Commit | Line | Data |
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252b5132 RH |
1 | # This shell script emits a C file. -*- C -*- |
2 | # It does some substitutions. | |
9b5799b8 | 3 | if [ -z "$MACHINE" ]; then |
86af25fe L |
4 | OUTPUT_ARCH=${ARCH} |
5 | else | |
6 | OUTPUT_ARCH=${ARCH}:${MACHINE} | |
7 | fi | |
252b5132 RH |
8 | cat >e${EMULATION_NAME}.c <<EOF |
9 | /* This file is part of GLD, the Gnu Linker. | |
5e2f1575 | 10 | Copyright 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004 |
39dcfe18 | 11 | Free Software Foundation, Inc. |
252b5132 RH |
12 | |
13 | This program is free software; you can redistribute it and/or modify | |
14 | it under the terms of the GNU General Public License as published by | |
15 | the Free Software Foundation; either version 2 of the License, or | |
16 | (at your option) any later version. | |
17 | ||
18 | This program is distributed in the hope that it will be useful, | |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | GNU General Public License for more details. | |
22 | ||
23 | You should have received a copy of the GNU General Public License | |
24 | along with this program; if not, write to the Free Software | |
25 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
26 | ||
27 | /* For WINDOWS_NT */ | |
28 | /* The original file generated returned different default scripts depending | |
29 | on whether certain switches were set, but these switches pertain to the | |
30 | Linux system and that particular version of coff. In the NT case, we | |
31 | only determine if the subsystem is console or windows in order to select | |
9b5799b8 AJ |
32 | the correct entry point by default. */ |
33 | ||
252b5132 RH |
34 | #include "bfd.h" |
35 | #include "sysdep.h" | |
36 | #include "bfdlink.h" | |
37 | #include "getopt.h" | |
38 | #include "libiberty.h" | |
39 | #include "ld.h" | |
40 | #include "ldmain.h" | |
252b5132 RH |
41 | #include "ldexp.h" |
42 | #include "ldlang.h" | |
b71e2778 | 43 | #include "ldfile.h" |
252b5132 | 44 | #include "ldemul.h" |
df2a7313 | 45 | #include <ldgram.h> |
252b5132 RH |
46 | #include "ldlex.h" |
47 | #include "ldmisc.h" | |
48 | #include "ldctor.h" | |
252b5132 RH |
49 | #include "coff/internal.h" |
50 | #include "../bfd/libcoff.h" | |
51 | ||
52 | #define TARGET_IS_${EMULATION_NAME} | |
53 | ||
252b5132 RH |
54 | static struct internal_extra_pe_aouthdr pe; |
55 | static int dll; | |
56 | ||
57 | extern const char *output_filename; | |
58 | ||
59 | static void | |
0c7a8e5a | 60 | gld_${EMULATION_NAME}_before_parse (void) |
252b5132 | 61 | { |
5e2f1575 | 62 | ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`); |
db8d4f23 | 63 | output_filename = "a.exe"; |
252b5132 RH |
64 | } |
65 | \f | |
66 | /* PE format extra command line options. */ | |
67 | ||
68 | /* Used for setting flags in the PE header. */ | |
69 | #define OPTION_BASE_FILE (300 + 1) | |
70 | #define OPTION_DLL (OPTION_BASE_FILE + 1) | |
71 | #define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1) | |
72 | #define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1) | |
73 | #define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1) | |
74 | #define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1) | |
75 | #define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1) | |
76 | #define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1) | |
77 | #define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1) | |
78 | #define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1) | |
79 | #define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1) | |
80 | #define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1) | |
81 | #define OPTION_SUBSYSTEM (OPTION_STACK + 1) | |
82 | #define OPTION_HEAP (OPTION_SUBSYSTEM + 1) | |
83 | ||
3bcf5557 | 84 | static void |
0c7a8e5a AM |
85 | gld${EMULATION_NAME}_add_options |
86 | (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl, | |
87 | struct option **longopts, int nrl ATTRIBUTE_UNUSED, | |
88 | struct option **really_longopts ATTRIBUTE_UNUSED) | |
3bcf5557 AM |
89 | { |
