source: trunk/binutils/bfd/pef.c@ 2946

Last change on this file since 2946 was 607, checked in by bird, 22 years ago

Initial revision
  • Property cvs2svn:cvs-rev set to 1.1
  • Property svn:eol-style set to native
  • Property svn:executable set to *
File size: 33.9 KB
Line 
1/* PEF support for BFD.
2 Copyright 1999, 2000, 2001, 2002
3 Free Software Foundation, Inc.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
20
21#include <ctype.h>
22
23#include "pef.h"
24#include "pef-traceback.h"
25
26#include "bfd.h"
27#include "sysdep.h"
28#include "libbfd.h"
29
30#include "libiberty.h"
31
32#ifndef BFD_IO_FUNCS
33#define BFD_IO_FUNCS 0
34#endif
35
36#define bfd_pef_close_and_cleanup _bfd_generic_close_and_cleanup
37#define bfd_pef_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
38#define bfd_pef_new_section_hook _bfd_generic_new_section_hook
39#define bfd_pef_bfd_is_local_label_name bfd_generic_is_local_label_name
40#define bfd_pef_get_lineno _bfd_nosymbols_get_lineno
41#define bfd_pef_find_nearest_line _bfd_nosymbols_find_nearest_line
42#define bfd_pef_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
43#define bfd_pef_read_minisymbols _bfd_generic_read_minisymbols
44#define bfd_pef_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
45
46#define bfd_pef_get_reloc_upper_bound _bfd_norelocs_get_reloc_upper_bound
47#define bfd_pef_canonicalize_reloc _bfd_norelocs_canonicalize_reloc
48#define bfd_pef_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
49
50#define bfd_pef_set_arch_mach _bfd_generic_set_arch_mach
51
52#define bfd_pef_get_section_contents _bfd_generic_get_section_contents
53#define bfd_pef_set_section_contents _bfd_generic_set_section_contents
54
55#define bfd_pef_bfd_get_relocated_section_contents \
56 bfd_generic_get_relocated_section_contents
57#define bfd_pef_bfd_relax_section bfd_generic_relax_section
58#define bfd_pef_bfd_gc_sections bfd_generic_gc_sections
59#define bfd_pef_bfd_merge_sections bfd_generic_merge_sections
60#define bfd_pef_bfd_discard_group bfd_generic_discard_group
61#define bfd_pef_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
62#define bfd_pef_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
63#define bfd_pef_bfd_link_add_symbols _bfd_generic_link_add_symbols
64#define bfd_pef_bfd_link_just_syms _bfd_generic_link_just_syms
65#define bfd_pef_bfd_final_link _bfd_generic_final_link
66#define bfd_pef_bfd_link_split_section _bfd_generic_link_split_section
67#define bfd_pef_get_section_contents_in_window \
68 _bfd_generic_get_section_contents_in_window
69
70static void bfd_pef_print_symbol
71PARAMS ((bfd *abfd, PTR afile, asymbol *symbol, bfd_print_symbol_type how));
72static void bfd_pef_convert_architecture
73PARAMS ((unsigned long architecture,
74 enum bfd_architecture *type, unsigned long *subtype));
75static bfd_boolean bfd_pef_mkobject PARAMS ((bfd *abfd));
76static int bfd_pef_parse_traceback_table
77PARAMS ((bfd *abfd, asection *section, unsigned char *buf,
78 size_t len, size_t pos, asymbol *sym, FILE *file));
79static const char *bfd_pef_section_name PARAMS ((bfd_pef_section *section));
80static unsigned long bfd_pef_section_flags PARAMS ((bfd_pef_section *section));
81static asection *bfd_pef_make_bfd_section
82PARAMS ((bfd *abfd, bfd_pef_section *section));
83static int bfd_pef_read_header PARAMS ((bfd *abfd, bfd_pef_header *header));
84static const bfd_target *bfd_pef_object_p PARAMS ((bfd *));
85static int bfd_pef_parse_traceback_tables
86PARAMS ((bfd *abfd, asection *sec, unsigned char *buf,
87 size_t len, long *nsym, asymbol **csym));
88static int bfd_pef_parse_function_stub
89PARAMS ((bfd *abfd, unsigned char *buf, size_t len, unsigned long *offset));
90static int bfd_pef_parse_function_stubs
91PARAMS ((bfd *abfd, asection *codesec, unsigned char *codebuf, size_t codelen,
92 unsigned char *loaderbuf, size_t loaderlen, unsigned long *nsym,
93 asymbol **csym));
94static long bfd_pef_parse_symbols PARAMS ((bfd *abfd, asymbol **csym));
95static long bfd_pef_count_symbols PARAMS ((bfd *abfd));
96static long bfd_pef_get_symtab_upper_bound PARAMS ((bfd *));
97static long bfd_pef_get_symtab PARAMS ((bfd *, asymbol **));
98static asymbol *bfd_pef_make_empty_symbol PARAMS ((bfd *));
99static void bfd_pef_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *));
100static int bfd_pef_sizeof_headers PARAMS ((bfd *, bfd_boolean));
