Commit | Line | Data |
---|---|---|
277d1b5e | 1 | /* Support for the generic parts of PE/PEI, for BFD. |
ff0c9faf | 2 | Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 |
7898deda | 3 | Free Software Foundation, Inc. |
277d1b5e | 4 | Written by Cygnus Solutions. |
252b5132 | 5 | |
ff0c9faf | 6 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 7 | |
ff0c9faf NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
252b5132 | 12 | |
ff0c9faf NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
252b5132 | 17 | |
ff0c9faf NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
252b5132 | 21 | |
ff0c9faf | 22 | /* Most of this hacked by Steve Chamberlain, |
252b5132 | 23 | sac@cygnus.com |
277d1b5e | 24 | |
ff0c9faf NC |
25 | PE/PEI rearrangement (and code added): Donn Terry |
26 | Softway Systems, Inc. */ | |
252b5132 RH |
27 | |
28 | /* Hey look, some documentation [and in a place you expect to find it]! | |
29 | ||
30 | The main reference for the pei format is "Microsoft Portable Executable | |
31 | and Common Object File Format Specification 4.1". Get it if you need to | |
32 | do some serious hacking on this code. | |
33 | ||
34 | Another reference: | |
35 | "Peering Inside the PE: A Tour of the Win32 Portable Executable | |
36 | File Format", MSJ 1994, Volume 9. | |
37 | ||
38 | The *sole* difference between the pe format and the pei format is that the | |
39 | latter has an MSDOS 2.0 .exe header on the front that prints the message | |
40 | "This app must be run under Windows." (or some such). | |
41 | (FIXME: Whether that statement is *really* true or not is unknown. | |
42 | Are there more subtle differences between pe and pei formats? | |
43 | For now assume there aren't. If you find one, then for God sakes | |
44 | document it here!) | |
45 | ||
46 | The Microsoft docs use the word "image" instead of "executable" because | |
47 | the former can also refer to a DLL (shared library). Confusion can arise | |
48 | because the `i' in `pei' also refers to "image". The `pe' format can | |
49 | also create images (i.e. executables), it's just that to run on a win32 | |
50 | system you need to use the pei format. | |
51 | ||
52 | FIXME: Please add more docs here so the next poor fool that has to hack | |
53 | on this code has a chance of getting something accomplished without | |
ff0c9faf | 54 | wasting too much time. */ |
252b5132 | 55 | |
277d1b5e ILT |
56 | #include "libpei.h" |
57 | ||
b34976b6 | 58 | static bfd_boolean (*pe_saved_coff_bfd_print_private_bfd_data) |
277d1b5e ILT |
59 | PARAMS ((bfd *, PTR)) = |
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 | ||
b34976b6 | 67 | static bfd_boolean pe_print_private_bfd_data PARAMS ((bfd *, PTR)); |
277d1b5e | 68 | #define coff_bfd_print_private_bfd_data pe_print_private_bfd_data |
252b5132 | 69 | |
b34976b6 | 70 | static bfd_boolean (*pe_saved_coff_bfd_copy_private_bfd_data) |
277d1b5e ILT |
71 | PARAMS ((bfd *, bfd *)) = |
72 | #ifndef coff_bfd_copy_private_bfd_data | |
73 | NULL; | |
74 | #else | |
75 | coff_bfd_copy_private_bfd_data; | |
76 | #undef coff_bfd_copy_private_bfd_data | |
252b5132 RH |
77 | #endif |
78 | ||
b34976b6 | 79 | static bfd_boolean pe_bfd_copy_private_bfd_data PARAMS ((bfd *, bfd *)); |
277d1b5e | 80 | #define coff_bfd_copy_private_bfd_data pe_bfd_copy_private_bfd_data |
252b5132 | 81 | |
277d1b5e ILT |
82 | #define coff_mkobject pe_mkobject |
83 | #define coff_mkobject_hook pe_mkobject_hook | |
252b5132 | 84 | |
17505c5c | 85 | #ifndef NO_COFF_RELOCS |
252b5132 RH |
86 | static void coff_swap_reloc_in PARAMS ((bfd *, PTR, PTR)); |
87 | static unsigned int coff_swap_reloc_out PARAMS ((bfd *, PTR, PTR)); | |
17505c5c | 88 | #endif |
252b5132 | 89 | static void coff_swap_filehdr_in PARAMS ((bfd *, PTR, PTR)); |
252b5132 | 90 | static void coff_swap_scnhdr_in PARAMS ((bfd *, PTR, PTR)); |
b34976b6 | 91 | static bfd_boolean pe_mkobject PARAMS ((bfd *)); |
252b5132 | 92 | static PTR pe_mkobject_hook PARAMS ((bfd *, PTR, PTR)); |
252b5132 | 93 | |
17505c5c NC |
94 | #ifdef COFF_IMAGE_WITH_PE |
95 | /* This structure contains static variables used by the ILF code. */ | |
96 | typedef asection * asection_ptr; | |
97 | ||
98 | typedef struct | |
99 | { | |
100 | bfd * abfd; | |
101 | bfd_byte * data; | |
102 | struct bfd_in_memory * bim; | |
103 | unsigned short magic; | |
ee91ed79 | 104 | |
17505c5c NC |
105 | arelent * reltab; |
106 | unsigned int relcount; | |
107 | ||
108 | coff_symbol_type * sym_cache; | |
109 | coff_symbol_type * sym_ptr; | |
110 | unsigned int sym_index; | |
ee91ed79 | 111 | |
17505c5c NC |
112 | unsigned int * sym_table; |
113 | unsigned int * table_ptr; | |
ee91ed79 | 114 | |
17505c5c NC |
115 | combined_entry_type * native_syms; |
116 | combined_entry_type * native_ptr; | |
117 | ||
11c8a8d1 NC |
118 | coff_symbol_type ** sym_ptr_table; |
119 | coff_symbol_type ** sym_ptr_ptr; | |
ee91ed79 | 120 | |
17505c5c NC |
121 | unsigned int sec_index; |
122 | ||
123 | char * string_table; | |
124 | char * string_ptr; | |
125 | char * end_string_ptr; | |
ee91ed79 | 126 | |
17505c5c NC |
127 | SYMENT * esym_table; |
128 | SYMENT * esym_ptr; | |
129 | ||
130 | struct internal_reloc * int_reltab; | |
131 | } | |
132 | pe_ILF_vars; | |
133 | ||
134 | static asection_ptr pe_ILF_make_a_section PARAMS ((pe_ILF_vars *, const char *, unsigned int, flagword)); | |
135 | static void pe_ILF_make_a_reloc PARAMS ((pe_ILF_vars *, bfd_vma, bfd_reloc_code_real_type, asection_ptr)); | |
136 | static void pe_ILF_make_a_symbol PARAMS ((pe_ILF_vars *, const char *, const char *, asection_ptr, flagword)); | |
137 | static void pe_ILF_save_relocs PARAMS ((pe_ILF_vars *, asection_ptr)); | |
fc0a2244 | 138 | static void pe_ILF_make_a_symbol_reloc PARAMS ((pe_ILF_vars *, bfd_vma, bfd_reloc_code_real_type, struct bfd_symbol **, unsigned int)); |
b34976b6 | 139 | static bfd_boolean pe_ILF_build_a_bfd PARAMS ((bfd *, unsigned int, bfd_byte *, bfd_byte *, unsigned int, unsigned int)); |
17505c5c | 140 | static const bfd_target * pe_ILF_object_p PARAMS ((bfd *)); |
11c8a8d1 | 141 | static const bfd_target * pe_bfd_object_p PARAMS ((bfd *)); |
17505c5c NC |
142 | #endif /* COFF_IMAGE_WITH_PE */ |
143 | ||
252b5132 RH |
144 | /**********************************************************************/ |
145 | ||
17505c5c | 146 | #ifndef NO_COFF_RELOCS |
252b5132 RH |
147 | static void |
148 | coff_swap_reloc_in (abfd, src, dst) | |
149 | bfd *abfd; | |
150 | PTR src; | |
151 | PTR dst; | |
152 | { | |
153 | RELOC *reloc_src = (RELOC *) src; | |
154 | struct internal_reloc *reloc_dst = (struct internal_reloc *) dst; | |
155 | ||
dc810e39 AM |
156 | reloc_dst->r_vaddr = H_GET_32 (abfd, reloc_src->r_vaddr); |
