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${EMULATION_NAME}.c # there, now line numbers match ;-)
11 /* Copyright (C) 1995-2014 Free Software Foundation, Inc.
13 This file is part of the GNU Binutils.
15 This program is free software; you can redistribute it and/or modify
16 it under the terms of the GNU General Public License as published by
17 the Free Software Foundation; either version 3 of the License, or
18 (at your option) any later version.
20 This program is distributed in the hope that it will be useful,
21 but WITHOUT ANY WARRANTY; without even the implied warranty of
22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 GNU General Public License for more details.
25 You should have received a copy of the GNU General Public License
26 along with this program; if not, write to the Free Software
27 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
28 MA 02110-1301, USA. */
32 /* The original file generated returned different default scripts depending
33 on whether certain switches were set, but these switches pertain to the
34 Linux system and that particular version of coff. In the NT case, we
35 only determine if the subsystem is console or windows in order to select
36 the correct entry point by default. */
38 #define TARGET_IS_${EMULATION_NAME}
40 /* Do this before including bfd.h, so we prototype the right functions. */
42 #if defined(TARGET_IS_armpe) \
43 || defined(TARGET_IS_arm_epoc_pe) \
44 || defined(TARGET_IS_arm_wince_pe)
45 #define bfd_arm_allocate_interworking_sections \
46 bfd_${EMULATION_NAME}_allocate_interworking_sections
47 #define bfd_arm_get_bfd_for_interworking \
48 bfd_${EMULATION_NAME}_get_bfd_for_interworking
49 #define bfd_arm_process_before_allocation \
50 bfd_${EMULATION_NAME}_process_before_allocation
57 #include "libiberty.h"
58 #include "filenames.h"
69 #include "ldbuildid.h"
70 #include "coff/internal.h"
72 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
73 header in generic PE code. */
74 #include "coff/i386.h"
77 /* FIXME: These are BFD internal header files, and we should not be
79 #include "../bfd/libcoff.h"
80 #include "../bfd/libpei.h"
84 #include "safe-ctype.h"
86 /* Permit the emulation parameters to override the default section
87 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
88 it seem that include/coff/internal.h should not define
89 PE_DEF_SECTION_ALIGNMENT. */
90 #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
91 #undef PE_DEF_SECTION_ALIGNMENT
92 #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
95 #if defined(TARGET_IS_i386pe) \
96 || defined(TARGET_IS_shpe) \
97 || defined(TARGET_IS_armpe) \
98 || defined(TARGET_IS_arm_epoc_pe) \
99 || defined(TARGET_IS_arm_wince_pe)
103 #if defined(TARGET_IS_i386pe)
104 #define DEFAULT_PSEUDO_RELOC_VERSION 2
106 #define DEFAULT_PSEUDO_RELOC_VERSION 1
109 #if defined(TARGET_IS_i386pe) || ! defined(DLL_SUPPORT)
110 #define PE_DEF_SUBSYSTEM 3
112 #undef NT_EXE_IMAGE_BASE
113 #undef PE_DEF_SECTION_ALIGNMENT
114 #undef PE_DEF_FILE_ALIGNMENT
115 #define NT_EXE_IMAGE_BASE 0x00010000
117 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
118 #define PE_DEF_SECTION_ALIGNMENT 0x00001000
119 #define PE_DEF_SUBSYSTEM 9
121 #define PE_DEF_SECTION_ALIGNMENT 0x00000400
122 #define PE_DEF_SUBSYSTEM 2
124 #define PE_DEF_FILE_ALIGNMENT 0x00000200
127 static struct internal_extra_pe_aouthdr pe;
129 static int pe_subsystem = ${SUBSYSTEM};
130 static flagword real_flags = 0;
131 static int support_old_code = 0;
132 static char * thumb_entry_symbol = NULL;
133 static lang_assignment_statement_type *image_base_statement = 0;
134 static unsigned short pe_dll_characteristics = 0;
135 static bfd_boolean insert_timestamp = FALSE;
136 static const char *emit_build_id;
139 static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */
140 static char *pe_out_def_filename = NULL;
141 static char *pe_implib_filename = NULL;
142 static int pe_enable_auto_image_base = 0;
143 static unsigned long pe_auto_image_base = 0x61500000;
144 static char *pe_dll_search_prefix = NULL;
147 extern const char *output_filename;
149 static int is_underscoring (void)
152 if (pe_leading_underscore != -1)
153 return pe_leading_underscore;
154 if (!bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL))
155 bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL);
159 pe_leading_underscore = (u != 0 ? 1 : 0);
160 return pe_leading_underscore;
164 gld_${EMULATION_NAME}_before_parse (void)
167 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
168 output_filename = "${EXECUTABLE_NAME:-a.exe}";
170 input_flags.dynamic = TRUE;
171 config.has_shared = 1;
174 # Cygwin no longer wants these noisy warnings. Other PE
175 # targets might like to consider adding themselves here.
176 # See also the mail thread starting here for the reason why
177 # merge_rdata defaults to 0 for cygwin:
178 # http://cygwin.com/ml/cygwin-apps/2013-04/msg00187.html
181 default_auto_import=1
182 default_merge_rdata=0
184 i[3-7]86-*-mingw* | x86_64-*-mingw*)
185 default_auto_import=1
186 default_merge_rdata=0
189 default_auto_import=-1
190 default_merge_rdata=1
195 link_info.pei386_auto_import = ${default_auto_import};
196 /* Use by default version. */
197 link_info.pei386_runtime_pseudo_reloc = DEFAULT_PSEUDO_RELOC_VERSION;
201 /* Indicates if RDATA shall be merged into DATA when pseudo-relocation
202 version 2 is used and auto-import is enabled. */
203 #define MERGE_RDATA_V2 ${default_merge_rdata}
205 /* PE format extra command line options. */
207 /* Used for setting flags in the PE header. */
208 #define OPTION_BASE_FILE (300 + 1)
209 #define OPTION_DLL (OPTION_BASE_FILE + 1)
210 #define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1)
211 #define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1)
212 #define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1)
213 #define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1)
214 #define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1)
215 #define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
216 #define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1)
217 #define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1)
218 #define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
219 #define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1)
220 #define OPTION_SUBSYSTEM (OPTION_STACK + 1)
221 #define OPTION_HEAP (OPTION_SUBSYSTEM + 1)
222 #define OPTION_SUPPORT_OLD_CODE (OPTION_HEAP + 1)
223 #define OPTION_OUT_DEF (OPTION_SUPPORT_OLD_CODE + 1)
224 #define OPTION_EXPORT_ALL (OPTION_OUT_DEF + 1)
225 #define OPTION_EXCLUDE_SYMBOLS (OPTION_EXPORT_ALL + 1)
226 #define OPTION_EXCLUDE_ALL_SYMBOLS (OPTION_EXCLUDE_SYMBOLS + 1)
227 #define OPTION_KILL_ATS (OPTION_EXCLUDE_ALL_SYMBOLS + 1)
228 #define OPTION_STDCALL_ALIASES (OPTION_KILL_ATS + 1)
229 #define OPTION_ENABLE_STDCALL_FIXUP (OPTION_STDCALL_ALIASES + 1)
230 #define OPTION_DISABLE_STDCALL_FIXUP (OPTION_ENABLE_STDCALL_FIXUP + 1)
231 #define OPTION_IMPLIB_FILENAME (OPTION_DISABLE_STDCALL_FIXUP + 1)
232 #define OPTION_THUMB_ENTRY (OPTION_IMPLIB_FILENAME + 1)
233 #define OPTION_WARN_DUPLICATE_EXPORTS (OPTION_THUMB_ENTRY + 1)
234 #define OPTION_IMP_COMPAT (OPTION_WARN_DUPLICATE_EXPORTS + 1)
235 #define OPTION_ENABLE_AUTO_IMAGE_BASE (OPTION_IMP_COMPAT + 1)
236 #define OPTION_DISABLE_AUTO_IMAGE_BASE (OPTION_ENABLE_AUTO_IMAGE_BASE + 1)
237 #define OPTION_DLL_SEARCH_PREFIX (OPTION_DISABLE_AUTO_IMAGE_BASE + 1)
238 #define OPTION_NO_DEFAULT_EXCLUDES (OPTION_DLL_SEARCH_PREFIX + 1)
239 #define OPTION_DLL_ENABLE_AUTO_IMPORT (OPTION_NO_DEFAULT_EXCLUDES + 1)
240 #define OPTION_DLL_DISABLE_AUTO_IMPORT (OPTION_DLL_ENABLE_AUTO_IMPORT + 1)
241 #define OPTION_ENABLE_EXTRA_PE_DEBUG (OPTION_DLL_DISABLE_AUTO_IMPORT + 1)
242 #define OPTION_EXCLUDE_LIBS (OPTION_ENABLE_EXTRA_PE_DEBUG + 1)
243 #define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC \
244 (OPTION_EXCLUDE_LIBS + 1)
245 #define OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC \
246 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC + 1)
247 #define OPTION_LARGE_ADDRESS_AWARE (OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC + 1)
248 #define OPTION_DISABLE_LARGE_ADDRESS_AWARE \
249 (OPTION_LARGE_ADDRESS_AWARE + 1)
250 #define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1 \
251 (OPTION_DISABLE_LARGE_ADDRESS_AWARE + 1)
252 #define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2 \
253 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1 + 1)
254 #define OPTION_EXCLUDE_MODULES_FOR_IMPLIB \
255 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2 + 1)
256 #define OPTION_USE_NUL_PREFIXED_IMPORT_TABLES \
257 (OPTION_EXCLUDE_MODULES_FOR_IMPLIB + 1)
258 #define OPTION_NO_LEADING_UNDERSCORE (OPTION_USE_NUL_PREFIXED_IMPORT_TABLES + 1)
259 #define OPTION_LEADING_UNDERSCORE (OPTION_NO_LEADING_UNDERSCORE + 1)
260 #define OPTION_ENABLE_LONG_SECTION_NAMES \
261 (OPTION_LEADING_UNDERSCORE + 1)
