1# This shell script emits a C file. -*- C -*- 2# It does some substitutions. 3if [ -z "$MACHINE" ]; then 4 OUTPUT_ARCH=${ARCH} 5else 6 OUTPUT_ARCH=${ARCH}:${MACHINE} 7fi 8fragment <<EOF 9/* This file is part of GLD, the Gnu Linker. 10 Copyright (C) 1995-2020 Free Software Foundation, Inc. 11 12 This file is part of the GNU Binutils. 13 14 This program is free software; you can redistribute it and/or modify 15 it under the terms of the GNU General Public License as published by 16 the Free Software Foundation; either version 3 of the License, or 17 (at your option) any later version. 18 19 This program is distributed in the hope that it will be useful, 20 but WITHOUT ANY WARRANTY; without even the implied warranty of 21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 22 GNU General Public License for more details. 23 24 You should have received a copy of the GNU General Public License 25 along with this program; if not, write to the Free Software 26 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 27 MA 02110-1301, USA. */ 28 29 30/* For WINDOWS_NT */ 31/* The original file generated returned different default scripts depending 32 on whether certain switches were set, but these switches pertain to the 33 Linux system and that particular version of coff. In the NT case, we 34 only determine if the subsystem is console or windows in order to select 35 the correct entry point by default. */ 36 37#include "sysdep.h" 38#include "bfd.h" 39#include "bfdlink.h" 40#include "ctf-api.h" 41#include "getopt.h" 42#include "libiberty.h" 43#include "filenames.h" 44#include "ld.h" 45#include "ldmain.h" 46#include "ldexp.h" 47#include "ldlang.h" 48#include "ldfile.h" 49#include "ldemul.h" 50#include <ldgram.h> 51#include "ldlex.h" 52#include "ldmisc.h" 53#include "ldctor.h" 54#include "coff/internal.h" 55#include "../bfd/libcoff.h" 56 57#define TARGET_IS_${EMULATION_NAME} 58 59static struct internal_extra_pe_aouthdr pe; 60static int dll; 61 62extern const char *output_filename; 63 64static void 65gld_${EMULATION_NAME}_before_parse (void) 66{ 67 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`); 68 output_filename = "a.exe"; 69} 70 71/* PE format extra command line options. */ 72 73/* Used for setting flags in the PE header. */ 74#define OPTION_BASE_FILE (300 + 1) 75#define OPTION_DLL (OPTION_BASE_FILE + 1) 76#define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1) 77#define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1) 78#define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1) 79#define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1) 80#define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1) 81#define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1) 82#define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1) 83#define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1) 84#define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1) 85#define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1) 86#define OPTION_SUBSYSTEM (OPTION_STACK + 1) 87#define OPTION_HEAP (OPTION_SUBSYSTEM + 1) 88 89static void 90gld${EMULATION_NAME}_add_options 91 (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl, 92 struct option **longopts, int nrl ATTRIBUTE_UNUSED, 93 struct option **really_longopts ATTRIBUTE_UNUSED) 94{ 95 static const struct option xtra_long[] = { 96 /* PE options */ 97 {"base-file", required_argument, NULL, OPTION_BASE_FILE}, 98 {"dll", no_argument, NULL, OPTION_DLL}, 99 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT}, 100 {"heap", required_argument, NULL, OPTION_HEAP}, 101 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE}, 102 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION}, 103 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION}, 104 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION}, 105 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION}, 106 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION}, 107 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION}, 