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Make use of the frame stash to detect wider stack cycles.
[thirdparty/binutils-gdb.git] / ld / emultempl / pep.em
CommitLineData
99ad8390
NC		 1# This shell script emits a C file. -*- C -*-
2# It does some substitutions.
99ad8390
NC		 3if [ -z "$MACHINE" ]; then
4 OUTPUT_ARCH=${ARCH}
5else
6 OUTPUT_ARCH=${ARCH}:${MACHINE}
7fi
a07ee50e
CV		 8
9case ${target} in
10 *-*-cygwin*)
11 move_default_addr_high=1
12 ;;
13 *)
14 move_default_addr_high=0;
15 ;;
16esac
17
99ad8390
NC		 18rm -f e${EMULATION_NAME}.c
19(echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
92b93329 20fragment <<EOF
66be1055 21/* Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2012
2e57b2af 22 Free Software Foundation, Inc.
f96b4a7b
NC		 23 Written by Kai Tietz, OneVision Software GmbH&CoKg.
24
25 This file is part of the GNU Binutils.
99ad8390
NC		 26
27 This program is free software; you can redistribute it and/or modify
28 it under the terms of the GNU General Public License as published by
f96b4a7b 29 the Free Software Foundation; either version 3 of the License, or
99ad8390
NC		 30 (at your option) any later version.
31
32 This program is distributed in the hope that it will be useful,
33 but WITHOUT ANY WARRANTY; without even the implied warranty of
34 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
35 GNU General Public License for more details.
36
37 You should have received a copy of the GNU General Public License
38 along with this program; if not, write to the Free Software
f96b4a7b
NC		 39 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
40 MA 02110-1301, USA. */
41
99ad8390
NC		 42
43/* For WINDOWS_XP64 and higher */
44/* Based on pe.em, but modified for 64 bit support. */
45
46#define TARGET_IS_${EMULATION_NAME}
47
48#define COFF_IMAGE_WITH_PE
49#define COFF_WITH_PE
50#define COFF_WITH_pex64
51
99ad8390 52#include "sysdep.h"
3db64b00 53#include "bfd.h"
99ad8390
NC		 54#include "bfdlink.h"
55#include "getopt.h"
56#include "libiberty.h"
42627821 57#include "filenames.h"
99ad8390
NC		 58#include "ld.h"
59#include "ldmain.h"
60#include "ldexp.h"
61#include "ldlang.h"
62#include "ldfile.h"
63#include "ldemul.h"
64#include <ldgram.h>
65#include "ldlex.h"
66#include "ldmisc.h"
67#include "ldctor.h"
68#include "coff/internal.h"
69
70/* FIXME: See bfd/peXXigen.c for why we include an architecture specific
71 header in generic PE code. */
72#include "coff/x86_64.h"
73#include "coff/pe.h"
74
75/* FIXME: This is a BFD internal header file, and we should not be
76 using it here. */
77#include "../bfd/libcoff.h"
78
79#undef AOUTSZ
80#define AOUTSZ PEPAOUTSZ
81#define PEAOUTHDR PEPAOUTHDR
82
83#include "deffile.h"
84#include "pep-dll.h"
85#include "safe-ctype.h"
86
87/* Permit the emulation parameters to override the default section
88 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
89 it seem that include/coff/internal.h should not define
90 PE_DEF_SECTION_ALIGNMENT. */
91#if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
92#undef PE_DEF_SECTION_ALIGNMENT
93#define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
94#endif
95
96#ifdef TARGET_IS_i386pep
97#define DLL_SUPPORT
98#endif
99
100#if defined(TARGET_IS_i386pep) || ! defined(DLL_SUPPORT)
101#define PE_DEF_SUBSYSTEM 3
a07ee50e
CV		 102#undef NT_EXE_IMAGE_BASE
103#define NT_EXE_IMAGE_BASE \
104 ((bfd_vma) (${move_default_addr_high} ? 0x100400000LL \
105 : 0x400000LL))
106#undef NT_DLL_IMAGE_BASE
107#define NT_DLL_IMAGE_BASE \
108 ((bfd_vma) (${move_default_addr_high} ? 0x400000000LL \
109 : 0x10000000LL))
110#undef NT_DLL_AUTO_IMAGE_BASE
111#define NT_DLL_AUTO_IMAGE_BASE \
112 ((bfd_vma) (${move_default_addr_high} ? 0x400000000LL \
113 : 0x61300000LL))
114#undef NT_DLL_AUTO_IMAGE_MASK
115#define NT_DLL_AUTO_IMAGE_MASK \
116 ((bfd_vma) (${move_default_addr_high} ? 0x1ffff0000LL \
117 : 0x0ffc0000LL))
99ad8390
NC		 118#else
119#undef NT_EXE_IMAGE_BASE
a07ee50e
CV		 120#define NT_EXE_IMAGE_BASE \
121 ((bfd_vma) (${move_default_addr_high} ? 0x100010000LL \
122 : 0x10000LL))
123#undef NT_DLL_IMAGE_BASE
124#define NT_DLL_IMAGE_BASE \
125 ((bfd_vma) (${move_default_addr_high} ? 0x110000000LL \
126 : 0x10000000LL))
127#undef NT_DLL_AUTO_IMAGE_BASE
128#define NT_DLL_AUTO_IMAGE_BASE \
129 ((bfd_vma) (${move_default_addr_high} ? 0x120000000LL \
130 : 0x61300000LL))
131#undef NT_DLL_AUTO_IMAGE_MASK
132#define NT_DLL_AUTO_IMAGE_MASK \
133 ((bfd_vma) (${move_default_addr_high} ? 0x0ffff0000LL \
134 : 0x0ffc0000LL))
99ad8390
NC		 135#undef PE_DEF_SECTION_ALIGNMENT
136#define PE_DEF_SUBSYSTEM 2
137#undef PE_DEF_FILE_ALIGNMENT
138#define PE_DEF_FILE_ALIGNMENT 0x00000200
139#define PE_DEF_SECTION_ALIGNMENT 0x00000400
140#endif
141
99ad8390
NC		 142static struct internal_extra_pe_aouthdr pep;
143static int dll;
decfa41e 144static int pep_subsystem = ${SUBSYSTEM};
99ad8390
NC		 145static flagword real_flags = IMAGE_FILE_LARGE_ADDRESS_AWARE;
146static int support_old_code = 0;
147static lang_assignment_statement_type *image_base_statement = 0;
2f563b51 148static unsigned short pe_dll_characteristics = 0;
99ad8390
NC		 149
150#ifdef DLL_SUPPORT
880383ca 151static int pep_enable_stdcall_fixup = 1; /* 0=disable 1=enable (default). */
99ad8390
NC		 152static char * pep_out_def_filename = NULL;
153static char * pep_implib_filename = NULL;
154static int pep_enable_auto_image_base = 0;
155static char * pep_dll_search_prefix = NULL;
156#endif
157
158extern const char *output_filename;
159
d74720d2 160static int is_underscoring (void)
99ad8390 161{
d74720d2
KT		 162 int u = 0;
163 if (pep_leading_underscore != -1)
164 return pep_leading_underscore;
165 if (!bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL))
b804e4af
KT		 166 bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL);
167
168 if (u == -1)
169 abort ();
d74720d2
KT		 170 pep_leading_underscore = (u != 0 ? 1 : 0);
171 return pep_leading_underscore;
172}
b804e4af 173
d74720d2
KT		 174
175static void
176gld_${EMULATION_NAME}_before_parse (void)
177{
178 is_underscoring ();
99ad8390
NC		 179 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
180 output_filename = "${EXECUTABLE_NAME:-a.exe}";
181#ifdef DLL_SUPPORT
66be1055 182 input_flags.dynamic = TRUE;
99ad8390 183 config.has_shared = 1;
6ec6c79c 184 link_info.pei386_auto_import = 1;
6cb442d3 185 link_info.pei386_runtime_pseudo_reloc = 2; /* Use by default version 2. */
99ad8390
NC		 186#endif
187}
188\f
189/* PE format extra command line options. */
190
191/* Used for setting flags in the PE header. */
192enum options
193{
194 OPTION_BASE_FILE = 300 + 1,
195 OPTION_DLL,
196 OPTION_FILE_ALIGNMENT,
197 OPTION_IMAGE_BASE,
198 OPTION_MAJOR_IMAGE_VERSION,
199 OPTION_MAJOR_OS_VERSION,
200 OPTION_MAJOR_SUBSYSTEM_VERSION,
201 OPTION_MINOR_IMAGE_VERSION,
202 OPTION_MINOR_OS_VERSION,
203 OPTION_MINOR_SUBSYSTEM_VERSION,
204 OPTION_SECTION_ALIGNMENT,
205 OPTION_STACK,
206 OPTION_SUBSYSTEM,
207 OPTION_HEAP,
208 OPTION_SUPPORT_OLD_CODE,
209 OPTION_OUT_DEF,
210 OPTION_EXPORT_ALL,
211 OPTION_EXCLUDE_SYMBOLS,
2927aaca 212 OPTION_EXCLUDE_ALL_SYMBOLS,
99ad8390
NC		 213 OPTION_KILL_ATS,
214 OPTION_STDCALL_ALIASES,
215 OPTION_ENABLE_STDCALL_FIXUP,
216 OPTION_DISABLE_STDCALL_FIXUP,
217 OPTION_IMPLIB_FILENAME,
218 OPTION_WARN_DUPLICATE_EXPORTS,
219 OPTION_IMP_COMPAT,
220 OPTION_ENABLE_AUTO_IMAGE_BASE,
221 OPTION_DISABLE_AUTO_IMAGE_BASE,
222 OPTION_DLL_SEARCH_PREFIX,
223 OPTION_NO_DEFAULT_EXCLUDES,
224 OPTION_DLL_ENABLE_AUTO_IMPORT,
225 OPTION_DLL_DISABLE_AUTO_IMPORT,
226 OPTION_ENABLE_EXTRA_PE_DEBUG,
227 OPTION_EXCLUDE_LIBS,
228 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC,
6cb442d3 229 OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC,
e1c37eb5 230 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2,
ce11ba6c 231 OPTION_EXCLUDE_MODULES_FOR_IMPLIB,
88183869 232 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES,
522f09cd
KT		 233 OPTION_NO_LEADING_UNDERSCORE,
234 OPTION_LEADING_UNDERSCORE,
88183869 235 OPTION_ENABLE_LONG_SECTION_NAMES,
2f563b51
DK		 236 OPTION_DISABLE_LONG_SECTION_NAMES,
237 OPTION_DYNAMIC_BASE,
238 OPTION_FORCE_INTEGRITY,
239 OPTION_NX_COMPAT,
240 OPTION_NO_ISOLATION,
