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277d1b5e | 1 | /* Support for the generic parts of PE/PEI, for BFD. |
a2c58332 | 2 | Copyright (C) 1995-2022 Free Software Foundation, Inc. |
277d1b5e | 3 | Written by Cygnus Solutions. |
252b5132 | 4 | |
ff0c9faf | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
ff0c9faf NC |
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 | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
ff0c9faf | 10 | (at your option) any later version. |
252b5132 | 11 | |
ff0c9faf NC |
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. | |
252b5132 | 16 | |
ff0c9faf NC |
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 | |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
21 | ||
252b5132 | 22 | |
ff0c9faf | 23 | /* Most of this hacked by Steve Chamberlain, |
252b5132 | 24 | sac@cygnus.com |
277d1b5e | 25 | |
ff0c9faf | 26 | PE/PEI rearrangement (and code added): Donn Terry |
07d6d2b8 | 27 | Softway Systems, Inc. */ |
252b5132 RH |
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 | |
ff0c9faf | 55 | wasting too much time. */ |
252b5132 | 56 | |
277d1b5e ILT |
57 | #include "libpei.h" |
58 | ||
0a1b45a2 | 59 | static bool (*pe_saved_coff_bfd_print_private_bfd_data) (bfd *, void *) = |
277d1b5e ILT |
60 | #ifndef coff_bfd_print_private_bfd_data |
61 | NULL; | |
252b5132 | 62 | #else |
277d1b5e ILT |
63 | coff_bfd_print_private_bfd_data; |
64 | #undef coff_bfd_print_private_bfd_data | |
252b5132 RH |
65 | #endif |
66 | ||
0a1b45a2 | 67 | static bool pe_print_private_bfd_data (bfd *, void *); |
277d1b5e | 68 | #define coff_bfd_print_private_bfd_data pe_print_private_bfd_data |
252b5132 | 69 | |
0a1b45a2 | 70 | static bool (*pe_saved_coff_bfd_copy_private_bfd_data) (bfd *, bfd *) = |
277d1b5e ILT |
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 | |
252b5132 RH |
76 | #endif |
77 | ||
0a1b45a2 | 78 | static bool pe_bfd_copy_private_bfd_data (bfd *, bfd *); |
277d1b5e | 79 | #define coff_bfd_copy_private_bfd_data pe_bfd_copy_private_bfd_data |
252b5132 | 80 | |
07d6d2b8 | 81 | #define coff_mkobject pe_mkobject |
277d1b5e | 82 | #define coff_mkobject_hook pe_mkobject_hook |
252b5132 | 83 | |
17505c5c NC |
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; | |
07d6d2b8 | 93 | unsigned short magic; |
ee91ed79 | 94 | |
17505c5c | 95 | arelent * reltab; |
07d6d2b8 | 96 | unsigned int relcount; |
17505c5c | 97 | |
07d6d2b8 AM |
98 | coff_symbol_type * sym_cache; |
99 | coff_symbol_type * sym_ptr; | |
100 | unsigned int sym_index; | |
ee91ed79 | 101 | |
07d6d2b8 AM |
102 | unsigned int * sym_table; |
103 | unsigned int * table_ptr; | |
ee91ed79 | 104 | |
17505c5c NC |
105 | combined_entry_type * native_syms; |
106 | combined_entry_type * native_ptr; | |
107 | ||
11c8a8d1 NC |
108 | coff_symbol_type ** sym_ptr_table; |
109 | coff_symbol_type ** sym_ptr_ptr; | |
ee91ed79 | 110 | |
17505c5c NC |
111 | unsigned int sec_index; |
112 | ||
07d6d2b8 AM |
113 | char * string_table; |
114 | char * string_ptr; | |
17505c5c | 115 | char * end_string_ptr; |
ee91ed79 | 116 | |
07d6d2b8 AM |
117 | SYMENT * esym_table; |
118 | SYMENT * esym_ptr; | |
17505c5c NC |
119 | |
120 | struct internal_reloc * int_reltab; | |
121 | } | |
122 | pe_ILF_vars; | |
17505c5c | 123 | #endif /* COFF_IMAGE_WITH_PE */ |
ce63b7b3 | 124 | |
cb001c0d | 125 | bfd_cleanup coff_real_object_p |
ce63b7b3 | 126 | (bfd *, unsigned, struct internal_filehdr *, struct internal_aouthdr *); |
7920ce38 | 127 | \f |
17505c5c | 128 | #ifndef NO_COFF_RELOCS |
252b5132 | 129 | static void |
7920ce38 | 130 | coff_swap_reloc_in (bfd * abfd, void * src, void * dst) |
252b5132 RH |
131 | { |
132 | RELOC *reloc_src = (RELOC *) src; | |
133 | struct internal_reloc *reloc_dst = (struct internal_reloc *) dst; | |
134 | ||
7920ce38 | 135 | reloc_dst->r_vaddr = H_GET_32 (abfd, reloc_src->r_vaddr); |
dc810e39 | 136 | reloc_dst->r_symndx = H_GET_S32 (abfd, reloc_src->r_symndx); |
7920ce38 | 137 | reloc_dst->r_type = H_GET_16 (abfd, reloc_src->r_type); |
252b5132 | 138 | #ifdef SWAP_IN_RELOC_OFFSET |
dc810e39 | 139 | reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET (abfd, reloc_src->r_offset); |
252b5132 RH |
140 | #endif |
141 | } | |
142 | ||
252b5132 | 143 | static unsigned int |
7920ce38 | 144 | coff_swap_reloc_out (bfd * abfd, void * src, void * dst) |
252b5132 | 145 | { |
7920ce38 NC |
146 | struct internal_reloc *reloc_src = (struct internal_reloc *) src; |
147 | struct external_reloc *reloc_dst = (struct external_reloc *) dst; | |
148 | ||
dc810e39 AM |
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); | |
dc810e39 | 151 | H_PUT_16 (abfd, reloc_src->r_type, reloc_dst->r_type); |
252b5132 | 152 | |
68ffbac6 | 153 | #ifdef SWAP_OUT_RELOC_OFFSET |
dc810e39 | 154 | SWAP_OUT_RELOC_OFFSET (abfd, reloc_src->r_offset, reloc_dst->r_offset); |
252b5132 RH |
155 | #endif |
156 | #ifdef SWAP_OUT_RELOC_EXTRA | |
7920ce38 | 157 | SWAP_OUT_RELOC_EXTRA (abfd, reloc_src, reloc_dst); |
252b5132 RH |
158 | #endif |
159 | return RELSZ; | |
160 | } | |
17505c5c | 161 | #endif /* not NO_COFF_RELOCS */ |
252b5132 | 162 | |
ce63b7b3 KT |
163 | #ifdef COFF_IMAGE_WITH_PE |
164 | #undef FILHDR | |
165 | #define FILHDR struct external_PEI_IMAGE_hdr | |
166 | #endif | |
167 | ||
252b5132 | 168 | static void |
7920ce38 | 169 | coff_swap_filehdr_in (bfd * abfd, void * src, void * dst) |
252b5132 RH |
170 | { |
171 | FILHDR *filehdr_src = (FILHDR *) src; | |
172 | struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst; | |
252b5132 | 173 | |
7920ce38 NC |
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); | |
dc810e39 | 179 | filehdr_dst->f_symptr = H_GET_32 (abfd, filehdr_src->f_symptr); |
252b5132 RH |
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 | ||
dc810e39 | 189 | filehdr_dst->f_opthdr = H_GET_16 (abfd, filehdr_src-> f_opthdr); |
252b5132 RH |
190 | } |
191 | ||
192 | #ifdef COFF_IMAGE_WITH_PE | |
cbff5e0d | 193 | # define coff_swap_filehdr_out _bfd_XXi_only_swap_filehdr_out |
c60b3806 JT |
194 | #elif defined COFF_WITH_peAArch64 |
195 | # define coff_swap_filehdr_out _bfd_XX_only_swap_filehdr_out | |
99ad8390 NC |
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 | |
252b5132 | 200 | #else |
cbff5e0d | 201 | # define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out |
252b5132 | 202 | #endif |
252b5132 | 203 | |
252b5132 | 204 | static void |
7920ce38 | 205 | coff_swap_scnhdr_in (bfd * abfd, void * ext, void * in) |
252b5132 RH |
206 | { |
207 | SCNHDR *scnhdr_ext = (SCNHDR *) ext; | |
208 | struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in; | |
209 | ||
7920ce38 NC |
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); | |
