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d7f09764 | 1 | /* Wrapper to call lto. Used by collect2 and the linker plugin. |
cbe34bb5 | 2 | Copyright (C) 2009-2017 Free Software Foundation, Inc. |
d7f09764 DN |
3 | |
4 | Factored out of collect2 by Rafael Espindola <espindola@google.com> | |
5 | ||
6 | This file is part of GCC. | |
7 | ||
8 | GCC is free software; you can redistribute it and/or modify it under | |
9 | the terms of the GNU General Public License as published by the Free | |
10 | Software Foundation; either version 3, or (at your option) any later | |
11 | version. | |
12 | ||
13 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GCC; see the file COPYING3. If not see | |
20 | <http://www.gnu.org/licenses/>. */ | |
21 | ||
22 | ||
23 | /* This program is passed a gcc, a list of gcc arguments and a list of | |
24 | object files containing IL. It scans the argument list to check if | |
25 | we are in whopr mode or not modifies the arguments and needed and | |
26 | prints a list of output files on stdout. | |
27 | ||
28 | Example: | |
29 | ||
30 | $ lto-wrapper gcc/xgcc -B gcc a.o b.o -o test -flto | |
31 | ||
32 | The above will print something like | |
33 | /tmp/ccwbQ8B2.lto.o | |
34 | ||
014d92e1 | 35 | If WHOPR is used instead, more than one file might be produced |
d7f09764 DN |
36 | ./ccXj2DTk.lto.ltrans.o |
37 | ./ccCJuXGv.lto.ltrans.o | |
38 | */ | |
39 | ||
40 | #include "config.h" | |
41 | #include "system.h" | |
10692477 | 42 | #include "coretypes.h" |
d7f09764 | 43 | #include "intl.h" |
2691e6d7 | 44 | #include "diagnostic.h" |
48cf395b | 45 | #include "obstack.h" |
f31c0018 RG |
46 | #include "opts.h" |
47 | #include "options.h" | |
52a35ef7 | 48 | #include "simple-object.h" |
4000360e | 49 | #include "lto-section-names.h" |
a185856a | 50 | #include "collect-utils.h" |
d7f09764 | 51 | |
fc8b3540 IV |
52 | /* Environment variable, used for passing the names of offload targets from GCC |
53 | driver to lto-wrapper. */ | |
54 | #define OFFLOAD_TARGET_NAMES_ENV "OFFLOAD_TARGET_NAMES" | |
55 | ||
d7f09764 | 56 | enum lto_mode_d { |
cf96bae7 RG |
57 | LTO_MODE_NONE, /* Not doing LTO. */ |
58 | LTO_MODE_LTO, /* Normal LTO. */ | |
59 | LTO_MODE_WHOPR /* WHOPR. */ | |
d7f09764 DN |
60 | }; |
61 | ||
62 | /* Current LTO mode. */ | |
63 | static enum lto_mode_d lto_mode = LTO_MODE_NONE; | |
64 | ||
b1b07c92 RG |
65 | static char *ltrans_output_file; |
66 | static char *flto_out; | |
50ee30d5 RG |
67 | static unsigned int nr; |
68 | static char **input_names; | |
69 | static char **output_names; | |
fc8b3540 | 70 | static char **offload_names; |
e6861a99 | 71 | static char *offload_objects_file_name; |
50ee30d5 | 72 | static char *makefile; |
1ea85365 | 73 | static char *debug_obj; |
b1b07c92 | 74 | |
a185856a | 75 | const char tool_name[] = "lto-wrapper"; |
b1b07c92 | 76 | |
a185856a | 77 | /* Delete tempfiles. Called from utils_cleanup. */ |
b1b07c92 | 78 | |
a185856a | 79 | void |
5f0ad6a5 | 80 | tool_cleanup (bool) |
b1b07c92 | 81 | { |
396717c9 RG |
82 | unsigned int i; |
83 | ||
396717c9 | 84 | if (ltrans_output_file) |
a185856a | 85 | maybe_unlink (ltrans_output_file); |
396717c9 | 86 | if (flto_out) |
a185856a | 87 | maybe_unlink (flto_out); |
e6861a99 IV |
88 | if (offload_objects_file_name) |
89 | maybe_unlink (offload_objects_file_name); | |
396717c9 | 90 | if (makefile) |
a185856a | 91 | maybe_unlink (makefile); |
1ea85365 RB |
92 | if (debug_obj) |
93 | maybe_unlink (debug_obj); | |
396717c9 | 94 | for (i = 0; i < nr; ++i) |
8aea79e6 | 95 | { |
a185856a | 96 | maybe_unlink (input_names[i]); |
396717c9 | 97 | if (output_names[i]) |
a185856a | 98 | maybe_unlink (output_names[i]); |
8aea79e6 | 99 | } |
396717c9 RG |
100 | } |
101 | ||
102 | static void | |
a185856a | 103 | lto_wrapper_cleanup (void) |
d7f09764 | 104 | { |
5f0ad6a5 | 105 | utils_cleanup (false); |
d7f09764 DN |
106 | } |
107 | ||
d7f09764 DN |
108 | /* Unlink a temporary LTRANS file unless requested otherwise. */ |
109 | ||
a185856a BS |
110 | void |
111 | maybe_unlink (const char *file) | |
d7f09764 | 112 | { |
608508a6 | 113 | if (!save_temps) |
d7f09764 | 114 | { |
62116e60 RG |
115 | if (unlink_if_ordinary (file) |
116 | && errno != ENOENT) | |
40fecdd6 | 117 | fatal_error (input_location, "deleting LTRANS file %s: %m", file); |
d7f09764 | 118 | } |
eba14fca | 119 | else if (verbose) |
d7f09764 DN |
120 | fprintf (stderr, "[Leaving LTRANS %s]\n", file); |
121 | } | |
122 | ||
48cf395b RB |
123 | /* Template of LTRANS dumpbase suffix. */ |
124 | #define DUMPBASE_SUFFIX ".ltrans18446744073709551615" | |
d7f09764 | 125 | |
f31c0018 RG |
126 | /* Create decoded options from the COLLECT_GCC and COLLECT_GCC_OPTIONS |
127 | environment according to LANG_MASK. */ | |
128 | ||
129 | static void | |
130 | get_options_from_collect_gcc_options (const char *collect_gcc, | |
131 | const char *collect_gcc_options, | |
132 | unsigned int lang_mask, | |
133 | struct cl_decoded_option **decoded_options, | |
134 | unsigned int *decoded_options_count) | |
135 | { | |
969d578c | 136 | struct obstack argv_obstack; |
f31c0018 RG |
137 | char *argv_storage; |
138 | const char **argv; | |
969d578c RG |
139 | int j, k, argc; |
140 | ||
f31c0018 | 141 | argv_storage = xstrdup (collect_gcc_options); |
969d578c RG |
142 | obstack_init (&argv_obstack); |
143 | obstack_ptr_grow (&argv_obstack, collect_gcc); | |
144 | ||
145 | for (j = 0, k = 0; argv_storage[j] != '\0'; ++j) | |
f31c0018 RG |
146 | { |
147 | if (argv_storage[j] == '\'') | |
148 | { | |
969d578c RG |
149 | obstack_ptr_grow (&argv_obstack, &argv_storage[k]); |
150 | ++j; | |
151 | do | |
152 | { | |
153 | if (argv_storage[j] == '\0') | |
40fecdd6 | 154 | fatal_error (input_location, "malformed COLLECT_GCC_OPTIONS"); |
969d578c RG |
155 | else if (strncmp (&argv_storage[j], "'\\''", 4) == 0) |
156 | { | |
157 | argv_storage[k++] = '\''; | |
158 | j += 4; | |
159 | } | |
160 | else if (argv_storage[j] == '\'') | |
161 | break; | |
162 | else | |
163 | argv_storage[k++] = argv_storage[j++]; | |
164 | } | |
165 | while (1); | |
166 | argv_storage[k++] = '\0'; | |
f31c0018 RG |
167 | } |
168 | } | |
969d578c RG |
169 | |
170 | obstack_ptr_grow (&argv_obstack, NULL); | |
171 | argc = obstack_object_size (&argv_obstack) / sizeof (void *) - 1; | |
172 | argv = XOBFINISH (&argv_obstack, const char **); | |
f31c0018 RG |
173 | |
174 | decode_cmdline_options_to_array (argc, (const char **)argv, | |
175 | lang_mask, | |
176 | decoded_options, decoded_options_count); | |
969d578c | 177 | obstack_free (&argv_obstack, NULL); |
f31c0018 RG |
178 | } |
179 | ||
52a35ef7 RG |
180 | /* Append OPTION to the options array DECODED_OPTIONS with size |
181 | DECODED_OPTIONS_COUNT. */ | |
182 | ||
183 | static void | |
184 | append_option (struct cl_decoded_option **decoded_options, | |
185 | unsigned int *decoded_options_count, | |
186 | struct cl_decoded_option *option) | |
187 | { | |
188 | ++*decoded_options_count; | |
189 | *decoded_options | |
190 | = (struct cl_decoded_option *) | |
191 | xrealloc (*decoded_options, | |
192 | (*decoded_options_count | |
193 | * sizeof (struct cl_decoded_option))); | |
194 | memcpy (&(*decoded_options)[*decoded_options_count - 1], option, | |
195 | sizeof (struct cl_decoded_option)); | |
196 | } | |
197 | ||
472a2536 JH |
198 | /* Remove option number INDEX from DECODED_OPTIONS, update |
199 | DECODED_OPTIONS_COUNT. */ | |
200 | ||
201 | static void | |
202 | remove_option (struct cl_decoded_option **decoded_options, | |
203 | int index, unsigned int *decoded_options_count) | |
204 | { | |
205 | --*decoded_options_count; | |
206 | memmove (&(*decoded_options)[index + 1], | |
207 | &(*decoded_options)[index], | |
208 | sizeof (struct cl_decoded_option) | |
209 | * (*decoded_options_count - index)); | |
210 | } | |
211 | ||
52a35ef7 RG |
212 | /* Try to merge and complain about options FDECODED_OPTIONS when applied |
213 | ontop of DECODED_OPTIONS. */ | |
