Add missing prototypes
[binutils-gdb.git] / bfd / hp300hpux.c
1 /* BFD backend for hp-ux 9000/300
2 Copyright 1990, 1991, 1993, 1994, 1995, 1997, 2000, 2001
3 Free Software Foundation, Inc.
4 Written by Glenn Engel.
5
6 This file is part of BFD, the Binary File Descriptor library.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21
22 /*
23 hpux native ------------> | |
24 | hp300hpux bfd | ----------> hpux w/gnu ext
25 hpux w/gnu extension ----> | |
26
27 Support for the 9000/[34]00 has several limitations.
28 1. Shared libraries are not supported.
29 2. The output format from this bfd is not usable by native tools.
30
31 The primary motivation for writing this bfd was to allow use of
32 gdb and gcc for host based debugging and not to mimic the hp-ux tools
33 in every detail. This leads to a significant simplification of the
34 code and a leap in performance. The decision to not output hp native
35 compatible objects was further strengthened by the fact that the richness
36 of the gcc compiled objects could not be represented without loss of
37 information. For example, while the hp format supports the concept of
38 secondary symbols, it does not support indirect symbols. Another
39 reason is to maintain backwards compatibility with older implementations
40 of gcc on hpux which used 'hpxt' to translate .a and .o files into a
41 format which could be readily understood by the gnu linker and gdb.
42 This allows reading hp secondary symbols and converting them into
43 indirect symbols but the reverse it not always possible.
44
45 Another example of differences is that the hp format stores symbol offsets
46 in the object code while the gnu utilities use a field in the
47 relocation record for this. To support the hp native format, the object
48 code would need to be patched with the offsets when producing .o files.
49
50 The basic technique taken in this implementation is to #include the code
51 from aoutx.h and aout-target.h with appropriate #defines to override
52 code where a unique implementation is needed:
53
54 {
55 #define a bunch of stuff
56 #include <aoutx.h>
57
58 implement a bunch of functions
59
60 #include "aout-target.h"
61 }
62
63 The hp symbol table is a bit different than other a.out targets. Instead
64 of having an array of nlist items and an array of strings, hp's format
65 has them mixed together in one structure. In addition, the strings are
66 not null terminated. It looks something like this:
67
68 nlist element 1
69 string1
70 nlist element 2
71 string2
72 ...
73
74 The whole symbol table is read as one chunk and then we march thru it
75 and convert it to canonical form. As we march thru the table, we copy
76 the nlist data into the internal form and we compact the strings and null
77 terminate them, using storage from the already allocated symbol table:
78
79 string1
80 null
81 string2
82 null
83 */
84
85 /* @@ Is this really so different from normal a.out that it needs to include
86 aoutx.h? We should go through this file sometime and see what can be made
87 more dependent on aout32.o and what might need to be broken off and accessed
88 through the backend_data field. Or, maybe we really do need such a
89 completely separate implementation. I don't have time to investigate this
90 much further right now. [raeburn:19930428.2124EST] */
91 /* @@ Also, note that there wind up being two versions of some routines, with
92 different names, only one of which actually gets used. For example:
93 slurp_symbol_table
94 swap_std_reloc_in
95 slurp_reloc_table
96 get_symtab
97 get_symtab_upper_bound
98 canonicalize_reloc
99 mkobject
100 This should also be fixed. */
101
102 #define TARGETNAME "a.out-hp300hpux"
103 #define MY(OP) CAT(hp300hpux_,OP)
104
105 #define external_exec hp300hpux_exec_bytes
106 #define external_nlist hp300hpux_nlist_bytes
107
108 #include "aout/hp300hpux.h"
109
110 /* define these so we can compile unused routines in aoutx.h */
111 #define e_strx e_shlib
