Commit | Line | Data |
---|---|---|
277d1b5e | 1 | /* Support for the generic parts of PE/PEI, for BFD. |
f075ee0c AM |
2 | Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
3 | 2005 Free Software Foundation, Inc. | |
277d1b5e | 4 | Written by Cygnus Solutions. |
252b5132 | 5 | |
ff0c9faf | 6 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 7 | |
ff0c9faf NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
252b5132 | 12 | |
ff0c9faf NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
252b5132 | 17 | |
ff0c9faf NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
252b5132 | 21 | |
ff0c9faf | 22 | /* Most of this hacked by Steve Chamberlain, |
252b5132 | 23 | sac@cygnus.com |
277d1b5e | 24 | |
ff0c9faf NC |
25 | PE/PEI rearrangement (and code added): Donn Terry |
26 | Softway Systems, Inc. */ | |
252b5132 RH |
27 | |
28 | /* Hey look, some documentation [and in a place you expect to find it]! | |
29 | ||
30 | The main reference for the pei format is "Microsoft Portable Executable | |
31 | and Common Object File Format Specification 4.1". Get it if you need to | |
32 | do some serious hacking on this code. | |
33 | ||
34 | Another reference: | |
35 | "Peering Inside the PE: A Tour of the Win32 Portable Executable | |
36 | File Format", MSJ 1994, Volume 9. | |
37 | ||
38 | The *sole* difference between the pe format and the pei format is that the | |
39 | latter has an MSDOS 2.0 .exe header on the front that prints the message | |
40 | "This app must be run under Windows." (or some such). | |
41 | (FIXME: Whether that statement is *really* true or not is unknown. | |
42 | Are there more subtle differences between pe and pei formats? | |
43 | For now assume there aren't. If you find one, then for God sakes | |
44 | document it here!) | |
45 | ||
46 | The Microsoft docs use the word "image" instead of "executable" because | |
47 | the former can also refer to a DLL (shared library). Confusion can arise | |
48 | because the `i' in `pei' also refers to "image". The `pe' format can | |
49 | also create images (i.e. executables), it's just that to run on a win32 | |
50 | system you need to use the pei format. | |
51 | ||
52 | FIXME: Please add more docs here so the next poor fool that has to hack | |
53 | on this code has a chance of getting something accomplished without | |
ff0c9faf | 54 | wasting too much time. */ |
252b5132 | 55 | |
277d1b5e ILT |
56 | #include "libpei.h" |
57 | ||
b34976b6 | 58 | static bfd_boolean (*pe_saved_coff_bfd_print_private_bfd_data) |
277d1b5e ILT |
59 | PARAMS ((bfd *, PTR)) = |
60 | #ifndef coff_bfd_print_private_bfd_data | |
61 | NULL; | |
252b5132 | 62 | #else |
277d1b5e ILT |
63 | coff_bfd_print_private_bfd_data; |
64 | #undef coff_bfd_print_private_bfd_data | |
252b5132 RH |
65 | #endif |
66 | ||
b34976b6 | 67 | static bfd_boolean pe_print_private_bfd_data PARAMS ((bfd *, PTR)); |
277d1b5e | 68 | #define coff_bfd_print_private_bfd_data pe_print_private_bfd_data |
252b5132 | 69 | |
b34976b6 | 70 | static bfd_boolean (*pe_saved_coff_bfd_copy_private_bfd_data) |
277d1b5e ILT |
71 | PARAMS ((bfd *, bfd *)) = |
72 | #ifndef coff_bfd_copy_private_bfd_data | |
73 | NULL; | |
74 | #else | |
75 | coff_bfd_copy_private_bfd_data; | |
76 | #undef coff_bfd_copy_private_bfd_data | |
252b5132 RH |
77 | #endif |
78 | ||
b34976b6 | 79 | static bfd_boolean pe_bfd_copy_private_bfd_data PARAMS ((bfd *, bfd *)); |
277d1b5e | 80 | #define coff_bfd_copy_private_bfd_data pe_bfd_copy_private_bfd_data |
252b5132 | 81 | |
277d1b5e ILT |
82 | #define coff_mkobject pe_mkobject |
83 | #define coff_mkobject_hook pe_mkobject_hook | |
252b5132 | 84 | |
17505c5c | 85 | #ifndef NO_COFF_RELOCS |
252b5132 RH |
86 | static void coff_swap_reloc_in PARAMS ((bfd *, PTR, PTR)); |
87 | static unsigned int coff_swap_reloc_out PARAMS ((bfd *, PTR, PTR)); | |
17505c5c | 88 | #endif |
252b5132 | 89 | static void coff_swap_filehdr_in PARAMS ((bfd *, PTR, PTR)); |
252b5132 | 90 | static void coff_swap_scnhdr_in PARAMS ((bfd *, PTR, PTR)); |
b34976b6 | 91 | static bfd_boolean pe_mkobject PARAMS ((bfd *)); |
252b5132 | 92 | static PTR pe_mkobject_hook PARAMS ((bfd *, PTR, PTR)); |
252b5132 | 93 | |
17505c5c NC |
94 | #ifdef COFF_IMAGE_WITH_PE |
95 | /* This structure contains static variables used by the ILF code. */ | |
96 | typedef asection * asection_ptr; | |
97 | ||
98 | typedef struct | |
99 | { | |
100 | bfd * abfd; | |
101 | bfd_byte * data; | |
102 | struct bfd_in_memory * bim; | |
103 | unsigned short magic; | |
ee91ed79 | 104 | |
17505c5c NC |
105 | arelent * reltab; |
106 | unsigned int relcount; | |
107 | ||
108 | coff_symbol_type * sym_cache; | |
109 | coff_symbol_type * sym_ptr; | |
110 | unsigned int sym_index; | |
ee91ed79 | 111 | |
17505c5c NC |
112 | unsigned int * sym_table; |
113 | unsigned int * table_ptr; | |
ee91ed79 | 114 | |
17505c5c NC |
115 | combined_entry_type * native_syms; |
116 | combined_entry_type * native_ptr; | |
117 | ||
11c8a8d1 NC |
118 | coff_symbol_type ** sym_ptr_table; |
119 | coff_symbol_type ** sym_ptr_ptr; | |
ee91ed79 | 120 | |
17505c5c NC |
121 | unsigned int sec_index; |
122 | ||
123 | char * string_table; | |
124 | char * string_ptr; | |
125 | char * end_string_ptr; | |
ee91ed79 | 126 | |
17505c5c NC |
127 | SYMENT * esym_table; |
128 | SYMENT * esym_ptr; | |
129 | ||
130 | struct internal_reloc * int_reltab; | |
131 | } | |
132 | pe_ILF_vars; | |
17505c5c NC |
133 | #endif /* COFF_IMAGE_WITH_PE */ |
134 | ||
252b5132 RH |
135 | /**********************************************************************/ |
136 | ||
17505c5c | 137 | #ifndef NO_COFF_RELOCS |
252b5132 RH |
138 | static void |
139 | coff_swap_reloc_in (abfd, src, dst) | |
140 | bfd *abfd; | |
141 | PTR src; | |
142 | PTR dst; | |
143 | { | |
144 | RELOC *reloc_src = (RELOC *) src; | |
145 | struct internal_reloc *reloc_dst = (struct internal_reloc *) dst; | |
146 | ||
dc810e39 AM |
147 | reloc_dst->r_vaddr = H_GET_32 (abfd, reloc_src->r_vaddr); |
148 | reloc_dst->r_symndx = H_GET_S32 (abfd, reloc_src->r_symndx); | |
252b5132 | 149 | |
dc810e39 | 150 | reloc_dst->r_type = H_GET_16 (abfd, reloc_src->r_type); |
252b5132 RH |
151 | |
152 | #ifdef SWAP_IN_RELOC_OFFSET | |
dc810e39 | 153 | reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET (abfd, reloc_src->r_offset); |
252b5132 RH |
154 | #endif |
155 | } | |
156 | ||
252b5132 RH |
157 | static unsigned int |
158 | coff_swap_reloc_out (abfd, src, dst) | |
159 | bfd *abfd; | |
160 | PTR src; | |
161 | PTR dst; | |
162 | { | |
163 | struct internal_reloc *reloc_src = (struct internal_reloc *)src; | |
