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Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.20.1/] [ld/] [emultempl/] [pe.em] - Blame information for rev 645

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Line No. Rev Author Line
1 205 julius
# This shell script emits a C file. -*- C -*-
2
# It does some substitutions.
3
test -z "${ENTRY}" && ENTRY="_mainCRTStartup"
4
if [ -z "$MACHINE" ]; then
5
  OUTPUT_ARCH=${ARCH}
6
else
7
  OUTPUT_ARCH=${ARCH}:${MACHINE}
8
fi
9
rm -f e${EMULATION_NAME}.c
10
(echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
11
fragment <
12
/* Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
13
   2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
14
 
15
   This file is part of the GNU Binutils.
16
 
17
   This program is free software; you can redistribute it and/or modify
18
   it under the terms of the GNU General Public License as published by
19
   the Free Software Foundation; either version 3 of the License, or
20
   (at your option) any later version.
21
 
22
   This program is distributed in the hope that it will be useful,
23
   but WITHOUT ANY WARRANTY; without even the implied warranty of
24
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
25
   GNU General Public License for more details.
26
 
27
   You should have received a copy of the GNU General Public License
28
   along with this program; if not, write to the Free Software
29
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
30
   MA 02110-1301, USA.  */
31
 
32
 
33
/* For WINDOWS_NT */
34
/* The original file generated returned different default scripts depending
35
   on whether certain switches were set, but these switches pertain to the
36
   Linux system and that particular version of coff.  In the NT case, we
37
   only determine if the subsystem is console or windows in order to select
38
   the correct entry point by default. */
39
 
40
#define TARGET_IS_${EMULATION_NAME}
41
 
42
/* Do this before including bfd.h, so we prototype the right functions.  */
43
 
44
#if defined(TARGET_IS_armpe) \
45
    || defined(TARGET_IS_arm_epoc_pe) \
46
    || defined(TARGET_IS_arm_wince_pe)
47
#define bfd_arm_allocate_interworking_sections \
48
        bfd_${EMULATION_NAME}_allocate_interworking_sections
49
#define bfd_arm_get_bfd_for_interworking \
50
        bfd_${EMULATION_NAME}_get_bfd_for_interworking
51
#define bfd_arm_process_before_allocation \
52
        bfd_${EMULATION_NAME}_process_before_allocation
53
#endif
54
 
55
#include "sysdep.h"
56
#include "bfd.h"
57
#include "bfdlink.h"
58
#include "getopt.h"
59
#include "libiberty.h"
60
#include "ld.h"
61
#include "ldmain.h"
62
#include "ldexp.h"
63
#include "ldlang.h"
64
#include "ldfile.h"
65
#include "ldemul.h"
66
#include 
67
#include "ldlex.h"
68
#include "ldmisc.h"
69
#include "ldctor.h"
70
#include "coff/internal.h"
71
 
72
/* FIXME: See bfd/peXXigen.c for why we include an architecture specific
73
   header in generic PE code.  */
74
#include "coff/i386.h"
75
#include "coff/pe.h"
76
 
77
/* FIXME: This is a BFD internal header file, and we should not be
78
   using it here.  */
79
#include "../bfd/libcoff.h"
80
 
81
#include "deffile.h"
82
#include "pe-dll.h"
83
#include "safe-ctype.h"
84
 
85
/* Permit the emulation parameters to override the default section
86
   alignment by setting OVERRIDE_SECTION_ALIGNMENT.  FIXME: This makes
87
   it seem that include/coff/internal.h should not define
88
   PE_DEF_SECTION_ALIGNMENT.  */
89
#if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
90
#undef PE_DEF_SECTION_ALIGNMENT
91
#define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
92
#endif
93
 
94
#if defined(TARGET_IS_i386pe) \
95
    || defined(TARGET_IS_shpe) \
96
    || defined(TARGET_IS_mipspe) \
97
    || defined(TARGET_IS_armpe) \
98
    || defined(TARGET_IS_arm_epoc_pe) \
99
    || defined(TARGET_IS_arm_wince_pe)
100
#define DLL_SUPPORT
101
#endif
102
 
103
#if defined(TARGET_IS_i386pe) || ! defined(DLL_SUPPORT)
104
#define PE_DEF_SUBSYSTEM                3
105
#else
106
#undef NT_EXE_IMAGE_BASE
107
#undef PE_DEF_SECTION_ALIGNMENT
108
#undef PE_DEF_FILE_ALIGNMENT
109
#define NT_EXE_IMAGE_BASE               0x00010000
110
 
111
#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
112
#define PE_DEF_SECTION_ALIGNMENT        0x00001000
113
#define PE_DEF_SUBSYSTEM                9
114
#else
115
#define PE_DEF_SECTION_ALIGNMENT        0x00000400
116
#define PE_DEF_SUBSYSTEM                2
117
#endif
118
#define PE_DEF_FILE_ALIGNMENT           0x00000200
119
#endif
120
 
121
#define U(S) ${INITIAL_SYMBOL_CHAR} S
122
 
123
static struct internal_extra_pe_aouthdr pe;
124
static int dll;
125
static flagword real_flags = 0;
126
static int support_old_code = 0;
127
static char * thumb_entry_symbol = NULL;
128
static lang_assignment_statement_type *image_base_statement = 0;
129
static unsigned short pe_dll_characteristics = 0;
130
 
131
#ifdef DLL_SUPPORT
132
static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable.  */
133
static char *pe_out_def_filename = NULL;
134
static char *pe_implib_filename = NULL;
135
static int pe_enable_auto_image_base = 0;
136
static char *pe_dll_search_prefix = NULL;
137
#endif
138
 
139
extern const char *output_filename;
140
 
141
static void
142
gld_${EMULATION_NAME}_before_parse (void)
143
{
144
  ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
145
  output_filename = "${EXECUTABLE_NAME:-a.exe}";
146
#ifdef DLL_SUPPORT
147
  config.dynamic_link = TRUE;
148
  config.has_shared = 1;
149
EOF
150
 
151
# Cygwin no longer wants these noisy warnings.  Other PE
152
# targets might like to consider adding themselves here.
153
case ${target} in
154
  *-*-cygwin*)
155
    default_auto_import=1
156
    ;;
157
  *)
158
    default_auto_import=-1
159
    ;;
160
esac
161
 
162
fragment <
163
  link_info.pei386_auto_import = ${default_auto_import};
164
  link_info.pei386_runtime_pseudo_reloc = 1; /* Use by default version 1.  */
165
 
166
#if (PE_DEF_SUBSYSTEM == 9) || (PE_DEF_SUBSYSTEM == 2)
167
#if defined TARGET_IS_mipspe || defined TARGET_IS_armpe || defined TARGET_IS_arm_wince_pe
168
  lang_default_entry ("WinMainCRTStartup");
169
#else
170
  lang_default_entry ("_WinMainCRTStartup");
171
#endif
172
#else
173
  lang_default_entry ("${ENTRY}");
174
#endif
175
#endif
176
}
177
 
178
/* PE format extra command line options.  */
179
 
180
/* Used for setting flags in the PE header.  */
181
#define OPTION_BASE_FILE                (300  + 1)
182
#define OPTION_DLL                      (OPTION_BASE_FILE + 1)
183
#define OPTION_FILE_ALIGNMENT           (OPTION_DLL + 1)
184
#define OPTION_IMAGE_BASE               (OPTION_FILE_ALIGNMENT + 1)
185
#define OPTION_MAJOR_IMAGE_VERSION      (OPTION_IMAGE_BASE + 1)
186
#define OPTION_MAJOR_OS_VERSION         (OPTION_MAJOR_IMAGE_VERSION + 1)
187
#define OPTION_MAJOR_SUBSYSTEM_VERSION  (OPTION_MAJOR_OS_VERSION + 1)
188
#define OPTION_MINOR_IMAGE_VERSION      (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
189
#define OPTION_MINOR_OS_VERSION         (OPTION_MINOR_IMAGE_VERSION + 1)
190
#define OPTION_MINOR_SUBSYSTEM_VERSION  (OPTION_MINOR_OS_VERSION + 1)
191
#define OPTION_SECTION_ALIGNMENT        (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
192
#define OPTION_STACK                    (OPTION_SECTION_ALIGNMENT + 1)
193
#define OPTION_SUBSYSTEM                (OPTION_STACK + 1)
194
#define OPTION_HEAP                     (OPTION_SUBSYSTEM + 1)
195
#define OPTION_SUPPORT_OLD_CODE         (OPTION_HEAP + 1)
196
#define OPTION_OUT_DEF                  (OPTION_SUPPORT_OLD_CODE + 1)
197
#define OPTION_EXPORT_ALL               (OPTION_OUT_DEF + 1)
198
#define OPTION_EXCLUDE_SYMBOLS          (OPTION_EXPORT_ALL + 1)
199
#define OPTION_KILL_ATS                 (OPTION_EXCLUDE_SYMBOLS + 1)
200
#define OPTION_STDCALL_ALIASES          (OPTION_KILL_ATS + 1)
201
#define OPTION_ENABLE_STDCALL_FIXUP     (OPTION_STDCALL_ALIASES + 1)
202
#define OPTION_DISABLE_STDCALL_FIXUP    (OPTION_ENABLE_STDCALL_FIXUP + 1)
203
#define OPTION_IMPLIB_FILENAME          (OPTION_DISABLE_STDCALL_FIXUP + 1)
204
#define OPTION_THUMB_ENTRY              (OPTION_IMPLIB_FILENAME + 1)
205
#define OPTION_WARN_DUPLICATE_EXPORTS   (OPTION_THUMB_ENTRY + 1)
206
#define OPTION_IMP_COMPAT               (OPTION_WARN_DUPLICATE_EXPORTS + 1)
207
#define OPTION_ENABLE_AUTO_IMAGE_BASE   (OPTION_IMP_COMPAT + 1)
208
#define OPTION_DISABLE_AUTO_IMAGE_BASE  (OPTION_ENABLE_AUTO_IMAGE_BASE + 1)
209
#define OPTION_DLL_SEARCH_PREFIX        (OPTION_DISABLE_AUTO_IMAGE_BASE + 1)
210
#define OPTION_NO_DEFAULT_EXCLUDES      (OPTION_DLL_SEARCH_PREFIX + 1)
211
#define OPTION_DLL_ENABLE_AUTO_IMPORT   (OPTION_NO_DEFAULT_EXCLUDES + 1)
212
#define OPTION_DLL_DISABLE_AUTO_IMPORT  (OPTION_DLL_ENABLE_AUTO_IMPORT + 1)
213
#define OPTION_ENABLE_EXTRA_PE_DEBUG    (OPTION_DLL_DISABLE_AUTO_IMPORT + 1)
214
#define OPTION_EXCLUDE_LIBS             (OPTION_ENABLE_EXTRA_PE_DEBUG + 1)
215
#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC  \
216
                                        (OPTION_EXCLUDE_LIBS + 1)
217
#define OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC \
218
                                        (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC + 1)
219
#define OPTION_LARGE_ADDRESS_AWARE \
220
                                        (OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC + 1)
221
#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1       \
222
                                        (OPTION_LARGE_ADDRESS_AWARE + 1)
223
#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2       \
224
                                        (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1 + 1)
225
#define OPTION_EXCLUDE_MODULES_FOR_IMPLIB \
226
                                        (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2 + 1)
227
#define OPTION_USE_NUL_PREFIXED_IMPORT_TABLES \
228
                                        (OPTION_EXCLUDE_MODULES_FOR_IMPLIB + 1)
229
#define OPTION_ENABLE_LONG_SECTION_NAMES \
230
                                        (OPTION_USE_NUL_PREFIXED_IMPORT_TABLES + 1)
231
#define OPTION_DISABLE_LONG_SECTION_NAMES \
232
                                        (OPTION_ENABLE_LONG_SECTION_NAMES + 1)
233
/* DLLCharacteristics flags */
234
#define OPTION_DYNAMIC_BASE             (OPTION_DISABLE_LONG_SECTION_NAMES + 1)
235
#define OPTION_FORCE_INTEGRITY          (OPTION_DYNAMIC_BASE + 1)
236
#define OPTION_NX_COMPAT                (OPTION_FORCE_INTEGRITY + 1)
237
#define OPTION_NO_ISOLATION             (OPTION_NX_COMPAT + 1)
238
#define OPTION_NO_SEH                   (OPTION_NO_ISOLATION + 1)
239
#define OPTION_NO_BIND                  (OPTION_NO_SEH + 1)
240
#define OPTION_WDM_DRIVER               (OPTION_NO_BIND + 1)
241
#define OPTION_TERMINAL_SERVER_AWARE    (OPTION_WDM_DRIVER + 1)
242
 