dc810e39 | 217 | scnhdr_int->s_lnnoptr = GET_SCNHDR_LNNOPTR (abfd, scnhdr_ext->s_lnnoptr); |
7920ce38 | 218 | scnhdr_int->s_flags = H_GET_32 (abfd, scnhdr_ext->s_flags); |
252b5132 | 219 | |
cb43721d ILT |
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 | |
dc810e39 AM |
224 | scnhdr_int->s_nlnno = (H_GET_16 (abfd, scnhdr_ext->s_nlnno) |
225 | + (H_GET_16 (abfd, scnhdr_ext->s_nreloc) << 16)); | |
cb43721d ILT |
226 | scnhdr_int->s_nreloc = 0; |
227 | #else | |
dc810e39 AM |
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); | |
cb43721d | 230 | #endif |
252b5132 | 231 | |
ee91ed79 | 232 | if (scnhdr_int->s_vaddr != 0) |
252b5132 RH |
233 | { |
234 | scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase; | |
99ad8390 | 235 | /* Do not cut upper 32-bits for 64-bit vma. */ |
31f60095 | 236 | #if !defined(COFF_WITH_pex64) && !defined(COFF_WITH_peAArch64) && !defined(COFF_WITH_peLoongArch64) |
252b5132 | 237 | scnhdr_int->s_vaddr &= 0xffffffff; |
99ad8390 | 238 | #endif |
252b5132 | 239 | } |
e166a60f | 240 | |
17505c5c | 241 | #ifndef COFF_NO_HACK_SCNHDR_SIZE |
a3476bef NC |
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, | |
c9ac8978 NC |
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. */ | |
a3476bef NC |
246 | if (scnhdr_int->s_paddr > 0 |
247 | && (((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0 | |
92dd4511 | 248 | && (! bfd_pei_p (abfd) || scnhdr_int->s_size == 0)) |
07d6d2b8 | 249 | || (bfd_pei_p (abfd) && (scnhdr_int->s_size > scnhdr_int->s_paddr)))) |
7920ce38 NC |
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; | |
17505c5c | 255 | #endif |
252b5132 RH |
256 | } |
257 | ||
0a1b45a2 | 258 | static bool |
7920ce38 | 259 | pe_mkobject (bfd * abfd) |
252b5132 RH |
260 | { |
261 | pe_data_type *pe; | |
986f0783 | 262 | size_t amt = sizeof (pe_data_type); |
dc810e39 AM |
263 | |
264 | abfd->tdata.pe_obj_data = (struct pe_tdata *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
265 | |
266 | if (abfd->tdata.pe_obj_data == 0) | |
0a1b45a2 | 267 | return false; |
252b5132 RH |
268 | |
269 | pe = pe_data (abfd); | |
270 | ||
271 | pe->coff.pe = 1; | |
277d1b5e ILT |
272 | |
273 | /* in_reloc_p is architecture dependent. */ | |
252b5132 | 274 | pe->in_reloc_p = in_reloc_p; |
cbff5e0d | 275 | |
70cf6834 AE |
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 | ||
36e9d67b | 294 | memset (& pe->pe_opthdr, 0, sizeof pe->pe_opthdr); |
0a1b45a2 | 295 | return true; |
252b5132 RH |
296 | } |
297 | ||
298 | /* Create the COFF backend specific information. */ | |
7920ce38 NC |
299 | |
300 | static void * | |
301 | pe_mkobject_hook (bfd * abfd, | |
302 | void * filehdr, | |
303 | void * aouthdr ATTRIBUTE_UNUSED) | |
252b5132 RH |
304 | { |
305 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
306 | pe_data_type *pe; | |
307 | ||
82e51918 | 308 | if (! pe_mkobject (abfd)) |
252b5132 RH |
309 | return NULL; |
310 | ||
311 | pe = pe_data (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; | |
323 | ||
1135238b ILT |
324 | pe->coff.timestamp = internal_f->f_timdat; |
325 | ||
252b5132 RH |
326 | obj_raw_syment_count (abfd) = |
327 | obj_conv_table_size (abfd) = | |
328 | internal_f->f_nsyms; | |
329 | ||
330 | pe->real_flags = internal_f->f_flags; | |
331 | ||
332 | if ((internal_f->f_flags & F_DLL) != 0) | |
333 | pe->dll = 1; | |
334 | ||
4cfec37b ILT |
335 | if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) |
336 | abfd->flags |= HAS_DEBUG; | |
337 | ||
252b5132 | 338 | #ifdef COFF_IMAGE_WITH_PE |
ee91ed79 | 339 | if (aouthdr) |
7920ce38 | 340 | pe->pe_opthdr = ((struct internal_aouthdr *) aouthdr)->pe; |
252b5132 RH |
341 | #endif |
342 | ||
ee91ed79 | 343 | #ifdef ARM |
252b5132 RH |
344 | if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) |
345 | coff_data (abfd) ->flags = 0; | |
346 | #endif | |
ee91ed79 | 347 | |
70cf6834 AE |
348 | memcpy (pe->dos_message, internal_f->pe.dos_message, |
349 | sizeof (pe->dos_message)); | |
350 | ||
7920ce38 | 351 | return (void *) pe; |
252b5132 RH |
352 | } |
353 | ||
0a1b45a2 | 354 | static bool |
7920ce38 | 355 | pe_print_private_bfd_data (bfd *abfd, void * vfile) |
277d1b5e ILT |
356 | { |
357 | FILE *file = (FILE *) vfile; | |
358 | ||
cbff5e0d | 359 | if (!_bfd_XX_print_private_bfd_data_common (abfd, vfile)) |
0a1b45a2 | 360 | return false; |
252b5132 | 361 | |
7920ce38 | 362 | if (pe_saved_coff_bfd_print_private_bfd_data == NULL) |
0a1b45a2 | 363 | return true; |
277d1b5e | 364 | |
7920ce38 | 365 | fputc ('\n', file); |
277d1b5e | 366 | |
7920ce38 | 367 | return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile); |
277d1b5e | 368 | } |
252b5132 RH |
369 | |
370 | /* Copy any private info we understand from the input bfd | |
371 | to the output bfd. */ | |
372 | ||
0a1b45a2 | 373 | static bool |
7920ce38 | 374 | pe_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
252b5132 | 375 | { |
5c9c6a54 NC |
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() | |
378 | structure ? */ | |
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; | |
68ffbac6 | 383 | |
cbff5e0d | 384 | if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd, obfd)) |
0a1b45a2 | 385 | return false; |
252b5132 RH |
386 | |
387 | if (pe_saved_coff_bfd_copy_private_bfd_data) | |
388 | return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd); | |
252b5132 | 389 | |
0a1b45a2 | 390 | return true; |
252b5132 RH |
391 | } |
392 | ||
277d1b5e | 393 | #define coff_bfd_copy_private_section_data \ |
cbff5e0d | 394 | _bfd_XX_bfd_copy_private_section_data |
7d2b58d6 | 395 | |
cbff5e0d | 396 | #define coff_get_symbol_info _bfd_XX_get_symbol_info |
cb665cd3 | 397 | |
b1f10154 | 398 | #ifdef COFF_IMAGE_WITH_PE |
17505c5c NC |
399 | \f |
400 | /* Code to handle Microsoft's Image Library Format. | |
401 | Also known as LINK6 format. | |
ee91ed79 | 402 | Documentation about this format can be found at: |
17505c5c NC |
403 | |
404 | http://msdn.microsoft.com/library/specs/pecoff_section8.htm */ | |
405 | ||
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 | |
411 | contents. | |
412 | ||
413 | The value for SIZEOF_ILF_STRINGS is computed as follows: | |
414 | ||
415 | There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters | |
11c8a8d1 | 416 | per symbol for their names (longest section name is .idata$x). |
17505c5c NC |
417 | |
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 | |
11c8a8d1 | 420 | is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll). |
17505c5c NC |
421 | |
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 | |
424 | work. */ | |
425 | #define NUM_ILF_RELOCS 8 | |
07d6d2b8 AM |
426 | #define NUM_ILF_SECTIONS 6 |
