lto test fails with -fno-inline in CFLAGS
[binutils-gdb.git] / bfd / peicode.h
1 /* Support for the generic parts of PE/PEI, for BFD.
2 Copyright (C) 1995-2023 Free Software Foundation, Inc.
3 Written by Cygnus Solutions.
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 3 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., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
21
22
23 /* Most of this hacked by Steve Chamberlain,
24 sac@cygnus.com
25
26 PE/PEI rearrangement (and code added): Donn Terry
27 Softway Systems, Inc. */
28
29 /* Hey look, some documentation [and in a place you expect to find it]!
30
31 The main reference for the pei format is "Microsoft Portable Executable
32 and Common Object File Format Specification 4.1". Get it if you need to
33 do some serious hacking on this code.
34
35 Another reference:
36 "Peering Inside the PE: A Tour of the Win32 Portable Executable
37 File Format", MSJ 1994, Volume 9.
38
39 The *sole* difference between the pe format and the pei format is that the
40 latter has an MSDOS 2.0 .exe header on the front that prints the message
41 "This app must be run under Windows." (or some such).
42 (FIXME: Whether that statement is *really* true or not is unknown.
43 Are there more subtle differences between pe and pei formats?
44 For now assume there aren't. If you find one, then for God sakes
45 document it here!)
46
47 The Microsoft docs use the word "image" instead of "executable" because
48 the former can also refer to a DLL (shared library). Confusion can arise
49 because the `i' in `pei' also refers to "image". The `pe' format can
50 also create images (i.e. executables), it's just that to run on a win32
51 system you need to use the pei format.
52
53 FIXME: Please add more docs here so the next poor fool that has to hack
54 on this code has a chance of getting something accomplished without
55 wasting too much time. */
56
57 #include "libpei.h"
58
59 static bool (*pe_saved_coff_bfd_print_private_bfd_data) (bfd *, void *) =
60 #ifndef coff_bfd_print_private_bfd_data
61 NULL;
62 #else
63 coff_bfd_print_private_bfd_data;
64 #undef coff_bfd_print_private_bfd_data
65 #endif
66
67 static bool pe_print_private_bfd_data (bfd *, void *);
68 #define coff_bfd_print_private_bfd_data pe_print_private_bfd_data
69
70 static bool (*pe_saved_coff_bfd_copy_private_bfd_data) (bfd *, bfd *) =
71 #ifndef coff_bfd_copy_private_bfd_data
72 NULL;
73 #else
74 coff_bfd_copy_private_bfd_data;
75 #undef coff_bfd_copy_private_bfd_data
76 #endif
77
78 static bool pe_bfd_copy_private_bfd_data (bfd *, bfd *);
79 #define coff_bfd_copy_private_bfd_data pe_bfd_copy_private_bfd_data
80
81 #define coff_mkobject pe_mkobject
82 #define coff_mkobject_hook pe_mkobject_hook
83
84 #ifdef COFF_IMAGE_WITH_PE
85 /* This structure contains static variables used by the ILF code. */
86 typedef asection * asection_ptr;
87
88 typedef struct
89 {
90 bfd * abfd;
91 bfd_byte * data;
92 struct bfd_in_memory * bim;
93 unsigned short magic;
94
95 arelent * reltab;
96 unsigned int relcount;
97
98 coff_symbol_type * sym_cache;
99 coff_symbol_type * sym_ptr;
100 unsigned int sym_index;
101
102 unsigned int * sym_table;
103 unsigned int * table_ptr;
104
105 combined_entry_type * native_syms;
106 combined_entry_type * native_ptr;
107
108 coff_symbol_type ** sym_ptr_table;
109 coff_symbol_type ** sym_ptr_ptr;
110
111 unsigned int sec_index;
112
113 char * string_table;
114 char * string_ptr;
115 char * end_string_ptr;
116
117 SYMENT * esym_table;
118 SYMENT * esym_ptr;
119
120 struct internal_reloc * int_reltab;
121 }
122 pe_ILF_vars;
123 #endif /* COFF_IMAGE_WITH_PE */
124
125 bfd_cleanup coff_real_object_p
126 (bfd *, unsigned, struct internal_filehdr *, struct internal_aouthdr *);
127 \f
128 #ifndef NO_COFF_RELOCS
129 static void
130 coff_swap_reloc_in (bfd * abfd, void * src, void * dst)
131 {
132 RELOC *reloc_src = (RELOC *) src;
133 struct internal_reloc *reloc_dst = (struct internal_reloc *) dst;
134
135 reloc_dst->r_vaddr = H_GET_32 (abfd, reloc_src->r_vaddr);
136 reloc_dst->r_symndx = H_GET_S32 (abfd, reloc_src->r_symndx);
137 reloc_dst->r_type = H_GET_16 (abfd, reloc_src->r_type);
138 #ifdef SWAP_IN_RELOC_OFFSET
139 reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET (abfd, reloc_src->r_offset);
140 #endif
141 }
142
143 static unsigned int
144 coff_swap_reloc_out (bfd * abfd, void * src, void * dst)
145 {
146 struct internal_reloc *reloc_src = (struct internal_reloc *) src;
147 struct external_reloc *reloc_dst = (struct external_reloc *) dst;
148
149 H_PUT_32 (abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr);
150 H_PUT_32 (abfd, reloc_src->r_symndx, reloc_dst->r_symndx);
151 H_PUT_16 (abfd, reloc_src->r_type, reloc_dst->r_type);
152
153 #ifdef SWAP_OUT_RELOC_OFFSET
154 SWAP_OUT_RELOC_OFFSET (abfd, reloc_src->r_offset, reloc_dst->r_offset);
155 #endif
156 #ifdef SWAP_OUT_RELOC_EXTRA
157 SWAP_OUT_RELOC_EXTRA (abfd, reloc_src, reloc_dst);
158 #endif
159 return RELSZ;
160 }
161 #endif /* not NO_COFF_RELOCS */
162
163 #ifdef COFF_IMAGE_WITH_PE
164 #undef FILHDR
165 #define FILHDR struct external_PEI_IMAGE_hdr
166 #endif
167
168 static void
169 coff_swap_filehdr_in (bfd * abfd, void * src, void * dst)
170 {
171 FILHDR *filehdr_src = (FILHDR *) src;
172 struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst;
173
174 filehdr_dst->f_magic = H_GET_16 (abfd, filehdr_src->f_magic);
175 filehdr_dst->f_nscns = H_GET_16 (abfd, filehdr_src->f_nscns);
176 filehdr_dst->f_timdat = H_GET_32 (abfd, filehdr_src->f_timdat);
177 filehdr_dst->f_nsyms = H_GET_32 (abfd, filehdr_src->f_nsyms);
178 filehdr_dst->f_flags = H_GET_16 (abfd, filehdr_src->f_flags);
179 filehdr_dst->f_symptr = H_GET_32 (abfd, filehdr_src->f_symptr);
180
181 /* Other people's tools sometimes generate headers with an nsyms but
182 a zero symptr. */
183 if (filehdr_dst->f_nsyms != 0 && filehdr_dst->f_symptr == 0)
184 {
185 filehdr_dst->f_nsyms = 0;
186 filehdr_dst->f_flags |= F_LSYMS;
187 }
188
189 filehdr_dst->f_opthdr = H_GET_16 (abfd, filehdr_src-> f_opthdr);
190 }
191
192 #ifdef COFF_IMAGE_WITH_PE
193 # define coff_swap_filehdr_out _bfd_XXi_only_swap_filehdr_out
194 #elif defined COFF_WITH_peAArch64
