* emultempl/pe.em (pe_find_data_imports): Add trailing newline
[deliverable/binutils-gdb.git] / ld / emultempl / pe.em
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${EMULATION_NAME}.c # there, now line numbers match ;-)
11 fragment <<EOF
12 /* Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
13 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
14
15 This file is part of the GNU Binutils.
16
17 This program is free software; you can redistribute it and/or modify
18 it under the terms of the GNU General Public License as published by
19 the Free Software Foundation; either version 3 of the License, or
20 (at your option) any later version.
21
22 This program is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 GNU General Public License for more details.
26
27 You should have received a copy of the GNU General Public License
28 along with this program; if not, write to the Free Software
29 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
30 MA 02110-1301, USA. */
31
32
33 /* For WINDOWS_NT */
34 /* The original file generated returned different default scripts depending
35 on whether certain switches were set, but these switches pertain to the
36 Linux system and that particular version of coff. In the NT case, we
37 only determine if the subsystem is console or windows in order to select
38 the correct entry point by default. */
39
40 #define TARGET_IS_${EMULATION_NAME}
41
42 /* Do this before including bfd.h, so we prototype the right functions. */
43
44 #if defined(TARGET_IS_armpe) \
45 || defined(TARGET_IS_arm_epoc_pe) \
46 || defined(TARGET_IS_arm_wince_pe)
47 #define bfd_arm_allocate_interworking_sections \
48 bfd_${EMULATION_NAME}_allocate_interworking_sections
49 #define bfd_arm_get_bfd_for_interworking \
50 bfd_${EMULATION_NAME}_get_bfd_for_interworking
51 #define bfd_arm_process_before_allocation \
52 bfd_${EMULATION_NAME}_process_before_allocation
53 #endif
54
55 #include "sysdep.h"
56 #include "bfd.h"
57 #include "bfdlink.h"
58 #include "getopt.h"
59 #include "libiberty.h"
60 #include "ld.h"
61 #include "ldmain.h"
62 #include "ldexp.h"
63 #include "ldlang.h"
64 #include "ldfile.h"
65 #include "ldemul.h"
66 #include <ldgram.h>
67 #include "ldlex.h"
68 #include "ldmisc.h"
69 #include "ldctor.h"
70 #include "coff/internal.h"
71
72 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
73 header in generic PE code. */
74 #include "coff/i386.h"
75 #include "coff/pe.h"
76
77 /* FIXME: This is a BFD internal header file, and we should not be
78 using it here. */
79 #include "../bfd/libcoff.h"
80
81 #include "deffile.h"
82 #include "pe-dll.h"
83 #include "safe-ctype.h"
84
85 /* Permit the emulation parameters to override the default section
86 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
87 it seem that include/coff/internal.h should not define
88 PE_DEF_SECTION_ALIGNMENT. */
89 #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
90 #undef PE_DEF_SECTION_ALIGNMENT
91 #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
92 #endif
93
94 #if defined(TARGET_IS_i386pe) \
95 || defined(TARGET_IS_shpe) \
96 || defined(TARGET_IS_mipspe) \
97 || defined(TARGET_IS_armpe) \
98 || defined(TARGET_IS_arm_epoc_pe) \
99 || defined(TARGET_IS_arm_wince_pe)
100 #define DLL_SUPPORT
101 #endif
102
103 #if defined(TARGET_IS_i386pe) || ! defined(DLL_SUPPORT)
104 #define PE_DEF_SUBSYSTEM 3
105 #else
106 #undef NT_EXE_IMAGE_BASE
107 #undef PE_DEF_SECTION_ALIGNMENT
108 #undef PE_DEF_FILE_ALIGNMENT
109 #define NT_EXE_IMAGE_BASE 0x00010000
110
111 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
112 #define PE_DEF_SECTION_ALIGNMENT 0x00001000
113 #define PE_DEF_SUBSYSTEM 9
114 #else
115 #define PE_DEF_SECTION_ALIGNMENT 0x00000400
116 #define PE_DEF_SUBSYSTEM 2
117 #endif
118 #define PE_DEF_FILE_ALIGNMENT 0x00000200
119 #endif
120
121 #define U(S) ${INITIAL_SYMBOL_CHAR} S
122
123 static struct internal_extra_pe_aouthdr pe;
124 static int dll;
125 static flagword real_flags = 0;
126 static int support_old_code = 0;
127 static char * thumb_entry_symbol = NULL;
128 static lang_assignment_statement_type *image_base_statement = 0;
129
130 #ifdef DLL_SUPPORT
131 static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */
132 static char *pe_out_def_filename = NULL;
133 static char *pe_implib_filename = NULL;
134 static int pe_enable_auto_image_base = 0;
135 static char *pe_dll_search_prefix = NULL;
136 #endif
137
138 extern const char *output_filename;
139
140 static void
141 gld_${EMULATION_NAME}_before_parse (void)
142 {
143 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
144 output_filename = "${EXECUTABLE_NAME:-a.exe}";
145 #ifdef DLL_SUPPORT
146 config.dynamic_link = TRUE;
147 config.has_shared = 1;
148 link_info.pei386_auto_import = -1;
149 link_info.pei386_runtime_pseudo_reloc = -1;
150
151 #if (PE_DEF_SUBSYSTEM == 9) || (PE_DEF_SUBSYSTEM == 2)
152 #if defined TARGET_IS_mipspe || defined TARGET_IS_armpe || defined TARGET_IS_arm_wince_pe
153 lang_default_entry ("WinMainCRTStartup");
154 #else
155 lang_default_entry ("_WinMainCRTStartup");
156 #endif
157 #else
158 lang_default_entry ("${ENTRY}");
159 #endif
160 #endif
161 }
162 \f
163 /* PE format extra command line options. */
164
165 /* Used for setting flags in the PE header. */
166 #define OPTION_BASE_FILE (300 + 1)
167 #define OPTION_DLL (OPTION_BASE_FILE + 1)
168 #define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1)
169 #define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1)
170 #define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1)
171 #define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1)
172 #define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1)
173 #define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
174 #define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1)
175 #define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1)
176 #define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
177 #define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1)
178 #define OPTION_SUBSYSTEM (OPTION_STACK + 1)
179 #define OPTION_HEAP (OPTION_SUBSYSTEM + 1)
180 #define OPTION_SUPPORT_OLD_CODE (OPTION_HEAP + 1)
181 #define OPTION_OUT_DEF (OPTION_SUPPORT_OLD_CODE + 1)
182 #define OPTION_EXPORT_ALL (OPTION_OUT_DEF + 1)
183 #define OPTION_EXCLUDE_SYMBOLS (OPTION_EXPORT_ALL + 1)
184 #define OPTION_KILL_ATS (OPTION_EXCLUDE_SYMBOLS + 1)
185 #define OPTION_STDCALL_ALIASES (OPTION_KILL_ATS + 1)
186 #define OPTION_ENABLE_STDCALL_FIXUP (OPTION_STDCALL_ALIASES + 1)
187 #define OPTION_DISABLE_STDCALL_FIXUP (OPTION_ENABLE_STDCALL_FIXUP + 1)
188 #define OPTION_IMPLIB_FILENAME (OPTION_DISABLE_STDCALL_FIXUP + 1)
189 #define OPTION_THUMB_ENTRY (OPTION_IMPLIB_FILENAME + 1)
190 #define OPTION_WARN_DUPLICATE_EXPORTS (OPTION_THUMB_ENTRY + 1)
191 #define OPTION_IMP_COMPAT (OPTION_WARN_DUPLICATE_EXPORTS + 1)
192 #define OPTION_ENABLE_AUTO_IMAGE_BASE (OPTION_IMP_COMPAT + 1)
193 #define OPTION_DISABLE_AUTO_IMAGE_BASE (OPTION_ENABLE_AUTO_IMAGE_BASE + 1)
194 #define OPTION_DLL_SEARCH_PREFIX (OPTION_DISABLE_AUTO_IMAGE_BASE + 1)
195 #define OPTION_NO_DEFAULT_EXCLUDES (OPTION_DLL_SEARCH_PREFIX + 1)
196 #define OPTION_DLL_ENABLE_AUTO_IMPORT (OPTION_NO_DEFAULT_EXCLUDES + 1)
197 #define OPTION_DLL_DISABLE_AUTO_IMPORT (OPTION_DLL_ENABLE_AUTO_IMPORT + 1)
198 #define OPTION_ENABLE_EXTRA_PE_DEBUG (OPTION_DLL_DISABLE_AUTO_IMPORT + 1)
199 #define OPTION_EXCLUDE_LIBS (OPTION_ENABLE_EXTRA_PE_DEBUG + 1)
200 #define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC \
201 (OPTION_EXCLUDE_LIBS + 1)
202 #define OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC \
203 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC + 1)
204 #define OPTION_LARGE_ADDRESS_AWARE \
205 (OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC + 1)
206
207 static void
208 gld${EMULATION_NAME}_add_options
209 (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
210 struct option **longopts, int nrl ATTRIBUTE_UNUSED,
211 struct option **really_longopts ATTRIBUTE_UNUSED)
212 {
213 static const struct option xtra_long[] = {
214 /* PE options */
215 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
216 {"dll", no_argument, NULL, OPTION_DLL},
217 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
218 {"heap", required_argument, NULL, OPTION_HEAP},