427 | #define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS) | |
ee91ed79 | 428 | |
7920ce38 NC |
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)) | |
11c8a8d1 | 432 | #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table)) |
7920ce38 NC |
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 \ | |
11c8a8d1 NC |
437 | + 21 + strlen (source_dll) \ |
438 | + NUM_ILF_SECTIONS * 9 \ | |
439 | + STRING_SIZE_SIZE) | |
17505c5c | 440 | #define SIZEOF_IDATA2 (5 * 4) |
99ad8390 NC |
441 | |
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) | |
446 | #else | |
17505c5c NC |
447 | #define SIZEOF_IDATA4 (1 * 4) |
448 | #define SIZEOF_IDATA5 (1 * 4) | |
99ad8390 NC |
449 | #endif |
450 | ||
17505c5c NC |
451 | #define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1) |
452 | #define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1) | |
07d6d2b8 | 453 | #define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata)) |
ee91ed79 | 454 | |
17505c5c | 455 | #define ILF_DATA_SIZE \ |
17505c5c NC |
456 | + SIZEOF_ILF_SYMS \ |
457 | + SIZEOF_ILF_SYM_TABLE \ | |
458 | + SIZEOF_ILF_NATIVE_SYMS \ | |
11c8a8d1 | 459 | + SIZEOF_ILF_SYM_PTR_TABLE \ |
17505c5c NC |
460 | + SIZEOF_ILF_EXT_SYMS \ |
461 | + SIZEOF_ILF_RELOCS \ | |
462 | + SIZEOF_ILF_INT_RELOCS \ | |
463 | + SIZEOF_ILF_STRINGS \ | |
464 | + SIZEOF_IDATA2 \ | |
465 | + SIZEOF_IDATA4 \ | |
466 | + SIZEOF_IDATA5 \ | |
467 | + SIZEOF_IDATA6 \ | |
468 | + SIZEOF_IDATA7 \ | |
469 | + SIZEOF_ILF_SECTIONS \ | |
470 | + MAX_TEXT_SECTION_SIZE | |
471 | ||
17505c5c | 472 | /* Create an empty relocation against the given symbol. */ |
7920ce38 | 473 | |
17505c5c | 474 | static void |
07d6d2b8 AM |
475 | pe_ILF_make_a_symbol_reloc (pe_ILF_vars * vars, |
476 | bfd_vma address, | |
477 | bfd_reloc_code_real_type reloc, | |
478 | struct bfd_symbol ** sym, | |
479 | unsigned int sym_index) | |
17505c5c NC |
480 | { |
481 | arelent * entry; | |
482 | struct internal_reloc * internal; | |
483 | ||
484 | entry = vars->reltab + vars->relcount; | |
485 | internal = vars->int_reltab + vars->relcount; | |
ee91ed79 | 486 | |
17505c5c NC |
487 | entry->address = address; |
488 | entry->addend = 0; | |
489 | entry->howto = bfd_reloc_type_lookup (vars->abfd, reloc); | |
11c8a8d1 | 490 | entry->sym_ptr_ptr = sym; |
17505c5c NC |
491 | |
492 | internal->r_vaddr = address; | |
11c8a8d1 | 493 | internal->r_symndx = sym_index; |
8b14b0cb | 494 | internal->r_type = entry->howto ? entry->howto->type : 0; |
ee91ed79 | 495 | |
17505c5c | 496 | vars->relcount ++; |
ee91ed79 | 497 | |
17505c5c NC |
498 | BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS); |
499 | } | |
500 | ||
11c8a8d1 | 501 | /* Create an empty relocation against the given section. */ |
7920ce38 | 502 | |
11c8a8d1 | 503 | static void |
07d6d2b8 AM |
504 | pe_ILF_make_a_reloc (pe_ILF_vars * vars, |
505 | bfd_vma address, | |
11c8a8d1 | 506 | bfd_reloc_code_real_type reloc, |
07d6d2b8 | 507 | asection_ptr sec) |
11c8a8d1 NC |
508 | { |
509 | pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr, | |
510 | coff_section_data (vars->abfd, sec)->i); | |
511 | } | |
512 | ||
17505c5c | 513 | /* Move the queued relocs into the given section. */ |
7920ce38 | 514 | |
17505c5c NC |
515 | static void |
516 | pe_ILF_save_relocs (pe_ILF_vars * vars, | |
517 | asection_ptr sec) | |
518 | { | |
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. */ | |
522 | abort (); | |
523 | ||
524 | coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab; | |
0a1b45a2 | 525 | coff_section_data (vars->abfd, sec)->keep_relocs = true; |
17505c5c NC |
526 | |
527 | sec->relocation = vars->reltab; | |
528 | sec->reloc_count = vars->relcount; | |
529 | sec->flags |= SEC_RELOC; | |
530 | ||
531 | vars->reltab += vars->relcount; | |
532 | vars->int_reltab += vars->relcount; | |
533 | vars->relcount = 0; | |
534 | ||
dc810e39 | 535 | BFD_ASSERT ((bfd_byte *) vars->int_reltab < (bfd_byte *) vars->string_table); |
17505c5c NC |
536 | } |
537 | ||
538 | /* Create a global symbol and add it to the relevant tables. */ | |
7920ce38 | 539 | |
17505c5c NC |
540 | static void |
541 | pe_ILF_make_a_symbol (pe_ILF_vars * vars, | |
542 | const char * prefix, | |
543 | const char * symbol_name, | |
544 | asection_ptr section, | |
545 | flagword extra_flags) | |
546 | { | |
547 | coff_symbol_type * sym; | |
548 | combined_entry_type * ent; | |
549 | SYMENT * esym; | |
550 | unsigned short sclass; | |
551 | ||
552 | if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 553 | sclass = C_STAT; |
17505c5c NC |
554 | else |
555 | sclass = C_EXT; | |
ee91ed79 KH |
556 | |
557 | #ifdef THUMBPEMAGIC | |
17505c5c NC |
558 | if (vars->magic == THUMBPEMAGIC) |
559 | { | |
560 | if (extra_flags & BSF_FUNCTION) | |
561 | sclass = C_THUMBEXTFUNC; | |
562 | else if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 563 | sclass = C_THUMBSTAT; |
17505c5c NC |
564 | else |
565 | sclass = C_THUMBEXT; | |
566 | } | |
567 | #endif | |
568 | ||
569 | BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS); | |
ee91ed79 | 570 | |
17505c5c NC |
571 | sym = vars->sym_ptr; |
572 | ent = vars->native_ptr; | |
573 | esym = vars->esym_ptr; | |
574 | ||
575 | /* Copy the symbol's name into the string table. */ | |
576 | sprintf (vars->string_ptr, "%s%s", prefix, symbol_name); | |
577 | ||
10821322 | 578 | if (section == NULL) |
45dfa85a | 579 | section = bfd_und_section_ptr; |
ee91ed79 | 580 | |
17505c5c | 581 | /* Initialise the external symbol. */ |
dc810e39 AM |
582 | H_PUT_32 (vars->abfd, vars->string_ptr - vars->string_table, |
583 | esym->e.e.e_offset); | |
584 | H_PUT_16 (vars->abfd, section->target_index, esym->e_scnum); | |
17505c5c NC |
585 | esym->e_sclass[0] = sclass; |
586 | ||
587 | /* The following initialisations are unnecessary - the memory is | |
588 | zero initialised. They are just kept here as reminders. */ | |
ee91ed79 | 589 | |
17505c5c | 590 | /* Initialise the internal symbol structure. */ |
07d6d2b8 AM |
591 | ent->u.syment.n_sclass = sclass; |
592 | ent->u.syment.n_scnum = section->target_index; | |
60159858 | 593 | ent->u.syment._n._n_n._n_offset = (uintptr_t) sym; |
0a1b45a2 | 594 | ent->is_sym = true; |
ee91ed79 | 595 | |
17505c5c NC |
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; | |
07d6d2b8 | 600 | sym->native = ent; |
ee91ed79 | 601 | |
17505c5c | 602 | * vars->table_ptr = vars->sym_index; |
11c8a8d1 | 603 | * vars->sym_ptr_ptr = sym; |
ee91ed79 | 604 | |
17505c5c NC |
605 | /* Adjust pointers for the next symbol. */ |
606 | vars->sym_index ++; | |
607 | vars->sym_ptr ++; | |
11c8a8d1 | 608 | vars->sym_ptr_ptr ++; |
17505c5c NC |
609 | vars->table_ptr ++; |