164 | struct external_reloc *reloc_dst = (struct external_reloc *)dst; | |
dc810e39 AM |
165 | H_PUT_32 (abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr); |
166 | H_PUT_32 (abfd, reloc_src->r_symndx, reloc_dst->r_symndx); | |
252b5132 | 167 | |
dc810e39 | 168 | H_PUT_16 (abfd, reloc_src->r_type, reloc_dst->r_type); |
252b5132 RH |
169 | |
170 | #ifdef SWAP_OUT_RELOC_OFFSET | |
dc810e39 | 171 | SWAP_OUT_RELOC_OFFSET (abfd, reloc_src->r_offset, reloc_dst->r_offset); |
252b5132 RH |
172 | #endif |
173 | #ifdef SWAP_OUT_RELOC_EXTRA | |
dc810e39 | 174 | SWAP_OUT_RELOC_EXTRA(abfd, reloc_src, reloc_dst); |
252b5132 RH |
175 | #endif |
176 | return RELSZ; | |
177 | } | |
17505c5c | 178 | #endif /* not NO_COFF_RELOCS */ |
252b5132 RH |
179 | |
180 | static void | |
181 | coff_swap_filehdr_in (abfd, src, dst) | |
182 | bfd *abfd; | |
183 | PTR src; | |
184 | PTR dst; | |
185 | { | |
186 | FILHDR *filehdr_src = (FILHDR *) src; | |
187 | struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst; | |
dc810e39 AM |
188 | filehdr_dst->f_magic = H_GET_16 (abfd, filehdr_src->f_magic); |
189 | filehdr_dst->f_nscns = H_GET_16 (abfd, filehdr_src-> f_nscns); | |
190 | filehdr_dst->f_timdat = H_GET_32 (abfd, filehdr_src-> f_timdat); | |
252b5132 | 191 | |
dc810e39 AM |
192 | filehdr_dst->f_nsyms = H_GET_32 (abfd, filehdr_src-> f_nsyms); |
193 | filehdr_dst->f_flags = H_GET_16 (abfd, filehdr_src-> f_flags); | |
194 | filehdr_dst->f_symptr = H_GET_32 (abfd, filehdr_src->f_symptr); | |
252b5132 RH |
195 | |
196 | /* Other people's tools sometimes generate headers with an nsyms but | |
197 | a zero symptr. */ | |
198 | if (filehdr_dst->f_nsyms != 0 && filehdr_dst->f_symptr == 0) | |
199 | { | |
200 | filehdr_dst->f_nsyms = 0; | |
201 | filehdr_dst->f_flags |= F_LSYMS; | |
202 | } | |
203 | ||
dc810e39 | 204 | filehdr_dst->f_opthdr = H_GET_16 (abfd, filehdr_src-> f_opthdr); |
252b5132 RH |
205 | } |
206 | ||
207 | #ifdef COFF_IMAGE_WITH_PE | |
cbff5e0d | 208 | # define coff_swap_filehdr_out _bfd_XXi_only_swap_filehdr_out |
252b5132 | 209 | #else |
cbff5e0d | 210 | # define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out |
252b5132 | 211 | #endif |
252b5132 | 212 | |
252b5132 | 213 | static void |
e166a60f ILT |
214 | coff_swap_scnhdr_in (abfd, ext, in) |
215 | bfd *abfd; | |
216 | PTR ext; | |
217 | PTR in; | |
252b5132 RH |
218 | { |
219 | SCNHDR *scnhdr_ext = (SCNHDR *) ext; | |
220 | struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in; | |
221 | ||
ee91ed79 | 222 | memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof (scnhdr_int->s_name)); |
dc810e39 AM |
223 | scnhdr_int->s_vaddr = GET_SCNHDR_VADDR (abfd, scnhdr_ext->s_vaddr); |
224 | scnhdr_int->s_paddr = GET_SCNHDR_PADDR (abfd, scnhdr_ext->s_paddr); | |
225 | scnhdr_int->s_size = GET_SCNHDR_SIZE (abfd, scnhdr_ext->s_size); | |
226 | scnhdr_int->s_scnptr = GET_SCNHDR_SCNPTR (abfd, scnhdr_ext->s_scnptr); | |
227 | scnhdr_int->s_relptr = GET_SCNHDR_RELPTR (abfd, scnhdr_ext->s_relptr); | |
228 | scnhdr_int->s_lnnoptr = GET_SCNHDR_LNNOPTR (abfd, scnhdr_ext->s_lnnoptr); | |
229 | scnhdr_int->s_flags = H_GET_32 (abfd, scnhdr_ext->s_flags); | |
252b5132 | 230 | |
cb43721d ILT |
231 | /* MS handles overflow of line numbers by carrying into the reloc |
232 | field (it appears). Since it's supposed to be zero for PE | |
233 | *IMAGE* format, that's safe. This is still a bit iffy. */ | |
234 | #ifdef COFF_IMAGE_WITH_PE | |
dc810e39 AM |
235 | scnhdr_int->s_nlnno = (H_GET_16 (abfd, scnhdr_ext->s_nlnno) |
236 | + (H_GET_16 (abfd, scnhdr_ext->s_nreloc) << 16)); | |
cb43721d ILT |
237 | scnhdr_int->s_nreloc = 0; |
238 | #else | |
dc810e39 AM |
239 | scnhdr_int->s_nreloc = H_GET_16 (abfd, scnhdr_ext->s_nreloc); |
240 | scnhdr_int->s_nlnno = H_GET_16 (abfd, scnhdr_ext->s_nlnno); | |
cb43721d | 241 | #endif |
252b5132 | 242 | |
ee91ed79 | 243 | if (scnhdr_int->s_vaddr != 0) |
252b5132 RH |
244 | { |
245 | scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase; | |
246 | scnhdr_int->s_vaddr &= 0xffffffff; | |
247 | } | |
e166a60f | 248 | |
17505c5c | 249 | #ifndef COFF_NO_HACK_SCNHDR_SIZE |
a3476bef NC |
250 | /* If this section holds uninitialized data and is from an object file |
251 | or from an executable image that has not initialized the field, | |
c9ac8978 NC |
252 | or if the image is an executable file and the physical size is padded, |
253 | use the virtual size (stored in s_paddr) instead. */ | |
a3476bef NC |
254 | if (scnhdr_int->s_paddr > 0 |
255 | && (((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0 | |
c9ac8978 NC |
256 | && (! bfd_pe_executable_p (abfd) || scnhdr_int->s_size == 0)) |
257 | || (bfd_pe_executable_p (abfd) && scnhdr_int->s_size > scnhdr_int->s_paddr))) | |
252b5132 | 258 | { |
a3476bef | 259 | scnhdr_int->s_size = scnhdr_int->s_paddr; |
ff0c9faf | 260 | |
e166a60f ILT |
261 | /* This code used to set scnhdr_int->s_paddr to 0. However, |
262 | coff_set_alignment_hook stores s_paddr in virt_size, which | |
263 | only works if it correctly holds the virtual size of the | |
264 | section. */ | |
252b5132 | 265 | } |
17505c5c | 266 | #endif |
252b5132 RH |
267 | } |
268 | ||
b34976b6 | 269 | static bfd_boolean |
252b5132 RH |
270 | pe_mkobject (abfd) |
271 | bfd * abfd; | |
272 | { | |
273 | pe_data_type *pe; | |
dc810e39 AM |
274 | bfd_size_type amt = sizeof (pe_data_type); |
275 | ||
276 | abfd->tdata.pe_obj_data = (struct pe_tdata *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
277 | |
278 | if (abfd->tdata.pe_obj_data == 0) | |
b34976b6 | 279 | return FALSE; |
252b5132 RH |
280 | |
281 | pe = pe_data (abfd); | |
282 | ||
283 | pe->coff.pe = 1; | |
277d1b5e ILT |
284 | |
285 | /* in_reloc_p is architecture dependent. */ | |
252b5132 | 286 | pe->in_reloc_p = in_reloc_p; |
cbff5e0d DD |
287 | |
288 | #ifdef PEI_FORCE_MINIMUM_ALIGNMENT | |
289 | pe->force_minimum_alignment = 1; | |
290 | #endif | |
291 | #ifdef PEI_TARGET_SUBSYSTEM | |
292 | pe->target_subsystem = PEI_TARGET_SUBSYSTEM; | |
293 | #endif | |
294 | ||
b34976b6 | 295 | return TRUE; |
252b5132 RH |
296 | } |
297 | ||
298 | /* Create the COFF backend specific information. */ | |
299 | static PTR | |
300 | pe_mkobject_hook (abfd, filehdr, aouthdr) | |
301 | bfd * abfd; | |
302 | PTR filehdr; | |
5f771d47 | 303 | PTR aouthdr ATTRIBUTE_UNUSED; |
252b5132 RH |
304 | { |
305 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
306 | pe_data_type *pe; | |
307 | ||
82e51918 | 308 | if (! pe_mkobject (abfd)) |
252b5132 RH |
309 | return NULL; |
