Commit | Line | Data |
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277d1b5e | 1 | /* Support for the generic parts of PE/PEI, for BFD. |
86033394 | 2 | Copyright 1995, 1996, 1997, 1998, 1999, 2000 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 | ||
05bf877a ILT |
211 | #ifdef COFF_IMAGE_WITH_PE |
212 | /* There are really two magic numbers involved; the magic number | |
213 | that says this is a NT executable (PEI) and the magic number that | |
214 | determines the architecture. The former is DOSMAGIC, stored in | |
215 | the e_magic field. The latter is stored in the f_magic field. | |
216 | If the NT magic number isn't valid, the architecture magic number | |
217 | could be mimicked by some other field (specifically, the number | |
218 | of relocs in section 3). Since this routine can only be called | |
219 | correctly for a PEI file, check the e_magic number here, and, if | |
220 | it doesn't match, clobber the f_magic number so that we don't get | |
221 | a false match. */ | |
c689311b DD |
222 | #if 0 |
223 | /* We can't assume that the PE header is at offset 0x80. When it | |
224 | isn't, the DOS header isn't read correctly, so we can't assume | |
ee91ed79 | 225 | e_magic is set even for valid PE files. */ |
05bf877a ILT |
226 | if (bfd_h_get_16 (abfd, (bfd_byte *) filehdr_src->e_magic) != DOSMAGIC) |
227 | filehdr_dst->f_magic = -1; | |
c689311b | 228 | #endif |
05bf877a ILT |
229 | #endif |
230 | ||
252b5132 RH |
231 | /* Other people's tools sometimes generate headers with an nsyms but |
232 | a zero symptr. */ | |
233 | if (filehdr_dst->f_nsyms != 0 && filehdr_dst->f_symptr == 0) | |
234 | { | |
235 | filehdr_dst->f_nsyms = 0; | |
236 | filehdr_dst->f_flags |= F_LSYMS; | |
237 | } | |
238 | ||
ee91ed79 | 239 | filehdr_dst->f_opthdr = bfd_h_get_16(abfd, |
252b5132 RH |
240 | (bfd_byte *)filehdr_src-> f_opthdr); |
241 | } | |
242 | ||
243 | #ifdef COFF_IMAGE_WITH_PE | |
277d1b5e | 244 | #define coff_swap_filehdr_out _bfd_pei_only_swap_filehdr_out |
252b5132 | 245 | #else |
277d1b5e | 246 | #define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out |
252b5132 | 247 | #endif |
252b5132 | 248 | |
252b5132 | 249 | static void |
e166a60f ILT |
250 | coff_swap_scnhdr_in (abfd, ext, in) |
251 | bfd *abfd; | |
252 | PTR ext; | |
253 | PTR in; | |
252b5132 RH |
254 | { |
255 | SCNHDR *scnhdr_ext = (SCNHDR *) ext; | |
256 | struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in; | |
257 | ||
ee91ed79 | 258 | memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof (scnhdr_int->s_name)); |
252b5132 RH |
259 | scnhdr_int->s_vaddr = |
260 | GET_SCNHDR_VADDR (abfd, (bfd_byte *) scnhdr_ext->s_vaddr); | |
261 | scnhdr_int->s_paddr = | |
262 | GET_SCNHDR_PADDR (abfd, (bfd_byte *) scnhdr_ext->s_paddr); | |
263 | scnhdr_int->s_size = | |
264 | GET_SCNHDR_SIZE (abfd, (bfd_byte *) scnhdr_ext->s_size); | |
265 | scnhdr_int->s_scnptr = | |
266 | GET_SCNHDR_SCNPTR (abfd, (bfd_byte *) scnhdr_ext->s_scnptr); | |
267 | scnhdr_int->s_relptr = | |
268 | GET_SCNHDR_RELPTR (abfd, (bfd_byte *) scnhdr_ext->s_relptr); | |
269 | scnhdr_int->s_lnnoptr = | |
270 | GET_SCNHDR_LNNOPTR (abfd, (bfd_byte *) scnhdr_ext->s_lnnoptr); | |
271 | scnhdr_int->s_flags = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_flags); | |
272 | ||
cb43721d ILT |
273 | /* MS handles overflow of line numbers by carrying into the reloc |
274 | field (it appears). Since it's supposed to be zero for PE | |
275 | *IMAGE* format, that's safe. This is still a bit iffy. */ | |
276 | #ifdef COFF_IMAGE_WITH_PE | |
277 | scnhdr_int->s_nlnno = | |
278 | (bfd_h_get_16 (abfd, (bfd_byte *) scnhdr_ext->s_nlnno) | |
279 | + (bfd_h_get_16 (abfd, (bfd_byte *) scnhdr_ext->s_nreloc) << 16)); | |
280 | scnhdr_int->s_nreloc = 0; | |
281 | #else | |
282 | scnhdr_int->s_nreloc = bfd_h_get_16 (abfd, | |
283 | (bfd_byte *) scnhdr_ext->s_nreloc); | |
284 | scnhdr_int->s_nlnno = bfd_h_get_16 (abfd, | |
285 | (bfd_byte *) scnhdr_ext->s_nlnno); | |
286 | #endif | |
252b5132 | 287 | |
ee91ed79 | 288 | if (scnhdr_int->s_vaddr != 0) |
252b5132 RH |
289 | { |
290 | scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase; | |
291 | scnhdr_int->s_vaddr &= 0xffffffff; | |
292 | } | |
e166a60f | 293 | |
17505c5c | 294 | #ifndef COFF_NO_HACK_SCNHDR_SIZE |
e166a60f ILT |
295 | /* If this section holds uninitialized data, use the virtual size |
296 | (stored in s_paddr) instead of the physical size. */ | |
297 | if ((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0) | |
252b5132 RH |
298 | { |
299 | scnhdr_int->s_size = scnhdr_int->s_paddr; | |
e166a60f ILT |
300 | /* This code used to set scnhdr_int->s_paddr to 0. However, |
301 | coff_set_alignment_hook stores s_paddr in virt_size, which | |
302 | only works if it correctly holds the virtual size of the | |
303 | section. */ | |
252b5132 | 304 | } |
17505c5c | 305 | #endif |
252b5132 RH |
306 | } |
307 | ||
252b5132 RH |
308 | static boolean |
309 | pe_mkobject (abfd) | |
310 | bfd * abfd; | |
311 | { | |
312 | pe_data_type *pe; | |
ee91ed79 | 313 | abfd->tdata.pe_obj_data = |
252b5132 RH |
314 | (struct pe_tdata *) bfd_zalloc (abfd, sizeof (pe_data_type)); |
315 | ||
316 | if (abfd->tdata.pe_obj_data == 0) | |
317 | return false; | |
318 | ||
319 | pe = pe_data (abfd); | |
320 | ||
321 | pe->coff.pe = 1; | |
277d1b5e ILT |
322 | |
323 | /* in_reloc_p is architecture dependent. */ | |
252b5132 RH |
324 | pe->in_reloc_p = in_reloc_p; |
