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${EMULATION_NAME}.c # there, now line numbers match ;-)
11 /* Copyright (C) 1995-2019 Free Software Foundation, Inc.
13 This file is part of the GNU Binutils.
15 This program is free software; you can redistribute it and/or modify
16 it under the terms of the GNU General Public License as published by
17 the Free Software Foundation; either version 3 of the License, or
18 (at your option) any later version.
20 This program is distributed in the hope that it will be useful,
21 but WITHOUT ANY WARRANTY; without even the implied warranty of
22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 GNU General Public License for more details.
25 You should have received a copy of the GNU General Public License
26 along with this program; if not, write to the Free Software
27 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
28 MA 02110-1301, USA. */
32 /* The original file generated returned different default scripts depending
33 on whether certain switches were set, but these switches pertain to the
34 Linux system and that particular version of coff. In the NT case, we
35 only determine if the subsystem is console or windows in order to select
36 the correct entry point by default. */
38 #define TARGET_IS_${EMULATION_NAME}
45 #include "libiberty.h"
46 #include "filenames.h"
57 #include "ldbuildid.h"
58 #include "coff/internal.h"
60 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
61 header in generic PE code. */
62 #include "coff/i386.h"
65 /* FIXME: These are BFD internal header files, and we should not be
67 #include "../bfd/libcoff.h"
68 #include "../bfd/libpei.h"
70 #if defined(TARGET_IS_armpe) \
71 || defined(TARGET_IS_arm_wince_pe)
72 #define bfd_arm_allocate_interworking_sections \
73 bfd_${EMULATION_NAME}_allocate_interworking_sections
74 #define bfd_arm_get_bfd_for_interworking \
75 bfd_${EMULATION_NAME}_get_bfd_for_interworking
76 #define bfd_arm_process_before_allocation \
77 bfd_${EMULATION_NAME}_process_before_allocation
83 #include "safe-ctype.h"
85 /* Permit the emulation parameters to override the default section
86 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
87 it seem that include/coff/internal.h should not define
88 PE_DEF_SECTION_ALIGNMENT. */
89 #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
90 #undef PE_DEF_SECTION_ALIGNMENT
91 #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
94 #if defined(TARGET_IS_i386pe) \
95 || defined(TARGET_IS_shpe) \
96 || defined(TARGET_IS_armpe) \
97 || defined(TARGET_IS_arm_wince_pe)
101 #if defined(TARGET_IS_i386pe)
102 #define DEFAULT_PSEUDO_RELOC_VERSION 2
104 #define DEFAULT_PSEUDO_RELOC_VERSION 1
107 #if defined(TARGET_IS_i386pe) || ! defined(DLL_SUPPORT)
108 #define PE_DEF_SUBSYSTEM 3
110 #undef NT_EXE_IMAGE_BASE
111 #undef PE_DEF_SECTION_ALIGNMENT
112 #undef PE_DEF_FILE_ALIGNMENT
113 #define NT_EXE_IMAGE_BASE 0x00010000
115 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
116 #define PE_DEF_SECTION_ALIGNMENT 0x00001000
117 #define PE_DEF_SUBSYSTEM 9
119 #define PE_DEF_SECTION_ALIGNMENT 0x00000400
120 #define PE_DEF_SUBSYSTEM 2
122 #define PE_DEF_FILE_ALIGNMENT 0x00000200
125 static struct internal_extra_pe_aouthdr pe;
127 static int pe_subsystem = ${SUBSYSTEM};
128 static flagword real_flags = 0;
129 static int support_old_code = 0;
130 static char * thumb_entry_symbol = NULL;
131 static lang_assignment_statement_type *image_base_statement = 0;
132 static unsigned short pe_dll_characteristics = 0;
133 static bfd_boolean insert_timestamp = TRUE;
134 static const char *emit_build_id;
137 static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */
138 static char *pe_out_def_filename = NULL;
139 static int pe_enable_auto_image_base = 0;
140 static unsigned long pe_auto_image_base = 0x61500000;
141 static char *pe_dll_search_prefix = NULL;
144 extern const char *output_filename;
146 static int is_underscoring (void)
149 if (pe_leading_underscore != -1)
150 return pe_leading_underscore;
151 if (!bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL))
152 bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL);
156 pe_leading_underscore = (u != 0 ? 1 : 0);
157 return pe_leading_underscore;
161 gld_${EMULATION_NAME}_before_parse (void)
164 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
165 output_filename = "${EXECUTABLE_NAME:-a.exe}";
167 input_flags.dynamic = TRUE;
168 config.has_shared = 1;
171 # Cygwin no longer wants these noisy warnings. Other PE
172 # targets might like to consider adding themselves here.
173 # See also the mail thread starting here for the reason why
174 # merge_rdata defaults to 0 for cygwin:
175 # http://cygwin.com/ml/cygwin-apps/2013-04/msg00187.html
178 default_auto_import=1
179 default_merge_rdata=0
181 i[3-7]86-*-mingw* | x86_64-*-mingw*)
182 default_auto_import=1
183 default_merge_rdata=0
186 default_auto_import=-1
187 default_merge_rdata=1
192 link_info.pei386_auto_import = ${default_auto_import};
193 /* Use by default version. */
194 link_info.pei386_runtime_pseudo_reloc = DEFAULT_PSEUDO_RELOC_VERSION;
198 /* Indicates if RDATA shall be merged into DATA when pseudo-relocation
199 version 2 is used and auto-import is enabled. */
200 #define MERGE_RDATA_V2 ${default_merge_rdata}
202 /* PE format extra command line options. */
204 /* Used for setting flags in the PE header. */
205 #define OPTION_BASE_FILE (300 + 1)
206 #define OPTION_DLL (OPTION_BASE_FILE + 1)
207 #define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1)
208 #define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1)
209 #define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1)
210 #define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1)
211 #define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1)
212 #define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
213 #define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1)
214 #define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1)
215 #define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
216 #define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1)
217 #define OPTION_SUBSYSTEM (OPTION_STACK + 1)
218 #define OPTION_HEAP (OPTION_SUBSYSTEM + 1)
219 #define OPTION_SUPPORT_OLD_CODE (OPTION_HEAP + 1)
220 #define OPTION_OUT_DEF (OPTION_SUPPORT_OLD_CODE + 1)
221 #define OPTION_EXPORT_ALL (OPTION_OUT_DEF + 1)
222 #define OPTION_EXCLUDE_SYMBOLS (OPTION_EXPORT_ALL + 1)
223 #define OPTION_EXCLUDE_ALL_SYMBOLS (OPTION_EXCLUDE_SYMBOLS + 1)
224 #define OPTION_KILL_ATS (OPTION_EXCLUDE_ALL_SYMBOLS + 1)
225 #define OPTION_STDCALL_ALIASES (OPTION_KILL_ATS + 1)
226 #define OPTION_ENABLE_STDCALL_FIXUP (OPTION_STDCALL_ALIASES + 1)
227 #define OPTION_DISABLE_STDCALL_FIXUP (OPTION_ENABLE_STDCALL_FIXUP + 1)
228 #define OPTION_THUMB_ENTRY (OPTION_DISABLE_STDCALL_FIXUP + 1)
229 #define OPTION_WARN_DUPLICATE_EXPORTS (OPTION_THUMB_ENTRY + 1)
230 #define OPTION_IMP_COMPAT (OPTION_WARN_DUPLICATE_EXPORTS + 1)
231 #define OPTION_ENABLE_AUTO_IMAGE_BASE (OPTION_IMP_COMPAT + 1)
232 #define OPTION_DISABLE_AUTO_IMAGE_BASE (OPTION_ENABLE_AUTO_IMAGE_BASE + 1)
233 #define OPTION_DLL_SEARCH_PREFIX (OPTION_DISABLE_AUTO_IMAGE_BASE + 1)
234 #define OPTION_NO_DEFAULT_EXCLUDES (OPTION_DLL_SEARCH_PREFIX + 1)
235 #define OPTION_DLL_ENABLE_AUTO_IMPORT (OPTION_NO_DEFAULT_EXCLUDES + 1)
236 #define OPTION_DLL_DISABLE_AUTO_IMPORT (OPTION_DLL_ENABLE_AUTO_IMPORT + 1)
237 #define OPTION_ENABLE_EXTRA_PE_DEBUG (OPTION_DLL_DISABLE_AUTO_IMPORT + 1)
238 #define OPTION_EXCLUDE_LIBS (OPTION_ENABLE_EXTRA_PE_DEBUG + 1)
239 #define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC \
240 (OPTION_EXCLUDE_LIBS + 1)
241 #define OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC \
242 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC + 1)
243 #define OPTION_LARGE_ADDRESS_AWARE (OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC + 1)
244 #define OPTION_DISABLE_LARGE_ADDRESS_AWARE \
245 (OPTION_LARGE_ADDRESS_AWARE + 1)
246 #define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1 \
247 (OPTION_DISABLE_LARGE_ADDRESS_AWARE + 1)
248 #define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2 \
249 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1 + 1)
250 #define OPTION_EXCLUDE_MODULES_FOR_IMPLIB \
