]>
Commit | Line | Data |
---|---|---|
277d1b5e | 1 | /* Support for the generic parts of PE/PEI, for BFD. |
fd67aa11 | 2 | Copyright (C) 1995-2024 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. */ |
1b183017 | 236 | #if !defined(COFF_WITH_pex64) && !defined(COFF_WITH_peAArch64) && !defined(COFF_WITH_peLoongArch64) && !defined(COFF_WITH_peRiscV64) |
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 | 260 | { |
6785fd72 AM |
261 | /* Some x86 code followed by an ascii string. */ |
262 | static const char default_dos_message[64] = { | |
263 | 0x0e, 0x1f, 0xba, 0x0e, 0x00, 0xb4, 0x09, 0xcd, | |
264 | 0x21, 0xb8, 0x01, 0x4c, 0xcd, 0x21, 0x54, 0x68, | |
265 | 0x69, 0x73, 0x20, 0x70, 0x72, 0x6f, 0x67, 0x72, | |
266 | 0x61, 0x6d, 0x20, 0x63, 0x61, 0x6e, 0x6e, 0x6f, | |
267 | 0x74, 0x20, 0x62, 0x65, 0x20, 0x72, 0x75, 0x6e, | |
268 | 0x20, 0x69, 0x6e, 0x20, 0x44, 0x4f, 0x53, 0x20, | |
269 | 0x6d, 0x6f, 0x64, 0x65, 0x2e, 0x0d, 0x0d, 0x0a, | |
270 | 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; | |
271 | ||
272 | pe_data_type *pe = bfd_zalloc (abfd, sizeof (*pe)); | |
273 | abfd->tdata.pe_obj_data = pe; | |
274 | if (pe == NULL) | |
0a1b45a2 | 275 | return false; |
252b5132 | 276 | |
252b5132 | 277 | pe->coff.pe = 1; |
277d1b5e ILT |
278 | |
279 | /* in_reloc_p is architecture dependent. */ | |
252b5132 | 280 | pe->in_reloc_p = in_reloc_p; |
cbff5e0d | 281 | |
6785fd72 | 282 | memcpy (pe->dos_message, default_dos_message, sizeof (pe->dos_message)); |
22a95e1a AM |
283 | |
284 | bfd_coff_long_section_names (abfd) | |
285 | = coff_backend_info (abfd)->_bfd_coff_long_section_names; | |
286 | ||
0a1b45a2 | 287 | return true; |
252b5132 RH |
288 | } |
289 | ||
290 | /* Create the COFF backend specific information. */ | |
7920ce38 NC |
291 | |
292 | static void * | |
293 | pe_mkobject_hook (bfd * abfd, | |
294 | void * filehdr, | |
295 | void * aouthdr ATTRIBUTE_UNUSED) | |
252b5132 RH |
296 | { |
297 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
298 | pe_data_type *pe; | |
299 | ||
82e51918 | 300 | if (! pe_mkobject (abfd)) |
252b5132 RH |
301 | return NULL; |
302 | ||
303 | pe = pe_data (abfd); | |
304 | pe->coff.sym_filepos = internal_f->f_symptr; | |
305 | /* These members communicate important constants about the symbol | |
306 | table to GDB's symbol-reading code. These `constants' | |
307 | unfortunately vary among coff implementations... */ | |
308 | pe->coff.local_n_btmask = N_BTMASK; | |
309 | pe->coff.local_n_btshft = N_BTSHFT; | |
310 | pe->coff.local_n_tmask = N_TMASK; | |
311 | pe->coff.local_n_tshift = N_TSHIFT; | |
312 | pe->coff.local_symesz = SYMESZ; | |
313 | pe->coff.local_auxesz = AUXESZ; | |
314 | pe->coff.local_linesz = LINESZ; | |
315 | ||
1135238b ILT |
316 | pe->coff.timestamp = internal_f->f_timdat; |
317 | ||
252b5132 RH |
318 | obj_raw_syment_count (abfd) = |
319 | obj_conv_table_size (abfd) = | |
320 | internal_f->f_nsyms; | |
321 | ||
322 | pe->real_flags = internal_f->f_flags; | |
323 | ||
324 | if ((internal_f->f_flags & F_DLL) != 0) | |
325 | pe->dll = 1; | |
326 | ||
4cfec37b ILT |
327 | if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) |
328 | abfd->flags |= HAS_DEBUG; | |
329 | ||
252b5132 | 330 | #ifdef COFF_IMAGE_WITH_PE |
ee91ed79 | 331 | if (aouthdr) |
7920ce38 | 332 | pe->pe_opthdr = ((struct internal_aouthdr *) aouthdr)->pe; |
252b5132 RH |
333 | #endif |
334 | ||
ee91ed79 | 335 | #ifdef ARM |
252b5132 RH |
336 | if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) |
337 | coff_data (abfd) ->flags = 0; | |
338 | #endif | |
ee91ed79 | 339 | |
70cf6834 AE |
340 | memcpy (pe->dos_message, internal_f->pe.dos_message, |
341 | sizeof (pe->dos_message)); | |
342 | ||
7920ce38 | 343 | return (void *) pe; |
252b5132 RH |
344 | } |
345 | ||
0a1b45a2 | 346 | static bool |
7920ce38 | 347 | pe_print_private_bfd_data (bfd *abfd, void * vfile) |
277d1b5e ILT |
348 | { |
349 | FILE *file = (FILE *) vfile; | |
350 | ||
cbff5e0d | 351 | if (!_bfd_XX_print_private_bfd_data_common (abfd, vfile)) |
0a1b45a2 | 352 | return false; |
252b5132 | 353 | |
7920ce38 | 354 | if (pe_saved_coff_bfd_print_private_bfd_data == NULL) |
0a1b45a2 | 355 | return true; |
277d1b5e | 356 | |
7920ce38 | 357 | fputc ('\n', file); |
277d1b5e | 358 | |
7920ce38 | 359 | return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile); |
277d1b5e | 360 | } |
252b5132 RH |
361 | |
362 | /* Copy any private info we understand from the input bfd | |
363 | to the output bfd. */ | |
364 | ||
0a1b45a2 | 365 | static bool |
7920ce38 | 366 | pe_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
252b5132 | 367 | { |
5c9c6a54 NC |
368 | /* PR binutils/716: Copy the large address aware flag. |
369 | XXX: Should we be copying other flags or other fields in the pe_data() | |
370 | structure ? */ | |
371 | if (pe_data (obfd) != NULL | |
372 | && pe_data (ibfd) != NULL | |
373 | && pe_data (ibfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE) | |
374 | pe_data (obfd)->real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE; | |
68ffbac6 | 375 | |
cbff5e0d | 376 | if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd, obfd)) |
0a1b45a2 | 377 | return false; |
252b5132 RH |
378 | |
379 | if (pe_saved_coff_bfd_copy_private_bfd_data) | |
380 | return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd); | |
252b5132 | 381 | |
0a1b45a2 | 382 | return true; |
252b5132 RH |
383 | } |
384 | ||
277d1b5e | 385 | #define coff_bfd_copy_private_section_data \ |
cbff5e0d | 386 | _bfd_XX_bfd_copy_private_section_data |
7d2b58d6 | 387 | |
cbff5e0d | 388 | #define coff_get_symbol_info _bfd_XX_get_symbol_info |
cb665cd3 | 389 | |
b1f10154 | 390 | #ifdef COFF_IMAGE_WITH_PE |
17505c5c | 391 | \f |
447d0669 | 392 | /* Code to handle Microsoft's Import Library Format. |
17505c5c | 393 | Also known as LINK6 format. |
ee91ed79 | 394 | Documentation about this format can be found at: |
17505c5c | 395 | |
447d0669 | 396 | https://learn.microsoft.com/en-us/windows/win32/debug/pe-format#import-library-format */ |
17505c5c NC |
397 | |
398 | /* The following constants specify the sizes of the various data | |
399 | structures that we have to create in order to build a bfd describing | |
400 | an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6 | |
401 | and SIZEOF_IDATA7 below is to allow for the possibility that we might | |
402 | need a padding byte in order to ensure 16 bit alignment for the section's | |
403 | contents. | |
404 | ||
405 | The value for SIZEOF_ILF_STRINGS is computed as follows: | |
406 | ||
407 | There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters | |
11c8a8d1 | 408 | per symbol for their names (longest section name is .idata$x). |
17505c5c NC |
409 | |