325 | return true; | |
326 | } | |
327 | ||
328 | /* Create the COFF backend specific information. */ | |
329 | static PTR | |
330 | pe_mkobject_hook (abfd, filehdr, aouthdr) | |
331 | bfd * abfd; | |
332 | PTR filehdr; | |
5f771d47 | 333 | PTR aouthdr ATTRIBUTE_UNUSED; |
252b5132 RH |
334 | { |
335 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
336 | pe_data_type *pe; | |
337 | ||
338 | if (pe_mkobject (abfd) == false) | |
339 | return NULL; | |
340 | ||
341 | pe = pe_data (abfd); | |
342 | pe->coff.sym_filepos = internal_f->f_symptr; | |
343 | /* These members communicate important constants about the symbol | |
344 | table to GDB's symbol-reading code. These `constants' | |
345 | unfortunately vary among coff implementations... */ | |
346 | pe->coff.local_n_btmask = N_BTMASK; | |
347 | pe->coff.local_n_btshft = N_BTSHFT; | |
348 | pe->coff.local_n_tmask = N_TMASK; | |
349 | pe->coff.local_n_tshift = N_TSHIFT; | |
350 | pe->coff.local_symesz = SYMESZ; | |
351 | pe->coff.local_auxesz = AUXESZ; | |
352 | pe->coff.local_linesz = LINESZ; | |
353 | ||
1135238b ILT |
354 | pe->coff.timestamp = internal_f->f_timdat; |
355 | ||
252b5132 RH |
356 | obj_raw_syment_count (abfd) = |
357 | obj_conv_table_size (abfd) = | |
358 | internal_f->f_nsyms; | |
359 | ||
360 | pe->real_flags = internal_f->f_flags; | |
361 | ||
362 | if ((internal_f->f_flags & F_DLL) != 0) | |
363 | pe->dll = 1; | |
364 | ||
4cfec37b ILT |
365 | if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) |
366 | abfd->flags |= HAS_DEBUG; | |
367 | ||
252b5132 | 368 | #ifdef COFF_IMAGE_WITH_PE |
ee91ed79 | 369 | if (aouthdr) |
252b5132 RH |
370 | pe->pe_opthdr = ((struct internal_aouthdr *)aouthdr)->pe; |
371 | #endif | |
372 | ||
ee91ed79 | 373 | #ifdef ARM |
252b5132 RH |
374 | if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) |
375 | coff_data (abfd) ->flags = 0; | |
376 | #endif | |
ee91ed79 | 377 | |
252b5132 RH |
378 | return (PTR) pe; |
379 | } | |
380 | ||
277d1b5e ILT |
381 | static boolean |
382 | pe_print_private_bfd_data (abfd, vfile) | |
383 | bfd *abfd; | |
384 | PTR vfile; | |
385 | { | |
386 | FILE *file = (FILE *) vfile; | |
387 | ||
388 | if (!_bfd_pe_print_private_bfd_data_common (abfd, vfile)) | |
389 | return false; | |
252b5132 | 390 | |
277d1b5e ILT |
391 | if (pe_saved_coff_bfd_print_private_bfd_data != NULL) |
392 | { | |
393 | fputc ('\n', file); | |
394 | ||
395 | return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile); | |
396 | } | |
397 | ||
398 | return true; | |
399 | } | |
252b5132 RH |
400 | |
401 | /* Copy any private info we understand from the input bfd | |
402 | to the output bfd. */ | |
403 | ||
252b5132 RH |
404 | static boolean |
405 | pe_bfd_copy_private_bfd_data (ibfd, obfd) | |
406 | bfd *ibfd, *obfd; | |
407 | { | |
277d1b5e ILT |
408 | if (!_bfd_pe_bfd_copy_private_bfd_data_common (ibfd, obfd)) |
409 | return false; | |
252b5132 RH |
410 | |
411 | if (pe_saved_coff_bfd_copy_private_bfd_data) | |
412 | return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd); | |
252b5132 RH |
413 | |
414 | return true; | |
415 | } | |
416 | ||
277d1b5e ILT |
417 | #define coff_bfd_copy_private_section_data \ |
418 | _bfd_pe_bfd_copy_private_section_data | |
7d2b58d6 ILT |
419 | |
420 | #define coff_get_symbol_info _bfd_pe_get_symbol_info | |
cb665cd3 | 421 | |
b1f10154 | 422 | #ifdef COFF_IMAGE_WITH_PE |
17505c5c NC |
423 | \f |
424 | /* Code to handle Microsoft's Image Library Format. | |
425 | Also known as LINK6 format. | |
ee91ed79 | 426 | Documentation about this format can be found at: |
17505c5c NC |
427 | |
428 | http://msdn.microsoft.com/library/specs/pecoff_section8.htm */ | |
429 | ||
430 | /* The following constants specify the sizes of the various data | |
431 | structures that we have to create in order to build a bfd describing | |
432 | an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6 | |
433 | and SIZEOF_IDATA7 below is to allow for the possibility that we might | |
434 | need a padding byte in order to ensure 16 bit alignment for the section's | |
435 | contents. | |
436 | ||
437 | The value for SIZEOF_ILF_STRINGS is computed as follows: | |
438 | ||
439 | There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters | |
11c8a8d1 | 440 | per symbol for their names (longest section name is .idata$x). |
17505c5c NC |
441 | |
442 | There will be two symbols for the imported value, one the symbol name | |
443 | and one with _imp__ prefixed. Allowing for the terminating nul's this | |
11c8a8d1 | 444 | is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll). |
17505c5c NC |
445 | |
446 | The strings in the string table must start STRING__SIZE_SIZE bytes into | |
447 | the table in order to for the string lookup code in coffgen/coffcode to | |
448 | work. */ | |
449 | #define NUM_ILF_RELOCS 8 | |
450 | #define NUM_ILF_SECTIONS 6 | |
451 | #define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS) | |
ee91ed79 | 452 | |
17505c5c NC |
453 | #define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache)) |
454 | #define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table)) | |
455 | #define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms)) | |
11c8a8d1 | 456 | #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table)) |
17505c5c NC |
457 | #define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table)) |
458 | #define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab)) | |
