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 = ${SUBSYSTEM};
130 static flagword real_flags = 0;
131 static int support_old_code = 0;
132 static char * thumb_entry_symbol = NULL;
133 static lang_assignment_statement_type *image_base_statement = 0;
134 static unsigned short pe_dll_characteristics = 0;
135 static bfd_boolean insert_timestamp = TRUE;
136 static const char *emit_build_id;
139 static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */
140 static char *pe_out_def_filename = NULL;
141 static char *pe_implib_filename = NULL;
142 static int pe_enable_auto_image_base = 0;
143 static unsigned long pe_auto_image_base = 0x61500000;
144 static char *pe_dll_search_prefix = NULL;
147 extern const char *output_filename;
149 static int is_underscoring (void)
152 if (pe_leading_underscore != -1)
153 return pe_leading_underscore;
154 if (!bfd_get_target_info ("${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 (link_info.shared || dll)
558 #if defined (TARGET_IS_i386pe)
559 entry = "DllMainCRTStartup@12";
561 entry = "DllMainCRTStartup";
567 for (i = 0; v[i].entry; i++)
568 if (v[i].value == pe_subsystem)
571 /* If no match, use the default. */
572 if (v[i].entry != NULL)
575 entry = default_entry;
578 initial_symbol_char = (is_underscoring () != 0 ? "_" : "");
580 if (*initial_symbol_char != '\0')
584 /* lang_default_entry expects its argument to be permanently
585 allocated, so we don't free this string. */
586 alc_entry = xmalloc (strlen (initial_symbol_char)
589 strcpy (alc_entry, initial_symbol_char);
590 strcat (alc_entry, entry);
594 lang_default_entry (entry);
598 set_pe_subsystem (void)
604 unsigned long temp_subsystem;
621 /* Check for the presence of a version number. */
622 sver = strchr (optarg, ':');
624 len = strlen (optarg);
628 set_pe_name ("__major_subsystem_version__",
629 strtoul (sver + 1, &end, 0));
631 set_pe_name ("__minor_subsystem_version__",
632 strtoul (end + 1, &end, 0));
634 einfo (_("%P: warning: bad version number in -subsystem option\n"));
637 /* Check for numeric subsystem. */
638 temp_subsystem = strtoul (optarg, & end, 0);
639 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
641 /* Search list for a numeric match to use its entry point. */
642 for (i = 0; v[i].name; i++)
643 if (v[i].value == (int) temp_subsystem)
646 /* Use this subsystem. */
647 pe_subsystem = (int) temp_subsystem;
651 /* Search for subsystem by name. */
652 for (i = 0; v[i].name; i++)
653 if (strncmp (optarg, v[i].name, len) == 0
654 && v[i].name[len] == '\0')
657 if (v[i].name == NULL)
659 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
663 pe_subsystem = v[i].value;
666 set_pe_name ("__subsystem__", pe_subsystem);
673 set_pe_value (char *name)
677 set_pe_name (name, strtoul (optarg, &end, 0));
680 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
687 set_pe_stack_heap (char *resname, char *comname)
689 set_pe_value (resname);
694 set_pe_value (comname);
697 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
700 #define DEFAULT_BUILD_ID_STYLE "md5"
703 gld${EMULATION_NAME}_handle_option (int optc)
710 case OPTION_BASE_FILE:
711 link_info.base_file = fopen (optarg, FOPEN_WB);
712 if (link_info.base_file == NULL)
713 einfo (_("%F%P: cannot open base file %s\n"), optarg);
718 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
721 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
723 case OPTION_SUBSYSTEM:
726 case OPTION_MAJOR_OS_VERSION:
727 set_pe_value ("__major_os_version__");
729 case OPTION_MINOR_OS_VERSION:
730 set_pe_value ("__minor_os_version__");
732 case OPTION_MAJOR_SUBSYSTEM_VERSION:
733 set_pe_value ("__major_subsystem_version__");
735 case OPTION_MINOR_SUBSYSTEM_VERSION:
736 set_pe_value ("__minor_subsystem_version__");
738 case OPTION_MAJOR_IMAGE_VERSION:
739 set_pe_value ("__major_image_version__");
741 case OPTION_MINOR_IMAGE_VERSION:
742 set_pe_value ("__minor_image_version__");
744 case OPTION_FILE_ALIGNMENT:
745 set_pe_value ("__file_alignment__");
747 case OPTION_SECTION_ALIGNMENT:
748 set_pe_value ("__section_alignment__");
751 set_pe_name ("__dll__", 1);
753 case OPTION_IMAGE_BASE:
754 set_pe_value ("__image_base__");
756 case OPTION_SUPPORT_OLD_CODE:
757 support_old_code = 1;
759 case OPTION_THUMB_ENTRY:
760 thumb_entry_symbol = optarg;
762 case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
763 pe_use_nul_prefixed_import_tables = TRUE;
765 case OPTION_NO_LEADING_UNDERSCORE:
766 pe_leading_underscore = 0;
768 case OPTION_LEADING_UNDERSCORE:
769 pe_leading_underscore = 1;
771 case OPTION_INSERT_TIMESTAMP:
772 insert_timestamp = TRUE;
774 case OPTION_NO_INSERT_TIMESTAMP:
775 insert_timestamp = FALSE;
779 pe_out_def_filename = xstrdup (optarg);
781 case OPTION_EXPORT_ALL:
782 pe_dll_export_everything = 1;
784 case OPTION_EXCLUDE_SYMBOLS:
785 pe_dll_add_excludes (optarg, EXCLUDESYMS);
787 case OPTION_EXCLUDE_ALL_SYMBOLS:
788 pe_dll_exclude_all_symbols = 1;
790 case OPTION_EXCLUDE_LIBS:
791 pe_dll_add_excludes (optarg, EXCLUDELIBS);
793 case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
794 pe_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
796 case OPTION_KILL_ATS:
799 case OPTION_STDCALL_ALIASES:
800 pe_dll_stdcall_aliases = 1;
802 case OPTION_ENABLE_STDCALL_FIXUP:
803 pe_enable_stdcall_fixup = 1;
805 case OPTION_DISABLE_STDCALL_FIXUP:
806 pe_enable_stdcall_fixup = 0;
