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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [ld/] [emultempl/] [aix.em] - Blame information for rev 163

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1 145 khays
# This shell script emits a C file. -*- C -*-
2
# It does some substitutions.
3
if [ -z "$MACHINE" ]; then
4
  OUTPUT_ARCH=${ARCH}
5
else
6
  OUTPUT_ARCH=${ARCH}:${MACHINE}
7
fi
8
fragment <
9
/* This file is is generated by a shell script.  DO NOT EDIT! */
10
 
11
/* AIX emulation code for ${EMULATION_NAME}
12
   Copyright 1991, 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
13
   2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
14
   Free Software Foundation, Inc.
15
   Written by Steve Chamberlain 
16
   AIX support by Ian Lance Taylor 
17
   AIX 64 bit support by Tom Rix 
18
 
19
   This file is part of the GNU Binutils.
20
 
21
   This program is free software; you can redistribute it and/or modify
22
   it under the terms of the GNU General Public License as published by
23
   the Free Software Foundation; either version 3 of the License, or
24
   (at your option) any later version.
25
 
26
   This program is distributed in the hope that it will be useful,
27
   but WITHOUT ANY WARRANTY; without even the implied warranty of
28
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
29
   GNU General Public License for more details.
30
 
31
   You should have received a copy of the GNU General Public License
32
   along with this program; if not, write to the Free Software
33
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
34
   MA 02110-1301, USA.  */
35
 
36
#define TARGET_IS_${EMULATION_NAME}
37
 
38
#include "sysdep.h"
39
#include "bfd.h"
40
#include "libiberty.h"
41
#include "safe-ctype.h"
42
#include "getopt.h"
43
#include "obstack.h"
44
#include "bfdlink.h"
45
 
46
#include "ld.h"
47
#include "ldmain.h"
48
#include "ldmisc.h"
49
#include "ldexp.h"
50
#include "ldlang.h"
51
#include "ldfile.h"
52
#include "ldemul.h"
53
#include "ldctor.h"
54
#include 
55
 
56
#include "coff/internal.h"
57
#include "coff/xcoff.h"
58
#include "libcoff.h"
59
#include "libxcoff.h"
60
 
61
static void gld${EMULATION_NAME}_read_file (const char *, bfd_boolean);
62
static void gld${EMULATION_NAME}_free (void *);
63
static void gld${EMULATION_NAME}_find_relocs (lang_statement_union_type *);
64
static void gld${EMULATION_NAME}_find_exp_assignment (etree_type *);
65
 
66
 
67
/* The file alignment required for each section.  */
68
static unsigned long file_align;
69
 
70
/* The maximum size the stack is permitted to grow.  This is stored in
71
   the a.out header.  */
72
static unsigned long maxstack;
73
 
74
/* The maximum data size.  This is stored in the a.out header.  */
75
static unsigned long maxdata;
76
 
77
/* Whether to perform garbage collection.  */
78
static int gc = 1;
79
 
80
/* The module type to use.  */
81
static unsigned short modtype = ('1' << 8) | 'L';
82
 
83
/* Whether the .text section must be read-only (i.e., no relocs
84
   permitted).  */
85
static int textro;
86
 
87
/* A mask of XCOFF_EXPALL and XCOFF_EXPFULL flags, as set by their
88
   associated -b and -bno options.  */
89
static unsigned int auto_export_flags;
90
 
91
/* A mask of auto_export_flags bits that were explicitly set on the
92
   command line.  */
93
static unsigned int explicit_auto_export_flags;
94
 
95
/* Whether to implement Unix like linker semantics.  */
96
static int unix_ld;
97
 
98
/* Structure used to hold import file list.  */
99
 
100
struct filelist
101
{
102
  struct filelist *next;
103
  const char *name;
104
};
105
 
106
/* List of import files.  */
107
static struct filelist *import_files;
108
 
109
/* List of export symbols read from the export files.  */
110
 
111
struct export_symbol_list
112
{
113
  struct export_symbol_list *next;
114
  const char *name;
115
};
116
 
117
static struct export_symbol_list *export_symbols;
118
 
119
/* Maintains the 32 or 64 bit mode state of import file */
120
static unsigned int symbol_mode = 0x04;
121
 
122
/* Which symbol modes are valid */
123
static unsigned int symbol_mode_mask = 0x0d;
124
 
125
/* Whether this is a 64 bit link */
126
static int is_64bit = 0;
127
 
128
/* Which syscalls from import file are valid */
129
static unsigned int syscall_mask = 0x77;
130
 
131
/* fake file for -binitfini support */
132
static lang_input_statement_type *initfini_file;
133
 
134
/* Whether to do run time linking
135
   -brtl enables, -bnortl and -bnortllib disable. */
136
static int rtld;
137
 
138
/* Explicit command line library path, -blibpath */
139
static char *command_line_blibpath = NULL;
140
 
141
/* This routine is called before anything else is done.  */
142
 
143
static void
144
gld${EMULATION_NAME}_before_parse (void)
145
{
146
  ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
147
 
148
  config.dynamic_link = TRUE;
149
  config.has_shared = TRUE;
150
 
151
  /* The link_info.[init|fini]_functions are initialized in ld/lexsup.c.
152
     Override them here so we can use the link_info.init_function as a
153
     state flag that lets the backend know that -binitfini has been done.  */
154
 
155
  link_info.init_function = NULL;
156
  link_info.fini_function = NULL;
157
}
158
 
159
/* Handle AIX specific options.  */
160
 
161
enum
162
  {
163
    OPTION_IGNORE = 300,
164
    OPTION_AUTOIMP,
165
    OPTION_ERNOTOK,
166
    OPTION_EROK,
167
    OPTION_EXPALL,
168
    OPTION_EXPFULL,
169
    OPTION_EXPORT,
170
    OPTION_IMPORT,
171
    OPTION_INITFINI,
172
    OPTION_LOADMAP,
173
    OPTION_MAXDATA,
174
    OPTION_MAXSTACK,
175
    OPTION_MODTYPE,
176
    OPTION_NOAUTOIMP,
177
    OPTION_NOEXPALL,
178
    OPTION_NOEXPFULL,
179
    OPTION_NOSTRCMPCT,
180
    OPTION_PD,
181
    OPTION_PT,
182
    OPTION_STRCMPCT,
183
    OPTION_UNIX,
184
    OPTION_32,
185
    OPTION_64,
186
    OPTION_LIBPATH,
187
    OPTION_NOLIBPATH,
188
  };
189
 
190
static void
191
gld${EMULATION_NAME}_add_options
192
  (int ns, char **shortopts, int nl, struct option **longopts,
193
   int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED)
194
{
195
  static const char xtra_short[] = "D:H:KT:z";
196
  static const struct option xtra_long[] = {
197
  /* -binitfini has special handling in the linker backend.  The native linker
198
     uses the arguemnts to generate a table of init and fini functions for
199
     the executable.  The important use for this option is to support aix 4.2+
200
     c++ constructors and destructors.  This is tied into gcc via collect2.c.
201
 
