| blob | 43c0be348f372df8e4aa7e29ec60f556f593ffb7 |
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${EMULATION_NAME}.c # there, now line numbers match ;-)
11 fragment <<EOF
12 /* Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
13 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
15 This file is part of the GNU Binutils.
17 This program is free software; you can redistribute it and/or modify
18 it under the terms of the GNU General Public License as published by
19 the Free Software Foundation; either version 3 of the License, or
20 (at your option) any later version.
22 This program is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 GNU General Public License for more details.
27 You should have received a copy of the GNU General Public License
28 along with this program; if not, write to the Free Software
29 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
30 MA 02110-1301, USA. */
33 /* For WINDOWS_NT */
34 /* The original file generated returned different default scripts depending
35 on whether certain switches were set, but these switches pertain to the
36 Linux system and that particular version of coff. In the NT case, we
37 only determine if the subsystem is console or windows in order to select
38 the correct entry point by default. */
40 #define TARGET_IS_${EMULATION_NAME}
42 /* Do this before including bfd.h, so we prototype the right functions. */
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
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"
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"
77 /* FIXME: This is a BFD internal header file, and we should not be
78 using it here. */
79 #include "../bfd/libcoff.h"
81 #include "deffile.h"
82 #include "pe-dll.h"
83 #include "safe-ctype.h"
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
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
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
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
121 #define U(S) ${INITIAL_SYMBOL_CHAR} S
123 static struct internal_extra_pe_aouthdr pe;
124 static int dll;
125 static flagword real_flags = 0;
126 static int support_old_code = 0;
127 static char * thumb_entry_symbol = NULL;
128 static lang_assignment_statement_type *image_base_statement = 0;
130 #ifdef DLL_SUPPORT
131 static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */
132 static char *pe_out_def_filename = NULL;
133 static char *pe_implib_filename = NULL;
134 static int pe_enable_auto_image_base = 0;
135 static char *pe_dll_search_prefix = NULL;
136 #endif
138 extern const char *output_filename;
140 static void
141 gld_${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; /* Use by default version 1. */
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. */
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 #define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1 \
207 (OPTION_LARGE_ADDRESS_AWARE + 1)
208 #define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2 \
209 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1 + 1)
211 static void
212 gld${EMULATION_NAME}_add_options
213 (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
214 struct option **longopts, int nrl ATTRIBUTE_UNUSED,
215 struct option **really_longopts ATTRIBUTE_UNUSED)
216 {
217 static const struct option xtra_long[] = {
218 /* PE options */
219 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
220 {"dll", no_argument, NULL, OPTION_DLL},
221 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
222 {"heap", required_argument, NULL, OPTION_HEAP},
223 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
224 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
225 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
226 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
227 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
228 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
229 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
230 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
231 {"stack", required_argument, NULL, OPTION_STACK},
232 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
233 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
234 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
235 #ifdef DLL_SUPPORT
236 /* getopt allows abbreviations, so we do this to stop it from treating -o
237 as an abbreviation for this option */
238 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
239 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
240 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
241 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
242 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
243 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
244 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
245 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
246 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
247 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
248 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
249 /* getopt() allows abbreviations, so we do this to stop it from
250 treating -c as an abbreviation for these --compat-implib. */
251 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
252 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
253 {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
254 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
255 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
256 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
257 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
258 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
259 {"enable-extra-pe-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
260 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
261 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
262 {"enable-runtime-pseudo-reloc-v1", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1},
263 {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2},
264 #endif
265 {"large-address-aware", no_argument, NULL, OPTION_LARGE_ADDRESS_AWARE},
266 {NULL, no_argument, NULL, 0}
267 };
269 *longopts = (struct option *)
270 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
271 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
272 }
274 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
275 parameters which may be input from the command line. */
277 typedef struct
278 {
279 void *ptr;
280 int size;
281 int value;
282 char *symbol;
283 int inited;
284 } definfo;
286 #define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0}
288 static definfo init[] =
289 {
290 /* imagebase must be first */
291 #define IMAGEBASEOFF 0
292 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE),
293 #define DLLOFF 1
294 {&dll, sizeof(dll), 0, "__dll__", 0},
295 #define MSIMAGEBASEOFF 2
296 D(ImageBase, U ("__ImageBase"), NT_EXE_IMAGE_BASE),
297 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
298 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
299 D(MajorOperatingSystemVersion,"__major_os_version__", 4),
300 D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
301 D(MajorImageVersion,"__major_image_version__", 1),
302 D(MinorImageVersion,"__minor_image_version__", 0),
303 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
304 D(MajorSubsystemVersion,"__major_subsystem_version__", 3),
305 #else
306 D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
307 #endif
308 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
309 D(Subsystem,"__subsystem__", ${SUBSYSTEM}),
310 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000),
311 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
312 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
313 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
314 D(LoaderFlags,"__loader_flags__", 0x0),
315 { NULL, 0, 0, NULL, 0 }
316 };
319 static void
320 gld_${EMULATION_NAME}_list_options (FILE *file)
321 {
322 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
323 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
324 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
325 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
326 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
327 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
328 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
329 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
330 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
331 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
332 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
333 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
334 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
335 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
336 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
337 fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n"));
338 #ifdef DLL_SUPPORT
339 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
340 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
341 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
342 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
343 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
344 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
345 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
346 fprintf (file, _(" --out-implib <file> Generate import library\n"));
347 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
348 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n"));
349 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
350 create __imp_<SYMBOL> as well.\n"));
351 fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\
352 unless user specifies one\n"));
353 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));
354 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\
355 an importlib, use <string><basename>.dll\n\
356 in preference to lib<basename>.dll \n"));
357 fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to\n\
358 __imp_sym for DATA references\n"));
359 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
360 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\
361 adding pseudo-relocations resolved at\n\
362 runtime.\n"));
363 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\
364 auto-imported DATA.\n"));
365 fprintf (file, _(" --enable-extra-pe-debug Enable verbose debug output when building\n\
366 or linking to DLLs (esp. auto-import)\n"));
367 #endif
368 fprintf (file, _(" --large-address-aware Executable supports virtual addresses\n\
369 greater than 2 gigabytes\n"));
370 }
373 static void
374 set_pe_name (char *name, long val)
375 {
376 int i;
378 /* Find the name and set it. */
379 for (i = 0; init[i].ptr; i++)
380 {
381 if (strcmp (name, init[i].symbol) == 0)
382 {
383 init[i].value = val;
384 init[i].inited = 1;
385 if (strcmp (name,"__image_base__") == 0)
386 set_pe_name (U ("__ImageBase"), val);
387 return;
388 }
389 }
390 abort ();
391 }
394 static void
395 set_pe_subsystem (void)
396 {
397 const char *sver;
398 const char *entry;
399 const char *initial_symbol_char;
400 char *end;
401 int len;
402 int i;
403 int subsystem;
404 unsigned long temp_subsystem;
405 static const struct
406 {
407 const char *name;
408 const int value;
409 const char *entry;
410 }
411 v[] =
412 {
413 { "native", 1, "NtProcessStartup" },
414 { "windows", 2, "WinMainCRTStartup" },
415 { "console", 3, "mainCRTStartup" },
416 { "posix", 7, "__PosixProcessStartup"},
417 { "wince", 9, "WinMainCRTStartup" },
418 { "xbox", 14, "mainCRTStartup" },
419 { NULL, 0, NULL }
420 };
421 /* Entry point name for arbitrary subsystem numbers. */
422 static const char default_entry[] = "mainCRTStartup";
424 /* Check for the presence of a version number. */
425 sver = strchr (optarg, ':');
426 if (sver == NULL)
427 len = strlen (optarg);
428 else
429 {
430 len = sver - optarg;
431 set_pe_name ("__major_subsystem_version__",
432 strtoul (sver + 1, &end, 0));
433 if (*end == '.')
