Non-contiguous memory regions support: Avoid calls to abort
[deliverable/binutils-gdb.git] / ld / emultempl / pep.em
CommitLineData
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1# This shell script emits a C file. -*- C -*-
2# It does some substitutions.
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3if [ -z "$MACHINE" ]; then
4 OUTPUT_ARCH=${ARCH}
5else
6 OUTPUT_ARCH=${ARCH}:${MACHINE}
7fi
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8
9case ${target} in
10 *-*-cygwin*)
11 move_default_addr_high=1
12 ;;
13 *)
14 move_default_addr_high=0;
15 ;;
16esac
17
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18rm -f e${EMULATION_NAME}.c
19(echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
92b93329 20fragment <<EOF
b3adc24a 21/* Copyright (C) 2006-2020 Free Software Foundation, Inc.
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22 Written by Kai Tietz, OneVision Software GmbH&CoKg.
23
24 This file is part of the GNU Binutils.
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25
26 This program is free software; you can redistribute it and/or modify
27 it under the terms of the GNU General Public License as published by
f96b4a7b 28 the Free Software Foundation; either version 3 of the License, or
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29 (at your option) any later version.
30
31 This program is distributed in the hope that it will be useful,
32 but WITHOUT ANY WARRANTY; without even the implied warranty of
33 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
34 GNU General Public License for more details.
35
36 You should have received a copy of the GNU General Public License
37 along with this program; if not, write to the Free Software
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38 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
39 MA 02110-1301, USA. */
40
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41
42/* For WINDOWS_XP64 and higher */
43/* Based on pe.em, but modified for 64 bit support. */
44
45#define TARGET_IS_${EMULATION_NAME}
46
47#define COFF_IMAGE_WITH_PE
48#define COFF_WITH_PE
49#define COFF_WITH_pex64
50
99ad8390 51#include "sysdep.h"
3db64b00 52#include "bfd.h"
99ad8390 53#include "bfdlink.h"
1ff6de03 54#include "ctf-api.h"
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55#include "getopt.h"
56#include "libiberty.h"
42627821 57#include "filenames.h"
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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"
61e2488c 68#include "ldbuildid.h"
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69#include "coff/internal.h"
70
71/* FIXME: See bfd/peXXigen.c for why we include an architecture specific
72 header in generic PE code. */
73#include "coff/x86_64.h"
74#include "coff/pe.h"
75
61e2488c 76/* FIXME: These are BFD internal header files, and we should not be
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77 using it here. */
78#include "../bfd/libcoff.h"
61e2488c 79#include "../bfd/libpei.h"
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80
81#undef AOUTSZ
82#define AOUTSZ PEPAOUTSZ
83#define PEAOUTHDR PEPAOUTHDR
84
85#include "deffile.h"
86#include "pep-dll.h"
87#include "safe-ctype.h"
88
89/* Permit the emulation parameters to override the default section
90 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
91 it seem that include/coff/internal.h should not define
92 PE_DEF_SECTION_ALIGNMENT. */
93#if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
94#undef PE_DEF_SECTION_ALIGNMENT
95#define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
96#endif
97
98#ifdef TARGET_IS_i386pep
99#define DLL_SUPPORT
100#endif
101
102#if defined(TARGET_IS_i386pep) || ! defined(DLL_SUPPORT)
103#define PE_DEF_SUBSYSTEM 3
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104#undef NT_EXE_IMAGE_BASE
105#define NT_EXE_IMAGE_BASE \
106 ((bfd_vma) (${move_default_addr_high} ? 0x100400000LL \
107 : 0x400000LL))
108#undef NT_DLL_IMAGE_BASE
109#define NT_DLL_IMAGE_BASE \
110 ((bfd_vma) (${move_default_addr_high} ? 0x400000000LL \
111 : 0x10000000LL))
112#undef NT_DLL_AUTO_IMAGE_BASE
113#define NT_DLL_AUTO_IMAGE_BASE \
114 ((bfd_vma) (${move_default_addr_high} ? 0x400000000LL \
115 : 0x61300000LL))
116#undef NT_DLL_AUTO_IMAGE_MASK
117#define NT_DLL_AUTO_IMAGE_MASK \
118 ((bfd_vma) (${move_default_addr_high} ? 0x1ffff0000LL \
119 : 0x0ffc0000LL))
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120#else
121#undef NT_EXE_IMAGE_BASE
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122#define NT_EXE_IMAGE_BASE \
123 ((bfd_vma) (${move_default_addr_high} ? 0x100010000LL \
124 : 0x10000LL))
125#undef NT_DLL_IMAGE_BASE
126#define NT_DLL_IMAGE_BASE \
127 ((bfd_vma) (${move_default_addr_high} ? 0x110000000LL \
128 : 0x10000000LL))
129#undef NT_DLL_AUTO_IMAGE_BASE
130#define NT_DLL_AUTO_IMAGE_BASE \
131 ((bfd_vma) (${move_default_addr_high} ? 0x120000000LL \
132 : 0x61300000LL))
133#undef NT_DLL_AUTO_IMAGE_MASK
134#define NT_DLL_AUTO_IMAGE_MASK \
135 ((bfd_vma) (${move_default_addr_high} ? 0x0ffff0000LL \
136 : 0x0ffc0000LL))
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137#undef PE_DEF_SECTION_ALIGNMENT
138#define PE_DEF_SUBSYSTEM 2
139#undef PE_DEF_FILE_ALIGNMENT
140#define PE_DEF_FILE_ALIGNMENT 0x00000200
141#define PE_DEF_SECTION_ALIGNMENT 0x00000400
142#endif
143
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144static struct internal_extra_pe_aouthdr pep;
145static int dll;
decfa41e 146static int pep_subsystem = ${SUBSYSTEM};
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147static flagword real_flags = IMAGE_FILE_LARGE_ADDRESS_AWARE;
148static int support_old_code = 0;
149static lang_assignment_statement_type *image_base_statement = 0;
2f563b51 150static unsigned short pe_dll_characteristics = 0;
eeb14e5a 151static bfd_boolean insert_timestamp = TRUE;
61e2488c 152static const char *emit_build_id;
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153
154#ifdef DLL_SUPPORT
880383ca 155static int pep_enable_stdcall_fixup = 1; /* 0=disable 1=enable (default). */
99ad8390 156static char * pep_out_def_filename = NULL;
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157static int pep_enable_auto_image_base = 0;
158static char * pep_dll_search_prefix = NULL;
159#endif
160
161extern const char *output_filename;
162
d74720d2 163static int is_underscoring (void)
99ad8390 164{
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165 int u = 0;
166 if (pep_leading_underscore != -1)
167 return pep_leading_underscore;
168 if (!bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL))
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169 bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL);
170
171 if (u == -1)
172 abort ();
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173 pep_leading_underscore = (u != 0 ? 1 : 0);
174 return pep_leading_underscore;
175}
b804e4af 176
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177
178static void
179gld_${EMULATION_NAME}_before_parse (void)
180{
181 is_underscoring ();
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182 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
183 output_filename = "${EXECUTABLE_NAME:-a.exe}";
184#ifdef DLL_SUPPORT
66be1055 185 input_flags.dynamic = TRUE;
99ad8390 186 config.has_shared = 1;
6ec6c79c 187 link_info.pei386_auto_import = 1;
6cb442d3 188 link_info.pei386_runtime_pseudo_reloc = 2; /* Use by default version 2. */
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189#endif
190}
191\f
192/* PE format extra command line options. */
193
194/* Used for setting flags in the PE header. */
195enum options
196{
197 OPTION_BASE_FILE = 300 + 1,
198 OPTION_DLL,
199 OPTION_FILE_ALIGNMENT,
200 OPTION_IMAGE_BASE,
201 OPTION_MAJOR_IMAGE_VERSION,
202 OPTION_MAJOR_OS_VERSION,
203 OPTION_MAJOR_SUBSYSTEM_VERSION,
204 OPTION_MINOR_IMAGE_VERSION,
205 OPTION_MINOR_OS_VERSION,
206 OPTION_MINOR_SUBSYSTEM_VERSION,
207 OPTION_SECTION_ALIGNMENT,
208 OPTION_STACK,
209 OPTION_SUBSYSTEM,
210 OPTION_HEAP,
211 OPTION_SUPPORT_OLD_CODE,
212 OPTION_OUT_DEF,
213 OPTION_EXPORT_ALL,
214 OPTION_EXCLUDE_SYMBOLS,
2927aaca 215 OPTION_EXCLUDE_ALL_SYMBOLS,
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216 OPTION_KILL_ATS,
217 OPTION_STDCALL_ALIASES,
218 OPTION_ENABLE_STDCALL_FIXUP,
219 OPTION_DISABLE_STDCALL_FIXUP,
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220 OPTION_WARN_DUPLICATE_EXPORTS,
221 OPTION_IMP_COMPAT,
222 OPTION_ENABLE_AUTO_IMAGE_BASE,
223 OPTION_DISABLE_AUTO_IMAGE_BASE,
224 OPTION_DLL_SEARCH_PREFIX,
225 OPTION_NO_DEFAULT_EXCLUDES,
226 OPTION_DLL_ENABLE_AUTO_IMPORT,
227 OPTION_DLL_DISABLE_AUTO_IMPORT,
228 OPTION_ENABLE_EXTRA_PE_DEBUG,
229 OPTION_EXCLUDE_LIBS,
230 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC,
6cb442d3 231 OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC,
e1c37eb5 232 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2,
ce11ba6c 233 OPTION_EXCLUDE_MODULES_FOR_IMPLIB,
88183869 234 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES,
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235 OPTION_NO_LEADING_UNDERSCORE,
236 OPTION_LEADING_UNDERSCORE,
88183869 237 OPTION_ENABLE_LONG_SECTION_NAMES,
2f563b51 238 OPTION_DISABLE_LONG_SECTION_NAMES,
2d5c3743 239 OPTION_HIGH_ENTROPY_VA,
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240 OPTION_DYNAMIC_BASE,
241 OPTION_FORCE_INTEGRITY,
242 OPTION_NX_COMPAT,
243 OPTION_NO_ISOLATION,
244 OPTION_NO_SEH,
245 OPTION_NO_BIND,
246 OPTION_WDM_DRIVER,
0cb112f7 247 OPTION_INSERT_TIMESTAMP,
eeb14e5a 248 OPTION_NO_INSERT_TIMESTAMP,
61e2488c 249 OPTION_TERMINAL_SERVER_AWARE,
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250 OPTION_BUILD_ID,
251 OPTION_ENABLE_RELOC_SECTION
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252};
253
254static void
255gld${EMULATION_NAME}_add_options
256 (int ns ATTRIBUTE_UNUSED,
257 char **shortopts ATTRIBUTE_UNUSED,
258 int nl,
259 struct option **longopts,
260 int nrl ATTRIBUTE_UNUSED,
261 struct option **really_longopts ATTRIBUTE_UNUSED)
262{
263 static const struct option xtra_long[] =
264 {
265 /* PE options */
266 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
267 {"dll", no_argument, NULL, OPTION_DLL},
268 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
269 {"heap", required_argument, NULL, OPTION_HEAP},
270 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
271 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
272 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
273 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
274 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
275 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
276 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
277 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
278 {"stack", required_argument, NULL, OPTION_STACK},
279 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
280 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
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281 {"use-nul-prefixed-import-tables", no_argument, NULL,
282 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},
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283 {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE},
284 {"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE},
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285#ifdef DLL_SUPPORT
286 /* getopt allows abbreviations, so we do this to stop it
287 from treating -o as an abbreviation for this option. */
288 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
289 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
290 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
291 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
2927aaca 292 {"exclude-all-symbols", no_argument, NULL, OPTION_EXCLUDE_ALL_SYMBOLS},
99ad8390 293 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
e1c37eb5 294 {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB},
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295 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
296 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
297 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
298 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
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299 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
300 /* getopt() allows abbreviations, so we do this to stop it from
301 treating -c as an abbreviation for these --compat-implib. */
302 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
303 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