251 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2 + 1)
252 #define OPTION_USE_NUL_PREFIXED_IMPORT_TABLES \
253 (OPTION_EXCLUDE_MODULES_FOR_IMPLIB + 1)
254 #define OPTION_NO_LEADING_UNDERSCORE (OPTION_USE_NUL_PREFIXED_IMPORT_TABLES + 1)
255 #define OPTION_LEADING_UNDERSCORE (OPTION_NO_LEADING_UNDERSCORE + 1)
256 #define OPTION_ENABLE_LONG_SECTION_NAMES \
257 (OPTION_LEADING_UNDERSCORE + 1)
258 #define OPTION_DISABLE_LONG_SECTION_NAMES \
259 (OPTION_ENABLE_LONG_SECTION_NAMES + 1)
260 /* DLLCharacteristics flags. */
261 #define OPTION_DYNAMIC_BASE (OPTION_DISABLE_LONG_SECTION_NAMES + 1)
262 #define OPTION_FORCE_INTEGRITY (OPTION_DYNAMIC_BASE + 1)
263 #define OPTION_NX_COMPAT (OPTION_FORCE_INTEGRITY + 1)
264 #define OPTION_NO_ISOLATION (OPTION_NX_COMPAT + 1)
265 #define OPTION_NO_SEH (OPTION_NO_ISOLATION + 1)
266 #define OPTION_NO_BIND (OPTION_NO_SEH + 1)
267 #define OPTION_WDM_DRIVER (OPTION_NO_BIND + 1)
268 #define OPTION_TERMINAL_SERVER_AWARE (OPTION_WDM_DRIVER + 1)
270 #define OPTION_INSERT_TIMESTAMP (OPTION_TERMINAL_SERVER_AWARE + 1)
271 #define OPTION_NO_INSERT_TIMESTAMP (OPTION_INSERT_TIMESTAMP + 1)
272 #define OPTION_BUILD_ID (OPTION_NO_INSERT_TIMESTAMP + 1)
275 gld${EMULATION_NAME}_add_options
276 (int ns ATTRIBUTE_UNUSED,
277 char **shortopts ATTRIBUTE_UNUSED,
279 struct option **longopts,
280 int nrl ATTRIBUTE_UNUSED,
281 struct option **really_longopts ATTRIBUTE_UNUSED)
283 static const struct option xtra_long[] =
286 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
287 {"dll", no_argument, NULL, OPTION_DLL},
288 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
289 {"heap", required_argument, NULL, OPTION_HEAP},
290 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
291 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
292 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
293 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
294 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
295 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
296 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
297 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
298 {"stack", required_argument, NULL, OPTION_STACK},
299 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
300 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
301 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
302 {"use-nul-prefixed-import-tables", no_argument, NULL,
303 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},
304 {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE},
305 {"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE},
306 {"insert-timestamp", no_argument, NULL, OPTION_INSERT_TIMESTAMP},
307 {"no-insert-timestamp", no_argument, NULL, OPTION_NO_INSERT_TIMESTAMP},
309 /* getopt allows abbreviations, so we do this to stop it
310 from treating -o as an abbreviation for this option. */
311 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
312 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
313 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
314 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
315 {"exclude-all-symbols", no_argument, NULL, OPTION_EXCLUDE_ALL_SYMBOLS},
316 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
317 {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB},
318 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
319 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
320 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
321 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
322 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
323 /* getopt() allows abbreviations, so we do this to stop it from
324 treating -c as an abbreviation for these --compat-implib. */
325 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
326 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
327 {"enable-auto-image-base", optional_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
328 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
329 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
330 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
331 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
332 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
333 {"enable-extra-pe-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
334 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
335 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
336 {"enable-runtime-pseudo-reloc-v1", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1},
337 {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2},
339 {"large-address-aware", no_argument, NULL, OPTION_LARGE_ADDRESS_AWARE},
340 {"disable-large-address-aware", no_argument, NULL, OPTION_DISABLE_LARGE_ADDRESS_AWARE},
341 {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES},
342 {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES},
343 {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE},
344 {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY},
345 {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT},
346 {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION},
347 {"no-seh", no_argument, NULL, OPTION_NO_SEH},
348 {"no-bind", no_argument, NULL, OPTION_NO_BIND},
349 {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
350 {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
351 {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
352 {NULL, no_argument, NULL, 0}
356 = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
357 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
360 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
361 parameters which may be input from the command line. */
370 /* FALSE for an assembly level symbol and TRUE for a C visible symbol.
371 C visible symbols can be prefixed by underscore dependent to target's
373 bfd_boolean is_c_symbol;
376 /* Get symbol name dependent to kind and C visible state of
378 #define GET_INIT_SYMBOL_NAME(IDX) \
379 (init[(IDX)].symbol \
380 + ((!init[(IDX)].is_c_symbol || is_underscoring () != 0) ? 0 : 1))
382 /* Decorates the C visible symbol by underscore, if target requires. */
384 ((is_underscoring () == 0) ? CSTR : "_" CSTR)
386 #define D(field,symbol,def,usc) {&pe.field, sizeof (pe.field), def, symbol, 0, usc}
388 static definfo init[] =
390 /* imagebase must be first */
391 #define IMAGEBASEOFF 0
392 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE, FALSE),
394 {&dll, sizeof(dll), 0, "__dll__", 0, FALSE},
395 #define MSIMAGEBASEOFF 2
396 D(ImageBase, "___ImageBase", NT_EXE_IMAGE_BASE, TRUE),
397 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT, FALSE),
398 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT, FALSE),
399 D(MajorOperatingSystemVersion,"__major_os_version__", 4, FALSE),
400 D(MinorOperatingSystemVersion,"__minor_os_version__", 0, FALSE),
401 D(MajorImageVersion,"__major_image_version__", 1, FALSE),
402 D(MinorImageVersion,"__minor_image_version__", 0, FALSE),
403 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
404 D(MajorSubsystemVersion,"__major_subsystem_version__", 3, FALSE),
406 D(MajorSubsystemVersion,"__major_subsystem_version__", 4, FALSE),
408 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0, FALSE),
409 D(Subsystem,"__subsystem__", ${SUBSYSTEM}, FALSE),
410 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, FALSE),
411 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, FALSE),
412 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, FALSE),
413 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, FALSE),
414 D(LoaderFlags,"__loader_flags__", 0x0, FALSE),
415 D(DllCharacteristics, "__dll_characteristics__", 0x0, FALSE),
416 { NULL, 0, 0, NULL, 0 , FALSE}
421 gld_${EMULATION_NAME}_list_options (FILE *file)
423 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
424 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
425 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
426 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
427 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
428 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
429 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
430 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
431 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
432 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
