ld/emultempl/spuelf.em

   1 # This shell script emits a C file. -*- C -*-
   2 #   Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
   3 #
   4 # This file is part of the GNU Binutils.
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  19 # MA 02110-1301, USA.
  20 #
  21
  22 # This file is sourced from elf32.em, and defines extra spu specific
  23 # features.
  24 #
  25 fragment <<EOF
  26 #include "ldctor.h"
  27 #include "elf32-spu.h"
  28
  29 /* Non-zero if no overlay processing should be done.  */
  30 static int no_overlays = 0;
  31
  32 /* Non-zero if we want stubs on all calls out of overlay regions.  */
  33 static int non_overlay_stubs = 0;
  34
  35 /* Whether to emit symbols for stubs.  */
  36 static int emit_stub_syms = 0;
  37
  38 /* Non-zero to perform stack space analysis.  */
  39 static int stack_analysis = 0;
  40
  41 /* Whether to emit symbols with stack requirements for each function.  */
  42 static int emit_stack_syms = 0;
  43
  44 /* Range of valid addresses for loadable sections.  */
  45 static bfd_vma local_store_lo = 0;
  46 static bfd_vma local_store_hi = 0x3ffff;
  47
  48 /* Control --auto-overlay feature.  */
  49 static int auto_overlay = 0;
  50 static char *auto_overlay_file = 0;
  51 static unsigned int auto_overlay_fixed = 0;
  52 static unsigned int auto_overlay_reserved = 0;
  53 int my_argc;
  54 char **my_argv;
  55
  56 static const char ovl_mgr[] = {
  57 EOF
  58
  59 ../binutils/bin2c < ${srcdir}/emultempl/spu_ovl.o >> e${EMULATION_NAME}.c
  60
  61 fragment <<EOF
  62 };
  63
  64 static const struct _ovl_stream ovl_mgr_stream = {
  65   ovl_mgr,
  66   ovl_mgr + sizeof (ovl_mgr)
  67 };
  68
  69
  70 static int
  71 is_spu_target (void)
  72 {
  73   extern const bfd_target bfd_elf32_spu_vec;
  74
  75   return link_info.output_bfd->xvec == &bfd_elf32_spu_vec;
  76 }
  77
  78 /* Create our note section.  */
  79
  80 static void
  81 spu_after_open (void)
  82 {
  83   if (is_spu_target ()
  84       && !link_info.relocatable
  85       && link_info.input_bfds != NULL
  86       && !spu_elf_create_sections (&link_info,
  87                                    stack_analysis, emit_stack_syms))
  88     einfo ("%X%P: can not create note section: %E\n");
  89
  90   gld${EMULATION_NAME}_after_open ();
  91 }
  92
  93 /* If O is NULL, add section S at the end of output section OUTPUT_NAME.
  94    If O is not NULL, add section S at the beginning of output section O.
  95
  96    Really, we should be duplicating ldlang.c map_input_to_output_sections
  97    logic here, ie. using the linker script to find where the section
  98    goes.  That's rather a lot of code, and we don't want to run
  99    map_input_to_output_sections again because most sections are already
 100    mapped.  So cheat, and put the section in a fixed place, ignoring any
 101    attempt via a linker script to put .stub, .ovtab, and built-in
 102    overlay manager code somewhere else.  */
 103
 104 static void
 105 spu_place_special_section (asection *s, asection *o, const char *output_name)
 106 {
 107   lang_output_section_statement_type *os;
 108
 109   os = lang_output_section_find (o != NULL ? o->name : output_name);
 110   if (os == NULL)
 111     {
 112       const char *save = s->name;
 113       s->name = output_name;
 114       gld${EMULATION_NAME}_place_orphan (s);
 115       s->name = save;
 116     }
 117   else if (o != NULL && os->children.head != NULL)
 118     {
 119       lang_statement_list_type add;
 120
 121       lang_list_init (&add);
 122       lang_add_section (&add, s, os);
 123       *add.tail = os->children.head;
 124       os->children.head = add.head;
 125     }
 126   else
 127     lang_add_section (&os->children, s, os);
 128
 129   s->output_section->size += s->size;
 130 }
 131
 132 /* Load built-in overlay manager, and tweak overlay section alignment.  */
 133
 134 static void
 135 spu_elf_load_ovl_mgr (void)
 136 {
 137   lang_output_section_statement_type *os;
 138   struct elf_link_hash_entry *h;