304 {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
305 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
306 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
307 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
308 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
309 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
310 {"enable-extra-pep-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
311 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
312 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
6cb442d3 313 {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2},
99ad8390 314#endif
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315 {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES},
316 {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES},
2d5c3743 317 {"high-entropy-va", no_argument, NULL, OPTION_HIGH_ENTROPY_VA},
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318 {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE},
319 {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY},
320 {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT},
321 {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION},
322 {"no-seh", no_argument, NULL, OPTION_NO_SEH},
323 {"no-bind", no_argument, NULL, OPTION_NO_BIND},
324 {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
d127ecce 325 {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
0cb112f7 326 {"insert-timestamp", no_argument, NULL, OPTION_INSERT_TIMESTAMP},
eeb14e5a 327 {"no-insert-timestamp", no_argument, NULL, OPTION_NO_INSERT_TIMESTAMP},
61e2488c 328 {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
dc9bd8c9 329 {"enable-reloc-section", no_argument, NULL, OPTION_ENABLE_RELOC_SECTION},
d127ecce 330 {NULL, no_argument, NULL, 0}
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331 };
332
d127ecce
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333 *longopts
334 = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
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335 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
336}
337
338/* PE/WIN32; added routines to get the subsystem type, heap and/or stack
339 parameters which may be input from the command line. */
340
341typedef struct
342{
343 void *ptr;
344 int size;
0ead4f8d 345 bfd_vma value;
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346 char *symbol;
347 int inited;
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348 /* FALSE for an assembly level symbol and TRUE for a C visible symbol.
349 C visible symbols can be prefixed by underscore dependent on target's
350 settings. */
351 bfd_boolean is_c_symbol;
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352} definfo;
353
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354#define GET_INIT_SYMBOL_NAME(IDX) \
355 (init[(IDX)].symbol \
535b785f 356 + ((!init[(IDX)].is_c_symbol || is_underscoring () == 1) ? 0 : 1))
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357
358/* Decorates the C visible symbol by underscore, if target requires. */
359#define U(CSTR) \
d74720d2 360 ((is_underscoring () == 0) ? CSTR : "_" CSTR)
522f09cd 361
61e2488c 362#define D(field,symbol,def,usc) {&pep.field, sizeof (pep.field), def, symbol, 0, usc}
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363
364static definfo init[] =
365{
366 /* imagebase must be first */
367#define IMAGEBASEOFF 0
522f09cd 368 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE, FALSE),
99ad8390 369#define DLLOFF 1
522f09cd 370 {&dll, sizeof(dll), 0, "__dll__", 0, FALSE},
99ad8390 371#define MSIMAGEBASEOFF 2
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372 D(ImageBase, "___ImageBase", NT_EXE_IMAGE_BASE, TRUE),
373 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT, FALSE),
374 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT, FALSE),
375 D(MajorOperatingSystemVersion,"__major_os_version__", 4, FALSE),
376 D(MinorOperatingSystemVersion,"__minor_os_version__", 0, FALSE),
377 D(MajorImageVersion,"__major_image_version__", 0, FALSE),
378 D(MinorImageVersion,"__minor_image_version__", 0, FALSE),
379 D(MajorSubsystemVersion,"__major_subsystem_version__", 5, FALSE),
380 D(MinorSubsystemVersion,"__minor_subsystem_version__", 2, FALSE),
381 D(Subsystem,"__subsystem__", ${SUBSYSTEM}, FALSE),
382 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, FALSE),
383 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, FALSE),
384 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, FALSE),
385 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, FALSE),
386 D(LoaderFlags,"__loader_flags__", 0x0, FALSE),
387 D(DllCharacteristics, "__dll_characteristics__", 0x0, FALSE),
388 { NULL, 0, 0, NULL, 0, FALSE}
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389};
390
391
392static void
393gld_${EMULATION_NAME}_list_options (FILE *file)
394{
395 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
396 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
397 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
398 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
399 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
400 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
401 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
402 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
403 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
404 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
405 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
406 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
407 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
408 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
409 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
522f09cd 410 fprintf (file, _(" --[no-]leading-underscore Set explicit symbol underscore prefix mode\n"));
df5f2391 411 fprintf (file, _(" --[no-]insert-timestamp Use a real timestamp rather than zero (default)\n"));
0cb112f7 412 fprintf (file, _(" This makes binaries non-deterministic\n"));
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413#ifdef DLL_SUPPORT
414 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
415 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
416 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
417 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
2927aaca 418 fprintf (file, _(" --exclude-all-symbols Exclude all symbols from automatic export\n"));
99ad8390 419 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
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420 fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n"));
421 fprintf (file, _(" Exclude objects, archive members from auto\n"));
df5f2391 422 fprintf (file, _(" export, place into import library instead\n"));
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423 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
424 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
99ad8390 425 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
df5f2391 426 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports\n"));
99ad8390 427 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
df5f2391 428 create __imp_<SYMBOL> as well\n"));
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429 fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\
430 unless user specifies one\n"));
df5f2391 431 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base (default)\n"));
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432 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\
433 an importlib, use <string><basename>.dll\n\
434 in preference to lib<basename>.dll \n"));
c85f715a 435 fprintf (file, _(" --enable-auto-import Do sophisticated linking of _sym to\n\
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436 __imp_sym for DATA references\n"));
437 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
438 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\
439 adding pseudo-relocations resolved at\n\
df5f2391 440 runtime\n"));
99ad8390 441 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\
df5f2391 442 auto-imported DATA\n"));
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443 fprintf (file, _(" --enable-extra-pep-debug Enable verbose debug output when building\n\
444 or linking to DLLs (esp. auto-import)\n"));
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445 fprintf (file, _(" --enable-long-section-names Use long COFF section names even in\n\
446 executable image files\n"));
447 fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\
448 in object files\n"));
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449 fprintf (file, _(" --high-entropy-va Image is compatible with 64-bit address space\n\
450 layout randomization (ASLR)\n"));
df5f2391
AM
451 fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\
452 address space layout randomization (ASLR)\n"));
dc9bd8c9 453 fprintf (file, _(" --enable-reloc-section Create the base relocation table\n"));
df5f2391
AM
454 fprintf (file, _(" --forceinteg Code integrity checks are enforced\n"));
455 fprintf (file, _(" --nxcompat Image is compatible with data execution prevention\n"));
456 fprintf (file, _(" --no-isolation Image understands isolation but do not isolate the image\n"));
457 fprintf (file, _(" --no-seh Image does not use SEH; no SE handler may\n\
458 be called in this image\n"));
459 fprintf (file, _(" --no-bind Do not bind this image\n"));
460 fprintf (file, _(" --wdmdriver Driver uses the WDM model\n"));
522f09cd 461 fprintf (file, _(" --tsaware Image is Terminal Server aware\n"));
61e2488c 462 fprintf (file, _(" --build-id[=STYLE] Generate build ID\n"));
99ad8390
NC
463#endif
464}
465
466
467static void
0ead4f8d 468set_pep_name (char *name, bfd_vma val)
99ad8390 469{
d74720d2
KT
470 int i;
471 is_underscoring ();
99ad8390
NC
472 /* Find the name and set it. */
473 for (i = 0; init[i].ptr; i++)
474 {
522f09cd 475 if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0)
99ad8390
NC
476 {
477 init[i].value = val;
478 init[i].inited = 1;
479 if (strcmp (name,"__image_base__") == 0)
522f09cd 480 set_pep_name (U ("__ImageBase"), val);
99ad8390
NC
481 return;
482 }
483 }
484 abort ();
485}
486
decfa41e
KT
487static void
488set_entry_point (void)
489{
490 const char *entry;
491 const char *initial_symbol_char;
d74720d2 492 int i;
decfa41e
KT
493
494 static const struct
6c19b93b
AM
495 {
496 const int value;
497 const char *entry;
498 }
decfa41e
KT
499 v[] =
500 {
501 { 1, "NtProcessStartup" },
502 { 2, "WinMainCRTStartup" },
503 { 3, "mainCRTStartup" },
504 { 7, "__PosixProcessStartup" },
505 { 9, "WinMainCRTStartup" },
506 {14, "mainCRTStartup" },
507 { 0, NULL }
508 };
509
510 /* Entry point name for arbitrary subsystem numbers. */
511 static const char default_entry[] = "mainCRTStartup";
512
0e1862bb 513 if (bfd_link_pic (&link_info) || dll)
decfa41e
KT
514 {
515 entry = "DllMainCRTStartup";
516 }
517 else
518 {
519 for (i = 0; v[i].entry; i++)
6c19b93b
AM
520 if (v[i].value == pep_subsystem)
521 break;
decfa41e
KT
522
523 /* If no match, use the default. */
524 if (v[i].entry != NULL)
6c19b93b 525 entry = v[i].entry;
decfa41e 526 else
6c19b93b 527 entry = default_entry;
decfa41e
KT
528 }
529
522f09cd 530 /* Now we check target's default for getting proper symbol_char. */
d74720d2 531 initial_symbol_char = (is_underscoring () != 0 ? "_" : "");
522f09cd 532
decfa41e
KT
533 if (*initial_symbol_char != '\0')
534 {
535 char *alc_entry;
536
537 /* lang_default_entry expects its argument to be permanently
538 allocated, so we don't free this string. */
539 alc_entry = xmalloc (strlen (initial_symbol_char)
540 + strlen (entry)
541 + 1);
542 strcpy (alc_entry, initial_symbol_char);
543 strcat (alc_entry, entry);
544 entry = alc_entry;
545 }
546
547 lang_default_entry (entry);
548}
99ad8390
NC
549
550static void
551set_pep_subsystem (void)
552{
553 const char *sver;
99ad8390
NC
554 char *end;
555 int len;
556 int i;
99ad8390
NC
557 unsigned long temp_subsystem;
558 static const struct
559 {
560 const char *name;
561 const int value;
99ad8390
NC
562 }
563 v[] =
564 {
decfa41e
KT
565 { "native", 1 },
566 { "windows", 2 },
567 { "console", 3 },
568 { "posix", 7 },
569 { "wince", 9 },
570 { "xbox", 14 },
571 { NULL, 0 }
99ad8390 572 };
99ad8390
NC
573
574 /* Check for the presence of a version number. */
575 sver = strchr (optarg, ':');
576 if (sver == NULL)
577 len = strlen (optarg);
578 else
579 {
580 len = sver - optarg;
581 set_pep_name ("__major_subsystem_version__",
582 strtoul (sver + 1, &end, 0));
583 if (*end == '.')