195 # define coff_swap_filehdr_out _bfd_XX_only_swap_filehdr_out
196 #elif defined COFF_WITH_pex64
197 # define coff_swap_filehdr_out _bfd_pex64_only_swap_filehdr_out
198 #elif defined COFF_WITH_pep
199 # define coff_swap_filehdr_out _bfd_pep_only_swap_filehdr_out
200 #else
201 # define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out
202 #endif
203
204 static void
205 coff_swap_scnhdr_in (bfd * abfd, void * ext, void * in)
206 {
207 SCNHDR *scnhdr_ext = (SCNHDR *) ext;
208 struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in;
209
210 memcpy (scnhdr_int->s_name, scnhdr_ext->s_name, sizeof (scnhdr_int->s_name));
211
212 scnhdr_int->s_vaddr = GET_SCNHDR_VADDR (abfd, scnhdr_ext->s_vaddr);
213 scnhdr_int->s_paddr = GET_SCNHDR_PADDR (abfd, scnhdr_ext->s_paddr);
214 scnhdr_int->s_size = GET_SCNHDR_SIZE (abfd, scnhdr_ext->s_size);
215 scnhdr_int->s_scnptr = GET_SCNHDR_SCNPTR (abfd, scnhdr_ext->s_scnptr);
216 scnhdr_int->s_relptr = GET_SCNHDR_RELPTR (abfd, scnhdr_ext->s_relptr);
217 scnhdr_int->s_lnnoptr = GET_SCNHDR_LNNOPTR (abfd, scnhdr_ext->s_lnnoptr);
218 scnhdr_int->s_flags = H_GET_32 (abfd, scnhdr_ext->s_flags);
219
220 /* MS handles overflow of line numbers by carrying into the reloc
221 field (it appears). Since it's supposed to be zero for PE
222 *IMAGE* format, that's safe. This is still a bit iffy. */
223 #ifdef COFF_IMAGE_WITH_PE
224 scnhdr_int->s_nlnno = (H_GET_16 (abfd, scnhdr_ext->s_nlnno)
225 + (H_GET_16 (abfd, scnhdr_ext->s_nreloc) << 16));
226 scnhdr_int->s_nreloc = 0;
227 #else
228 scnhdr_int->s_nreloc = H_GET_16 (abfd, scnhdr_ext->s_nreloc);
229 scnhdr_int->s_nlnno = H_GET_16 (abfd, scnhdr_ext->s_nlnno);
230 #endif
231
232 if (scnhdr_int->s_vaddr != 0)
233 {
234 scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase;
235 /* Do not cut upper 32-bits for 64-bit vma. */
236 #if !defined(COFF_WITH_pex64) && !defined(COFF_WITH_peAArch64) && !defined(COFF_WITH_peLoongArch64)
237 scnhdr_int->s_vaddr &= 0xffffffff;
238 #endif
239 }
240
241 #ifndef COFF_NO_HACK_SCNHDR_SIZE
242 /* If this section holds uninitialized data and is from an object file
243 or from an executable image that has not initialized the field,
244 or if the image is an executable file and the physical size is padded,
245 use the virtual size (stored in s_paddr) instead. */
246 if (scnhdr_int->s_paddr > 0
247 && (((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0
248 && (! bfd_pei_p (abfd) || scnhdr_int->s_size == 0))
249 || (bfd_pei_p (abfd) && (scnhdr_int->s_size > scnhdr_int->s_paddr))))
250 /* This code used to set scnhdr_int->s_paddr to 0. However,
251 coff_set_alignment_hook stores s_paddr in virt_size, which
252 only works if it correctly holds the virtual size of the
253 section. */
254 scnhdr_int->s_size = scnhdr_int->s_paddr;
255 #endif
256 }
257
258 static bool
259 pe_mkobject (bfd * abfd)
260 {
261 pe_data_type *pe;
262 size_t amt = sizeof (pe_data_type);
263
264 abfd->tdata.pe_obj_data = (struct pe_tdata *) bfd_zalloc (abfd, amt);
265
266 if (abfd->tdata.pe_obj_data == 0)
267 return false;
268
269 pe = pe_data (abfd);
270
271 pe->coff.pe = 1;
272
273 /* in_reloc_p is architecture dependent. */
274 pe->in_reloc_p = in_reloc_p;
275
276 /* Default DOS message string. */
277 pe->dos_message[0] = 0x0eba1f0e;
278 pe->dos_message[1] = 0xcd09b400;
279 pe->dos_message[2] = 0x4c01b821;
280 pe->dos_message[3] = 0x685421cd;
281 pe->dos_message[4] = 0x70207369;
282 pe->dos_message[5] = 0x72676f72;
283 pe->dos_message[6] = 0x63206d61;
284 pe->dos_message[7] = 0x6f6e6e61;
285 pe->dos_message[8] = 0x65622074;
286 pe->dos_message[9] = 0x6e757220;
287 pe->dos_message[10] = 0x206e6920;
288 pe->dos_message[11] = 0x20534f44;
289 pe->dos_message[12] = 0x65646f6d;
290 pe->dos_message[13] = 0x0a0d0d2e;
291 pe->dos_message[14] = 0x24;
292 pe->dos_message[15] = 0x0;
293
294 memset (& pe->pe_opthdr, 0, sizeof pe->pe_opthdr);
295
296 bfd_coff_long_section_names (abfd)
297 = coff_backend_info (abfd)->_bfd_coff_long_section_names;
298
299 return true;
300 }
301
302 /* Create the COFF backend specific information. */
303
304 static void *
305 pe_mkobject_hook (bfd * abfd,
306 void * filehdr,
307 void * aouthdr ATTRIBUTE_UNUSED)
308 {
309 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
310 pe_data_type *pe;
311
312 if (! pe_mkobject (abfd))
313 return NULL;
314
315 pe = pe_data (abfd);
316 pe->coff.sym_filepos = internal_f->f_symptr;
317 /* These members communicate important constants about the symbol
318 table to GDB's symbol-reading code. These `constants'
319 unfortunately vary among coff implementations... */
320 pe->coff.local_n_btmask = N_BTMASK;
321 pe->coff.local_n_btshft = N_BTSHFT;
322 pe->coff.local_n_tmask = N_TMASK;
323 pe->coff.local_n_tshift = N_TSHIFT;
324 pe->coff.local_symesz = SYMESZ;
325 pe->coff.local_auxesz = AUXESZ;
326 pe->coff.local_linesz = LINESZ;
327
328 pe->coff.timestamp = internal_f->f_timdat;
329
330 obj_raw_syment_count (abfd) =
331 obj_conv_table_size (abfd) =
332 internal_f->f_nsyms;
333
334 pe->real_flags = internal_f->f_flags;
335
336 if ((internal_f->f_flags & F_DLL) != 0)
337 pe->dll = 1;
338
339 if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0)
340 abfd->flags |= HAS_DEBUG;
341
342 #ifdef COFF_IMAGE_WITH_PE
343 if (aouthdr)
344 pe->pe_opthdr = ((struct internal_aouthdr *) aouthdr)->pe;
345 #endif
346
347 #ifdef ARM
348 if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
349 coff_data (abfd) ->flags = 0;
350 #endif
351
352 memcpy (pe->dos_message, internal_f->pe.dos_message,
353 sizeof (pe->dos_message));
354
355 return (void *) pe;
356 }
357
358 static bool
359 pe_print_private_bfd_data (bfd *abfd, void * vfile)
360 {
361 FILE *file = (FILE *) vfile;
362
363 if (!_bfd_XX_print_private_bfd_data_common (abfd, vfile))
364 return false;
365
366 if (pe_saved_coff_bfd_print_private_bfd_data == NULL)
367 return true;
368
369 fputc ('\n', file);
370
371 return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile);
372 }
373
374 /* Copy any private info we understand from the input bfd
375 to the output bfd. */
376
377 static bool
378 pe_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
379 {
380 /* PR binutils/716: Copy the large address aware flag.