157 | reloc_dst->r_symndx = H_GET_S32 (abfd, reloc_src->r_symndx); | |
252b5132 | 158 | |
dc810e39 | 159 | reloc_dst->r_type = H_GET_16 (abfd, reloc_src->r_type); |
252b5132 RH |
160 | |
161 | #ifdef SWAP_IN_RELOC_OFFSET | |
dc810e39 | 162 | reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET (abfd, reloc_src->r_offset); |
252b5132 RH |
163 | #endif |
164 | } | |
165 | ||
252b5132 RH |
166 | static unsigned int |
167 | coff_swap_reloc_out (abfd, src, dst) | |
168 | bfd *abfd; | |
169 | PTR src; | |
170 | PTR dst; | |
171 | { | |
172 | struct internal_reloc *reloc_src = (struct internal_reloc *)src; | |
173 | struct external_reloc *reloc_dst = (struct external_reloc *)dst; | |
dc810e39 AM |
174 | H_PUT_32 (abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr); |
175 | H_PUT_32 (abfd, reloc_src->r_symndx, reloc_dst->r_symndx); | |
252b5132 | 176 | |
dc810e39 | 177 | H_PUT_16 (abfd, reloc_src->r_type, reloc_dst->r_type); |
252b5132 RH |
178 | |
179 | #ifdef SWAP_OUT_RELOC_OFFSET | |
dc810e39 | 180 | SWAP_OUT_RELOC_OFFSET (abfd, reloc_src->r_offset, reloc_dst->r_offset); |
252b5132 RH |
181 | #endif |
182 | #ifdef SWAP_OUT_RELOC_EXTRA | |
dc810e39 | 183 | SWAP_OUT_RELOC_EXTRA(abfd, reloc_src, reloc_dst); |
252b5132 RH |
184 | #endif |
185 | return RELSZ; | |
186 | } | |
17505c5c | 187 | #endif /* not NO_COFF_RELOCS */ |
252b5132 RH |
188 | |
189 | static void | |
190 | coff_swap_filehdr_in (abfd, src, dst) | |
191 | bfd *abfd; | |
192 | PTR src; | |
193 | PTR dst; | |
194 | { | |
195 | FILHDR *filehdr_src = (FILHDR *) src; | |
196 | struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst; | |
dc810e39 AM |
197 | filehdr_dst->f_magic = H_GET_16 (abfd, filehdr_src->f_magic); |
198 | filehdr_dst->f_nscns = H_GET_16 (abfd, filehdr_src-> f_nscns); | |
199 | filehdr_dst->f_timdat = H_GET_32 (abfd, filehdr_src-> f_timdat); | |
252b5132 | 200 | |
dc810e39 AM |
201 | filehdr_dst->f_nsyms = H_GET_32 (abfd, filehdr_src-> f_nsyms); |
202 | filehdr_dst->f_flags = H_GET_16 (abfd, filehdr_src-> f_flags); | |
203 | filehdr_dst->f_symptr = H_GET_32 (abfd, filehdr_src->f_symptr); | |
252b5132 RH |
204 | |
205 | /* Other people's tools sometimes generate headers with an nsyms but | |
206 | a zero symptr. */ | |
207 | if (filehdr_dst->f_nsyms != 0 && filehdr_dst->f_symptr == 0) | |
208 | { | |
209 | filehdr_dst->f_nsyms = 0; | |
210 | filehdr_dst->f_flags |= F_LSYMS; | |
211 | } | |
212 | ||
dc810e39 | 213 | filehdr_dst->f_opthdr = H_GET_16 (abfd, filehdr_src-> f_opthdr); |
252b5132 RH |
214 | } |
215 | ||
216 | #ifdef COFF_IMAGE_WITH_PE | |
cbff5e0d | 217 | # define coff_swap_filehdr_out _bfd_XXi_only_swap_filehdr_out |
252b5132 | 218 | #else |
cbff5e0d | 219 | # define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out |
252b5132 | 220 | #endif |
252b5132 | 221 | |
252b5132 | 222 | static void |
e166a60f ILT |
223 | coff_swap_scnhdr_in (abfd, ext, in) |
224 | bfd *abfd; | |
225 | PTR ext; | |
226 | PTR in; | |
252b5132 RH |
227 | { |
228 | SCNHDR *scnhdr_ext = (SCNHDR *) ext; | |
229 | struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in; | |
230 | ||
ee91ed79 | 231 | memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof (scnhdr_int->s_name)); |
dc810e39 AM |
232 | scnhdr_int->s_vaddr = GET_SCNHDR_VADDR (abfd, scnhdr_ext->s_vaddr); |
233 | scnhdr_int->s_paddr = GET_SCNHDR_PADDR (abfd, scnhdr_ext->s_paddr); | |
234 | scnhdr_int->s_size = GET_SCNHDR_SIZE (abfd, scnhdr_ext->s_size); | |
235 | scnhdr_int->s_scnptr = GET_SCNHDR_SCNPTR (abfd, scnhdr_ext->s_scnptr); | |
236 | scnhdr_int->s_relptr = GET_SCNHDR_RELPTR (abfd, scnhdr_ext->s_relptr); | |
237 | scnhdr_int->s_lnnoptr = GET_SCNHDR_LNNOPTR (abfd, scnhdr_ext->s_lnnoptr); | |
238 | scnhdr_int->s_flags = H_GET_32 (abfd, scnhdr_ext->s_flags); | |
252b5132 | 239 | |
cb43721d ILT |
240 | /* MS handles overflow of line numbers by carrying into the reloc |
241 | field (it appears). Since it's supposed to be zero for PE | |
242 | *IMAGE* format, that's safe. This is still a bit iffy. */ | |
243 | #ifdef COFF_IMAGE_WITH_PE | |
dc810e39 AM |
244 | scnhdr_int->s_nlnno = (H_GET_16 (abfd, scnhdr_ext->s_nlnno) |
245 | + (H_GET_16 (abfd, scnhdr_ext->s_nreloc) << 16)); | |
cb43721d ILT |
246 | scnhdr_int->s_nreloc = 0; |
247 | #else | |
dc810e39 AM |
248 | scnhdr_int->s_nreloc = H_GET_16 (abfd, scnhdr_ext->s_nreloc); |
249 | scnhdr_int->s_nlnno = H_GET_16 (abfd, scnhdr_ext->s_nlnno); | |
cb43721d | 250 | #endif |
252b5132 | 251 | |
ee91ed79 | 252 | if (scnhdr_int->s_vaddr != 0) |
252b5132 RH |
253 | { |
254 | scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase; | |
255 | scnhdr_int->s_vaddr &= 0xffffffff; | |
256 | } | |
e166a60f | 257 | |
17505c5c | 258 | #ifndef COFF_NO_HACK_SCNHDR_SIZE |
a3476bef NC |
259 | /* If this section holds uninitialized data and is from an object file |
260 | or from an executable image that has not initialized the field, | |
c9ac8978 NC |
261 | or if the image is an executable file and the physical size is padded, |
262 | use the virtual size (stored in s_paddr) instead. */ | |
a3476bef NC |
263 | if (scnhdr_int->s_paddr > 0 |
264 | && (((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0 | |
c9ac8978 NC |
265 | && (! bfd_pe_executable_p (abfd) || scnhdr_int->s_size == 0)) |
266 | || (bfd_pe_executable_p (abfd) && scnhdr_int->s_size > scnhdr_int->s_paddr))) | |
252b5132 | 267 | { |
a3476bef | 268 | scnhdr_int->s_size = scnhdr_int->s_paddr; |
ff0c9faf | 269 | |
e166a60f ILT |
270 | /* This code used to set scnhdr_int->s_paddr to 0. However, |
271 | coff_set_alignment_hook stores s_paddr in virt_size, which | |
272 | only works if it correctly holds the virtual size of the | |
273 | section. */ | |
252b5132 | 274 | } |
17505c5c | 275 | #endif |
252b5132 RH |
276 | } |
277 | ||
b34976b6 | 278 | static bfd_boolean |
252b5132 RH |
279 | pe_mkobject (abfd) |
280 | bfd * abfd; | |
281 | { | |
282 | pe_data_type *pe; | |
dc810e39 AM |
283 | bfd_size_type amt = sizeof (pe_data_type); |
284 | ||
285 | abfd->tdata.pe_obj_data = (struct pe_tdata *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
286 | |
287 | if (abfd->tdata.pe_obj_data == 0) | |
b34976b6 | 288 | return FALSE; |
252b5132 RH |
289 | |
290 | pe = pe_data (abfd); | |
291 | ||
292 | pe->coff.pe = 1; | |
277d1b5e ILT |
293 | |
294 | /* in_reloc_p is architecture dependent. */ | |
252b5132 | 295 | pe->in_reloc_p = in_reloc_p; |
cbff5e0d DD |
296 | |
297 | #ifdef PEI_FORCE_MINIMUM_ALIGNMENT | |
298 | pe->force_minimum_alignment = 1; | |
299 | #endif | |
300 | #ifdef PEI_TARGET_SUBSYSTEM | |
301 | pe->target_subsystem = PEI_TARGET_SUBSYSTEM; | |
302 | #endif | |
303 | ||
b34976b6 | 304 | return TRUE; |
252b5132 RH |
305 | } |
306 | ||
307 | /* Create the COFF backend specific information. */ | |
