Commit | Line | Data |
---|---|---|
277d1b5e | 1 | /* Support for the generic parts of PE/PEI, for BFD. |
f075ee0c | 2 | Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
99ad8390 | 3 | 2005, 2006 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 | |
3e110533 | 20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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 | ||
7920ce38 | 58 | static bfd_boolean (*pe_saved_coff_bfd_print_private_bfd_data) (bfd *, void *) = |
277d1b5e ILT |
59 | #ifndef coff_bfd_print_private_bfd_data |
60 | NULL; | |
252b5132 | 61 | #else |
277d1b5e ILT |
62 | coff_bfd_print_private_bfd_data; |
63 | #undef coff_bfd_print_private_bfd_data | |
252b5132 RH |
64 | #endif |
65 | ||
7920ce38 | 66 | static bfd_boolean pe_print_private_bfd_data (bfd *, void *); |
277d1b5e | 67 | #define coff_bfd_print_private_bfd_data pe_print_private_bfd_data |
252b5132 | 68 | |
7920ce38 | 69 | static bfd_boolean (*pe_saved_coff_bfd_copy_private_bfd_data) (bfd *, bfd *) = |
277d1b5e ILT |
70 | #ifndef coff_bfd_copy_private_bfd_data |
71 | NULL; | |
72 | #else | |
73 | coff_bfd_copy_private_bfd_data; | |
74 | #undef coff_bfd_copy_private_bfd_data | |
252b5132 RH |
75 | #endif |
76 | ||
7920ce38 | 77 | static bfd_boolean pe_bfd_copy_private_bfd_data (bfd *, bfd *); |
277d1b5e | 78 | #define coff_bfd_copy_private_bfd_data pe_bfd_copy_private_bfd_data |
252b5132 | 79 | |
277d1b5e ILT |
80 | #define coff_mkobject pe_mkobject |
81 | #define coff_mkobject_hook pe_mkobject_hook | |
252b5132 | 82 | |
17505c5c NC |
83 | #ifdef COFF_IMAGE_WITH_PE |
84 | /* This structure contains static variables used by the ILF code. */ | |
85 | typedef asection * asection_ptr; | |
86 | ||
87 | typedef struct | |
88 | { | |
89 | bfd * abfd; | |
90 | bfd_byte * data; | |
91 | struct bfd_in_memory * bim; | |
92 | unsigned short magic; | |
ee91ed79 | 93 | |
17505c5c NC |
94 | arelent * reltab; |
95 | unsigned int relcount; | |
96 | ||
97 | coff_symbol_type * sym_cache; | |
98 | coff_symbol_type * sym_ptr; | |
99 | unsigned int sym_index; | |
ee91ed79 | 100 | |
17505c5c NC |
101 | unsigned int * sym_table; |
102 | unsigned int * table_ptr; | |
ee91ed79 | 103 | |
17505c5c NC |
104 | combined_entry_type * native_syms; |
105 | combined_entry_type * native_ptr; | |
106 | ||
11c8a8d1 NC |
107 | coff_symbol_type ** sym_ptr_table; |
108 | coff_symbol_type ** sym_ptr_ptr; | |
ee91ed79 | 109 | |
17505c5c NC |
110 | unsigned int sec_index; |
111 | ||
112 | char * string_table; | |
113 | char * string_ptr; | |
114 | char * end_string_ptr; | |
ee91ed79 | 115 | |
17505c5c NC |
116 | SYMENT * esym_table; |
117 | SYMENT * esym_ptr; | |
118 | ||
119 | struct internal_reloc * int_reltab; | |
120 | } | |
121 | pe_ILF_vars; | |
17505c5c | 122 | #endif /* COFF_IMAGE_WITH_PE */ |
7920ce38 | 123 | \f |
17505c5c | 124 | #ifndef NO_COFF_RELOCS |
252b5132 | 125 | static void |
7920ce38 | 126 | coff_swap_reloc_in (bfd * abfd, void * src, void * dst) |
252b5132 RH |
127 | { |
128 | RELOC *reloc_src = (RELOC *) src; | |
129 | struct internal_reloc *reloc_dst = (struct internal_reloc *) dst; | |
130 | ||
7920ce38 | 131 | reloc_dst->r_vaddr = H_GET_32 (abfd, reloc_src->r_vaddr); |
dc810e39 | 132 | reloc_dst->r_symndx = H_GET_S32 (abfd, reloc_src->r_symndx); |
7920ce38 | 133 | reloc_dst->r_type = H_GET_16 (abfd, reloc_src->r_type); |
252b5132 | 134 | #ifdef SWAP_IN_RELOC_OFFSET |
dc810e39 | 135 | reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET (abfd, reloc_src->r_offset); |
252b5132 RH |
136 | #endif |
137 | } | |
138 | ||
252b5132 | 139 | static unsigned int |
7920ce38 | 140 | coff_swap_reloc_out (bfd * abfd, void * src, void * dst) |
252b5132 | 141 | { |
7920ce38 NC |
142 | struct internal_reloc *reloc_src = (struct internal_reloc *) src; |
143 | struct external_reloc *reloc_dst = (struct external_reloc *) dst; | |
144 | ||
dc810e39 AM |
145 | H_PUT_32 (abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr); |
146 | H_PUT_32 (abfd, reloc_src->r_symndx, reloc_dst->r_symndx); | |
dc810e39 | 147 | H_PUT_16 (abfd, reloc_src->r_type, reloc_dst->r_type); |
252b5132 | 148 | |
7920ce38 | 149 | #ifdef SWAP_OUT_RELOC_OFFSET |
dc810e39 | 150 | SWAP_OUT_RELOC_OFFSET (abfd, reloc_src->r_offset, reloc_dst->r_offset); |
252b5132 RH |
151 | #endif |
152 | #ifdef SWAP_OUT_RELOC_EXTRA | |
7920ce38 | 153 | SWAP_OUT_RELOC_EXTRA (abfd, reloc_src, reloc_dst); |
252b5132 RH |
154 | #endif |
155 | return RELSZ; | |
156 | } | |
17505c5c | 157 | #endif /* not NO_COFF_RELOCS */ |
252b5132 RH |
158 | |
159 | static void | |
7920ce38 | 160 | coff_swap_filehdr_in (bfd * abfd, void * src, void * dst) |
252b5132 RH |
161 | { |
162 | FILHDR *filehdr_src = (FILHDR *) src; | |
163 | struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst; | |
252b5132 | 164 | |
7920ce38 NC |
165 | filehdr_dst->f_magic = H_GET_16 (abfd, filehdr_src->f_magic); |
166 | filehdr_dst->f_nscns = H_GET_16 (abfd, filehdr_src->f_nscns); | |
167 | filehdr_dst->f_timdat = H_GET_32 (abfd, filehdr_src->f_timdat); | |
168 | filehdr_dst->f_nsyms = H_GET_32 (abfd, filehdr_src->f_nsyms); | |
169 | filehdr_dst->f_flags = H_GET_16 (abfd, filehdr_src->f_flags); | |
dc810e39 | 170 | filehdr_dst->f_symptr = H_GET_32 (abfd, filehdr_src->f_symptr); |
252b5132 RH |
171 | |
172 | /* Other people's tools sometimes generate headers with an nsyms but | |
173 | a zero symptr. */ | |
174 | if (filehdr_dst->f_nsyms != 0 && filehdr_dst->f_symptr == 0) | |
175 | { | |
176 | filehdr_dst->f_nsyms = 0; | |
177 | filehdr_dst->f_flags |= F_LSYMS; | |
178 | } | |
179 | ||
dc810e39 | 180 | filehdr_dst->f_opthdr = H_GET_16 (abfd, filehdr_src-> f_opthdr); |
252b5132 RH |
181 | } |
182 | ||
183 | #ifdef COFF_IMAGE_WITH_PE | |
cbff5e0d | 184 | # define coff_swap_filehdr_out _bfd_XXi_only_swap_filehdr_out |
99ad8390 NC |
185 | #elif defined COFF_WITH_pex64 |
186 | # define coff_swap_filehdr_out _bfd_pex64_only_swap_filehdr_out | |
187 | #elif defined COFF_WITH_pep | |
188 | # define coff_swap_filehdr_out _bfd_pep_only_swap_filehdr_out | |
252b5132 | 189 | #else |
cbff5e0d | 190 | # define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out |
252b5132 | 191 | #endif |
252b5132 | 192 | |
252b5132 | 193 | static void |
7920ce38 | 194 | coff_swap_scnhdr_in (bfd * abfd, void * ext, void * in) |
252b5132 RH |
195 | { |
196 | SCNHDR *scnhdr_ext = (SCNHDR *) ext; | |