90 | static const struct option xtra_long[] = { | |
91 | /* PE options */ | |
252b5132 RH |
92 | {"base-file", required_argument, NULL, OPTION_BASE_FILE}, |
93 | {"dll", no_argument, NULL, OPTION_DLL}, | |
94 | {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT}, | |
9b5799b8 AJ |
95 | {"heap", required_argument, NULL, OPTION_HEAP}, |
96 | {"image-base", required_argument, NULL, OPTION_IMAGE_BASE}, | |
252b5132 RH |
97 | {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION}, |
98 | {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION}, | |
99 | {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION}, | |
100 | {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION}, | |
101 | {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION}, | |
102 | {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION}, | |
103 | {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT}, | |
104 | {"stack", required_argument, NULL, OPTION_STACK}, | |
105 | {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM}, | |
3bcf5557 | 106 | {NULL, no_argument, NULL, 0} |
252b5132 RH |
107 | }; |
108 | ||
3bcf5557 AM |
109 | *longopts = (struct option *) |
110 | xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); | |
111 | memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); | |
112 | } | |
113 | ||
252b5132 RH |
114 | |
115 | /* PE/WIN32; added routines to get the subsystem type, heap and/or stack | |
116 | parameters which may be input from the command line */ | |
117 | ||
118 | typedef struct { | |
119 | void *ptr; | |
120 | int size; | |
121 | int value; | |
122 | char *symbol; | |
123 | int inited; | |
124 | } definfo; | |
125 | ||
126 | #define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0} | |
127 | ||
128 | static definfo init[] = | |
129 | { | |
130 | /* imagebase must be first */ | |
131 | #define IMAGEBASEOFF 0 | |
132 | D(ImageBase,"__image_base__", BEOS_EXE_IMAGE_BASE), | |
133 | #define DLLOFF 1 | |
ff7e6f88 | 134 | {&dll, sizeof(dll), 0, "__dll__", 0}, |
252b5132 RH |
135 | D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT), |
136 | D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT), | |
137 | D(MajorOperatingSystemVersion,"__major_os_version__", 4), | |
138 | D(MinorOperatingSystemVersion,"__minor_os_version__", 0), | |
139 | D(MajorImageVersion,"__major_image_version__", 1), | |
140 | D(MinorImageVersion,"__minor_image_version__", 0), | |
141 | D(MajorSubsystemVersion,"__major_subsystem_version__", 4), | |
142 | D(MinorSubsystemVersion,"__minor_subsystem_version__", 0), | |
143 | D(Subsystem,"__subsystem__", 3), | |
144 | D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000), | |
145 | D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000), | |
146 | D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000), | |
147 | D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000), | |
148 | D(LoaderFlags,"__loader_flags__", 0x0), | |
149 | { NULL, 0, 0, NULL, 0 } | |
150 | }; | |
151 | ||
152 | ||
153 | static void | |
0c7a8e5a | 154 | set_pe_name (char *name, long val) |
252b5132 RH |
155 | { |
156 | int i; | |
157 | /* Find the name and set it. */ | |
158 | for (i = 0; init[i].ptr; i++) | |
159 | { | |
160 | if (strcmp (name, init[i].symbol) == 0) | |
161 | { | |
162 | init[i].value = val; | |
163 | init[i].inited = 1; | |
164 | return; | |
165 | } | |
166 | } | |
167 | abort(); | |
168 | } | |
169 | ||
170 | ||
171 | static void | |
0c7a8e5a | 172 | set_pe_subsystem (void) |
252b5132 RH |
173 | { |
174 | const char *sver; | |
175 | int len; | |
176 | int i; | |
9b5799b8 | 177 | static const struct |
252b5132 RH |
178 | { |
179 | const char *name; | |
180 | const int value; | |
181 | const char *entry; | |
182 | } | |
183 | v[] = | |
184 | { | |
185 | { "native", 1, "_NtProcessStartup" }, | |
186 | { "windows", 2, "_WinMainCRTStartup" }, | |
187 | { "wwindows", 2, "_wWinMainCRTStartup" }, | |
188 | { "console", 3, "_mainCRTStartup" }, | |
189 | { "wconsole", 3, "_wmainCRTStartup" }, | |
190 | #if 0 | |
191 | /* The Microsoft linker does not recognize this. */ | |
