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252b5132 RH |
1 | /* This file is is generated by a shell script. DO NOT EDIT! */ |
2 | ||
3 | /* AIX emulation code for ppcmacos | |
a2b64bed NC |
4 | Copyright 1991, 1993, 1995, 1996, 1997, 2000 |
5 | Free Software Foundation, Inc. | |
252b5132 RH |
6 | Written by Steve Chamberlain <sac@cygnus.com> |
7 | AIX support by Ian Lance Taylor <ian@cygnus.com> | |
8 | ||
9 | This file is part of GLD, the Gnu Linker. | |
10 | ||
11 | This program is free software; you can redistribute it and/or modify | |
12 | it under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
15 | ||
16 | This program is distributed in the hope that it will be useful, | |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
22 | along with this program; if not, write to the Free Software | |
23 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
24 | ||
25 | #define TARGET_IS_ppcmacos | |
26 | ||
27 | #include "bfd.h" | |
28 | #include "sysdep.h" | |
29 | #include "libiberty.h" | |
30 | #include "getopt.h" | |
31 | #include "bfdlink.h" | |
32 | ||
33 | #include <ctype.h> | |
34 | ||
35 | #include "ld.h" | |
36 | #include "ldmain.h" | |
252b5132 RH |
37 | #include "ldmisc.h" |
38 | #include "ldexp.h" | |
39 | #include "ldlang.h" | |
40 | #include "ldctor.h" | |
41 | #include "ldgram.h" | |
b71e2778 AM |
42 | #include "ldfile.h" |
43 | #include "ldemul.h" | |
252b5132 RH |
44 | |
45 | static void gldppcmacos_before_parse PARAMS ((void)); | |
46 | static int gldppcmacos_parse_args PARAMS ((int, char **)); | |
47 | static void gldppcmacos_after_open PARAMS ((void)); | |
48 | static void gldppcmacos_before_allocation PARAMS ((void)); | |
49 | static void gldppcmacos_read_file PARAMS ((const char *, boolean)); | |
50 | static void gldppcmacos_free PARAMS ((PTR)); | |
51 | static void gldppcmacos_find_relocs | |
52 | PARAMS ((lang_statement_union_type *)); | |
53 | static void gldppcmacos_find_exp_assignment PARAMS ((etree_type *)); | |
54 | static char *gldppcmacos_get_script PARAMS ((int *isfile)); | |
55 | ||
56 | /* The file alignment required for each section. */ | |
57 | static unsigned long file_align; | |
58 | ||
59 | /* The maximum size the stack is permitted to grow. This is stored in | |
60 | the a.out header. */ | |
61 | static unsigned long maxstack; | |
62 | ||
63 | /* The maximum data size. This is stored in the a.out header. */ | |
64 | static unsigned long maxdata; | |
65 | ||
66 | /* Whether to perform garbage collection. */ | |
67 | static int gc = 1; | |
68 | ||
69 | /* The module type to use. */ | |
70 | static unsigned short modtype = ('1' << 8) | 'L'; | |
71 | ||
72 | /* Whether the .text section must be read-only (i.e., no relocs | |
73 | permitted). */ | |
74 | static int textro; | |
75 | ||
76 | /* Whether to implement Unix like linker semantics. */ | |
77 | static int unix_ld; | |
78 | ||
79 | /* Structure used to hold import file list. */ | |
80 | ||
81 | struct filelist | |
82 | { | |
83 | struct filelist *next; | |
84 | const char *name; | |
85 | }; | |
86 | ||
87 | /* List of import files. */ | |
88 | static struct filelist *import_files; | |
89 | ||
90 | /* List of export symbols read from the export files. */ | |
91 | ||
92 | struct export_symbol_list | |
93 | { | |
94 | struct export_symbol_list *next; | |
95 | const char *name; | |
96 | boolean syscall; | |
97 | }; | |
98 | ||
99 | static struct export_symbol_list *export_symbols; | |
100 | ||
101 | /* This routine is called before anything else is done. */ | |
102 | ||
103 | static void | |
104 | gldppcmacos_before_parse() | |
105 | { | |
106 | #ifndef TARGET_ /* I.e., if not generic. */ | |
107 | ldfile_output_architecture = bfd_arch_powerpc; | |
108 | #endif /* not TARGET_ */ | |
109 | } | |
110 | ||
111 | /* Handle AIX specific options. */ | |
112 | ||
113 | static int | |
114 | gldppcmacos_parse_args (argc, argv) | |
115 | int argc; | |
116 | char **argv; | |
117 | { | |
118 | int prevoptind = optind; | |
119 | int prevopterr = opterr; | |
120 | int indx; | |
121 | int longind; | |
122 | int optc; | |
123 | long val; | |
124 | char *end; | |
125 | ||
126 | #define OPTION_IGNORE (300) | |
127 | #define OPTION_AUTOIMP (OPTION_IGNORE + 1) | |
128 | #define OPTION_ERNOTOK (OPTION_AUTOIMP + 1) | |
129 | #define OPTION_EROK (OPTION_ERNOTOK + 1) | |
130 | #define OPTION_EXPORT (OPTION_EROK + 1) | |
131 | #define OPTION_IMPORT (OPTION_EXPORT + 1) | |
132 | #define OPTION_LOADMAP (OPTION_IMPORT + 1) | |
133 | #define OPTION_MAXDATA (OPTION_LOADMAP + 1) | |
134 | #define OPTION_MAXSTACK (OPTION_MAXDATA + 1) | |
135 | #define OPTION_MODTYPE (OPTION_MAXSTACK + 1) | |
136 | #define OPTION_NOAUTOIMP (OPTION_MODTYPE + 1) | |
