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";
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 (bfd_link_relocatable (&link_info))
964 init[IMAGEBASEOFF].value = 0;
965 else if (init[DLLOFF].value || bfd_link_dll (&link_info))
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 (bfd_link_relocatable (&link_info))
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*. */
1174 #define BUF_SIZE 4096
1177 if (pe_dll_extra_pe_debug)
1178 printf ("%s:%s\n", __FUNCTION__, undef->root.string);
1180 if (strlen (undef->root.string) > (BUF_SIZE - 6))
1182 /* PR linker/18466. */
1183 einfo (_("%P: internal error: symbol too long: %s\n"),
1184 undef->root.string);
1188 sprintf (buf, "__imp_%s", undef->root.string);
1190 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
1192 if (sym && sym->type == bfd_link_hash_defined)
1194 bfd *b = sym->u.def.section->owner;
1198 if (link_info.pei386_auto_import == -1)
1200 static bfd_boolean warned = FALSE;
1202 info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"),
1203 undef->root.string, buf);
1205 /* PR linker/4844. */
1209 einfo (_("%P: warning: auto-importing has been activated without --enable-auto-import specified on the command line.\n\
1210 This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.\n"));
1214 if (!bfd_generic_link_read_symbols (b))
1216 einfo (_("%B%F: could not read symbols: %E\n"), b);
1220 symbols = bfd_get_outsymbols (b);
1221 nsyms = bfd_get_symcount (b);
1223 for (i = 0; i < nsyms; i++)
1225 if (! CONST_STRNEQ (symbols[i]->name,
1229 if (pe_dll_extra_pe_debug)
1230 printf ("->%s\n", symbols[i]->name);
1232 pe_data_import_dll = (char *) (symbols[i]->name
1233 + U_SIZE ("_head_") - 1);
1237 pe_walk_relocs_of_symbol (&link_info, undef->root.string,
1240 /* Let's differentiate it somehow from defined. */
1241 undef->type = bfd_link_hash_defweak;
1242 /* We replace original name with __imp_ prefixed, this
1243 1) may trash memory 2) leads to duplicate symbol generation.
1244 Still, IMHO it's better than having name poluted. */
1245 undef->root.string = sym->root.string;
1246 undef->u.def.value = sym->u.def.value;
1247 undef->u.def.section = sym->u.def.section;
1254 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
1256 printf ("+%s\n", h->string);
1260 #endif /* DLL_SUPPORT */
1263 debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
1265 int *found = (int *) obj;
1266 if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
1271 pecoff_checksum_contents (bfd *abfd,
1272 void (*process) (const void *, size_t, void *),
1275 file_ptr filepos = (file_ptr) 0;
1282 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
1285 status = bfd_bread (&b, (bfd_size_type) 1, abfd);
1291 (*process) (&b, 1, arg);
1299 write_build_id (bfd *abfd)
1301 struct pe_tdata *t = pe_data (abfd);
1303 struct bfd_link_order *link_order = NULL;
1304 unsigned char *contents;
1306 bfd_size_type build_id_size;
1307 unsigned char *build_id;
1309 /* Find the section the .buildid output section has been merged info. */
1310 for (asec = abfd->sections; asec != NULL; asec = asec->next)
1312 struct bfd_link_order *l = NULL;
1313 for (l = asec->map_head.link_order; l != NULL; l = l->next)
1315 if (l->type == bfd_indirect_link_order)
1317 if (l->u.indirect.section == t->build_id.sec)
1331 einfo (_("%P: warning: .buildid section discarded,"
1332 " --build-id ignored.\n"));
1336 if (t->build_id.sec->contents == NULL)
1337 t->build_id.sec->contents = (unsigned char *) xmalloc (t->build_id.sec->size);
1338 contents = t->build_id.sec->contents;
1339 size = t->build_id.sec->size;
1341 build_id_size = compute_build_id_size (t->build_id.style);
1342 build_id = xmalloc (build_id_size);
1343 generate_build_id (abfd, t->build_id.style, pecoff_checksum_contents, build_id, build_id_size);