192 | { "os2", 5, "" }, | |
193 | #endif | |
194 | { "posix", 7, "___PosixProcessStartup"}, | |
195 | { 0, 0, 0 } | |
196 | }; | |
197 | ||
198 | sver = strchr (optarg, ':'); | |
199 | if (sver == NULL) | |
200 | len = strlen (optarg); | |
201 | else | |
202 | { | |
203 | char *end; | |
204 | ||
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 | } | |
214 | ||
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); | |
221 | ||
222 | /* If the subsystem is windows, we use a different entry | |
223 | point. We also register the entry point as an undefined | |
224 | symbol. from lang_add_entry() The reason we do | |
225 | this is so that the user | |
226 | doesn't have to because they would have to use the -u | |
227 | switch if they were specifying an entry point other than | |
228 | _mainCRTStartup. Specifically, if creating a windows | |
229 | application, entry point _WinMainCRTStartup must be | |
230 | specified. What I have found for non console | |
231 | applications (entry not _mainCRTStartup) is that the .obj | |
232 | that contains mainCRTStartup is brought in since it is | |
233 | the first encountered in libc.lib and it has other | |
234 | symbols in it which will be pulled in by the link | |
235 | process. To avoid this, adding -u with the entry point | |
236 | name specified forces the correct .obj to be used. We | |
237 | can avoid making the user do this by always adding the | |
238 | entry point name as an undefined symbol. */ | |
239 | lang_add_entry (v[i].entry, 1); | |
240 | ||
241 | return; | |
242 | } | |
243 | } | |
244 | einfo ("%P%F: invalid subsystem type %s\n", optarg); | |
245 | } | |
246 | ||
247 | ||
252b5132 | 248 | static void |
0c7a8e5a | 249 | set_pe_value (char *name) |
252b5132 RH |
250 | { |
251 | char *end; | |
252 | set_pe_name (name, strtoul (optarg, &end, 0)); | |
253 | if (end == optarg) | |
254 | { | |
255 | einfo ("%P%F: invalid hex number for PE parameter '%s'\n", optarg); | |
256 | } | |
257 | ||
258 | optarg = end; | |
259 | } | |
260 | ||
261 | static void | |
0c7a8e5a | 262 | set_pe_stack_heap (char *resname, char *comname) |
252b5132 RH |
263 | { |
264 | set_pe_value (resname); | |
265 | if (*optarg == ',') | |
266 | { | |
267 | optarg++; | |
268 | set_pe_value (comname); | |
269 | } | |
270 | else if (*optarg) | |
271 | { | |
272 | einfo ("%P%F: strange hex info for PE parameter '%s'\n", optarg); | |
273 | } | |
274 | } | |
275 | ||
276 | ||
3bcf5557 | 277 | static bfd_boolean |
0c7a8e5a | 278 | gld${EMULATION_NAME}_handle_option (int optc) |
252b5132 | 279 | { |
252b5132 RH |
280 | switch (optc) |
281 | { | |
282 | default: | |
3bcf5557 | 283 | return FALSE; |
252b5132 RH |
284 | |
285 | case OPTION_BASE_FILE: | |
0c7a8e5a | 286 | link_info.base_file = fopen (optarg, FOPEN_WB); |
252b5132 RH |
287 | if (link_info.base_file == NULL) |
288 | { | |
289 | fprintf (stderr, "%s: Can't open base file %s\n", | |
290 | program_name, optarg); | |
291 | xexit (1); | |
292 | } | |
293 | break; | |
294 | ||
295 | /* PE options */ | |
9b5799b8 | 296 | case OPTION_HEAP: |
252b5132 RH |
297 | set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__"); |
298 | break; | |
9b5799b8 | 299 | case OPTION_STACK: |
252b5132 RH |
300 | set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__"); |
301 | break; | |
302 | case OPTION_SUBSYSTEM: | |
303 | set_pe_subsystem (); | |
304 | break; | |
305 | case OPTION_MAJOR_OS_VERSION: | |
306 | set_pe_value ("__major_os_version__"); | |
307 | break; | |
308 | case OPTION_MINOR_OS_VERSION: | |
309 | set_pe_value ("__minor_os_version__"); | |
310 | break; | |
311 | case OPTION_MAJOR_SUBSYSTEM_VERSION: | |
312 | set_pe_value ("__major_subsystem_version__"); | |
313 | break; | |
314 | case OPTION_MINOR_SUBSYSTEM_VERSION: | |
315 | set_pe_value ("__minor_subsystem_version__"); | |
316 | break; | |
317 | case OPTION_MAJOR_IMAGE_VERSION: | |
318 | set_pe_value ("__major_image_version__"); | |
319 | break; | |
320 | case OPTION_MINOR_IMAGE_VERSION: | |
321 | set_pe_value ("__minor_image_version__"); | |
