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7bfefa9d | 1 | /* Wrapper to call lto. Used by collect2 and the linker plugin. |
8e8f6434 | 2 | Copyright (C) 2009-2018 Free Software Foundation, Inc. |
7bfefa9d | 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 | ||
cbcf2791 | 35 | If WHOPR is used instead, more than one file might be produced |
7bfefa9d | 36 | ./ccXj2DTk.lto.ltrans.o |
37 | ./ccCJuXGv.lto.ltrans.o | |
38 | */ | |
39 | ||
40 | #include "config.h" | |
41 | #include "system.h" | |
960ebfe7 | 42 | #include "coretypes.h" |
7bfefa9d | 43 | #include "intl.h" |
0b4f4daf | 44 | #include "diagnostic.h" |
264cbb51 | 45 | #include "obstack.h" |
00d389c8 | 46 | #include "opts.h" |
47 | #include "options.h" | |
954825c9 | 48 | #include "simple-object.h" |
47131315 | 49 | #include "lto-section-names.h" |
eb9ccb01 | 50 | #include "collect-utils.h" |
7bfefa9d | 51 | |
77415571 | 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 | ||
7bfefa9d | 56 | enum lto_mode_d { |
c8c65e07 | 57 | LTO_MODE_NONE, /* Not doing LTO. */ |
58 | LTO_MODE_LTO, /* Normal LTO. */ | |
59 | LTO_MODE_WHOPR /* WHOPR. */ | |
7bfefa9d | 60 | }; |
61 | ||
62 | /* Current LTO mode. */ | |
63 | static enum lto_mode_d lto_mode = LTO_MODE_NONE; | |
64 | ||
c515f146 | 65 | static char *ltrans_output_file; |
66 | static char *flto_out; | |
4062f557 | 67 | static unsigned int nr; |
747c1878 | 68 | static int *ltrans_priorities; |
4062f557 | 69 | static char **input_names; |
70 | static char **output_names; | |
77415571 | 71 | static char **offload_names; |
e59c8b12 | 72 | static char *offload_objects_file_name; |
4062f557 | 73 | static char *makefile; |
7b53e714 | 74 | static char *debug_obj; |
c515f146 | 75 | |
eb9ccb01 | 76 | const char tool_name[] = "lto-wrapper"; |
c515f146 | 77 | |
eb9ccb01 | 78 | /* Delete tempfiles. Called from utils_cleanup. */ |
c515f146 | 79 | |
eb9ccb01 | 80 | void |
39ef03bb | 81 | tool_cleanup (bool) |
c515f146 | 82 | { |
c04a3a63 | 83 | unsigned int i; |
84 | ||
c04a3a63 | 85 | if (ltrans_output_file) |
eb9ccb01 | 86 | maybe_unlink (ltrans_output_file); |
c04a3a63 | 87 | if (flto_out) |
eb9ccb01 | 88 | maybe_unlink (flto_out); |
e59c8b12 | 89 | if (offload_objects_file_name) |
90 | maybe_unlink (offload_objects_file_name); | |
c04a3a63 | 91 | if (makefile) |
eb9ccb01 | 92 | maybe_unlink (makefile); |
7b53e714 | 93 | if (debug_obj) |
94 | maybe_unlink (debug_obj); | |
c04a3a63 | 95 | for (i = 0; i < nr; ++i) |
3c1d5969 | 96 | { |
eb9ccb01 | 97 | maybe_unlink (input_names[i]); |
c04a3a63 | 98 | if (output_names[i]) |
eb9ccb01 | 99 | maybe_unlink (output_names[i]); |
3c1d5969 | 100 | } |
c04a3a63 | 101 | } |
102 | ||
103 | static void | |
eb9ccb01 | 104 | lto_wrapper_cleanup (void) |
7bfefa9d | 105 | { |
39ef03bb | 106 | utils_cleanup (false); |
7bfefa9d | 107 | } |
108 | ||
7bfefa9d | 109 | /* Unlink a temporary LTRANS file unless requested otherwise. */ |
110 | ||
eb9ccb01 | 111 | void |
112 | maybe_unlink (const char *file) | |
7bfefa9d | 113 | { |
572cae00 | 114 | if (!save_temps) |
7bfefa9d | 115 | { |
411503bd | 116 | if (unlink_if_ordinary (file) |
117 | && errno != ENOENT) | |
c05be867 | 118 | fatal_error (input_location, "deleting LTRANS file %s: %m", file); |
7bfefa9d | 119 | } |
472d4060 | 120 | else if (verbose) |
7bfefa9d | 121 | fprintf (stderr, "[Leaving LTRANS %s]\n", file); |
122 | } | |
123 | ||
264cbb51 | 124 | /* Template of LTRANS dumpbase suffix. */ |
125 | #define DUMPBASE_SUFFIX ".ltrans18446744073709551615" | |
7bfefa9d | 126 | |
00d389c8 | 127 | /* Create decoded options from the COLLECT_GCC and COLLECT_GCC_OPTIONS |
128 | environment according to LANG_MASK. */ | |
129 | ||
130 | static void | |
131 | get_options_from_collect_gcc_options (const char *collect_gcc, | |
132 | const char *collect_gcc_options, | |
133 | unsigned int lang_mask, | |
134 | struct cl_decoded_option **decoded_options, | |
135 | unsigned int *decoded_options_count) | |
136 | { | |
05f1abc2 | 137 | struct obstack argv_obstack; |
00d389c8 | 138 | char *argv_storage; |
139 | const char **argv; | |
05f1abc2 | 140 | int j, k, argc; |
141 | ||
00d389c8 | 142 | argv_storage = xstrdup (collect_gcc_options); |
05f1abc2 | 143 | obstack_init (&argv_obstack); |
144 | obstack_ptr_grow (&argv_obstack, collect_gcc); | |
145 | ||
146 | for (j = 0, k = 0; argv_storage[j] != '\0'; ++j) | |
00d389c8 | 147 | { |
148 | if (argv_storage[j] == '\'') | |
149 | { | |
05f1abc2 | 150 | obstack_ptr_grow (&argv_obstack, &argv_storage[k]); |
151 | ++j; | |
152 | do | |
153 | { | |
154 | if (argv_storage[j] == '\0') | |
c05be867 | 155 | fatal_error (input_location, "malformed COLLECT_GCC_OPTIONS"); |
05f1abc2 | 156 | else if (strncmp (&argv_storage[j], "'\\''", 4) == 0) |
157 | { | |
158 | argv_storage[k++] = '\''; | |
159 | j += 4; | |
160 | } | |
161 | else if (argv_storage[j] == '\'') | |
162 | break; | |
163 | else | |
164 | argv_storage[k++] = argv_storage[j++]; | |
165 | } | |
166 | while (1); | |
167 | argv_storage[k++] = '\0'; | |
00d389c8 | 168 | } |
169 | } | |
05f1abc2 | 170 | |
171 | obstack_ptr_grow (&argv_obstack, NULL); | |
172 | argc = obstack_object_size (&argv_obstack) / sizeof (void *) - 1; | |
173 | argv = XOBFINISH (&argv_obstack, const char **); | |
00d389c8 | 174 | |
175 | decode_cmdline_options_to_array (argc, (const char **)argv, | |
176 | lang_mask, | |
177 | decoded_options, decoded_options_count); | |
05f1abc2 | 178 | obstack_free (&argv_obstack, NULL); |
00d389c8 | 179 | } |
180 | ||
954825c9 | 181 | /* Append OPTION to the options array DECODED_OPTIONS with size |
182 | DECODED_OPTIONS_COUNT. */ | |
183 | ||
184 | static void | |
185 | append_option (struct cl_decoded_option **decoded_options, | |
186 | unsigned int *decoded_options_count, | |
187 | struct cl_decoded_option *option) | |
188 | { | |
189 | ++*decoded_options_count; | |
190 | *decoded_options | |
191 | = (struct cl_decoded_option *) | |
192 | xrealloc (*decoded_options, | |
193 | (*decoded_options_count | |
194 | * sizeof (struct cl_decoded_option))); | |
195 | memcpy (&(*decoded_options)[*decoded_options_count - 1], option, | |
196 | sizeof (struct cl_decoded_option)); | |
197 | } | |
198 | ||
06e0d439 | 199 | /* Remove option number INDEX from DECODED_OPTIONS, update |
200 | DECODED_OPTIONS_COUNT. */ | |
201 | ||
202 | static void | |
203 | remove_option (struct cl_decoded_option **decoded_options, | |
204 | int index, unsigned int *decoded_options_count) | |
205 | { | |
206 | --*decoded_options_count; | |
207 | memmove (&(*decoded_options)[index + 1], | |
208 | &(*decoded_options)[index], | |
209 | sizeof (struct cl_decoded_option) | |
210 | * (*decoded_options_count - index)); | |
211 | } | |
212 | ||
954825c9 | 213 | /* Try to merge and complain about options FDECODED_OPTIONS when applied |
214 | ontop of DECODED_OPTIONS. */ | |
215 | ||
216 | static void | |
217 | merge_and_complain (struct cl_decoded_option **decoded_options, | |
218 | unsigned int *decoded_options_count, | |
219 | struct cl_decoded_option *fdecoded_options, | |
220 | unsigned int fdecoded_options_count) | |
221 | { | |
222 | unsigned int i, j; | |
06e0d439 | 223 | struct cl_decoded_option *pic_option = NULL; |
224 | struct cl_decoded_option *pie_option = NULL; | |
954825c9 | 225 | |
226 | /* ??? Merge options from files. Most cases can be | |
227 | handled by either unioning or intersecting | |
228 | (for example -fwrapv is a case for unioning, | |
229 | -ffast-math is for intersection). Most complaints | |
230 | about real conflicts between different options can | |
231 | be deferred to the compiler proper. Options that | |
232 | we can neither safely handle by intersection nor | |
233 | unioning would need to be complained about here. | |
234 | Ideally we'd have a flag in the opt files that | |
235 | tells whether to union or intersect or reject. | |
236 | In absence of that it's unclear what a good default is. | |