410 | There will be two symbols for the imported value, one the symbol name | |
411 | and one with _imp__ prefixed. Allowing for the terminating nul's this | |
11c8a8d1 | 412 | is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll). |
17505c5c NC |
413 | |
414 | The strings in the string table must start STRING__SIZE_SIZE bytes into | |
415 | the table in order to for the string lookup code in coffgen/coffcode to | |
416 | work. */ | |
417 | #define NUM_ILF_RELOCS 8 | |
07d6d2b8 AM |
418 | #define NUM_ILF_SECTIONS 6 |
419 | #define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS) | |
ee91ed79 | 420 | |
7920ce38 NC |
421 | #define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache)) |
422 | #define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table)) | |
423 | #define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms)) | |
11c8a8d1 | 424 | #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table)) |
7920ce38 NC |
425 | #define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table)) |
426 | #define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab)) | |
427 | #define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab)) | |
428 | #define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \ | |
11c8a8d1 NC |
429 | + 21 + strlen (source_dll) \ |
430 | + NUM_ILF_SECTIONS * 9 \ | |
431 | + STRING_SIZE_SIZE) | |
17505c5c | 432 | #define SIZEOF_IDATA2 (5 * 4) |
99ad8390 NC |
433 | |
434 | /* For PEx64 idata4 & 5 have thumb size of 8 bytes. */ | |
16fea92c | 435 | #if defined(COFF_WITH_pex64) || defined(COFF_WITH_peAArch64) |
99ad8390 NC |
436 | #define SIZEOF_IDATA4 (2 * 4) |
437 | #define SIZEOF_IDATA5 (2 * 4) | |
438 | #else | |
17505c5c NC |
439 | #define SIZEOF_IDATA4 (1 * 4) |
440 | #define SIZEOF_IDATA5 (1 * 4) | |
99ad8390 NC |
441 | #endif |
442 | ||
17505c5c NC |
443 | #define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1) |
444 | #define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1) | |
07d6d2b8 | 445 | #define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata)) |
ee91ed79 | 446 | |
17505c5c | 447 | #define ILF_DATA_SIZE \ |
17505c5c NC |
448 | + SIZEOF_ILF_SYMS \ |
449 | + SIZEOF_ILF_SYM_TABLE \ | |
450 | + SIZEOF_ILF_NATIVE_SYMS \ | |
11c8a8d1 | 451 | + SIZEOF_ILF_SYM_PTR_TABLE \ |
17505c5c NC |
452 | + SIZEOF_ILF_EXT_SYMS \ |
453 | + SIZEOF_ILF_RELOCS \ | |
454 | + SIZEOF_ILF_INT_RELOCS \ | |
455 | + SIZEOF_ILF_STRINGS \ | |
456 | + SIZEOF_IDATA2 \ | |
457 | + SIZEOF_IDATA4 \ | |
458 | + SIZEOF_IDATA5 \ | |
459 | + SIZEOF_IDATA6 \ | |
460 | + SIZEOF_IDATA7 \ | |
461 | + SIZEOF_ILF_SECTIONS \ | |
462 | + MAX_TEXT_SECTION_SIZE | |
463 | ||
17505c5c | 464 | /* Create an empty relocation against the given symbol. */ |
7920ce38 | 465 | |
17505c5c | 466 | static void |
07d6d2b8 AM |
467 | pe_ILF_make_a_symbol_reloc (pe_ILF_vars * vars, |
468 | bfd_vma address, | |
469 | bfd_reloc_code_real_type reloc, | |
470 | struct bfd_symbol ** sym, | |
471 | unsigned int sym_index) | |
17505c5c NC |
472 | { |
473 | arelent * entry; | |
474 | struct internal_reloc * internal; | |
475 | ||
476 | entry = vars->reltab + vars->relcount; | |
477 | internal = vars->int_reltab + vars->relcount; | |
ee91ed79 | 478 | |
17505c5c NC |
479 | entry->address = address; |
480 | entry->addend = 0; | |
481 | entry->howto = bfd_reloc_type_lookup (vars->abfd, reloc); | |
11c8a8d1 | 482 | entry->sym_ptr_ptr = sym; |
17505c5c NC |
483 | |
484 | internal->r_vaddr = address; | |
11c8a8d1 | 485 | internal->r_symndx = sym_index; |
8b14b0cb | 486 | internal->r_type = entry->howto ? entry->howto->type : 0; |
ee91ed79 | 487 | |
17505c5c | 488 | vars->relcount ++; |
ee91ed79 | 489 | |
17505c5c NC |
490 | BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS); |
491 | } | |
492 | ||
11c8a8d1 | 493 | /* Create an empty relocation against the given section. */ |
7920ce38 | 494 | |
11c8a8d1 | 495 | static void |
07d6d2b8 AM |
496 | pe_ILF_make_a_reloc (pe_ILF_vars * vars, |
497 | bfd_vma address, | |
11c8a8d1 | 498 | bfd_reloc_code_real_type reloc, |
07d6d2b8 | 499 | asection_ptr sec) |
11c8a8d1 NC |
500 | { |
501 | pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr, | |
502 | coff_section_data (vars->abfd, sec)->i); | |
503 | } | |
504 | ||
17505c5c | 505 | /* Move the queued relocs into the given section. */ |
7920ce38 | 506 | |
17505c5c NC |
507 | static void |
508 | pe_ILF_save_relocs (pe_ILF_vars * vars, | |
509 | asection_ptr sec) | |
510 | { | |
511 | /* Make sure that there is somewhere to store the internal relocs. */ | |
512 | if (coff_section_data (vars->abfd, sec) == NULL) | |
513 | /* We should probably return an error indication here. */ | |
514 | abort (); | |
515 | ||
516 | coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab; | |
17505c5c NC |
517 | |
518 | sec->relocation = vars->reltab; | |
519 | sec->reloc_count = vars->relcount; | |
520 | sec->flags |= SEC_RELOC; | |
521 | ||
522 | vars->reltab += vars->relcount; | |
523 | vars->int_reltab += vars->relcount; | |
524 | vars->relcount = 0; | |
525 | ||
dc810e39 | 526 | BFD_ASSERT ((bfd_byte *) vars->int_reltab < (bfd_byte *) vars->string_table); |
17505c5c NC |
527 | } |
528 | ||
529 | /* Create a global symbol and add it to the relevant tables. */ | |
7920ce38 | 530 | |
17505c5c NC |
531 | static void |
532 | pe_ILF_make_a_symbol (pe_ILF_vars * vars, | |
533 | const char * prefix, | |
534 | const char * symbol_name, | |
535 | asection_ptr section, | |
536 | flagword extra_flags) | |
537 | { | |
538 | coff_symbol_type * sym; | |
539 | combined_entry_type * ent; | |
540 | SYMENT * esym; | |
541 | unsigned short sclass; | |
542 | ||
543 | if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 544 | sclass = C_STAT; |
17505c5c NC |
545 | else |
546 | sclass = C_EXT; | |
ee91ed79 KH |
547 | |
548 | #ifdef THUMBPEMAGIC | |
17505c5c NC |
549 | if (vars->magic == THUMBPEMAGIC) |
550 | { | |
551 | if (extra_flags & BSF_FUNCTION) | |
552 | sclass = C_THUMBEXTFUNC; | |
553 | else if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 554 | sclass = C_THUMBSTAT; |
17505c5c NC |
555 | else |
556 | sclass = C_THUMBEXT; | |
557 | } | |
558 | #endif | |
559 | ||
560 | BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS); | |
ee91ed79 | 561 | |
17505c5c NC |
562 | sym = vars->sym_ptr; |
563 | ent = vars->native_ptr; | |
564 | esym = vars->esym_ptr; | |
565 | ||
566 | /* Copy the symbol's name into the string table. */ | |
9c26a640 | 567 | int len = sprintf (vars->string_ptr, "%s%s", prefix, symbol_name); |
17505c5c | 568 | |
10821322 | 569 | if (section == NULL) |
45dfa85a | 570 | section = bfd_und_section_ptr; |
ee91ed79 | 571 | |
17505c5c | 572 | /* Initialise the external symbol. */ |
dc810e39 AM |
