Commit | Line | Data |
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277d1b5e | 1 | /* Support for the generic parts of PE/PEI, for BFD. |
cbff5e0d | 2 | Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. |
277d1b5e | 3 | Written by Cygnus Solutions. |
252b5132 RH |
4 | |
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | /* | |
22 | Most of this hacked by Steve Chamberlain, | |
23 | sac@cygnus.com | |
277d1b5e ILT |
24 | |
25 | PE/PEI rearrangement (and code added): Donn Terry | |
26 | Softway Systems, Inc. | |
252b5132 RH |
27 | */ |
28 | ||
29 | /* Hey look, some documentation [and in a place you expect to find it]! | |
30 | ||
31 | The main reference for the pei format is "Microsoft Portable Executable | |
32 | and Common Object File Format Specification 4.1". Get it if you need to | |
33 | do some serious hacking on this code. | |
34 | ||
35 | Another reference: | |
36 | "Peering Inside the PE: A Tour of the Win32 Portable Executable | |
37 | File Format", MSJ 1994, Volume 9. | |
38 | ||
39 | The *sole* difference between the pe format and the pei format is that the | |
40 | latter has an MSDOS 2.0 .exe header on the front that prints the message | |
41 | "This app must be run under Windows." (or some such). | |
42 | (FIXME: Whether that statement is *really* true or not is unknown. | |
43 | Are there more subtle differences between pe and pei formats? | |
44 | For now assume there aren't. If you find one, then for God sakes | |
45 | document it here!) | |
46 | ||
47 | The Microsoft docs use the word "image" instead of "executable" because | |
48 | the former can also refer to a DLL (shared library). Confusion can arise | |
49 | because the `i' in `pei' also refers to "image". The `pe' format can | |
50 | also create images (i.e. executables), it's just that to run on a win32 | |
51 | system you need to use the pei format. | |
52 | ||
53 | FIXME: Please add more docs here so the next poor fool that has to hack | |
54 | on this code has a chance of getting something accomplished without | |
55 | wasting too much time. | |
56 | */ | |
57 | ||
277d1b5e ILT |
58 | #include "libpei.h" |
59 | ||
252b5132 | 60 | static boolean (*pe_saved_coff_bfd_print_private_bfd_data) |
277d1b5e ILT |
61 | PARAMS ((bfd *, PTR)) = |
62 | #ifndef coff_bfd_print_private_bfd_data | |
63 | NULL; | |
252b5132 | 64 | #else |
277d1b5e ILT |
65 | coff_bfd_print_private_bfd_data; |
66 | #undef coff_bfd_print_private_bfd_data | |
252b5132 RH |
67 | #endif |
68 | ||
277d1b5e ILT |
69 | static boolean pe_print_private_bfd_data PARAMS ((bfd *, PTR)); |
70 | #define coff_bfd_print_private_bfd_data pe_print_private_bfd_data | |
252b5132 | 71 | |
277d1b5e ILT |
72 | static boolean (*pe_saved_coff_bfd_copy_private_bfd_data) |
73 | PARAMS ((bfd *, bfd *)) = | |
74 | #ifndef coff_bfd_copy_private_bfd_data | |
75 | NULL; | |
76 | #else | |
77 | coff_bfd_copy_private_bfd_data; | |
78 | #undef coff_bfd_copy_private_bfd_data | |
252b5132 RH |
79 | #endif |
80 | ||
277d1b5e ILT |
81 | static boolean pe_bfd_copy_private_bfd_data PARAMS ((bfd *, bfd *)); |
82 | #define coff_bfd_copy_private_bfd_data pe_bfd_copy_private_bfd_data | |
252b5132 | 83 | |
277d1b5e ILT |
84 | #define coff_mkobject pe_mkobject |
85 | #define coff_mkobject_hook pe_mkobject_hook | |
252b5132 | 86 | |
17505c5c | 87 | #ifndef NO_COFF_RELOCS |
252b5132 RH |
88 | static void coff_swap_reloc_in PARAMS ((bfd *, PTR, PTR)); |
89 | static unsigned int coff_swap_reloc_out PARAMS ((bfd *, PTR, PTR)); | |
17505c5c | 90 | #endif |
252b5132 | 91 | static void coff_swap_filehdr_in PARAMS ((bfd *, PTR, PTR)); |
252b5132 | 92 | static void coff_swap_scnhdr_in PARAMS ((bfd *, PTR, PTR)); |
252b5132 RH |
93 | static boolean pe_mkobject PARAMS ((bfd *)); |
94 | static PTR pe_mkobject_hook PARAMS ((bfd *, PTR, PTR)); | |
252b5132 | 95 | |
17505c5c NC |
96 | #ifdef COFF_IMAGE_WITH_PE |
97 | /* This structure contains static variables used by the ILF code. */ | |
98 | typedef asection * asection_ptr; | |
99 | ||
100 | typedef struct | |
101 | { | |
102 | bfd * abfd; | |
103 | bfd_byte * data; | |
104 | struct bfd_in_memory * bim; | |
105 | unsigned short magic; | |
ee91ed79 | 106 | |
17505c5c NC |
107 | arelent * reltab; |
108 | unsigned int relcount; | |
109 | ||
110 | coff_symbol_type * sym_cache; | |
111 | coff_symbol_type * sym_ptr; | |
112 | unsigned int sym_index; | |
ee91ed79 | 113 | |
17505c5c NC |
114 | unsigned int * sym_table; |
115 | unsigned int * table_ptr; | |
ee91ed79 | 116 | |
17505c5c NC |
117 | combined_entry_type * native_syms; |
118 | combined_entry_type * native_ptr; | |
119 | ||
11c8a8d1 NC |
120 | coff_symbol_type ** sym_ptr_table; |
121 | coff_symbol_type ** sym_ptr_ptr; | |
ee91ed79 | 122 | |
17505c5c NC |
123 | unsigned int sec_index; |
124 | ||
125 | char * string_table; | |
126 | char * string_ptr; | |
127 | char * end_string_ptr; | |
ee91ed79 | 128 | |
17505c5c NC |
129 | SYMENT * esym_table; |
130 | SYMENT * esym_ptr; | |
131 | ||
132 | struct internal_reloc * int_reltab; | |
133 | } | |
134 | pe_ILF_vars; | |
135 | ||
136 | static asection_ptr pe_ILF_make_a_section PARAMS ((pe_ILF_vars *, const char *, unsigned int, flagword)); | |
137 | static void pe_ILF_make_a_reloc PARAMS ((pe_ILF_vars *, bfd_vma, bfd_reloc_code_real_type, asection_ptr)); | |
138 | static void pe_ILF_make_a_symbol PARAMS ((pe_ILF_vars *, const char *, const char *, asection_ptr, flagword)); | |
139 | static void pe_ILF_save_relocs PARAMS ((pe_ILF_vars *, asection_ptr)); | |
23ccc829 | 140 | 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 |
141 | static boolean pe_ILF_build_a_bfd PARAMS ((bfd *, unsigned short, bfd_byte *, bfd_byte *, unsigned int, unsigned int)); |
142 | static const bfd_target * pe_ILF_object_p PARAMS ((bfd *)); | |
11c8a8d1 | 143 | static const bfd_target * pe_bfd_object_p PARAMS ((bfd *)); |
17505c5c NC |
144 | #endif /* COFF_IMAGE_WITH_PE */ |
145 | ||
252b5132 RH |
146 | /**********************************************************************/ |
147 | ||
17505c5c | 148 | #ifndef NO_COFF_RELOCS |
252b5132 RH |
149 | static void |
150 | coff_swap_reloc_in (abfd, src, dst) | |
151 | bfd *abfd; | |
152 | PTR src; | |
153 | PTR dst; | |
154 | { | |
155 | RELOC *reloc_src = (RELOC *) src; | |
156 | struct internal_reloc *reloc_dst = (struct internal_reloc *) dst; | |
157 | ||
158 | reloc_dst->r_vaddr = bfd_h_get_32(abfd, (bfd_byte *)reloc_src->r_vaddr); | |