237 | It's also difficult to get positional handling correct. */ | |
238 | ||
239 | /* The following does what the old LTO option code did, | |
240 | union all target and a selected set of common options. */ | |
241 | for (i = 0; i < fdecoded_options_count; ++i) | |
242 | { | |
243 | struct cl_decoded_option *foption = &fdecoded_options[i]; | |
244 | switch (foption->opt_index) | |
245 | { | |
645c2597 | 246 | case OPT_SPECIAL_unknown: |
247 | case OPT_SPECIAL_ignore: | |
248 | case OPT_SPECIAL_program_name: | |
249 | case OPT_SPECIAL_input_file: | |
250 | break; | |
251 | ||
954825c9 | 252 | default: |
253 | if (!(cl_options[foption->opt_index].flags & CL_TARGET)) | |
254 | break; | |
255 | ||
256 | /* Fallthru. */ | |
d50ea280 | 257 | case OPT_fdiagnostics_show_caret: |
258 | case OPT_fdiagnostics_show_option: | |
259 | case OPT_fdiagnostics_show_location_: | |
260 | case OPT_fshow_column: | |
954825c9 | 261 | case OPT_fcommon: |
50f418ca | 262 | case OPT_fgnu_tm: |
954825c9 | 263 | /* Do what the old LTO code did - collect exactly one option |
264 | setting per OPT code, we pick the first we encounter. | |
265 | ??? This doesn't make too much sense, but when it doesn't | |
266 | then we should complain. */ | |
267 | for (j = 0; j < *decoded_options_count; ++j) | |
268 | if ((*decoded_options)[j].opt_index == foption->opt_index) | |
269 | break; | |
270 | if (j == *decoded_options_count) | |
271 | append_option (decoded_options, decoded_options_count, foption); | |
272 | break; | |
940a2ab8 | 273 | |
06e0d439 | 274 | /* Figure out what PIC/PIE level wins and merge the results. */ |
275 | case OPT_fPIC: | |
276 | case OPT_fpic: | |
277 | pic_option = foption; | |
278 | break; | |
279 | case OPT_fPIE: | |
280 | case OPT_fpie: | |
281 | pie_option = foption; | |
282 | break; | |
283 | ||
fa175926 | 284 | case OPT_fopenmp: |
85977647 | 285 | case OPT_fopenacc: |
100c2304 | 286 | case OPT_fcheck_pointer_bounds: |
e38bbd96 | 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); | |
505329dd | 293 | /* -fopenmp > -fno-openmp, |
294 | -fopenacc > -fno-openacc, | |
505329dd | 295 | -fcheck_pointer_bounds > -fcheck_pointer_bounds */ |
e38bbd96 | 296 | else if (foption->value > (*decoded_options)[j].value) |
297 | (*decoded_options)[j] = *foption; | |
298 | break; | |
299 | ||
948eee2f | 300 | case OPT_fopenacc_dim_: |
301 | /* Append or check identical. */ | |
302 | for (j = 0; j < *decoded_options_count; ++j) | |
303 | if ((*decoded_options)[j].opt_index == foption->opt_index) | |
304 | break; | |
305 | if (j == *decoded_options_count) | |
306 | append_option (decoded_options, decoded_options_count, foption); | |
307 | else if (strcmp ((*decoded_options)[j].arg, foption->arg)) | |
308 | fatal_error (input_location, | |
309 | "Option %s with different values", | |
310 | foption->orig_option_with_args_text); | |
311 | break; | |
312 | ||
958d7687 | 313 | case OPT_O: |
314 | case OPT_Ofast: | |
315 | case OPT_Og: | |
316 | case OPT_Os: | |
317 | for (j = 0; j < *decoded_options_count; ++j) | |
318 | if ((*decoded_options)[j].opt_index == OPT_O | |
319 | || (*decoded_options)[j].opt_index == OPT_Ofast | |
320 | || (*decoded_options)[j].opt_index == OPT_Og | |
321 | || (*decoded_options)[j].opt_index == OPT_Os) | |
322 | break; | |
323 | if (j == *decoded_options_count) | |
324 | append_option (decoded_options, decoded_options_count, foption); | |
325 | else if ((*decoded_options)[j].opt_index == foption->opt_index | |
326 | && foption->opt_index != OPT_O) | |
327 | /* Exact same options get merged. */ | |
328 | ; | |
329 | else | |
330 | { | |
331 | /* For mismatched option kinds preserve the optimization | |
332 | level only, thus merge it as -On. This also handles | |
333 | merging of same optimization level -On. */ | |
334 | int level = 0; | |
335 | switch (foption->opt_index) | |
336 | { | |
337 | case OPT_O: | |
338 | if (foption->arg[0] == '\0') | |
339 | level = MAX (level, 1); | |
340 | else | |
341 | level = MAX (level, atoi (foption->arg)); | |
342 | break; | |
343 | case OPT_Ofast: | |
344 | level = MAX (level, 3); | |
345 | break; | |
346 | case OPT_Og: | |
347 | level = MAX (level, 1); | |
348 | break; | |
349 | case OPT_Os: | |
350 | level = MAX (level, 2); | |
351 | break; | |
352 | default: | |
353 | gcc_unreachable (); | |
354 | } | |
355 | switch ((*decoded_options)[j].opt_index) | |
356 | { | |
357 | case OPT_O: | |
358 | if ((*decoded_options)[j].arg[0] == '\0') | |
359 | level = MAX (level, 1); | |
360 | else | |
361 | level = MAX (level, atoi ((*decoded_options)[j].arg)); | |
362 | break; | |
363 | case OPT_Ofast: | |
364 | level = MAX (level, 3); | |
365 | break; | |
366 | case OPT_Og: | |
367 | level = MAX (level, 1); | |
368 | break; | |
369 | case OPT_Os: | |
370 | level = MAX (level, 2); | |
371 | break; | |
372 | default: | |
373 | gcc_unreachable (); | |
374 | } | |
375 | (*decoded_options)[j].opt_index = OPT_O; | |
376 | char *tem; | |
5e9ac72e | 377 | tem = xasprintf ("-O%d", level); |
958d7687 | 378 | (*decoded_options)[j].arg = &tem[2]; |
379 | (*decoded_options)[j].canonical_option[0] = tem; | |
380 | (*decoded_options)[j].value = 1; | |
381 | } | |
382 | break; | |
06e0d439 | 383 | |
384 | ||
385 | case OPT_foffload_abi_: | |
386 | for (j = 0; j < *decoded_options_count; ++j) | |
387 | if ((*decoded_options)[j].opt_index == foption->opt_index) | |
388 | break; | |
389 | if (j == *decoded_options_count) | |
390 | append_option (decoded_options, decoded_options_count, foption); | |
391 | else if (foption->value != (*decoded_options)[j].value) | |
392 | fatal_error (input_location, | |
393 | "Option %s not used consistently in all LTO input" | |
394 | " files", foption->orig_option_with_args_text); | |
395 | break; | |
396 | ||
38e21583 | 397 | |
398 | case OPT_foffload_: | |
399 | append_option (decoded_options, decoded_options_count, foption); | |
400 | break; | |
954825c9 | 401 | } |
402 | } | |
06e0d439 | 403 | |
404 | /* Merge PIC options: | |
405 | -fPIC + -fpic = -fpic | |
406 | -fPIC + -fno-pic = -fno-pic | |
407 | -fpic/-fPIC + nothin = nothing. | |
408 | It is a common mistake to mix few -fPIC compiled objects into otherwise | |
409 | non-PIC code. We do not want to build everything with PIC then. | |
410 | ||
411 | It would be good to warn on mismatches, but it is bit hard to do as | |
412 | we do not know what nothing translates to. */ | |
413 | ||
414 | for (unsigned int j = 0; j < *decoded_options_count;) | |
415 | if ((*decoded_options)[j].opt_index == OPT_fPIC | |
416 | || (*decoded_options)[j].opt_index == OPT_fpic) | |
417 | { | |
418 | if (!pic_option | |
419 | || (pic_option->value > 0) != ((*decoded_options)[j].value > 0)) | |
420 | remove_option (decoded_options, j, decoded_options_count); | |
421 | else if (pic_option->opt_index == OPT_fPIC | |
422 | && (*decoded_options)[j].opt_index == OPT_fpic) | |
423 | { | |
424 | (*decoded_options)[j] = *pic_option; | |
425 | j++; | |
426 | } | |
427 | else | |
428 | j++; | |
429 | } | |
430 | else if ((*decoded_options)[j].opt_index == OPT_fPIE | |
431 | || (*decoded_options)[j].opt_index == OPT_fpie) | |
432 | { | |
433 | if (!pie_option | |
434 | || pie_option->value != (*decoded_options)[j].value) | |
435 | remove_option (decoded_options, j, decoded_options_count); | |
436 | else if (pie_option->opt_index == OPT_fPIE | |
437 | && (*decoded_options)[j].opt_index == OPT_fpie) | |
438 | { | |
439 | (*decoded_options)[j] = *pie_option; | |
440 | j++; | |
441 | } | |
442 | else | |
443 | j++; | |
444 | } | |
445 | else | |
446 | j++; | |
954825c9 | 447 | } |
00d389c8 | 448 | |
77415571 | 449 | /* Auxiliary function that frees elements of PTR and PTR itself. |
450 | N is number of elements to be freed. If PTR is NULL, nothing is freed. | |
451 | If an element is NULL, subsequent elements are not freed. */ | |
452 | ||
453 | static void ** | |