610 | vars->native_ptr ++; | |
611 | vars->esym_ptr ++; | |
11c8a8d1 | 612 | vars->string_ptr += strlen (symbol_name) + strlen (prefix) + 1; |
17505c5c NC |
613 | |
614 | BFD_ASSERT (vars->string_ptr < vars->end_string_ptr); | |
615 | } | |
616 | ||
617 | /* Create a section. */ | |
7920ce38 | 618 | |
17505c5c NC |
619 | static asection_ptr |
620 | pe_ILF_make_a_section (pe_ILF_vars * vars, | |
621 | const char * name, | |
622 | unsigned int size, | |
623 | flagword extra_flags) | |
624 | { | |
625 | asection_ptr sec; | |
626 | flagword flags; | |
67580036 | 627 | intptr_t alignment; |
ee91ed79 | 628 | |
17505c5c NC |
629 | sec = bfd_make_section_old_way (vars->abfd, name); |
630 | if (sec == NULL) | |
631 | return NULL; | |
ee91ed79 | 632 | |
17505c5c | 633 | flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY; |
ee91ed79 | 634 | |
fd361982 | 635 | bfd_set_section_flags (sec, flags | extra_flags); |
ee91ed79 | 636 | |
fd361982 | 637 | bfd_set_section_alignment (sec, 2); |
ee91ed79 | 638 | |
17505c5c NC |
639 | /* Check that we will not run out of space. */ |
640 | BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 641 | |
17505c5c NC |
642 | /* Set the section size and contents. The actual |
643 | contents are filled in by our parent. */ | |
fd361982 | 644 | bfd_set_section_size (sec, (bfd_size_type) size); |
17505c5c NC |
645 | sec->contents = vars->data; |
646 | sec->target_index = vars->sec_index ++; | |
647 | ||
648 | /* Advance data pointer in the vars structure. */ | |
649 | vars->data += size; | |
ee91ed79 | 650 | |
17505c5c NC |
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. */ | |
655 | if (size & 1) | |
656 | vars->data --; | |
ee91ed79 | 657 | |
4b0e8a5f | 658 | /* PR 18758: See note in pe_ILF_buid_a_bfd. We must make sure that we |
67580036 AM |
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); | |
664 | #else | |
665 | alignment = 8; | |
4b0e8a5f | 666 | #endif |
67580036 AM |
667 | vars->data |
668 | = (bfd_byte *) (((intptr_t) vars->data + alignment - 1) & -alignment); | |
669 | ||
17505c5c NC |
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); | |
673 | ||
674 | BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 675 | |
17505c5c NC |
676 | /* Create a symbol to refer to this section. */ |
677 | pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL); | |
678 | ||
11c8a8d1 | 679 | /* Cache the index to the symbol in the coff_section_data structure. */ |
17505c5c | 680 | coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1; |
ee91ed79 | 681 | |
17505c5c NC |
682 | return sec; |
683 | } | |
684 | ||
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 | |
694 | ||
695 | typedef struct | |
696 | { | |
697 | unsigned short magic; | |
698 | unsigned char data[MAX_TEXT_SECTION_SIZE]; | |
699 | unsigned int size; | |
700 | unsigned int offset; | |
701 | } | |
702 | jump_table; | |
703 | ||
cf7a3c01 | 704 | static const jump_table jtab[] = |
17505c5c NC |
705 | { |
706 | #ifdef I386MAGIC | |
707 | { I386MAGIC, | |
708 | { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, | |
709 | 8, 2 | |
710 | }, | |
711 | #endif | |
ee91ed79 | 712 | |
99ad8390 NC |
713 | #ifdef AMD64MAGIC |
714 | { AMD64MAGIC, | |
715 | { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, | |
716 | 8, 2 | |
717 | }, | |
718 | #endif | |
719 | ||
17505c5c | 720 | #ifdef MC68MAGIC |
99ad8390 NC |
721 | { MC68MAGIC, |
722 | { /* XXX fill me in */ }, | |
723 | 0, 0 | |
724 | }, | |
17505c5c | 725 | #endif |
99ad8390 | 726 | |
17505c5c NC |
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 }, | |
731 | 16, 0 | |
732 | }, | |
733 | #endif | |
ee91ed79 | 734 | |
17505c5c NC |
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 }, | |
739 | 12, 8 | |
740 | }, | |
741 | #endif | |
ee91ed79 | 742 | |
b69c9d41 TC |
743 | #ifdef AARCH64MAGIC |
744 | /* We don't currently support jumping to DLLs, so if | |
745 | someone does try emit a runtime trap. Through UDF #0. */ | |
746 | { AARCH64MAGIC, | |
747 | { 0x00, 0x00, 0x00, 0x00 }, | |
748 | 4, 0 | |
749 | }, | |
750 | ||
751 | #endif | |
752 | ||
17505c5c NC |
753 | #ifdef ARMPEMAGIC |
754 | { ARMPEMAGIC, | |
755 | { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0, | |
756 | 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00}, | |
757 | 12, 8 | |
758 | }, | |
759 | #endif | |
ee91ed79 | 760 | |
17505c5c NC |
761 | #ifdef THUMBPEMAGIC |
762 | { THUMBPEMAGIC, | |
763 | { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46, | |
764 | 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 }, | |
765 | 16, 12 | |
766 | }, | |
767 | #endif | |
31f60095 YT |
768 | |
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. */ | |
772 | { LOONGARCH64MAGIC, | |
773 | { 0x00, 0x00, 0x2a, 0x00 }, | |
774 | 4, 0 | |
775 | }, | |
776 | ||
777 | #endif | |
778 | ||
17505c5c NC |
779 | { 0, { 0 }, 0, 0 } |
780 | }; | |
781 | ||
782 | #ifndef NUM_ENTRIES | |
783 | #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0]) | |
784 | #endif | |
785 | ||
786 | /* Build a full BFD from the information supplied in a ILF object. */ | |
7920ce38 | 787 | |
0a1b45a2 | 788 | static bool |
07d6d2b8 | 789 | pe_ILF_build_a_bfd (bfd * abfd, |
dc810e39 | 790 | unsigned int magic, |
07d6d2b8 AM |
791 | char * symbol_name, |
792 | char * source_dll, | |
17505c5c NC |
793 | unsigned int ordinal, |
794 | unsigned int types) | |
ee91ed79 | 795 | { |
07d6d2b8 AM |
796 | bfd_byte * ptr; |
797 | pe_ILF_vars vars; | |
17505c5c | 798 | struct internal_filehdr internal_f; |
07d6d2b8 AM |
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; | |
67580036 | 804 | intptr_t alignment; |
17505c5c | 805 | |
17505c5c NC |
806 | /* Decode and verify the types field of the ILF structure. */ |
807 | import_type = types & 0x3; | |
808 | import_name_type = (types & 0x1c) >> 2; | |
809 | ||
810 | switch (import_type) | |
811 | { | |
812 | case IMPORT_CODE: | |
813 | case IMPORT_DATA: | |
814 | break; | |
ee91ed79 | 815 | |
17505c5c NC |
816 | case IMPORT_CONST: |
817 | /* XXX code yet to be written. */ | |
695344c0 | 818 | /* xgettext:c-format */ |
59d08d6c | 819 | _bfd_error_handler (_("%pB: unhandled import type; %x"), |
d003868e | 820 | abfd, import_type); |
0a1b45a2 | 821 | return false; |
ee91ed79 | 822 | |
17505c5c | 823 | default: |
695344c0 | 824 | /* xgettext:c-format */ |
59d08d6c | 825 | _bfd_error_handler (_("%pB: unrecognized import type; %x"), |
d003868e | 826 | abfd, import_type); |
0a1b45a2 | 827 | return false; |
17505c5c NC |
828 | } |
829 | ||
830 | switch (import_name_type) | |
831 | { | |
832 | case IMPORT_ORDINAL: | |
833 | case IMPORT_NAME: | |
834 | case IMPORT_NAME_NOPREFIX: | |
835 | case IMPORT_NAME_UNDECORATE: | |