101
102static int bfd_pef_xlib_read_header
103PARAMS ((bfd *abfd, bfd_pef_xlib_header *header));
104static int bfd_pef_xlib_scan PARAMS ((bfd *abfd, bfd_pef_xlib_header *header));
105static const bfd_target *bfd_pef_xlib_object_p PARAMS ((bfd *abfd));
106
107static void
108bfd_pef_print_symbol (abfd, afile, symbol, how)
109 bfd *abfd;
110 PTR afile;
111 asymbol *symbol;
112 bfd_print_symbol_type how;
113{
114 FILE *file = (FILE *) afile;
115 switch (how)
116 {
117 case bfd_print_symbol_name:
118 fprintf (file, "%s", symbol->name);
119 break;
120 default:
121 bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
122 fprintf (file, " %-5s %s", symbol->section->name, symbol->name);
123 if (strncmp (symbol->name, "__traceback_", strlen ("__traceback_")) == 0)
124 {
125 char *buf = alloca (symbol->udata.i);
126 size_t offset = symbol->value + 4;
127 size_t len = symbol->udata.i;
128 int ret;
129
130 bfd_get_section_contents (abfd, symbol->section, buf, offset, len);
131 ret = bfd_pef_parse_traceback_table (abfd, symbol->section, buf,
132 len, 0, NULL, file);
133 if (ret < 0)
134 fprintf (file, " [ERROR]");
135 }
136 }
137}
138
139static void
140bfd_pef_convert_architecture (architecture, type, subtype)
141 unsigned long architecture;
142 enum bfd_architecture *type;
143 unsigned long *subtype;
144{
145 const unsigned long ARCH_POWERPC = 0x70777063; /* 'pwpc' */
146 const unsigned long ARCH_M68K = 0x6d36386b; /* 'm68k' */
147
148 *subtype = bfd_arch_unknown;
149 *type = bfd_arch_unknown;
150
151 if (architecture == ARCH_POWERPC)
152 *type = bfd_arch_powerpc;
153 else if (architecture == ARCH_M68K)
154 *type = bfd_arch_m68k;
155}
156
157static bfd_boolean
158bfd_pef_mkobject (abfd)
159 bfd *abfd ATTRIBUTE_UNUSED;
160{
161 return TRUE;
162}
163
164static int
165bfd_pef_parse_traceback_table (abfd, section, buf, len, pos, sym, file)
166 bfd *abfd;
167 asection *section;
168 unsigned char *buf;
169 size_t len;
170 size_t pos;
171 asymbol *sym;
172 FILE *file;
173{
174 struct traceback_table table;
175 size_t offset;
176 const char *s;
177 asymbol tmpsymbol;
178
179 if (sym == NULL)
180 sym = &tmpsymbol;
181
182 sym->name = NULL;
183 sym->value = 0;
184 sym->the_bfd = abfd;
185 sym->section = section;
186 sym->flags = 0;
187 sym->udata.i = 0;
188
189 /* memcpy is fine since all fields are unsigned char */
190
191 if ((pos + 8) > len)
192 return -1;
193 memcpy (&table, buf + pos, 8);
194
195 /* calling code relies on returned symbols having a name and
196 correct offset */
197
198 if ((table.lang != TB_C) && (table.lang != TB_CPLUSPLUS))
199 return -1;
200
201 if (! (table.flags2 & TB_NAME_PRESENT))
202 return -1;
203
204 if (! table.flags1 & TB_HAS_TBOFF)
205 return -1;
206
207 offset = 8;
208
209 if ((table.flags5 & TB_FLOATPARAMS) || (table.fixedparams))
210 offset += 4;
211
212 if (table.flags1 & TB_HAS_TBOFF)
213 {
214 struct traceback_table_tboff off;
215
216 if ((pos + offset + 4) > len)
217 return -1;
218 off.tb_offset = bfd_getb32 (buf + pos + offset);
219 offset += 4;
220
221 /* need to subtract 4 because the offset includes the 0x0L
222 preceding the table */
223
224 if (file != NULL)
225 fprintf (file, " [offset = 0x%lx]", off.tb_offset);
226
227 if ((file == NULL) && ((off.tb_offset + 4) > (pos + offset)))
228 return -1;
229
230 sym->value = pos - off.tb_offset - 4;
231 }
232
233 if (table.flags2 & TB_INT_HNDL)
234 offset += 4;
235
236 if (table.flags1 & TB_HAS_CTL)
237 {
238 struct traceback_table_anchors anchors;
239
240 if ((pos + offset + 4) > len)
241 return -1;
242 anchors.ctl_info = bfd_getb32 (buf + pos + offset);
243 offset += 4;
244
245 if (anchors.ctl_info > 1024)
246 return -1;
247
248 offset += anchors.ctl_info * 4;
249 }
250
251 if (table.flags2 & TB_NAME_PRESENT)
252 {
253 struct traceback_table_routine name;
254 char *namebuf;
255
256 if ((pos + offset + 2) > len)
257 return -1;
258 name.name_len = bfd_getb16 (buf + pos + offset);
259 offset += 2;
260
261 if (name.name_len > 4096)
262 return -1;
263
264 if ((pos + offset + name.name_len) > len)
265 return -1;
266
267 namebuf = (char *) bfd_alloc (abfd, name.name_len + 1);
268 if (namebuf == NULL)
269 return -1;
270
271 memcpy (namebuf, buf + pos + offset, name.name_len);
272 namebuf[name.name_len] = '\0';
273
274 /* strip leading period inserted by compiler */
275 if (namebuf[0] == '.')