808 case OPTION_IMPLIB_FILENAME:
809 pe_implib_filename = xstrdup (optarg);
811 case OPTION_WARN_DUPLICATE_EXPORTS:
812 pe_dll_warn_dup_exports = 1;
814 case OPTION_IMP_COMPAT:
815 pe_dll_compat_implib = 1;
817 case OPTION_ENABLE_AUTO_IMAGE_BASE:
818 pe_enable_auto_image_base = 1;
819 if (optarg && *optarg)
822 pe_auto_image_base = strtoul (optarg, &end, 0);
823 /* XXX should check that we actually parsed something */
826 case OPTION_DISABLE_AUTO_IMAGE_BASE:
827 pe_enable_auto_image_base = 0;
829 case OPTION_DLL_SEARCH_PREFIX:
830 pe_dll_search_prefix = xstrdup (optarg);
832 case OPTION_NO_DEFAULT_EXCLUDES:
833 pe_dll_do_default_excludes = 0;
835 case OPTION_DLL_ENABLE_AUTO_IMPORT:
836 link_info.pei386_auto_import = 1;
838 case OPTION_DLL_DISABLE_AUTO_IMPORT:
839 link_info.pei386_auto_import = 0;
841 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
842 link_info.pei386_runtime_pseudo_reloc =
843 DEFAULT_PSEUDO_RELOC_VERSION;
845 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1:
846 link_info.pei386_runtime_pseudo_reloc = 1;
848 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
849 link_info.pei386_runtime_pseudo_reloc = 2;
851 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
852 link_info.pei386_runtime_pseudo_reloc = 0;
854 case OPTION_ENABLE_EXTRA_PE_DEBUG:
855 pe_dll_extra_pe_debug = 1;
858 case OPTION_LARGE_ADDRESS_AWARE:
859 real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
861 case OPTION_DISABLE_LARGE_ADDRESS_AWARE:
862 real_flags &= ~ IMAGE_FILE_LARGE_ADDRESS_AWARE;
864 case OPTION_ENABLE_LONG_SECTION_NAMES:
865 pe_use_coff_long_section_names = 1;
867 case OPTION_DISABLE_LONG_SECTION_NAMES:
868 pe_use_coff_long_section_names = 0;
870 /* Get DLLCharacteristics bits */
871 case OPTION_DYNAMIC_BASE:
872 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
874 case OPTION_FORCE_INTEGRITY:
875 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY;
877 case OPTION_NX_COMPAT:
878 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
880 case OPTION_NO_ISOLATION:
881 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
884 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH;
887 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND;
889 case OPTION_WDM_DRIVER:
890 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER;
892 case OPTION_TERMINAL_SERVER_AWARE:
893 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
895 case OPTION_BUILD_ID:
896 if (emit_build_id != NULL)
898 free ((char *) emit_build_id);
899 emit_build_id = NULL;
902 optarg = DEFAULT_BUILD_ID_STYLE;
903 if (strcmp (optarg, "none"))
904 emit_build_id = xstrdup (optarg);
908 /* Set DLLCharacteristics bits */
909 set_pe_name ("__dll_characteristics__", pe_dll_characteristics);
917 strhash (const char *str)
919 const unsigned char *s;
926 s = (const unsigned char *) str;
927 while ((c = *s++) != '\0')
929 hash += c + (c << 17);
933 hash += len + (len << 17);
939 /* Use the output file to create a image base for relocatable DLLs. */
942 compute_dll_image_base (const char *ofile)
944 unsigned long hash = strhash (ofile);
945 return pe_auto_image_base + ((hash << 16) & 0x0FFC0000);
949 /* Assign values to the special symbols before the linker script is
953 gld_${EMULATION_NAME}_set_symbols (void)
955 /* Run through and invent symbols for all the
956 names and insert the defaults. */
961 if (!init[IMAGEBASEOFF].inited)
963 if (link_info.relocatable)
964 init[IMAGEBASEOFF].value = 0;
965 else if (init[DLLOFF].value || (link_info.shared && !link_info.pie))
968 init[IMAGEBASEOFF].value = (pe_enable_auto_image_base
969 ? compute_dll_image_base (output_filename)
970 : NT_DLL_IMAGE_BASE);
972 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
976 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
977 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
980 /* Don't do any symbol assignments if this is a relocatable link. */
981 if (link_info.relocatable)
984 /* Glue the assignments into the abs section. */
985 push_stat_ptr (&abs_output_section->children);
987 for (j = 0; init[j].ptr; j++)
989 long val = init[j].value;
990 lang_assignment_statement_type *rv;
992 rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j),
993 exp_intop (val), FALSE));
994 if (init[j].size == sizeof (short))
995 *(short *) init[j].ptr = val;
996 else if (init[j].size == sizeof (int))
997 *(int *) init[j].ptr = val;
998 else if (init[j].size == sizeof (long))
999 *(long *) init[j].ptr = val;
1000 /* This might be a long long or other special type. */
1001 else if (init[j].size == sizeof (bfd_vma))
1002 *(bfd_vma *) init[j].ptr = val;
1004 if (j == IMAGEBASEOFF)
1005 image_base_statement = rv;
1007 /* Restore the pointer. */
1010 if (pe.FileAlignment > pe.SectionAlignment)
1012 einfo (_("%P: warning, file alignment > section alignment.\n"));
1016 /* This is called after the linker script and the command line options
1020 gld_${EMULATION_NAME}_after_parse (void)
1022 /* PR ld/6744: Warn the user if they have used an ELF-only
1023 option hoping it will work on PE. */
1024 if (link_info.export_dynamic)
1025 einfo (_("%P: warning: --export-dynamic is not supported for PE "
1026 "targets, did you mean --export-all-symbols?\n"));
1030 after_parse_default ();
1033 /* pe-dll.c directly accesses pe_data_import_dll,
1034 so it must be defined outside of #ifdef DLL_SUPPORT.
