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${EMULATION_NAME}.c # there, now line numbers match ;-)
11 /* Copyright (C) 1995-2016 Free Software Foundation, Inc.
13 This file is part of the GNU Binutils.
15 This program is free software; you can redistribute it and/or modify
16 it under the terms of the GNU General Public License as published by
17 the Free Software Foundation; either version 3 of the License, or
18 (at your option) any later version.
20 This program is distributed in the hope that it will be useful,
21 but WITHOUT ANY WARRANTY; without even the implied warranty of
22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 GNU General Public License for more details.
25 You should have received a copy of the GNU General Public License
26 along with this program; if not, write to the Free Software
27 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
28 MA 02110-1301, USA. */
32 /* The original file generated returned different default scripts depending
33 on whether certain switches were set, but these switches pertain to the
34 Linux system and that particular version of coff. In the NT case, we
35 only determine if the subsystem is console or windows in order to select
36 the correct entry point by default. */
38 #define TARGET_IS_${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 = ${SUBSYSTEM};
130 static flagword real_flags = 0;
131 static int support_old_code = 0;
132 static char * thumb_entry_symbol = NULL;
133 static lang_assignment_statement_type *image_base_statement = 0;
134 static unsigned short pe_dll_characteristics = 0;
135 static bfd_boolean insert_timestamp = TRUE;
136 static const char *emit_build_id;
139 static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */
140 static char *pe_out_def_filename = NULL;
141 static char *pe_implib_filename = NULL;
142 static int pe_enable_auto_image_base = 0;
143 static unsigned long pe_auto_image_base = 0x61500000;
144 static char *pe_dll_search_prefix = NULL;
147 extern const char *output_filename;
149 static int is_underscoring (void)
152 if (pe_leading_underscore != -1)
153 return pe_leading_underscore;
154 if (!bfd_get_target_info ("${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_NO_INSERT_TIMESTAMP (OPTION_INSERT_TIMESTAMP + 1)
276 #define OPTION_BUILD_ID (OPTION_NO_INSERT_TIMESTAMP + 1)
279 gld${EMULATION_NAME}_add_options
280 (int ns ATTRIBUTE_UNUSED,
281 char **shortopts ATTRIBUTE_UNUSED,
283 struct option **longopts,
284 int nrl ATTRIBUTE_UNUSED,
285 struct option **really_longopts ATTRIBUTE_UNUSED)
287 static const struct option xtra_long[] =
290 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
291 {"dll", no_argument, NULL, OPTION_DLL},
292 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
293 {"heap", required_argument, NULL, OPTION_HEAP},
294 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
295 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
296 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
297 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
298 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
299 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
300 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
301 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
302 {"stack", required_argument, NULL, OPTION_STACK},
303 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
304 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
305 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
306 {"use-nul-prefixed-import-tables", no_argument, NULL,
307 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},
308 {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE},
309 {"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE},
310 {"insert-timestamp", no_argument, NULL, OPTION_INSERT_TIMESTAMP},
311 {"no-insert-timestamp", no_argument, NULL, OPTION_NO_INSERT_TIMESTAMP},
313 /* getopt allows abbreviations, so we do this to stop it
314 from treating -o as an abbreviation for this option. */
315 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
316 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
317 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
318 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
319 {"exclude-all-symbols", no_argument, NULL, OPTION_EXCLUDE_ALL_SYMBOLS},
320 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
321 {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB},
322 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
323 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
324 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
325 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
326 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
327 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
328 /* getopt() allows abbreviations, so we do this to stop it from
329 treating -c as an abbreviation for these --compat-implib. */
330 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
331 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
332 {"enable-auto-image-base", optional_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
333 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
334 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
335 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
336 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
337 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
338 {"enable-extra-pe-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
339 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
340 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
341 {"enable-runtime-pseudo-reloc-v1", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1},
342 {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2},
344 {"large-address-aware", no_argument, NULL, OPTION_LARGE_ADDRESS_AWARE},
345 {"disable-large-address-aware", no_argument, NULL, OPTION_DISABLE_LARGE_ADDRESS_AWARE},
346 {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES},
347 {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES},
348 {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE},
349 {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY},
350 {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT},
351 {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION},
352 {"no-seh", no_argument, NULL, OPTION_NO_SEH},
353 {"no-bind", no_argument, NULL, OPTION_NO_BIND},
354 {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
355 {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
356 {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
357 {NULL, no_argument, NULL, 0}
361 = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
362 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
365 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
366 parameters which may be input from the command line. */
375 /* FALSE for an assembly level symbol and TRUE for a C visible symbol.
376 C visible symbols can be prefixed by underscore dependent to target's
378 bfd_boolean is_c_symbol;
381 /* Get symbol name dependent to kind and C visible state of
383 #define GET_INIT_SYMBOL_NAME(IDX) \
384 (init[(IDX)].symbol \
385 + ((init[(IDX)].is_c_symbol == FALSE || (is_underscoring () != 0)) ? 0 : 1))
387 /* Decorates the C visible symbol by underscore, if target requires. */
389 ((is_underscoring () == 0) ? CSTR : "_" CSTR)
391 /* Get size of constant string for a possible underscore prefixed
393 #define U_SIZE(CSTR) \
394 (sizeof (CSTR) + (is_underscoring () == 0 ? 0 : 1))
396 #define D(field,symbol,def,usc) {&pe.field, sizeof (pe.field), def, symbol, 0, usc}
398 static definfo init[] =
400 /* imagebase must be first */
401 #define IMAGEBASEOFF 0
402 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE, FALSE),
404 {&dll, sizeof(dll), 0, "__dll__", 0, FALSE},
405 #define MSIMAGEBASEOFF 2
406 D(ImageBase, "___ImageBase", NT_EXE_IMAGE_BASE, TRUE),
407 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT, FALSE),
