1 # This shell script emits a C file. -*- C -*-
2 # It does some substitutions.
3 if [ -z "$MACHINE" ]; then
6 OUTPUT_ARCH=${ARCH}:${MACHINE}
8 rm -f e${EMULATION_NAME}.c
9 (echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
10 cat >>e${EMULATION_NAME}.c <<EOF
11 /* This file is part of GLD, the Gnu Linker.
12 Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001
13 Free Software Foundation, Inc.
15 This program is free software; you can redistribute it and/or modify
16 it under the terms of the GNU General Public License as published by
17 the Free Software Foundation; either version 2 of the License, or
18 (at your option) any later version.
20 This program is distributed in the hope that it will be useful,
21 but WITHOUT ANY WARRANTY; without even the implied warranty of
22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 GNU General Public License for more details.
25 You should have received a copy of the GNU General Public License
26 along with this program; if not, write to the Free Software
27 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
30 /* The original file generated returned different default scripts depending
31 on whether certain switches were set, but these switches pertain to the
32 Linux system and that particular version of coff. In the NT case, we
33 only determine if the subsystem is console or windows in order to select
34 the correct entry point by default. */
36 #define TARGET_IS_${EMULATION_NAME}
38 /* Do this before including bfd.h, so we prototype the right functions. */
39 #ifdef TARGET_IS_arm_epoc_pe
40 #define bfd_arm_pe_allocate_interworking_sections \
41 bfd_arm_epoc_pe_allocate_interworking_sections
42 #define bfd_arm_pe_get_bfd_for_interworking \
43 bfd_arm_epoc_pe_get_bfd_for_interworking
44 #define bfd_arm_pe_process_before_allocation \
45 bfd_arm_epoc_pe_process_before_allocation
52 #include "libiberty.h"
63 #include "coff/internal.h"
65 /* FIXME: This is a BFD internal header file, and we should not be
67 #include "../bfd/libcoff.h"
74 /* Permit the emulation parameters to override the default section
75 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
76 it seem that include/coff/internal.h should not define
77 PE_DEF_SECTION_ALIGNMENT. */
78 #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
79 #undef PE_DEF_SECTION_ALIGNMENT
80 #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
83 #if defined(TARGET_IS_i386pe)
86 #if defined(TARGET_IS_shpe) || defined(TARGET_IS_mipspe) || defined(TARGET_IS_armpe)
90 #if defined(TARGET_IS_i386pe) || ! defined(DLL_SUPPORT)
91 #define PE_DEF_SUBSYSTEM 3
93 #undef NT_EXE_IMAGE_BASE
94 #undef PE_DEF_SECTION_ALIGNMENT
95 #undef PE_DEF_FILE_ALIGNMENT
96 #define NT_EXE_IMAGE_BASE 0x00010000
97 #ifdef TARGET_IS_armpe
98 #define PE_DEF_SECTION_ALIGNMENT 0x00001000
99 #define PE_DEF_SUBSYSTEM 9
101 #define PE_DEF_SECTION_ALIGNMENT 0x00000400
102 #define PE_DEF_SUBSYSTEM 2
104 #define PE_DEF_FILE_ALIGNMENT 0x00000200
107 static void gld_${EMULATION_NAME}_set_symbols PARAMS ((void));
108 static void gld_${EMULATION_NAME}_after_open PARAMS ((void));
109 static void gld_${EMULATION_NAME}_before_parse PARAMS ((void));
110 static void gld_${EMULATION_NAME}_after_parse PARAMS ((void));
111 static void gld_${EMULATION_NAME}_before_allocation PARAMS ((void));
112 static asection *output_prev_sec_find
113 PARAMS ((lang_output_section_statement_type *));
114 static boolean gld_${EMULATION_NAME}_place_orphan
115 PARAMS ((lang_input_statement_type *, asection *));
116 static char *gld_${EMULATION_NAME}_get_script PARAMS ((int *));
117 static int gld_${EMULATION_NAME}_parse_args PARAMS ((int, char **));
118 static void gld_${EMULATION_NAME}_finish PARAMS ((void));
119 static boolean gld_${EMULATION_NAME}_open_dynamic_archive
120 PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *));
121 static void gld_${EMULATION_NAME}_list_options PARAMS ((FILE *));
122 static void set_pe_name PARAMS ((char *, long));
123 static void set_pe_subsystem PARAMS ((void));
124 static void set_pe_value PARAMS ((char *));
125 static void set_pe_stack_heap PARAMS ((char *, char *));
128 static boolean pe_undef_cdecl_match
129 PARAMS ((struct bfd_link_hash_entry *, PTR));
130 static void pe_fixup_stdcalls PARAMS ((void));
131 static int make_import_fixup PARAMS ((arelent *, asection *));
132 static void pe_find_data_imports PARAMS ((void));
135 static boolean pr_sym PARAMS ((struct bfd_hash_entry *, PTR string));
136 static boolean gld_${EMULATION_NAME}_unrecognized_file
137 PARAMS ((lang_input_statement_type *));
138 static boolean gld_${EMULATION_NAME}_recognized_file
139 PARAMS ((lang_input_statement_type *));
140 static int gld_${EMULATION_NAME}_find_potential_libraries
141 PARAMS ((char *, lang_input_statement_type *));
144 static struct internal_extra_pe_aouthdr pe;
146 static int support_old_code = 0;
147 static char * thumb_entry_symbol = NULL;
148 static lang_assignment_statement_type *image_base_statement = 0;
151 static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable */
152 static char *pe_out_def_filename = NULL;
153 static char *pe_implib_filename = NULL;
154 static int pe_enable_auto_image_base = 0;
155 static char *pe_dll_search_prefix = NULL;
156 static char *pe_data_import_dll = NULL;
159 extern const char *output_filename;
162 gld_${EMULATION_NAME}_before_parse()
164 const bfd_arch_info_type *arch = bfd_scan_arch ("${OUTPUT_ARCH}");
167 ldfile_output_architecture = arch->arch;
168 ldfile_output_machine = arch->mach;
169 ldfile_output_machine_name = arch->printable_name;
172 ldfile_output_architecture = bfd_arch_${ARCH};
173 output_filename = "${EXECUTABLE_NAME:-a.exe}";
175 config.dynamic_link = true;
176 config.has_shared = 1;
177 /* link_info.pei386_auto_import = true; */
179 #if (PE_DEF_SUBSYSTEM == 9) || (PE_DEF_SUBSYSTEM == 2)
180 #if defined TARGET_IS_mipspe || defined TARGET_IS_armpe
181 lang_add_entry ("WinMainCRTStartup", 1);
183 lang_add_entry ("_WinMainCRTStartup", 1);
189 /* PE format extra command line options. */
191 /* Used for setting flags in the PE header. */
192 #define OPTION_BASE_FILE (300 + 1)
193 #define OPTION_DLL (OPTION_BASE_FILE + 1)
194 #define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1)
195 #define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1)
196 #define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1)
197 #define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1)
198 #define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1)
199 #define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
200 #define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1)
201 #define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1)
202 #define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
203 #define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1)
204 #define OPTION_SUBSYSTEM (OPTION_STACK + 1)
205 #define OPTION_HEAP (OPTION_SUBSYSTEM + 1)
