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Commit | Line | Data |
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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" | |
f1f0d9ab TR |
56 | #include "libcoff.h" |
57 | #include "libxcoff.h" | |
3b1b01cf | 58 | |
252b5132 RH |
59 | static void gld${EMULATION_NAME}_before_parse PARAMS ((void)); |
60 | static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **)); | |
61 | static void gld${EMULATION_NAME}_after_open PARAMS ((void)); | |
f1f0d9ab | 62 | static char *gld${EMULATION_NAME}_choose_target PARAMS ((int, char **)); |
252b5132 RH |
63 | static void gld${EMULATION_NAME}_before_allocation PARAMS ((void)); |
64 | static void gld${EMULATION_NAME}_read_file PARAMS ((const char *, boolean)); | |
65 | static void gld${EMULATION_NAME}_free PARAMS ((PTR)); | |
249172c3 TR |
66 | static void gld${EMULATION_NAME}_find_relocs |
67 | PARAMS ((lang_statement_union_type *)); | |
252b5132 RH |
68 | static void gld${EMULATION_NAME}_find_exp_assignment PARAMS ((etree_type *)); |
69 | static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile)); | |
48f6162b AJ |
70 | static boolean gld${EMULATION_NAME}_unrecognized_file |
71 | PARAMS ((lang_input_statement_type *)); | |
9a4c7f16 | 72 | static void gld${EMULATION_NAME}_create_output_section_statements |
f1f0d9ab TR |
73 | PARAMS ((void)); |
74 | static void gld${EMULATION_NAME}_set_output_arch PARAMS ((void)); | |
75 | ||
249172c3 TR |
76 | static int is_syscall PARAMS ((char *, unsigned int *)); |
77 | static int change_symbol_mode PARAMS ((char *)); | |
252b5132 RH |
78 | |
79 | /* The file alignment required for each section. */ | |
80 | static unsigned long file_align; | |
81 | ||
82 | /* The maximum size the stack is permitted to grow. This is stored in | |
83 | the a.out header. */ | |
84 | static unsigned long maxstack; | |
85 | ||
86 | /* The maximum data size. This is stored in the a.out header. */ | |
87 | static unsigned long maxdata; | |
88 | ||
89 | /* Whether to perform garbage collection. */ | |
90 | static int gc = 1; | |
91 | ||
92 | /* The module type to use. */ | |
93 | static unsigned short modtype = ('1' << 8) | 'L'; | |
94 | ||
95 | /* Whether the .text section must be read-only (i.e., no relocs | |
96 | permitted). */ | |
97 | static int textro; | |
98 | ||
99 | /* Whether to implement Unix like linker semantics. */ | |
100 | static int unix_ld; | |
101 | ||
102 | /* Structure used to hold import file list. */ | |
103 | ||
104 | struct filelist | |
105 | { | |
106 | struct filelist *next; | |
107 | const char *name; | |
108 | }; | |
109 | ||
110 | /* List of import files. */ | |
111 | static struct filelist *import_files; | |
112 | ||
113 | /* List of export symbols read from the export files. */ | |
114 | ||
115 | struct export_symbol_list | |
116 | { | |
117 | struct export_symbol_list *next; | |
118 | const char *name; | |
252b5132 RH |
119 | }; |
120 | ||
121 | static struct export_symbol_list *export_symbols; | |
122 | ||
3b1b01cf TR |
123 | /* Maintains the 32 or 64 bit mode state of import file */ |
124 | static unsigned int symbol_mode = 0x04; | |
125 | ||
742aeb63 TR |
126 | /* Which symbol modes are valid */ |
127 | static unsigned int symbol_mode_mask = 0x0d; | |
128 | ||
129 | /* Whether this is a 64 bit link */ | |
130 | static int is_64bit = 0; | |
131 | ||
132 | /* Which syscalls from import file are valid */ | |
133 | static unsigned int syscall_mask = 0x77; | |
134 | ||
9a4c7f16 TR |
135 | /* fake file for -binitfini support */ |
136 | static lang_input_statement_type *initfini_file; | |
69f284c7 | 137 | |
ca10c62d TR |
138 | /* Whether to do run time linking |
139 | -brtl enables, -bnortl and -bnortllib disable. */ | |
f1f0d9ab | 140 | static int rtld; |
69f284c7 | 141 | |
aa67bccf TR |
142 | /* Explicit command line library path, -blibpath */ |
143 | static char *command_line_blibpath = NULL; | |
144 | ||
252b5132 RH |
145 | /* This routine is called before anything else is done. */ |
146 | ||
147 | static void | |
fab80407 | 148 | gld${EMULATION_NAME}_before_parse () |
252b5132 | 149 | { |
f1f0d9ab | 150 | |
252b5132 | 151 | config.has_shared = true; |
3b1b01cf | 152 | |
9a4c7f16 TR |
153 | /* The link_info.[init|fini]_functions are initialized in ld/lexsup.c. |
154 | Override them here so we can use the link_info.init_function as a | |
155 | state flag that lets the backend know that -binitfini has been done. */ | |
156 | ||
3b1b01cf TR |
157 | link_info.init_function = NULL; |
158 | link_info.fini_function = NULL; | |
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, | |
aa67bccf TR |
197 | OPTION_LIBPATH, |
198 | OPTION_NOLIBPATH, | |
3b1b01cf TR |
199 | }; |
200 | ||
9a4c7f16 TR |
201 | /* -binitfini has special handling in the linker backend. The native linker |
202 | uses the arguemnts to generate a table of init and fini functions for | |
203 | the executable. The important use for this option is to support aix 4.2+ | |
204 | c++ constructors and destructors. This is tied into gcc via collect2.c. | |
205 | ||
206 | The function table is accessed by the runtime linker/loader by checking if | |
207 | the first symbol in the loader symbol table is __rtinit. The gnu linker | |
208 | generates this symbol and makes it the first loader symbol. */ | |
3b1b01cf TR |
209 | |
210 | static const struct option longopts[] = { | |
252b5132 RH |
211 | {"basis", no_argument, NULL, OPTION_IGNORE}, |
212 | {"bautoimp", no_argument, NULL, OPTION_AUTOIMP}, | |
213 | {"bcomprld", no_argument, NULL, OPTION_IGNORE}, | |
214 | {"bcrld", no_argument, NULL, OPTION_IGNORE}, | |
