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.
5 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
23 /* Most of this hacked by Steve Chamberlain,
26 PE/PEI rearrangement (and code added): Donn Terry
27 Softway Systems, Inc. */
29 /* Hey look, some documentation [and in a place you expect to find it]!
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.
36 "Peering Inside the PE: A Tour of the Win32 Portable Executable
37 File Format", MSJ 1994, Volume 9.
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
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.
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. */
59 static bool (*pe_saved_coff_bfd_print_private_bfd_data
) (bfd
*, void *) =
60 #ifndef coff_bfd_print_private_bfd_data
63 coff_bfd_print_private_bfd_data
;
64 #undef coff_bfd_print_private_bfd_data
67 static bool pe_print_private_bfd_data (bfd
*, void *);
68 #define coff_bfd_print_private_bfd_data pe_print_private_bfd_data
70 static bool (*pe_saved_coff_bfd_copy_private_bfd_data
) (bfd
*, bfd
*) =
71 #ifndef coff_bfd_copy_private_bfd_data
74 coff_bfd_copy_private_bfd_data
;
75 #undef coff_bfd_copy_private_bfd_data
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
81 #define coff_mkobject pe_mkobject
82 #define coff_mkobject_hook pe_mkobject_hook
84 #ifdef COFF_IMAGE_WITH_PE
85 /* This structure contains static variables used by the ILF code. */
86 typedef asection
* asection_ptr
;
92 struct bfd_in_memory
* bim
;
96 unsigned int relcount
;
98 coff_symbol_type
* sym_cache
;
99 coff_symbol_type
* sym_ptr
;
100 unsigned int sym_index
;
102 unsigned int * sym_table
;
103 unsigned int * table_ptr
;
105 combined_entry_type
* native_syms
;
106 combined_entry_type
* native_ptr
;
108 coff_symbol_type
** sym_ptr_table
;
109 coff_symbol_type
** sym_ptr_ptr
;
111 unsigned int sec_index
;
115 char * end_string_ptr
;
120 struct internal_reloc
* int_reltab
;
123 #endif /* COFF_IMAGE_WITH_PE */
125 bfd_cleanup coff_real_object_p
126 (bfd
*, unsigned, struct internal_filehdr
*, struct internal_aouthdr
*);
128 #ifndef NO_COFF_RELOCS
130 coff_swap_reloc_in (bfd
* abfd
, void * src
, void * dst
)
132 RELOC
*reloc_src
= (RELOC
*) src
;
133 struct internal_reloc
*reloc_dst
= (struct internal_reloc
*) dst
;
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
);
144 coff_swap_reloc_out (bfd
* abfd
, void * src
, void * dst
)
146 struct internal_reloc
*reloc_src
= (struct internal_reloc
*) src
;
147 struct external_reloc
*reloc_dst
= (struct external_reloc
*) dst
;
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
);
153 #ifdef SWAP_OUT_RELOC_OFFSET
154 SWAP_OUT_RELOC_OFFSET (abfd
, reloc_src
->r_offset
, reloc_dst
->r_offset
);
156 #ifdef SWAP_OUT_RELOC_EXTRA
157 SWAP_OUT_RELOC_EXTRA (abfd
, reloc_src
, reloc_dst
);
161 #endif /* not NO_COFF_RELOCS */
163 #ifdef COFF_IMAGE_WITH_PE
165 #define FILHDR struct external_PEI_IMAGE_hdr
169 coff_swap_filehdr_in (bfd
* abfd
, void * src
, void * dst
)
171 FILHDR
*filehdr_src
= (FILHDR
*) src
;
172 struct internal_filehdr
*filehdr_dst
= (struct internal_filehdr
*) dst
;
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
);
181 /* Other people's tools sometimes generate headers with an nsyms but
183 if (filehdr_dst
->f_nsyms
!= 0 && filehdr_dst
->f_symptr
== 0)
185 filehdr_dst
->f_nsyms
= 0;
186 filehdr_dst
->f_flags
|= F_LSYMS
;
189 filehdr_dst
->f_opthdr
= H_GET_16 (abfd
, filehdr_src
-> f_opthdr
);
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
201 # define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out
205 coff_swap_scnhdr_in (bfd
* abfd
, void * ext
, void * in
)
207 SCNHDR
*scnhdr_ext
= (SCNHDR
*) ext
;
208 struct internal_scnhdr
*scnhdr_int
= (struct internal_scnhdr
*) in
;
210 memcpy (scnhdr_int
->s_name
, scnhdr_ext
->s_name
, sizeof (scnhdr_int
->s_name
));
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
);
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;
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
);
232 if (scnhdr_int
->s_vaddr
!= 0)
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;
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
254 scnhdr_int
->s_size
= scnhdr_int
->s_paddr
;
259 pe_mkobject (bfd
* abfd
)
262 size_t amt
= sizeof (pe_data_type
);
264 abfd
->tdata
.pe_obj_data
= (struct pe_tdata
*) bfd_zalloc (abfd
, amt
);
266 if (abfd
->tdata
.pe_obj_data
== 0)
273 /* in_reloc_p is architecture dependent. */
274 pe
->in_reloc_p
= in_reloc_p
;
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;
294 memset (& pe
->pe_opthdr
, 0, sizeof pe
->pe_opthdr
);
298 /* Create the COFF backend specific information. */
301 pe_mkobject_hook (bfd