241 OPTION_NO_SEH,
242 OPTION_NO_BIND,
243 OPTION_WDM_DRIVER,
244 OPTION_TERMINAL_SERVER_AWARE
99ad8390
NC		 245};
246
247static void
248gld${EMULATION_NAME}_add_options
249 (int ns ATTRIBUTE_UNUSED,
250 char **shortopts ATTRIBUTE_UNUSED,
251 int nl,
252 struct option **longopts,
253 int nrl ATTRIBUTE_UNUSED,
254 struct option **really_longopts ATTRIBUTE_UNUSED)
255{
256 static const struct option xtra_long[] =
257 {
258 /* PE options */
259 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
260 {"dll", no_argument, NULL, OPTION_DLL},
261 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
262 {"heap", required_argument, NULL, OPTION_HEAP},
263 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
264 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
265 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
266 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
267 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
268 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
269 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
270 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
271 {"stack", required_argument, NULL, OPTION_STACK},
272 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
273 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
ce11ba6c
KT		 274 {"use-nul-prefixed-import-tables", no_argument, NULL,
275 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},
522f09cd
KT		 276 {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE},
277 {"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE},
99ad8390
NC		 278#ifdef DLL_SUPPORT
279 /* getopt allows abbreviations, so we do this to stop it
280 from treating -o as an abbreviation for this option. */
281 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
282 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
283 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
284 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
2927aaca 285 {"exclude-all-symbols", no_argument, NULL, OPTION_EXCLUDE_ALL_SYMBOLS},
99ad8390 286 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
e1c37eb5 287 {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB},
99ad8390
NC		 288 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
289 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
290 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
291 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
292 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
293 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
294 /* getopt() allows abbreviations, so we do this to stop it from
295 treating -c as an abbreviation for these --compat-implib. */
296 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
297 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
298 {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
299 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
300 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
301 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
302 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
303 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
304 {"enable-extra-pep-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
305 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
306 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
6cb442d3 307 {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2},
99ad8390 308#endif
88183869
DK		 309 {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES},
310 {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES},
2f563b51
DK		 311 {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE},
312 {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY},
313 {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT},
314 {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION},
315 {"no-seh", no_argument, NULL, OPTION_NO_SEH},
316 {"no-bind", no_argument, NULL, OPTION_NO_BIND},
317 {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
d127ecce
AM		 318 {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
319 {NULL, no_argument, NULL, 0}
99ad8390
NC		 320 };
321
d127ecce
AM		 322 *longopts
323 = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
99ad8390
NC		 324 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
325}
326
327/* PE/WIN32; added routines to get the subsystem type, heap and/or stack
328 parameters which may be input from the command line. */
329
330typedef struct
331{
332 void *ptr;
333 int size;
0ead4f8d 334 bfd_vma value;
99ad8390
NC		 335 char *symbol;
336 int inited;
522f09cd
KT		 337 /* FALSE for an assembly level symbol and TRUE for a C visible symbol.
338 C visible symbols can be prefixed by underscore dependent on target's
339 settings. */
340 bfd_boolean is_c_symbol;
99ad8390
NC		 341} definfo;
342
522f09cd
KT		 343#define GET_INIT_SYMBOL_NAME(IDX) \
344 (init[(IDX)].symbol \
d74720d2 345 + ((init[(IDX)].is_c_symbol == FALSE || (is_underscoring () == 1)) ? 0 : 1))
522f09cd
KT		 346
347/* Decorates the C visible symbol by underscore, if target requires. */
348#define U(CSTR) \
d74720d2 349 ((is_underscoring () == 0) ? CSTR : "_" CSTR)
522f09cd
KT		 350
351/* Get size of constant string for a possible underscore prefixed
352 C visible symbol. */
353#define U_SIZE(CSTR) \
d74720d2 354 (sizeof (CSTR) + (is_underscoring () == 0 ? 0 : 1))
522f09cd
KT		 355
356#define D(field,symbol,def,usc) {&pep.field,sizeof(pep.field), def, symbol,0, usc}
99ad8390
NC		 357
358static definfo init[] =
359{
360 /* imagebase must be first */
361#define IMAGEBASEOFF 0
522f09cd 362 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE, FALSE),
99ad8390 363#define DLLOFF 1
522f09cd 364 {&dll, sizeof(dll), 0, "__dll__", 0, FALSE},
99ad8390 365#define MSIMAGEBASEOFF 2
522f09cd
KT		 366 D(ImageBase, "___ImageBase", NT_EXE_IMAGE_BASE, TRUE),
367 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT, FALSE),
368 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT, FALSE),
369 D(MajorOperatingSystemVersion,"__major_os_version__", 4, FALSE),
370 D(MinorOperatingSystemVersion,"__minor_os_version__", 0, FALSE),
371 D(MajorImageVersion,"__major_image_version__", 0, FALSE),
372 D(MinorImageVersion,"__minor_image_version__", 0, FALSE),
373 D(MajorSubsystemVersion,"__major_subsystem_version__", 5, FALSE),
374 D(MinorSubsystemVersion,"__minor_subsystem_version__", 2, FALSE),
375 D(Subsystem,"__subsystem__", ${SUBSYSTEM}, FALSE),
376 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, FALSE),
377 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, FALSE),
378 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, FALSE),
379 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, FALSE),
380 D(LoaderFlags,"__loader_flags__", 0x0, FALSE),
381 D(DllCharacteristics, "__dll_characteristics__", 0x0, FALSE),
382 { NULL, 0, 0, NULL, 0, FALSE}
99ad8390
NC		 383};
384
385
386static void
387gld_${EMULATION_NAME}_list_options (FILE *file)
388{
389 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
390 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
391 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
392 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
393 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
394 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
395 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
396 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
397 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
398 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
399 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
400 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
401 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
402 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
403 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
522f09cd 404 fprintf (file, _(" --[no-]leading-underscore Set explicit symbol underscore prefix mode\n"));
99ad8390
NC		 405#ifdef DLL_SUPPORT
406 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
407 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
408 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