433 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
434 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
435 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
436 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
437 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
438 fprintf (file, _(" --[no-]leading-underscore Set explicit symbol underscore prefix mode\n"));
439 fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n"));
440 fprintf (file, _(" --[no-]insert-timestamp Use a real timestamp rather than zero (default).\n"));
441 fprintf (file, _(" This makes binaries non-deterministic\n"));
443 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
444 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
445 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
446 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
447 fprintf (file, _(" --exclude-all-symbols Exclude all symbols from automatic export\n"));
448 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
449 fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n"));
450 fprintf (file, _(" Exclude objects, archive members from auto\n"));
451 fprintf (file, _(" export, place into import library instead.\n"));
452 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
453 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
454 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
455 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports\n"));
456 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
457 create __imp_<SYMBOL> as well.\n"));
458 fprintf (file, _(" --enable-auto-image-base[=<address>] Automatically choose image base for DLLs\n\
459 (optionally starting with address) unless\n\
460 specifically set with --image-base\n"));
461 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));
462 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\
463 an importlib, use <string><basename>.dll\n\
464 in preference to lib<basename>.dll \n"));
465 fprintf (file, _(" --enable-auto-import Do sophisticated linking of _sym to\n\
466 __imp_sym for DATA references\n"));
467 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
468 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\
469 adding pseudo-relocations resolved at\n\
471 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\
472 auto-imported DATA.\n"));
473 fprintf (file, _(" --enable-extra-pe-debug Enable verbose debug output when building\n\
474 or linking to DLLs (esp. auto-import)\n"));
476 fprintf (file, _(" --large-address-aware Executable supports virtual addresses\n\
477 greater than 2 gigabytes\n"));
478 fprintf (file, _(" --disable-large-address-aware Executable does not support virtual\n\
479 addresses greater than 2 gigabytes\n"));
480 fprintf (file, _(" --enable-long-section-names Use long COFF section names even in\n\
481 executable image files\n"));
482 fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\
483 in object files\n"));
484 fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\
485 address space layout randomization (ASLR)\n"));
486 fprintf (file, _(" --forceinteg Code integrity checks are enforced\n"));
487 fprintf (file, _(" --nxcompat Image is compatible with data execution prevention\n"));
488 fprintf (file, _(" --no-isolation Image understands isolation but do not isolate the image\n"));
489 fprintf (file, _(" --no-seh Image does not use SEH. No SE handler may\n\
490 be called in this image\n"));
491 fprintf (file, _(" --no-bind Do not bind this image\n"));
492 fprintf (file, _(" --wdmdriver Driver uses the WDM model\n"));
493 fprintf (file, _(" --tsaware Image is Terminal Server aware\n"));
494 fprintf (file, _(" --build-id[=STYLE] Generate build ID\n"));
499 set_pe_name (char *name, long val)
504 /* Find the name and set it. */
505 for (i = 0; init[i].ptr; i++)
507 if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0)
511 if (strcmp (name,"__image_base__") == 0)
512 set_pe_name (U ("__ImageBase"), val);
520 set_entry_point (void)
523 const char *initial_symbol_char;
533 { 1, "NtProcessStartup" },
534 { 2, "WinMainCRTStartup" },
535 { 3, "mainCRTStartup" },
536 { 7, "__PosixProcessStartup"},
537 { 9, "WinMainCRTStartup" },
538 {14, "mainCRTStartup" },
542 /* Entry point name for arbitrary subsystem numbers. */
543 static const char default_entry[] = "mainCRTStartup";
545 if (bfd_link_pic (&link_info) || dll)
547 #if defined (TARGET_IS_i386pe)
548 entry = "DllMainCRTStartup@12";
550 entry = "DllMainCRTStartup";
555 for (i = 0; v[i].entry; i++)
556 if (v[i].value == pe_subsystem)
559 /* If no match, use the default. */
560 if (v[i].entry != NULL)
563 entry = default_entry;
566 initial_symbol_char = (is_underscoring () != 0 ? "_" : "");
568 if (*initial_symbol_char != '\0')
572 /* lang_default_entry expects its argument to be permanently
573 allocated, so we don't free this string. */
574 alc_entry = xmalloc (strlen (initial_symbol_char)
577 strcpy (alc_entry, initial_symbol_char);
578 strcat (alc_entry, entry);
582 lang_default_entry (entry);
586 set_pe_subsystem (void)
592 unsigned long temp_subsystem;
609 /* Check for the presence of a version number. */
610 sver = strchr (optarg, ':');
612 len = strlen (optarg);
616 set_pe_name ("__major_subsystem_version__",
617 strtoul (sver + 1, &end, 0));
619 set_pe_name ("__minor_subsystem_version__",
620 strtoul (end + 1, &end, 0));
622 einfo (_("%P: warning: bad version number in -subsystem option\n"));
625 /* Check for numeric subsystem. */
626 temp_subsystem = strtoul (optarg, & end, 0);
627 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
629 /* Search list for a numeric match to use its entry point. */
630 for (i = 0; v[i].name; i++)
631 if (v[i].value == (int) temp_subsystem)
634 /* Use this subsystem. */
635 pe_subsystem = (int) temp_subsystem;
639 /* Search for subsystem by name. */
640 for (i = 0; v[i].name; i++)
641 if (strncmp (optarg, v[i].name, len) == 0
642 && v[i].name[len] == '\0')
645 if (v[i].name == NULL)
647 einfo (_("%F%P: invalid subsystem type %s\n"), optarg);
651 pe_subsystem = v[i].value;
654 set_pe_name ("__subsystem__", pe_subsystem);
661 set_pe_value (char *name)
665 set_pe_name (name, strtoul (optarg, &end, 0));
668 einfo (_("%F%P: invalid hex number for PE parameter '%s'\n"), optarg);
675 set_pe_stack_heap (char *resname, char *comname)
677 set_pe_value (resname);
682 set_pe_value (comname);
685 einfo (_("%F%P: strange hex info for PE parameter '%s'\n"), optarg);
688 #define DEFAULT_BUILD_ID_STYLE "md5"
691 gld${EMULATION_NAME}_handle_option (int optc)
698 case OPTION_BASE_FILE:
699 link_info.base_file = fopen (optarg, FOPEN_WB);
700 if (link_info.base_file == NULL)
701 einfo (_("%F%P: cannot open base file %s\n"), optarg);
706 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
709 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
711 case OPTION_SUBSYSTEM:
714 case OPTION_MAJOR_OS_VERSION:
715 set_pe_value ("__major_os_version__");
717 case OPTION_MINOR_OS_VERSION:
718 set_pe_value ("__minor_os_version__");
720 case OPTION_MAJOR_SUBSYSTEM_VERSION:
721 set_pe_value ("__major_subsystem_version__");
723 case OPTION_MINOR_SUBSYSTEM_VERSION:
724 set_pe_value ("__minor_subsystem_version__");
726 case OPTION_MAJOR_IMAGE_VERSION:
727 set_pe_value ("__major_image_version__");
729 case OPTION_MINOR_IMAGE_VERSION:
730 set_pe_value ("__minor_image_version__");
732 case OPTION_FILE_ALIGNMENT:
733 set_pe_value ("__file_alignment__");
735 case OPTION_SECTION_ALIGNMENT:
736 set_pe_value ("__section_alignment__");
739 set_pe_name ("__dll__", 1);
741 case OPTION_IMAGE_BASE:
742 set_pe_value ("__image_base__");
744 case OPTION_SUPPORT_OLD_CODE:
745 support_old_code = 1;
747 case OPTION_THUMB_ENTRY:
748 thumb_entry_symbol = optarg;
750 case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
751 pe_use_nul_prefixed_import_tables = TRUE;
753 case OPTION_NO_LEADING_UNDERSCORE:
754 pe_leading_underscore = 0;
756 case OPTION_LEADING_UNDERSCORE:
757 pe_leading_underscore = 1;
759 case OPTION_INSERT_TIMESTAMP:
760 insert_timestamp = TRUE;
762 case OPTION_NO_INSERT_TIMESTAMP:
763 insert_timestamp = FALSE;
767 pe_out_def_filename = xstrdup (optarg);
769 case OPTION_EXPORT_ALL:
770 pe_dll_export_everything = 1;
772 case OPTION_EXCLUDE_SYMBOLS:
773 pe_dll_add_excludes (optarg, EXCLUDESYMS);
775 case OPTION_EXCLUDE_ALL_SYMBOLS:
776 pe_dll_exclude_all_symbols = 1;
778 case OPTION_EXCLUDE_LIBS:
779 pe_dll_add_excludes (optarg, EXCLUDELIBS);
781 case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
782 pe_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
784 case OPTION_KILL_ATS:
787 case OPTION_STDCALL_ALIASES:
788 pe_dll_stdcall_aliases = 1;
790 case OPTION_ENABLE_STDCALL_FIXUP:
791 pe_enable_stdcall_fixup = 1;
793 case OPTION_DISABLE_STDCALL_FIXUP:
794 pe_enable_stdcall_fixup = 0;
796 case OPTION_WARN_DUPLICATE_EXPORTS:
797 pe_dll_warn_dup_exports = 1;
799 case OPTION_IMP_COMPAT:
800 pe_dll_compat_implib = 1;
802 case OPTION_ENABLE_AUTO_IMAGE_BASE:
803 pe_enable_auto_image_base = 1;
804 if (optarg && *optarg)
807 pe_auto_image_base = strtoul (optarg, &end, 0);
808 /* XXX should check that we actually parsed something */
811 case OPTION_DISABLE_AUTO_IMAGE_BASE:
812 pe_enable_auto_image_base = 0;
814 case OPTION_DLL_SEARCH_PREFIX:
815 pe_dll_search_prefix = xstrdup (optarg);
817 case OPTION_NO_DEFAULT_EXCLUDES:
818 pe_dll_do_default_excludes = 0;
820 case OPTION_DLL_ENABLE_AUTO_IMPORT:
821 link_info.pei386_auto_import = 1;
823 case OPTION_DLL_DISABLE_AUTO_IMPORT:
824 link_info.pei386_auto_import = 0;
826 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
827 link_info.pei386_runtime_pseudo_reloc =
828 DEFAULT_PSEUDO_RELOC_VERSION;
830 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1:
831 link_info.pei386_runtime_pseudo_reloc = 1;
833 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
834 link_info.pei386_runtime_pseudo_reloc = 2;
836 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
837 link_info.pei386_runtime_pseudo_reloc = 0;
839 case OPTION_ENABLE_EXTRA_PE_DEBUG:
840 pe_dll_extra_pe_debug = 1;
843 case OPTION_LARGE_ADDRESS_AWARE:
844 real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
846 case OPTION_DISABLE_LARGE_ADDRESS_AWARE:
847 real_flags &= ~ IMAGE_FILE_LARGE_ADDRESS_AWARE;
849 case OPTION_ENABLE_LONG_SECTION_NAMES:
850 pe_use_coff_long_section_names = 1;
852 case OPTION_DISABLE_LONG_SECTION_NAMES:
853 pe_use_coff_long_section_names = 0;
855 /* Get DLLCharacteristics bits */
856 case OPTION_DYNAMIC_BASE:
857 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
859 case OPTION_FORCE_INTEGRITY:
860 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY;
862 case OPTION_NX_COMPAT:
863 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
865 case OPTION_NO_ISOLATION:
866 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
869 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH;
872 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND;
874 case OPTION_WDM_DRIVER:
875 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER;
877 case OPTION_TERMINAL_SERVER_AWARE:
878 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
880 case OPTION_BUILD_ID:
881 if (emit_build_id != NULL)
883 free ((char *) emit_build_id);
884 emit_build_id = NULL;
887 optarg = DEFAULT_BUILD_ID_STYLE;
888 if (strcmp (optarg, "none"))
889 emit_build_id = xstrdup (optarg);
893 /* Set DLLCharacteristics bits */
894 set_pe_name ("__dll_characteristics__", pe_dll_characteristics);
902 strhash (const char *str)
904 const unsigned char *s;
911 s = (const unsigned char *) str;
912 while ((c = *s++) != '\0')
914 hash += c + (c << 17);
918 hash += len + (len << 17);
924 /* Use the output file to create a image base for relocatable DLLs. */
927 compute_dll_image_base (const char *ofile)
929 unsigned long hash = strhash (ofile);
930 return pe_auto_image_base + ((hash << 16) & 0x0FFC0000);
934 /* Assign values to the special symbols before the linker script is
938 gld_${EMULATION_NAME}_set_symbols (void)
940 /* Run through and invent symbols for all the
941 names and insert the defaults. */
946 if (!init[IMAGEBASEOFF].inited)
948 if (bfd_link_relocatable (&link_info))
949 init[IMAGEBASEOFF].value = 0;
950 else if (init[DLLOFF].value || bfd_link_dll (&link_info))
953 init[IMAGEBASEOFF].value = (pe_enable_auto_image_base
954 ? compute_dll_image_base (output_filename)
955 : NT_DLL_IMAGE_BASE);
957 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
961 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
962 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
965 /* Don't do any symbol assignments if this is a relocatable link. */
966 if (bfd_link_relocatable (&link_info))
969 /* Glue the assignments into the abs section. */
970 push_stat_ptr (&abs_output_section->children);
972 for (j = 0; init[j].ptr; j++)
974 long val = init[j].value;
975 lang_assignment_statement_type *rv;
977 rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j),
978 exp_intop (val), FALSE));
979 if (init[j].size == sizeof (short))
980 *(short *) init[j].ptr = val;
981 else if (init[j].size == sizeof (int))
982 *(int *) init[j].ptr = val;
983 else if (init[j].size == sizeof (long))
984 *(long *) init[j].ptr = val;
985 /* This might be a long long or other special type. */
986 else if (init[j].size == sizeof (bfd_vma))
987 *(bfd_vma *) init[j].ptr = val;
989 if (j == IMAGEBASEOFF)
990 image_base_statement = rv;
992 /* Restore the pointer. */
995 if (pe.FileAlignment > pe.SectionAlignment)
997 einfo (_("%P: warning, file alignment > section alignment\n"));
1001 /* This is called after the linker script and the command line options
1005 gld_${EMULATION_NAME}_after_parse (void)
1007 /* PR ld/6744: Warn the user if they have used an ELF-only
1008 option hoping it will work on PE. */
1009 if (link_info.export_dynamic)
1010 einfo (_("%P: warning: --export-dynamic is not supported for PE "
1011 "targets, did you mean --export-all-symbols?\n"));
1015 after_parse_default ();
1019 static struct bfd_link_hash_entry *pe_undef_found_sym;
1022 pe_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
1026 const char *hs = h->root.string;
1028 sl = strlen (string);
1029 if (h->type == bfd_link_hash_defined
1030 && ((*hs == '@' && *string == '_'
1031 && strncmp (hs + 1, string + 1, sl - 1) == 0)
1032 || strncmp (hs, string, sl) == 0)
1033 && h->root.string[sl] == '@')
1035 pe_undef_found_sym = h;
1041 /* Change UNDEF to a defined symbol, taking data from SYM. */
1044 change_undef (struct bfd_link_hash_entry * undef,
1045 struct bfd_link_hash_entry * sym)
1047 static bfd_boolean gave_warning_message = FALSE;
1049 undef->type = bfd_link_hash_defined;
1050 undef->u.def.value = sym->u.def.value;
1051 undef->u.def.section = sym->u.def.section;
1053 if (pe_enable_stdcall_fixup == -1)
1055 einfo (_("%P: warning: resolving %s by linking to %s\n"),
1056 undef->root.string, sym->root.string);
1058 if (! gave_warning_message)
1060 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1061 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1062 gave_warning_message = TRUE;
1066 /* PR 19803: Make sure that the linked symbol is not garbage collected. */
1067 lang_add_gc_name (sym->root.string);
1071 pe_fixup_stdcalls (void)
1073 struct bfd_link_hash_entry *undef, *sym;
1075 if (pe_dll_extra_pe_debug)
1076 printf ("%s\n", __FUNCTION__);
1078 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
1079 if (undef->type == bfd_link_hash_undefined)
1081 const char * name = undef->root.string;
1083 int lead_at = (*name == '@');
1086 at = strchr (name + 1, '@');
1088 at = strchr (name, '@');
1092 /* The symbol is a stdcall symbol, so let's look for a
1093 cdecl symbol with the same name and resolve to that. */
1094 char *cname = xstrdup (name);
1099 * strchr (cname, '@') = 0;
1100 sym = bfd_link_hash_lookup (link_info.hash, cname, FALSE, FALSE, TRUE);
1102 if (sym && sym->type == bfd_link_hash_defined)
1103 change_undef (undef, sym);
1107 /* The symbol is a cdecl symbol, so we look for stdcall
1108 symbols - which means scanning the whole symbol table. */
1109 pe_undef_found_sym = NULL;
1110 bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
1112 if (pe_undef_found_sym)
1113 change_undef (undef, pe_undef_found_sym);
1119 make_import_fixup (arelent *rel, asection *s, char *name, const char *symname)
1121 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
1125 if (pe_dll_extra_pe_debug)
1126 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
1127 (unsigned long) rel->address, (long) rel->addend);