112 #define e_other e_length
113 #define e_desc e_almod
114
115 #define AR_PAD_CHAR '/'
116 #define TARGET_IS_BIG_ENDIAN_P
117 #define DEFAULT_ARCH bfd_arch_m68k
118
119 #define MY_get_section_contents aout_32_get_section_contents
120 #define MY_slurp_armap bfd_slurp_bsd_armap_f2
121
122 /***********************************************/
123 /* provide overrides for routines in this file */
124 /***********************************************/
125 /* these don't use MY because that causes problems within JUMP_TABLE
126 (CAT winds up being expanded recursively, which ANSI C compilers
127 will not do). */
128 #define MY_get_symtab hp300hpux_get_symtab
129 #define MY_get_symtab_upper_bound hp300hpux_get_symtab_upper_bound
130 #define MY_canonicalize_reloc hp300hpux_canonicalize_reloc
131 #define MY_write_object_contents hp300hpux_write_object_contents
132
133 #define MY_read_minisymbols _bfd_generic_read_minisymbols
134 #define MY_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
135
136 #define MY_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
137 #define MY_bfd_link_add_symbols _bfd_generic_link_add_symbols
138 #define MY_final_link_callback unused
139 #define MY_bfd_final_link _bfd_generic_final_link
140
141 /* Until and unless we convert the slurp_reloc and slurp_symtab
142 routines in this file, we can not use the default aout
143 free_cached_info routine which assumes that the relocs and symtabs
144 were allocated using malloc. */
145 #define MY_bfd_free_cached_info bfd_true
146
147 #define hp300hpux_write_syms aout_32_write_syms
148
149 #define MY_callback MY(callback)
150
151 #define MY_exec_hdr_flags 0x2
152
153 #define NAME_swap_exec_header_in NAME(hp300hpux_32_,swap_exec_header_in)
154
155 #define HP_SYMTYPE_UNDEFINED 0x00
156 #define HP_SYMTYPE_ABSOLUTE 0x01
157 #define HP_SYMTYPE_TEXT 0x02
158 #define HP_SYMTYPE_DATA 0x03
159 #define HP_SYMTYPE_BSS 0x04
160 #define HP_SYMTYPE_COMMON 0x05
161
162 #define HP_SYMTYPE_TYPE 0x0F
163 #define HP_SYMTYPE_FILENAME 0x1F
164
165 #define HP_SYMTYPE_ALIGN 0x10
166 #define HP_SYMTYPE_EXTERNAL 0x20
167 #define HP_SECONDARY_SYMBOL 0x40
168
169 /* RELOCATION DEFINITIONS */
170 #define HP_RSEGMENT_TEXT 0x00
171 #define HP_RSEGMENT_DATA 0x01
172 #define HP_RSEGMENT_BSS 0x02
173 #define HP_RSEGMENT_EXTERNAL 0x03
174 #define HP_RSEGMENT_PCREL 0x04
175 #define HP_RSEGMENT_RDLT 0x05
176 #define HP_RSEGMENT_RPLT 0x06
177 #define HP_RSEGMENT_NOOP 0x3F
178
179 #define HP_RLENGTH_BYTE 0x00
180 #define HP_RLENGTH_WORD 0x01
181 #define HP_RLENGTH_LONG 0x02
182 #define HP_RLENGTH_ALIGN 0x03
183
184 #define NAME(x,y) CAT3(hp300hpux,_32_,y)
185 #define ARCH_SIZE 32
186
187 /* aoutx.h requires definitions for BMAGIC and QMAGIC. */
188 #define BMAGIC HPUX_DOT_O_MAGIC
189 #define QMAGIC 0314
190
191 #include "aoutx.h"
192
193 static const bfd_target * MY (callback) PARAMS ((bfd *));
194 static boolean MY (write_object_contents) PARAMS ((bfd *));
195 static void convert_sym_type PARAMS ((struct external_nlist *, aout_symbol_type *, bfd *));
196
197 boolean MY (slurp_symbol_table) PARAMS ((bfd *));
198 void MY (swap_std_reloc_in) PARAMS ((bfd *, struct hp300hpux_reloc *, arelent *, asymbol **, bfd_size_type));
199 boolean MY (slurp_reloc_table) PARAMS ((bfd *, sec_ptr, asymbol **));
200 long MY (get_symtab) PARAMS ((bfd *, asymbol **));
201 long MY (get_symtab_upper_bound) PARAMS ((bfd *));
202 long MY (canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **, asymbol **));
203
204 /* Since the hpux symbol table has nlist elements interspersed with
205 strings and we need to insert som strings for secondary symbols, we
206 give ourselves a little extra padding up front to account for
207 this. Note that for each non-secondary symbol we process, we gain
208 9 bytes of space for the discarded nlist element (one byte used for
209 null). SYM_EXTRA_BYTES is the extra space. */
210 #define SYM_EXTRA_BYTES 1024
211
212 /* Set parameters about this a.out file that are machine-dependent.