215 | {"bcror31", no_argument, NULL, OPTION_IGNORE}, | |
216 | {"bD", required_argument, NULL, OPTION_MAXDATA}, | |
217 | {"bE", required_argument, NULL, OPTION_EXPORT}, | |
218 | {"bernotok", no_argument, NULL, OPTION_ERNOTOK}, | |
219 | {"berok", no_argument, NULL, OPTION_EROK}, | |
220 | {"berrmsg", no_argument, NULL, OPTION_IGNORE}, | |
221 | {"bexport", required_argument, NULL, OPTION_EXPORT}, | |
222 | {"bf", no_argument, NULL, OPTION_ERNOTOK}, | |
223 | {"bgc", no_argument, &gc, 1}, | |
224 | {"bh", required_argument, NULL, OPTION_IGNORE}, | |
225 | {"bhalt", required_argument, NULL, OPTION_IGNORE}, | |
226 | {"bI", required_argument, NULL, OPTION_IMPORT}, | |
227 | {"bimport", required_argument, NULL, OPTION_IMPORT}, | |
3b1b01cf | 228 | {"binitfini", required_argument, NULL, OPTION_INITFINI}, |
252b5132 RH |
229 | {"bl", required_argument, NULL, OPTION_LOADMAP}, |
230 | {"bloadmap", required_argument, NULL, OPTION_LOADMAP}, | |
231 | {"bmaxdata", required_argument, NULL, OPTION_MAXDATA}, | |
232 | {"bmaxstack", required_argument, NULL, OPTION_MAXSTACK}, | |
233 | {"bM", required_argument, NULL, OPTION_MODTYPE}, | |
234 | {"bmodtype", required_argument, NULL, OPTION_MODTYPE}, | |
235 | {"bnoautoimp", no_argument, NULL, OPTION_NOAUTOIMP}, | |
236 | {"bnodelcsect", no_argument, NULL, OPTION_IGNORE}, | |
237 | {"bnoentry", no_argument, NULL, OPTION_IGNORE}, | |
238 | {"bnogc", no_argument, &gc, 0}, | |
239 | {"bnso", no_argument, NULL, OPTION_NOAUTOIMP}, | |
240 | {"bnostrcmpct", no_argument, NULL, OPTION_NOSTRCMPCT}, | |
241 | {"bnotextro", no_argument, &textro, 0}, | |
242 | {"bnro", no_argument, &textro, 0}, | |
243 | {"bpD", required_argument, NULL, OPTION_PD}, | |
244 | {"bpT", required_argument, NULL, OPTION_PT}, | |
245 | {"bro", no_argument, &textro, 1}, | |
69f284c7 | 246 | {"brtl", no_argument, &rtld, 1}, |
ca10c62d TR |
247 | {"bnortl", no_argument, &rtld, 0}, |
248 | {"bnortllib", no_argument, &rtld, 0}, | |
252b5132 RH |
249 | {"bS", required_argument, NULL, OPTION_MAXSTACK}, |
250 | {"bso", no_argument, NULL, OPTION_AUTOIMP}, | |
251 | {"bstrcmpct", no_argument, NULL, OPTION_STRCMPCT}, | |
252 | {"btextro", no_argument, &textro, 1}, | |
742aeb63 TR |
253 | {"b32", no_argument, NULL, OPTION_32}, |
254 | {"b64", no_argument, NULL, OPTION_64}, | |
252b5132 RH |
255 | {"static", no_argument, NULL, OPTION_NOAUTOIMP}, |
256 | {"unix", no_argument, NULL, OPTION_UNIX}, | |
aa67bccf TR |
257 | {"blibpath", required_argument, NULL, OPTION_LIBPATH}, |
258 | {"bnolibpath", required_argument, NULL, OPTION_NOLIBPATH}, | |
252b5132 RH |
259 | {NULL, no_argument, NULL, 0} |
260 | }; | |
261 | ||
262 | /* Options supported by the AIX linker which we do not support: -f, | |
263 | -S, -v, -Z, -bbindcmds, -bbinder, -bbindopts, -bcalls, -bcaps, | |
264 | -bcror15, -bdebugopt, -bdbg, -bdelcsect, -bex?, -bfilelist, -bfl, | |
265 | -bgcbypass, -bglink, -binsert, -bi, -bloadmap, -bl, -bmap, -bnl, | |
266 | -bnobind, -bnocomprld, -bnocrld, -bnoerrmsg, -bnoglink, | |
267 | -bnoloadmap, -bnl, -bnoobjreorder, -bnoquiet, -bnoreorder, | |
268 | -bnotypchk, -bnox, -bquiet, -bR, -brename, -breorder, -btypchk, | |
269 | -bx, -bX, -bxref. */ | |
270 | ||
271 | /* If the current option starts with -b, change the first : to an =. | |
272 | The AIX linker uses : to separate the option from the argument; | |
273 | changing it to = lets us treat it as a getopt option. */ | |
274 | indx = optind; | |
fab80407 | 275 | if (indx == 0) |
249172c3 | 276 | indx = 1; |
fab80407 AM |
277 | |
278 | if (indx < argc && strncmp (argv[indx], "-b", 2) == 0) | |
279 | { | |
280 | char *s; | |
281 | ||
282 | for (s = argv[indx]; *s != '\0'; s++) | |
283 | { | |
284 | if (*s == ':') | |
285 | { | |
286 | *s = '='; | |
287 | break; | |
288 | } | |
289 | } | |
252b5132 | 290 | } |
3b1b01cf | 291 | |
252b5132 RH |
292 | |
293 | /* We add s and u so to the short options list so that -s and -u on | |
294 | the command line do not match -static and -unix. */ | |
295 | ||
296 | opterr = 0; | |
297 | optc = getopt_long_only (argc, argv, "-D:H:KT:zsu", longopts, &longind); | |
298 | opterr = prevopterr; | |
299 | ||
300 | switch (optc) | |
301 | { | |
302 | case 's': | |
303 | case 'u': | |
304 | default: | |
305 | optind = prevoptind; | |
306 | return 0; | |
307 | ||
308 | case 0: | |
309 | /* Long option which just sets a flag. */ | |
310 | break; | |
311 | ||
312 | case 'D': | |
3b1b01cf | 313 | val = strtoll (optarg, &end, 0); |
252b5132 RH |
314 | if (*end != '\0') |
315 | einfo ("%P: warning: ignoring invalid -D number %s\n", optarg); | |
316 | else if (val != -1) | |
317 | lang_section_start (".data", exp_intop (val)); | |
318 | break; | |
319 | ||
320 | case 'H': | |
321 | val = strtoul (optarg, &end, 0); | |
249172c3 | 322 | if (*end != '\0' || (val & (val - 1)) != 0) |
252b5132 RH |
323 | einfo ("%P: warning: ignoring invalid -H number %s\n", optarg); |
324 | else | |
325 | file_align = val; | |
326 | break; | |
327 | ||
328 | case 'K': | |
329 | case 'z': | |
330 | /* FIXME: This should use the page size for the target system. */ | |
331 | file_align = 4096; | |
332 | break; | |
333 | ||
334 | case 'T': | |
335 | /* On AIX this is the same as GNU ld -Ttext. When we see -T | |
336 | number, we assume the AIX option is intended. Otherwise, we | |
337 | assume the usual GNU ld -T option is intended. We can't just | |
338 | ignore the AIX option, because gcc passes it to the linker. */ | |
3b1b01cf | 339 | val = strtoull (optarg, &end, 0); |
252b5132 RH |
340 | if (*end != '\0') |
341 | { | |
342 | optind = prevoptind; | |
343 | return 0; | |
344 | } | |
