bfd/
[deliverable/binutils-gdb.git] / bfd / pef.c
1 /* PEF support for BFD.
2 Copyright 1999, 2000, 2001, 2002, 2003, 2004
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_is_group_section bfd_generic_is_group_section
56 #define bfd_pef_bfd_discard_group bfd_generic_discard_group
57 #define bfd_pef_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
58 #define bfd_pef_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
59 #define bfd_pef_bfd_link_add_symbols _bfd_generic_link_add_symbols
60 #define bfd_pef_bfd_link_just_syms _bfd_generic_link_just_syms
61 #define bfd_pef_bfd_final_link _bfd_generic_final_link
62 #define bfd_pef_bfd_link_split_section _bfd_generic_link_split_section
63 #define bfd_pef_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
64
65 static void bfd_pef_print_symbol PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type));
66 static void bfd_pef_convert_architecture PARAMS ((unsigned long, enum bfd_architecture *, unsigned long *));
67 static bfd_boolean bfd_pef_mkobject PARAMS ((bfd *));
68 static int bfd_pef_parse_traceback_table PARAMS ((bfd *, asection *, unsigned char *, size_t, size_t, asymbol *, FILE *));
69 static const char *bfd_pef_section_name PARAMS ((bfd_pef_section *));
70 static unsigned long bfd_pef_section_flags PARAMS ((bfd_pef_section *));
71 static asection *bfd_pef_make_bfd_section PARAMS ((bfd *, bfd_pef_section *));
72 static int bfd_pef_read_header PARAMS ((bfd *, bfd_pef_header *));
73 static const bfd_target *bfd_pef_object_p PARAMS ((bfd *));
74 static int bfd_pef_parse_traceback_tables PARAMS ((bfd *, asection *, unsigned char *, size_t, long *, asymbol **));
75 static int bfd_pef_parse_function_stub PARAMS ((bfd *, unsigned char *, size_t, unsigned long *));
76 static int bfd_pef_parse_function_stubs PARAMS ((bfd *, asection *, unsigned char *, size_t, unsigned char *, size_t, unsigned long *, asymbol **));
77 static long bfd_pef_parse_symbols PARAMS ((bfd *, asymbol **));
78 static long bfd_pef_count_symbols PARAMS ((bfd *));
79 static long bfd_pef_get_symtab_upper_bound PARAMS ((bfd *));
80 static long bfd_pef_canonicalize_symtab PARAMS ((bfd *, asymbol **));
81 static asymbol *bfd_pef_make_empty_symbol PARAMS ((bfd *));
82 static void bfd_pef_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *));
83 static int bfd_pef_sizeof_headers PARAMS ((bfd *, bfd_boolean));
84 static int bfd_pef_xlib_read_header PARAMS ((bfd *, bfd_pef_xlib_header *));
85 static int bfd_pef_xlib_scan PARAMS ((bfd *, bfd_pef_xlib_header *));
86 static const bfd_target *bfd_pef_xlib_object_p PARAMS ((bfd *));
87
88 static void
89 bfd_pef_print_symbol (abfd, afile, symbol, how)
90 bfd *abfd;
91 PTR afile;
92 asymbol *symbol;
93 bfd_print_symbol_type how;
94 {
95 FILE *file = (FILE *) afile;
96
97 switch (how)
98 {
99 case bfd_print_symbol_name:
100 fprintf (file, "%s", symbol->name);
101 break;
102 default:
103 bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
104 fprintf (file, " %-5s %s", symbol->section->name, symbol->name);
105 if (strncmp (symbol->name, "__traceback_", strlen ("__traceback_")) == 0)
106 {
107 char *buf = alloca (symbol->udata.i);
108 size_t offset = symbol->value + 4;
109 size_t len = symbol->udata.i;
110 int ret;
111
112 bfd_get_section_contents (abfd, symbol->section, buf, offset, len);
113 ret = bfd_pef_parse_traceback_table (abfd, symbol->section, buf,
114 len, 0, NULL, file);
115 if (ret < 0)
116 fprintf (file, " [ERROR]");
117 }
118 }
119 }
120
121 static void
122 bfd_pef_convert_architecture (architecture, type, subtype)
123 unsigned long architecture;
124 enum bfd_architecture *type;
125 unsigned long *subtype;
126 {
127 const unsigned long ARCH_POWERPC = 0x70777063; /* 'pwpc' */
128 const unsigned long ARCH_M68K = 0x6d36386b; /* 'm68k' */
129
130 *subtype = bfd_arch_unknown;
131 *type = bfd_arch_unknown;
132
133 if (architecture == ARCH_POWERPC)
134 *type = bfd_arch_powerpc;
135 else if (architecture == ARCH_M68K)
136 *type = bfd_arch_m68k;
137 }
138
139 static bfd_boolean
140 bfd_pef_mkobject (abfd)
141 bfd *abfd ATTRIBUTE_UNUSED;
142 {
143 return TRUE;
144 }
145
146 static int
147 bfd_pef_parse_traceback_table (abfd, section, buf, len, pos, sym, file)
148 bfd *abfd;
149 asection *section;
150 unsigned char *buf;
151 size_t len;
152 size_t pos;