219 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
220 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
221 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
222 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
223 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
224 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
225 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
226 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
227 {"stack", required_argument, NULL, OPTION_STACK},
228 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
229 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
230 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
231 #ifdef DLL_SUPPORT
232 /* getopt allows abbreviations, so we do this to stop it from treating -o
233 as an abbreviation for this option */
234 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
235 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
236 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
237 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
238 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
239 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
240 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
241 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
242 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
243 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
244 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
245 /* getopt() allows abbreviations, so we do this to stop it from
246 treating -c as an abbreviation for these --compat-implib. */
247 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
248 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
249 {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
250 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
251 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
252 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
253 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
254 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
255 {"enable-extra-pe-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
256 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
257 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
258 #endif
259 {"large-address-aware", no_argument, NULL, OPTION_LARGE_ADDRESS_AWARE},
260 {NULL, no_argument, NULL, 0}
261 };
262
263 *longopts = (struct option *)
264 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
265 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
266 }
267
268 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
269 parameters which may be input from the command line. */
270
271 typedef struct
272 {
273 void *ptr;
274 int size;
275 int value;
276 char *symbol;
277 int inited;
278 } definfo;
279
280 #define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0}
281
282 static definfo init[] =
283 {
284 /* imagebase must be first */
285 #define IMAGEBASEOFF 0
286 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE),
287 #define DLLOFF 1
288 {&dll, sizeof(dll), 0, "__dll__", 0},
289 #define MSIMAGEBASEOFF 2
290 D(ImageBase, U ("__ImageBase"), NT_EXE_IMAGE_BASE),
291 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
292 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
293 D(MajorOperatingSystemVersion,"__major_os_version__", 4),
294 D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
295 D(MajorImageVersion,"__major_image_version__", 1),
296 D(MinorImageVersion,"__minor_image_version__", 0),
297 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
298 D(MajorSubsystemVersion,"__major_subsystem_version__", 3),
299 #else
300 D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
301 #endif
302 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
303 D(Subsystem,"__subsystem__", ${SUBSYSTEM}),
304 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000),
305 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
306 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
307 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
308 D(LoaderFlags,"__loader_flags__", 0x0),
309 { NULL, 0, 0, NULL, 0 }
310 };
311
312
313 static void
314 gld_${EMULATION_NAME}_list_options (FILE *file)
315 {
316 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
317 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
318 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
319 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
320 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
321 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
322 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
323 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
324 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
325 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
326 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
327 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
328 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
329 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
330 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
331 fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n"));
332 #ifdef DLL_SUPPORT
333 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
334 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
335 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
336 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
337 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
338 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
339 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
340 fprintf (file, _(" --out-implib <file> Generate import library\n"));
341 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
342 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n"));
343 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
344 create __imp_<SYMBOL> as well.\n"));
345 fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\
346 unless user specifies one\n"));
347 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));
348 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\
349 an importlib, use <string><basename>.dll\n\
350 in preference to lib<basename>.dll \n"));
351 fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to\n\
352 __imp_sym for DATA references\n"));
353 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
354 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\
355 adding pseudo-relocations resolved at\n\
356 runtime.\n"));
357 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\
358 auto-imported DATA.\n"));
359 fprintf (file, _(" --enable-extra-pe-debug Enable verbose debug output when building\n\
360 or linking to DLLs (esp. auto-import)\n"));
361 #endif
362 fprintf (file, _(" --large-address-aware Executable supports virtual addresses\n\
363 greater than 2 gigabytes\n"));
364 }
365
366
367 static void
368 set_pe_name (char *name, long val)
369 {
370 int i;
371
372 /* Find the name and set it. */
373 for (i = 0; init[i].ptr; i++)
374 {
375 if (strcmp (name, init[i].symbol) == 0)
376 {
377 init[i].value = val;
378 init[i].inited = 1;
379 if (strcmp (name,"__image_base__") == 0)
380 set_pe_name (U ("__ImageBase"), val);
381 return;
382 }
383 }
384 abort ();
385 }
386
387
388 static void
389 set_pe_subsystem (void)
390 {
391 const char *sver;
392 const char *entry;
393 const char *initial_symbol_char;
394 char *end;
395 int len;
396 int i;
397 int subsystem;
398 unsigned long temp_subsystem;
399 static const struct
400 {
401 const char *name;
402 const int value;
403 const char *entry;
404 }
405 v[] =
406 {
407 { "native", 1, "NtProcessStartup" },
408 { "windows", 2, "WinMainCRTStartup" },
409 { "console", 3, "mainCRTStartup" },
410 { "posix", 7, "__PosixProcessStartup"},
411 { "wince", 9, "WinMainCRTStartup" },
412 { "xbox", 14, "mainCRTStartup" },
413 { NULL, 0, NULL }
414 };
415 /* Entry point name for arbitrary subsystem numbers. */
416 static const char default_entry[] = "mainCRTStartup";
417
418 /* Check for the presence of a version number. */
419 sver = strchr (optarg, ':');
420 if (sver == NULL)
421 len = strlen (optarg);
422 else
423 {
424 len = sver - optarg;
425 set_pe_name ("__major_subsystem_version__",
426 strtoul (sver + 1, &end, 0));
427 if (*end == '.')