206 #define OPTION_SUPPORT_OLD_CODE (OPTION_HEAP + 1)
207 #define OPTION_OUT_DEF (OPTION_SUPPORT_OLD_CODE + 1)
208 #define OPTION_EXPORT_ALL (OPTION_OUT_DEF + 1)
209 #define OPTION_EXCLUDE_SYMBOLS (OPTION_EXPORT_ALL + 1)
210 #define OPTION_KILL_ATS (OPTION_EXCLUDE_SYMBOLS + 1)
211 #define OPTION_STDCALL_ALIASES (OPTION_KILL_ATS + 1)
212 #define OPTION_ENABLE_STDCALL_FIXUP (OPTION_STDCALL_ALIASES + 1)
213 #define OPTION_DISABLE_STDCALL_FIXUP (OPTION_ENABLE_STDCALL_FIXUP + 1)
214 #define OPTION_IMPLIB_FILENAME (OPTION_DISABLE_STDCALL_FIXUP + 1)
215 #define OPTION_THUMB_ENTRY (OPTION_IMPLIB_FILENAME + 1)
216 #define OPTION_WARN_DUPLICATE_EXPORTS (OPTION_THUMB_ENTRY + 1)
217 #define OPTION_IMP_COMPAT (OPTION_WARN_DUPLICATE_EXPORTS + 1)
218 #define OPTION_ENABLE_AUTO_IMAGE_BASE (OPTION_IMP_COMPAT + 1)
219 #define OPTION_DISABLE_AUTO_IMAGE_BASE (OPTION_ENABLE_AUTO_IMAGE_BASE + 1)
220 #define OPTION_DLL_SEARCH_PREFIX (OPTION_DISABLE_AUTO_IMAGE_BASE + 1)
221 #define OPTION_NO_DEFAULT_EXCLUDES (OPTION_DLL_SEARCH_PREFIX + 1)
222 #define OPTION_DLL_ENABLE_AUTO_IMPORT (OPTION_NO_DEFAULT_EXCLUDES + 1)
223 #define OPTION_DLL_DISABLE_AUTO_IMPORT (OPTION_DLL_ENABLE_AUTO_IMPORT + 1)
224 #define OPTION_ENABLE_EXTRA_PE_DEBUG (OPTION_DLL_DISABLE_AUTO_IMPORT + 1)
226 static struct option longopts[] = {
228 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
229 {"dll", no_argument, NULL, OPTION_DLL},
230 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
231 {"heap", required_argument, NULL, OPTION_HEAP},
232 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
233 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
234 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
235 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
236 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
237 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
238 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
239 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
240 {"stack", required_argument, NULL, OPTION_STACK},
241 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
242 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
243 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
245 /* getopt allows abbreviations, so we do this to stop it from treating -o
246 as an abbreviation for this option */
247 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
248 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
249 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
250 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
251 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
252 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
253 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
254 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
255 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
256 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
257 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
258 {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
259 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
260 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
261 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
262 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
263 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
264 {"enable-extra-pe-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
266 {NULL, no_argument, NULL, 0}
270 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
271 parameters which may be input from the command line */
282 #define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0}
284 static definfo init[] =
286 /* imagebase must be first */
287 #define IMAGEBASEOFF 0
288 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE),
290 {&dll, sizeof(dll), 0, "__dll__", 0},
291 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
292 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
293 D(MajorOperatingSystemVersion,"__major_os_version__", 4),
294 D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
295 D(MajorImageVersion,"__major_image_version__", 1),
296 D(MinorImageVersion,"__minor_image_version__", 0),
297 #ifdef TARGET_IS_armpe
298 D(MajorSubsystemVersion,"__major_subsystem_version__", 2),
300 D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
302 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
303 D(Subsystem,"__subsystem__", ${SUBSYSTEM}),
304 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000),
305 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
306 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
307 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
308 D(LoaderFlags,"__loader_flags__", 0x0),
309 { NULL, 0, 0, NULL, 0 }
313 gld_${EMULATION_NAME}_list_options (file)
316 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
317 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
318 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
319 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
320 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
321 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
322 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
323 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
324 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
325 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
326 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
327 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
328 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
329 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
330 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
331 fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n"));
333 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
334 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
335 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
336 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
337 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
338 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
339 fprintf (file, _(" --out-implib <file> Generate import library\n"));
340 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
341 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n"));
342 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n"));
343 fprintf (file, _(" create __imp_<SYMBOL> as well.\n"));
344 fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n"));
345 fprintf (file, _(" unless user specifies one\n"));
346 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));
347 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll witout an\n"));
348 fprintf (file, _(" importlib, use <string><basename>.dll \n"));
349 fprintf (file, _(" in preference to lib<basename>.dll \n"));
350 fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to \n"));
351 fprintf (file, _(" __imp_sym for DATA references\n"));
352 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