214 | ||
215 | static void | |
216 | merge_and_complain (struct cl_decoded_option **decoded_options, | |
217 | unsigned int *decoded_options_count, | |
218 | struct cl_decoded_option *fdecoded_options, | |
219 | unsigned int fdecoded_options_count) | |
220 | { | |
221 | unsigned int i, j; | |
472a2536 JH |
222 | struct cl_decoded_option *pic_option = NULL; |
223 | struct cl_decoded_option *pie_option = NULL; | |
52a35ef7 RG |
224 | |
225 | /* ??? Merge options from files. Most cases can be | |
226 | handled by either unioning or intersecting | |
227 | (for example -fwrapv is a case for unioning, | |
228 | -ffast-math is for intersection). Most complaints | |
229 | about real conflicts between different options can | |
230 | be deferred to the compiler proper. Options that | |
231 | we can neither safely handle by intersection nor | |
232 | unioning would need to be complained about here. | |
233 | Ideally we'd have a flag in the opt files that | |
234 | tells whether to union or intersect or reject. | |
235 | In absence of that it's unclear what a good default is. | |
236 | It's also difficult to get positional handling correct. */ | |
237 | ||
238 | /* The following does what the old LTO option code did, | |
239 | union all target and a selected set of common options. */ | |
240 | for (i = 0; i < fdecoded_options_count; ++i) | |
241 | { | |
242 | struct cl_decoded_option *foption = &fdecoded_options[i]; | |
243 | switch (foption->opt_index) | |
244 | { | |
169d8507 L |
245 | case OPT_SPECIAL_unknown: |
246 | case OPT_SPECIAL_ignore: | |
247 | case OPT_SPECIAL_program_name: | |
248 | case OPT_SPECIAL_input_file: | |
249 | break; | |
250 | ||
52a35ef7 RG |
251 | default: |
252 | if (!(cl_options[foption->opt_index].flags & CL_TARGET)) | |
253 | break; | |
254 | ||
255 | /* Fallthru. */ | |
eb472171 CLT |
256 | case OPT_fdiagnostics_show_caret: |
257 | case OPT_fdiagnostics_show_option: | |
258 | case OPT_fdiagnostics_show_location_: | |
259 | case OPT_fshow_column: | |
52a35ef7 | 260 | case OPT_fcommon: |
aad038ca | 261 | case OPT_fgnu_tm: |
52a35ef7 RG |
262 | /* Do what the old LTO code did - collect exactly one option |
263 | setting per OPT code, we pick the first we encounter. | |
264 | ??? This doesn't make too much sense, but when it doesn't | |
265 | then we should complain. */ | |
266 | for (j = 0; j < *decoded_options_count; ++j) | |
267 | if ((*decoded_options)[j].opt_index == foption->opt_index) | |
268 | break; | |
269 | if (j == *decoded_options_count) | |
270 | append_option (decoded_options, decoded_options_count, foption); | |
271 | break; | |
8bb50e5c | 272 | |
472a2536 JH |
273 | /* Figure out what PIC/PIE level wins and merge the results. */ |
274 | case OPT_fPIC: | |
275 | case OPT_fpic: | |
276 | pic_option = foption; | |
277 | break; | |
278 | case OPT_fPIE: | |
279 | case OPT_fpie: | |
280 | pie_option = foption; | |
281 | break; | |
282 | ||
1506ae0e | 283 | case OPT_fopenmp: |
a0c88d06 | 284 | case OPT_fopenacc: |
b0b35f86 | 285 | case OPT_fcilkplus: |
8e9b2773 | 286 | case OPT_fcheck_pointer_bounds: |
4094757e RB |
287 | /* For selected options we can merge conservatively. */ |
288 | for (j = 0; j < *decoded_options_count; ++j) | |
289 | if ((*decoded_options)[j].opt_index == foption->opt_index) | |
290 | break; | |
291 | if (j == *decoded_options_count) | |
292 | append_option (decoded_options, decoded_options_count, foption); | |
2fff1c81 JH |
293 | /* -fopenmp > -fno-openmp, |
294 | -fopenacc > -fno-openacc, | |
295 | -fcilkplus > -fno-cilkplus, | |
296 | -fcheck_pointer_bounds > -fcheck_pointer_bounds */ | |
4094757e RB |
297 | else if (foption->value > (*decoded_options)[j].value) |
298 | (*decoded_options)[j] = *foption; | |
299 | break; | |
300 | ||
b6adbb9f NS |
301 | case OPT_fopenacc_dim_: |
302 | /* Append or check identical. */ | |
303 | for (j = 0; j < *decoded_options_count; ++j) | |
304 | if ((*decoded_options)[j].opt_index == foption->opt_index) | |
305 | break; | |
306 | if (j == *decoded_options_count) | |
307 | append_option (decoded_options, decoded_options_count, foption); | |
308 | else if (strcmp ((*decoded_options)[j].arg, foption->arg)) | |
309 | fatal_error (input_location, | |
310 | "Option %s with different values", | |
311 | foption->orig_option_with_args_text); | |
312 | break; | |
313 | ||
f3ba16d0 RB |
314 | case OPT_O: |
315 | case OPT_Ofast: | |
316 | case OPT_Og: | |
317 | case OPT_Os: | |
318 | for (j = 0; j < *decoded_options_count; ++j) | |
319 | if ((*decoded_options)[j].opt_index == OPT_O | |
320 | || (*decoded_options)[j].opt_index == OPT_Ofast | |
321 | || (*decoded_options)[j].opt_index == OPT_Og | |
322 | || (*decoded_options)[j].opt_index == OPT_Os) | |
323 | break; | |
324 | if (j == *decoded_options_count) | |
325 | append_option (decoded_options, decoded_options_count, foption); | |
326 | else if ((*decoded_options)[j].opt_index == foption->opt_index | |
327 | && foption->opt_index != OPT_O) | |
328 | /* Exact same options get merged. */ | |
329 | ; | |
330 | else | |
331 | { | |
332 | /* For mismatched option kinds preserve the optimization | |
333 | level only, thus merge it as -On. This also handles | |
334 | merging of same optimization level -On. */ | |
335 | int level = 0; | |
336 | switch (foption->opt_index) | |
337 | { | |
338 | case OPT_O: | |
339 | if (foption->arg[0] == '\0') | |
340 | level = MAX (level, 1); | |
341 | else | |
342 | level = MAX (level, atoi (foption->arg)); | |
343 | break; | |
344 | case OPT_Ofast: | |
345 | level = MAX (level, 3); | |
346 | break; | |
347 | case OPT_Og: | |
348 | level = MAX (level, 1); | |
349 | break; | |
350 | case OPT_Os: | |
351 | level = MAX (level, 2); | |
352 | break; | |
353 | default: | |
354 | gcc_unreachable (); | |
355 | } | |
356 | switch ((*decoded_options)[j].opt_index) | |
357 | { | |
358 | case OPT_O: | |
359 | if ((*decoded_options)[j].arg[0] == '\0') | |
360 | level = MAX (level, 1); | |
361 | else | |
362 | level = MAX (level, atoi ((*decoded_options)[j].arg)); | |
363 | break; | |
364 | case OPT_Ofast: | |
365 | level = MAX (level, 3); | |
366 | break; | |
367 | case OPT_Og: | |
368 | level = MAX (level, 1); | |
369 | break; | |
370 | case OPT_Os: | |
371 | level = MAX (level, 2); | |
372 | break; | |
373 | default: | |
374 | gcc_unreachable (); | |
375 | } | |
376 | (*decoded_options)[j].opt_index = OPT_O; | |
377 | char *tem; | |
582f770b | 378 | tem = xasprintf ("-O%d", level); |
f3ba16d0 RB |
379 | (*decoded_options)[j].arg = &tem[2]; |
380 | (*decoded_options)[j].canonical_option[0] = tem; | |
381 | (*decoded_options)[j].value = 1; | |
382 | } | |
383 | break; | |
472a2536 JH |
384 | |
385 | ||
386 | case OPT_foffload_abi_: | |
387 | for (j = 0; j < *decoded_options_count; ++j) | |
388 | if ((*decoded_options)[j].opt_index == foption->opt_index) | |
389 | break; | |
390 | if (j == *decoded_options_count) | |
391 | append_option (decoded_options, decoded_options_count, foption); | |
392 | else if (foption->value != (*decoded_options)[j].value) | |
393 | fatal_error (input_location, | |
394 | "Option %s not used consistently in all LTO input" | |
395 | " files", foption->orig_option_with_args_text); | |
396 | break; | |
397 | ||
c713ddc0 BS |
398 | |
399 | case OPT_foffload_: | |
400 | append_option (decoded_options, decoded_options_count, foption); | |
401 | break; | |
52a35ef7 RG |
402 | } |
403 | } | |
472a2536 JH |
404 | |
405 | /* Merge PIC options: | |
406 | -fPIC + -fpic = -fpic | |
407 | -fPIC + -fno-pic = -fno-pic | |
408 | -fpic/-fPIC + nothin = nothing. | |
409 | It is a common mistake to mix few -fPIC compiled objects into otherwise | |
410 | non-PIC code. We do not want to build everything with PIC then. | |
411 | ||
412 | It would be good to warn on mismatches, but it is bit hard to do as | |
413 | we do not know what nothing translates to. */ | |
414 | ||
415 | for (unsigned int j = 0; j < *decoded_options_count;) | |