262 #define OPTION_DISABLE_LONG_SECTION_NAMES \
263 (OPTION_ENABLE_LONG_SECTION_NAMES + 1)
264 /* DLLCharacteristics flags. */
265 #define OPTION_DYNAMIC_BASE (OPTION_DISABLE_LONG_SECTION_NAMES + 1)
266 #define OPTION_FORCE_INTEGRITY (OPTION_DYNAMIC_BASE + 1)
267 #define OPTION_NX_COMPAT (OPTION_FORCE_INTEGRITY + 1)
268 #define OPTION_NO_ISOLATION (OPTION_NX_COMPAT + 1)
269 #define OPTION_NO_SEH (OPTION_NO_ISOLATION + 1)
270 #define OPTION_NO_BIND (OPTION_NO_SEH + 1)
271 #define OPTION_WDM_DRIVER (OPTION_NO_BIND + 1)
272 #define OPTION_TERMINAL_SERVER_AWARE (OPTION_WDM_DRIVER + 1)
274 #define OPTION_INSERT_TIMESTAMP (OPTION_TERMINAL_SERVER_AWARE + 1)
275 #define OPTION_BUILD_ID (OPTION_INSERT_TIMESTAMP + 1)
278 gld${EMULATION_NAME}_add_options
279 (int ns ATTRIBUTE_UNUSED,
280 char **shortopts ATTRIBUTE_UNUSED,
282 struct option **longopts,
283 int nrl ATTRIBUTE_UNUSED,
284 struct option **really_longopts ATTRIBUTE_UNUSED)
286 static const struct option xtra_long[] =
289 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
290 {"dll", no_argument, NULL, OPTION_DLL},
291 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
292 {"heap", required_argument, NULL, OPTION_HEAP},
293 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
294 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
295 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
296 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
297 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
298 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
299 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
300 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
301 {"stack", required_argument, NULL, OPTION_STACK},
302 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
303 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
304 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
305 {"use-nul-prefixed-import-tables", no_argument, NULL,
306 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},
307 {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE},
308 {"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE},
309 {"insert-timestamp", no_argument, NULL, OPTION_INSERT_TIMESTAMP},
311 /* getopt allows abbreviations, so we do this to stop it
312 from treating -o as an abbreviation for this option. */
313 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
314 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
315 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
316 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
317 {"exclude-all-symbols", no_argument, NULL, OPTION_EXCLUDE_ALL_SYMBOLS},
318 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
319 {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB},
320 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
321 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
322 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
323 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
324 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
325 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
326 /* getopt() allows abbreviations, so we do this to stop it from
327 treating -c as an abbreviation for these --compat-implib. */
328 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
329 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
330 {"enable-auto-image-base", optional_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
331 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
332 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
333 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
334 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
335 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
336 {"enable-extra-pe-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
337 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
338 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
339 {"enable-runtime-pseudo-reloc-v1", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1},
340 {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2},
342 {"large-address-aware", no_argument, NULL, OPTION_LARGE_ADDRESS_AWARE},
343 {"disable-large-address-aware", no_argument, NULL, OPTION_DISABLE_LARGE_ADDRESS_AWARE},
344 {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES},
345 {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES},
346 {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE},
347 {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY},
348 {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT},
349 {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION},
350 {"no-seh", no_argument, NULL, OPTION_NO_SEH},
351 {"no-bind", no_argument, NULL, OPTION_NO_BIND},
352 {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
353 {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
354 {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
355 {NULL, no_argument, NULL, 0}
359 = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
360 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
363 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
364 parameters which may be input from the command line. */
373 /* FALSE for an assembly level symbol and TRUE for a C visible symbol.
374 C visible symbols can be prefixed by underscore dependent to target's
376 bfd_boolean is_c_symbol;
379 /* Get symbol name dependent to kind and C visible state of
381 #define GET_INIT_SYMBOL_NAME(IDX) \
382 (init[(IDX)].symbol \
383 + ((init[(IDX)].is_c_symbol == FALSE || (is_underscoring () != 0)) ? 0 : 1))
385 /* Decorates the C visible symbol by underscore, if target requires. */
387 ((is_underscoring () == 0) ? CSTR : "_" CSTR)
389 /* Get size of constant string for a possible underscore prefixed
391 #define U_SIZE(CSTR) \
392 (sizeof (CSTR) + (is_underscoring () == 0 ? 0 : 1))
394 #define D(field,symbol,def,usc) {&pe.field, sizeof (pe.field), def, symbol, 0, usc}
396 static definfo init[] =
398 /* imagebase must be first */
399 #define IMAGEBASEOFF 0
400 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE, FALSE),
402 {&dll, sizeof(dll), 0, "__dll__", 0, FALSE},
403 #define MSIMAGEBASEOFF 2
404 D(ImageBase, "___ImageBase", NT_EXE_IMAGE_BASE, TRUE),
405 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT, FALSE),
406 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT, FALSE),
407 D(MajorOperatingSystemVersion,"__major_os_version__", 4, FALSE),
408 D(MinorOperatingSystemVersion,"__minor_os_version__", 0, FALSE),
409 D(MajorImageVersion,"__major_image_version__", 1, FALSE),
410 D(MinorImageVersion,"__minor_image_version__", 0, FALSE),
411 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
412 D(MajorSubsystemVersion,"__major_subsystem_version__", 3, FALSE),
414 D(MajorSubsystemVersion,"__major_subsystem_version__", 4, FALSE),
416 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0, FALSE),
417 D(Subsystem,"__subsystem__", ${SUBSYSTEM}, FALSE),
418 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, FALSE),
419 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, FALSE),
420 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, FALSE),
421 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, FALSE),
422 D(LoaderFlags,"__loader_flags__", 0x0, FALSE),
423 D(DllCharacteristics, "__dll_characteristics__", 0x0, FALSE),
424 { NULL, 0, 0, NULL, 0 , FALSE}
429 gld_${EMULATION_NAME}_list_options (FILE *file)
431 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
432 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
433 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
434 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
435 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
436 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
437 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
438 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
439 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
440 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
441 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
442 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
443 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
444 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
445 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
446 fprintf (file, _(" --[no-]leading-underscore Set explicit symbol underscore prefix mode\n"));
447 fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n"));
448 fprintf (file, _(" --insert-timestamp Use a real timestamp rather than zero.\n"));
449 fprintf (file, _(" This makes binaries non-deterministic\n"));
451 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
452 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
453 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
454 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
455 fprintf (file, _(" --exclude-all-symbols Exclude all symbols from automatic export\n"));
456 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