459 | #define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab)) | |
11c8a8d1 NC |
460 | #define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \ |
461 | + 21 + strlen (source_dll) \ | |
462 | + NUM_ILF_SECTIONS * 9 \ | |
463 | + STRING_SIZE_SIZE) | |
17505c5c NC |
464 | #define SIZEOF_IDATA2 (5 * 4) |
465 | #define SIZEOF_IDATA4 (1 * 4) | |
466 | #define SIZEOF_IDATA5 (1 * 4) | |
467 | #define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1) | |
468 | #define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1) | |
469 | #define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata)) | |
ee91ed79 | 470 | |
17505c5c NC |
471 | #define ILF_DATA_SIZE \ |
472 | sizeof (* vars.bim) \ | |
473 | + SIZEOF_ILF_SYMS \ | |
474 | + SIZEOF_ILF_SYM_TABLE \ | |
475 | + SIZEOF_ILF_NATIVE_SYMS \ | |
11c8a8d1 | 476 | + SIZEOF_ILF_SYM_PTR_TABLE \ |
17505c5c NC |
477 | + SIZEOF_ILF_EXT_SYMS \ |
478 | + SIZEOF_ILF_RELOCS \ | |
479 | + SIZEOF_ILF_INT_RELOCS \ | |
480 | + SIZEOF_ILF_STRINGS \ | |
481 | + SIZEOF_IDATA2 \ | |
482 | + SIZEOF_IDATA4 \ | |
483 | + SIZEOF_IDATA5 \ | |
484 | + SIZEOF_IDATA6 \ | |
485 | + SIZEOF_IDATA7 \ | |
486 | + SIZEOF_ILF_SECTIONS \ | |
487 | + MAX_TEXT_SECTION_SIZE | |
488 | ||
17505c5c NC |
489 | /* Create an empty relocation against the given symbol. */ |
490 | static void | |
11c8a8d1 NC |
491 | pe_ILF_make_a_symbol_reloc (pe_ILF_vars * vars, |
492 | bfd_vma address, | |
493 | bfd_reloc_code_real_type reloc, | |
494 | struct symbol_cache_entry ** sym, | |
495 | unsigned int sym_index) | |
17505c5c NC |
496 | { |
497 | arelent * entry; | |
498 | struct internal_reloc * internal; | |
499 | ||
500 | entry = vars->reltab + vars->relcount; | |
501 | internal = vars->int_reltab + vars->relcount; | |
ee91ed79 | 502 | |
17505c5c NC |
503 | entry->address = address; |
504 | entry->addend = 0; | |
505 | entry->howto = bfd_reloc_type_lookup (vars->abfd, reloc); | |
11c8a8d1 | 506 | entry->sym_ptr_ptr = sym; |
17505c5c NC |
507 | |
508 | internal->r_vaddr = address; | |
11c8a8d1 | 509 | internal->r_symndx = sym_index; |
17505c5c NC |
510 | internal->r_type = entry->howto->type; |
511 | #if 0 /* These fields do not need to be initialised. */ | |
512 | internal->r_size = 0; | |
513 | internal->r_extern = 0; | |
514 | internal->r_offset = 0; | |
515 | #endif | |
ee91ed79 | 516 | |
17505c5c | 517 | vars->relcount ++; |
ee91ed79 | 518 | |
17505c5c NC |
519 | BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS); |
520 | } | |
521 | ||
11c8a8d1 NC |
522 | /* Create an empty relocation against the given section. */ |
523 | static void | |
524 | pe_ILF_make_a_reloc (pe_ILF_vars * vars, | |
525 | bfd_vma address, | |
526 | bfd_reloc_code_real_type reloc, | |
527 | asection_ptr sec) | |
528 | { | |
529 | pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr, | |
530 | coff_section_data (vars->abfd, sec)->i); | |
531 | } | |
532 | ||
17505c5c NC |
533 | /* Move the queued relocs into the given section. */ |
534 | static void | |
535 | pe_ILF_save_relocs (pe_ILF_vars * vars, | |
536 | asection_ptr sec) | |
537 | { | |
538 | /* Make sure that there is somewhere to store the internal relocs. */ | |
539 | if (coff_section_data (vars->abfd, sec) == NULL) | |
540 | /* We should probably return an error indication here. */ | |
541 | abort (); | |
542 | ||
543 | coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab; | |
544 | coff_section_data (vars->abfd, sec)->keep_relocs = true; | |
545 | ||
546 | sec->relocation = vars->reltab; | |
547 | sec->reloc_count = vars->relcount; | |
548 | sec->flags |= SEC_RELOC; | |
549 | ||
550 | vars->reltab += vars->relcount; | |
551 | vars->int_reltab += vars->relcount; | |
552 | vars->relcount = 0; | |
553 | ||
554 | BFD_ASSERT ((bfd_byte *)vars->int_reltab < (bfd_byte *)vars->string_table); | |
555 | } | |
556 | ||
557 | /* Create a global symbol and add it to the relevant tables. */ | |
558 | static void | |
559 | pe_ILF_make_a_symbol (pe_ILF_vars * vars, | |
560 | const char * prefix, | |
561 | const char * symbol_name, | |
562 | asection_ptr section, | |
563 | flagword extra_flags) | |
564 | { | |
565 | coff_symbol_type * sym; | |
566 | combined_entry_type * ent; | |
567 | SYMENT * esym; | |
568 | unsigned short sclass; | |
569 | ||
570 | if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 571 | sclass = C_STAT; |
17505c5c NC |
572 | else |
573 | sclass = C_EXT; | |
ee91ed79 KH |
574 | |
575 | #ifdef THUMBPEMAGIC | |
17505c5c NC |
576 | if (vars->magic == THUMBPEMAGIC) |
577 | { | |
578 | if (extra_flags & BSF_FUNCTION) | |
579 | sclass = C_THUMBEXTFUNC; | |
580 | else if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 581 | sclass = C_THUMBSTAT; |
17505c5c NC |
582 | else |
583 | sclass = C_THUMBEXT; | |
584 | } | |
585 | #endif | |
586 | ||
587 | BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS); | |
ee91ed79 | 588 | |
17505c5c NC |
589 | sym = vars->sym_ptr; |
590 | ent = vars->native_ptr; | |
591 | esym = vars->esym_ptr; | |
592 | ||
593 | /* Copy the symbol's name into the string table. */ | |
594 | sprintf (vars->string_ptr, "%s%s", prefix, symbol_name); | |
595 | ||
10821322 NC |
596 | if (section == NULL) |
597 | section = (asection_ptr) & bfd_und_section; | |
ee91ed79 | 598 | |
17505c5c NC |
599 | /* Initialise the external symbol. */ |
600 | bfd_h_put_32 (vars->abfd, vars->string_ptr - vars->string_table, (bfd_byte *) esym->e.e.e_offset); | |