428 set_pe_name ("__minor_subsystem_version__",
429 strtoul (end + 1, &end, 0));
430 if (*end != '\0')
431 einfo (_("%P: warning: bad version number in -subsystem option\n"));
432 }
433
434 /* Check for numeric subsystem. */
435 temp_subsystem = strtoul (optarg, & end, 0);
436 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
437 {
438 /* Search list for a numeric match to use its entry point. */
439 for (i = 0; v[i].name; i++)
440 if (v[i].value == (int) temp_subsystem)
441 break;
442
443 /* If no match, use the default. */
444 if (v[i].name != NULL)
445 entry = v[i].entry;
446 else
447 entry = default_entry;
448
449 /* Use this subsystem. */
450 subsystem = (int) temp_subsystem;
451 }
452 else
453 {
454 /* Search for subsystem by name. */
455 for (i = 0; v[i].name; i++)
456 if (strncmp (optarg, v[i].name, len) == 0
457 && v[i].name[len] == '\0')
458 break;
459
460 if (v[i].name == NULL)
461 {
462 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
463 return;
464 }
465
466 entry = v[i].entry;
467 subsystem = v[i].value;
468 }
469
470 set_pe_name ("__subsystem__", subsystem);
471
472 initial_symbol_char = ${INITIAL_SYMBOL_CHAR};
473 if (*initial_symbol_char != '\0')
474 {
475 char *alc_entry;
476
477 /* lang_default_entry expects its argument to be permanently
478 allocated, so we don't free this string. */
479 alc_entry = xmalloc (strlen (initial_symbol_char)
480 + strlen (entry)
481 + 1);
482 strcpy (alc_entry, initial_symbol_char);
483 strcat (alc_entry, entry);
484 entry = alc_entry;
485 }
486
487 lang_default_entry (entry);
488
489 return;
490 }
491
492
493 static void
494 set_pe_value (char *name)
495 {
496 char *end;
497
498 set_pe_name (name, strtoul (optarg, &end, 0));
499
500 if (end == optarg)
501 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
502
503 optarg = end;
504 }
505
506
507 static void
508 set_pe_stack_heap (char *resname, char *comname)
509 {
510 set_pe_value (resname);
511
512 if (*optarg == ',')
513 {
514 optarg++;
515 set_pe_value (comname);
516 }
517 else if (*optarg)
518 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
519 }
520
521
522 static bfd_boolean
523 gld${EMULATION_NAME}_handle_option (int optc)
524 {
525 switch (optc)
526 {
527 default:
528 return FALSE;
529
530 case OPTION_BASE_FILE:
531 link_info.base_file = fopen (optarg, FOPEN_WB);
532 if (link_info.base_file == NULL)
533 {
534 /* xgettext:c-format */
535 fprintf (stderr, _("%s: Can't open base file %s\n"),
536 program_name, optarg);
537 xexit (1);
538 }
539 break;
540
541 /* PE options. */
542 case OPTION_HEAP:
543 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
544 break;
545 case OPTION_STACK:
546 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
547 break;
548 case OPTION_SUBSYSTEM:
549 set_pe_subsystem ();
550 break;
551 case OPTION_MAJOR_OS_VERSION:
552 set_pe_value ("__major_os_version__");
553 break;
554 case OPTION_MINOR_OS_VERSION:
555 set_pe_value ("__minor_os_version__");
556 break;
557 case OPTION_MAJOR_SUBSYSTEM_VERSION:
558 set_pe_value ("__major_subsystem_version__");
559 break;
560 case OPTION_MINOR_SUBSYSTEM_VERSION:
561 set_pe_value ("__minor_subsystem_version__");
562 break;
563 case OPTION_MAJOR_IMAGE_VERSION:
564 set_pe_value ("__major_image_version__");
565 break;
566 case OPTION_MINOR_IMAGE_VERSION:
567 set_pe_value ("__minor_image_version__");
568 break;
569 case OPTION_FILE_ALIGNMENT:
570 set_pe_value ("__file_alignment__");
571 break;
572 case OPTION_SECTION_ALIGNMENT:
573 set_pe_value ("__section_alignment__");
574 break;
575 case OPTION_DLL:
576 set_pe_name ("__dll__", 1);
577 break;
578 case OPTION_IMAGE_BASE:
579 set_pe_value ("__image_base__");
580 break;
581 case OPTION_SUPPORT_OLD_CODE:
582 support_old_code = 1;
583 break;
584 case OPTION_THUMB_ENTRY:
585 thumb_entry_symbol = optarg;
586 break;
587 #ifdef DLL_SUPPORT
588 case OPTION_OUT_DEF:
589 pe_out_def_filename = xstrdup (optarg);
590 break;
591 case OPTION_EXPORT_ALL:
592 pe_dll_export_everything = 1;
593 break;
594 case OPTION_EXCLUDE_SYMBOLS:
595 pe_dll_add_excludes (optarg, 0);
596 break;
597 case OPTION_EXCLUDE_LIBS:
598 pe_dll_add_excludes (optarg, 1);
599 break;
600 case OPTION_KILL_ATS:
601 pe_dll_kill_ats = 1;
602 break;
603 case OPTION_STDCALL_ALIASES:
604 pe_dll_stdcall_aliases = 1;
605 break;
606 case OPTION_ENABLE_STDCALL_FIXUP:
607 pe_enable_stdcall_fixup = 1;
608 break;
609 case OPTION_DISABLE_STDCALL_FIXUP:
610 pe_enable_stdcall_fixup = 0;
611 break;
612 case OPTION_IMPLIB_FILENAME:
613 pe_implib_filename = xstrdup (optarg);
614 break;
615 case OPTION_WARN_DUPLICATE_EXPORTS:
616 pe_dll_warn_dup_exports = 1;
617 break;
618 case OPTION_IMP_COMPAT:
619 pe_dll_compat_implib = 1;
620 break;
621 case OPTION_ENABLE_AUTO_IMAGE_BASE:
622 pe_enable_auto_image_base = 1;
623 break;
624 case OPTION_DISABLE_AUTO_IMAGE_BASE:
625 pe_enable_auto_image_base = 0;
626 break;
627 case OPTION_DLL_SEARCH_PREFIX:
628 pe_dll_search_prefix = xstrdup (optarg);
629 break;
630 case OPTION_NO_DEFAULT_EXCLUDES:
631 pe_dll_do_default_excludes = 0;
632 break;
633 case OPTION_DLL_ENABLE_AUTO_IMPORT:
634 link_info.pei386_auto_import = 1;
635 break;
636 case OPTION_DLL_DISABLE_AUTO_IMPORT:
637 link_info.pei386_auto_import = 0;
638 break;
639 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
640 link_info.pei386_runtime_pseudo_reloc = 1;
641 break;
642 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
643 link_info.pei386_runtime_pseudo_reloc = 0;
644 break;
645 case OPTION_ENABLE_EXTRA_PE_DEBUG:
646 pe_dll_extra_pe_debug = 1;
647 break;
648 #endif
649 case OPTION_LARGE_ADDRESS_AWARE:
650 real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
651 break;
652 }
653 return TRUE;
654 }
655 \f
656
657 #ifdef DLL_SUPPORT
658 static unsigned long
659 strhash (const char *str)
660 {
661 const unsigned char *s;
662 unsigned long hash;
663 unsigned int c;
664 unsigned int len;
665
666 hash = 0;
667 len = 0;
668 s = (const unsigned char *) str;
669 while ((c = *s++) != '\0')
670 {
671 hash += c + (c << 17);
672 hash ^= hash >> 2;
673 ++len;
674 }
675 hash += len + (len << 17);
676 hash ^= hash >> 2;
677
678 return hash;
679 }
680
681 /* Use the output file to create a image base for relocatable DLLs. */
682
683 static unsigned long
684 compute_dll_image_base (const char *ofile)
685 {
686 unsigned long hash = strhash (ofile);
687 return 0x61300000 + ((hash << 16) & 0x0FFC0000);
688 }
689 #endif
690
691 /* Assign values to the special symbols before the linker script is
692 read. */
693
694 static void
695 gld_${EMULATION_NAME}_set_symbols (void)
696 {
697 /* Run through and invent symbols for all the
698 names and insert the defaults. */
699 int j;
700 lang_statement_list_type *save;
701
702 if (!init[IMAGEBASEOFF].inited)
703 {
704 if (link_info.relocatable)
705 init[IMAGEBASEOFF].value = 0;
706 else if (init[DLLOFF].value || (link_info.shared && !link_info.pie))
707 #ifdef DLL_SUPPORT
708 init[IMAGEBASEOFF].value = (pe_enable_auto_image_base) ?
709 compute_dll_image_base (output_filename) : NT_DLL_IMAGE_BASE;
710 #else
711 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
712 #endif
713 else
714 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
715 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
716 }
717
718 /* Don't do any symbol assignments if this is a relocatable link. */
719 if (link_info.relocatable)
720 return;
721
722 /* Glue the assignments into the abs section. */
723 save = stat_ptr;
724
725 stat_ptr = &(abs_output_section->children);
726
727 for (j = 0; init[j].ptr; j++)
728 {
729 long val = init[j].value;
730 lang_assignment_statement_type *rv;
731 rv = lang_add_assignment (exp_assop ('=', init[j].symbol,
732 exp_intop (val)));
733 if (init[j].size == sizeof (short))
734 *(short *) init[j].ptr = val;
735 else if (init[j].size == sizeof (int))
736 *(int *) init[j].ptr = val;
737 else if (init[j].size == sizeof (long))
738 *(long *) init[j].ptr = val;
739 /* This might be a long long or other special type. */
740 else if (init[j].size == sizeof (bfd_vma))
741 *(bfd_vma *) init[j].ptr = val;
742 else abort ();
743 if (j == IMAGEBASEOFF)
744 image_base_statement = rv;
745 }
746 /* Restore the pointer. */
747 stat_ptr = save;
748
749 if (pe.FileAlignment >
750 pe.SectionAlignment)
751 {
752 einfo (_("%P: warning, file alignment > section alignment.\n"));
753 }
754 }
755
756 /* This is called after the linker script and the command line options
757 have been read. */
758
759 static void
760 gld_${EMULATION_NAME}_after_parse (void)
761 {
762 /* The Windows libraries are designed for the linker to treat the
763 entry point as an undefined symbol. Otherwise, the .obj that
764 defines mainCRTStartup is brought in because it is the first
765 encountered in libc.lib and it has other symbols in it which will
766 be pulled in by the link process. To avoid this, we act as
767 though the user specified -u with the entry point symbol.
