1 /* Support for the generic parts of PE/PEI, for BFD.
2 Copyright (C) 1995-2022 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_pex64
195 # define coff_swap_filehdr_out _bfd_pex64_only_swap_filehdr_out
196 #elif defined COFF_WITH_pep
197 # define coff_swap_filehdr_out _bfd_pep_only_swap_filehdr_out
199 # define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out
203 coff_swap_scnhdr_in (bfd
* abfd
, void * ext
, void * in
)
205 SCNHDR
*scnhdr_ext
= (SCNHDR
*) ext
;
206 struct internal_scnhdr
*scnhdr_int
= (struct internal_scnhdr
*) in
;
208 memcpy (scnhdr_int
->s_name
, scnhdr_ext
->s_name
, sizeof (scnhdr_int
->s_name
));
210 scnhdr_int
->s_vaddr
= GET_SCNHDR_VADDR (abfd
, scnhdr_ext
->s_vaddr
);
211 scnhdr_int
->s_paddr
= GET_SCNHDR_PADDR (abfd
, scnhdr_ext
->s_paddr
);
212 scnhdr_int
->s_size
= GET_SCNHDR_SIZE (abfd
, scnhdr_ext
->s_size
);
213 scnhdr_int
->s_scnptr
= GET_SCNHDR_SCNPTR (abfd
, scnhdr_ext
->s_scnptr
);
214 scnhdr_int
->s_relptr
= GET_SCNHDR_RELPTR (abfd
, scnhdr_ext
->s_relptr
);
215 scnhdr_int
->s_lnnoptr
= GET_SCNHDR_LNNOPTR (abfd
, scnhdr_ext
->s_lnnoptr
);
216 scnhdr_int
->s_flags
= H_GET_32 (abfd
, scnhdr_ext
->s_flags
);
218 /* MS handles overflow of line numbers by carrying into the reloc
219 field (it appears). Since it's supposed to be zero for PE
220 *IMAGE* format, that's safe. This is still a bit iffy. */
221 #ifdef COFF_IMAGE_WITH_PE
222 scnhdr_int
->s_nlnno
= (H_GET_16 (abfd
, scnhdr_ext
->s_nlnno
)
223 + (H_GET_16 (abfd
, scnhdr_ext
->s_nreloc
) << 16));
224 scnhdr_int
->s_nreloc
= 0;
226 scnhdr_int
->s_nreloc
= H_GET_16 (abfd
, scnhdr_ext
->s_nreloc
);
227 scnhdr_int
->s_nlnno
= H_GET_16 (abfd
, scnhdr_ext
->s_nlnno
);
230 if (scnhdr_int
->s_vaddr
!= 0)
232 scnhdr_int
->s_vaddr
+= pe_data (abfd
)->pe_opthdr
.ImageBase
;
233 /* Do not cut upper 32-bits for 64-bit vma. */
234 #if !defined(COFF_WITH_pex64) && !defined(COFF_WITH_peAArch64) && !defined(COFF_WITH_peLoongArch64)
235 scnhdr_int
->s_vaddr
&= 0xffffffff;
239 #ifndef COFF_NO_HACK_SCNHDR_SIZE
240 /* If this section holds uninitialized data and is from an object file
241 or from an executable image that has not initialized the field,
242 or if the image is an executable file and the physical size is padded,
243 use the virtual size (stored in s_paddr) instead. */
244 if (scnhdr_int
->s_paddr
> 0
245 && (((scnhdr_int
->s_flags
& IMAGE_SCN_CNT_UNINITIALIZED_DATA
) != 0
246 && (! bfd_pei_p (abfd
) || scnhdr_int
->s_size
== 0))
247 || (bfd_pei_p (abfd
) && (scnhdr_int
->s_size
> scnhdr_int
->s_paddr
))))
248 /* This code used to set scnhdr_int->s_paddr to 0. However,
249 coff_set_alignment_hook stores s_paddr in virt_size, which
250 only works if it correctly holds the virtual size of the
252 scnhdr_int
->s_size
= scnhdr_int
->s_paddr
;
257 pe_mkobject (bfd
* abfd
)
260 size_t amt
= sizeof (pe_data_type
);
262 abfd
->tdata
.pe_obj_data
= (struct pe_tdata
*) bfd_zalloc (abfd
, amt
);
264 if (abfd
->tdata
.pe_obj_data
== 0)
271 /* in_reloc_p is architecture dependent. */
272 pe
->in_reloc_p
= in_reloc_p
;
274 /* Default DOS message string. */
275 pe
->dos_message
[0] = 0x0eba1f0e;
276 pe
->dos_message
[1] = 0xcd09b400;
277 pe
->dos_message
[2] = 0x4c01b821;
278 pe
->dos_message
[3] = 0x685421cd;
279 pe
->dos_message
[4] = 0x70207369;
280 pe
->dos_message
[5] = 0x72676f72;
281 pe
->dos_message
[6] = 0x63206d61;
282 pe
->dos_message
[7] = 0x6f6e6e61;
283 pe
->dos_message
[8] = 0x65622074;
284 pe
->dos_message
[9] = 0x6e757220;
285 pe
->dos_message
[10] = 0x206e6920;
286 pe
->dos_message
[11] = 0x20534f44;
287 pe
->dos_message
[12] = 0x65646f6d;
288 pe
->dos_message
[13] = 0x0a0d0d2e;
289 pe
->dos_message
[14] = 0x24;
290 pe
->dos_message
[15] = 0x0;
292 memset (& pe
->pe_opthdr
, 0, sizeof pe
->pe_opthdr
);
296 /* Create the COFF backend specific information. */
299 pe_mkobject_hook (bfd
* abfd
,
301 void * aouthdr ATTRIBUTE_UNUSED
)
303 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
306 if (! pe_mkobject (abfd
))
310 pe
->coff
.sym_filepos
= internal_f
->f_symptr
;
311 /* These members communicate important constants about the symbol
312 table to GDB's symbol-reading code. These `constants'
313 unfortunately vary among coff implementations... */
314 pe
->coff
.local_n_btmask
= N_BTMASK
;
315 pe
->coff
.local_n_btshft
= N_BTSHFT
;
316 pe
->coff
.local_n_tmask
= N_TMASK
;
317 pe
->coff
.local_n_tshift