416 | if ((*decoded_options)[j].opt_index == OPT_fPIC | |
417 | || (*decoded_options)[j].opt_index == OPT_fpic) | |
418 | { | |
419 | if (!pic_option | |
420 | || (pic_option->value > 0) != ((*decoded_options)[j].value > 0)) | |
421 | remove_option (decoded_options, j, decoded_options_count); | |
422 | else if (pic_option->opt_index == OPT_fPIC | |
423 | && (*decoded_options)[j].opt_index == OPT_fpic) | |
424 | { | |
425 | (*decoded_options)[j] = *pic_option; | |
426 | j++; | |
427 | } | |
428 | else | |
429 | j++; | |
430 | } | |
431 | else if ((*decoded_options)[j].opt_index == OPT_fPIE | |
432 | || (*decoded_options)[j].opt_index == OPT_fpie) | |
433 | { | |
434 | if (!pie_option | |
435 | || pie_option->value != (*decoded_options)[j].value) | |
436 | remove_option (decoded_options, j, decoded_options_count); | |
437 | else if (pie_option->opt_index == OPT_fPIE | |
438 | && (*decoded_options)[j].opt_index == OPT_fpie) | |
439 | { | |
440 | (*decoded_options)[j] = *pie_option; | |
441 | j++; | |
442 | } | |
443 | else | |
444 | j++; | |
445 | } | |
446 | else | |
447 | j++; | |
52a35ef7 | 448 | } |
f31c0018 | 449 | |
fc8b3540 IV |
450 | /* Auxiliary function that frees elements of PTR and PTR itself. |
451 | N is number of elements to be freed. If PTR is NULL, nothing is freed. | |
452 | If an element is NULL, subsequent elements are not freed. */ | |
453 | ||
454 | static void ** | |
455 | free_array_of_ptrs (void **ptr, unsigned n) | |
456 | { | |
457 | if (!ptr) | |
458 | return NULL; | |
459 | for (unsigned i = 0; i < n; i++) | |
460 | { | |
461 | if (!ptr[i]) | |
462 | break; | |
463 | free (ptr[i]); | |
464 | } | |
465 | free (ptr); | |
466 | return NULL; | |
467 | } | |
468 | ||
469 | /* Parse STR, saving found tokens into PVALUES and return their number. | |
470 | Tokens are assumed to be delimited by ':'. If APPEND is non-null, | |
471 | append it to every token we find. */ | |
472 | ||
473 | static unsigned | |
474 | parse_env_var (const char *str, char ***pvalues, const char *append) | |
475 | { | |
476 | const char *curval, *nextval; | |
477 | char **values; | |
478 | unsigned num = 1, i; | |
479 | ||
480 | curval = strchr (str, ':'); | |
481 | while (curval) | |
482 | { | |
483 | num++; | |
484 | curval = strchr (curval + 1, ':'); | |
485 | } | |
486 | ||
487 | values = (char**) xmalloc (num * sizeof (char*)); | |
488 | curval = str; | |
b08dec2f DH |
489 | nextval = strchr (curval, ':'); |
490 | if (nextval == NULL) | |
491 | nextval = strchr (curval, '\0'); | |
fc8b3540 IV |
492 | |
493 | int append_len = append ? strlen (append) : 0; | |
494 | for (i = 0; i < num; i++) | |
495 | { | |
496 | int l = nextval - curval; | |
497 | values[i] = (char*) xmalloc (l + 1 + append_len); | |
498 | memcpy (values[i], curval, l); | |
499 | values[i][l] = 0; | |
500 | if (append) | |
501 | strcat (values[i], append); | |
502 | curval = nextval + 1; | |
b08dec2f DH |
503 | nextval = strchr (curval, ':'); |
504 | if (nextval == NULL) | |
505 | nextval = strchr (curval, '\0'); | |
fc8b3540 IV |
506 | } |
507 | *pvalues = values; | |
508 | return num; | |
509 | } | |
510 | ||
c713ddc0 BS |
511 | /* Append options OPTS from lto or offload_lto sections to ARGV_OBSTACK. */ |
512 | ||
513 | static void | |
514 | append_compiler_options (obstack *argv_obstack, struct cl_decoded_option *opts, | |
515 | unsigned int count) | |
516 | { | |
517 | /* Append compiler driver arguments as far as they were merged. */ | |
518 | for (unsigned int j = 1; j < count; ++j) | |
519 | { | |
520 | struct cl_decoded_option *option = &opts[j]; | |
521 | ||
522 | /* File options have been properly filtered by lto-opts.c. */ | |
523 | switch (option->opt_index) | |
524 | { | |
525 | /* Drop arguments that we want to take from the link line. */ | |
526 | case OPT_flto_: | |
527 | case OPT_flto: | |
528 | case OPT_flto_partition_: | |
529 | continue; | |
530 | ||
531 | default: | |
532 | break; | |
533 | } | |
534 | ||
535 | /* For now do what the original LTO option code was doing - pass | |
536 | on any CL_TARGET flag and a few selected others. */ | |
537 | switch (option->opt_index) | |
538 | { | |
eb472171 CLT |
539 | case OPT_fdiagnostics_show_caret: |
540 | case OPT_fdiagnostics_show_option: | |
541 | case OPT_fdiagnostics_show_location_: | |
542 | case OPT_fshow_column: | |
c713ddc0 BS |
543 | case OPT_fPIC: |
544 | case OPT_fpic: | |
545 | case OPT_fPIE: | |
546 | case OPT_fpie: | |
547 | case OPT_fcommon: | |
c713ddc0 | 548 | case OPT_fgnu_tm: |
1506ae0e | 549 | case OPT_fopenmp: |
a0c88d06 | 550 | case OPT_fopenacc: |
b6adbb9f | 551 | case OPT_fopenacc_dim_: |
b0b35f86 | 552 | case OPT_fcilkplus: |
c713ddc0 BS |
553 | case OPT_foffload_abi_: |
554 | case OPT_O: | |
555 | case OPT_Ofast: | |
556 | case OPT_Og: | |
557 | case OPT_Os: | |
8e9b2773 | 558 | case OPT_fcheck_pointer_bounds: |
c713ddc0 BS |
559 | break; |
560 | ||
561 | default: | |
562 | if (!(cl_options[option->opt_index].flags & CL_TARGET)) | |
563 | continue; | |
564 | } | |
565 | ||
566 | /* Pass the option on. */ | |
567 | for (unsigned int i = 0; i < option->canonical_option_num_elements; ++i) | |
568 | obstack_ptr_grow (argv_obstack, option->canonical_option[i]); | |
569 | } | |
570 | } | |
571 | ||
34df756c TV |
572 | /* Append diag options in OPTS with length COUNT to ARGV_OBSTACK. */ |
573 | ||
574 | static void | |
575 | append_diag_options (obstack *argv_obstack, struct cl_decoded_option *opts, | |
576 | unsigned int count) | |
577 | { | |
578 | /* Append compiler driver arguments as far as they were merged. */ | |
579 | for (unsigned int j = 1; j < count; ++j) | |
580 | { | |
581 | struct cl_decoded_option *option = &opts[j]; | |
582 | ||
583 | switch (option->opt_index) | |
584 | { | |
585 | case OPT_fdiagnostics_color_: | |
586 | case OPT_fdiagnostics_show_caret: | |
587 | case OPT_fdiagnostics_show_option: | |
588 | case OPT_fdiagnostics_show_location_: | |
589 | case OPT_fshow_column: | |
590 | break; | |
591 | default: | |
592 | continue; | |
593 | } | |
594 | ||
595 | /* Pass the option on. */ | |
596 | for (unsigned int i = 0; i < option->canonical_option_num_elements; ++i) | |
597 | obstack_ptr_grow (argv_obstack, option->canonical_option[i]); | |
598 | } | |
599 | } | |
600 | ||
601 | ||
c713ddc0 BS |
602 | /* Append linker options OPTS to ARGV_OBSTACK. */ |
603 | ||
604 | static void | |
605 | append_linker_options (obstack *argv_obstack, struct cl_decoded_option *opts, | |
606 | unsigned int count) | |
607 | { | |
608 | /* Append linker driver arguments. Compiler options from the linker | |
609 | driver arguments will override / merge with those from the compiler. */ | |
610 | for (unsigned int j = 1; j < count; ++j) | |
611 | { | |
612 | struct cl_decoded_option *option = &opts[j]; | |
613 | ||
614 | /* Do not pass on frontend specific flags not suitable for lto. */ | |
615 | if (!(cl_options[option->opt_index].flags | |
616 | & (CL_COMMON|CL_TARGET|CL_DRIVER|CL_LTO))) | |
617 | continue; | |
618 | ||
619 | switch (option->opt_index) | |
620 | { | |
621 | case OPT_o: | |
622 | case OPT_flto_: | |
623 | case OPT_flto: | |
624 | /* We've handled these LTO options, do not pass them on. */ | |
625 | continue; | |
626 | ||
b0b35f86 JJ |
627 | case OPT_fopenmp: |
628 | case OPT_fopenacc: | |
629 | case OPT_fcilkplus: | |
630 | /* Ignore -fno-XXX form of these options, as otherwise | |
631 | corresponding builtins will not be enabled. */ | |
632 | if (option->value == 0) | |
633 | continue; | |
634 | break; | |
635 | ||
c713ddc0 BS |
636 | default: |
637 | break; | |
638 | } | |
639 | ||
640 | /* Pass the option on. */ | |
641 | for (unsigned int i = 0; i < option->canonical_option_num_elements; ++i) | |
642 | obstack_ptr_grow (argv_obstack, option->canonical_option[i]); | |
643 | } | |
644 | } | |
645 | ||
646 | /* Extract options for TARGET offload compiler from OPTIONS and append | |
647 | them to ARGV_OBSTACK. */ | |
648 | ||