434 set_pe_name ("__minor_subsystem_version__",
435 strtoul (end + 1, &end, 0));
436 if (*end != '\0')
437 einfo (_("%P: warning: bad version number in -subsystem option\n"));
438 }
440 /* Check for numeric subsystem. */
441 temp_subsystem = strtoul (optarg, & end, 0);
442 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
443 {
444 /* Search list for a numeric match to use its entry point. */
445 for (i = 0; v[i].name; i++)
446 if (v[i].value == (int) temp_subsystem)
447 break;
449 /* If no match, use the default. */
450 if (v[i].name != NULL)
451 entry = v[i].entry;
452 else
453 entry = default_entry;
455 /* Use this subsystem. */
456 subsystem = (int) temp_subsystem;
457 }
458 else
459 {
460 /* Search for subsystem by name. */
461 for (i = 0; v[i].name; i++)
462 if (strncmp (optarg, v[i].name, len) == 0
463 && v[i].name[len] == '\0')
464 break;
466 if (v[i].name == NULL)
467 {
468 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
469 return;
470 }
472 entry = v[i].entry;
473 subsystem = v[i].value;
474 }
476 set_pe_name ("__subsystem__", subsystem);
478 initial_symbol_char = ${INITIAL_SYMBOL_CHAR};
479 if (*initial_symbol_char != '\0')
480 {
481 char *alc_entry;
483 /* lang_default_entry expects its argument to be permanently
484 allocated, so we don't free this string. */
485 alc_entry = xmalloc (strlen (initial_symbol_char)
486 + strlen (entry)
487 + 1);
488 strcpy (alc_entry, initial_symbol_char);
489 strcat (alc_entry, entry);
490 entry = alc_entry;
491 }
493 lang_default_entry (entry);
495 return;
496 }
499 static void
500 set_pe_value (char *name)
501 {
502 char *end;
504 set_pe_name (name, strtoul (optarg, &end, 0));
506 if (end == optarg)
507 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
509 optarg = end;
510 }
513 static void
514 set_pe_stack_heap (char *resname, char *comname)
515 {
516 set_pe_value (resname);
518 if (*optarg == ',')
519 {
520 optarg++;
521 set_pe_value (comname);
522 }
523 else if (*optarg)
524 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
525 }
528 static bfd_boolean
529 gld${EMULATION_NAME}_handle_option (int optc)
530 {
531 switch (optc)
532 {
533 default:
534 return FALSE;
536 case OPTION_BASE_FILE:
537 link_info.base_file = fopen (optarg, FOPEN_WB);
538 if (link_info.base_file == NULL)
539 {
540 /* xgettext:c-format */
541 fprintf (stderr, _("%s: Can't open base file %s\n"),
542 program_name, optarg);
543 xexit (1);
544 }
545 break;
547 /* PE options. */
548 case OPTION_HEAP:
549 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
550 break;
551 case OPTION_STACK:
552 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
553 break;
554 case OPTION_SUBSYSTEM:
555 set_pe_subsystem ();
556 break;
557 case OPTION_MAJOR_OS_VERSION:
558 set_pe_value ("__major_os_version__");
559 break;
560 case OPTION_MINOR_OS_VERSION:
561 set_pe_value ("__minor_os_version__");
562 break;
563 case OPTION_MAJOR_SUBSYSTEM_VERSION:
564 set_pe_value ("__major_subsystem_version__");
565 break;
566 case OPTION_MINOR_SUBSYSTEM_VERSION:
567 set_pe_value ("__minor_subsystem_version__");
568 break;
569 case OPTION_MAJOR_IMAGE_VERSION:
570 set_pe_value ("__major_image_version__");
571 break;
572 case OPTION_MINOR_IMAGE_VERSION:
573 set_pe_value ("__minor_image_version__");
574 break;
575 case OPTION_FILE_ALIGNMENT:
576 set_pe_value ("__file_alignment__");
577 break;
578 case OPTION_SECTION_ALIGNMENT:
579 set_pe_value ("__section_alignment__");
580 break;
581 case OPTION_DLL:
582 set_pe_name ("__dll__", 1);
583 break;
584 case OPTION_IMAGE_BASE:
585 set_pe_value ("__image_base__");
586 break;
587 case OPTION_SUPPORT_OLD_CODE:
588 support_old_code = 1;
589 break;
590 case OPTION_THUMB_ENTRY:
591 thumb_entry_symbol = optarg;
592 break;
593 #ifdef DLL_SUPPORT
594 case OPTION_OUT_DEF:
595 pe_out_def_filename = xstrdup (optarg);
596 break;
597 case OPTION_EXPORT_ALL:
598 pe_dll_export_everything = 1;
599 break;
600 case OPTION_EXCLUDE_SYMBOLS:
601 pe_dll_add_excludes (optarg, 0);
602 break;
603 case OPTION_EXCLUDE_LIBS:
604 pe_dll_add_excludes (optarg, 1);
605 break;
606 case OPTION_KILL_ATS:
607 pe_dll_kill_ats = 1;
608 break;
609 case OPTION_STDCALL_ALIASES:
610 pe_dll_stdcall_aliases = 1;
611 break;
612 case OPTION_ENABLE_STDCALL_FIXUP:
613 pe_enable_stdcall_fixup = 1;
614 break;
615 case OPTION_DISABLE_STDCALL_FIXUP:
616 pe_enable_stdcall_fixup = 0;
617 break;
618 case OPTION_IMPLIB_FILENAME:
619 pe_implib_filename = xstrdup (optarg);
620 break;
621 case OPTION_WARN_DUPLICATE_EXPORTS:
622 pe_dll_warn_dup_exports = 1;
623 break;
624 case OPTION_IMP_COMPAT:
625 pe_dll_compat_implib = 1;
626 break;
627 case OPTION_ENABLE_AUTO_IMAGE_BASE:
628 pe_enable_auto_image_base = 1;
629 break;
630 case OPTION_DISABLE_AUTO_IMAGE_BASE:
631 pe_enable_auto_image_base = 0;
632 break;
633 case OPTION_DLL_SEARCH_PREFIX:
634 pe_dll_search_prefix = xstrdup (optarg);
635 break;
636 case OPTION_NO_DEFAULT_EXCLUDES:
637 pe_dll_do_default_excludes = 0;
638 break;
639 case OPTION_DLL_ENABLE_AUTO_IMPORT:
640 link_info.pei386_auto_import = 1;
641 break;
642 case OPTION_DLL_DISABLE_AUTO_IMPORT:
643 link_info.pei386_auto_import = 0;
644 break;
645 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
646 link_info.pei386_runtime_pseudo_reloc = 1;
647 break;
648 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1:
649 link_info.pei386_runtime_pseudo_reloc = 1;
650 break;
651 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
652 link_info.pei386_runtime_pseudo_reloc = 2;
653 break;
654 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
655 link_info.pei386_runtime_pseudo_reloc = 0;
656 break;
657 case OPTION_ENABLE_EXTRA_PE_DEBUG:
658 pe_dll_extra_pe_debug = 1;
659 break;
660 #endif