345 | lang_section_start (".text", exp_intop (val)); | |
346 | break; | |
347 | ||
348 | case OPTION_IGNORE: | |
349 | break; | |
350 | ||
fab80407 AM |
351 | case OPTION_INITFINI: |
352 | { | |
353 | /* | |
354 | * The aix linker init fini has the format : | |
355 | * | |
356 | * -binitfini:[ Initial][:Termination][:Priority] | |
357 | * | |
358 | * it allows the Termination and Priority to be optional. | |
359 | * | |
360 | * Since we support only one init/fini pair, we ignore the Priority. | |
361 | * | |
362 | * Define the special symbol __rtinit. | |
363 | * | |
364 | * strtok does not correctly handle the case of -binitfini::fini: so | |
365 | * do it by hand | |
366 | */ | |
367 | char *t, *i, *f; | |
368 | ||
369 | i = t = optarg; | |
370 | while (*t && ':' != *t) | |
371 | t++; | |
372 | if (*t) | |
373 | *t++ = 0; | |
374 | ||
375 | if (0 != strlen (i)) | |
249172c3 | 376 | link_info.init_function = i; |
3b1b01cf | 377 | |
fab80407 AM |
378 | f = t; |
379 | while (*t && ':' != *t) | |
380 | t++; | |
381 | *t = 0; | |
3b1b01cf | 382 | |
fab80407 | 383 | if (0 != strlen (f)) |
249172c3 | 384 | link_info.fini_function = f; |
3b1b01cf | 385 | } |
249172c3 TR |
386 | break; |
387 | ||
252b5132 RH |
388 | case OPTION_AUTOIMP: |
389 | link_info.static_link = false; | |
390 | break; | |
391 | ||
392 | case OPTION_ERNOTOK: | |
393 | force_make_executable = false; | |
394 | break; | |
395 | ||
396 | case OPTION_EROK: | |
397 | force_make_executable = true; | |
398 | break; | |
399 | ||
400 | case OPTION_EXPORT: | |
401 | gld${EMULATION_NAME}_read_file (optarg, false); | |
402 | break; | |
403 | ||
404 | case OPTION_IMPORT: | |
405 | { | |
406 | struct filelist *n; | |
407 | struct filelist **flpp; | |
408 | ||
409 | n = (struct filelist *) xmalloc (sizeof (struct filelist)); | |
410 | n->next = NULL; | |
411 | n->name = optarg; | |
412 | flpp = &import_files; | |
413 | while (*flpp != NULL) | |
414 | flpp = &(*flpp)->next; | |
415 | *flpp = n; | |
416 | } | |
417 | break; | |
418 | ||
419 | case OPTION_LOADMAP: | |
420 | config.map_filename = optarg; | |
421 | break; | |
422 | ||
423 | case OPTION_MAXDATA: | |
3b1b01cf | 424 | val = strtoull (optarg, &end, 0); |
252b5132 | 425 | if (*end != '\0') |
fab80407 | 426 | einfo ("%P: warning: ignoring invalid -bmaxdata number %s\n", optarg); |
252b5132 RH |
427 | else |
428 | maxdata = val; | |
429 | break; | |
430 | ||
431 | case OPTION_MAXSTACK: | |
3b1b01cf | 432 | val = strtoull (optarg, &end, 0); |
252b5132 | 433 | if (*end != '\0') |
249172c3 TR |
434 | einfo ("%P: warning: ignoring invalid -bmaxstack number %s\n", |
435 | optarg); | |
252b5132 RH |
436 | else |
437 | maxstack = val; | |
438 | break; | |
439 | ||
440 | case OPTION_MODTYPE: | |
441 | if (*optarg == 'S') | |
442 | { | |
443 | link_info.shared = true; | |
444 | ++optarg; | |
445 | } | |
446 | if (*optarg == '\0' || optarg[1] == '\0') | |
447 | einfo ("%P: warning: ignoring invalid module type %s\n", optarg); | |
448 | else | |
449 | modtype = (*optarg << 8) | optarg[1]; | |
450 | break; | |
451 | ||
452 | case OPTION_NOAUTOIMP: | |
453 | link_info.static_link = true; | |
454 | break; | |
455 | ||
456 | case OPTION_NOSTRCMPCT: | |
457 | link_info.traditional_format = true; | |
458 | break; | |
459 | ||
460 | case OPTION_PD: | |
461 | /* This sets the page that the .data section is supposed to | |
462 | start on. The offset within the page should still be the | |
463 | offset within the file, so we need to build an appropriate | |
464 | expression. */ | |
3b1b01cf | 465 | val = strtoull (optarg, &end, 0); |
252b5132 RH |
466 | if (*end != '\0') |
467 | einfo ("%P: warning: ignoring invalid -pD number %s\n", optarg); | |
468 | else | |
469 | { | |
470 | etree_type *t; | |
471 | ||
472 | t = exp_binop ('+', | |
473 | exp_intop (val), | |
474 | exp_binop ('&', | |
475 | exp_nameop (NAME, "."), | |
476 | exp_intop (0xfff))); | |
477 | t = exp_binop ('&', | |
478 | exp_binop ('+', t, exp_intop (31)), | |
249172c3 | 479 | exp_intop (~(bfd_vma) 31)); |
252b5132 RH |
480 | lang_section_start (".data", t); |
481 | } | |
482 | break; | |
483 | ||
484 | case OPTION_PT: | |
485 | /* This set the page that the .text section is supposed to start | |
486 | on. The offset within the page should still be the offset | |
487 | within the file. */ | |
3b1b01cf | 488 | val = strtoull (optarg, &end, 0); |
252b5132 RH |
489 | if (*end != '\0') |
490 | einfo ("%P: warning: ignoring invalid -pT number %s\n", optarg); | |
491 | else | |
492 | { | |
493 | etree_type *t; | |
494 | ||
495 | t = exp_binop ('+', | |
496 | exp_intop (val), | |
497 | exp_nameop (SIZEOF_HEADERS, NULL)); | |
498 | t = exp_binop ('&', | |
499 | exp_binop ('+', t, exp_intop (31)), | |
249172c3 | 500 | exp_intop (~(bfd_vma) 31)); |
252b5132 RH |
501 | lang_section_start (".text", t); |
502 | } | |
503 | break; | |
504 | ||
505 | case OPTION_STRCMPCT: | |
506 | link_info.traditional_format = false; | |
507 | break; | |
508 | ||
509 | case OPTION_UNIX: | |
510 | unix_ld = true; | |
511 | break; | |
742aeb63 TR |
512 | |
513 | case OPTION_32: | |
514 | is_64bit = 0; | |
515 | syscall_mask = 0x77; | |
516 | symbol_mode_mask = 0x0d; | |
517 | break; | |
518 | ||
519 | case OPTION_64: | |
520 | is_64bit = 1; | |
521 | syscall_mask = 0xcc; | |
522 | symbol_mode_mask = 0x0e; | |
523 | break; | |
524 | ||
aa67bccf | 525 | case OPTION_LIBPATH: |
cc7e59b2 | 526 | command_line_blibpath = optarg; |
aa67bccf TR |
527 | break; |
528 | ||
529 | case OPTION_NOLIBPATH: | |
cc7e59b2 | 530 | command_line_blibpath = NULL; |
aa67bccf TR |
531 | break; |
532 | ||
252b5132 RH |
533 | } |
534 | ||