584 set_pep_name ("__minor_subsystem_version__",
585 strtoul (end + 1, &end, 0));
586 if (*end != '\0')
587 einfo (_("%P: warning: bad version number in -subsystem option\n"));
588 }
589
590 /* Check for numeric subsystem. */
591 temp_subsystem = strtoul (optarg, & end, 0);
592 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
593 {
594 /* Search list for a numeric match to use its entry point. */
595 for (i = 0; v[i].name; i++)
596 if (v[i].value == (int) temp_subsystem)
597 break;
598
99ad8390 599 /* Use this subsystem. */
decfa41e 600 pep_subsystem = (int) temp_subsystem;
99ad8390
NC
601 }
602 else
603 {
604 /* Search for subsystem by name. */
605 for (i = 0; v[i].name; i++)
606 if (strncmp (optarg, v[i].name, len) == 0
607 && v[i].name[len] == '\0')
608 break;
609
610 if (v[i].name == NULL)
611 {
df5f2391 612 einfo (_("%F%P: invalid subsystem type %s\n"), optarg);
99ad8390
NC
613 return;
614 }
615
decfa41e 616 pep_subsystem = v[i].value;
99ad8390
NC
617 }
618
decfa41e 619 set_pep_name ("__subsystem__", pep_subsystem);
99ad8390
NC
620
621 return;
622}
623
624
625static void
626set_pep_value (char *name)
627{
628 char *end;
629
0ead4f8d 630 set_pep_name (name, (bfd_vma) strtoull (optarg, &end, 0));
99ad8390
NC
631
632 if (end == optarg)
df5f2391 633 einfo (_("%F%P: invalid hex number for PE parameter '%s'\n"), optarg);
99ad8390
NC
634
635 optarg = end;
636}
637
638
639static void
640set_pep_stack_heap (char *resname, char *comname)
641{
642 set_pep_value (resname);
643
644 if (*optarg == ',')
645 {
646 optarg++;
647 set_pep_value (comname);
648 }
649 else if (*optarg)
df5f2391 650 einfo (_("%F%P: strange hex info for PE parameter '%s'\n"), optarg);
99ad8390
NC
651}
652
61e2488c 653#define DEFAULT_BUILD_ID_STYLE "md5"
99ad8390
NC
654
655static bfd_boolean
656gld${EMULATION_NAME}_handle_option (int optc)
657{
d74720d2 658 is_underscoring ();
99ad8390
NC
659 switch (optc)
660 {
661 default:
662 return FALSE;
663
664 case OPTION_BASE_FILE:
665 link_info.base_file = fopen (optarg, FOPEN_WB);
666 if (link_info.base_file == NULL)
e922bcab 667 einfo (_("%F%P: cannot open base file %s\n"), optarg);
99ad8390
NC
668 break;
669
670 /* PE options. */
671 case OPTION_HEAP:
672 set_pep_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
673 break;
674 case OPTION_STACK:
675 set_pep_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
676 break;
677 case OPTION_SUBSYSTEM:
678 set_pep_subsystem ();
679 break;
680 case OPTION_MAJOR_OS_VERSION:
681 set_pep_value ("__major_os_version__");
682 break;
683 case OPTION_MINOR_OS_VERSION:
684 set_pep_value ("__minor_os_version__");
685 break;
686 case OPTION_MAJOR_SUBSYSTEM_VERSION:
687 set_pep_value ("__major_subsystem_version__");
688 break;
689 case OPTION_MINOR_SUBSYSTEM_VERSION:
690 set_pep_value ("__minor_subsystem_version__");
691 break;
692 case OPTION_MAJOR_IMAGE_VERSION:
693 set_pep_value ("__major_image_version__");
694 break;
695 case OPTION_MINOR_IMAGE_VERSION:
696 set_pep_value ("__minor_image_version__");
697 break;
698 case OPTION_FILE_ALIGNMENT:
699 set_pep_value ("__file_alignment__");
700 break;
701 case OPTION_SECTION_ALIGNMENT:
702 set_pep_value ("__section_alignment__");
703 break;
704 case OPTION_DLL:
705 set_pep_name ("__dll__", 1);
706 break;
707 case OPTION_IMAGE_BASE:
708 set_pep_value ("__image_base__");
709 break;
710 case OPTION_SUPPORT_OLD_CODE:
711 support_old_code = 1;
712 break;
ce11ba6c
KT
713 case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
714 pep_use_nul_prefixed_import_tables = TRUE;
715 break;
522f09cd
KT
716 case OPTION_NO_LEADING_UNDERSCORE:
717 pep_leading_underscore = 0;
718 break;
719 case OPTION_LEADING_UNDERSCORE:
720 pep_leading_underscore = 1;
721 break;
0cb112f7
CF
722 case OPTION_INSERT_TIMESTAMP:
723 insert_timestamp = TRUE;
724 break;
eeb14e5a
LZ
725 case OPTION_NO_INSERT_TIMESTAMP:
726 insert_timestamp = FALSE;
727 break;
99ad8390
NC
728#ifdef DLL_SUPPORT
729 case OPTION_OUT_DEF:
730 pep_out_def_filename = xstrdup (optarg);
731 break;
732 case OPTION_EXPORT_ALL:
733 pep_dll_export_everything = 1;
734 break;
735 case OPTION_EXCLUDE_SYMBOLS:
e1c37eb5 736 pep_dll_add_excludes (optarg, EXCLUDESYMS);
99ad8390 737 break;
2927aaca
NC
738 case OPTION_EXCLUDE_ALL_SYMBOLS:
739 pep_dll_exclude_all_symbols = 1;
740 break;
99ad8390 741 case OPTION_EXCLUDE_LIBS:
e1c37eb5
DK
742 pep_dll_add_excludes (optarg, EXCLUDELIBS);
743 break;
744 case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
745 pep_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
99ad8390
NC
746 break;
747 case OPTION_KILL_ATS:
748 pep_dll_kill_ats = 1;
749 break;
750 case OPTION_STDCALL_ALIASES:
751 pep_dll_stdcall_aliases = 1;
752 break;
753 case OPTION_ENABLE_STDCALL_FIXUP:
754 pep_enable_stdcall_fixup = 1;
755 break;
756 case OPTION_DISABLE_STDCALL_FIXUP:
757 pep_enable_stdcall_fixup = 0;
758 break;
99ad8390
NC
759 case OPTION_WARN_DUPLICATE_EXPORTS:
760 pep_dll_warn_dup_exports = 1;
761 break;
762 case OPTION_IMP_COMPAT:
763 pep_dll_compat_implib = 1;
764 break;
765 case OPTION_ENABLE_AUTO_IMAGE_BASE:
766 pep_enable_auto_image_base = 1;
767 break;
768 case OPTION_DISABLE_AUTO_IMAGE_BASE:
769 pep_enable_auto_image_base = 0;
770 break;
771 case OPTION_DLL_SEARCH_PREFIX:
772 pep_dll_search_prefix = xstrdup (optarg);
773 break;
774 case OPTION_NO_DEFAULT_EXCLUDES:
775 pep_dll_do_default_excludes = 0;
776 break;
777 case OPTION_DLL_ENABLE_AUTO_IMPORT:
778 link_info.pei386_auto_import = 1;
779 break;
780 case OPTION_DLL_DISABLE_AUTO_IMPORT:
781 link_info.pei386_auto_import = 0;
782 break;
783 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
6cb442d3 784 link_info.pei386_runtime_pseudo_reloc = 2;
99ad8390
NC
785 break;
786 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
787 link_info.pei386_runtime_pseudo_reloc = 0;
788 break;
6cb442d3
KT
789 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
790 link_info.pei386_runtime_pseudo_reloc = 2;
791 break;
99ad8390
NC
792 case OPTION_ENABLE_EXTRA_PE_DEBUG:
793 pep_dll_extra_pe_debug = 1;
794 break;
795#endif
88183869
DK
796 case OPTION_ENABLE_LONG_SECTION_NAMES:
797 pep_use_coff_long_section_names = 1;
798 break;
799 case OPTION_DISABLE_LONG_SECTION_NAMES:
800 pep_use_coff_long_section_names = 0;
801 break;
2f563b51 802 /* Get DLLCharacteristics bits */
2d5c3743
NC
803 case OPTION_HIGH_ENTROPY_VA:
804 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA;
dc9bd8c9 805 /* fall through */
2f563b51
DK
806 case OPTION_DYNAMIC_BASE:
807 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
dc9bd8c9
HD
808 /* fall through */
809 case OPTION_ENABLE_RELOC_SECTION:
810 pep_dll_enable_reloc_section = 1;
2f563b51
DK
811 break;
812 case OPTION_FORCE_INTEGRITY:
813 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY;
814 break;
815 case OPTION_NX_COMPAT:
816 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
817 break;
818 case OPTION_NO_ISOLATION:
819 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
820 break;
821 case OPTION_NO_SEH:
822 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH;
823 break;
824 case OPTION_NO_BIND:
825 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND;
826 break;
827 case OPTION_WDM_DRIVER:
828 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER;
829 break;
830 case OPTION_TERMINAL_SERVER_AWARE:
831 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
832 break;
61e2488c
JT
833 case OPTION_BUILD_ID:
834 if (emit_build_id != NULL)
835 {
836 free ((char *) emit_build_id);
837 emit_build_id = NULL;
838 }
839 if (optarg == NULL)
840 optarg = DEFAULT_BUILD_ID_STYLE;
841 if (strcmp (optarg, "none"))
842 emit_build_id = xstrdup (optarg);
843 break;
99ad8390 844 }
2f563b51
DK
845
846 /* Set DLLCharacteristics bits */
847 set_pep_name ("__dll_characteristics__", pe_dll_characteristics);
e4492aa0 848
99ad8390
NC
849 return TRUE;
850}
851\f
852