573 | H_PUT_32 (vars->abfd, vars->string_ptr - vars->string_table, |
574 | esym->e.e.e_offset); | |
575 | H_PUT_16 (vars->abfd, section->target_index, esym->e_scnum); | |
17505c5c NC |
576 | esym->e_sclass[0] = sclass; |
577 | ||
578 | /* The following initialisations are unnecessary - the memory is | |
579 | zero initialised. They are just kept here as reminders. */ | |
ee91ed79 | 580 | |
17505c5c | 581 | /* Initialise the internal symbol structure. */ |
07d6d2b8 AM |
582 | ent->u.syment.n_sclass = sclass; |
583 | ent->u.syment.n_scnum = section->target_index; | |
60159858 | 584 | ent->u.syment._n._n_n._n_offset = (uintptr_t) sym; |
0a1b45a2 | 585 | ent->is_sym = true; |
ee91ed79 | 586 | |
17505c5c NC |
587 | sym->symbol.the_bfd = vars->abfd; |
588 | sym->symbol.name = vars->string_ptr; | |
589 | sym->symbol.flags = BSF_EXPORT | BSF_GLOBAL | extra_flags; | |
590 | sym->symbol.section = section; | |
07d6d2b8 | 591 | sym->native = ent; |
ee91ed79 | 592 | |
17505c5c | 593 | * vars->table_ptr = vars->sym_index; |
11c8a8d1 | 594 | * vars->sym_ptr_ptr = sym; |
ee91ed79 | 595 | |
17505c5c NC |
596 | /* Adjust pointers for the next symbol. */ |
597 | vars->sym_index ++; | |
598 | vars->sym_ptr ++; | |
11c8a8d1 | 599 | vars->sym_ptr_ptr ++; |
17505c5c NC |
600 | vars->table_ptr ++; |
601 | vars->native_ptr ++; | |
602 | vars->esym_ptr ++; | |
9c26a640 | 603 | vars->string_ptr += len + 1; |
17505c5c NC |
604 | |
605 | BFD_ASSERT (vars->string_ptr < vars->end_string_ptr); | |
606 | } | |
607 | ||
608 | /* Create a section. */ | |
7920ce38 | 609 | |
17505c5c NC |
610 | static asection_ptr |
611 | pe_ILF_make_a_section (pe_ILF_vars * vars, | |
612 | const char * name, | |
613 | unsigned int size, | |
614 | flagword extra_flags) | |
615 | { | |
616 | asection_ptr sec; | |
617 | flagword flags; | |
67580036 | 618 | intptr_t alignment; |
ee91ed79 | 619 | |
17505c5c NC |
620 | sec = bfd_make_section_old_way (vars->abfd, name); |
621 | if (sec == NULL) | |
622 | return NULL; | |
ee91ed79 | 623 | |
17505c5c | 624 | flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY; |
ee91ed79 | 625 | |
fd361982 | 626 | bfd_set_section_flags (sec, flags | extra_flags); |
ee91ed79 | 627 | |
fd361982 | 628 | bfd_set_section_alignment (sec, 2); |
ee91ed79 | 629 | |
17505c5c NC |
630 | /* Check that we will not run out of space. */ |
631 | BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 632 | |
17505c5c NC |
633 | /* Set the section size and contents. The actual |
634 | contents are filled in by our parent. */ | |
fd361982 | 635 | bfd_set_section_size (sec, (bfd_size_type) size); |
17505c5c NC |
636 | sec->contents = vars->data; |
637 | sec->target_index = vars->sec_index ++; | |
638 | ||
639 | /* Advance data pointer in the vars structure. */ | |
640 | vars->data += size; | |
ee91ed79 | 641 | |
17505c5c NC |
642 | /* Skip the padding byte if it was not needed. |
643 | The logic here is that if the string length is odd, | |
644 | then the entire string length, including the null byte, | |
645 | is even and so the extra, padding byte, is not needed. */ | |
646 | if (size & 1) | |
647 | vars->data --; | |
ee91ed79 | 648 | |
4b0e8a5f | 649 | /* PR 18758: See note in pe_ILF_buid_a_bfd. We must make sure that we |
67580036 AM |
650 | preserve host alignment requirements. The BFD_ASSERTs in this |
651 | functions will warn us if we run out of room, but we should | |
652 | already have enough padding built in to ILF_DATA_SIZE. */ | |
653 | #if GCC_VERSION >= 3000 | |
654 | alignment = __alignof__ (struct coff_section_tdata); | |
655 | #else | |
656 | alignment = 8; | |
4b0e8a5f | 657 | #endif |
67580036 AM |
658 | vars->data |
659 | = (bfd_byte *) (((intptr_t) vars->data + alignment - 1) & -alignment); | |
660 | ||
17505c5c NC |
661 | /* Create a coff_section_tdata structure for our use. */ |
662 | sec->used_by_bfd = (struct coff_section_tdata *) vars->data; | |
663 | vars->data += sizeof (struct coff_section_tdata); | |
664 | ||
665 | BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 666 | |
17505c5c NC |
667 | /* Create a symbol to refer to this section. */ |
668 | pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL); | |
669 | ||
11c8a8d1 | 670 | /* Cache the index to the symbol in the coff_section_data structure. */ |
17505c5c | 671 | coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1; |
ee91ed79 | 672 | |
17505c5c NC |
673 | return sec; |
674 | } | |
675 | ||
676 | /* This structure contains the code that goes into the .text section | |
677 | in order to perform a jump into the DLL lookup table. The entries | |
678 | in the table are index by the magic number used to represent the | |
679 | machine type in the PE file. The contents of the data[] arrays in | |
680 | these entries are stolen from the jtab[] arrays in ld/pe-dll.c. | |
681 | The SIZE field says how many bytes in the DATA array are actually | |
682 | used. The OFFSET field says where in the data array the address | |
683 | of the .idata$5 section should be placed. */ | |
684 | #define MAX_TEXT_SECTION_SIZE 32 | |
685 | ||
686 | typedef struct | |
687 | { | |
688 | unsigned short magic; | |
689 | unsigned char data[MAX_TEXT_SECTION_SIZE]; | |
690 | unsigned int size; | |
691 | unsigned int offset; | |
692 | } | |
693 | jump_table; | |
694 | ||
cf7a3c01 | 695 | static const jump_table jtab[] = |
17505c5c NC |
696 | { |
697 | #ifdef I386MAGIC | |
698 | { I386MAGIC, | |
699 | { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, | |
700 | 8, 2 | |
701 | }, | |
702 | #endif | |
ee91ed79 | 703 | |
99ad8390 NC |
704 | #ifdef AMD64MAGIC |
705 | { AMD64MAGIC, | |
706 | { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, | |
707 | 8, 2 | |
708 | }, | |
709 | #endif | |
710 | ||
17505c5c | 711 | #ifdef MC68MAGIC |
99ad8390 NC |
712 | { MC68MAGIC, |
713 | { /* XXX fill me in */ }, | |
714 | 0, 0 | |
715 | }, | |
17505c5c | 716 | #endif |
99ad8390 | 717 | |
17505c5c NC |
718 | #ifdef MIPS_ARCH_MAGIC_WINCE |
719 | { MIPS_ARCH_MAGIC_WINCE, | |
720 | { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, | |
721 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 }, | |
722 | 16, 0 | |
723 | }, | |
724 | #endif | |
ee91ed79 | 725 | |
17505c5c NC |
726 | #ifdef SH_ARCH_MAGIC_WINCE |
727 | { SH_ARCH_MAGIC_WINCE, | |
728 | { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, | |
729 | 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 }, | |
730 | 12, 8 | |
731 | }, | |
732 | #endif | |
ee91ed79 | 733 | |
b69c9d41 TC |
734 | #ifdef AARCH64MAGIC |
735 | /* We don't currently support jumping to DLLs, so if | |
736 | someone does try emit a runtime trap. Through UDF #0. */ | |
737 | { AARCH64MAGIC, | |
738 | { 0x00, 0x00, 0x00, 0x00 }, | |
739 | 4, 0 | |