159 | reloc_dst->r_symndx = bfd_h_get_signed_32(abfd, (bfd_byte *) reloc_src->r_symndx); | |
160 | ||
161 | reloc_dst->r_type = bfd_h_get_16(abfd, (bfd_byte *) reloc_src->r_type); | |
162 | ||
163 | #ifdef SWAP_IN_RELOC_OFFSET | |
164 | reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET(abfd, | |
165 | (bfd_byte *) reloc_src->r_offset); | |
166 | #endif | |
167 | } | |
168 | ||
252b5132 RH |
169 | static unsigned int |
170 | coff_swap_reloc_out (abfd, src, dst) | |
171 | bfd *abfd; | |
172 | PTR src; | |
173 | PTR dst; | |
174 | { | |
175 | struct internal_reloc *reloc_src = (struct internal_reloc *)src; | |
176 | struct external_reloc *reloc_dst = (struct external_reloc *)dst; | |
177 | bfd_h_put_32(abfd, reloc_src->r_vaddr, (bfd_byte *) reloc_dst->r_vaddr); | |
178 | bfd_h_put_32(abfd, reloc_src->r_symndx, (bfd_byte *) reloc_dst->r_symndx); | |
179 | ||
180 | bfd_h_put_16(abfd, reloc_src->r_type, (bfd_byte *) | |
181 | reloc_dst->r_type); | |
182 | ||
183 | #ifdef SWAP_OUT_RELOC_OFFSET | |
184 | SWAP_OUT_RELOC_OFFSET(abfd, | |
185 | reloc_src->r_offset, | |
186 | (bfd_byte *) reloc_dst->r_offset); | |
187 | #endif | |
188 | #ifdef SWAP_OUT_RELOC_EXTRA | |
189 | SWAP_OUT_RELOC_EXTRA(abfd,reloc_src, reloc_dst); | |
190 | #endif | |
191 | return RELSZ; | |
192 | } | |
17505c5c | 193 | #endif /* not NO_COFF_RELOCS */ |
252b5132 RH |
194 | |
195 | static void | |
196 | coff_swap_filehdr_in (abfd, src, dst) | |
197 | bfd *abfd; | |
198 | PTR src; | |
199 | PTR dst; | |
200 | { | |
201 | FILHDR *filehdr_src = (FILHDR *) src; | |
202 | struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst; | |
203 | filehdr_dst->f_magic = bfd_h_get_16(abfd, (bfd_byte *) filehdr_src->f_magic); | |
204 | filehdr_dst->f_nscns = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_nscns); | |
205 | filehdr_dst->f_timdat = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_timdat); | |
206 | ||
207 | filehdr_dst->f_nsyms = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_nsyms); | |
208 | filehdr_dst->f_flags = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_flags); | |
209 | filehdr_dst->f_symptr = bfd_h_get_32 (abfd, (bfd_byte *) filehdr_src->f_symptr); | |
210 | ||
211 | /* Other people's tools sometimes generate headers with an nsyms but | |
212 | a zero symptr. */ | |
213 | if (filehdr_dst->f_nsyms != 0 && filehdr_dst->f_symptr == 0) | |
214 | { | |
215 | filehdr_dst->f_nsyms = 0; | |
216 | filehdr_dst->f_flags |= F_LSYMS; | |
217 | } | |
218 | ||
ee91ed79 | 219 | filehdr_dst->f_opthdr = bfd_h_get_16(abfd, |
252b5132 RH |
220 | (bfd_byte *)filehdr_src-> f_opthdr); |
221 | } | |
222 | ||
223 | #ifdef COFF_IMAGE_WITH_PE | |
cbff5e0d | 224 | # define coff_swap_filehdr_out _bfd_XXi_only_swap_filehdr_out |
252b5132 | 225 | #else |
cbff5e0d | 226 | # define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out |
252b5132 | 227 | #endif |
252b5132 | 228 | |
252b5132 | 229 | static void |
e166a60f ILT |
230 | coff_swap_scnhdr_in (abfd, ext, in) |
231 | bfd *abfd; | |
232 | PTR ext; | |
233 | PTR in; | |
252b5132 RH |
234 | { |
235 | SCNHDR *scnhdr_ext = (SCNHDR *) ext; | |
236 | struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in; | |
237 | ||
ee91ed79 | 238 | memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof (scnhdr_int->s_name)); |
252b5132 RH |
239 | scnhdr_int->s_vaddr = |
240 | GET_SCNHDR_VADDR (abfd, (bfd_byte *) scnhdr_ext->s_vaddr); | |
241 | scnhdr_int->s_paddr = | |
242 | GET_SCNHDR_PADDR (abfd, (bfd_byte *) scnhdr_ext->s_paddr); | |
243 | scnhdr_int->s_size = | |
244 | GET_SCNHDR_SIZE (abfd, (bfd_byte *) scnhdr_ext->s_size); | |
245 | scnhdr_int->s_scnptr = | |
246 | GET_SCNHDR_SCNPTR (abfd, (bfd_byte *) scnhdr_ext->s_scnptr); | |
247 | scnhdr_int->s_relptr = | |
248 | GET_SCNHDR_RELPTR (abfd, (bfd_byte *) scnhdr_ext->s_relptr); | |
249 | scnhdr_int->s_lnnoptr = | |
250 | GET_SCNHDR_LNNOPTR (abfd, (bfd_byte *) scnhdr_ext->s_lnnoptr); | |
251 | scnhdr_int->s_flags = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_flags); | |
252 | ||
cb43721d ILT |
253 | /* MS handles overflow of line numbers by carrying into the reloc |
254 | field (it appears). Since it's supposed to be zero for PE | |
255 | *IMAGE* format, that's safe. This is still a bit iffy. */ | |
256 | #ifdef COFF_IMAGE_WITH_PE | |
257 | scnhdr_int->s_nlnno = | |
258 | (bfd_h_get_16 (abfd, (bfd_byte *) scnhdr_ext->s_nlnno) | |
259 | + (bfd_h_get_16 (abfd, (bfd_byte *) scnhdr_ext->s_nreloc) << 16)); | |
260 | scnhdr_int->s_nreloc = 0; | |
261 | #else | |
262 | scnhdr_int->s_nreloc = bfd_h_get_16 (abfd, | |
263 | (bfd_byte *) scnhdr_ext->s_nreloc); | |
264 | scnhdr_int->s_nlnno = bfd_h_get_16 (abfd, | |
265 | (bfd_byte *) scnhdr_ext->s_nlnno); | |
266 | #endif | |
252b5132 | 267 | |
ee91ed79 | 268 | if (scnhdr_int->s_vaddr != 0) |
252b5132 RH |
269 | { |
270 | scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase; | |
271 | scnhdr_int->s_vaddr &= 0xffffffff; | |
272 | } | |
e166a60f | 273 | |
17505c5c | 274 | #ifndef COFF_NO_HACK_SCNHDR_SIZE |
e166a60f ILT |
275 | /* If this section holds uninitialized data, use the virtual size |
276 | (stored in s_paddr) instead of the physical size. */ | |
277 | if ((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0) | |
252b5132 RH |
278 | { |
279 | scnhdr_int->s_size = scnhdr_int->s_paddr; | |
e166a60f ILT |
280 | /* This code used to set scnhdr_int->s_paddr to 0. However, |
281 | coff_set_alignment_hook stores s_paddr in virt_size, which | |
282 | only works if it correctly holds the virtual size of the | |
283 | section. */ | |
252b5132 | 284 | } |
17505c5c | 285 | #endif |
252b5132 RH |
286 | } |
287 | ||
252b5132 RH |
288 | static boolean |
289 | pe_mkobject (abfd) | |
290 | bfd * abfd; | |
291 | { | |
292 | pe_data_type *pe; | |
ee91ed79 | 293 | abfd->tdata.pe_obj_data = |
252b5132 RH |
294 | (struct pe_tdata *) bfd_zalloc (abfd, sizeof (pe_data_type)); |
295 | ||
296 | if (abfd->tdata.pe_obj_data == 0) | |
297 | return false; | |
298 | ||
299 | pe = pe_data (abfd); | |
300 | ||
301 | pe->coff.pe = 1; | |
277d1b5e ILT |
302 | |
303 | /* in_reloc_p is architecture dependent. */ | |
252b5132 | 304 | pe->in_reloc_p = in_reloc_p; |
cbff5e0d DD |
305 | |
306 | #ifdef PEI_FORCE_MINIMUM_ALIGNMENT | |
307 | pe->force_minimum_alignment = 1; | |
308 | #endif | |
309 | #ifdef PEI_TARGET_SUBSYSTEM | |
310 | pe->target_subsystem = PEI_TARGET_SUBSYSTEM; | |
311 | #endif | |
312 | ||
252b5132 RH |