1129 if (! bfd_get_section_contents (s->owner, s, addend, rel->address, sizeof (addend)))
1130 einfo (_("%P: %C: cannot get section contents - auto-import exception\n"),
1131 s->owner, s, rel->address);
1133 _addend = bfd_get_32 (s->owner, addend);
1134 pe_create_import_fixup (rel, s, _addend, name, symname);
1138 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
1140 printf ("+%s\n", h->string);
1144 #endif /* DLL_SUPPORT */
1147 debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
1149 int *found = (int *) obj;
1150 if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
1155 pecoff_checksum_contents (bfd *abfd,
1156 void (*process) (const void *, size_t, void *),
1159 file_ptr filepos = (file_ptr) 0;
1166 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
1169 status = bfd_bread (&b, (bfd_size_type) 1, abfd);
1175 (*process) (&b, 1, arg);
1183 write_build_id (bfd *abfd)
1185 struct pe_tdata *t = pe_data (abfd);
1187 struct bfd_link_order *link_order = NULL;
1188 unsigned char *contents;
1190 bfd_size_type build_id_size;
1191 unsigned char *build_id;
1193 /* Find the section the .buildid output section has been merged info. */
1194 for (asec = abfd->sections; asec != NULL; asec = asec->next)
1196 struct bfd_link_order *l = NULL;
1197 for (l = asec->map_head.link_order; l != NULL; l = l->next)
1199 if (l->type == bfd_indirect_link_order)
1201 if (l->u.indirect.section == t->build_id.sec)
1215 einfo (_("%P: warning: .buildid section discarded,"
1216 " --build-id ignored\n"));
1220 if (t->build_id.sec->contents == NULL)
1221 t->build_id.sec->contents = (unsigned char *) xmalloc (t->build_id.sec->size);
1222 contents = t->build_id.sec->contents;
1223 size = t->build_id.sec->size;
1225 build_id_size = compute_build_id_size (t->build_id.style);
1226 build_id = xmalloc (build_id_size);
1227 generate_build_id (abfd, t->build_id.style, pecoff_checksum_contents, build_id, build_id_size);
1229 bfd_vma ib = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase;
1231 /* Construct a debug directory entry which points to an immediately following CodeView record. */
1232 struct internal_IMAGE_DEBUG_DIRECTORY idd;
1233 idd.Characteristics = 0;
1234 idd.TimeDateStamp = 0;
1235 idd.MajorVersion = 0;
1236 idd.MinorVersion = 0;
1237 idd.Type = PE_IMAGE_DEBUG_TYPE_CODEVIEW;
1238 idd.SizeOfData = sizeof (CV_INFO_PDB70) + 1;
1239 idd.AddressOfRawData = asec->vma - ib + link_order->offset
1240 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1241 idd.PointerToRawData = asec->filepos + link_order->offset
1242 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1244 struct external_IMAGE_DEBUG_DIRECTORY *ext = (struct external_IMAGE_DEBUG_DIRECTORY *)contents;
1245 _bfd_XXi_swap_debugdir_out (abfd, &idd, ext);
1247 /* Write the debug directory entry. */
1248 if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0)
1251 if (bfd_bwrite (contents, size, abfd) != size)
1254 /* Construct the CodeView record. */
1255 CODEVIEW_INFO cvinfo;
1256 cvinfo.CVSignature = CVINFO_PDB70_CVSIGNATURE;
1259 /* Zero pad or truncate the generated build_id to fit in the CodeView record. */
1260 memset (&(cvinfo.Signature), 0, CV_INFO_SIGNATURE_LENGTH);
1261 memcpy (&(cvinfo.Signature), build_id, (build_id_size > CV_INFO_SIGNATURE_LENGTH)
1262 ? CV_INFO_SIGNATURE_LENGTH : build_id_size);
1266 /* Write the codeview record. */
1267 if (_bfd_XXi_write_codeview_record (abfd, idd.PointerToRawData, &cvinfo) == 0)
1270 /* Record the location of the debug directory in the data directory. */
1271 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress
1272 = asec->vma - ib + link_order->offset;
1273 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size
1274 = sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1279 /* Make .buildid section, and set up coff_tdata->build_id. */
1281 setup_build_id (bfd *ibfd)
1286 if (!validate_build_id_style (emit_build_id))
1288 einfo (_("%P: warning: unrecognized --build-id style ignored\n"));
1292 flags = (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
1293 | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
1294 s = bfd_make_section_anyway_with_flags (ibfd, ".buildid", flags);
1297 struct pe_tdata *t = pe_data (link_info.output_bfd);
1298 t->build_id.after_write_object_contents = &write_build_id;
1299 t->build_id.style = emit_build_id;
1300 t->build_id.sec = s;
1302 /* Section is a fixed size:
1303 One IMAGE_DEBUG_DIRECTORY entry, of type IMAGE_DEBUG_TYPE_CODEVIEW,
1304 pointing at a CV_INFO_PDB70 record containing the build-id, with a
1305 null byte for PdbFileName. */
1306 s->size = sizeof (struct external_IMAGE_DEBUG_DIRECTORY)
1307 + sizeof (CV_INFO_PDB70) + 1;
1312 einfo (_("%P: warning: cannot create .buildid section,"
1313 " --build-id ignored\n"));
1318 gld_${EMULATION_NAME}_after_open (void)
1320 after_open_default ();
1323 if (pe_dll_extra_pe_debug)
1326 struct bfd_link_hash_entry *sym;
1328 printf ("%s()\n", __FUNCTION__);
1330 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1331 printf ("-%s\n", sym->root.string);
1332 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1334 for (a = link_info.input_bfds; a; a = a->link.next)
1335 printf ("*%s\n",a->filename);
1339 if (emit_build_id != NULL)
1343 /* Find a COFF input. */
1344 for (abfd = link_info.input_bfds;
1345 abfd != (bfd *) NULL; abfd = abfd->link.next)
1346 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
1349 /* If there are no COFF input files do not try to
1350 add a build-id section. */
1352 || !setup_build_id (abfd))
1354 free ((char *) emit_build_id);
1355 emit_build_id = NULL;
1359 /* Pass the wacky PE command line options into the output bfd.
1360 FIXME: This should be done via a function, rather than by
1361 including an internal BFD header. */
1363 if (bfd_get_flavour (link_info.output_bfd) != bfd_target_coff_flavour
1364 || coff_data (link_info.output_bfd) == NULL
1365 || coff_data (link_info.output_bfd)->pe == 0)
1366 einfo (_("%F%P: cannot perform PE operations on non PE output file '%pB'\n"),
1367 link_info.output_bfd);
1369 pe_data (link_info.output_bfd)->pe_opthdr = pe;
1370 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1371 pe_data (link_info.output_bfd)->real_flags |= real_flags;
1372 pe_data (link_info.output_bfd)->insert_timestamp = insert_timestamp;
1374 /* At this point we must decide whether to use long section names
1375 in the output or not. If the user hasn't explicitly specified
1376 on the command line, we leave it to the default for the format
1377 (object files yes, image files no), except if there is debug
1378 information present; GDB relies on the long section names to
1379 find it, so enable it in that case. */
1380 if (pe_use_coff_long_section_names < 0 && link_info.strip == strip_none)
1382 if (bfd_link_relocatable (&link_info))
1383 pe_use_coff_long_section_names = 1;
1386 /* Iterate over all sections of all input BFDs, checking
1387 for any that begin 'debug_' and are long names. */
1388 LANG_FOR_EACH_INPUT_STATEMENT (is)
1390 int found_debug = 0;
1392 bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
1395 pe_use_coff_long_section_names = 1;
1402 pe_output_file_set_long_section_names (link_info.output_bfd);
1405 pe_process_import_defs (link_info.output_bfd, &link_info);
1407 if (link_info.pei386_auto_import) /* -1=warn or 1=enable */
1408 pe_find_data_imports (U ("_head_"), make_import_fixup);
1410 /* The implementation of the feature is rather dumb and would cause the
1411 compilation time to go through the roof if there are many undefined
1412 symbols in the link, so it needs to be run after auto-import. */
1413 if (pe_enable_stdcall_fixup) /* -1=warn or 1=enable */
1414 pe_fixup_stdcalls ();
1416 #if defined (TARGET_IS_i386pe) \
1417 || defined (TARGET_IS_armpe) \
1418 || defined (TARGET_IS_arm_wince_pe)
1419 if (!bfd_link_relocatable (&link_info))
1420 pe_dll_build_sections (link_info.output_bfd, &link_info);
1422 if (bfd_link_pic (&link_info))
1423 pe_dll_build_sections (link_info.output_bfd, &link_info);
1425 pe_exe_build_sections (link_info.output_bfd, &link_info);
1427 #endif /* DLL_SUPPORT */
1429 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
1430 if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
1432 /* The arm backend needs special fields in the output hash structure.
