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7bfefa9d | 1 | /* Wrapper to call lto. Used by collect2 and the linker plugin. |
fbd26352 | 2 | Copyright (C) 2009-2019 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; |
6dc407e1 | 74 | static unsigned int num_deb_objs; |
75 | static const char **early_debug_object_names; | |
c515f146 | 76 | |
eb9ccb01 | 77 | const char tool_name[] = "lto-wrapper"; |
c515f146 | 78 | |
eb9ccb01 | 79 | /* Delete tempfiles. Called from utils_cleanup. */ |
c515f146 | 80 | |
eb9ccb01 | 81 | void |
39ef03bb | 82 | tool_cleanup (bool) |
c515f146 | 83 | { |
c04a3a63 | 84 | unsigned int i; |
85 | ||
c04a3a63 | 86 | if (ltrans_output_file) |
eb9ccb01 | 87 | maybe_unlink (ltrans_output_file); |
c04a3a63 | 88 | if (flto_out) |
eb9ccb01 | 89 | maybe_unlink (flto_out); |
e59c8b12 | 90 | if (offload_objects_file_name) |
91 | maybe_unlink (offload_objects_file_name); | |
c04a3a63 | 92 | if (makefile) |
eb9ccb01 | 93 | maybe_unlink (makefile); |
6dc407e1 | 94 | if (early_debug_object_names) |
95 | for (i = 0; i < num_deb_objs; ++i) | |
96 | if (early_debug_object_names[i]) | |
97 | maybe_unlink (early_debug_object_names[i]); | |
c04a3a63 | 98 | for (i = 0; i < nr; ++i) |
3c1d5969 | 99 | { |
eb9ccb01 | 100 | maybe_unlink (input_names[i]); |
c04a3a63 | 101 | if (output_names[i]) |
eb9ccb01 | 102 | maybe_unlink (output_names[i]); |
3c1d5969 | 103 | } |
c04a3a63 | 104 | } |
105 | ||
106 | static void | |
eb9ccb01 | 107 | lto_wrapper_cleanup (void) |
7bfefa9d | 108 | { |
39ef03bb | 109 | utils_cleanup (false); |
7bfefa9d | 110 | } |
111 | ||
7bfefa9d | 112 | /* Unlink a temporary LTRANS file unless requested otherwise. */ |
113 | ||
eb9ccb01 | 114 | void |
115 | maybe_unlink (const char *file) | |
7bfefa9d | 116 | { |
572cae00 | 117 | if (!save_temps) |
7bfefa9d | 118 | { |
411503bd | 119 | if (unlink_if_ordinary (file) |
120 | && errno != ENOENT) | |
c05be867 | 121 | fatal_error (input_location, "deleting LTRANS file %s: %m", file); |
7bfefa9d | 122 | } |
472d4060 | 123 | else if (verbose) |
7bfefa9d | 124 | fprintf (stderr, "[Leaving LTRANS %s]\n", file); |
125 | } | |
126 | ||
264cbb51 | 127 | /* Template of LTRANS dumpbase suffix. */ |
128 | #define DUMPBASE_SUFFIX ".ltrans18446744073709551615" | |
7bfefa9d | 129 | |
00d389c8 | 130 | /* Create decoded options from the COLLECT_GCC and COLLECT_GCC_OPTIONS |
131 | environment according to LANG_MASK. */ | |
132 | ||
133 | static void | |
134 | get_options_from_collect_gcc_options (const char *collect_gcc, | |
135 | const char *collect_gcc_options, | |
136 | unsigned int lang_mask, | |
137 | struct cl_decoded_option **decoded_options, | |
138 | unsigned int *decoded_options_count) | |
139 | { | |
05f1abc2 | 140 | struct obstack argv_obstack; |
00d389c8 | 141 | char *argv_storage; |
142 | const char **argv; | |
05f1abc2 | 143 | int j, k, argc; |
144 | ||
00d389c8 | 145 | argv_storage = xstrdup (collect_gcc_options); |
05f1abc2 | 146 | obstack_init (&argv_obstack); |
147 | obstack_ptr_grow (&argv_obstack, collect_gcc); | |
148 | ||
149 | for (j = 0, k = 0; argv_storage[j] != '\0'; ++j) | |
00d389c8 | 150 | { |
151 | if (argv_storage[j] == '\'') | |
152 | { | |
05f1abc2 | 153 | obstack_ptr_grow (&argv_obstack, &argv_storage[k]); |
154 | ++j; | |
155 | do | |
156 | { | |
157 | if (argv_storage[j] == '\0') | |
c05be867 | 158 | fatal_error (input_location, "malformed COLLECT_GCC_OPTIONS"); |
05f1abc2 | 159 | else if (strncmp (&argv_storage[j], "'\\''", 4) == 0) |
160 | { | |
161 | argv_storage[k++] = '\''; | |
162 | j += 4; | |
163 | } | |
164 | else if (argv_storage[j] == '\'') | |
165 | break; | |
166 | else | |
167 | argv_storage[k++] = argv_storage[j++]; | |
168 | } | |
169 | while (1); | |
170 | argv_storage[k++] = '\0'; | |
00d389c8 | 171 | } |
172 | } | |
05f1abc2 | 173 | |
174 | obstack_ptr_grow (&argv_obstack, NULL); | |
175 | argc = obstack_object_size (&argv_obstack) / sizeof (void *) - 1; | |
176 | argv = XOBFINISH (&argv_obstack, const char **); | |
00d389c8 | 177 | |
178 | decode_cmdline_options_to_array (argc, (const char **)argv, | |
179 | lang_mask, | |
180 | decoded_options, decoded_options_count); | |
05f1abc2 | 181 | obstack_free (&argv_obstack, NULL); |
00d389c8 | 182 | } |
183 | ||
954825c9 | 184 | /* Append OPTION to the options array DECODED_OPTIONS with size |
185 | DECODED_OPTIONS_COUNT. */ | |
186 | ||
187 | static void | |
188 | append_option (struct cl_decoded_option **decoded_options, | |
189 | unsigned int *decoded_options_count, | |
190 | struct cl_decoded_option *option) | |
191 | { | |
192 | ++*decoded_options_count; | |
193 | *decoded_options | |
194 | = (struct cl_decoded_option *) | |
195 | xrealloc (*decoded_options, | |
196 | (*decoded_options_count | |
197 | * sizeof (struct cl_decoded_option))); | |
198 | memcpy (&(*decoded_options)[*decoded_options_count - 1], option, | |
199 | sizeof (struct cl_decoded_option)); | |
200 | } | |
201 | ||
06e0d439 | 202 | /* Remove option number INDEX from DECODED_OPTIONS, update |
203 | DECODED_OPTIONS_COUNT. */ | |
204 | ||
205 | static void | |
206 | remove_option (struct cl_decoded_option **decoded_options, | |
207 | int index, unsigned int *decoded_options_count) | |
208 | { | |
209 | --*decoded_options_count; | |
210 | memmove (&(*decoded_options)[index + 1], | |
211 | &(*decoded_options)[index], | |
212 | sizeof (struct cl_decoded_option) | |
213 | * (*decoded_options_count - index)); | |
214 | } | |
215 | ||
954825c9 | 216 | /* Try to merge and complain about options FDECODED_OPTIONS when applied |
217 | ontop of DECODED_OPTIONS. */ | |
218 | ||
219 | static void | |
220 | merge_and_complain (struct cl_decoded_option **decoded_options, | |
221 | unsigned int *decoded_options_count, | |
222 | struct cl_decoded_option *fdecoded_options, | |
223 | unsigned int fdecoded_options_count) | |
224 | { | |
225 | unsigned int i, j; | |
06e0d439 | 226 | struct cl_decoded_option *pic_option = NULL; |
227 | struct cl_decoded_option *pie_option = NULL; | |
954825c9 | 228 | |
229 | /* ??? Merge options from files. Most cases can be | |
230 | handled by either unioning or intersecting | |
231 | (for example -fwrapv is a case for unioning, | |
232 | -ffast-math is for intersection). Most complaints | |
233 | about real conflicts between different options can | |
234 | be deferred to the compiler proper. Options that | |
235 | we can neither safely handle by intersection nor | |
236 | unioning would need to be complained about here. | |
237 | Ideally we'd have a flag in the opt files that | |
238 | tells whether to union or intersect or reject. | |
239 | In absence of that it's unclear what a good default is. | |
240 | It's also difficult to get positional handling correct. */ | |
241 | ||
242 | /* The following does what the old LTO option code did, | |
243 | union all target and a selected set of common options. */ | |
244 | for (i = 0; i < fdecoded_options_count; ++i) | |
245 | { | |
246 | struct cl_decoded_option *foption = &fdecoded_options[i]; | |
247 | switch (foption->opt_index) | |
248 | { | |
645c2597 | 249 | case OPT_SPECIAL_unknown: |
250 | case OPT_SPECIAL_ignore: | |
0c46a085 | 251 | case OPT_SPECIAL_deprecated: |
645c2597 | 252 | case OPT_SPECIAL_program_name: |
253 | case OPT_SPECIAL_input_file: | |
254 | break; | |
255 | ||
954825c9 | 256 | default: |
257 | if (!(cl_options[foption->opt_index].flags & CL_TARGET)) | |
258 | break; | |
259 | ||
260 | /* Fallthru. */ | |
d50ea280 | 261 | case OPT_fdiagnostics_show_caret: |
b7bb5264 | 262 | case OPT_fdiagnostics_show_labels: |
ff7410b8 | 263 | case OPT_fdiagnostics_show_line_numbers: |
d50ea280 | 264 | case OPT_fdiagnostics_show_option: |
265 | case OPT_fdiagnostics_show_location_: | |
266 | case OPT_fshow_column: | |
954825c9 | 267 | case OPT_fcommon: |
50f418ca | 268 | case OPT_fgnu_tm: |
954825c9 | 269 | /* Do what the old LTO code did - collect exactly one option |
270 | setting per OPT code, we pick the first we encounter. | |