1035 Note - this variable is deliberately not initialised.
1036 This allows it to be treated as a common varaible, and only
1037 exist in one incarnation in a multiple target enabled linker. */
1038 char * pe_data_import_dll;
1041 static struct bfd_link_hash_entry *pe_undef_found_sym;
1044 pe_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
1048 const char *hs = h->root.string;
1050 sl = strlen (string);
1051 if (h->type == bfd_link_hash_defined
1052 && ((*hs == '@' && *string == '_'
1053 && strncmp (hs + 1, string + 1, sl - 1) == 0)
1054 || strncmp (hs, string, sl) == 0)
1055 && h->root.string[sl] == '@')
1057 pe_undef_found_sym = h;
1064 pe_fixup_stdcalls (void)
1066 static int gave_warning_message = 0;
1067 struct bfd_link_hash_entry *undef, *sym;
1069 if (pe_dll_extra_pe_debug)
1070 printf ("%s\n", __FUNCTION__);
1072 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
1073 if (undef->type == bfd_link_hash_undefined)
1075 char* at = strchr (undef->root.string, '@');
1076 int lead_at = (*undef->root.string == '@');
1078 at = strchr (undef->root.string + 1, '@');
1082 /* The symbol is a stdcall symbol, so let's look for a
1083 cdecl symbol with the same name and resolve to that. */
1084 char *cname = xstrdup (undef->root.string);
1088 at = strchr (cname, '@');
1091 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
1093 if (sym && sym->type == bfd_link_hash_defined)
1095 undef->type = bfd_link_hash_defined;
1096 undef->u.def.value = sym->u.def.value;
1097 undef->u.def.section = sym->u.def.section;
1099 if (pe_enable_stdcall_fixup == -1)
1101 einfo (_("Warning: resolving %s by linking to %s\n"),
1102 undef->root.string, cname);
1103 if (! gave_warning_message)
1105 gave_warning_message = 1;
1106 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1107 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1114 /* The symbol is a cdecl symbol, so we look for stdcall
1115 symbols - which means scanning the whole symbol table. */
1116 pe_undef_found_sym = 0;
1117 bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
1118 (char *) undef->root.string);
1119 sym = pe_undef_found_sym;
1122 undef->type = bfd_link_hash_defined;
1123 undef->u.def.value = sym->u.def.value;
1124 undef->u.def.section = sym->u.def.section;
1126 if (pe_enable_stdcall_fixup == -1)
1128 einfo (_("Warning: resolving %s by linking to %s\n"),
1129 undef->root.string, sym->root.string);
1130 if (! gave_warning_message)
1132 gave_warning_message = 1;
1133 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1134 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1143 make_import_fixup (arelent *rel, asection *s)
1145 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
1148 if (pe_dll_extra_pe_debug)
1149 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
1150 (unsigned long) rel->address, (long) rel->addend);
1152 if (! bfd_get_section_contents (s->owner, s, addend, rel->address, sizeof (addend)))
1153 einfo (_("%C: Cannot get section contents - auto-import exception\n"),
1154 s->owner, s, rel->address);
1156 pe_create_import_fixup (rel, s, bfd_get_32 (s->owner, addend));
1162 pe_find_data_imports (void)
1164 struct bfd_link_hash_entry *undef, *sym;
1166 if (link_info.pei386_auto_import == 0)
1169 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
1171 if (undef->type == bfd_link_hash_undefined)
1173 /* C++ symbols are *long*. */
1176 if (pe_dll_extra_pe_debug)
1177 printf ("%s:%s\n", __FUNCTION__, undef->root.string);
1179 sprintf (buf, "__imp_%s", undef->root.string);
1181 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
1183 if (sym && sym->type == bfd_link_hash_defined)
1185 bfd *b = sym->u.def.section->owner;
1189 if (link_info.pei386_auto_import == -1)
1191 static bfd_boolean warned = FALSE;
1193 info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"),
1194 undef->root.string, buf);
1196 /* PR linker/4844. */
1200 einfo (_("%P: warning: auto-importing has been activated without --enable-auto-import specified on the command line.\n\
1201 This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.\n"));
1205 if (!bfd_generic_link_read_symbols (b))
1207 einfo (_("%B%F: could not read symbols: %E\n"), b);
1211 symbols = bfd_get_outsymbols (b);
1212 nsyms = bfd_get_symcount (b);
1214 for (i = 0; i < nsyms; i++)
1216 if (! CONST_STRNEQ (symbols[i]->name,
1220 if (pe_dll_extra_pe_debug)
1221 printf ("->%s\n", symbols[i]->name);
1223 pe_data_import_dll = (char *) (symbols[i]->name
1224 + U_SIZE ("_head_") - 1);
1228 pe_walk_relocs_of_symbol (&link_info, undef->root.string,
1231 /* Let's differentiate it somehow from defined. */
1232 undef->type = bfd_link_hash_defweak;
1233 /* We replace original name with __imp_ prefixed, this
1234 1) may trash memory 2) leads to duplicate symbol generation.