137 | #define OPTION_NOSTRCMPCT (OPTION_NOAUTOIMP + 1) | |
138 | #define OPTION_PD (OPTION_NOSTRCMPCT + 1) | |
139 | #define OPTION_PT (OPTION_PD + 1) | |
140 | #define OPTION_STRCMPCT (OPTION_PT + 1) | |
141 | #define OPTION_UNIX (OPTION_STRCMPCT + 1) | |
142 | ||
143 | static struct option longopts[] = { | |
144 | {"basis", no_argument, NULL, OPTION_IGNORE}, | |
145 | {"bautoimp", no_argument, NULL, OPTION_AUTOIMP}, | |
146 | {"bcomprld", no_argument, NULL, OPTION_IGNORE}, | |
147 | {"bcrld", no_argument, NULL, OPTION_IGNORE}, | |
148 | {"bcror31", no_argument, NULL, OPTION_IGNORE}, | |
149 | {"bD", required_argument, NULL, OPTION_MAXDATA}, | |
150 | {"bE", required_argument, NULL, OPTION_EXPORT}, | |
151 | {"bernotok", no_argument, NULL, OPTION_ERNOTOK}, | |
152 | {"berok", no_argument, NULL, OPTION_EROK}, | |
153 | {"berrmsg", no_argument, NULL, OPTION_IGNORE}, | |
154 | {"bexport", required_argument, NULL, OPTION_EXPORT}, | |
155 | {"bf", no_argument, NULL, OPTION_ERNOTOK}, | |
156 | {"bgc", no_argument, &gc, 1}, | |
157 | {"bh", required_argument, NULL, OPTION_IGNORE}, | |
158 | {"bhalt", required_argument, NULL, OPTION_IGNORE}, | |
159 | {"bI", required_argument, NULL, OPTION_IMPORT}, | |
160 | {"bimport", required_argument, NULL, OPTION_IMPORT}, | |
161 | {"bl", required_argument, NULL, OPTION_LOADMAP}, | |
162 | {"bloadmap", required_argument, NULL, OPTION_LOADMAP}, | |
163 | {"bmaxdata", required_argument, NULL, OPTION_MAXDATA}, | |
164 | {"bmaxstack", required_argument, NULL, OPTION_MAXSTACK}, | |
165 | {"bM", required_argument, NULL, OPTION_MODTYPE}, | |
166 | {"bmodtype", required_argument, NULL, OPTION_MODTYPE}, | |
167 | {"bnoautoimp", no_argument, NULL, OPTION_NOAUTOIMP}, | |
168 | {"bnodelcsect", no_argument, NULL, OPTION_IGNORE}, | |
169 | {"bnoentry", no_argument, NULL, OPTION_IGNORE}, | |
170 | {"bnogc", no_argument, &gc, 0}, | |
171 | {"bnso", no_argument, NULL, OPTION_NOAUTOIMP}, | |
172 | {"bnostrcmpct", no_argument, NULL, OPTION_NOSTRCMPCT}, | |
173 | {"bnotextro", no_argument, &textro, 0}, | |
174 | {"bnro", no_argument, &textro, 0}, | |
175 | {"bpD", required_argument, NULL, OPTION_PD}, | |
176 | {"bpT", required_argument, NULL, OPTION_PT}, | |
177 | {"bro", no_argument, &textro, 1}, | |
178 | {"bS", required_argument, NULL, OPTION_MAXSTACK}, | |
179 | {"bso", no_argument, NULL, OPTION_AUTOIMP}, | |
180 | {"bstrcmpct", no_argument, NULL, OPTION_STRCMPCT}, | |
181 | {"btextro", no_argument, &textro, 1}, | |
182 | {"static", no_argument, NULL, OPTION_NOAUTOIMP}, | |
183 | {"unix", no_argument, NULL, OPTION_UNIX}, | |
184 | {NULL, no_argument, NULL, 0} | |
185 | }; | |
186 | ||
187 | /* Options supported by the AIX linker which we do not support: -f, | |
188 | -S, -v, -Z, -bbindcmds, -bbinder, -bbindopts, -bcalls, -bcaps, | |
189 | -bcror15, -bdebugopt, -bdbg, -bdelcsect, -bex?, -bfilelist, -bfl, | |
190 | -bgcbypass, -bglink, -binsert, -bi, -bloadmap, -bl, -bmap, -bnl, | |
191 | -bnobind, -bnocomprld, -bnocrld, -bnoerrmsg, -bnoglink, | |
192 | -bnoloadmap, -bnl, -bnoobjreorder, -bnoquiet, -bnoreorder, | |
193 | -bnotypchk, -bnox, -bquiet, -bR, -brename, -breorder, -btypchk, | |
194 | -bx, -bX, -bxref. */ | |
195 | ||
196 | /* If the current option starts with -b, change the first : to an =. | |
197 | The AIX linker uses : to separate the option from the argument; | |
198 | changing it to = lets us treat it as a getopt option. */ | |
199 | indx = optind; | |
200 | if (indx == 0) | |
201 | indx = 1; | |
202 | if (indx < argc && strncmp (argv[indx], "-b", 2) == 0) | |
203 | { | |
204 | char *s; | |
205 | ||
206 | for (s = argv[indx]; *s != '\0'; s++) | |
207 | { | |
208 | if (*s == ':') | |
209 | { | |
210 | *s = '='; | |
211 | break; | |
212 | } | |
213 | } | |
214 | } | |
215 | ||
216 | opterr = 0; | |
217 | optc = getopt_long_only (argc, argv, "-D:H:KT:z", longopts, &longind); | |
218 | opterr = prevopterr; | |
219 | ||
220 | switch (optc) | |
221 | { | |
222 | default: | |
223 | optind = prevoptind; | |
224 | return 0; | |
225 | ||
226 | case 0: | |
227 | /* Long option which just sets a flag. */ | |
228 | break; | |
229 | ||
230 | case 'D': | |
231 | val = strtol (optarg, &end, 0); | |
232 | if (*end != '\0') | |
233 | einfo (_("%P: warning: ignoring invalid -D number %s\n"), optarg); | |
234 | else if (val != -1) | |
235 | lang_section_start (".data", exp_intop (val)); | |
236 | break; | |
237 | ||
238 | case 'H': | |
239 | val = strtoul (optarg, &end, 0); | |
240 | if (*end != '\0' | |
241 | || (val & (val - 1)) != 0) | |
242 | einfo (_("%P: warning: ignoring invalid -H number %s\n"), optarg); | |
243 | else | |
244 | file_align = val; | |
245 | break; | |
246 | ||
247 | case 'K': | |
248 | case 'z': | |