10821322 | 601 | bfd_h_put_16 (vars->abfd, section->target_index, (bfd_byte *) esym->e_scnum); |
17505c5c NC |
602 | esym->e_sclass[0] = sclass; |
603 | ||
604 | /* The following initialisations are unnecessary - the memory is | |
605 | zero initialised. They are just kept here as reminders. */ | |
606 | #if 0 | |
607 | esym->e.e.e_zeroes = 0; | |
608 | esym->e_value = 0; | |
609 | esym->e_type = T_NULL; | |
610 | esym->e_numaux = 0; | |
611 | #endif | |
ee91ed79 | 612 | |
17505c5c NC |
613 | /* Initialise the internal symbol structure. */ |
614 | ent->u.syment.n_sclass = sclass; | |
10821322 | 615 | ent->u.syment.n_scnum = section->target_index; |
17505c5c | 616 | ent->u.syment._n._n_n._n_offset = (long) sym; |
ee91ed79 | 617 | |
17505c5c NC |
618 | #if 0 /* See comment above. */ |
619 | ent->u.syment.n_value = 0; | |
620 | ent->u.syment.n_flags = 0; | |
621 | ent->u.syment.n_type = T_NULL; | |
622 | ent->u.syment.n_numaux = 0; | |
623 | ent->fix_value = 0; | |
624 | #endif | |
ee91ed79 | 625 | |
17505c5c NC |
626 | sym->symbol.the_bfd = vars->abfd; |
627 | sym->symbol.name = vars->string_ptr; | |
628 | sym->symbol.flags = BSF_EXPORT | BSF_GLOBAL | extra_flags; | |
629 | sym->symbol.section = section; | |
630 | sym->native = ent; | |
ee91ed79 | 631 | |
17505c5c NC |
632 | #if 0 /* See comment above. */ |
633 | sym->symbol.value = 0; | |
634 | sym->symbol.udata.i = 0; | |
635 | sym->done_lineno = false; | |
636 | sym->lineno = NULL; | |
637 | #endif | |
ee91ed79 | 638 | |
17505c5c | 639 | * vars->table_ptr = vars->sym_index; |
11c8a8d1 | 640 | * vars->sym_ptr_ptr = sym; |
ee91ed79 | 641 | |
17505c5c NC |
642 | /* Adjust pointers for the next symbol. */ |
643 | vars->sym_index ++; | |
644 | vars->sym_ptr ++; | |
11c8a8d1 | 645 | vars->sym_ptr_ptr ++; |
17505c5c NC |
646 | vars->table_ptr ++; |
647 | vars->native_ptr ++; | |
648 | vars->esym_ptr ++; | |
11c8a8d1 | 649 | vars->string_ptr += strlen (symbol_name) + strlen (prefix) + 1; |
17505c5c NC |
650 | |
651 | BFD_ASSERT (vars->string_ptr < vars->end_string_ptr); | |
652 | } | |
653 | ||
654 | /* Create a section. */ | |
655 | static asection_ptr | |
656 | pe_ILF_make_a_section (pe_ILF_vars * vars, | |
657 | const char * name, | |
658 | unsigned int size, | |
659 | flagword extra_flags) | |
660 | { | |
661 | asection_ptr sec; | |
662 | flagword flags; | |
ee91ed79 | 663 | |
17505c5c NC |
664 | sec = bfd_make_section_old_way (vars->abfd, name); |
665 | if (sec == NULL) | |
666 | return NULL; | |
ee91ed79 | 667 | |
17505c5c | 668 | flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY; |
ee91ed79 | 669 | |
17505c5c | 670 | bfd_set_section_flags (vars->abfd, sec, flags | extra_flags); |
ee91ed79 | 671 | |
17505c5c | 672 | bfd_set_section_alignment (vars->abfd, sec, 2); |
ee91ed79 | 673 | |
17505c5c NC |
674 | /* Check that we will not run out of space. */ |
675 | BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 676 | |
17505c5c NC |
677 | /* Set the section size and contents. The actual |
678 | contents are filled in by our parent. */ | |
679 | bfd_set_section_size (vars->abfd, sec, size); | |
680 | sec->contents = vars->data; | |
681 | sec->target_index = vars->sec_index ++; | |
682 | ||
683 | /* Advance data pointer in the vars structure. */ | |
684 | vars->data += size; | |
ee91ed79 | 685 | |
17505c5c NC |
686 | /* Skip the padding byte if it was not needed. |
687 | The logic here is that if the string length is odd, | |
688 | then the entire string length, including the null byte, | |
689 | is even and so the extra, padding byte, is not needed. */ | |
690 | if (size & 1) | |
691 | vars->data --; | |
ee91ed79 | 692 | |
17505c5c NC |
693 | /* Create a coff_section_tdata structure for our use. */ |
694 | sec->used_by_bfd = (struct coff_section_tdata *) vars->data; | |
695 | vars->data += sizeof (struct coff_section_tdata); | |
696 | ||
697 | BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 698 | |
17505c5c NC |
699 | /* Create a symbol to refer to this section. */ |
700 | pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL); | |
701 | ||
11c8a8d1 | 702 | /* Cache the index to the symbol in the coff_section_data structure. */ |
17505c5c | 703 | coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1; |
ee91ed79 | 704 | |
17505c5c NC |
705 | return sec; |
706 | } | |
707 | ||
708 | /* This structure contains the code that goes into the .text section | |
709 | in order to perform a jump into the DLL lookup table. The entries | |
710 | in the table are index by the magic number used to represent the | |
711 | machine type in the PE file. The contents of the data[] arrays in | |
712 | these entries are stolen from the jtab[] arrays in ld/pe-dll.c. | |
713 | The SIZE field says how many bytes in the DATA array are actually | |
714 | used. The OFFSET field says where in the data array the address | |
715 | of the .idata$5 section should be placed. */ | |
716 | #define MAX_TEXT_SECTION_SIZE 32 | |
717 | ||
718 | typedef struct | |
719 | { | |
720 | unsigned short magic; | |
721 | unsigned char data[MAX_TEXT_SECTION_SIZE]; | |
722 | unsigned int size; | |
723 | unsigned int offset; | |
724 | } | |
725 | jump_table; | |
726 | ||
86033394 | 727 | static jump_table jtab[] = |
17505c5c NC |
728 | { |
729 | #ifdef I386MAGIC | |
730 | { I386MAGIC, | |
731 | { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, | |
732 | 8, 2 | |
