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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [ld/] [emultempl/] [spuelf.em] - Blame information for rev 262

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1 145 khays
# This shell script emits a C file. -*- C -*-
2
#   Copyright 2006, 2007, 2008, 2009, 2010, 2011
3
#   Free Software Foundation, Inc.
4
#
5
# This file is part of the GNU Binutils.
6
#
7
# This program is free software; you can redistribute it and/or modify
8
# it under the terms of the GNU General Public License as published by
9
# the Free Software Foundation; either version 3 of the License, or
10
# (at your option) any later version.
11
#
12
# This program is distributed in the hope that it will be useful,
13
# but WITHOUT ANY WARRANTY; without even the implied warranty of
14
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15
# GNU General Public License for more details.
16
#
17
# You should have received a copy of the GNU General Public License
18
# along with this program; if not, write to the Free Software
19
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20
# MA 02110-1301, USA.
21
#
22
 
23
# This file is sourced from elf32.em, and defines extra spu specific
24
# features.
25
#
26
fragment <
27
#include "ldctor.h"
28
#include "elf32-spu.h"
29
 
30
static void spu_place_special_section (asection *, asection *, const char *);
31
static bfd_size_type spu_elf_load_ovl_mgr (void);
32
static FILE *spu_elf_open_overlay_script (void);
33
static void spu_elf_relink (void);
34
 
35
static struct spu_elf_params params =
36
{
37
  &spu_place_special_section,
38
  &spu_elf_load_ovl_mgr,
39
  &spu_elf_open_overlay_script,
40
  &spu_elf_relink,
41
  0, ovly_normal, 0, 0, 0, 0, 0, 0, 0, 0,
42
  0, 0x3ffff,
43
  1, 0, 16, 0, 0, 2000
44
};
45
 
46
static unsigned int no_overlays = 0;
47
static unsigned int num_lines_set = 0;
48
static unsigned int line_size_set = 0;
49
static char *auto_overlay_file = 0;
50
int my_argc;
51
char **my_argv;
52
 
53
static const char ovl_mgr[] = {
54
EOF
55
 
56
if ! cat ${srcdir}/emultempl/spu_ovl.o_c >> e${EMULATION_NAME}.c
57
then
58
  echo >&2 "Missing ${srcdir}/emultempl/spu_ovl.o_c"
59
  echo >&2 "You must build gas/as-new with --target=spu"
60
  exit 1
61
fi
62
 
63
fragment <
64
};
65
 
66
static const char icache_mgr[] = {
67
EOF
68
 
69
if ! cat ${srcdir}/emultempl/spu_icache.o_c >> e${EMULATION_NAME}.c
70
then
71
  echo >&2 "Missing ${srcdir}/emultempl/spu_icache.o_c"
72
  echo >&2 "You must build gas/as-new with --target=spu"
73
  exit 1
74
fi
75
 
76
fragment <
77
};
78
 
79
static const struct _ovl_stream ovl_mgr_stream = {
80
  ovl_mgr,
81
  ovl_mgr + sizeof (ovl_mgr)
82
};
83
 
84
static const struct _ovl_stream icache_mgr_stream = {
85
  icache_mgr,
86
  icache_mgr + sizeof (icache_mgr)
87
};
88
 
89
 
90
static int
91
is_spu_target (void)
92
{
93
  extern const bfd_target bfd_elf32_spu_vec;
94
 
95
  return link_info.output_bfd->xvec == &bfd_elf32_spu_vec;
96
}
97
 
98
/* Create our note section.  */
99
 
100
static void
101
spu_after_open (void)
102
{
103
  if (is_spu_target ())
104
    {
105
      /* Pass params to backend.  */
106
      if ((params.auto_overlay & AUTO_OVERLAY) == 0)
107
        params.auto_overlay = 0;
108
      params.emit_stub_syms |= link_info.emitrelocations;
109
      spu_elf_setup (&link_info, ¶ms);
110
 
111
      if (link_info.relocatable)
112
        lang_add_unique (".text.ia.*");
113
 
114
      if (!link_info.relocatable
115
          && link_info.input_bfds != NULL
116
          && !spu_elf_create_sections (&link_info))
117
        einfo ("%X%P: can not create note section: %E\n");
118
    }
119
 