108 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT}, 109 {"stack", required_argument, NULL, OPTION_STACK}, 110 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM}, 111 {NULL, no_argument, NULL, 0} 112 }; 113 114 *longopts = (struct option *) 115 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); 116 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); 117} 118 119 120/* PE/WIN32; added routines to get the subsystem type, heap and/or stack 121 parameters which may be input from the command line */ 122 123typedef struct { 124 void *ptr; 125 int size; 126 int value; 127 char *symbol; 128 int inited; 129} definfo; 130 131#define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0} 132 133static definfo init[] = 134{ 135 /* imagebase must be first */ 136#define IMAGEBASEOFF 0 137 D(ImageBase,"__image_base__", BEOS_EXE_IMAGE_BASE), 138#define DLLOFF 1 139 {&dll, sizeof(dll), 0, "__dll__", 0}, 140 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT), 141 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT), 142 D(MajorOperatingSystemVersion,"__major_os_version__", 4), 143 D(MinorOperatingSystemVersion,"__minor_os_version__", 0), 144 D(MajorImageVersion,"__major_image_version__", 1), 145 D(MinorImageVersion,"__minor_image_version__", 0), 146 D(MajorSubsystemVersion,"__major_subsystem_version__", 4), 147 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0), 148 D(Subsystem,"__subsystem__", 3), 149 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000), 150 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000), 151 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000), 152 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000), 153 D(LoaderFlags,"__loader_flags__", 0x0), 154 { NULL, 0, 0, NULL, 0 } 155}; 156 157 158static void 159set_pe_name (char *name, long val) 160{ 161 int i; 162 /* Find the name and set it. */ 163 for (i = 0; init[i].ptr; i++) 164 { 165 if (strcmp (name, init[i].symbol) == 0) 166 { 167 init[i].value = val; 168 init[i].inited = 1; 169 return; 170 } 171 } 172 abort(); 173} 174 175 176static void 177set_pe_subsystem (void) 178{ 179 const char *sver; 180 int len; 181 int i; 182 static const struct 183 { 184 const char *name; 185 const int value; 186 const char *entry; 187 } 188 v[] = 189 { 190 { "native", 1, "_NtProcessStartup" }, 191 { "windows", 2, "_WinMainCRTStartup" }, 192 { "wwindows", 2, "_wWinMainCRTStartup" }, 193 { "console", 3, "_mainCRTStartup" }, 194 { "wconsole", 3, "_wmainCRTStartup" }, 195 { "posix", 7, "___PosixProcessStartup"}, 196 { 0, 0, 0 } 197 }; 198 199 sver = strchr (optarg, ':'); 200 if (sver == NULL) 201 len = strlen (optarg); 202 else 203 { 204 char *end; 205 206 len = sver - optarg; 207 set_pe_name ("__major_subsystem_version__", 208 strtoul (sver + 1, &end, 0)); 209 if (*end == '.') 210 set_pe_name ("__minor_subsystem_version__", 211 strtoul (end + 1, &end, 0)); 212 if (*end != '\0') 213 einfo (_("%P: warning: bad version number in -subsystem option\n")); 214 } 215 216 for (i = 0; v[i].name; i++) 217 { 218 if (strncmp (optarg, v[i].name, len) == 0 219 && v[i].name[len] == '\0') 220 { 221 set_pe_name ("__subsystem__", v[i].value); 222 223 /* If the subsystem is windows, we use a different entry 224 point. */ 225 lang_default_entry (v[i].entry); 226 227 return; 228 } 229 } 230 einfo (_("%F%P: invalid subsystem type %s\n"), optarg); 231} 232 233 234static void 235set_pe_value (char *name) 236{ 237 char *end; 238 set_pe_name (name, strtoul (optarg, &end, 0)); 239 if (end == optarg) 240 { 241 einfo (_("%F%P: invalid hex number for PE parameter '%s'\n"), optarg); 242 } 243 244 optarg = end; 245} 246 247static void 248set_pe_stack_heap (char *resname, char *comname) 249{ 250 set_pe_value (resname); 251 if (*optarg == ',') 252 { 253 optarg++; 254 set_pe_value (comname); 255 } 256 else if (*optarg) 257 { 258 einfo (_("%F%P: strange hex info for PE parameter '%s'\n"), optarg); 259 } 260} 261 262 263static bfd_boolean 264gld${EMULATION_NAME}_handle_option (int optc) 265{ 266 switch (optc) 267 { 268 default: 269 return FALSE; 270 271 case OPTION_BASE_FILE: 272 link_info.base_file = fopen (optarg, FOPEN_WB); 273 if (link_info.base_file == NULL) 274 einfo (_("%F%P: cannot open base file %s\n"), optarg); 275 break; 276 277 /* PE options */ 278 case OPTION_HEAP: 279 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__"); 280 break; 281 case OPTION_STACK: 282 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__"); 283 break; 284 case OPTION_SUBSYSTEM: 285 set_pe_subsystem (); 286 break; 287 case OPTION_MAJOR_OS_VERSION: 288 set_pe_value ("__major_os_version__"); 289 break; 290 case OPTION_MINOR_OS_VERSION: 291 set_pe_value ("__minor_os_version__"); 292 break; 293 case OPTION_MAJOR_SUBSYSTEM_VERSION: 294 set_pe_value ("__major_subsystem_version__"); 295 break; 296 case OPTION_MINOR_SUBSYSTEM_VERSION: 297 set_pe_value ("__minor_subsystem_version__"); 298 break; 299 case OPTION_MAJOR_IMAGE_VERSION: 300 set_pe_value ("__major_image_version__"); 301 break; 302 case OPTION_MINOR_IMAGE_VERSION: 303 set_pe_value ("__minor_image_version__"); 304 break; 305 case OPTION_FILE_ALIGNMENT: 306 set_pe_value ("__file_alignment__"); 307 break; 308 case OPTION_SECTION_ALIGNMENT: 309 set_pe_value ("__section_alignment__"); 310 break; 311 case OPTION_DLL: 312 set_pe_name ("__dll__", 1); 313 break; 314 case OPTION_IMAGE_BASE: 315 set_pe_value ("__image_base__"); 316 break; 317 } 318 return TRUE; 319} 320 321/* Assign values to the special symbols before the linker script is 322 read. */ 323 324static void 325gld_${EMULATION_NAME}_set_symbols (void) 326{ 327 /* Run through and invent symbols for all the 328 names and insert the defaults. */ 329 int j; 330 331 if (!init[IMAGEBASEOFF].inited) 332 { 333 if (bfd_link_relocatable (&link_info)) 334 init[IMAGEBASEOFF].value = 0; 335 else if (init[DLLOFF].value) 336 init[IMAGEBASEOFF].value = BEOS_DLL_IMAGE_BASE; 337 else 338 init[IMAGEBASEOFF].value = BEOS_EXE_IMAGE_BASE; 339 } 340 341 /* Don't do any symbol assignments if this is a relocatable link. */ 342 if (bfd_link_relocatable (&link_info)) 343 return; 344 345 /* Glue the assignments into the abs section */ 346 push_stat_ptr (&abs_output_section->children); 347 348 for (j = 0; init[j].ptr; j++) 349 { 350 long val = init[j].value; 351 lang_add_assignment (exp_assign (init[j].symbol, exp_intop (val), 352 FALSE)); 353 if (init[j].size == sizeof(short)) 354 *(short *)init[j].ptr = val; 355 else if (init[j].size == sizeof(int)) 356 *(int *)init[j].ptr = val; 357 else if (init[j].size == sizeof(long)) 358 *(long *)init[j].ptr = val; 359 /* This might be a long long or other special type. */ 360 else if (init[j].size == sizeof(bfd_vma)) 361 *(bfd_vma *)init[j].ptr = val; 362 else abort(); 363 } 364 /* Restore the pointer. */ 365 pop_stat_ptr (); 366 367 if (pe.FileAlignment > 368 pe.SectionAlignment) 369 { 370 einfo (_("%P: warning, file alignment > section alignment\n")); 371 } 372} 373 374static void 375gld_${EMULATION_NAME}_after_open (void) 376{ 377 after_open_default (); 378 379 /* Pass the wacky PE command line options into the output bfd. 380 FIXME: This should be done via a function, rather than by 381 including an internal BFD header. */ 382 if (!coff_data(link_info.output_bfd)->pe) 383 { 384 einfo (_("%F%P: PE operations on non PE file\n")); 385 } 386 387 pe_data(link_info.output_bfd)->pe_opthdr = pe; 388 pe_data(link_info.output_bfd)->dll = init[DLLOFF].value; 389 390} 391 392/* Callback functions for qsort in sort_sections. */ 393 394static int 395sort_by_file_name (const void *a, const void *b) 396{ 397 const lang_input_section_type *const *ra = a; 398 const lang_input_section_type *const *rb = b; 399 asection *sa = (*ra)->section; 400 asection *sb = (*rb)->section; 401 int i, a_sec, b_sec; 402 403 i = filename_cmp (sa->owner->my_archive->filename, 404 sb->owner->my_archive->filename); 405 if (i != 0) 406 return i; 407 408 i = filename_cmp (sa->owner->filename, sb->owner->filename); 409 if (i != 0) 410 return i; 411 /* the tail idata4/5 are the only ones without relocs to an 412 idata$6 section unless we are importing by ordinal, 413 so sort them to last to terminate the IAT 414 and HNT properly. if no reloc this one is import by ordinal 415 so we have to sort by section contents */ 416 417 if (sa->reloc_count + sb->reloc_count != 0) 418 { 419 i = sa->reloc_count > sb->reloc_count ? -1 : 0; 420 if (i != 0) 421 return i; 422 423 return sa->reloc_count > sb->reloc_count ? 