271 | ??? This doesn't make too much sense, but when it doesn't | |
272 | then we should complain. */ | |
273 | for (j = 0; j < *decoded_options_count; ++j) | |
274 | if ((*decoded_options)[j].opt_index == foption->opt_index) | |
275 | break; | |
276 | if (j == *decoded_options_count) | |
277 | append_option (decoded_options, decoded_options_count, foption); | |
278 | break; | |
940a2ab8 | 279 | |
06e0d439 | 280 | /* Figure out what PIC/PIE level wins and merge the results. */ |
281 | case OPT_fPIC: | |
282 | case OPT_fpic: | |
283 | pic_option = foption; | |
284 | break; | |
285 | case OPT_fPIE: | |
286 | case OPT_fpie: | |
287 | pie_option = foption; | |
288 | break; | |
289 | ||
fa175926 | 290 | case OPT_fopenmp: |
85977647 | 291 | case OPT_fopenacc: |
e38bbd96 | 292 | /* For selected options we can merge conservatively. */ |
293 | for (j = 0; j < *decoded_options_count; ++j) | |
294 | if ((*decoded_options)[j].opt_index == foption->opt_index) | |
295 | break; | |
296 | if (j == *decoded_options_count) | |
297 | append_option (decoded_options, decoded_options_count, foption); | |
505329dd | 298 | /* -fopenmp > -fno-openmp, |
0c46a085 | 299 | -fopenacc > -fno-openacc */ |
e38bbd96 | 300 | else if (foption->value > (*decoded_options)[j].value) |
301 | (*decoded_options)[j] = *foption; | |
302 | break; | |
303 | ||
948eee2f | 304 | case OPT_fopenacc_dim_: |
305 | /* Append or check identical. */ | |
306 | for (j = 0; j < *decoded_options_count; ++j) | |
307 | if ((*decoded_options)[j].opt_index == foption->opt_index) | |
308 | break; | |
309 | if (j == *decoded_options_count) | |
310 | append_option (decoded_options, decoded_options_count, foption); | |
311 | else if (strcmp ((*decoded_options)[j].arg, foption->arg)) | |
312 | fatal_error (input_location, | |
313 | "Option %s with different values", | |
314 | foption->orig_option_with_args_text); | |
315 | break; | |
316 | ||
958d7687 | 317 | case OPT_O: |
318 | case OPT_Ofast: | |
319 | case OPT_Og: | |
320 | case OPT_Os: | |
321 | for (j = 0; j < *decoded_options_count; ++j) | |
322 | if ((*decoded_options)[j].opt_index == OPT_O | |
323 | || (*decoded_options)[j].opt_index == OPT_Ofast | |
324 | || (*decoded_options)[j].opt_index == OPT_Og | |
325 | || (*decoded_options)[j].opt_index == OPT_Os) | |
326 | break; | |
327 | if (j == *decoded_options_count) | |
328 | append_option (decoded_options, decoded_options_count, foption); | |
329 | else if ((*decoded_options)[j].opt_index == foption->opt_index | |
330 | && foption->opt_index != OPT_O) | |
331 | /* Exact same options get merged. */ | |
332 | ; | |
333 | else | |
334 | { | |
335 | /* For mismatched option kinds preserve the optimization | |
336 | level only, thus merge it as -On. This also handles | |
337 | merging of same optimization level -On. */ | |
338 | int level = 0; | |
339 | switch (foption->opt_index) | |
340 | { | |
341 | case OPT_O: | |
342 | if (foption->arg[0] == '\0') | |
343 | level = MAX (level, 1); | |
344 | else | |
345 | level = MAX (level, atoi (foption->arg)); | |
346 | break; | |
347 | case OPT_Ofast: | |
348 | level = MAX (level, 3); | |
349 | break; | |
350 | case OPT_Og: | |
351 | level = MAX (level, 1); | |
352 | break; | |
353 | case OPT_Os: | |
354 | level = MAX (level, 2); | |
355 | break; | |
356 | default: | |
357 | gcc_unreachable (); | |
358 | } | |
359 | switch ((*decoded_options)[j].opt_index) | |
360 | { | |
361 | case OPT_O: | |
362 | if ((*decoded_options)[j].arg[0] == '\0') | |
363 | level = MAX (level, 1); | |
364 | else | |
365 | level = MAX (level, atoi ((*decoded_options)[j].arg)); | |
366 | break; | |
367 | case OPT_Ofast: | |
368 | level = MAX (level, 3); | |
369 | break; | |
370 | case OPT_Og: | |
371 | level = MAX (level, 1); | |
372 | break; | |
373 | case OPT_Os: | |
374 | level = MAX (level, 2); | |
375 | break; | |
376 | default: | |
377 | gcc_unreachable (); | |
378 | } | |
379 | (*decoded_options)[j].opt_index = OPT_O; | |
380 | char *tem; | |
5e9ac72e | 381 | tem = xasprintf ("-O%d", level); |
958d7687 | 382 | (*decoded_options)[j].arg = &tem[2]; |
383 | (*decoded_options)[j].canonical_option[0] = tem; | |
384 | (*decoded_options)[j].value = 1; | |
385 | } | |
386 | break; | |
06e0d439 | 387 | |
388 | ||
389 | case OPT_foffload_abi_: | |
390 | for (j = 0; j < *decoded_options_count; ++j) | |
391 | if ((*decoded_options)[j].opt_index == foption->opt_index) | |
392 | break; | |
393 | if (j == *decoded_options_count) | |
394 | append_option (decoded_options, decoded_options_count, foption); | |
395 | else if (foption->value != (*decoded_options)[j].value) | |
396 | fatal_error (input_location, | |
397 | "Option %s not used consistently in all LTO input" | |
398 | " files", foption->orig_option_with_args_text); | |
399 | break; | |
400 | ||
38e21583 | 401 | |
402 | case OPT_foffload_: | |
403 | append_option (decoded_options, decoded_options_count, foption); | |
404 | break; | |
954825c9 | 405 | } |
406 | } | |
06e0d439 | 407 | |
408 | /* Merge PIC options: | |
409 | -fPIC + -fpic = -fpic | |
410 | -fPIC + -fno-pic = -fno-pic | |
411 | -fpic/-fPIC + nothin = nothing. | |
412 | It is a common mistake to mix few -fPIC compiled objects into otherwise | |
413 | non-PIC code. We do not want to build everything with PIC then. | |
414 | ||
995068e4 | 415 | Similarly we merge PIE options, however in addition we keep |
416 | -fPIC + -fPIE = -fPIE | |
417 | -fpic + -fPIE = -fpie | |
418 | -fPIC/-fpic + -fpie = -fpie | |
419 | ||
06e0d439 | 420 | It would be good to warn on mismatches, but it is bit hard to do as |
421 | we do not know what nothing translates to. */ | |
422 | ||
423 | for (unsigned int j = 0; j < *decoded_options_count;) | |
424 | if ((*decoded_options)[j].opt_index == OPT_fPIC | |
425 | || (*decoded_options)[j].opt_index == OPT_fpic) | |
426 | { | |
995068e4 | 427 | /* -fno-pic in one unit implies -fno-pic everywhere. */ |
428 | if ((*decoded_options)[j].value == 0) | |
429 | j++; | |
430 | /* If we have no pic option or merge in -fno-pic, we still may turn | |
431 | existing pic/PIC mode into pie/PIE if -fpie/-fPIE is present. */ | |
432 | else if ((pic_option && pic_option->value == 0) | |
433 | || !pic_option) | |
434 | { | |
435 | if (pie_option) | |
436 | { | |
437 | bool big = (*decoded_options)[j].opt_index == OPT_fPIC | |
438 | && pie_option->opt_index == OPT_fPIE; | |
439 | (*decoded_options)[j].opt_index = big ? OPT_fPIE : OPT_fpie; | |
440 | if (pie_option->value) | |
441 | (*decoded_options)[j].canonical_option[0] = big ? "-fPIE" : "-fpie"; | |
442 | else | |
443 | (*decoded_options)[j].canonical_option[0] = big ? "-fno-pie" : "-fno-pie"; | |
444 | (*decoded_options)[j].value = pie_option->value; | |
445 | j++; | |
446 | } | |
447 | else if (pic_option) | |
448 | { | |
449 | (*decoded_options)[j] = *pic_option; | |
450 | j++; | |
451 | } | |
452 | /* We do not know if target defaults to pic or not, so just remove | |
453 | option if it is missing in one unit but enabled in other. */ | |
454 | else | |
455 | remove_option (decoded_options, j, decoded_options_count); | |
456 | } | |
457 | else if (pic_option->opt_index == OPT_fpic | |
458 | && (*decoded_options)[j].opt_index == OPT_fPIC) | |
06e0d439 | 459 | { |
460 | (*decoded_options)[j] = *pic_option; | |
461 | j++; | |
462 | } | |
463 | else | |
464 | j++; | |
465 | } | |
466 | else if ((*decoded_options)[j].opt_index == OPT_fPIE | |
467 | || (*decoded_options)[j].opt_index == OPT_fpie) | |
468 | { | |
995068e4 | 469 | /* -fno-pie in one unit implies -fno-pie everywhere. */ |
470 | if ((*decoded_options)[j].value == 0) | |
471 | j++; | |
472 | /* If we have no pie option or merge in -fno-pie, we still preserve | |
473 | PIE/pie if pic/PIC is present. */ | |
474 | else if ((pie_option && pie_option->value == 0) | |
475 | || !pie_option) | |
476 | { | |
477 | /* If -fPIC/-fpic is given, merge it with -fPIE/-fpie. */ | |
478 | if (pic_option) | |
479 | { | |
480 | if (pic_option->opt_index == OPT_fpic | |