308 | static PTR | |
309 | pe_mkobject_hook (abfd, filehdr, aouthdr) | |
310 | bfd * abfd; | |
311 | PTR filehdr; | |
5f771d47 | 312 | PTR aouthdr ATTRIBUTE_UNUSED; |
252b5132 RH |
313 | { |
314 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
315 | pe_data_type *pe; | |
316 | ||
82e51918 | 317 | if (! pe_mkobject (abfd)) |
252b5132 RH |
318 | return NULL; |
319 | ||
320 | pe = pe_data (abfd); | |
321 | pe->coff.sym_filepos = internal_f->f_symptr; | |
322 | /* These members communicate important constants about the symbol | |
323 | table to GDB's symbol-reading code. These `constants' | |
324 | unfortunately vary among coff implementations... */ | |
325 | pe->coff.local_n_btmask = N_BTMASK; | |
326 | pe->coff.local_n_btshft = N_BTSHFT; | |
327 | pe->coff.local_n_tmask = N_TMASK; | |
328 | pe->coff.local_n_tshift = N_TSHIFT; | |
329 | pe->coff.local_symesz = SYMESZ; | |
330 | pe->coff.local_auxesz = AUXESZ; | |
331 | pe->coff.local_linesz = LINESZ; | |
332 | ||
1135238b ILT |
333 | pe->coff.timestamp = internal_f->f_timdat; |
334 | ||
252b5132 RH |
335 | obj_raw_syment_count (abfd) = |
336 | obj_conv_table_size (abfd) = | |
337 | internal_f->f_nsyms; | |
338 | ||
339 | pe->real_flags = internal_f->f_flags; | |
340 | ||
341 | if ((internal_f->f_flags & F_DLL) != 0) | |
342 | pe->dll = 1; | |
343 | ||
4cfec37b ILT |
344 | if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) |
345 | abfd->flags |= HAS_DEBUG; | |
346 | ||
252b5132 | 347 | #ifdef COFF_IMAGE_WITH_PE |
ee91ed79 | 348 | if (aouthdr) |
252b5132 RH |
349 | pe->pe_opthdr = ((struct internal_aouthdr *)aouthdr)->pe; |
350 | #endif | |
351 | ||
ee91ed79 | 352 | #ifdef ARM |
252b5132 RH |
353 | if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) |
354 | coff_data (abfd) ->flags = 0; | |
355 | #endif | |
ee91ed79 | 356 | |
252b5132 RH |
357 | return (PTR) pe; |
358 | } | |
359 | ||
b34976b6 | 360 | static bfd_boolean |
277d1b5e ILT |
361 | pe_print_private_bfd_data (abfd, vfile) |
362 | bfd *abfd; | |
363 | PTR vfile; | |
364 | { | |
365 | FILE *file = (FILE *) vfile; | |
366 | ||
cbff5e0d | 367 | if (!_bfd_XX_print_private_bfd_data_common (abfd, vfile)) |
b34976b6 | 368 | return FALSE; |
252b5132 | 369 | |
277d1b5e ILT |
370 | if (pe_saved_coff_bfd_print_private_bfd_data != NULL) |
371 | { | |
372 | fputc ('\n', file); | |
373 | ||
374 | return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile); | |
375 | } | |
376 | ||
b34976b6 | 377 | return TRUE; |
277d1b5e | 378 | } |
252b5132 RH |
379 | |
380 | /* Copy any private info we understand from the input bfd | |
381 | to the output bfd. */ | |
382 | ||
b34976b6 | 383 | static bfd_boolean |
252b5132 RH |
384 | pe_bfd_copy_private_bfd_data (ibfd, obfd) |
385 | bfd *ibfd, *obfd; | |
386 | { | |
cbff5e0d | 387 | if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd, obfd)) |
b34976b6 | 388 | return FALSE; |
252b5132 RH |
389 | |
390 | if (pe_saved_coff_bfd_copy_private_bfd_data) | |
391 | return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd); | |
252b5132 | 392 | |
b34976b6 | 393 | return TRUE; |
252b5132 RH |
394 | } |
395 | ||
277d1b5e | 396 | #define coff_bfd_copy_private_section_data \ |
cbff5e0d | 397 | _bfd_XX_bfd_copy_private_section_data |
7d2b58d6 | 398 | |
cbff5e0d | 399 | #define coff_get_symbol_info _bfd_XX_get_symbol_info |
cb665cd3 | 400 | |
b1f10154 | 401 | #ifdef COFF_IMAGE_WITH_PE |
17505c5c NC |
402 | \f |
403 | /* Code to handle Microsoft's Image Library Format. | |
404 | Also known as LINK6 format. | |
ee91ed79 | 405 | Documentation about this format can be found at: |
17505c5c NC |
406 | |
407 | http://msdn.microsoft.com/library/specs/pecoff_section8.htm */ | |
408 | ||
409 | /* The following constants specify the sizes of the various data | |
410 | structures that we have to create in order to build a bfd describing | |
411 | an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6 | |
412 | and SIZEOF_IDATA7 below is to allow for the possibility that we might | |
413 | need a padding byte in order to ensure 16 bit alignment for the section's | |
414 | contents. | |
415 | ||
416 | The value for SIZEOF_ILF_STRINGS is computed as follows: | |
417 | ||
418 | There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters | |
11c8a8d1 | 419 | per symbol for their names (longest section name is .idata$x). |
17505c5c NC |
420 | |
421 | There will be two symbols for the imported value, one the symbol name | |
422 | and one with _imp__ prefixed. Allowing for the terminating nul's this | |
11c8a8d1 | 423 | is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll). |
17505c5c NC |
424 | |
425 | The strings in the string table must start STRING__SIZE_SIZE bytes into | |
426 | the table in order to for the string lookup code in coffgen/coffcode to | |
427 | work. */ | |
428 | #define NUM_ILF_RELOCS 8 | |
429 | #define NUM_ILF_SECTIONS 6 | |
430 | #define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS) | |
ee91ed79 | 431 | |
17505c5c NC |
432 | #define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache)) |
433 | #define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table)) | |
434 | #define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms)) | |
11c8a8d1 | 435 | #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table)) |
17505c5c NC |
436 | #define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table)) |
437 | #define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab)) | |
438 | #define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab)) | |
11c8a8d1 NC |
439 | #define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \ |
440 | + 21 + strlen (source_dll) \ | |
441 | + NUM_ILF_SECTIONS * 9 \ | |
442 | + STRING_SIZE_SIZE) | |
17505c5c NC |
443 | #define SIZEOF_IDATA2 (5 * 4) |
444 | #define SIZEOF_IDATA4 (1 * 4) | |
445 | #define SIZEOF_IDATA5 (1 * 4) | |
446 | #define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1) | |
447 | #define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1) | |
448 | #define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata)) | |
ee91ed79 | 449 | |
17505c5c NC |
450 | #define ILF_DATA_SIZE \ |
451 | sizeof (* vars.bim) \ | |
452 | + SIZEOF_ILF_SYMS \ | |
453 | + SIZEOF_ILF_SYM_TABLE \ | |
454 | + SIZEOF_ILF_NATIVE_SYMS \ | |
11c8a8d1 | 455 | + SIZEOF_ILF_SYM_PTR_TABLE \ |
17505c5c NC |
456 | + SIZEOF_ILF_EXT_SYMS \ |
457 | + SIZEOF_ILF_RELOCS \ | |
458 | + SIZEOF_ILF_INT_RELOCS \ | |
459 | + SIZEOF_ILF_STRINGS \ | |
460 | + SIZEOF_IDATA2 \ | |
461 | + SIZEOF_IDATA4 \ | |
462 | + SIZEOF_IDATA5 \ | |
463 | + SIZEOF_IDATA6 \ | |
464 | + SIZEOF_IDATA7 \ | |
465 | + SIZEOF_ILF_SECTIONS \ | |
466 | + MAX_TEXT_SECTION_SIZE | |
467 | ||
17505c5c NC |