313 | return true; |
314 | } | |
315 | ||
316 | /* Create the COFF backend specific information. */ | |
317 | static PTR | |
318 | pe_mkobject_hook (abfd, filehdr, aouthdr) | |
319 | bfd * abfd; | |
320 | PTR filehdr; | |
5f771d47 | 321 | PTR aouthdr ATTRIBUTE_UNUSED; |
252b5132 RH |
322 | { |
323 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
324 | pe_data_type *pe; | |
325 | ||
326 | if (pe_mkobject (abfd) == false) | |
327 | return NULL; | |
328 | ||
329 | pe = pe_data (abfd); | |
330 | pe->coff.sym_filepos = internal_f->f_symptr; | |
331 | /* These members communicate important constants about the symbol | |
332 | table to GDB's symbol-reading code. These `constants' | |
333 | unfortunately vary among coff implementations... */ | |
334 | pe->coff.local_n_btmask = N_BTMASK; | |
335 | pe->coff.local_n_btshft = N_BTSHFT; | |
336 | pe->coff.local_n_tmask = N_TMASK; | |
337 | pe->coff.local_n_tshift = N_TSHIFT; | |
338 | pe->coff.local_symesz = SYMESZ; | |
339 | pe->coff.local_auxesz = AUXESZ; | |
340 | pe->coff.local_linesz = LINESZ; | |
341 | ||
1135238b ILT |
342 | pe->coff.timestamp = internal_f->f_timdat; |
343 | ||
252b5132 RH |
344 | obj_raw_syment_count (abfd) = |
345 | obj_conv_table_size (abfd) = | |
346 | internal_f->f_nsyms; | |
347 | ||
348 | pe->real_flags = internal_f->f_flags; | |
349 | ||
350 | if ((internal_f->f_flags & F_DLL) != 0) | |
351 | pe->dll = 1; | |
352 | ||
4cfec37b ILT |
353 | if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) |
354 | abfd->flags |= HAS_DEBUG; | |
355 | ||
252b5132 | 356 | #ifdef COFF_IMAGE_WITH_PE |
ee91ed79 | 357 | if (aouthdr) |
252b5132 RH |
358 | pe->pe_opthdr = ((struct internal_aouthdr *)aouthdr)->pe; |
359 | #endif | |
360 | ||
ee91ed79 | 361 | #ifdef ARM |
252b5132 RH |
362 | if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) |
363 | coff_data (abfd) ->flags = 0; | |
364 | #endif | |
ee91ed79 | 365 | |
252b5132 RH |
366 | return (PTR) pe; |
367 | } | |
368 | ||
277d1b5e ILT |
369 | static boolean |
370 | pe_print_private_bfd_data (abfd, vfile) | |
371 | bfd *abfd; | |
372 | PTR vfile; | |
373 | { | |
374 | FILE *file = (FILE *) vfile; | |
375 | ||
cbff5e0d | 376 | if (!_bfd_XX_print_private_bfd_data_common (abfd, vfile)) |
277d1b5e | 377 | return false; |
252b5132 | 378 | |
277d1b5e ILT |
379 | if (pe_saved_coff_bfd_print_private_bfd_data != NULL) |
380 | { | |
381 | fputc ('\n', file); | |
382 | ||
383 | return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile); | |
384 | } | |
385 | ||
386 | return true; | |
387 | } | |
252b5132 RH |
388 | |
389 | /* Copy any private info we understand from the input bfd | |
390 | to the output bfd. */ | |
391 | ||
252b5132 RH |
392 | static boolean |
393 | pe_bfd_copy_private_bfd_data (ibfd, obfd) | |
394 | bfd *ibfd, *obfd; | |
395 | { | |
cbff5e0d | 396 | if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd, obfd)) |
277d1b5e | 397 | return false; |
252b5132 RH |
398 | |
399 | if (pe_saved_coff_bfd_copy_private_bfd_data) | |
400 | return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd); | |
252b5132 RH |
401 | |
402 | return true; | |
403 | } | |
404 | ||
277d1b5e | 405 | #define coff_bfd_copy_private_section_data \ |
cbff5e0d | 406 | _bfd_XX_bfd_copy_private_section_data |
7d2b58d6 | 407 | |
cbff5e0d | 408 | #define coff_get_symbol_info _bfd_XX_get_symbol_info |
cb665cd3 | 409 | |
b1f10154 | 410 | #ifdef COFF_IMAGE_WITH_PE |
17505c5c NC |
411 | \f |
412 | /* Code to handle Microsoft's Image Library Format. | |
413 | Also known as LINK6 format. | |
ee91ed79 | 414 | Documentation about this format can be found at: |
17505c5c NC |
415 | |
416 | http://msdn.microsoft.com/library/specs/pecoff_section8.htm */ | |
417 | ||
418 | /* The following constants specify the sizes of the various data | |
419 | structures that we have to create in order to build a bfd describing | |
420 | an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6 | |
421 | and SIZEOF_IDATA7 below is to allow for the possibility that we might | |
422 | need a padding byte in order to ensure 16 bit alignment for the section's | |
423 | contents. | |
424 | ||
425 | The value for SIZEOF_ILF_STRINGS is computed as follows: | |
426 | ||
427 | There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters | |
11c8a8d1 | 428 | per symbol for their names (longest section name is .idata$x). |
17505c5c NC |
429 | |
430 | There will be two symbols for the imported value, one the symbol name | |
431 | and one with _imp__ prefixed. Allowing for the terminating nul's this | |
11c8a8d1 | 432 | is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll). |
17505c5c NC |
433 | |
434 | The strings in the string table must start STRING__SIZE_SIZE bytes into | |
435 | the table in order to for the string lookup code in coffgen/coffcode to | |
436 | work. */ | |
437 | #define NUM_ILF_RELOCS 8 | |
438 | #define NUM_ILF_SECTIONS 6 | |
439 | #define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS) | |
ee91ed79 | 440 | |
17505c5c NC |
441 | #define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache)) |
442 | #define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table)) | |
443 | #define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms)) | |
11c8a8d1 | 444 | #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table)) |
17505c5c NC |
445 | #define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table)) |
446 | #define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab)) | |
447 | #define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab)) | |
11c8a8d1 NC |
448 | #define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \ |
449 | + 21 + strlen (source_dll) \ | |
450 | + NUM_ILF_SECTIONS * 9 \ | |
451 | + STRING_SIZE_SIZE) | |
17505c5c NC |
452 | #define SIZEOF_IDATA2 (5 * 4) |
453 | #define SIZEOF_IDATA4 (1 * 4) | |
454 | #define SIZEOF_IDATA5 (1 * 4) | |
455 | #define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1) | |
456 | #define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1) | |
457 | #define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata)) | |
ee91ed79 | 458 | |
17505c5c NC |
459 | #define ILF_DATA_SIZE \ |
460 | sizeof (* vars.bim) \ | |
461 | + SIZEOF_ILF_SYMS \ | |
462 | + SIZEOF_ILF_SYM_TABLE \ | |
463 | + SIZEOF_ILF_NATIVE_SYMS \ | |
11c8a8d1 | 464 | + SIZEOF_ILF_SYM_PTR_TABLE \ |
17505c5c NC |
465 | + SIZEOF_ILF_EXT_SYMS \ |
466 | + SIZEOF_ILF_RELOCS \ | |