454 | free_array_of_ptrs (void **ptr, unsigned n) | |
455 | { | |
456 | if (!ptr) | |
457 | return NULL; | |
458 | for (unsigned i = 0; i < n; i++) | |
459 | { | |
460 | if (!ptr[i]) | |
461 | break; | |
462 | free (ptr[i]); | |
463 | } | |
464 | free (ptr); | |
465 | return NULL; | |
466 | } | |
467 | ||
468 | /* Parse STR, saving found tokens into PVALUES and return their number. | |
469 | Tokens are assumed to be delimited by ':'. If APPEND is non-null, | |
470 | append it to every token we find. */ | |
471 | ||
472 | static unsigned | |
473 | parse_env_var (const char *str, char ***pvalues, const char *append) | |
474 | { | |
475 | const char *curval, *nextval; | |
476 | char **values; | |
477 | unsigned num = 1, i; | |
478 | ||
479 | curval = strchr (str, ':'); | |
480 | while (curval) | |
481 | { | |
482 | num++; | |
483 | curval = strchr (curval + 1, ':'); | |
484 | } | |
485 | ||
486 | values = (char**) xmalloc (num * sizeof (char*)); | |
487 | curval = str; | |
44ee4fad | 488 | nextval = strchr (curval, ':'); |
489 | if (nextval == NULL) | |
490 | nextval = strchr (curval, '\0'); | |
77415571 | 491 | |
492 | int append_len = append ? strlen (append) : 0; | |
493 | for (i = 0; i < num; i++) | |
494 | { | |
495 | int l = nextval - curval; | |
496 | values[i] = (char*) xmalloc (l + 1 + append_len); | |
497 | memcpy (values[i], curval, l); | |
498 | values[i][l] = 0; | |
499 | if (append) | |
500 | strcat (values[i], append); | |
501 | curval = nextval + 1; | |
44ee4fad | 502 | nextval = strchr (curval, ':'); |
503 | if (nextval == NULL) | |
504 | nextval = strchr (curval, '\0'); | |
77415571 | 505 | } |
506 | *pvalues = values; | |
507 | return num; | |
508 | } | |
509 | ||
38e21583 | 510 | /* Append options OPTS from lto or offload_lto sections to ARGV_OBSTACK. */ |
511 | ||
512 | static void | |
513 | append_compiler_options (obstack *argv_obstack, struct cl_decoded_option *opts, | |
514 | unsigned int count) | |
515 | { | |
516 | /* Append compiler driver arguments as far as they were merged. */ | |
517 | for (unsigned int j = 1; j < count; ++j) | |
518 | { | |
519 | struct cl_decoded_option *option = &opts[j]; | |
520 | ||
521 | /* File options have been properly filtered by lto-opts.c. */ | |
522 | switch (option->opt_index) | |
523 | { | |
524 | /* Drop arguments that we want to take from the link line. */ | |
525 | case OPT_flto_: | |
526 | case OPT_flto: | |
527 | case OPT_flto_partition_: | |
528 | continue; | |
529 | ||
530 | default: | |
531 | break; | |
532 | } | |
533 | ||
534 | /* For now do what the original LTO option code was doing - pass | |
535 | on any CL_TARGET flag and a few selected others. */ | |
536 | switch (option->opt_index) | |
537 | { | |
d50ea280 | 538 | case OPT_fdiagnostics_show_caret: |
539 | case OPT_fdiagnostics_show_option: | |
540 | case OPT_fdiagnostics_show_location_: | |
541 | case OPT_fshow_column: | |
38e21583 | 542 | case OPT_fPIC: |
543 | case OPT_fpic: | |
544 | case OPT_fPIE: | |
545 | case OPT_fpie: | |
546 | case OPT_fcommon: | |
38e21583 | 547 | case OPT_fgnu_tm: |
fa175926 | 548 | case OPT_fopenmp: |
85977647 | 549 | case OPT_fopenacc: |
948eee2f | 550 | case OPT_fopenacc_dim_: |
38e21583 | 551 | case OPT_foffload_abi_: |
552 | case OPT_O: | |
553 | case OPT_Ofast: | |
554 | case OPT_Og: | |
555 | case OPT_Os: | |
100c2304 | 556 | case OPT_fcheck_pointer_bounds: |
38e21583 | 557 | break; |
558 | ||
559 | default: | |
560 | if (!(cl_options[option->opt_index].flags & CL_TARGET)) | |
561 | continue; | |
562 | } | |
563 | ||
564 | /* Pass the option on. */ | |
565 | for (unsigned int i = 0; i < option->canonical_option_num_elements; ++i) | |
566 | obstack_ptr_grow (argv_obstack, option->canonical_option[i]); | |
567 | } | |
568 | } | |
569 | ||
9913e2a6 | 570 | /* Append diag options in OPTS with length COUNT to ARGV_OBSTACK. */ |
571 | ||
572 | static void | |
573 | append_diag_options (obstack *argv_obstack, struct cl_decoded_option *opts, | |
574 | unsigned int count) | |
575 | { | |
576 | /* Append compiler driver arguments as far as they were merged. */ | |
577 | for (unsigned int j = 1; j < count; ++j) | |
578 | { | |
579 | struct cl_decoded_option *option = &opts[j]; | |
580 | ||
581 | switch (option->opt_index) | |
582 | { | |
583 | case OPT_fdiagnostics_color_: | |
584 | case OPT_fdiagnostics_show_caret: | |
585 | case OPT_fdiagnostics_show_option: | |
586 | case OPT_fdiagnostics_show_location_: | |
587 | case OPT_fshow_column: | |
588 | break; | |
589 | default: | |
590 | continue; | |
591 | } | |
592 | ||
593 | /* Pass the option on. */ | |
594 | for (unsigned int i = 0; i < option->canonical_option_num_elements; ++i) | |
595 | obstack_ptr_grow (argv_obstack, option->canonical_option[i]); | |
596 | } | |
597 | } | |
598 | ||
599 | ||
38e21583 | 600 | /* Append linker options OPTS to ARGV_OBSTACK. */ |
601 | ||
602 | static void | |
603 | append_linker_options (obstack *argv_obstack, struct cl_decoded_option *opts, | |
604 | unsigned int count) | |
605 | { | |
606 | /* Append linker driver arguments. Compiler options from the linker | |
607 | driver arguments will override / merge with those from the compiler. */ | |
608 | for (unsigned int j = 1; j < count; ++j) | |
609 | { | |
610 | struct cl_decoded_option *option = &opts[j]; | |
611 | ||
612 | /* Do not pass on frontend specific flags not suitable for lto. */ | |
613 | if (!(cl_options[option->opt_index].flags | |
614 | & (CL_COMMON|CL_TARGET|CL_DRIVER|CL_LTO))) | |
615 | continue; | |
616 | ||
617 | switch (option->opt_index) | |
618 | { | |
619 | case OPT_o: | |
620 | case OPT_flto_: | |
621 | case OPT_flto: | |
622 | /* We've handled these LTO options, do not pass them on. */ | |
623 | continue; | |
624 | ||
105958a9 | 625 | case OPT_fopenmp: |
626 | case OPT_fopenacc: | |
105958a9 | 627 | /* Ignore -fno-XXX form of these options, as otherwise |
628 | corresponding builtins will not be enabled. */ | |
629 | if (option->value == 0) | |
630 | continue; | |
631 | break; | |
632 | ||
38e21583 | 633 | default: |
634 | break; | |
635 | } | |
636 | ||
637 | /* Pass the option on. */ | |
638 | for (unsigned int i = 0; i < option->canonical_option_num_elements; ++i) | |
639 | obstack_ptr_grow (argv_obstack, option->canonical_option[i]); | |
640 | } | |
641 | } | |
642 | ||
643 | /* Extract options for TARGET offload compiler from OPTIONS and append | |
644 | them to ARGV_OBSTACK. */ | |
645 | ||
646 | static void | |
647 | append_offload_options (obstack *argv_obstack, const char *target, | |
648 | struct cl_decoded_option *options, | |
649 | unsigned int options_count) | |
650 | { | |
651 | for (unsigned i = 0; i < options_count; i++) | |
652 | { | |
653 | const char *cur, *next, *opts; | |
654 | char **argv; | |
655 | unsigned argc; | |
656 | struct cl_decoded_option *option = &options[i]; | |
657 | ||
658 | if (option->opt_index != OPT_foffload_) | |
659 | continue; | |
660 | ||
661 | /* If option argument starts with '-' then no target is specified. That | |
662 | means offload options are specified for all targets, so we need to | |
663 | append them. */ | |
664 | if (option->arg[0] == '-') | |
665 | opts = option->arg; | |
666 | else | |
667 | { | |
668 | opts = strchr (option->arg, '='); | |
daa8f58f | 669 | /* If there are offload targets specified, but no actual options, |
670 | there is nothing to do here. */ | |
38e21583 | 671 | if (!opts) |
672 | continue; | |
673 | ||
674 | cur = option->arg; | |
675 | ||
676 | while (cur < opts) | |
677 | { | |
44ee4fad | 678 | next = strchr (cur, ','); |
679 | if (next == NULL) | |
6a892749 | 680 | next = opts; |
38e21583 | 681 | next = (next > opts) ? opts : next; |
682 | ||
daa8f58f | 683 | /* Are we looking for this offload target? */ |
38e21583 | 684 | if (strlen (target) == (size_t) (next - cur) |
685 | && strncmp (target, cur, next - cur) == 0) | |
686 | break; | |
687 | ||
daa8f58f | 688 | /* Skip the comma or equal sign. */ |