153 asymbol *sym;
154 FILE *file;
155 {
156 struct traceback_table table;
157 size_t offset;
158 const char *s;
159 asymbol tmpsymbol;
160
161 if (sym == NULL)
162 sym = &tmpsymbol;
163
164 sym->name = NULL;
165 sym->value = 0;
166 sym->the_bfd = abfd;
167 sym->section = section;
168 sym->flags = 0;
169 sym->udata.i = 0;
170
171 /* memcpy is fine since all fields are unsigned char. */
172
173 if ((pos + 8) > len)
174 return -1;
175 memcpy (&table, buf + pos, 8);
176
177 /* Calling code relies on returned symbols having a name and
178 correct offset. */
179
180 if ((table.lang != TB_C) && (table.lang != TB_CPLUSPLUS))
181 return -1;
182
183 if (! (table.flags2 & TB_NAME_PRESENT))
184 return -1;
185
186 if (! table.flags1 & TB_HAS_TBOFF)
187 return -1;
188
189 offset = 8;
190
191 if ((table.flags5 & TB_FLOATPARAMS) || (table.fixedparams))
192 offset += 4;
193
194 if (table.flags1 & TB_HAS_TBOFF)
195 {
196 struct traceback_table_tboff off;
197
198 if ((pos + offset + 4) > len)
199 return -1;
200 off.tb_offset = bfd_getb32 (buf + pos + offset);
201 offset += 4;
202
203 /* Need to subtract 4 because the offset includes the 0x0L
204 preceding the table. */
205
206 if (file != NULL)
207 fprintf (file, " [offset = 0x%lx]", off.tb_offset);
208
209 if ((file == NULL) && ((off.tb_offset + 4) > (pos + offset)))
210 return -1;
211
212 sym->value = pos - off.tb_offset - 4;
213 }
214
215 if (table.flags2 & TB_INT_HNDL)
216 offset += 4;
217
218 if (table.flags1 & TB_HAS_CTL)
219 {
220 struct traceback_table_anchors anchors;
221
222 if ((pos + offset + 4) > len)
223 return -1;
224 anchors.ctl_info = bfd_getb32 (buf + pos + offset);
225 offset += 4;
226
227 if (anchors.ctl_info > 1024)
228 return -1;
229
230 offset += anchors.ctl_info * 4;
231 }
232
233 if (table.flags2 & TB_NAME_PRESENT)
234 {
235 struct traceback_table_routine name;
236 char *namebuf;
237
238 if ((pos + offset + 2) > len)
239 return -1;
240 name.name_len = bfd_getb16 (buf + pos + offset);
241 offset += 2;
242
243 if (name.name_len > 4096)
244 return -1;
245
246 if ((pos + offset + name.name_len) > len)
247 return -1;
248
249 namebuf = (char *) bfd_alloc (abfd, name.name_len + 1);
250 if (namebuf == NULL)
251 return -1;
252
253 memcpy (namebuf, buf + pos + offset, name.name_len);
254 namebuf[name.name_len] = '\0';
255
256 /* Strip leading period inserted by compiler. */
257 if (namebuf[0] == '.')
258 memmove (namebuf, namebuf + 1, name.name_len + 1);
259
260 sym->name = namebuf;
261
262 for (s = sym->name; (*s != '\0'); s++)
263 if (! ISPRINT (*s))
264 return -1;
265
266 offset += name.name_len;
267 }
268
269 if (table.flags2 & TB_USES_ALLOCA)
270 offset += 4;
271
272 if (table.flags4 & TB_HAS_VEC_INFO)
273 offset += 4;
274
275 if (file != NULL)
276 fprintf (file, " [length = 0x%lx]", (long) offset);
277
278 return offset;
279 }
280
281 static const char *bfd_pef_section_name (section)
282 bfd_pef_section *section;
283 {
284 switch (section->section_kind)
285 {
286 case BFD_PEF_SECTION_CODE: return "code";
287 case BFD_PEF_SECTION_UNPACKED_DATA: return "unpacked-data";
288 case BFD_PEF_SECTION_PACKED_DATA: return "packed-data";
289 case BFD_PEF_SECTION_CONSTANT: return "constant";
290 case BFD_PEF_SECTION_LOADER: return "loader";
291 case BFD_PEF_SECTION_DEBUG: return "debug";
292 case BFD_PEF_SECTION_EXEC_DATA: return "exec-data";
293 case BFD_PEF_SECTION_EXCEPTION: return "exception";
294 case BFD_PEF_SECTION_TRACEBACK: return "traceback";
295 default: return "unknown";
296 }
297 }
298
299 static unsigned long bfd_pef_section_flags (section)
300 bfd_pef_section *section;
301 {
302 switch (section->section_kind)
303 {
304 case BFD_PEF_SECTION_CODE:
305 return SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE;
306 case BFD_PEF_SECTION_UNPACKED_DATA:
307 case BFD_PEF_SECTION_PACKED_DATA:
308 case BFD_PEF_SECTION_CONSTANT:
309 case BFD_PEF_SECTION_LOADER:
310 case BFD_PEF_SECTION_DEBUG:
311 case BFD_PEF_SECTION_EXEC_DATA:
312 case BFD_PEF_SECTION_EXCEPTION:
313 case BFD_PEF_SECTION_TRACEBACK:
314 default:
315 return SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC;
316 }
317 }
318
319 static asection *
320 bfd_pef_make_bfd_section (abfd, section)
321 bfd *abfd;
322 bfd_pef_section *section;
323 {
324 asection *bfdsec;
325 const char *name = bfd_pef_section_name (section);
326