381 XXX: Should we be copying other flags or other fields in the pe_data()
382 structure ? */
383 if (pe_data (obfd) != NULL
384 && pe_data (ibfd) != NULL
385 && pe_data (ibfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE)
386 pe_data (obfd)->real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
387
388 if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd, obfd))
389 return false;
390
391 if (pe_saved_coff_bfd_copy_private_bfd_data)
392 return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd);
393
394 return true;
395 }
396
397 #define coff_bfd_copy_private_section_data \
398 _bfd_XX_bfd_copy_private_section_data
399
400 #define coff_get_symbol_info _bfd_XX_get_symbol_info
401
402 #ifdef COFF_IMAGE_WITH_PE
403 \f
404 /* Code to handle Microsoft's Import Library Format.
405 Also known as LINK6 format.
406 Documentation about this format can be found at:
407
408 https://learn.microsoft.com/en-us/windows/win32/debug/pe-format#import-library-format */
409
410 /* The following constants specify the sizes of the various data
411 structures that we have to create in order to build a bfd describing
412 an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6
413 and SIZEOF_IDATA7 below is to allow for the possibility that we might
414 need a padding byte in order to ensure 16 bit alignment for the section's
415 contents.
416
417 The value for SIZEOF_ILF_STRINGS is computed as follows:
418
419 There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters
420 per symbol for their names (longest section name is .idata$x).
421
422 There will be two symbols for the imported value, one the symbol name
423 and one with _imp__ prefixed. Allowing for the terminating nul's this
424 is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll).
425
426 The strings in the string table must start STRING__SIZE_SIZE bytes into
427 the table in order to for the string lookup code in coffgen/coffcode to
428 work. */
429 #define NUM_ILF_RELOCS 8
430 #define NUM_ILF_SECTIONS 6
431 #define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS)
432
433 #define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache))
434 #define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table))
435 #define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms))
436 #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table))
437 #define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table))
438 #define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab))
439 #define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab))
440 #define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \
441 + 21 + strlen (source_dll) \
442 + NUM_ILF_SECTIONS * 9 \
443 + STRING_SIZE_SIZE)
444 #define SIZEOF_IDATA2 (5 * 4)
445
446 /* For PEx64 idata4 & 5 have thumb size of 8 bytes. */
447 #if defined(COFF_WITH_pex64) || defined(COFF_WITH_peAArch64)
448 #define SIZEOF_IDATA4 (2 * 4)
449 #define SIZEOF_IDATA5 (2 * 4)
450 #else
451 #define SIZEOF_IDATA4 (1 * 4)
452 #define SIZEOF_IDATA5 (1 * 4)
453 #endif
454
455 #define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1)
456 #define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1)
457 #define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata))
458
459 #define ILF_DATA_SIZE \
460 + SIZEOF_ILF_SYMS \
461 + SIZEOF_ILF_SYM_TABLE \
462 + SIZEOF_ILF_NATIVE_SYMS \
463 + SIZEOF_ILF_SYM_PTR_TABLE \
464 + SIZEOF_ILF_EXT_SYMS \
465 + SIZEOF_ILF_RELOCS \
466 + SIZEOF_ILF_INT_RELOCS \
467 + SIZEOF_ILF_STRINGS \
468 + SIZEOF_IDATA2 \
469 + SIZEOF_IDATA4 \
470 + SIZEOF_IDATA5 \
471 + SIZEOF_IDATA6 \
472 + SIZEOF_IDATA7 \
473 + SIZEOF_ILF_SECTIONS \
474 + MAX_TEXT_SECTION_SIZE
475
476 /* Create an empty relocation against the given symbol. */
477
478 static void
479 pe_ILF_make_a_symbol_reloc (pe_ILF_vars * vars,
480 bfd_vma address,
481 bfd_reloc_code_real_type reloc,
482 struct bfd_symbol ** sym,
483 unsigned int sym_index)
484 {
485 arelent * entry;
486 struct internal_reloc * internal;
487
488 entry = vars->reltab + vars->relcount;
489 internal = vars->int_reltab + vars->relcount;
490
491 entry->address = address;
492 entry->addend = 0;
493 entry->howto = bfd_reloc_type_lookup (vars->abfd, reloc);
494 entry->sym_ptr_ptr = sym;
495
496 internal->r_vaddr = address;
497 internal->r_symndx = sym_index;
498 internal->r_type = entry->howto ? entry->howto->type : 0;
499
500 vars->relcount ++;
501
502 BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS);
503 }
504
505 /* Create an empty relocation against the given section. */
506
507 static void
508 pe_ILF_make_a_reloc (pe_ILF_vars * vars,
509 bfd_vma address,
510 bfd_reloc_code_real_type reloc,
511 asection_ptr sec)
512 {
513 pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr,
514 coff_section_data (vars->abfd, sec)->i);
515 }
516
517 /* Move the queued relocs into the given section. */
518
519 static void
520 pe_ILF_save_relocs (pe_ILF_vars * vars,
521 asection_ptr sec)
522 {
523 /* Make sure that there is somewhere to store the internal relocs. */
524 if (coff_section_data (vars->abfd, sec) == NULL)
525 /* We should probably return an error indication here. */
526 abort ();
527
528 coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab;
529
530 sec->relocation = vars->reltab;
531 sec->reloc_count = vars->relcount;
532 sec->flags |= SEC_RELOC;
533
534 vars->reltab += vars->relcount;
535 vars->int_reltab += vars->relcount;
536 vars->relcount = 0;
537
538 BFD_ASSERT ((bfd_byte *) vars->int_reltab < (bfd_byte *) vars->string_table);
539 }
540
541 /* Create a global symbol and add it to the relevant tables. */
542
543 static void
544 pe_ILF_make_a_symbol (pe_ILF_vars * vars,
545 const char * prefix,
546 const char * symbol_name,
547 asection_ptr section,
548 flagword extra_flags)
549 {
550 coff_symbol_type * sym;
551 combined_entry_type * ent;
552 SYMENT * esym;
553 unsigned short sclass;
554
555 if (extra_flags & BSF_LOCAL)
556 sclass = C_STAT;
557 else
558 sclass = C_EXT;
559
560 #ifdef THUMBPEMAGIC
561 if (vars->magic == THUMBPEMAGIC)
562 {
563 if (extra_flags & BSF_FUNCTION)
564 sclass = C_THUMBEXTFUNC;
565 else if (extra_flags & BSF_LOCAL)
566 sclass = C_THUMBSTAT;
567 else
568 sclass = C_THUMBEXT;
569 }
570 #endif
571
572 BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS);
573
574 sym = vars->sym_ptr;
575 ent = vars->native_ptr;
576 esym = vars->esym_ptr;
577
578 /* Copy the symbol's name into the string table. */
579 int len = sprintf (vars->string_ptr, "%s%s", prefix, symbol_name);
580
581 if (section == NULL)
582 section = bfd_und_section_ptr;
583
584 /* Initialise the external symbol. */
585 H_PUT_32 (vars->abfd, vars->string_ptr - vars->string_table,
586 esym->e.e.e_offset);
587 H_PUT_16 (vars->abfd, section->target_index, esym->e_scnum);
588 esym->e_sclass[0] = sclass;
589
590 /* The following initialisations are unnecessary - the memory is
591 zero initialised. They are just kept here as reminders. */
592
593 /* Initialise the internal symbol structure. */
594 ent->u.syment.n_sclass = sclass;