* abfd
,
303 void * aouthdr ATTRIBUTE_UNUSED
)
305 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
308 if (! pe_mkobject (abfd
))
312 pe
->coff
.sym_filepos
= internal_f
->f_symptr
;
313 /* These members communicate important constants about the symbol
314 table to GDB's symbol-reading code. These `constants'
315 unfortunately vary among coff implementations... */
316 pe
->coff
.local_n_btmask
= N_BTMASK
;
317 pe
->coff
.local_n_btshft
= N_BTSHFT
;
318 pe
->coff
.local_n_tmask
= N_TMASK
;
319 pe
->coff
.local_n_tshift
= N_TSHIFT
;
320 pe
->coff
.local_symesz
= SYMESZ
;
321 pe
->coff
.local_auxesz
= AUXESZ
;
322 pe
->coff
.local_linesz
= LINESZ
;
324 pe
->coff
.timestamp
= internal_f
->f_timdat
;
326 obj_raw_syment_count (abfd
) =
327 obj_conv_table_size (abfd
) =
330 pe
->real_flags
= internal_f
->f_flags
;
332 if ((internal_f
->f_flags
& F_DLL
) != 0)
335 if ((internal_f
->f_flags
& IMAGE_FILE_DEBUG_STRIPPED
) == 0)
336 abfd
->flags
|= HAS_DEBUG
;
338 #ifdef COFF_IMAGE_WITH_PE
340 pe
->pe_opthdr
= ((struct internal_aouthdr
*) aouthdr
)->pe
;
344 if (! _bfd_coff_arm_set_private_flags (abfd
, internal_f
->f_flags
))
345 coff_data (abfd
) ->flags
= 0;
348 memcpy (pe
->dos_message
, internal_f
->pe
.dos_message
,
349 sizeof (pe
->dos_message
));
355 pe_print_private_bfd_data (bfd
*abfd
, void * vfile
)
357 FILE *file
= (FILE *) vfile
;
359 if (!_bfd_XX_print_private_bfd_data_common (abfd
, vfile
))
362 if (pe_saved_coff_bfd_print_private_bfd_data
== NULL
)
367 return pe_saved_coff_bfd_print_private_bfd_data (abfd
, vfile
);
370 /* Copy any private info we understand from the input bfd
371 to the output bfd. */
374 pe_bfd_copy_private_bfd_data (bfd
*ibfd
, bfd
*obfd
)
376 /* PR binutils/716: Copy the large address aware flag.
377 XXX: Should we be copying other flags or other fields in the pe_data()
379 if (pe_data (obfd
) != NULL
380 && pe_data (ibfd
) != NULL
381 && pe_data (ibfd
)->real_flags
& IMAGE_FILE_LARGE_ADDRESS_AWARE
)
382 pe_data (obfd
)->real_flags
|= IMAGE_FILE_LARGE_ADDRESS_AWARE
;
384 if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd
, obfd
))
387 if (pe_saved_coff_bfd_copy_private_bfd_data
)
388 return pe_saved_coff_bfd_copy_private_bfd_data (ibfd
, obfd
);
393 #define coff_bfd_copy_private_section_data \
394 _bfd_XX_bfd_copy_private_section_data
396 #define coff_get_symbol_info _bfd_XX_get_symbol_info
398 #ifdef COFF_IMAGE_WITH_PE
400 /* Code to handle Microsoft's Image Library Format.
401 Also known as LINK6 format.
402 Documentation about this format can be found at:
404 http://msdn.microsoft.com/library/specs/pecoff_section8.htm */
406 /* The following constants specify the sizes of the various data
407 structures that we have to create in order to build a bfd describing
408 an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6
409 and SIZEOF_IDATA7 below is to allow for the possibility that we might
410 need a padding byte in order to ensure 16 bit alignment for the section's
413 The value for SIZEOF_ILF_STRINGS is computed as follows:
415 There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters
416 per symbol for their names (longest section name is .idata$x).
418 There will be two symbols for the imported value, one the symbol name
419 and one with _imp__ prefixed. Allowing for the terminating nul's this
420 is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll).
422 The strings in the string table must start STRING__SIZE_SIZE bytes into
423 the table in order to for the string lookup code in coffgen/coffcode to
425 #define NUM_ILF_RELOCS 8
426 #define NUM_ILF_SECTIONS 6
427 #define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS)
429 #define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache))
430 #define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table))
431 #define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms))
432 #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table))
433 #define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table))
434 #define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab))
435 #define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab))
436 #define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \
437 + 21 + strlen (source_dll) \
438 + NUM_ILF_SECTIONS * 9 \
440 #define SIZEOF_IDATA2 (5 * 4)
442 /* For PEx64 idata4 & 5 have thumb size of 8 bytes. */
443 #ifdef COFF_WITH_pex64
444 #define SIZEOF_IDATA4 (2 * 4)
445 #define SIZEOF_IDATA5 (2 * 4)
447 #define SIZEOF_IDATA4 (1 * 4)
448 #define SIZEOF_IDATA5 (1 * 4)
451 #define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1)
452 #define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1)