468 | /* Create an empty relocation against the given symbol. */ |
469 | static void | |
11c8a8d1 NC |
470 | pe_ILF_make_a_symbol_reloc (pe_ILF_vars * vars, |
471 | bfd_vma address, | |
472 | bfd_reloc_code_real_type reloc, | |
fc0a2244 | 473 | struct bfd_symbol ** sym, |
11c8a8d1 | 474 | unsigned int sym_index) |
17505c5c NC |
475 | { |
476 | arelent * entry; | |
477 | struct internal_reloc * internal; | |
478 | ||
479 | entry = vars->reltab + vars->relcount; | |
480 | internal = vars->int_reltab + vars->relcount; | |
ee91ed79 | 481 | |
17505c5c NC |
482 | entry->address = address; |
483 | entry->addend = 0; | |
484 | entry->howto = bfd_reloc_type_lookup (vars->abfd, reloc); | |
11c8a8d1 | 485 | entry->sym_ptr_ptr = sym; |
17505c5c NC |
486 | |
487 | internal->r_vaddr = address; | |
11c8a8d1 | 488 | internal->r_symndx = sym_index; |
17505c5c NC |
489 | internal->r_type = entry->howto->type; |
490 | #if 0 /* These fields do not need to be initialised. */ | |
491 | internal->r_size = 0; | |
492 | internal->r_extern = 0; | |
493 | internal->r_offset = 0; | |
494 | #endif | |
ee91ed79 | 495 | |
17505c5c | 496 | vars->relcount ++; |
ee91ed79 | 497 | |
17505c5c NC |
498 | BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS); |
499 | } | |
500 | ||
11c8a8d1 NC |
501 | /* Create an empty relocation against the given section. */ |
502 | static void | |
503 | pe_ILF_make_a_reloc (pe_ILF_vars * vars, | |
504 | bfd_vma address, | |
505 | bfd_reloc_code_real_type reloc, | |
506 | asection_ptr sec) | |
507 | { | |
508 | pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr, | |
509 | coff_section_data (vars->abfd, sec)->i); | |
510 | } | |
511 | ||
17505c5c NC |
512 | /* Move the queued relocs into the given section. */ |
513 | static void | |
514 | pe_ILF_save_relocs (pe_ILF_vars * vars, | |
515 | asection_ptr sec) | |
516 | { | |
517 | /* Make sure that there is somewhere to store the internal relocs. */ | |
518 | if (coff_section_data (vars->abfd, sec) == NULL) | |
519 | /* We should probably return an error indication here. */ | |
520 | abort (); | |
521 | ||
522 | coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab; | |
b34976b6 | 523 | coff_section_data (vars->abfd, sec)->keep_relocs = TRUE; |
17505c5c NC |
524 | |
525 | sec->relocation = vars->reltab; | |
526 | sec->reloc_count = vars->relcount; | |
527 | sec->flags |= SEC_RELOC; | |
528 | ||
529 | vars->reltab += vars->relcount; | |
530 | vars->int_reltab += vars->relcount; | |
531 | vars->relcount = 0; | |
532 | ||
dc810e39 | 533 | BFD_ASSERT ((bfd_byte *) vars->int_reltab < (bfd_byte *) vars->string_table); |
17505c5c NC |
534 | } |
535 | ||
536 | /* Create a global symbol and add it to the relevant tables. */ | |
537 | static void | |
538 | pe_ILF_make_a_symbol (pe_ILF_vars * vars, | |
539 | const char * prefix, | |
540 | const char * symbol_name, | |
541 | asection_ptr section, | |
542 | flagword extra_flags) | |
543 | { | |
544 | coff_symbol_type * sym; | |
545 | combined_entry_type * ent; | |
546 | SYMENT * esym; | |
547 | unsigned short sclass; | |
548 | ||
549 | if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 550 | sclass = C_STAT; |
17505c5c NC |
551 | else |
552 | sclass = C_EXT; | |
ee91ed79 KH |
553 | |
554 | #ifdef THUMBPEMAGIC | |
17505c5c NC |
555 | if (vars->magic == THUMBPEMAGIC) |
556 | { | |
557 | if (extra_flags & BSF_FUNCTION) | |
558 | sclass = C_THUMBEXTFUNC; | |
559 | else if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 560 | sclass = C_THUMBSTAT; |
17505c5c NC |
561 | else |
562 | sclass = C_THUMBEXT; | |
563 | } | |
564 | #endif | |
565 | ||
566 | BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS); | |
ee91ed79 | 567 | |
17505c5c NC |
568 | sym = vars->sym_ptr; |
569 | ent = vars->native_ptr; | |
570 | esym = vars->esym_ptr; | |
571 | ||
572 | /* Copy the symbol's name into the string table. */ | |
573 | sprintf (vars->string_ptr, "%s%s", prefix, symbol_name); | |
574 | ||
10821322 NC |
575 | if (section == NULL) |
576 | section = (asection_ptr) & bfd_und_section; | |
ee91ed79 | 577 | |
17505c5c | 578 | /* Initialise the external symbol. */ |
dc810e39 AM |
579 | H_PUT_32 (vars->abfd, vars->string_ptr - vars->string_table, |
580 | esym->e.e.e_offset); | |
581 | H_PUT_16 (vars->abfd, section->target_index, esym->e_scnum); | |
17505c5c NC |
582 | esym->e_sclass[0] = sclass; |
583 | ||
584 | /* The following initialisations are unnecessary - the memory is | |
585 | zero initialised. They are just kept here as reminders. */ | |
586 | #if 0 | |
587 | esym->e.e.e_zeroes = 0; | |
588 | esym->e_value = 0; | |
589 | esym->e_type = T_NULL; | |
590 | esym->e_numaux = 0; | |
591 | #endif | |
ee91ed79 | 592 | |
17505c5c NC |
593 | /* Initialise the internal symbol structure. */ |
594 | ent->u.syment.n_sclass = sclass; | |
10821322 | 595 | ent->u.syment.n_scnum = section->target_index; |
17505c5c | 596 | ent->u.syment._n._n_n._n_offset = (long) sym; |
ee91ed79 | 597 | |
17505c5c NC |
598 | #if 0 /* See comment above. */ |
599 | ent->u.syment.n_value = 0; | |
600 | ent->u.syment.n_flags = 0; | |
601 | ent->u.syment.n_type = T_NULL; | |
602 | ent->u.syment.n_numaux = 0; | |
603 | ent->fix_value = 0; | |
604 | #endif | |
ee91ed79 | 605 | |
17505c5c NC |
606 | sym->symbol.the_bfd = vars->abfd; |
607 | sym->symbol.name = vars->string_ptr; | |
608 | sym->symbol.flags = BSF_EXPORT | BSF_GLOBAL | extra_flags; | |
609 | sym->symbol.section = section; | |
610 | sym->native = ent; | |
ee91ed79 | 611 | |
17505c5c NC |
612 | #if 0 /* See comment above. */ |
613 | sym->symbol.value = 0; | |
614 | sym->symbol.udata.i = 0; | |
b34976b6 | 615 | sym->done_lineno = FALSE; |
17505c5c NC |
616 | sym->lineno = NULL; |
617 | #endif | |
ee91ed79 | 618 | |
17505c5c | 619 | * vars->table_ptr = vars->sym_index; |
11c8a8d1 | 620 | * vars->sym_ptr_ptr = sym; |
ee91ed79 | 621 | |
17505c5c NC |
622 | /* Adjust pointers for the next symbol. */ |
623 | vars->sym_index ++; | |
624 | vars->sym_ptr ++; | |
11c8a8d1 | 625 | vars->sym_ptr_ptr ++; |
17505c5c NC |
626 | vars->table_ptr ++; |
627 | vars->native_ptr ++; | |
628 | vars->esym_ptr ++; | |
11c8a8d1 | 629 | vars->string_ptr += strlen (symbol_name) + strlen (prefix) + 1; |
17505c5c NC |
630 | |
631 | BFD_ASSERT (vars->string_ptr < vars->end_string_ptr); | |
632 | } | |
633 | ||
634 | /* Create a section. */ | |
635 | static asection_ptr | |
636 | pe_ILF_make_a_section (pe_ILF_vars * vars, | |
637 | const char * name, | |
638 | unsigned int size, | |
639 | flagword extra_flags) | |
640 | { | |
641 | asection_ptr sec; | |
642 | flagword flags; | |
ee91ed79 | 643 | |
17505c5c NC |
644 | sec = bfd_make_section_old_way (vars->abfd, name); |
645 | if (sec == NULL) | |
646 | return NULL; | |