408 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT, FALSE),
409 D(MajorOperatingSystemVersion,"__major_os_version__", 4, FALSE),
410 D(MinorOperatingSystemVersion,"__minor_os_version__", 0, FALSE),
411 D(MajorImageVersion,"__major_image_version__", 1, FALSE),
412 D(MinorImageVersion,"__minor_image_version__", 0, FALSE),
413 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
414 D(MajorSubsystemVersion,"__major_subsystem_version__", 3, FALSE),
416 D(MajorSubsystemVersion,"__major_subsystem_version__", 4, FALSE),
418 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0, FALSE),
419 D(Subsystem,"__subsystem__", ${SUBSYSTEM}, FALSE),
420 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, FALSE),
421 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, FALSE),
422 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, FALSE),
423 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, FALSE),
424 D(LoaderFlags,"__loader_flags__", 0x0, FALSE),
425 D(DllCharacteristics, "__dll_characteristics__", 0x0, FALSE),
426 { NULL, 0, 0, NULL, 0 , FALSE}
431 gld_${EMULATION_NAME}_list_options (FILE *file)
433 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
434 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
435 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
436 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
437 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
438 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
439 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
440 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
441 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
442 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
443 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
444 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
445 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
446 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
447 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
448 fprintf (file, _(" --[no-]leading-underscore Set explicit symbol underscore prefix mode\n"));
449 fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n"));
450 fprintf (file, _(" --[no-]insert-timestamp Use a real timestamp rather than zero (default).\n"));
451 fprintf (file, _(" This makes binaries non-deterministic\n"));
453 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
454 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
455 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
456 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
457 fprintf (file, _(" --exclude-all-symbols Exclude all symbols from automatic export\n"));
458 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
459 fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n"));
460 fprintf (file, _(" Exclude objects, archive members from auto\n"));
461 fprintf (file, _(" export, place into import library instead.\n"));
462 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
463 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
464 fprintf (file, _(" --out-implib <file> Generate import library\n"));
465 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
466 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports\n"));
467 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
468 create __imp_<SYMBOL> as well.\n"));
469 fprintf (file, _(" --enable-auto-image-base[=<address>] Automatically choose image base for DLLs\n\
470 (optionally starting with address) unless\n\
471 specifically set with --image-base\n"));
472 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));
473 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\
474 an importlib, use <string><basename>.dll\n\
475 in preference to lib<basename>.dll \n"));
476 fprintf (file, _(" --enable-auto-import Do sophisticated linking of _sym to\n\
477 __imp_sym for DATA references\n"));
478 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
479 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\
480 adding pseudo-relocations resolved at\n\
482 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\
483 auto-imported DATA.\n"));
484 fprintf (file, _(" --enable-extra-pe-debug Enable verbose debug output when building\n\
485 or linking to DLLs (esp. auto-import)\n"));
487 fprintf (file, _(" --large-address-aware Executable supports virtual addresses\n\
488 greater than 2 gigabytes\n"));
489 fprintf (file, _(" --disable-large-address-aware Executable does not support virtual\n\
490 addresses greater than 2 gigabytes\n"));
491 fprintf (file, _(" --enable-long-section-names Use long COFF section names even in\n\
492 executable image files\n"));
493 fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\
494 in object files\n"));
495 fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\
496 address space layout randomization (ASLR)\n"));
497 fprintf (file, _(" --forceinteg Code integrity checks are enforced\n"));
498 fprintf (file, _(" --nxcompat Image is compatible with data execution prevention\n"));
499 fprintf (file, _(" --no-isolation Image understands isolation but do not isolate the image\n"));
500 fprintf (file, _(" --no-seh Image does not use SEH. No SE handler may\n\
501 be called in this image\n"));
502 fprintf (file, _(" --no-bind Do not bind this image\n"));
503 fprintf (file, _(" --wdmdriver Driver uses the WDM model\n"));
504 fprintf (file, _(" --tsaware Image is Terminal Server aware\n"));
505 fprintf (file, _(" --build-id[=STYLE] Generate build ID\n"));
510 set_pe_name (char *name, long val)
515 /* Find the name and set it. */
516 for (i = 0; init[i].ptr; i++)
518 if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0)
522 if (strcmp (name,"__image_base__") == 0)
523 set_pe_name (U ("__ImageBase"), val);
531 set_entry_point (void)
534 const char *initial_symbol_char;
544 { 1, "NtProcessStartup" },
545 { 2, "WinMainCRTStartup" },
546 { 3, "mainCRTStartup" },
547 { 7, "__PosixProcessStartup"},
548 { 9, "WinMainCRTStartup" },
549 {14, "mainCRTStartup" },
553 /* Entry point name for arbitrary subsystem numbers. */
554 static const char default_entry[] = "mainCRTStartup";
556 if (bfd_link_pic (&link_info) || dll)
558 #if defined (TARGET_IS_i386pe)
559 entry = "DllMainCRTStartup@12";
561 entry = "DllMainCRTStartup";
566 for (i = 0; v[i].entry; i++)
567 if (v[i].value == pe_subsystem)
570 /* If no match, use the default. */
571 if (v[i].entry != NULL)
574 entry = default_entry;
577 initial_symbol_char = (is_underscoring () != 0 ? "_" : "");
579 if (*initial_symbol_char != '\0')
583 /* lang_default_entry expects its argument to be permanently
584 allocated, so we don't free this string. */
585 alc_entry = xmalloc (strlen (initial_symbol_char)
588 strcpy (alc_entry, initial_symbol_char);
589 strcat (alc_entry, entry);
593 lang_default_entry (entry);
597 set_pe_subsystem (void)
603 unsigned long temp_subsystem;
620 /* Check for the presence of a version number. */
621 sver = strchr (optarg, ':');
623 len = strlen (optarg);
627 set_pe_name ("__major_subsystem_version__",
628 strtoul (sver + 1, &end, 0));
630 set_pe_name ("__minor_subsystem_version__",
631 strtoul (end + 1, &end, 0));
633 einfo (_("%P: warning: bad version number in -subsystem option\n"));
636 /* Check for numeric subsystem. */
637 temp_subsystem = strtoul (optarg, & end, 0);
638 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
640 /* Search list for a numeric match to use its entry point. */
641 for (i = 0; v[i].name; i++)
642 if (v[i].value == (int) temp_subsystem)
645 /* Use this subsystem. */
646 pe_subsystem = (int) temp_subsystem;
650 /* Search for subsystem by name. */
651 for (i = 0; v[i].name; i++)
652 if (strncmp (optarg, v[i].name, len) == 0
653 && v[i].name[len] == '\0')
656 if (v[i].name == NULL)
658 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
662 pe_subsystem = v[i].value;
665 set_pe_name ("__subsystem__", pe_subsystem);
672 set_pe_value (char *name)