453 #define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata))
455 #define ILF_DATA_SIZE \
457 + SIZEOF_ILF_SYM_TABLE \
458 + SIZEOF_ILF_NATIVE_SYMS \
459 + SIZEOF_ILF_SYM_PTR_TABLE \
460 + SIZEOF_ILF_EXT_SYMS \
461 + SIZEOF_ILF_RELOCS \
462 + SIZEOF_ILF_INT_RELOCS \
463 + SIZEOF_ILF_STRINGS \
469 + SIZEOF_ILF_SECTIONS \
470 + MAX_TEXT_SECTION_SIZE
472 /* Create an empty relocation against the given symbol. */
475 pe_ILF_make_a_symbol_reloc (pe_ILF_vars
* vars
,
477 bfd_reloc_code_real_type reloc
,
478 struct bfd_symbol
** sym
,
479 unsigned int sym_index
)
482 struct internal_reloc
* internal
;
484 entry
= vars
->reltab
+ vars
->relcount
;
485 internal
= vars
->int_reltab
+ vars
->relcount
;
487 entry
->address
= address
;
489 entry
->howto
= bfd_reloc_type_lookup (vars
->abfd
, reloc
);
490 entry
->sym_ptr_ptr
= sym
;
492 internal
->r_vaddr
= address
;
493 internal
->r_symndx
= sym_index
;
494 internal
->r_type
= entry
->howto
? entry
->howto
->type
: 0;
498 BFD_ASSERT (vars
->relcount
<= NUM_ILF_RELOCS
);
501 /* Create an empty relocation against the given section. */
504 pe_ILF_make_a_reloc (pe_ILF_vars
* vars
,
506 bfd_reloc_code_real_type reloc
,
509 pe_ILF_make_a_symbol_reloc (vars
, address
, reloc
, sec
->symbol_ptr_ptr
,
510 coff_section_data (vars
->abfd
, sec
)->i
);
513 /* Move the queued relocs into the given section. */
516 pe_ILF_save_relocs (pe_ILF_vars
* vars
,
519 /* Make sure that there is somewhere to store the internal relocs. */
520 if (coff_section_data (vars
->abfd
, sec
) == NULL
)
521 /* We should probably return an error indication here. */
524 coff_section_data (vars
->abfd
, sec
)->relocs
= vars
->int_reltab
;
525 coff_section_data (vars
->abfd
, sec
)->keep_relocs
= true;
527 sec
->relocation
= vars
->reltab
;
528 sec
->reloc_count
= vars
->relcount
;
529 sec
->flags
|= SEC_RELOC
;
531 vars
->reltab
+= vars
->relcount
;
532 vars
->int_reltab
+= vars
->relcount
;
535 BFD_ASSERT ((bfd_byte
*) vars
->int_reltab
< (bfd_byte
*) vars
->string_table
);
538 /* Create a global symbol and add it to the relevant tables. */
541 pe_ILF_make_a_symbol (pe_ILF_vars
* vars
,
543 const char * symbol_name
,
544 asection_ptr section
,
545 flagword extra_flags
)
547 coff_symbol_type
* sym
;
548 combined_entry_type
* ent
;
550 unsigned short sclass
;
552 if (extra_flags
& BSF_LOCAL
)
558 if (vars
->magic
== THUMBPEMAGIC
)
560 if (extra_flags
& BSF_FUNCTION
)
561 sclass
= C_THUMBEXTFUNC
;
562 else if (extra_flags
& BSF_LOCAL
)
563 sclass
= C_THUMBSTAT
;
569 BFD_ASSERT (vars
->sym_index
< NUM_ILF_SYMS
);
572 ent
= vars
->native_ptr
;
573 esym
= vars
->esym_ptr
;
575 /* Copy the symbol's name into the string table. */
576 sprintf (vars
->string_ptr
, "%s%s", prefix
, symbol_name
);
579 section
= bfd_und_section_ptr
;
581 /* Initialise the external symbol. */
582 H_PUT_32 (vars
->abfd
, vars
->string_ptr
- vars
->string_table
,
584 H_PUT_16 (vars
->abfd
, section
->target_index
, esym
->e_scnum
);
585 esym
->e_sclass
[0] = sclass
;
587 /* The following initialisations are unnecessary - the memory is
588 zero initialised. They are just kept here as reminders. */
590 /* Initialise the internal symbol structure. */
591 ent
->u
.syment
.n_sclass
= sclass
;
592 ent
->u
.syment
.n_scnum
= section
->target_index
;
593 ent
->u
.syment
._n
._n_n
._n_offset
= (uintptr_t) sym
;
596 sym
->symbol
.the_bfd
= vars
->abfd
;
597 sym
->symbol
.name
= vars
->string_ptr
;
598 sym
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
| extra_flags
;
599 sym
->symbol
.section
= section
;
602 * vars
->table_ptr
= vars
->sym_index
;
603 * vars
->sym_ptr_ptr
= sym
;
605 /* Adjust pointers for the next symbol. */
608 vars
->sym_ptr_ptr
++;
612 vars
->string_ptr
+= strlen (symbol_name
) + strlen (prefix
) + 1;
614 BFD_ASSERT (vars
->string_ptr
< vars
->end_string_ptr
);
617 /* Create a section. */
620 pe_ILF_make_a_section (pe_ILF_vars
* vars
,
623 flagword extra_flags
)
629 sec
= bfd_make_section_old_way (vars
->abfd
, name
);
633 flags
= SEC_HAS_CONTENTS
| SEC_ALLOC
| SEC_LOAD
| SEC_KEEP
| SEC_IN_MEMORY
;
635 bfd_set_section_flags (sec
, flags
| extra_flags
);
637 bfd_set_section_alignment (sec
, 2);
639 /* Check that we will not run out of space. */
640 BFD_ASSERT (vars
->data
+ size
< vars
->bim
->buffer
+ vars
->bim
->size
);
642 /* Set the section size and contents. The actual
643 contents are filled in by our parent. */
644 bfd_set_section_size (sec
, (bfd_size_type
) size
);
645 sec
->contents
= vars
->data
;
646 sec
->target_index
= vars
->sec_index
++;
648 /* Advance data pointer in the vars structure. */
651 /* Skip the padding byte if it was not needed.
