Commit | Line | Data |
---|---|---|
252b5132 RH |
1 | # This shell script emits a C file. -*- C -*- |
2 | # It does some substitutions. | |
86af25fe L |
3 | if [ -z "$MACHINE" ]; then |
4 | OUTPUT_ARCH=${ARCH} | |
5 | else | |
6 | OUTPUT_ARCH=${ARCH}:${MACHINE} | |
7 | fi | |
252b5132 RH |
8 | cat >e${EMULATION_NAME}.c <<EOF |
9 | /* This file is is generated by a shell script. DO NOT EDIT! */ | |
10 | ||
11 | /* AIX emulation code for ${EMULATION_NAME} | |
8529105a AM |
12 | Copyright 1991, 1993, 1995, 1996, 1997, 1998, 2000, 2001 |
13 | Free Software Foundation, Inc. | |
252b5132 RH |
14 | Written by Steve Chamberlain <sac@cygnus.com> |
15 | AIX support by Ian Lance Taylor <ian@cygnus.com> | |
3b1b01cf | 16 | AIX 64 bit support by Tom Rix <trix@redhat.com> |
252b5132 RH |
17 | |
18 | This file is part of GLD, the Gnu Linker. | |
19 | ||
20 | This program is free software; you can redistribute it and/or modify | |
21 | it under the terms of the GNU General Public License as published by | |
22 | the Free Software Foundation; either version 2 of the License, or | |
23 | (at your option) any later version. | |
24 | ||
25 | This program is distributed in the hope that it will be useful, | |
26 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | GNU General Public License for more details. | |
29 | ||
30 | You should have received a copy of the GNU General Public License | |
31 | along with this program; if not, write to the Free Software | |
32 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
33 | ||
34 | #define TARGET_IS_${EMULATION_NAME} | |
35 | ||
36 | #include "bfd.h" | |
37 | #include "sysdep.h" | |
38 | #include "libiberty.h" | |
3882b010 | 39 | #include "safe-ctype.h" |
252b5132 RH |
40 | #include "getopt.h" |
41 | #include "obstack.h" | |
42 | #include "bfdlink.h" | |
43 | ||
252b5132 RH |
44 | #include "ld.h" |
45 | #include "ldmain.h" | |
252b5132 RH |
46 | #include "ldmisc.h" |
47 | #include "ldexp.h" | |
48 | #include "ldlang.h" | |
20713691 AM |
49 | #include "ldfile.h" |
50 | #include "ldemul.h" | |
252b5132 RH |
51 | #include "ldctor.h" |
52 | #include "ldgram.h" | |
53 | ||
3b1b01cf TR |
54 | #include "coff/internal.h" |
55 | #include "coff/xcoff.h" | |
56 | ||
252b5132 RH |
57 | static void gld${EMULATION_NAME}_before_parse PARAMS ((void)); |
58 | static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **)); | |
59 | static void gld${EMULATION_NAME}_after_open PARAMS ((void)); | |
249172c3 | 60 | static char *choose_target PARAMS ((int, char **)); |
252b5132 RH |
61 | static void gld${EMULATION_NAME}_before_allocation PARAMS ((void)); |
62 | static void gld${EMULATION_NAME}_read_file PARAMS ((const char *, boolean)); | |
63 | static void gld${EMULATION_NAME}_free PARAMS ((PTR)); | |
249172c3 TR |
64 | static void gld${EMULATION_NAME}_find_relocs |
65 | PARAMS ((lang_statement_union_type *)); | |
252b5132 RH |
66 | static void gld${EMULATION_NAME}_find_exp_assignment PARAMS ((etree_type *)); |
67 | static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile)); | |
48f6162b AJ |
68 | static boolean gld${EMULATION_NAME}_unrecognized_file |
69 | PARAMS ((lang_input_statement_type *)); | |
9a4c7f16 TR |
70 | static void gld${EMULATION_NAME}_create_output_section_statements |
71 | PARAMS((void)); | |
249172c3 TR |
72 | static int is_syscall PARAMS ((char *, unsigned int *)); |
73 | static int change_symbol_mode PARAMS ((char *)); | |
252b5132 RH |
74 | |
75 | /* The file alignment required for each section. */ | |
76 | static unsigned long file_align; | |
77 | ||
78 | /* The maximum size the stack is permitted to grow. This is stored in | |
79 | the a.out header. */ | |
80 | static unsigned long maxstack; | |
81 | ||
82 | /* The maximum data size. This is stored in the a.out header. */ | |
83 | static unsigned long maxdata; | |
84 | ||
85 | /* Whether to perform garbage collection. */ | |
86 | static int gc = 1; | |
87 | ||
88 | /* The module type to use. */ | |
89 | static unsigned short modtype = ('1' << 8) | 'L'; | |
90 | ||
91 | /* Whether the .text section must be read-only (i.e., no relocs | |
92 | permitted). */ | |
93 | static int textro; | |
94 | ||
95 | /* Whether to implement Unix like linker semantics. */ | |
96 | static int unix_ld; | |
97 | ||
98 | /* Structure used to hold import file list. */ | |
99 | ||
100 | struct filelist | |
101 | { | |
102 | struct filelist *next; | |
103 | const char *name; | |
104 | }; | |
105 | ||
106 | /* List of import files. */ | |
107 | static struct filelist *import_files; | |
108 | ||
109 | /* List of export symbols read from the export files. */ | |
110 | ||
111 | struct export_symbol_list | |
112 | { | |
113 | struct export_symbol_list *next; | |
114 | const char *name; | |
252b5132 RH |
115 | }; |
116 | ||
117 | static struct export_symbol_list *export_symbols; | |
118 | ||
3b1b01cf TR |
119 | /* Maintains the 32 or 64 bit mode state of import file */ |
120 | static unsigned int symbol_mode = 0x04; | |
121 | ||
742aeb63 TR |
122 | /* Which symbol modes are valid */ |
123 | static unsigned int symbol_mode_mask = 0x0d; | |
124 | ||
125 | /* Whether this is a 64 bit link */ | |
126 | static int is_64bit = 0; | |
127 | ||
128 | /* Which syscalls from import file are valid */ | |
129 | static unsigned int syscall_mask = 0x77; | |
130 | ||
9a4c7f16 TR |
131 | /* fake file for -binitfini support */ |
132 | static lang_input_statement_type *initfini_file; | |
133 | ||
252b5132 RH |
134 | /* This routine is called before anything else is done. */ |
135 | ||
136 | static void | |
fab80407 | 137 | gld${EMULATION_NAME}_before_parse () |
252b5132 RH |
138 | { |
139 | #ifndef TARGET_ /* I.e., if not generic. */ | |
86af25fe L |
140 | const bfd_arch_info_type *arch = bfd_scan_arch ("${OUTPUT_ARCH}"); |
141 | if (arch) | |