353 fprintf (file, _(" --enable-extra-pe-debug Enable verbose debug output when building\n"));
354 fprintf (file, _(" or linking to DLLs (esp. auto-import)\n"));
359 set_pe_name (name, val)
364 /* Find the name and set it. */
365 for (i = 0; init[i].ptr; i++)
367 if (strcmp (name, init[i].symbol) == 0)
392 { "native", 1, "NtProcessStartup" },
393 #if defined TARGET_IS_mipspe || defined TARGET_IS_armpe
394 { "windows", 2, "WinMainCRTStartup" },
396 { "windows", 2, "WinMainCRTStartup" },
398 { "console", 3, "mainCRTStartup" },
400 /* The Microsoft linker does not recognize this. */
403 { "posix", 7, "__PosixProcessStartup"},
404 { "wince", 9, "_WinMainCRTStartup" },
408 sver = strchr (optarg, ':');
410 len = strlen (optarg);
416 set_pe_name ("__major_subsystem_version__",
417 strtoul (sver + 1, &end, 0));
419 set_pe_name ("__minor_subsystem_version__",
420 strtoul (end + 1, &end, 0));
422 einfo (_("%P: warning: bad version number in -subsystem option\n"));
425 for (i = 0; v[i].name; i++)
427 if (strncmp (optarg, v[i].name, len) == 0
428 && v[i].name[len] == '\0')
430 const char *initial_symbol_char;
433 set_pe_name ("__subsystem__", v[i].value);
435 initial_symbol_char = ${INITIAL_SYMBOL_CHAR};
436 if (*initial_symbol_char == '\0')
442 /* lang_add_entry expects its argument to be permanently
443 allocated, so we don't free this string. */
444 alc_entry = xmalloc (strlen (initial_symbol_char)
445 + strlen (v[i].entry)
447 strcpy (alc_entry, initial_symbol_char);
448 strcat (alc_entry, v[i].entry);
452 lang_add_entry (entry, 1);
458 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
470 set_pe_name (name, strtoul (optarg, &end, 0));
473 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
479 set_pe_stack_heap (resname, comname)
483 set_pe_value (resname);
488 set_pe_value (comname);
491 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
497 gld_${EMULATION_NAME}_parse_args(argc, argv)
503 int prevoptind = optind;
504 int prevopterr = opterr;
506 static int lastoptind = -1;
508 if (lastoptind != optind)
514 optc = getopt_long_only (argc, argv, "-", longopts, &longind);
525 case OPTION_BASE_FILE:
526 link_info.base_file = (PTR) fopen (optarg, FOPEN_WB);
527 if (link_info.base_file == NULL)
529 /* xgettext:c-format */
530 fprintf (stderr, _("%s: Can't open base file %s\n"),
531 program_name, optarg);
538 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
541 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
543 case OPTION_SUBSYSTEM:
546 case OPTION_MAJOR_OS_VERSION:
547 set_pe_value ("__major_os_version__");
549 case OPTION_MINOR_OS_VERSION:
550 set_pe_value ("__minor_os_version__");
552 case OPTION_MAJOR_SUBSYSTEM_VERSION:
553 set_pe_value ("__major_subsystem_version__");
555 case OPTION_MINOR_SUBSYSTEM_VERSION:
556 set_pe_value ("__minor_subsystem_version__");
558 case OPTION_MAJOR_IMAGE_VERSION:
559 set_pe_value ("__major_image_version__");
561 case OPTION_MINOR_IMAGE_VERSION:
562 set_pe_value ("__minor_image_version__");
564 case OPTION_FILE_ALIGNMENT:
565 set_pe_value ("__file_alignment__");
567 case OPTION_SECTION_ALIGNMENT:
568 set_pe_value ("__section_alignment__");
571 set_pe_name ("__dll__", 1);
573 case OPTION_IMAGE_BASE:
574 set_pe_value ("__image_base__");
576 case OPTION_SUPPORT_OLD_CODE:
577 support_old_code = 1;
579 case OPTION_THUMB_ENTRY:
580 thumb_entry_symbol = optarg;
584 pe_out_def_filename = xstrdup (optarg);
586 case OPTION_EXPORT_ALL:
587 pe_dll_export_everything = 1;
589 case OPTION_EXCLUDE_SYMBOLS:
590 pe_dll_add_excludes (optarg);
592 case OPTION_KILL_ATS:
595 case OPTION_STDCALL_ALIASES:
596 pe_dll_stdcall_aliases = 1;
598 case OPTION_ENABLE_STDCALL_FIXUP:
599 pe_enable_stdcall_fixup = 1;
601 case OPTION_DISABLE_STDCALL_FIXUP:
602 pe_enable_stdcall_fixup = 0;
604 case OPTION_IMPLIB_FILENAME:
605 pe_implib_filename = xstrdup (optarg);
607 case OPTION_WARN_DUPLICATE_EXPORTS:
608 pe_dll_warn_dup_exports = 1;
610 case OPTION_IMP_COMPAT:
611 pe_dll_compat_implib = 1;
613 case OPTION_ENABLE_AUTO_IMAGE_BASE:
614 pe_enable_auto_image_base = 1;
616 case OPTION_DISABLE_AUTO_IMAGE_BASE:
617 pe_enable_auto_image_base = 0;
619 case OPTION_DLL_SEARCH_PREFIX:
620 pe_dll_search_prefix = xstrdup( optarg );
622 case OPTION_NO_DEFAULT_EXCLUDES:
623 pe_dll_do_default_excludes = 0;
625 case OPTION_DLL_ENABLE_AUTO_IMPORT:
626 link_info.pei386_auto_import = true;
628 case OPTION_DLL_DISABLE_AUTO_IMPORT:
629 link_info.pei386_auto_import = false;
631 case OPTION_ENABLE_EXTRA_PE_DEBUG:
632 pe_dll_extra_pe_debug = 1;
642 strhash (const char *str)
644 const unsigned char *s;
651 s = (const unsigned char *) str;
652 while ((c = *s++) != '\0')
654 hash += c + (c << 17);
658 hash += len + (len << 17);
664 /* Use the output file to create a image base for relocatable DLLs. */
666 compute_dll_image_base (const char *ofile)
668 unsigned long hash = strhash (ofile);
669 return 0x60000000 | ((hash << 16) & 0x0FFC0000);
673 /* Assign values to the special symbols before the linker script is
677 gld_${EMULATION_NAME}_set_symbols ()
679 /* Run through and invent symbols for all the
680 names and insert the defaults. */
682 lang_statement_list_type *save;
684 if (!init[IMAGEBASEOFF].inited)
686 if (link_info.relocateable)
687 init[IMAGEBASEOFF].value = 0;
688 else if (init[DLLOFF].value || link_info.shared)
690 init[IMAGEBASEOFF].value = (pe_enable_auto_image_base) ?
691 compute_dll_image_base (output_filename) : NT_DLL_IMAGE_BASE;
693 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
696 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
699 /* Don't do any symbol assignments if this is a relocateable link. */
700 if (link_info.relocateable)
703 /* Glue the assignments into the abs section */
706 stat_ptr = &(abs_output_section->children);
708 for (j = 0; init[j].ptr; j++)
710 long val = init[j].value;
711 lang_assignment_statement_type *rv;
712 rv = lang_add_assignment (exp_assop ('=' ,init[j].symbol, exp_intop (val)));
713 if (init[j].size == sizeof(short))
714 *(short *)init[j].ptr = val;
715 else if (init[j].size == sizeof(int))
716 *(int *)init[j].ptr = val;
717 else if (init[j].size == sizeof(long))
718 *(long *)init[j].ptr = val;
719 /* This might be a long long or other special type. */
720 else if (init[j].size == sizeof(bfd_vma))
721 *(bfd_vma *)init[j].ptr = val;
723 if (j == IMAGEBASEOFF)
724 image_base_statement = rv;
726 /* Restore the pointer. */
729 if (pe.FileAlignment >
732 einfo (_("%P: warning, file alignment > section alignment.\n"));
736 /* This is called after the linker script and the command line options
740 gld_${EMULATION_NAME}_after_parse ()
742 /* The Windows libraries are designed for the linker to treat the
743 entry point as an undefined symbol. Otherwise, the .obj that
744 defines mainCRTStartup is brought in because it is the first
745 encountered in libc.lib and it has other symbols in it which will
746 be pulled in by the link process. To avoid this, we act as
747 though the user specified -u with the entry point symbol.