676 set_pe_name (name, strtoul (optarg, &end, 0));
679 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
686 set_pe_stack_heap (char *resname, char *comname)
688 set_pe_value (resname);
693 set_pe_value (comname);
696 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
699 #define DEFAULT_BUILD_ID_STYLE "md5"
702 gld${EMULATION_NAME}_handle_option (int optc)
709 case OPTION_BASE_FILE:
710 link_info.base_file = fopen (optarg, FOPEN_WB);
711 if (link_info.base_file == NULL)
712 einfo (_("%F%P: cannot open base file %s\n"), optarg);
717 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
720 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
722 case OPTION_SUBSYSTEM:
725 case OPTION_MAJOR_OS_VERSION:
726 set_pe_value ("__major_os_version__");
728 case OPTION_MINOR_OS_VERSION:
729 set_pe_value ("__minor_os_version__");
731 case OPTION_MAJOR_SUBSYSTEM_VERSION:
732 set_pe_value ("__major_subsystem_version__");
734 case OPTION_MINOR_SUBSYSTEM_VERSION:
735 set_pe_value ("__minor_subsystem_version__");
737 case OPTION_MAJOR_IMAGE_VERSION:
738 set_pe_value ("__major_image_version__");
740 case OPTION_MINOR_IMAGE_VERSION:
741 set_pe_value ("__minor_image_version__");
743 case OPTION_FILE_ALIGNMENT:
744 set_pe_value ("__file_alignment__");
746 case OPTION_SECTION_ALIGNMENT:
747 set_pe_value ("__section_alignment__");
750 set_pe_name ("__dll__", 1);
752 case OPTION_IMAGE_BASE:
753 set_pe_value ("__image_base__");
755 case OPTION_SUPPORT_OLD_CODE:
756 support_old_code = 1;
758 case OPTION_THUMB_ENTRY:
759 thumb_entry_symbol = optarg;
761 case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
762 pe_use_nul_prefixed_import_tables = TRUE;
764 case OPTION_NO_LEADING_UNDERSCORE:
765 pe_leading_underscore = 0;
767 case OPTION_LEADING_UNDERSCORE:
768 pe_leading_underscore = 1;
770 case OPTION_INSERT_TIMESTAMP:
771 insert_timestamp = TRUE;
773 case OPTION_NO_INSERT_TIMESTAMP:
774 insert_timestamp = FALSE;
778 pe_out_def_filename = xstrdup (optarg);
780 case OPTION_EXPORT_ALL:
781 pe_dll_export_everything = 1;
783 case OPTION_EXCLUDE_SYMBOLS:
784 pe_dll_add_excludes (optarg, EXCLUDESYMS);
786 case OPTION_EXCLUDE_ALL_SYMBOLS:
787 pe_dll_exclude_all_symbols = 1;
789 case OPTION_EXCLUDE_LIBS:
790 pe_dll_add_excludes (optarg, EXCLUDELIBS);
792 case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
793 pe_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
795 case OPTION_KILL_ATS:
798 case OPTION_STDCALL_ALIASES:
799 pe_dll_stdcall_aliases = 1;
801 case OPTION_ENABLE_STDCALL_FIXUP:
802 pe_enable_stdcall_fixup = 1;
804 case OPTION_DISABLE_STDCALL_FIXUP:
805 pe_enable_stdcall_fixup = 0;
807 case OPTION_IMPLIB_FILENAME:
808 pe_implib_filename = xstrdup (optarg);
810 case OPTION_WARN_DUPLICATE_EXPORTS:
811 pe_dll_warn_dup_exports = 1;
813 case OPTION_IMP_COMPAT:
814 pe_dll_compat_implib = 1;
816 case OPTION_ENABLE_AUTO_IMAGE_BASE:
817 pe_enable_auto_image_base = 1;
818 if (optarg && *optarg)
821 pe_auto_image_base = strtoul (optarg, &end, 0);
822 /* XXX should check that we actually parsed something */
825 case OPTION_DISABLE_AUTO_IMAGE_BASE:
826 pe_enable_auto_image_base = 0;
828 case OPTION_DLL_SEARCH_PREFIX:
829 pe_dll_search_prefix = xstrdup (optarg);
831 case OPTION_NO_DEFAULT_EXCLUDES:
832 pe_dll_do_default_excludes = 0;
834 case OPTION_DLL_ENABLE_AUTO_IMPORT:
835 link_info.pei386_auto_import = 1;
837 case OPTION_DLL_DISABLE_AUTO_IMPORT:
838 link_info.pei386_auto_import = 0;
840 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
841 link_info.pei386_runtime_pseudo_reloc =
842 DEFAULT_PSEUDO_RELOC_VERSION;
844 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1:
845 link_info.pei386_runtime_pseudo_reloc = 1;
847 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
848 link_info.pei386_runtime_pseudo_reloc = 2;
850 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
851 link_info.pei386_runtime_pseudo_reloc = 0;
853 case OPTION_ENABLE_EXTRA_PE_DEBUG:
854 pe_dll_extra_pe_debug = 1;
857 case OPTION_LARGE_ADDRESS_AWARE:
858 real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
860 case OPTION_DISABLE_LARGE_ADDRESS_AWARE:
861 real_flags &= ~ IMAGE_FILE_LARGE_ADDRESS_AWARE;
863 case OPTION_ENABLE_LONG_SECTION_NAMES:
864 pe_use_coff_long_section_names = 1;
866 case OPTION_DISABLE_LONG_SECTION_NAMES:
867 pe_use_coff_long_section_names = 0;
869 /* Get DLLCharacteristics bits */
870 case OPTION_DYNAMIC_BASE:
871 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
873 case OPTION_FORCE_INTEGRITY:
874 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY;
876 case OPTION_NX_COMPAT:
877 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
879 case OPTION_NO_ISOLATION:
880 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
883 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH;
886 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND;
888 case OPTION_WDM_DRIVER:
889 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER;
891 case OPTION_TERMINAL_SERVER_AWARE:
892 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
894 case OPTION_BUILD_ID:
895 if (emit_build_id != NULL)
897 free ((char *) emit_build_id);
898 emit_build_id = NULL;
901 optarg = DEFAULT_BUILD_ID_STYLE;
902 if (strcmp (optarg, "none"))
903 emit_build_id = xstrdup (optarg);
907 /* Set DLLCharacteristics bits */
908 set_pe_name ("__dll_characteristics__", pe_dll_characteristics);
916 strhash (const char *str)
918 const unsigned char *s;
925 s = (const unsigned char *) str;
926 while ((c = *s++) != '\0')
928 hash += c + (c << 17);
932 hash += len + (len << 17);
938 /* Use the output file to create a image base for relocatable DLLs. */
941 compute_dll_image_base (const char *ofile)
943 unsigned long hash = strhash (ofile);
944 return pe_auto_image_base + ((hash << 16) & 0x0FFC0000);
948 /* Assign values to the special symbols before the linker script is
952 gld_${EMULATION_NAME}_set_symbols (void)
954 /* Run through and invent symbols for all the
955 names and insert the defaults. */
960 if (!init[IMAGEBASEOFF].inited)
962 if (bfd_link_relocatable (&link_info))
963 init[IMAGEBASEOFF].value = 0;
964 else if (init[DLLOFF].value || bfd_link_dll (&link_info))
967 init[IMAGEBASEOFF].value = (pe_enable_auto_image_base
968 ? compute_dll_image_base (output_filename)
969 : NT_DLL_IMAGE_BASE);
971 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
975 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
976 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
979 /* Don't do any symbol assignments if this is a relocatable link. */
980 if (bfd_link_relocatable (&link_info))
983 /* Glue the assignments into the abs section. */
984 push_stat_ptr (&abs_output_section->children);
986 for (j = 0; init[j].ptr; j++)
988 long val = init[j].value;
989 lang_assignment_statement_type *rv;
991 rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j),
992 exp_intop (val), FALSE));
993 if (init[j].size == sizeof (short))
994 *(short *) init[j].ptr = val;
995 else if (init[j].size == sizeof (int))
996 *(int *) init[j].ptr = val;
997 else if (init[j].size == sizeof (long))
998 *(long *) init[j].ptr = val;
999 /* This might be a long long or other special type. */
1000 else if (init[j].size == sizeof (bfd_vma))
1001 *(bfd_vma *) init[j].ptr = val;
1003 if (j == IMAGEBASEOFF)
1004 image_base_statement = rv;
1006 /* Restore the pointer. */
1009 if (pe.FileAlignment > pe.SectionAlignment)
1011 einfo (_("%P: warning, file alignment > section alignment.\n"));
1015 /* This is called after the linker script and the command line options
1019 gld_${EMULATION_NAME}_after_parse (void)
1021 /* PR ld/6744: Warn the user if they have used an ELF-only
1022 option hoping it will work on PE. */
1023 if (link_info.export_dynamic)
1024 einfo (_("%P: warning: --export-dynamic is not supported for PE "
1025 "targets, did you mean --export-all-symbols?\n"));
1029 after_parse_default ();
1032 /* pe-dll.c directly accesses pe_data_import_dll,
1033 so it must be defined outside of #ifdef DLL_SUPPORT.