740 | }, | |
741 | ||
742 | #endif | |
743 | ||
17505c5c NC |
744 | #ifdef ARMPEMAGIC |
745 | { ARMPEMAGIC, | |
746 | { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0, | |
747 | 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00}, | |
748 | 12, 8 | |
749 | }, | |
750 | #endif | |
ee91ed79 | 751 | |
17505c5c NC |
752 | #ifdef THUMBPEMAGIC |
753 | { THUMBPEMAGIC, | |
754 | { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46, | |
755 | 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 }, | |
756 | 16, 12 | |
757 | }, | |
758 | #endif | |
31f60095 YT |
759 | |
760 | #ifdef LOONGARCH64MAGIC | |
761 | /* We don't currently support jumping to DLLs, so if | |
762 | someone does try emit a runtime trap. Through BREAK 0. */ | |
763 | { LOONGARCH64MAGIC, | |
764 | { 0x00, 0x00, 0x2a, 0x00 }, | |
765 | 4, 0 | |
766 | }, | |
767 | ||
1b183017 AS |
768 | #endif |
769 | ||
770 | #ifdef RISCV64MAGIC | |
771 | /* We don't currently support jumping to DLLs, so if | |
772 | someone does try emit a runtime trap. Through EBREAK. */ | |
773 | { RISCV64MAGIC, | |
774 | { 0x73, 0x00, 0x10, 0x00 }, | |
775 | 4, 0 | |
776 | }, | |
777 | ||
31f60095 YT |
778 | #endif |
779 | ||
17505c5c NC |
780 | { 0, { 0 }, 0, 0 } |
781 | }; | |
782 | ||
783 | #ifndef NUM_ENTRIES | |
784 | #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0]) | |
785 | #endif | |
786 | ||
787 | /* Build a full BFD from the information supplied in a ILF object. */ | |
7920ce38 | 788 | |
0a1b45a2 | 789 | static bool |
07d6d2b8 | 790 | pe_ILF_build_a_bfd (bfd * abfd, |
dc810e39 | 791 | unsigned int magic, |
07d6d2b8 AM |
792 | char * symbol_name, |
793 | char * source_dll, | |
17505c5c NC |
794 | unsigned int ordinal, |
795 | unsigned int types) | |
ee91ed79 | 796 | { |
07d6d2b8 AM |
797 | bfd_byte * ptr; |
798 | pe_ILF_vars vars; | |
17505c5c | 799 | struct internal_filehdr internal_f; |
07d6d2b8 AM |
800 | unsigned int import_type; |
801 | unsigned int import_name_type; | |
802 | asection_ptr id4, id5, id6 = NULL, text = NULL; | |
803 | coff_symbol_type ** imp_sym; | |
804 | unsigned int imp_index; | |
67580036 | 805 | intptr_t alignment; |
17505c5c | 806 | |
17505c5c NC |
807 | /* Decode and verify the types field of the ILF structure. */ |
808 | import_type = types & 0x3; | |
809 | import_name_type = (types & 0x1c) >> 2; | |
810 | ||
811 | switch (import_type) | |
812 | { | |
813 | case IMPORT_CODE: | |
814 | case IMPORT_DATA: | |
815 | break; | |
ee91ed79 | 816 | |
17505c5c NC |
817 | case IMPORT_CONST: |
818 | /* XXX code yet to be written. */ | |
695344c0 | 819 | /* xgettext:c-format */ |
59d08d6c | 820 | _bfd_error_handler (_("%pB: unhandled import type; %x"), |
d003868e | 821 | abfd, import_type); |
0a1b45a2 | 822 | return false; |
ee91ed79 | 823 | |
17505c5c | 824 | default: |
695344c0 | 825 | /* xgettext:c-format */ |
59d08d6c | 826 | _bfd_error_handler (_("%pB: unrecognized import type; %x"), |
d003868e | 827 | abfd, import_type); |
0a1b45a2 | 828 | return false; |
17505c5c NC |
829 | } |
830 | ||
831 | switch (import_name_type) | |
832 | { | |
833 | case IMPORT_ORDINAL: | |
834 | case IMPORT_NAME: | |
835 | case IMPORT_NAME_NOPREFIX: | |
836 | case IMPORT_NAME_UNDECORATE: | |
837 | break; | |
ee91ed79 | 838 | |
17505c5c | 839 | default: |
695344c0 | 840 | /* xgettext:c-format */ |
59d08d6c | 841 | _bfd_error_handler (_("%pB: unrecognized import name type; %x"), |
d003868e | 842 | abfd, import_name_type); |
0a1b45a2 | 843 | return false; |
17505c5c NC |
844 | } |
845 | ||
846 | /* Initialise local variables. | |
ee91ed79 | 847 | |
17505c5c NC |
848 | Note these are kept in a structure rather than being |
849 | declared as statics since bfd frowns on global variables. | |
ee91ed79 | 850 | |
17505c5c NC |
851 | We are going to construct the contents of the BFD in memory, |
852 | so allocate all the space that we will need right now. */ | |
493152cb AM |
853 | vars.bim |
854 | = (struct bfd_in_memory *) bfd_malloc ((bfd_size_type) sizeof (*vars.bim)); | |
855 | if (vars.bim == NULL) | |
0a1b45a2 | 856 | return false; |
17505c5c | 857 | |
493152cb | 858 | ptr = (bfd_byte *) bfd_zmalloc ((bfd_size_type) ILF_DATA_SIZE); |
17505c5c NC |
859 | vars.bim->buffer = ptr; |
860 | vars.bim->size = ILF_DATA_SIZE; | |
493152cb AM |
861 | if (ptr == NULL) |
862 | goto error_return; | |
ee91ed79 | 863 | |
17505c5c NC |
864 | /* Initialise the pointers to regions of the memory and the |
865 | other contents of the pe_ILF_vars structure as well. */ | |
866 | vars.sym_cache = (coff_symbol_type *) ptr; | |
867 | vars.sym_ptr = (coff_symbol_type *) ptr; | |
868 | vars.sym_index = 0; | |
869 | ptr += SIZEOF_ILF_SYMS; | |
ee91ed79 | 870 | |
17505c5c NC |
871 | vars.sym_table = (unsigned int *) ptr; |
872 | vars.table_ptr = (unsigned int *) ptr; | |
873 | ptr += SIZEOF_ILF_SYM_TABLE; | |
874 | ||
875 | vars.native_syms = (combined_entry_type *) ptr; | |
876 | vars.native_ptr = (combined_entry_type *) ptr; | |
877 | ptr += SIZEOF_ILF_NATIVE_SYMS; | |
11c8a8d1 NC |
878 | |
879 | vars.sym_ptr_table = (coff_symbol_type **) ptr; | |
880 | vars.sym_ptr_ptr = (coff_symbol_type **) ptr; | |
881 | ptr += SIZEOF_ILF_SYM_PTR_TABLE; | |
ee91ed79 | 882 | |
17505c5c NC |
883 | vars.esym_table = (SYMENT *) ptr; |
884 | vars.esym_ptr = (SYMENT *) ptr; | |
885 | ptr += SIZEOF_ILF_EXT_SYMS; | |
ee91ed79 | 886 | |
17505c5c NC |
887 | vars.reltab = (arelent *) ptr; |
888 | vars.relcount = 0; | |
889 | ptr += SIZEOF_ILF_RELOCS; | |
890 | ||
891 | vars.int_reltab = (struct internal_reloc *) ptr; | |
892 | ptr += SIZEOF_ILF_INT_RELOCS; | |
893 | ||
f075ee0c AM |
894 | vars.string_table = (char *) ptr; |
895 | vars.string_ptr = (char *) ptr + STRING_SIZE_SIZE; | |
17505c5c | 896 | ptr += SIZEOF_ILF_STRINGS; |
f075ee0c | 897 | vars.end_string_ptr = (char *) ptr; |
ee91ed79 | 898 | |
17505c5c NC |
899 | /* The remaining space in bim->buffer is used |
900 | by the pe_ILF_make_a_section() function. */ | |
67580036 | 901 | |
4b0e8a5f | 902 | /* PR 18758: Make sure that the data area is sufficiently aligned for |
67580036 AM |
903 | struct coff_section_tdata. __alignof__ is a gcc extension, hence |
904 | the test of GCC_VERSION. For other compilers we assume 8 byte | |
905 | alignment. */ | |
906 | #if GCC_VERSION >= 3000 | |
907 | alignment = __alignof__ (struct coff_section_tdata); | |
908 | #else | |
909 | alignment = 8; | |
4b0e8a5f | 910 | #endif |
67580036 | 911 | ptr = (bfd_byte *) (((intptr_t) ptr + alignment - 1) & -alignment); |
1b786873 | 912 | |
17505c5c NC |
913 | vars.data = ptr; |
914 | vars.abfd = abfd; | |
915 | vars.sec_index = 0; | |
916 | vars.magic = magic; | |
ee91ed79 | 917 | |
17505c5c | 918 | /* Create the initial .idata$<n> sections: |
