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, |
45dfa85a AM |
3 | 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
4 | Free Software Foundation, Inc. | |
277d1b5e | 5 | Written by Cygnus Solutions. |
252b5132 | 6 | |
ff0c9faf | 7 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 8 | |
ff0c9faf NC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
ff0c9faf | 12 | (at your option) any later version. |
252b5132 | 13 | |
ff0c9faf NC |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
252b5132 | 18 | |
ff0c9faf NC |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
22 | MA 02110-1301, USA. */ | |
23 | ||
252b5132 | 24 | |
ff0c9faf | 25 | /* Most of this hacked by Steve Chamberlain, |
252b5132 | 26 | sac@cygnus.com |
277d1b5e | 27 | |
ff0c9faf NC |
28 | PE/PEI rearrangement (and code added): Donn Terry |
29 | Softway Systems, Inc. */ | |
252b5132 RH |
30 | |
31 | /* Hey look, some documentation [and in a place you expect to find it]! | |
32 | ||
33 | The main reference for the pei format is "Microsoft Portable Executable | |
34 | and Common Object File Format Specification 4.1". Get it if you need to | |
35 | do some serious hacking on this code. | |
36 | ||
37 | Another reference: | |
38 | "Peering Inside the PE: A Tour of the Win32 Portable Executable | |
39 | File Format", MSJ 1994, Volume 9. | |
40 | ||
41 | The *sole* difference between the pe format and the pei format is that the | |
42 | latter has an MSDOS 2.0 .exe header on the front that prints the message | |
43 | "This app must be run under Windows." (or some such). | |
44 | (FIXME: Whether that statement is *really* true or not is unknown. | |
45 | Are there more subtle differences between pe and pei formats? | |
46 | For now assume there aren't. If you find one, then for God sakes | |
47 | document it here!) | |
48 | ||
49 | The Microsoft docs use the word "image" instead of "executable" because | |
50 | the former can also refer to a DLL (shared library). Confusion can arise | |
51 | because the `i' in `pei' also refers to "image". The `pe' format can | |
52 | also create images (i.e. executables), it's just that to run on a win32 | |
53 | system you need to use the pei format. | |
54 | ||
55 | FIXME: Please add more docs here so the next poor fool that has to hack | |
56 | on this code has a chance of getting something accomplished without | |
ff0c9faf | 57 | wasting too much time. */ |
252b5132 | 58 | |
277d1b5e ILT |
59 | #include "libpei.h" |
60 | ||
7920ce38 | 61 | static bfd_boolean (*pe_saved_coff_bfd_print_private_bfd_data) (bfd *, void *) = |
277d1b5e ILT |
62 | #ifndef coff_bfd_print_private_bfd_data |
63 | NULL; | |
252b5132 | 64 | #else |
277d1b5e ILT |
65 | coff_bfd_print_private_bfd_data; |
66 | #undef coff_bfd_print_private_bfd_data | |
252b5132 RH |
67 | #endif |
68 | ||
7920ce38 | 69 | static bfd_boolean pe_print_private_bfd_data (bfd *, void *); |
277d1b5e | 70 | #define coff_bfd_print_private_bfd_data pe_print_private_bfd_data |
252b5132 | 71 | |
7920ce38 | 72 | static bfd_boolean (*pe_saved_coff_bfd_copy_private_bfd_data) (bfd *, bfd *) = |
277d1b5e ILT |
73 | #ifndef coff_bfd_copy_private_bfd_data |
74 | NULL; | |
75 | #else | |
76 | coff_bfd_copy_private_bfd_data; | |
77 | #undef coff_bfd_copy_private_bfd_data | |
252b5132 RH |
78 | #endif |
79 | ||
7920ce38 | 80 | static bfd_boolean pe_bfd_copy_private_bfd_data (bfd *, bfd *); |
277d1b5e | 81 | #define coff_bfd_copy_private_bfd_data pe_bfd_copy_private_bfd_data |
252b5132 | 82 | |
277d1b5e ILT |
83 | #define coff_mkobject pe_mkobject |
84 | #define coff_mkobject_hook pe_mkobject_hook | |
252b5132 | 85 | |
17505c5c NC |
86 | #ifdef COFF_IMAGE_WITH_PE |
87 | /* This structure contains static variables used by the ILF code. */ | |
88 | typedef asection * asection_ptr; | |
89 | ||
90 | typedef struct | |
91 | { | |
92 | bfd * abfd; | |
93 | bfd_byte * data; | |
94 | struct bfd_in_memory * bim; | |
95 | unsigned short magic; | |
ee91ed79 | 96 | |
17505c5c NC |
97 | arelent * reltab; |
98 | unsigned int relcount; | |
99 | ||
100 | coff_symbol_type * sym_cache; | |
101 | coff_symbol_type * sym_ptr; | |
102 | unsigned int sym_index; | |
ee91ed79 | 103 | |
17505c5c NC |
104 | unsigned int * sym_table; |
105 | unsigned int * table_ptr; | |
ee91ed79 | 106 | |
17505c5c NC |
107 | combined_entry_type * native_syms; |
108 | combined_entry_type * native_ptr; | |
109 | ||
11c8a8d1 NC |
110 | coff_symbol_type ** sym_ptr_table; |
111 | coff_symbol_type ** sym_ptr_ptr; | |
ee91ed79 | 112 | |
17505c5c NC |
113 | unsigned int sec_index; |
114 | ||
115 | char * string_table; | |
116 | char * string_ptr; | |
117 | char * end_string_ptr; | |
ee91ed79 | 118 | |
17505c5c NC |
119 | SYMENT * esym_table; |
120 | SYMENT * esym_ptr; | |
121 | ||
122 | struct internal_reloc * int_reltab; | |
123 | } | |
124 | pe_ILF_vars; | |
17505c5c | 125 | #endif /* COFF_IMAGE_WITH_PE */ |
7920ce38 | 126 | \f |
17505c5c | 127 | #ifndef NO_COFF_RELOCS |
252b5132 | 128 | static void |
7920ce38 | 129 | coff_swap_reloc_in (bfd * abfd, void * src, void * dst) |
252b5132 RH |
130 | { |
131 | RELOC *reloc_src = (RELOC *) src; | |
132 | struct internal_reloc *reloc_dst = (struct internal_reloc *) dst; | |
133 | ||
7920ce38 | 134 | reloc_dst->r_vaddr = H_GET_32 (abfd, reloc_src->r_vaddr); |
dc810e39 | 135 | reloc_dst->r_symndx = H_GET_S32 (abfd, reloc_src->r_symndx); |
7920ce38 | 136 | reloc_dst->r_type = H_GET_16 (abfd, reloc_src->r_type); |
252b5132 | 137 | #ifdef SWAP_IN_RELOC_OFFSET |
dc810e39 | 138 | reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET (abfd, reloc_src->r_offset); |
252b5132 RH |
139 | #endif |
140 | } | |
141 | ||
252b5132 | 142 | static unsigned int |
7920ce38 | 143 | coff_swap_reloc_out (bfd * abfd, void * src, void * dst) |
252b5132 | 144 | { |
7920ce38 NC |
145 | struct internal_reloc *reloc_src = (struct internal_reloc *) src; |
146 | struct external_reloc *reloc_dst = (struct external_reloc *) dst; | |
147 | ||
dc810e39 AM |
148 | H_PUT_32 (abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr); |