1034 Note - this variable is deliberately not initialised.
1035 This allows it to be treated as a common varaible, and only
1036 exist in one incarnation in a multiple target enabled linker. */
1037 char * pe_data_import_dll;
1040 static struct bfd_link_hash_entry *pe_undef_found_sym;
1043 pe_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
1047 const char *hs = h->root.string;
1049 sl = strlen (string);
1050 if (h->type == bfd_link_hash_defined
1051 && ((*hs == '@' && *string == '_'
1052 && strncmp (hs + 1, string + 1, sl - 1) == 0)
1053 || strncmp (hs, string, sl) == 0)
1054 && h->root.string[sl] == '@')
1056 pe_undef_found_sym = h;
1063 pe_fixup_stdcalls (void)
1065 static int gave_warning_message = 0;
1066 struct bfd_link_hash_entry *undef, *sym;
1068 if (pe_dll_extra_pe_debug)
1069 printf ("%s\n", __FUNCTION__);
1071 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
1072 if (undef->type == bfd_link_hash_undefined)
1074 char* at = strchr (undef->root.string, '@');
1075 int lead_at = (*undef->root.string == '@');
1077 at = strchr (undef->root.string + 1, '@');
1081 /* The symbol is a stdcall symbol, so let's look for a
1082 cdecl symbol with the same name and resolve to that. */
1083 char *cname = xstrdup (undef->root.string);
1087 at = strchr (cname, '@');
1090 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
1092 if (sym && sym->type == bfd_link_hash_defined)
1094 undef->type = bfd_link_hash_defined;
1095 undef->u.def.value = sym->u.def.value;
1096 undef->u.def.section = sym->u.def.section;
1098 if (pe_enable_stdcall_fixup == -1)
1100 einfo (_("Warning: resolving %s by linking to %s\n"),
1101 undef->root.string, cname);
1102 if (! gave_warning_message)
1104 gave_warning_message = 1;
1105 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1106 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1113 /* The symbol is a cdecl symbol, so we look for stdcall
1114 symbols - which means scanning the whole symbol table. */
1115 pe_undef_found_sym = 0;
1116 bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
1117 (char *) undef->root.string);
1118 sym = pe_undef_found_sym;
1121 undef->type = bfd_link_hash_defined;
1122 undef->u.def.value = sym->u.def.value;
1123 undef->u.def.section = sym->u.def.section;
1125 if (pe_enable_stdcall_fixup == -1)
1127 einfo (_("Warning: resolving %s by linking to %s\n"),
1128 undef->root.string, sym->root.string);
1129 if (! gave_warning_message)
1131 gave_warning_message = 1;
1132 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1133 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1142 make_import_fixup (arelent *rel, asection *s)
1144 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
1147 if (pe_dll_extra_pe_debug)
1148 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
1149 (unsigned long) rel->address, (long) rel->addend);
1151 if (! bfd_get_section_contents (s->owner, s, addend, rel->address, sizeof (addend)))
1152 einfo (_("%C: Cannot get section contents - auto-import exception\n"),
1153 s->owner, s, rel->address);
1155 pe_create_import_fixup (rel, s, bfd_get_32 (s->owner, addend));
1161 pe_find_data_imports (void)
1163 struct bfd_link_hash_entry *undef, *sym;
1165 if (link_info.pei386_auto_import == 0)
1168 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
1170 if (undef->type == bfd_link_hash_undefined)
1172 /* C++ symbols are *long*. */
1173 #define BUF_SIZE 4096
1176 if (pe_dll_extra_pe_debug)
1177 printf ("%s:%s\n", __FUNCTION__, undef->root.string);
1179 if (strlen (undef->root.string) > (BUF_SIZE - 6))
1181 /* PR linker/18466. */
1182 einfo (_("%P: internal error: symbol too long: %s\n"),
1183 undef->root.string);
1187 sprintf (buf, "__imp_%s", undef->root.string);
1189 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
1191 if (sym && sym->type == bfd_link_hash_defined)
1193 bfd *b = sym->u.def.section->owner;
1197 if (link_info.pei386_auto_import == -1)
1199 static bfd_boolean warned = FALSE;
1201 info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"),
1202 undef->root.string, buf);
1204 /* PR linker/4844. */
1208 einfo (_("%P: warning: auto-importing has been activated without --enable-auto-import specified on the command line.\n\
1209 This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.\n"));
1213 if (!bfd_generic_link_read_symbols (b))
1215 einfo (_("%B%F: could not read symbols: %E\n"), b);
1219 symbols = bfd_get_outsymbols (b);
1220 nsyms = bfd_get_symcount (b);
1222 for (i = 0; i < nsyms; i++)
1224 if (! CONST_STRNEQ (symbols[i]->name,
1228 if (pe_dll_extra_pe_debug)
1229 printf ("->%s\n", symbols[i]->name);
1231 pe_data_import_dll = (char *) (symbols[i]->name
1232 + U_SIZE ("_head_") - 1);
1236 pe_walk_relocs_of_symbol (&link_info, undef->root.string,
1239 /* Let's differentiate it somehow from defined. */
1240 undef->type = bfd_link_hash_defweak;
1241 /* We replace original name with __imp_ prefixed, this
1242 1) may trash memory 2) leads to duplicate symbol generation.
1243 Still, IMHO it's better than having name poluted. */
1244 undef->root.string = sym->root.string;
1245 undef->u.def.value = sym->u.def.value;
1246 undef->u.def.section = sym->u.def.section;
1253 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
1255 printf ("+%s\n", h->string);
1259 #endif /* DLL_SUPPORT */
1262 debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
1264 int *found = (int *) obj;
1265 if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
1270 pecoff_checksum_contents (bfd *abfd,
1271 void (*process) (const void *, size_t, void *),
1274 file_ptr filepos = (file_ptr) 0;
1281 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
1284 status = bfd_bread (&b, (bfd_size_type) 1, abfd);
1290 (*process) (&b, 1, arg);
1298 write_build_id (bfd *abfd)
1300 struct pe_tdata *t = pe_data (abfd);
1302 struct bfd_link_order *link_order = NULL;
1303 unsigned char *contents;
1305 bfd_size_type build_id_size;
1306 unsigned char *build_id;
1308 /* Find the section the .buildid output section has been merged info. */
1309 for (asec = abfd->sections; asec != NULL; asec = asec->next)
1311 struct bfd_link_order *l = NULL;
1312 for (l = asec->map_head.link_order; l != NULL; l = l->next)
1314 if (l->type == bfd_indirect_link_order)
1316 if (l->u.indirect.section == t->build_id.sec)
1330 einfo (_("%P: warning: .buildid section discarded,"
1331 " --build-id ignored.\n"));
1335 if (t->build_id.sec->contents == NULL)
1336 t->build_id.sec->contents = (unsigned char *) xmalloc (t->build_id.sec->size);
1337 contents = t->build_id.sec->contents;
1338 size = t->build_id.sec->size;
1340 build_id_size = compute_build_id_size (t->build_id.style);
1341 build_id = xmalloc (build_id_size);
1342 generate_build_id (abfd, t->build_id.style, pecoff_checksum_contents, build_id, build_id_size);
1344 bfd_vma ib = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase;
1346 /* Construct a debug directory entry which points to an immediately following CodeView record. */
1347 struct internal_IMAGE_DEBUG_DIRECTORY idd;
1348 idd.Characteristics = 0;
1349 idd.TimeDateStamp = 0;
