| blob | ae4356f559f16dad004bfe3dd4d4f96e686d43ca |
1 # This shell script emits a C file. -*- C -*-
2 # It does some substitutions.
3 test -z "${ENTRY}" && ENTRY="_mainCRTStartup"
4 if [ -z "$MACHINE" ]; then
5 OUTPUT_ARCH=${ARCH}
6 else
7 OUTPUT_ARCH=${ARCH}:${MACHINE}
8 fi
9 rm -f e${EMULATION_NAME}.c
10 (echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
11 cat >>e${EMULATION_NAME}.c <<EOF
12 /* This file is part of GLD, the Gnu Linker.
13 Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
14 2005, 2006, 2007 Free Software Foundation, Inc.
16 This program is free software; you can redistribute it and/or modify
17 it under the terms of the GNU General Public License as published by
18 the Free Software Foundation; either version 2 of the License, or
19 (at your option) any later version.
21 This program is distributed in the hope that it will be useful,
22 but WITHOUT ANY WARRANTY; without even the implied warranty of
23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 GNU General Public License for more details.
26 You should have received a copy of the GNU General Public License
27 along with this program; if not, write to the Free Software
28 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
30 /* For WINDOWS_NT */
31 /* The original file generated returned different default scripts depending
32 on whether certain switches were set, but these switches pertain to the
33 Linux system and that particular version of coff. In the NT case, we
34 only determine if the subsystem is console or windows in order to select
35 the correct entry point by default. */
37 #define TARGET_IS_${EMULATION_NAME}
39 /* Do this before including bfd.h, so we prototype the right functions. */
41 #if defined(TARGET_IS_armpe) \
42 || defined(TARGET_IS_arm_epoc_pe) \
43 || defined(TARGET_IS_arm_wince_pe)
44 #define bfd_arm_allocate_interworking_sections \
45 bfd_${EMULATION_NAME}_allocate_interworking_sections
46 #define bfd_arm_get_bfd_for_interworking \
47 bfd_${EMULATION_NAME}_get_bfd_for_interworking
48 #define bfd_arm_process_before_allocation \
49 bfd_${EMULATION_NAME}_process_before_allocation
50 #endif
52 #include "bfd.h"
53 #include "sysdep.h"
54 #include "bfdlink.h"
55 #include "getopt.h"
56 #include "libiberty.h"
57 #include "ld.h"
58 #include "ldmain.h"
59 #include "ldexp.h"
60 #include "ldlang.h"
61 #include "ldfile.h"
62 #include "ldemul.h"
63 #include <ldgram.h>
64 #include "ldlex.h"
65 #include "ldmisc.h"
66 #include "ldctor.h"
67 #include "coff/internal.h"
69 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
70 header in generic PE code. */
71 #include "coff/i386.h"
72 #include "coff/pe.h"
74 /* FIXME: This is a BFD internal header file, and we should not be
75 using it here. */
76 #include "../bfd/libcoff.h"
78 #include "deffile.h"
79 #include "pe-dll.h"
80 #include "safe-ctype.h"
82 /* Permit the emulation parameters to override the default section
83 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
84 it seem that include/coff/internal.h should not define
85 PE_DEF_SECTION_ALIGNMENT. */
86 #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
87 #undef PE_DEF_SECTION_ALIGNMENT
88 #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
89 #endif
91 #if defined(TARGET_IS_i386pe) \
92 || defined(TARGET_IS_shpe) \
93 || defined(TARGET_IS_mipspe) \
94 || defined(TARGET_IS_armpe) \
95 || defined(TARGET_IS_arm_epoc_pe) \
96 || defined(TARGET_IS_arm_wince_pe)
97 #define DLL_SUPPORT
98 #endif
100 #if defined(TARGET_IS_i386pe) || ! defined(DLL_SUPPORT)
101 #define PE_DEF_SUBSYSTEM 3
102 #else
103 #undef NT_EXE_IMAGE_BASE
104 #undef PE_DEF_SECTION_ALIGNMENT
105 #undef PE_DEF_FILE_ALIGNMENT
106 #define NT_EXE_IMAGE_BASE 0x00010000
108 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
109 #define PE_DEF_SECTION_ALIGNMENT 0x00001000
110 #define PE_DEF_SUBSYSTEM 9
111 #else
112 #define PE_DEF_SECTION_ALIGNMENT 0x00000400
113 #define PE_DEF_SUBSYSTEM 2
114 #endif
115 #define PE_DEF_FILE_ALIGNMENT 0x00000200
116 #endif
118 #define U(S) ${INITIAL_SYMBOL_CHAR} S
120 static struct internal_extra_pe_aouthdr pe;
121 static int dll;
122 static flagword real_flags = 0;
123 static int support_old_code = 0;
124 static char * thumb_entry_symbol = NULL;
125 static lang_assignment_statement_type *image_base_statement = 0;
127 #ifdef DLL_SUPPORT
128 static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */
129 static char *pe_out_def_filename = NULL;
130 static char *pe_implib_filename = NULL;
131 static int pe_enable_auto_image_base = 0;
132 static char *pe_dll_search_prefix = NULL;
133 #endif
135 extern const char *output_filename;
137 static void
138 gld_${EMULATION_NAME}_before_parse (void)
139 {
140 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
141 output_filename = "${EXECUTABLE_NAME:-a.exe}";
142 #ifdef DLL_SUPPORT
143 config.dynamic_link = TRUE;
144 config.has_shared = 1;
145 link_info.pei386_auto_import = -1;
146 link_info.pei386_runtime_pseudo_reloc = -1;
148 #if (PE_DEF_SUBSYSTEM == 9) || (PE_DEF_SUBSYSTEM == 2)
149 #if defined TARGET_IS_mipspe || defined TARGET_IS_armpe || defined TARGET_IS_arm_wince_pe
150 lang_default_entry ("WinMainCRTStartup");
151 #else
152 lang_default_entry ("_WinMainCRTStartup");
153 #endif
154 #else
155 lang_default_entry ("${ENTRY}");
156 #endif
157 #endif
158 }
159 \f
160 /* PE format extra command line options. */
162 /* Used for setting flags in the PE header. */
163 #define OPTION_BASE_FILE (300 + 1)
164 #define OPTION_DLL (OPTION_BASE_FILE + 1)
165 #define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1)
166 #define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1)
167 #define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1)
168 #define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1)
169 #define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1)
170 #define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
171 #define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1)
172 #define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1)
173 #define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
174 #define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1)
175 #define OPTION_SUBSYSTEM (OPTION_STACK + 1)
176 #define OPTION_HEAP (OPTION_SUBSYSTEM + 1)
177 #define OPTION_SUPPORT_OLD_CODE (OPTION_HEAP + 1)
178 #define OPTION_OUT_DEF (OPTION_SUPPORT_OLD_CODE + 1)
179 #define OPTION_EXPORT_ALL (OPTION_OUT_DEF + 1)
180 #define OPTION_EXCLUDE_SYMBOLS (OPTION_EXPORT_ALL + 1)
181 #define OPTION_KILL_ATS (OPTION_EXCLUDE_SYMBOLS + 1)
182 #define OPTION_STDCALL_ALIASES (OPTION_KILL_ATS + 1)
183 #define OPTION_ENABLE_STDCALL_FIXUP (OPTION_STDCALL_ALIASES + 1)
184 #define OPTION_DISABLE_STDCALL_FIXUP (OPTION_ENABLE_STDCALL_FIXUP + 1)
185 #define OPTION_IMPLIB_FILENAME (OPTION_DISABLE_STDCALL_FIXUP + 1)
186 #define OPTION_THUMB_ENTRY (OPTION_IMPLIB_FILENAME + 1)
187 #define OPTION_WARN_DUPLICATE_EXPORTS (OPTION_THUMB_ENTRY + 1)
188 #define OPTION_IMP_COMPAT (OPTION_WARN_DUPLICATE_EXPORTS + 1)
189 #define OPTION_ENABLE_AUTO_IMAGE_BASE (OPTION_IMP_COMPAT + 1)
190 #define OPTION_DISABLE_AUTO_IMAGE_BASE (OPTION_ENABLE_AUTO_IMAGE_BASE + 1)
191 #define OPTION_DLL_SEARCH_PREFIX (OPTION_DISABLE_AUTO_IMAGE_BASE + 1)
192 #define OPTION_NO_DEFAULT_EXCLUDES (OPTION_DLL_SEARCH_PREFIX + 1)
193 #define OPTION_DLL_ENABLE_AUTO_IMPORT (OPTION_NO_DEFAULT_EXCLUDES + 1)
194 #define OPTION_DLL_DISABLE_AUTO_IMPORT (OPTION_DLL_ENABLE_AUTO_IMPORT + 1)
195 #define OPTION_ENABLE_EXTRA_PE_DEBUG (OPTION_DLL_DISABLE_AUTO_IMPORT + 1)
196 #define OPTION_EXCLUDE_LIBS (OPTION_ENABLE_EXTRA_PE_DEBUG + 1)
197 #define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC \
198 (OPTION_EXCLUDE_LIBS + 1)
199 #define OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC \
200 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC + 1)
201 #define OPTION_LARGE_ADDRESS_AWARE \
202 (OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC + 1)
204 static void
205 gld${EMULATION_NAME}_add_options
206 (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
207 struct option **longopts, int nrl ATTRIBUTE_UNUSED,
208 struct option **really_longopts ATTRIBUTE_UNUSED)
209 {
210 static const struct option xtra_long[] = {
211 /* PE options */