595 ent->u.syment.n_scnum = section->target_index;
596 ent->u.syment._n._n_n._n_offset = (uintptr_t) sym;
597 ent->is_sym = true;
598
599 sym->symbol.the_bfd = vars->abfd;
600 sym->symbol.name = vars->string_ptr;
601 sym->symbol.flags = BSF_EXPORT | BSF_GLOBAL | extra_flags;
602 sym->symbol.section = section;
603 sym->native = ent;
604
605 * vars->table_ptr = vars->sym_index;
606 * vars->sym_ptr_ptr = sym;
607
608 /* Adjust pointers for the next symbol. */
609 vars->sym_index ++;
610 vars->sym_ptr ++;
611 vars->sym_ptr_ptr ++;
612 vars->table_ptr ++;
613 vars->native_ptr ++;
614 vars->esym_ptr ++;
615 vars->string_ptr += len + 1;
616
617 BFD_ASSERT (vars->string_ptr < vars->end_string_ptr);
618 }
619
620 /* Create a section. */
621
622 static asection_ptr
623 pe_ILF_make_a_section (pe_ILF_vars * vars,
624 const char * name,
625 unsigned int size,
626 flagword extra_flags)
627 {
628 asection_ptr sec;
629 flagword flags;
630 intptr_t alignment;
631
632 sec = bfd_make_section_old_way (vars->abfd, name);
633 if (sec == NULL)
634 return NULL;
635
636 flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY;
637
638 bfd_set_section_flags (sec, flags | extra_flags);
639
640 bfd_set_section_alignment (sec, 2);
641
642 /* Check that we will not run out of space. */
643 BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size);
644
645 /* Set the section size and contents. The actual
646 contents are filled in by our parent. */
647 bfd_set_section_size (sec, (bfd_size_type) size);
648 sec->contents = vars->data;
649 sec->target_index = vars->sec_index ++;
650
651 /* Advance data pointer in the vars structure. */
652 vars->data += size;
653
654 /* Skip the padding byte if it was not needed.
655 The logic here is that if the string length is odd,
656 then the entire string length, including the null byte,
657 is even and so the extra, padding byte, is not needed. */
658 if (size & 1)
659 vars->data --;
660
661 /* PR 18758: See note in pe_ILF_buid_a_bfd. We must make sure that we
662 preserve host alignment requirements. The BFD_ASSERTs in this
663 functions will warn us if we run out of room, but we should
664 already have enough padding built in to ILF_DATA_SIZE. */
665 #if GCC_VERSION >= 3000
666 alignment = __alignof__ (struct coff_section_tdata);
667 #else
668 alignment = 8;
669 #endif
670 vars->data
671 = (bfd_byte *) (((intptr_t) vars->data + alignment - 1) & -alignment);
672
673 /* Create a coff_section_tdata structure for our use. */
674 sec->used_by_bfd = (struct coff_section_tdata *) vars->data;
675 vars->data += sizeof (struct coff_section_tdata);
676
677 BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size);
678
679 /* Create a symbol to refer to this section. */
680 pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL);
681
682 /* Cache the index to the symbol in the coff_section_data structure. */
683 coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1;
684
685 return sec;
686 }
687
688 /* This structure contains the code that goes into the .text section
689 in order to perform a jump into the DLL lookup table. The entries
690 in the table are index by the magic number used to represent the
691 machine type in the PE file. The contents of the data[] arrays in
692 these entries are stolen from the jtab[] arrays in ld/pe-dll.c.
693 The SIZE field says how many bytes in the DATA array are actually
694 used. The OFFSET field says where in the data array the address
695 of the .idata$5 section should be placed. */
696 #define MAX_TEXT_SECTION_SIZE 32
697
698 typedef struct
699 {
700 unsigned short magic;
701 unsigned char data[MAX_TEXT_SECTION_SIZE];
702 unsigned int size;
703 unsigned int offset;
704 }
705 jump_table;
706
707 static const jump_table jtab[] =
708 {
709 #ifdef I386MAGIC
710 { I386MAGIC,
711 { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 },
712 8, 2
713 },
714 #endif
715
716 #ifdef AMD64MAGIC
717 { AMD64MAGIC,
718 { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 },
719 8, 2
720 },
721 #endif
722
723 #ifdef MC68MAGIC
724 { MC68MAGIC,
725 { /* XXX fill me in */ },
726 0, 0
727 },
728 #endif
729
730 #ifdef MIPS_ARCH_MAGIC_WINCE
731 { MIPS_ARCH_MAGIC_WINCE,
732 { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d,
733 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 },
734 16, 0
735 },
736 #endif
737
738 #ifdef SH_ARCH_MAGIC_WINCE
739 { SH_ARCH_MAGIC_WINCE,
740 { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40,
741 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 },
742 12, 8
743 },
744 #endif
745
746 #ifdef AARCH64MAGIC
747 /* We don't currently support jumping to DLLs, so if
748 someone does try emit a runtime trap. Through UDF #0. */
749 { AARCH64MAGIC,
750 { 0x00, 0x00, 0x00, 0x00 },
751 4, 0
752 },
753
754 #endif
755
756 #ifdef ARMPEMAGIC
757 { ARMPEMAGIC,
758 { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0,
759 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00},
760 12, 8
761 },
762 #endif
763
764 #ifdef THUMBPEMAGIC
765 { THUMBPEMAGIC,
766 { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46,
767 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 },
768 16, 12
769 },
770 #endif
771
772 #ifdef LOONGARCH64MAGIC
773 /* We don't currently support jumping to DLLs, so if
774 someone does try emit a runtime trap. Through BREAK 0. */
775 { LOONGARCH64MAGIC,
776 { 0x00, 0x00, 0x2a, 0x00 },
777 4, 0
778 },
779
780 #endif
781
782 { 0, { 0 }, 0, 0 }
783 };
784
785 #ifndef NUM_ENTRIES
786 #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0])
787 #endif
788
789 /* Build a full BFD from the information supplied in a ILF object. */
790
791 static bool
792 pe_ILF_build_a_bfd (bfd * abfd,
793 unsigned int magic,
794 char * symbol_name,
795 char * source_dll,
796 unsigned int ordinal,
797 unsigned int types)
798 {
799 bfd_byte * ptr;
800 pe_ILF_vars vars;
801 struct internal_filehdr internal_f;
802 unsigned int import_type;
803 unsigned int import_name_type;
804 asection_ptr id4, id5, id6 = NULL, text = NULL;
805 coff_symbol_type ** imp_sym;
806 unsigned int imp_index;
807 intptr_t alignment;
808
809 /* Decode and verify the types field of the ILF structure. */
810 import_type = types & 0x3;
811 import_name_type = (types & 0x1c) >> 2;
812
813 switch (import_type)
814 {
815 case IMPORT_CODE:
816 case IMPORT_DATA:
817 break;
818
819 case IMPORT_CONST:
820 /* XXX code yet to be written. */
821 /* xgettext:c-format */
822 _bfd_error_handler (_("%pB: unhandled import type; %x"),
823 abfd, import_type);
824 return false;
825
826 default:
827 /* xgettext:c-format */
828 _bfd_error_handler (_("%pB: unrecognized import type; %x"),
829 abfd, import_type);
830 return false;
831 }
832
833 switch (import_name_type)
834 {
835 case IMPORT_ORDINAL:
836 case IMPORT_NAME:
837 case IMPORT_NAME_NOPREFIX:
838 case IMPORT_NAME_UNDECORATE:
839 break;
840
841 default:
842 /* xgettext:c-format */
843 _bfd_error_handler (_("%pB: unrecognized import name type; %x"),
844 abfd, import_name_type);
845 return false;
846 }
847
848 /* Initialise local variables.
