]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blob - bfd/pef.c
Index: doc/ChangeLog
[thirdparty/binutils-gdb.git] / bfd / pef.c
1 /* PEF support for BFD.
2 Copyright 1999, 2000, 2001, 2002, 2003
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 "safe-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 #define bfd_pef_get_reloc_upper_bound _bfd_norelocs_get_reloc_upper_bound
46 #define bfd_pef_canonicalize_reloc _bfd_norelocs_canonicalize_reloc
47 #define bfd_pef_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
48 #define bfd_pef_set_arch_mach _bfd_generic_set_arch_mach
49 #define bfd_pef_get_section_contents _bfd_generic_get_section_contents
50 #define bfd_pef_set_section_contents _bfd_generic_set_section_contents
51 #define bfd_pef_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
52 #define bfd_pef_bfd_relax_section bfd_generic_relax_section
53 #define bfd_pef_bfd_gc_sections bfd_generic_gc_sections
54 #define bfd_pef_bfd_merge_sections bfd_generic_merge_sections
55 #define bfd_pef_bfd_discard_group bfd_generic_discard_group
56 #define bfd_pef_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
57 #define bfd_pef_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
58 #define bfd_pef_bfd_link_add_symbols _bfd_generic_link_add_symbols
59 #define bfd_pef_bfd_link_just_syms _bfd_generic_link_just_syms
60 #define bfd_pef_bfd_final_link _bfd_generic_final_link
61 #define bfd_pef_bfd_link_split_section _bfd_generic_link_split_section
62 #define bfd_pef_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
63
64 static void bfd_pef_print_symbol PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type));
65 static void bfd_pef_convert_architecture PARAMS ((unsigned long, enum bfd_architecture *, unsigned long *));
66 static bfd_boolean bfd_pef_mkobject PARAMS ((bfd *));
67 static int bfd_pef_parse_traceback_table PARAMS ((bfd *, asection *, unsigned char *, size_t, size_t, asymbol *, FILE *));
68 static const char *bfd_pef_section_name PARAMS ((bfd_pef_section *));
69 static unsigned long bfd_pef_section_flags PARAMS ((bfd_pef_section *));
70 static asection *bfd_pef_make_bfd_section PARAMS ((bfd *, bfd_pef_section *));
71 static int bfd_pef_read_header PARAMS ((bfd *, bfd_pef_header *));
72 static const bfd_target *bfd_pef_object_p PARAMS ((bfd *));
73 static int bfd_pef_parse_traceback_tables PARAMS ((bfd *, asection *, unsigned char *, size_t, long *, asymbol **));
74 static int bfd_pef_parse_function_stub PARAMS ((bfd *, unsigned char *, size_t, unsigned long *));
75 static int bfd_pef_parse_function_stubs PARAMS ((bfd *, asection *, unsigned char *, size_t, unsigned char *, size_t, unsigned long *, asymbol **));
76 static long bfd_pef_parse_symbols PARAMS ((bfd *, asymbol **));
77 static long bfd_pef_count_symbols PARAMS ((bfd *));
78 static long bfd_pef_get_symtab_upper_bound PARAMS ((bfd *));
79 static long bfd_pef_canonicalize_symtab PARAMS ((bfd *, asymbol **));
80 static asymbol *bfd_pef_make_empty_symbol PARAMS ((bfd *));
81 static void bfd_pef_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *));
82 static int bfd_pef_sizeof_headers PARAMS ((bfd *, bfd_boolean));
83 static int bfd_pef_xlib_read_header PARAMS ((bfd *, bfd_pef_xlib_header *));
84 static int bfd_pef_xlib_scan PARAMS ((bfd *, bfd_pef_xlib_header *));
85 static const bfd_target *bfd_pef_xlib_object_p PARAMS ((bfd *));
86
87 static void
88 bfd_pef_print_symbol (abfd, afile, symbol, how)
89 bfd *abfd;
90 PTR afile;
91 asymbol *symbol;
92 bfd_print_symbol_type how;
93 {
94 FILE *file = (FILE *) afile;
95
96 switch (how)
97 {
98 case bfd_print_symbol_name:
99 fprintf (file, "%s", symbol->name);
100 break;
101 default:
102 bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
103 fprintf (file, " %-5s %s", symbol->section->name, symbol->name);
104 if (strncmp (symbol->name, "__traceback_", strlen ("__traceback_")) == 0)
105 {
106 char *buf = alloca (symbol->udata.i);
107 size_t offset = symbol->value + 4;
108 size_t len = symbol->udata.i;
109 int ret;
110
111 bfd_get_section_contents (abfd, symbol->section, buf, offset, len);
112 ret = bfd_pef_parse_traceback_table (abfd, symbol->section, buf,
113 len, 0, NULL, file);
114 if (ret < 0)
115 fprintf (file, " [ERROR]");
116 }
117 }
118 }
119
120 static void
121 bfd_pef_convert_architecture (architecture, type, subtype)
122 unsigned long architecture;
123 enum bfd_architecture *type;
