Commit | Line | Data |
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277d1b5e | 1 | /* Support for the generic parts of PE/PEI, for BFD. |
7898deda NC |
2 | Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
3 | Free Software Foundation, Inc. | |
277d1b5e | 4 | Written by Cygnus Solutions. |
252b5132 RH |
5 | |
6 | This file is part of BFD, the Binary File Descriptor library. | |
7 | ||
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. | |
12 | ||
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. | |
17 | ||
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. */ | |
21 | ||
22 | /* | |
23 | Most of this hacked by Steve Chamberlain, | |
24 | sac@cygnus.com | |
277d1b5e ILT |
25 | |
26 | PE/PEI rearrangement (and code added): Donn Terry | |
27 | Softway Systems, Inc. | |
252b5132 RH |
28 | */ |
29 | ||
30 | /* Hey look, some documentation [and in a place you expect to find it]! | |
31 | ||
32 | The main reference for the pei format is "Microsoft Portable Executable | |
33 | and Common Object File Format Specification 4.1". Get it if you need to | |
34 | do some serious hacking on this code. | |
35 | ||
36 | Another reference: | |
37 | "Peering Inside the PE: A Tour of the Win32 Portable Executable | |
38 | File Format", MSJ 1994, Volume 9. | |
39 | ||
40 | The *sole* difference between the pe format and the pei format is that the | |
41 | latter has an MSDOS 2.0 .exe header on the front that prints the message | |
42 | "This app must be run under Windows." (or some such). | |
43 | (FIXME: Whether that statement is *really* true or not is unknown. | |
44 | Are there more subtle differences between pe and pei formats? | |
45 | For now assume there aren't. If you find one, then for God sakes | |
46 | document it here!) | |
47 | ||
48 | The Microsoft docs use the word "image" instead of "executable" because | |
49 | the former can also refer to a DLL (shared library). Confusion can arise | |
50 | because the `i' in `pei' also refers to "image". The `pe' format can | |
51 | also create images (i.e. executables), it's just that to run on a win32 | |
52 | system you need to use the pei format. | |
53 | ||
54 | FIXME: Please add more docs here so the next poor fool that has to hack | |
55 | on this code has a chance of getting something accomplished without | |
56 | wasting too much time. | |
57 | */ | |
58 | ||
277d1b5e ILT |
59 | #include "libpei.h" |
60 | ||
252b5132 | 61 | static boolean (*pe_saved_coff_bfd_print_private_bfd_data) |
277d1b5e ILT |
62 | PARAMS ((bfd *, PTR)) = |
63 | #ifndef coff_bfd_print_private_bfd_data | |
64 | NULL; | |
252b5132 | 65 | #else |
277d1b5e ILT |
66 | coff_bfd_print_private_bfd_data; |
67 | #undef coff_bfd_print_private_bfd_data | |
252b5132 RH |
68 | #endif |
69 | ||
277d1b5e ILT |
70 | static boolean pe_print_private_bfd_data PARAMS ((bfd *, PTR)); |
71 | #define coff_bfd_print_private_bfd_data pe_print_private_bfd_data | |
252b5132 | 72 | |
277d1b5e ILT |
73 | static boolean (*pe_saved_coff_bfd_copy_private_bfd_data) |
74 | PARAMS ((bfd *, bfd *)) = | |
75 | #ifndef coff_bfd_copy_private_bfd_data | |
76 | NULL; | |
77 | #else | |
78 | coff_bfd_copy_private_bfd_data; | |
79 | #undef coff_bfd_copy_private_bfd_data | |
252b5132 RH |
80 | #endif |
81 | ||
277d1b5e ILT |
82 | static boolean pe_bfd_copy_private_bfd_data PARAMS ((bfd *, bfd *)); |
83 | #define coff_bfd_copy_private_bfd_data pe_bfd_copy_private_bfd_data | |
252b5132 | 84 | |
277d1b5e ILT |
85 | #define coff_mkobject pe_mkobject |
86 | #define coff_mkobject_hook pe_mkobject_hook | |
252b5132 | 87 | |
17505c5c | 88 | #ifndef NO_COFF_RELOCS |
252b5132 RH |
89 | static void coff_swap_reloc_in PARAMS ((bfd *, PTR, PTR)); |
90 | static unsigned int coff_swap_reloc_out PARAMS ((bfd *, PTR, PTR)); | |
17505c5c | 91 | #endif |
252b5132 | 92 | static void coff_swap_filehdr_in PARAMS ((bfd *, PTR, PTR)); |
252b5132 | 93 | static void coff_swap_scnhdr_in PARAMS ((bfd *, PTR, PTR)); |
252b5132 RH |
94 | static boolean pe_mkobject PARAMS ((bfd *)); |
95 | static PTR pe_mkobject_hook PARAMS ((bfd *, PTR, PTR)); | |
252b5132 | 96 | |
17505c5c NC |
97 | #ifdef COFF_IMAGE_WITH_PE |
98 | /* This structure contains static variables used by the ILF code. */ | |
99 | typedef asection * asection_ptr; | |
100 | ||
101 | typedef struct | |
102 | { | |
103 | bfd * abfd; | |
104 | bfd_byte * data; | |
105 | struct bfd_in_memory * bim; | |
106 | unsigned short magic; | |
ee91ed79 | 107 | |
17505c5c NC |
108 | arelent * reltab; |
109 | unsigned int relcount; | |
110 | ||
111 | coff_symbol_type * sym_cache; | |
112 | coff_symbol_type * sym_ptr; | |
113 | unsigned int sym_index; | |
ee91ed79 | 114 | |
17505c5c NC |
115 | unsigned int * sym_table; |
116 | unsigned int * table_ptr; | |
ee91ed79 | 117 | |
17505c5c NC |
118 | combined_entry_type * native_syms; |
119 | combined_entry_type * native_ptr; | |
120 | ||
11c8a8d1 NC |
121 | coff_symbol_type ** sym_ptr_table; |
122 | coff_symbol_type ** sym_ptr_ptr; | |
ee91ed79 | 123 | |
17505c5c NC |
124 | unsigned int sec_index; |
125 | ||
126 | char * string_table; | |
127 | char * string_ptr; | |
128 | char * end_string_ptr; | |
ee91ed79 | 129 | |
17505c5c NC |
130 | SYMENT * esym_table; |
131 | SYMENT * esym_ptr; | |
132 | ||
133 | struct internal_reloc * int_reltab; | |
134 | } | |
135 | pe_ILF_vars; | |
136 | ||
137 | static asection_ptr pe_ILF_make_a_section PARAMS ((pe_ILF_vars *, const char *, unsigned int, flagword)); | |
138 | static void pe_ILF_make_a_reloc PARAMS ((pe_ILF_vars *, bfd_vma, bfd_reloc_code_real_type, asection_ptr)); | |
139 | static void pe_ILF_make_a_symbol PARAMS ((pe_ILF_vars *, const char *, const char *, asection_ptr, flagword)); | |
140 | static void pe_ILF_save_relocs PARAMS ((pe_ILF_vars *, asection_ptr)); | |
23ccc829 | 141 | static void pe_ILF_make_a_symbol_reloc PARAMS ((pe_ILF_vars *, bfd_vma, bfd_reloc_code_real_type, struct symbol_cache_entry **, unsigned int)); |
17505c5c NC |
142 | static boolean pe_ILF_build_a_bfd PARAMS ((bfd *, unsigned short, bfd_byte *, bfd_byte *, unsigned int, unsigned int)); |
143 | static const bfd_target * pe_ILF_object_p PARAMS ((bfd *)); | |
11c8a8d1 | 144 | static const bfd_target * pe_bfd_object_p PARAMS ((bfd *)); |
17505c5c NC |
145 | #endif /* COFF_IMAGE_WITH_PE */ |
146 | ||
252b5132 RH |
147 | /**********************************************************************/ |
148 | ||
17505c5c | 149 | #ifndef NO_COFF_RELOCS |