1350 idd.MajorVersion = 0;
1351 idd.MinorVersion = 0;
1352 idd.Type = PE_IMAGE_DEBUG_TYPE_CODEVIEW;
1353 idd.SizeOfData = sizeof (CV_INFO_PDB70) + 1;
1354 idd.AddressOfRawData = asec->vma - ib + link_order->offset
1355 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1356 idd.PointerToRawData = asec->filepos + link_order->offset
1357 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1359 struct external_IMAGE_DEBUG_DIRECTORY *ext = (struct external_IMAGE_DEBUG_DIRECTORY *)contents;
1360 _bfd_XXi_swap_debugdir_out (abfd, &idd, ext);
1362 /* Write the debug directory entry. */
1363 if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0)
1366 if (bfd_bwrite (contents, size, abfd) != size)
1369 /* Construct the CodeView record. */
1370 CODEVIEW_INFO cvinfo;
1371 cvinfo.CVSignature = CVINFO_PDB70_CVSIGNATURE;
1374 /* Zero pad or truncate the generated build_id to fit in the CodeView record. */
1375 memset (&(cvinfo.Signature), 0, CV_INFO_SIGNATURE_LENGTH);
1376 memcpy (&(cvinfo.Signature), build_id, (build_id_size > CV_INFO_SIGNATURE_LENGTH)
1377 ? CV_INFO_SIGNATURE_LENGTH : build_id_size);
1381 /* Write the codeview record. */
1382 if (_bfd_XXi_write_codeview_record (abfd, idd.PointerToRawData, &cvinfo) == 0)
1385 /* Record the location of the debug directory in the data directory. */
1386 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress
1387 = asec->vma - ib + link_order->offset;
1388 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size
1389 = sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1394 /* Make .buildid section, and set up coff_tdata->build_id. */
1396 setup_build_id (bfd *ibfd)
1401 if (!validate_build_id_style (emit_build_id))
1403 einfo ("%P: warning: unrecognized --build-id style ignored.\n");
1407 flags = (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
1408 | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
1409 s = bfd_make_section_anyway_with_flags (ibfd, ".buildid", flags);
1412 struct pe_tdata *t = pe_data (link_info.output_bfd);
1413 t->build_id.after_write_object_contents = &write_build_id;
1414 t->build_id.style = emit_build_id;
1415 t->build_id.sec = s;
1417 /* Section is a fixed size:
1418 One IMAGE_DEBUG_DIRECTORY entry, of type IMAGE_DEBUG_TYPE_CODEVIEW,
1419 pointing at a CV_INFO_PDB70 record containing the build-id, with a
1420 null byte for PdbFileName. */
1421 s->size = sizeof (struct external_IMAGE_DEBUG_DIRECTORY)
1422 + sizeof (CV_INFO_PDB70) + 1;
1427 einfo ("%P: warning: Cannot create .buildid section,"
1428 " --build-id ignored.\n");
1433 gld_${EMULATION_NAME}_after_open (void)
1435 after_open_default ();
1438 if (pe_dll_extra_pe_debug)
1441 struct bfd_link_hash_entry *sym;
1443 printf ("%s()\n", __FUNCTION__);
1445 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1446 printf ("-%s\n", sym->root.string);
1447 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1449 for (a = link_info.input_bfds; a; a = a->link.next)
1450 printf ("*%s\n",a->filename);
1454 if (emit_build_id != NULL)
1458 /* Find a COFF input. */
1459 for (abfd = link_info.input_bfds;
1460 abfd != (bfd *) NULL; abfd = abfd->link.next)
1461 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
1464 /* If there are no COFF input files do not try to
1465 add a build-id section. */
1467 || !setup_build_id (abfd))
1469 free ((char *) emit_build_id);
1470 emit_build_id = NULL;
1474 /* Pass the wacky PE command line options into the output bfd.
1475 FIXME: This should be done via a function, rather than by
1476 including an internal BFD header. */
1478 if (coff_data (link_info.output_bfd) == NULL
1479 || coff_data (link_info.output_bfd)->pe == 0)
1480 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"),
1481 link_info.output_bfd);
1483 pe_data (link_info.output_bfd)->pe_opthdr = pe;
1484 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1485 pe_data (link_info.output_bfd)->real_flags |= real_flags;
1486 pe_data (link_info.output_bfd)->insert_timestamp = insert_timestamp;
1488 /* At this point we must decide whether to use long section names
1489 in the output or not. If the user hasn't explicitly specified
1490 on the command line, we leave it to the default for the format
1491 (object files yes, image files no), except if there is debug
1492 information present; GDB relies on the long section names to
1493 find it, so enable it in that case. */
1494 if (pe_use_coff_long_section_names < 0 && link_info.strip == strip_none)
1496 if (bfd_link_relocatable (&link_info))
1497 pe_use_coff_long_section_names = 1;
1500 /* Iterate over all sections of all input BFDs, checking
1501 for any that begin 'debug_' and are long names. */
1502 LANG_FOR_EACH_INPUT_STATEMENT (is)
1504 int found_debug = 0;
1506 bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
1509 pe_use_coff_long_section_names = 1;
1516 pe_output_file_set_long_section_names (link_info.output_bfd);
1519 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
1520 pe_fixup_stdcalls ();
1522 pe_process_import_defs (link_info.output_bfd, &link_info);
1524 pe_find_data_imports ();
1526 /* As possibly new symbols are added by imports, we rerun
1527 stdcall/fastcall fixup here. */
1528 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
1529 pe_fixup_stdcalls ();
1531 #if defined (TARGET_IS_i386pe) \
1532 || defined (TARGET_IS_armpe) \
1533 || defined (TARGET_IS_arm_epoc_pe) \
1534 || defined (TARGET_IS_arm_wince_pe)
1535 if (!bfd_link_relocatable (&link_info))
1536 pe_dll_build_sections (link_info.output_bfd, &link_info);
1538 if (bfd_link_pic (&link_info))
1539 pe_dll_build_sections (link_info.output_bfd, &link_info);
1541 pe_exe_build_sections (link_info.output_bfd, &link_info);
1543 #endif /* DLL_SUPPORT */
1545 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1546 if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
1548 /* The arm backend needs special fields in the output hash structure.
1549 These will only be created if the output format is an arm format,
1550 hence we do not support linking and changing output formats at the
1551 same time. Use a link followed by objcopy to change output formats. */
1552 einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
1556 /* Find a BFD that can hold the interworking stubs. */
1557 LANG_FOR_EACH_INPUT_STATEMENT (is)
1559 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
1566 /* This next chunk of code tries to detect the case where you have
1567 two import libraries for the same DLL (specifically,
1568 symbolically linking libm.a and libc.a in cygwin to
1569 libcygwin.a). In those cases, it's possible for function
1570 thunks from the second implib to be used but without the
1571 head/tail objects, causing an improper import table. We detect
1572 those cases and rename the "other" import libraries to match
1573 the one the head/tail come from, so that the linker will sort
1574 things nicely and produce a valid import table. */
1576 LANG_FOR_EACH_INPUT_STATEMENT (is)
1578 if (is->the_bfd->my_archive)
1580 int idata2 = 0, reloc_count=0, is_imp = 0;