652 The logic here is that if the string length is odd,
653 then the entire string length, including the null byte,
654 is even and so the extra, padding byte, is not needed. */
658 /* PR 18758: See note in pe_ILF_buid_a_bfd. We must make sure that we
659 preserve host alignment requirements. The BFD_ASSERTs in this
660 functions will warn us if we run out of room, but we should
661 already have enough padding built in to ILF_DATA_SIZE. */
662 #if GCC_VERSION >= 3000
663 alignment
= __alignof__ (struct coff_section_tdata
);
668 = (bfd_byte
*) (((intptr_t) vars
->data
+ alignment
- 1) & -alignment
);
670 /* Create a coff_section_tdata structure for our use. */
671 sec
->used_by_bfd
= (struct coff_section_tdata
*) vars
->data
;
672 vars
->data
+= sizeof (struct coff_section_tdata
);
674 BFD_ASSERT (vars
->data
<= vars
->bim
->buffer
+ vars
->bim
->size
);
676 /* Create a symbol to refer to this section. */
677 pe_ILF_make_a_symbol (vars
, "", name
, sec
, BSF_LOCAL
);
679 /* Cache the index to the symbol in the coff_section_data structure. */
680 coff_section_data (vars
->abfd
, sec
)->i
= vars
->sym_index
- 1;
685 /* This structure contains the code that goes into the .text section
686 in order to perform a jump into the DLL lookup table. The entries
687 in the table are index by the magic number used to represent the
688 machine type in the PE file. The contents of the data[] arrays in
689 these entries are stolen from the jtab[] arrays in ld/pe-dll.c.
690 The SIZE field says how many bytes in the DATA array are actually
691 used. The OFFSET field says where in the data array the address
692 of the .idata$5 section should be placed. */
693 #define MAX_TEXT_SECTION_SIZE 32
697 unsigned short magic
;
698 unsigned char data
[MAX_TEXT_SECTION_SIZE
];
704 static const jump_table jtab
[] =
708 { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 },
715 { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 },
722 { /* XXX fill me in */ },
727 #ifdef MIPS_ARCH_MAGIC_WINCE
728 { MIPS_ARCH_MAGIC_WINCE
,
729 { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d,
730 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 },
735 #ifdef SH_ARCH_MAGIC_WINCE
736 { SH_ARCH_MAGIC_WINCE
,
737 { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40,
738 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 },
744 /* We don't currently support jumping to DLLs, so if
745 someone does try emit a runtime trap. Through UDF #0. */
747 { 0x00, 0x00, 0x00, 0x00 },
755 { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0,
756 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00},
763 { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46,
764 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 },
769 #ifdef LOONGARCH64MAGIC
770 /* We don't currently support jumping to DLLs, so if
771 someone does try emit a runtime trap. Through BREAK 0. */
773 { 0x00, 0x00, 0x2a, 0x00 },
783 #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0])
786 /* Build a full BFD from the information supplied in a ILF object. */
789 pe_ILF_build_a_bfd (bfd
* abfd
,
793 unsigned int ordinal
,
798 struct internal_filehdr internal_f
;
799 unsigned int import_type
;
800 unsigned int import_name_type
;
801 asection_ptr id4
, id5
, id6
= NULL
, text
= NULL
;
802 coff_symbol_type
** imp_sym
;
803 unsigned int imp_index
;
806 /* Decode and verify the types field of the ILF structure. */
807 import_type
= types
& 0x3;
808 import_name_type
= (types
& 0x1c) >> 2;
817 /* XXX code yet to be written. */
818 /* xgettext:c-format */
819 _bfd_error_handler (_("%pB: unhandled import type; %x"),
824 /* xgettext:c-format */
825 _bfd_error_handler (_("%pB: unrecognized import type; %x"),
830 switch (import_name_type
)
834 case IMPORT_NAME_NOPREFIX
:
835 case IMPORT_NAME_UNDECORATE
:
839 /* xgettext:c-format */
840 _bfd_error_handler (_("%pB: unrecognized import name type; %x"),
841 abfd
, import_name_type
);
845 /* Initialise local variables.
847 Note these are kept in a structure rather than being
848 declared as statics since bfd frowns on global variables.
850 We are going to construct the contents of the BFD in memory,
851 so allocate all the space that we will need right now. */
853 = (struct bfd_in_memory
*) bfd_malloc ((bfd_size_type
) sizeof (*vars
.bim
));
854 if (vars
.bim
== NULL
)
857 ptr
= (bfd_byte
*) bfd_zmalloc ((bfd_size_type
) ILF_DATA_SIZE
);
858 vars
.bim
->buffer
= ptr
;
859 vars
.bim
->size
= ILF_DATA_SIZE
;