1345 bfd_vma ib = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase;
1347 /* Construct a debug directory entry which points to an immediately following CodeView record. */
1348 struct internal_IMAGE_DEBUG_DIRECTORY idd;
1349 idd.Characteristics = 0;
1350 idd.TimeDateStamp = 0;
1351 idd.MajorVersion = 0;
1352 idd.MinorVersion = 0;
1353 idd.Type = PE_IMAGE_DEBUG_TYPE_CODEVIEW;
1354 idd.SizeOfData = sizeof (CV_INFO_PDB70) + 1;
1355 idd.AddressOfRawData = asec->vma - ib + link_order->offset
1356 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1357 idd.PointerToRawData = asec->filepos + link_order->offset
1358 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1360 struct external_IMAGE_DEBUG_DIRECTORY *ext = (struct external_IMAGE_DEBUG_DIRECTORY *)contents;
1361 _bfd_XXi_swap_debugdir_out (abfd, &idd, ext);
1363 /* Write the debug directory entry. */
1364 if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0)
1367 if (bfd_bwrite (contents, size, abfd) != size)
1370 /* Construct the CodeView record. */
1371 CODEVIEW_INFO cvinfo;
1372 cvinfo.CVSignature = CVINFO_PDB70_CVSIGNATURE;
1375 /* Zero pad or truncate the generated build_id to fit in the CodeView record. */
1376 memset (&(cvinfo.Signature), 0, CV_INFO_SIGNATURE_LENGTH);
1377 memcpy (&(cvinfo.Signature), build_id, (build_id_size > CV_INFO_SIGNATURE_LENGTH)
1378 ? CV_INFO_SIGNATURE_LENGTH : build_id_size);
1382 /* Write the codeview record. */
1383 if (_bfd_XXi_write_codeview_record (abfd, idd.PointerToRawData, &cvinfo) == 0)
1386 /* Record the location of the debug directory in the data directory. */
1387 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress
1388 = asec->vma - ib + link_order->offset;
1389 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size
1390 = sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1395 /* Make .buildid section, and set up coff_tdata->build_id. */
1397 setup_build_id (bfd *ibfd)
1402 if (!validate_build_id_style (emit_build_id))
1404 einfo ("%P: warning: unrecognized --build-id style ignored.\n");
1408 flags = (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
1409 | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
1410 s = bfd_make_section_anyway_with_flags (ibfd, ".buildid", flags);
1413 struct pe_tdata *t = pe_data (link_info.output_bfd);
1414 t->build_id.after_write_object_contents = &write_build_id;
1415 t->build_id.style = emit_build_id;
1416 t->build_id.sec = s;
1418 /* Section is a fixed size:
1419 One IMAGE_DEBUG_DIRECTORY entry, of type IMAGE_DEBUG_TYPE_CODEVIEW,
1420 pointing at a CV_INFO_PDB70 record containing the build-id, with a
1421 null byte for PdbFileName. */
1422 s->size = sizeof (struct external_IMAGE_DEBUG_DIRECTORY)
1423 + sizeof (CV_INFO_PDB70) + 1;
1428 einfo ("%P: warning: Cannot create .buildid section,"
1429 " --build-id ignored.\n");
1434 gld_${EMULATION_NAME}_after_open (void)
1436 after_open_default ();
1439 if (pe_dll_extra_pe_debug)
1442 struct bfd_link_hash_entry *sym;
1444 printf ("%s()\n", __FUNCTION__);
1446 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1447 printf ("-%s\n", sym->root.string);
1448 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1450 for (a = link_info.input_bfds; a; a = a->link.next)
1451 printf ("*%s\n",a->filename);
1455 if (emit_build_id != NULL)
1459 /* Find a COFF input. */
1460 for (abfd = link_info.input_bfds;
1461 abfd != (bfd *) NULL; abfd = abfd->link.next)
1462 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
1465 /* If there are no COFF input files do not try to
1466 add a build-id section. */
1468 || !setup_build_id (abfd))
1470 free ((char *) emit_build_id);
1471 emit_build_id = NULL;
1475 /* Pass the wacky PE command line options into the output bfd.
