Eliminate "int8_type", "int16_type", "int32_type", and their
[deliverable/binutils-gdb.git] / bfd / hp300hpux.c
1 /* BFD backend for hp-ux 9000/300
2 Copyright (C) 1990-1991 Free Software Foundation, Inc.
3 Written by Glenn Engel.
4
5 This file is part of BFD, the Binary File Descriptor library.
6
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.
11
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.
16
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
20
21 /*
22
23 hpux native ------------> | |
24 | hp300hpux bfd | ----------> hpux w/gnu ext
25 hpux w/gnu extension ----> | |
26
27
28 Support for the 9000/[34]00 has several limitations.
29 1. Shared libraries are not supported.
30 2. The output format from this bfd is not usable by native tools.
31 3. Core files are not supported (yet).
32
33 The primary motivation for writing this bfd was to allow use of
34 gdb and gcc for host based debugging and not to mimic the hp-ux tools
35 in every detail. This leads to a significant simplification of the
36 code and a leap in performance. The decision to not output hp native
37 compatible objects was further strengthened by the fact that the richness
38 of the gcc compiled objects could not be represented without loss of
39 information. For example, while the hp format supports the concept of
40 secondary symbols, it does not support indirect symbols. Another
41 reason is to maintain backwards compatibility with older implementations
42 of gcc on hpux which used 'hpxt' to translate .a and .o files into a
43 format which could be readily understood by the gnu linker and gdb.
44 This allows reading hp secondary symbols and converting them into
45 indirect symbols but the reverse it not always possible.
46
47 Another example of differences is that the hp format stores symbol offsets
48 in the object code while the gnu utilities use a field in the
49 relocation record for this. To support the hp native format, the object
50 code would need to be patched with the offsets when producing .o files.
51
52 The basic technique taken in this implementation is to #include the code
53 from aoutx.h and aout-target.h with appropriate #defines to override
54 code where a unique implementation is needed:
55
56 {
57 #define a bunch of stuff
58 #include <aoutx.h>
59
60 implement a bunch of functions
61
62 #include "aout-target.h"
63 }
64
65 The hp symbol table is a bit different than other a.out targets. Instead
66 of having an array of nlist items and an array of strings, hp's format
67 has them mixed together in one structure. In addition, the strings are
68 not null terminated. It looks something like this:
69
70 nlist element 1
71 string1
72 nlist element 2
73 string2
74 ...
75
76 The whole symbol table is read as one chunk and then we march thru it
77 and convert it to canonical form. As we march thru the table, we copy
78 the nlist data into the internal form and we compact the strings and null
79 terminate them, using storage from the already allocated symbol table:
80
81 string1
82 null
83 string2
84 null
85 */
86
87 /* @@ Is this really so different from normal a.out that it needs to include
88 aoutx.h? We should go through this file sometime and see what can be made
89 more dependent on aout32.o and what might need to be broken off and accessed
90 through the backend_data field. Or, maybe we really do need such a
91 completely separate implementation. I don't have time to investigate this
92 much further right now. [raeburn:19930428.2124EST] */
93 /* @@ Also, note that there wind up being two versions of some routines, with
94 different names, only one of which actually gets used. For example:
95 slurp_symbol_table
96 swap_std_reloc_in
97 slurp_reloc_table
98 get_symtab
99 get_symtab_upper_bound
100 canonicalize_reloc
101 mkobject
102 This should also be fixed. */
103
104 #define ARCH 32
105 #define TARGETNAME "a.out-hp300hpux"