1583 /* See if this is an import library thunk. */
1584 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1586 if (strcmp (sec->name, ".idata\$2") == 0)
1588 if (CONST_STRNEQ (sec->name, ".idata\$"))
1590 reloc_count += sec->reloc_count;
1593 if (is_imp && !idata2 && reloc_count)
1595 /* It is, look for the reference to head and see if it's
1596 from our own library. */
1597 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1605 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1609 if (!bfd_generic_link_read_symbols (is->the_bfd))
1611 einfo (_("%B%F: could not read symbols: %E\n"),
1615 symbols = bfd_get_outsymbols (is->the_bfd);
1617 relocs = xmalloc ((size_t) relsize);
1618 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1623 einfo ("%X%P: unable to process relocs: %E\n");
1627 for (i = 0; i < nrelocs; i++)
1629 struct bfd_symbol *s;
1630 struct bfd_link_hash_entry * blhe;
1631 char *other_bfd_filename;
1634 s = (relocs[i]->sym_ptr_ptr)[0];
1636 if (s->flags & BSF_LOCAL)
1639 /* Thunk section with reloc to another bfd. */
1640 blhe = bfd_link_hash_lookup (link_info.hash,
1642 FALSE, FALSE, TRUE);
1645 || blhe->type != bfd_link_hash_defined)
1649 = blhe->u.def.section->owner->my_archive
1650 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1651 : bfd_get_filename (blhe->u.def.section->owner);
1653 if (filename_cmp (bfd_get_filename
1654 (is->the_bfd->my_archive),
1655 other_bfd_filename) == 0)
1658 /* Rename this implib to match the other one. */
1659 n = xmalloc (strlen (other_bfd_filename) + 1);
1660 strcpy (n, other_bfd_filename);
1661 is->the_bfd->my_archive->filename = n;
1665 /* Note - we do not free the symbols,
1666 they are now cached in the BFD. */
1676 lang_input_statement_type *is2;
1677 lang_input_statement_type *is3;
1679 /* Careful - this is a shell script. Watch those dollar signs! */
1680 /* Microsoft import libraries have every member named the same,
1681 and not in the right order for us to link them correctly. We
1682 must detect these and rename the members so that they'll link
1683 correctly. There are three types of objects: the head, the
1684 thunks, and the sentinel(s). The head is easy; it's the one
1685 with idata2. We assume that the sentinels won't have relocs,
1686 and the thunks will. It's easier than checking the symbol
1687 table for external references. */
1688 LANG_FOR_EACH_INPUT_STATEMENT (is)
1690 if (is->the_bfd->my_archive)
1693 bfd *arch = is->the_bfd->my_archive;
1695 if (cur_arch != arch)
1701 is3 && is3->the_bfd->my_archive == arch;
1702 is3 = (lang_input_statement_type *) is3->next)
1704 /* A MS dynamic import library can also contain static
1705 members, so look for the first element with a .dll
1706 extension, and use that for the remainder of the
1708 pnt = strrchr (is3->the_bfd->filename, '.');
1709 if (pnt != NULL && filename_cmp (pnt, ".dll") == 0)
1717 /* OK, found one. Now look to see if the remaining
1718 (dynamic import) members use the same name. */
1720 is2 && is2->the_bfd->my_archive == arch;
1721 is2 = (lang_input_statement_type *) is2->next)
1723 /* Skip static members, ie anything with a .obj
1725 pnt = strrchr (is2->the_bfd->filename, '.');
1726 if (pnt != NULL && filename_cmp (pnt, ".obj") == 0)
1729 if (filename_cmp (is3->the_bfd->filename,
1730 is2->the_bfd->filename))
1739 /* This fragment might have come from an .obj file in a Microsoft
1740 import, and not an actual import record. If this is the case,
1741 then leave the filename alone. */
1742 pnt = strrchr (is->the_bfd->filename, '.');
1744 if (is_ms_arch && (filename_cmp (pnt, ".dll") == 0))
1746 int idata2 = 0, reloc_count=0;
1748 char *new_name, seq;
1750 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1752 if (strcmp (sec->name, ".idata\$2") == 0)
1754 reloc_count += sec->reloc_count;
1757 if (idata2) /* .idata2 is the TOC */
1759 else if (reloc_count > 0) /* thunks */
1764 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1765 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1766 is->the_bfd->filename = new_name;
1768 new_name = xmalloc (strlen (is->filename) + 3);
1769 sprintf (new_name, "%s.%c", is->filename, seq);
1770 is->filename = new_name;
1777 /* The following chunk of code tries to identify jump stubs in
1778 import libraries which are dead code and eliminates them
1779 from the final link. For each exported symbol <sym>, there
1780 is a object file in the import library with a .text section
1781 and several .idata\$* sections. The .text section contains the
1782 symbol definition for <sym> which is a jump stub of the form
1783 jmp *__imp_<sym>. The .idata\$5 contains the symbol definition
1784 for __imp_<sym> which is the address of the slot for <sym> in
1785 the import address table. When a symbol is imported explicitly
1786 using __declspec(dllimport) declaration, the compiler generates
1787 a reference to __imp_<sym> which directly resolves to the
1788 symbol in .idata\$5, in which case the jump stub code is not
1789 needed. The following code tries to identify jump stub sections
1790 in import libraries which are not referred to by anyone and
1791 marks them for exclusion from the final link. */
1792 LANG_FOR_EACH_INPUT_STATEMENT (is)
1794 if (is->the_bfd->my_archive)
1797 asection *sec, *stub_sec = NULL;
1799 /* See if this is an import library thunk. */
1800 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1802 if (strncmp (sec->name, ".idata\$", 7) == 0)
1804 /* The section containing the jmp stub has code
1806 if ((sec->flags & SEC_CODE) && sec->reloc_count)
1810 if (is_imp && stub_sec)
1813 long nsyms, src_count;
1814 struct bfd_link_hash_entry * blhe;
1816 if (!bfd_generic_link_read_symbols (is->the_bfd))
1818 einfo (_("%B%F: could not read symbols: %E\n"),
1822 symbols = bfd_get_outsymbols (is->the_bfd);
1823 nsyms = bfd_get_symcount (is->the_bfd);
1825 for (src_count = 0; src_count < nsyms; src_count++)
1827 if (symbols[src_count]->section->id == stub_sec->id)
1829 /* This symbol belongs to the section containing
1831 blhe = bfd_link_hash_lookup (link_info.hash,
1832 symbols[src_count]->name,
1833 FALSE, FALSE, TRUE);
1834 /* If the symbol in the stub section has no other
1835 undefined references, exclude the stub section
1836 from the final link. */
1838 && blhe->type == bfd_link_hash_defined
1839 && blhe->u.undef.next == NULL
1840 && blhe != link_info.hash->undefs_tail)
1841 stub_sec->flags |= SEC_EXCLUDE;
1851 gld_${EMULATION_NAME}_before_allocation (void)
1853 #ifdef TARGET_IS_ppcpe
1854 /* Here we rummage through the found bfds to collect toc information. */
1856 LANG_FOR_EACH_INPUT_STATEMENT (is)
1858 if (!ppc_process_before_allocation (is->the_bfd, &link_info))
1860 /* xgettext:c-format */
1861 einfo (_("Errors encountered processing file %s\n"), is->filename);
1866 /* We have seen it all. Allocate it, and carry on. */
1867 ppc_allocate_toc_section (&link_info);
1868 #endif /* TARGET_IS_ppcpe */
1870 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1871 /* FIXME: we should be able to set the size of the interworking stub
1874 Here we rummage through the found bfds to collect glue
