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1 | # This shell script emits a C file. -*- C -*- |
2 | # It does some substitutions. | |
3 | test -z "${ENTRY}" && ENTRY="_mainCRTStartup" | |
4 | if [ -z "$MACHINE" ]; then | |
5 | OUTPUT_ARCH=${ARCH} | |
6 | else | |
7 | OUTPUT_ARCH=${ARCH}:${MACHINE} | |
8 | fi | |
9 | rm -f e${EMULATION_NAME}.c | |
10 | (echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-) | |
11 | cat >>e${EMULATION_NAME}.c <<EOF | |
12 | /* This file is part of GLD, the Gnu Linker. | |
13 | Copyright 2006 Free Software Foundation, Inc. | |
14 | ||
15 | This program is free software; you can redistribute it and/or modify | |
16 | it under the terms of the GNU General Public License as published by | |
17 | the Free Software Foundation; either version 2 of the License, or | |
18 | (at your option) any later version. | |
19 | ||
20 | This program is distributed in the hope that it will be useful, | |
21 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | GNU General Public License for more details. | |
24 | ||
25 | You should have received a copy of the GNU General Public License | |
26 | along with this program; if not, write to the Free Software | |
27 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. | |
28 | ||
29 | Written by Kai Tietz, OneVision Software GmbH&CoKg. */ | |
30 | ||
31 | /* For WINDOWS_XP64 and higher */ | |
32 | /* Based on pe.em, but modified for 64 bit support. */ | |
33 | ||
34 | #define TARGET_IS_${EMULATION_NAME} | |
35 | ||
36 | #define COFF_IMAGE_WITH_PE | |
37 | #define COFF_WITH_PE | |
38 | #define COFF_WITH_pex64 | |
39 | ||
40 | #include "bfd.h" | |
41 | #include "sysdep.h" | |
42 | #include "bfdlink.h" | |
43 | #include "getopt.h" | |
44 | #include "libiberty.h" | |
45 | #include "ld.h" | |
46 | #include "ldmain.h" | |
47 | #include "ldexp.h" | |
48 | #include "ldlang.h" | |
49 | #include "ldfile.h" | |
50 | #include "ldemul.h" | |
51 | #include <ldgram.h> | |
52 | #include "ldlex.h" | |
53 | #include "ldmisc.h" | |
54 | #include "ldctor.h" | |
55 | #include "coff/internal.h" | |
56 | ||
57 | /* FIXME: See bfd/peXXigen.c for why we include an architecture specific | |
58 | header in generic PE code. */ | |
59 | #include "coff/x86_64.h" | |
60 | #include "coff/pe.h" | |
61 | ||
62 | /* FIXME: This is a BFD internal header file, and we should not be | |
63 | using it here. */ | |
64 | #include "../bfd/libcoff.h" | |
65 | ||
66 | #undef AOUTSZ | |
67 | #define AOUTSZ PEPAOUTSZ | |
68 | #define PEAOUTHDR PEPAOUTHDR | |
69 | ||
70 | #include "deffile.h" | |
71 | #include "pep-dll.h" | |
72 | #include "safe-ctype.h" | |
73 | ||
74 | /* Permit the emulation parameters to override the default section | |
75 | alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes | |
76 | it seem that include/coff/internal.h should not define | |
77 | PE_DEF_SECTION_ALIGNMENT. */ | |
78 | #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT} | |
79 | #undef PE_DEF_SECTION_ALIGNMENT | |
80 | #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT} | |
81 | #endif | |
82 | ||
83 | #ifdef TARGET_IS_i386pep | |
84 | #define DLL_SUPPORT | |
85 | #endif | |
86 | ||
87 | #if defined(TARGET_IS_i386pep) || ! defined(DLL_SUPPORT) | |
88 | #define PE_DEF_SUBSYSTEM 3 | |
89 | #else | |
90 | #undef NT_EXE_IMAGE_BASE | |
91 | #define NT_EXE_IMAGE_BASE 0x00010000 | |
92 | #undef PE_DEF_SECTION_ALIGNMENT | |
93 | #define PE_DEF_SUBSYSTEM 2 | |
94 | #undef PE_DEF_FILE_ALIGNMENT | |
95 | #define PE_DEF_FILE_ALIGNMENT 0x00000200 | |
96 | #define PE_DEF_SECTION_ALIGNMENT 0x00000400 | |
97 | #endif | |
98 | ||
99 | ||
100 | static struct internal_extra_pe_aouthdr pep; | |
101 | static int dll; | |
102 | static flagword real_flags = IMAGE_FILE_LARGE_ADDRESS_AWARE; | |
103 | static int support_old_code = 0; | |
104 | static lang_assignment_statement_type *image_base_statement = 0; | |
105 | ||
106 | #ifdef DLL_SUPPORT | |
107 | static int pep_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */ | |
108 | static char * pep_out_def_filename = NULL; | |
109 | static char * pep_implib_filename = NULL; | |
110 | static int pep_enable_auto_image_base = 0; | |
111 | static char * pep_dll_search_prefix = NULL; | |
112 | #endif | |
113 | ||
114 | extern const char *output_filename; | |
115 | ||
116 | static void | |
117 | gld_${EMULATION_NAME}_before_parse (void) | |
118 | { | |
119 | ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`); | |
120 | output_filename = "${EXECUTABLE_NAME:-a.exe}"; | |
121 | #ifdef DLL_SUPPORT | |
122 | config.dynamic_link = TRUE; | |
123 | config.has_shared = 1; | |
124 | link_info.pei386_auto_import = -1; | |
125 | link_info.pei386_runtime_pseudo_reloc = -1; | |
126 | ||
127 | #if (PE_DEF_SUBSYSTEM == 9) || (PE_DEF_SUBSYSTEM == 2) | |
128 | lang_default_entry ("_WinMainCRTStartup"); | |
129 | #else | |
130 | lang_default_entry ("${ENTRY}"); | |
131 | #endif | |
132 | #endif | |
133 | } | |
134 | \f | |
135 | /* PE format extra command line options. */ | |
136 | ||
137 | /* Used for setting flags in the PE header. */ | |
138 | enum options | |
139 | { | |
140 | OPTION_BASE_FILE = 300 + 1, | |
141 | OPTION_DLL, | |
142 | OPTION_FILE_ALIGNMENT, | |
143 | OPTION_IMAGE_BASE, | |
144 | OPTION_MAJOR_IMAGE_VERSION, | |
145 | OPTION_MAJOR_OS_VERSION, | |
146 | OPTION_MAJOR_SUBSYSTEM_VERSION, | |
147 | OPTION_MINOR_IMAGE_VERSION, | |
148 | OPTION_MINOR_OS_VERSION, | |
149 | OPTION_MINOR_SUBSYSTEM_VERSION, | |
150 | OPTION_SECTION_ALIGNMENT, | |
151 | OPTION_STACK, | |
152 | OPTION_SUBSYSTEM, | |
153 | OPTION_HEAP, | |
154 | OPTION_SUPPORT_OLD_CODE, | |
155 | OPTION_OUT_DEF, | |
156 | OPTION_EXPORT_ALL, | |
157 | OPTION_EXCLUDE_SYMBOLS, | |
158 | OPTION_KILL_ATS, | |
159 | OPTION_STDCALL_ALIASES, | |
160 | OPTION_ENABLE_STDCALL_FIXUP, | |
161 | OPTION_DISABLE_STDCALL_FIXUP, | |
162 | OPTION_IMPLIB_FILENAME, | |
163 | OPTION_WARN_DUPLICATE_EXPORTS, | |
164 | OPTION_IMP_COMPAT, | |
165 | OPTION_ENABLE_AUTO_IMAGE_BASE, | |
166 | OPTION_DISABLE_AUTO_IMAGE_BASE, | |
167 | OPTION_DLL_SEARCH_PREFIX, | |
168 | OPTION_NO_DEFAULT_EXCLUDES, | |
169 | OPTION_DLL_ENABLE_AUTO_IMPORT, | |
170 | OPTION_DLL_DISABLE_AUTO_IMPORT, | |
171 | OPTION_ENABLE_EXTRA_PE_DEBUG, | |
172 | OPTION_EXCLUDE_LIBS, | |
173 | OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC, | |
174 | OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC | |
175 | }; | |
176 | ||
177 | static void | |
178 | gld${EMULATION_NAME}_add_options | |
179 | (int ns ATTRIBUTE_UNUSED, | |
180 | char **shortopts ATTRIBUTE_UNUSED, | |
181 | int nl, | |
182 | struct option **longopts, | |
183 | int nrl ATTRIBUTE_UNUSED, | |
184 | struct option **really_longopts ATTRIBUTE_UNUSED) | |
185 | { | |
186 | static const struct option xtra_long[] = | |
187 | { | |
188 | /* PE options */ | |
189 | {"base-file", required_argument, NULL, OPTION_BASE_FILE}, | |
190 | {"dll", no_argument, NULL, OPTION_DLL}, | |
191 | {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT}, | |
192 | {"heap", required_argument, NULL, OPTION_HEAP}, | |
193 | {"image-base", required_argument, NULL, OPTION_IMAGE_BASE}, | |
194 | {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION}, | |
195 | {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION}, | |
196 | {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION}, | |
197 | {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION}, | |
198 | {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION}, | |
199 | {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION}, | |
200 | {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT}, | |
201 | {"stack", required_argument, NULL, OPTION_STACK}, | |
202 | {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM}, | |