11c8a8d1 | 919 | [.idata$2: Import Directory Table -- not needed] |
17505c5c NC |
920 | .idata$4: Import Lookup Table |
921 | .idata$5: Import Address Table | |
922 | ||
923 | Note we do not create a .idata$3 section as this is | |
924 | created for us by the linker script. */ | |
17505c5c NC |
925 | id4 = pe_ILF_make_a_section (& vars, ".idata$4", SIZEOF_IDATA4, 0); |
926 | id5 = pe_ILF_make_a_section (& vars, ".idata$5", SIZEOF_IDATA5, 0); | |
11c8a8d1 | 927 | if (id4 == NULL || id5 == NULL) |
493152cb | 928 | goto error_return; |
ee91ed79 | 929 | |
17505c5c NC |
930 | /* Fill in the contents of these sections. */ |
931 | if (import_name_type == IMPORT_ORDINAL) | |
932 | { | |
933 | if (ordinal == 0) | |
52c4f3bd NC |
934 | /* See PR 20907 for a reproducer. */ |
935 | goto error_return; | |
ee91ed79 | 936 | |
1b183017 | 937 | #if defined(COFF_WITH_pex64) || defined(COFF_WITH_peAArch64) || defined(COFF_WITH_peLoongArch64) || defined (COFF_WITH_peRiscV64) |
99ad8390 NC |
938 | ((unsigned int *) id4->contents)[0] = ordinal; |
939 | ((unsigned int *) id4->contents)[1] = 0x80000000; | |
940 | ((unsigned int *) id5->contents)[0] = ordinal; | |
941 | ((unsigned int *) id5->contents)[1] = 0x80000000; | |
942 | #else | |
fc633e5b AM |
943 | * (unsigned int *) id4->contents = ordinal | 0x80000000; |
944 | * (unsigned int *) id5->contents = ordinal | 0x80000000; | |
99ad8390 | 945 | #endif |
17505c5c NC |
946 | } |
947 | else | |
948 | { | |
949 | char * symbol; | |
f67e617a | 950 | unsigned int len; |
ee91ed79 | 951 | |
17505c5c NC |
952 | /* Create .idata$6 - the Hint Name Table. */ |
953 | id6 = pe_ILF_make_a_section (& vars, ".idata$6", SIZEOF_IDATA6, 0); | |
954 | if (id6 == NULL) | |
493152cb | 955 | goto error_return; |
17505c5c NC |
956 | |
957 | /* If necessary, trim the import symbol name. */ | |
958 | symbol = symbol_name; | |
959 | ||
cabd4ccc DS |
960 | /* As used by MS compiler, '_', '@', and '?' are alternative |
961 | forms of USER_LABEL_PREFIX, with '?' for c++ mangled names, | |
962 | '@' used for fastcall (in C), '_' everywhere else. Only one | |
963 | of these is used for a symbol. We strip this leading char for | |
964 | IMPORT_NAME_NOPREFIX and IMPORT_NAME_UNDECORATE as per the | |
965 | PE COFF 6.0 spec (section 8.3, Import Name Type). */ | |
966 | ||
17505c5c | 967 | if (import_name_type != IMPORT_NAME) |
87cc7031 | 968 | { |
cabd4ccc | 969 | char c = symbol[0]; |
68ffbac6 | 970 | |
e7771322 KT |
971 | /* Check that we don't remove for targets with empty |
972 | USER_LABEL_PREFIX the leading underscore. */ | |
973 | if ((c == '_' && abfd->xvec->symbol_leading_char != 0) | |
974 | || c == '@' || c == '?') | |
cabd4ccc | 975 | symbol++; |
87cc7031 | 976 | } |
68ffbac6 | 977 | |
f67e617a | 978 | len = strlen (symbol); |
17505c5c NC |
979 | if (import_name_type == IMPORT_NAME_UNDECORATE) |
980 | { | |
f67e617a NC |
981 | /* Truncate at the first '@'. */ |
982 | char *at = strchr (symbol, '@'); | |
17505c5c | 983 | |
f67e617a NC |
984 | if (at != NULL) |
985 | len = at - symbol; | |
17505c5c | 986 | } |
ee91ed79 | 987 | |
11c8a8d1 NC |
988 | id6->contents[0] = ordinal & 0xff; |
989 | id6->contents[1] = ordinal >> 8; | |
ee91ed79 | 990 | |
f67e617a NC |
991 | memcpy ((char *) id6->contents + 2, symbol, len); |
992 | id6->contents[len + 2] = '\0'; | |
17505c5c NC |
993 | } |
994 | ||
17505c5c NC |
995 | if (import_name_type != IMPORT_ORDINAL) |
996 | { | |
dc810e39 AM |
997 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6); |
998 | pe_ILF_save_relocs (&vars, id4); | |
ee91ed79 | 999 | |
dc810e39 AM |
1000 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6); |
1001 | pe_ILF_save_relocs (&vars, id5); | |
17505c5c NC |
1002 | } |
1003 | ||
655ed9ea NS |
1004 | /* Create an import symbol. */ |
1005 | pe_ILF_make_a_symbol (& vars, "__imp_", symbol_name, id5, 0); | |
1006 | imp_sym = vars.sym_ptr_ptr - 1; | |
1007 | imp_index = vars.sym_index - 1; | |
1008 | ||
17505c5c NC |
1009 | /* Create extra sections depending upon the type of import we are dealing with. */ |
1010 | switch (import_type) | |
1011 | { | |
1012 | int i; | |
ee91ed79 | 1013 | |
17505c5c | 1014 | case IMPORT_CODE: |
655ed9ea | 1015 | /* CODE functions are special, in that they get a trampoline that |
07d6d2b8 | 1016 | jumps to the main import symbol. Create a .text section to hold it. |
17505c5c NC |
1017 | First we need to look up its contents in the jump table. */ |
1018 | for (i = NUM_ENTRIES (jtab); i--;) | |
1019 | { | |
1020 | if (jtab[i].size == 0) | |
1021 | continue; | |
1022 | if (jtab[i].magic == magic) | |
1023 | break; | |
1024 | } | |
1025 | /* If we did not find a matching entry something is wrong. */ | |
1026 | if (i < 0) | |
1027 | abort (); | |
1028 | ||
1029 | /* Create the .text section. */ | |
1030 | text = pe_ILF_make_a_section (& vars, ".text", jtab[i].size, SEC_CODE); | |
1031 | if (text == NULL) | |
493152cb | 1032 | goto error_return; |
17505c5c NC |
1033 | |
1034 | /* Copy in the jump code. */ | |
1035 | memcpy (text->contents, jtab[i].data, jtab[i].size); | |
1036 | ||
1037 | /* Create a reloc for the data in the text section. */ | |
ee91ed79 | 1038 | #ifdef MIPS_ARCH_MAGIC_WINCE |
17505c5c NC |
1039 | if (magic == MIPS_ARCH_MAGIC_WINCE) |
1040 | { | |
dc810e39 | 1041 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 0, BFD_RELOC_HI16_S, |
fc0a2244 | 1042 | (struct bfd_symbol **) imp_sym, |
dc810e39 AM |
1043 | imp_index); |
1044 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_LO16, text); | |
1045 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 4, BFD_RELOC_LO16, | |
fc0a2244 | 1046 | (struct bfd_symbol **) imp_sym, |
dc810e39 | 1047 | imp_index); |
17505c5c NC |
1048 | } |
1049 | else | |
27aaeda0 NC |
1050 | #endif |
1051 | #ifdef AMD64MAGIC | |
1052 | if (magic == AMD64MAGIC) | |
1053 | { | |
1054 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) jtab[i].offset, | |
1055 | BFD_RELOC_32_PCREL, (asymbol **) imp_sym, | |
1056 | imp_index); | |
1057 | } | |
1058 | else | |
17505c5c | 1059 | #endif |
dc810e39 AM |
1060 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) jtab[i].offset, |
1061 | BFD_RELOC_32, (asymbol **) imp_sym, | |
1062 | imp_index); | |
ee91ed79 | 1063 | |
17505c5c NC |
1064 | pe_ILF_save_relocs (& vars, text); |
1065 | break; | |
1066 | ||
1067 | case IMPORT_DATA: | |
1068 | break; | |
1069 | ||
1070 | default: | |
1071 | /* XXX code not yet written. */ | |
1072 | abort (); | |
1073 | } | |
ee91ed79 | 1074 | |
447d0669 AM |
1075 | /* Now create a symbol describing the imported value. */ |
1076 | switch (import_type) | |
1077 | { | |
1078 | case IMPORT_CODE: | |
1079 | pe_ILF_make_a_symbol (& vars, "", symbol_name, text, | |
1080 | BSF_NOT_AT_END | BSF_FUNCTION); | |