124 unsigned long *subtype;
125 {
126 const unsigned long ARCH_POWERPC = 0x70777063; /* 'pwpc' */
127 const unsigned long ARCH_M68K = 0x6d36386b; /* 'm68k' */
128
129 *subtype = bfd_arch_unknown;
130 *type = bfd_arch_unknown;
131
132 if (architecture == ARCH_POWERPC)
133 *type = bfd_arch_powerpc;
134 else if (architecture == ARCH_M68K)
135 *type = bfd_arch_m68k;
136 }
137
138 static bfd_boolean
139 bfd_pef_mkobject (abfd)
140 bfd *abfd ATTRIBUTE_UNUSED;
141 {
142 return TRUE;
143 }
144
145 static int
146 bfd_pef_parse_traceback_table (abfd, section, buf, len, pos, sym, file)
147 bfd *abfd;
148 asection *section;
149 unsigned char *buf;
150 size_t len;
151 size_t pos;
152 asymbol *sym;
153 FILE *file;
154 {
155 struct traceback_table table;
156 size_t offset;
157 const char *s;
158 asymbol tmpsymbol;
159
160 if (sym == NULL)
161 sym = &tmpsymbol;
162
163 sym->name = NULL;
164 sym->value = 0;
165 sym->the_bfd = abfd;
166 sym->section = section;
167 sym->flags = 0;
168 sym->udata.i = 0;
169
170 /* memcpy is fine since all fields are unsigned char. */
171
172 if ((pos + 8) > len)
173 return -1;
174 memcpy (&table, buf + pos, 8);
175
176 /* Calling code relies on returned symbols having a name and
177 correct offset. */
178
179 if ((table.lang != TB_C) && (table.lang != TB_CPLUSPLUS))
180 return -1;
181
182 if (! (table.flags2 & TB_NAME_PRESENT))
183 return -1;
184
185 if (! table.flags1 & TB_HAS_TBOFF)
186 return -1;
187
188 offset = 8;
189
190 if ((table.flags5 & TB_FLOATPARAMS) || (table.fixedparams))
191 offset += 4;
192
193 if (table.flags1 & TB_HAS_TBOFF)
194 {
195 struct traceback_table_tboff off;
196
197 if ((pos + offset + 4) > len)
198 return -1;
199 off.tb_offset = bfd_getb32 (buf + pos + offset);
200 offset += 4;
201
202 /* Need to subtract 4 because the offset includes the 0x0L
203 preceding the table. */
204
205 if (file != NULL)
206 fprintf (file, " [offset = 0x%lx]", off.tb_offset);
207
208 if ((file == NULL) && ((off.tb_offset + 4) > (pos + offset)))
209 return -1;
210
211 sym->value = pos - off.tb_offset - 4;
212 }
213
214 if (table.flags2 & TB_INT_HNDL)
215 offset += 4;
216
217 if (table.flags1 & TB_HAS_CTL)
218 {
219 struct traceback_table_anchors anchors;
220
221 if ((pos + offset + 4) > len)
222 return -1;
223 anchors.ctl_info = bfd_getb32 (buf + pos + offset);
224 offset += 4;
225
226 if (anchors.ctl_info > 1024)
227 return -1;
228
229 offset += anchors.ctl_info * 4;
230 }
231
232 if (table.flags2 & TB_NAME_PRESENT)
233 {
234 struct traceback_table_routine name;
235 char *namebuf;
236
237 if ((pos + offset + 2) > len)
238 return -1;
239 name.name_len = bfd_getb16 (buf + pos + offset);
240 offset += 2;
241
242 if (name.name_len > 4096)
243 return -1;
244
245 if ((pos + offset + name.name_len) > len)
246 return -1;
247
248 namebuf = (char *) bfd_alloc (abfd, name.name_len + 1);
249 if (namebuf == NULL)
250 return -1;
251
252 memcpy (namebuf, buf + pos + offset, name.name_len);
253 namebuf[name.name_len] = '\0';
254
255 /* Strip leading period inserted by compiler. */
256 if (namebuf[0] == '.')
257 memmove (namebuf, namebuf + 1, name.name_len + 1);
258
259 sym->name = namebuf;
260
261 for (s = sym->name; (*s != '\0'); s++)
262 if (! ISPRINT (*s))
263 return -1;
264
265 offset += name.name_len;
266 }
267
268 if (table.flags2 & TB_USES_ALLOCA)
269 offset += 4;
270
271 if (table.flags4 & TB_HAS_VEC_INFO)
272 offset += 4;
273
274 if (file != NULL)
275 fprintf (file, " [length = 0x%lx]", (long) offset);
276
277 return offset;
278 }
279
280 static const char *bfd_pef_section_name (section)
281 bfd_pef_section *section;
282 {
283 switch (section->section_kind)
284 {
285 case BFD_PEF_SECTION_CODE: return "code";
286 case BFD_PEF_SECTION_UNPACKED_DATA: return "unpacked-data";
287 case BFD_PEF_SECTION_PACKED_DATA: return "packed-data";
288 case BFD_PEF_SECTION_CONSTANT: return "constant";
289 case BFD_PEF_SECTION_LOADER: return "loader";
290 case BFD_PEF_SECTION_DEBUG: return "debug";
291 case BFD_PEF_SECTION_EXEC_DATA: return "exec-data";
292 case BFD_PEF_SECTION_EXCEPTION: return "exception";
293 case BFD_PEF_SECTION_TRACEBACK: return "traceback";
294 default: return "unknown";
295 }
296 }
297
298 static unsigned long bfd_pef_section_flags (section)
299 bfd_pef_section *section;
300 {
301 switch (section->section_kind)
302 {
303 case BFD_PEF_SECTION_CODE:
304 return SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE;