1875 information. FIXME: should this be based on a command line
1876 option? krk@cygnus.com. */
1878 LANG_FOR_EACH_INPUT_STATEMENT (is)
1880 if (! bfd_arm_process_before_allocation
1881 (is->the_bfd, & link_info, support_old_code))
1883 /* xgettext:c-format */
1884 einfo (_("Errors encountered processing file %s for interworking\n"),
1890 /* We have seen it all. Allocate it, and carry on. */
1891 bfd_arm_allocate_interworking_sections (& link_info);
1892 #endif /* TARGET_IS_armpe || TARGET_IS_arm_epoc_pe || TARGET_IS_arm_wince_pe */
1894 before_allocation_default ();
1898 /* This is called when an input file isn't recognized as a BFD. We
1899 check here for .DEF files and pull them in automatically. */
1902 saw_option (char *option)
1906 for (i = 0; init[i].ptr; i++)
1907 if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0)
1908 return init[i].inited;
1911 #endif /* DLL_SUPPORT */
1914 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1917 const char *ext = entry->filename + strlen (entry->filename) - 4;
1919 if (filename_cmp (ext, ".def") == 0 || filename_cmp (ext, ".DEF") == 0)
1921 pe_def_file = def_file_parse (entry->filename, pe_def_file);
1925 int i, buflen=0, len;
1928 for (i = 0; i < pe_def_file->num_exports; i++)
1930 len = strlen (pe_def_file->exports[i].internal_name);
1931 if (buflen < len + 2)
1935 buf = xmalloc (buflen);
1937 for (i = 0; i < pe_def_file->num_exports; i++)
1939 struct bfd_link_hash_entry *h;
1941 sprintf (buf, "%s%s", U (""),
1942 pe_def_file->exports[i].internal_name);
1944 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1945 if (h == (struct bfd_link_hash_entry *) NULL)
1946 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1947 if (h->type == bfd_link_hash_new)
1949 h->type = bfd_link_hash_undefined;
1950 h->u.undef.abfd = NULL;
1951 bfd_link_add_undef (link_info.hash, h);
1956 /* def_file_print (stdout, pe_def_file); */
1957 if (pe_def_file->is_dll == 1)
1958 link_info.type = type_dll;
1960 if (pe_def_file->base_address != (bfd_vma)(-1))
1963 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1964 = init[IMAGEBASEOFF].value
1965 = pe_def_file->base_address;
1966 init[IMAGEBASEOFF].inited = 1;
1967 if (image_base_statement)
1968 image_base_statement->exp
1969 = exp_assign ("__image_base__", exp_intop (pe.ImageBase),
1973 if (pe_def_file->stack_reserve != -1
1974 && ! saw_option ("__size_of_stack_reserve__"))
1976 pe.SizeOfStackReserve = pe_def_file->stack_reserve;
1977 if (pe_def_file->stack_commit != -1)
1978 pe.SizeOfStackCommit = pe_def_file->stack_commit;
1980 if (pe_def_file->heap_reserve != -1
1981 && ! saw_option ("__size_of_heap_reserve__"))
1983 pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
1984 if (pe_def_file->heap_commit != -1)
1985 pe.SizeOfHeapCommit = pe_def_file->heap_commit;
1995 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1998 #ifdef TARGET_IS_i386pe
1999 pe_dll_id_target ("pei-i386");
2001 #ifdef TARGET_IS_shpe
2002 pe_dll_id_target ("pei-shl");
2004 #ifdef TARGET_IS_armpe
2005 pe_dll_id_target ("pei-arm-little");
2007 #ifdef TARGET_IS_arm_epoc_pe
2008 pe_dll_id_target ("epoc-pei-arm-little");
2010 #ifdef TARGET_IS_arm_wince_pe
2011 pe_dll_id_target ("pei-arm-wince-little");
2013 if (pe_bfd_is_dll (entry->the_bfd))
2014 return pe_implied_import_dll (entry->filename);
2020 gld_${EMULATION_NAME}_finish (void)
2022 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
2023 struct bfd_link_hash_entry * h;
2025 if (thumb_entry_symbol != NULL)
2027 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
2028 FALSE, FALSE, TRUE);
2030 if (h != (struct bfd_link_hash_entry *) NULL
2031 && (h->type == bfd_link_hash_defined
2032 || h->type == bfd_link_hash_defweak)
2033 && h->u.def.section->output_section != NULL)
2035 static char buffer[32];
2038 /* Special procesing is required for a Thumb entry symbol. The
2039 bottom bit of its address must be set. */
2040 val = (h->u.def.value
2041 + bfd_get_section_vma (link_info.output_bfd,
2042 h->u.def.section->output_section)
2043 + h->u.def.section->output_offset);
2047 /* Now convert this value into a string and store it in entry_symbol
2048 where the lang_finish() function will pick it up. */
2052 sprintf_vma (buffer + 2, val);
2054 if (entry_symbol.name != NULL && entry_from_cmdline)
2055 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
2056 thumb_entry_symbol, entry_symbol.name);
2057 entry_symbol.name = buffer;
2060 einfo (_("%P: warning: cannot find thumb start symbol %s\n"), thumb_entry_symbol);
2062 #endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) */
2067 if (bfd_link_pic (&link_info)
2068 #if !defined(TARGET_IS_shpe)
2069 || (!bfd_link_relocatable (&link_info)
2070 && pe_def_file->num_exports != 0)
2074 pe_dll_fill_sections (link_info.output_bfd, &link_info);
2075 if (pe_implib_filename)
2076 pe_dll_generate_implib (pe_def_file, pe_implib_filename, &link_info);
2078 #if defined(TARGET_IS_shpe)
2079 /* ARM doesn't need relocs. */
2082 pe_exe_fill_sections (link_info.output_bfd, &link_info);
2086 if (pe_out_def_filename)
2087 pe_dll_generate_def_file (pe_out_def_filename);
2088 #endif /* DLL_SUPPORT */
2090 /* I don't know where .idata gets set as code, but it shouldn't be. */
2092 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
2096 asec->flags &= ~SEC_CODE;
2097 asec->flags |= SEC_DATA;
2103 /* Place an orphan section.
2105 We use this to put sections in a reasonable place in the file, and
2106 to ensure that they are aligned as required.
2108 We handle grouped sections here as well. A section named .foo\$nn
2109 goes into the output section .foo. All grouped sections are sorted
2112 Grouped sections for the default sections are handled by the
2113 default linker script using wildcards, and are sorted by
2116 static lang_output_section_statement_type *
2117 gld_${EMULATION_NAME}_place_orphan (asection *s,
2118 const char *secname,
2121 const char *orig_secname = secname;
2122 char *dollar = NULL;
2123 lang_output_section_statement_type *os;
2124 lang_statement_list_type add_child;
2125 lang_output_section_statement_type *match_by_name = NULL;
2126 lang_statement_union_type **pl;
2128 /* Look through the script to see where to place this section. */
2129 if (!bfd_link_relocatable (&link_info)
2130 && (dollar = strchr (secname, '\$')) != NULL)
2132 size_t len = dollar - secname;
2133 char *newname = xmalloc (len + 1);
2134 memcpy (newname, secname, len);
2135 newname[len] = '\0';
2139 lang_list_init (&add_child);
2142 if (constraint == 0)
2143 for (os = lang_output_section_find (secname);
2145 os = next_matching_output_section_statement (os, 0))
2147 /* If we don't match an existing output section, tell
2148 lang_insert_orphan to create a new output section. */
2149 constraint = SPECIAL;
2151 if (os->bfd_section != NULL
2152 && (os->bfd_section->flags == 0
2153 || ((s->flags ^ os->bfd_section->flags)
2154 & (SEC_LOAD | SEC_ALLOC)) == 0))
2156 /* We already have an output section statement with this
2157 name, and its bfd section has compatible flags.