249 | /* FIXME: This should use the page size for the target system. */ | |
250 | file_align = 4096; | |
251 | break; | |
252 | ||
253 | case 'T': | |
254 | /* On AIX this is the same as GNU ld -Ttext. When we see -T | |
255 | number, we assume the AIX option is intended. Otherwise, we | |
256 | assume the usual GNU ld -T option is intended. We can't just | |
257 | ignore the AIX option, because gcc passes it to the linker. */ | |
258 | val = strtoul (optarg, &end, 0); | |
259 | if (*end != '\0') | |
260 | { | |
261 | optind = prevoptind; | |
262 | return 0; | |
263 | } | |
264 | lang_section_start (".text", exp_intop (val)); | |
265 | break; | |
266 | ||
267 | case OPTION_IGNORE: | |
268 | break; | |
269 | ||
270 | case OPTION_AUTOIMP: | |
271 | link_info.static_link = false; | |
272 | break; | |
273 | ||
274 | case OPTION_ERNOTOK: | |
275 | force_make_executable = false; | |
276 | break; | |
277 | ||
278 | case OPTION_EROK: | |
279 | force_make_executable = true; | |
280 | break; | |
281 | ||
282 | case OPTION_EXPORT: | |
283 | gldppcmacos_read_file (optarg, false); | |
284 | break; | |
285 | ||
286 | case OPTION_IMPORT: | |
287 | { | |
288 | struct filelist *n; | |
289 | struct filelist **flpp; | |
290 | ||
291 | n = (struct filelist *) xmalloc (sizeof (struct filelist)); | |
292 | n->next = NULL; | |
293 | n->name = optarg; | |
294 | flpp = &import_files; | |
295 | while (*flpp != NULL) | |
296 | flpp = &(*flpp)->next; | |
297 | *flpp = n; | |
298 | } | |
299 | break; | |
300 | ||
301 | case OPTION_LOADMAP: | |
302 | config.map_filename = optarg; | |
303 | break; | |
304 | ||
305 | case OPTION_MAXDATA: | |
306 | val = strtoul (optarg, &end, 0); | |
307 | if (*end != '\0') | |
308 | einfo (_("%P: warning: ignoring invalid -bmaxdata number %s\n"), | |
309 | optarg); | |
310 | else | |
311 | maxdata = val; | |
312 | break; | |
313 | ||
314 | case OPTION_MAXSTACK: | |
315 | val = strtoul (optarg, &end, 0); | |
316 | if (*end != '\0') | |
317 | einfo (_("%P: warning: ignoring invalid -bmaxstack number %s\n"), | |
318 | optarg); | |
319 | else | |
320 | maxstack = val; | |
321 | break; | |
322 | ||
323 | case OPTION_MODTYPE: | |
324 | if (*optarg == 'S') | |
325 | { | |
326 | link_info.shared = true; | |
327 | ++optarg; | |
328 | } | |
329 | if (*optarg == '\0' || optarg[1] == '\0') | |
330 | einfo (_("%P: warning: ignoring invalid module type %s\n"), optarg); | |
331 | else | |
332 | modtype = (*optarg << 8) | optarg[1]; | |
333 | break; | |
334 | ||
335 | case OPTION_NOAUTOIMP: | |
336 | link_info.static_link = true; | |
337 | break; | |
338 | ||
339 | case OPTION_NOSTRCMPCT: | |
340 | link_info.traditional_format = true; | |
341 | break; | |
342 | ||
343 | case OPTION_PD: | |
344 | /* This sets the page that the .data section is supposed to | |
345 | start on. The offset within the page should still be the | |
346 | offset within the file, so we need to build an appropriate | |
347 | expression. */ | |
348 | val = strtoul (optarg, &end, 0); | |
349 | if (*end != '\0') | |
350 | einfo (_("%P: warning: ignoring invalid -pD number %s\n"), optarg); | |
351 | else | |
352 | { | |
353 | etree_type *t; | |
354 | ||
355 | t = exp_binop ('+', | |
356 | exp_intop (val), | |
357 | exp_binop ('&', | |
358 | exp_nameop (NAME, "."), | |
359 | exp_intop (0xfff))); | |
360 | t = exp_binop ('&', | |
361 | exp_binop ('+', t, exp_intop (7)), | |
362 | exp_intop (~ (bfd_vma) 7)); | |
363 | lang_section_start (".data", t); | |
364 | } | |
365 | break; | |
366 | ||
367 | case OPTION_PT: | |
368 | /* This set the page that the .text section is supposed to start | |
369 | on. The offset within the page should still be the offset | |
370 | within the file. */ | |
371 | val = strtoul (optarg, &end, 0); | |
372 | if (*end != '\0') | |
373 | einfo (_("%P: warning: ignoring invalid -pT number %s\n"), optarg); | |
374 | else | |
375 | { | |
376 | etree_type *t; | |
377 | ||
378 | t = exp_binop ('+', | |
379 | exp_intop (val), | |
380 | exp_nameop (SIZEOF_HEADERS, NULL)); | |
381 | t = exp_binop ('&', | |
382 | exp_binop ('+', t, exp_intop (7)), | |
383 | exp_intop (~ (bfd_vma) 7)); | |
384 | lang_section_start (".text", t); | |
385 | } | |
386 | break; | |
387 | ||
388 | case OPTION_STRCMPCT: | |
389 | link_info.traditional_format = false; | |
390 | break; | |
391 | ||
392 | case OPTION_UNIX: | |
393 | unix_ld = true; | |
394 | break; | |
395 | } | |
396 | ||
397 | return 1; | |
398 | } | |
399 | ||
400 | /* This is called when an input file can not be recognized as a BFD | |
401 | object or an archive. If the file starts with #!, we must treat it | |
402 | as an import file. This is for AIX compatibility. */ | |
403 | ||
404 | static boolean | |
405 | gldppcmacos_unrecognized_file (entry) | |