327 bfdsec = bfd_make_section_anyway (abfd, name);
328 if (bfdsec == NULL)
329 return NULL;
330
331 bfdsec->vma = section->default_address + section->container_offset;
332 bfdsec->lma = section->default_address + section->container_offset;
333 bfdsec->size = section->container_length;
334 bfdsec->filepos = section->container_offset;
335 bfdsec->alignment_power = section->alignment;
336
337 bfdsec->flags = bfd_pef_section_flags (section);
338
339 return bfdsec;
340 }
341
342 int bfd_pef_parse_loader_header (abfd, buf, len, header)
343 bfd *abfd ATTRIBUTE_UNUSED;
344 unsigned char *buf;
345 size_t len;
346 bfd_pef_loader_header *header;
347 {
348 BFD_ASSERT (len == 56);
349
350 header->main_section = bfd_getb32 (buf);
351 header->main_offset = bfd_getb32 (buf + 4);
352 header->init_section = bfd_getb32 (buf + 8);
353 header->init_offset = bfd_getb32 (buf + 12);
354 header->term_section = bfd_getb32 (buf + 16);
355 header->term_offset = bfd_getb32 (buf + 20);
356 header->imported_library_count = bfd_getb32 (buf + 24);
357 header->total_imported_symbol_count = bfd_getb32 (buf + 28);
358 header->reloc_section_count = bfd_getb32 (buf + 32);
359 header->reloc_instr_offset = bfd_getb32 (buf + 36);
360 header->loader_strings_offset = bfd_getb32 (buf + 40);
361 header->export_hash_offset = bfd_getb32 (buf + 44);
362 header->export_hash_table_power = bfd_getb32 (buf + 48);
363 header->exported_symbol_count = bfd_getb32 (buf + 52);
364
365 return 0;
366 }
367
368 int bfd_pef_parse_imported_library (abfd, buf, len, header)
369 bfd *abfd ATTRIBUTE_UNUSED;
370 unsigned char *buf;
371 size_t len;
372 bfd_pef_imported_library *header;
373 {
374 BFD_ASSERT (len == 24);
375
376 header->name_offset = bfd_getb32 (buf);
377 header->old_implementation_version = bfd_getb32 (buf + 4);
378 header->current_version = bfd_getb32 (buf + 8);
379 header->imported_symbol_count = bfd_getb32 (buf + 12);
380 header->first_imported_symbol = bfd_getb32 (buf + 16);
381 header->options = buf[20];
382 header->reserved_a = buf[21];
383 header->reserved_b = bfd_getb16 (buf + 22);
384
385 return 0;
386 }
387
388 int bfd_pef_parse_imported_symbol (abfd, buf, len, symbol)
389 bfd *abfd ATTRIBUTE_UNUSED;
390 unsigned char *buf;
391 size_t len;
392 bfd_pef_imported_symbol *symbol;
393 {
394 unsigned long value;
395
396 BFD_ASSERT (len == 4);
397
398 value = bfd_getb32 (buf);
399 symbol->class = value >> 24;
400 symbol->name = value & 0x00ffffff;
401
402 return 0;
403 }
404
405 int bfd_pef_scan_section (abfd, section)
406 bfd *abfd;
407 bfd_pef_section *section;
408 {
409 unsigned char buf[28];
410
411 bfd_seek (abfd, section->header_offset, SEEK_SET);
412 if (bfd_bread ((PTR) buf, 28, abfd) != 28)
413 return -1;
414
415 section->name_offset = bfd_h_get_32 (abfd, buf);
416 section->default_address = bfd_h_get_32 (abfd, buf + 4);
417 section->total_length = bfd_h_get_32 (abfd, buf + 8);
418 section->unpacked_length = bfd_h_get_32 (abfd, buf + 12);
419 section->container_length = bfd_h_get_32 (abfd, buf + 16);
420 section->container_offset = bfd_h_get_32 (abfd, buf + 20);
421 section->section_kind = buf[24];
422 section->share_kind = buf[25];
423 section->alignment = buf[26];
424 section->reserved = buf[27];
425
426 section->bfd_section = bfd_pef_make_bfd_section (abfd, section);
427 if (section->bfd_section == NULL)
428 return -1;
429
430 return 0;
431 }
432
433 void
434 bfd_pef_print_loader_header (abfd, header, file)
435 bfd *abfd ATTRIBUTE_UNUSED;
436 bfd_pef_loader_header *header;
437 FILE *file;
438 {
439 fprintf (file, "main_section: %ld\n", header->main_section);
440 fprintf (file, "main_offset: %lu\n", header->main_offset);
441 fprintf (file, "init_section: %ld\n", header->init_section);
442 fprintf (file, "init_offset: %lu\n", header->init_offset);
443 fprintf (file, "term_section: %ld\n", header->term_section);
444 fprintf (file, "term_offset: %lu\n", header->term_offset);
445 fprintf (file, "imported_library_count: %lu\n",
446 header->imported_library_count);
447 fprintf (file, "total_imported_symbol_count: %lu\n",
448 header->total_imported_symbol_count);
449 fprintf (file, "reloc_section_count: %lu\n", header->reloc_section_count);
450 fprintf (file, "reloc_instr_offset: %lu\n", header->reloc_instr_offset);
451 fprintf (file, "loader_strings_offset: %lu\n",
