| blob | 997f3a63cec719157cd0bf10fec086fe438b1897 |
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 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 "ld.h"
44 #include "ldmain.h"
45 #include "ldexp.h"
46 #include "ldlang.h"
47 #include "ldfile.h"
48 #include "ldemul.h"
49 #include <ldgram.h>
50 #include "ldlex.h"
51 #include "ldmisc.h"
52 #include "ldctor.h"
53 #include "coff/internal.h"
54 #include "../bfd/libcoff.h"
56 #define TARGET_IS_${EMULATION_NAME}
58 static struct internal_extra_pe_aouthdr pe;
59 static int dll;
61 extern const char *output_filename;
63 static void
64 gld_${EMULATION_NAME}_before_parse (void)
65 {
66 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
67 output_filename = "a.exe";
68 }
69 \f
70 /* PE format extra command line options. */
72 /* Used for setting flags in the PE header. */
73 #define OPTION_BASE_FILE (300 + 1)
74 #define OPTION_DLL (OPTION_BASE_FILE + 1)
75 #define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1)
76 #define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1)
77 #define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1)
78 #define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1)
79 #define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1)
80 #define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
81 #define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1)
82 #define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1)
83 #define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
84 #define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1)
85 #define OPTION_SUBSYSTEM (OPTION_STACK + 1)
86 #define OPTION_HEAP (OPTION_SUBSYSTEM + 1)
88 static void
89 gld${EMULATION_NAME}_add_options
90 (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
91 struct option **longopts, int nrl ATTRIBUTE_UNUSED,
92 struct option **really_longopts ATTRIBUTE_UNUSED)
93 {
94 static const struct option xtra_long[] = {
95 /* PE options */
96 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
97 {"dll", no_argument, NULL, OPTION_DLL},
98 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
99 {"heap", required_argument, NULL, OPTION_HEAP},
100 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
101 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
102 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
103 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
104 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
105 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
106 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
107 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
108 {"stack", required_argument, NULL, OPTION_STACK},
109 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
110 {NULL, no_argument, NULL, 0}
111 };
113 *longopts = (struct option *)
114 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
115 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
116 }
119 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
120 parameters which may be input from the command line */
122 typedef struct {
123 void *ptr;
124 int size;
125 int value;
126 char *symbol;
127 int inited;
128 } definfo;
130 #define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0}
132 static definfo init[] =
133 {
134 /* imagebase must be first */
135 #define IMAGEBASEOFF 0
136 D(ImageBase,"__image_base__", BEOS_EXE_IMAGE_BASE),
137 #define DLLOFF 1
138 {&dll, sizeof(dll), 0, "__dll__", 0},
139 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
140 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
141 D(MajorOperatingSystemVersion,"__major_os_version__", 4),
142 D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
143 D(MajorImageVersion,"__major_image_version__", 1),
144 D(MinorImageVersion,"__minor_image_version__", 0),
145 D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
146 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
147 D(Subsystem,"__subsystem__", 3),
148 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000),
149 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
150 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
151 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
152 D(LoaderFlags,"__loader_flags__", 0x0),
153 { NULL, 0, 0, NULL, 0 }
154 };
157 static void
158 set_pe_name (char *name, long val)
159 {
160 int i;
161 /* Find the name and set it. */
162 for (i = 0; init[i].ptr; i++)
163 {
164 if (strcmp (name, init[i].symbol) == 0)
165 {
166 init[i].value = val;
167 init[i].inited = 1;
168 return;
169 }
170 }
171 abort();
172 }
175 static void
176 set_pe_subsystem (void)
177 {
178 const char *sver;
179 int len;
180 int i;
181 static const struct
182 {
183 const char *name;
184 const int value;
185 const char *entry;
186 }
187 v[] =
188 {
189 { "native", 1, "_NtProcessStartup" },
190 { "windows", 2, "_WinMainCRTStartup" },
191 { "wwindows", 2, "_wWinMainCRTStartup" },
192 { "console", 3, "_mainCRTStartup" },
193 { "wconsole", 3, "_wmainCRTStartup" },
194 { "posix", 7, "___PosixProcessStartup"},
195 { 0, 0, 0 }
196 };
198 sver = strchr (optarg, ':');
199 if (sver == NULL)
200 len = strlen (optarg);
201 else
202 {
203 char *end;
205 len = sver - optarg;
206 set_pe_name ("__major_subsystem_version__",
207 strtoul (sver + 1, &end, 0));
208 if (*end == '.')