 139
 140   h = elf_link_hash_lookup (elf_hash_table (&link_info),
 141                             "__ovly_load", FALSE, FALSE, FALSE);
 142
 143   if (h != NULL
 144       && (h->root.type == bfd_link_hash_defined
 145           || h->root.type == bfd_link_hash_defweak)
 146       && h->def_regular)
 147     {
 148       /* User supplied __ovly_load.  */
 149     }
 150   else if (ovl_mgr_stream.start == ovl_mgr_stream.end)
 151     einfo ("%F%P: no built-in overlay manager\n");
 152   else
 153     {
 154       lang_input_statement_type *ovl_is;
 155
 156       ovl_is = lang_add_input_file ("builtin ovl_mgr",
 157                                     lang_input_file_is_file_enum,
 158                                     NULL);
 159
 160       if (!spu_elf_open_builtin_lib (&ovl_is->the_bfd, &ovl_mgr_stream))
 161         einfo ("%X%P: can not open built-in overlay manager: %E\n");
 162       else
 163         {
 164           asection *in;
 165
 166           if (!load_symbols (ovl_is, NULL))
 167             einfo ("%X%P: can not load built-in overlay manager: %E\n");
 168
 169           /* Map overlay manager sections to output sections.  */
 170           for (in = ovl_is->the_bfd->sections; in != NULL; in = in->next)
 171             if ((in->flags & (SEC_ALLOC | SEC_LOAD))
 172                 == (SEC_ALLOC | SEC_LOAD))
 173               spu_place_special_section (in, NULL, ".text");
 174         }
 175     }
 176
 177   /* Ensure alignment of overlay sections is sufficient.  */
 178   for (os = &lang_output_section_statement.head->output_section_statement;
 179        os != NULL;
 180        os = os->next)
 181     if (os->bfd_section != NULL
 182         && spu_elf_section_data (os->bfd_section) != NULL
 183         && spu_elf_section_data (os->bfd_section)->u.o.ovl_index != 0)
 184       {
 185         if (os->bfd_section->alignment_power < 4)
 186           os->bfd_section->alignment_power = 4;
 187
 188         /* Also ensure size rounds up.  */
 189         os->block_value = 16;
 190       }
 191 }
 192
 193 /* Go find if we need to do anything special for overlays.  */
 194
 195 static void
 196 spu_before_allocation (void)
 197 {
 198   if (is_spu_target ()
 199       && !link_info.relocatable
 200       && !no_overlays)
 201     {
 202       /* Size the sections.  This is premature, but we need to know the
 203          rough layout so that overlays can be found.  */
 204       expld.phase = lang_mark_phase_enum;
 205       expld.dataseg.phase = exp_dataseg_none;
 206       one_lang_size_sections_pass (NULL, TRUE);
 207
 208       /* Find overlays by inspecting section vmas.  */
 209       if (spu_elf_find_overlays (&link_info))
 210         {
 211           int ret;
 212
 213           if (auto_overlay != 0)
 214             {
 215               einfo ("%P: --auto-overlay ignored with user overlay script\n");
 216               auto_overlay = 0;
 217             }
 218
 219           ret = spu_elf_size_stubs (&link_info,
 220                                     spu_place_special_section,
 221                                     non_overlay_stubs);
 222           if (ret == 0)
 223             einfo ("%X%P: can not size overlay stubs: %E\n");
 224           else if (ret == 2)
 225             spu_elf_load_ovl_mgr ();
 226         }
 227
 228       /* We must not cache anything from the preliminary sizing.  */
 229       lang_reset_memory_regions ();
 230     }
 231
 232   gld${EMULATION_NAME}_before_allocation ();
 233 }
 234
 235 struct tflist {
 236   struct tflist *next;
 237   char name[9];
 238 };
 239
 240 static struct tflist *tmp_file_list;
 241
 242 static void clean_tmp (void)
 243 {
 244   for (; tmp_file_list != NULL; tmp_file_list = tmp_file_list->next)
 245     unlink (tmp_file_list->name);
 246 }
 247
 248 static int
 249 new_tmp_file (char **fname)
 250 {
 251   struct tflist *tf;
 252   int fd;
 253
 254   if (tmp_file_list == NULL)
 255     atexit (clean_tmp);
 256   tf = xmalloc (sizeof (*tf));
 257   tf->next = tmp_file_list;