409 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
2927aaca 410 fprintf (file, _(" --exclude-all-symbols Exclude all symbols from automatic export\n"));
99ad8390 411 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
e1c37eb5
DK		 412 fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n"));
413 fprintf (file, _(" Exclude objects, archive members from auto\n"));
414 fprintf (file, _(" export, place into import library instead.\n"));
99ad8390
NC		 415 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
416 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
417 fprintf (file, _(" --out-implib <file> Generate import library\n"));
418 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
419 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n"));
420 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
421 create __imp_<SYMBOL> as well.\n"));
422 fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\
423 unless user specifies one\n"));
424 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));
425 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\
426 an importlib, use <string><basename>.dll\n\
427 in preference to lib<basename>.dll \n"));
c85f715a 428 fprintf (file, _(" --enable-auto-import Do sophisticated linking of _sym to\n\
99ad8390
NC		 429 __imp_sym for DATA references\n"));
430 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
431 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\
432 adding pseudo-relocations resolved at\n\
433 runtime.\n"));
434 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\
435 auto-imported DATA.\n"));
436 fprintf (file, _(" --enable-extra-pep-debug Enable verbose debug output when building\n\
437 or linking to DLLs (esp. auto-import)\n"));
88183869
DK		 438 fprintf (file, _(" --enable-long-section-names Use long COFF section names even in\n\
439 executable image files\n"));
440 fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\
441 in object files\n"));
2f563b51
DK		 442 fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\
443 address space layout randomization (ASLR)\n"));
444 fprintf (file, _(" --forceinteg Code integrity checks are enforced\n"));
445 fprintf (file, _(" --nxcompat Image is compatible with data execution prevention\n"));
446 fprintf (file, _(" --no-isolation Image understands isolation but do not isolate the image\n"));
447 fprintf (file, _(" --no-seh Image does not use SEH. No SE handler may\n\
448 be called in this image\n"));
d127ecce 449 fprintf (file, _(" --no-bind Do not bind this image\n"));
2f563b51 450 fprintf (file, _(" --wdmdriver Driver uses the WDM model\n"));
522f09cd 451 fprintf (file, _(" --tsaware Image is Terminal Server aware\n"));
99ad8390
NC		 452#endif
453}
454
455
456static void
0ead4f8d 457set_pep_name (char *name, bfd_vma val)
99ad8390 458{
d74720d2
KT		 459 int i;
460 is_underscoring ();
99ad8390
NC		 461 /* Find the name and set it. */
462 for (i = 0; init[i].ptr; i++)
463 {
522f09cd 464 if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0)
99ad8390
NC		 465 {
466 init[i].value = val;
467 init[i].inited = 1;
468 if (strcmp (name,"__image_base__") == 0)
522f09cd 469 set_pep_name (U ("__ImageBase"), val);
99ad8390
NC		 470 return;
471 }
472 }
473 abort ();
474}
475
decfa41e
KT		 476static void
477set_entry_point (void)
478{
479 const char *entry;
480 const char *initial_symbol_char;
d74720d2 481 int i;
decfa41e
KT		 482
483 static const struct
484 {
485 const int value;
486 const char *entry;
487 }
488 v[] =
489 {
490 { 1, "NtProcessStartup" },
491 { 2, "WinMainCRTStartup" },
492 { 3, "mainCRTStartup" },
493 { 7, "__PosixProcessStartup" },
494 { 9, "WinMainCRTStartup" },
495 {14, "mainCRTStartup" },
496 { 0, NULL }
497 };
498
499 /* Entry point name for arbitrary subsystem numbers. */
500 static const char default_entry[] = "mainCRTStartup";
501
502 if (link_info.shared || dll)
503 {
504 entry = "DllMainCRTStartup";
505 }
506 else
507 {
508 for (i = 0; v[i].entry; i++)
509 if (v[i].value == pep_subsystem)
510 break;
511
512 /* If no match, use the default. */
513 if (v[i].entry != NULL)
514 entry = v[i].entry;
515 else
516 entry = default_entry;
517 }
518
522f09cd 519 /* Now we check target's default for getting proper symbol_char. */
d74720d2 520 initial_symbol_char = (is_underscoring () != 0 ? "_" : "");
522f09cd 521
decfa41e
KT		 522 if (*initial_symbol_char != '\0')
523 {
524 char *alc_entry;
525
526 /* lang_default_entry expects its argument to be permanently
527 allocated, so we don't free this string. */
528 alc_entry = xmalloc (strlen (initial_symbol_char)
529 + strlen (entry)
530 + 1);
531 strcpy (alc_entry, initial_symbol_char);
532 strcat (alc_entry, entry);
533 entry = alc_entry;
534 }
535
536 lang_default_entry (entry);
537}
99ad8390
NC		 538
539static void
540set_pep_subsystem (void)
541{
542 const char *sver;
99ad8390
NC		 543 char *end;
544 int len;
545 int i;
99ad8390
NC		 546 unsigned long temp_subsystem;
547 static const struct
548 {
549 const char *name;
550 const int value;
99ad8390
NC		 551 }
552 v[] =
553 {
decfa41e
KT		 554 { "native", 1 },
555 { "windows", 2 },
556 { "console", 3 },
557 { "posix", 7 },
558 { "wince", 9 },
559 { "xbox", 14 },
560 { NULL, 0 }
99ad8390 561 };
99ad8390
NC		 562
563 /* Check for the presence of a version number. */
564 sver = strchr (optarg, ':');
565 if (sver == NULL)
566 len = strlen (optarg);
567 else
568 {
569 len = sver - optarg;
570 set_pep_name ("__major_subsystem_version__",
571 strtoul (sver + 1, &end, 0));
572 if (*end == '.')
573 set_pep_name ("__minor_subsystem_version__",
574 strtoul (end + 1, &end, 0));
575 if (*end != '\0')
576 einfo (_("%P: warning: bad version number in -subsystem option\n"));
577 }
578
579 /* Check for numeric subsystem. */
580 temp_subsystem = strtoul (optarg, & end, 0);
581 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
582 {
583 /* Search list for a numeric match to use its entry point. */
584 for (i = 0; v[i].name; i++)
585 if (v[i].value == (int) temp_subsystem)
586 break;
587
99ad8390 588 /* Use this subsystem. */
decfa41e 589 pep_subsystem = (int) temp_subsystem;
99ad8390
NC		 590 }
591 else
592 {
593 /* Search for subsystem by name. */
594 for (i = 0; v[i].name; i++)
595 if (strncmp (optarg, v[i].name, len) == 0
596 && v[i].name[len] == '\0')
597 break;
598
599 if (v[i].name == NULL)
600 {
601 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
602 return;
603 }
604
decfa41e 605 pep_subsystem = v[i].value;
99ad8390
NC		 606 }
607
decfa41e 608 set_pep_name ("__subsystem__", pep_subsystem);
99ad8390
NC		 609
610 return;
611}
612
613
614static void
615set_pep_value (char *name)
616{
617 char *end;
618
0ead4f8d 619 set_pep_name (name, (bfd_vma) strtoull (optarg, &end, 0));
99ad8390
NC		 620
621 if (end == optarg)
622 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
623
624 optarg = end;
625}
626
627
628static void
629set_pep_stack_heap (char *resname, char *comname)
630{
631 set_pep_value (resname);
632
633 if (*optarg == ',')
634 {
635 optarg++;
636 set_pep_value (comname);
637 }
638 else if (*optarg)
639 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
640}
641
642
643static bfd_boolean
644gld${EMULATION_NAME}_handle_option (int optc)
645{
d74720d2 646 is_underscoring ();
99ad8390
NC		 647 switch (optc)
648 {
649 default:
650 return FALSE;
651
652 case OPTION_BASE_FILE:
653 link_info.base_file = fopen (optarg, FOPEN_WB);
654 if (link_info.base_file == NULL)
e922bcab 655 einfo (_("%F%P: cannot open base file %s\n"), optarg);
99ad8390
NC		 656 break;
657
658 /* PE options. */
659 case OPTION_HEAP:
660 set_pep_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
661 break;
662 case OPTION_STACK:
663 set_pep_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
664 break;
665 case OPTION_SUBSYSTEM:
666 set_pep_subsystem ();
667 break;
668 case OPTION_MAJOR_OS_VERSION:
669 set_pep_value ("__major_os_version__");
670 break;
671 case OPTION_MINOR_OS_VERSION:
672 set_pep_value ("__minor_os_version__");
673 break;
674 case OPTION_MAJOR_SUBSYSTEM_VERSION:
675 set_pep_value ("__major_subsystem_version__");
676 break;
677 case OPTION_MINOR_SUBSYSTEM_VERSION:
678 set_pep_value ("__minor_subsystem_version__");
679 break;
680 case OPTION_MAJOR_IMAGE_VERSION:
681 set_pep_value ("__major_image_version__");
682 break;
683 case OPTION_MINOR_IMAGE_VERSION:
684 set_pep_value ("__minor_image_version__");
685 break;
686 case OPTION_FILE_ALIGNMENT:
687 set_pep_value ("__file_alignment__");
688 break;
689 case OPTION_SECTION_ALIGNMENT:
690 set_pep_value ("__section_alignment__");
691 break;
692 case OPTION_DLL:
693 set_pep_name ("__dll__", 1);
694 break;
695 case OPTION_IMAGE_BASE:
696 set_pep_value ("__image_base__");
697 break;
698 case OPTION_SUPPORT_OLD_CODE:
699 support_old_code = 1;
700 break;
ce11ba6c
KT		 701 case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
702 pep_use_nul_prefixed_import_tables = TRUE;
703 break;
522f09cd
KT		 704 case OPTION_NO_LEADING_UNDERSCORE:
705 pep_leading_underscore = 0;
706 break;
707 case OPTION_LEADING_UNDERSCORE:
708 pep_leading_underscore = 1;
709 break;
99ad8390
NC		 710#ifdef DLL_SUPPORT
711 case OPTION_OUT_DEF:
712 pep_out_def_filename = xstrdup (optarg);
713 break;
714 case OPTION_EXPORT_ALL:
715 pep_dll_export_everything = 1;
716 break;
717 case OPTION_EXCLUDE_SYMBOLS:
e1c37eb5 718 pep_dll_add_excludes (optarg, EXCLUDESYMS);
99ad8390 719 break;
2927aaca
NC		 720 case OPTION_EXCLUDE_ALL_SYMBOLS:
721 pep_dll_exclude_all_symbols = 1;
722 break;
99ad8390 723 case OPTION_EXCLUDE_LIBS:
e1c37eb5
DK		 724 pep_dll_add_excludes (optarg, EXCLUDELIBS);
725 break;
726 case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
727 pep_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
99ad8390
NC		 728 break;
729 case OPTION_KILL_ATS:
730 pep_dll_kill_ats = 1;
731 break;
732 case OPTION_STDCALL_ALIASES:
733 pep_dll_stdcall_aliases = 1;
734 break;
735 case OPTION_ENABLE_STDCALL_FIXUP:
736 pep_enable_stdcall_fixup = 1;
737 break;
738 case OPTION_DISABLE_STDCALL_FIXUP:
739 pep_enable_stdcall_fixup = 0;
740 break;
741 case OPTION_IMPLIB_FILENAME:
742 pep_implib_filename = xstrdup (optarg);
743 break;
744 case OPTION_WARN_DUPLICATE_EXPORTS:
745 pep_dll_warn_dup_exports = 1;
746 break;
747 case OPTION_IMP_COMPAT:
748 pep_dll_compat_implib = 1;
749 break;
750 case OPTION_ENABLE_AUTO_IMAGE_BASE:
751 pep_enable_auto_image_base = 1;
752 break;
753 case OPTION_DISABLE_AUTO_IMAGE_BASE:
754 pep_enable_auto_image_base = 0;
755 break;
756 case OPTION_DLL_SEARCH_PREFIX:
757 pep_dll_search_prefix = xstrdup (optarg);
758 break;
759 case OPTION_NO_DEFAULT_EXCLUDES:
760 pep_dll_do_default_excludes = 0;
761 break;
762 case OPTION_DLL_ENABLE_AUTO_IMPORT:
763 link_info.pei386_auto_import = 1;
764 break;
765 case OPTION_DLL_DISABLE_AUTO_IMPORT:
766 link_info.pei386_auto_import = 0;
767 break;
768 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
6cb442d3 769 link_info.pei386_runtime_pseudo_reloc = 2;
99ad8390
NC		 770 break;
771 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
772 link_info.pei386_runtime_pseudo_reloc = 0;
773 break;
6cb442d3
KT		 774 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
775 link_info.pei386_runtime_pseudo_reloc = 2;
776 break;
99ad8390
NC		 777 case OPTION_ENABLE_EXTRA_PE_DEBUG:
778 pep_dll_extra_pe_debug = 1;
779 break;
780#endif
88183869
DK		 781 case OPTION_ENABLE_LONG_SECTION_NAMES:
782 pep_use_coff_long_section_names = 1;
783 break;
784 case OPTION_DISABLE_LONG_SECTION_NAMES:
785 pep_use_coff_long_section_names = 0;
786 break;
2f563b51
DK		 787 /* Get DLLCharacteristics bits */
788 case OPTION_DYNAMIC_BASE:
789 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
790 break;
791 case OPTION_FORCE_INTEGRITY:
792 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY;
793 break;
794 case OPTION_NX_COMPAT:
795 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
796 break;
797 case OPTION_NO_ISOLATION:
798 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
799 break;
800 case OPTION_NO_SEH:
801 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH;
802 break;
803 case OPTION_NO_BIND:
804 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND;
805 break;
806 case OPTION_WDM_DRIVER:
807 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER;
808 break;
809 case OPTION_TERMINAL_SERVER_AWARE:
810 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
811 break;
99ad8390 812 }
2f563b51
DK		 813
814 /* Set DLLCharacteristics bits */
815 set_pep_name ("__dll_characteristics__", pe_dll_characteristics);
e4492aa0 816
99ad8390
NC		 817 return TRUE;
818}
819\f
820
821#ifdef DLL_SUPPORT
822static unsigned long
823strhash (const char *str)
824{
825 const unsigned char *s;
826 unsigned long hash;
827 unsigned int c;
828 unsigned int len;
829
830 hash = 0;
831 len = 0;
832 s = (const unsigned char *) str;
833 while ((c = *s++) != '\0')
834 {
835 hash += c + (c << 17);
836 hash ^= hash >> 2;
837 ++len;
838 }
839 hash += len + (len << 17);
840 hash ^= hash >> 2;
841
842 return hash;
843}
844
845/* Use the output file to create a image base for relocatable DLLs. */
846
0ead4f8d 847static bfd_vma
99ad8390
NC		 848compute_dll_image_base (const char *ofile)
849{
0ead4f8d 850 bfd_vma hash = (bfd_vma) strhash (ofile);
a07ee50e 851 return NT_DLL_AUTO_IMAGE_BASE + ((hash << 16) & NT_DLL_AUTO_IMAGE_MASK);
99ad8390
NC		 852}
853#endif
854
855/* Assign values to the special symbols before the linker script is
856 read. */
857
858static void
859gld_${EMULATION_NAME}_set_symbols (void)
860{
861 /* Run through and invent symbols for all the
862 names and insert the defaults. */
d74720d2 863 int j;
b804e4af 864
d74720d2 865 is_underscoring ();
99ad8390
NC		 866
867 if (!init[IMAGEBASEOFF].inited)
868 {
869 if (link_info.relocatable)
870 init[IMAGEBASEOFF].value = 0;
871 else if (init[DLLOFF].value || (link_info.shared && !link_info.pie))
d127ecce 872 {
99ad8390 873#ifdef DLL_SUPPORT
d127ecce
AM		 874 init[IMAGEBASEOFF].value = (pep_enable_auto_image_base
875 ? compute_dll_image_base (output_filename)
876 : NT_DLL_IMAGE_BASE);
99ad8390 877#else
d127ecce 878 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
99ad8390 879#endif
d127ecce 880 }
99ad8390
NC		 881 else
882 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
d127ecce 883 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
99ad8390
NC		 884 }
885
886 /* Don't do any symbol assignments if this is a relocatable link. */
887 if (link_info.relocatable)
888 return;
889
890 /* Glue the assignments into the abs section. */
bde18da4 891 push_stat_ptr (&abs_output_section->children);
99ad8390
NC		 892
893 for (j = 0; init[j].ptr; j++)
894 {
0ead4f8d 895 bfd_vma val = init[j].value;
99ad8390 896 lang_assignment_statement_type *rv;
522f09cd 897
2e57b2af 898 rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j),
eb8476a6 899 exp_intop (val), FALSE));
99ad8390 900 if (init[j].size == sizeof (short))
0ead4f8d 901 *(short *) init[j].ptr = (short) val;
99ad8390 902 else if (init[j].size == sizeof (int))
0ead4f8d 903 *(int *) init[j].ptr = (int) val;
99ad8390 904 else if (init[j].size == sizeof (long))
0ead4f8d 905 *(long *) init[j].ptr = (long) val;
99ad8390
NC		 906 /* This might be a long long or other special type. */
907 else if (init[j].size == sizeof (bfd_vma))
908 *(bfd_vma *) init[j].ptr = val;
909 else abort ();
910 if (j == IMAGEBASEOFF)
911 image_base_statement = rv;
912 }
913 /* Restore the pointer. */
bde18da4 914 pop_stat_ptr ();
99ad8390
NC		 915
916 if (pep.FileAlignment > pep.SectionAlignment)
917 {
918 einfo (_("%P: warning, file alignment > section alignment.\n"));
919 }
920}
921
922/* This is called after the linker script and the command line options
923 have been read. */
924
925static void
926gld_${EMULATION_NAME}_after_parse (void)
927{
8b747e1a
DK		 928 /* PR ld/6744: Warn the user if they have used an ELF-only
929 option hoping it will work on PE+. */
930 if (link_info.export_dynamic)
931 einfo (_("%P: warning: --export-dynamic is not supported for PE+ "
932 "targets, did you mean --export-all-symbols?\n"));
97b11f40 933
decfa41e 934 set_entry_point ();
e4492aa0 935
97b11f40 936 after_parse_default ();
99ad8390
NC		 937}
938
939/* pep-dll.c directly accesses pep_data_import_dll,
940 so it must be defined outside of #ifdef DLL_SUPPORT.