243
static void
244
gld${EMULATION_NAME}_add_options
245
  (int ns ATTRIBUTE_UNUSED,
246
   char **shortopts ATTRIBUTE_UNUSED,
247
   int nl,
248
   struct option **longopts,
249
   int nrl ATTRIBUTE_UNUSED,
250
   struct option **really_longopts ATTRIBUTE_UNUSED)
251
{
252
  static const struct option xtra_long[] = {
253
    /* PE options */
254
    {"base-file", required_argument, NULL, OPTION_BASE_FILE},
255
    {"dll", no_argument, NULL, OPTION_DLL},
256
    {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
257
    {"heap", required_argument, NULL, OPTION_HEAP},
258
    {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
259
    {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
260
    {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
261
    {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
262
    {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
263
    {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
264
    {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
265
    {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
266
    {"stack", required_argument, NULL, OPTION_STACK},
267
    {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
268
    {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
269
    {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
270
    {"use-nul-prefixed-import-tables", no_argument, NULL,
271
     OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},
272
#ifdef DLL_SUPPORT
273
    /* getopt allows abbreviations, so we do this to stop it
274
       from treating -o as an abbreviation for this option.  */
275
    {"output-def", required_argument, NULL, OPTION_OUT_DEF},
276
    {"output-def", required_argument, NULL, OPTION_OUT_DEF},
277
    {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
278
    {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
279
    {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
280
    {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB},
281
    {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
282
    {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
283
    {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
284
    {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
285
    {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
286
    {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
287
    /* getopt() allows abbreviations, so we do this to stop it from
288
       treating -c as an abbreviation for these --compat-implib.  */
289
    {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
290
    {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
291
    {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
292
    {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
293
    {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
294
    {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
295
    {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
296
    {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
297
    {"enable-extra-pe-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
298
    {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
299
    {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
300
    {"enable-runtime-pseudo-reloc-v1", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1},
301
    {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2},
302
#endif
303
    {"large-address-aware", no_argument, NULL, OPTION_LARGE_ADDRESS_AWARE},
304
    {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES},
305
    {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES},
306
    {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE},
307
    {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY},
308
    {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT},
309
    {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION},
310
    {"no-seh", no_argument, NULL, OPTION_NO_SEH},
311
    {"no-bind", no_argument, NULL, OPTION_NO_BIND},
312
    {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
313
    {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
314
    {NULL, no_argument, NULL, 0}
315
  };
316
 
317
  *longopts
318
    = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
319
  memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
320
}
321
 
322
/* PE/WIN32; added routines to get the subsystem type, heap and/or stack
323
   parameters which may be input from the command line.  */
324
 
325
typedef struct
326
{
327
  void *ptr;
328
  int size;
329
  int value;
330
  char *symbol;
331
  int inited;
332
} definfo;
333
 
334
#define D(field,symbol,def)  {&pe.field,sizeof(pe.field), def, symbol,0}
335
 
336
static definfo init[] =
337
{
338
  /* imagebase must be first */
339
#define IMAGEBASEOFF 0
340
  D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE),
341
#define DLLOFF 1
342
  {&dll, sizeof(dll), 0, "__dll__", 0},
343
#define MSIMAGEBASEOFF  2
344
  D(ImageBase, U ("__ImageBase"), NT_EXE_IMAGE_BASE),
345
  D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
346
  D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
347
  D(MajorOperatingSystemVersion,"__major_os_version__", 4),
348
  D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
349
  D(MajorImageVersion,"__major_image_version__", 1),
350
  D(MinorImageVersion,"__minor_image_version__", 0),
351
#if defined(TARGET_IS_armpe)  || defined(TARGET_IS_arm_wince_pe)
352
  D(MajorSubsystemVersion,"__major_subsystem_version__", 3),
353
#else
354
  D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
355
#endif
356
  D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
357
  D(Subsystem,"__subsystem__", ${SUBSYSTEM}),
358
  D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000),
359
  D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
360
  D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
361
  D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
362
  D(LoaderFlags,"__loader_flags__", 0x0),
363
  D(DllCharacteristics, "__dll_characteristics__", 0x0),
364
  { NULL, 0, 0, NULL, 0 }
365
};
366
 
367
 
368
static void
369
gld_${EMULATION_NAME}_list_options (FILE *file)
370
{
371
  fprintf (file, _("  --base_file              Generate a base file for relocatable DLLs\n"));
372
  fprintf (file, _("  --dll                              Set image base to the default for DLLs\n"));
373
  fprintf (file, _("  --file-alignment             Set file alignment\n"));
374
  fprintf (file, _("  --heap                       Set initial size of the heap\n"));
375
  fprintf (file, _("  --image-base 
Set start address of the executable\n"));
376
  fprintf (file, _("  --major-image-version      Set version number of the executable\n"));
377
  fprintf (file, _("  --major-os-version         Set minimum required OS version\n"));
378
  fprintf (file, _("  --major-subsystem-version  Set minimum required OS subsystem version\n"));
379
  fprintf (file, _("  --minor-image-version      Set revision number of the executable\n"));
380
  fprintf (file, _("  --minor-os-version         Set minimum required OS revision\n"));
381
  fprintf (file, _("  --minor-subsystem-version  Set minimum required OS subsystem revision\n"));
382
  fprintf (file, _("  --section-alignment          Set section alignment\n"));
383
  fprintf (file, _("  --stack                      Set size of the initial stack\n"));
384
  fprintf (file, _("  --subsystem [:]     Set required OS subsystem [& version]\n"));
385
  fprintf (file, _("  --support-old-code                 Support interworking with old code\n"));
386
  fprintf (file, _("  --thumb-entry=             Set the entry point to be Thumb \n"));
387
#ifdef DLL_SUPPORT
388
  fprintf (file, _("  --add-stdcall-alias                Export symbols with and without @nn\n"));
389
  fprintf (file, _("  --disable-stdcall-fixup            Don't link _sym to _sym@nn\n"));
390
  fprintf (file, _("  --enable-stdcall-fixup             Link _sym to _sym@nn without warnings\n"));
391
  fprintf (file, _("  --exclude-symbols sym,sym,...      Exclude symbols from automatic export\n"));
392
  fprintf (file, _("  --exclude-libs lib,lib,...         Exclude libraries from automatic export\n"));
393
  fprintf (file, _("  --exclude-modules-for-implib mod,mod,...\n"));
394
  fprintf (file, _("                                     Exclude objects, archive members from auto\n"));
395
  fprintf (file, _("                                     export, place into import library instead.\n"));
396
  fprintf (file, _("  --export-all-symbols               Automatically export all globals to DLL\n"));
397
  fprintf (file, _("  --kill-at                          Remove @nn from exported symbols\n"));
398
  fprintf (file, _("  --out-implib                 Generate import library\n"));
399
  fprintf (file, _("  --output-def                 Generate a .DEF file for the built DLL\n"));
400
  fprintf (file, _("  --warn-duplicate-exports           Warn about duplicate exports.\n"));
401
  fprintf (file, _("  --compat-implib                    Create backward compatible import libs;\n\
402
                                       create __imp_ as well.\n"));
403
  fprintf (file, _("  --enable-auto-image-base           Automatically choose image base for DLLs\n\
404
                                       unless user specifies one\n"));
405
  fprintf (file, _("  --disable-auto-image-base          Do not auto-choose image base. (default)\n"));
406
  fprintf (file, _("  --dll-search-prefix=       When linking dynamically to a dll without\n\
407
                                       an importlib, use .dll\n\
408
                                       in preference to lib.dll \n"));
409
  fprintf (file, _("  --enable-auto-import               Do sophistcated linking of _sym to\n\
410
                                       __imp_sym for DATA references\n"));
411
  fprintf (file, _("  --disable-auto-import              Do not auto-import DATA items from DLLs\n"));
412
  fprintf (file, _("  --enable-runtime-pseudo-reloc      Work around auto-import limitations by\n\
413
                                       adding pseudo-relocations resolved at\n\
414
                                       runtime.\n"));
415
  fprintf (file, _("  --disable-runtime-pseudo-reloc     Do not add runtime pseudo-relocations for\n\
416
                                       auto-imported DATA.\n"));
417
  fprintf (file, _("  --enable-extra-pe-debug            Enable verbose debug output when building\n\
418
                                       or linking to DLLs (esp. auto-import)\n"));
419
#endif
420
  fprintf (file, _("  --large-address-aware              Executable supports virtual addresses\n\
421
                                       greater than 2 gigabytes\n"));
422
  fprintf (file, _("  --enable-long-section-names        Use long COFF section names even in\n\
423
                                       executable image files\n"));
424
  fprintf (file, _("  --disable-long-section-names       Never use long COFF section names, even\n\
425
                                       in object files\n"));
426
  fprintf (file, _("  --dynamicbase                      Image base address may be relocated using\n\
427
                                       address space layout randomization (ASLR)\n"));
428
  fprintf (file, _("  --forceinteg               Code integrity checks are enforced\n"));
429
  fprintf (file, _("  --nxcompat                 Image is compatible with data execution prevention\n"));
430
  fprintf (file, _("  --no-isolation             Image understands isolation but do not isolate the image\n"));
431
  fprintf (file, _("  --no-seh                   Image does not use SEH. No SE handler may\n\
432
                                       be called in this image\n"));
433
  fprintf (file, _("  --no-bind                  Do not bind this image\n"));
434
  fprintf (file, _("  --wdmdriver                Driver uses the WDM model\n"));
435
  fprintf (file, _("  --tsaware                  Image is Terminal Server aware\n"));
436
}
437
 