276 memmove (namebuf, namebuf + 1, name.name_len + 1);
277
278 sym->name = namebuf;
279
280 for (s = sym->name; (*s != '\0'); s++)
281 if (! isprint (*s))
282 return -1;
283
284 offset += name.name_len;
285 }
286
287 if (table.flags2 & TB_USES_ALLOCA)
288 offset += 4;
289
290 if (table.flags4 & TB_HAS_VEC_INFO)
291 offset += 4;
292
293 if (file != NULL)
294 fprintf (file, " [length = 0x%lx]", (long) offset);
295
296 return offset;
297}
298
299static const char *bfd_pef_section_name (section)
300 bfd_pef_section *section;
301{
302 switch (section->section_kind)
303 {
304 case BFD_PEF_SECTION_CODE: return "code";
305 case BFD_PEF_SECTION_UNPACKED_DATA: return "unpacked-data";
306 case BFD_PEF_SECTION_PACKED_DATA: return "packed-data";
307 case BFD_PEF_SECTION_CONSTANT: return "constant";
308 case BFD_PEF_SECTION_LOADER: return "loader";
309 case BFD_PEF_SECTION_DEBUG: return "debug";
310 case BFD_PEF_SECTION_EXEC_DATA: return "exec-data";
311 case BFD_PEF_SECTION_EXCEPTION: return "exception";
312 case BFD_PEF_SECTION_TRACEBACK: return "traceback";
313 default: return "unknown";
314 }
315}
316
317static unsigned long bfd_pef_section_flags (section)
318 bfd_pef_section *section;
319{
320 switch (section->section_kind)
321 {
322 case BFD_PEF_SECTION_CODE:
323 return SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE;
324 case BFD_PEF_SECTION_UNPACKED_DATA:
325 case BFD_PEF_SECTION_PACKED_DATA:
326 case BFD_PEF_SECTION_CONSTANT:
327 case BFD_PEF_SECTION_LOADER:
328 case BFD_PEF_SECTION_DEBUG:
329 case BFD_PEF_SECTION_EXEC_DATA:
330 case BFD_PEF_SECTION_EXCEPTION:
331 case BFD_PEF_SECTION_TRACEBACK:
332 default:
333 return SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC;
334 }
335}
336
337static asection *
338bfd_pef_make_bfd_section (abfd, section)
339 bfd *abfd;
340 bfd_pef_section *section;
341{
342 asection *bfdsec;
343 const char *name = bfd_pef_section_name (section);
344
345 bfdsec = bfd_make_section_anyway (abfd, name);
346 if (bfdsec == NULL)
347 return NULL;
348
349 bfdsec->vma = section->default_address + section->container_offset;
350 bfdsec->lma = section->default_address + section->container_offset;
351 bfdsec->_raw_size = section->container_length;
352 bfdsec->filepos = section->container_offset;
353 bfdsec->alignment_power = section->alignment;
354
355 bfdsec->flags = bfd_pef_section_flags (section);
356
357 return bfdsec;
358}
359
360int bfd_pef_parse_loader_header (abfd, buf, len, header)
361 bfd *abfd ATTRIBUTE_UNUSED;
362 unsigned char *buf;
363 size_t len;
364 bfd_pef_loader_header *header;
365{
366 BFD_ASSERT (len == 56);
367
368 header->main_section = bfd_getb32 (buf);
369 header->main_offset = bfd_getb32 (buf + 4);
370 header->init_section = bfd_getb32 (buf + 8);
371 header->init_offset = bfd_getb32 (buf + 12);
372 header->term_section = bfd_getb32 (buf + 16);
373 header->term_offset = bfd_getb32 (buf + 20);
374 header->imported_library_count = bfd_getb32 (buf + 24);
375 header->total_imported_symbol_count = bfd_getb32 (buf + 28);
376 header->reloc_section_count = bfd_getb32 (buf + 32);
377 header->reloc_instr_offset = bfd_getb32 (buf + 36);
378 header->loader_strings_offset = bfd_getb32 (buf + 40);
379 header->export_hash_offset = bfd_getb32 (buf + 44);
380 header->export_hash_table_power = bfd_getb32 (buf + 48);
381 header->exported_symbol_count = bfd_getb32 (buf + 52);
382
383 return 0;
384}
385
386int bfd_pef_parse_imported_library (abfd, buf, len, header)
387 bfd *abfd ATTRIBUTE_UNUSED;
388 unsigned char *buf;
389 size_t len;
390 bfd_pef_imported_library *header;
391{
392 BFD_ASSERT (len == 24);
393
394 header->name_offset = bfd_getb32 (buf);
395 header->old_implementation_version = bfd_getb32 (buf + 4);
396 header->current_version = bfd_getb32 (buf + 8);
397 header->imported_symbol_count = bfd_getb32 (buf + 12);
398 header->first_imported_symbol = bfd_getb32 (buf + 16);
399 header->options = buf[20];
400 header->reserved_a = buf[21];
401 header->reserved_b = bfd_getb16 (buf + 22);
402
403 return 0;
404}
405
406int bfd_pef_parse_imported_symbol (abfd, buf, len, symbol)
407 bfd *abfd ATTRIBUTE_UNUSED;
408 unsigned char *buf;
409 size_t len;
410 bfd_pef_imported_symbol *symbol;
411{
412 unsigned long value;
413
414 BFD_ASSERT (len == 4);
415
416 value = bfd_getb32 (buf);
417 symbol->class = value >> 24;
418 symbol->name = value & 0x00ffffff;
419
420 return 0;
421}
422
423int bfd_pef_scan_section (abfd, section)
424 bfd *abfd;
425 bfd_pef_section *section;
426{
427 unsigned char buf[28];
428
429 bfd_seek (abfd, section->header_offset, SEEK_SET);
430 if (bfd_bread ((PTR) buf, 28, abfd) != 28)
431 return -1;
432