863 /* Initialise the pointers to regions of the memory and the
864 other contents of the pe_ILF_vars structure as well. */
865 vars
.sym_cache
= (coff_symbol_type
*) ptr
;
866 vars
.sym_ptr
= (coff_symbol_type
*) ptr
;
868 ptr
+= SIZEOF_ILF_SYMS
;
870 vars
.sym_table
= (unsigned int *) ptr
;
871 vars
.table_ptr
= (unsigned int *) ptr
;
872 ptr
+= SIZEOF_ILF_SYM_TABLE
;
874 vars
.native_syms
= (combined_entry_type
*) ptr
;
875 vars
.native_ptr
= (combined_entry_type
*) ptr
;
876 ptr
+= SIZEOF_ILF_NATIVE_SYMS
;
878 vars
.sym_ptr_table
= (coff_symbol_type
**) ptr
;
879 vars
.sym_ptr_ptr
= (coff_symbol_type
**) ptr
;
880 ptr
+= SIZEOF_ILF_SYM_PTR_TABLE
;
882 vars
.esym_table
= (SYMENT
*) ptr
;
883 vars
.esym_ptr
= (SYMENT
*) ptr
;
884 ptr
+= SIZEOF_ILF_EXT_SYMS
;
886 vars
.reltab
= (arelent
*) ptr
;
888 ptr
+= SIZEOF_ILF_RELOCS
;
890 vars
.int_reltab
= (struct internal_reloc
*) ptr
;
891 ptr
+= SIZEOF_ILF_INT_RELOCS
;
893 vars
.string_table
= (char *) ptr
;
894 vars
.string_ptr
= (char *) ptr
+ STRING_SIZE_SIZE
;
895 ptr
+= SIZEOF_ILF_STRINGS
;
896 vars
.end_string_ptr
= (char *) ptr
;
898 /* The remaining space in bim->buffer is used
899 by the pe_ILF_make_a_section() function. */
901 /* PR 18758: Make sure that the data area is sufficiently aligned for
902 struct coff_section_tdata. __alignof__ is a gcc extension, hence
903 the test of GCC_VERSION. For other compilers we assume 8 byte
905 #if GCC_VERSION >= 3000
906 alignment
= __alignof__ (struct coff_section_tdata
);
910 ptr
= (bfd_byte
*) (((intptr_t) ptr
+ alignment
- 1) & -alignment
);
917 /* Create the initial .idata$<n> sections:
918 [.idata$2: Import Directory Table -- not needed]
919 .idata$4: Import Lookup Table
920 .idata$5: Import Address Table
922 Note we do not create a .idata$3 section as this is
923 created for us by the linker script. */
924 id4
= pe_ILF_make_a_section (& vars
, ".idata$4", SIZEOF_IDATA4
, 0);
925 id5
= pe_ILF_make_a_section (& vars
, ".idata$5", SIZEOF_IDATA5
, 0);
926 if (id4
== NULL
|| id5
== NULL
)
929 /* Fill in the contents of these sections. */
930 if (import_name_type
== IMPORT_ORDINAL
)
933 /* See PR 20907 for a reproducer. */
936 #if defined(COFF_WITH_pex64) || defined(COFF_WITH_peAArch64) || defined(COFF_WITH_peLoongArch64)
937 ((unsigned int *) id4
->contents
)[0] = ordinal
;
938 ((unsigned int *) id4
->contents
)[1] = 0x80000000;
939 ((unsigned int *) id5
->contents
)[0] = ordinal
;
940 ((unsigned int *) id5
->contents
)[1] = 0x80000000;
942 * (unsigned int *) id4
->contents
= ordinal
| 0x80000000;
943 * (unsigned int *) id5
->contents
= ordinal
| 0x80000000;
951 /* Create .idata$6 - the Hint Name Table. */
952 id6
= pe_ILF_make_a_section (& vars
, ".idata$6", SIZEOF_IDATA6
, 0);
956 /* If necessary, trim the import symbol name. */
957 symbol
= symbol_name
;
959 /* As used by MS compiler, '_', '@', and '?' are alternative
960 forms of USER_LABEL_PREFIX, with '?' for c++ mangled names,
961 '@' used for fastcall (in C), '_' everywhere else. Only one
962 of these is used for a symbol. We strip this leading char for
963 IMPORT_NAME_NOPREFIX and IMPORT_NAME_UNDECORATE as per the
964 PE COFF 6.0 spec (section 8.3, Import Name Type). */
966 if (import_name_type
!= IMPORT_NAME
)
970 /* Check that we don't remove for targets with empty
971 USER_LABEL_PREFIX the leading underscore. */
972 if ((c
== '_' && abfd
->xvec
->symbol_leading_char
!= 0)
973 || c
== '@' || c
== '?')
977 len
= strlen (symbol
);
978 if (import_name_type
== IMPORT_NAME_UNDECORATE
)
980 /* Truncate at the first '@'. */
981 char *at
= strchr (symbol
, '@');
987 id6
->contents
[0] = ordinal
& 0xff;
988 id6
->contents
[1] = ordinal
>> 8;
990 memcpy ((char *) id6
->contents
+ 2, symbol
, len
);
991 id6
->contents
[len
+ 2] = '\0';
994 if (import_name_type
!= IMPORT_ORDINAL
)
996 pe_ILF_make_a_reloc (&vars
, (bfd_vma
) 0, BFD_RELOC_RVA
, id6
);
997 pe_ILF_save_relocs (&vars
, id4
);
999 pe_ILF_make_a_reloc (&vars
, (bfd_vma
) 0, BFD_RELOC_RVA
, id6
);
1000 pe_ILF_save_relocs (&vars
, id5
);
1003 /* Create an import symbol. */
1004 pe_ILF_make_a_symbol (& vars
, "__imp_", symbol_name
, id5
, 0);
1005 imp_sym
= vars
.sym_ptr_ptr
- 1;
1006 imp_index
= vars
.sym_index
- 1;
1008 /* Create extra sections depending upon the type of import we are dealing with. */
1009 switch (import_type
)
1014 /* CODE functions are special, in that they get a trampoline that
1015 jumps to the main import symbol. Create a .text section to hold it.