481 | && (*decoded_options)[j].opt_index == OPT_fPIE) | |
482 | { | |
483 | (*decoded_options)[j].opt_index = OPT_fpie; | |
484 | (*decoded_options)[j].canonical_option[0] | |
485 | = pic_option->value ? "-fpie" : "-fno-pie"; | |
486 | } | |
487 | else if (!pic_option->value) | |
488 | (*decoded_options)[j].canonical_option[0] = "-fno-pie"; | |
489 | (*decoded_options)[j].value = pic_option->value; | |
490 | j++; | |
491 | } | |
492 | else if (pie_option) | |
493 | { | |
494 | (*decoded_options)[j] = *pie_option; | |
495 | j++; | |
496 | } | |
497 | /* Because we always append pic/PIE options this code path should | |
498 | not happen unless the LTO object was built by old lto1 which | |
499 | did not contain that logic yet. */ | |
500 | else | |
501 | remove_option (decoded_options, j, decoded_options_count); | |
502 | } | |
503 | else if (pie_option->opt_index == OPT_fpie | |
504 | && (*decoded_options)[j].opt_index == OPT_fPIE) | |
06e0d439 | 505 | { |
506 | (*decoded_options)[j] = *pie_option; | |
507 | j++; | |
508 | } | |
509 | else | |
510 | j++; | |
511 | } | |
512 | else | |
513 | j++; | |
954825c9 | 514 | } |
00d389c8 | 515 | |
77415571 | 516 | /* Auxiliary function that frees elements of PTR and PTR itself. |
517 | N is number of elements to be freed. If PTR is NULL, nothing is freed. | |
518 | If an element is NULL, subsequent elements are not freed. */ | |
519 | ||
520 | static void ** | |
521 | free_array_of_ptrs (void **ptr, unsigned n) | |
522 | { | |
523 | if (!ptr) | |
524 | return NULL; | |
525 | for (unsigned i = 0; i < n; i++) | |
526 | { | |
527 | if (!ptr[i]) | |
528 | break; | |
529 | free (ptr[i]); | |
530 | } | |
531 | free (ptr); | |
532 | return NULL; | |
533 | } | |
534 | ||
535 | /* Parse STR, saving found tokens into PVALUES and return their number. | |
536 | Tokens are assumed to be delimited by ':'. If APPEND is non-null, | |
537 | append it to every token we find. */ | |
538 | ||
539 | static unsigned | |
540 | parse_env_var (const char *str, char ***pvalues, const char *append) | |
541 | { | |
542 | const char *curval, *nextval; | |
543 | char **values; | |
544 | unsigned num = 1, i; | |
545 | ||
546 | curval = strchr (str, ':'); | |
547 | while (curval) | |
548 | { | |
549 | num++; | |
550 | curval = strchr (curval + 1, ':'); | |
551 | } | |
552 | ||
553 | values = (char**) xmalloc (num * sizeof (char*)); | |
554 | curval = str; | |
44ee4fad | 555 | nextval = strchr (curval, ':'); |
556 | if (nextval == NULL) | |
557 | nextval = strchr (curval, '\0'); | |
77415571 | 558 | |
559 | int append_len = append ? strlen (append) : 0; | |
560 | for (i = 0; i < num; i++) | |
561 | { | |
562 | int l = nextval - curval; | |
563 | values[i] = (char*) xmalloc (l + 1 + append_len); | |
564 | memcpy (values[i], curval, l); | |
565 | values[i][l] = 0; | |
566 | if (append) | |
567 | strcat (values[i], append); | |
568 | curval = nextval + 1; | |
44ee4fad | 569 | nextval = strchr (curval, ':'); |
570 | if (nextval == NULL) | |
571 | nextval = strchr (curval, '\0'); | |
77415571 | 572 | } |
573 | *pvalues = values; | |
574 | return num; | |
575 | } | |
576 | ||
38e21583 | 577 | /* Append options OPTS from lto or offload_lto sections to ARGV_OBSTACK. */ |
578 | ||
579 | static void | |
580 | append_compiler_options (obstack *argv_obstack, struct cl_decoded_option *opts, | |
581 | unsigned int count) | |
582 | { | |
583 | /* Append compiler driver arguments as far as they were merged. */ | |
584 | for (unsigned int j = 1; j < count; ++j) | |
585 | { | |
586 | struct cl_decoded_option *option = &opts[j]; | |
587 | ||
588 | /* File options have been properly filtered by lto-opts.c. */ | |
589 | switch (option->opt_index) | |
590 | { | |
591 | /* Drop arguments that we want to take from the link line. */ | |
592 | case OPT_flto_: | |
593 | case OPT_flto: | |
594 | case OPT_flto_partition_: | |
595 | continue; | |
596 | ||
597 | default: | |
598 | break; | |
599 | } | |
600 | ||
601 | /* For now do what the original LTO option code was doing - pass | |
602 | on any CL_TARGET flag and a few selected others. */ | |
603 | switch (option->opt_index) | |
604 | { | |
d50ea280 | 605 | case OPT_fdiagnostics_show_caret: |
b7bb5264 | 606 | case OPT_fdiagnostics_show_labels: |
ff7410b8 | 607 | case OPT_fdiagnostics_show_line_numbers: |
d50ea280 | 608 | case OPT_fdiagnostics_show_option: |
609 | case OPT_fdiagnostics_show_location_: | |
610 | case OPT_fshow_column: | |
38e21583 | 611 | case OPT_fPIC: |
612 | case OPT_fpic: | |
613 | case OPT_fPIE: | |
614 | case OPT_fpie: | |
615 | case OPT_fcommon: | |
38e21583 | 616 | case OPT_fgnu_tm: |
fa175926 | 617 | case OPT_fopenmp: |
85977647 | 618 | case OPT_fopenacc: |
948eee2f | 619 | case OPT_fopenacc_dim_: |
38e21583 | 620 | case OPT_foffload_abi_: |
621 | case OPT_O: | |
622 | case OPT_Ofast: | |
623 | case OPT_Og: | |
624 | case OPT_Os: | |
625 | break; | |
626 | ||
627 | default: | |
628 | if (!(cl_options[option->opt_index].flags & CL_TARGET)) | |
629 | continue; | |
630 | } | |
631 | ||
632 | /* Pass the option on. */ | |
633 | for (unsigned int i = 0; i < option->canonical_option_num_elements; ++i) | |
634 | obstack_ptr_grow (argv_obstack, option->canonical_option[i]); | |
635 | } | |
636 | } | |
637 | ||
9913e2a6 | 638 | /* Append diag options in OPTS with length COUNT to ARGV_OBSTACK. */ |
639 | ||
640 | static void | |
641 | append_diag_options (obstack *argv_obstack, struct cl_decoded_option *opts, | |
642 | unsigned int count) | |
643 | { | |
644 | /* Append compiler driver arguments as far as they were merged. */ | |
645 | for (unsigned int j = 1; j < count; ++j) | |
646 | { | |
647 | struct cl_decoded_option *option = &opts[j]; | |
648 | ||
649 | switch (option->opt_index) | |
650 | { | |
651 | case OPT_fdiagnostics_color_: | |
1bcc5c64 | 652 | case OPT_fdiagnostics_format_: |
9913e2a6 | 653 | case OPT_fdiagnostics_show_caret: |
b7bb5264 | 654 | case OPT_fdiagnostics_show_labels: |
ff7410b8 | 655 | case OPT_fdiagnostics_show_line_numbers: |
9913e2a6 | 656 | case OPT_fdiagnostics_show_option: |
657 | case OPT_fdiagnostics_show_location_: | |
658 | case OPT_fshow_column: | |
659 | break; | |
660 | default: | |
661 | continue; | |
662 | } | |
663 | ||
664 | /* Pass the option on. */ | |
665 | for (unsigned int i = 0; i < option->canonical_option_num_elements; ++i) | |
666 | obstack_ptr_grow (argv_obstack, option->canonical_option[i]); | |
667 | } | |
668 | } | |
669 | ||
670 | ||
38e21583 | 671 | /* Append linker options OPTS to ARGV_OBSTACK. */ |
672 | ||
673 | static void | |
674 | append_linker_options (obstack *argv_obstack, struct cl_decoded_option *opts, | |
675 | unsigned int count) | |
676 | { | |
677 | /* Append linker driver arguments. Compiler options from the linker | |
678 | driver arguments will override / merge with those from the compiler. */ | |
679 | for (unsigned int j = 1; j < count; ++j) | |
680 | { | |
681 | struct cl_decoded_option *option = &opts[j]; | |
682 | ||
683 | /* Do not pass on frontend specific flags not suitable for lto. */ | |
684 | if (!(cl_options[option->opt_index].flags | |
685 | & (CL_COMMON|CL_TARGET|CL_DRIVER|CL_LTO))) | |
686 | continue; | |
687 | ||
688 | switch (option->opt_index) | |
689 | { | |
690 | case OPT_o: | |
691 | case OPT_flto_: | |
692 | case OPT_flto: | |
693 | /* We've handled these LTO options, do not pass them on. */ | |
694 | continue; | |
695 | ||
105958a9 | 696 | case OPT_fopenmp: |
697 | case OPT_fopenacc: | |
105958a9 | 698 | /* Ignore -fno-XXX form of these options, as otherwise |
699 | corresponding builtins will not be enabled. */ | |
700 | if (option->value == 0) | |
701 | continue; | |
702 | break; | |
703 | ||
38e21583 | 704 | default: |
705 | break; | |
706 | } | |
707 | ||
708 | /* Pass the option on. */ | |
709 | for (unsigned int i = 0; i < option->canonical_option_num_elements; ++i) | |
710 | obstack_ptr_grow (argv_obstack, option->canonical_option[i]); | |
711 | } | |
712 | } | |
713 | ||