310 | ||
311 | pe = pe_data (abfd); | |
312 | pe->coff.sym_filepos = internal_f->f_symptr; | |
313 | /* These members communicate important constants about the symbol | |
314 | table to GDB's symbol-reading code. These `constants' | |
315 | unfortunately vary among coff implementations... */ | |
316 | pe->coff.local_n_btmask = N_BTMASK; | |
317 | pe->coff.local_n_btshft = N_BTSHFT; | |
318 | pe->coff.local_n_tmask = N_TMASK; | |
319 | pe->coff.local_n_tshift = N_TSHIFT; | |
320 | pe->coff.local_symesz = SYMESZ; | |
321 | pe->coff.local_auxesz = AUXESZ; | |
322 | pe->coff.local_linesz = LINESZ; | |
323 | ||
1135238b ILT |
324 | pe->coff.timestamp = internal_f->f_timdat; |
325 | ||
252b5132 RH |
326 | obj_raw_syment_count (abfd) = |
327 | obj_conv_table_size (abfd) = | |
328 | internal_f->f_nsyms; | |
329 | ||
330 | pe->real_flags = internal_f->f_flags; | |
331 | ||
332 | if ((internal_f->f_flags & F_DLL) != 0) | |
333 | pe->dll = 1; | |
334 | ||
4cfec37b ILT |
335 | if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) |
336 | abfd->flags |= HAS_DEBUG; | |
337 | ||
252b5132 | 338 | #ifdef COFF_IMAGE_WITH_PE |
ee91ed79 | 339 | if (aouthdr) |
252b5132 RH |
340 | pe->pe_opthdr = ((struct internal_aouthdr *)aouthdr)->pe; |
341 | #endif | |
342 | ||
ee91ed79 | 343 | #ifdef ARM |
252b5132 RH |
344 | if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) |
345 | coff_data (abfd) ->flags = 0; | |
346 | #endif | |
ee91ed79 | 347 | |
252b5132 RH |
348 | return (PTR) pe; |
349 | } | |
350 | ||
b34976b6 | 351 | static bfd_boolean |
277d1b5e ILT |
352 | pe_print_private_bfd_data (abfd, vfile) |
353 | bfd *abfd; | |
354 | PTR vfile; | |
355 | { | |
356 | FILE *file = (FILE *) vfile; | |
357 | ||
cbff5e0d | 358 | if (!_bfd_XX_print_private_bfd_data_common (abfd, vfile)) |
b34976b6 | 359 | return FALSE; |
252b5132 | 360 | |
277d1b5e ILT |
361 | if (pe_saved_coff_bfd_print_private_bfd_data != NULL) |
362 | { | |
363 | fputc ('\n', file); | |
364 | ||
365 | return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile); | |
366 | } | |
367 | ||
b34976b6 | 368 | return TRUE; |
277d1b5e | 369 | } |
252b5132 RH |
370 | |
371 | /* Copy any private info we understand from the input bfd | |
372 | to the output bfd. */ | |
373 | ||
b34976b6 | 374 | static bfd_boolean |
252b5132 RH |
375 | pe_bfd_copy_private_bfd_data (ibfd, obfd) |
376 | bfd *ibfd, *obfd; | |
377 | { | |
5c9c6a54 NC |
378 | /* PR binutils/716: Copy the large address aware flag. |
379 | XXX: Should we be copying other flags or other fields in the pe_data() | |
380 | structure ? */ | |
381 | if (pe_data (obfd) != NULL | |
382 | && pe_data (ibfd) != NULL | |
383 | && pe_data (ibfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE) | |
384 | pe_data (obfd)->real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE; | |
385 | ||
cbff5e0d | 386 | if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd, obfd)) |
b34976b6 | 387 | return FALSE; |
252b5132 RH |
388 | |
389 | if (pe_saved_coff_bfd_copy_private_bfd_data) | |
390 | return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd); | |
252b5132 | 391 | |
b34976b6 | 392 | return TRUE; |
252b5132 RH |
393 | } |
394 | ||
277d1b5e | 395 | #define coff_bfd_copy_private_section_data \ |
cbff5e0d | 396 | _bfd_XX_bfd_copy_private_section_data |
7d2b58d6 | 397 | |
cbff5e0d | 398 | #define coff_get_symbol_info _bfd_XX_get_symbol_info |
cb665cd3 | 399 | |
b1f10154 | 400 | #ifdef COFF_IMAGE_WITH_PE |
17505c5c NC |
401 | \f |
402 | /* Code to handle Microsoft's Image Library Format. | |
403 | Also known as LINK6 format. | |
ee91ed79 | 404 | Documentation about this format can be found at: |
17505c5c NC |
405 | |
406 | http://msdn.microsoft.com/library/specs/pecoff_section8.htm */ | |
407 | ||
408 | /* The following constants specify the sizes of the various data | |
409 | structures that we have to create in order to build a bfd describing | |
410 | an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6 | |
411 | and SIZEOF_IDATA7 below is to allow for the possibility that we might | |
412 | need a padding byte in order to ensure 16 bit alignment for the section's | |
413 | contents. | |
414 | ||
415 | The value for SIZEOF_ILF_STRINGS is computed as follows: | |
416 | ||
417 | There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters | |
11c8a8d1 | 418 | per symbol for their names (longest section name is .idata$x). |
17505c5c NC |
419 | |
420 | There will be two symbols for the imported value, one the symbol name | |
421 | and one with _imp__ prefixed. Allowing for the terminating nul's this | |
11c8a8d1 | 422 | is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll). |
17505c5c NC |
423 | |
424 | The strings in the string table must start STRING__SIZE_SIZE bytes into | |
425 | the table in order to for the string lookup code in coffgen/coffcode to | |
426 | work. */ | |
427 | #define NUM_ILF_RELOCS 8 | |
428 | #define NUM_ILF_SECTIONS 6 | |
429 | #define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS) | |
ee91ed79 | 430 | |
17505c5c NC |
431 | #define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache)) |
432 | #define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table)) | |
433 | #define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms)) | |
11c8a8d1 | 434 | #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table)) |
17505c5c NC |
435 | #define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table)) |
436 | #define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab)) | |
437 | #define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab)) | |
11c8a8d1 NC |
438 | #define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \ |
439 | + 21 + strlen (source_dll) \ | |
440 | + NUM_ILF_SECTIONS * 9 \ | |
441 | + STRING_SIZE_SIZE) | |
17505c5c NC |
442 | #define SIZEOF_IDATA2 (5 * 4) |
443 | #define SIZEOF_IDATA4 (1 * 4) | |
444 | #define SIZEOF_IDATA5 (1 * 4) | |
445 | #define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1) | |
446 | #define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1) | |
447 | #define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata)) | |
ee91ed79 | 448 | |
17505c5c NC |
449 | #define ILF_DATA_SIZE \ |
450 | sizeof (* vars.bim) \ | |
451 | + SIZEOF_ILF_SYMS \ | |
452 | + SIZEOF_ILF_SYM_TABLE \ | |
453 | + SIZEOF_ILF_NATIVE_SYMS \ | |
11c8a8d1 | 454 | + SIZEOF_ILF_SYM_PTR_TABLE \ |
17505c5c NC |
455 | + SIZEOF_ILF_EXT_SYMS \ |
456 | + SIZEOF_ILF_RELOCS \ | |
457 | + SIZEOF_ILF_INT_RELOCS \ | |
458 | + SIZEOF_ILF_STRINGS \ | |
459 | + SIZEOF_IDATA2 \ | |
