 bfd_size_type input_size
;
4305 /* Get the section contents. */
4306 input_size
= bfd_section_size (input_bfd
, input_section
);
4307 if (! bfd_get_section_contents (input_bfd
, input_section
,
4308 (PTR
) finfo
->contents
,
4309 (file_ptr
) 0, input_size
))
4312 /* Read in the relocs if we haven't already done it. */
4313 if (aout_section_data (input_section
) != NULL
4314 && aout_section_data (input_section
)->relocs
!= NULL
)
4315 relocs
= aout_section_data (input_section
)->relocs
;
4318 relocs
= finfo
->relocs
;
4321 if (bfd_seek (input_bfd
, input_section
->rel_filepos
, SEEK_SET
) != 0
4322 || bfd_read (relocs
, 1, rel_size
, input_bfd
) != rel_size
)
4327 /* Relocate the section contents. */
4328 if (obj_reloc_entry_size (input_bfd
) == RELOC_STD_SIZE
)
4330 if (! aout_link_input_section_std (finfo
, input_bfd
, input_section
,
4331 (struct reloc_std_external
*) relocs
,
4332 rel_size
, finfo
->contents
))
4337 if (! aout_link_input_section_ext (finfo
, input_bfd
, input_section
,
4338 (struct reloc_ext_external
*) relocs
,
4339 rel_size
, finfo
->contents
))
4343 /* Write out the section contents. */
4344 if (! bfd_set_section_contents (finfo
->output_bfd
,
4345 input_section
->output_section
,
4346 (PTR
) finfo
->contents
,
4347 input_section
->output_offset
,
4351 /* If we are producing relocateable output, the relocs were
4352 modified, and we now write them out. */
4353 if (finfo
->info
->relocateable
&& rel_size
> 0)
4355 if (bfd_seek (finfo
->output_bfd
, *reloff_ptr
, SEEK_SET
) != 0)
4357 if (bfd_write (relocs
, (bfd_size_type
) 1, rel_size
, finfo
->output_bfd
)
4360 *reloff_ptr
+= rel_size
;
4362 /* Assert that the relocs have not run into the symbols, and
4363 that if these are the text relocs they have not run into the
4365 BFD_ASSERT (*reloff_ptr
<= obj_sym_filepos (finfo
->output_bfd
)
4366 && (reloff_ptr
!= &finfo
->treloff
4368 <= obj_datasec (finfo
->output_bfd
)->rel_filepos
)));
4374 /* Get the section corresponding to a reloc index. */
4376 static INLINE asection
*
4377 aout_reloc_index_to_section (abfd
, indx
)
4381 switch (indx
& N_TYPE
)
4384 return obj_textsec (abfd
);
4386 return obj_datasec (abfd
);
4388 return obj_bsssec (abfd
);
4391 return bfd_abs_section_ptr
;
4397 /* Relocate an a.out section using standard a.out relocs. */
4400 aout_link_input_section_std (finfo
, input_bfd
, input_section
, relocs
,
4402 struct aout_final_link_info
*finfo
;
4404 asection
*input_section
;
4405 struct reloc_std_external
*relocs
;
4406 bfd_size_type rel_size
;
4409 boolean (*check_dynamic_reloc
) PARAMS ((struct bfd_link_info
*,
4411 struct aout_link_hash_entry
*,
4412 PTR
, bfd_byte
*, boolean
*,
4415 boolean relocateable
;
4416 struct external_nlist
*syms
;
4418 struct aout_link_hash_entry
**sym_hashes
;
4420 bfd_size_type reloc_count
;
4421 register struct reloc_std_external
*rel
;
4422 struct reloc_std_external
*rel_end
;
4424 output_bfd
= finfo
->output_bfd
;
4425 check_dynamic_reloc
= aout_backend_info (output_bfd
)->check_dynamic_reloc
;
4427 BFD_ASSERT (obj_reloc_entry_size (input_bfd
) == RELOC_STD_SIZE
);
4428 BFD_ASSERT (input_bfd
->xvec
->header_byteorder_big_p
4429 == output_bfd
->xvec
->header_byteorder_big_p
);
4431 relocateable
= finfo
->info
->relocateable
;
4432 syms
= obj_aout_external_syms (input_bfd
);
4433 strings