142 | { | |
143 | ldfile_output_architecture = arch->arch; | |
144 | ldfile_output_machine = arch->mach; | |
145 | ldfile_output_machine_name = arch->printable_name; | |
146 | } | |
147 | else | |
148 | ldfile_output_architecture = bfd_arch_${ARCH}; | |
252b5132 RH |
149 | #endif /* not TARGET_ */ |
150 | config.has_shared = true; | |
3b1b01cf | 151 | |
9a4c7f16 TR |
152 | /* The link_info.[init|fini]_functions are initialized in ld/lexsup.c. |
153 | Override them here so we can use the link_info.init_function as a | |
154 | state flag that lets the backend know that -binitfini has been done. */ | |
155 | ||
3b1b01cf TR |
156 | link_info.init_function = NULL; |
157 | link_info.fini_function = NULL; | |
158 | ||
252b5132 RH |
159 | } |
160 | ||
161 | /* Handle AIX specific options. */ | |
162 | ||
163 | static int | |
164 | gld${EMULATION_NAME}_parse_args (argc, argv) | |
165 | int argc; | |
166 | char **argv; | |
167 | { | |
168 | int prevoptind = optind; | |
169 | int prevopterr = opterr; | |
170 | int indx; | |
171 | int longind; | |
172 | int optc; | |
3b1b01cf | 173 | bfd_signed_vma val; |
252b5132 RH |
174 | char *end; |
175 | ||
249172c3 TR |
176 | enum |
177 | { | |
3b1b01cf | 178 | OPTION_IGNORE = 300, |
fab80407 AM |
179 | OPTION_AUTOIMP, |
180 | OPTION_ERNOTOK, | |
181 | OPTION_EROK, | |
182 | OPTION_EXPORT, | |
183 | OPTION_IMPORT, | |
184 | OPTION_INITFINI, | |
185 | OPTION_LOADMAP, | |
186 | OPTION_MAXDATA, | |
187 | OPTION_MAXSTACK, | |
188 | OPTION_MODTYPE, | |
189 | OPTION_NOAUTOIMP, | |
190 | OPTION_NOSTRCMPCT, | |
191 | OPTION_PD, | |
192 | OPTION_PT, | |
193 | OPTION_STRCMPCT, | |
742aeb63 TR |
194 | OPTION_UNIX, |
195 | OPTION_32, | |
196 | OPTION_64, | |
3b1b01cf TR |
197 | }; |
198 | ||
9a4c7f16 TR |
199 | /* -binitfini has special handling in the linker backend. The native linker |
200 | uses the arguemnts to generate a table of init and fini functions for | |
201 | the executable. The important use for this option is to support aix 4.2+ | |
202 | c++ constructors and destructors. This is tied into gcc via collect2.c. | |
203 | ||
204 | The function table is accessed by the runtime linker/loader by checking if | |
205 | the first symbol in the loader symbol table is __rtinit. The gnu linker | |
206 | generates this symbol and makes it the first loader symbol. */ | |
3b1b01cf TR |
207 | |
208 | static const struct option longopts[] = { | |
252b5132 RH |
209 | {"basis", no_argument, NULL, OPTION_IGNORE}, |
210 | {"bautoimp", no_argument, NULL, OPTION_AUTOIMP}, | |
211 | {"bcomprld", no_argument, NULL, OPTION_IGNORE}, | |
212 | {"bcrld", no_argument, NULL, OPTION_IGNORE}, | |
213 | {"bcror31", no_argument, NULL, OPTION_IGNORE}, | |
214 | {"bD", required_argument, NULL, OPTION_MAXDATA}, | |
215 | {"bE", required_argument, NULL, OPTION_EXPORT}, | |
216 | {"bernotok", no_argument, NULL, OPTION_ERNOTOK}, | |
217 | {"berok", no_argument, NULL, OPTION_EROK}, | |
218 | {"berrmsg", no_argument, NULL, OPTION_IGNORE}, | |
219 | {"bexport", required_argument, NULL, OPTION_EXPORT}, | |
220 | {"bf", no_argument, NULL, OPTION_ERNOTOK}, | |
221 | {"bgc", no_argument, &gc, 1}, | |
222 | {"bh", required_argument, NULL, OPTION_IGNORE}, | |
223 | {"bhalt", required_argument, NULL, OPTION_IGNORE}, | |
224 | {"bI", required_argument, NULL, OPTION_IMPORT}, | |
225 | {"bimport", required_argument, NULL, OPTION_IMPORT}, | |
3b1b01cf | 226 | {"binitfini", required_argument, NULL, OPTION_INITFINI}, |
252b5132 RH |
227 | {"bl", required_argument, NULL, OPTION_LOADMAP}, |
228 | {"bloadmap", required_argument, NULL, OPTION_LOADMAP}, | |
229 | {"bmaxdata", required_argument, NULL, OPTION_MAXDATA}, | |
230 | {"bmaxstack", required_argument, NULL, OPTION_MAXSTACK}, | |
231 | {"bM", required_argument, NULL, OPTION_MODTYPE}, | |
232 | {"bmodtype", required_argument, NULL, OPTION_MODTYPE}, | |
233 | {"bnoautoimp", no_argument, NULL, OPTION_NOAUTOIMP}, | |
234 | {"bnodelcsect", no_argument, NULL, OPTION_IGNORE}, | |
235 | {"bnoentry", no_argument, NULL, OPTION_IGNORE}, | |
236 | {"bnogc", no_argument, &gc, 0}, | |
237 | {"bnso", no_argument, NULL, OPTION_NOAUTOIMP}, | |
238 | {"bnostrcmpct", no_argument, NULL, OPTION_NOSTRCMPCT}, | |
239 | {"bnotextro", no_argument, &textro, 0}, | |
240 | {"bnro", no_argument, &textro, 0}, | |
241 | {"bpD", required_argument, NULL, OPTION_PD}, | |
242 | {"bpT", required_argument, NULL, OPTION_PT}, | |
243 | {"bro", no_argument, &textro, 1}, | |
244 | {"bS", required_argument, NULL, OPTION_MAXSTACK}, | |
245 | {"bso", no_argument, NULL, OPTION_AUTOIMP}, | |
246 | {"bstrcmpct", no_argument, NULL, OPTION_STRCMPCT}, | |
247 | {"btextro", no_argument, &textro, 1}, | |
742aeb63 TR |
248 | {"b32", no_argument, NULL, OPTION_32}, |
249 | {"b64", no_argument, NULL, OPTION_64}, | |
252b5132 RH |
250 | {"static", no_argument, NULL, OPTION_NOAUTOIMP}, |
251 | {"unix", no_argument, NULL, OPTION_UNIX}, | |
252 | {NULL, no_argument, NULL, 0} | |
253 | }; | |
254 | ||
255 | /* Options supported by the AIX linker which we do not support: -f, | |
256 | -S, -v, -Z, -bbindcmds, -bbinder, -bbindopts, -bcalls, -bcaps, | |
257 | -bcror15, -bdebugopt, -bdbg, -bdelcsect, -bex?, -bfilelist, -bfl, | |
258 | -bgcbypass, -bglink, -binsert, -bi, -bloadmap, -bl, -bmap, -bnl, | |
259 | -bnobind, -bnocomprld, -bnocrld, -bnoerrmsg, -bnoglink, | |
260 | -bnoloadmap, -bnl, -bnoobjreorder, -bnoquiet, -bnoreorder, | |
261 | -bnotypchk, -bnox, -bquiet, -bR, -brename, -breorder, -btypchk, | |
262 | -bx, -bX, -bxref. */ | |
263 | ||
264 | /* If the current option starts with -b, change the first : to an =. | |
265 | The AIX linker uses : to separate the option from the argument; | |
266 | changing it to = lets us treat it as a getopt option. */ | |
267 | indx = optind; | |