1433 These will only be created if the output format is an arm format,
1434 hence we do not support linking and changing output formats at the
1435 same time. Use a link followed by objcopy to change output formats. */
1436 einfo (_("%F%P: error: cannot change output format "
1437 "whilst linking %s binaries\n"), "ARM");
1441 /* Find a BFD that can hold the interworking stubs. */
1442 LANG_FOR_EACH_INPUT_STATEMENT (is)
1444 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
1451 /* This next chunk of code tries to detect the case where you have
1452 two import libraries for the same DLL (specifically,
1453 symbolically linking libm.a and libc.a in cygwin to
1454 libcygwin.a). In those cases, it's possible for function
1455 thunks from the second implib to be used but without the
1456 head/tail objects, causing an improper import table. We detect
1457 those cases and rename the "other" import libraries to match
1458 the one the head/tail come from, so that the linker will sort
1459 things nicely and produce a valid import table. */
1461 LANG_FOR_EACH_INPUT_STATEMENT (is)
1463 if (is->the_bfd->my_archive)
1465 int idata2 = 0, reloc_count=0, is_imp = 0;
1468 /* See if this is an import library thunk. */
1469 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1471 if (strcmp (sec->name, ".idata\$2") == 0)
1473 if (CONST_STRNEQ (sec->name, ".idata\$"))
1475 reloc_count += sec->reloc_count;
1478 if (is_imp && !idata2 && reloc_count)
1480 /* It is, look for the reference to head and see if it's
1481 from our own library. */
1482 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1490 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1494 if (!bfd_generic_link_read_symbols (is->the_bfd))
1496 einfo (_("%F%P: %pB: could not read symbols: %E\n"),
1500 symbols = bfd_get_outsymbols (is->the_bfd);
1502 relocs = xmalloc ((size_t) relsize);
1503 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1508 einfo (_("%X%P: unable to process relocs: %E\n"));
1512 for (i = 0; i < nrelocs; i++)
1514 struct bfd_symbol *s;
1515 struct bfd_link_hash_entry * blhe;
1516 const char *other_bfd_filename;
1519 s = (relocs[i]->sym_ptr_ptr)[0];
1521 if (s->flags & BSF_LOCAL)
1524 /* Thunk section with reloc to another bfd. */
1525 blhe = bfd_link_hash_lookup (link_info.hash,
1527 FALSE, FALSE, TRUE);
1530 || blhe->type != bfd_link_hash_defined)
1534 = blhe->u.def.section->owner->my_archive
1535 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1536 : bfd_get_filename (blhe->u.def.section->owner);
1538 if (filename_cmp (bfd_get_filename
1539 (is->the_bfd->my_archive),
1540 other_bfd_filename) == 0)
1543 /* Rename this implib to match the other one. */
1544 n = xmalloc (strlen (other_bfd_filename) + 1);
1545 strcpy (n, other_bfd_filename);
1546 bfd_set_filename (is->the_bfd->my_archive, n);
1550 /* Note - we do not free the symbols,
1551 they are now cached in the BFD. */
1561 lang_input_statement_type *is2;
1562 lang_input_statement_type *is3;
1564 /* Careful - this is a shell script. Watch those dollar signs! */
1565 /* Microsoft import libraries have every member named the same,
1566 and not in the right order for us to link them correctly. We
1567 must detect these and rename the members so that they'll link
1568 correctly. There are three types of objects: the head, the
1569 thunks, and the sentinel(s). The head is easy; it's the one
1570 with idata2. We assume that the sentinels won't have relocs,
1571 and the thunks will. It's easier than checking the symbol
1572 table for external references. */
1573 LANG_FOR_EACH_INPUT_STATEMENT (is)
1575 if (is->the_bfd->my_archive)
1578 bfd *arch = is->the_bfd->my_archive;
1580 if (cur_arch != arch)
1586 is3 && is3->the_bfd->my_archive == arch;
1587 is3 = (lang_input_statement_type *) is3->next)
1589 /* A MS dynamic import library can also contain static
1590 members, so look for the first element with a .dll
1591 extension, and use that for the remainder of the
1593 pnt = strrchr (is3->the_bfd->filename, '.');
1594 if (pnt != NULL && filename_cmp (pnt, ".dll") == 0)
1602 /* OK, found one. Now look to see if the remaining
1603 (dynamic import) members use the same name. */
1605 is2 && is2->the_bfd->my_archive == arch;
1606 is2 = (lang_input_statement_type *) is2->next)
1608 /* Skip static members, ie anything with a .obj
1610 pnt = strrchr (is2->the_bfd->filename, '.');
1611 if (pnt != NULL && filename_cmp (pnt, ".obj") == 0)
1614 if (filename_cmp (is3->the_bfd->filename,
1615 is2->the_bfd->filename))
1624 /* This fragment might have come from an .obj file in a Microsoft
1625 import, and not an actual import record. If this is the case,
1626 then leave the filename alone. */
1627 pnt = strrchr (is->the_bfd->filename, '.');
1629 if (is_ms_arch && (filename_cmp (pnt, ".dll") == 0))
1631 int idata2 = 0, reloc_count=0;
1633 char *new_name, seq;
1635 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1637 if (strcmp (sec->name, ".idata\$2") == 0)
1639 reloc_count += sec->reloc_count;
1642 if (idata2) /* .idata2 is the TOC */
1644 else if (reloc_count > 0) /* thunks */
1649 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1650 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1651 bfd_set_filename (is->the_bfd, new_name);
1653 new_name = xmalloc (strlen (is->filename) + 3);
1654 sprintf (new_name, "%s.%c", is->filename, seq);
1655 is->filename = new_name;
1662 /* The following chunk of code tries to identify jump stubs in
1663 import libraries which are dead code and eliminates them
1664 from the final link. For each exported symbol <sym>, there
1665 is a object file in the import library with a .text section
1666 and several .idata\$* sections. The .text section contains the
1667 symbol definition for <sym> which is a jump stub of the form
1668 jmp *__imp_<sym>. The .idata\$5 contains the symbol definition
1669 for __imp_<sym> which is the address of the slot for <sym> in
1670 the import address table. When a symbol is imported explicitly
1671 using __declspec(dllimport) declaration, the compiler generates
1672 a reference to __imp_<sym> which directly resolves to the
1673 symbol in .idata\$5, in which case the jump stub code is not
1674 needed. The following code tries to identify jump stub sections
1675 in import libraries which are not referred to by anyone and
1676 marks them for exclusion from the final link. */
1677 LANG_FOR_EACH_INPUT_STATEMENT (is)
1679 if (is->the_bfd->my_archive)
1682 asection *sec, *stub_sec = NULL;
1684 /* See if this is an import library thunk. */
1685 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1687 if (strncmp (sec->name, ".idata\$", 7) == 0)
1689 /* The section containing the jmp stub has code
1691 if ((sec->flags & SEC_CODE) && sec->reloc_count)
1695 if (is_imp && stub_sec)
1698 long nsyms, src_count;
1699 struct bfd_link_hash_entry * blhe;
1701 if (!bfd_generic_link_read_symbols (is->the_bfd))
1703 einfo (_("%F%P: %pB: could not read symbols: %E\n"),
1707 symbols = bfd_get_outsymbols (is->the_bfd);
1708 nsyms = bfd_get_symcount (is->the_bfd);
1710 for (src_count = 0; src_count < nsyms; src_count++)
1712 if (symbols[src_count]->section->id == stub_sec->id)
1714 /* This symbol belongs to the section containing
1716 blhe = bfd_link_hash_lookup (link_info.hash,
1717 symbols[src_count]->name,
1718 FALSE, FALSE, TRUE);
1719 /* If the symbol in the stub section has no other
1720 undefined references, exclude the stub section
1721 from the final link. */
1723 && blhe->type == bfd_link_hash_defined
1724 && blhe->u.undef.next == NULL
1725 && blhe != link_info.hash->undefs_tail)
1726 stub_sec->flags |= SEC_EXCLUDE;