460 | + SIZEOF_IDATA4 \ | |
461 | + SIZEOF_IDATA5 \ | |
462 | + SIZEOF_IDATA6 \ | |
463 | + SIZEOF_IDATA7 \ | |
464 | + SIZEOF_ILF_SECTIONS \ | |
465 | + MAX_TEXT_SECTION_SIZE | |
466 | ||
17505c5c NC |
467 | /* Create an empty relocation against the given symbol. */ |
468 | static void | |
11c8a8d1 NC |
469 | pe_ILF_make_a_symbol_reloc (pe_ILF_vars * vars, |
470 | bfd_vma address, | |
471 | bfd_reloc_code_real_type reloc, | |
fc0a2244 | 472 | struct bfd_symbol ** sym, |
11c8a8d1 | 473 | unsigned int sym_index) |
17505c5c NC |
474 | { |
475 | arelent * entry; | |
476 | struct internal_reloc * internal; | |
477 | ||
478 | entry = vars->reltab + vars->relcount; | |
479 | internal = vars->int_reltab + vars->relcount; | |
ee91ed79 | 480 | |
17505c5c NC |
481 | entry->address = address; |
482 | entry->addend = 0; | |
483 | entry->howto = bfd_reloc_type_lookup (vars->abfd, reloc); | |
11c8a8d1 | 484 | entry->sym_ptr_ptr = sym; |
17505c5c NC |
485 | |
486 | internal->r_vaddr = address; | |
11c8a8d1 | 487 | internal->r_symndx = sym_index; |
17505c5c | 488 | internal->r_type = entry->howto->type; |
ee91ed79 | 489 | |
17505c5c | 490 | vars->relcount ++; |
ee91ed79 | 491 | |
17505c5c NC |
492 | BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS); |
493 | } | |
494 | ||
11c8a8d1 NC |
495 | /* Create an empty relocation against the given section. */ |
496 | static void | |
497 | pe_ILF_make_a_reloc (pe_ILF_vars * vars, | |
498 | bfd_vma address, | |
499 | bfd_reloc_code_real_type reloc, | |
500 | asection_ptr sec) | |
501 | { | |
502 | pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr, | |
503 | coff_section_data (vars->abfd, sec)->i); | |
504 | } | |
505 | ||
17505c5c NC |
506 | /* Move the queued relocs into the given section. */ |
507 | static void | |
508 | pe_ILF_save_relocs (pe_ILF_vars * vars, | |
509 | asection_ptr sec) | |
510 | { | |
511 | /* Make sure that there is somewhere to store the internal relocs. */ | |
512 | if (coff_section_data (vars->abfd, sec) == NULL) | |
513 | /* We should probably return an error indication here. */ | |
514 | abort (); | |
515 | ||
516 | coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab; | |
b34976b6 | 517 | coff_section_data (vars->abfd, sec)->keep_relocs = TRUE; |
17505c5c NC |
518 | |
519 | sec->relocation = vars->reltab; | |
520 | sec->reloc_count = vars->relcount; | |
521 | sec->flags |= SEC_RELOC; | |
522 | ||
523 | vars->reltab += vars->relcount; | |
524 | vars->int_reltab += vars->relcount; | |
525 | vars->relcount = 0; | |
526 | ||
dc810e39 | 527 | BFD_ASSERT ((bfd_byte *) vars->int_reltab < (bfd_byte *) vars->string_table); |
17505c5c NC |
528 | } |
529 | ||
530 | /* Create a global symbol and add it to the relevant tables. */ | |
531 | static void | |
532 | pe_ILF_make_a_symbol (pe_ILF_vars * vars, | |
533 | const char * prefix, | |
534 | const char * symbol_name, | |
535 | asection_ptr section, | |
536 | flagword extra_flags) | |
537 | { | |
538 | coff_symbol_type * sym; | |
539 | combined_entry_type * ent; | |
540 | SYMENT * esym; | |
541 | unsigned short sclass; | |
542 | ||
543 | if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 544 | sclass = C_STAT; |
17505c5c NC |
545 | else |
546 | sclass = C_EXT; | |
ee91ed79 KH |
547 | |
548 | #ifdef THUMBPEMAGIC | |
17505c5c NC |
549 | if (vars->magic == THUMBPEMAGIC) |
550 | { | |
551 | if (extra_flags & BSF_FUNCTION) | |
552 | sclass = C_THUMBEXTFUNC; | |
553 | else if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 554 | sclass = C_THUMBSTAT; |
17505c5c NC |
555 | else |
556 | sclass = C_THUMBEXT; | |
557 | } | |
558 | #endif | |
559 | ||
560 | BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS); | |
ee91ed79 | 561 | |
17505c5c NC |
562 | sym = vars->sym_ptr; |
563 | ent = vars->native_ptr; | |
564 | esym = vars->esym_ptr; | |
565 | ||
566 | /* Copy the symbol's name into the string table. */ | |
567 | sprintf (vars->string_ptr, "%s%s", prefix, symbol_name); | |
568 | ||
10821322 NC |
569 | if (section == NULL) |
570 | section = (asection_ptr) & bfd_und_section; | |
ee91ed79 | 571 | |
17505c5c | 572 | /* Initialise the external symbol. */ |
dc810e39 AM |
573 | H_PUT_32 (vars->abfd, vars->string_ptr - vars->string_table, |
574 | esym->e.e.e_offset); | |
575 | H_PUT_16 (vars->abfd, section->target_index, esym->e_scnum); | |
17505c5c NC |
576 | esym->e_sclass[0] = sclass; |
577 | ||
578 | /* The following initialisations are unnecessary - the memory is | |
579 | zero initialised. They are just kept here as reminders. */ | |
ee91ed79 | 580 | |
17505c5c NC |
581 | /* Initialise the internal symbol structure. */ |
582 | ent->u.syment.n_sclass = sclass; | |
10821322 | 583 | ent->u.syment.n_scnum = section->target_index; |
17505c5c | 584 | ent->u.syment._n._n_n._n_offset = (long) sym; |
ee91ed79 | 585 | |
17505c5c NC |
586 | sym->symbol.the_bfd = vars->abfd; |
587 | sym->symbol.name = vars->string_ptr; | |
588 | sym->symbol.flags = BSF_EXPORT | BSF_GLOBAL | extra_flags; | |
589 | sym->symbol.section = section; | |
590 | sym->native = ent; | |
ee91ed79 | 591 | |
17505c5c | 592 | * vars->table_ptr = vars->sym_index; |
11c8a8d1 | 593 | * vars->sym_ptr_ptr = sym; |
ee91ed79 | 594 | |
17505c5c NC |
595 | /* Adjust pointers for the next symbol. */ |
596 | vars->sym_index ++; | |
597 | vars->sym_ptr ++; | |
11c8a8d1 | 598 | vars->sym_ptr_ptr ++; |
17505c5c NC |
599 | vars->table_ptr ++; |
600 | vars->native_ptr ++; | |
601 | vars->esym_ptr ++; | |
11c8a8d1 | 602 | vars->string_ptr += strlen (symbol_name) + strlen (prefix) + 1; |
17505c5c NC |
603 | |
604 | BFD_ASSERT (vars->string_ptr < vars->end_string_ptr); | |
605 | } | |
606 | ||
607 | /* Create a section. */ | |
608 | static asection_ptr | |
609 | pe_ILF_make_a_section (pe_ILF_vars * vars, | |
610 | const char * name, | |
611 | unsigned int size, | |
612 | flagword extra_flags) | |
613 | { | |
614 | asection_ptr sec; | |
615 | flagword flags; | |
ee91ed79 | 616 | |
17505c5c NC |
617 | sec = bfd_make_section_old_way (vars->abfd, name); |
618 | if (sec == NULL) | |
619 | return NULL; | |
ee91ed79 | 620 | |
17505c5c | 621 | flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY; |
ee91ed79 | 622 | |
17505c5c | 623 | bfd_set_section_flags (vars->abfd, sec, flags | extra_flags); |
ee91ed79 | 624 | |
17505c5c | 625 | bfd_set_section_alignment (vars->abfd, sec, 2); |
ee91ed79 | 626 | |
17505c5c NC |
627 | /* Check that we will not run out of space. */ |
628 | BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 629 | |
17505c5c NC |