213 This routine is called from some_aout_object_p just before it returns. */
214 static const bfd_target *
215 MY (callback) (abfd)
216 bfd *abfd;
217 {
218 struct internal_exec *execp = exec_hdr (abfd);
219
220 /* Calculate the file positions of the parts of a newly read aout header */
221 obj_textsec (abfd)->_raw_size = N_TXTSIZE (*execp);
222
223 /* The virtual memory addresses of the sections */
224 obj_textsec (abfd)->vma = N_TXTADDR (*execp);
225 obj_datasec (abfd)->vma = N_DATADDR (*execp);
226 obj_bsssec (abfd)->vma = N_BSSADDR (*execp);
227
228 obj_textsec (abfd)->lma = obj_textsec (abfd)->vma;
229 obj_datasec (abfd)->lma = obj_datasec (abfd)->vma;
230 obj_bsssec (abfd)->lma = obj_bsssec (abfd)->vma;
231
232 /* The file offsets of the sections */
233 obj_textsec (abfd)->filepos = N_TXTOFF (*execp);
234 obj_datasec (abfd)->filepos = N_DATOFF (*execp);
235
236 /* The file offsets of the relocation info */
237 obj_textsec (abfd)->rel_filepos = N_TRELOFF (*execp);
238 obj_datasec (abfd)->rel_filepos = N_DRELOFF (*execp);
239
240 /* The file offsets of the string table and symbol table. */
241 obj_sym_filepos (abfd) = N_SYMOFF (*execp);
242 obj_str_filepos (abfd) = N_STROFF (*execp);
243
244 /* Determine the architecture and machine type of the object file. */
245 #ifdef SET_ARCH_MACH
246 SET_ARCH_MACH (abfd, *execp);
247 #else
248 bfd_default_set_arch_mach (abfd, DEFAULT_ARCH, 0);
249 #endif
250
251 if (obj_aout_subformat (abfd) == gnu_encap_format)
252 {
253 /* The file offsets of the relocation info */
254 obj_textsec (abfd)->rel_filepos = N_GNU_TRELOFF (*execp);
255 obj_datasec (abfd)->rel_filepos = N_GNU_DRELOFF (*execp);
256
257 /* The file offsets of the string table and symbol table. */
258 obj_sym_filepos (abfd) = N_GNU_SYMOFF (*execp);
259 obj_str_filepos (abfd) = (obj_sym_filepos (abfd) + execp->a_syms);
260
261 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
262 bfd_get_symcount (abfd) = execp->a_syms / 12;
263 obj_symbol_entry_size (abfd) = 12;
264 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
265 }
266
267 return abfd->xvec;
268 }
269
270 extern boolean aout_32_write_syms PARAMS ((bfd * abfd));
271
272 static boolean
273 MY (write_object_contents) (abfd)
274 bfd *abfd;
275 {
276 struct external_exec exec_bytes;
277 struct internal_exec *execp = exec_hdr (abfd);
278 bfd_size_type text_size; /* dummy vars */
279 file_ptr text_end;
280
281 memset (&exec_bytes, 0, sizeof (exec_bytes));
282
283 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
284
285 if (adata (abfd).magic == undecided_magic)
286 NAME (aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end);
287 execp->a_syms = 0;
288
289 execp->a_entry = bfd_get_start_address (abfd);
290
291 execp->a_trsize = ((obj_textsec (abfd)->reloc_count) *
292 obj_reloc_entry_size (abfd));
293 execp->a_drsize = ((obj_datasec (abfd)->reloc_count) *
294 obj_reloc_entry_size (abfd));
295
296 N_SET_MACHTYPE (*execp, 0xc);
297 N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags);
298
299 NAME (aout,swap_exec_header_out) (abfd, execp, &exec_bytes);
300
301 /* update fields not covered by default swap_exec_header_out */
302