1235 Still, IMHO it's better than having name poluted. */
1236 undef->root.string = sym->root.string;
1237 undef->u.def.value = sym->u.def.value;
1238 undef->u.def.section = sym->u.def.section;
1245 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
1247 printf ("+%s\n", h->string);
1251 #endif /* DLL_SUPPORT */
1254 debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
1256 int *found = (int *) obj;
1257 if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
1262 pecoff_checksum_contents (bfd *abfd,
1263 void (*process) (const void *, size_t, void *),
1266 file_ptr filepos = (file_ptr) 0;
1273 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
1276 status = bfd_bread (&b, (bfd_size_type) 1, abfd);
1282 (*process) (&b, 1, arg);
1290 write_build_id (bfd *abfd)
1292 struct pe_tdata *t = pe_data (abfd);
1294 struct bfd_link_order *link_order = NULL;
1295 unsigned char *contents;
1297 bfd_size_type build_id_size;
1298 unsigned char *build_id;
1300 /* Find the section the .buildid output section has been merged info. */
1301 for (asec = abfd->sections; asec != NULL; asec = asec->next)
1303 struct bfd_link_order *l = NULL;
1304 for (l = asec->map_head.link_order; l != NULL; l = l->next)
1306 if ((l->type == bfd_indirect_link_order))
1308 if (l->u.indirect.section == t->build_id.sec)
1322 einfo (_("%P: warning: .buildid section discarded,"
1323 " --build-id ignored.\n"));
1327 if (t->build_id.sec->contents == NULL)
1328 t->build_id.sec->contents = (unsigned char *) xmalloc (t->build_id.sec->size);
1329 contents = t->build_id.sec->contents;
1330 size = t->build_id.sec->size;
1332 build_id_size = compute_build_id_size (t->build_id.style);
1333 build_id = xmalloc (build_id_size);
1334 generate_build_id (abfd, t->build_id.style, pecoff_checksum_contents, build_id, build_id_size);
1336 bfd_vma ib = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase;
1338 /* Construct a debug directory entry which points to an immediately following CodeView record. */
1339 struct internal_IMAGE_DEBUG_DIRECTORY idd;
1340 idd.Characteristics = 0;
1341 idd.TimeDateStamp = 0;
1342 idd.MajorVersion = 0;
1343 idd.MinorVersion = 0;
1344 idd.Type = PE_IMAGE_DEBUG_TYPE_CODEVIEW;
1345 idd.SizeOfData = sizeof (CV_INFO_PDB70) + 1;
1346 idd.AddressOfRawData = asec->vma - ib + link_order->offset
1347 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1348 idd.PointerToRawData = asec->filepos + link_order->offset
1349 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1351 struct external_IMAGE_DEBUG_DIRECTORY *ext = (struct external_IMAGE_DEBUG_DIRECTORY *)contents;
1352 _bfd_XXi_swap_debugdir_out (abfd, &idd, ext);
1354 /* Write the debug directory entry. */
1355 if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0)
1358 if ((bfd_bwrite (contents, size, abfd) != size))
1361 /* Construct the CodeView record. */
1362 CODEVIEW_INFO cvinfo;
1363 cvinfo.CVSignature = CVINFO_PDB70_CVSIGNATURE;
1366 /* Zero pad or truncate the generated build_id to fit in the CodeView record. */
1367 memset (&(cvinfo.Signature), 0, CV_INFO_SIGNATURE_LENGTH);
1368 memcpy (&(cvinfo.Signature), build_id, (build_id_size > CV_INFO_SIGNATURE_LENGTH)
1369 ? CV_INFO_SIGNATURE_LENGTH : build_id_size);
1373 /* Write the codeview record. */
1374 if (_bfd_XXi_write_codeview_record (abfd, idd.PointerToRawData, &cvinfo) == 0)
1377 /* Record the location of the debug directory in the data directory. */
1378 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress
1379 = asec->vma - ib + link_order->offset;
1380 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size
1381 = sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1386 /* Make .buildid section, and set up coff_tdata->build_id. */
1388 setup_build_id (bfd *ibfd)
1393 if (!validate_build_id_style (emit_build_id))
1395 einfo ("%P: warning: unrecognized --build-id style ignored.\n");
1399 flags = (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
1400 | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
1401 s = bfd_make_section_anyway_with_flags (ibfd, ".buildid", flags);
1404 struct pe_tdata *t = pe_data (link_info.output_bfd);
1405 t->build_id.after_write_object_contents = &write_build_id;
1406 t->build_id.style = emit_build_id;
1407 t->build_id.sec = s;
1409 /* Section is a fixed size:
1410 One IMAGE_DEBUG_DIRECTORY entry, of type IMAGE_DEBUG_TYPE_CODEVIEW,
1411 pointing at a CV_INFO_PDB70 record containing the build-id, with a
1412 null byte for PdbFileName. */
1413 s->size = sizeof (struct external_IMAGE_DEBUG_DIRECTORY)
1414 + sizeof (CV_INFO_PDB70) + 1;
1419 einfo ("%P: warning: Cannot create .buildid section,"
1420 " --build-id ignored.\n");
1425 gld_${EMULATION_NAME}_after_open (void)
1427 after_open_default ();
1430 if (pe_dll_extra_pe_debug)
1433 struct bfd_link_hash_entry *sym;
1435 printf ("%s()\n", __FUNCTION__);
1437 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1438 printf ("-%s\n", sym->root.string);
1439 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1441 for (a = link_info.input_bfds; a; a = a->link.next)
1442 printf ("*%s\n",a->filename);
1446 if (emit_build_id != NULL)
1450 /* Find a COFF input. */
1451 for (abfd = link_info.input_bfds;
1452 abfd != (bfd *) NULL; abfd = abfd->link.next)
1453 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
1456 /* If there are no COFF input files do not try to
1457 add a build-id section. */
1459 || !setup_build_id (abfd))
1461 free ((char *) emit_build_id);
1462 emit_build_id = NULL;
1466 /* Pass the wacky PE command line options into the output bfd.
1467 FIXME: This should be done via a function, rather than by
1468 including an internal BFD header. */
1470 if (coff_data (link_info.output_bfd) == NULL
1471 || coff_data (link_info.output_bfd)->pe == 0)
1472 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"),
1473 link_info.output_bfd);
1475 pe_data (link_info.output_bfd)->pe_opthdr = pe;
1476 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1477 pe_data (link_info.output_bfd)->real_flags |= real_flags;
1478 pe_data (link_info.output_bfd)->insert_timestamp = insert_timestamp;
1480 /* At this point we must decide whether to use long section names
1481 in the output or not. If the user hasn't explicitly specified
1482 on the command line, we leave it to the default for the format
1483 (object files yes, image files no), except if there is debug
1484 information present; GDB relies on the long section names to
1485 find it, so enable it in that case. */
1486 if (pe_use_coff_long_section_names < 0 && link_info.strip == strip_none)
1488 if (link_info.relocatable)
1489 pe_use_coff_long_section_names = 1;
1492 /* Iterate over all sections of all input BFDs, checking
1493 for any that begin 'debug_' and are long names. */
1494 LANG_FOR_EACH_INPUT_STATEMENT (is)
1496 int found_debug = 0;
1498 bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
1501 pe_use_coff_long_section_names = 1;
1508 pe_output_file_set_long_section_names (link_info.output_bfd);
1511 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
1512 pe_fixup_stdcalls ();
1514 pe_process_import_defs (link_info.output_bfd, &link_info);
1516 pe_find_data_imports ();
1518 /* As possibly new symbols are added by imports, we rerun
1519 stdcall/fastcall fixup here. */
1520 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
1521 pe_fixup_stdcalls ();
1523 #if defined (TARGET_IS_i386pe) \
1524 || defined (TARGET_IS_armpe) \
1525 || defined (TARGET_IS_arm_epoc_pe) \
1526 || defined (TARGET_IS_arm_wince_pe)
1527 if (!link_info.relocatable)
1528 pe_dll_build_sections (link_info.output_bfd, &link_info);
1530 if (link_info.shared)
1531 pe_dll_build_sections (link_info.output_bfd, &link_info);
1533 pe_exe_build_sections (link_info.output_bfd, &link_info);
1535 #endif /* DLL_SUPPORT */
1537 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1538 if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
1540 /* The arm backend needs special fields in the output hash structure.