941 Note - this variable is deliberately not initialised.
942 This allows it to be treated as a common varaible, and only
943 exist in one incarnation in a multiple target enabled linker. */
944char * pep_data_import_dll;
945
946#ifdef DLL_SUPPORT
947static struct bfd_link_hash_entry *pep_undef_found_sym;
948
949static bfd_boolean
950pep_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
951{
952 int sl;
953 char *string = inf;
8a9eab9b 954 const char *hs = h->root.string;
99ad8390
NC		 955
956 sl = strlen (string);
957 if (h->type == bfd_link_hash_defined
8a9eab9b
KT		 958 && ((*hs == '@' && *string == '_'
959 && strncmp (hs + 1, string + 1, sl - 1) == 0)
960 || strncmp (hs, string, sl) == 0)
99ad8390
NC		 961 && h->root.string[sl] == '@')
962 {
963 pep_undef_found_sym = h;
964 return FALSE;
965 }
966 return TRUE;
967}
968
969static void
970pep_fixup_stdcalls (void)
971{
972 static int gave_warning_message = 0;
973 struct bfd_link_hash_entry *undef, *sym;
974
975 if (pep_dll_extra_pe_debug)
976 printf ("%s\n", __FUNCTION__);
977
978 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
979 if (undef->type == bfd_link_hash_undefined)
980 {
981 char* at = strchr (undef->root.string, '@');
982 int lead_at = (*undef->root.string == '@');
8a9eab9b
KT		 983 if (lead_at)
984 at = strchr (undef->root.string + 1, '@');
985 if (at || lead_at)
99ad8390
NC		 986 {
987 /* The symbol is a stdcall symbol, so let's look for a
988 cdecl symbol with the same name and resolve to that. */
8a9eab9b
KT		 989 char *cname = xstrdup (undef->root.string);
990
991 if (lead_at)
992 *cname = '_';
99ad8390 993 at = strchr (cname, '@');
8a9eab9b
KT		 994 if (at)
995 *at = 0;
99ad8390
NC		 996 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
997
998 if (sym && sym->type == bfd_link_hash_defined)
999 {
1000 undef->type = bfd_link_hash_defined;
1001 undef->u.def.value = sym->u.def.value;
1002 undef->u.def.section = sym->u.def.section;
1003
1004 if (pep_enable_stdcall_fixup == -1)
1005 {
1006 einfo (_("Warning: resolving %s by linking to %s\n"),
1007 undef->root.string, cname);
1008 if (! gave_warning_message)
1009 {
1010 gave_warning_message = 1;
1011 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1012 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1013 }
1014 }
1015 }
1016 }
1017 else
1018 {
1019 /* The symbol is a cdecl symbol, so we look for stdcall
1020 symbols - which means scanning the whole symbol table. */
1021 pep_undef_found_sym = 0;
1022 bfd_link_hash_traverse (link_info.hash, pep_undef_cdecl_match,
1023 (char *) undef->root.string);
1024 sym = pep_undef_found_sym;
1025 if (sym)
1026 {
1027 undef->type = bfd_link_hash_defined;
1028 undef->u.def.value = sym->u.def.value;
1029 undef->u.def.section = sym->u.def.section;
1030
1031 if (pep_enable_stdcall_fixup == -1)
1032 {
1033 einfo (_("Warning: resolving %s by linking to %s\n"),
1034 undef->root.string, sym->root.string);
1035 if (! gave_warning_message)
1036 {
1037 gave_warning_message = 1;
1038 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1039 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1040 }
1041 }
1042 }
1043 }
1044 }
1045}
1046
1047static int
1048make_import_fixup (arelent *rel, asection *s)
1049{
1050 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
6cb442d3
KT		 1051 char addend[8];
1052 bfd_vma _addend = 0;
1053 int suc = 0;
99ad8390
NC		 1054
1055 if (pep_dll_extra_pe_debug)
1056 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
0af1713e 1057 (unsigned long) rel->address, (long) rel->addend);
99ad8390 1058
6cb442d3
KT		 1059 memset (addend, 0, sizeof (addend));
1060 switch ((rel->howto->bitsize))
1061 {
1062 case 8:
1063 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 1);
1064 if (suc && rel->howto->pc_relative)
1065 _addend = (bfd_vma) ((bfd_signed_vma) ((char) bfd_get_8 (s->owner, addend)));
1066 else if (suc)
1067 _addend = ((bfd_vma) bfd_get_8 (s->owner, addend)) & 0xff;
1068 break;
1069 case 16:
1070 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 2);
1071 if (suc && rel->howto->pc_relative)
1072 _addend = (bfd_vma) ((bfd_signed_vma) ((short) bfd_get_16 (s->owner, addend)));
1073 else if (suc)
1074 _addend = ((bfd_vma) bfd_get_16 (s->owner, addend)) & 0xffff;
1075 break;
1076 case 32:
1077 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 4);
1078 if (suc && rel->howto->pc_relative)
1079 _addend = (bfd_vma) ((bfd_signed_vma) ((int) bfd_get_32 (s->owner, addend)));
1080 else if (suc)
1081 _addend = ((bfd_vma) bfd_get_32 (s->owner, addend)) & 0xffffffff;
1082 break;
1083 case 64:
1084 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 8);
1085 if (suc)
1086 _addend = ((bfd_vma) bfd_get_64 (s->owner, addend));
1087 break;
1088 }
1089 if (! suc)
99ad8390
NC		 1090 einfo (_("%C: Cannot get section contents - auto-import exception\n"),
1091 s->owner, s, rel->address);
1092
6cb442d3
KT		 1093 if (pep_dll_extra_pe_debug)
1094 {
1095 printf ("import of 0x%lx(0x%lx) sec_addr=0x%lx", (long) _addend, (long) rel->addend, (long) rel->address);
1096 if (rel->howto->pc_relative) printf (" pcrel");
1097 printf (" %d bit rel.\n",(int) rel->howto->bitsize);
1098 }
1099 pep_create_import_fixup (rel, s, _addend);
99ad8390
NC		 1100
1101 return 1;
1102}
1103
1104static void
1105pep_find_data_imports (void)
1106{
1107 struct bfd_link_hash_entry *undef, *sym;
1108
1109 if (link_info.pei386_auto_import == 0)
1110 return;
1111
1112 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
1113 {
1114 if (undef->type == bfd_link_hash_undefined)
1115 {
1116 /* C++ symbols are *long*. */
1117 char buf[4096];
1118
1119 if (pep_dll_extra_pe_debug)
1120 printf ("%s:%s\n", __FUNCTION__, undef->root.string);
1121
1122 sprintf (buf, "__imp_%s", undef->root.string);
1123
1124 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
1125
1126 if (sym && sym->type == bfd_link_hash_defined)
1127 {
1128 bfd *b = sym->u.def.section->owner;
1129 asymbol **symbols;
5c1d2f5f 1130 int nsyms, i;
99ad8390 1131
5c1d2f5f
AM		 1132 if (!bfd_generic_link_read_symbols (b))
1133 {
1134 einfo (_("%B%F: could not read symbols: %E\n"), b);
1135 return;
1136 }
1137
1138 symbols = bfd_get_outsymbols (b);
1139 nsyms = bfd_get_symcount (b);
99ad8390
NC		 1140
1141 for (i = 0; i < nsyms; i++)
1142 {
522f09cd 1143 if (! CONST_STRNEQ (symbols[i]->name, U ("_head_")))
99ad8390
NC		 1144 continue;
1145
1146 if (pep_dll_extra_pe_debug)
1147 printf ("->%s\n", symbols[i]->name);
1148
1149 pep_data_import_dll = (char*) (symbols[i]->name +
522f09cd 1150 U_SIZE ("_head_") - 1);
99ad8390
NC		 1151 break;
1152 }
1153
1154 pep_walk_relocs_of_symbol (&link_info, undef->root.string,
d127ecce 1155 make_import_fixup);
99ad8390
NC		 1156
1157 /* Let's differentiate it somehow from defined. */
1158 undef->type = bfd_link_hash_defweak;
1159 /* We replace original name with __imp_ prefixed, this
1160 1) may trash memory 2) leads to duplicate symbol generation.
1161 Still, IMHO it's better than having name poluted. */
1162 undef->root.string = sym->root.string;
1163 undef->u.def.value = sym->u.def.value;
1164 undef->u.def.section = sym->u.def.section;
1165 }
1166 }
1167 }
1168}
1169
1170static bfd_boolean
1171pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
1172{
80cc85a9 1173 printf ("+%s\n", h->string);
99ad8390
NC		 1174
1175 return TRUE;
1176}
1177#endif /* DLL_SUPPORT */
1178
e4492aa0 1179static void
3efd345c
DK		 1180debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
1181{
1182 int *found = (int *) obj;
1183 if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
1184 *found = 1;
1185}
99ad8390
NC		 1186
1187static void
1188gld_${EMULATION_NAME}_after_open (void)
1189{
5c3049d2
AM		 1190 after_open_default ();
1191
d74720d2 1192 is_underscoring ();
99ad8390
NC		 1193#ifdef DLL_SUPPORT
1194 if (pep_dll_extra_pe_debug)
1195 {
1196 bfd *a;
1197 struct bfd_link_hash_entry *sym;
1198
1199 printf ("%s()\n", __FUNCTION__);
1200
1201 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1202 printf ("-%s\n", sym->root.string);
1203 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1204
1205 for (a = link_info.input_bfds; a; a = a->link_next)
1206 printf ("*%s\n",a->filename);
1207 }
1208#endif
1209
1210 /* Pass the wacky PE command line options into the output bfd.