661 case OPTION_LARGE_ADDRESS_AWARE:
662 real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
663 break;
664 }
665 return TRUE;
666 }
667 \f
669 #ifdef DLL_SUPPORT
670 static unsigned long
671 strhash (const char *str)
672 {
673 const unsigned char *s;
674 unsigned long hash;
675 unsigned int c;
676 unsigned int len;
678 hash = 0;
679 len = 0;
680 s = (const unsigned char *) str;
681 while ((c = *s++) != '\0')
682 {
683 hash += c + (c << 17);
684 hash ^= hash >> 2;
685 ++len;
686 }
687 hash += len + (len << 17);
688 hash ^= hash >> 2;
690 return hash;
691 }
693 /* Use the output file to create a image base for relocatable DLLs. */
695 static unsigned long
696 compute_dll_image_base (const char *ofile)
697 {
698 unsigned long hash = strhash (ofile);
699 return 0x61300000 + ((hash << 16) & 0x0FFC0000);
700 }
701 #endif
703 /* Assign values to the special symbols before the linker script is
704 read. */
706 static void
707 gld_${EMULATION_NAME}_set_symbols (void)
708 {
709 /* Run through and invent symbols for all the
710 names and insert the defaults. */
711 int j;
712 lang_statement_list_type *save;
714 if (!init[IMAGEBASEOFF].inited)
715 {
716 if (link_info.relocatable)
717 init[IMAGEBASEOFF].value = 0;
718 else if (init[DLLOFF].value || (link_info.shared && !link_info.pie))
719 #ifdef DLL_SUPPORT
720 init[IMAGEBASEOFF].value = (pe_enable_auto_image_base) ?
721 compute_dll_image_base (output_filename) : NT_DLL_IMAGE_BASE;
722 #else
723 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
724 #endif
725 else
726 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
727 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
728 }
730 /* Don't do any symbol assignments if this is a relocatable link. */
731 if (link_info.relocatable)
732 return;
734 /* Glue the assignments into the abs section. */
735 save = stat_ptr;
737 stat_ptr = &(abs_output_section->children);
739 for (j = 0; init[j].ptr; j++)
740 {
741 long val = init[j].value;
742 lang_assignment_statement_type *rv;
743 rv = lang_add_assignment (exp_assop ('=', init[j].symbol,
744 exp_intop (val)));
745 if (init[j].size == sizeof (short))
746 *(short *) init[j].ptr = val;
747 else if (init[j].size == sizeof (int))
748 *(int *) init[j].ptr = val;
749 else if (init[j].size == sizeof (long))
750 *(long *) init[j].ptr = val;
751 /* This might be a long long or other special type. */
752 else if (init[j].size == sizeof (bfd_vma))
753 *(bfd_vma *) init[j].ptr = val;
754 else abort ();
755 if (j == IMAGEBASEOFF)
756 image_base_statement = rv;
757 }
758 /* Restore the pointer. */
759 stat_ptr = save;
761 if (pe.FileAlignment >
762 pe.SectionAlignment)
763 {
764 einfo (_("%P: warning, file alignment > section alignment.\n"));
765 }
766 }
768 /* This is called after the linker script and the command line options
769 have been read. */
771 static void
772 gld_${EMULATION_NAME}_after_parse (void)
773 {
774 /* The Windows libraries are designed for the linker to treat the
775 entry point as an undefined symbol. Otherwise, the .obj that
776 defines mainCRTStartup is brought in because it is the first
777 encountered in libc.lib and it has other symbols in it which will
778 be pulled in by the link process. To avoid this, we act as
779 though the user specified -u with the entry point symbol.
781 This function is called after the linker script and command line
782 options have been read, so at this point we know the right entry
783 point. This function is called before the input files are
784 opened, so registering the symbol as undefined will make a
785 difference. */
787 if (! link_info.relocatable && entry_symbol.name != NULL)
788 ldlang_add_undef (entry_symbol.name);
789 }
791 /* pe-dll.c directly accesses pe_data_import_dll,
792 so it must be defined outside of #ifdef DLL_SUPPORT.
793 Note - this variable is deliberately not initialised.
794 This allows it to be treated as a common varaible, and only
795 exist in one incarnation in a multiple target enabled linker. */
796 char * pe_data_import_dll;
798 #ifdef DLL_SUPPORT
799 static struct bfd_link_hash_entry *pe_undef_found_sym;
801 static bfd_boolean
802 pe_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
803 {
804 int sl;
805 char *string = inf;
807 sl = strlen (string);
808 if (h->type == bfd_link_hash_defined
809 && strncmp (h->root.string, string, sl) == 0
810 && h->root.string[sl] == '@')
811 {
812 pe_undef_found_sym = h;
813 return FALSE;
814 }
815 return TRUE;
816 }
818 static void
819 pe_fixup_stdcalls (void)
820 {
821 static int gave_warning_message = 0;
822 struct bfd_link_hash_entry *undef, *sym;
824 if (pe_dll_extra_pe_debug)
825 printf ("%s\n", __FUNCTION__);
827 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
828 if (undef->type == bfd_link_hash_undefined)
829 {
830 char* at = strchr (undef->root.string, '@');
831 int lead_at = (*undef->root.string == '@');
832 /* For now, don't try to fixup fastcall symbols. */
834 if (at && !lead_at)
835 {
836 /* The symbol is a stdcall symbol, so let's look for a
837 cdecl symbol with the same name and resolve to that. */
838 char *cname = xstrdup (undef->root.string /* + lead_at */);
839 at = strchr (cname, '@');
840 *at = 0;
841 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
843 if (sym && sym->type == bfd_link_hash_defined)
844 {
845 undef->type = bfd_link_hash_defined;
846 undef->u.def.value = sym->u.def.value;
847 undef->u.def.section = sym->u.def.section;
849 if (pe_enable_stdcall_fixup == -1)
850 {
851 einfo (_("Warning: resolving %s by linking to %s\n"),
852 undef->root.string, cname);
853 if (! gave_warning_message)
854 {
855 gave_warning_message = 1;
856 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