= obj_aout_external_strings (input_bfd
);
4434 sym_hashes
= obj_aout_sym_hashes (input_bfd
);
4435 symbol_map
= finfo
->symbol_map
;
4437 reloc_count
= rel_size
/ RELOC_STD_SIZE
;
4439 rel_end
= rel
+ reloc_count
;
4440 for (; rel
< rel_end
; rel
++)
4447 reloc_howto_type
*howto
;
4448 struct aout_link_hash_entry
*h
= NULL
;
4450 bfd_reloc_status_type r
;
4452 r_addr
= GET_SWORD (input_bfd
, rel
->r_address
);
4454 #ifdef MY_reloc_howto
4455 howto
= MY_reloc_howto(input_bfd
, rel
, r_index
, r_extern
, r_pcrel
);
4461 unsigned int howto_idx
;
4463 if (input_bfd
->xvec
->header_byteorder_big_p
)
4465 r_index
= ((rel
->r_index
[0] << 16)
4466 | (rel
->r_index
[1] << 8)
4468 r_extern
= (0 != (rel
->r_type
[0] & RELOC_STD_BITS_EXTERN_BIG
));
4469 r_pcrel
= (0 != (rel
->r_type
[0] & RELOC_STD_BITS_PCREL_BIG
));
4470 r_baserel
= (0 != (rel
->r_type
[0] & RELOC_STD_BITS_BASEREL_BIG
));
4471 r_jmptable
= (0 != (rel
->r_type
[0] & RELOC_STD_BITS_JMPTABLE_BIG
));
4472 r_relative
= (0 != (rel
->r_type
[0] & RELOC_STD_BITS_RELATIVE_BIG
));
4473 r_length
= ((rel
->r_type
[0] & RELOC_STD_BITS_LENGTH_BIG
)
4474 >> RELOC_STD_BITS_LENGTH_SH_BIG
);
4478 r_index
= ((rel
->r_index
[2] << 16)
4479 | (rel
->r_index
[1] << 8)
4481 r_extern
= (0 != (rel
->r_type
[0] & RELOC_STD_BITS_EXTERN_LITTLE
));
4482 r_pcrel
= (0 != (rel
->r_type
[0] & RELOC_STD_BITS_PCREL_LITTLE
));
4483 r_baserel
= (0 != (rel
->r_type
[0]
4484 & RELOC_STD_BITS_BASEREL_LITTLE
));
4485 r_jmptable
= (0 != (rel
->r_type
[0]
4486 & RELOC_STD_BITS_JMPTABLE_LITTLE
));
4487 r_relative
= (0 != (rel
->r_type
[0]
4488 & RELOC_STD_BITS_RELATIVE_LITTLE
));
4489 r_length
= ((rel
->r_type
[0] & RELOC_STD_BITS_LENGTH_LITTLE
)
4490 >> RELOC_STD_BITS_LENGTH_SH_LITTLE
);
4493 howto_idx
= (r_length
+ 4 * r_pcrel
+ 8 * r_baserel
4494 + 16 * r_jmptable
+ 32 * r_relative
);
4495 BFD_ASSERT (howto_idx
< TABLE_SIZE (howto_table_std
));
4496 howto
= howto_table_std
+ howto_idx
;
4502 /* We are generating a relocateable output file, and must
4503 modify the reloc accordingly. */
4506 /* If we know the symbol this relocation is against,
4507 convert it into a relocation against a section. This
4508 is what the native linker does. */
4509 h
= sym_hashes
[r_index
];
4510 if (h
!= (struct aout_link_hash_entry
*) NULL
4511 && (h
->root
.type
== bfd_link_hash_defined
4512 || h
->root
.type
== bfd_link_hash_defweak
))
4514 asection
*output_section
;
4516 /* Change the r_extern value. */
4517 if (output_bfd
->xvec
->header_byteorder_big_p
)
4518 rel
->r_type
[0] &=~ RELOC_STD_BITS_EXTERN_BIG
;
4520 rel
->r_type
[0] &=~ RELOC_STD_BITS_EXTERN_LITTLE
;
4522 /* Compute a new r_index. */
4523 output_section
= h
->root
.u
.def
.section
->output_section
;
4524 if (output_section
== obj_textsec (output_bfd
))
4526 else if (output_section
== obj_datasec (output_bfd
))
4528 else if (output_section
== obj_bsssec (output_bfd
))
4533 /* Add the symbol value and the section VMA to the
4534 addend stored in the contents. */
4535 relocation
= (h
->root
.u
.def
.value
4536 + output_section
->vma
4537 + h
->root
.u
.def
.section
->output_offset
);
4541 /* We must change r_index according to the symbol
4543 r_index
= symbol_map
[r_index
];
4549 /* We decided to strip this symbol, but it
4550 turns out that we can't. Note that we
4551 lose the other and desc information here.