202
     The function table is accessed by the runtime linker/loader by checking if
203
     the first symbol in the loader symbol table is __rtinit.  The gnu linker
204
     generates this symbol and makes it the first loader symbol.  */
205
 
206
    {"basis", no_argument, NULL, OPTION_IGNORE},
207
    {"bautoimp", no_argument, NULL, OPTION_AUTOIMP},
208
    {"bcomprld", no_argument, NULL, OPTION_IGNORE},
209
    {"bcrld", no_argument, NULL, OPTION_IGNORE},
210
    {"bcror31", no_argument, NULL, OPTION_IGNORE},
211
    {"bD", required_argument, NULL, OPTION_MAXDATA},
212
    {"bE", required_argument, NULL, OPTION_EXPORT},
213
    {"bernotok", no_argument, NULL, OPTION_ERNOTOK},
214
    {"berok", no_argument, NULL, OPTION_EROK},
215
    {"berrmsg", no_argument, NULL, OPTION_IGNORE},
216
    {"bexpall", no_argument, NULL, OPTION_EXPALL},
217
    {"bexpfull", no_argument, NULL, OPTION_EXPFULL},
218
    {"bexport", required_argument, NULL, OPTION_EXPORT},
219
    {"bbigtoc", no_argument, NULL, OPTION_IGNORE},
220
    {"bf", no_argument, NULL, OPTION_ERNOTOK},
221
    {"bgc", no_argument, &gc, 1},
222
    {"bh", required_argument, NULL, OPTION_IGNORE},
223
    {"bhalt", required_argument, NULL, OPTION_IGNORE},
224
    {"bI", required_argument, NULL, OPTION_IMPORT},
225
    {"bimport", required_argument, NULL, OPTION_IMPORT},
226
    {"binitfini", required_argument, NULL, OPTION_INITFINI},
227
    {"bl", required_argument, NULL, OPTION_LOADMAP},
228
    {"bloadmap", required_argument, NULL, OPTION_LOADMAP},
229
    {"bmaxdata", required_argument, NULL, OPTION_MAXDATA},
230
    {"bmaxstack", required_argument, NULL, OPTION_MAXSTACK},
231
    {"bM", required_argument, NULL, OPTION_MODTYPE},
232
    {"bmodtype", required_argument, NULL, OPTION_MODTYPE},
233
    {"bnoautoimp", no_argument, NULL, OPTION_NOAUTOIMP},
234
    {"bnoexpall", no_argument, NULL, OPTION_NOEXPALL},
235
    {"bnoexpfull", no_argument, NULL, OPTION_NOEXPFULL},
236
    {"bnodelcsect", no_argument, NULL, OPTION_IGNORE},
237
    {"bnoentry", no_argument, NULL, OPTION_IGNORE},
238
    {"bnogc", no_argument, &gc, 0},
239
    {"bnso", no_argument, NULL, OPTION_NOAUTOIMP},
240
    {"bnostrcmpct", no_argument, NULL, OPTION_NOSTRCMPCT},
241
    {"bnotextro", no_argument, &textro, 0},
242
    {"bnro", no_argument, &textro, 0},
243
    {"bpD", required_argument, NULL, OPTION_PD},
244
    {"bpT", required_argument, NULL, OPTION_PT},
245
    {"bro", no_argument, &textro, 1},
246
    {"brtl", no_argument, &rtld, 1},
247
    {"bnortl", no_argument, &rtld, 0},
248
    {"bnortllib", no_argument, &rtld, 0},
249
    {"bS", required_argument, NULL, OPTION_MAXSTACK},
250
    {"bso", no_argument, NULL, OPTION_AUTOIMP},
251
    {"bstrcmpct", no_argument, NULL, OPTION_STRCMPCT},
252
    {"btextro", no_argument, &textro, 1},
253
    {"b32", no_argument, NULL, OPTION_32},
254
    {"b64", no_argument, NULL, OPTION_64},
255
    {"static", no_argument, NULL, OPTION_NOAUTOIMP},
256
    {"unix", no_argument, NULL, OPTION_UNIX},
257
    {"blibpath", required_argument, NULL, OPTION_LIBPATH},
258
    {"bnolibpath", required_argument, NULL, OPTION_NOLIBPATH},
259
    {NULL, no_argument, NULL, 0}
260
  };
261
 
262 163 khays
  /* Options supported by the AIX linker which we do not support:
263 145 khays
     -S, -v, -Z, -bbindcmds, -bbinder, -bbindopts, -bcalls, -bcaps,
264
     -bcror15, -bdebugopt, -bdbg, -bdelcsect, -bex?, -bfilelist, -bfl,
265
     -bgcbypass, -bglink, -binsert, -bi, -bloadmap, -bl, -bmap, -bnl,
266
     -bnobind, -bnocomprld, -bnocrld, -bnoerrmsg, -bnoglink,
267
     -bnoloadmap, -bnl, -bnoobjreorder, -bnoquiet, -bnoreorder,
268
     -bnotypchk, -bnox, -bquiet, -bR, -brename, -breorder, -btypchk,
269
     -bx, -bX, -bxref.  */
270
 
271
  *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
272
  memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
273
  *longopts = xrealloc (*longopts,
274
                        nl * sizeof (struct option) + sizeof (xtra_long));
275
  memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
276
}
277
 
278
static bfd_boolean
279
gld${EMULATION_NAME}_parse_args (int argc, char **argv)
280
{
281
  int indx;
282
 
283
  /* If the current option starts with -b, change the first : to an =.
284
     The AIX linker uses : to separate the option from the argument;
285
     changing it to = lets us treat it as a getopt option.  */
286
  indx = optind;
287
  if (indx == 0)
288
    indx = 1;
289
 
290
  if (indx < argc && CONST_STRNEQ (argv[indx], "-b"))
291
    {
292
      char *s;
293
 
294
      for (s = argv[indx]; *s != '\0'; s++)
295
        {
296
          if (*s == ':')
297
            {
298
              *s = '=';
299
              break;
300
            }
301
        }
302
    }
303
  return FALSE;
304
}
305
 
306 163 khays
/* Helper for option '-f', which specify a list of input files.
307
   Contrary to the native linker, we don't support shell patterns
308
   (simply because glob isn't always available).  */
309
 
310
static void
311
read_file_list (const char *filename)
312
{
313
  FILE *f;
314
  /* An upper bound on the number of characters in the file.  */
315
  long pos;
316
  /* File in memory.  */
317
  char *buffer;
318
  size_t len;
319
  char *b;
320
  char *e;
321
 
322
  f = fopen (filename, FOPEN_RT);
323
  if (f == NULL)
324
    {
325
      einfo ("%F%P: cannot open %s\n", filename);
326
      return;
327
    }
328
  if (fseek (f, 0L, SEEK_END) == -1)
329
    goto error;
330
  pos = ftell (f);
331
  if (pos == -1)
332
    goto error;
333
  if (fseek (f, 0L, SEEK_SET) == -1)
334
    goto error;
335
 