1476 FIXME: This should be done via a function, rather than by
1477 including an internal BFD header. */
1479 if (coff_data (link_info.output_bfd) == NULL
1480 || coff_data (link_info.output_bfd)->pe == 0)
1481 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"),
1482 link_info.output_bfd);
1484 pe_data (link_info.output_bfd)->pe_opthdr = pe;
1485 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1486 pe_data (link_info.output_bfd)->real_flags |= real_flags;
1487 pe_data (link_info.output_bfd)->insert_timestamp = insert_timestamp;
1489 /* At this point we must decide whether to use long section names
1490 in the output or not. If the user hasn't explicitly specified
1491 on the command line, we leave it to the default for the format
1492 (object files yes, image files no), except if there is debug
1493 information present; GDB relies on the long section names to
1494 find it, so enable it in that case. */
1495 if (pe_use_coff_long_section_names < 0 && link_info.strip == strip_none)
1497 if (bfd_link_relocatable (&link_info))
1498 pe_use_coff_long_section_names = 1;
1501 /* Iterate over all sections of all input BFDs, checking
1502 for any that begin 'debug_' and are long names. */
1503 LANG_FOR_EACH_INPUT_STATEMENT (is)
1505 int found_debug = 0;
1507 bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
1510 pe_use_coff_long_section_names = 1;
1517 pe_output_file_set_long_section_names (link_info.output_bfd);
1520 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
1521 pe_fixup_stdcalls ();
1523 pe_process_import_defs (link_info.output_bfd, &link_info);
1525 pe_find_data_imports ();
1527 /* As possibly new symbols are added by imports, we rerun
1528 stdcall/fastcall fixup here. */
1529 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
1530 pe_fixup_stdcalls ();
1532 #if defined (TARGET_IS_i386pe) \
1533 || defined (TARGET_IS_armpe) \
1534 || defined (TARGET_IS_arm_epoc_pe) \
1535 || defined (TARGET_IS_arm_wince_pe)
1536 if (!bfd_link_relocatable (&link_info))
1537 pe_dll_build_sections (link_info.output_bfd, &link_info);
1539 if (bfd_link_pic (&link_info))
1540 pe_dll_build_sections (link_info.output_bfd, &link_info);
1542 pe_exe_build_sections (link_info.output_bfd, &link_info);
1544 #endif /* DLL_SUPPORT */
1546 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1547 if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
1549 /* The arm backend needs special fields in the output hash structure.
1550 These will only be created if the output format is an arm format,
1551 hence we do not support linking and changing output formats at the
1552 same time. Use a link followed by objcopy to change output formats. */
1553 einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
1557 /* Find a BFD that can hold the interworking stubs. */
1558 LANG_FOR_EACH_INPUT_STATEMENT (is)
1560 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
1567 /* This next chunk of code tries to detect the case where you have
1568 two import libraries for the same DLL (specifically,
1569 symbolically linking libm.a and libc.a in cygwin to
1570 libcygwin.a). In those cases, it's possible for function
1571 thunks from the second implib to be used but without the
1572 head/tail objects, causing an improper import table. We detect
1573 those cases and rename the "other" import libraries to match
1574 the one the head/tail come from, so that the linker will sort
1575 things nicely and produce a valid import table. */
1577 LANG_FOR_EACH_INPUT_STATEMENT (is)
1579 if (is->the_bfd->my_archive)
1581 int idata2 = 0, reloc_count=0, is_imp = 0;
1584 /* See if this is an import library thunk. */
1585 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1587 if (strcmp (sec->name, ".idata\$2") == 0)
1589 if (CONST_STRNEQ (sec->name, ".idata\$"))
1591 reloc_count += sec->reloc_count;
1594 if (is_imp && !idata2 && reloc_count)
1596 /* It is, look for the reference to head and see if it's
1597 from our own library. */
1598 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1606 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1610 if (!bfd_generic_link_read_symbols (is->the_bfd))
1612 einfo (_("%B%F: could not read symbols: %E\n"),
1616 symbols = bfd_get_outsymbols (is->the_bfd);
1618 relocs = xmalloc ((size_t) relsize);
1619 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1624 einfo ("%X%P: unable to process relocs: %E\n");
1628 for (i = 0; i < nrelocs; i++)