209 set_pe_name ("__minor_subsystem_version__",
210 strtoul (end + 1, &end, 0));
211 if (*end != '\0')
212 einfo ("%P: warning: bad version number in -subsystem option\n");
213 }
215 for (i = 0; v[i].name; i++)
216 {
217 if (strncmp (optarg, v[i].name, len) == 0
218 && v[i].name[len] == '\0')
219 {
220 set_pe_name ("__subsystem__", v[i].value);
222 /* If the subsystem is windows, we use a different entry
223 point. */
224 lang_default_entry (v[i].entry);
226 return;
227 }
228 }
229 einfo ("%P%F: invalid subsystem type %s\n", optarg);
230 }
233 static void
234 set_pe_value (char *name)
235 {
236 char *end;
237 set_pe_name (name, strtoul (optarg, &end, 0));
238 if (end == optarg)
239 {
240 einfo ("%P%F: invalid hex number for PE parameter '%s'\n", optarg);
241 }
243 optarg = end;
244 }
246 static void
247 set_pe_stack_heap (char *resname, char *comname)
248 {
249 set_pe_value (resname);
250 if (*optarg == ',')
251 {
252 optarg++;
253 set_pe_value (comname);
254 }
255 else if (*optarg)
256 {
257 einfo ("%P%F: strange hex info for PE parameter '%s'\n", optarg);
258 }
259 }
262 static bfd_boolean
263 gld${EMULATION_NAME}_handle_option (int optc)
264 {
265 switch (optc)
266 {
267 default:
268 return FALSE;
270 case OPTION_BASE_FILE:
271 link_info.base_file = fopen (optarg, FOPEN_WB);
272 if (link_info.base_file == NULL)
273 {
274 fprintf (stderr, "%s: Can't open base file %s\n",
275 program_name, optarg);
276 xexit (1);
277 }
278 break;
280 /* PE options */
281 case OPTION_HEAP:
282 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
283 break;
284 case OPTION_STACK:
285 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
286 break;
287 case OPTION_SUBSYSTEM:
288 set_pe_subsystem ();
289 break;
290 case OPTION_MAJOR_OS_VERSION:
291 set_pe_value ("__major_os_version__");
292 break;
293 case OPTION_MINOR_OS_VERSION:
294 set_pe_value ("__minor_os_version__");
295 break;
296 case OPTION_MAJOR_SUBSYSTEM_VERSION:
297 set_pe_value ("__major_subsystem_version__");
298 break;
299 case OPTION_MINOR_SUBSYSTEM_VERSION:
300 set_pe_value ("__minor_subsystem_version__");
301 break;
302 case OPTION_MAJOR_IMAGE_VERSION:
303 set_pe_value ("__major_image_version__");
304 break;
305 case OPTION_MINOR_IMAGE_VERSION:
306 set_pe_value ("__minor_image_version__");
307 break;
308 case OPTION_FILE_ALIGNMENT:
309 set_pe_value ("__file_alignment__");
310 break;
311 case OPTION_SECTION_ALIGNMENT:
312 set_pe_value ("__section_alignment__");
313 break;
314 case OPTION_DLL:
315 set_pe_name ("__dll__", 1);
316 break;
317 case OPTION_IMAGE_BASE:
318 set_pe_value ("__image_base__");
319 break;
320 }
321 return TRUE;
322 }
323 \f
324 /* Assign values to the special symbols before the linker script is
325 read. */
327 static void
328 gld_${EMULATION_NAME}_set_symbols (void)
329 {
330 /* Run through and invent symbols for all the
331 names and insert the defaults. */
332 int j;
333 lang_statement_list_type *save;
335 if (!init[IMAGEBASEOFF].inited)
336 {
337 if (link_info.relocatable)
338 init[IMAGEBASEOFF].value = 0;
339 else if (init[DLLOFF].value)
340 init[IMAGEBASEOFF].value = BEOS_DLL_IMAGE_BASE;
341 else
342 init[IMAGEBASEOFF].value = BEOS_EXE_IMAGE_BASE;
343 }
345 /* Don't do any symbol assignments if this is a relocatable link. */
346 if (link_info.relocatable)
347 return;
349 /* Glue the assignments into the abs section */
350 save = stat_ptr;
352 stat_ptr = &(abs_output_section->children);
354 for (j = 0; init[j].ptr; j++)
355 {
356 long val = init[j].value;
357 lang_add_assignment (exp_assop ('=', init[j].symbol, exp_intop (val)));
358 if (init[j].size == sizeof(short))
359 *(short *)init[j].ptr = val;
360 else if (init[j].size == sizeof(int))
361 *(int *)init[j].ptr = val;
362 else if (init[j].size == sizeof(long))
363 *(long *)init[j].ptr = val;
364 /* This might be a long long or other special type. */
365 else if (init[j].size == sizeof(bfd_vma))
366 *(bfd_vma *)init[j].ptr = val;
367 else abort();
368 }
369 /* Restore the pointer. */
370 stat_ptr = save;
372 if (pe.FileAlignment >
373 pe.SectionAlignment)
374 {
375 einfo ("%P: warning, file alignment > section alignment.\n");
376 }
377 }
379 static void
380 gld_${EMULATION_NAME}_after_open (void)
381 {
382 /* Pass the wacky PE command line options into the output bfd.
