| blob | cd96729f089505225543187a6403a9bdf2114a75 |
1 # This shell script emits a C file. -*- C -*-
2 # It does some substitutions.
3 if [ -z "$MACHINE" ]; then
4 OUTPUT_ARCH=${ARCH}
5 else
6 OUTPUT_ARCH=${ARCH}:${MACHINE}
7 fi
8 fragment <<EOF
9 /* This file is part of GLD, the Gnu Linker.
10 Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
11 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
13 This file is part of the GNU Binutils.
15 This program is free software; you can redistribute it and/or modify
16 it under the terms of the GNU General Public License as published by
17 the Free Software Foundation; either version 3 of the License, or
18 (at your option) any later version.
20 This program is distributed in the hope that it will be useful,
21 but WITHOUT ANY WARRANTY; without even the implied warranty of
22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 GNU General Public License for more details.
25 You should have received a copy of the GNU General Public License
26 along with this program; if not, write to the Free Software
27 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
28 MA 02110-1301, USA. */
31 /* For WINDOWS_NT */
32 /* The original file generated returned different default scripts depending
33 on whether certain switches were set, but these switches pertain to the
34 Linux system and that particular version of coff. In the NT case, we
35 only determine if the subsystem is console or windows in order to select
36 the correct entry point by default. */
38 #include "sysdep.h"
39 #include "bfd.h"
40 #include "bfdlink.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"
57 #define TARGET_IS_${EMULATION_NAME}
59 static struct internal_extra_pe_aouthdr pe;
60 static int dll;
62 extern const char *output_filename;
64 static void
65 gld_${EMULATION_NAME}_before_parse (void)
66 {
67 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
68 output_filename = "a.exe";
69 }
70 \f
71 /* PE format extra command line options. */
73 /* Used for setting flags in the PE header. */
74 #define OPTION_BASE_FILE (300 + 1)
75 #define OPTION_DLL (OPTION_BASE_FILE + 1)
76 #define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1)
77 #define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1)
78 #define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1)
79 #define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1)
80 #define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1)
81 #define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
82 #define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1)
83 #define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1)
84 #define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
85 #define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1)
86 #define OPTION_SUBSYSTEM (OPTION_STACK + 1)
87 #define OPTION_HEAP (OPTION_SUBSYSTEM + 1)
89 static void
90 gld${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 };
114 *longopts = (struct option *)
115 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
116 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
117 }
120 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
121 parameters which may be input from the command line */
123 typedef struct {
124 void *ptr;
125 int size;
126 int value;
127 char *symbol;
128 int inited;
129 } definfo;
131 #define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0}
133 static 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 };
158 static void
159 set_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 }
176 static void
177 set_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 };
199 sver = strchr (optarg, ':');
200 if (sver == NULL)
201 len = strlen (optarg);
202 else
203 {
204 char *end;
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 }
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);
223 /* If the subsystem is windows, we use a different entry
224 point. */
225 lang_default_entry (v[i].entry);
227 return;
228 }
229 }
230 einfo ("%P%F: invalid subsystem type %s\n", optarg);
231 }