38e21583 | 689 | cur = next + 1; |
690 | } | |
691 | ||
692 | if (cur >= opts) | |
693 | continue; | |
694 | ||
695 | opts++; | |
696 | } | |
697 | ||
698 | argv = buildargv (opts); | |
699 | for (argc = 0; argv[argc]; argc++) | |
700 | obstack_ptr_grow (argv_obstack, argv[argc]); | |
701 | } | |
702 | } | |
703 | ||
77415571 | 704 | /* Check whether NAME can be accessed in MODE. This is like access, |
705 | except that it never considers directories to be executable. */ | |
706 | ||
707 | static int | |
708 | access_check (const char *name, int mode) | |
709 | { | |
710 | if (mode == X_OK) | |
711 | { | |
712 | struct stat st; | |
713 | ||
714 | if (stat (name, &st) < 0 | |
715 | || S_ISDIR (st.st_mode)) | |
716 | return -1; | |
717 | } | |
718 | ||
719 | return access (name, mode); | |
720 | } | |
721 | ||
722 | /* Prepare a target image for offload TARGET, using mkoffload tool from | |
723 | COMPILER_PATH. Return the name of the resultant object file. */ | |
724 | ||
725 | static char * | |
726 | compile_offload_image (const char *target, const char *compiler_path, | |
38e21583 | 727 | unsigned in_argc, char *in_argv[], |
728 | struct cl_decoded_option *compiler_opts, | |
729 | unsigned int compiler_opt_count, | |
730 | struct cl_decoded_option *linker_opts, | |
731 | unsigned int linker_opt_count) | |
77415571 | 732 | { |
733 | char *filename = NULL; | |
734 | char **argv; | |
735 | char *suffix | |
736 | = XALLOCAVEC (char, sizeof ("/accel//mkoffload") + strlen (target)); | |
737 | strcpy (suffix, "/accel/"); | |
738 | strcat (suffix, target); | |
739 | strcat (suffix, "/mkoffload"); | |
740 | ||
741 | char **paths = NULL; | |
742 | unsigned n_paths = parse_env_var (compiler_path, &paths, suffix); | |
743 | ||
744 | const char *compiler = NULL; | |
745 | for (unsigned i = 0; i < n_paths; i++) | |
746 | if (access_check (paths[i], X_OK) == 0) | |
747 | { | |
748 | compiler = paths[i]; | |
749 | break; | |
750 | } | |
751 | ||
f6b7f3cf | 752 | if (!compiler) |
753 | fatal_error (input_location, | |
754 | "could not find %s in %s (consider using '-B')\n", suffix + 1, | |
755 | compiler_path); | |
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); | |
763 | if (save_temps) | |
764 | obstack_ptr_grow (&argv_obstack, "-save-temps"); | |
765 | if (verbose) | |
766 | obstack_ptr_grow (&argv_obstack, "-v"); | |
767 | obstack_ptr_grow (&argv_obstack, "-o"); | |
768 | obstack_ptr_grow (&argv_obstack, filename); | |
769 | ||
770 | /* Append names of input object files. */ | |
771 | for (unsigned i = 0; i < in_argc; i++) | |
772 | obstack_ptr_grow (&argv_obstack, in_argv[i]); | |
773 | ||
774 | /* Append options from offload_lto sections. */ | |
775 | append_compiler_options (&argv_obstack, compiler_opts, | |
776 | compiler_opt_count); | |
777 | append_diag_options (&argv_obstack, linker_opts, linker_opt_count); | |
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); | |
787 | argv = XOBFINISH (&argv_obstack, char **); | |
788 | fork_execute (argv[0], argv, true); | |
789 | obstack_free (&argv_obstack, NULL); | |
77415571 | 790 | |
791 | free_array_of_ptrs ((void **) paths, n_paths); | |
792 | return filename; | |
793 | } | |
794 | ||
795 | ||
796 | /* The main routine dealing with offloading. | |
797 | The routine builds a target image for each offload target. IN_ARGC and | |
798 | IN_ARGV specify options and input object files. As all of them could contain | |
799 | target sections, we pass them all to target compilers. */ | |
800 | ||
801 | static void | |
38e21583 | 802 | compile_images_for_offload_targets (unsigned in_argc, char *in_argv[], |
803 | struct cl_decoded_option *compiler_opts, | |
804 | unsigned int compiler_opt_count, | |
805 | struct cl_decoded_option *linker_opts, | |
806 | unsigned int linker_opt_count) | |
77415571 | 807 | { |
808 | char **names = NULL; | |
809 | const char *target_names = getenv (OFFLOAD_TARGET_NAMES_ENV); | |
810 | if (!target_names) | |
811 | return; | |
812 | unsigned num_targets = parse_env_var (target_names, &names, NULL); | |
813 | ||
56686608 | 814 | int next_name_entry = 0; |
77415571 | 815 | const char *compiler_path = getenv ("COMPILER_PATH"); |
816 | if (!compiler_path) | |
817 | goto out; | |
818 | ||
819 | /* Prepare an image for each target and save the name of the resultant object | |
820 | file to the OFFLOAD_NAMES array. It is terminated by a NULL entry. */ | |
821 | offload_names = XCNEWVEC (char *, num_targets + 1); | |
822 | for (unsigned i = 0; i < num_targets; i++) | |
823 | { | |
56686608 | 824 | /* HSA does not use LTO-like streaming and a different compiler, skip |
825 | it. */ | |
826 | if (strcmp (names[i], "hsa") == 0) | |
827 | continue; | |
828 | ||
829 | offload_names[next_name_entry] | |
38e21583 | 830 | = compile_offload_image (names[i], compiler_path, in_argc, in_argv, |
831 | compiler_opts, compiler_opt_count, | |
832 | linker_opts, linker_opt_count); | |
56686608 | 833 | if (!offload_names[next_name_entry]) |
c05be867 | 834 | fatal_error (input_location, |
835 | "problem with building target image for %s\n", names[i]); | |
56686608 | 836 | next_name_entry++; |
77415571 | 837 | } |
838 | ||
839 | out: | |
840 | free_array_of_ptrs ((void **) names, num_targets); | |
841 | } | |
842 | ||
843 | /* Copy a file from SRC to DEST. */ | |
844 | ||
845 | static void | |
846 | copy_file (const char *dest, const char *src) | |
847 | { | |
848 | FILE *d = fopen (dest, "wb"); | |
849 | FILE *s = fopen (src, "rb"); | |
850 | char buffer[512]; | |
851 | while (!feof (s)) | |
852 | { | |
853 | size_t len = fread (buffer, 1, 512, s); | |
854 | if (ferror (s) != 0) | |
c05be867 | 855 | fatal_error (input_location, "reading input file"); |
77415571 | 856 | if (len > 0) |
857 | { | |
858 | fwrite (buffer, 1, len, d); | |
859 | if (ferror (d) != 0) | |
c05be867 | 860 | fatal_error (input_location, "writing output file"); |
77415571 | 861 | } |
862 | } | |
2443f8fd | 863 | fclose (d); |
864 | fclose (s); | |
77415571 | 865 | } |
866 | ||
e59c8b12 | 867 | /* Find the crtoffloadtable.o file in LIBRARY_PATH, make copy and pass name of |
868 | the copy to the linker. */ | |
77415571 | 869 | |
870 | static void | |
e59c8b12 | 871 | find_crtoffloadtable (void) |
77415571 | 872 | { |
873 | char **paths = NULL; | |
874 | const char *library_path = getenv ("LIBRARY_PATH"); | |
875 | if (!library_path) | |
876 | return; | |
e59c8b12 | 877 | unsigned n_paths = parse_env_var (library_path, &paths, "/crtoffloadtable.o"); |
77415571 | 878 | |
879 | unsigned i; | |
880 | for (i = 0; i < n_paths; i++) | |
881 | if (access_check (paths[i], R_OK) == 0) | |
882 | { | |
e59c8b12 | 883 | /* The linker will delete the filename we give it, so make a copy. */ |
884 | char *crtoffloadtable = make_temp_file (".crtoffloadtable.o"); | |
885 | copy_file (crtoffloadtable, paths[i]); | |
886 | printf ("%s\n", crtoffloadtable); | |
887 | XDELETEVEC (crtoffloadtable); | |
77415571 | 888 | break; |
889 | } | |
890 | if (i == n_paths) | |
c05be867 | 891 | fatal_error (input_location, |
e59c8b12 | 892 | "installation error, can't find crtoffloadtable.o"); |
77415571 | 893 | |
894 | free_array_of_ptrs ((void **) paths, n_paths); | |
895 | } | |
896 | ||
38e21583 | 897 | /* A subroutine of run_gcc. Examine the open file FD for lto sections with |
898 | name prefix PREFIX, at FILE_OFFSET, and store any options we find in OPTS | |
899 | and OPT_COUNT. Return true if we found a matchingn section, false | |
900 | otherwise. COLLECT_GCC holds the value of the environment variable with | |
901 | the same name. */ | |
902 | ||
903 | static bool | |
904 | find_and_merge_options (int fd, off_t file_offset, const char *prefix, | |
905 | struct cl_decoded_option **opts, | |
906 | unsigned int *opt_count, const char *collect_gcc) | |
907 | { | |
908 | off_t offset, length; | |
909 | char *data; | |
910 | char *fopts; | |