1630 struct bfd_symbol *s;
1631 struct bfd_link_hash_entry * blhe;
1632 char *other_bfd_filename;
1635 s = (relocs[i]->sym_ptr_ptr)[0];
1637 if (s->flags & BSF_LOCAL)
1640 /* Thunk section with reloc to another bfd. */
1641 blhe = bfd_link_hash_lookup (link_info.hash,
1643 FALSE, FALSE, TRUE);
1646 || blhe->type != bfd_link_hash_defined)
1650 = blhe->u.def.section->owner->my_archive
1651 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1652 : bfd_get_filename (blhe->u.def.section->owner);
1654 if (filename_cmp (bfd_get_filename
1655 (is->the_bfd->my_archive),
1656 other_bfd_filename) == 0)
1659 /* Rename this implib to match the other one. */
1660 n = xmalloc (strlen (other_bfd_filename) + 1);
1661 strcpy (n, other_bfd_filename);
1662 is->the_bfd->my_archive->filename = n;
1666 /* Note - we do not free the symbols,
1667 they are now cached in the BFD. */
1677 lang_input_statement_type *is2;
1678 lang_input_statement_type *is3;
1680 /* Careful - this is a shell script. Watch those dollar signs! */
1681 /* Microsoft import libraries have every member named the same,
1682 and not in the right order for us to link them correctly. We
1683 must detect these and rename the members so that they'll link
1684 correctly. There are three types of objects: the head, the
1685 thunks, and the sentinel(s). The head is easy; it's the one
1686 with idata2. We assume that the sentinels won't have relocs,
1687 and the thunks will. It's easier than checking the symbol
1688 table for external references. */
1689 LANG_FOR_EACH_INPUT_STATEMENT (is)
1691 if (is->the_bfd->my_archive)
1694 bfd *arch = is->the_bfd->my_archive;
1696 if (cur_arch != arch)
1702 is3 && is3->the_bfd->my_archive == arch;
1703 is3 = (lang_input_statement_type *) is3->next)
1705 /* A MS dynamic import library can also contain static
1706 members, so look for the first element with a .dll
1707 extension, and use that for the remainder of the
1709 pnt = strrchr (is3->the_bfd->filename, '.');
1710 if (pnt != NULL && filename_cmp (pnt, ".dll") == 0)
1718 /* OK, found one. Now look to see if the remaining
1719 (dynamic import) members use the same name. */
1721 is2 && is2->the_bfd->my_archive == arch;
1722 is2 = (lang_input_statement_type *) is2->next)
1724 /* Skip static members, ie anything with a .obj
1726 pnt = strrchr (is2->the_bfd->filename, '.');
1727 if (pnt != NULL && filename_cmp (pnt, ".obj") == 0)
1730 if (filename_cmp (is3->the_bfd->filename,
1731 is2->the_bfd->filename))
1740 /* This fragment might have come from an .obj file in a Microsoft
1741 import, and not an actual import record. If this is the case,
1742 then leave the filename alone. */
1743 pnt = strrchr (is->the_bfd->filename, '.');
1745 if (is_ms_arch && (filename_cmp (pnt, ".dll") == 0))
1747 int idata2 = 0, reloc_count=0;
1749 char *new_name, seq;
1751 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1753 if (strcmp (sec->name, ".idata\$2") == 0)
1755 reloc_count += sec->reloc_count;
1758 if (idata2) /* .idata2 is the TOC */
1760 else if (reloc_count > 0) /* thunks */
1765 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1766 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1767 is->the_bfd->filename = new_name;
1769 new_name = xmalloc (strlen (is->filename) + 3);
1770 sprintf (new_name, "%s.%c", is->filename, seq);
1771 is->filename = new_name;
1778 /* The following chunk of code tries to identify jump stubs in
1779 import libraries which are dead code and eliminates them
1780 from the final link. For each exported symbol <sym>, there
1781 is a object file in the import library with a .text section
1782 and several .idata\$* sections. The .text section contains the
1783 symbol definition for <sym> which is a jump stub of the form
1784 jmp *__imp_<sym>. The .idata\$5 contains the symbol definition
1785 for __imp_<sym> which is the address of the slot for <sym> in
1786 the import address table. When a symbol is imported explicitly
1787 using __declspec(dllimport) declaration, the compiler generates
1788 a reference to __imp_<sym> which directly resolves to the
1789 symbol in .idata\$5, in which case the jump stub code is not
1790 needed. The following code tries to identify jump stub sections
1791 in import libraries which are not referred to by anyone and
1792 marks them for exclusion from the final link. */
1793 LANG_FOR_EACH_INPUT_STATEMENT (is)
1795 if (is->the_bfd->my_archive)
1798 asection *sec, *stub_sec = NULL;