ee91ed79 | 647 | |
17505c5c | 648 | flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY; |
ee91ed79 | 649 | |
17505c5c | 650 | bfd_set_section_flags (vars->abfd, sec, flags | extra_flags); |
ee91ed79 | 651 | |
17505c5c | 652 | bfd_set_section_alignment (vars->abfd, sec, 2); |
ee91ed79 | 653 | |
17505c5c NC |
654 | /* Check that we will not run out of space. */ |
655 | BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 656 | |
17505c5c NC |
657 | /* Set the section size and contents. The actual |
658 | contents are filled in by our parent. */ | |
dc810e39 | 659 | bfd_set_section_size (vars->abfd, sec, (bfd_size_type) size); |
17505c5c NC |
660 | sec->contents = vars->data; |
661 | sec->target_index = vars->sec_index ++; | |
662 | ||
663 | /* Advance data pointer in the vars structure. */ | |
664 | vars->data += size; | |
ee91ed79 | 665 | |
17505c5c NC |
666 | /* Skip the padding byte if it was not needed. |
667 | The logic here is that if the string length is odd, | |
668 | then the entire string length, including the null byte, | |
669 | is even and so the extra, padding byte, is not needed. */ | |
670 | if (size & 1) | |
671 | vars->data --; | |
ee91ed79 | 672 | |
17505c5c NC |
673 | /* Create a coff_section_tdata structure for our use. */ |
674 | sec->used_by_bfd = (struct coff_section_tdata *) vars->data; | |
675 | vars->data += sizeof (struct coff_section_tdata); | |
676 | ||
677 | BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 678 | |
17505c5c NC |
679 | /* Create a symbol to refer to this section. */ |
680 | pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL); | |
681 | ||
11c8a8d1 | 682 | /* Cache the index to the symbol in the coff_section_data structure. */ |
17505c5c | 683 | coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1; |
ee91ed79 | 684 | |
17505c5c NC |
685 | return sec; |
686 | } | |
687 | ||
688 | /* This structure contains the code that goes into the .text section | |
689 | in order to perform a jump into the DLL lookup table. The entries | |
690 | in the table are index by the magic number used to represent the | |
691 | machine type in the PE file. The contents of the data[] arrays in | |
692 | these entries are stolen from the jtab[] arrays in ld/pe-dll.c. | |
693 | The SIZE field says how many bytes in the DATA array are actually | |
694 | used. The OFFSET field says where in the data array the address | |
695 | of the .idata$5 section should be placed. */ | |
696 | #define MAX_TEXT_SECTION_SIZE 32 | |
697 | ||
698 | typedef struct | |
699 | { | |
700 | unsigned short magic; | |
701 | unsigned char data[MAX_TEXT_SECTION_SIZE]; | |
702 | unsigned int size; | |
703 | unsigned int offset; | |
704 | } | |
705 | jump_table; | |
706 | ||
86033394 | 707 | static jump_table jtab[] = |
17505c5c NC |
708 | { |
709 | #ifdef I386MAGIC | |
710 | { I386MAGIC, | |
711 | { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, | |
712 | 8, 2 | |
713 | }, | |
714 | #endif | |
ee91ed79 | 715 | |
17505c5c NC |
716 | #ifdef MC68MAGIC |
717 | { MC68MAGIC, { /* XXX fill me in */ }, 0, 0 }, | |
718 | #endif | |
719 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
720 | { MIPS_ARCH_MAGIC_WINCE, | |
721 | { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, | |
722 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 }, | |
723 | 16, 0 | |
724 | }, | |
725 | #endif | |
ee91ed79 | 726 | |
17505c5c NC |
727 | #ifdef SH_ARCH_MAGIC_WINCE |
728 | { SH_ARCH_MAGIC_WINCE, | |
729 | { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, | |
730 | 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 }, | |
731 | 12, 8 | |
732 | }, | |
733 | #endif | |
ee91ed79 | 734 | |
17505c5c NC |
735 | #ifdef ARMPEMAGIC |
736 | { ARMPEMAGIC, | |
737 | { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0, | |
738 | 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00}, | |
739 | 12, 8 | |
740 | }, | |
741 | #endif | |
ee91ed79 | 742 | |
17505c5c NC |
743 | #ifdef THUMBPEMAGIC |
744 | { THUMBPEMAGIC, | |
745 | { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46, | |
746 | 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 }, | |
747 | 16, 12 | |
748 | }, | |
749 | #endif | |
750 | { 0, { 0 }, 0, 0 } | |
751 | }; | |
752 | ||
753 | #ifndef NUM_ENTRIES | |
754 | #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0]) | |
755 | #endif | |
756 | ||
757 | /* Build a full BFD from the information supplied in a ILF object. */ | |
b34976b6 | 758 | static bfd_boolean |
17505c5c | 759 | pe_ILF_build_a_bfd (bfd * abfd, |
dc810e39 | 760 | unsigned int magic, |
17505c5c NC |
761 | bfd_byte * symbol_name, |
762 | bfd_byte * source_dll, | |
763 | unsigned int ordinal, | |
764 | unsigned int types) | |
ee91ed79 | 765 | { |
17505c5c NC |
766 | bfd_byte * ptr; |
767 | pe_ILF_vars vars; | |
768 | struct internal_filehdr internal_f; | |
769 | unsigned int import_type; | |
770 | unsigned int import_name_type; | |
11c8a8d1 NC |
771 | asection_ptr id4, id5, id6 = NULL, text = NULL; |
772 | coff_symbol_type ** imp_sym; | |
773 | unsigned int imp_index; | |
17505c5c | 774 | |
17505c5c NC |
775 | /* Decode and verify the types field of the ILF structure. */ |
776 | import_type = types & 0x3; | |
777 | import_name_type = (types & 0x1c) >> 2; | |
778 | ||
779 | switch (import_type) | |
780 | { | |
781 | case IMPORT_CODE: | |
782 | case IMPORT_DATA: | |
783 | break; | |
ee91ed79 | 784 | |
17505c5c NC |
785 | case IMPORT_CONST: |
786 | /* XXX code yet to be written. */ | |
787 | _bfd_error_handler (_("%s: Unhandled import type; %x"), | |
8f615d07 | 788 | bfd_archive_filename (abfd), import_type); |
b34976b6 | 789 | return FALSE; |
ee91ed79 | 790 | |
17505c5c NC |
791 | default: |
792 | _bfd_error_handler (_("%s: Unrecognised import type; %x"), | |
8f615d07 | 793 | bfd_archive_filename (abfd), import_type); |
b34976b6 | 794 | return FALSE; |
17505c5c NC |
795 | } |
796 | ||
797 | switch (import_name_type) | |
798 | { | |
799 | case IMPORT_ORDINAL: | |
800 | case IMPORT_NAME: | |
801 | case IMPORT_NAME_NOPREFIX: | |
802 | case IMPORT_NAME_UNDECORATE: | |
803 | break; | |
ee91ed79 | 804 | |
17505c5c NC |
805 | default: |
806 | _bfd_error_handler (_("%s: Unrecognised import name type; %x"), | |
8f615d07 | 807 | bfd_archive_filename (abfd), import_name_type); |
b34976b6 | 808 | return FALSE; |
17505c5c NC |
809 | } |
810 | ||
811 | /* Initialise local variables. | |
ee91ed79 | 812 | |
17505c5c NC |
813 | Note these are kept in a structure rather than being |
814 | declared as statics since bfd frowns on global variables. | |
ee91ed79 | 815 | |
17505c5c NC |
816 | We are going to construct the contents of the BFD in memory, |
817 | so allocate all the space that we will need right now. */ | |