234 static void
235 set_pe_value (char *name)
236 {
237 char *end;
238 set_pe_name (name, strtoul (optarg, &end, 0));
239 if (end == optarg)
240 {
241 einfo ("%P%F: invalid hex number for PE parameter '%s'\n", optarg);
242 }
244 optarg = end;
245 }
247 static void
248 set_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 ("%P%F: strange hex info for PE parameter '%s'\n", optarg);
259 }
260 }
263 static bfd_boolean
264 gld${EMULATION_NAME}_handle_option (int optc)
265 {
266 switch (optc)
267 {
268 default:
269 return FALSE;
271 case OPTION_BASE_FILE:
272 link_info.base_file = fopen (optarg, FOPEN_WB);
273 if (link_info.base_file == NULL)
274 einfo (_("%F%P: cannot open base file %s\n"), optarg);
275 break;
277 /* PE options */
278 case OPTION_HEAP:
279 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
280 break;
281 case OPTION_STACK:
282 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
283 break;
284 case OPTION_SUBSYSTEM:
285 set_pe_subsystem ();
286 break;
287 case OPTION_MAJOR_OS_VERSION:
288 set_pe_value ("__major_os_version__");
289 break;
290 case OPTION_MINOR_OS_VERSION:
291 set_pe_value ("__minor_os_version__");
292 break;
293 case OPTION_MAJOR_SUBSYSTEM_VERSION:
294 set_pe_value ("__major_subsystem_version__");
295 break;
296 case OPTION_MINOR_SUBSYSTEM_VERSION:
297 set_pe_value ("__minor_subsystem_version__");
298 break;
299 case OPTION_MAJOR_IMAGE_VERSION:
300 set_pe_value ("__major_image_version__");
301 break;
302 case OPTION_MINOR_IMAGE_VERSION:
303 set_pe_value ("__minor_image_version__");
304 break;
305 case OPTION_FILE_ALIGNMENT:
306 set_pe_value ("__file_alignment__");
307 break;
308 case OPTION_SECTION_ALIGNMENT:
309 set_pe_value ("__section_alignment__");
310 break;
311 case OPTION_DLL:
312 set_pe_name ("__dll__", 1);
313 break;
314 case OPTION_IMAGE_BASE:
315 set_pe_value ("__image_base__");
316 break;
317 }
318 return TRUE;
319 }
320 \f
321 /* Assign values to the special symbols before the linker script is
322 read. */
324 static void
325 gld_${EMULATION_NAME}_set_symbols (void)
326 {
327 /* Run through and invent symbols for all the
328 names and insert the defaults. */
329 int j;
331 if (!init[IMAGEBASEOFF].inited)
332 {
333 if (link_info.relocatable)
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 }
341 /* Don't do any symbol assignments if this is a relocatable link. */
342 if (link_info.relocatable)
343 return;
345 /* Glue the assignments into the abs section */
346 push_stat_ptr (&abs_output_section->children);
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 if (init[j].size == sizeof(short))
353 *(short *)init[j].ptr = val;
354 else if (init[j].size == sizeof(int))
355 *(int *)init[j].ptr = val;
356 else if (init[j].size == sizeof(long))
357 *(long *)init[j].ptr = val;
358 /* This might be a long long or other special type. */
359 else if (init[j].size == sizeof(bfd_vma))
360 *(bfd_vma *)init[j].ptr = val;
361 else abort();
362 }
363 /* Restore the pointer. */
364 pop_stat_ptr ();
366 if (pe.FileAlignment >
367 pe.SectionAlignment)
368 {
369 einfo ("%P: warning, file alignment > section alignment.\n");
370 }
371 }
373 static void
374 gld_${EMULATION_NAME}_after_open (void)
375 {
376 after_open_default ();
378 /* Pass the wacky PE command line options into the output bfd.
379 FIXME: This should be done via a function, rather than by
380 including an internal BFD header. */
381 if (!coff_data(link_info.output_bfd)->pe)
382 {
383 einfo ("%F%P: PE operations on non PE file.\n");
384 }
386 pe_data(link_info.output_bfd)->pe_opthdr = pe;
387 pe_data(link_info.output_bfd)->dll = init[DLLOFF].value;
389 }
390 \f
391 /* Callback functions for qsort in sort_sections. */
393 static int
394 sort_by_file_name (const void *a, const void *b)
395 {
396 const lang_statement_union_type *const *ra = a;
397 const lang_statement_union_type *const *rb = b;
398 int i, a_sec, b_sec;
400 i = filename_cmp ((*ra)->input_section.section->owner->my_archive->filename,
401 (*rb)->input_section.section->owner->my_archive->filename);
402 if (i != 0)
403 return i;