433 section->name_offset = bfd_h_get_32 (abfd, buf);
434 section->default_address = bfd_h_get_32 (abfd, buf + 4);
435 section->total_length = bfd_h_get_32 (abfd, buf + 8);
436 section->unpacked_length = bfd_h_get_32 (abfd, buf + 12);
437 section->container_length = bfd_h_get_32 (abfd, buf + 16);
438 section->container_offset = bfd_h_get_32 (abfd, buf + 20);
439 section->section_kind = buf[24];
440 section->share_kind = buf[25];
441 section->alignment = buf[26];
442 section->reserved = buf[27];
443
444 section->bfd_section = bfd_pef_make_bfd_section (abfd, section);
445 if (section->bfd_section == NULL)
446 return -1;
447
448 return 0;
449}
450
451void
452bfd_pef_print_loader_header (abfd, header, file)
453 bfd *abfd ATTRIBUTE_UNUSED;
454 bfd_pef_loader_header *header;
455 FILE *file;
456{
457 fprintf (file, "main_section: %ld\n", header->main_section);
458 fprintf (file, "main_offset: %lu\n", header->main_offset);
459 fprintf (file, "init_section: %ld\n", header->init_section);
460 fprintf (file, "init_offset: %lu\n", header->init_offset);
461 fprintf (file, "term_section: %ld\n", header->term_section);
462 fprintf (file, "term_offset: %lu\n", header->term_offset);
463 fprintf (file, "imported_library_count: %lu\n",
464 header->imported_library_count);
465 fprintf (file, "total_imported_symbol_count: %lu\n",
466 header->total_imported_symbol_count);
467 fprintf (file, "reloc_section_count: %lu\n", header->reloc_section_count);
468 fprintf (file, "reloc_instr_offset: %lu\n", header->reloc_instr_offset);
469 fprintf (file, "loader_strings_offset: %lu\n",
470 header->loader_strings_offset);
471 fprintf (file, "export_hash_offset: %lu\n", header->export_hash_offset);
472 fprintf (file, "export_hash_table_power: %lu\n",
473 header->export_hash_table_power);
474 fprintf (file, "exported_symbol_count: %lu\n",
475 header->exported_symbol_count);
476}
477
478int
479bfd_pef_print_loader_section (abfd, file)
480 bfd *abfd;
481 FILE *file;
482{
483 bfd_pef_loader_header header;
484 asection *loadersec = NULL;
485 unsigned char *loaderbuf = NULL;
486 size_t loaderlen = 0;
487 int ret;
488
489 loadersec = bfd_get_section_by_name (abfd, "loader");
490 if (loadersec == NULL)
491 return -1;
492
493 loaderlen = bfd_section_size (abfd, loadersec);
494 loaderbuf = (unsigned char *) bfd_malloc (loaderlen);
495 if (bfd_seek (abfd, loadersec->filepos, SEEK_SET) < 0)
496 {
497 free (loaderbuf);
498 return -1;
499 }
500 if (bfd_bread ((PTR) loaderbuf, loaderlen, abfd) != loaderlen)
501 {
502 free (loaderbuf);
503 return -1;
504 }
505
506 if (loaderlen < 56)
507 {
508 free (loaderbuf);
509 return -1;
510 }
511 ret = bfd_pef_parse_loader_header (abfd, loaderbuf, 56, &header);
512 if (ret < 0)
513 {
514 free (loaderbuf);
515 return -1;
516 }
517
518 bfd_pef_print_loader_header (abfd, &header, file);
519 return 0;
520}
521
522int
523bfd_pef_scan_start_address (abfd)
524 bfd *abfd;
525{
526 bfd_pef_loader_header header;
527 asection *section;
528
529 asection *loadersec = NULL;
530 unsigned char *loaderbuf = NULL;
531 size_t loaderlen = 0;
532 int ret;
533
534 loadersec = bfd_get_section_by_name (abfd, "loader");
535 if (loadersec == NULL)
536 goto end;
537
538 loaderlen = bfd_section_size (abfd, loadersec);
539 loaderbuf = (unsigned char *) bfd_malloc (loaderlen);
540 if (bfd_seek (abfd, loadersec->filepos, SEEK_SET) < 0)
541 goto error;
542 if (bfd_bread ((PTR) loaderbuf, loaderlen, abfd) != loaderlen)
543 goto error;
544
545 if (loaderlen < 56)
546 goto error;
547 ret = bfd_pef_parse_loader_header (abfd, loaderbuf, 56, &header);
548 if (ret < 0)
549 goto error;
550
551 if (header.main_section < 0)
552 goto end;
553
554 for (section = abfd->sections; section != NULL; section = section->next)
555 if ((section->index + 1) == header.main_section)
556 break;
557
558 if (section == NULL)
559 goto error;
560
561 abfd->start_address = section->vma + header.main_offset;
562
563 end:
564 if (loaderbuf != NULL)
565 free (loaderbuf);
566 return 0;
567
568 error:
569 if (loaderbuf != NULL)
570 free (loaderbuf);
571 return -1;
572}
573
574int
575bfd_pef_scan (abfd, header, mdata)
576 bfd *abfd;
577 bfd_pef_header *header;
578 bfd_pef_data_struct *mdata;
579{
580 unsigned int i;
581 enum bfd_architecture cputype;
582 unsigned long cpusubtype;
583
584 mdata->header = *header;
585
586 bfd_pef_convert_architecture (header->architecture, &cputype, &cpusubtype);
587 if (cputype == bfd_arch_unknown)
588 {
589 fprintf (stderr, "bfd_pef_scan: unknown architecture 0x%lx\n",
590 header->architecture);
591 return -1;
592 }
593 bfd_set_arch_mach (abfd, cputype, cpusubtype);
594
595 mdata->header = *header;