1800 /* See if this is an import library thunk. */
1801 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1803 if (strncmp (sec->name, ".idata\$", 7) == 0)
1805 /* The section containing the jmp stub has code
1807 if ((sec->flags & SEC_CODE) && sec->reloc_count)
1811 if (is_imp && stub_sec)
1814 long nsyms, src_count;
1815 struct bfd_link_hash_entry * blhe;
1817 if (!bfd_generic_link_read_symbols (is->the_bfd))
1819 einfo (_("%B%F: could not read symbols: %E\n"),
1823 symbols = bfd_get_outsymbols (is->the_bfd);
1824 nsyms = bfd_get_symcount (is->the_bfd);
1826 for (src_count = 0; src_count < nsyms; src_count++)
1828 if (symbols[src_count]->section->id == stub_sec->id)
1830 /* This symbol belongs to the section containing
1832 blhe = bfd_link_hash_lookup (link_info.hash,
1833 symbols[src_count]->name,
1834 FALSE, FALSE, TRUE);
1835 /* If the symbol in the stub section has no other
1836 undefined references, exclude the stub section
1837 from the final link. */
1839 && blhe->type == bfd_link_hash_defined
1840 && blhe->u.undef.next == NULL
1841 && blhe != link_info.hash->undefs_tail)
1842 stub_sec->flags |= SEC_EXCLUDE;
1852 gld_${EMULATION_NAME}_before_allocation (void)
1854 #ifdef TARGET_IS_ppcpe
1855 /* Here we rummage through the found bfds to collect toc information. */
1857 LANG_FOR_EACH_INPUT_STATEMENT (is)
1859 if (!ppc_process_before_allocation (is->the_bfd, &link_info))
1861 /* xgettext:c-format */
1862 einfo (_("Errors encountered processing file %s\n"), is->filename);
1867 /* We have seen it all. Allocate it, and carry on. */
1868 ppc_allocate_toc_section (&link_info);
1869 #endif /* TARGET_IS_ppcpe */
1871 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1872 /* FIXME: we should be able to set the size of the interworking stub
1875 Here we rummage through the found bfds to collect glue
1876 information. FIXME: should this be based on a command line
1877 option? krk@cygnus.com. */
1879 LANG_FOR_EACH_INPUT_STATEMENT (is)
1881 if (! bfd_arm_process_before_allocation
1882 (is->the_bfd, & link_info, support_old_code))
1884 /* xgettext:c-format */
1885 einfo (_("Errors encountered processing file %s for interworking\n"),
1891 /* We have seen it all. Allocate it, and carry on. */
1892 bfd_arm_allocate_interworking_sections (& link_info);
1893 #endif /* TARGET_IS_armpe || TARGET_IS_arm_epoc_pe || TARGET_IS_arm_wince_pe */
1895 before_allocation_default ();
1899 /* This is called when an input file isn't recognized as a BFD. We
1900 check here for .DEF files and pull them in automatically. */
1903 saw_option (char *option)
1907 for (i = 0; init[i].ptr; i++)
1908 if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0)
1909 return init[i].inited;
1912 #endif /* DLL_SUPPORT */
1915 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1918 const char *ext = entry->filename + strlen (entry->filename) - 4;
1920 if (filename_cmp (ext, ".def") == 0 || filename_cmp (ext, ".DEF") == 0)
1922 pe_def_file = def_file_parse (entry->filename, pe_def_file);
1926 int i, buflen=0, len;
1929 for (i = 0; i < pe_def_file->num_exports; i++)
1931 len = strlen (pe_def_file->exports[i].internal_name);
1932 if (buflen < len + 2)
1936 buf = xmalloc (buflen);
1938 for (i = 0; i < pe_def_file->num_exports; i++)
1940 struct bfd_link_hash_entry *h;
1942 sprintf (buf, "%s%s", U (""),
1943 pe_def_file->exports[i].internal_name);
1945 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1946 if (h == (struct bfd_link_hash_entry *) NULL)
1947 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1948 if (h->type == bfd_link_hash_new)
1950 h->type = bfd_link_hash_undefined;
1951 h->u.undef.abfd = NULL;
1952 bfd_link_add_undef (link_info.hash, h);
1957 /* def_file_print (stdout, pe_def_file); */
1958 if (pe_def_file->is_dll == 1)
1959 link_info.type = type_dll;
1961 if (pe_def_file->base_address != (bfd_vma)(-1))
1964 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1965 = init[IMAGEBASEOFF].value
1966 = pe_def_file->base_address;
1967 init[IMAGEBASEOFF].inited = 1;
1968 if (image_base_statement)
1969 image_base_statement->exp
1970 = exp_assign ("__image_base__", exp_intop (pe.ImageBase),
1974 if (pe_def_file->stack_reserve != -1
1975 && ! saw_option ("__size_of_stack_reserve__"))
1977 pe.SizeOfStackReserve = pe_def_file->stack_reserve;
1978 if (pe_def_file->stack_commit != -1)
1979 pe.SizeOfStackCommit = pe_def_file->stack_commit;
1981 if (pe_def_file->heap_reserve != -1