212 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
213 {"dll", no_argument, NULL, OPTION_DLL},
214 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
215 {"heap", required_argument, NULL, OPTION_HEAP},
216 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
217 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
218 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
219 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
220 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
221 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
222 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
223 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
224 {"stack", required_argument, NULL, OPTION_STACK},
225 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
226 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
227 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
228 #ifdef DLL_SUPPORT
229 /* getopt allows abbreviations, so we do this to stop it from treating -o
230 as an abbreviation for this option */
231 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
232 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
233 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
234 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
235 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
236 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
237 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
238 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
239 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
240 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
241 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
242 /* getopt() allows abbreviations, so we do this to stop it from
243 treating -c as an abbreviation for these --compat-implib. */
244 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
245 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
246 {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
247 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
248 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
249 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
250 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
251 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
252 {"enable-extra-pe-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
253 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
254 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
255 #endif
256 {"large-address-aware", no_argument, NULL, OPTION_LARGE_ADDRESS_AWARE},
257 {NULL, no_argument, NULL, 0}
258 };
260 *longopts = (struct option *)
261 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
262 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
263 }
265 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
266 parameters which may be input from the command line. */
268 typedef struct
269 {
270 void *ptr;
271 int size;
272 int value;
273 char *symbol;
274 int inited;
275 } definfo;
277 #define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0}
279 static definfo init[] =
280 {
281 /* imagebase must be first */
282 #define IMAGEBASEOFF 0
283 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE),
284 #define DLLOFF 1
285 {&dll, sizeof(dll), 0, "__dll__", 0},
286 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
287 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
288 D(MajorOperatingSystemVersion,"__major_os_version__", 4),
289 D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
290 D(MajorImageVersion,"__major_image_version__", 1),
291 D(MinorImageVersion,"__minor_image_version__", 0),
292 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
293 D(MajorSubsystemVersion,"__major_subsystem_version__", 3),
294 #else
295 D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
296 #endif
297 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
298 D(Subsystem,"__subsystem__", ${SUBSYSTEM}),
299 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000),
300 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
301 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
302 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
303 D(LoaderFlags,"__loader_flags__", 0x0),
304 { NULL, 0, 0, NULL, 0 }
305 };
308 static void
309 gld_${EMULATION_NAME}_list_options (FILE *file)
310 {
311 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
312 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
313 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
314 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
315 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
316 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
317 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
318 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
319 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
320 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
321 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
322 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
323 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
324 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
325 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
326 fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n"));
327 #ifdef DLL_SUPPORT
328 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
329 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
330 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
331 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
332 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
333 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
334 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
335 fprintf (file, _(" --out-implib <file> Generate import library\n"));
336 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
337 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n"));
338 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
339 create __imp_<SYMBOL> as well.\n"));
340 fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\
341 unless user specifies one\n"));
342 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));
343 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\
344 an importlib, use <string><basename>.dll\n\
345 in preference to lib<basename>.dll \n"));
346 fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to\n\
347 __imp_sym for DATA references\n"));
348 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
349 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\
350 adding pseudo-relocations resolved at\n\
351 runtime.\n"));
352 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\
353 auto-imported DATA.\n"));
354 fprintf (file, _(" --enable-extra-pe-debug Enable verbose debug output when building\n\
355 or linking to DLLs (esp. auto-import)\n"));
356 #endif
357 fprintf (file, _(" --large-address-aware Executable supports virtual addresses\n\
358 greater than 2 gigabytes\n"));
359 }
362 static void
363 set_pe_name (char *name, long val)
364 {
365 int i;
367 /* Find the name and set it. */
368 for (i = 0; init[i].ptr; i++)
369 {
370 if (strcmp (name, init[i].symbol) == 0)
371 {
372 init[i].value = val;
373 init[i].inited = 1;
374 return;
375 }
376 }
377 abort ();
378 }
381 static void
382 set_pe_subsystem (void)
383 {
384 const char *sver;
385 const char *entry;
386 const char *initial_symbol_char;
387 char *end;
388 int len;
389 int i;
390 int subsystem;
391 unsigned long temp_subsystem;
392 static const struct
393 {
394 const char *name;
395 const int value;
396 const char *entry;
397 }
398 v[] =
399 {
400 { "native", 1, "NtProcessStartup" },
401 { "windows", 2, "WinMainCRTStartup" },
402 { "console", 3, "mainCRTStartup" },
403 { "posix", 7, "__PosixProcessStartup"},
404 { "wince", 9, "WinMainCRTStartup" },
405 { "xbox", 14, "mainCRTStartup" },
406 { NULL, 0, NULL }
407 };
408 /* Entry point name for arbitrary subsystem numbers. */
409 static const char default_entry[] = "mainCRTStartup";
411 /* Check for the presence of a version number. */
412 sver = strchr (optarg, ':');
413 if (sver == NULL)
414 len = strlen (optarg);
415 else
416 {
417 len = sver - optarg;
418 set_pe_name ("__major_subsystem_version__",
419 strtoul (sver + 1, &end, 0));
420 if (*end == '.')