733 | }, | |
734 | #endif | |
ee91ed79 | 735 | |
17505c5c NC |
736 | #ifdef MC68MAGIC |
737 | { MC68MAGIC, { /* XXX fill me in */ }, 0, 0 }, | |
738 | #endif | |
739 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
740 | { MIPS_ARCH_MAGIC_WINCE, | |
741 | { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, | |
742 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 }, | |
743 | 16, 0 | |
744 | }, | |
745 | #endif | |
ee91ed79 | 746 | |
17505c5c NC |
747 | #ifdef SH_ARCH_MAGIC_WINCE |
748 | { SH_ARCH_MAGIC_WINCE, | |
749 | { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, | |
750 | 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 }, | |
751 | 12, 8 | |
752 | }, | |
753 | #endif | |
ee91ed79 | 754 | |
17505c5c NC |
755 | #ifdef ARMPEMAGIC |
756 | { ARMPEMAGIC, | |
757 | { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0, | |
758 | 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00}, | |
759 | 12, 8 | |
760 | }, | |
761 | #endif | |
ee91ed79 | 762 | |
17505c5c NC |
763 | #ifdef THUMBPEMAGIC |
764 | { THUMBPEMAGIC, | |
765 | { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46, | |
766 | 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 }, | |
767 | 16, 12 | |
768 | }, | |
769 | #endif | |
770 | { 0, { 0 }, 0, 0 } | |
771 | }; | |
772 | ||
773 | #ifndef NUM_ENTRIES | |
774 | #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0]) | |
775 | #endif | |
776 | ||
777 | /* Build a full BFD from the information supplied in a ILF object. */ | |
778 | static boolean | |
779 | pe_ILF_build_a_bfd (bfd * abfd, | |
780 | unsigned short magic, | |
781 | bfd_byte * symbol_name, | |
782 | bfd_byte * source_dll, | |
783 | unsigned int ordinal, | |
784 | unsigned int types) | |
ee91ed79 | 785 | { |
17505c5c NC |
786 | bfd_byte * ptr; |
787 | pe_ILF_vars vars; | |
788 | struct internal_filehdr internal_f; | |
789 | unsigned int import_type; | |
790 | unsigned int import_name_type; | |
11c8a8d1 NC |
791 | asection_ptr id4, id5, id6 = NULL, text = NULL; |
792 | coff_symbol_type ** imp_sym; | |
793 | unsigned int imp_index; | |
17505c5c | 794 | |
17505c5c NC |
795 | /* Decode and verify the types field of the ILF structure. */ |
796 | import_type = types & 0x3; | |
797 | import_name_type = (types & 0x1c) >> 2; | |
798 | ||
799 | switch (import_type) | |
800 | { | |
801 | case IMPORT_CODE: | |
802 | case IMPORT_DATA: | |
803 | break; | |
ee91ed79 | 804 | |
17505c5c NC |
805 | case IMPORT_CONST: |
806 | /* XXX code yet to be written. */ | |
807 | _bfd_error_handler (_("%s: Unhandled import type; %x"), | |
808 | bfd_get_filename (abfd), import_type); | |
809 | return false; | |
ee91ed79 | 810 | |
17505c5c NC |
811 | default: |
812 | _bfd_error_handler (_("%s: Unrecognised import type; %x"), | |
813 | bfd_get_filename (abfd), import_type); | |
814 | return false; | |
815 | } | |
816 | ||
817 | switch (import_name_type) | |
818 | { | |
819 | case IMPORT_ORDINAL: | |
820 | case IMPORT_NAME: | |
821 | case IMPORT_NAME_NOPREFIX: | |
822 | case IMPORT_NAME_UNDECORATE: | |
823 | break; | |
ee91ed79 | 824 | |
17505c5c NC |
825 | default: |
826 | _bfd_error_handler (_("%s: Unrecognised import name type; %x"), | |
827 | bfd_get_filename (abfd), import_name_type); | |
828 | return false; | |
829 | } | |
830 | ||
831 | /* Initialise local variables. | |
ee91ed79 | 832 | |
17505c5c NC |
833 | Note these are kept in a structure rather than being |
834 | declared as statics since bfd frowns on global variables. | |
ee91ed79 | 835 | |
17505c5c NC |
836 | We are going to construct the contents of the BFD in memory, |
837 | so allocate all the space that we will need right now. */ | |
838 | ptr = bfd_zalloc (abfd, ILF_DATA_SIZE); | |
839 | if (ptr == NULL) | |
840 | return false; | |
841 | ||
842 | /* Create a bfd_in_memory structure. */ | |
843 | vars.bim = (struct bfd_in_memory *) ptr; | |
844 | vars.bim->buffer = ptr; | |
845 | vars.bim->size = ILF_DATA_SIZE; | |
846 | ptr += sizeof (* vars.bim); | |
ee91ed79 | 847 | |
17505c5c NC |
848 | /* Initialise the pointers to regions of the memory and the |
849 | other contents of the pe_ILF_vars structure as well. */ | |
850 | vars.sym_cache = (coff_symbol_type *) ptr; | |
851 | vars.sym_ptr = (coff_symbol_type *) ptr; | |
852 | vars.sym_index = 0; | |
853 | ptr += SIZEOF_ILF_SYMS; | |
ee91ed79 | 854 | |
17505c5c NC |
855 | vars.sym_table = (unsigned int *) ptr; |
856 | vars.table_ptr = (unsigned int *) ptr; | |
857 | ptr += SIZEOF_ILF_SYM_TABLE; | |
858 | ||
859 | vars.native_syms = (combined_entry_type *) ptr; | |
860 | vars.native_ptr = (combined_entry_type *) ptr; | |
861 | ptr += SIZEOF_ILF_NATIVE_SYMS; | |
11c8a8d1 NC |
862 | |
863 | vars.sym_ptr_table = (coff_symbol_type **) ptr; | |
864 | vars.sym_ptr_ptr = (coff_symbol_type **) ptr; | |
865 | ptr += SIZEOF_ILF_SYM_PTR_TABLE; | |
ee91ed79 | 866 | |
17505c5c NC |
867 | vars.esym_table = (SYMENT *) ptr; |
868 | vars.esym_ptr = (SYMENT *) ptr; | |
869 | ptr += SIZEOF_ILF_EXT_SYMS; | |
ee91ed79 | 870 | |
17505c5c NC |
871 | vars.reltab = (arelent *) ptr; |
872 | vars.relcount = 0; | |
873 | ptr += SIZEOF_ILF_RELOCS; | |
874 | ||
875 | vars.int_reltab = (struct internal_reloc *) ptr; | |
876 | ptr += SIZEOF_ILF_INT_RELOCS; | |
877 | ||
878 | vars.string_table = ptr; | |
879 | vars.string_ptr = ptr + STRING_SIZE_SIZE; | |
880 | ptr += SIZEOF_ILF_STRINGS; | |
881 | vars.end_string_ptr = ptr; | |
ee91ed79 | 882 | |
17505c5c NC |