649 | static void | |
650 | append_offload_options (obstack *argv_obstack, const char *target, | |
651 | struct cl_decoded_option *options, | |
652 | unsigned int options_count) | |
653 | { | |
654 | for (unsigned i = 0; i < options_count; i++) | |
655 | { | |
656 | const char *cur, *next, *opts; | |
657 | char **argv; | |
658 | unsigned argc; | |
659 | struct cl_decoded_option *option = &options[i]; | |
660 | ||
661 | if (option->opt_index != OPT_foffload_) | |
662 | continue; | |
663 | ||
664 | /* If option argument starts with '-' then no target is specified. That | |
665 | means offload options are specified for all targets, so we need to | |
666 | append them. */ | |
667 | if (option->arg[0] == '-') | |
668 | opts = option->arg; | |
669 | else | |
670 | { | |
671 | opts = strchr (option->arg, '='); | |
64186aad TS |
672 | /* If there are offload targets specified, but no actual options, |
673 | there is nothing to do here. */ | |
c713ddc0 BS |
674 | if (!opts) |
675 | continue; | |
676 | ||
677 | cur = option->arg; | |
678 | ||
679 | while (cur < opts) | |
680 | { | |
b08dec2f DH |
681 | next = strchr (cur, ','); |
682 | if (next == NULL) | |
191ec640 | 683 | next = opts; |
c713ddc0 BS |
684 | next = (next > opts) ? opts : next; |
685 | ||
64186aad | 686 | /* Are we looking for this offload target? */ |
c713ddc0 BS |
687 | if (strlen (target) == (size_t) (next - cur) |
688 | && strncmp (target, cur, next - cur) == 0) | |
689 | break; | |
690 | ||
64186aad | 691 | /* Skip the comma or equal sign. */ |
c713ddc0 BS |
692 | cur = next + 1; |
693 | } | |
694 | ||
695 | if (cur >= opts) | |
696 | continue; | |
697 | ||
698 | opts++; | |
699 | } | |
700 | ||
701 | argv = buildargv (opts); | |
702 | for (argc = 0; argv[argc]; argc++) | |
703 | obstack_ptr_grow (argv_obstack, argv[argc]); | |
704 | } | |
705 | } | |
706 | ||
fc8b3540 IV |
707 | /* Check whether NAME can be accessed in MODE. This is like access, |
708 | except that it never considers directories to be executable. */ | |
709 | ||
710 | static int | |
711 | access_check (const char *name, int mode) | |
712 | { | |
713 | if (mode == X_OK) | |
714 | { | |
715 | struct stat st; | |
716 | ||
717 | if (stat (name, &st) < 0 | |
718 | || S_ISDIR (st.st_mode)) | |
719 | return -1; | |
720 | } | |
721 | ||
722 | return access (name, mode); | |
723 | } | |
724 | ||
725 | /* Prepare a target image for offload TARGET, using mkoffload tool from | |
726 | COMPILER_PATH. Return the name of the resultant object file. */ | |
727 | ||
728 | static char * | |
729 | compile_offload_image (const char *target, const char *compiler_path, | |
c713ddc0 BS |
730 | unsigned in_argc, char *in_argv[], |
731 | struct cl_decoded_option *compiler_opts, | |
732 | unsigned int compiler_opt_count, | |
733 | struct cl_decoded_option *linker_opts, | |
734 | unsigned int linker_opt_count) | |
fc8b3540 IV |
735 | { |
736 | char *filename = NULL; | |
737 | char **argv; | |
738 | char *suffix | |
739 | = XALLOCAVEC (char, sizeof ("/accel//mkoffload") + strlen (target)); | |
740 | strcpy (suffix, "/accel/"); | |
741 | strcat (suffix, target); | |
742 | strcat (suffix, "/mkoffload"); | |
743 | ||
744 | char **paths = NULL; | |
745 | unsigned n_paths = parse_env_var (compiler_path, &paths, suffix); | |
746 | ||
747 | const char *compiler = NULL; | |
748 | for (unsigned i = 0; i < n_paths; i++) | |
749 | if (access_check (paths[i], X_OK) == 0) | |
750 | { | |
751 | compiler = paths[i]; | |
752 | break; | |
753 | } | |
754 | ||
755 | if (compiler) | |
756 | { | |
757 | /* Generate temporary output file name. */ | |
758 | filename = make_temp_file (".target.o"); | |
759 | ||
760 | struct obstack argv_obstack; | |
761 | obstack_init (&argv_obstack); | |
762 | obstack_ptr_grow (&argv_obstack, compiler); | |
4314a3ef TS |
763 | if (save_temps) |
764 | obstack_ptr_grow (&argv_obstack, "-save-temps"); | |
0fe78d19 TS |
765 | if (verbose) |
766 | obstack_ptr_grow (&argv_obstack, "-v"); | |
fc8b3540 IV |
767 | obstack_ptr_grow (&argv_obstack, "-o"); |
768 | obstack_ptr_grow (&argv_obstack, filename); | |
769 | ||
c713ddc0 | 770 | /* Append names of input object files. */ |
443743fd | 771 | for (unsigned i = 0; i < in_argc; i++) |
fc8b3540 | 772 | obstack_ptr_grow (&argv_obstack, in_argv[i]); |
fc8b3540 | 773 | |
c713ddc0 BS |
774 | /* Append options from offload_lto sections. */ |
775 | append_compiler_options (&argv_obstack, compiler_opts, | |
776 | compiler_opt_count); | |
34df756c | 777 | append_diag_options (&argv_obstack, linker_opts, linker_opt_count); |
c713ddc0 BS |
778 | |
779 | /* Append options specified by -foffload last. In case of conflicting | |
780 | options we expect offload compiler to choose the latest. */ | |
781 | append_offload_options (&argv_obstack, target, compiler_opts, | |
782 | compiler_opt_count); | |
783 | append_offload_options (&argv_obstack, target, linker_opts, | |
784 | linker_opt_count); | |
785 | ||
786 | obstack_ptr_grow (&argv_obstack, NULL); | |
fc8b3540 IV |
787 | argv = XOBFINISH (&argv_obstack, char **); |
788 | fork_execute (argv[0], argv, true); | |
789 | obstack_free (&argv_obstack, NULL); | |
790 | } | |
791 | ||
792 | free_array_of_ptrs ((void **) paths, n_paths); | |
793 | return filename; | |
794 | } | |
795 | ||
796 | ||
797 | /* The main routine dealing with offloading. | |
798 | The routine builds a target image for each offload target. IN_ARGC and | |
799 | IN_ARGV specify options and input object files. As all of them could contain | |
800 | target sections, we pass them all to target compilers. */ | |
801 | ||
802 | static void | |
c713ddc0 BS |
803 | compile_images_for_offload_targets (unsigned in_argc, char *in_argv[], |
804 | struct cl_decoded_option *compiler_opts, | |
805 | unsigned int compiler_opt_count, | |
806 | struct cl_decoded_option *linker_opts, | |
807 | unsigned int linker_opt_count) | |
fc8b3540 IV |
808 | { |
809 | char **names = NULL; | |
810 | const char *target_names = getenv (OFFLOAD_TARGET_NAMES_ENV); | |
811 | if (!target_names) | |
812 | return; | |
813 | unsigned num_targets = parse_env_var (target_names, &names, NULL); | |
814 | ||
b2b40051 | 815 | int next_name_entry = 0; |
fc8b3540 IV |
816 | const char *compiler_path = getenv ("COMPILER_PATH"); |
817 | if (!compiler_path) | |
818 | goto out; | |
819 | ||
820 | /* Prepare an image for each target and save the name of the resultant object | |
821 | file to the OFFLOAD_NAMES array. It is terminated by a NULL entry. */ | |
822 | offload_names = XCNEWVEC (char *, num_targets + 1); | |
823 | for (unsigned i = 0; i < num_targets; i++) | |
824 | { | |
b2b40051 MJ |
825 | /* HSA does not use LTO-like streaming and a different compiler, skip |
826 | it. */ | |
827 | if (strcmp (names[i], "hsa") == 0) | |
828 | continue; | |
829 | ||
830 | offload_names[next_name_entry] | |
c713ddc0 BS |
831 | = compile_offload_image (names[i], compiler_path, in_argc, in_argv, |
832 | compiler_opts, compiler_opt_count, | |
833 | linker_opts, linker_opt_count); | |
b2b40051 | 834 | if (!offload_names[next_name_entry]) |
40fecdd6 JM |
835 | fatal_error (input_location, |
836 | "problem with building target image for %s\n", names[i]); | |
b2b40051 | 837 | next_name_entry++; |
fc8b3540 IV |
838 | } |
839 | ||
840 | out: | |
841 | free_array_of_ptrs ((void **) names, num_targets); | |
842 | } | |
843 | ||
844 | /* Copy a file from SRC to DEST. */ | |
845 | ||
846 | static void | |
847 | copy_file (const char *dest, const char *src) | |
848 | { | |
849 | FILE *d = fopen (dest, "wb"); | |
850 | FILE *s = fopen (src, "rb"); | |
851 | char buffer[512]; | |
852 | while (!feof (s)) | |
853 | { | |
854 | size_t len = fread (buffer, 1, 512, s); | |
855 | if (ferror (s) != 0) | |
40fecdd6 | 856 | fatal_error (input_location, "reading input file"); |
fc8b3540 IV |
857 | if (len > 0) |
858 | { | |
859 | fwrite (buffer, 1, len, d); | |
860 | if (ferror (d) != 0) | |
40fecdd6 | 861 | fatal_error (input_location, "writing output file"); |