467 | + SIZEOF_ILF_INT_RELOCS \ | |
468 | + SIZEOF_ILF_STRINGS \ | |
469 | + SIZEOF_IDATA2 \ | |
470 | + SIZEOF_IDATA4 \ | |
471 | + SIZEOF_IDATA5 \ | |
472 | + SIZEOF_IDATA6 \ | |
473 | + SIZEOF_IDATA7 \ | |
474 | + SIZEOF_ILF_SECTIONS \ | |
475 | + MAX_TEXT_SECTION_SIZE | |
476 | ||
17505c5c NC |
477 | /* Create an empty relocation against the given symbol. */ |
478 | static void | |
11c8a8d1 NC |
479 | pe_ILF_make_a_symbol_reloc (pe_ILF_vars * vars, |
480 | bfd_vma address, | |
481 | bfd_reloc_code_real_type reloc, | |
482 | struct symbol_cache_entry ** sym, | |
483 | unsigned int sym_index) | |
17505c5c NC |
484 | { |
485 | arelent * entry; | |
486 | struct internal_reloc * internal; | |
487 | ||
488 | entry = vars->reltab + vars->relcount; | |
489 | internal = vars->int_reltab + vars->relcount; | |
ee91ed79 | 490 | |
17505c5c NC |
491 | entry->address = address; |
492 | entry->addend = 0; | |
493 | entry->howto = bfd_reloc_type_lookup (vars->abfd, reloc); | |
11c8a8d1 | 494 | entry->sym_ptr_ptr = sym; |
17505c5c NC |
495 | |
496 | internal->r_vaddr = address; | |
11c8a8d1 | 497 | internal->r_symndx = sym_index; |
17505c5c NC |
498 | internal->r_type = entry->howto->type; |
499 | #if 0 /* These fields do not need to be initialised. */ | |
500 | internal->r_size = 0; | |
501 | internal->r_extern = 0; | |
502 | internal->r_offset = 0; | |
503 | #endif | |
ee91ed79 | 504 | |
17505c5c | 505 | vars->relcount ++; |
ee91ed79 | 506 | |
17505c5c NC |
507 | BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS); |
508 | } | |
509 | ||
11c8a8d1 NC |
510 | /* Create an empty relocation against the given section. */ |
511 | static void | |
512 | pe_ILF_make_a_reloc (pe_ILF_vars * vars, | |
513 | bfd_vma address, | |
514 | bfd_reloc_code_real_type reloc, | |
515 | asection_ptr sec) | |
516 | { | |
517 | pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr, | |
518 | coff_section_data (vars->abfd, sec)->i); | |
519 | } | |
520 | ||
17505c5c NC |
521 | /* Move the queued relocs into the given section. */ |
522 | static void | |
523 | pe_ILF_save_relocs (pe_ILF_vars * vars, | |
524 | asection_ptr sec) | |
525 | { | |
526 | /* Make sure that there is somewhere to store the internal relocs. */ | |
527 | if (coff_section_data (vars->abfd, sec) == NULL) | |
528 | /* We should probably return an error indication here. */ | |
529 | abort (); | |
530 | ||
531 | coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab; | |
532 | coff_section_data (vars->abfd, sec)->keep_relocs = true; | |
533 | ||
534 | sec->relocation = vars->reltab; | |
535 | sec->reloc_count = vars->relcount; | |
536 | sec->flags |= SEC_RELOC; | |
537 | ||
538 | vars->reltab += vars->relcount; | |
539 | vars->int_reltab += vars->relcount; | |
540 | vars->relcount = 0; | |
541 | ||
542 | BFD_ASSERT ((bfd_byte *)vars->int_reltab < (bfd_byte *)vars->string_table); | |
543 | } | |
544 | ||
545 | /* Create a global symbol and add it to the relevant tables. */ | |
546 | static void | |
547 | pe_ILF_make_a_symbol (pe_ILF_vars * vars, | |
548 | const char * prefix, | |
549 | const char * symbol_name, | |
550 | asection_ptr section, | |
551 | flagword extra_flags) | |
552 | { | |
553 | coff_symbol_type * sym; | |
554 | combined_entry_type * ent; | |
555 | SYMENT * esym; | |
556 | unsigned short sclass; | |
557 | ||
558 | if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 559 | sclass = C_STAT; |
17505c5c NC |
560 | else |
561 | sclass = C_EXT; | |
ee91ed79 KH |
562 | |
563 | #ifdef THUMBPEMAGIC | |
17505c5c NC |
564 | if (vars->magic == THUMBPEMAGIC) |
565 | { | |
566 | if (extra_flags & BSF_FUNCTION) | |
567 | sclass = C_THUMBEXTFUNC; | |
568 | else if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 569 | sclass = C_THUMBSTAT; |
17505c5c NC |
570 | else |
571 | sclass = C_THUMBEXT; | |
572 | } | |
573 | #endif | |
574 | ||
575 | BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS); | |
ee91ed79 | 576 | |
17505c5c NC |
577 | sym = vars->sym_ptr; |
578 | ent = vars->native_ptr; | |
579 | esym = vars->esym_ptr; | |
580 | ||
581 | /* Copy the symbol's name into the string table. */ | |
582 | sprintf (vars->string_ptr, "%s%s", prefix, symbol_name); | |
583 | ||
10821322 NC |
584 | if (section == NULL) |
585 | section = (asection_ptr) & bfd_und_section; | |
ee91ed79 | 586 | |
17505c5c NC |
587 | /* Initialise the external symbol. */ |
588 | bfd_h_put_32 (vars->abfd, vars->string_ptr - vars->string_table, (bfd_byte *) esym->e.e.e_offset); | |
10821322 | 589 | bfd_h_put_16 (vars->abfd, section->target_index, (bfd_byte *) esym->e_scnum); |
17505c5c NC |
590 | esym->e_sclass[0] = sclass; |
591 | ||
592 | /* The following initialisations are unnecessary - the memory is | |
593 | zero initialised. They are just kept here as reminders. */ | |
594 | #if 0 | |
595 | esym->e.e.e_zeroes = 0; | |
596 | esym->e_value = 0; | |
597 | esym->e_type = T_NULL; | |
598 | esym->e_numaux = 0; | |
599 | #endif | |
ee91ed79 | 600 | |
17505c5c NC |
601 | /* Initialise the internal symbol structure. */ |
602 | ent->u.syment.n_sclass = sclass; | |
10821322 | 603 | ent->u.syment.n_scnum = section->target_index; |
17505c5c | 604 | ent->u.syment._n._n_n._n_offset = (long) sym; |
ee91ed79 | 605 | |
17505c5c NC |
606 | #if 0 /* See comment above. */ |
607 | ent->u.syment.n_value = 0; | |
608 | ent->u.syment.n_flags = 0; | |
609 | ent->u.syment.n_type = T_NULL; | |
610 | ent->u.syment.n_numaux = 0; | |
611 | ent->fix_value = 0; | |
612 | #endif | |
ee91ed79 | 613 | |
17505c5c NC |
614 | sym->symbol.the_bfd = vars->abfd; |
615 | sym->symbol.name = vars->string_ptr; | |
616 | sym->symbol.flags = BSF_EXPORT | BSF_GLOBAL | extra_flags; | |
617 | sym->symbol.section = section; | |
618 | sym->native = ent; | |
ee91ed79 | 619 | |
17505c5c NC |
620 | #if 0 /* See comment above. */ |
621 | sym->symbol.value = 0; | |
622 | sym->symbol.udata.i = 0; | |
623 | sym->done_lineno = false; | |
624 | sym->lineno = NULL; | |
625 | #endif | |
ee91ed79 | 626 | |
17505c5c | 627 | * vars->table_ptr = vars->sym_index; |
11c8a8d1 | 628 | * vars->sym_ptr_ptr = sym; |
ee91ed79 | 629 | |
17505c5c NC |
630 | /* Adjust pointers for the next symbol. */ |
631 | vars->sym_index ++; | |
632 | vars->sym_ptr ++; | |
11c8a8d1 | 633 | vars->sym_ptr_ptr ++; |
17505c5c NC |
634 | vars->table_ptr ++; |
635 | vars->native_ptr ++; | |
636 | vars->esym_ptr ++; | |
11c8a8d1 | 637 | vars->string_ptr += strlen (symbol_name) + strlen (prefix) + 1; |