197 | struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in; | |
198 | ||
7920ce38 NC |
199 | memcpy (scnhdr_int->s_name, scnhdr_ext->s_name, sizeof (scnhdr_int->s_name)); |
200 | ||
201 | scnhdr_int->s_vaddr = GET_SCNHDR_VADDR (abfd, scnhdr_ext->s_vaddr); | |
202 | scnhdr_int->s_paddr = GET_SCNHDR_PADDR (abfd, scnhdr_ext->s_paddr); | |
203 | scnhdr_int->s_size = GET_SCNHDR_SIZE (abfd, scnhdr_ext->s_size); | |
204 | scnhdr_int->s_scnptr = GET_SCNHDR_SCNPTR (abfd, scnhdr_ext->s_scnptr); | |
205 | scnhdr_int->s_relptr = GET_SCNHDR_RELPTR (abfd, scnhdr_ext->s_relptr); | |
dc810e39 | 206 | scnhdr_int->s_lnnoptr = GET_SCNHDR_LNNOPTR (abfd, scnhdr_ext->s_lnnoptr); |
7920ce38 | 207 | scnhdr_int->s_flags = H_GET_32 (abfd, scnhdr_ext->s_flags); |
252b5132 | 208 | |
cb43721d ILT |
209 | /* MS handles overflow of line numbers by carrying into the reloc |
210 | field (it appears). Since it's supposed to be zero for PE | |
211 | *IMAGE* format, that's safe. This is still a bit iffy. */ | |
212 | #ifdef COFF_IMAGE_WITH_PE | |
dc810e39 AM |
213 | scnhdr_int->s_nlnno = (H_GET_16 (abfd, scnhdr_ext->s_nlnno) |
214 | + (H_GET_16 (abfd, scnhdr_ext->s_nreloc) << 16)); | |
cb43721d ILT |
215 | scnhdr_int->s_nreloc = 0; |
216 | #else | |
dc810e39 AM |
217 | scnhdr_int->s_nreloc = H_GET_16 (abfd, scnhdr_ext->s_nreloc); |
218 | scnhdr_int->s_nlnno = H_GET_16 (abfd, scnhdr_ext->s_nlnno); | |
cb43721d | 219 | #endif |
252b5132 | 220 | |
ee91ed79 | 221 | if (scnhdr_int->s_vaddr != 0) |
252b5132 RH |
222 | { |
223 | scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase; | |
99ad8390 NC |
224 | /* Do not cut upper 32-bits for 64-bit vma. */ |
225 | #ifndef COFF_WITH_pex64 | |
252b5132 | 226 | scnhdr_int->s_vaddr &= 0xffffffff; |
99ad8390 | 227 | #endif |
252b5132 | 228 | } |
e166a60f | 229 | |
17505c5c | 230 | #ifndef COFF_NO_HACK_SCNHDR_SIZE |
a3476bef NC |
231 | /* If this section holds uninitialized data and is from an object file |
232 | or from an executable image that has not initialized the field, | |
c9ac8978 NC |
233 | or if the image is an executable file and the physical size is padded, |
234 | use the virtual size (stored in s_paddr) instead. */ | |
a3476bef NC |
235 | if (scnhdr_int->s_paddr > 0 |
236 | && (((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0 | |
c9ac8978 NC |
237 | && (! bfd_pe_executable_p (abfd) || scnhdr_int->s_size == 0)) |
238 | || (bfd_pe_executable_p (abfd) && scnhdr_int->s_size > scnhdr_int->s_paddr))) | |
7920ce38 NC |
239 | /* This code used to set scnhdr_int->s_paddr to 0. However, |
240 | coff_set_alignment_hook stores s_paddr in virt_size, which | |
241 | only works if it correctly holds the virtual size of the | |
242 | section. */ | |
243 | scnhdr_int->s_size = scnhdr_int->s_paddr; | |
17505c5c | 244 | #endif |
252b5132 RH |
245 | } |
246 | ||
b34976b6 | 247 | static bfd_boolean |
7920ce38 | 248 | pe_mkobject (bfd * abfd) |
252b5132 RH |
249 | { |
250 | pe_data_type *pe; | |
dc810e39 AM |
251 | bfd_size_type amt = sizeof (pe_data_type); |
252 | ||
253 | abfd->tdata.pe_obj_data = (struct pe_tdata *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
254 | |
255 | if (abfd->tdata.pe_obj_data == 0) | |
b34976b6 | 256 | return FALSE; |
252b5132 RH |
257 | |
258 | pe = pe_data (abfd); | |
259 | ||
260 | pe->coff.pe = 1; | |
277d1b5e ILT |
261 | |
262 | /* in_reloc_p is architecture dependent. */ | |
252b5132 | 263 | pe->in_reloc_p = in_reloc_p; |
cbff5e0d DD |
264 | |
265 | #ifdef PEI_FORCE_MINIMUM_ALIGNMENT | |
266 | pe->force_minimum_alignment = 1; | |
267 | #endif | |
268 | #ifdef PEI_TARGET_SUBSYSTEM | |
269 | pe->target_subsystem = PEI_TARGET_SUBSYSTEM; | |
270 | #endif | |
271 | ||
b34976b6 | 272 | return TRUE; |
252b5132 RH |
273 | } |
274 | ||
275 | /* Create the COFF backend specific information. */ | |
7920ce38 NC |
276 | |
277 | static void * | |
278 | pe_mkobject_hook (bfd * abfd, | |
279 | void * filehdr, | |
280 | void * aouthdr ATTRIBUTE_UNUSED) | |
252b5132 RH |
281 | { |
282 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
283 | pe_data_type *pe; | |
284 | ||
82e51918 | 285 | if (! pe_mkobject (abfd)) |
252b5132 RH |
286 | return NULL; |
287 | ||
288 | pe = pe_data (abfd); | |
289 | pe->coff.sym_filepos = internal_f->f_symptr; | |
290 | /* These members communicate important constants about the symbol | |
291 | table to GDB's symbol-reading code. These `constants' | |
292 | unfortunately vary among coff implementations... */ | |
293 | pe->coff.local_n_btmask = N_BTMASK; | |
294 | pe->coff.local_n_btshft = N_BTSHFT; | |
295 | pe->coff.local_n_tmask = N_TMASK; | |
296 | pe->coff.local_n_tshift = N_TSHIFT; | |
297 | pe->coff.local_symesz = SYMESZ; | |
298 | pe->coff.local_auxesz = AUXESZ; | |
299 | pe->coff.local_linesz = LINESZ; | |
300 | ||
1135238b ILT |
301 | pe->coff.timestamp = internal_f->f_timdat; |
302 | ||
252b5132 RH |
303 | obj_raw_syment_count (abfd) = |
304 | obj_conv_table_size (abfd) = | |
305 | internal_f->f_nsyms; | |
306 | ||
307 | pe->real_flags = internal_f->f_flags; | |
308 | ||
309 | if ((internal_f->f_flags & F_DLL) != 0) | |
310 | pe->dll = 1; | |
311 | ||
4cfec37b ILT |
312 | if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) |
313 | abfd->flags |= HAS_DEBUG; | |
314 | ||
252b5132 | 315 | #ifdef COFF_IMAGE_WITH_PE |
ee91ed79 | 316 | if (aouthdr) |
7920ce38 | 317 | pe->pe_opthdr = ((struct internal_aouthdr *) aouthdr)->pe; |
252b5132 RH |
318 | #endif |
319 | ||
ee91ed79 | 320 | #ifdef ARM |
252b5132 RH |
321 | if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) |
322 | coff_data (abfd) ->flags = 0; | |
323 | #endif | |
ee91ed79 | 324 | |
7920ce38 | 325 | return (void *) pe; |
252b5132 RH |
326 | } |
327 | ||
b34976b6 | 328 | static bfd_boolean |
7920ce38 | 329 | pe_print_private_bfd_data (bfd *abfd, void * vfile) |
277d1b5e ILT |
330 | { |
331 | FILE *file = (FILE *) vfile; | |
332 | ||
cbff5e0d | 333 | if (!_bfd_XX_print_private_bfd_data_common (abfd, vfile)) |
b34976b6 | 334 | return FALSE; |
252b5132 | 335 | |
7920ce38 NC |
336 | if (pe_saved_coff_bfd_print_private_bfd_data == NULL) |
337 | return TRUE; | |
277d1b5e | 338 | |
7920ce38 | 339 | fputc ('\n', file); |
277d1b5e | 340 | |
7920ce38 | 341 | return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile); |
277d1b5e | 342 | } |
252b5132 RH |
343 | |
344 | /* Copy any private info we understand from the input bfd | |