768
769 This function is called after the linker script and command line
770 options have been read, so at this point we know the right entry
771 point. This function is called before the input files are
772 opened, so registering the symbol as undefined will make a
773 difference. */
774
775 if (! link_info.relocatable && entry_symbol.name != NULL)
776 ldlang_add_undef (entry_symbol.name);
777 }
778
779 /* pe-dll.c directly accesses pe_data_import_dll,
780 so it must be defined outside of #ifdef DLL_SUPPORT.
781 Note - this variable is deliberately not initialised.
782 This allows it to be treated as a common varaible, and only
783 exist in one incarnation in a multiple target enabled linker. */
784 char * pe_data_import_dll;
785
786 #ifdef DLL_SUPPORT
787 static struct bfd_link_hash_entry *pe_undef_found_sym;
788
789 static bfd_boolean
790 pe_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
791 {
792 int sl;
793 char *string = inf;
794
795 sl = strlen (string);
796 if (h->type == bfd_link_hash_defined
797 && strncmp (h->root.string, string, sl) == 0
798 && h->root.string[sl] == '@')
799 {
800 pe_undef_found_sym = h;
801 return FALSE;
802 }
803 return TRUE;
804 }
805
806 static void
807 pe_fixup_stdcalls (void)
808 {
809 static int gave_warning_message = 0;
810 struct bfd_link_hash_entry *undef, *sym;
811
812 if (pe_dll_extra_pe_debug)
813 printf ("%s\n", __FUNCTION__);
814
815 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
816 if (undef->type == bfd_link_hash_undefined)
817 {
818 char* at = strchr (undef->root.string, '@');
819 int lead_at = (*undef->root.string == '@');
820 /* For now, don't try to fixup fastcall symbols. */
821
822 if (at && !lead_at)
823 {
824 /* The symbol is a stdcall symbol, so let's look for a
825 cdecl symbol with the same name and resolve to that. */
826 char *cname = xstrdup (undef->root.string /* + lead_at */);
827 at = strchr (cname, '@');
828 *at = 0;
829 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
830
831 if (sym && sym->type == bfd_link_hash_defined)
832 {
833 undef->type = bfd_link_hash_defined;
834 undef->u.def.value = sym->u.def.value;
835 undef->u.def.section = sym->u.def.section;
836
837 if (pe_enable_stdcall_fixup == -1)
838 {
839 einfo (_("Warning: resolving %s by linking to %s\n"),
840 undef->root.string, cname);
841 if (! gave_warning_message)
842 {
843 gave_warning_message = 1;
844 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
845 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
846 }
847 }
848 }
849 }
850 else
851 {
852 /* The symbol is a cdecl symbol, so we look for stdcall
853 symbols - which means scanning the whole symbol table. */
854 pe_undef_found_sym = 0;
855 bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
856 (char *) undef->root.string);
857 sym = pe_undef_found_sym;
858 if (sym)
859 {
860 undef->type = bfd_link_hash_defined;
861 undef->u.def.value = sym->u.def.value;
862 undef->u.def.section = sym->u.def.section;
863
864 if (pe_enable_stdcall_fixup == -1)
865 {
866 einfo (_("Warning: resolving %s by linking to %s\n"),
867 undef->root.string, sym->root.string);
868 if (! gave_warning_message)
869 {
870 gave_warning_message = 1;
871 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
872 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
873 }
874 }
875 }
876 }
877 }
878 }
879
880 static int
881 make_import_fixup (arelent *rel, asection *s)
882 {
883 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
884 char addend[4];
885
886 if (pe_dll_extra_pe_debug)
887 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
888 (unsigned long) rel->address, (long) rel->addend);
889
890 if (! bfd_get_section_contents (s->owner, s, addend, rel->address, sizeof (addend)))
891 einfo (_("%C: Cannot get section contents - auto-import exception\n"),
892 s->owner, s, rel->address);
893
894 pe_create_import_fixup (rel, s, bfd_get_32 (s->owner, addend));
895
896 return 1;
897 }
898
899 static void
900 pe_find_data_imports (void)
901 {
902 struct bfd_link_hash_entry *undef, *sym;
903
904 if (link_info.pei386_auto_import == 0)
905 return;
906
907 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
908 {
909 if (undef->type == bfd_link_hash_undefined)
910 {
911 /* C++ symbols are *long*. */
912 char buf[4096];
913
914 if (pe_dll_extra_pe_debug)
915 printf ("%s:%s\n", __FUNCTION__, undef->root.string);
916
917 sprintf (buf, "__imp_%s", undef->root.string);
918
919 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
920
921 if (sym && sym->type == bfd_link_hash_defined)
922 {
923 bfd *b = sym->u.def.section->owner;
924 asymbol **symbols;
925 int nsyms, i;
926
927 if (link_info.pei386_auto_import == -1)
928 {
929 static bfd_boolean warned = FALSE;
930
931 info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"),
932 undef->root.string, buf);
933
934 /* PR linker/4844. */
935 if (! warned)
936 {
937 warned = TRUE;
938 einfo (_("%P: warning: auto-importing has been activated without --enable-auto-import specified on the command line.\n\
939 This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.\n"));
940 }
941 }
942
943 if (!bfd_generic_link_read_symbols (b))
944 {
945 einfo (_("%B%F: could not read symbols: %E\n"), b);
946 return;
947 }
948
949 symbols = bfd_get_outsymbols (b);
950 nsyms = bfd_get_symcount (b);
951
952 for (i = 0; i < nsyms; i++)
953 {
954 if (! CONST_STRNEQ (symbols[i]->name, U ("_head_")))
955 continue;
956
957 if (pe_dll_extra_pe_debug)
958 printf ("->%s\n", symbols[i]->name);
959
960 pe_data_import_dll = (char*) (symbols[i]->name +
961 sizeof (U ("_head_")) - 1);
962 break;
963 }
964
965 pe_walk_relocs_of_symbol (&link_info, undef->root.string,
966 make_import_fixup);
967
968 /* Let's differentiate it somehow from defined. */
969 undef->type = bfd_link_hash_defweak;
970 /* We replace original name with __imp_ prefixed, this
971 1) may trash memory 2) leads to duplicate symbol generation.
972 Still, IMHO it's better than having name poluted. */
973 undef->root.string = sym->root.string;
974 undef->u.def.value = sym->u.def.value;
975 undef->u.def.section = sym->u.def.section;
976 }
977 }
978 }
979 }
980
981 static bfd_boolean
982 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
983 {
984 if (pe_dll_extra_pe_debug)
985 printf ("+%s\n", h->string);
986
987 return TRUE;
988 }
989 #endif /* DLL_SUPPORT */
990
991
992 static void
993 gld_${EMULATION_NAME}_after_open (void)
994 {
995 #ifdef DLL_SUPPORT
996 if (pe_dll_extra_pe_debug)
997 {
998 bfd *a;
999 struct bfd_link_hash_entry *sym;
1000
1001 printf ("%s()\n", __FUNCTION__);
1002
1003 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1004 printf ("-%s\n", sym->root.string);
1005 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1006
1007 for (a = link_info.input_bfds; a; a = a->link_next)
1008 printf ("*%s\n",a->filename);
1009 }
1010 #endif
1011
1012 /* Pass the wacky PE command line options into the output bfd.