714 | /* Extract options for TARGET offload compiler from OPTIONS and append | |
715 | them to ARGV_OBSTACK. */ | |
716 | ||
717 | static void | |
718 | append_offload_options (obstack *argv_obstack, const char *target, | |
719 | struct cl_decoded_option *options, | |
720 | unsigned int options_count) | |
721 | { | |
722 | for (unsigned i = 0; i < options_count; i++) | |
723 | { | |
724 | const char *cur, *next, *opts; | |
725 | char **argv; | |
726 | unsigned argc; | |
727 | struct cl_decoded_option *option = &options[i]; | |
728 | ||
729 | if (option->opt_index != OPT_foffload_) | |
730 | continue; | |
731 | ||
732 | /* If option argument starts with '-' then no target is specified. That | |
733 | means offload options are specified for all targets, so we need to | |
734 | append them. */ | |
735 | if (option->arg[0] == '-') | |
736 | opts = option->arg; | |
737 | else | |
738 | { | |
739 | opts = strchr (option->arg, '='); | |
daa8f58f | 740 | /* If there are offload targets specified, but no actual options, |
741 | there is nothing to do here. */ | |
38e21583 | 742 | if (!opts) |
743 | continue; | |
744 | ||
745 | cur = option->arg; | |
746 | ||
747 | while (cur < opts) | |
748 | { | |
44ee4fad | 749 | next = strchr (cur, ','); |
750 | if (next == NULL) | |
6a892749 | 751 | next = opts; |
38e21583 | 752 | next = (next > opts) ? opts : next; |
753 | ||
daa8f58f | 754 | /* Are we looking for this offload target? */ |
38e21583 | 755 | if (strlen (target) == (size_t) (next - cur) |
756 | && strncmp (target, cur, next - cur) == 0) | |
757 | break; | |
758 | ||
daa8f58f | 759 | /* Skip the comma or equal sign. */ |
38e21583 | 760 | cur = next + 1; |
761 | } | |
762 | ||
763 | if (cur >= opts) | |
764 | continue; | |
765 | ||
766 | opts++; | |
767 | } | |
768 | ||
769 | argv = buildargv (opts); | |
770 | for (argc = 0; argv[argc]; argc++) | |
771 | obstack_ptr_grow (argv_obstack, argv[argc]); | |
772 | } | |
773 | } | |
774 | ||
77415571 | 775 | /* Check whether NAME can be accessed in MODE. This is like access, |
776 | except that it never considers directories to be executable. */ | |
777 | ||
778 | static int | |
779 | access_check (const char *name, int mode) | |
780 | { | |
781 | if (mode == X_OK) | |
782 | { | |
783 | struct stat st; | |
784 | ||
785 | if (stat (name, &st) < 0 | |
786 | || S_ISDIR (st.st_mode)) | |
787 | return -1; | |
788 | } | |
789 | ||
790 | return access (name, mode); | |
791 | } | |
792 | ||
793 | /* Prepare a target image for offload TARGET, using mkoffload tool from | |
794 | COMPILER_PATH. Return the name of the resultant object file. */ | |
795 | ||
796 | static char * | |
797 | compile_offload_image (const char *target, const char *compiler_path, | |
38e21583 | 798 | unsigned in_argc, char *in_argv[], |
799 | struct cl_decoded_option *compiler_opts, | |
800 | unsigned int compiler_opt_count, | |
801 | struct cl_decoded_option *linker_opts, | |
802 | unsigned int linker_opt_count) | |
77415571 | 803 | { |
804 | char *filename = NULL; | |
805 | char **argv; | |
806 | char *suffix | |
807 | = XALLOCAVEC (char, sizeof ("/accel//mkoffload") + strlen (target)); | |
808 | strcpy (suffix, "/accel/"); | |
809 | strcat (suffix, target); | |
810 | strcat (suffix, "/mkoffload"); | |
811 | ||
812 | char **paths = NULL; | |
813 | unsigned n_paths = parse_env_var (compiler_path, &paths, suffix); | |
814 | ||
815 | const char *compiler = NULL; | |
816 | for (unsigned i = 0; i < n_paths; i++) | |
817 | if (access_check (paths[i], X_OK) == 0) | |
818 | { | |
819 | compiler = paths[i]; | |
820 | break; | |
821 | } | |
822 | ||
f6b7f3cf | 823 | if (!compiler) |
824 | fatal_error (input_location, | |
825 | "could not find %s in %s (consider using '-B')\n", suffix + 1, | |
826 | compiler_path); | |
827 | ||
828 | /* Generate temporary output file name. */ | |
829 | filename = make_temp_file (".target.o"); | |
830 | ||
831 | struct obstack argv_obstack; | |
832 | obstack_init (&argv_obstack); | |
833 | obstack_ptr_grow (&argv_obstack, compiler); | |
834 | if (save_temps) | |
835 | obstack_ptr_grow (&argv_obstack, "-save-temps"); | |
836 | if (verbose) | |
837 | obstack_ptr_grow (&argv_obstack, "-v"); | |
838 | obstack_ptr_grow (&argv_obstack, "-o"); | |
839 | obstack_ptr_grow (&argv_obstack, filename); | |
840 | ||
841 | /* Append names of input object files. */ | |
842 | for (unsigned i = 0; i < in_argc; i++) | |
843 | obstack_ptr_grow (&argv_obstack, in_argv[i]); | |
844 | ||
845 | /* Append options from offload_lto sections. */ | |
846 | append_compiler_options (&argv_obstack, compiler_opts, | |
847 | compiler_opt_count); | |
848 | append_diag_options (&argv_obstack, linker_opts, linker_opt_count); | |
849 | ||
850 | /* Append options specified by -foffload last. In case of conflicting | |
851 | options we expect offload compiler to choose the latest. */ | |
852 | append_offload_options (&argv_obstack, target, compiler_opts, | |
853 | compiler_opt_count); | |
854 | append_offload_options (&argv_obstack, target, linker_opts, | |
855 | linker_opt_count); | |
856 | ||
857 | obstack_ptr_grow (&argv_obstack, NULL); | |
858 | argv = XOBFINISH (&argv_obstack, char **); | |
859 | fork_execute (argv[0], argv, true); | |
860 | obstack_free (&argv_obstack, NULL); | |
77415571 | 861 | |
862 | free_array_of_ptrs ((void **) paths, n_paths); | |
863 | return filename; | |
864 | } | |
865 | ||
866 | ||
867 | /* The main routine dealing with offloading. | |
868 | The routine builds a target image for each offload target. IN_ARGC and | |
869 | IN_ARGV specify options and input object files. As all of them could contain | |
870 | target sections, we pass them all to target compilers. */ | |
871 | ||
872 | static void | |
38e21583 | 873 | compile_images_for_offload_targets (unsigned in_argc, char *in_argv[], |
874 | struct cl_decoded_option *compiler_opts, | |
875 | unsigned int compiler_opt_count, | |
876 | struct cl_decoded_option *linker_opts, | |
877 | unsigned int linker_opt_count) | |
77415571 | 878 | { |
879 | char **names = NULL; | |
880 | const char *target_names = getenv (OFFLOAD_TARGET_NAMES_ENV); | |
881 | if (!target_names) | |
882 | return; | |
883 | unsigned num_targets = parse_env_var (target_names, &names, NULL); | |
884 | ||
56686608 | 885 | int next_name_entry = 0; |
77415571 | 886 | const char *compiler_path = getenv ("COMPILER_PATH"); |
887 | if (!compiler_path) | |
888 | goto out; | |
889 | ||
890 | /* Prepare an image for each target and save the name of the resultant object | |
891 | file to the OFFLOAD_NAMES array. It is terminated by a NULL entry. */ | |
892 | offload_names = XCNEWVEC (char *, num_targets + 1); | |
893 | for (unsigned i = 0; i < num_targets; i++) | |
894 | { | |
56686608 | 895 | /* HSA does not use LTO-like streaming and a different compiler, skip |
896 | it. */ | |
897 | if (strcmp (names[i], "hsa") == 0) | |
898 | continue; | |
899 | ||
900 | offload_names[next_name_entry] | |
38e21583 | 901 | = compile_offload_image (names[i], compiler_path, in_argc, in_argv, |
902 | compiler_opts, compiler_opt_count, | |
903 | linker_opts, linker_opt_count); | |
56686608 | 904 | if (!offload_names[next_name_entry]) |
c05be867 | 905 | fatal_error (input_location, |
906 | "problem with building target image for %s\n", names[i]); | |
56686608 | 907 | next_name_entry++; |
77415571 | 908 | } |
909 | ||
910 | out: | |
911 | free_array_of_ptrs ((void **) names, num_targets); | |
912 | } | |
913 | ||
914 | /* Copy a file from SRC to DEST. */ | |
915 | ||
916 | static void | |
917 | copy_file (const char *dest, const char *src) | |
918 | { | |
919 | FILE *d = fopen (dest, "wb"); | |
920 | FILE *s = fopen (src, "rb"); | |
921 | char buffer[512]; | |
922 | while (!feof (s)) | |
923 | { | |
924 | size_t len = fread (buffer, 1, 512, s); | |
925 | if (ferror (s) != 0) | |
c05be867 | 926 | fatal_error (input_location, "reading input file"); |
77415571 | 927 | if (len > 0) |
928 | { | |
929 | fwrite (buffer, 1, len, d); | |
930 | if (ferror (d) != 0) | |
