1# This shell script emits a C file. -*- C -*- 2# Copyright (C) 2006-2022 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 elf.em, and defines extra spu specific 23# features. 24# 25fragment <<EOF 26#include "ldctor.h" 27#include "elf32-spu.h" 28 29static void spu_place_special_section (asection *, asection *, const char *); 30static bfd_size_type spu_elf_load_ovl_mgr (void); 31static FILE *spu_elf_open_overlay_script (void); 32static void spu_elf_relink (void); 33 34static 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 45static unsigned int no_overlays = 0; 46static unsigned int num_lines_set = 0; 47static unsigned int line_size_set = 0; 48static char *auto_overlay_file = 0; 49int my_argc; 50char **my_argv; 51 52static const char ovl_mgr[] = { 53EOF 54 55if ! cat ${srcdir}/emultempl/spu_ovl.o_c >> e${EMULATION_NAME}.c 56then 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 60fi 61 62fragment <<EOF 63}; 64 65static const char icache_mgr[] = { 66EOF 67 68if ! cat ${srcdir}/emultempl/spu_icache.o_c >> e${EMULATION_NAME}.c 69then 70 echo >&2 "Missing ${srcdir}/emultempl/spu_icache.o_c" 71 echo >&2 "You must build gas/as-new with --target=spu" 72 exit 1 73fi 74 75fragment <<EOF 76}; 77 78static const struct _ovl_stream ovl_mgr_stream = { 79 ovl_mgr, 80 ovl_mgr + sizeof (ovl_mgr) 81}; 82 83static const struct _ovl_stream icache_mgr_stream = { 84 icache_mgr, 85 icache_mgr + sizeof (icache_mgr) 86}; 87 88 89static int 90is_spu_target (void) 91{ 92 extern const bfd_target spu_elf32_vec; 93 94 return link_info.output_bfd->xvec == &spu_elf32_vec; 95} 96 97/* Create our note section. */ 98 99static void 100spu_after_open (void) 101{ 102 if (is_spu_target ()) 103 { 104 /* Pass params to backend. */ 105 if ((params.auto_overlay & AUTO_OVERLAY) == 0) 106 params.auto_overlay = 0; 107 params.emit_stub_syms |= link_info.emitrelocations; 108 spu_elf_setup (&link_info, ¶ms); 109 110 if (bfd_link_relocatable (&link_info)) 111 lang_add_unique (".text.ia.*"); 112 113 if (!bfd_link_relocatable (&link_info) 114 && link_info.input_bfds != NULL 115 && !spu_elf_create_sections (&link_info)) 116 einfo (_("%X%P: can not create note section: %E\n")); 117 } 118 119 gld${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 134static void 135spu_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 = ldelf_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, 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, NULL, os); 172 } 173 174 s->output_section->size += s->size; 175} 176 177/* Load built-in overlay manager. */ 178 179static bfd_size_type 180spu_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 263static void 264spu_before_allocation (void) 265{ 266 if (is_spu_target () 267 && !bfd_link_relocatable (&link_info) 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_seg_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 = (void *) lang_os_list.head; 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 && !bfd_link_relocatable (&link_info)) 322 spu_elf_size_sections (link_info.output_bfd, &link_info); 323 324 gld${EMULATION_NAME}_before_allocation (); 325} 326 327struct tflist { 328 struct tflist *next; 329 char name[9]; 330}; 331 332static struct tflist *tmp_file_list; 333 334static 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 340static int 341new_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 364static FILE * 365spu_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 389static void 390spu_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 != NULL && 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 418static void 419gld${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: %pA 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 438static char * 439gld${EMULATION_NAME}_choose_target (int argc, char *argv[]) 440{ 441 my_argc = argc; 442 my_argv = argv; 443 return ldemul_default_target (argc, argv); 444} 445 446EOF 447 448if grep -q 'ld_elf.*ppc.