1211 FIXME: This should be done via a function, rather than by
1212 including an internal BFD header. */
1213
f13a99db
AM		 1214 if (coff_data (link_info.output_bfd) == NULL
1215 || coff_data (link_info.output_bfd)->pe == 0)
1216 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"),
1217 link_info.output_bfd);
99ad8390 1218
f13a99db
AM		 1219 pe_data (link_info.output_bfd)->pe_opthdr = pep;
1220 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1221 pe_data (link_info.output_bfd)->real_flags |= real_flags;
3efd345c
DK		 1222
1223 /* At this point we must decide whether to use long section names
1224 in the output or not. If the user hasn't explicitly specified
1225 on the command line, we leave it to the default for the format
1226 (object files yes, image files no), except if there is debug
1227 information present; GDB relies on the long section names to
1228 find it, so enable it in that case. */
1229 if (pep_use_coff_long_section_names < 0 && link_info.strip == strip_none)
1230 {
1231 /* Iterate over all sections of all input BFDs, checking
1232 for any that begin 'debug_' and are long names. */
1233 LANG_FOR_EACH_INPUT_STATEMENT (is)
1234 {
1235 int found_debug = 0;
1236 bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
1237 if (found_debug)
1238 {
1239 pep_use_coff_long_section_names = 1;
1240 break;
1241 }
1242 }
1243 }
1244
88183869 1245 pep_output_file_set_long_section_names (link_info.output_bfd);
99ad8390
NC		 1246
1247#ifdef DLL_SUPPORT
1248 if (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */
1249 pep_fixup_stdcalls ();
1250
f13a99db 1251 pep_process_import_defs (link_info.output_bfd, &link_info);
99ad8390
NC		 1252
1253 pep_find_data_imports ();
1254
8a9eab9b
KT		 1255 /* As possibly new symbols are added by imports, we rerun
1256 stdcall/fastcall fixup here. */
1257 if (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */
1258 pep_fixup_stdcalls ();
1259
99ad8390
NC		 1260#ifndef TARGET_IS_i386pep
1261 if (link_info.shared)
1262#else
1263 if (!link_info.relocatable)
1264#endif
f13a99db 1265 pep_dll_build_sections (link_info.output_bfd, &link_info);
99ad8390
NC		 1266
1267#ifndef TARGET_IS_i386pep
1268 else
f13a99db 1269 pep_exe_build_sections (link_info.output_bfd, &link_info);
99ad8390
NC		 1270#endif
1271#endif /* DLL_SUPPORT */
1272
1273 {
1274 /* This next chunk of code tries to detect the case where you have
1275 two import libraries for the same DLL (specifically,
1276 symbolically linking libm.a and libc.a in cygwin to
1277 libcygwin.a). In those cases, it's possible for function
1278 thunks from the second implib to be used but without the
1279 head/tail objects, causing an improper import table. We detect
1280 those cases and rename the "other" import libraries to match
1281 the one the head/tail come from, so that the linker will sort
1282 things nicely and produce a valid import table. */
1283
1284 LANG_FOR_EACH_INPUT_STATEMENT (is)
1285 {
1286 if (is->the_bfd->my_archive)
1287 {
1288 int idata2 = 0, reloc_count=0, is_imp = 0;
1289 asection *sec;
1290
1291 /* See if this is an import library thunk. */
1292 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1293 {
1294 if (strcmp (sec->name, ".idata\$2") == 0)
1295 idata2 = 1;
1296 if (CONST_STRNEQ (sec->name, ".idata\$"))
1297 is_imp = 1;
1298 reloc_count += sec->reloc_count;
1299 }
1300
1301 if (is_imp && !idata2 && reloc_count)
1302 {
1303 /* It is, look for the reference to head and see if it's
1304 from our own library. */
1305 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1306 {
1307 int i;
99ad8390
NC		 1308 long relsize;
1309 asymbol **symbols;
1310 arelent **relocs;
1311 int nrelocs;
1312
99ad8390
NC		 1313 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1314 if (relsize < 1)
1315 break;
1316
5c1d2f5f 1317 if (!bfd_generic_link_read_symbols (is->the_bfd))
99ad8390 1318 {
5c1d2f5f
AM		 1319 einfo (_("%B%F: could not read symbols: %E\n"),
1320 is->the_bfd);
99ad8390
NC		 1321 return;
1322 }
5c1d2f5f 1323 symbols = bfd_get_outsymbols (is->the_bfd);
99ad8390
NC		 1324
1325 relocs = xmalloc ((size_t) relsize);
1326 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1327 relocs, symbols);
1328 if (nrelocs < 0)
1329 {
1330 free (relocs);
44e36d8a 1331 einfo ("%X%P: unable to process relocs: %E\n");
99ad8390
NC		 1332 return;
1333 }
1334
1335 for (i = 0; i < nrelocs; i++)
1336 {
1337 struct bfd_symbol *s;
1338 struct bfd_link_hash_entry * blhe;
1339 char *other_bfd_filename;
1340 char *n;
1341
1342 s = (relocs[i]->sym_ptr_ptr)[0];
1343
1344 if (s->flags & BSF_LOCAL)
1345 continue;
1346
1347 /* Thunk section with reloc to another bfd. */
1348 blhe = bfd_link_hash_lookup (link_info.hash,
1349 s->name,
1350 FALSE, FALSE, TRUE);
1351
1352 if (blhe == NULL
1353 || blhe->type != bfd_link_hash_defined)
1354 continue;
1355
1356 other_bfd_filename
1357 = blhe->u.def.section->owner->my_archive
1358 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1359 : bfd_get_filename (blhe->u.def.section->owner);
1360
42627821
KT		 1361 if (filename_cmp (bfd_get_filename
1362 (is->the_bfd->my_archive),
1363 other_bfd_filename) == 0)
99ad8390
NC		 1364 continue;
1365
1366 /* Rename this implib to match the other one. */
1367 n = xmalloc (strlen (other_bfd_filename) + 1);
1368 strcpy (n, other_bfd_filename);
1369 is->the_bfd->my_archive->filename = n;
1370 }
1371
1372 free (relocs);
1373 /* Note - we do not free the symbols,
1374 they are now cached in the BFD. */
1375 }
1376 }
1377 }
1378 }
1379 }
1380
1381 {
1382 int is_ms_arch = 0;
1383 bfd *cur_arch = 0;
1384 lang_input_statement_type *is2;
1385 lang_input_statement_type *is3;
1386
1387 /* Careful - this is a shell script. Watch those dollar signs! */
1388 /* Microsoft import libraries have every member named the same,
1389 and not in the right order for us to link them correctly. We
1390 must detect these and rename the members so that they'll link
1391 correctly. There are three types of objects: the head, the
1392 thunks, and the sentinel(s). The head is easy; it's the one
1393 with idata2. We assume that the sentinels won't have relocs,
1394 and the thunks will. It's easier than checking the symbol
1395 table for external references. */
1396 LANG_FOR_EACH_INPUT_STATEMENT (is)
1397 {
1398 if (is->the_bfd->my_archive)
1399 {
1400 char *pnt;
1401 bfd *arch = is->the_bfd->my_archive;
1402
1403 if (cur_arch != arch)
1404 {
1405 cur_arch = arch;
1406 is_ms_arch = 1;
1407
1408 for (is3 = is;
1409 is3 && is3->the_bfd->my_archive == arch;
1410 is3 = (lang_input_statement_type *) is3->next)
1411 {
1412 /* A MS dynamic import library can also contain static
1413 members, so look for the first element with a .dll
1414 extension, and use that for the remainder of the
1415 comparisons. */
1416 pnt = strrchr (is3->the_bfd->filename, '.');
42627821 1417 if (pnt != NULL && filename_cmp (pnt, ".dll") == 0)
99ad8390
NC		 1418 break;
1419 }
1420
1421 if (is3 == NULL)
1422 is_ms_arch = 0;
1423 else
1424 {
1425 /* OK, found one. Now look to see if the remaining
1426 (dynamic import) members use the same name. */
1427 for (is2 = is;
1428 is2 && is2->the_bfd->my_archive == arch;
1429 is2 = (lang_input_statement_type *) is2->next)
1430 {
1431 /* Skip static members, ie anything with a .obj
1432 extension. */
1433 pnt = strrchr (is2->the_bfd->filename, '.');
42627821 1434 if (pnt != NULL && filename_cmp (pnt, ".obj") == 0)
99ad8390
NC		 1435 continue;
1436
42627821
KT		 1437 if (filename_cmp (is3->the_bfd->filename,
1438 is2->the_bfd->filename))
99ad8390
NC		 1439 {
1440 is_ms_arch = 0;
1441 break;
1442 }
1443 }
1444 }
1445 }
1446
1447 /* This fragment might have come from an .obj file in a Microsoft
1448 import, and not an actual import record. If this is the case,
1449 then leave the filename alone. */
1450 pnt = strrchr (is->the_bfd->filename, '.');
1451
42627821 1452 if (is_ms_arch && (filename_cmp (pnt, ".dll") == 0))
99ad8390
NC		 1453 {
1454 int idata2 = 0, reloc_count=0;
1455 asection *sec;
1456 char *new_name, seq;
1457
1458 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1459 {
1460 if (strcmp (sec->name, ".idata\$2") == 0)
1461 idata2 = 1;
1462 reloc_count += sec->reloc_count;
1463 }
1464
1465 if (idata2) /* .idata2 is the TOC */
1466 seq = 'a';
1467 else if (reloc_count > 0) /* thunks */
1468 seq = 'b';
1469 else /* sentinel */
1470 seq = 'c';
1471
1472 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1473 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1474 is->the_bfd->filename = new_name;
1475
1476 new_name = xmalloc (strlen (is->filename) + 3);
1477 sprintf (new_name, "%s.%c", is->filename, seq);
1478 is->filename = new_name;
1479 }
1480 }
1481 }
1482 }
1483}
1484\f
1485static void
1486gld_${EMULATION_NAME}_before_allocation (void)
1487{
d74720d2 1488 is_underscoring ();
99ad8390
NC		 1489 before_allocation_default ();
1490}
1491\f
1492#ifdef DLL_SUPPORT
1493/* This is called when an input file isn't recognized as a BFD. We
1494 check here for .DEF files and pull them in automatically. */
1495
1496static int
1497saw_option (char *option)
1498{
1499 int i;
1500
d74720d2