303 /* this is really the sym table size but we store it in drelocs */
304 bfd_h_put_32 (abfd, bfd_get_symcount (abfd) * 12, exec_bytes.e_drelocs);
305
306 if (bfd_seek (abfd, 0L, false) != 0
307 || (bfd_write ((PTR) & exec_bytes, 1, EXEC_BYTES_SIZE, abfd)
308 != EXEC_BYTES_SIZE))
309 return false;
310
311 /* Write out the symbols, and then the relocs. We must write out
312 the symbols first so that we know the symbol indices. */
313
314 if (bfd_get_symcount (abfd) != 0)
315 {
316 /* Skip the relocs to where we want to put the symbols. */
317 if (bfd_seek (abfd, (file_ptr) N_DRELOFF (*execp) + execp->a_drsize,
318 SEEK_SET) != 0)
319 return false;
320 }
321
322 if (!MY (write_syms) (abfd))
323 return false;
324
325 if (bfd_get_symcount (abfd) != 0)
326 {
327 if (bfd_seek (abfd, (long) (N_TRELOFF (*execp)), false) != 0)
328 return false;
329 if (!NAME (aout,squirt_out_relocs) (abfd, obj_textsec (abfd)))
330 return false;
331 if (bfd_seek (abfd, (long) (N_DRELOFF (*execp)), false) != 0)
332 return false;
333 if (!NAME (aout,squirt_out_relocs) (abfd, obj_datasec (abfd)))
334 return false;
335 }
336
337 return true;
338 }
339
340 /* convert the hp symbol type to be the same as aout64.h usage so we */
341 /* can piggyback routines in aoutx.h. */
342
343 static void
344 convert_sym_type (sym_pointer, cache_ptr, abfd)
345 struct external_nlist *sym_pointer ATTRIBUTE_UNUSED;
346 aout_symbol_type *cache_ptr;
347 bfd *abfd ATTRIBUTE_UNUSED;
348 {
349 int name_type;
350 int new_type;
351
352 name_type = (cache_ptr->type);
353 new_type = 0;
354
355 if ((name_type & HP_SYMTYPE_ALIGN) != 0)
356 {
357 /* iou_error ("aligned symbol encountered: %s", name);*/
358 name_type = 0;
359 }
360
361 if (name_type == HP_SYMTYPE_FILENAME)
362 new_type = N_FN;
363 else
364 {
365 switch (name_type & HP_SYMTYPE_TYPE)
366 {
367 case HP_SYMTYPE_UNDEFINED:
368 new_type = N_UNDF;
369 break;
370
371 case HP_SYMTYPE_ABSOLUTE:
372 new_type = N_ABS;
373 break;
374
375 case HP_SYMTYPE_TEXT:
376 new_type = N_TEXT;
377 break;
378
379 case HP_SYMTYPE_DATA:
380 new_type = N_DATA;
381 break;
382
383 case HP_SYMTYPE_BSS:
384 new_type = N_BSS;
385 break;
386
387 case HP_SYMTYPE_COMMON:
388 new_type = N_COMM;
389 break;
390
391 default:
392 abort ();
393 break;
394 }
395 if (name_type & HP_SYMTYPE_EXTERNAL)
396 new_type |= N_EXT;
397
398 if (name_type & HP_SECONDARY_SYMBOL)
399 {
400 switch (new_type)
401 {
402 default:
403 abort ();
404 case N_UNDF | N_EXT:
405 /* If the value is nonzero, then just treat this as a
406 common symbol. I don't know if this is correct in
407 all cases, but it is more correct than treating it as
408 a weak undefined symbol. */
409 if (cache_ptr->symbol.value == 0)
410 new_type = N_WEAKU;
411 break;
412 case N_ABS | N_EXT:
413 new_type = N_WEAKA;
414 break;
415 case N_TEXT | N_EXT:
416 new_type = N_WEAKT;
417 break;
418 case N_DATA | N_EXT:
419 new_type = N_WEAKD;
420 break;
421 case N_BSS | N_EXT:
422 new_type = N_WEAKB;
423 break;
424 }
425 }
426 }
427 cache_ptr->type = new_type;
428
429 }
430
431 /*
432 DESCRIPTION
433 Swaps the information in an executable header taken from a raw
434 byte stream memory image, into the internal exec_header
435 structure.