406 | lang_input_statement_type *entry; | |
407 | { | |
408 | FILE *e; | |
409 | boolean ret; | |
410 | ||
411 | e = fopen (entry->filename, FOPEN_RT); | |
412 | if (e == NULL) | |
413 | return false; | |
414 | ||
415 | ret = false; | |
416 | ||
417 | if (getc (e) == '#' && getc (e) == '!') | |
418 | { | |
419 | struct filelist *n; | |
420 | struct filelist **flpp; | |
421 | ||
422 | n = (struct filelist *) xmalloc (sizeof (struct filelist)); | |
423 | n->next = NULL; | |
424 | n->name = entry->filename; | |
425 | flpp = &import_files; | |
426 | while (*flpp != NULL) | |
427 | flpp = &(*flpp)->next; | |
428 | *flpp = n; | |
429 | ||
430 | ret = true; | |
431 | entry->loaded = true; | |
432 | } | |
433 | ||
434 | fclose (e); | |
435 | ||
436 | return ret; | |
437 | } | |
438 | ||
439 | /* This is called after the input files have been opened. */ | |
440 | ||
441 | static void | |
442 | gldppcmacos_after_open () | |
443 | { | |
444 | boolean r; | |
445 | struct set_info *p; | |
446 | ||
447 | /* Call ldctor_build_sets, after pretending that this is a | |
448 | relocateable link. We do this because AIX requires relocation | |
449 | entries for all references to symbols, even in a final | |
450 | executable. Of course, we only want to do this if we are | |
451 | producing an XCOFF output file. */ | |
452 | r = link_info.relocateable; | |
453 | if (strstr (bfd_get_target (output_bfd), "xcoff") != NULL) | |
454 | link_info.relocateable = true; | |
455 | ldctor_build_sets (); | |
456 | link_info.relocateable = r; | |
457 | ||
458 | /* For each set, record the size, so that the XCOFF backend can | |
459 | output the correct csect length. */ | |
460 | for (p = sets; p != (struct set_info *) NULL; p = p->next) | |
461 | { | |
462 | bfd_size_type size; | |
463 | ||
464 | /* If the symbol is defined, we may have been invoked from | |
465 | collect, and the sets may already have been built, so we do | |
466 | not do anything. */ | |
467 | if (p->h->type == bfd_link_hash_defined | |
468 | || p->h->type == bfd_link_hash_defweak) | |
469 | continue; | |
470 | ||
471 | if (p->reloc != BFD_RELOC_CTOR) | |
472 | { | |
473 | /* Handle this if we need to. */ | |
474 | abort (); | |
475 | } | |
476 | ||
477 | size = (p->count + 2) * 4; | |
478 | if (! bfd_xcoff_link_record_set (output_bfd, &link_info, p->h, size)) | |
479 | einfo (_("%F%P: bfd_xcoff_link_record_set failed: %E\n")); | |
480 | } | |
481 | } | |
482 | ||
483 | /* This is called after the sections have been attached to output | |
484 | sections, but before any sizes or addresses have been set. */ | |
485 | ||
486 | static void | |
487 | gldppcmacos_before_allocation () | |
488 | { | |
489 | struct filelist *fl; | |
490 | struct export_symbol_list *el; | |
491 | char *libpath; | |
492 | asection *special_sections[6]; | |
493 | int i; | |
494 | ||
495 | /* Handle the import and export files, if any. */ | |
496 | for (fl = import_files; fl != NULL; fl = fl->next) | |
497 | gldppcmacos_read_file (fl->name, true); | |
498 | for (el = export_symbols; el != NULL; el = el->next) | |
499 | { | |
500 | struct bfd_link_hash_entry *h; | |
501 | ||
502 | h = bfd_link_hash_lookup (link_info.hash, el->name, false, false, false); | |
503 | if (h == NULL) | |
504 | einfo (_("%P%F: bfd_link_hash_lookup of export symbol failed: %E\n")); | |
505 | if (! bfd_xcoff_export_symbol (output_bfd, &link_info, h, el->syscall)) | |
506 | einfo (_("%P%F: bfd_xcoff_export_symbol failed: %E\n")); | |
507 | } | |
508 | ||
509 | /* Track down all relocations called for by the linker script (these | |
510 | are typically constructor/destructor entries created by | |
511 | CONSTRUCTORS) and let the backend know it will need to create | |
512 | .loader relocs for them. */ | |
513 | lang_for_each_statement (gldppcmacos_find_relocs); | |
514 | ||
515 | /* We need to build LIBPATH from the -L arguments. If any -rpath | |
516 | arguments were used, though, we use -rpath instead, as a GNU | |
517 | extension. */ | |
518 | if (command_line.rpath != NULL) | |
519 | libpath = command_line.rpath; | |
520 | else if (search_head == NULL) | |
521 | libpath = (char *) ""; | |
522 | else | |
523 | { | |
524 | size_t len; | |
525 | search_dirs_type *search; | |
526 | ||
527 | len = strlen (search_head->name); | |
528 | libpath = xmalloc (len + 1); | |
529 | strcpy (libpath, search_head->name); | |
530 | for (search = search_head->next; search != NULL; search = search->next) | |
531 | { | |
532 | size_t nlen; | |
533 | ||
534 | nlen = strlen (search->name); | |
535 | libpath = xrealloc (libpath, len + nlen + 2); | |
536 | libpath[len] = ':'; | |
537 | strcpy (libpath + len + 1, search->name); | |
538 | len += nlen + 1; | |