336
  buffer = (char *) xmalloc (pos + 1);
337
  len = fread (buffer, sizeof (char), pos, f);
338
  if (len != (size_t) pos && ferror (f))
339
    goto error;
340
  /* Add a NUL terminator.  */
341
  buffer[len] = '\0';
342
  fclose (f);
343
 
344
  /* Parse files.  */
345
  b = buffer;
346
  while (1)
347
    {
348
      /* Skip empty lines.  */
349
      while (*b == '\n' || *b == '\r')
350
        b++;
351
 
352
      /* Stop if end of buffer.  */
353
      if (b == buffer + len)
354
        break;
355
 
356
      /* Eat any byte until end of line.  */
357
      for (e = b; *e != '\0'; e++)
358
        if (*e == '\n' || *e == '\r')
359
          break;
360
 
361
      /* Replace end of line by nul.  */
362
      if (*e != '\0')
363
        *e++ = '\0';
364
 
365
      if (b != e)
366
        lang_add_input_file (b, lang_input_file_is_search_file_enum, NULL);
367
      b = e;
368
    }
369
  return;
370
 
371
 error:
372
  einfo ("%F%P: cannot read %s\n", optarg);
373
  fclose (f);
374
}
375
 
376 145 khays
static bfd_boolean
377
gld${EMULATION_NAME}_handle_option (int optc)
378
{
379
  bfd_signed_vma val;
380
  const char *end;
381
 
382
  switch (optc)
383
    {
384
    default:
385
      return FALSE;
386
 
387
    case 0:
388
      /* Long option which just sets a flag.  */
389
      break;
390
 
391 163 khays
    case 'f':
392
      /* This overrides --auxiliary.  This option specifies a file containing
393
         a list of input files.  */
394
      read_file_list (optarg);
395
      break;
396
 
397 145 khays
    case 'D':
398
      val = bfd_scan_vma (optarg, &end, 0);
399
      if (*end != '\0')
400
        einfo ("%P: warning: ignoring invalid -D number %s\n", optarg);
401
      else if (val != -1)
402
        lang_section_start (".data", exp_intop (val), NULL);
403
      break;
404
 
405
    case 'H':
406
      val = bfd_scan_vma (optarg, &end, 0);
407
      if (*end != '\0' || (val & (val - 1)) != 0)
408
        einfo ("%P: warning: ignoring invalid -H number %s\n", optarg);
409
      else
410
        file_align = val;
411
      break;
412
 
413
    case 'K':
414
    case 'z':
415
      /* FIXME: This should use the page size for the target system.  */
416
      file_align = 4096;
417
      break;
418
 
419
    case 'T':
420
      /* On AIX this is the same as GNU ld -Ttext.  When we see -T
421
         number, we assume the AIX option is intended.  Otherwise, we
422
         assume the usual GNU ld -T option is intended.  We can't just
423
         ignore the AIX option, because gcc passes it to the linker.  */
424
      val = bfd_scan_vma (optarg, &end, 0);
425
      if (*end != '\0')
426
        return FALSE;
427
      lang_section_start (".text", exp_intop (val), NULL);
428
      break;
429
 
430
    case OPTION_IGNORE:
431
      break;
432
 
433
    case OPTION_INITFINI:
434
      {
435
        /*
436
         * The aix linker init fini has the format :
437
         *
438
         * -binitfini:[ Initial][:Termination][:Priority]
439
         *
440
         * it allows the Termination and Priority to be optional.
441
         *
442
         * Since we support only one init/fini pair, we ignore the Priority.
443
         *
444
         * Define the special symbol __rtinit.
445
         *
446
         * strtok does not correctly handle the case of -binitfini::fini: so
447
         * do it by hand
448
         */
449
        char *t, *i, *f;
450
 
451
        i = t = optarg;
452
        while (*t && ':' != *t)
453
          t++;
454
        if (*t)
455
          *t++ = 0;
456
 
457
        if (0 != strlen (i))
458
          link_info.init_function = i;
459
 
460
        f = t;
461
        while (*t && ':' != *t)
462
          t++;
463
        *t = 0;
464
 
465
        if (0 != strlen (f))
466
          link_info.fini_function = f;
467
      }
468
      break;
469
 
470
    case OPTION_AUTOIMP:
471
      link_info.static_link = FALSE;
472
      break;
473
 
474
    case OPTION_ERNOTOK:
475
      link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
476
      link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
477
      break;
478
 
479
    case OPTION_EROK:
480
      link_info.unresolved_syms_in_objects = RM_IGNORE;
481
      link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
482
      break;
483
 
484
    case OPTION_EXPALL:
485
      auto_export_flags |= XCOFF_EXPALL;
486
      explicit_auto_export_flags |= XCOFF_EXPALL;
487
      break;
488
 
489
    case OPTION_EXPFULL:
490
      auto_export_flags |= XCOFF_EXPFULL;
491
      explicit_auto_export_flags |= XCOFF_EXPFULL;
492
      break;
493
 
494
    case OPTION_EXPORT:
495
      gld${EMULATION_NAME}_read_file (optarg, FALSE);
496
      break;
497
 
498
    case OPTION_IMPORT:
499
      {
500
        struct filelist *n;
501
        struct filelist **flpp;
502
 
503
        n = (struct filelist *) xmalloc (sizeof (struct filelist));
504
        n->next = NULL;
505
        n->name = optarg;
506
        flpp = &import_files;
507
        while (*flpp != NULL)
508
          flpp = &(*flpp)->next;
509
        *flpp = n;
510
      }
511
      break;
512
 
513
    case OPTION_LOADMAP:
514
      config.map_filename = optarg;
515
      break;
516
 
517
    case OPTION_MAXDATA:
518
      val = bfd_scan_vma (optarg, &end, 0);
519
      if (*end != '\0')
520
        einfo ("%P: warning: ignoring invalid -bmaxdata number %s\n", optarg);
521
      else
522
        maxdata = val;
523
      break;
524
 
525
    case OPTION_MAXSTACK:
526
      val = bfd_scan_vma (optarg, &end, 0);
527
      if (*end != '\0')
528
        einfo ("%P: warning: ignoring invalid -bmaxstack number %s\n",
529
               optarg);
530
      else
531
        maxstack = val;
532
      break;
533
 
534
    case OPTION_MODTYPE:
535
      if (*optarg == 'S')
536
        {
537
          link_info.shared = TRUE;
538
          ++optarg;
539
        }
540
      if (*optarg == '\0' || optarg[1] == '\0')
541
        einfo ("%P: warning: ignoring invalid module type %s\n", optarg);
542
      else
543
        modtype = (*optarg << 8) | optarg[1];
544
      break;
545
 
546
    case OPTION_NOAUTOIMP:
547
      link_info.static_link = TRUE;
548
      break;
549
 