4552 I don't think that will ever matter for a
4558 if (! aout_link_write_other_symbol (h
,
4568 name
= strings
+ GET_WORD (input_bfd
,
4569 syms
[r_index
].e_strx
);
4570 if (! ((*finfo
->info
->callbacks
->unattached_reloc
)
4571 (finfo
->info
, name
, input_bfd
, input_section
,
4581 /* Write out the new r_index value. */
4582 if (output_bfd
->xvec
->header_byteorder_big_p
)
4584 rel
->r_index
[0] = r_index
>> 16;
4585 rel
->r_index
[1] = r_index
>> 8;
4586 rel
->r_index
[2] = r_index
;
4590 rel
->r_index
[2] = r_index
>> 16;
4591 rel
->r_index
[1] = r_index
>> 8;
4592 rel
->r_index
[0] = r_index
;
4599 /* This is a relocation against a section. We must
4600 adjust by the amount that the section moved. */
4601 section
= aout_reloc_index_to_section (input_bfd
, r_index
);
4602 relocation
= (section
->output_section
->vma
4603 + section
->output_offset
4607 /* Change the address of the relocation. */
4608 PUT_WORD (output_bfd
,
4609 r_addr
+ input_section
->output_offset
,
4612 /* Adjust a PC relative relocation by removing the reference
4613 to the original address in the section and including the
4614 reference to the new address. */
4616 relocation
-= (input_section
->output_section
->vma
4617 + input_section
->output_offset
4618 - input_section
->vma
);
4620 #ifdef MY_relocatable_reloc
4621 MY_relocatable_reloc (howto
, output_bfd
, rel
, relocation
, r_addr
);
4624 if (relocation
== 0)
4627 r
= MY_relocate_contents (howto
,
4628 input_bfd
, relocation
,
4635 /* We are generating an executable, and must do a full
4640 h
= sym_hashes
[r_index
];
4642 if (h
!= (struct aout_link_hash_entry
*) NULL
4643 && (h
->root
.type
== bfd_link_hash_defined
4644 || h
->root
.type
== bfd_link_hash_defweak
))
4646 relocation
= (h
->root
.u
.def
.value
4647 + h
->root
.u
.def
.section
->output_section
->vma
4648 + h
->root
.u
.def
.section
->output_offset
);
4650 else if (h
!= (struct aout_link_hash_entry
*) NULL
4651 && h
->root
.type
== bfd_link_hash_undefweak
)
4663 section
= aout_reloc_index_to_section (input_bfd
, r_index
);
4664 relocation
= (section
->output_section
->vma
4665 + section
->output_offset
4668 relocation
+= input_section
->vma
;
4671 if (check_dynamic_reloc
!= NULL
)
4675 if (! ((*check_dynamic_reloc
)
4676 (finfo
->info
, input_bfd
, input_section
, h
,
4677 (PTR
) rel
, contents
, &skip
, &relocation
)))
4683 /* Now warn if a global symbol is undefined. We could not
4684 do this earlier, because check_dynamic_reloc might want
4685 to skip this reloc. */
4686 if (hundef
&& ! finfo
->info
->shared
&& ! r_baserel
)
4690 name
= strings
+ GET_WORD (input_bfd
, syms
[r_index
].e_strx
);
4691 if (! ((*finfo
->info
->callbacks
->undefined_symbol
)
4692 (finfo
->info
, name
, input_bfd
, input_section
, r_addr
)))
4696 r
= MY_final_link_relocate (howto
,
4697 input_bfd
, input_section
,
4698 contents
, r_addr
, relocation
,
4702 if (r
!= bfd_reloc_ok
)
4707 case bfd_reloc_outofrange
:
4709 case bfd_reloc_overflow
:
4714 name
= strings