149 | H_PUT_32 (abfd, reloc_src->r_symndx, reloc_dst->r_symndx); | |
dc810e39 | 150 | H_PUT_16 (abfd, reloc_src->r_type, reloc_dst->r_type); |
252b5132 | 151 | |
7920ce38 | 152 | #ifdef SWAP_OUT_RELOC_OFFSET |
dc810e39 | 153 | SWAP_OUT_RELOC_OFFSET (abfd, reloc_src->r_offset, reloc_dst->r_offset); |
252b5132 RH |
154 | #endif |
155 | #ifdef SWAP_OUT_RELOC_EXTRA | |
7920ce38 | 156 | SWAP_OUT_RELOC_EXTRA (abfd, reloc_src, reloc_dst); |
252b5132 RH |
157 | #endif |
158 | return RELSZ; | |
159 | } | |
17505c5c | 160 | #endif /* not NO_COFF_RELOCS */ |
252b5132 RH |
161 | |
162 | static void | |
7920ce38 | 163 | coff_swap_filehdr_in (bfd * abfd, void * src, void * dst) |
252b5132 RH |
164 | { |
165 | FILHDR *filehdr_src = (FILHDR *) src; | |
166 | struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst; | |
252b5132 | 167 | |
7920ce38 NC |
168 | filehdr_dst->f_magic = H_GET_16 (abfd, filehdr_src->f_magic); |
169 | filehdr_dst->f_nscns = H_GET_16 (abfd, filehdr_src->f_nscns); | |
170 | filehdr_dst->f_timdat = H_GET_32 (abfd, filehdr_src->f_timdat); | |
171 | filehdr_dst->f_nsyms = H_GET_32 (abfd, filehdr_src->f_nsyms); | |
172 | filehdr_dst->f_flags = H_GET_16 (abfd, filehdr_src->f_flags); | |
dc810e39 | 173 | filehdr_dst->f_symptr = H_GET_32 (abfd, filehdr_src->f_symptr); |
252b5132 RH |
174 | |
175 | /* Other people's tools sometimes generate headers with an nsyms but | |
176 | a zero symptr. */ | |
177 | if (filehdr_dst->f_nsyms != 0 && filehdr_dst->f_symptr == 0) | |
178 | { | |
179 | filehdr_dst->f_nsyms = 0; | |
180 | filehdr_dst->f_flags |= F_LSYMS; | |
181 | } | |
182 | ||
dc810e39 | 183 | filehdr_dst->f_opthdr = H_GET_16 (abfd, filehdr_src-> f_opthdr); |
252b5132 RH |
184 | } |
185 | ||
186 | #ifdef COFF_IMAGE_WITH_PE | |
cbff5e0d | 187 | # define coff_swap_filehdr_out _bfd_XXi_only_swap_filehdr_out |
99ad8390 NC |
188 | #elif defined COFF_WITH_pex64 |
189 | # define coff_swap_filehdr_out _bfd_pex64_only_swap_filehdr_out | |
190 | #elif defined COFF_WITH_pep | |
191 | # define coff_swap_filehdr_out _bfd_pep_only_swap_filehdr_out | |
252b5132 | 192 | #else |
cbff5e0d | 193 | # define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out |
252b5132 | 194 | #endif |
252b5132 | 195 | |
252b5132 | 196 | static void |
7920ce38 | 197 | coff_swap_scnhdr_in (bfd * abfd, void * ext, void * in) |
252b5132 RH |
198 | { |
199 | SCNHDR *scnhdr_ext = (SCNHDR *) ext; | |
200 | struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in; | |
201 | ||
7920ce38 NC |
202 | memcpy (scnhdr_int->s_name, scnhdr_ext->s_name, sizeof (scnhdr_int->s_name)); |
203 | ||
204 | scnhdr_int->s_vaddr = GET_SCNHDR_VADDR (abfd, scnhdr_ext->s_vaddr); | |
205 | scnhdr_int->s_paddr = GET_SCNHDR_PADDR (abfd, scnhdr_ext->s_paddr); | |
206 | scnhdr_int->s_size = GET_SCNHDR_SIZE (abfd, scnhdr_ext->s_size); | |
207 | scnhdr_int->s_scnptr = GET_SCNHDR_SCNPTR (abfd, scnhdr_ext->s_scnptr); | |
208 | scnhdr_int->s_relptr = GET_SCNHDR_RELPTR (abfd, scnhdr_ext->s_relptr); | |
dc810e39 | 209 | scnhdr_int->s_lnnoptr = GET_SCNHDR_LNNOPTR (abfd, scnhdr_ext->s_lnnoptr); |
7920ce38 | 210 | scnhdr_int->s_flags = H_GET_32 (abfd, scnhdr_ext->s_flags); |
252b5132 | 211 | |
cb43721d ILT |
212 | /* MS handles overflow of line numbers by carrying into the reloc |
213 | field (it appears). Since it's supposed to be zero for PE | |
214 | *IMAGE* format, that's safe. This is still a bit iffy. */ | |
215 | #ifdef COFF_IMAGE_WITH_PE | |
dc810e39 AM |
216 | scnhdr_int->s_nlnno = (H_GET_16 (abfd, scnhdr_ext->s_nlnno) |
217 | + (H_GET_16 (abfd, scnhdr_ext->s_nreloc) << 16)); | |
cb43721d ILT |
218 | scnhdr_int->s_nreloc = 0; |
219 | #else | |
dc810e39 AM |
220 | scnhdr_int->s_nreloc = H_GET_16 (abfd, scnhdr_ext->s_nreloc); |
221 | scnhdr_int->s_nlnno = H_GET_16 (abfd, scnhdr_ext->s_nlnno); | |
cb43721d | 222 | #endif |
252b5132 | 223 | |
ee91ed79 | 224 | if (scnhdr_int->s_vaddr != 0) |
252b5132 RH |
225 | { |
226 | scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase; | |
99ad8390 NC |
227 | /* Do not cut upper 32-bits for 64-bit vma. */ |
228 | #ifndef COFF_WITH_pex64 | |
252b5132 | 229 | scnhdr_int->s_vaddr &= 0xffffffff; |
99ad8390 | 230 | #endif |
252b5132 | 231 | } |
e166a60f | 232 | |
17505c5c | 233 | #ifndef COFF_NO_HACK_SCNHDR_SIZE |
a3476bef NC |
234 | /* If this section holds uninitialized data and is from an object file |
235 | or from an executable image that has not initialized the field, | |
c9ac8978 NC |
236 | or if the image is an executable file and the physical size is padded, |
237 | use the virtual size (stored in s_paddr) instead. */ | |
a3476bef NC |
238 | if (scnhdr_int->s_paddr > 0 |
239 | && (((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0 | |
92dd4511 L |
240 | && (! bfd_pei_p (abfd) || scnhdr_int->s_size == 0)) |
241 | || (bfd_pei_p (abfd) && (scnhdr_int->s_size > scnhdr_int->s_paddr)))) | |
7920ce38 NC |
242 | /* This code used to set scnhdr_int->s_paddr to 0. However, |
243 | coff_set_alignment_hook stores s_paddr in virt_size, which | |
244 | only works if it correctly holds the virtual size of the | |
245 | section. */ | |
246 | scnhdr_int->s_size = scnhdr_int->s_paddr; | |
17505c5c | 247 | #endif |
252b5132 RH |
248 | } |
249 | ||
b34976b6 | 250 | static bfd_boolean |
7920ce38 | 251 | pe_mkobject (bfd * abfd) |
252b5132 RH |
252 | { |
253 | pe_data_type *pe; | |
dc810e39 AM |
254 | bfd_size_type amt = sizeof (pe_data_type); |
255 | ||
256 | abfd->tdata.pe_obj_data = (struct pe_tdata *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
257 | |
258 | if (abfd->tdata.pe_obj_data == 0) | |
b34976b6 | 259 | return FALSE; |
252b5132 RH |
260 | |
261 | pe = pe_data (abfd); | |
262 | ||
263 | pe->coff.pe = 1; | |
277d1b5e ILT |
264 | |
265 | /* in_reloc_p is architecture dependent. */ | |
252b5132 | 266 | pe->in_reloc_p = in_reloc_p; |
cbff5e0d | 267 | |
b34976b6 | 268 | return TRUE; |
252b5132 RH |
269 | } |
270 | ||
271 | /* Create the COFF backend specific information. */ | |
7920ce38 NC |
272 | |
273 | static void * | |
274 | pe_mkobject_hook (bfd * abfd, | |
275 | void * filehdr, | |