596
597 abfd->flags = (abfd->xvec->object_flags
598 | (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS)));
599
600 if (header->section_count != 0)
601 {
602 mdata->sections =
603 ((bfd_pef_section *)
604 bfd_alloc (abfd, header->section_count * sizeof (bfd_pef_section)));
605
606 if (mdata->sections == NULL)
607 return -1;
608
609 for (i = 0; i < header->section_count; i++)
610 {
611 bfd_pef_section *cur = &mdata->sections[i];
612 cur->header_offset = 40 + (i * 28);
613 if (bfd_pef_scan_section (abfd, cur) < 0)
614 return -1;
615 }
616 }
617
618 if (bfd_pef_scan_start_address (abfd) < 0)
619 {
620#if 0
621 fprintf (stderr, "bfd_pef_scan: unable to scan start address: %s\n",
622 bfd_errmsg (bfd_get_error ()));
623 return -1;
624#endif
625 }
626
627 abfd->tdata.pef_data = mdata;
628
629 return 0;
630}
631
632static int
633bfd_pef_read_header (abfd, header)
634 bfd *abfd;
635 bfd_pef_header *header;
636{
637 unsigned char buf[40];
638
639 bfd_seek (abfd, 0, SEEK_SET);
640
641 if (bfd_bread ((PTR) buf, 40, abfd) != 40)
642 return -1;
643
644 header->tag1 = bfd_getb32 (buf);
645 header->tag2 = bfd_getb32 (buf + 4);
646 header->architecture = bfd_getb32 (buf + 8);
647 header->format_version = bfd_getb32 (buf + 12);
648 header->timestamp = bfd_getb32 (buf + 16);
649 header->old_definition_version = bfd_getb32 (buf + 20);
650 header->old_implementation_version = bfd_getb32 (buf + 24);
651 header->current_version = bfd_getb32 (buf + 28);
652 header->section_count = bfd_getb32 (buf + 32) + 1;
653 header->instantiated_section_count = bfd_getb32 (buf + 34);
654 header->reserved = bfd_getb32 (buf + 36);
655
656 return 0;
657}
658
659static const bfd_target *
660bfd_pef_object_p (abfd)
661 bfd *abfd;
662{
663 struct bfd_preserve preserve;
664 bfd_pef_header header;
665
666 preserve.marker = NULL;
667 if (bfd_pef_read_header (abfd, &header) != 0)
668 goto wrong;
669
670 if (header.tag1 != BFD_PEF_TAG1 || header.tag2 != BFD_PEF_TAG2)
671 goto wrong;
672
673 preserve.marker = bfd_zalloc (abfd, sizeof (bfd_pef_data_struct));
674 if (preserve.marker == NULL
675 || !bfd_preserve_save (abfd, &preserve))
676 goto fail;
677
678 if (bfd_pef_scan (abfd, &header,
679 (bfd_pef_data_struct *) preserve.marker) != 0)
680 goto wrong;
681
682 bfd_preserve_finish (abfd, &preserve);
683 return abfd->xvec;
684
685 wrong:
686 bfd_set_error (bfd_error_wrong_format);
687
688 fail:
689 if (preserve.marker != NULL)
690 bfd_preserve_restore (abfd, &preserve);
691 return NULL;
692}
693
694static int bfd_pef_parse_traceback_tables (abfd, sec, buf, len, nsym, csym)
695 bfd *abfd;
696 asection *sec;
697 unsigned char *buf;
698 size_t len;
699 long *nsym;
700 asymbol **csym;
701{
702 char *name;
703
704 asymbol function;
705 asymbol traceback;
706
707 const char *const tbprefix = "__traceback_";
708 size_t tbnamelen;
709
710 size_t pos = 0;
711 unsigned long count = 0;
712 int ret;
713
714 for (;;)
715 {
716 /* we're reading symbols two at a time */
717
718 if (csym && ((csym[count] == NULL) || (csym[count + 1] == NULL)))
719 break;
720
721 pos += 3;
722 pos -= (pos % 4);
723
724 while ((pos + 4) <= len)
725 {
726 if (bfd_getb32 (buf + pos) == 0)
727 break;
728 pos += 4;
729 }
730
731 if ((pos + 4) > len)
732 break;
733
734 ret = bfd_pef_parse_traceback_table (abfd, sec, buf, len, pos + 4,
735 &function, 0);
736 if (ret < 0)
737 {
738 /* skip over 0x0L to advance to next possible traceback table */
739 pos += 4;
740 continue;
741 }
742
743 BFD_ASSERT (function.name != NULL);
744
745 /* Don't bother to compute the name if we are just
746 counting symbols */
747
748 if (csym)
749 {
750 tbnamelen = strlen (tbprefix) + strlen (function.name);
751 name = bfd_alloc (abfd, tbnamelen + 1);
752 if (name == NULL)
753 {
754 bfd_release (abfd, (PTR) function.name);
755 function.name = NULL;
756 break;
757 }
758 snprintf (name, tbnamelen + 1, "%s%s", tbprefix, function.name);
759 traceback.name = name;
760 traceback.value = pos;
761 traceback.the_bfd = abfd;
762 traceback.section = sec;
763 traceback.flags = 0;
764 traceback.udata.i = ret;
765
766 *(csym[count]) = function;
767 *(csym[count + 1]) = traceback;
768 }
769
770 pos += ret;
771 count += 2;
772 }
773
774 *nsym = count;
775 return 0;
776}
777
778static int bfd_pef_parse_function_stub (abfd, buf, len, offset)
779 bfd *abfd ATTRIBUTE_UNUSED;
780 unsigned char *buf;
781 size_t len;
782 unsigned long *offset;
783{
784 BFD_ASSERT (len == 24);
785
786 if ((bfd_getb32 (buf) & 0xffff0000) != 0x81820000)
787 return -1;
788 if (bfd_getb32 (buf + 4) != 0x90410014)
789 return -1;
790 if (bfd_getb32 (buf + 8) != 0x800c0000)
791 return -1;
