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ed1f651b | 1 | /* Compiler driver program that can handle many languages. |
21fa2a29 | 2 | Copyright (C) 1987-2016 Free Software Foundation, Inc. |
ed1f651b | 3 | |
1322177d | 4 | This file is part of GCC. |
ed1f651b | 5 | |
1322177d LB |
6 | GCC is free software; you can redistribute it and/or modify it under |
7 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 8 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 9 | version. |
ed1f651b | 10 | |
1322177d LB |
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
ed1f651b RS |
15 | |
16 | You should have received a copy of the GNU General Public License | |
9dcd6f09 | 17 | along with GCC; see the file COPYING3. If not see |
8a554c70 | 18 | <http://www.gnu.org/licenses/>. */ |
ed1f651b RS |
19 | |
20 | /* This program is the user interface to the C compiler and possibly to | |
21 | other compilers. It is used because compilation is a complicated procedure | |
22 | which involves running several programs and passing temporary files between | |
23 | them, forwarding the users switches to those programs selectively, | |
24 | and deleting the temporary files at the end. | |
25 | ||
26 | CC recognizes how to compile each input file by suffixes in the file names. | |
27 | Once it knows which kind of compilation to perform, the procedure for | |
28 | compilation is specified by a string called a "spec". */ | |
c5c76735 | 29 | |
e9a25f70 | 30 | #include "config.h" |
670ee920 | 31 | #include "system.h" |
4977bab6 | 32 | #include "coretypes.h" |
1713a69f | 33 | #include "multilib.h" /* before tm.h */ |
4977bab6 | 34 | #include "tm.h" |
ed5b9f96 | 35 | #include "xregex.h" |
17248a6b | 36 | #include "obstack.h" |
ab87f8c8 | 37 | #include "intl.h" |
460ee112 | 38 | #include "prefix.h" |
9257393c | 39 | #include "gcc.h" |
6afbc885 | 40 | #include "diagnostic.h" |
8a63621f | 41 | #include "flags.h" |
14c7833c | 42 | #include "opts.h" |
a7d0d30f | 43 | #include "params.h" |
ba78087b | 44 | #include "filenames.h" |
93ebf1fd | 45 | #include "spellcheck.h" |
c10d53dd | 46 | |
9376dd63 DM |
47 | \f |
48 | ||
49 | /* Manage the manipulation of env vars. | |
50 | ||
51 | We poison "getenv" and "putenv", so that all enviroment-handling is | |
52 | done through this class. Note that poisoning happens in the | |
53 | preprocessor at the identifier level, and doesn't distinguish between | |
54 | env.getenv (); | |
55 | and | |
56 | getenv (); | |
57 | Hence we need to use "get" for the accessor method, not "getenv". */ | |
58 | ||
59 | class env_manager | |
60 | { | |
61 | public: | |
62 | void init (bool can_restore, bool debug); | |
63 | const char *get (const char *name); | |
64 | void xput (const char *string); | |
65 | void restore (); | |
66 | ||
67 | private: | |
68 | bool m_can_restore; | |
69 | bool m_debug; | |
70 | struct kv | |
71 | { | |
72 | char *m_key; | |
73 | char *m_value; | |
74 | }; | |
75 | vec<kv> m_keys; | |
76 | ||
77 | }; | |
78 | ||
79 | /* The singleton instance of class env_manager. */ | |
80 | ||
81 | static env_manager env; | |
82 | ||
83 | /* Initializer for class env_manager. | |
84 | ||
85 | We can't do this as a constructor since we have a statically | |
86 | allocated instance ("env" above). */ | |
87 | ||
88 | void | |
89 | env_manager::init (bool can_restore, bool debug) | |
90 | { | |
91 | m_can_restore = can_restore; | |
92 | m_debug = debug; | |
93 | } | |
94 | ||
95 | /* Get the value of NAME within the environment. Essentially | |
96 | a wrapper for ::getenv, but adding logging, and the possibility | |
97 | of caching results. */ | |
98 | ||
99 | const char * | |
100 | env_manager::get (const char *name) | |
101 | { | |
102 | const char *result = ::getenv (name); | |
103 | if (m_debug) | |
104 | fprintf (stderr, "env_manager::getenv (%s) -> %s\n", name, result); | |
105 | return result; | |
106 | } | |
107 | ||
108 | /* Put the given KEY=VALUE entry STRING into the environment. | |
109 | If the env_manager was initialized with CAN_RESTORE set, then | |
110 | also record the old value of KEY within the environment, so that it | |
111 | can be later restored. */ | |
112 | ||
113 | void | |
114 | env_manager::xput (const char *string) | |
115 | { | |
116 | if (m_debug) | |
117 | fprintf (stderr, "env_manager::xput (%s)\n", string); | |
118 | if (verbose_flag) | |
119 | fnotice (stderr, "%s\n", string); | |
120 | ||
121 | if (m_can_restore) | |
122 | { | |
123 | char *equals = strchr (const_cast <char *> (string), '='); | |
124 | gcc_assert (equals); | |
125 | ||
126 | struct kv kv; | |
c25eec8f | 127 | kv.m_key = xstrndup (string, equals - string); |
9376dd63 DM |
128 | const char *cur_value = ::getenv (kv.m_key); |
129 | if (m_debug) | |
130 | fprintf (stderr, "saving old value: %s\n",cur_value); | |
131 | kv.m_value = cur_value ? xstrdup (cur_value) : NULL; | |
132 | m_keys.safe_push (kv); | |
133 | } | |
134 | ||
135 | ::putenv (CONST_CAST (char *, string)); | |
136 | } | |
137 | ||
138 | /* Undo any xputenv changes made since last restore. | |
139 | Can only be called if the env_manager was initialized with | |
140 | CAN_RESTORE enabled. */ | |
141 | ||
142 | void | |
143 | env_manager::restore () | |
144 | { | |
145 | unsigned int i; | |
146 | struct kv *item; | |
147 | ||
148 | gcc_assert (m_can_restore); | |
149 | ||
150 | FOR_EACH_VEC_ELT_REVERSE (m_keys, i, item) | |
151 | { | |
152 | if (m_debug) | |
153 | printf ("restoring saved key: %s value: %s\n", item->m_key, item->m_value); | |
154 | if (item->m_value) | |
155 | ::setenv (item->m_key, item->m_value, 1); | |
156 | else | |
157 | ::unsetenv (item->m_key); | |
158 | free (item->m_key); | |
159 | free (item->m_value); | |
160 | } | |
161 | ||
162 | m_keys.truncate (0); | |
163 | } | |
164 | ||
165 | /* Forbid other uses of getenv and putenv. */ | |
166 | #if (GCC_VERSION >= 3000) | |
167 | #pragma GCC poison getenv putenv | |
168 | #endif | |
169 | ||
170 | \f | |
171 | ||
45936a85 DD |
172 | /* By default there is no special suffix for target executables. */ |
173 | /* FIXME: when autoconf is fixed, remove the host check - dj */ | |
174 | #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX) | |
175 | #define HAVE_TARGET_EXECUTABLE_SUFFIX | |
ed1f651b | 176 | #endif |
f6ec7e54 | 177 | |
45936a85 DD |
178 | /* By default there is no special suffix for host executables. */ |
179 | #ifdef HOST_EXECUTABLE_SUFFIX | |
180 | #define HAVE_HOST_EXECUTABLE_SUFFIX | |
f70165f6 | 181 | #else |
45936a85 DD |
182 | #define HOST_EXECUTABLE_SUFFIX "" |
183 | #endif | |
184 | ||
185 | /* By default, the suffix for target object files is ".o". */ | |
186 | #ifdef TARGET_OBJECT_SUFFIX | |
187 | #define HAVE_TARGET_OBJECT_SUFFIX | |
188 | #else | |
189 | #define TARGET_OBJECT_SUFFIX ".o" | |
ed7dae04 RK |
190 | #endif |
191 | ||
8b60264b | 192 | static const char dir_separator_str[] = { DIR_SEPARATOR, 0 }; |
48ff801b | 193 | |
512b62fb JM |
194 | /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */ |
195 | #ifndef LIBRARY_PATH_ENV | |
196 | #define LIBRARY_PATH_ENV "LIBRARY_PATH" | |
197 | #endif | |
198 | ||
ed1f651b RS |
199 | /* If a stage of compilation returns an exit status >= 1, |
200 | compilation of that file ceases. */ | |
201 | ||
202 | #define MIN_FATAL_STATUS 1 | |
203 | ||
69927b59 NB |
204 | /* Flag set by cppspec.c to 1. */ |
205 | int is_cpp_driver; | |
206 | ||
110abdbc | 207 | /* Flag set to nonzero if an @file argument has been supplied to gcc. */ |
2091ff66 NF |
208 | static bool at_file_supplied; |
209 | ||
f5fa9a5b PE |
210 | /* Definition of string containing the arguments given to configure. */ |
211 | #include "configargs.h" | |
212 | ||
b8468bc7 NC |
213 | /* Flag saying to print the command line options understood by gcc and its |
214 | sub-processes. */ | |
215 | ||
216 | static int print_help_list; | |
217 | ||
41fd0f9b RAE |
218 | /* Flag saying to print the version of gcc and its sub-processes. */ |
219 | ||
220 | static int print_version; | |
221 | ||
99f78cdd IR |
222 | /* Flag indicating whether we should ONLY print the command and |
223 | arguments (like verbose_flag) without executing the command. | |
224 | Displayed arguments are quoted so that the generated command | |
225 | line is suitable for execution. This is intended for use in | |
226 | shell scripts to capture the driver-generated command line. */ | |
227 | static int verbose_only_flag; | |
228 | ||
c662432e | 229 | /* Flag indicating how to print command line options of sub-processes. */ |
91606ce2 | 230 | |
c662432e | 231 | static int print_subprocess_help; |
91606ce2 | 232 | |
b78e932d L |
233 | /* Linker suffix passed to -fuse-ld=... */ |
234 | static const char *use_ld; | |
235 | ||
bdde878c AO |
236 | /* Whether we should report subprocess execution times to a file. */ |
237 | ||
238 | FILE *report_times_to_file = NULL; | |
239 | ||
4977bab6 ZW |
240 | /* Nonzero means place this string before uses of /, so that include |
241 | and library files can be found in an alternate location. */ | |
242 | ||
db720d9a | 243 | #ifdef TARGET_SYSTEM_ROOT |
9376dd63 | 244 | #define DEFAULT_TARGET_SYSTEM_ROOT (TARGET_SYSTEM_ROOT) |
db720d9a | 245 | #else |
9376dd63 | 246 | #define DEFAULT_TARGET_SYSTEM_ROOT (0) |
db720d9a | 247 | #endif |
9376dd63 | 248 | static const char *target_system_root = DEFAULT_TARGET_SYSTEM_ROOT; |
4977bab6 | 249 | |
047d636f DJ |
250 | /* Nonzero means pass the updated target_system_root to the compiler. */ |
251 | ||
252 | static int target_system_root_changed; | |
253 | ||
e7f13528 GP |
254 | /* Nonzero means append this string to target_system_root. */ |
255 | ||
256 | static const char *target_sysroot_suffix = 0; | |
257 | ||
258 | /* Nonzero means append this string to target_system_root for headers. */ | |
259 | ||
260 | static const char *target_sysroot_hdrs_suffix = 0; | |
261 | ||
ed1f651b RS |
262 | /* Nonzero means write "temp" files in source directory |
263 | and use the source file's name in them, and don't delete them. */ | |
264 | ||
14fdc613 MM |
265 | static enum save_temps { |
266 | SAVE_TEMPS_NONE, /* no -save-temps */ | |
267 | SAVE_TEMPS_CWD, /* -save-temps in current directory */ | |
268 | SAVE_TEMPS_OBJ /* -save-temps in object directory */ | |
269 | } save_temps_flag; | |
270 | ||
271 | /* Output file to use to get the object directory for -save-temps=obj */ | |
272 | static char *save_temps_prefix = 0; | |
273 | static size_t save_temps_length = 0; | |
ed1f651b | 274 | |
53117a2f | 275 | /* The compiler version. */ |
ed1f651b | 276 | |
3b304f5b | 277 | static const char *compiler_version; |
53117a2f | 278 | |
1401cf37 | 279 | /* The target version. */ |
53117a2f | 280 | |
37a4aa31 | 281 | static const char *const spec_version = DEFAULT_TARGET_VERSION; |
ed1f651b | 282 | |
1401cf37 | 283 | /* The target machine. */ |
ed1f651b | 284 | |
878f32c3 | 285 | static const char *spec_machine = DEFAULT_TARGET_MACHINE; |
fc8b3540 | 286 | static const char *spec_host_machine = DEFAULT_REAL_TARGET_MACHINE; |
ed1f651b | 287 | |
64186aad TS |
288 | /* List of offload targets. Separated by colon. Empty string for |
289 | -foffload=disable. */ | |
c713ddc0 BS |
290 | |
291 | static char *offload_targets = NULL; | |
292 | ||
004fd4d5 RS |
293 | /* Nonzero if cross-compiling. |
294 | When -b is used, the value comes from the `specs' file. */ | |
295 | ||
2989d30c | 296 | #ifdef CROSS_DIRECTORY_STRUCTURE |
3b304f5b | 297 | static const char *cross_compile = "1"; |
004fd4d5 | 298 | #else |
3b304f5b | 299 | static const char *cross_compile = "0"; |
004fd4d5 RS |
300 | #endif |
301 | ||
14a774a9 RK |
302 | /* Greatest exit code of sub-processes that has been encountered up to |
303 | now. */ | |
304 | static int greatest_status = 1; | |
305 | ||
ed1f651b RS |
306 | /* This is the obstack which we use to allocate many strings. */ |
307 | ||
308 | static struct obstack obstack; | |
309 | ||
b3865ca9 | 310 | /* This is the obstack to build an environment variable to pass to |
6dc42e49 | 311 | collect2 that describes all of the relevant switches of what to |
b3865ca9 RS |
312 | pass the compiler in building the list of pointers to constructors |
313 | and destructors. */ | |
314 | ||
315 | static struct obstack collect_obstack; | |
316 | ||
99360286 DE |
317 | /* Forward declaration for prototypes. */ |
318 | struct path_prefix; | |
76391e5a | 319 | struct prefix_list; |
99360286 | 320 | |
1d088dee AJ |
321 | static void init_spec (void); |
322 | static void store_arg (const char *, int, int); | |
fe7df9c4 | 323 | static void insert_wrapper (const char *); |
1d088dee | 324 | static char *load_specs (const char *); |
d168aaee CB |
325 | static void read_specs (const char *, bool, bool); |
326 | static void set_spec (const char *, const char *, bool); | |
1d088dee | 327 | static struct compiler *lookup_compiler (const char *, size_t, const char *); |
00dcee0c AM |
328 | static char *build_search_list (const struct path_prefix *, const char *, |
329 | bool, bool); | |
e9c15f6e | 330 | static void xputenv (const char *); |
00dcee0c AM |
331 | static void putenv_from_prefixes (const struct path_prefix *, const char *, |
332 | bool); | |
1d088dee | 333 | static int access_check (const char *, int); |
00dcee0c | 334 | static char *find_a_file (const struct path_prefix *, const char *, int, bool); |
1d088dee | 335 | static void add_prefix (struct path_prefix *, const char *, const char *, |
1a5d37a1 | 336 | int, int, int); |
1d088dee | 337 | static void add_sysrooted_prefix (struct path_prefix *, const char *, |
1a5d37a1 | 338 | const char *, int, int, int); |
1d088dee AJ |
339 | static char *skip_whitespace (char *); |
340 | static void delete_if_ordinary (const char *); | |
341 | static void delete_temp_files (void); | |
342 | static void delete_failure_queue (void); | |
343 | static void clear_failure_queue (void); | |
344 | static int check_live_switch (int, int); | |
345 | static const char *handle_braces (const char *); | |
346 | static inline bool input_suffix_matches (const char *, const char *); | |
347 | static inline bool switch_matches (const char *, const char *, int); | |
348 | static inline void mark_matching_switches (const char *, const char *, int); | |
349 | static inline void process_marked_switches (void); | |
350 | static const char *process_brace_body (const char *, const char *, const char *, int, int); | |
351 | static const struct spec_function *lookup_spec_function (const char *); | |
352 | static const char *eval_spec_function (const char *, const char *); | |
de5a5fa1 | 353 | static const char *handle_spec_function (const char *, bool *); |
1d088dee AJ |
354 | static char *save_string (const char *, int); |
355 | static void set_collect_gcc_options (void); | |
356 | static int do_spec_1 (const char *, int, const char *); | |
357 | static int do_spec_2 (const char *); | |
358 | static void do_option_spec (const char *, const char *); | |
359 | static void do_self_spec (const char *); | |
360 | static const char *find_file (const char *); | |
00dcee0c | 361 | static int is_directory (const char *, bool); |
d168aaee | 362 | static const char *validate_switches (const char *, bool); |
1d088dee | 363 | static void validate_all_switches (void); |
d168aaee | 364 | static inline void validate_switches_from_spec (const char *, bool); |
1d088dee | 365 | static void give_switch (int, int); |
1d088dee AJ |
366 | static int default_arg (const char *, int); |
367 | static void set_multilib_dir (void); | |
368 | static void print_multilib_info (void); | |
369 | static void perror_with_name (const char *); | |
1d088dee AJ |
370 | static void display_help (void); |
371 | static void add_preprocessor_option (const char *, int); | |
372 | static void add_assembler_option (const char *, int); | |
373 | static void add_linker_option (const char *, int); | |
60cf253a | 374 | static void process_command (unsigned int, struct cl_decoded_option *); |
1d088dee AJ |
375 | static int execute (void); |
376 | static void alloc_args (void); | |
377 | static void clear_args (void); | |
2dec80c7 | 378 | static void fatal_signal (int); |
328163dc | 379 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) |
1d088dee AJ |
380 | static void init_gcc_specs (struct obstack *, const char *, const char *, |
381 | const char *); | |
6894579f | 382 | #endif |
40cdfca6 | 383 | #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
1d088dee | 384 | static const char *convert_filename (const char *, int, int); |
40cdfca6 | 385 | #endif |
f3226a90 | 386 | |
1120a850 | 387 | static void try_generate_repro (const char **argv); |
30d8946b | 388 | static const char *getenv_spec_function (int, const char **); |
1d088dee AJ |
389 | static const char *if_exists_spec_function (int, const char **); |
390 | static const char *if_exists_else_spec_function (int, const char **); | |
de5a5fa1 | 391 | static const char *sanitize_spec_function (int, const char **); |
3dd53121 | 392 | static const char *replace_outfile_spec_function (int, const char **); |
2642f659 | 393 | static const char *remove_outfile_spec_function (int, const char **); |
ed5b9f96 | 394 | static const char *version_compare_spec_function (int, const char **); |
953ff289 | 395 | static const char *include_spec_function (int, const char **); |
4adbd5dd | 396 | static const char *find_file_spec_function (int, const char **); |
c1ce46a5 | 397 | static const char *find_plugindir_spec_function (int, const char **); |
a0f87454 | 398 | static const char *print_asm_header_spec_function (int, const char **); |
2153915d AO |
399 | static const char *compare_debug_dump_opt_spec_function (int, const char **); |
400 | static const char *compare_debug_self_opt_spec_function (int, const char **); | |
401 | static const char *compare_debug_auxbase_opt_spec_function (int, const char **); | |
9a37bc07 | 402 | static const char *pass_through_libs_spec_func (int, const char **); |
99ea153e | 403 | static const char *replace_extension_spec_func (int, const char **); |
cf7416c3 | 404 | static const char *greater_than_spec_func (int, const char **); |
3c27ce4c | 405 | static char *convert_white_space (char *); |
ed1f651b | 406 | \f |
d991c721 BK |
407 | /* The Specs Language |
408 | ||
409 | Specs are strings containing lines, each of which (if not blank) | |
ed1f651b RS |
410 | is made up of a program name, and arguments separated by spaces. |
411 | The program name must be exact and start from root, since no path | |
412 | is searched and it is unreliable to depend on the current working directory. | |
413 | Redirection of input or output is not supported; the subprograms must | |
414 | accept filenames saying what files to read and write. | |
415 | ||
416 | In addition, the specs can contain %-sequences to substitute variable text | |
417 | or for conditional text. Here is a table of all defined %-sequences. | |
418 | Note that spaces are not generated automatically around the results of | |
419 | expanding these sequences; therefore, you can concatenate them together | |
420 | or with constant text in a single argument. | |
421 | ||
422 | %% substitute one % into the program name or argument. | |
423 | %i substitute the name of the input file being processed. | |
424 | %b substitute the basename of the input file being processed. | |
425 | This is the substring up to (and not including) the last period | |
14fdc613 | 426 | and not including the directory unless -save-temps was specified |
3beb864c | 427 | to put temporaries in a different location. |
ea414c97 | 428 | %B same as %b, but include the file suffix (text after the last period). |
dd75c292 CB |
429 | %gSUFFIX |
430 | substitute a file name that has suffix SUFFIX and is chosen | |
431 | once per compilation, and mark the argument a la %d. To reduce | |
432 | exposure to denial-of-service attacks, the file name is now | |
433 | chosen in a way that is hard to predict even when previously | |
434 | chosen file names are known. For example, `%g.s ... %g.o ... %g.s' | |
435 | might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches | |
a92dd235 | 436 | the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it |
a1d9074c TT |
437 | had been pre-processed. Previously, %g was simply substituted |
438 | with a file name chosen once per compilation, without regard | |
439 | to any appended suffix (which was therefore treated just like | |
440 | ordinary text), making such attacks more likely to succeed. | |
4977bab6 ZW |
441 | %|SUFFIX |
442 | like %g, but if -pipe is in effect, expands simply to "-". | |
443 | %mSUFFIX | |
444 | like %g, but if -pipe is in effect, expands to nothing. (We have both | |
445 | %| and %m to accommodate differences between system assemblers; see | |
446 | the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.) | |
dd75c292 CB |
447 | %uSUFFIX |
448 | like %g, but generates a new temporary file name even if %uSUFFIX | |
449 | was already seen. | |
450 | %USUFFIX | |
451 | substitutes the last file name generated with %uSUFFIX, generating a | |
452 | new one if there is no such last file name. In the absence of any | |
453 | %uSUFFIX, this is just like %gSUFFIX, except they don't share | |
454 | the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s' | |
455 | would involve the generation of two distinct file names, one | |
456 | for each `%g.s' and another for each `%U.s'. Previously, %U was | |
457 | simply substituted with a file name chosen for the previous %u, | |
458 | without regard to any appended suffix. | |
49009afd JL |
459 | %jSUFFIX |
460 | substitutes the name of the HOST_BIT_BUCKET, if any, and if it is | |
461 | writable, and if save-temps is off; otherwise, substitute the name | |
462 | of a temporary file, just like %u. This temporary file is not | |
463 | meant for communication between processes, but rather as a junk | |
464 | disposal mechanism. | |
11972f66 NS |
465 | %.SUFFIX |
466 | substitutes .SUFFIX for the suffixes of a matched switch's args when | |
467 | it is subsequently output with %*. SUFFIX is terminated by the next | |
468 | space or %. | |
ed1f651b | 469 | %d marks the argument containing or following the %d as a |
026c3cfd | 470 | temporary file name, so that file will be deleted if GCC exits |
ed1f651b RS |
471 | successfully. Unlike %g, this contributes no text to the argument. |
472 | %w marks the argument containing or following the %w as the | |
473 | "output file" of this compilation. This puts the argument | |
474 | into the sequence of arguments that %o will substitute later. | |
17211ab5 | 475 | %V indicates that this compilation produces no "output file". |
ed1f651b RS |
476 | %W{...} |
477 | like %{...} but mark last argument supplied within | |
478 | as a file to be deleted on failure. | |
479 | %o substitutes the names of all the output files, with spaces | |
480 | automatically placed around them. You should write spaces | |
481 | around the %o as well or the results are undefined. | |
482 | %o is for use in the specs for running the linker. | |
483 | Input files whose names have no recognized suffix are not compiled | |
484 | at all, but they are included among the output files, so they will | |
485 | be linked. | |
dd75c292 | 486 | %O substitutes the suffix for object files. Note that this is |
a1d9074c TT |
487 | handled specially when it immediately follows %g, %u, or %U |
488 | (with or without a suffix argument) because of the need for | |
489 | those to form complete file names. The handling is such that | |
490 | %O is treated exactly as if it had already been substituted, | |
491 | except that %g, %u, and %U do not currently support additional | |
492 | SUFFIX characters following %O as they would following, for | |
493 | example, `.o'. | |
047d636f | 494 | %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot |
2b6dd222 JM |
495 | (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH |
496 | and -B options) and -imultilib as necessary. | |
ed1f651b RS |
497 | %s current argument is the name of a library or startup file of some sort. |
498 | Search for that file in a standard list of directories | |
499 | and substitute the full name found. | |
500 | %eSTR Print STR as an error message. STR is terminated by a newline. | |
501 | Use this when inconsistent options are detected. | |
09da1532 | 502 | %nSTR Print STR as a notice. STR is terminated by a newline. |
ed1f651b RS |
503 | %x{OPTION} Accumulate an option for %X. |
504 | %X Output the accumulated linker options specified by compilations. | |
c9ebacb8 | 505 | %Y Output the accumulated assembler options specified by compilations. |
57cb9b60 | 506 | %Z Output the accumulated preprocessor options specified by compilations. |
ed1f651b RS |
507 | %a process ASM_SPEC as a spec. |
508 | This allows config.h to specify part of the spec for running as. | |
509 | %A process ASM_FINAL_SPEC as a spec. A capital A is actually | |
510 | used here. This can be used to run a post-processor after the | |
9ec36da5 | 511 | assembler has done its job. |
48ff801b | 512 | %D Dump out a -L option for each directory in startfile_prefixes. |
60103a34 | 513 | If multilib_dir is set, extra entries are generated with it affixed. |
ed1f651b RS |
514 | %l process LINK_SPEC as a spec. |
515 | %L process LIB_SPEC as a spec. | |
3cd50158 | 516 | %M Output multilib_os_dir. |
68d69835 | 517 | %G process LIBGCC_SPEC as a spec. |
380e5ca4 MM |
518 | %R Output the concatenation of target_system_root and |
519 | target_sysroot_suffix. | |
ed1f651b RS |
520 | %S process STARTFILE_SPEC as a spec. A capital S is actually used here. |
521 | %E process ENDFILE_SPEC as a spec. A capital E is actually used here. | |
9db0819e | 522 | %C process CPP_SPEC as a spec. |
ed1f651b RS |
523 | %1 process CC1_SPEC as a spec. |
524 | %2 process CC1PLUS_SPEC as a spec. | |
525 | %* substitute the variable part of a matched option. (See below.) | |
526 | Note that each comma in the substituted string is replaced by | |
25990163 NC |
527 | a single space. A space is appended after the last substition |
528 | unless there is more text in current sequence. | |
4977bab6 ZW |
529 | %<S remove all occurrences of -S from the command line. |
530 | Note - this command is position dependent. % commands in the | |
531 | spec string before this one will see -S, % commands in the | |
532 | spec string after this one will not. | |
96f5b137 | 533 | %>S Similar to "%<S", but keep it in the GCC command line. |
4977bab6 ZW |
534 | %<S* remove all occurrences of all switches beginning with -S from the |
535 | command line. | |
f3226a90 JT |
536 | %:function(args) |
537 | Call the named function FUNCTION, passing it ARGS. ARGS is | |
538 | first processed as a nested spec string, then split into an | |
539 | argument vector in the usual fashion. The function returns | |
540 | a string which is processed as if it had appeared literally | |
541 | as part of the current spec. | |
ee618c17 | 542 | %{S} substitutes the -S switch, if that switch was given to GCC. |
ed1f651b RS |
543 | If that switch was not specified, this substitutes nothing. |
544 | Here S is a metasyntactic variable. | |
ee618c17 | 545 | %{S*} substitutes all the switches specified to GCC whose names start |
196a37f4 | 546 | with -S. This is used for -o, -I, etc; switches that take |
ee618c17 | 547 | arguments. GCC considers `-o foo' as being one switch whose |
ed1f651b RS |
548 | name starts with `o'. %{o*} would substitute this text, |
549 | including the space; thus, two arguments would be generated. | |
196a37f4 | 550 | %{S*&T*} likewise, but preserve order of S and T options (the order |
1d088dee AJ |
551 | of S and T in the spec is not significant). Can be any number |
552 | of ampersand-separated variables; for each the wild card is | |
553 | optional. Useful for CPP as %{D*&U*&A*}. | |
4977bab6 | 554 | |
ee618c17 BE |
555 | %{S:X} substitutes X, if the -S switch was given to GCC. |