421 set_pe_name ("__minor_subsystem_version__",
422 strtoul (end + 1, &end, 0));
423 if (*end != '\0')
424 einfo (_("%P: warning: bad version number in -subsystem option\n"));
425 }
427 /* Check for numeric subsystem. */
428 temp_subsystem = strtoul (optarg, & end, 0);
429 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
430 {
431 /* Search list for a numeric match to use its entry point. */
432 for (i = 0; v[i].name; i++)
433 if (v[i].value == (int) temp_subsystem)
434 break;
436 /* If no match, use the default. */
437 if (v[i].name != NULL)
438 entry = v[i].entry;
439 else
440 entry = default_entry;
442 /* Use this subsystem. */
443 subsystem = (int) temp_subsystem;
444 }
445 else
446 {
447 /* Search for subsystem by name. */
448 for (i = 0; v[i].name; i++)
449 if (strncmp (optarg, v[i].name, len) == 0
450 && v[i].name[len] == '\0')
451 break;
453 if (v[i].name == NULL)
454 {
455 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
456 return;
457 }
459 entry = v[i].entry;
460 subsystem = v[i].value;
461 }
463 set_pe_name ("__subsystem__", subsystem);
465 initial_symbol_char = ${INITIAL_SYMBOL_CHAR};
466 if (*initial_symbol_char != '\0')
467 {
468 char *alc_entry;
470 /* lang_default_entry expects its argument to be permanently
471 allocated, so we don't free this string. */
472 alc_entry = xmalloc (strlen (initial_symbol_char)
473 + strlen (entry)
474 + 1);
475 strcpy (alc_entry, initial_symbol_char);
476 strcat (alc_entry, entry);
477 entry = alc_entry;
478 }
480 lang_default_entry (entry);
482 return;
483 }
486 static void
487 set_pe_value (char *name)
488 {
489 char *end;
491 set_pe_name (name, strtoul (optarg, &end, 0));
493 if (end == optarg)
494 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
496 optarg = end;
497 }
500 static void
501 set_pe_stack_heap (char *resname, char *comname)
502 {
503 set_pe_value (resname);
505 if (*optarg == ',')
506 {
507 optarg++;
508 set_pe_value (comname);
509 }
510 else if (*optarg)
511 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
512 }
515 static bfd_boolean
516 gld${EMULATION_NAME}_handle_option (int optc)
517 {
518 switch (optc)
519 {
520 default:
521 return FALSE;
523 case OPTION_BASE_FILE:
524 link_info.base_file = fopen (optarg, FOPEN_WB);
525 if (link_info.base_file == NULL)
526 {
527 /* xgettext:c-format */
528 fprintf (stderr, _("%s: Can't open base file %s\n"),
529 program_name, optarg);
530 xexit (1);
531 }
532 break;
534 /* PE options. */
535 case OPTION_HEAP:
536 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
537 break;
538 case OPTION_STACK:
539 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
540 break;
541 case OPTION_SUBSYSTEM:
542 set_pe_subsystem ();
543 break;
544 case OPTION_MAJOR_OS_VERSION:
545 set_pe_value ("__major_os_version__");
546 break;
547 case OPTION_MINOR_OS_VERSION:
548 set_pe_value ("__minor_os_version__");
549 break;
550 case OPTION_MAJOR_SUBSYSTEM_VERSION:
551 set_pe_value ("__major_subsystem_version__");
552 break;
553 case OPTION_MINOR_SUBSYSTEM_VERSION:
554 set_pe_value ("__minor_subsystem_version__");
555 break;
556 case OPTION_MAJOR_IMAGE_VERSION:
557 set_pe_value ("__major_image_version__");
558 break;
559 case OPTION_MINOR_IMAGE_VERSION:
560 set_pe_value ("__minor_image_version__");
561 break;
562 case OPTION_FILE_ALIGNMENT:
563 set_pe_value ("__file_alignment__");
564 break;
565 case OPTION_SECTION_ALIGNMENT:
566 set_pe_value ("__section_alignment__");
567 break;
568 case OPTION_DLL:
569 set_pe_name ("__dll__", 1);
570 break;
571 case OPTION_IMAGE_BASE:
572 set_pe_value ("__image_base__");
573 break;
574 case OPTION_SUPPORT_OLD_CODE:
575 support_old_code = 1;
576 break;
577 case OPTION_THUMB_ENTRY:
578 thumb_entry_symbol = optarg;
579 break;
580 #ifdef DLL_SUPPORT
581 case OPTION_OUT_DEF:
582 pe_out_def_filename = xstrdup (optarg);
583 break;
584 case OPTION_EXPORT_ALL:
585 pe_dll_export_everything = 1;
586 break;
587 case OPTION_EXCLUDE_SYMBOLS:
588 pe_dll_add_excludes (optarg, 0);
589 break;
590 case OPTION_EXCLUDE_LIBS:
591 pe_dll_add_excludes (optarg, 1);
592 break;
593 case OPTION_KILL_ATS:
594 pe_dll_kill_ats = 1;
595 break;
596 case OPTION_STDCALL_ALIASES:
597 pe_dll_stdcall_aliases = 1;
598 break;
599 case OPTION_ENABLE_STDCALL_FIXUP:
600 pe_enable_stdcall_fixup = 1;
601 break;
602 case OPTION_DISABLE_STDCALL_FIXUP:
603 pe_enable_stdcall_fixup = 0;
604 break;
605 case OPTION_IMPLIB_FILENAME:
606 pe_implib_filename = xstrdup (optarg);
607 break;
608 case OPTION_WARN_DUPLICATE_EXPORTS:
609 pe_dll_warn_dup_exports = 1;
610 break;
611 case OPTION_IMP_COMPAT:
612 pe_dll_compat_implib = 1;
613 break;
614 case OPTION_ENABLE_AUTO_IMAGE_BASE:
615 pe_enable_auto_image_base = 1;
616 break;
617 case OPTION_DISABLE_AUTO_IMAGE_BASE:
618 pe_enable_auto_image_base = 0;
619 break;
620 case OPTION_DLL_SEARCH_PREFIX:
621 pe_dll_search_prefix = xstrdup (optarg);
622 break;
623 case OPTION_NO_DEFAULT_EXCLUDES:
624 pe_dll_do_default_excludes = 0;
625 break;
626 case OPTION_DLL_ENABLE_AUTO_IMPORT:
627 link_info.pei386_auto_import = 1;
628 break;
629 case OPTION_DLL_DISABLE_AUTO_IMPORT:
630 link_info.pei386_auto_import = 0;
631 break;
632 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
633 link_info.pei386_runtime_pseudo_reloc = 1;
634 break;
635 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
636 link_info.pei386_runtime_pseudo_reloc = 0;
637 break;
638 case OPTION_ENABLE_EXTRA_PE_DEBUG:
639 pe_dll_extra_pe_debug = 1;
640 break;
641 #endif
642 case OPTION_LARGE_ADDRESS_AWARE:
643 real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
644 break;
645 }
646 return TRUE;
647 }
648 \f
650 #ifdef DLL_SUPPORT
651 static unsigned long
652 strhash (const char *str)
653 {
654 const unsigned char *s;
655 unsigned long hash;
656 unsigned int c;
657 unsigned int len;
659 hash = 0;
660 len = 0;
661 s = (const unsigned char *) str;
662 while ((c = *s++) != '\0')
663 {
664 hash += c + (c << 17);
665 hash ^= hash >> 2;
666 ++len;
667 }
668 hash += len + (len << 17);
669 hash ^= hash >> 2;
671 return hash;
672 }
674 /* Use the output file to create a image base for relocatable DLLs. */
676 static unsigned long
677 compute_dll_image_base (const char *ofile)
678 {
679 unsigned long hash = strhash (ofile);
680 return 0x61300000 + ((hash << 16) & 0x0FFC0000);
681 }
682 #endif
684 /* Assign values to the special symbols before the linker script is
685 read. */
687 static void
688 gld_${EMULATION_NAME}_set_symbols (void)
689 {
690 /* Run through and invent symbols for all the
691 names and insert the defaults. */
692 int j;
693 lang_statement_list_type *save;
695 if (!init[IMAGEBASEOFF].inited)
696 {
697 if (link_info.relocatable)
698 init[IMAGEBASEOFF].value = 0;
699 else if (init[DLLOFF].value || (link_info.shared && !link_info.pie))
700 #ifdef DLL_SUPPORT
701 init[IMAGEBASEOFF].value = (pe_enable_auto_image_base) ?