345 | to the output bfd. */ | |
346 | ||
b34976b6 | 347 | static bfd_boolean |
7920ce38 | 348 | pe_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
252b5132 | 349 | { |
5c9c6a54 NC |
350 | /* PR binutils/716: Copy the large address aware flag. |
351 | XXX: Should we be copying other flags or other fields in the pe_data() | |
352 | structure ? */ | |
353 | if (pe_data (obfd) != NULL | |
354 | && pe_data (ibfd) != NULL | |
355 | && pe_data (ibfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE) | |
356 | pe_data (obfd)->real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE; | |
357 | ||
cbff5e0d | 358 | if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd, obfd)) |
b34976b6 | 359 | return FALSE; |
252b5132 RH |
360 | |
361 | if (pe_saved_coff_bfd_copy_private_bfd_data) | |
362 | return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd); | |
252b5132 | 363 | |
b34976b6 | 364 | return TRUE; |
252b5132 RH |
365 | } |
366 | ||
277d1b5e | 367 | #define coff_bfd_copy_private_section_data \ |
cbff5e0d | 368 | _bfd_XX_bfd_copy_private_section_data |
7d2b58d6 | 369 | |
cbff5e0d | 370 | #define coff_get_symbol_info _bfd_XX_get_symbol_info |
cb665cd3 | 371 | |
b1f10154 | 372 | #ifdef COFF_IMAGE_WITH_PE |
17505c5c NC |
373 | \f |
374 | /* Code to handle Microsoft's Image Library Format. | |
375 | Also known as LINK6 format. | |
ee91ed79 | 376 | Documentation about this format can be found at: |
17505c5c NC |
377 | |
378 | http://msdn.microsoft.com/library/specs/pecoff_section8.htm */ | |
379 | ||
380 | /* The following constants specify the sizes of the various data | |
381 | structures that we have to create in order to build a bfd describing | |
382 | an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6 | |
383 | and SIZEOF_IDATA7 below is to allow for the possibility that we might | |
384 | need a padding byte in order to ensure 16 bit alignment for the section's | |
385 | contents. | |
386 | ||
387 | The value for SIZEOF_ILF_STRINGS is computed as follows: | |
388 | ||
389 | There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters | |
11c8a8d1 | 390 | per symbol for their names (longest section name is .idata$x). |
17505c5c NC |
391 | |
392 | There will be two symbols for the imported value, one the symbol name | |
393 | and one with _imp__ prefixed. Allowing for the terminating nul's this | |
11c8a8d1 | 394 | is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll). |
17505c5c NC |
395 | |
396 | The strings in the string table must start STRING__SIZE_SIZE bytes into | |
397 | the table in order to for the string lookup code in coffgen/coffcode to | |
398 | work. */ | |
399 | #define NUM_ILF_RELOCS 8 | |
400 | #define NUM_ILF_SECTIONS 6 | |
401 | #define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS) | |
ee91ed79 | 402 | |
7920ce38 NC |
403 | #define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache)) |
404 | #define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table)) | |
405 | #define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms)) | |
11c8a8d1 | 406 | #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table)) |
7920ce38 NC |
407 | #define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table)) |
408 | #define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab)) | |
409 | #define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab)) | |
410 | #define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \ | |
11c8a8d1 NC |
411 | + 21 + strlen (source_dll) \ |
412 | + NUM_ILF_SECTIONS * 9 \ | |
413 | + STRING_SIZE_SIZE) | |
17505c5c | 414 | #define SIZEOF_IDATA2 (5 * 4) |
99ad8390 NC |
415 | |
416 | /* For PEx64 idata4 & 5 have thumb size of 8 bytes. */ | |
417 | #ifdef COFF_WITH_pex64 | |
418 | #define SIZEOF_IDATA4 (2 * 4) | |
419 | #define SIZEOF_IDATA5 (2 * 4) | |
420 | #else | |
17505c5c NC |
421 | #define SIZEOF_IDATA4 (1 * 4) |
422 | #define SIZEOF_IDATA5 (1 * 4) | |
99ad8390 NC |
423 | #endif |
424 | ||
17505c5c NC |
425 | #define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1) |
426 | #define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1) | |
427 | #define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata)) | |
ee91ed79 | 428 | |
17505c5c NC |
429 | #define ILF_DATA_SIZE \ |
430 | sizeof (* vars.bim) \ | |
431 | + SIZEOF_ILF_SYMS \ | |
432 | + SIZEOF_ILF_SYM_TABLE \ | |
433 | + SIZEOF_ILF_NATIVE_SYMS \ | |
11c8a8d1 | 434 | + SIZEOF_ILF_SYM_PTR_TABLE \ |
17505c5c NC |
435 | + SIZEOF_ILF_EXT_SYMS \ |
436 | + SIZEOF_ILF_RELOCS \ | |
437 | + SIZEOF_ILF_INT_RELOCS \ | |
438 | + SIZEOF_ILF_STRINGS \ | |
439 | + SIZEOF_IDATA2 \ | |
440 | + SIZEOF_IDATA4 \ | |
441 | + SIZEOF_IDATA5 \ | |
442 | + SIZEOF_IDATA6 \ | |
443 | + SIZEOF_IDATA7 \ | |
444 | + SIZEOF_ILF_SECTIONS \ | |
445 | + MAX_TEXT_SECTION_SIZE | |
446 | ||
17505c5c | 447 | /* Create an empty relocation against the given symbol. */ |
7920ce38 | 448 | |
17505c5c | 449 | static void |
7920ce38 NC |
450 | pe_ILF_make_a_symbol_reloc (pe_ILF_vars * vars, |
451 | bfd_vma address, | |
452 | bfd_reloc_code_real_type reloc, | |
453 | struct bfd_symbol ** sym, | |
454 | unsigned int sym_index) | |
17505c5c NC |
455 | { |
456 | arelent * entry; | |
457 | struct internal_reloc * internal; | |
458 | ||
459 | entry = vars->reltab + vars->relcount; | |
460 | internal = vars->int_reltab + vars->relcount; | |
ee91ed79 | 461 | |
17505c5c NC |
462 | entry->address = address; |
463 | entry->addend = 0; | |
464 | entry->howto = bfd_reloc_type_lookup (vars->abfd, reloc); | |
11c8a8d1 | 465 | entry->sym_ptr_ptr = sym; |
17505c5c NC |
466 | |
467 | internal->r_vaddr = address; | |
11c8a8d1 | 468 | internal->r_symndx = sym_index; |
17505c5c | 469 | internal->r_type = entry->howto->type; |
ee91ed79 | 470 | |
17505c5c | 471 | vars->relcount ++; |
ee91ed79 | 472 | |
17505c5c NC |
473 | BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS); |
474 | } | |
475 | ||
11c8a8d1 | 476 | /* Create an empty relocation against the given section. */ |
7920ce38 | 477 | |
11c8a8d1 NC |
478 | static void |
479 | pe_ILF_make_a_reloc (pe_ILF_vars * vars, | |
480 | bfd_vma address, | |
481 | bfd_reloc_code_real_type reloc, | |
482 | asection_ptr sec) | |
483 | { | |
484 | pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr, | |
485 | coff_section_data (vars->abfd, sec)->i); | |
486 | } | |
487 | ||
17505c5c | 488 | /* Move the queued relocs into the given section. */ |