322 | break; | |
323 | case OPTION_FILE_ALIGNMENT: | |
324 | set_pe_value ("__file_alignment__"); | |
325 | break; | |
326 | case OPTION_SECTION_ALIGNMENT: | |
327 | set_pe_value ("__section_alignment__"); | |
328 | break; | |
329 | case OPTION_DLL: | |
330 | set_pe_name ("__dll__", 1); | |
331 | break; | |
332 | case OPTION_IMAGE_BASE: | |
333 | set_pe_value ("__image_base__"); | |
334 | break; | |
335 | } | |
3bcf5557 | 336 | return TRUE; |
252b5132 RH |
337 | } |
338 | \f | |
339 | /* Assign values to the special symbols before the linker script is | |
340 | read. */ | |
341 | ||
342 | static void | |
0c7a8e5a | 343 | gld_${EMULATION_NAME}_set_symbols (void) |
252b5132 RH |
344 | { |
345 | /* Run through and invent symbols for all the | |
346 | names and insert the defaults. */ | |
347 | int j; | |
348 | lang_statement_list_type *save; | |
349 | ||
350 | if (!init[IMAGEBASEOFF].inited) | |
351 | { | |
1049f94e | 352 | if (link_info.relocatable) |
252b5132 RH |
353 | init[IMAGEBASEOFF].value = 0; |
354 | else if (init[DLLOFF].value) | |
355 | init[IMAGEBASEOFF].value = BEOS_DLL_IMAGE_BASE; | |
356 | else | |
357 | init[IMAGEBASEOFF].value = BEOS_EXE_IMAGE_BASE; | |
358 | } | |
359 | ||
1049f94e AM |
360 | /* Don't do any symbol assignments if this is a relocatable link. */ |
361 | if (link_info.relocatable) | |
252b5132 RH |
362 | return; |
363 | ||
364 | /* Glue the assignments into the abs section */ | |
365 | save = stat_ptr; | |
366 | ||
367 | stat_ptr = &(abs_output_section->children); | |
368 | ||
369 | for (j = 0; init[j].ptr; j++) | |
370 | { | |
371 | long val = init[j].value; | |
2c382fb6 | 372 | lang_add_assignment (exp_assop ('=', init[j].symbol, exp_intop (val))); |
252b5132 RH |
373 | if (init[j].size == sizeof(short)) |
374 | *(short *)init[j].ptr = val; | |
375 | else if (init[j].size == sizeof(int)) | |
376 | *(int *)init[j].ptr = val; | |
377 | else if (init[j].size == sizeof(long)) | |
378 | *(long *)init[j].ptr = val; | |
379 | /* This might be a long long or other special type. */ | |
380 | else if (init[j].size == sizeof(bfd_vma)) | |
381 | *(bfd_vma *)init[j].ptr = val; | |
382 | else abort(); | |
383 | } | |
384 | /* Restore the pointer. */ | |
385 | stat_ptr = save; | |
9b5799b8 | 386 | |
252b5132 RH |
387 | if (pe.FileAlignment > |
388 | pe.SectionAlignment) | |
389 | { | |
390 | einfo ("%P: warning, file alignment > section alignment.\n"); | |
391 | } | |
392 | } | |
393 | ||
394 | static void | |
0c7a8e5a | 395 | gld_${EMULATION_NAME}_after_open (void) |
252b5132 RH |
396 | { |
397 | /* Pass the wacky PE command line options into the output bfd. | |
398 | FIXME: This should be done via a function, rather than by | |
399 | including an internal BFD header. */ | |
400 | if (!coff_data(output_bfd)->pe) | |
401 | { | |
402 | einfo ("%F%P: PE operations on non PE file.\n"); | |
403 | } | |
404 | ||
405 | pe_data(output_bfd)->pe_opthdr = pe; | |
406 | pe_data(output_bfd)->dll = init[DLLOFF].value; | |
407 | ||
408 | } | |
409 | \f | |
410 | /* Callback functions for qsort in sort_sections. */ | |
411 | ||
412 | static int | |
0c7a8e5a | 413 | sort_by_file_name (const void *a, const void *b) |
252b5132 | 414 | { |
db09f25b AM |
415 | const lang_statement_union_type *const *ra = a; |
416 | const lang_statement_union_type *const *rb = b; | |
252b5132 RH |
417 | int i, a_sec, b_sec; |
418 | ||
419 | i = strcmp ((*ra)->input_section.ifile->the_bfd->my_archive->filename, | |
420 | (*rb)->input_section.ifile->the_bfd->my_archive->filename); | |
421 | if (i != 0) | |
422 | return i; | |
423 | ||
424 | i = strcmp ((*ra)->input_section.ifile->filename, | |
425 | (*rb)->input_section.ifile->filename); | |
426 | if (i != 0) | |
427 | return i; | |
428 | /* the tail idata4/5 are the only ones without relocs to an | |
9b5799b8 | 429 | idata$6 section unless we are importing by ordinal, |
252b5132 RH |
430 | so sort them to last to terminate the IAT |
431 | and HNT properly. if no reloc this one is import by ordinal | |
432 | so we have to sort by section contents */ | |
433 | ||