853#ifdef DLL_SUPPORT
854static unsigned long
855strhash (const char *str)
856{
857 const unsigned char *s;
858 unsigned long hash;
859 unsigned int c;
860 unsigned int len;
861
862 hash = 0;
863 len = 0;
864 s = (const unsigned char *) str;
865 while ((c = *s++) != '\0')
866 {
867 hash += c + (c << 17);
868 hash ^= hash >> 2;
869 ++len;
870 }
871 hash += len + (len << 17);
872 hash ^= hash >> 2;
873
874 return hash;
875}
876
877/* Use the output file to create a image base for relocatable DLLs. */
878
0ead4f8d 879static bfd_vma
99ad8390
NC
880compute_dll_image_base (const char *ofile)
881{
0ead4f8d 882 bfd_vma hash = (bfd_vma) strhash (ofile);
a07ee50e 883 return NT_DLL_AUTO_IMAGE_BASE + ((hash << 16) & NT_DLL_AUTO_IMAGE_MASK);
99ad8390
NC
884}
885#endif
886
887/* Assign values to the special symbols before the linker script is
888 read. */
889
890static void
891gld_${EMULATION_NAME}_set_symbols (void)
892{
893 /* Run through and invent symbols for all the
894 names and insert the defaults. */
d74720d2 895 int j;
b804e4af 896
d74720d2 897 is_underscoring ();
99ad8390
NC
898
899 if (!init[IMAGEBASEOFF].inited)
900 {
0e1862bb 901 if (bfd_link_relocatable (&link_info))
99ad8390 902 init[IMAGEBASEOFF].value = 0;
0e1862bb 903 else if (init[DLLOFF].value || bfd_link_dll (&link_info))
d127ecce 904 {
99ad8390 905#ifdef DLL_SUPPORT
d127ecce
AM
906 init[IMAGEBASEOFF].value = (pep_enable_auto_image_base
907 ? compute_dll_image_base (output_filename)
908 : NT_DLL_IMAGE_BASE);
99ad8390 909#else
d127ecce 910 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
99ad8390 911#endif
d127ecce 912 }
99ad8390
NC
913 else
914 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
d127ecce 915 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
99ad8390
NC
916 }
917
918 /* Don't do any symbol assignments if this is a relocatable link. */
0e1862bb 919 if (bfd_link_relocatable (&link_info))
99ad8390
NC
920 return;
921
922 /* Glue the assignments into the abs section. */
bde18da4 923 push_stat_ptr (&abs_output_section->children);
99ad8390
NC
924
925 for (j = 0; init[j].ptr; j++)
926 {
0ead4f8d 927 bfd_vma val = init[j].value;
99ad8390 928 lang_assignment_statement_type *rv;
522f09cd 929
2e57b2af 930 rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j),
eb8476a6 931 exp_intop (val), FALSE));
99ad8390 932 if (init[j].size == sizeof (short))
0ead4f8d 933 *(short *) init[j].ptr = (short) val;
99ad8390 934 else if (init[j].size == sizeof (int))
0ead4f8d 935 *(int *) init[j].ptr = (int) val;
99ad8390 936 else if (init[j].size == sizeof (long))
0ead4f8d 937 *(long *) init[j].ptr = (long) val;
99ad8390
NC
938 /* This might be a long long or other special type. */
939 else if (init[j].size == sizeof (bfd_vma))
940 *(bfd_vma *) init[j].ptr = val;
941 else abort ();
942 if (j == IMAGEBASEOFF)
943 image_base_statement = rv;
944 }
945 /* Restore the pointer. */
bde18da4 946 pop_stat_ptr ();
99ad8390
NC
947
948 if (pep.FileAlignment > pep.SectionAlignment)
949 {
df5f2391 950 einfo (_("%P: warning, file alignment > section alignment\n"));
99ad8390
NC
951 }
952}
953
954/* This is called after the linker script and the command line options
955 have been read. */
956
957static void
958gld_${EMULATION_NAME}_after_parse (void)
959{
8b747e1a
DK
960 /* PR ld/6744: Warn the user if they have used an ELF-only
961 option hoping it will work on PE+. */
962 if (link_info.export_dynamic)
963 einfo (_("%P: warning: --export-dynamic is not supported for PE+ "
964 "targets, did you mean --export-all-symbols?\n"));
97b11f40 965
decfa41e 966 set_entry_point ();
e4492aa0 967
97b11f40 968 after_parse_default ();
99ad8390
NC
969}
970
99ad8390
NC
971#ifdef DLL_SUPPORT
972static struct bfd_link_hash_entry *pep_undef_found_sym;
973
974static bfd_boolean
975pep_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
976{
977 int sl;
978 char *string = inf;
8a9eab9b 979 const char *hs = h->root.string;
99ad8390
NC
980
981 sl = strlen (string);
982 if (h->type == bfd_link_hash_defined
8a9eab9b
KT
983 && ((*hs == '@' && *string == '_'
984 && strncmp (hs + 1, string + 1, sl - 1) == 0)
985 || strncmp (hs, string, sl) == 0)
99ad8390
NC
986 && h->root.string[sl] == '@')
987 {
988 pep_undef_found_sym = h;
989 return FALSE;
990 }
991 return TRUE;
992}
993
994static void
995pep_fixup_stdcalls (void)
996{
997 static int gave_warning_message = 0;
998 struct bfd_link_hash_entry *undef, *sym;
999
1000 if (pep_dll_extra_pe_debug)
1001 printf ("%s\n", __FUNCTION__);
1002
1003 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
1004 if (undef->type == bfd_link_hash_undefined)
1005 {
1006 char* at = strchr (undef->root.string, '@');
1007 int lead_at = (*undef->root.string == '@');
8a9eab9b
KT
1008 if (lead_at)
1009 at = strchr (undef->root.string + 1, '@');
1010 if (at || lead_at)
99ad8390
NC
1011 {
1012 /* The symbol is a stdcall symbol, so let's look for a
1013 cdecl symbol with the same name and resolve to that. */
8a9eab9b
KT
1014 char *cname = xstrdup (undef->root.string);
1015
1016 if (lead_at)
1017 *cname = '_';
99ad8390 1018 at = strchr (cname, '@');
8a9eab9b
KT
1019 if (at)
1020 *at = 0;
99ad8390
NC
1021 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
1022
1023 if (sym && sym->type == bfd_link_hash_defined)
1024 {
1025 undef->type = bfd_link_hash_defined;
1026 undef->u.def.value = sym->u.def.value;
1027 undef->u.def.section = sym->u.def.section;
1028
1029 if (pep_enable_stdcall_fixup == -1)
1030 {
df5f2391 1031 einfo (_("warning: resolving %s by linking to %s\n"),
99ad8390
NC
1032 undef->root.string, cname);
1033 if (! gave_warning_message)
1034 {
1035 gave_warning_message = 1;
1036 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1037 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1038 }
1039 }
1040 }
1041 }
1042 else
1043 {
1044 /* The symbol is a cdecl symbol, so we look for stdcall
1045 symbols - which means scanning the whole symbol table. */
1046 pep_undef_found_sym = 0;
1047 bfd_link_hash_traverse (link_info.hash, pep_undef_cdecl_match,
1048 (char *) undef->root.string);
1049 sym = pep_undef_found_sym;
1050 if (sym)
1051 {
1052 undef->type = bfd_link_hash_defined;
1053 undef->u.def.value = sym->u.def.value;
1054 undef->u.def.section = sym->u.def.section;
1055
1056 if (pep_enable_stdcall_fixup == -1)
1057 {
df5f2391 1058 einfo (_("warning: resolving %s by linking to %s\n"),
99ad8390
NC
1059 undef->root.string, sym->root.string);
1060 if (! gave_warning_message)
1061 {
1062 gave_warning_message = 1;
1063 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1064 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1065 }
1066 }
1067 }
1068 }
1069 }
1070}
1071
317ff008
EB
1072static void
1073make_import_fixup (arelent *rel, asection *s, char *name, const char *symname)
99ad8390
NC
1074{
1075 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
6cb442d3
KT
1076 char addend[8];
1077 bfd_vma _addend = 0;
1078 int suc = 0;
99ad8390
NC
1079
1080 if (pep_dll_extra_pe_debug)
1081 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
0af1713e 1082 (unsigned long) rel->address, (long) rel->addend);
99ad8390 1083
6cb442d3
KT
1084 memset (addend, 0, sizeof (addend));
1085 switch ((rel->howto->bitsize))
1086 {
fbea1508
AM
1087 case 8:
1088 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 1);
1089 if (suc && rel->howto->pc_relative)
1090 _addend = bfd_get_signed_8 (s->owner, addend);
1091 else if (suc)
1092 _addend = bfd_get_8 (s->owner, addend);
1093 break;
1094 case 16:
1095 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 2);
1096 if (suc && rel->howto->pc_relative)
1097 _addend = bfd_get_signed_16 (s->owner, addend);
1098 else if (suc)
1099 _addend = bfd_get_16 (s->owner, addend);
1100 break;
1101 case 32:
1102 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 4);
1103 if (suc && rel->howto->pc_relative)
1104 _addend = bfd_get_signed_32 (s->owner, addend);