438
 
439
static void
440
set_pe_name (char *name, long val)
441
{
442
  int i;
443
 
444
  /* Find the name and set it.  */
445
  for (i = 0; init[i].ptr; i++)
446
    {
447
      if (strcmp (name, init[i].symbol) == 0)
448
        {
449
          init[i].value = val;
450
          init[i].inited = 1;
451
          if (strcmp (name,"__image_base__") == 0)
452
            set_pe_name (U ("__ImageBase"), val);
453
          return;
454
        }
455
    }
456
  abort ();
457
}
458
 
459
 
460
static void
461
set_pe_subsystem (void)
462
{
463
  const char *sver;
464
  const char *entry;
465
  const char *initial_symbol_char;
466
  char *end;
467
  int len;
468
  int i;
469
  int subsystem;
470
  unsigned long temp_subsystem;
471
  static const struct
472
    {
473
      const char *name;
474
      const int value;
475
      const char *entry;
476
    }
477
  v[] =
478
    {
479
      { "native",  1, "NtProcessStartup" },
480
      { "windows", 2, "WinMainCRTStartup" },
481
      { "console", 3, "mainCRTStartup" },
482
      { "posix",   7, "__PosixProcessStartup"},
483
      { "wince",   9, "WinMainCRTStartup" },
484
      { "xbox",   14, "mainCRTStartup" },
485
      { NULL, 0, NULL }
486
    };
487
  /* Entry point name for arbitrary subsystem numbers.  */
488
  static const char default_entry[] = "mainCRTStartup";
489
 
490
  /* Check for the presence of a version number.  */
491
  sver = strchr (optarg, ':');
492
  if (sver == NULL)
493
    len = strlen (optarg);
494
  else
495
    {
496
      len = sver - optarg;
497
      set_pe_name ("__major_subsystem_version__",
498
                   strtoul (sver + 1, &end, 0));
499
      if (*end == '.')
500
        set_pe_name ("__minor_subsystem_version__",
501
                     strtoul (end + 1, &end, 0));
502
      if (*end != '\0')
503
        einfo (_("%P: warning: bad version number in -subsystem option\n"));
504
    }
505
 
506
  /* Check for numeric subsystem.  */
507
  temp_subsystem = strtoul (optarg, & end, 0);
508
  if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
509
    {
510
      /* Search list for a numeric match to use its entry point.  */
511
      for (i = 0; v[i].name; i++)
512
        if (v[i].value == (int) temp_subsystem)
513
          break;
514
 
515
      /* If no match, use the default.  */
516
      if (v[i].name != NULL)
517
        entry = v[i].entry;
518
      else
519
        entry = default_entry;
520
 
521
      /* Use this subsystem.  */
522
      subsystem = (int) temp_subsystem;
523
    }
524
  else
525
    {
526
      /* Search for subsystem by name.  */
527
      for (i = 0; v[i].name; i++)
528
        if (strncmp (optarg, v[i].name, len) == 0
529
            && v[i].name[len] == '\0')
530
          break;
531
 
532
      if (v[i].name == NULL)
533
        {
534
          einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
535
          return;
536
        }
537
 
538
      entry = v[i].entry;
539
      subsystem = v[i].value;
540
    }
541
 
542
  set_pe_name ("__subsystem__", subsystem);
543
 
544
  initial_symbol_char = ${INITIAL_SYMBOL_CHAR};
545
  if (*initial_symbol_char != '\0')
546
    {
547
      char *alc_entry;
548
 
549
      /* lang_default_entry expects its argument to be permanently
550
         allocated, so we don't free this string.  */
551
      alc_entry = xmalloc (strlen (initial_symbol_char)
552
                           + strlen (entry)
553
                           + 1);
554
      strcpy (alc_entry, initial_symbol_char);
555
      strcat (alc_entry, entry);
556
      entry = alc_entry;
557
    }
558
 
559
  lang_default_entry (entry);
560
 
561
  return;
562
}
563
 
564
 
565
static void
566
set_pe_value (char *name)
567
{
568
  char *end;
569
 
570
  set_pe_name (name,  strtoul (optarg, &end, 0));
571
 
572
  if (end == optarg)
573
    einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
574
 
575
  optarg = end;
576
}
577
 
578
 
579
static void
580
set_pe_stack_heap (char *resname, char *comname)
581
{
582
  set_pe_value (resname);
583
 
584
  if (*optarg == ',')
585
    {
586
      optarg++;
587
      set_pe_value (comname);
588
    }
589
  else if (*optarg)
590
    einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
591
}
592
 
593
 
594
static bfd_boolean
595
gld${EMULATION_NAME}_handle_option (int optc)
596
{
597
  switch (optc)
598
    {
599
    default:
600
      return FALSE;
601
 
602
    case OPTION_BASE_FILE:
603
      link_info.base_file = fopen (optarg, FOPEN_WB);
604
      if (link_info.base_file == NULL)
605
        {
606
          /* xgettext:c-format */
607
          fprintf (stderr, _("%s: Can't open base file %s\n"),
608
                   program_name, optarg);
609
          xexit (1);
610
        }
611
      break;
612
 
613
      /* PE options.  */
614
    case OPTION_HEAP:
615
      set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
616
      break;
617
    case OPTION_STACK:
618
      set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
619
      break;
620
    case OPTION_SUBSYSTEM:
621
      set_pe_subsystem ();
622
      break;
623
    case OPTION_MAJOR_OS_VERSION:
624
      set_pe_value ("__major_os_version__");
625
      break;
626
    case OPTION_MINOR_OS_VERSION:
627
      set_pe_value ("__minor_os_version__");
628
      break;
629
    case OPTION_MAJOR_SUBSYSTEM_VERSION:
630
      set_pe_value ("__major_subsystem_version__");
631
      break;
632
    case OPTION_MINOR_SUBSYSTEM_VERSION:
633
      set_pe_value ("__minor_subsystem_version__");
634
      break;
635
    case OPTION_MAJOR_IMAGE_VERSION:
636
      set_pe_value ("__major_image_version__");
637
      break;
638
    case OPTION_MINOR_IMAGE_VERSION:
639
      set_pe_value ("__minor_image_version__");
640
      break;
641
    case OPTION_FILE_ALIGNMENT:
642
      set_pe_value ("__file_alignment__");
643
      break;
644
    case OPTION_SECTION_ALIGNMENT:
645
      set_pe_value ("__section_alignment__");
646
      break;
647
    case OPTION_DLL:
648
      set_pe_name ("__dll__", 1);
649
      break;
650
    case OPTION_IMAGE_BASE:
651
      set_pe_value ("__image_base__");
652
      break;
653
    case OPTION_SUPPORT_OLD_CODE:
654
      support_old_code = 1;
655
      break;
656
    case OPTION_THUMB_ENTRY:
657
      thumb_entry_symbol = optarg;
658
      break;
659
    case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
660
      pe_use_nul_prefixed_import_tables = TRUE;
661
      break;
662
#ifdef DLL_SUPPORT
663
    case OPTION_OUT_DEF:
664
      pe_out_def_filename = xstrdup (optarg);
665
      break;
666
    case OPTION_EXPORT_ALL:
667
      pe_dll_export_everything = 1;
668
      break;
669
    case OPTION_EXCLUDE_SYMBOLS:
670
      pe_dll_add_excludes (optarg, EXCLUDESYMS);
671
      break;
672
    case OPTION_EXCLUDE_LIBS:
673
      pe_dll_add_excludes (optarg, EXCLUDELIBS);
674
      break;
675
    case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
676
      pe_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
677
      break;
678
    case OPTION_KILL_ATS:
679
      pe_dll_kill_ats = 1;
680
      break;
681
    case OPTION_STDCALL_ALIASES:
682
      pe_dll_stdcall_aliases = 1;
683
      break;
684
    case OPTION_ENABLE_STDCALL_FIXUP:
685
      pe_enable_stdcall_fixup = 1;
686
      break;
687
    case OPTION_DISABLE_STDCALL_FIXUP:
688
      pe_enable_stdcall_fixup = 0;
689
      break;
690
    case OPTION_IMPLIB_FILENAME:
691
      pe_implib_filename = xstrdup (optarg);
692
      break;
693
    case OPTION_WARN_DUPLICATE_EXPORTS:
694
      pe_dll_warn_dup_exports = 1;
695
      break;
696
    case OPTION_IMP_COMPAT:
697
      pe_dll_compat_implib = 1;
698
      break;
699
    case OPTION_ENABLE_AUTO_IMAGE_BASE:
700
      pe_enable_auto_image_base = 1;
701
      break;
702
    case OPTION_DISABLE_AUTO_IMAGE_BASE:
703
      pe_enable_auto_image_base = 0;
704
      break;
705
    case OPTION_DLL_SEARCH_PREFIX:
706
      pe_dll_search_prefix = xstrdup (optarg);
707
      break;
708
    case OPTION_NO_DEFAULT_EXCLUDES:
709
      pe_dll_do_default_excludes = 0;
710
      break;
711
    case OPTION_DLL_ENABLE_AUTO_IMPORT:
712
      link_info.pei386_auto_import = 1;
713
      break;
714
    case OPTION_DLL_DISABLE_AUTO_IMPORT:
715
      link_info.pei386_auto_import = 0;
716
      break;
717
    case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
718
      link_info.pei386_runtime_pseudo_reloc = 1;
719
      break;
720
    case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1:
721
      link_info.pei386_runtime_pseudo_reloc = 1;
722
      break;
723
    case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
724
      link_info.pei386_runtime_pseudo_reloc = 2;
725
      break;
726
    case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
727
      link_info.pei386_runtime_pseudo_reloc = 0;
728
      break;
729
    case OPTION_ENABLE_EXTRA_PE_DEBUG:
730
      pe_dll_extra_pe_debug = 1;
731
      break;
732
#endif
733
    case OPTION_LARGE_ADDRESS_AWARE:
734
      real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
735
      break;
736
    case OPTION_ENABLE_LONG_SECTION_NAMES:
737
      pe_use_coff_long_section_names = 1;
738
      break;
739
    case OPTION_DISABLE_LONG_SECTION_NAMES:
740
      pe_use_coff_long_section_names = 0;
741
      break;
742
/*  Get DLLCharacteristics bits  */
743
    case OPTION_DYNAMIC_BASE:
744
      pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
745
      break;
746
    case OPTION_FORCE_INTEGRITY:
747
      pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY;
748
      break;
749
    case OPTION_NX_COMPAT:
750
      pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
751
      break;
752
    case OPTION_NO_ISOLATION:
753
      pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
754
      break;
755
    case OPTION_NO_SEH:
756
      pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH;
757
      break;
758
    case OPTION_NO_BIND:
759
      pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND;
760
      break;
761
    case OPTION_WDM_DRIVER:
762
      pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER;
763
      break;
764
    case OPTION_TERMINAL_SERVER_AWARE:
765
      pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
766
      break;
767
    }
768
 