252b5132 RH |
150 | static void |
151 | coff_swap_reloc_in (abfd, src, dst) | |
152 | bfd *abfd; | |
153 | PTR src; | |
154 | PTR dst; | |
155 | { | |
156 | RELOC *reloc_src = (RELOC *) src; | |
157 | struct internal_reloc *reloc_dst = (struct internal_reloc *) dst; | |
158 | ||
159 | reloc_dst->r_vaddr = bfd_h_get_32(abfd, (bfd_byte *)reloc_src->r_vaddr); | |
160 | reloc_dst->r_symndx = bfd_h_get_signed_32(abfd, (bfd_byte *) reloc_src->r_symndx); | |
161 | ||
162 | reloc_dst->r_type = bfd_h_get_16(abfd, (bfd_byte *) reloc_src->r_type); | |
163 | ||
164 | #ifdef SWAP_IN_RELOC_OFFSET | |
165 | reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET(abfd, | |
166 | (bfd_byte *) reloc_src->r_offset); | |
167 | #endif | |
168 | } | |
169 | ||
252b5132 RH |
170 | static unsigned int |
171 | coff_swap_reloc_out (abfd, src, dst) | |
172 | bfd *abfd; | |
173 | PTR src; | |
174 | PTR dst; | |
175 | { | |
176 | struct internal_reloc *reloc_src = (struct internal_reloc *)src; | |
177 | struct external_reloc *reloc_dst = (struct external_reloc *)dst; | |
178 | bfd_h_put_32(abfd, reloc_src->r_vaddr, (bfd_byte *) reloc_dst->r_vaddr); | |
179 | bfd_h_put_32(abfd, reloc_src->r_symndx, (bfd_byte *) reloc_dst->r_symndx); | |
180 | ||
181 | bfd_h_put_16(abfd, reloc_src->r_type, (bfd_byte *) | |
182 | reloc_dst->r_type); | |
183 | ||
184 | #ifdef SWAP_OUT_RELOC_OFFSET | |
185 | SWAP_OUT_RELOC_OFFSET(abfd, | |
186 | reloc_src->r_offset, | |
187 | (bfd_byte *) reloc_dst->r_offset); | |
188 | #endif | |
189 | #ifdef SWAP_OUT_RELOC_EXTRA | |
190 | SWAP_OUT_RELOC_EXTRA(abfd,reloc_src, reloc_dst); | |
191 | #endif | |
192 | return RELSZ; | |
193 | } | |
17505c5c | 194 | #endif /* not NO_COFF_RELOCS */ |
252b5132 RH |
195 | |
196 | static void | |
197 | coff_swap_filehdr_in (abfd, src, dst) | |
198 | bfd *abfd; | |
199 | PTR src; | |
200 | PTR dst; | |
201 | { | |
202 | FILHDR *filehdr_src = (FILHDR *) src; | |
203 | struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst; | |
204 | filehdr_dst->f_magic = bfd_h_get_16(abfd, (bfd_byte *) filehdr_src->f_magic); | |
205 | filehdr_dst->f_nscns = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_nscns); | |
206 | filehdr_dst->f_timdat = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_timdat); | |
207 | ||
208 | filehdr_dst->f_nsyms = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_nsyms); | |
209 | filehdr_dst->f_flags = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_flags); | |
210 | filehdr_dst->f_symptr = bfd_h_get_32 (abfd, (bfd_byte *) filehdr_src->f_symptr); | |
211 | ||
212 | /* Other people's tools sometimes generate headers with an nsyms but | |
213 | a zero symptr. */ | |
214 | if (filehdr_dst->f_nsyms != 0 && filehdr_dst->f_symptr == 0) | |
215 | { | |
216 | filehdr_dst->f_nsyms = 0; | |
217 | filehdr_dst->f_flags |= F_LSYMS; | |
218 | } | |
219 | ||
ee91ed79 | 220 | filehdr_dst->f_opthdr = bfd_h_get_16(abfd, |
252b5132 RH |
221 | (bfd_byte *)filehdr_src-> f_opthdr); |
222 | } | |
223 | ||
224 | #ifdef COFF_IMAGE_WITH_PE | |
cbff5e0d | 225 | # define coff_swap_filehdr_out _bfd_XXi_only_swap_filehdr_out |
252b5132 | 226 | #else |
cbff5e0d | 227 | # define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out |
252b5132 | 228 | #endif |
252b5132 | 229 | |
252b5132 | 230 | static void |
e166a60f ILT |
231 | coff_swap_scnhdr_in (abfd, ext, in) |
232 | bfd *abfd; | |
233 | PTR ext; | |
234 | PTR in; | |
252b5132 RH |
235 | { |
236 | SCNHDR *scnhdr_ext = (SCNHDR *) ext; | |
237 | struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in; | |
238 | ||
ee91ed79 | 239 | memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof (scnhdr_int->s_name)); |
252b5132 RH |
240 | scnhdr_int->s_vaddr = |
241 | GET_SCNHDR_VADDR (abfd, (bfd_byte *) scnhdr_ext->s_vaddr); | |
242 | scnhdr_int->s_paddr = | |
243 | GET_SCNHDR_PADDR (abfd, (bfd_byte *) scnhdr_ext->s_paddr); | |
244 | scnhdr_int->s_size = | |
245 | GET_SCNHDR_SIZE (abfd, (bfd_byte *) scnhdr_ext->s_size); | |
246 | scnhdr_int->s_scnptr = | |
247 | GET_SCNHDR_SCNPTR (abfd, (bfd_byte *) scnhdr_ext->s_scnptr); | |
248 | scnhdr_int->s_relptr = | |
249 | GET_SCNHDR_RELPTR (abfd, (bfd_byte *) scnhdr_ext->s_relptr); | |
250 | scnhdr_int->s_lnnoptr = | |
251 | GET_SCNHDR_LNNOPTR (abfd, (bfd_byte *) scnhdr_ext->s_lnnoptr); | |
252 | scnhdr_int->s_flags = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_flags); | |
253 | ||
cb43721d ILT |
254 | /* MS handles overflow of line numbers by carrying into the reloc |
255 | field (it appears). Since it's supposed to be zero for PE | |
256 | *IMAGE* format, that's safe. This is still a bit iffy. */ | |
257 | #ifdef COFF_IMAGE_WITH_PE | |
258 | scnhdr_int->s_nlnno = | |
259 | (bfd_h_get_16 (abfd, (bfd_byte *) scnhdr_ext->s_nlnno) | |
260 | + (bfd_h_get_16 (abfd, (bfd_byte *) scnhdr_ext->s_nreloc) << 16)); | |
261 | scnhdr_int->s_nreloc = 0; | |
262 | #else | |
263 | scnhdr_int->s_nreloc = bfd_h_get_16 (abfd, | |
264 | (bfd_byte *) scnhdr_ext->s_nreloc); | |
265 | scnhdr_int->s_nlnno = bfd_h_get_16 (abfd, | |
266 | (bfd_byte *) scnhdr_ext->s_nlnno); | |
267 | #endif | |
252b5132 | 268 | |
ee91ed79 | 269 | if (scnhdr_int->s_vaddr != 0) |
252b5132 RH |
270 | { |
271 | scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase; | |
272 | scnhdr_int->s_vaddr &= 0xffffffff; | |
273 | } | |
e166a60f | 274 | |
17505c5c | 275 | #ifndef COFF_NO_HACK_SCNHDR_SIZE |
e166a60f ILT |
276 | /* If this section holds uninitialized data, use the virtual size |
277 | (stored in s_paddr) instead of the physical size. */ | |
278 | if ((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0) | |
252b5132 RH |
279 | { |
280 | scnhdr_int->s_size = scnhdr_int->s_paddr; | |
e166a60f ILT |
281 | /* This code used to set scnhdr_int->s_paddr to 0. However, |
282 | coff_set_alignment_hook stores s_paddr in virt_size, which | |
283 | only works if it correctly holds the virtual size of the | |
284 | section. */ | |
252b5132 | 285 | } |
17505c5c | 286 | #endif |
252b5132 RH |
287 | } |
288 | ||
252b5132 RH |
289 | static boolean |
290 | pe_mkobject (abfd) | |
291 | bfd * abfd; | |
292 | { | |
293 | pe_data_type *pe; | |
ee91ed79 | 294 | abfd->tdata.pe_obj_data = |
252b5132 RH |
295 | (struct pe_tdata *) bfd_zalloc (abfd, sizeof (pe_data_type)); |
296 | ||
297 | if (abfd->tdata.pe_obj_data == 0) | |
298 | return false; | |
299 | ||
300 | pe = pe_data (abfd); | |
301 | ||