dc810e39 | 818 | ptr = bfd_zalloc (abfd, (bfd_size_type) ILF_DATA_SIZE); |
17505c5c | 819 | if (ptr == NULL) |
b34976b6 | 820 | return FALSE; |
17505c5c NC |
821 | |
822 | /* Create a bfd_in_memory structure. */ | |
823 | vars.bim = (struct bfd_in_memory *) ptr; | |
824 | vars.bim->buffer = ptr; | |
825 | vars.bim->size = ILF_DATA_SIZE; | |
826 | ptr += sizeof (* vars.bim); | |
ee91ed79 | 827 | |
17505c5c NC |
828 | /* Initialise the pointers to regions of the memory and the |
829 | other contents of the pe_ILF_vars structure as well. */ | |
830 | vars.sym_cache = (coff_symbol_type *) ptr; | |
831 | vars.sym_ptr = (coff_symbol_type *) ptr; | |
832 | vars.sym_index = 0; | |
833 | ptr += SIZEOF_ILF_SYMS; | |
ee91ed79 | 834 | |
17505c5c NC |
835 | vars.sym_table = (unsigned int *) ptr; |
836 | vars.table_ptr = (unsigned int *) ptr; | |
837 | ptr += SIZEOF_ILF_SYM_TABLE; | |
838 | ||
839 | vars.native_syms = (combined_entry_type *) ptr; | |
840 | vars.native_ptr = (combined_entry_type *) ptr; | |
841 | ptr += SIZEOF_ILF_NATIVE_SYMS; | |
11c8a8d1 NC |
842 | |
843 | vars.sym_ptr_table = (coff_symbol_type **) ptr; | |
844 | vars.sym_ptr_ptr = (coff_symbol_type **) ptr; | |
845 | ptr += SIZEOF_ILF_SYM_PTR_TABLE; | |
ee91ed79 | 846 | |
17505c5c NC |
847 | vars.esym_table = (SYMENT *) ptr; |
848 | vars.esym_ptr = (SYMENT *) ptr; | |
849 | ptr += SIZEOF_ILF_EXT_SYMS; | |
ee91ed79 | 850 | |
17505c5c NC |
851 | vars.reltab = (arelent *) ptr; |
852 | vars.relcount = 0; | |
853 | ptr += SIZEOF_ILF_RELOCS; | |
854 | ||
855 | vars.int_reltab = (struct internal_reloc *) ptr; | |
856 | ptr += SIZEOF_ILF_INT_RELOCS; | |
857 | ||
858 | vars.string_table = ptr; | |
859 | vars.string_ptr = ptr + STRING_SIZE_SIZE; | |
860 | ptr += SIZEOF_ILF_STRINGS; | |
861 | vars.end_string_ptr = ptr; | |
ee91ed79 | 862 | |
17505c5c NC |
863 | /* The remaining space in bim->buffer is used |
864 | by the pe_ILF_make_a_section() function. */ | |
865 | vars.data = ptr; | |
866 | vars.abfd = abfd; | |
867 | vars.sec_index = 0; | |
868 | vars.magic = magic; | |
ee91ed79 | 869 | |
17505c5c | 870 | /* Create the initial .idata$<n> sections: |
11c8a8d1 | 871 | [.idata$2: Import Directory Table -- not needed] |
17505c5c NC |
872 | .idata$4: Import Lookup Table |
873 | .idata$5: Import Address Table | |
874 | ||
875 | Note we do not create a .idata$3 section as this is | |
876 | created for us by the linker script. */ | |
17505c5c NC |
877 | id4 = pe_ILF_make_a_section (& vars, ".idata$4", SIZEOF_IDATA4, 0); |
878 | id5 = pe_ILF_make_a_section (& vars, ".idata$5", SIZEOF_IDATA5, 0); | |
11c8a8d1 | 879 | if (id4 == NULL || id5 == NULL) |
b34976b6 | 880 | return FALSE; |
ee91ed79 | 881 | |
17505c5c NC |
882 | /* Fill in the contents of these sections. */ |
883 | if (import_name_type == IMPORT_ORDINAL) | |
884 | { | |
885 | if (ordinal == 0) | |
886 | /* XXX - treat as IMPORT_NAME ??? */ | |
887 | abort (); | |
ee91ed79 | 888 | |
fc633e5b AM |
889 | * (unsigned int *) id4->contents = ordinal | 0x80000000; |
890 | * (unsigned int *) id5->contents = ordinal | 0x80000000; | |
17505c5c NC |
891 | } |
892 | else | |
893 | { | |
894 | char * symbol; | |
ee91ed79 | 895 | |
17505c5c NC |
896 | /* Create .idata$6 - the Hint Name Table. */ |
897 | id6 = pe_ILF_make_a_section (& vars, ".idata$6", SIZEOF_IDATA6, 0); | |
898 | if (id6 == NULL) | |
b34976b6 | 899 | return FALSE; |
17505c5c NC |
900 | |
901 | /* If necessary, trim the import symbol name. */ | |
902 | symbol = symbol_name; | |
903 | ||
904 | if (import_name_type != IMPORT_NAME) | |
87cc7031 NC |
905 | { |
906 | bfd_boolean skipped_leading_underscore = FALSE; | |
907 | bfd_boolean skipped_leading_at = FALSE; | |
908 | bfd_boolean skipped_leading_question_mark = FALSE; | |
909 | bfd_boolean check_again; | |
910 | ||
911 | /* Skip any prefix in symbol_name. */ | |
912 | -- symbol; | |
913 | do | |
914 | { | |
915 | check_again = FALSE; | |
916 | ++ symbol; | |
917 | ||
918 | switch (*symbol) | |
919 | { | |
920 | case '@': | |
921 | if (! skipped_leading_at) | |
922 | check_again = skipped_leading_at = TRUE; | |
923 | break; | |
924 | case '?': | |
925 | if (! skipped_leading_question_mark) | |
926 | check_again = skipped_leading_question_mark = TRUE; | |
927 | break; | |
928 | case '_': | |
929 | if (! skipped_leading_underscore) | |
930 | check_again = skipped_leading_underscore = TRUE; | |
931 | break; | |
932 | default: | |
933 | break; | |
934 | } | |
935 | } | |
936 | while (check_again); | |
937 | } | |
938 | ||
17505c5c NC |
939 | if (import_name_type == IMPORT_NAME_UNDECORATE) |
940 | { | |
941 | /* Truncate at the first '@' */ | |
942 | while (* symbol != 0 && * symbol != '@') | |
943 | symbol ++; | |
944 | ||
945 | * symbol = 0; | |
946 | } | |
ee91ed79 | 947 | |
11c8a8d1 NC |
948 | id6->contents[0] = ordinal & 0xff; |
949 | id6->contents[1] = ordinal >> 8; | |
ee91ed79 | 950 | |
11c8a8d1 | 951 | strcpy (id6->contents + 2, symbol); |
17505c5c NC |
952 | } |
953 | ||
17505c5c NC |
954 | if (import_name_type != IMPORT_ORDINAL) |
955 | { | |
dc810e39 AM |
956 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6); |
957 | pe_ILF_save_relocs (&vars, id4); | |
ee91ed79 | 958 | |
dc810e39 AM |
959 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6); |
960 | pe_ILF_save_relocs (&vars, id5); | |
17505c5c NC |
961 | } |
962 | ||
963 | /* Create extra sections depending upon the type of import we are dealing with. */ | |
964 | switch (import_type) | |
965 | { | |
966 | int i; | |
ee91ed79 | 967 | |
17505c5c NC |
968 | case IMPORT_CODE: |
969 | /* Create a .text section. | |
970 | First we need to look up its contents in the jump table. */ | |
971 | for (i = NUM_ENTRIES (jtab); i--;) | |
972 | { | |
973 | if (jtab[i].size == 0) | |
974 | continue; | |
975 | if (jtab[i].magic == magic) | |
976 | break; | |
977 | } | |
978 | /* If we did not find a matching entry something is wrong. */ | |
979 | if (i < 0) | |
980 | abort (); | |
981 | ||
982 | /* Create the .text section. */ | |
983 | text = pe_ILF_make_a_section (& vars, ".text", jtab[i].size, SEC_CODE); | |
984 | if (text == NULL) | |
b34976b6 | 985 | return FALSE; |
17505c5c NC |
986 | |
987 | /* Copy in the jump code. */ | |
988 | memcpy (text->contents, jtab[i].data, jtab[i].size); | |
989 | ||
11c8a8d1 NC |
990 | /* Create an import symbol. */ |
991 | pe_ILF_make_a_symbol (& vars, "__imp_", symbol_name, id5, 0); | |
992 | imp_sym = vars.sym_ptr_ptr - 1; | |
993 | imp_index = vars.sym_index - 1; | |
ee91ed79 | 994 | |
17505c5c | 995 | /* Create a reloc for the data in the text section. */ |
ee91ed79 | 996 | #ifdef MIPS_ARCH_MAGIC_WINCE |
17505c5c NC |
997 | if (magic == MIPS_ARCH_MAGIC_WINCE) |
998 | { | |