1982 && ! saw_option ("__size_of_heap_reserve__"))
1984 pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
1985 if (pe_def_file->heap_commit != -1)
1986 pe.SizeOfHeapCommit = pe_def_file->heap_commit;
1996 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1999 #ifdef TARGET_IS_i386pe
2000 pe_dll_id_target ("pei-i386");
2002 #ifdef TARGET_IS_shpe
2003 pe_dll_id_target ("pei-shl");
2005 #ifdef TARGET_IS_armpe
2006 pe_dll_id_target ("pei-arm-little");
2008 #ifdef TARGET_IS_arm_epoc_pe
2009 pe_dll_id_target ("epoc-pei-arm-little");
2011 #ifdef TARGET_IS_arm_wince_pe
2012 pe_dll_id_target ("pei-arm-wince-little");
2014 if (pe_bfd_is_dll (entry->the_bfd))
2015 return pe_implied_import_dll (entry->filename);
2021 gld_${EMULATION_NAME}_finish (void)
2023 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
2024 struct bfd_link_hash_entry * h;
2026 if (thumb_entry_symbol != NULL)
2028 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
2029 FALSE, FALSE, TRUE);
2031 if (h != (struct bfd_link_hash_entry *) NULL
2032 && (h->type == bfd_link_hash_defined
2033 || h->type == bfd_link_hash_defweak)
2034 && h->u.def.section->output_section != NULL)
2036 static char buffer[32];
2039 /* Special procesing is required for a Thumb entry symbol. The
2040 bottom bit of its address must be set. */
2041 val = (h->u.def.value
2042 + bfd_get_section_vma (link_info.output_bfd,
2043 h->u.def.section->output_section)
2044 + h->u.def.section->output_offset);
2048 /* Now convert this value into a string and store it in entry_symbol
2049 where the lang_finish() function will pick it up. */
2053 sprintf_vma (buffer + 2, val);
2055 if (entry_symbol.name != NULL && entry_from_cmdline)
2056 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
2057 thumb_entry_symbol, entry_symbol.name);
2058 entry_symbol.name = buffer;
2061 einfo (_("%P: warning: cannot find thumb start symbol %s\n"), thumb_entry_symbol);
2063 #endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) */
2068 if (bfd_link_pic (&link_info)
2069 #if !defined(TARGET_IS_shpe)
2070 || (!bfd_link_relocatable (&link_info)
2071 && pe_def_file->num_exports != 0)
2075 pe_dll_fill_sections (link_info.output_bfd, &link_info);
2076 if (pe_implib_filename)
2077 pe_dll_generate_implib (pe_def_file, pe_implib_filename, &link_info);
2079 #if defined(TARGET_IS_shpe)
2080 /* ARM doesn't need relocs. */
2083 pe_exe_fill_sections (link_info.output_bfd, &link_info);
2087 if (pe_out_def_filename)
2088 pe_dll_generate_def_file (pe_out_def_filename);
2089 #endif /* DLL_SUPPORT */
2091 /* I don't know where .idata gets set as code, but it shouldn't be. */
2093 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
2097 asec->flags &= ~SEC_CODE;
2098 asec->flags |= SEC_DATA;
2104 /* Place an orphan section.
2106 We use this to put sections in a reasonable place in the file, and
2107 to ensure that they are aligned as required.
2109 We handle grouped sections here as well. A section named .foo\$nn
2110 goes into the output section .foo. All grouped sections are sorted
2113 Grouped sections for the default sections are handled by the
2114 default linker script using wildcards, and are sorted by
2117 static lang_output_section_statement_type *
2118 gld_${EMULATION_NAME}_place_orphan (asection *s,
2119 const char *secname,
2122 const char *orig_secname = secname;
2123 char *dollar = NULL;
2124 lang_output_section_statement_type *os;
2125 lang_statement_list_type add_child;
2126 lang_output_section_statement_type *match_by_name = NULL;
2127 lang_statement_union_type **pl;
2129 /* Look through the script to see where to place this section. */
2130 if (!bfd_link_relocatable (&link_info)
2131 && (dollar = strchr (secname, '\$')) != NULL)
2133 size_t len = dollar - secname;
2134 char *newname = xmalloc (len + 1);
2135 memcpy (newname, secname, len);
2136 newname[len] = '\0';
2140 lang_list_init (&add_child);
2143 if (constraint == 0)
2144 for (os = lang_output_section_find (secname);
2146 os = next_matching_output_section_statement (os, 0))
2148 /* If we don't match an existing output section, tell
2149 lang_insert_orphan to create a new output section. */
2150 constraint = SPECIAL;
2152 if (os->bfd_section != NULL
2153 && (os->bfd_section->flags == 0
2154 || ((s->flags ^ os->bfd_section->flags)
2155 & (SEC_LOAD | SEC_ALLOC)) == 0))
2157 /* We already have an output section statement with this
2158 name, and its bfd section has compatible flags.