203 | {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE}, | |
204 | #ifdef DLL_SUPPORT | |
205 | /* getopt allows abbreviations, so we do this to stop it | |
206 | from treating -o as an abbreviation for this option. */ | |
207 | {"output-def", required_argument, NULL, OPTION_OUT_DEF}, | |
208 | {"output-def", required_argument, NULL, OPTION_OUT_DEF}, | |
209 | {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL}, | |
210 | {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS}, | |
211 | {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS}, | |
212 | {"kill-at", no_argument, NULL, OPTION_KILL_ATS}, | |
213 | {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES}, | |
214 | {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP}, | |
215 | {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP}, | |
216 | {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME}, | |
217 | {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS}, | |
218 | /* getopt() allows abbreviations, so we do this to stop it from | |
219 | treating -c as an abbreviation for these --compat-implib. */ | |
220 | {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT}, | |
221 | {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT}, | |
222 | {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE}, | |
223 | {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE}, | |
224 | {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX}, | |
225 | {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES}, | |
226 | {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT}, | |
227 | {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT}, | |
228 | {"enable-extra-pep-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG}, | |
229 | {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC}, | |
230 | {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC}, | |
231 | #endif | |
232 | {NULL, no_argument, NULL, 0} | |
233 | }; | |
234 | ||
235 | *longopts = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); | |
236 | memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); | |
237 | } | |
238 | ||
239 | /* PE/WIN32; added routines to get the subsystem type, heap and/or stack | |
240 | parameters which may be input from the command line. */ | |
241 | ||
242 | typedef struct | |
243 | { | |
244 | void *ptr; | |
245 | int size; | |
246 | int value; | |
247 | char *symbol; | |
248 | int inited; | |
249 | } definfo; | |
250 | ||
251 | #define D(field,symbol,def) {&pep.field,sizeof(pep.field), def, symbol,0} | |
252 | ||
253 | static definfo init[] = | |
254 | { | |
255 | /* imagebase must be first */ | |
256 | #define IMAGEBASEOFF 0 | |
257 | D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE), | |
258 | #define DLLOFF 1 | |
259 | {&dll, sizeof(dll), 0, "__dll__", 0}, | |
260 | #define MSIMAGEBASEOFF 2 | |
261 | D(ImageBase,"__ImageBase", NT_EXE_IMAGE_BASE), | |
262 | D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT), | |
263 | D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT), | |
264 | D(MajorOperatingSystemVersion,"__major_os_version__", 4), | |
265 | D(MinorOperatingSystemVersion,"__minor_os_version__", 0), | |
266 | D(MajorImageVersion,"__major_image_version__", 0), | |
267 | D(MinorImageVersion,"__minor_image_version__", 0), | |
268 | D(MajorSubsystemVersion,"__major_subsystem_version__", 5), | |
269 | D(MinorSubsystemVersion,"__minor_subsystem_version__", 2), | |
270 | D(Subsystem,"__subsystem__", ${SUBSYSTEM}), | |
271 | D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000), | |
272 | D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000), | |
273 | D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000), | |
274 | D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000), | |
275 | D(LoaderFlags,"__loader_flags__", 0x0), | |
276 | { NULL, 0, 0, NULL, 0 } | |
277 | }; | |
278 | ||
279 | ||
280 | static void | |
281 | gld_${EMULATION_NAME}_list_options (FILE *file) | |
282 | { | |
283 | fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n")); | |
284 | fprintf (file, _(" --dll Set image base to the default for DLLs\n")); | |
285 | fprintf (file, _(" --file-alignment <size> Set file alignment\n")); | |
286 | fprintf (file, _(" --heap <size> Set initial size of the heap\n")); | |
287 | fprintf (file, _(" --image-base <address> Set start address of the executable\n")); | |
288 | fprintf (file, _(" --major-image-version <number> Set version number of the executable\n")); | |
289 | fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n")); | |
290 | fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n")); | |
291 | fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n")); | |
292 | fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n")); | |
293 | fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n")); | |
294 | fprintf (file, _(" --section-alignment <size> Set section alignment\n")); | |
295 | fprintf (file, _(" --stack <size> Set size of the initial stack\n")); | |
296 | fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n")); | |
297 | fprintf (file, _(" --support-old-code Support interworking with old code\n")); | |
298 | #ifdef DLL_SUPPORT | |
299 | fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n")); | |
300 | fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n")); | |
301 | fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n")); | |
302 | fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n")); | |
303 | fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n")); | |
304 | fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n")); | |
305 | fprintf (file, _(" --kill-at Remove @nn from exported symbols\n")); | |
306 | fprintf (file, _(" --out-implib <file> Generate import library\n")); | |
307 | fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n")); | |
308 | fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n")); | |
309 | fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\ | |
310 | create __imp_<SYMBOL> as well.\n")); | |
311 | fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\ | |
312 | unless user specifies one\n")); | |
313 | fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n")); | |
314 | fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\ | |
315 | an importlib, use <string><basename>.dll\n\ | |
316 | in preference to lib<basename>.dll \n")); | |
317 | fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to\n\ | |
318 | __imp_sym for DATA references\n")); | |
319 | fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n")); | |
320 | fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\ | |
321 | adding pseudo-relocations resolved at\n\ | |
322 | runtime.\n")); | |
323 | fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\ | |
324 | auto-imported DATA.\n")); | |
325 | fprintf (file, _(" --enable-extra-pep-debug Enable verbose debug output when building\n\ | |
326 | or linking to DLLs (esp. auto-import)\n")); | |
327 | #endif | |
328 | } | |
329 | ||
330 | ||
331 | static void | |
332 | set_pep_name (char *name, long val) | |
333 | { | |
334 | int i; | |
335 | ||
336 | /* Find the name and set it. */ | |
337 | for (i = 0; init[i].ptr; i++) | |
338 | { | |
339 | if (strcmp (name, init[i].symbol) == 0) | |
340 | { | |
341 | init[i].value = val; | |
342 | init[i].inited = 1; | |
343 | if (strcmp (name,"__image_base__") == 0) | |
344 | set_pep_name ("__ImageBase", val); | |
345 | return; | |
346 | } | |
347 | } | |
348 | abort (); | |
349 | } | |
350 | ||
351 | ||
352 | static void | |
353 | set_pep_subsystem (void) | |
354 | { | |
355 | const char *sver; | |
356 | const char *entry; | |
357 | const char *initial_symbol_char; | |
358 | char *end; | |
359 | int len; | |
360 | int i; | |