452 header->loader_strings_offset);
453 fprintf (file, "export_hash_offset: %lu\n", header->export_hash_offset);
454 fprintf (file, "export_hash_table_power: %lu\n",
455 header->export_hash_table_power);
456 fprintf (file, "exported_symbol_count: %lu\n",
457 header->exported_symbol_count);
458 }
459
460 int
461 bfd_pef_print_loader_section (abfd, file)
462 bfd *abfd;
463 FILE *file;
464 {
465 bfd_pef_loader_header header;
466 asection *loadersec = NULL;
467 unsigned char *loaderbuf = NULL;
468 size_t loaderlen = 0;
469 int ret;
470
471 loadersec = bfd_get_section_by_name (abfd, "loader");
472 if (loadersec == NULL)
473 return -1;
474
475 loaderlen = loadersec->size;
476 loaderbuf = (unsigned char *) bfd_malloc (loaderlen);
477 if (bfd_seek (abfd, loadersec->filepos, SEEK_SET) < 0)
478 {
479 free (loaderbuf);
480 return -1;
481 }
482 if (bfd_bread ((PTR) loaderbuf, loaderlen, abfd) != loaderlen)
483 {
484 free (loaderbuf);
485 return -1;
486 }
487
488 if (loaderlen < 56)
489 {
490 free (loaderbuf);
491 return -1;
492 }
493 ret = bfd_pef_parse_loader_header (abfd, loaderbuf, 56, &header);
494 if (ret < 0)
495 {
496 free (loaderbuf);
497 return -1;
498 }
499
500 bfd_pef_print_loader_header (abfd, &header, file);
501 return 0;
502 }
503
504 int
505 bfd_pef_scan_start_address (abfd)
506 bfd *abfd;
507 {
508 bfd_pef_loader_header header;
509 asection *section;
510
511 asection *loadersec = NULL;
512 unsigned char *loaderbuf = NULL;
513 size_t loaderlen = 0;
514 int ret;
515
516 loadersec = bfd_get_section_by_name (abfd, "loader");
517 if (loadersec == NULL)
518 goto end;
519
520 loaderlen = loadersec->size;
521 loaderbuf = (unsigned char *) bfd_malloc (loaderlen);
522 if (bfd_seek (abfd, loadersec->filepos, SEEK_SET) < 0)
523 goto error;
524 if (bfd_bread ((PTR) loaderbuf, loaderlen, abfd) != loaderlen)
525 goto error;
526
527 if (loaderlen < 56)
528 goto error;
529 ret = bfd_pef_parse_loader_header (abfd, loaderbuf, 56, &header);
530 if (ret < 0)
531 goto error;
532
533 if (header.main_section < 0)
534 goto end;
535
536 for (section = abfd->sections; section != NULL; section = section->next)
537 if ((section->index + 1) == header.main_section)
538 break;
539
540 if (section == NULL)
541 goto error;
542
543 abfd->start_address = section->vma + header.main_offset;
544
545 end:
546 if (loaderbuf != NULL)
547 free (loaderbuf);
548 return 0;
549
550 error:
551 if (loaderbuf != NULL)
552 free (loaderbuf);
553 return -1;
554 }
555
556 int
557 bfd_pef_scan (abfd, header, mdata)
558 bfd *abfd;
559 bfd_pef_header *header;
560 bfd_pef_data_struct *mdata;
561 {
562 unsigned int i;
563 enum bfd_architecture cputype;
564 unsigned long cpusubtype;
565
566 mdata->header = *header;
567
568 bfd_pef_convert_architecture (header->architecture, &cputype, &cpusubtype);
569 if (cputype == bfd_arch_unknown)
570 {
571 fprintf (stderr, "bfd_pef_scan: unknown architecture 0x%lx\n",
572 header->architecture);
573 return -1;
574 }
575 bfd_set_arch_mach (abfd, cputype, cpusubtype);
576
577 mdata->header = *header;
578
579 abfd->flags = (abfd->xvec->object_flags
580 | (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS)));
581
582 if (header->section_count != 0)
583 {
584 mdata->sections =
585 ((bfd_pef_section *)
586 bfd_alloc (abfd, header->section_count * sizeof (bfd_pef_section)));
587
588 if (mdata->sections == NULL)
589 return -1;
590
591 for (i = 0; i < header->section_count; i++)
592 {
593 bfd_pef_section *cur = &mdata->sections[i];
594 cur->header_offset = 40 + (i * 28);
595 if (bfd_pef_scan_section (abfd, cur) < 0)
596 return -1;
597 }
598 }
599
600 if (bfd_pef_scan_start_address (abfd) < 0)
601 {
602 #if 0
603 fprintf (stderr, "bfd_pef_scan: unable to scan start address: %s\n",
604 bfd_errmsg (bfd_get_error ()));
605 return -1;
606 #endif
607 }
608
609 abfd->tdata.pef_data = mdata;
610
611 return 0;
612 }
613
614 static int
615 bfd_pef_read_header (abfd, header)
616 bfd *abfd;
617 bfd_pef_header *header;
618 {
619 unsigned char buf[40];
620
621 bfd_seek (abfd, 0, SEEK_SET);
622
623 if (bfd_bread ((PTR) buf, 40, abfd) != 40)
624 return -1;
625
626 header->tag1 = bfd_getb32 (buf);
627 header->tag2 = bfd_getb32 (buf + 4);
628 header->architecture = bfd_getb32 (buf + 8);
629 header->format_version = bfd_getb32 (buf + 12);
630 header->timestamp = bfd_getb32 (buf + 16);