 258   tmp_file_list = tf;
 259   memcpy (tf->name, "ldXXXXXX", sizeof (tf->name));
 260   *fname = tf->name;
 261 #ifdef HAVE_MKSTEMP
 262   fd = mkstemp (*fname);
 263 #else
 264   *fname = mktemp (*fname);
 265   if (*fname == NULL)
 266     return -1;
 267   fd = open (fname, O_RDWR | O_CREAT | O_EXCL, 0600);
 268 #endif
 269   return fd;
 270 }
 271
 272 static FILE *
 273 spu_elf_open_overlay_script (void)
 274 {
 275   FILE *script = NULL;
 276
 277   if (auto_overlay_file == NULL)
 278     {
 279       int fd = new_tmp_file (&auto_overlay_file);
 280       if (fd == -1)
 281         goto file_err;
 282       script = fdopen (fd, "w");
 283     }
 284   else
 285     script = fopen (auto_overlay_file, "w");
 286
 287   if (script == NULL)
 288     {
 289     file_err:
 290       einfo ("%F%P: can not open script: %E\n");
 291     }
 292   return script;
 293 }
 294
 295 static void
 296 spu_elf_relink (void)
 297 {
 298   char **argv = xmalloc ((my_argc + 4) * sizeof (*argv));
 299
 300   memcpy (argv, my_argv, my_argc * sizeof (*argv));
 301   argv[my_argc++] = "--no-auto-overlay";
 302   if (tmp_file_list->name == auto_overlay_file)
 303     argv[my_argc - 1] = concat (argv[my_argc - 1], "=",
 304                                 auto_overlay_file, (const char *) NULL);
 305   argv[my_argc++] = "-T";
 306   argv[my_argc++] = auto_overlay_file;
 307   argv[my_argc] = 0;
 308   execvp (argv[0], (char *const *) argv);
 309   perror (argv[0]);
 310   _exit (127);
 311 }
 312
 313 /* Final emulation specific call.  */
 314
 315 static void
 316 gld${EMULATION_NAME}_finish (void)
 317 {
 318   int need_laying_out;
 319
 320   need_laying_out = bfd_elf_discard_info (link_info.output_bfd, &link_info);
 321
 322   gld${EMULATION_NAME}_map_segments (need_laying_out);
 323
 324   if (is_spu_target ())
 325     {
 326       if (local_store_lo < local_store_hi)
 327         {
 328           asection *s;
 329
 330           s = spu_elf_check_vma (&link_info, auto_overlay,
 331                                  local_store_lo, local_store_hi,
 332                                  auto_overlay_fixed, auto_overlay_reserved,
 333                                  spu_elf_load_ovl_mgr,
 334                                  spu_elf_open_overlay_script,
 335                                  spu_elf_relink);
 336           if (s != NULL && !auto_overlay)
 337             einfo ("%X%P: %A exceeds local store range\n", s);
 338         }
 339       else if (auto_overlay)
 340         einfo ("%P: --auto-overlay ignored with zero local store range\n");
 341
 342       if (!spu_elf_build_stubs (&link_info,
 343                                 emit_stub_syms || link_info.emitrelocations))
 344         einfo ("%X%P: can not build overlay stubs: %E\n");
 345     }
 346
 347   finish_default ();
 348 }
 349
 350 static char *
 351 gld${EMULATION_NAME}_choose_target (int argc, char *argv[])
 352 {
 353   link_info.path_separator = ':';
 354   my_argc = argc;
 355   my_argv = argv;
 356   return ldemul_default_target (argc, argv);
 357 }
 358
 359 EOF
 360
 361 if grep -q 'ld_elf.*ppc.*_emulation' ldemul-list.h; then
 362   fragment <<EOF
 363 #include "filenames.h"
 364 #include <fcntl.h>
 365 #include <sys/wait.h>
 366
 367 static const char *
 368 base_name (const char *path)
 369 {
 370   const char *file = strrchr (path, '/');
 371 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
 372   {
 373     char *bslash = strrchr (path, '\\\\');
 374
 375     if (file == NULL || (bslash != NULL && bslash > file))
 376       file = bslash;
 377     if (file == NULL
 378         && path[0] != '\0'
 379         && path[1] == ':')
 380       file = path + 1;
 381   }
 382 #endif
 383   if (file == NULL)
 384     file = path;
 385   else
 386     ++file;
 387   return file;
 388 }
 389
 390 /* This function is called when building a ppc32 or ppc64 executable
 391    to handle embedded spu images.  */
 392 extern bfd_boolean embedded_spu_file (lang_input_statement_type *, const char *);
 393
