OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-old/] [binutils-2.18.50/] [ld/] [emultempl/] [pe.em] - Blame information for rev 853

Go to most recent revision | Details | Compare with Previous | View Log

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

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.