857 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
858 }
859 }
860 }
861 }
862 else
863 {
864 /* The symbol is a cdecl symbol, so we look for stdcall
865 symbols - which means scanning the whole symbol table. */
866 pe_undef_found_sym = 0;
867 bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
868 (char *) undef->root.string);
869 sym = pe_undef_found_sym;
870 if (sym)
871 {
872 undef->type = bfd_link_hash_defined;
873 undef->u.def.value = sym->u.def.value;
874 undef->u.def.section = sym->u.def.section;
876 if (pe_enable_stdcall_fixup == -1)
877 {
878 einfo (_("Warning: resolving %s by linking to %s\n"),
879 undef->root.string, sym->root.string);
880 if (! gave_warning_message)
881 {
882 gave_warning_message = 1;
883 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
884 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
885 }
886 }
887 }
888 }
889 }
890 }
892 static int
893 make_import_fixup (arelent *rel, asection *s)
894 {
895 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
896 char addend[4];
898 if (pe_dll_extra_pe_debug)
899 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
900 (unsigned long) rel->address, (long) rel->addend);
902 if (! bfd_get_section_contents (s->owner, s, addend, rel->address, sizeof (addend)))
903 einfo (_("%C: Cannot get section contents - auto-import exception\n"),
904 s->owner, s, rel->address);
906 pe_create_import_fixup (rel, s, bfd_get_32 (s->owner, addend));
908 return 1;
909 }
911 static void
912 pe_find_data_imports (void)
913 {
914 struct bfd_link_hash_entry *undef, *sym;
916 if (link_info.pei386_auto_import == 0)
917 return;
919 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
920 {
921 if (undef->type == bfd_link_hash_undefined)
922 {
923 /* C++ symbols are *long*. */
924 char buf[4096];
926 if (pe_dll_extra_pe_debug)
927 printf ("%s:%s\n", __FUNCTION__, undef->root.string);
929 sprintf (buf, "__imp_%s", undef->root.string);
931 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
933 if (sym && sym->type == bfd_link_hash_defined)
934 {
935 bfd *b = sym->u.def.section->owner;
936 asymbol **symbols;
937 int nsyms, i;
939 if (link_info.pei386_auto_import == -1)
940 {
941 static bfd_boolean warned = FALSE;
943 info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"),
944 undef->root.string, buf);
946 /* PR linker/4844. */
947 if (! warned)
948 {
949 warned = TRUE;
950 einfo (_("%P: warning: auto-importing has been activated without --enable-auto-import specified on the command line.\n\
951 This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.\n"));
952 }
953 }
955 if (!bfd_generic_link_read_symbols (b))
956 {
957 einfo (_("%B%F: could not read symbols: %E\n"), b);
958 return;
959 }
961 symbols = bfd_get_outsymbols (b);
962 nsyms = bfd_get_symcount (b);
964 for (i = 0; i < nsyms; i++)
965 {
966 if (! CONST_STRNEQ (symbols[i]->name, U ("_head_")))
967 continue;
969 if (pe_dll_extra_pe_debug)
970 printf ("->%s\n", symbols[i]->name);
972 pe_data_import_dll = (char*) (symbols[i]->name +
973 sizeof (U ("_head_")) - 1);
974 break;
975 }
977 pe_walk_relocs_of_symbol (&link_info, undef->root.string,
978 make_import_fixup);
980 /* Let's differentiate it somehow from defined. */
981 undef->type = bfd_link_hash_defweak;
982 /* We replace original name with __imp_ prefixed, this
983 1) may trash memory 2) leads to duplicate symbol generation.
984 Still, IMHO it's better than having name poluted. */
985 undef->root.string = sym->root.string;
986 undef->u.def.value = sym->u.def.value;
987 undef->u.def.section = sym->u.def.section;
988 }
989 }
990 }
991 }
993 static bfd_boolean
994 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
995 {
996 if (pe_dll_extra_pe_debug)
997 printf ("+%s\n", h->string);
999 return TRUE;
1000 }
1001 #endif /* DLL_SUPPORT */
1004 static void
1005 gld_${EMULATION_NAME}_after_open (void)
1006 {
1007 #ifdef DLL_SUPPORT
1008 if (pe_dll_extra_pe_debug)
1009 {
1010 bfd *a;
1011 struct bfd_link_hash_entry *sym;
1013 printf ("%s()\n", __FUNCTION__);
1015 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1016 printf ("-%s\n", sym->root.string);
1017 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1019 for (a = link_info.input_bfds; a; a = a->link_next)
1020 printf ("*%s\n",a->filename);
1021 }
1022 #endif
1024 /* Pass the wacky PE command line options into the output bfd.
1025 FIXME: This should be done via a function, rather than by
1026 including an internal BFD header. */
1028 if (coff_data (link_info.output_bfd) == NULL
1029 || coff_data (link_info.output_bfd)->pe == 0)
1030 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"),
1031 link_info.output_bfd);
1033 pe_data (link_info.output_bfd)->pe_opthdr = pe;
1034 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1035 pe_data (link_info.output_bfd)->real_flags |= real_flags;
1037 #ifdef DLL_SUPPORT
1038 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
1039 pe_fixup_stdcalls ();
1041 pe_process_import_defs (link_info.output_bfd, &link_info);
1043 pe_find_data_imports ();
1045 #if defined (TARGET_IS_i386pe) \
1046 || defined (TARGET_IS_armpe) \
1047 || defined (TARGET_IS_arm_epoc_pe) \
1048 || defined (TARGET_IS_arm_wince_pe)
1049 if (!link_info.relocatable)
1050 pe_dll_build_sections (link_info.output_bfd, &link_info);
1051 else
1052 pe_exe_build_sections (link_info.output_bfd, &link_info);
1053 #else
1054 if (link_info.shared)
1055 pe_dll_build_sections (link_info.output_bfd, &link_info);
1056 #endif
1057 #endif /* DLL_SUPPORT */
1059 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1060 if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
1061 {
1062 /* The arm backend needs special fields in the output hash structure.