361 | int subsystem; | |
362 | unsigned long temp_subsystem; | |
363 | static const struct | |
364 | { | |
365 | const char *name; | |
366 | const int value; | |
367 | const char *entry; | |
368 | } | |
369 | v[] = | |
370 | { | |
371 | { "native", 1, "NtProcessStartup" }, | |
372 | { "windows", 2, "WinMainCRTStartup" }, | |
373 | { "console", 3, "mainCRTStartup" }, | |
374 | { "posix", 7, "__PosixProcessStartup"}, | |
375 | { "wince", 9, "_WinMainCRTStartup" }, | |
376 | { "xbox", 14, "mainCRTStartup" }, | |
377 | { NULL, 0, NULL } | |
378 | }; | |
379 | /* Entry point name for arbitrary subsystem numbers. */ | |
380 | static const char default_entry[] = "mainCRTStartup"; | |
381 | ||
382 | /* Check for the presence of a version number. */ | |
383 | sver = strchr (optarg, ':'); | |
384 | if (sver == NULL) | |
385 | len = strlen (optarg); | |
386 | else | |
387 | { | |
388 | len = sver - optarg; | |
389 | set_pep_name ("__major_subsystem_version__", | |
390 | strtoul (sver + 1, &end, 0)); | |
391 | if (*end == '.') | |
392 | set_pep_name ("__minor_subsystem_version__", | |
393 | strtoul (end + 1, &end, 0)); | |
394 | if (*end != '\0') | |
395 | einfo (_("%P: warning: bad version number in -subsystem option\n")); | |
396 | } | |
397 | ||
398 | /* Check for numeric subsystem. */ | |
399 | temp_subsystem = strtoul (optarg, & end, 0); | |
400 | if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536)) | |
401 | { | |
402 | /* Search list for a numeric match to use its entry point. */ | |
403 | for (i = 0; v[i].name; i++) | |
404 | if (v[i].value == (int) temp_subsystem) | |
405 | break; | |
406 | ||
407 | /* If no match, use the default. */ | |
408 | if (v[i].name != NULL) | |
409 | entry = v[i].entry; | |
410 | else | |
411 | entry = default_entry; | |
412 | ||
413 | /* Use this subsystem. */ | |
414 | subsystem = (int) temp_subsystem; | |
415 | } | |
416 | else | |
417 | { | |
418 | /* Search for subsystem by name. */ | |
419 | for (i = 0; v[i].name; i++) | |
420 | if (strncmp (optarg, v[i].name, len) == 0 | |
421 | && v[i].name[len] == '\0') | |
422 | break; | |
423 | ||
424 | if (v[i].name == NULL) | |
425 | { | |
426 | einfo (_("%P%F: invalid subsystem type %s\n"), optarg); | |
427 | return; | |
428 | } | |
429 | ||
430 | entry = v[i].entry; | |
431 | subsystem = v[i].value; | |
432 | } | |
433 | ||
434 | set_pep_name ("__subsystem__", subsystem); | |
435 | ||
436 | initial_symbol_char = ${INITIAL_SYMBOL_CHAR}; | |
437 | if (*initial_symbol_char != '\0') | |
438 | { | |
439 | char *alc_entry; | |
440 | ||
441 | /* lang_default_entry expects its argument to be permanently | |
442 | allocated, so we don't free this string. */ | |
443 | alc_entry = xmalloc (strlen (initial_symbol_char) | |
444 | + strlen (entry) | |
445 | + 1); | |
446 | strcpy (alc_entry, initial_symbol_char); | |
447 | strcat (alc_entry, entry); | |
448 | entry = alc_entry; | |
449 | } | |
450 | ||
451 | lang_default_entry (entry); | |
452 | ||
453 | return; | |
454 | } | |
455 | ||
456 | ||
457 | static void | |
458 | set_pep_value (char *name) | |
459 | { | |
460 | char *end; | |
461 | ||
462 | set_pep_name (name, strtoul (optarg, &end, 0)); | |
463 | ||
464 | if (end == optarg) | |
465 | einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg); | |
466 | ||
467 | optarg = end; | |
468 | } | |
469 | ||
470 | ||
471 | static void | |
472 | set_pep_stack_heap (char *resname, char *comname) | |
473 | { | |
474 | set_pep_value (resname); | |
475 | ||
476 | if (*optarg == ',') | |
477 | { | |
478 | optarg++; | |
479 | set_pep_value (comname); | |
480 | } | |
481 | else if (*optarg) | |
482 | einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg); | |
483 | } | |
484 | ||
485 | ||
486 | static bfd_boolean | |
487 | gld${EMULATION_NAME}_handle_option (int optc) | |
488 | { | |
489 | switch (optc) | |
490 | { | |
491 | default: | |
492 | return FALSE; | |
493 | ||
494 | case OPTION_BASE_FILE: | |
495 | link_info.base_file = fopen (optarg, FOPEN_WB); | |
496 | if (link_info.base_file == NULL) | |
497 | { | |
498 | /* xgettext:c-format */ | |
499 | fprintf (stderr, _("%s: Can't open base file %s\n"), | |
500 | program_name, optarg); | |
501 | xexit (1); | |
502 | } | |
503 | break; | |
504 | ||
505 | /* PE options. */ | |
506 | case OPTION_HEAP: | |
507 | set_pep_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__"); | |
508 | break; | |
509 | case OPTION_STACK: | |
510 | set_pep_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__"); | |
511 | break; | |
512 | case OPTION_SUBSYSTEM: | |
513 | set_pep_subsystem (); | |
514 | break; | |
515 | case OPTION_MAJOR_OS_VERSION: | |
516 | set_pep_value ("__major_os_version__"); | |
517 | break; | |
518 | case OPTION_MINOR_OS_VERSION: | |
519 | set_pep_value ("__minor_os_version__"); | |
520 | break; | |
521 | case OPTION_MAJOR_SUBSYSTEM_VERSION: | |
522 | set_pep_value ("__major_subsystem_version__"); | |
523 | break; | |
524 | case OPTION_MINOR_SUBSYSTEM_VERSION: | |
525 | set_pep_value ("__minor_subsystem_version__"); | |
526 | break; | |
527 | case OPTION_MAJOR_IMAGE_VERSION: | |
528 | set_pep_value ("__major_image_version__"); | |
529 | break; | |
530 | case OPTION_MINOR_IMAGE_VERSION: | |
531 | set_pep_value ("__minor_image_version__"); | |
532 | break; | |
533 | case OPTION_FILE_ALIGNMENT: | |
534 | set_pep_value ("__file_alignment__"); | |
535 | break; | |
536 | case OPTION_SECTION_ALIGNMENT: | |
537 | set_pep_value ("__section_alignment__"); | |
538 | break; | |
539 | case OPTION_DLL: | |
540 | set_pep_name ("__dll__", 1); | |
541 | break; | |
542 | case OPTION_IMAGE_BASE: | |
543 | set_pep_value ("__image_base__"); | |
544 | break; | |
545 | case OPTION_SUPPORT_OLD_CODE: | |
546 | support_old_code = 1; | |
547 | break; | |
548 | #ifdef DLL_SUPPORT | |
549 | case OPTION_OUT_DEF: | |
550 | pep_out_def_filename = xstrdup (optarg); | |
551 | break; | |
552 | case OPTION_EXPORT_ALL: | |
553 | pep_dll_export_everything = 1; | |
554 | break; | |
555 | case OPTION_EXCLUDE_SYMBOLS: | |
556 | pep_dll_add_excludes (optarg, 0); | |
557 | break; | |
558 | case OPTION_EXCLUDE_LIBS: | |
559 | pep_dll_add_excludes (optarg, 1); | |
560 | break; | |
561 | case OPTION_KILL_ATS: | |
562 | pep_dll_kill_ats = 1; | |
563 | break; | |
564 | case OPTION_STDCALL_ALIASES: | |
565 | pep_dll_stdcall_aliases = 1; | |
566 | break; | |
567 | case OPTION_ENABLE_STDCALL_FIXUP: | |
568 | pep_enable_stdcall_fixup = 1; | |
569 | break; | |
570 | case OPTION_DISABLE_STDCALL_FIXUP: | |
571 | pep_enable_stdcall_fixup = 0; | |
572 | break; | |
573 | case OPTION_IMPLIB_FILENAME: | |
574 | pep_implib_filename = xstrdup (optarg); | |
575 | break; | |
576 | case OPTION_WARN_DUPLICATE_EXPORTS: | |
577 | pep_dll_warn_dup_exports = 1; | |
578 | break; | |
579 | case OPTION_IMP_COMPAT: | |
580 | pep_dll_compat_implib = 1; | |
581 | break; | |
582 | case OPTION_ENABLE_AUTO_IMAGE_BASE: | |
583 | pep_enable_auto_image_base = 1; | |
584 | break; | |
585 | case OPTION_DISABLE_AUTO_IMAGE_BASE: | |
586 | pep_enable_auto_image_base = 0; | |
587 | break; | |
588 | case OPTION_DLL_SEARCH_PREFIX: | |
589 | pep_dll_search_prefix = xstrdup (optarg); | |
590 | break; | |
591 | case OPTION_NO_DEFAULT_EXCLUDES: | |
592 | pep_dll_do_default_excludes = 0; | |
593 | break; | |
594 | case OPTION_DLL_ENABLE_AUTO_IMPORT: | |
595 | link_info.pei386_auto_import = 1; | |
596 | break; | |
597 | case OPTION_DLL_DISABLE_AUTO_IMPORT: | |
598 | link_info.pei386_auto_import = 0; | |
599 | break; | |
600 | case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC: | |
601 | link_info.pei386_runtime_pseudo_reloc = 1; | |
602 | break; | |
603 | case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC: | |
604 | link_info.pei386_runtime_pseudo_reloc = 0; | |