2159 If the section already exists but does not have any flags set,
2160 then it has been created by the linker, probably as a result of
2161 a --section-start command line switch. */
2162 lang_add_section (&add_child, s, NULL, os);
2166 /* Save unused output sections in case we can match them
2167 against orphans later. */
2168 if (os->bfd_section == NULL)
2172 /* If we didn't match an active output section, see if we matched an
2173 unused one and use that. */
2174 if (os == NULL && match_by_name)
2176 lang_add_section (&match_by_name->children, s, NULL, match_by_name);
2177 return match_by_name;
2182 static struct orphan_save hold[] =
2185 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
2188 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
2191 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
2194 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
2200 enum orphan_save_index
2208 static int orphan_init_done = 0;
2209 struct orphan_save *place;
2210 lang_output_section_statement_type *after;
2211 etree_type *address;
2215 if (!orphan_init_done)
2217 struct orphan_save *ho;
2218 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
2219 if (ho->name != NULL)
2221 ho->os = lang_output_section_find (ho->name);
2222 if (ho->os != NULL && ho->os->flags == 0)
2223 ho->os->flags = ho->flags;
2225 orphan_init_done = 1;
2229 if (!bfd_link_relocatable (&link_info))
2232 while ((nexts = bfd_get_next_section_by_name (nexts->owner,
2234 if (nexts->output_section == NULL
2235 && (nexts->flags & SEC_EXCLUDE) == 0
2236 && ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0
2237 && (nexts->owner->flags & DYNAMIC) == 0
2238 && nexts->owner->usrdata != NULL
2239 && !(((lang_input_statement_type *) nexts->owner->usrdata)
2241 flags = (((flags ^ SEC_READONLY)
2242 | (nexts->flags ^ SEC_READONLY))
2246 /* Try to put the new output section in a reasonable place based
2247 on the section name and section flags. */
2250 if ((flags & SEC_ALLOC) == 0)
2252 else if ((flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
2253 place = &hold[orphan_bss];
2254 else if ((flags & SEC_READONLY) == 0)
2255 place = &hold[orphan_data];
2256 else if ((flags & SEC_CODE) == 0)
2258 place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata]
2259 : &hold[orphan_rodata]);
2262 place = &hold[orphan_text];
2267 if (place->os == NULL)
2268 place->os = lang_output_section_find (place->name);
2271 after = lang_output_section_find_by_flags (s, flags, &place->os,
2274 /* *ABS* is always the first output section statement. */
2275 after = (&lang_output_section_statement.head
2276 ->output_section_statement);
2279 /* All sections in an executable must be aligned to a page boundary.
2280 In a relocatable link, just preserve the incoming alignment; the
2281 address is discarded by lang_insert_orphan in that case, anyway. */
2282 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
2283 os = lang_insert_orphan (s, secname, constraint, after, place, address,
2285 if (bfd_link_relocatable (&link_info))
2287 os->section_alignment = s->alignment_power;
2288 os->bfd_section->alignment_power = s->alignment_power;
2292 /* If the section name has a '\$', sort it with the other '\$'
2294 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next)
2296 lang_input_section_type *ls;
2299 if ((*pl)->header.type != lang_input_section_enum)
2302 ls = &(*pl)->input_section;
2304 lname = bfd_get_section_name (ls->section->owner, ls->section);
2305 if (strchr (lname, '\$') != NULL
2306 && (dollar == NULL || strcmp (orig_secname, lname) < 0))
2310 if (add_child.head != NULL)
2312 *add_child.tail = *pl;
2313 *pl = add_child.head;
2320 gld_${EMULATION_NAME}_open_dynamic_archive
2321 (const char *arch ATTRIBUTE_UNUSED,
2322 search_dirs_type *search,
2323 lang_input_statement_type *entry)
2327 const char * format;
2328 bfd_boolean use_prefix;
2332 /* Preferred explicit import library for dll's. */
2333 { "lib%s.dll.a", FALSE },
2334 /* Alternate explicit import library for dll's. */
2335 { "%s.dll.a", FALSE },
2336 /* "libfoo.a" could be either an import lib or a static lib.