1013 FIXME: This should be done via a function, rather than by
1014 including an internal BFD header. */
1015
1016 if (coff_data (link_info.output_bfd) == NULL
1017 || coff_data (link_info.output_bfd)->pe == 0)
1018 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"),
1019 link_info.output_bfd);
1020
1021 pe_data (link_info.output_bfd)->pe_opthdr = pe;
1022 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1023 pe_data (link_info.output_bfd)->real_flags |= real_flags;
1024
1025 #ifdef DLL_SUPPORT
1026 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
1027 pe_fixup_stdcalls ();
1028
1029 pe_process_import_defs (link_info.output_bfd, &link_info);
1030
1031 pe_find_data_imports ();
1032
1033 #if defined (TARGET_IS_i386pe) \
1034 || defined (TARGET_IS_armpe) \
1035 || defined (TARGET_IS_arm_epoc_pe) \
1036 || defined (TARGET_IS_arm_wince_pe)
1037 if (!link_info.relocatable)
1038 pe_dll_build_sections (link_info.output_bfd, &link_info);
1039 else
1040 pe_exe_build_sections (link_info.output_bfd, &link_info);
1041 #else
1042 if (link_info.shared)
1043 pe_dll_build_sections (link_info.output_bfd, &link_info);
1044 #endif
1045 #endif /* DLL_SUPPORT */
1046
1047 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1048 if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
1049 {
1050 /* The arm backend needs special fields in the output hash structure.
1051 These will only be created if the output format is an arm format,
1052 hence we do not support linking and changing output formats at the
1053 same time. Use a link followed by objcopy to change output formats. */
1054 einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
1055 return;
1056 }
1057 {
1058 /* Find a BFD that can hold the interworking stubs. */
1059 LANG_FOR_EACH_INPUT_STATEMENT (is)
1060 {
1061 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
1062 break;
1063 }
1064 }
1065 #endif
1066
1067 {
1068 /* This next chunk of code tries to detect the case where you have
1069 two import libraries for the same DLL (specifically,
1070 symbolically linking libm.a and libc.a in cygwin to
1071 libcygwin.a). In those cases, it's possible for function
1072 thunks from the second implib to be used but without the
1073 head/tail objects, causing an improper import table. We detect
1074 those cases and rename the "other" import libraries to match
1075 the one the head/tail come from, so that the linker will sort
1076 things nicely and produce a valid import table. */
1077
1078 LANG_FOR_EACH_INPUT_STATEMENT (is)
1079 {
1080 if (is->the_bfd->my_archive)
1081 {
1082 int idata2 = 0, reloc_count=0, is_imp = 0;
1083 asection *sec;
1084
1085 /* See if this is an import library thunk. */
1086 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1087 {
1088 if (strcmp (sec->name, ".idata\$2") == 0)
1089 idata2 = 1;
1090 if (CONST_STRNEQ (sec->name, ".idata\$"))
1091 is_imp = 1;
1092 reloc_count += sec->reloc_count;
1093 }
1094
1095 if (is_imp && !idata2 && reloc_count)
1096 {
1097 /* It is, look for the reference to head and see if it's
1098 from our own library. */
1099 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1100 {
1101 int i;
1102 long relsize;
1103 asymbol **symbols;
1104 arelent **relocs;
1105 int nrelocs;
1106
1107 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1108 if (relsize < 1)
1109 break;
1110
1111 if (!bfd_generic_link_read_symbols (is->the_bfd))
1112 {
1113 einfo (_("%B%F: could not read symbols: %E\n"),
1114 is->the_bfd);
1115 return;
1116 }
1117 symbols = bfd_get_outsymbols (is->the_bfd);
1118
1119 relocs = (arelent **) xmalloc ((size_t) relsize);
1120 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1121 relocs, symbols);
1122 if (nrelocs < 0)
1123 {
1124 free (relocs);
1125 einfo ("%X%P: unable to process relocs: %E\n");
1126 return;
1127 }
1128
1129 for (i = 0; i < nrelocs; i++)
1130 {
1131 struct bfd_symbol *s;
1132 struct bfd_link_hash_entry * blhe;
1133 char *other_bfd_filename;
1134 char *n;
1135
1136 s = (relocs[i]->sym_ptr_ptr)[0];
1137
1138 if (s->flags & BSF_LOCAL)
1139 continue;
1140
1141 /* Thunk section with reloc to another bfd. */
1142 blhe = bfd_link_hash_lookup (link_info.hash,
1143 s->name,
1144 FALSE, FALSE, TRUE);
1145
1146 if (blhe == NULL
1147 || blhe->type != bfd_link_hash_defined)
1148 continue;
1149
1150 other_bfd_filename
1151 = blhe->u.def.section->owner->my_archive
1152 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1153 : bfd_get_filename (blhe->u.def.section->owner);
1154
1155 if (strcmp (bfd_get_filename (is->the_bfd->my_archive),
1156 other_bfd_filename) == 0)
1157 continue;
1158
1159 /* Rename this implib to match the other one. */
1160 n = xmalloc (strlen (other_bfd_filename) + 1);
1161 strcpy (n, other_bfd_filename);
1162 is->the_bfd->my_archive->filename = n;
1163 }
1164
1165 free (relocs);
1166 /* Note - we do not free the symbols,
1167 they are now cached in the BFD. */
1168 }
1169 }
1170 }
1171 }
1172 }
1173
1174 {
1175 int is_ms_arch = 0;
1176 bfd *cur_arch = 0;
1177 lang_input_statement_type *is2;
1178 lang_input_statement_type *is3;
1179
1180 /* Careful - this is a shell script. Watch those dollar signs! */
1181 /* Microsoft import libraries have every member named the same,
1182 and not in the right order for us to link them correctly. We
1183 must detect these and rename the members so that they'll link
1184 correctly. There are three types of objects: the head, the
1185 thunks, and the sentinel(s). The head is easy; it's the one
1186 with idata2. We assume that the sentinels won't have relocs,
1187 and the thunks will. It's easier than checking the symbol
1188 table for external references. */
1189 LANG_FOR_EACH_INPUT_STATEMENT (is)
1190 {
1191 if (is->the_bfd->my_archive)
1192 {
1193 char *pnt;
1194 bfd *arch = is->the_bfd->my_archive;
1195
1196 if (cur_arch != arch)
1197 {
1198 cur_arch = arch;
1199 is_ms_arch = 1;
1200
1201 for (is3 = is;
1202 is3 && is3->the_bfd->my_archive == arch;
1203 is3 = (lang_input_statement_type *) is3->next)
1204 {
1205 /* A MS dynamic import library can also contain static
1206 members, so look for the first element with a .dll
1207 extension, and use that for the remainder of the
1208 comparisons. */
1209 pnt = strrchr (is3->the_bfd->filename, '.');
1210 if (pnt != NULL && strcmp (pnt, ".dll") == 0)
1211 break;
1212 }
1213
1214 if (is3 == NULL)
1215 is_ms_arch = 0;
1216 else
1217 {
1218 /* OK, found one. Now look to see if the remaining