535 | return 1; | |
536 | } | |
537 | ||
538 | /* This is called when an input file can not be recognized as a BFD | |
539 | object or an archive. If the file starts with #!, we must treat it | |
540 | as an import file. This is for AIX compatibility. */ | |
541 | ||
542 | static boolean | |
543 | gld${EMULATION_NAME}_unrecognized_file (entry) | |
544 | lang_input_statement_type *entry; | |
545 | { | |
546 | FILE *e; | |
547 | boolean ret; | |
548 | ||
549 | e = fopen (entry->filename, FOPEN_RT); | |
550 | if (e == NULL) | |
551 | return false; | |
552 | ||
553 | ret = false; | |
554 | ||
555 | if (getc (e) == '#' && getc (e) == '!') | |
556 | { | |
557 | struct filelist *n; | |
558 | struct filelist **flpp; | |
559 | ||
560 | n = (struct filelist *) xmalloc (sizeof (struct filelist)); | |
561 | n->next = NULL; | |
562 | n->name = entry->filename; | |
563 | flpp = &import_files; | |
564 | while (*flpp != NULL) | |
565 | flpp = &(*flpp)->next; | |
566 | *flpp = n; | |
567 | ||
568 | ret = true; | |
569 | entry->loaded = true; | |
570 | } | |
571 | ||
572 | fclose (e); | |
573 | ||
574 | return ret; | |
575 | } | |
576 | ||
577 | /* This is called after the input files have been opened. */ | |
578 | ||
579 | static void | |
580 | gld${EMULATION_NAME}_after_open () | |
581 | { | |
582 | boolean r; | |
583 | struct set_info *p; | |
584 | ||
585 | /* Call ldctor_build_sets, after pretending that this is a | |
586 | relocateable link. We do this because AIX requires relocation | |
587 | entries for all references to symbols, even in a final | |
588 | executable. Of course, we only want to do this if we are | |
589 | producing an XCOFF output file. */ | |
590 | r = link_info.relocateable; | |
591 | if (strstr (bfd_get_target (output_bfd), "xcoff") != NULL) | |
592 | link_info.relocateable = true; | |
593 | ldctor_build_sets (); | |
594 | link_info.relocateable = r; | |
595 | ||
596 | /* For each set, record the size, so that the XCOFF backend can | |
597 | output the correct csect length. */ | |
598 | for (p = sets; p != (struct set_info *) NULL; p = p->next) | |
599 | { | |
600 | bfd_size_type size; | |
601 | ||
602 | /* If the symbol is defined, we may have been invoked from | |
249172c3 TR |
603 | collect, and the sets may already have been built, so we do |
604 | not do anything. */ | |
252b5132 RH |
605 | if (p->h->type == bfd_link_hash_defined |
606 | || p->h->type == bfd_link_hash_defweak) | |
607 | continue; | |
608 | ||
609 | if (p->reloc != BFD_RELOC_CTOR) | |
610 | { | |
611 | /* Handle this if we need to. */ | |
612 | abort (); | |
613 | } | |
614 | ||
615 | size = (p->count + 2) * 4; | |
249172c3 | 616 | if (!bfd_xcoff_link_record_set (output_bfd, &link_info, p->h, size)) |
252b5132 RH |
617 | einfo ("%F%P: bfd_xcoff_link_record_set failed: %E\n"); |
618 | } | |
619 | } | |
620 | ||
621 | /* This is called after the sections have been attached to output | |
622 | sections, but before any sizes or addresses have been set. */ | |
623 | ||
624 | static void | |
625 | gld${EMULATION_NAME}_before_allocation () | |
626 | { | |
627 | struct filelist *fl; | |
628 | struct export_symbol_list *el; | |
629 | char *libpath; | |
3b1b01cf | 630 | asection *special_sections[XCOFF_NUMBER_OF_SPECIAL_SECTIONS]; |
252b5132 RH |
631 | int i; |
632 | ||
633 | /* Handle the import and export files, if any. */ | |
634 | for (fl = import_files; fl != NULL; fl = fl->next) | |
635 | gld${EMULATION_NAME}_read_file (fl->name, true); | |
fab80407 AM |
636 | for (el = export_symbols; el != NULL; el = el->next) |
637 | { | |
638 | struct bfd_link_hash_entry *h; | |
639 | ||
640 | h = bfd_link_hash_lookup (link_info.hash, el->name, false, false, false); | |
641 | if (h == NULL) | |
642 | einfo ("%P%F: bfd_link_hash_lookup of export symbol failed: %E\n"); | |
249172c3 | 643 | if (!bfd_xcoff_export_symbol (output_bfd, &link_info, h)) |
fab80407 AM |
644 | einfo ("%P%F: bfd_xcoff_export_symbol failed: %E\n"); |
645 | } | |
252b5132 RH |
646 | |
647 | /* Track down all relocations called for by the linker script (these | |
648 | are typically constructor/destructor entries created by | |
649 | CONSTRUCTORS) and let the backend know it will need to create | |
650 | .loader relocs for them. */ | |
651 | lang_for_each_statement (gld${EMULATION_NAME}_find_relocs); | |
652 | ||
aa67bccf TR |
653 | /* Precedence of LIBPATH |
654 | -blibpath: native support always first | |
655 | -rpath: gnu extension | |
656 | -L build from command line -L's */ | |
657 | if (command_line_blibpath != NULL) | |
658 | libpath = command_line_blibpath; | |
659 | else if (command_line.rpath != NULL) | |
252b5132 RH |
660 | libpath = command_line.rpath; |
661 | else if (search_head == NULL) | |
662 | libpath = (char *) ""; | |
663 | else | |
664 | { | |
665 | size_t len; | |
666 | search_dirs_type *search; | |
667 | ||
668 | len = strlen (search_head->name); | |
669 | libpath = xmalloc (len + 1); | |
670 | strcpy (libpath, search_head->name); | |
671 | for (search = search_head->next; search != NULL; search = search->next) | |
672 | { | |
673 | size_t nlen; | |
674 | ||
675 | nlen = strlen (search->name); | |
676 | libpath = xrealloc (libpath, len + nlen + 2); | |
677 | libpath[len] = ':'; | |
678 | strcpy (libpath + len + 1, search->name); | |
679 | len += nlen + 1; | |
680 | } | |
681 | } | |
682 | ||
683 | /* Let the XCOFF backend set up the .loader section. */ | |
69f284c7 TR |
684 | if (!bfd_xcoff_size_dynamic_sections |
685 | (output_bfd, &link_info, libpath, entry_symbol, file_align, | |
686 | maxstack, maxdata, gc && !unix_ld ? true : false, | |
f1f0d9ab TR |