c05be867 | 931 | fatal_error (input_location, "writing output file"); |
77415571 | 932 | } |
933 | } | |
2443f8fd | 934 | fclose (d); |
935 | fclose (s); | |
77415571 | 936 | } |
937 | ||
e59c8b12 | 938 | /* Find the crtoffloadtable.o file in LIBRARY_PATH, make copy and pass name of |
939 | the copy to the linker. */ | |
77415571 | 940 | |
941 | static void | |
e59c8b12 | 942 | find_crtoffloadtable (void) |
77415571 | 943 | { |
944 | char **paths = NULL; | |
945 | const char *library_path = getenv ("LIBRARY_PATH"); | |
946 | if (!library_path) | |
947 | return; | |
e59c8b12 | 948 | unsigned n_paths = parse_env_var (library_path, &paths, "/crtoffloadtable.o"); |
77415571 | 949 | |
950 | unsigned i; | |
951 | for (i = 0; i < n_paths; i++) | |
952 | if (access_check (paths[i], R_OK) == 0) | |
953 | { | |
e59c8b12 | 954 | /* The linker will delete the filename we give it, so make a copy. */ |
955 | char *crtoffloadtable = make_temp_file (".crtoffloadtable.o"); | |
956 | copy_file (crtoffloadtable, paths[i]); | |
957 | printf ("%s\n", crtoffloadtable); | |
958 | XDELETEVEC (crtoffloadtable); | |
77415571 | 959 | break; |
960 | } | |
961 | if (i == n_paths) | |
c05be867 | 962 | fatal_error (input_location, |
f2a60d44 | 963 | "installation error, can%'t find crtoffloadtable.o"); |
77415571 | 964 | |
965 | free_array_of_ptrs ((void **) paths, n_paths); | |
966 | } | |
967 | ||
38e21583 | 968 | /* A subroutine of run_gcc. Examine the open file FD for lto sections with |
969 | name prefix PREFIX, at FILE_OFFSET, and store any options we find in OPTS | |
970 | and OPT_COUNT. Return true if we found a matchingn section, false | |
971 | otherwise. COLLECT_GCC holds the value of the environment variable with | |
972 | the same name. */ | |
973 | ||
974 | static bool | |
975 | find_and_merge_options (int fd, off_t file_offset, const char *prefix, | |
976 | struct cl_decoded_option **opts, | |
977 | unsigned int *opt_count, const char *collect_gcc) | |
978 | { | |
979 | off_t offset, length; | |
980 | char *data; | |
981 | char *fopts; | |
982 | const char *errmsg; | |
983 | int err; | |
984 | struct cl_decoded_option *fdecoded_options = *opts; | |
985 | unsigned int fdecoded_options_count = *opt_count; | |
986 | ||
987 | simple_object_read *sobj; | |
988 | sobj = simple_object_start_read (fd, file_offset, "__GNU_LTO", | |
989 | &errmsg, &err); | |
990 | if (!sobj) | |
991 | return false; | |
992 | ||
993 | char *secname = XALLOCAVEC (char, strlen (prefix) + sizeof (".opts")); | |
994 | strcpy (secname, prefix); | |
995 | strcat (secname, ".opts"); | |
996 | if (!simple_object_find_section (sobj, secname, &offset, &length, | |
997 | &errmsg, &err)) | |
998 | { | |
999 | simple_object_release_read (sobj); | |
1000 | return false; | |
1001 | } | |
1002 | ||
1003 | lseek (fd, file_offset + offset, SEEK_SET); | |
1004 | data = (char *)xmalloc (length); | |
1005 | read (fd, data, length); | |
1006 | fopts = data; | |
1007 | do | |
1008 | { | |
1009 | struct cl_decoded_option *f2decoded_options; | |
1010 | unsigned int f2decoded_options_count; | |
1011 | get_options_from_collect_gcc_options (collect_gcc, | |
1012 | fopts, CL_LANG_ALL, | |
1013 | &f2decoded_options, | |
1014 | &f2decoded_options_count); | |
1015 | if (!fdecoded_options) | |
1016 | { | |
1017 | fdecoded_options = f2decoded_options; | |
1018 | fdecoded_options_count = f2decoded_options_count; | |
1019 | } | |
1020 | else | |
1021 | merge_and_complain (&fdecoded_options, | |
1022 | &fdecoded_options_count, | |
1023 | f2decoded_options, f2decoded_options_count); | |
1024 | ||
1025 | fopts += strlen (fopts) + 1; | |
1026 | } | |
1027 | while (fopts - data < length); | |
1028 | ||
1029 | free (data); | |
1030 | simple_object_release_read (sobj); | |
1031 | *opts = fdecoded_options; | |
1032 | *opt_count = fdecoded_options_count; | |
1033 | return true; | |
1034 | } | |
1035 | ||
7b53e714 | 1036 | /* Copy early debug info sections from INFILE to a new file whose name |
1037 | is returned. Return NULL on error. */ | |
1038 | ||
1039 | const char * | |
5ab17bfb | 1040 | debug_objcopy (const char *infile, bool rename) |
7b53e714 | 1041 | { |
6dc407e1 | 1042 | char *outfile; |
7b53e714 | 1043 | const char *errmsg; |
1044 | int err; | |
1045 | ||
1046 | const char *p; | |
1047 | off_t inoff = 0; | |
1048 | long loffset; | |
1049 | int consumed; | |
1050 | if ((p = strrchr (infile, '@')) | |
1051 | && p != infile | |
1052 | && sscanf (p, "@%li%n", &loffset, &consumed) >= 1 | |
1053 | && strlen (p) == (unsigned int) consumed) | |
1054 | { | |
1055 | char *fname = xstrdup (infile); | |
1056 | fname[p - infile] = '\0'; | |
1057 | infile = fname; | |
1058 | inoff = (off_t) loffset; | |
1059 | } | |
b50dd1e4 | 1060 | int infd = open (infile, O_RDONLY | O_BINARY); |
7b53e714 | 1061 | if (infd == -1) |
1062 | return NULL; | |
1063 | simple_object_read *inobj = simple_object_start_read (infd, inoff, | |
1064 | "__GNU_LTO", | |
1065 | &errmsg, &err); | |
1066 | if (!inobj) | |
1067 | return NULL; | |
1068 | ||
1069 | off_t off, len; | |
1070 | if (simple_object_find_section (inobj, ".gnu.debuglto_.debug_info", | |
1071 | &off, &len, &errmsg, &err) != 1) | |
1072 | { | |
1073 | if (errmsg) | |
1074 | fatal_error (0, "%s: %s\n", errmsg, xstrerror (err)); | |
1075 | ||
1076 | simple_object_release_read (inobj); | |
1077 | close (infd); | |
1078 | return NULL; | |
1079 | } | |
1080 | ||
6dc407e1 | 1081 | if (save_temps) |
1082 | { | |
1083 | outfile = (char *) xmalloc (strlen (infile) | |
1084 | + sizeof (".debug.temp.o") + 1); | |
1085 | strcpy (outfile, infile); | |
1086 | strcat (outfile, ".debug.temp.o"); | |
1087 | } | |
1088 | else | |
1089 | outfile = make_temp_file (".debug.temp.o"); | |
5ab17bfb | 1090 | errmsg = simple_object_copy_lto_debug_sections (inobj, outfile, &err, rename); |
7b53e714 | 1091 | if (errmsg) |
1092 | { | |
1093 | unlink_if_ordinary (outfile); | |
1094 | fatal_error (0, "%s: %s\n", errmsg, xstrerror (err)); | |
1095 | } | |
1096 | ||
1097 | simple_object_release_read (inobj); | |
1098 | close (infd); | |
1099 | ||
1100 | return outfile; | |
1101 | } | |
1102 | ||
747c1878 | 1103 | /* Helper for qsort: compare priorities for parallel compilation. */ |
1104 | ||
1105 | int | |
1106 | cmp_priority (const void *a, const void *b) | |
1107 | { | |
1108 | return *((const int *)b)-*((const int *)a); | |
1109 | } | |
7b53e714 | 1110 | |
1111 | ||
7bfefa9d | 1112 | /* Execute gcc. ARGC is the number of arguments. ARGV contains the arguments. */ |
1113 | ||
1114 | static void | |
1115 | run_gcc (unsigned argc, char *argv[]) | |
1116 | { | |
c8c65e07 | 1117 | unsigned i, j; |
7bfefa9d | 1118 | const char **new_argv; |
1119 | const char **argv_ptr; | |
7bfefa9d | 1120 | char *list_option_full = NULL; |
c8c65e07 | 1121 | const char *linker_output = NULL; |
00d389c8 | 1122 | const char *collect_gcc, *collect_gcc_options; |
cba6710d | 1123 | int parallel = 0; |
442bd81c | 1124 | int jobserver = 0; |
cbcf2791 | 1125 | bool no_partition = false; |
954825c9 | 1126 | struct cl_decoded_option *fdecoded_options = NULL; |
38e21583 | 1127 | struct cl_decoded_option *offload_fdecoded_options = NULL; |
954825c9 | 1128 | unsigned int fdecoded_options_count = 0; |
38e21583 | 1129 | unsigned int offload_fdecoded_options_count = 0; |
00d389c8 | 1130 | struct cl_decoded_option *decoded_options; |
1131 | unsigned int decoded_options_count; | |
b84346c6 | 1132 | struct obstack argv_obstack; |
1133 | int new_head_argc; | |
77415571 | 1134 | bool have_lto = false; |
1135 | bool have_offload = false; | |
7b53e714 | 1136 | unsigned lto_argc = 0, ltoobj_argc = 0; |
1137 | char **lto_argv, **ltoobj_argv; | |
5ab17bfb | 1138 | bool linker_output_rel = false; |
7b53e714 | 1139 | bool skip_debug = false; |
1140 | unsigned n_debugobj; | |
c8c65e07 | 1141 | |
1142 | /* Get the driver and options. */ | |
1143 | collect_gcc = getenv ("COLLECT_GCC"); | |
1144 | if (!collect_gcc) | |
c05be867 | 1145 | fatal_error (input_location, |