849
850 Note these are kept in a structure rather than being
851 declared as statics since bfd frowns on global variables.
852
853 We are going to construct the contents of the BFD in memory,
854 so allocate all the space that we will need right now. */
855 vars.bim
856 = (struct bfd_in_memory *) bfd_malloc ((bfd_size_type) sizeof (*vars.bim));
857 if (vars.bim == NULL)
858 return false;
859
860 ptr = (bfd_byte *) bfd_zmalloc ((bfd_size_type) ILF_DATA_SIZE);
861 vars.bim->buffer = ptr;
862 vars.bim->size = ILF_DATA_SIZE;
863 if (ptr == NULL)
864 goto error_return;
865
866 /* Initialise the pointers to regions of the memory and the
867 other contents of the pe_ILF_vars structure as well. */
868 vars.sym_cache = (coff_symbol_type *) ptr;
869 vars.sym_ptr = (coff_symbol_type *) ptr;
870 vars.sym_index = 0;
871 ptr += SIZEOF_ILF_SYMS;
872
873 vars.sym_table = (unsigned int *) ptr;
874 vars.table_ptr = (unsigned int *) ptr;
875 ptr += SIZEOF_ILF_SYM_TABLE;
876
877 vars.native_syms = (combined_entry_type *) ptr;
878 vars.native_ptr = (combined_entry_type *) ptr;
879 ptr += SIZEOF_ILF_NATIVE_SYMS;
880
881 vars.sym_ptr_table = (coff_symbol_type **) ptr;
882 vars.sym_ptr_ptr = (coff_symbol_type **) ptr;
883 ptr += SIZEOF_ILF_SYM_PTR_TABLE;
884
885 vars.esym_table = (SYMENT *) ptr;
886 vars.esym_ptr = (SYMENT *) ptr;
887 ptr += SIZEOF_ILF_EXT_SYMS;
888
889 vars.reltab = (arelent *) ptr;
890 vars.relcount = 0;
891 ptr += SIZEOF_ILF_RELOCS;
892
893 vars.int_reltab = (struct internal_reloc *) ptr;
894 ptr += SIZEOF_ILF_INT_RELOCS;
895
896 vars.string_table = (char *) ptr;
897 vars.string_ptr = (char *) ptr + STRING_SIZE_SIZE;
898 ptr += SIZEOF_ILF_STRINGS;
899 vars.end_string_ptr = (char *) ptr;
900
901 /* The remaining space in bim->buffer is used
902 by the pe_ILF_make_a_section() function. */
903
904 /* PR 18758: Make sure that the data area is sufficiently aligned for
905 struct coff_section_tdata. __alignof__ is a gcc extension, hence
906 the test of GCC_VERSION. For other compilers we assume 8 byte
907 alignment. */
908 #if GCC_VERSION >= 3000
909 alignment = __alignof__ (struct coff_section_tdata);
910 #else
911 alignment = 8;
912 #endif
913 ptr = (bfd_byte *) (((intptr_t) ptr + alignment - 1) & -alignment);
914
915 vars.data = ptr;
916 vars.abfd = abfd;
917 vars.sec_index = 0;
918 vars.magic = magic;
919
920 /* Create the initial .idata$<n> sections:
921 [.idata$2: Import Directory Table -- not needed]
922 .idata$4: Import Lookup Table
923 .idata$5: Import Address Table
924
925 Note we do not create a .idata$3 section as this is
926 created for us by the linker script. */
927 id4 = pe_ILF_make_a_section (& vars, ".idata$4", SIZEOF_IDATA4, 0);
928 id5 = pe_ILF_make_a_section (& vars, ".idata$5", SIZEOF_IDATA5, 0);
929 if (id4 == NULL || id5 == NULL)
930 goto error_return;
931
932 /* Fill in the contents of these sections. */
933 if (import_name_type == IMPORT_ORDINAL)
934 {
935 if (ordinal == 0)
936 /* See PR 20907 for a reproducer. */
937 goto error_return;
938
939 #if defined(COFF_WITH_pex64) || defined(COFF_WITH_peAArch64) || defined(COFF_WITH_peLoongArch64)
940 ((unsigned int *) id4->contents)[0] = ordinal;
941 ((unsigned int *) id4->contents)[1] = 0x80000000;
942 ((unsigned int *) id5->contents)[0] = ordinal;
943 ((unsigned int *) id5->contents)[1] = 0x80000000;
944 #else
945 * (unsigned int *) id4->contents = ordinal | 0x80000000;
946 * (unsigned int *) id5->contents = ordinal | 0x80000000;
947 #endif
948 }
949 else
950 {
951 char * symbol;
952 unsigned int len;
953
954 /* Create .idata$6 - the Hint Name Table. */
955 id6 = pe_ILF_make_a_section (& vars, ".idata$6", SIZEOF_IDATA6, 0);
956 if (id6 == NULL)
957 goto error_return;
958
959 /* If necessary, trim the import symbol name. */
960 symbol = symbol_name;
961
962 /* As used by MS compiler, '_', '@', and '?' are alternative
963 forms of USER_LABEL_PREFIX, with '?' for c++ mangled names,
964 '@' used for fastcall (in C), '_' everywhere else. Only one
965 of these is used for a symbol. We strip this leading char for
966 IMPORT_NAME_NOPREFIX and IMPORT_NAME_UNDECORATE as per the
967 PE COFF 6.0 spec (section 8.3, Import Name Type). */
968
969 if (import_name_type != IMPORT_NAME)
970 {
971 char c = symbol[0];
972
973 /* Check that we don't remove for targets with empty
974 USER_LABEL_PREFIX the leading underscore. */
975 if ((c == '_' && abfd->xvec->symbol_leading_char != 0)
976 || c == '@' || c == '?')
977 symbol++;
978 }
979
980 len = strlen (symbol);
981 if (import_name_type == IMPORT_NAME_UNDECORATE)
982 {
983 /* Truncate at the first '@'. */
984 char *at = strchr (symbol, '@');
985
986 if (at != NULL)
987 len = at - symbol;
988 }
989
990 id6->contents[0] = ordinal & 0xff;
991 id6->contents[1] = ordinal >> 8;
992
993 memcpy ((char *) id6->contents + 2, symbol, len);
994 id6->contents[len + 2] = '\0';
995 }
996
997 if (import_name_type != IMPORT_ORDINAL)
998 {
999 pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6);
1000 pe_ILF_save_relocs (&vars, id4);
1001
1002 pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6);
1003 pe_ILF_save_relocs (&vars, id5);
1004 }
1005
1006 /* Create an import symbol. */
1007 pe_ILF_make_a_symbol (& vars, "__imp_", symbol_name, id5, 0);
1008 imp_sym = vars.sym_ptr_ptr - 1;
1009 imp_index = vars.sym_index - 1;
1010
1011 /* Create extra sections depending upon the type of import we are dealing with. */
1012 switch (import_type)
1013 {
1014 int i;
1015
1016 case IMPORT_CODE:
1017 /* CODE functions are special, in that they get a trampoline that
1018 jumps to the main import symbol. Create a .text section to hold it.