276 | void * aouthdr ATTRIBUTE_UNUSED) | |
252b5132 RH |
277 | { |
278 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
279 | pe_data_type *pe; | |
280 | ||
82e51918 | 281 | if (! pe_mkobject (abfd)) |
252b5132 RH |
282 | return NULL; |
283 | ||
284 | pe = pe_data (abfd); | |
285 | pe->coff.sym_filepos = internal_f->f_symptr; | |
286 | /* These members communicate important constants about the symbol | |
287 | table to GDB's symbol-reading code. These `constants' | |
288 | unfortunately vary among coff implementations... */ | |
289 | pe->coff.local_n_btmask = N_BTMASK; | |
290 | pe->coff.local_n_btshft = N_BTSHFT; | |
291 | pe->coff.local_n_tmask = N_TMASK; | |
292 | pe->coff.local_n_tshift = N_TSHIFT; | |
293 | pe->coff.local_symesz = SYMESZ; | |
294 | pe->coff.local_auxesz = AUXESZ; | |
295 | pe->coff.local_linesz = LINESZ; | |
296 | ||
1135238b ILT |
297 | pe->coff.timestamp = internal_f->f_timdat; |
298 | ||
252b5132 RH |
299 | obj_raw_syment_count (abfd) = |
300 | obj_conv_table_size (abfd) = | |
301 | internal_f->f_nsyms; | |
302 | ||
303 | pe->real_flags = internal_f->f_flags; | |
304 | ||
305 | if ((internal_f->f_flags & F_DLL) != 0) | |
306 | pe->dll = 1; | |
307 | ||
4cfec37b ILT |
308 | if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) |
309 | abfd->flags |= HAS_DEBUG; | |
310 | ||
252b5132 | 311 | #ifdef COFF_IMAGE_WITH_PE |
ee91ed79 | 312 | if (aouthdr) |
7920ce38 | 313 | pe->pe_opthdr = ((struct internal_aouthdr *) aouthdr)->pe; |
252b5132 RH |
314 | #endif |
315 | ||
ee91ed79 | 316 | #ifdef ARM |
252b5132 RH |
317 | if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) |
318 | coff_data (abfd) ->flags = 0; | |
319 | #endif | |
ee91ed79 | 320 | |
7920ce38 | 321 | return (void *) pe; |
252b5132 RH |
322 | } |
323 | ||
b34976b6 | 324 | static bfd_boolean |
7920ce38 | 325 | pe_print_private_bfd_data (bfd *abfd, void * vfile) |
277d1b5e ILT |
326 | { |
327 | FILE *file = (FILE *) vfile; | |
328 | ||
cbff5e0d | 329 | if (!_bfd_XX_print_private_bfd_data_common (abfd, vfile)) |
b34976b6 | 330 | return FALSE; |
252b5132 | 331 | |
7920ce38 NC |
332 | if (pe_saved_coff_bfd_print_private_bfd_data == NULL) |
333 | return TRUE; | |
277d1b5e | 334 | |
7920ce38 | 335 | fputc ('\n', file); |
277d1b5e | 336 | |
7920ce38 | 337 | return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile); |
277d1b5e | 338 | } |
252b5132 RH |
339 | |
340 | /* Copy any private info we understand from the input bfd | |
341 | to the output bfd. */ | |
342 | ||
b34976b6 | 343 | static bfd_boolean |
7920ce38 | 344 | pe_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
252b5132 | 345 | { |
5c9c6a54 NC |
346 | /* PR binutils/716: Copy the large address aware flag. |
347 | XXX: Should we be copying other flags or other fields in the pe_data() | |
348 | structure ? */ | |
349 | if (pe_data (obfd) != NULL | |
350 | && pe_data (ibfd) != NULL | |
351 | && pe_data (ibfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE) | |
352 | pe_data (obfd)->real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE; | |
353 | ||
cbff5e0d | 354 | if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd, obfd)) |
b34976b6 | 355 | return FALSE; |
252b5132 RH |
356 | |
357 | if (pe_saved_coff_bfd_copy_private_bfd_data) | |
358 | return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd); | |
252b5132 | 359 | |
b34976b6 | 360 | return TRUE; |
252b5132 RH |
361 | } |
362 | ||
277d1b5e | 363 | #define coff_bfd_copy_private_section_data \ |
cbff5e0d | 364 | _bfd_XX_bfd_copy_private_section_data |
7d2b58d6 | 365 | |
cbff5e0d | 366 | #define coff_get_symbol_info _bfd_XX_get_symbol_info |
cb665cd3 | 367 | |
b1f10154 | 368 | #ifdef COFF_IMAGE_WITH_PE |
17505c5c NC |
369 | \f |
370 | /* Code to handle Microsoft's Image Library Format. | |
371 | Also known as LINK6 format. | |
ee91ed79 | 372 | Documentation about this format can be found at: |
17505c5c NC |
373 | |
374 | http://msdn.microsoft.com/library/specs/pecoff_section8.htm */ | |
375 | ||
376 | /* The following constants specify the sizes of the various data | |
377 | structures that we have to create in order to build a bfd describing | |
378 | an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6 | |
379 | and SIZEOF_IDATA7 below is to allow for the possibility that we might | |
380 | need a padding byte in order to ensure 16 bit alignment for the section's | |
381 | contents. | |
382 | ||
383 | The value for SIZEOF_ILF_STRINGS is computed as follows: | |
384 | ||
385 | There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters | |
11c8a8d1 | 386 | per symbol for their names (longest section name is .idata$x). |
17505c5c NC |
387 | |
388 | There will be two symbols for the imported value, one the symbol name | |
389 | and one with _imp__ prefixed. Allowing for the terminating nul's this | |
11c8a8d1 | 390 | is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll). |
17505c5c NC |
391 | |
392 | The strings in the string table must start STRING__SIZE_SIZE bytes into | |
393 | the table in order to for the string lookup code in coffgen/coffcode to | |
394 | work. */ | |
395 | #define NUM_ILF_RELOCS 8 | |
396 | #define NUM_ILF_SECTIONS 6 | |
397 | #define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS) | |
ee91ed79 | 398 | |
7920ce38 NC |
399 | #define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache)) |
400 | #define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table)) | |
401 | #define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms)) | |
11c8a8d1 | 402 | #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table)) |
7920ce38 NC |
403 | #define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table)) |
404 | #define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab)) | |
405 | #define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab)) | |
406 | #define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \ | |
11c8a8d1 NC |
407 | + 21 + strlen (source_dll) \ |
408 | + NUM_ILF_SECTIONS * 9 \ | |
409 | + STRING_SIZE_SIZE) | |
17505c5c | 410 | #define SIZEOF_IDATA2 (5 * 4) |