1146 | "environment variable COLLECT_GCC must be set"); | |
c8c65e07 | 1147 | collect_gcc_options = getenv ("COLLECT_GCC_OPTIONS"); |
1148 | if (!collect_gcc_options) | |
c05be867 | 1149 | fatal_error (input_location, |
1150 | "environment variable COLLECT_GCC_OPTIONS must be set"); | |
00d389c8 | 1151 | get_options_from_collect_gcc_options (collect_gcc, collect_gcc_options, |
1152 | CL_LANG_ALL, | |
1153 | &decoded_options, | |
1154 | &decoded_options_count); | |
c8c65e07 | 1155 | |
e59c8b12 | 1156 | /* Allocate array for input object files with LTO IL, |
e02afbb7 | 1157 | and for possible preceding arguments. */ |
1158 | lto_argv = XNEWVEC (char *, argc); | |
7b53e714 | 1159 | ltoobj_argv = XNEWVEC (char *, argc); |
e02afbb7 | 1160 | |
954825c9 | 1161 | /* Look at saved options in the IL files. */ |
1162 | for (i = 1; i < argc; ++i) | |
1163 | { | |
38e21583 | 1164 | char *p; |
954825c9 | 1165 | int fd; |
38e21583 | 1166 | off_t file_offset = 0; |
954825c9 | 1167 | long loffset; |
954825c9 | 1168 | int consumed; |
954825c9 | 1169 | char *filename = argv[i]; |
38e21583 | 1170 | |
e59c8b12 | 1171 | if (strncmp (argv[i], "-foffload-objects=", |
1172 | sizeof ("-foffload-objects=") - 1) == 0) | |
1173 | { | |
1174 | have_offload = true; | |
1175 | offload_objects_file_name | |
1176 | = argv[i] + sizeof ("-foffload-objects=") - 1; | |
1177 | continue; | |
1178 | } | |
1179 | ||
954825c9 | 1180 | if ((p = strrchr (argv[i], '@')) |
1181 | && p != argv[i] | |
1182 | && sscanf (p, "@%li%n", &loffset, &consumed) >= 1 | |
1183 | && strlen (p) == (unsigned int) consumed) | |
1184 | { | |
1185 | filename = XNEWVEC (char, p - argv[i] + 1); | |
1186 | memcpy (filename, argv[i], p - argv[i]); | |
1187 | filename[p - argv[i]] = '\0'; | |
1188 | file_offset = (off_t) loffset; | |
1189 | } | |
0d64e1fb | 1190 | fd = open (filename, O_RDONLY | O_BINARY); |
5ab17bfb | 1191 | /* Linker plugin passes -fresolution and -flinker-output options. |
1192 | -flinker-output is passed only when user did not specify one and thus | |
1193 | we do not need to worry about duplicities with the option handling | |
1194 | below. */ | |
954825c9 | 1195 | if (fd == -1) |
e02afbb7 | 1196 | { |
1197 | lto_argv[lto_argc++] = argv[i]; | |
5ab17bfb | 1198 | if (strcmp (argv[i], "-flinker-output=rel") == 0) |
1199 | linker_output_rel = true; | |
e02afbb7 | 1200 | continue; |
1201 | } | |
1202 | ||
1203 | if (find_and_merge_options (fd, file_offset, LTO_SECTION_NAME_PREFIX, | |
1204 | &fdecoded_options, &fdecoded_options_count, | |
1205 | collect_gcc)) | |
1206 | { | |
1207 | have_lto = true; | |
7b53e714 | 1208 | ltoobj_argv[ltoobj_argc++] = argv[i]; |
e02afbb7 | 1209 | } |
954825c9 | 1210 | close (fd); |
1211 | } | |
1212 | ||
c8c65e07 | 1213 | /* Initalize the common arguments for the driver. */ |
b84346c6 | 1214 | obstack_init (&argv_obstack); |
1215 | obstack_ptr_grow (&argv_obstack, collect_gcc); | |
1216 | obstack_ptr_grow (&argv_obstack, "-xlto"); | |
1217 | obstack_ptr_grow (&argv_obstack, "-c"); | |
954825c9 | 1218 | |
38e21583 | 1219 | append_compiler_options (&argv_obstack, fdecoded_options, |
1220 | fdecoded_options_count); | |
1221 | append_linker_options (&argv_obstack, decoded_options, decoded_options_count); | |
954825c9 | 1222 | |
38e21583 | 1223 | /* Scan linker driver arguments for things that are of relevance to us. */ |
00d389c8 | 1224 | for (j = 1; j < decoded_options_count; ++j) |
1225 | { | |
1226 | struct cl_decoded_option *option = &decoded_options[j]; | |
00d389c8 | 1227 | switch (option->opt_index) |
1228 | { | |
1229 | case OPT_o: | |
1230 | linker_output = option->arg; | |
38e21583 | 1231 | break; |
00d389c8 | 1232 | |
1233 | case OPT_save_temps: | |
572cae00 | 1234 | save_temps = 1; |
00d389c8 | 1235 | break; |
1236 | ||
1237 | case OPT_v: | |
c8c65e07 | 1238 | verbose = 1; |
00d389c8 | 1239 | break; |
c8c65e07 | 1240 | |
4a137074 | 1241 | case OPT_flto_partition_: |
1242 | if (strcmp (option->arg, "none") == 0) | |
1243 | no_partition = true; | |
00d389c8 | 1244 | break; |
1245 | ||
1246 | case OPT_flto_: | |
1247 | if (strcmp (option->arg, "jobserver") == 0) | |
1248 | { | |
1249 | jobserver = 1; | |
1250 | parallel = 1; | |
1251 | } | |
1252 | else | |
1253 | { | |
1254 | parallel = atoi (option->arg); | |
1255 | if (parallel <= 1) | |
1256 | parallel = 0; | |
1257 | } | |
1258 | /* Fallthru. */ | |
1259 | ||
1260 | case OPT_flto: | |
1261 | lto_mode = LTO_MODE_WHOPR; | |
38e21583 | 1262 | break; |
940a2ab8 | 1263 | |
5ab17bfb | 1264 | case OPT_flinker_output_: |
1265 | linker_output_rel = !strcmp (option->arg, "rel"); | |
1266 | break; | |
1267 | ||
1268 | ||
00d389c8 | 1269 | default: |
1270 | break; | |
1271 | } | |
00d389c8 | 1272 | } |
1273 | ||
7b53e714 | 1274 | /* Output lto-wrapper invocation command. */ |
1275 | if (verbose) | |
1276 | { | |
1277 | for (i = 0; i < argc; ++i) | |
1278 | { | |
1279 | fputs (argv[i], stderr); | |
1280 | fputc (' ', stderr); | |
1281 | } | |
1282 | fputc ('\n', stderr); | |
1283 | } | |
1284 | ||
5ab17bfb | 1285 | if (linker_output_rel) |
1286 | no_partition = true; | |
1287 | ||
cbcf2791 | 1288 | if (no_partition) |
1289 | { | |
1290 | lto_mode = LTO_MODE_LTO; | |
1291 | jobserver = 0; | |
1292 | parallel = 0; | |
1293 | } | |
c8c65e07 | 1294 | |
1295 | if (linker_output) | |
1296 | { | |
1297 | char *output_dir, *base, *name; | |
ad905e43 | 1298 | bool bit_bucket = strcmp (linker_output, HOST_BIT_BUCKET) == 0; |
7bfefa9d | 1299 | |
c8c65e07 | 1300 | output_dir = xstrdup (linker_output); |
1301 | base = output_dir; | |
1302 | for (name = base; *name; name++) | |
1303 | if (IS_DIR_SEPARATOR (*name)) | |
1304 | base = name + 1; | |
1305 | *base = '\0'; | |
1306 | ||
1307 | linker_output = &linker_output[base - output_dir]; | |
1308 | if (*output_dir == '\0') | |
1309 | { | |
1310 | static char current_dir[] = { '.', DIR_SEPARATOR, '\0' }; | |
1311 | output_dir = current_dir; | |
1312 | } | |
ad905e43 | 1313 | if (!bit_bucket) |
1314 | { | |
b84346c6 | 1315 | obstack_ptr_grow (&argv_obstack, "-dumpdir"); |
1316 | obstack_ptr_grow (&argv_obstack, output_dir); | |
ad905e43 | 1317 | } |
c8c65e07 | 1318 | |
b84346c6 | 1319 | obstack_ptr_grow (&argv_obstack, "-dumpbase"); |
c8c65e07 | 1320 | } |
b84346c6 | 1321 | |
1322 | /* Remember at which point we can scrub args to re-use the commons. */ | |
1323 | new_head_argc = obstack_object_size (&argv_obstack) / sizeof (void *); | |
7bfefa9d | 1324 | |
77415571 | 1325 | if (have_offload) |
1326 | { | |
e59c8b12 | 1327 | unsigned i, num_offload_files; |
1328 | char **offload_argv; | |
1329 | FILE *f; | |
1330 | ||
1331 | f = fopen (offload_objects_file_name, "r"); | |
1332 | if (f == NULL) | |
1333 | fatal_error (input_location, "cannot open %s: %m", | |
1334 | offload_objects_file_name); | |
1335 | if (fscanf (f, "%u ", &num_offload_files) != 1) | |
1336 | fatal_error (input_location, "cannot read %s: %m", | |
1337 | offload_objects_file_name); | |
1338 | offload_argv = XCNEWVEC (char *, num_offload_files); | |
1339 | ||
1340 | /* Read names of object files with offload. */ | |
1341 | for (i = 0; i < num_offload_files; i++) | |
1342 | { | |
1343 | const unsigned piece = 32; | |
1344 | char *buf, *filename = XNEWVEC (char, piece); | |
1345 | size_t len; | |
1346 | ||
1347 | buf = filename; | |
1348 | cont1: | |
1349 | if (!fgets (buf, piece, f)) | |
1350 | break; | |
1351 | len = strlen (filename); | |
1352 | if (filename[len - 1] != '\n') | |
1353 | { | |
1354 | filename = XRESIZEVEC (char, filename, len + piece); | |
1355 | buf = filename + len; | |
1356 | goto cont1; | |
1357 | } | |
1358 | filename[len - 1] = '\0'; | |
1359 | offload_argv[i] = filename; | |
1360 | } | |
1361 | fclose (f); | |
1362 | if (offload_argv[num_offload_files - 1] == NULL) | |
1363 | fatal_error (input_location, "invalid format of %s", | |
1364 | offload_objects_file_name); | |
1365 | maybe_unlink (offload_objects_file_name); | |
1366 | offload_objects_file_name = NULL; | |