1019 First we need to look up its contents in the jump table. */
1020 for (i = NUM_ENTRIES (jtab); i--;)
1021 {
1022 if (jtab[i].size == 0)
1023 continue;
1024 if (jtab[i].magic == magic)
1025 break;
1026 }
1027 /* If we did not find a matching entry something is wrong. */
1028 if (i < 0)
1029 abort ();
1030
1031 /* Create the .text section. */
1032 text = pe_ILF_make_a_section (& vars, ".text", jtab[i].size, SEC_CODE);
1033 if (text == NULL)
1034 goto error_return;
1035
1036 /* Copy in the jump code. */
1037 memcpy (text->contents, jtab[i].data, jtab[i].size);
1038
1039 /* Create a reloc for the data in the text section. */
1040 #ifdef MIPS_ARCH_MAGIC_WINCE
1041 if (magic == MIPS_ARCH_MAGIC_WINCE)
1042 {
1043 pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 0, BFD_RELOC_HI16_S,
1044 (struct bfd_symbol **) imp_sym,
1045 imp_index);
1046 pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_LO16, text);
1047 pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 4, BFD_RELOC_LO16,
1048 (struct bfd_symbol **) imp_sym,
1049 imp_index);
1050 }
1051 else
1052 #endif
1053 #ifdef AMD64MAGIC
1054 if (magic == AMD64MAGIC)
1055 {
1056 pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) jtab[i].offset,
1057 BFD_RELOC_32_PCREL, (asymbol **) imp_sym,
1058 imp_index);
1059 }
1060 else
1061 #endif
1062 pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) jtab[i].offset,
1063 BFD_RELOC_32, (asymbol **) imp_sym,
1064 imp_index);
1065
1066 pe_ILF_save_relocs (& vars, text);
1067 break;
1068
1069 case IMPORT_DATA:
1070 break;
1071
1072 default:
1073 /* XXX code not yet written. */
1074 abort ();
1075 }
1076
1077 /* Now create a symbol describing the imported value. */
1078 switch (import_type)
1079 {
1080 case IMPORT_CODE:
1081 pe_ILF_make_a_symbol (& vars, "", symbol_name, text,
1082 BSF_NOT_AT_END | BSF_FUNCTION);
1083
1084 break;
1085
1086 case IMPORT_DATA:
1087 /* Nothing to do here. */
1088 break;
1089
1090 default:
1091 /* XXX code not yet written. */
1092 abort ();
1093 }
1094
1095 /* Create an import symbol for the DLL, without the .dll suffix. */
1096 ptr = (bfd_byte *) strrchr (source_dll, '.');
1097 if (ptr)
1098 * ptr = 0;
1099 pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0);
1100 if (ptr)
1101 * ptr = '.';
1102
1103 /* Initialise the bfd. */
1104 memset (& internal_f, 0, sizeof (internal_f));
1105
1106 internal_f.f_magic = magic;
1107 internal_f.f_symptr = 0;
1108 internal_f.f_nsyms = 0;
1109 internal_f.f_flags = F_AR32WR | F_LNNO; /* XXX is this correct ? */
1110
1111 if ( ! bfd_set_start_address (abfd, (bfd_vma) 0)
1112 || ! bfd_coff_set_arch_mach_hook (abfd, & internal_f))
1113 goto error_return;
1114
1115 if (bfd_coff_mkobject_hook (abfd, (void *) & internal_f, NULL) == NULL)
1116 goto error_return;
1117
1118 obj_pe (abfd) = true;
1119 #ifdef THUMBPEMAGIC
1120 if (vars.magic == THUMBPEMAGIC)
1121 /* Stop some linker warnings about thumb code not supporting interworking. */
1122 coff_data (abfd)->flags |= F_INTERWORK | F_INTERWORK_SET;
1123 #endif
1124
1125 /* Switch from file contents to memory contents. */
1126 bfd_cache_close (abfd);
1127
1128 abfd->iostream = (void *) vars.bim;
1129 abfd->flags |= BFD_IN_MEMORY | HAS_SYMS;
1130 abfd->iovec = &_bfd_memory_iovec;
1131 abfd->where = 0;
1132 abfd->origin = 0;
1133 abfd->size = 0;
1134 obj_sym_filepos (abfd) = 0;
1135
1136 /* Point the bfd at the symbol table. */
1137 obj_symbols (abfd) = vars.sym_cache;
1138 abfd->symcount = vars.sym_index;
1139
1140 obj_raw_syments (abfd) = vars.native_syms;
1141 obj_raw_syment_count (abfd) = vars.sym_index;
1142
1143 obj_coff_external_syms (abfd) = (void *) vars.esym_table;
1144 obj_coff_keep_syms (abfd) = true;
1145
1146 obj_convert (abfd) = vars.sym_table;
1147 obj_conv_table_size (abfd) = vars.sym_index;
1148
1149 obj_coff_strings (abfd) = vars.string_table;
1150 obj_coff_strings_len (abfd) = vars.string_ptr - vars.string_table;
1151 obj_coff_keep_strings (abfd) = true;
1152
1153 return true;
1154
1155 error_return:
1156 free (vars.bim->buffer);
1157 free (vars.bim);
1158 return false;
1159 }
1160
1161 /* Cleanup function, returned from check_format hook. */
1162
1163 static void
1164 pe_ILF_cleanup (bfd *abfd)
1165 {
1166 struct bfd_in_memory *bim = abfd->iostream;
1167 free (bim->buffer);
1168 free (bim);
1169 abfd->iostream = NULL;
1170 }
1171
1172 /* We have detected an Import Library Format archive element.