2337 For backwards compatibility, libfoo.a needs to precede
2338 libfoo.dll and foo.dll in the search. */
2339 { "lib%s.a", FALSE },
2340 /* The 'native' spelling of an import lib name is "foo.lib". */
2341 { "%s.lib", FALSE },
2343 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
2344 { "%s%s.dll", TRUE },
2346 /* Try "libfoo.dll" (default preferred dll name). */
2347 { "lib%s.dll", FALSE },
2348 /* Finally try 'native' dll name "foo.dll". */
2349 { "%s.dll", FALSE },
2350 /* Note: If adding more formats to this table, make sure to check to
2351 see if their length is longer than libname_fmt[0].format, and if
2352 so, update the call to xmalloc() below. */
2355 static unsigned int format_max_len = 0;
2356 const char * filename;
2362 if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
2365 filename = entry->filename;
2367 if (format_max_len == 0)
2368 /* We need to allow space in the memory that we are going to allocate
2369 for the characters in the format string. Since the format array is
2370 static we only need to calculate this information once. In theory
2371 this value could also be computed statically, but this introduces
2372 the possibility for a discrepancy and hence a possible memory
2373 corruption. The lengths we compute here will be too long because
2374 they will include any formating characters (%s) in the strings, but
2375 this will not matter. */
2376 for (i = 0; libname_fmt[i].format; i++)
2377 if (format_max_len < strlen (libname_fmt[i].format))
2378 format_max_len = strlen (libname_fmt[i].format);
2380 full_string = xmalloc (strlen (search->name)
2384 + (pe_dll_search_prefix
2385 ? strlen (pe_dll_search_prefix) : 0)
2387 /* Allow for the terminating NUL and for the path
2388 separator character that is inserted between
2389 search->name and the start of the format string. */
2392 sprintf (full_string, "%s/", search->name);
2393 base_string = full_string + strlen (full_string);
2395 for (i = 0; libname_fmt[i].format; i++)
2398 if (libname_fmt[i].use_prefix)
2400 if (!pe_dll_search_prefix)
2402 sprintf (base_string, libname_fmt[i].format, pe_dll_search_prefix, filename);
2406 sprintf (base_string, libname_fmt[i].format, filename);
2408 if (ldfile_try_open_bfd (full_string, entry))
2412 if (!libname_fmt[i].format)
2418 entry->filename = full_string;
2424 gld_${EMULATION_NAME}_find_potential_libraries
2425 (char *name, lang_input_statement_type *entry)
2427 return ldfile_open_file_search (name, entry, "", ".lib");
2431 gld_${EMULATION_NAME}_get_script (int *isfile)
2433 # Scripts compiled in.
2434 # sed commands to quote an ld script as a C string.
2435 sc="-f stringify.sed"
2441 if (bfd_link_relocatable (&link_info) && config.build_constructors)
2444 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
2445 echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
2446 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
2447 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
2448 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
2449 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
2450 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
2451 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
2452 echo ' ; else if (link_info.pei386_auto_import == 1 && (MERGE_RDATA_V2 || link_info.pei386_runtime_pseudo_reloc != 2)) return' >> e${EMULATION_NAME}.c
2453 sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
2455 echo ' ; else return' >> e${EMULATION_NAME}.c
2456 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
2457 echo '; }' >> e${EMULATION_NAME}.c
2462 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
2464 gld_${EMULATION_NAME}_before_parse,
2467 gld_${EMULATION_NAME}_after_parse,
2468 gld_${EMULATION_NAME}_after_open,
2469 after_allocation_default,
2470 set_output_arch_default,
2471 ldemul_default_target,
2472 gld_${EMULATION_NAME}_before_allocation,
2473 gld_${EMULATION_NAME}_get_script,
2474 "${EMULATION_NAME}",
2476 gld_${EMULATION_NAME}_finish,
2477 NULL, /* Create output section statements. */
2478 gld_${EMULATION_NAME}_open_dynamic_archive,
2479 gld_${EMULATION_NAME}_place_orphan,
2480 gld_${EMULATION_NAME}_set_symbols,
2481 NULL, /* parse_args */
2482 gld${EMULATION_NAME}_add_options,
2483 gld${EMULATION_NAME}_handle_option,
2484 gld_${EMULATION_NAME}_unrecognized_file,
2485 gld_${EMULATION_NAME}_list_options,
2486 gld_${EMULATION_NAME}_recognized_file,
2487 gld_${EMULATION_NAME}_find_potential_libraries,
2488 NULL, /* new_vers_pattern. */
2489 NULL /* extra_map_file_text. */