1736 gld_${EMULATION_NAME}_before_allocation (void)
1738 #ifdef TARGET_IS_ppcpe
1739 /* Here we rummage through the found bfds to collect toc information. */
1741 LANG_FOR_EACH_INPUT_STATEMENT (is)
1743 if (!ppc_process_before_allocation (is->the_bfd, &link_info))
1745 /* xgettext:c-format */
1746 einfo (_("%P: errors encountered processing file %s\n"), is->filename);
1751 /* We have seen it all. Allocate it, and carry on. */
1752 ppc_allocate_toc_section (&link_info);
1753 #endif /* TARGET_IS_ppcpe */
1755 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
1756 /* FIXME: we should be able to set the size of the interworking stub
1759 Here we rummage through the found bfds to collect glue
1760 information. FIXME: should this be based on a command line
1763 LANG_FOR_EACH_INPUT_STATEMENT (is)
1765 if (! bfd_arm_process_before_allocation
1766 (is->the_bfd, & link_info, support_old_code))
1768 /* xgettext:c-format */
1769 einfo (_("%P: errors encountered processing file %s for interworking\n"),
1775 /* We have seen it all. Allocate it, and carry on. */
1776 bfd_arm_allocate_interworking_sections (& link_info);
1777 #endif /* TARGET_IS_armpe || TARGET_IS_arm_wince_pe */
1779 before_allocation_default ();
1783 /* This is called when an input file isn't recognized as a BFD. We
1784 check here for .DEF files and pull them in automatically. */
1787 saw_option (char *option)
1791 for (i = 0; init[i].ptr; i++)
1792 if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0)
1793 return init[i].inited;
1796 #endif /* DLL_SUPPORT */
1799 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1802 const char *ext = entry->filename + strlen (entry->filename) - 4;
1804 if (filename_cmp (ext, ".def") == 0 || filename_cmp (ext, ".DEF") == 0)
1806 pe_def_file = def_file_parse (entry->filename, pe_def_file);
1810 int i, buflen=0, len;
1813 for (i = 0; i < pe_def_file->num_exports; i++)
1815 len = strlen (pe_def_file->exports[i].internal_name);
1816 if (buflen < len + 2)
1820 buf = xmalloc (buflen);
1822 for (i = 0; i < pe_def_file->num_exports; i++)
1824 struct bfd_link_hash_entry *h;
1826 sprintf (buf, "%s%s", U (""),
1827 pe_def_file->exports[i].internal_name);
1829 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1830 if (h == (struct bfd_link_hash_entry *) NULL)
1831 einfo (_("%F%P: bfd_link_hash_lookup failed: %E\n"));
1832 if (h->type == bfd_link_hash_new)
1834 h->type = bfd_link_hash_undefined;
1835 h->u.undef.abfd = NULL;
1836 bfd_link_add_undef (link_info.hash, h);
1841 /* def_file_print (stdout, pe_def_file); */
1842 if (pe_def_file->is_dll == 1)
1843 link_info.type = type_dll;
1845 if (pe_def_file->base_address != (bfd_vma)(-1))
1848 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1849 = init[IMAGEBASEOFF].value
1850 = pe_def_file->base_address;
1851 init[IMAGEBASEOFF].inited = 1;
1852 if (image_base_statement)
1853 image_base_statement->exp
1854 = exp_assign ("__image_base__", exp_intop (pe.ImageBase),
1858 if (pe_def_file->stack_reserve != -1
1859 && ! saw_option ("__size_of_stack_reserve__"))
1861 pe.SizeOfStackReserve = pe_def_file->stack_reserve;
1862 if (pe_def_file->stack_commit != -1)
1863 pe.SizeOfStackCommit = pe_def_file->stack_commit;
1865 if (pe_def_file->heap_reserve != -1
1866 && ! saw_option ("__size_of_heap_reserve__"))
1868 pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
1869 if (pe_def_file->heap_commit != -1)
1870 pe.SizeOfHeapCommit = pe_def_file->heap_commit;
1880 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1883 #ifdef TARGET_IS_i386pe
1884 pe_dll_id_target ("pei-i386");
1886 #ifdef TARGET_IS_shpe
1887 pe_dll_id_target ("pei-shl");
1889 #ifdef TARGET_IS_armpe
1890 pe_dll_id_target ("pei-arm-little");
1892 #ifdef TARGET_IS_arm_wince_pe
1893 pe_dll_id_target ("pei-arm-wince-little");
1895 if (pe_bfd_is_dll (entry->the_bfd))
1896 return pe_implied_import_dll (entry->filename);
1902 gld_${EMULATION_NAME}_finish (void)
1904 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
1905 struct bfd_link_hash_entry * h;
1907 if (thumb_entry_symbol != NULL)
1909 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
1910 FALSE, FALSE, TRUE);
1912 if (h != (struct bfd_link_hash_entry *) NULL
1913 && (h->type == bfd_link_hash_defined
1914 || h->type == bfd_link_hash_defweak)
1915 && h->u.def.section->output_section != NULL)
1917 static char buffer[32];
1920 /* Special procesing is required for a Thumb entry symbol. The
1921 bottom bit of its address must be set. */
1922 val = (h->u.def.value
1923 + bfd_section_vma (h->u.def.section->output_section)
1924 + h->u.def.section->output_offset);
1928 /* Now convert this value into a string and store it in entry_symbol
1929 where the lang_finish() function will pick it up. */
1933 sprintf_vma (buffer + 2, val);
1935 if (entry_symbol.name != NULL && entry_from_cmdline)
1936 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
1937 thumb_entry_symbol, entry_symbol.name);
1938 entry_symbol.name = buffer;
1941 einfo (_("%P: warning: cannot find thumb start symbol %s\n"), thumb_entry_symbol);
1943 #endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe) */
1948 if (bfd_link_pic (&link_info)
1949 #if !defined(TARGET_IS_shpe)
1950 || (!bfd_link_relocatable (&link_info)
1951 && pe_def_file->num_exports != 0)
1955 pe_dll_fill_sections (link_info.output_bfd, &link_info);
1956 if (command_line.out_implib_filename)
1957 pe_dll_generate_implib (pe_def_file, command_line.out_implib_filename,
1960 #if defined(TARGET_IS_shpe)
1961 /* ARM doesn't need relocs. */
1964 pe_exe_fill_sections (link_info.output_bfd, &link_info);
1968 if (pe_out_def_filename)
1969 pe_dll_generate_def_file (pe_out_def_filename);
1970 #endif /* DLL_SUPPORT */
1972 /* I don't know where .idata gets set as code, but it shouldn't be. */
1974 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
1978 asec->flags &= ~SEC_CODE;
1979 asec->flags |= SEC_DATA;
1985 /* Place an orphan section.
1987 We use this to put sections in a reasonable place in the file, and
1988 to ensure that they are aligned as required.
1990 We handle grouped sections here as well. A section named .foo\$nn
1991 goes into the output section .foo. All grouped sections are sorted
1994 Grouped sections for the default sections are handled by the
1995 default linker script using wildcards, and are sorted by
1998 static lang_output_section_statement_type *
1999 gld_${EMULATION_NAME}_place_orphan (asection *s,
2000 const char *secname,
2003 const char *orig_secname = secname;
2004 char *dollar = NULL;
2005 lang_output_section_statement_type *os;
2006 lang_statement_list_type add_child;
2007 lang_output_section_statement_type *match_by_name = NULL;
2008 lang_statement_union_type **pl;
2010 /* Look through the script to see where to place this section. */
2011 if (!bfd_link_relocatable (&link_info)
2012 && (dollar = strchr (secname, '\$')) != NULL)
2014 size_t len = dollar - secname;
2015 char *newname = xmalloc (len + 1);
2016 memcpy (newname, secname, len);
2017 newname[len] = '\0';
2021 lang_list_init (&add_child);
2024 if (constraint == 0)
2025 for (os = lang_output_section_find (secname);
2027 os = next_matching_output_section_statement (os, 0))
2029 /* If we don't match an existing output section, tell
2030 lang_insert_orphan to create a new output section. */
2031 constraint = SPECIAL;
2033 if (os->bfd_section != NULL
2034 && (os->bfd_section->flags == 0
2035 || ((s->flags ^ os->bfd_section->flags)
2036 & (SEC_LOAD | SEC_ALLOC)) == 0))
2038 /* We already have an output section statement with this
2039 name, and its bfd section has compatible flags.