605 | break; | |
606 | case OPTION_ENABLE_EXTRA_PE_DEBUG: | |
607 | pep_dll_extra_pe_debug = 1; | |
608 | break; | |
609 | #endif | |
610 | } | |
611 | return TRUE; | |
612 | } | |
613 | \f | |
614 | ||
615 | #ifdef DLL_SUPPORT | |
616 | static unsigned long | |
617 | strhash (const char *str) | |
618 | { | |
619 | const unsigned char *s; | |
620 | unsigned long hash; | |
621 | unsigned int c; | |
622 | unsigned int len; | |
623 | ||
624 | hash = 0; | |
625 | len = 0; | |
626 | s = (const unsigned char *) str; | |
627 | while ((c = *s++) != '\0') | |
628 | { | |
629 | hash += c + (c << 17); | |
630 | hash ^= hash >> 2; | |
631 | ++len; | |
632 | } | |
633 | hash += len + (len << 17); | |
634 | hash ^= hash >> 2; | |
635 | ||
636 | return hash; | |
637 | } | |
638 | ||
639 | /* Use the output file to create a image base for relocatable DLLs. */ | |
640 | ||
641 | static unsigned long | |
642 | compute_dll_image_base (const char *ofile) | |
643 | { | |
644 | unsigned long hash = strhash (ofile); | |
645 | return 0x61300000 + ((hash << 16) & 0x0FFC0000); | |
646 | } | |
647 | #endif | |
648 | ||
649 | /* Assign values to the special symbols before the linker script is | |
650 | read. */ | |
651 | ||
652 | static void | |
653 | gld_${EMULATION_NAME}_set_symbols (void) | |
654 | { | |
655 | /* Run through and invent symbols for all the | |
656 | names and insert the defaults. */ | |
657 | int j; | |
658 | lang_statement_list_type *save; | |
659 | ||
660 | if (!init[IMAGEBASEOFF].inited) | |
661 | { | |
662 | if (link_info.relocatable) | |
663 | init[IMAGEBASEOFF].value = 0; | |
664 | else if (init[DLLOFF].value || (link_info.shared && !link_info.pie)) | |
665 | #ifdef DLL_SUPPORT | |
666 | init[IMAGEBASEOFF].value = (pep_enable_auto_image_base) ? | |
667 | compute_dll_image_base (output_filename) : NT_DLL_IMAGE_BASE; | |
668 | #else | |
669 | init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE; | |
670 | #endif | |
671 | else | |
672 | init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE; | |
673 | init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value; | |
674 | } | |
675 | ||
676 | /* Don't do any symbol assignments if this is a relocatable link. */ | |
677 | if (link_info.relocatable) | |
678 | return; | |
679 | ||
680 | /* Glue the assignments into the abs section. */ | |
681 | save = stat_ptr; | |
682 | ||
683 | stat_ptr = &(abs_output_section->children); | |
684 | ||
685 | for (j = 0; init[j].ptr; j++) | |
686 | { | |
687 | long val = init[j].value; | |
688 | lang_assignment_statement_type *rv; | |
689 | rv = lang_add_assignment (exp_assop ('=', init[j].symbol, | |
690 | exp_intop (val))); | |
691 | if (init[j].size == sizeof (short)) | |
692 | *(short *) init[j].ptr = val; | |
693 | else if (init[j].size == sizeof (int)) | |
694 | *(int *) init[j].ptr = val; | |
695 | else if (init[j].size == sizeof (long)) | |
696 | *(long *) init[j].ptr = val; | |
697 | /* This might be a long long or other special type. */ | |
698 | else if (init[j].size == sizeof (bfd_vma)) | |
699 | *(bfd_vma *) init[j].ptr = val; | |
700 | else abort (); | |
701 | if (j == IMAGEBASEOFF) | |
702 | image_base_statement = rv; | |
703 | } | |
704 | /* Restore the pointer. */ | |
705 | stat_ptr = save; | |
706 | ||
707 | if (pep.FileAlignment > pep.SectionAlignment) | |
708 | { | |
709 | einfo (_("%P: warning, file alignment > section alignment.\n")); | |
710 | } | |
711 | } | |
712 | ||
713 | /* This is called after the linker script and the command line options | |
714 | have been read. */ | |
715 | ||
716 | static void | |
717 | gld_${EMULATION_NAME}_after_parse (void) | |
718 | { | |
719 | /* The Windows libraries are designed for the linker to treat the | |
720 | entry point as an undefined symbol. Otherwise, the .obj that | |
721 | defines mainCRTStartup is brought in because it is the first | |
722 | encountered in libc.lib and it has other symbols in it which will | |
723 | be pulled in by the link process. To avoid this, we act as | |
724 | though the user specified -u with the entry point symbol. | |
725 | ||
726 | This function is called after the linker script and command line | |
727 | options have been read, so at this point we know the right entry | |
728 | point. This function is called before the input files are | |
729 | opened, so registering the symbol as undefined will make a | |
730 | difference. */ | |
731 | ||
732 | if (! link_info.relocatable && entry_symbol.name != NULL) | |
733 | ldlang_add_undef (entry_symbol.name); | |
734 | } | |
735 | ||
736 | /* pep-dll.c directly accesses pep_data_import_dll, | |
737 | so it must be defined outside of #ifdef DLL_SUPPORT. | |
738 | Note - this variable is deliberately not initialised. | |
739 | This allows it to be treated as a common varaible, and only | |
740 | exist in one incarnation in a multiple target enabled linker. */ | |
741 | char * pep_data_import_dll; | |
742 | ||
743 | #ifdef DLL_SUPPORT | |
744 | static struct bfd_link_hash_entry *pep_undef_found_sym; | |
745 | ||
746 | static bfd_boolean | |
747 | pep_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf) | |
748 | { | |
749 | int sl; | |
750 | char *string = inf; | |
751 | ||
752 | sl = strlen (string); | |
753 | if (h->type == bfd_link_hash_defined | |
754 | && strncmp (h->root.string, string, sl) == 0 | |
755 | && h->root.string[sl] == '@') | |
756 | { | |
757 | pep_undef_found_sym = h; | |
758 | return FALSE; | |
759 | } | |
760 | return TRUE; | |
761 | } | |
762 | ||
763 | static void | |
764 | pep_fixup_stdcalls (void) | |
765 | { | |
766 | static int gave_warning_message = 0; | |
767 | struct bfd_link_hash_entry *undef, *sym; | |
768 | ||
769 | if (pep_dll_extra_pe_debug) | |
770 | printf ("%s\n", __FUNCTION__); | |
771 | ||
772 | for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next) | |
773 | if (undef->type == bfd_link_hash_undefined) | |
774 | { | |
775 | char* at = strchr (undef->root.string, '@'); | |
776 | int lead_at = (*undef->root.string == '@'); | |
777 | /* For now, don't try to fixup fastcall symbols. */ | |
778 | ||
779 | if (at && !lead_at) | |
780 | { | |
781 | /* The symbol is a stdcall symbol, so let's look for a | |
782 | cdecl symbol with the same name and resolve to that. */ | |
783 | char *cname = xstrdup (undef->root.string /* + lead_at */); | |
784 | at = strchr (cname, '@'); | |
785 | *at = 0; | |
786 | sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1); | |
787 | ||
788 | if (sym && sym->type == bfd_link_hash_defined) | |
789 | { | |
790 | undef->type = bfd_link_hash_defined; | |
791 | undef->u.def.value = sym->u.def.value; | |
792 | undef->u.def.section = sym->u.def.section; | |
793 | ||
794 | if (pep_enable_stdcall_fixup == -1) | |
795 | { | |
796 | einfo (_("Warning: resolving %s by linking to %s\n"), | |
797 | undef->root.string, cname); | |
798 | if (! gave_warning_message) | |
799 | { | |
800 | gave_warning_message = 1; | |
801 | einfo (_("Use --enable-stdcall-fixup to disable these warnings\n")); | |
802 | einfo (_("Use --disable-stdcall-fixup to disable these fixups\n")); | |
803 | } | |
804 | } | |
805 | } | |
806 | } | |
807 | else | |
808 | { | |
809 | /* The symbol is a cdecl symbol, so we look for stdcall | |
810 | symbols - which means scanning the whole symbol table. */ | |
811 | pep_undef_found_sym = 0; | |
812 | bfd_link_hash_traverse (link_info.hash, pep_undef_cdecl_match, | |
813 | (char *) undef->root.string); | |
814 | sym = pep_undef_found_sym; | |
815 | if (sym) | |
816 | { | |
817 | undef->type = bfd_link_hash_defined; | |
818 | undef->u.def.value = sym->u.def.value; | |
819 | undef->u.def.section = sym->u.def.section; | |
820 | ||
821 | if (pep_enable_stdcall_fixup == -1) | |
822 | { | |