769
  /*  Set DLLCharacteristics bits  */
770
  set_pe_name ("__dll_characteristics__", pe_dll_characteristics);
771
 
772
  return TRUE;
773
}
774
 
775
 
776
#ifdef DLL_SUPPORT
777
static unsigned long
778
strhash (const char *str)
779
{
780
  const unsigned char *s;
781
  unsigned long hash;
782
  unsigned int c;
783
  unsigned int len;
784
 
785
  hash = 0;
786
  len = 0;
787
  s = (const unsigned char *) str;
788
  while ((c = *s++) != '\0')
789
    {
790
      hash += c + (c << 17);
791
      hash ^= hash >> 2;
792
      ++len;
793
    }
794
  hash += len + (len << 17);
795
  hash ^= hash >> 2;
796
 
797
  return hash;
798
}
799
 
800
/* Use the output file to create a image base for relocatable DLLs.  */
801
 
802
static unsigned long
803
compute_dll_image_base (const char *ofile)
804
{
805
  unsigned long hash = strhash (ofile);
806
  return 0x61300000 + ((hash << 16) & 0x0FFC0000);
807
}
808
#endif
809
 
810
/* Assign values to the special symbols before the linker script is
811
   read.  */
812
 
813
static void
814
gld_${EMULATION_NAME}_set_symbols (void)
815
{
816
  /* Run through and invent symbols for all the
817
     names and insert the defaults.  */
818
  int j;
819
 
820
  if (!init[IMAGEBASEOFF].inited)
821
    {
822
      if (link_info.relocatable)
823
        init[IMAGEBASEOFF].value = 0;
824
      else if (init[DLLOFF].value || (link_info.shared && !link_info.pie))
825
        {
826
#ifdef DLL_SUPPORT
827
          init[IMAGEBASEOFF].value = (pe_enable_auto_image_base
828
                                      ? compute_dll_image_base (output_filename)
829
                                      : NT_DLL_IMAGE_BASE);
830
#else
831
          init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
832
#endif
833
        }
834
      else
835
        init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
836
      init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
837
    }
838
 
839
  /* Don't do any symbol assignments if this is a relocatable link.  */
840
  if (link_info.relocatable)
841
    return;
842
 
843
  /* Glue the assignments into the abs section.  */
844
  push_stat_ptr (&abs_output_section->children);
845
 
846
  for (j = 0; init[j].ptr; j++)
847
    {
848
      long val = init[j].value;
849
      lang_assignment_statement_type *rv;
850
      rv = lang_add_assignment (exp_assop ('=', init[j].symbol,
851
                                           exp_intop (val)));
852
      if (init[j].size == sizeof (short))
853
        *(short *) init[j].ptr = val;
854
      else if (init[j].size == sizeof (int))
855
        *(int *) init[j].ptr = val;
856
      else if (init[j].size == sizeof (long))
857
        *(long *) init[j].ptr = val;
858
      /* This might be a long long or other special type.  */
859
      else if (init[j].size == sizeof (bfd_vma))
860
        *(bfd_vma *) init[j].ptr = val;
861
      else      abort ();
862
      if (j == IMAGEBASEOFF)
863
        image_base_statement = rv;
864
    }
865
  /* Restore the pointer.  */
866
  pop_stat_ptr ();
867
 
868
  if (pe.FileAlignment > pe.SectionAlignment)
869
    {
870
      einfo (_("%P: warning, file alignment > section alignment.\n"));
871
    }
872
}
873
 
874
/* This is called after the linker script and the command line options
875
   have been read.  */
876
 
877
static void
878
gld_${EMULATION_NAME}_after_parse (void)
879
{
880
  /* PR ld/6744:  Warn the user if they have used an ELF-only
881
     option hoping it will work on PE.  */
882
  if (link_info.export_dynamic)
883
    einfo (_("%P: warning: --export-dynamic is not supported for PE "
884
      "targets, did you mean --export-all-symbols?\n"));
885
 
886
  after_parse_default ();
887
}
888
 
889
/* pe-dll.c directly accesses pe_data_import_dll,
890
   so it must be defined outside of #ifdef DLL_SUPPORT.
891
   Note - this variable is deliberately not initialised.
892
   This allows it to be treated as a common varaible, and only
893
   exist in one incarnation in a multiple target enabled linker.  */
894
char * pe_data_import_dll;
895
 
896
#ifdef DLL_SUPPORT
897
static struct bfd_link_hash_entry *pe_undef_found_sym;
898
 
899
static bfd_boolean
900
pe_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
901
{
902
  int sl;
903
  char *string = inf;
904
 
905
  sl = strlen (string);
906
  if (h->type == bfd_link_hash_defined
907
      && strncmp (h->root.string, string, sl) == 0
908
      && h->root.string[sl] == '@')
909
    {
910
      pe_undef_found_sym = h;
911
      return FALSE;
912
    }
913
  return TRUE;
914
}
915
 
916
static void
917
pe_fixup_stdcalls (void)
918
{
919
  static int gave_warning_message = 0;
920
  struct bfd_link_hash_entry *undef, *sym;
921
 
922
  if (pe_dll_extra_pe_debug)
923
    printf ("%s\n", __FUNCTION__);
924
 
925
  for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
926
    if (undef->type == bfd_link_hash_undefined)
927
      {
928
        char* at = strchr (undef->root.string, '@');
929
        int lead_at = (*undef->root.string == '@');
930
        /* For now, don't try to fixup fastcall symbols.  */
931
 
932
        if (at && !lead_at)
933
          {
934
            /* The symbol is a stdcall symbol, so let's look for a
935
               cdecl symbol with the same name and resolve to that.  */
936
            char *cname = xstrdup (undef->root.string /* + lead_at */);
937
            at = strchr (cname, '@');
938
            *at = 0;
939
            sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
940
 
941
            if (sym && sym->type == bfd_link_hash_defined)
942
              {
943
                undef->type = bfd_link_hash_defined;
944
                undef->u.def.value = sym->u.def.value;
945
                undef->u.def.section = sym->u.def.section;
946
 
947
                if (pe_enable_stdcall_fixup == -1)
948
                  {
949
                    einfo (_("Warning: resolving %s by linking to %s\n"),
950
                           undef->root.string, cname);
951
                    if (! gave_warning_message)
952
                      {
953
                        gave_warning_message = 1;
954
                        einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
955
                        einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
956
                      }
957
                  }
958
              }
959
          }
960
        else
961
          {
962
            /* The symbol is a cdecl symbol, so we look for stdcall
963
               symbols - which means scanning the whole symbol table.  */
964
            pe_undef_found_sym = 0;
965
            bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
966
                                    (char *) undef->root.string);
967
            sym = pe_undef_found_sym;
968
            if (sym)
969
              {
970
                undef->type = bfd_link_hash_defined;
971
                undef->u.def.value = sym->u.def.value;
972
                undef->u.def.section = sym->u.def.section;
973
 
974
                if (pe_enable_stdcall_fixup == -1)
975
                  {
976
                    einfo (_("Warning: resolving %s by linking to %s\n"),
977
                           undef->root.string, sym->root.string);
978
                    if (! gave_warning_message)
979
                      {
980
                        gave_warning_message = 1;
981
                        einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
982
                        einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
983
                      }
984
                  }
985
              }
986
          }
987
      }
988
}
989
 
990
static int
991
make_import_fixup (arelent *rel, asection *s)
992
{
993
  struct bfd_symbol *sym = *rel->sym_ptr_ptr;
994
  char addend[4];
995
 
996
  if (pe_dll_extra_pe_debug)
997
    printf ("arelent: %s@%#lx: add=%li\n", sym->name,
998
            (unsigned long) rel->address, (long) rel->addend);
999
 
1000
  if (! bfd_get_section_contents (s->owner, s, addend, rel->address, sizeof (addend)))
1001
    einfo (_("%C: Cannot get section contents - auto-import exception\n"),
1002
           s->owner, s, rel->address);
1003
 