631 header->old_definition_version = bfd_getb32 (buf + 20);
632 header->old_implementation_version = bfd_getb32 (buf + 24);
633 header->current_version = bfd_getb32 (buf + 28);
634 header->section_count = bfd_getb32 (buf + 32) + 1;
635 header->instantiated_section_count = bfd_getb32 (buf + 34);
636 header->reserved = bfd_getb32 (buf + 36);
637
638 return 0;
639 }
640
641 static const bfd_target *
642 bfd_pef_object_p (abfd)
643 bfd *abfd;
644 {
645 struct bfd_preserve preserve;
646 bfd_pef_header header;
647
648 preserve.marker = NULL;
649 if (bfd_pef_read_header (abfd, &header) != 0)
650 goto wrong;
651
652 if (header.tag1 != BFD_PEF_TAG1 || header.tag2 != BFD_PEF_TAG2)
653 goto wrong;
654
655 preserve.marker = bfd_zalloc (abfd, sizeof (bfd_pef_data_struct));
656 if (preserve.marker == NULL
657 || !bfd_preserve_save (abfd, &preserve))
658 goto fail;
659
660 if (bfd_pef_scan (abfd, &header,
661 (bfd_pef_data_struct *) preserve.marker) != 0)
662 goto wrong;
663
664 bfd_preserve_finish (abfd, &preserve);
665 return abfd->xvec;
666
667 wrong:
668 bfd_set_error (bfd_error_wrong_format);
669
670 fail:
671 if (preserve.marker != NULL)
672 bfd_preserve_restore (abfd, &preserve);
673 return NULL;
674 }
675
676 static int bfd_pef_parse_traceback_tables (abfd, sec, buf, len, nsym, csym)
677 bfd *abfd;
678 asection *sec;
679 unsigned char *buf;
680 size_t len;
681 long *nsym;
682 asymbol **csym;
683 {
684 char *name;
685
686 asymbol function;
687 asymbol traceback;
688
689 const char *const tbprefix = "__traceback_";
690 size_t tbnamelen;
691
692 size_t pos = 0;
693 unsigned long count = 0;
694 int ret;
695
696 for (;;)
697 {
698 /* We're reading symbols two at a time. */
699 if (csym && ((csym[count] == NULL) || (csym[count + 1] == NULL)))
700 break;
701
702 pos += 3;
703 pos -= (pos % 4);
704
705 while ((pos + 4) <= len)
706 {
707 if (bfd_getb32 (buf + pos) == 0)
708 break;
709 pos += 4;
710 }
711
712 if ((pos + 4) > len)
713 break;
714
715 ret = bfd_pef_parse_traceback_table (abfd, sec, buf, len, pos + 4,
716 &function, 0);
717 if (ret < 0)
718 {
719 /* Skip over 0x0L to advance to next possible traceback table. */
720 pos += 4;
721 continue;
722 }
723
724 BFD_ASSERT (function.name != NULL);
725
726 /* Don't bother to compute the name if we are just
727 counting symbols. */
728
729 if (csym)
730 {
731 tbnamelen = strlen (tbprefix) + strlen (function.name);
732 name = bfd_alloc (abfd, tbnamelen + 1);
733 if (name == NULL)
734 {
735 bfd_release (abfd, (PTR) function.name);
736 function.name = NULL;
737 break;
738 }
739 snprintf (name, tbnamelen + 1, "%s%s", tbprefix, function.name);
740 traceback.name = name;
741 traceback.value = pos;
742 traceback.the_bfd = abfd;
743 traceback.section = sec;
744 traceback.flags = 0;
745 traceback.udata.i = ret;
746
747 *(csym[count]) = function;
748 *(csym[count + 1]) = traceback;
749 }
750
751 pos += ret;
752 count += 2;
753 }
754
755 *nsym = count;
756 return 0;
757 }
758
759 static int bfd_pef_parse_function_stub (abfd, buf, len, offset)
760 bfd *abfd ATTRIBUTE_UNUSED;
761 unsigned char *buf;
762 size_t len;
763 unsigned long *offset;
764 {
765 BFD_ASSERT (len == 24);
766
767 if ((bfd_getb32 (buf) & 0xffff0000) != 0x81820000)
768 return -1;
769 if (bfd_getb32 (buf + 4) != 0x90410014)
770 return -1;
771 if (bfd_getb32 (buf + 8) != 0x800c0000)
772 return -1;
773 if (bfd_getb32 (buf + 12) != 0x804c0004)
774 return -1;
775 if (bfd_getb32 (buf + 16) != 0x7c0903a6)
776 return -1;
777 if (bfd_getb32 (buf + 20) != 0x4e800420)
778 return -1;
779
780 if (offset != NULL)
781 *offset = (bfd_getb32 (buf) & 0x0000ffff) / 4;
782
783 return 0;
784 }
785
786 static int bfd_pef_parse_function_stubs (abfd, codesec, codebuf, codelen,
787 loaderbuf, loaderlen, nsym, csym)
788 bfd *abfd;
789 asection *codesec;
790 unsigned char *codebuf;
791 size_t codelen;
792 unsigned char *loaderbuf;
793 size_t loaderlen;
794 unsigned long *nsym;
795 asymbol **csym;
796 {
797 const char *const sprefix = "__stub_";
798
799 size_t codepos = 0;
800 unsigned long count = 0;
801
802 bfd_pef_loader_header header;
803 bfd_pef_imported_library *libraries = NULL;
804 bfd_pef_imported_symbol *imports = NULL;
805
806 unsigned long i;
807 int ret;
808
809 if (loaderlen < 56)
810 goto error;
811
812 ret = bfd_pef_parse_loader_header (abfd, loaderbuf, 56, &header);