749 This function is called after the linker script and command line
750 options have been read, so at this point we know the right entry
751 point. This function is called before the input files are
752 opened, so registering the symbol as undefined will make a
755 if (! link_info.relocateable && entry_symbol != NULL)
756 ldlang_add_undef (entry_symbol);
759 /* Previously, pe-dll.c directly accessed pe_data_import_dll,
760 which was only defined if DLL_SUPPORT. This cause a build
761 failure on certain targets. At least this function will
762 exist regardless of whether DLL_SUPPORT is defined or not.
764 However, it's still a kludge. pe-dll.c shouldn't directly
765 call any functions other than the gld_${EMULATION_NAME}_*. */
768 pe_get_data_import_dll_name ()
771 return pe_data_import_dll;
778 static struct bfd_link_hash_entry *pe_undef_found_sym;
781 pe_undef_cdecl_match (h, string)
782 struct bfd_link_hash_entry *h;
786 sl = strlen (string); /* silence compiler warning */
787 if (h->type == bfd_link_hash_defined
788 && strncmp (h->root.string, string, sl) == 0
789 && h->root.string[sl] == '@')
791 pe_undef_found_sym = h;
800 static int gave_warning_message = 0;
801 struct bfd_link_hash_entry *undef, *sym;
803 if (pe_dll_extra_pe_debug)
805 printf ("%s\n", __FUNCTION__);
808 for (undef = link_info.hash->undefs; undef; undef=undef->next)
809 if (undef->type == bfd_link_hash_undefined)
811 at = strchr (undef->root.string, '@');
814 /* The symbol is a stdcall symbol, so let's look for a cdecl
815 symbol with the same name and resolve to that */
816 char *cname = xstrdup (undef->root.string);
817 at = strchr (cname, '@');
819 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
820 if (sym && sym->type == bfd_link_hash_defined)
822 undef->type = bfd_link_hash_defined;
823 undef->u.def.value = sym->u.def.value;
824 undef->u.def.section = sym->u.def.section;
825 if (pe_enable_stdcall_fixup == -1)
827 einfo (_("Warning: resolving %s by linking to %s\n"),
828 undef->root.string, cname);
829 if (! gave_warning_message)
831 gave_warning_message = 1;
832 einfo(_("Use --enable-stdcall-fixup to disable these warnings\n"));
833 einfo(_("Use --disable-stdcall-fixup to disable these fixups\n"));
840 /* The symbol is a cdecl symbol, so we look for stdcall
841 symbols - which means scanning the whole symbol table */
842 pe_undef_found_sym = 0;
843 bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
844 (PTR) undef->root.string);
845 sym = pe_undef_found_sym;
848 undef->type = bfd_link_hash_defined;
849 undef->u.def.value = sym->u.def.value;
850 undef->u.def.section = sym->u.def.section;
851 if (pe_enable_stdcall_fixup == -1)
853 einfo (_("Warning: resolving %s by linking to %s\n"),
854 undef->root.string, sym->root.string);
855 if (! gave_warning_message)
857 gave_warning_message = 1;
858 einfo(_("Use --enable-stdcall-fixup to disable these warnings\n"));
859 einfo(_("Use --disable-stdcall-fixup to disable these fixups\n"));
868 make_import_fixup (rel, s)
872 struct symbol_cache_entry *sym = *rel->sym_ptr_ptr;
874 if (pe_dll_extra_pe_debug)
876 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
877 (long) rel->address, (long) rel->addend);
882 if (!bfd_get_section_contents(s->owner, s, &addend, rel->address, sizeof(addend)))
884 einfo (_("%C: Cannot get section contents - auto-import exception\n"),
885 s->owner, s, rel->address);
889 pe_create_import_fixup (rel);
892 einfo (_("%C: variable '%T' can't be auto-imported. Please read the documentation for ld's --enable-auto-import for details.\n"),
893 s->owner, s, rel->address, sym->name);
902 pe_find_data_imports ()
904 struct bfd_link_hash_entry *undef, *sym;
905 for (undef = link_info.hash->undefs; undef; undef=undef->next)
907 if (undef->type == bfd_link_hash_undefined)
909 /* C++ symbols are *long* */
911 if (pe_dll_extra_pe_debug)
913 printf ("%s:%s\n", __FUNCTION__, undef->root.string);
915 sprintf (buf, "__imp_%s", undef->root.string);
917 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
918 if (sym && sym->type == bfd_link_hash_defined)
920 einfo (_("Warning: resolving %s by linking to %s (auto-import)\n"),
921 undef->root.string, buf);
923 bfd *b = sym->u.def.section->owner;
925 int nsyms, symsize, i;
927 symsize = bfd_get_symtab_upper_bound (b);
928 symbols = (asymbol **) xmalloc (symsize);
929 nsyms = bfd_canonicalize_symtab (b, symbols);
931 for (i = 0; i < nsyms; i++)
933 if (memcmp(symbols[i]->name, "__head_",
934 sizeof ("__head_") - 1))
936 if (pe_dll_extra_pe_debug)
938 printf ("->%s\n", symbols[i]->name);
940 pe_data_import_dll = (char*) (symbols[i]->name +
941 sizeof ("__head_") - 1);
946 pe_walk_relocs_of_symbol (&link_info, undef->root.string,
949 /* let's differentiate it somehow from defined */
950 undef->type = bfd_link_hash_defweak;
951 /* we replace original name with __imp_ prefixed, this
952 1) may trash memory 2) leads to duplicate symbol generation.