550
    case OPTION_NOEXPALL:
551
      auto_export_flags &= ~XCOFF_EXPALL;
552
      explicit_auto_export_flags |= XCOFF_EXPALL;
553
      break;
554
 
555
    case OPTION_NOEXPFULL:
556
      auto_export_flags &= ~XCOFF_EXPFULL;
557
      explicit_auto_export_flags |= XCOFF_EXPFULL;
558
      break;
559
 
560
    case OPTION_NOSTRCMPCT:
561
      link_info.traditional_format = TRUE;
562
      break;
563
 
564
    case OPTION_PD:
565
      /* This sets the page that the .data section is supposed to
566
         start on.  The offset within the page should still be the
567
         offset within the file, so we need to build an appropriate
568
         expression.  */
569
      val = bfd_scan_vma (optarg, &end, 0);
570
      if (*end != '\0')
571
        einfo ("%P: warning: ignoring invalid -pD number %s\n", optarg);
572
      else
573
        {
574
          etree_type *t;
575
 
576
          t = exp_binop ('+',
577
                         exp_intop (val),
578
                         exp_binop ('&',
579
                                    exp_nameop (NAME, "."),
580
                                    exp_intop (0xfff)));
581
          t = exp_binop ('&',
582
                         exp_binop ('+', t, exp_intop (31)),
583
                         exp_intop (~(bfd_vma) 31));
584
          lang_section_start (".data", t, NULL);
585
        }
586
      break;
587
 
588
    case OPTION_PT:
589
      /* This set the page that the .text section is supposed to start
590
         on.  The offset within the page should still be the offset
591
         within the file.  */
592
      val = bfd_scan_vma (optarg, &end, 0);
593
      if (*end != '\0')
594
        einfo ("%P: warning: ignoring invalid -pT number %s\n", optarg);
595
      else
596
        {
597
          etree_type *t;
598
 
599
          t = exp_binop ('+',
600
                         exp_intop (val),
601
                         exp_nameop (SIZEOF_HEADERS, NULL));
602
          t = exp_binop ('&',
603
                         exp_binop ('+', t, exp_intop (31)),
604
                         exp_intop (~(bfd_vma) 31));
605
          lang_section_start (".text", t, NULL);
606
        }
607
      break;
608
 
609
    case OPTION_STRCMPCT:
610
      link_info.traditional_format = FALSE;
611
      break;
612
 
613
    case OPTION_UNIX:
614
      unix_ld = TRUE;
615
      break;
616
 
617
    case OPTION_32:
618
      is_64bit = 0;
619
      syscall_mask = 0x77;
620
      symbol_mode_mask = 0x0d;
621
      break;
622
 
623
    case OPTION_64:
624
      is_64bit = 1;
625
      syscall_mask = 0xcc;
626
      symbol_mode_mask = 0x0e;
627
      break;
628
 
629
    case OPTION_LIBPATH:
630
      command_line_blibpath = optarg;
631
      break;
632
 
633
    case OPTION_NOLIBPATH:
634
      command_line_blibpath = NULL;
635
      break;
636
 
637
    }
638
 
639
  return TRUE;
640
}
641
 
642
/* This is called when an input file can not be recognized as a BFD
643
   object or an archive.  If the file starts with #!, we must treat it
644
   as an import file.  This is for AIX compatibility.  */
645
 
646
static bfd_boolean
647
gld${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry)
648
{
649
  FILE *e;
650
  bfd_boolean ret;
651
 
652
  e = fopen (entry->filename, FOPEN_RT);
653
  if (e == NULL)
654
    return FALSE;
655
 
656
  ret = FALSE;
657
 
658
  if (getc (e) == '#' && getc (e) == '!')
659
    {
660
      struct filelist *n;
661
      struct filelist **flpp;
662
 
663
      n = (struct filelist *) xmalloc (sizeof (struct filelist));
664
      n->next = NULL;
665
      n->name = entry->filename;
666
      flpp = &import_files;
667
      while (*flpp != NULL)
668
        flpp = &(*flpp)->next;
669
      *flpp = n;
670
 
671
      ret = TRUE;
672
      entry->loaded = TRUE;
673
    }
674
 
675
  fclose (e);
676
 
677
  return ret;
678
}
679
 
680
/* This is called after the input files have been opened.  */
681
 
682
static void
683
gld${EMULATION_NAME}_after_open (void)
684
{
685
  bfd_boolean r;
686
  struct set_info *p;
687
 
688
  after_open_default ();
689
 
690
  /* Call ldctor_build_sets, after pretending that this is a
691
     relocatable link.  We do this because AIX requires relocation
692
     entries for all references to symbols, even in a final
693
     executable.  Of course, we only want to do this if we are
694
     producing an XCOFF output file.  */
695
  r = link_info.relocatable;
696
  if (strstr (bfd_get_target (link_info.output_bfd), "xcoff") != NULL)
697
    link_info.relocatable = TRUE;
698
  ldctor_build_sets ();
699
  link_info.relocatable = r;
700
 
701
  /* For each set, record the size, so that the XCOFF backend can
702
     output the correct csect length.  */
703
  for (p = sets; p != (struct set_info *) NULL; p = p->next)
704
    {
705
      bfd_size_type size;
706
 
707
      /* If the symbol is defined, we may have been invoked from
708
         collect, and the sets may already have been built, so we do
709
         not do anything.  */
710
      if (p->h->type == bfd_link_hash_defined
711
          || p->h->type == bfd_link_hash_defweak)
712
        continue;
713
 
714
      if (p->reloc != BFD_RELOC_CTOR)
715
        {
716
          /* Handle this if we need to.  */
717
          abort ();
718
        }
719
 
720
      size = (p->count + 2) * 4;
721
      if (!bfd_xcoff_link_record_set (link_info.output_bfd, &link_info,
722
                                      p->h, size))
723
        einfo ("%F%P: bfd_xcoff_link_record_set failed: %E\n");
724
    }
725
}
726
 
727
/* This is called after the sections have been attached to output
728
   sections, but before any sizes or addresses have been set.  */
729
 
730
static void
731
gld${EMULATION_NAME}_before_allocation (void)
732
{
733
  struct filelist *fl;
734
  struct export_symbol_list *el;
735
  char *libpath;
736
  asection *special_sections[XCOFF_NUMBER_OF_SPECIAL_SECTIONS];
737
  static const char *const must_keep_sections[] = {
738
    ".text",
739
    ".data",
740
    ".bss"
741
  };
742
  unsigned int i, flags;
743
 
744
  /* Handle the import and export files, if any.  */
745
  for (fl = import_files; fl != NULL; fl = fl->next)
746
    gld${EMULATION_NAME}_read_file (fl->name, TRUE);
747
  for (el = export_symbols; el != NULL; el = el->next)
748
    {
749
      struct bfd_link_hash_entry *h;
750
 