 394 bfd_boolean
 395 embedded_spu_file (lang_input_statement_type *entry, const char *flags)
 396 {
 397   const char *cmd[6];
 398   const char *sym;
 399   char *handle, *p;
 400   char *oname;
 401   int fd;
 402   pid_t pid;
 403   int status;
 404   union lang_statement_union **old_stat_tail;
 405   union lang_statement_union **old_file_tail;
 406   union lang_statement_union *new_ent;
 407   lang_input_statement_type *search;
 408
 409   if (entry->the_bfd->format != bfd_object
 410       || strcmp (entry->the_bfd->xvec->name, "elf32-spu") != 0
 411       || (entry->the_bfd->tdata.elf_obj_data->elf_header->e_type != ET_EXEC
 412           && entry->the_bfd->tdata.elf_obj_data->elf_header->e_type != ET_DYN))
 413     return FALSE;
 414
 415   /* Use the filename as the symbol marking the program handle struct.  */
 416   sym = base_name (entry->the_bfd->filename);
 417
 418   handle = xstrdup (sym);
 419   for (p = handle; *p; ++p)
 420     if (!(ISALNUM (*p) || *p == '$' || *p == '.'))
 421       *p = '_';
 422
 423   fd = new_tmp_file (&oname);
 424   if (fd == -1)
 425     return FALSE;
 426   close (fd);
 427
 428   for (search = (lang_input_statement_type *) input_file_chain.head;
 429        search != NULL;
 430        search = (lang_input_statement_type *) search->next_real_file)
 431     if (search->filename != NULL)
 432       {
 433         const char *infile = base_name (search->filename);
 434
 435         if (strncmp (infile, "crtbegin", 8) == 0)
 436           {
 437             if (infile[8] == 'S')
 438               flags = concat (flags, " -fPIC", (const char *) NULL);
 439             else if (infile[8] == 'T')
 440               flags = concat (flags, " -fpie", (const char *) NULL);
 441             break;
 442           }
 443       }
 444
 445   /* Use fork() and exec() rather than system() so that we don't
 446      need to worry about quoting args.  */
 447   cmd[0] = EMBEDSPU;
 448   cmd[1] = flags;
 449   cmd[2] = handle;
 450   cmd[3] = entry->the_bfd->filename;
 451   cmd[4] = oname;
 452   cmd[5] = NULL;
 453   if (trace_file_tries)
 454     {
 455       info_msg (_("running: %s \"%s\" \"%s\" \"%s\" \"%s\"\n"),
 456                 cmd[0], cmd[1], cmd[2], cmd[3], cmd[4]);
 457       fflush (stdout);
 458     }
 459
 460   pid = fork ();
 461   if (pid == -1)
 462     return FALSE;
 463   if (pid == 0)
 464     {
 465       execvp (cmd[0], (char *const *) cmd);
 466       if (strcmp ("embedspu", EMBEDSPU) != 0)
 467         {
 468           cmd[0] = "embedspu";
 469           execvp (cmd[0], (char *const *) cmd);
 470         }
 471       perror (cmd[0]);
 472       _exit (127);
 473     }
 474 #ifdef HAVE_WAITPID
 475 #define WAITFOR(PID, STAT) waitpid (PID, STAT, 0)
 476 #else
 477 #define WAITFOR(PID, STAT) wait (STAT)
 478 #endif
 479   if (WAITFOR (pid, &status) != pid
 480       || !WIFEXITED (status)
 481       || WEXITSTATUS (status) != 0)
 482     return FALSE;
 483 #undef WAITFOR
 484
 485   old_stat_tail = stat_ptr->tail;
 486   old_file_tail = input_file_chain.tail;
 487   if (lang_add_input_file (oname, lang_input_file_is_file_enum, NULL) == NULL)
 488     return FALSE;
 489
 490   /* lang_add_input_file put the new list entry at the end of the statement
 491      and input file lists.  Move it to just after the current entry.  */
 492   new_ent = *old_stat_tail;
 493   *old_stat_tail = NULL;
 494   stat_ptr->tail = old_stat_tail;
 495   *old_file_tail = NULL;
 496   input_file_chain.tail = old_file_tail;
 497   new_ent->header.next = entry->header.next;
 498   entry->header.next = new_ent;
 499   new_ent->input_statement.next_real_file = entry->next_real_file;
 500   entry->next_real_file = new_ent;
 501
 502   /* Ensure bfd sections are excluded from the output.  */
 503   bfd_section_list_clear (entry->the_bfd);
 504   entry->loaded = TRUE;
 505   return TRUE;
 506 }
 507
 508 EOF
 509 fi
 510
 511 # Define some shell vars to insert bits of code into the standard elf
 512 # parse_args and list_options functions.