953 Still, IMHO it's better than having name poluted. */
954 undef->root.string = sym->root.string;
955 undef->u.def.value = sym->u.def.value;
956 undef->u.def.section = sym->u.def.section;
961 #endif /* DLL_SUPPORT */
965 struct bfd_hash_entry *h;
966 PTR string ATTRIBUTE_UNUSED;
968 if (pe_dll_extra_pe_debug)
970 printf("+%s\n",h->string);
977 gld_${EMULATION_NAME}_after_open ()
980 if (pe_dll_extra_pe_debug)
983 struct bfd_link_hash_entry *sym;
984 printf ("%s()\n", __FUNCTION__);
986 for (sym = link_info.hash->undefs; sym; sym=sym->next)
987 printf ("-%s\n", sym->root.string);
988 bfd_hash_traverse (&link_info.hash->table, pr_sym,NULL);
990 for (a = link_info.input_bfds; a; a = a->link_next)
992 printf("*%s\n",a->filename);
996 /* Pass the wacky PE command line options into the output bfd.
997 FIXME: This should be done via a function, rather than by
998 including an internal BFD header. */
1000 if (coff_data (output_bfd) == NULL || coff_data (output_bfd)->pe == 0)
1001 einfo (_("%F%P: PE operations on non PE file.\n"));
1003 pe_data (output_bfd)->pe_opthdr = pe;
1004 pe_data (output_bfd)->dll = init[DLLOFF].value;
1007 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
1008 pe_fixup_stdcalls ();
1010 pe_find_data_imports ();
1012 pe_process_import_defs(output_bfd, &link_info);
1013 if (link_info.shared)
1014 pe_dll_build_sections (output_bfd, &link_info);
1016 #ifndef TARGET_IS_i386pe
1017 #ifndef TARGET_IS_armpe
1019 pe_exe_build_sections (output_bfd, &link_info);
1024 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
1025 if (strstr (bfd_get_target (output_bfd), "arm") == NULL)
1027 /* The arm backend needs special fields in the output hash structure.
1028 These will only be created if the output format is an arm format,
1029 hence we do not support linking and changing output formats at the
1030 same time. Use a link followed by objcopy to change output formats. */
1031 einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
1035 /* Find a BFD that can hold the interworking stubs. */
1036 LANG_FOR_EACH_INPUT_STATEMENT (is)
1038 if (bfd_arm_pe_get_bfd_for_interworking (is->the_bfd, & link_info))
1045 /* This next chunk of code tries to detect the case where you have
1046 two import libraries for the same DLL (specifically,
1047 symbolically linking libm.a and libc.a in cygwin to
1048 libcygwin.a). In those cases, it's possible for function
1049 thunks from the second implib to be used but without the
1050 head/tail objects, causing an improper import table. We detect
1051 those cases and rename the "other" import libraries to match
1052 the one the head/tail come from, so that the linker will sort
1053 things nicely and produce a valid import table. */
1055 LANG_FOR_EACH_INPUT_STATEMENT (is)
1057 if (is->the_bfd->my_archive)
1059 int idata2 = 0, reloc_count=0, is_imp = 0;
1062 /* See if this is an import library thunk. */
1063 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1065 if (strcmp (sec->name, ".idata\$2") == 0)
1067 if (strncmp (sec->name, ".idata\$", 7) == 0)
1069 reloc_count += sec->reloc_count;
1072 if (is_imp && !idata2 && reloc_count)
1074 /* It is, look for the reference to head and see if it's
1075 from our own library. */
1076 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1085 symsize = bfd_get_symtab_upper_bound (is->the_bfd);
1088 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1092 symbols = (asymbol **) xmalloc (symsize);
1093 symsize = bfd_canonicalize_symtab (is->the_bfd, symbols);
1096 einfo ("%X%P: unable to process symbols: %E");
1100 relocs = (arelent **) xmalloc ((size_t) relsize);
1101 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1106 einfo ("%X%P: unable to process relocs: %E");
1110 for (i = 0; i < nrelocs; i++)
1112 struct symbol_cache_entry *s;
1113 struct bfd_link_hash_entry * blhe;
1117 s = (relocs[i]->sym_ptr_ptr)[0];
1119 if (s->flags & BSF_LOCAL)
1122 /* Thunk section with reloc to another bfd. */
1123 blhe = bfd_link_hash_lookup (link_info.hash,
1125 false, false, true);
1128 || blhe->type != bfd_link_hash_defined)
1131 other_bfd = blhe->u.def.section->owner;
1133 if (strcmp (is->the_bfd->my_archive->filename,
1134 other_bfd->my_archive->filename) == 0)
1137 /* Rename this implib to match the other. */
1138 n = (char *) xmalloc (strlen (other_bfd->my_archive->filename) + 1);
1140 strcpy (n, other_bfd->my_archive->filename);
1142 is->the_bfd->my_archive->filename = n;
1146 /* Note - we do not free the symbols,
1147 they are now cached in the BFD. */
1157 lang_input_statement_type *is2;
1159 /* Careful - this is a shell script. Watch those dollar signs! */
1160 /* Microsoft import libraries have every member named the same,
1161 and not in the right order for us to link them correctly. We
1162 must detect these and rename the members so that they'll link
1163 correctly. There are three types of objects: the head, the
1164 thunks, and the sentinel(s). The head is easy; it's the one
1165 with idata2. We assume that the sentinels won't have relocs,
1166 and the thunks will. It's easier than checking the symbol
1167 table for external references. */
1168 LANG_FOR_EACH_INPUT_STATEMENT (is)
1170 if (is->the_bfd->my_archive)
1172 bfd *arch = is->the_bfd->my_archive;
1173 if (cur_arch != arch)
1178 is2 && is2->the_bfd->my_archive == arch;
1179 is2 = (lang_input_statement_type *)is2->next)
1181 if (strcmp (is->the_bfd->filename, is2->the_bfd->filename))
1188 int idata2 = 0, reloc_count=0;
1190 char *new_name, seq;
1192 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1194 if (strcmp (sec->name, ".idata\$2") == 0)
1196 reloc_count += sec->reloc_count;
1199 if (idata2) /* .idata2 is the TOC */
1201 else if (reloc_count > 0) /* thunks */
1206 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1207 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1208 is->the_bfd->filename = new_name;
1210 new_name = xmalloc (strlen (is->filename) + 3);
1211 sprintf (new_name, "%s.%c", is->filename, seq);
1212 is->filename = new_name;
1220 gld_${EMULATION_NAME}_before_allocation()
1222 #ifdef TARGET_IS_ppcpe