= N_TSHIFT
;
318 pe
->coff
.local_symesz
= SYMESZ
;
319 pe
->coff
.local_auxesz
= AUXESZ
;
320 pe
->coff
.local_linesz
= LINESZ
;
322 pe
->coff
.timestamp
= internal_f
->f_timdat
;
324 obj_raw_syment_count (abfd
) =
325 obj_conv_table_size (abfd
) =
328 pe
->real_flags
= internal_f
->f_flags
;
330 if ((internal_f
->f_flags
& F_DLL
) != 0)
333 if ((internal_f
->f_flags
& IMAGE_FILE_DEBUG_STRIPPED
) == 0)
334 abfd
->flags
|= HAS_DEBUG
;
336 #ifdef COFF_IMAGE_WITH_PE
338 pe
->pe_opthdr
= ((struct internal_aouthdr
*) aouthdr
)->pe
;
342 if (! _bfd_coff_arm_set_private_flags (abfd
, internal_f
->f_flags
))
343 coff_data (abfd
) ->flags
= 0;
346 memcpy (pe
->dos_message
, internal_f
->pe
.dos_message
,
347 sizeof (pe
->dos_message
));
353 pe_print_private_bfd_data (bfd
*abfd
, void * vfile
)
355 FILE *file
= (FILE *) vfile
;
357 if (!_bfd_XX_print_private_bfd_data_common (abfd
, vfile
))
360 if (pe_saved_coff_bfd_print_private_bfd_data
== NULL
)
365 return pe_saved_coff_bfd_print_private_bfd_data (abfd
, vfile
);
368 /* Copy any private info we understand from the input bfd
369 to the output bfd. */
372 pe_bfd_copy_private_bfd_data (bfd
*ibfd
, bfd
*obfd
)
374 /* PR binutils/716: Copy the large address aware flag.
375 XXX: Should we be copying other flags or other fields in the pe_data()
377 if (pe_data (obfd
) != NULL
378 && pe_data (ibfd
) != NULL
379 && pe_data (ibfd
)->real_flags
& IMAGE_FILE_LARGE_ADDRESS_AWARE
)
380 pe_data (obfd
)->real_flags
|= IMAGE_FILE_LARGE_ADDRESS_AWARE
;
382 if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd
, obfd
))
385 if (pe_saved_coff_bfd_copy_private_bfd_data
)
386 return pe_saved_coff_bfd_copy_private_bfd_data (ibfd
, obfd
);
391 #define coff_bfd_copy_private_section_data \
392 _bfd_XX_bfd_copy_private_section_data
394 #define coff_get_symbol_info _bfd_XX_get_symbol_info
396 #ifdef COFF_IMAGE_WITH_PE
398 /* Code to handle Microsoft's Image Library Format.
399 Also known as LINK6 format.
400 Documentation about this format can be found at:
402 http://msdn.microsoft.com/library/specs/pecoff_section8.htm */
404 /* The following constants specify the sizes of the various data
405 structures that we have to create in order to build a bfd describing
406 an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6
407 and SIZEOF_IDATA7 below is to allow for the possibility that we might
408 need a padding byte in order to ensure 16 bit alignment for the section's
411 The value for SIZEOF_ILF_STRINGS is computed as follows:
413 There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters
414 per symbol for their names (longest section name is .idata$x).
416 There will be two symbols for the imported value, one the symbol name
417 and one with _imp__ prefixed. Allowing for the terminating nul's this
418 is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll).
420 The strings in the string table must start STRING__SIZE_SIZE bytes into
421 the table in order to for the string lookup code in coffgen/coffcode to
423 #define NUM_ILF_RELOCS 8
424 #define NUM_ILF_SECTIONS 6
425 #define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS)
427 #define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache))
428 #define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table))
429 #define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms))
430 #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table))
431 #define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table))
432 #define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab))
433 #define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab))
434 #define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \
435 + 21 + strlen (source_dll) \
436 + NUM_ILF_SECTIONS * 9 \
438 #define SIZEOF_IDATA2 (5 * 4)
440 /* For PEx64 idata4 & 5 have thumb size of 8 bytes. */
441 #ifdef COFF_WITH_pex64
442 #define SIZEOF_IDATA4 (2 * 4)
443 #define SIZEOF_IDATA5 (2 * 4)
445 #define SIZEOF_IDATA4 (1 * 4)
446 #define SIZEOF_IDATA5 (1 * 4)
449 #define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1)
450 #define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1)
451 #define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata))
453 #define ILF_DATA_SIZE \
455 + SIZEOF_ILF_SYM_TABLE \
456 + SIZEOF_ILF_NATIVE_SYMS \
457 + SIZEOF_ILF_SYM_PTR_TABLE \
458 + SIZEOF_ILF_EXT_SYMS \
459 + SIZEOF_ILF_RELOCS \