fab80407 | 268 | if (indx == 0) |
249172c3 | 269 | indx = 1; |
fab80407 AM |
270 | |
271 | if (indx < argc && strncmp (argv[indx], "-b", 2) == 0) | |
272 | { | |
273 | char *s; | |
274 | ||
275 | for (s = argv[indx]; *s != '\0'; s++) | |
276 | { | |
277 | if (*s == ':') | |
278 | { | |
279 | *s = '='; | |
280 | break; | |
281 | } | |
282 | } | |
252b5132 | 283 | } |
3b1b01cf | 284 | |
252b5132 RH |
285 | |
286 | /* We add s and u so to the short options list so that -s and -u on | |
287 | the command line do not match -static and -unix. */ | |
288 | ||
289 | opterr = 0; | |
290 | optc = getopt_long_only (argc, argv, "-D:H:KT:zsu", longopts, &longind); | |
291 | opterr = prevopterr; | |
292 | ||
293 | switch (optc) | |
294 | { | |
295 | case 's': | |
296 | case 'u': | |
297 | default: | |
298 | optind = prevoptind; | |
299 | return 0; | |
300 | ||
301 | case 0: | |
302 | /* Long option which just sets a flag. */ | |
303 | break; | |
304 | ||
305 | case 'D': | |
3b1b01cf | 306 | val = strtoll (optarg, &end, 0); |
252b5132 RH |
307 | if (*end != '\0') |
308 | einfo ("%P: warning: ignoring invalid -D number %s\n", optarg); | |
309 | else if (val != -1) | |
310 | lang_section_start (".data", exp_intop (val)); | |
311 | break; | |
312 | ||
313 | case 'H': | |
314 | val = strtoul (optarg, &end, 0); | |
249172c3 | 315 | if (*end != '\0' || (val & (val - 1)) != 0) |
252b5132 RH |
316 | einfo ("%P: warning: ignoring invalid -H number %s\n", optarg); |
317 | else | |
318 | file_align = val; | |
319 | break; | |
320 | ||
321 | case 'K': | |
322 | case 'z': | |
323 | /* FIXME: This should use the page size for the target system. */ | |
324 | file_align = 4096; | |
325 | break; | |
326 | ||
327 | case 'T': | |
328 | /* On AIX this is the same as GNU ld -Ttext. When we see -T | |
329 | number, we assume the AIX option is intended. Otherwise, we | |
330 | assume the usual GNU ld -T option is intended. We can't just | |
331 | ignore the AIX option, because gcc passes it to the linker. */ | |
3b1b01cf | 332 | val = strtoull (optarg, &end, 0); |
252b5132 RH |
333 | if (*end != '\0') |
334 | { | |
335 | optind = prevoptind; | |
336 | return 0; | |
337 | } | |
338 | lang_section_start (".text", exp_intop (val)); | |
339 | break; | |
340 | ||
341 | case OPTION_IGNORE: | |
342 | break; | |
343 | ||
fab80407 AM |
344 | case OPTION_INITFINI: |
345 | { | |
346 | /* | |
347 | * The aix linker init fini has the format : | |
348 | * | |
349 | * -binitfini:[ Initial][:Termination][:Priority] | |
350 | * | |
351 | * it allows the Termination and Priority to be optional. | |
352 | * | |
353 | * Since we support only one init/fini pair, we ignore the Priority. | |
354 | * | |
355 | * Define the special symbol __rtinit. | |
356 | * | |
357 | * strtok does not correctly handle the case of -binitfini::fini: so | |
358 | * do it by hand | |
359 | */ | |
360 | char *t, *i, *f; | |
361 | ||
362 | i = t = optarg; | |
363 | while (*t && ':' != *t) | |
364 | t++; | |
365 | if (*t) | |
366 | *t++ = 0; | |
367 | ||
368 | if (0 != strlen (i)) | |
249172c3 | 369 | link_info.init_function = i; |
3b1b01cf | 370 | |
fab80407 AM |
371 | f = t; |
372 | while (*t && ':' != *t) | |
373 | t++; | |
374 | *t = 0; | |
3b1b01cf | 375 | |
fab80407 | 376 | if (0 != strlen (f)) |
249172c3 | 377 | link_info.fini_function = f; |
3b1b01cf | 378 | } |
249172c3 TR |
379 | break; |
380 | ||
252b5132 RH |
381 | case OPTION_AUTOIMP: |
382 | link_info.static_link = false; | |
383 | break; | |
384 | ||
385 | case OPTION_ERNOTOK: | |
386 | force_make_executable = false; | |
387 | break; | |
388 | ||
389 | case OPTION_EROK: | |
390 | force_make_executable = true; | |
391 | break; | |
392 | ||
393 | case OPTION_EXPORT: | |
394 | gld${EMULATION_NAME}_read_file (optarg, false); | |
395 | break; | |
396 | ||
397 | case OPTION_IMPORT: | |
398 | { | |
399 | struct filelist *n; | |
400 | struct filelist **flpp; | |
401 | ||
402 | n = (struct filelist *) xmalloc (sizeof (struct filelist)); | |
403 | n->next = NULL; | |
404 | n->name = optarg; | |
405 | flpp = &import_files; | |
406 | while (*flpp != NULL) | |
407 | flpp = &(*flpp)->next; | |
408 | *flpp = n; | |
409 | } | |
410 | break; | |
411 | ||
412 | case OPTION_LOADMAP: | |
413 | config.map_filename = optarg; | |
414 | break; | |
415 | ||
416 | case OPTION_MAXDATA: | |
3b1b01cf | 417 | val = strtoull (optarg, &end, 0); |
252b5132 | 418 | if (*end != '\0') |
fab80407 | 419 | einfo ("%P: warning: ignoring invalid -bmaxdata number %s\n", optarg); |
252b5132 RH |
420 | else |
421 | maxdata = val; | |
422 | break; | |
423 | ||
424 | case OPTION_MAXSTACK: | |
3b1b01cf | 425 | val = strtoull (optarg, &end, 0); |
252b5132 | 426 | if (*end != '\0') |
249172c3 TR |
427 | einfo ("%P: warning: ignoring invalid -bmaxstack number %s\n", |
428 | optarg); | |
252b5132 RH |
429 | else |
430 | maxstack = val; | |
431 | break; | |
432 | ||
433 | case OPTION_MODTYPE: | |
434 | if (*optarg == 'S') | |
435 | { | |
436 | link_info.shared = true; | |
437 | ++optarg; | |
438 | } | |
439 | if (*optarg == '\0' || optarg[1] == '\0') | |
440 | einfo ("%P: warning: ignoring invalid module type %s\n", optarg); | |
441 | else | |
442 | modtype = (*optarg << 8) | optarg[1]; | |
443 | break; | |
444 | ||
445 | case OPTION_NOAUTOIMP: | |
446 | link_info.static_link = true; | |
447 | break; | |
448 | ||
449 | case OPTION_NOSTRCMPCT: | |
450 | link_info.traditional_format = true; | |
451 | break; | |
452 | ||
453 | case OPTION_PD: | |
454 | /* This sets the page that the .data section is supposed to | |
455 | start on. The offset within the page should still be the | |
456 | offset within the file, so we need to build an appropriate | |
457 | expression. */ | |
3b1b01cf | 458 | val = strtoull (optarg, &end, 0); |
252b5132 RH |
459 | if (*end != '\0') |