1223 /* Here we rummage through the found bfds to collect toc information */
1225 LANG_FOR_EACH_INPUT_STATEMENT (is)
1227 if (!ppc_process_before_allocation (is->the_bfd, &link_info))
1229 /* xgettext:c-format */
1230 einfo (_("Errors encountered processing file %s\n"), is->filename);
1235 /* We have seen it all. Allocate it, and carry on */
1236 ppc_allocate_toc_section (&link_info);
1237 #endif /* TARGET_IS_ppcpe */
1239 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
1240 /* FIXME: we should be able to set the size of the interworking stub
1243 Here we rummage through the found bfds to collect glue
1244 information. FIXME: should this be based on a command line
1245 option? krk@cygnus.com */
1247 LANG_FOR_EACH_INPUT_STATEMENT (is)
1249 if (! bfd_arm_pe_process_before_allocation
1250 (is->the_bfd, & link_info, support_old_code))
1252 /* xgettext:c-format */
1253 einfo (_("Errors encountered processing file %s for interworking"),
1259 /* We have seen it all. Allocate it, and carry on */
1260 bfd_arm_pe_allocate_interworking_sections (& link_info);
1261 #endif /* TARGET_IS_armpe */
1265 /* This is called when an input file isn't recognized as a BFD. We
1266 check here for .DEF files and pull them in automatically. */
1269 saw_option(char *option)
1272 for (i=0; init[i].ptr; i++)
1273 if (strcmp (init[i].symbol, option) == 0)
1274 return init[i].inited;
1277 #endif /* DLL_SUPPORT */
1280 gld_${EMULATION_NAME}_unrecognized_file(entry)
1281 lang_input_statement_type *entry ATTRIBUTE_UNUSED;
1284 const char *ext = entry->filename + strlen (entry->filename) - 4;
1286 if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0)
1288 if (pe_def_file == 0)
1289 pe_def_file = def_file_empty ();
1290 def_file_parse (entry->filename, pe_def_file);
1293 int i, buflen=0, len;
1295 for (i=0; i<pe_def_file->num_exports; i++)
1297 len = strlen(pe_def_file->exports[i].internal_name);
1301 buf = (char *) xmalloc (buflen);
1302 for (i=0; i<pe_def_file->num_exports; i++)
1304 struct bfd_link_hash_entry *h;
1305 sprintf(buf, "_%s", pe_def_file->exports[i].internal_name);
1307 h = bfd_link_hash_lookup (link_info.hash, buf, true, true, true);
1308 if (h == (struct bfd_link_hash_entry *) NULL)
1309 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1310 if (h->type == bfd_link_hash_new)
1312 h->type = bfd_link_hash_undefined;
1313 h->u.undef.abfd = NULL;
1314 bfd_link_add_undef (link_info.hash, h);
1319 /* def_file_print (stdout, pe_def_file); */
1320 if (pe_def_file->is_dll == 1)
1321 link_info.shared = 1;
1323 if (pe_def_file->base_address != (bfd_vma)(-1))
1326 pe_data (output_bfd)->pe_opthdr.ImageBase =
1327 init[IMAGEBASEOFF].value = pe_def_file->base_address;
1328 init[IMAGEBASEOFF].inited = 1;
1329 if (image_base_statement)
1330 image_base_statement->exp =
1331 exp_assop ('=', "__image_base__", exp_intop (pe.ImageBase));
1335 /* Not sure if these *should* be set */
1336 if (pe_def_file->version_major != -1)
1338 pe.MajorImageVersion = pe_def_file->version_major;
1339 pe.MinorImageVersion = pe_def_file->version_minor;
1342 if (pe_def_file->stack_reserve != -1
1343 && ! saw_option ("__size_of_stack_reserve__"))
1345 pe.SizeOfStackReserve = pe_def_file->stack_reserve;
1346 if (pe_def_file->stack_commit != -1)
1347 pe.SizeOfStackCommit = pe_def_file->stack_commit;
1349 if (pe_def_file->heap_reserve != -1
1350 && ! saw_option ("__size_of_heap_reserve__"))
1352 pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
1353 if (pe_def_file->heap_commit != -1)
1354 pe.SizeOfHeapCommit = pe_def_file->heap_commit;
1365 gld_${EMULATION_NAME}_recognized_file(entry)
1366 lang_input_statement_type *entry ATTRIBUTE_UNUSED;
1369 #ifdef TARGET_IS_i386pe
1370 pe_dll_id_target ("pei-i386");
1372 #ifdef TARGET_IS_shpe
1373 pe_dll_id_target ("pei-shl");
1375 #ifdef TARGET_IS_mipspe
1376 pe_dll_id_target ("pei-mips");
1378 #ifdef TARGET_IS_armpe
1379 pe_dll_id_target ("pei-arm-little");
1381 if (bfd_get_format (entry->the_bfd) == bfd_object)
1383 const char *ext = entry->filename + strlen (entry->filename) - 4;
1384 if (strcmp (ext, ".dll") == 0 || strcmp (ext, ".DLL") == 0)
1385 return pe_implied_import_dll (entry->filename);
1392 gld_${EMULATION_NAME}_finish ()
1394 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
1395 struct bfd_link_hash_entry * h;
1397 if (thumb_entry_symbol != NULL)
1399 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol, false, false, true);
1401 if (h != (struct bfd_link_hash_entry *) NULL
1402 && (h->type == bfd_link_hash_defined
1403 || h->type == bfd_link_hash_defweak)
1404 && h->u.def.section->output_section != NULL)
1406 static char buffer[32];
1409 /* Special procesing is required for a Thumb entry symbol. The
1410 bottom bit of its address must be set. */
1411 val = (h->u.def.value
1412 + bfd_get_section_vma (output_bfd,
1413 h->u.def.section->output_section)
1414 + h->u.def.section->output_offset);
1418 /* Now convert this value into a string and store it in entry_symbol
1419 where the lang_finish() function will pick it up. */
1423 sprintf_vma (buffer + 2, val);
1425 if (entry_symbol != NULL && entry_from_cmdline)
1426 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
1427 thumb_entry_symbol, entry_symbol);
1428 entry_symbol = buffer;
1431 einfo (_("%P: warning: connot find thumb start symbol %s\n"), thumb_entry_symbol);
1433 #endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) */
1436 if (link_info.shared)
1438 pe_dll_fill_sections (output_bfd, &link_info);
1439 if (pe_implib_filename)
1440 pe_dll_generate_implib (pe_def_file, pe_implib_filename);
1442 #if defined(TARGET_IS_shpe) || defined(TARGET_IS_mipspe)
1443 /* ARM doesn't need relocs. */
1446 pe_exe_fill_sections (output_bfd, &link_info);
1450 if (pe_out_def_filename)
1451 pe_dll_generate_def_file (pe_out_def_filename);
1452 #endif /* DLL_SUPPORT */
1454 /* I don't know where .idata gets set as code, but it shouldn't be */
1456 asection *asec = bfd_get_section_by_name (output_bfd, ".idata");
1459 asec->flags &= ~SEC_CODE;
1460 asec->flags |= SEC_DATA;
1466 /* Find the last output section before given output statement.