fc8b3540 IV |
862 | } |
863 | } | |
367e91e1 SL |
864 | fclose (d); |
865 | fclose (s); | |
fc8b3540 IV |
866 | } |
867 | ||
e6861a99 IV |
868 | /* Find the crtoffloadtable.o file in LIBRARY_PATH, make copy and pass name of |
869 | the copy to the linker. */ | |
fc8b3540 IV |
870 | |
871 | static void | |
e6861a99 | 872 | find_crtoffloadtable (void) |
fc8b3540 IV |
873 | { |
874 | char **paths = NULL; | |
875 | const char *library_path = getenv ("LIBRARY_PATH"); | |
876 | if (!library_path) | |
877 | return; | |
e6861a99 | 878 | unsigned n_paths = parse_env_var (library_path, &paths, "/crtoffloadtable.o"); |
fc8b3540 IV |
879 | |
880 | unsigned i; | |
881 | for (i = 0; i < n_paths; i++) | |
882 | if (access_check (paths[i], R_OK) == 0) | |
883 | { | |
e6861a99 IV |
884 | /* The linker will delete the filename we give it, so make a copy. */ |
885 | char *crtoffloadtable = make_temp_file (".crtoffloadtable.o"); | |
886 | copy_file (crtoffloadtable, paths[i]); | |
887 | printf ("%s\n", crtoffloadtable); | |
888 | XDELETEVEC (crtoffloadtable); | |
fc8b3540 IV |
889 | break; |
890 | } | |
891 | if (i == n_paths) | |
40fecdd6 | 892 | fatal_error (input_location, |
e6861a99 | 893 | "installation error, can't find crtoffloadtable.o"); |
fc8b3540 IV |
894 | |
895 | free_array_of_ptrs ((void **) paths, n_paths); | |
896 | } | |
897 | ||
c713ddc0 BS |
898 | /* A subroutine of run_gcc. Examine the open file FD for lto sections with |
899 | name prefix PREFIX, at FILE_OFFSET, and store any options we find in OPTS | |
900 | and OPT_COUNT. Return true if we found a matchingn section, false | |
901 | otherwise. COLLECT_GCC holds the value of the environment variable with | |
902 | the same name. */ | |
903 | ||
904 | static bool | |
905 | find_and_merge_options (int fd, off_t file_offset, const char *prefix, | |
906 | struct cl_decoded_option **opts, | |
907 | unsigned int *opt_count, const char *collect_gcc) | |
908 | { | |
909 | off_t offset, length; | |
910 | char *data; | |
911 | char *fopts; | |
912 | const char *errmsg; | |
913 | int err; | |
914 | struct cl_decoded_option *fdecoded_options = *opts; | |
915 | unsigned int fdecoded_options_count = *opt_count; | |
916 | ||
917 | simple_object_read *sobj; | |
918 | sobj = simple_object_start_read (fd, file_offset, "__GNU_LTO", | |
919 | &errmsg, &err); | |
920 | if (!sobj) | |
921 | return false; | |
922 | ||
923 | char *secname = XALLOCAVEC (char, strlen (prefix) + sizeof (".opts")); | |
924 | strcpy (secname, prefix); | |
925 | strcat (secname, ".opts"); | |
926 | if (!simple_object_find_section (sobj, secname, &offset, &length, | |
927 | &errmsg, &err)) | |
928 | { | |
929 | simple_object_release_read (sobj); | |
930 | return false; | |
931 | } | |
932 | ||
933 | lseek (fd, file_offset + offset, SEEK_SET); | |
934 | data = (char *)xmalloc (length); | |
935 | read (fd, data, length); | |
936 | fopts = data; | |
937 | do | |
938 | { | |
939 | struct cl_decoded_option *f2decoded_options; | |
940 | unsigned int f2decoded_options_count; | |
941 | get_options_from_collect_gcc_options (collect_gcc, | |
942 | fopts, CL_LANG_ALL, | |
943 | &f2decoded_options, | |
944 | &f2decoded_options_count); | |
945 | if (!fdecoded_options) | |
946 | { | |
947 | fdecoded_options = f2decoded_options; | |
948 | fdecoded_options_count = f2decoded_options_count; | |
949 | } | |
950 | else | |
951 | merge_and_complain (&fdecoded_options, | |
952 | &fdecoded_options_count, | |
953 | f2decoded_options, f2decoded_options_count); | |
954 | ||
955 | fopts += strlen (fopts) + 1; | |
956 | } | |
957 | while (fopts - data < length); | |
958 | ||
959 | free (data); | |
960 | simple_object_release_read (sobj); | |
961 | *opts = fdecoded_options; | |
962 | *opt_count = fdecoded_options_count; | |
963 | return true; | |
964 | } | |
965 | ||
1ea85365 RB |
966 | /* Copy early debug info sections from INFILE to a new file whose name |
967 | is returned. Return NULL on error. */ | |
968 | ||
969 | const char * | |
970 | debug_objcopy (const char *infile) | |
971 | { | |
972 | const char *outfile; | |
973 | const char *errmsg; | |
974 | int err; | |
975 | ||
976 | const char *p; | |
977 | off_t inoff = 0; | |
978 | long loffset; | |
979 | int consumed; | |
980 | if ((p = strrchr (infile, '@')) | |
981 | && p != infile | |
982 | && sscanf (p, "@%li%n", &loffset, &consumed) >= 1 | |
983 | && strlen (p) == (unsigned int) consumed) | |
984 | { | |
985 | char *fname = xstrdup (infile); | |
986 | fname[p - infile] = '\0'; | |
987 | infile = fname; | |
988 | inoff = (off_t) loffset; | |
989 | } | |
990 | int infd = open (infile, O_RDONLY); | |
991 | if (infd == -1) | |
992 | return NULL; | |
993 | simple_object_read *inobj = simple_object_start_read (infd, inoff, | |
994 | "__GNU_LTO", | |
995 | &errmsg, &err); | |
996 | if (!inobj) | |
997 | return NULL; | |
998 | ||
999 | off_t off, len; | |
1000 | if (simple_object_find_section (inobj, ".gnu.debuglto_.debug_info", | |
1001 | &off, &len, &errmsg, &err) != 1) | |
1002 | { | |
1003 | if (errmsg) | |
1004 | fatal_error (0, "%s: %s\n", errmsg, xstrerror (err)); | |
1005 | ||
1006 | simple_object_release_read (inobj); | |
1007 | close (infd); | |
1008 | return NULL; | |
1009 | } | |
1010 | ||
1011 | outfile = make_temp_file ("debugobjtem"); | |
1012 | errmsg = simple_object_copy_lto_debug_sections (inobj, outfile, &err); | |
1013 | if (errmsg) | |
1014 | { | |
1015 | unlink_if_ordinary (outfile); | |
1016 | fatal_error (0, "%s: %s\n", errmsg, xstrerror (err)); | |
1017 | } | |
1018 | ||
1019 | simple_object_release_read (inobj); | |
1020 | close (infd); | |
1021 | ||
1022 | return outfile; | |
1023 | } | |
1024 | ||
1025 | ||
1026 | ||
d7f09764 DN |
1027 | /* Execute gcc. ARGC is the number of arguments. ARGV contains the arguments. */ |
1028 | ||
1029 | static void | |
1030 | run_gcc (unsigned argc, char *argv[]) | |
1031 | { | |
cf96bae7 | 1032 | unsigned i, j; |
d7f09764 DN |
1033 | const char **new_argv; |
1034 | const char **argv_ptr; | |
d7f09764 | 1035 | char *list_option_full = NULL; |
cf96bae7 | 1036 | const char *linker_output = NULL; |
f31c0018 | 1037 | const char *collect_gcc, *collect_gcc_options; |
c04b6b38 | 1038 | int parallel = 0; |
a478ffff | 1039 | int jobserver = 0; |
014d92e1 | 1040 | bool no_partition = false; |
52a35ef7 | 1041 | struct cl_decoded_option *fdecoded_options = NULL; |
c713ddc0 | 1042 | struct cl_decoded_option *offload_fdecoded_options = NULL; |
52a35ef7 | 1043 | unsigned int fdecoded_options_count = 0; |
c713ddc0 | 1044 | unsigned int offload_fdecoded_options_count = 0; |
f31c0018 RG |
1045 | struct cl_decoded_option *decoded_options; |
1046 | unsigned int decoded_options_count; | |
ef6f874e RG |
1047 | struct obstack argv_obstack; |
1048 | int new_head_argc; | |
fc8b3540 IV |
1049 | bool have_lto = false; |
1050 | bool have_offload = false; | |
1ea85365 RB |
1051 | unsigned lto_argc = 0, ltoobj_argc = 0; |
1052 | char **lto_argv, **ltoobj_argv; | |
1053 | bool skip_debug = false; | |
1054 | unsigned n_debugobj; | |
cf96bae7 RG |
1055 | |
1056 | /* Get the driver and options. */ | |
1057 | collect_gcc = getenv ("COLLECT_GCC"); | |
1058 | if (!collect_gcc) | |
40fecdd6 JM |
1059 | fatal_error (input_location, |
1060 | "environment variable COLLECT_GCC must be set"); | |
cf96bae7 RG |
1061 | collect_gcc_options = getenv ("COLLECT_GCC_OPTIONS"); |
1062 | if (!collect_gcc_options) | |
40fecdd6 JM |
1063 | fatal_error (input_location, |
1064 | "environment variable COLLECT_GCC_OPTIONS must be set"); | |
f31c0018 RG |
1065 | get_options_from_collect_gcc_options (collect_gcc, collect_gcc_options, |
1066 | CL_LANG_ALL, | |
1067 | &decoded_options, | |
1068 | &decoded_options_count); | |
cf96bae7 | 1069 | |
e6861a99 | 1070 | /* Allocate array for input object files with LTO IL, |
443743fd IV |
1071 | and for possible preceding arguments. */ |
1072 | lto_argv = XNEWVEC (char *, argc); | |