539 | } | |
540 | } | |
541 | ||
542 | /* Let the XCOFF backend set up the .loader section. */ | |
543 | if (! bfd_xcoff_size_dynamic_sections (output_bfd, &link_info, libpath, | |
544 | entry_symbol, file_align, | |
545 | maxstack, maxdata, | |
546 | gc && ! unix_ld ? true : false, | |
547 | modtype, | |
548 | textro ? true : false, | |
549 | unix_ld, | |
550 | special_sections)) | |
551 | einfo (_("%P%F: failed to set dynamic section sizes: %E\n")); | |
552 | ||
553 | /* Look through the special sections, and put them in the right | |
554 | place in the link ordering. This is especially magic. */ | |
555 | for (i = 0; i < 6; i++) | |
556 | { | |
557 | asection *sec; | |
558 | lang_output_section_statement_type *os; | |
559 | lang_statement_union_type **pls; | |
560 | lang_input_section_type *is; | |
561 | const char *oname; | |
562 | boolean start; | |
563 | ||
564 | sec = special_sections[i]; | |
565 | if (sec == NULL) | |
566 | continue; | |
567 | ||
568 | /* Remove this section from the list of the output section. | |
569 | This assumes we know what the script looks like. */ | |
570 | is = NULL; | |
571 | os = lang_output_section_find (sec->output_section->name); | |
572 | if (os == NULL) | |
573 | einfo (_("%P%F: can't find output section %s\n"), | |
574 | sec->output_section->name); | |
575 | for (pls = &os->children.head; *pls != NULL; pls = &(*pls)->next) | |
576 | { | |
577 | if ((*pls)->header.type == lang_input_section_enum | |
578 | && (*pls)->input_section.section == sec) | |
579 | { | |
580 | is = (lang_input_section_type *) *pls; | |
581 | *pls = (*pls)->next; | |
582 | break; | |
583 | } | |
584 | if ((*pls)->header.type == lang_wild_statement_enum) | |
585 | { | |
586 | lang_statement_union_type **pwls; | |
587 | ||
588 | for (pwls = &(*pls)->wild_statement.children.head; | |
589 | *pwls != NULL; | |
590 | pwls = &(*pwls)->next) | |
591 | { | |
592 | if ((*pwls)->header.type == lang_input_section_enum | |
593 | && (*pwls)->input_section.section == sec) | |
594 | { | |
595 | is = (lang_input_section_type *) *pwls; | |
596 | *pwls = (*pwls)->next; | |
597 | break; | |
598 | } | |
599 | } | |
600 | if (is != NULL) | |
601 | break; | |
602 | } | |
603 | } | |
604 | ||
605 | if (is == NULL) | |
606 | einfo (_("%P%F: can't find %s in output section\n"), | |
607 | bfd_get_section_name (sec->owner, sec)); | |
608 | ||
609 | /* Now figure out where the section should go. */ | |
610 | switch (i) | |
611 | { | |
612 | default: /* to avoid warnings */ | |
613 | case 0: | |
614 | /* _text */ | |
615 | oname = ".text"; | |
616 | start = true; | |
617 | break; | |
618 | case 1: | |
619 | /* _etext */ | |
620 | oname = ".text"; | |
621 | start = false; | |
622 | break; | |
623 | case 2: | |
624 | /* _data */ | |
625 | oname = ".data"; | |
626 | start = true; | |
627 | break; | |
628 | case 3: | |
629 | /* _edata */ | |
630 | oname = ".data"; | |
631 | start = false; | |
632 | break; | |
633 | case 4: | |
634 | case 5: | |
635 | /* _end and end */ | |
636 | oname = ".bss"; | |
637 | start = false; | |
638 | break; | |
639 | } | |
640 | ||
641 | os = lang_output_section_find (oname); | |
642 | ||
643 | if (start) | |
644 | { | |
645 | is->header.next = os->children.head; | |
646 | os->children.head = (lang_statement_union_type *) is; | |
647 | } | |
648 | else | |
649 | { | |
650 | is->header.next = NULL; | |
651 | lang_statement_append (&os->children, | |
652 | (lang_statement_union_type *) is, | |
653 | &is->header.next); | |
654 | } | |
655 | } | |
656 | } | |
657 | ||
658 | /* Read an import or export file. For an import file, this is called | |
659 | by the before_allocation emulation routine. For an export file, | |
660 | this is called by the parse_args emulation routine. */ | |
661 | ||
662 | static void | |
663 | gldppcmacos_read_file (filename, import) | |
664 | const char *filename; | |
665 | boolean import; | |
666 | { | |
667 | struct obstack *o; | |
668 | FILE *f; | |
669 | int lineno; | |
670 | int c; | |
671 | boolean keep; | |
672 | const char *imppath; | |
673 | const char *impfile; | |
674 | const char *impmember; | |
675 | ||
676 | o = (struct obstack *) xmalloc (sizeof (struct obstack)); | |
677 | obstack_specify_allocation (o, 0, 0, xmalloc, gldppcmacos_free); | |
678 | ||
679 | f = fopen (filename, FOPEN_RT); | |
680 | if (f == NULL) | |
681 | { | |
682 | bfd_set_error (bfd_error_system_call); | |
683 | einfo ("%F%s: %E\n", filename); | |
684 | } | |
685 | ||
686 | keep = false; | |
687 | ||
688 | imppath = NULL; | |
689 | impfile = NULL; | |
690 | impmember = NULL; | |
691 | ||
692 | lineno = 0; | |
693 | while ((c = getc (f)) != EOF) | |
694 | { | |
695 | char *s; | |
696 | char *symname; | |
697 | boolean syscall; | |