KT		 1501 is_underscoring ();
1502
99ad8390 1503 for (i = 0; init[i].ptr; i++)
522f09cd 1504 if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0)
99ad8390
NC		 1505 return init[i].inited;
1506 return 0;
1507}
1508#endif /* DLL_SUPPORT */
1509
1510static bfd_boolean
1511gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1512{
1513#ifdef DLL_SUPPORT
1514 const char *ext = entry->filename + strlen (entry->filename) - 4;
1515
42627821 1516 if (filename_cmp (ext, ".def") == 0 || filename_cmp (ext, ".DEF") == 0)
99ad8390
NC		 1517 {
1518 pep_def_file = def_file_parse (entry->filename, pep_def_file);
1519
1520 if (pep_def_file)
1521 {
1522 int i, buflen=0, len;
1523 char *buf;
1524
1525 for (i = 0; i < pep_def_file->num_exports; i++)
1526 {
1527 len = strlen (pep_def_file->exports[i].internal_name);
1528 if (buflen < len + 2)
1529 buflen = len + 2;
1530 }
1531
1532 buf = xmalloc (buflen);
1533
1534 for (i = 0; i < pep_def_file->num_exports; i++)
1535 {
1536 struct bfd_link_hash_entry *h;
1537
522f09cd
KT		 1538 sprintf (buf, "%s%s", U (""),
1539 pep_def_file->exports[i].internal_name);
99ad8390
NC		 1540
1541 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1542 if (h == (struct bfd_link_hash_entry *) NULL)
1543 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1544 if (h->type == bfd_link_hash_new)
1545 {
1546 h->type = bfd_link_hash_undefined;
1547 h->u.undef.abfd = NULL;
1548 bfd_link_add_undef (link_info.hash, h);
1549 }
1550 }
1551 free (buf);
1552
1553 /* def_file_print (stdout, pep_def_file); */
1554 if (pep_def_file->is_dll == 1)
1555 link_info.shared = 1;
1556
1557 if (pep_def_file->base_address != (bfd_vma)(-1))
1558 {
f13a99db
AM		 1559 pep.ImageBase
1560 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1561 = init[IMAGEBASEOFF].value
1562 = pep_def_file->base_address;
99ad8390
NC		 1563 init[IMAGEBASEOFF].inited = 1;
1564 if (image_base_statement)
eb8476a6
MR		 1565 image_base_statement->exp
1566 = exp_assign ("__image_base__", exp_intop (pep.ImageBase),
1567 FALSE);
99ad8390
NC		 1568 }
1569
1570 if (pep_def_file->stack_reserve != -1
1571 && ! saw_option ("__size_of_stack_reserve__"))
1572 {
1573 pep.SizeOfStackReserve = pep_def_file->stack_reserve;
1574 if (pep_def_file->stack_commit != -1)
1575 pep.SizeOfStackCommit = pep_def_file->stack_commit;
1576 }
1577 if (pep_def_file->heap_reserve != -1
1578 && ! saw_option ("__size_of_heap_reserve__"))
1579 {
1580 pep.SizeOfHeapReserve = pep_def_file->heap_reserve;
1581 if (pep_def_file->heap_commit != -1)
1582 pep.SizeOfHeapCommit = pep_def_file->heap_commit;
1583 }
1584 return TRUE;
1585 }
1586 }
1587#endif
1588 return FALSE;
1589}
1590
1591static bfd_boolean
1592gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1593{
d74720d2 1594 is_underscoring ();
99ad8390
NC		 1595#ifdef DLL_SUPPORT
1596#ifdef TARGET_IS_i386pep
1597 pep_dll_id_target ("pei-x86-64");
1598#endif
880383ca
NC		 1599 if (pep_bfd_is_dll (entry->the_bfd))
1600 return pep_implied_import_dll (entry->filename);
99ad8390
NC		 1601#endif
1602 return FALSE;
1603}
1604
1605static void
1606gld_${EMULATION_NAME}_finish (void)
1607{
d74720d2 1608 is_underscoring ();
99ad8390
NC		 1609 finish_default ();
1610
1611#ifdef DLL_SUPPORT
1612 if (link_info.shared
1613 || (!link_info.relocatable && pep_def_file->num_exports != 0))
1614 {
f13a99db 1615 pep_dll_fill_sections (link_info.output_bfd, &link_info);
99ad8390 1616 if (pep_implib_filename)
e1c37eb5 1617 pep_dll_generate_implib (pep_def_file, pep_implib_filename, &link_info);
99ad8390
NC		 1618 }
1619
1620 if (pep_out_def_filename)
1621 pep_dll_generate_def_file (pep_out_def_filename);
1622#endif /* DLL_SUPPORT */
1623
1624 /* I don't know where .idata gets set as code, but it shouldn't be. */
1625 {
f13a99db 1626 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
99ad8390
NC		 1627
1628 if (asec)
1629 {
1630 asec->flags &= ~SEC_CODE;
1631 asec->flags |= SEC_DATA;
1632 }
1633 }
1634}
1635
1636\f
1637/* Place an orphan section.
1638
1639 We use this to put sections in a reasonable place in the file, and
1640 to ensure that they are aligned as required.
1641
d34c1c51 1642 We handle grouped sections here as well. A section named .foo\$nn
99ad8390
NC		 1643 goes into the output section .foo. All grouped sections are sorted
1644 by name.
1645
1646 Grouped sections for the default sections are handled by the
1647 default linker script using wildcards, and are sorted by
1648 sort_sections. */
1649
c2edb4b8 1650static lang_output_section_statement_type *
8a99a385
AM		 1651gld_${EMULATION_NAME}_place_orphan (asection *s,
1652 const char *secname,
1653 int constraint)
99ad8390 1654{
bcacc0f5 1655 const char *orig_secname = secname;
99ad8390
NC		 1656 char *dollar = NULL;
1657 lang_output_section_statement_type *os;
1658 lang_statement_list_type add_child;
b5f14a6d 1659 lang_output_section_statement_type *match_by_name = NULL;
011aa75f 1660 lang_statement_union_type **pl;
99ad8390 1661
99ad8390 1662 /* Look through the script to see where to place this section. */
99ad8390 1663 if (!link_info.relocatable
d34c1c51 1664 && (dollar = strchr (secname, '\$')) != NULL)
99ad8390 1665 {
bcacc0f5 1666 size_t len = dollar - secname;
99ad8390 1667 char *newname = xmalloc (len + 1);
bcacc0f5 1668 memcpy (newname, secname, len);
99ad8390
NC		 1669 newname[len] = '\0';
1670 secname = newname;
1671 }
1672
99ad8390
NC		 1673 lang_list_init (&add_child);
1674
d127ecce
AM		 1675 os = NULL;
1676 if (constraint == 0)
1677 for (os = lang_output_section_find (secname);
1678 os != NULL;
1679 os = next_matching_output_section_statement (os, 0))
1680 {
1681 /* If we don't match an existing output section, tell
1682 lang_insert_orphan to create a new output section. */
1683 constraint = SPECIAL;
1684
1685 if (os->bfd_section != NULL
1686 && (os->bfd_section->flags == 0
1687 || ((s->flags ^ os->bfd_section->flags)
1688 & (SEC_LOAD | SEC_ALLOC)) == 0))
1689 {
1690 /* We already have an output section statement with this
1691 name, and its bfd section has compatible flags.
1692 If the section already exists but does not have any flags set,
1693 then it has been created by the linker, probably as a result of
1694 a --section-start command line switch. */
b9c361e0 1695 lang_add_section (&add_child, s, NULL, os);
d127ecce
AM		 1696 break;
1697 }
b5f14a6d
DD		 1698
1699 /* Save unused output sections in case we can match them
1700 against orphans later. */
1701 if (os->bfd_section == NULL)
1702 match_by_name = os;
d127ecce
AM		 1703 }
1704
b5f14a6d
DD		 1705 /* If we didn't match an active output section, see if we matched an
1706 unused one and use that. */
1707 if (os == NULL && match_by_name)
1708 {
b9c361e0 1709 lang_add_section (&match_by_name->children, s, NULL, match_by_name);
b5f14a6d
DD		 1710 return match_by_name;
1711 }
1712
d127ecce 1713 if (os == NULL)
99ad8390
NC		 1714 {
1715 static struct orphan_save hold[] =
1716 {
1717 { ".text",
1718 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1719 0, 0, 0, 0 },
d4874973
KT		 1720 { ".idata",
1721 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1722 0, 0, 0, 0 },
99ad8390
NC		 1723 { ".rdata",
1724 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1725 0, 0, 0, 0 },
1726 { ".data",
1727 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1728 0, 0, 0, 0 },
1729 { ".bss",
1730 SEC_ALLOC,
1731 0, 0, 0, 0 }
1732 };
1733 enum orphan_save_index
1734 {
1735 orphan_text = 0,
d4874973 1736 orphan_idata,
99ad8390
NC		 1737 orphan_rodata,
1738 orphan_data,
1739 orphan_bss
1740 };
1741 static int orphan_init_done = 0;
1742 struct orphan_save *place;
1743 lang_output_section_statement_type *after;
1744 etree_type *address;
1745
1746 if (!orphan_init_done)
1747 {
1748 struct orphan_save *ho;
1749 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1750 if (ho->name != NULL)
1751 {
1752 ho->os = lang_output_section_find (ho->name);
1753 if (ho->os != NULL && ho->os->flags == 0)
1754 ho->os->flags = ho->flags;
1755 }
1756 orphan_init_done = 1;
1757 }
1758
1759 /* Try to put the new output section in a reasonable place based
1760 on the section name and section flags. */
1761
1762 place = NULL;
1763 if ((s->flags & SEC_ALLOC) == 0)
1764 ;
1765 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
1766 place = &hold[orphan_bss];
1767 else if ((s->flags & SEC_READONLY) == 0)
1768 place = &hold[orphan_data];
1769 else if ((s->flags & SEC_CODE) == 0)
d4874973
KT		 1770 {
1771 place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata]
1772 : &hold[orphan_rodata]);
1773 }
99ad8390
NC		 1774 else
1775 place = &hold[orphan_text];
1776
1777 after = NULL;
1778 if (place != NULL)
1779 {
1780 if (place->os == NULL)
1781 place->os = lang_output_section_find (place->name);
1782 after = place->os;
1783 if (after == NULL)
1784 after = lang_output_section_find_by_flags (s, &place->os, NULL);
1785 if (after == NULL)
1786 /* *ABS* is always the first output section statement. */
1787 after = (&lang_output_section_statement.head
1788 ->output_section_statement);
1789 }
1790
4bf0cafb
DK		 1791 /* All sections in an executable must be aligned to a page boundary.