1016 First we need to look up its contents in the jump table. */
1017 for (i
= NUM_ENTRIES (jtab
); i
--;)
1019 if (jtab
[i
].size
== 0)
1021 if (jtab
[i
].magic
== magic
)
1024 /* If we did not find a matching entry something is wrong. */
1028 /* Create the .text section. */
1029 text
= pe_ILF_make_a_section (& vars
, ".text", jtab
[i
].size
, SEC_CODE
);
1033 /* Copy in the jump code. */
1034 memcpy (text
->contents
, jtab
[i
].data
, jtab
[i
].size
);
1036 /* Create a reloc for the data in the text section. */
1037 #ifdef MIPS_ARCH_MAGIC_WINCE
1038 if (magic
== MIPS_ARCH_MAGIC_WINCE
)
1040 pe_ILF_make_a_symbol_reloc (&vars
, (bfd_vma
) 0, BFD_RELOC_HI16_S
,
1041 (struct bfd_symbol
**) imp_sym
,
1043 pe_ILF_make_a_reloc (&vars
, (bfd_vma
) 0, BFD_RELOC_LO16
, text
);
1044 pe_ILF_make_a_symbol_reloc (&vars
, (bfd_vma
) 4, BFD_RELOC_LO16
,
1045 (struct bfd_symbol
**) imp_sym
,
1051 if (magic
== AMD64MAGIC
)
1053 pe_ILF_make_a_symbol_reloc (&vars
, (bfd_vma
) jtab
[i
].offset
,
1054 BFD_RELOC_32_PCREL
, (asymbol
**) imp_sym
,
1059 pe_ILF_make_a_symbol_reloc (&vars
, (bfd_vma
) jtab
[i
].offset
,
1060 BFD_RELOC_32
, (asymbol
**) imp_sym
,
1063 pe_ILF_save_relocs (& vars
, text
);
1070 /* XXX code not yet written. */
1074 /* Initialise the bfd. */
1075 memset (& internal_f
, 0, sizeof (internal_f
));
1077 internal_f
.f_magic
= magic
;
1078 internal_f
.f_symptr
= 0;
1079 internal_f
.f_nsyms
= 0;
1080 internal_f
.f_flags
= F_AR32WR
| F_LNNO
; /* XXX is this correct ? */
1082 if ( ! bfd_set_start_address (abfd
, (bfd_vma
) 0)
1083 || ! bfd_coff_set_arch_mach_hook (abfd
, & internal_f
))
1086 if (bfd_coff_mkobject_hook (abfd
, (void *) & internal_f
, NULL
) == NULL
)
1089 coff_data (abfd
)->pe
= 1;
1091 if (vars
.magic
== THUMBPEMAGIC
)
1092 /* Stop some linker warnings about thumb code not supporting interworking. */
1093 coff_data (abfd
)->flags
|= F_INTERWORK
| F_INTERWORK_SET
;
1096 /* Switch from file contents to memory contents. */
1097 bfd_cache_close (abfd
);
1099 abfd
->iostream
= (void *) vars
.bim
;
1100 abfd
->flags
|= BFD_IN_MEMORY
/* | HAS_LOCALS */;
1101 abfd
->iovec
= &_bfd_memory_iovec
;
1104 obj_sym_filepos (abfd
) = 0;
1106 /* Now create a symbol describing the imported value. */
1107 switch (import_type
)
1110 pe_ILF_make_a_symbol (& vars
, "", symbol_name
, text
,
1111 BSF_NOT_AT_END
| BSF_FUNCTION
);
1116 /* Nothing to do here. */
1120 /* XXX code not yet written. */
1124 /* Create an import symbol for the DLL, without the .dll suffix. */
1125 ptr
= (bfd_byte
*) strrchr (source_dll
, '.');
1128 pe_ILF_make_a_symbol (& vars
, "__IMPORT_DESCRIPTOR_", source_dll
, NULL
, 0);
1132 /* Point the bfd at the symbol table. */
1133 obj_symbols (abfd
) = vars
.sym_cache
;
1134 abfd
->symcount
= vars
.sym_index
;
1136 obj_raw_syments (abfd
) = vars
.native_syms
;
1137 obj_raw_syment_count (abfd
) = vars
.sym_index
;
1139 obj_coff_external_syms (abfd
) = (void *) vars
.esym_table
;
1140 obj_coff_keep_syms (abfd
) = true;
1142 obj_convert (abfd
) = vars
.sym_table
;
1143 obj_conv_table_size (abfd
) = vars
.sym_index
;
1145 obj_coff_strings (abfd
) = vars
.string_table
;
1146 obj_coff_keep_strings (abfd
) = true;
1148 abfd
->flags
|= HAS_SYMS
;
1153 free (vars
.bim
->buffer
);
1158 /* We have detected a Image Library Format archive element.
1159 Decode the element and return the appropriate target. */
1162 pe_ILF_object_p (bfd
* abfd
)
1164 bfd_byte buffer
[14];
1168 unsigned int machine
;
1170 unsigned int ordinal
;
1174 /* Upon entry the first six bytes of the ILF header have
1175 already been read. Now read the rest of the header. */
1176 if (bfd_bread (buffer
, (bfd_size_type
) 14, abfd
) != 14)
1181 machine
= H_GET_16 (abfd
, ptr
);
1184 /* Check that the machine type is recognised. */
1189 case IMAGE_FILE_MACHINE_UNKNOWN
:
1190 case IMAGE_FILE_MACHINE_ALPHA
:
1191 case IMAGE_FILE_MACHINE_ALPHA64
:
1192 case IMAGE_FILE_MACHINE_IA64
:
1195 case IMAGE_FILE_MACHINE_I386
:
1201 case IMAGE_FILE_MACHINE_AMD64
:
1207 case IMAGE_FILE_MACHINE_R3000
:
1208 case IMAGE_FILE_MACHINE_R4000
:
1209 case IMAGE_FILE_MACHINE_R10000
:
1211 case IMAGE_FILE_MACHINE_MIPS16
:
1212 case IMAGE_FILE_MACHINE_MIPSFPU
:
1213 case IMAGE_FILE_MACHINE_MIPSFPU16
:
1214 #ifdef MIPS_ARCH_MAGIC_WINCE
1215 magic
= MIPS_ARCH_MAGIC_WINCE
;
1219 case IMAGE_FILE_MACHINE_SH3
:
1220 case IMAGE_FILE_MACHINE_SH4
:
1221 #ifdef SH_ARCH_MAGIC_WINCE
1222 magic
= SH_ARCH_MAGIC_WINCE
;
1226 case IMAGE_FILE_MACHINE_ARM
:
1232 case IMAGE_FILE_MACHINE_ARM64
:
1234 magic
= AARCH64MAGIC
;
1238 case IMAGE_FILE_MACHINE_LOONGARCH64
:
1239 #ifdef LOONGARCH64MAGIC
1240 magic
= LOONGARCH64MAGIC
;
1244 case IMAGE_FILE_MACHINE_THUMB
:
1247 extern const bfd_target TARGET_LITTLE_SYM
;
1249 if (abfd
->xvec
== & TARGET_LITTLE_SYM
)
1250 magic
= THUMBPEMAGIC
;
1255 case IMAGE_FILE_MACHINE_POWERPC
:
1256 /* We no longer support PowerPC. */
1259 /* xgettext:c-format */
1260 (_("%pB: unrecognised machine type (0x%x)"
1261 " in Import Library Format archive"),
1263 bfd_set_error (bfd_error_malformed_archive
);
1272 /* xgettext:c-format */
1273 (_("%pB: recognised but unhandled machine type (0x%x)"
1274 " in Import Library Format archive"),
1276 bfd_set_error (bfd_error_wrong_format
);
1281 /* We do not bother to check the date.