1173 Decode the element and return the appropriate target. */
1174
1175 static bfd_cleanup
1176 pe_ILF_object_p (bfd * abfd)
1177 {
1178 bfd_byte buffer[14];
1179 bfd_byte * ptr;
1180 char * symbol_name;
1181 char * source_dll;
1182 unsigned int machine;
1183 bfd_size_type size;
1184 unsigned int ordinal;
1185 unsigned int types;
1186 unsigned int magic;
1187
1188 /* Upon entry the first six bytes of the ILF header have
1189 already been read. Now read the rest of the header. */
1190 if (bfd_bread (buffer, (bfd_size_type) 14, abfd) != 14)
1191 return NULL;
1192
1193 ptr = buffer;
1194
1195 machine = H_GET_16 (abfd, ptr);
1196 ptr += 2;
1197
1198 /* Check that the machine type is recognised. */
1199 magic = 0;
1200
1201 switch (machine)
1202 {
1203 case IMAGE_FILE_MACHINE_UNKNOWN:
1204 case IMAGE_FILE_MACHINE_ALPHA:
1205 case IMAGE_FILE_MACHINE_ALPHA64:
1206 case IMAGE_FILE_MACHINE_IA64:
1207 break;
1208
1209 case IMAGE_FILE_MACHINE_I386:
1210 #ifdef I386MAGIC
1211 magic = I386MAGIC;
1212 #endif
1213 break;
1214
1215 case IMAGE_FILE_MACHINE_AMD64:
1216 #ifdef AMD64MAGIC
1217 magic = AMD64MAGIC;
1218 #endif
1219 break;
1220
1221 case IMAGE_FILE_MACHINE_R3000:
1222 case IMAGE_FILE_MACHINE_R4000:
1223 case IMAGE_FILE_MACHINE_R10000:
1224
1225 case IMAGE_FILE_MACHINE_MIPS16:
1226 case IMAGE_FILE_MACHINE_MIPSFPU:
1227 case IMAGE_FILE_MACHINE_MIPSFPU16:
1228 #ifdef MIPS_ARCH_MAGIC_WINCE
1229 magic = MIPS_ARCH_MAGIC_WINCE;
1230 #endif
1231 break;
1232
1233 case IMAGE_FILE_MACHINE_SH3:
1234 case IMAGE_FILE_MACHINE_SH4:
1235 #ifdef SH_ARCH_MAGIC_WINCE
1236 magic = SH_ARCH_MAGIC_WINCE;
1237 #endif
1238 break;
1239
1240 case IMAGE_FILE_MACHINE_ARM:
1241 #ifdef ARMPEMAGIC
1242 magic = ARMPEMAGIC;
1243 #endif
1244 break;
1245
1246 case IMAGE_FILE_MACHINE_ARM64:
1247 #ifdef AARCH64MAGIC
1248 magic = AARCH64MAGIC;
1249 #endif
1250 break;
1251
1252 case IMAGE_FILE_MACHINE_LOONGARCH64:
1253 #ifdef LOONGARCH64MAGIC
1254 magic = LOONGARCH64MAGIC;
1255 #endif
1256 break;
1257
1258 case IMAGE_FILE_MACHINE_THUMB:
1259 #ifdef THUMBPEMAGIC
1260 {
1261 extern const bfd_target TARGET_LITTLE_SYM;
1262
1263 if (abfd->xvec == & TARGET_LITTLE_SYM)
1264 magic = THUMBPEMAGIC;
1265 }
1266 #endif
1267 break;
1268
1269 case IMAGE_FILE_MACHINE_POWERPC:
1270 /* We no longer support PowerPC. */
1271 default:
1272 _bfd_error_handler
1273 /* xgettext:c-format */
1274 (_("%pB: unrecognised machine type (0x%x)"
1275 " in Import Library Format archive"),
1276 abfd, machine);
1277 bfd_set_error (bfd_error_malformed_archive);
1278
1279 return NULL;
1280 break;
1281 }
1282
1283 if (magic == 0)
1284 {
1285 _bfd_error_handler
1286 /* xgettext:c-format */
1287 (_("%pB: recognised but unhandled machine type (0x%x)"
1288 " in Import Library Format archive"),
1289 abfd, machine);
1290 bfd_set_error (bfd_error_wrong_format);
1291
1292 return NULL;
1293 }
1294
1295 /* We do not bother to check the date.
1296 date = H_GET_32 (abfd, ptr); */
1297 ptr += 4;
1298
1299 size = H_GET_32 (abfd, ptr);
1300 ptr += 4;
1301
1302 if (size == 0)
1303 {
1304 _bfd_error_handler
1305 (_("%pB: size field is zero in Import Library Format header"), abfd);
1306 bfd_set_error (bfd_error_malformed_archive);
1307
1308 return NULL;
1309 }
1310
1311 ordinal = H_GET_16 (abfd, ptr);
1312 ptr += 2;
1313
1314 types = H_GET_16 (abfd, ptr);
1315 /* ptr += 2; */
1316
1317 /* Now read in the two strings that follow. */
1318 ptr = (bfd_byte *) _bfd_alloc_and_read (abfd, size, size);
1319 if (ptr == NULL)
1320 return NULL;
1321
1322 symbol_name = (char *) ptr;
1323 /* See PR 20905 for an example of where the strnlen is necessary. */
1324 source_dll = symbol_name + strnlen (symbol_name, size - 1) + 1;
1325
1326 /* Verify that the strings are null terminated. */
1327 if (ptr[size - 1] != 0
1328 || (bfd_size_type) ((bfd_byte *) source_dll - ptr) >= size)
1329 {
1330 _bfd_error_handler
1331 (_("%pB: string not null terminated in ILF object file"), abfd);
1332 bfd_set_error (bfd_error_malformed_archive);
1333 bfd_release (abfd, ptr);
1334 return NULL;
1335 }
1336
1337 /* Now construct the bfd. */
1338 if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name,
1339 source_dll, ordinal, types))
1340 {
1341 bfd_release (abfd, ptr);
1342 return NULL;
1343 }
1344
1345 return pe_ILF_cleanup;
1346 }
1347
1348 static void
1349 pe_bfd_read_buildid (bfd *abfd)
1350 {
1351 pe_data_type *pe = pe_data (abfd);
1352 struct internal_extra_pe_aouthdr *extra = &pe->pe_opthdr;
1353 asection *section;
1354 bfd_byte *data = 0;
1355 bfd_size_type dataoff;
1356 unsigned int i;
1357 bfd_vma addr = extra->DataDirectory[PE_DEBUG_DATA].VirtualAddress;
1358 bfd_size_type size = extra->DataDirectory[PE_DEBUG_DATA].Size;
1359
1360 if (size == 0)
1361 return;
1362
1363 addr += extra->ImageBase;
1364
1365 /* Search for the section containing the DebugDirectory. */
1366 for (section = abfd->sections; section != NULL; section = section->next)
1367 {
1368 if ((addr >= section->vma) && (addr < (section->vma + section->size)))
1369 break;
1370 }
1371
1372 if (section == NULL)
1373 return;
1374
1375 if (!(section->flags & SEC_HAS_CONTENTS))
1376 return;
1377
1378 dataoff = addr - section->vma;
1379
1380 /* PR 20605 and 22373: Make sure that the data is really there.
1381 Note - since we are dealing with unsigned quantities we have
1382 to be careful to check for potential overflows. */
1383 if (dataoff >= section->size
1384 || size > section->size - dataoff)
1385 {
1386 _bfd_error_handler
1387 (_("%pB: error: debug data ends beyond end of debug directory"),
1388 abfd);
1389 return;
1390 }
1391
1392 /* Read the whole section. */
1393 if (!bfd_malloc_and_get_section (abfd, section, &data))
1394 {
1395 free (data);
1396 return;
1397 }
1398
1399 /* Search for a CodeView entry in the DebugDirectory */
1400 for (i = 0; i < size / sizeof (struct external_IMAGE_DEBUG_DIRECTORY); i++)
1401 {
1402 struct external_IMAGE_DEBUG_DIRECTORY *ext
1403 = &((struct external_IMAGE_DEBUG_DIRECTORY *)(data + dataoff))[i];
1404 struct internal_IMAGE_DEBUG_DIRECTORY idd;
1405
1406 _bfd_XXi_swap_debugdir_in (abfd, ext, &idd);
1407
1408 if (idd.Type == PE_IMAGE_DEBUG_TYPE_CODEVIEW)
1409 {
1410 char buffer[256 + 1];
1411 CODEVIEW_INFO *cvinfo = (CODEVIEW_INFO *) buffer;
1412
1413 /*
1414 The debug entry doesn't have to have to be in a section, in which
1415 case AddressOfRawData is 0, so always use PointerToRawData.