120
  gld${EMULATION_NAME}_after_open ();
121
}
122
 
123
/* If O is NULL, add section S at the end of output section OUTPUT_NAME.
124
   If O is not NULL, add section S at the beginning of output section O,
125
   except for soft-icache which adds to the end.
126
 
127
   Really, we should be duplicating ldlang.c map_input_to_output_sections
128
   logic here, ie. using the linker script to find where the section
129
   goes.  That's rather a lot of code, and we don't want to run
130
   map_input_to_output_sections again because most sections are already
131
   mapped.  So cheat, and put the section in a fixed place, ignoring any
132
   attempt via a linker script to put .stub, .ovtab, and built-in
133
   overlay manager code somewhere else.  */
134
 
135
static void
136
spu_place_special_section (asection *s, asection *o, const char *output_name)
137
{
138
  lang_output_section_statement_type *os;
139
 
140
  if (o != NULL)
141
    output_name = o->name;
142
  os = lang_output_section_find (output_name);
143
  if (os == NULL)
144
    {
145
      os = gld${EMULATION_NAME}_place_orphan (s, output_name, 0);
146
      os->addr_tree = NULL;
147
    }
148
  else if (params.ovly_flavour != ovly_soft_icache
149
           && o != NULL && os->children.head != NULL)
150
    {
151
      lang_statement_list_type add;
152
 
153
      lang_list_init (&add);
154
      lang_add_section (&add, s, os);
155
      *add.tail = os->children.head;
156
      os->children.head = add.head;
157
    }
158
  else
159
    {
160
      if (params.ovly_flavour == ovly_soft_icache && o != NULL)
161
        {
162
          /* Pad this stub section so that it finishes at the
163
             end of the icache line.  */
164
          etree_type *e_size;
165
 
166
          push_stat_ptr (&os->children);
167
          e_size = exp_intop (params.line_size - s->size);
168
          lang_add_assignment (exp_assign (".", e_size));
169
          pop_stat_ptr ();
170
        }
171
      lang_add_section (&os->children, s, os);
172
    }
173
 
174
  s->output_section->size += s->size;
175
}
176
 
177
/* Load built-in overlay manager.  */
178
 
179
static bfd_size_type
180
spu_elf_load_ovl_mgr (void)
181
{
182
  struct elf_link_hash_entry *h;
183
  const char *ovly_mgr_entry;
184
  const struct _ovl_stream *mgr_stream;
185
  bfd_size_type total = 0;
186
 
187
  ovly_mgr_entry = "__ovly_load";
188
  mgr_stream = &ovl_mgr_stream;
189
  if (params.ovly_flavour == ovly_soft_icache)
190
    {
191
      ovly_mgr_entry = "__icache_br_handler";
192
      mgr_stream = &icache_mgr_stream;
193
    }
194
  h = elf_link_hash_lookup (elf_hash_table (&link_info),
195
                            ovly_mgr_entry, FALSE, FALSE, FALSE);
196
 
197
  if (h != NULL
198
      && (h->root.type == bfd_link_hash_defined
199
          || h->root.type == bfd_link_hash_defweak)
200
      && h->def_regular)
201
    {
202
      /* User supplied __ovly_load.  */
203
    }
204
  else if (mgr_stream->start == mgr_stream->end)
205
    einfo ("%F%P: no built-in overlay manager\n");
206
  else
207
    {
208
      lang_input_statement_type *ovl_is;
209
 
210
      ovl_is = lang_add_input_file ("builtin ovl_mgr",
211
                                    lang_input_file_is_file_enum,
212
                                    NULL);
213
 
214
      if (!spu_elf_open_builtin_lib (&ovl_is->the_bfd, mgr_stream))
215
        einfo ("%X%P: can not open built-in overlay manager: %E\n");
216
      else
217
        {
218
          asection *in;
219
 
220
          if (!load_symbols (ovl_is, NULL))
221
            einfo ("%X%P: can not load built-in overlay manager: %E\n");
222
 