792 if (bfd_getb32 (buf + 12) != 0x804c0004)
793 return -1;
794 if (bfd_getb32 (buf + 16) != 0x7c0903a6)
795 return -1;
796 if (bfd_getb32 (buf + 20) != 0x4e800420)
797 return -1;
798
799 if (offset != NULL)
800 *offset = (bfd_getb32 (buf) & 0x0000ffff) / 4;
801
802 return 0;
803}
804
805static int bfd_pef_parse_function_stubs (abfd, codesec, codebuf, codelen,
806 loaderbuf, loaderlen, nsym, csym)
807 bfd *abfd;
808 asection *codesec;
809 unsigned char *codebuf;
810 size_t codelen;
811 unsigned char *loaderbuf;
812 size_t loaderlen;
813 unsigned long *nsym;
814 asymbol **csym;
815{
816 const char *const sprefix = "__stub_";
817
818 size_t codepos = 0;
819 unsigned long count = 0;
820
821 bfd_pef_loader_header header;
822 bfd_pef_imported_library *libraries = NULL;
823 bfd_pef_imported_symbol *imports = NULL;
824
825 unsigned long i;
826 int ret;
827
828 if (loaderlen < 56)
829 goto error;
830
831 ret = bfd_pef_parse_loader_header (abfd, loaderbuf, 56, &header);
832 if (ret < 0)
833 goto error;
834
835 libraries = (bfd_pef_imported_library *) bfd_malloc
836 (header.imported_library_count * sizeof (bfd_pef_imported_library));
837 imports = (bfd_pef_imported_symbol *) bfd_malloc
838 (header.total_imported_symbol_count * sizeof (bfd_pef_imported_symbol));
839
840 if (loaderlen < (56 + (header.imported_library_count * 24)))
841 goto error;
842 for (i = 0; i < header.imported_library_count; i++)
843 {
844 ret = bfd_pef_parse_imported_library
845 (abfd, loaderbuf + 56 + (i * 24), 24, &libraries[i]);
846 if (ret < 0)
847 goto error;
848 }
849
850 if (loaderlen < (56 + (header.imported_library_count * 24)
851 + (header.total_imported_symbol_count * 4)))
852 goto error;
853 for (i = 0; i < header.total_imported_symbol_count; i++)
854 {
855 ret = (bfd_pef_parse_imported_symbol
856 (abfd,
857 loaderbuf + 56 + (header.imported_library_count * 24) + (i * 4),
858 4, &imports[i]));
859 if (ret < 0)
860 goto error;
861 }
862
863 codepos = 0;
864
865 for (;;)
866 {
867 asymbol sym;
868 const char *symname;
869 char *name;
870 unsigned long index;
871 int ret;
872
873 if (csym && (csym[count] == NULL))
874 break;
875
876 codepos += 3;
877 codepos -= (codepos % 4);
878
879 while ((codepos + 4) <= codelen)
880 {
881 if ((bfd_getb32 (codebuf + codepos) & 0xffff0000) == 0x81820000)
882 break;
883 codepos += 4;
884 }
885
886 if ((codepos + 4) > codelen)
887 break;
888
889 ret = bfd_pef_parse_function_stub (abfd, codebuf + codepos, 24, &index);
890 if (ret < 0)
891 {
892 codepos += 24;
893 continue;
894 }
895
896 if (index >= header.total_imported_symbol_count)
897 {
898 codepos += 24;
899 continue;
900 }
901
902 {
903 size_t max, namelen;
904 const char *s;
905
906 if (loaderlen < (header.loader_strings_offset + imports[index].name))
907 goto error;
908
909 max = loaderlen - (header.loader_strings_offset + imports[index].name);
910 symname = loaderbuf + header.loader_strings_offset + imports[index].name;
911 namelen = 0;
912 for (s = symname; s < (symname + max); s++)
913 {
914 if (*s == '\0')
915 break;
916 if (! isprint (*s))
917 goto error;
918 namelen++;
919 }
920 if (*s != '\0')
921 goto error;
922
923 name = bfd_alloc (abfd, strlen (sprefix) + namelen + 1);
924 if (name == NULL)
925 break;
926
927 snprintf (name, strlen (sprefix) + namelen + 1, "%s%s",
928 sprefix, symname);
929 sym.name = name;
930 }
931
932 sym.value = codepos;
933 sym.the_bfd = abfd;
934 sym.section = codesec;
935 sym.flags = 0;
936 sym.udata.i = 0;
937
938 codepos += 24;
939
940 if (csym != NULL)
941 *(csym[count]) = sym;
942
943 count++;
944 }
945
946 goto end;
947
948 end:
949 if (libraries != NULL)
950 free (libraries);
951 if (imports != NULL)
952 free (imports);
953 *nsym = count;
954 return 0;
955
956 error:
957 if (libraries != NULL)
958 free (libraries);
959 if (imports != NULL)
960 free (imports);
961 *nsym = count;
962 return -1;
963}
964
965static long bfd_pef_parse_symbols (abfd, csym)
966 bfd *abfd;
967 asymbol **csym;
968{
969 unsigned long count = 0;
970
971 asection *codesec = NULL;
972 unsigned char *codebuf = NULL;
973 size_t codelen = 0;
974
975 asection *loadersec = NULL;
976 unsigned char *loaderbuf = NULL;
977 size_t loaderlen = 0;
978
979 codesec = bfd_get_section_by_name (abfd, "code");
980 if (codesec != NULL)
981 {
982 codelen = bfd_section_size (abfd, codesec);
983 codebuf = (unsigned char *) bfd_malloc (codelen);
984 if (bfd_seek (abfd, codesec->filepos, SEEK_SET) < 0)
985 goto end;
986 if (bfd_bread ((PTR) codebuf, codelen, abfd) != codelen)
987 goto end;
988 }
989
990 loadersec = bfd_get_section_by_name (abfd, "loader");
991 if (loadersec != NULL)
992 {