1004
  pe_create_import_fixup (rel, s, bfd_get_32 (s->owner, addend));
1005
 
1006
  return 1;
1007
}
1008
 
1009
static void
1010
pe_find_data_imports (void)
1011
{
1012
  struct bfd_link_hash_entry *undef, *sym;
1013
 
1014
  if (link_info.pei386_auto_import == 0)
1015
    return;
1016
 
1017
  for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
1018
    {
1019
      if (undef->type == bfd_link_hash_undefined)
1020
        {
1021
          /* C++ symbols are *long*.  */
1022
          char buf[4096];
1023
 
1024
          if (pe_dll_extra_pe_debug)
1025
            printf ("%s:%s\n", __FUNCTION__, undef->root.string);
1026
 
1027
          sprintf (buf, "__imp_%s", undef->root.string);
1028
 
1029
          sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
1030
 
1031
          if (sym && sym->type == bfd_link_hash_defined)
1032
            {
1033
              bfd *b = sym->u.def.section->owner;
1034
              asymbol **symbols;
1035
              int nsyms, i;
1036
 
1037
              if (link_info.pei386_auto_import == -1)
1038
                {
1039
                  static bfd_boolean warned = FALSE;
1040
 
1041
                  info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"),
1042
                            undef->root.string, buf);
1043
 
1044
                  /* PR linker/4844.  */
1045
                  if (! warned)
1046
                    {
1047
                      warned = TRUE;
1048
                      einfo (_("%P: warning: auto-importing has been activated without --enable-auto-import specified on the command line.\n\
1049
This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.\n"));
1050
                    }
1051
                }
1052
 
1053
              if (!bfd_generic_link_read_symbols (b))
1054
                {
1055
                  einfo (_("%B%F: could not read symbols: %E\n"), b);
1056
                  return;
1057
                }
1058
 
1059
              symbols = bfd_get_outsymbols (b);
1060
              nsyms = bfd_get_symcount (b);
1061
 
1062
              for (i = 0; i < nsyms; i++)
1063
                {
1064
                  if (! CONST_STRNEQ (symbols[i]->name, U ("_head_")))
1065
                    continue;
1066
 
1067
                  if (pe_dll_extra_pe_debug)
1068
                    printf ("->%s\n", symbols[i]->name);
1069
 
1070
                  pe_data_import_dll = (char*) (symbols[i]->name +
1071
                                                sizeof (U ("_head_")) - 1);
1072
                  break;
1073
                }
1074
 
1075
              pe_walk_relocs_of_symbol (&link_info, undef->root.string,
1076
                                        make_import_fixup);
1077
 
1078
              /* Let's differentiate it somehow from defined.  */
1079
              undef->type = bfd_link_hash_defweak;
1080
              /* We replace original name with __imp_ prefixed, this
1081
                 1) may trash memory 2) leads to duplicate symbol generation.
1082
                 Still, IMHO it's better than having name poluted.  */
1083
              undef->root.string = sym->root.string;
1084
              undef->u.def.value = sym->u.def.value;
1085
              undef->u.def.section = sym->u.def.section;
1086
            }
1087
        }
1088
    }
1089
}
1090
 
1091
static bfd_boolean
1092
pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
1093
{
1094
  if (pe_dll_extra_pe_debug)
1095
    printf ("+%s\n", h->string);
1096
 
1097
  return TRUE;
1098
}
1099
#endif /* DLL_SUPPORT */
1100
 
1101
static void
1102
debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
1103
{
1104
  int *found = (int *) obj;
1105
  if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
1106
    *found = 1;
1107
}
1108
 
1109
static void
1110
gld_${EMULATION_NAME}_after_open (void)
1111
{
1112
#ifdef DLL_SUPPORT
1113
  if (pe_dll_extra_pe_debug)
1114
    {
1115
      bfd *a;
1116
      struct bfd_link_hash_entry *sym;
1117
 
1118
      printf ("%s()\n", __FUNCTION__);
1119
 
1120
      for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1121
        printf ("-%s\n", sym->root.string);
1122
      bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1123
 
1124
      for (a = link_info.input_bfds; a; a = a->link_next)
1125
        printf ("*%s\n",a->filename);
1126
    }
1127
#endif
1128
 
1129
  /* Pass the wacky PE command line options into the output bfd.
1130
     FIXME: This should be done via a function, rather than by
1131
     including an internal BFD header.  */
1132
 
1133
  if (coff_data (link_info.output_bfd) == NULL
1134
      || coff_data (link_info.output_bfd)->pe == 0)
1135
    einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"),
1136
           link_info.output_bfd);
1137
 
1138
  pe_data (link_info.output_bfd)->pe_opthdr = pe;
1139
  pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1140
  pe_data (link_info.output_bfd)->real_flags |= real_flags;
1141
 
1142
  /* At this point we must decide whether to use long section names
1143
     in the output or not.  If the user hasn't explicitly specified
1144
     on the command line, we leave it to the default for the format
1145
     (object files yes, image files no), except if there is debug
1146
     information present; GDB relies on the long section names to
1147
     find it, so enable it in that case.  */
1148
  if (pe_use_coff_long_section_names < 0 && link_info.strip == strip_none)
1149
    {
1150
      /* Iterate over all sections of all input BFDs, checking
1151
         for any that begin 'debug_' and are long names.  */
1152
      LANG_FOR_EACH_INPUT_STATEMENT (is)
1153
        {
1154
          int found_debug = 0;
1155
          bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
1156
          if (found_debug)
1157
            {
1158
              pe_use_coff_long_section_names = 1;
1159
              break;
1160
            }
1161
        }
1162
    }
1163
 
1164
  pe_output_file_set_long_section_names (link_info.output_bfd);
1165
 
1166
#ifdef DLL_SUPPORT
1167
  if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
1168
    pe_fixup_stdcalls ();
1169
 
1170
  pe_process_import_defs (link_info.output_bfd, &link_info);
1171
 
1172
  pe_find_data_imports ();
1173
 
1174
#if defined (TARGET_IS_i386pe) \
1175
    || defined (TARGET_IS_armpe) \
1176
    || defined (TARGET_IS_arm_epoc_pe) \
1177
    || defined (TARGET_IS_arm_wince_pe)
1178
  if (!link_info.relocatable)
1179
    pe_dll_build_sections (link_info.output_bfd, &link_info);
1180
#else
1181
  if (link_info.shared)
1182
    pe_dll_build_sections (link_info.output_bfd, &link_info);
1183
  else
1184
    pe_exe_build_sections (link_info.output_bfd, &link_info);
1185
#endif
1186
#endif /* DLL_SUPPORT */
1187
 
1188
#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1189
  if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
1190
    {
1191
      /* The arm backend needs special fields in the output hash structure.
1192
         These will only be created if the output format is an arm format,
1193
         hence we do not support linking and changing output formats at the
1194
         same time.  Use a link followed by objcopy to change output formats.  */
1195
      einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
1196
      return;
1197
    }
1198
  {
1199
    /* Find a BFD that can hold the interworking stubs.  */
1200
    LANG_FOR_EACH_INPUT_STATEMENT (is)
1201
      {
1202
        if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
1203
          break;
1204
      }
1205
  }
1206
#endif
1207
 
1208
  {
1209
    /* This next chunk of code tries to detect the case where you have
1210
       two import libraries for the same DLL (specifically,
1211
       symbolically linking libm.a and libc.a in cygwin to
1212
       libcygwin.a).  In those cases, it's possible for function
1213
       thunks from the second implib to be used but without the
1214
       head/tail objects, causing an improper import table.  We detect
1215
       those cases and rename the "other" import libraries to match
1216
       the one the head/tail come from, so that the linker will sort
1217
       things nicely and produce a valid import table.  */
1218
 
1219
    LANG_FOR_EACH_INPUT_STATEMENT (is)
1220
      {
1221
        if (is->the_bfd->my_archive)
1222
          {
1223
            int idata2 = 0, reloc_count=0, is_imp = 0;
1224
            asection *sec;
1225
 
1226
            /* See if this is an import library thunk.  */
1227
            for (sec = is->the_bfd->sections; sec; sec = sec->next)
1228
              {
1229
                if (strcmp (sec->name, ".idata\$2") == 0)
1230
                  idata2 = 1;
1231
                if (CONST_STRNEQ (sec->name, ".idata\$"))
1232
                  is_imp = 1;
1233
                reloc_count += sec->reloc_count;
1234
              }
1235
 
1236
            if (is_imp && !idata2 && reloc_count)
1237
              {
1238
                /* It is, look for the reference to head and see if it's
1239
                   from our own library.  */
1240
                for (sec = is->the_bfd->sections; sec; sec = sec->next)
1241
                  {
1242
                    int i;
1243
                    long relsize;
1244
                    asymbol **symbols;
1245
                    arelent **relocs;
1246
                    int nrelocs;
1247
 
1248
                    relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1249
                    if (relsize < 1)
1250
                      break;
1251
 
1252
                    if (!bfd_generic_link_read_symbols (is->the_bfd))
1253
                      {
1254
                        einfo (_("%B%F: could not read symbols: %E\n"),
1255
                               is->the_bfd);
1256
                        return;
1257
                      }
1258
                    symbols = bfd_get_outsymbols (is->the_bfd);
1259
 
1260
                    relocs = xmalloc ((size_t) relsize);
1261
                    nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1262
                                                      relocs, symbols);
1263
                    if (nrelocs < 0)
1264
                      {
1265
                        free (relocs);
1266
                        einfo ("%X%P: unable to process relocs: %E\n");
1267
                        return;
1268
                      }
1269
 
1270
                    for (i = 0; i < nrelocs; i++)
1271
                      {
1272
                        struct bfd_symbol *s;
1273
                        struct bfd_link_hash_entry * blhe;
1274
                        char *other_bfd_filename;
1275
                        char *n;
1276
 
1277
                        s = (relocs[i]->sym_ptr_ptr)[0];
1278
 
1279
                        if (s->flags & BSF_LOCAL)
1280
                          continue;
1281
 
1282
                        /* Thunk section with reloc to another bfd.  */
1283
                        blhe = bfd_link_hash_lookup (link_info.hash,
1284
                                                     s->name,
1285
                                                     FALSE, FALSE, TRUE);
1286
 