223
          /* Map overlay manager sections to output sections.
224
             First try for a matching output section name, if that
225
             fails then try mapping .abc.xyz to .abc, otherwise map
226
             to .text.  */
227
          for (in = ovl_is->the_bfd->sections; in != NULL; in = in->next)
228
            if ((in->flags & (SEC_ALLOC | SEC_LOAD))
229
                == (SEC_ALLOC | SEC_LOAD))
230
              {
231
                const char *oname = in->name;
232
                if (strncmp (in->name, ".ovl.init", 9) != 0)
233
                  {
234
                    total += in->size;
235
                    if (!lang_output_section_find (oname))
236
                      {
237
                        lang_output_section_statement_type *os = NULL;
238
                        char *p = strchr (oname + 1, '.');
239
                        if (p != NULL)
240
                          {
241
                            size_t len = p - oname;
242
                            p = memcpy (xmalloc (len + 1), oname, len);
243
                            p[len] = '\0';
244
                            os = lang_output_section_find (p);
245
                            free (p);
246
                          }
247
                        if (os != NULL)
248
                          oname = os->name;
249
                        else
250
                          oname = ".text";
251
                      }
252
                  }
253
 
254
                spu_place_special_section (in, NULL, oname);
255
              }
256
        }
257
    }
258
  return total;
259
}
260
 
261
/* Go find if we need to do anything special for overlays.  */
262
 
263
static void
264
spu_before_allocation (void)
265
{
266
  if (is_spu_target ()
267
      && !link_info.relocatable
268
      && !no_overlays)
269
    {
270
      int ret;
271
 
272
      /* Size the sections.  This is premature, but we need to know the
273
         rough layout so that overlays can be found.  */
274
      expld.phase = lang_mark_phase_enum;
275
      expld.dataseg.phase = exp_dataseg_none;
276
      one_lang_size_sections_pass (NULL, TRUE);
277
 
278
      /* Find overlays by inspecting section vmas.  */
279
      ret = spu_elf_find_overlays (&link_info);
280
      if (ret == 0)
281
        einfo ("%X%P: can not find overlays: %E\n");
282
      else if (ret == 2)
283
        {
284
          lang_output_section_statement_type *os;
285
 
286
          if (params.auto_overlay != 0)
287
            {
288
              einfo ("%P: --auto-overlay ignored with user overlay script\n");
289
              params.auto_overlay = 0;
290
            }
291
 
292
          /* Ensure alignment of overlay sections is sufficient.  */
293
          for (os = &lang_output_section_statement.head->output_section_statement;
294
               os != NULL;
295
               os = os->next)
296
            if (os->bfd_section != NULL
297
                && spu_elf_section_data (os->bfd_section) != NULL
298
                && spu_elf_section_data (os->bfd_section)->u.o.ovl_index != 0)
299
              {
300
                if (os->bfd_section->alignment_power < 4)
301
                  os->bfd_section->alignment_power = 4;
302
 
303
                /* Also ensure size rounds up.  */
304
                os->block_value = 16;
305
              }
306
 
307
          ret = spu_elf_size_stubs (&link_info);
308
          if (ret == 0)
309
            einfo ("%X%P: can not size overlay stubs: %E\n");
310
          else if (ret == 2)
311
            spu_elf_load_ovl_mgr ();
312
 
313
          spu_elf_place_overlay_data (&link_info);
314
        }
315
 
316
      /* We must not cache anything from the preliminary sizing.  */
317
      lang_reset_memory_regions ();
318
    }
319
 
320
  if (is_spu_target ()
321
      && !link_info.relocatable)
322
    spu_elf_size_sections (link_info.output_bfd, &link_info);
323
 
324
  gld${EMULATION_NAME}_before_allocation ();
325
}
326
 
327
struct tflist {
328
  struct tflist *next;
329
  char name[9];
330
};
331
 
332
static struct tflist *tmp_file_list;
333
 
334
static void clean_tmp (void)
335
{
336
  for (; tmp_file_list != NULL; tmp_file_list = tmp_file_list->next)
337
    unlink (tmp_file_list->name);
338
}
339
 
340
static int
341
new_tmp_file (char **fname)
342
{
343
  struct tflist *tf;
344
  int fd;
345
 
346
  if (tmp_file_list == NULL)
347
    atexit (clean_tmp);
348
  tf = xmalloc (sizeof (*tf));
349
  tf->next = tmp_file_list;
350
  tmp_file_list = tf;
351
  memcpy (tf->name, "ldXXXXXX", sizeof (tf->name));
352
  *fname = tf->name;
353
#ifdef HAVE_MKSTEMP
354
  fd = mkstemp (*fname);
355
#else
356
  *fname = mktemp (*fname);
357
  if (*fname == NULL)
358
    return -1;
359
  fd = open (*fname, O_RDWR | O_CREAT | O_EXCL, 0600);
360
#endif
361
  return fd;
362
}
363
 