1063 These will only be created if the output format is an arm format,
1064 hence we do not support linking and changing output formats at the
1065 same time. Use a link followed by objcopy to change output formats. */
1066 einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
1067 return;
1068 }
1069 {
1070 /* Find a BFD that can hold the interworking stubs. */
1071 LANG_FOR_EACH_INPUT_STATEMENT (is)
1072 {
1073 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
1074 break;
1075 }
1076 }
1077 #endif
1079 {
1080 /* This next chunk of code tries to detect the case where you have
1081 two import libraries for the same DLL (specifically,
1082 symbolically linking libm.a and libc.a in cygwin to
1083 libcygwin.a). In those cases, it's possible for function
1084 thunks from the second implib to be used but without the
1085 head/tail objects, causing an improper import table. We detect
1086 those cases and rename the "other" import libraries to match
1087 the one the head/tail come from, so that the linker will sort
1088 things nicely and produce a valid import table. */
1090 LANG_FOR_EACH_INPUT_STATEMENT (is)
1091 {
1092 if (is->the_bfd->my_archive)
1093 {
1094 int idata2 = 0, reloc_count=0, is_imp = 0;
1095 asection *sec;
1097 /* See if this is an import library thunk. */
1098 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1099 {
1100 if (strcmp (sec->name, ".idata\$2") == 0)
1101 idata2 = 1;
1102 if (CONST_STRNEQ (sec->name, ".idata\$"))
1103 is_imp = 1;
1104 reloc_count += sec->reloc_count;
1105 }
1107 if (is_imp && !idata2 && reloc_count)
1108 {
1109 /* It is, look for the reference to head and see if it's
1110 from our own library. */
1111 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1112 {
1113 int i;
1114 long relsize;
1115 asymbol **symbols;
1116 arelent **relocs;
1117 int nrelocs;
1119 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1120 if (relsize < 1)
1121 break;
1123 if (!bfd_generic_link_read_symbols (is->the_bfd))
1124 {
1125 einfo (_("%B%F: could not read symbols: %E\n"),
1126 is->the_bfd);
1127 return;
1128 }
1129 symbols = bfd_get_outsymbols (is->the_bfd);
1131 relocs = (arelent **) xmalloc ((size_t) relsize);
1132 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1133 relocs, symbols);
1134 if (nrelocs < 0)
1135 {
1136 free (relocs);
1137 einfo ("%X%P: unable to process relocs: %E\n");
1138 return;
1139 }
1141 for (i = 0; i < nrelocs; i++)
1142 {
1143 struct bfd_symbol *s;
1144 struct bfd_link_hash_entry * blhe;
1145 char *other_bfd_filename;
1146 char *n;
1148 s = (relocs[i]->sym_ptr_ptr)[0];
1150 if (s->flags & BSF_LOCAL)
1151 continue;
1153 /* Thunk section with reloc to another bfd. */
1154 blhe = bfd_link_hash_lookup (link_info.hash,
1155 s->name,
1156 FALSE, FALSE, TRUE);
1158 if (blhe == NULL
1159 || blhe->type != bfd_link_hash_defined)
1160 continue;
1162 other_bfd_filename
1163 = blhe->u.def.section->owner->my_archive
1164 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1165 : bfd_get_filename (blhe->u.def.section->owner);
1167 if (strcmp (bfd_get_filename (is->the_bfd->my_archive),
1168 other_bfd_filename) == 0)
1169 continue;
1171 /* Rename this implib to match the other one. */
1172 n = xmalloc (strlen (other_bfd_filename) + 1);
1173 strcpy (n, other_bfd_filename);
1174 is->the_bfd->my_archive->filename = n;
1175 }
1177 free (relocs);
1178 /* Note - we do not free the symbols,
1179 they are now cached in the BFD. */
1180 }
1181 }
1182 }
1183 }
1184 }
1186 {
1187 int is_ms_arch = 0;
1188 bfd *cur_arch = 0;
1189 lang_input_statement_type *is2;
1190 lang_input_statement_type *is3;
1192 /* Careful - this is a shell script. Watch those dollar signs! */
1193 /* Microsoft import libraries have every member named the same,
1194 and not in the right order for us to link them correctly. We
1195 must detect these and rename the members so that they'll link
1196 correctly. There are three types of objects: the head, the
1197 thunks, and the sentinel(s). The head is easy; it's the one
1198 with idata2. We assume that the sentinels won't have relocs,
1199 and the thunks will. It's easier than checking the symbol
1200 table for external references. */
1201 LANG_FOR_EACH_INPUT_STATEMENT (is)
1202 {
1203 if (is->the_bfd->my_archive)
1204 {
1205 char *pnt;
1206 bfd *arch = is->the_bfd->my_archive;
1208 if (cur_arch != arch)
1209 {
1210 cur_arch = arch;
1211 is_ms_arch = 1;
1213 for (is3 = is;
1214 is3 && is3->the_bfd->my_archive == arch;
1215 is3 = (lang_input_statement_type *) is3->next)
1216 {
1217 /* A MS dynamic import library can also contain static
1218 members, so look for the first element with a .dll
1219 extension, and use that for the remainder of the
1220 comparisons. */
1221 pnt = strrchr (is3->the_bfd->filename, '.');
1222 if (pnt != NULL && strcmp (pnt, ".dll") == 0)
1223 break;
1224 }
1226 if (is3 == NULL)
1227 is_ms_arch = 0;
1228 else
1229 {
1230 /* OK, found one. Now look to see if the remaining
1231 (dynamic import) members use the same name. */
1232 for (is2 = is;
1233 is2 && is2->the_bfd->my_archive == arch;
1234 is2 = (lang_input_statement_type *) is2->next)
1235 {
1236 /* Skip static members, ie anything with a .obj
1237 extension. */
1238 pnt = strrchr (is2->the_bfd->filename, '.');
1239 if (pnt != NULL && strcmp (pnt, ".obj") == 0)
1240 continue;
1242 if (strcmp (is3->the_bfd->filename,
1243 is2->the_bfd->filename))
1244 {
1245 is_ms_arch = 0;
1246 break;
1247 }
1248 }
1249 }
1250 }
1252 /* This fragment might have come from an .obj file in a Microsoft
1253 import, and not an actual import record. If this is the case,
1254 then leave the filename alone. */
1255 pnt = strrchr (is->the_bfd->filename, '.');
1257 if (is_ms_arch && (strcmp (pnt, ".dll") == 0))
1258 {
1259 int idata2 = 0, reloc_count=0;
1260 asection *sec;
1261 char *new_name, seq;
1263 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1264 {
1265 if (strcmp (sec->name, ".idata\$2") == 0)
1266 idata2 = 1;
1267 reloc_count += sec->reloc_count;
1268 }
1270 if (idata2) /* .idata2 is the TOC */
1271 seq = 'a';
1272 else if (reloc_count > 0) /* thunks */
1273 seq = 'b';
1274 else /* sentinel */
1275 seq = 'c';
1277 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1278 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1279 is->the_bfd->filename = new_name;
1281 new_name = xmalloc (strlen (is->filename) + 3);
1282 sprintf (new_name, "%s.%c", is->filename, seq);
1283 is->filename = new_name;
1284 }
1285 }
1286 }
1287 }
1289 {
1290 /* The following chunk of code tries to identify jump stubs in
1291 import libraries which are dead code and eliminates them
1292 from the final link. For each exported symbol <sym>, there
1293 is a object file in the import library with a .text section
1294 and several .idata$* sections. The .text section contains the
1295 symbol definition for <sym> which is a jump stub of the form
1296 jmp *__imp_<sym>. The .idata$5 contains the symbol definition
1297 for __imp_<sym> which is the address of the slot for <sym> in
1298 the import address table. When a symbol is imported explicitly
1299 using __declspec(dllimport) declaration, the compiler generates