630 | /* Set the section size and contents. The actual |
631 | contents are filled in by our parent. */ | |
dc810e39 | 632 | bfd_set_section_size (vars->abfd, sec, (bfd_size_type) size); |
17505c5c NC |
633 | sec->contents = vars->data; |
634 | sec->target_index = vars->sec_index ++; | |
635 | ||
636 | /* Advance data pointer in the vars structure. */ | |
637 | vars->data += size; | |
ee91ed79 | 638 | |
17505c5c NC |
639 | /* Skip the padding byte if it was not needed. |
640 | The logic here is that if the string length is odd, | |
641 | then the entire string length, including the null byte, | |
642 | is even and so the extra, padding byte, is not needed. */ | |
643 | if (size & 1) | |
644 | vars->data --; | |
ee91ed79 | 645 | |
17505c5c NC |
646 | /* Create a coff_section_tdata structure for our use. */ |
647 | sec->used_by_bfd = (struct coff_section_tdata *) vars->data; | |
648 | vars->data += sizeof (struct coff_section_tdata); | |
649 | ||
650 | BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 651 | |
17505c5c NC |
652 | /* Create a symbol to refer to this section. */ |
653 | pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL); | |
654 | ||
11c8a8d1 | 655 | /* Cache the index to the symbol in the coff_section_data structure. */ |
17505c5c | 656 | coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1; |
ee91ed79 | 657 | |
17505c5c NC |
658 | return sec; |
659 | } | |
660 | ||
661 | /* This structure contains the code that goes into the .text section | |
662 | in order to perform a jump into the DLL lookup table. The entries | |
663 | in the table are index by the magic number used to represent the | |
664 | machine type in the PE file. The contents of the data[] arrays in | |
665 | these entries are stolen from the jtab[] arrays in ld/pe-dll.c. | |
666 | The SIZE field says how many bytes in the DATA array are actually | |
667 | used. The OFFSET field says where in the data array the address | |
668 | of the .idata$5 section should be placed. */ | |
669 | #define MAX_TEXT_SECTION_SIZE 32 | |
670 | ||
671 | typedef struct | |
672 | { | |
673 | unsigned short magic; | |
674 | unsigned char data[MAX_TEXT_SECTION_SIZE]; | |
675 | unsigned int size; | |
676 | unsigned int offset; | |
677 | } | |
678 | jump_table; | |
679 | ||
86033394 | 680 | static jump_table jtab[] = |
17505c5c NC |
681 | { |
682 | #ifdef I386MAGIC | |
683 | { I386MAGIC, | |
684 | { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, | |
685 | 8, 2 | |
686 | }, | |
687 | #endif | |
ee91ed79 | 688 | |
17505c5c NC |
689 | #ifdef MC68MAGIC |
690 | { MC68MAGIC, { /* XXX fill me in */ }, 0, 0 }, | |
691 | #endif | |
692 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
693 | { MIPS_ARCH_MAGIC_WINCE, | |
694 | { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, | |
695 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 }, | |
696 | 16, 0 | |
697 | }, | |
698 | #endif | |
ee91ed79 | 699 | |
17505c5c NC |
700 | #ifdef SH_ARCH_MAGIC_WINCE |
701 | { SH_ARCH_MAGIC_WINCE, | |
702 | { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, | |
703 | 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 }, | |
704 | 12, 8 | |
705 | }, | |
706 | #endif | |
ee91ed79 | 707 | |
17505c5c NC |
708 | #ifdef ARMPEMAGIC |
709 | { ARMPEMAGIC, | |
710 | { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0, | |
711 | 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00}, | |
712 | 12, 8 | |
713 | }, | |
714 | #endif | |
ee91ed79 | 715 | |
17505c5c NC |
716 | #ifdef THUMBPEMAGIC |
717 | { THUMBPEMAGIC, | |
718 | { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46, | |
719 | 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 }, | |
720 | 16, 12 | |
721 | }, | |
722 | #endif | |
723 | { 0, { 0 }, 0, 0 } | |
724 | }; | |
725 | ||
726 | #ifndef NUM_ENTRIES | |
727 | #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0]) | |
728 | #endif | |
729 | ||
730 | /* Build a full BFD from the information supplied in a ILF object. */ | |
b34976b6 | 731 | static bfd_boolean |
17505c5c | 732 | pe_ILF_build_a_bfd (bfd * abfd, |
dc810e39 | 733 | unsigned int magic, |
f075ee0c AM |
734 | char * symbol_name, |
735 | char * source_dll, | |
17505c5c NC |
736 | unsigned int ordinal, |
737 | unsigned int types) | |
ee91ed79 | 738 | { |
17505c5c NC |
739 | bfd_byte * ptr; |
740 | pe_ILF_vars vars; | |
741 | struct internal_filehdr internal_f; | |
742 | unsigned int import_type; | |
743 | unsigned int import_name_type; | |
11c8a8d1 NC |
744 | asection_ptr id4, id5, id6 = NULL, text = NULL; |
745 | coff_symbol_type ** imp_sym; | |
746 | unsigned int imp_index; | |
17505c5c | 747 | |
17505c5c NC |
748 | /* Decode and verify the types field of the ILF structure. */ |
749 | import_type = types & 0x3; | |
750 | import_name_type = (types & 0x1c) >> 2; | |
751 | ||
752 | switch (import_type) | |
753 | { | |
754 | case IMPORT_CODE: | |
755 | case IMPORT_DATA: | |
756 | break; | |
ee91ed79 | 757 | |
17505c5c NC |
758 | case IMPORT_CONST: |
759 | /* XXX code yet to be written. */ | |
d003868e AM |
760 | _bfd_error_handler (_("%B: Unhandled import type; %x"), |
761 | abfd, import_type); | |
b34976b6 | 762 | return FALSE; |
ee91ed79 | 763 | |
17505c5c | 764 | default: |
d003868e AM |
765 | _bfd_error_handler (_("%B: Unrecognised import type; %x"), |
766 | abfd, import_type); | |
b34976b6 | 767 | return FALSE; |
17505c5c NC |
768 | } |
769 | ||
770 | switch (import_name_type) | |
771 | { | |
772 | case IMPORT_ORDINAL: | |
773 | case IMPORT_NAME: | |
774 | case IMPORT_NAME_NOPREFIX: | |
775 | case IMPORT_NAME_UNDECORATE: | |
776 | break; | |
ee91ed79 | 777 | |
17505c5c | 778 | default: |
d003868e AM |
779 | _bfd_error_handler (_("%B: Unrecognised import name type; %x"), |
780 | abfd, import_name_type); | |
b34976b6 | 781 | return FALSE; |
17505c5c NC |
782 | } |
783 | ||
784 | /* Initialise local variables. | |
ee91ed79 | 785 | |
17505c5c NC |
786 | Note these are kept in a structure rather than being |
787 | declared as statics since bfd frowns on global variables. | |
ee91ed79 | 788 | |
17505c5c NC |
789 | We are going to construct the contents of the BFD in memory, |
790 | so allocate all the space that we will need right now. */ | |
dc810e39 | 791 | ptr = bfd_zalloc (abfd, (bfd_size_type) ILF_DATA_SIZE); |
17505c5c | 792 | if (ptr == NULL) |
b34976b6 | 793 | return FALSE; |
17505c5c NC |
794 | |
795 | /* Create a bfd_in_memory structure. */ | |
796 | vars.bim = (struct bfd_in_memory *) ptr; | |
797 | vars.bim->buffer = ptr; | |
798 | vars.bim->size = ILF_DATA_SIZE; | |
799 | ptr += sizeof (* vars.bim); | |