364
static FILE *
365
spu_elf_open_overlay_script (void)
366
{
367
  FILE *script = NULL;
368
 
369
  if (auto_overlay_file == NULL)
370
    {
371
      int fd = new_tmp_file (&auto_overlay_file);
372
      if (fd == -1)
373
        goto file_err;
374
      script = fdopen (fd, "w");
375
    }
376
  else
377
    script = fopen (auto_overlay_file, "w");
378
 
379
  if (script == NULL)
380
    {
381
    file_err:
382
      einfo ("%F%P: can not open script: %E\n");
383
    }
384
  return script;
385
}
386
 
387 166 khays
#include 
388
 
389 145 khays
static void
390
spu_elf_relink (void)
391
{
392 166 khays
  const char *pex_return;
393
  int status;
394 145 khays
  char **argv = xmalloc ((my_argc + 4) * sizeof (*argv));
395
 
396
  memcpy (argv, my_argv, my_argc * sizeof (*argv));
397
  argv[my_argc++] = "--no-auto-overlay";
398
  if (tmp_file_list->name == auto_overlay_file)
399
    argv[my_argc - 1] = concat (argv[my_argc - 1], "=",
400
                                auto_overlay_file, (const char *) NULL);
401
  argv[my_argc++] = "-T";
402
  argv[my_argc++] = auto_overlay_file;
403
  argv[my_argc] = 0;
404 166 khays
 
405
  pex_return = pex_one (PEX_SEARCH | PEX_LAST, (const char *) argv[0],
406
                        (char * const *) argv, (const char *) argv[0],
407
                        NULL, NULL, & status, & errno);
408
  if (pex_return != NULL)
409
    {
410
      perror (pex_return);
411
      _exit (127);
412
    }
413
  exit (status);
414 145 khays
}
415
 
416
/* Final emulation specific call.  */
417
 
418
static void
419
gld${EMULATION_NAME}_finish (void)
420
{
421
  if (is_spu_target ())
422
    {
423
      if (params.local_store_lo < params.local_store_hi)
424
        {
425
          asection *s;
426
 
427
          s = spu_elf_check_vma (&link_info);
428
          if (s != NULL && !params.auto_overlay)
429
            einfo ("%X%P: %A exceeds local store range\n", s);
430
        }
431
      else if (params.auto_overlay)
432
        einfo ("%P: --auto-overlay ignored with zero local store range\n");
433
    }
434
 
435
  finish_default ();
436
}
437
 
438
static char *
439
gld${EMULATION_NAME}_choose_target (int argc, char *argv[])
440
{
441
  my_argc = argc;
442
  my_argv = argv;
443
  return ldemul_default_target (argc, argv);
444
}
445
 
446
EOF
447
 
448
if grep -q 'ld_elf.*ppc.*_emulation' ldemul-list.h; then
449
  fragment <
450
#include 
451
#include "filenames.h"
452
#include "libiberty.h"
453
 
454
static const char *
455
base_name (const char *path)
456
{
457
  const char *file = strrchr (path, '/');
458
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
459
  {
460
    char *bslash = strrchr (path, '\\\\');
461
 
462
    if (file == NULL || (bslash != NULL && bslash > file))
463
      file = bslash;
464
    if (file == NULL
465
        && path[0] != '\0'
466
        && path[1] == ':')
467
      file = path + 1;
468
  }
469
#endif
470
  if (file == NULL)
471
    file = path;
472
  else
473
    ++file;
474
  return file;
475
}
476
 
477
/* This function is called when building a ppc32 or ppc64 executable
478
   to handle embedded spu images.  */
479
extern bfd_boolean embedded_spu_file (lang_input_statement_type *, const char *);
480
 
481
bfd_boolean
482
embedded_spu_file (lang_input_statement_type *entry, const char *flags)
483
{
484
  const char *cmd[6];
485
  const char *pex_return;
486
  const char *sym;
487
  char *handle, *p;
488
  char *oname;
489
  int fd;
490
  int status;
491
  union lang_statement_union **old_stat_tail;
492
  union lang_statement_union **old_file_tail;
493
  union lang_statement_union *new_ent;
494
  lang_input_statement_type *search;
495
 