823 | einfo (_("Warning: resolving %s by linking to %s\n"), | |
824 | undef->root.string, sym->root.string); | |
825 | if (! gave_warning_message) | |
826 | { | |
827 | gave_warning_message = 1; | |
828 | einfo (_("Use --enable-stdcall-fixup to disable these warnings\n")); | |
829 | einfo (_("Use --disable-stdcall-fixup to disable these fixups\n")); | |
830 | } | |
831 | } | |
832 | } | |
833 | } | |
834 | } | |
835 | } | |
836 | ||
837 | static int | |
838 | make_import_fixup (arelent *rel, asection *s) | |
839 | { | |
840 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; | |
841 | char addend[4]; | |
842 | ||
843 | if (pep_dll_extra_pe_debug) | |
844 | printf ("arelent: %s@%#lx: add=%li\n", sym->name, | |
845 | (long) rel->address, (long) rel->addend); | |
846 | ||
847 | if (! bfd_get_section_contents (s->owner, s, addend, rel->address, sizeof (addend))) | |
848 | einfo (_("%C: Cannot get section contents - auto-import exception\n"), | |
849 | s->owner, s, rel->address); | |
850 | ||
851 | pep_create_import_fixup (rel, s, bfd_get_32 (s->owner, addend)); | |
852 | ||
853 | return 1; | |
854 | } | |
855 | ||
856 | static void | |
857 | pep_find_data_imports (void) | |
858 | { | |
859 | struct bfd_link_hash_entry *undef, *sym; | |
860 | ||
861 | if (link_info.pei386_auto_import == 0) | |
862 | return; | |
863 | ||
864 | for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next) | |
865 | { | |
866 | if (undef->type == bfd_link_hash_undefined) | |
867 | { | |
868 | /* C++ symbols are *long*. */ | |
869 | char buf[4096]; | |
870 | ||
871 | if (pep_dll_extra_pe_debug) | |
872 | printf ("%s:%s\n", __FUNCTION__, undef->root.string); | |
873 | ||
874 | sprintf (buf, "__imp_%s", undef->root.string); | |
875 | ||
876 | sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1); | |
877 | ||
878 | if (sym && sym->type == bfd_link_hash_defined) | |
879 | { | |
880 | bfd *b = sym->u.def.section->owner; | |
881 | asymbol **symbols; | |
882 | int nsyms, symsize, i; | |
883 | ||
884 | if (link_info.pei386_auto_import == -1) | |
885 | info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"), | |
886 | undef->root.string, buf); | |
887 | ||
888 | symsize = bfd_get_symtab_upper_bound (b); | |
889 | symbols = xmalloc (symsize); | |
890 | nsyms = bfd_canonicalize_symtab (b, symbols); | |
891 | ||
892 | for (i = 0; i < nsyms; i++) | |
893 | { | |
894 | if (! CONST_STRNEQ (symbols[i]->name, "__head_")) | |
895 | continue; | |
896 | ||
897 | if (pep_dll_extra_pe_debug) | |
898 | printf ("->%s\n", symbols[i]->name); | |
899 | ||
900 | pep_data_import_dll = (char*) (symbols[i]->name + | |
901 | sizeof ("__head_") - 1); | |
902 | break; | |
903 | } | |
904 | ||
905 | pep_walk_relocs_of_symbol (&link_info, undef->root.string, | |
906 | make_import_fixup); | |
907 | ||
908 | /* Let's differentiate it somehow from defined. */ | |
909 | undef->type = bfd_link_hash_defweak; | |
910 | /* We replace original name with __imp_ prefixed, this | |
911 | 1) may trash memory 2) leads to duplicate symbol generation. | |
912 | Still, IMHO it's better than having name poluted. */ | |
913 | undef->root.string = sym->root.string; | |
914 | undef->u.def.value = sym->u.def.value; | |
915 | undef->u.def.section = sym->u.def.section; | |
916 | } | |
917 | } | |
918 | } | |
919 | } | |
920 | ||
921 | static bfd_boolean | |
922 | pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
923 | { | |
924 | if (pep_dll_extra_pe_debug) | |
925 | printf ("+%s\n", h->string); | |
926 | ||
927 | return TRUE; | |
928 | } | |
929 | #endif /* DLL_SUPPORT */ | |
930 | ||
931 | ||
932 | static void | |
933 | gld_${EMULATION_NAME}_after_open (void) | |
934 | { | |
935 | #ifdef DLL_SUPPORT | |
936 | if (pep_dll_extra_pe_debug) | |
937 | { | |
938 | bfd *a; | |
939 | struct bfd_link_hash_entry *sym; | |
940 | ||
941 | printf ("%s()\n", __FUNCTION__); | |
942 | ||
943 | for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next) | |
944 | printf ("-%s\n", sym->root.string); | |
945 | bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL); | |
946 | ||
947 | for (a = link_info.input_bfds; a; a = a->link_next) | |
948 | printf ("*%s\n",a->filename); | |
949 | } | |
950 | #endif | |
951 | ||
952 | /* Pass the wacky PE command line options into the output bfd. | |
953 | FIXME: This should be done via a function, rather than by | |
954 | including an internal BFD header. */ | |
955 | ||
956 | if (coff_data (output_bfd) == NULL || coff_data (output_bfd)->pe == 0) | |
957 | einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"), output_bfd); | |
958 | ||
959 | pe_data (output_bfd)->pe_opthdr = pep; | |
960 | pe_data (output_bfd)->dll = init[DLLOFF].value; | |
961 | pe_data (output_bfd)->real_flags |= real_flags; | |
962 | ||
963 | #ifdef DLL_SUPPORT | |
964 | if (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */ | |
965 | pep_fixup_stdcalls (); | |
966 | ||
967 | pep_process_import_defs (output_bfd, & link_info); | |
968 | ||
969 | pep_find_data_imports (); | |
970 | ||
971 | #ifndef TARGET_IS_i386pep | |
972 | if (link_info.shared) | |
973 | #else | |
974 | if (!link_info.relocatable) | |
975 | #endif | |
976 | pep_dll_build_sections (output_bfd, &link_info); | |
977 | ||
978 | #ifndef TARGET_IS_i386pep | |
979 | else | |
980 | pep_exe_build_sections (output_bfd, &link_info); | |
981 | #endif | |
982 | #endif /* DLL_SUPPORT */ | |
983 | ||
984 | { | |
985 | /* This next chunk of code tries to detect the case where you have | |
986 | two import libraries for the same DLL (specifically, | |
987 | symbolically linking libm.a and libc.a in cygwin to | |
988 | libcygwin.a). In those cases, it's possible for function | |
989 | thunks from the second implib to be used but without the | |
990 | head/tail objects, causing an improper import table. We detect | |
991 | those cases and rename the "other" import libraries to match | |
992 | the one the head/tail come from, so that the linker will sort | |
993 | things nicely and produce a valid import table. */ | |
994 | ||
995 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
996 | { | |
997 | if (is->the_bfd->my_archive) | |
998 | { | |
999 | int idata2 = 0, reloc_count=0, is_imp = 0; | |
1000 | asection *sec; | |
1001 | ||
1002 | /* See if this is an import library thunk. */ | |
1003 | for (sec = is->the_bfd->sections; sec; sec = sec->next) | |
1004 | { | |
1005 | if (strcmp (sec->name, ".idata\$2") == 0) | |
1006 | idata2 = 1; | |
1007 | if (CONST_STRNEQ (sec->name, ".idata\$")) | |
1008 | is_imp = 1; | |
1009 | reloc_count += sec->reloc_count; | |
1010 | } | |
1011 | ||
1012 | if (is_imp && !idata2 && reloc_count) | |
1013 | { | |
1014 | /* It is, look for the reference to head and see if it's | |
1015 | from our own library. */ | |
1016 | for (sec = is->the_bfd->sections; sec; sec = sec->next) | |
1017 | { | |
1018 | int i; | |
1019 | long symsize; | |
1020 | long relsize; | |
1021 | asymbol **symbols; | |
1022 | arelent **relocs; | |
1023 | int nrelocs; | |
1024 | ||
1025 | symsize = bfd_get_symtab_upper_bound (is->the_bfd); | |
1026 | if (symsize < 1) | |
1027 | break; | |
1028 | relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec); | |
1029 | if (relsize < 1) | |
1030 | break; | |
1031 | ||
1032 | symbols = xmalloc (symsize); | |
1033 | symsize = bfd_canonicalize_symtab (is->the_bfd, symbols); | |
1034 | if (symsize < 0) | |
1035 | { | |
1036 | einfo ("%X%P: unable to process symbols: %E"); | |
1037 | return; | |
1038 | } | |
1039 | ||
1040 | relocs = xmalloc ((size_t) relsize); | |
1041 | nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec, | |
1042 | relocs, symbols); | |
1043 | if (nrelocs < 0) | |
1044 | { | |
1045 | free (relocs); | |
1046 | einfo ("%X%P: unable to process relocs: %E"); | |