 513 #
 514 PARSE_AND_LIST_PROLOGUE='
 515 #define OPTION_SPU_PLUGIN               301
 516 #define OPTION_SPU_NO_OVERLAYS          (OPTION_SPU_PLUGIN + 1)
 517 #define OPTION_SPU_STUB_SYMS            (OPTION_SPU_NO_OVERLAYS + 1)
 518 #define OPTION_SPU_NON_OVERLAY_STUBS    (OPTION_SPU_STUB_SYMS + 1)
 519 #define OPTION_SPU_LOCAL_STORE          (OPTION_SPU_NON_OVERLAY_STUBS + 1)
 520 #define OPTION_SPU_STACK_ANALYSIS       (OPTION_SPU_LOCAL_STORE + 1)
 521 #define OPTION_SPU_STACK_SYMS           (OPTION_SPU_STACK_ANALYSIS + 1)
 522 #define OPTION_SPU_AUTO_OVERLAY         (OPTION_SPU_STACK_SYMS + 1)
 523 #define OPTION_SPU_AUTO_RELINK          (OPTION_SPU_AUTO_OVERLAY + 1)
 524 #define OPTION_SPU_OVERLAY_RODATA       (OPTION_SPU_AUTO_RELINK + 1)
 525 #define OPTION_SPU_FIXED_SPACE          (OPTION_SPU_OVERLAY_RODATA + 1)
 526 #define OPTION_SPU_RESERVED_SPACE       (OPTION_SPU_FIXED_SPACE + 1)
 527 #define OPTION_SPU_NO_AUTO_OVERLAY      (OPTION_SPU_RESERVED_SPACE + 1)
 528 '
 529
 530 PARSE_AND_LIST_LONGOPTS='
 531   { "plugin", no_argument, NULL, OPTION_SPU_PLUGIN },
 532   { "no-overlays", no_argument, NULL, OPTION_SPU_NO_OVERLAYS },
 533   { "emit-stub-syms", no_argument, NULL, OPTION_SPU_STUB_SYMS },
 534   { "extra-overlay-stubs", no_argument, NULL, OPTION_SPU_NON_OVERLAY_STUBS },
 535   { "local-store", required_argument, NULL, OPTION_SPU_LOCAL_STORE },
 536   { "stack-analysis", no_argument, NULL, OPTION_SPU_STACK_ANALYSIS },
 537   { "emit-stack-syms", no_argument, NULL, OPTION_SPU_STACK_SYMS },
 538   { "auto-overlay", optional_argument, NULL, OPTION_SPU_AUTO_OVERLAY },
 539   { "auto-relink", no_argument, NULL, OPTION_SPU_AUTO_RELINK },
 540   { "overlay-rodata", no_argument, NULL, OPTION_SPU_OVERLAY_RODATA },
 541   { "fixed-space", required_argument, NULL, OPTION_SPU_FIXED_SPACE },
 542   { "reserved-space", required_argument, NULL, OPTION_SPU_RESERVED_SPACE },
 543   { "no-auto-overlay", optional_argument, NULL, OPTION_SPU_NO_AUTO_OVERLAY },
 544 '
 545
 546 PARSE_AND_LIST_OPTIONS='
 547   fprintf (file, _("\
 548   --plugin                    Make SPU plugin.\n\
 549   --no-overlays               No overlay handling.\n\
 550   --emit-stub-syms            Add symbols on overlay call stubs.\n\
 551   --extra-overlay-stubs       Add stubs on all calls out of overlay regions.\n\
 552   --local-store=lo:hi         Valid address range.\n\
 553   --stack-analysis            Estimate maximum stack requirement.\n\
 554   --emit-stack-syms           Add sym giving stack needed for each func.\n\
 555   --auto-overlay [=filename]  Create an overlay script in filename if\n\
 556                               executable does not fit in local store.\n\
 557   --auto-relink               Rerun linker using auto-overlay script.\n\
 558   --overlay-rodata            Place read-only data with associated function\n\
 559                               code in overlays.\n\
