1 # This shell script emits a C file. -*- C -*- 2 # Copyright (C) 2006-2014 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 static void spu_place_special_section (asection *, asection *, const char *); 30 static bfd_size_type spu_elf_load_ovl_mgr (void); 31 static FILE *spu_elf_open_overlay_script (void); 32 static void spu_elf_relink (void); 33 34 static struct spu_elf_params params = 35 { 36 &spu_place_special_section, 37 &spu_elf_load_ovl_mgr, 38 &spu_elf_open_overlay_script, 39 &spu_elf_relink, 40 0, ovly_normal, 0, 0, 0, 0, 0, 0, 0, 0, 41 0, 0x3ffff, 42 1, 0, 16, 0, 0, 2000 43 }; 44 45 static unsigned int no_overlays = 0; 46 static unsigned int num_lines_set = 0; 47 static unsigned int line_size_set = 0; 48 static char *auto_overlay_file = 0; 49 int my_argc; 50 char **my_argv; 51 52 static const char ovl_mgr[] = { 53 EOF 54 55 if ! cat ${srcdir}/emultempl/spu_ovl.o_c >> e${EMULATION_NAME}.c 56 then 57 echo >&2 "Missing ${srcdir}/emultempl/spu_ovl.o_c" 58 echo >&2 "You must build gas/as-new with --target=spu" 59 exit 1 60 fi 61 62 fragment <<EOF 63 }; 64 65 static const char icache_mgr[] = { 66 EOF 67 68 if ! cat ${srcdir}/emultempl/spu_icache.o_c >> e${EMULATION_NAME}.c 69 then 70 echo >&2 "Missing ${srcdir}/emultempl/spu_icache.o_c" 71 echo >&2 "You must build gas/as-new with --target=spu" 72 exit 1 73 fi 74 75 fragment <<EOF 76 }; 77 78 static const struct _ovl_stream ovl_mgr_stream = { 79 ovl_mgr, 80 ovl_mgr + sizeof (ovl_mgr) 81 }; 82 83 static const struct _ovl_stream icache_mgr_stream = { 84 icache_mgr, 85 icache_mgr + sizeof (icache_mgr) 86 }; 87 88 89 static int 90 is_spu_target (void) 91 { 92 extern const bfd_target spu_elf32_vec; 93 94 return link_info.output_bfd->xvec == &spu_elf32_vec; 95 } 96 97 /* Create our note section. */ 98 99 static void 100 spu_after_open (void) 101 { 102 if (is_spu_target ()) 103 { 104 /* Pass params to backend. */ 105 if ((params.auto_overlay & AUTO_OVERLAY) == 0) 106 params.auto_overlay = 0; 107 params.emit_stub_syms |= link_info.emitrelocations; 108 spu_elf_setup (&link_info, ¶ms); 109 110 if (link_info.relocatable) 111 lang_add_unique (".text.ia.*"); 112 113 if (!link_info.relocatable 114 && link_info.input_bfds != NULL 115 && !spu_elf_create_sections (&link_info)) 116 einfo ("%X%P: can not create note section: %E\n"); 117 } 118 119 gld${EMULATION_NAME}_after_open (); 120 } 121 122 /* If O is NULL, add section S at the end of output section OUTPUT_NAME. 123 If O is not NULL, add section S at the beginning of output section O, 124 except for soft-icache which adds to the end. 125 126 Really, we should be duplicating ldlang.c map_input_to_output_sections 127 logic here, ie. using the linker script to find where the section 128 goes. That's rather a lot of code, and we don't want to run 129 map_input_to_output_sections again because most sections are already 130 mapped. So cheat, and put the section in a fixed place, ignoring any 131 attempt via a linker script to put .stub, .ovtab, and built-in 132 overlay manager code somewhere else. */ 133 134 static void 135 spu_place_special_section (asection *s, asection *o, const char *output_name) 136 { 137 lang_output_section_statement_type *os; 138 139 if (o != NULL) 140 os = lang_output_section_get (o); 141 else 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, NULL, 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, FALSE)); 169 pop_stat_ptr (); 170 } 171 lang_add_section (&os->children, s, NULL, 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 #include <errno.h> 388 389 static void 390 spu_elf_relink (void) 391 { 392 const char *pex_return; 393 int status; 394 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; 404 405 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 } 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 <<EOF 450 #include "safe-ctype.h" 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 (verbose) 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->flags.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 837