17505c5c NC |
638 | |
639 | BFD_ASSERT (vars->string_ptr < vars->end_string_ptr); | |
640 | } | |
641 | ||
642 | /* Create a section. */ | |
643 | static asection_ptr | |
644 | pe_ILF_make_a_section (pe_ILF_vars * vars, | |
645 | const char * name, | |
646 | unsigned int size, | |
647 | flagword extra_flags) | |
648 | { | |
649 | asection_ptr sec; | |
650 | flagword flags; | |
ee91ed79 | 651 | |
17505c5c NC |
652 | sec = bfd_make_section_old_way (vars->abfd, name); |
653 | if (sec == NULL) | |
654 | return NULL; | |
ee91ed79 | 655 | |
17505c5c | 656 | flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY; |
ee91ed79 | 657 | |
17505c5c | 658 | bfd_set_section_flags (vars->abfd, sec, flags | extra_flags); |
ee91ed79 | 659 | |
17505c5c | 660 | bfd_set_section_alignment (vars->abfd, sec, 2); |
ee91ed79 | 661 | |
17505c5c NC |
662 | /* Check that we will not run out of space. */ |
663 | BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 664 | |
17505c5c NC |
665 | /* Set the section size and contents. The actual |
666 | contents are filled in by our parent. */ | |
667 | bfd_set_section_size (vars->abfd, sec, size); | |
668 | sec->contents = vars->data; | |
669 | sec->target_index = vars->sec_index ++; | |
670 | ||
671 | /* Advance data pointer in the vars structure. */ | |
672 | vars->data += size; | |
ee91ed79 | 673 | |
17505c5c NC |
674 | /* Skip the padding byte if it was not needed. |
675 | The logic here is that if the string length is odd, | |
676 | then the entire string length, including the null byte, | |
677 | is even and so the extra, padding byte, is not needed. */ | |
678 | if (size & 1) | |
679 | vars->data --; | |
ee91ed79 | 680 | |
17505c5c NC |
681 | /* Create a coff_section_tdata structure for our use. */ |
682 | sec->used_by_bfd = (struct coff_section_tdata *) vars->data; | |
683 | vars->data += sizeof (struct coff_section_tdata); | |
684 | ||
685 | BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 686 | |
17505c5c NC |
687 | /* Create a symbol to refer to this section. */ |
688 | pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL); | |
689 | ||
11c8a8d1 | 690 | /* Cache the index to the symbol in the coff_section_data structure. */ |
17505c5c | 691 | coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1; |
ee91ed79 | 692 | |
17505c5c NC |
693 | return sec; |
694 | } | |
695 | ||
696 | /* This structure contains the code that goes into the .text section | |
697 | in order to perform a jump into the DLL lookup table. The entries | |
698 | in the table are index by the magic number used to represent the | |
699 | machine type in the PE file. The contents of the data[] arrays in | |
700 | these entries are stolen from the jtab[] arrays in ld/pe-dll.c. | |
701 | The SIZE field says how many bytes in the DATA array are actually | |
702 | used. The OFFSET field says where in the data array the address | |
703 | of the .idata$5 section should be placed. */ | |
704 | #define MAX_TEXT_SECTION_SIZE 32 | |
705 | ||
706 | typedef struct | |
707 | { | |
708 | unsigned short magic; | |
709 | unsigned char data[MAX_TEXT_SECTION_SIZE]; | |
710 | unsigned int size; | |
711 | unsigned int offset; | |
712 | } | |
713 | jump_table; | |
714 | ||
86033394 | 715 | static jump_table jtab[] = |
17505c5c NC |
716 | { |
717 | #ifdef I386MAGIC | |
718 | { I386MAGIC, | |
719 | { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, | |
720 | 8, 2 | |
721 | }, | |
722 | #endif | |
ee91ed79 | 723 | |
17505c5c NC |
724 | #ifdef MC68MAGIC |
725 | { MC68MAGIC, { /* XXX fill me in */ }, 0, 0 }, | |
726 | #endif | |
727 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
728 | { MIPS_ARCH_MAGIC_WINCE, | |
729 | { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, | |
730 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 }, | |
731 | 16, 0 | |
732 | }, | |
733 | #endif | |
ee91ed79 | 734 | |
17505c5c NC |
735 | #ifdef SH_ARCH_MAGIC_WINCE |
736 | { SH_ARCH_MAGIC_WINCE, | |
737 | { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, | |
738 | 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 }, | |
739 | 12, 8 | |
740 | }, | |
741 | #endif | |
ee91ed79 | 742 | |
17505c5c NC |
743 | #ifdef ARMPEMAGIC |
744 | { ARMPEMAGIC, | |
745 | { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0, | |
746 | 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00}, | |
747 | 12, 8 | |
748 | }, | |
749 | #endif | |
ee91ed79 | 750 | |
17505c5c NC |
751 | #ifdef THUMBPEMAGIC |
752 | { THUMBPEMAGIC, | |
753 | { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46, | |
754 | 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 }, | |
755 | 16, 12 | |
756 | }, | |
757 | #endif | |
758 | { 0, { 0 }, 0, 0 } | |
759 | }; | |
760 | ||
761 | #ifndef NUM_ENTRIES | |
762 | #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0]) | |
763 | #endif | |
764 | ||
765 | /* Build a full BFD from the information supplied in a ILF object. */ | |
766 | static boolean | |
767 | pe_ILF_build_a_bfd (bfd * abfd, | |
768 | unsigned short magic, | |
769 | bfd_byte * symbol_name, | |
770 | bfd_byte * source_dll, | |
771 | unsigned int ordinal, | |
772 | unsigned int types) | |
ee91ed79 | 773 | { |
17505c5c NC |
774 | bfd_byte * ptr; |
775 | pe_ILF_vars vars; | |
776 | struct internal_filehdr internal_f; | |
777 | unsigned int import_type; | |
778 | unsigned int import_name_type; | |
11c8a8d1 NC |
779 | asection_ptr id4, id5, id6 = NULL, text = NULL; |
780 | coff_symbol_type ** imp_sym; | |
781 | unsigned int imp_index; | |
17505c5c | 782 | |
17505c5c NC |
783 | /* Decode and verify the types field of the ILF structure. */ |
784 | import_type = types & 0x3; | |
785 | import_name_type = (types & 0x1c) >> 2; | |
786 | ||
787 | switch (import_type) | |
788 | { | |
789 | case IMPORT_CODE: | |
790 | case IMPORT_DATA: | |
791 | break; | |
ee91ed79 | 792 | |
17505c5c NC |
793 | case IMPORT_CONST: |
794 | /* XXX code yet to be written. */ | |
795 | _bfd_error_handler (_("%s: Unhandled import type; %x"), | |
796 | bfd_get_filename (abfd), import_type); | |
797 | return false; | |
ee91ed79 | 798 | |
17505c5c NC |
799 | default: |
800 | _bfd_error_handler (_("%s: Unrecognised import type; %x"), | |
801 | bfd_get_filename (abfd), import_type); | |
802 | return false; | |
803 | } | |
804 | ||
805 | switch (import_name_type) | |
806 | { | |
807 | case IMPORT_ORDINAL: | |
808 | case IMPORT_NAME: | |
809 | case IMPORT_NAME_NOPREFIX: | |