ee91ed79 | 800 | |
17505c5c NC |
801 | /* Initialise the pointers to regions of the memory and the |
802 | other contents of the pe_ILF_vars structure as well. */ | |
803 | vars.sym_cache = (coff_symbol_type *) ptr; | |
804 | vars.sym_ptr = (coff_symbol_type *) ptr; | |
805 | vars.sym_index = 0; | |
806 | ptr += SIZEOF_ILF_SYMS; | |
ee91ed79 | 807 | |
17505c5c NC |
808 | vars.sym_table = (unsigned int *) ptr; |
809 | vars.table_ptr = (unsigned int *) ptr; | |
810 | ptr += SIZEOF_ILF_SYM_TABLE; | |
811 | ||
812 | vars.native_syms = (combined_entry_type *) ptr; | |
813 | vars.native_ptr = (combined_entry_type *) ptr; | |
814 | ptr += SIZEOF_ILF_NATIVE_SYMS; | |
11c8a8d1 NC |
815 | |
816 | vars.sym_ptr_table = (coff_symbol_type **) ptr; | |
817 | vars.sym_ptr_ptr = (coff_symbol_type **) ptr; | |
818 | ptr += SIZEOF_ILF_SYM_PTR_TABLE; | |
ee91ed79 | 819 | |
17505c5c NC |
820 | vars.esym_table = (SYMENT *) ptr; |
821 | vars.esym_ptr = (SYMENT *) ptr; | |
822 | ptr += SIZEOF_ILF_EXT_SYMS; | |
ee91ed79 | 823 | |
17505c5c NC |
824 | vars.reltab = (arelent *) ptr; |
825 | vars.relcount = 0; | |
826 | ptr += SIZEOF_ILF_RELOCS; | |
827 | ||
828 | vars.int_reltab = (struct internal_reloc *) ptr; | |
829 | ptr += SIZEOF_ILF_INT_RELOCS; | |
830 | ||
f075ee0c AM |
831 | vars.string_table = (char *) ptr; |
832 | vars.string_ptr = (char *) ptr + STRING_SIZE_SIZE; | |
17505c5c | 833 | ptr += SIZEOF_ILF_STRINGS; |
f075ee0c | 834 | vars.end_string_ptr = (char *) ptr; |
ee91ed79 | 835 | |
17505c5c NC |
836 | /* The remaining space in bim->buffer is used |
837 | by the pe_ILF_make_a_section() function. */ | |
838 | vars.data = ptr; | |
839 | vars.abfd = abfd; | |
840 | vars.sec_index = 0; | |
841 | vars.magic = magic; | |
ee91ed79 | 842 | |
17505c5c | 843 | /* Create the initial .idata$<n> sections: |
11c8a8d1 | 844 | [.idata$2: Import Directory Table -- not needed] |
17505c5c NC |
845 | .idata$4: Import Lookup Table |
846 | .idata$5: Import Address Table | |
847 | ||
848 | Note we do not create a .idata$3 section as this is | |
849 | created for us by the linker script. */ | |
17505c5c NC |
850 | id4 = pe_ILF_make_a_section (& vars, ".idata$4", SIZEOF_IDATA4, 0); |
851 | id5 = pe_ILF_make_a_section (& vars, ".idata$5", SIZEOF_IDATA5, 0); | |
11c8a8d1 | 852 | if (id4 == NULL || id5 == NULL) |
b34976b6 | 853 | return FALSE; |
ee91ed79 | 854 | |
17505c5c NC |
855 | /* Fill in the contents of these sections. */ |
856 | if (import_name_type == IMPORT_ORDINAL) | |
857 | { | |
858 | if (ordinal == 0) | |
859 | /* XXX - treat as IMPORT_NAME ??? */ | |
860 | abort (); | |
ee91ed79 | 861 | |
fc633e5b AM |
862 | * (unsigned int *) id4->contents = ordinal | 0x80000000; |
863 | * (unsigned int *) id5->contents = ordinal | 0x80000000; | |
17505c5c NC |
864 | } |
865 | else | |
866 | { | |
867 | char * symbol; | |
f67e617a | 868 | unsigned int len; |
ee91ed79 | 869 | |
17505c5c NC |
870 | /* Create .idata$6 - the Hint Name Table. */ |
871 | id6 = pe_ILF_make_a_section (& vars, ".idata$6", SIZEOF_IDATA6, 0); | |
872 | if (id6 == NULL) | |
b34976b6 | 873 | return FALSE; |
17505c5c NC |
874 | |
875 | /* If necessary, trim the import symbol name. */ | |
876 | symbol = symbol_name; | |
877 | ||
cabd4ccc DS |
878 | /* As used by MS compiler, '_', '@', and '?' are alternative |
879 | forms of USER_LABEL_PREFIX, with '?' for c++ mangled names, | |
880 | '@' used for fastcall (in C), '_' everywhere else. Only one | |
881 | of these is used for a symbol. We strip this leading char for | |
882 | IMPORT_NAME_NOPREFIX and IMPORT_NAME_UNDECORATE as per the | |
883 | PE COFF 6.0 spec (section 8.3, Import Name Type). */ | |
884 | ||
17505c5c | 885 | if (import_name_type != IMPORT_NAME) |
87cc7031 | 886 | { |
cabd4ccc DS |
887 | char c = symbol[0]; |
888 | if (c == '_' || c == '@' || c == '?') | |
889 | symbol++; | |
87cc7031 NC |
890 | } |
891 | ||
f67e617a | 892 | len = strlen (symbol); |
17505c5c NC |
893 | if (import_name_type == IMPORT_NAME_UNDECORATE) |
894 | { | |
f67e617a NC |
895 | /* Truncate at the first '@'. */ |
896 | char *at = strchr (symbol, '@'); | |
17505c5c | 897 | |
f67e617a NC |
898 | if (at != NULL) |
899 | len = at - symbol; | |
17505c5c | 900 | } |
ee91ed79 | 901 | |
11c8a8d1 NC |
902 | id6->contents[0] = ordinal & 0xff; |
903 | id6->contents[1] = ordinal >> 8; | |
ee91ed79 | 904 | |
f67e617a NC |
905 | memcpy ((char *) id6->contents + 2, symbol, len); |
906 | id6->contents[len + 2] = '\0'; | |
17505c5c NC |
907 | } |
908 | ||
17505c5c NC |
909 | if (import_name_type != IMPORT_ORDINAL) |
910 | { | |
dc810e39 AM |
911 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6); |
912 | pe_ILF_save_relocs (&vars, id4); | |
ee91ed79 | 913 | |
dc810e39 AM |
914 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6); |
915 | pe_ILF_save_relocs (&vars, id5); | |
17505c5c NC |
916 | } |
917 | ||
918 | /* Create extra sections depending upon the type of import we are dealing with. */ | |
919 | switch (import_type) | |
920 | { | |
921 | int i; | |
ee91ed79 | 922 | |
17505c5c NC |
923 | case IMPORT_CODE: |
924 | /* Create a .text section. | |
925 | First we need to look up its contents in the jump table. */ | |
926 | for (i = NUM_ENTRIES (jtab); i--;) | |
927 | { | |
928 | if (jtab[i].size == 0) | |
929 | continue; | |
930 | if (jtab[i].magic == magic) | |
931 | break; | |
932 | } | |
933 | /* If we did not find a matching entry something is wrong. */ | |
934 | if (i < 0) | |
935 | abort (); | |
936 | ||
937 | /* Create the .text section. */ | |
938 | text = pe_ILF_make_a_section (& vars, ".text", jtab[i].size, SEC_CODE); | |
939 | if (text == NULL) | |
b34976b6 | 940 | return FALSE; |
17505c5c NC |
941 | |
942 | /* Copy in the jump code. */ | |
943 | memcpy (text->contents, jtab[i].data, jtab[i].size); | |
944 | ||
11c8a8d1 NC |
945 | /* Create an import symbol. */ |
946 | pe_ILF_make_a_symbol (& vars, "__imp_", symbol_name, id5, 0); | |
947 | imp_sym = vars.sym_ptr_ptr - 1; | |
948 | imp_index = vars.sym_index - 1; | |
ee91ed79 | 949 | |
17505c5c | 950 | /* Create a reloc for the data in the text section. */ |
ee91ed79 | 951 | #ifdef MIPS_ARCH_MAGIC_WINCE |
17505c5c NC |
952 | if (magic == MIPS_ARCH_MAGIC_WINCE) |
953 | { | |
dc810e39 | 954 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 0, BFD_RELOC_HI16_S, |
fc0a2244 | 955 | (struct bfd_symbol **) imp_sym, |
dc810e39 AM |
956 | imp_index); |
957 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_LO16, text); | |
958 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 4, BFD_RELOC_LO16, | |