7920ce38 | 489 | |
17505c5c NC |
490 | static void |
491 | pe_ILF_save_relocs (pe_ILF_vars * vars, | |
492 | asection_ptr sec) | |
493 | { | |
494 | /* Make sure that there is somewhere to store the internal relocs. */ | |
495 | if (coff_section_data (vars->abfd, sec) == NULL) | |
496 | /* We should probably return an error indication here. */ | |
497 | abort (); | |
498 | ||
499 | coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab; | |
b34976b6 | 500 | coff_section_data (vars->abfd, sec)->keep_relocs = TRUE; |
17505c5c NC |
501 | |
502 | sec->relocation = vars->reltab; | |
503 | sec->reloc_count = vars->relcount; | |
504 | sec->flags |= SEC_RELOC; | |
505 | ||
506 | vars->reltab += vars->relcount; | |
507 | vars->int_reltab += vars->relcount; | |
508 | vars->relcount = 0; | |
509 | ||
dc810e39 | 510 | BFD_ASSERT ((bfd_byte *) vars->int_reltab < (bfd_byte *) vars->string_table); |
17505c5c NC |
511 | } |
512 | ||
513 | /* Create a global symbol and add it to the relevant tables. */ | |
7920ce38 | 514 | |
17505c5c NC |
515 | static void |
516 | pe_ILF_make_a_symbol (pe_ILF_vars * vars, | |
517 | const char * prefix, | |
518 | const char * symbol_name, | |
519 | asection_ptr section, | |
520 | flagword extra_flags) | |
521 | { | |
522 | coff_symbol_type * sym; | |
523 | combined_entry_type * ent; | |
524 | SYMENT * esym; | |
525 | unsigned short sclass; | |
526 | ||
527 | if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 528 | sclass = C_STAT; |
17505c5c NC |
529 | else |
530 | sclass = C_EXT; | |
ee91ed79 KH |
531 | |
532 | #ifdef THUMBPEMAGIC | |
17505c5c NC |
533 | if (vars->magic == THUMBPEMAGIC) |
534 | { | |
535 | if (extra_flags & BSF_FUNCTION) | |
536 | sclass = C_THUMBEXTFUNC; | |
537 | else if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 538 | sclass = C_THUMBSTAT; |
17505c5c NC |
539 | else |
540 | sclass = C_THUMBEXT; | |
541 | } | |
542 | #endif | |
543 | ||
544 | BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS); | |
ee91ed79 | 545 | |
17505c5c NC |
546 | sym = vars->sym_ptr; |
547 | ent = vars->native_ptr; | |
548 | esym = vars->esym_ptr; | |
549 | ||
550 | /* Copy the symbol's name into the string table. */ | |
551 | sprintf (vars->string_ptr, "%s%s", prefix, symbol_name); | |
552 | ||
10821322 NC |
553 | if (section == NULL) |
554 | section = (asection_ptr) & bfd_und_section; | |
ee91ed79 | 555 | |
17505c5c | 556 | /* Initialise the external symbol. */ |
dc810e39 AM |
557 | H_PUT_32 (vars->abfd, vars->string_ptr - vars->string_table, |
558 | esym->e.e.e_offset); | |
559 | H_PUT_16 (vars->abfd, section->target_index, esym->e_scnum); | |
17505c5c NC |
560 | esym->e_sclass[0] = sclass; |
561 | ||
562 | /* The following initialisations are unnecessary - the memory is | |
563 | zero initialised. They are just kept here as reminders. */ | |
ee91ed79 | 564 | |
17505c5c NC |
565 | /* Initialise the internal symbol structure. */ |
566 | ent->u.syment.n_sclass = sclass; | |
10821322 | 567 | ent->u.syment.n_scnum = section->target_index; |
17505c5c | 568 | ent->u.syment._n._n_n._n_offset = (long) sym; |
ee91ed79 | 569 | |
17505c5c NC |
570 | sym->symbol.the_bfd = vars->abfd; |
571 | sym->symbol.name = vars->string_ptr; | |
572 | sym->symbol.flags = BSF_EXPORT | BSF_GLOBAL | extra_flags; | |
573 | sym->symbol.section = section; | |
574 | sym->native = ent; | |
ee91ed79 | 575 | |
17505c5c | 576 | * vars->table_ptr = vars->sym_index; |
11c8a8d1 | 577 | * vars->sym_ptr_ptr = sym; |
ee91ed79 | 578 | |
17505c5c NC |
579 | /* Adjust pointers for the next symbol. */ |
580 | vars->sym_index ++; | |
581 | vars->sym_ptr ++; | |
11c8a8d1 | 582 | vars->sym_ptr_ptr ++; |
17505c5c NC |
583 | vars->table_ptr ++; |
584 | vars->native_ptr ++; | |
585 | vars->esym_ptr ++; | |
11c8a8d1 | 586 | vars->string_ptr += strlen (symbol_name) + strlen (prefix) + 1; |
17505c5c NC |
587 | |
588 | BFD_ASSERT (vars->string_ptr < vars->end_string_ptr); | |
589 | } | |
590 | ||
591 | /* Create a section. */ | |
7920ce38 | 592 | |
17505c5c NC |
593 | static asection_ptr |
594 | pe_ILF_make_a_section (pe_ILF_vars * vars, | |
595 | const char * name, | |
596 | unsigned int size, | |
597 | flagword extra_flags) | |
598 | { | |
599 | asection_ptr sec; | |
600 | flagword flags; | |
ee91ed79 | 601 | |
17505c5c NC |
602 | sec = bfd_make_section_old_way (vars->abfd, name); |
603 | if (sec == NULL) | |
604 | return NULL; | |
ee91ed79 | 605 | |
17505c5c | 606 | flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY; |
ee91ed79 | 607 | |
17505c5c | 608 | bfd_set_section_flags (vars->abfd, sec, flags | extra_flags); |
ee91ed79 | 609 | |
17505c5c | 610 | bfd_set_section_alignment (vars->abfd, sec, 2); |
ee91ed79 | 611 | |
17505c5c NC |
612 | /* Check that we will not run out of space. */ |
613 | BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 614 | |
17505c5c NC |
615 | /* Set the section size and contents. The actual |
616 | contents are filled in by our parent. */ | |
dc810e39 | 617 | bfd_set_section_size (vars->abfd, sec, (bfd_size_type) size); |
17505c5c NC |
618 | sec->contents = vars->data; |
619 | sec->target_index = vars->sec_index ++; | |
620 | ||
621 | /* Advance data pointer in the vars structure. */ | |
622 | vars->data += size; | |
ee91ed79 | 623 | |
17505c5c NC |
624 | /* Skip the padding byte if it was not needed. |
625 | The logic here is that if the string length is odd, | |
626 | then the entire string length, including the null byte, | |
627 | is even and so the extra, padding byte, is not needed. */ | |
628 | if (size & 1) | |
629 | vars->data --; | |
ee91ed79 | 630 | |
17505c5c NC |
631 | /* Create a coff_section_tdata structure for our use. */ |
632 | sec->used_by_bfd = (struct coff_section_tdata *) vars->data; | |
633 | vars->data += sizeof (struct coff_section_tdata); | |
634 | ||
635 | BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 636 | |
17505c5c NC |
637 | /* Create a symbol to refer to this section. */ |
638 | pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL); | |
639 | ||
11c8a8d1 | 640 | /* Cache the index to the symbol in the coff_section_data structure. */ |
17505c5c | 641 | coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1; |
ee91ed79 | 642 | |
17505c5c NC |
643 | return sec; |
644 | } | |
645 | ||
646 | /* This structure contains the code that goes into the .text section | |