1541 These will only be created if the output format is an arm format,
1542 hence we do not support linking and changing output formats at the
1543 same time. Use a link followed by objcopy to change output formats. */
1544 einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
1548 /* Find a BFD that can hold the interworking stubs. */
1549 LANG_FOR_EACH_INPUT_STATEMENT (is)
1551 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
1558 /* This next chunk of code tries to detect the case where you have
1559 two import libraries for the same DLL (specifically,
1560 symbolically linking libm.a and libc.a in cygwin to
1561 libcygwin.a). In those cases, it's possible for function
1562 thunks from the second implib to be used but without the
1563 head/tail objects, causing an improper import table. We detect
1564 those cases and rename the "other" import libraries to match
1565 the one the head/tail come from, so that the linker will sort
1566 things nicely and produce a valid import table. */
1568 LANG_FOR_EACH_INPUT_STATEMENT (is)
1570 if (is->the_bfd->my_archive)
1572 int idata2 = 0, reloc_count=0, is_imp = 0;
1575 /* See if this is an import library thunk. */
1576 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1578 if (strcmp (sec->name, ".idata\$2") == 0)
1580 if (CONST_STRNEQ (sec->name, ".idata\$"))
1582 reloc_count += sec->reloc_count;
1585 if (is_imp && !idata2 && reloc_count)
1587 /* It is, look for the reference to head and see if it's
1588 from our own library. */
1589 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1597 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1601 if (!bfd_generic_link_read_symbols (is->the_bfd))
1603 einfo (_("%B%F: could not read symbols: %E\n"),
1607 symbols = bfd_get_outsymbols (is->the_bfd);
1609 relocs = xmalloc ((size_t) relsize);
1610 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1615 einfo ("%X%P: unable to process relocs: %E\n");
1619 for (i = 0; i < nrelocs; i++)
1621 struct bfd_symbol *s;
1622 struct bfd_link_hash_entry * blhe;
1623 char *other_bfd_filename;
1626 s = (relocs[i]->sym_ptr_ptr)[0];
1628 if (s->flags & BSF_LOCAL)
1631 /* Thunk section with reloc to another bfd. */
1632 blhe = bfd_link_hash_lookup (link_info.hash,
1634 FALSE, FALSE, TRUE);
1637 || blhe->type != bfd_link_hash_defined)
1641 = blhe->u.def.section->owner->my_archive
1642 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1643 : bfd_get_filename (blhe->u.def.section->owner);
1645 if (filename_cmp (bfd_get_filename
1646 (is->the_bfd->my_archive),
1647 other_bfd_filename) == 0)
1650 /* Rename this implib to match the other one. */
1651 n = xmalloc (strlen (other_bfd_filename) + 1);
1652 strcpy (n, other_bfd_filename);
1653 is->the_bfd->my_archive->filename = n;
1657 /* Note - we do not free the symbols,
1658 they are now cached in the BFD. */
1668 lang_input_statement_type *is2;
1669 lang_input_statement_type *is3;
1671 /* Careful - this is a shell script. Watch those dollar signs! */
1672 /* Microsoft import libraries have every member named the same,
1673 and not in the right order for us to link them correctly. We
1674 must detect these and rename the members so that they'll link
1675 correctly. There are three types of objects: the head, the
1676 thunks, and the sentinel(s). The head is easy; it's the one
1677 with idata2. We assume that the sentinels won't have relocs,
1678 and the thunks will. It's easier than checking the symbol
1679 table for external references. */
1680 LANG_FOR_EACH_INPUT_STATEMENT (is)
1682 if (is->the_bfd->my_archive)
1685 bfd *arch = is->the_bfd->my_archive;
1687 if (cur_arch != arch)
1693 is3 && is3->the_bfd->my_archive == arch;
1694 is3 = (lang_input_statement_type *) is3->next)
1696 /* A MS dynamic import library can also contain static
1697 members, so look for the first element with a .dll
1698 extension, and use that for the remainder of the
1700 pnt = strrchr (is3->the_bfd->filename, '.');
1701 if (pnt != NULL && filename_cmp (pnt, ".dll") == 0)
1709 /* OK, found one. Now look to see if the remaining
1710 (dynamic import) members use the same name. */
1712 is2 && is2->the_bfd->my_archive == arch;
1713 is2 = (lang_input_statement_type *) is2->next)
1715 /* Skip static members, ie anything with a .obj
1717 pnt = strrchr (is2->the_bfd->filename, '.');
1718 if (pnt != NULL && filename_cmp (pnt, ".obj") == 0)
1721 if (filename_cmp (is3->the_bfd->filename,
1722 is2->the_bfd->filename))
1731 /* This fragment might have come from an .obj file in a Microsoft
1732 import, and not an actual import record. If this is the case,
1733 then leave the filename alone. */
1734 pnt = strrchr (is->the_bfd->filename, '.');
1736 if (is_ms_arch && (filename_cmp (pnt, ".dll") == 0))
1738 int idata2 = 0, reloc_count=0;
1740 char *new_name, seq;
1742 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1744 if (strcmp (sec->name, ".idata\$2") == 0)
1746 reloc_count += sec->reloc_count;
1749 if (idata2) /* .idata2 is the TOC */
1751 else if (reloc_count > 0) /* thunks */
1756 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1757 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1758 is->the_bfd->filename = new_name;
1760 new_name = xmalloc (strlen (is->filename) + 3);
1761 sprintf (new_name, "%s.%c", is->filename, seq);
1762 is->filename = new_name;
1769 /* The following chunk of code tries to identify jump stubs in
1770 import libraries which are dead code and eliminates them
1771 from the final link. For each exported symbol <sym>, there
1772 is a object file in the import library with a .text section
1773 and several .idata\$* sections. The .text section contains the
1774 symbol definition for <sym> which is a jump stub of the form
1775 jmp *__imp_<sym>. The .idata\$5 contains the symbol definition
1776 for __imp_<sym> which is the address of the slot for <sym> in