1467 Used by place_orphan. */
1470 output_prev_sec_find (os)
1471 lang_output_section_statement_type *os;
1473 asection *s = (asection *) NULL;
1474 lang_statement_union_type *u;
1475 lang_output_section_statement_type *lookup;
1477 for (u = lang_output_section_statement.head;
1478 u != (lang_statement_union_type *) NULL;
1481 lookup = &u->output_section_statement;
1485 if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL)
1486 s = lookup->bfd_section;
1492 /* Place an orphan section.
1494 We use this to put sections in a reasonable place in the file, and
1495 to ensure that they are aligned as required.
1497 We handle grouped sections here as well. A section named .foo$nn
1498 goes into the output section .foo. All grouped sections are sorted
1501 Grouped sections for the default sections are handled by the
1502 default linker script using wildcards, and are sorted by
1507 lang_output_section_statement_type *os;
1509 lang_statement_union_type **stmt;
1514 gld_${EMULATION_NAME}_place_orphan (file, s)
1515 lang_input_statement_type *file;
1518 const char *secname;
1519 char *hold_section_name;
1520 char *dollar = NULL;
1521 const char *ps = NULL;
1522 lang_output_section_statement_type *os;
1523 lang_statement_list_type add_child;
1525 secname = bfd_get_section_name (s->owner, s);
1527 /* Look through the script to see where to place this section. */
1529 hold_section_name = xstrdup (secname);
1530 if (!link_info.relocateable)
1532 dollar = strchr (hold_section_name, '$');
1537 os = lang_output_section_find (hold_section_name);
1539 lang_list_init (&add_child);
1542 && (os->bfd_section == NULL
1543 || ((s->flags ^ os->bfd_section->flags)
1544 & (SEC_LOAD | SEC_ALLOC)) == 0))
1546 /* We already have an output section statement with this
1547 name, and its bfd section, if any, has compatible flags. */
1548 lang_add_section (&add_child, s, os, file);
1552 struct orphan_save *place;
1553 static struct orphan_save hold_text;
1554 static struct orphan_save hold_rdata;
1555 static struct orphan_save hold_data;
1556 static struct orphan_save hold_bss;
1558 lang_statement_list_type *old;
1559 lang_statement_list_type add;
1560 etree_type *address;
1562 /* Try to put the new output section in a reasonable place based
1563 on the section name and section flags. */
1564 #define HAVE_SECTION(hold, name) \
1565 (hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL)
1568 if ((s->flags & SEC_ALLOC) == 0)
1570 else if ((s->flags & SEC_HAS_CONTENTS) == 0
1571 && HAVE_SECTION (hold_bss, ".bss"))
1573 else if ((s->flags & SEC_READONLY) == 0
1574 && HAVE_SECTION (hold_data, ".data"))
1576 else if ((s->flags & SEC_CODE) == 0
1577 && (s->flags & SEC_READONLY) != 0
1578 && HAVE_SECTION (hold_rdata, ".rdata"))
1579 place = &hold_rdata;
1580 else if ((s->flags & SEC_READONLY) != 0
1581 && HAVE_SECTION (hold_text, ".text"))
1586 /* Choose a unique name for the section. This will be needed if
1587 the same section name appears in the input file with
1588 different loadable or allocatable characteristics. */
1589 outsecname = xstrdup (hold_section_name);
1590 if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
1596 len = strlen (outsecname);
1597 newname = xmalloc (len + 5);
1598 strcpy (newname, outsecname);
1602 sprintf (newname + len, "%d", i);
1605 while (bfd_get_section_by_name (output_bfd, newname) != NULL);
1608 outsecname = newname;
1611 /* Start building a list of statements for this section. */
1614 lang_list_init (stat_ptr);
1616 if (config.build_constructors)
1618 /* If the name of the section is representable in C, then create
1619 symbols to mark the start and the end of the section. */
1620 for (ps = outsecname; *ps != '\0'; ps++)
1621 if (! isalnum ((unsigned char) *ps) && *ps != '_')
1626 etree_type *e_align;
1628 symname = (char *) xmalloc (ps - outsecname + sizeof "___start_");
1629 sprintf (symname, "___start_%s", outsecname);
1630 e_align = exp_unop (ALIGN_K,
1631 exp_intop ((bfd_vma) 1 << s->alignment_power));
1632 lang_add_assignment (exp_assop ('=', symname, e_align));
1636 if (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)
1637 address = exp_intop ((bfd_vma) 0);
1640 /* All sections in an executable must be aligned to a page
1642 address = exp_unop (ALIGN_K,
1643 exp_nameop (NAME, "__section_alignment__"));
1646 os = lang_enter_output_section_statement (outsecname, address, 0,
1648 (etree_type *) NULL,
1649 (etree_type *) NULL,
1650 (etree_type *) NULL);
1652 lang_add_section (&add_child, s, os, file);
1654 lang_leave_output_section_statement
1655 ((bfd_vma) 0, "*default*",
1656 (struct lang_output_section_phdr_list *) NULL, "*default*");
1658 if (config.build_constructors && *ps == '\0')
1662 /* lang_leave_ouput_section_statement resets stat_ptr. Put
1663 stat_ptr back where we want it. */
1667 symname = (char *) xmalloc (ps - outsecname + sizeof "___stop_");
1668 sprintf (symname, "___stop_%s", outsecname);
1669 lang_add_assignment (exp_assop ('=', symname,
1670 exp_nameop (NAME, ".")));
1677 asection *snew, **pps;
1679 snew = os->bfd_section;
1681 /* Shuffle the bfd section list to make the output file look
1682 neater. This is really only cosmetic. */
1683 if (place->section == NULL)
1685 asection *bfd_section = place->os->bfd_section;
1687 /* If the output statement hasn't been used to place
1688 any input sections (and thus doesn't have an output
1689 bfd_section), look for the closest prior output statement
1690 having an output section. */
1691 if (bfd_section == NULL)
1692 bfd_section = output_prev_sec_find (place->os);
1694 if (bfd_section != NULL && bfd_section != snew)
1695 place->section = &bfd_section->next;
1698 if (place->section != NULL)
1700 /* Unlink the section. */
1701 for (pps = &output_bfd->sections;
1703 pps = &(*pps)->next)
1707 /* Now tack it on to the "place->os" section list. */
1708 snew->next = *place->section;
1709 *place->section = snew;
1712 /* Save the end of this list. Further ophans of this type will
1713 follow the one we've just added. */
1714 place->section = &snew->next;