1792 In a relocatable link, just preserve the incoming alignment; the
1793 address is discarded by lang_insert_orphan in that case, anyway. */
99ad8390 1794 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
8a99a385
AM		 1795 os = lang_insert_orphan (s, secname, constraint, after, place, address,
1796 &add_child);
4bf0cafb
DK		 1797 if (link_info.relocatable)
1798 {
1799 os->section_alignment = s->alignment_power;
1800 os->bfd_section->alignment_power = s->alignment_power;
1801 }
99ad8390
NC		 1802 }
1803
011aa75f
AM		 1804 /* If the section name has a '\$', sort it with the other '\$'
1805 sections. */
1806 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next)
1807 {
1808 lang_input_section_type *ls;
1809 const char *lname;
99ad8390 1810
011aa75f
AM		 1811 if ((*pl)->header.type != lang_input_section_enum)
1812 continue;
99ad8390 1813
011aa75f 1814 ls = &(*pl)->input_section;
99ad8390 1815
011aa75f
AM		 1816 lname = bfd_get_section_name (ls->section->owner, ls->section);
1817 if (strchr (lname, '\$') != NULL
1818 && (dollar == NULL || strcmp (orig_secname, lname) < 0))
1819 break;
1820 }
99ad8390 1821
011aa75f
AM		 1822 if (add_child.head != NULL)
1823 {
1824 *add_child.tail = *pl;
1825 *pl = add_child.head;
1826 }
99ad8390 1827
c2edb4b8 1828 return os;
99ad8390
NC		 1829}
1830
1831static bfd_boolean
1832gld_${EMULATION_NAME}_open_dynamic_archive
1833 (const char *arch ATTRIBUTE_UNUSED,
1834 search_dirs_type *search,
1835 lang_input_statement_type *entry)
1836{
1837 static const struct
1838 {
1839 const char * format;
1840 bfd_boolean use_prefix;
1841 }
1842 libname_fmt [] =
1843 {
1844 /* Preferred explicit import library for dll's. */
1845 { "lib%s.dll.a", FALSE },
1846 /* Alternate explicit import library for dll's. */
1847 { "%s.dll.a", FALSE },
1848 /* "libfoo.a" could be either an import lib or a static lib.
1849 For backwards compatibility, libfoo.a needs to precede
1850 libfoo.dll and foo.dll in the search. */
1851 { "lib%s.a", FALSE },
92b93329 1852 /* The 'native' spelling of an import lib name is "foo.lib". */
99ad8390
NC		 1853 { "%s.lib", FALSE },
1854#ifdef DLL_SUPPORT
1855 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
1856 { "%s%s.dll", TRUE },
1857#endif
1858 /* Try "libfoo.dll" (default preferred dll name). */
1859 { "lib%s.dll", FALSE },
1860 /* Finally try 'native' dll name "foo.dll". */
1861 { "%s.dll", FALSE },
1862 /* Note: If adding more formats to this table, make sure to check to
1863 see if their length is longer than libname_fmt[0].format, and if
1864 so, update the call to xmalloc() below. */
1865 { NULL, FALSE }
1866 };
1867 static unsigned int format_max_len = 0;
1868 const char * filename;
1869 char * full_string;
1870 char * base_string;
1871 unsigned int i;
1872
1873
66be1055 1874 if (! entry->flags.maybe_archive)
99ad8390
NC		 1875 return FALSE;
1876
1877 filename = entry->filename;
1878
1879 if (format_max_len == 0)
1880 /* We need to allow space in the memory that we are going to allocate
1881 for the characters in the format string. Since the format array is
1882 static we only need to calculate this information once. In theory
1883 this value could also be computed statically, but this introduces
1884 the possibility for a discrepancy and hence a possible memory
1885 corruption. The lengths we compute here will be too long because
1886 they will include any formating characters (%s) in the strings, but
1887 this will not matter. */
1888 for (i = 0; libname_fmt[i].format; i++)
1889 if (format_max_len < strlen (libname_fmt[i].format))
1890 format_max_len = strlen (libname_fmt[i].format);
1891
1892 full_string = xmalloc (strlen (search->name)
1893 + strlen (filename)
1894 + format_max_len
1895#ifdef DLL_SUPPORT
1896 + (pep_dll_search_prefix
1897 ? strlen (pep_dll_search_prefix) : 0)
1898#endif
1899 /* Allow for the terminating NUL and for the path
1900 separator character that is inserted between
1901 search->name and the start of the format string. */
1902 + 2);
1903
1904 sprintf (full_string, "%s/", search->name);
1905 base_string = full_string + strlen (full_string);
1906
1907 for (i = 0; libname_fmt[i].format; i++)
1908 {
92b93329 1909#ifdef DLL_SUPPORT
99ad8390
NC		 1910 if (libname_fmt[i].use_prefix)
1911 {
1912 if (!pep_dll_search_prefix)
1913 continue;
1914 sprintf (base_string, libname_fmt[i].format, pep_dll_search_prefix, filename);
1915 }
1916 else
1917#endif
1918 sprintf (base_string, libname_fmt[i].format, filename);
1919
1920 if (ldfile_try_open_bfd (full_string, entry))
1921 break;
1922 }
1923
1924 if (!libname_fmt[i].format)
1925 {
1926 free (full_string);
1927 return FALSE;
1928 }
1929
1930 entry->filename = full_string;
1931
1932 return TRUE;
1933}
1934
1935static int
1936gld_${EMULATION_NAME}_find_potential_libraries
1937 (char *name, lang_input_statement_type *entry)
1938{
1939 return ldfile_open_file_search (name, entry, "", ".lib");
1940}
1941\f
1942static char *
1943gld_${EMULATION_NAME}_get_script (int *isfile)
1944EOF
1945# Scripts compiled in.
1946# sed commands to quote an ld script as a C string.
1947sc="-f stringify.sed"
1948
92b93329 1949fragment <<EOF
99ad8390
NC		 1950{
1951 *isfile = 0;
1952
1953 if (link_info.relocatable && config.build_constructors)
1954 return
1955EOF
1956sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1957echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
1958sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1959echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1960sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1961echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1962sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
e2a83dd0 1963if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
6ec6c79c 1964echo ' ; else if (link_info.pei386_auto_import == 1 && link_info.pei386_runtime_pseudo_reloc != 2) return' >> e${EMULATION_NAME}.c
e2a83dd0
NC		 1965sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
1966fi
99ad8390
NC		 1967echo ' ; else return' >> e${EMULATION_NAME}.c
1968sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1969echo '; }' >> e${EMULATION_NAME}.c
1970
92b93329 1971fragment <<EOF
99ad8390
NC		 1972
1973
1974struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1975{
1976 gld_${EMULATION_NAME}_before_parse,
1977 syslib_default,
1978 hll_default,
1979 gld_${EMULATION_NAME}_after_parse,
1980 gld_${EMULATION_NAME}_after_open,
1981 after_allocation_default,
1982 set_output_arch_default,
1983 ldemul_default_target,
1984 gld_${EMULATION_NAME}_before_allocation,
1985 gld_${EMULATION_NAME}_get_script,
1986 "${EMULATION_NAME}",
1987 "${OUTPUT_FORMAT}",
1988 gld_${EMULATION_NAME}_finish,
1989 NULL, /* Create output section statements. */
1990 gld_${EMULATION_NAME}_open_dynamic_archive,
1991 gld_${EMULATION_NAME}_place_orphan,
1992 gld_${EMULATION_NAME}_set_symbols,
1993 NULL, /* parse_args */
1994 gld${EMULATION_NAME}_add_options,
1995 gld${EMULATION_NAME}_handle_option,
1996 gld_${EMULATION_NAME}_unrecognized_file,
1997 gld_${EMULATION_NAME}_list_options,
1998 gld_${EMULATION_NAME}_recognized_file,
1999 gld_${EMULATION_NAME}_find_potential_libraries,
2000 NULL /* new_vers_pattern. */
2001};
2002EOF
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