496
  if (entry->the_bfd->format != bfd_object
497
      || strcmp (entry->the_bfd->xvec->name, "elf32-spu") != 0
498
      || (entry->the_bfd->tdata.elf_obj_data->elf_header->e_type != ET_EXEC
499
          && entry->the_bfd->tdata.elf_obj_data->elf_header->e_type != ET_DYN))
500
    return FALSE;
501
 
502
  /* Use the filename as the symbol marking the program handle struct.  */
503
  sym = base_name (entry->the_bfd->filename);
504
 
505
  handle = xstrdup (sym);
506
  for (p = handle; *p; ++p)
507
    if (!(ISALNUM (*p) || *p == '$' || *p == '.'))
508
      *p = '_';
509
 
510
  fd = new_tmp_file (&oname);
511
  if (fd == -1)
512
    return FALSE;
513
  close (fd);
514
 
515
  for (search = (lang_input_statement_type *) input_file_chain.head;
516
       search != NULL;
517
       search = (lang_input_statement_type *) search->next_real_file)
518
    if (search->filename != NULL)
519
      {
520
        const char *infile = base_name (search->filename);
521
 
522
        if (strncmp (infile, "crtbegin", 8) == 0)
523
          {
524
            if (infile[8] == 'S')
525
              flags = concat (flags, " -fPIC", (const char *) NULL);
526
            else if (infile[8] == 'T')
527
              flags = concat (flags, " -fpie", (const char *) NULL);
528
            break;
529
          }
530
      }
531
 
532
  cmd[0] = EMBEDSPU;
533
  cmd[1] = flags;
534
  cmd[2] = handle;
535
  cmd[3] = entry->the_bfd->filename;
536
  cmd[4] = oname;
537
  cmd[5] = NULL;
538
  if (trace_file_tries)
539
    {
540
      info_msg (_("running: %s \"%s\" \"%s\" \"%s\" \"%s\"\n"),
541
                cmd[0], cmd[1], cmd[2], cmd[3], cmd[4]);
542
      fflush (stdout);
543
    }
544
 
545
  pex_return = pex_one (PEX_SEARCH | PEX_LAST, cmd[0], (char *const *) cmd,
546
                        cmd[0], NULL, NULL, &status, &errno);
547
  if (NULL != pex_return) {
548
      if (strcmp ("embedspu", EMBEDSPU) != 0)
549
        {
550
          cmd[0] = "embedspu";
551
          pex_return = pex_one (PEX_SEARCH | PEX_LAST, cmd[0], (char *const *) cmd,
552
                                cmd[0], NULL, NULL, &status, &errno);
553
        }
554
      if (NULL != pex_return) {
555
        perror (pex_return);
556
        _exit (127);
557
      }
558
  }
559
  if (status)
560
    return FALSE;
561
 
562
 
563
  old_stat_tail = stat_ptr->tail;
564
  old_file_tail = input_file_chain.tail;
565
  if (lang_add_input_file (oname, lang_input_file_is_file_enum, NULL) == NULL)
566
    return FALSE;
567
 
568
  /* lang_add_input_file puts the new list entry at the end of the statement
569
     and input file lists.  Move it to just after the current entry.  */
570
  new_ent = *old_stat_tail;
571
  *old_stat_tail = NULL;
572
  stat_ptr->tail = old_stat_tail;
573
  *old_file_tail = NULL;
574
  input_file_chain.tail = old_file_tail;
575
  new_ent->header.next = entry->header.next;
576
  entry->header.next = new_ent;
577
  new_ent->input_statement.next_real_file = entry->next_real_file;
578
  entry->next_real_file = new_ent;
579
 
580
  /* Ensure bfd sections are excluded from the output.  */
581
  bfd_section_list_clear (entry->the_bfd);
582
  entry->loaded = TRUE;
583
  return TRUE;
584
}
585
 