702 compute_dll_image_base (output_filename) : NT_DLL_IMAGE_BASE;
703 #else
704 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
705 #endif
706 else
707 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
708 }
710 /* Don't do any symbol assignments if this is a relocatable link. */
711 if (link_info.relocatable)
712 return;
714 /* Glue the assignments into the abs section. */
715 save = stat_ptr;
717 stat_ptr = &(abs_output_section->children);
719 for (j = 0; init[j].ptr; j++)
720 {
721 long val = init[j].value;
722 lang_assignment_statement_type *rv;
723 rv = lang_add_assignment (exp_assop ('=', init[j].symbol,
724 exp_intop (val)));
725 if (init[j].size == sizeof (short))
726 *(short *) init[j].ptr = val;
727 else if (init[j].size == sizeof (int))
728 *(int *) init[j].ptr = val;
729 else if (init[j].size == sizeof (long))
730 *(long *) init[j].ptr = val;
731 /* This might be a long long or other special type. */
732 else if (init[j].size == sizeof (bfd_vma))
733 *(bfd_vma *) init[j].ptr = val;
734 else abort ();
735 if (j == IMAGEBASEOFF)
736 image_base_statement = rv;
737 }
738 /* Restore the pointer. */
739 stat_ptr = save;
741 if (pe.FileAlignment >
742 pe.SectionAlignment)
743 {
744 einfo (_("%P: warning, file alignment > section alignment.\n"));
745 }
746 }
748 /* This is called after the linker script and the command line options
749 have been read. */
751 static void
752 gld_${EMULATION_NAME}_after_parse (void)
753 {
754 /* The Windows libraries are designed for the linker to treat the
755 entry point as an undefined symbol. Otherwise, the .obj that
756 defines mainCRTStartup is brought in because it is the first
757 encountered in libc.lib and it has other symbols in it which will
758 be pulled in by the link process. To avoid this, we act as
759 though the user specified -u with the entry point symbol.
761 This function is called after the linker script and command line
762 options have been read, so at this point we know the right entry
763 point. This function is called before the input files are
764 opened, so registering the symbol as undefined will make a
765 difference. */
767 if (! link_info.relocatable && entry_symbol.name != NULL)
768 ldlang_add_undef (entry_symbol.name);
769 }
771 /* pe-dll.c directly accesses pe_data_import_dll,
772 so it must be defined outside of #ifdef DLL_SUPPORT.
773 Note - this variable is deliberately not initialised.
774 This allows it to be treated as a common varaible, and only
775 exist in one incarnation in a multiple target enabled linker. */
776 char * pe_data_import_dll;
778 #ifdef DLL_SUPPORT
779 static struct bfd_link_hash_entry *pe_undef_found_sym;
781 static bfd_boolean
782 pe_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
783 {
784 int sl;
785 char *string = inf;
787 sl = strlen (string);
788 if (h->type == bfd_link_hash_defined
789 && strncmp (h->root.string, string, sl) == 0
790 && h->root.string[sl] == '@')
791 {
792 pe_undef_found_sym = h;
793 return FALSE;
794 }
795 return TRUE;
796 }
798 static void
799 pe_fixup_stdcalls (void)
800 {
801 static int gave_warning_message = 0;
802 struct bfd_link_hash_entry *undef, *sym;
804 if (pe_dll_extra_pe_debug)
805 printf ("%s\n", __FUNCTION__);
807 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
808 if (undef->type == bfd_link_hash_undefined)
809 {
810 char* at = strchr (undef->root.string, '@');
811 int lead_at = (*undef->root.string == '@');
812 /* For now, don't try to fixup fastcall symbols. */
814 if (at && !lead_at)
815 {
816 /* The symbol is a stdcall symbol, so let's look for a
817 cdecl symbol with the same name and resolve to that. */
818 char *cname = xstrdup (undef->root.string /* + lead_at */);
819 at = strchr (cname, '@');
820 *at = 0;
821 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
823 if (sym && sym->type == bfd_link_hash_defined)
824 {
825 undef->type = bfd_link_hash_defined;
826 undef->u.def.value = sym->u.def.value;
827 undef->u.def.section = sym->u.def.section;
829 if (pe_enable_stdcall_fixup == -1)
830 {
831 einfo (_("Warning: resolving %s by linking to %s\n"),
832 undef->root.string, cname);
833 if (! gave_warning_message)
834 {
835 gave_warning_message = 1;
836 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
837 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
838 }
839 }
840 }
841 }
842 else
843 {
844 /* The symbol is a cdecl symbol, so we look for stdcall
845 symbols - which means scanning the whole symbol table. */
846 pe_undef_found_sym = 0;
847 bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
848 (char *) undef->root.string);
849 sym = pe_undef_found_sym;
850 if (sym)
851 {
852 undef->type = bfd_link_hash_defined;
853 undef->u.def.value = sym->u.def.value;
854 undef->u.def.section = sym->u.def.section;
856 if (pe_enable_stdcall_fixup == -1)
857 {
858 einfo (_("Warning: resolving %s by linking to %s\n"),
859 undef->root.string, sym->root.string);
860 if (! gave_warning_message)
861 {
862 gave_warning_message = 1;
863 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
864 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
865 }
866 }
867 }
868 }
869 }
870 }
872 static int
873 make_import_fixup (arelent *rel, asection *s)
874 {
875 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
876 char addend[4];
878 if (pe_dll_extra_pe_debug)
879 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
880 (long) rel->address, (long) rel->addend);
882 if (! bfd_get_section_contents (s->owner, s, addend, rel->address, sizeof (addend)))
883 einfo (_("%C: Cannot get section contents - auto-import exception\n"),
884 s->owner, s, rel->address);
886 pe_create_import_fixup (rel, s, bfd_get_32 (s->owner, addend));
888 return 1;
889 }
891 static void
892 pe_find_data_imports (void)
893 {
894 struct bfd_link_hash_entry *undef, *sym;
896 if (link_info.pei386_auto_import == 0)
897 return;
899 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
900 {
901 if (undef->type == bfd_link_hash_undefined)
902 {
903 /* C++ symbols are *long*. */
904 char buf[4096];
906 if (pe_dll_extra_pe_debug)
907 printf ("%s:%s\n", __FUNCTION__, undef->root.string);
909 sprintf (buf, "__imp_%s", undef->root.string);
911 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
913 if (sym && sym->type == bfd_link_hash_defined)
914 {
915 bfd *b = sym->u.def.section->owner;
916 asymbol **symbols;
917 int nsyms, symsize, i;
919 if (link_info.pei386_auto_import == -1)
920 info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"),
921 undef->root.string, buf);
923 symsize = bfd_get_symtab_upper_bound (b);
924 symbols = (asymbol **) xmalloc (symsize);
925 nsyms = bfd_canonicalize_symtab (b, symbols);
927 for (i = 0; i < nsyms; i++)
928 {
929 if (! CONST_STRNEQ (symbols[i]->name, U ("_head_")))
930 continue;
932 if (pe_dll_extra_pe_debug)
933 printf ("->%s\n", symbols[i]->name);
935 pe_data_import_dll = (char*) (symbols[i]->name +
936 sizeof (U ("_head_")) - 1);
937 break;
938 }
940 pe_walk_relocs_of_symbol (&link_info, undef->root.string,
941 make_import_fixup);
943 /* Let's differentiate it somehow from defined. */
944 undef->type = bfd_link_hash_defweak;
945 /* We replace original name with __imp_ prefixed, this
946 1) may trash memory 2) leads to duplicate symbol generation.
947 Still, IMHO it's better than having name poluted. */
948 undef->root.string = sym->root.string;
949 undef->u.def.value = sym->u.def.value;
950 undef->u.def.section = sym->u.def.section;
951 }
952 }
953 }
954 }
956 static bfd_boolean
957 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
958 {
959 if (pe_dll_extra_pe_debug)
960 printf ("+%s\n", h->string);
962 return TRUE;
963 }
964 #endif /* DLL_SUPPORT */
967 static void
968 gld_${EMULATION_NAME}_after_open (void)
969 {
970 #ifdef DLL_SUPPORT
971 if (pe_dll_extra_pe_debug)
972 {
973 bfd *a;
974 struct bfd_link_hash_entry *sym;
976 printf ("%s()\n", __FUNCTION__);
978 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
979 printf ("-%s\n", sym->root.string);
980 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
982 for (a = link_info.input_bfds; a; a = a->link_next)
983 printf ("*%s\n",a->filename);
984 }
985 #endif
987 /* Pass the wacky PE command line options into the output bfd.