993 loaderlen = bfd_section_size (abfd, loadersec);
994 loaderbuf = (unsigned char *) bfd_malloc (loaderlen);
995 if (bfd_seek (abfd, loadersec->filepos, SEEK_SET) < 0)
996 goto end;
997 if (bfd_bread ((PTR) loaderbuf, loaderlen, abfd) != loaderlen)
998 goto end;
999 }
1000
1001 count = 0;
1002 if (codesec != NULL)
1003 {
1004 unsigned long ncount = 0;
1005 bfd_pef_parse_traceback_tables (abfd, codesec, codebuf, codelen,
1006 &ncount, csym);
1007 count += ncount;
1008 }
1009
1010 if ((codesec != NULL) && (loadersec != NULL))
1011 {
1012 unsigned long ncount = 0;
1013 bfd_pef_parse_function_stubs
1014 (abfd, codesec, codebuf, codelen, loaderbuf, loaderlen, &ncount,
1015 (csym != NULL) ? (csym + count) : NULL);
1016 count += ncount;
1017 }
1018
1019 if (csym != NULL)
1020 csym[count] = NULL;
1021
1022 end:
1023 if (codebuf != NULL)
1024 free (codebuf);
1025
1026 if (loaderbuf != NULL)
1027 free (loaderbuf);
1028
1029 return count;
1030}
1031
1032static long
1033bfd_pef_count_symbols (abfd)
1034 bfd *abfd;
1035{
1036 return bfd_pef_parse_symbols (abfd, NULL);
1037}
1038
1039static long
1040bfd_pef_get_symtab_upper_bound (abfd)
1041 bfd *abfd;
1042{
1043 long nsyms = bfd_pef_count_symbols (abfd);
1044 if (nsyms < 0)
1045 return nsyms;
1046 return ((nsyms + 1) * sizeof (asymbol *));
1047}
1048
1049static long
1050bfd_pef_get_symtab (abfd, alocation)
1051 bfd *abfd;
1052 asymbol **alocation;
1053{
1054 long i;
1055 asymbol *syms;
1056 long ret;
1057
1058 long nsyms = bfd_pef_count_symbols (abfd);
1059 if (nsyms < 0)
1060 return nsyms;
1061
1062 syms = bfd_alloc (abfd, nsyms * sizeof (asymbol));
1063 if (syms == NULL)
1064 return -1;
1065
1066 for (i = 0; i < nsyms; i++)
1067 alocation[i] = &syms[i];
1068
1069 alocation[nsyms] = NULL;
1070
1071 ret = bfd_pef_parse_symbols (abfd, alocation);
1072 if (ret != nsyms)
1073 return 0;
1074
1075 return ret;
1076}
1077
1078static asymbol *
1079bfd_pef_make_empty_symbol (abfd)
1080 bfd *abfd;
1081{
1082 return (asymbol *) bfd_alloc (abfd, sizeof (asymbol));
1083}
1084
1085static void
1086bfd_pef_get_symbol_info (abfd, symbol, ret)
1087 bfd *abfd ATTRIBUTE_UNUSED;
1088 asymbol *symbol;
1089 symbol_info *ret;
1090{
1091 bfd_symbol_info (symbol, ret);
1092}
1093
1094static int
1095bfd_pef_sizeof_headers (abfd, exec)
1096 bfd *abfd ATTRIBUTE_UNUSED;
1097 bfd_boolean exec ATTRIBUTE_UNUSED;
1098{
1099 return 0;
1100}
1101
1102const bfd_target pef_vec =
1103{
1104 "pef", /* name */
1105 bfd_target_pef_flavour, /* flavour */
1106 BFD_ENDIAN_BIG, /* byteorder */
1107 BFD_ENDIAN_BIG, /* header_byteorder */
1108 (HAS_RELOC | EXEC_P | /* object flags */
1109 HAS_LINENO | HAS_DEBUG |
1110 HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
1111 (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | SEC_DATA
1112 | SEC_ROM | SEC_HAS_CONTENTS), /* section_flags */
1113 0, /* symbol_leading_char */
1114 ' ', /* ar_pad_char */
1115 16, /* ar_max_namelen */
1116 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1117 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1118 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
1119 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1120 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1121 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
1122 { /* bfd_check_format */
1123 _bfd_dummy_target,
1124 bfd_pef_object_p, /* bfd_check_format */
1125 _bfd_dummy_target,
1126 _bfd_dummy_target,
1127 },
1128 { /* bfd_set_format */
1129 bfd_false,
1130 bfd_pef_mkobject,
1131 bfd_false,
1132 bfd_false,
1133 },
1134 { /* bfd_write_contents */
1135 bfd_false,
1136 bfd_true,
1137 bfd_false,
1138 bfd_false,
1139 },
1140
1141 BFD_JUMP_TABLE_GENERIC (bfd_pef),
1142 BFD_JUMP_TABLE_COPY (_bfd_generic),
1143 BFD_JUMP_TABLE_CORE (_bfd_nocore),
1144 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
1145 BFD_JUMP_TABLE_SYMBOLS (bfd_pef),
1146 BFD_JUMP_TABLE_RELOCS (bfd_pef),
1147 BFD_JUMP_TABLE_WRITE (bfd_pef),
1148 BFD_JUMP_TABLE_LINK (bfd_pef),
1149 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
1150
1151 NULL,
1152
1153 NULL
1154};
1155
1156#define bfd_pef_xlib_close_and_cleanup _bfd_generic_close_and_cleanup
1157#define bfd_pef_xlib_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
1158#define bfd_pef_xlib_new_section_hook _bfd_generic_new_section_hook
1159#define bfd_pef_xlib_get_section_contents _bfd_generic_get_section_contents
1160#define bfd_pef_xlib_set_section_contents _bfd_generic_set_section_contents
1161#define bfd_pef_xlib_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
1162#define bfd_pef_xlib_set_section_contents_in_window _bfd_generic_set_section_contents_in_window