1777 the import address table. When a symbol is imported explicitly
1778 using __declspec(dllimport) declaration, the compiler generates
1779 a reference to __imp_<sym> which directly resolves to the
1780 symbol in .idata\$5, in which case the jump stub code is not
1781 needed. The following code tries to identify jump stub sections
1782 in import libraries which are not referred to by anyone and
1783 marks them for exclusion from the final link. */
1784 LANG_FOR_EACH_INPUT_STATEMENT (is)
1786 if (is->the_bfd->my_archive)
1789 asection *sec, *stub_sec = NULL;
1791 /* See if this is an import library thunk. */
1792 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1794 if (strncmp (sec->name, ".idata\$", 7) == 0)
1796 /* The section containing the jmp stub has code
1798 if ((sec->flags & SEC_CODE) && sec->reloc_count)
1802 if (is_imp && stub_sec)
1805 long nsyms, src_count;
1806 struct bfd_link_hash_entry * blhe;
1808 if (!bfd_generic_link_read_symbols (is->the_bfd))
1810 einfo (_("%B%F: could not read symbols: %E\n"),
1814 symbols = bfd_get_outsymbols (is->the_bfd);
1815 nsyms = bfd_get_symcount (is->the_bfd);
1817 for (src_count = 0; src_count < nsyms; src_count++)
1819 if (symbols[src_count]->section->id == stub_sec->id)
1821 /* This symbol belongs to the section containing
1823 blhe = bfd_link_hash_lookup (link_info.hash,
1824 symbols[src_count]->name,
1825 FALSE, FALSE, TRUE);
1826 /* If the symbol in the stub section has no other
1827 undefined references, exclude the stub section
1828 from the final link. */
1830 && blhe->type == bfd_link_hash_defined
1831 && blhe->u.undef.next == NULL
1832 && blhe != link_info.hash->undefs_tail)
1833 stub_sec->flags |= SEC_EXCLUDE;
1843 gld_${EMULATION_NAME}_before_allocation (void)
1845 #ifdef TARGET_IS_ppcpe
1846 /* Here we rummage through the found bfds to collect toc information. */
1848 LANG_FOR_EACH_INPUT_STATEMENT (is)
1850 if (!ppc_process_before_allocation (is->the_bfd, &link_info))
1852 /* xgettext:c-format */
1853 einfo (_("Errors encountered processing file %s\n"), is->filename);
1858 /* We have seen it all. Allocate it, and carry on. */
1859 ppc_allocate_toc_section (&link_info);
1860 #endif /* TARGET_IS_ppcpe */
1862 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1863 /* FIXME: we should be able to set the size of the interworking stub
1866 Here we rummage through the found bfds to collect glue
1867 information. FIXME: should this be based on a command line
1868 option? krk@cygnus.com. */
1870 LANG_FOR_EACH_INPUT_STATEMENT (is)
1872 if (! bfd_arm_process_before_allocation
1873 (is->the_bfd, & link_info, support_old_code))
1875 /* xgettext:c-format */
1876 einfo (_("Errors encountered processing file %s for interworking\n"),
1882 /* We have seen it all. Allocate it, and carry on. */
1883 bfd_arm_allocate_interworking_sections (& link_info);
1884 #endif /* TARGET_IS_armpe || TARGET_IS_arm_epoc_pe || TARGET_IS_arm_wince_pe */
1886 before_allocation_default ();
1890 /* This is called when an input file isn't recognized as a BFD. We
1891 check here for .DEF files and pull them in automatically. */
1894 saw_option (char *option)
1898 for (i = 0; init[i].ptr; i++)
1899 if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0)
1900 return init[i].inited;
1903 #endif /* DLL_SUPPORT */
1906 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1909 const char *ext = entry->filename + strlen (entry->filename) - 4;
1911 if (filename_cmp (ext, ".def") == 0 || filename_cmp (ext, ".DEF") == 0)
1913 pe_def_file = def_file_parse (entry->filename, pe_def_file);
1917 int i, buflen=0, len;
1920 for (i = 0; i < pe_def_file->num_exports; i++)
1922 len = strlen (pe_def_file->exports[i].internal_name);
1923 if (buflen < len + 2)
1927 buf = xmalloc (buflen);
1929 for (i = 0; i < pe_def_file->num_exports; i++)
1931 struct bfd_link_hash_entry *h;
1933 sprintf (buf, "%s%s", U (""),
1934 pe_def_file->exports[i].internal_name);
1936 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1937 if (h == (struct bfd_link_hash_entry *) NULL)
1938 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1939 if (h->type == bfd_link_hash_new)
1941 h->type = bfd_link_hash_undefined;
1942 h->u.undef.abfd = NULL;
1943 bfd_link_add_undef (link_info.hash, h);
1948 /* def_file_print (stdout, pe_def_file); */
1949 if (pe_def_file->is_dll == 1)
1950 link_info.shared = 1;
1952 if (pe_def_file->base_address != (bfd_vma)(-1))
1955 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1956 = init[IMAGEBASEOFF].value
1957 = pe_def_file->base_address;
1958 init[IMAGEBASEOFF].inited = 1;
1959 if (image_base_statement)
1960 image_base_statement->exp
1961 = exp_assign ("__image_base__", exp_intop (pe.ImageBase),
1965 if (pe_def_file->stack_reserve != -1
1966 && ! saw_option ("__size_of_stack_reserve__"))
1968 pe.SizeOfStackReserve = pe_def_file->stack_reserve;
1969 if (pe_def_file->stack_commit != -1)
1970 pe.SizeOfStackCommit = pe_def_file->stack_commit;
1972 if (pe_def_file->heap_reserve != -1
1973 && ! saw_option ("__size_of_heap_reserve__"))
1975 pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
1976 if (pe_def_file->heap_commit != -1)
1977 pe.SizeOfHeapCommit = pe_def_file->heap_commit;
1987 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1990 #ifdef TARGET_IS_i386pe
1991 pe_dll_id_target ("pei-i386");
1993 #ifdef TARGET_IS_shpe
1994 pe_dll_id_target ("pei-shl");
1996 #ifdef TARGET_IS_armpe
1997 pe_dll_id_target ("pei-arm-little");
1999 #ifdef TARGET_IS_arm_epoc_pe
2000 pe_dll_id_target ("epoc-pei-arm-little");
2002 #ifdef TARGET_IS_arm_wince_pe
2003 pe_dll_id_target ("pei-arm-wince-little");
2005 if (pe_bfd_is_dll (entry->the_bfd))
2006 return pe_implied_import_dll (entry->filename);
2012 gld_${EMULATION_NAME}_finish (void)
2014 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