988 FIXME: This should be done via a function, rather than by
989 including an internal BFD header. */
991 if (coff_data (output_bfd) == NULL || coff_data (output_bfd)->pe == 0)
992 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"), output_bfd);
994 pe_data (output_bfd)->pe_opthdr = pe;
995 pe_data (output_bfd)->dll = init[DLLOFF].value;
996 pe_data (output_bfd)->real_flags |= real_flags;
998 #ifdef DLL_SUPPORT
999 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
1000 pe_fixup_stdcalls ();
1002 pe_process_import_defs (output_bfd, & link_info);
1004 pe_find_data_imports ();
1006 #if defined (TARGET_IS_i386pe) \
1007 || defined (TARGET_IS_armpe) \
1008 || defined (TARGET_IS_arm_epoc_pe) \
1009 || defined (TARGET_IS_arm_wince_pe)
1010 if (!link_info.relocatable)
1011 pe_dll_build_sections (output_bfd, &link_info);
1012 else
1013 pe_exe_build_sections (output_bfd, &link_info);
1014 #else
1015 if (link_info.shared)
1016 pe_dll_build_sections (output_bfd, &link_info);
1017 #endif
1018 #endif /* DLL_SUPPORT */
1020 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1021 if (strstr (bfd_get_target (output_bfd), "arm") == NULL)
1022 {
1023 /* The arm backend needs special fields in the output hash structure.
1024 These will only be created if the output format is an arm format,
1025 hence we do not support linking and changing output formats at the
1026 same time. Use a link followed by objcopy to change output formats. */
1027 einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
1028 return;
1029 }
1030 {
1031 /* Find a BFD that can hold the interworking stubs. */
1032 LANG_FOR_EACH_INPUT_STATEMENT (is)
1033 {
1034 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
1035 break;
1036 }
1037 }
1038 #endif
1040 {
1041 /* This next chunk of code tries to detect the case where you have
1042 two import libraries for the same DLL (specifically,
1043 symbolically linking libm.a and libc.a in cygwin to
1044 libcygwin.a). In those cases, it's possible for function
1045 thunks from the second implib to be used but without the
1046 head/tail objects, causing an improper import table. We detect
1047 those cases and rename the "other" import libraries to match
1048 the one the head/tail come from, so that the linker will sort
1049 things nicely and produce a valid import table. */
1051 LANG_FOR_EACH_INPUT_STATEMENT (is)
1052 {
1053 if (is->the_bfd->my_archive)
1054 {
1055 int idata2 = 0, reloc_count=0, is_imp = 0;
1056 asection *sec;
1058 /* See if this is an import library thunk. */
1059 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1060 {
1061 if (strcmp (sec->name, ".idata\$2") == 0)
1062 idata2 = 1;
1063 if (CONST_STRNEQ (sec->name, ".idata\$"))
1064 is_imp = 1;
1065 reloc_count += sec->reloc_count;
1066 }
1068 if (is_imp && !idata2 && reloc_count)
1069 {
1070 /* It is, look for the reference to head and see if it's
1071 from our own library. */
1072 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1073 {
1074 int i;
1075 long symsize;
1076 long relsize;
1077 asymbol **symbols;
1078 arelent **relocs;
1079 int nrelocs;
1081 symsize = bfd_get_symtab_upper_bound (is->the_bfd);
1082 if (symsize < 1)
1083 break;
1084 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1085 if (relsize < 1)
1086 break;
1088 symbols = (asymbol **) xmalloc (symsize);
1089 symsize = bfd_canonicalize_symtab (is->the_bfd, symbols);
1090 if (symsize < 0)
1091 {
1092 einfo ("%X%P: unable to process symbols: %E");
1093 return;
1094 }
1096 relocs = (arelent **) xmalloc ((size_t) relsize);
1097 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1098 relocs, symbols);
1099 if (nrelocs < 0)
1100 {
1101 free (relocs);
1102 einfo ("%X%P: unable to process relocs: %E");
1103 return;
1104 }
1106 for (i = 0; i < nrelocs; i++)
1107 {
1108 struct bfd_symbol *s;
1109 struct bfd_link_hash_entry * blhe;
1110 char *other_bfd_filename;
1111 char *n;
1113 s = (relocs[i]->sym_ptr_ptr)[0];
1115 if (s->flags & BSF_LOCAL)
1116 continue;
1118 /* Thunk section with reloc to another bfd. */
1119 blhe = bfd_link_hash_lookup (link_info.hash,
1120 s->name,
1121 FALSE, FALSE, TRUE);
1123 if (blhe == NULL
1124 || blhe->type != bfd_link_hash_defined)
1125 continue;
1127 other_bfd_filename
1128 = blhe->u.def.section->owner->my_archive
1129 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1130 : bfd_get_filename (blhe->u.def.section->owner);
1132 if (strcmp (bfd_get_filename (is->the_bfd->my_archive),
1133 other_bfd_filename) == 0)
1134 continue;
1136 /* Rename this implib to match the other one. */
1137 n = xmalloc (strlen (other_bfd_filename) + 1);
1138 strcpy (n, other_bfd_filename);
1139 is->the_bfd->my_archive->filename = n;
1140 }
1142 free (relocs);
1143 /* Note - we do not free the symbols,
1144 they are now cached in the BFD. */
1145 }
1146 }
1147 }
1148 }
1149 }
1151 {
1152 int is_ms_arch = 0;
1153 bfd *cur_arch = 0;
1154 lang_input_statement_type *is2;
1155 lang_input_statement_type *is3;
1157 /* Careful - this is a shell script. Watch those dollar signs! */
1158 /* Microsoft import libraries have every member named the same,
1159 and not in the right order for us to link them correctly. We
1160 must detect these and rename the members so that they'll link
1161 correctly. There are three types of objects: the head, the
1162 thunks, and the sentinel(s). The head is easy; it's the one
1163 with idata2. We assume that the sentinels won't have relocs,
1164 and the thunks will. It's easier than checking the symbol
1165 table for external references. */
1166 LANG_FOR_EACH_INPUT_STATEMENT (is)
1167 {
1168 if (is->the_bfd->my_archive)
1169 {
1170 char *pnt;
1171 bfd *arch = is->the_bfd->my_archive;
1173 if (cur_arch != arch)
1174 {
1175 cur_arch = arch;
1176 is_ms_arch = 1;
1178 for (is3 = is;
1179 is3 && is3->the_bfd->my_archive == arch;
1180 is3 = (lang_input_statement_type *) is3->next)
1181 {
1182 /* A MS dynamic import library can also contain static
1183 members, so look for the first element with a .dll
1184 extension, and use that for the remainder of the
1185 comparisons. */
1186 pnt = strrchr (is3->the_bfd->filename, '.');
1187 if (pnt != NULL && strcmp (pnt, ".dll") == 0)
1188 break;
1189 }
1191 if (is3 == NULL)
1192 is_ms_arch = 0;
1193 else
1194 {
1195 /* OK, found one. Now look to see if the remaining