460 | einfo ("%P: warning: ignoring invalid -pD number %s\n", optarg); | |
461 | else | |
462 | { | |
463 | etree_type *t; | |
464 | ||
465 | t = exp_binop ('+', | |
466 | exp_intop (val), | |
467 | exp_binop ('&', | |
468 | exp_nameop (NAME, "."), | |
469 | exp_intop (0xfff))); | |
470 | t = exp_binop ('&', | |
471 | exp_binop ('+', t, exp_intop (31)), | |
249172c3 | 472 | exp_intop (~(bfd_vma) 31)); |
252b5132 RH |
473 | lang_section_start (".data", t); |
474 | } | |
475 | break; | |
476 | ||
477 | case OPTION_PT: | |
478 | /* This set the page that the .text section is supposed to start | |
479 | on. The offset within the page should still be the offset | |
480 | within the file. */ | |
3b1b01cf | 481 | val = strtoull (optarg, &end, 0); |
252b5132 RH |
482 | if (*end != '\0') |
483 | einfo ("%P: warning: ignoring invalid -pT number %s\n", optarg); | |
484 | else | |
485 | { | |
486 | etree_type *t; | |
487 | ||
488 | t = exp_binop ('+', | |
489 | exp_intop (val), | |
490 | exp_nameop (SIZEOF_HEADERS, NULL)); | |
491 | t = exp_binop ('&', | |
492 | exp_binop ('+', t, exp_intop (31)), | |
249172c3 | 493 | exp_intop (~(bfd_vma) 31)); |
252b5132 RH |
494 | lang_section_start (".text", t); |
495 | } | |
496 | break; | |
497 | ||
498 | case OPTION_STRCMPCT: | |
499 | link_info.traditional_format = false; | |
500 | break; | |
501 | ||
502 | case OPTION_UNIX: | |
503 | unix_ld = true; | |
504 | break; | |
742aeb63 TR |
505 | |
506 | case OPTION_32: | |
507 | is_64bit = 0; | |
508 | syscall_mask = 0x77; | |
509 | symbol_mode_mask = 0x0d; | |
510 | break; | |
511 | ||
512 | case OPTION_64: | |
513 | is_64bit = 1; | |
514 | syscall_mask = 0xcc; | |
515 | symbol_mode_mask = 0x0e; | |
516 | break; | |
517 | ||
252b5132 RH |
518 | } |
519 | ||
520 | return 1; | |
521 | } | |
522 | ||
523 | /* This is called when an input file can not be recognized as a BFD | |
524 | object or an archive. If the file starts with #!, we must treat it | |
525 | as an import file. This is for AIX compatibility. */ | |
526 | ||
527 | static boolean | |
528 | gld${EMULATION_NAME}_unrecognized_file (entry) | |
529 | lang_input_statement_type *entry; | |
530 | { | |
531 | FILE *e; | |
532 | boolean ret; | |
533 | ||
534 | e = fopen (entry->filename, FOPEN_RT); | |
535 | if (e == NULL) | |
536 | return false; | |
537 | ||
538 | ret = false; | |
539 | ||
540 | if (getc (e) == '#' && getc (e) == '!') | |
541 | { | |
542 | struct filelist *n; | |
543 | struct filelist **flpp; | |
544 | ||
545 | n = (struct filelist *) xmalloc (sizeof (struct filelist)); | |
546 | n->next = NULL; | |
547 | n->name = entry->filename; | |
548 | flpp = &import_files; | |
549 | while (*flpp != NULL) | |
550 | flpp = &(*flpp)->next; | |
551 | *flpp = n; | |
552 | ||
553 | ret = true; | |
554 | entry->loaded = true; | |
555 | } | |
556 | ||
557 | fclose (e); | |
558 | ||
559 | return ret; | |
560 | } | |
561 | ||
562 | /* This is called after the input files have been opened. */ | |
563 | ||
564 | static void | |
565 | gld${EMULATION_NAME}_after_open () | |
566 | { | |
567 | boolean r; | |
568 | struct set_info *p; | |
569 | ||
570 | /* Call ldctor_build_sets, after pretending that this is a | |
571 | relocateable link. We do this because AIX requires relocation | |
572 | entries for all references to symbols, even in a final | |
573 | executable. Of course, we only want to do this if we are | |
574 | producing an XCOFF output file. */ | |
575 | r = link_info.relocateable; | |
576 | if (strstr (bfd_get_target (output_bfd), "xcoff") != NULL) | |
577 | link_info.relocateable = true; | |
578 | ldctor_build_sets (); | |
579 | link_info.relocateable = r; | |
580 | ||
581 | /* For each set, record the size, so that the XCOFF backend can | |
582 | output the correct csect length. */ | |
583 | for (p = sets; p != (struct set_info *) NULL; p = p->next) | |
584 | { | |
585 | bfd_size_type size; | |
586 | ||
587 | /* If the symbol is defined, we may have been invoked from | |
249172c3 TR |
588 | collect, and the sets may already have been built, so we do |
589 | not do anything. */ | |
252b5132 RH |
590 | if (p->h->type == bfd_link_hash_defined |
591 | || p->h->type == bfd_link_hash_defweak) | |
592 | continue; | |
593 | ||
594 | if (p->reloc != BFD_RELOC_CTOR) | |
595 | { | |
596 | /* Handle this if we need to. */ | |
597 | abort (); | |
598 | } | |
599 | ||
600 | size = (p->count + 2) * 4; | |
249172c3 | 601 | if (!bfd_xcoff_link_record_set (output_bfd, &link_info, p->h, size)) |
252b5132 RH |
602 | einfo ("%F%P: bfd_xcoff_link_record_set failed: %E\n"); |
603 | } | |
604 | } | |
605 | ||
606 | /* This is called after the sections have been attached to output | |
607 | sections, but before any sizes or addresses have been set. */ | |
608 | ||
609 | static void | |
610 | gld${EMULATION_NAME}_before_allocation () | |
611 | { | |
612 | struct filelist *fl; | |
613 | struct export_symbol_list *el; | |
614 | char *libpath; | |
3b1b01cf | 615 | asection *special_sections[XCOFF_NUMBER_OF_SPECIAL_SECTIONS]; |
252b5132 RH |
616 | int i; |
617 | ||
618 | /* Handle the import and export files, if any. */ | |
619 | for (fl = import_files; fl != NULL; fl = fl->next) | |
620 | gld${EMULATION_NAME}_read_file (fl->name, true); | |
fab80407 AM |
621 | for (el = export_symbols; el != NULL; el = el->next) |
622 | { | |
623 | struct bfd_link_hash_entry *h; | |
624 | ||
625 | h = bfd_link_hash_lookup (link_info.hash, el->name, false, false, false); | |
626 | if (h == NULL) | |
627 | einfo ("%P%F: bfd_link_hash_lookup of export symbol failed: %E\n"); | |
249172c3 | 628 | if (!bfd_xcoff_export_symbol (output_bfd, &link_info, h)) |
fab80407 AM |
629 | einfo ("%P%F: bfd_xcoff_export_symbol failed: %E\n"); |
630 | } | |
252b5132 RH |
631 | |