+ GET_WORD (input_bfd
,
4715 syms
[r_index
].e_strx
);
4720 s
= aout_reloc_index_to_section (input_bfd
, r_index
);
4721 name
= bfd_section_name (input_bfd
, s
);
4723 if (! ((*finfo
->info
->callbacks
->reloc_overflow
)
4724 (finfo
->info
, name
, howto
->name
,
4725 (bfd_vma
) 0, input_bfd
, input_section
, r_addr
)))
4736 /* Relocate an a.out section using extended a.out relocs. */
4739 aout_link_input_section_ext (finfo
, input_bfd
, input_section
, relocs
,
4741 struct aout_final_link_info
*finfo
;
4743 asection
*input_section
;
4744 struct reloc_ext_external
*relocs
;
4745 bfd_size_type rel_size
;
4748 boolean (*check_dynamic_reloc
) PARAMS ((struct bfd_link_info
*,
4750 struct aout_link_hash_entry
*,
4751 PTR
, bfd_byte
*, boolean
*,
4754 boolean relocateable
;
4755 struct external_nlist
*syms
;
4757 struct aout_link_hash_entry
**sym_hashes
;
4759 bfd_size_type reloc_count
;
4760 register struct reloc_ext_external
*rel
;
4761 struct reloc_ext_external
*rel_end
;
4763 output_bfd
= finfo
->output_bfd
;
4764 check_dynamic_reloc
= aout_backend_info (output_bfd
)->check_dynamic_reloc
;
4766 BFD_ASSERT (obj_reloc_entry_size (input_bfd
) == RELOC_EXT_SIZE
);
4767 BFD_ASSERT (input_bfd
->xvec
->header_byteorder_big_p
4768 == output_bfd
->xvec
->header_byteorder_big_p
);
4770 relocateable
= finfo
->info
->relocateable
;
4771 syms
= obj_aout_external_syms (input_bfd
);
4772 strings
= obj_aout_external_strings (input_bfd
);
4773 sym_hashes
= obj_aout_sym_hashes (input_bfd
);
4774 symbol_map
= finfo
->symbol_map
;
4776 reloc_count
= rel_size
/ RELOC_EXT_SIZE
;
4778 rel_end
= rel
+ reloc_count
;
4779 for (; rel
< rel_end
; rel
++)
4784 unsigned int r_type
;
4786 struct aout_link_hash_entry
*h
= NULL
;
4787 asection
*r_section
= NULL
;
4790 r_addr
= GET_SWORD (input_bfd
, rel
->r_address
);
4792 if (input_bfd
->xvec
->header_byteorder_big_p
)
4794 r_index
= ((rel
->r_index
[0] << 16)
4795 | (rel
->r_index
[1] << 8)
4797 r_extern
= (0 != (rel
->r_type
[0] & RELOC_EXT_BITS_EXTERN_BIG
));
4798 r_type
= ((rel
->r_type
[0] & RELOC_EXT_BITS_TYPE_BIG
)
4799 >> RELOC_EXT_BITS_TYPE_SH_BIG
);
4803 r_index
= ((rel
->r_index
[2] << 16)
4804 | (rel
->r_index
[1] << 8)
4806 r_extern
= (0 != (rel
->r_type
[0] & RELOC_EXT_BITS_EXTERN_LITTLE
));
4807 r_type
= ((rel
->r_type
[0] & RELOC_EXT_BITS_TYPE_LITTLE
)
4808 >> RELOC_EXT_BITS_TYPE_SH_LITTLE
);
4811 r_addend
= GET_SWORD (input_bfd
, rel
->r_addend
);
4813 BFD_ASSERT (r_type
< TABLE_SIZE (howto_table_ext
));
4817 /* We are generating a relocateable output file, and must
4818 modify the reloc accordingly. */
4821 /* If we know the symbol this relocation is against,
4822 convert it into a relocation against a section. This
4823 is what the native linker does. */
4824 h
= sym_hashes
[r_index
];
4825 if (h
!= (struct aout_link_hash_entry
*) NULL
4826 && (h
->root
.type
== bfd_link_hash_defined
4827 || h
->root
.type
== bfd_link_hash_defweak
))
4829 asection
*output_section
;
4831 /* Change the r_extern value. */
4832 if (output_bfd