1196 (dynamic import) members use the same name. */
1197 for (is2 = is;
1198 is2 && is2->the_bfd->my_archive == arch;
1199 is2 = (lang_input_statement_type *) is2->next)
1200 {
1201 /* Skip static members, ie anything with a .obj
1202 extension. */
1203 pnt = strrchr (is2->the_bfd->filename, '.');
1204 if (pnt != NULL && strcmp (pnt, ".obj") == 0)
1205 continue;
1207 if (strcmp (is3->the_bfd->filename,
1208 is2->the_bfd->filename))
1209 {
1210 is_ms_arch = 0;
1211 break;
1212 }
1213 }
1214 }
1215 }
1217 /* This fragment might have come from an .obj file in a Microsoft
1218 import, and not an actual import record. If this is the case,
1219 then leave the filename alone. */
1220 pnt = strrchr (is->the_bfd->filename, '.');
1222 if (is_ms_arch && (strcmp (pnt, ".dll") == 0))
1223 {
1224 int idata2 = 0, reloc_count=0;
1225 asection *sec;
1226 char *new_name, seq;
1228 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1229 {
1230 if (strcmp (sec->name, ".idata\$2") == 0)
1231 idata2 = 1;
1232 reloc_count += sec->reloc_count;
1233 }
1235 if (idata2) /* .idata2 is the TOC */
1236 seq = 'a';
1237 else if (reloc_count > 0) /* thunks */
1238 seq = 'b';
1239 else /* sentinel */
1240 seq = 'c';
1242 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1243 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1244 is->the_bfd->filename = new_name;
1246 new_name = xmalloc (strlen (is->filename) + 3);
1247 sprintf (new_name, "%s.%c", is->filename, seq);
1248 is->filename = new_name;
1249 }
1250 }
1251 }
1252 }
1254 {
1255 /* The following chunk of code tries to identify jump stubs in
1256 import libraries which are dead code and eliminates them
1257 from the final link. For each exported symbol <sym>, there
1258 is a object file in the import library with a .text section
1259 and several .idata$* sections. The .text section contains the
1260 symbol definition for <sym> which is a jump stub of the form
1261 jmp *__imp_<sym>. The .idata$5 contains the symbol definition
1262 for __imp_<sym> which is the address of the slot for <sym> in
1263 the import address table. When a symbol is imported explicitly
1264 using __declspec(dllimport) declaration, the compiler generates
1265 a reference to __imp_<sym> which directly resolves to the
1266 symbol in .idata$5, in which case the jump stub code is not
1267 needed. The following code tries to identify jump stub sections
1268 in import libraries which are not referred to by anyone and
1269 marks them for exclusion from the final link. */
1270 LANG_FOR_EACH_INPUT_STATEMENT (is)
1271 {
1272 if (is->the_bfd->my_archive)
1273 {
1274 int is_imp = 0;
1275 asection *sec, *stub_sec = NULL;
1277 /* See if this is an import library thunk. */
1278 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1279 {
1280 if (strncmp (sec->name, ".idata\$", 7) == 0)
1281 is_imp = 1;
1282 /* The section containing the jmp stub has code
1283 and has a reloc. */
1284 if ((sec->flags & SEC_CODE) && sec->reloc_count)
1285 stub_sec = sec;
1286 }
1288 if (is_imp && stub_sec)
1289 {
1290 long symsize;
1291 asymbol **symbols;
1292 long src_count;
1293 struct bfd_link_hash_entry * blhe;
1295 symsize = bfd_get_symtab_upper_bound (is->the_bfd);
1296 symbols = xmalloc (symsize);
1297 symsize = bfd_canonicalize_symtab (is->the_bfd, symbols);
1299 for (src_count = 0; src_count < symsize; src_count++)
1300 {
1301 if (symbols[src_count]->section->id == stub_sec->id)
1302 {
1303 /* This symbol belongs to the section containing
1304 the stub. */
1305 blhe = bfd_link_hash_lookup (link_info.hash,
1306 symbols[src_count]->name,
1307 FALSE, FALSE, TRUE);
1308 /* If the symbol in the stub section has no other
1309 undefined references, exclude the stub section
1310 from the final link. */
1311 if (blhe && (blhe->type == bfd_link_hash_defined)
1312 && (blhe->u.undef.next == NULL))
1313 stub_sec->flags |= SEC_EXCLUDE;
1314 }
1315 }
1316 free (symbols);
1317 }
1318 }
1319 }
1320 }
1321 }
1322 \f
1323 static void
1324 gld_${EMULATION_NAME}_before_allocation (void)
1325 {
1326 #ifdef TARGET_IS_ppcpe
1327 /* Here we rummage through the found bfds to collect toc information. */
1328 {
1329 LANG_FOR_EACH_INPUT_STATEMENT (is)
1330 {
1331 if (!ppc_process_before_allocation (is->the_bfd, &link_info))
1332 {
1333 /* xgettext:c-format */
1334 einfo (_("Errors encountered processing file %s\n"), is->filename);
1335 }
1336 }
1337 }
1339 /* We have seen it all. Allocate it, and carry on. */
1340 ppc_allocate_toc_section (&link_info);
1341 #endif /* TARGET_IS_ppcpe */
1343 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1344 /* FIXME: we should be able to set the size of the interworking stub
1345 section.
1347 Here we rummage through the found bfds to collect glue
1348 information. FIXME: should this be based on a command line
1349 option? krk@cygnus.com. */
1350 {
1351 LANG_FOR_EACH_INPUT_STATEMENT (is)
1352 {
1353 if (! bfd_arm_process_before_allocation
1354 (is->the_bfd, & link_info, support_old_code))
1355 {
1356 /* xgettext:c-format */
1357 einfo (_("Errors encountered processing file %s for interworking"),
1358 is->filename);
1359 }
1360 }
1361 }
1363 /* We have seen it all. Allocate it, and carry on. */
1364 bfd_arm_allocate_interworking_sections (& link_info);
1365 #endif /* TARGET_IS_armpe || TARGET_IS_arm_epoc_pe || TARGET_IS_arm_wince_pe */
1367 before_allocation_default ();
1368 }
1369 \f
1370 #ifdef DLL_SUPPORT
1371 /* This is called when an input file isn't recognized as a BFD. We
1372 check here for .DEF files and pull them in automatically. */
1374 static int
1375 saw_option (char *option)
1376 {
1377 int i;
1379 for (i = 0; init[i].ptr; i++)
1380 if (strcmp (init[i].symbol, option) == 0)
1381 return init[i].inited;
1382 return 0;
1383 }
1384 #endif /* DLL_SUPPORT */
1386 static bfd_boolean
1387 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1388 {
1389 #ifdef DLL_SUPPORT
1390 const char *ext = entry->filename + strlen (entry->filename) - 4;
1392 if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0)
1393 {
1394 pe_def_file = def_file_parse (entry->filename, pe_def_file);
1396 if (pe_def_file)
1397 {
1398 int i, buflen=0, len;
1399 char *buf;
1401 for (i = 0; i < pe_def_file->num_exports; i++)
1402 {
1403 len = strlen (pe_def_file->exports[i].internal_name);