1ea85365 | 1073 | ltoobj_argv = XNEWVEC (char *, argc); |
443743fd | 1074 | |
52a35ef7 RG |
1075 | /* Look at saved options in the IL files. */ |
1076 | for (i = 1; i < argc; ++i) | |
1077 | { | |
c713ddc0 | 1078 | char *p; |
52a35ef7 | 1079 | int fd; |
c713ddc0 | 1080 | off_t file_offset = 0; |
52a35ef7 | 1081 | long loffset; |
52a35ef7 | 1082 | int consumed; |
52a35ef7 | 1083 | char *filename = argv[i]; |
c713ddc0 | 1084 | |
e6861a99 IV |
1085 | if (strncmp (argv[i], "-foffload-objects=", |
1086 | sizeof ("-foffload-objects=") - 1) == 0) | |
1087 | { | |
1088 | have_offload = true; | |
1089 | offload_objects_file_name | |
1090 | = argv[i] + sizeof ("-foffload-objects=") - 1; | |
1091 | continue; | |
1092 | } | |
1093 | ||
52a35ef7 RG |
1094 | if ((p = strrchr (argv[i], '@')) |
1095 | && p != argv[i] | |
1096 | && sscanf (p, "@%li%n", &loffset, &consumed) >= 1 | |
1097 | && strlen (p) == (unsigned int) consumed) | |
1098 | { | |
1099 | filename = XNEWVEC (char, p - argv[i] + 1); | |
1100 | memcpy (filename, argv[i], p - argv[i]); | |
1101 | filename[p - argv[i]] = '\0'; | |
1102 | file_offset = (off_t) loffset; | |
1103 | } | |
1473ab9a | 1104 | fd = open (filename, O_RDONLY | O_BINARY); |
52a35ef7 | 1105 | if (fd == -1) |
443743fd IV |
1106 | { |
1107 | lto_argv[lto_argc++] = argv[i]; | |
1108 | continue; | |
1109 | } | |
1110 | ||
1111 | if (find_and_merge_options (fd, file_offset, LTO_SECTION_NAME_PREFIX, | |
1112 | &fdecoded_options, &fdecoded_options_count, | |
1113 | collect_gcc)) | |
1114 | { | |
1115 | have_lto = true; | |
1ea85365 | 1116 | ltoobj_argv[ltoobj_argc++] = argv[i]; |
443743fd | 1117 | } |
52a35ef7 RG |
1118 | close (fd); |
1119 | } | |
1120 | ||
cf96bae7 | 1121 | /* Initalize the common arguments for the driver. */ |
ef6f874e RG |
1122 | obstack_init (&argv_obstack); |
1123 | obstack_ptr_grow (&argv_obstack, collect_gcc); | |
1124 | obstack_ptr_grow (&argv_obstack, "-xlto"); | |
1125 | obstack_ptr_grow (&argv_obstack, "-c"); | |
52a35ef7 | 1126 | |
c713ddc0 BS |
1127 | append_compiler_options (&argv_obstack, fdecoded_options, |
1128 | fdecoded_options_count); | |
1129 | append_linker_options (&argv_obstack, decoded_options, decoded_options_count); | |
52a35ef7 | 1130 | |
c713ddc0 | 1131 | /* Scan linker driver arguments for things that are of relevance to us. */ |
f31c0018 RG |
1132 | for (j = 1; j < decoded_options_count; ++j) |
1133 | { | |
1134 | struct cl_decoded_option *option = &decoded_options[j]; | |
f31c0018 RG |
1135 | switch (option->opt_index) |
1136 | { | |
1137 | case OPT_o: | |
1138 | linker_output = option->arg; | |
c713ddc0 | 1139 | break; |
f31c0018 RG |
1140 | |
1141 | case OPT_save_temps: | |
608508a6 | 1142 | save_temps = 1; |
f31c0018 RG |
1143 | break; |
1144 | ||
1145 | case OPT_v: | |
cf96bae7 | 1146 | verbose = 1; |
f31c0018 | 1147 | break; |
cf96bae7 | 1148 | |
783dab6b RB |
1149 | case OPT_flto_partition_: |
1150 | if (strcmp (option->arg, "none") == 0) | |
1151 | no_partition = true; | |
f31c0018 RG |
1152 | break; |
1153 | ||
1154 | case OPT_flto_: | |
1155 | if (strcmp (option->arg, "jobserver") == 0) | |
1156 | { | |
1157 | jobserver = 1; | |
1158 | parallel = 1; | |
1159 | } | |
1160 | else | |
1161 | { | |
1162 | parallel = atoi (option->arg); | |
1163 | if (parallel <= 1) | |
1164 | parallel = 0; | |
1165 | } | |
1166 | /* Fallthru. */ | |
1167 | ||
1168 | case OPT_flto: | |
1169 | lto_mode = LTO_MODE_WHOPR; | |
c713ddc0 | 1170 | break; |
8bb50e5c | 1171 | |
f31c0018 RG |
1172 | default: |
1173 | break; | |
1174 | } | |
f31c0018 RG |
1175 | } |
1176 | ||
1ea85365 RB |
1177 | /* Output lto-wrapper invocation command. */ |
1178 | if (verbose) | |
1179 | { | |
1180 | for (i = 0; i < argc; ++i) | |
1181 | { | |
1182 | fputs (argv[i], stderr); | |
1183 | fputc (' ', stderr); | |
1184 | } | |
1185 | fputc ('\n', stderr); | |
1186 | } | |
1187 | ||
014d92e1 JH |
1188 | if (no_partition) |
1189 | { | |
1190 | lto_mode = LTO_MODE_LTO; | |
1191 | jobserver = 0; | |
1192 | parallel = 0; | |
1193 | } | |
cf96bae7 RG |
1194 | |
1195 | if (linker_output) | |
1196 | { | |
1197 | char *output_dir, *base, *name; | |
dd3b31fb | 1198 | bool bit_bucket = strcmp (linker_output, HOST_BIT_BUCKET) == 0; |
d7f09764 | 1199 | |
cf96bae7 RG |
1200 | output_dir = xstrdup (linker_output); |
1201 | base = output_dir; | |
1202 | for (name = base; *name; name++) | |
1203 | if (IS_DIR_SEPARATOR (*name)) | |
1204 | base = name + 1; | |
1205 | *base = '\0'; | |
1206 | ||
1207 | linker_output = &linker_output[base - output_dir]; | |
1208 | if (*output_dir == '\0') | |
1209 | { | |
1210 | static char current_dir[] = { '.', DIR_SEPARATOR, '\0' }; | |
1211 | output_dir = current_dir; | |
1212 | } | |
dd3b31fb L |
1213 | if (!bit_bucket) |
1214 | { | |
ef6f874e RG |
1215 | obstack_ptr_grow (&argv_obstack, "-dumpdir"); |
1216 | obstack_ptr_grow (&argv_obstack, output_dir); | |
dd3b31fb | 1217 | } |
cf96bae7 | 1218 | |
ef6f874e | 1219 | obstack_ptr_grow (&argv_obstack, "-dumpbase"); |
cf96bae7 | 1220 | } |
ef6f874e RG |
1221 | |
1222 | /* Remember at which point we can scrub args to re-use the commons. */ | |
1223 | new_head_argc = obstack_object_size (&argv_obstack) / sizeof (void *); | |
d7f09764 | 1224 | |
fc8b3540 IV |
1225 | if (have_offload) |
1226 | { | |
e6861a99 IV |
1227 | unsigned i, num_offload_files; |
1228 | char **offload_argv; | |
1229 | FILE *f; | |
1230 | ||
1231 | f = fopen (offload_objects_file_name, "r"); | |
1232 | if (f == NULL) | |
1233 | fatal_error (input_location, "cannot open %s: %m", | |
1234 | offload_objects_file_name); | |
1235 | if (fscanf (f, "%u ", &num_offload_files) != 1) | |
1236 | fatal_error (input_location, "cannot read %s: %m", | |
1237 | offload_objects_file_name); | |
1238 | offload_argv = XCNEWVEC (char *, num_offload_files); | |
1239 | ||
1240 | /* Read names of object files with offload. */ | |
1241 | for (i = 0; i < num_offload_files; i++) | |
1242 | { | |
1243 | const unsigned piece = 32; | |
1244 | char *buf, *filename = XNEWVEC (char, piece); | |
1245 | size_t len; | |
1246 | ||
1247 | buf = filename; | |
1248 | cont1: | |
1249 | if (!fgets (buf, piece, f)) | |
1250 | break; | |
1251 | len = strlen (filename); | |
1252 | if (filename[len - 1] != '\n') | |
1253 | { | |
1254 | filename = XRESIZEVEC (char, filename, len + piece); | |
1255 | buf = filename + len; | |
1256 | goto cont1; | |
1257 | } | |
1258 | filename[len - 1] = '\0'; | |
1259 | offload_argv[i] = filename; | |
1260 | } | |
1261 | fclose (f); | |
1262 | if (offload_argv[num_offload_files - 1] == NULL) | |
1263 | fatal_error (input_location, "invalid format of %s", | |
1264 | offload_objects_file_name); | |
1265 | maybe_unlink (offload_objects_file_name); | |
1266 | offload_objects_file_name = NULL; | |
1267 | ||
1268 | /* Look at saved offload options in files. */ | |
1269 | for (i = 0; i < num_offload_files; i++) | |
1270 | { | |
1271 | char *p; | |
1272 | long loffset; | |
1273 | int fd, consumed; | |
1274 | off_t file_offset = 0; | |
1275 | char *filename = offload_argv[i]; | |
1276 | ||
1277 | if ((p = strrchr (offload_argv[i], '@')) | |
1278 | && p != offload_argv[i] | |
1279 | && sscanf (p, "@%li%n", &loffset, &consumed) >= 1 | |
1280 | && strlen (p) == (unsigned int) consumed) | |
1281 | { | |
1282 | filename = XNEWVEC (char, p - offload_argv[i] + 1); | |
1283 | memcpy (filename, offload_argv[i], p - offload_argv[i]); | |
1284 | filename[p - offload_argv[i]] = '\0'; | |
1285 | file_offset = (off_t) loffset; | |
1286 | } | |
1287 | fd = open (filename, O_RDONLY | O_BINARY); | |
1288 | if (fd == -1) | |
1289 | fatal_error (input_location, "cannot open %s: %m", filename); | |
1290 | if (!find_and_merge_options (fd, file_offset, | |
1291 | OFFLOAD_SECTION_NAME_PREFIX, | |
1292 | &offload_fdecoded_options, | |
1293 | &offload_fdecoded_options_count, | |
1294 | collect_gcc)) | |
1295 | fatal_error (input_location, "cannot read %s: %m", filename); | |
1296 | close (fd); | |