106 #define MY(OP) CAT(hp300hpux_,OP)
107
108 #define external_exec hp300hpux_exec_bytes
109 #define external_nlist hp300hpux_nlist_bytes
110
111 #include "aout/hp300hpux.h"
112
113 /* define these so we can compile unused routines in aoutx.h */
114 #define e_strx e_shlib
115 #define e_other e_length
116 #define e_desc e_almod
117
118 #define AR_PAD_CHAR '/'
119 #define TARGET_IS_BIG_ENDIAN_P
120 #define DEFAULT_ARCH bfd_arch_m68k
121
122 #define MY_get_section_contents aout_32_get_section_contents
123 #define MY_close_and_cleanup aout_32_close_and_cleanup
124 #define MY_slurp_armap bfd_slurp_bsd_armap_f2
125
126 /***********************************************/
127 /* provide overrides for routines in this file */
128 /***********************************************/
129 #define MY_get_symtab MY(get_symtab)
130 #define MY_get_symtab_upper_bound MY(get_symtab_upper_bound)
131 #define MY_canonicalize_reloc MY(canonicalize_reloc)
132 #define MY_write_object_contents MY(write_object_contents)
133
134 #define hp300hpux_write_syms aout_32_write_syms
135
136 #define MY_callback MY(callback)
137
138 #define NAME_swap_exec_header_in NAME(hp300hpux_32_,swap_exec_header_in)
139
140 #define HP_SYMTYPE_UNDEFINED 0x00
141 #define HP_SYMTYPE_ABSOLUTE 0x01
142 #define HP_SYMTYPE_TEXT 0x02
143 #define HP_SYMTYPE_DATA 0x03
144 #define HP_SYMTYPE_BSS 0x04
145 #define HP_SYMTYPE_COMMON 0x05
146
147 #define HP_SYMTYPE_TYPE 0x0F
148 #define HP_SYMTYPE_FILENAME 0x1F
149
150 #define HP_SYMTYPE_ALIGN 0x10
151 #define HP_SYMTYPE_EXTERNAL 0x20
152 #define HP_SECONDARY_SYMBOL 0x40
153
154 /* RELOCATION DEFINITIONS */
155 #define HP_RSEGMENT_TEXT 0x00
156 #define HP_RSEGMENT_DATA 0x01
157 #define HP_RSEGMENT_BSS 0x02
158 #define HP_RSEGMENT_EXTERNAL 0x03
159 #define HP_RSEGMENT_PCREL 0x04
160 #define HP_RSEGMENT_RDLT 0x05
161 #define HP_RSEGMENT_RPLT 0x06
162 #define HP_RSEGMENT_NOOP 0x3F
163
164 #define HP_RLENGTH_BYTE 0x00
165 #define HP_RLENGTH_WORD 0x01
166 #define HP_RLENGTH_LONG 0x02
167 #define HP_RLENGTH_ALIGN 0x03
168
169 #define NAME(x,y) CAT3(hp300hpux,_32_,y)
170 #include "aoutx.h"
171
172 /* Since the hpux symbol table has nlist elements interspersed with
173 strings and we need to insert som strings for secondary symbols, we
174 give ourselves a little extra padding up front to account for
175 this. Note that for each non-secondary symbol we process, we gain
176 9 bytes of space for the discarded nlist element (one byte used for
177 null). SYM_EXTRA_BYTES is the extra space. */
178 #define SYM_EXTRA_BYTES 1024
179
180 /* Set parameters about this a.out file that are machine-dependent.
181 This routine is called from some_aout_object_p just before it returns. */
182 static bfd_target *
183 DEFUN(MY(callback),(abfd),
184 bfd *abfd)
185 {
186 struct internal_exec *execp = exec_hdr (abfd);
187
188 /* Calculate the file positions of the parts of a newly read aout header */
189 obj_textsec (abfd)->_raw_size = N_TXTSIZE(*execp);
190
191 /* The virtual memory addresses of the sections */
192 obj_textsec (abfd)->vma = N_TXTADDR(*execp);
193 obj_datasec (abfd)->vma = N_DATADDR(*execp);
194 obj_bsssec (abfd)->vma = N_BSSADDR(*execp);
195
196 /* The file offsets of the sections */
197 obj_textsec (abfd)->filepos = N_TXTOFF (*execp);
198 obj_datasec (abfd)->filepos = N_DATOFF (*execp);
199
200 /* The file offsets of the relocation info */
201 obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp);
202 obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp);
203
204 /* The file offsets of the string table and symbol table. */
205 obj_sym_filepos (abfd) = N_SYMOFF (*execp);
206 obj_str_filepos (abfd) = N_STROFF (*execp);
207
208 /* Determine the architecture and machine type of the object file. */
209 #ifdef SET_ARCH_MACH
210 SET_ARCH_MACH(abfd, *execp);
211 #else
212 bfd_default_set_arch_mach(abfd, DEFAULT_ARCH, 0);
213 #endif
214
215