434 | if ( ((*ra)->input_section.section->reloc_count + (*rb)->input_section.section->reloc_count) ) | |
435 | { | |
9b5799b8 | 436 | i = (((*ra)->input_section.section->reloc_count > |
252b5132 RH |
437 | (*rb)->input_section.section->reloc_count) ? -1 : 0); |
438 | if ( i != 0) | |
439 | return i; | |
440 | ||
9b5799b8 | 441 | return (((*ra)->input_section.section->reloc_count > |
252b5132 RH |
442 | (*rb)->input_section.section->reloc_count) ? 0 : 1); |
443 | } | |
444 | else | |
445 | { | |
446 | if ( (strcmp( (*ra)->input_section.section->name, ".idata$6") == 0) ) | |
447 | return 0; /* don't sort .idata$6 or .idata$7 FIXME dlltool eliminate .idata$7 */ | |
448 | ||
9b5799b8 | 449 | if (! bfd_get_section_contents ((*ra)->input_section.ifile->the_bfd, |
252b5132 RH |
450 | (*ra)->input_section.section, &a_sec, (file_ptr) 0, (bfd_size_type)sizeof(a_sec))) |
451 | einfo ("%F%B: Can't read contents of section .idata: %E\n", | |
452 | (*ra)->input_section.ifile->the_bfd); | |
453 | ||
9b5799b8 | 454 | if (! bfd_get_section_contents ((*rb)->input_section.ifile->the_bfd, |
252b5132 RH |
455 | (*rb)->input_section.section, &b_sec, (file_ptr) 0, (bfd_size_type)sizeof(b_sec) )) |
456 | einfo ("%F%B: Can't read contents of section .idata: %E\n", | |
457 | (*rb)->input_section.ifile->the_bfd); | |
458 | ||
459 | i = ((a_sec < b_sec) ? -1 : 0); | |
460 | if ( i != 0) | |
461 | return i; | |
462 | return ((a_sec < b_sec) ? 0 : 1); | |
463 | } | |
464 | return 0; | |
465 | } | |
466 | ||
467 | static int | |
0c7a8e5a | 468 | sort_by_section_name (const void *a, const void *b) |
252b5132 | 469 | { |
db09f25b AM |
470 | const lang_statement_union_type *const *ra = a; |
471 | const lang_statement_union_type *const *rb = b; | |
252b5132 RH |
472 | int i; |
473 | i = strcmp ((*ra)->input_section.section->name, | |
474 | (*rb)->input_section.section->name); | |
475 | /* this is a hack to make .stab and .stabstr last, so we don't have | |
476 | to fix strip/objcopy for .reloc sections. | |
477 | FIXME stripping images with a .rsrc section still needs to be fixed */ | |
478 | if ( i != 0) | |
479 | { | |
480 | if ((strncmp ((*ra)->input_section.section->name, ".stab", 5) == 0) | |
481 | && (strncmp ((*rb)->input_section.section->name, ".stab", 5) != 0)) | |
482 | return 1; | |
483 | return i; | |
484 | } | |
485 | return i; | |
486 | } | |
487 | ||
488 | /* Subroutine of sort_sections to a contiguous subset of a list of sections. | |
489 | NEXT_AFTER is the element after the last one to sort. | |
490 | The result is a pointer to the last element's "next" pointer. */ | |
491 | ||
492 | static lang_statement_union_type ** | |
0c7a8e5a AM |
493 | sort_sections_1 (lang_statement_union_type **startptr, |
494 | lang_statement_union_type *next_after, | |
495 | int count, | |
496 | int (*sort_func) (const void *, const void *)) | |
252b5132 RH |
497 | { |
498 | lang_statement_union_type **vec; | |
499 | lang_statement_union_type *p; | |
500 | int i; | |
501 | lang_statement_union_type **ret; | |
502 | ||
503 | if (count == 0) | |
504 | return startptr; | |
505 | ||
506 | vec = ((lang_statement_union_type **) | |
507 | xmalloc (count * sizeof (lang_statement_union_type *))); | |
508 | ||
bba1a0c0 | 509 | for (p = *startptr, i = 0; i < count; i++, p = p->header.next) |
252b5132 RH |
510 | vec[i] = p; |
511 | ||
512 | qsort (vec, count, sizeof (vec[0]), sort_func); | |
513 | ||
514 | /* Fill in the next pointers again. */ | |
515 | *startptr = vec[0]; | |
516 | for (i = 0; i < count - 1; i++) | |
517 | vec[i]->header.next = vec[i + 1]; | |
518 | vec[i]->header.next = next_after; | |
519 | ret = &vec[i]->header.next; | |
520 | free (vec); | |
521 | return ret; | |
522 | } | |
523 | ||
524 | /* Sort the .idata\$foo input sections of archives into filename order. | |
525 | The reason is so dlltool can arrange to have the pe dll import information | |
526 | generated correctly - the head of the list goes into dh.o, the tail into | |
527 | dt.o, and the guts into ds[nnnn].o. Note that this is only needed for the | |
528 | .idata section. | |