1105 else if (suc)
1106 _addend = bfd_get_32 (s->owner, addend);
1107 break;
1108 case 64:
1109 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 8);
1110 if (suc)
1111 _addend = bfd_get_64 (s->owner, addend);
1112 break;
6cb442d3
KT
1113 }
1114 if (! suc)
df5f2391 1115 einfo (_("%P: %C: cannot get section contents - auto-import exception\n"),
99ad8390
NC
1116 s->owner, s, rel->address);
1117
6cb442d3
KT
1118 if (pep_dll_extra_pe_debug)
1119 {
fbea1508
AM
1120 printf ("import of 0x%lx(0x%lx) sec_addr=0x%lx",
1121 (long) _addend, (long) rel->addend, (long) rel->address);
1122 if (rel->howto->pc_relative)
1123 printf (" pcrel");
1124 printf (" %d bit rel.\n", (int) rel->howto->bitsize);
1125 }
99ad8390 1126
317ff008 1127 pep_create_import_fixup (rel, s, _addend, name, symname);
99ad8390
NC
1128}
1129
1130static bfd_boolean
1131pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
1132{
80cc85a9 1133 printf ("+%s\n", h->string);
99ad8390
NC
1134
1135 return TRUE;
1136}
1137#endif /* DLL_SUPPORT */
1138
e4492aa0 1139static void
3efd345c
DK
1140debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
1141{
1142 int *found = (int *) obj;
61e2488c 1143
3efd345c
DK
1144 if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
1145 *found = 1;
1146}
99ad8390 1147
61e2488c
JT
1148static bfd_boolean
1149pecoff_checksum_contents (bfd *abfd,
1150 void (*process) (const void *, size_t, void *),
1151 void *arg)
1152{
1153 file_ptr filepos = (file_ptr) 0;
1154
1155 while (1)
1156 {
1157 unsigned char b;
1158 int status;
1159
1160 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
1161 return 0;
1162
1163 status = bfd_bread (&b, (bfd_size_type) 1, abfd);
1164 if (status < 1)
6c19b93b
AM
1165 {
1166 break;
1167 }
61e2488c
JT
1168
1169 (*process) (&b, 1, arg);
1170 filepos += 1;
1171 }
1172
1173 return TRUE;
1174}
1175
1176static bfd_boolean
1177write_build_id (bfd *abfd)
1178{
1179 struct pe_tdata *t = pe_data (abfd);
1180 asection *asec;
1181 struct bfd_link_order *link_order = NULL;
1182 unsigned char *contents;
1183 bfd_size_type size;
1184 bfd_size_type build_id_size;
1185 unsigned char *build_id;
1186
74fffc39 1187 /* Find the section the .buildid output section has been merged info. */
61e2488c
JT
1188 for (asec = abfd->sections; asec != NULL; asec = asec->next)
1189 {
1190 struct bfd_link_order *l = NULL;
1191 for (l = asec->map_head.link_order; l != NULL; l = l->next)
6c19b93b
AM
1192 {
1193 if (l->type == bfd_indirect_link_order)
1194 {
1195 if (l->u.indirect.section == t->build_id.sec)
1196 {
1197 link_order = l;
1198 break;
1199 }
1200 }
1201 }
61e2488c
JT
1202
1203 if (link_order)
6c19b93b 1204 break;
61e2488c
JT
1205 }
1206
1207 if (!link_order)
1208 {
74fffc39 1209 einfo (_("%P: warning: .buildid section discarded,"
df5f2391 1210 " --build-id ignored\n"));
61e2488c
JT
1211 return TRUE;
1212 }
1213
1214 if (t->build_id.sec->contents == NULL)
1215 t->build_id.sec->contents = (unsigned char *) xmalloc (t->build_id.sec->size);
1216 contents = t->build_id.sec->contents;
1217 size = t->build_id.sec->size;
1218
1219 build_id_size = compute_build_id_size (t->build_id.style);
1220 build_id = xmalloc (build_id_size);
1221 generate_build_id (abfd, t->build_id.style, pecoff_checksum_contents, build_id, build_id_size);
1222
1223 bfd_vma ib = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase;
1224
1225 /* Construct a debug directory entry which points to an immediately following CodeView record. */
1226 struct internal_IMAGE_DEBUG_DIRECTORY idd;
1227 idd.Characteristics = 0;
1228 idd.TimeDateStamp = 0;
1229 idd.MajorVersion = 0;
1230 idd.MinorVersion = 0;
1231 idd.Type = PE_IMAGE_DEBUG_TYPE_CODEVIEW;
1232 idd.SizeOfData = sizeof (CV_INFO_PDB70) + 1;
1233 idd.AddressOfRawData = asec->vma - ib + link_order->offset
1234 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1235 idd.PointerToRawData = asec->filepos + link_order->offset
1236 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1237
1238 struct external_IMAGE_DEBUG_DIRECTORY *ext = (struct external_IMAGE_DEBUG_DIRECTORY *)contents;
1239 _bfd_XXi_swap_debugdir_out (abfd, &idd, ext);
1240
1241 /* Write the debug directory enttry */
1242 if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0)
1243 return 0;
1244
b6518b38 1245 if (bfd_bwrite (contents, size, abfd) != size)
61e2488c
JT
1246 return 0;
1247
1248 /* Construct the CodeView record. */
1249 CODEVIEW_INFO cvinfo;
1250 cvinfo.CVSignature = CVINFO_PDB70_CVSIGNATURE;
1251 cvinfo.Age = 1;
1252
1253 /* Zero pad or truncate the generated build_id to fit in the CodeView record. */
1254 memset (&(cvinfo.Signature), 0, CV_INFO_SIGNATURE_LENGTH);
1255 memcpy (&(cvinfo.Signature), build_id, (build_id_size > CV_INFO_SIGNATURE_LENGTH)
1256 ? CV_INFO_SIGNATURE_LENGTH : build_id_size);
1257
1258 free (build_id);
1259
1260 /* Write the codeview record. */
1261 if (_bfd_XXi_write_codeview_record (abfd, idd.PointerToRawData, &cvinfo) == 0)
1262 return 0;
1263
1264 /* Record the location of the debug directory in the data directory. */
1265 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress
1266 = asec->vma - ib + link_order->offset;
1267 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size
1268 = sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1269
1270 return TRUE;
1271}
1272
74fffc39 1273/* Make .buildid section, and set up coff_tdata->build_id. */
61e2488c
JT
1274static bfd_boolean
1275setup_build_id (bfd *ibfd)
1276{
1277 asection *s;
1278 flagword flags;
1279
1280 if (!validate_build_id_style (emit_build_id))
1281 {
df5f2391 1282 einfo (_("%P: warning: unrecognized --build-id style ignored\n"));
61e2488c
JT
1283 return FALSE;
1284 }
1285
1286 flags = (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
1287 | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
74fffc39 1288 s = bfd_make_section_anyway_with_flags (ibfd, ".buildid", flags);
61e2488c
JT
1289 if (s != NULL)
1290 {
1291 struct pe_tdata *t = pe_data (link_info.output_bfd);
1292 t->build_id.after_write_object_contents = &write_build_id;
1293 t->build_id.style = emit_build_id;
1294 t->build_id.sec = s;
1295
1296 /* Section is a fixed size:
1297 One IMAGE_DEBUG_DIRECTORY entry, of type IMAGE_DEBUG_TYPE_CODEVIEW,
1298 pointing at a CV_INFO_PDB70 record containing the build-id, with a
1299 null byte for PdbFileName. */
1300 s->size = sizeof (struct external_IMAGE_DEBUG_DIRECTORY)
1301 + sizeof (CV_INFO_PDB70) + 1;
1302
1303 return TRUE;
1304 }
1305
df5f2391
AM
1306 einfo (_("%P: warning: cannot create .buildid section,"
1307 " --build-id ignored\n"));
61e2488c
JT
1308 return FALSE;
1309}
1310
99ad8390
NC
1311static void
1312gld_${EMULATION_NAME}_after_open (void)
1313{
5c3049d2
AM
1314 after_open_default ();
1315
d74720d2 1316 is_underscoring ();
99ad8390
NC
1317#ifdef DLL_SUPPORT
1318 if (pep_dll_extra_pe_debug)
1319 {
1320 bfd *a;
1321 struct bfd_link_hash_entry *sym;
1322
1323 printf ("%s()\n", __FUNCTION__);
1324
1325 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1326 printf ("-%s\n", sym->root.string);
1327 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1328
c72f2fb2 1329 for (a = link_info.input_bfds; a; a = a->link.next)
99ad8390
NC
1330 printf ("*%s\n",a->filename);
1331 }
1332#endif
1333
61e2488c
JT
1334 if (emit_build_id != NULL)
1335 {
1336 bfd *abfd;
1337
1338 /* Find a COFF input. */
1339 for (abfd = link_info.input_bfds;
c72f2fb2 1340 abfd != (bfd *) NULL; abfd = abfd->link.next)
61e2488c
JT
1341 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
1342 break;
1343
1344 /* If there are no COFF input files do not try to
1345 add a build-id section. */
1346 if (abfd == NULL
1347 || !setup_build_id (abfd))
1348 {
1349 free ((char *) emit_build_id);
1350 emit_build_id = NULL;
1351 }
1352 }
1353
99ad8390
NC
1354 /* Pass the wacky PE command line options into the output bfd.