810 | case IMPORT_NAME_UNDECORATE: | |
811 | break; | |
ee91ed79 | 812 | |
17505c5c NC |
813 | default: |
814 | _bfd_error_handler (_("%s: Unrecognised import name type; %x"), | |
815 | bfd_get_filename (abfd), import_name_type); | |
816 | return false; | |
817 | } | |
818 | ||
819 | /* Initialise local variables. | |
ee91ed79 | 820 | |
17505c5c NC |
821 | Note these are kept in a structure rather than being |
822 | declared as statics since bfd frowns on global variables. | |
ee91ed79 | 823 | |
17505c5c NC |
824 | We are going to construct the contents of the BFD in memory, |
825 | so allocate all the space that we will need right now. */ | |
826 | ptr = bfd_zalloc (abfd, ILF_DATA_SIZE); | |
827 | if (ptr == NULL) | |
828 | return false; | |
829 | ||
830 | /* Create a bfd_in_memory structure. */ | |
831 | vars.bim = (struct bfd_in_memory *) ptr; | |
832 | vars.bim->buffer = ptr; | |
833 | vars.bim->size = ILF_DATA_SIZE; | |
834 | ptr += sizeof (* vars.bim); | |
ee91ed79 | 835 | |
17505c5c NC |
836 | /* Initialise the pointers to regions of the memory and the |
837 | other contents of the pe_ILF_vars structure as well. */ | |
838 | vars.sym_cache = (coff_symbol_type *) ptr; | |
839 | vars.sym_ptr = (coff_symbol_type *) ptr; | |
840 | vars.sym_index = 0; | |
841 | ptr += SIZEOF_ILF_SYMS; | |
ee91ed79 | 842 | |
17505c5c NC |
843 | vars.sym_table = (unsigned int *) ptr; |
844 | vars.table_ptr = (unsigned int *) ptr; | |
845 | ptr += SIZEOF_ILF_SYM_TABLE; | |
846 | ||
847 | vars.native_syms = (combined_entry_type *) ptr; | |
848 | vars.native_ptr = (combined_entry_type *) ptr; | |
849 | ptr += SIZEOF_ILF_NATIVE_SYMS; | |
11c8a8d1 NC |
850 | |
851 | vars.sym_ptr_table = (coff_symbol_type **) ptr; | |
852 | vars.sym_ptr_ptr = (coff_symbol_type **) ptr; | |
853 | ptr += SIZEOF_ILF_SYM_PTR_TABLE; | |
ee91ed79 | 854 | |
17505c5c NC |
855 | vars.esym_table = (SYMENT *) ptr; |
856 | vars.esym_ptr = (SYMENT *) ptr; | |
857 | ptr += SIZEOF_ILF_EXT_SYMS; | |
ee91ed79 | 858 | |
17505c5c NC |
859 | vars.reltab = (arelent *) ptr; |
860 | vars.relcount = 0; | |
861 | ptr += SIZEOF_ILF_RELOCS; | |
862 | ||
863 | vars.int_reltab = (struct internal_reloc *) ptr; | |
864 | ptr += SIZEOF_ILF_INT_RELOCS; | |
865 | ||
866 | vars.string_table = ptr; | |
867 | vars.string_ptr = ptr + STRING_SIZE_SIZE; | |
868 | ptr += SIZEOF_ILF_STRINGS; | |
869 | vars.end_string_ptr = ptr; | |
ee91ed79 | 870 | |
17505c5c NC |
871 | /* The remaining space in bim->buffer is used |
872 | by the pe_ILF_make_a_section() function. */ | |
873 | vars.data = ptr; | |
874 | vars.abfd = abfd; | |
875 | vars.sec_index = 0; | |
876 | vars.magic = magic; | |
ee91ed79 | 877 | |
17505c5c | 878 | /* Create the initial .idata$<n> sections: |
11c8a8d1 | 879 | [.idata$2: Import Directory Table -- not needed] |
17505c5c NC |
880 | .idata$4: Import Lookup Table |
881 | .idata$5: Import Address Table | |
882 | ||
883 | Note we do not create a .idata$3 section as this is | |
884 | created for us by the linker script. */ | |
17505c5c NC |
885 | id4 = pe_ILF_make_a_section (& vars, ".idata$4", SIZEOF_IDATA4, 0); |
886 | id5 = pe_ILF_make_a_section (& vars, ".idata$5", SIZEOF_IDATA5, 0); | |
11c8a8d1 | 887 | if (id4 == NULL || id5 == NULL) |
17505c5c | 888 | return false; |
ee91ed79 | 889 | |
17505c5c NC |
890 | /* Fill in the contents of these sections. */ |
891 | if (import_name_type == IMPORT_ORDINAL) | |
892 | { | |
893 | if (ordinal == 0) | |
894 | /* XXX - treat as IMPORT_NAME ??? */ | |
895 | abort (); | |
ee91ed79 | 896 | |
fc633e5b AM |
897 | * (unsigned int *) id4->contents = ordinal | 0x80000000; |
898 | * (unsigned int *) id5->contents = ordinal | 0x80000000; | |
17505c5c NC |
899 | } |
900 | else | |
901 | { | |
902 | char * symbol; | |
ee91ed79 | 903 | |
17505c5c NC |
904 | /* Create .idata$6 - the Hint Name Table. */ |
905 | id6 = pe_ILF_make_a_section (& vars, ".idata$6", SIZEOF_IDATA6, 0); | |
906 | if (id6 == NULL) | |
907 | return false; | |
908 | ||
909 | /* If necessary, trim the import symbol name. */ | |
910 | symbol = symbol_name; | |
911 | ||
912 | if (import_name_type != IMPORT_NAME) | |
913 | /* Skip any prefix in symbol_name. */ | |
914 | while (*symbol == '@' || * symbol == '?' || * symbol == '_') | |
915 | ++ symbol; | |
916 | ||
917 | if (import_name_type == IMPORT_NAME_UNDECORATE) | |
918 | { | |
919 | /* Truncate at the first '@' */ | |
920 | while (* symbol != 0 && * symbol != '@') | |
921 | symbol ++; | |
922 | ||
923 | * symbol = 0; | |
924 | } | |
ee91ed79 | 925 | |
11c8a8d1 NC |
926 | id6->contents[0] = ordinal & 0xff; |
927 | id6->contents[1] = ordinal >> 8; | |
ee91ed79 | 928 | |
11c8a8d1 | 929 | strcpy (id6->contents + 2, symbol); |
17505c5c NC |
930 | } |
931 | ||
17505c5c NC |
932 | if (import_name_type != IMPORT_ORDINAL) |
933 | { | |
934 | pe_ILF_make_a_reloc (& vars, 0, BFD_RELOC_RVA, id6); | |
935 | pe_ILF_save_relocs (& vars, id4); | |
ee91ed79 | 936 | |
17505c5c NC |
937 | pe_ILF_make_a_reloc (& vars, 0, BFD_RELOC_RVA, id6); |
938 | pe_ILF_save_relocs (& vars, id5); | |
939 | } | |
940 | ||
941 | /* Create extra sections depending upon the type of import we are dealing with. */ | |
942 | switch (import_type) | |
943 | { | |
944 | int i; | |
ee91ed79 | 945 | |
17505c5c NC |
946 | case IMPORT_CODE: |
947 | /* Create a .text section. | |
948 | First we need to look up its contents in the jump table. */ | |
949 | for (i = NUM_ENTRIES (jtab); i--;) | |
950 | { | |
951 | if (jtab[i].size == 0) | |
952 | continue; | |
953 | if (jtab[i].magic == magic) | |
954 | break; | |
955 | } | |
956 | /* If we did not find a matching entry something is wrong. */ | |
957 | if (i < 0) | |
958 | abort (); | |
959 | ||
960 | /* Create the .text section. */ | |
961 | text = pe_ILF_make_a_section (& vars, ".text", jtab[i].size, SEC_CODE); | |
962 | if (text == NULL) | |
963 | return false; | |
964 | ||
965 | /* Copy in the jump code. */ | |
966 | memcpy (text->contents, jtab[i].data, jtab[i].size); | |
967 | ||
11c8a8d1 NC |
968 | /* Create an import symbol. */ |
969 | pe_ILF_make_a_symbol (& vars, "__imp_", symbol_name, id5, 0); | |
970 | imp_sym = vars.sym_ptr_ptr - 1; | |
971 | imp_index = vars.sym_index - 1; | |
ee91ed79 | 972 | |
17505c5c | 973 | /* Create a reloc for the data in the text section. */ |
ee91ed79 | 974 | #ifdef MIPS_ARCH_MAGIC_WINCE |
17505c5c NC |
975 | if (magic == MIPS_ARCH_MAGIC_WINCE) |
976 | { | |
11c8a8d1 | 977 | pe_ILF_make_a_symbol_reloc (& vars, 0, BFD_RELOC_HI16_S, |