556 | %{!S:X} substitutes X, if the -S switch was NOT given to GCC. | |
4977bab6 | 557 | %{S*:X} substitutes X if one or more switches whose names start |
ee618c17 | 558 | with -S was given to GCC. Normally X is substituted only |
4977bab6 ZW |
559 | once, no matter how many such switches appeared. However, |
560 | if %* appears somewhere in X, then X will be substituted | |
561 | once for each matching switch, with the %* replaced by the | |
25990163 NC |
562 | part of that switch that matched the '*'. A space will be |
563 | appended after the last substition unless there is more | |
564 | text in current sequence. | |
4977bab6 ZW |
565 | %{.S:X} substitutes X, if processing a file with suffix S. |
566 | %{!.S:X} substitutes X, if NOT processing a file with suffix S. | |
48137d59 GK |
567 | %{,S:X} substitutes X, if processing a file which will use spec S. |
568 | %{!,S:X} substitutes X, if NOT processing a file which will use spec S. | |
3beb864c | 569 | |
ee618c17 | 570 | %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be |
48137d59 GK |
571 | combined with '!', '.', ',', and '*' as above binding stronger |
572 | than the OR. | |
4977bab6 ZW |
573 | If %* appears in X, all of the alternatives must be starred, and |
574 | only the first matching alternative is substituted. | |
de5a5fa1 MP |
575 | %{%:function(args):X} |
576 | Call function named FUNCTION with args ARGS. If the function | |
577 | returns non-NULL, then X is substituted, if it returns | |
578 | NULL, it isn't substituted. | |
ee618c17 BE |
579 | %{S:X; if S was given to GCC, substitutes X; |
580 | T:Y; else if T was given to GCC, substitutes Y; | |
4977bab6 | 581 | :D} else substitutes D. There can be as many clauses as you need. |
48137d59 | 582 | This may be combined with '.', '!', ',', '|', and '*' as above. |
4977bab6 | 583 | |
b3865ca9 | 584 | %(Spec) processes a specification defined in a specs file as *Spec: |
ed1f651b | 585 | |
4977bab6 | 586 | The conditional text X in a %{S:X} or similar construct may contain |
ed1f651b | 587 | other nested % constructs or spaces, or even newlines. They are |
4977bab6 ZW |
588 | processed as usual, as described above. Trailing white space in X is |
589 | ignored. White space may also appear anywhere on the left side of the | |
590 | colon in these constructs, except between . or * and the corresponding | |
591 | word. | |
ed1f651b | 592 | |
99ea153e | 593 | The -O, -f, -g, -m, and -W switches are handled specifically in these |
f5b0eb4e RK |
594 | constructs. If another value of -O or the negated form of a -f, -m, or |
595 | -W switch is found later in the command line, the earlier switch | |
6c396fb5 RK |
596 | value is ignored, except with {S*} where S is just one letter; this |
597 | passes all matching options. | |
f5b0eb4e | 598 | |
9bf09437 RH |
599 | The character | at the beginning of the predicate text is used to indicate |
600 | that a command should be piped to the following command, but only if -pipe | |
601 | is specified. | |
ed1f651b | 602 | |
ee618c17 | 603 | Note that it is built into GCC which switches take arguments and which |
ed1f651b RS |
604 | do not. You might think it would be useful to generalize this to |
605 | allow each compiler's spec to say which switches take arguments. But | |
ee618c17 | 606 | this cannot be done in a consistent fashion. GCC cannot even decide |
ed1f651b RS |
607 | which input files have been specified without knowing which switches |
608 | take arguments, and it must know which input files to compile in order | |
609 | to tell which compilers to run. | |
610 | ||
ee618c17 | 611 | GCC also knows implicitly that arguments starting in `-l' are to be |
ed1f651b RS |
612 | treated as compiler output files, and passed to the linker in their |
613 | proper position among the other output files. */ | |
614 | \f | |
0fef3fd0 | 615 | /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */ |
ed1f651b RS |
616 | |
617 | /* config.h can define ASM_SPEC to provide extra args to the assembler | |
618 | or extra switch-translations. */ | |
619 | #ifndef ASM_SPEC | |
620 | #define ASM_SPEC "" | |
621 | #endif | |
622 | ||
623 | /* config.h can define ASM_FINAL_SPEC to run a post processor after | |
624 | the assembler has run. */ | |
625 | #ifndef ASM_FINAL_SPEC | |
99ea153e SA |
626 | #define ASM_FINAL_SPEC \ |
627 | "%{gsplit-dwarf: \n\ | |
628 | objcopy --extract-dwo \ | |
629 | %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \ | |
630 | %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\ | |
631 | objcopy --strip-dwo \ | |
632 | %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \ | |
633 | }" | |
ed1f651b RS |
634 | #endif |
635 | ||
636 | /* config.h can define CPP_SPEC to provide extra args to the C preprocessor | |
637 | or extra switch-translations. */ | |
638 | #ifndef CPP_SPEC | |
639 | #define CPP_SPEC "" | |
640 | #endif | |
641 | ||
642 | /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus | |
643 | or extra switch-translations. */ | |
644 | #ifndef CC1_SPEC | |
645 | #define CC1_SPEC "" | |
646 | #endif | |
647 | ||
648 | /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus | |
649 | or extra switch-translations. */ | |
650 | #ifndef CC1PLUS_SPEC | |
651 | #define CC1PLUS_SPEC "" | |
652 | #endif | |
653 | ||
654 | /* config.h can define LINK_SPEC to provide extra args to the linker | |
655 | or extra switch-translations. */ | |
656 | #ifndef LINK_SPEC | |
657 | #define LINK_SPEC "" | |
658 | #endif | |
659 | ||
660 | /* config.h can define LIB_SPEC to override the default libraries. */ | |
661 | #ifndef LIB_SPEC | |
68d69835 JM |
662 | #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}" |
663 | #endif | |
664 | ||
7458026b ILT |
665 | /* When using -fsplit-stack we need to wrap pthread_create, in order |
666 | to initialize the stack guard. We always use wrapping, rather than | |
667 | shared library ordering, and we keep the wrapper function in | |
668 | libgcc. This is not yet a real spec, though it could become one; | |
669 | it is currently just stuffed into LINK_SPEC. FIXME: This wrapping | |
98906124 | 670 | only works with GNU ld and gold. */ |
402565b6 LB |
671 | #ifdef HAVE_GOLD_NON_DEFAULT_SPLIT_STACK |
672 | #define STACK_SPLIT_SPEC " %{fsplit-stack: -fuse-ld=gold --wrap=pthread_create}" | |
673 | #else | |
7458026b | 674 | #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}" |
402565b6 | 675 | #endif |
7458026b | 676 | |
7e8d1b2d | 677 | #ifndef LIBASAN_SPEC |
35814b03 JJ |
678 | #define STATIC_LIBASAN_LIBS \ |
679 | " %{static-libasan:%:include(libsanitizer.spec)%(link_libasan)}" | |
e60e09a0 | 680 | #ifdef LIBASAN_EARLY_SPEC |
35814b03 | 681 | #define LIBASAN_SPEC STATIC_LIBASAN_LIBS |
e60e09a0 | 682 | #elif defined(HAVE_LD_STATIC_DYNAMIC) |
7e8d1b2d | 683 | #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \ |
03d670c8 | 684 | "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \ |
35814b03 | 685 | STATIC_LIBASAN_LIBS |
7e8d1b2d | 686 | #else |
35814b03 | 687 | #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS |
7e8d1b2d L |
688 | #endif |
689 | #endif | |
690 | ||
e60e09a0 JJ |
691 | #ifndef LIBASAN_EARLY_SPEC |
692 | #define LIBASAN_EARLY_SPEC "" | |
693 | #endif | |
694 | ||
32b4b7f5 | 695 | #ifndef LIBTSAN_SPEC |
35814b03 JJ |
696 | #define STATIC_LIBTSAN_LIBS \ |
697 | " %{static-libtsan:%:include(libsanitizer.spec)%(link_libtsan)}" | |
a74db9bd | 698 | #ifdef LIBTSAN_EARLY_SPEC |
35814b03 | 699 | #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS |
a74db9bd | 700 | #elif defined(HAVE_LD_STATIC_DYNAMIC) |
32b4b7f5 | 701 | #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \ |
a74db9bd | 702 | "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \ |
35814b03 | 703 | STATIC_LIBTSAN_LIBS |
32b4b7f5 | 704 | #else |
35814b03 | 705 | #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS |
a74db9bd | 706 | #endif |
32b4b7f5 | 707 | #endif |
a74db9bd JJ |
708 | |
709 | #ifndef LIBTSAN_EARLY_SPEC | |
710 | #define LIBTSAN_EARLY_SPEC "" | |
32b4b7f5 DV |
711 | #endif |
712 | ||
9065ada9 | 713 | #ifndef LIBLSAN_SPEC |
35814b03 JJ |
714 | #define STATIC_LIBLSAN_LIBS \ |
715 | " %{static-liblsan:%:include(libsanitizer.spec)%(link_liblsan)}" | |
d30c7670 JJ |
716 | #ifdef LIBLSAN_EARLY_SPEC |
717 | #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS | |
718 | #elif defined(HAVE_LD_STATIC_DYNAMIC) | |
719 | #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \ | |
9065ada9 | 720 | "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \ |
d30c7670 | 721 | STATIC_LIBLSAN_LIBS |
9065ada9 | 722 | #else |
d30c7670 | 723 | #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS |
9065ada9 JJ |
724 | #endif |
725 | #endif | |
726 | ||
d30c7670 JJ |
727 | #ifndef LIBLSAN_EARLY_SPEC |
728 | #define LIBLSAN_EARLY_SPEC "" | |
729 | #endif | |
730 | ||
de5a5fa1 | 731 | #ifndef LIBUBSAN_SPEC |
35814b03 JJ |
732 | #define STATIC_LIBUBSAN_LIBS \ |
733 | " %{static-libubsan:%:include(libsanitizer.spec)%(link_libubsan)}" | |
9065ada9 | 734 | #ifdef HAVE_LD_STATIC_DYNAMIC |
de5a5fa1 MP |
735 | #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \ |
736 | "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \ | |
35814b03 | 737 | STATIC_LIBUBSAN_LIBS |
de5a5fa1 | 738 | #else |
35814b03 | 739 | #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS |
de5a5fa1 MP |
740 | #endif |
741 | #endif | |
742 | ||
29d7cbd1 RO |
743 | /* Linker options for compressed debug sections. */ |
744 | #if HAVE_LD_COMPRESS_DEBUG == 0 | |
745 | /* No linker support. */ | |
746 | #define LINK_COMPRESS_DEBUG_SPEC \ | |
747 | " %{gz*:%e-gz is not supported in this configuration} " | |
748 | #elif HAVE_LD_COMPRESS_DEBUG == 1 | |
749 | /* GNU style on input, GNU ld options. Reject, not useful. */ | |
750 | #define LINK_COMPRESS_DEBUG_SPEC \ | |
751 | " %{gz*:%e-gz is not supported in this configuration} " | |
752 | #elif HAVE_LD_COMPRESS_DEBUG == 2 | |
753 | /* GNU style, GNU gold options. */ | |
754 | #define LINK_COMPRESS_DEBUG_SPEC \ | |
755 | " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \ | |
756 | " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \ | |
757 | " %{gz=zlib:%e-gz=zlib is not supported in this configuration} " | |
758 | #elif HAVE_LD_COMPRESS_DEBUG == 3 | |
759 | /* ELF gABI style. */ | |
760 | #define LINK_COMPRESS_DEBUG_SPEC \ | |
761 | " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \ | |
762 | " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \ | |
763 | " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} " | |
764 | #else | |
765 | #error Unknown value for HAVE_LD_COMPRESS_DEBUG. | |
766 | #endif | |
767 | ||
68d69835 JM |
768 | /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is |
769 | included. */ | |
770 | #ifndef LIBGCC_SPEC | |
328163dc MA |
771 | #if defined(REAL_LIBGCC_SPEC) |
772 | #define LIBGCC_SPEC REAL_LIBGCC_SPEC | |
57642751 | 773 | #elif defined(LINK_LIBGCC_SPECIAL_1) |
68d69835 | 774 | /* Have gcc do the search for libgcc.a. */ |
ba2b7435 | 775 | #define LIBGCC_SPEC "libgcc.a%s" |
68d69835 | 776 | #else |
ba2b7435 | 777 | #define LIBGCC_SPEC "-lgcc" |
68d69835 | 778 | #endif |
ed1f651b RS |
779 | #endif |
780 | ||
781 | /* config.h can define STARTFILE_SPEC to override the default crt0 files. */ | |
782 | #ifndef STARTFILE_SPEC | |
783 | #define STARTFILE_SPEC \ | |
adcb8d7d | 784 | "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}" |
ed1f651b RS |
785 | #endif |
786 | ||
ed1f651b RS |
787 | /* config.h can define ENDFILE_SPEC to override the default crtn files. */ |
788 | #ifndef ENDFILE_SPEC | |
789 | #define ENDFILE_SPEC "" | |
790 | #endif | |
791 | ||
10da1131 BM |
792 | #ifndef LINKER_NAME |
793 | #define LINKER_NAME "collect2" | |
794 | #endif | |
795 | ||
c8aea42c PB |
796 | #ifdef HAVE_AS_DEBUG_PREFIX_MAP |
797 | #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}" | |
798 | #else | |
799 | #define ASM_MAP "" | |
800 | #endif | |
801 | ||
29d7cbd1 RO |
802 | /* Assembler options for compressed debug sections. */ |
803 | #if HAVE_LD_COMPRESS_DEBUG < 2 | |
804 | /* Reject if the linker cannot write compressed debug sections. */ | |
805 | #define ASM_COMPRESS_DEBUG_SPEC \ | |
806 | " %{gz*:%e-gz is not supported in this configuration} " | |
807 | #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */ | |
808 | #if HAVE_AS_COMPRESS_DEBUG == 0 | |
809 | /* No assembler support. Ignore silently. */ | |
810 | #define ASM_COMPRESS_DEBUG_SPEC \ | |
811 | " %{gz*:} " | |
812 | #elif HAVE_AS_COMPRESS_DEBUG == 1 | |
813 | /* GNU style, GNU as options. */ | |
814 | #define ASM_COMPRESS_DEBUG_SPEC \ | |
815 | " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \ | |
816 | " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \ | |
817 | " %{gz=zlib:%e-gz=zlib is not supported in this configuration} " | |
818 | #elif HAVE_AS_COMPRESS_DEBUG == 2 | |
819 | /* ELF gABI style. */ | |
820 | #define ASM_COMPRESS_DEBUG_SPEC \ | |
821 | " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \ | |
822 | " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \ | |
823 | " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} " | |
824 | #else | |
825 | #error Unknown value for HAVE_AS_COMPRESS_DEBUG. | |
826 | #endif | |
827 | #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */ | |
828 | ||
5f0e9ea2 GK |
829 | /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g' |
830 | to the assembler. */ | |
831 | #ifndef ASM_DEBUG_SPEC | |
b2ace8a4 JJ |
832 | # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \ |
833 | && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG) | |
c8aea42c PB |
834 | # define ASM_DEBUG_SPEC \ |
835 | (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \ | |
6782438d | 836 | ? "%{!g0:%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \ |
c7b94907 | 837 | : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP) |
b2ace8a4 JJ |
838 | # else |
839 | # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG) | |
c7b94907 | 840 | # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP |
b2ace8a4 JJ |
841 | # endif |
842 | # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) | |
c7b94907 | 843 | # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP |
5f0e9ea2 | 844 | # endif |
5f0e9ea2 GK |
845 | # endif |
846 | #endif | |
8a63621f JJ |
847 | #ifndef ASM_DEBUG_SPEC |
848 | # define ASM_DEBUG_SPEC "" | |
849 | #endif | |
5f0e9ea2 | 850 | |
ea414c97 ZW |
851 | /* Here is the spec for running the linker, after compiling all files. */ |
852 | ||
bbd7687d DM |
853 | /* This is overridable by the target in case they need to specify the |
854 | -lgcc and -lc order specially, yet not require them to override all | |
855 | of LINK_COMMAND_SPEC. */ | |
856 | #ifndef LINK_GCC_C_SEQUENCE_SPEC | |
857 | #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G" | |
858 | #endif | |
859 | ||
77008252 JJ |
860 | #ifndef LINK_SSP_SPEC |
861 | #ifdef TARGET_LIBC_PROVIDES_SSP | |
33eaef4b RO |
862 | #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \ |
863 | "|fstack-protector-strong|fstack-protector-explicit:}" | |
77008252 | 864 | #else |
33eaef4b RO |
865 | #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \ |
866 | "|fstack-protector-strong|fstack-protector-explicit" \ | |
867 | ":-lssp_nonshared -lssp}" | |
77008252 JJ |
868 | #endif |
869 | #endif | |
870 | ||
428b3812 L |
871 | #ifdef ENABLE_DEFAULT_PIE |
872 | #define NO_PIE_SPEC "no-pie|static" | |
873 | #define PIE_SPEC NO_PIE_SPEC "|r|shared:;" | |
874 | #define NO_FPIE1_SPEC "fno-pie" | |
875 | #define FPIE1_SPEC NO_FPIE1_SPEC ":;" | |
876 | #define NO_FPIE2_SPEC "fno-PIE" | |
877 | #define FPIE2_SPEC NO_FPIE2_SPEC ":;" | |
878 | #define NO_FPIE_SPEC NO_FPIE1_SPEC "|" NO_FPIE2_SPEC | |
879 | #define FPIE_SPEC NO_FPIE_SPEC ":;" | |
880 | #define NO_FPIC1_SPEC "fno-pic" | |
881 | #define FPIC1_SPEC NO_FPIC1_SPEC ":;" | |
882 | #define NO_FPIC2_SPEC "fno-PIC" | |
883 | #define FPIC2_SPEC NO_FPIC2_SPEC ":;" | |
884 | #define NO_FPIC_SPEC NO_FPIC1_SPEC "|" NO_FPIC2_SPEC | |
885 | #define FPIC_SPEC NO_FPIC_SPEC ":;" | |
886 | #define NO_FPIE1_AND_FPIC1_SPEC NO_FPIE1_SPEC "|" NO_FPIC1_SPEC | |
887 | #define FPIE1_OR_FPIC1_SPEC NO_FPIE1_AND_FPIC1_SPEC ":;" | |
888 | #define NO_FPIE2_AND_FPIC2_SPEC NO_FPIE2_SPEC "|" NO_FPIC2_SPEC | |
889 | #define FPIE2_OR_FPIC2_SPEC NO_FPIE2_AND_FPIC2_SPEC ":;" | |
890 | #define NO_FPIE_AND_FPIC_SPEC NO_FPIE_SPEC "|" NO_FPIC_SPEC | |
891 | #define FPIE_OR_FPIC_SPEC NO_FPIE_AND_FPIC_SPEC ":;" | |
892 | #else | |
893 | #define PIE_SPEC "pie" | |
894 | #define NO_PIE_SPEC PIE_SPEC "|r|shared:;" | |
895 | #define FPIE1_SPEC "fpie" | |
896 | #define NO_FPIE1_SPEC FPIE1_SPEC ":;" | |
897 | #define FPIE2_SPEC "fPIE" | |
898 | #define NO_FPIE2_SPEC FPIE2_SPEC ":;" | |
899 | #define FPIE_SPEC FPIE1_SPEC "|" FPIE2_SPEC | |
900 | #define NO_FPIE_SPEC FPIE_SPEC ":;" | |
901 | #define FPIC1_SPEC "fpic" | |
902 | #define NO_FPIC1_SPEC FPIC1_SPEC ":;" | |
903 | #define FPIC2_SPEC "fPIC" | |
904 | #define NO_FPIC2_SPEC FPIC2_SPEC ":;" | |
905 | #define FPIC_SPEC FPIC1_SPEC "|" FPIC2_SPEC | |
906 | #define NO_FPIC_SPEC FPIC_SPEC ":;" | |
907 | #define FPIE1_OR_FPIC1_SPEC FPIE1_SPEC "|" FPIC1_SPEC | |
908 | #define NO_FPIE1_AND_FPIC1_SPEC FPIE1_OR_FPIC1_SPEC ":;" | |
909 | #define FPIE2_OR_FPIC2_SPEC FPIE2_SPEC "|" FPIC2_SPEC | |
910 | #define NO_FPIE2_AND_FPIC2_SPEC FPIE1_OR_FPIC2_SPEC ":;" | |
911 | #define FPIE_OR_FPIC_SPEC FPIE_SPEC "|" FPIC_SPEC | |
912 | #define NO_FPIE_AND_FPIC_SPEC FPIE_OR_FPIC_SPEC ":;" | |
913 | #endif | |
914 | ||
24a4dd31 JJ |
915 | #ifndef LINK_PIE_SPEC |
916 | #ifdef HAVE_LD_PIE | |
df2a1cc4 | 917 | #ifndef LD_PIE_SPEC |
428b3812 | 918 | #define LD_PIE_SPEC "-pie" |
df2a1cc4 | 919 | #endif |
24a4dd31 | 920 | #else |
428b3812 | 921 | #define LD_PIE_SPEC "" |
24a4dd31 | 922 | #endif |
428b3812 | 923 | #define LINK_PIE_SPEC "%{no-pie:} " "%{" PIE_SPEC ":" LD_PIE_SPEC "} " |
24a4dd31 JJ |
924 | #endif |
925 | ||
cd533689 PP |
926 | #ifndef LINK_BUILDID_SPEC |
927 | # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID) | |
928 | # define LINK_BUILDID_SPEC "%{!r:--build-id} " | |
929 | # endif | |
930 | #endif | |
931 | ||
55b46574 | 932 | /* Conditional to test whether the LTO plugin is used or not. |
56e22cab JH |
933 | FIXME: For slim LTO we will need to enable plugin unconditionally. This |
934 | still cause problems with PLUGIN_LD != LD and when plugin is built but | |
935 | not useable. For GCC 4.6 we don't support slim LTO and thus we can enable | |
936 | plugin only when LTO is enabled. We still honor explicit | |
55b46574 RO |
937 | -fuse-linker-plugin if the linker used understands -plugin. */ |
938 | ||
939 | /* The linker has some plugin support. */ | |
940 | #if HAVE_LTO_PLUGIN > 0 | |
941 | /* The linker used has full plugin support, use LTO plugin by default. */ | |
942 | #if HAVE_LTO_PLUGIN == 2 | |
f3ba16d0 | 943 | #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto" |
56e22cab | 944 | #define PLUGIN_COND_CLOSE "}" |
96bdf9b4 | 945 | #else |
55b46574 RO |
946 | /* The linker used has limited plugin support, use LTO plugin with explicit |
947 | -fuse-linker-plugin. */ | |
96bdf9b4 | 948 | #define PLUGIN_COND "fuse-linker-plugin" |
56e22cab | 949 | #define PLUGIN_COND_CLOSE "" |
96bdf9b4 | 950 | #endif |
55b46574 | 951 | #define LINK_PLUGIN_SPEC \ |
16998094 | 952 | "%{" PLUGIN_COND": \ |
55b46574 RO |
953 | -plugin %(linker_plugin_file) \ |
954 | -plugin-opt=%(lto_wrapper) \ | |
955 | -plugin-opt=-fresolution=%u.res \ | |
956 | %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \ | |
16998094 | 957 | }" PLUGIN_COND_CLOSE |
55b46574 RO |
958 | #else |
959 | /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */ | |
960 | #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\ | |
961 | %e-fuse-linker-plugin is not supported in this configuration}" | |
962 | #endif | |
96bdf9b4 | 963 | |
a74db9bd JJ |
964 | /* Linker command line options for -fsanitize= early on the command line. */ |
965 | #ifndef SANITIZER_EARLY_SPEC | |
966 | #define SANITIZER_EARLY_SPEC "\ | |
de5a5fa1 | 967 | %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \ |
d30c7670 JJ |
968 | %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \ |
969 | %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}" | |
a74db9bd JJ |
970 | #endif |
971 | ||
972 | /* Linker command line options for -fsanitize= late on the command line. */ | |
973 | #ifndef SANITIZER_SPEC | |
974 | #define SANITIZER_SPEC "\ | |
de5a5fa1 | 975 | %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\ |
fec4842d | 976 | %{static:%ecannot specify -static with -fsanitize=address}}\ |
de5a5fa1 | 977 | %{%:sanitize(thread):" LIBTSAN_SPEC "\ |
4bb0ca2d | 978 | %{static:%ecannot specify -static with -fsanitize=thread}}\ |
9065ada9 JJ |
979 | %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\ |
980 | %{%:sanitize(leak):" LIBLSAN_SPEC "}}}" | |
a74db9bd | 981 | #endif |
cd533689 | 982 | |
d9386123 AP |
983 | #ifndef POST_LINK_SPEC |
984 | #define POST_LINK_SPEC "" | |
985 | #endif | |
986 | ||
2077db1b CT |
987 | /* This is the spec to use, once the code for creating the vtable |
988 | verification runtime library, libvtv.so, has been created. Currently | |
989 | the vtable verification runtime functions are in libstdc++, so we use | |
990 | the spec just below this one. */ | |
991 | #ifndef VTABLE_VERIFICATION_SPEC | |
992 | #define VTABLE_VERIFICATION_SPEC "\ | |
993 | %{!nostdlib:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\ | |
994 | %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}" | |
995 | #endif | |
996 | ||
5373cd33 IE |
997 | #ifndef CHKP_SPEC |
998 | #define CHKP_SPEC "" | |
999 | #endif | |
1000 | ||
ea414c97 ZW |
1001 | /* -u* was put back because both BSD and SysV seem to support it. */ |
1002 | /* %{static:} simply prevents an error message if the target machine | |
1003 | doesn't handle -static. */ | |
1004 | /* We want %{T*} after %{L*} and %D so that it can be used to specify linker | |
1005 | scripts which exist in user specified directories, or in standard | |
1006 | directories. */ | |
014d92e1 | 1007 | /* We pass any -flto flags on to the linker, which is expected |
d7f09764 | 1008 | to understand them. In practice, this means it had better be collect2. */ |
fa381cb2 | 1009 | /* %{e*} includes -export-dynamic; see comment in common.opt. */ |
ea414c97 ZW |
1010 | #ifndef LINK_COMMAND_SPEC |
1011 | #define LINK_COMMAND_SPEC "\ | |
1012 | %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\ | |
55b46574 RO |
1013 | %(linker) " \ |
1014 | LINK_PLUGIN_SPEC \ | |
a74db9bd | 1015 | "%{flto|flto=*:%<fcompare-debug*} \ |
d8857ac6 | 1016 | %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \ |
29d7cbd1 RO |
1017 | "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \ |
1018 | "%X %{o*} %{e*} %{N} %{n} %{r}\ | |
e5ef217c RO |
1019 | %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} \ |
1020 | %{static:} %{L*} %(mfwrap) %(link_libgcc) " \ | |
1021 | VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o " CHKP_SPEC " \ | |
cf7416c3 TV |
1022 | %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*} 1):\ |
1023 | %:include(libgomp.spec)%(link_gomp)}\ | |
b9487dd8 | 1024 | %{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}\ |
255a9a1b | 1025 | %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\ |
7458026b | 1026 | %(mflib) " STACK_SPLIT_SPEC "\ |
a74db9bd | 1027 | %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \ |
9714c911 | 1028 | %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\ |
d9386123 | 1029 | %{!nostdlib:%{!nostartfiles:%E}} %{T*} \n%(post_link) }}}}}}" |
ea414c97 ZW |
1030 | #endif |
1031 | ||
1032 | #ifndef LINK_LIBGCC_SPEC | |
57642751 DJ |
1033 | /* Generate -L options for startfile prefix list. */ |
1034 | # define LINK_LIBGCC_SPEC "%D" | |
ea414c97 ZW |
1035 | #endif |
1036 | ||
343f59d9 AM |
1037 | #ifndef STARTFILE_PREFIX_SPEC |
1038 | # define STARTFILE_PREFIX_SPEC "" | |
1039 | #endif | |
1040 | ||
380e5ca4 MM |
1041 | #ifndef SYSROOT_SPEC |
1042 | # define SYSROOT_SPEC "--sysroot=%R" | |
1043 | #endif | |
1044 | ||
e7f13528 GP |
1045 | #ifndef SYSROOT_SUFFIX_SPEC |
1046 | # define SYSROOT_SUFFIX_SPEC "" | |
1047 | #endif | |
1048 | ||
1049 | #ifndef SYSROOT_HEADERS_SUFFIX_SPEC | |
1050 | # define SYSROOT_HEADERS_SUFFIX_SPEC "" | |
1051 | #endif | |
1052 | ||
b24513a1 | 1053 | static const char *asm_debug = ASM_DEBUG_SPEC; |
3b304f5b | 1054 | static const char *cpp_spec = CPP_SPEC; |
3b304f5b ZW |
1055 | static const char *cc1_spec = CC1_SPEC; |
1056 | static const char *cc1plus_spec = CC1PLUS_SPEC; | |
bbd7687d | 1057 | static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC; |
77008252 | 1058 | static const char *link_ssp_spec = LINK_SSP_SPEC; |
3b304f5b ZW |
1059 | static const char *asm_spec = ASM_SPEC; |
1060 | static const char *asm_final_spec = ASM_FINAL_SPEC; | |
1061 | static const char *link_spec = LINK_SPEC; | |
1062 | static const char *lib_spec = LIB_SPEC; | |
953ff289 | 1063 | static const char *link_gomp_spec = ""; |
3b304f5b ZW |
1064 | static const char *libgcc_spec = LIBGCC_SPEC; |
1065 | static const char *endfile_spec = ENDFILE_SPEC; | |
1066 | static const char *startfile_spec = STARTFILE_SPEC; | |
3b304f5b | 1067 | static const char *linker_name_spec = LINKER_NAME; |
d7f09764 DN |
1068 | static const char *linker_plugin_file_spec = ""; |
1069 | static const char *lto_wrapper_spec = ""; | |
1070 | static const char *lto_gcc_spec = ""; | |
d9386123 | 1071 | static const char *post_link_spec = POST_LINK_SPEC; |
ea414c97 ZW |
1072 | static const char *link_command_spec = LINK_COMMAND_SPEC; |
1073 | static const char *link_libgcc_spec = LINK_LIBGCC_SPEC; | |
343f59d9 | 1074 | static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC; |
380e5ca4 | 1075 | static const char *sysroot_spec = SYSROOT_SPEC; |
e7f13528 GP |
1076 | static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC; |
1077 | static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC; | |
84f405a1 | 1078 | static const char *self_spec = ""; |
ea414c97 ZW |
1079 | |
1080 | /* Standard options to cpp, cc1, and as, to reduce duplication in specs. | |
1081 | There should be no need to override these in target dependent files, | |
1082 | but we need to copy them to the specs file so that newer versions | |
1083 | of the GCC driver can correctly drive older tool chains with the | |
1084 | appropriate -B options. */ | |
1085 | ||
e5f5feea NB |
1086 | /* When cpplib handles traditional preprocessing, get rid of this, and |
1087 | call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so | |
1088 | that we default the front end language better. */ | |
ea414c97 | 1089 | static const char *trad_capable_cpp = |
3028a95c | 1090 | "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}"; |
ea414c97 | 1091 | |
4ca1256f NB |
1092 | /* We don't wrap .d files in %W{} since a missing .d file, and |
1093 | therefore no dependency entry, confuses make into thinking a .o | |
1094 | file that happens to exist is up-to-date. */ | |
ffdeea47 | 1095 | static const char *cpp_unique_options = |
9cc54940 | 1096 | "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\ |
c878765b JM |
1097 | %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\ |
1098 | %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\ | |
4ca1256f | 1099 | %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\ |
3dfe046f | 1100 | %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\ |
3a610de8 | 1101 | %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\ |
c1ce46a5 | 1102 | %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\ |
3a610de8 | 1103 | %{H} %C %{D*&U*&A*} %{i*} %Z %i\ |
56cd5b95 | 1104 | %{E|M|MM:%W{o*}}"; |
ffdeea47 JJ |
1105 | |
1106 | /* This contains cpp options which are common with cc1_options and are passed | |
059ba716 CD |
1107 | only when preprocessing only to avoid duplication. We pass the cc1 spec |