405 i = filename_cmp ((*ra)->input_section.section->owner->filename,
406 (*rb)->input_section.section->owner->filename);
407 if (i != 0)
408 return i;
409 /* the tail idata4/5 are the only ones without relocs to an
410 idata$6 section unless we are importing by ordinal,
411 so sort them to last to terminate the IAT
412 and HNT properly. if no reloc this one is import by ordinal
413 so we have to sort by section contents */
415 if ( ((*ra)->input_section.section->reloc_count + (*rb)->input_section.section->reloc_count) )
416 {
417 i = (((*ra)->input_section.section->reloc_count >
418 (*rb)->input_section.section->reloc_count) ? -1 : 0);
419 if ( i != 0)
420 return i;
422 return (((*ra)->input_section.section->reloc_count >
423 (*rb)->input_section.section->reloc_count) ? 0 : 1);
424 }
425 else
426 {
427 if ( (strcmp( (*ra)->input_section.section->name, ".idata$6") == 0) )
428 return 0; /* don't sort .idata$6 or .idata$7 FIXME dlltool eliminate .idata$7 */
430 if (! bfd_get_section_contents ((*ra)->input_section.section->owner,
431 (*ra)->input_section.section, &a_sec, (file_ptr) 0, (bfd_size_type)sizeof(a_sec)))
432 einfo ("%F%B: Can't read contents of section .idata: %E\n",
433 (*ra)->input_section.section->owner);
435 if (! bfd_get_section_contents ((*rb)->input_section.section->owner,
436 (*rb)->input_section.section, &b_sec, (file_ptr) 0, (bfd_size_type)sizeof(b_sec) ))
437 einfo ("%F%B: Can't read contents of section .idata: %E\n",
438 (*rb)->input_section.section->owner);
440 i = ((a_sec < b_sec) ? -1 : 0);
441 if ( i != 0)
442 return i;
443 return ((a_sec < b_sec) ? 0 : 1);
444 }
445 return 0;
446 }
448 static int
449 sort_by_section_name (const void *a, const void *b)
450 {
451 const lang_statement_union_type *const *ra = a;
452 const lang_statement_union_type *const *rb = b;
453 int i;
454 i = strcmp ((*ra)->input_section.section->name,
455 (*rb)->input_section.section->name);
456 /* This is a hack to make .stab and .stabstr last, so we don't have
457 to fix strip/objcopy for .reloc sections.
458 FIXME stripping images with a .rsrc section still needs to be fixed. */
459 if (i != 0)
460 {
461 if ((CONST_STRNEQ ((*ra)->input_section.section->name, ".stab"))
462 && (! CONST_STRNEQ ((*rb)->input_section.section->name, ".stab")))
463 return 1;
464 }
465 return i;
466 }
468 /* Subroutine of sort_sections to a contiguous subset of a list of sections.
469 NEXT_AFTER is the element after the last one to sort.
470 The result is a pointer to the last element's "next" pointer. */
472 static lang_statement_union_type **
473 sort_sections_1 (lang_statement_union_type **startptr,
474 lang_statement_union_type *next_after,
475 int count,
476 int (*sort_func) (const void *, const void *))
477 {
478 lang_statement_union_type **vec;
479 lang_statement_union_type *p;
480 int i;
481 lang_statement_union_type **ret;
483 if (count == 0)
484 return startptr;
486 vec = ((lang_statement_union_type **)
487 xmalloc (count * sizeof (lang_statement_union_type *)));
489 for (p = *startptr, i = 0; i < count; i++, p = p->header.next)
490 vec[i] = p;
492 qsort (vec, count, sizeof (vec[0]), sort_func);
494 /* Fill in the next pointers again. */
495 *startptr = vec[0];
496 for (i = 0; i < count - 1; i++)
497 vec[i]->header.next = vec[i + 1];
498 vec[i]->header.next = next_after;
499 ret = &vec[i]->header.next;
500 free (vec);
501 return ret;
502 }
504 /* Sort the .idata\$foo input sections of archives into filename order.
505 The reason is so dlltool can arrange to have the pe dll import information
506 generated correctly - the head of the list goes into dh.o, the tail into
507 dt.o, and the guts into ds[nnnn].o. Note that this is only needed for the
508 .idata section.
509 FIXME: This may no longer be necessary with grouped sections. Instead of
510 sorting on dh.o, ds[nnnn].o, dt.o, one could, for example, have dh.o use
511 .idata\$4h, have ds[nnnn].o use .idata\$4s[nnnn], and have dt.o use .idata\$4t.
512 This would have to be elaborated upon to handle multiple dll's
513 [assuming such an eloboration is possible of course].