fc0a2244 | 959 | (struct bfd_symbol **) imp_sym, |
dc810e39 | 960 | imp_index); |
17505c5c NC |
961 | } |
962 | else | |
963 | #endif | |
dc810e39 AM |
964 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) jtab[i].offset, |
965 | BFD_RELOC_32, (asymbol **) imp_sym, | |
966 | imp_index); | |
ee91ed79 | 967 | |
17505c5c NC |
968 | pe_ILF_save_relocs (& vars, text); |
969 | break; | |
970 | ||
971 | case IMPORT_DATA: | |
972 | break; | |
973 | ||
974 | default: | |
975 | /* XXX code not yet written. */ | |
976 | abort (); | |
977 | } | |
ee91ed79 | 978 | |
17505c5c NC |
979 | /* Initialise the bfd. */ |
980 | memset (& internal_f, 0, sizeof (internal_f)); | |
ee91ed79 | 981 | |
17505c5c NC |
982 | internal_f.f_magic = magic; |
983 | internal_f.f_symptr = 0; | |
984 | internal_f.f_nsyms = 0; | |
985 | internal_f.f_flags = F_AR32WR | F_LNNO; /* XXX is this correct ? */ | |
ee91ed79 | 986 | |
dc810e39 | 987 | if ( ! bfd_set_start_address (abfd, (bfd_vma) 0) |
17505c5c | 988 | || ! bfd_coff_set_arch_mach_hook (abfd, & internal_f)) |
b34976b6 | 989 | return FALSE; |
17505c5c NC |
990 | |
991 | if (bfd_coff_mkobject_hook (abfd, (PTR) & internal_f, NULL) == NULL) | |
b34976b6 | 992 | return FALSE; |
17505c5c NC |
993 | |
994 | coff_data (abfd)->pe = 1; | |
ee91ed79 | 995 | #ifdef THUMBPEMAGIC |
17505c5c NC |
996 | if (vars.magic == THUMBPEMAGIC) |
997 | /* Stop some linker warnings about thumb code not supporting interworking. */ | |
998 | coff_data (abfd)->flags |= F_INTERWORK | F_INTERWORK_SET; | |
999 | #endif | |
ee91ed79 | 1000 | |
17505c5c NC |
1001 | /* Switch from file contents to memory contents. */ |
1002 | bfd_cache_close (abfd); | |
1003 | ||
1004 | abfd->iostream = (PTR) vars.bim; | |
1005 | abfd->flags |= BFD_IN_MEMORY /* | HAS_LOCALS */; | |
1006 | abfd->where = 0; | |
1007 | obj_sym_filepos (abfd) = 0; | |
1008 | ||
1009 | /* Now create a symbol describing the imported value. */ | |
1010 | switch (import_type) | |
1011 | { | |
1012 | case IMPORT_CODE: | |
1013 | pe_ILF_make_a_symbol (& vars, "", symbol_name, text, | |
1014 | BSF_NOT_AT_END | BSF_FUNCTION); | |
ee91ed79 | 1015 | |
11c8a8d1 NC |
1016 | /* Create an import symbol for the DLL, without the |
1017 | .dll suffix. */ | |
f075ee0c | 1018 | ptr = (bfd_byte *) strrchr (source_dll, '.'); |
11c8a8d1 NC |
1019 | if (ptr) |
1020 | * ptr = 0; | |
1021 | pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0); | |
1022 | if (ptr) | |
1023 | * ptr = '.'; | |
17505c5c NC |
1024 | break; |
1025 | ||
1026 | case IMPORT_DATA: | |
11c8a8d1 | 1027 | /* Nothing to do here. */ |
17505c5c | 1028 | break; |
ee91ed79 | 1029 | |
17505c5c NC |
1030 | default: |
1031 | /* XXX code not yet written. */ | |
1032 | abort (); | |
1033 | } | |
1034 | ||
17505c5c NC |
1035 | /* Point the bfd at the symbol table. */ |
1036 | obj_symbols (abfd) = vars.sym_cache; | |
1037 | bfd_get_symcount (abfd) = vars.sym_index; | |
ee91ed79 | 1038 | |
17505c5c NC |
1039 | obj_raw_syments (abfd) = vars.native_syms; |
1040 | obj_raw_syment_count (abfd) = vars.sym_index; | |
1041 | ||
1042 | obj_coff_external_syms (abfd) = (PTR) vars.esym_table; | |
b34976b6 | 1043 | obj_coff_keep_syms (abfd) = TRUE; |
ee91ed79 | 1044 | |
17505c5c NC |
1045 | obj_convert (abfd) = vars.sym_table; |
1046 | obj_conv_table_size (abfd) = vars.sym_index; | |
ee91ed79 | 1047 | |
17505c5c | 1048 | obj_coff_strings (abfd) = vars.string_table; |
b34976b6 | 1049 | obj_coff_keep_strings (abfd) = TRUE; |
17505c5c NC |
1050 | |
1051 | abfd->flags |= HAS_SYMS; | |
1052 | ||
b34976b6 | 1053 | return TRUE; |
17505c5c NC |
1054 | } |
1055 | ||
1056 | /* We have detected a Image Library Format archive element. | |
1057 | Decode the element and return the appropriate target. */ | |
cb665cd3 | 1058 | static const bfd_target * |
17505c5c NC |
1059 | pe_ILF_object_p (bfd * abfd) |
1060 | { | |
1061 | bfd_byte buffer[16]; | |
1062 | bfd_byte * ptr; | |
f075ee0c AM |
1063 | char * symbol_name; |
1064 | char * source_dll; | |
17505c5c | 1065 | unsigned int machine; |
dc810e39 | 1066 | bfd_size_type size; |
17505c5c NC |
1067 | unsigned int ordinal; |
1068 | unsigned int types; | |
dc810e39 | 1069 | unsigned int magic; |
ee91ed79 | 1070 | |
17505c5c NC |
1071 | /* Upon entry the first four buyes of the ILF header have |
1072 | already been read. Now read the rest of the header. */ | |
dc810e39 | 1073 | if (bfd_bread (buffer, (bfd_size_type) 16, abfd) != 16) |
17505c5c NC |
1074 | return NULL; |
1075 | ||
1076 | ptr = buffer; | |
ee91ed79 | 1077 | |
17505c5c | 1078 | /* We do not bother to check the version number. |
dc810e39 | 1079 | version = H_GET_16 (abfd, ptr); */ |
17505c5c NC |
1080 | ptr += 2; |
1081 | ||
dc810e39 | 1082 | machine = H_GET_16 (abfd, ptr); |
17505c5c NC |
1083 | ptr += 2; |
1084 | ||
1085 | /* Check that the machine type is recognised. */ | |
1086 | magic = 0; | |
ee91ed79 | 1087 | |
17505c5c NC |
1088 | switch (machine) |
1089 | { | |
1090 | case IMAGE_FILE_MACHINE_UNKNOWN: | |
1091 | case IMAGE_FILE_MACHINE_ALPHA: | |
1092 | case IMAGE_FILE_MACHINE_ALPHA64: | |
1093 | case IMAGE_FILE_MACHINE_IA64: | |
1094 | break; | |
ee91ed79 | 1095 | |
17505c5c NC |
1096 | case IMAGE_FILE_MACHINE_I386: |
1097 | #ifdef I386MAGIC | |
1098 | magic = I386MAGIC; | |
1099 | #endif | |
1100 | break; | |
ee91ed79 | 1101 | |
17505c5c NC |
1102 | case IMAGE_FILE_MACHINE_M68K: |
1103 | #ifdef MC68AGIC | |
1104 | magic = MC68MAGIC; | |
1105 | #endif | |
1106 | break; | |
ee91ed79 | 1107 | |
17505c5c NC |
1108 | case IMAGE_FILE_MACHINE_R3000: |
1109 | case IMAGE_FILE_MACHINE_R4000: | |
1110 | case IMAGE_FILE_MACHINE_R10000: | |
ee91ed79 | 1111 | |
17505c5c NC |
1112 | case IMAGE_FILE_MACHINE_MIPS16: |
1113 | case IMAGE_FILE_MACHINE_MIPSFPU: | |
1114 | case IMAGE_FILE_MACHINE_MIPSFPU16: | |
1115 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
1116 | magic = MIPS_ARCH_MAGIC_WINCE; | |
1117 | #endif | |
1118 | break; | |
ee91ed79 | 1119 | |
17505c5c NC |
1120 | case IMAGE_FILE_MACHINE_SH3: |
1121 | case IMAGE_FILE_MACHINE_SH4: | |
1122 | #ifdef SH_ARCH_MAGIC_WINCE | |
1123 | magic = SH_ARCH_MAGIC_WINCE; | |
1124 | #endif | |
1125 | break; | |
ee91ed79 | 1126 | |
17505c5c NC |
1127 | case IMAGE_FILE_MACHINE_ARM: |
1128 | #ifdef ARMPEMAGIC | |
1129 | magic = ARMPEMAGIC; | |
ee91ed79 | 1130 | #endif |
17505c5c | 1131 | break; |
ee91ed79 | 1132 | |
17505c5c NC |
1133 | case IMAGE_FILE_MACHINE_THUMB: |
1134 | #ifdef THUMBPEMAGIC | |
1135 | { | |
23ccc829 | 1136 | extern const bfd_target TARGET_LITTLE_SYM; |
ee91ed79 | 1137 | |