2040 If the section already exists but does not have any flags set,
2041 then it has been created by the linker, probably as a result of
2042 a --section-start command line switch. */
2043 lang_add_section (&add_child, s, NULL, os);
2047 /* Save unused output sections in case we can match them
2048 against orphans later. */
2049 if (os->bfd_section == NULL)
2053 /* If we didn't match an active output section, see if we matched an
2054 unused one and use that. */
2055 if (os == NULL && match_by_name)
2057 lang_add_section (&match_by_name->children, s, NULL, match_by_name);
2058 return match_by_name;
2063 static struct orphan_save hold[] =
2066 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
2069 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
2072 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
2075 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
2081 enum orphan_save_index
2089 static int orphan_init_done = 0;
2090 struct orphan_save *place;
2091 lang_output_section_statement_type *after;
2092 etree_type *address;
2096 if (!orphan_init_done)
2098 struct orphan_save *ho;
2099 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
2100 if (ho->name != NULL)
2102 ho->os = lang_output_section_find (ho->name);
2103 if (ho->os != NULL && ho->os->flags == 0)
2104 ho->os->flags = ho->flags;
2106 orphan_init_done = 1;
2110 if (!bfd_link_relocatable (&link_info))
2113 while ((nexts = bfd_get_next_section_by_name (nexts->owner,
2115 if (nexts->output_section == NULL
2116 && (nexts->flags & SEC_EXCLUDE) == 0
2117 && ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0
2118 && (nexts->owner->flags & DYNAMIC) == 0
2119 && !bfd_input_just_syms (nexts->owner))
2120 flags = (((flags ^ SEC_READONLY)
2121 | (nexts->flags ^ SEC_READONLY))
2125 /* Try to put the new output section in a reasonable place based
2126 on the section name and section flags. */
2129 if ((flags & SEC_ALLOC) == 0)
2131 else if ((flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
2132 place = &hold[orphan_bss];
2133 else if ((flags & SEC_READONLY) == 0)
2134 place = &hold[orphan_data];
2135 else if ((flags & SEC_CODE) == 0)
2137 place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata]
2138 : &hold[orphan_rodata]);
2141 place = &hold[orphan_text];
2146 if (place->os == NULL)
2147 place->os = lang_output_section_find (place->name);
2150 after = lang_output_section_find_by_flags (s, flags, &place->os,
2153 /* *ABS* is always the first output section statement. */
2154 after = &lang_os_list.head->output_section_statement;
2157 /* All sections in an executable must be aligned to a page boundary.
2158 In a relocatable link, just preserve the incoming alignment; the
2159 address is discarded by lang_insert_orphan in that case, anyway. */
2160 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
2161 os = lang_insert_orphan (s, secname, constraint, after, place, address,
2163 if (bfd_link_relocatable (&link_info))
2165 os->section_alignment = exp_intop (1U << s->alignment_power);
2166 os->bfd_section->alignment_power = s->alignment_power;
2170 /* If the section name has a '\$', sort it with the other '\$'
2172 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next)
2174 lang_input_section_type *ls;
2177 if ((*pl)->header.type != lang_input_section_enum)
2180 ls = &(*pl)->input_section;
2182 lname = bfd_section_name (ls->section);
2183 if (strchr (lname, '\$') != NULL
2184 && (dollar == NULL || strcmp (orig_secname, lname) < 0))
2188 if (add_child.head != NULL)
2190 *add_child.tail = *pl;
2191 *pl = add_child.head;
2198 gld_${EMULATION_NAME}_open_dynamic_archive
2199 (const char *arch ATTRIBUTE_UNUSED,
2200 search_dirs_type *search,
2201 lang_input_statement_type *entry)
2205 const char * format;
2206 bfd_boolean use_prefix;
2210 /* Preferred explicit import library for dll's. */
2211 { "lib%s.dll.a", FALSE },
2212 /* Alternate explicit import library for dll's. */
2213 { "%s.dll.a", FALSE },
2214 /* "libfoo.a" could be either an import lib or a static lib.
2215 For backwards compatibility, libfoo.a needs to precede
2216 libfoo.dll and foo.dll in the search. */
2217 { "lib%s.a", FALSE },
2218 /* The 'native' spelling of an import lib name is "foo.lib". */
2219 { "%s.lib", FALSE },
2220 /* PR 22948 - Check for an import library. */
2221 { "lib%s.lib", FALSE },
2223 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
2224 { "%s%s.dll", TRUE },
2226 /* Try "libfoo.dll" (default preferred dll name). */
2227 { "lib%s.dll", FALSE },
2228 /* Finally try 'native' dll name "foo.dll". */
2229 { "%s.dll", FALSE },
2230 /* Note: If adding more formats to this table, make sure to check to
2231 see if their length is longer than libname_fmt[0].format, and if
2232 so, update the call to xmalloc() below. */
2235 static unsigned int format_max_len = 0;
2236 const char * filename;
2242 if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
2245 filename = entry->filename;
2247 if (format_max_len == 0)
2248 /* We need to allow space in the memory that we are going to allocate
2249 for the characters in the format string. Since the format array is
2250 static we only need to calculate this information once. In theory
2251 this value could also be computed statically, but this introduces
2252 the possibility for a discrepancy and hence a possible memory
2253 corruption. The lengths we compute here will be too long because
2254 they will include any formating characters (%s) in the strings, but
2255 this will not matter. */
2256 for (i = 0; libname_fmt[i].format; i++)
2257 if (format_max_len < strlen (libname_fmt[i].format))
2258 format_max_len = strlen (libname_fmt[i].format);
2260 full_string = xmalloc (strlen (search->name)
2264 + (pe_dll_search_prefix
2265 ? strlen (pe_dll_search_prefix) : 0)
2267 /* Allow for the terminating NUL and for the path
2268 separator character that is inserted between
2269 search->name and the start of the format string. */
2272 sprintf (full_string, "%s/", search->name);
2273 base_string = full_string + strlen (full_string);
2275 for (i = 0; libname_fmt[i].format; i++)
2278 if (libname_fmt[i].use_prefix)
2280 if (!pe_dll_search_prefix)
2282 sprintf (base_string, libname_fmt[i].format, pe_dll_search_prefix, filename);
2286 sprintf (base_string, libname_fmt[i].format, filename);
2288 if (ldfile_try_open_bfd (full_string, entry))
2292 if (!libname_fmt[i].format)
2298 entry->filename = full_string;
2304 gld_${EMULATION_NAME}_find_potential_libraries
2305 (char *name, lang_input_statement_type *entry)
2307 return ldfile_open_file_search (name, entry, "", ".lib");
2311 gld_${EMULATION_NAME}_get_script (int *isfile)
2313 # Scripts compiled in.
2314 # sed commands to quote an ld script as a C string.
2315 sc="-f stringify.sed"
2321 if (bfd_link_relocatable (&link_info) && config.build_constructors)
2324 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
2325 echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
2326 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
2327 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
2328 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
2329 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
2330 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
2331 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
2332 echo ' ; else if (link_info.pei386_auto_import == 1 && (MERGE_RDATA_V2 || link_info.pei386_runtime_pseudo_reloc != 2)) return' >> e${EMULATION_NAME}.c
2333 sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
2335 echo ' ; else return' >> e${EMULATION_NAME}.c
2336 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
2337 echo '; }' >> e${EMULATION_NAME}.c
2342 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
2344 gld_${EMULATION_NAME}_before_parse,
2347 gld_${EMULATION_NAME}_after_parse,
2348 gld_${EMULATION_NAME}_after_open,
2349 after_check_relocs_default,
2350 after_allocation_default,
2351 set_output_arch_default,
2352 ldemul_default_target,
2353 gld_${EMULATION_NAME}_before_allocation,
2354 gld_${EMULATION_NAME}_get_script,
2355 "${EMULATION_NAME}",
2357 gld_${EMULATION_NAME}_finish,
2358 NULL, /* Create output section statements. */
2359 gld_${EMULATION_NAME}_open_dynamic_archive,
2360 gld_${EMULATION_NAME}_place_orphan,
2361 gld_${EMULATION_NAME}_set_symbols,
2362 NULL, /* parse_args */
2363 gld${EMULATION_NAME}_add_options,
2364 gld${EMULATION_NAME}_handle_option,
2365 gld_${EMULATION_NAME}_unrecognized_file,
2366 gld_${EMULATION_NAME}_list_options,
2367 gld_${EMULATION_NAME}_recognized_file,
2368 gld_${EMULATION_NAME}_find_potential_libraries,
2369 NULL, /* new_vers_pattern. */
2370 NULL, /* extra_map_file_text. */
2371 ${LDEMUL_EMIT_CTF_EARLY-NULL},
2372 ${LDEMUL_EXAMINE_STRTAB_FOR_CTF-NULL}