99ad8390 NC |
411 | |
412 | /* For PEx64 idata4 & 5 have thumb size of 8 bytes. */ | |
413 | #ifdef COFF_WITH_pex64 | |
414 | #define SIZEOF_IDATA4 (2 * 4) | |
415 | #define SIZEOF_IDATA5 (2 * 4) | |
416 | #else | |
17505c5c NC |
417 | #define SIZEOF_IDATA4 (1 * 4) |
418 | #define SIZEOF_IDATA5 (1 * 4) | |
99ad8390 NC |
419 | #endif |
420 | ||
17505c5c NC |
421 | #define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1) |
422 | #define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1) | |
423 | #define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata)) | |
ee91ed79 | 424 | |
17505c5c | 425 | #define ILF_DATA_SIZE \ |
17505c5c NC |
426 | + SIZEOF_ILF_SYMS \ |
427 | + SIZEOF_ILF_SYM_TABLE \ | |
428 | + SIZEOF_ILF_NATIVE_SYMS \ | |
11c8a8d1 | 429 | + SIZEOF_ILF_SYM_PTR_TABLE \ |
17505c5c NC |
430 | + SIZEOF_ILF_EXT_SYMS \ |
431 | + SIZEOF_ILF_RELOCS \ | |
432 | + SIZEOF_ILF_INT_RELOCS \ | |
433 | + SIZEOF_ILF_STRINGS \ | |
434 | + SIZEOF_IDATA2 \ | |
435 | + SIZEOF_IDATA4 \ | |
436 | + SIZEOF_IDATA5 \ | |
437 | + SIZEOF_IDATA6 \ | |
438 | + SIZEOF_IDATA7 \ | |
439 | + SIZEOF_ILF_SECTIONS \ | |
440 | + MAX_TEXT_SECTION_SIZE | |
441 | ||
17505c5c | 442 | /* Create an empty relocation against the given symbol. */ |
7920ce38 | 443 | |
17505c5c | 444 | static void |
7920ce38 NC |
445 | pe_ILF_make_a_symbol_reloc (pe_ILF_vars * vars, |
446 | bfd_vma address, | |
447 | bfd_reloc_code_real_type reloc, | |
448 | struct bfd_symbol ** sym, | |
449 | unsigned int sym_index) | |
17505c5c NC |
450 | { |
451 | arelent * entry; | |
452 | struct internal_reloc * internal; | |
453 | ||
454 | entry = vars->reltab + vars->relcount; | |
455 | internal = vars->int_reltab + vars->relcount; | |
ee91ed79 | 456 | |
17505c5c NC |
457 | entry->address = address; |
458 | entry->addend = 0; | |
459 | entry->howto = bfd_reloc_type_lookup (vars->abfd, reloc); | |
11c8a8d1 | 460 | entry->sym_ptr_ptr = sym; |
17505c5c NC |
461 | |
462 | internal->r_vaddr = address; | |
11c8a8d1 | 463 | internal->r_symndx = sym_index; |
17505c5c | 464 | internal->r_type = entry->howto->type; |
ee91ed79 | 465 | |
17505c5c | 466 | vars->relcount ++; |
ee91ed79 | 467 | |
17505c5c NC |
468 | BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS); |
469 | } | |
470 | ||
11c8a8d1 | 471 | /* Create an empty relocation against the given section. */ |
7920ce38 | 472 | |
11c8a8d1 NC |
473 | static void |
474 | pe_ILF_make_a_reloc (pe_ILF_vars * vars, | |
475 | bfd_vma address, | |
476 | bfd_reloc_code_real_type reloc, | |
477 | asection_ptr sec) | |
478 | { | |
479 | pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr, | |
480 | coff_section_data (vars->abfd, sec)->i); | |
481 | } | |
482 | ||
17505c5c | 483 | /* Move the queued relocs into the given section. */ |
7920ce38 | 484 | |
17505c5c NC |
485 | static void |
486 | pe_ILF_save_relocs (pe_ILF_vars * vars, | |
487 | asection_ptr sec) | |
488 | { | |
489 | /* Make sure that there is somewhere to store the internal relocs. */ | |
490 | if (coff_section_data (vars->abfd, sec) == NULL) | |
491 | /* We should probably return an error indication here. */ | |
492 | abort (); | |
493 | ||
494 | coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab; | |
b34976b6 | 495 | coff_section_data (vars->abfd, sec)->keep_relocs = TRUE; |
17505c5c NC |
496 | |
497 | sec->relocation = vars->reltab; | |
498 | sec->reloc_count = vars->relcount; | |
499 | sec->flags |= SEC_RELOC; | |
500 | ||
501 | vars->reltab += vars->relcount; | |
502 | vars->int_reltab += vars->relcount; | |
503 | vars->relcount = 0; | |
504 | ||
dc810e39 | 505 | BFD_ASSERT ((bfd_byte *) vars->int_reltab < (bfd_byte *) vars->string_table); |
17505c5c NC |
506 | } |
507 | ||
508 | /* Create a global symbol and add it to the relevant tables. */ | |
7920ce38 | 509 | |
17505c5c NC |
510 | static void |
511 | pe_ILF_make_a_symbol (pe_ILF_vars * vars, | |
512 | const char * prefix, | |
513 | const char * symbol_name, | |
514 | asection_ptr section, | |
515 | flagword extra_flags) | |
516 | { | |
517 | coff_symbol_type * sym; | |
518 | combined_entry_type * ent; | |
519 | SYMENT * esym; | |
520 | unsigned short sclass; | |
521 | ||
522 | if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 523 | sclass = C_STAT; |
17505c5c NC |
524 | else |
525 | sclass = C_EXT; | |
ee91ed79 KH |
526 | |
527 | #ifdef THUMBPEMAGIC | |
17505c5c NC |
528 | if (vars->magic == THUMBPEMAGIC) |
529 | { | |
530 | if (extra_flags & BSF_FUNCTION) | |
531 | sclass = C_THUMBEXTFUNC; | |
532 | else if (extra_flags & BSF_LOCAL) | |
11c8a8d1 | 533 | sclass = C_THUMBSTAT; |
17505c5c NC |
534 | else |
535 | sclass = C_THUMBEXT; | |
536 | } | |
537 | #endif | |
538 | ||
539 | BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS); | |
ee91ed79 | 540 | |
17505c5c NC |
541 | sym = vars->sym_ptr; |
542 | ent = vars->native_ptr; | |
543 | esym = vars->esym_ptr; | |
544 | ||
545 | /* Copy the symbol's name into the string table. */ | |
546 | sprintf (vars->string_ptr, "%s%s", prefix, symbol_name); | |
547 | ||
10821322 | 548 | if (section == NULL) |
45dfa85a | 549 | section = bfd_und_section_ptr; |
ee91ed79 | 550 | |
17505c5c | 551 | /* Initialise the external symbol. */ |
dc810e39 AM |
552 | H_PUT_32 (vars->abfd, vars->string_ptr - vars->string_table, |
553 | esym->e.e.e_offset); | |
554 | H_PUT_16 (vars->abfd, section->target_index, esym->e_scnum); | |
17505c5c NC |
555 | esym->e_sclass[0] = sclass; |
556 | ||
557 | /* The following initialisations are unnecessary - the memory is | |
558 | zero initialised. They are just kept here as reminders. */ | |
ee91ed79 | 559 | |
17505c5c NC |
560 | /* Initialise the internal symbol structure. */ |
561 | ent->u.syment.n_sclass = sclass; | |
10821322 | 562 | ent->u.syment.n_scnum = section->target_index; |
d2df793a | 563 | ent->u.syment._n._n_n._n_offset = (bfd_hostptr_t) sym; |
ee91ed79 | 564 | |
17505c5c NC |
565 | sym->symbol.the_bfd = vars->abfd; |
566 | sym->symbol.name = vars->string_ptr; | |
567 | sym->symbol.flags = BSF_EXPORT | BSF_GLOBAL | extra_flags; | |