883 | /* The remaining space in bim->buffer is used |
884 | by the pe_ILF_make_a_section() function. */ | |
885 | vars.data = ptr; | |
886 | vars.abfd = abfd; | |
887 | vars.sec_index = 0; | |
888 | vars.magic = magic; | |
ee91ed79 | 889 | |
17505c5c | 890 | /* Create the initial .idata$<n> sections: |
11c8a8d1 | 891 | [.idata$2: Import Directory Table -- not needed] |
17505c5c NC |
892 | .idata$4: Import Lookup Table |
893 | .idata$5: Import Address Table | |
894 | ||
895 | Note we do not create a .idata$3 section as this is | |
896 | created for us by the linker script. */ | |
17505c5c NC |
897 | id4 = pe_ILF_make_a_section (& vars, ".idata$4", SIZEOF_IDATA4, 0); |
898 | id5 = pe_ILF_make_a_section (& vars, ".idata$5", SIZEOF_IDATA5, 0); | |
11c8a8d1 | 899 | if (id4 == NULL || id5 == NULL) |
17505c5c | 900 | return false; |
ee91ed79 | 901 | |
17505c5c NC |
902 | /* Fill in the contents of these sections. */ |
903 | if (import_name_type == IMPORT_ORDINAL) | |
904 | { | |
905 | if (ordinal == 0) | |
906 | /* XXX - treat as IMPORT_NAME ??? */ | |
907 | abort (); | |
ee91ed79 | 908 | |
fc633e5b AM |
909 | * (unsigned int *) id4->contents = ordinal | 0x80000000; |
910 | * (unsigned int *) id5->contents = ordinal | 0x80000000; | |
17505c5c NC |
911 | } |
912 | else | |
913 | { | |
914 | char * symbol; | |
ee91ed79 | 915 | |
17505c5c NC |
916 | /* Create .idata$6 - the Hint Name Table. */ |
917 | id6 = pe_ILF_make_a_section (& vars, ".idata$6", SIZEOF_IDATA6, 0); | |
918 | if (id6 == NULL) | |
919 | return false; | |
920 | ||
921 | /* If necessary, trim the import symbol name. */ | |
922 | symbol = symbol_name; | |
923 | ||
924 | if (import_name_type != IMPORT_NAME) | |
925 | /* Skip any prefix in symbol_name. */ | |
926 | while (*symbol == '@' || * symbol == '?' || * symbol == '_') | |
927 | ++ symbol; | |
928 | ||
929 | if (import_name_type == IMPORT_NAME_UNDECORATE) | |
930 | { | |
931 | /* Truncate at the first '@' */ | |
932 | while (* symbol != 0 && * symbol != '@') | |
933 | symbol ++; | |
934 | ||
935 | * symbol = 0; | |
936 | } | |
ee91ed79 | 937 | |
11c8a8d1 NC |
938 | id6->contents[0] = ordinal & 0xff; |
939 | id6->contents[1] = ordinal >> 8; | |
ee91ed79 | 940 | |
11c8a8d1 | 941 | strcpy (id6->contents + 2, symbol); |
17505c5c NC |
942 | } |
943 | ||
17505c5c NC |
944 | if (import_name_type != IMPORT_ORDINAL) |
945 | { | |
946 | pe_ILF_make_a_reloc (& vars, 0, BFD_RELOC_RVA, id6); | |
947 | pe_ILF_save_relocs (& vars, id4); | |
ee91ed79 | 948 | |
17505c5c NC |
949 | pe_ILF_make_a_reloc (& vars, 0, BFD_RELOC_RVA, id6); |
950 | pe_ILF_save_relocs (& vars, id5); | |
951 | } | |
952 | ||
953 | /* Create extra sections depending upon the type of import we are dealing with. */ | |
954 | switch (import_type) | |
955 | { | |
956 | int i; | |
ee91ed79 | 957 | |
17505c5c NC |
958 | case IMPORT_CODE: |
959 | /* Create a .text section. | |
960 | First we need to look up its contents in the jump table. */ | |
961 | for (i = NUM_ENTRIES (jtab); i--;) | |
962 | { | |
963 | if (jtab[i].size == 0) | |
964 | continue; | |
965 | if (jtab[i].magic == magic) | |
966 | break; | |
967 | } | |
968 | /* If we did not find a matching entry something is wrong. */ | |
969 | if (i < 0) | |
970 | abort (); | |
971 | ||
972 | /* Create the .text section. */ | |
973 | text = pe_ILF_make_a_section (& vars, ".text", jtab[i].size, SEC_CODE); | |
974 | if (text == NULL) | |
975 | return false; | |
976 | ||
977 | /* Copy in the jump code. */ | |
978 | memcpy (text->contents, jtab[i].data, jtab[i].size); | |
979 | ||
11c8a8d1 NC |
980 | /* Create an import symbol. */ |
981 | pe_ILF_make_a_symbol (& vars, "__imp_", symbol_name, id5, 0); | |
982 | imp_sym = vars.sym_ptr_ptr - 1; | |
983 | imp_index = vars.sym_index - 1; | |
ee91ed79 | 984 | |
17505c5c | 985 | /* Create a reloc for the data in the text section. */ |
ee91ed79 | 986 | #ifdef MIPS_ARCH_MAGIC_WINCE |
17505c5c NC |
987 | if (magic == MIPS_ARCH_MAGIC_WINCE) |
988 | { | |
11c8a8d1 | 989 | pe_ILF_make_a_symbol_reloc (& vars, 0, BFD_RELOC_HI16_S, |
23ccc829 | 990 | (struct symbol_cache_entry **) imp_sym, imp_index); |
17505c5c | 991 | pe_ILF_make_a_reloc (& vars, 0, BFD_RELOC_LO16, text); |
11c8a8d1 | 992 | pe_ILF_make_a_symbol_reloc (& vars, 4, BFD_RELOC_LO16, |
23ccc829 | 993 | (struct symbol_cache_entry **) imp_sym, imp_index); |
17505c5c NC |
994 | } |
995 | else | |
996 | #endif | |
11c8a8d1 NC |
997 | pe_ILF_make_a_symbol_reloc (& vars, jtab[i].offset, BFD_RELOC_32, |
998 | (asymbol **) imp_sym, imp_index); | |
ee91ed79 | 999 | |
17505c5c NC |
1000 | pe_ILF_save_relocs (& vars, text); |
1001 | break; | |
1002 | ||
1003 | case IMPORT_DATA: | |
1004 | break; | |
1005 | ||
1006 | default: | |
1007 | /* XXX code not yet written. */ | |
1008 | abort (); | |
1009 | } | |
ee91ed79 | 1010 | |
17505c5c NC |
1011 | /* Initialise the bfd. */ |
1012 | memset (& internal_f, 0, sizeof (internal_f)); | |
ee91ed79 | 1013 | |
17505c5c NC |
1014 | internal_f.f_magic = magic; |
1015 | internal_f.f_symptr = 0; | |
1016 | internal_f.f_nsyms = 0; | |
1017 | internal_f.f_flags = F_AR32WR | F_LNNO; /* XXX is this correct ? */ | |
ee91ed79 | 1018 | |
17505c5c NC |
1019 | if ( ! bfd_set_start_address (abfd, 0) |
1020 | || ! bfd_coff_set_arch_mach_hook (abfd, & internal_f)) | |
1021 | return false; | |
1022 | ||
1023 | if (bfd_coff_mkobject_hook (abfd, (PTR) & internal_f, NULL) == NULL) | |
1024 | return false; | |