305 case BFD_PEF_SECTION_UNPACKED_DATA:
306 case BFD_PEF_SECTION_PACKED_DATA:
307 case BFD_PEF_SECTION_CONSTANT:
308 case BFD_PEF_SECTION_LOADER:
309 case BFD_PEF_SECTION_DEBUG:
310 case BFD_PEF_SECTION_EXEC_DATA:
311 case BFD_PEF_SECTION_EXCEPTION:
312 case BFD_PEF_SECTION_TRACEBACK:
313 default:
314 return SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC;
315 }
316 }
317
318 static asection *
319 bfd_pef_make_bfd_section (abfd, section)
320 bfd *abfd;
321 bfd_pef_section *section;
322 {
323 asection *bfdsec;
324 const char *name = bfd_pef_section_name (section);
325
326 bfdsec = bfd_make_section_anyway (abfd, name);
327 if (bfdsec == NULL)
328 return NULL;
329
330 bfdsec->vma = section->default_address + section->container_offset;
331 bfdsec->lma = section->default_address + section->container_offset;
332 bfdsec->_raw_size = section->container_length;
333 bfdsec->filepos = section->container_offset;
334 bfdsec->alignment_power = section->alignment;
335
336 bfdsec->flags = bfd_pef_section_flags (section);
337
338 return bfdsec;
339 }
340
341 int bfd_pef_parse_loader_header (abfd, buf, len, header)
342 bfd *abfd ATTRIBUTE_UNUSED;
343 unsigned char *buf;
344 size_t len;
345 bfd_pef_loader_header *header;
346 {
347 BFD_ASSERT (len == 56);
348
349 header->main_section = bfd_getb32 (buf);
350 header->main_offset = bfd_getb32 (buf + 4);
351 header->init_section = bfd_getb32 (buf + 8);
352 header->init_offset = bfd_getb32 (buf + 12);
353 header->term_section = bfd_getb32 (buf + 16);
354 header->term_offset = bfd_getb32 (buf + 20);
355 header->imported_library_count = bfd_getb32 (buf + 24);
356 header->total_imported_symbol_count = bfd_getb32 (buf + 28);
357 header->reloc_section_count = bfd_getb32 (buf + 32);
358 header->reloc_instr_offset = bfd_getb32 (buf + 36);
359 header->loader_strings_offset = bfd_getb32 (buf + 40);
360 header->export_hash_offset = bfd_getb32 (buf + 44);
361 header->export_hash_table_power = bfd_getb32 (buf + 48);
362 header->exported_symbol_count = bfd_getb32 (buf + 52);
363
364 return 0;
365 }
366
367 int bfd_pef_parse_imported_library (abfd, buf, len, header)
368 bfd *abfd ATTRIBUTE_UNUSED;
369 unsigned char *buf;
370 size_t len;
371 bfd_pef_imported_library *header;
372 {
373 BFD_ASSERT (len == 24);
374
375 header->name_offset = bfd_getb32 (buf);
376 header->old_implementation_version = bfd_getb32 (buf + 4);
377 header->current_version = bfd_getb32 (buf + 8);
378 header->imported_symbol_count = bfd_getb32 (buf + 12);
379 header->first_imported_symbol = bfd_getb32 (buf + 16);
380 header->options = buf[20];
381 header->reserved_a = buf[21];
382 header->reserved_b = bfd_getb16 (buf + 22);
383
384 return 0;
385 }
386
387 int bfd_pef_parse_imported_symbol (abfd, buf, len, symbol)
388 bfd *abfd ATTRIBUTE_UNUSED;
389 unsigned char *buf;
390 size_t len;
391 bfd_pef_imported_symbol *symbol;
392 {
393 unsigned long value;
394
395 BFD_ASSERT (len == 4);
396
397 value = bfd_getb32 (buf);
398 symbol->class = value >> 24;
399 symbol->name = value & 0x00ffffff;
400
401 return 0;
402 }
403
404 int bfd_pef_scan_section (abfd, section)
405 bfd *abfd;
406 bfd_pef_section *section;
407 {
408 unsigned char buf[28];
409
410 bfd_seek (abfd, section->header_offset, SEEK_SET);
411 if (bfd_bread ((PTR) buf, 28, abfd) != 28)
412 return -1;
413
414 section->name_offset = bfd_h_get_32 (abfd, buf);
415 section->default_address = bfd_h_get_32 (abfd, buf + 4);
416 section->total_length = bfd_h_get_32 (abfd, buf + 8);
417 section->unpacked_length = bfd_h_get_32 (abfd, buf + 12);
418 section->container_length = bfd_h_get_32 (abfd, buf + 16);
419 section->container_offset = bfd_h_get_32 (abfd, buf + 20);
420 section->section_kind = buf[24];
421 section->share_kind = buf[25];
422 section->alignment = buf[26];
423 section->reserved = buf[27];
424
425 section->bfd_section = bfd_pef_make_bfd_section (abfd, section);
426 if (section->bfd_section == NULL)
427 return -1;
428
429 return 0;
430 }
431
432 void
433 bfd_pef_print_loader_header (abfd, header, file)
434 bfd *abfd ATTRIBUTE_UNUSED;
435 bfd_pef_loader_header *header;
436 FILE *file;
437 {
438 fprintf (file, "main_section: %ld\n", header->main_section);
439 fprintf (file, "main_offset: %lu\n", header->main_offset);
440 fprintf (file, "init_section: %ld\n", header->init_section);
441 fprintf (file, "init_offset: %lu\n", header->init_offset);
442 fprintf (file, "term_section: %ld\n", header->term_section);