26bfd1c0 | 1138 | if (abfd->xvec == & TARGET_LITTLE_SYM) |
17505c5c NC |
1139 | magic = THUMBPEMAGIC; |
1140 | } | |
ee91ed79 | 1141 | #endif |
17505c5c | 1142 | break; |
ee91ed79 | 1143 | |
17505c5c NC |
1144 | case IMAGE_FILE_MACHINE_POWERPC: |
1145 | /* We no longer support PowerPC. */ | |
1146 | default: | |
1147 | _bfd_error_handler | |
d003868e AM |
1148 | (_("%B: Unrecognised machine type (0x%x)" |
1149 | " in Import Library Format archive"), | |
1150 | abfd, machine); | |
17505c5c | 1151 | bfd_set_error (bfd_error_malformed_archive); |
ee91ed79 | 1152 | |
17505c5c NC |
1153 | return NULL; |
1154 | break; | |
1155 | } | |
1156 | ||
1157 | if (magic == 0) | |
1158 | { | |
1159 | _bfd_error_handler | |
d003868e AM |
1160 | (_("%B: Recognised but unhandled machine type (0x%x)" |
1161 | " in Import Library Format archive"), | |
1162 | abfd, machine); | |
17505c5c | 1163 | bfd_set_error (bfd_error_wrong_format); |
ee91ed79 | 1164 | |
17505c5c | 1165 | return NULL; |
ee91ed79 | 1166 | } |
17505c5c NC |
1167 | |
1168 | /* We do not bother to check the date. | |
dc810e39 | 1169 | date = H_GET_32 (abfd, ptr); */ |
17505c5c | 1170 | ptr += 4; |
ee91ed79 | 1171 | |
dc810e39 | 1172 | size = H_GET_32 (abfd, ptr); |
17505c5c NC |
1173 | ptr += 4; |
1174 | ||
1175 | if (size == 0) | |
1176 | { | |
1177 | _bfd_error_handler | |
d003868e | 1178 | (_("%B: size field is zero in Import Library Format header"), abfd); |
17505c5c | 1179 | bfd_set_error (bfd_error_malformed_archive); |
ee91ed79 | 1180 | |
17505c5c NC |
1181 | return NULL; |
1182 | } | |
1183 | ||
dc810e39 | 1184 | ordinal = H_GET_16 (abfd, ptr); |
17505c5c NC |
1185 | ptr += 2; |
1186 | ||
dc810e39 | 1187 | types = H_GET_16 (abfd, ptr); |
17505c5c NC |
1188 | /* ptr += 2; */ |
1189 | ||
1190 | /* Now read in the two strings that follow. */ | |
1191 | ptr = bfd_alloc (abfd, size); | |
1192 | if (ptr == NULL) | |
1193 | return NULL; | |
ee91ed79 | 1194 | |
dc810e39 | 1195 | if (bfd_bread (ptr, size, abfd) != size) |
487e54f2 AM |
1196 | { |
1197 | bfd_release (abfd, ptr); | |
1198 | return NULL; | |
1199 | } | |
17505c5c | 1200 | |
f075ee0c AM |
1201 | symbol_name = (char *) ptr; |
1202 | source_dll = symbol_name + strlen (symbol_name) + 1; | |
ee91ed79 | 1203 | |
17505c5c | 1204 | /* Verify that the strings are null terminated. */ |
f075ee0c AM |
1205 | if (ptr[size - 1] != 0 |
1206 | || (bfd_size_type) ((bfd_byte *) source_dll - ptr) >= size) | |
17505c5c NC |
1207 | { |
1208 | _bfd_error_handler | |
d003868e | 1209 | (_("%B: string not null terminated in ILF object file."), abfd); |
17505c5c | 1210 | bfd_set_error (bfd_error_malformed_archive); |
487e54f2 | 1211 | bfd_release (abfd, ptr); |
17505c5c NC |
1212 | return NULL; |
1213 | } | |
ee91ed79 | 1214 | |
17505c5c NC |
1215 | /* Now construct the bfd. */ |
1216 | if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name, | |
1217 | source_dll, ordinal, types)) | |
487e54f2 AM |
1218 | { |
1219 | bfd_release (abfd, ptr); | |
1220 | return NULL; | |
1221 | } | |
ee91ed79 | 1222 | |
17505c5c NC |
1223 | return abfd->xvec; |
1224 | } | |
1225 | ||
1226 | static const bfd_target * | |
1227 | pe_bfd_object_p (bfd * abfd) | |
cb665cd3 | 1228 | { |
cb665cd3 | 1229 | bfd_byte buffer[4]; |
15e0ecd9 L |
1230 | struct external_PEI_DOS_hdr dos_hdr; |
1231 | struct external_PEI_IMAGE_hdr image_hdr; | |
cb665cd3 | 1232 | file_ptr offset; |
cb665cd3 NC |
1233 | |
1234 | /* Detect if this a Microsoft Import Library Format element. */ | |
dc810e39 AM |
1235 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 |
1236 | || bfd_bread (buffer, (bfd_size_type) 4, abfd) != 4) | |
cb665cd3 NC |
1237 | { |
1238 | if (bfd_get_error () != bfd_error_system_call) | |
1239 | bfd_set_error (bfd_error_wrong_format); | |
1240 | return NULL; | |
1241 | } | |
ee91ed79 | 1242 | |
dc810e39 | 1243 | if (H_GET_32 (abfd, buffer) == 0xffff0000) |
17505c5c | 1244 | return pe_ILF_object_p (abfd); |
ee91ed79 | 1245 | |
dc810e39 AM |
1246 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 |
1247 | || bfd_bread (&dos_hdr, (bfd_size_type) sizeof (dos_hdr), abfd) | |
15e0ecd9 | 1248 | != sizeof (dos_hdr)) |
cb665cd3 NC |
1249 | { |
1250 | if (bfd_get_error () != bfd_error_system_call) | |
1251 | bfd_set_error (bfd_error_wrong_format); | |
1252 | return NULL; | |
1253 | } | |
1254 | ||
15e0ecd9 L |
1255 | /* There are really two magic numbers involved; the magic number |
1256 | that says this is a NT executable (PEI) and the magic number that | |
1257 | determines the architecture. The former is DOSMAGIC, stored in | |
1258 | the e_magic field. The latter is stored in the f_magic field. | |
1259 | If the NT magic number isn't valid, the architecture magic number | |
1260 | could be mimicked by some other field (specifically, the number | |
1261 | of relocs in section 3). Since this routine can only be called | |
1262 | correctly for a PEI file, check the e_magic number here, and, if | |
1263 | it doesn't match, clobber the f_magic number so that we don't get | |
1264 | a false match. */ | |
dc810e39 | 1265 | if (H_GET_16 (abfd, dos_hdr.e_magic) != DOSMAGIC) |
15e0ecd9 L |
1266 | { |
1267 | bfd_set_error (bfd_error_wrong_format); | |
1268 | return NULL; | |
1269 | } | |
cb665cd3 | 1270 | |
dc810e39 AM |
1271 | offset = H_GET_32 (abfd, dos_hdr.e_lfanew); |
1272 | if (bfd_seek (abfd, offset, SEEK_SET) != 0 | |
1273 | || (bfd_bread (&image_hdr, (bfd_size_type) sizeof (image_hdr), abfd) | |
1274 | != sizeof (image_hdr))) | |
cb665cd3 NC |
1275 | { |
1276 | if (bfd_get_error () != bfd_error_system_call) | |
1277 | bfd_set_error (bfd_error_wrong_format); | |
1278 | return NULL; | |
1279 | } | |
1280 | ||
dc810e39 | 1281 | if (H_GET_32 (abfd, image_hdr.nt_signature) != 0x4550) |
cb665cd3 NC |
1282 | { |
1283 | bfd_set_error (bfd_error_wrong_format); | |
1284 | return NULL; | |
1285 | } | |
ee91ed79 | 1286 | |
cb665cd3 | 1287 | /* Here is the hack. coff_object_p wants to read filhsz bytes to |
15e0ecd9 L |
1288 | pick up the COFF header for PE, see "struct external_PEI_filehdr" |
1289 | in include/coff/pe.h. We adjust so that that will work. */ | |
dc810e39 | 1290 | if (bfd_seek (abfd, (file_ptr) (offset - sizeof (dos_hdr)), SEEK_SET) != 0) |
cb665cd3 NC |
1291 | { |
1292 | if (bfd_get_error () != bfd_error_system_call) | |
1293 | bfd_set_error (bfd_error_wrong_format); | |
1294 | return NULL; | |
1295 | } | |
1296 | ||
1297 | return coff_object_p (abfd); | |
1298 | } | |
1299 | ||
1300 | #define coff_object_p pe_bfd_object_p | |
17505c5c | 1301 | #endif /* COFF_IMAGE_WITH_PE */ |