460 + SIZEOF_ILF_INT_RELOCS \
461 + SIZEOF_ILF_STRINGS \
467 + SIZEOF_ILF_SECTIONS \
468 + MAX_TEXT_SECTION_SIZE
470 /* Create an empty relocation against the given symbol. */
473 pe_ILF_make_a_symbol_reloc (pe_ILF_vars
* vars
,
475 bfd_reloc_code_real_type reloc
,
476 struct bfd_symbol
** sym
,
477 unsigned int sym_index
)
480 struct internal_reloc
* internal
;
482 entry
= vars
->reltab
+ vars
->relcount
;
483 internal
= vars
->int_reltab
+ vars
->relcount
;
485 entry
->address
= address
;
487 entry
->howto
= bfd_reloc_type_lookup (vars
->abfd
, reloc
);
488 entry
->sym_ptr_ptr
= sym
;
490 internal
->r_vaddr
= address
;
491 internal
->r_symndx
= sym_index
;
492 internal
->r_type
= entry
->howto
? entry
->howto
->type
: 0;
496 BFD_ASSERT (vars
->relcount
<= NUM_ILF_RELOCS
);
499 /* Create an empty relocation against the given section. */
502 pe_ILF_make_a_reloc (pe_ILF_vars
* vars
,
504 bfd_reloc_code_real_type reloc
,
507 pe_ILF_make_a_symbol_reloc (vars
, address
, reloc
, sec
->symbol_ptr_ptr
,
508 coff_section_data (vars
->abfd
, sec
)->i
);
511 /* Move the queued relocs into the given section. */
514 pe_ILF_save_relocs (pe_ILF_vars
* vars
,
517 /* Make sure that there is somewhere to store the internal relocs. */
518 if (coff_section_data (vars
->abfd
, sec
) == NULL
)
519 /* We should probably return an error indication here. */
522 coff_section_data (vars
->abfd
, sec
)->relocs
= vars
->int_reltab
;
523 coff_section_data (vars
->abfd
, sec
)->keep_relocs
= true;
525 sec
->relocation
= vars
->reltab
;
526 sec
->reloc_count
= vars
->relcount
;
527 sec
->flags
|= SEC_RELOC
;
529 vars
->reltab
+= vars
->relcount
;
530 vars
->int_reltab
+= vars
->relcount
;
533 BFD_ASSERT ((bfd_byte
*) vars
->int_reltab
< (bfd_byte
*) vars
->string_table
);
536 /* Create a global symbol and add it to the relevant tables. */
539 pe_ILF_make_a_symbol (pe_ILF_vars
* vars
,
541 const char * symbol_name
,
542 asection_ptr section
,
543 flagword extra_flags
)
545 coff_symbol_type
* sym
;
546 combined_entry_type
* ent
;
548 unsigned short sclass
;
550 if (extra_flags
& BSF_LOCAL
)
556 if (vars
->magic
== THUMBPEMAGIC
)
558 if (extra_flags
& BSF_FUNCTION
)
559 sclass
= C_THUMBEXTFUNC
;
560 else if (extra_flags
& BSF_LOCAL
)
561 sclass
= C_THUMBSTAT
;
567 BFD_ASSERT (vars
->sym_index
< NUM_ILF_SYMS
);
570 ent
= vars
->native_ptr
;
571 esym
= vars
->esym_ptr
;
573 /* Copy the symbol's name into the string table. */
574 sprintf (vars
->string_ptr
, "%s%s", prefix
, symbol_name
);
577 section
= bfd_und_section_ptr
;
579 /* Initialise the external symbol. */
580 H_PUT_32 (vars
->abfd
, vars
->string_ptr
- vars
->string_table
,
582 H_PUT_16 (vars
->abfd
, section
->target_index
, esym
->e_scnum
);
583 esym
->e_sclass
[0] = sclass
;
585 /* The following initialisations are unnecessary - the memory is
586 zero initialised. They are just kept here as reminders. */
588 /* Initialise the internal symbol structure. */
589 ent
->u
.syment
.n_sclass
= sclass
;
590 ent
->u
.syment
.n_scnum
= section
->target_index
;
591 ent
->u
.syment
._n
._n_n
._n_offset
= (uintptr_t) sym
;
594 sym
->symbol
.the_bfd
= vars
->abfd
;
595 sym
->symbol
.name
= vars
->string_ptr
;
596 sym
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
| extra_flags
;
597 sym
->symbol
.section
= section
;
600 * vars
->table_ptr
= vars
->sym_index
;
601 * vars
->sym_ptr_ptr
= sym
;
603 /* Adjust pointers for the next symbol. */
606 vars
->sym_ptr_ptr
++;
610 vars
->string_ptr
+= strlen (symbol_name
) + strlen (prefix
) + 1;
612 BFD_ASSERT (vars
->string_ptr
< vars
->end_string_ptr
);
615 /* Create a section. */
618 pe_ILF_make_a_section (pe_ILF_vars
* vars
,
621 flagword extra_flags
)
627 sec
= bfd_make_section_old_way (vars
->abfd
, name
);
631 flags
= SEC_HAS_CONTENTS
| SEC_ALLOC
| SEC_LOAD
| SEC_KEEP
| SEC_IN_MEMORY
;
633 bfd_set_section_flags (sec
, flags
| extra_flags
);
635 bfd_set_section_alignment (sec
, 2);
637 /* Check that we will not run out of space. */
638 BFD_ASSERT (vars
->data
+ size
< vars
->bim
->buffer
+ vars
->bim
->size
);
640 /* Set the section size and contents. The actual
641 contents are filled in by our parent. */
642 bfd_set_section_size (sec
, (bfd_size_type
) size
);
643 sec
->contents
= vars
->data
;
644 sec
->target_index
= vars
->sec_index
++;
646 /* Advance data pointer in the vars structure. */
649 /* Skip the padding byte if it was not needed.