0 : 1; 424 } 425 else 426 { 427 /* don't sort .idata$6 or .idata$7 FIXME dlltool eliminate .idata$7 */ 428 if ((strcmp (sa->name, ".idata$6") == 0)) 429 return 0; 430 431 if (!bfd_get_section_contents (sa->owner, sa, &a_sec, (file_ptr) 0, 432 (bfd_size_type) sizeof (a_sec))) 433 einfo (_("%F%P: %pB: can't read contents of section .idata: %E\n"), 434 sa->owner); 435 436 if (!bfd_get_section_contents (sb->owner, sb, &b_sec, (file_ptr) 0, 437 (bfd_size_type) sizeof (b_sec))) 438 einfo (_("%F%P: %pB: can't read contents of section .idata: %E\n"), 439 sb->owner); 440 441 i = a_sec < b_sec ? -1 : 0; 442 if (i != 0) 443 return i; 444 return a_sec < b_sec ? 0 : 1; 445 } 446 return 0; 447} 448 449static int 450sort_by_section_name (const void *a, const void *b) 451{ 452 const lang_input_section_type *const *ra = a; 453 const lang_input_section_type *const *rb = b; 454 const char *sna = (*ra)->section->name; 455 const char *snb = (*rb)->section->name; 456 int i; 457 i = strcmp (sna, snb); 458 /* This is a hack to make .stab and .stabstr last, so we don't have 459 to fix strip/objcopy for .reloc sections. 460 FIXME stripping images with a .rsrc section still needs to be fixed. */ 461 if (i != 0) 462 { 463 if ((CONST_STRNEQ (sna, ".stab")) 464 && (!CONST_STRNEQ (snb, ".stab"))) 465 return 1; 466 } 467 return i; 468} 469 470/* Subroutine of sort_sections to a contiguous subset of a list of sections. 471 NEXT_AFTER is the element after the last one to sort. 472 The result is a pointer to the last element's "next" pointer. */ 473 474static lang_statement_union_type ** 475sort_sections_1 (lang_statement_union_type **startptr, 476 lang_statement_union_type *next_after, 477 int count, 478 int (*sort_func) (const void *, const void *)) 479{ 480 lang_statement_union_type **vec; 481 lang_statement_union_type *p; 482 int i; 483 lang_statement_union_type **ret; 484 485 if (count == 0) 486 return startptr; 487 488 vec = ((lang_statement_union_type **) 489 xmalloc (count * sizeof (lang_statement_union_type *))); 490 491 for (p = *startptr, i = 0; i < count; i++, p = p->header.next) 492 vec[i] = p; 493 494 qsort (vec, count, sizeof (vec[0]), sort_func); 495 496 /* Fill in the next pointers again. */ 497 *startptr = vec[0]; 498 for (i = 0; i < count - 1; i++) 499 vec[i]->header.next = vec[i + 1]; 500 vec[i]->header.next = next_after; 501 ret = &vec[i]->header.next; 502 free (vec); 503 return ret; 504} 505 506/* Sort the .idata\$foo input sections of archives into filename order. 507 The reason is so dlltool can arrange to have the pe dll import information 508 generated correctly - the head of the list goes into dh.o, the tail into 509 dt.o, and the guts into ds[nnnn].o. Note that this is only needed for the 510 .idata section. 511 FIXME: This may no longer be necessary with grouped sections. Instead of 512 sorting on dh.o, ds[nnnn].o, dt.o, one could, for example, have dh.o use 513 .idata\$4h, have ds[nnnn].o use .idata\$4s[nnnn], and have dt.o use .idata\$4t. 514 This would have to be elaborated upon to handle multiple dll's 515 [assuming such an eloboration is possible of course]. 