1163
1164static int
1165bfd_pef_xlib_read_header (abfd, header)
1166 bfd *abfd;
1167 bfd_pef_xlib_header *header;
1168{
1169 unsigned char buf[76];
1170
1171 bfd_seek (abfd, 0, SEEK_SET);
1172
1173 if (bfd_bread ((PTR) buf, 76, abfd) != 76)
1174 return -1;
1175
1176 header->tag1 = bfd_getb32 (buf);
1177 header->tag2 = bfd_getb32 (buf + 4);
1178 header->current_format = bfd_getb32 (buf + 8);
1179 header->container_strings_offset = bfd_getb32 (buf + 12);
1180 header->export_hash_offset = bfd_getb32 (buf + 16);
1181 header->export_key_offset = bfd_getb32 (buf + 20);
1182 header->export_symbol_offset = bfd_getb32 (buf + 24);
1183 header->export_names_offset = bfd_getb32 (buf + 28);
1184 header->export_hash_table_power = bfd_getb32 (buf + 32);
1185 header->exported_symbol_count = bfd_getb32 (buf + 36);
1186 header->frag_name_offset = bfd_getb32 (buf + 40);
1187 header->frag_name_length = bfd_getb32 (buf + 44);
1188 header->dylib_path_offset = bfd_getb32 (buf + 48);
1189 header->dylib_path_length = bfd_getb32 (buf + 52);
1190 header->cpu_family = bfd_getb32 (buf + 56);
1191 header->cpu_model = bfd_getb32 (buf + 60);
1192 header->date_time_stamp = bfd_getb32 (buf + 64);
1193 header->current_version = bfd_getb32 (buf + 68);
1194 header->old_definition_version = bfd_getb32 (buf + 72);
1195 header->old_implementation_version = bfd_getb32 (buf + 76);
1196
1197 return 0;
1198}
1199
1200int
1201bfd_pef_xlib_scan (abfd, header)
1202 bfd *abfd;
1203 bfd_pef_xlib_header *header;
1204{
1205 bfd_pef_xlib_data_struct *mdata = NULL;
1206
1207 mdata = ((bfd_pef_xlib_data_struct *)
1208 bfd_alloc (abfd, sizeof (bfd_pef_xlib_data_struct)));
1209 if (mdata == NULL)
1210 return -1;
1211
1212 mdata->header = *header;
1213
1214 abfd->flags = (abfd->xvec->object_flags
1215 | (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS)));
1216
1217 abfd->tdata.pef_xlib_data = mdata;
1218
1219 return 0;
1220}
1221
1222static const bfd_target *
1223bfd_pef_xlib_object_p (abfd)
1224 bfd *abfd;
1225{
1226 struct bfd_preserve preserve;
1227 bfd_pef_xlib_header header;
1228
1229 if (bfd_pef_xlib_read_header (abfd, &header) != 0)
1230 {
1231 bfd_set_error (bfd_error_wrong_format);
1232 return NULL;
1233 }
1234
1235 if ((header.tag1 != BFD_PEF_XLIB_TAG1)
1236 || ((header.tag2 != BFD_PEF_VLIB_TAG2)
1237 && (header.tag2 != BFD_PEF_BLIB_TAG2)))
1238 {
1239 bfd_set_error (bfd_error_wrong_format);
1240 return NULL;
1241 }
1242
1243 if (! bfd_preserve_save (abfd, &preserve))
1244 {
1245 bfd_set_error (bfd_error_wrong_format);
1246 return NULL;
1247 }
1248
1249 if (bfd_pef_xlib_scan (abfd, &header) != 0)
1250 {
1251 bfd_preserve_restore (abfd, &preserve);
1252 bfd_set_error (bfd_error_wrong_format);
1253 return NULL;
1254 }
1255
1256 bfd_preserve_finish (abfd, &preserve);
1257 return abfd->xvec;
1258}
1259
1260const bfd_target pef_xlib_vec =
1261{
1262 "pef-xlib", /* name */
1263 bfd_target_pef_xlib_flavour, /* flavour */
1264 BFD_ENDIAN_BIG, /* byteorder */
1265 BFD_ENDIAN_BIG, /* header_byteorder */
1266 (HAS_RELOC | EXEC_P | /* object flags */
1267 HAS_LINENO | HAS_DEBUG |
1268 HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
1269 (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | SEC_DATA
1270 | SEC_ROM | SEC_HAS_CONTENTS), /* section_flags */
1271 0, /* symbol_leading_char */
1272 ' ', /* ar_pad_char */
1273 16, /* ar_max_namelen */
1274 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1275 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1276 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
1277 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1278 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1279 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
1280 { /* bfd_check_format */
1281 _bfd_dummy_target,
1282 bfd_pef_xlib_object_p, /* bfd_check_format */
1283 _bfd_dummy_target,
1284 _bfd_dummy_target,
1285 },
1286 { /* bfd_set_format */
1287 bfd_false,
1288 bfd_pef_mkobject,
1289 bfd_false,
1290 bfd_false,
1291 },
1292 { /* bfd_write_contents */
1293 bfd_false,
1294 bfd_true,
1295 bfd_false,
1296 bfd_false,
1297 },
1298
1299 BFD_JUMP_TABLE_GENERIC (bfd_pef_xlib),
1300 BFD_JUMP_TABLE_COPY (_bfd_generic),
1301 BFD_JUMP_TABLE_CORE (_bfd_nocore),
1302 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
1303 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
1304 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
1305 BFD_JUMP_TABLE_WRITE (_bfd_nowrite),
1306 BFD_JUMP_TABLE_LINK (_bfd_nolink),
1307 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
1308
1309 NULL,
1310
1311 NULL
1312};
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