1367 | ||
1368 | /* Look at saved offload options in files. */ | |
1369 | for (i = 0; i < num_offload_files; i++) | |
1370 | { | |
1371 | char *p; | |
1372 | long loffset; | |
1373 | int fd, consumed; | |
1374 | off_t file_offset = 0; | |
1375 | char *filename = offload_argv[i]; | |
1376 | ||
1377 | if ((p = strrchr (offload_argv[i], '@')) | |
1378 | && p != offload_argv[i] | |
1379 | && sscanf (p, "@%li%n", &loffset, &consumed) >= 1 | |
1380 | && strlen (p) == (unsigned int) consumed) | |
1381 | { | |
1382 | filename = XNEWVEC (char, p - offload_argv[i] + 1); | |
1383 | memcpy (filename, offload_argv[i], p - offload_argv[i]); | |
1384 | filename[p - offload_argv[i]] = '\0'; | |
1385 | file_offset = (off_t) loffset; | |
1386 | } | |
1387 | fd = open (filename, O_RDONLY | O_BINARY); | |
1388 | if (fd == -1) | |
1389 | fatal_error (input_location, "cannot open %s: %m", filename); | |
1390 | if (!find_and_merge_options (fd, file_offset, | |
1391 | OFFLOAD_SECTION_NAME_PREFIX, | |
1392 | &offload_fdecoded_options, | |
1393 | &offload_fdecoded_options_count, | |
1394 | collect_gcc)) | |
1395 | fatal_error (input_location, "cannot read %s: %m", filename); | |
1396 | close (fd); | |
1397 | if (filename != offload_argv[i]) | |
1398 | XDELETEVEC (filename); | |
1399 | } | |
1400 | ||
1401 | compile_images_for_offload_targets (num_offload_files, offload_argv, | |
e02afbb7 | 1402 | offload_fdecoded_options, |
38e21583 | 1403 | offload_fdecoded_options_count, |
1404 | decoded_options, | |
1405 | decoded_options_count); | |
e59c8b12 | 1406 | |
1407 | free_array_of_ptrs ((void **) offload_argv, num_offload_files); | |
1408 | ||
77415571 | 1409 | if (offload_names) |
1410 | { | |
e59c8b12 | 1411 | find_crtoffloadtable (); |
77415571 | 1412 | for (i = 0; offload_names[i]; i++) |
1413 | printf ("%s\n", offload_names[i]); | |
1414 | free_array_of_ptrs ((void **) offload_names, i); | |
1415 | } | |
1416 | } | |
1417 | ||
77415571 | 1418 | /* If object files contain offload sections, but do not contain LTO sections, |
1419 | then there is no need to perform a link-time recompilation, i.e. | |
1420 | lto-wrapper is used only for a compilation of offload images. */ | |
1421 | if (have_offload && !have_lto) | |
e59c8b12 | 1422 | goto finish; |
77415571 | 1423 | |
7bfefa9d | 1424 | if (lto_mode == LTO_MODE_LTO) |
1425 | { | |
c8c65e07 | 1426 | if (linker_output) |
6dc407e1 | 1427 | { |
1428 | obstack_ptr_grow (&argv_obstack, linker_output); | |
1429 | flto_out = (char *) xmalloc (strlen (linker_output) | |
1430 | + sizeof (".lto.o") + 1); | |
1431 | strcpy (flto_out, linker_output); | |
1432 | strcat (flto_out, ".lto.o"); | |
1433 | } | |
1434 | else | |
1435 | flto_out = make_temp_file (".lto.o"); | |
b84346c6 | 1436 | obstack_ptr_grow (&argv_obstack, "-o"); |
1437 | obstack_ptr_grow (&argv_obstack, flto_out); | |
7bfefa9d | 1438 | } |
c7d28f13 | 1439 | else |
7bfefa9d | 1440 | { |
1441 | const char *list_option = "-fltrans-output-list="; | |
1442 | size_t list_option_len = strlen (list_option); | |
1443 | char *tmp; | |
1444 | ||
c8c65e07 | 1445 | if (linker_output) |
1446 | { | |
1447 | char *dumpbase = (char *) xmalloc (strlen (linker_output) | |
2024fa7d | 1448 | + sizeof (".wpa") + 1); |
c8c65e07 | 1449 | strcpy (dumpbase, linker_output); |
1450 | strcat (dumpbase, ".wpa"); | |
b84346c6 | 1451 | obstack_ptr_grow (&argv_obstack, dumpbase); |
c8c65e07 | 1452 | } |
1453 | ||
572cae00 | 1454 | if (linker_output && save_temps) |
2024fa7d | 1455 | { |
1456 | ltrans_output_file = (char *) xmalloc (strlen (linker_output) | |
1457 | + sizeof (".ltrans.out") + 1); | |
1458 | strcpy (ltrans_output_file, linker_output); | |
1459 | strcat (ltrans_output_file, ".ltrans.out"); | |
1460 | } | |
1461 | else | |
14ad4d70 | 1462 | { |
1463 | char *prefix = NULL; | |
1464 | if (linker_output) | |
1465 | { | |
1466 | prefix = (char *) xmalloc (strlen (linker_output) + 2); | |
1467 | strcpy (prefix, linker_output); | |
1468 | strcat (prefix, "."); | |
1469 | } | |
1470 | ||
1471 | ltrans_output_file = make_temp_file_with_prefix (prefix, | |
1472 | ".ltrans.out"); | |
1473 | free (prefix); | |
1474 | } | |
7bfefa9d | 1475 | list_option_full = (char *) xmalloc (sizeof (char) * |
1476 | (strlen (ltrans_output_file) + list_option_len + 1)); | |
1477 | tmp = list_option_full; | |
1478 | ||
b84346c6 | 1479 | obstack_ptr_grow (&argv_obstack, tmp); |
7bfefa9d | 1480 | strcpy (tmp, list_option); |
1481 | tmp += list_option_len; | |
1482 | strcpy (tmp, ltrans_output_file); | |
1483 | ||
3e17769e | 1484 | if (jobserver) |
1485 | obstack_ptr_grow (&argv_obstack, xstrdup ("-fwpa=jobserver")); | |
1486 | else if (parallel > 1) | |
1487 | { | |
1488 | char buf[256]; | |
1489 | sprintf (buf, "-fwpa=%i", parallel); | |
1490 | obstack_ptr_grow (&argv_obstack, xstrdup (buf)); | |
1491 | } | |
1492 | else | |
1493 | obstack_ptr_grow (&argv_obstack, "-fwpa"); | |
7bfefa9d | 1494 | } |
7bfefa9d | 1495 | |
7b53e714 | 1496 | /* Append input arguments. */ |
e02afbb7 | 1497 | for (i = 0; i < lto_argc; ++i) |
1498 | obstack_ptr_grow (&argv_obstack, lto_argv[i]); | |
7b53e714 | 1499 | /* Append the input objects. */ |
1500 | for (i = 0; i < ltoobj_argc; ++i) | |
1501 | obstack_ptr_grow (&argv_obstack, ltoobj_argv[i]); | |
b84346c6 | 1502 | obstack_ptr_grow (&argv_obstack, NULL); |
7bfefa9d | 1503 | |
b84346c6 | 1504 | new_argv = XOBFINISH (&argv_obstack, const char **); |
1505 | argv_ptr = &new_argv[new_head_argc]; | |
39ef03bb | 1506 | fork_execute (new_argv[0], CONST_CAST (char **, new_argv), true); |
264cbb51 | 1507 | |
7b53e714 | 1508 | /* Copy the early generated debug info from the objects to temporary |
1509 | files and append those to the partial link commandline. */ | |
1510 | n_debugobj = 0; | |
6dc407e1 | 1511 | early_debug_object_names = NULL; |
7b53e714 | 1512 | if (! skip_debug) |
7b53e714 | 1513 | { |
6dc407e1 | 1514 | early_debug_object_names = XCNEWVEC (const char *, ltoobj_argc+ 1); |
1515 | num_deb_objs = ltoobj_argc; | |
1516 | for (i = 0; i < ltoobj_argc; ++i) | |
7b53e714 | 1517 | { |
6dc407e1 | 1518 | const char *tem; |
1519 | if ((tem = debug_objcopy (ltoobj_argv[i], !linker_output_rel))) | |
1520 | { | |
1521 | early_debug_object_names[i] = tem; | |
1522 | n_debugobj++; | |
1523 | } | |
7b53e714 | 1524 | } |
1525 | } | |
7b53e714 | 1526 | |
7bfefa9d | 1527 | if (lto_mode == LTO_MODE_LTO) |
1528 | { | |
9af5ce0c | 1529 | printf ("%s\n", flto_out); |
7b53e714 | 1530 | if (!skip_debug) |
1531 | { | |
6dc407e1 | 1532 | for (i = 0; i < ltoobj_argc; ++i) |
1533 | if (early_debug_object_names[i] != NULL) | |
1534 | printf ("%s\n", early_debug_object_names[i]); | |
7b53e714 | 1535 | } |
6dc407e1 | 1536 | /* These now belong to collect2. */ |
7bfefa9d | 1537 | free (flto_out); |
1538 | flto_out = NULL; | |
6dc407e1 | 1539 | free (early_debug_object_names); |
1540 | early_debug_object_names = NULL; | |
7bfefa9d | 1541 | } |
c7d28f13 | 1542 | else |
7bfefa9d | 1543 | { |
1544 | FILE *stream = fopen (ltrans_output_file, "r"); | |
cba6710d | 1545 | FILE *mstream = NULL; |
eefcf076 | 1546 | struct obstack env_obstack; |
747c1878 | 1547 | int priority; |
7bfefa9d | 1548 | |
1549 | if (!stream) | |
c05be867 | 1550 | fatal_error (input_location, "fopen: %s: %m", ltrans_output_file); |
7bfefa9d | 1551 | |
4062f557 | 1552 | /* Parse the list of LTRANS inputs from the WPA stage. */ |
eefcf076 | 1553 | obstack_init (&env_obstack); |
4062f557 | 1554 | nr = 0; |
264cbb51 | 1555 | for (;;) |
1556 | { | |
1557 | const unsigned piece = 32; | |
4062f557 | 1558 | char *output_name = NULL; |
264cbb51 | 1559 | char *buf, *input_name = (char *)xmalloc (piece); |
1560 | size_t len; | |
1561 | ||
1562 | buf = input_name; | |
747c1878 | 1563 | if (fscanf (stream, "%i\n", &priority) != 1) |
1564 | { | |
1565 | if (!feof (stream)) | |
1566 | fatal_error (input_location, | |
1567 | "Corrupted ltrans output file %s", | |
1568 | ltrans_output_file); | |
1569 | break; | |
1570 | } | |
264cbb51 | 1571 | cont: |