632 | /* Track down all relocations called for by the linker script (these | |
633 | are typically constructor/destructor entries created by | |
634 | CONSTRUCTORS) and let the backend know it will need to create | |
635 | .loader relocs for them. */ | |
636 | lang_for_each_statement (gld${EMULATION_NAME}_find_relocs); | |
637 | ||
638 | /* We need to build LIBPATH from the -L arguments. If any -rpath | |
639 | arguments were used, though, we use -rpath instead, as a GNU | |
640 | extension. */ | |
641 | if (command_line.rpath != NULL) | |
642 | libpath = command_line.rpath; | |
643 | else if (search_head == NULL) | |
644 | libpath = (char *) ""; | |
645 | else | |
646 | { | |
647 | size_t len; | |
648 | search_dirs_type *search; | |
649 | ||
650 | len = strlen (search_head->name); | |
651 | libpath = xmalloc (len + 1); | |
652 | strcpy (libpath, search_head->name); | |
653 | for (search = search_head->next; search != NULL; search = search->next) | |
654 | { | |
655 | size_t nlen; | |
656 | ||
657 | nlen = strlen (search->name); | |
658 | libpath = xrealloc (libpath, len + nlen + 2); | |
659 | libpath[len] = ':'; | |
660 | strcpy (libpath + len + 1, search->name); | |
661 | len += nlen + 1; | |
662 | } | |
663 | } | |
664 | ||
665 | /* Let the XCOFF backend set up the .loader section. */ | |
249172c3 TR |
666 | if (!bfd_xcoff_size_dynamic_sections (output_bfd, &link_info, libpath, |
667 | entry_symbol, file_align, | |
668 | maxstack, maxdata, | |
669 | gc && !unix_ld ? true : false, | |
670 | modtype, | |
671 | textro ? true : false, | |
672 | unix_ld, special_sections)) | |
252b5132 RH |
673 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); |
674 | ||
675 | /* Look through the special sections, and put them in the right | |
676 | place in the link ordering. This is especially magic. */ | |
fab80407 AM |
677 | for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++) |
678 | { | |
679 | asection *sec; | |
680 | lang_output_section_statement_type *os; | |
681 | lang_statement_union_type **pls; | |
682 | lang_input_section_type *is; | |
683 | const char *oname; | |
684 | boolean start; | |
685 | ||
686 | sec = special_sections[i]; | |
687 | if (sec == NULL) | |
688 | continue; | |
3b1b01cf | 689 | |
fab80407 | 690 | /* Remove this section from the list of the output section. |
249172c3 | 691 | This assumes we know what the script looks like. */ |
fab80407 AM |
692 | is = NULL; |
693 | os = lang_output_section_find (sec->output_section->name); | |
249172c3 | 694 | if (os == NULL) |
fab80407 AM |
695 | einfo ("%P%F: can't find output section %s\n", |
696 | sec->output_section->name); | |
fab80407 AM |
697 | |
698 | for (pls = &os->children.head; *pls != NULL; pls = &(*pls)->header.next) | |
699 | { | |
249172c3 TR |
700 | if ((*pls)->header.type == lang_input_section_enum |
701 | && (*pls)->input_section.section == sec) | |
fab80407 | 702 | { |
249172c3 | 703 | is = (lang_input_section_type *) * pls; |
fab80407 | 704 | *pls = (*pls)->header.next; |
252b5132 | 705 | break; |
fab80407 AM |
706 | } |
707 | ||
708 | if ((*pls)->header.type == lang_wild_statement_enum) | |
709 | { | |
710 | lang_statement_union_type **pwls; | |
711 | ||
712 | for (pwls = &(*pls)->wild_statement.children.head; | |
249172c3 | 713 | *pwls != NULL; pwls = &(*pwls)->header.next) |
fab80407 AM |
714 | { |
715 | ||
249172c3 TR |
716 | if ((*pwls)->header.type == lang_input_section_enum |
717 | && (*pwls)->input_section.section == sec) | |
fab80407 | 718 | { |
249172c3 | 719 | is = (lang_input_section_type *) * pwls; |
fab80407 AM |
720 | *pwls = (*pwls)->header.next; |
721 | break; | |
722 | } | |
723 | } | |
724 | ||
725 | if (is != NULL) | |
726 | break; | |
727 | } | |
728 | } | |
729 | ||
730 | if (is == NULL) | |
731 | { | |
732 | einfo ("%P%F: can't find %s in output section\n", | |
733 | bfd_get_section_name (sec->owner, sec)); | |
3b1b01cf | 734 | } |
fab80407 AM |
735 | |
736 | /* Now figure out where the section should go. */ | |
737 | switch (i) | |
738 | { | |
739 | ||
249172c3 | 740 | default: /* to avoid warnings */ |
fab80407 AM |
741 | case XCOFF_SPECIAL_SECTION_TEXT: |
742 | /* _text */ | |
743 | oname = ".text"; | |
744 | start = true; | |
3b1b01cf | 745 | break; |
252b5132 | 746 | |
fab80407 AM |
747 | case XCOFF_SPECIAL_SECTION_ETEXT: |
748 | /* _etext */ | |
749 | oname = ".text"; | |
750 | start = false; | |
751 | break; | |
252b5132 | 752 | |
fab80407 AM |
753 | case XCOFF_SPECIAL_SECTION_DATA: |
754 | /* _data */ | |
755 | oname = ".data"; | |
756 | start = true; | |
757 | break; | |
252b5132 | 758 | |
fab80407 AM |
759 | case XCOFF_SPECIAL_SECTION_EDATA: |
760 | /* _edata */ | |
761 | oname = ".data"; | |
762 | start = false; | |
763 | break; | |
764 | ||
765 | case XCOFF_SPECIAL_SECTION_END: | |
766 | case XCOFF_SPECIAL_SECTION_END2: | |
767 | /* _end and end */ | |
768 | oname = ".bss"; | |
769 | start = false; | |
770 | break; | |
771 | } | |
252b5132 | 772 | |
fab80407 | 773 | os = lang_output_section_find (oname); |
252b5132 | 774 | |
fab80407 AM |
775 | if (start) |
776 | { | |
777 | is->header.next = os->children.head; | |
778 | os->children.head = (lang_statement_union_type *) is; | |
779 | } | |
780 | else | |
781 | { | |
782 | is->header.next = NULL; | |
783 | lang_statement_append (&os->children, | |
784 | (lang_statement_union_type *) is, | |
785 | &is->header.next); | |
786 | } | |
3b1b01cf | 787 | } |
3b1b01cf TR |
788 | } |
789 | ||
742aeb63 TR |
790 | static char * |
791 | choose_target (argc, argv) | |
792 | int argc; | |
793 | char **argv; | |
794 | { | |
795 | int i, j, jmax; | |
796 | static char *from_outside; | |
797 | static char *from_inside; | |
249172c3 TR |
798 | static char *argv_to_target[][2] = { |
799 | {NULL, "${OUTPUT_FORMAT}"}, | |
800 | {"-b32", "aixcoff-rs6000"}, | |