1404 if (buflen < len + 2)
1405 buflen = len + 2;
1406 }
1408 buf = (char *) xmalloc (buflen);
1410 for (i = 0; i < pe_def_file->num_exports; i++)
1411 {
1412 struct bfd_link_hash_entry *h;
1414 sprintf (buf, "%s%s", U (""), pe_def_file->exports[i].internal_name);
1416 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1417 if (h == (struct bfd_link_hash_entry *) NULL)
1418 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1419 if (h->type == bfd_link_hash_new)
1420 {
1421 h->type = bfd_link_hash_undefined;
1422 h->u.undef.abfd = NULL;
1423 bfd_link_add_undef (link_info.hash, h);
1424 }
1425 }
1426 free (buf);
1428 /* def_file_print (stdout, pe_def_file); */
1429 if (pe_def_file->is_dll == 1)
1430 link_info.shared = 1;
1432 if (pe_def_file->base_address != (bfd_vma)(-1))
1433 {
1434 pe.ImageBase =
1435 pe_data (output_bfd)->pe_opthdr.ImageBase =
1436 init[IMAGEBASEOFF].value = pe_def_file->base_address;
1437 init[IMAGEBASEOFF].inited = 1;
1438 if (image_base_statement)
1439 image_base_statement->exp =
1440 exp_assop ('=', "__image_base__", exp_intop (pe.ImageBase));
1441 }
1443 if (pe_def_file->stack_reserve != -1
1444 && ! saw_option ("__size_of_stack_reserve__"))
1445 {
1446 pe.SizeOfStackReserve = pe_def_file->stack_reserve;
1447 if (pe_def_file->stack_commit != -1)
1448 pe.SizeOfStackCommit = pe_def_file->stack_commit;
1449 }
1450 if (pe_def_file->heap_reserve != -1
1451 && ! saw_option ("__size_of_heap_reserve__"))
1452 {
1453 pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
1454 if (pe_def_file->heap_commit != -1)
1455 pe.SizeOfHeapCommit = pe_def_file->heap_commit;
1456 }
1457 return TRUE;
1458 }
1459 }
1460 #endif
1461 return FALSE;
1462 }
1464 static bfd_boolean
1465 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1466 {
1467 #ifdef DLL_SUPPORT
1468 #ifdef TARGET_IS_i386pe
1469 pe_dll_id_target ("pei-i386");
1470 #endif
1471 #ifdef TARGET_IS_shpe
1472 pe_dll_id_target ("pei-shl");
1473 #endif
1474 #ifdef TARGET_IS_mipspe
1475 pe_dll_id_target ("pei-mips");
1476 #endif
1477 #ifdef TARGET_IS_armpe
1478 pe_dll_id_target ("pei-arm-little");
1479 #endif
1480 #ifdef TARGET_IS_arm_epoc_pe
1481 pe_dll_id_target ("epoc-pei-arm-little");
1482 #endif
1483 #ifdef TARGET_IS_arm_wince_pe
1484 pe_dll_id_target ("pei-arm-wince-little");
1485 #endif
1486 if (pe_bfd_is_dll (entry->the_bfd))
1487 return pe_implied_import_dll (entry->filename);
1488 #endif
1489 return FALSE;
1490 }
1492 static void
1493 gld_${EMULATION_NAME}_finish (void)
1494 {
1495 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1496 struct bfd_link_hash_entry * h;
1498 if (thumb_entry_symbol != NULL)
1499 {
1500 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
1501 FALSE, FALSE, TRUE);
1503 if (h != (struct bfd_link_hash_entry *) NULL
1504 && (h->type == bfd_link_hash_defined
1505 || h->type == bfd_link_hash_defweak)
1506 && h->u.def.section->output_section != NULL)
1507 {
1508 static char buffer[32];
1509 bfd_vma val;
1511 /* Special procesing is required for a Thumb entry symbol. The
1512 bottom bit of its address must be set. */
1513 val = (h->u.def.value
1514 + bfd_get_section_vma (output_bfd,
1515 h->u.def.section->output_section)
1516 + h->u.def.section->output_offset);
1518 val |= 1;
1520 /* Now convert this value into a string and store it in entry_symbol
1521 where the lang_finish() function will pick it up. */
1522 buffer[0] = '0';
1523 buffer[1] = 'x';
1525 sprintf_vma (buffer + 2, val);
1527 if (entry_symbol.name != NULL && entry_from_cmdline)
1528 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
1529 thumb_entry_symbol, entry_symbol.name);
1530 entry_symbol.name = buffer;
1531 }
1532 else
1533 einfo (_("%P: warning: connot find thumb start symbol %s\n"), thumb_entry_symbol);
1534 }
1535 #endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) */
1537 finish_default ();
1539 #ifdef DLL_SUPPORT
1540 if (link_info.shared
1541 #if !defined(TARGET_IS_shpe) && !defined(TARGET_IS_mipspe)
1542 || (!link_info.relocatable && pe_def_file->num_exports != 0)
1543 #endif
1544 )
1545 {
1546 pe_dll_fill_sections (output_bfd, &link_info);
1547 if (pe_implib_filename)
1548 pe_dll_generate_implib (pe_def_file, pe_implib_filename);
1549 }
1550 #if defined(TARGET_IS_shpe) || defined(TARGET_IS_mipspe)
1551 /* ARM doesn't need relocs. */
1552 else
1553 {
1554 pe_exe_fill_sections (output_bfd, &link_info);
1555 }
1556 #endif
1558 if (pe_out_def_filename)
1559 pe_dll_generate_def_file (pe_out_def_filename);
1560 #endif /* DLL_SUPPORT */
1562 /* I don't know where .idata gets set as code, but it shouldn't be. */
1563 {
1564 asection *asec = bfd_get_section_by_name (output_bfd, ".idata");
1566 if (asec)
1567 {
1568 asec->flags &= ~SEC_CODE;
1569 asec->flags |= SEC_DATA;
1570 }
1571 }
1572 }
1574 \f
1575 /* Place an orphan section.
1577 We use this to put sections in a reasonable place in the file, and
1578 to ensure that they are aligned as required.
1580 We handle grouped sections here as well. A section named .foo$nn
1581 goes into the output section .foo. All grouped sections are sorted
1582 by name.
1584 Grouped sections for the default sections are handled by the
1585 default linker script using wildcards, and are sorted by
1586 sort_sections. */
1588 static bfd_boolean
1589 gld_${EMULATION_NAME}_place_orphan (asection *s)
1590 {
1591 const char *secname;
1592 const char *orig_secname;
1593 char *dollar = NULL;
1594 lang_output_section_statement_type *os;
1595 lang_statement_list_type add_child;
1597 secname = bfd_get_section_name (s->owner, s);
1599 /* Look through the script to see where to place this section. */
1600 orig_secname = secname;
1601 if (!link_info.relocatable
1602 && (dollar = strchr (secname, '$')) != NULL)
1603 {
1604 size_t len = dollar - orig_secname;
1605 char *newname = xmalloc (len + 1);
1606 memcpy (newname, orig_secname, len);
1607 newname[len] = '\0';
1608 secname = newname;
1609 }
1611 os = lang_output_section_find (secname);
1613 lang_list_init (&add_child);
1615 if (os != NULL
1616 && (os->bfd_section == NULL
1617 || os->bfd_section->flags == 0
1618 || ((s->flags ^ os->bfd_section->flags)
1619 & (SEC_LOAD | SEC_ALLOC)) == 0))
1620 {
1621 /* We already have an output section statement with this
1622 name, and its bfd section, if any, has compatible flags.