515 We also sort sections in '\$' wild statements. These are created by the
516 place_orphans routine to implement grouped sections. */
518 static void
519 sort_sections (lang_statement_union_type *s)
520 {
521 for (; s ; s = s->header.next)
522 switch (s->header.type)
523 {
524 case lang_output_section_statement_enum:
525 sort_sections (s->output_section_statement.children.head);
526 break;
527 case lang_wild_statement_enum:
528 {
529 lang_statement_union_type **p = &s->wild_statement.children.head;
530 struct wildcard_list *sec;
532 for (sec = s->wild_statement.section_list; sec; sec = sec->next)
533 {
534 /* Is this the .idata section? */
535 if (sec->spec.name != NULL
536 && CONST_STRNEQ (sec->spec.name, ".idata"))
537 {
538 /* Sort the children. We want to sort any objects in
539 the same archive. In order to handle the case of
540 including a single archive multiple times, we sort
541 all the children by archive name and then by object
542 name. After sorting them, we re-thread the pointer
543 chain. */
545 while (*p)
546 {
547 lang_statement_union_type *start = *p;
548 if (start->header.type != lang_input_section_enum
549 || !start->input_section.section->owner->my_archive)
550 p = &(start->header.next);
551 else
552 {
553 lang_statement_union_type *end;
554 int count;
556 for (end = start, count = 0;
557 end && (end->header.type
558 == lang_input_section_enum);
559 end = end->header.next)
560 count++;
562 p = sort_sections_1 (p, end, count,
563 sort_by_file_name);
564 }
565 }
566 break;
567 }
569 /* If this is a collection of grouped sections, sort them.
570 The linker script must explicitly mention "*(.foo\$)" or
571 "*(.foo\$*)". Don't sort them if \$ is not the last
572 character (not sure if this is really useful, but it
573 allows explicitly mentioning some \$ sections and letting
574 the linker handle the rest). */
575 if (sec->spec.name != NULL)
576 {
577 char *q = strchr (sec->spec.name, '\$');
579 if (q != NULL
580 && (q[1] == '\0'
581 || (q[1] == '*' && q[2] == '\0')))
582 {
583 lang_statement_union_type *end;
584 int count;
586 for (end = *p, count = 0; end; end = end->header.next)
587 {
588 if (end->header.type != lang_input_section_enum)
589 abort ();
590 count++;
591 }
592 (void) sort_sections_1 (p, end, count,
593 sort_by_section_name);
594 }
595 break;
596 }
597 }
598 }
599 break;
600 default:
601 break;
602 }
603 }
605 static void
606 gld_${EMULATION_NAME}_before_allocation (void)
607 {
608 #ifdef TARGET_IS_ppcpe
609 /* Here we rummage through the found bfds to collect toc information */
610 {
611 LANG_FOR_EACH_INPUT_STATEMENT (is)
612 {
613 if (!ppc_process_before_allocation(is->the_bfd, &link_info))
614 {
615 einfo("Errors encountered processing file %s\n", is->filename);
616 }
617 }
618 }
620 /* We have seen it all. Allocate it, and carry on */
621 ppc_allocate_toc_section (&link_info);
622 #else
623 #ifdef TARGET_IS_armpe
624 /* FIXME: we should be able to set the size of the interworking stub
625 section.
627 Here we rummage through the found bfds to collect glue
628 information. FIXME: should this be based on a command line
629 option? krk@cygnus.com */
630 {
631 LANG_FOR_EACH_INPUT_STATEMENT (is)
632 {
633 if (!arm_process_before_allocation (is->the_bfd, & link_info))
634 {
635 einfo ("Errors encountered processing file %s", is->filename);
636 }
637 }
638 }
640 /* We have seen it all. Allocate it, and carry on */
641 arm_allocate_interworking_sections (& link_info);
642 #endif /* TARGET_IS_armpe */
643 #endif /* TARGET_IS_ppcpe */
645 sort_sections (stat_ptr->head);
647 before_allocation_default ();
648 }
649 \f
650 /* Place an orphan section. We use this to put sections with a '\$' in them
651 into the right place. Any section with a '\$' in them (e.g. .text\$foo)
652 gets mapped to the output section with everything from the '\$' on stripped
653 (e.g. .text).