1355 FIXME: This should be done via a function, rather than by
1356 including an internal BFD header. */
1357
eabf307f
AM
1358 if (bfd_get_flavour (link_info.output_bfd) != bfd_target_coff_flavour
1359 || coff_data (link_info.output_bfd) == NULL
f13a99db 1360 || coff_data (link_info.output_bfd)->pe == 0)
df5f2391 1361 einfo (_("%F%P: cannot perform PE operations on non PE output file '%pB'\n"),
f13a99db 1362 link_info.output_bfd);
99ad8390 1363
f13a99db
AM
1364 pe_data (link_info.output_bfd)->pe_opthdr = pep;
1365 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1366 pe_data (link_info.output_bfd)->real_flags |= real_flags;
0cb112f7 1367 pe_data (link_info.output_bfd)->insert_timestamp = insert_timestamp;
3efd345c
DK
1368
1369 /* At this point we must decide whether to use long section names
1370 in the output or not. If the user hasn't explicitly specified
1371 on the command line, we leave it to the default for the format
1372 (object files yes, image files no), except if there is debug
1373 information present; GDB relies on the long section names to
1374 find it, so enable it in that case. */
1375 if (pep_use_coff_long_section_names < 0 && link_info.strip == strip_none)
1376 {
0e1862bb 1377 if (bfd_link_relocatable (&link_info))
61e2488c
JT
1378 pep_use_coff_long_section_names = 1;
1379 else
3efd345c 1380 {
61e2488c
JT
1381 /* Iterate over all sections of all input BFDs, checking
1382 for any that begin 'debug_' and are long names. */
1383 LANG_FOR_EACH_INPUT_STATEMENT (is)
1384 {
1385 int found_debug = 0;
1386
1387 bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
1388 if (found_debug)
1389 {
1390 pep_use_coff_long_section_names = 1;
1391 break;
1392 }
1393 }
3efd345c
DK
1394 }
1395 }
1396
88183869 1397 pep_output_file_set_long_section_names (link_info.output_bfd);
99ad8390
NC
1398
1399#ifdef DLL_SUPPORT
f13a99db 1400 pep_process_import_defs (link_info.output_bfd, &link_info);
99ad8390 1401
317ff008
EB
1402 if (link_info.pei386_auto_import) /* -1=warn or 1=enable */
1403 pep_find_data_imports (U ("_head_"), make_import_fixup);
99ad8390 1404
317ff008
EB
1405 /* The implementation of the feature is rather dumb and would cause the
1406 compilation time to go through the roof if there are many undefined
1407 symbols in the link, so it needs to be run after auto-import. */
1408 if (pep_enable_stdcall_fixup) /* -1=warn or 1=enable */
8a9eab9b
KT
1409 pep_fixup_stdcalls ();
1410
99ad8390 1411#ifndef TARGET_IS_i386pep
0e1862bb 1412 if (bfd_link_pic (&link_info))
99ad8390 1413#else
0e1862bb 1414 if (!bfd_link_relocatable (&link_info))
99ad8390 1415#endif
f13a99db 1416 pep_dll_build_sections (link_info.output_bfd, &link_info);
99ad8390
NC
1417
1418#ifndef TARGET_IS_i386pep
1419 else
f13a99db 1420 pep_exe_build_sections (link_info.output_bfd, &link_info);
99ad8390
NC
1421#endif
1422#endif /* DLL_SUPPORT */
1423
1424 {
1425 /* This next chunk of code tries to detect the case where you have
1426 two import libraries for the same DLL (specifically,
1427 symbolically linking libm.a and libc.a in cygwin to
1428 libcygwin.a). In those cases, it's possible for function
1429 thunks from the second implib to be used but without the
1430 head/tail objects, causing an improper import table. We detect
1431 those cases and rename the "other" import libraries to match
1432 the one the head/tail come from, so that the linker will sort
1433 things nicely and produce a valid import table. */
1434
1435 LANG_FOR_EACH_INPUT_STATEMENT (is)
1436 {
1437 if (is->the_bfd->my_archive)
1438 {
1439 int idata2 = 0, reloc_count=0, is_imp = 0;
1440 asection *sec;
1441
1442 /* See if this is an import library thunk. */
1443 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1444 {
1445 if (strcmp (sec->name, ".idata\$2") == 0)
1446 idata2 = 1;
1447 if (CONST_STRNEQ (sec->name, ".idata\$"))
1448 is_imp = 1;
1449 reloc_count += sec->reloc_count;
1450 }
1451
1452 if (is_imp && !idata2 && reloc_count)
1453 {
1454 /* It is, look for the reference to head and see if it's
1455 from our own library. */
1456 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1457 {
1458 int i;
99ad8390
NC
1459 long relsize;
1460 asymbol **symbols;
1461 arelent **relocs;
1462 int nrelocs;
1463
99ad8390
NC
1464 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1465 if (relsize < 1)
1466 break;
1467
5c1d2f5f 1468 if (!bfd_generic_link_read_symbols (is->the_bfd))
99ad8390 1469 {
df5f2391 1470 einfo (_("%F%P: %pB: could not read symbols: %E\n"),
5c1d2f5f 1471 is->the_bfd);
99ad8390
NC
1472 return;
1473 }
5c1d2f5f 1474 symbols = bfd_get_outsymbols (is->the_bfd);
99ad8390
NC
1475
1476 relocs = xmalloc ((size_t) relsize);
1477 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1478 relocs, symbols);
1479 if (nrelocs < 0)
1480 {
1481 free (relocs);
d003af55 1482 einfo (_("%X%P: unable to process relocs: %E\n"));
99ad8390
NC
1483 return;
1484 }
1485
1486 for (i = 0; i < nrelocs; i++)
1487 {
1488 struct bfd_symbol *s;
1489 struct bfd_link_hash_entry * blhe;
b16c44de 1490 const char *other_bfd_filename;
99ad8390
NC
1491 char *n;
1492
1493 s = (relocs[i]->sym_ptr_ptr)[0];
1494
1495 if (s->flags & BSF_LOCAL)
1496 continue;
1497
1498 /* Thunk section with reloc to another bfd. */
1499 blhe = bfd_link_hash_lookup (link_info.hash,
1500 s->name,
1501 FALSE, FALSE, TRUE);
1502
1503 if (blhe == NULL
1504 || blhe->type != bfd_link_hash_defined)
1505 continue;
1506
1507 other_bfd_filename
1508 = blhe->u.def.section->owner->my_archive
1509 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1510 : bfd_get_filename (blhe->u.def.section->owner);
1511
42627821
KT
1512 if (filename_cmp (bfd_get_filename
1513 (is->the_bfd->my_archive),
1514 other_bfd_filename) == 0)
99ad8390
NC
1515 continue;
1516
1517 /* Rename this implib to match the other one. */
1518 n = xmalloc (strlen (other_bfd_filename) + 1);
1519 strcpy (n, other_bfd_filename);
90d92a63 1520 bfd_set_filename (is->the_bfd->my_archive, n);
99ad8390
NC
1521 }
1522
1523 free (relocs);
1524 /* Note - we do not free the symbols,
1525 they are now cached in the BFD. */
1526 }
1527 }
1528 }
1529 }
1530 }
1531
1532 {
1533 int is_ms_arch = 0;
1534 bfd *cur_arch = 0;
1535 lang_input_statement_type *is2;
1536 lang_input_statement_type *is3;
1537
1538 /* Careful - this is a shell script. Watch those dollar signs! */
1539 /* Microsoft import libraries have every member named the same,
1540 and not in the right order for us to link them correctly. We
1541 must detect these and rename the members so that they'll link
1542 correctly. There are three types of objects: the head, the
1543 thunks, and the sentinel(s). The head is easy; it's the one
1544 with idata2. We assume that the sentinels won't have relocs,
1545 and the thunks will. It's easier than checking the symbol
1546 table for external references. */
1547 LANG_FOR_EACH_INPUT_STATEMENT (is)
1548 {
1549 if (is->the_bfd->my_archive)
1550 {
1551 char *pnt;
1552 bfd *arch = is->the_bfd->my_archive;
1553
1554 if (cur_arch != arch)
1555 {
1556 cur_arch = arch;
1557 is_ms_arch = 1;
1558
1559 for (is3 = is;
1560 is3 && is3->the_bfd->my_archive == arch;
1561 is3 = (lang_input_statement_type *) is3->next)
1562 {
1563 /* A MS dynamic import library can also contain static
1564 members, so look for the first element with a .dll
1565 extension, and use that for the remainder of the
1566 comparisons. */
1567 pnt = strrchr (is3->the_bfd->filename, '.');
42627821 1568 if (pnt != NULL && filename_cmp (pnt, ".dll") == 0)
99ad8390
NC
1569 break;
1570 }
1571
1572 if (is3 == NULL)
1573 is_ms_arch = 0;
1574 else
1575 {
1576 /* OK, found one. Now look to see if the remaining
1577 (dynamic import) members use the same name. */
1578 for (is2 = is;
1579 is2 && is2->the_bfd->my_archive == arch;
1580 is2 = (lang_input_statement_type *) is2->next)
1581 {
1582 /* Skip static members, ie anything with a .obj
1583 extension. */
1584 pnt = strrchr (is2->the_bfd->filename, '.');
42627821 1585 if (pnt != NULL && filename_cmp (pnt, ".obj") == 0)
99ad8390
NC
1586 continue;
1587
42627821
KT
1588 if (filename_cmp (is3->the_bfd->filename,
1589 is2->the_bfd->filename))
99ad8390
NC
1590 {
1591 is_ms_arch = 0;
1592 break;
1593 }
1594 }
1595 }
1596 }
1597
1598 /* This fragment might have come from an .obj file in a Microsoft
1599 import, and not an actual import record. If this is the case,
1600 then leave the filename alone. */
1601 pnt = strrchr (is->the_bfd->filename, '.');
1602
42627821 1603 if (is_ms_arch && (filename_cmp (pnt, ".dll") == 0))
99ad8390
NC
1604 {
1605 int idata2 = 0, reloc_count=0;
1606 asection *sec;
1607 char *new_name, seq;
1608
1609 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1610 {
1611 if (strcmp (sec->name, ".idata\$2") == 0)
1612 idata2 = 1;
1613 reloc_count += sec->reloc_count;
1614 }
1615
1616 if (idata2) /* .idata2 is the TOC */
1617 seq = 'a';
1618 else if (reloc_count > 0) /* thunks */
1619 seq = 'b';
1620 else /* sentinel */
1621 seq = 'c';
1622
1623 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1624 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
90d92a63 1625 bfd_set_filename (is->the_bfd, new_name);
99ad8390
NC
1626
1627 new_name = xmalloc (strlen (is->filename) + 3);
1628 sprintf (new_name, "%s.%c", is->filename, seq);
1629 is->filename = new_name;
1630 }
1631 }
1632 }
1633 }
1634}
1635\f
1636static void
1637gld_${EMULATION_NAME}_before_allocation (void)
1638{
d74720d2 1639 is_underscoring ();
99ad8390
NC
1640 before_allocation_default ();
1641}
1642\f
1643#ifdef DLL_SUPPORT
1644/* This is called when an input file isn't recognized as a BFD. We
1645 check here for .DEF files and pull them in automatically. */
1646
1647static int
1648saw_option (char *option)
1649{
1650 int i;
1651
d74720d2
KT
1652 is_underscoring ();
1653
99ad8390 1654 for (i = 0; init[i].ptr; i++)