383 FIXME: This should be done via a function, rather than by
384 including an internal BFD header. */
385 if (!coff_data(link_info.output_bfd)->pe)
386 {
387 einfo ("%F%P: PE operations on non PE file.\n");
388 }
390 pe_data(link_info.output_bfd)->pe_opthdr = pe;
391 pe_data(link_info.output_bfd)->dll = init[DLLOFF].value;
393 }
394 \f
395 /* Callback functions for qsort in sort_sections. */
397 static int
398 sort_by_file_name (const void *a, const void *b)
399 {
400 const lang_statement_union_type *const *ra = a;
401 const lang_statement_union_type *const *rb = b;
402 int i, a_sec, b_sec;
404 i = strcmp ((*ra)->input_section.section->owner->my_archive->filename,
405 (*rb)->input_section.section->owner->my_archive->filename);
406 if (i != 0)
407 return i;
409 i = strcmp ((*ra)->input_section.section->owner->filename,
410 (*rb)->input_section.section->owner->filename);
411 if (i != 0)
412 return i;
413 /* the tail idata4/5 are the only ones without relocs to an
414 idata$6 section unless we are importing by ordinal,
415 so sort them to last to terminate the IAT
416 and HNT properly. if no reloc this one is import by ordinal
417 so we have to sort by section contents */
419 if ( ((*ra)->input_section.section->reloc_count + (*rb)->input_section.section->reloc_count) )
420 {
421 i = (((*ra)->input_section.section->reloc_count >
422 (*rb)->input_section.section->reloc_count) ? -1 : 0);
423 if ( i != 0)
424 return i;
426 return (((*ra)->input_section.section->reloc_count >
427 (*rb)->input_section.section->reloc_count) ? 0 : 1);
428 }
429 else
430 {
431 if ( (strcmp( (*ra)->input_section.section->name, ".idata$6") == 0) )
432 return 0; /* don't sort .idata$6 or .idata$7 FIXME dlltool eliminate .idata$7 */
434 if (! bfd_get_section_contents ((*ra)->input_section.section->owner,
435 (*ra)->input_section.section, &a_sec, (file_ptr) 0, (bfd_size_type)sizeof(a_sec)))
436 einfo ("%F%B: Can't read contents of section .idata: %E\n",
437 (*ra)->input_section.section->owner);
439 if (! bfd_get_section_contents ((*rb)->input_section.section->owner,
440 (*rb)->input_section.section, &b_sec, (file_ptr) 0, (bfd_size_type)sizeof(b_sec) ))
441 einfo ("%F%B: Can't read contents of section .idata: %E\n",
442 (*rb)->input_section.section->owner);
444 i = ((a_sec < b_sec) ? -1 : 0);
445 if ( i != 0)
446 return i;
447 return ((a_sec < b_sec) ? 0 : 1);
448 }
449 return 0;
450 }
452 static int
453 sort_by_section_name (const void *a, const void *b)
454 {
455 const lang_statement_union_type *const *ra = a;
456 const lang_statement_union_type *const *rb = b;
457 int i;
458 i = strcmp ((*ra)->input_section.section->name,
459 (*rb)->input_section.section->name);
460 /* This is a hack to make .stab and .stabstr last, so we don't have
461 to fix strip/objcopy for .reloc sections.
462 FIXME stripping images with a .rsrc section still needs to be fixed. */
463 if (i != 0)
464 {
465 if ((CONST_STRNEQ ((*ra)->input_section.section->name, ".stab"))
466 && (! CONST_STRNEQ ((*rb)->input_section.section->name, ".stab")))
467 return 1;
468 }
469 return i;
470 }
472 /* Subroutine of sort_sections to a contiguous subset of a list of sections.