516 517 We also sort sections in '\$' wild statements. These are created by the 518 place_orphans routine to implement grouped sections. */ 519 520static void 521sort_sections (lang_statement_union_type *s) 522{ 523 for (; s ; s = s->header.next) 524 switch (s->header.type) 525 { 526 case lang_output_section_statement_enum: 527 sort_sections (s->output_section_statement.children.head); 528 break; 529 case lang_wild_statement_enum: 530 { 531 lang_statement_union_type **p = &s->wild_statement.children.head; 532 struct wildcard_list *sec; 533 534 for (sec = s->wild_statement.section_list; sec; sec = sec->next) 535 { 536 /* Is this the .idata section? */ 537 if (sec->spec.name != NULL 538 && CONST_STRNEQ (sec->spec.name, ".idata")) 539 { 540 /* Sort the children. We want to sort any objects in 541 the same archive. In order to handle the case of 542 including a single archive multiple times, we sort 543 all the children by archive name and then by object 544 name. After sorting them, we re-thread the pointer 545 chain. */ 546 547 while (*p) 548 { 549 lang_statement_union_type *start = *p; 550 if (start->header.type != lang_input_section_enum 551 || !start->input_section.section->owner->my_archive) 552 p = &(start->header.next); 553 else 554 { 555 lang_statement_union_type *end; 556 int count; 557 558 for (end = start, count = 0; 559 end && (end->header.type 560 == lang_input_section_enum); 561 end = end->header.next) 562 count++; 563 564 p = sort_sections_1 (p, end, count, 565 sort_by_file_name); 566 } 567 } 568 break; 569 } 570 571 /* If this is a collection of grouped sections, sort them. 572 The linker script must explicitly mention "*(.foo\$)" or 573 "*(.foo\$*)". Don't sort them if \$ is not the last 574 character (not sure if this is really useful, but it 575 allows explicitly mentioning some \$ sections and letting 576 the linker handle the rest). */ 577 if (sec->spec.name != NULL) 578 { 579 char *q = strchr (sec->spec.name, '\$'); 580 581 if (q != NULL 582 && (q[1] == '\0' 583 || (q[1] == '*' && q[2] == '\0'))) 584 { 585 lang_statement_union_type *end; 586 int count; 587 588 for (end = *p, count = 0; end; end = end->header.next) 589 { 590 if (end->header.type != lang_input_section_enum) 591 abort (); 592 count++; 593 } 594 (void) sort_sections_1 (p, end, count, 595 sort_by_section_name); 596 } 597 break; 598 } 599 } 600 } 601 break; 602 default: 603 break; 604 } 605} 606 607static void 608gld_${EMULATION_NAME}_before_allocation (void) 609{ 610#ifdef TARGET_IS_ppcpe 611 /* Here we rummage through the found bfds to collect toc information */ 612 { 613 LANG_FOR_EACH_INPUT_STATEMENT (is) 614 { 615 if (!ppc_process_before_allocation(is->the_bfd, &link_info)) 616 { 617 einfo (_("%P: errors encountered processing file %s\n"), 618 is->filename); 619 } 620 } 621 } 622 623 /* We have seen it all. Allocate it, and carry on */ 624 ppc_allocate_toc_section (&link_info); 625#else 626#ifdef TARGET_IS_armpe 627 /* FIXME: we should be able to set the size of the interworking stub 628 section. 629 630 Here we rummage through the found bfds to collect glue 631 information. FIXME: should this be based on a command line 632 option? krk@cygnus.com */ 633 { 634 LANG_FOR_EACH_INPUT_STATEMENT (is) 635 { 636 if (!arm_process_before_allocation (is->the_bfd, & link_info)) 637 { 638 einfo (_("%P: errors encountered processing file %s\n"), 639 is->filename); 640 } 641 } 642 } 643 644 /* We have seen it all. Allocate it, and carry on */ 645 arm_allocate_interworking_sections (& link_info); 646#endif /* TARGET_IS_armpe */ 647#endif /* TARGET_IS_ppcpe */ 648 649 sort_sections (stat_ptr->head); 650 651 before_allocation_default (); 652} 653 654/* Place an orphan section. We use this to put sections with a '\$' in them 655 into the right place. Any section with a '\$' in them (e.g. .text\$foo) 656 gets mapped to the output section with everything from the '\$' on stripped 657 (e.g. .text). 658 See the Microsoft Portable Executable and Common Object File Format 659 Specification 4.1, section 4.2, Grouped Sections. 