801 | {"-b64", "aixcoff64-rs6000"}, | |
802 | }; | |
742aeb63 TR |
803 | |
804 | jmax = 3; | |
805 | ||
806 | from_outside = getenv (TARGET_ENVIRON); | |
249172c3 | 807 | if (from_outside != (char *) NULL) |
742aeb63 TR |
808 | return from_outside; |
809 | ||
810 | /* Set to default. */ | |
811 | from_inside = argv_to_target[0][1]; | |
812 | for (i = 1; i < argc; i++) | |
813 | { | |
814 | for (j = 1; j < jmax; j++) | |
815 | { | |
816 | if (0 == strcmp (argv[i], argv_to_target[j][0])) | |
817 | from_inside = argv_to_target[j][1]; | |
818 | } | |
819 | } | |
249172c3 | 820 | |
742aeb63 TR |
821 | return from_inside; |
822 | } | |
823 | ||
249172c3 TR |
824 | /* Returns |
825 | 1 : state changed | |
826 | 0 : no change */ | |
827 | static int | |
828 | change_symbol_mode (input) | |
829 | char *input; | |
3b1b01cf | 830 | { |
3b1b01cf | 831 | char *symbol_mode_string[] = { |
249172c3 TR |
832 | "# 32", /* 0x01 */ |
833 | "# 64", /* 0x02 */ | |
834 | "# no32", /* 0x04 */ | |
835 | "# no64", /* 0x08 */ | |
3b1b01cf TR |
836 | NULL, |
837 | }; | |
249172c3 | 838 | |
3b1b01cf TR |
839 | unsigned int bit; |
840 | char *string; | |
841 | ||
249172c3 | 842 | for (bit = 0;; bit++) |
fab80407 AM |
843 | { |
844 | string = symbol_mode_string[bit]; | |
249172c3 | 845 | if (string == NULL) |
fab80407 AM |
846 | return 0; |
847 | ||
848 | if (0 == strcmp (input, string)) | |
849 | { | |
850 | symbol_mode = (1 << bit); | |
851 | return 1; | |
852 | } | |
3b1b01cf | 853 | } |
3b1b01cf TR |
854 | /* should not be here */ |
855 | return 0; | |
856 | } | |
857 | ||
249172c3 TR |
858 | /* Returns |
859 | 1 : yes | |
860 | 0 : ignore | |
861 | -1 : error, try something else */ | |
862 | static int | |
863 | is_syscall (input, flag) | |
864 | char *input; | |
865 | unsigned int *flag; | |
3b1b01cf | 866 | { |
3b1b01cf TR |
867 | unsigned int bit; |
868 | char *string; | |
1fdf0249 TR |
869 | |
870 | struct sc { | |
871 | char *syscall_string; | |
872 | unsigned int flag; | |
873 | } s [] = { | |
874 | { "svc" /* 0x01 */, XCOFF_SYSCALL32 }, | |
875 | { "svc32" /* 0x02 */, XCOFF_SYSCALL32 }, | |
876 | { "svc3264" /* 0x04 */, XCOFF_SYSCALL32 | XCOFF_SYSCALL64 }, | |
877 | { "svc64" /* 0x08 */, XCOFF_SYSCALL64 }, | |
878 | { "syscall" /* 0x10 */, XCOFF_SYSCALL32 }, | |
879 | { "syscall32" /* 0x20 */, XCOFF_SYSCALL32 }, | |
880 | { "syscall3264" /* 0x40 */, XCOFF_SYSCALL32 | XCOFF_SYSCALL64 }, | |
881 | { "syscall64" /* 0x80 */, XCOFF_SYSCALL64 }, | |
882 | { NULL, 0 }, | |
3b1b01cf TR |
883 | }; |
884 | ||
1fdf0249 | 885 | *flag = 0; |
3b1b01cf | 886 | |
249172c3 TR |
887 | for (bit = 0;; bit++) |
888 | { | |
889 | string = s[bit].syscall_string; | |
890 | if (string == NULL) | |
891 | return -1; | |
fab80407 | 892 | |
249172c3 TR |
893 | if (0 == strcmp (input, string)) |
894 | { | |
895 | if (1 << bit & syscall_mask) | |
896 | { | |
897 | *flag = s[bit].flag; | |
898 | return 1; | |
899 | } | |
900 | else | |
901 | { | |
902 | return 0; | |
903 | } | |
904 | } | |
252b5132 | 905 | } |
3b1b01cf TR |
906 | /* should not be here */ |
907 | return -1; | |
252b5132 RH |
908 | } |
909 | ||
910 | /* Read an import or export file. For an import file, this is called | |
911 | by the before_allocation emulation routine. For an export file, | |
912 | this is called by the parse_args emulation routine. */ | |
913 | ||
914 | static void | |
915 | gld${EMULATION_NAME}_read_file (filename, import) | |
916 | const char *filename; | |
917 | boolean import; | |
918 | { | |
919 | struct obstack *o; | |
920 | FILE *f; | |
921 | int lineno; | |
922 | int c; | |
923 | boolean keep; | |
924 | const char *imppath; | |
925 | const char *impfile; | |
926 | const char *impmember; | |
927 | ||
928 | o = (struct obstack *) xmalloc (sizeof (struct obstack)); | |
929 | obstack_specify_allocation (o, 0, 0, xmalloc, gld${EMULATION_NAME}_free); | |
930 | ||
931 | f = fopen (filename, FOPEN_RT); | |
932 | if (f == NULL) | |
933 | { | |
934 | bfd_set_error (bfd_error_system_call); | |
935 | einfo ("%F%s: %E\n", filename); | |
936 | } | |
937 | ||
938 | keep = false; | |
939 | ||
940 | imppath = NULL; | |
941 | impfile = NULL; | |
942 | impmember = NULL; | |
943 | ||
944 | lineno = 0; | |
3b1b01cf | 945 | |
fab80407 | 946 | /* |
3b1b01cf TR |
947 | * default to 32 and 64 bit mode |
948 | * symbols at top of /lib/syscalls.exp do not have a mode modifier and they | |
949 | * are not repeated, assume 64 bit routines also want to use them. | |
950 | * See the routine change_symbol_mode for more information. | |
951 | */ | |
952 | symbol_mode = 0x04; | |
953 | ||
252b5132 RH |
954 | while ((c = getc (f)) != EOF) |
955 | { | |
956 | char *s; | |
957 | char *symname; | |
1fdf0249 | 958 | unsigned int syscall_flag = 0; |
252b5132 RH |
959 | bfd_vma address; |
960 | struct bfd_link_hash_entry *h; | |
961 | ||
962 | if (c != '\n') | |
963 | { | |
964 | obstack_1grow (o, c); | |
965 | continue; | |
966 | } | |
967 | ||
968 | obstack_1grow (o, '\0'); | |
969 | ++lineno; | |
970 | ||
971 | s = (char *) obstack_base (o); | |
3882b010 | 972 | while (ISSPACE (*s)) |
252b5132 | 973 | ++s; |
fab80407 AM |
974 | if (*s == '\0' |
975 | || *s == '*' | |
976 | || change_symbol_mode (s) | |
977 | || (*s == '#' && s[1] == ' ') | |
249172c3 | 978 | || (!import && *s == '#' && s[1] == '!')) |
252b5132 RH |
979 | { |
980 | obstack_free (o, obstack_base (o)); | |
981 | continue; | |
982 | } | |
983 | ||
984 | if (*s == '#' && s[1] == '!') | |
985 | { | |
986 | s += 2; | |
3882b010 | 987 | while (ISSPACE (*s)) |
252b5132 RH |
988 | ++s; |
989 | if (*s == '\0') | |
990 | { | |
991 | imppath = NULL; | |
992 | impfile = NULL; | |
993 | impmember = NULL; | |
994 | obstack_free (o, obstack_base (o)); | |
995 | } | |
996 | else if (*s == '(') | |