687 | modtype, textro ? true : false, unix_ld, special_sections, |
688 | rtld ? true : false)) | |
252b5132 RH |
689 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); |
690 | ||
691 | /* Look through the special sections, and put them in the right | |
692 | place in the link ordering. This is especially magic. */ | |
fab80407 AM |
693 | for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++) |
694 | { | |
695 | asection *sec; | |
696 | lang_output_section_statement_type *os; | |
697 | lang_statement_union_type **pls; | |
698 | lang_input_section_type *is; | |
699 | const char *oname; | |
700 | boolean start; | |
701 | ||
702 | sec = special_sections[i]; | |
703 | if (sec == NULL) | |
704 | continue; | |
3b1b01cf | 705 | |
fab80407 | 706 | /* Remove this section from the list of the output section. |
249172c3 | 707 | This assumes we know what the script looks like. */ |
fab80407 AM |
708 | is = NULL; |
709 | os = lang_output_section_find (sec->output_section->name); | |
249172c3 | 710 | if (os == NULL) |
fab80407 AM |
711 | einfo ("%P%F: can't find output section %s\n", |
712 | sec->output_section->name); | |
fab80407 AM |
713 | |
714 | for (pls = &os->children.head; *pls != NULL; pls = &(*pls)->header.next) | |
715 | { | |
249172c3 TR |
716 | if ((*pls)->header.type == lang_input_section_enum |
717 | && (*pls)->input_section.section == sec) | |
fab80407 | 718 | { |
249172c3 | 719 | is = (lang_input_section_type *) * pls; |
fab80407 | 720 | *pls = (*pls)->header.next; |
252b5132 | 721 | break; |
fab80407 AM |
722 | } |
723 | ||
724 | if ((*pls)->header.type == lang_wild_statement_enum) | |
725 | { | |
726 | lang_statement_union_type **pwls; | |
727 | ||
728 | for (pwls = &(*pls)->wild_statement.children.head; | |
249172c3 | 729 | *pwls != NULL; pwls = &(*pwls)->header.next) |
fab80407 AM |
730 | { |
731 | ||
249172c3 TR |
732 | if ((*pwls)->header.type == lang_input_section_enum |
733 | && (*pwls)->input_section.section == sec) | |
fab80407 | 734 | { |
249172c3 | 735 | is = (lang_input_section_type *) * pwls; |
fab80407 AM |
736 | *pwls = (*pwls)->header.next; |
737 | break; | |
738 | } | |
739 | } | |
740 | ||
741 | if (is != NULL) | |
742 | break; | |
743 | } | |
744 | } | |
745 | ||
746 | if (is == NULL) | |
747 | { | |
748 | einfo ("%P%F: can't find %s in output section\n", | |
749 | bfd_get_section_name (sec->owner, sec)); | |
3b1b01cf | 750 | } |
fab80407 AM |
751 | |
752 | /* Now figure out where the section should go. */ | |
753 | switch (i) | |
754 | { | |
755 | ||
249172c3 | 756 | default: /* to avoid warnings */ |
fab80407 AM |
757 | case XCOFF_SPECIAL_SECTION_TEXT: |
758 | /* _text */ | |
759 | oname = ".text"; | |
760 | start = true; | |
3b1b01cf | 761 | break; |
252b5132 | 762 | |
fab80407 AM |
763 | case XCOFF_SPECIAL_SECTION_ETEXT: |
764 | /* _etext */ | |
765 | oname = ".text"; | |
766 | start = false; | |
767 | break; | |
252b5132 | 768 | |
fab80407 AM |
769 | case XCOFF_SPECIAL_SECTION_DATA: |
770 | /* _data */ | |
771 | oname = ".data"; | |
772 | start = true; | |
773 | break; | |
252b5132 | 774 | |
fab80407 AM |
775 | case XCOFF_SPECIAL_SECTION_EDATA: |
776 | /* _edata */ | |
777 | oname = ".data"; | |
778 | start = false; | |
779 | break; | |
780 | ||
781 | case XCOFF_SPECIAL_SECTION_END: | |
782 | case XCOFF_SPECIAL_SECTION_END2: | |
783 | /* _end and end */ | |
784 | oname = ".bss"; | |
785 | start = false; | |
786 | break; | |
787 | } | |
252b5132 | 788 | |
fab80407 | 789 | os = lang_output_section_find (oname); |
252b5132 | 790 | |
fab80407 AM |
791 | if (start) |
792 | { | |
793 | is->header.next = os->children.head; | |
794 | os->children.head = (lang_statement_union_type *) is; | |
795 | } | |
796 | else | |
797 | { | |
798 | is->header.next = NULL; | |
799 | lang_statement_append (&os->children, | |
800 | (lang_statement_union_type *) is, | |
801 | &is->header.next); | |
802 | } | |
3b1b01cf | 803 | } |
3b1b01cf TR |
804 | } |
805 | ||
742aeb63 | 806 | static char * |
f1f0d9ab | 807 | gld${EMULATION_NAME}_choose_target (argc, argv) |
742aeb63 TR |
808 | int argc; |
809 | char **argv; | |
810 | { | |
811 | int i, j, jmax; | |
812 | static char *from_outside; | |
813 | static char *from_inside; | |
249172c3 TR |
814 | static char *argv_to_target[][2] = { |
815 | {NULL, "${OUTPUT_FORMAT}"}, | |
eb1e0e80 NC |
816 | {"-b32", "${OUTPUT_FORMAT_32BIT}"}, |
817 | {"-b64", "${OUTPUT_FORMAT_64BIT}"}, | |
249172c3 | 818 | }; |
742aeb63 TR |
819 | |
820 | jmax = 3; | |
821 | ||
822 | from_outside = getenv (TARGET_ENVIRON); | |
249172c3 | 823 | if (from_outside != (char *) NULL) |
742aeb63 TR |
824 | return from_outside; |
825 | ||
826 | /* Set to default. */ | |
827 | from_inside = argv_to_target[0][1]; | |
828 | for (i = 1; i < argc; i++) | |
829 | { | |
830 | for (j = 1; j < jmax; j++) | |
831 | { | |
832 | if (0 == strcmp (argv[i], argv_to_target[j][0])) | |
833 | from_inside = argv_to_target[j][1]; | |
834 | } | |
835 | } | |
249172c3 | 836 | |
742aeb63 TR |
837 | return from_inside; |
838 | } | |
839 | ||
249172c3 TR |
840 | /* Returns |
841 | 1 : state changed | |
842 | 0 : no change */ | |
843 | static int | |
844 | change_symbol_mode (input) | |
845 | char *input; | |
3b1b01cf | 846 | { |
3b1b01cf | 847 | char *symbol_mode_string[] = { |
249172c3 TR |
848 | "# 32", /* 0x01 */ |
849 | "# 64", /* 0x02 */ | |
850 | "# no32", /* 0x04 */ | |
851 | "# no64", /* 0x08 */ | |
3b1b01cf TR |
852 | NULL, |
853 | }; | |
249172c3 | 854 | |
3b1b01cf TR |
855 | unsigned int bit; |
856 | char *string; | |
857 | ||
249172c3 | 858 | for (bit = 0;; bit++) |
fab80407 AM |
859 | { |
860 | string = symbol_mode_string[bit]; | |