647 | in order to perform a jump into the DLL lookup table. The entries | |
648 | in the table are index by the magic number used to represent the | |
649 | machine type in the PE file. The contents of the data[] arrays in | |
650 | these entries are stolen from the jtab[] arrays in ld/pe-dll.c. | |
651 | The SIZE field says how many bytes in the DATA array are actually | |
652 | used. The OFFSET field says where in the data array the address | |
653 | of the .idata$5 section should be placed. */ | |
654 | #define MAX_TEXT_SECTION_SIZE 32 | |
655 | ||
656 | typedef struct | |
657 | { | |
658 | unsigned short magic; | |
659 | unsigned char data[MAX_TEXT_SECTION_SIZE]; | |
660 | unsigned int size; | |
661 | unsigned int offset; | |
662 | } | |
663 | jump_table; | |
664 | ||
86033394 | 665 | static jump_table jtab[] = |
17505c5c NC |
666 | { |
667 | #ifdef I386MAGIC | |
668 | { I386MAGIC, | |
669 | { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, | |
670 | 8, 2 | |
671 | }, | |
672 | #endif | |
ee91ed79 | 673 | |
99ad8390 NC |
674 | #ifdef AMD64MAGIC |
675 | { AMD64MAGIC, | |
676 | { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, | |
677 | 8, 2 | |
678 | }, | |
679 | #endif | |
680 | ||
17505c5c | 681 | #ifdef MC68MAGIC |
99ad8390 NC |
682 | { MC68MAGIC, |
683 | { /* XXX fill me in */ }, | |
684 | 0, 0 | |
685 | }, | |
17505c5c | 686 | #endif |
99ad8390 | 687 | |
17505c5c NC |
688 | #ifdef MIPS_ARCH_MAGIC_WINCE |
689 | { MIPS_ARCH_MAGIC_WINCE, | |
690 | { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, | |
691 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 }, | |
692 | 16, 0 | |
693 | }, | |
694 | #endif | |
ee91ed79 | 695 | |
17505c5c NC |
696 | #ifdef SH_ARCH_MAGIC_WINCE |
697 | { SH_ARCH_MAGIC_WINCE, | |
698 | { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, | |
699 | 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 }, | |
700 | 12, 8 | |
701 | }, | |
702 | #endif | |
ee91ed79 | 703 | |
17505c5c NC |
704 | #ifdef ARMPEMAGIC |
705 | { ARMPEMAGIC, | |
706 | { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0, | |
707 | 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00}, | |
708 | 12, 8 | |
709 | }, | |
710 | #endif | |
ee91ed79 | 711 | |
17505c5c NC |
712 | #ifdef THUMBPEMAGIC |
713 | { THUMBPEMAGIC, | |
714 | { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46, | |
715 | 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 }, | |
716 | 16, 12 | |
717 | }, | |
718 | #endif | |
719 | { 0, { 0 }, 0, 0 } | |
720 | }; | |
721 | ||
722 | #ifndef NUM_ENTRIES | |
723 | #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0]) | |
724 | #endif | |
725 | ||
726 | /* Build a full BFD from the information supplied in a ILF object. */ | |
7920ce38 | 727 | |
b34976b6 | 728 | static bfd_boolean |
17505c5c | 729 | pe_ILF_build_a_bfd (bfd * abfd, |
dc810e39 | 730 | unsigned int magic, |
f075ee0c AM |
731 | char * symbol_name, |
732 | char * source_dll, | |
17505c5c NC |
733 | unsigned int ordinal, |
734 | unsigned int types) | |
ee91ed79 | 735 | { |
17505c5c NC |
736 | bfd_byte * ptr; |
737 | pe_ILF_vars vars; | |
738 | struct internal_filehdr internal_f; | |
739 | unsigned int import_type; | |
740 | unsigned int import_name_type; | |
11c8a8d1 NC |
741 | asection_ptr id4, id5, id6 = NULL, text = NULL; |
742 | coff_symbol_type ** imp_sym; | |
743 | unsigned int imp_index; | |
17505c5c | 744 | |
17505c5c NC |
745 | /* Decode and verify the types field of the ILF structure. */ |
746 | import_type = types & 0x3; | |
747 | import_name_type = (types & 0x1c) >> 2; | |
748 | ||
749 | switch (import_type) | |
750 | { | |
751 | case IMPORT_CODE: | |
752 | case IMPORT_DATA: | |
753 | break; | |
ee91ed79 | 754 | |
17505c5c NC |
755 | case IMPORT_CONST: |
756 | /* XXX code yet to be written. */ | |
d003868e AM |
757 | _bfd_error_handler (_("%B: Unhandled import type; %x"), |
758 | abfd, import_type); | |
b34976b6 | 759 | return FALSE; |
ee91ed79 | 760 | |
17505c5c | 761 | default: |
d003868e AM |
762 | _bfd_error_handler (_("%B: Unrecognised import type; %x"), |
763 | abfd, import_type); | |
b34976b6 | 764 | return FALSE; |
17505c5c NC |
765 | } |
766 | ||
767 | switch (import_name_type) | |
768 | { | |
769 | case IMPORT_ORDINAL: | |
770 | case IMPORT_NAME: | |
771 | case IMPORT_NAME_NOPREFIX: | |
772 | case IMPORT_NAME_UNDECORATE: | |
773 | break; | |
ee91ed79 | 774 | |
17505c5c | 775 | default: |
d003868e AM |
776 | _bfd_error_handler (_("%B: Unrecognised import name type; %x"), |
777 | abfd, import_name_type); | |
b34976b6 | 778 | return FALSE; |
17505c5c NC |
779 | } |
780 | ||
781 | /* Initialise local variables. | |
ee91ed79 | 782 | |
17505c5c NC |
783 | Note these are kept in a structure rather than being |
784 | declared as statics since bfd frowns on global variables. | |
ee91ed79 | 785 | |
17505c5c NC |
786 | We are going to construct the contents of the BFD in memory, |
787 | so allocate all the space that we will need right now. */ | |
dc810e39 | 788 | ptr = bfd_zalloc (abfd, (bfd_size_type) ILF_DATA_SIZE); |
17505c5c | 789 | if (ptr == NULL) |
b34976b6 | 790 | return FALSE; |
17505c5c NC |
791 | |
792 | /* Create a bfd_in_memory structure. */ | |
793 | vars.bim = (struct bfd_in_memory *) ptr; | |
794 | vars.bim->buffer = ptr; | |
795 | vars.bim->size = ILF_DATA_SIZE; | |
796 | ptr += sizeof (* vars.bim); | |
ee91ed79 | 797 | |
17505c5c NC |
798 | /* Initialise the pointers to regions of the memory and the |
799 | other contents of the pe_ILF_vars structure as well. */ | |
800 | vars.sym_cache = (coff_symbol_type *) ptr; | |
801 | vars.sym_ptr = (coff_symbol_type *) ptr; | |
802 | vars.sym_index = 0; | |
803 | ptr += SIZEOF_ILF_SYMS; | |
ee91ed79 | 804 | |
17505c5c NC |
805 | vars.sym_table = (unsigned int *) ptr; |
806 | vars.table_ptr = (unsigned int *) ptr; | |
807 | ptr += SIZEOF_ILF_SYM_TABLE; | |
808 | ||
809 | vars.native_syms = (combined_entry_type *) ptr; | |
810 | vars.native_ptr = (combined_entry_type *) ptr; | |
811 | ptr += SIZEOF_ILF_NATIVE_SYMS; | |
11c8a8d1 NC |
812 | |
813 | vars.sym_ptr_table = (coff_symbol_type **) ptr; | |
814 | vars.sym_ptr_ptr = (coff_symbol_type **) ptr; | |
815 | ptr += SIZEOF_ILF_SYM_PTR_TABLE; | |
ee91ed79 | 816 | |
17505c5c NC |
817 | vars.esym_table = (SYMENT *) ptr; |
818 | vars.esym_ptr = (SYMENT *) ptr; | |
819 | ptr += SIZEOF_ILF_EXT_SYMS; | |
ee91ed79 | 820 | |
17505c5c NC |