911 | const char *errmsg; | |
912 | int err; | |
913 | struct cl_decoded_option *fdecoded_options = *opts; | |
914 | unsigned int fdecoded_options_count = *opt_count; | |
915 | ||
916 | simple_object_read *sobj; | |
917 | sobj = simple_object_start_read (fd, file_offset, "__GNU_LTO", | |
918 | &errmsg, &err); | |
919 | if (!sobj) | |
920 | return false; | |
921 | ||
922 | char *secname = XALLOCAVEC (char, strlen (prefix) + sizeof (".opts")); | |
923 | strcpy (secname, prefix); | |
924 | strcat (secname, ".opts"); | |
925 | if (!simple_object_find_section (sobj, secname, &offset, &length, | |
926 | &errmsg, &err)) | |
927 | { | |
928 | simple_object_release_read (sobj); | |
929 | return false; | |
930 | } | |
931 | ||
932 | lseek (fd, file_offset + offset, SEEK_SET); | |
933 | data = (char *)xmalloc (length); | |
934 | read (fd, data, length); | |
935 | fopts = data; | |
936 | do | |
937 | { | |
938 | struct cl_decoded_option *f2decoded_options; | |
939 | unsigned int f2decoded_options_count; | |
940 | get_options_from_collect_gcc_options (collect_gcc, | |
941 | fopts, CL_LANG_ALL, | |
942 | &f2decoded_options, | |
943 | &f2decoded_options_count); | |
944 | if (!fdecoded_options) | |
945 | { | |
946 | fdecoded_options = f2decoded_options; | |
947 | fdecoded_options_count = f2decoded_options_count; | |
948 | } | |
949 | else | |
950 | merge_and_complain (&fdecoded_options, | |
951 | &fdecoded_options_count, | |
952 | f2decoded_options, f2decoded_options_count); | |
953 | ||
954 | fopts += strlen (fopts) + 1; | |
955 | } | |
956 | while (fopts - data < length); | |
957 | ||
958 | free (data); | |
959 | simple_object_release_read (sobj); | |
960 | *opts = fdecoded_options; | |
961 | *opt_count = fdecoded_options_count; | |
962 | return true; | |
963 | } | |
964 | ||
7b53e714 | 965 | /* Copy early debug info sections from INFILE to a new file whose name |
966 | is returned. Return NULL on error. */ | |
967 | ||
968 | const char * | |
5ab17bfb | 969 | debug_objcopy (const char *infile, bool rename) |
7b53e714 | 970 | { |
971 | const char *outfile; | |
972 | const char *errmsg; | |
973 | int err; | |
974 | ||
975 | const char *p; | |
976 | off_t inoff = 0; | |
977 | long loffset; | |
978 | int consumed; | |
979 | if ((p = strrchr (infile, '@')) | |
980 | && p != infile | |
981 | && sscanf (p, "@%li%n", &loffset, &consumed) >= 1 | |
982 | && strlen (p) == (unsigned int) consumed) | |
983 | { | |
984 | char *fname = xstrdup (infile); | |
985 | fname[p - infile] = '\0'; | |
986 | infile = fname; | |
987 | inoff = (off_t) loffset; | |
988 | } | |
b50dd1e4 | 989 | int infd = open (infile, O_RDONLY | O_BINARY); |
7b53e714 | 990 | if (infd == -1) |
991 | return NULL; | |
992 | simple_object_read *inobj = simple_object_start_read (infd, inoff, | |
993 | "__GNU_LTO", | |
994 | &errmsg, &err); | |
995 | if (!inobj) | |
996 | return NULL; | |
997 | ||
998 | off_t off, len; | |
999 | if (simple_object_find_section (inobj, ".gnu.debuglto_.debug_info", | |
1000 | &off, &len, &errmsg, &err) != 1) | |
1001 | { | |
1002 | if (errmsg) | |
1003 | fatal_error (0, "%s: %s\n", errmsg, xstrerror (err)); | |
1004 | ||
1005 | simple_object_release_read (inobj); | |
1006 | close (infd); | |
1007 | return NULL; | |
1008 | } | |
1009 | ||
1010 | outfile = make_temp_file ("debugobjtem"); | |
5ab17bfb | 1011 | errmsg = simple_object_copy_lto_debug_sections (inobj, outfile, &err, rename); |
7b53e714 | 1012 | if (errmsg) |
1013 | { | |
1014 | unlink_if_ordinary (outfile); | |
1015 | fatal_error (0, "%s: %s\n", errmsg, xstrerror (err)); | |
1016 | } | |
1017 | ||
1018 | simple_object_release_read (inobj); | |
1019 | close (infd); | |
1020 | ||
1021 | return outfile; | |
1022 | } | |
1023 | ||
747c1878 | 1024 | /* Helper for qsort: compare priorities for parallel compilation. */ |
1025 | ||
1026 | int | |
1027 | cmp_priority (const void *a, const void *b) | |
1028 | { | |
1029 | return *((const int *)b)-*((const int *)a); | |
1030 | } | |
7b53e714 | 1031 | |
1032 | ||
7bfefa9d | 1033 | /* Execute gcc. ARGC is the number of arguments. ARGV contains the arguments. */ |
1034 | ||
1035 | static void | |
1036 | run_gcc (unsigned argc, char *argv[]) | |
1037 | { | |
c8c65e07 | 1038 | unsigned i, j; |
7bfefa9d | 1039 | const char **new_argv; |
1040 | const char **argv_ptr; | |
7bfefa9d | 1041 | char *list_option_full = NULL; |
c8c65e07 | 1042 | const char *linker_output = NULL; |
00d389c8 | 1043 | const char *collect_gcc, *collect_gcc_options; |
cba6710d | 1044 | int parallel = 0; |
442bd81c | 1045 | int jobserver = 0; |
cbcf2791 | 1046 | bool no_partition = false; |
954825c9 | 1047 | struct cl_decoded_option *fdecoded_options = NULL; |
38e21583 | 1048 | struct cl_decoded_option *offload_fdecoded_options = NULL; |
954825c9 | 1049 | unsigned int fdecoded_options_count = 0; |
38e21583 | 1050 | unsigned int offload_fdecoded_options_count = 0; |
00d389c8 | 1051 | struct cl_decoded_option *decoded_options; |
1052 | unsigned int decoded_options_count; | |
b84346c6 | 1053 | struct obstack argv_obstack; |
1054 | int new_head_argc; | |
77415571 | 1055 | bool have_lto = false; |
1056 | bool have_offload = false; | |
7b53e714 | 1057 | unsigned lto_argc = 0, ltoobj_argc = 0; |
1058 | char **lto_argv, **ltoobj_argv; | |
5ab17bfb | 1059 | bool linker_output_rel = false; |
7b53e714 | 1060 | bool skip_debug = false; |
1061 | unsigned n_debugobj; | |
c8c65e07 | 1062 | |
1063 | /* Get the driver and options. */ | |
1064 | collect_gcc = getenv ("COLLECT_GCC"); | |
1065 | if (!collect_gcc) | |
c05be867 | 1066 | fatal_error (input_location, |
1067 | "environment variable COLLECT_GCC must be set"); | |
c8c65e07 | 1068 | collect_gcc_options = getenv ("COLLECT_GCC_OPTIONS"); |
1069 | if (!collect_gcc_options) | |
c05be867 | 1070 | fatal_error (input_location, |
1071 | "environment variable COLLECT_GCC_OPTIONS must be set"); | |
00d389c8 | 1072 | get_options_from_collect_gcc_options (collect_gcc, collect_gcc_options, |
1073 | CL_LANG_ALL, | |
1074 | &decoded_options, | |
1075 | &decoded_options_count); | |
c8c65e07 | 1076 | |
e59c8b12 | 1077 | /* Allocate array for input object files with LTO IL, |
e02afbb7 | 1078 | and for possible preceding arguments. */ |
1079 | lto_argv = XNEWVEC (char *, argc); | |
7b53e714 | 1080 | ltoobj_argv = XNEWVEC (char *, argc); |
e02afbb7 | 1081 | |
954825c9 | 1082 | /* Look at saved options in the IL files. */ |
1083 | for (i = 1; i < argc; ++i) | |
1084 | { | |
38e21583 | 1085 | char *p; |
954825c9 | 1086 | int fd; |
38e21583 | 1087 | off_t file_offset = 0; |
954825c9 | 1088 | long loffset; |
954825c9 | 1089 | int consumed; |
954825c9 | 1090 | char *filename = argv[i]; |
38e21583 | 1091 | |
e59c8b12 | 1092 | if (strncmp (argv[i], "-foffload-objects=", |
1093 | sizeof ("-foffload-objects=") - 1) == 0) | |
1094 | { | |
1095 | have_offload = true; | |
1096 | offload_objects_file_name | |
1097 | = argv[i] + sizeof ("-foffload-objects=") - 1; | |
1098 | continue; | |
1099 | } | |
1100 | ||
954825c9 | 1101 | if ((p = strrchr (argv[i], '@')) |
1102 | && p != argv[i] | |
1103 | && sscanf (p, "@%li%n", &loffset, &consumed) >= 1 | |
1104 | && strlen (p) == (unsigned int) consumed) | |
1105 | { | |
1106 | filename = XNEWVEC (char, p - argv[i] + 1); | |
1107 | memcpy (filename, argv[i], p - argv[i]); | |
1108 | filename[p - argv[i]] = '\0'; | |
1109 | file_offset = (off_t) loffset; | |
1110 | } | |
0d64e1fb | 1111 | fd = open (filename, O_RDONLY | O_BINARY); |
5ab17bfb | 1112 | /* Linker plugin passes -fresolution and -flinker-output options. |
1113 | -flinker-output is passed only when user did not specify one and thus | |
1114 | we do not need to worry about duplicities with the option handling | |
1115 | below. */ | |
954825c9 | 1116 | if (fd == -1) |
e02afbb7 | 1117 | { |
1118 | lto_argv[lto_argc++] = argv[i]; | |
5ab17bfb | 1119 | if (strcmp (argv[i], "-flinker-output=rel") == 0) |