457 fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n"));
458 fprintf (file, _(" Exclude objects, archive members from auto\n"));
459 fprintf (file, _(" export, place into import library instead.\n"));
460 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
461 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
462 fprintf (file, _(" --out-implib <file> Generate import library\n"));
463 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
464 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports\n"));
465 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
466 create __imp_<SYMBOL> as well.\n"));
467 fprintf (file, _(" --enable-auto-image-base[=<address>] Automatically choose image base for DLLs\n\
468 (optionally starting with address) unless\n\
469 specifically set with --image-base\n"));
470 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));
471 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\
472 an importlib, use <string><basename>.dll\n\
473 in preference to lib<basename>.dll \n"));
474 fprintf (file, _(" --enable-auto-import Do sophisticated linking of _sym to\n\
475 __imp_sym for DATA references\n"));
476 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
477 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\
478 adding pseudo-relocations resolved at\n\
480 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\
481 auto-imported DATA.\n"));
482 fprintf (file, _(" --enable-extra-pe-debug Enable verbose debug output when building\n\
483 or linking to DLLs (esp. auto-import)\n"));
485 fprintf (file, _(" --large-address-aware Executable supports virtual addresses\n\
486 greater than 2 gigabytes\n"));
487 fprintf (file, _(" --disable-large-address-aware Executable does not support virtual\n\
488 addresses greater than 2 gigabytes\n"));
489 fprintf (file, _(" --enable-long-section-names Use long COFF section names even in\n\
490 executable image files\n"));
491 fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\
492 in object files\n"));
493 fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\
494 address space layout randomization (ASLR)\n"));
495 fprintf (file, _(" --forceinteg Code integrity checks are enforced\n"));
496 fprintf (file, _(" --nxcompat Image is compatible with data execution prevention\n"));
497 fprintf (file, _(" --no-isolation Image understands isolation but do not isolate the image\n"));
498 fprintf (file, _(" --no-seh Image does not use SEH. No SE handler may\n\
499 be called in this image\n"));
500 fprintf (file, _(" --no-bind Do not bind this image\n"));
501 fprintf (file, _(" --wdmdriver Driver uses the WDM model\n"));
502 fprintf (file, _(" --tsaware Image is Terminal Server aware\n"));
503 fprintf (file, _(" --build-id[=STYLE] Generate build ID\n"));
508 set_pe_name (char *name, long val)
513 /* Find the name and set it. */
514 for (i = 0; init[i].ptr; i++)
516 if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0)
520 if (strcmp (name,"__image_base__") == 0)
521 set_pe_name (U ("__ImageBase"), val);
529 set_entry_point (void)
532 const char *initial_symbol_char;
542 { 1, "NtProcessStartup" },
543 { 2, "WinMainCRTStartup" },
544 { 3, "mainCRTStartup" },
545 { 7, "__PosixProcessStartup"},
546 { 9, "WinMainCRTStartup" },
547 {14, "mainCRTStartup" },
551 /* Entry point name for arbitrary subsystem numbers. */
552 static const char default_entry[] = "mainCRTStartup";
554 if (link_info.shared || dll)
556 #if defined (TARGET_IS_i386pe)
557 entry = "DllMainCRTStartup@12";
559 entry = "DllMainCRTStartup";
565 for (i = 0; v[i].entry; i++)
566 if (v[i].value == pe_subsystem)
569 /* If no match, use the default. */
570 if (v[i].entry != NULL)
573 entry = default_entry;
576 initial_symbol_char = (is_underscoring () != 0 ? "_" : "");
578 if (*initial_symbol_char != '\0')
582 /* lang_default_entry expects its argument to be permanently
583 allocated, so we don't free this string. */
584 alc_entry = xmalloc (strlen (initial_symbol_char)
587 strcpy (alc_entry, initial_symbol_char);
588 strcat (alc_entry, entry);
592 lang_default_entry (entry);
596 set_pe_subsystem (void)
602 unsigned long temp_subsystem;
619 /* Check for the presence of a version number. */
620 sver = strchr (optarg, ':');
622 len = strlen (optarg);
626 set_pe_name ("__major_subsystem_version__",
627 strtoul (sver + 1, &end, 0));
629 set_pe_name ("__minor_subsystem_version__",
630 strtoul (end + 1, &end, 0));
632 einfo (_("%P: warning: bad version number in -subsystem option\n"));
635 /* Check for numeric subsystem. */
636 temp_subsystem = strtoul (optarg, & end, 0);
637 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
639 /* Search list for a numeric match to use its entry point. */
640 for (i = 0; v[i].name; i++)
641 if (v[i].value == (int) temp_subsystem)
644 /* Use this subsystem. */
645 pe_subsystem = (int) temp_subsystem;
649 /* Search for subsystem by name. */
650 for (i = 0; v[i].name; i++)
651 if (strncmp (optarg, v[i].name, len) == 0
652 && v[i].name[len] == '\0')
655 if (v[i].name == NULL)
657 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
661 pe_subsystem = v[i].value;
664 set_pe_name ("__subsystem__", pe_subsystem);
671 set_pe_value (char *name)
675 set_pe_name (name, strtoul (optarg, &end, 0));
678 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
685 set_pe_stack_heap (char *resname, char *comname)
687 set_pe_value (resname);
692 set_pe_value (comname);
695 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
698 #define DEFAULT_BUILD_ID_STYLE "md5"
701 gld${EMULATION_NAME}_handle_option (int optc)
708 case OPTION_BASE_FILE:
709 link_info.base_file = fopen (optarg, FOPEN_WB);
710 if (link_info.base_file == NULL)
711 einfo (_("%F%P: cannot open base file %s\n"), optarg);
716 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
719 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
721 case OPTION_SUBSYSTEM:
724 case OPTION_MAJOR_OS_VERSION:
725 set_pe_value ("__major_os_version__");
727 case OPTION_MINOR_OS_VERSION:
728 set_pe_value ("__minor_os_version__");
730 case OPTION_MAJOR_SUBSYSTEM_VERSION:
731 set_pe_value ("__major_subsystem_version__");
733 case OPTION_MINOR_SUBSYSTEM_VERSION:
734 set_pe_value ("__minor_subsystem_version__");
736 case OPTION_MAJOR_IMAGE_VERSION:
737 set_pe_value ("__major_image_version__");
739 case OPTION_MINOR_IMAGE_VERSION:
740 set_pe_value ("__minor_image_version__");
742 case OPTION_FILE_ALIGNMENT:
743 set_pe_value ("__file_alignment__");
745 case OPTION_SECTION_ALIGNMENT:
746 set_pe_value ("__section_alignment__");
749 set_pe_name ("__dll__", 1);
751 case OPTION_IMAGE_BASE:
752 set_pe_value ("__image_base__");
754 case OPTION_SUPPORT_OLD_CODE:
755 support_old_code = 1;
757 case OPTION_THUMB_ENTRY:
758 thumb_entry_symbol = optarg;
760 case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
761 pe_use_nul_prefixed_import_tables = TRUE;
763 case OPTION_NO_LEADING_UNDERSCORE:
764 pe_leading_underscore = 0;
766 case OPTION_LEADING_UNDERSCORE:
767 pe_leading_underscore = 1;
769 case OPTION_INSERT_TIMESTAMP:
770 insert_timestamp = TRUE;
774 pe_out_def_filename = xstrdup (optarg);
776 case OPTION_EXPORT_ALL:
777 pe_dll_export_everything = 1;
779 case OPTION_EXCLUDE_SYMBOLS:
780 pe_dll_add_excludes (optarg, EXCLUDESYMS);
782 case OPTION_EXCLUDE_ALL_SYMBOLS:
783 pe_dll_exclude_all_symbols = 1;
785 case OPTION_EXCLUDE_LIBS:
786 pe_dll_add_excludes (optarg, EXCLUDELIBS);
788 case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
789 pe_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
791 case OPTION_KILL_ATS:
794 case OPTION_STDCALL_ALIASES:
795 pe_dll_stdcall_aliases = 1;
797 case OPTION_ENABLE_STDCALL_FIXUP:
798 pe_enable_stdcall_fixup = 1;
800 case OPTION_DISABLE_STDCALL_FIXUP:
801 pe_enable_stdcall_fixup = 0;
803 case OPTION_IMPLIB_FILENAME:
804 pe_implib_filename = xstrdup (optarg);
806 case OPTION_WARN_DUPLICATE_EXPORTS:
807 pe_dll_warn_dup_exports = 1;
809 case OPTION_IMP_COMPAT:
810 pe_dll_compat_implib = 1;
812 case OPTION_ENABLE_AUTO_IMAGE_BASE:
813 pe_enable_auto_image_base = 1;
814 if (optarg && *optarg)
817 pe_auto_image_base = strtoul (optarg, &end, 0);
818 /* XXX should check that we actually parsed something */
821 case OPTION_DISABLE_AUTO_IMAGE_BASE:
822 pe_enable_auto_image_base = 0;
824 case OPTION_DLL_SEARCH_PREFIX:
825 pe_dll_search_prefix = xstrdup (optarg);
827 case OPTION_NO_DEFAULT_EXCLUDES:
828 pe_dll_do_default_excludes = 0;
830 case OPTION_DLL_ENABLE_AUTO_IMPORT:
831 link_info.pei386_auto_import = 1;
833 case OPTION_DLL_DISABLE_AUTO_IMPORT:
834 link_info.pei386_auto_import = 0;
836 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
837 link_info.pei386_runtime_pseudo_reloc =
838 DEFAULT_PSEUDO_RELOC_VERSION;
840 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1:
841 link_info.pei386_runtime_pseudo_reloc = 1;
843 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
844 link_info.pei386_runtime_pseudo_reloc = 2;