650 The logic here is that if the string length is odd,
651 then the entire string length, including the null byte,
652 is even and so the extra, padding byte, is not needed. */
656 /* PR 18758: See note in pe_ILF_buid_a_bfd. We must make sure that we
657 preserve host alignment requirements. The BFD_ASSERTs in this
658 functions will warn us if we run out of room, but we should
659 already have enough padding built in to ILF_DATA_SIZE. */
660 #if GCC_VERSION >= 3000
661 alignment
= __alignof__ (struct coff_section_tdata
);
666 = (bfd_byte
*) (((intptr_t) vars
->data
+ alignment
- 1) & -alignment
);
668 /* Create a coff_section_tdata structure for our use. */
669 sec
->used_by_bfd
= (struct coff_section_tdata
*) vars
->data
;
670 vars
->data
+= sizeof (struct coff_section_tdata
);
672 BFD_ASSERT (vars
->data
<= vars
->bim
->buffer
+ vars
->bim
->size
);
674 /* Create a symbol to refer to this section. */
675 pe_ILF_make_a_symbol (vars
, "", name
, sec
, BSF_LOCAL
);
677 /* Cache the index to the symbol in the coff_section_data structure. */
678 coff_section_data (vars
->abfd
, sec
)->i
= vars
->sym_index
- 1;
683 /* This structure contains the code that goes into the .text section
684 in order to perform a jump into the DLL lookup table. The entries
685 in the table are index by the magic number used to represent the
686 machine type in the PE file. The contents of the data[] arrays in
687 these entries are stolen from the jtab[] arrays in ld/pe-dll.c.
688 The SIZE field says how many bytes in the DATA array are actually
689 used. The OFFSET field says where in the data array the address
690 of the .idata$5 section should be placed. */
691 #define MAX_TEXT_SECTION_SIZE 32
695 unsigned short magic
;
696 unsigned char data
[MAX_TEXT_SECTION_SIZE
];
702 static const jump_table jtab
[] =
706 { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 },
713 { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 },
720 { /* XXX fill me in */ },
725 #ifdef MIPS_ARCH_MAGIC_WINCE
726 { MIPS_ARCH_MAGIC_WINCE
,
727 { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d,
728 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 },
733 #ifdef SH_ARCH_MAGIC_WINCE
734 { SH_ARCH_MAGIC_WINCE
,
735 { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40,
736 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 },
742 /* We don't currently support jumping to DLLs, so if
743 someone does try emit a runtime trap. Through UDF #0. */
745 { 0x00, 0x00, 0x00, 0x00 },
753 { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0,
754 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00},
761 { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46,
762 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 },
767 #ifdef LOONGARCH64MAGIC
768 /* We don't currently support jumping to DLLs, so if
769 someone does try emit a runtime trap. Through BREAK 0. */
771 { 0x00, 0x00, 0x2a, 0x00 },
781 #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0])
784 /* Build a full BFD from the information supplied in a ILF object. */
787 pe_ILF_build_a_bfd (bfd
* abfd
,
791 unsigned int ordinal
,
796 struct internal_filehdr internal_f
;
797 unsigned int import_type
;
798 unsigned int import_name_type
;
799 asection_ptr id4
, id5
, id6
= NULL
, text
= NULL
;
800 coff_symbol_type
** imp_sym
;
801 unsigned int imp_index
;
804 /* Decode and verify the types field of the ILF structure. */
805 import_type
= types
& 0x3;
806 import_name_type
= (types
& 0x1c) >> 2;
815 /* XXX code yet to be written. */
816 /* xgettext:c-format */
817 _bfd_error_handler (_("%pB: unhandled import type; %x"),
822 /* xgettext:c-format */
823 _bfd_error_handler (_("%pB: unrecognized import type; %x"),
828 switch (import_name_type
)
832 case IMPORT_NAME_NOPREFIX
:
833 case IMPORT_NAME_UNDECORATE
:
837 /* xgettext:c-format */
838 _bfd_error_handler (_("%pB: unrecognized import name type; %x"),
839 abfd
, import_name_type
);
843 /* Initialise local variables.
845 Note these are kept in a structure rather than being
846 declared as statics since bfd frowns on global variables.
848 We are going to construct the contents of the BFD in memory,
849 so allocate all the space that we will need right now. */
851 = (struct bfd_in_memory
*) bfd_malloc ((bfd_size_type
) sizeof (*vars
.bim
));
852 if (vars
.bim
== NULL
)
855 ptr
= (bfd_byte
*) bfd_zmalloc ((bfd_size_type
) ILF_DATA_SIZE
);
856 vars
.bim
->buffer
= ptr
;
857 vars
.bim
->size
= ILF_DATA_SIZE
;