302 | pe->coff.pe = 1; | |
277d1b5e ILT |
303 | |
304 | /* in_reloc_p is architecture dependent. */ | |
252b5132 | 305 | pe->in_reloc_p = in_reloc_p; |
cbff5e0d DD |
306 | |
307 | #ifdef PEI_FORCE_MINIMUM_ALIGNMENT | |
308 | pe->force_minimum_alignment = 1; | |
309 | #endif | |
310 | #ifdef PEI_TARGET_SUBSYSTEM | |
311 | pe->target_subsystem = PEI_TARGET_SUBSYSTEM; | |
312 | #endif | |
313 | ||
252b5132 RH |
314 | return true; |
315 | } | |
316 | ||
317 | /* Create the COFF backend specific information. */ | |
318 | static PTR | |
319 | pe_mkobject_hook (abfd, filehdr, aouthdr) | |
320 | bfd * abfd; | |
321 | PTR filehdr; | |
5f771d47 | 322 | PTR aouthdr ATTRIBUTE_UNUSED; |
252b5132 RH |
323 | { |
324 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
325 | pe_data_type *pe; | |
326 | ||
327 | if (pe_mkobject (abfd) == false) | |
328 | return NULL; | |
329 | ||
330 | pe = pe_data (abfd); | |
331 | pe->coff.sym_filepos = internal_f->f_symptr; | |
332 | /* These members communicate important constants about the symbol | |
333 | table to GDB's symbol-reading code. These `constants' | |
334 | unfortunately vary among coff implementations... */ | |
335 | pe->coff.local_n_btmask = N_BTMASK; | |
336 | pe->coff.local_n_btshft = N_BTSHFT; | |
337 | pe->coff.local_n_tmask = N_TMASK; | |
338 | pe->coff.local_n_tshift = N_TSHIFT; | |
339 | pe->coff.local_symesz = SYMESZ; | |
340 | pe->coff.local_auxesz = AUXESZ; | |
341 | pe->coff.local_linesz = LINESZ; | |
342 | ||
1135238b ILT |
343 | pe->coff.timestamp = internal_f->f_timdat; |
344 | ||
252b5132 RH |
345 | obj_raw_syment_count (abfd) = |
346 | obj_conv_table_size (abfd) = | |
347 | internal_f->f_nsyms; | |
348 | ||
349 | pe->real_flags = internal_f->f_flags; | |
350 | ||
351 | if ((internal_f->f_flags & F_DLL) != 0) | |
352 | pe->dll = 1; | |
353 | ||
4cfec37b ILT |
354 | if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) |
355 | abfd->flags |= HAS_DEBUG; | |
356 | ||
252b5132 | 357 | #ifdef COFF_IMAGE_WITH_PE |
ee91ed79 | 358 | if (aouthdr) |
252b5132 RH |
359 | pe->pe_opthdr = ((struct internal_aouthdr *)aouthdr)->pe; |
360 | #endif | |
361 | ||
ee91ed79 | 362 | #ifdef ARM |
252b5132 RH |
363 | if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) |
364 | coff_data (abfd) ->flags = 0; | |
365 | #endif | |
ee91ed79 | 366 | |
252b5132 RH |
367 | return (PTR) pe; |
368 | } | |
369 | ||
277d1b5e ILT |
370 | static boolean |
371 | pe_print_private_bfd_data (abfd, vfile) | |
372 | bfd *abfd; | |
373 | PTR vfile; | |
374 | { | |
375 | FILE *file = (FILE *) vfile; | |
376 | ||
cbff5e0d | 377 | if (!_bfd_XX_print_private_bfd_data_common (abfd, vfile)) |
277d1b5e | 378 | return false; |
252b5132 | 379 | |
277d1b5e ILT |
380 | if (pe_saved_coff_bfd_print_private_bfd_data != NULL) |
381 | { | |
382 | fputc ('\n', file); | |
383 | ||
384 | return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile); | |
385 | } | |
386 | ||
387 | return true; | |
388 | } | |
252b5132 RH |
389 | |
390 | /* Copy any private info we understand from the input bfd | |
391 | to the output bfd. */ | |
392 | ||
252b5132 RH |
393 | static boolean |
394 | pe_bfd_copy_private_bfd_data (ibfd, obfd) | |
395 | bfd *ibfd, *obfd; | |
396 | { | |
cbff5e0d | 397 | if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd, obfd)) |
277d1b5e | 398 | return false; |
252b5132 RH |
399 | |
400 | if (pe_saved_coff_bfd_copy_private_bfd_data) | |
401 | return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd); | |
252b5132 RH |
402 | |
403 | return true; | |
404 | } | |
405 | ||
277d1b5e | 406 | #define coff_bfd_copy_private_section_data \ |
cbff5e0d | 407 | _bfd_XX_bfd_copy_private_section_data |
7d2b58d6 | 408 | |
cbff5e0d | 409 | #define coff_get_symbol_info _bfd_XX_get_symbol_info |
cb665cd3 | 410 | |
b1f10154 | 411 | #ifdef COFF_IMAGE_WITH_PE |
17505c5c NC |
412 | \f |
413 | /* Code to handle Microsoft's Image Library Format. | |
414 | Also known as LINK6 format. | |
ee91ed79 | 415 | Documentation about this format can be found at: |
17505c5c NC |
416 | |
417 | http://msdn.microsoft.com/library/specs/pecoff_section8.htm */ | |
418 | ||
419 | /* The following constants specify the sizes of the various data | |
420 | structures that we have to create in order to build a bfd describing | |
421 | an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6 | |
422 | and SIZEOF_IDATA7 below is to allow for the possibility that we might | |
423 | need a padding byte in order to ensure 16 bit alignment for the section's | |
424 | contents. | |
425 | ||
426 | The value for SIZEOF_ILF_STRINGS is computed as follows: | |
427 | ||
428 | There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters | |
11c8a8d1 | 429 | per symbol for their names (longest section name is .idata$x). |
17505c5c NC |
430 | |
431 | There will be two symbols for the imported value, one the symbol name | |
432 | and one with _imp__ prefixed. Allowing for the terminating nul's this | |
11c8a8d1 | 433 | is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll). |
17505c5c NC |
434 | |
435 | The strings in the string table must start STRING__SIZE_SIZE bytes into | |
436 | the table in order to for the string lookup code in coffgen/coffcode to | |
437 | work. */ | |
438 | #define NUM_ILF_RELOCS 8 | |
439 | #define NUM_ILF_SECTIONS 6 | |
440 | #define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS) | |
ee91ed79 | 441 | |
17505c5c NC |
442 | #define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache)) |
443 | #define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table)) | |
444 | #define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms)) | |
11c8a8d1 | 445 | #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table)) |
17505c5c NC |
446 | #define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table)) |
447 | #define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab)) | |
448 | #define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab)) | |
11c8a8d1 NC |
449 | #define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \ |
450 | + 21 + strlen (source_dll) \ | |
451 | + NUM_ILF_SECTIONS * 9 \ | |
452 | + STRING_SIZE_SIZE) | |
17505c5c NC |
453 | #define SIZEOF_IDATA2 (5 * 4) |
454 | #define SIZEOF_IDATA4 (1 * 4) | |
455 | #define SIZEOF_IDATA5 (1 * 4) | |
456 | #define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1) | |
457 | #define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1) | |