216 if (obj_aout_subformat(abfd) == gnu_encap_format)
217 {
218 /* The file offsets of the relocation info */
219 obj_textsec (abfd)->rel_filepos = N_GNU_TRELOFF(*execp);
220 obj_datasec (abfd)->rel_filepos = N_GNU_DRELOFF(*execp);
221
222 /* The file offsets of the string table and symbol table. */
223 obj_sym_filepos (abfd) = N_GNU_SYMOFF(*execp);
224 obj_str_filepos (abfd) = (obj_sym_filepos (abfd) + execp->a_syms);
225
226 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
227 bfd_get_symcount (abfd) = execp->a_syms / 12;
228 obj_symbol_entry_size (abfd) = 12;
229 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
230 }
231
232 return abfd->xvec;
233 }
234
235 static boolean
236 DEFUN(MY(write_object_contents),(abfd),
237 bfd *abfd)
238 {
239 struct external_exec exec_bytes;
240 struct internal_exec *execp = exec_hdr (abfd);
241 bfd_size_type text_size; /* dummy vars */
242 file_ptr text_end;
243
244 memset (&exec_bytes, 0, sizeof (exec_bytes));
245 #if CHOOSE_RELOC_SIZE
246 CHOOSE_RELOC_SIZE(abfd);
247 #else
248 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
249 #endif
250
251 if (adata(abfd).magic == undecided_magic)
252 NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end);
253 execp->a_syms = 0;
254
255 execp->a_entry = bfd_get_start_address (abfd);
256
257 execp->a_trsize = ((obj_textsec (abfd)->reloc_count) *
258 obj_reloc_entry_size (abfd));
259 execp->a_drsize = ((obj_datasec (abfd)->reloc_count) *
260 obj_reloc_entry_size (abfd));
261
262 N_SET_MACHTYPE(*execp, 0xc);
263 N_SET_FLAGS (*execp, 0x2);
264
265 NAME(aout,swap_exec_header_out) (abfd, execp, &exec_bytes);
266
267 /* update fields not covered by default swap_exec_header_out */
268
269 /* this is really the sym table size but we store it in drelocs */
270 bfd_h_put_32 (abfd, bfd_get_symcount (abfd) * 12, exec_bytes.e_drelocs);
271
272 bfd_seek (abfd, 0L, false);
273 bfd_write ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd);
274
275 /* Now write out reloc info, followed by syms and strings */
276
277 if (bfd_get_symcount (abfd) != 0)
278 {
279 bfd_seek (abfd, (long)(N_TRELOFF(*execp)), false);
280
281 if (!NAME(aout,squirt_out_relocs) (abfd, obj_textsec (abfd))) return false;
282 bfd_seek (abfd, (long)(N_DRELOFF(*execp)), false);
283
284 if (!NAME(aout,squirt_out_relocs)(abfd, obj_datasec (abfd))) return false;
285 }
286
287 MY(write_syms)(abfd);
288 return true;
289 }
290
291 /* convert the hp symbol type to be the same as aout64.h usage so we */
292 /* can piggyback routines in aoutx.h. */
293
294 static void
295 DEFUN(convert_sym_type,(sym_pointer, cache_ptr, abfd),
296 struct external_nlist *sym_pointer AND
297 aout_symbol_type *cache_ptr AND
298 bfd *abfd)
299 {
300 int name_type;
301 int new_type;
302
303 name_type = (cache_ptr->type);
304 new_type = 0;
305
306 if ((name_type & HP_SYMTYPE_ALIGN) != 0)
307 {
308 /* iou_error ("aligned symbol encountered: %s", name);*/
309 name_type = 0;
310 }
311
312 if (name_type == HP_SYMTYPE_FILENAME)
313 new_type = N_FN;
314 else
315 {
316 switch (name_type & HP_SYMTYPE_TYPE)
317 {
318 case HP_SYMTYPE_UNDEFINED:
319 new_type = N_UNDF;
320 break;
321
322 case HP_SYMTYPE_ABSOLUTE:
323 new_type = N_ABS;
324 break;
325
326 case HP_SYMTYPE_TEXT:
327 new_type = N_TEXT;
328 break;
329
330 case HP_SYMTYPE_DATA:
331 new_type = N_DATA;
332 break;
333
334 case HP_SYMTYPE_BSS:
335 new_type = N_BSS;
336 break;
337
338 case HP_SYMTYPE_COMMON:
339 new_type = N_COMM;
340 break;
341
342 default:
343 printf ("unknown symbol type encountered: %x", name_type);
344 }
345 if (name_type & HP_SYMTYPE_EXTERNAL)
346 new_type |= N_EXT;
347
348 if (name_type & HP_SECONDARY_SYMBOL)
349 new_type = (new_type & ~N_TYPE) | N_INDR;
350 }
351 cache_ptr->type = new_type;
352
353 }
354
355
356 /*
357 DESCRIPTION
358 Swaps the information in an executable header taken from a raw
359 byte stream memory image, into the internal exec_header
360 structure.