1081 | ||
1082 | break; | |
1083 | ||
1084 | case IMPORT_DATA: | |
1085 | /* Nothing to do here. */ | |
1086 | break; | |
1087 | ||
1088 | default: | |
1089 | /* XXX code not yet written. */ | |
1090 | abort (); | |
1091 | } | |
1092 | ||
1093 | /* Create an import symbol for the DLL, without the .dll suffix. */ | |
1094 | ptr = (bfd_byte *) strrchr (source_dll, '.'); | |
1095 | if (ptr) | |
1096 | * ptr = 0; | |
1097 | pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0); | |
1098 | if (ptr) | |
1099 | * ptr = '.'; | |
1100 | ||
17505c5c NC |
1101 | /* Initialise the bfd. */ |
1102 | memset (& internal_f, 0, sizeof (internal_f)); | |
ee91ed79 | 1103 | |
17505c5c NC |
1104 | internal_f.f_magic = magic; |
1105 | internal_f.f_symptr = 0; | |
1106 | internal_f.f_nsyms = 0; | |
1107 | internal_f.f_flags = F_AR32WR | F_LNNO; /* XXX is this correct ? */ | |
ee91ed79 | 1108 | |
dc810e39 | 1109 | if ( ! bfd_set_start_address (abfd, (bfd_vma) 0) |
17505c5c | 1110 | || ! bfd_coff_set_arch_mach_hook (abfd, & internal_f)) |
493152cb | 1111 | goto error_return; |
17505c5c | 1112 | |
7920ce38 | 1113 | if (bfd_coff_mkobject_hook (abfd, (void *) & internal_f, NULL) == NULL) |
493152cb | 1114 | goto error_return; |
17505c5c | 1115 | |
10df41b1 | 1116 | obj_pe (abfd) = true; |
ee91ed79 | 1117 | #ifdef THUMBPEMAGIC |
17505c5c NC |
1118 | if (vars.magic == THUMBPEMAGIC) |
1119 | /* Stop some linker warnings about thumb code not supporting interworking. */ | |
1120 | coff_data (abfd)->flags |= F_INTERWORK | F_INTERWORK_SET; | |
1121 | #endif | |
ee91ed79 | 1122 | |
17505c5c NC |
1123 | /* Switch from file contents to memory contents. */ |
1124 | bfd_cache_close (abfd); | |
1125 | ||
7920ce38 | 1126 | abfd->iostream = (void *) vars.bim; |
447d0669 | 1127 | abfd->flags |= BFD_IN_MEMORY | HAS_SYMS; |
65077aa8 | 1128 | abfd->iovec = &_bfd_memory_iovec; |
17505c5c | 1129 | abfd->where = 0; |
65077aa8 | 1130 | abfd->origin = 0; |
87d20657 | 1131 | abfd->size = 0; |
17505c5c NC |
1132 | obj_sym_filepos (abfd) = 0; |
1133 | ||
17505c5c NC |
1134 | /* Point the bfd at the symbol table. */ |
1135 | obj_symbols (abfd) = vars.sym_cache; | |
ed48ec2e | 1136 | abfd->symcount = vars.sym_index; |
ee91ed79 | 1137 | |
17505c5c NC |
1138 | obj_raw_syments (abfd) = vars.native_syms; |
1139 | obj_raw_syment_count (abfd) = vars.sym_index; | |
1140 | ||
7920ce38 | 1141 | obj_coff_external_syms (abfd) = (void *) vars.esym_table; |
0a1b45a2 | 1142 | obj_coff_keep_syms (abfd) = true; |
ee91ed79 | 1143 | |
17505c5c NC |
1144 | obj_convert (abfd) = vars.sym_table; |
1145 | obj_conv_table_size (abfd) = vars.sym_index; | |
ee91ed79 | 1146 | |
17505c5c | 1147 | obj_coff_strings (abfd) = vars.string_table; |
317e47ee | 1148 | obj_coff_strings_len (abfd) = vars.string_ptr - vars.string_table; |
0a1b45a2 | 1149 | obj_coff_keep_strings (abfd) = true; |
17505c5c | 1150 | |
0a1b45a2 | 1151 | return true; |
493152cb AM |
1152 | |
1153 | error_return: | |
c9594989 | 1154 | free (vars.bim->buffer); |
493152cb | 1155 | free (vars.bim); |
0a1b45a2 | 1156 | return false; |
17505c5c NC |
1157 | } |
1158 | ||
f656f9c7 AM |
1159 | /* Cleanup function, returned from check_format hook. */ |
1160 | ||
1161 | static void | |
1162 | pe_ILF_cleanup (bfd *abfd) | |
1163 | { | |
26d0081b AM |
1164 | coff_object_cleanup (abfd); |
1165 | ||
f656f9c7 AM |
1166 | struct bfd_in_memory *bim = abfd->iostream; |
1167 | free (bim->buffer); | |
1168 | free (bim); | |
1169 | abfd->iostream = NULL; | |
1170 | } | |
1171 | ||
447d0669 | 1172 | /* We have detected an Import Library Format archive element. |
17505c5c | 1173 | Decode the element and return the appropriate target. */ |
7920ce38 | 1174 | |
cb001c0d | 1175 | static bfd_cleanup |
17505c5c NC |
1176 | pe_ILF_object_p (bfd * abfd) |
1177 | { | |
07d6d2b8 AM |
1178 | bfd_byte buffer[14]; |
1179 | bfd_byte * ptr; | |
1180 | char * symbol_name; | |
1181 | char * source_dll; | |
1182 | unsigned int machine; | |
1183 | bfd_size_type size; | |
1184 | unsigned int ordinal; | |
1185 | unsigned int types; | |
1186 | unsigned int magic; | |
ee91ed79 | 1187 | |
167ad85b | 1188 | /* Upon entry the first six bytes of the ILF header have |
447d0669 | 1189 | already been read. Now read the rest of the header. */ |
226f9f4f | 1190 | if (bfd_read (buffer, 14, abfd) != 14) |
17505c5c NC |
1191 | return NULL; |
1192 | ||
1193 | ptr = buffer; | |
ee91ed79 | 1194 | |
dc810e39 | 1195 | machine = H_GET_16 (abfd, ptr); |
17505c5c NC |
1196 | ptr += 2; |
1197 | ||
1198 | /* Check that the machine type is recognised. */ | |
1199 | magic = 0; | |
ee91ed79 | 1200 | |
17505c5c NC |
1201 | switch (machine) |
1202 | { | |
1203 | case IMAGE_FILE_MACHINE_UNKNOWN: | |
1204 | case IMAGE_FILE_MACHINE_ALPHA: | |
1205 | case IMAGE_FILE_MACHINE_ALPHA64: | |
1206 | case IMAGE_FILE_MACHINE_IA64: | |
1207 | break; | |
ee91ed79 | 1208 | |
17505c5c NC |
1209 | case IMAGE_FILE_MACHINE_I386: |
1210 | #ifdef I386MAGIC | |
1211 | magic = I386MAGIC; | |
1212 | #endif | |
1213 | break; | |
ee91ed79 | 1214 | |
99ad8390 NC |
1215 | case IMAGE_FILE_MACHINE_AMD64: |
1216 | #ifdef AMD64MAGIC | |
1217 | magic = AMD64MAGIC; | |
1218 | #endif | |
1219 | break; | |
1220 | ||
17505c5c NC |
1221 | case IMAGE_FILE_MACHINE_R3000: |
1222 | case IMAGE_FILE_MACHINE_R4000: | |
1223 | case IMAGE_FILE_MACHINE_R10000: | |
ee91ed79 | 1224 | |
17505c5c NC |
1225 | case IMAGE_FILE_MACHINE_MIPS16: |
1226 | case IMAGE_FILE_MACHINE_MIPSFPU: | |
1227 | case IMAGE_FILE_MACHINE_MIPSFPU16: | |
1228 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
1229 | magic = MIPS_ARCH_MAGIC_WINCE; | |
1230 | #endif | |
1231 | break; | |
ee91ed79 | 1232 | |
17505c5c NC |
1233 | case IMAGE_FILE_MACHINE_SH3: |
1234 | case IMAGE_FILE_MACHINE_SH4: | |
1235 | #ifdef SH_ARCH_MAGIC_WINCE | |
1236 | magic = SH_ARCH_MAGIC_WINCE; | |
1237 | #endif | |
1238 | break; | |
ee91ed79 | 1239 | |
17505c5c NC |
1240 | case IMAGE_FILE_MACHINE_ARM: |
1241 | #ifdef ARMPEMAGIC | |
1242 | magic = ARMPEMAGIC; | |
ee91ed79 | 1243 | #endif |
17505c5c | 1244 | break; |
ee91ed79 | 1245 | |
b69c9d41 TC |
1246 | case IMAGE_FILE_MACHINE_ARM64: |
1247 | #ifdef AARCH64MAGIC | |
1248 | magic = AARCH64MAGIC; | |
1249 | #endif | |
1250 | break; | |
1251 | ||
31f60095 YT |
1252 | case IMAGE_FILE_MACHINE_LOONGARCH64: |
1253 | #ifdef LOONGARCH64MAGIC | |
1254 | magic = LOONGARCH64MAGIC; | |
1255 | #endif | |
1256 | break; | |
1257 | ||
1b183017 AS |
1258 | case IMAGE_FILE_MACHINE_RISCV64: |
1259 | #ifdef RISCV64MAGIC | |
1260 | magic = RISCV64MAGIC; | |
1261 | #endif | |
1262 | break; | |
1263 | ||
17505c5c NC |
1264 | case IMAGE_FILE_MACHINE_THUMB: |
1265 | #ifdef THUMBPEMAGIC | |
1266 | { | |
23ccc829 | 1267 | extern const bfd_target TARGET_LITTLE_SYM; |