436 */
437
438 void
439 NAME (aout,swap_exec_header_in) (abfd, raw_bytes, execp)
440 bfd *abfd;
441 struct external_exec *raw_bytes;
442 struct internal_exec *execp;
443 {
444 struct external_exec *bytes = (struct external_exec *) raw_bytes;
445
446 /* The internal_exec structure has some fields that are unused in this
447 configuration (IE for i960), so ensure that all such uninitialized
448 fields are zero'd out. There are places where two of these structs
449 are memcmp'd, and thus the contents do matter. */
450 memset (execp, 0, sizeof (struct internal_exec));
451 /* Now fill in fields in the execp, from the bytes in the raw data. */
452 execp->a_info = bfd_h_get_32 (abfd, bytes->e_info);
453 execp->a_text = GET_WORD (abfd, bytes->e_text);
454 execp->a_data = GET_WORD (abfd, bytes->e_data);
455 execp->a_bss = GET_WORD (abfd, bytes->e_bss);
456 execp->a_syms = GET_WORD (abfd, bytes->e_syms);
457 execp->a_entry = GET_WORD (abfd, bytes->e_entry);
458 execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
459 execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
460
461 /***************************************************************/
462 /* check the header to see if it was generated by a bfd output */
463 /* this is detected rather bizarely by requiring a bunch of */
464 /* header fields to be zero and an old unused field (now used) */
465 /* to be set. */
466 /***************************************************************/
467 do
468 {
469 long syms;
470 struct aout_data_struct *rawptr;
471 if (bfd_h_get_32 (abfd, bytes->e_passize) != 0)
472 break;
473 if (bfd_h_get_32 (abfd, bytes->e_syms) != 0)
474 break;
475 if (bfd_h_get_32 (abfd, bytes->e_supsize) != 0)
476 break;
477
478 syms = bfd_h_get_32 (abfd, bytes->e_drelocs);
479 if (syms == 0)
480 break;
481
482 /* OK, we've passed the test as best as we can determine */
483 execp->a_syms = syms;
484
485 /* allocate storage for where we will store this result */
486 rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, sizeof (*rawptr));
487
488 if (rawptr == NULL)
489 return;
490 abfd->tdata.aout_data = rawptr;
491 obj_aout_subformat (abfd) = gnu_encap_format;
492 }
493 while (0);
494 }
495
496 /* The hp symbol table is a bit different than other a.out targets. Instead
497 of having an array of nlist items and an array of strings, hp's format
498 has them mixed together in one structure. In addition, the strings are
499 not null terminated. It looks something like this:
500
501 nlist element 1
502 string1
503 nlist element 2
504 string2
505 ...
506
507 The whole symbol table is read as one chunk and then we march thru it
508 and convert it to canonical form. As we march thru the table, we copy
509 the nlist data into the internal form and we compact the strings and null
510 terminate them, using storage from the already allocated symbol table:
511
512 string1
513 null
514 string2
515 null
516 ...