1108 | options to the preprocessor so that it the cc1 spec may manipulate | |
1109 | options used to set target flags. Those special target flags settings may | |
1110 | in turn cause preprocessor symbols to be defined specially. */ | |
ffdeea47 | 1111 | static const char *cpp_options = |
740ca4b2 | 1112 | "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\ |
09828811 | 1113 | %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\ |
14fdc613 | 1114 | %{undef} %{save-temps*:-fpch-preprocess}"; |
ea414c97 | 1115 | |
8b968bd1 MW |
1116 | /* This contains cpp options which are not passed when the preprocessor |
1117 | output will be used by another program. */ | |
1118 | static const char *cpp_debug_options = "%{d*}"; | |
1119 | ||
708bceb7 | 1120 | /* NB: This is shared amongst all front-ends, except for Ada. */ |
ea414c97 ZW |
1121 | static const char *cc1_options = |
1122 | "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ | |
c1ce46a5 | 1123 | %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\ |
1890bccc | 1124 | %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\ |
2153915d AO |
1125 | %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \ |
1126 | %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \ | |
740ca4b2 | 1127 | %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\ |
3df89291 | 1128 | %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\ |
dd9f93dc | 1129 | %{Qn:-fno-ident} %{Qy:} %{-help:--help}\ |
e200444e JM |
1130 | %{-target-help:--target-help}\ |
1131 | %{-version:--version}\ | |
1132 | %{-help=*:--help=%*}\ | |
49009afd | 1133 | %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\ |
6de9cd9a | 1134 | %{fsyntax-only:-o %j} %{-param*}\ |
ee4c708e | 1135 | %{coverage:-fprofile-arcs -ftest-coverage}"; |
ea414c97 ZW |
1136 | |
1137 | static const char *asm_options = | |
a016dc83 | 1138 | "%{-target-help:%:print-asm-header()} " |
dc60b775 CD |
1139 | #if HAVE_GNU_AS |
1140 | /* If GNU AS is used, then convert -w (no warnings), -I, and -v | |
1141 | to the assembler equivalents. */ | |
1142 | "%{v} %{w:-W} %{I*} " | |
1143 | #endif | |
29d7cbd1 | 1144 | ASM_COMPRESS_DEBUG_SPEC |
dc60b775 | 1145 | "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}"; |
ffd86336 | 1146 | |
5a8e2650 | 1147 | static const char *invoke_as = |
4977bab6 | 1148 | #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT |
f300e7b8 | 1149 | "%{!fwpa*:\ |
d7f09764 DN |
1150 | %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\ |
1151 | %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\ | |
1152 | }"; | |
4977bab6 | 1153 | #else |
f300e7b8 | 1154 | "%{!fwpa*:\ |
d7f09764 DN |
1155 | %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\ |
1156 | %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\ | |
1157 | }"; | |
4977bab6 | 1158 | #endif |
5a8e2650 | 1159 | |
ffd86336 | 1160 | /* Some compilers have limits on line lengths, and the multilib_select |
961b7009 MM |
1161 | and/or multilib_matches strings can be very long, so we build them at |
1162 | run time. */ | |
ffd86336 | 1163 | static struct obstack multilib_obstack; |
3b304f5b ZW |
1164 | static const char *multilib_select; |
1165 | static const char *multilib_matches; | |
1166 | static const char *multilib_defaults; | |
1167 | static const char *multilib_exclusions; | |
e7f49d92 | 1168 | static const char *multilib_reuse; |
961b7009 MM |
1169 | |
1170 | /* Check whether a particular argument is a default argument. */ | |
1171 | ||
1172 | #ifndef MULTILIB_DEFAULTS | |
1173 | #define MULTILIB_DEFAULTS { "" } | |
1174 | #endif | |
1175 | ||
d25a45d4 | 1176 | static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS; |
ed1f651b | 1177 | |
db36994b RS |
1178 | #ifndef DRIVER_SELF_SPECS |
1179 | #define DRIVER_SELF_SPECS "" | |
1180 | #endif | |
1181 | ||
de14871c | 1182 | /* Linking to libgomp implies pthreads. This is particularly important |
953ff289 DN |
1183 | for targets that use different start files and suchlike. */ |
1184 | #ifndef GOMP_SELF_SPECS | |
cf7416c3 TV |
1185 | #define GOMP_SELF_SPECS \ |
1186 | "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*} 1): " \ | |
41dbbb37 | 1187 | "-pthread}" |
953ff289 DN |
1188 | #endif |
1189 | ||
255a9a1b EB |
1190 | /* Likewise for -fgnu-tm. */ |
1191 | #ifndef GTM_SELF_SPECS | |
1192 | #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}" | |
1193 | #endif | |
1194 | ||
b9487dd8 TB |
1195 | /* Likewise for -fcilkplus. */ |
1196 | #ifndef CILK_SELF_SPECS | |
1197 | #define CILK_SELF_SPECS "%{fcilkplus: -pthread}" | |
1198 | #endif | |
1199 | ||
953ff289 | 1200 | static const char *const driver_self_specs[] = { |
b5b8b0ac | 1201 | "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns", |
b9487dd8 TB |
1202 | DRIVER_SELF_SPECS, CONFIGURE_SPECS, GOMP_SELF_SPECS, GTM_SELF_SPECS, |
1203 | CILK_SELF_SPECS | |
953ff289 | 1204 | }; |
db36994b | 1205 | |
7816bea0 DJ |
1206 | #ifndef OPTION_DEFAULT_SPECS |
1207 | #define OPTION_DEFAULT_SPECS { "", "" } | |
1208 | #endif | |
1209 | ||
1210 | struct default_spec | |
1211 | { | |
1212 | const char *name; | |
1213 | const char *spec; | |
1214 | }; | |
1215 | ||
1216 | static const struct default_spec | |
1217 | option_default_specs[] = { OPTION_DEFAULT_SPECS }; | |
1218 | ||
3ac63d94 NC |
1219 | struct user_specs |
1220 | { | |
d9ac3a07 | 1221 | struct user_specs *next; |
878f32c3 | 1222 | const char *filename; |
d9ac3a07 MM |
1223 | }; |
1224 | ||
1225 | static struct user_specs *user_specs_head, *user_specs_tail; | |
1226 | ||
ed1f651b RS |
1227 | \f |
1228 | /* Record the mapping from file suffixes for compilation specs. */ | |
1229 | ||
1230 | struct compiler | |
1231 | { | |
878f32c3 | 1232 | const char *suffix; /* Use this compiler for input files |
ed1f651b | 1233 | whose names end in this suffix. */ |
ec32609a | 1234 | |
ea414c97 | 1235 | const char *spec; /* To use this compiler, run this spec. */ |
a9374841 MM |
1236 | |
1237 | const char *cpp_spec; /* If non-NULL, substitute this spec | |
1238 | for `%C', rather than the usual | |
1239 | cpp_spec. */ | |
1ea7e6ad | 1240 | const int combinable; /* If nonzero, compiler can deal with |
0855eab7 | 1241 | multiple source files at once (IMA). */ |
1ea7e6ad | 1242 | const int needs_preprocessing; /* If nonzero, source files need to |
0855eab7 | 1243 | be run through a preprocessor. */ |
ed1f651b RS |
1244 | }; |
1245 | ||
1246 | /* Pointer to a vector of `struct compiler' that gives the spec for | |
1247 | compiling a file, based on its suffix. | |
1248 | A file that does not end in any of these suffixes will be passed | |
1249 | unchanged to the loader and nothing else will be done to it. | |
1250 | ||
1251 | An entry containing two 0s is used to terminate the vector. | |
1252 | ||
1253 | If multiple entries match a file, the last matching one is used. */ | |
1254 | ||
1255 | static struct compiler *compilers; | |
1256 | ||
1257 | /* Number of entries in `compilers', not counting the null terminator. */ | |
1258 | ||
1259 | static int n_compilers; | |
1260 | ||
1261 | /* The default list of file name suffixes and their compilation specs. */ | |
1262 | ||
5e65297b | 1263 | static const struct compiler default_compilers[] = |
ed1f651b | 1264 | { |
4689ad58 | 1265 | /* Add lists of suffixes of known languages here. If those languages |
e9a25f70 JL |
1266 | were not present when we built the driver, we will hit these copies |
1267 | and be given a more meaningful error than "file not used since | |
4689ad58 | 1268 | linking is not done". */ |
0855eab7 | 1269 | {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0}, |
ad8c162b ZL |
1270 | {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0}, |
1271 | {".mii", "#Objective-C++", 0, 0, 0}, | |
7904f95f EC |
1272 | {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0}, |
1273 | {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0}, | |
0855eab7 CT |
1274 | {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0}, |
1275 | {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0}, | |
1276 | {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0}, | |
3135ce84 FXC |
1277 | {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0}, |
1278 | {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0}, | |
1279 | {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0}, | |
1280 | {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0}, | |
1281 | {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0}, | |
1282 | {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0}, | |
1283 | {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0}, | |
1284 | {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0}, | |
0855eab7 CT |
1285 | {".r", "#Ratfor", 0, 0, 0}, |
1286 | {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0}, | |
1287 | {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0}, | |
1288 | {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0}, | |
7a938933 | 1289 | {".go", "#Go", 0, 1, 0}, |
4689ad58 | 1290 | /* Next come the entries for C. */ |
c3224d6f | 1291 | {".c", "@c", 0, 0, 1}, |
ed1f651b | 1292 | {"@c", |
5a8e2650 | 1293 | /* cc1 has an integrated ISO C preprocessor. We should invoke the |
f458d1d5 | 1294 | external preprocessor if -save-temps is given. */ |
f749a36b | 1295 | "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\ |
5a8e2650 | 1296 | %{!E:%{!M:%{!MM:\ |
3028a95c | 1297 | %{traditional:\ |
f458d1d5 | 1298 | %eGNU C no longer supports -traditional without -E}\ |
c3224d6f RG |
1299 | %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \ |
1300 | %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\ | |
1301 | cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \ | |
1302 | %(cc1_options)}\ | |
1303 | %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\ | |
1304 | cc1 %(cpp_unique_options) %(cc1_options)}}}\ | |
1305 | %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1}, | |
ed1f651b | 1306 | {"-", |
6ba40dd7 | 1307 | "%{!E:%e-E or -x required when input is from standard input}\ |
0855eab7 CT |
1308 | %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0}, |
1309 | {".h", "@c-header", 0, 0, 0}, | |
ed1f651b | 1310 | {"@c-header", |
17211ab5 GK |
1311 | /* cc1 has an integrated ISO C preprocessor. We should invoke the |
1312 | external preprocessor if -save-temps is given. */ | |
1313 | "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\ | |
1314 | %{!E:%{!M:%{!MM:\ | |
14fdc613 MM |
1315 | %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \ |
1316 | %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\ | |
1317 | cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \ | |
0de12fcc | 1318 | %(cc1_options)\ |
6935a923 PMR |
1319 | %{!fsyntax-only:-o %g.s \ |
1320 | %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\ | |
1321 | %W{o*:--output-pch=%*}}%V}}\ | |
14fdc613 | 1322 | %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\ |
17211ab5 | 1323 | cc1 %(cpp_unique_options) %(cc1_options)\ |
6935a923 PMR |
1324 | %{!fsyntax-only:-o %g.s \ |
1325 | %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\ | |
1326 | %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0}, | |
c3224d6f | 1327 | {".i", "@cpp-output", 0, 0, 0}, |
ed1f651b | 1328 | {"@cpp-output", |
ca3da783 | 1329 | "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, |
a0d43bac | 1330 | {".s", "@assembler", 0, 0, 0}, |
ed1f651b | 1331 | {"@assembler", |
a0d43bac JZ |
1332 | "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0}, |
1333 | {".sx", "@assembler-with-cpp", 0, 0, 0}, | |
1334 | {".S", "@assembler-with-cpp", 0, 0, 0}, | |
ed1f651b | 1335 | {"@assembler-with-cpp", |
4977bab6 | 1336 | #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT |
2710d6d7 | 1337 | "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\ |
8b968bd1 | 1338 | %{E|M|MM:%(cpp_debug_options)}\ |
4977bab6 ZW |
1339 | %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\ |
1340 | as %(asm_debug) %(asm_options) %|.s %A }}}}" | |
1341 | #else | |
2710d6d7 | 1342 | "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\ |
4977bab6 ZW |
1343 | %{E|M|MM:%(cpp_debug_options)}\ |
1344 | %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\ | |
1345 | as %(asm_debug) %(asm_options) %m.s %A }}}}" | |
1346 | #endif | |
a0d43bac | 1347 | , 0, 0, 0}, |
1d088dee | 1348 | |
1346ae41 | 1349 | #include "specs.h" |
f9da5064 | 1350 | /* Mark end of table. */ |
0855eab7 | 1351 | {0, 0, 0, 0, 0} |
ed1f651b RS |
1352 | }; |
1353 | ||
1354 | /* Number of elements in default_compilers, not counting the terminator. */ | |
1355 | ||
ca7558fc | 1356 | static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1; |
ed1f651b | 1357 | |
69d540bd | 1358 | typedef char *char_p; /* For DEF_VEC_P. */ |
69d540bd | 1359 | |
ed1f651b | 1360 | /* A vector of options to give to the linker. |
368dfd3a | 1361 | These options are accumulated by %x, |
ed1f651b | 1362 | and substituted into the linker command with %X. */ |
9771b263 | 1363 | static vec<char_p> linker_options; |
c9ebacb8 RS |
1364 | |
1365 | /* A vector of options to give to the assembler. | |
1366 | These options are accumulated by -Wa, | |
57cb9b60 | 1367 | and substituted into the assembler command with %Y. */ |
9771b263 | 1368 | static vec<char_p> assembler_options; |
57cb9b60 JW |
1369 | |
1370 | /* A vector of options to give to the preprocessor. | |
1371 | These options are accumulated by -Wp, | |
1372 | and substituted into the preprocessor command with %Z. */ | |
9771b263 | 1373 | static vec<char_p> preprocessor_options; |
ed1f651b | 1374 | \f |
ed1f651b | 1375 | static char * |
1d088dee | 1376 | skip_whitespace (char *p) |
ed1f651b RS |
1377 | { |
1378 | while (1) | |
1379 | { | |
1380 | /* A fully-blank line is a delimiter in the SPEC file and shouldn't | |
1381 | be considered whitespace. */ | |
1382 | if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n') | |
1383 | return p + 1; | |
1384 | else if (*p == '\n' || *p == ' ' || *p == '\t') | |
1385 | p++; | |
1386 | else if (*p == '#') | |
1387 | { | |
d25a45d4 KH |
1388 | while (*p != '\n') |
1389 | p++; | |
ed1f651b RS |
1390 | p++; |
1391 | } | |
1392 | else | |
1393 | break; | |
1394 | } | |
1395 | ||
1396 | return p; | |
1397 | } | |
2296d164 RK |
1398 | /* Structures to keep track of prefixes to try when looking for files. */ |
1399 | ||
1400 | struct prefix_list | |
1401 | { | |
8060c8ee | 1402 | const char *prefix; /* String to prepend to the path. */ |
2296d164 RK |
1403 | struct prefix_list *next; /* Next in linked list. */ |
1404 | int require_machine_suffix; /* Don't use without machine_suffix. */ | |
1405 | /* 2 means try both machine_suffix and just_machine_suffix. */ | |
5bbcd587 JJ |
1406 | int priority; /* Sort key - priority within list. */ |
1407 | int os_multilib; /* 1 if OS multilib scheme should be used, | |
1408 | 0 for GCC multilib scheme. */ | |
2296d164 RK |
1409 | }; |
1410 | ||
1411 | struct path_prefix | |
1412 | { | |
1413 | struct prefix_list *plist; /* List of prefixes to try */ | |
1414 | int max_len; /* Max length of a prefix in PLIST */ | |
1415 | const char *name; /* Name of this list (used in config stuff) */ | |
1416 | }; | |
1417 | ||
1418 | /* List of prefixes to try when looking for executables. */ | |
1419 | ||
1420 | static struct path_prefix exec_prefixes = { 0, 0, "exec" }; | |
1421 | ||
1422 | /* List of prefixes to try when looking for startup (crt0) files. */ | |
1423 | ||
1424 | static struct path_prefix startfile_prefixes = { 0, 0, "startfile" }; | |
1425 | ||
1426 | /* List of prefixes to try when looking for include files. */ | |
1427 | ||
1428 | static struct path_prefix include_prefixes = { 0, 0, "include" }; | |
1429 | ||
1430 | /* Suffix to attach to directories searched for commands. | |
1431 | This looks like `MACHINE/VERSION/'. */ | |
1432 | ||
1433 | static const char *machine_suffix = 0; | |
1434 | ||
1435 | /* Suffix to attach to directories searched for commands. | |
1436 | This is just `MACHINE/'. */ | |
1437 | ||
1438 | static const char *just_machine_suffix = 0; | |
1439 | ||
1440 | /* Adjusted value of GCC_EXEC_PREFIX envvar. */ | |
1441 | ||
1442 | static const char *gcc_exec_prefix; | |
1443 | ||
a8ee6e2d GK |
1444 | /* Adjusted value of standard_libexec_prefix. */ |
1445 | ||
1446 | static const char *gcc_libexec_prefix; | |
1447 | ||
2296d164 RK |
1448 | /* Default prefixes to attach to command names. */ |
1449 | ||
656c7a3a AL |
1450 | #ifndef STANDARD_STARTFILE_PREFIX_1 |
1451 | #define STANDARD_STARTFILE_PREFIX_1 "/lib/" | |
1452 | #endif | |
1453 | #ifndef STANDARD_STARTFILE_PREFIX_2 | |
1454 | #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/" | |
1455 | #endif | |
7904f95f | 1456 | |
2989d30c | 1457 | #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */ |
2296d164 RK |
1458 | #undef MD_EXEC_PREFIX |
1459 | #undef MD_STARTFILE_PREFIX | |
1460 | #undef MD_STARTFILE_PREFIX_1 | |
1461 | #endif | |
1462 | ||
1463 | /* If no prefixes defined, use the null string, which will disable them. */ | |
1464 | #ifndef MD_EXEC_PREFIX | |
1465 | #define MD_EXEC_PREFIX "" | |
1466 | #endif | |
1467 | #ifndef MD_STARTFILE_PREFIX | |
1468 | #define MD_STARTFILE_PREFIX "" | |
1469 | #endif | |
1470 | #ifndef MD_STARTFILE_PREFIX_1 | |
1471 | #define MD_STARTFILE_PREFIX_1 "" | |
1472 | #endif | |
1473 | ||
f4c0a303 CD |
1474 | /* These directories are locations set at configure-time based on the |
1475 | --prefix option provided to configure. Their initializers are | |
1476 | defined in Makefile.in. These paths are not *directly* used when | |
1477 | gcc_exec_prefix is set because, in that case, we know where the | |
1478 | compiler has been installed, and use paths relative to that | |
1479 | location instead. */ | |
27c38fbe | 1480 | static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX; |
f4c0a303 CD |
1481 | static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX; |
1482 | static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX; | |
1483 | static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; | |
1484 | ||
1485 | /* For native compilers, these are well-known paths containing | |
1486 | components that may be provided by the system. For cross | |
1487 | compilers, these paths are not used. */ | |
2296d164 | 1488 | static const char *md_exec_prefix = MD_EXEC_PREFIX; |
2296d164 RK |
1489 | static const char *md_startfile_prefix = MD_STARTFILE_PREFIX; |
1490 | static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1; | |
c662432e | 1491 | static const char *const standard_startfile_prefix_1 |
656c7a3a AL |
1492 | = STANDARD_STARTFILE_PREFIX_1; |
1493 | static const char *const standard_startfile_prefix_2 | |
1494 | = STANDARD_STARTFILE_PREFIX_2; | |
2296d164 | 1495 | |
f4c0a303 CD |
1496 | /* A relative path to be used in finding the location of tools |
1497 | relative to the driver. */ | |
27c38fbe | 1498 | static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX; |
a8ee6e2d | 1499 | |
fc8b3540 IV |
1500 | /* A prefix to be used when this is an accelerator compiler. */ |
1501 | static const char *const accel_dir_suffix = ACCEL_DIR_SUFFIX; | |
1502 | ||
2296d164 RK |
1503 | /* Subdirectory to use for locating libraries. Set by |
1504 | set_multilib_dir based on the compilation options. */ | |
1505 | ||
1506 | static const char *multilib_dir; | |
5bbcd587 JJ |
1507 | |
1508 | /* Subdirectory to use for locating libraries in OS conventions. Set by | |
1509 | set_multilib_dir based on the compilation options. */ | |
1510 | ||
1511 | static const char *multilib_os_dir; | |
e0cdc09f MK |
1512 | |
1513 | /* Subdirectory to use for locating libraries in multiarch conventions. Set by | |
1514 | set_multilib_dir based on the compilation options. */ | |
1515 | ||
1516 | static const char *multiarch_dir; | |
ed1f651b | 1517 | \f |
0f41302f | 1518 | /* Structure to keep track of the specs that have been defined so far. |
3ce9f090 JM |
1519 | These are accessed using %(specname) in a compiler or link |
1520 | spec. */ | |
ed1f651b RS |
1521 | |
1522 | struct spec_list | |
1523 | { | |
79aff5ac MM |
1524 | /* The following 2 fields must be first */ |
1525 | /* to allow EXTRA_SPECS to be initialized */ | |
3b304f5b ZW |
1526 | const char *name; /* name of the spec. */ |
1527 | const char *ptr; /* available ptr if no static pointer */ | |
79aff5ac MM |
1528 | |
1529 | /* The following fields are not initialized */ | |
1530 | /* by EXTRA_SPECS */ | |
3b304f5b | 1531 | const char **ptr_spec; /* pointer to the spec itself. */ |
79aff5ac MM |
1532 | struct spec_list *next; /* Next spec in linked list. */ |
1533 | int name_len; /* length of the name */ | |
d168aaee CB |
1534 | bool user_p; /* whether string come from file spec. */ |
1535 | bool alloc_p; /* whether string was allocated */ | |
9376dd63 | 1536 | const char *default_ptr; /* The default value of *ptr_spec. */ |
ed1f651b RS |
1537 | }; |
1538 | ||
79aff5ac | 1539 | #define INIT_STATIC_SPEC(NAME,PTR) \ |
9376dd63 DM |
1540 | { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false, \ |
1541 | *PTR } | |
79aff5ac | 1542 | |
3ac63d94 NC |
1543 | /* List of statically defined specs. */ |
1544 | static struct spec_list static_specs[] = | |
1545 | { | |
79aff5ac | 1546 | INIT_STATIC_SPEC ("asm", &asm_spec), |
5f0e9ea2 | 1547 | INIT_STATIC_SPEC ("asm_debug", &asm_debug), |
79aff5ac | 1548 | INIT_STATIC_SPEC ("asm_final", &asm_final_spec), |
ea414c97 | 1549 | INIT_STATIC_SPEC ("asm_options", &asm_options), |
5a8e2650 | 1550 | INIT_STATIC_SPEC ("invoke_as", &invoke_as), |
79aff5ac | 1551 | INIT_STATIC_SPEC ("cpp", &cpp_spec), |
ea414c97 | 1552 | INIT_STATIC_SPEC ("cpp_options", &cpp_options), |
8b968bd1 | 1553 | INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options), |
ffdeea47 | 1554 | INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options), |
ea414c97 | 1555 | INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp), |
79aff5ac | 1556 | INIT_STATIC_SPEC ("cc1", &cc1_spec), |
ea414c97 | 1557 | INIT_STATIC_SPEC ("cc1_options", &cc1_options), |
79aff5ac | 1558 | INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec), |
bbd7687d | 1559 | INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec), |
77008252 | 1560 | INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec), |
79aff5ac MM |
1561 | INIT_STATIC_SPEC ("endfile", &endfile_spec), |
1562 | INIT_STATIC_SPEC ("link", &link_spec), | |
1563 | INIT_STATIC_SPEC ("lib", &lib_spec), | |
953ff289 | 1564 | INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec), |
79aff5ac MM |
1565 | INIT_STATIC_SPEC ("libgcc", &libgcc_spec), |
1566 | INIT_STATIC_SPEC ("startfile", &startfile_spec), | |
79aff5ac MM |
1567 | INIT_STATIC_SPEC ("cross_compile", &cross_compile), |
1568 | INIT_STATIC_SPEC ("version", &compiler_version), | |
1569 | INIT_STATIC_SPEC ("multilib", &multilib_select), | |
1570 | INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults), | |
1571 | INIT_STATIC_SPEC ("multilib_extra", &multilib_extra), | |
1572 | INIT_STATIC_SPEC ("multilib_matches", &multilib_matches), | |
0a8d6618 | 1573 | INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions), |
5bbcd587 | 1574 | INIT_STATIC_SPEC ("multilib_options", &multilib_options), |
e7f49d92 | 1575 | INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse), |
10da1131 | 1576 | INIT_STATIC_SPEC ("linker", &linker_name_spec), |
d7f09764 DN |
1577 | INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec), |
1578 | INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec), | |
1579 | INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec), | |
d9386123 | 1580 | INIT_STATIC_SPEC ("post_link", &post_link_spec), |
ea414c97 | 1581 | INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec), |
2296d164 RK |
1582 | INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix), |
1583 | INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix), | |
1584 | INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1), | |
343f59d9 | 1585 | INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec), |
380e5ca4 | 1586 | INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec), |
e7f13528 GP |
1587 | INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec), |
1588 | INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec), | |
84f405a1 | 1589 | INIT_STATIC_SPEC ("self_spec", &self_spec), |
79aff5ac MM |
1590 | }; |
1591 | ||
1592 | #ifdef EXTRA_SPECS /* additional specs needed */ | |
829245be | 1593 | /* Structure to keep track of just the first two args of a spec_list. |
3ac63d94 | 1594 | That is all that the EXTRA_SPECS macro gives us. */ |
829245be KG |
1595 | struct spec_list_1 |
1596 | { | |
8b60264b KG |
1597 | const char *const name; |
1598 | const char *const ptr; | |
829245be KG |
1599 | }; |
1600 | ||
8b60264b | 1601 | static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS }; |
d25a45d4 | 1602 | static struct spec_list *extra_specs = (struct spec_list *) 0; |
79aff5ac MM |
1603 | #endif |
1604 | ||
1605 | /* List of dynamically allocates specs that have been defined so far. */ | |
1606 | ||
9218435e | 1607 | static struct spec_list *specs = (struct spec_list *) 0; |
79aff5ac | 1608 | \f |
f3226a90 JT |
1609 | /* List of static spec functions. */ |
1610 | ||
1611 | static const struct spec_function static_spec_functions[] = | |
1612 | { | |
30d8946b | 1613 | { "getenv", getenv_spec_function }, |
f3226a90 | 1614 | { "if-exists", if_exists_spec_function }, |
152a5a9c | 1615 | { "if-exists-else", if_exists_else_spec_function }, |
de5a5fa1 | 1616 | { "sanitize", sanitize_spec_function }, |
3dd53121 | 1617 | { "replace-outfile", replace_outfile_spec_function }, |
2642f659 | 1618 | { "remove-outfile", remove_outfile_spec_function }, |
ed5b9f96 | 1619 | { "version-compare", version_compare_spec_function }, |
953ff289 | 1620 | { "include", include_spec_function }, |
4adbd5dd | 1621 | { "find-file", find_file_spec_function }, |
c1ce46a5 | 1622 | { "find-plugindir", find_plugindir_spec_function }, |
a0f87454 | 1623 | { "print-asm-header", print_asm_header_spec_function }, |
2153915d AO |
1624 | { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function }, |
1625 | { "compare-debug-self-opt", compare_debug_self_opt_spec_function }, | |
1626 | { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function }, | |
9a37bc07 | 1627 | { "pass-through-libs", pass_through_libs_spec_func }, |
99ea153e | 1628 | { "replace-extension", replace_extension_spec_func }, |
cf7416c3 | 1629 | { "gt", greater_than_spec_func }, |
fa959ce4 MM |
1630 | #ifdef EXTRA_SPEC_FUNCTIONS |
1631 | EXTRA_SPEC_FUNCTIONS | |
1632 | #endif | |
f3226a90 JT |
1633 | { 0, 0 } |
1634 | }; | |
1635 | ||
1636 | static int processing_spec_function; | |
1637 | \f | |
049f6ec9 MM |
1638 | /* Add appropriate libgcc specs to OBSTACK, taking into account |
1639 | various permutations of -shared-libgcc, -shared, and such. */ | |
1640 | ||
328163dc | 1641 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) |
8efcd34f AM |
1642 | |
1643 | #ifndef USE_LD_AS_NEEDED | |
1644 | #define USE_LD_AS_NEEDED 0 | |
1645 | #endif | |
1646 | ||
049f6ec9 | 1647 | static void |
1d088dee AJ |
1648 | init_gcc_specs (struct obstack *obstack, const char *shared_name, |
1649 | const char *static_name, const char *eh_name) | |
049f6ec9 | 1650 | { |
5c181756 AO |
1651 | char *buf; |
1652 | ||
5e4f1974 AM |
1653 | buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}" |
1654 | "%{!static:%{!static-libgcc:" | |
8efcd34f | 1655 | #if USE_LD_AS_NEEDED |
5e4f1974 | 1656 | "%{!shared-libgcc:", |
e927b6ad RO |
1657 | static_name, " " LD_AS_NEEDED_OPTION " ", |
1658 | shared_name, " " LD_NO_AS_NEEDED_OPTION | |
5e4f1974 AM |
1659 | "}" |
1660 | "%{shared-libgcc:", | |
1661 | shared_name, "%{!shared: ", static_name, "}" | |
1662 | "}" | |
765f1bf9 | 1663 | #else |
5e4f1974 AM |
1664 | "%{!shared:" |
1665 | "%{!shared-libgcc:", static_name, " ", eh_name, "}" | |
1666 | "%{shared-libgcc:", shared_name, " ", static_name, "}" | |