821 | vars.reltab = (arelent *) ptr; |
822 | vars.relcount = 0; | |
823 | ptr += SIZEOF_ILF_RELOCS; | |
824 | ||
825 | vars.int_reltab = (struct internal_reloc *) ptr; | |
826 | ptr += SIZEOF_ILF_INT_RELOCS; | |
827 | ||
f075ee0c AM |
828 | vars.string_table = (char *) ptr; |
829 | vars.string_ptr = (char *) ptr + STRING_SIZE_SIZE; | |
17505c5c | 830 | ptr += SIZEOF_ILF_STRINGS; |
f075ee0c | 831 | vars.end_string_ptr = (char *) ptr; |
ee91ed79 | 832 | |
17505c5c NC |
833 | /* The remaining space in bim->buffer is used |
834 | by the pe_ILF_make_a_section() function. */ | |
835 | vars.data = ptr; | |
836 | vars.abfd = abfd; | |
837 | vars.sec_index = 0; | |
838 | vars.magic = magic; | |
ee91ed79 | 839 | |
17505c5c | 840 | /* Create the initial .idata$<n> sections: |
11c8a8d1 | 841 | [.idata$2: Import Directory Table -- not needed] |
17505c5c NC |
842 | .idata$4: Import Lookup Table |
843 | .idata$5: Import Address Table | |
844 | ||
845 | Note we do not create a .idata$3 section as this is | |
846 | created for us by the linker script. */ | |
17505c5c NC |
847 | id4 = pe_ILF_make_a_section (& vars, ".idata$4", SIZEOF_IDATA4, 0); |
848 | id5 = pe_ILF_make_a_section (& vars, ".idata$5", SIZEOF_IDATA5, 0); | |
11c8a8d1 | 849 | if (id4 == NULL || id5 == NULL) |
b34976b6 | 850 | return FALSE; |
ee91ed79 | 851 | |
17505c5c NC |
852 | /* Fill in the contents of these sections. */ |
853 | if (import_name_type == IMPORT_ORDINAL) | |
854 | { | |
855 | if (ordinal == 0) | |
856 | /* XXX - treat as IMPORT_NAME ??? */ | |
857 | abort (); | |
ee91ed79 | 858 | |
99ad8390 NC |
859 | #ifdef COFF_WITH_pex64 |
860 | ((unsigned int *) id4->contents)[0] = ordinal; | |
861 | ((unsigned int *) id4->contents)[1] = 0x80000000; | |
862 | ((unsigned int *) id5->contents)[0] = ordinal; | |
863 | ((unsigned int *) id5->contents)[1] = 0x80000000; | |
864 | #else | |
fc633e5b AM |
865 | * (unsigned int *) id4->contents = ordinal | 0x80000000; |
866 | * (unsigned int *) id5->contents = ordinal | 0x80000000; | |
99ad8390 | 867 | #endif |
17505c5c NC |
868 | } |
869 | else | |
870 | { | |
871 | char * symbol; | |
f67e617a | 872 | unsigned int len; |
ee91ed79 | 873 | |
17505c5c NC |
874 | /* Create .idata$6 - the Hint Name Table. */ |
875 | id6 = pe_ILF_make_a_section (& vars, ".idata$6", SIZEOF_IDATA6, 0); | |
876 | if (id6 == NULL) | |
b34976b6 | 877 | return FALSE; |
17505c5c NC |
878 | |
879 | /* If necessary, trim the import symbol name. */ | |
880 | symbol = symbol_name; | |
881 | ||
cabd4ccc DS |
882 | /* As used by MS compiler, '_', '@', and '?' are alternative |
883 | forms of USER_LABEL_PREFIX, with '?' for c++ mangled names, | |
884 | '@' used for fastcall (in C), '_' everywhere else. Only one | |
885 | of these is used for a symbol. We strip this leading char for | |
886 | IMPORT_NAME_NOPREFIX and IMPORT_NAME_UNDECORATE as per the | |
887 | PE COFF 6.0 spec (section 8.3, Import Name Type). */ | |
888 | ||
17505c5c | 889 | if (import_name_type != IMPORT_NAME) |
87cc7031 | 890 | { |
cabd4ccc DS |
891 | char c = symbol[0]; |
892 | if (c == '_' || c == '@' || c == '?') | |
893 | symbol++; | |
87cc7031 NC |
894 | } |
895 | ||
f67e617a | 896 | len = strlen (symbol); |
17505c5c NC |
897 | if (import_name_type == IMPORT_NAME_UNDECORATE) |
898 | { | |
f67e617a NC |
899 | /* Truncate at the first '@'. */ |
900 | char *at = strchr (symbol, '@'); | |
17505c5c | 901 | |
f67e617a NC |
902 | if (at != NULL) |
903 | len = at - symbol; | |
17505c5c | 904 | } |
ee91ed79 | 905 | |
11c8a8d1 NC |
906 | id6->contents[0] = ordinal & 0xff; |
907 | id6->contents[1] = ordinal >> 8; | |
ee91ed79 | 908 | |
f67e617a NC |
909 | memcpy ((char *) id6->contents + 2, symbol, len); |
910 | id6->contents[len + 2] = '\0'; | |
17505c5c NC |
911 | } |
912 | ||
17505c5c NC |
913 | if (import_name_type != IMPORT_ORDINAL) |
914 | { | |
dc810e39 AM |
915 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6); |
916 | pe_ILF_save_relocs (&vars, id4); | |
ee91ed79 | 917 | |
dc810e39 AM |
918 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6); |
919 | pe_ILF_save_relocs (&vars, id5); | |
17505c5c NC |
920 | } |
921 | ||
922 | /* Create extra sections depending upon the type of import we are dealing with. */ | |
923 | switch (import_type) | |
924 | { | |
925 | int i; | |
ee91ed79 | 926 | |
17505c5c NC |
927 | case IMPORT_CODE: |
928 | /* Create a .text section. | |
929 | First we need to look up its contents in the jump table. */ | |
930 | for (i = NUM_ENTRIES (jtab); i--;) | |
931 | { | |
932 | if (jtab[i].size == 0) | |
933 | continue; | |
934 | if (jtab[i].magic == magic) | |
935 | break; | |
936 | } | |
937 | /* If we did not find a matching entry something is wrong. */ | |
938 | if (i < 0) | |
939 | abort (); | |
940 | ||
941 | /* Create the .text section. */ | |
942 | text = pe_ILF_make_a_section (& vars, ".text", jtab[i].size, SEC_CODE); | |
943 | if (text == NULL) | |
b34976b6 | 944 | return FALSE; |
17505c5c NC |
945 | |
946 | /* Copy in the jump code. */ | |
947 | memcpy (text->contents, jtab[i].data, jtab[i].size); | |
948 | ||
11c8a8d1 NC |
949 | /* Create an import symbol. */ |
950 | pe_ILF_make_a_symbol (& vars, "__imp_", symbol_name, id5, 0); | |
951 | imp_sym = vars.sym_ptr_ptr - 1; | |
952 | imp_index = vars.sym_index - 1; | |
ee91ed79 | 953 | |
17505c5c | 954 | /* Create a reloc for the data in the text section. */ |
ee91ed79 | 955 | #ifdef MIPS_ARCH_MAGIC_WINCE |
17505c5c NC |
956 | if (magic == MIPS_ARCH_MAGIC_WINCE) |
957 | { | |
dc810e39 | 958 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 0, BFD_RELOC_HI16_S, |
fc0a2244 | 959 | (struct bfd_symbol **) imp_sym, |
dc810e39 AM |
960 | imp_index); |
961 | pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_LO16, text); | |
962 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 4, BFD_RELOC_LO16, | |
fc0a2244 | 963 | (struct bfd_symbol **) imp_sym, |
dc810e39 | 964 | imp_index); |
17505c5c NC |
965 | } |
966 | else | |
967 | #endif | |
dc810e39 AM |
968 | pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) jtab[i].offset, |
969 | BFD_RELOC_32, (asymbol **) imp_sym, | |
970 | imp_index); | |
ee91ed79 | 971 | |
17505c5c NC |
972 | pe_ILF_save_relocs (& vars, text); |
973 | break; | |
974 | ||
975 | case IMPORT_DATA: | |
976 | break; | |
977 | ||
978 | default: | |
979 | /* XXX code not yet written. */ | |
980 | abort (); | |
981 | } | |
ee91ed79 | 982 | |