443 fprintf (file, "term_offset: %lu\n", header->term_offset);
444 fprintf (file, "imported_library_count: %lu\n",
445 header->imported_library_count);
446 fprintf (file, "total_imported_symbol_count: %lu\n",
447 header->total_imported_symbol_count);
448 fprintf (file, "reloc_section_count: %lu\n", header->reloc_section_count);
449 fprintf (file, "reloc_instr_offset: %lu\n", header->reloc_instr_offset);
450 fprintf (file, "loader_strings_offset: %lu\n",
451 header->loader_strings_offset);
452 fprintf (file, "export_hash_offset: %lu\n", header->export_hash_offset);
453 fprintf (file, "export_hash_table_power: %lu\n",
454 header->export_hash_table_power);
455 fprintf (file, "exported_symbol_count: %lu\n",
456 header->exported_symbol_count);
457 }
458
459 int
460 bfd_pef_print_loader_section (abfd, file)
461 bfd *abfd;
462 FILE *file;
463 {
464 bfd_pef_loader_header header;
465 asection *loadersec = NULL;
466 unsigned char *loaderbuf = NULL;
467 size_t loaderlen = 0;
468 int ret;
469
470 loadersec = bfd_get_section_by_name (abfd, "loader");
471 if (loadersec == NULL)
472 return -1;
473
474 loaderlen = bfd_section_size (abfd, loadersec);
475 loaderbuf = (unsigned char *) bfd_malloc (loaderlen);
476 if (bfd_seek (abfd, loadersec->filepos, SEEK_SET) < 0)
477 {
478 free (loaderbuf);
479 return -1;
480 }
481 if (bfd_bread ((PTR) loaderbuf, loaderlen, abfd) != loaderlen)
482 {
483 free (loaderbuf);
484 return -1;
485 }
486
487 if (loaderlen < 56)
488 {
489 free (loaderbuf);
490 return -1;
491 }
492 ret = bfd_pef_parse_loader_header (abfd, loaderbuf, 56, &header);
493 if (ret < 0)
494 {
495 free (loaderbuf);
496 return -1;
497 }
498
499 bfd_pef_print_loader_header (abfd, &header, file);
500 return 0;
501 }
502
503 int
504 bfd_pef_scan_start_address (abfd)
505 bfd *abfd;
506 {
507 bfd_pef_loader_header header;
508 asection *section;
509
510 asection *loadersec = NULL;
511 unsigned char *loaderbuf = NULL;
512 size_t loaderlen = 0;
513 int ret;
514
515 loadersec = bfd_get_section_by_name (abfd, "loader");
516 if (loadersec == NULL)
517 goto end;
518
519 loaderlen = bfd_section_size (abfd, loadersec);
520 loaderbuf = (unsigned char *) bfd_malloc (loaderlen);
521 if (bfd_seek (abfd, loadersec->filepos, SEEK_SET) < 0)
522 goto error;
523 if (bfd_bread ((PTR) loaderbuf, loaderlen, abfd) != loaderlen)
524 goto error;
525
526 if (loaderlen < 56)
527 goto error;
528 ret = bfd_pef_parse_loader_header (abfd, loaderbuf, 56, &header);
529 if (ret < 0)
530 goto error;
531
532 if (header.main_section < 0)
533 goto end;
534
535 for (section = abfd->sections; section != NULL; section = section->next)
536 if ((section->index + 1) == header.main_section)
537 break;
538
539 if (section == NULL)
540 goto error;
541
542 abfd->start_address = section->vma + header.main_offset;
543
544 end:
545 if (loaderbuf != NULL)
546 free (loaderbuf);
547 return 0;
548
549 error:
550 if (loaderbuf != NULL)
551 free (loaderbuf);
552 return -1;
553 }
554
555 int
556 bfd_pef_scan (abfd, header, mdata)
557 bfd *abfd;
558 bfd_pef_header *header;
559 bfd_pef_data_struct *mdata;
560 {
561 unsigned int i;
562 enum bfd_architecture cputype;
563 unsigned long cpusubtype;
564
565 mdata->header = *header;
566
567 bfd_pef_convert_architecture (header->architecture, &cputype, &cpusubtype);
568 if (cputype == bfd_arch_unknown)
569 {
570 fprintf (stderr, "bfd_pef_scan: unknown architecture 0x%lx\n",
571 header->architecture);
572 return -1;
573 }
574 bfd_set_arch_mach (abfd, cputype, cpusubtype);
575
576 mdata->header = *header;
577
578 abfd->flags = (abfd->xvec->object_flags
579 | (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS)));
580
581 if (header->section_count != 0)
582 {
583 mdata->sections =
584 ((bfd_pef_section *)
585 bfd_alloc (abfd, header->section_count * sizeof (bfd_pef_section)));
586
587 if (mdata->sections == NULL)
588 return -1;
589
590 for (i = 0; i < header->section_count; i++)
591 {
592 bfd_pef_section *cur = &mdata->sections[i];
593 cur->header_offset = 40 + (i * 28);
594 if (bfd_pef_scan_section (abfd, cur) < 0)
595 return -1;
596 }
597 }
598
599 if (bfd_pef_scan_start_address (abfd) < 0)
600 {
601 #if 0
602 fprintf (stderr, "bfd_pef_scan: unable to scan start address: %s\n",
603 bfd_errmsg (bfd_get_error ()));
604 return -1;
605 #endif
606 }
607
608 abfd->tdata.pef_data = mdata;
609
610 return 0;
611 }
612
613 static int
614 bfd_pef_read_header (abfd, header)