517 */
518
519 boolean
520 MY (slurp_symbol_table) (abfd)
521 bfd *abfd;
522 {
523 bfd_size_type symbol_bytes;
524 struct external_nlist *syms;
525 struct external_nlist *sym_pointer;
526 struct external_nlist *sym_end;
527 char *strings;
528 aout_symbol_type *cached;
529 unsigned num_syms = 0;
530
531 /* If there's no work to be done, don't do any */
532 if (obj_aout_symbols (abfd) != (aout_symbol_type *) NULL)
533 return true;
534 symbol_bytes = exec_hdr (abfd)->a_syms;
535
536 strings = (char *) bfd_alloc (abfd,
537 symbol_bytes + SYM_EXTRA_BYTES);
538 if (!strings)
539 return false;
540 syms = (struct external_nlist *) (strings + SYM_EXTRA_BYTES);
541 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
542 || bfd_read ((PTR) syms, symbol_bytes, 1, abfd) != symbol_bytes)
543 {
544 bfd_release (abfd, syms);
545 return false;
546 }
547
548 sym_end = (struct external_nlist *) (((char *) syms) + symbol_bytes);
549
550 /* first, march thru the table and figure out how many symbols there are */
551 for (sym_pointer = syms; sym_pointer < sym_end; sym_pointer++, num_syms++)
552 {
553 /* skip over the embedded symbol. */
554 sym_pointer = (struct external_nlist *) (((char *) sym_pointer) +
555 sym_pointer->e_length[0]);
556 }
557
558 /* now that we know the symbol count, update the bfd header */
559 bfd_get_symcount (abfd) = num_syms;
560
561 cached = ((aout_symbol_type *)
562 bfd_zalloc (abfd,
563 bfd_get_symcount (abfd) * sizeof (aout_symbol_type)));
564 if (cached == NULL && bfd_get_symcount (abfd) != 0)
565 return false;
566
567 /* as we march thru the hp symbol table, convert it into a list of
568 null terminated strings to hold the symbol names. Make sure any
569 assignment to the strings pointer is done after we're thru using
570 the nlist so we don't overwrite anything important. */
571
572 /* OK, now walk the new symtable, cacheing symbol properties */
573 {
574 aout_symbol_type *cache_ptr = cached;
575 aout_symbol_type cache_save;
576 /* Run through table and copy values */
577 for (sym_pointer = syms, cache_ptr = cached;
578 sym_pointer < sym_end; sym_pointer++, cache_ptr++)
579 {
580 unsigned int length;
581 cache_ptr->symbol.the_bfd = abfd;
582 cache_ptr->symbol.value = GET_SWORD (abfd, sym_pointer->e_value);
583 cache_ptr->desc = bfd_get_16 (abfd, sym_pointer->e_almod);
584 cache_ptr->type = bfd_get_8 (abfd, sym_pointer->e_type);
585 cache_ptr->symbol.udata.p = NULL;
586 length = bfd_get_8 (abfd, sym_pointer->e_length);
587 cache_ptr->other = length; /* other not used, save length here */
588
589 cache_save = *cache_ptr;
590 convert_sym_type (sym_pointer, cache_ptr, abfd);
591 if (!translate_from_native_sym_flags (abfd, cache_ptr))
592 return false;
593
594 /********************************************************/
595 /* for hpux, the 'lenght' value indicates the length of */
596 /* the symbol name which follows the nlist entry. */
597 /********************************************************/
598 if (length)
599 {
600 /**************************************************************/
601 /* the hp string is not null terminated so we create a new one*/
602 /* by copying the string to overlap the just vacated nlist */
603 /* structure before it in memory. */