654 See the Microsoft Portable Executable and Common Object File Format
655 Specification 4.1, section 4.2, Grouped Sections.
657 FIXME: This is now handled by the linker script using wildcards,
658 but I'm leaving this here in case we want to enable it for sections
659 which are not mentioned in the linker script. */
661 static lang_output_section_statement_type *
662 gld${EMULATION_NAME}_place_orphan (asection *s,
663 const char *secname,
664 int constraint)
665 {
666 char *output_secname, *ps;
667 lang_output_section_statement_type *os;
668 lang_statement_union_type *l;
670 if ((s->flags & SEC_ALLOC) == 0)
671 return NULL;
673 /* Don't process grouped sections unless doing a final link.
674 If they're marked as COMDAT sections, we don't want .text\$foo to
675 end up in .text and then have .text disappear because it's marked
676 link-once-discard. */
677 if (link_info.relocatable)
678 return NULL;
680 /* Everything from the '\$' on gets deleted so don't allow '\$' as the
681 first character. */
682 if (*secname == '\$')
683 einfo ("%P%F: section %s has '\$' as first character\n", secname);
684 if (strchr (secname + 1, '\$') == NULL)
685 return NULL;
687 /* Look up the output section. The Microsoft specs say sections names in
688 image files never contain a '\$'. Fortunately, lang_..._lookup creates
689 the section if it doesn't exist. */
690 output_secname = xstrdup (secname);
691 ps = strchr (output_secname + 1, '\$');
692 *ps = 0;
693 os = lang_output_section_statement_lookup (output_secname, constraint, TRUE);
695 /* Find the '\$' wild statement for this section. We currently require the
696 linker script to explicitly mention "*(.foo\$)".
697 FIXME: ppcpe.sc has .CRT\$foo in the .rdata section. According to the
698 Microsoft docs this isn't correct so it's not (currently) handled. */
700 ps[0] = '\$';
701 ps[1] = 0;
702 for (l = os->children.head; l; l = l->header.next)
703 if (l->header.type == lang_wild_statement_enum)
704 {
705 struct wildcard_list *sec;
707 for (sec = l->wild_statement.section_list; sec; sec = sec->next)
708 if (sec->spec.name && strcmp (sec->spec.name, output_secname) == 0)
709 break;
710 if (sec)
711 break;
712 }
713 ps[0] = 0;
714 if (l == NULL)
715 einfo ("%P%F: *(%s\$) missing from linker script\n", output_secname);
717 /* Link the input section in and we're done for now.
718 The sections still have to be sorted, but that has to wait until
719 all such sections have been processed by us. The sorting is done by
720 sort_sections. */
721 lang_add_section (&l->wild_statement.children, s, os);
723 return os;
724 }
725 \f
726 static char *
727 gld_${EMULATION_NAME}_get_script (int *isfile)
728 EOF
729 # Scripts compiled in.
730 # sed commands to quote an ld script as a C string.
731 sc="-f stringify.sed"
733 fragment <<EOF
734 {
735 *isfile = 0;
737 if (link_info.relocatable && config.build_constructors)
738 return
739 EOF
740 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
741 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
742 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
743 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
744 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
745 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
746 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
747 echo ' ; else return' >> e${EMULATION_NAME}.c
748 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
749 echo '; }' >> e${EMULATION_NAME}.c
751 fragment <<EOF
754 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
755 {
756 gld_${EMULATION_NAME}_before_parse,
757 syslib_default,
758 hll_default,
759 after_parse_default,
760 gld_${EMULATION_NAME}_after_open,
761 after_allocation_default,
762 set_output_arch_default,
763 ldemul_default_target,
764 gld_${EMULATION_NAME}_before_allocation,
765 gld_${EMULATION_NAME}_get_script,
766 "${EMULATION_NAME}",
767 "${OUTPUT_FORMAT}",
768 finish_default,
769 NULL, /* create output section statements */
770 NULL, /* open dynamic archive */
771 gld${EMULATION_NAME}_place_orphan,
772 gld_${EMULATION_NAME}_set_symbols,
773 NULL, /* parse_args */
774 gld${EMULATION_NAME}_add_options,
775 gld${EMULATION_NAME}_handle_option,
776 NULL, /* unrecognized file */
777 NULL, /* list options */
778 NULL, /* recognized file */
779 NULL, /* find_potential_libraries */
780 NULL /* new_vers_pattern */
781 };
782 EOF