615 bfd *abfd;
616 bfd_pef_header *header;
617 {
618 unsigned char buf[40];
619
620 bfd_seek (abfd, 0, SEEK_SET);
621
622 if (bfd_bread ((PTR) buf, 40, abfd) != 40)
623 return -1;
624
625 header->tag1 = bfd_getb32 (buf);
626 header->tag2 = bfd_getb32 (buf + 4);
627 header->architecture = bfd_getb32 (buf + 8);
628 header->format_version = bfd_getb32 (buf + 12);
629 header->timestamp = bfd_getb32 (buf + 16);
630 header->old_definition_version = bfd_getb32 (buf + 20);
631 header->old_implementation_version = bfd_getb32 (buf + 24);
632 header->current_version = bfd_getb32 (buf + 28);
633 header->section_count = bfd_getb32 (buf + 32) + 1;
634 header->instantiated_section_count = bfd_getb32 (buf + 34);
635 header->reserved = bfd_getb32 (buf + 36);
636
637 return 0;
638 }
639
640 static const bfd_target *
641 bfd_pef_object_p (abfd)
642 bfd *abfd;
643 {
644 struct bfd_preserve preserve;
645 bfd_pef_header header;
646
647 preserve.marker = NULL;
648 if (bfd_pef_read_header (abfd, &header) != 0)
649 goto wrong;
650
651 if (header.tag1 != BFD_PEF_TAG1 || header.tag2 != BFD_PEF_TAG2)
652 goto wrong;
653
654 preserve.marker = bfd_zalloc (abfd, sizeof (bfd_pef_data_struct));
655 if (preserve.marker == NULL
656 || !bfd_preserve_save (abfd, &preserve))
657 goto fail;
658
659 if (bfd_pef_scan (abfd, &header,
660 (bfd_pef_data_struct *) preserve.marker) != 0)
661 goto wrong;
662
663 bfd_preserve_finish (abfd, &preserve);
664 return abfd->xvec;
665
666 wrong:
667 bfd_set_error (bfd_error_wrong_format);
668
669 fail:
670 if (preserve.marker != NULL)
671 bfd_preserve_restore (abfd, &preserve);
672 return NULL;
673 }
674
675 static int bfd_pef_parse_traceback_tables (abfd, sec, buf, len, nsym, csym)
676 bfd *abfd;
677 asection *sec;
678 unsigned char *buf;
679 size_t len;
680 long *nsym;
681 asymbol **csym;
682 {
683 char *name;
684
685 asymbol function;
686 asymbol traceback;
687
688 const char *const tbprefix = "__traceback_";
689 size_t tbnamelen;
690
691 size_t pos = 0;
692 unsigned long count = 0;
693 int ret;
694
695 for (;;)
696 {
697 /* We're reading symbols two at a time. */
698 if (csym && ((csym[count] == NULL) || (csym[count + 1] == NULL)))
699 break;
700
701 pos += 3;
702 pos -= (pos % 4);
703
704 while ((pos + 4) <= len)
705 {
706 if (bfd_getb32 (buf + pos) == 0)
707 break;
708 pos += 4;
709 }
710
711 if ((pos + 4) > len)
712 break;
713
714 ret = bfd_pef_parse_traceback_table (abfd, sec, buf, len, pos + 4,
715 &function, 0);
716 if (ret < 0)
717 {
718 /* Skip over 0x0L to advance to next possible traceback table. */
719 pos += 4;
720 continue;
721 }
722
723 BFD_ASSERT (function.name != NULL);
724
725 /* Don't bother to compute the name if we are just
726 counting symbols. */
727
728 if (csym)
729 {
730 tbnamelen = strlen (tbprefix) + strlen (function.name);
731 name = bfd_alloc (abfd, tbnamelen + 1);
732 if (name == NULL)
733 {
734 bfd_release (abfd, (PTR) function.name);
735 function.name = NULL;
736 break;
737 }
738 snprintf (name, tbnamelen + 1, "%s%s", tbprefix, function.name);
739 traceback.name = name;
740 traceback.value = pos;
741 traceback.the_bfd = abfd;
742 traceback.section = sec;
743 traceback.flags = 0;
744 traceback.udata.i = ret;
745
746 *(csym[count]) = function;
747 *(csym[count + 1]) = traceback;
748 }
749
750 pos += ret;
751 count += 2;
752 }
753
754 *nsym = count;
755 return 0;
756 }
757
758 static int bfd_pef_parse_function_stub (abfd, buf, len, offset)
759 bfd *abfd ATTRIBUTE_UNUSED;
760 unsigned char *buf;
761 size_t len;
762 unsigned long *offset;
763 {
764 BFD_ASSERT (len == 24);
765
766 if ((bfd_getb32 (buf) & 0xffff0000) != 0x81820000)
767 return -1;
768 if (bfd_getb32 (buf + 4) != 0x90410014)
769 return -1;
770 if (bfd_getb32 (buf + 8) != 0x800c0000)
771 return -1;
772 if (bfd_getb32 (buf + 12) != 0x804c0004)
773 return -1;
774 if (bfd_getb32 (buf + 16) != 0x7c0903a6)
775 return -1;
776 if (bfd_getb32 (buf + 20) != 0x4e800420)
777 return -1;
778
779 if (offset != NULL)
780 *offset = (bfd_getb32 (buf) & 0x0000ffff) / 4;
781
782 return 0;
783 }
784
785 static int bfd_pef_parse_function_stubs (abfd, codesec, codebuf, codelen,
786 loaderbuf, loaderlen, nsym, csym)
787 bfd *abfd;
788 asection *codesec;
789 unsigned char *codebuf;
790 size_t codelen;
791 unsigned char *loaderbuf;
792 size_t loaderlen;
793 unsigned long *nsym;
794 asymbol **csym;
795 {
796 const char *const sprefix = "__stub_";
797