846 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
847 link_info.pei386_runtime_pseudo_reloc = 0;
849 case OPTION_ENABLE_EXTRA_PE_DEBUG:
850 pe_dll_extra_pe_debug = 1;
853 case OPTION_LARGE_ADDRESS_AWARE:
854 real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
856 case OPTION_DISABLE_LARGE_ADDRESS_AWARE:
857 real_flags &= ~ IMAGE_FILE_LARGE_ADDRESS_AWARE;
859 case OPTION_ENABLE_LONG_SECTION_NAMES:
860 pe_use_coff_long_section_names = 1;
862 case OPTION_DISABLE_LONG_SECTION_NAMES:
863 pe_use_coff_long_section_names = 0;
865 /* Get DLLCharacteristics bits */
866 case OPTION_DYNAMIC_BASE:
867 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
869 case OPTION_FORCE_INTEGRITY:
870 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY;
872 case OPTION_NX_COMPAT:
873 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
875 case OPTION_NO_ISOLATION:
876 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
879 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH;
882 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND;
884 case OPTION_WDM_DRIVER:
885 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER;
887 case OPTION_TERMINAL_SERVER_AWARE:
888 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
890 case OPTION_BUILD_ID:
891 if (emit_build_id != NULL)
893 free ((char *) emit_build_id);
894 emit_build_id = NULL;
897 optarg = DEFAULT_BUILD_ID_STYLE;
898 if (strcmp (optarg, "none"))
899 emit_build_id = xstrdup (optarg);
903 /* Set DLLCharacteristics bits */
904 set_pe_name ("__dll_characteristics__", pe_dll_characteristics);
912 strhash (const char *str)
914 const unsigned char *s;
921 s = (const unsigned char *) str;
922 while ((c = *s++) != '\0')
924 hash += c + (c << 17);
928 hash += len + (len << 17);
934 /* Use the output file to create a image base for relocatable DLLs. */
937 compute_dll_image_base (const char *ofile)
939 unsigned long hash = strhash (ofile);
940 return pe_auto_image_base + ((hash << 16) & 0x0FFC0000);
944 /* Assign values to the special symbols before the linker script is
948 gld_${EMULATION_NAME}_set_symbols (void)
950 /* Run through and invent symbols for all the
951 names and insert the defaults. */
956 if (!init[IMAGEBASEOFF].inited)
958 if (link_info.relocatable)
959 init[IMAGEBASEOFF].value = 0;
960 else if (init[DLLOFF].value || (link_info.shared && !link_info.pie))
963 init[IMAGEBASEOFF].value = (pe_enable_auto_image_base
964 ? compute_dll_image_base (output_filename)
965 : NT_DLL_IMAGE_BASE);
967 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
971 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
972 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
975 /* Don't do any symbol assignments if this is a relocatable link. */
976 if (link_info.relocatable)
979 /* Glue the assignments into the abs section. */
980 push_stat_ptr (&abs_output_section->children);
982 for (j = 0; init[j].ptr; j++)
984 long val = init[j].value;
985 lang_assignment_statement_type *rv;
987 rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j),
988 exp_intop (val), FALSE));
989 if (init[j].size == sizeof (short))
990 *(short *) init[j].ptr = val;
991 else if (init[j].size == sizeof (int))
992 *(int *) init[j].ptr = val;
993 else if (init[j].size == sizeof (long))
994 *(long *) init[j].ptr = val;
995 /* This might be a long long or other special type. */
996 else if (init[j].size == sizeof (bfd_vma))
997 *(bfd_vma *) init[j].ptr = val;
999 if (j == IMAGEBASEOFF)
1000 image_base_statement = rv;
1002 /* Restore the pointer. */
1005 if (pe.FileAlignment > pe.SectionAlignment)
1007 einfo (_("%P: warning, file alignment > section alignment.\n"));
1011 /* This is called after the linker script and the command line options
1015 gld_${EMULATION_NAME}_after_parse (void)
1017 /* PR ld/6744: Warn the user if they have used an ELF-only
1018 option hoping it will work on PE. */
1019 if (link_info.export_dynamic)
1020 einfo (_("%P: warning: --export-dynamic is not supported for PE "
1021 "targets, did you mean --export-all-symbols?\n"));
1025 after_parse_default ();
1028 /* pe-dll.c directly accesses pe_data_import_dll,
1029 so it must be defined outside of #ifdef DLL_SUPPORT.
1030 Note - this variable is deliberately not initialised.
1031 This allows it to be treated as a common varaible, and only
1032 exist in one incarnation in a multiple target enabled linker. */
1033 char * pe_data_import_dll;
1036 static struct bfd_link_hash_entry *pe_undef_found_sym;
1039 pe_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
1043 const char *hs = h->root.string;
1045 sl = strlen (string);
1046 if (h->type == bfd_link_hash_defined
1047 && ((*hs == '@' && *string == '_'
1048 && strncmp (hs + 1, string + 1, sl - 1) == 0)
1049 || strncmp (hs, string, sl) == 0)
1050 && h->root.string[sl] == '@')
1052 pe_undef_found_sym = h;
1059 pe_fixup_stdcalls (void)
1061 static int gave_warning_message = 0;
1062 struct bfd_link_hash_entry *undef, *sym;
1064 if (pe_dll_extra_pe_debug)
1065 printf ("%s\n", __FUNCTION__);
1067 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
1068 if (undef->type == bfd_link_hash_undefined)
1070 char* at = strchr (undef->root.string, '@');
1071 int lead_at = (*undef->root.string == '@');
1073 at = strchr (undef->root.string + 1, '@');
1077 /* The symbol is a stdcall symbol, so let's look for a
1078 cdecl symbol with the same name and resolve to that. */
1079 char *cname = xstrdup (undef->root.string);
1083 at = strchr (cname, '@');
1086 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
1088 if (sym && sym->type == bfd_link_hash_defined)
1090 undef->type = bfd_link_hash_defined;
1091 undef->u.def.value = sym->u.def.value;
1092 undef->u.def.section = sym->u.def.section;
1094 if (pe_enable_stdcall_fixup == -1)
1096 einfo (_("Warning: resolving %s by linking to %s\n"),
1097 undef->root.string, cname);
1098 if (! gave_warning_message)
1100 gave_warning_message = 1;
1101 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1102 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1109 /* The symbol is a cdecl symbol, so we look for stdcall
1110 symbols - which means scanning the whole symbol table. */
1111 pe_undef_found_sym = 0;
1112 bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
1113 (char *) undef->root.string);
1114 sym = pe_undef_found_sym;
1117 undef->type = bfd_link_hash_defined;
1118 undef->u.def.value = sym->u.def.value;
1119 undef->u.def.section = sym->u.def.section;
1121 if (pe_enable_stdcall_fixup == -1)
1123 einfo (_("Warning: resolving %s by linking to %s\n"),
1124 undef->root.string, sym->root.string);
1125 if (! gave_warning_message)
1127 gave_warning_message = 1;
1128 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1129 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1138 make_import_fixup (arelent *rel, asection *s)
1140 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
1143 if (pe_dll_extra_pe_debug)
1144 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
1145 (unsigned long) rel->address, (long) rel->addend);
1147 if (! bfd_get_section_contents (s->owner, s, addend, rel->address, sizeof (addend)))
1148 einfo (_("%C: Cannot get section contents - auto-import exception\n"),
1149 s->owner, s, rel->address);
1151 pe_create_import_fixup (rel, s, bfd_get_32 (s->owner, addend));
1157 pe_find_data_imports (void)
1159 struct bfd_link_hash_entry *undef, *sym;
1161 if (link_info.pei386_auto_import == 0)
1164 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
1166 if (undef->type == bfd_link_hash_undefined)
1168 /* C++ symbols are *long*. */
1171 if (pe_dll_extra_pe_debug)
1172 printf ("%s:%s\n", __FUNCTION__, undef->root.string);
1174 sprintf (buf, "__imp_%s", undef->root.string);
1176 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
1178 if (sym && sym->type == bfd_link_hash_defined)
1180 bfd *b = sym->u.def.section->owner;
1184 if (link_info.pei386_auto_import == -1)
1186 static bfd_boolean warned = FALSE;
1188 info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"),
1189 undef->root.string, buf);
1191 /* PR linker/4844. */
1195 einfo (_("%P: warning: auto-importing has been activated without --enable-auto-import specified on the command line.\n\
1196 This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.\n"));
1200 if (!bfd_generic_link_read_symbols (b))
1202 einfo (_("%B%F: could not read symbols: %E\n"), b);
1206 symbols = bfd_get_outsymbols (b);
1207 nsyms = bfd_get_symcount (b);
1209 for (i = 0; i < nsyms; i++)
1211 if (! CONST_STRNEQ (symbols[i]->name,
1215 if (pe_dll_extra_pe_debug)
1216 printf ("->%s\n", symbols[i]->name);
1218 pe_data_import_dll = (char *) (symbols[i]->name
1219 + U_SIZE ("_head_") - 1);
1223 pe_walk_relocs_of_symbol (&link_info, undef->root.string,
1226 /* Let's differentiate it somehow from defined. */
1227 undef->type = bfd_link_hash_defweak;
1228 /* We replace original name with __imp_ prefixed, this
1229 1) may trash memory 2) leads to duplicate symbol generation.