529 | FIXME: This may no longer be necessary with grouped sections. Instead of | |
530 | sorting on dh.o, ds[nnnn].o, dt.o, one could, for example, have dh.o use | |
531 | .idata\$4h, have ds[nnnn].o use .idata\$4s[nnnn], and have dt.o use .idata\$4t. | |
532 | This would have to be elaborated upon to handle multiple dll's | |
533 | [assuming such an eloboration is possible of course]. | |
534 | ||
535 | We also sort sections in '\$' wild statements. These are created by the | |
536 | place_orphans routine to implement grouped sections. */ | |
537 | ||
538 | static void | |
0c7a8e5a | 539 | sort_sections (lang_statement_union_type *s) |
252b5132 | 540 | { |
bba1a0c0 | 541 | for (; s ; s = s->header.next) |
252b5132 RH |
542 | switch (s->header.type) |
543 | { | |
544 | case lang_output_section_statement_enum: | |
545 | sort_sections (s->output_section_statement.children.head); | |
546 | break; | |
547 | case lang_wild_statement_enum: | |
548 | { | |
549 | lang_statement_union_type **p = &s->wild_statement.children.head; | |
3fd36710 | 550 | struct wildcard_list *sec; |
252b5132 | 551 | |
3fd36710 | 552 | for (sec = s->wild_statement.section_list; sec; sec = sec->next) |
252b5132 | 553 | { |
3fd36710 AM |
554 | /* Is this the .idata section? */ |
555 | if (sec->spec.name != NULL | |
556 | && strncmp (sec->spec.name, ".idata", 6) == 0) | |
252b5132 | 557 | { |
3fd36710 AM |
558 | /* Sort the children. We want to sort any objects in |
559 | the same archive. In order to handle the case of | |
560 | including a single archive multiple times, we sort | |
561 | all the children by archive name and then by object | |
562 | name. After sorting them, we re-thread the pointer | |
563 | chain. */ | |
564 | ||
565 | while (*p) | |
252b5132 | 566 | { |
3fd36710 AM |
567 | lang_statement_union_type *start = *p; |
568 | if (start->header.type != lang_input_section_enum | |
569 | || !start->input_section.ifile->the_bfd->my_archive) | |
570 | p = &(start->header.next); | |
571 | else | |
572 | { | |
573 | lang_statement_union_type *end; | |
574 | int count; | |
575 | ||
576 | for (end = start, count = 0; | |
577 | end && (end->header.type | |
578 | == lang_input_section_enum); | |
bba1a0c0 | 579 | end = end->header.next) |
3fd36710 AM |
580 | count++; |
581 | ||
582 | p = sort_sections_1 (p, end, count, | |
583 | sort_by_file_name); | |
584 | } | |
252b5132 | 585 | } |
3fd36710 | 586 | break; |
252b5132 | 587 | } |
252b5132 | 588 | |
3fd36710 AM |
589 | /* If this is a collection of grouped sections, sort them. |
590 | The linker script must explicitly mention "*(.foo\$)" or | |
591 | "*(.foo\$*)". Don't sort them if \$ is not the last | |
592 | character (not sure if this is really useful, but it | |
593 | allows explicitly mentioning some \$ sections and letting | |
594 | the linker handle the rest). */ | |
595 | if (sec->spec.name != NULL) | |
252b5132 | 596 | { |
3fd36710 | 597 | char *q = strchr (sec->spec.name, '\$'); |
252b5132 | 598 | |
3fd36710 AM |
599 | if (q != NULL |
600 | && (q[1] == '\0' | |
601 | || (q[1] == '*' && q[2] == '\0'))) | |
252b5132 | 602 | { |
3fd36710 AM |
603 | lang_statement_union_type *end; |
604 | int count; | |
605 | ||
bba1a0c0 | 606 | for (end = *p, count = 0; end; end = end->header.next) |
3fd36710 AM |
607 | { |
608 | if (end->header.type != lang_input_section_enum) | |
609 | abort (); | |
610 | count++; | |
611 | } | |
612 | (void) sort_sections_1 (p, end, count, | |
613 | sort_by_section_name); | |
252b5132 | 614 | } |
3fd36710 | 615 | break; |
252b5132 | 616 | } |
252b5132 RH |
617 | } |
618 | } | |
619 | break; | |
620 | default: | |
621 | break; | |
622 | } | |
623 | } | |
624 | ||
9b5799b8 | 625 | static void |
0c7a8e5a | 626 | gld_${EMULATION_NAME}_before_allocation (void) |
252b5132 RH |
627 | { |
628 | extern lang_statement_list_type *stat_ptr; | |
629 | ||
630 | #ifdef TARGET_IS_ppcpe | |
631 | /* Here we rummage through the found bfds to collect toc information */ | |
632 | { | |
633 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
634 | { | |