836 | break; | |
ee91ed79 | 837 | |
17505c5c | 838 | default: |
695344c0 | 839 | /* xgettext:c-format */ |
59d08d6c | 840 | _bfd_error_handler (_("%pB: unrecognized import name type; %x"), |
d003868e | 841 | abfd, import_name_type); |
0a1b45a2 | 842 | return false; |
17505c5c NC |
843 | } |
844 | ||
845 | /* Initialise local variables. | |
ee91ed79 | 846 | |
17505c5c NC |
847 | Note these are kept in a structure rather than being |
848 | declared as statics since bfd frowns on global variables. | |
ee91ed79 | 849 | |
17505c5c NC |
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. */ | |
493152cb AM |
852 | vars.bim |
853 | = (struct bfd_in_memory *) bfd_malloc ((bfd_size_type) sizeof (*vars.bim)); | |
854 | if (vars.bim == NULL) | |
0a1b45a2 | 855 | return false; |
17505c5c | 856 | |
493152cb | 857 | ptr = (bfd_byte *) bfd_zmalloc ((bfd_size_type) ILF_DATA_SIZE); |
17505c5c NC |
858 | vars.bim->buffer = ptr; |
859 | vars.bim->size = ILF_DATA_SIZE; | |
493152cb AM |
860 | if (ptr == NULL) |
861 | goto error_return; | |
ee91ed79 | 862 | |
17505c5c NC |
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; | |
867 | vars.sym_index = 0; | |
868 | ptr += SIZEOF_ILF_SYMS; | |
ee91ed79 | 869 | |
17505c5c NC |
870 | vars.sym_table = (unsigned int *) ptr; |
871 | vars.table_ptr = (unsigned int *) ptr; | |
872 | ptr += SIZEOF_ILF_SYM_TABLE; | |
873 | ||
874 | vars.native_syms = (combined_entry_type *) ptr; | |
875 | vars.native_ptr = (combined_entry_type *) ptr; | |
876 | ptr += SIZEOF_ILF_NATIVE_SYMS; | |
11c8a8d1 NC |
877 | |
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; | |
ee91ed79 | 881 | |
17505c5c NC |
882 | vars.esym_table = (SYMENT *) ptr; |
883 | vars.esym_ptr = (SYMENT *) ptr; | |
884 | ptr += SIZEOF_ILF_EXT_SYMS; | |
ee91ed79 | 885 | |
17505c5c NC |
886 | vars.reltab = (arelent *) ptr; |
887 | vars.relcount = 0; | |
888 | ptr += SIZEOF_ILF_RELOCS; | |
889 | ||
890 | vars.int_reltab = (struct internal_reloc *) ptr; | |
891 | ptr += SIZEOF_ILF_INT_RELOCS; | |
892 | ||
f075ee0c AM |
893 | vars.string_table = (char *) ptr; |
894 | vars.string_ptr = (char *) ptr + STRING_SIZE_SIZE; | |
17505c5c | 895 | ptr += SIZEOF_ILF_STRINGS; |
f075ee0c | 896 | vars.end_string_ptr = (char *) ptr; |
ee91ed79 | 897 | |
17505c5c NC |
898 | /* The remaining space in bim->buffer is used |
899 | by the pe_ILF_make_a_section() function. */ | |
67580036 | 900 | |
4b0e8a5f | 901 | /* PR 18758: Make sure that the data area is sufficiently aligned for |
67580036 AM |
902 | struct coff_section_tdata. __alignof__ is a gcc extension, hence |
903 | the test of GCC_VERSION. For other compilers we assume 8 byte | |
904 | alignment. */ | |
905 | #if GCC_VERSION >= 3000 | |
906 | alignment = __alignof__ (struct coff_section_tdata); | |
907 | #else | |
908 | alignment = 8; | |
4b0e8a5f | 909 | #endif |
67580036 | 910 | ptr = (bfd_byte *) (((intptr_t) ptr + alignment - 1) & -alignment); |
1b786873 | 911 | |
17505c5c NC |
912 | vars.data = ptr; |
913 | vars.abfd = abfd; | |
914 | vars.sec_index = 0; | |
915 | vars.magic = magic; | |
ee91ed79 | 916 | |
17505c5c | 917 | /* Create the initial .idata$<n> sections: |
11c8a8d1 | 918 | [.idata$2: Import Directory Table -- not needed] |
17505c5c NC |
919 | .idata$4: Import Lookup Table |
920 | .idata$5: Import Address Table | |
921 | ||
922 | Note we do not create a .idata$3 section as this is | |
923 | created for us by the linker script. */ | |
17505c5c NC |
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); | |
11c8a8d1 | 926 | if (id4 == NULL || id5 == NULL) |
493152cb | 927 | goto error_return; |
ee91ed79 | 928 | |
17505c5c NC |
929 | /* Fill in the contents of these sections. */ |
930 | if (import_name_type == IMPORT_ORDINAL) | |
931 | { | |
932 | if (ordinal == 0) | |
52c4f3bd NC |
933 | /* See PR 20907 for a reproducer. */ |
934 | goto error_return; | |
ee91ed79 | 935 | |
31f60095 | 936 | #if defined(COFF_WITH_pex64) || defined(COFF_WITH_peAArch64) || defined(COFF_WITH_peLoongArch64) |
99ad8390 NC |
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; | |
941 | #else | |
fc633e5b AM |
942 | * (unsigned int *) id4->contents = ordinal | 0x80000000; |
943 | * (unsigned int *) id5->contents = ordinal | 0x80000000; | |
99ad8390 | 944 | #endif |
17505c5c NC |
945 | } |
946 | else | |
947 | { | |
948 | char * symbol; | |
f67e617a | 949 | unsigned int len; |
ee91ed79 | 950 | |
17505c5c NC |
951 | /* Create .idata$6 - the Hint Name Table. */ |
952 | id6 = pe_ILF_make_a_section (& vars, ".idata$6", SIZEOF_IDATA6, 0); | |
953 | if (id6 == NULL) | |
493152cb | 954 | goto error_return; |
17505c5c NC |
955 | |
956 | /* If necessary, trim the import symbol name. */ | |
957 | symbol = symbol_name; | |
958 | ||
cabd4ccc DS |
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). */ | |
965 | ||
17505c5c | 966 | if (import_name_type != IMPORT_NAME) |
87cc7031 | 967 | { |
cabd4ccc | 968 | char c = symbol[0]; |
68ffbac6 | 969 | |
e7771322 KT |
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 == '?') | |
cabd4ccc | 974 | symbol++; |
87cc7031 | 975 | } |
68ffbac6 | 976 | |
f67e617a | 977 | len = strlen (symbol); |
17505c5c NC |
978 | if (import_name_type == IMPORT_NAME_UNDECORATE) |
979 | { | |
f67e617a NC |
980 | /* Truncate at the first '@'. */ |
981 | char *at = strchr (symbol, '@'); | |
17505c5c | 982 | |
f67e617a NC |
983 | if (at != NULL) |
984 | len = at - symbol; | |
17505c5c | 985 | } |
ee91ed79 | 986 | |
11c8a8d1 NC |
987 | id6->contents[0] = ordinal & 0xff; |
988 | id6->contents[1] = ordinal >> 8; | |
ee91ed79 | 989 | |
f67e617a NC |
990 | memcpy ((char *) id6->contents + 2, symbol, len); |
991 | id6->contents[len + 2] = '\0'; | |
17505c5c NC |
992 | } |
993 | ||
17505c5c NC |
994 | if (import_name_type != IMPORT_ORDINAL) |
995 | { | |
dc810e39 AM |
996 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6); |
997 | pe_ILF_save_relocs (&vars, id4); | |
ee91ed79 | 998 | |
dc810e39 AM |
999 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6); |
1000 | pe_ILF_save_relocs (&vars, id5); | |
17505c5c NC |
1001 | } |
1002 | ||
655ed9ea NS |
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; | |
1007 | ||
17505c5c NC |
1008 | /* Create extra sections depending upon the type of import we are dealing with. */ |
1009 | switch (import_type) | |
1010 | { | |
1011 | int i; | |
ee91ed79 | 1012 | |
17505c5c | 1013 | case IMPORT_CODE: |
655ed9ea | 1014 | /* CODE functions are special, in that they get a trampoline that |
07d6d2b8 | 1015 | jumps to the main import symbol. Create a .text section to hold it. |
17505c5c NC |
1016 | First we need to look up its contents in the jump table. */ |