1219 (dynamic import) members use the same name. */
1220 for (is2 = is;
1221 is2 && is2->the_bfd->my_archive == arch;
1222 is2 = (lang_input_statement_type *) is2->next)
1223 {
1224 /* Skip static members, ie anything with a .obj
1225 extension. */
1226 pnt = strrchr (is2->the_bfd->filename, '.');
1227 if (pnt != NULL && strcmp (pnt, ".obj") == 0)
1228 continue;
1229
1230 if (strcmp (is3->the_bfd->filename,
1231 is2->the_bfd->filename))
1232 {
1233 is_ms_arch = 0;
1234 break;
1235 }
1236 }
1237 }
1238 }
1239
1240 /* This fragment might have come from an .obj file in a Microsoft
1241 import, and not an actual import record. If this is the case,
1242 then leave the filename alone. */
1243 pnt = strrchr (is->the_bfd->filename, '.');
1244
1245 if (is_ms_arch && (strcmp (pnt, ".dll") == 0))
1246 {
1247 int idata2 = 0, reloc_count=0;
1248 asection *sec;
1249 char *new_name, seq;
1250
1251 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1252 {
1253 if (strcmp (sec->name, ".idata\$2") == 0)
1254 idata2 = 1;
1255 reloc_count += sec->reloc_count;
1256 }
1257
1258 if (idata2) /* .idata2 is the TOC */
1259 seq = 'a';
1260 else if (reloc_count > 0) /* thunks */
1261 seq = 'b';
1262 else /* sentinel */
1263 seq = 'c';
1264
1265 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1266 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1267 is->the_bfd->filename = new_name;
1268
1269 new_name = xmalloc (strlen (is->filename) + 3);
1270 sprintf (new_name, "%s.%c", is->filename, seq);
1271 is->filename = new_name;
1272 }
1273 }
1274 }
1275 }
1276
1277 {
1278 /* The following chunk of code tries to identify jump stubs in
1279 import libraries which are dead code and eliminates them
1280 from the final link. For each exported symbol <sym>, there
1281 is a object file in the import library with a .text section
1282 and several .idata$* sections. The .text section contains the
1283 symbol definition for <sym> which is a jump stub of the form
1284 jmp *__imp_<sym>. The .idata$5 contains the symbol definition
1285 for __imp_<sym> which is the address of the slot for <sym> in
1286 the import address table. When a symbol is imported explicitly
1287 using __declspec(dllimport) declaration, the compiler generates
1288 a reference to __imp_<sym> which directly resolves to the
1289 symbol in .idata$5, in which case the jump stub code is not
1290 needed. The following code tries to identify jump stub sections
1291 in import libraries which are not referred to by anyone and
1292 marks them for exclusion from the final link. */
1293 LANG_FOR_EACH_INPUT_STATEMENT (is)
1294 {
1295 if (is->the_bfd->my_archive)
1296 {
1297 int is_imp = 0;
1298 asection *sec, *stub_sec = NULL;
1299
1300 /* See if this is an import library thunk. */
1301 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1302 {
1303 if (strncmp (sec->name, ".idata\$", 7) == 0)
1304 is_imp = 1;
1305 /* The section containing the jmp stub has code
1306 and has a reloc. */
1307 if ((sec->flags & SEC_CODE) && sec->reloc_count)
1308 stub_sec = sec;
1309 }
1310
1311 if (is_imp && stub_sec)
1312 {
1313 asymbol **symbols;
1314 long nsyms, src_count;
1315 struct bfd_link_hash_entry * blhe;
1316
1317 if (!bfd_generic_link_read_symbols (is->the_bfd))
1318 {
1319 einfo (_("%B%F: could not read symbols: %E\n"),
1320 is->the_bfd);
1321 return;
1322 }
1323 symbols = bfd_get_outsymbols (is->the_bfd);
1324 nsyms = bfd_get_symcount (is->the_bfd);
1325
1326 for (src_count = 0; src_count < nsyms; src_count++)
1327 {
1328 if (symbols[src_count]->section->id == stub_sec->id)
1329 {
1330 /* This symbol belongs to the section containing
1331 the stub. */
1332 blhe = bfd_link_hash_lookup (link_info.hash,
1333 symbols[src_count]->name,
1334 FALSE, FALSE, TRUE);
1335 /* If the symbol in the stub section has no other
1336 undefined references, exclude the stub section
1337 from the final link. */
1338 if (blhe && (blhe->type == bfd_link_hash_defined)
1339 && (blhe->u.undef.next == NULL))
1340 stub_sec->flags |= SEC_EXCLUDE;
1341 }
1342 }
1343 }
1344 }
1345 }
1346 }
1347 }
1348 \f
1349 static void
1350 gld_${EMULATION_NAME}_before_allocation (void)
1351 {
1352 #ifdef TARGET_IS_ppcpe
1353 /* Here we rummage through the found bfds to collect toc information. */
1354 {
1355 LANG_FOR_EACH_INPUT_STATEMENT (is)
1356 {
1357 if (!ppc_process_before_allocation (is->the_bfd, &link_info))
1358 {
1359 /* xgettext:c-format */
1360 einfo (_("Errors encountered processing file %s\n"), is->filename);
1361 }
1362 }
1363 }
1364
1365 /* We have seen it all. Allocate it, and carry on. */
1366 ppc_allocate_toc_section (&link_info);
1367 #endif /* TARGET_IS_ppcpe */
1368
1369 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1370 /* FIXME: we should be able to set the size of the interworking stub
1371 section.
1372
1373 Here we rummage through the found bfds to collect glue
1374 information. FIXME: should this be based on a command line
1375 option? krk@cygnus.com. */
1376 {
1377 LANG_FOR_EACH_INPUT_STATEMENT (is)
1378 {
1379 if (! bfd_arm_process_before_allocation
1380 (is->the_bfd, & link_info, support_old_code))
1381 {
1382 /* xgettext:c-format */
1383 einfo (_("Errors encountered processing file %s for interworking\n"),
1384 is->filename);
1385 }
1386 }
1387 }
1388
1389 /* We have seen it all. Allocate it, and carry on. */
1390 bfd_arm_allocate_interworking_sections (& link_info);
1391 #endif /* TARGET_IS_armpe || TARGET_IS_arm_epoc_pe || TARGET_IS_arm_wince_pe */
1392
1393 before_allocation_default ();
1394 }
1395 \f
1396 #ifdef DLL_SUPPORT
1397 /* This is called when an input file isn't recognized as a BFD. We
1398 check here for .DEF files and pull them in automatically. */
1399
1400 static int
1401 saw_option (char *option)
1402 {
1403 int i;
1404
1405 for (i = 0; init[i].ptr; i++)
1406 if (strcmp (init[i].symbol, option) == 0)
1407 return init[i].inited;
1408 return 0;
1409 }
1410 #endif /* DLL_SUPPORT */
1411
1412 static bfd_boolean
1413 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1414 {
1415 #ifdef DLL_SUPPORT
1416 const char *ext = entry->filename + strlen (entry->filename) - 4;
1417
1418 if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0)
1419 {
1420 pe_def_file = def_file_parse (entry->filename, pe_def_file);
1421
1422 if (pe_def_file)
1423 {
1424 int i, buflen=0, len;
1425 char *buf;
1426
1427 for (i = 0; i < pe_def_file->num_exports; i++)
1428 {
1429 len = strlen (pe_def_file->exports[i].internal_name);
1430 if (buflen < len + 2)