458 | #define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata)) | |
ee91ed79 | 459 | |
17505c5c NC |
460 | #define ILF_DATA_SIZE \ |
461 | sizeof (* vars.bim) \ | |
462 | + SIZEOF_ILF_SYMS \ | |
463 | + SIZEOF_ILF_SYM_TABLE \ | |
464 | + SIZEOF_ILF_NATIVE_SYMS \ | |
11c8a8d1 | 465 | + SIZEOF_ILF_SYM_PTR_TABLE \ |
17505c5c NC |
466 | + SIZEOF_ILF_EXT_SYMS \ |
467 | + SIZEOF_ILF_RELOCS \ | |
468 | + SIZEOF_ILF_INT_RELOCS \ | |
469 | + SIZEOF_ILF_STRINGS \ | |
470 | + SIZEOF_IDATA2 \ | |
471 | + SIZEOF_IDATA4 \ | |
472 | + SIZEOF_IDATA5 \ | |
473 | + SIZEOF_IDATA6 \ | |
474 | + SIZEOF_IDATA7 \ | |
475 | + SIZEOF_ILF_SECTIONS \ | |
476 | + MAX_TEXT_SECTION_SIZE | |
477 | ||
17505c5c NC |
478 | /* Create an empty relocation against the given symbol. */ |
479 | static void | |
11c8a8d1 NC |
480 | pe_ILF_make_a_symbol_reloc (pe_ILF_vars * vars, |
481 | bfd_vma address, | |
482 | bfd_reloc_code_real_type reloc, | |
483 | struct symbol_cache_entry ** sym, | |
484 | unsigned int sym_index) | |
17505c5c NC |
485 | { |
486 | arelent * entry; | |
487 | struct internal_reloc * internal; | |
488 | ||
489 | entry = vars->reltab + vars->relcount; | |
490 | internal = vars->int_reltab + vars->relcount; | |
ee91ed79 | 491 | |
17505c5c NC |
492 | entry->address = address; |
493 | entry->addend = 0; | |
494 | entry->howto = bfd_reloc_type_lookup (vars->abfd, reloc); | |
11c8a8d1 | 495 | entry->sym_ptr_ptr = sym; |
17505c5c NC |
496 | |
497 | internal->r_vaddr = address; | |
11c8a8d1 | 498 | internal->r_symndx = sym_index; |
17505c5c NC |
499 | internal->r_type = entry->howto->type; |
500 | #if 0 /* These fields do not need to be initialised. */ | |
501 | internal->r_size = 0; | |
502 | internal->r_extern = 0; | |
503 | internal->r_offset = 0; | |
504 | #endif | |
ee91ed79 | 505 | |
17505c5c | 506 | vars->relcount ++; |
ee91ed79 | 507 | |
17505c5c NC |
508 | BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS); |
509 | } | |
510 | ||
11c8a8d1 NC |
511 | /* Create an empty relocation against the given section. */ |
512 | static void | |
513 | pe_ILF_make_a_reloc (pe_ILF_vars * vars, | |
514 | bfd_vma address, | |
515 | bfd_reloc_code_real_type reloc, | |
516 | asection_ptr sec) | |
517 | { | |
518 | pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr, | |
519 | coff_section_data (vars->abfd, sec)->i); | |
520 | } | |
521 | ||
17505c5c NC |
522 | /* Move the queued relocs into the given section. */ |
523 | static void | |
524 | pe_ILF_save_relocs (pe_ILF_vars * vars, | |
525 | asection_ptr sec) | |
526 | { | |
527 | /* Make sure that there is somewhere to store the internal relocs. */ | |
528 | if (coff_section_data (vars->abfd, sec) == NULL) | |
529 | /* We should probably return an error indication here. */ | |
530 | abort (); | |
531 | ||
532 | coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab; | |
533 | coff_section_data (vars->abfd, sec)->keep_relocs = true; | |
534 | ||
535 | sec->relocation = vars->reltab; | |
536 | sec->reloc_count = vars->relcount; | |
537 | sec->flags |= SEC_RELOC; | |
538 | ||
539 | vars->reltab += vars->relcount; | |
540 | vars->int_reltab += vars->relcount; | |
541 | vars->relcount = 0; | |
542 | ||
543 | BFD_ASSERT ((bfd_byte *)vars->int_reltab < (bfd_byte *)vars->string_table); | |
544 | } | |
545 | ||
546 | /* Create a global symbol and add it to the relevant tables. */ | |
547 | static void | |
548 | pe_ILF_make_a_symbol (pe_ILF_vars * vars, | |
549 | const char * prefix, | |
550 | const char * symbol_name, | |
551 | asection_ptr section, | |
552 | flagword extra_flags) | |
553 | { | |
554 | coff_symbol_type * sym; | |
555 | combined_entry_type * ent; | |
556 | SYMENT * esym; | |
557 | unsigned short sclass; | |
558 | ||
559 | if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 560 | sclass = C_STAT; |
17505c5c NC |
561 | else |
562 | sclass = C_EXT; | |
ee91ed79 KH |
563 | |
564 | #ifdef THUMBPEMAGIC | |
17505c5c NC |
565 | if (vars->magic == THUMBPEMAGIC) |
566 | { | |
567 | if (extra_flags & BSF_FUNCTION) | |
568 | sclass = C_THUMBEXTFUNC; | |
569 | else if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 570 | sclass = C_THUMBSTAT; |
17505c5c NC |
571 | else |
572 | sclass = C_THUMBEXT; | |
573 | } | |
574 | #endif | |
575 | ||
576 | BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS); | |
ee91ed79 | 577 | |
17505c5c NC |
578 | sym = vars->sym_ptr; |
579 | ent = vars->native_ptr; | |
580 | esym = vars->esym_ptr; | |
581 | ||
582 | /* Copy the symbol's name into the string table. */ | |
583 | sprintf (vars->string_ptr, "%s%s", prefix, symbol_name); | |
584 | ||
10821322 NC |
585 | if (section == NULL) |
586 | section = (asection_ptr) & bfd_und_section; | |
ee91ed79 | 587 | |
17505c5c NC |
588 | /* Initialise the external symbol. */ |
589 | bfd_h_put_32 (vars->abfd, vars->string_ptr - vars->string_table, (bfd_byte *) esym->e.e.e_offset); | |
10821322 | 590 | bfd_h_put_16 (vars->abfd, section->target_index, (bfd_byte *) esym->e_scnum); |
17505c5c NC |
591 | esym->e_sclass[0] = sclass; |
592 | ||
593 | /* The following initialisations are unnecessary - the memory is | |
594 | zero initialised. They are just kept here as reminders. */ | |
595 | #if 0 | |
596 | esym->e.e.e_zeroes = 0; | |
597 | esym->e_value = 0; | |
598 | esym->e_type = T_NULL; | |
599 | esym->e_numaux = 0; | |
600 | #endif | |
ee91ed79 | 601 | |
17505c5c NC |
602 | /* Initialise the internal symbol structure. */ |
603 | ent->u.syment.n_sclass = sclass; | |
10821322 | 604 | ent->u.syment.n_scnum = section->target_index; |
17505c5c | 605 | ent->u.syment._n._n_n._n_offset = (long) sym; |
ee91ed79 | 606 | |
17505c5c NC |
607 | #if 0 /* See comment above. */ |
608 | ent->u.syment.n_value = 0; | |
609 | ent->u.syment.n_flags = 0; | |
610 | ent->u.syment.n_type = T_NULL; | |
611 | ent->u.syment.n_numaux = 0; | |
612 | ent->fix_value = 0; | |
613 | #endif | |
ee91ed79 | 614 | |
17505c5c NC |
615 | sym->symbol.the_bfd = vars->abfd; |
616 | sym->symbol.name = vars->string_ptr; | |
617 | sym->symbol.flags = BSF_EXPORT | BSF_GLOBAL | extra_flags; | |
618 | sym->symbol.section = section; | |
619 | sym->native = ent; | |
ee91ed79 | 620 | |
17505c5c NC |
621 | #if 0 /* See comment above. */ |
622 | sym->symbol.value = 0; | |
623 | sym->symbol.udata.i = 0; | |
624 | sym->done_lineno = false; | |
625 | sym->lineno = NULL; | |
626 | #endif | |
ee91ed79 | 627 | |
17505c5c | 628 | * vars->table_ptr = vars->sym_index; |