635 | if (!ppc_process_before_allocation(is->the_bfd, &link_info)) | |
636 | { | |
637 | einfo("Errors encountered processing file %s\n", is->filename); | |
638 | } | |
639 | } | |
640 | } | |
641 | ||
642 | /* We have seen it all. Allocate it, and carry on */ | |
643 | ppc_allocate_toc_section (&link_info); | |
644 | #else | |
645 | #ifdef TARGET_IS_armpe | |
646 | /* FIXME: we should be able to set the size of the interworking stub | |
647 | section. | |
648 | ||
649 | Here we rummage through the found bfds to collect glue | |
650 | information. FIXME: should this be based on a command line | |
651 | option? krk@cygnus.com */ | |
652 | { | |
653 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
654 | { | |
655 | if (!arm_process_before_allocation (is->the_bfd, & link_info)) | |
656 | { | |
657 | einfo ("Errors encountered processing file %s", is->filename); | |
658 | } | |
659 | } | |
660 | } | |
661 | ||
662 | /* We have seen it all. Allocate it, and carry on */ | |
663 | arm_allocate_interworking_sections (& link_info); | |
664 | #endif /* TARGET_IS_armpe */ | |
665 | #endif /* TARGET_IS_ppcpe */ | |
666 | ||
667 | sort_sections (stat_ptr->head); | |
668 | } | |
669 | \f | |
670 | /* Place an orphan section. We use this to put sections with a '\$' in them | |
671 | into the right place. Any section with a '\$' in them (e.g. .text\$foo) | |
672 | gets mapped to the output section with everything from the '\$' on stripped | |
673 | (e.g. .text). | |
674 | See the Microsoft Portable Executable and Common Object File Format | |
675 | Specification 4.1, section 4.2, Grouped Sections. | |
676 | ||
677 | FIXME: This is now handled by the linker script using wildcards, | |
678 | but I'm leaving this here in case we want to enable it for sections | |
679 | which are not mentioned in the linker script. */ | |
680 | ||
b34976b6 | 681 | static bfd_boolean |
0c7a8e5a | 682 | gld${EMULATION_NAME}_place_orphan (lang_input_statement_type *file, asection *s) |
252b5132 RH |
683 | { |
684 | const char *secname; | |
685 | char *output_secname, *ps; | |
686 | lang_output_section_statement_type *os; | |
687 | lang_statement_union_type *l; | |
688 | ||
689 | if ((s->flags & SEC_ALLOC) == 0) | |
b34976b6 | 690 | return FALSE; |
252b5132 RH |
691 | |
692 | /* Don't process grouped sections unless doing a final link. | |
693 | If they're marked as COMDAT sections, we don't want .text\$foo to | |
694 | end up in .text and then have .text disappear because it's marked | |
695 | link-once-discard. */ | |
1049f94e | 696 | if (link_info.relocatable) |
b34976b6 | 697 | return FALSE; |
252b5132 RH |
698 | |
699 | secname = bfd_get_section_name (s->owner, s); | |
700 | ||
701 | /* Everything from the '\$' on gets deleted so don't allow '\$' as the | |
702 | first character. */ | |
703 | if (*secname == '\$') | |
704 | einfo ("%P%F: section %s has '\$' as first character\n", secname); | |
705 | if (strchr (secname + 1, '\$') == NULL) | |
b34976b6 | 706 | return FALSE; |
252b5132 RH |
707 | |
708 | /* Look up the output section. The Microsoft specs say sections names in | |
709 | image files never contain a '\$'. Fortunately, lang_..._lookup creates | |
710 | the section if it doesn't exist. */ | |
c7e40348 | 711 | output_secname = xstrdup (secname); |
252b5132 RH |
712 | ps = strchr (output_secname + 1, '\$'); |
713 | *ps = 0; | |
714 | os = lang_output_section_statement_lookup (output_secname); | |
715 | ||
716 | /* Find the '\$' wild statement for this section. We currently require the | |
717 | linker script to explicitly mention "*(.foo\$)". | |
718 | FIXME: ppcpe.sc has .CRT\$foo in the .rdata section. According to the | |
719 | Microsoft docs this isn't correct so it's not (currently) handled. */ | |
720 | ||
721 | ps[0] = '\$'; | |
722 | ps[1] = 0; | |
bba1a0c0 | 723 | for (l = os->children.head; l; l = l->header.next) |
3fd36710 AM |
724 | if (l->header.type == lang_wild_statement_enum) |
725 | { | |
726 | struct wildcard_list *sec; | |
727 | ||
728 | for (sec = l->wild_statement.section_list; sec; sec = sec->next) | |