361 */
362
363 void
364 DEFUN(NAME(aout,swap_exec_header_in),(abfd, raw_bytes, execp),
365 bfd *abfd AND
366 struct external_exec *raw_bytes AND
367 struct internal_exec *execp)
368 {
369 struct external_exec *bytes = (struct external_exec *)raw_bytes;
370
371 /* The internal_exec structure has some fields that are unused in this
372 configuration (IE for i960), so ensure that all such uninitialized
373 fields are zero'd out. There are places where two of these structs
374 are memcmp'd, and thus the contents do matter. */
375 memset (execp, 0, sizeof (struct internal_exec));
376 /* Now fill in fields in the execp, from the bytes in the raw data. */
377 execp->a_info = bfd_h_get_32 (abfd, bytes->e_info);
378 execp->a_text = GET_WORD (abfd, bytes->e_text);
379 execp->a_data = GET_WORD (abfd, bytes->e_data);
380 execp->a_bss = GET_WORD (abfd, bytes->e_bss);
381 execp->a_syms = GET_WORD (abfd, bytes->e_syms);
382 execp->a_entry = GET_WORD (abfd, bytes->e_entry);
383 execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
384 execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
385
386 /***************************************************************/
387 /* check the header to see if it was generated by a bfd output */
388 /* this is detected rather bizarely by requiring a bunch of */
389 /* header fields to be zero and an old unused field (now used) */
390 /* to be set. */
391 /***************************************************************/
392 do
393 {
394 long syms;
395 struct aout_data_struct *rawptr;
396 if (bfd_h_get_32 (abfd, bytes->e_passize) != 0) break;
397 if (bfd_h_get_32 (abfd, bytes->e_syms) != 0) break;
398 if (bfd_h_get_32 (abfd, bytes->e_supsize) != 0) break;
399
400 syms = bfd_h_get_32 (abfd, bytes->e_drelocs);
401 if (syms == 0) break;
402
403 /* OK, we've passed the test as best as we can determine */
404 execp->a_syms = syms;
405
406 /* allocate storage for where we will store this result */
407 rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, sizeof (*rawptr));
408
409 if (rawptr == NULL) {
410 bfd_error = no_memory;
411 return;
412 }
413 abfd->tdata.aout_data = rawptr;
414 obj_aout_subformat(abfd) = gnu_encap_format;
415 } while (0);
416 }
417
418
419 /* The hp symbol table is a bit different than other a.out targets. Instead
420 of having an array of nlist items and an array of strings, hp's format
421 has them mixed together in one structure. In addition, the strings are
422 not null terminated. It looks something like this:
423
424 nlist element 1
425 string1
426 nlist element 2
427 string2
428 ...
429
430 The whole symbol table is read as one chunk and then we march thru it
431 and convert it to canonical form. As we march thru the table, we copy
432 the nlist data into the internal form and we compact the strings and null
433 terminate them, using storage from the already allocated symbol table:
434
435 string1
436 null
437 string2
438 null
439 ...