ee91ed79 | 1268 | |
26bfd1c0 | 1269 | if (abfd->xvec == & TARGET_LITTLE_SYM) |
17505c5c NC |
1270 | magic = THUMBPEMAGIC; |
1271 | } | |
ee91ed79 | 1272 | #endif |
17505c5c | 1273 | break; |
ee91ed79 | 1274 | |
17505c5c NC |
1275 | case IMAGE_FILE_MACHINE_POWERPC: |
1276 | /* We no longer support PowerPC. */ | |
1277 | default: | |
1278 | _bfd_error_handler | |
695344c0 | 1279 | /* xgettext:c-format */ |
59d08d6c | 1280 | (_("%pB: unrecognised machine type (0x%x)" |
d003868e AM |
1281 | " in Import Library Format archive"), |
1282 | abfd, machine); | |
17505c5c | 1283 | bfd_set_error (bfd_error_malformed_archive); |
ee91ed79 | 1284 | |
17505c5c NC |
1285 | return NULL; |
1286 | break; | |
1287 | } | |
1288 | ||
1289 | if (magic == 0) | |
1290 | { | |
1291 | _bfd_error_handler | |
695344c0 | 1292 | /* xgettext:c-format */ |
59d08d6c | 1293 | (_("%pB: recognised but unhandled machine type (0x%x)" |
d003868e AM |
1294 | " in Import Library Format archive"), |
1295 | abfd, machine); | |
17505c5c | 1296 | bfd_set_error (bfd_error_wrong_format); |
ee91ed79 | 1297 | |
17505c5c | 1298 | return NULL; |
ee91ed79 | 1299 | } |
17505c5c NC |
1300 | |
1301 | /* We do not bother to check the date. | |
dc810e39 | 1302 | date = H_GET_32 (abfd, ptr); */ |
17505c5c | 1303 | ptr += 4; |
ee91ed79 | 1304 | |
dc810e39 | 1305 | size = H_GET_32 (abfd, ptr); |
17505c5c NC |
1306 | ptr += 4; |
1307 | ||
1308 | if (size == 0) | |
1309 | { | |
1310 | _bfd_error_handler | |
871b3ab2 | 1311 | (_("%pB: size field is zero in Import Library Format header"), abfd); |
17505c5c | 1312 | bfd_set_error (bfd_error_malformed_archive); |
ee91ed79 | 1313 | |
17505c5c NC |
1314 | return NULL; |
1315 | } | |
1316 | ||
dc810e39 | 1317 | ordinal = H_GET_16 (abfd, ptr); |
17505c5c NC |
1318 | ptr += 2; |
1319 | ||
dc810e39 | 1320 | types = H_GET_16 (abfd, ptr); |
17505c5c NC |
1321 | /* ptr += 2; */ |
1322 | ||
1323 | /* Now read in the two strings that follow. */ | |
2bb3687b | 1324 | ptr = (bfd_byte *) _bfd_alloc_and_read (abfd, size, size); |
17505c5c NC |
1325 | if (ptr == NULL) |
1326 | return NULL; | |
ee91ed79 | 1327 | |
f075ee0c | 1328 | symbol_name = (char *) ptr; |
fa6631b4 NC |
1329 | /* See PR 20905 for an example of where the strnlen is necessary. */ |
1330 | source_dll = symbol_name + strnlen (symbol_name, size - 1) + 1; | |
ee91ed79 | 1331 | |
17505c5c | 1332 | /* Verify that the strings are null terminated. */ |
f075ee0c AM |
1333 | if (ptr[size - 1] != 0 |
1334 | || (bfd_size_type) ((bfd_byte *) source_dll - ptr) >= size) | |
17505c5c NC |
1335 | { |
1336 | _bfd_error_handler | |
59d08d6c | 1337 | (_("%pB: string not null terminated in ILF object file"), abfd); |
17505c5c | 1338 | bfd_set_error (bfd_error_malformed_archive); |
487e54f2 | 1339 | bfd_release (abfd, ptr); |
17505c5c NC |
1340 | return NULL; |
1341 | } | |
ee91ed79 | 1342 | |
17505c5c NC |
1343 | /* Now construct the bfd. */ |
1344 | if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name, | |
1345 | source_dll, ordinal, types)) | |
487e54f2 AM |
1346 | { |
1347 | bfd_release (abfd, ptr); | |
1348 | return NULL; | |
1349 | } | |
ee91ed79 | 1350 | |
f656f9c7 | 1351 | return pe_ILF_cleanup; |
17505c5c NC |
1352 | } |
1353 | ||
c74f7d1c | 1354 | static void |
e6d042fe | 1355 | pe_bfd_read_buildid (bfd *abfd) |
c74f7d1c JT |
1356 | { |
1357 | pe_data_type *pe = pe_data (abfd); | |
1358 | struct internal_extra_pe_aouthdr *extra = &pe->pe_opthdr; | |
1359 | asection *section; | |
1360 | bfd_byte *data = 0; | |
1361 | bfd_size_type dataoff; | |
1362 | unsigned int i; | |
c74f7d1c JT |
1363 | bfd_vma addr = extra->DataDirectory[PE_DEBUG_DATA].VirtualAddress; |
1364 | bfd_size_type size = extra->DataDirectory[PE_DEBUG_DATA].Size; | |
1365 | ||
1366 | if (size == 0) | |
1367 | return; | |
1368 | ||
1369 | addr += extra->ImageBase; | |
1370 | ||
e6d042fe | 1371 | /* Search for the section containing the DebugDirectory. */ |
c74f7d1c JT |
1372 | for (section = abfd->sections; section != NULL; section = section->next) |
1373 | { | |
1374 | if ((addr >= section->vma) && (addr < (section->vma + section->size))) | |
07d6d2b8 | 1375 | break; |
c74f7d1c JT |
1376 | } |
1377 | ||
1378 | if (section == NULL) | |
e6d042fe NC |
1379 | return; |
1380 | ||
1381 | if (!(section->flags & SEC_HAS_CONTENTS)) | |
1382 | return; | |
c74f7d1c JT |
1383 | |
1384 | dataoff = addr - section->vma; | |
1385 | ||
0bb6961f NC |
1386 | /* PR 20605 and 22373: Make sure that the data is really there. |
1387 | Note - since we are dealing with unsigned quantities we have | |
1388 | to be careful to check for potential overflows. */ | |
e0115a84 NC |
1389 | if (dataoff >= section->size |
1390 | || size > section->size - dataoff) | |
e6d042fe | 1391 | { |
59d08d6c AM |
1392 | _bfd_error_handler |
1393 | (_("%pB: error: debug data ends beyond end of debug directory"), | |
1394 | abfd); | |
e6d042fe NC |
1395 | return; |
1396 | } | |
07d6d2b8 | 1397 | |
c74f7d1c JT |
1398 | /* Read the whole section. */ |
1399 | if (!bfd_malloc_and_get_section (abfd, section, &data)) | |
1400 | { | |
c9594989 | 1401 | free (data); |
c74f7d1c JT |
1402 | return; |
1403 | } | |
1404 | ||
1405 | /* Search for a CodeView entry in the DebugDirectory */ | |
1406 | for (i = 0; i < size / sizeof (struct external_IMAGE_DEBUG_DIRECTORY); i++) | |
1407 | { | |
1408 | struct external_IMAGE_DEBUG_DIRECTORY *ext | |
1409 | = &((struct external_IMAGE_DEBUG_DIRECTORY *)(data + dataoff))[i]; | |
1410 | struct internal_IMAGE_DEBUG_DIRECTORY idd; | |
1411 | ||
1412 | _bfd_XXi_swap_debugdir_in (abfd, ext, &idd); | |
1413 | ||
1414 | if (idd.Type == PE_IMAGE_DEBUG_TYPE_CODEVIEW) | |
07d6d2b8 AM |
1415 | { |
1416 | char buffer[256 + 1]; | |
1417 | CODEVIEW_INFO *cvinfo = (CODEVIEW_INFO *) buffer; | |
1418 | ||
1419 | /* | |
1420 | The debug entry doesn't have to have to be in a section, in which | |
1421 | case AddressOfRawData is 0, so always use PointerToRawData. | |
1422 | */ | |
1423 | if (_bfd_XXi_slurp_codeview_record (abfd, | |
1424 | (file_ptr) idd.PointerToRawData, | |
f6f30f34 | 1425 | idd.SizeOfData, cvinfo, NULL)) |
07d6d2b8 AM |
1426 | { |
1427 | struct bfd_build_id* build_id = bfd_alloc (abfd, | |
1428 | sizeof (struct bfd_build_id) + cvinfo->SignatureLength); | |
1429 | if (build_id) | |
1430 | { | |
1431 | build_id->size = cvinfo->SignatureLength; | |
1432 | memcpy(build_id->data, cvinfo->Signature, | |
1433 | cvinfo->SignatureLength); | |
1434 | abfd->build_id = build_id; | |
1435 | } | |
1436 | } | |
1437 | break; | |
1438 | } | |
c74f7d1c | 1439 | } |
f5311f25 HD |
1440 | |
1441 | free (data); | |
c74f7d1c JT |
1442 | } |
1443 | ||
cb001c0d | 1444 | static bfd_cleanup |
17505c5c | 1445 | pe_bfd_object_p (bfd * abfd) |