729 | if (sec->spec.name && strcmp (sec->spec.name, output_secname) == 0) | |
730 | break; | |
731 | if (sec) | |
732 | break; | |
733 | } | |
252b5132 RH |
734 | ps[0] = 0; |
735 | if (l == NULL) | |
736 | #if 1 | |
737 | einfo ("%P%F: *(%s\$) missing from linker script\n", output_secname); | |
738 | #else /* FIXME: This block is untried. It exists to convey the intent, | |
739 | should one decide to not require *(.foo\$) to appear in the linker | |
740 | script. */ | |
741 | { | |
3fd36710 AM |
742 | lang_wild_statement_type *new; |
743 | struct wildcard_list *tmp; | |
744 | ||
745 | tmp = (struct wildcard_list *) xmalloc (sizeof *tmp); | |
746 | tmp->next = NULL; | |
747 | tmp->spec.name = xmalloc (strlen (output_secname) + 2); | |
748 | sprintf (tmp->spec.name, "%s\$", output_secname); | |
749 | tmp->spec.exclude_name_list = NULL; | |
b34976b6 | 750 | tmp->sorted = FALSE; |
3fd36710 | 751 | new = new_stat (lang_wild_statement, &os->children); |
252b5132 | 752 | new->filename = NULL; |
b34976b6 | 753 | new->filenames_sorted = FALSE; |
3fd36710 | 754 | new->section_list = tmp; |
b34976b6 | 755 | new->keep_sections = FALSE; |
252b5132 RH |
756 | lang_list_init (&new->children); |
757 | l = new; | |
758 | } | |
759 | #endif | |
760 | ||
761 | /* Link the input section in and we're done for now. | |
762 | The sections still have to be sorted, but that has to wait until | |
763 | all such sections have been processed by us. The sorting is done by | |
764 | sort_sections. */ | |
39dcfe18 | 765 | lang_add_section (&l->wild_statement.children, s, os, file); |
252b5132 | 766 | |
b34976b6 | 767 | return TRUE; |
252b5132 RH |
768 | } |
769 | \f | |
770 | static char * | |
0c7a8e5a | 771 | gld_${EMULATION_NAME}_get_script (int *isfile) |
252b5132 RH |
772 | EOF |
773 | # Scripts compiled in. | |
774 | # sed commands to quote an ld script as a C string. | |
597e2591 | 775 | sc="-f stringify.sed" |
252b5132 RH |
776 | |
777 | cat >>e${EMULATION_NAME}.c <<EOF | |
9b5799b8 | 778 | { |
252b5132 RH |
779 | *isfile = 0; |
780 | ||
1049f94e | 781 | if (link_info.relocatable && config.build_constructors) |
252b5132 RH |
782 | return |
783 | EOF | |
b34976b6 | 784 | sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c |
1049f94e | 785 | echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c |
b34976b6 AM |
786 | sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c |
787 | echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c | |
788 | sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c | |
789 | echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c | |
790 | sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c | |
791 | echo ' ; else return' >> e${EMULATION_NAME}.c | |
792 | sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c | |
793 | echo '; }' >> e${EMULATION_NAME}.c | |
252b5132 RH |
794 | |
795 | cat >>e${EMULATION_NAME}.c <<EOF | |
796 | ||
797 | ||
9b5799b8 | 798 | struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = |
252b5132 RH |
799 | { |
800 | gld_${EMULATION_NAME}_before_parse, | |
801 | syslib_default, | |
802 | hll_default, | |
803 | after_parse_default, | |
804 | gld_${EMULATION_NAME}_after_open, | |
805 | after_allocation_default, | |
806 | set_output_arch_default, | |
807 | ldemul_default_target, | |
808 | gld_${EMULATION_NAME}_before_allocation, | |
809 | gld_${EMULATION_NAME}_get_script, | |
810 | "${EMULATION_NAME}", | |
811 | "${OUTPUT_FORMAT}", | |
812 | NULL, /* finish */ | |
813 | NULL, /* create output section statements */ | |
814 | NULL, /* open dynamic archive */ | |
815 | gld${EMULATION_NAME}_place_orphan, | |
816 | gld_${EMULATION_NAME}_set_symbols, | |
3bcf5557 AM |
817 | NULL, /* parse_args */ |
818 | gld${EMULATION_NAME}_add_options, | |
819 | gld${EMULATION_NAME}_handle_option, | |
e1c47aa4 AM |
820 | NULL, /* unrecognized file */ |
821 | NULL, /* list options */ | |
40d109bf | 822 | NULL, /* recognized file */ |
fac1652d AM |
823 | NULL, /* find_potential_libraries */ |
824 | NULL /* new_vers_pattern */ | |
252b5132 RH |
825 | }; |
826 | EOF |