604 /**************************************************************/
605 cache_ptr->symbol.name = strings;
606 memcpy (strings, sym_pointer + 1, length);
607 strings[length] = '\0';
608 strings += length + 1;
609 }
610 else
611 cache_ptr->symbol.name = (char *) NULL;
612
613 /* skip over the embedded symbol. */
614 sym_pointer = (struct external_nlist *) (((char *) sym_pointer) +
615 length);
616 }
617 }
618
619 obj_aout_symbols (abfd) = cached;
620
621 return true;
622 }
623
624 void
625 MY (swap_std_reloc_in) (abfd, bytes, cache_ptr, symbols, symcount)
626 bfd *abfd;
627 struct hp300hpux_reloc *bytes;
628 arelent *cache_ptr;
629 asymbol **symbols;
630 bfd_size_type symcount ATTRIBUTE_UNUSED;
631 {
632 int r_index;
633 int r_extern = 0;
634 unsigned int r_length;
635 int r_pcrel = 0;
636 struct aoutdata *su = &(abfd->tdata.aout_data->a);
637
638 cache_ptr->address = bfd_h_get_32 (abfd, bytes->r_address);
639 r_index = bfd_h_get_16 (abfd, bytes->r_index);
640
641 switch (bytes->r_type[0])
642 {
643 case HP_RSEGMENT_TEXT:
644 r_index = N_TEXT;
645 break;
646 case HP_RSEGMENT_DATA:
647 r_index = N_DATA;
648 break;
649 case HP_RSEGMENT_BSS:
650 r_index = N_BSS;
651 break;
652 case HP_RSEGMENT_EXTERNAL:
653 r_extern = 1;
654 break;
655 case HP_RSEGMENT_PCREL:
656 r_extern = 1;
657 r_pcrel = 1;
658 break;
659 case HP_RSEGMENT_RDLT:
660 break;
661 case HP_RSEGMENT_RPLT:
662 break;
663 case HP_RSEGMENT_NOOP:
664 break;
665 default:
666 abort ();
667 break;
668 }
669
670 switch (bytes->r_length[0])
671 {
672 case HP_RLENGTH_BYTE:
673 r_length = 0;
674 break;
675 case HP_RLENGTH_WORD:
676 r_length = 1;
677 break;
678 case HP_RLENGTH_LONG:
679 r_length = 2;
680 break;
681 default:
682 abort ();
683 break;
684 }
685
686 cache_ptr->howto = howto_table_std + r_length + 4 * r_pcrel;
687 /* FIXME-soon: Roll baserel, jmptable, relative bits into howto setting */
688
689 /* This macro uses the r_index value computed above */
690 if (r_pcrel && r_extern)
691 {
692 /* The GNU linker assumes any offset from beginning of section */
693 /* is already incorporated into the image while the HP linker */
694 /* adds this in later. Add it in now... */
695 MOVE_ADDRESS (-cache_ptr->address);
696 }
697 else
698 {
699 MOVE_ADDRESS (0);
700 }
701 }
702
703 boolean
704 MY (slurp_reloc_table) (abfd, asect, symbols)
705 bfd *abfd;
706 sec_ptr asect;
707 asymbol **symbols;
708 {
709 unsigned int count;
710 bfd_size_type reloc_size;
711 PTR relocs;
712 arelent *reloc_cache;
713 size_t each_size;
714 struct hp300hpux_reloc *rptr;
715 unsigned int counter;
716 arelent *cache_ptr;
717
718 if (asect->relocation)
719 return true;
720
721 if (asect->flags & SEC_CONSTRUCTOR)
722 return true;
723
724 if (asect == obj_datasec (abfd))
725 {
726 reloc_size = exec_hdr (abfd)->a_drsize;
727 goto doit;
728 }
729
730 if (asect == obj_textsec (abfd))
731 {
732 reloc_size = exec_hdr (abfd)->a_trsize;
733 goto doit;
734 }
735
736 bfd_set_error (bfd_error_invalid_operation);
737 return false;
738
739 doit:
740 if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
741 return false;
742 each_size = obj_reloc_entry_size (abfd);
743
744 count = reloc_size / each_size;
745
746 reloc_cache = (arelent *) bfd_zalloc (abfd, (size_t) (count * sizeof