11c8a8d1 | 629 | * vars->sym_ptr_ptr = sym; |
ee91ed79 | 630 | |
17505c5c NC |
631 | /* Adjust pointers for the next symbol. */ |
632 | vars->sym_index ++; | |
633 | vars->sym_ptr ++; | |
11c8a8d1 | 634 | vars->sym_ptr_ptr ++; |
17505c5c NC |
635 | vars->table_ptr ++; |
636 | vars->native_ptr ++; | |
637 | vars->esym_ptr ++; | |
11c8a8d1 | 638 | vars->string_ptr += strlen (symbol_name) + strlen (prefix) + 1; |
17505c5c NC |
639 | |
640 | BFD_ASSERT (vars->string_ptr < vars->end_string_ptr); | |
641 | } | |
642 | ||
643 | /* Create a section. */ | |
644 | static asection_ptr | |
645 | pe_ILF_make_a_section (pe_ILF_vars * vars, | |
646 | const char * name, | |
647 | unsigned int size, | |
648 | flagword extra_flags) | |
649 | { | |
650 | asection_ptr sec; | |
651 | flagword flags; | |
ee91ed79 | 652 | |
17505c5c NC |
653 | sec = bfd_make_section_old_way (vars->abfd, name); |
654 | if (sec == NULL) | |
655 | return NULL; | |
ee91ed79 | 656 | |
17505c5c | 657 | flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY; |
ee91ed79 | 658 | |
17505c5c | 659 | bfd_set_section_flags (vars->abfd, sec, flags | extra_flags); |
ee91ed79 | 660 | |
17505c5c | 661 | bfd_set_section_alignment (vars->abfd, sec, 2); |
ee91ed79 | 662 | |
17505c5c NC |
663 | /* Check that we will not run out of space. */ |
664 | BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 665 | |
17505c5c NC |
666 | /* Set the section size and contents. The actual |
667 | contents are filled in by our parent. */ | |
668 | bfd_set_section_size (vars->abfd, sec, size); | |
669 | sec->contents = vars->data; | |
670 | sec->target_index = vars->sec_index ++; | |
671 | ||
672 | /* Advance data pointer in the vars structure. */ | |
673 | vars->data += size; | |
ee91ed79 | 674 | |
17505c5c NC |
675 | /* Skip the padding byte if it was not needed. |
676 | The logic here is that if the string length is odd, | |
677 | then the entire string length, including the null byte, | |
678 | is even and so the extra, padding byte, is not needed. */ | |
679 | if (size & 1) | |
680 | vars->data --; | |
ee91ed79 | 681 | |
17505c5c NC |
682 | /* Create a coff_section_tdata structure for our use. */ |
683 | sec->used_by_bfd = (struct coff_section_tdata *) vars->data; | |
684 | vars->data += sizeof (struct coff_section_tdata); | |
685 | ||
686 | BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 687 | |
17505c5c NC |
688 | /* Create a symbol to refer to this section. */ |
689 | pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL); | |
690 | ||
11c8a8d1 | 691 | /* Cache the index to the symbol in the coff_section_data structure. */ |
17505c5c | 692 | coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1; |
ee91ed79 | 693 | |
17505c5c NC |
694 | return sec; |
695 | } | |
696 | ||
697 | /* This structure contains the code that goes into the .text section | |
698 | in order to perform a jump into the DLL lookup table. The entries | |
699 | in the table are index by the magic number used to represent the | |
700 | machine type in the PE file. The contents of the data[] arrays in | |
701 | these entries are stolen from the jtab[] arrays in ld/pe-dll.c. | |
702 | The SIZE field says how many bytes in the DATA array are actually | |
703 | used. The OFFSET field says where in the data array the address | |
704 | of the .idata$5 section should be placed. */ | |
705 | #define MAX_TEXT_SECTION_SIZE 32 | |
706 | ||
707 | typedef struct | |
708 | { | |
709 | unsigned short magic; | |
710 | unsigned char data[MAX_TEXT_SECTION_SIZE]; | |
711 | unsigned int size; | |
712 | unsigned int offset; | |
713 | } | |
714 | jump_table; | |
715 | ||
86033394 | 716 | static jump_table jtab[] = |
17505c5c NC |
717 | { |
718 | #ifdef I386MAGIC | |
719 | { I386MAGIC, | |
720 | { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, | |
721 | 8, 2 | |
722 | }, | |
723 | #endif | |
ee91ed79 | 724 | |
17505c5c NC |
725 | #ifdef MC68MAGIC |
726 | { MC68MAGIC, { /* XXX fill me in */ }, 0, 0 }, | |
727 | #endif | |
728 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
729 | { MIPS_ARCH_MAGIC_WINCE, | |
730 | { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, | |
731 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 }, | |
732 | 16, 0 | |
733 | }, | |
734 | #endif | |
ee91ed79 | 735 | |
17505c5c NC |
736 | #ifdef SH_ARCH_MAGIC_WINCE |
737 | { SH_ARCH_MAGIC_WINCE, | |
738 | { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, | |
739 | 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 }, | |
740 | 12, 8 | |
741 | }, | |
742 | #endif | |
ee91ed79 | 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 | |
759 | { 0, { 0 }, 0, 0 } | |
760 | }; | |
761 | ||
762 | #ifndef NUM_ENTRIES | |
763 | #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0]) | |
764 | #endif | |
765 | ||
766 | /* Build a full BFD from the information supplied in a ILF object. */ | |
767 | static boolean | |
768 | pe_ILF_build_a_bfd (bfd * abfd, | |
769 | unsigned short magic, | |
770 | bfd_byte * symbol_name, | |
771 | bfd_byte * source_dll, | |
772 | unsigned int ordinal, | |
773 | unsigned int types) | |
ee91ed79 | 774 | { |
17505c5c NC |
775 | bfd_byte * ptr; |
776 | pe_ILF_vars vars; | |
777 | struct internal_filehdr internal_f; | |
778 | unsigned int import_type; | |
779 | unsigned int import_name_type; | |
11c8a8d1 NC |
780 | asection_ptr id4, id5, id6 = NULL, text = NULL; |
781 | coff_symbol_type ** imp_sym; | |
782 | unsigned int imp_index; | |
17505c5c | 783 | |
17505c5c NC |
784 | /* Decode and verify the types field of the ILF structure. */ |
785 | import_type = types & 0x3; | |
786 | import_name_type = (types & 0x1c) >> 2; | |
787 | ||
788 | switch (import_type) | |
789 | { | |
790 | case IMPORT_CODE: | |
791 | case IMPORT_DATA: | |
792 | break; | |
ee91ed79 | 793 | |
17505c5c NC |
794 | case IMPORT_CONST: |
795 | /* XXX code yet to be written. */ | |
796 | _bfd_error_handler (_("%s: Unhandled import type; %x"), | |
797 | bfd_get_filename (abfd), import_type); | |
798 | return false; | |
ee91ed79 | 799 | |
17505c5c NC |
800 | default: |
801 | _bfd_error_handler (_("%s: Unrecognised import type; %x"), | |
802 | bfd_get_filename (abfd), import_type); | |
803 | return false; | |
804 | } | |
805 | ||
806 | switch (import_name_type) | |
807 | { | |
808 | case IMPORT_ORDINAL: | |
809 | case IMPORT_NAME: | |
810 | case IMPORT_NAME_NOPREFIX: | |
811 | case IMPORT_NAME_UNDECORATE: | |