->xvec
->header_byteorder_big_p
)
4833 rel
->r_type
[0] &=~ RELOC_EXT_BITS_EXTERN_BIG
;
4835 rel
->r_type
[0] &=~ RELOC_EXT_BITS_EXTERN_LITTLE
;
4837 /* Compute a new r_index. */
4838 output_section
= h
->root
.u
.def
.section
->output_section
;
4839 if (output_section
== obj_textsec (output_bfd
))
4841 else if (output_section
== obj_datasec (output_bfd
))
4843 else if (output_section
== obj_bsssec (output_bfd
))
4848 /* Add the symbol value and the section VMA to the
4850 relocation
= (h
->root
.u
.def
.value
4851 + output_section
->vma
4852 + h
->root
.u
.def
.section
->output_offset
);
4854 /* Now RELOCATION is the VMA of the final
4855 destination. If this is a PC relative reloc,
4856 then ADDEND is the negative of the source VMA.
4857 We want to set ADDEND to the difference between
4858 the destination VMA and the source VMA, which
4859 means we must adjust RELOCATION by the change in
4860 the source VMA. This is done below. */
4864 /* We must change r_index according to the symbol
4866 r_index
= symbol_map
[r_index
];
4872 /* We decided to strip this symbol, but it
4873 turns out that we can't. Note that we
4874 lose the other and desc information here.
4875 I don't think that will ever matter for a
4881 if (! aout_link_write_other_symbol (h
,
4891 name
= strings
+ GET_WORD (input_bfd
,
4892 syms
[r_index
].e_strx
);
4893 if (! ((*finfo
->info
->callbacks
->unattached_reloc
)
4894 (finfo
->info
, name
, input_bfd
, input_section
,
4903 /* If this is a PC relative reloc, then the addend
4904 is the negative of the source VMA. We must
4905 adjust it by the change in the source VMA. This
4909 /* Write out the new r_index value. */
4910 if (output_bfd
->xvec
->header_byteorder_big_p
)
4912 rel
->r_index
[0] = r_index
>> 16;
4913 rel
->r_index
[1] = r_index
>> 8;
4914 rel
->r_index
[2] = r_index
;
4918 rel
->r_index
[2] = r_index
>> 16;
4919 rel
->r_index
[1] = r_index
>> 8;
4920 rel
->r_index
[0] = r_index
;
4925 /* This is a relocation against a section. We must
4926 adjust by the amount that the section moved. */
4927 r_section
= aout_reloc_index_to_section (input_bfd
, r_index
);
4928 relocation
= (r_section
->output_section
->vma
4929 + r_section
->output_offset
4932 /* If this is a PC relative reloc, then the addend is
4933 the difference in VMA between the destination and the
4934 source. We have just adjusted for the change in VMA
4935 of the destination, so we must also adjust by the
4936 change in VMA of the source. This is done below. */
4939 /* As described above, we must always adjust a PC relative
4940 reloc by the change in VMA of the source. */
4941 if (howto_table_ext
[r_type
].pc_relative
)
4942 relocation
-= (input_section
->output_section
->vma
4943 + input_section
->output_offset
4944 - input_section
->vma
);
4946 /* Change the addend if necessary. */
4947 if (relocation
!= 0)
4948 PUT_WORD (output_bfd
, r_addend
+ relocation
, rel
->r_addend
);
4950 /* Change the address of the relocation. */
4951 PUT_WORD (output_bfd