586
EOF
587
fi
588
 
589
# Define some shell vars to insert bits of code into the standard elf
590
# parse_args and list_options functions.
591
#
592
PARSE_AND_LIST_PROLOGUE='
593
#define OPTION_SPU_PLUGIN               301
594
#define OPTION_SPU_NO_OVERLAYS          (OPTION_SPU_PLUGIN + 1)
595
#define OPTION_SPU_COMPACT_STUBS        (OPTION_SPU_NO_OVERLAYS + 1)
596
#define OPTION_SPU_STUB_SYMS            (OPTION_SPU_COMPACT_STUBS + 1)
597
#define OPTION_SPU_NON_OVERLAY_STUBS    (OPTION_SPU_STUB_SYMS + 1)
598
#define OPTION_SPU_LOCAL_STORE          (OPTION_SPU_NON_OVERLAY_STUBS + 1)
599
#define OPTION_SPU_STACK_ANALYSIS       (OPTION_SPU_LOCAL_STORE + 1)
600
#define OPTION_SPU_STACK_SYMS           (OPTION_SPU_STACK_ANALYSIS + 1)
601
#define OPTION_SPU_AUTO_OVERLAY         (OPTION_SPU_STACK_SYMS + 1)
602
#define OPTION_SPU_AUTO_RELINK          (OPTION_SPU_AUTO_OVERLAY + 1)
603
#define OPTION_SPU_OVERLAY_RODATA       (OPTION_SPU_AUTO_RELINK + 1)
604
#define OPTION_SPU_SOFT_ICACHE          (OPTION_SPU_OVERLAY_RODATA + 1)
605
#define OPTION_SPU_LINE_SIZE            (OPTION_SPU_SOFT_ICACHE + 1)
606
#define OPTION_SPU_NUM_LINES            (OPTION_SPU_LINE_SIZE + 1)
607
#define OPTION_SPU_LRLIVE               (OPTION_SPU_NUM_LINES + 1)
608
#define OPTION_SPU_NON_IA_TEXT          (OPTION_SPU_LRLIVE + 1)
609
#define OPTION_SPU_FIXED_SPACE          (OPTION_SPU_NON_IA_TEXT + 1)
610
#define OPTION_SPU_RESERVED_SPACE       (OPTION_SPU_FIXED_SPACE + 1)
611
#define OPTION_SPU_EXTRA_STACK          (OPTION_SPU_RESERVED_SPACE + 1)
612
#define OPTION_SPU_NO_AUTO_OVERLAY      (OPTION_SPU_EXTRA_STACK + 1)
613
#define OPTION_SPU_EMIT_FIXUPS          (OPTION_SPU_NO_AUTO_OVERLAY + 1)
614
'
615
 
616
PARSE_AND_LIST_LONGOPTS='
617
  { "plugin", no_argument, NULL, OPTION_SPU_PLUGIN },
618
  { "soft-icache", no_argument, NULL, OPTION_SPU_SOFT_ICACHE },
619
  { "lrlive-analysis", no_argument, NULL, OPTION_SPU_LRLIVE },
620
  { "num-lines", required_argument, NULL, OPTION_SPU_NUM_LINES },
621
  { "line-size", required_argument, NULL, OPTION_SPU_LINE_SIZE },
622
  { "non-ia-text", no_argument, NULL, OPTION_SPU_NON_IA_TEXT },
623
  { "no-overlays", no_argument, NULL, OPTION_SPU_NO_OVERLAYS },
624
  { "compact-stubs", no_argument, NULL, OPTION_SPU_COMPACT_STUBS },
625
  { "emit-stub-syms", no_argument, NULL, OPTION_SPU_STUB_SYMS },
626
  { "extra-overlay-stubs", no_argument, NULL, OPTION_SPU_NON_OVERLAY_STUBS },
627
  { "local-store", required_argument, NULL, OPTION_SPU_LOCAL_STORE },
628
  { "stack-analysis", no_argument, NULL, OPTION_SPU_STACK_ANALYSIS },
629
  { "emit-stack-syms", no_argument, NULL, OPTION_SPU_STACK_SYMS },
630
  { "auto-overlay", optional_argument, NULL, OPTION_SPU_AUTO_OVERLAY },
631
  { "auto-relink", no_argument, NULL, OPTION_SPU_AUTO_RELINK },
632
  { "overlay-rodata", no_argument, NULL, OPTION_SPU_OVERLAY_RODATA },
633
  { "num-regions", required_argument, NULL, OPTION_SPU_NUM_LINES },
634
  { "region-size", required_argument, NULL, OPTION_SPU_LINE_SIZE },
635
  { "fixed-space", required_argument, NULL, OPTION_SPU_FIXED_SPACE },
636
  { "reserved-space", required_argument, NULL, OPTION_SPU_RESERVED_SPACE },
637
  { "extra-stack-space", required_argument, NULL, OPTION_SPU_EXTRA_STACK },
638
  { "no-auto-overlay", optional_argument, NULL, OPTION_SPU_NO_AUTO_OVERLAY },
639
  { "emit-fixups", optional_argument, NULL, OPTION_SPU_EMIT_FIXUPS },
640
'
641
 