1297 | if (filename != offload_argv[i]) | |
1298 | XDELETEVEC (filename); | |
1299 | } | |
1300 | ||
1301 | compile_images_for_offload_targets (num_offload_files, offload_argv, | |
443743fd | 1302 | offload_fdecoded_options, |
c713ddc0 BS |
1303 | offload_fdecoded_options_count, |
1304 | decoded_options, | |
1305 | decoded_options_count); | |
e6861a99 IV |
1306 | |
1307 | free_array_of_ptrs ((void **) offload_argv, num_offload_files); | |
1308 | ||
fc8b3540 IV |
1309 | if (offload_names) |
1310 | { | |
e6861a99 | 1311 | find_crtoffloadtable (); |
fc8b3540 IV |
1312 | for (i = 0; offload_names[i]; i++) |
1313 | printf ("%s\n", offload_names[i]); | |
1314 | free_array_of_ptrs ((void **) offload_names, i); | |
1315 | } | |
1316 | } | |
1317 | ||
fc8b3540 IV |
1318 | /* If object files contain offload sections, but do not contain LTO sections, |
1319 | then there is no need to perform a link-time recompilation, i.e. | |
1320 | lto-wrapper is used only for a compilation of offload images. */ | |
1321 | if (have_offload && !have_lto) | |
e6861a99 | 1322 | goto finish; |
fc8b3540 | 1323 | |
d7f09764 DN |
1324 | if (lto_mode == LTO_MODE_LTO) |
1325 | { | |
1326 | flto_out = make_temp_file (".lto.o"); | |
cf96bae7 | 1327 | if (linker_output) |
ef6f874e RG |
1328 | obstack_ptr_grow (&argv_obstack, linker_output); |
1329 | obstack_ptr_grow (&argv_obstack, "-o"); | |
1330 | obstack_ptr_grow (&argv_obstack, flto_out); | |
d7f09764 | 1331 | } |
be286227 | 1332 | else |
d7f09764 DN |
1333 | { |
1334 | const char *list_option = "-fltrans-output-list="; | |
1335 | size_t list_option_len = strlen (list_option); | |
1336 | char *tmp; | |
1337 | ||
cf96bae7 RG |
1338 | if (linker_output) |
1339 | { | |
1340 | char *dumpbase = (char *) xmalloc (strlen (linker_output) | |
b5611987 | 1341 | + sizeof (".wpa") + 1); |
cf96bae7 RG |
1342 | strcpy (dumpbase, linker_output); |
1343 | strcat (dumpbase, ".wpa"); | |
ef6f874e | 1344 | obstack_ptr_grow (&argv_obstack, dumpbase); |
cf96bae7 RG |
1345 | } |
1346 | ||
608508a6 | 1347 | if (linker_output && save_temps) |
b5611987 RG |
1348 | { |
1349 | ltrans_output_file = (char *) xmalloc (strlen (linker_output) | |
1350 | + sizeof (".ltrans.out") + 1); | |
1351 | strcpy (ltrans_output_file, linker_output); | |
1352 | strcat (ltrans_output_file, ".ltrans.out"); | |
1353 | } | |
1354 | else | |
1355 | ltrans_output_file = make_temp_file (".ltrans.out"); | |
d7f09764 DN |
1356 | list_option_full = (char *) xmalloc (sizeof (char) * |
1357 | (strlen (ltrans_output_file) + list_option_len + 1)); | |
1358 | tmp = list_option_full; | |
1359 | ||
ef6f874e | 1360 | obstack_ptr_grow (&argv_obstack, tmp); |
d7f09764 DN |
1361 | strcpy (tmp, list_option); |
1362 | tmp += list_option_len; | |
1363 | strcpy (tmp, ltrans_output_file); | |
1364 | ||
f300e7b8 JH |
1365 | if (jobserver) |
1366 | obstack_ptr_grow (&argv_obstack, xstrdup ("-fwpa=jobserver")); | |
1367 | else if (parallel > 1) | |
1368 | { | |
1369 | char buf[256]; | |
1370 | sprintf (buf, "-fwpa=%i", parallel); | |
1371 | obstack_ptr_grow (&argv_obstack, xstrdup (buf)); | |
1372 | } | |
1373 | else | |
1374 | obstack_ptr_grow (&argv_obstack, "-fwpa"); | |
d7f09764 | 1375 | } |
d7f09764 | 1376 | |
1ea85365 | 1377 | /* Append input arguments. */ |
443743fd IV |
1378 | for (i = 0; i < lto_argc; ++i) |
1379 | obstack_ptr_grow (&argv_obstack, lto_argv[i]); | |
1ea85365 RB |
1380 | /* Append the input objects. */ |
1381 | for (i = 0; i < ltoobj_argc; ++i) | |
1382 | obstack_ptr_grow (&argv_obstack, ltoobj_argv[i]); | |
ef6f874e | 1383 | obstack_ptr_grow (&argv_obstack, NULL); |
d7f09764 | 1384 | |
ef6f874e RG |
1385 | new_argv = XOBFINISH (&argv_obstack, const char **); |
1386 | argv_ptr = &new_argv[new_head_argc]; | |
5f0ad6a5 | 1387 | fork_execute (new_argv[0], CONST_CAST (char **, new_argv), true); |
48cf395b | 1388 | |
1ea85365 RB |
1389 | /* Handle early generated debug information. At compile-time |
1390 | we output early DWARF debug info into .gnu.debuglto_ prefixed | |
1391 | sections. LTRANS object DWARF debug info refers to that. | |
1392 | So we need to transfer the .gnu.debuglto_ sections to the final | |
1393 | link. Ideally the linker plugin interface would allow us to | |
1394 | not claim those sections and instruct the linker to keep | |
1395 | them, renaming them in the process. For now we extract and | |
1396 | rename those sections via a simple-object interface to produce | |
1397 | regular objects containing only the early debug info. We | |
1398 | then partially link those to a single early debug info object | |
1399 | and pass that as additional output back to the linker plugin. */ | |
1400 | ||
1401 | /* Prepare the partial link to gather the compile-time generated | |
1402 | debug-info into a single input for the final link. */ | |
1403 | debug_obj = make_temp_file ("debugobj"); | |
1404 | obstack_ptr_grow (&argv_obstack, collect_gcc); | |
1405 | for (i = 1; i < decoded_options_count; ++i) | |
1406 | { | |
1407 | /* Retain linker choice and -B. */ | |
1408 | if (decoded_options[i].opt_index == OPT_B | |
1409 | || decoded_options[i].opt_index == OPT_fuse_ld_bfd | |
1410 | || decoded_options[i].opt_index == OPT_fuse_ld_gold) | |
1411 | append_linker_options (&argv_obstack, &decoded_options[i-1], 2); | |
1412 | /* Retain all target options, this preserves -m32 for example. */ | |
1413 | if (cl_options[decoded_options[i].opt_index].flags & CL_TARGET) | |
1414 | append_linker_options (&argv_obstack, &decoded_options[i-1], 2); | |
1415 | /* Recognize -g0. */ | |
1416 | if (decoded_options[i].opt_index == OPT_g | |
1417 | && strcmp (decoded_options[i].arg, "0") == 0) | |
1418 | skip_debug = true; | |
1419 | } | |
1420 | obstack_ptr_grow (&argv_obstack, "-r"); | |
1421 | obstack_ptr_grow (&argv_obstack, "-nostdlib"); | |
1422 | obstack_ptr_grow (&argv_obstack, "-o"); | |
1423 | obstack_ptr_grow (&argv_obstack, debug_obj); | |
1424 | ||
1425 | /* Copy the early generated debug info from the objects to temporary | |
1426 | files and append those to the partial link commandline. */ | |
1427 | n_debugobj = 0; | |
1428 | if (! skip_debug) | |
1429 | for (i = 0; i < ltoobj_argc; ++i) | |
1430 | { | |
1431 | const char *tem; | |
1432 | if ((tem = debug_objcopy (ltoobj_argv[i]))) | |
1433 | { | |
1434 | obstack_ptr_grow (&argv_obstack, tem); | |
1435 | n_debugobj++; | |
1436 | } | |
1437 | } | |
1438 | ||
1439 | /* Link them all into a single object. Ideally this would reduce | |
1440 | disk space usage mainly due to .debug_str merging but unfortunately | |
1441 | GNU ld doesn't perform this with -r. */ | |
1442 | if (n_debugobj) | |
1443 | { | |
1444 | obstack_ptr_grow (&argv_obstack, NULL); | |
1445 | const char **debug_link_argv = XOBFINISH (&argv_obstack, const char **); | |
1446 | fork_execute (debug_link_argv[0], | |
1447 | CONST_CAST (char **, debug_link_argv), false); | |
1448 | ||
1449 | /* And dispose the temporaries. */ | |
1450 | for (i = 0; debug_link_argv[i]; ++i) | |
1451 | ; | |
1452 | for (--i; i > 0; --i) | |
1453 | { | |
1454 | if (strcmp (debug_link_argv[i], debug_obj) == 0) | |
1455 | break; | |
1456 | maybe_unlink (debug_link_argv[i]); | |
1457 | } | |
1458 | } | |
1459 | else | |
1460 | { | |
1461 | unlink_if_ordinary (debug_obj); | |
1462 | free (debug_obj); | |
1463 | debug_obj = NULL; | |
1464 | skip_debug = true; | |
1465 | } | |
1466 | ||
d7f09764 DN |
1467 | if (lto_mode == LTO_MODE_LTO) |
1468 | { | |
c3284718 | 1469 | printf ("%s\n", flto_out); |
1ea85365 RB |
1470 | if (!skip_debug) |
1471 | { | |
1472 | printf ("%s\n", debug_obj); | |
1473 | free (debug_obj); | |
1474 | debug_obj = NULL; | |
1475 | } | |
d7f09764 DN |
1476 | free (flto_out); |
1477 | flto_out = NULL; | |
1478 | } | |
be286227 | 1479 | else |
d7f09764 DN |
1480 | { |
1481 | FILE *stream = fopen (ltrans_output_file, "r"); | |
c04b6b38 | 1482 | FILE *mstream = NULL; |
4559db79 | 1483 | struct obstack env_obstack; |
d7f09764 DN |