1300 a reference to __imp_<sym> which directly resolves to the
1301 symbol in .idata$5, in which case the jump stub code is not
1302 needed. The following code tries to identify jump stub sections
1303 in import libraries which are not referred to by anyone and
1304 marks them for exclusion from the final link. */
1305 LANG_FOR_EACH_INPUT_STATEMENT (is)
1306 {
1307 if (is->the_bfd->my_archive)
1308 {
1309 int is_imp = 0;
1310 asection *sec, *stub_sec = NULL;
1312 /* See if this is an import library thunk. */
1313 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1314 {
1315 if (strncmp (sec->name, ".idata\$", 7) == 0)
1316 is_imp = 1;
1317 /* The section containing the jmp stub has code
1318 and has a reloc. */
1319 if ((sec->flags & SEC_CODE) && sec->reloc_count)
1320 stub_sec = sec;
1321 }
1323 if (is_imp && stub_sec)
1324 {
1325 asymbol **symbols;
1326 long nsyms, src_count;
1327 struct bfd_link_hash_entry * blhe;
1329 if (!bfd_generic_link_read_symbols (is->the_bfd))
1330 {
1331 einfo (_("%B%F: could not read symbols: %E\n"),
1332 is->the_bfd);
1333 return;
1334 }
1335 symbols = bfd_get_outsymbols (is->the_bfd);
1336 nsyms = bfd_get_symcount (is->the_bfd);
1338 for (src_count = 0; src_count < nsyms; src_count++)
1339 {
1340 if (symbols[src_count]->section->id == stub_sec->id)
1341 {
1342 /* This symbol belongs to the section containing
1343 the stub. */
1344 blhe = bfd_link_hash_lookup (link_info.hash,
1345 symbols[src_count]->name,
1346 FALSE, FALSE, TRUE);
1347 /* If the symbol in the stub section has no other
1348 undefined references, exclude the stub section
1349 from the final link. */
1350 if (blhe && (blhe->type == bfd_link_hash_defined)
1351 && (blhe->u.undef.next == NULL))
1352 stub_sec->flags |= SEC_EXCLUDE;
1353 }
1354 }
1355 }
1356 }
1357 }
1358 }
1359 }
1360 \f
1361 static void
1362 gld_${EMULATION_NAME}_before_allocation (void)
1363 {
1364 #ifdef TARGET_IS_ppcpe
1365 /* Here we rummage through the found bfds to collect toc information. */
1366 {
1367 LANG_FOR_EACH_INPUT_STATEMENT (is)
1368 {
1369 if (!ppc_process_before_allocation (is->the_bfd, &link_info))
1370 {
1371 /* xgettext:c-format */
1372 einfo (_("Errors encountered processing file %s\n"), is->filename);
1373 }
1374 }
1375 }
1377 /* We have seen it all. Allocate it, and carry on. */
1378 ppc_allocate_toc_section (&link_info);
1379 #endif /* TARGET_IS_ppcpe */
1381 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1382 /* FIXME: we should be able to set the size of the interworking stub
1383 section.
1385 Here we rummage through the found bfds to collect glue
1386 information. FIXME: should this be based on a command line
1387 option? krk@cygnus.com. */
1388 {
1389 LANG_FOR_EACH_INPUT_STATEMENT (is)
1390 {
1391 if (! bfd_arm_process_before_allocation
1392 (is->the_bfd, & link_info, support_old_code))
1393 {
1394 /* xgettext:c-format */
1395 einfo (_("Errors encountered processing file %s for interworking\n"),
1396 is->filename);
1397 }
1398 }
1399 }
1401 /* We have seen it all. Allocate it, and carry on. */
1402 bfd_arm_allocate_interworking_sections (& link_info);
1403 #endif /* TARGET_IS_armpe || TARGET_IS_arm_epoc_pe || TARGET_IS_arm_wince_pe */
1405 before_allocation_default ();
1406 }
1407 \f
1408 #ifdef DLL_SUPPORT
1409 /* This is called when an input file isn't recognized as a BFD. We
1410 check here for .DEF files and pull them in automatically. */
1412 static int
1413 saw_option (char *option)
1414 {
1415 int i;
1417 for (i = 0; init[i].ptr; i++)
1418 if (strcmp (init[i].symbol, option) == 0)
1419 return init[i].inited;
1420 return 0;
1421 }
1422 #endif /* DLL_SUPPORT */
1424 static bfd_boolean
1425 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1426 {
1427 #ifdef DLL_SUPPORT
1428 const char *ext = entry->filename + strlen (entry->filename) - 4;
1430 if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0)
1431 {
1432 pe_def_file = def_file_parse (entry->filename, pe_def_file);
1434 if (pe_def_file)
1435 {
1436 int i, buflen=0, len;
1437 char *buf;
1439 for (i = 0; i < pe_def_file->num_exports; i++)
1440 {
1441 len = strlen (pe_def_file->exports[i].internal_name);
1442 if (buflen < len + 2)
1443 buflen = len + 2;
1444 }
1446 buf = (char *) xmalloc (buflen);
1448 for (i = 0; i < pe_def_file->num_exports; i++)
1449 {
1450 struct bfd_link_hash_entry *h;
1452 sprintf (buf, "%s%s", U (""), pe_def_file->exports[i].internal_name);
1454 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1455 if (h == (struct bfd_link_hash_entry *) NULL)
1456 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1457 if (h->type == bfd_link_hash_new)
1458 {
1459 h->type = bfd_link_hash_undefined;
1460 h->u.undef.abfd = NULL;
1461 bfd_link_add_undef (link_info.hash, h);
1462 }
1463 }
1464 free (buf);
1466 /* def_file_print (stdout, pe_def_file); */
1467 if (pe_def_file->is_dll == 1)
1468 link_info.shared = 1;
1470 if (pe_def_file->base_address != (bfd_vma)(-1))
1471 {
1472 pe.ImageBase
1473 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1474 = init[IMAGEBASEOFF].value
1475 = pe_def_file->base_address;
1476 init[IMAGEBASEOFF].inited = 1;
1477 if (image_base_statement)
1478 image_base_statement->exp = exp_assop ('=', "__image_base__",
1479 exp_intop (pe.ImageBase));
1480 }
1482 if (pe_def_file->stack_reserve != -1
1483 && ! saw_option ("__size_of_stack_reserve__"))
1484 {
1485 pe.SizeOfStackReserve = pe_def_file->stack_reserve;
1486 if (pe_def_file->stack_commit != -1)
1487 pe.SizeOfStackCommit = pe_def_file->stack_commit;
1488 }
1489 if (pe_def_file->heap_reserve != -1
1490 && ! saw_option ("__size_of_heap_reserve__"))
1491 {
1492 pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
1493 if (pe_def_file->heap_commit != -1)
1494 pe.SizeOfHeapCommit = pe_def_file->heap_commit;
1495 }
1496 return TRUE;
1497 }
1498 }
1499 #endif
1500 return FALSE;
1501 }
1503 static bfd_boolean
1504 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1505 {
1506 #ifdef DLL_SUPPORT
1507 #ifdef TARGET_IS_i386pe
1508 pe_dll_id_target ("pei-i386");
1509 #endif
1510 #ifdef TARGET_IS_shpe
1511 pe_dll_id_target ("pei-shl");
1512 #endif
1513 #ifdef TARGET_IS_mipspe
1514 pe_dll_id_target ("pei-mips");
1515 #endif
1516 #ifdef TARGET_IS_armpe
1517 pe_dll_id_target ("pei-arm-little");
1518 #endif
1519 #ifdef TARGET_IS_arm_epoc_pe
1520 pe_dll_id_target ("epoc-pei-arm-little");
1521 #endif
1522 #ifdef TARGET_IS_arm_wince_pe
1523 pe_dll_id_target ("pei-arm-wince-little");
1524 #endif
1525 if (pe_bfd_is_dll (entry->the_bfd))
1526 return pe_implied_import_dll (entry->filename);
1527 #endif
1528 return FALSE;
1529 }
1531 static void
1532 gld_${EMULATION_NAME}_finish (void)
1533 {
1534 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1535 struct bfd_link_hash_entry * h;
1537 if (thumb_entry_symbol != NULL)
1538 {
1539 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
1540 FALSE, FALSE, TRUE);
1542 if (h != (struct bfd_link_hash_entry *) NULL
1543 && (h->type == bfd_link_hash_defined
1544 || h->type == bfd_link_hash_defweak)
1545 && h->u.def.section->output_section != NULL)
1546 {
1547 static char buffer[32];