861 /* Initialise the pointers to regions of the memory and the
862 other contents of the pe_ILF_vars structure as well. */
863 vars
.sym_cache
= (coff_symbol_type
*) ptr
;
864 vars
.sym_ptr
= (coff_symbol_type
*) ptr
;
866 ptr
+= SIZEOF_ILF_SYMS
;
868 vars
.sym_table
= (unsigned int *) ptr
;
869 vars
.table_ptr
= (unsigned int *) ptr
;
870 ptr
+= SIZEOF_ILF_SYM_TABLE
;
872 vars
.native_syms
= (combined_entry_type
*) ptr
;
873 vars
.native_ptr
= (combined_entry_type
*) ptr
;
874 ptr
+= SIZEOF_ILF_NATIVE_SYMS
;
876 vars
.sym_ptr_table
= (coff_symbol_type
**) ptr
;
877 vars
.sym_ptr_ptr
= (coff_symbol_type
**) ptr
;
878 ptr
+= SIZEOF_ILF_SYM_PTR_TABLE
;
880 vars
.esym_table
= (SYMENT
*) ptr
;
881 vars
.esym_ptr
= (SYMENT
*) ptr
;
882 ptr
+= SIZEOF_ILF_EXT_SYMS
;
884 vars
.reltab
= (arelent
*) ptr
;
886 ptr
+= SIZEOF_ILF_RELOCS
;
888 vars
.int_reltab
= (struct internal_reloc
*) ptr
;
889 ptr
+= SIZEOF_ILF_INT_RELOCS
;
891 vars
.string_table
= (char *) ptr
;
892 vars
.string_ptr
= (char *) ptr
+ STRING_SIZE_SIZE
;
893 ptr
+= SIZEOF_ILF_STRINGS
;
894 vars
.end_string_ptr
= (char *) ptr
;
896 /* The remaining space in bim->buffer is used
897 by the pe_ILF_make_a_section() function. */
899 /* PR 18758: Make sure that the data area is sufficiently aligned for
900 struct coff_section_tdata. __alignof__ is a gcc extension, hence
901 the test of GCC_VERSION. For other compilers we assume 8 byte
903 #if GCC_VERSION >= 3000
904 alignment
= __alignof__ (struct coff_section_tdata
);
908 ptr
= (bfd_byte
*) (((intptr_t) ptr
+ alignment
- 1) & -alignment
);
915 /* Create the initial .idata$<n> sections:
916 [.idata$2: Import Directory Table -- not needed]
917 .idata$4: Import Lookup Table
918 .idata$5: Import Address Table
920 Note we do not create a .idata$3 section as this is
921 created for us by the linker script. */
922 id4
= pe_ILF_make_a_section (& vars
, ".idata$4", SIZEOF_IDATA4
, 0);
923 id5
= pe_ILF_make_a_section (& vars
, ".idata$5", SIZEOF_IDATA5
, 0);
924 if (id4
== NULL
|| id5
== NULL
)
927 /* Fill in the contents of these sections. */
928 if (import_name_type
== IMPORT_ORDINAL
)
931 /* See PR 20907 for a reproducer. */
934 #if defined(COFF_WITH_pex64) || defined(COFF_WITH_peAArch64) || defined(COFF_WITH_peLoongArch64)
935 ((unsigned int *) id4
->contents
)[0] = ordinal
;
936 ((unsigned int *) id4
->contents
)[1] = 0x80000000;
937 ((unsigned int *) id5
->contents
)[0] = ordinal
;
938 ((unsigned int *) id5
->contents
)[1] = 0x80000000;
940 * (unsigned int *) id4
->contents
= ordinal
| 0x80000000;
941 * (unsigned int *) id5
->contents
= ordinal
| 0x80000000;
949 /* Create .idata$6 - the Hint Name Table. */
950 id6
= pe_ILF_make_a_section (& vars
, ".idata$6", SIZEOF_IDATA6
, 0);
954 /* If necessary, trim the import symbol name. */
955 symbol
= symbol_name
;
957 /* As used by MS compiler, '_', '@', and '?' are alternative
958 forms of USER_LABEL_PREFIX, with '?' for c++ mangled names,
959 '@' used for fastcall (in C), '_' everywhere else. Only one
960 of these is used for a symbol. We strip this leading char for
961 IMPORT_NAME_NOPREFIX and IMPORT_NAME_UNDECORATE as per the
962 PE COFF 6.0 spec (section 8.3, Import Name Type). */
964 if (import_name_type
!= IMPORT_NAME
)
968 /* Check that we don't remove for targets with empty
969 USER_LABEL_PREFIX the leading underscore. */
970 if ((c
== '_' && abfd
->xvec
->symbol_leading_char
!= 0)
971 || c
== '@' || c
== '?')
975 len
= strlen (symbol
);
976 if (import_name_type
== IMPORT_NAME_UNDECORATE
)
978 /* Truncate at the first '@'. */
979 char *at
= strchr (symbol
, '@');
985 id6
->contents
[0] = ordinal
& 0xff;
986 id6
->contents
[1] = ordinal
>> 8;
988 memcpy ((char *) id6
->contents
+ 2, symbol
, len
);
989 id6
->contents
[len
+ 2] = '\0';
992 if (import_name_type
!= IMPORT_ORDINAL
)
994 pe_ILF_make_a_reloc (&vars
, (bfd_vma
) 0, BFD_RELOC_RVA
, id6
);
995 pe_ILF_save_relocs (&vars
, id4
);
997 pe_ILF_make_a_reloc (&vars
, (bfd_vma
) 0, BFD_RELOC_RVA
, id6
);
998 pe_ILF_save_relocs (&vars
, id5
);
1001 /* Create an import symbol. */
1002 pe_ILF_make_a_symbol (& vars
, "__imp_", symbol_name
, id5
, 0);
1003 imp_sym
= vars
.sym_ptr_ptr
- 1;
1004 imp_index
= vars
.sym_index
- 1;
1006 /* Create extra sections depending upon the type of import we are dealing with. */
1007 switch (import_type
)
1012 /* CODE functions are special, in that they get a trampoline that
1013 jumps to the main import symbol. Create a .text section to hold it.