798 size_t codepos = 0;
799 unsigned long count = 0;
800
801 bfd_pef_loader_header header;
802 bfd_pef_imported_library *libraries = NULL;
803 bfd_pef_imported_symbol *imports = NULL;
804
805 unsigned long i;
806 int ret;
807
808 if (loaderlen < 56)
809 goto error;
810
811 ret = bfd_pef_parse_loader_header (abfd, loaderbuf, 56, &header);
812 if (ret < 0)
813 goto error;
814
815 libraries = (bfd_pef_imported_library *) bfd_malloc
816 (header.imported_library_count * sizeof (bfd_pef_imported_library));
817 imports = (bfd_pef_imported_symbol *) bfd_malloc
818 (header.total_imported_symbol_count * sizeof (bfd_pef_imported_symbol));
819
820 if (loaderlen < (56 + (header.imported_library_count * 24)))
821 goto error;
822 for (i = 0; i < header.imported_library_count; i++)
823 {
824 ret = bfd_pef_parse_imported_library
825 (abfd, loaderbuf + 56 + (i * 24), 24, &libraries[i]);
826 if (ret < 0)
827 goto error;
828 }
829
830 if (loaderlen < (56 + (header.imported_library_count * 24)
831 + (header.total_imported_symbol_count * 4)))
832 goto error;
833 for (i = 0; i < header.total_imported_symbol_count; i++)
834 {
835 ret = (bfd_pef_parse_imported_symbol
836 (abfd,
837 loaderbuf + 56 + (header.imported_library_count * 24) + (i * 4),
838 4, &imports[i]));
839 if (ret < 0)
840 goto error;
841 }
842
843 codepos = 0;
844
845 for (;;)
846 {
847 asymbol sym;
848 const char *symname;
849 char *name;
850 unsigned long index;
851 int ret;
852
853 if (csym && (csym[count] == NULL))
854 break;
855
856 codepos += 3;
857 codepos -= (codepos % 4);
858
859 while ((codepos + 4) <= codelen)
860 {
861 if ((bfd_getb32 (codebuf + codepos) & 0xffff0000) == 0x81820000)
862 break;
863 codepos += 4;
864 }
865
866 if ((codepos + 4) > codelen)
867 break;
868
869 ret = bfd_pef_parse_function_stub (abfd, codebuf + codepos, 24, &index);
870 if (ret < 0)
871 {
872 codepos += 24;
873 continue;
874 }
875
876 if (index >= header.total_imported_symbol_count)
877 {
878 codepos += 24;
879 continue;
880 }
881
882 {
883 size_t max, namelen;
884 const char *s;
885
886 if (loaderlen < (header.loader_strings_offset + imports[index].name))
887 goto error;
888
889 max = loaderlen - (header.loader_strings_offset + imports[index].name);
890 symname = loaderbuf + header.loader_strings_offset + imports[index].name;
891 namelen = 0;
892 for (s = symname; s < (symname + max); s++)
893 {
894 if (*s == '\0')
895 break;
896 if (! ISPRINT (*s))
897 goto error;
898 namelen++;
899 }
900 if (*s != '\0')
901 goto error;
902
903 name = bfd_alloc (abfd, strlen (sprefix) + namelen + 1);
904 if (name == NULL)
905 break;
906
907 snprintf (name, strlen (sprefix) + namelen + 1, "%s%s",
908 sprefix, symname);
909 sym.name = name;
910 }
911
912 sym.value = codepos;
913 sym.the_bfd = abfd;
914 sym.section = codesec;
915 sym.flags = 0;
916 sym.udata.i = 0;
917
918 codepos += 24;
919
920 if (csym != NULL)
921 *(csym[count]) = sym;
922
923 count++;
924 }
925
926 goto end;
927
928 end:
929 if (libraries != NULL)
930 free (libraries);
931 if (imports != NULL)
932 free (imports);
933 *nsym = count;
934 return 0;
935
936 error:
937 if (libraries != NULL)
938 free (libraries);
939 if (imports != NULL)
940 free (imports);
941 *nsym = count;
942 return -1;
943 }
944
945 static long bfd_pef_parse_symbols (abfd, csym)
946 bfd *abfd;
947 asymbol **csym;
948 {
949 unsigned long count = 0;
950
951 asection *codesec = NULL;
952 unsigned char *codebuf = NULL;
953 size_t codelen = 0;
954
955 asection *loadersec = NULL;
956 unsigned char *loaderbuf = NULL;
957 size_t loaderlen = 0;
958
959 codesec = bfd_get_section_by_name (abfd, "code");
960 if (codesec != NULL)
961 {
962 codelen = bfd_section_size (abfd, codesec);
963 codebuf = (unsigned char *) bfd_malloc (codelen);
964 if (bfd_seek (abfd, codesec->filepos, SEEK_SET) < 0)
965 goto end;
966 if (bfd_bread ((PTR) codebuf, codelen, abfd) != codelen)
967 goto end;
968 }
969
970 loadersec = bfd_get_section_by_name (abfd, "loader");
971 if (loadersec != NULL)
972 {
973 loaderlen = bfd_section_size (abfd, loadersec);
974 loaderbuf = (unsigned char *) bfd_malloc (loaderlen);
975 if (bfd_seek (abfd, loadersec->filepos, SEEK_SET) < 0)
976 goto end;
977 if (bfd_bread ((PTR) loaderbuf, loaderlen, abfd) != loaderlen)
978 goto end;
979 }
980
981 count = 0;
982 if (codesec != NULL)
983 {
984 unsigned long ncount = 0;
985 bfd_pef_parse_traceback_tables (abfd, codesec, codebuf, codelen,
986 &ncount, csym);