 560   --fixed-space=bytes         Local store for non-overlay code and data.\n\
 561   --reserved-space=bytes      Local store for stack and heap.\n"
 562                    ));
 563 '
 564
 565 PARSE_AND_LIST_ARGS_CASES='
 566     case OPTION_SPU_PLUGIN:
 567       spu_elf_plugin (1);
 568       break;
 569
 570     case OPTION_SPU_NO_OVERLAYS:
 571       no_overlays = 1;
 572       break;
 573
 574     case OPTION_SPU_STUB_SYMS:
 575       emit_stub_syms = 1;
 576       break;
 577
 578     case OPTION_SPU_NON_OVERLAY_STUBS:
 579       non_overlay_stubs = 1;
 580       break;
 581
 582     case OPTION_SPU_LOCAL_STORE:
 583       {
 584         char *end;
 585         local_store_lo = strtoul (optarg, &end, 0);
 586         if (*end == '\'':'\'')
 587           {
 588             local_store_hi = strtoul (end + 1, &end, 0);
 589             if (*end == 0)
 590               break;
 591           }
 592         einfo (_("%P%F: invalid --local-store address range `%s'\''\n"), optarg);
 593       }
 594       break;
 595
 596     case OPTION_SPU_STACK_ANALYSIS:
 597       stack_analysis = 1;
 598       break;
 599
 600     case OPTION_SPU_STACK_SYMS:
 601       emit_stack_syms = 1;
 602       break;
 603
 604     case OPTION_SPU_AUTO_OVERLAY:
 605       auto_overlay |= 1;
 606       if (optarg != NULL)
 607         {
 608           auto_overlay_file = optarg;
 609           break;
 610         }
 611       /* Fall thru */
 612
 613     case OPTION_SPU_AUTO_RELINK:
 614       auto_overlay |= 2;
 615       break;
 616
 617     case OPTION_SPU_OVERLAY_RODATA:
 618       auto_overlay |= 4;
 619       break;
 620
 621     case OPTION_SPU_FIXED_SPACE:
 622       {
 623         char *end;
 624         auto_overlay_fixed = strtoul (optarg, &end, 0);
 625         if (*end != 0)
 626           einfo (_("%P%F: invalid --fixed-space value `%s'\''\n"), optarg);
 627       }
 628       break;
 629
 630     case OPTION_SPU_RESERVED_SPACE:
 631       {
 632         char *end;
 633         auto_overlay_reserved = strtoul (optarg, &end, 0);
 634         if (*end != 0)
 635           einfo (_("%P%F: invalid --reserved-space value `%s'\''\n"), optarg);
 636       }
 637       break;
 638
 639     case OPTION_SPU_NO_AUTO_OVERLAY:
 640       auto_overlay = 0;
 641       if (optarg != NULL)
 642         {
 643           struct tflist *tf;
 644           size_t len;
 645
 646           if (tmp_file_list == NULL)
 647             atexit (clean_tmp);
 648
 649           len = strlen (optarg) + 1;
 650           tf = xmalloc (sizeof (*tf) - sizeof (tf->name) + len);
 651           memcpy (tf->name, optarg, len);
 652           tf->next = tmp_file_list;
 653           tmp_file_list = tf;
 654           break;
 655         }
 656       break;
 657 '
 658
 659 LDEMUL_AFTER_OPEN=spu_after_open
 660 LDEMUL_BEFORE_ALLOCATION=spu_before_allocation
 661 LDEMUL_FINISH=gld${EMULATION_NAME}_finish
 662 LDEMUL_CHOOSE_TARGET=gld${EMULATION_NAME}_choose_target