812 | break; | |
ee91ed79 | 813 | |
17505c5c NC |
814 | default: |
815 | _bfd_error_handler (_("%s: Unrecognised import name type; %x"), | |
816 | bfd_get_filename (abfd), import_name_type); | |
817 | return false; | |
818 | } | |
819 | ||
820 | /* Initialise local variables. | |
ee91ed79 | 821 | |
17505c5c NC |
822 | Note these are kept in a structure rather than being |
823 | declared as statics since bfd frowns on global variables. | |
ee91ed79 | 824 | |
17505c5c NC |
825 | We are going to construct the contents of the BFD in memory, |
826 | so allocate all the space that we will need right now. */ | |
827 | ptr = bfd_zalloc (abfd, ILF_DATA_SIZE); | |
828 | if (ptr == NULL) | |
829 | return false; | |
830 | ||
831 | /* Create a bfd_in_memory structure. */ | |
832 | vars.bim = (struct bfd_in_memory *) ptr; | |
833 | vars.bim->buffer = ptr; | |
834 | vars.bim->size = ILF_DATA_SIZE; | |
835 | ptr += sizeof (* vars.bim); | |
ee91ed79 | 836 | |
17505c5c NC |
837 | /* Initialise the pointers to regions of the memory and the |
838 | other contents of the pe_ILF_vars structure as well. */ | |
839 | vars.sym_cache = (coff_symbol_type *) ptr; | |
840 | vars.sym_ptr = (coff_symbol_type *) ptr; | |
841 | vars.sym_index = 0; | |
842 | ptr += SIZEOF_ILF_SYMS; | |
ee91ed79 | 843 | |
17505c5c NC |
844 | vars.sym_table = (unsigned int *) ptr; |
845 | vars.table_ptr = (unsigned int *) ptr; | |
846 | ptr += SIZEOF_ILF_SYM_TABLE; | |
847 | ||
848 | vars.native_syms = (combined_entry_type *) ptr; | |
849 | vars.native_ptr = (combined_entry_type *) ptr; | |
850 | ptr += SIZEOF_ILF_NATIVE_SYMS; | |
11c8a8d1 NC |
851 | |
852 | vars.sym_ptr_table = (coff_symbol_type **) ptr; | |
853 | vars.sym_ptr_ptr = (coff_symbol_type **) ptr; | |
854 | ptr += SIZEOF_ILF_SYM_PTR_TABLE; | |
ee91ed79 | 855 | |
17505c5c NC |
856 | vars.esym_table = (SYMENT *) ptr; |
857 | vars.esym_ptr = (SYMENT *) ptr; | |
858 | ptr += SIZEOF_ILF_EXT_SYMS; | |
ee91ed79 | 859 | |
17505c5c NC |
860 | vars.reltab = (arelent *) ptr; |
861 | vars.relcount = 0; | |
862 | ptr += SIZEOF_ILF_RELOCS; | |
863 | ||
864 | vars.int_reltab = (struct internal_reloc *) ptr; | |
865 | ptr += SIZEOF_ILF_INT_RELOCS; | |
866 | ||
867 | vars.string_table = ptr; | |
868 | vars.string_ptr = ptr + STRING_SIZE_SIZE; | |
869 | ptr += SIZEOF_ILF_STRINGS; | |
870 | vars.end_string_ptr = ptr; | |
ee91ed79 | 871 | |
17505c5c NC |
872 | /* The remaining space in bim->buffer is used |
873 | by the pe_ILF_make_a_section() function. */ | |
874 | vars.data = ptr; | |
875 | vars.abfd = abfd; | |
876 | vars.sec_index = 0; | |
877 | vars.magic = magic; | |
ee91ed79 | 878 | |
17505c5c | 879 | /* Create the initial .idata$<n> sections: |
11c8a8d1 | 880 | [.idata$2: Import Directory Table -- not needed] |
17505c5c NC |
881 | .idata$4: Import Lookup Table |
882 | .idata$5: Import Address Table | |
883 | ||
884 | Note we do not create a .idata$3 section as this is | |
885 | created for us by the linker script. */ | |
17505c5c NC |
886 | id4 = pe_ILF_make_a_section (& vars, ".idata$4", SIZEOF_IDATA4, 0); |
887 | id5 = pe_ILF_make_a_section (& vars, ".idata$5", SIZEOF_IDATA5, 0); | |
11c8a8d1 | 888 | if (id4 == NULL || id5 == NULL) |
17505c5c | 889 | return false; |
ee91ed79 | 890 | |
17505c5c NC |
891 | /* Fill in the contents of these sections. */ |
892 | if (import_name_type == IMPORT_ORDINAL) | |
893 | { | |
894 | if (ordinal == 0) | |
895 | /* XXX - treat as IMPORT_NAME ??? */ | |
896 | abort (); | |
ee91ed79 | 897 | |
fc633e5b AM |
898 | * (unsigned int *) id4->contents = ordinal | 0x80000000; |
899 | * (unsigned int *) id5->contents = ordinal | 0x80000000; | |
17505c5c NC |
900 | } |
901 | else | |
902 | { | |
903 | char * symbol; | |
ee91ed79 | 904 | |
17505c5c NC |
905 | /* Create .idata$6 - the Hint Name Table. */ |
906 | id6 = pe_ILF_make_a_section (& vars, ".idata$6", SIZEOF_IDATA6, 0); | |
907 | if (id6 == NULL) | |
908 | return false; | |
909 | ||
910 | /* If necessary, trim the import symbol name. */ | |
911 | symbol = symbol_name; | |
912 | ||
913 | if (import_name_type != IMPORT_NAME) | |
914 | /* Skip any prefix in symbol_name. */ | |
915 | while (*symbol == '@' || * symbol == '?' || * symbol == '_') | |
916 | ++ symbol; | |
917 | ||
918 | if (import_name_type == IMPORT_NAME_UNDECORATE) | |
919 | { | |
920 | /* Truncate at the first '@' */ | |
921 | while (* symbol != 0 && * symbol != '@') | |
922 | symbol ++; | |
923 | ||
924 | * symbol = 0; | |
925 | } | |
ee91ed79 | 926 | |
11c8a8d1 NC |
927 | id6->contents[0] = ordinal & 0xff; |
928 | id6->contents[1] = ordinal >> 8; | |
ee91ed79 | 929 | |
11c8a8d1 | 930 | strcpy (id6->contents + 2, symbol); |
17505c5c NC |
931 | } |
932 | ||
17505c5c NC |
933 | if (import_name_type != IMPORT_ORDINAL) |
934 | { | |
935 | pe_ILF_make_a_reloc (& vars, 0, BFD_RELOC_RVA, id6); | |
936 | pe_ILF_save_relocs (& vars, id4); | |
ee91ed79 | 937 | |
17505c5c NC |
938 | pe_ILF_make_a_reloc (& vars, 0, BFD_RELOC_RVA, id6); |
939 | pe_ILF_save_relocs (& vars, id5); | |
940 | } | |
941 | ||
942 | /* Create extra sections depending upon the type of import we are dealing with. */ | |
943 | switch (import_type) | |
944 | { | |
945 | int i; | |
ee91ed79 | 946 | |
17505c5c NC |
947 | case IMPORT_CODE: |
948 | /* Create a .text section. | |
949 | First we need to look up its contents in the jump table. */ | |
950 | for (i = NUM_ENTRIES (jtab); i--;) | |
951 | { | |
952 | if (jtab[i].size == 0) | |
953 | continue; | |
954 | if (jtab[i].magic == magic) | |
955 | break; | |
956 | } | |
957 | /* If we did not find a matching entry something is wrong. */ | |
958 | if (i < 0) | |
959 | abort (); | |
960 | ||
961 | /* Create the .text section. */ | |
962 | text = pe_ILF_make_a_section (& vars, ".text", jtab[i].size, SEC_CODE); | |
963 | if (text == NULL) | |
964 | return false; | |
965 | ||
966 | /* Copy in the jump code. */ | |
967 | memcpy (text->contents, jtab[i].data, jtab[i].size); | |
968 | ||
11c8a8d1 NC |
969 | /* Create an import symbol. */ |
970 | pe_ILF_make_a_symbol (& vars, "__imp_", symbol_name, id5, 0); | |
971 | imp_sym = vars.sym_ptr_ptr - 1; | |
972 | imp_index = vars.sym_index - 1; | |
ee91ed79 | 973 | |
17505c5c | 974 | /* Create a reloc for the data in the text section. */ |
ee91ed79 | 975 | #ifdef MIPS_ARCH_MAGIC_WINCE |
17505c5c NC |
976 | if (magic == MIPS_ARCH_MAGIC_WINCE) |
977 | { | |
11c8a8d1 | 978 | pe_ILF_make_a_symbol_reloc (& vars, 0, BFD_RELOC_HI16_S, |