dc810e39 | 999 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 0, BFD_RELOC_HI16_S, |
fc0a2244 | 1000 | (struct bfd_symbol **) imp_sym, |
dc810e39 AM |
1001 | imp_index); |
1002 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_LO16, text); | |
1003 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 4, BFD_RELOC_LO16, | |
fc0a2244 | 1004 | (struct bfd_symbol **) imp_sym, |
dc810e39 | 1005 | imp_index); |
17505c5c NC |
1006 | } |
1007 | else | |
1008 | #endif | |
dc810e39 AM |
1009 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) jtab[i].offset, |
1010 | BFD_RELOC_32, (asymbol **) imp_sym, | |
1011 | imp_index); | |
ee91ed79 | 1012 | |
17505c5c NC |
1013 | pe_ILF_save_relocs (& vars, text); |
1014 | break; | |
1015 | ||
1016 | case IMPORT_DATA: | |
1017 | break; | |
1018 | ||
1019 | default: | |
1020 | /* XXX code not yet written. */ | |
1021 | abort (); | |
1022 | } | |
ee91ed79 | 1023 | |
17505c5c NC |
1024 | /* Initialise the bfd. */ |
1025 | memset (& internal_f, 0, sizeof (internal_f)); | |
ee91ed79 | 1026 | |
17505c5c NC |
1027 | internal_f.f_magic = magic; |
1028 | internal_f.f_symptr = 0; | |
1029 | internal_f.f_nsyms = 0; | |
1030 | internal_f.f_flags = F_AR32WR | F_LNNO; /* XXX is this correct ? */ | |
ee91ed79 | 1031 | |
dc810e39 | 1032 | if ( ! bfd_set_start_address (abfd, (bfd_vma) 0) |
17505c5c | 1033 | || ! bfd_coff_set_arch_mach_hook (abfd, & internal_f)) |
b34976b6 | 1034 | return FALSE; |
17505c5c NC |
1035 | |
1036 | if (bfd_coff_mkobject_hook (abfd, (PTR) & internal_f, NULL) == NULL) | |
b34976b6 | 1037 | return FALSE; |
17505c5c NC |
1038 | |
1039 | coff_data (abfd)->pe = 1; | |
ee91ed79 | 1040 | #ifdef THUMBPEMAGIC |
17505c5c NC |
1041 | if (vars.magic == THUMBPEMAGIC) |
1042 | /* Stop some linker warnings about thumb code not supporting interworking. */ | |
1043 | coff_data (abfd)->flags |= F_INTERWORK | F_INTERWORK_SET; | |
1044 | #endif | |
ee91ed79 | 1045 | |
17505c5c NC |
1046 | /* Switch from file contents to memory contents. */ |
1047 | bfd_cache_close (abfd); | |
1048 | ||
1049 | abfd->iostream = (PTR) vars.bim; | |
1050 | abfd->flags |= BFD_IN_MEMORY /* | HAS_LOCALS */; | |
1051 | abfd->where = 0; | |
1052 | obj_sym_filepos (abfd) = 0; | |
1053 | ||
1054 | /* Now create a symbol describing the imported value. */ | |
1055 | switch (import_type) | |
1056 | { | |
1057 | case IMPORT_CODE: | |
1058 | pe_ILF_make_a_symbol (& vars, "", symbol_name, text, | |
1059 | BSF_NOT_AT_END | BSF_FUNCTION); | |
ee91ed79 | 1060 | |
11c8a8d1 NC |
1061 | /* Create an import symbol for the DLL, without the |
1062 | .dll suffix. */ | |
1063 | ptr = strrchr (source_dll, '.'); | |
1064 | if (ptr) | |
1065 | * ptr = 0; | |
1066 | pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0); | |
1067 | if (ptr) | |
1068 | * ptr = '.'; | |
17505c5c NC |
1069 | break; |
1070 | ||
1071 | case IMPORT_DATA: | |
11c8a8d1 | 1072 | /* Nothing to do here. */ |
17505c5c | 1073 | break; |
ee91ed79 | 1074 | |
17505c5c NC |
1075 | default: |
1076 | /* XXX code not yet written. */ | |
1077 | abort (); | |
1078 | } | |
1079 | ||
17505c5c NC |
1080 | /* Point the bfd at the symbol table. */ |
1081 | obj_symbols (abfd) = vars.sym_cache; | |
1082 | bfd_get_symcount (abfd) = vars.sym_index; | |
ee91ed79 | 1083 | |
17505c5c NC |
1084 | obj_raw_syments (abfd) = vars.native_syms; |
1085 | obj_raw_syment_count (abfd) = vars.sym_index; | |
1086 | ||
1087 | obj_coff_external_syms (abfd) = (PTR) vars.esym_table; | |
b34976b6 | 1088 | obj_coff_keep_syms (abfd) = TRUE; |
ee91ed79 | 1089 | |
17505c5c NC |
1090 | obj_convert (abfd) = vars.sym_table; |
1091 | obj_conv_table_size (abfd) = vars.sym_index; | |
ee91ed79 | 1092 | |
17505c5c | 1093 | obj_coff_strings (abfd) = vars.string_table; |
b34976b6 | 1094 | obj_coff_keep_strings (abfd) = TRUE; |
17505c5c NC |
1095 | |
1096 | abfd->flags |= HAS_SYMS; | |
1097 | ||
b34976b6 | 1098 | return TRUE; |
17505c5c NC |
1099 | } |
1100 | ||
1101 | /* We have detected a Image Library Format archive element. | |
1102 | Decode the element and return the appropriate target. */ | |
cb665cd3 | 1103 | static const bfd_target * |
17505c5c NC |
1104 | pe_ILF_object_p (bfd * abfd) |
1105 | { | |
1106 | bfd_byte buffer[16]; | |
1107 | bfd_byte * ptr; | |
1108 | bfd_byte * symbol_name; | |
1109 | bfd_byte * source_dll; | |
1110 | unsigned int machine; | |
dc810e39 | 1111 | bfd_size_type size; |
17505c5c NC |
1112 | unsigned int ordinal; |
1113 | unsigned int types; | |
dc810e39 | 1114 | unsigned int magic; |
ee91ed79 | 1115 | |
17505c5c NC |
1116 | /* Upon entry the first four buyes of the ILF header have |
1117 | already been read. Now read the rest of the header. */ | |
dc810e39 | 1118 | if (bfd_bread (buffer, (bfd_size_type) 16, abfd) != 16) |
17505c5c NC |
1119 | return NULL; |
1120 | ||
1121 | ptr = buffer; | |
ee91ed79 | 1122 | |
17505c5c | 1123 | /* We do not bother to check the version number. |
dc810e39 | 1124 | version = H_GET_16 (abfd, ptr); */ |
17505c5c NC |
1125 | ptr += 2; |
1126 | ||
dc810e39 | 1127 | machine = H_GET_16 (abfd, ptr); |
17505c5c NC |
1128 | ptr += 2; |
1129 | ||
1130 | /* Check that the machine type is recognised. */ | |
1131 | magic = 0; | |
ee91ed79 | 1132 | |
17505c5c NC |
1133 | switch (machine) |
1134 | { | |
1135 | case IMAGE_FILE_MACHINE_UNKNOWN: | |
1136 | case IMAGE_FILE_MACHINE_ALPHA: | |
1137 | case IMAGE_FILE_MACHINE_ALPHA64: | |
1138 | case IMAGE_FILE_MACHINE_IA64: | |
1139 | break; | |
ee91ed79 | 1140 | |
17505c5c NC |
1141 | case IMAGE_FILE_MACHINE_I386: |
1142 | #ifdef I386MAGIC | |
1143 | magic = I386MAGIC; | |
1144 | #endif | |
1145 | break; | |
ee91ed79 | 1146 | |
17505c5c NC |
1147 | case IMAGE_FILE_MACHINE_M68K: |
1148 | #ifdef MC68AGIC | |
1149 | magic = MC68MAGIC; | |
1150 | #endif | |
1151 | break; | |
ee91ed79 | 1152 | |
17505c5c NC |
1153 | case IMAGE_FILE_MACHINE_R3000: |
1154 | case IMAGE_FILE_MACHINE_R4000: | |
1155 | case IMAGE_FILE_MACHINE_R10000: | |
ee91ed79 | 1156 | |
17505c5c NC |
1157 | case IMAGE_FILE_MACHINE_MIPS16: |
1158 | case IMAGE_FILE_MACHINE_MIPSFPU: | |
1159 | case IMAGE_FILE_MACHINE_MIPSFPU16: | |
1160 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
1161 | magic = MIPS_ARCH_MAGIC_WINCE; | |
1162 | #endif | |
1163 | break; | |
ee91ed79 | 1164 | |
17505c5c NC |
1165 | case IMAGE_FILE_MACHINE_SH3: |
1166 | case IMAGE_FILE_MACHINE_SH4: | |
1167 | #ifdef SH_ARCH_MAGIC_WINCE | |
1168 | magic = SH_ARCH_MAGIC_WINCE; | |
1169 | #endif | |
1170 | break; | |
ee91ed79 | 1171 | |
17505c5c NC |
1172 | case IMAGE_FILE_MACHINE_ARM: |
1173 | #ifdef ARMPEMAGIC | |
1174 | magic = ARMPEMAGIC; | |
ee91ed79 | 1175 | #endif |
17505c5c | 1176 | break; |
ee91ed79 | 1177 | |
17505c5c NC |
1178 | case IMAGE_FILE_MACHINE_THUMB: |