522f09cd 1655 if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0)
99ad8390
NC
1656 return init[i].inited;
1657 return 0;
1658}
1659#endif /* DLL_SUPPORT */
1660
1661static bfd_boolean
1662gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1663{
1664#ifdef DLL_SUPPORT
1665 const char *ext = entry->filename + strlen (entry->filename) - 4;
1666
42627821 1667 if (filename_cmp (ext, ".def") == 0 || filename_cmp (ext, ".DEF") == 0)
99ad8390
NC
1668 {
1669 pep_def_file = def_file_parse (entry->filename, pep_def_file);
1670
1671 if (pep_def_file)
1672 {
1673 int i, buflen=0, len;
1674 char *buf;
1675
1676 for (i = 0; i < pep_def_file->num_exports; i++)
1677 {
1678 len = strlen (pep_def_file->exports[i].internal_name);
1679 if (buflen < len + 2)
1680 buflen = len + 2;
1681 }
1682
1683 buf = xmalloc (buflen);
1684
1685 for (i = 0; i < pep_def_file->num_exports; i++)
1686 {
1687 struct bfd_link_hash_entry *h;
1688
522f09cd
KT
1689 sprintf (buf, "%s%s", U (""),
1690 pep_def_file->exports[i].internal_name);
99ad8390
NC
1691
1692 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1693 if (h == (struct bfd_link_hash_entry *) NULL)
df5f2391 1694 einfo (_("%F%P: bfd_link_hash_lookup failed: %E\n"));
99ad8390
NC
1695 if (h->type == bfd_link_hash_new)
1696 {
1697 h->type = bfd_link_hash_undefined;
1698 h->u.undef.abfd = NULL;
1699 bfd_link_add_undef (link_info.hash, h);
1700 }
1701 }
1702 free (buf);
1703
1704 /* def_file_print (stdout, pep_def_file); */
1705 if (pep_def_file->is_dll == 1)
64d94ba0 1706 link_info.type = type_dll;
99ad8390
NC
1707
1708 if (pep_def_file->base_address != (bfd_vma)(-1))
1709 {
f13a99db
AM
1710 pep.ImageBase
1711 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1712 = init[IMAGEBASEOFF].value
1713 = pep_def_file->base_address;
99ad8390
NC
1714 init[IMAGEBASEOFF].inited = 1;
1715 if (image_base_statement)
eb8476a6
MR
1716 image_base_statement->exp
1717 = exp_assign ("__image_base__", exp_intop (pep.ImageBase),
1718 FALSE);
99ad8390
NC
1719 }
1720
1721 if (pep_def_file->stack_reserve != -1
1722 && ! saw_option ("__size_of_stack_reserve__"))
1723 {
1724 pep.SizeOfStackReserve = pep_def_file->stack_reserve;
1725 if (pep_def_file->stack_commit != -1)
1726 pep.SizeOfStackCommit = pep_def_file->stack_commit;
1727 }
1728 if (pep_def_file->heap_reserve != -1
1729 && ! saw_option ("__size_of_heap_reserve__"))
1730 {
1731 pep.SizeOfHeapReserve = pep_def_file->heap_reserve;
1732 if (pep_def_file->heap_commit != -1)
1733 pep.SizeOfHeapCommit = pep_def_file->heap_commit;
1734 }
1735 return TRUE;
1736 }
1737 }
1738#endif
1739 return FALSE;
1740}
1741
1742static bfd_boolean
1743gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1744{
d74720d2 1745 is_underscoring ();
99ad8390
NC
1746#ifdef DLL_SUPPORT
1747#ifdef TARGET_IS_i386pep
1748 pep_dll_id_target ("pei-x86-64");
1749#endif
880383ca
NC
1750 if (pep_bfd_is_dll (entry->the_bfd))
1751 return pep_implied_import_dll (entry->filename);
99ad8390
NC
1752#endif
1753 return FALSE;
1754}
1755
1756static void
1757gld_${EMULATION_NAME}_finish (void)
1758{
d74720d2 1759 is_underscoring ();
99ad8390
NC
1760 finish_default ();
1761
1762#ifdef DLL_SUPPORT
0e1862bb 1763 if (bfd_link_pic (&link_info)
dc9bd8c9 1764 || pep_dll_enable_reloc_section
0e1862bb
L
1765 || (!bfd_link_relocatable (&link_info)
1766 && pep_def_file->num_exports != 0))
99ad8390 1767 {
f13a99db 1768 pep_dll_fill_sections (link_info.output_bfd, &link_info);
76359541
TP
1769 if (command_line.out_implib_filename)
1770 pep_dll_generate_implib (pep_def_file,
1771 command_line.out_implib_filename, &link_info);
99ad8390
NC
1772 }
1773
1774 if (pep_out_def_filename)
1775 pep_dll_generate_def_file (pep_out_def_filename);
1776#endif /* DLL_SUPPORT */
1777
1778 /* I don't know where .idata gets set as code, but it shouldn't be. */
1779 {
f13a99db 1780 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
99ad8390
NC
1781
1782 if (asec)
1783 {
1784 asec->flags &= ~SEC_CODE;
1785 asec->flags |= SEC_DATA;
1786 }
1787 }
1788}
1789
1790\f
1791/* Place an orphan section.
1792
1793 We use this to put sections in a reasonable place in the file, and
1794 to ensure that they are aligned as required.
1795
d34c1c51 1796 We handle grouped sections here as well. A section named .foo\$nn
99ad8390
NC
1797 goes into the output section .foo. All grouped sections are sorted
1798 by name.
1799
1800 Grouped sections for the default sections are handled by the
1801 default linker script using wildcards, and are sorted by
1802 sort_sections. */
1803
c2edb4b8 1804static lang_output_section_statement_type *
8a99a385
AM
1805gld_${EMULATION_NAME}_place_orphan (asection *s,
1806 const char *secname,
1807 int constraint)
99ad8390 1808{
bcacc0f5 1809 const char *orig_secname = secname;
99ad8390
NC
1810 char *dollar = NULL;
1811 lang_output_section_statement_type *os;
1812 lang_statement_list_type add_child;
b5f14a6d 1813 lang_output_section_statement_type *match_by_name = NULL;
011aa75f 1814 lang_statement_union_type **pl;
99ad8390 1815
99ad8390 1816 /* Look through the script to see where to place this section. */
0e1862bb 1817 if (!bfd_link_relocatable (&link_info)
d34c1c51 1818 && (dollar = strchr (secname, '\$')) != NULL)
99ad8390 1819 {
bcacc0f5 1820 size_t len = dollar - secname;
99ad8390 1821 char *newname = xmalloc (len + 1);
bcacc0f5 1822 memcpy (newname, secname, len);
99ad8390
NC
1823 newname[len] = '\0';
1824 secname = newname;
1825 }
1826
99ad8390
NC
1827 lang_list_init (&add_child);
1828
d127ecce
AM
1829 os = NULL;
1830 if (constraint == 0)
1831 for (os = lang_output_section_find (secname);
1832 os != NULL;
1833 os = next_matching_output_section_statement (os, 0))
1834 {
1835 /* If we don't match an existing output section, tell
1836 lang_insert_orphan to create a new output section. */
1837 constraint = SPECIAL;
1838
1839 if (os->bfd_section != NULL
1840 && (os->bfd_section->flags == 0
1841 || ((s->flags ^ os->bfd_section->flags)
1842 & (SEC_LOAD | SEC_ALLOC)) == 0))
1843 {
1844 /* We already have an output section statement with this
1845 name, and its bfd section has compatible flags.
1846 If the section already exists but does not have any flags set,
1847 then it has been created by the linker, probably as a result of
1848 a --section-start command line switch. */
b9c361e0 1849 lang_add_section (&add_child, s, NULL, os);
d127ecce
AM
1850 break;
1851 }
b5f14a6d
DD
1852
1853 /* Save unused output sections in case we can match them
1854 against orphans later. */
1855 if (os->bfd_section == NULL)
1856 match_by_name = os;
d127ecce
AM
1857 }
1858
b5f14a6d
DD
1859 /* If we didn't match an active output section, see if we matched an
1860 unused one and use that. */
1861 if (os == NULL && match_by_name)
1862 {
b9c361e0 1863 lang_add_section (&match_by_name->children, s, NULL, match_by_name);
b5f14a6d
DD
1864 return match_by_name;
1865 }
1866
d127ecce 1867 if (os == NULL)
99ad8390
NC
1868 {
1869 static struct orphan_save hold[] =
1870 {
1871 { ".text",
1872 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1873 0, 0, 0, 0 },
d4874973
KT
1874 { ".idata",
1875 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1876 0, 0, 0, 0 },
99ad8390
NC
1877 { ".rdata",
1878 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1879 0, 0, 0, 0 },
1880 { ".data",
1881 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1882 0, 0, 0, 0 },
1883 { ".bss",
1884 SEC_ALLOC,
1885 0, 0, 0, 0 }
1886 };
1887 enum orphan_save_index
1888 {
1889 orphan_text = 0,
d4874973 1890 orphan_idata,
99ad8390
NC
1891 orphan_rodata,
1892 orphan_data,
1893 orphan_bss
1894 };
1895 static int orphan_init_done = 0;
1896 struct orphan_save *place;
1897 lang_output_section_statement_type *after;
1898 etree_type *address;
93638471
AM
1899 flagword flags;
1900 asection *nexts;
99ad8390
NC
1901
1902 if (!orphan_init_done)
1903 {
1904 struct orphan_save *ho;
1905 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1906 if (ho->name != NULL)
1907 {
1908 ho->os = lang_output_section_find (ho->name);
1909 if (ho->os != NULL && ho->os->flags == 0)
1910 ho->os->flags = ho->flags;
1911 }
1912 orphan_init_done = 1;
1913 }
1914
523f4c92
L
1915 flags = s->flags;
1916 if (!bfd_link_relocatable (&link_info))
1917 {
1918 nexts = s;
1919 while ((nexts = bfd_get_next_section_by_name (nexts->owner,
1920 nexts)))
1921 if (nexts->output_section == NULL
1922 && (nexts->flags & SEC_EXCLUDE) == 0
1923 && ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0
1924 && (nexts->owner->flags & DYNAMIC) == 0
00f93c44 1925 && !bfd_input_just_syms (nexts->owner))
523f4c92
L
1926 flags = (((flags ^ SEC_READONLY)
1927 | (nexts->flags ^ SEC_READONLY))
1928 ^ SEC_READONLY);
1929 }
1930
99ad8390
NC
1931 /* Try to put the new output section in a reasonable place based
1932 on the section name and section flags. */
1933
1934 place = NULL;
93638471 1935 if ((flags & SEC_ALLOC) == 0)
99ad8390 1936 ;
93638471 1937 else if ((flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
99ad8390 1938 place = &hold[orphan_bss];
93638471 1939 else if ((flags & SEC_READONLY) == 0)
99ad8390 1940 place = &hold[orphan_data];
93638471 1941 else if ((flags & SEC_CODE) == 0)
d4874973
KT
1942 {
1943 place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata]
1944 : &hold[orphan_rodata]);
1945 }
99ad8390
NC
1946 else
1947 place = &hold[orphan_text];
1948
1949 after = NULL;
1950 if (place != NULL)
1951 {
1952 if (place->os == NULL)
1953 place->os = lang_output_section_find (place->name);
1954 after = place->os;
1955 if (after == NULL)
93638471
AM
1956 after = lang_output_section_find_by_flags (s, flags, &place->os,
1957 NULL);
99ad8390
NC
1958 if (after == NULL)
1959 /* *ABS* is always the first output section statement. */
8ce18f9c 1960 after = (void *) lang_os_list.head;
99ad8390
NC
1961 }
1962
4bf0cafb
DK
1963 /* All sections in an executable must be aligned to a page boundary.