,
4952 r_addr
+ input_section
->output_offset
,
4958 bfd_reloc_status_type r
;
4960 /* We are generating an executable, and must do a full
4965 h
= sym_hashes
[r_index
];
4967 if (h
!= (struct aout_link_hash_entry
*) NULL
4968 && (h
->root
.type
== bfd_link_hash_defined
4969 || h
->root
.type
== bfd_link_hash_defweak
))
4971 relocation
= (h
->root
.u
.def
.value
4972 + h
->root
.u
.def
.section
->output_section
->vma
4973 + h
->root
.u
.def
.section
->output_offset
);
4975 else if (h
!= (struct aout_link_hash_entry
*) NULL
4976 && h
->root
.type
== bfd_link_hash_undefweak
)
4984 else if (r_type
== RELOC_BASE10
4985 || r_type
== RELOC_BASE13
4986 || r_type
== RELOC_BASE22
)
4988 struct external_nlist
*sym
;
4991 /* For base relative relocs, r_index is always an index
4992 into the symbol table, even if r_extern is 0. */
4993 sym
= syms
+ r_index
;
4994 type
= bfd_h_get_8 (input_bfd
, sym
->e_type
);
4995 if ((type
& N_TYPE
) == N_TEXT
4997 r_section
= obj_textsec (input_bfd
);
4998 else if ((type
& N_TYPE
) == N_DATA
5000 r_section
= obj_datasec (input_bfd
);
5001 else if ((type
& N_TYPE
) == N_BSS
5003 r_section
= obj_bsssec (input_bfd
);
5004 else if ((type
& N_TYPE
) == N_ABS
5006 r_section
= bfd_abs_section_ptr
;
5009 relocation
= (r_section
->output_section
->vma
5010 + r_section
->output_offset
5011 + (GET_WORD (input_bfd
, sym
->e_value
)
5016 r_section
= aout_reloc_index_to_section (input_bfd
, r_index
);
5018 /* If this is a PC relative reloc, then R_ADDEND is the
5019 difference between the two vmas, or
5020 old_dest_sec + old_dest_off - (old_src_sec + old_src_off)
5022 old_dest_sec == section->vma
5024 old_src_sec == input_section->vma
5026 old_src_off == r_addr
5028 _bfd_final_link_relocate expects RELOCATION +
5029 R_ADDEND to be the VMA of the destination minus
5030 r_addr (the minus r_addr is because this relocation
5031 is not pcrel_offset, which is a bit confusing and
5032 should, perhaps, be changed), or
5035 new_dest_sec == output_section->vma + output_offset
5036 We arrange for this to happen by setting RELOCATION to
5037 new_dest_sec + old_src_sec - old_dest_sec
5039 If this is not a PC relative reloc, then R_ADDEND is
5040 simply the VMA of the destination, so we set
5041 RELOCATION to the change in the destination VMA, or
5042 new_dest_sec - old_dest_sec
5044 relocation
= (r_section
->output_section
->vma
5045 + r_section
->output_offset
5047 if (howto_table_ext
[r_type
].pc_relative
)
5048 relocation
+= input_section
->vma
;
5051 if (check_dynamic_reloc
!= NULL
)
5055 if (! ((*check_dynamic_reloc
)
5056 (finfo
->info
, input_bfd
, input_section
, h
,
5057 (PTR
) rel
, contents
, &skip
, &relocation
)))
5063 /* Now warn if a global symbol is undefined. We could not
5064 do this earlier, because check_dynamic_reloc might want
5065 to skip this reloc. */
5067 && ! finfo
->info
->shared
5068 && r_type
!= RELOC_BASE10
5069 && r_type
!= RELOC_BASE13
5070 && r_type
!= RELOC_BASE22
)
5074 name
= strings
+ GET_WORD (input_bfd