17505c5c NC |
983 | /* Initialise the bfd. */ |
984 | memset (& internal_f, 0, sizeof (internal_f)); | |
ee91ed79 | 985 | |
17505c5c NC |
986 | internal_f.f_magic = magic; |
987 | internal_f.f_symptr = 0; | |
988 | internal_f.f_nsyms = 0; | |
989 | internal_f.f_flags = F_AR32WR | F_LNNO; /* XXX is this correct ? */ | |
ee91ed79 | 990 | |
dc810e39 | 991 | if ( ! bfd_set_start_address (abfd, (bfd_vma) 0) |
17505c5c | 992 | || ! bfd_coff_set_arch_mach_hook (abfd, & internal_f)) |
b34976b6 | 993 | return FALSE; |
17505c5c | 994 | |
7920ce38 | 995 | if (bfd_coff_mkobject_hook (abfd, (void *) & internal_f, NULL) == NULL) |
b34976b6 | 996 | return FALSE; |
17505c5c NC |
997 | |
998 | coff_data (abfd)->pe = 1; | |
ee91ed79 | 999 | #ifdef THUMBPEMAGIC |
17505c5c NC |
1000 | if (vars.magic == THUMBPEMAGIC) |
1001 | /* Stop some linker warnings about thumb code not supporting interworking. */ | |
1002 | coff_data (abfd)->flags |= F_INTERWORK | F_INTERWORK_SET; | |
1003 | #endif | |
ee91ed79 | 1004 | |
17505c5c NC |
1005 | /* Switch from file contents to memory contents. */ |
1006 | bfd_cache_close (abfd); | |
1007 | ||
7920ce38 | 1008 | abfd->iostream = (void *) vars.bim; |
17505c5c NC |
1009 | abfd->flags |= BFD_IN_MEMORY /* | HAS_LOCALS */; |
1010 | abfd->where = 0; | |
1011 | obj_sym_filepos (abfd) = 0; | |
1012 | ||
1013 | /* Now create a symbol describing the imported value. */ | |
1014 | switch (import_type) | |
1015 | { | |
1016 | case IMPORT_CODE: | |
1017 | pe_ILF_make_a_symbol (& vars, "", symbol_name, text, | |
1018 | BSF_NOT_AT_END | BSF_FUNCTION); | |
ee91ed79 | 1019 | |
11c8a8d1 NC |
1020 | /* Create an import symbol for the DLL, without the |
1021 | .dll suffix. */ | |
f075ee0c | 1022 | ptr = (bfd_byte *) strrchr (source_dll, '.'); |
11c8a8d1 NC |
1023 | if (ptr) |
1024 | * ptr = 0; | |
1025 | pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0); | |
1026 | if (ptr) | |
1027 | * ptr = '.'; | |
17505c5c NC |
1028 | break; |
1029 | ||
1030 | case IMPORT_DATA: | |
11c8a8d1 | 1031 | /* Nothing to do here. */ |
17505c5c | 1032 | break; |
ee91ed79 | 1033 | |
17505c5c NC |
1034 | default: |
1035 | /* XXX code not yet written. */ | |
1036 | abort (); | |
1037 | } | |
1038 | ||
17505c5c NC |
1039 | /* Point the bfd at the symbol table. */ |
1040 | obj_symbols (abfd) = vars.sym_cache; | |
1041 | bfd_get_symcount (abfd) = vars.sym_index; | |
ee91ed79 | 1042 | |
17505c5c NC |
1043 | obj_raw_syments (abfd) = vars.native_syms; |
1044 | obj_raw_syment_count (abfd) = vars.sym_index; | |
1045 | ||
7920ce38 | 1046 | obj_coff_external_syms (abfd) = (void *) vars.esym_table; |
b34976b6 | 1047 | obj_coff_keep_syms (abfd) = TRUE; |
ee91ed79 | 1048 | |
17505c5c NC |
1049 | obj_convert (abfd) = vars.sym_table; |
1050 | obj_conv_table_size (abfd) = vars.sym_index; | |
ee91ed79 | 1051 | |
17505c5c | 1052 | obj_coff_strings (abfd) = vars.string_table; |
b34976b6 | 1053 | obj_coff_keep_strings (abfd) = TRUE; |
17505c5c NC |
1054 | |
1055 | abfd->flags |= HAS_SYMS; | |
1056 | ||
b34976b6 | 1057 | return TRUE; |
17505c5c NC |
1058 | } |
1059 | ||
1060 | /* We have detected a Image Library Format archive element. | |
1061 | Decode the element and return the appropriate target. */ | |
7920ce38 | 1062 | |
cb665cd3 | 1063 | static const bfd_target * |
17505c5c NC |
1064 | pe_ILF_object_p (bfd * abfd) |
1065 | { | |
1066 | bfd_byte buffer[16]; | |
1067 | bfd_byte * ptr; | |
f075ee0c AM |
1068 | char * symbol_name; |
1069 | char * source_dll; | |
17505c5c | 1070 | unsigned int machine; |
dc810e39 | 1071 | bfd_size_type size; |
17505c5c NC |
1072 | unsigned int ordinal; |
1073 | unsigned int types; | |
dc810e39 | 1074 | unsigned int magic; |
ee91ed79 | 1075 | |
17505c5c NC |
1076 | /* Upon entry the first four buyes of the ILF header have |
1077 | already been read. Now read the rest of the header. */ | |
dc810e39 | 1078 | if (bfd_bread (buffer, (bfd_size_type) 16, abfd) != 16) |
17505c5c NC |
1079 | return NULL; |
1080 | ||
1081 | ptr = buffer; | |
ee91ed79 | 1082 | |
17505c5c | 1083 | /* We do not bother to check the version number. |
dc810e39 | 1084 | version = H_GET_16 (abfd, ptr); */ |
17505c5c NC |
1085 | ptr += 2; |
1086 | ||
dc810e39 | 1087 | machine = H_GET_16 (abfd, ptr); |
17505c5c NC |
1088 | ptr += 2; |
1089 | ||
1090 | /* Check that the machine type is recognised. */ | |
1091 | magic = 0; | |
ee91ed79 | 1092 | |
17505c5c NC |
1093 | switch (machine) |
1094 | { | |
1095 | case IMAGE_FILE_MACHINE_UNKNOWN: | |
1096 | case IMAGE_FILE_MACHINE_ALPHA: | |
1097 | case IMAGE_FILE_MACHINE_ALPHA64: | |
1098 | case IMAGE_FILE_MACHINE_IA64: | |
1099 | break; | |
ee91ed79 | 1100 | |
17505c5c NC |
1101 | case IMAGE_FILE_MACHINE_I386: |
1102 | #ifdef I386MAGIC | |
1103 | magic = I386MAGIC; | |
1104 | #endif | |
1105 | break; | |
ee91ed79 | 1106 | |
99ad8390 NC |
1107 | case IMAGE_FILE_MACHINE_AMD64: |
1108 | #ifdef AMD64MAGIC | |
1109 | magic = AMD64MAGIC; | |
1110 | #endif | |
1111 | break; | |
1112 | ||
17505c5c NC |
1113 | case IMAGE_FILE_MACHINE_M68K: |
1114 | #ifdef MC68AGIC | |
1115 | magic = MC68MAGIC; | |
1116 | #endif | |
1117 | break; | |
ee91ed79 | 1118 | |
17505c5c NC |
1119 | case IMAGE_FILE_MACHINE_R3000: |
1120 | case IMAGE_FILE_MACHINE_R4000: | |
1121 | case IMAGE_FILE_MACHINE_R10000: | |
ee91ed79 | 1122 | |
17505c5c NC |
1123 | case IMAGE_FILE_MACHINE_MIPS16: |
1124 | case IMAGE_FILE_MACHINE_MIPSFPU: | |
1125 | case IMAGE_FILE_MACHINE_MIPSFPU16: | |
1126 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
1127 | magic = MIPS_ARCH_MAGIC_WINCE; | |
1128 | #endif | |
1129 | break; | |
ee91ed79 | 1130 | |
17505c5c NC |
1131 | case IMAGE_FILE_MACHINE_SH3: |
1132 | case IMAGE_FILE_MACHINE_SH4: | |
1133 | #ifdef SH_ARCH_MAGIC_WINCE | |
1134 | magic = SH_ARCH_MAGIC_WINCE; | |
1135 | #endif | |
1136 | break; | |
ee91ed79 | 1137 | |
17505c5c NC |
1138 | case IMAGE_FILE_MACHINE_ARM: |
1139 | #ifdef ARMPEMAGIC | |
1140 | magic = ARMPEMAGIC; | |
ee91ed79 | 1141 | #endif |
17505c5c | 1142 | break; |
ee91ed79 | 1143 | |
17505c5c NC |
1144 | case IMAGE_FILE_MACHINE_THUMB: |
1145 | #ifdef THUMBPEMAGIC | |
1146 | { | |
23ccc829 | 1147 | extern const bfd_target TARGET_LITTLE_SYM; |
ee91ed79 | 1148 | |
26bfd1c0 | 1149 | if (abfd->xvec == & TARGET_LITTLE_SYM) |
17505c5c NC |
1150 | magic = THUMBPEMAGIC; |
1151 | } | |
ee91ed79 | 1152 | #endif |
17505c5c | 1153 | break; |
ee91ed79 | 1154 | |