1179 | #ifdef THUMBPEMAGIC | |
1180 | { | |
23ccc829 | 1181 | extern const bfd_target TARGET_LITTLE_SYM; |
ee91ed79 | 1182 | |
26bfd1c0 | 1183 | if (abfd->xvec == & TARGET_LITTLE_SYM) |
17505c5c NC |
1184 | magic = THUMBPEMAGIC; |
1185 | } | |
ee91ed79 | 1186 | #endif |
17505c5c | 1187 | break; |
ee91ed79 | 1188 | |
17505c5c NC |
1189 | case IMAGE_FILE_MACHINE_POWERPC: |
1190 | /* We no longer support PowerPC. */ | |
1191 | default: | |
1192 | _bfd_error_handler | |
1193 | ( | |
1194 | _("%s: Unrecognised machine type (0x%x) in Import Library Format archive"), | |
8f615d07 | 1195 | bfd_archive_filename (abfd), machine); |
17505c5c | 1196 | bfd_set_error (bfd_error_malformed_archive); |
ee91ed79 | 1197 | |
17505c5c NC |
1198 | return NULL; |
1199 | break; | |
1200 | } | |
1201 | ||
1202 | if (magic == 0) | |
1203 | { | |
1204 | _bfd_error_handler | |
1205 | ( | |
1206 | _("%s: Recognised but unhandled machine type (0x%x) in Import Library Format archive"), | |
8f615d07 | 1207 | bfd_archive_filename (abfd), machine); |
17505c5c | 1208 | bfd_set_error (bfd_error_wrong_format); |
ee91ed79 | 1209 | |
17505c5c | 1210 | return NULL; |
ee91ed79 | 1211 | } |
17505c5c NC |
1212 | |
1213 | /* We do not bother to check the date. | |
dc810e39 | 1214 | date = H_GET_32 (abfd, ptr); */ |
17505c5c | 1215 | ptr += 4; |
ee91ed79 | 1216 | |
dc810e39 | 1217 | size = H_GET_32 (abfd, ptr); |
17505c5c NC |
1218 | ptr += 4; |
1219 | ||
1220 | if (size == 0) | |
1221 | { | |
1222 | _bfd_error_handler | |
1223 | (_("%s: size field is zero in Import Library Format header"), | |
8f615d07 | 1224 | bfd_archive_filename (abfd)); |
17505c5c | 1225 | bfd_set_error (bfd_error_malformed_archive); |
ee91ed79 | 1226 | |
17505c5c NC |
1227 | return NULL; |
1228 | } | |
1229 | ||
dc810e39 | 1230 | ordinal = H_GET_16 (abfd, ptr); |
17505c5c NC |
1231 | ptr += 2; |
1232 | ||
dc810e39 | 1233 | types = H_GET_16 (abfd, ptr); |
17505c5c NC |
1234 | /* ptr += 2; */ |
1235 | ||
1236 | /* Now read in the two strings that follow. */ | |
1237 | ptr = bfd_alloc (abfd, size); | |
1238 | if (ptr == NULL) | |
1239 | return NULL; | |
ee91ed79 | 1240 | |
dc810e39 | 1241 | if (bfd_bread (ptr, size, abfd) != size) |
487e54f2 AM |
1242 | { |
1243 | bfd_release (abfd, ptr); | |
1244 | return NULL; | |
1245 | } | |
17505c5c NC |
1246 | |
1247 | symbol_name = ptr; | |
1248 | source_dll = ptr + strlen (ptr) + 1; | |
ee91ed79 | 1249 | |
17505c5c | 1250 | /* Verify that the strings are null terminated. */ |
11c8a8d1 | 1251 | if (ptr[size - 1] != 0 || ((unsigned long) (source_dll - ptr) >= size)) |
17505c5c NC |
1252 | { |
1253 | _bfd_error_handler | |
1254 | (_("%s: string not null terminated in ILF object file."), | |
8f615d07 | 1255 | bfd_archive_filename (abfd)); |
17505c5c | 1256 | bfd_set_error (bfd_error_malformed_archive); |
487e54f2 | 1257 | bfd_release (abfd, ptr); |
17505c5c NC |
1258 | return NULL; |
1259 | } | |
ee91ed79 | 1260 | |
17505c5c NC |
1261 | /* Now construct the bfd. */ |
1262 | if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name, | |
1263 | source_dll, ordinal, types)) | |
487e54f2 AM |
1264 | { |
1265 | bfd_release (abfd, ptr); | |
1266 | return NULL; | |
1267 | } | |
ee91ed79 | 1268 | |
17505c5c NC |
1269 | return abfd->xvec; |
1270 | } | |
1271 | ||
1272 | static const bfd_target * | |
1273 | pe_bfd_object_p (bfd * abfd) | |
cb665cd3 | 1274 | { |
cb665cd3 | 1275 | bfd_byte buffer[4]; |
15e0ecd9 L |
1276 | struct external_PEI_DOS_hdr dos_hdr; |
1277 | struct external_PEI_IMAGE_hdr image_hdr; | |
cb665cd3 | 1278 | file_ptr offset; |
cb665cd3 NC |
1279 | |
1280 | /* Detect if this a Microsoft Import Library Format element. */ | |
dc810e39 AM |
1281 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 |
1282 | || bfd_bread (buffer, (bfd_size_type) 4, abfd) != 4) | |
cb665cd3 NC |
1283 | { |
1284 | if (bfd_get_error () != bfd_error_system_call) | |
1285 | bfd_set_error (bfd_error_wrong_format); | |
1286 | return NULL; | |
1287 | } | |
ee91ed79 | 1288 | |
dc810e39 | 1289 | if (H_GET_32 (abfd, buffer) == 0xffff0000) |
17505c5c | 1290 | return pe_ILF_object_p (abfd); |
ee91ed79 | 1291 | |
dc810e39 AM |
1292 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 |
1293 | || bfd_bread (&dos_hdr, (bfd_size_type) sizeof (dos_hdr), abfd) | |
15e0ecd9 | 1294 | != sizeof (dos_hdr)) |
cb665cd3 NC |
1295 | { |
1296 | if (bfd_get_error () != bfd_error_system_call) | |
1297 | bfd_set_error (bfd_error_wrong_format); | |
1298 | return NULL; | |
1299 | } | |
1300 | ||
15e0ecd9 L |
1301 | /* There are really two magic numbers involved; the magic number |
1302 | that says this is a NT executable (PEI) and the magic number that | |
1303 | determines the architecture. The former is DOSMAGIC, stored in | |
1304 | the e_magic field. The latter is stored in the f_magic field. | |
1305 | If the NT magic number isn't valid, the architecture magic number | |
1306 | could be mimicked by some other field (specifically, the number | |
1307 | of relocs in section 3). Since this routine can only be called | |
1308 | correctly for a PEI file, check the e_magic number here, and, if | |
1309 | it doesn't match, clobber the f_magic number so that we don't get | |
1310 | a false match. */ | |
dc810e39 | 1311 | if (H_GET_16 (abfd, dos_hdr.e_magic) != DOSMAGIC) |
15e0ecd9 L |
1312 | { |
1313 | bfd_set_error (bfd_error_wrong_format); | |
1314 | return NULL; | |
1315 | } | |
cb665cd3 | 1316 | |
dc810e39 AM |
1317 | offset = H_GET_32 (abfd, dos_hdr.e_lfanew); |
1318 | if (bfd_seek (abfd, offset, SEEK_SET) != 0 | |
1319 | || (bfd_bread (&image_hdr, (bfd_size_type) sizeof (image_hdr), abfd) | |
1320 | != sizeof (image_hdr))) | |
cb665cd3 NC |
1321 | { |
1322 | if (bfd_get_error () != bfd_error_system_call) | |
1323 | bfd_set_error (bfd_error_wrong_format); | |
1324 | return NULL; | |
1325 | } | |
1326 | ||
dc810e39 | 1327 | if (H_GET_32 (abfd, image_hdr.nt_signature) != 0x4550) |
cb665cd3 NC |
1328 | { |
1329 | bfd_set_error (bfd_error_wrong_format); | |
1330 | return NULL; | |
1331 | } | |
ee91ed79 | 1332 | |
cb665cd3 | 1333 | /* Here is the hack. coff_object_p wants to read filhsz bytes to |
15e0ecd9 L |
1334 | pick up the COFF header for PE, see "struct external_PEI_filehdr" |
1335 | in include/coff/pe.h. We adjust so that that will work. */ | |
dc810e39 | 1336 | if (bfd_seek (abfd, (file_ptr) (offset - sizeof (dos_hdr)), SEEK_SET) != 0) |
cb665cd3 NC |
1337 | { |
1338 | if (bfd_get_error () != bfd_error_system_call) | |
1339 | bfd_set_error (bfd_error_wrong_format); | |
1340 | return NULL; | |
1341 | } | |
1342 | ||
1343 | return coff_object_p (abfd); | |
1344 | } | |
1345 | ||
1346 | #define coff_object_p pe_bfd_object_p | |
17505c5c | 1347 | #endif /* COFF_IMAGE_WITH_PE */ |