249172c3 | 861 | if (string == NULL) |
fab80407 AM |
862 | return 0; |
863 | ||
864 | if (0 == strcmp (input, string)) | |
865 | { | |
866 | symbol_mode = (1 << bit); | |
867 | return 1; | |
868 | } | |
3b1b01cf | 869 | } |
3b1b01cf TR |
870 | /* should not be here */ |
871 | return 0; | |
872 | } | |
873 | ||
249172c3 TR |
874 | /* Returns |
875 | 1 : yes | |
876 | 0 : ignore | |
877 | -1 : error, try something else */ | |
878 | static int | |
879 | is_syscall (input, flag) | |
880 | char *input; | |
881 | unsigned int *flag; | |
3b1b01cf | 882 | { |
3b1b01cf TR |
883 | unsigned int bit; |
884 | char *string; | |
1fdf0249 TR |
885 | |
886 | struct sc { | |
887 | char *syscall_string; | |
888 | unsigned int flag; | |
889 | } s [] = { | |
890 | { "svc" /* 0x01 */, XCOFF_SYSCALL32 }, | |
891 | { "svc32" /* 0x02 */, XCOFF_SYSCALL32 }, | |
892 | { "svc3264" /* 0x04 */, XCOFF_SYSCALL32 | XCOFF_SYSCALL64 }, | |
893 | { "svc64" /* 0x08 */, XCOFF_SYSCALL64 }, | |
894 | { "syscall" /* 0x10 */, XCOFF_SYSCALL32 }, | |
895 | { "syscall32" /* 0x20 */, XCOFF_SYSCALL32 }, | |
896 | { "syscall3264" /* 0x40 */, XCOFF_SYSCALL32 | XCOFF_SYSCALL64 }, | |
897 | { "syscall64" /* 0x80 */, XCOFF_SYSCALL64 }, | |
898 | { NULL, 0 }, | |
3b1b01cf TR |
899 | }; |
900 | ||
1fdf0249 | 901 | *flag = 0; |
3b1b01cf | 902 | |
249172c3 TR |
903 | for (bit = 0;; bit++) |
904 | { | |
905 | string = s[bit].syscall_string; | |
906 | if (string == NULL) | |
907 | return -1; | |
fab80407 | 908 | |
249172c3 TR |
909 | if (0 == strcmp (input, string)) |
910 | { | |
911 | if (1 << bit & syscall_mask) | |
912 | { | |
913 | *flag = s[bit].flag; | |
914 | return 1; | |
915 | } | |
916 | else | |
917 | { | |
918 | return 0; | |
919 | } | |
920 | } | |
252b5132 | 921 | } |
3b1b01cf TR |
922 | /* should not be here */ |
923 | return -1; | |
252b5132 RH |
924 | } |
925 | ||
926 | /* Read an import or export file. For an import file, this is called | |
927 | by the before_allocation emulation routine. For an export file, | |
928 | this is called by the parse_args emulation routine. */ | |
929 | ||
930 | static void | |
931 | gld${EMULATION_NAME}_read_file (filename, import) | |
932 | const char *filename; | |
933 | boolean import; | |
934 | { | |
935 | struct obstack *o; | |
936 | FILE *f; | |
937 | int lineno; | |
938 | int c; | |
939 | boolean keep; | |
940 | const char *imppath; | |
941 | const char *impfile; | |
942 | const char *impmember; | |
943 | ||
944 | o = (struct obstack *) xmalloc (sizeof (struct obstack)); | |
945 | obstack_specify_allocation (o, 0, 0, xmalloc, gld${EMULATION_NAME}_free); | |
946 | ||
947 | f = fopen (filename, FOPEN_RT); | |
948 | if (f == NULL) | |
949 | { | |
950 | bfd_set_error (bfd_error_system_call); | |
951 | einfo ("%F%s: %E\n", filename); | |
952 | } | |
953 | ||
954 | keep = false; | |
955 | ||
956 | imppath = NULL; | |
957 | impfile = NULL; | |
958 | impmember = NULL; | |
959 | ||
960 | lineno = 0; | |
3b1b01cf | 961 | |
69f284c7 TR |
962 | /* Default to 32 and 64 bit mode |
963 | symbols at top of /lib/syscalls.exp do not have a mode modifier and they | |
964 | are not repeated, assume 64 bit routines also want to use them. | |
965 | See the routine change_symbol_mode for more information. */ | |
966 | ||
3b1b01cf TR |
967 | symbol_mode = 0x04; |
968 | ||
252b5132 RH |
969 | while ((c = getc (f)) != EOF) |
970 | { | |
971 | char *s; | |
972 | char *symname; | |
1fdf0249 | 973 | unsigned int syscall_flag = 0; |
252b5132 RH |
974 | bfd_vma address; |
975 | struct bfd_link_hash_entry *h; | |
976 | ||
977 | if (c != '\n') | |
978 | { | |
979 | obstack_1grow (o, c); | |
980 | continue; | |
981 | } | |
982 | ||
983 | obstack_1grow (o, '\0'); | |
984 | ++lineno; | |
985 | ||
986 | s = (char *) obstack_base (o); | |
3882b010 | 987 | while (ISSPACE (*s)) |
252b5132 | 988 | ++s; |
fab80407 AM |
989 | if (*s == '\0' |
990 | || *s == '*' | |
991 | || change_symbol_mode (s) | |
992 | || (*s == '#' && s[1] == ' ') | |
249172c3 | 993 | || (!import && *s == '#' && s[1] == '!')) |
252b5132 RH |
994 | { |
995 | obstack_free (o, obstack_base (o)); | |
996 | continue; | |
997 | } | |
998 | ||
999 | if (*s == '#' && s[1] == '!') | |
1000 | { | |
1001 | s += 2; | |
3882b010 | 1002 | while (ISSPACE (*s)) |
252b5132 RH |
1003 | ++s; |
1004 | if (*s == '\0') | |
1005 | { | |
1006 | imppath = NULL; | |
1007 | impfile = NULL; | |
1008 | impmember = NULL; | |
1009 | obstack_free (o, obstack_base (o)); | |
1010 | } | |
1011 | else if (*s == '(') | |
1012 | einfo ("%F%s%d: #! ([member]) is not supported in import files\n", | |
1013 | filename, lineno); | |
1014 | else | |
1015 | { | |
1016 | char cs; | |
1017 | char *file; | |
1018 | ||
1019 | (void) obstack_finish (o); | |
1020 | keep = true; | |
1021 | imppath = s; | |
1022 | file = NULL; | |
249172c3 | 1023 | while (!ISSPACE (*s) && *s != '(' && *s != '\0') |
252b5132 RH |
1024 | { |
1025 | if (*s == '/') | |
1026 | file = s + 1; | |
1027 | ++s; | |
1028 | } | |
1029 | if (file != NULL) | |
1030 | { | |
1031 | file[-1] = '\0'; | |
1032 | impfile = file; | |
1033 | if (imppath == file - 1) | |
1034 | imppath = "/"; | |
1035 | } | |
1036 | else | |
1037 | { | |
1038 | impfile = imppath; | |
1039 | imppath = ""; | |
1040 | } | |
1041 | cs = *s; | |
1042 | *s = '\0'; | |
3882b010 | 1043 | while (ISSPACE (cs)) |
252b5132 RH |
1044 | { |
1045 | ++s; | |
1046 | cs = *s; | |
1047 | } | |
1048 | if (cs != '(') | |
1049 | { | |
1050 | impmember = ""; | |
1051 | if (cs != '\0') | |
1052 | einfo ("%s:%d: warning: syntax error in import file\n", | |
1053 | filename, lineno); | |
1054 | } | |
1055 | else | |
1056 | { | |