, syms
[r_index
].e_strx
);
5075 if (! ((*finfo
->info
->callbacks
->undefined_symbol
)
5076 (finfo
->info
, name
, input_bfd
, input_section
, r_addr
)))
5080 r
= MY_final_link_relocate (howto_table_ext
+ r_type
,
5081 input_bfd
, input_section
,
5082 contents
, r_addr
, relocation
,
5084 if (r
!= bfd_reloc_ok
)
5089 case bfd_reloc_outofrange
:
5091 case bfd_reloc_overflow
:
5096 || r_type
== RELOC_BASE10
5097 || r_type
== RELOC_BASE13
5098 || r_type
== RELOC_BASE22
)
5099 name
= strings
+ GET_WORD (input_bfd
,
5100 syms
[r_index
].e_strx
);
5105 s
= aout_reloc_index_to_section (input_bfd
, r_index
);
5106 name
= bfd_section_name (input_bfd
, s
);
5108 if (! ((*finfo
->info
->callbacks
->reloc_overflow
)
5109 (finfo
->info
, name
, howto_table_ext
[r_type
].name
,
5110 r_addend
, input_bfd
, input_section
, r_addr
)))
5122 /* Handle a link order which is supposed to generate a reloc. */
5125 aout_link_reloc_link_order (finfo
, o
, p
)
5126 struct aout_final_link_info
*finfo
;
5128 struct bfd_link_order
*p
;
5130 struct bfd_link_order_reloc
*pr
;
5133 reloc_howto_type
*howto
;
5134 file_ptr
*reloff_ptr
;
5135 struct reloc_std_external srel
;
5136 struct reloc_ext_external erel
;
5141 if (p
->type
== bfd_section_reloc_link_order
)
5144 if (bfd_is_abs_section (pr
->u
.section
))
5145 r_index
= N_ABS
| N_EXT
;
5148 BFD_ASSERT (pr
->u
.section
->owner
== finfo
->output_bfd
);
5149 r_index
= pr
->u
.section
->target_index
;
5154 struct aout_link_hash_entry
*h
;
5156 BFD_ASSERT (p
->type
== bfd_symbol_reloc_link_order
);
5158 h
= aout_link_hash_lookup (aout_hash_table (finfo
->info
),
5159 pr
->u
.name
, false, false, true);
5160 if (h
!= (struct aout_link_hash_entry
*) NULL
5165 /* We decided to strip this symbol, but it turns out that we
5166 can't. Note that we lose the other and desc information
5167 here. I don't think that will ever matter for a global
5171 if (! aout_link_write_other_symbol (h
, (PTR
) finfo
))
5177 if (! ((*finfo
->info
->callbacks
->unattached_reloc
)
5178 (finfo
->info
, pr
->u
.name
, (bfd
*) NULL
,
5179 (asection
*) NULL
, (bfd_vma
) 0)))
5185 howto
= bfd_reloc_type_lookup (finfo
->output_bfd
, pr
->reloc
);
5188 bfd_set_error (bfd_error_bad_value
);
5192 if (o
== obj_textsec (finfo
->output_bfd
))
5193 reloff_ptr
= &finfo
->treloff
;
5194 else if (o
== obj_datasec (finfo
->output_bfd
))
5195 reloff_ptr
= &finfo
->dreloff
;
5199 if (obj_reloc_entry_size (finfo
->output_bfd
) == RELOC_STD_SIZE
)
5202 MY_put_reloc(finfo
->output_bfd
, r_extern
, r_index
, p
->offset
, howto
,
5212 r_pcrel
= howto
->pc_relative
;
5213 r_baserel
= (howto
->type
& 8) != 0;
5214 r_jmptable
= (howto
->type
& 16) != 0;
5215 r_relative
= (howto
->type
& 32) != 0;
5216 r_length
= howto
->size
;
5218 PUT_WORD (finfo
->output_bfd
, p
->offset
, srel
.r_address
);
5219 if (finfo
->output_bfd
->xvec
->header_byteorder_big_p
)
5221 srel
.r_index
[0] = r_index
>> 16;
5222 srel
.r_index
[1] = r_index
>> 8;
5223 srel
.r_index
[2] = r_index
;
5225 ((r_extern