1120 | linker_output_rel = true; | |
e02afbb7 | 1121 | continue; |
1122 | } | |
1123 | ||
1124 | if (find_and_merge_options (fd, file_offset, LTO_SECTION_NAME_PREFIX, | |
1125 | &fdecoded_options, &fdecoded_options_count, | |
1126 | collect_gcc)) | |
1127 | { | |
1128 | have_lto = true; | |
7b53e714 | 1129 | ltoobj_argv[ltoobj_argc++] = argv[i]; |
e02afbb7 | 1130 | } |
954825c9 | 1131 | close (fd); |
1132 | } | |
1133 | ||
c8c65e07 | 1134 | /* Initalize the common arguments for the driver. */ |
b84346c6 | 1135 | obstack_init (&argv_obstack); |
1136 | obstack_ptr_grow (&argv_obstack, collect_gcc); | |
1137 | obstack_ptr_grow (&argv_obstack, "-xlto"); | |
1138 | obstack_ptr_grow (&argv_obstack, "-c"); | |
954825c9 | 1139 | |
38e21583 | 1140 | append_compiler_options (&argv_obstack, fdecoded_options, |
1141 | fdecoded_options_count); | |
1142 | append_linker_options (&argv_obstack, decoded_options, decoded_options_count); | |
954825c9 | 1143 | |
38e21583 | 1144 | /* Scan linker driver arguments for things that are of relevance to us. */ |
00d389c8 | 1145 | for (j = 1; j < decoded_options_count; ++j) |
1146 | { | |
1147 | struct cl_decoded_option *option = &decoded_options[j]; | |
00d389c8 | 1148 | switch (option->opt_index) |
1149 | { | |
1150 | case OPT_o: | |
1151 | linker_output = option->arg; | |
38e21583 | 1152 | break; |
00d389c8 | 1153 | |
1154 | case OPT_save_temps: | |
572cae00 | 1155 | save_temps = 1; |
00d389c8 | 1156 | break; |
1157 | ||
1158 | case OPT_v: | |
c8c65e07 | 1159 | verbose = 1; |
00d389c8 | 1160 | break; |
c8c65e07 | 1161 | |
4a137074 | 1162 | case OPT_flto_partition_: |
1163 | if (strcmp (option->arg, "none") == 0) | |
1164 | no_partition = true; | |
00d389c8 | 1165 | break; |
1166 | ||
1167 | case OPT_flto_: | |
1168 | if (strcmp (option->arg, "jobserver") == 0) | |
1169 | { | |
1170 | jobserver = 1; | |
1171 | parallel = 1; | |
1172 | } | |
1173 | else | |
1174 | { | |
1175 | parallel = atoi (option->arg); | |
1176 | if (parallel <= 1) | |
1177 | parallel = 0; | |
1178 | } | |
1179 | /* Fallthru. */ | |
1180 | ||
1181 | case OPT_flto: | |
1182 | lto_mode = LTO_MODE_WHOPR; | |
38e21583 | 1183 | break; |
940a2ab8 | 1184 | |
5ab17bfb | 1185 | case OPT_flinker_output_: |
1186 | linker_output_rel = !strcmp (option->arg, "rel"); | |
1187 | break; | |
1188 | ||
1189 | ||
00d389c8 | 1190 | default: |
1191 | break; | |
1192 | } | |
00d389c8 | 1193 | } |
1194 | ||
7b53e714 | 1195 | /* Output lto-wrapper invocation command. */ |
1196 | if (verbose) | |
1197 | { | |
1198 | for (i = 0; i < argc; ++i) | |
1199 | { | |
1200 | fputs (argv[i], stderr); | |
1201 | fputc (' ', stderr); | |
1202 | } | |
1203 | fputc ('\n', stderr); | |
1204 | } | |
1205 | ||
5ab17bfb | 1206 | if (linker_output_rel) |
1207 | no_partition = true; | |
1208 | ||
cbcf2791 | 1209 | if (no_partition) |
1210 | { | |
1211 | lto_mode = LTO_MODE_LTO; | |
1212 | jobserver = 0; | |
1213 | parallel = 0; | |
1214 | } | |
c8c65e07 | 1215 | |
1216 | if (linker_output) | |
1217 | { | |
1218 | char *output_dir, *base, *name; | |
ad905e43 | 1219 | bool bit_bucket = strcmp (linker_output, HOST_BIT_BUCKET) == 0; |
7bfefa9d | 1220 | |
c8c65e07 | 1221 | output_dir = xstrdup (linker_output); |
1222 | base = output_dir; | |
1223 | for (name = base; *name; name++) | |
1224 | if (IS_DIR_SEPARATOR (*name)) | |
1225 | base = name + 1; | |
1226 | *base = '\0'; | |
1227 | ||
1228 | linker_output = &linker_output[base - output_dir]; | |
1229 | if (*output_dir == '\0') | |
1230 | { | |
1231 | static char current_dir[] = { '.', DIR_SEPARATOR, '\0' }; | |
1232 | output_dir = current_dir; | |
1233 | } | |
ad905e43 | 1234 | if (!bit_bucket) |
1235 | { | |
b84346c6 | 1236 | obstack_ptr_grow (&argv_obstack, "-dumpdir"); |
1237 | obstack_ptr_grow (&argv_obstack, output_dir); | |
ad905e43 | 1238 | } |
c8c65e07 | 1239 | |
b84346c6 | 1240 | obstack_ptr_grow (&argv_obstack, "-dumpbase"); |
c8c65e07 | 1241 | } |
b84346c6 | 1242 | |
1243 | /* Remember at which point we can scrub args to re-use the commons. */ | |
1244 | new_head_argc = obstack_object_size (&argv_obstack) / sizeof (void *); | |
7bfefa9d | 1245 | |
77415571 | 1246 | if (have_offload) |
1247 | { | |
e59c8b12 | 1248 | unsigned i, num_offload_files; |
1249 | char **offload_argv; | |
1250 | FILE *f; | |
1251 | ||
1252 | f = fopen (offload_objects_file_name, "r"); | |
1253 | if (f == NULL) | |
1254 | fatal_error (input_location, "cannot open %s: %m", | |
1255 | offload_objects_file_name); | |
1256 | if (fscanf (f, "%u ", &num_offload_files) != 1) | |
1257 | fatal_error (input_location, "cannot read %s: %m", | |
1258 | offload_objects_file_name); | |
1259 | offload_argv = XCNEWVEC (char *, num_offload_files); | |
1260 | ||
1261 | /* Read names of object files with offload. */ | |
1262 | for (i = 0; i < num_offload_files; i++) | |
1263 | { | |
1264 | const unsigned piece = 32; | |
1265 | char *buf, *filename = XNEWVEC (char, piece); | |
1266 | size_t len; | |
1267 | ||
1268 | buf = filename; | |
1269 | cont1: | |
1270 | if (!fgets (buf, piece, f)) | |
1271 | break; | |
1272 | len = strlen (filename); | |
1273 | if (filename[len - 1] != '\n') | |
1274 | { | |
1275 | filename = XRESIZEVEC (char, filename, len + piece); | |
1276 | buf = filename + len; | |
1277 | goto cont1; | |
1278 | } | |
1279 | filename[len - 1] = '\0'; | |
1280 | offload_argv[i] = filename; | |
1281 | } | |
1282 | fclose (f); | |
1283 | if (offload_argv[num_offload_files - 1] == NULL) | |
1284 | fatal_error (input_location, "invalid format of %s", | |
1285 | offload_objects_file_name); | |
1286 | maybe_unlink (offload_objects_file_name); | |
1287 | offload_objects_file_name = NULL; | |
1288 | ||
1289 | /* Look at saved offload options in files. */ | |
1290 | for (i = 0; i < num_offload_files; i++) | |
1291 | { | |
1292 | char *p; | |
1293 | long loffset; | |
1294 | int fd, consumed; | |
1295 | off_t file_offset = 0; | |
1296 | char *filename = offload_argv[i]; | |
1297 | ||
1298 | if ((p = strrchr (offload_argv[i], '@')) | |
1299 | && p != offload_argv[i] | |
1300 | && sscanf (p, "@%li%n", &loffset, &consumed) >= 1 | |
1301 | && strlen (p) == (unsigned int) consumed) | |
1302 | { | |
1303 | filename = XNEWVEC (char, p - offload_argv[i] + 1); | |
1304 | memcpy (filename, offload_argv[i], p - offload_argv[i]); | |
1305 | filename[p - offload_argv[i]] = '\0'; | |
1306 | file_offset = (off_t) loffset; | |
1307 | } | |
1308 | fd = open (filename, O_RDONLY | O_BINARY); | |
1309 | if (fd == -1) | |
1310 | fatal_error (input_location, "cannot open %s: %m", filename); | |
1311 | if (!find_and_merge_options (fd, file_offset, | |
1312 | OFFLOAD_SECTION_NAME_PREFIX, | |
1313 | &offload_fdecoded_options, | |
1314 | &offload_fdecoded_options_count, | |
1315 | collect_gcc)) | |
1316 | fatal_error (input_location, "cannot read %s: %m", filename); | |
1317 | close (fd); | |
1318 | if (filename != offload_argv[i]) | |
1319 | XDELETEVEC (filename); | |
1320 | } | |
1321 | ||
1322 | compile_images_for_offload_targets (num_offload_files, offload_argv, | |
e02afbb7 | 1323 | offload_fdecoded_options, |
38e21583 | 1324 | offload_fdecoded_options_count, |
1325 | decoded_options, | |
1326 | decoded_options_count); | |
e59c8b12 | 1327 | |
1328 | free_array_of_ptrs ((void **) offload_argv, num_offload_files); | |
1329 | ||
77415571 | 1330 | if (offload_names) |
1331 | { | |
e59c8b12 | 1332 | find_crtoffloadtable (); |
77415571 | 1333 | for (i = 0; offload_names[i]; i++) |
1334 | printf ("%s\n", offload_names[i]); | |
1335 | free_array_of_ptrs ((void **) offload_names, i); | |
1336 | } | |
1337 | } | |
1338 | ||
77415571 | 1339 | /* If object files contain offload sections, but do not contain LTO sections, |
1340 | then there is no need to perform a link-time recompilation, i.e. | |
1341 | lto-wrapper is used only for a compilation of offload images. */ | |
1342 | if (have_offload && !have_lto) | |
e59c8b12 | 1343 | goto finish; |