440 */
441
442 boolean
443 DEFUN(MY(slurp_symbol_table),(abfd),
444 bfd *abfd)
445 {
446 bfd_size_type symbol_bytes;
447 struct external_nlist *syms;
448 struct external_nlist *sym_pointer;
449 struct external_nlist *sym_end;
450 char *strings;
451 aout_symbol_type *cached;
452 unsigned num_syms = 0;
453 unsigned num_secondary = 0;
454 int xxx = 0; /* for translate_from_native_sym_flags */
455
456 /* If there's no work to be done, don't do any */
457 if (obj_aout_symbols (abfd) != (aout_symbol_type *)NULL) return true;
458 symbol_bytes = exec_hdr(abfd)->a_syms;
459 if (symbol_bytes == 0) {
460 bfd_error = no_symbols;
461 return false;
462 }
463
464 strings = (char *) bfd_alloc(abfd,
465 symbol_bytes + SYM_EXTRA_BYTES);
466 syms = (struct external_nlist *) (strings + SYM_EXTRA_BYTES);
467 bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET);
468 if (bfd_read ((PTR)syms, symbol_bytes, 1, abfd) != symbol_bytes)
469 {
470 bfd_release (abfd, syms);
471 return false;
472 }
473
474
475 sym_end = (struct external_nlist *) (((char *)syms) + symbol_bytes);
476
477 /* first, march thru the table and figure out how many symbols there are */
478 for (sym_pointer = syms; sym_pointer < sym_end; sym_pointer++, num_syms++)
479 {
480 if (bfd_get_8(abfd, sym_pointer->e_type) & HP_SECONDARY_SYMBOL)
481 num_secondary++;
482 /* skip over the embedded symbol. */
483 sym_pointer = (struct external_nlist *) (((char *)sym_pointer) +
484 sym_pointer->e_length[0]);
485 }
486
487 /* now that we know the symbol count, update the bfd header */
488 bfd_get_symcount (abfd) = num_syms+num_secondary;
489
490 cached = (aout_symbol_type *)
491 bfd_zalloc(abfd, (bfd_size_type)(bfd_get_symcount (abfd) *
492 sizeof(aout_symbol_type)));
493
494 /* as we march thru the hp symbol table, convert it into a list of
495 null terminated strings to hold the symbol names. Make sure any
496 assignment to the strings pointer is done after we're thru using
497 the nlist so we don't overwrite anything important. */
498 num_secondary = 0;
499
500 /* OK, now walk the new symtable, cacheing symbol properties */
501 {
502 aout_symbol_type *cache_ptr = cached;
503 aout_symbol_type cache_save;
504 /* Run through table and copy values */
505 for (sym_pointer = syms, cache_ptr = cached;
506 sym_pointer < sym_end; sym_pointer++, cache_ptr++)
507 {
508 unsigned int length;
509 cache_ptr->symbol.the_bfd = abfd;
510 cache_ptr->symbol.value = GET_SWORD(abfd, sym_pointer->e_value);
511 cache_ptr->desc = bfd_get_16(abfd, sym_pointer->e_almod);
512 cache_ptr->type = bfd_get_8(abfd, sym_pointer->e_type);
513 cache_ptr->symbol.udata = 0;
514 length = bfd_get_8(abfd, sym_pointer->e_length);
515 cache_ptr->other = length; /* other not used, save length here */
516
517 cache_save = *cache_ptr;
518 convert_sym_type(sym_pointer, cache_ptr, abfd);
519 translate_from_native_sym_flags (sym_pointer, cache_ptr, abfd,
520 &xxx);
521
522 /********************************************************/
523 /* for hpux, the 'lenght' value indicates the length of */
524 /* the symbol name which follows the nlist entry. */
525 /********************************************************/
526 if (length)
527 {
528 /**************************************************************/
529 /* the hp string is not null terminated so we create a new one*/
530 /* by copying the string to overlap the just vacated nlist */
531 /* structure before it in memory. */
532 /**************************************************************/
533 cache_ptr->symbol.name = strings;
534 memcpy(strings, sym_pointer+1, length);
535 strings[length] = '\0';
536 strings += length + 1;
537 }
538 else
539 cache_ptr->symbol.name = (char *)NULL;
540
541 /**********************************************************/