1017 | for (i = NUM_ENTRIES (jtab); i--;) | |
1018 | { | |
1019 | if (jtab[i].size == 0) | |
1020 | continue; | |
1021 | if (jtab[i].magic == magic) | |
1022 | break; | |
1023 | } | |
1024 | /* If we did not find a matching entry something is wrong. */ | |
1025 | if (i < 0) | |
1026 | abort (); | |
1027 | ||
1028 | /* Create the .text section. */ | |
1029 | text = pe_ILF_make_a_section (& vars, ".text", jtab[i].size, SEC_CODE); | |
1030 | if (text == NULL) | |
493152cb | 1031 | goto error_return; |
17505c5c NC |
1032 | |
1033 | /* Copy in the jump code. */ | |
1034 | memcpy (text->contents, jtab[i].data, jtab[i].size); | |
1035 | ||
1036 | /* Create a reloc for the data in the text section. */ | |
ee91ed79 | 1037 | #ifdef MIPS_ARCH_MAGIC_WINCE |
17505c5c NC |
1038 | if (magic == MIPS_ARCH_MAGIC_WINCE) |
1039 | { | |
dc810e39 | 1040 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 0, BFD_RELOC_HI16_S, |
fc0a2244 | 1041 | (struct bfd_symbol **) imp_sym, |
dc810e39 AM |
1042 | imp_index); |
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, | |
fc0a2244 | 1045 | (struct bfd_symbol **) imp_sym, |
dc810e39 | 1046 | imp_index); |
17505c5c NC |
1047 | } |
1048 | else | |
27aaeda0 NC |
1049 | #endif |
1050 | #ifdef AMD64MAGIC | |
1051 | if (magic == AMD64MAGIC) | |
1052 | { | |
1053 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) jtab[i].offset, | |
1054 | BFD_RELOC_32_PCREL, (asymbol **) imp_sym, | |
1055 | imp_index); | |
1056 | } | |
1057 | else | |
17505c5c | 1058 | #endif |
dc810e39 AM |
1059 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) jtab[i].offset, |
1060 | BFD_RELOC_32, (asymbol **) imp_sym, | |
1061 | imp_index); | |
ee91ed79 | 1062 | |
17505c5c NC |
1063 | pe_ILF_save_relocs (& vars, text); |
1064 | break; | |
1065 | ||
1066 | case IMPORT_DATA: | |
1067 | break; | |
1068 | ||
1069 | default: | |
1070 | /* XXX code not yet written. */ | |
1071 | abort (); | |
1072 | } | |
ee91ed79 | 1073 | |
17505c5c NC |
1074 | /* Initialise the bfd. */ |
1075 | memset (& internal_f, 0, sizeof (internal_f)); | |
ee91ed79 | 1076 | |
17505c5c NC |
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 ? */ | |
ee91ed79 | 1081 | |
dc810e39 | 1082 | if ( ! bfd_set_start_address (abfd, (bfd_vma) 0) |
17505c5c | 1083 | || ! bfd_coff_set_arch_mach_hook (abfd, & internal_f)) |
493152cb | 1084 | goto error_return; |
17505c5c | 1085 | |
7920ce38 | 1086 | if (bfd_coff_mkobject_hook (abfd, (void *) & internal_f, NULL) == NULL) |
493152cb | 1087 | goto error_return; |
17505c5c NC |
1088 | |
1089 | coff_data (abfd)->pe = 1; | |
ee91ed79 | 1090 | #ifdef THUMBPEMAGIC |
17505c5c NC |
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; | |
1094 | #endif | |
ee91ed79 | 1095 | |
17505c5c NC |
1096 | /* Switch from file contents to memory contents. */ |
1097 | bfd_cache_close (abfd); | |
1098 | ||
7920ce38 | 1099 | abfd->iostream = (void *) vars.bim; |
17505c5c | 1100 | abfd->flags |= BFD_IN_MEMORY /* | HAS_LOCALS */; |
65077aa8 | 1101 | abfd->iovec = &_bfd_memory_iovec; |
17505c5c | 1102 | abfd->where = 0; |
65077aa8 | 1103 | abfd->origin = 0; |
17505c5c NC |
1104 | obj_sym_filepos (abfd) = 0; |
1105 | ||
1106 | /* Now create a symbol describing the imported value. */ | |
1107 | switch (import_type) | |
1108 | { | |
1109 | case IMPORT_CODE: | |
1110 | pe_ILF_make_a_symbol (& vars, "", symbol_name, text, | |
1111 | BSF_NOT_AT_END | BSF_FUNCTION); | |
ee91ed79 | 1112 | |
17505c5c NC |
1113 | break; |
1114 | ||
1115 | case IMPORT_DATA: | |
11c8a8d1 | 1116 | /* Nothing to do here. */ |
17505c5c | 1117 | break; |
ee91ed79 | 1118 | |
17505c5c NC |
1119 | default: |
1120 | /* XXX code not yet written. */ | |
1121 | abort (); | |
1122 | } | |
1123 | ||
655ed9ea NS |
1124 | /* Create an import symbol for the DLL, without the .dll suffix. */ |
1125 | ptr = (bfd_byte *) strrchr (source_dll, '.'); | |
1126 | if (ptr) | |
1127 | * ptr = 0; | |
1128 | pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0); | |
1129 | if (ptr) | |
1130 | * ptr = '.'; | |
1131 | ||
17505c5c NC |
1132 | /* Point the bfd at the symbol table. */ |
1133 | obj_symbols (abfd) = vars.sym_cache; | |
ed48ec2e | 1134 | abfd->symcount = vars.sym_index; |
ee91ed79 | 1135 | |
17505c5c NC |
1136 | obj_raw_syments (abfd) = vars.native_syms; |
1137 | obj_raw_syment_count (abfd) = vars.sym_index; | |
1138 | ||
7920ce38 | 1139 | obj_coff_external_syms (abfd) = (void *) vars.esym_table; |
0a1b45a2 | 1140 | obj_coff_keep_syms (abfd) = true; |
ee91ed79 | 1141 | |
17505c5c NC |
1142 | obj_convert (abfd) = vars.sym_table; |
1143 | obj_conv_table_size (abfd) = vars.sym_index; | |
ee91ed79 | 1144 | |
17505c5c | 1145 | obj_coff_strings (abfd) = vars.string_table; |
0a1b45a2 | 1146 | obj_coff_keep_strings (abfd) = true; |
17505c5c NC |
1147 | |
1148 | abfd->flags |= HAS_SYMS; | |
1149 | ||
0a1b45a2 | 1150 | return true; |
493152cb AM |
1151 | |
1152 | error_return: | |
c9594989 | 1153 | free (vars.bim->buffer); |
493152cb | 1154 | free (vars.bim); |
0a1b45a2 | 1155 | return false; |
17505c5c NC |
1156 | } |
1157 | ||
1158 | /* We have detected a Image Library Format archive element. | |
1159 | Decode the element and return the appropriate target. */ | |
7920ce38 | 1160 | |
cb001c0d | 1161 | static bfd_cleanup |
17505c5c NC |
1162 | pe_ILF_object_p (bfd * abfd) |
1163 | { | |
07d6d2b8 AM |
1164 | bfd_byte buffer[14]; |
1165 | bfd_byte * ptr; | |
1166 | char * symbol_name; | |
1167 | char * source_dll; | |
1168 | unsigned int machine; | |
1169 | bfd_size_type size; | |
1170 | unsigned int ordinal; | |
1171 | unsigned int types; | |
1172 | unsigned int magic; | |
ee91ed79 | 1173 | |
167ad85b | 1174 | /* Upon entry the first six bytes of the ILF header have |
17505c5c | 1175 | already been read. Now read the rest of the header. */ |
167ad85b | 1176 | if (bfd_bread (buffer, (bfd_size_type) 14, abfd) != 14) |
17505c5c NC |
1177 | return NULL; |
1178 | ||
1179 | ptr = buffer; | |
ee91ed79 | 1180 | |
dc810e39 | 1181 | machine = H_GET_16 (abfd, ptr); |
17505c5c NC |
1182 | ptr += 2; |
1183 | ||
1184 | /* Check that the machine type is recognised. */ | |
1185 | magic = 0; | |
ee91ed79 | 1186 | |
17505c5c NC |
1187 | switch (machine) |
1188 | { | |
1189 | case IMAGE_FILE_MACHINE_UNKNOWN: | |
1190 | case IMAGE_FILE_MACHINE_ALPHA: | |
1191 | case IMAGE_FILE_MACHINE_ALPHA64: | |
1192 | case IMAGE_FILE_MACHINE_IA64: | |
1193 | break; | |
ee91ed79 | 1194 | |
17505c5c NC |
1195 | case IMAGE_FILE_MACHINE_I386: |
1196 | #ifdef I386MAGIC | |
1197 | magic = I386MAGIC; | |
1198 | #endif | |
1199 | break; | |
ee91ed79 | 1200 | |
99ad8390 NC |
1201 | case IMAGE_FILE_MACHINE_AMD64: |
1202 | #ifdef AMD64MAGIC | |
1203 | magic = AMD64MAGIC; | |