1047 | return; | |
1048 | } | |
1049 | ||
1050 | for (i = 0; i < nrelocs; i++) | |
1051 | { | |
1052 | struct bfd_symbol *s; | |
1053 | struct bfd_link_hash_entry * blhe; | |
1054 | char *other_bfd_filename; | |
1055 | char *n; | |
1056 | ||
1057 | s = (relocs[i]->sym_ptr_ptr)[0]; | |
1058 | ||
1059 | if (s->flags & BSF_LOCAL) | |
1060 | continue; | |
1061 | ||
1062 | /* Thunk section with reloc to another bfd. */ | |
1063 | blhe = bfd_link_hash_lookup (link_info.hash, | |
1064 | s->name, | |
1065 | FALSE, FALSE, TRUE); | |
1066 | ||
1067 | if (blhe == NULL | |
1068 | || blhe->type != bfd_link_hash_defined) | |
1069 | continue; | |
1070 | ||
1071 | other_bfd_filename | |
1072 | = blhe->u.def.section->owner->my_archive | |
1073 | ? bfd_get_filename (blhe->u.def.section->owner->my_archive) | |
1074 | : bfd_get_filename (blhe->u.def.section->owner); | |
1075 | ||
1076 | if (strcmp (bfd_get_filename (is->the_bfd->my_archive), | |
1077 | other_bfd_filename) == 0) | |
1078 | continue; | |
1079 | ||
1080 | /* Rename this implib to match the other one. */ | |
1081 | n = xmalloc (strlen (other_bfd_filename) + 1); | |
1082 | strcpy (n, other_bfd_filename); | |
1083 | is->the_bfd->my_archive->filename = n; | |
1084 | } | |
1085 | ||
1086 | free (relocs); | |
1087 | /* Note - we do not free the symbols, | |
1088 | they are now cached in the BFD. */ | |
1089 | } | |
1090 | } | |
1091 | } | |
1092 | } | |
1093 | } | |
1094 | ||
1095 | { | |
1096 | int is_ms_arch = 0; | |
1097 | bfd *cur_arch = 0; | |
1098 | lang_input_statement_type *is2; | |
1099 | lang_input_statement_type *is3; | |
1100 | ||
1101 | /* Careful - this is a shell script. Watch those dollar signs! */ | |
1102 | /* Microsoft import libraries have every member named the same, | |
1103 | and not in the right order for us to link them correctly. We | |
1104 | must detect these and rename the members so that they'll link | |
1105 | correctly. There are three types of objects: the head, the | |
1106 | thunks, and the sentinel(s). The head is easy; it's the one | |
1107 | with idata2. We assume that the sentinels won't have relocs, | |
1108 | and the thunks will. It's easier than checking the symbol | |
1109 | table for external references. */ | |
1110 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
1111 | { | |
1112 | if (is->the_bfd->my_archive) | |
1113 | { | |
1114 | char *pnt; | |
1115 | bfd *arch = is->the_bfd->my_archive; | |
1116 | ||
1117 | if (cur_arch != arch) | |
1118 | { | |
1119 | cur_arch = arch; | |
1120 | is_ms_arch = 1; | |
1121 | ||
1122 | for (is3 = is; | |
1123 | is3 && is3->the_bfd->my_archive == arch; | |
1124 | is3 = (lang_input_statement_type *) is3->next) | |
1125 | { | |
1126 | /* A MS dynamic import library can also contain static | |
1127 | members, so look for the first element with a .dll | |
1128 | extension, and use that for the remainder of the | |
1129 | comparisons. */ | |
1130 | pnt = strrchr (is3->the_bfd->filename, '.'); | |
1131 | if (pnt != NULL && strcmp (pnt, ".dll") == 0) | |
1132 | break; | |
1133 | } | |
1134 | ||
1135 | if (is3 == NULL) | |
1136 | is_ms_arch = 0; | |
1137 | else | |
1138 | { | |
1139 | /* OK, found one. Now look to see if the remaining | |
1140 | (dynamic import) members use the same name. */ | |
1141 | for (is2 = is; | |
1142 | is2 && is2->the_bfd->my_archive == arch; | |
1143 | is2 = (lang_input_statement_type *) is2->next) | |
1144 | { | |
1145 | /* Skip static members, ie anything with a .obj | |
1146 | extension. */ | |
1147 | pnt = strrchr (is2->the_bfd->filename, '.'); | |
1148 | if (pnt != NULL && strcmp (pnt, ".obj") == 0) | |
1149 | continue; | |
1150 | ||
1151 | if (strcmp (is3->the_bfd->filename, | |
1152 | is2->the_bfd->filename)) | |
1153 | { | |
1154 | is_ms_arch = 0; | |
1155 | break; | |
1156 | } | |
1157 | } | |
1158 | } | |
1159 | } | |
1160 | ||
1161 | /* This fragment might have come from an .obj file in a Microsoft | |
1162 | import, and not an actual import record. If this is the case, | |
1163 | then leave the filename alone. */ | |
1164 | pnt = strrchr (is->the_bfd->filename, '.'); | |
1165 | ||
1166 | if (is_ms_arch && (strcmp (pnt, ".dll") == 0)) | |
1167 | { | |
1168 | int idata2 = 0, reloc_count=0; | |
1169 | asection *sec; | |
1170 | char *new_name, seq; | |
1171 | ||
1172 | for (sec = is->the_bfd->sections; sec; sec = sec->next) | |
1173 | { | |
1174 | if (strcmp (sec->name, ".idata\$2") == 0) | |
1175 | idata2 = 1; | |
1176 | reloc_count += sec->reloc_count; | |
1177 | } | |
1178 | ||
1179 | if (idata2) /* .idata2 is the TOC */ | |
1180 | seq = 'a'; | |
1181 | else if (reloc_count > 0) /* thunks */ | |
1182 | seq = 'b'; | |
1183 | else /* sentinel */ | |
1184 | seq = 'c'; | |
1185 | ||
1186 | new_name = xmalloc (strlen (is->the_bfd->filename) + 3); | |
1187 | sprintf (new_name, "%s.%c", is->the_bfd->filename, seq); | |
1188 | is->the_bfd->filename = new_name; | |
1189 | ||
1190 | new_name = xmalloc (strlen (is->filename) + 3); | |
1191 | sprintf (new_name, "%s.%c", is->filename, seq); | |
1192 | is->filename = new_name; | |
1193 | } | |
1194 | } | |
1195 | } | |
1196 | } | |
1197 | } | |
1198 | \f | |
1199 | static void | |
1200 | gld_${EMULATION_NAME}_before_allocation (void) | |
1201 | { | |
1202 | before_allocation_default (); | |
1203 | } | |
1204 | \f | |
1205 | #ifdef DLL_SUPPORT | |
1206 | /* This is called when an input file isn't recognized as a BFD. We | |
1207 | check here for .DEF files and pull them in automatically. */ | |
1208 | ||
1209 | static int | |
1210 | saw_option (char *option) | |
1211 | { | |
1212 | int i; | |
1213 | ||
1214 | for (i = 0; init[i].ptr; i++) | |
1215 | if (strcmp (init[i].symbol, option) == 0) | |
1216 | return init[i].inited; | |
1217 | return 0; | |
1218 | } | |
1219 | #endif /* DLL_SUPPORT */ | |
1220 | ||
1221 | static bfd_boolean | |
1222 | gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED) | |
1223 | { | |
1224 | #ifdef DLL_SUPPORT | |
1225 | const char *ext = entry->filename + strlen (entry->filename) - 4; | |
1226 | ||
1227 | if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0) | |
1228 | { | |
1229 | pep_def_file = def_file_parse (entry->filename, pep_def_file); | |
1230 | ||
1231 | if (pep_def_file) | |
1232 | { | |
1233 | int i, buflen=0, len; | |
1234 | char *buf; | |
1235 | ||
1236 | for (i = 0; i < pep_def_file->num_exports; i++) | |
1237 | { | |
1238 | len = strlen (pep_def_file->exports[i].internal_name); | |
1239 | if (buflen < len + 2) | |
1240 | buflen = len + 2; | |
1241 | } | |
1242 | ||
1243 | buf = xmalloc (buflen); | |
1244 | ||
1245 | for (i = 0; i < pep_def_file->num_exports; i++) | |
1246 | { | |
1247 | struct bfd_link_hash_entry *h; | |
1248 | ||
1249 | sprintf (buf, "_%s", pep_def_file->exports[i].internal_name); | |
1250 | ||
1251 | h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE); | |
1252 | if (h == (struct bfd_link_hash_entry *) NULL) | |
1253 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); | |
1254 | if (h->type == bfd_link_hash_new) | |
1255 | { | |
1256 | h->type = bfd_link_hash_undefined; | |
1257 | h->u.undef.abfd = NULL; | |
1258 | bfd_link_add_undef (link_info.hash, h); | |
1259 | } | |
1260 | } | |
1261 | free (buf); | |
1262 | ||
1263 | /* def_file_print (stdout, pep_def_file); */ | |
1264 | if (pep_def_file->is_dll == 1) | |
1265 | link_info.shared = 1; | |
1266 | ||
1267 | if (pep_def_file->base_address != (bfd_vma)(-1)) | |
1268 | { | |
1269 | pep.ImageBase = | |
1270 | pe_data (output_bfd)->pe_opthdr.ImageBase = | |
1271 | init[IMAGEBASEOFF].value = pep_def_file->base_address; | |
1272 | init[IMAGEBASEOFF].inited = 1; | |
1273 | if (image_base_statement) | |
1274 | image_base_statement->exp = | |