813 if (ret < 0)
814 goto error;
815
816 libraries = (bfd_pef_imported_library *) bfd_malloc
817 (header.imported_library_count * sizeof (bfd_pef_imported_library));
818 imports = (bfd_pef_imported_symbol *) bfd_malloc
819 (header.total_imported_symbol_count * sizeof (bfd_pef_imported_symbol));
820
821 if (loaderlen < (56 + (header.imported_library_count * 24)))
822 goto error;
823 for (i = 0; i < header.imported_library_count; i++)
824 {
825 ret = bfd_pef_parse_imported_library
826 (abfd, loaderbuf + 56 + (i * 24), 24, &libraries[i]);
827 if (ret < 0)
828 goto error;
829 }
830
831 if (loaderlen < (56 + (header.imported_library_count * 24)
832 + (header.total_imported_symbol_count * 4)))
833 goto error;
834 for (i = 0; i < header.total_imported_symbol_count; i++)
835 {
836 ret = (bfd_pef_parse_imported_symbol
837 (abfd,
838 loaderbuf + 56 + (header.imported_library_count * 24) + (i * 4),
839 4, &imports[i]));
840 if (ret < 0)
841 goto error;
842 }
843
844 codepos = 0;
845
846 for (;;)
847 {
848 asymbol sym;
849 const char *symname;
850 char *name;
851 unsigned long index;
852 int ret;
853
854 if (csym && (csym[count] == NULL))
855 break;
856
857 codepos += 3;
858 codepos -= (codepos % 4);
859
860 while ((codepos + 4) <= codelen)
861 {
862 if ((bfd_getb32 (codebuf + codepos) & 0xffff0000) == 0x81820000)
863 break;
864 codepos += 4;
865 }
866
867 if ((codepos + 4) > codelen)
868 break;
869
870 ret = bfd_pef_parse_function_stub (abfd, codebuf + codepos, 24, &index);
871 if (ret < 0)
872 {
873 codepos += 24;
874 continue;
875 }
876
877 if (index >= header.total_imported_symbol_count)
878 {
879 codepos += 24;
880 continue;
881 }
882
883 {
884 size_t max, namelen;
885 const char *s;
886
887 if (loaderlen < (header.loader_strings_offset + imports[index].name))
888 goto error;
889
890 max = loaderlen - (header.loader_strings_offset + imports[index].name);
891 symname = loaderbuf + header.loader_strings_offset + imports[index].name;
892 namelen = 0;
893 for (s = symname; s < (symname + max); s++)
894 {
895 if (*s == '\0')
896 break;
897 if (! ISPRINT (*s))
898 goto error;
899 namelen++;
900 }
901 if (*s != '\0')
902 goto error;
903
904 name = bfd_alloc (abfd, strlen (sprefix) + namelen + 1);
905 if (name == NULL)
906 break;
907
908 snprintf (name, strlen (sprefix) + namelen + 1, "%s%s",
909 sprefix, symname);
910 sym.name = name;
911 }
912
913 sym.value = codepos;
914 sym.the_bfd = abfd;
915 sym.section = codesec;
916 sym.flags = 0;
917 sym.udata.i = 0;
918
919 codepos += 24;
920
921 if (csym != NULL)
922 *(csym[count]) = sym;
923
924 count++;
925 }
926
927 goto end;
928
929 end:
930 if (libraries != NULL)
931 free (libraries);
932 if (imports != NULL)
933 free (imports);
934 *nsym = count;
935 return 0;
936
937 error:
938 if (libraries != NULL)
939 free (libraries);
940 if (imports != NULL)
941 free (imports);
942 *nsym = count;
943 return -1;
944 }
945
946 static long bfd_pef_parse_symbols (abfd, csym)
947 bfd *abfd;
948 asymbol **csym;
949 {
950 unsigned long count = 0;
951
952 asection *codesec = NULL;
953 unsigned char *codebuf = NULL;
954 size_t codelen = 0;
955
956 asection *loadersec = NULL;
957 unsigned char *loaderbuf = NULL;
958 size_t loaderlen = 0;
959
960 codesec = bfd_get_section_by_name (abfd, "code");
961 if (codesec != NULL)
962 {
963 codelen = codesec->size;
964 codebuf = (unsigned char *) bfd_malloc (codelen);
965 if (bfd_seek (abfd, codesec->filepos, SEEK_SET) < 0)
966 goto end;
967 if (bfd_bread ((PTR) codebuf, codelen, abfd) != codelen)
968 goto end;
969 }
970
971 loadersec = bfd_get_section_by_name (abfd, "loader");
972 if (loadersec != NULL)
973 {
974 loaderlen = loadersec->size;
975 loaderbuf = (unsigned char *) bfd_malloc (loaderlen);
976 if (bfd_seek (abfd, loadersec->filepos, SEEK_SET) < 0)
977 goto end;
978 if (bfd_bread ((PTR) loaderbuf, loaderlen, abfd) != loaderlen)
979 goto end;
980 }
981
982 count = 0;
983 if (codesec != NULL)
984 {
985 unsigned long ncount = 0;
986 bfd_pef_parse_traceback_tables (abfd, codesec, codebuf, codelen,
987 &ncount, csym);
988 count += ncount;
989 }
990
991 if ((codesec != NULL) && (loadersec != NULL))
992 {
993 unsigned long ncount = 0;
994 bfd_pef_parse_function_stubs
995 (abfd, codesec, codebuf, codelen, loaderbuf, loaderlen, &ncount,
996 (csym != NULL) ? (csym + count) : NULL);