77415571 | 1344 | |
7bfefa9d | 1345 | if (lto_mode == LTO_MODE_LTO) |
1346 | { | |
1347 | flto_out = make_temp_file (".lto.o"); | |
c8c65e07 | 1348 | if (linker_output) |
b84346c6 | 1349 | obstack_ptr_grow (&argv_obstack, linker_output); |
1350 | obstack_ptr_grow (&argv_obstack, "-o"); | |
1351 | obstack_ptr_grow (&argv_obstack, flto_out); | |
7bfefa9d | 1352 | } |
c7d28f13 | 1353 | else |
7bfefa9d | 1354 | { |
1355 | const char *list_option = "-fltrans-output-list="; | |
1356 | size_t list_option_len = strlen (list_option); | |
1357 | char *tmp; | |
1358 | ||
c8c65e07 | 1359 | if (linker_output) |
1360 | { | |
1361 | char *dumpbase = (char *) xmalloc (strlen (linker_output) | |
2024fa7d | 1362 | + sizeof (".wpa") + 1); |
c8c65e07 | 1363 | strcpy (dumpbase, linker_output); |
1364 | strcat (dumpbase, ".wpa"); | |
b84346c6 | 1365 | obstack_ptr_grow (&argv_obstack, dumpbase); |
c8c65e07 | 1366 | } |
1367 | ||
572cae00 | 1368 | if (linker_output && save_temps) |
2024fa7d | 1369 | { |
1370 | ltrans_output_file = (char *) xmalloc (strlen (linker_output) | |
1371 | + sizeof (".ltrans.out") + 1); | |
1372 | strcpy (ltrans_output_file, linker_output); | |
1373 | strcat (ltrans_output_file, ".ltrans.out"); | |
1374 | } | |
1375 | else | |
14ad4d70 | 1376 | { |
1377 | char *prefix = NULL; | |
1378 | if (linker_output) | |
1379 | { | |
1380 | prefix = (char *) xmalloc (strlen (linker_output) + 2); | |
1381 | strcpy (prefix, linker_output); | |
1382 | strcat (prefix, "."); | |
1383 | } | |
1384 | ||
1385 | ltrans_output_file = make_temp_file_with_prefix (prefix, | |
1386 | ".ltrans.out"); | |
1387 | free (prefix); | |
1388 | } | |
7bfefa9d | 1389 | list_option_full = (char *) xmalloc (sizeof (char) * |
1390 | (strlen (ltrans_output_file) + list_option_len + 1)); | |
1391 | tmp = list_option_full; | |
1392 | ||
b84346c6 | 1393 | obstack_ptr_grow (&argv_obstack, tmp); |
7bfefa9d | 1394 | strcpy (tmp, list_option); |
1395 | tmp += list_option_len; | |
1396 | strcpy (tmp, ltrans_output_file); | |
1397 | ||
3e17769e | 1398 | if (jobserver) |
1399 | obstack_ptr_grow (&argv_obstack, xstrdup ("-fwpa=jobserver")); | |
1400 | else if (parallel > 1) | |
1401 | { | |
1402 | char buf[256]; | |
1403 | sprintf (buf, "-fwpa=%i", parallel); | |
1404 | obstack_ptr_grow (&argv_obstack, xstrdup (buf)); | |
1405 | } | |
1406 | else | |
1407 | obstack_ptr_grow (&argv_obstack, "-fwpa"); | |
7bfefa9d | 1408 | } |
7bfefa9d | 1409 | |
7b53e714 | 1410 | /* Append input arguments. */ |
e02afbb7 | 1411 | for (i = 0; i < lto_argc; ++i) |
1412 | obstack_ptr_grow (&argv_obstack, lto_argv[i]); | |
7b53e714 | 1413 | /* Append the input objects. */ |
1414 | for (i = 0; i < ltoobj_argc; ++i) | |
1415 | obstack_ptr_grow (&argv_obstack, ltoobj_argv[i]); | |
b84346c6 | 1416 | obstack_ptr_grow (&argv_obstack, NULL); |
7bfefa9d | 1417 | |
b84346c6 | 1418 | new_argv = XOBFINISH (&argv_obstack, const char **); |
1419 | argv_ptr = &new_argv[new_head_argc]; | |
39ef03bb | 1420 | fork_execute (new_argv[0], CONST_CAST (char **, new_argv), true); |
264cbb51 | 1421 | |
7b53e714 | 1422 | /* Handle early generated debug information. At compile-time |
1423 | we output early DWARF debug info into .gnu.debuglto_ prefixed | |
1424 | sections. LTRANS object DWARF debug info refers to that. | |
1425 | So we need to transfer the .gnu.debuglto_ sections to the final | |
1426 | link. Ideally the linker plugin interface would allow us to | |
1427 | not claim those sections and instruct the linker to keep | |
1428 | them, renaming them in the process. For now we extract and | |
1429 | rename those sections via a simple-object interface to produce | |
1430 | regular objects containing only the early debug info. We | |
1431 | then partially link those to a single early debug info object | |
1432 | and pass that as additional output back to the linker plugin. */ | |
1433 | ||
1434 | /* Prepare the partial link to gather the compile-time generated | |
1435 | debug-info into a single input for the final link. */ | |
1436 | debug_obj = make_temp_file ("debugobj"); | |
1437 | obstack_ptr_grow (&argv_obstack, collect_gcc); | |
1438 | for (i = 1; i < decoded_options_count; ++i) | |
1439 | { | |
1440 | /* Retain linker choice and -B. */ | |
1441 | if (decoded_options[i].opt_index == OPT_B | |
1442 | || decoded_options[i].opt_index == OPT_fuse_ld_bfd | |
1443 | || decoded_options[i].opt_index == OPT_fuse_ld_gold) | |
1444 | append_linker_options (&argv_obstack, &decoded_options[i-1], 2); | |
1445 | /* Retain all target options, this preserves -m32 for example. */ | |
1446 | if (cl_options[decoded_options[i].opt_index].flags & CL_TARGET) | |
1447 | append_linker_options (&argv_obstack, &decoded_options[i-1], 2); | |
1448 | /* Recognize -g0. */ | |
1449 | if (decoded_options[i].opt_index == OPT_g | |
1450 | && strcmp (decoded_options[i].arg, "0") == 0) | |
1451 | skip_debug = true; | |
1452 | } | |
1453 | obstack_ptr_grow (&argv_obstack, "-r"); | |
1454 | obstack_ptr_grow (&argv_obstack, "-nostdlib"); | |
1455 | obstack_ptr_grow (&argv_obstack, "-o"); | |
1456 | obstack_ptr_grow (&argv_obstack, debug_obj); | |
1457 | ||
1458 | /* Copy the early generated debug info from the objects to temporary | |
1459 | files and append those to the partial link commandline. */ | |
1460 | n_debugobj = 0; | |
1461 | if (! skip_debug) | |
1462 | for (i = 0; i < ltoobj_argc; ++i) | |
1463 | { | |
1464 | const char *tem; | |
5ab17bfb | 1465 | if ((tem = debug_objcopy (ltoobj_argv[i], !linker_output_rel))) |
7b53e714 | 1466 | { |
1467 | obstack_ptr_grow (&argv_obstack, tem); | |
1468 | n_debugobj++; | |
1469 | } | |
1470 | } | |
1471 | ||
1472 | /* Link them all into a single object. Ideally this would reduce | |
1473 | disk space usage mainly due to .debug_str merging but unfortunately | |
1474 | GNU ld doesn't perform this with -r. */ | |
1475 | if (n_debugobj) | |
1476 | { | |
1477 | obstack_ptr_grow (&argv_obstack, NULL); | |
1478 | const char **debug_link_argv = XOBFINISH (&argv_obstack, const char **); | |
1479 | fork_execute (debug_link_argv[0], | |
1480 | CONST_CAST (char **, debug_link_argv), false); | |
1481 | ||
1482 | /* And dispose the temporaries. */ | |
1483 | for (i = 0; debug_link_argv[i]; ++i) | |
1484 | ; | |
1485 | for (--i; i > 0; --i) | |
1486 | { | |
1487 | if (strcmp (debug_link_argv[i], debug_obj) == 0) | |
1488 | break; | |
1489 | maybe_unlink (debug_link_argv[i]); | |
1490 | } | |
1491 | } | |
1492 | else | |
1493 | { | |
1494 | unlink_if_ordinary (debug_obj); | |
1495 | free (debug_obj); | |
1496 | debug_obj = NULL; | |
1497 | skip_debug = true; | |
1498 | } | |
1499 | ||
7bfefa9d | 1500 | if (lto_mode == LTO_MODE_LTO) |
1501 | { | |
9af5ce0c | 1502 | printf ("%s\n", flto_out); |
7b53e714 | 1503 | if (!skip_debug) |
1504 | { | |
1505 | printf ("%s\n", debug_obj); | |
1506 | free (debug_obj); | |
1507 | debug_obj = NULL; | |
1508 | } | |
7bfefa9d | 1509 | free (flto_out); |
1510 | flto_out = NULL; | |
1511 | } | |
c7d28f13 | 1512 | else |
7bfefa9d | 1513 | { |
1514 | FILE *stream = fopen (ltrans_output_file, "r"); | |
cba6710d | 1515 | FILE *mstream = NULL; |
eefcf076 | 1516 | struct obstack env_obstack; |
747c1878 | 1517 | int priority; |
7bfefa9d | 1518 | |
1519 | if (!stream) | |
c05be867 | 1520 | fatal_error (input_location, "fopen: %s: %m", ltrans_output_file); |
7bfefa9d | 1521 | |
4062f557 | 1522 | /* Parse the list of LTRANS inputs from the WPA stage. */ |
eefcf076 | 1523 | obstack_init (&env_obstack); |
4062f557 | 1524 | nr = 0; |
264cbb51 | 1525 | for (;;) |
1526 | { | |
1527 | const unsigned piece = 32; | |
4062f557 | 1528 | char *output_name = NULL; |
264cbb51 | 1529 | char *buf, *input_name = (char *)xmalloc (piece); |
1530 | size_t len; | |
1531 | ||
1532 | buf = input_name; | |
747c1878 | 1533 | if (fscanf (stream, "%i\n", &priority) != 1) |
1534 | { | |
1535 | if (!feof (stream)) | |
1536 | fatal_error (input_location, | |