1416 */
1417 if (_bfd_XXi_slurp_codeview_record (abfd,
1418 (file_ptr) idd.PointerToRawData,
1419 idd.SizeOfData, cvinfo, NULL))
1420 {
1421 struct bfd_build_id* build_id = bfd_alloc (abfd,
1422 sizeof (struct bfd_build_id) + cvinfo->SignatureLength);
1423 if (build_id)
1424 {
1425 build_id->size = cvinfo->SignatureLength;
1426 memcpy(build_id->data, cvinfo->Signature,
1427 cvinfo->SignatureLength);
1428 abfd->build_id = build_id;
1429 }
1430 }
1431 break;
1432 }
1433 }
1434
1435 free (data);
1436 }
1437
1438 static bfd_cleanup
1439 pe_bfd_object_p (bfd * abfd)
1440 {
1441 bfd_byte buffer[6];
1442 struct external_DOS_hdr dos_hdr;
1443 struct external_PEI_IMAGE_hdr image_hdr;
1444 struct internal_filehdr internal_f;
1445 struct internal_aouthdr internal_a;
1446 bfd_size_type opt_hdr_size;
1447 file_ptr offset;
1448 bfd_cleanup result;
1449
1450 /* Detect if this a Microsoft Import Library Format element. */
1451 /* First read the beginning of the header. */
1452 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
1453 || bfd_bread (buffer, (bfd_size_type) 6, abfd) != 6)
1454 {
1455 if (bfd_get_error () != bfd_error_system_call)
1456 bfd_set_error (bfd_error_wrong_format);
1457 return NULL;
1458 }
1459
1460 /* Then check the magic and the version (only 0 is supported). */
1461 if (H_GET_32 (abfd, buffer) == 0xffff0000
1462 && H_GET_16 (abfd, buffer + 4) == 0)
1463 return pe_ILF_object_p (abfd);
1464
1465 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
1466 || bfd_bread (&dos_hdr, (bfd_size_type) sizeof (dos_hdr), abfd)
1467 != sizeof (dos_hdr))
1468 {
1469 if (bfd_get_error () != bfd_error_system_call)
1470 bfd_set_error (bfd_error_wrong_format);
1471 return NULL;
1472 }
1473
1474 /* There are really two magic numbers involved; the magic number
1475 that says this is a NT executable (PEI) and the magic number that
1476 determines the architecture. The former is IMAGE_DOS_SIGNATURE, stored in
1477 the e_magic field. The latter is stored in the f_magic field.
1478 If the NT magic number isn't valid, the architecture magic number
1479 could be mimicked by some other field (specifically, the number
1480 of relocs in section 3). Since this routine can only be called
1481 correctly for a PEI file, check the e_magic number here, and, if
1482 it doesn't match, clobber the f_magic number so that we don't get
1483 a false match. */
1484 if (H_GET_16 (abfd, dos_hdr.e_magic) != IMAGE_DOS_SIGNATURE)
1485 {
1486 bfd_set_error (bfd_error_wrong_format);
1487 return NULL;
1488 }
1489
1490 offset = H_GET_32 (abfd, dos_hdr.e_lfanew);
1491 if (bfd_seek (abfd, offset, SEEK_SET) != 0
1492 || (bfd_bread (&image_hdr, (bfd_size_type) sizeof (image_hdr), abfd)
1493 != sizeof (image_hdr)))
1494 {
1495 if (bfd_get_error () != bfd_error_system_call)
1496 bfd_set_error (bfd_error_wrong_format);
1497 return NULL;
1498 }
1499
1500 if (H_GET_32 (abfd, image_hdr.nt_signature) != 0x4550)
1501 {
1502 bfd_set_error (bfd_error_wrong_format);
1503 return NULL;
1504 }
1505
1506 /* Swap file header, so that we get the location for calling
1507 real_object_p. */
1508 bfd_coff_swap_filehdr_in (abfd, &image_hdr, &internal_f);
1509
1510 if (! bfd_coff_bad_format_hook (abfd, &internal_f)
1511 || internal_f.f_opthdr > bfd_coff_aoutsz (abfd))
1512 {
1513 bfd_set_error (bfd_error_wrong_format);
1514 return NULL;
1515 }
1516
1517 memcpy (internal_f.pe.dos_message, dos_hdr.dos_message,
1518 sizeof (internal_f.pe.dos_message));
1519
1520 /* Read the optional header, which has variable size. */
1521 opt_hdr_size = internal_f.f_opthdr;
1522
1523 if (opt_hdr_size != 0)
1524 {
1525 bfd_size_type amt = opt_hdr_size;
1526 bfd_byte * opthdr;
1527
1528 /* PR 17521 file: 230-131433-0.004. */
1529 if (amt < sizeof (PEAOUTHDR))
1530 amt = sizeof (PEAOUTHDR);
1531
1532 opthdr = _bfd_alloc_and_read (abfd, amt, opt_hdr_size);
1533 if (opthdr == NULL)
1534 return NULL;
1535 if (amt > opt_hdr_size)
1536 memset (opthdr + opt_hdr_size, 0, amt - opt_hdr_size);
1537
1538 bfd_coff_swap_aouthdr_in (abfd, opthdr, &internal_a);
1539
1540 struct internal_extra_pe_aouthdr *a = &internal_a.pe;
1541
1542 #ifdef ARM
1543 /* Use Subsystem to distinguish between pei-arm-little and
1544 pei-arm-wince-little. */
1545 #ifdef WINCE
1546 if (a->Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CE_GUI)
1547 #else
1548 if (a->Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CE_GUI)
1549 #endif
1550 {
1551 bfd_set_error (bfd_error_wrong_format);
1552 return NULL;
1553 }
1554 #endif
1555
1556 if ((a->SectionAlignment & -a->SectionAlignment) != a->SectionAlignment
1557 || a->SectionAlignment >= 0x80000000)
1558 {
1559 _bfd_error_handler (_("%pB: adjusting invalid SectionAlignment"),
1560 abfd);
1561 a->SectionAlignment &= -a->SectionAlignment;
1562 if (a->SectionAlignment >= 0x80000000)
1563 a->SectionAlignment = 0x40000000;
1564 }
1565
1566 if ((a->FileAlignment & -a->FileAlignment) != a->FileAlignment
1567 || a->FileAlignment > a->SectionAlignment)
1568 {
1569 _bfd_error_handler (_("%pB: adjusting invalid FileAlignment"),
1570 abfd);
1571 a->FileAlignment &= -a->FileAlignment;
1572 if (a->FileAlignment > a->SectionAlignment)
1573 a->FileAlignment = a->SectionAlignment;
1574 }
1575
1576 if (a->NumberOfRvaAndSizes > IMAGE_NUMBEROF_DIRECTORY_ENTRIES)
1577 _bfd_error_handler (_("%pB: invalid NumberOfRvaAndSizes"), abfd);
1578 }
1579
1580 result = coff_real_object_p (abfd, internal_f.f_nscns, &internal_f,
1581 (opt_hdr_size != 0
1582 ? &internal_a
1583 : (struct internal_aouthdr *) NULL));
1584
1585 if (result)
1586 {
1587 /* Now the whole header has been processed, see if there is a build-id */
1588 pe_bfd_read_buildid(abfd);
1589 }
1590
1591 return result;
1592 }
1593
1594 #define coff_object_p pe_bfd_object_p
1595 #endif /* COFF_IMAGE_WITH_PE */