1025 | ||
1026 | coff_data (abfd)->pe = 1; | |
ee91ed79 | 1027 | #ifdef THUMBPEMAGIC |
17505c5c NC |
1028 | if (vars.magic == THUMBPEMAGIC) |
1029 | /* Stop some linker warnings about thumb code not supporting interworking. */ | |
1030 | coff_data (abfd)->flags |= F_INTERWORK | F_INTERWORK_SET; | |
1031 | #endif | |
ee91ed79 | 1032 | |
17505c5c NC |
1033 | /* Switch from file contents to memory contents. */ |
1034 | bfd_cache_close (abfd); | |
1035 | ||
1036 | abfd->iostream = (PTR) vars.bim; | |
1037 | abfd->flags |= BFD_IN_MEMORY /* | HAS_LOCALS */; | |
1038 | abfd->where = 0; | |
1039 | obj_sym_filepos (abfd) = 0; | |
1040 | ||
1041 | /* Now create a symbol describing the imported value. */ | |
1042 | switch (import_type) | |
1043 | { | |
11c8a8d1 | 1044 | bfd_byte * ptr; |
ee91ed79 | 1045 | |
17505c5c NC |
1046 | case IMPORT_CODE: |
1047 | pe_ILF_make_a_symbol (& vars, "", symbol_name, text, | |
1048 | BSF_NOT_AT_END | BSF_FUNCTION); | |
ee91ed79 | 1049 | |
11c8a8d1 NC |
1050 | /* Create an import symbol for the DLL, without the |
1051 | .dll suffix. */ | |
1052 | ptr = strrchr (source_dll, '.'); | |
1053 | if (ptr) | |
1054 | * ptr = 0; | |
1055 | pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0); | |
1056 | if (ptr) | |
1057 | * ptr = '.'; | |
17505c5c NC |
1058 | break; |
1059 | ||
1060 | case IMPORT_DATA: | |
11c8a8d1 | 1061 | /* Nothing to do here. */ |
17505c5c | 1062 | break; |
ee91ed79 | 1063 | |
17505c5c NC |
1064 | default: |
1065 | /* XXX code not yet written. */ | |
1066 | abort (); | |
1067 | } | |
1068 | ||
17505c5c NC |
1069 | /* Point the bfd at the symbol table. */ |
1070 | obj_symbols (abfd) = vars.sym_cache; | |
1071 | bfd_get_symcount (abfd) = vars.sym_index; | |
ee91ed79 | 1072 | |
17505c5c NC |
1073 | obj_raw_syments (abfd) = vars.native_syms; |
1074 | obj_raw_syment_count (abfd) = vars.sym_index; | |
1075 | ||
1076 | obj_coff_external_syms (abfd) = (PTR) vars.esym_table; | |
1077 | obj_coff_keep_syms (abfd) = true; | |
ee91ed79 | 1078 | |
17505c5c NC |
1079 | obj_convert (abfd) = vars.sym_table; |
1080 | obj_conv_table_size (abfd) = vars.sym_index; | |
ee91ed79 | 1081 | |
17505c5c NC |
1082 | obj_coff_strings (abfd) = vars.string_table; |
1083 | obj_coff_keep_strings (abfd) = true; | |
1084 | ||
1085 | abfd->flags |= HAS_SYMS; | |
1086 | ||
1087 | return true; | |
1088 | } | |
1089 | ||
1090 | /* We have detected a Image Library Format archive element. | |
1091 | Decode the element and return the appropriate target. */ | |
cb665cd3 | 1092 | static const bfd_target * |
17505c5c NC |
1093 | pe_ILF_object_p (bfd * abfd) |
1094 | { | |
1095 | bfd_byte buffer[16]; | |
1096 | bfd_byte * ptr; | |
1097 | bfd_byte * symbol_name; | |
1098 | bfd_byte * source_dll; | |
1099 | unsigned int machine; | |
1100 | unsigned long size; | |
1101 | unsigned int ordinal; | |
1102 | unsigned int types; | |
1103 | unsigned short magic; | |
ee91ed79 | 1104 | |
17505c5c NC |
1105 | /* Upon entry the first four buyes of the ILF header have |
1106 | already been read. Now read the rest of the header. */ | |
1107 | if (bfd_read (buffer, 1, 16, abfd) != 16) | |
1108 | return NULL; | |
1109 | ||
1110 | ptr = buffer; | |
ee91ed79 | 1111 | |
17505c5c NC |
1112 | /* We do not bother to check the version number. |
1113 | version = bfd_h_get_16 (abfd, ptr); */ | |
1114 | ptr += 2; | |
1115 | ||
1116 | machine = bfd_h_get_16 (abfd, ptr); | |
1117 | ptr += 2; | |
1118 | ||
1119 | /* Check that the machine type is recognised. */ | |
1120 | magic = 0; | |
ee91ed79 | 1121 | |
17505c5c NC |
1122 | switch (machine) |
1123 | { | |
1124 | case IMAGE_FILE_MACHINE_UNKNOWN: | |
1125 | case IMAGE_FILE_MACHINE_ALPHA: | |
1126 | case IMAGE_FILE_MACHINE_ALPHA64: | |
1127 | case IMAGE_FILE_MACHINE_IA64: | |
1128 | break; | |
ee91ed79 | 1129 | |
17505c5c NC |
1130 | case IMAGE_FILE_MACHINE_I386: |
1131 | #ifdef I386MAGIC | |
1132 | magic = I386MAGIC; | |
1133 | #endif | |
1134 | break; | |
ee91ed79 | 1135 | |
17505c5c NC |
1136 | case IMAGE_FILE_MACHINE_M68K: |
1137 | #ifdef MC68AGIC | |
1138 | magic = MC68MAGIC; | |
1139 | #endif | |
1140 | break; | |
ee91ed79 | 1141 | |
17505c5c NC |
1142 | case IMAGE_FILE_MACHINE_R3000: |
1143 | case IMAGE_FILE_MACHINE_R4000: | |
1144 | case IMAGE_FILE_MACHINE_R10000: | |
ee91ed79 | 1145 | |
17505c5c NC |
1146 | case IMAGE_FILE_MACHINE_MIPS16: |
1147 | case IMAGE_FILE_MACHINE_MIPSFPU: | |
1148 | case IMAGE_FILE_MACHINE_MIPSFPU16: | |
1149 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
1150 | magic = MIPS_ARCH_MAGIC_WINCE; | |
1151 | #endif | |
1152 | break; | |
ee91ed79 | 1153 | |
17505c5c NC |
1154 | case IMAGE_FILE_MACHINE_SH3: |
1155 | case IMAGE_FILE_MACHINE_SH4: | |
1156 | #ifdef SH_ARCH_MAGIC_WINCE | |
1157 | magic = SH_ARCH_MAGIC_WINCE; | |
1158 | #endif | |
1159 | break; | |
ee91ed79 | 1160 | |
17505c5c NC |
1161 | case IMAGE_FILE_MACHINE_ARM: |
1162 | #ifdef ARMPEMAGIC | |
1163 | magic = ARMPEMAGIC; | |
ee91ed79 | 1164 | #endif |
17505c5c | 1165 | break; |
ee91ed79 | 1166 | |
17505c5c NC |
1167 | case IMAGE_FILE_MACHINE_THUMB: |
1168 | #ifdef THUMBPEMAGIC | |
1169 | { | |
23ccc829 | 1170 | extern const bfd_target TARGET_LITTLE_SYM; |
ee91ed79 | 1171 | |
26bfd1c0 | 1172 | if (abfd->xvec == & TARGET_LITTLE_SYM) |
17505c5c NC |
1173 | magic = THUMBPEMAGIC; |
1174 | } | |
ee91ed79 | 1175 | #endif |
17505c5c | 1176 | break; |
ee91ed79 | 1177 | |
17505c5c NC |
1178 | case IMAGE_FILE_MACHINE_POWERPC: |