1057 | ++s; | |
1058 | impmember = s; | |
1059 | while (*s != ')' && *s != '\0') | |
1060 | ++s; | |
1061 | if (*s == ')') | |
1062 | *s = '\0'; | |
1063 | else | |
1064 | einfo ("%s:%d: warning: syntax error in import file\n", | |
1065 | filename, lineno); | |
1066 | } | |
1067 | } | |
1068 | ||
1069 | continue; | |
1070 | } | |
1071 | ||
742aeb63 | 1072 | if (symbol_mode & symbol_mode_mask) |
fab80407 AM |
1073 | { |
1074 | /* This is a symbol to be imported or exported. */ | |
1075 | symname = s; | |
1fdf0249 | 1076 | syscall_flag = 0; |
fab80407 AM |
1077 | address = (bfd_vma) -1; |
1078 | ||
249172c3 | 1079 | while (!ISSPACE (*s) && *s != '\0') |
fab80407 AM |
1080 | ++s; |
1081 | if (*s != '\0') | |
1082 | { | |
1083 | char *se; | |
3b1b01cf | 1084 | |
fab80407 | 1085 | *s++ = '\0'; |
3b1b01cf | 1086 | |
3882b010 | 1087 | while (ISSPACE (*s)) |
fab80407 AM |
1088 | ++s; |
1089 | ||
1090 | se = s; | |
249172c3 | 1091 | while (!ISSPACE (*se) && *se != '\0') |
fab80407 AM |
1092 | ++se; |
1093 | if (*se != '\0') | |
1094 | { | |
1095 | *se++ = '\0'; | |
3882b010 | 1096 | while (ISSPACE (*se)) |
fab80407 AM |
1097 | ++se; |
1098 | if (*se != '\0') | |
1099 | einfo ("%s%d: warning: syntax error in import/export file\n", | |
1100 | filename, lineno); | |
1101 | } | |
1102 | ||
1103 | if (s != se) | |
1104 | { | |
1105 | int status; | |
1106 | char *end; | |
1107 | ||
249172c3 | 1108 | status = is_syscall (s, &syscall_flag); |
1fdf0249 | 1109 | |
249172c3 TR |
1110 | if (0 > status) |
1111 | { | |
1112 | /* not a system call, check for address */ | |
1113 | address = strtoul (s, &end, 0); | |
1114 | if (*end != '\0') | |
1115 | { | |
1116 | einfo ("%s:%d: warning: syntax error in import/export file\n", | |
1117 | filename, lineno); | |
1118 | ||
1119 | } | |
1120 | } | |
3b1b01cf | 1121 | } |
252b5132 | 1122 | } |
3b1b01cf | 1123 | |
249172c3 | 1124 | if (!import) |
fab80407 AM |
1125 | { |
1126 | struct export_symbol_list *n; | |
1127 | ||
1128 | ldlang_add_undef (symname); | |
1129 | n = ((struct export_symbol_list *) | |
1130 | xmalloc (sizeof (struct export_symbol_list))); | |
1131 | n->next = export_symbols; | |
1132 | n->name = xstrdup (symname); | |
fab80407 AM |
1133 | export_symbols = n; |
1134 | } | |
1135 | else | |
1136 | { | |
1137 | h = bfd_link_hash_lookup (link_info.hash, symname, false, false, | |
1138 | true); | |
1139 | if (h == NULL || h->type == bfd_link_hash_new) | |
1140 | { | |
1141 | /* We can just ignore attempts to import an unreferenced | |
1142 | symbol. */ | |
1143 | } | |
1144 | else | |
1145 | { | |
249172c3 TR |
1146 | if (!bfd_xcoff_import_symbol (output_bfd, &link_info, h, |
1147 | address, imppath, impfile, | |
1148 | impmember, syscall_flag)) | |
fab80407 AM |
1149 | einfo ("%X%s:%d: failed to import symbol %s: %E\n", |
1150 | filename, lineno, symname); | |
1151 | } | |
1152 | } | |
1153 | } | |
252b5132 RH |
1154 | obstack_free (o, obstack_base (o)); |
1155 | } | |
fab80407 | 1156 | |
252b5132 RH |
1157 | if (obstack_object_size (o) > 0) |
1158 | { | |
fab80407 AM |
1159 | einfo ("%s:%d: warning: ignoring unterminated last line\n", |
1160 | filename, lineno); | |
1161 | obstack_free (o, obstack_base (o)); | |
1162 | } | |
252b5132 | 1163 | |
249172c3 | 1164 | if (!keep) |
fab80407 AM |
1165 | { |
1166 | obstack_free (o, NULL); | |
1167 | free (o); | |
252b5132 | 1168 | } |
fab80407 | 1169 | } |
252b5132 RH |
1170 | |
1171 | /* This routine saves us from worrying about declaring free. */ | |
1172 | ||
1173 | static void | |
1174 | gld${EMULATION_NAME}_free (p) | |
1175 | PTR p; | |
1176 | { | |
1177 | free (p); | |
1178 | } | |
1179 | ||
1180 | /* This is called by the before_allocation routine via | |
1181 | lang_for_each_statement. It looks for relocations and assignments | |
1182 | to symbols. */ | |
1183 | ||
1184 | static void | |
1185 | gld${EMULATION_NAME}_find_relocs (s) | |
1186 | lang_statement_union_type *s; | |
1187 | { | |
1188 | if (s->header.type == lang_reloc_statement_enum) | |
1189 | { | |
1190 | lang_reloc_statement_type *rs; | |
1191 | ||
1192 | rs = &s->reloc_statement; | |
1193 | if (rs->name == NULL) | |
1194 | einfo ("%F%P: only relocations against symbols are permitted\n"); | |
249172c3 | 1195 | if (!bfd_xcoff_link_count_reloc (output_bfd, &link_info, rs->name)) |
252b5132 RH |
1196 | einfo ("%F%P: bfd_xcoff_link_count_reloc failed: %E\n"); |
1197 | } | |
1198 | ||
1199 | if (s->header.type == lang_assignment_statement_enum) | |
1200 | gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp); | |
1201 | } | |
1202 | ||
1203 | /* Look through an expression for an assignment statement. */ | |
1204 | ||
1205 | static void | |
1206 | gld${EMULATION_NAME}_find_exp_assignment (exp) | |
1207 | etree_type *exp; | |
1208 | { | |
1209 | struct bfd_link_hash_entry *h; | |
1210 | ||
1211 | switch (exp->type.node_class) | |
1212 | { | |
1213 | case etree_provide: | |
1214 | h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst, | |
1215 | false, false, false); | |
1216 | if (h == NULL) | |
1217 | break; | |
1218 | /* Fall through. */ | |
1219 | case etree_assign: | |
1220 | if (strcmp (exp->assign.dst, ".") != 0) | |
1221 | { | |
249172c3 TR |
1222 | if (!bfd_xcoff_record_link_assignment (output_bfd, &link_info, |
1223 | exp->assign.dst)) | |
252b5132 RH |
1224 | einfo ("%P%F: failed to record assignment to %s: %E\n", |
1225 | exp->assign.dst); | |
1226 | } | |
1227 | gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src); | |
1228 | break; | |
1229 | ||
1230 | case etree_binary: | |
1231 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs); | |