1667 | "}" | |
275b60d6 | 1668 | #ifdef LINK_EH_SPEC |
5e4f1974 AM |
1669 | "%{shared:" |
1670 | "%{shared-libgcc:", shared_name, "}" | |
1671 | "%{!shared-libgcc:", static_name, "}" | |
1672 | "}" | |
275b60d6 | 1673 | #else |
5e4f1974 | 1674 | "%{shared:", shared_name, "}" |
765f1bf9 | 1675 | #endif |
275b60d6 | 1676 | #endif |
5e4f1974 | 1677 | "}}", NULL); |
5c181756 AO |
1678 | |
1679 | obstack_grow (obstack, buf, strlen (buf)); | |
1680 | free (buf); | |
049f6ec9 | 1681 | } |
6894579f | 1682 | #endif /* ENABLE_SHARED_LIBGCC */ |
049f6ec9 | 1683 | |
79aff5ac MM |
1684 | /* Initialize the specs lookup routines. */ |
1685 | ||
1686 | static void | |
7e51717c | 1687 | init_spec (void) |
79aff5ac | 1688 | { |
9218435e KH |
1689 | struct spec_list *next = (struct spec_list *) 0; |
1690 | struct spec_list *sl = (struct spec_list *) 0; | |
79aff5ac MM |
1691 | int i; |
1692 | ||
1693 | if (specs) | |
3ac63d94 | 1694 | return; /* Already initialized. */ |
79aff5ac | 1695 | |
20df0482 | 1696 | if (verbose_flag) |
2dec80c7 | 1697 | fnotice (stderr, "Using built-in specs.\n"); |
20df0482 | 1698 | |
79aff5ac | 1699 | #ifdef EXTRA_SPECS |
e1e4cdc4 | 1700 | extra_specs = XCNEWVEC (struct spec_list, ARRAY_SIZE (extra_specs_1)); |
9218435e | 1701 | |
b6a1cbae | 1702 | for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--) |
03fc1620 JW |
1703 | { |
1704 | sl = &extra_specs[i]; | |
829245be KG |
1705 | sl->name = extra_specs_1[i].name; |
1706 | sl->ptr = extra_specs_1[i].ptr; | |
03fc1620 JW |
1707 | sl->next = next; |
1708 | sl->name_len = strlen (sl->name); | |
1709 | sl->ptr_spec = &sl->ptr; | |
9376dd63 DM |
1710 | gcc_assert (sl->ptr_spec != NULL); |
1711 | sl->default_ptr = sl->ptr; | |
03fc1620 JW |
1712 | next = sl; |
1713 | } | |
79aff5ac MM |
1714 | #endif |
1715 | ||
b6a1cbae | 1716 | for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--) |
79aff5ac MM |
1717 | { |
1718 | sl = &static_specs[i]; | |
1719 | sl->next = next; | |
1720 | next = sl; | |
1721 | } | |
1722 | ||
328163dc | 1723 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) |
9db0819e RH |
1724 | /* ??? If neither -shared-libgcc nor --static-libgcc was |
1725 | seen, then we should be making an educated guess. Some proposed | |
1726 | heuristics for ELF include: | |
1727 | ||
1728 | (1) If "-Wl,--export-dynamic", then it's a fair bet that the | |
1729 | program will be doing dynamic loading, which will likely | |
1730 | need the shared libgcc. | |
1731 | ||
1732 | (2) If "-ldl", then it's also a fair bet that we're doing | |
1733 | dynamic loading. | |
1734 | ||
1735 | (3) For each ET_DYN we're linking against (either through -lfoo | |
1736 | or /some/path/foo.so), check to see whether it or one of | |
ff7cc307 | 1737 | its dependencies depends on a shared libgcc. |
9db0819e RH |
1738 | |
1739 | (4) If "-shared" | |
1740 | ||
1741 | If the runtime is fixed to look for program headers instead | |
1742 | of calling __register_frame_info at all, for each object, | |
1743 | use the shared libgcc if any EH symbol referenced. | |
1744 | ||
1745 | If crtstuff is fixed to not invoke __register_frame_info | |
1746 | automatically, for each object, use the shared libgcc if | |
1747 | any non-empty unwind section found. | |
1748 | ||
1749 | Doing any of this probably requires invoking an external program to | |
1750 | do the actual object file scanning. */ | |
1751 | { | |
1752 | const char *p = libgcc_spec; | |
1753 | int in_sep = 1; | |
589005ff | 1754 | |
16757495 | 1755 | /* Transform the extant libgcc_spec into one that uses the shared libgcc |
9db0819e RH |
1756 | when given the proper command line arguments. */ |
1757 | while (*p) | |
1758 | { | |
589005ff | 1759 | if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0) |
9db0819e | 1760 | { |
049f6ec9 | 1761 | init_gcc_specs (&obstack, |
049f6ec9 | 1762 | "-lgcc_s" |
443728bb L |
1763 | #ifdef USE_LIBUNWIND_EXCEPTIONS |
1764 | " -lunwind" | |
4977bab6 | 1765 | #endif |
348d71c7 JW |
1766 | , |
1767 | "-lgcc", | |
1768 | "-lgcc_eh" | |
4977bab6 | 1769 | #ifdef USE_LIBUNWIND_EXCEPTIONS |
7e9d8517 | 1770 | # ifdef HAVE_LD_STATIC_DYNAMIC |
c6092243 RO |
1771 | " %{!static:" LD_STATIC_OPTION "} -lunwind" |
1772 | " %{!static:" LD_DYNAMIC_OPTION "}" | |
7e9d8517 | 1773 | # else |
4977bab6 | 1774 | " -lunwind" |
7e9d8517 | 1775 | # endif |
9db0819e | 1776 | #endif |
348d71c7 JW |
1777 | ); |
1778 | ||
ba2b7435 | 1779 | p += 5; |
9db0819e RH |
1780 | in_sep = 0; |
1781 | } | |
ba2b7435 | 1782 | else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0) |
9db0819e RH |
1783 | { |
1784 | /* Ug. We don't know shared library extensions. Hope that | |
1785 | systems that use this form don't do shared libraries. */ | |
049f6ec9 | 1786 | init_gcc_specs (&obstack, |
4e8d0554 | 1787 | "-lgcc_s", |
275b60d6 | 1788 | "libgcc.a%s", |
aedec8dd JW |
1789 | "libgcc_eh.a%s" |
1790 | #ifdef USE_LIBUNWIND_EXCEPTIONS | |
1791 | " -lunwind" | |
1792 | #endif | |
1793 | ); | |
ba2b7435 | 1794 | p += 10; |
9db0819e RH |
1795 | in_sep = 0; |
1796 | } | |
1797 | else | |
1798 | { | |
1799 | obstack_1grow (&obstack, *p); | |
1800 | in_sep = (*p == ' '); | |
1801 | p += 1; | |
1802 | } | |
1803 | } | |
1804 | ||
1805 | obstack_1grow (&obstack, '\0'); | |
7973fd2a | 1806 | libgcc_spec = XOBFINISH (&obstack, const char *); |
9db0819e RH |
1807 | } |
1808 | #endif | |
c64688ae RH |
1809 | #ifdef USE_AS_TRADITIONAL_FORMAT |
1810 | /* Prepend "--traditional-format" to whatever asm_spec we had before. */ | |
1811 | { | |
8b60264b | 1812 | static const char tf[] = "--traditional-format "; |
c3284718 | 1813 | obstack_grow (&obstack, tf, sizeof (tf) - 1); |
c64688ae | 1814 | obstack_grow0 (&obstack, asm_spec, strlen (asm_spec)); |
7973fd2a | 1815 | asm_spec = XOBFINISH (&obstack, const char *); |
c64688ae RH |
1816 | } |
1817 | #endif | |
cd533689 | 1818 | |
79bec923 ST |
1819 | #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \ |
1820 | defined LINKER_HASH_STYLE | |
cd533689 PP |
1821 | # ifdef LINK_BUILDID_SPEC |
1822 | /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */ | |
c3284718 | 1823 | obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof (LINK_BUILDID_SPEC) - 1); |
cd533689 PP |
1824 | # endif |
1825 | # ifdef LINK_EH_SPEC | |
275b60d6 | 1826 | /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */ |
c3284718 | 1827 | obstack_grow (&obstack, LINK_EH_SPEC, sizeof (LINK_EH_SPEC) - 1); |
79bec923 ST |
1828 | # endif |
1829 | # ifdef LINKER_HASH_STYLE | |
1830 | /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had | |
1831 | before. */ | |
1832 | { | |
1833 | static const char hash_style[] = "--hash-style="; | |
c3284718 RS |
1834 | obstack_grow (&obstack, hash_style, sizeof (hash_style) - 1); |
1835 | obstack_grow (&obstack, LINKER_HASH_STYLE, sizeof (LINKER_HASH_STYLE) - 1); | |
79bec923 ST |
1836 | obstack_1grow (&obstack, ' '); |
1837 | } | |
cd533689 | 1838 | # endif |
275b60d6 | 1839 | obstack_grow0 (&obstack, link_spec, strlen (link_spec)); |
7973fd2a | 1840 | link_spec = XOBFINISH (&obstack, const char *); |
275b60d6 | 1841 | #endif |
9db0819e | 1842 | |
79aff5ac MM |
1843 | specs = sl; |
1844 | } | |
ed1f651b RS |
1845 | \f |
1846 | /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is | |
1847 | removed; If the spec starts with a + then SPEC is added to the end of the | |
0f41302f | 1848 | current spec. */ |
ed1f651b RS |
1849 | |
1850 | static void | |
d168aaee | 1851 | set_spec (const char *name, const char *spec, bool user_p) |
ed1f651b RS |
1852 | { |
1853 | struct spec_list *sl; | |
3b304f5b | 1854 | const char *old_spec; |
79aff5ac MM |
1855 | int name_len = strlen (name); |
1856 | int i; | |
1857 | ||
3ac63d94 | 1858 | /* If this is the first call, initialize the statically allocated specs. */ |
20df0482 MM |
1859 | if (!specs) |
1860 | { | |
9218435e | 1861 | struct spec_list *next = (struct spec_list *) 0; |
b6a1cbae | 1862 | for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--) |
20df0482 MM |
1863 | { |
1864 | sl = &static_specs[i]; | |
1865 | sl->next = next; | |
1866 | next = sl; | |
1867 | } | |
1868 | specs = sl; | |
1869 | } | |
1870 | ||
3ac63d94 | 1871 | /* See if the spec already exists. */ |
ed1f651b | 1872 | for (sl = specs; sl; sl = sl->next) |
79aff5ac | 1873 | if (name_len == sl->name_len && !strcmp (sl->name, name)) |
ed1f651b RS |
1874 | break; |
1875 | ||
1876 | if (!sl) | |
1877 | { | |
3ac63d94 | 1878 | /* Not found - make it. */ |
5ed6ace5 | 1879 | sl = XNEW (struct spec_list); |
ad85216e | 1880 | sl->name = xstrdup (name); |
79aff5ac MM |
1881 | sl->name_len = name_len; |
1882 | sl->ptr_spec = &sl->ptr; | |
1883 | sl->alloc_p = 0; | |
1884 | *(sl->ptr_spec) = ""; | |
ed1f651b | 1885 | sl->next = specs; |
9376dd63 | 1886 | sl->default_ptr = NULL; |
ed1f651b RS |
1887 | specs = sl; |
1888 | } | |
1889 | ||
79aff5ac | 1890 | old_spec = *(sl->ptr_spec); |
e51712db | 1891 | *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1])) |
d4f2852f | 1892 | ? concat (old_spec, spec + 1, NULL) |
ad85216e | 1893 | : xstrdup (spec)); |
841faeed | 1894 | |
20df0482 MM |
1895 | #ifdef DEBUG_SPECS |
1896 | if (verbose_flag) | |
2dec80c7 | 1897 | fnotice (stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec)); |
20df0482 MM |
1898 | #endif |
1899 | ||
3ac63d94 | 1900 | /* Free the old spec. */ |
79aff5ac | 1901 | if (old_spec && sl->alloc_p) |
c3284718 | 1902 | free (CONST_CAST (char *, old_spec)); |
79aff5ac | 1903 | |
d168aaee CB |
1904 | sl->user_p = user_p; |
1905 | sl->alloc_p = true; | |
ed1f651b RS |
1906 | } |
1907 | \f | |
1908 | /* Accumulate a command (program name and args), and run it. */ | |
1909 | ||
5b634ee0 | 1910 | typedef const char *const_char_p; /* For DEF_VEC_P. */ |
ed1f651b | 1911 | |
5b634ee0 | 1912 | /* Vector of pointers to arguments in the current line of specifications. */ |
ed1f651b | 1913 | |
9771b263 | 1914 | static vec<const_char_p> argbuf; |
ed1f651b | 1915 | |
1b5bc8e9 | 1916 | /* Were the options -c, -S or -E passed. */ |
af41c57d AP |
1917 | static int have_c = 0; |
1918 | ||
1919 | /* Was the option -o passed. */ | |
1920 | static int have_o = 0; | |
1921 | ||
3d00119c AB |
1922 | /* Pointer to output file name passed in with -o. */ |
1923 | static const char *output_file = 0; | |
1924 | ||
49009afd JL |
1925 | /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated |
1926 | temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for | |
1927 | it here. */ | |
fb266030 TW |
1928 | |
1929 | static struct temp_name { | |
878f32c3 | 1930 | const char *suffix; /* suffix associated with the code. */ |
fb266030 TW |
1931 | int length; /* strlen (suffix). */ |
1932 | int unique; /* Indicates whether %g or %u/%U was used. */ | |
878f32c3 | 1933 | const char *filename; /* associated filename. */ |
fb266030 TW |
1934 | int filename_length; /* strlen (filename). */ |
1935 | struct temp_name *next; | |
1936 | } *temp_names; | |
39d45901 | 1937 | |
ed1f651b RS |
1938 | /* Number of commands executed so far. */ |
1939 | ||
1940 | static int execution_count; | |
1941 | ||
3b9b4d3f RS |
1942 | /* Number of commands that exited with a signal. */ |
1943 | ||
1944 | static int signal_count; | |
ed1f651b | 1945 | \f |
f3226a90 JT |
1946 | /* Allocate the argument vector. */ |
1947 | ||
1948 | static void | |
7e51717c | 1949 | alloc_args (void) |
f3226a90 | 1950 | { |
9771b263 | 1951 | argbuf.create (10); |
f3226a90 JT |
1952 | } |
1953 | ||
ed1f651b RS |
1954 | /* Clear out the vector of arguments (after a command is executed). */ |
1955 | ||
1956 | static void | |
1d088dee | 1957 | clear_args (void) |
ed1f651b | 1958 | { |
9771b263 | 1959 | argbuf.truncate (0); |
ed1f651b RS |
1960 | } |
1961 | ||
1962 | /* Add one argument to the vector at the end. | |
1963 | This is done when a space is seen or at the end of the line. | |
1964 | If DELETE_ALWAYS is nonzero, the arg is a filename | |
1965 | and the file should be deleted eventually. | |
1966 | If DELETE_FAILURE is nonzero, the arg is a filename | |
1967 | and the file should be deleted if this compilation fails. */ | |
1968 | ||
1969 | static void | |
1d088dee | 1970 | store_arg (const char *arg, int delete_always, int delete_failure) |
ed1f651b | 1971 | { |
9771b263 | 1972 | argbuf.safe_push (arg); |
ed1f651b RS |
1973 | |
1974 | if (delete_always || delete_failure) | |
d6205185 RG |
1975 | { |
1976 | const char *p; | |
1977 | /* If the temporary file we should delete is specified as | |
1978 | part of a joined argument extract the filename. */ | |
1979 | if (arg[0] == '-' | |
1980 | && (p = strrchr (arg, '='))) | |
1981 | arg = p + 1; | |
1982 | record_temp_file (arg, delete_always, delete_failure); | |
1983 | } | |
ed1f651b RS |
1984 | } |
1985 | \f | |
ff7cc307 | 1986 | /* Load specs from a file name named FILENAME, replacing occurrences of |
9218435e | 1987 | various different types of line-endings, \r\n, \n\r and just \r, with |
b633b6c0 | 1988 | a single \n. */ |
20df0482 | 1989 | |
d25a45d4 | 1990 | static char * |
1d088dee | 1991 | load_specs (const char *filename) |
20df0482 MM |
1992 | { |
1993 | int desc; | |
1994 | int readlen; | |
1995 | struct stat statbuf; | |
1996 | char *buffer; | |
b633b6c0 MK |
1997 | char *buffer_p; |
1998 | char *specs; | |
1999 | char *specs_p; | |
20df0482 MM |
2000 | |
2001 | if (verbose_flag) | |
2dec80c7 | 2002 | fnotice (stderr, "Reading specs from %s\n", filename); |
20df0482 MM |
2003 | |
2004 | /* Open and stat the file. */ | |
2005 | desc = open (filename, O_RDONLY, 0); | |
2006 | if (desc < 0) | |
2007 | pfatal_with_name (filename); | |
2008 | if (stat (filename, &statbuf) < 0) | |
2009 | pfatal_with_name (filename); | |
2010 | ||
2011 | /* Read contents of file into BUFFER. */ | |
5ed6ace5 | 2012 | buffer = XNEWVEC (char, statbuf.st_size + 1); |
20df0482 MM |
2013 | readlen = read (desc, buffer, (unsigned) statbuf.st_size); |
2014 | if (readlen < 0) | |
2015 | pfatal_with_name (filename); | |
2016 | buffer[readlen] = 0; | |
2017 | close (desc); | |
2018 | ||
5ed6ace5 | 2019 | specs = XNEWVEC (char, readlen + 1); |
b633b6c0 MK |
2020 | specs_p = specs; |
2021 | for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++) | |
2022 | { | |
2023 | int skip = 0; | |
2024 | char c = *buffer_p; | |
2025 | if (c == '\r') | |
d25a45d4 KH |
2026 | { |
2027 | if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */ | |
b633b6c0 | 2028 | skip = 1; |
d25a45d4 | 2029 | else if (*(buffer_p + 1) == '\n') /* \r\n */ |
b633b6c0 MK |
2030 | skip = 1; |
2031 | else /* \r */ | |
2032 | c = '\n'; | |
2033 | } | |
2034 | if (! skip) | |
2035 | *specs_p++ = c; | |
2036 | } | |
2037 | *specs_p = '\0'; | |
2038 | ||
2039 | free (buffer); | |
2040 | return (specs); | |
2041 | } | |
2042 | ||
2043 | /* Read compilation specs from a file named FILENAME, | |
2044 | replacing the default ones. | |
2045 | ||
2046 | A suffix which starts with `*' is a definition for | |
2047 | one of the machine-specific sub-specs. The "suffix" should be | |
0fef3fd0 | 2048 | *asm, *cc1, *cpp, *link, *startfile, etc. |
b633b6c0 MK |
2049 | The corresponding spec is stored in asm_spec, etc., |
2050 | rather than in the `compilers' vector. | |
2051 | ||
2052 | Anything invalid in the file is a fatal error. */ | |
2053 | ||
2054 | static void | |
d168aaee | 2055 | read_specs (const char *filename, bool main_p, bool user_p) |
b633b6c0 MK |
2056 | { |
2057 | char *buffer; | |
b3694847 | 2058 | char *p; |
b633b6c0 MK |
2059 | |
2060 | buffer = load_specs (filename); | |
2061 | ||
20df0482 MM |
2062 | /* Scan BUFFER for specs, putting them in the vector. */ |
2063 | p = buffer; | |
2064 | while (1) | |
2065 | { | |
2066 | char *suffix; | |
2067 | char *spec; | |
2068 | char *in, *out, *p1, *p2, *p3; | |
2069 | ||
2070 | /* Advance P in BUFFER to the next nonblank nocomment line. */ | |
2071 | p = skip_whitespace (p); | |
2072 | if (*p == 0) | |
2073 | break; | |
2074 | ||
2075 | /* Is this a special command that starts with '%'? */ | |
2076 | /* Don't allow this for the main specs file, since it would | |
2077 | encourage people to overwrite it. */ | |
2078 | if (*p == '%' && !main_p) | |
2079 | { | |
2080 | p1 = p; | |
e9a25f70 JL |
2081 | while (*p && *p != '\n') |
2082 | p++; | |
2083 | ||
d25a45d4 KH |
2084 | /* Skip '\n'. */ |
2085 | p++; | |
20df0482 | 2086 | |
d25a45d4 | 2087 | if (!strncmp (p1, "%include", sizeof ("%include") - 1) |
e9a25f70 JL |
2088 | && (p1[sizeof "%include" - 1] == ' ' |
2089 | || p1[sizeof "%include" - 1] == '\t')) | |
20df0482 MM |
2090 | { |
2091 | char *new_filename; | |
2092 | ||
2093 | p1 += sizeof ("%include"); | |
e9a25f70 JL |
2094 | while (*p1 == ' ' || *p1 == '\t') |
2095 | p1++; | |
20df0482 MM |
2096 | |
2097 | if (*p1++ != '<' || p[-2] != '>') | |
40fecdd6 JM |
2098 | fatal_error (input_location, |
2099 | "specs %%include syntax malformed after " | |
2dec80c7 JM |
2100 | "%ld characters", |
2101 | (long) (p1 - buffer + 1)); | |
20df0482 MM |
2102 | |
2103 | p[-2] = '\0'; | |
00dcee0c | 2104 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true); |
d168aaee | 2105 | read_specs (new_filename ? new_filename : p1, false, user_p); |
20df0482 MM |
2106 | continue; |
2107 | } | |
e9a25f70 JL |
2108 | else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1) |
2109 | && (p1[sizeof "%include_noerr" - 1] == ' ' | |
2110 | || p1[sizeof "%include_noerr" - 1] == '\t')) | |
20df0482 MM |
2111 | { |
2112 | char *new_filename; | |
2113 | ||
e9a25f70 | 2114 | p1 += sizeof "%include_noerr"; |
d25a45d4 KH |
2115 | while (*p1 == ' ' || *p1 == '\t') |
2116 | p1++; | |
20df0482 MM |
2117 | |
2118 | if (*p1++ != '<' || p[-2] != '>') | |
40fecdd6 JM |
2119 | fatal_error (input_location, |
2120 | "specs %%include syntax malformed after " | |
2dec80c7 JM |
2121 | "%ld characters", |
2122 | (long) (p1 - buffer + 1)); | |
20df0482 MM |
2123 | |
2124 | p[-2] = '\0'; | |
00dcee0c | 2125 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true); |
20df0482 | 2126 | if (new_filename) |
d168aaee | 2127 | read_specs (new_filename, false, user_p); |
20df0482 | 2128 | else if (verbose_flag) |
2dec80c7 | 2129 | fnotice (stderr, "could not find specs file %s\n", p1); |
20df0482 MM |
2130 | continue; |
2131 | } | |
e9a25f70 JL |
2132 | else if (!strncmp (p1, "%rename", sizeof "%rename" - 1) |
2133 | && (p1[sizeof "%rename" - 1] == ' ' | |
2134 | || p1[sizeof "%rename" - 1] == '\t')) | |
20df0482 MM |
2135 | { |
2136 | int name_len; | |
2137 | struct spec_list *sl; | |
169ce44d | 2138 | struct spec_list *newsl; |
20df0482 | 2139 | |
169ce44d | 2140 | /* Get original name. */ |
e9a25f70 JL |
2141 | p1 += sizeof "%rename"; |
2142 | while (*p1 == ' ' || *p1 == '\t') | |
2143 | p1++; | |
2144 | ||
9218435e | 2145 | if (! ISALPHA ((unsigned char) *p1)) |
40fecdd6 JM |
2146 | fatal_error (input_location, |
2147 | "specs %%rename syntax malformed after " | |
2dec80c7 JM |
2148 | "%ld characters", |
2149 | (long) (p1 - buffer)); | |
20df0482 MM |
2150 | |
2151 | p2 = p1; | |
9218435e | 2152 | while (*p2 && !ISSPACE ((unsigned char) *p2)) |
e9a25f70 JL |
2153 | p2++; |
2154 | ||
20df0482 | 2155 | if (*p2 != ' ' && *p2 != '\t') |
40fecdd6 JM |
2156 | fatal_error (input_location, |
2157 | "specs %%rename syntax malformed after " | |
2dec80c7 JM |
2158 | "%ld characters", |
2159 | (long) (p2 - buffer)); | |
20df0482 MM |
2160 | |
2161 | name_len = p2 - p1; | |
2162 | *p2++ = '\0'; | |
e9a25f70 JL |
2163 | while (*p2 == ' ' || *p2 == '\t') |
2164 | p2++; | |
2165 | ||
9218435e | 2166 | if (! ISALPHA ((unsigned char) *p2)) |
40fecdd6 JM |
2167 | fatal_error (input_location, |
2168 | "specs %%rename syntax malformed after " | |
2dec80c7 JM |
2169 | "%ld characters", |
2170 | (long) (p2 - buffer)); | |
20df0482 | 2171 | |
d25a45d4 | 2172 | /* Get new spec name. */ |
20df0482 | 2173 | p3 = p2; |
9218435e | 2174 | while (*p3 && !ISSPACE ((unsigned char) *p3)) |
e9a25f70 JL |
2175 | p3++; |
2176 | ||
d25a45d4 | 2177 | if (p3 != p - 1) |
40fecdd6 JM |
2178 | fatal_error (input_location, |
2179 | "specs %%rename syntax malformed after " | |
2dec80c7 JM |
2180 | "%ld characters", |
2181 | (long) (p3 - buffer)); | |
20df0482 MM |
2182 | *p3 = '\0'; |
2183 | ||
2184 | for (sl = specs; sl; sl = sl->next) | |
2185 | if (name_len == sl->name_len && !strcmp (sl->name, p1)) | |
2186 | break; | |
2187 | ||
2188 | if (!sl) | |
40fecdd6 JM |
2189 | fatal_error (input_location, |
2190 | "specs %s spec was not found to be renamed", p1); | |
20df0482 | 2191 | |
e9a25f70 | 2192 | if (strcmp (p1, p2) == 0) |
20df0482 MM |
2193 | continue; |
2194 | ||
169ce44d NC |
2195 | for (newsl = specs; newsl; newsl = newsl->next) |
2196 | if (strcmp (newsl->name, p2) == 0) | |
40fecdd6 JM |
2197 | fatal_error (input_location, |
2198 | "%s: attempt to rename spec %qs to " | |
bdc6b402 | 2199 | "already defined spec %qs", |
169ce44d NC |
2200 | filename, p1, p2); |
2201 | ||
20df0482 MM |
2202 | if (verbose_flag) |
2203 | { | |
2dec80c7 | 2204 | fnotice (stderr, "rename spec %s to %s\n", p1, p2); |
20df0482 | 2205 | #ifdef DEBUG_SPECS |
2dec80c7 | 2206 | fnotice (stderr, "spec is '%s'\n\n", *(sl->ptr_spec)); |
20df0482 MM |
2207 | #endif |
2208 | } | |
2209 | ||
d168aaee | 2210 | set_spec (p2, *(sl->ptr_spec), user_p); |
20df0482 | 2211 | if (sl->alloc_p) |
b1d5455a | 2212 | free (CONST_CAST (char *, *(sl->ptr_spec))); |
20df0482 MM |
2213 | |
2214 | *(sl->ptr_spec) = ""; | |
2215 | sl->alloc_p = 0; | |
2216 | continue; | |
2217 | } | |
2218 | else | |
40fecdd6 JM |
2219 | fatal_error (input_location, |
2220 | "specs unknown %% command after %ld characters", | |
2dec80c7 | 2221 | (long) (p1 - buffer)); |
20df0482 MM |
2222 | } |
2223 | ||
2224 | /* Find the colon that should end the suffix. */ | |
2225 | p1 = p; | |
e9a25f70 JL |
2226 | while (*p1 && *p1 != ':' && *p1 != '\n') |
2227 | p1++; | |
2228 | ||
20df0482 MM |
2229 | /* The colon shouldn't be missing. */ |
2230 | if (*p1 != ':') | |
40fecdd6 JM |
2231 | fatal_error (input_location, |
2232 | "specs file malformed after %ld characters", | |
2dec80c7 | 2233 | (long) (p1 - buffer)); |
e9a25f70 | 2234 | |
20df0482 MM |
2235 | /* Skip back over trailing whitespace. */ |
2236 | p2 = p1; | |
e9a25f70 JL |
2237 | while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) |
2238 | p2--; | |
2239 | ||
20df0482 MM |
2240 | /* Copy the suffix to a string. */ |
2241 | suffix = save_string (p, p2 - p); | |
2242 | /* Find the next line. */ | |
2243 | p = skip_whitespace (p1 + 1); | |
2244 | if (p[1] == 0) | |
40fecdd6 JM |
2245 | fatal_error (input_location, |
2246 | "specs file malformed after %ld characters", | |
2dec80c7 | 2247 | (long) (p - buffer)); |
e9a25f70 | 2248 | |
20df0482 | 2249 | p1 = p; |
bbeb7b65 JW |
2250 | /* Find next blank line or end of string. */ |
2251 | while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0'))) | |
e9a25f70 JL |
2252 | p1++; |
2253 | ||
20df0482 MM |
2254 | /* Specs end at the blank line and do not include the newline. */ |
2255 | spec = save_string (p, p1 - p); | |
2256 | p = p1; | |
2257 | ||
2258 | /* Delete backslash-newline sequences from the spec. */ | |
2259 | in = spec; | |
2260 | out = spec; | |
2261 | while (*in != 0) | |
2262 | { | |
2263 | if (in[0] == '\\' && in[1] == '\n') | |
2264 | in += 2; | |
2265 | else if (in[0] == '#') | |
e9a25f70 JL |
2266 | while (*in && *in != '\n') |
2267 | in++; | |
2268 | ||
20df0482 MM |
2269 | else |
2270 | *out++ = *in++; | |
2271 | } | |
2272 | *out = 0; | |
2273 | ||
2274 | if (suffix[0] == '*') | |
2275 | { | |
2276 | if (! strcmp (suffix, "*link_command")) | |
2277 | link_command_spec = spec; | |
2278 | else | |
9376dd63 DM |
2279 | { |
2280 | set_spec (suffix + 1, spec, user_p); | |
2281 | free (spec); | |
2282 | } | |
20df0482 MM |
2283 | } |
2284 | else | |
2285 | { | |
2286 | /* Add this pair to the vector. */ | |
2287 | compilers | |
e1e4cdc4 | 2288 | = XRESIZEVEC (struct compiler, compilers, n_compilers + 2); |
e9a25f70 | 2289 | |
20df0482 | 2290 | compilers[n_compilers].suffix = suffix; |
ea414c97 | 2291 | compilers[n_compilers].spec = spec; |
20df0482 | 2292 | n_compilers++; |
9257393c | 2293 | memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]); |
20df0482 MM |
2294 | } |
2295 | ||
2296 | if (*suffix == 0) | |
2297 | link_command_spec = spec; | |
2298 | } | |
2299 | ||
2300 | if (link_command_spec == 0) | |
40fecdd6 | 2301 | fatal_error (input_location, "spec file has no spec for linking"); |
9376dd63 DM |
2302 | |
2303 | XDELETEVEC (buffer); | |
20df0482 MM |
2304 | } |
2305 | \f | |
ed1f651b RS |
2306 | /* Record the names of temporary files we tell compilers to write, |
2307 | and delete them at the end of the run. */ | |
2308 | ||
aa34f42c RG |
2309 | /* This is the common prefix we use to make temp file names. |
2310 | It is chosen once for each run of this program. | |
2311 | It is substituted into a spec by %g or %j. | |
2312 | Thus, all temp file names contain this prefix. | |
2313 | In practice, all temp file names start with this prefix. | |
2314 | ||
2315 | This prefix comes from the envvar TMPDIR if it is defined; | |
2316 | otherwise, from the P_tmpdir macro if that is defined; | |
2317 | otherwise, in /usr/tmp or /tmp; | |
2318 | or finally the current directory if all else fails. */ | |
2319 | ||
2320 | static const char *temp_filename; | |
2321 | ||
2322 | /* Length of the prefix. */ | |
2323 | ||
2324 | static int temp_filename_length; | |
2325 | ||
ed1f651b RS |
2326 | /* Define the list of temporary files to delete. */ |
2327 | ||
2328 | struct temp_file | |
2329 | { | |
878f32c3 | 2330 | const char *name; |
ed1f651b RS |
2331 | struct temp_file *next; |
2332 | }; | |
2333 | ||
2334 | /* Queue of files to delete on success or failure of compilation. */ | |
2335 | static struct temp_file *always_delete_queue; | |
2336 | /* Queue of files to delete on failure of compilation. */ | |
2337 | static struct temp_file *failure_delete_queue; | |
2338 | ||
2339 | /* Record FILENAME as a file to be deleted automatically. | |
2340 | ALWAYS_DELETE nonzero means delete it if all compilation succeeds; | |
2341 | otherwise delete it in any case. | |
2342 | FAIL_DELETE nonzero means delete it if a compilation step fails; | |
2343 | otherwise delete it in any case. */ | |
2344 | ||
d991c721 | 2345 | void |
1d088dee | 2346 | record_temp_file (const char *filename, int always_delete, int fail_delete) |
ed1f651b | 2347 | { |
b3694847 | 2348 | char *const name = xstrdup (filename); |
ed1f651b RS |
2349 | |
2350 | if (always_delete) | |
2351 | { | |
b3694847 | 2352 | struct temp_file *temp; |
ed1f651b | 2353 | for (temp = always_delete_queue; temp; temp = temp->next) |
ba78087b | 2354 | if (! filename_cmp (name, temp->name)) |
af121e82 ML |
2355 | { |
2356 | free (name); | |
2357 | goto already1; | |
2358 | } | |
e9a25f70 | 2359 | |
5ed6ace5 | 2360 | temp = XNEW (struct temp_file); |
ed1f651b RS |
2361 | temp->next = always_delete_queue; |
2362 | temp->name = name; | |
2363 | always_delete_queue = temp; | |
e9a25f70 | 2364 | |
ed1f651b RS |
2365 | already1:; |
2366 | } | |
2367 | ||
2368 | if (fail_delete) | |
2369 | { | |
b3694847 | 2370 | struct temp_file *temp; |
ed1f651b | 2371 | for (temp = failure_delete_queue; temp; temp = temp->next) |
ba78087b | 2372 | if (! filename_cmp (name, temp->name)) |
fc429b48 TB |
2373 | { |
2374 | free (name); | |
2375 | goto already2; | |
2376 | } | |
e9a25f70 | 2377 | |
5ed6ace5 | 2378 | temp = XNEW (struct temp_file); |
ed1f651b RS |
2379 | temp->next = failure_delete_queue; |
2380 | temp->name = name; | |
2381 | failure_delete_queue = temp; | |
e9a25f70 | 2382 | |
ed1f651b RS |
2383 | already2:; |
2384 | } | |
2385 | } | |
2386 | ||
2387 | /* Delete all the temporary files whose names we previously recorded. */ | |
2388 | ||
8fd58397 DR |
2389 | #ifndef DELETE_IF_ORDINARY |
2390 | #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \ | |
2391 | do \ | |
2392 | { \ | |
2393 | if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \ | |
2394 | if (unlink (NAME) < 0) \ | |
2395 | if (VERBOSE_FLAG) \ | |
2396 | perror_with_name (NAME); \ | |
2397 | } while (0) | |
2398 | #endif | |
2399 | ||
d5ea2ac4 | 2400 | static void |
1d088dee | 2401 | delete_if_ordinary (const char *name) |
d5ea2ac4 RK |
2402 | { |
2403 | struct stat st; | |
2404 | #ifdef DEBUG | |
2405 | int i, c; | |
2406 | ||
2407 | printf ("Delete %s? (y or n) ", name); | |
2408 | fflush (stdout); | |
2409 | i = getchar (); | |
2410 | if (i != '\n') | |
e9a25f70 JL |
2411 | while ((c = getchar ()) != '\n' && c != EOF) |
2412 | ; | |
2413 | ||
d5ea2ac4 RK |
2414 | if (i == 'y' || i == 'Y') |
2415 | #endif /* DEBUG */ | |
8fd58397 | 2416 | DELETE_IF_ORDINARY (name, st, verbose_flag); |
d5ea2ac4 RK |
2417 | } |
2418 | ||
ed1f651b | 2419 | static void |
1d088dee | 2420 | delete_temp_files (void) |
ed1f651b | 2421 | { |
b3694847 | 2422 | struct temp_file *temp; |
ed1f651b RS |
2423 | |
2424 | for (temp = always_delete_queue; temp; temp = temp->next) | |
d5ea2ac4 | 2425 | delete_if_ordinary (temp->name); |
ed1f651b RS |
2426 | always_delete_queue = 0; |
2427 | } | |
2428 | ||
2429 | /* Delete all the files to be deleted on error. */ | |
2430 | ||
2431 | static void | |
1d088dee | 2432 | delete_failure_queue (void) |
ed1f651b | 2433 | { |
b3694847 | 2434 | struct temp_file *temp; |
ed1f651b RS |
2435 | |
2436 | for (temp = failure_delete_queue; temp; temp = temp->next) | |
d5ea2ac4 | 2437 | delete_if_ordinary (temp->name); |
ed1f651b RS |
2438 | } |
2439 | ||
2440 | static void | |
1d088dee | 2441 | clear_failure_queue (void) |
ed1f651b RS |
2442 | { |
2443 | failure_delete_queue = 0; | |
2444 | } | |
b3865ca9 | 2445 | \f |
00dcee0c AM |
2446 | /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK |
2447 | returns non-NULL. | |
2448 | If DO_MULTI is true iterate over the paths twice, first with multilib | |
2449 | suffix then without, otherwise iterate over the paths once without | |
2450 | adding a multilib suffix. When DO_MULTI is true, some attempt is made | |
2451 | to avoid visiting the same path twice, but we could do better. For | |
2452 | instance, /usr/lib/../lib is considered different from /usr/lib. | |
2453 | At least EXTRA_SPACE chars past the end of the path passed to | |
2454 | CALLBACK are available for use by the callback. | |
2455 | CALLBACK_INFO allows extra parameters to be passed to CALLBACK. | |
2456 | ||
2457 | Returns the value returned by CALLBACK. */ | |
2458 | ||
2459 | static void * | |
2460 | for_each_path (const struct path_prefix *paths, | |
2461 | bool do_multi, | |
2462 | size_t extra_space, | |
2463 | void *(*callback) (char *, void *), | |
2464 | void *callback_info) | |
b3865ca9 | 2465 | { |
00dcee0c AM |
2466 | struct prefix_list *pl; |
2467 | const char *multi_dir = NULL; | |
2468 | const char *multi_os_dir = NULL; | |
e0cdc09f | 2469 | const char *multiarch_suffix = NULL; |
00dcee0c AM |
2470 | const char *multi_suffix; |
2471 | const char *just_multi_suffix; | |
2472 | char *path = NULL; | |
2473 | void *ret = NULL; | |
2474 | bool skip_multi_dir = false; | |
2475 | bool skip_multi_os_dir = false; | |
2476 | ||
2477 | multi_suffix = machine_suffix; | |
2478 | just_multi_suffix = just_machine_suffix; | |
2479 | if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0) | |
b3865ca9 | 2480 | { |
00dcee0c AM |
2481 | multi_dir = concat (multilib_dir, dir_separator_str, NULL); |
2482 | multi_suffix = concat (multi_suffix, multi_dir, NULL); | |
2483 | just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL); | |
2484 | } | |
2485 | if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0) | |
2486 | multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL); | |
e0cdc09f MK |
2487 | if (multiarch_dir) |
2488 | multiarch_suffix = concat (multiarch_dir, dir_separator_str, NULL); | |
b3865ca9 | 2489 | |
00dcee0c AM |
2490 | while (1) |
2491 | { | |
2492 | size_t multi_dir_len = 0; | |
2493 | size_t multi_os_dir_len = 0; | |
e0cdc09f | 2494 | size_t multiarch_len = 0; |
00dcee0c AM |
2495 | size_t suffix_len; |
2496 | size_t just_suffix_len; | |
2497 | size_t len; | |
2498 | ||
2499 | if (multi_dir) | |
2500 | multi_dir_len = strlen (multi_dir); | |
2501 | if (multi_os_dir) | |
2502 | multi_os_dir_len = strlen (multi_os_dir); | |
e0cdc09f MK |
2503 | if (multiarch_suffix) |
2504 | multiarch_len = strlen (multiarch_suffix); | |
00dcee0c AM |
2505 | suffix_len = strlen (multi_suffix); |
2506 | just_suffix_len = strlen (just_multi_suffix); | |
2507 | ||
2508 | if (path == NULL) | |
b3865ca9 | 2509 | { |
00dcee0c | 2510 | len = paths->max_len + extra_space + 1; |
e0cdc09f | 2511 | len += MAX (MAX (suffix_len, multi_os_dir_len), multiarch_len); |
5ed6ace5 | 2512 | path = XNEWVEC (char, len); |
b3865ca9 RS |
2513 | } |
2514 | ||
00dcee0c | 2515 | for (pl = paths->plist; pl != 0; pl = pl->next) |
ae04227b | 2516 | { |
00dcee0c AM |
2517 | len = strlen (pl->prefix); |
2518 | memcpy (path, pl->prefix, len); | |
9218435e | 2519 | |
00dcee0c AM |
2520 | /* Look first in MACHINE/VERSION subdirectory. */ |
2521 | if (!skip_multi_dir) | |
2522 | { | |
2523 | memcpy (path + len, multi_suffix, suffix_len + 1); | |
2524 | ret = callback (path, callback_info); | |
2525 | if (ret) | |
2526 | break; | |
2527 | } | |
2528 | ||
2529 | /* Some paths are tried with just the machine (ie. target) | |
2530 | subdir. This is used for finding as, ld, etc. */ | |
2531 | if (!skip_multi_dir | |
2532 | && pl->require_machine_suffix == 2) | |
2533 | { | |
2534 | memcpy (path + len, just_multi_suffix, just_suffix_len + 1); | |
2535 | ret = callback (path, callback_info); | |
2536 | if (ret) | |
2537 | break; | |
2538 | } | |
2539 | ||
e0cdc09f MK |
2540 | /* Now try the multiarch path. */ |
2541 | if (!skip_multi_dir | |
2542 | && !pl->require_machine_suffix && multiarch_dir) | |
2543 | { | |
2544 | memcpy (path + len, multiarch_suffix, multiarch_len + 1); | |
2545 | ret = callback (path, callback_info); | |
2546 | if (ret) | |
2547 | break; | |
2548 | } | |
2549 | ||
00dcee0c AM |
2550 | /* Now try the base path. */ |
2551 | if (!pl->require_machine_suffix | |
2552 | && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir)) | |
2553 | { | |
2554 | const char *this_multi; | |
2555 | size_t this_multi_len; | |
2556 | ||
2557 | if (pl->os_multilib) | |
2558 | { | |
2559 | this_multi = multi_os_dir; | |
2560 | this_multi_len = multi_os_dir_len; | |
2561 | } | |
2562 | else | |
2563 | { | |
2564 | this_multi = multi_dir; | |
2565 | this_multi_len = multi_dir_len; | |
2566 | } | |
2567 | ||
2568 | if (this_multi_len) | |
2569 | memcpy (path + len, this_multi, this_multi_len + 1); | |
2570 | else | |
2571 | path[len] = '\0'; | |
2572 | ||
2573 | ret = callback (path, callback_info); | |
2574 | if (ret) | |
2575 | break; | |
2576 | } | |
ae04227b | 2577 | } |
00dcee0c AM |
2578 | if (pl) |
2579 | break; | |
ae04227b | 2580 | |
00dcee0c AM |
2581 | if (multi_dir == NULL && multi_os_dir == NULL) |
2582 | break; | |
b3865ca9 | 2583 | |
00dcee0c AM |
2584 | /* Run through the paths again, this time without multilibs. |
2585 | Don't repeat any we have already seen. */ | |
2586 | if (multi_dir) | |
2587 | { | |
b1d5455a | 2588 | free (CONST_CAST (char *, multi_dir)); |
00dcee0c | 2589 | multi_dir = NULL; |
b1d5455a | 2590 | free (CONST_CAST (char *, multi_suffix)); |
00dcee0c | 2591 | multi_suffix = machine_suffix; |
b1d5455a | 2592 | free (CONST_CAST (char *, just_multi_suffix)); |
00dcee0c | 2593 | just_multi_suffix = just_machine_suffix; |
b3865ca9 | 2594 | } |
00dcee0c AM |
2595 | else |
2596 | skip_multi_dir = true; | |
2597 | if (multi_os_dir) | |
2598 | { | |
b1d5455a | 2599 | free (CONST_CAST (char *, multi_os_dir)); |
00dcee0c AM |
2600 | multi_os_dir = NULL; |
2601 | } | |
2602 | else | |
2603 | skip_multi_os_dir = true; | |
2604 | } | |
2605 | ||
2606 | if (multi_dir) | |
2607 | { | |
b1d5455a KG |
2608 | free (CONST_CAST (char *, multi_dir)); |
2609 | free (CONST_CAST (char *, multi_suffix)); | |
2610 | free (CONST_CAST (char *, just_multi_suffix)); | |
b3865ca9 | 2611 | } |
00dcee0c | 2612 | if (multi_os_dir) |
b1d5455a | 2613 | free (CONST_CAST (char *, multi_os_dir)); |
00dcee0c AM |
2614 | if (ret != path) |
2615 | free (path); | |
2616 | return ret; | |
2617 | } | |
2618 | ||
2619 | /* Callback for build_search_list. Adds path to obstack being built. */ | |
2620 | ||
2621 | struct add_to_obstack_info { | |
2622 | struct obstack *ob; | |
2623 | bool check_dir; | |
2624 | bool first_time; | |
2625 | }; | |
2626 | ||
2627 | static void * | |
2628 | add_to_obstack (char *path, void *data) | |
2629 | { | |
e1e4cdc4 | 2630 | struct add_to_obstack_info *info = (struct add_to_obstack_info *) data; |
00dcee0c AM |
2631 | |
2632 | if (info->check_dir && !is_directory (path, false)) | |
2633 | return NULL; | |
2634 | ||
2635 | if (!info->first_time) | |
2636 | obstack_1grow (info->ob, PATH_SEPARATOR); | |
2637 | ||
2638 | obstack_grow (info->ob, path, strlen (path)); | |
2639 | ||
2640 | info->first_time = false; | |
2641 | return NULL; | |
2642 | } | |
2643 | ||
47d33318 FXC |
2644 | /* Add or change the value of an environment variable, outputting the |
2645 | change to standard error if in verbose mode. */ | |
2646 | static void | |
e9c15f6e | 2647 | xputenv (const char *string) |
47d33318 | 2648 | { |
9376dd63 | 2649 | env.xput (string); |
47d33318 FXC |
2650 | } |
2651 | ||
00dcee0c AM |
2652 | /* Build a list of search directories from PATHS. |
2653 | PREFIX is a string to prepend to the list. | |
2654 | If CHECK_DIR_P is true we ensure the directory exists. | |
2655 | If DO_MULTI is true, multilib paths are output first, then | |
2656 | non-multilib paths. | |
2657 | This is used mostly by putenv_from_prefixes so we use `collect_obstack'. | |
2658 | It is also used by the --print-search-dirs flag. */ | |
2659 | ||
2660 | static char * | |
2661 | build_search_list (const struct path_prefix *paths, const char *prefix, | |
2662 | bool check_dir, bool do_multi) | |
2663 | { | |
2664 | struct add_to_obstack_info info; | |
2665 | ||
2666 | info.ob = &collect_obstack; | |
2667 | info.check_dir = check_dir; | |
2668 | info.first_time = true; | |
2669 | ||
2670 | obstack_grow (&collect_obstack, prefix, strlen (prefix)); | |
2671 | obstack_1grow (&collect_obstack, '='); | |
2672 | ||
2673 | for_each_path (paths, do_multi, 0, add_to_obstack, &info); | |
e9a25f70 | 2674 | |
3ae7de4e | 2675 | obstack_1grow (&collect_obstack, '\0'); |
7973fd2a | 2676 | return XOBFINISH (&collect_obstack, char *); |
b3865ca9 RS |
2677 | } |
2678 | ||
0f41302f MS |
2679 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables |
2680 | for collect. */ | |
2628b9d3 DE |
2681 | |
2682 | static void | |
00dcee0c AM |
2683 | putenv_from_prefixes (const struct path_prefix *paths, const char *env_var, |
2684 | bool do_multi) | |
2628b9d3 | 2685 | { |
47d33318 | 2686 | xputenv (build_search_list (paths, env_var, true, do_multi)); |
2628b9d3 | 2687 | } |
ed1f651b | 2688 | \f |
ca606201 ILT |
2689 | /* Check whether NAME can be accessed in MODE. This is like access, |
2690 | except that it never considers directories to be executable. */ | |
2691 | ||
2692 | static int | |
1d088dee | 2693 | access_check (const char *name, int mode) |
ca606201 ILT |
2694 | { |
2695 | if (mode == X_OK) | |
2696 | { | |
2697 | struct stat st; | |
2698 | ||
2699 | if (stat (name, &st) < 0 | |
2700 | || S_ISDIR (st.st_mode)) | |
2701 | return -1; | |
2702 | } | |
2703 | ||
2704 | return access (name, mode); | |
2705 | } | |
2706 | ||
00dcee0c AM |
2707 | /* Callback for find_a_file. Appends the file name to the directory |
2708 | path. If the resulting file exists in the right mode, return the | |
2709 | full pathname to the file. */ | |
2710 | ||
2711 | struct file_at_path_info { | |
2712 | const char *name; | |
2713 | const char *suffix; | |
2714 | int name_len; | |
2715 | int suffix_len; | |
2716 | int mode; | |
2717 | }; | |
2718 | ||
2719 | static void * | |
2720 | file_at_path (char *path, void *data) | |
2721 | { | |
e1e4cdc4 | 2722 | struct file_at_path_info *info = (struct file_at_path_info *) data; |
00dcee0c AM |
2723 | size_t len = strlen (path); |
2724 | ||
2725 | memcpy (path + len, info->name, info->name_len); | |
2726 | len += info->name_len; | |
2727 | ||
2728 | /* Some systems have a suffix for executable files. | |
2729 | So try appending that first. */ | |
2730 | if (info->suffix_len) | |
2731 | { | |
2732 | memcpy (path + len, info->suffix, info->suffix_len + 1); | |
2733 | if (access_check (path, info->mode) == 0) | |
2734 | return path; | |
2735 | } | |
2736 | ||
2737 | path[len] = '\0'; | |
2738 | if (access_check (path, info->mode) == 0) | |
2739 | return path; | |
2740 | ||
2741 | return NULL; | |
2742 | } | |
2743 | ||
ed1f651b | 2744 | /* Search for NAME using the prefix list PREFIXES. MODE is passed to |
00dcee0c AM |
2745 | access to check permissions. If DO_MULTI is true, search multilib |
2746 | paths then non-multilib paths, otherwise do not search multilib paths. | |
0f41302f | 2747 | Return 0 if not found, otherwise return its name, allocated with malloc. */ |
ed1f651b RS |
2748 | |
2749 | static char * | |
00dcee0c AM |
2750 | find_a_file (const struct path_prefix *pprefix, const char *name, int mode, |
2751 | bool do_multi) | |
ed1f651b | 2752 | { |
00dcee0c | 2753 | struct file_at_path_info info; |
ed1f651b | 2754 | |
ab339d62 | 2755 | #ifdef DEFAULT_ASSEMBLER |
c5c0b3d9 | 2756 | if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0) |
ad85216e | 2757 | return xstrdup (DEFAULT_ASSEMBLER); |
ab339d62 AO |
2758 | #endif |
2759 | ||
2760 | #ifdef DEFAULT_LINKER | |
c3284718 | 2761 | if (! strcmp (name, "ld") && access (DEFAULT_LINKER, mode) == 0) |
ad85216e | 2762 | return xstrdup (DEFAULT_LINKER); |
ab339d62 AO |
2763 | #endif |
2764 | ||
ed1f651b RS |
2765 | /* Determine the filename to execute (special case for absolute paths). */ |
2766 | ||
3dce1408 | 2767 | if (IS_ABSOLUTE_PATH (name)) |
ed1f651b | 2768 | { |
ab339d62 | 2769 | if (access (name, mode) == 0) |
00dcee0c | 2770 | return xstrdup (name); |
460dcab4 | 2771 | |
00dcee0c AM |
2772 | return NULL; |
2773 | } | |
460dcab4 | 2774 | |
00dcee0c AM |
2775 | info.name = name; |
2776 | info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : ""; | |
2777 | info.name_len = strlen (info.name); | |
2778 | info.suffix_len = strlen (info.suffix); | |
2779 | info.mode = mode; | |
ed1f651b | 2780 | |
e1e4cdc4 KG |
2781 | return (char*) for_each_path (pprefix, do_multi, |
2782 | info.name_len + info.suffix_len, | |
2783 | file_at_path, &info); | |
ed1f651b RS |
2784 | } |
2785 | ||
922a4beb | 2786 | /* Ranking of prefixes in the sort list. -B prefixes are put before |
9218435e | 2787 | all others. */ |
922a4beb AC |
2788 | |
2789 | enum path_prefix_priority | |
2790 | { | |
2791 | PREFIX_PRIORITY_B_OPT, | |
2792 | PREFIX_PRIORITY_LAST | |
2793 | }; | |
2794 | ||
fbe5a4a6 | 2795 | /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending |
922a4beb AC |
2796 | order according to PRIORITY. Within each PRIORITY, new entries are |
2797 | appended. | |
ed1f651b RS |
2798 | |
2799 | If WARN is nonzero, we will warn if no file is found | |
2800 | through this prefix. WARN should point to an int | |
ae04227b CH |
2801 | which will be set to 1 if this entry is used. |
2802 | ||
e9a25f70 JL |
2803 | COMPONENT is the value to be passed to update_path. |
2804 | ||
ae04227b CH |
2805 | REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without |
2806 | the complete value of machine_suffix. | |
2807 | 2 means try both machine_suffix and just_machine_suffix. */ | |
ed1f651b RS |
2808 | |
2809 | static void | |
1d088dee AJ |
2810 | add_prefix (struct path_prefix *pprefix, const char *prefix, |
2811 | const char *component, /* enum prefix_priority */ int priority, | |
1a5d37a1 | 2812 | int require_machine_suffix, int os_multilib) |
ed1f651b RS |
2813 | { |
2814 | struct prefix_list *pl, **prev; | |
2815 | int len; | |
2816 | ||
922a4beb AC |
2817 | for (prev = &pprefix->plist; |
2818 | (*prev) != NULL && (*prev)->priority <= priority; | |
2819 | prev = &(*prev)->next) | |
2820 | ; | |
ed1f651b | 2821 | |
f9da5064 | 2822 | /* Keep track of the longest prefix. */ |
ed1f651b | 2823 | |
e9a25f70 | 2824 | prefix = update_path (prefix, component); |
ed1f651b RS |
2825 | len = strlen (prefix); |
2826 | if (len > pprefix->max_len) | |
2827 | pprefix->max_len = len; | |
2828 | ||
5ed6ace5 | 2829 | pl = XNEW (struct prefix_list); |
51c04256 | 2830 | pl->prefix = prefix; |
ed1f651b | 2831 | pl->require_machine_suffix = require_machine_suffix; |
922a4beb | 2832 | pl->priority = priority; |
5bbcd587 | 2833 | pl->os_multilib = os_multilib; |
ed1f651b | 2834 | |
f9da5064 | 2835 | /* Insert after PREV. */ |
922a4beb AC |
2836 | pl->next = (*prev); |
2837 | (*prev) = pl; | |
ed1f651b | 2838 | } |
4977bab6 ZW |
2839 | |
2840 | /* Same as add_prefix, but prepending target_system_root to prefix. */ | |
f4c0a303 | 2841 | /* The target_system_root prefix has been relocated by gcc_exec_prefix. */ |
4977bab6 | 2842 | static void |
1d088dee AJ |
2843 | add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix, |
2844 | const char *component, | |
2845 | /* enum prefix_priority */ int priority, | |
1a5d37a1 | 2846 | int require_machine_suffix, int os_multilib) |
4977bab6 | 2847 | { |
3dce1408 | 2848 | if (!IS_ABSOLUTE_PATH (prefix)) |
40fecdd6 | 2849 | fatal_error (input_location, "system path %qs is not absolute", prefix); |
4977bab6 ZW |
2850 | |
2851 | if (target_system_root) | |
2852 | { | |
2fda54bd MK |
2853 | char *sysroot_no_trailing_dir_separator = xstrdup (target_system_root); |
2854 | size_t sysroot_len = strlen (target_system_root); | |
2855 | ||
2856 | if (sysroot_len > 0 | |
2857 | && target_system_root[sysroot_len - 1] == DIR_SEPARATOR) | |
2858 | sysroot_no_trailing_dir_separator[sysroot_len - 1] = '\0'; | |
2859 | ||
e7f13528 | 2860 | if (target_sysroot_suffix) |
fc429b48 TB |
2861 | prefix = concat (sysroot_no_trailing_dir_separator, |
2862 | target_sysroot_suffix, prefix, NULL); | |
2863 | else | |
2864 | prefix = concat (sysroot_no_trailing_dir_separator, prefix, NULL); | |
2865 | ||
2fda54bd | 2866 | free (sysroot_no_trailing_dir_separator); |
e7f13528 | 2867 | |
4977bab6 ZW |
2868 | /* We have to override this because GCC's notion of sysroot |
2869 | moves along with GCC. */ | |
2870 | component = "GCC"; | |
2871 | } | |
2872 | ||
2873 | add_prefix (pprefix, prefix, component, priority, | |
1a5d37a1 | 2874 | require_machine_suffix, os_multilib); |
4977bab6 | 2875 | } |
ed1f651b RS |
2876 | \f |
2877 | /* Execute the command specified by the arguments on the current line of spec. | |
2878 | When using pipes, this includes several piped-together commands | |
2879 | with `|' between them. | |
2880 | ||
2881 | Return 0 if successful, -1 if failed. */ | |
2882 | ||
2883 | static int | |
1d088dee | 2884 | execute (void) |
ed1f651b RS |
2885 | { |
2886 | int i; | |
2887 | int n_commands; /* # of command. */ | |
2888 | char *string; | |
054e88a8 | 2889 | struct pex_obj *pex; |
ed1f651b | 2890 | struct command |
d25a45d4 KH |
2891 | { |
2892 | const char *prog; /* program name. */ | |
2893 | const char **argv; /* vector of args. */ | |
d25a45d4 | 2894 | }; |
5b634ee0 | 2895 | const char *arg; |
ed1f651b RS |
2896 | |
2897 | struct command *commands; /* each command buffer with above info. */ | |
2898 | ||
3b5edfee | 2899 | gcc_assert (!processing_spec_function); |
f3226a90 | 2900 | |
fe7df9c4 SP |
2901 | if (wrapper_string) |
2902 | { | |
5b634ee0 | 2903 | string = find_a_file (&exec_prefixes, |
9771b263 | 2904 | argbuf[0], X_OK, false); |
5b634ee0 | 2905 | if (string) |
9771b263 | 2906 | argbuf[0] = string; |
fe7df9c4 SP |
2907 | insert_wrapper (wrapper_string); |
2908 | } | |
2909 | ||
ed1f651b | 2910 | /* Count # of piped commands. */ |
9771b263 | 2911 | for (n_commands = 1, i = 0; argbuf.iterate (i, &arg); i++) |
5b634ee0 | 2912 | if (strcmp (arg, "|") == 0) |
ed1f651b RS |
2913 | n_commands++; |
2914 | ||
2915 | /* Get storage for each command. */ | |
e1e4cdc4 | 2916 | commands = (struct command *) alloca (n_commands * sizeof (struct command)); |
ed1f651b RS |
2917 | |
2918 | /* Split argbuf into its separate piped processes, | |
2919 | and record info about each one. | |
2920 | Also search for the programs that are to be run. */ | |
2921 | ||
9771b263 | 2922 | argbuf.safe_push (0); |
5b634ee0 | 2923 | |
9771b263 DN |
2924 | commands[0].prog = argbuf[0]; /* first command. */ |
2925 | commands[0].argv = argbuf.address (); | |
b8698a0f | 2926 | |
fe7df9c4 SP |
2927 | if (!wrapper_string) |
2928 | { | |
2929 | string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false); | |
2930 | commands[0].argv[0] = (string) ? string : commands[0].argv[0]; | |
2931 | } | |
ed1f651b | 2932 | |
9771b263 | 2933 | for (n_commands = 1, i = 0; argbuf.iterate (i, &arg); i++) |
5b634ee0 | 2934 | if (arg && strcmp (arg, "|") == 0) |
ed1f651b | 2935 | { /* each command. */ |
6405c0ec | 2936 | #if defined (__MSDOS__) || defined (OS2) || defined (VMS) |
40fecdd6 | 2937 | fatal_error (input_location, "-pipe not supported"); |
ed1f651b | 2938 | #endif |
9771b263 | 2939 | argbuf[i] = 0; /* Termination of |
5b634ee0 | 2940 | command args. */ |
9771b263 | 2941 | commands[n_commands].prog = argbuf[i + 1]; |
5b634ee0 | 2942 | commands[n_commands].argv |
9771b263 | 2943 | = &(argbuf.address ())[i + 1]; |
5bbcd587 | 2944 | string = find_a_file (&exec_prefixes, commands[n_commands].prog, |
00dcee0c | 2945 | X_OK, false); |
ed1f651b RS |
2946 | if (string) |
2947 | commands[n_commands].argv[0] = string; | |
2948 | n_commands++; | |
2949 | } | |
2950 | ||
ed1f651b RS |
2951 | /* If -v, print what we are about to do, and maybe query. */ |
2952 | ||
b3865ca9 | 2953 | if (verbose_flag) |
ed1f651b | 2954 | { |
b8468bc7 NC |
2955 | /* For help listings, put a blank line between sub-processes. */ |
2956 | if (print_help_list) | |
2957 | fputc ('\n', stderr); | |
9218435e | 2958 | |
ed1f651b | 2959 | /* Print each piped command as a separate line. */ |
d25a45d4 | 2960 | for (i = 0; i < n_commands; i++) |
ed1f651b | 2961 | { |
37620334 | 2962 | const char *const *j; |
ed1f651b | 2963 | |
589005ff KH |
2964 | if (verbose_only_flag) |
2965 | { | |
99f78cdd IR |
2966 | for (j = commands[i].argv; *j; j++) |
2967 | { | |
88f92c0f | 2968 | const char *p; |
99f78cdd | 2969 | for (p = *j; *p; ++p) |
09b201fc JJ |
2970 | if (!ISALNUM ((unsigned char) *p) |
2971 | && *p != '_' && *p != '/' && *p != '-' && *p != '.') | |
2972 | break; | |
2973 | if (*p || !*j) | |
99f78cdd | 2974 | { |
09b201fc JJ |
2975 | fprintf (stderr, " \""); |
2976 | for (p = *j; *p; ++p) | |
2977 | { | |
2978 | if (*p == '"' || *p == '\\' || *p == '$') | |
2979 | fputc ('\\', stderr); | |
2980 | fputc (*p, stderr); | |
2981 | } | |
2982 | fputc ('"', stderr); | |
99f78cdd | 2983 | } |
7fcf46f5 JZ |
2984 | /* If it's empty, print "". */ |
2985 | else if (!**j) | |
2986 | fprintf (stderr, " \"\""); | |
09b201fc JJ |
2987 | else |
2988 | fprintf (stderr, " %s", *j); | |
99f78cdd | 2989 | } |
589005ff KH |
2990 | } |
2991 | else | |
99f78cdd | 2992 | for (j = commands[i].argv; *j; j++) |
7fcf46f5 JZ |
2993 | /* If it's empty, print "". */ |
2994 | if (!**j) | |
2995 | fprintf (stderr, " \"\""); | |
2996 | else | |
2997 | fprintf (stderr, " %s", *j); | |
ed1f651b RS |
2998 | |
2999 | /* Print a pipe symbol after all but the last command. */ | |
3000 | if (i + 1 != n_commands) | |
3001 | fprintf (stderr, " |"); | |
3002 | fprintf (stderr, "\n"); | |
3003 | } | |
3004 | fflush (stderr); | |
99f78cdd | 3005 | if (verbose_only_flag != 0) |
6a40fb21 AP |
3006 | { |
3007 | /* verbose_only_flag should act as if the spec was | |
3008 | executed, so increment execution_count before | |
ba228239 | 3009 | returning. This prevents spurious warnings about |
6a40fb21 AP |
3010 | unused linker input files, etc. */ |
3011 | execution_count++; | |
3012 | return 0; | |
3013 | } | |
ed1f651b | 3014 | #ifdef DEBUG |
2dec80c7 | 3015 | fnotice (stderr, "\nGo ahead? (y or n) "); |
ed1f651b RS |
3016 | fflush (stderr); |
3017 | i = getchar (); | |
3018 | if (i != '\n') | |
e9a25f70 JL |
3019 | while (getchar () != '\n') |
3020 | ; | |
3021 | ||
ed1f651b RS |
3022 | if (i != 'y' && i != 'Y') |
3023 | return 0; | |
3024 | #endif /* DEBUG */ | |
3025 | } | |
3026 | ||
414d23ae | 3027 | #ifdef ENABLE_VALGRIND_CHECKING |
fbe5a4a6 | 3028 | /* Run the each command through valgrind. To simplify prepending the |
414d23ae HPN |
3029 | path to valgrind and the option "-q" (for quiet operation unless |
3030 | something triggers), we allocate a separate argv array. */ | |
3031 | ||
3032 | for (i = 0; i < n_commands; i++) | |
3033 | { | |
3034 | const char **argv; | |
3035 | int argc; | |
3036 | int j; | |
3037 | ||
3038 | for (argc = 0; commands[i].argv[argc] != NULL; argc++) | |
3039 | ; | |
3040 | ||
63ab5b8c | 3041 | argv = XALLOCAVEC (const char *, argc + 3); |
414d23ae HPN |
3042 | |
3043 | argv[0] = VALGRIND_PATH; | |
3044 | argv[1] = "-q"; | |
3045 | for (j = 2; j < argc + 2; j++) | |
3046 | argv[j] = commands[i].argv[j - 2]; | |
3047 | argv[j] = NULL; | |
3048 | ||
3049 | commands[i].argv = argv; | |
3050 | commands[i].prog = argv[0]; | |
3051 | } | |
3052 | #endif | |
3053 | ||
ed1f651b RS |
3054 | /* Run each piped subprocess. */ |
3055 | ||
bdde878c AO |
3056 | pex = pex_init (PEX_USE_PIPES | ((report_times || report_times_to_file) |
3057 | ? PEX_RECORD_TIMES : 0), | |
6afbc885 | 3058 | progname, temp_filename); |
054e88a8 | 3059 | if (pex == NULL) |
40fecdd6 | 3060 | fatal_error (input_location, "pex_init failed: %m"); |
054e88a8 | 3061 | |
ed1f651b RS |
3062 | for (i = 0; i < n_commands; i++) |
3063 | { | |
054e88a8 ILT |
3064 | const char *errmsg; |
3065 | int err; | |
fbd40359 | 3066 | const char *string = commands[i].argv[0]; |
ed1f651b | 3067 | |
054e88a8 ILT |
3068 | errmsg = pex_run (pex, |
3069 | ((i + 1 == n_commands ? PEX_LAST : 0) | |
3070 | | (string == commands[i].prog ? PEX_SEARCH : 0)), | |
b1d5455a | 3071 | string, CONST_CAST (char **, commands[i].argv), |
054e88a8 ILT |
3072 | NULL, NULL, &err); |
3073 | if (errmsg != NULL) | |
3074 | { | |
3075 | if (err == 0) | |
40fecdd6 | 3076 | fatal_error (input_location, errmsg); |
054e88a8 ILT |
3077 | else |
3078 | { | |
3079 | errno = err; | |
3080 | pfatal_with_name (errmsg); | |
3081 | } | |
3082 | } | |
ed1f651b | 3083 | |
dc10fd96 | 3084 | if (i && string != commands[i].prog) |
b1d5455a | 3085 | free (CONST_CAST (char *, string)); |
ed1f651b RS |
3086 | } |
3087 | ||
3088 | execution_count++; | |
3089 | ||
054e88a8 | 3090 | /* Wait for all the subprocesses to finish. */ |
ed1f651b RS |
3091 | |
3092 | { | |
054e88a8 ILT |
3093 | int *statuses; |
3094 | struct pex_time *times = NULL; | |
ed1f651b RS |
3095 | int ret_code = 0; |
3096 | ||
e1e4cdc4 | 3097 | statuses = (int *) alloca (n_commands * sizeof (int)); |
054e88a8 | 3098 | if (!pex_get_status (pex, n_commands, statuses)) |
40fecdd6 | 3099 | fatal_error (input_location, "failed to get exit status: %m"); |
054e88a8 | 3100 | |
bdde878c | 3101 | if (report_times || report_times_to_file) |
ed1f651b | 3102 | { |
e1e4cdc4 | 3103 | times = (struct pex_time *) alloca (n_commands * sizeof (struct pex_time)); |
054e88a8 | 3104 | if (!pex_get_times (pex, n_commands, times)) |
40fecdd6 | 3105 | fatal_error (input_location, "failed to get process times: %m"); |
054e88a8 | 3106 | } |
ed1f651b | 3107 | |
054e88a8 | 3108 | pex_free (pex); |
ed1f651b | 3109 | |
054e88a8 ILT |
3110 | for (i = 0; i < n_commands; ++i) |
3111 | { | |
3112 | int status = statuses[i]; | |
03c41c05 | 3113 | |
054e88a8 ILT |
3114 | if (WIFSIGNALED (status)) |
3115 | { | |
c334349b | 3116 | #ifdef SIGPIPE |
054e88a8 ILT |
3117 | /* SIGPIPE is a special case. It happens in -pipe mode |
3118 | when the compiler dies before the preprocessor is done, | |