747 (arelent)));
748 if (!reloc_cache && count != 0)
749 return false;
750
751 relocs = (PTR) bfd_alloc (abfd, reloc_size);
752 if (!relocs && reloc_size != 0)
753 {
754 bfd_release (abfd, reloc_cache);
755 return false;
756 }
757
758 if (bfd_read (relocs, 1, reloc_size, abfd) != reloc_size)
759 {
760 bfd_release (abfd, relocs);
761 bfd_release (abfd, reloc_cache);
762 return false;
763 }
764
765 rptr = (struct hp300hpux_reloc *) relocs;
766 counter = 0;
767 cache_ptr = reloc_cache;
768
769 for (; counter < count; counter++, rptr++, cache_ptr++)
770 {
771 MY (swap_std_reloc_in) (abfd, rptr, cache_ptr, symbols,
772 bfd_get_symcount (abfd));
773 }
774
775 bfd_release (abfd, relocs);
776 asect->relocation = reloc_cache;
777 asect->reloc_count = count;
778 return true;
779 }
780
781 /************************************************************************/
782 /* The following functions are identical to functions in aoutx.h except */
783 /* they refer to MY(func) rather than NAME(aout,func) and they also */
784 /* call aout_32 versions if the input file was generated by gcc */
785 /************************************************************************/
786
787 long aout_32_get_symtab PARAMS ((bfd * abfd, asymbol ** location));
788 long aout_32_get_symtab_upper_bound PARAMS ((bfd * abfd));
789
790 long aout_32_canonicalize_reloc PARAMS ((bfd * abfd, sec_ptr section,
791 arelent ** relptr,
792 asymbol ** symbols));
793
794 long
795 MY (get_symtab) (abfd, location)
796 bfd *abfd;
797 asymbol **location;
798 {
799 unsigned int counter = 0;
800 aout_symbol_type *symbase;
801
802 if (obj_aout_subformat (abfd) == gnu_encap_format)
803 return aout_32_get_symtab (abfd, location);
804
805 if (!MY (slurp_symbol_table) (abfd))
806 return -1;
807
808 for (symbase = obj_aout_symbols (abfd); counter++ < bfd_get_symcount (abfd);)
809 *(location++) = (asymbol *) (symbase++);
810 *location++ = 0;
811 return bfd_get_symcount (abfd);
812 }
813
814 long
815 MY (get_symtab_upper_bound) (abfd)
816 bfd *abfd;
817 {
818 if (obj_aout_subformat (abfd) == gnu_encap_format)
819 return aout_32_get_symtab_upper_bound (abfd);
820 if (!MY (slurp_symbol_table) (abfd))
821 return -1;
822
823 return (bfd_get_symcount (abfd) + 1) * (sizeof (aout_symbol_type *));
824 }
825
826 long
827 MY (canonicalize_reloc) (abfd, section, relptr, symbols)
828 bfd *abfd;
829 sec_ptr section;
830 arelent **relptr;
831 asymbol **symbols;
832 {
833 arelent *tblptr = section->relocation;
834 unsigned int count;
835 if (obj_aout_subformat (abfd) == gnu_encap_format)
836 return aout_32_canonicalize_reloc (abfd, section, relptr, symbols);
837
838 if (!(tblptr || MY (slurp_reloc_table) (abfd, section, symbols)))
839 return -1;
840
841 if (section->flags & SEC_CONSTRUCTOR)
842 {
843 arelent_chain *chain = section->constructor_chain;
844 for (count = 0; count < section->reloc_count; count++)
845 {
846 *relptr++ = &chain->relent;
847 chain = chain->next;
848 }
849 }
850 else
851 {
852 tblptr = section->relocation;
853
854 for (count = 0; count++ < section->reloc_count;)
855 {
856 *relptr++ = tblptr++;
857 }
858 }
859 *relptr = 0;
860
861 return section->reloc_count;
862 }
863
864 #include "aout-target.h"