1275 | exp_assop ('=', "__image_base__", exp_intop (pep.ImageBase)); | |
1276 | } | |
1277 | ||
1278 | if (pep_def_file->stack_reserve != -1 | |
1279 | && ! saw_option ("__size_of_stack_reserve__")) | |
1280 | { | |
1281 | pep.SizeOfStackReserve = pep_def_file->stack_reserve; | |
1282 | if (pep_def_file->stack_commit != -1) | |
1283 | pep.SizeOfStackCommit = pep_def_file->stack_commit; | |
1284 | } | |
1285 | if (pep_def_file->heap_reserve != -1 | |
1286 | && ! saw_option ("__size_of_heap_reserve__")) | |
1287 | { | |
1288 | pep.SizeOfHeapReserve = pep_def_file->heap_reserve; | |
1289 | if (pep_def_file->heap_commit != -1) | |
1290 | pep.SizeOfHeapCommit = pep_def_file->heap_commit; | |
1291 | } | |
1292 | return TRUE; | |
1293 | } | |
1294 | } | |
1295 | #endif | |
1296 | return FALSE; | |
1297 | } | |
1298 | ||
1299 | static bfd_boolean | |
1300 | gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED) | |
1301 | { | |
1302 | #ifdef DLL_SUPPORT | |
1303 | #ifdef TARGET_IS_i386pep | |
1304 | pep_dll_id_target ("pei-x86-64"); | |
1305 | #endif | |
1306 | if (bfd_get_format (entry->the_bfd) == bfd_object) | |
1307 | { | |
1308 | char fbuf[LD_PATHMAX + 1]; | |
1309 | const char *ext; | |
1310 | ||
1311 | if (REALPATH (entry->filename, fbuf) == NULL) | |
1312 | strncpy (fbuf, entry->filename, sizeof (fbuf)); | |
1313 | ||
1314 | ext = fbuf + strlen (fbuf) - 4; | |
1315 | ||
1316 | if (strcmp (ext, ".dll") == 0 || strcmp (ext, ".DLL") == 0) | |
1317 | return pep_implied_import_dll (fbuf); | |
1318 | } | |
1319 | #endif | |
1320 | return FALSE; | |
1321 | } | |
1322 | ||
1323 | static void | |
1324 | gld_${EMULATION_NAME}_finish (void) | |
1325 | { | |
1326 | finish_default (); | |
1327 | ||
1328 | #ifdef DLL_SUPPORT | |
1329 | if (link_info.shared | |
1330 | || (!link_info.relocatable && pep_def_file->num_exports != 0)) | |
1331 | { | |
1332 | pep_dll_fill_sections (output_bfd, &link_info); | |
1333 | if (pep_implib_filename) | |
1334 | pep_dll_generate_implib (pep_def_file, pep_implib_filename); | |
1335 | } | |
1336 | ||
1337 | if (pep_out_def_filename) | |
1338 | pep_dll_generate_def_file (pep_out_def_filename); | |
1339 | #endif /* DLL_SUPPORT */ | |
1340 | ||
1341 | /* I don't know where .idata gets set as code, but it shouldn't be. */ | |
1342 | { | |
1343 | asection *asec = bfd_get_section_by_name (output_bfd, ".idata"); | |
1344 | ||
1345 | if (asec) | |
1346 | { | |
1347 | asec->flags &= ~SEC_CODE; | |
1348 | asec->flags |= SEC_DATA; | |
1349 | } | |
1350 | } | |
1351 | } | |
1352 | ||
1353 | \f | |
1354 | /* Place an orphan section. | |
1355 | ||
1356 | We use this to put sections in a reasonable place in the file, and | |
1357 | to ensure that they are aligned as required. | |
1358 | ||
1359 | We handle grouped sections here as well. A section named .foo$nn | |
1360 | goes into the output section .foo. All grouped sections are sorted | |
1361 | by name. | |
1362 | ||
1363 | Grouped sections for the default sections are handled by the | |
1364 | default linker script using wildcards, and are sorted by | |
1365 | sort_sections. */ | |
1366 | ||
1367 | static bfd_boolean | |
1368 | gld_${EMULATION_NAME}_place_orphan (asection *s) | |
1369 | { | |
1370 | const char *secname; | |
1371 | const char *orig_secname; | |
1372 | char *dollar = NULL; | |
1373 | lang_output_section_statement_type *os; | |
1374 | lang_statement_list_type add_child; | |
1375 | ||
1376 | secname = bfd_get_section_name (s->owner, s); | |
1377 | ||
1378 | /* Look through the script to see where to place this section. */ | |
1379 | orig_secname = secname; | |
1380 | if (!link_info.relocatable | |
1381 | && (dollar = strchr (secname, '$')) != NULL) | |
1382 | { | |
1383 | size_t len = dollar - orig_secname; | |
1384 | char *newname = xmalloc (len + 1); | |
1385 | memcpy (newname, orig_secname, len); | |
1386 | newname[len] = '\0'; | |
1387 | secname = newname; | |
1388 | } | |
1389 | ||
1390 | os = lang_output_section_find (secname); | |
1391 | ||
1392 | lang_list_init (&add_child); | |
1393 | ||
1394 | if (os != NULL | |
1395 | && (os->bfd_section == NULL | |
1396 | || os->bfd_section->flags == 0 | |
1397 | || ((s->flags ^ os->bfd_section->flags) | |
1398 | & (SEC_LOAD | SEC_ALLOC)) == 0)) | |
1399 | { | |
1400 | /* We already have an output section statement with this | |
1401 | name, and its bfd section, if any, has compatible flags. | |
1402 | If the section already exists but does not have any flags set, | |
1403 | then it has been created by the linker, probably as a result of | |
1404 | a --section-start command line switch. */ | |
1405 | lang_add_section (&add_child, s, os); | |
1406 | } | |
1407 | else | |
1408 | { | |
1409 | static struct orphan_save hold[] = | |
1410 | { | |
1411 | { ".text", | |
1412 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE, | |
1413 | 0, 0, 0, 0 }, | |
1414 | { ".rdata", | |
1415 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1416 | 0, 0, 0, 0 }, | |
1417 | { ".data", | |
1418 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA, | |
1419 | 0, 0, 0, 0 }, | |
1420 | { ".bss", | |
1421 | SEC_ALLOC, | |
1422 | 0, 0, 0, 0 } | |
1423 | }; | |
1424 | enum orphan_save_index | |
1425 | { | |
1426 | orphan_text = 0, | |
1427 | orphan_rodata, | |
1428 | orphan_data, | |
1429 | orphan_bss | |
1430 | }; | |
1431 | static int orphan_init_done = 0; | |
1432 | struct orphan_save *place; | |
1433 | lang_output_section_statement_type *after; | |
1434 | etree_type *address; | |
1435 | ||
1436 | if (!orphan_init_done) | |
1437 | { | |
1438 | struct orphan_save *ho; | |
1439 | for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho) | |
1440 | if (ho->name != NULL) | |
1441 | { | |
1442 | ho->os = lang_output_section_find (ho->name); | |
1443 | if (ho->os != NULL && ho->os->flags == 0) | |
1444 | ho->os->flags = ho->flags; | |
1445 | } | |
1446 | orphan_init_done = 1; | |
1447 | } | |
1448 | ||
1449 | /* Try to put the new output section in a reasonable place based | |
1450 | on the section name and section flags. */ | |
1451 | ||
1452 | place = NULL; | |
1453 | if ((s->flags & SEC_ALLOC) == 0) | |
1454 | ; | |
1455 | else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
1456 | place = &hold[orphan_bss]; | |
1457 | else if ((s->flags & SEC_READONLY) == 0) | |
1458 | place = &hold[orphan_data]; | |
1459 | else if ((s->flags & SEC_CODE) == 0) | |
1460 | place = &hold[orphan_rodata]; | |
1461 | else | |
1462 | place = &hold[orphan_text]; | |
1463 | ||
1464 | after = NULL; | |
1465 | if (place != NULL) | |
1466 | { | |
1467 | if (place->os == NULL) | |
1468 | place->os = lang_output_section_find (place->name); | |
1469 | after = place->os; | |
1470 | if (after == NULL) | |
1471 | after = lang_output_section_find_by_flags (s, &place->os, NULL); | |
1472 | if (after == NULL) | |
1473 | /* *ABS* is always the first output section statement. */ | |
1474 | after = (&lang_output_section_statement.head | |
1475 | ->output_section_statement); | |
1476 | } | |
1477 | ||
1478 | /* Choose a unique name for the section. This will be needed if the | |
1479 | same section name appears in the input file with different | |
1480 | loadable or allocatable characteristics. */ | |
1481 | if (bfd_get_section_by_name (output_bfd, secname) != NULL) | |
1482 | { | |
1483 | static int count = 1; | |
1484 | secname = bfd_get_unique_section_name (output_bfd, secname, &count); | |
1485 | if (secname == NULL) | |
1486 | einfo ("%F%P: place_orphan failed: %E\n"); | |
1487 | } | |
1488 | ||
1489 | /* All sections in an executable must be aligned to a page boundary. */ | |
1490 | address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__")); | |
1491 | os = lang_insert_orphan (s, secname, after, place, address, &add_child); | |