997 count += ncount;
998 }
999
1000 if (csym != NULL)
1001 csym[count] = NULL;
1002
1003 end:
1004 if (codebuf != NULL)
1005 free (codebuf);
1006
1007 if (loaderbuf != NULL)
1008 free (loaderbuf);
1009
1010 return count;
1011 }
1012
1013 static long
1014 bfd_pef_count_symbols (abfd)
1015 bfd *abfd;
1016 {
1017 return bfd_pef_parse_symbols (abfd, NULL);
1018 }
1019
1020 static long
1021 bfd_pef_get_symtab_upper_bound (abfd)
1022 bfd *abfd;
1023 {
1024 long nsyms = bfd_pef_count_symbols (abfd);
1025 if (nsyms < 0)
1026 return nsyms;
1027 return ((nsyms + 1) * sizeof (asymbol *));
1028 }
1029
1030 static long
1031 bfd_pef_canonicalize_symtab (abfd, alocation)
1032 bfd *abfd;
1033 asymbol **alocation;
1034 {
1035 long i;
1036 asymbol *syms;
1037 long ret;
1038
1039 long nsyms = bfd_pef_count_symbols (abfd);
1040 if (nsyms < 0)
1041 return nsyms;
1042
1043 syms = bfd_alloc (abfd, nsyms * sizeof (asymbol));
1044 if (syms == NULL)
1045 return -1;
1046
1047 for (i = 0; i < nsyms; i++)
1048 alocation[i] = &syms[i];
1049
1050 alocation[nsyms] = NULL;
1051
1052 ret = bfd_pef_parse_symbols (abfd, alocation);
1053 if (ret != nsyms)
1054 return 0;
1055
1056 return ret;
1057 }
1058
1059 static asymbol *
1060 bfd_pef_make_empty_symbol (abfd)
1061 bfd *abfd;
1062 {
1063 return (asymbol *) bfd_alloc (abfd, sizeof (asymbol));
1064 }
1065
1066 static void
1067 bfd_pef_get_symbol_info (abfd, symbol, ret)
1068 bfd *abfd ATTRIBUTE_UNUSED;
1069 asymbol *symbol;
1070 symbol_info *ret;
1071 {
1072 bfd_symbol_info (symbol, ret);
1073 }
1074
1075 static int
1076 bfd_pef_sizeof_headers (abfd, exec)
1077 bfd *abfd ATTRIBUTE_UNUSED;
1078 bfd_boolean exec ATTRIBUTE_UNUSED;
1079 {
1080 return 0;
1081 }
1082
1083 const bfd_target pef_vec =
1084 {
1085 "pef", /* name */
1086 bfd_target_pef_flavour, /* flavour */
1087 BFD_ENDIAN_BIG, /* byteorder */
1088 BFD_ENDIAN_BIG, /* header_byteorder */
1089 (HAS_RELOC | EXEC_P | /* object flags */
1090 HAS_LINENO | HAS_DEBUG |
1091 HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
1092 (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | SEC_DATA
1093 | SEC_ROM | SEC_HAS_CONTENTS), /* section_flags */
1094 0, /* symbol_leading_char */
1095 ' ', /* ar_pad_char */
1096 16, /* ar_max_namelen */
1097 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1098 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1099 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
1100 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1101 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1102 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
1103 { /* bfd_check_format */
1104 _bfd_dummy_target,
1105 bfd_pef_object_p, /* bfd_check_format */
1106 _bfd_dummy_target,
1107 _bfd_dummy_target,
1108 },
1109 { /* bfd_set_format */
1110 bfd_false,
1111 bfd_pef_mkobject,
1112 bfd_false,
1113 bfd_false,
1114 },
1115 { /* bfd_write_contents */
1116 bfd_false,
1117 bfd_true,
1118 bfd_false,
1119 bfd_false,
1120 },
1121
1122 BFD_JUMP_TABLE_GENERIC (bfd_pef),
1123 BFD_JUMP_TABLE_COPY (_bfd_generic),
1124 BFD_JUMP_TABLE_CORE (_bfd_nocore),
1125 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
1126 BFD_JUMP_TABLE_SYMBOLS (bfd_pef),
1127 BFD_JUMP_TABLE_RELOCS (bfd_pef),
1128 BFD_JUMP_TABLE_WRITE (bfd_pef),
1129 BFD_JUMP_TABLE_LINK (bfd_pef),
1130 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
1131
1132 NULL,
1133
1134 NULL
1135 };
1136
1137 #define bfd_pef_xlib_close_and_cleanup _bfd_generic_close_and_cleanup
1138 #define bfd_pef_xlib_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
1139 #define bfd_pef_xlib_new_section_hook _bfd_generic_new_section_hook
1140 #define bfd_pef_xlib_get_section_contents _bfd_generic_get_section_contents
1141 #define bfd_pef_xlib_set_section_contents _bfd_generic_set_section_contents
1142 #define bfd_pef_xlib_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
1143 #define bfd_pef_xlib_set_section_contents_in_window _bfd_generic_set_section_contents_in_window
1144
1145 static int
1146 bfd_pef_xlib_read_header (abfd, header)
1147 bfd *abfd;
1148 bfd_pef_xlib_header *header;
1149 {
1150 unsigned char buf[76];
1151
1152 bfd_seek (abfd, 0, SEEK_SET);
1153
1154 if (bfd_bread ((PTR) buf, 76, abfd) != 76)
1155 return -1;
1156
1157 header->tag1 = bfd_getb32 (buf);
1158 header->tag2 = bfd_getb32 (buf + 4);