568 | sym->symbol.section = section; | |
569 | sym->native = ent; | |
ee91ed79 | 570 | |
17505c5c | 571 | * vars->table_ptr = vars->sym_index; |
11c8a8d1 | 572 | * vars->sym_ptr_ptr = sym; |
ee91ed79 | 573 | |
17505c5c NC |
574 | /* Adjust pointers for the next symbol. */ |
575 | vars->sym_index ++; | |
576 | vars->sym_ptr ++; | |
11c8a8d1 | 577 | vars->sym_ptr_ptr ++; |
17505c5c NC |
578 | vars->table_ptr ++; |
579 | vars->native_ptr ++; | |
580 | vars->esym_ptr ++; | |
11c8a8d1 | 581 | vars->string_ptr += strlen (symbol_name) + strlen (prefix) + 1; |
17505c5c NC |
582 | |
583 | BFD_ASSERT (vars->string_ptr < vars->end_string_ptr); | |
584 | } | |
585 | ||
586 | /* Create a section. */ | |
7920ce38 | 587 | |
17505c5c NC |
588 | static asection_ptr |
589 | pe_ILF_make_a_section (pe_ILF_vars * vars, | |
590 | const char * name, | |
591 | unsigned int size, | |
592 | flagword extra_flags) | |
593 | { | |
594 | asection_ptr sec; | |
595 | flagword flags; | |
ee91ed79 | 596 | |
17505c5c NC |
597 | sec = bfd_make_section_old_way (vars->abfd, name); |
598 | if (sec == NULL) | |
599 | return NULL; | |
ee91ed79 | 600 | |
17505c5c | 601 | flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY; |
ee91ed79 | 602 | |
17505c5c | 603 | bfd_set_section_flags (vars->abfd, sec, flags | extra_flags); |
ee91ed79 | 604 | |
17505c5c | 605 | bfd_set_section_alignment (vars->abfd, sec, 2); |
ee91ed79 | 606 | |
17505c5c NC |
607 | /* Check that we will not run out of space. */ |
608 | BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 609 | |
17505c5c NC |
610 | /* Set the section size and contents. The actual |
611 | contents are filled in by our parent. */ | |
dc810e39 | 612 | bfd_set_section_size (vars->abfd, sec, (bfd_size_type) size); |
17505c5c NC |
613 | sec->contents = vars->data; |
614 | sec->target_index = vars->sec_index ++; | |
615 | ||
616 | /* Advance data pointer in the vars structure. */ | |
617 | vars->data += size; | |
ee91ed79 | 618 | |
17505c5c NC |
619 | /* Skip the padding byte if it was not needed. |
620 | The logic here is that if the string length is odd, | |
621 | then the entire string length, including the null byte, | |
622 | is even and so the extra, padding byte, is not needed. */ | |
623 | if (size & 1) | |
624 | vars->data --; | |
ee91ed79 | 625 | |
17505c5c NC |
626 | /* Create a coff_section_tdata structure for our use. */ |
627 | sec->used_by_bfd = (struct coff_section_tdata *) vars->data; | |
628 | vars->data += sizeof (struct coff_section_tdata); | |
629 | ||
630 | BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size); | |
ee91ed79 | 631 | |
17505c5c NC |
632 | /* Create a symbol to refer to this section. */ |
633 | pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL); | |
634 | ||
11c8a8d1 | 635 | /* Cache the index to the symbol in the coff_section_data structure. */ |
17505c5c | 636 | coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1; |
ee91ed79 | 637 | |
17505c5c NC |
638 | return sec; |
639 | } | |
640 | ||
641 | /* This structure contains the code that goes into the .text section | |
642 | in order to perform a jump into the DLL lookup table. The entries | |
643 | in the table are index by the magic number used to represent the | |
644 | machine type in the PE file. The contents of the data[] arrays in | |
645 | these entries are stolen from the jtab[] arrays in ld/pe-dll.c. | |
646 | The SIZE field says how many bytes in the DATA array are actually | |
647 | used. The OFFSET field says where in the data array the address | |
648 | of the .idata$5 section should be placed. */ | |
649 | #define MAX_TEXT_SECTION_SIZE 32 | |
650 | ||
651 | typedef struct | |
652 | { | |
653 | unsigned short magic; | |
654 | unsigned char data[MAX_TEXT_SECTION_SIZE]; | |
655 | unsigned int size; | |
656 | unsigned int offset; | |
657 | } | |
658 | jump_table; | |
659 | ||
86033394 | 660 | static jump_table jtab[] = |
17505c5c NC |
661 | { |
662 | #ifdef I386MAGIC | |
663 | { I386MAGIC, | |
664 | { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, | |
665 | 8, 2 | |
666 | }, | |
667 | #endif | |
ee91ed79 | 668 | |
99ad8390 NC |
669 | #ifdef AMD64MAGIC |
670 | { AMD64MAGIC, | |
671 | { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, | |
672 | 8, 2 | |
673 | }, | |
674 | #endif | |
675 | ||
17505c5c | 676 | #ifdef MC68MAGIC |
99ad8390 NC |
677 | { MC68MAGIC, |
678 | { /* XXX fill me in */ }, | |
679 | 0, 0 | |
680 | }, | |
17505c5c | 681 | #endif |
99ad8390 | 682 | |
17505c5c NC |
683 | #ifdef MIPS_ARCH_MAGIC_WINCE |
684 | { MIPS_ARCH_MAGIC_WINCE, | |
685 | { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, | |
686 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 }, | |
687 | 16, 0 | |
688 | }, | |
689 | #endif | |
ee91ed79 | 690 | |
17505c5c NC |
691 | #ifdef SH_ARCH_MAGIC_WINCE |
692 | { SH_ARCH_MAGIC_WINCE, | |
693 | { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, | |
694 | 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 }, | |
695 | 12, 8 | |
696 | }, | |
697 | #endif | |
ee91ed79 | 698 | |
17505c5c NC |
699 | #ifdef ARMPEMAGIC |
700 | { ARMPEMAGIC, | |
701 | { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0, | |
702 | 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00}, | |
703 | 12, 8 | |
704 | }, | |
705 | #endif | |
ee91ed79 | 706 | |
17505c5c NC |
707 | #ifdef THUMBPEMAGIC |
708 | { THUMBPEMAGIC, | |
709 | { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46, | |
710 | 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 }, | |
711 | 16, 12 | |
712 | }, | |
713 | #endif | |
714 | { 0, { 0 }, 0, 0 } | |
715 | }; | |
716 | ||
717 | #ifndef NUM_ENTRIES | |
718 | #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0]) | |
719 | #endif | |
720 | ||
721 | /* Build a full BFD from the information supplied in a ILF object. */ | |
7920ce38 | 722 | |
b34976b6 | 723 | static bfd_boolean |
17505c5c | 724 | pe_ILF_build_a_bfd (bfd * abfd, |
dc810e39 | 725 | unsigned int magic, |
f075ee0c AM |
726 | char * symbol_name, |
727 | char * source_dll, | |
17505c5c NC |
728 | unsigned int ordinal, |