23ccc829 | 978 | (struct symbol_cache_entry **) imp_sym, imp_index); |
17505c5c | 979 | pe_ILF_make_a_reloc (& vars, 0, BFD_RELOC_LO16, text); |
11c8a8d1 | 980 | pe_ILF_make_a_symbol_reloc (& vars, 4, BFD_RELOC_LO16, |
23ccc829 | 981 | (struct symbol_cache_entry **) imp_sym, imp_index); |
17505c5c NC |
982 | } |
983 | else | |
984 | #endif | |
11c8a8d1 NC |
985 | pe_ILF_make_a_symbol_reloc (& vars, jtab[i].offset, BFD_RELOC_32, |
986 | (asymbol **) imp_sym, imp_index); | |
ee91ed79 | 987 | |
17505c5c NC |
988 | pe_ILF_save_relocs (& vars, text); |
989 | break; | |
990 | ||
991 | case IMPORT_DATA: | |
992 | break; | |
993 | ||
994 | default: | |
995 | /* XXX code not yet written. */ | |
996 | abort (); | |
997 | } | |
ee91ed79 | 998 | |
17505c5c NC |
999 | /* Initialise the bfd. */ |
1000 | memset (& internal_f, 0, sizeof (internal_f)); | |
ee91ed79 | 1001 | |
17505c5c NC |
1002 | internal_f.f_magic = magic; |
1003 | internal_f.f_symptr = 0; | |
1004 | internal_f.f_nsyms = 0; | |
1005 | internal_f.f_flags = F_AR32WR | F_LNNO; /* XXX is this correct ? */ | |
ee91ed79 | 1006 | |
17505c5c NC |
1007 | if ( ! bfd_set_start_address (abfd, 0) |
1008 | || ! bfd_coff_set_arch_mach_hook (abfd, & internal_f)) | |
1009 | return false; | |
1010 | ||
1011 | if (bfd_coff_mkobject_hook (abfd, (PTR) & internal_f, NULL) == NULL) | |
1012 | return false; | |
1013 | ||
1014 | coff_data (abfd)->pe = 1; | |
ee91ed79 | 1015 | #ifdef THUMBPEMAGIC |
17505c5c NC |
1016 | if (vars.magic == THUMBPEMAGIC) |
1017 | /* Stop some linker warnings about thumb code not supporting interworking. */ | |
1018 | coff_data (abfd)->flags |= F_INTERWORK | F_INTERWORK_SET; | |
1019 | #endif | |
ee91ed79 | 1020 | |
17505c5c NC |
1021 | /* Switch from file contents to memory contents. */ |
1022 | bfd_cache_close (abfd); | |
1023 | ||
1024 | abfd->iostream = (PTR) vars.bim; | |
1025 | abfd->flags |= BFD_IN_MEMORY /* | HAS_LOCALS */; | |
1026 | abfd->where = 0; | |
1027 | obj_sym_filepos (abfd) = 0; | |
1028 | ||
1029 | /* Now create a symbol describing the imported value. */ | |
1030 | switch (import_type) | |
1031 | { | |
11c8a8d1 | 1032 | bfd_byte * ptr; |
ee91ed79 | 1033 | |
17505c5c NC |
1034 | case IMPORT_CODE: |
1035 | pe_ILF_make_a_symbol (& vars, "", symbol_name, text, | |
1036 | BSF_NOT_AT_END | BSF_FUNCTION); | |
ee91ed79 | 1037 | |
11c8a8d1 NC |
1038 | /* Create an import symbol for the DLL, without the |
1039 | .dll suffix. */ | |
1040 | ptr = strrchr (source_dll, '.'); | |
1041 | if (ptr) | |
1042 | * ptr = 0; | |
1043 | pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0); | |
1044 | if (ptr) | |
1045 | * ptr = '.'; | |
17505c5c NC |
1046 | break; |
1047 | ||
1048 | case IMPORT_DATA: | |
11c8a8d1 | 1049 | /* Nothing to do here. */ |
17505c5c | 1050 | break; |
ee91ed79 | 1051 | |
17505c5c NC |
1052 | default: |
1053 | /* XXX code not yet written. */ | |
1054 | abort (); | |
1055 | } | |
1056 | ||
17505c5c NC |
1057 | /* Point the bfd at the symbol table. */ |
1058 | obj_symbols (abfd) = vars.sym_cache; | |
1059 | bfd_get_symcount (abfd) = vars.sym_index; | |
ee91ed79 | 1060 | |
17505c5c NC |
1061 | obj_raw_syments (abfd) = vars.native_syms; |
1062 | obj_raw_syment_count (abfd) = vars.sym_index; | |
1063 | ||
1064 | obj_coff_external_syms (abfd) = (PTR) vars.esym_table; | |
1065 | obj_coff_keep_syms (abfd) = true; | |
ee91ed79 | 1066 | |
17505c5c NC |
1067 | obj_convert (abfd) = vars.sym_table; |
1068 | obj_conv_table_size (abfd) = vars.sym_index; | |
ee91ed79 | 1069 | |
17505c5c NC |
1070 | obj_coff_strings (abfd) = vars.string_table; |
1071 | obj_coff_keep_strings (abfd) = true; | |
1072 | ||
1073 | abfd->flags |= HAS_SYMS; | |
1074 | ||
1075 | return true; | |
1076 | } | |
1077 | ||
1078 | /* We have detected a Image Library Format archive element. | |
1079 | Decode the element and return the appropriate target. */ | |
cb665cd3 | 1080 | static const bfd_target * |
17505c5c NC |
1081 | pe_ILF_object_p (bfd * abfd) |
1082 | { | |
1083 | bfd_byte buffer[16]; | |
1084 | bfd_byte * ptr; | |
1085 | bfd_byte * symbol_name; | |
1086 | bfd_byte * source_dll; | |
1087 | unsigned int machine; | |
1088 | unsigned long size; | |
1089 | unsigned int ordinal; | |
1090 | unsigned int types; | |
1091 | unsigned short magic; | |
ee91ed79 | 1092 | |
17505c5c NC |
1093 | /* Upon entry the first four buyes of the ILF header have |
1094 | already been read. Now read the rest of the header. */ | |
1095 | if (bfd_read (buffer, 1, 16, abfd) != 16) | |
1096 | return NULL; | |
1097 | ||
1098 | ptr = buffer; | |
ee91ed79 | 1099 | |
17505c5c NC |
1100 | /* We do not bother to check the version number. |
1101 | version = bfd_h_get_16 (abfd, ptr); */ | |
1102 | ptr += 2; | |
1103 | ||
1104 | machine = bfd_h_get_16 (abfd, ptr); | |
1105 | ptr += 2; | |
1106 | ||
1107 | /* Check that the machine type is recognised. */ | |
1108 | magic = 0; | |
ee91ed79 | 1109 | |
17505c5c NC |
1110 | switch (machine) |
1111 | { | |
1112 | case IMAGE_FILE_MACHINE_UNKNOWN: | |
1113 | case IMAGE_FILE_MACHINE_ALPHA: | |
1114 | case IMAGE_FILE_MACHINE_ALPHA64: | |
1115 | case IMAGE_FILE_MACHINE_IA64: | |
1116 | break; | |
ee91ed79 | 1117 | |
17505c5c NC |
1118 | case IMAGE_FILE_MACHINE_I386: |
1119 | #ifdef I386MAGIC | |
1120 | magic = I386MAGIC; | |
1121 | #endif | |
1122 | break; | |
ee91ed79 | 1123 | |
17505c5c NC |
1124 | case IMAGE_FILE_MACHINE_M68K: |
1125 | #ifdef MC68AGIC | |
1126 | magic = MC68MAGIC; | |
1127 | #endif | |
1128 | break; | |
ee91ed79 | 1129 | |
17505c5c NC |
1130 | case IMAGE_FILE_MACHINE_R3000: |
1131 | case IMAGE_FILE_MACHINE_R4000: | |
1132 | case IMAGE_FILE_MACHINE_R10000: | |
ee91ed79 | 1133 | |
17505c5c NC |
1134 | case IMAGE_FILE_MACHINE_MIPS16: |
1135 | case IMAGE_FILE_MACHINE_MIPSFPU: | |
1136 | case IMAGE_FILE_MACHINE_MIPSFPU16: | |
1137 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
1138 | magic = MIPS_ARCH_MAGIC_WINCE; | |
1139 | #endif | |
1140 | break; | |
ee91ed79 | 1141 | |
17505c5c NC |
1142 | case IMAGE_FILE_MACHINE_SH3: |
1143 | case IMAGE_FILE_MACHINE_SH4: | |
1144 | #ifdef SH_ARCH_MAGIC_WINCE | |
1145 | magic = SH_ARCH_MAGIC_WINCE; | |
1146 | #endif | |
1147 | break; | |
ee91ed79 | 1148 | |
17505c5c NC |
1149 | case IMAGE_FILE_MACHINE_ARM: |
1150 | #ifdef ARMPEMAGIC | |
1151 | magic = ARMPEMAGIC; | |
ee91ed79 | 1152 | #endif |
17505c5c | 1153 | break; |
ee91ed79 | 1154 | |
17505c5c NC |