1282 date = H_GET_32 (abfd, ptr); */
1285 size
= H_GET_32 (abfd
, ptr
);
1291 (_("%pB: size field is zero in Import Library Format header"), abfd
);
1292 bfd_set_error (bfd_error_malformed_archive
);
1297 ordinal
= H_GET_16 (abfd
, ptr
);
1300 types
= H_GET_16 (abfd
, ptr
);
1303 /* Now read in the two strings that follow. */
1304 ptr
= (bfd_byte
*) _bfd_alloc_and_read (abfd
, size
, size
);
1308 symbol_name
= (char *) ptr
;
1309 /* See PR 20905 for an example of where the strnlen is necessary. */
1310 source_dll
= symbol_name
+ strnlen (symbol_name
, size
- 1) + 1;
1312 /* Verify that the strings are null terminated. */
1313 if (ptr
[size
- 1] != 0
1314 || (bfd_size_type
) ((bfd_byte
*) source_dll
- ptr
) >= size
)
1317 (_("%pB: string not null terminated in ILF object file"), abfd
);
1318 bfd_set_error (bfd_error_malformed_archive
);
1319 bfd_release (abfd
, ptr
);
1323 /* Now construct the bfd. */
1324 if (! pe_ILF_build_a_bfd (abfd
, magic
, symbol_name
,
1325 source_dll
, ordinal
, types
))
1327 bfd_release (abfd
, ptr
);
1331 return _bfd_no_cleanup
;
1335 pe_bfd_read_buildid (bfd
*abfd
)
1337 pe_data_type
*pe
= pe_data (abfd
);
1338 struct internal_extra_pe_aouthdr
*extra
= &pe
->pe_opthdr
;
1341 bfd_size_type dataoff
;
1343 bfd_vma addr
= extra
->DataDirectory
[PE_DEBUG_DATA
].VirtualAddress
;
1344 bfd_size_type size
= extra
->DataDirectory
[PE_DEBUG_DATA
].Size
;
1349 addr
+= extra
->ImageBase
;
1351 /* Search for the section containing the DebugDirectory. */
1352 for (section
= abfd
->sections
; section
!= NULL
; section
= section
->next
)
1354 if ((addr
>= section
->vma
) && (addr
< (section
->vma
+ section
->size
)))
1358 if (section
== NULL
)
1361 if (!(section
->flags
& SEC_HAS_CONTENTS
))
1364 dataoff
= addr
- section
->vma
;
1366 /* PR 20605 and 22373: Make sure that the data is really there.
1367 Note - since we are dealing with unsigned quantities we have
1368 to be careful to check for potential overflows. */
1369 if (dataoff
>= section
->size
1370 || size
> section
->size
- dataoff
)
1373 (_("%pB: error: debug data ends beyond end of debug directory"),
1378 /* Read the whole section. */
1379 if (!bfd_malloc_and_get_section (abfd
, section
, &data
))
1385 /* Search for a CodeView entry in the DebugDirectory */
1386 for (i
= 0; i
< size
/ sizeof (struct external_IMAGE_DEBUG_DIRECTORY
); i
++)
1388 struct external_IMAGE_DEBUG_DIRECTORY
*ext
1389 = &((struct external_IMAGE_DEBUG_DIRECTORY
*)(data
+ dataoff
))[i
];
1390 struct internal_IMAGE_DEBUG_DIRECTORY idd
;
1392 _bfd_XXi_swap_debugdir_in (abfd
, ext
, &idd
);
1394 if (idd
.Type
== PE_IMAGE_DEBUG_TYPE_CODEVIEW
)
1396 char buffer
[256 + 1];
1397 CODEVIEW_INFO
*cvinfo
= (CODEVIEW_INFO
*) buffer
;
1400 The debug entry doesn't have to have to be in a section, in which
1401 case AddressOfRawData is 0, so always use PointerToRawData.