1287
                        if (blhe == NULL
1288
                            || blhe->type != bfd_link_hash_defined)
1289
                          continue;
1290
 
1291
                        other_bfd_filename
1292
                          = blhe->u.def.section->owner->my_archive
1293
                            ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1294
                            : bfd_get_filename (blhe->u.def.section->owner);
1295
 
1296
                        if (strcmp (bfd_get_filename (is->the_bfd->my_archive),
1297
                                    other_bfd_filename) == 0)
1298
                          continue;
1299
 
1300
                        /* Rename this implib to match the other one.  */
1301
                        n = xmalloc (strlen (other_bfd_filename) + 1);
1302
                        strcpy (n, other_bfd_filename);
1303
                        is->the_bfd->my_archive->filename = n;
1304
                      }
1305
 
1306
                    free (relocs);
1307
                    /* Note - we do not free the symbols,
1308
                       they are now cached in the BFD.  */
1309
                  }
1310
              }
1311
          }
1312
      }
1313
  }
1314
 
1315
  {
1316
    int is_ms_arch = 0;
1317
    bfd *cur_arch = 0;
1318
    lang_input_statement_type *is2;
1319
    lang_input_statement_type *is3;
1320
 
1321
    /* Careful - this is a shell script.  Watch those dollar signs! */
1322
    /* Microsoft import libraries have every member named the same,
1323
       and not in the right order for us to link them correctly.  We
1324
       must detect these and rename the members so that they'll link
1325
       correctly.  There are three types of objects: the head, the
1326
       thunks, and the sentinel(s).  The head is easy; it's the one
1327
       with idata2.  We assume that the sentinels won't have relocs,
1328
       and the thunks will.  It's easier than checking the symbol
1329
       table for external references.  */
1330
    LANG_FOR_EACH_INPUT_STATEMENT (is)
1331
      {
1332
        if (is->the_bfd->my_archive)
1333
          {
1334
            char *pnt;
1335
            bfd *arch = is->the_bfd->my_archive;
1336
 
1337
            if (cur_arch != arch)
1338
              {
1339
                cur_arch = arch;
1340
                is_ms_arch = 1;
1341
 
1342
                for (is3 = is;
1343
                     is3 && is3->the_bfd->my_archive == arch;
1344
                     is3 = (lang_input_statement_type *) is3->next)
1345
                  {
1346
                    /* A MS dynamic import library can also contain static
1347
                       members, so look for the first element with a .dll
1348
                       extension, and use that for the remainder of the
1349
                       comparisons.  */
1350
                    pnt = strrchr (is3->the_bfd->filename, '.');
1351
                    if (pnt != NULL && strcmp (pnt, ".dll") == 0)
1352
                      break;
1353
                  }
1354
 
1355
                if (is3 == NULL)
1356
                  is_ms_arch = 0;
1357
                else
1358
                  {
1359
                    /* OK, found one.  Now look to see if the remaining
1360
                       (dynamic import) members use the same name.  */
1361
                    for (is2 = is;
1362
                         is2 && is2->the_bfd->my_archive == arch;
1363
                         is2 = (lang_input_statement_type *) is2->next)
1364
                      {
1365
                        /* Skip static members, ie anything with a .obj
1366
                           extension.  */
1367
                        pnt = strrchr (is2->the_bfd->filename, '.');
1368
                        if (pnt != NULL && strcmp (pnt, ".obj") == 0)
1369
                          continue;
1370
 
1371
                        if (strcmp (is3->the_bfd->filename,
1372
                                    is2->the_bfd->filename))
1373
                          {
1374
                            is_ms_arch = 0;
1375
                            break;
1376
                          }
1377
                      }
1378
                  }
1379
              }
1380
 
1381
            /* This fragment might have come from an .obj file in a Microsoft
1382
               import, and not an actual import record. If this is the case,
1383
               then leave the filename alone.  */
1384
            pnt = strrchr (is->the_bfd->filename, '.');
1385
 
1386
            if (is_ms_arch && (strcmp (pnt, ".dll") == 0))
1387
              {
1388
                int idata2 = 0, reloc_count=0;
1389
                asection *sec;
1390
                char *new_name, seq;
1391
 
1392
                for (sec = is->the_bfd->sections; sec; sec = sec->next)
1393
                  {
1394
                    if (strcmp (sec->name, ".idata\$2") == 0)
1395
                      idata2 = 1;
1396
                    reloc_count += sec->reloc_count;
1397
                  }
1398
 
1399
                if (idata2) /* .idata2 is the TOC */
1400
                  seq = 'a';
1401
                else if (reloc_count > 0) /* thunks */
1402
                  seq = 'b';
1403
                else /* sentinel */
1404
                  seq = 'c';
1405
 
1406
                new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1407
                sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1408
                is->the_bfd->filename = new_name;
1409
 
1410
                new_name = xmalloc (strlen (is->filename) + 3);
1411
                sprintf (new_name, "%s.%c", is->filename, seq);
1412
                is->filename = new_name;
1413
              }
1414
          }
1415
      }
1416
  }
1417
 
1418
  {
1419
    /* The following chunk of code tries to identify jump stubs in
1420
       import libraries which are dead code and eliminates them
1421
       from the final link. For each exported symbol , there
1422
       is a object file in the import library with a .text section
1423
       and several .idata\$* sections. The .text section contains the
1424
       symbol definition for  which is a jump stub of the form
1425
       jmp *__imp_. The .idata\$5 contains the symbol definition
1426
       for __imp_ which is the address of the slot for  in
1427
       the import address table. When a symbol is imported explicitly
1428
       using __declspec(dllimport) declaration, the compiler generates
1429
       a reference to __imp_ which directly resolves to the
1430
       symbol in .idata\$5, in which case the jump stub code is not
1431
       needed. The following code tries to identify jump stub sections
1432
       in import libraries which are not referred to by anyone and
1433
       marks them for exclusion from the final link.  */
1434
    LANG_FOR_EACH_INPUT_STATEMENT (is)
1435
      {
1436
        if (is->the_bfd->my_archive)
1437
          {
1438
            int is_imp = 0;
1439
            asection *sec, *stub_sec = NULL;
1440
 
1441
            /* See if this is an import library thunk.  */
1442
            for (sec = is->the_bfd->sections; sec; sec = sec->next)
1443
              {
1444
                if (strncmp (sec->name, ".idata\$", 7) == 0)
1445
                  is_imp = 1;
1446
                /* The section containing the jmp stub has code
1447
                   and has a reloc.  */
1448
                if ((sec->flags & SEC_CODE) && sec->reloc_count)
1449
                  stub_sec = sec;
1450
              }
1451
 
1452
            if (is_imp && stub_sec)
1453
              {
1454
                asymbol **symbols;
1455
                long nsyms, src_count;
1456
                struct bfd_link_hash_entry * blhe;
1457
 
1458
                if (!bfd_generic_link_read_symbols (is->the_bfd))
1459
                  {
1460
                    einfo (_("%B%F: could not read symbols: %E\n"),
1461
                           is->the_bfd);
1462
                    return;
1463
                  }
1464
                symbols = bfd_get_outsymbols (is->the_bfd);
1465
                nsyms = bfd_get_symcount (is->the_bfd);
1466
 
1467
                for (src_count = 0; src_count < nsyms; src_count++)
1468
                  {
1469
                    if (symbols[src_count]->section->id == stub_sec->id)
1470
                      {
1471
                        /* This symbol belongs to the section containing
1472
                           the stub.  */
1473
                        blhe = bfd_link_hash_lookup (link_info.hash,
1474
                                                     symbols[src_count]->name,
1475
                                                     FALSE, FALSE, TRUE);
1476
                        /* If the symbol in the stub section has no other
1477
                           undefined references, exclude the stub section
1478
                           from the final link.  */
1479
                        if (blhe && (blhe->type == bfd_link_hash_defined)
1480
                            && (blhe->u.undef.next == NULL))
1481
                          stub_sec->flags |= SEC_EXCLUDE;
1482
                      }
1483
                  }
1484
              }
1485
          }
1486
      }
1487
  }
1488
}
1489
 
1490
static void
1491
gld_${EMULATION_NAME}_before_allocation (void)
1492
{
1493
#ifdef TARGET_IS_ppcpe
1494
  /* Here we rummage through the found bfds to collect toc information.  */
1495
  {
1496
    LANG_FOR_EACH_INPUT_STATEMENT (is)
1497
      {
1498
        if (!ppc_process_before_allocation (is->the_bfd, &link_info))
1499
          {
1500
            /* xgettext:c-format */
1501
            einfo (_("Errors encountered processing file %s\n"), is->filename);
1502
          }
1503
      }
1504
  }
1505
 
1506
  /* We have seen it all. Allocate it, and carry on.  */
1507
  ppc_allocate_toc_section (&link_info);
1508
#endif /* TARGET_IS_ppcpe */
1509
 
1510
#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1511
  /* FIXME: we should be able to set the size of the interworking stub
1512
     section.
1513
 
1514
     Here we rummage through the found bfds to collect glue
1515
     information.  FIXME: should this be based on a command line
1516
     option?  krk@cygnus.com.  */
1517
  {
1518
    LANG_FOR_EACH_INPUT_STATEMENT (is)
1519
      {
1520
        if (! bfd_arm_process_before_allocation
1521
            (is->the_bfd, & link_info, support_old_code))
1522
          {
1523
            /* xgettext:c-format */
1524
            einfo (_("Errors encountered processing file %s for interworking\n"),
1525
                   is->filename);
1526
          }
1527
      }
1528
  }
1529
 
1530
  /* We have seen it all. Allocate it, and carry on.  */
1531
  bfd_arm_allocate_interworking_sections (& link_info);
1532
#endif /* TARGET_IS_armpe || TARGET_IS_arm_epoc_pe || TARGET_IS_arm_wince_pe */
1533
 
1534
  before_allocation_default ();
1535
}
1536
 
1537
#ifdef DLL_SUPPORT
1538
/* This is called when an input file isn't recognized as a BFD.  We
1539
   check here for .DEF files and pull them in automatically.  */
1540
 