642
PARSE_AND_LIST_OPTIONS='
643
  fprintf (file, _("\
644
  --plugin                    Make SPU plugin.\n\
645
  --no-overlays               No overlay handling.\n\
646
  --compact-stubs             Use smaller and possibly slower call stubs.\n\
647
  --emit-stub-syms            Add symbols on overlay call stubs.\n\
648
  --extra-overlay-stubs       Add stubs on all calls out of overlay regions.\n\
649
  --local-store=lo:hi         Valid address range.\n\
650
  --stack-analysis            Estimate maximum stack requirement.\n\
651
  --emit-stack-syms           Add sym giving stack needed for each func.\n\
652
  --auto-overlay [=filename]  Create an overlay script in filename if\n\
653
                              executable does not fit in local store.\n\
654
  --auto-relink               Rerun linker using auto-overlay script.\n\
655
  --overlay-rodata            Place read-only data with associated function\n\
656
                              code in overlays.\n\
657
  --num-regions               Number of overlay buffers (default 1).\n\
658
  --region-size               Size of overlay buffers (default 0, auto).\n\
659
  --fixed-space=bytes         Local store for non-overlay code and data.\n\
660
  --reserved-space=bytes      Local store for stack and heap.  If not specified\n\
661
                              ld will estimate stack size and assume no heap.\n\
662
  --extra-stack-space=bytes   Space for negative sp access (default 2000) if\n\
663
                              --reserved-space not given.\n\
664
  --soft-icache               Generate software icache overlays.\n\
665
  --num-lines                 Number of soft-icache lines (default 32).\n\
666
  --line-size                 Size of soft-icache lines (default 1k).\n\
667
  --non-ia-text               Allow non-icache code in icache lines.\n\
668
  --lrlive-analysis           Scan function prologue for lr liveness.\n"
669
                   ));
670
'
671
 
672
PARSE_AND_LIST_ARGS_CASES='
673
    case OPTION_SPU_PLUGIN:
674
      spu_elf_plugin (1);
675
      break;
676
 
677
    case OPTION_SPU_NO_OVERLAYS:
678
      no_overlays = 1;
679
      break;
680
 
681
    case OPTION_SPU_COMPACT_STUBS:
682
      params.compact_stub = 1;
683
      break;
684
 
685
    case OPTION_SPU_STUB_SYMS:
686
      params.emit_stub_syms = 1;
687
      break;
688
 
689
    case OPTION_SPU_NON_OVERLAY_STUBS:
690
      params.non_overlay_stubs = 1;
691
      break;
692
 
693
    case OPTION_SPU_LOCAL_STORE:
694
      {
695
        char *end;
696
        params.local_store_lo = strtoul (optarg, &end, 0);
697
        if (*end == '\'':'\'')
698
          {
699
            params.local_store_hi = strtoul (end + 1, &end, 0);
700
            if (*end == 0)
701
              break;
702
          }
703
        einfo (_("%P%F: invalid --local-store address range `%s'\''\n"), optarg);
704
      }
705
      break;
706
 
707
    case OPTION_SPU_STACK_ANALYSIS:
708
      params.stack_analysis = 1;
709
      break;
710
 
711
    case OPTION_SPU_STACK_SYMS:
712
      params.emit_stack_syms = 1;
713
      break;
714
 
715
    case OPTION_SPU_AUTO_OVERLAY:
716
      params.auto_overlay |= 1;
717
      if (optarg != NULL)
718
        {
719
          auto_overlay_file = optarg;
720
          break;
721
        }
722
      /* Fall thru */
723
 
724
    case OPTION_SPU_AUTO_RELINK:
725
      params.auto_overlay |= 2;
726
      break;
727
 