473 NEXT_AFTER is the element after the last one to sort.
474 The result is a pointer to the last element's "next" pointer. */
476 static lang_statement_union_type **
477 sort_sections_1 (lang_statement_union_type **startptr,
478 lang_statement_union_type *next_after,
479 int count,
480 int (*sort_func) (const void *, const void *))
481 {
482 lang_statement_union_type **vec;
483 lang_statement_union_type *p;
484 int i;
485 lang_statement_union_type **ret;
487 if (count == 0)
488 return startptr;
490 vec = ((lang_statement_union_type **)
491 xmalloc (count * sizeof (lang_statement_union_type *)));
493 for (p = *startptr, i = 0; i < count; i++, p = p->header.next)
494 vec[i] = p;
496 qsort (vec, count, sizeof (vec[0]), sort_func);
498 /* Fill in the next pointers again. */
499 *startptr = vec[0];
500 for (i = 0; i < count - 1; i++)
501 vec[i]->header.next = vec[i + 1];
502 vec[i]->header.next = next_after;
503 ret = &vec[i]->header.next;
504 free (vec);
505 return ret;
506 }
508 /* Sort the .idata\$foo input sections of archives into filename order.
509 The reason is so dlltool can arrange to have the pe dll import information
510 generated correctly - the head of the list goes into dh.o, the tail into
511 dt.o, and the guts into ds[nnnn].o. Note that this is only needed for the
512 .idata section.
513 FIXME: This may no longer be necessary with grouped sections. Instead of
514 sorting on dh.o, ds[nnnn].o, dt.o, one could, for example, have dh.o use
515 .idata\$4h, have ds[nnnn].o use .idata\$4s[nnnn], and have dt.o use .idata\$4t.
516 This would have to be elaborated upon to handle multiple dll's
517 [assuming such an eloboration is possible of course].
519 We also sort sections in '\$' wild statements. These are created by the
520 place_orphans routine to implement grouped sections. */
522 static void
523 sort_sections (lang_statement_union_type *s)
524 {
525 for (; s ; s = s->header.next)
526 switch (s->header.type)
527 {
528 case lang_output_section_statement_enum:
529 sort_sections (s->output_section_statement.children.head);
530 break;
531 case lang_wild_statement_enum:
532 {
533 lang_statement_union_type **p = &s->wild_statement.children.head;
534 struct wildcard_list *sec;
536 for (sec = s->wild_statement.section_list; sec; sec = sec->next)
537 {
538 /* Is this the .idata section? */
539 if (sec->spec.name != NULL
540 && CONST_STRNEQ (sec->spec.name, ".idata"))
541 {
542 /* Sort the children. We want to sort any objects in
543 the same archive. In order to handle the case of
544 including a single archive multiple times, we sort
545 all the children by archive name and then by object
546 name. After sorting them, we re-thread the pointer
547 chain. */
549 while (*p)
550 {
551 lang_statement_union_type *start = *p;
552 if (start->header.type != lang_input_section_enum
553 || !start->input_section.section->owner->my_archive)
554 p = &(start->header.next);
555 else
556 {
557 lang_statement_union_type *end;
558 int count;
560 for (end = start, count = 0;
561 end && (end->header.type
562 == lang_input_section_enum);
563 end = end->header.next)
564 count++;
566 p = sort_sections_1 (p, end, count,
567 sort_by_file_name);
568 }
569 }
570 break;
571 }
573 /* If this is a collection of grouped sections, sort them.
574 The linker script must explicitly mention "*(.foo\$)" or
575 "*(.foo\$*)". Don't sort them if \$ is not the last
576 character (not sure if this is really useful, but it
577 allows explicitly mentioning some \$ sections and letting
578 the linker handle the rest). */
579 if (sec->spec.name != NULL)
580 {
581 char *q = strchr (sec->spec.name, '\$');
583 if (q != NULL
584 && (q[1] == '\0'
585 || (q[1] == '*' && q[2] == '\0')))
586 {
587 lang_statement_union_type *end;
588 int count;
590 for (end = *p, count = 0; end; end = end->header.next)
591 {
592 if (end->header.type != lang_input_section_enum)
593 abort ();
594 count++;
595 }
596 (void) sort_sections_1 (p, end, count,
597 sort_by_section_name);
598 }
599 break;
600 }
601 }
602 }
603 break;
604 default:
605 break;
606 }
607 }
609 static void
610 gld_${EMULATION_NAME}_before_allocation (void)
611 {
612 extern lang_statement_list_type *stat_ptr;
614 #ifdef TARGET_IS_ppcpe
615 /* Here we rummage through the found bfds to collect toc information */
616 {
617 LANG_FOR_EACH_INPUT_STATEMENT (is)
618 {
619 if (!ppc_process_before_allocation(is->the_bfd, &link_info))
620 {
621 einfo("Errors encountered processing file %s\n", is->filename);
622 }
623 }
624 }
626 /* We have seen it all. Allocate it, and carry on */
627 ppc_allocate_toc_section (&link_info);
628 #else
629 #ifdef TARGET_IS_armpe
630 /* FIXME: we should be able to set the size of the interworking stub
631 section.