1716 /* The following is non-cosmetic. We try to put the output
1717 statements in some sort of reasonable order here, because
1718 they determine the final load addresses of the orphan
1719 sections. In addition, placing output statements in the
1720 wrong order may require extra segments. For instance,
1721 given a typical situation of all read-only sections placed
1722 in one segment and following that a segment containing all
1723 the read-write sections, we wouldn't want to place an orphan
1724 read/write section before or amongst the read-only ones. */
1725 if (add.head != NULL)
1727 if (place->stmt == NULL)
1729 /* Put the new statement list right at the head. */
1730 *add.tail = place->os->header.next;
1731 place->os->header.next = add.head;
1735 /* Put it after the last orphan statement we added. */
1736 *add.tail = *place->stmt;
1737 *place->stmt = add.head;
1740 /* Fix the global list pointer if we happened to tack our
1741 new list at the tail. */
1742 if (*old->tail == add.head)
1743 old->tail = add.tail;
1745 /* Save the end of this list. */
1746 place->stmt = add.tail;
1752 lang_statement_union_type **pl = &os->children.head;
1756 boolean found_dollar;
1758 /* The section name has a '$'. Sort it with the other '$'
1761 found_dollar = false;
1762 for ( ; *pl != NULL; pl = &(*pl)->header.next)
1764 lang_input_section_type *ls;
1767 if ((*pl)->header.type != lang_input_section_enum)
1770 ls = &(*pl)->input_section;
1772 lname = bfd_get_section_name (ls->ifile->the_bfd, ls->section);
1773 if (strchr (lname, '$') == NULL)
1780 found_dollar = true;
1781 if (strcmp (secname, lname) < 0)
1787 if (add_child.head != NULL)
1789 add_child.head->header.next = *pl;
1790 *pl = add_child.head;
1794 free (hold_section_name);
1800 gld_${EMULATION_NAME}_open_dynamic_archive (arch, search, entry)
1801 const char * arch ATTRIBUTE_UNUSED;
1802 search_dirs_type * search;
1803 lang_input_statement_type * entry;
1805 const char * filename;
1808 if (! entry->is_archive)
1811 filename = entry->filename;
1813 string = (char *) xmalloc (strlen (search->name)
1815 + sizeof "/lib.a.dll"
1817 + (pe_dll_search_prefix ? strlen (pe_dll_search_prefix) : 0)
1821 /* Try "libfoo.dll.a" first (preferred explicit import library for dll's */
1822 sprintf (string, "%s/lib%s.dll.a", search->name, filename);
1824 if (! ldfile_try_open_bfd (string, entry))
1826 /* Try "foo.dll.a" next (alternate explicit import library for dll's */
1827 sprintf (string, "%s/%s.dll.a", search->name, filename);
1828 if (! ldfile_try_open_bfd (string, entry))
1831 Try libfoo.a next. Normally, this would be interpreted as a static
1832 library, but it *could* be an import library. For backwards compatibility,
1833 libfoo.a needs to ==precede== libfoo.dll and foo.dll in the search,
1834 or sometimes errors occur when building legacy packages.
1836 Putting libfoo.a here means that in a failure case (i.e. the library
1837 -lfoo is not found) we will search for libfoo.a twice before
1838 giving up -- once here, and once when searching for a "static" lib.
1841 /* Try "libfoo.a" (import lib, or static lib, but must
1842 take precedence over dll's) */
1843 sprintf (string, "%s/lib%s.a", search->name, filename);
1844 if (! ldfile_try_open_bfd (string, entry))
1847 if (pe_dll_search_prefix)
1849 /* Try "<prefix>foo.dll" (preferred dll name, if specified) */
1850 sprintf (string, "%s/%s%s.dll", search->name, pe_dll_search_prefix, filename);
1851 if (! ldfile_try_open_bfd (string, entry))
1853 /* Try "libfoo.dll" (default preferred dll name) */
1854 sprintf (string, "%s/lib%s.dll", search->name, filename);
1855 if (! ldfile_try_open_bfd (string, entry))
1857 /* Finally, try "foo.dll" (alternate dll name) */
1858 sprintf (string, "%s/%s.dll", search->name, filename);
1859 if (! ldfile_try_open_bfd (string, entry))
1867 else /* pe_dll_search_prefix not specified */
1870 /* Try "libfoo.dll" (preferred dll name) */
1871 sprintf (string, "%s/lib%s.dll", search->name, filename);
1872 if (! ldfile_try_open_bfd (string, entry))
1874 /* Finally, try "foo.dll" (alternate dll name) */
1875 sprintf (string, "%s/%s.dll", search->name, filename);
1876 if (! ldfile_try_open_bfd (string, entry))
1887 entry->filename = string;
1893 gld_${EMULATION_NAME}_find_potential_libraries (name, entry)
1895 lang_input_statement_type * entry;
1897 return ldfile_open_file_search (name, entry, "", ".lib");
1901 gld_${EMULATION_NAME}_get_script(isfile)
1904 # Scripts compiled in.
1905 # sed commands to quote an ld script as a C string.
1906 sc="-f stringify.sed"
1908 cat >>e${EMULATION_NAME}.c <<EOF
1912 if (link_info.relocateable == true && config.build_constructors == true)
1915 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1916 echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
1917 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1918 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1919 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1920 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1921 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1922 echo ' ; else return' >> e${EMULATION_NAME}.c
1923 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1924 echo '; }' >> e${EMULATION_NAME}.c
1926 cat >>e${EMULATION_NAME}.c <<EOF
1929 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1931 gld_${EMULATION_NAME}_before_parse,
1934 gld_${EMULATION_NAME}_after_parse,
1935 gld_${EMULATION_NAME}_after_open,
1936 after_allocation_default,
1937 set_output_arch_default,
1938 ldemul_default_target,
1939 gld_${EMULATION_NAME}_before_allocation,
1940 gld_${EMULATION_NAME}_get_script,
1941 "${EMULATION_NAME}",
1943 gld_${EMULATION_NAME}_finish, /* finish */
1944 NULL, /* create output section statements */
1945 gld_${EMULATION_NAME}_open_dynamic_archive,
1946 gld_${EMULATION_NAME}_place_orphan,
1947 gld_${EMULATION_NAME}_set_symbols,
1948 gld_${EMULATION_NAME}_parse_args,
1949 gld_${EMULATION_NAME}_unrecognized_file,
1950 gld_${EMULATION_NAME}_list_options,
1951 gld_${EMULATION_NAME}_recognized_file,
1952 gld_${EMULATION_NAME}_find_potential_libraries