17505c5c NC |
1155 | case IMAGE_FILE_MACHINE_POWERPC: |
1156 | /* We no longer support PowerPC. */ | |
1157 | default: | |
1158 | _bfd_error_handler | |
d003868e AM |
1159 | (_("%B: Unrecognised machine type (0x%x)" |
1160 | " in Import Library Format archive"), | |
1161 | abfd, machine); | |
17505c5c | 1162 | bfd_set_error (bfd_error_malformed_archive); |
ee91ed79 | 1163 | |
17505c5c NC |
1164 | return NULL; |
1165 | break; | |
1166 | } | |
1167 | ||
1168 | if (magic == 0) | |
1169 | { | |
1170 | _bfd_error_handler | |
d003868e AM |
1171 | (_("%B: Recognised but unhandled machine type (0x%x)" |
1172 | " in Import Library Format archive"), | |
1173 | abfd, machine); | |
17505c5c | 1174 | bfd_set_error (bfd_error_wrong_format); |
ee91ed79 | 1175 | |
17505c5c | 1176 | return NULL; |
ee91ed79 | 1177 | } |
17505c5c NC |
1178 | |
1179 | /* We do not bother to check the date. | |
dc810e39 | 1180 | date = H_GET_32 (abfd, ptr); */ |
17505c5c | 1181 | ptr += 4; |
ee91ed79 | 1182 | |
dc810e39 | 1183 | size = H_GET_32 (abfd, ptr); |
17505c5c NC |
1184 | ptr += 4; |
1185 | ||
1186 | if (size == 0) | |
1187 | { | |
1188 | _bfd_error_handler | |
d003868e | 1189 | (_("%B: size field is zero in Import Library Format header"), abfd); |
17505c5c | 1190 | bfd_set_error (bfd_error_malformed_archive); |
ee91ed79 | 1191 | |
17505c5c NC |
1192 | return NULL; |
1193 | } | |
1194 | ||
dc810e39 | 1195 | ordinal = H_GET_16 (abfd, ptr); |
17505c5c NC |
1196 | ptr += 2; |
1197 | ||
dc810e39 | 1198 | types = H_GET_16 (abfd, ptr); |
17505c5c NC |
1199 | /* ptr += 2; */ |
1200 | ||
1201 | /* Now read in the two strings that follow. */ | |
1202 | ptr = bfd_alloc (abfd, size); | |
1203 | if (ptr == NULL) | |
1204 | return NULL; | |
ee91ed79 | 1205 | |
dc810e39 | 1206 | if (bfd_bread (ptr, size, abfd) != size) |
487e54f2 AM |
1207 | { |
1208 | bfd_release (abfd, ptr); | |
1209 | return NULL; | |
1210 | } | |
17505c5c | 1211 | |
f075ee0c AM |
1212 | symbol_name = (char *) ptr; |
1213 | source_dll = symbol_name + strlen (symbol_name) + 1; | |
ee91ed79 | 1214 | |
17505c5c | 1215 | /* Verify that the strings are null terminated. */ |
f075ee0c AM |
1216 | if (ptr[size - 1] != 0 |
1217 | || (bfd_size_type) ((bfd_byte *) source_dll - ptr) >= size) | |
17505c5c NC |
1218 | { |
1219 | _bfd_error_handler | |
d003868e | 1220 | (_("%B: string not null terminated in ILF object file."), abfd); |
17505c5c | 1221 | bfd_set_error (bfd_error_malformed_archive); |
487e54f2 | 1222 | bfd_release (abfd, ptr); |
17505c5c NC |
1223 | return NULL; |
1224 | } | |
ee91ed79 | 1225 | |
17505c5c NC |
1226 | /* Now construct the bfd. */ |
1227 | if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name, | |
1228 | source_dll, ordinal, types)) | |
487e54f2 AM |
1229 | { |
1230 | bfd_release (abfd, ptr); | |
1231 | return NULL; | |
1232 | } | |
ee91ed79 | 1233 | |
17505c5c NC |
1234 | return abfd->xvec; |
1235 | } | |
1236 | ||
1237 | static const bfd_target * | |
1238 | pe_bfd_object_p (bfd * abfd) | |
cb665cd3 | 1239 | { |
cb665cd3 | 1240 | bfd_byte buffer[4]; |
15e0ecd9 L |
1241 | struct external_PEI_DOS_hdr dos_hdr; |
1242 | struct external_PEI_IMAGE_hdr image_hdr; | |
cb665cd3 | 1243 | file_ptr offset; |
cb665cd3 NC |
1244 | |
1245 | /* Detect if this a Microsoft Import Library Format element. */ | |
dc810e39 AM |
1246 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 |
1247 | || bfd_bread (buffer, (bfd_size_type) 4, abfd) != 4) | |
cb665cd3 NC |
1248 | { |
1249 | if (bfd_get_error () != bfd_error_system_call) | |
1250 | bfd_set_error (bfd_error_wrong_format); | |
1251 | return NULL; | |
1252 | } | |
ee91ed79 | 1253 | |
dc810e39 | 1254 | if (H_GET_32 (abfd, buffer) == 0xffff0000) |
17505c5c | 1255 | return pe_ILF_object_p (abfd); |
ee91ed79 | 1256 | |
dc810e39 AM |
1257 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 |
1258 | || bfd_bread (&dos_hdr, (bfd_size_type) sizeof (dos_hdr), abfd) | |
15e0ecd9 | 1259 | != sizeof (dos_hdr)) |
cb665cd3 NC |
1260 | { |
1261 | if (bfd_get_error () != bfd_error_system_call) | |
1262 | bfd_set_error (bfd_error_wrong_format); | |
1263 | return NULL; | |
1264 | } | |
1265 | ||
15e0ecd9 L |
1266 | /* There are really two magic numbers involved; the magic number |
1267 | that says this is a NT executable (PEI) and the magic number that | |
1268 | determines the architecture. The former is DOSMAGIC, stored in | |
1269 | the e_magic field. The latter is stored in the f_magic field. | |
1270 | If the NT magic number isn't valid, the architecture magic number | |
1271 | could be mimicked by some other field (specifically, the number | |
1272 | of relocs in section 3). Since this routine can only be called | |
1273 | correctly for a PEI file, check the e_magic number here, and, if | |
1274 | it doesn't match, clobber the f_magic number so that we don't get | |
1275 | a false match. */ | |
dc810e39 | 1276 | if (H_GET_16 (abfd, dos_hdr.e_magic) != DOSMAGIC) |
15e0ecd9 L |
1277 | { |
1278 | bfd_set_error (bfd_error_wrong_format); | |
1279 | return NULL; | |
1280 | } | |
cb665cd3 | 1281 | |
dc810e39 AM |
1282 | offset = H_GET_32 (abfd, dos_hdr.e_lfanew); |
1283 | if (bfd_seek (abfd, offset, SEEK_SET) != 0 | |
1284 | || (bfd_bread (&image_hdr, (bfd_size_type) sizeof (image_hdr), abfd) | |
1285 | != sizeof (image_hdr))) | |
cb665cd3 NC |
1286 | { |
1287 | if (bfd_get_error () != bfd_error_system_call) | |
1288 | bfd_set_error (bfd_error_wrong_format); | |
1289 | return NULL; | |
1290 | } | |
1291 | ||
dc810e39 | 1292 | if (H_GET_32 (abfd, image_hdr.nt_signature) != 0x4550) |
cb665cd3 NC |
1293 | { |
1294 | bfd_set_error (bfd_error_wrong_format); | |
1295 | return NULL; | |
1296 | } | |
ee91ed79 | 1297 | |
cb665cd3 | 1298 | /* Here is the hack. coff_object_p wants to read filhsz bytes to |
15e0ecd9 L |
1299 | pick up the COFF header for PE, see "struct external_PEI_filehdr" |
1300 | in include/coff/pe.h. We adjust so that that will work. */ | |
dc810e39 | 1301 | if (bfd_seek (abfd, (file_ptr) (offset - sizeof (dos_hdr)), SEEK_SET) != 0) |
cb665cd3 NC |
1302 | { |
1303 | if (bfd_get_error () != bfd_error_system_call) | |
1304 | bfd_set_error (bfd_error_wrong_format); | |
1305 | return NULL; | |
1306 | } | |
1307 | ||
1308 | return coff_object_p (abfd); | |
1309 | } | |
1310 | ||
1311 | #define coff_object_p pe_bfd_object_p | |
17505c5c | 1312 | #endif /* COFF_IMAGE_WITH_PE */ |