729 | unsigned int types) | |
ee91ed79 | 730 | { |
17505c5c NC |
731 | bfd_byte * ptr; |
732 | pe_ILF_vars vars; | |
733 | struct internal_filehdr internal_f; | |
734 | unsigned int import_type; | |
735 | unsigned int import_name_type; | |
11c8a8d1 NC |
736 | asection_ptr id4, id5, id6 = NULL, text = NULL; |
737 | coff_symbol_type ** imp_sym; | |
738 | unsigned int imp_index; | |
17505c5c | 739 | |
17505c5c NC |
740 | /* Decode and verify the types field of the ILF structure. */ |
741 | import_type = types & 0x3; | |
742 | import_name_type = (types & 0x1c) >> 2; | |
743 | ||
744 | switch (import_type) | |
745 | { | |
746 | case IMPORT_CODE: | |
747 | case IMPORT_DATA: | |
748 | break; | |
ee91ed79 | 749 | |
17505c5c NC |
750 | case IMPORT_CONST: |
751 | /* XXX code yet to be written. */ | |
d003868e AM |
752 | _bfd_error_handler (_("%B: Unhandled import type; %x"), |
753 | abfd, import_type); | |
b34976b6 | 754 | return FALSE; |
ee91ed79 | 755 | |
17505c5c | 756 | default: |
d003868e AM |
757 | _bfd_error_handler (_("%B: Unrecognised import type; %x"), |
758 | abfd, import_type); | |
b34976b6 | 759 | return FALSE; |
17505c5c NC |
760 | } |
761 | ||
762 | switch (import_name_type) | |
763 | { | |
764 | case IMPORT_ORDINAL: | |
765 | case IMPORT_NAME: | |
766 | case IMPORT_NAME_NOPREFIX: | |
767 | case IMPORT_NAME_UNDECORATE: | |
768 | break; | |
ee91ed79 | 769 | |
17505c5c | 770 | default: |
d003868e AM |
771 | _bfd_error_handler (_("%B: Unrecognised import name type; %x"), |
772 | abfd, import_name_type); | |
b34976b6 | 773 | return FALSE; |
17505c5c NC |
774 | } |
775 | ||
776 | /* Initialise local variables. | |
ee91ed79 | 777 | |
17505c5c NC |
778 | Note these are kept in a structure rather than being |
779 | declared as statics since bfd frowns on global variables. | |
ee91ed79 | 780 | |
17505c5c NC |
781 | We are going to construct the contents of the BFD in memory, |
782 | so allocate all the space that we will need right now. */ | |
493152cb AM |
783 | vars.bim |
784 | = (struct bfd_in_memory *) bfd_malloc ((bfd_size_type) sizeof (*vars.bim)); | |
785 | if (vars.bim == NULL) | |
b34976b6 | 786 | return FALSE; |
17505c5c | 787 | |
493152cb | 788 | ptr = (bfd_byte *) bfd_zmalloc ((bfd_size_type) ILF_DATA_SIZE); |
17505c5c NC |
789 | vars.bim->buffer = ptr; |
790 | vars.bim->size = ILF_DATA_SIZE; | |
493152cb AM |
791 | if (ptr == NULL) |
792 | goto error_return; | |
ee91ed79 | 793 | |
17505c5c NC |
794 | /* Initialise the pointers to regions of the memory and the |
795 | other contents of the pe_ILF_vars structure as well. */ | |
796 | vars.sym_cache = (coff_symbol_type *) ptr; | |
797 | vars.sym_ptr = (coff_symbol_type *) ptr; | |
798 | vars.sym_index = 0; | |
799 | ptr += SIZEOF_ILF_SYMS; | |
ee91ed79 | 800 | |
17505c5c NC |
801 | vars.sym_table = (unsigned int *) ptr; |
802 | vars.table_ptr = (unsigned int *) ptr; | |
803 | ptr += SIZEOF_ILF_SYM_TABLE; | |
804 | ||
805 | vars.native_syms = (combined_entry_type *) ptr; | |
806 | vars.native_ptr = (combined_entry_type *) ptr; | |
807 | ptr += SIZEOF_ILF_NATIVE_SYMS; | |
11c8a8d1 NC |
808 | |
809 | vars.sym_ptr_table = (coff_symbol_type **) ptr; | |
810 | vars.sym_ptr_ptr = (coff_symbol_type **) ptr; | |
811 | ptr += SIZEOF_ILF_SYM_PTR_TABLE; | |
ee91ed79 | 812 | |
17505c5c NC |
813 | vars.esym_table = (SYMENT *) ptr; |
814 | vars.esym_ptr = (SYMENT *) ptr; | |
815 | ptr += SIZEOF_ILF_EXT_SYMS; | |
ee91ed79 | 816 | |
17505c5c NC |
817 | vars.reltab = (arelent *) ptr; |
818 | vars.relcount = 0; | |
819 | ptr += SIZEOF_ILF_RELOCS; | |
820 | ||
821 | vars.int_reltab = (struct internal_reloc *) ptr; | |
822 | ptr += SIZEOF_ILF_INT_RELOCS; | |
823 | ||
f075ee0c AM |
824 | vars.string_table = (char *) ptr; |
825 | vars.string_ptr = (char *) ptr + STRING_SIZE_SIZE; | |
17505c5c | 826 | ptr += SIZEOF_ILF_STRINGS; |
f075ee0c | 827 | vars.end_string_ptr = (char *) ptr; |
ee91ed79 | 828 | |
17505c5c NC |
829 | /* The remaining space in bim->buffer is used |
830 | by the pe_ILF_make_a_section() function. */ | |
831 | vars.data = ptr; | |
832 | vars.abfd = abfd; | |
833 | vars.sec_index = 0; | |
834 | vars.magic = magic; | |
ee91ed79 | 835 | |
17505c5c | 836 | /* Create the initial .idata$<n> sections: |
11c8a8d1 | 837 | [.idata$2: Import Directory Table -- not needed] |
17505c5c NC |
838 | .idata$4: Import Lookup Table |
839 | .idata$5: Import Address Table | |
840 | ||
841 | Note we do not create a .idata$3 section as this is | |
842 | created for us by the linker script. */ | |
17505c5c NC |
843 | id4 = pe_ILF_make_a_section (& vars, ".idata$4", SIZEOF_IDATA4, 0); |
844 | id5 = pe_ILF_make_a_section (& vars, ".idata$5", SIZEOF_IDATA5, 0); | |
11c8a8d1 | 845 | if (id4 == NULL || id5 == NULL) |
493152cb | 846 | goto error_return; |
ee91ed79 | 847 | |
17505c5c NC |
848 | /* Fill in the contents of these sections. */ |
849 | if (import_name_type == IMPORT_ORDINAL) | |
850 | { | |
851 | if (ordinal == 0) | |
852 | /* XXX - treat as IMPORT_NAME ??? */ | |
853 | abort (); | |
ee91ed79 | 854 | |
99ad8390 NC |
855 | #ifdef COFF_WITH_pex64 |
856 | ((unsigned int *) id4->contents)[0] = ordinal; | |
857 | ((unsigned int *) id4->contents)[1] = 0x80000000; | |
858 | ((unsigned int *) id5->contents)[0] = ordinal; | |
859 | ((unsigned int *) id5->contents)[1] = 0x80000000; | |
860 | #else | |
fc633e5b AM |
861 | * (unsigned int *) id4->contents = ordinal | 0x80000000; |
862 | * (unsigned int *) id5->contents = ordinal | 0x80000000; | |
99ad8390 | 863 | #endif |
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) | |
493152cb | 873 | goto error_return; |
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 | 887 | char c = symbol[0]; |
e7771322 KT |
888 | |
889 | /* Check that we don't remove for targets with empty | |
890 | USER_LABEL_PREFIX the leading underscore. */ | |
891 | if ((c == '_' && abfd->xvec->symbol_leading_char != 0) | |
892 | || c == '@' || c == '?') | |
cabd4ccc | 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) | |
493152cb | 944 | goto error_return; |
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)) |