542 /* this is a bit of a kludge, but a secondary hp symbol */
543 /* gets translated into a gnu indirect symbol. When this */
544 /* happens, we need to create a "dummy" record to which */
545 /* we can point the indirect symbol to. */
546 /**********************************************************/
547 if ((cache_ptr->type | N_EXT) == (N_INDR | N_EXT))
548 {
549 aout_symbol_type *cache_ptr2 = cached + num_syms+num_secondary;
550
551 num_secondary++;
552
553 /* aoutx.h assumes the "next" value is the indirect sym */
554 /* since we don't want to disturb the order by inserting */
555 /* a new symbol, we tack on the created secondary syms */
556 /* at the end. */
557 cache_ptr->symbol.value = (bfd_vma)(cache_ptr2);
558 *cache_ptr2 = cache_save;
559 cache_ptr2->symbol.name = strings;
560 memcpy(strings, cache_ptr->symbol.name, length);
561 strcpy(strings+length,":secondry"); /* 9 max chars + null */
562 strings += length+10;
563 cache_ptr2->type &= ~HP_SECONDARY_SYMBOL; /* clear secondary */
564 convert_sym_type(sym_pointer, cache_ptr2, abfd);
565 translate_from_native_sym_flags (sym_pointer, cache_ptr2, abfd,
566 &xxx);
567 }
568
569 /* skip over the embedded symbol. */
570 sym_pointer = (struct external_nlist *) (((char *)sym_pointer) +
571 length);
572 }
573 }
574
575 obj_aout_symbols (abfd) = cached;
576
577 return true;
578 }
579
580
581
582 void
583 DEFUN(MY(swap_std_reloc_in), (abfd, bytes, cache_ptr, symbols),
584 bfd *abfd AND
585 struct hp300hpux_reloc *bytes AND
586 arelent *cache_ptr AND
587 asymbol **symbols)
588 {
589 int r_index;
590 int r_extern = 0;
591 unsigned int r_length;
592 int r_pcrel = 0;
593 int r_baserel = 0, r_jmptable = 0, r_relative = 0;
594 struct aoutdata *su = &(abfd->tdata.aout_data->a);
595
596 cache_ptr->address = bfd_h_get_32 (abfd, bytes->r_address);
597 r_index = bfd_h_get_16(abfd, bytes->r_index);
598
599 switch (bytes->r_type[0])
600 {
601 case HP_RSEGMENT_TEXT:
602 r_index = N_TEXT;
603 break;
604 case HP_RSEGMENT_DATA:
605 r_index = N_DATA;
606 break;
607 case HP_RSEGMENT_BSS:
608 r_index = N_BSS;
609 break;
610 case HP_RSEGMENT_EXTERNAL:
611 r_extern = 1;
612 break;
613 case HP_RSEGMENT_PCREL:
614 r_extern = 1;
615 r_pcrel = 1;
616 break;
617 case HP_RSEGMENT_RDLT:
618 break;
619 case HP_RSEGMENT_RPLT:
620 break;
621 case HP_RSEGMENT_NOOP:
622 break;
623 default:
624 printf
625 ("illegal relocation segment type: %x\n", (bytes->r_type[0]));
626 }
627
628 switch (bytes->r_length[0])
629 {
630 case HP_RLENGTH_BYTE:
631 r_length = 0;
632 break;
633 case HP_RLENGTH_WORD:
634 r_length = 1;
635 break;
636 case HP_RLENGTH_LONG:
637 r_length = 2;
638 break;
639 default:
640 printf("illegal relocation length: %x\n",bytes->r_length[0] );
641 }
642
643 cache_ptr->howto = howto_table_std + r_length + 4 * r_pcrel;
644 /* FIXME-soon: Roll baserel, jmptable, relative bits into howto setting */
645
646 /* This macro uses the r_index value computed above */
647 if (r_pcrel && r_extern)
648 {
649 /* The GNU linker assumes any offset from beginning of section */
650 /* is already incorporated into the image while the HP linker */
651 /* adds this in later. Add it in now... */
652 MOVE_ADDRESS( - cache_ptr->address);
653 }
654 else
655 {
656 MOVE_ADDRESS(0);
657 }
658 }
659
660 boolean
661 DEFUN(MY(slurp_reloc_table),(abfd, asect, symbols),
662 bfd *abfd AND
663 sec_ptr asect AND
664 asymbol **symbols)
665 {
666 unsigned int count;
667 bfd_size_type reloc_size;
668 PTR relocs;
669 arelent *reloc_cache;
670 size_t each_size;
671 struct hp300hpux_reloc *rptr;
672 unsigned int counter;
673 arelent *cache_ptr;
674
675 if (asect->relocation) return true;
676
677 if (asect->flags & SEC_CONSTRUCTOR) return true;
678
679 if (asect == obj_datasec (abfd)) {
680 reloc_size = exec_hdr(abfd)->a_drsize;