698 | bfd_vma address; | |
699 | struct bfd_link_hash_entry *h; | |
700 | ||
701 | if (c != '\n') | |
702 | { | |
703 | obstack_1grow (o, c); | |
704 | continue; | |
705 | } | |
706 | ||
707 | obstack_1grow (o, '\0'); | |
708 | ++lineno; | |
709 | ||
710 | s = (char *) obstack_base (o); | |
711 | while (isspace ((unsigned char) *s)) | |
712 | ++s; | |
713 | if (*s == '\0' | |
714 | || *s == '*' | |
715 | || (*s == '#' && s[1] == ' ') | |
716 | || (! import && *s == '#' && s[1] == '!')) | |
717 | { | |
718 | obstack_free (o, obstack_base (o)); | |
719 | continue; | |
720 | } | |
721 | ||
722 | if (*s == '#' && s[1] == '!') | |
723 | { | |
724 | s += 2; | |
725 | while (isspace ((unsigned char) *s)) | |
726 | ++s; | |
727 | if (*s == '\0') | |
728 | { | |
729 | imppath = NULL; | |
730 | impfile = NULL; | |
731 | impmember = NULL; | |
732 | obstack_free (o, obstack_base (o)); | |
733 | } | |
734 | else if (*s == '(') | |
735 | einfo (_("%F%s%d: #! ([member]) is not supported in import files\n"), | |
736 | filename, lineno); | |
737 | else | |
738 | { | |
739 | char cs; | |
740 | char *file; | |
741 | ||
742 | (void) obstack_finish (o); | |
743 | keep = true; | |
744 | imppath = s; | |
745 | file = NULL; | |
746 | while (! isspace ((unsigned char) *s) && *s != '(' && *s != '\0') | |
747 | { | |
748 | if (*s == '/') | |
749 | file = s + 1; | |
750 | ++s; | |
751 | } | |
752 | if (file != NULL) | |
753 | { | |
754 | file[-1] = '\0'; | |
755 | impfile = file; | |
756 | if (imppath == file - 1) | |
757 | imppath = "/"; | |
758 | } | |
759 | else | |
760 | { | |
761 | impfile = imppath; | |
762 | imppath = ""; | |
763 | } | |
764 | cs = *s; | |
765 | *s = '\0'; | |
766 | while (isspace ((unsigned char) cs)) | |
767 | { | |
768 | ++s; | |
769 | cs = *s; | |
770 | } | |
771 | if (cs != '(') | |
772 | { | |
773 | impmember = ""; | |
774 | if (cs != '\0') | |
775 | einfo (_("%s:%d: warning: syntax error in import file\n"), | |
776 | filename, lineno); | |
777 | } | |
778 | else | |
779 | { | |
780 | ++s; | |
781 | impmember = s; | |
782 | while (*s != ')' && *s != '\0') | |
783 | ++s; | |
784 | if (*s == ')') | |
785 | *s = '\0'; | |
786 | else | |
787 | einfo (_("%s:%d: warning: syntax error in import file\n"), | |
788 | filename, lineno); | |
789 | } | |
790 | } | |
791 | ||
792 | continue; | |
793 | } | |
794 | ||
795 | /* This is a symbol to be imported or exported. */ | |
796 | symname = s; | |
797 | syscall = false; | |
798 | address = (bfd_vma) -1; | |
799 | ||
800 | while (! isspace ((unsigned char) *s) && *s != '\0') | |
801 | ++s; | |
802 | if (*s != '\0') | |
803 | { | |
804 | char *se; | |
805 | ||
806 | *s++ = '\0'; | |
807 | ||
808 | while (isspace ((unsigned char) *s)) | |
809 | ++s; | |
810 | ||
811 | se = s; | |
812 | while (! isspace ((unsigned char) *se) && *se != '\0') | |
813 | ++se; | |
814 | if (*se != '\0') | |
815 | { | |
816 | *se++ = '\0'; | |
817 | while (isspace ((unsigned char) *se)) | |
818 | ++se; | |
819 | if (*se != '\0') | |
820 | einfo (_("%s%d: warning: syntax error in import/export file\n"), | |
821 | filename, lineno); | |
822 | } | |
823 | ||
824 | if (strcasecmp (s, "svc") == 0 | |
825 | || strcasecmp (s, "syscall") == 0) | |
826 | syscall = true; | |
827 | else | |
828 | { | |
829 | char *end; | |
830 | ||
831 | address = strtoul (s, &end, 0); | |
832 | if (*end != '\0') | |
833 | einfo (_("%s:%d: warning: syntax error in import/export file\n"), | |
834 | filename, lineno); | |
835 | } | |
836 | } | |
837 | ||
838 | if (! import) | |
839 | { | |
840 | struct export_symbol_list *n; | |
841 | ||
842 | ldlang_add_undef (symname); | |
843 | n = ((struct export_symbol_list *) | |
844 | xmalloc (sizeof (struct export_symbol_list))); | |
845 | n->next = export_symbols; | |
d1b2b2dc | 846 | n->name = xstrdup (symname); |
252b5132 RH |
847 | n->syscall = syscall; |
848 | export_symbols = n; | |
849 | } | |
850 | else | |
851 | { | |
852 | h = bfd_link_hash_lookup (link_info.hash, symname, false, false, | |
853 | true); | |
854 | if (h == NULL || h->type == bfd_link_hash_new) | |
855 | { | |
856 | /* We can just ignore attempts to import an unreferenced | |
857 | symbol. */ | |
858 | } | |
859 | else | |
860 | { | |
861 | if (! bfd_xcoff_import_symbol (output_bfd, &link_info, h, | |
862 | address, imppath, impfile, | |
863 | impmember)) | |
864 | einfo (_("%X%s:%d: failed to import symbol %s: %E\n"), | |
865 | filename, lineno, symname); | |
866 | } | |
867 | } | |
868 | ||
869 | obstack_free (o, obstack_base (o)); | |
870 | } | |
871 | ||
872 | if (obstack_object_size (o) > 0) | |
873 | { | |
874 | einfo (_("%s:%d: warning: ignoring unterminated last line\n"), | |
875 | filename, lineno); | |