493152cb | 993 | goto error_return; |
17505c5c | 994 | |
7920ce38 | 995 | if (bfd_coff_mkobject_hook (abfd, (void *) & internal_f, NULL) == NULL) |
493152cb | 996 | goto error_return; |
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 | 1009 | abfd->flags |= BFD_IN_MEMORY /* | HAS_LOCALS */; |
65077aa8 | 1010 | abfd->iovec = &_bfd_memory_iovec; |
17505c5c | 1011 | abfd->where = 0; |
65077aa8 | 1012 | abfd->origin = 0; |
17505c5c NC |
1013 | obj_sym_filepos (abfd) = 0; |
1014 | ||
1015 | /* Now create a symbol describing the imported value. */ | |
1016 | switch (import_type) | |
1017 | { | |
1018 | case IMPORT_CODE: | |
1019 | pe_ILF_make_a_symbol (& vars, "", symbol_name, text, | |
1020 | BSF_NOT_AT_END | BSF_FUNCTION); | |
ee91ed79 | 1021 | |
11c8a8d1 NC |
1022 | /* Create an import symbol for the DLL, without the |
1023 | .dll suffix. */ | |
f075ee0c | 1024 | ptr = (bfd_byte *) strrchr (source_dll, '.'); |
11c8a8d1 NC |
1025 | if (ptr) |
1026 | * ptr = 0; | |
1027 | pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0); | |
1028 | if (ptr) | |
1029 | * ptr = '.'; | |
17505c5c NC |
1030 | break; |
1031 | ||
1032 | case IMPORT_DATA: | |
11c8a8d1 | 1033 | /* Nothing to do here. */ |
17505c5c | 1034 | break; |
ee91ed79 | 1035 | |
17505c5c NC |
1036 | default: |
1037 | /* XXX code not yet written. */ | |
1038 | abort (); | |
1039 | } | |
1040 | ||
17505c5c NC |
1041 | /* Point the bfd at the symbol table. */ |
1042 | obj_symbols (abfd) = vars.sym_cache; | |
1043 | bfd_get_symcount (abfd) = vars.sym_index; | |
ee91ed79 | 1044 | |
17505c5c NC |
1045 | obj_raw_syments (abfd) = vars.native_syms; |
1046 | obj_raw_syment_count (abfd) = vars.sym_index; | |
1047 | ||
7920ce38 | 1048 | obj_coff_external_syms (abfd) = (void *) vars.esym_table; |
b34976b6 | 1049 | obj_coff_keep_syms (abfd) = TRUE; |
ee91ed79 | 1050 | |
17505c5c NC |
1051 | obj_convert (abfd) = vars.sym_table; |
1052 | obj_conv_table_size (abfd) = vars.sym_index; | |
ee91ed79 | 1053 | |
17505c5c | 1054 | obj_coff_strings (abfd) = vars.string_table; |
b34976b6 | 1055 | obj_coff_keep_strings (abfd) = TRUE; |
17505c5c NC |
1056 | |
1057 | abfd->flags |= HAS_SYMS; | |
1058 | ||
b34976b6 | 1059 | return TRUE; |
493152cb AM |
1060 | |
1061 | error_return: | |
1062 | if (vars.bim->buffer != NULL) | |
1063 | free (vars.bim->buffer); | |
1064 | free (vars.bim); | |
1065 | return FALSE; | |
17505c5c NC |
1066 | } |
1067 | ||
1068 | /* We have detected a Image Library Format archive element. | |
1069 | Decode the element and return the appropriate target. */ | |
7920ce38 | 1070 | |
cb665cd3 | 1071 | static const bfd_target * |
17505c5c NC |
1072 | pe_ILF_object_p (bfd * abfd) |
1073 | { | |
1074 | bfd_byte buffer[16]; | |
1075 | bfd_byte * ptr; | |
f075ee0c AM |
1076 | char * symbol_name; |
1077 | char * source_dll; | |
17505c5c | 1078 | unsigned int machine; |
dc810e39 | 1079 | bfd_size_type size; |
17505c5c NC |
1080 | unsigned int ordinal; |
1081 | unsigned int types; | |
dc810e39 | 1082 | unsigned int magic; |
ee91ed79 | 1083 | |
17505c5c NC |
1084 | /* Upon entry the first four buyes of the ILF header have |
1085 | already been read. Now read the rest of the header. */ | |
dc810e39 | 1086 | if (bfd_bread (buffer, (bfd_size_type) 16, abfd) != 16) |
17505c5c NC |
1087 | return NULL; |
1088 | ||
1089 | ptr = buffer; | |
ee91ed79 | 1090 | |
17505c5c | 1091 | /* We do not bother to check the version number. |
dc810e39 | 1092 | version = H_GET_16 (abfd, ptr); */ |
17505c5c NC |
1093 | ptr += 2; |
1094 | ||
dc810e39 | 1095 | machine = H_GET_16 (abfd, ptr); |
17505c5c NC |
1096 | ptr += 2; |
1097 | ||
1098 | /* Check that the machine type is recognised. */ | |
1099 | magic = 0; | |
ee91ed79 | 1100 | |
17505c5c NC |
1101 | switch (machine) |
1102 | { | |
1103 | case IMAGE_FILE_MACHINE_UNKNOWN: | |
1104 | case IMAGE_FILE_MACHINE_ALPHA: | |
1105 | case IMAGE_FILE_MACHINE_ALPHA64: | |
1106 | case IMAGE_FILE_MACHINE_IA64: | |
1107 | break; | |
ee91ed79 | 1108 | |
17505c5c NC |
1109 | case IMAGE_FILE_MACHINE_I386: |
1110 | #ifdef I386MAGIC | |
1111 | magic = I386MAGIC; | |
1112 | #endif | |
1113 | break; | |
ee91ed79 | 1114 | |
99ad8390 NC |
1115 | case IMAGE_FILE_MACHINE_AMD64: |
1116 | #ifdef AMD64MAGIC | |
1117 | magic = AMD64MAGIC; | |
1118 | #endif | |
1119 | break; | |
1120 | ||
17505c5c NC |
1121 | case IMAGE_FILE_MACHINE_M68K: |
1122 | #ifdef MC68AGIC | |
1123 | magic = MC68MAGIC; | |
1124 | #endif | |
1125 | break; | |
ee91ed79 | 1126 | |
17505c5c NC |
1127 | case IMAGE_FILE_MACHINE_R3000: |
1128 | case IMAGE_FILE_MACHINE_R4000: | |
1129 | case IMAGE_FILE_MACHINE_R10000: | |
ee91ed79 | 1130 | |
17505c5c NC |
1131 | case IMAGE_FILE_MACHINE_MIPS16: |
1132 | case IMAGE_FILE_MACHINE_MIPSFPU: | |
1133 | case IMAGE_FILE_MACHINE_MIPSFPU16: | |
1134 | #ifdef MIPS_ARCH_MAGIC_WINCE | |
1135 | magic = MIPS_ARCH_MAGIC_WINCE; | |
1136 | #endif | |
1137 | break; | |
ee91ed79 | 1138 | |
17505c5c NC |
1139 | case IMAGE_FILE_MACHINE_SH3: |
1140 | case IMAGE_FILE_MACHINE_SH4: | |
1141 | #ifdef SH_ARCH_MAGIC_WINCE | |
1142 | magic = SH_ARCH_MAGIC_WINCE; | |
1143 | #endif | |
1144 | break; | |
ee91ed79 | 1145 | |
17505c5c NC |
1146 | case IMAGE_FILE_MACHINE_ARM: |
1147 | #ifdef ARMPEMAGIC | |
1148 | magic = ARMPEMAGIC; | |
ee91ed79 | 1149 | #endif |
17505c5c | 1150 | break; |
ee91ed79 | 1151 | |
17505c5c NC |
1152 | case IMAGE_FILE_MACHINE_THUMB: |
1153 | #ifdef THUMBPEMAGIC | |
1154 | { | |
23ccc829 | 1155 | extern const bfd_target TARGET_LITTLE_SYM; |
ee91ed79 | 1156 | |
26bfd1c0 | 1157 | if (abfd->xvec == & TARGET_LITTLE_SYM) |
17505c5c NC |
1158 | magic = THUMBPEMAGIC; |
1159 | } | |
ee91ed79 | 1160 | #endif |
17505c5c | 1161 | break; |
ee91ed79 | 1162 | |
17505c5c NC |
1163 | case IMAGE_FILE_MACHINE_POWERPC: |
1164 | /* We no longer support PowerPC. */ | |
1165 | default: | |
1166 | _bfd_error_handler | |
d003868e AM |
1167 | (_("%B: Unrecognised machine type (0x%x)" |
1168 | " in Import Library Format archive"), | |
1169 | abfd, machine); | |
17505c5c | 1170 | bfd_set_error (bfd_error_malformed_archive); |