1230 Still, IMHO it's better than having name poluted. */
1231 undef->root.string = sym->root.string;
1232 undef->u.def.value = sym->u.def.value;
1233 undef->u.def.section = sym->u.def.section;
1240 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
1242 printf ("+%s\n", h->string);
1246 #endif /* DLL_SUPPORT */
1249 debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
1251 int *found = (int *) obj;
1252 if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
1257 pecoff_checksum_contents (bfd *abfd,
1258 void (*process) (const void *, size_t, void *),
1261 file_ptr filepos = (file_ptr) 0;
1268 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
1271 status = bfd_bread (&b, (bfd_size_type) 1, abfd);
1277 (*process) (&b, 1, arg);
1285 write_build_id (bfd *abfd)
1287 struct pe_tdata *t = pe_data (abfd);
1289 struct bfd_link_order *link_order = NULL;
1290 unsigned char *contents;
1292 bfd_size_type build_id_size;
1293 unsigned char *build_id;
1295 /* Find the section the .build-id output section has been merged info. */
1296 for (asec = abfd->sections; asec != NULL; asec = asec->next)
1298 struct bfd_link_order *l = NULL;
1299 for (l = asec->map_head.link_order; l != NULL; l = l->next)
1301 if ((l->type == bfd_indirect_link_order))
1303 if (l->u.indirect.section == t->build_id.sec)
1317 einfo (_("%P: warning: .build-id section discarded,"
1318 " --build-id ignored.\n"));
1322 if (t->build_id.sec->contents == NULL)
1323 t->build_id.sec->contents = (unsigned char *) xmalloc (t->build_id.sec->size);
1324 contents = t->build_id.sec->contents;
1325 size = t->build_id.sec->size;
1327 build_id_size = compute_build_id_size (t->build_id.style);
1328 build_id = xmalloc (build_id_size);
1329 generate_build_id (abfd, t->build_id.style, pecoff_checksum_contents, build_id, build_id_size);
1331 bfd_vma ib = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase;
1333 /* Construct a debug directory entry which points to an immediately following CodeView record. */
1334 struct internal_IMAGE_DEBUG_DIRECTORY idd;
1335 idd.Characteristics = 0;
1336 idd.TimeDateStamp = 0;
1337 idd.MajorVersion = 0;
1338 idd.MinorVersion = 0;
1339 idd.Type = PE_IMAGE_DEBUG_TYPE_CODEVIEW;
1340 idd.SizeOfData = sizeof (CV_INFO_PDB70) + 1;
1341 idd.AddressOfRawData = asec->vma - ib + link_order->offset
1342 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1343 idd.PointerToRawData = asec->filepos + link_order->offset
1344 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1346 struct external_IMAGE_DEBUG_DIRECTORY *ext = (struct external_IMAGE_DEBUG_DIRECTORY *)contents;
1347 _bfd_XXi_swap_debugdir_out (abfd, &idd, ext);
1349 /* Write the debug directory entry. */
1350 if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0)
1353 if ((bfd_bwrite (contents, size, abfd) != size))
1356 /* Construct the CodeView record. */
1357 CODEVIEW_INFO cvinfo;
1358 cvinfo.CVSignature = CVINFO_PDB70_CVSIGNATURE;
1361 /* Zero pad or truncate the generated build_id to fit in the CodeView record. */
1362 memset (&(cvinfo.Signature), 0, CV_INFO_SIGNATURE_LENGTH);
1363 memcpy (&(cvinfo.Signature), build_id, (build_id_size > CV_INFO_SIGNATURE_LENGTH)
1364 ? CV_INFO_SIGNATURE_LENGTH : build_id_size);
1368 /* Write the codeview record. */
1369 if (_bfd_XXi_write_codeview_record (abfd, idd.PointerToRawData, &cvinfo) == 0)
1372 /* Record the location of the debug directory in the data directory. */
1373 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress
1374 = asec->vma - ib + link_order->offset;
1375 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size
1376 = sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1381 /* Make .build-id section, and set up coff_tdata->build_id. */
1383 setup_build_id (bfd *ibfd)
1388 if (!validate_build_id_style (emit_build_id))
1390 einfo ("%P: warning: unrecognized --build-id style ignored.\n");
1394 flags = (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
1395 | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
1396 s = bfd_make_section_anyway_with_flags (ibfd, ".build-id", flags);
1399 struct pe_tdata *t = pe_data (link_info.output_bfd);
1400 t->build_id.after_write_object_contents = &write_build_id;
1401 t->build_id.style = emit_build_id;
1402 t->build_id.sec = s;
1404 /* Section is a fixed size:
1405 One IMAGE_DEBUG_DIRECTORY entry, of type IMAGE_DEBUG_TYPE_CODEVIEW,
1406 pointing at a CV_INFO_PDB70 record containing the build-id, with a
1407 null byte for PdbFileName. */
1408 s->size = sizeof (struct external_IMAGE_DEBUG_DIRECTORY)
1409 + sizeof (CV_INFO_PDB70) + 1;
1414 einfo ("%P: warning: Cannot create .build-id section,"
1415 " --build-id ignored.\n");
1420 gld_${EMULATION_NAME}_after_open (void)
1422 after_open_default ();
1425 if (pe_dll_extra_pe_debug)
1428 struct bfd_link_hash_entry *sym;
1430 printf ("%s()\n", __FUNCTION__);
1432 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1433 printf ("-%s\n", sym->root.string);
1434 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1436 for (a = link_info.input_bfds; a; a = a->link_next)
1437 printf ("*%s\n",a->filename);
1441 if (emit_build_id != NULL)
1445 /* Find a COFF input. */
1446 for (abfd = link_info.input_bfds;
1447 abfd != (bfd *) NULL; abfd = abfd->link_next)
1448 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
1451 /* If there are no COFF input files do not try to
1452 add a build-id section. */
1454 || !setup_build_id (abfd))
1456 free ((char *) emit_build_id);
1457 emit_build_id = NULL;
1461 /* Pass the wacky PE command line options into the output bfd.