1179 | /* We no longer support PowerPC. */ | |
1180 | default: | |
1181 | _bfd_error_handler | |
1182 | ( | |
1183 | _("%s: Unrecognised machine type (0x%x) in Import Library Format archive"), | |
1184 | bfd_get_filename (abfd), machine); | |
1185 | bfd_set_error (bfd_error_malformed_archive); | |
ee91ed79 | 1186 | |
17505c5c NC |
1187 | return NULL; |
1188 | break; | |
1189 | } | |
1190 | ||
1191 | if (magic == 0) | |
1192 | { | |
1193 | _bfd_error_handler | |
1194 | ( | |
1195 | _("%s: Recognised but unhandled machine type (0x%x) in Import Library Format archive"), | |
1196 | bfd_get_filename (abfd), machine); | |
1197 | bfd_set_error (bfd_error_wrong_format); | |
ee91ed79 | 1198 | |
17505c5c | 1199 | return NULL; |
ee91ed79 | 1200 | } |
17505c5c NC |
1201 | |
1202 | /* We do not bother to check the date. | |
1203 | date = bfd_h_get_32 (abfd, ptr); */ | |
1204 | ptr += 4; | |
ee91ed79 | 1205 | |
17505c5c NC |
1206 | size = bfd_h_get_32 (abfd, ptr); |
1207 | ptr += 4; | |
1208 | ||
1209 | if (size == 0) | |
1210 | { | |
1211 | _bfd_error_handler | |
1212 | (_("%s: size field is zero in Import Library Format header"), | |
1213 | bfd_get_filename (abfd)); | |
1214 | bfd_set_error (bfd_error_malformed_archive); | |
ee91ed79 | 1215 | |
17505c5c NC |
1216 | return NULL; |
1217 | } | |
1218 | ||
1219 | ordinal = bfd_h_get_16 (abfd, ptr); | |
1220 | ptr += 2; | |
1221 | ||
1222 | types = bfd_h_get_16 (abfd, ptr); | |
1223 | /* ptr += 2; */ | |
1224 | ||
1225 | /* Now read in the two strings that follow. */ | |
1226 | ptr = bfd_alloc (abfd, size); | |
1227 | if (ptr == NULL) | |
1228 | return NULL; | |
ee91ed79 | 1229 | |
17505c5c NC |
1230 | if (bfd_read (ptr, 1, size, abfd) != size) |
1231 | return NULL; | |
1232 | ||
1233 | symbol_name = ptr; | |
1234 | source_dll = ptr + strlen (ptr) + 1; | |
ee91ed79 | 1235 | |
17505c5c | 1236 | /* Verify that the strings are null terminated. */ |
11c8a8d1 | 1237 | if (ptr[size - 1] != 0 || ((unsigned long) (source_dll - ptr) >= size)) |
17505c5c NC |
1238 | { |
1239 | _bfd_error_handler | |
1240 | (_("%s: string not null terminated in ILF object file."), | |
1241 | bfd_get_filename (abfd)); | |
1242 | bfd_set_error (bfd_error_malformed_archive); | |
ee91ed79 | 1243 | |
17505c5c NC |
1244 | return NULL; |
1245 | } | |
ee91ed79 | 1246 | |
17505c5c NC |
1247 | /* Now construct the bfd. */ |
1248 | if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name, | |
1249 | source_dll, ordinal, types)) | |
1250 | return NULL; | |
ee91ed79 | 1251 | |
17505c5c NC |
1252 | return abfd->xvec; |
1253 | } | |
1254 | ||
1255 | static const bfd_target * | |
1256 | pe_bfd_object_p (bfd * abfd) | |
cb665cd3 NC |
1257 | { |
1258 | /* We need to handle a PE image correctly. In PE images created by | |
1259 | the GNU linker, the offset to the COFF header is always the size. | |
1260 | However, this is not the case in images generated by other PE | |
1261 | linkers. The PE format stores a four byte offset to the PE | |
1262 | signature just before the COFF header at location 0x3c of the file. | |
1263 | We pick up that offset, verify that the PE signature is there, and | |
1264 | then set ourselves up to read in the COFF header. */ | |
1265 | bfd_byte buffer[4]; | |
1266 | file_ptr offset; | |
1267 | unsigned long signature; | |
1268 | ||
1269 | /* Detect if this a Microsoft Import Library Format element. */ | |
1270 | if (bfd_seek (abfd, 0x00, SEEK_SET) != 0 | |
1271 | || bfd_read (buffer, 1, 4, abfd) != 4) | |
1272 | { | |
1273 | if (bfd_get_error () != bfd_error_system_call) | |
1274 | bfd_set_error (bfd_error_wrong_format); | |
1275 | return NULL; | |
1276 | } | |
ee91ed79 | 1277 | |
cb665cd3 | 1278 | signature = bfd_h_get_32 (abfd, buffer); |
ee91ed79 | 1279 | |
cb665cd3 | 1280 | if (signature == 0xffff0000) |
17505c5c | 1281 | return pe_ILF_object_p (abfd); |
ee91ed79 | 1282 | |
cb665cd3 NC |
1283 | if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0 |
1284 | || bfd_read (buffer, 1, 4, abfd) != 4) | |
1285 | { | |
1286 | if (bfd_get_error () != bfd_error_system_call) | |
1287 | bfd_set_error (bfd_error_wrong_format); | |
1288 | return NULL; | |
1289 | } | |
1290 | ||
1291 | offset = bfd_h_get_32 (abfd, buffer); | |
1292 | ||
1293 | if (bfd_seek (abfd, offset, SEEK_SET) != 0 | |
1294 | || bfd_read (buffer, 1, 4, abfd) != 4) | |
1295 | { | |
1296 | if (bfd_get_error () != bfd_error_system_call) | |
1297 | bfd_set_error (bfd_error_wrong_format); | |
1298 | return NULL; | |
1299 | } | |
1300 | ||
1301 | signature = bfd_h_get_32 (abfd, buffer); | |
1302 | ||
1303 | if (signature != 0x4550) | |
1304 | { | |
1305 | bfd_set_error (bfd_error_wrong_format); | |
1306 | return NULL; | |
1307 | } | |
ee91ed79 | 1308 | |
cb665cd3 NC |
1309 | /* Here is the hack. coff_object_p wants to read filhsz bytes to |
1310 | pick up the COFF header. We adjust so that that will work. 20 | |
1311 | is the size of the i386 COFF filehdr. */ | |
1312 | if (bfd_seek (abfd, | |
1313 | (bfd_tell (abfd) | |
1314 | - bfd_coff_filhsz (abfd) | |
1315 | + 20), | |
1316 | SEEK_SET) | |
1317 | != 0) | |
1318 | { | |
1319 | if (bfd_get_error () != bfd_error_system_call) | |
1320 | bfd_set_error (bfd_error_wrong_format); | |
1321 | return NULL; | |
1322 | } | |
1323 | ||
1324 | return coff_object_p (abfd); | |
1325 | } | |
1326 | ||
1327 | #define coff_object_p pe_bfd_object_p | |
17505c5c | 1328 | #endif /* COFF_IMAGE_WITH_PE */ |