3119 | or the assembler dies before the compiler is done. | |
3120 | There's generally been an error already, and this is | |
3121 | just fallout. So don't generate another error unless | |
3122 | we would otherwise have succeeded. */ | |
3123 | if (WTERMSIG (status) == SIGPIPE | |
3124 | && (signal_count || greatest_status >= MIN_FATAL_STATUS)) | |
eeac616e VR |
3125 | { |
3126 | signal_count++; | |
3127 | ret_code = -1; | |
3128 | } | |
054e88a8 ILT |
3129 | else |
3130 | #endif | |
b55f40c1 JJ |
3131 | internal_error_no_backtrace ("%s (program %s)", |
3132 | strsignal (WTERMSIG (status)), | |
3133 | commands[i].prog); | |
054e88a8 ILT |
3134 | } |
3135 | else if (WIFEXITED (status) | |
3136 | && WEXITSTATUS (status) >= MIN_FATAL_STATUS) | |
3137 | { | |
dc10fd96 JJ |
3138 | /* For ICEs in cc1, cc1obj, cc1plus see if it is |
3139 | reproducible or not. */ | |
3140 | const char *p; | |
3141 | if (flag_report_bug | |
3142 | && WEXITSTATUS (status) == ICE_EXIT_CODE | |
3143 | && i == 0 | |
3144 | && (p = strrchr (commands[0].argv[0], DIR_SEPARATOR)) | |
3145 | && ! strncmp (p + 1, "cc1", 3)) | |
1120a850 | 3146 | try_generate_repro (commands[0].argv); |
054e88a8 ILT |
3147 | if (WEXITSTATUS (status) > greatest_status) |
3148 | greatest_status = WEXITSTATUS (status); | |
3149 | ret_code = -1; | |
3150 | } | |
3151 | ||
bdde878c | 3152 | if (report_times || report_times_to_file) |
054e88a8 ILT |
3153 | { |
3154 | struct pex_time *pt = ×[i]; | |
3155 | double ut, st; | |
3156 | ||
3157 | ut = ((double) pt->user_seconds | |
3158 | + (double) pt->user_microseconds / 1.0e6); | |
3159 | st = ((double) pt->system_seconds | |
3160 | + (double) pt->system_microseconds / 1.0e6); | |
3161 | ||
3162 | if (ut + st != 0) | |
bdde878c AO |
3163 | { |
3164 | if (report_times) | |
2dec80c7 JM |
3165 | fnotice (stderr, "# %s %.2f %.2f\n", |
3166 | commands[i].prog, ut, st); | |
bdde878c AO |
3167 | |
3168 | if (report_times_to_file) | |
3169 | { | |
3170 | int c = 0; | |
3171 | const char *const *j; | |
3172 | ||
3173 | fprintf (report_times_to_file, "%g %g", ut, st); | |
3174 | ||
3175 | for (j = &commands[i].prog; *j; j = &commands[i].argv[++c]) | |
3176 | { | |
3177 | const char *p; | |
3178 | for (p = *j; *p; ++p) | |
3179 | if (*p == '"' || *p == '\\' || *p == '$' | |
3180 | || ISSPACE (*p)) | |
3181 | break; | |
3182 | ||
3183 | if (*p) | |
3184 | { | |
3185 | fprintf (report_times_to_file, " \""); | |
3186 | for (p = *j; *p; ++p) | |
3187 | { | |
3188 | if (*p == '"' || *p == '\\' || *p == '$') | |
3189 | fputc ('\\', report_times_to_file); | |
3190 | fputc (*p, report_times_to_file); | |
3191 | } | |
3192 | fputc ('"', report_times_to_file); | |
3193 | } | |
3194 | else | |
3195 | fprintf (report_times_to_file, " %s", *j); | |
3196 | } | |
3197 | ||
3198 | fputc ('\n', report_times_to_file); | |
3199 | } | |
3200 | } | |
054e88a8 | 3201 | } |
ed1f651b | 3202 | } |
054e88a8 | 3203 | |
dc10fd96 JJ |
3204 | if (commands[0].argv[0] != commands[0].prog) |
3205 | free (CONST_CAST (char *, commands[0].argv[0])); | |
3206 | ||
ed1f651b RS |
3207 | return ret_code; |
3208 | } | |
3209 | } | |
3210 | \f | |
3211 | /* Find all the switches given to us | |
3212 | and make a vector describing them. | |
3213 | The elements of the vector are strings, one per switch given. | |
3214 | If a switch uses following arguments, then the `part1' field | |
3215 | is the switch itself and the `args' field | |
3216 | is a null-terminated vector containing the following arguments. | |
3371362c L |
3217 | Bits in the `live_cond' field are: |
3218 | SWITCH_LIVE to indicate this switch is true in a conditional spec. | |
3219 | SWITCH_FALSE to indicate this switch is overridden by a later switch. | |
3220 | SWITCH_IGNORE to indicate this switch should be ignored (used in %<S). | |
db8d0919 TS |
3221 | SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored. |
3222 | SWITCH_KEEP_FOR_GCC to indicate that this switch, otherwise ignored, | |
3223 | should be included in COLLECT_GCC_OPTIONS. | |
94b90527 | 3224 | in all do_spec calls afterwards. Used for %<S from self specs. |
db8d0919 TS |
3225 | The `known' field describes whether this is an internal switch. |
3226 | The `validated' field describes whether any spec has looked at this switch; | |
3227 | if it remains false at the end of the run, the switch must be meaningless. | |
3228 | The `ordering' field is used to temporarily mark switches that have to be | |
3229 | kept in a specific order. */ | |
ed1f651b | 3230 | |
96f5b137 L |
3231 | #define SWITCH_LIVE (1 << 0) |
3232 | #define SWITCH_FALSE (1 << 1) | |
3233 | #define SWITCH_IGNORE (1 << 2) | |
3234 | #define SWITCH_IGNORE_PERMANENTLY (1 << 3) | |
3235 | #define SWITCH_KEEP_FOR_GCC (1 << 4) | |
8097c429 | 3236 | |
ed1f651b RS |
3237 | struct switchstr |
3238 | { | |
878f32c3 | 3239 | const char *part1; |
fbd40359 | 3240 | const char **args; |
3371362c | 3241 | unsigned int live_cond; |
d168aaee CB |
3242 | bool known; |
3243 | bool validated; | |
3244 | bool ordering; | |
ed1f651b RS |
3245 | }; |
3246 | ||
3247 | static struct switchstr *switches; | |
3248 | ||
3249 | static int n_switches; | |
3250 | ||
922e1882 JM |
3251 | static int n_switches_alloc; |
3252 | ||
2153915d AO |
3253 | /* Set to zero if -fcompare-debug is disabled, positive if it's |
3254 | enabled and we're running the first compilation, negative if it's | |
3255 | enabled and we're running the second compilation. For most of the | |
3256 | time, it's in the range -1..1, but it can be temporarily set to 2 | |
3257 | or 3 to indicate that the -fcompare-debug flags didn't come from | |
3258 | the command-line, but rather from the GCC_COMPARE_DEBUG environment | |
3259 | variable, until a synthesized -fcompare-debug flag is added to the | |
3260 | command line. */ | |
3261 | int compare_debug; | |
3262 | ||
3263 | /* Set to nonzero if we've seen the -fcompare-debug-second flag. */ | |
3264 | int compare_debug_second; | |
3265 | ||
3266 | /* Set to the flags that should be passed to the second compilation in | |
3267 | a -fcompare-debug compilation. */ | |
3268 | const char *compare_debug_opt; | |
3269 | ||
3270 | static struct switchstr *switches_debug_check[2]; | |
3271 | ||
3272 | static int n_switches_debug_check[2]; | |
3273 | ||
efe5e5a0 JM |
3274 | static int n_switches_alloc_debug_check[2]; |
3275 | ||
2153915d AO |
3276 | static char *debug_check_temp_file[2]; |
3277 | ||
817a8255 EC |
3278 | /* Language is one of three things: |
3279 | ||
3280 | 1) The name of a real programming language. | |
3281 | 2) NULL, indicating that no one has figured out | |
3282 | what it is yet. | |
3283 | 3) '*', indicating that the file should be passed | |
3284 | to the linker. */ | |
ed1f651b RS |
3285 | struct infile |
3286 | { | |
878f32c3 KG |
3287 | const char *name; |
3288 | const char *language; | |
0855eab7 CT |
3289 | struct compiler *incompiler; |
3290 | bool compiled; | |
3291 | bool preprocessed; | |
ed1f651b RS |
3292 | }; |
3293 | ||
3294 | /* Also a vector of input files specified. */ | |
3295 | ||
3296 | static struct infile *infiles; | |
3297 | ||
3a5a9edc | 3298 | int n_infiles; |
ed1f651b | 3299 | |
922e1882 JM |
3300 | static int n_infiles_alloc; |
3301 | ||
ba85c5fd OH |
3302 | /* True if undefined environment variables encountered during spec processing |
3303 | are ok to ignore, typically when we're running for --help or --version. */ | |
3304 | ||
3305 | static bool spec_undefvar_allowed; | |
3306 | ||
d1bd0ded GK |
3307 | /* True if multiple input files are being compiled to a single |
3308 | assembly file. */ | |
3309 | ||
3310 | static bool combine_inputs; | |
3311 | ||
08dc830e | 3312 | /* This counts the number of libraries added by lang_specific_driver, so that |
a2a05b0a JW |
3313 | we can tell if there were any user supplied any files or libraries. */ |
3314 | ||
3315 | static int added_libraries; | |
3316 | ||
ed1f651b RS |
3317 | /* And a vector of corresponding output files is made up later. */ |
3318 | ||
3a5a9edc | 3319 | const char **outfiles; |
853e0b2d | 3320 | \f |
45936a85 | 3321 | #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
853e0b2d RK |
3322 | |
3323 | /* Convert NAME to a new name if it is the standard suffix. DO_EXE | |
a9657ce8 DR |
3324 | is true if we should look for an executable suffix. DO_OBJ |
3325 | is true if we should look for an object suffix. */ | |
853e0b2d | 3326 | |
40cdfca6 | 3327 | static const char * |
1d088dee AJ |
3328 | convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED, |
3329 | int do_obj ATTRIBUTE_UNUSED) | |
853e0b2d | 3330 | { |
40cdfca6 | 3331 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
853e0b2d | 3332 | int i; |
40cdfca6 | 3333 | #endif |
87e690e2 MK |
3334 | int len; |
3335 | ||
3336 | if (name == NULL) | |
3337 | return NULL; | |
9218435e | 3338 | |
87e690e2 | 3339 | len = strlen (name); |
853e0b2d | 3340 | |
45936a85 DD |
3341 | #ifdef HAVE_TARGET_OBJECT_SUFFIX |
3342 | /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */ | |
a9657ce8 | 3343 | if (do_obj && len > 2 |
853e0b2d RK |
3344 | && name[len - 2] == '.' |
3345 | && name[len - 1] == 'o') | |
3346 | { | |
bdc5ed93 | 3347 | obstack_grow (&obstack, name, len - 2); |
45936a85 | 3348 | obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX)); |
7973fd2a | 3349 | name = XOBFINISH (&obstack, const char *); |
853e0b2d RK |
3350 | } |
3351 | #endif | |
3352 | ||
45936a85 | 3353 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
853e0b2d RK |
3354 | /* If there is no filetype, make it the executable suffix (which includes |
3355 | the "."). But don't get confused if we have just "-o". */ | |
45936a85 | 3356 | if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-')) |
853e0b2d RK |
3357 | return name; |
3358 | ||
e0040a8e | 3359 | for (i = len - 1; i >= 0; i--) |
509781a4 | 3360 | if (IS_DIR_SEPARATOR (name[i])) |
e0040a8e RK |
3361 | break; |
3362 | ||
3363 | for (i++; i < len; i++) | |
853e0b2d RK |
3364 | if (name[i] == '.') |
3365 | return name; | |
3366 | ||
3367 | obstack_grow (&obstack, name, len); | |
5d9669fd RK |
3368 | obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX, |
3369 | strlen (TARGET_EXECUTABLE_SUFFIX)); | |
7973fd2a | 3370 | name = XOBFINISH (&obstack, const char *); |
853e0b2d RK |
3371 | #endif |
3372 | ||
3373 | return name; | |
3374 | } | |
3375 | #endif | |
b8468bc7 NC |
3376 | \f |
3377 | /* Display the command line switches accepted by gcc. */ | |
3378 | static void | |
1d088dee | 3379 | display_help (void) |
b8468bc7 | 3380 | { |
6afbc885 | 3381 | printf (_("Usage: %s [options] file...\n"), progname); |
5e4adfba | 3382 | fputs (_("Options:\n"), stdout); |
b8468bc7 | 3383 | |
a7b2e184 MS |
3384 | fputs (_(" -pass-exit-codes Exit with highest error code from a phase.\n"), stdout); |
3385 | fputs (_(" --help Display this information.\n"), stdout); | |
3386 | fputs (_(" --target-help Display target specific command line options.\n"), stdout); | |
3387 | fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...].\n"), stdout); | |
3388 | fputs (_(" Display specific types of command line options.\n"), stdout); | |
b8468bc7 | 3389 | if (! verbose_flag) |
a7b2e184 MS |
3390 | fputs (_(" (Use '-v --help' to display command line options of sub-processes).\n"), stdout); |
3391 | fputs (_(" --version Display compiler version information.\n"), stdout); | |
3392 | fputs (_(" -dumpspecs Display all of the built in spec strings.\n"), stdout); | |
3393 | fputs (_(" -dumpversion Display the version of the compiler.\n"), stdout); | |
3394 | fputs (_(" -dumpmachine Display the compiler's target processor.\n"), stdout); | |
3395 | fputs (_(" -print-search-dirs Display the directories in the compiler's search path.\n"), stdout); | |
3396 | fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library.\n"), stdout); | |
3397 | fputs (_(" -print-file-name=<lib> Display the full path to library <lib>.\n"), stdout); | |
3398 | fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>.\n"), stdout); | |
e0cdc09f MK |
3399 | fputs (_("\ |
3400 | -print-multiarch Display the target's normalized GNU triplet, used as\n\ | |
a7b2e184 MS |
3401 | a component in the library path.\n"), stdout); |
3402 | fputs (_(" -print-multi-directory Display the root directory for versions of libgcc.\n"), stdout); | |
5e4adfba PT |
3403 | fputs (_("\ |
3404 | -print-multi-lib Display the mapping between command line options and\n\ | |
a7b2e184 MS |
3405 | multiple library search directories.\n"), stdout); |
3406 | fputs (_(" -print-multi-os-directory Display the relative path to OS libraries.\n"), stdout); | |
3407 | fputs (_(" -print-sysroot Display the target libraries directory.\n"), stdout); | |
3408 | fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers.\n"), stdout); | |
3409 | fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler.\n"), stdout); | |
3410 | fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor.\n"), stdout); | |
3411 | fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker.\n"), stdout); | |
3412 | fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler.\n"), stdout); | |
3413 | fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor.\n"), stdout); | |
3414 | fputs (_(" -Xlinker <arg> Pass <arg> on to the linker.\n"), stdout); | |
3415 | fputs (_(" -save-temps Do not delete intermediate files.\n"), stdout); | |
3416 | fputs (_(" -save-temps=<arg> Do not delete intermediate files.\n"), stdout); | |
ba0c638e SB |
3417 | fputs (_("\ |
3418 | -no-canonical-prefixes Do not canonicalize paths when building relative\n\ | |
a7b2e184 MS |
3419 | prefixes to other gcc components.\n"), stdout); |
3420 | fputs (_(" -pipe Use pipes rather than intermediate files.\n"), stdout); | |
3421 | fputs (_(" -time Time the execution of each subprocess.\n"), stdout); | |
3422 | fputs (_(" -specs=<file> Override built-in specs with the contents of <file>.\n"), stdout); | |
3423 | fputs (_(" -std=<standard> Assume that the input sources are for <standard>.\n"), stdout); | |
160633c6 MM |
3424 | fputs (_("\ |
3425 | --sysroot=<directory> Use <directory> as the root directory for headers\n\ | |
a7b2e184 MS |
3426 | and libraries.\n"), stdout); |
3427 | fputs (_(" -B <directory> Add <directory> to the compiler's search paths.\n"), stdout); | |
3428 | fputs (_(" -v Display the programs invoked by the compiler.\n"), stdout); | |
3429 | fputs (_(" -### Like -v but options quoted and commands not executed.\n"), stdout); | |
3430 | fputs (_(" -E Preprocess only; do not compile, assemble or link.\n"), stdout); | |
3431 | fputs (_(" -S Compile only; do not assemble or link.\n"), stdout); | |
3432 | fputs (_(" -c Compile and assemble, but do not link.\n"), stdout); | |
3433 | fputs (_(" -o <file> Place the output into <file>.\n"), stdout); | |
3434 | fputs (_(" -pie Create a position independent executable.\n"), stdout); | |
3435 | fputs (_(" -shared Create a shared library.\n"), stdout); | |
5e4adfba | 3436 | fputs (_("\ |
a7b2e184 | 3437 | -x <language> Specify the language of the following input files.\n\ |
8e854b76 | 3438 | Permissible languages include: c c++ assembler none\n\ |
1737c953 | 3439 | 'none' means revert to the default behavior of\n\ |
a7b2e184 | 3440 | guessing the language based on the file's extension.\n\ |
5e4adfba PT |
3441 | "), stdout); |
3442 | ||
0c386769 | 3443 | printf (_("\ |
d991c721 BK |
3444 | \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\ |
3445 | passed on to the various sub-processes invoked by %s. In order to pass\n\ | |
3446 | other options on to these processes the -W<letter> options must be used.\n\ | |
6afbc885 | 3447 | "), progname); |
b8468bc7 NC |
3448 | |
3449 | /* The rest of the options are displayed by invocations of the various | |
3450 | sub-processes. */ | |
3451 | } | |
3452 | ||
9218435e | 3453 | static void |
1d088dee | 3454 | add_preprocessor_option (const char *option, int len) |
9218435e | 3455 | { |
9771b263 | 3456 | preprocessor_options.safe_push (save_string (option, len)); |
40f943dd | 3457 | } |
9218435e KH |
3458 | |
3459 | static void | |
1d088dee | 3460 | add_assembler_option (const char *option, int len) |
878f32c3 | 3461 | { |
9771b263 | 3462 | assembler_options.safe_push (save_string (option, len)); |
b8468bc7 | 3463 | } |
9218435e KH |
3464 | |
3465 | static void | |
1d088dee | 3466 | add_linker_option (const char *option, int len) |
878f32c3 | 3467 | { |
9771b263 | 3468 | linker_options.safe_push (save_string (option, len)); |
40f943dd | 3469 | } |
853e0b2d | 3470 | \f |
922e1882 JM |
3471 | /* Allocate space for an input file in infiles. */ |
3472 | ||
3473 | static void | |
3474 | alloc_infile (void) | |
3475 | { | |
3476 | if (n_infiles_alloc == 0) | |
3477 | { | |
3478 | n_infiles_alloc = 16; | |
3479 | infiles = XNEWVEC (struct infile, n_infiles_alloc); | |
3480 | } | |
3481 | else if (n_infiles_alloc == n_infiles) | |
3482 | { | |
3483 | n_infiles_alloc *= 2; | |
3484 | infiles = XRESIZEVEC (struct infile, infiles, n_infiles_alloc); | |
3485 | } | |
3486 | } | |
3487 | ||
3488 | /* Store an input file with the given NAME and LANGUAGE in | |
3489 | infiles. */ | |
3490 | ||
3491 | static void | |
3492 | add_infile (const char *name, const char *language) | |
3493 | { | |
3494 | alloc_infile (); | |
3495 | infiles[n_infiles].name = name; | |
3496 | infiles[n_infiles++].language = language; | |
3497 | } | |
3498 | ||
3499 | /* Allocate space for a switch in switches. */ | |
3500 | ||
3501 | static void | |
3502 | alloc_switch (void) | |
3503 | { | |
3504 | if (n_switches_alloc == 0) | |
3505 | { | |
3506 | n_switches_alloc = 16; | |
3507 | switches = XNEWVEC (struct switchstr, n_switches_alloc); | |
3508 | } | |
3509 | else if (n_switches_alloc == n_switches) | |
3510 | { | |
3511 | n_switches_alloc *= 2; | |
3512 | switches = XRESIZEVEC (struct switchstr, switches, n_switches_alloc); | |
3513 | } | |
3514 | } | |
3515 | ||
603349bf | 3516 | /* Save an option OPT with N_ARGS arguments in array ARGS, marking it |
d168aaee | 3517 | as validated if VALIDATED and KNOWN if it is an internal switch. */ |
603349bf JM |
3518 | |
3519 | static void | |
3520 | save_switch (const char *opt, size_t n_args, const char *const *args, | |
d168aaee | 3521 | bool validated, bool known) |
603349bf JM |
3522 | { |
3523 | alloc_switch (); | |
3524 | switches[n_switches].part1 = opt + 1; | |
3525 | if (n_args == 0) | |
3526 | switches[n_switches].args = 0; | |
3527 | else | |
3528 | { | |
3529 | switches[n_switches].args = XNEWVEC (const char *, n_args + 1); | |
3530 | memcpy (switches[n_switches].args, args, n_args * sizeof (const char *)); | |
3531 | switches[n_switches].args[n_args] = NULL; | |
3532 | } | |
3533 | ||
3534 | switches[n_switches].live_cond = 0; | |
3535 | switches[n_switches].validated = validated; | |
d168aaee | 3536 | switches[n_switches].known = known; |
603349bf JM |
3537 | switches[n_switches].ordering = 0; |
3538 | n_switches++; | |
3539 | } | |
3540 | ||
3541 | /* Handle an option DECODED that is unknown to the option-processing | |
66017846 | 3542 | machinery. */ |
603349bf JM |
3543 | |
3544 | static bool | |
3545 | driver_unknown_option_callback (const struct cl_decoded_option *decoded) | |
3546 | { | |
66017846 JM |
3547 | const char *opt = decoded->arg; |
3548 | if (opt[1] == 'W' && opt[2] == 'n' && opt[3] == 'o' && opt[4] == '-' | |
3549 | && !(decoded->errors & CL_ERR_NEGATIVE)) | |
3550 | { | |
3551 | /* Leave unknown -Wno-* options for the compiler proper, to be | |
3552 | diagnosed only if there are warnings. */ | |
3553 | save_switch (decoded->canonical_option[0], | |
3554 | decoded->canonical_option_num_elements - 1, | |
d168aaee CB |
3555 | &decoded->canonical_option[1], false, true); |
3556 | return false; | |
3557 | } | |
3558 | if (decoded->opt_index == OPT_SPECIAL_unknown) | |
3559 | { | |
026c3cfd | 3560 | /* Give it a chance to define it a spec file. */ |
d168aaee CB |
3561 | save_switch (decoded->canonical_option[0], |
3562 | decoded->canonical_option_num_elements - 1, | |
3563 | &decoded->canonical_option[1], false, false); | |
66017846 JM |
3564 | return false; |
3565 | } | |
3566 | else | |
3567 | return true; | |
603349bf JM |
3568 | } |
3569 | ||
3570 | /* Handle an option DECODED that is not marked as CL_DRIVER. | |
3571 | LANG_MASK will always be CL_DRIVER. */ | |
3572 | ||
3573 | static void | |
3574 | driver_wrong_lang_callback (const struct cl_decoded_option *decoded, | |
3575 | unsigned int lang_mask ATTRIBUTE_UNUSED) | |
3576 | { | |
3577 | /* At this point, non-driver options are accepted (and expected to | |
3578 | be passed down by specs) unless marked to be rejected by the | |
3579 | driver. Options to be rejected by the driver but accepted by the | |
3580 | compilers proper are treated just like completely unknown | |
3581 | options. */ | |
3582 | const struct cl_option *option = &cl_options[decoded->opt_index]; | |
3583 | ||
300d83d9 | 3584 | if (option->cl_reject_driver) |
603349bf JM |
3585 | error ("unrecognized command line option %qs", |
3586 | decoded->orig_option_with_args_text); | |
3587 | else | |
66017846 JM |
3588 | save_switch (decoded->canonical_option[0], |
3589 | decoded->canonical_option_num_elements - 1, | |
d168aaee | 3590 | &decoded->canonical_option[1], false, true); |
603349bf JM |
3591 | } |
3592 | ||
603349bf JM |
3593 | static const char *spec_lang = 0; |
3594 | static int last_language_n_infiles; | |
3595 | ||
c713ddc0 BS |
3596 | /* Parse -foffload option argument. */ |
3597 | ||
3598 | static void | |
3599 | handle_foffload_option (const char *arg) | |
3600 | { | |
3601 | const char *c, *cur, *n, *next, *end; | |
3602 | char *target; | |
3603 | ||
3604 | /* If option argument starts with '-' then no target is specified and we | |
3605 | do not need to parse it. */ | |
3606 | if (arg[0] == '-') | |
3607 | return; | |
3608 | ||
b08dec2f DH |
3609 | end = strchr (arg, '='); |
3610 | if (end == NULL) | |
3611 | end = strchr (arg, '\0'); | |
c713ddc0 BS |
3612 | cur = arg; |
3613 | ||
3614 | while (cur < end) | |
3615 | { | |
b08dec2f DH |
3616 | next = strchr (cur, ','); |
3617 | if (next == NULL) | |
191ec640 | 3618 | next = end; |
c713ddc0 BS |
3619 | next = (next > end) ? end : next; |
3620 | ||
3621 | target = XNEWVEC (char, next - cur + 1); | |
191ec640 | 3622 | memcpy (target, cur, next - cur); |
c713ddc0 BS |
3623 | target[next - cur] = '\0'; |
3624 | ||
3625 | /* If 'disable' is passed to the option, stop parsing the option and clean | |
3626 | the list of offload targets. */ | |
3627 | if (strcmp (target, "disable") == 0) | |
3628 | { | |
3629 | free (offload_targets); | |
3630 | offload_targets = xstrdup (""); | |
3631 | break; | |
3632 | } | |
3633 | ||
3634 | /* Check that GCC is configured to support the offload target. */ | |
3635 | c = OFFLOAD_TARGETS; | |
3636 | while (c) | |
3637 | { | |
b08dec2f DH |
3638 | n = strchr (c, ','); |
3639 | if (n == NULL) | |
3640 | n = strchr (c, '\0'); | |
c713ddc0 | 3641 | |
191ec640 | 3642 | if (next - cur == n - c && strncmp (target, c, n - c) == 0) |
c713ddc0 BS |
3643 | break; |
3644 | ||
3645 | c = *n ? n + 1 : NULL; | |
3646 | } | |
3647 | ||
3648 | if (!c) | |
40fecdd6 JM |
3649 | fatal_error (input_location, |
3650 | "GCC is not configured to support %s as offload target", | |
c713ddc0 BS |
3651 | target); |
3652 | ||
3653 | if (!offload_targets) | |
191ec640 IT |
3654 | { |
3655 | offload_targets = target; | |
3656 | target = NULL; | |
3657 | } | |
c713ddc0 BS |
3658 | else |
3659 | { | |
3660 | /* Check that the target hasn't already presented in the list. */ | |
3661 | c = offload_targets; | |
3662 | do | |
3663 | { | |
b08dec2f DH |
3664 | n = strchr (c, ':'); |
3665 | if (n == NULL) | |
3666 | n = strchr (c, '\0'); | |
c713ddc0 | 3667 | |
191ec640 | 3668 | if (next - cur == n - c && strncmp (c, target, n - c) == 0) |
c713ddc0 BS |
3669 | break; |
3670 | ||
3671 | c = n + 1; | |
3672 | } | |
3673 | while (*n); | |
3674 | ||
3675 | /* If duplicate is not found, append the target to the list. */ | |
3676 | if (c > n) | |
3677 | { | |
191ec640 | 3678 | size_t offload_targets_len = strlen (offload_targets); |
c713ddc0 BS |
3679 | offload_targets |
3680 | = XRESIZEVEC (char, offload_targets, | |
a9c23810 TS |
3681 | offload_targets_len + 1 + next - cur + 1); |
3682 | offload_targets[offload_targets_len++] = ':'; | |
3683 | memcpy (offload_targets + offload_targets_len, target, next - cur + 1); | |
c713ddc0 BS |
3684 | } |
3685 | } | |
3686 | ||
3687 | cur = next + 1; | |
3688 | XDELETEVEC (target); | |
3689 | } | |
3690 | } | |
3691 | ||
603349bf JM |
3692 | /* Handle a driver option; arguments and return value as for |
3693 | handle_option. */ | |
3694 | ||
3695 | static bool | |
46625112 | 3696 | driver_handle_option (struct gcc_options *opts, |
d4d24ba4 | 3697 | struct gcc_options *opts_set, |
46625112 | 3698 | const struct cl_decoded_option *decoded, |
603349bf | 3699 | unsigned int lang_mask ATTRIBUTE_UNUSED, int kind, |
a4d8c676 | 3700 | location_t loc, |
d5478783 JM |
3701 | const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED, |
3702 | diagnostic_context *dc) | |
603349bf JM |
3703 | { |
3704 | size_t opt_index = decoded->opt_index; | |
3705 | const char *arg = decoded->arg; | |
3706 | const char *compare_debug_replacement_opt; | |
3707 | int value = decoded->value; | |
3708 | bool validated = false; | |
3709 | bool do_save = true; | |
3710 | ||
46625112 | 3711 | gcc_assert (opts == &global_options); |
d4d24ba4 | 3712 | gcc_assert (opts_set == &global_options_set); |
603349bf | 3713 | gcc_assert (kind == DK_UNSPECIFIED); |
a4d8c676 | 3714 | gcc_assert (loc == UNKNOWN_LOCATION); |
d5478783 | 3715 | gcc_assert (dc == global_dc); |
603349bf JM |
3716 | |
3717 | switch (opt_index) | |
3718 | { | |
3719 | case OPT_dumpspecs: | |
3720 | { | |
3721 | struct spec_list *sl; | |
3722 | init_spec (); | |
3723 | for (sl = specs; sl; sl = sl->next) | |
3724 | printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec)); | |
3725 | if (link_command_spec) | |
3726 | printf ("*link_command:\n%s\n\n", link_command_spec); | |
3727 | exit (0); | |
3728 | } | |
3729 | ||
3730 | case OPT_dumpversion: | |
3731 | printf ("%s\n", spec_version); | |
3732 | exit (0); | |
3733 | ||
3734 | case OPT_dumpmachine: | |
3735 | printf ("%s\n", spec_machine); | |
3736 | exit (0); | |
3737 | ||
e200444e | 3738 | case OPT__version: |
603349bf JM |
3739 | print_version = 1; |
3740 | ||
3741 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3742 | if (is_cpp_driver) | |
3743 | add_preprocessor_option ("--version", strlen ("--version")); | |
3744 | add_assembler_option ("--version", strlen ("--version")); | |
3745 | add_linker_option ("--version", strlen ("--version")); | |
3746 | break; | |
3747 | ||
e200444e | 3748 | case OPT__help: |
603349bf JM |
3749 | print_help_list = 1; |
3750 | ||
3751 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3752 | if (is_cpp_driver) | |
3753 | add_preprocessor_option ("--help", 6); | |
3754 | add_assembler_option ("--help", 6); | |
3755 | add_linker_option ("--help", 6); | |
3756 | break; | |
3757 | ||
e200444e | 3758 | case OPT__help_: |
603349bf JM |
3759 | print_subprocess_help = 2; |
3760 | break; | |
3761 | ||
e200444e | 3762 | case OPT__target_help: |
603349bf JM |
3763 | print_subprocess_help = 1; |
3764 | ||
3765 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3766 | if (is_cpp_driver) | |
3767 | add_preprocessor_option ("--target-help", 13); | |
3768 | add_assembler_option ("--target-help", 13); | |
3769 | add_linker_option ("--target-help", 13); | |
3770 | break; | |
3771 | ||
28b4fc51 | 3772 | case OPT__no_sysroot_suffix: |
603349bf JM |
3773 | case OPT_pass_exit_codes: |
3774 | case OPT_print_search_dirs: | |
3775 | case OPT_print_file_name_: | |
3776 | case OPT_print_prog_name_: | |
3777 | case OPT_print_multi_lib: | |
3778 | case OPT_print_multi_directory: | |
3779 | case OPT_print_sysroot: | |