1014 First we need to look up its contents in the jump table. */
1015 for (i
= NUM_ENTRIES (jtab
); i
--;)
1017 if (jtab
[i
].size
== 0)
1019 if (jtab
[i
].magic
== magic
)
1022 /* If we did not find a matching entry something is wrong. */
1026 /* Create the .text section. */
1027 text
= pe_ILF_make_a_section (& vars
, ".text", jtab
[i
].size
, SEC_CODE
);
1031 /* Copy in the jump code. */
1032 memcpy (text
->contents
, jtab
[i
].data
, jtab
[i
].size
);
1034 /* Create a reloc for the data in the text section. */
1035 #ifdef MIPS_ARCH_MAGIC_WINCE
1036 if (magic
== MIPS_ARCH_MAGIC_WINCE
)
1038 pe_ILF_make_a_symbol_reloc (&vars
, (bfd_vma
) 0, BFD_RELOC_HI16_S
,
1039 (struct bfd_symbol
**) imp_sym
,
1041 pe_ILF_make_a_reloc (&vars
, (bfd_vma
) 0, BFD_RELOC_LO16
, text
);
1042 pe_ILF_make_a_symbol_reloc (&vars
, (bfd_vma
) 4, BFD_RELOC_LO16
,
1043 (struct bfd_symbol
**) imp_sym
,
1049 if (magic
== AMD64MAGIC
)
1051 pe_ILF_make_a_symbol_reloc (&vars
, (bfd_vma
) jtab
[i
].offset
,
1052 BFD_RELOC_32_PCREL
, (asymbol
**) imp_sym
,
1057 pe_ILF_make_a_symbol_reloc (&vars
, (bfd_vma
) jtab
[i
].offset
,
1058 BFD_RELOC_32
, (asymbol
**) imp_sym
,
1061 pe_ILF_save_relocs (& vars
, text
);
1068 /* XXX code not yet written. */
1072 /* Initialise the bfd. */
1073 memset (& internal_f
, 0, sizeof (internal_f
));
1075 internal_f
.f_magic
= magic
;
1076 internal_f
.f_symptr
= 0;
1077 internal_f
.f_nsyms
= 0;
1078 internal_f
.f_flags
= F_AR32WR
| F_LNNO
; /* XXX is this correct ? */
1080 if ( ! bfd_set_start_address (abfd
, (bfd_vma
) 0)
1081 || ! bfd_coff_set_arch_mach_hook (abfd
, & internal_f
))
1084 if (bfd_coff_mkobject_hook (abfd
, (void *) & internal_f
, NULL
) == NULL
)
1087 coff_data (abfd
)->pe
= 1;
1089 if (vars
.magic
== THUMBPEMAGIC
)
1090 /* Stop some linker warnings about thumb code not supporting interworking. */
1091 coff_data (abfd
)->flags
|= F_INTERWORK
| F_INTERWORK_SET
;
1094 /* Switch from file contents to memory contents. */
1095 bfd_cache_close (abfd
);
1097 abfd
->iostream
= (void *) vars
.bim
;
1098 abfd
->flags
|= BFD_IN_MEMORY
/* | HAS_LOCALS */;
1099 abfd
->iovec
= &_bfd_memory_iovec
;
1102 obj_sym_filepos (abfd
) = 0;
1104 /* Now create a symbol describing the imported value. */
1105 switch (import_type
)
1108 pe_ILF_make_a_symbol (& vars
, "", symbol_name
, text
,
1109 BSF_NOT_AT_END
| BSF_FUNCTION
);
1114 /* Nothing to do here. */
1118 /* XXX code not yet written. */
1122 /* Create an import symbol for the DLL, without the .dll suffix. */
1123 ptr
= (bfd_byte
*) strrchr (source_dll
, '.');
1126 pe_ILF_make_a_symbol (& vars
, "__IMPORT_DESCRIPTOR_", source_dll
, NULL
, 0);
1130 /* Point the bfd at the symbol table. */
1131 obj_symbols (abfd
) = vars
.sym_cache
;
1132 abfd
->symcount
= vars
.sym_index
;
1134 obj_raw_syments (abfd
) = vars
.native_syms
;
1135 obj_raw_syment_count (abfd
) = vars
.sym_index
;
1137 obj_coff_external_syms (abfd
) = (void *) vars
.esym_table
;
1138 obj_coff_keep_syms (abfd
) = true;
1140 obj_convert (abfd
) = vars
.sym_table
;
1141 obj_conv_table_size (abfd
) = vars
.sym_index
;
1143 obj_coff_strings (abfd
) = vars
.string_table
;
1144 obj_coff_keep_strings (abfd
) = true;
1146 abfd
->flags
|= HAS_SYMS
;
1151 free (vars
.bim
->buffer
);
1156 /* We have detected a Image Library Format archive element.
1157 Decode the element and return the appropriate target. */
1160 pe_ILF_object_p (bfd
* abfd
)
1162 bfd_byte buffer
[14];
1166 unsigned int machine
;
1168 unsigned int ordinal
;
1172 /* Upon entry the first six bytes of the ILF header have
1173 already been read. Now read the rest of the header. */
1174 if (bfd_bread (buffer
, (bfd_size_type
) 14, abfd
) != 14)
1179 machine
= H_GET_16 (abfd
, ptr
);
1182 /* Check that the machine type is recognised. */
1187 case IMAGE_FILE_MACHINE_UNKNOWN
:
1188 case IMAGE_FILE_MACHINE_ALPHA
:
1189 case IMAGE_FILE_MACHINE_ALPHA64
:
1190 case IMAGE_FILE_MACHINE_IA64
:
1193 case IMAGE_FILE_MACHINE_I386
:
1199 case IMAGE_FILE_MACHINE_AMD64
:
1205 case IMAGE_FILE_MACHINE_R3000
:
1206 case IMAGE_FILE_MACHINE_R4000
:
1207 case IMAGE_FILE_MACHINE_R10000
:
1209 case IMAGE_FILE_MACHINE_MIPS16
:
1210 case IMAGE_FILE_MACHINE_MIPSFPU
:
1211 case IMAGE_FILE_MACHINE_MIPSFPU16
:
1212 #ifdef MIPS_ARCH_MAGIC_WINCE
1213 magic
= MIPS_ARCH_MAGIC_WINCE
;
1217 case IMAGE_FILE_MACHINE_SH3
:
1218 case IMAGE_FILE_MACHINE_SH4
:
1219 #ifdef SH_ARCH_MAGIC_WINCE
1220 magic
= SH_ARCH_MAGIC_WINCE
;
1224 case IMAGE_FILE_MACHINE_ARM
:
1230 case IMAGE_FILE_MACHINE_ARM64
:
1232 magic
= AARCH64MAGIC
;
1236 case IMAGE_FILE_MACHINE_LOONGARCH64
:
1237 #ifdef LOONGARCH64MAGIC
1238 magic
= LOONGARCH64MAGIC
;
1242 case IMAGE_FILE_MACHINE_THUMB
:
1245 extern const bfd_target TARGET_LITTLE_SYM
;
1247 if (abfd
->xvec
== & TARGET_LITTLE_SYM
)
1248 magic
= THUMBPEMAGIC
;
1253 case IMAGE_FILE_MACHINE_POWERPC
:
1254 /* We no longer support PowerPC. */
1257 /* xgettext:c-format */
1258 (_("%pB: unrecognised machine type (0x%x)"
1259 " in Import Library Format archive"),
1261 bfd_set_error (bfd_error_malformed_archive
);
1270 /* xgettext:c-format */
1271 (_("%pB: recognised but unhandled machine type (0x%x)"
1272 " in Import Library Format archive"),
1274 bfd_set_error (bfd_error_wrong_format
);
1279 /* We do not bother to check the date.