1462 FIXME: This should be done via a function, rather than by
1463 including an internal BFD header. */
1465 if (coff_data (link_info.output_bfd) == NULL
1466 || coff_data (link_info.output_bfd)->pe == 0)
1467 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"),
1468 link_info.output_bfd);
1470 pe_data (link_info.output_bfd)->pe_opthdr = pe;
1471 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1472 pe_data (link_info.output_bfd)->real_flags |= real_flags;
1473 pe_data (link_info.output_bfd)->insert_timestamp = insert_timestamp;
1475 /* At this point we must decide whether to use long section names
1476 in the output or not. If the user hasn't explicitly specified
1477 on the command line, we leave it to the default for the format
1478 (object files yes, image files no), except if there is debug
1479 information present; GDB relies on the long section names to
1480 find it, so enable it in that case. */
1481 if (pe_use_coff_long_section_names < 0 && link_info.strip == strip_none)
1483 if (link_info.relocatable)
1484 pe_use_coff_long_section_names = 1;
1487 /* Iterate over all sections of all input BFDs, checking
1488 for any that begin 'debug_' and are long names. */
1489 LANG_FOR_EACH_INPUT_STATEMENT (is)
1491 int found_debug = 0;
1493 bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
1496 pe_use_coff_long_section_names = 1;
1503 pe_output_file_set_long_section_names (link_info.output_bfd);
1506 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
1507 pe_fixup_stdcalls ();
1509 pe_process_import_defs (link_info.output_bfd, &link_info);
1511 pe_find_data_imports ();
1513 /* As possibly new symbols are added by imports, we rerun
1514 stdcall/fastcall fixup here. */
1515 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
1516 pe_fixup_stdcalls ();
1518 #if defined (TARGET_IS_i386pe) \
1519 || defined (TARGET_IS_armpe) \
1520 || defined (TARGET_IS_arm_epoc_pe) \
1521 || defined (TARGET_IS_arm_wince_pe)
1522 if (!link_info.relocatable)
1523 pe_dll_build_sections (link_info.output_bfd, &link_info);
1525 if (link_info.shared)
1526 pe_dll_build_sections (link_info.output_bfd, &link_info);
1528 pe_exe_build_sections (link_info.output_bfd, &link_info);
1530 #endif /* DLL_SUPPORT */
1532 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1533 if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
1535 /* The arm backend needs special fields in the output hash structure.
1536 These will only be created if the output format is an arm format,
1537 hence we do not support linking and changing output formats at the
1538 same time. Use a link followed by objcopy to change output formats. */
1539 einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
1543 /* Find a BFD that can hold the interworking stubs. */
1544 LANG_FOR_EACH_INPUT_STATEMENT (is)
1546 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
1553 /* This next chunk of code tries to detect the case where you have
1554 two import libraries for the same DLL (specifically,
1555 symbolically linking libm.a and libc.a in cygwin to
1556 libcygwin.a). In those cases, it's possible for function
1557 thunks from the second implib to be used but without the
1558 head/tail objects, causing an improper import table. We detect
1559 those cases and rename the "other" import libraries to match
1560 the one the head/tail come from, so that the linker will sort
1561 things nicely and produce a valid import table. */
1563 LANG_FOR_EACH_INPUT_STATEMENT (is)
1565 if (is->the_bfd->my_archive)
1567 int idata2 = 0, reloc_count=0, is_imp = 0;
1570 /* See if this is an import library thunk. */
1571 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1573 if (strcmp (sec->name, ".idata\$2") == 0)
1575 if (CONST_STRNEQ (sec->name, ".idata\$"))
1577 reloc_count += sec->reloc_count;
1580 if (is_imp && !idata2 && reloc_count)
1582 /* It is, look for the reference to head and see if it's
1583 from our own library. */
1584 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1592 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1596 if (!bfd_generic_link_read_symbols (is->the_bfd))
1598 einfo (_("%B%F: could not read symbols: %E\n"),
1602 symbols = bfd_get_outsymbols (is->the_bfd);
1604 relocs = xmalloc ((size_t) relsize);
1605 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1610 einfo ("%X%P: unable to process relocs: %E\n");
1614 for (i = 0; i < nrelocs; i++)
1616 struct bfd_symbol *s;
1617 struct bfd_link_hash_entry * blhe;
1618 char *other_bfd_filename;
1621 s = (relocs[i]->sym_ptr_ptr)[0];
1623 if (s->flags & BSF_LOCAL)
1626 /* Thunk section with reloc to another bfd. */
1627 blhe = bfd_link_hash_lookup (link_info.hash,
1629 FALSE, FALSE, TRUE);
1632 || blhe->type != bfd_link_hash_defined)
1636 = blhe->u.def.section->owner->my_archive
1637 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1638 : bfd_get_filename (blhe->u.def.section->owner);
1640 if (filename_cmp (bfd_get_filename
1641 (is->the_bfd->my_archive),
1642 other_bfd_filename) == 0)
1645 /* Rename this implib to match the other one. */
1646 n = xmalloc (strlen (other_bfd_filename) + 1);
1647 strcpy (n, other_bfd_filename);
1648 is->the_bfd->my_archive->filename = n;
1652 /* Note - we do not free the symbols,
1653 they are now cached in the BFD. */
1663 lang_input_statement_type *is2;
1664 lang_input_statement_type *is3;
1666 /* Careful - this is a shell script. Watch those dollar signs! */
1667 /* Microsoft import libraries have every member named the same,
1668 and not in the right order for us to link them correctly. We
1669 must detect these and rename the members so that they'll link
1670 correctly. There are three types of objects: the head, the
1671 thunks, and the sentinel(s). The head is easy; it's the one
1672 with idata2. We assume that the sentinels won't have relocs,
1673 and the thunks will. It's easier than checking the symbol
1674 table for external references. */
1675 LANG_FOR_EACH_INPUT_STATEMENT (is)
1677 if (is->the_bfd->my_archive)
1680 bfd *arch = is->the_bfd->my_archive;
1682 if (cur_arch != arch)
1688 is3 && is3->the_bfd->my_archive == arch;
1689 is3 = (lang_input_statement_type *) is3->next)
1691 /* A MS dynamic import library can also contain static
1692 members, so look for the first element with a .dll
1693 extension, and use that for the remainder of the
1695 pnt = strrchr (is3->the_bfd->filename, '.');
1696 if (pnt != NULL && filename_cmp (pnt, ".dll") == 0)
1704 /* OK, found one. Now look to see if the remaining
1705 (dynamic import) members use the same name. */
1707 is2 && is2->the_bfd->my_archive == arch;
1708 is2 = (lang_input_statement_type *) is2->next)
1710 /* Skip static members, ie anything with a .obj
1712 pnt = strrchr (is2->the_bfd->filename, '.');
1713 if (pnt != NULL && filename_cmp (pnt, ".obj") == 0)
1716 if (filename_cmp (is3->the_bfd->filename,
1717 is2->the_bfd->filename))
1726 /* This fragment might have come from an .obj file in a Microsoft
1727 import, and not an actual import record. If this is the case,
1728 then leave the filename alone. */
1729 pnt = strrchr (is->the_bfd->filename, '.');
1731 if (is_ms_arch && (filename_cmp (pnt, ".dll") == 0))
1733 int idata2 = 0, reloc_count=0;
1735 char *new_name, seq;
1737 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1739 if (strcmp (sec->name, ".idata\$2") == 0)
1741 reloc_count += sec->reloc_count;
1744 if (idata2) /* .idata2 is the TOC */
1746 else if (reloc_count > 0) /* thunks */
1751 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1752 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1753 is->the_bfd->filename = new_name;
1755 new_name = xmalloc (strlen (is->filename) + 3);
1756 sprintf (new_name, "%s.%c", is->filename, seq);
1757 is->filename = new_name;
1764 /* The following chunk of code tries to identify jump stubs in
1765 import libraries which are dead code and eliminates them
1766 from the final link. For each exported symbol <sym>, there
1767 is a object file in the import library with a .text section
1768 and several .idata\$* sections. The .text section contains the
1769 symbol definition for <sym> which is a jump stub of the form
1770 jmp *__imp_<sym>. The .idata\$5 contains the symbol definition
1771 for __imp_<sym> which is the address of the slot for <sym> in
1772 the import address table. When a symbol is imported explicitly
1773 using __declspec(dllimport) declaration, the compiler generates
1774 a reference to __imp_<sym> which directly resolves to the
1775 symbol in .idata\$5, in which case the jump stub code is not
1776 needed. The following code tries to identify jump stub sections
1777 in import libraries which are not referred to by anyone and
1778 marks them for exclusion from the final link. */
1779 LANG_FOR_EACH_INPUT_STATEMENT (is)
1781 if (is->the_bfd->my_archive)
1784 asection *sec, *stub_sec = NULL;