3780 | case OPT_print_multi_os_directory: | |
e0cdc09f | 3781 | case OPT_print_multiarch: |
603349bf JM |
3782 | case OPT_print_sysroot_headers_suffix: |
3783 | case OPT_time: | |
3784 | case OPT_wrapper: | |
3785 | /* These options set the variables specified in common.opt | |
3786 | automatically, and do not need to be saved for spec | |
3787 | processing. */ | |
3788 | do_save = false; | |
3789 | break; | |
3790 | ||
3791 | case OPT_print_libgcc_file_name: | |
3792 | print_file_name = "libgcc.a"; | |
3793 | do_save = false; | |
3794 | break; | |
3795 | ||
b78e932d L |
3796 | case OPT_fuse_ld_bfd: |
3797 | use_ld = ".bfd"; | |
3798 | break; | |
3799 | ||
3800 | case OPT_fuse_ld_gold: | |
3801 | use_ld = ".gold"; | |
3802 | break; | |
3803 | ||
603349bf JM |
3804 | case OPT_fcompare_debug_second: |
3805 | compare_debug_second = 1; | |
3806 | break; | |
3807 | ||
3808 | case OPT_fcompare_debug: | |
3809 | switch (value) | |
3810 | { | |
3811 | case 0: | |
3812 | compare_debug_replacement_opt = "-fcompare-debug="; | |
3813 | arg = ""; | |
3814 | goto compare_debug_with_arg; | |
3815 | ||
3816 | case 1: | |
3817 | compare_debug_replacement_opt = "-fcompare-debug=-gtoggle"; | |
3818 | arg = "-gtoggle"; | |
3819 | goto compare_debug_with_arg; | |
3820 | ||
3821 | default: | |
3822 | gcc_unreachable (); | |
3823 | } | |
3824 | break; | |
3825 | ||
3826 | case OPT_fcompare_debug_: | |
3827 | compare_debug_replacement_opt = decoded->canonical_option[0]; | |
3828 | compare_debug_with_arg: | |
3829 | gcc_assert (decoded->canonical_option_num_elements == 1); | |
3830 | gcc_assert (arg != NULL); | |
28c14a04 | 3831 | if (*arg) |
603349bf JM |
3832 | compare_debug = 1; |
3833 | else | |
3834 | compare_debug = -1; | |
3835 | if (compare_debug < 0) | |
3836 | compare_debug_opt = NULL; | |
3837 | else | |
3838 | compare_debug_opt = arg; | |
d168aaee | 3839 | save_switch (compare_debug_replacement_opt, 0, NULL, validated, true); |
603349bf JM |
3840 | return true; |
3841 | ||
97aa8bb6 MLI |
3842 | case OPT_fdiagnostics_color_: |
3843 | diagnostic_color_init (dc, value); | |
3844 | break; | |
3845 | ||
603349bf JM |
3846 | case OPT_Wa_: |
3847 | { | |
3848 | int prev, j; | |
3849 | /* Pass the rest of this option to the assembler. */ | |
3850 | ||
3851 | /* Split the argument at commas. */ | |
3852 | prev = 0; | |
3853 | for (j = 0; arg[j]; j++) | |
3854 | if (arg[j] == ',') | |
3855 | { | |
3856 | add_assembler_option (arg + prev, j - prev); | |
3857 | prev = j + 1; | |
3858 | } | |
3859 | ||
3860 | /* Record the part after the last comma. */ | |
3861 | add_assembler_option (arg + prev, j - prev); | |
3862 | } | |
3863 | do_save = false; | |
3864 | break; | |
3865 | ||
3866 | case OPT_Wp_: | |
3867 | { | |
3868 | int prev, j; | |
3869 | /* Pass the rest of this option to the preprocessor. */ | |
3870 | ||
3871 | /* Split the argument at commas. */ | |
3872 | prev = 0; | |
3873 | for (j = 0; arg[j]; j++) | |
3874 | if (arg[j] == ',') | |
3875 | { | |
3876 | add_preprocessor_option (arg + prev, j - prev); | |
3877 | prev = j + 1; | |
3878 | } | |
3879 | ||
3880 | /* Record the part after the last comma. */ | |
3881 | add_preprocessor_option (arg + prev, j - prev); | |
3882 | } | |
3883 | do_save = false; | |
3884 | break; | |
3885 | ||
3886 | case OPT_Wl_: | |
3887 | { | |
3888 | int prev, j; | |
3889 | /* Split the argument at commas. */ | |
3890 | prev = 0; | |
3891 | for (j = 0; arg[j]; j++) | |
3892 | if (arg[j] == ',') | |
3893 | { | |
3894 | add_infile (save_string (arg + prev, j - prev), "*"); | |
3895 | prev = j + 1; | |
3896 | } | |
3897 | /* Record the part after the last comma. */ | |
3898 | add_infile (arg + prev, "*"); | |
3899 | } | |
3900 | do_save = false; | |
3901 | break; | |
3902 | ||
3903 | case OPT_Xlinker: | |
3904 | add_infile (arg, "*"); | |
3905 | do_save = false; | |
3906 | break; | |
3907 | ||
3908 | case OPT_Xpreprocessor: | |
3909 | add_preprocessor_option (arg, strlen (arg)); | |
3910 | do_save = false; | |
3911 | break; | |
3912 | ||
3913 | case OPT_Xassembler: | |
3914 | add_assembler_option (arg, strlen (arg)); | |
3915 | do_save = false; | |
3916 | break; | |
3917 | ||
3918 | case OPT_l: | |
3919 | /* POSIX allows separation of -l and the lib arg; canonicalize | |
3920 | by concatenating -l with its arg */ | |
3921 | add_infile (concat ("-l", arg, NULL), "*"); | |
3922 | do_save = false; | |
3923 | break; | |
3924 | ||
5de8299c JM |
3925 | case OPT_L: |
3926 | /* Similarly, canonicalize -L for linkers that may not accept | |
3927 | separate arguments. */ | |
d168aaee | 3928 | save_switch (concat ("-L", arg, NULL), 0, NULL, validated, true); |
5de8299c JM |
3929 | return true; |
3930 | ||
a350a6c8 IS |
3931 | case OPT_F: |
3932 | /* Likewise -F. */ | |
d168aaee | 3933 | save_switch (concat ("-F", arg, NULL), 0, NULL, validated, true); |
a350a6c8 IS |
3934 | return true; |
3935 | ||
603349bf JM |
3936 | case OPT_save_temps: |
3937 | save_temps_flag = SAVE_TEMPS_CWD; | |
3938 | validated = true; | |
3939 | break; | |
3940 | ||
3941 | case OPT_save_temps_: | |
3942 | if (strcmp (arg, "cwd") == 0) | |
3943 | save_temps_flag = SAVE_TEMPS_CWD; | |
3944 | else if (strcmp (arg, "obj") == 0 | |
3945 | || strcmp (arg, "object") == 0) | |
3946 | save_temps_flag = SAVE_TEMPS_OBJ; | |
3947 | else | |
40fecdd6 | 3948 | fatal_error (input_location, "%qs is an unknown -save-temps option", |
603349bf JM |
3949 | decoded->orig_option_with_args_text); |
3950 | break; | |
3951 | ||
3952 | case OPT_no_canonical_prefixes: | |
3953 | /* Already handled as a special case, so ignored here. */ | |
3954 | do_save = false; | |
3955 | break; | |
3956 | ||
3957 | case OPT_pipe: | |
3958 | validated = true; | |
603349bf JM |
3959 | /* These options set the variables specified in common.opt |
3960 | automatically, but do need to be saved for spec | |
3961 | processing. */ | |
3962 | break; | |
3963 | ||
603349bf JM |
3964 | case OPT_specs_: |
3965 | { | |
3966 | struct user_specs *user = XNEW (struct user_specs); | |
3967 | ||
3968 | user->next = (struct user_specs *) 0; | |
3969 | user->filename = arg; | |
3970 | if (user_specs_tail) | |
3971 | user_specs_tail->next = user; | |
3972 | else | |
3973 | user_specs_head = user; | |
3974 | user_specs_tail = user; | |
3975 | } | |
d168aaee | 3976 | validated = true; |
603349bf JM |
3977 | break; |
3978 | ||
3979 | case OPT__sysroot_: | |
3980 | target_system_root = arg; | |
3981 | target_system_root_changed = 1; | |
3982 | do_save = false; | |
3983 | break; | |
3984 | ||
3985 | case OPT_time_: | |
3986 | if (report_times_to_file) | |
3987 | fclose (report_times_to_file); | |
3988 | report_times_to_file = fopen (arg, "a"); | |
3989 | do_save = false; | |
3990 | break; | |
3991 | ||
3992 | case OPT____: | |
3993 | /* "-###" | |
3994 | This is similar to -v except that there is no execution | |
3995 | of the commands and the echoed arguments are quoted. It | |
3996 | is intended for use in shell scripts to capture the | |
3997 | driver-generated command line. */ | |
3998 | verbose_only_flag++; | |
d5478783 | 3999 | verbose_flag = 1; |
603349bf JM |
4000 | do_save = false; |
4001 | break; | |
4002 | ||
4003 | case OPT_B: | |
4004 | { | |
4005 | size_t len = strlen (arg); | |
4006 | ||
4007 | /* Catch the case where the user has forgotten to append a | |
4008 | directory separator to the path. Note, they may be using | |
4009 | -B to add an executable name prefix, eg "i386-elf-", in | |
4010 | order to distinguish between multiple installations of | |
4011 | GCC in the same directory. Hence we must check to see | |
4012 | if appending a directory separator actually makes a | |
4013 | valid directory name. */ | |
4014 | if (!IS_DIR_SEPARATOR (arg[len - 1]) | |
4015 | && is_directory (arg, false)) | |
4016 | { | |
4017 | char *tmp = XNEWVEC (char, len + 2); | |
4018 | strcpy (tmp, arg); | |
4019 | tmp[len] = DIR_SEPARATOR; | |
4020 | tmp[++len] = 0; | |
4021 | arg = tmp; | |
4022 | } | |
4023 | ||
4024 | add_prefix (&exec_prefixes, arg, NULL, | |
4025 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
4026 | add_prefix (&startfile_prefixes, arg, NULL, | |
4027 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
4028 | add_prefix (&include_prefixes, arg, NULL, | |
4029 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
4030 | } | |
4031 | validated = true; | |
4032 | break; | |
4033 | ||
603349bf JM |
4034 | case OPT_x: |
4035 | spec_lang = arg; | |
4036 | if (!strcmp (spec_lang, "none")) | |
4037 | /* Suppress the warning if -xnone comes after the last input | |
4038 | file, because alternate command interfaces like g++ might | |
4039 | find it useful to place -xnone after each input file. */ | |
4040 | spec_lang = 0; | |
4041 | else | |
4042 | last_language_n_infiles = n_infiles; | |
4043 | do_save = false; | |
4044 | break; | |
4045 | ||
603349bf JM |
4046 | case OPT_o: |
4047 | have_o = 1; | |
4048 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX) | |
4049 | arg = convert_filename (arg, ! have_c, 0); | |
4050 | #endif | |
3d00119c | 4051 | output_file = arg; |
603349bf JM |
4052 | /* Save the output name in case -save-temps=obj was used. */ |
4053 | save_temps_prefix = xstrdup (arg); | |
4054 | /* On some systems, ld cannot handle "-o" without a space. So | |
4055 | split the option from its argument. */ | |
d168aaee | 4056 | save_switch ("-o", 1, &arg, validated, true); |
603349bf JM |
4057 | return true; |
4058 | ||
4115076d L |
4059 | #ifdef ENABLE_DEFAULT_PIE |
4060 | case OPT_pie: | |
4061 | /* -pie is turned on by default. */ | |
4062 | #endif | |
4063 | ||
603349bf JM |
4064 | case OPT_static_libgcc: |
4065 | case OPT_shared_libgcc: | |
4066 | case OPT_static_libgfortran: | |
4067 | case OPT_static_libstdc__: | |
4068 | /* These are always valid, since gcc.c itself understands the | |
4069 | first two, gfortranspec.c understands -static-libgfortran and | |
4070 | g++spec.c understands -static-libstdc++ */ | |
4071 | validated = true; | |
4072 | break; | |
4073 | ||
f300e7b8 JH |
4074 | case OPT_fwpa: |
4075 | flag_wpa = ""; | |
4076 | break; | |
4077 | ||
c713ddc0 BS |
4078 | case OPT_foffload_: |
4079 | handle_foffload_option (arg); | |
4080 | break; | |
4081 | ||
603349bf | 4082 | default: |
d9d16a19 JM |
4083 | /* Various driver options need no special processing at this |
4084 | point, having been handled in a prescan above or being | |
4085 | handled by specs. */ | |
4086 | break; | |
603349bf JM |
4087 | } |
4088 | ||
4089 | if (do_save) | |
4090 | save_switch (decoded->canonical_option[0], | |
4091 | decoded->canonical_option_num_elements - 1, | |
d168aaee | 4092 | &decoded->canonical_option[1], validated, true); |
603349bf JM |
4093 | return true; |
4094 | } | |
4095 | ||
efe5e5a0 JM |
4096 | /* Put the driver's standard set of option handlers in *HANDLERS. */ |
4097 | ||
4098 | static void | |
4099 | set_option_handlers (struct cl_option_handlers *handlers) | |
4100 | { | |
4101 | handlers->unknown_option_callback = driver_unknown_option_callback; | |
4102 | handlers->wrong_lang_callback = driver_wrong_lang_callback; | |
a7d0d30f | 4103 | handlers->num_handlers = 3; |
efe5e5a0 JM |
4104 | handlers->handlers[0].handler = driver_handle_option; |
4105 | handlers->handlers[0].mask = CL_DRIVER; | |
a7d0d30f JM |
4106 | handlers->handlers[1].handler = common_handle_option; |
4107 | handlers->handlers[1].mask = CL_COMMON; | |
4108 | handlers->handlers[2].handler = target_handle_option; | |
4109 | handlers->handlers[2].mask = CL_TARGET; | |
efe5e5a0 JM |
4110 | } |
4111 | ||
ed1f651b RS |
4112 | /* Create the vector `switches' and its contents. |
4113 | Store its length in `n_switches'. */ | |
4114 | ||
4115 | static void | |
60cf253a JM |
4116 | process_command (unsigned int decoded_options_count, |
4117 | struct cl_decoded_option *decoded_options) | |
ed1f651b | 4118 | { |
878f32c3 KG |
4119 | const char *temp; |
4120 | char *temp1; | |
fc429b48 | 4121 | char *tooldir_prefix, *tooldir_prefix2; |
ba0c638e SB |
4122 | char *(*get_relative_prefix) (const char *, const char *, |
4123 | const char *) = NULL; | |
603349bf | 4124 | struct cl_option_handlers handlers; |
60cf253a | 4125 | unsigned int j; |
ed1f651b | 4126 | |
9376dd63 | 4127 | gcc_exec_prefix = env.get ("GCC_EXEC_PREFIX"); |
8eebb258 | 4128 | |
ed1f651b RS |
4129 | n_switches = 0; |
4130 | n_infiles = 0; | |
a2a05b0a | 4131 | added_libraries = 0; |
2484b6d2 | 4132 | |
53117a2f RK |
4133 | /* Figure compiler version from version string. */ |
4134 | ||
9218435e | 4135 | compiler_version = temp1 = xstrdup (version_string); |
ad85216e | 4136 | |
878f32c3 | 4137 | for (; *temp1; ++temp1) |
53117a2f | 4138 | { |
878f32c3 | 4139 | if (*temp1 == ' ') |
53117a2f | 4140 | { |
878f32c3 | 4141 | *temp1 = '\0'; |
53117a2f RK |
4142 | break; |
4143 | } | |
4144 | } | |
ed1f651b | 4145 | |
ba0c638e SB |
4146 | /* Handle any -no-canonical-prefixes flag early, to assign the function |
4147 | that builds relative prefixes. This function creates default search | |
4148 | paths that are needed later in normal option handling. */ | |
4149 | ||
e200444e | 4150 | for (j = 1; j < decoded_options_count; j++) |
ba0c638e | 4151 | { |
e200444e | 4152 | if (decoded_options[j].opt_index == OPT_no_canonical_prefixes) |
ba0c638e SB |
4153 | { |
4154 | get_relative_prefix = make_relative_prefix_ignore_links; | |
4155 | break; | |
4156 | } | |
4157 | } | |
4158 | if (! get_relative_prefix) | |
4159 | get_relative_prefix = make_relative_prefix; | |
4160 | ||
0deb20df | 4161 | /* Set up the default search paths. If there is no GCC_EXEC_PREFIX, |
60cf253a JM |
4162 | see if we can create it from the pathname specified in |
4163 | decoded_options[0].arg. */ | |
0deb20df | 4164 | |
a8ee6e2d | 4165 | gcc_libexec_prefix = standard_libexec_prefix; |
0deb20df TT |
4166 | #ifndef VMS |
4167 | /* FIXME: make_relative_prefix doesn't yet work for VMS. */ | |
4168 | if (!gcc_exec_prefix) | |
4169 | { | |
60cf253a | 4170 | gcc_exec_prefix = get_relative_prefix (decoded_options[0].arg, |
ba0c638e SB |
4171 | standard_bindir_prefix, |
4172 | standard_exec_prefix); | |
60cf253a | 4173 | gcc_libexec_prefix = get_relative_prefix (decoded_options[0].arg, |
ba0c638e SB |
4174 | standard_bindir_prefix, |
4175 | standard_libexec_prefix); | |
0deb20df | 4176 | if (gcc_exec_prefix) |
47d33318 | 4177 | xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL)); |
0deb20df | 4178 | } |
a8ee6e2d | 4179 | else |
c7370b83 JM |
4180 | { |
4181 | /* make_relative_prefix requires a program name, but | |
4182 | GCC_EXEC_PREFIX is typically a directory name with a trailing | |
4183 | / (which is ignored by make_relative_prefix), so append a | |
4184 | program name. */ | |
4185 | char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL); | |
ba0c638e SB |
4186 | gcc_libexec_prefix = get_relative_prefix (tmp_prefix, |
4187 | standard_exec_prefix, | |
4188 | standard_libexec_prefix); | |
f4c0a303 CD |
4189 | |
4190 | /* The path is unrelocated, so fallback to the original setting. */ | |
4191 | if (!gcc_libexec_prefix) | |
4192 | gcc_libexec_prefix = standard_libexec_prefix; | |
4193 | ||
c7370b83 JM |
4194 | free (tmp_prefix); |
4195 | } | |
a8ee6e2d | 4196 | #else |
0deb20df | 4197 | #endif |
f4c0a303 CD |
4198 | /* From this point onward, gcc_exec_prefix is non-null if the toolchain |
4199 | is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX | |
60cf253a JM |
4200 | or an automatically created GCC_EXEC_PREFIX from |
4201 | decoded_options[0].arg. */ | |
ed1f651b | 4202 | |
a288b143 | 4203 | /* Do language-specific adjustment/addition of flags. */ |
d9d16a19 | 4204 | lang_specific_driver (&decoded_options, &decoded_options_count, |
a288b143 AH |
4205 | &added_libraries); |
4206 | ||
8eebb258 | 4207 | if (gcc_exec_prefix) |
ed1f651b | 4208 | { |
6ed4bb9a | 4209 | int len = strlen (gcc_exec_prefix); |
c5c0b3d9 | 4210 | |
a8ee6e2d | 4211 | if (len > (int) sizeof ("/lib/gcc/") - 1 |
509781a4 | 4212 | && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1]))) |
6ed4bb9a | 4213 | { |
a8ee6e2d | 4214 | temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1; |
509781a4 | 4215 | if (IS_DIR_SEPARATOR (*temp) |
ba78087b | 4216 | && filename_ncmp (temp + 1, "lib", 3) == 0 |
509781a4 | 4217 | && IS_DIR_SEPARATOR (temp[4]) |
ba78087b | 4218 | && filename_ncmp (temp + 5, "gcc", 3) == 0) |
a8ee6e2d | 4219 | len -= sizeof ("/lib/gcc/") - 1; |
6ed4bb9a MM |
4220 | } |
4221 | ||
4222 | set_std_prefix (gcc_exec_prefix, len); | |
a8ee6e2d | 4223 | add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC", |
1a5d37a1 | 4224 | PREFIX_PRIORITY_LAST, 0, 0); |
922a4beb | 4225 | add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", |
1a5d37a1 | 4226 | PREFIX_PRIORITY_LAST, 0, 0); |
ed1f651b RS |
4227 | } |
4228 | ||
4229 | /* COMPILER_PATH and LIBRARY_PATH have values | |
4230 | that are lists of directory names with colons. */ | |
4231 | ||
9376dd63 | 4232 | temp = env.get ("COMPILER_PATH"); |
ed1f651b RS |
4233 | if (temp) |
4234 | { | |
878f32c3 | 4235 | const char *startp, *endp; |
e1e4cdc4 | 4236 | char *nstore = (char *) alloca (strlen (temp) + 3); |
ed1f651b RS |
4237 | |
4238 | startp = endp = temp; | |
4239 | while (1) | |
4240 | { | |
f6ec7e54 | 4241 | if (*endp == PATH_SEPARATOR || *endp == 0) |
ed1f651b | 4242 | { |
d25a45d4 | 4243 | strncpy (nstore, startp, endp - startp); |
ed1f651b | 4244 | if (endp == startp) |
d4f2852f | 4245 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
509781a4 | 4246 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
ed1f651b | 4247 | { |
d25a45d4 KH |
4248 | nstore[endp - startp] = DIR_SEPARATOR; |
4249 | nstore[endp - startp + 1] = 0; | |
ed1f651b RS |
4250 | } |
4251 | else | |
d25a45d4 | 4252 | nstore[endp - startp] = 0; |
922a4beb | 4253 | add_prefix (&exec_prefixes, nstore, 0, |
1a5d37a1 | 4254 | PREFIX_PRIORITY_LAST, 0, 0); |
76391e5a | 4255 | add_prefix (&include_prefixes, nstore, 0, |
1a5d37a1 | 4256 | PREFIX_PRIORITY_LAST, 0, 0); |
ed1f651b RS |
4257 | if (*endp == 0) |
4258 | break; | |
4259 | endp = startp = endp + 1; | |
4260 | } | |
4261 | else | |
4262 | endp++; | |
4263 | } | |
4264 | } | |
4265 | ||
9376dd63 | 4266 | temp = env.get (LIBRARY_PATH_ENV); |
fcc9ad83 | 4267 | if (temp && *cross_compile == '0') |
ed1f651b | 4268 | { |
878f32c3 | 4269 | const char *startp, *endp; |
e1e4cdc4 | 4270 | char *nstore = (char *) alloca (strlen (temp) + 3); |
ed1f651b RS |
4271 | |
4272 | startp = endp = temp; | |
4273 | while (1) | |
4274 | { | |
f6ec7e54 | 4275 | if (*endp == PATH_SEPARATOR || *endp == 0) |
ed1f651b | 4276 | { |
d25a45d4 | 4277 | strncpy (nstore, startp, endp - startp); |
ed1f651b | 4278 | if (endp == startp) |
d4f2852f | 4279 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
509781a4 | 4280 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
ed1f651b | 4281 | { |
d25a45d4 KH |
4282 | nstore[endp - startp] = DIR_SEPARATOR; |
4283 | nstore[endp - startp + 1] = 0; | |
ed1f651b RS |
4284 | } |
4285 | else | |
d25a45d4 | 4286 | nstore[endp - startp] = 0; |
6496a589 | 4287 | add_prefix (&startfile_prefixes, nstore, NULL, |
1a5d37a1 | 4288 | PREFIX_PRIORITY_LAST, 0, 1); |
ed1f651b RS |
4289 | if (*endp == 0) |
4290 | break; | |
4291 | endp = startp = endp + 1; | |
4292 | } | |
4293 | else | |
4294 | endp++; | |
4295 | } | |
4296 | } | |
4297 | ||
4298 | /* Use LPATH like LIBRARY_PATH (for the CMU build program). */ | |
9376dd63 | 4299 | temp = env.get ("LPATH"); |
fcc9ad83 | 4300 | if (temp && *cross_compile == '0') |
ed1f651b | 4301 | { |
878f32c3 | 4302 | const char *startp, *endp; |
e1e4cdc4 | 4303 | char *nstore = (char *) alloca (strlen (temp) + 3); |
ed1f651b RS |
4304 | |
4305 | startp = endp = temp; | |
4306 | while (1) | |
4307 | { | |
f6ec7e54 | 4308 | if (*endp == PATH_SEPARATOR || *endp == 0) |
ed1f651b | 4309 | { |
d25a45d4 | 4310 | strncpy (nstore, startp, endp - startp); |
ed1f651b | 4311 | if (endp == startp) |
d4f2852f | 4312 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
509781a4 | 4313 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
ed1f651b | 4314 | { |
d25a45d4 KH |
4315 | nstore[endp - startp] = DIR_SEPARATOR; |
4316 | nstore[endp - startp + 1] = 0; | |
ed1f651b RS |
4317 | } |
4318 | else | |
d25a45d4 | 4319 | nstore[endp - startp] = 0; |
6496a589 | 4320 | add_prefix (&startfile_prefixes, nstore, NULL, |
1a5d37a1 | 4321 | PREFIX_PRIORITY_LAST, 0, 1); |
ed1f651b RS |
4322 | if (*endp == 0) |
4323 | break; | |
4324 | endp = startp = endp + 1; | |
4325 | } | |
4326 | else | |
4327 | endp++; | |
4328 | } | |
4329 | } | |
4330 | ||
922e1882 JM |
4331 | /* Process the options and store input files and switches in their |
4332 | vectors. */ | |
4333 | ||
4334 | last_language_n_infiles = -1; | |
ed1f651b | 4335 | |
efe5e5a0 | 4336 | set_option_handlers (&handlers); |
fe7df9c4 | 4337 | |
603349bf JM |
4338 | for (j = 1; j < decoded_options_count; j++) |
4339 | { | |
4340 | switch (decoded_options[j].opt_index) | |
99f78cdd | 4341 | { |
603349bf JM |
4342 | case OPT_S: |
4343 | case OPT_c: | |
4344 | case OPT_E: | |
4345 | have_c = 1; | |
4346 | break; | |
99f78cdd | 4347 | } |
603349bf JM |
4348 | if (have_c) |
4349 | break; | |
4350 | } | |
ed1f651b | 4351 | |
603349bf JM |
4352 | for (j = 1; j < decoded_options_count; j++) |
4353 | { | |
4354 | if (decoded_options[j].opt_index == OPT_SPECIAL_input_file) | |
3a265431 | 4355 | { |
603349bf JM |
4356 | const char *arg = decoded_options[j].arg; |
4357 | const char *p = strrchr (arg, '@'); | |
922e1882 JM |
4358 | char *fname; |
4359 | long offset; | |
4360 | int consumed; | |
4361 | #ifdef HAVE_TARGET_OBJECT_SUFFIX | |
603349bf | 4362 | arg = convert_filename (arg, 0, access (arg, F_OK)); |
922e1882 JM |
4363 | #endif |
4364 | /* For LTO static archive support we handle input file | |
4365 | specifications that are composed of a filename and | |
4366 | an offset like FNAME@OFFSET. */ | |
4367 | if (p | |
603349bf | 4368 | && p != arg |
922e1882 JM |
4369 | && sscanf (p, "@%li%n", &offset, &consumed) >= 1 |
4370 | && strlen (p) == (unsigned int)consumed) | |
4371 | { | |
603349bf JM |
4372 | fname = (char *)xmalloc (p - arg + 1); |
4373 | memcpy (fname, arg, p - arg); | |
4374 | fname[p - arg] = '\0'; | |
922e1882 JM |
4375 | /* Only accept non-stdin and existing FNAME parts, otherwise |
4376 | try with the full name. */ | |
4377 | if (strcmp (fname, "-") == 0 || access (fname, F_OK) < 0) | |
4378 | { | |
4379 | free (fname); | |
603349bf | 4380 | fname = xstrdup (arg); |
922e1882 JM |
4381 | } |
4382 | } | |
4383 | else | |
603349bf | 4384 | fname = xstrdup (arg); |
d168aaee | 4385 | |
922e1882 JM |
4386 | if (strcmp (fname, "-") != 0 && access (fname, F_OK) < 0) |
4387 | perror_with_name (fname); | |
4388 | else | |
603349bf | 4389 | add_infile (arg, spec_lang); |
922e1882 JM |
4390 | |
4391 | free (fname); | |
603349bf | 4392 | continue; |
3a265431 | 4393 | } |
603349bf | 4394 | |
d4d24ba4 | 4395 | read_cmdline_option (&global_options, &global_options_set, |
a4d8c676 JM |
4396 | decoded_options + j, UNKNOWN_LOCATION, |
4397 | CL_DRIVER, &handlers, global_dc); | |
ed1f651b RS |
4398 | } |
4399 | ||
64186aad TS |
4400 | /* If the user didn't specify any, default to all configured offload |
4401 | targets. */ | |
1d899da2 | 4402 | if (ENABLE_OFFLOADING && offload_targets == NULL) |
64186aad | 4403 | handle_foffload_option (OFFLOAD_TARGETS); |
64186aad | 4404 | |
92c66d83 MLI |
4405 | if (output_file |
4406 | && strcmp (output_file, "-") != 0 | |
4407 | && strcmp (output_file, HOST_BIT_BUCKET) != 0) | |
3d00119c AB |
4408 | { |
4409 | int i; | |
4410 | for (i = 0; i < n_infiles; i++) | |
4411 | if ((!infiles[i].language || infiles[i].language[0] != '*') | |
4412 | && canonical_filename_eq (infiles[i].name, output_file)) | |
40fecdd6 JM |
4413 | fatal_error (input_location, |
4414 | "input file %qs is the same as output file", | |
3d00119c AB |
4415 | output_file); |
4416 | } | |
4417 | ||
14fdc613 MM |
4418 | /* If -save-temps=obj and -o name, create the prefix to use for %b. |
4419 | Otherwise just make -save-temps=obj the same as -save-temps=cwd. */ | |
4420 | if (save_temps_flag == SAVE_TEMPS_OBJ && save_temps_prefix != NULL) | |
4421 | { | |
4422 | save_temps_length = strlen (save_temps_prefix); | |
4423 | temp = strrchr (lbasename (save_temps_prefix), '.'); | |
4424 | if (temp) | |
4425 | { | |
4426 | save_temps_length -= strlen (temp); | |
4427 | save_temps_prefix[save_temps_length] = '\0'; | |
4428 | } | |
4429 | ||
4430 | } | |
4431 | else if (save_temps_prefix != NULL) | |
4432 | { | |
4433 | free (save_temps_prefix); | |
4434 | save_temps_prefix = NULL; | |
4435 | } | |
4436 | ||
054e88a8 | 4437 | if (save_temps_flag && use_pipes) |
4977bab6 ZW |
4438 | { |
4439 | /* -save-temps overrides -pipe, so that temp files are produced */ | |
4440 | if (save_temps_flag) | |
2dec80c7 | 4441 | warning (0, "-pipe ignored because -save-temps specified"); |
4977bab6 ZW |
4442 | use_pipes = 0; |
4443 | } | |
1d088dee | 4444 | |
2153915d AO |
4445 | if (!compare_debug) |
4446 | { | |
9376dd63 | 4447 | const char *gcd = env.get ("GCC_COMPARE_DEBUG"); |
2153915d AO |
4448 | |
4449 | if (gcd && gcd[0] == '-') | |
4450 | { | |
4451 | compare_debug = 2; | |
4452 | compare_debug_opt = gcd; | |
2153915d AO |
4453 | } |
4454 | else if (gcd && *gcd && strcmp (gcd, "0")) | |
4455 | { | |
4456 | compare_debug = 3; | |
4457 | compare_debug_opt = "-gtoggle"; | |
2153915d AO |
4458 | } |
4459 | } | |
4460 | else if (compare_debug < 0) | |
4461 | { | |
4462 | compare_debug = 0; | |
4463 | gcc_assert (!compare_debug_opt); | |
4464 | } | |
4465 | ||
f4c0a303 CD |
4466 | /* Set up the search paths. We add directories that we expect to |
4467 | contain GNU Toolchain components before directories specified by | |
4468 | the machine description so that we will find GNU components (like | |
b8698a0f | 4469 | the GNU assembler) before those of the host system. */ |
ed1f651b | 4470 | |
f4c0a303 CD |
4471 | /* If we don't know where the toolchain has been installed, use the |
4472 | configured-in locations. */ | |
4473 | if (!gcc_exec_prefix) | |
4474 | { | |
48ff801b | 4475 | #ifndef OS2 |
f4c0a303 CD |
4476 | add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC", |
4477 | PREFIX_PRIORITY_LAST, 1, 0); | |
4478 | add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS", | |
4479 | PREFIX_PRIORITY_LAST, 2, 0); | |
4480 | add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS", | |
4481 | PREFIX_PRIORITY_LAST, 2, 0); | |
48ff801b | 4482 | #endif |
f4c0a303 CD |
4483 | add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS", |
4484 | PREFIX_PRIORITY_LAST, 1, 0); | |
4485 | } | |
ed1f651b | 4486 | |
f4c0a303 | 4487 | gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix)); |
89f54035 | 4488 | tooldir_prefix2 = concat (tooldir_base_prefix, spec_machine, |
fc429b48 | 4489 | dir_separator_str, NULL); |
c648ab8a | 4490 | |
f4c0a303 CD |
4491 | /* Look for tools relative to the location from which the driver is |
4492 | running, or, if that is not available, the configured prefix. */ | |
4493 | tooldir_prefix | |
4494 | = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix, | |
fc8b3540 IV |
4495 | spec_host_machine, dir_separator_str, spec_version, |
4496 | accel_dir_suffix, dir_separator_str, tooldir_prefix2, NULL); | |
fc429b48 | 4497 | free (tooldir_prefix2); |
c648ab8a | 4498 | |
9218435e | 4499 | add_prefix (&exec_prefixes, |
d4f2852f | 4500 | concat (tooldir_prefix, "bin", dir_separator_str, NULL), |
1a5d37a1 | 4501 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0); |
48ff801b | 4502 | add_prefix (&startfile_prefixes, |
d4f2852f | 4503 | concat (tooldir_prefix, "lib", dir_separator_str, NULL), |
1a5d37a1 | 4504 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1); |
fc429b48 | 4505 | free (tooldir_prefix); |
f18fd956 | 4506 | |
047d636f DJ |
4507 | #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS) |