1280 date = H_GET_32 (abfd, ptr); */
1283 size
= H_GET_32 (abfd
, ptr
);
1289 (_("%pB: size field is zero in Import Library Format header"), abfd
);
1290 bfd_set_error (bfd_error_malformed_archive
);
1295 ordinal
= H_GET_16 (abfd
, ptr
);
1298 types
= H_GET_16 (abfd
, ptr
);
1301 /* Now read in the two strings that follow. */
1302 ptr
= (bfd_byte
*) _bfd_alloc_and_read (abfd
, size
, size
);
1306 symbol_name
= (char *) ptr
;
1307 /* See PR 20905 for an example of where the strnlen is necessary. */
1308 source_dll
= symbol_name
+ strnlen (symbol_name
, size
- 1) + 1;
1310 /* Verify that the strings are null terminated. */
1311 if (ptr
[size
- 1] != 0
1312 || (bfd_size_type
) ((bfd_byte
*) source_dll
- ptr
) >= size
)
1315 (_("%pB: string not null terminated in ILF object file"), abfd
);
1316 bfd_set_error (bfd_error_malformed_archive
);
1317 bfd_release (abfd
, ptr
);
1321 /* Now construct the bfd. */
1322 if (! pe_ILF_build_a_bfd (abfd
, magic
, symbol_name
,
1323 source_dll
, ordinal
, types
))
1325 bfd_release (abfd
, ptr
);
1329 return _bfd_no_cleanup
;
1333 pe_bfd_read_buildid (bfd
*abfd
)
1335 pe_data_type
*pe
= pe_data (abfd
);
1336 struct internal_extra_pe_aouthdr
*extra
= &pe
->pe_opthdr
;
1339 bfd_size_type dataoff
;
1341 bfd_vma addr
= extra
->DataDirectory
[PE_DEBUG_DATA
].VirtualAddress
;
1342 bfd_size_type size
= extra
->DataDirectory
[PE_DEBUG_DATA
].Size
;
1347 addr
+= extra
->ImageBase
;
1349 /* Search for the section containing the DebugDirectory. */
1350 for (section
= abfd
->sections
; section
!= NULL
; section
= section
->next
)
1352 if ((addr
>= section
->vma
) && (addr
< (section
->vma
+ section
->size
)))
1356 if (section
== NULL
)
1359 if (!(section
->flags
& SEC_HAS_CONTENTS
))
1362 dataoff
= addr
- section
->vma
;
1364 /* PR 20605 and 22373: Make sure that the data is really there.
1365 Note - since we are dealing with unsigned quantities we have
1366 to be careful to check for potential overflows. */
1367 if (dataoff
>= section
->size
1368 || size
> section
->size
- dataoff
)
1371 (_("%pB: error: debug data ends beyond end of debug directory"),
1376 /* Read the whole section. */
1377 if (!bfd_malloc_and_get_section (abfd
, section
, &data
))
1383 /* Search for a CodeView entry in the DebugDirectory */
1384 for (i
= 0; i
< size
/ sizeof (struct external_IMAGE_DEBUG_DIRECTORY
); i
++)
1386 struct external_IMAGE_DEBUG_DIRECTORY
*ext
1387 = &((struct external_IMAGE_DEBUG_DIRECTORY
*)(data
+ dataoff
))[i
];
1388 struct internal_IMAGE_DEBUG_DIRECTORY idd
;
1390 _bfd_XXi_swap_debugdir_in (abfd
, ext
, &idd
);
1392 if (idd
.Type
== PE_IMAGE_DEBUG_TYPE_CODEVIEW
)
1394 char buffer
[256 + 1];
1395 CODEVIEW_INFO
*cvinfo
= (CODEVIEW_INFO
*) buffer
;
1398 The debug entry doesn't have to have to be in a section, in which
1399 case AddressOfRawData is 0, so always use PointerToRawData.