1204 | #endif | |
1205 | break; | |
1206 | ||
17505c5c NC |
1207 | case IMAGE_FILE_MACHINE_R3000: |
1208 | case IMAGE_FILE_MACHINE_R4000: | |
1209 | case IMAGE_FILE_MACHINE_R10000: | |
ee91ed79 | 1210 | |
17505c5c NC |
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; | |
1216 | #endif | |
1217 | break; | |
ee91ed79 | 1218 | |
17505c5c NC |
1219 | case IMAGE_FILE_MACHINE_SH3: |
1220 | case IMAGE_FILE_MACHINE_SH4: | |
1221 | #ifdef SH_ARCH_MAGIC_WINCE | |
1222 | magic = SH_ARCH_MAGIC_WINCE; | |
1223 | #endif | |
1224 | break; | |
ee91ed79 | 1225 | |
17505c5c NC |
1226 | case IMAGE_FILE_MACHINE_ARM: |
1227 | #ifdef ARMPEMAGIC | |
1228 | magic = ARMPEMAGIC; | |
ee91ed79 | 1229 | #endif |
17505c5c | 1230 | break; |
ee91ed79 | 1231 | |
b69c9d41 TC |
1232 | case IMAGE_FILE_MACHINE_ARM64: |
1233 | #ifdef AARCH64MAGIC | |
1234 | magic = AARCH64MAGIC; | |
1235 | #endif | |
1236 | break; | |
1237 | ||
31f60095 YT |
1238 | case IMAGE_FILE_MACHINE_LOONGARCH64: |
1239 | #ifdef LOONGARCH64MAGIC | |
1240 | magic = LOONGARCH64MAGIC; | |
1241 | #endif | |
1242 | break; | |
1243 | ||
17505c5c NC |
1244 | case IMAGE_FILE_MACHINE_THUMB: |
1245 | #ifdef THUMBPEMAGIC | |
1246 | { | |
23ccc829 | 1247 | extern const bfd_target TARGET_LITTLE_SYM; |
ee91ed79 | 1248 | |
26bfd1c0 | 1249 | if (abfd->xvec == & TARGET_LITTLE_SYM) |
17505c5c NC |
1250 | magic = THUMBPEMAGIC; |
1251 | } | |
ee91ed79 | 1252 | #endif |
17505c5c | 1253 | break; |
ee91ed79 | 1254 | |
17505c5c NC |
1255 | case IMAGE_FILE_MACHINE_POWERPC: |
1256 | /* We no longer support PowerPC. */ | |
1257 | default: | |
1258 | _bfd_error_handler | |
695344c0 | 1259 | /* xgettext:c-format */ |
59d08d6c | 1260 | (_("%pB: unrecognised machine type (0x%x)" |
d003868e AM |
1261 | " in Import Library Format archive"), |
1262 | abfd, machine); | |
17505c5c | 1263 | bfd_set_error (bfd_error_malformed_archive); |
ee91ed79 | 1264 | |
17505c5c NC |
1265 | return NULL; |
1266 | break; | |
1267 | } | |
1268 | ||
1269 | if (magic == 0) | |
1270 | { | |
1271 | _bfd_error_handler | |
695344c0 | 1272 | /* xgettext:c-format */ |
59d08d6c | 1273 | (_("%pB: recognised but unhandled machine type (0x%x)" |
d003868e AM |
1274 | " in Import Library Format archive"), |
1275 | abfd, machine); | |
17505c5c | 1276 | bfd_set_error (bfd_error_wrong_format); |
ee91ed79 | 1277 | |
17505c5c | 1278 | return NULL; |
ee91ed79 | 1279 | } |
17505c5c NC |
1280 | |
1281 | /* We do not bother to check the date. | |
dc810e39 | 1282 | date = H_GET_32 (abfd, ptr); */ |
17505c5c | 1283 | ptr += 4; |
ee91ed79 | 1284 | |
dc810e39 | 1285 | size = H_GET_32 (abfd, ptr); |
17505c5c NC |
1286 | ptr += 4; |
1287 | ||
1288 | if (size == 0) | |
1289 | { | |
1290 | _bfd_error_handler | |
871b3ab2 | 1291 | (_("%pB: size field is zero in Import Library Format header"), abfd); |
17505c5c | 1292 | bfd_set_error (bfd_error_malformed_archive); |
ee91ed79 | 1293 | |
17505c5c NC |
1294 | return NULL; |
1295 | } | |
1296 | ||
dc810e39 | 1297 | ordinal = H_GET_16 (abfd, ptr); |
17505c5c NC |
1298 | ptr += 2; |
1299 | ||
dc810e39 | 1300 | types = H_GET_16 (abfd, ptr); |
17505c5c NC |
1301 | /* ptr += 2; */ |
1302 | ||
1303 | /* Now read in the two strings that follow. */ | |
2bb3687b | 1304 | ptr = (bfd_byte *) _bfd_alloc_and_read (abfd, size, size); |
17505c5c NC |
1305 | if (ptr == NULL) |
1306 | return NULL; | |
ee91ed79 | 1307 | |
f075ee0c | 1308 | symbol_name = (char *) ptr; |
fa6631b4 NC |
1309 | /* See PR 20905 for an example of where the strnlen is necessary. */ |
1310 | source_dll = symbol_name + strnlen (symbol_name, size - 1) + 1; | |
ee91ed79 | 1311 | |
17505c5c | 1312 | /* Verify that the strings are null terminated. */ |
f075ee0c AM |
1313 | if (ptr[size - 1] != 0 |
1314 | || (bfd_size_type) ((bfd_byte *) source_dll - ptr) >= size) | |
17505c5c NC |
1315 | { |
1316 | _bfd_error_handler | |
59d08d6c | 1317 | (_("%pB: string not null terminated in ILF object file"), abfd); |
17505c5c | 1318 | bfd_set_error (bfd_error_malformed_archive); |
487e54f2 | 1319 | bfd_release (abfd, ptr); |
17505c5c NC |
1320 | return NULL; |
1321 | } | |
ee91ed79 | 1322 | |
17505c5c NC |
1323 | /* Now construct the bfd. */ |
1324 | if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name, | |
1325 | source_dll, ordinal, types)) | |
487e54f2 AM |
1326 | { |
1327 | bfd_release (abfd, ptr); | |
1328 | return NULL; | |
1329 | } | |
ee91ed79 | 1330 | |
cb001c0d | 1331 | return _bfd_no_cleanup; |
17505c5c NC |
1332 | } |
1333 | ||
c74f7d1c | 1334 | static void |
e6d042fe | 1335 | pe_bfd_read_buildid (bfd *abfd) |
c74f7d1c JT |
1336 | { |
1337 | pe_data_type *pe = pe_data (abfd); | |
1338 | struct internal_extra_pe_aouthdr *extra = &pe->pe_opthdr; | |
1339 | asection *section; | |
1340 | bfd_byte *data = 0; | |
1341 | bfd_size_type dataoff; | |
1342 | unsigned int i; | |
c74f7d1c JT |
1343 | bfd_vma addr = extra->DataDirectory[PE_DEBUG_DATA].VirtualAddress; |
1344 | bfd_size_type size = extra->DataDirectory[PE_DEBUG_DATA].Size; | |
1345 | ||
1346 | if (size == 0) | |
1347 | return; | |
1348 | ||
1349 | addr += extra->ImageBase; | |
1350 | ||
e6d042fe | 1351 | /* Search for the section containing the DebugDirectory. */ |
c74f7d1c JT |
1352 | for (section = abfd->sections; section != NULL; section = section->next) |
1353 | { | |
1354 | if ((addr >= section->vma) && (addr < (section->vma + section->size))) | |
07d6d2b8 | 1355 | break; |
c74f7d1c JT |
1356 | } |
1357 | ||
1358 | if (section == NULL) | |
e6d042fe NC |
1359 | return; |
1360 | ||
1361 | if (!(section->flags & SEC_HAS_CONTENTS)) | |
1362 | return; | |
c74f7d1c JT |
1363 | |
1364 | dataoff = addr - section->vma; | |
1365 | ||
0bb6961f NC |
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. */ | |
e0115a84 NC |
1369 | if (dataoff >= section->size |
1370 | || size > section->size - dataoff) | |
e6d042fe | 1371 | { |
59d08d6c AM |
1372 | _bfd_error_handler |
1373 | (_("%pB: error: debug data ends beyond end of debug directory"), | |
1374 | abfd); | |
e6d042fe NC |
1375 | return; |
1376 | } | |
07d6d2b8 | 1377 | |
c74f7d1c JT |
1378 | /* Read the whole section. */ |
1379 | if (!bfd_malloc_and_get_section (abfd, section, &data)) | |
1380 | { | |
c9594989 | 1381 | free (data); |
c74f7d1c JT |
1382 | return; |
1383 | } | |
1384 | ||
1385 | /* Search for a CodeView entry in the DebugDirectory */ | |
1386 | for (i = 0; i < size / sizeof (struct external_IMAGE_DEBUG_DIRECTORY); i++) | |
1387 | { | |
1388 | struct external_IMAGE_DEBUG_DIRECTORY *ext | |
1389 | = &((struct external_IMAGE_DEBUG_DIRECTORY *)(data + dataoff))[i]; | |
1390 | struct internal_IMAGE_DEBUG_DIRECTORY idd; | |
1391 | ||
1392 | _bfd_XXi_swap_debugdir_in (abfd, ext, &idd); | |