? RELOC_STD_BITS_EXTERN_BIG
: 0)
5226 | (r_pcrel
? RELOC_STD_BITS_PCREL_BIG
: 0)
5227 | (r_baserel
? RELOC_STD_BITS_BASEREL_BIG
: 0)
5228 | (r_jmptable
? RELOC_STD_BITS_JMPTABLE_BIG
: 0)
5229 | (r_relative
? RELOC_STD_BITS_RELATIVE_BIG
: 0)
5230 | (r_length
<< RELOC_STD_BITS_LENGTH_SH_BIG
));
5234 srel
.r_index
[2] = r_index
>> 16;
5235 srel
.r_index
[1] = r_index
>> 8;
5236 srel
.r_index
[0] = r_index
;
5238 ((r_extern
? RELOC_STD_BITS_EXTERN_LITTLE
: 0)
5239 | (r_pcrel
? RELOC_STD_BITS_PCREL_LITTLE
: 0)
5240 | (r_baserel
? RELOC_STD_BITS_BASEREL_LITTLE
: 0)
5241 | (r_jmptable
? RELOC_STD_BITS_JMPTABLE_LITTLE
: 0)
5242 | (r_relative
? RELOC_STD_BITS_RELATIVE_LITTLE
: 0)
5243 | (r_length
<< RELOC_STD_BITS_LENGTH_SH_LITTLE
));
5247 rel_ptr
= (PTR
) &srel
;
5249 /* We have to write the addend into the object file, since
5250 standard a.out relocs are in place. It would be more
5251 reliable if we had the current contents of the file here,
5252 rather than assuming zeroes, but we can't read the file since
5253 it was opened using bfd_openw. */
5254 if (pr
->addend
!= 0)
5257 bfd_reloc_status_type r
;
5261 size
= bfd_get_reloc_size (howto
);
5262 buf
= (bfd_byte
*) bfd_zmalloc (size
);
5263 if (buf
== (bfd_byte
*) NULL
)
5265 bfd_set_error (bfd_error_no_memory
);
5268 r
= MY_relocate_contents (howto
, finfo
->output_bfd
,
5275 case bfd_reloc_outofrange
:
5277 case bfd_reloc_overflow
:
5278 if (! ((*finfo
->info
->callbacks
->reloc_overflow
)
5280 (p
->type
== bfd_section_reloc_link_order
5281 ? bfd_section_name (finfo
->output_bfd
,
5284 howto
->name
, pr
->addend
, (bfd
*) NULL
,
5285 (asection
*) NULL
, (bfd_vma
) 0)))
5292 ok
= bfd_set_section_contents (finfo
->output_bfd
, o
,
5294 (file_ptr
) p
->offset
,
5303 PUT_WORD (finfo
->output_bfd
, p
->offset
, erel
.r_address
);
5305 if (finfo
->output_bfd
->xvec
->header_byteorder_big_p
)
5307 erel
.r_index
[0] = r_index
>> 16;
5308 erel
.r_index
[1] = r_index
>> 8;
5309 erel
.r_index
[2] = r_index
;
5311 ((r_extern
? RELOC_EXT_BITS_EXTERN_BIG
: 0)
5312 | (howto
->type
<< RELOC_EXT_BITS_TYPE_SH_BIG
));
5316 erel
.r_index
[2] = r_index
>> 16;
5317 erel
.r_index
[1] = r_index
>> 8;
5318 erel
.r_index
[0] = r_index
;
5320 (r_extern
? RELOC_EXT_BITS_EXTERN_LITTLE
: 0)
5321 | (howto
->type
<< RELOC_EXT_BITS_TYPE_SH_LITTLE
);
5324 PUT_WORD (finfo
->output_bfd
, pr
->addend
, erel
.r_addend
);
5326 rel_ptr
= (PTR
) &erel
;
5329 if (bfd_seek (finfo
->output_bfd
, *reloff_ptr
, SEEK_SET
) != 0
5330 || (bfd_write (rel_ptr
, (bfd_size_type
) 1,
5331 obj_reloc_entry_size (finfo
->output_bfd
),
5333 != obj_reloc_entry_size (finfo
->output_bfd
)))
5336 *reloff_ptr
+= obj_reloc_entry_size (finfo
->output_bfd
);
5338 /* Assert that the relocs have not run into the symbols, and that n
5339 the text relocs have not run into the data relocs. */
5340 BFD_ASSERT (*reloff_ptr
<= obj_sym_filepos (finfo
->output_bfd
)
5341 && (reloff_ptr
!= &finfo
->treloff
5343 <= obj_datasec (finfo
->output_bfd
)->rel_filepos
)));