cb665cd3 | 1446 | { |
167ad85b | 1447 | bfd_byte buffer[6]; |
830db048 | 1448 | struct external_DOS_hdr dos_hdr; |
15e0ecd9 | 1449 | struct external_PEI_IMAGE_hdr image_hdr; |
ce63b7b3 KT |
1450 | struct internal_filehdr internal_f; |
1451 | struct internal_aouthdr internal_a; | |
806470a2 | 1452 | bfd_size_type opt_hdr_size; |
cb665cd3 | 1453 | file_ptr offset; |
cb001c0d | 1454 | bfd_cleanup result; |
cb665cd3 NC |
1455 | |
1456 | /* Detect if this a Microsoft Import Library Format element. */ | |
167ad85b | 1457 | /* First read the beginning of the header. */ |
226f9f4f AM |
1458 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
1459 | || bfd_read (buffer, 6, abfd) != 6) | |
cb665cd3 NC |
1460 | { |
1461 | if (bfd_get_error () != bfd_error_system_call) | |
1462 | bfd_set_error (bfd_error_wrong_format); | |
1463 | return NULL; | |
1464 | } | |
ee91ed79 | 1465 | |
167ad85b TG |
1466 | /* Then check the magic and the version (only 0 is supported). */ |
1467 | if (H_GET_32 (abfd, buffer) == 0xffff0000 | |
1468 | && H_GET_16 (abfd, buffer + 4) == 0) | |
17505c5c | 1469 | return pe_ILF_object_p (abfd); |
ee91ed79 | 1470 | |
226f9f4f AM |
1471 | if (bfd_seek (abfd, 0, SEEK_SET) != 0 |
1472 | || bfd_read (&dos_hdr, sizeof (dos_hdr), abfd) != sizeof (dos_hdr)) | |
cb665cd3 NC |
1473 | { |
1474 | if (bfd_get_error () != bfd_error_system_call) | |
1475 | bfd_set_error (bfd_error_wrong_format); | |
1476 | return NULL; | |
1477 | } | |
1478 | ||
15e0ecd9 L |
1479 | /* There are really two magic numbers involved; the magic number |
1480 | that says this is a NT executable (PEI) and the magic number that | |
830db048 | 1481 | determines the architecture. The former is IMAGE_DOS_SIGNATURE, stored in |
15e0ecd9 L |
1482 | the e_magic field. The latter is stored in the f_magic field. |
1483 | If the NT magic number isn't valid, the architecture magic number | |
1484 | could be mimicked by some other field (specifically, the number | |
1485 | of relocs in section 3). Since this routine can only be called | |
1486 | correctly for a PEI file, check the e_magic number here, and, if | |
1487 | it doesn't match, clobber the f_magic number so that we don't get | |
1488 | a false match. */ | |
830db048 | 1489 | if (H_GET_16 (abfd, dos_hdr.e_magic) != IMAGE_DOS_SIGNATURE) |
15e0ecd9 L |
1490 | { |
1491 | bfd_set_error (bfd_error_wrong_format); | |
1492 | return NULL; | |
1493 | } | |
cb665cd3 | 1494 | |
dc810e39 AM |
1495 | offset = H_GET_32 (abfd, dos_hdr.e_lfanew); |
1496 | if (bfd_seek (abfd, offset, SEEK_SET) != 0 | |
226f9f4f | 1497 | || bfd_read (&image_hdr, sizeof (image_hdr), abfd) != sizeof (image_hdr)) |
cb665cd3 NC |
1498 | { |
1499 | if (bfd_get_error () != bfd_error_system_call) | |
1500 | bfd_set_error (bfd_error_wrong_format); | |
1501 | return NULL; | |
1502 | } | |
1503 | ||
dc810e39 | 1504 | if (H_GET_32 (abfd, image_hdr.nt_signature) != 0x4550) |
cb665cd3 NC |
1505 | { |
1506 | bfd_set_error (bfd_error_wrong_format); | |
1507 | return NULL; | |
1508 | } | |
ee91ed79 | 1509 | |
ce63b7b3 KT |
1510 | /* Swap file header, so that we get the location for calling |
1511 | real_object_p. */ | |
36e9d67b | 1512 | bfd_coff_swap_filehdr_in (abfd, &image_hdr, &internal_f); |
ce63b7b3 KT |
1513 | |
1514 | if (! bfd_coff_bad_format_hook (abfd, &internal_f) | |
1515 | || internal_f.f_opthdr > bfd_coff_aoutsz (abfd)) | |
cb665cd3 | 1516 | { |
ce63b7b3 | 1517 | bfd_set_error (bfd_error_wrong_format); |
cb665cd3 NC |
1518 | return NULL; |
1519 | } | |
1520 | ||
70cf6834 AE |
1521 | memcpy (internal_f.pe.dos_message, dos_hdr.dos_message, |
1522 | sizeof (internal_f.pe.dos_message)); | |
1523 | ||
ce63b7b3 KT |
1524 | /* Read the optional header, which has variable size. */ |
1525 | opt_hdr_size = internal_f.f_opthdr; | |
1526 | ||
1527 | if (opt_hdr_size != 0) | |
1528 | { | |
36e9d67b | 1529 | bfd_size_type amt = opt_hdr_size; |
b6fca8a3 | 1530 | bfd_byte * opthdr; |
ce63b7b3 | 1531 | |
36e9d67b NC |
1532 | /* PR 17521 file: 230-131433-0.004. */ |
1533 | if (amt < sizeof (PEAOUTHDR)) | |
1534 | amt = sizeof (PEAOUTHDR); | |
1535 | ||
2bb3687b | 1536 | opthdr = _bfd_alloc_and_read (abfd, amt, opt_hdr_size); |
ce63b7b3 KT |
1537 | if (opthdr == NULL) |
1538 | return NULL; | |
806470a2 AM |
1539 | if (amt > opt_hdr_size) |
1540 | memset (opthdr + opt_hdr_size, 0, amt - opt_hdr_size); | |
ce63b7b3 | 1541 | |
ea4e4a19 AM |
1542 | bfd_coff_swap_aouthdr_in (abfd, opthdr, &internal_a); |
1543 | ||
1544 | struct internal_extra_pe_aouthdr *a = &internal_a.pe; | |
87a5cf5c MH |
1545 | |
1546 | #ifdef ARM | |
1547 | /* Use Subsystem to distinguish between pei-arm-little and | |
1548 | pei-arm-wince-little. */ | |
1549 | #ifdef WINCE | |
1550 | if (a->Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CE_GUI) | |
1551 | #else | |
1552 | if (a->Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CE_GUI) | |
1553 | #endif | |
1554 | { | |
1555 | bfd_set_error (bfd_error_wrong_format); | |
1556 | return NULL; | |
1557 | } | |
1558 | #endif | |
1559 | ||
ea4e4a19 AM |
1560 | if ((a->SectionAlignment & -a->SectionAlignment) != a->SectionAlignment |
1561 | || a->SectionAlignment >= 0x80000000) | |
1562 | { | |
499766a6 AM |
1563 | _bfd_error_handler (_("%pB: adjusting invalid SectionAlignment"), |
1564 | abfd); | |
ea4e4a19 AM |
1565 | a->SectionAlignment &= -a->SectionAlignment; |
1566 | if (a->SectionAlignment >= 0x80000000) | |
1567 | a->SectionAlignment = 0x40000000; | |
1568 | } | |
1569 | ||
1570 | if ((a->FileAlignment & -a->FileAlignment) != a->FileAlignment | |
1571 | || a->FileAlignment > a->SectionAlignment) | |
1572 | { | |
499766a6 AM |
1573 | _bfd_error_handler (_("%pB: adjusting invalid FileAlignment"), |
1574 | abfd); | |
ea4e4a19 AM |
1575 | a->FileAlignment &= -a->FileAlignment; |
1576 | if (a->FileAlignment > a->SectionAlignment) | |
1577 | a->FileAlignment = a->SectionAlignment; | |
1578 | } | |
ce63b7b3 | 1579 | |
ea4e4a19 | 1580 | if (a->NumberOfRvaAndSizes > IMAGE_NUMBEROF_DIRECTORY_ENTRIES) |
499766a6 | 1581 | _bfd_error_handler (_("%pB: invalid NumberOfRvaAndSizes"), abfd); |
ea4e4a19 | 1582 | } |
c74f7d1c JT |
1583 | |
1584 | result = coff_real_object_p (abfd, internal_f.f_nscns, &internal_f, | |
07d6d2b8 AM |
1585 | (opt_hdr_size != 0 |
1586 | ? &internal_a | |
1587 | : (struct internal_aouthdr *) NULL)); | |
c74f7d1c | 1588 | |
c74f7d1c JT |
1589 | if (result) |
1590 | { | |
1591 | /* Now the whole header has been processed, see if there is a build-id */ | |
1592 | pe_bfd_read_buildid(abfd); | |
1593 | } | |
1594 | ||
1595 | return result; | |
cb665cd3 NC |
1596 | } |
1597 | ||
1598 | #define coff_object_p pe_bfd_object_p | |
17505c5c | 1599 | #endif /* COFF_IMAGE_WITH_PE */ |