1393 | ||
1394 | if (idd.Type == PE_IMAGE_DEBUG_TYPE_CODEVIEW) | |
07d6d2b8 AM |
1395 | { |
1396 | char buffer[256 + 1]; | |
1397 | CODEVIEW_INFO *cvinfo = (CODEVIEW_INFO *) buffer; | |
1398 | ||
1399 | /* | |
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. | |
1402 | */ | |
1403 | if (_bfd_XXi_slurp_codeview_record (abfd, | |
1404 | (file_ptr) idd.PointerToRawData, | |
f6f30f34 | 1405 | idd.SizeOfData, cvinfo, NULL)) |
07d6d2b8 AM |
1406 | { |
1407 | struct bfd_build_id* build_id = bfd_alloc (abfd, | |
1408 | sizeof (struct bfd_build_id) + cvinfo->SignatureLength); | |
1409 | if (build_id) | |
1410 | { | |
1411 | build_id->size = cvinfo->SignatureLength; | |
1412 | memcpy(build_id->data, cvinfo->Signature, | |
1413 | cvinfo->SignatureLength); | |
1414 | abfd->build_id = build_id; | |
1415 | } | |
1416 | } | |
1417 | break; | |
1418 | } | |
c74f7d1c | 1419 | } |
f5311f25 HD |
1420 | |
1421 | free (data); | |
c74f7d1c JT |
1422 | } |
1423 | ||
cb001c0d | 1424 | static bfd_cleanup |
17505c5c | 1425 | pe_bfd_object_p (bfd * abfd) |
cb665cd3 | 1426 | { |
167ad85b | 1427 | bfd_byte buffer[6]; |
830db048 | 1428 | struct external_DOS_hdr dos_hdr; |
15e0ecd9 | 1429 | struct external_PEI_IMAGE_hdr image_hdr; |
ce63b7b3 KT |
1430 | struct internal_filehdr internal_f; |
1431 | struct internal_aouthdr internal_a; | |
806470a2 | 1432 | bfd_size_type opt_hdr_size; |
cb665cd3 | 1433 | file_ptr offset; |
cb001c0d | 1434 | bfd_cleanup result; |
cb665cd3 NC |
1435 | |
1436 | /* Detect if this a Microsoft Import Library Format element. */ | |
167ad85b | 1437 | /* First read the beginning of the header. */ |
dc810e39 | 1438 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 |
167ad85b | 1439 | || bfd_bread (buffer, (bfd_size_type) 6, abfd) != 6) |
cb665cd3 NC |
1440 | { |
1441 | if (bfd_get_error () != bfd_error_system_call) | |
1442 | bfd_set_error (bfd_error_wrong_format); | |
1443 | return NULL; | |
1444 | } | |
ee91ed79 | 1445 | |
167ad85b TG |
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) | |
17505c5c | 1449 | return pe_ILF_object_p (abfd); |
ee91ed79 | 1450 | |
dc810e39 AM |
1451 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 |
1452 | || bfd_bread (&dos_hdr, (bfd_size_type) sizeof (dos_hdr), abfd) | |
15e0ecd9 | 1453 | != sizeof (dos_hdr)) |
cb665cd3 NC |
1454 | { |
1455 | if (bfd_get_error () != bfd_error_system_call) | |
1456 | bfd_set_error (bfd_error_wrong_format); | |
1457 | return NULL; | |
1458 | } | |
1459 | ||
15e0ecd9 L |
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 | |
830db048 | 1462 | determines the architecture. The former is IMAGE_DOS_SIGNATURE, stored in |
15e0ecd9 L |
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 | |
1469 | a false match. */ | |
830db048 | 1470 | if (H_GET_16 (abfd, dos_hdr.e_magic) != IMAGE_DOS_SIGNATURE) |
15e0ecd9 L |
1471 | { |
1472 | bfd_set_error (bfd_error_wrong_format); | |
1473 | return NULL; | |
1474 | } | |
cb665cd3 | 1475 | |
dc810e39 AM |
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))) | |
cb665cd3 NC |
1480 | { |
1481 | if (bfd_get_error () != bfd_error_system_call) | |
1482 | bfd_set_error (bfd_error_wrong_format); | |
1483 | return NULL; | |
1484 | } | |
1485 | ||
dc810e39 | 1486 | if (H_GET_32 (abfd, image_hdr.nt_signature) != 0x4550) |
cb665cd3 NC |
1487 | { |
1488 | bfd_set_error (bfd_error_wrong_format); | |
1489 | return NULL; | |
1490 | } | |
ee91ed79 | 1491 | |
ce63b7b3 KT |
1492 | /* Swap file header, so that we get the location for calling |
1493 | real_object_p. */ | |
36e9d67b | 1494 | bfd_coff_swap_filehdr_in (abfd, &image_hdr, &internal_f); |
ce63b7b3 KT |
1495 | |
1496 | if (! bfd_coff_bad_format_hook (abfd, &internal_f) | |
1497 | || internal_f.f_opthdr > bfd_coff_aoutsz (abfd)) | |
cb665cd3 | 1498 | { |
ce63b7b3 | 1499 | bfd_set_error (bfd_error_wrong_format); |
cb665cd3 NC |
1500 | return NULL; |
1501 | } | |
1502 | ||
70cf6834 AE |
1503 | memcpy (internal_f.pe.dos_message, dos_hdr.dos_message, |
1504 | sizeof (internal_f.pe.dos_message)); | |
1505 | ||
ce63b7b3 KT |
1506 | /* Read the optional header, which has variable size. */ |
1507 | opt_hdr_size = internal_f.f_opthdr; | |
1508 | ||
1509 | if (opt_hdr_size != 0) | |
1510 | { | |
36e9d67b | 1511 | bfd_size_type amt = opt_hdr_size; |
b6fca8a3 | 1512 | bfd_byte * opthdr; |
ce63b7b3 | 1513 | |
36e9d67b NC |
1514 | /* PR 17521 file: 230-131433-0.004. */ |
1515 | if (amt < sizeof (PEAOUTHDR)) | |
1516 | amt = sizeof (PEAOUTHDR); | |
1517 | ||
2bb3687b | 1518 | opthdr = _bfd_alloc_and_read (abfd, amt, opt_hdr_size); |
ce63b7b3 KT |
1519 | if (opthdr == NULL) |
1520 | return NULL; | |
806470a2 AM |
1521 | if (amt > opt_hdr_size) |
1522 | memset (opthdr + opt_hdr_size, 0, amt - opt_hdr_size); | |
ce63b7b3 | 1523 | |
ea4e4a19 AM |
1524 | bfd_coff_swap_aouthdr_in (abfd, opthdr, &internal_a); |
1525 | ||
1526 | struct internal_extra_pe_aouthdr *a = &internal_a.pe; | |
1527 | if ((a->SectionAlignment & -a->SectionAlignment) != a->SectionAlignment | |
1528 | || a->SectionAlignment >= 0x80000000) | |
1529 | { | |
1530 | const char **warn = _bfd_per_xvec_warn (abfd->xvec); | |
1531 | *warn = _("%pB: adjusting invalid SectionAlignment"); | |
1532 | a->SectionAlignment &= -a->SectionAlignment; | |
1533 | if (a->SectionAlignment >= 0x80000000) | |
1534 | a->SectionAlignment = 0x40000000; | |
1535 | } | |
1536 | ||
1537 | if ((a->FileAlignment & -a->FileAlignment) != a->FileAlignment | |
1538 | || a->FileAlignment > a->SectionAlignment) | |
1539 | { | |
1540 | const char **warn = _bfd_per_xvec_warn (abfd->xvec); | |
1541 | *warn = _("%pB: adjusting invalid FileAlignment"); | |
1542 | a->FileAlignment &= -a->FileAlignment; | |
1543 | if (a->FileAlignment > a->SectionAlignment) | |
1544 | a->FileAlignment = a->SectionAlignment; | |
1545 | } | |
ce63b7b3 | 1546 | |
ea4e4a19 AM |
1547 | if (a->NumberOfRvaAndSizes > IMAGE_NUMBEROF_DIRECTORY_ENTRIES) |
1548 | { | |
1549 | const char **warn = _bfd_per_xvec_warn (abfd->xvec); | |
1550 | *warn = _("%pB: invalid NumberOfRvaAndSizes"); | |
1551 | } | |
1552 | } | |
c74f7d1c JT |
1553 | |
1554 | result = coff_real_object_p (abfd, internal_f.f_nscns, &internal_f, | |
07d6d2b8 AM |
1555 | (opt_hdr_size != 0 |
1556 | ? &internal_a | |
1557 | : (struct internal_aouthdr *) NULL)); | |
c74f7d1c | 1558 | |
c74f7d1c JT |
1559 | if (result) |
1560 | { | |
1561 | /* Now the whole header has been processed, see if there is a build-id */ | |
1562 | pe_bfd_read_buildid(abfd); | |
1563 | } | |
1564 | ||
1565 | return result; | |
cb665cd3 NC |
1566 | } |
1567 | ||
1568 | #define coff_object_p pe_bfd_object_p | |
17505c5c | 1569 | #endif /* COFF_IMAGE_WITH_PE */ |