633 Here we rummage through the found bfds to collect glue
634 information. FIXME: should this be based on a command line
635 option? krk@cygnus.com */
636 {
637 LANG_FOR_EACH_INPUT_STATEMENT (is)
638 {
639 if (!arm_process_before_allocation (is->the_bfd, & link_info))
640 {
641 einfo ("Errors encountered processing file %s", is->filename);
642 }
643 }
644 }
646 /* We have seen it all. Allocate it, and carry on */
647 arm_allocate_interworking_sections (& link_info);
648 #endif /* TARGET_IS_armpe */
649 #endif /* TARGET_IS_ppcpe */
651 sort_sections (stat_ptr->head);
653 before_allocation_default ();
654 }
655 \f
656 /* Place an orphan section. We use this to put sections with a '\$' in them
657 into the right place. Any section with a '\$' in them (e.g. .text\$foo)
658 gets mapped to the output section with everything from the '\$' on stripped
659 (e.g. .text).
660 See the Microsoft Portable Executable and Common Object File Format
661 Specification 4.1, section 4.2, Grouped Sections.
663 FIXME: This is now handled by the linker script using wildcards,
664 but I'm leaving this here in case we want to enable it for sections
665 which are not mentioned in the linker script. */
667 static bfd_boolean
668 gld${EMULATION_NAME}_place_orphan (asection *s, const char *secname)
669 {
670 char *output_secname, *ps;
671 lang_output_section_statement_type *os;
672 lang_statement_union_type *l;
674 if ((s->flags & SEC_ALLOC) == 0)
675 return FALSE;
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 (link_info.relocatable)
682 return FALSE;
684 /* Everything from the '\$' on gets deleted so don't allow '\$' as the
685 first character. */
686 if (*secname == '\$')
687 einfo ("%P%F: section %s has '\$' as first character\n", secname);
688 if (strchr (secname + 1, '\$') == NULL)
689 return FALSE;
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, 0, TRUE);
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. */
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;
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 ("%P%F: *(%s\$) missing from linker script\n", output_secname);
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, os);
727 return TRUE;
728 }
729 \f
730 static char *
731 gld_${EMULATION_NAME}_get_script (int *isfile)
732 EOF
733 # Scripts compiled in.
734 # sed commands to quote an ld script as a C string.
735 sc="-f stringify.sed"
737 fragment <<EOF
738 {
739 *isfile = 0;
741 if (link_info.relocatable && config.build_constructors)
742 return
743 EOF
744 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
745 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
746 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
747 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
748 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
749 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
750 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
751 echo ' ; else return' >> e${EMULATION_NAME}.c
752 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
753 echo '; }' >> e${EMULATION_NAME}.c
755 fragment <<EOF
758 struct 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_${EMULATION_NAME}_after_open,
765 after_allocation_default,
766 set_output_arch_default,
767 ldemul_default_target,
768 gld_${EMULATION_NAME}_before_allocation,
769 gld_${EMULATION_NAME}_get_script,
770 "${EMULATION_NAME}",
771 "${OUTPUT_FORMAT}",
772 finish_default,
773 NULL, /* create output section statements */
774 NULL, /* open dynamic archive */
775 gld${EMULATION_NAME}_place_orphan,
776 gld_${EMULATION_NAME}_set_symbols,
777 NULL, /* parse_args */
778 gld${EMULATION_NAME}_add_options,
779 gld${EMULATION_NAME}_handle_option,
780 NULL, /* unrecognized file */
781 NULL, /* list options */
782 NULL, /* recognized file */
783 NULL, /* find_potential_libraries */
784 NULL /* new_vers_pattern */
785 };
786 EOF