ee91ed79 | 1171 | |
17505c5c NC |
1172 | return NULL; |
1173 | break; | |
1174 | } | |
1175 | ||
1176 | if (magic == 0) | |
1177 | { | |
1178 | _bfd_error_handler | |
d003868e AM |
1179 | (_("%B: Recognised but unhandled machine type (0x%x)" |
1180 | " in Import Library Format archive"), | |
1181 | abfd, machine); | |
17505c5c | 1182 | bfd_set_error (bfd_error_wrong_format); |
ee91ed79 | 1183 | |
17505c5c | 1184 | return NULL; |
ee91ed79 | 1185 | } |
17505c5c NC |
1186 | |
1187 | /* We do not bother to check the date. | |
dc810e39 | 1188 | date = H_GET_32 (abfd, ptr); */ |
17505c5c | 1189 | ptr += 4; |
ee91ed79 | 1190 | |
dc810e39 | 1191 | size = H_GET_32 (abfd, ptr); |
17505c5c NC |
1192 | ptr += 4; |
1193 | ||
1194 | if (size == 0) | |
1195 | { | |
1196 | _bfd_error_handler | |
d003868e | 1197 | (_("%B: size field is zero in Import Library Format header"), abfd); |
17505c5c | 1198 | bfd_set_error (bfd_error_malformed_archive); |
ee91ed79 | 1199 | |
17505c5c NC |
1200 | return NULL; |
1201 | } | |
1202 | ||
dc810e39 | 1203 | ordinal = H_GET_16 (abfd, ptr); |
17505c5c NC |
1204 | ptr += 2; |
1205 | ||
dc810e39 | 1206 | types = H_GET_16 (abfd, ptr); |
17505c5c NC |
1207 | /* ptr += 2; */ |
1208 | ||
1209 | /* Now read in the two strings that follow. */ | |
a50b1753 | 1210 | ptr = (bfd_byte *) bfd_alloc (abfd, size); |
17505c5c NC |
1211 | if (ptr == NULL) |
1212 | return NULL; | |
ee91ed79 | 1213 | |
dc810e39 | 1214 | if (bfd_bread (ptr, size, abfd) != size) |
487e54f2 AM |
1215 | { |
1216 | bfd_release (abfd, ptr); | |
1217 | return NULL; | |
1218 | } | |
17505c5c | 1219 | |
f075ee0c AM |
1220 | symbol_name = (char *) ptr; |
1221 | source_dll = symbol_name + strlen (symbol_name) + 1; | |
ee91ed79 | 1222 | |
17505c5c | 1223 | /* Verify that the strings are null terminated. */ |
f075ee0c AM |
1224 | if (ptr[size - 1] != 0 |
1225 | || (bfd_size_type) ((bfd_byte *) source_dll - ptr) >= size) | |
17505c5c NC |
1226 | { |
1227 | _bfd_error_handler | |
d003868e | 1228 | (_("%B: string not null terminated in ILF object file."), abfd); |
17505c5c | 1229 | bfd_set_error (bfd_error_malformed_archive); |
487e54f2 | 1230 | bfd_release (abfd, ptr); |
17505c5c NC |
1231 | return NULL; |
1232 | } | |
ee91ed79 | 1233 | |
17505c5c NC |
1234 | /* Now construct the bfd. */ |
1235 | if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name, | |
1236 | source_dll, ordinal, types)) | |
487e54f2 AM |
1237 | { |
1238 | bfd_release (abfd, ptr); | |
1239 | return NULL; | |
1240 | } | |
ee91ed79 | 1241 | |
17505c5c NC |
1242 | return abfd->xvec; |
1243 | } | |
1244 | ||
1245 | static const bfd_target * | |
1246 | pe_bfd_object_p (bfd * abfd) | |
cb665cd3 | 1247 | { |
cb665cd3 | 1248 | bfd_byte buffer[4]; |
15e0ecd9 L |
1249 | struct external_PEI_DOS_hdr dos_hdr; |
1250 | struct external_PEI_IMAGE_hdr image_hdr; | |
cb665cd3 | 1251 | file_ptr offset; |
cb665cd3 NC |
1252 | |
1253 | /* Detect if this a Microsoft Import Library Format element. */ | |
dc810e39 AM |
1254 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 |
1255 | || bfd_bread (buffer, (bfd_size_type) 4, abfd) != 4) | |
cb665cd3 NC |
1256 | { |
1257 | if (bfd_get_error () != bfd_error_system_call) | |
1258 | bfd_set_error (bfd_error_wrong_format); | |
1259 | return NULL; | |
1260 | } | |
ee91ed79 | 1261 | |
dc810e39 | 1262 | if (H_GET_32 (abfd, buffer) == 0xffff0000) |
17505c5c | 1263 | return pe_ILF_object_p (abfd); |
ee91ed79 | 1264 | |
dc810e39 AM |
1265 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 |
1266 | || bfd_bread (&dos_hdr, (bfd_size_type) sizeof (dos_hdr), abfd) | |
15e0ecd9 | 1267 | != sizeof (dos_hdr)) |
cb665cd3 NC |
1268 | { |
1269 | if (bfd_get_error () != bfd_error_system_call) | |
1270 | bfd_set_error (bfd_error_wrong_format); | |
1271 | return NULL; | |
1272 | } | |
1273 | ||
15e0ecd9 L |
1274 | /* There are really two magic numbers involved; the magic number |
1275 | that says this is a NT executable (PEI) and the magic number that | |
1276 | determines the architecture. The former is DOSMAGIC, stored in | |
1277 | the e_magic field. The latter is stored in the f_magic field. | |
1278 | If the NT magic number isn't valid, the architecture magic number | |
1279 | could be mimicked by some other field (specifically, the number | |
1280 | of relocs in section 3). Since this routine can only be called | |
1281 | correctly for a PEI file, check the e_magic number here, and, if | |
1282 | it doesn't match, clobber the f_magic number so that we don't get | |
1283 | a false match. */ | |
dc810e39 | 1284 | if (H_GET_16 (abfd, dos_hdr.e_magic) != DOSMAGIC) |
15e0ecd9 L |
1285 | { |
1286 | bfd_set_error (bfd_error_wrong_format); | |
1287 | return NULL; | |
1288 | } | |
cb665cd3 | 1289 | |
dc810e39 AM |
1290 | offset = H_GET_32 (abfd, dos_hdr.e_lfanew); |
1291 | if (bfd_seek (abfd, offset, SEEK_SET) != 0 | |
1292 | || (bfd_bread (&image_hdr, (bfd_size_type) sizeof (image_hdr), abfd) | |
1293 | != sizeof (image_hdr))) | |
cb665cd3 NC |
1294 | { |
1295 | if (bfd_get_error () != bfd_error_system_call) | |
1296 | bfd_set_error (bfd_error_wrong_format); | |
1297 | return NULL; | |
1298 | } | |
1299 | ||
dc810e39 | 1300 | if (H_GET_32 (abfd, image_hdr.nt_signature) != 0x4550) |
cb665cd3 NC |
1301 | { |
1302 | bfd_set_error (bfd_error_wrong_format); | |
1303 | return NULL; | |
1304 | } | |
ee91ed79 | 1305 | |
cb665cd3 | 1306 | /* Here is the hack. coff_object_p wants to read filhsz bytes to |
15e0ecd9 L |
1307 | pick up the COFF header for PE, see "struct external_PEI_filehdr" |
1308 | in include/coff/pe.h. We adjust so that that will work. */ | |
dc810e39 | 1309 | if (bfd_seek (abfd, (file_ptr) (offset - sizeof (dos_hdr)), SEEK_SET) != 0) |
cb665cd3 NC |
1310 | { |
1311 | if (bfd_get_error () != bfd_error_system_call) | |
1312 | bfd_set_error (bfd_error_wrong_format); | |
1313 | return NULL; | |
1314 | } | |
1315 | ||
92dd4511 | 1316 | return coff_object_p (abfd); |
cb665cd3 NC |
1317 | } |
1318 | ||
1319 | #define coff_object_p pe_bfd_object_p | |
17505c5c | 1320 | #endif /* COFF_IMAGE_WITH_PE */ |