751
      h = bfd_link_hash_lookup (link_info.hash, el->name, FALSE, FALSE, FALSE);
752
      if (h == NULL)
753
        einfo ("%P%F: bfd_link_hash_lookup of export symbol failed: %E\n");
754
      if (!bfd_xcoff_export_symbol (link_info.output_bfd, &link_info, h))
755
        einfo ("%P%F: bfd_xcoff_export_symbol failed: %E\n");
756
    }
757
 
758
  /* Track down all relocations called for by the linker script (these
759
     are typically constructor/destructor entries created by
760
     CONSTRUCTORS) and let the backend know it will need to create
761
     .loader relocs for them.  */
762
  lang_for_each_statement (gld${EMULATION_NAME}_find_relocs);
763
 
764
  /* Precedence of LIBPATH
765
     -blibpath:  native support always first
766
     -rpath:     gnu extension
767
     -L          build from command line -L's */
768
  if (command_line_blibpath != NULL)
769
    libpath = command_line_blibpath;
770
  else if (command_line.rpath != NULL)
771
    libpath = command_line.rpath;
772
  else if (search_head == NULL)
773
    libpath = (char *) "";
774
  else
775
    {
776
      size_t len;
777
      search_dirs_type *search;
778
 
779
      /* PR ld/4023: Strip sysroot prefix from any paths
780
         being inserted into the output binary's DT_RPATH.  */
781
      if (ld_sysroot != NULL
782
          && * ld_sysroot != 0)
783
        {
784
          const char * name = search_head->name;
785
          size_t ld_sysroot_len = strlen (ld_sysroot);
786
 
787
          if (strncmp (name, ld_sysroot, ld_sysroot_len) == 0)
788
            name += ld_sysroot_len;
789
 
790
          len = strlen (name);
791
          libpath = xmalloc (len + 1);
792
          strcpy (libpath, name);
793
 
794
          for (search = search_head->next; search != NULL; search = search->next)
795
            {
796
              size_t nlen;
797
 
798
              name = search->name;
799
              if (strncmp (name, ld_sysroot, ld_sysroot_len) == 0)
800
                name += ld_sysroot_len;
801
 
802
              nlen = strlen (name);
803
              libpath = xrealloc (libpath, len + nlen + 2);
804
              libpath[len] = ':';
805
              strcpy (libpath + len + 1, name);
806
              len += nlen + 1;
807
            }
808
        }
809
      else
810
        {
811
          len = strlen (search_head->name);
812
          libpath = xmalloc (len + 1);
813
          strcpy (libpath, search_head->name);
814
 
815
          for (search = search_head->next; search != NULL; search = search->next)
816
            {
817
              size_t nlen;
818
 
819
              nlen = strlen (search->name);
820
              libpath = xrealloc (libpath, len + nlen + 2);
821
              libpath[len] = ':';
822
              strcpy (libpath + len + 1, search->name);
823
              len += nlen + 1;
824
            }
825
        }
826
    }
827
 
828
  /* Default to -bexpfull for SVR4-like semantics.  */
829
  flags = (unix_ld ? XCOFF_EXPFULL : 0);
830
  flags &= ~explicit_auto_export_flags;
831
  flags |= auto_export_flags;
832
 
833
  /* Let the XCOFF backend set up the .loader section.  */
834
  if (!bfd_xcoff_size_dynamic_sections
835
      (link_info.output_bfd, &link_info, libpath, entry_symbol.name, file_align,
836
       maxstack, maxdata, gc && !unix_ld ? TRUE : FALSE,
837
       modtype, textro ? TRUE : FALSE, flags, special_sections,
838
       rtld ? TRUE : FALSE))
839
    einfo ("%P%F: failed to set dynamic section sizes: %E\n");
840
 
841
  /* Look through the special sections, and put them in the right
842
     place in the link ordering.  This is especially magic.  */
843
  for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++)
844
    {
845
      asection *sec;
846
      lang_output_section_statement_type *os;
847
      lang_statement_union_type **pls;
848
      lang_input_section_type *is;
849
      const char *oname;
850
      bfd_boolean start;
851
 
852
      sec = special_sections[i];
853
      if (sec == NULL)
854
        continue;
855
 
856
      /* Remove this section from the list of the output section.
857
         This assumes we know what the script looks like.  */
858
      is = NULL;
859
      os = lang_output_section_find (sec->output_section->name);
860
      if (os == NULL)
861
        einfo ("%P%F: can't find output section %s\n",
862
               sec->output_section->name);
863
 
864
      for (pls = &os->children.head; *pls != NULL; pls = &(*pls)->header.next)
865
        {
866
          if ((*pls)->header.type == lang_input_section_enum
867
              && (*pls)->input_section.section == sec)
868
            {
869
              is = (lang_input_section_type *) * pls;
870
              *pls = (*pls)->header.next;
871
              break;
872
            }
873
 
874
          if ((*pls)->header.type == lang_wild_statement_enum)
875
            {
876
              lang_statement_union_type **pwls;
877
 
878
              for (pwls = &(*pls)->wild_statement.children.head;
879
                   *pwls != NULL; pwls = &(*pwls)->header.next)
880
                {
881
 
882
                  if ((*pwls)->header.type == lang_input_section_enum
883
                      && (*pwls)->input_section.section == sec)
884
                    {
885
                      is = (lang_input_section_type *) * pwls;
886
                      *pwls = (*pwls)->header.next;
887
                      break;
888
                    }
889
                }
890
 
891
              if (is != NULL)
892
                break;
893
            }
894
        }
895
 
896
      if (is == NULL)
897
        {
898
          einfo ("%P%F: can't find %s in output section\n",
899
                 bfd_get_section_name (sec->owner, sec));
900
        }
901
 
902
      /* Now figure out where the section should go.  */
903
      switch (i)
904
        {
905
 
906
        default:                /* to avoid warnings */
907
        case XCOFF_SPECIAL_SECTION_TEXT:
908
          /* _text */
909
          oname = ".text";
910
          start = TRUE;
911
          break;
912
 
913
        case XCOFF_SPECIAL_SECTION_ETEXT:
914
          /* _etext */
915
          oname = ".text";
916
          start = FALSE;
917
          break;
918
 
919
        case XCOFF_SPECIAL_SECTION_DATA:
920
          /* _data */
921
          oname = ".data";
922
          start = TRUE;
923
          break;
924
 
925
        case XCOFF_SPECIAL_SECTION_EDATA:
926
          /* _edata */
927
          oname = ".data";
928
          start = FALSE;
929
          break;
930
 
931
        case XCOFF_SPECIAL_SECTION_END:
932
        case XCOFF_SPECIAL_SECTION_END2:
933
          /* _end and end */
934
          oname = ".bss";
935
          start = FALSE;
936
          break;
937
        }
938
 
939
      os = lang_output_section_find (oname);
940
 
941
      if (start)
942
        {
943
          is->header.next = os->children.head;
944
          os->children.head = (lang_statement_union_type *) is;
945
        }
946
      else
947
        {
948
          is->header.next = NULL;
949
          lang_statement_append (&os->children,
950
                                 (lang_statement_union_type *) is,
951
                                 &is->header.next);
952
        }
953
    }
954
 