23ccc829 | 979 | (struct symbol_cache_entry **) imp_sym, imp_index); |
17505c5c | 980 | pe_ILF_make_a_reloc (& vars, 0, BFD_RELOC_LO16, text); |
11c8a8d1 | 981 | pe_ILF_make_a_symbol_reloc (& vars, 4, BFD_RELOC_LO16, |
23ccc829 | 982 | (struct symbol_cache_entry **) imp_sym, imp_index); |
17505c5c NC |
983 | } |
984 | else | |
985 | #endif | |
11c8a8d1 NC |
986 | pe_ILF_make_a_symbol_reloc (& vars, jtab[i].offset, BFD_RELOC_32, |
987 | (asymbol **) imp_sym, imp_index); | |
ee91ed79 | 988 | |
17505c5c NC |
989 | pe_ILF_save_relocs (& vars, text); |
990 | break; | |
991 | ||
992 | case IMPORT_DATA: | |
993 | break; | |
994 | ||
995 | default: | |
996 | /* XXX code not yet written. */ | |
997 | abort (); | |
998 | } | |
ee91ed79 | 999 | |
17505c5c NC |
1000 | /* Initialise the bfd. */ |
1001 | memset (& internal_f, 0, sizeof (internal_f)); | |
ee91ed79 | 1002 | |
17505c5c NC |
1003 | internal_f.f_magic = magic; |
1004 | internal_f.f_symptr = 0; | |
1005 | internal_f.f_nsyms = 0; | |
1006 | internal_f.f_flags = F_AR32WR | F_LNNO; /* XXX is this correct ? */ | |
ee91ed79 | 1007 | |
17505c5c NC |
1008 | if ( ! bfd_set_start_address (abfd, 0) |
1009 | || ! bfd_coff_set_arch_mach_hook (abfd, & internal_f)) | |
1010 | return false; | |
1011 | ||
1012 | if (bfd_coff_mkobject_hook (abfd, (PTR) & internal_f, NULL) == NULL) | |
1013 | return false; | |
1014 | ||
1015 | coff_data (abfd)->pe = 1; | |
ee91ed79 | 1016 | #ifdef THUMBPEMAGIC |
17505c5c NC |
1017 | if (vars.magic == THUMBPEMAGIC) |
1018 | /* Stop some linker warnings about thumb code not supporting interworking. */ | |
1019 | coff_data (abfd)->flags |= F_INTERWORK | F_INTERWORK_SET; | |
1020 | #endif | |
ee91ed79 | 1021 | |
17505c5c NC |
1022 | /* Switch from file contents to memory contents. */ |
1023 | bfd_cache_close (abfd); | |
1024 | ||
1025 | abfd->iostream = (PTR) vars.bim; | |
1026 | abfd->flags |= BFD_IN_MEMORY /* | HAS_LOCALS */; | |
1027 | abfd->where = 0; | |
1028 | obj_sym_filepos (abfd) = 0; | |
1029 | ||
1030 | /* Now create a symbol describing the imported value. */ | |
1031 | switch (import_type) | |
1032 | { | |
11c8a8d1 | 1033 | bfd_byte * ptr; |
ee91ed79 | 1034 | |
17505c5c NC |
1035 | case IMPORT_CODE: |
1036 | pe_ILF_make_a_symbol (& vars, "", symbol_name, text, | |
1037 | BSF_NOT_AT_END | BSF_FUNCTION); | |
ee91ed79 | 1038 | |
11c8a8d1 NC |
1039 | /* Create an import symbol for the DLL, without the |
1040 | .dll suffix. */ | |
1041 | ptr = strrchr (source_dll, '.'); | |
1042 | if (ptr) | |
1043 | * ptr = 0; | |
1044 | pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0); | |
1045 | if (ptr) | |
1046 | * ptr = '.'; | |
17505c5c NC |
1047 | break; |
1048 | ||
1049 | case IMPORT_DATA: | |
11c8a8d1 | 1050 | /* Nothing to do here. */ |
17505c5c | 1051 | break; |
ee91ed79 | 1052 | |
17505c5c NC |
1053 | default: |
1054 | /* XXX code not yet written. */ | |
1055 | abort (); | |
1056 | } | |
1057 | ||
17505c5c NC |
1058 | /* Point the bfd at the symbol table. */ |
1059 | obj_symbols (abfd) = vars.sym_cache; | |
1060 | bfd_get_symcount (abfd) = vars.sym_index; | |
ee91ed79 | 1061 | |
17505c5c NC |
1062 | obj_raw_syments (abfd) = vars.native_syms; |
1063 | obj_raw_syment_count (abfd) = vars.sym_index; | |
1064 | ||
1065 | obj_coff_external_syms (abfd) = (PTR) vars.esym_table; | |
1066 | obj_coff_keep_syms (abfd) = true; | |
ee91ed79 | 1067 | |
17505c5c NC |
1068 | obj_convert (abfd) = vars.sym_table; |
1069 | obj_conv_table_size (abfd) = vars.sym_index; | |
ee91ed79 | 1070 | |
17505c5c NC |
1071 | obj_coff_strings (abfd) = vars.string_table; |
1072 | obj_coff_keep_strings (abfd) = true; | |
1073 | ||
1074 | abfd->flags |= HAS_SYMS; | |
1075 | ||
1076 | return true; | |
1077 | } | |
1078 | ||
1079 | /* We have detected a Image Library Format archive element. | |
1080 | Decode the element and return the appropriate target. */ | |
cb665cd3 | 1081 | static const bfd_target * |
17505c5c NC |
1082 | pe_ILF_object_p (bfd * abfd) |
1083 | { | |
1084 | bfd_byte buffer[16]; | |
1085 | bfd_byte * ptr; | |
1086 | bfd_byte * symbol_name; | |
1087 | bfd_byte * source_dll; | |
1088 | unsigned int machine; | |
1089 | unsigned long size; | |
1090 | unsigned int ordinal; | |
1091 | unsigned int types; | |
1092 | unsigned short magic; | |
ee91ed79 | 1093 | |
17505c5c NC |
1094 | /* Upon entry the first four buyes of the ILF header have |
1095 | already been read. Now read the rest of the header. */ | |
1096 | if (bfd_read (buffer, 1, 16, abfd) != 16) | |
1097 | return NULL; | |
1098 | ||
1099 | ptr = buffer; | |
ee91ed79 | 1100 | |
17505c5c NC |
1101 | /* We do not bother to check the version number. |
1102 | version = bfd_h_get_16 (abfd, ptr); */ | |
1103 | ptr += 2; | |
1104 | ||
1105 | machine = bfd_h_get_16 (abfd, ptr); | |
1106 | ptr += 2; | |
1107 | ||
1108 | /* Check that the machine type is recognised. */ | |
1109 | magic = 0; | |
ee91ed79 | 1110 | |
17505c5c NC |
1111 | switch (machine) |
1112 | { | |
1113 | case IMAGE_FILE_MACHINE_UNKNOWN: | |
1114 | case IMAGE_FILE_MACHINE_ALPHA: | |
1115 | case IMAGE_FILE_MACHINE_ALPHA64: | |
1116 | case IMAGE_FILE_MACHINE_IA64: | |
1117 | break; | |
ee91ed79 | 1118 | |
17505c5c NC |
1119 | case IMAGE_FILE_MACHINE_I386: |
1120 | #ifdef I386MAGIC | |
1121 | magic = I386MAGIC; | |
1122 | #endif | |
1123 | break; | |
ee91ed79 | 1124 | |
17505c5c NC |
1125 | case IMAGE_FILE_MACHINE_M68K: |
1126 | #ifdef MC68AGIC | |
1127 | magic = MC68MAGIC; | |
1128 | #endif | |
1129 | break; | |
ee91ed79 | 1130 | |
17505c5c NC |
1131 | case IMAGE_FILE_MACHINE_R3000: |
1132 | case IMAGE_FILE_MACHINE_R4000: | |
1133 | case IMAGE_FILE_MACHINE_R10000: | |
ee91ed79 | 1134 | |
17505c5c NC |
1135 | case IMAGE_FILE_MACHINE_MIPS16: |
1136 | case IMAGE_FILE_MACHINE_MIPSFPU: | |
1137 | case IMAGE_FILE_MACHINE_MIPSFPU16: | |
1138 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
1139 | magic = MIPS_ARCH_MAGIC_WINCE; | |
1140 | #endif | |
1141 | break; | |
ee91ed79 | 1142 | |
17505c5c NC |
1143 | case IMAGE_FILE_MACHINE_SH3: |
1144 | case IMAGE_FILE_MACHINE_SH4: | |
1145 | #ifdef SH_ARCH_MAGIC_WINCE | |
1146 | magic = SH_ARCH_MAGIC_WINCE; | |
1147 | #endif | |
1148 | break; | |
ee91ed79 | 1149 | |
17505c5c NC |
1150 | case IMAGE_FILE_MACHINE_ARM: |
1151 | #ifdef ARMPEMAGIC | |
1152 | magic = ARMPEMAGIC; | |
ee91ed79 | 1153 | #endif |
17505c5c | 1154 | break; |
ee91ed79 | 1155 | |
17505c5c NC |
1156 | case IMAGE_FILE_MACHINE_THUMB: |