1786 /* See if this is an import library thunk. */
1787 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1789 if (strncmp (sec->name, ".idata\$", 7) == 0)
1791 /* The section containing the jmp stub has code
1793 if ((sec->flags & SEC_CODE) && sec->reloc_count)
1797 if (is_imp && stub_sec)
1800 long nsyms, src_count;
1801 struct bfd_link_hash_entry * blhe;
1803 if (!bfd_generic_link_read_symbols (is->the_bfd))
1805 einfo (_("%B%F: could not read symbols: %E\n"),
1809 symbols = bfd_get_outsymbols (is->the_bfd);
1810 nsyms = bfd_get_symcount (is->the_bfd);
1812 for (src_count = 0; src_count < nsyms; src_count++)
1814 if (symbols[src_count]->section->id == stub_sec->id)
1816 /* This symbol belongs to the section containing
1818 blhe = bfd_link_hash_lookup (link_info.hash,
1819 symbols[src_count]->name,
1820 FALSE, FALSE, TRUE);
1821 /* If the symbol in the stub section has no other
1822 undefined references, exclude the stub section
1823 from the final link. */
1825 && blhe->type == bfd_link_hash_defined
1826 && blhe->u.undef.next == NULL
1827 && blhe != link_info.hash->undefs_tail)
1828 stub_sec->flags |= SEC_EXCLUDE;
1838 gld_${EMULATION_NAME}_before_allocation (void)
1840 #ifdef TARGET_IS_ppcpe
1841 /* Here we rummage through the found bfds to collect toc information. */
1843 LANG_FOR_EACH_INPUT_STATEMENT (is)
1845 if (!ppc_process_before_allocation (is->the_bfd, &link_info))
1847 /* xgettext:c-format */
1848 einfo (_("Errors encountered processing file %s\n"), is->filename);
1853 /* We have seen it all. Allocate it, and carry on. */
1854 ppc_allocate_toc_section (&link_info);
1855 #endif /* TARGET_IS_ppcpe */
1857 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1858 /* FIXME: we should be able to set the size of the interworking stub
1861 Here we rummage through the found bfds to collect glue
1862 information. FIXME: should this be based on a command line
1863 option? krk@cygnus.com. */
1865 LANG_FOR_EACH_INPUT_STATEMENT (is)
1867 if (! bfd_arm_process_before_allocation
1868 (is->the_bfd, & link_info, support_old_code))
1870 /* xgettext:c-format */
1871 einfo (_("Errors encountered processing file %s for interworking\n"),
1877 /* We have seen it all. Allocate it, and carry on. */
1878 bfd_arm_allocate_interworking_sections (& link_info);
1879 #endif /* TARGET_IS_armpe || TARGET_IS_arm_epoc_pe || TARGET_IS_arm_wince_pe */
1881 before_allocation_default ();
1885 /* This is called when an input file isn't recognized as a BFD. We
1886 check here for .DEF files and pull them in automatically. */
1889 saw_option (char *option)
1893 for (i = 0; init[i].ptr; i++)
1894 if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0)
1895 return init[i].inited;
1898 #endif /* DLL_SUPPORT */
1901 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1904 const char *ext = entry->filename + strlen (entry->filename) - 4;
1906 if (filename_cmp (ext, ".def") == 0 || filename_cmp (ext, ".DEF") == 0)
1908 pe_def_file = def_file_parse (entry->filename, pe_def_file);
1912 int i, buflen=0, len;
1915 for (i = 0; i < pe_def_file->num_exports; i++)
1917 len = strlen (pe_def_file->exports[i].internal_name);
1918 if (buflen < len + 2)
1922 buf = xmalloc (buflen);
1924 for (i = 0; i < pe_def_file->num_exports; i++)
1926 struct bfd_link_hash_entry *h;
1928 sprintf (buf, "%s%s", U (""),
1929 pe_def_file->exports[i].internal_name);
1931 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1932 if (h == (struct bfd_link_hash_entry *) NULL)
1933 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1934 if (h->type == bfd_link_hash_new)
1936 h->type = bfd_link_hash_undefined;
1937 h->u.undef.abfd = NULL;
1938 bfd_link_add_undef (link_info.hash, h);
1943 /* def_file_print (stdout, pe_def_file); */
1944 if (pe_def_file->is_dll == 1)
1945 link_info.shared = 1;
1947 if (pe_def_file->base_address != (bfd_vma)(-1))
1950 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1951 = init[IMAGEBASEOFF].value
1952 = pe_def_file->base_address;
1953 init[IMAGEBASEOFF].inited = 1;
1954 if (image_base_statement)
1955 image_base_statement->exp
1956 = exp_assign ("__image_base__", exp_intop (pe.ImageBase),
1960 if (pe_def_file->stack_reserve != -1
1961 && ! saw_option ("__size_of_stack_reserve__"))
1963 pe.SizeOfStackReserve = pe_def_file->stack_reserve;
1964 if (pe_def_file->stack_commit != -1)
1965 pe.SizeOfStackCommit = pe_def_file->stack_commit;
1967 if (pe_def_file->heap_reserve != -1
1968 && ! saw_option ("__size_of_heap_reserve__"))
1970 pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
1971 if (pe_def_file->heap_commit != -1)
1972 pe.SizeOfHeapCommit = pe_def_file->heap_commit;
1982 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1985 #ifdef TARGET_IS_i386pe
1986 pe_dll_id_target ("pei-i386");
1988 #ifdef TARGET_IS_shpe
1989 pe_dll_id_target ("pei-shl");
1991 #ifdef TARGET_IS_armpe
1992 pe_dll_id_target ("pei-arm-little");
1994 #ifdef TARGET_IS_arm_epoc_pe
1995 pe_dll_id_target ("epoc-pei-arm-little");
1997 #ifdef TARGET_IS_arm_wince_pe
1998 pe_dll_id_target ("pei-arm-wince-little");
2000 if (pe_bfd_is_dll (entry->the_bfd))
2001 return pe_implied_import_dll (entry->filename);
2007 gld_${EMULATION_NAME}_finish (void)
2009 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
2010 struct bfd_link_hash_entry * h;
2012 if (thumb_entry_symbol != NULL)
2014 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
2015 FALSE, FALSE, TRUE);
2017 if (h != (struct bfd_link_hash_entry *) NULL
2018 && (h->type == bfd_link_hash_defined
2019 || h->type == bfd_link_hash_defweak)
2020 && h->u.def.section->output_section != NULL)
2022 static char buffer[32];
2025 /* Special procesing is required for a Thumb entry symbol. The
2026 bottom bit of its address must be set. */
2027 val = (h->u.def.value
2028 + bfd_get_section_vma (link_info.output_bfd,
2029 h->u.def.section->output_section)
2030 + h->u.def.section->output_offset);
2034 /* Now convert this value into a string and store it in entry_symbol
2035 where the lang_finish() function will pick it up. */
2039 sprintf_vma (buffer + 2, val);
2041 if (entry_symbol.name != NULL && entry_from_cmdline)
2042 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
2043 thumb_entry_symbol, entry_symbol.name);
2044 entry_symbol.name = buffer;
2047 einfo (_("%P: warning: cannot find thumb start symbol %s\n"), thumb_entry_symbol);
2049 #endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) */
2054 if (link_info.shared
2055 #if !defined(TARGET_IS_shpe)
2056 || (!link_info.relocatable && pe_def_file->num_exports != 0)
2060 pe_dll_fill_sections (link_info.output_bfd, &link_info);
2061 if (pe_implib_filename)
2062 pe_dll_generate_implib (pe_def_file, pe_implib_filename, &link_info);
2064 #if defined(TARGET_IS_shpe)
2065 /* ARM doesn't need relocs. */
2068 pe_exe_fill_sections (link_info.output_bfd, &link_info);
2072 if (pe_out_def_filename)
2073 pe_dll_generate_def_file (pe_out_def_filename);
2074 #endif /* DLL_SUPPORT */
2076 /* I don't know where .idata gets set as code, but it shouldn't be. */
2078 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
2082 asec->flags &= ~SEC_CODE;
2083 asec->flags |= SEC_DATA;
2089 /* Place an orphan section.
2091 We use this to put sections in a reasonable place in the file, and
2092 to ensure that they are aligned as required.
2094 We handle grouped sections here as well. A section named .foo\$nn
2095 goes into the output section .foo. All grouped sections are sorted
2098 Grouped sections for the default sections are handled by the
2099 default linker script using wildcards, and are sorted by
2102 static lang_output_section_statement_type *
2103 gld_${EMULATION_NAME}_place_orphan (asection *s,
2104 const char *secname,
2107 const char *orig_secname = secname;
2108 char *dollar = NULL;
2109 lang_output_section_statement_type *os;
2110 lang_statement_list_type add_child;
2111 lang_output_section_statement_type *match_by_name = NULL;
2112 lang_statement_union_type **pl;
2114 /* Look through the script to see where to place this section. */
2115 if (!link_info.relocatable
2116 && (dollar = strchr (secname, '\$')) != NULL)
2118 size_t len = dollar - secname;
2119 char *newname = xmalloc (len + 1);
2120 memcpy (newname, secname, len);
2121 newname[len] = '\0';
2125 lang_list_init (&add_child);
2128 if (constraint == 0)
2129 for (os = lang_output_section_find (secname);
2131 os = next_matching_output_section_statement (os, 0))
2133 /* If we don't match an existing output section, tell
2134 lang_insert_orphan to create a new output section. */
2135 constraint = SPECIAL;
2137 if (os->bfd_section != NULL
2138 && (os->bfd_section->flags == 0
2139 || ((s->flags ^ os->bfd_section->flags)
2140 & (SEC_LOAD | SEC_ALLOC)) == 0))
2142 /* We already have an output section statement with this
2143 name, and its bfd section has compatible flags.