1623 If the section already exists but does not have any flags set,
1624 then it has been created by the linker, probably as a result of
1625 a --section-start command line switch. */
1626 lang_add_section (&add_child, s, os);
1627 }
1628 else
1629 {
1630 static struct orphan_save hold[] =
1631 {
1632 { ".text",
1633 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1634 0, 0, 0, 0 },
1635 { ".rdata",
1636 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1637 0, 0, 0, 0 },
1638 { ".data",
1639 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1640 0, 0, 0, 0 },
1641 { ".bss",
1642 SEC_ALLOC,
1643 0, 0, 0, 0 }
1644 };
1645 enum orphan_save_index
1646 {
1647 orphan_text = 0,
1648 orphan_rodata,
1649 orphan_data,
1650 orphan_bss
1651 };
1652 static int orphan_init_done = 0;
1653 struct orphan_save *place;
1654 lang_output_section_statement_type *after;
1655 etree_type *address;
1657 if (!orphan_init_done)
1658 {
1659 struct orphan_save *ho;
1660 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1661 if (ho->name != NULL)
1662 {
1663 ho->os = lang_output_section_find (ho->name);
1664 if (ho->os != NULL && ho->os->flags == 0)
1665 ho->os->flags = ho->flags;
1666 }
1667 orphan_init_done = 1;
1668 }
1670 /* Try to put the new output section in a reasonable place based
1671 on the section name and section flags. */
1673 place = NULL;
1674 if ((s->flags & SEC_ALLOC) == 0)
1675 ;
1676 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
1677 place = &hold[orphan_bss];
1678 else if ((s->flags & SEC_READONLY) == 0)
1679 place = &hold[orphan_data];
1680 else if ((s->flags & SEC_CODE) == 0)
1681 place = &hold[orphan_rodata];
1682 else
1683 place = &hold[orphan_text];
1685 after = NULL;
1686 if (place != NULL)
1687 {
1688 if (place->os == NULL)
1689 place->os = lang_output_section_find (place->name);
1690 after = place->os;
1691 if (after == NULL)
1692 after = lang_output_section_find_by_flags (s, &place->os, NULL);
1693 if (after == NULL)
1694 /* *ABS* is always the first output section statement. */
1695 after = (&lang_output_section_statement.head
1696 ->output_section_statement);
1697 }
1699 /* Choose a unique name for the section. This will be needed if the
1700 same section name appears in the input file with different
1701 loadable or allocatable characteristics. */
1702 if (bfd_get_section_by_name (output_bfd, secname) != NULL)
1703 {
1704 static int count = 1;
1705 secname = bfd_get_unique_section_name (output_bfd, secname, &count);
1706 if (secname == NULL)
1707 einfo ("%F%P: place_orphan failed: %E\n");
1708 }
1710 /* All sections in an executable must be aligned to a page boundary. */
1711 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
1712 os = lang_insert_orphan (s, secname, after, place, address, &add_child);
1713 }
1715 {
1716 lang_statement_union_type **pl = &os->children.head;
1718 if (dollar != NULL)
1719 {
1720 bfd_boolean found_dollar;
1722 /* The section name has a '$'. Sort it with the other '$'
1723 sections. */
1724 found_dollar = FALSE;
1725 for ( ; *pl != NULL; pl = &(*pl)->header.next)
1726 {
1727 lang_input_section_type *ls;
1728 const char *lname;
1730 if ((*pl)->header.type != lang_input_section_enum)
1731 continue;
1733 ls = &(*pl)->input_section;
1735 lname = bfd_get_section_name (ls->section->owner, ls->section);
1736 if (strchr (lname, '$') == NULL)
1737 {
1738 if (found_dollar)
1739 break;
1740 }
1741 else
1742 {
1743 found_dollar = TRUE;
1744 if (strcmp (orig_secname, lname) < 0)
1745 break;
1746 }
1747 }
1748 }
1750 if (add_child.head != NULL)
1751 {
1752 add_child.head->header.next = *pl;
1753 *pl = add_child.head;
1754 }
1755 }
1757 return TRUE;
1758 }
1760 static bfd_boolean
1761 gld_${EMULATION_NAME}_open_dynamic_archive
1762 (const char *arch ATTRIBUTE_UNUSED, search_dirs_type *search,
1763 lang_input_statement_type *entry)
1764 {
1765 static const struct
1766 {
1767 const char * format;
1768 bfd_boolean use_prefix;
1769 }
1770 libname_fmt [] =
1771 {
1772 /* Preferred explicit import library for dll's. */
1773 { "lib%s.dll.a", FALSE },
1774 /* Alternate explicit import library for dll's. */
1775 { "%s.dll.a", FALSE },
1776 /* "libfoo.a" could be either an import lib or a static lib.
1777 For backwards compatibility, libfoo.a needs to precede
1778 libfoo.dll and foo.dll in the search. */
1779 { "lib%s.a", FALSE },
1780 /* The 'native' spelling of an import lib name is "foo.lib". */
1781 { "%s.lib", FALSE },
1782 #ifdef DLL_SUPPORT
1783 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
1784 { "%s%s.dll", TRUE },
1785 #endif
1786 /* Try "libfoo.dll" (default preferred dll name). */
1787 { "lib%s.dll", FALSE },
1788 /* Finally try 'native' dll name "foo.dll". */
1789 { "%s.dll", FALSE },
1790 /* Note: If adding more formats to this table, make sure to check to
1791 see if their length is longer than libname_fmt[0].format, and if
1792 so, update the call to xmalloc() below. */
1793 { NULL, FALSE }
1794 };
1795 static unsigned int format_max_len = 0;
1796 const char * filename;
1797 char * full_string;
1798 char * base_string;
1799 unsigned int i;
1802 if (! entry->is_archive)
1803 return FALSE;
1805 filename = entry->filename;
1807 if (format_max_len == 0)
1808 /* We need to allow space in the memory that we are going to allocate
1809 for the characters in the format string. Since the format array is
1810 static we only need to calculate this information once. In theory
1811 this value could also be computed statically, but this introduces
1812 the possibility for a discrepancy and hence a possible memory
1813 corruption. The lengths we compute here will be too long because
1814 they will include any formating characters (%s) in the strings, but
1815 this will not matter. */
1816 for (i = 0; libname_fmt[i].format; i++)
1817 if (format_max_len < strlen (libname_fmt[i].format))
1818 format_max_len = strlen (libname_fmt[i].format);
1820 full_string = xmalloc (strlen (search->name)
1821 + strlen (filename)
1822 + format_max_len
1823 #ifdef DLL_SUPPORT
1824 + (pe_dll_search_prefix
1825 ? strlen (pe_dll_search_prefix) : 0)
1826 #endif
1827 /* Allow for the terminating NUL and for the path
1828 separator character that is inserted between
1829 search->name and the start of the format string. */
1830 + 2);
1832 sprintf (full_string, "%s/", search->name);
1833 base_string = full_string + strlen (full_string);
1835 for (i = 0; libname_fmt[i].format; i++)
1836 {
1837 #ifdef DLL_SUPPORT
1838 if (libname_fmt[i].use_prefix)
1839 {
1840 if (!pe_dll_search_prefix)
1841 continue;
1842 sprintf (base_string, libname_fmt[i].format, pe_dll_search_prefix, filename);
1843 }
1844 else
1845 #endif
1846 sprintf (base_string, libname_fmt[i].format, filename);
1848 if (ldfile_try_open_bfd (full_string, entry))
1849 break;
1850 }
1852 if (!libname_fmt[i].format)
1853 {
1854 free (full_string);
1855 return FALSE;
1856 }
1858 entry->filename = full_string;
1860 return TRUE;
1861 }
1863 static int
1864 gld_${EMULATION_NAME}_find_potential_libraries
1865 (char *name, lang_input_statement_type *entry)
1866 {
1867 return ldfile_open_file_search (name, entry, "", ".lib");
1868 }
1869 \f
1870 static char *
1871 gld_${EMULATION_NAME}_get_script (int *isfile)
1872 EOF
1873 # Scripts compiled in.
1874 # sed commands to quote an ld script as a C string.
1875 sc="-f stringify.sed"
1877 cat >>e${EMULATION_NAME}.c <<EOF
1878 {
1879 *isfile = 0;
1881 if (link_info.relocatable && config.build_constructors)
1882 return
1883 EOF
1884 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1885 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
1886 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1887 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1888 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1889 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1890 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1891 echo ' ; else return' >> e${EMULATION_NAME}.c
1892 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1893 echo '; }' >> e${EMULATION_NAME}.c
1895 cat >>e${EMULATION_NAME}.c <<EOF
1898 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1899 {
1900 gld_${EMULATION_NAME}_before_parse,
1901 syslib_default,
1902 hll_default,
1903 gld_${EMULATION_NAME}_after_parse,
1904 gld_${EMULATION_NAME}_after_open,
1905 after_allocation_default,
1906 set_output_arch_default,
1907 ldemul_default_target,
1908 gld_${EMULATION_NAME}_before_allocation,
1909 gld_${EMULATION_NAME}_get_script,
1910 "${EMULATION_NAME}",
1911 "${OUTPUT_FORMAT}",
1912 gld_${EMULATION_NAME}_finish,
1913 NULL, /* Create output section statements. */
1914 gld_${EMULATION_NAME}_open_dynamic_archive,
1915 gld_${EMULATION_NAME}_place_orphan,
1916 gld_${EMULATION_NAME}_set_symbols,
1917 NULL, /* parse_args */
1918 gld${EMULATION_NAME}_add_options,
1919 gld${EMULATION_NAME}_handle_option,
1920 gld_${EMULATION_NAME}_unrecognized_file,
1921 gld_${EMULATION_NAME}_list_options,
1922 gld_${EMULATION_NAME}_recognized_file,
1923 gld_${EMULATION_NAME}_find_potential_libraries,
1924 NULL /* new_vers_pattern. */
1925 };
1926 EOF