1232 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs); | |
1233 | break; | |
1234 | ||
1235 | case etree_trinary: | |
1236 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond); | |
1237 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs); | |
1238 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs); | |
1239 | break; | |
1240 | ||
1241 | case etree_unary: | |
1242 | gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child); | |
1243 | break; | |
1244 | ||
1245 | default: | |
1246 | break; | |
1247 | } | |
1248 | } | |
1249 | ||
1250 | static char * | |
fab80407 | 1251 | gld${EMULATION_NAME}_get_script (isfile) |
252b5132 RH |
1252 | int *isfile; |
1253 | EOF | |
1254 | ||
1255 | if test -n "$COMPILE_IN" | |
1256 | then | |
1257 | # Scripts compiled in. | |
1258 | ||
1259 | # sed commands to quote an ld script as a C string. | |
5f642101 | 1260 | sc="-f ${srcdir}/emultempl/ostring.sed" |
252b5132 RH |
1261 | |
1262 | cat >>e${EMULATION_NAME}.c <<EOF | |
fab80407 | 1263 | { |
252b5132 RH |
1264 | *isfile = 0; |
1265 | ||
1266 | if (link_info.relocateable == true && config.build_constructors == true) | |
1267 | return | |
1268 | EOF | |
1269 | sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c | |
1270 | echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c | |
1271 | sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c | |
1272 | echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c | |
1273 | sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c | |
1274 | echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c | |
1275 | sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c | |
1276 | echo ' ; else return' >> e${EMULATION_NAME}.c | |
1277 | sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c | |
1278 | echo '; }' >> e${EMULATION_NAME}.c | |
1279 | ||
1280 | else | |
1281 | # Scripts read from the filesystem. | |
1282 | ||
1283 | cat >>e${EMULATION_NAME}.c <<EOF | |
fab80407 | 1284 | { |
252b5132 RH |
1285 | *isfile = 1; |
1286 | ||
1287 | if (link_info.relocateable == true && config.build_constructors == true) | |
1288 | return "ldscripts/${EMULATION_NAME}.xu"; | |
1289 | else if (link_info.relocateable == true) | |
1290 | return "ldscripts/${EMULATION_NAME}.xr"; | |
1291 | else if (!config.text_read_only) | |
1292 | return "ldscripts/${EMULATION_NAME}.xbn"; | |
1293 | else if (!config.magic_demand_paged) | |
1294 | return "ldscripts/${EMULATION_NAME}.xn"; | |
1295 | else | |
1296 | return "ldscripts/${EMULATION_NAME}.x"; | |
1297 | } | |
1298 | EOF | |
1299 | ||
1300 | fi | |
1301 | ||
1302 | cat >>e${EMULATION_NAME}.c <<EOF | |
1303 | ||
9a4c7f16 | 1304 | static void |
f1f0d9ab | 1305 | gld${EMULATION_NAME}_create_output_section_statements () |
9a4c7f16 TR |
1306 | { |
1307 | /* __rtinit */ | |
1308 | if ((bfd_get_flavour (output_bfd) == bfd_target_xcoff_flavour) | |
69f284c7 TR |
1309 | && (link_info.init_function != NULL |
1310 | || link_info.fini_function != NULL | |
1311 | || rtld == true)) | |
9a4c7f16 | 1312 | { |
9a4c7f16 TR |
1313 | initfini_file = lang_add_input_file ("initfini", |
1314 | lang_input_file_is_file_enum, | |
1315 | NULL); | |
1316 | ||
1317 | initfini_file->the_bfd = bfd_create ("initfini", output_bfd); | |
1318 | if (initfini_file->the_bfd == NULL | |
1319 | || ! bfd_set_arch_mach (initfini_file->the_bfd, | |
1320 | bfd_get_arch (output_bfd), | |
1321 | bfd_get_mach (output_bfd))) | |
1322 | { | |
1323 | einfo ("%X%P: can not create BFD %E\n"); | |
1324 | return; | |
1325 | } | |
1326 | ||
1327 | /* Call backend to fill in the rest */ | |
1328 | if (false == bfd_xcoff_link_generate_rtinit (initfini_file->the_bfd, | |
1329 | link_info.init_function, | |
69f284c7 TR |
1330 | link_info.fini_function, |
1331 | rtld)) | |
9a4c7f16 TR |
1332 | { |
1333 | einfo ("%X%P: can not create BFD %E\n"); | |
1334 | return; | |
1335 | } | |
69f284c7 TR |
1336 | |
1337 | /* __rtld defined in /lib/librtl.a */ | |
1338 | if (true == rtld) | |
1339 | lang_add_input_file ("rtl", lang_input_file_is_l_enum, NULL); | |
9a4c7f16 TR |
1340 | } |
1341 | } | |
1342 | ||
f1f0d9ab TR |
1343 | static void |
1344 | gld${EMULATION_NAME}_set_output_arch () | |
1345 | { | |
1346 | bfd_set_arch_mach (output_bfd, | |
1347 | bfd_xcoff_architecture (output_bfd), | |
1348 | bfd_xcoff_machine (output_bfd)); | |
1349 | ||
1350 | ldfile_output_architecture = bfd_get_arch (output_bfd); | |
1351 | ldfile_output_machine = bfd_get_mach (output_bfd); | |
1352 | ldfile_output_machine_name = bfd_printable_name (output_bfd); | |
1353 | } | |
1354 | ||
249172c3 | 1355 | struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = { |
252b5132 RH |
1356 | gld${EMULATION_NAME}_before_parse, |
1357 | syslib_default, | |
1358 | hll_default, | |
1359 | after_parse_default, | |
1360 | gld${EMULATION_NAME}_after_open, | |
1361 | after_allocation_default, | |
f1f0d9ab TR |
1362 | gld${EMULATION_NAME}_set_output_arch, |
1363 | gld${EMULATION_NAME}_choose_target, | |
252b5132 RH |
1364 | gld${EMULATION_NAME}_before_allocation, |
1365 | gld${EMULATION_NAME}_get_script, | |
1366 | "${EMULATION_NAME}", | |
1367 | "${OUTPUT_FORMAT}", | |
249172c3 | 1368 | 0, /* finish */ |
9a4c7f16 | 1369 | gld${EMULATION_NAME}_create_output_section_statements, |
249172c3 TR |
1370 | 0, /* open_dynamic_archive */ |
1371 | 0, /* place_orphan */ | |
1372 | 0, /* set_symbols */ | |
252b5132 | 1373 | gld${EMULATION_NAME}_parse_args, |
40d109bf | 1374 | gld${EMULATION_NAME}_unrecognized_file, |
249172c3 TR |
1375 | NULL, /* list_options */ |
1376 | NULL, /* recognized_file */ | |
1377 | NULL, /* find potential_libraries */ | |
252b5132 RH |
1378 | }; |
1379 | EOF |