997 | einfo ("%F%s%d: #! ([member]) is not supported in import files\n", | |
998 | filename, lineno); | |
999 | else | |
1000 | { | |
1001 | char cs; | |
1002 | char *file; | |
1003 | ||
1004 | (void) obstack_finish (o); | |
1005 | keep = true; | |
1006 | imppath = s; | |
1007 | file = NULL; | |
249172c3 | 1008 | while (!ISSPACE (*s) && *s != '(' && *s != '\0') |
252b5132 RH |
1009 | { |
1010 | if (*s == '/') | |
1011 | file = s + 1; | |
1012 | ++s; | |
1013 | } | |
1014 | if (file != NULL) | |
1015 | { | |
1016 | file[-1] = '\0'; | |
1017 | impfile = file; | |
1018 | if (imppath == file - 1) | |
1019 | imppath = "/"; | |
1020 | } | |
1021 | else | |
1022 | { | |
1023 | impfile = imppath; | |
1024 | imppath = ""; | |
1025 | } | |
1026 | cs = *s; | |
1027 | *s = '\0'; | |
3882b010 | 1028 | while (ISSPACE (cs)) |
252b5132 RH |
1029 | { |
1030 | ++s; | |
1031 | cs = *s; | |
1032 | } | |
1033 | if (cs != '(') | |
1034 | { | |
1035 | impmember = ""; | |
1036 | if (cs != '\0') | |
1037 | einfo ("%s:%d: warning: syntax error in import file\n", | |
1038 | filename, lineno); | |
1039 | } | |
1040 | else | |
1041 | { | |
1042 | ++s; | |
1043 | impmember = s; | |
1044 | while (*s != ')' && *s != '\0') | |
1045 | ++s; | |
1046 | if (*s == ')') | |
1047 | *s = '\0'; | |
1048 | else | |
1049 | einfo ("%s:%d: warning: syntax error in import file\n", | |
1050 | filename, lineno); | |
1051 | } | |
1052 | } | |
1053 | ||
1054 | continue; | |
1055 | } | |
1056 | ||
742aeb63 | 1057 | if (symbol_mode & symbol_mode_mask) |
fab80407 AM |
1058 | { |
1059 | /* This is a symbol to be imported or exported. */ | |
1060 | symname = s; | |
1fdf0249 | 1061 | syscall_flag = 0; |
fab80407 AM |
1062 | address = (bfd_vma) -1; |
1063 | ||
249172c3 | 1064 | while (!ISSPACE (*s) && *s != '\0') |
fab80407 AM |
1065 | ++s; |
1066 | if (*s != '\0') | |
1067 | { | |
1068 | char *se; | |
3b1b01cf | 1069 | |
fab80407 | 1070 | *s++ = '\0'; |
3b1b01cf | 1071 | |
3882b010 | 1072 | while (ISSPACE (*s)) |
fab80407 AM |
1073 | ++s; |
1074 | ||
1075 | se = s; | |
249172c3 | 1076 | while (!ISSPACE (*se) && *se != '\0') |
fab80407 AM |
1077 | ++se; |
1078 | if (*se != '\0') | |
1079 | { | |
1080 | *se++ = '\0'; | |
3882b010 | 1081 | while (ISSPACE (*se)) |
fab80407 AM |
1082 | ++se; |
1083 | if (*se != '\0') | |
1084 | einfo ("%s%d: warning: syntax error in import/export file\n", | |
1085 | filename, lineno); | |
1086 | } | |
1087 | ||
1088 | if (s != se) | |
1089 | { | |
1090 | int status; | |
1091 | char *end; | |
1092 | ||
249172c3 | 1093 | status = is_syscall (s, &syscall_flag); |
1fdf0249 | 1094 | |
249172c3 TR |
1095 | if (0 > status) |
1096 | { | |
1097 | /* not a system call, check for address */ | |
1098 | address = strtoul (s, &end, 0); | |
1099 | if (*end != '\0') | |
1100 | { | |
1101 | einfo ("%s:%d: warning: syntax error in import/export file\n", | |
1102 | filename, lineno); | |
1103 | ||
1104 | } | |
1105 | } | |
3b1b01cf | 1106 | } |
252b5132 | 1107 | } |
3b1b01cf | 1108 | |
249172c3 | 1109 | if (!import) |
fab80407 AM |
1110 | { |
1111 | struct export_symbol_list *n; | |
1112 | ||
1113 | ldlang_add_undef (symname); | |
1114 | n = ((struct export_symbol_list *) | |
1115 | xmalloc (sizeof (struct export_symbol_list))); | |
1116 | n->next = export_symbols; | |
1117 | n->name = xstrdup (symname); | |
fab80407 AM |
1118 | export_symbols = n; |
1119 | } | |
1120 | else | |
1121 | { | |
1122 | h = bfd_link_hash_lookup (link_info.hash, symname, false, false, | |
1123 | true); | |
1124 | if (h == NULL || h->type == bfd_link_hash_new) | |
1125 | { | |
1126 | /* We can just ignore attempts to import an unreferenced | |
1127 | symbol. */ | |
1128 | } | |
1129 | else | |
1130 | { | |
249172c3 TR |
1131 | if (!bfd_xcoff_import_symbol (output_bfd, &link_info, h, |
1132 | address, imppath, impfile, | |
1133 | impmember, syscall_flag)) | |
fab80407 AM |
1134 | einfo ("%X%s:%d: failed to import symbol %s: %E\n", |
1135 | filename, lineno, symname); | |
1136 | } | |
1137 | } | |
1138 | } | |
252b5132 RH |
1139 | obstack_free (o, obstack_base (o)); |
1140 | } | |
fab80407 | 1141 | |
252b5132 RH |
1142 | if (obstack_object_size (o) > 0) |
1143 | { | |
fab80407 AM |
1144 | einfo ("%s:%d: warning: ignoring unterminated last line\n", |
1145 | filename, lineno); | |
1146 | obstack_free (o, obstack_base (o)); | |
1147 | } | |
252b5132 | 1148 | |
249172c3 | 1149 | if (!keep) |
fab80407 AM |
1150 | { |
1151 | obstack_free (o, NULL); | |
1152 | free (o); | |
252b5132 | 1153 | } |
fab80407 | 1154 | } |
252b5132 RH |
1155 | |
1156 | /* This routine saves us from worrying about declaring free. */ | |
1157 | ||
1158 | static void | |
1159 | gld${EMULATION_NAME}_free (p) | |
1160 | PTR p; | |
1161 | { | |
1162 | free (p); | |
1163 | } | |
1164 | ||
1165 | /* This is called by the before_allocation routine via | |
1166 | lang_for_each_statement. It looks for relocations and assignments | |
1167 | to symbols. */ | |
1168 | ||
1169 | static void | |
1170 | gld${EMULATION_NAME}_find_relocs (s) | |
1171 | lang_statement_union_type *s; | |
1172 | { | |
1173 | if (s->header.type == lang_reloc_statement_enum) | |
1174 | { | |
1175 | lang_reloc_statement_type *rs; | |
1176 | ||
1177 | rs = &s->reloc_statement; | |
1178 | if (rs->name == NULL) | |
1179 | einfo ("%F%P: only relocations against symbols are permitted\n"); | |
249172c3 | 1180 | if (!bfd_xcoff_link_count_reloc (output_bfd, &link_info, rs->name)) |
252b5132 RH |
1181 | einfo ("%F%P: bfd_xcoff_link_count_reloc failed: %E\n"); |
1182 | } | |
1183 | ||
1184 | if (s->header.type == lang_assignment_statement_enum) | |
1185 | gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp); | |
1186 | } | |
1187 | ||
1188 | /* Look through an expression for an assignment statement. */ | |
1189 | ||
1190 | static void | |