2015 struct bfd_link_hash_entry * h;
2017 if (thumb_entry_symbol != NULL)
2019 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
2020 FALSE, FALSE, TRUE);
2022 if (h != (struct bfd_link_hash_entry *) NULL
2023 && (h->type == bfd_link_hash_defined
2024 || h->type == bfd_link_hash_defweak)
2025 && h->u.def.section->output_section != NULL)
2027 static char buffer[32];
2030 /* Special procesing is required for a Thumb entry symbol. The
2031 bottom bit of its address must be set. */
2032 val = (h->u.def.value
2033 + bfd_get_section_vma (link_info.output_bfd,
2034 h->u.def.section->output_section)
2035 + h->u.def.section->output_offset);
2039 /* Now convert this value into a string and store it in entry_symbol
2040 where the lang_finish() function will pick it up. */
2044 sprintf_vma (buffer + 2, val);
2046 if (entry_symbol.name != NULL && entry_from_cmdline)
2047 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
2048 thumb_entry_symbol, entry_symbol.name);
2049 entry_symbol.name = buffer;
2052 einfo (_("%P: warning: cannot find thumb start symbol %s\n"), thumb_entry_symbol);
2054 #endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) */
2059 if (link_info.shared
2060 #if !defined(TARGET_IS_shpe)
2061 || (!link_info.relocatable && pe_def_file->num_exports != 0)
2065 pe_dll_fill_sections (link_info.output_bfd, &link_info);
2066 if (pe_implib_filename)
2067 pe_dll_generate_implib (pe_def_file, pe_implib_filename, &link_info);
2069 #if defined(TARGET_IS_shpe)
2070 /* ARM doesn't need relocs. */
2073 pe_exe_fill_sections (link_info.output_bfd, &link_info);
2077 if (pe_out_def_filename)
2078 pe_dll_generate_def_file (pe_out_def_filename);
2079 #endif /* DLL_SUPPORT */
2081 /* I don't know where .idata gets set as code, but it shouldn't be. */
2083 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
2087 asec->flags &= ~SEC_CODE;
2088 asec->flags |= SEC_DATA;
2094 /* Place an orphan section.
2096 We use this to put sections in a reasonable place in the file, and
2097 to ensure that they are aligned as required.
2099 We handle grouped sections here as well. A section named .foo\$nn
2100 goes into the output section .foo. All grouped sections are sorted
2103 Grouped sections for the default sections are handled by the
2104 default linker script using wildcards, and are sorted by
2107 static lang_output_section_statement_type *
2108 gld_${EMULATION_NAME}_place_orphan (asection *s,
2109 const char *secname,
2112 const char *orig_secname = secname;
2113 char *dollar = NULL;
2114 lang_output_section_statement_type *os;
2115 lang_statement_list_type add_child;
2116 lang_output_section_statement_type *match_by_name = NULL;
2117 lang_statement_union_type **pl;
2119 /* Look through the script to see where to place this section. */
2120 if (!link_info.relocatable
2121 && (dollar = strchr (secname, '\$')) != NULL)
2123 size_t len = dollar - secname;
2124 char *newname = xmalloc (len + 1);
2125 memcpy (newname, secname, len);
2126 newname[len] = '\0';
2130 lang_list_init (&add_child);
2133 if (constraint == 0)
2134 for (os = lang_output_section_find (secname);
2136 os = next_matching_output_section_statement (os, 0))
2138 /* If we don't match an existing output section, tell
2139 lang_insert_orphan to create a new output section. */
2140 constraint = SPECIAL;
2142 if (os->bfd_section != NULL
2143 && (os->bfd_section->flags == 0
2144 || ((s->flags ^ os->bfd_section->flags)
2145 & (SEC_LOAD | SEC_ALLOC)) == 0))
2147 /* We already have an output section statement with this
2148 name, and its bfd section has compatible flags.
2149 If the section already exists but does not have any flags set,
2150 then it has been created by the linker, probably as a result of
2151 a --section-start command line switch. */
2152 lang_add_section (&add_child, s, NULL, os);
2156 /* Save unused output sections in case we can match them
2157 against orphans later. */
2158 if (os->bfd_section == NULL)
2162 /* If we didn't match an active output section, see if we matched an
2163 unused one and use that. */
2164 if (os == NULL && match_by_name)
2166 lang_add_section (&match_by_name->children, s, NULL, match_by_name);
2167 return match_by_name;
2172 static struct orphan_save hold[] =
2175 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
2178 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
2181 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
2184 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
2190 enum orphan_save_index
2198 static int orphan_init_done = 0;
2199 struct orphan_save *place;
2200 lang_output_section_statement_type *after;
2201 etree_type *address;
2203 if (!orphan_init_done)
2205 struct orphan_save *ho;
2206 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
2207 if (ho->name != NULL)
2209 ho->os = lang_output_section_find (ho->name);
2210 if (ho->os != NULL && ho->os->flags == 0)
2211 ho->os->flags = ho->flags;
2213 orphan_init_done = 1;
2216 /* Try to put the new output section in a reasonable place based
2217 on the section name and section flags. */
2220 if ((s->flags & SEC_ALLOC) == 0)
2222 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
2223 place = &hold[orphan_bss];
2224 else if ((s->flags & SEC_READONLY) == 0)
2225 place = &hold[orphan_data];
2226 else if ((s->flags & SEC_CODE) == 0)
2228 place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata]
2229 : &hold[orphan_rodata]);
2232 place = &hold[orphan_text];
2237 if (place->os == NULL)
2238 place->os = lang_output_section_find (place->name);
2241 after = lang_output_section_find_by_flags (s, &place->os, NULL);
2243 /* *ABS* is always the first output section statement. */
2244 after = (&lang_output_section_statement.head
2245 ->output_section_statement);
2248 /* All sections in an executable must be aligned to a page boundary.