987 count += ncount;
988 }
989
990 if ((codesec != NULL) && (loadersec != NULL))
991 {
992 unsigned long ncount = 0;
993 bfd_pef_parse_function_stubs
994 (abfd, codesec, codebuf, codelen, loaderbuf, loaderlen, &ncount,
995 (csym != NULL) ? (csym + count) : NULL);
996 count += ncount;
997 }
998
999 if (csym != NULL)
1000 csym[count] = NULL;
1001
1002 end:
1003 if (codebuf != NULL)
1004 free (codebuf);
1005
1006 if (loaderbuf != NULL)
1007 free (loaderbuf);
1008
1009 return count;
1010 }
1011
1012 static long
1013 bfd_pef_count_symbols (abfd)
1014 bfd *abfd;
1015 {
1016 return bfd_pef_parse_symbols (abfd, NULL);
1017 }
1018
1019 static long
1020 bfd_pef_get_symtab_upper_bound (abfd)
1021 bfd *abfd;
1022 {
1023 long nsyms = bfd_pef_count_symbols (abfd);
1024 if (nsyms < 0)
1025 return nsyms;
1026 return ((nsyms + 1) * sizeof (asymbol *));
1027 }
1028
1029 static long
1030 bfd_pef_canonicalize_symtab (abfd, alocation)
1031 bfd *abfd;
1032 asymbol **alocation;
1033 {
1034 long i;
1035 asymbol *syms;
1036 long ret;
1037
1038 long nsyms = bfd_pef_count_symbols (abfd);
1039 if (nsyms < 0)
1040 return nsyms;
1041
1042 syms = bfd_alloc (abfd, nsyms * sizeof (asymbol));
1043 if (syms == NULL)
1044 return -1;
1045
1046 for (i = 0; i < nsyms; i++)
1047 alocation[i] = &syms[i];
1048
1049 alocation[nsyms] = NULL;
1050
1051 ret = bfd_pef_parse_symbols (abfd, alocation);
1052 if (ret != nsyms)
1053 return 0;
1054
1055 return ret;
1056 }
1057
1058 static asymbol *
1059 bfd_pef_make_empty_symbol (abfd)
1060 bfd *abfd;
1061 {
1062 return (asymbol *) bfd_alloc (abfd, sizeof (asymbol));
1063 }
1064
1065 static void
1066 bfd_pef_get_symbol_info (abfd, symbol, ret)
1067 bfd *abfd ATTRIBUTE_UNUSED;
1068 asymbol *symbol;
1069 symbol_info *ret;
1070 {
1071 bfd_symbol_info (symbol, ret);
1072 }
1073
1074 static int
1075 bfd_pef_sizeof_headers (abfd, exec)
1076 bfd *abfd ATTRIBUTE_UNUSED;
1077 bfd_boolean exec ATTRIBUTE_UNUSED;
1078 {
1079 return 0;
1080 }
1081
1082 const bfd_target pef_vec =
1083 {
1084 "pef", /* name */
1085 bfd_target_pef_flavour, /* flavour */
1086 BFD_ENDIAN_BIG, /* byteorder */
1087 BFD_ENDIAN_BIG, /* header_byteorder */
1088 (HAS_RELOC | EXEC_P | /* object flags */
1089 HAS_LINENO | HAS_DEBUG |
1090 HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
1091 (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | SEC_DATA
1092 | SEC_ROM | SEC_HAS_CONTENTS), /* section_flags */
1093 0, /* symbol_leading_char */
1094 ' ', /* ar_pad_char */
1095 16, /* ar_max_namelen */
1096 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1097 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1098 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
1099 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1100 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1101 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
1102 { /* bfd_check_format */
1103 _bfd_dummy_target,
1104 bfd_pef_object_p, /* bfd_check_format */
1105 _bfd_dummy_target,
1106 _bfd_dummy_target,
1107 },
1108 { /* bfd_set_format */
1109 bfd_false,
1110 bfd_pef_mkobject,
1111 bfd_false,
1112 bfd_false,
1113 },
1114 { /* bfd_write_contents */
1115 bfd_false,
1116 bfd_true,
1117 bfd_false,
1118 bfd_false,
1119 },
1120
1121 BFD_JUMP_TABLE_GENERIC (bfd_pef),
1122 BFD_JUMP_TABLE_COPY (_bfd_generic),
1123 BFD_JUMP_TABLE_CORE (_bfd_nocore),
1124 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
1125 BFD_JUMP_TABLE_SYMBOLS (bfd_pef),
1126 BFD_JUMP_TABLE_RELOCS (bfd_pef),
1127 BFD_JUMP_TABLE_WRITE (bfd_pef),
1128 BFD_JUMP_TABLE_LINK (bfd_pef),
1129 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
1130
1131 NULL,
1132
1133 NULL
1134 };
1135
1136 #define bfd_pef_xlib_close_and_cleanup _bfd_generic_close_and_cleanup
1137 #define bfd_pef_xlib_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
1138 #define bfd_pef_xlib_new_section_hook _bfd_generic_new_section_hook
1139 #define bfd_pef_xlib_get_section_contents _bfd_generic_get_section_contents
1140 #define bfd_pef_xlib_set_section_contents _bfd_generic_set_section_contents
1141 #define bfd_pef_xlib_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
1142 #define bfd_pef_xlib_set_section_contents_in_window _bfd_generic_set_section_contents_in_window
1143
1144 static int
1145 bfd_pef_xlib_read_header (abfd, header)
1146 bfd *abfd;
1147 bfd_pef_xlib_header *header;
1148 {
1149 unsigned char buf[76];
1150