955
  /* Executables and shared objects must always have .text, .data
956
     and .bss output sections, so that the header can refer to them.
957
     The kernel refuses to load objects that have missing sections.  */
958
  if (!link_info.relocatable)
959
    for (i = 0; i < ARRAY_SIZE (must_keep_sections); i++)
960
      {
961
        asection *sec;
962
 
963
        sec = bfd_get_section_by_name (link_info.output_bfd,
964
                                       must_keep_sections[i]);
965
        if (sec == NULL)
966
          einfo ("%P: can't find required output section %s\n", must_keep_sections[i]);
967
        else
968
          sec->flags |= SEC_KEEP;
969
      }
970
 
971
  before_allocation_default ();
972
}
973
 
974
static char *
975
gld${EMULATION_NAME}_choose_target (int argc, char **argv)
976
{
977
  int i, j, jmax;
978
  static char *from_outside;
979
  static char *from_inside;
980
  static char *argv_to_target[][2] = {
981
    {NULL,   "${OUTPUT_FORMAT}"},
982
    {"-b32", "${OUTPUT_FORMAT_32BIT}"},
983
    {"-b64", "${OUTPUT_FORMAT_64BIT}"},
984
  };
985
 
986
  jmax = 3;
987
 
988
  from_outside = getenv (TARGET_ENVIRON);
989
  if (from_outside != (char *) NULL)
990
    return from_outside;
991
 
992
  /* Set to default. */
993
  from_inside = argv_to_target[0][1];
994
  for (i = 1; i < argc; i++)
995
    {
996
      for (j = 1; j < jmax; j++)
997
        {
998
          if (0 == strcmp (argv[i], argv_to_target[j][0]))
999
            from_inside = argv_to_target[j][1];
1000
        }
1001
    }
1002
 
1003
  return from_inside;
1004
}
1005
 
1006
/* Returns
1007
   1 : state changed
1008
 
1009
static int
1010
change_symbol_mode (char *input)
1011
{
1012
  char *symbol_mode_string[] = {
1013
    "# 32",                     /* 0x01 */
1014
    "# 64",                     /* 0x02 */
1015
    "# no32",                   /* 0x04 */
1016
    "# no64",                   /* 0x08 */
1017
    NULL,
1018
  };
1019
 
1020
  unsigned int bit;
1021
  char *string;
1022
 
1023
  for (bit = 0;; bit++)
1024
    {
1025
      string = symbol_mode_string[bit];
1026
      if (string == NULL)
1027
        return 0;
1028
 
1029
      if (0 == strcmp (input, string))
1030
        {
1031
          symbol_mode = (1 << bit);
1032
          return 1;
1033
        }
1034
    }
1035
  /* should not be here */
1036
  return 0;
1037
}
1038
 
1039
/* Returns
1040
   1 : yes
1041
 
1042
   -1 : error, try something else */
1043
static int
1044
is_syscall (char *input, unsigned int *flag)
1045
{
1046
  unsigned int bit;
1047
  char *string;
1048
 
1049
  struct sc {
1050
    char *syscall_string;
1051
    unsigned int flag;
1052
  } s [] = {
1053
    { "svc"         /* 0x01 */, XCOFF_SYSCALL32 },
1054
    { "svc32"       /* 0x02 */, XCOFF_SYSCALL32 },
1055
    { "svc3264"     /* 0x04 */, XCOFF_SYSCALL32 | XCOFF_SYSCALL64 },
1056
    { "svc64"       /* 0x08 */, XCOFF_SYSCALL64 },
1057
    { "syscall"     /* 0x10 */, XCOFF_SYSCALL32 },
1058
    { "syscall32"   /* 0x20 */, XCOFF_SYSCALL32 },
1059
    { "syscall3264" /* 0x40 */, XCOFF_SYSCALL32 | XCOFF_SYSCALL64 },
1060
    { "syscall64"   /* 0x80 */, XCOFF_SYSCALL64 },
1061
    { NULL, 0 },
1062
  };
1063
 
1064
  *flag = 0;
1065
 
1066
  for (bit = 0;; bit++)
1067
    {
1068
      string = s[bit].syscall_string;
1069
      if (string == NULL)
1070
        return -1;
1071
 
1072
      if (0 == strcmp (input, string))
1073
        {
1074
          if (1 << bit & syscall_mask)
1075
            {
1076
              *flag = s[bit].flag;
1077
              return 1;
1078
            }
1079
          else
1080
            {
1081
              return 0;
1082
            }
1083
        }
1084
    }
1085
  /* should not be here */
1086
  return -1;
1087
}
1088
 
1089
/* Read an import or export file.  For an import file, this is called
1090
   by the before_allocation emulation routine.  For an export file,
1091
   this is called by the handle_option emulation routine.  */
1092
 
1093
static void
1094
gld${EMULATION_NAME}_read_file (const char *filename, bfd_boolean import)
1095
{
1096
  struct obstack *o;
1097
  FILE *f;
1098
  int lineno;
1099
  int c;
1100
  bfd_boolean keep;
1101
  const char *imppath;
1102
  const char *impfile;
1103
  const char *impmember;
1104
 
1105
  o = (struct obstack *) xmalloc (sizeof (struct obstack));
1106
  obstack_specify_allocation (o, 0, 0, xmalloc, gld${EMULATION_NAME}_free);
1107
 
1108
  f = fopen (filename, FOPEN_RT);
1109
  if (f == NULL)
1110
    {
1111
      bfd_set_error (bfd_error_system_call);
1112
      einfo ("%F%s: %E\n", filename);
1113
    }
1114
 
1115
  keep = FALSE;
1116
 
1117
  imppath = NULL;
1118
  impfile = NULL;
1119
  impmember = NULL;
1120
 
1121
  lineno = 0;
1122
 
1123
  /* Default to 32 and 64 bit mode
1124
     symbols at top of /lib/syscalls.exp do not have a mode modifier and they
1125
     are not repeated, assume 64 bit routines also want to use them.
1126
     See the routine change_symbol_mode for more information.  */
1127
 
1128
  symbol_mode = 0x04;
1129
 
1130
  while ((c = getc (f)) != EOF)
1131
    {
1132
      char *s;
1133
      char *symname;
1134
      unsigned int syscall_flag = 0;
1135
      bfd_vma address;
1136
      struct bfd_link_hash_entry *h;
1137
 
1138
      if (c != '\n')
1139
        {
1140
          obstack_1grow (o, c);
1141
          continue;
1142
        }
1143
 
1144
      obstack_1grow (o, '\0');
1145
      ++lineno;
1146
 
1147
      s = (char *) obstack_base (o);
1148
      while (ISSPACE (*s))
1149
        ++s;
1150
      if (*s == '\0'
1151
          || *s == '*'
1152
          || change_symbol_mode (s)
1153
          || (*s == '#' && s[1] == ' ')
1154
          || (!import && *s == '#' && s[1] == '!'))
1155
        {
1156
          obstack_free (o, obstack_base (o));
1157
          continue;
1158
        }
1159
 