1159 header->current_format = bfd_getb32 (buf + 8);
1160 header->container_strings_offset = bfd_getb32 (buf + 12);
1161 header->export_hash_offset = bfd_getb32 (buf + 16);
1162 header->export_key_offset = bfd_getb32 (buf + 20);
1163 header->export_symbol_offset = bfd_getb32 (buf + 24);
1164 header->export_names_offset = bfd_getb32 (buf + 28);
1165 header->export_hash_table_power = bfd_getb32 (buf + 32);
1166 header->exported_symbol_count = bfd_getb32 (buf + 36);
1167 header->frag_name_offset = bfd_getb32 (buf + 40);
1168 header->frag_name_length = bfd_getb32 (buf + 44);
1169 header->dylib_path_offset = bfd_getb32 (buf + 48);
1170 header->dylib_path_length = bfd_getb32 (buf + 52);
1171 header->cpu_family = bfd_getb32 (buf + 56);
1172 header->cpu_model = bfd_getb32 (buf + 60);
1173 header->date_time_stamp = bfd_getb32 (buf + 64);
1174 header->current_version = bfd_getb32 (buf + 68);
1175 header->old_definition_version = bfd_getb32 (buf + 72);
1176 header->old_implementation_version = bfd_getb32 (buf + 76);
1177
1178 return 0;
1179 }
1180
1181 int
1182 bfd_pef_xlib_scan (abfd, header)
1183 bfd *abfd;
1184 bfd_pef_xlib_header *header;
1185 {
1186 bfd_pef_xlib_data_struct *mdata = NULL;
1187
1188 mdata = ((bfd_pef_xlib_data_struct *)
1189 bfd_alloc (abfd, sizeof (bfd_pef_xlib_data_struct)));
1190 if (mdata == NULL)
1191 return -1;
1192
1193 mdata->header = *header;
1194
1195 abfd->flags = (abfd->xvec->object_flags
1196 | (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS)));
1197
1198 abfd->tdata.pef_xlib_data = mdata;
1199
1200 return 0;
1201 }
1202
1203 static const bfd_target *
1204 bfd_pef_xlib_object_p (abfd)
1205 bfd *abfd;
1206 {
1207 struct bfd_preserve preserve;
1208 bfd_pef_xlib_header header;
1209
1210 if (bfd_pef_xlib_read_header (abfd, &header) != 0)
1211 {
1212 bfd_set_error (bfd_error_wrong_format);
1213 return NULL;
1214 }
1215
1216 if ((header.tag1 != BFD_PEF_XLIB_TAG1)
1217 || ((header.tag2 != BFD_PEF_VLIB_TAG2)
1218 && (header.tag2 != BFD_PEF_BLIB_TAG2)))
1219 {
1220 bfd_set_error (bfd_error_wrong_format);
1221 return NULL;
1222 }
1223
1224 if (! bfd_preserve_save (abfd, &preserve))
1225 {
1226 bfd_set_error (bfd_error_wrong_format);
1227 return NULL;
1228 }
1229
1230 if (bfd_pef_xlib_scan (abfd, &header) != 0)
1231 {
1232 bfd_preserve_restore (abfd, &preserve);
1233 bfd_set_error (bfd_error_wrong_format);
1234 return NULL;
1235 }
1236
1237 bfd_preserve_finish (abfd, &preserve);
1238 return abfd->xvec;
1239 }
1240
1241 const bfd_target pef_xlib_vec =
1242 {
1243 "pef-xlib", /* name */
1244 bfd_target_pef_xlib_flavour, /* flavour */
1245 BFD_ENDIAN_BIG, /* byteorder */
1246 BFD_ENDIAN_BIG, /* header_byteorder */
1247 (HAS_RELOC | EXEC_P | /* object flags */
1248 HAS_LINENO | HAS_DEBUG |
1249 HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
1250 (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | SEC_DATA
1251 | SEC_ROM | SEC_HAS_CONTENTS), /* section_flags */
1252 0, /* symbol_leading_char */
1253 ' ', /* ar_pad_char */
1254 16, /* ar_max_namelen */
1255 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1256 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1257 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
1258 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1259 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1260 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
1261 { /* bfd_check_format */
1262 _bfd_dummy_target,
1263 bfd_pef_xlib_object_p, /* bfd_check_format */
1264 _bfd_dummy_target,
1265 _bfd_dummy_target,
1266 },
1267 { /* bfd_set_format */
1268 bfd_false,
1269 bfd_pef_mkobject,
1270 bfd_false,
1271 bfd_false,
1272 },
1273 { /* bfd_write_contents */
1274 bfd_false,
1275 bfd_true,
1276 bfd_false,
1277 bfd_false,
1278 },
1279
1280 BFD_JUMP_TABLE_GENERIC (bfd_pef_xlib),
1281 BFD_JUMP_TABLE_COPY (_bfd_generic),
1282 BFD_JUMP_TABLE_CORE (_bfd_nocore),
1283 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
1284 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
1285 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
1286 BFD_JUMP_TABLE_WRITE (_bfd_nowrite),
1287 BFD_JUMP_TABLE_LINK (_bfd_nolink),
1288 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
1289
1290 NULL,
1291
1292 NULL
1293 };
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