1484 | |
1485 | if (!stream) | |
40fecdd6 | 1486 | fatal_error (input_location, "fopen: %s: %m", ltrans_output_file); |
d7f09764 | 1487 | |
50ee30d5 | 1488 | /* Parse the list of LTRANS inputs from the WPA stage. */ |
4559db79 | 1489 | obstack_init (&env_obstack); |
50ee30d5 | 1490 | nr = 0; |
48cf395b RB |
1491 | for (;;) |
1492 | { | |
1493 | const unsigned piece = 32; | |
50ee30d5 | 1494 | char *output_name = NULL; |
48cf395b RB |
1495 | char *buf, *input_name = (char *)xmalloc (piece); |
1496 | size_t len; | |
1497 | ||
1498 | buf = input_name; | |
1499 | cont: | |
1500 | if (!fgets (buf, piece, stream)) | |
1501 | break; | |
1502 | len = strlen (input_name); | |
1503 | if (input_name[len - 1] != '\n') | |
1504 | { | |
1505 | input_name = (char *)xrealloc (input_name, len + piece); | |
1506 | buf = input_name + len; | |
1507 | goto cont; | |
1508 | } | |
1509 | input_name[len - 1] = '\0'; | |
1510 | ||
1511 | if (input_name[0] == '*') | |
c04b6b38 | 1512 | output_name = &input_name[1]; |
48cf395b | 1513 | |
c04b6b38 RG |
1514 | nr++; |
1515 | input_names = (char **)xrealloc (input_names, nr * sizeof (char *)); | |
1516 | output_names = (char **)xrealloc (output_names, nr * sizeof (char *)); | |
1517 | input_names[nr-1] = input_name; | |
1518 | output_names[nr-1] = output_name; | |
1519 | } | |
50ee30d5 | 1520 | fclose (stream); |
a185856a | 1521 | maybe_unlink (ltrans_output_file); |
50ee30d5 RG |
1522 | ltrans_output_file = NULL; |
1523 | ||
1524 | if (parallel) | |
1525 | { | |
1526 | makefile = make_temp_file (".mk"); | |
1527 | mstream = fopen (makefile, "w"); | |
1528 | } | |
1529 | ||
1530 | /* Execute the LTRANS stage for each input file (or prepare a | |
1531 | makefile to invoke this in parallel). */ | |
1532 | for (i = 0; i < nr; ++i) | |
1533 | { | |
1534 | char *output_name; | |
1535 | char *input_name = input_names[i]; | |
1536 | /* If it's a pass-through file do nothing. */ | |
1537 | if (output_names[i]) | |
1538 | continue; | |
1539 | ||
1540 | /* Replace the .o suffix with a .ltrans.o suffix and write | |
1541 | the resulting name to the LTRANS output list. */ | |
50ee30d5 RG |
1542 | obstack_grow (&env_obstack, input_name, strlen (input_name) - 2); |
1543 | obstack_grow (&env_obstack, ".ltrans.o", sizeof (".ltrans.o")); | |
1544 | output_name = XOBFINISH (&env_obstack, char *); | |
1545 | ||
1546 | /* Adjust the dumpbase if the linker output file was seen. */ | |
1547 | if (linker_output) | |
1548 | { | |
1549 | char *dumpbase | |
1550 | = (char *) xmalloc (strlen (linker_output) | |
c3284718 | 1551 | + sizeof (DUMPBASE_SUFFIX) + 1); |
50ee30d5 | 1552 | snprintf (dumpbase, |
c3284718 | 1553 | strlen (linker_output) + sizeof (DUMPBASE_SUFFIX), |
b5611987 | 1554 | "%s.ltrans%u", linker_output, i); |
50ee30d5 RG |
1555 | argv_ptr[0] = dumpbase; |
1556 | } | |
1557 | ||
1558 | argv_ptr[1] = "-fltrans"; | |
1559 | argv_ptr[2] = "-o"; | |
1560 | argv_ptr[3] = output_name; | |
1561 | argv_ptr[4] = input_name; | |
1562 | argv_ptr[5] = NULL; | |
1563 | if (parallel) | |
1564 | { | |
1565 | fprintf (mstream, "%s:\n\t@%s ", output_name, new_argv[0]); | |
1566 | for (j = 1; new_argv[j] != NULL; ++j) | |
1567 | fprintf (mstream, " '%s'", new_argv[j]); | |
1568 | fprintf (mstream, "\n"); | |
9d69847d RG |
1569 | /* If we are not preserving the ltrans input files then |
1570 | truncate them as soon as we have processed it. This | |
1571 | reduces temporary disk-space usage. */ | |
608508a6 | 1572 | if (! save_temps) |
9d69847d RG |
1573 | fprintf (mstream, "\t@-touch -r %s %s.tem > /dev/null 2>&1 " |
1574 | "&& mv %s.tem %s\n", | |
1575 | input_name, input_name, input_name, input_name); | |
50ee30d5 RG |
1576 | } |
1577 | else | |
9d69847d | 1578 | { |
5f0ad6a5 BS |
1579 | fork_execute (new_argv[0], CONST_CAST (char **, new_argv), |
1580 | true); | |
a185856a | 1581 | maybe_unlink (input_name); |
9d69847d | 1582 | } |
50ee30d5 RG |
1583 | |
1584 | output_names[i] = output_name; | |
1585 | } | |
c04b6b38 RG |
1586 | if (parallel) |
1587 | { | |
1588 | struct pex_obj *pex; | |
1589 | char jobs[32]; | |
a478ffff | 1590 | |
c04b6b38 RG |
1591 | fprintf (mstream, "all:"); |
1592 | for (i = 0; i < nr; ++i) | |
1593 | fprintf (mstream, " \\\n\t%s", output_names[i]); | |
1594 | fprintf (mstream, "\n"); | |
1595 | fclose (mstream); | |
a478ffff AK |
1596 | if (!jobserver) |
1597 | { | |
1598 | /* Avoid passing --jobserver-fd= and similar flags | |
1599 | unless jobserver mode is explicitly enabled. */ | |
1600 | putenv (xstrdup ("MAKEFLAGS=")); | |
1601 | putenv (xstrdup ("MFLAGS=")); | |
1602 | } | |
5767217f RW |
1603 | new_argv[0] = getenv ("MAKE"); |
1604 | if (!new_argv[0]) | |
1605 | new_argv[0] = "make"; | |
c04b6b38 RG |
1606 | new_argv[1] = "-f"; |
1607 | new_argv[2] = makefile; | |
a478ffff AK |
1608 | i = 3; |
1609 | if (!jobserver) | |
1610 | { | |
1611 | snprintf (jobs, 31, "-j%d", parallel); | |
1612 | new_argv[i++] = jobs; | |
1613 | } | |
1614 | new_argv[i++] = "all"; | |
1615 | new_argv[i++] = NULL; | |
5f0ad6a5 BS |
1616 | pex = collect_execute (new_argv[0], CONST_CAST (char **, new_argv), |
1617 | NULL, NULL, PEX_SEARCH, false); | |
1618 | do_wait (new_argv[0], pex); | |
a185856a | 1619 | maybe_unlink (makefile); |
50ee30d5 | 1620 | makefile = NULL; |
9d69847d | 1621 | for (i = 0; i < nr; ++i) |
a185856a | 1622 | maybe_unlink (input_names[i]); |
c04b6b38 | 1623 | } |
1ea85365 RB |
1624 | if (!skip_debug) |
1625 | { | |
1626 | printf ("%s\n", debug_obj); | |
1627 | free (debug_obj); | |
1628 | debug_obj = NULL; | |
1629 | } | |
c04b6b38 RG |
1630 | for (i = 0; i < nr; ++i) |
1631 | { | |
1632 | fputs (output_names[i], stdout); | |
48cf395b | 1633 | putc ('\n', stdout); |
c04b6b38 | 1634 | free (input_names[i]); |
48cf395b | 1635 | } |
50ee30d5 | 1636 | nr = 0; |
c04b6b38 RG |
1637 | free (output_names); |
1638 | free (input_names); | |
d7f09764 | 1639 | free (list_option_full); |
4559db79 | 1640 | obstack_free (&env_obstack, NULL); |
d7f09764 | 1641 | } |
ef6f874e | 1642 | |
fc8b3540 | 1643 | finish: |
443743fd | 1644 | XDELETE (lto_argv); |
ef6f874e | 1645 | obstack_free (&argv_obstack, NULL); |
d7f09764 DN |
1646 | } |
1647 | ||
1648 | ||
1649 | /* Entry point. */ | |
1650 | ||
1651 | int | |
1652 | main (int argc, char *argv[]) | |
1653 | { | |
2691e6d7 JM |
1654 | const char *p; |
1655 | ||
de5672fc | 1656 | init_opts_obstack (); |
dc357798 | 1657 | |
2691e6d7 JM |
1658 | p = argv[0] + strlen (argv[0]); |
1659 | while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1])) | |
1660 | --p; | |
1661 | progname = p; | |
1662 | ||
1663 | xmalloc_set_program_name (progname); | |
1664 | ||
d7f09764 DN |
1665 | gcc_init_libintl (); |
1666 | ||
2691e6d7 JM |
1667 | diagnostic_initialize (global_dc, 0); |
1668 | ||
877088b7 | 1669 | if (atexit (lto_wrapper_cleanup) != 0) |
40fecdd6 | 1670 | fatal_error (input_location, "atexit failed"); |
877088b7 | 1671 | |
396717c9 RG |
1672 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) |
1673 | signal (SIGINT, fatal_signal); | |
1674 | #ifdef SIGHUP | |
1675 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
1676 | signal (SIGHUP, fatal_signal); | |
1677 | #endif | |
1678 | if (signal (SIGTERM, SIG_IGN) != SIG_IGN) | |
1679 | signal (SIGTERM, fatal_signal); | |
1680 | #ifdef SIGPIPE | |
1681 | if (signal (SIGPIPE, SIG_IGN) != SIG_IGN) | |
1682 | signal (SIGPIPE, fatal_signal); | |
1683 | #endif | |
1684 | #ifdef SIGCHLD | |
1685 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will | |
1686 | receive the signal. A different setting is inheritable */ | |
1687 | signal (SIGCHLD, SIG_DFL); | |
1688 | #endif | |
1689 | ||
d7f09764 DN |
1690 | /* We may be called with all the arguments stored in some file and |
1691 | passed with @file. Expand them into argv before processing. */ | |
1692 | expandargv (&argc, &argv); | |
f31c0018 | 1693 | |
cf96bae7 | 1694 | run_gcc (argc, argv); |
d7f09764 DN |
1695 | |
1696 | return 0; | |
1697 | } |