1548 bfd_vma val;
1550 /* Special procesing is required for a Thumb entry symbol. The
1551 bottom bit of its address must be set. */
1552 val = (h->u.def.value
1553 + bfd_get_section_vma (link_info.output_bfd,
1554 h->u.def.section->output_section)
1555 + h->u.def.section->output_offset);
1557 val |= 1;
1559 /* Now convert this value into a string and store it in entry_symbol
1560 where the lang_finish() function will pick it up. */
1561 buffer[0] = '0';
1562 buffer[1] = 'x';
1564 sprintf_vma (buffer + 2, val);
1566 if (entry_symbol.name != NULL && entry_from_cmdline)
1567 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
1568 thumb_entry_symbol, entry_symbol.name);
1569 entry_symbol.name = buffer;
1570 }
1571 else
1572 einfo (_("%P: warning: cannot find thumb start symbol %s\n"), thumb_entry_symbol);
1573 }
1574 #endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) */
1576 finish_default ();
1578 #ifdef DLL_SUPPORT
1579 if (link_info.shared
1580 #if !defined(TARGET_IS_shpe) && !defined(TARGET_IS_mipspe)
1581 || (!link_info.relocatable && pe_def_file->num_exports != 0)
1582 #endif
1583 )
1584 {
1585 pe_dll_fill_sections (link_info.output_bfd, &link_info);
1586 if (pe_implib_filename)
1587 pe_dll_generate_implib (pe_def_file, pe_implib_filename);
1588 }
1589 #if defined(TARGET_IS_shpe) || defined(TARGET_IS_mipspe)
1590 /* ARM doesn't need relocs. */
1591 else
1592 {
1593 pe_exe_fill_sections (link_info.output_bfd, &link_info);
1594 }
1595 #endif
1597 if (pe_out_def_filename)
1598 pe_dll_generate_def_file (pe_out_def_filename);
1599 #endif /* DLL_SUPPORT */
1601 /* I don't know where .idata gets set as code, but it shouldn't be. */
1602 {
1603 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
1605 if (asec)
1606 {
1607 asec->flags &= ~SEC_CODE;
1608 asec->flags |= SEC_DATA;
1609 }
1610 }
1611 }
1613 \f
1614 /* Place an orphan section.
1616 We use this to put sections in a reasonable place in the file, and
1617 to ensure that they are aligned as required.
1619 We handle grouped sections here as well. A section named .foo$nn
1620 goes into the output section .foo. All grouped sections are sorted
1621 by name.
1623 Grouped sections for the default sections are handled by the
1624 default linker script using wildcards, and are sorted by
1625 sort_sections. */
1627 static lang_output_section_statement_type *
1628 gld_${EMULATION_NAME}_place_orphan (asection *s,
1629 const char *secname,
1630 int constraint)
1631 {
1632 const char *orig_secname = secname;
1633 char *dollar = NULL;
1634 lang_output_section_statement_type *os;
1635 lang_statement_list_type add_child;
1637 /* Look through the script to see where to place this section. */
1638 if (!link_info.relocatable
1639 && (dollar = strchr (secname, '$')) != NULL)
1640 {
1641 size_t len = dollar - secname;
1642 char *newname = xmalloc (len + 1);
1643 memcpy (newname, secname, len);
1644 newname[len] = '\0';
1645 secname = newname;
1646 }
1648 lang_list_init (&add_child);
1650 if (constraint == 0
1651 && (os = lang_output_section_find (secname)) != NULL
1652 && os->bfd_section != NULL
1653 && (os->bfd_section->flags == 0
1654 || ((s->flags ^ os->bfd_section->flags)
1655 & (SEC_LOAD | SEC_ALLOC)) == 0))
1656 {
1657 /* We already have an output section statement with this
1658 name, and its bfd section has compatible flags.
1659 If the section already exists but does not have any flags set,
1660 then it has been created by the linker, probably as a result of
1661 a --section-start command line switch. */
1662 lang_add_section (&add_child, s, os);
1663 }
1664 else
1665 {
1666 static struct orphan_save hold[] =
1667 {
1668 { ".text",
1669 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1670 0, 0, 0, 0 },
1671 { ".rdata",
1672 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1673 0, 0, 0, 0 },
1674 { ".data",
1675 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1676 0, 0, 0, 0 },
1677 { ".bss",
1678 SEC_ALLOC,
1679 0, 0, 0, 0 }
1680 };
1681 enum orphan_save_index
1682 {
1683 orphan_text = 0,
1684 orphan_rodata,
1685 orphan_data,
1686 orphan_bss
1687 };
1688 static int orphan_init_done = 0;
1689 struct orphan_save *place;
1690 lang_output_section_statement_type *after;
1691 etree_type *address;
1693 if (!orphan_init_done)
1694 {
1695 struct orphan_save *ho;
1696 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1697 if (ho->name != NULL)
1698 {
1699 ho->os = lang_output_section_find (ho->name);
1700 if (ho->os != NULL && ho->os->flags == 0)
1701 ho->os->flags = ho->flags;
1702 }
1703 orphan_init_done = 1;
1704 }
1706 /* Try to put the new output section in a reasonable place based
1707 on the section name and section flags. */
1709 place = NULL;
1710 if ((s->flags & SEC_ALLOC) == 0)
1711 ;
1712 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
1713 place = &hold[orphan_bss];
1714 else if ((s->flags & SEC_READONLY) == 0)
1715 place = &hold[orphan_data];
1716 else if ((s->flags & SEC_CODE) == 0)
1717 place = &hold[orphan_rodata];
1718 else
1719 place = &hold[orphan_text];
1721 after = NULL;
1722 if (place != NULL)
1723 {
1724 if (place->os == NULL)
1725 place->os = lang_output_section_find (place->name);
1726 after = place->os;
1727 if (after == NULL)
1728 after = lang_output_section_find_by_flags (s, &place->os, NULL);
1729 if (after == NULL)
1730 /* *ABS* is always the first output section statement. */
1731 after = (&lang_output_section_statement.head
1732 ->output_section_statement);
1733 }
1735 /* All sections in an executable must be aligned to a page boundary. */
1736 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
1737 os = lang_insert_orphan (s, secname, constraint, after, place, address,
1738 &add_child);
1739 }
1741 {
1742 lang_statement_union_type **pl = &os->children.head;
1744 if (dollar != NULL)
1745 {
1746 bfd_boolean found_dollar;
1748 /* The section name has a '$'. Sort it with the other '$'
1749 sections. */
1750 found_dollar = FALSE;
1751 for ( ; *pl != NULL; pl = &(*pl)->header.next)
1752 {
1753 lang_input_section_type *ls;
1754 const char *lname;
1756 if ((*pl)->header.type != lang_input_section_enum)
1757 continue;
1759 ls = &(*pl)->input_section;
1761 lname = bfd_get_section_name (ls->section->owner, ls->section);
1762 if (strchr (lname, '$') == NULL)
1763 {
1764 if (found_dollar)
1765 break;
1766 }
1767 else
1768 {
1769 found_dollar = TRUE;
1770 if (strcmp (orig_secname, lname) < 0)
1771 break;
1772 }
1773 }
1774 }
1776 if (add_child.head != NULL)
1777 {
1778 add_child.head->header.next = *pl;
1779 *pl = add_child.head;
1780 }
1781 }
1783 return os;
1784 }
1786 static bfd_boolean
1787 gld_${EMULATION_NAME}_open_dynamic_archive
1788 (const char *arch ATTRIBUTE_UNUSED, search_dirs_type *search,
1789 lang_input_statement_type *entry)
1790 {
1791 static const struct
1792 {
1793 const char * format;
1794 bfd_boolean use_prefix;
1795 }
1796 libname_fmt [] =
1797 {
1798 /* Preferred explicit import library for dll's. */
1799 { "lib%s.dll.a", FALSE },
1800 /* Alternate explicit import library for dll's. */
1801 { "%s.dll.a", FALSE },
1802 /* "libfoo.a" could be either an import lib or a static lib.