1541
static int
1542
saw_option (char *option)
1543
{
1544
  int i;
1545
 
1546
  for (i = 0; init[i].ptr; i++)
1547
    if (strcmp (init[i].symbol, option) == 0)
1548
      return init[i].inited;
1549
  return 0;
1550
}
1551
#endif /* DLL_SUPPORT */
1552
 
1553
static bfd_boolean
1554
gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1555
{
1556
#ifdef DLL_SUPPORT
1557
  const char *ext = entry->filename + strlen (entry->filename) - 4;
1558
 
1559
  if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0)
1560
    {
1561
      pe_def_file = def_file_parse (entry->filename, pe_def_file);
1562
 
1563
      if (pe_def_file)
1564
        {
1565
          int i, buflen=0, len;
1566
          char *buf;
1567
 
1568
          for (i = 0; i < pe_def_file->num_exports; i++)
1569
            {
1570
              len = strlen (pe_def_file->exports[i].internal_name);
1571
              if (buflen < len + 2)
1572
                buflen = len + 2;
1573
            }
1574
 
1575
          buf = xmalloc (buflen);
1576
 
1577
          for (i = 0; i < pe_def_file->num_exports; i++)
1578
            {
1579
              struct bfd_link_hash_entry *h;
1580
 
1581
              sprintf (buf, "%s%s", U (""), pe_def_file->exports[i].internal_name);
1582
 
1583
              h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1584
              if (h == (struct bfd_link_hash_entry *) NULL)
1585
                einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1586
              if (h->type == bfd_link_hash_new)
1587
                {
1588
                  h->type = bfd_link_hash_undefined;
1589
                  h->u.undef.abfd = NULL;
1590
                  bfd_link_add_undef (link_info.hash, h);
1591
                }
1592
            }
1593
          free (buf);
1594
 
1595
          /* def_file_print (stdout, pe_def_file); */
1596
          if (pe_def_file->is_dll == 1)
1597
            link_info.shared = 1;
1598
 
1599
          if (pe_def_file->base_address != (bfd_vma)(-1))
1600
            {
1601
              pe.ImageBase
1602
                = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1603
                = init[IMAGEBASEOFF].value
1604
                = pe_def_file->base_address;
1605
              init[IMAGEBASEOFF].inited = 1;
1606
              if (image_base_statement)
1607
                image_base_statement->exp = exp_assop ('=', "__image_base__",
1608
                                                       exp_intop (pe.ImageBase));
1609
            }
1610
 
1611
          if (pe_def_file->stack_reserve != -1
1612
              && ! saw_option ("__size_of_stack_reserve__"))
1613
            {
1614
              pe.SizeOfStackReserve = pe_def_file->stack_reserve;
1615
              if (pe_def_file->stack_commit != -1)
1616
                pe.SizeOfStackCommit = pe_def_file->stack_commit;
1617
            }
1618
          if (pe_def_file->heap_reserve != -1
1619
              && ! saw_option ("__size_of_heap_reserve__"))
1620
            {
1621
              pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
1622
              if (pe_def_file->heap_commit != -1)
1623
                pe.SizeOfHeapCommit = pe_def_file->heap_commit;
1624
            }
1625
          return TRUE;
1626
        }
1627
    }
1628
#endif
1629
  return FALSE;
1630
}
1631
 
1632
static bfd_boolean
1633
gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1634
{
1635
#ifdef DLL_SUPPORT
1636
#ifdef TARGET_IS_i386pe
1637
  pe_dll_id_target ("pei-i386");
1638
#endif
1639
#ifdef TARGET_IS_shpe
1640
  pe_dll_id_target ("pei-shl");
1641
#endif
1642
#ifdef TARGET_IS_mipspe
1643
  pe_dll_id_target ("pei-mips");
1644
#endif
1645
#ifdef TARGET_IS_armpe
1646
  pe_dll_id_target ("pei-arm-little");
1647
#endif
1648
#ifdef TARGET_IS_arm_epoc_pe
1649
  pe_dll_id_target ("epoc-pei-arm-little");
1650
#endif
1651
#ifdef TARGET_IS_arm_wince_pe
1652
  pe_dll_id_target ("pei-arm-wince-little");
1653
#endif
1654
  if (pe_bfd_is_dll (entry->the_bfd))
1655
    return pe_implied_import_dll (entry->filename);
1656
#endif
1657
  return FALSE;
1658
}
1659
 
1660
static void
1661
gld_${EMULATION_NAME}_finish (void)
1662
{
1663
#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1664
  struct bfd_link_hash_entry * h;
1665
 
1666
  if (thumb_entry_symbol != NULL)
1667
    {
1668
      h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
1669
                                FALSE, FALSE, TRUE);
1670
 
1671
      if (h != (struct bfd_link_hash_entry *) NULL
1672
          && (h->type == bfd_link_hash_defined
1673
              || h->type == bfd_link_hash_defweak)
1674
          && h->u.def.section->output_section != NULL)
1675
        {
1676
          static char buffer[32];
1677
          bfd_vma val;
1678
 
1679
          /* Special procesing is required for a Thumb entry symbol.  The
1680
             bottom bit of its address must be set.  */
1681
          val = (h->u.def.value
1682
                 + bfd_get_section_vma (link_info.output_bfd,
1683
                                        h->u.def.section->output_section)
1684
                 + h->u.def.section->output_offset);
1685
 
1686
          val |= 1;
1687
 
1688
          /* Now convert this value into a string and store it in entry_symbol
1689
             where the lang_finish() function will pick it up.  */
1690
          buffer[0] = '0';
1691
          buffer[1] = 'x';
1692
 
1693
          sprintf_vma (buffer + 2, val);
1694
 
1695
          if (entry_symbol.name != NULL && entry_from_cmdline)
1696
            einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
1697
                   thumb_entry_symbol, entry_symbol.name);
1698
          entry_symbol.name = buffer;
1699
        }
1700
      else
1701
        einfo (_("%P: warning: cannot find thumb start symbol %s\n"), thumb_entry_symbol);
1702
    }
1703
#endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) */
1704
 
1705
  finish_default ();
1706
 
1707
#ifdef DLL_SUPPORT
1708
  if (link_info.shared
1709
#if !defined(TARGET_IS_shpe) && !defined(TARGET_IS_mipspe)
1710
      || (!link_info.relocatable && pe_def_file->num_exports != 0)
1711
#endif
1712
    )
1713
    {
1714
      pe_dll_fill_sections (link_info.output_bfd, &link_info);
1715
      if (pe_implib_filename)
1716
        pe_dll_generate_implib (pe_def_file, pe_implib_filename, &link_info);
1717
    }
1718
#if defined(TARGET_IS_shpe) || defined(TARGET_IS_mipspe)
1719
  /* ARM doesn't need relocs.  */
1720
  else
1721
    {
1722
      pe_exe_fill_sections (link_info.output_bfd, &link_info);
1723
    }
1724
#endif
1725
 
1726
  if (pe_out_def_filename)
1727
    pe_dll_generate_def_file (pe_out_def_filename);
1728
#endif /* DLL_SUPPORT */
1729
 
1730
  /* I don't know where .idata gets set as code, but it shouldn't be.  */
1731
  {
1732
    asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
1733
 
1734
    if (asec)
1735
      {
1736
        asec->flags &= ~SEC_CODE;
1737
        asec->flags |= SEC_DATA;
1738
      }
1739
  }
1740
}
1741
 
1742
 
1743
/* Place an orphan section.
1744
 
1745
   We use this to put sections in a reasonable place in the file, and
1746
   to ensure that they are aligned as required.
1747
 
1748
   We handle grouped sections here as well.  A section named .foo\$nn
1749
   goes into the output section .foo.  All grouped sections are sorted
1750
   by name.
1751
 
1752
   Grouped sections for the default sections are handled by the
1753
   default linker script using wildcards, and are sorted by
1754
   sort_sections.  */
1755
 
1756
static lang_output_section_statement_type *
1757
gld_${EMULATION_NAME}_place_orphan (asection *s,
1758
                                    const char *secname,
1759
                                    int constraint)
1760
{
1761
  const char *orig_secname = secname;
1762
  char *dollar = NULL;
1763
  lang_output_section_statement_type *os;
1764
  lang_statement_list_type add_child;
1765
  lang_statement_union_type **pl;
1766
 
1767
  /* Look through the script to see where to place this section.  */
1768
  if (!link_info.relocatable
1769
      && (dollar = strchr (secname, '\$')) != NULL)
1770
    {
1771
      size_t len = dollar - secname;
1772
      char *newname = xmalloc (len + 1);
1773
      memcpy (newname, secname, len);
1774
      newname[len] = '\0';
1775
      secname = newname;
1776
    }
1777
 
1778
  lang_list_init (&add_child);
1779
 
1780
  os = NULL;
1781
  if (constraint == 0)
1782
    for (os = lang_output_section_find (secname);
1783
         os != NULL;
1784
         os = next_matching_output_section_statement (os, 0))
1785
      {
1786
        /* If we don't match an existing output section, tell
1787
           lang_insert_orphan to create a new output section.  */
1788
        constraint = SPECIAL;
1789
 
1790
        if (os->bfd_section != NULL
1791
            && (os->bfd_section->flags == 0
1792
                || ((s->flags ^ os->bfd_section->flags)
1793
                    & (SEC_LOAD | SEC_ALLOC)) == 0))
1794
          {
1795
            /* We already have an output section statement with this
1796
               name, and its bfd section has compatible flags.
1797
               If the section already exists but does not have any flags set,
1798
               then it has been created by the linker, probably as a result of
1799
               a --section-start command line switch.  */
1800
            lang_add_section (&add_child, s, os);
1801
            break;
1802
          }
1803
      }
1804
 
1805
  if (os == NULL)
1806
    {
1807
      static struct orphan_save hold[] =
1808
        {
1809
          { ".text",
1810
            SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1811
            0, 0, 0, 0 },
1812
          { ".rdata",
1813
            SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1814
            0, 0, 0, 0 },
1815
          { ".data",
1816
            SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1817
            0, 0, 0, 0 },
1818
          { ".bss",
1819
            SEC_ALLOC,
1820
            0, 0, 0, 0 }
1821
        };
1822
      enum orphan_save_index
1823
        {
1824
          orphan_text = 0,
1825
          orphan_rodata,
1826
          orphan_data,
1827
          orphan_bss
1828
        };
1829
      static int orphan_init_done = 0;
1830
      struct orphan_save *place;
1831
      lang_output_section_statement_type *after;
1832
      etree_type *address;
1833
 