1572 | if (!fgets (buf, piece, stream)) | |
1573 | break; | |
1574 | len = strlen (input_name); | |
1575 | if (input_name[len - 1] != '\n') | |
1576 | { | |
1577 | input_name = (char *)xrealloc (input_name, len + piece); | |
1578 | buf = input_name + len; | |
1579 | goto cont; | |
1580 | } | |
1581 | input_name[len - 1] = '\0'; | |
1582 | ||
1583 | if (input_name[0] == '*') | |
cba6710d | 1584 | output_name = &input_name[1]; |
264cbb51 | 1585 | |
cba6710d | 1586 | nr++; |
747c1878 | 1587 | ltrans_priorities |
1588 | = (int *)xrealloc (ltrans_priorities, nr * sizeof (int) * 2); | |
cba6710d | 1589 | input_names = (char **)xrealloc (input_names, nr * sizeof (char *)); |
1590 | output_names = (char **)xrealloc (output_names, nr * sizeof (char *)); | |
747c1878 | 1591 | ltrans_priorities[(nr-1)*2] = priority; |
1592 | ltrans_priorities[(nr-1)*2+1] = nr-1; | |
cba6710d | 1593 | input_names[nr-1] = input_name; |
1594 | output_names[nr-1] = output_name; | |
1595 | } | |
4062f557 | 1596 | fclose (stream); |
eb9ccb01 | 1597 | maybe_unlink (ltrans_output_file); |
4062f557 | 1598 | ltrans_output_file = NULL; |
1599 | ||
1600 | if (parallel) | |
1601 | { | |
1602 | makefile = make_temp_file (".mk"); | |
1603 | mstream = fopen (makefile, "w"); | |
747c1878 | 1604 | qsort (ltrans_priorities, nr, sizeof (int) * 2, cmp_priority); |
4062f557 | 1605 | } |
1606 | ||
1607 | /* Execute the LTRANS stage for each input file (or prepare a | |
1608 | makefile to invoke this in parallel). */ | |
1609 | for (i = 0; i < nr; ++i) | |
1610 | { | |
1611 | char *output_name; | |
1612 | char *input_name = input_names[i]; | |
1613 | /* If it's a pass-through file do nothing. */ | |
1614 | if (output_names[i]) | |
1615 | continue; | |
1616 | ||
1617 | /* Replace the .o suffix with a .ltrans.o suffix and write | |
1618 | the resulting name to the LTRANS output list. */ | |
4062f557 | 1619 | obstack_grow (&env_obstack, input_name, strlen (input_name) - 2); |
1620 | obstack_grow (&env_obstack, ".ltrans.o", sizeof (".ltrans.o")); | |
1621 | output_name = XOBFINISH (&env_obstack, char *); | |
1622 | ||
1623 | /* Adjust the dumpbase if the linker output file was seen. */ | |
1624 | if (linker_output) | |
1625 | { | |
1626 | char *dumpbase | |
1627 | = (char *) xmalloc (strlen (linker_output) | |
9af5ce0c | 1628 | + sizeof (DUMPBASE_SUFFIX) + 1); |
4062f557 | 1629 | snprintf (dumpbase, |
9af5ce0c | 1630 | strlen (linker_output) + sizeof (DUMPBASE_SUFFIX), |
2024fa7d | 1631 | "%s.ltrans%u", linker_output, i); |
4062f557 | 1632 | argv_ptr[0] = dumpbase; |
1633 | } | |
1634 | ||
1635 | argv_ptr[1] = "-fltrans"; | |
1636 | argv_ptr[2] = "-o"; | |
1637 | argv_ptr[3] = output_name; | |
1638 | argv_ptr[4] = input_name; | |
1639 | argv_ptr[5] = NULL; | |
1640 | if (parallel) | |
1641 | { | |
1642 | fprintf (mstream, "%s:\n\t@%s ", output_name, new_argv[0]); | |
1643 | for (j = 1; new_argv[j] != NULL; ++j) | |
1644 | fprintf (mstream, " '%s'", new_argv[j]); | |
1645 | fprintf (mstream, "\n"); | |
4fe86c66 | 1646 | /* If we are not preserving the ltrans input files then |
1647 | truncate them as soon as we have processed it. This | |
1648 | reduces temporary disk-space usage. */ | |
572cae00 | 1649 | if (! save_temps) |
4fe86c66 | 1650 | fprintf (mstream, "\t@-touch -r %s %s.tem > /dev/null 2>&1 " |
1651 | "&& mv %s.tem %s\n", | |
1652 | input_name, input_name, input_name, input_name); | |
4062f557 | 1653 | } |
1654 | else | |
4fe86c66 | 1655 | { |
39ef03bb | 1656 | fork_execute (new_argv[0], CONST_CAST (char **, new_argv), |
1657 | true); | |
eb9ccb01 | 1658 | maybe_unlink (input_name); |
4fe86c66 | 1659 | } |
4062f557 | 1660 | |
1661 | output_names[i] = output_name; | |
1662 | } | |
cba6710d | 1663 | if (parallel) |
1664 | { | |
1665 | struct pex_obj *pex; | |
1666 | char jobs[32]; | |
442bd81c | 1667 | |
24ca56d6 | 1668 | fprintf (mstream, |
1669 | ".PHONY: all\n" | |
1670 | "all:"); | |
cba6710d | 1671 | for (i = 0; i < nr; ++i) |
747c1878 | 1672 | { |
1673 | int j = ltrans_priorities[i*2 + 1]; | |
1674 | fprintf (mstream, " \\\n\t%s", output_names[j]); | |
1675 | } | |
cba6710d | 1676 | fprintf (mstream, "\n"); |
1677 | fclose (mstream); | |
442bd81c | 1678 | if (!jobserver) |
1679 | { | |
1680 | /* Avoid passing --jobserver-fd= and similar flags | |
1681 | unless jobserver mode is explicitly enabled. */ | |
1682 | putenv (xstrdup ("MAKEFLAGS=")); | |
1683 | putenv (xstrdup ("MFLAGS=")); | |
1684 | } | |
c335b5fe | 1685 | new_argv[0] = getenv ("MAKE"); |
1686 | if (!new_argv[0]) | |
1687 | new_argv[0] = "make"; | |
cba6710d | 1688 | new_argv[1] = "-f"; |
1689 | new_argv[2] = makefile; | |
442bd81c | 1690 | i = 3; |
1691 | if (!jobserver) | |
1692 | { | |
1693 | snprintf (jobs, 31, "-j%d", parallel); | |
1694 | new_argv[i++] = jobs; | |
1695 | } | |
1696 | new_argv[i++] = "all"; | |
1697 | new_argv[i++] = NULL; | |
39ef03bb | 1698 | pex = collect_execute (new_argv[0], CONST_CAST (char **, new_argv), |
1699 | NULL, NULL, PEX_SEARCH, false); | |
1700 | do_wait (new_argv[0], pex); | |
eb9ccb01 | 1701 | maybe_unlink (makefile); |
4062f557 | 1702 | makefile = NULL; |
4fe86c66 | 1703 | for (i = 0; i < nr; ++i) |
eb9ccb01 | 1704 | maybe_unlink (input_names[i]); |
cba6710d | 1705 | } |
1706 | for (i = 0; i < nr; ++i) | |
1707 | { | |
1708 | fputs (output_names[i], stdout); | |
264cbb51 | 1709 | putc ('\n', stdout); |
cba6710d | 1710 | free (input_names[i]); |
264cbb51 | 1711 | } |
6dc407e1 | 1712 | if (!skip_debug) |
1713 | { | |
1714 | for (i = 0; i < ltoobj_argc; ++i) | |
1715 | if (early_debug_object_names[i] != NULL) | |
1716 | printf ("%s\n", early_debug_object_names[i]); | |
1717 | } | |
4062f557 | 1718 | nr = 0; |
747c1878 | 1719 | free (ltrans_priorities); |
cba6710d | 1720 | free (output_names); |
6dc407e1 | 1721 | output_names = NULL; |
1722 | free (early_debug_object_names); | |
1723 | early_debug_object_names = NULL; | |
cba6710d | 1724 | free (input_names); |
7bfefa9d | 1725 | free (list_option_full); |
eefcf076 | 1726 | obstack_free (&env_obstack, NULL); |
7bfefa9d | 1727 | } |
b84346c6 | 1728 | |
77415571 | 1729 | finish: |
e02afbb7 | 1730 | XDELETE (lto_argv); |
b84346c6 | 1731 | obstack_free (&argv_obstack, NULL); |
7bfefa9d | 1732 | } |
1733 | ||
1734 | ||
1735 | /* Entry point. */ | |
1736 | ||
1737 | int | |
1738 | main (int argc, char *argv[]) | |
1739 | { | |
0b4f4daf | 1740 | const char *p; |
1741 | ||
25faed34 | 1742 | init_opts_obstack (); |
ba30d337 | 1743 | |
0b4f4daf | 1744 | p = argv[0] + strlen (argv[0]); |
1745 | while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1])) | |
1746 | --p; | |
1747 | progname = p; | |
1748 | ||
1749 | xmalloc_set_program_name (progname); | |
1750 | ||
7bfefa9d | 1751 | gcc_init_libintl (); |
1752 | ||
0b4f4daf | 1753 | diagnostic_initialize (global_dc, 0); |
1754 | ||
bb7acc76 | 1755 | if (atexit (lto_wrapper_cleanup) != 0) |
c05be867 | 1756 | fatal_error (input_location, "atexit failed"); |
bb7acc76 | 1757 | |
c04a3a63 | 1758 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) |
1759 | signal (SIGINT, fatal_signal); | |
1760 | #ifdef SIGHUP | |
1761 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
1762 | signal (SIGHUP, fatal_signal); | |
1763 | #endif | |
1764 | if (signal (SIGTERM, SIG_IGN) != SIG_IGN) | |
1765 | signal (SIGTERM, fatal_signal); | |
1766 | #ifdef SIGPIPE | |
1767 | if (signal (SIGPIPE, SIG_IGN) != SIG_IGN) | |
1768 | signal (SIGPIPE, fatal_signal); | |
1769 | #endif | |
1770 | #ifdef SIGCHLD | |
1771 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will | |
1772 | receive the signal. A different setting is inheritable */ | |
1773 | signal (SIGCHLD, SIG_DFL); | |
1774 | #endif | |
1775 | ||
7bfefa9d | 1776 | /* We may be called with all the arguments stored in some file and |
1777 | passed with @file. Expand them into argv before processing. */ | |
1778 | expandargv (&argc, &argv); | |
00d389c8 | 1779 | |
c8c65e07 | 1780 | run_gcc (argc, argv); |
7bfefa9d | 1781 | |
1782 | return 0; | |
1783 | } |