1160
      if (*s == '#' && s[1] == '!')
1161
        {
1162
          s += 2;
1163
          while (ISSPACE (*s))
1164
            ++s;
1165
          if (*s == '\0')
1166
            {
1167
              imppath = NULL;
1168
              impfile = NULL;
1169
              impmember = NULL;
1170
              obstack_free (o, obstack_base (o));
1171
            }
1172
          else if (*s == '(')
1173
            einfo ("%F%s%d: #! ([member]) is not supported in import files\n",
1174
                   filename, lineno);
1175
          else
1176
            {
1177
              char cs;
1178
              char *start;
1179
 
1180
              (void) obstack_finish (o);
1181
              keep = TRUE;
1182
              start = s;
1183
              while (!ISSPACE (*s) && *s != '(' && *s != '\0')
1184
                ++s;
1185
              cs = *s;
1186
              *s = '\0';
1187
              if (!bfd_xcoff_split_import_path (link_info.output_bfd,
1188
                                                start, &imppath, &impfile))
1189
                einfo ("%F%P: Could not parse import path: %E\n");
1190
              while (ISSPACE (cs))
1191
                {
1192
                  ++s;
1193
                  cs = *s;
1194
                }
1195
              if (cs != '(')
1196
                {
1197
                  impmember = "";
1198
                  if (cs != '\0')
1199
                    einfo ("%s:%d: warning: syntax error in import file\n",
1200
                           filename, lineno);
1201
                }
1202
              else
1203
                {
1204
                  ++s;
1205
                  impmember = s;
1206
                  while (*s != ')' && *s != '\0')
1207
                    ++s;
1208
                  if (*s == ')')
1209
                    *s = '\0';
1210
                  else
1211
                    einfo ("%s:%d: warning: syntax error in import file\n",
1212
                           filename, lineno);
1213
                }
1214
            }
1215
 
1216
          continue;
1217
        }
1218
 
1219
      if (symbol_mode & symbol_mode_mask)
1220
        {
1221
          /* This is a symbol to be imported or exported.  */
1222
          symname = s;
1223
          syscall_flag = 0;
1224
          address = (bfd_vma) -1;
1225
 
1226
          while (!ISSPACE (*s) && *s != '\0')
1227
            ++s;
1228
          if (*s != '\0')
1229
            {
1230
              char *se;
1231
 
1232
              *s++ = '\0';
1233
 
1234
              while (ISSPACE (*s))
1235
                ++s;
1236
 
1237
              se = s;
1238
              while (!ISSPACE (*se) && *se != '\0')
1239
                ++se;
1240
              if (*se != '\0')
1241
                {
1242
                  *se++ = '\0';
1243
                  while (ISSPACE (*se))
1244
                    ++se;
1245
                  if (*se != '\0')
1246
                    einfo ("%s%d: warning: syntax error in import/export file\n",
1247
                           filename, lineno);
1248
                }
1249
 
1250
              if (s != se)
1251
                {
1252
                  int status;
1253
                  const char *end;
1254
 
1255
                  status = is_syscall (s, &syscall_flag);
1256
 
1257
                  if (0 > status)
1258
                    {
1259
                      /* not a system call, check for address */
1260
                      address = bfd_scan_vma (s, &end, 0);
1261
                      if (*end != '\0')
1262
                        {
1263
                          einfo ("%s:%d: warning: syntax error in import/export file\n",
1264
                                 filename, lineno);
1265
 
1266
                        }
1267
                    }
1268
                }
1269
            }
1270
 
1271
          if (!import)
1272
            {
1273
              struct export_symbol_list *n;
1274
 
1275
              ldlang_add_undef (symname, TRUE);
1276
              n = ((struct export_symbol_list *)
1277
                   xmalloc (sizeof (struct export_symbol_list)));
1278
              n->next = export_symbols;
1279
              n->name = xstrdup (symname);
1280
              export_symbols = n;
1281
            }
1282
          else
1283
            {
1284
              h = bfd_link_hash_lookup (link_info.hash, symname, FALSE, FALSE,
1285
                                        TRUE);
1286
              if (h == NULL || h->type == bfd_link_hash_new)
1287
                {
1288
                  /* We can just ignore attempts to import an unreferenced
1289
                     symbol.  */
1290
                }
1291
              else
1292
                {
1293
                  if (!bfd_xcoff_import_symbol (link_info.output_bfd,
1294
                                                &link_info, h,
1295
                                                address, imppath, impfile,
1296
                                                impmember, syscall_flag))
1297
                    einfo ("%X%s:%d: failed to import symbol %s: %E\n",
1298
                           filename, lineno, symname);
1299
                }
1300
            }
1301
        }
1302
      obstack_free (o, obstack_base (o));
1303
    }
1304
 
1305
  if (obstack_object_size (o) > 0)
1306
    {
1307
      einfo ("%s:%d: warning: ignoring unterminated last line\n",
1308
             filename, lineno);
1309
      obstack_free (o, obstack_base (o));
1310
    }
1311
 
1312
  if (!keep)
1313
    {
1314
      obstack_free (o, NULL);
1315
      free (o);
1316
    }
1317
}
1318
 
1319
/* This routine saves us from worrying about declaring free.  */
1320
 
1321
static void
1322
gld${EMULATION_NAME}_free (void *p)
1323
{
1324
  free (p);
1325
}
1326
 
1327
/* This is called by the before_allocation routine via
1328
   lang_for_each_statement.  It looks for relocations and assignments
1329
   to symbols.  */
1330
 
1331
static void
1332
gld${EMULATION_NAME}_find_relocs (lang_statement_union_type *s)
1333
{
1334
  if (s->header.type == lang_reloc_statement_enum)
1335
    {
1336
      lang_reloc_statement_type *rs;
1337
 
1338
      rs = &s->reloc_statement;
1339
      if (rs->name == NULL)
1340
        einfo ("%F%P: only relocations against symbols are permitted\n");
1341
      if (!bfd_xcoff_link_count_reloc (link_info.output_bfd, &link_info,
1342
                                       rs->name))
1343
        einfo ("%F%P: bfd_xcoff_link_count_reloc failed: %E\n");
1344
    }
1345
 
1346
  if (s->header.type == lang_assignment_statement_enum)
1347
    gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
1348
}
1349
 
1350
/* Look through an expression for an assignment statement.  */
1351
 
1352
static void
1353
gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp)
1354
{
1355
  struct bfd_link_hash_entry *h;
1356
 