1964 In a relocatable link, just preserve the incoming alignment; the
1965 address is discarded by lang_insert_orphan in that case, anyway. */
99ad8390 1966 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
8a99a385
AM
1967 os = lang_insert_orphan (s, secname, constraint, after, place, address,
1968 &add_child);
0e1862bb 1969 if (bfd_link_relocatable (&link_info))
4bf0cafb 1970 {
3d9c8f6b 1971 os->section_alignment = exp_intop (1U << s->alignment_power);
4bf0cafb
DK
1972 os->bfd_section->alignment_power = s->alignment_power;
1973 }
99ad8390
NC
1974 }
1975
011aa75f
AM
1976 /* If the section name has a '\$', sort it with the other '\$'
1977 sections. */
1978 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next)
1979 {
1980 lang_input_section_type *ls;
1981 const char *lname;
99ad8390 1982
011aa75f
AM
1983 if ((*pl)->header.type != lang_input_section_enum)
1984 continue;
99ad8390 1985
011aa75f 1986 ls = &(*pl)->input_section;
99ad8390 1987
fd361982 1988 lname = bfd_section_name (ls->section);
011aa75f
AM
1989 if (strchr (lname, '\$') != NULL
1990 && (dollar == NULL || strcmp (orig_secname, lname) < 0))
1991 break;
1992 }
99ad8390 1993
011aa75f
AM
1994 if (add_child.head != NULL)
1995 {
1996 *add_child.tail = *pl;
1997 *pl = add_child.head;
1998 }
99ad8390 1999
c2edb4b8 2000 return os;
99ad8390
NC
2001}
2002
2003static bfd_boolean
2004gld_${EMULATION_NAME}_open_dynamic_archive
2005 (const char *arch ATTRIBUTE_UNUSED,
2006 search_dirs_type *search,
2007 lang_input_statement_type *entry)
2008{
2009 static const struct
2010 {
2011 const char * format;
2012 bfd_boolean use_prefix;
2013 }
2014 libname_fmt [] =
2015 {
2016 /* Preferred explicit import library for dll's. */
2017 { "lib%s.dll.a", FALSE },
2018 /* Alternate explicit import library for dll's. */
2019 { "%s.dll.a", FALSE },
2020 /* "libfoo.a" could be either an import lib or a static lib.
6c19b93b
AM
2021 For backwards compatibility, libfoo.a needs to precede
2022 libfoo.dll and foo.dll in the search. */
99ad8390 2023 { "lib%s.a", FALSE },
92b93329 2024 /* The 'native' spelling of an import lib name is "foo.lib". */
99ad8390 2025 { "%s.lib", FALSE },
f6c4d4b1
NC
2026 /* PR 22948 - Check for an import library. */
2027 { "lib%s.lib", FALSE },
99ad8390
NC
2028#ifdef DLL_SUPPORT
2029 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
2030 { "%s%s.dll", TRUE },
2031#endif
2032 /* Try "libfoo.dll" (default preferred dll name). */
2033 { "lib%s.dll", FALSE },
2034 /* Finally try 'native' dll name "foo.dll". */
2035 { "%s.dll", FALSE },
2036 /* Note: If adding more formats to this table, make sure to check to
2037 see if their length is longer than libname_fmt[0].format, and if
2038 so, update the call to xmalloc() below. */
2039 { NULL, FALSE }
2040 };
2041 static unsigned int format_max_len = 0;
2042 const char * filename;
2043 char * full_string;
2044 char * base_string;
2045 unsigned int i;
2046
2047
d4ae5fb0 2048 if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
99ad8390
NC
2049 return FALSE;
2050
2051 filename = entry->filename;
2052
2053 if (format_max_len == 0)
2054 /* We need to allow space in the memory that we are going to allocate
2055 for the characters in the format string. Since the format array is
2056 static we only need to calculate this information once. In theory
2057 this value could also be computed statically, but this introduces
2058 the possibility for a discrepancy and hence a possible memory
2059 corruption. The lengths we compute here will be too long because
2060 they will include any formating characters (%s) in the strings, but
2061 this will not matter. */
2062 for (i = 0; libname_fmt[i].format; i++)
2063 if (format_max_len < strlen (libname_fmt[i].format))
2064 format_max_len = strlen (libname_fmt[i].format);
2065
2066 full_string = xmalloc (strlen (search->name)
2067 + strlen (filename)
2068 + format_max_len
2069#ifdef DLL_SUPPORT
2070 + (pep_dll_search_prefix
2071 ? strlen (pep_dll_search_prefix) : 0)
2072#endif
2073 /* Allow for the terminating NUL and for the path
2074 separator character that is inserted between
2075 search->name and the start of the format string. */
2076 + 2);
2077
2078 sprintf (full_string, "%s/", search->name);
2079 base_string = full_string + strlen (full_string);
2080
2081 for (i = 0; libname_fmt[i].format; i++)
2082 {
92b93329 2083#ifdef DLL_SUPPORT
99ad8390
NC
2084 if (libname_fmt[i].use_prefix)
2085 {
2086 if (!pep_dll_search_prefix)
2087 continue;
2088 sprintf (base_string, libname_fmt[i].format, pep_dll_search_prefix, filename);
2089 }
2090 else
2091#endif
2092 sprintf (base_string, libname_fmt[i].format, filename);
2093
2094 if (ldfile_try_open_bfd (full_string, entry))
2095 break;
2096 }
2097
2098 if (!libname_fmt[i].format)
2099 {
2100 free (full_string);
2101 return FALSE;
2102 }
2103
2104 entry->filename = full_string;
2105
2106 return TRUE;
2107}
2108
2109static int
2110gld_${EMULATION_NAME}_find_potential_libraries
2111 (char *name, lang_input_statement_type *entry)
2112{
2113 return ldfile_open_file_search (name, entry, "", ".lib");
2114}
2115\f
2116static char *
2117gld_${EMULATION_NAME}_get_script (int *isfile)
2118EOF
2119# Scripts compiled in.
2120# sed commands to quote an ld script as a C string.
2121sc="-f stringify.sed"
2122
92b93329 2123fragment <<EOF
99ad8390
NC
2124{
2125 *isfile = 0;
2126
0e1862bb 2127 if (bfd_link_relocatable (&link_info) && config.build_constructors)
99ad8390
NC
2128 return
2129EOF
2130sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
0e1862bb 2131echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
99ad8390
NC
2132sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
2133echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
2134sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
2135echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
2136sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
e2a83dd0 2137if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
6ec6c79c 2138echo ' ; else if (link_info.pei386_auto_import == 1 && link_info.pei386_runtime_pseudo_reloc != 2) return' >> e${EMULATION_NAME}.c
e2a83dd0
NC
2139sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
2140fi
99ad8390
NC
2141echo ' ; else return' >> e${EMULATION_NAME}.c
2142sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
2143echo '; }' >> e${EMULATION_NAME}.c
2144
92b93329 2145fragment <<EOF
99ad8390
NC
2146
2147
2148struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
2149{
2150 gld_${EMULATION_NAME}_before_parse,
2151 syslib_default,
2152 hll_default,
2153 gld_${EMULATION_NAME}_after_parse,
2154 gld_${EMULATION_NAME}_after_open,
5c3261b0 2155 after_check_relocs_default,
9b538ba7 2156 before_place_orphans_default,
99ad8390
NC
2157 after_allocation_default,
2158 set_output_arch_default,
2159 ldemul_default_target,
2160 gld_${EMULATION_NAME}_before_allocation,
2161 gld_${EMULATION_NAME}_get_script,
2162 "${EMULATION_NAME}",
2163 "${OUTPUT_FORMAT}",
2164 gld_${EMULATION_NAME}_finish,
2165 NULL, /* Create output section statements. */
2166 gld_${EMULATION_NAME}_open_dynamic_archive,
2167 gld_${EMULATION_NAME}_place_orphan,
2168 gld_${EMULATION_NAME}_set_symbols,
2169 NULL, /* parse_args */
2170 gld${EMULATION_NAME}_add_options,
2171 gld${EMULATION_NAME}_handle_option,
2172 gld_${EMULATION_NAME}_unrecognized_file,
2173 gld_${EMULATION_NAME}_list_options,
2174 gld_${EMULATION_NAME}_recognized_file,
2175 gld_${EMULATION_NAME}_find_potential_libraries,
7a2f2d82 2176 NULL, /* new_vers_pattern. */
1ff6de03
NA
2177 NULL, /* extra_map_file_text */
2178 ${LDEMUL_EMIT_CTF_EARLY-NULL},
2179 ${LDEMUL_EXAMINE_STRTAB_FOR_CTF-NULL}
99ad8390
NC
2180};
2181EOF
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