1151 bfd_seek (abfd, 0, SEEK_SET);
1152
1153 if (bfd_bread ((PTR) buf, 76, abfd) != 76)
1154 return -1;
1155
1156 header->tag1 = bfd_getb32 (buf);
1157 header->tag2 = bfd_getb32 (buf + 4);
1158 header->current_format = bfd_getb32 (buf + 8);
1159 header->container_strings_offset = bfd_getb32 (buf + 12);
1160 header->export_hash_offset = bfd_getb32 (buf + 16);
1161 header->export_key_offset = bfd_getb32 (buf + 20);
1162 header->export_symbol_offset = bfd_getb32 (buf + 24);
1163 header->export_names_offset = bfd_getb32 (buf + 28);
1164 header->export_hash_table_power = bfd_getb32 (buf + 32);
1165 header->exported_symbol_count = bfd_getb32 (buf + 36);
1166 header->frag_name_offset = bfd_getb32 (buf + 40);
1167 header->frag_name_length = bfd_getb32 (buf + 44);
1168 header->dylib_path_offset = bfd_getb32 (buf + 48);
1169 header->dylib_path_length = bfd_getb32 (buf + 52);
1170 header->cpu_family = bfd_getb32 (buf + 56);
1171 header->cpu_model = bfd_getb32 (buf + 60);
1172 header->date_time_stamp = bfd_getb32 (buf + 64);
1173 header->current_version = bfd_getb32 (buf + 68);
1174 header->old_definition_version = bfd_getb32 (buf + 72);
1175 header->old_implementation_version = bfd_getb32 (buf + 76);
1176
1177 return 0;
1178 }
1179
1180 int
1181 bfd_pef_xlib_scan (abfd, header)
1182 bfd *abfd;
1183 bfd_pef_xlib_header *header;
1184 {
1185 bfd_pef_xlib_data_struct *mdata = NULL;
1186
1187 mdata = ((bfd_pef_xlib_data_struct *)
1188 bfd_alloc (abfd, sizeof (bfd_pef_xlib_data_struct)));
1189 if (mdata == NULL)
1190 return -1;
1191
1192 mdata->header = *header;
1193
1194 abfd->flags = (abfd->xvec->object_flags
1195 | (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS)));
1196
1197 abfd->tdata.pef_xlib_data = mdata;
1198
1199 return 0;
1200 }
1201
1202 static const bfd_target *
1203 bfd_pef_xlib_object_p (abfd)
1204 bfd *abfd;
1205 {
1206 struct bfd_preserve preserve;
1207 bfd_pef_xlib_header header;
1208
1209 if (bfd_pef_xlib_read_header (abfd, &header) != 0)
1210 {
1211 bfd_set_error (bfd_error_wrong_format);
1212 return NULL;
1213 }
1214
1215 if ((header.tag1 != BFD_PEF_XLIB_TAG1)
1216 || ((header.tag2 != BFD_PEF_VLIB_TAG2)
1217 && (header.tag2 != BFD_PEF_BLIB_TAG2)))
1218 {
1219 bfd_set_error (bfd_error_wrong_format);
1220 return NULL;
1221 }
1222
1223 if (! bfd_preserve_save (abfd, &preserve))
1224 {
1225 bfd_set_error (bfd_error_wrong_format);
1226 return NULL;
1227 }
1228
1229 if (bfd_pef_xlib_scan (abfd, &header) != 0)
1230 {
1231 bfd_preserve_restore (abfd, &preserve);
1232 bfd_set_error (bfd_error_wrong_format);
1233 return NULL;
1234 }
1235
1236 bfd_preserve_finish (abfd, &preserve);
1237 return abfd->xvec;
1238 }
1239
1240 const bfd_target pef_xlib_vec =
1241 {
1242 "pef-xlib", /* name */
1243 bfd_target_pef_xlib_flavour, /* flavour */
1244 BFD_ENDIAN_BIG, /* byteorder */
1245 BFD_ENDIAN_BIG, /* header_byteorder */
1246 (HAS_RELOC | EXEC_P | /* object flags */
1247 HAS_LINENO | HAS_DEBUG |
1248 HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
1249 (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | SEC_DATA
1250 | SEC_ROM | SEC_HAS_CONTENTS), /* section_flags */
1251 0, /* symbol_leading_char */
1252 ' ', /* ar_pad_char */
1253 16, /* ar_max_namelen */
1254 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1255 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1256 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
1257 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1258 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1259 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
1260 { /* bfd_check_format */
1261 _bfd_dummy_target,
1262 bfd_pef_xlib_object_p, /* bfd_check_format */
1263 _bfd_dummy_target,
1264 _bfd_dummy_target,
1265 },
1266 { /* bfd_set_format */
1267 bfd_false,
1268 bfd_pef_mkobject,
1269 bfd_false,
1270 bfd_false,
1271 },
1272 { /* bfd_write_contents */
1273 bfd_false,
1274 bfd_true,
1275 bfd_false,
1276 bfd_false,
1277 },
1278
1279 BFD_JUMP_TABLE_GENERIC (bfd_pef_xlib),
1280 BFD_JUMP_TABLE_COPY (_bfd_generic),
1281 BFD_JUMP_TABLE_CORE (_bfd_nocore),
1282 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
1283 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
1284 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
1285 BFD_JUMP_TABLE_WRITE (_bfd_nowrite),
1286 BFD_JUMP_TABLE_LINK (_bfd_nolink),
1287 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
1288
1289 NULL,
1290
1291 NULL
1292 };