1834
      if (!orphan_init_done)
1835
        {
1836
          struct orphan_save *ho;
1837
          for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1838
            if (ho->name != NULL)
1839
              {
1840
                ho->os = lang_output_section_find (ho->name);
1841
                if (ho->os != NULL && ho->os->flags == 0)
1842
                  ho->os->flags = ho->flags;
1843
              }
1844
          orphan_init_done = 1;
1845
        }
1846
 
1847
      /* Try to put the new output section in a reasonable place based
1848
         on the section name and section flags.  */
1849
 
1850
      place = NULL;
1851
      if ((s->flags & SEC_ALLOC) == 0)
1852
        ;
1853
      else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
1854
        place = &hold[orphan_bss];
1855
      else if ((s->flags & SEC_READONLY) == 0)
1856
        place = &hold[orphan_data];
1857
      else if ((s->flags & SEC_CODE) == 0)
1858
        place = &hold[orphan_rodata];
1859
      else
1860
        place = &hold[orphan_text];
1861
 
1862
      after = NULL;
1863
      if (place != NULL)
1864
        {
1865
          if (place->os == NULL)
1866
            place->os = lang_output_section_find (place->name);
1867
          after = place->os;
1868
          if (after == NULL)
1869
            after = lang_output_section_find_by_flags (s, &place->os, NULL);
1870
          if (after == NULL)
1871
            /* *ABS* is always the first output section statement.  */
1872
            after = (&lang_output_section_statement.head
1873
                     ->output_section_statement);
1874
        }
1875
 
1876
      /* All sections in an executable must be aligned to a page boundary.  */
1877
      address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
1878
      os = lang_insert_orphan (s, secname, constraint, after, place, address,
1879
                               &add_child);
1880
    }
1881
 
1882
  /* If the section name has a '\$', sort it with the other '\$'
1883
     sections.  */
1884
  for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next)
1885
    {
1886
      lang_input_section_type *ls;
1887
      const char *lname;
1888
 
1889
      if ((*pl)->header.type != lang_input_section_enum)
1890
        continue;
1891
 
1892
      ls = &(*pl)->input_section;
1893
 
1894
      lname = bfd_get_section_name (ls->section->owner, ls->section);
1895
      if (strchr (lname, '\$') != NULL
1896
          && (dollar == NULL || strcmp (orig_secname, lname) < 0))
1897
        break;
1898
    }
1899
 
1900
  if (add_child.head != NULL)
1901
    {
1902
      *add_child.tail = *pl;
1903
      *pl = add_child.head;
1904
    }
1905
 
1906
  return os;
1907
}
1908
 
1909
static bfd_boolean
1910
gld_${EMULATION_NAME}_open_dynamic_archive
1911
  (const char *arch ATTRIBUTE_UNUSED,
1912
   search_dirs_type *search,
1913
   lang_input_statement_type *entry)
1914
{
1915
  static const struct
1916
    {
1917
      const char * format;
1918
      bfd_boolean use_prefix;
1919
    }
1920
  libname_fmt [] =
1921
    {
1922
      /* Preferred explicit import library for dll's.  */
1923
      { "lib%s.dll.a", FALSE },
1924
      /* Alternate explicit import library for dll's.  */
1925
      { "%s.dll.a", FALSE },
1926
      /* "libfoo.a" could be either an import lib or a static lib.
1927
          For backwards compatibility, libfoo.a needs to precede
1928
          libfoo.dll and foo.dll in the search.  */
1929
      { "lib%s.a", FALSE },
1930
      /* The 'native' spelling of an import lib name is "foo.lib".  */
1931
      { "%s.lib", FALSE },
1932
#ifdef DLL_SUPPORT
1933
      /* Try "foo.dll" (preferred dll name, if specified).  */
1934
      { "%s%s.dll", TRUE },
1935
#endif
1936
      /* Try "libfoo.dll" (default preferred dll name).  */
1937
      { "lib%s.dll", FALSE },
1938
      /* Finally try 'native' dll name "foo.dll".  */
1939
      {  "%s.dll", FALSE },
1940
      /* Note: If adding more formats to this table, make sure to check to
1941
         see if their length is longer than libname_fmt[0].format, and if
1942
         so, update the call to xmalloc() below.  */
1943
      { NULL, FALSE }
1944
    };
1945
  static unsigned int format_max_len = 0;
1946
  const char * filename;
1947
  char * full_string;
1948
  char * base_string;
1949
  unsigned int i;
1950
 
1951
 
1952
  if (! entry->is_archive)
1953
    return FALSE;
1954
 
1955
  filename = entry->filename;
1956
 
1957
  if (format_max_len == 0)
1958
    /* We need to allow space in the memory that we are going to allocate
1959
       for the characters in the format string.  Since the format array is
1960
       static we only need to calculate this information once.  In theory
1961
       this value could also be computed statically, but this introduces
1962
       the possibility for a discrepancy and hence a possible memory
1963
       corruption.  The lengths we compute here will be too long because
1964
       they will include any formating characters (%s) in the strings, but
1965
       this will not matter.  */
1966
    for (i = 0; libname_fmt[i].format; i++)
1967
      if (format_max_len < strlen (libname_fmt[i].format))
1968
        format_max_len = strlen (libname_fmt[i].format);
1969
 
1970
  full_string = xmalloc (strlen (search->name)
1971
                         + strlen (filename)
1972
                         + format_max_len
1973
#ifdef DLL_SUPPORT
1974
                         + (pe_dll_search_prefix
1975
                            ? strlen (pe_dll_search_prefix) : 0)
1976
#endif
1977
                         /* Allow for the terminating NUL and for the path
1978
                            separator character that is inserted between
1979
                            search->name and the start of the format string.  */
1980
                         + 2);
1981
 
1982
  sprintf (full_string, "%s/", search->name);
1983
  base_string = full_string + strlen (full_string);
1984
 
1985
  for (i = 0; libname_fmt[i].format; i++)
1986
    {
1987
#ifdef DLL_SUPPORT
1988
      if (libname_fmt[i].use_prefix)
1989
        {
1990
          if (!pe_dll_search_prefix)
1991
            continue;
1992
          sprintf (base_string, libname_fmt[i].format, pe_dll_search_prefix, filename);
1993
        }
1994
      else
1995
#endif
1996
        sprintf (base_string, libname_fmt[i].format, filename);
1997
 
1998
      if (ldfile_try_open_bfd (full_string, entry))
1999
        break;
2000
    }
2001
 
2002
  if (!libname_fmt[i].format)
2003
    {
2004
      free (full_string);
2005
      return FALSE;
2006
    }
2007
 
2008
  entry->filename = full_string;
2009
 
2010
  return TRUE;
2011
}
2012
 
2013
static int
2014
gld_${EMULATION_NAME}_find_potential_libraries
2015
  (char *name, lang_input_statement_type *entry)
2016
{
2017
  return ldfile_open_file_search (name, entry, "", ".lib");
2018
}
2019
 
2020
static char *
2021
gld_${EMULATION_NAME}_get_script (int *isfile)
2022
EOF
2023
# Scripts compiled in.
2024
# sed commands to quote an ld script as a C string.
2025
sc="-f stringify.sed"
2026
 
2027
fragment <
2028
{
2029
  *isfile = 0;
2030
 
2031
  if (link_info.relocatable && config.build_constructors)
2032
    return
2033
EOF
2034
sed $sc ldscripts/${EMULATION_NAME}.xu                  >> e${EMULATION_NAME}.c
2035
echo '  ; else if (link_info.relocatable) return'       >> e${EMULATION_NAME}.c
2036
sed $sc ldscripts/${EMULATION_NAME}.xr                  >> e${EMULATION_NAME}.c
2037
echo '  ; else if (!config.text_read_only) return'      >> e${EMULATION_NAME}.c
2038
sed $sc ldscripts/${EMULATION_NAME}.xbn                 >> e${EMULATION_NAME}.c
2039
echo '  ; else if (!config.magic_demand_paged) return'  >> e${EMULATION_NAME}.c
2040
sed $sc ldscripts/${EMULATION_NAME}.xn                  >> e${EMULATION_NAME}.c
2041
if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
2042
echo '  ; else if (link_info.pei386_auto_import == 1) return'   >> e${EMULATION_NAME}.c
2043
sed $sc ldscripts/${EMULATION_NAME}.xa                  >> e${EMULATION_NAME}.c
2044
fi
2045
echo '  ; else return'                                  >> e${EMULATION_NAME}.c
2046
sed $sc ldscripts/${EMULATION_NAME}.x                   >> e${EMULATION_NAME}.c
2047
echo '; }'                                              >> e${EMULATION_NAME}.c
2048
 
2049
fragment <
2050
 
2051
 
2052
struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
2053
{
2054
  gld_${EMULATION_NAME}_before_parse,
2055
  syslib_default,
2056
  hll_default,
2057
  gld_${EMULATION_NAME}_after_parse,
2058
  gld_${EMULATION_NAME}_after_open,
2059
  after_allocation_default,
2060
  set_output_arch_default,
2061
  ldemul_default_target,
2062
  gld_${EMULATION_NAME}_before_allocation,
2063
  gld_${EMULATION_NAME}_get_script,
2064
  "${EMULATION_NAME}",
2065
  "${OUTPUT_FORMAT}",
2066
  gld_${EMULATION_NAME}_finish,
2067
  NULL, /* Create output section statements.  */
2068
  gld_${EMULATION_NAME}_open_dynamic_archive,
2069
  gld_${EMULATION_NAME}_place_orphan,
2070
  gld_${EMULATION_NAME}_set_symbols,
2071
  NULL, /* parse_args */
2072
  gld${EMULATION_NAME}_add_options,
2073
  gld${EMULATION_NAME}_handle_option,
2074
  gld_${EMULATION_NAME}_unrecognized_file,
2075
  gld_${EMULATION_NAME}_list_options,
2076
  gld_${EMULATION_NAME}_recognized_file,
2077
  gld_${EMULATION_NAME}_find_potential_libraries,
2078
  NULL  /* new_vers_pattern.  */
2079
};
2080
EOF

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