660 661 FIXME: This is now handled by the linker script using wildcards, 662 but I'm leaving this here in case we want to enable it for sections 663 which are not mentioned in the linker script. */ 664 665static lang_output_section_statement_type * 666gld${EMULATION_NAME}_place_orphan (asection *s, 667 const char *secname, 668 int constraint) 669{ 670 char *output_secname, *ps; 671 lang_output_section_statement_type *os; 672 lang_statement_union_type *l; 673 674 if ((s->flags & SEC_ALLOC) == 0) 675 return NULL; 676 677 /* Don't process grouped sections unless doing a final link. 678 If they're marked as COMDAT sections, we don't want .text\$foo to 679 end up in .text and then have .text disappear because it's marked 680 link-once-discard. */ 681 if (bfd_link_relocatable (&link_info)) 682 return NULL; 683 684 /* Everything from the '\$' on gets deleted so don't allow '\$' as the 685 first character. */ 686 if (*secname == '\$') 687 einfo (_("%F%P: section %s has '\$' as first character\n"), secname); 688 if (strchr (secname + 1, '\$') == NULL) 689 return NULL; 690 691 /* Look up the output section. The Microsoft specs say sections names in 692 image files never contain a '\$'. Fortunately, lang_..._lookup creates 693 the section if it doesn't exist. */ 694 output_secname = xstrdup (secname); 695 ps = strchr (output_secname + 1, '\$'); 696 *ps = 0; 697 os = lang_output_section_statement_lookup (output_secname, constraint, TRUE); 698 699 /* Find the '\$' wild statement for this section. We currently require the 700 linker script to explicitly mention "*(.foo\$)". 701 FIXME: ppcpe.sc has .CRT\$foo in the .rdata section. According to the 702 Microsoft docs this isn't correct so it's not (currently) handled. */ 703 704 ps[0] = '\$'; 705 ps[1] = 0; 706 for (l = os->children.head; l; l = l->header.next) 707 if (l->header.type == lang_wild_statement_enum) 708 { 709 struct wildcard_list *sec; 710 711 for (sec = l->wild_statement.section_list; sec; sec = sec->next) 712 if (sec->spec.name && strcmp (sec->spec.name, output_secname) == 0) 713 break; 714 if (sec) 715 break; 716 } 717 ps[0] = 0; 718 if (l == NULL) 719 einfo (_("%F%P: *(%s\$) missing from linker script\n"), output_secname); 720 721 /* Link the input section in and we're done for now. 722 The sections still have to be sorted, but that has to wait until 723 all such sections have been processed by us. The sorting is done by 724 sort_sections. */ 725 lang_add_section (&l->wild_statement.children, s, NULL, os); 726 727 return os; 728} 729 730static char * 731gld_${EMULATION_NAME}_get_script (int *isfile) 732EOF 733# Scripts compiled in. 734# sed commands to quote an ld script as a C string. 735sc="-f stringify.sed" 736 737fragment <<EOF 738{ 739 *isfile = 0; 740 741 if (bfd_link_relocatable (&link_info) && config.build_constructors) 742 return 743EOF 744sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c 745echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c 746sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c 747echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c 748sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c 749echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c 750sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c 751echo ' ; else return' >> e${EMULATION_NAME}.c 752sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c 753echo '; }' >> e${EMULATION_NAME}.c 754 755fragment <<EOF 756 757 758struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = 759{ 760 gld_${EMULATION_NAME}_before_parse, 761 syslib_default, 762 hll_default, 763 after_parse_default, 764 gld_${EMULATION_NAME}_after_open, 765 after_check_relocs_default, 766 after_allocation_default, 767 set_output_arch_default, 768 ldemul_default_target, 769 gld_${EMULATION_NAME}_before_allocation, 770 gld_${EMULATION_NAME}_get_script, 771 "${EMULATION_NAME}", 772 "${OUTPUT_FORMAT}", 773 finish_default, 774 NULL, /* create output section statements */ 775 NULL, /* open dynamic archive */ 776 gld${EMULATION_NAME}_place_orphan, 777 gld_${EMULATION_NAME}_set_symbols, 778 NULL, /* parse_args */ 779 gld${EMULATION_NAME}_add_options, 780 gld${EMULATION_NAME}_handle_option, 781 NULL, /* unrecognized file */ 782 NULL, /* list options */ 783 NULL, /* recognized file */ 784 NULL, /* find_potential_libraries */ 785 NULL, /* new_vers_pattern */ 786 NULL, /* extra_map_file_text */ 787 ${LDEMUL_EMIT_CTF_EARLY-NULL}, 788 ${LDEMUL_EXAMINE_STRTAB_FOR_CTF-NULL} 789}; 790EOF 791