1357
  switch (exp->type.node_class)
1358
    {
1359
    case etree_provide:
1360
      h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst,
1361
                                FALSE, FALSE, FALSE);
1362
      if (h == NULL)
1363
        break;
1364
      /* Fall through.  */
1365
    case etree_assign:
1366
      if (strcmp (exp->assign.dst, ".") != 0)
1367
        {
1368
          if (!bfd_xcoff_record_link_assignment (link_info.output_bfd,
1369
                                                 &link_info,
1370
                                                 exp->assign.dst))
1371
            einfo ("%P%F: failed to record assignment to %s: %E\n",
1372
                   exp->assign.dst);
1373
        }
1374
      gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
1375
      break;
1376
 
1377
    case etree_binary:
1378
      gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
1379
      gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
1380
      break;
1381
 
1382
    case etree_trinary:
1383
      gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
1384
      gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
1385
      gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
1386
      break;
1387
 
1388
    case etree_unary:
1389
      gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
1390
      break;
1391
 
1392
    default:
1393
      break;
1394
    }
1395
}
1396
 
1397
static char *
1398
gld${EMULATION_NAME}_get_script (int *isfile)
1399
EOF
1400
 
1401
if test -n "$COMPILE_IN"
1402
then
1403
# Scripts compiled in.
1404
 
1405
# sed commands to quote an ld script as a C string.
1406
sc="-f ${srcdir}/emultempl/ostring.sed"
1407
 
1408
fragment <
1409
{
1410
  *isfile = 0;
1411
 
1412
  if (link_info.relocatable && config.build_constructors)
1413
    return
1414
EOF
1415
sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
1416
echo '  ; else if (link_info.relocatable) return'     >> e${EMULATION_NAME}.c
1417
sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
1418
echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
1419
sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
1420
echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1421
sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
1422
echo '  ; else return'                                 >> e${EMULATION_NAME}.c
1423
sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
1424
echo '; }'                                             >> e${EMULATION_NAME}.c
1425
 
1426
else
1427
# Scripts read from the filesystem.
1428
 
1429
fragment <
1430
{
1431
  *isfile = 1;
1432
 
1433
  if (link_info.relocatable && config.build_constructors)
1434
    return "ldscripts/${EMULATION_NAME}.xu";
1435
  else if (link_info.relocatable)
1436
    return "ldscripts/${EMULATION_NAME}.xr";
1437
  else if (!config.text_read_only)
1438
    return "ldscripts/${EMULATION_NAME}.xbn";
1439
  else if (!config.magic_demand_paged)
1440
    return "ldscripts/${EMULATION_NAME}.xn";
1441
  else
1442
    return "ldscripts/${EMULATION_NAME}.x";
1443
}
1444
EOF
1445
 
1446
fi
1447
 
1448
fragment <
1449
 
1450
static void
1451
gld${EMULATION_NAME}_create_output_section_statements (void)
1452
{
1453
  /* __rtinit */
1454
  if ((bfd_get_flavour (link_info.output_bfd) == bfd_target_xcoff_flavour)
1455
      && (link_info.init_function != NULL
1456
          || link_info.fini_function != NULL
1457
          || rtld))
1458
    {
1459
      initfini_file = lang_add_input_file ("initfini",
1460
                                           lang_input_file_is_file_enum,
1461
                                           NULL);
1462
 
1463
      initfini_file->the_bfd = bfd_create ("initfini", link_info.output_bfd);
1464
      if (initfini_file->the_bfd == NULL
1465
          || ! bfd_set_arch_mach (initfini_file->the_bfd,
1466
                                  bfd_get_arch (link_info.output_bfd),
1467
                                  bfd_get_mach (link_info.output_bfd)))
1468
        {
1469
          einfo ("%X%P: can not create BFD %E\n");
1470
          return;
1471
        }
1472
 
1473
      /* Call backend to fill in the rest */
1474
      if (! bfd_xcoff_link_generate_rtinit (initfini_file->the_bfd,
1475
                                            link_info.init_function,
1476
                                            link_info.fini_function,
1477
                                            rtld))
1478
        {
1479
          einfo ("%X%P: can not create BFD %E\n");
1480
          return;
1481
        }
1482
 
1483
      /* __rtld defined in /lib/librtl.a */
1484
      if (rtld)
1485
        lang_add_input_file ("rtl", lang_input_file_is_l_enum, NULL);
1486
    }
1487
}
1488
 
1489
static void
1490
gld${EMULATION_NAME}_set_output_arch (void)
1491
{
1492
  bfd_set_arch_mach (link_info.output_bfd,
1493
                     bfd_xcoff_architecture (link_info.output_bfd),
1494
                     bfd_xcoff_machine (link_info.output_bfd));
1495
 
1496
  ldfile_output_architecture = bfd_get_arch (link_info.output_bfd);
1497
  ldfile_output_machine = bfd_get_mach (link_info.output_bfd);
1498
  ldfile_output_machine_name = bfd_printable_name (link_info.output_bfd);
1499
}
1500
 
1501
static bfd_boolean
1502
gld${EMULATION_NAME}_open_dynamic_archive (const char *arch,
1503
                                           search_dirs_type *search,
1504
                                           lang_input_statement_type *entry)
1505
{
1506
  char *path;
1507
 
1508
  if (!entry->maybe_archive)
1509
    return FALSE;
1510
 
1511
  path = concat (search->name, "/lib", entry->filename, arch, ".a", NULL);
1512
  if (!ldfile_try_open_bfd (path, entry))
1513
    {
1514
      free (path);
1515
      return FALSE;
1516
    }
1517
  /* Don't include the searched directory in the import path.  */
1518
  bfd_xcoff_set_archive_import_path (&link_info, entry->the_bfd,
1519
                                     path + strlen (search->name) + 1);
1520
  entry->filename = path;
1521
  return TRUE;
1522
}
1523
 
1524
struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = {
1525
  gld${EMULATION_NAME}_before_parse,
1526
  syslib_default,
1527
  hll_default,
1528
  after_parse_default,
1529
  gld${EMULATION_NAME}_after_open,
1530
  after_allocation_default,
1531
  gld${EMULATION_NAME}_set_output_arch,
1532
  gld${EMULATION_NAME}_choose_target,
1533
  gld${EMULATION_NAME}_before_allocation,
1534
  gld${EMULATION_NAME}_get_script,
1535
  "${EMULATION_NAME}",
1536
  "${OUTPUT_FORMAT}",
1537
  finish_default,
1538
  gld${EMULATION_NAME}_create_output_section_statements,
1539
  gld${EMULATION_NAME}_open_dynamic_archive,
1540
  0,                            /* place_orphan */
1541
  0,                            /* set_symbols */
1542
  gld${EMULATION_NAME}_parse_args,
1543
  gld${EMULATION_NAME}_add_options,
1544
  gld${EMULATION_NAME}_handle_option,
1545
  gld${EMULATION_NAME}_unrecognized_file,
1546
  NULL,                         /* list_options */
1547
  NULL,                         /* recognized_file */
1548
  NULL,                         /* find potential_libraries */
1549
  NULL                          /* new_vers_pattern */
1550
};
1551
EOF

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