1431 buflen = len + 2;
1432 }
1433
1434 buf = (char *) xmalloc (buflen);
1435
1436 for (i = 0; i < pe_def_file->num_exports; i++)
1437 {
1438 struct bfd_link_hash_entry *h;
1439
1440 sprintf (buf, "%s%s", U (""), pe_def_file->exports[i].internal_name);
1441
1442 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1443 if (h == (struct bfd_link_hash_entry *) NULL)
1444 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1445 if (h->type == bfd_link_hash_new)
1446 {
1447 h->type = bfd_link_hash_undefined;
1448 h->u.undef.abfd = NULL;
1449 bfd_link_add_undef (link_info.hash, h);
1450 }
1451 }
1452 free (buf);
1453
1454 /* def_file_print (stdout, pe_def_file); */
1455 if (pe_def_file->is_dll == 1)
1456 link_info.shared = 1;
1457
1458 if (pe_def_file->base_address != (bfd_vma)(-1))
1459 {
1460 pe.ImageBase
1461 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1462 = init[IMAGEBASEOFF].value
1463 = pe_def_file->base_address;
1464 init[IMAGEBASEOFF].inited = 1;
1465 if (image_base_statement)
1466 image_base_statement->exp = exp_assop ('=', "__image_base__",
1467 exp_intop (pe.ImageBase));
1468 }
1469
1470 if (pe_def_file->stack_reserve != -1
1471 && ! saw_option ("__size_of_stack_reserve__"))
1472 {
1473 pe.SizeOfStackReserve = pe_def_file->stack_reserve;
1474 if (pe_def_file->stack_commit != -1)
1475 pe.SizeOfStackCommit = pe_def_file->stack_commit;
1476 }
1477 if (pe_def_file->heap_reserve != -1
1478 && ! saw_option ("__size_of_heap_reserve__"))
1479 {
1480 pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
1481 if (pe_def_file->heap_commit != -1)
1482 pe.SizeOfHeapCommit = pe_def_file->heap_commit;
1483 }
1484 return TRUE;
1485 }
1486 }
1487 #endif
1488 return FALSE;
1489 }
1490
1491 static bfd_boolean
1492 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1493 {
1494 #ifdef DLL_SUPPORT
1495 #ifdef TARGET_IS_i386pe
1496 pe_dll_id_target ("pei-i386");
1497 #endif
1498 #ifdef TARGET_IS_shpe
1499 pe_dll_id_target ("pei-shl");
1500 #endif
1501 #ifdef TARGET_IS_mipspe
1502 pe_dll_id_target ("pei-mips");
1503 #endif
1504 #ifdef TARGET_IS_armpe
1505 pe_dll_id_target ("pei-arm-little");
1506 #endif
1507 #ifdef TARGET_IS_arm_epoc_pe
1508 pe_dll_id_target ("epoc-pei-arm-little");
1509 #endif
1510 #ifdef TARGET_IS_arm_wince_pe
1511 pe_dll_id_target ("pei-arm-wince-little");
1512 #endif
1513 if (pe_bfd_is_dll (entry->the_bfd))
1514 return pe_implied_import_dll (entry->filename);
1515 #endif
1516 return FALSE;
1517 }
1518
1519 static void
1520 gld_${EMULATION_NAME}_finish (void)
1521 {
1522 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1523 struct bfd_link_hash_entry * h;
1524
1525 if (thumb_entry_symbol != NULL)
1526 {
1527 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
1528 FALSE, FALSE, TRUE);
1529
1530 if (h != (struct bfd_link_hash_entry *) NULL
1531 && (h->type == bfd_link_hash_defined
1532 || h->type == bfd_link_hash_defweak)
1533 && h->u.def.section->output_section != NULL)
1534 {
1535 static char buffer[32];
1536 bfd_vma val;
1537
1538 /* Special procesing is required for a Thumb entry symbol. The
1539 bottom bit of its address must be set. */
1540 val = (h->u.def.value
1541 + bfd_get_section_vma (link_info.output_bfd,
1542 h->u.def.section->output_section)
1543 + h->u.def.section->output_offset);
1544
1545 val |= 1;
1546
1547 /* Now convert this value into a string and store it in entry_symbol
1548 where the lang_finish() function will pick it up. */
1549 buffer[0] = '0';
1550 buffer[1] = 'x';
1551
1552 sprintf_vma (buffer + 2, val);
1553
1554 if (entry_symbol.name != NULL && entry_from_cmdline)
1555 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
1556 thumb_entry_symbol, entry_symbol.name);
1557 entry_symbol.name = buffer;
1558 }
1559 else
1560 einfo (_("%P: warning: cannot find thumb start symbol %s\n"), thumb_entry_symbol);
1561 }
1562 #endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) */
1563
1564 finish_default ();
1565
1566 #ifdef DLL_SUPPORT
1567 if (link_info.shared
1568 #if !defined(TARGET_IS_shpe) && !defined(TARGET_IS_mipspe)
1569 || (!link_info.relocatable && pe_def_file->num_exports != 0)
1570 #endif
1571 )
1572 {
1573 pe_dll_fill_sections (link_info.output_bfd, &link_info);
1574 if (pe_implib_filename)
1575 pe_dll_generate_implib (pe_def_file, pe_implib_filename);
1576 }
1577 #if defined(TARGET_IS_shpe) || defined(TARGET_IS_mipspe)
1578 /* ARM doesn't need relocs. */
1579 else
1580 {
1581 pe_exe_fill_sections (link_info.output_bfd, &link_info);
1582 }
1583 #endif
1584
1585 if (pe_out_def_filename)
1586 pe_dll_generate_def_file (pe_out_def_filename);
1587 #endif /* DLL_SUPPORT */
1588
1589 /* I don't know where .idata gets set as code, but it shouldn't be. */
1590 {
1591 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
1592
1593 if (asec)
1594 {
1595 asec->flags &= ~SEC_CODE;
1596 asec->flags |= SEC_DATA;
1597 }
1598 }
1599 }
1600
1601 \f
1602 /* Place an orphan section.
1603
1604 We use this to put sections in a reasonable place in the file, and
1605 to ensure that they are aligned as required.
1606
1607 We handle grouped sections here as well. A section named .foo$nn
1608 goes into the output section .foo. All grouped sections are sorted
1609 by name.
1610
1611 Grouped sections for the default sections are handled by the
1612 default linker script using wildcards, and are sorted by
1613 sort_sections. */
1614
1615 static bfd_boolean
1616 gld_${EMULATION_NAME}_place_orphan (asection *s)
1617 {
1618 const char *secname;
1619 const char *orig_secname;
1620 char *dollar = NULL;
1621 lang_output_section_statement_type *os;
1622 lang_statement_list_type add_child;
1623
1624 secname = bfd_get_section_name (s->owner, s);
1625
1626 /* Look through the script to see where to place this section. */
1627 orig_secname = secname;
1628 if (!link_info.relocatable
1629 && (dollar = strchr (secname, '$')) != NULL)
1630 {
1631 size_t len = dollar - orig_secname;
1632 char *newname = xmalloc (len + 1);
1633 memcpy (newname, orig_secname, len);
1634 newname[len] = '\0';
1635 secname = newname;
1636 }
1637
1638 os = lang_output_section_find (secname);
1639
1640 lang_list_init (&add_child);
1641
1642 if (os != NULL
1643 && (os->bfd_section == NULL
1644 || os->bfd_section->flags == 0
1645 || ((s->flags ^ os->bfd_section->flags)
1646 & (SEC_LOAD | SEC_ALLOC)) == 0))
1647 {
1648 /* We already have an output section statement with this
1649 name, and its bfd section, if any, has compatible flags.