876 | obstack_free (o, obstack_base (o)); | |
877 | } | |
878 | ||
879 | if (! keep) | |
880 | { | |
881 | obstack_free (o, NULL); | |
882 | free (o); | |
883 | } | |
884 | } | |
885 | ||
886 | /* This routine saves us from worrying about declaring free. */ | |
887 | ||
888 | static void | |
889 | gldppcmacos_free (p) | |
890 | PTR p; | |
891 | { | |
892 | free (p); | |
893 | } | |
894 | ||
895 | /* This is called by the before_allocation routine via | |
896 | lang_for_each_statement. It looks for relocations and assignments | |
897 | to symbols. */ | |
898 | ||
899 | static void | |
900 | gldppcmacos_find_relocs (s) | |
901 | lang_statement_union_type *s; | |
902 | { | |
903 | if (s->header.type == lang_reloc_statement_enum) | |
904 | { | |
905 | lang_reloc_statement_type *rs; | |
906 | ||
907 | rs = &s->reloc_statement; | |
908 | if (rs->name == NULL) | |
909 | einfo (_("%F%P: only relocations against symbols are permitted\n")); | |
910 | if (! bfd_xcoff_link_count_reloc (output_bfd, &link_info, rs->name)) | |
911 | einfo (_("%F%P: bfd_xcoff_link_count_reloc failed: %E\n")); | |
912 | } | |
913 | ||
914 | if (s->header.type == lang_assignment_statement_enum) | |
915 | gldppcmacos_find_exp_assignment (s->assignment_statement.exp); | |
916 | } | |
917 | ||
918 | /* Look through an expression for an assignment statement. */ | |
919 | ||
920 | static void | |
921 | gldppcmacos_find_exp_assignment (exp) | |
922 | etree_type *exp; | |
923 | { | |
924 | struct bfd_link_hash_entry *h; | |
925 | ||
926 | switch (exp->type.node_class) | |
927 | { | |
928 | case etree_provide: | |
929 | h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst, | |
930 | false, false, false); | |
931 | if (h == NULL) | |
932 | break; | |
933 | /* Fall through. */ | |
934 | case etree_assign: | |
935 | if (strcmp (exp->assign.dst, ".") != 0) | |
936 | { | |
937 | if (! bfd_xcoff_record_link_assignment (output_bfd, &link_info, | |
938 | exp->assign.dst)) | |
939 | einfo (_("%P%F: failed to record assignment to %s: %E\n"), | |
940 | exp->assign.dst); | |
941 | } | |
942 | gldppcmacos_find_exp_assignment (exp->assign.src); | |
943 | break; | |
944 | ||
945 | case etree_binary: | |
946 | gldppcmacos_find_exp_assignment (exp->binary.lhs); | |
947 | gldppcmacos_find_exp_assignment (exp->binary.rhs); | |
948 | break; | |
949 | ||
950 | case etree_trinary: | |
951 | gldppcmacos_find_exp_assignment (exp->trinary.cond); | |
952 | gldppcmacos_find_exp_assignment (exp->trinary.lhs); | |
953 | gldppcmacos_find_exp_assignment (exp->trinary.rhs); | |
954 | break; | |
955 | ||
956 | case etree_unary: | |
957 | gldppcmacos_find_exp_assignment (exp->unary.child); | |
958 | break; | |
959 | ||
960 | default: | |
961 | break; | |
962 | } | |
963 | } | |
964 | ||
965 | static char * | |
966 | gldppcmacos_get_script(isfile) | |
967 | int *isfile; | |
968 | { | |
969 | *isfile = 0; | |
970 | ||
971 | if (link_info.relocateable == true && config.build_constructors == true) | |
972 | return | |
973 | "OUTPUT_FORMAT(\"xcoff-powermac\")\n\ | |
974 | OUTPUT_ARCH(powerpc)\n\ | |
975 | ENTRY(__start)\n\ | |
976 | SECTIONS\n\ | |
977 | {\n\ | |
978 | .pad 0 : { *(.pad) }\n\ | |
979 | .text 0 : {\n\ | |
980 | *(.text)\n\ | |
981 | *(.pr)\n\ | |
982 | *(.ro)\n\ | |
983 | *(.db)\n\ | |
984 | *(.gl)\n\ | |
985 | *(.xo)\n\ | |
986 | *(.ti)\n\ | |
987 | *(.tb)\n\ | |
988 | }\n\ | |
989 | .data 0 : {\n\ | |
990 | *(.data)\n\ | |
991 | *(.rw)\n\ | |
992 | *(.sv)\n\ | |
993 | *(.ua)\n\ | |
994 | . = ALIGN(4);\n\ | |
995 | CONSTRUCTORS\n\ | |
996 | *(.ds)\n\ | |
997 | *(.tc0)\n\ | |
998 | *(.tc)\n\ | |
999 | *(.td)\n\ | |
1000 | }\n\ | |
1001 | .bss : {\n\ | |
1002 | *(.bss)\n\ | |
1003 | *(.bs)\n\ | |
1004 | *(.uc)\n\ | |
1005 | *(COMMON)\n\ | |
1006 | }\n\ | |
1007 | .loader 0 : {\n\ | |
1008 | *(.loader)\n\ | |
1009 | }\n\ | |
1010 | .debug 0 : {\n\ | |
1011 | *(.debug)\n\ | |
1012 | }\n\ | |
1013 | }\n\n" | |
1014 | ; else if (link_info.relocateable == true) return | |
1015 | "OUTPUT_FORMAT(\"xcoff-powermac\")\n\ | |
1016 | OUTPUT_ARCH(powerpc)\n\ | |
1017 | ENTRY(__start)\n\ | |
1018 | SECTIONS\n\ | |
1019 | {\n\ | |
1020 | .pad 0 : { *(.pad) }\n\ | |
1021 | .text 0 : {\n\ | |
1022 | *(.text)\n\ | |
1023 | *(.pr)\n\ | |
1024 | *(.ro)\n\ | |
1025 | *(.db)\n\ | |
1026 | *(.gl)\n\ | |
1027 | *(.xo)\n\ | |
1028 | *(.ti)\n\ | |
1029 | *(.tb)\n\ | |
1030 | }\n\ | |
1031 | .data 0 : {\n\ | |
1032 | *(.data)\n\ | |
1033 | *(.rw)\n\ | |
1034 | *(.sv)\n\ | |
1035 | *(.ua)\n\ | |
1036 | . = ALIGN(4);\n\ | |
1037 | *(.ds)\n\ | |
1038 | *(.tc0)\n\ | |
1039 | *(.tc)\n\ | |
1040 | *(.td)\n\ | |
1041 | }\n\ | |
1042 | .bss : {\n\ | |
1043 | *(.bss)\n\ | |
1044 | *(.bs)\n\ | |
1045 | *(.uc)\n\ | |
1046 | *(COMMON)\n\ | |