2249 In a relocatable link, just preserve the incoming alignment; the
2250 address is discarded by lang_insert_orphan in that case, anyway. */
2251 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
2252 os = lang_insert_orphan (s, secname, constraint, after, place, address,
2254 if (link_info.relocatable)
2256 os->section_alignment = s->alignment_power;
2257 os->bfd_section->alignment_power = s->alignment_power;
2261 /* If the section name has a '\$', sort it with the other '\$'
2263 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next)
2265 lang_input_section_type *ls;
2268 if ((*pl)->header.type != lang_input_section_enum)
2271 ls = &(*pl)->input_section;
2273 lname = bfd_get_section_name (ls->section->owner, ls->section);
2274 if (strchr (lname, '\$') != NULL
2275 && (dollar == NULL || strcmp (orig_secname, lname) < 0))
2279 if (add_child.head != NULL)
2281 *add_child.tail = *pl;
2282 *pl = add_child.head;
2289 gld_${EMULATION_NAME}_open_dynamic_archive
2290 (const char *arch ATTRIBUTE_UNUSED,
2291 search_dirs_type *search,
2292 lang_input_statement_type *entry)
2296 const char * format;
2297 bfd_boolean use_prefix;
2301 /* Preferred explicit import library for dll's. */
2302 { "lib%s.dll.a", FALSE },
2303 /* Alternate explicit import library for dll's. */
2304 { "%s.dll.a", FALSE },
2305 /* "libfoo.a" could be either an import lib or a static lib.
2306 For backwards compatibility, libfoo.a needs to precede
2307 libfoo.dll and foo.dll in the search. */
2308 { "lib%s.a", FALSE },
2309 /* The 'native' spelling of an import lib name is "foo.lib". */
2310 { "%s.lib", FALSE },
2312 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
2313 { "%s%s.dll", TRUE },
2315 /* Try "libfoo.dll" (default preferred dll name). */
2316 { "lib%s.dll", FALSE },
2317 /* Finally try 'native' dll name "foo.dll". */
2318 { "%s.dll", FALSE },
2319 /* Note: If adding more formats to this table, make sure to check to
2320 see if their length is longer than libname_fmt[0].format, and if
2321 so, update the call to xmalloc() below. */
2324 static unsigned int format_max_len = 0;
2325 const char * filename;
2331 if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
2334 filename = entry->filename;
2336 if (format_max_len == 0)
2337 /* We need to allow space in the memory that we are going to allocate
2338 for the characters in the format string. Since the format array is
2339 static we only need to calculate this information once. In theory
2340 this value could also be computed statically, but this introduces
2341 the possibility for a discrepancy and hence a possible memory
2342 corruption. The lengths we compute here will be too long because
2343 they will include any formating characters (%s) in the strings, but
2344 this will not matter. */
2345 for (i = 0; libname_fmt[i].format; i++)
2346 if (format_max_len < strlen (libname_fmt[i].format))
2347 format_max_len = strlen (libname_fmt[i].format);
2349 full_string = xmalloc (strlen (search->name)
2353 + (pe_dll_search_prefix
2354 ? strlen (pe_dll_search_prefix) : 0)
2356 /* Allow for the terminating NUL and for the path
2357 separator character that is inserted between
2358 search->name and the start of the format string. */
2361 sprintf (full_string, "%s/", search->name);
2362 base_string = full_string + strlen (full_string);
2364 for (i = 0; libname_fmt[i].format; i++)
2367 if (libname_fmt[i].use_prefix)
2369 if (!pe_dll_search_prefix)
2371 sprintf (base_string, libname_fmt[i].format, pe_dll_search_prefix, filename);
2375 sprintf (base_string, libname_fmt[i].format, filename);
2377 if (ldfile_try_open_bfd (full_string, entry))
2381 if (!libname_fmt[i].format)
2387 entry->filename = full_string;
2393 gld_${EMULATION_NAME}_find_potential_libraries
2394 (char *name, lang_input_statement_type *entry)
2396 return ldfile_open_file_search (name, entry, "", ".lib");
2400 gld_${EMULATION_NAME}_get_script (int *isfile)
2402 # Scripts compiled in.
2403 # sed commands to quote an ld script as a C string.
2404 sc="-f stringify.sed"
2410 if (link_info.relocatable && config.build_constructors)
2413 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
2414 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
2415 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
2416 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
2417 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
2418 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
2419 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
2420 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
2421 echo ' ; else if (link_info.pei386_auto_import == 1 && (MERGE_RDATA_V2 || link_info.pei386_runtime_pseudo_reloc != 2)) return' >> e${EMULATION_NAME}.c
2422 sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
2424 echo ' ; else return' >> e${EMULATION_NAME}.c
2425 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
2426 echo '; }' >> e${EMULATION_NAME}.c
2431 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
2433 gld_${EMULATION_NAME}_before_parse,
2436 gld_${EMULATION_NAME}_after_parse,
2437 gld_${EMULATION_NAME}_after_open,
2438 after_allocation_default,
2439 set_output_arch_default,
2440 ldemul_default_target,
2441 gld_${EMULATION_NAME}_before_allocation,
2442 gld_${EMULATION_NAME}_get_script,
2443 "${EMULATION_NAME}",
2445 gld_${EMULATION_NAME}_finish,
2446 NULL, /* Create output section statements. */
2447 gld_${EMULATION_NAME}_open_dynamic_archive,
2448 gld_${EMULATION_NAME}_place_orphan,
2449 gld_${EMULATION_NAME}_set_symbols,
2450 NULL, /* parse_args */
2451 gld${EMULATION_NAME}_add_options,
2452 gld${EMULATION_NAME}_handle_option,
2453 gld_${EMULATION_NAME}_unrecognized_file,
2454 gld_${EMULATION_NAME}_list_options,
2455 gld_${EMULATION_NAME}_recognized_file,
2456 gld_${EMULATION_NAME}_find_potential_libraries,
2457 NULL, /* new_vers_pattern. */
2458 NULL /* extra_map_file_text. */