1157 | #ifdef THUMBPEMAGIC | |
1158 | { | |
23ccc829 | 1159 | extern const bfd_target TARGET_LITTLE_SYM; |
ee91ed79 | 1160 | |
26bfd1c0 | 1161 | if (abfd->xvec == & TARGET_LITTLE_SYM) |
17505c5c NC |
1162 | magic = THUMBPEMAGIC; |
1163 | } | |
ee91ed79 | 1164 | #endif |
17505c5c | 1165 | break; |
ee91ed79 | 1166 | |
17505c5c NC |
1167 | case IMAGE_FILE_MACHINE_POWERPC: |
1168 | /* We no longer support PowerPC. */ | |
1169 | default: | |
1170 | _bfd_error_handler | |
1171 | ( | |
1172 | _("%s: Unrecognised machine type (0x%x) in Import Library Format archive"), | |
1173 | bfd_get_filename (abfd), machine); | |
1174 | bfd_set_error (bfd_error_malformed_archive); | |
ee91ed79 | 1175 | |
17505c5c NC |
1176 | return NULL; |
1177 | break; | |
1178 | } | |
1179 | ||
1180 | if (magic == 0) | |
1181 | { | |
1182 | _bfd_error_handler | |
1183 | ( | |
1184 | _("%s: Recognised but unhandled machine type (0x%x) in Import Library Format archive"), | |
1185 | bfd_get_filename (abfd), machine); | |
1186 | bfd_set_error (bfd_error_wrong_format); | |
ee91ed79 | 1187 | |
17505c5c | 1188 | return NULL; |
ee91ed79 | 1189 | } |
17505c5c NC |
1190 | |
1191 | /* We do not bother to check the date. | |
1192 | date = bfd_h_get_32 (abfd, ptr); */ | |
1193 | ptr += 4; | |
ee91ed79 | 1194 | |
17505c5c NC |
1195 | size = bfd_h_get_32 (abfd, ptr); |
1196 | ptr += 4; | |
1197 | ||
1198 | if (size == 0) | |
1199 | { | |
1200 | _bfd_error_handler | |
1201 | (_("%s: size field is zero in Import Library Format header"), | |
1202 | bfd_get_filename (abfd)); | |
1203 | bfd_set_error (bfd_error_malformed_archive); | |
ee91ed79 | 1204 | |
17505c5c NC |
1205 | return NULL; |
1206 | } | |
1207 | ||
1208 | ordinal = bfd_h_get_16 (abfd, ptr); | |
1209 | ptr += 2; | |
1210 | ||
1211 | types = bfd_h_get_16 (abfd, ptr); | |
1212 | /* ptr += 2; */ | |
1213 | ||
1214 | /* Now read in the two strings that follow. */ | |
1215 | ptr = bfd_alloc (abfd, size); | |
1216 | if (ptr == NULL) | |
1217 | return NULL; | |
ee91ed79 | 1218 | |
17505c5c NC |
1219 | if (bfd_read (ptr, 1, size, abfd) != size) |
1220 | return NULL; | |
1221 | ||
1222 | symbol_name = ptr; | |
1223 | source_dll = ptr + strlen (ptr) + 1; | |
ee91ed79 | 1224 | |
17505c5c | 1225 | /* Verify that the strings are null terminated. */ |
11c8a8d1 | 1226 | if (ptr[size - 1] != 0 || ((unsigned long) (source_dll - ptr) >= size)) |
17505c5c NC |
1227 | { |
1228 | _bfd_error_handler | |
1229 | (_("%s: string not null terminated in ILF object file."), | |
1230 | bfd_get_filename (abfd)); | |
1231 | bfd_set_error (bfd_error_malformed_archive); | |
ee91ed79 | 1232 | |
17505c5c NC |
1233 | return NULL; |
1234 | } | |
ee91ed79 | 1235 | |
17505c5c NC |
1236 | /* Now construct the bfd. */ |
1237 | if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name, | |
1238 | source_dll, ordinal, types)) | |
1239 | return NULL; | |
ee91ed79 | 1240 | |
17505c5c NC |
1241 | return abfd->xvec; |
1242 | } | |
1243 | ||
1244 | static const bfd_target * | |
1245 | pe_bfd_object_p (bfd * abfd) | |
cb665cd3 | 1246 | { |
cb665cd3 | 1247 | bfd_byte buffer[4]; |
15e0ecd9 L |
1248 | struct external_PEI_DOS_hdr dos_hdr; |
1249 | struct external_PEI_IMAGE_hdr image_hdr; | |
cb665cd3 | 1250 | file_ptr offset; |
cb665cd3 NC |
1251 | |
1252 | /* Detect if this a Microsoft Import Library Format element. */ | |
1253 | if (bfd_seek (abfd, 0x00, SEEK_SET) != 0 | |
1254 | || bfd_read (buffer, 1, 4, abfd) != 4) | |
1255 | { | |
1256 | if (bfd_get_error () != bfd_error_system_call) | |
1257 | bfd_set_error (bfd_error_wrong_format); | |
1258 | return NULL; | |
1259 | } | |
ee91ed79 | 1260 | |
15e0ecd9 | 1261 | if (bfd_h_get_32 (abfd, buffer) == 0xffff0000) |
17505c5c | 1262 | return pe_ILF_object_p (abfd); |
ee91ed79 | 1263 | |
15e0ecd9 L |
1264 | if (bfd_seek (abfd, 0x00, SEEK_SET) != 0 |
1265 | || bfd_read (&dos_hdr, 1, sizeof (dos_hdr), abfd) | |
1266 | != sizeof (dos_hdr)) | |
cb665cd3 NC |
1267 | { |
1268 | if (bfd_get_error () != bfd_error_system_call) | |
1269 | bfd_set_error (bfd_error_wrong_format); | |
1270 | return NULL; | |
1271 | } | |
1272 | ||
15e0ecd9 L |
1273 | /* There are really two magic numbers involved; the magic number |
1274 | that says this is a NT executable (PEI) and the magic number that | |
1275 | determines the architecture. The former is DOSMAGIC, stored in | |
1276 | the e_magic field. The latter is stored in the f_magic field. | |
1277 | If the NT magic number isn't valid, the architecture magic number | |
1278 | could be mimicked by some other field (specifically, the number | |
1279 | of relocs in section 3). Since this routine can only be called | |
1280 | correctly for a PEI file, check the e_magic number here, and, if | |
1281 | it doesn't match, clobber the f_magic number so that we don't get | |
1282 | a false match. */ | |
1283 | if (bfd_h_get_16 (abfd, (bfd_byte *) dos_hdr.e_magic) != DOSMAGIC) | |
1284 | { | |
1285 | bfd_set_error (bfd_error_wrong_format); | |
1286 | return NULL; | |
1287 | } | |
cb665cd3 | 1288 | |
15e0ecd9 L |
1289 | offset = bfd_h_get_32 (abfd, (bfd_byte *) dos_hdr.e_lfanew); |
1290 | if (bfd_seek (abfd, (file_ptr) offset, SEEK_SET) != 0 | |
1291 | || bfd_read (&image_hdr, 1, sizeof (image_hdr), abfd) | |
1292 | != sizeof (image_hdr)) | |
cb665cd3 NC |
1293 | { |
1294 | if (bfd_get_error () != bfd_error_system_call) | |
1295 | bfd_set_error (bfd_error_wrong_format); | |
1296 | return NULL; | |
1297 | } | |
1298 | ||
15e0ecd9 L |
1299 | if (bfd_h_get_32 (abfd, (bfd_byte *) image_hdr.nt_signature) |
1300 | != 0x4550) | |
cb665cd3 NC |
1301 | { |
1302 | bfd_set_error (bfd_error_wrong_format); | |
1303 | return NULL; | |
1304 | } | |
ee91ed79 | 1305 | |
cb665cd3 | 1306 | /* Here is the hack. coff_object_p wants to read filhsz bytes to |
15e0ecd9 L |
1307 | pick up the COFF header for PE, see "struct external_PEI_filehdr" |
1308 | in include/coff/pe.h. We adjust so that that will work. */ | |
cb665cd3 | 1309 | if (bfd_seek (abfd, |
15e0ecd9 | 1310 | (file_ptr) (offset - sizeof (dos_hdr)), |
cb665cd3 NC |
1311 | SEEK_SET) |
1312 | != 0) | |
1313 | { | |
1314 | if (bfd_get_error () != bfd_error_system_call) | |
1315 | bfd_set_error (bfd_error_wrong_format); | |
1316 | return NULL; | |
1317 | } | |
1318 | ||
1319 | return coff_object_p (abfd); | |
1320 | } | |
1321 | ||
1322 | #define coff_object_p pe_bfd_object_p | |
17505c5c | 1323 | #endif /* COFF_IMAGE_WITH_PE */ |