1047 | }\n\ | |
1048 | .loader 0 : {\n\ | |
1049 | *(.loader)\n\ | |
1050 | }\n\ | |
1051 | .debug 0 : {\n\ | |
1052 | *(.debug)\n\ | |
1053 | }\n\ | |
1054 | }\n\n" | |
1055 | ; else if (!config.text_read_only) return | |
1056 | "OUTPUT_FORMAT(\"xcoff-powermac\")\n\ | |
1057 | OUTPUT_ARCH(powerpc)\n\ | |
1058 | SEARCH_DIR(/usr/local/powerpc-apple-macos/lib);\n\ | |
1059 | ENTRY(__start)\n\ | |
1060 | SECTIONS\n\ | |
1061 | {\n\ | |
1062 | .pad 0 : { *(.pad) }\n\ | |
1063 | .text : {\n\ | |
1064 | PROVIDE (_text = .);\n\ | |
1065 | *(.text)\n\ | |
1066 | *(.pr)\n\ | |
1067 | *(.ro)\n\ | |
1068 | *(.db)\n\ | |
1069 | *(.gl)\n\ | |
1070 | *(.xo)\n\ | |
1071 | *(.ti)\n\ | |
1072 | *(.tb)\n\ | |
1073 | PROVIDE (_etext = .);\n\ | |
1074 | }\n\ | |
1075 | .data 0 : {\n\ | |
1076 | PROVIDE (_data = .);\n\ | |
1077 | *(.data)\n\ | |
1078 | *(.rw)\n\ | |
1079 | *(.sv)\n\ | |
1080 | *(.ua)\n\ | |
1081 | . = ALIGN(4);\n\ | |
1082 | CONSTRUCTORS\n\ | |
1083 | *(.ds)\n\ | |
1084 | *(.tc0)\n\ | |
1085 | *(.tc)\n\ | |
1086 | *(.td)\n\ | |
1087 | PROVIDE (_edata = .);\n\ | |
1088 | }\n\ | |
1089 | .bss : {\n\ | |
1090 | *(.bss)\n\ | |
1091 | *(.bs)\n\ | |
1092 | *(.uc)\n\ | |
1093 | *(COMMON)\n\ | |
1094 | PROVIDE (_end = .);\n\ | |
1095 | PROVIDE (end = .);\n\ | |
1096 | }\n\ | |
1097 | .loader 0 : {\n\ | |
1098 | *(.loader)\n\ | |
1099 | }\n\ | |
1100 | .debug 0 : {\n\ | |
1101 | *(.debug)\n\ | |
1102 | }\n\ | |
1103 | }\n\n" | |
1104 | ; else if (!config.magic_demand_paged) return | |
1105 | "OUTPUT_FORMAT(\"xcoff-powermac\")\n\ | |
1106 | OUTPUT_ARCH(powerpc)\n\ | |
1107 | SEARCH_DIR(/usr/local/powerpc-apple-macos/lib);\n\ | |
1108 | ENTRY(__start)\n\ | |
1109 | SECTIONS\n\ | |
1110 | {\n\ | |
1111 | .pad 0 : { *(.pad) }\n\ | |
1112 | .text : {\n\ | |
1113 | PROVIDE (_text = .);\n\ | |
1114 | *(.text)\n\ | |
1115 | *(.pr)\n\ | |
1116 | *(.ro)\n\ | |
1117 | *(.db)\n\ | |
1118 | *(.gl)\n\ | |
1119 | *(.xo)\n\ | |
1120 | *(.ti)\n\ | |
1121 | *(.tb)\n\ | |
1122 | PROVIDE (_etext = .);\n\ | |
1123 | }\n\ | |
1124 | .data 0 : {\n\ | |
1125 | PROVIDE (_data = .);\n\ | |
1126 | *(.data)\n\ | |
1127 | *(.rw)\n\ | |
1128 | *(.sv)\n\ | |
1129 | *(.ua)\n\ | |
1130 | . = ALIGN(4);\n\ | |
1131 | CONSTRUCTORS\n\ | |
1132 | *(.ds)\n\ | |
1133 | *(.tc0)\n\ | |
1134 | *(.tc)\n\ | |
1135 | *(.td)\n\ | |
1136 | PROVIDE (_edata = .);\n\ | |
1137 | }\n\ | |
1138 | .bss : {\n\ | |
1139 | *(.bss)\n\ | |
1140 | *(.bs)\n\ | |
1141 | *(.uc)\n\ | |
1142 | *(COMMON)\n\ | |
1143 | PROVIDE (_end = .);\n\ | |
1144 | PROVIDE (end = .);\n\ | |
1145 | }\n\ | |
1146 | .loader 0 : {\n\ | |
1147 | *(.loader)\n\ | |
1148 | }\n\ | |
1149 | .debug 0 : {\n\ | |
1150 | *(.debug)\n\ | |
1151 | }\n\ | |
1152 | }\n\n" | |
1153 | ; else return | |
1154 | "OUTPUT_FORMAT(\"xcoff-powermac\")\n\ | |
1155 | OUTPUT_ARCH(powerpc)\n\ | |
1156 | SEARCH_DIR(/usr/local/powerpc-apple-macos/lib);\n\ | |
1157 | ENTRY(__start)\n\ | |
1158 | SECTIONS\n\ | |
1159 | {\n\ | |
1160 | .pad 0 : { *(.pad) }\n\ | |
1161 | .text : {\n\ | |
1162 | PROVIDE (_text = .);\n\ | |
1163 | *(.text)\n\ | |
1164 | *(.pr)\n\ | |
1165 | *(.ro)\n\ | |
1166 | *(.db)\n\ | |
1167 | *(.gl)\n\ | |
1168 | *(.xo)\n\ | |
1169 | *(.ti)\n\ | |
1170 | *(.tb)\n\ | |
1171 | PROVIDE (_etext = .);\n\ | |
1172 | }\n\ | |
1173 | .data 0 : {\n\ | |
1174 | PROVIDE (_data = .);\n\ | |
1175 | *(.data)\n\ | |
1176 | *(.rw)\n\ | |
1177 | *(.sv)\n\ | |
1178 | *(.ua)\n\ | |
1179 | . = ALIGN(4);\n\ | |
1180 | CONSTRUCTORS\n\ | |
1181 | *(.ds)\n\ | |
1182 | *(.tc0)\n\ | |
1183 | *(.tc)\n\ | |
1184 | *(.td)\n\ | |
1185 | PROVIDE (_edata = .);\n\ | |
1186 | }\n\ | |
1187 | .bss : {\n\ | |
1188 | *(.bss)\n\ | |
1189 | *(.bs)\n\ | |
1190 | *(.uc)\n\ | |
1191 | *(COMMON)\n\ | |
1192 | PROVIDE (_end = .);\n\ | |
1193 | PROVIDE (end = .);\n\ | |
1194 | }\n\ | |
1195 | .loader 0 : {\n\ | |
1196 | *(.loader)\n\ | |
1197 | }\n\ | |
1198 | .debug 0 : {\n\ | |
1199 | *(.debug)\n\ | |
1200 | }\n\ | |
1201 | }\n\n" | |
1202 | ; } | |
1203 | ||
1204 | struct ld_emulation_xfer_struct ld_ppcmacos_emulation = | |
1205 | { | |
1206 | gldppcmacos_before_parse, | |
1207 | syslib_default, | |
1208 | hll_default, | |
1209 | after_parse_default, | |
1210 | gldppcmacos_after_open, | |
1211 | after_allocation_default, | |
1212 | set_output_arch_default, | |
1213 | ldemul_default_target, | |
1214 | gldppcmacos_before_allocation, | |
1215 | gldppcmacos_get_script, | |
1216 | "ppcmacos", | |
1217 | "xcoff-powermac", | |
1218 | 0, /* finish */ | |
1219 | 0, /* create_output_section_statements */ | |
1220 | 0, /* open_dynamic_archive */ | |
1221 | 0, /* place_orphan */ | |
1222 | 0, /* set_symbols */ | |
1223 | gldppcmacos_parse_args, | |
1224 | gldppcmacos_unrecognized_file | |
1225 | }; |