681 goto doit;
682 }
683
684 if (asect == obj_textsec (abfd)) {
685 reloc_size = exec_hdr(abfd)->a_trsize;
686 goto doit;
687 }
688
689 bfd_error = invalid_operation;
690 return false;
691
692 doit:
693 bfd_seek (abfd, asect->rel_filepos, SEEK_SET);
694 each_size = obj_reloc_entry_size (abfd);
695
696 count = reloc_size / each_size;
697
698
699 reloc_cache = (arelent *) bfd_zalloc (abfd, (size_t)(count * sizeof
700 (arelent)));
701 if (!reloc_cache) {
702 nomem:
703 bfd_error = no_memory;
704 return false;
705 }
706
707 relocs = (PTR) bfd_alloc (abfd, reloc_size);
708 if (!relocs) {
709 bfd_release (abfd, reloc_cache);
710 goto nomem;
711 }
712
713 if (bfd_read (relocs, 1, reloc_size, abfd) != reloc_size) {
714 bfd_release (abfd, relocs);
715 bfd_release (abfd, reloc_cache);
716 bfd_error = system_call_error;
717 return false;
718 }
719
720 rptr = (struct hp300hpux_reloc*) relocs;
721 counter = 0;
722 cache_ptr = reloc_cache;
723
724 for (; counter < count; counter++, rptr++, cache_ptr++) {
725 MY(swap_std_reloc_in)(abfd, rptr, cache_ptr, symbols);
726 }
727
728
729 bfd_release (abfd,relocs);
730 asect->relocation = reloc_cache;
731 asect->reloc_count = count;
732 return true;
733 }
734
735
736 /************************************************************************/
737 /* The following functions are identical to functions in aoutx.h except */
738 /* they refer to MY(func) rather than NAME(aout,func) and they also */
739 /* call aout_32 versions if the input file was generated by gcc */
740 /************************************************************************/
741
742 unsigned int aout_32_get_symtab PARAMS((bfd *abfd, asymbol **location));
743 unsigned int aout_32_get_symtab_upper_bound PARAMS ((bfd *abfd));
744
745 unsigned int aout_32_canonicalize_reloc PARAMS((bfd *abfd, sec_ptr section,
746 arelent **relptr,
747 asymbol **symbols));
748
749 unsigned int
750 DEFUN(MY(get_symtab),(abfd, location),
751 bfd *abfd AND
752 asymbol **location)
753 {
754 unsigned int counter = 0;
755 aout_symbol_type *symbase;
756
757 if (obj_aout_subformat(abfd) == gnu_encap_format)
758 return aout_32_get_symtab(abfd,location);
759
760 if (!MY(slurp_symbol_table)(abfd)) return 0;
761
762 for (symbase = obj_aout_symbols(abfd); counter++ < bfd_get_symcount (abfd);)
763 *(location++) = (asymbol *)( symbase++);
764 *location++ =0;
765 return bfd_get_symcount (abfd);
766 }
767
768 unsigned int
769 DEFUN(MY(get_symtab_upper_bound),(abfd),
770 bfd *abfd)
771 {
772 if (obj_aout_subformat(abfd) == gnu_encap_format)
773 return aout_32_get_symtab_upper_bound(abfd);
774 if (!MY(slurp_symbol_table)(abfd)) return 0;
775
776 return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *));
777 }
778
779
780
781
782 unsigned int
783 DEFUN(MY(canonicalize_reloc),(abfd, section, relptr, symbols),
784 bfd *abfd AND
785 sec_ptr section AND
786 arelent **relptr AND
787 asymbol **symbols)
788 {
789 arelent *tblptr = section->relocation;
790 unsigned int count;
791 if (obj_aout_subformat(abfd) == gnu_encap_format)
792 return aout_32_canonicalize_reloc(abfd,section,relptr,symbols);
793
794 if (!(tblptr || MY(slurp_reloc_table)(abfd, section, symbols)))
795 return 0;
796
797 if (section->flags & SEC_CONSTRUCTOR) {
798 arelent_chain *chain = section->constructor_chain;
799 for (count = 0; count < section->reloc_count; count ++) {
800 *relptr ++ = &chain->relent;
801 chain = chain->next;
802 }
803 }
804 else {
805 tblptr = section->relocation;
806 if (!tblptr) return 0;
807
808 for (count = 0; count++ < section->reloc_count;)
809 {
810 *relptr++ = tblptr++;
811 }
812 }
813 *relptr = 0;
814
815 return section->reloc_count;
816 }
817
818
819 #include "aout-target.h"
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