1650 If the section already exists but does not have any flags set,
1651 then it has been created by the linker, probably as a result of
1652 a --section-start command line switch. */
1653 lang_add_section (&add_child, s, os);
1654 }
1655 else
1656 {
1657 static struct orphan_save hold[] =
1658 {
1659 { ".text",
1660 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1661 0, 0, 0, 0 },
1662 { ".rdata",
1663 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1664 0, 0, 0, 0 },
1665 { ".data",
1666 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1667 0, 0, 0, 0 },
1668 { ".bss",
1669 SEC_ALLOC,
1670 0, 0, 0, 0 }
1671 };
1672 enum orphan_save_index
1673 {
1674 orphan_text = 0,
1675 orphan_rodata,
1676 orphan_data,
1677 orphan_bss
1678 };
1679 static int orphan_init_done = 0;
1680 struct orphan_save *place;
1681 lang_output_section_statement_type *after;
1682 etree_type *address;
1683
1684 if (!orphan_init_done)
1685 {
1686 struct orphan_save *ho;
1687 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1688 if (ho->name != NULL)
1689 {
1690 ho->os = lang_output_section_find (ho->name);
1691 if (ho->os != NULL && ho->os->flags == 0)
1692 ho->os->flags = ho->flags;
1693 }
1694 orphan_init_done = 1;
1695 }
1696
1697 /* Try to put the new output section in a reasonable place based
1698 on the section name and section flags. */
1699
1700 place = NULL;
1701 if ((s->flags & SEC_ALLOC) == 0)
1702 ;
1703 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
1704 place = &hold[orphan_bss];
1705 else if ((s->flags & SEC_READONLY) == 0)
1706 place = &hold[orphan_data];
1707 else if ((s->flags & SEC_CODE) == 0)
1708 place = &hold[orphan_rodata];
1709 else
1710 place = &hold[orphan_text];
1711
1712 after = NULL;
1713 if (place != NULL)
1714 {
1715 if (place->os == NULL)
1716 place->os = lang_output_section_find (place->name);
1717 after = place->os;
1718 if (after == NULL)
1719 after = lang_output_section_find_by_flags (s, &place->os, NULL);
1720 if (after == NULL)
1721 /* *ABS* is always the first output section statement. */
1722 after = (&lang_output_section_statement.head
1723 ->output_section_statement);
1724 }
1725
1726 /* Choose a unique name for the section. This will be needed if the
1727 same section name appears in the input file with different
1728 loadable or allocatable characteristics. */
1729 if (bfd_get_section_by_name (link_info.output_bfd, secname) != NULL)
1730 {
1731 static int count = 1;
1732 secname = bfd_get_unique_section_name (link_info.output_bfd,
1733 secname, &count);
1734 if (secname == NULL)
1735 einfo ("%F%P: place_orphan failed: %E\n");
1736 }
1737
1738 /* All sections in an executable must be aligned to a page boundary. */
1739 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
1740 os = lang_insert_orphan (s, secname, after, place, address, &add_child);
1741 }
1742
1743 {
1744 lang_statement_union_type **pl = &os->children.head;
1745
1746 if (dollar != NULL)
1747 {
1748 bfd_boolean found_dollar;
1749
1750 /* The section name has a '$'. Sort it with the other '$'
1751 sections. */
1752 found_dollar = FALSE;
1753 for ( ; *pl != NULL; pl = &(*pl)->header.next)
1754 {
1755 lang_input_section_type *ls;
1756 const char *lname;
1757
1758 if ((*pl)->header.type != lang_input_section_enum)
1759 continue;
1760
1761 ls = &(*pl)->input_section;
1762
1763 lname = bfd_get_section_name (ls->section->owner, ls->section);
1764 if (strchr (lname, '$') == NULL)
1765 {
1766 if (found_dollar)
1767 break;
1768 }
1769 else
1770 {
1771 found_dollar = TRUE;
1772 if (strcmp (orig_secname, lname) < 0)
1773 break;
1774 }
1775 }
1776 }
1777
1778 if (add_child.head != NULL)
1779 {
1780 add_child.head->header.next = *pl;
1781 *pl = add_child.head;
1782 }
1783 }
1784
1785 return TRUE;
1786 }
1787
1788 static bfd_boolean
1789 gld_${EMULATION_NAME}_open_dynamic_archive
1790 (const char *arch ATTRIBUTE_UNUSED, search_dirs_type *search,
1791 lang_input_statement_type *entry)
1792 {
1793 static const struct
1794 {
1795 const char * format;
1796 bfd_boolean use_prefix;
1797 }
1798 libname_fmt [] =
1799 {
1800 /* Preferred explicit import library for dll's. */
1801 { "lib%s.dll.a", FALSE },
1802 /* Alternate explicit import library for dll's. */
1803 { "%s.dll.a", FALSE },
1804 /* "libfoo.a" could be either an import lib or a static lib.
1805 For backwards compatibility, libfoo.a needs to precede
1806 libfoo.dll and foo.dll in the search. */
1807 { "lib%s.a", FALSE },
1808 /* The 'native' spelling of an import lib name is "foo.lib". */
1809 { "%s.lib", FALSE },
1810 #ifdef DLL_SUPPORT
1811 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
1812 { "%s%s.dll", TRUE },
1813 #endif
1814 /* Try "libfoo.dll" (default preferred dll name). */
1815 { "lib%s.dll", FALSE },
1816 /* Finally try 'native' dll name "foo.dll". */
1817 { "%s.dll", FALSE },
1818 /* Note: If adding more formats to this table, make sure to check to
1819 see if their length is longer than libname_fmt[0].format, and if
1820 so, update the call to xmalloc() below. */
1821 { NULL, FALSE }
1822 };
1823 static unsigned int format_max_len = 0;
1824 const char * filename;
1825 char * full_string;
1826 char * base_string;
1827 unsigned int i;
1828
1829
1830 if (! entry->is_archive)
1831 return FALSE;
1832
1833 filename = entry->filename;
1834
1835 if (format_max_len == 0)
1836 /* We need to allow space in the memory that we are going to allocate
1837 for the characters in the format string. Since the format array is
1838 static we only need to calculate this information once. In theory
1839 this value could also be computed statically, but this introduces
1840 the possibility for a discrepancy and hence a possible memory
1841 corruption. The lengths we compute here will be too long because
1842 they will include any formating characters (%s) in the strings, but
1843 this will not matter. */
1844 for (i = 0; libname_fmt[i].format; i++)
1845 if (format_max_len < strlen (libname_fmt[i].format))
1846 format_max_len = strlen (libname_fmt[i].format);
1847
1848 full_string = xmalloc (strlen (search->name)
1849 + strlen (filename)
1850 + format_max_len
1851 #ifdef DLL_SUPPORT
1852 + (pe_dll_search_prefix
1853 ? strlen (pe_dll_search_prefix) : 0)
1854 #endif
1855 /* Allow for the terminating NUL and for the path
1856 separator character that is inserted between
1857 search->name and the start of the format string. */
1858 + 2);
1859
1860 sprintf (full_string, "%s/", search->name);
1861 base_string = full_string + strlen (full_string);
1862
1863 for (i = 0; libname_fmt[i].format; i++)
1864 {
1865 #ifdef DLL_SUPPORT
1866 if (libname_fmt[i].use_prefix)
1867 {
1868 if (!pe_dll_search_prefix)
1869 continue;
1870 sprintf (base_string, libname_fmt[i].format, pe_dll_search_prefix, filename);
1871 }
1872 else
1873 #endif
1874 sprintf (base_string, libname_fmt[i].format, filename);
1875
1876 if (ldfile_try_open_bfd (full_string, entry))
1877 break;
1878 }
1879
1880 if (!libname_fmt[i].format)
1881 {
1882 free (full_string);
1883 return FALSE;
1884 }
1885
1886 entry->filename = full_string;
1887
1888 return TRUE;
1889 }
1890
1891 static int
1892 gld_${EMULATION_NAME}_find_potential_libraries
1893 (char *name, lang_input_statement_type *entry)
1894 {
1895 return ldfile_open_file_search (name, entry, "", ".lib");
1896 }
1897 \f
1898 static char *
1899 gld_${EMULATION_NAME}_get_script (int *isfile)
1900 EOF
1901 # Scripts compiled in.
1902 # sed commands to quote an ld script as a C string.
1903 sc="-f stringify.sed"
1904
1905 fragment <<EOF
1906 {
1907 *isfile = 0;
1908
1909 if (link_info.relocatable && config.build_constructors)
1910 return
1911 EOF
1912 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1913 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
1914 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1915 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1916 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1917 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1918 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1919 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
1920 echo ' ; else if (link_info.pei386_auto_import == 1) return' >> e${EMULATION_NAME}.c
1921 sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
1922 fi
1923 echo ' ; else return' >> e${EMULATION_NAME}.c
1924 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1925 echo '; }' >> e${EMULATION_NAME}.c
1926
1927 fragment <<EOF
1928
1929
1930 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1931 {
1932 gld_${EMULATION_NAME}_before_parse,
1933 syslib_default,
1934 hll_default,
1935 gld_${EMULATION_NAME}_after_parse,
1936 gld_${EMULATION_NAME}_after_open,
1937 after_allocation_default,
1938 set_output_arch_default,
1939 ldemul_default_target,
1940 gld_${EMULATION_NAME}_before_allocation,
1941 gld_${EMULATION_NAME}_get_script,
1942 "${EMULATION_NAME}",
1943 "${OUTPUT_FORMAT}",
1944 gld_${EMULATION_NAME}_finish,
1945 NULL, /* Create output section statements. */
1946 gld_${EMULATION_NAME}_open_dynamic_archive,
1947 gld_${EMULATION_NAME}_place_orphan,
1948 gld_${EMULATION_NAME}_set_symbols,
1949 NULL, /* parse_args */
1950 gld${EMULATION_NAME}_add_options,
1951 gld${EMULATION_NAME}_handle_option,
1952 gld_${EMULATION_NAME}_unrecognized_file,
1953 gld_${EMULATION_NAME}_list_options,
1954 gld_${EMULATION_NAME}_recognized_file,
1955 gld_${EMULATION_NAME}_find_potential_libraries,
1956 NULL /* new_vers_pattern. */
1957 };
1958 EOF
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