1191 | gld${EMULATION_NAME}_find_exp_assignment (exp) | |
1192 | etree_type *exp; | |
1193 | { | |
1194 | struct bfd_link_hash_entry *h; | |
1195 | ||
1196 | switch (exp->type.node_class) | |
1197 | { | |
1198 | case etree_provide: | |
1199 | h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst, | |
1200 | false, false, false); | |
1201 | if (h == NULL) | |
1202 | break; | |
1203 | /* Fall through. */ | |
1204 | case etree_assign: | |
1205 | if (strcmp (exp->assign.dst, ".") != 0) | |
1206 | { | |
249172c3 TR |
1207 | if (!bfd_xcoff_record_link_assignment (output_bfd, &link_info, |
1208 | exp->assign.dst)) | |
252b5132 RH |
1209 | einfo ("%P%F: failed to record assignment to %s: %E\n", |
1210 | exp->assign.dst); | |
1211 | } | |
1212 | gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src); | |
1213 | break; | |
1214 | ||
1215 | case etree_binary: | |
1216 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs); | |
1217 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs); | |
1218 | break; | |
1219 | ||
1220 | case etree_trinary: | |
1221 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond); | |
1222 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs); | |
1223 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs); | |
1224 | break; | |
1225 | ||
1226 | case etree_unary: | |
1227 | gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child); | |
1228 | break; | |
1229 | ||
1230 | default: | |
1231 | break; | |
1232 | } | |
1233 | } | |
1234 | ||
1235 | static char * | |
fab80407 | 1236 | gld${EMULATION_NAME}_get_script (isfile) |
252b5132 RH |
1237 | int *isfile; |
1238 | EOF | |
1239 | ||
1240 | if test -n "$COMPILE_IN" | |
1241 | then | |
1242 | # Scripts compiled in. | |
1243 | ||
1244 | # sed commands to quote an ld script as a C string. | |
5f642101 | 1245 | sc="-f ${srcdir}/emultempl/ostring.sed" |
252b5132 RH |
1246 | |
1247 | cat >>e${EMULATION_NAME}.c <<EOF | |
fab80407 | 1248 | { |
252b5132 RH |
1249 | *isfile = 0; |
1250 | ||
1251 | if (link_info.relocateable == true && config.build_constructors == true) | |
1252 | return | |
1253 | EOF | |
1254 | sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c | |
1255 | echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c | |
1256 | sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c | |
1257 | echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c | |
1258 | sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c | |
1259 | echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c | |
1260 | sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c | |
1261 | echo ' ; else return' >> e${EMULATION_NAME}.c | |
1262 | sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c | |
1263 | echo '; }' >> e${EMULATION_NAME}.c | |
1264 | ||
1265 | else | |
1266 | # Scripts read from the filesystem. | |
1267 | ||
1268 | cat >>e${EMULATION_NAME}.c <<EOF | |
fab80407 | 1269 | { |
252b5132 RH |
1270 | *isfile = 1; |
1271 | ||
1272 | if (link_info.relocateable == true && config.build_constructors == true) | |
1273 | return "ldscripts/${EMULATION_NAME}.xu"; | |
1274 | else if (link_info.relocateable == true) | |
1275 | return "ldscripts/${EMULATION_NAME}.xr"; | |
1276 | else if (!config.text_read_only) | |
1277 | return "ldscripts/${EMULATION_NAME}.xbn"; | |
1278 | else if (!config.magic_demand_paged) | |
1279 | return "ldscripts/${EMULATION_NAME}.xn"; | |
1280 | else | |
1281 | return "ldscripts/${EMULATION_NAME}.x"; | |
1282 | } | |
1283 | EOF | |
1284 | ||
1285 | fi | |
1286 | ||
1287 | cat >>e${EMULATION_NAME}.c <<EOF | |
1288 | ||
9a4c7f16 TR |
1289 | static void |
1290 | gld${EMULATION_NAME}_create_output_section_statements() | |
1291 | { | |
1292 | /* __rtinit */ | |
1293 | if ((bfd_get_flavour (output_bfd) == bfd_target_xcoff_flavour) | |
1294 | && (link_info.init_function != NULL || link_info.fini_function != NULL)) | |
1295 | { | |
1296 | ||
1297 | initfini_file = lang_add_input_file ("initfini", | |
1298 | lang_input_file_is_file_enum, | |
1299 | NULL); | |
1300 | ||
1301 | initfini_file->the_bfd = bfd_create ("initfini", output_bfd); | |
1302 | if (initfini_file->the_bfd == NULL | |
1303 | || ! bfd_set_arch_mach (initfini_file->the_bfd, | |
1304 | bfd_get_arch (output_bfd), | |
1305 | bfd_get_mach (output_bfd))) | |
1306 | { | |
1307 | einfo ("%X%P: can not create BFD %E\n"); | |
1308 | return; | |
1309 | } | |
1310 | ||
1311 | /* Call backend to fill in the rest */ | |
1312 | if (false == bfd_xcoff_link_generate_rtinit (initfini_file->the_bfd, | |
1313 | link_info.init_function, | |
1314 | link_info.fini_function)) | |
1315 | { | |
1316 | einfo ("%X%P: can not create BFD %E\n"); | |
1317 | return; | |
1318 | } | |
1319 | } | |
1320 | } | |
1321 | ||
249172c3 | 1322 | struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = { |
252b5132 RH |
1323 | gld${EMULATION_NAME}_before_parse, |
1324 | syslib_default, | |
1325 | hll_default, | |
1326 | after_parse_default, | |
1327 | gld${EMULATION_NAME}_after_open, | |
1328 | after_allocation_default, | |
1329 | set_output_arch_default, | |
742aeb63 | 1330 | choose_target, |
252b5132 RH |
1331 | gld${EMULATION_NAME}_before_allocation, |
1332 | gld${EMULATION_NAME}_get_script, | |
1333 | "${EMULATION_NAME}", | |
1334 | "${OUTPUT_FORMAT}", | |
249172c3 | 1335 | 0, /* finish */ |
9a4c7f16 | 1336 | gld${EMULATION_NAME}_create_output_section_statements, |
249172c3 TR |
1337 | 0, /* open_dynamic_archive */ |
1338 | 0, /* place_orphan */ | |
1339 | 0, /* set_symbols */ | |
252b5132 | 1340 | gld${EMULATION_NAME}_parse_args, |
40d109bf | 1341 | gld${EMULATION_NAME}_unrecognized_file, |
249172c3 TR |
1342 | NULL, /* list_options */ |
1343 | NULL, /* recognized_file */ | |
1344 | NULL, /* find potential_libraries */ | |
252b5132 RH |
1345 | }; |
1346 | EOF |