1401 if (_bfd_XXi_slurp_codeview_record (abfd
,
1402 (file_ptr
) idd
.PointerToRawData
,
1403 idd
.SizeOfData
, cvinfo
))
1405 struct bfd_build_id
* build_id
= bfd_alloc (abfd
,
1406 sizeof (struct bfd_build_id
) + cvinfo
->SignatureLength
);
1409 build_id
->size
= cvinfo
->SignatureLength
;
1410 memcpy(build_id
->data
, cvinfo
->Signature
,
1411 cvinfo
->SignatureLength
);
1412 abfd
->build_id
= build_id
;
1423 pe_bfd_object_p (bfd
* abfd
)
1426 struct external_DOS_hdr dos_hdr
;
1427 struct external_PEI_IMAGE_hdr image_hdr
;
1428 struct internal_filehdr internal_f
;
1429 struct internal_aouthdr internal_a
;
1430 bfd_size_type opt_hdr_size
;
1434 /* Detect if this a Microsoft Import Library Format element. */
1435 /* First read the beginning of the header. */
1436 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0
1437 || bfd_bread (buffer
, (bfd_size_type
) 6, abfd
) != 6)
1439 if (bfd_get_error () != bfd_error_system_call
)
1440 bfd_set_error (bfd_error_wrong_format
);
1444 /* Then check the magic and the version (only 0 is supported). */
1445 if (H_GET_32 (abfd
, buffer
) == 0xffff0000
1446 && H_GET_16 (abfd
, buffer
+ 4) == 0)
1447 return pe_ILF_object_p (abfd
);
1449 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0
1450 || bfd_bread (&dos_hdr
, (bfd_size_type
) sizeof (dos_hdr
), abfd
)
1451 != sizeof (dos_hdr
))
1453 if (bfd_get_error () != bfd_error_system_call
)
1454 bfd_set_error (bfd_error_wrong_format
);
1458 /* There are really two magic numbers involved; the magic number
1459 that says this is a NT executable (PEI) and the magic number that
1460 determines the architecture. The former is IMAGE_DOS_SIGNATURE, stored in
1461 the e_magic field. The latter is stored in the f_magic field.
1462 If the NT magic number isn't valid, the architecture magic number
1463 could be mimicked by some other field (specifically, the number
1464 of relocs in section 3). Since this routine can only be called
1465 correctly for a PEI file, check the e_magic number here, and, if
1466 it doesn't match, clobber the f_magic number so that we don't get
1468 if (H_GET_16 (abfd
, dos_hdr
.e_magic
) != IMAGE_DOS_SIGNATURE
)
1470 bfd_set_error (bfd_error_wrong_format
);
1474 offset
= H_GET_32 (abfd
, dos_hdr
.e_lfanew
);
1475 if (bfd_seek (abfd
, offset
, SEEK_SET
) != 0
1476 || (bfd_bread (&image_hdr
, (bfd_size_type
) sizeof (image_hdr
), abfd
)
1477 != sizeof (image_hdr
)))
1479 if (bfd_get_error () != bfd_error_system_call
)
1480 bfd_set_error (bfd_error_wrong_format
);
1484 if (H_GET_32 (abfd
, image_hdr
.nt_signature
) != 0x4550)
1486 bfd_set_error (bfd_error_wrong_format
);
1490 /* Swap file header, so that we get the location for calling
1492 bfd_coff_swap_filehdr_in (abfd
, &image_hdr
, &internal_f
);
1494 if (! bfd_coff_bad_format_hook (abfd
, &internal_f
)
1495 || internal_f
.f_opthdr
> bfd_coff_aoutsz (abfd
))
1497 bfd_set_error (bfd_error_wrong_format
);
1501 memcpy (internal_f
.pe
.dos_message
, dos_hdr
.dos_message
,
1502 sizeof (internal_f
.pe
.dos_message
));
1504 /* Read the optional header, which has variable size. */
1505 opt_hdr_size
= internal_f
.f_opthdr
;
1507 if (opt_hdr_size
!= 0)
1509 bfd_size_type amt
= opt_hdr_size
;
1512 /* PR 17521 file: 230-131433-0.004. */
1513 if (amt
< sizeof (PEAOUTHDR
))
1514 amt
= sizeof (PEAOUTHDR
);
1516 opthdr
= _bfd_alloc_and_read (abfd
, amt
, opt_hdr_size
);
1519 if (amt
> opt_hdr_size
)
1520 memset (opthdr
+ opt_hdr_size
, 0, amt
- opt_hdr_size
);
1522 bfd_coff_swap_aouthdr_in (abfd
, opthdr
, &internal_a
);
1524 struct internal_extra_pe_aouthdr
*a
= &internal_a
.pe
;
1525 if ((a
->SectionAlignment
& -a
->SectionAlignment
) != a
->SectionAlignment
1526 || a
->SectionAlignment
>= 0x80000000)
1528 const char **warn
= _bfd_per_xvec_warn (abfd
->xvec
);
1529 *warn
= _("%pB: adjusting invalid SectionAlignment");
1530 a
->SectionAlignment
&= -a
->SectionAlignment
;
1531 if (a
->SectionAlignment
>= 0x80000000)
1532 a
->SectionAlignment
= 0x40000000;
1535 if ((a
->FileAlignment
& -a
->FileAlignment
) != a
->FileAlignment
1536 || a
->FileAlignment
> a
->SectionAlignment
)
1538 const char **warn
= _bfd_per_xvec_warn (abfd
->xvec
);
1539 *warn
= _("%pB: adjusting invalid FileAlignment");
1540 a
->FileAlignment
&= -a
->FileAlignment
;
1541 if (a
->FileAlignment
> a
->SectionAlignment
)
1542 a
->FileAlignment
= a
->SectionAlignment
;
1545 if (a
->NumberOfRvaAndSizes
> IMAGE_NUMBEROF_DIRECTORY_ENTRIES
)
1547 const char **warn
= _bfd_per_xvec_warn (abfd
->xvec
);
1548 *warn
= _("%pB: invalid NumberOfRvaAndSizes");
1552 result
= coff_real_object_p (abfd
, internal_f
.f_nscns
, &internal_f
,
1555 : (struct internal_aouthdr
*) NULL
));
1559 /* Now the whole header has been processed, see if there is a build-id */
1560 pe_bfd_read_buildid(abfd
);
1566 #define coff_object_p pe_bfd_object_p
1567 #endif /* COFF_IMAGE_WITH_PE */