2158 If the section already exists but does not have any flags set,
2159 then it has been created by the linker, probably as a result of
2160 a --section-start command line switch. */
2161 lang_add_section (&add_child, s, NULL, os);
2165 /* Save unused output sections in case we can match them
2166 against orphans later. */
2167 if (os->bfd_section == NULL)
2171 /* If we didn't match an active output section, see if we matched an
2172 unused one and use that. */
2173 if (os == NULL && match_by_name)
2175 lang_add_section (&match_by_name->children, s, NULL, match_by_name);
2176 return match_by_name;
2181 static struct orphan_save hold[] =
2184 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
2187 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
2190 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
2193 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
2199 enum orphan_save_index
2207 static int orphan_init_done = 0;
2208 struct orphan_save *place;
2209 lang_output_section_statement_type *after;
2210 etree_type *address;
2214 if (!orphan_init_done)
2216 struct orphan_save *ho;
2217 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
2218 if (ho->name != NULL)
2220 ho->os = lang_output_section_find (ho->name);
2221 if (ho->os != NULL && ho->os->flags == 0)
2222 ho->os->flags = ho->flags;
2224 orphan_init_done = 1;
2228 if (!bfd_link_relocatable (&link_info))
2231 while ((nexts = bfd_get_next_section_by_name (nexts->owner,
2233 if (nexts->output_section == NULL
2234 && (nexts->flags & SEC_EXCLUDE) == 0
2235 && ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0
2236 && (nexts->owner->flags & DYNAMIC) == 0
2237 && nexts->owner->usrdata != NULL
2238 && !(((lang_input_statement_type *) nexts->owner->usrdata)
2240 flags = (((flags ^ SEC_READONLY)
2241 | (nexts->flags ^ SEC_READONLY))
2245 /* Try to put the new output section in a reasonable place based
2246 on the section name and section flags. */
2249 if ((flags & SEC_ALLOC) == 0)
2251 else if ((flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
2252 place = &hold[orphan_bss];
2253 else if ((flags & SEC_READONLY) == 0)
2254 place = &hold[orphan_data];
2255 else if ((flags & SEC_CODE) == 0)
2257 place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata]
2258 : &hold[orphan_rodata]);
2261 place = &hold[orphan_text];
2266 if (place->os == NULL)
2267 place->os = lang_output_section_find (place->name);
2270 after = lang_output_section_find_by_flags (s, flags, &place->os,
2273 /* *ABS* is always the first output section statement. */
2274 after = (&lang_output_section_statement.head
2275 ->output_section_statement);
2278 /* All sections in an executable must be aligned to a page boundary.
2279 In a relocatable link, just preserve the incoming alignment; the
2280 address is discarded by lang_insert_orphan in that case, anyway. */
2281 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
2282 os = lang_insert_orphan (s, secname, constraint, after, place, address,
2284 if (bfd_link_relocatable (&link_info))
2286 os->section_alignment = s->alignment_power;
2287 os->bfd_section->alignment_power = s->alignment_power;
2291 /* If the section name has a '\$', sort it with the other '\$'
2293 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next)
2295 lang_input_section_type *ls;
2298 if ((*pl)->header.type != lang_input_section_enum)
2301 ls = &(*pl)->input_section;
2303 lname = bfd_get_section_name (ls->section->owner, ls->section);
2304 if (strchr (lname, '\$') != NULL
2305 && (dollar == NULL || strcmp (orig_secname, lname) < 0))
2309 if (add_child.head != NULL)
2311 *add_child.tail = *pl;
2312 *pl = add_child.head;
2319 gld_${EMULATION_NAME}_open_dynamic_archive
2320 (const char *arch ATTRIBUTE_UNUSED,
2321 search_dirs_type *search,
2322 lang_input_statement_type *entry)
2326 const char * format;
2327 bfd_boolean use_prefix;
2331 /* Preferred explicit import library for dll's. */
2332 { "lib%s.dll.a", FALSE },
2333 /* Alternate explicit import library for dll's. */
2334 { "%s.dll.a", FALSE },
2335 /* "libfoo.a" could be either an import lib or a static lib.
2336 For backwards compatibility, libfoo.a needs to precede
2337 libfoo.dll and foo.dll in the search. */
2338 { "lib%s.a", FALSE },
2339 /* The 'native' spelling of an import lib name is "foo.lib". */
2340 { "%s.lib", FALSE },
2342 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
2343 { "%s%s.dll", TRUE },
2345 /* Try "libfoo.dll" (default preferred dll name). */
2346 { "lib%s.dll", FALSE },
2347 /* Finally try 'native' dll name "foo.dll". */
2348 { "%s.dll", FALSE },
2349 /* Note: If adding more formats to this table, make sure to check to
2350 see if their length is longer than libname_fmt[0].format, and if
2351 so, update the call to xmalloc() below. */
2354 static unsigned int format_max_len = 0;
2355 const char * filename;
2361 if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
2364 filename = entry->filename;
2366 if (format_max_len == 0)
2367 /* We need to allow space in the memory that we are going to allocate
2368 for the characters in the format string. Since the format array is
2369 static we only need to calculate this information once. In theory
2370 this value could also be computed statically, but this introduces
2371 the possibility for a discrepancy and hence a possible memory
2372 corruption. The lengths we compute here will be too long because
2373 they will include any formating characters (%s) in the strings, but
2374 this will not matter. */
2375 for (i = 0; libname_fmt[i].format; i++)
2376 if (format_max_len < strlen (libname_fmt[i].format))
2377 format_max_len = strlen (libname_fmt[i].format);
2379 full_string = xmalloc (strlen (search->name)
2383 + (pe_dll_search_prefix
2384 ? strlen (pe_dll_search_prefix) : 0)
2386 /* Allow for the terminating NUL and for the path
2387 separator character that is inserted between
2388 search->name and the start of the format string. */
2391 sprintf (full_string, "%s/", search->name);
2392 base_string = full_string + strlen (full_string);
2394 for (i = 0; libname_fmt[i].format; i++)
2397 if (libname_fmt[i].use_prefix)
2399 if (!pe_dll_search_prefix)
2401 sprintf (base_string, libname_fmt[i].format, pe_dll_search_prefix, filename);
2405 sprintf (base_string, libname_fmt[i].format, filename);
2407 if (ldfile_try_open_bfd (full_string, entry))
2411 if (!libname_fmt[i].format)
2417 entry->filename = full_string;
2423 gld_${EMULATION_NAME}_find_potential_libraries
2424 (char *name, lang_input_statement_type *entry)
2426 return ldfile_open_file_search (name, entry, "", ".lib");
2430 gld_${EMULATION_NAME}_get_script (int *isfile)
2432 # Scripts compiled in.
2433 # sed commands to quote an ld script as a C string.
2434 sc="-f stringify.sed"
2440 if (bfd_link_relocatable (&link_info) && config.build_constructors)
2443 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
2444 echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
2445 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
2446 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
2447 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
2448 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
2449 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
2450 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
2451 echo ' ; else if (link_info.pei386_auto_import == 1 && (MERGE_RDATA_V2 || link_info.pei386_runtime_pseudo_reloc != 2)) return' >> e${EMULATION_NAME}.c
2452 sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
2454 echo ' ; else return' >> e${EMULATION_NAME}.c
2455 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
2456 echo '; }' >> e${EMULATION_NAME}.c
2461 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
2463 gld_${EMULATION_NAME}_before_parse,
2466 gld_${EMULATION_NAME}_after_parse,
2467 gld_${EMULATION_NAME}_after_open,
2468 after_allocation_default,
2469 set_output_arch_default,
2470 ldemul_default_target,
2471 gld_${EMULATION_NAME}_before_allocation,
2472 gld_${EMULATION_NAME}_get_script,
2473 "${EMULATION_NAME}",
2475 gld_${EMULATION_NAME}_finish,
2476 NULL, /* Create output section statements. */
2477 gld_${EMULATION_NAME}_open_dynamic_archive,
2478 gld_${EMULATION_NAME}_place_orphan,
2479 gld_${EMULATION_NAME}_set_symbols,
2480 NULL, /* parse_args */
2481 gld${EMULATION_NAME}_add_options,
2482 gld${EMULATION_NAME}_handle_option,
2483 gld_${EMULATION_NAME}_unrecognized_file,
2484 gld_${EMULATION_NAME}_list_options,
2485 gld_${EMULATION_NAME}_recognized_file,
2486 gld_${EMULATION_NAME}_find_potential_libraries,
2487 NULL, /* new_vers_pattern. */
2488 NULL /* extra_map_file_text. */