*_emulation' ldemul-list.h; then 449 fragment <<EOF 450#include "safe-ctype.h" 451#include "filenames.h" 452#include "libiberty.h" 453 454static const char * 455base_name (const char *path) 456{ 457 const char *file = strrchr (path, '/'); 458#ifdef HAVE_DOS_BASED_FILE_SYSTEM 459 { 460 char *bslash = strrchr (path, '\\\\'); 461 462 if (file == NULL || (bslash != NULL && bslash > file)) 463 file = bslash; 464 if (file == NULL 465 && path[0] != '\0' 466 && path[1] == ':') 467 file = path + 1; 468 } 469#endif 470 if (file == NULL) 471 file = path; 472 else 473 ++file; 474 return file; 475} 476 477/* This function is called when building a ppc32 or ppc64 executable 478 to handle embedded spu images. */ 479extern bool embedded_spu_file (lang_input_statement_type *, const char *); 480 481bool 482embedded_spu_file (lang_input_statement_type *entry, const char *flags) 483{ 484 const char *cmd[6]; 485 const char *pex_return; 486 const char *sym; 487 char *handle, *p; 488 char *oname; 489 int fd; 490 int status; 491 union lang_statement_union **old_stat_tail; 492 union lang_statement_union **old_file_tail; 493 union lang_statement_union *new_ent; 494 lang_input_statement_type *search; 495 496 if (entry->the_bfd->format != bfd_object 497 || strcmp (entry->the_bfd->xvec->name, "elf32-spu") != 0 498 || (entry->the_bfd->tdata.elf_obj_data->elf_header->e_type != ET_EXEC 499 && entry->the_bfd->tdata.elf_obj_data->elf_header->e_type != ET_DYN)) 500 return false; 501 502 /* Use the filename as the symbol marking the program handle struct. */ 503 sym = base_name (bfd_get_filename (entry->the_bfd)); 504 505 handle = xstrdup (sym); 506 for (p = handle; *p; ++p) 507 if (!(ISALNUM (*p) || *p == '$' || *p == '.')) 508 *p = '_'; 509 510 fd = new_tmp_file (&oname); 511 if (fd == -1) 512 return false; 513 close (fd); 514 515 for (search = (void *) input_file_chain.head; 516 search != NULL; 517 search = 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] = bfd_get_filename (entry->the_bfd); 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->input_statement; 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 586EOF 587fi 588 589# Define some shell vars to insert bits of code into the standard elf 590# parse_args and list_options functions. 591# 592PARSE_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 616PARSE_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 642PARSE_AND_LIST_OPTIONS=' 643 fprintf (file, _("\ 644 --plugin Make SPU plugin\n")); 645 fprintf (file, _("\ 646 --no-overlays No overlay handling\n")); 647 fprintf (file, _("\ 648 --compact-stubs Use smaller and possibly slower call stubs\n")); 649 fprintf (file, _("\ 650 --emit-stub-syms Add symbols on overlay call stubs\n")); 651 fprintf (file, _("\ 652 --extra-overlay-stubs Add stubs on all calls out of overlay regions\n")); 653 fprintf (file, _("\ 654 --local-store=lo:hi Valid address range\n")); 655 fprintf (file, _("\ 656 --stack-analysis Estimate maximum stack requirement\n")); 657 fprintf (file, _("\ 658 --emit-stack-syms Add sym giving stack needed for each func\n")); 659 fprintf (file, _("\ 660 --auto-overlay [=filename] Create an overlay script in filename if\n\ 661 executable does not fit in local store\n")); 662 fprintf (file, _("\ 663 --auto-relink Rerun linker using auto-overlay script\n")); 664 fprintf (file, _("\ 665 --overlay-rodata Place read-only data with associated function\n\ 666 code in overlays\n")); 667 fprintf (file, _("\ 668 --num-regions Number of overlay buffers (default 1)\n")); 669 fprintf (file, _("\ 670 --region-size Size of overlay buffers (default 0, auto)\n")); 671 fprintf (file, _("\ 672 --fixed-space=bytes Local store for non-overlay code and data\n")); 673 fprintf (file, _("\ 674 --reserved-space=bytes Local store for stack and heap. If not specified\n\ 675 ld will estimate stack size and assume no heap\n")); 676 fprintf (file, _("\ 677 --extra-stack-space=bytes Space for negative sp access (default 2000) if\n\ 678 --reserved-space not given\n")); 679 fprintf (file, _("\ 680 --soft-icache Generate software icache overlays\n")); 681 fprintf (file, _("\ 682 --num-lines Number of soft-icache lines (default 32)\n")); 683 fprintf (file, _("\ 684 --line-size Size of soft-icache lines (default 1k)\n")); 685 fprintf (file, _("\ 686 --non-ia-text Allow non-icache code in icache lines\n")); 687 fprintf (file, _("\ 688 --lrlive-analysis Scan function prologue for lr liveness\n")); 689' 690 691PARSE_AND_LIST_ARGS_CASES=' 692 case OPTION_SPU_PLUGIN: 693 spu_elf_plugin (1); 694 break; 695 696 case OPTION_SPU_NO_OVERLAYS: 697 no_overlays = 1; 698 break; 699 700 case OPTION_SPU_COMPACT_STUBS: 701 params.compact_stub = 1; 702 break; 703 704 case OPTION_SPU_STUB_SYMS: 705 params.emit_stub_syms = 1; 706 break; 707 708 case OPTION_SPU_NON_OVERLAY_STUBS: 709 params.non_overlay_stubs = 1; 710 break; 711 712 case OPTION_SPU_LOCAL_STORE: 713 { 714 char *end; 715 params.local_store_lo = strtoul (optarg, &end, 0); 716 if (*end == '\'':'\'') 717 { 718 params.local_store_hi = strtoul (end + 1, &end, 0); 719 if (*end == 0) 720 break; 721 } 722 einfo (_("%F%P: invalid --local-store address range `%s'\''\n"), optarg); 723 } 724 break; 725 726 case OPTION_SPU_STACK_ANALYSIS: 727 params.stack_analysis = 1; 728 break; 729 730 case OPTION_SPU_STACK_SYMS: 731 params.emit_stack_syms = 1; 732 break; 733 734 case OPTION_SPU_AUTO_OVERLAY: 735 params.auto_overlay |= 1; 736 if (optarg != NULL) 737 { 738 auto_overlay_file = optarg; 739 break; 740 } 741 /* Fallthru */ 742 743 case OPTION_SPU_AUTO_RELINK: 744 params.auto_overlay |= 2; 745 break; 746 747 case OPTION_SPU_OVERLAY_RODATA: 748 params.auto_overlay |= 4; 749 break; 750 751 case OPTION_SPU_SOFT_ICACHE: 752 params.ovly_flavour = ovly_soft_icache; 753 /* Software i-cache stubs are always "compact". */ 754 params.compact_stub = 1; 755 if (!num_lines_set) 756 params.num_lines = 32; 757 else if ((params.num_lines & -params.num_lines) != params.num_lines) 758 einfo (_("%F%P: invalid --num-lines/--num-regions `%u'\''\n"), 759 params.num_lines); 760 if (!line_size_set) 761 params.line_size = 1024; 762 else if ((params.line_size & -params.line_size) != params.line_size) 763 einfo (_("%F%P: invalid --line-size/--region-size `%u'\''\n"), 764 params.line_size); 765 break; 766 767 case OPTION_SPU_LRLIVE: 768 params.lrlive_analysis = 1; 769 break; 770 771 case OPTION_SPU_NON_IA_TEXT: 772 params.non_ia_text = 1; 773 break; 774 775 case OPTION_SPU_NUM_LINES: 776 { 777 char *end; 778 params.num_lines = strtoul (optarg, &end, 0); 779 num_lines_set = 1; 780 if (*end == 0 781 && (params.ovly_flavour != ovly_soft_icache 782 || (params.num_lines & -params.num_lines) == params.num_lines)) 783 break; 784 einfo (_("%F%P: invalid --num-lines/--num-regions `%s'\''\n"), optarg); 785 } 786 break; 787 788 case OPTION_SPU_LINE_SIZE: 789 { 790 char *end; 791 params.line_size = strtoul (optarg, &end, 0); 792 line_size_set = 1; 793 if (*end == 0 794 && (params.ovly_flavour != ovly_soft_icache 795 || (params.line_size & -params.line_size) == params.line_size)) 796 break; 797 einfo (_("%F%P: invalid --line-size/--region-size `%s'\''\n"), optarg); 798 } 799 break; 800 801 case OPTION_SPU_FIXED_SPACE: 802 { 803 char *end; 804 params.auto_overlay_fixed = strtoul (optarg, &end, 0); 805 if (*end != 0) 806 einfo (_("%F%P: invalid --fixed-space value `%s'\''\n"), optarg); 807 } 808 break; 809 810 case OPTION_SPU_RESERVED_SPACE: 811 { 812 char *end; 813 params.auto_overlay_reserved = strtoul (optarg, &end, 0); 814 if (*end != 0) 815 einfo (_("%F%P: invalid --reserved-space value `%s'\''\n"), optarg); 816 } 817 break; 818 819 case OPTION_SPU_EXTRA_STACK: 820 { 821 char *end; 822 params.extra_stack_space = strtol (optarg, &end, 0); 823 if (*end != 0) 824 einfo (_("%F%P: invalid --extra-stack-space value `%s'\''\n"), optarg); 825 } 826 break; 827 828 case OPTION_SPU_NO_AUTO_OVERLAY: 829 params.auto_overlay = 0; 830 if (optarg != NULL) 831 { 832 struct tflist *tf; 833 size_t len; 834 835 if (tmp_file_list == NULL) 836 atexit (clean_tmp); 837 838 len = strlen (optarg) + 1; 839 tf = xmalloc (sizeof (*tf) - sizeof (tf->name) + len); 840 memcpy (tf->name, optarg, len); 841 tf->next = tmp_file_list; 842 tmp_file_list = tf; 843 break; 844 } 845 break; 846 847 case OPTION_SPU_EMIT_FIXUPS: 848 params.emit_fixups = 1; 849 break; 850' 851 852LDEMUL_AFTER_OPEN=spu_after_open 853LDEMUL_BEFORE_ALLOCATION=spu_before_allocation 854LDEMUL_FINISH=gld${EMULATION_NAME}_finish 855LDEMUL_CHOOSE_TARGET=gld${EMULATION_NAME}_choose_target 856