1492 | } | |
1493 | ||
1494 | { | |
1495 | lang_statement_union_type **pl = &os->children.head; | |
1496 | ||
1497 | if (dollar != NULL) | |
1498 | { | |
1499 | bfd_boolean found_dollar; | |
1500 | ||
1501 | /* The section name has a '$'. Sort it with the other '$' | |
1502 | sections. */ | |
1503 | found_dollar = FALSE; | |
1504 | for ( ; *pl != NULL; pl = &(*pl)->header.next) | |
1505 | { | |
1506 | lang_input_section_type *ls; | |
1507 | const char *lname; | |
1508 | ||
1509 | if ((*pl)->header.type != lang_input_section_enum) | |
1510 | continue; | |
1511 | ||
1512 | ls = &(*pl)->input_section; | |
1513 | ||
1514 | lname = bfd_get_section_name (ls->section->owner, ls->section); | |
1515 | if (strchr (lname, '$') == NULL) | |
1516 | { | |
1517 | if (found_dollar) | |
1518 | break; | |
1519 | } | |
1520 | else | |
1521 | { | |
1522 | found_dollar = TRUE; | |
1523 | if (strcmp (orig_secname, lname) < 0) | |
1524 | break; | |
1525 | } | |
1526 | } | |
1527 | } | |
1528 | ||
1529 | if (add_child.head != NULL) | |
1530 | { | |
1531 | add_child.head->header.next = *pl; | |
1532 | *pl = add_child.head; | |
1533 | } | |
1534 | } | |
1535 | ||
1536 | return TRUE; | |
1537 | } | |
1538 | ||
1539 | static bfd_boolean | |
1540 | gld_${EMULATION_NAME}_open_dynamic_archive | |
1541 | (const char *arch ATTRIBUTE_UNUSED, | |
1542 | search_dirs_type *search, | |
1543 | lang_input_statement_type *entry) | |
1544 | { | |
1545 | static const struct | |
1546 | { | |
1547 | const char * format; | |
1548 | bfd_boolean use_prefix; | |
1549 | } | |
1550 | libname_fmt [] = | |
1551 | { | |
1552 | /* Preferred explicit import library for dll's. */ | |
1553 | { "lib%s.dll.a", FALSE }, | |
1554 | /* Alternate explicit import library for dll's. */ | |
1555 | { "%s.dll.a", FALSE }, | |
1556 | /* "libfoo.a" could be either an import lib or a static lib. | |
1557 | For backwards compatibility, libfoo.a needs to precede | |
1558 | libfoo.dll and foo.dll in the search. */ | |
1559 | { "lib%s.a", FALSE }, | |
1560 | /* The 'native' spelling of an import lib name is "foo.lib". */ | |
1561 | { "%s.lib", FALSE }, | |
1562 | #ifdef DLL_SUPPORT | |
1563 | /* Try "<prefix>foo.dll" (preferred dll name, if specified). */ | |
1564 | { "%s%s.dll", TRUE }, | |
1565 | #endif | |
1566 | /* Try "libfoo.dll" (default preferred dll name). */ | |
1567 | { "lib%s.dll", FALSE }, | |
1568 | /* Finally try 'native' dll name "foo.dll". */ | |
1569 | { "%s.dll", FALSE }, | |
1570 | /* Note: If adding more formats to this table, make sure to check to | |
1571 | see if their length is longer than libname_fmt[0].format, and if | |
1572 | so, update the call to xmalloc() below. */ | |
1573 | { NULL, FALSE } | |
1574 | }; | |
1575 | static unsigned int format_max_len = 0; | |
1576 | const char * filename; | |
1577 | char * full_string; | |
1578 | char * base_string; | |
1579 | unsigned int i; | |
1580 | ||
1581 | ||
1582 | if (! entry->is_archive) | |
1583 | return FALSE; | |
1584 | ||
1585 | filename = entry->filename; | |
1586 | ||
1587 | if (format_max_len == 0) | |
1588 | /* We need to allow space in the memory that we are going to allocate | |
1589 | for the characters in the format string. Since the format array is | |
1590 | static we only need to calculate this information once. In theory | |
1591 | this value could also be computed statically, but this introduces | |
1592 | the possibility for a discrepancy and hence a possible memory | |
1593 | corruption. The lengths we compute here will be too long because | |
1594 | they will include any formating characters (%s) in the strings, but | |
1595 | this will not matter. */ | |
1596 | for (i = 0; libname_fmt[i].format; i++) | |
1597 | if (format_max_len < strlen (libname_fmt[i].format)) | |
1598 | format_max_len = strlen (libname_fmt[i].format); | |
1599 | ||
1600 | full_string = xmalloc (strlen (search->name) | |
1601 | + strlen (filename) | |
1602 | + format_max_len | |
1603 | #ifdef DLL_SUPPORT | |
1604 | + (pep_dll_search_prefix | |
1605 | ? strlen (pep_dll_search_prefix) : 0) | |
1606 | #endif | |
1607 | /* Allow for the terminating NUL and for the path | |
1608 | separator character that is inserted between | |
1609 | search->name and the start of the format string. */ | |
1610 | + 2); | |
1611 | ||
1612 | sprintf (full_string, "%s/", search->name); | |
1613 | base_string = full_string + strlen (full_string); | |
1614 | ||
1615 | for (i = 0; libname_fmt[i].format; i++) | |
1616 | { | |
1617 | #ifdef DLL_SUPPORT | |
1618 | if (libname_fmt[i].use_prefix) | |
1619 | { | |
1620 | if (!pep_dll_search_prefix) | |
1621 | continue; | |
1622 | sprintf (base_string, libname_fmt[i].format, pep_dll_search_prefix, filename); | |
1623 | } | |
1624 | else | |
1625 | #endif | |
1626 | sprintf (base_string, libname_fmt[i].format, filename); | |
1627 | ||
1628 | if (ldfile_try_open_bfd (full_string, entry)) | |
1629 | break; | |
1630 | } | |
1631 | ||
1632 | if (!libname_fmt[i].format) | |
1633 | { | |
1634 | free (full_string); | |
1635 | return FALSE; | |
1636 | } | |
1637 | ||
1638 | entry->filename = full_string; | |
1639 | ||
1640 | return TRUE; | |
1641 | } | |
1642 | ||
1643 | static int | |
1644 | gld_${EMULATION_NAME}_find_potential_libraries | |
1645 | (char *name, lang_input_statement_type *entry) | |
1646 | { | |
1647 | return ldfile_open_file_search (name, entry, "", ".lib"); | |
1648 | } | |
1649 | \f | |
1650 | static char * | |
1651 | gld_${EMULATION_NAME}_get_script (int *isfile) | |
1652 | EOF | |
1653 | # Scripts compiled in. | |
1654 | # sed commands to quote an ld script as a C string. | |
1655 | sc="-f stringify.sed" | |
1656 | ||
1657 | cat >>e${EMULATION_NAME}.c <<EOF | |
1658 | { | |
1659 | *isfile = 0; | |
1660 | ||
1661 | if (link_info.relocatable && config.build_constructors) | |
1662 | return | |
1663 | EOF | |
1664 | sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c | |
1665 | echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c | |
1666 | sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c | |
1667 | echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c | |
1668 | sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c | |
1669 | echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c | |
1670 | sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c | |
1671 | echo ' ; else return' >> e${EMULATION_NAME}.c | |
1672 | sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c | |
1673 | echo '; }' >> e${EMULATION_NAME}.c | |
1674 | ||
1675 | cat >>e${EMULATION_NAME}.c <<EOF | |
1676 | ||
1677 | ||
1678 | struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = | |
1679 | { | |
1680 | gld_${EMULATION_NAME}_before_parse, | |
1681 | syslib_default, | |
1682 | hll_default, | |
1683 | gld_${EMULATION_NAME}_after_parse, | |
1684 | gld_${EMULATION_NAME}_after_open, | |
1685 | after_allocation_default, | |
1686 | set_output_arch_default, | |
1687 | ldemul_default_target, | |
1688 | gld_${EMULATION_NAME}_before_allocation, | |
1689 | gld_${EMULATION_NAME}_get_script, | |
1690 | "${EMULATION_NAME}", | |
1691 | "${OUTPUT_FORMAT}", | |
1692 | gld_${EMULATION_NAME}_finish, | |
1693 | NULL, /* Create output section statements. */ | |
1694 | gld_${EMULATION_NAME}_open_dynamic_archive, | |
1695 | gld_${EMULATION_NAME}_place_orphan, | |
1696 | gld_${EMULATION_NAME}_set_symbols, | |
1697 | NULL, /* parse_args */ | |
1698 | gld${EMULATION_NAME}_add_options, | |
1699 | gld${EMULATION_NAME}_handle_option, | |
1700 | gld_${EMULATION_NAME}_unrecognized_file, | |
1701 | gld_${EMULATION_NAME}_list_options, | |
1702 | gld_${EMULATION_NAME}_recognized_file, | |
1703 | gld_${EMULATION_NAME}_find_potential_libraries, | |
1704 | NULL /* new_vers_pattern. */ | |
1705 | }; | |
1706 | EOF |