728
    case OPTION_SPU_OVERLAY_RODATA:
729
      params.auto_overlay |= 4;
730
      break;
731
 
732
    case OPTION_SPU_SOFT_ICACHE:
733
      params.ovly_flavour = ovly_soft_icache;
734
      /* Software i-cache stubs are always "compact".  */
735
      params.compact_stub = 1;
736
      if (!num_lines_set)
737
        params.num_lines = 32;
738
      else if ((params.num_lines & -params.num_lines) != params.num_lines)
739
        einfo (_("%P%F: invalid --num-lines/--num-regions `%u'\''\n"),
740
               params.num_lines);
741
      if (!line_size_set)
742
        params.line_size = 1024;
743
      else if ((params.line_size & -params.line_size) != params.line_size)
744
        einfo (_("%P%F: invalid --line-size/--region-size `%u'\''\n"),
745
               params.line_size);
746
      break;
747
 
748
    case OPTION_SPU_LRLIVE:
749
      params.lrlive_analysis = 1;
750
      break;
751
 
752
    case OPTION_SPU_NON_IA_TEXT:
753
      params.non_ia_text = 1;
754
      break;
755
 
756
    case OPTION_SPU_NUM_LINES:
757
      {
758
        char *end;
759
        params.num_lines = strtoul (optarg, &end, 0);
760
        num_lines_set = 1;
761
        if (*end == 0
762
            && (params.ovly_flavour != ovly_soft_icache
763
                || (params.num_lines & -params.num_lines) == params.num_lines))
764
          break;
765
        einfo (_("%P%F: invalid --num-lines/--num-regions `%s'\''\n"), optarg);
766
      }
767
      break;
768
 
769
    case OPTION_SPU_LINE_SIZE:
770
      {
771
        char *end;
772
        params.line_size = strtoul (optarg, &end, 0);
773
        line_size_set = 1;
774
        if (*end == 0
775
            && (params.ovly_flavour != ovly_soft_icache
776
                || (params.line_size & -params.line_size) == params.line_size))
777
          break;
778
        einfo (_("%P%F: invalid --line-size/--region-size `%s'\''\n"), optarg);
779
      }
780
      break;
781
 
782
    case OPTION_SPU_FIXED_SPACE:
783
      {
784
        char *end;
785
        params.auto_overlay_fixed = strtoul (optarg, &end, 0);
786
        if (*end != 0)
787
          einfo (_("%P%F: invalid --fixed-space value `%s'\''\n"), optarg);
788
      }
789
      break;
790
 
791
    case OPTION_SPU_RESERVED_SPACE:
792
      {
793
        char *end;
794
        params.auto_overlay_reserved = strtoul (optarg, &end, 0);
795
        if (*end != 0)
796
          einfo (_("%P%F: invalid --reserved-space value `%s'\''\n"), optarg);
797
      }
798
      break;
799
 
800
    case OPTION_SPU_EXTRA_STACK:
801
      {
802
        char *end;
803
        params.extra_stack_space = strtol (optarg, &end, 0);
804
        if (*end != 0)
805
          einfo (_("%P%F: invalid --extra-stack-space value `%s'\''\n"), optarg);
806
      }
807
      break;
808
 
809
    case OPTION_SPU_NO_AUTO_OVERLAY:
810
      params.auto_overlay = 0;
811
      if (optarg != NULL)
812
        {
813
          struct tflist *tf;
814
          size_t len;
815
 
816
          if (tmp_file_list == NULL)
817
            atexit (clean_tmp);
818
 
819
          len = strlen (optarg) + 1;
820
          tf = xmalloc (sizeof (*tf) - sizeof (tf->name) + len);
821
          memcpy (tf->name, optarg, len);
822
          tf->next = tmp_file_list;
823
          tmp_file_list = tf;
824
          break;
825
        }
826
      break;
827
 
828
    case OPTION_SPU_EMIT_FIXUPS:
829
      params.emit_fixups = 1;
830
      break;
831
'
832
 
833
LDEMUL_AFTER_OPEN=spu_after_open
834
LDEMUL_BEFORE_ALLOCATION=spu_before_allocation
835
LDEMUL_FINISH=gld${EMULATION_NAME}_finish
836
LDEMUL_CHOOSE_TARGET=gld${EMULATION_NAME}_choose_target

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