2144 If the section already exists but does not have any flags set,
2145 then it has been created by the linker, probably as a result of
2146 a --section-start command line switch. */
2147 lang_add_section (&add_child, s, NULL, os);
2151 /* Save unused output sections in case we can match them
2152 against orphans later. */
2153 if (os->bfd_section == NULL)
2157 /* If we didn't match an active output section, see if we matched an
2158 unused one and use that. */
2159 if (os == NULL && match_by_name)
2161 lang_add_section (&match_by_name->children, s, NULL, match_by_name);
2162 return match_by_name;
2167 static struct orphan_save hold[] =
2170 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
2173 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
2176 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
2179 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
2185 enum orphan_save_index
2193 static int orphan_init_done = 0;
2194 struct orphan_save *place;
2195 lang_output_section_statement_type *after;
2196 etree_type *address;
2198 if (!orphan_init_done)
2200 struct orphan_save *ho;
2201 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
2202 if (ho->name != NULL)
2204 ho->os = lang_output_section_find (ho->name);
2205 if (ho->os != NULL && ho->os->flags == 0)
2206 ho->os->flags = ho->flags;
2208 orphan_init_done = 1;
2211 /* Try to put the new output section in a reasonable place based
2212 on the section name and section flags. */
2215 if ((s->flags & SEC_ALLOC) == 0)
2217 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
2218 place = &hold[orphan_bss];
2219 else if ((s->flags & SEC_READONLY) == 0)
2220 place = &hold[orphan_data];
2221 else if ((s->flags & SEC_CODE) == 0)
2223 place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata]
2224 : &hold[orphan_rodata]);
2227 place = &hold[orphan_text];
2232 if (place->os == NULL)
2233 place->os = lang_output_section_find (place->name);
2236 after = lang_output_section_find_by_flags (s, &place->os, NULL);
2238 /* *ABS* is always the first output section statement. */
2239 after = (&lang_output_section_statement.head
2240 ->output_section_statement);
2243 /* All sections in an executable must be aligned to a page boundary.
2244 In a relocatable link, just preserve the incoming alignment; the
2245 address is discarded by lang_insert_orphan in that case, anyway. */
2246 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
2247 os = lang_insert_orphan (s, secname, constraint, after, place, address,
2249 if (link_info.relocatable)
2251 os->section_alignment = s->alignment_power;
2252 os->bfd_section->alignment_power = s->alignment_power;
2256 /* If the section name has a '\$', sort it with the other '\$'
2258 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next)
2260 lang_input_section_type *ls;
2263 if ((*pl)->header.type != lang_input_section_enum)
2266 ls = &(*pl)->input_section;
2268 lname = bfd_get_section_name (ls->section->owner, ls->section);
2269 if (strchr (lname, '\$') != NULL
2270 && (dollar == NULL || strcmp (orig_secname, lname) < 0))
2274 if (add_child.head != NULL)
2276 *add_child.tail = *pl;
2277 *pl = add_child.head;
2284 gld_${EMULATION_NAME}_open_dynamic_archive
2285 (const char *arch ATTRIBUTE_UNUSED,
2286 search_dirs_type *search,
2287 lang_input_statement_type *entry)
2291 const char * format;
2292 bfd_boolean use_prefix;
2296 /* Preferred explicit import library for dll's. */
2297 { "lib%s.dll.a", FALSE },
2298 /* Alternate explicit import library for dll's. */
2299 { "%s.dll.a", FALSE },
2300 /* "libfoo.a" could be either an import lib or a static lib.
2301 For backwards compatibility, libfoo.a needs to precede
2302 libfoo.dll and foo.dll in the search. */
2303 { "lib%s.a", FALSE },
2304 /* The 'native' spelling of an import lib name is "foo.lib". */
2305 { "%s.lib", FALSE },
2307 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
2308 { "%s%s.dll", TRUE },
2310 /* Try "libfoo.dll" (default preferred dll name). */
2311 { "lib%s.dll", FALSE },
2312 /* Finally try 'native' dll name "foo.dll". */
2313 { "%s.dll", FALSE },
2314 /* Note: If adding more formats to this table, make sure to check to
2315 see if their length is longer than libname_fmt[0].format, and if
2316 so, update the call to xmalloc() below. */
2319 static unsigned int format_max_len = 0;
2320 const char * filename;
2326 if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
2329 filename = entry->filename;
2331 if (format_max_len == 0)
2332 /* We need to allow space in the memory that we are going to allocate
2333 for the characters in the format string. Since the format array is
2334 static we only need to calculate this information once. In theory
2335 this value could also be computed statically, but this introduces
2336 the possibility for a discrepancy and hence a possible memory
2337 corruption. The lengths we compute here will be too long because
2338 they will include any formating characters (%s) in the strings, but
2339 this will not matter. */
2340 for (i = 0; libname_fmt[i].format; i++)
2341 if (format_max_len < strlen (libname_fmt[i].format))
2342 format_max_len = strlen (libname_fmt[i].format);
2344 full_string = xmalloc (strlen (search->name)
2348 + (pe_dll_search_prefix
2349 ? strlen (pe_dll_search_prefix) : 0)
2351 /* Allow for the terminating NUL and for the path
2352 separator character that is inserted between
2353 search->name and the start of the format string. */
2356 sprintf (full_string, "%s/", search->name);
2357 base_string = full_string + strlen (full_string);
2359 for (i = 0; libname_fmt[i].format; i++)
2362 if (libname_fmt[i].use_prefix)
2364 if (!pe_dll_search_prefix)
2366 sprintf (base_string, libname_fmt[i].format, pe_dll_search_prefix, filename);
2370 sprintf (base_string, libname_fmt[i].format, filename);
2372 if (ldfile_try_open_bfd (full_string, entry))
2376 if (!libname_fmt[i].format)
2382 entry->filename = full_string;
2388 gld_${EMULATION_NAME}_find_potential_libraries
2389 (char *name, lang_input_statement_type *entry)
2391 return ldfile_open_file_search (name, entry, "", ".lib");
2395 gld_${EMULATION_NAME}_get_script (int *isfile)
2397 # Scripts compiled in.
2398 # sed commands to quote an ld script as a C string.
2399 sc="-f stringify.sed"
2405 if (link_info.relocatable && config.build_constructors)
2408 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
2409 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
2410 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
2411 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
2412 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
2413 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
2414 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
2415 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
2416 echo ' ; else if (link_info.pei386_auto_import == 1 && (MERGE_RDATA_V2 || link_info.pei386_runtime_pseudo_reloc != 2)) return' >> e${EMULATION_NAME}.c
2417 sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
2419 echo ' ; else return' >> e${EMULATION_NAME}.c
2420 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
2421 echo '; }' >> e${EMULATION_NAME}.c
2426 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
2428 gld_${EMULATION_NAME}_before_parse,
2431 gld_${EMULATION_NAME}_after_parse,
2432 gld_${EMULATION_NAME}_after_open,
2433 after_allocation_default,
2434 set_output_arch_default,
2435 ldemul_default_target,
2436 gld_${EMULATION_NAME}_before_allocation,
2437 gld_${EMULATION_NAME}_get_script,
2438 "${EMULATION_NAME}",
2440 gld_${EMULATION_NAME}_finish,
2441 NULL, /* Create output section statements. */
2442 gld_${EMULATION_NAME}_open_dynamic_archive,
2443 gld_${EMULATION_NAME}_place_orphan,
2444 gld_${EMULATION_NAME}_set_symbols,
2445 NULL, /* parse_args */
2446 gld${EMULATION_NAME}_add_options,
2447 gld${EMULATION_NAME}_handle_option,
2448 gld_${EMULATION_NAME}_unrecognized_file,
2449 gld_${EMULATION_NAME}_list_options,
2450 gld_${EMULATION_NAME}_recognized_file,
2451 gld_${EMULATION_NAME}_find_potential_libraries,
2452 NULL /* new_vers_pattern. */