1537 | "Corrupted ltrans output file %s", | |
1538 | ltrans_output_file); | |
1539 | break; | |
1540 | } | |
264cbb51 | 1541 | cont: |
1542 | if (!fgets (buf, piece, stream)) | |
1543 | break; | |
1544 | len = strlen (input_name); | |
1545 | if (input_name[len - 1] != '\n') | |
1546 | { | |
1547 | input_name = (char *)xrealloc (input_name, len + piece); | |
1548 | buf = input_name + len; | |
1549 | goto cont; | |
1550 | } | |
1551 | input_name[len - 1] = '\0'; | |
1552 | ||
1553 | if (input_name[0] == '*') | |
cba6710d | 1554 | output_name = &input_name[1]; |
264cbb51 | 1555 | |
cba6710d | 1556 | nr++; |
747c1878 | 1557 | ltrans_priorities |
1558 | = (int *)xrealloc (ltrans_priorities, nr * sizeof (int) * 2); | |
cba6710d | 1559 | input_names = (char **)xrealloc (input_names, nr * sizeof (char *)); |
1560 | output_names = (char **)xrealloc (output_names, nr * sizeof (char *)); | |
747c1878 | 1561 | ltrans_priorities[(nr-1)*2] = priority; |
1562 | ltrans_priorities[(nr-1)*2+1] = nr-1; | |
cba6710d | 1563 | input_names[nr-1] = input_name; |
1564 | output_names[nr-1] = output_name; | |
1565 | } | |
4062f557 | 1566 | fclose (stream); |
eb9ccb01 | 1567 | maybe_unlink (ltrans_output_file); |
4062f557 | 1568 | ltrans_output_file = NULL; |
1569 | ||
1570 | if (parallel) | |
1571 | { | |
1572 | makefile = make_temp_file (".mk"); | |
1573 | mstream = fopen (makefile, "w"); | |
747c1878 | 1574 | qsort (ltrans_priorities, nr, sizeof (int) * 2, cmp_priority); |
4062f557 | 1575 | } |
1576 | ||
1577 | /* Execute the LTRANS stage for each input file (or prepare a | |
1578 | makefile to invoke this in parallel). */ | |
1579 | for (i = 0; i < nr; ++i) | |
1580 | { | |
1581 | char *output_name; | |
1582 | char *input_name = input_names[i]; | |
1583 | /* If it's a pass-through file do nothing. */ | |
1584 | if (output_names[i]) | |
1585 | continue; | |
1586 | ||
1587 | /* Replace the .o suffix with a .ltrans.o suffix and write | |
1588 | the resulting name to the LTRANS output list. */ | |
4062f557 | 1589 | obstack_grow (&env_obstack, input_name, strlen (input_name) - 2); |
1590 | obstack_grow (&env_obstack, ".ltrans.o", sizeof (".ltrans.o")); | |
1591 | output_name = XOBFINISH (&env_obstack, char *); | |
1592 | ||
1593 | /* Adjust the dumpbase if the linker output file was seen. */ | |
1594 | if (linker_output) | |
1595 | { | |
1596 | char *dumpbase | |
1597 | = (char *) xmalloc (strlen (linker_output) | |
9af5ce0c | 1598 | + sizeof (DUMPBASE_SUFFIX) + 1); |
4062f557 | 1599 | snprintf (dumpbase, |
9af5ce0c | 1600 | strlen (linker_output) + sizeof (DUMPBASE_SUFFIX), |
2024fa7d | 1601 | "%s.ltrans%u", linker_output, i); |
4062f557 | 1602 | argv_ptr[0] = dumpbase; |
1603 | } | |
1604 | ||
1605 | argv_ptr[1] = "-fltrans"; | |
1606 | argv_ptr[2] = "-o"; | |
1607 | argv_ptr[3] = output_name; | |
1608 | argv_ptr[4] = input_name; | |
1609 | argv_ptr[5] = NULL; | |
1610 | if (parallel) | |
1611 | { | |
1612 | fprintf (mstream, "%s:\n\t@%s ", output_name, new_argv[0]); | |
1613 | for (j = 1; new_argv[j] != NULL; ++j) | |
1614 | fprintf (mstream, " '%s'", new_argv[j]); | |
1615 | fprintf (mstream, "\n"); | |
4fe86c66 | 1616 | /* If we are not preserving the ltrans input files then |
1617 | truncate them as soon as we have processed it. This | |
1618 | reduces temporary disk-space usage. */ | |
572cae00 | 1619 | if (! save_temps) |
4fe86c66 | 1620 | fprintf (mstream, "\t@-touch -r %s %s.tem > /dev/null 2>&1 " |
1621 | "&& mv %s.tem %s\n", | |
1622 | input_name, input_name, input_name, input_name); | |
4062f557 | 1623 | } |
1624 | else | |
4fe86c66 | 1625 | { |
39ef03bb | 1626 | fork_execute (new_argv[0], CONST_CAST (char **, new_argv), |
1627 | true); | |
eb9ccb01 | 1628 | maybe_unlink (input_name); |
4fe86c66 | 1629 | } |
4062f557 | 1630 | |
1631 | output_names[i] = output_name; | |
1632 | } | |
cba6710d | 1633 | if (parallel) |
1634 | { | |
1635 | struct pex_obj *pex; | |
1636 | char jobs[32]; | |
442bd81c | 1637 | |
cba6710d | 1638 | fprintf (mstream, "all:"); |
1639 | for (i = 0; i < nr; ++i) | |
747c1878 | 1640 | { |
1641 | int j = ltrans_priorities[i*2 + 1]; | |
1642 | fprintf (mstream, " \\\n\t%s", output_names[j]); | |
1643 | } | |
cba6710d | 1644 | fprintf (mstream, "\n"); |
1645 | fclose (mstream); | |
442bd81c | 1646 | if (!jobserver) |
1647 | { | |
1648 | /* Avoid passing --jobserver-fd= and similar flags | |
1649 | unless jobserver mode is explicitly enabled. */ | |
1650 | putenv (xstrdup ("MAKEFLAGS=")); | |
1651 | putenv (xstrdup ("MFLAGS=")); | |
1652 | } | |
c335b5fe | 1653 | new_argv[0] = getenv ("MAKE"); |
1654 | if (!new_argv[0]) | |
1655 | new_argv[0] = "make"; | |
cba6710d | 1656 | new_argv[1] = "-f"; |
1657 | new_argv[2] = makefile; | |
442bd81c | 1658 | i = 3; |
1659 | if (!jobserver) | |
1660 | { | |
1661 | snprintf (jobs, 31, "-j%d", parallel); | |
1662 | new_argv[i++] = jobs; | |
1663 | } | |
1664 | new_argv[i++] = "all"; | |
1665 | new_argv[i++] = NULL; | |
39ef03bb | 1666 | pex = collect_execute (new_argv[0], CONST_CAST (char **, new_argv), |
1667 | NULL, NULL, PEX_SEARCH, false); | |
1668 | do_wait (new_argv[0], pex); | |
eb9ccb01 | 1669 | maybe_unlink (makefile); |
4062f557 | 1670 | makefile = NULL; |
4fe86c66 | 1671 | for (i = 0; i < nr; ++i) |
eb9ccb01 | 1672 | maybe_unlink (input_names[i]); |
cba6710d | 1673 | } |
7b53e714 | 1674 | if (!skip_debug) |
1675 | { | |
1676 | printf ("%s\n", debug_obj); | |
1677 | free (debug_obj); | |
1678 | debug_obj = NULL; | |
1679 | } | |
cba6710d | 1680 | for (i = 0; i < nr; ++i) |
1681 | { | |
1682 | fputs (output_names[i], stdout); | |
264cbb51 | 1683 | putc ('\n', stdout); |
cba6710d | 1684 | free (input_names[i]); |
264cbb51 | 1685 | } |
4062f557 | 1686 | nr = 0; |
747c1878 | 1687 | free (ltrans_priorities); |
cba6710d | 1688 | free (output_names); |
1689 | free (input_names); | |
7bfefa9d | 1690 | free (list_option_full); |
eefcf076 | 1691 | obstack_free (&env_obstack, NULL); |
7bfefa9d | 1692 | } |
b84346c6 | 1693 | |
77415571 | 1694 | finish: |
e02afbb7 | 1695 | XDELETE (lto_argv); |
b84346c6 | 1696 | obstack_free (&argv_obstack, NULL); |
7bfefa9d | 1697 | } |
1698 | ||
1699 | ||
1700 | /* Entry point. */ | |
1701 | ||
1702 | int | |
1703 | main (int argc, char *argv[]) | |
1704 | { | |
0b4f4daf | 1705 | const char *p; |
1706 | ||
25faed34 | 1707 | init_opts_obstack (); |
ba30d337 | 1708 | |
0b4f4daf | 1709 | p = argv[0] + strlen (argv[0]); |
1710 | while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1])) | |
1711 | --p; | |
1712 | progname = p; | |
1713 | ||
1714 | xmalloc_set_program_name (progname); | |
1715 | ||
7bfefa9d | 1716 | gcc_init_libintl (); |
1717 | ||
0b4f4daf | 1718 | diagnostic_initialize (global_dc, 0); |
1719 | ||
bb7acc76 | 1720 | if (atexit (lto_wrapper_cleanup) != 0) |
c05be867 | 1721 | fatal_error (input_location, "atexit failed"); |
bb7acc76 | 1722 | |
c04a3a63 | 1723 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) |
1724 | signal (SIGINT, fatal_signal); | |
1725 | #ifdef SIGHUP | |
1726 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
1727 | signal (SIGHUP, fatal_signal); | |
1728 | #endif | |
1729 | if (signal (SIGTERM, SIG_IGN) != SIG_IGN) | |
1730 | signal (SIGTERM, fatal_signal); | |
1731 | #ifdef SIGPIPE | |
1732 | if (signal (SIGPIPE, SIG_IGN) != SIG_IGN) | |
1733 | signal (SIGPIPE, fatal_signal); | |
1734 | #endif | |
1735 | #ifdef SIGCHLD | |
1736 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will | |
1737 | receive the signal. A different setting is inheritable */ | |
1738 | signal (SIGCHLD, SIG_DFL); | |
1739 | #endif | |
1740 | ||
7bfefa9d | 1741 | /* We may be called with all the arguments stored in some file and |
1742 | passed with @file. Expand them into argv before processing. */ | |
1743 | expandargv (&argc, &argv); | |
00d389c8 | 1744 | |
c8c65e07 | 1745 | run_gcc (argc, argv); |
7bfefa9d | 1746 | |
1747 | return 0; | |
1748 | } |