1803 For backwards compatibility, libfoo.a needs to precede
1804 libfoo.dll and foo.dll in the search. */
1805 { "lib%s.a", FALSE },
1806 /* The 'native' spelling of an import lib name is "foo.lib". */
1807 { "%s.lib", FALSE },
1808 #ifdef DLL_SUPPORT
1809 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
1810 { "%s%s.dll", TRUE },
1811 #endif
1812 /* Try "libfoo.dll" (default preferred dll name). */
1813 { "lib%s.dll", FALSE },
1814 /* Finally try 'native' dll name "foo.dll". */
1815 { "%s.dll", FALSE },
1816 /* Note: If adding more formats to this table, make sure to check to
1817 see if their length is longer than libname_fmt[0].format, and if
1818 so, update the call to xmalloc() below. */
1819 { NULL, FALSE }
1820 };
1821 static unsigned int format_max_len = 0;
1822 const char * filename;
1823 char * full_string;
1824 char * base_string;
1825 unsigned int i;
1828 if (! entry->is_archive)
1829 return FALSE;
1831 filename = entry->filename;
1833 if (format_max_len == 0)
1834 /* We need to allow space in the memory that we are going to allocate
1835 for the characters in the format string. Since the format array is
1836 static we only need to calculate this information once. In theory
1837 this value could also be computed statically, but this introduces
1838 the possibility for a discrepancy and hence a possible memory
1839 corruption. The lengths we compute here will be too long because
1840 they will include any formating characters (%s) in the strings, but
1841 this will not matter. */
1842 for (i = 0; libname_fmt[i].format; i++)
1843 if (format_max_len < strlen (libname_fmt[i].format))
1844 format_max_len = strlen (libname_fmt[i].format);
1846 full_string = xmalloc (strlen (search->name)
1847 + strlen (filename)
1848 + format_max_len
1849 #ifdef DLL_SUPPORT
1850 + (pe_dll_search_prefix
1851 ? strlen (pe_dll_search_prefix) : 0)
1852 #endif
1853 /* Allow for the terminating NUL and for the path
1854 separator character that is inserted between
1855 search->name and the start of the format string. */
1856 + 2);
1858 sprintf (full_string, "%s/", search->name);
1859 base_string = full_string + strlen (full_string);
1861 for (i = 0; libname_fmt[i].format; i++)
1862 {
1863 #ifdef DLL_SUPPORT
1864 if (libname_fmt[i].use_prefix)
1865 {
1866 if (!pe_dll_search_prefix)
1867 continue;
1868 sprintf (base_string, libname_fmt[i].format, pe_dll_search_prefix, filename);
1869 }
1870 else
1871 #endif
1872 sprintf (base_string, libname_fmt[i].format, filename);
1874 if (ldfile_try_open_bfd (full_string, entry))
1875 break;
1876 }
1878 if (!libname_fmt[i].format)
1879 {
1880 free (full_string);
1881 return FALSE;
1882 }
1884 entry->filename = full_string;
1886 return TRUE;
1887 }
1889 static int
1890 gld_${EMULATION_NAME}_find_potential_libraries
1891 (char *name, lang_input_statement_type *entry)
1892 {
1893 return ldfile_open_file_search (name, entry, "", ".lib");
1894 }
1895 \f
1896 static char *
1897 gld_${EMULATION_NAME}_get_script (int *isfile)
1898 EOF
1899 # Scripts compiled in.
1900 # sed commands to quote an ld script as a C string.
1901 sc="-f stringify.sed"
1903 fragment <<EOF
1904 {
1905 *isfile = 0;
1907 if (link_info.relocatable && config.build_constructors)
1908 return
1909 EOF
1910 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1911 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
1912 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1913 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1914 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1915 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1916 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1917 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
1918 echo ' ; else if (link_info.pei386_auto_import == 1) return' >> e${EMULATION_NAME}.c
1919 sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
1920 fi
1921 echo ' ; else return' >> e${EMULATION_NAME}.c
1922 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1923 echo '; }' >> e${EMULATION_NAME}.c
1925 fragment <<EOF
1928 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1929 {
1930 gld_${EMULATION_NAME}_before_parse,
1931 syslib_default,
1932 hll_default,
1933 gld_${EMULATION_NAME}_after_parse,
1934 gld_${EMULATION_NAME}_after_open,
1935 after_allocation_default,
1936 set_output_arch_default,
1937 ldemul_default_target,
1938 gld_${EMULATION_NAME}_before_allocation,
1939 gld_${EMULATION_NAME}_get_script,
1940 "${EMULATION_NAME}",
1941 "${OUTPUT_FORMAT}",
1942 gld_${EMULATION_NAME}_finish,
1943 NULL, /* Create output section statements. */
1944 gld_${EMULATION_NAME}_open_dynamic_archive,
1945 gld_${EMULATION_NAME}_place_orphan,
1946 gld_${EMULATION_NAME}_set_symbols,
1947 NULL, /* parse_args */
1948 gld${EMULATION_NAME}_add_options,
1949 gld${EMULATION_NAME}_handle_option,
1950 gld_${EMULATION_NAME}_unrecognized_file,
1951 gld_${EMULATION_NAME}_list_options,
1952 gld_${EMULATION_NAME}_recognized_file,
1953 gld_${EMULATION_NAME}_find_potential_libraries,
1954 NULL /* new_vers_pattern. */
1955 };
1956 EOF