1403 if (_bfd_XXi_slurp_codeview_record (abfd
,
1404 (file_ptr
) idd
.PointerToRawData
,
1405 idd
.SizeOfData
, cvinfo
, NULL
))
1407 struct bfd_build_id
* build_id
= bfd_alloc (abfd
,
1408 sizeof (struct bfd_build_id
) + cvinfo
->SignatureLength
);
1411 build_id
->size
= cvinfo
->SignatureLength
;
1412 memcpy(build_id
->data
, cvinfo
->Signature
,
1413 cvinfo
->SignatureLength
);
1414 abfd
->build_id
= build_id
;
1425 pe_bfd_object_p (bfd
* abfd
)
1428 struct external_DOS_hdr dos_hdr
;
1429 struct external_PEI_IMAGE_hdr image_hdr
;
1430 struct internal_filehdr internal_f
;
1431 struct internal_aouthdr internal_a
;
1432 bfd_size_type opt_hdr_size
;
1436 /* Detect if this a Microsoft Import Library Format element. */
1437 /* First read the beginning of the header. */
1438 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0
1439 || bfd_bread (buffer
, (bfd_size_type
) 6, abfd
) != 6)
1441 if (bfd_get_error () != bfd_error_system_call
)
1442 bfd_set_error (bfd_error_wrong_format
);
1446 /* Then check the magic and the version (only 0 is supported). */
1447 if (H_GET_32 (abfd
, buffer
) == 0xffff0000
1448 && H_GET_16 (abfd
, buffer
+ 4) == 0)
1449 return pe_ILF_object_p (abfd
);
1451 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0
1452 || bfd_bread (&dos_hdr
, (bfd_size_type
) sizeof (dos_hdr
), abfd
)
1453 != sizeof (dos_hdr
))
1455 if (bfd_get_error () != bfd_error_system_call
)
1456 bfd_set_error (bfd_error_wrong_format
);
1460 /* There are really two magic numbers involved; the magic number
1461 that says this is a NT executable (PEI) and the magic number that
1462 determines the architecture. The former is IMAGE_DOS_SIGNATURE, stored in
1463 the e_magic field. The latter is stored in the f_magic field.
1464 If the NT magic number isn't valid, the architecture magic number
1465 could be mimicked by some other field (specifically, the number
1466 of relocs in section 3). Since this routine can only be called
1467 correctly for a PEI file, check the e_magic number here, and, if
1468 it doesn't match, clobber the f_magic number so that we don't get
1470 if (H_GET_16 (abfd
, dos_hdr
.e_magic
) != IMAGE_DOS_SIGNATURE
)
1472 bfd_set_error (bfd_error_wrong_format
);
1476 offset
= H_GET_32 (abfd
, dos_hdr
.e_lfanew
);
1477 if (bfd_seek (abfd
, offset
, SEEK_SET
) != 0
1478 || (bfd_bread (&image_hdr
, (bfd_size_type
) sizeof (image_hdr
), abfd
)
1479 != sizeof (image_hdr
)))
1481 if (bfd_get_error () != bfd_error_system_call
)
1482 bfd_set_error (bfd_error_wrong_format
);
1486 if (H_GET_32 (abfd
, image_hdr
.nt_signature
) != 0x4550)
1488 bfd_set_error (bfd_error_wrong_format
);
1492 /* Swap file header, so that we get the location for calling
1494 bfd_coff_swap_filehdr_in (abfd
, &image_hdr
, &internal_f
);
1496 if (! bfd_coff_bad_format_hook (abfd
, &internal_f
)
1497 || internal_f
.f_opthdr
> bfd_coff_aoutsz (abfd
))
1499 bfd_set_error (bfd_error_wrong_format
);
1503 memcpy (internal_f
.pe
.dos_message
, dos_hdr
.dos_message
,
1504 sizeof (internal_f
.pe
.dos_message
));
1506 /* Read the optional header, which has variable size. */
1507 opt_hdr_size
= internal_f
.f_opthdr
;
1509 if (opt_hdr_size
!= 0)
1511 bfd_size_type amt
= opt_hdr_size
;
1514 /* PR 17521 file: 230-131433-0.004. */
1515 if (amt
< sizeof (PEAOUTHDR
))
1516 amt
= sizeof (PEAOUTHDR
);
1518 opthdr
= _bfd_alloc_and_read (abfd
, amt
, opt_hdr_size
);
1521 if (amt
> opt_hdr_size
)
1522 memset (opthdr
+ opt_hdr_size
, 0, amt
- opt_hdr_size
);
1524 bfd_coff_swap_aouthdr_in (abfd
, opthdr
, &internal_a
);
1526 struct internal_extra_pe_aouthdr
*a
= &internal_a
.pe
;
1527 if ((a
->SectionAlignment
& -a
->SectionAlignment
) != a
->SectionAlignment
1528 || a
->SectionAlignment
>= 0x80000000)
1530 _bfd_error_handler (_("%pB: adjusting invalid SectionAlignment"),
1532 a
->SectionAlignment
&= -a
->SectionAlignment
;
1533 if (a
->SectionAlignment
>= 0x80000000)
1534 a
->SectionAlignment
= 0x40000000;
1537 if ((a
->FileAlignment
& -a
->FileAlignment
) != a
->FileAlignment
1538 || a
->FileAlignment
> a
->SectionAlignment
)
1540 _bfd_error_handler (_("%pB: adjusting invalid FileAlignment"),
1542 a
->FileAlignment
&= -a
->FileAlignment
;
1543 if (a
->FileAlignment
> a
->SectionAlignment
)
1544 a
->FileAlignment
= a
->SectionAlignment
;
1547 if (a
->NumberOfRvaAndSizes
> IMAGE_NUMBEROF_DIRECTORY_ENTRIES
)
1548 _bfd_error_handler (_("%pB: invalid NumberOfRvaAndSizes"), abfd
);
1551 result
= coff_real_object_p (abfd
, internal_f
.f_nscns
, &internal_f
,
1554 : (struct internal_aouthdr
*) NULL
));
1558 /* Now the whole header has been processed, see if there is a build-id */
1559 pe_bfd_read_buildid(abfd
);
1565 #define coff_object_p pe_bfd_object_p
1566 #endif /* COFF_IMAGE_WITH_PE */