1155 | case IMAGE_FILE_MACHINE_THUMB: |
1156 | #ifdef THUMBPEMAGIC | |
1157 | { | |
23ccc829 | 1158 | extern const bfd_target TARGET_LITTLE_SYM; |
ee91ed79 | 1159 | |
26bfd1c0 | 1160 | if (abfd->xvec == & TARGET_LITTLE_SYM) |
17505c5c NC |
1161 | magic = THUMBPEMAGIC; |
1162 | } | |
ee91ed79 | 1163 | #endif |
17505c5c | 1164 | break; |
ee91ed79 | 1165 | |
17505c5c NC |
1166 | case IMAGE_FILE_MACHINE_POWERPC: |
1167 | /* We no longer support PowerPC. */ | |
1168 | default: | |
1169 | _bfd_error_handler | |
1170 | ( | |
1171 | _("%s: Unrecognised machine type (0x%x) in Import Library Format archive"), | |
1172 | bfd_get_filename (abfd), machine); | |
1173 | bfd_set_error (bfd_error_malformed_archive); | |
ee91ed79 | 1174 | |
17505c5c NC |
1175 | return NULL; |
1176 | break; | |
1177 | } | |
1178 | ||
1179 | if (magic == 0) | |
1180 | { | |
1181 | _bfd_error_handler | |
1182 | ( | |
1183 | _("%s: Recognised but unhandled machine type (0x%x) in Import Library Format archive"), | |
1184 | bfd_get_filename (abfd), machine); | |
1185 | bfd_set_error (bfd_error_wrong_format); | |
ee91ed79 | 1186 | |
17505c5c | 1187 | return NULL; |
ee91ed79 | 1188 | } |
17505c5c NC |
1189 | |
1190 | /* We do not bother to check the date. | |
1191 | date = bfd_h_get_32 (abfd, ptr); */ | |
1192 | ptr += 4; | |
ee91ed79 | 1193 | |
17505c5c NC |
1194 | size = bfd_h_get_32 (abfd, ptr); |
1195 | ptr += 4; | |
1196 | ||
1197 | if (size == 0) | |
1198 | { | |
1199 | _bfd_error_handler | |
1200 | (_("%s: size field is zero in Import Library Format header"), | |
1201 | bfd_get_filename (abfd)); | |
1202 | bfd_set_error (bfd_error_malformed_archive); | |
ee91ed79 | 1203 | |
17505c5c NC |
1204 | return NULL; |
1205 | } | |
1206 | ||
1207 | ordinal = bfd_h_get_16 (abfd, ptr); | |
1208 | ptr += 2; | |
1209 | ||
1210 | types = bfd_h_get_16 (abfd, ptr); | |
1211 | /* ptr += 2; */ | |
1212 | ||
1213 | /* Now read in the two strings that follow. */ | |
1214 | ptr = bfd_alloc (abfd, size); | |
1215 | if (ptr == NULL) | |
1216 | return NULL; | |
ee91ed79 | 1217 | |
17505c5c NC |
1218 | if (bfd_read (ptr, 1, size, abfd) != size) |
1219 | return NULL; | |
1220 | ||
1221 | symbol_name = ptr; | |
1222 | source_dll = ptr + strlen (ptr) + 1; | |
ee91ed79 | 1223 | |
17505c5c | 1224 | /* Verify that the strings are null terminated. */ |
11c8a8d1 | 1225 | if (ptr[size - 1] != 0 || ((unsigned long) (source_dll - ptr) >= size)) |
17505c5c NC |
1226 | { |
1227 | _bfd_error_handler | |
1228 | (_("%s: string not null terminated in ILF object file."), | |
1229 | bfd_get_filename (abfd)); | |
1230 | bfd_set_error (bfd_error_malformed_archive); | |
ee91ed79 | 1231 | |
17505c5c NC |
1232 | return NULL; |
1233 | } | |
ee91ed79 | 1234 | |
17505c5c NC |
1235 | /* Now construct the bfd. */ |
1236 | if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name, | |
1237 | source_dll, ordinal, types)) | |
1238 | return NULL; | |
ee91ed79 | 1239 | |
17505c5c NC |
1240 | return abfd->xvec; |
1241 | } | |
1242 | ||
1243 | static const bfd_target * | |
1244 | pe_bfd_object_p (bfd * abfd) | |
cb665cd3 | 1245 | { |
cb665cd3 | 1246 | bfd_byte buffer[4]; |
15e0ecd9 L |
1247 | struct external_PEI_DOS_hdr dos_hdr; |
1248 | struct external_PEI_IMAGE_hdr image_hdr; | |
cb665cd3 | 1249 | file_ptr offset; |
cb665cd3 NC |
1250 | |
1251 | /* Detect if this a Microsoft Import Library Format element. */ | |
1252 | if (bfd_seek (abfd, 0x00, SEEK_SET) != 0 | |
1253 | || bfd_read (buffer, 1, 4, abfd) != 4) | |
1254 | { | |
1255 | if (bfd_get_error () != bfd_error_system_call) | |
1256 | bfd_set_error (bfd_error_wrong_format); | |
1257 | return NULL; | |
1258 | } | |
ee91ed79 | 1259 | |
15e0ecd9 | 1260 | if (bfd_h_get_32 (abfd, buffer) == 0xffff0000) |
17505c5c | 1261 | return pe_ILF_object_p (abfd); |
ee91ed79 | 1262 | |
15e0ecd9 L |
1263 | if (bfd_seek (abfd, 0x00, SEEK_SET) != 0 |
1264 | || bfd_read (&dos_hdr, 1, sizeof (dos_hdr), abfd) | |
1265 | != sizeof (dos_hdr)) | |
cb665cd3 NC |
1266 | { |
1267 | if (bfd_get_error () != bfd_error_system_call) | |
1268 | bfd_set_error (bfd_error_wrong_format); | |
1269 | return NULL; | |
1270 | } | |
1271 | ||
15e0ecd9 L |
1272 | /* There are really two magic numbers involved; the magic number |
1273 | that says this is a NT executable (PEI) and the magic number that | |
1274 | determines the architecture. The former is DOSMAGIC, stored in | |
1275 | the e_magic field. The latter is stored in the f_magic field. | |
1276 | If the NT magic number isn't valid, the architecture magic number | |
1277 | could be mimicked by some other field (specifically, the number | |
1278 | of relocs in section 3). Since this routine can only be called | |
1279 | correctly for a PEI file, check the e_magic number here, and, if | |
1280 | it doesn't match, clobber the f_magic number so that we don't get | |
1281 | a false match. */ | |
1282 | if (bfd_h_get_16 (abfd, (bfd_byte *) dos_hdr.e_magic) != DOSMAGIC) | |
1283 | { | |
1284 | bfd_set_error (bfd_error_wrong_format); | |
1285 | return NULL; | |
1286 | } | |
cb665cd3 | 1287 | |
15e0ecd9 L |
1288 | offset = bfd_h_get_32 (abfd, (bfd_byte *) dos_hdr.e_lfanew); |
1289 | if (bfd_seek (abfd, (file_ptr) offset, SEEK_SET) != 0 | |
1290 | || bfd_read (&image_hdr, 1, sizeof (image_hdr), abfd) | |
1291 | != sizeof (image_hdr)) | |
cb665cd3 NC |
1292 | { |
1293 | if (bfd_get_error () != bfd_error_system_call) | |
1294 | bfd_set_error (bfd_error_wrong_format); | |
1295 | return NULL; | |
1296 | } | |
1297 | ||
15e0ecd9 L |
1298 | if (bfd_h_get_32 (abfd, (bfd_byte *) image_hdr.nt_signature) |
1299 | != 0x4550) | |
cb665cd3 NC |
1300 | { |
1301 | bfd_set_error (bfd_error_wrong_format); | |
1302 | return NULL; | |
1303 | } | |
ee91ed79 | 1304 | |
cb665cd3 | 1305 | /* Here is the hack. coff_object_p wants to read filhsz bytes to |
15e0ecd9 L |
1306 | pick up the COFF header for PE, see "struct external_PEI_filehdr" |
1307 | in include/coff/pe.h. We adjust so that that will work. */ | |
cb665cd3 | 1308 | if (bfd_seek (abfd, |
15e0ecd9 | 1309 | (file_ptr) (offset - sizeof (dos_hdr)), |
cb665cd3 NC |
1310 | SEEK_SET) |
1311 | != 0) | |
1312 | { | |
1313 | if (bfd_get_error () != bfd_error_system_call) | |
1314 | bfd_set_error (bfd_error_wrong_format); | |
1315 | return NULL; | |
1316 | } | |
1317 | ||
1318 | return coff_object_p (abfd); | |
1319 | } | |
1320 | ||
1321 | #define coff_object_p pe_bfd_object_p | |
17505c5c | 1322 | #endif /* COFF_IMAGE_WITH_PE */ |