4508 | /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix, | |
4509 | then consider it to relocate with the rest of the GCC installation | |
4510 | if GCC_EXEC_PREFIX is set. | |
4511 | ``make_relative_prefix'' is not compiled for VMS, so don't call it. */ | |
922e1882 | 4512 | if (target_system_root && !target_system_root_changed && gcc_exec_prefix) |
4977bab6 | 4513 | { |
60cf253a | 4514 | char *tmp_prefix = get_relative_prefix (decoded_options[0].arg, |
ba0c638e SB |
4515 | standard_bindir_prefix, |
4516 | target_system_root); | |
4977bab6 | 4517 | if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0) |
047d636f DJ |
4518 | { |
4519 | target_system_root = tmp_prefix; | |
4520 | target_system_root_changed = 1; | |
4521 | } | |
4977bab6 | 4522 | } |
047d636f | 4523 | #endif |
4977bab6 | 4524 | |
004fd4d5 RS |
4525 | /* More prefixes are enabled in main, after we read the specs file |
4526 | and determine whether this is cross-compilation or not. */ | |
ed1f651b | 4527 | |
fa0d5369 | 4528 | if (n_infiles == last_language_n_infiles && spec_lang != 0) |
bdc6b402 | 4529 | warning (0, "%<-x %s%> after last input file has no effect", spec_lang); |
ed1f651b | 4530 | |
3ad2d621 DG |
4531 | /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG |
4532 | environment variable. */ | |
2153915d AO |
4533 | if (compare_debug == 2 || compare_debug == 3) |
4534 | { | |
3ad2d621 DG |
4535 | const char *opt = concat ("-fcompare-debug=", compare_debug_opt, NULL); |
4536 | save_switch (opt, 0, NULL, false, true); | |
2153915d AO |
4537 | compare_debug = 1; |
4538 | } | |
4539 | ||
69927b59 | 4540 | /* Ensure we only invoke each subprocess once. */ |
41fd0f9b | 4541 | if (print_subprocess_help || print_help_list || print_version) |
69927b59 | 4542 | { |
922e1882 | 4543 | n_infiles = 0; |
69927b59 | 4544 | |
c662432e NC |
4545 | /* Create a dummy input file, so that we can pass |
4546 | the help option on to the various sub-processes. */ | |
922e1882 | 4547 | add_infile ("help-dummy", "c"); |
69927b59 NB |
4548 | } |
4549 | ||
ba85c5fd OH |
4550 | /* Decide if undefined variable references are allowed in specs. */ |
4551 | ||
4552 | /* --version and --help alone or together are safe. Note that -v would | |
4553 | make them unsafe, as they'd then be run for subprocesses as well, the | |
4554 | location of which might depend on variables possibly coming from | |
4555 | self-specs. | |
4556 | ||
4557 | Count the number of options we have for which undefined variables | |
4558 | are harmless for sure, and check that nothing else is set. */ | |
4559 | ||
4560 | unsigned n_varsafe_options = 0; | |
4561 | ||
4562 | if (print_version) | |
4563 | n_varsafe_options++; | |
4564 | ||
4565 | if (print_help_list) | |
4566 | n_varsafe_options++; | |
4567 | ||
4568 | spec_undefvar_allowed = (n_varsafe_options == decoded_options_count - 1); | |
4569 | ||
922e1882 | 4570 | alloc_switch (); |
ed1f651b | 4571 | switches[n_switches].part1 = 0; |
922e1882 | 4572 | alloc_infile (); |
ed1f651b RS |
4573 | infiles[n_infiles].name = 0; |
4574 | } | |
b856c15d | 4575 | |
4977bab6 | 4576 | /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS |
b856c15d RO |
4577 | and place that in the environment. */ |
4578 | ||
4579 | static void | |
1d088dee | 4580 | set_collect_gcc_options (void) |
b856c15d RO |
4581 | { |
4582 | int i; | |
4583 | int first_time; | |
4584 | ||
4585 | /* Build COLLECT_GCC_OPTIONS to have all of the options specified to | |
4586 | the compiler. */ | |
4587 | obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=", | |
4588 | sizeof ("COLLECT_GCC_OPTIONS=") - 1); | |
4589 | ||
4590 | first_time = TRUE; | |
4591 | for (i = 0; (int) i < n_switches; i++) | |
4592 | { | |
4593 | const char *const *args; | |
4594 | const char *p, *q; | |
4595 | if (!first_time) | |
4596 | obstack_grow (&collect_obstack, " ", 1); | |
4597 | ||
4598 | first_time = FALSE; | |
4599 | ||
4600 | /* Ignore elided switches. */ | |
96f5b137 L |
4601 | if ((switches[i].live_cond |
4602 | & (SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC)) | |
4603 | == SWITCH_IGNORE) | |
b856c15d RO |
4604 | continue; |
4605 | ||
4606 | obstack_grow (&collect_obstack, "'-", 2); | |
4607 | q = switches[i].part1; | |
4608 | while ((p = strchr (q, '\''))) | |
4609 | { | |
4610 | obstack_grow (&collect_obstack, q, p - q); | |
4611 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4612 | q = ++p; | |
4613 | } | |
4614 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4615 | obstack_grow (&collect_obstack, "'", 1); | |
4616 | ||
4617 | for (args = switches[i].args; args && *args; args++) | |
4618 | { | |
4619 | obstack_grow (&collect_obstack, " '", 2); | |
4620 | q = *args; | |
4621 | while ((p = strchr (q, '\''))) | |
4622 | { | |
4623 | obstack_grow (&collect_obstack, q, p - q); | |
4624 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4625 | q = ++p; | |
4626 | } | |
4627 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4628 | obstack_grow (&collect_obstack, "'", 1); | |
4629 | } | |
4630 | } | |
4631 | obstack_grow (&collect_obstack, "\0", 1); | |
47d33318 | 4632 | xputenv (XOBFINISH (&collect_obstack, char *)); |
b856c15d | 4633 | } |
ed1f651b RS |
4634 | \f |
4635 | /* Process a spec string, accumulating and running commands. */ | |
4636 | ||
4637 | /* These variables describe the input file name. | |
4638 | input_file_number is the index on outfiles of this file, | |
4639 | so that the output file name can be stored for later use by %o. | |
4640 | input_basename is the start of the part of the input file | |
4641 | sans all directory names, and basename_length is the number | |
4642 | of characters starting there excluding the suffix .c or whatever. */ | |
4643 | ||
6afbc885 | 4644 | static const char *gcc_input_filename; |
ed1f651b | 4645 | static int input_file_number; |
f271358e | 4646 | size_t input_filename_length; |
ed1f651b | 4647 | static int basename_length; |
ea414c97 | 4648 | static int suffixed_basename_length; |
878f32c3 KG |
4649 | static const char *input_basename; |
4650 | static const char *input_suffix; | |
a9024779 | 4651 | #ifndef HOST_LACKS_INODE_NUMBERS |
99f78cdd | 4652 | static struct stat input_stat; |
a9024779 | 4653 | #endif |
99f78cdd | 4654 | static int input_stat_set; |
ed1f651b | 4655 | |
a9374841 MM |
4656 | /* The compiler used to process the current input file. */ |
4657 | static struct compiler *input_file_compiler; | |
4658 | ||
ed1f651b RS |
4659 | /* These are variables used within do_spec and do_spec_1. */ |
4660 | ||
4661 | /* Nonzero if an arg has been started and not yet terminated | |
4662 | (with space, tab or newline). */ | |
4663 | static int arg_going; | |
4664 | ||
4665 | /* Nonzero means %d or %g has been seen; the next arg to be terminated | |
4666 | is a temporary file name. */ | |
4667 | static int delete_this_arg; | |
4668 | ||
4669 | /* Nonzero means %w has been seen; the next arg to be terminated | |
4670 | is the output file name of this compilation. */ | |
4671 | static int this_is_output_file; | |
4672 | ||
4673 | /* Nonzero means %s has been seen; the next arg to be terminated | |
4674 | is the name of a library file and we should try the standard | |
4675 | search dirs for it. */ | |
4676 | static int this_is_library_file; | |
4677 | ||
3beb864c NC |
4678 | /* Nonzero means %T has been seen; the next arg to be terminated |
4679 | is the name of a linker script and we should try all of the | |
4680 | standard search dirs for it. If it is found insert a --script | |
4681 | command line switch and then substitute the full path in place, | |
4682 | otherwise generate an error message. */ | |
4683 | static int this_is_linker_script; | |
4684 | ||
a99bf70c JW |
4685 | /* Nonzero means that the input of this command is coming from a pipe. */ |
4686 | static int input_from_pipe; | |
4687 | ||
11972f66 | 4688 | /* Nonnull means substitute this for any suffix when outputting a switches |
dc297297 | 4689 | arguments. */ |
11972f66 NS |
4690 | static const char *suffix_subst; |
4691 | ||
13e7cedb DH |
4692 | /* If there is an argument being accumulated, terminate it and store it. */ |
4693 | ||
4694 | static void | |
4695 | end_going_arg (void) | |
4696 | { | |
4697 | if (arg_going) | |
4698 | { | |
4699 | const char *string; | |
4700 | ||
4701 | obstack_1grow (&obstack, 0); | |
4702 | string = XOBFINISH (&obstack, const char *); | |
4703 | if (this_is_library_file) | |
4704 | string = find_file (string); | |
3beb864c NC |
4705 | if (this_is_linker_script) |
4706 | { | |
4707 | char * full_script_path = find_a_file (&startfile_prefixes, string, R_OK, true); | |
4708 | ||
4709 | if (full_script_path == NULL) | |
4710 | { | |
bdc6b402 | 4711 | error ("unable to locate default linker script %qs in the library search paths", string); |
3beb864c NC |
4712 | /* Script was not found on search path. */ |
4713 | return; | |
4714 | } | |
4715 | store_arg ("--script", false, false); | |
4716 | string = full_script_path; | |
4717 | } | |
13e7cedb DH |
4718 | store_arg (string, delete_this_arg, this_is_output_file); |
4719 | if (this_is_output_file) | |
4720 | outfiles[input_file_number] = string; | |
4721 | arg_going = 0; | |
4722 | } | |
4723 | } | |
4724 | ||
fe7df9c4 SP |
4725 | |
4726 | /* Parse the WRAPPER string which is a comma separated list of the command line | |
4727 | and insert them into the beginning of argbuf. */ | |
4728 | ||
4729 | static void | |
4730 | insert_wrapper (const char *wrapper) | |
4731 | { | |
4732 | int n = 0; | |
4733 | int i; | |
4734 | char *buf = xstrdup (wrapper); | |
4735 | char *p = buf; | |
9771b263 | 4736 | unsigned int old_length = argbuf.length (); |
fe7df9c4 SP |
4737 | |
4738 | do | |
4739 | { | |
4740 | n++; | |
4741 | while (*p == ',') | |
4742 | p++; | |
4743 | } | |
4744 | while ((p = strchr (p, ',')) != NULL); | |
4745 | ||
9771b263 DN |
4746 | argbuf.safe_grow (old_length + n); |
4747 | memmove (argbuf.address () + n, | |
4748 | argbuf.address (), | |
5b634ee0 | 4749 | old_length * sizeof (const_char_p)); |
fe7df9c4 SP |
4750 | |
4751 | i = 0; | |
4752 | p = buf; | |
4753 | do | |
4754 | { | |
4755 | while (*p == ',') | |
4756 | { | |
4757 | *p = 0; | |
4758 | p++; | |
4759 | } | |
9771b263 | 4760 | argbuf[i] = p; |
5b634ee0 | 4761 | i++; |
fe7df9c4 SP |
4762 | } |
4763 | while ((p = strchr (p, ',')) != NULL); | |
4764 | gcc_assert (i == n); | |
fe7df9c4 SP |
4765 | } |
4766 | ||
ed1f651b RS |
4767 | /* Process the spec SPEC and run the commands specified therein. |
4768 | Returns 0 if the spec is successfully processed; -1 if failed. */ | |
4769 | ||
f271358e | 4770 | int |
1d088dee | 4771 | do_spec (const char *spec) |
ed1f651b RS |
4772 | { |
4773 | int value; | |
4774 | ||
343f59d9 | 4775 | value = do_spec_2 (spec); |
ed1f651b RS |
4776 | |
4777 | /* Force out any unfinished command. | |
4778 | If -pipe, this forces out the last command if it ended in `|'. */ | |
4779 | if (value == 0) | |
4780 | { | |
9771b263 DN |
4781 | if (argbuf.length () > 0 |
4782 | && !strcmp (argbuf.last (), "|")) | |
4783 | argbuf.pop (); | |
ed1f651b | 4784 | |
b856c15d RO |
4785 | set_collect_gcc_options (); |
4786 | ||
9771b263 | 4787 | if (argbuf.length () > 0) |
ed1f651b RS |
4788 | value = execute (); |
4789 | } | |
4790 | ||
4791 | return value; | |
4792 | } | |
4793 | ||
343f59d9 | 4794 | static int |
1d088dee | 4795 | do_spec_2 (const char *spec) |
343f59d9 | 4796 | { |
6544fbcb RS |
4797 | int result; |
4798 | ||
343f59d9 AM |
4799 | clear_args (); |
4800 | arg_going = 0; | |
4801 | delete_this_arg = 0; | |
4802 | this_is_output_file = 0; | |
4803 | this_is_library_file = 0; | |
3beb864c | 4804 | this_is_linker_script = 0; |
343f59d9 AM |
4805 | input_from_pipe = 0; |
4806 | suffix_subst = NULL; | |
4807 | ||
6544fbcb RS |
4808 | result = do_spec_1 (spec, 0, NULL); |
4809 | ||
13e7cedb | 4810 | end_going_arg (); |
6544fbcb RS |
4811 | |
4812 | return result; | |
343f59d9 AM |
4813 | } |
4814 | ||
db36994b | 4815 | |
7816bea0 DJ |
4816 | /* Process the given spec string and add any new options to the end |
4817 | of the switches/n_switches array. */ | |
4818 | ||
4819 | static void | |
1d088dee | 4820 | do_option_spec (const char *name, const char *spec) |
7816bea0 DJ |
4821 | { |
4822 | unsigned int i, value_count, value_len; | |
4823 | const char *p, *q, *value; | |
4824 | char *tmp_spec, *tmp_spec_p; | |
4825 | ||
4826 | if (configure_default_options[0].name == NULL) | |
4827 | return; | |
4828 | ||
4829 | for (i = 0; i < ARRAY_SIZE (configure_default_options); i++) | |
4830 | if (strcmp (configure_default_options[i].name, name) == 0) | |
4831 | break; | |
4832 | if (i == ARRAY_SIZE (configure_default_options)) | |
4833 | return; | |
4834 | ||
4835 | value = configure_default_options[i].value; | |
4836 | value_len = strlen (value); | |
4837 | ||
4838 | /* Compute the size of the final spec. */ | |
4839 | value_count = 0; | |
4840 | p = spec; | |
4841 | while ((p = strstr (p, "%(VALUE)")) != NULL) | |
4842 | { | |
4843 | p ++; | |
4844 | value_count ++; | |
4845 | } | |
4846 | ||
4847 | /* Replace each %(VALUE) by the specified value. */ | |
e1e4cdc4 | 4848 | tmp_spec = (char *) alloca (strlen (spec) + 1 |
7816bea0 DJ |
4849 | + value_count * (value_len - strlen ("%(VALUE)"))); |
4850 | tmp_spec_p = tmp_spec; | |
4851 | q = spec; | |
4852 | while ((p = strstr (q, "%(VALUE)")) != NULL) | |
4853 | { | |
4854 | memcpy (tmp_spec_p, q, p - q); | |
4855 | tmp_spec_p = tmp_spec_p + (p - q); | |
4856 | memcpy (tmp_spec_p, value, value_len); | |
4857 | tmp_spec_p += value_len; | |
4858 | q = p + strlen ("%(VALUE)"); | |
4859 | } | |
4860 | strcpy (tmp_spec_p, q); | |
4861 | ||
4862 | do_self_spec (tmp_spec); | |
4863 | } | |
4864 | ||
db36994b RS |
4865 | /* Process the given spec string and add any new options to the end |
4866 | of the switches/n_switches array. */ | |
4867 | ||
4868 | static void | |
1d088dee | 4869 | do_self_spec (const char *spec) |
db36994b | 4870 | { |
94b90527 JJ |
4871 | int i; |
4872 | ||
db36994b RS |
4873 | do_spec_2 (spec); |
4874 | do_spec_1 (" ", 0, NULL); | |
4875 | ||
94b90527 JJ |
4876 | /* Mark %<S switches processed by do_self_spec to be ignored permanently. |
4877 | do_self_specs adds the replacements to switches array, so it shouldn't | |
4878 | be processed afterwards. */ | |
4879 | for (i = 0; i < n_switches; i++) | |
4880 | if ((switches[i].live_cond & SWITCH_IGNORE)) | |
4881 | switches[i].live_cond |= SWITCH_IGNORE_PERMANENTLY; | |
4882 | ||
9771b263 | 4883 | if (argbuf.length () > 0) |
db36994b | 4884 | { |
efe5e5a0 JM |
4885 | const char **argbuf_copy; |
4886 | struct cl_decoded_option *decoded_options; | |
4887 | struct cl_option_handlers handlers; | |
4888 | unsigned int decoded_options_count; | |
4889 | unsigned int j; | |
db36994b | 4890 | |
efe5e5a0 JM |
4891 | /* Create a copy of argbuf with a dummy argv[0] entry for |
4892 | decode_cmdline_options_to_array. */ | |
5b634ee0 | 4893 | argbuf_copy = XNEWVEC (const char *, |
9771b263 | 4894 | argbuf.length () + 1); |
efe5e5a0 | 4895 | argbuf_copy[0] = ""; |
9771b263 DN |
4896 | memcpy (argbuf_copy + 1, argbuf.address (), |
4897 | argbuf.length () * sizeof (const char *)); | |
db36994b | 4898 | |
9771b263 | 4899 | decode_cmdline_options_to_array (argbuf.length () + 1, |
5b634ee0 | 4900 | argbuf_copy, |
efe5e5a0 JM |
4901 | CL_DRIVER, &decoded_options, |
4902 | &decoded_options_count); | |
fc429b48 | 4903 | free (argbuf_copy); |
2153915d | 4904 | |
efe5e5a0 | 4905 | set_option_handlers (&handlers); |
2153915d | 4906 | |
efe5e5a0 JM |
4907 | for (j = 1; j < decoded_options_count; j++) |
4908 | { | |
4909 | switch (decoded_options[j].opt_index) | |
2153915d | 4910 | { |
efe5e5a0 JM |
4911 | case OPT_SPECIAL_input_file: |
4912 | /* Specs should only generate options, not input | |
4913 | files. */ | |
4914 | if (strcmp (decoded_options[j].arg, "-") != 0) | |
40fecdd6 JM |
4915 | fatal_error (input_location, |
4916 | "switch %qs does not start with %<-%>", | |
efe5e5a0 JM |
4917 | decoded_options[j].arg); |
4918 | else | |
40fecdd6 JM |
4919 | fatal_error (input_location, |
4920 | "spec-generated switch is just %<-%>"); | |
efe5e5a0 | 4921 | break; |
2153915d | 4922 | |
efe5e5a0 JM |
4923 | case OPT_fcompare_debug_second: |
4924 | case OPT_fcompare_debug: | |
4925 | case OPT_fcompare_debug_: | |
4926 | case OPT_o: | |
4927 | /* Avoid duplicate processing of some options from | |
4928 | compare-debug specs; just save them here. */ | |
4929 | save_switch (decoded_options[j].canonical_option[0], | |
4930 | (decoded_options[j].canonical_option_num_elements | |
4931 | - 1), | |
d168aaee | 4932 | &decoded_options[j].canonical_option[1], false, true); |
efe5e5a0 JM |
4933 | break; |
4934 | ||
4935 | default: | |
4936 | read_cmdline_option (&global_options, &global_options_set, | |
a4d8c676 JM |
4937 | decoded_options + j, UNKNOWN_LOCATION, |
4938 | CL_DRIVER, &handlers, global_dc); | |
efe5e5a0 | 4939 | break; |
2153915d | 4940 | } |
db36994b | 4941 | } |
2153915d | 4942 | |
2cb844ce DM |
4943 | free (decoded_options); |
4944 | ||
efe5e5a0 | 4945 | alloc_switch (); |
2153915d | 4946 | switches[n_switches].part1 = 0; |
db36994b RS |
4947 | } |
4948 | } | |
4949 | ||
00dcee0c AM |
4950 | /* Callback for processing %D and %I specs. */ |
4951 | ||
4952 | struct spec_path_info { | |
4953 | const char *option; | |
4954 | const char *append; | |
4955 | size_t append_len; | |
4956 | bool omit_relative; | |
4957 | bool separate_options; | |
4958 | }; | |
4959 | ||
4960 | static void * | |
4961 | spec_path (char *path, void *data) | |
76391e5a | 4962 | { |
e1e4cdc4 | 4963 | struct spec_path_info *info = (struct spec_path_info *) data; |
00dcee0c AM |
4964 | size_t len = 0; |
4965 | char save = 0; | |
76391e5a | 4966 | |
00dcee0c AM |
4967 | if (info->omit_relative && !IS_ABSOLUTE_PATH (path)) |
4968 | return NULL; | |
4969 | ||
4970 | if (info->append_len != 0) | |
76391e5a | 4971 | { |
00dcee0c AM |
4972 | len = strlen (path); |
4973 | memcpy (path + len, info->append, info->append_len + 1); | |
76391e5a PB |
4974 | } |
4975 | ||
00dcee0c AM |
4976 | if (!is_directory (path, true)) |
4977 | return NULL; | |
76391e5a | 4978 | |
00dcee0c AM |
4979 | do_spec_1 (info->option, 1, NULL); |
4980 | if (info->separate_options) | |
4981 | do_spec_1 (" ", 0, NULL); | |
4982 | ||
4983 | if (info->append_len == 0) | |
76391e5a | 4984 | { |
00dcee0c AM |
4985 | len = strlen (path); |
4986 | save = path[len - 1]; | |
4987 | if (IS_DIR_SEPARATOR (path[len - 1])) | |
4988 | path[len - 1] = '\0'; | |
76391e5a | 4989 | } |
00dcee0c AM |
4990 | |
4991 | do_spec_1 (path, 1, NULL); | |
4992 | do_spec_1 (" ", 0, NULL); | |
4993 | ||
4994 | /* Must not damage the original path. */ | |
4995 | if (info->append_len == 0) | |
4996 | path[len - 1] = save; | |
4997 | ||
4998 | return NULL; | |
76391e5a PB |
4999 | } |
5000 | ||
5a691e98 RAE |
5001 | /* Create a temporary FILE with the contents of ARGV. Add @FILE to the |
5002 | argument list. */ | |
5003 | ||
5004 | static void | |
5005 | create_at_file (char **argv) | |
5006 | { | |
5007 | char *temp_file = make_temp_file (""); | |
5008 | char *at_argument = concat ("@", temp_file, NULL); | |
5009 | FILE *f = fopen (temp_file, "w"); | |
5010 | int status; | |
5011 | ||
5012 | if (f == NULL) | |
40fecdd6 | 5013 | fatal_error (input_location, "could not open temporary response file %s", |
2dec80c7 | 5014 | temp_file); |
5a691e98 RAE |
5015 | |
5016 | status = writeargv (argv, f); | |
5017 | ||
5018 | if (status) | |
40fecdd6 JM |
5019 | fatal_error (input_location, |
5020 | "could not write to temporary response file %s", | |
2dec80c7 | 5021 | temp_file); |
5a691e98 RAE |
5022 | |
5023 | status = fclose (f); | |
5024 | ||
5025 | if (EOF == status) | |
40fecdd6 | 5026 | fatal_error (input_location, "could not close temporary response file %s", |
2dec80c7 | 5027 | temp_file); |
5a691e98 RAE |
5028 | |
5029 | store_arg (at_argument, 0, 0); | |
5030 | ||
5031 | record_temp_file (temp_file, !save_temps_flag, !save_temps_flag); | |
5032 | } | |
5033 | ||
5034 | /* True if we should compile INFILE. */ | |
5035 | ||
5036 | static bool | |
5037 | compile_input_file_p (struct infile *infile) | |
5038 | { | |
5039 | if ((!infile->language) || (infile->language[0] != '*')) | |
5040 | if (infile->incompiler == input_file_compiler) | |
5041 | return true; | |
5042 | return false; | |
5043 | } | |
5044 | ||
69d540bd NF |
5045 | /* Process each member of VEC as a spec. */ |
5046 | ||
5047 | static void | |
9771b263 | 5048 | do_specs_vec (vec<char_p> vec) |
69d540bd NF |
5049 | { |
5050 | unsigned ix; | |
5051 | char *opt; | |
5052 | ||
9771b263 | 5053 | FOR_EACH_VEC_ELT (vec, ix, opt) |
69d540bd NF |
5054 | { |
5055 | do_spec_1 (opt, 1, NULL); | |
5056 | /* Make each accumulated option a separate argument. */ | |
5057 | do_spec_1 (" ", 0, NULL); | |
5058 | } | |
5059 | } | |
5060 | ||
ed1f651b RS |
5061 | /* Process the sub-spec SPEC as a portion of a larger spec. |
5062 | This is like processing a whole spec except that we do | |
5063 | not initialize at the beginning and we do not supply a | |
5064 | newline by default at the end. | |
5065 | INSWITCH nonzero means don't process %-sequences in SPEC; | |
5066 | in this case, % is treated as an ordinary character. | |
5067 | This is used while substituting switches. | |
5068 | INSWITCH nonzero also causes SPC not to terminate an argument. | |
5069 | ||
5070 | Value is zero unless a line was finished | |
5071 | and the command on that line reported an error. */ | |
5072 | ||
5073 | static int | |
1d088dee | 5074 | do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part) |
ed1f651b | 5075 | { |
b3694847 SS |
5076 | const char *p = spec; |
5077 | int c; | |
ed1f651b | 5078 | int i; |
3279bba6 | 5079 | int value; |
ed1f651b | 5080 | |
7fcf46f5 JZ |
5081 | /* If it's an empty string argument to a switch, keep it as is. */ |
5082 | if (inswitch && !*p) | |
5083 | arg_going = 1; | |
5084 | ||
ededb2fc | 5085 | while ((c = *p++)) |
ed1f651b RS |
5086 | /* If substituting a switch, treat all chars like letters. |
5087 | Otherwise, NL, SPC, TAB and % are special. */ | |
5088 | switch (inswitch ? 'a' : c) | |
5089 | { | |
5090 | case '\n': | |
13e7cedb | 5091 | end_going_arg (); |
ed1f651b | 5092 | |
9771b263 DN |
5093 | if (argbuf.length () > 0 |
5094 | && !strcmp (argbuf.last (), "|")) | |
ed1f651b | 5095 | { |
ed1f651b RS |
5096 | /* A `|' before the newline means use a pipe here, |
5097 | but only if -pipe was specified. | |
5098 | Otherwise, execute now and don't pass the `|' as an arg. */ | |
4977bab6 | 5099 | if (use_pipes) |
ed1f651b | 5100 | { |
a99bf70c | 5101 | input_from_pipe = 1; |
ed1f651b RS |
5102 | break; |
5103 | } | |
5104 | else | |
9771b263 | 5105 | argbuf.pop (); |
ed1f651b RS |
5106 | } |
5107 | ||
b856c15d RO |
5108 | set_collect_gcc_options (); |
5109 | ||
9771b263 | 5110 | if (argbuf.length () > 0) |
ed1f651b | 5111 | { |
3279bba6 | 5112 | value = execute (); |
ed1f651b RS |
5113 | if (value) |
5114 | return value; | |
5115 | } | |
5116 | /* Reinitialize for a new command, and for a new argument. */ | |
5117 | clear_args (); | |
5118 | arg_going = 0; | |
5119 | delete_this_arg = 0; | |
5120 | this_is_output_file = 0; | |
5121 | this_is_library_file = 0; | |
3beb864c | 5122 | this_is_linker_script = 0; |
a99bf70c | 5123 | input_from_pipe = 0; |
ed1f651b RS |
5124 | break; |
5125 | ||
5126 | case '|': | |
13e7cedb | 5127 | end_going_arg (); |
ed1f651b RS |
5128 | |
5129 | /* Use pipe */ | |
5130 | obstack_1grow (&obstack, c); | |
5131 | arg_going = 1; | |
5132 | break; | |
5133 | ||
5134 | case '\t': | |
5135 | case ' ': | |
13e7cedb DH |
5136 | end_going_arg (); |
5137 | ||
ed1f651b | 5138 | /* Reinitialize for a new argument. */ |
ed1f651b RS |
5139 | delete_this_arg = 0; |
5140 | this_is_output_file = 0; | |
5141 | this_is_library_file = 0; | |
3beb864c | 5142 | this_is_linker_script = 0; |
ed1f651b RS |
5143 | break; |
5144 | ||
5145 | case '%': | |
5146 | switch (c = *p++) | |
5147 | { | |
5148 | case 0: | |
40fecdd6 | 5149 | fatal_error (input_location, "spec %qs invalid", spec); |
ed1f651b RS |
5150 | |
5151 | case 'b': | |
14fdc613 MM |
5152 | if (save_temps_length) |
5153 | obstack_grow (&obstack, save_temps_prefix, save_temps_length); | |
5154 | else | |
5155 | obstack_grow (&obstack, input_basename, basename_length); | |
2153915d AO |
5156 | if (compare_debug < 0) |
5157 | obstack_grow (&obstack, ".gk", 3); | |
ed1f651b RS |
5158 | arg_going = 1; |
5159 | break; | |
5160 | ||
ea414c97 | 5161 | case 'B': |
14fdc613 MM |
5162 | if (save_temps_length) |
5163 | obstack_grow (&obstack, save_temps_prefix, save_temps_length); | |
5164 | else | |
5165 | obstack_grow (&obstack, input_basename, suffixed_basename_length); | |
2153915d AO |
5166 | if (compare_debug < 0) |
5167 | obstack_grow (&obstack, ".gk", 3); | |
ea414c97 ZW |
5168 | arg_going = 1; |
5169 | break; | |
5170 | ||
ed1f651b RS |
5171 | case 'd': |
5172 | delete_this_arg = 2; | |
5173 | break; | |
5174 | ||
5175 | /* Dump out the directories specified with LIBRARY_PATH, | |
004fd4d5 RS |
5176 | followed by the absolute directories |
5177 | that we search for startfiles. */ | |
ed1f651b | 5178 | case 'D': |
8cacec76 | 5179 | { |
00dcee0c | 5180 | struct spec_path_info info; |
59014d0a | 5181 | |
00dcee0c AM |
5182 | info.option = "-L"; |
5183 | info.append_len = 0; | |
76391e5a | 5184 | #ifdef RELATIVE_PREFIX_NOT_LINKDIR |
00dcee0c AM |
5185 | /* Used on systems which record the specified -L dirs |
5186 | and use them to search for dynamic linking. | |
5187 | Relative directories always come from -B, | |
5188 | and it is better not to use them for searching | |
5189 | at run time. In particular, stage1 loses. */ | |
5190 | info.omit_relative = true; | |
76391e5a | 5191 | #else |
00dcee0c | 5192 | info.omit_relative = false; |
004fd4d5 | 5193 | #endif |
00dcee0c AM |
5194 | info.separate_options = false; |
5195 | ||
5196 | for_each_path (&startfile_prefixes, true, 0, spec_path, &info); | |
8cacec76 | 5197 | } |
ed1f651b RS |
5198 | break; |
5199 | ||
5200 | case 'e': | |
ab87f8c8 | 5201 | /* %efoo means report an error with `foo' as error message |
ed1f651b RS |
5202 | and don't execute any more commands for this file. */ |
5203 | { | |
878f32c3 | 5204 | const char *q = p; |
ed1f651b | 5205 | char *buf; |
d25a45d4 KH |
5206 | while (*p != 0 && *p != '\n') |
5207 | p++; | |
e1e4cdc4 | 5208 | buf = (char *) alloca (p - q + 1); |
ed1f651b RS |
5209 | strncpy (buf, q, p - q); |
5210 | buf[p - q] = 0; | |
5bc69b92 | 5211 | error ("%s", _(buf)); |
ed1f651b RS |
5212 | return -1; |
5213 | } | |
5214 | break; | |
4a88a060 | 5215 | case 'n': |
09da1532 | 5216 | /* %nfoo means report a notice with `foo' on stderr. */ |
4a88a060 JH |
5217 | { |
5218 | const char *q = p; | |
5219 | char *buf; | |
5220 | while (*p != 0 && *p != '\n') | |
5221 | p++; | |
e1e4cdc4 | 5222 | buf = (char *) alloca (p - q + 1); |
4a88a060 JH |
5223 | strncpy (buf, q, p - q); |
5224 | buf[p - q] = 0; | |
2dec80c7 | 5225 | inform (0, "%s", _(buf)); |
4a88a060 JH |
5226 | if (*p) |
5227 | p++; | |
5228 | } | |
5229 | break; | |
ed1f651b | 5230 | |
d25a45d4 KH |
5231 | case 'j': |
5232 | { | |
5233 | struct stat st; | |
5234 | ||
4977bab6 ZW |
5235 | /* If save_temps_flag is off, and the HOST_BIT_BUCKET is |
5236 | defined, and it is not a directory, and it is | |
5237 | writable, use it. Otherwise, treat this like any | |
5238 | other temporary file. */ | |
d25a45d4 KH |
5239 | |
5240 | if ((!save_temps_flag) | |
5241 | && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode)) | |
5242 | && (access (HOST_BIT_BUCKET, W_OK) == 0)) | |
5243 | { | |
5244 | obstack_grow (&obstack, HOST_BIT_BUCKET, | |
5245 | strlen (HOST_BIT_BUCKET)); | |
5246 | delete_this_arg = 0; | |
5247 | arg_going = 1; | |
5248 | break; | |
5249 | } | |
5250 | } | |
4977bab6 ZW |
5251 | goto create_temp_file; |
5252 | case '|': | |
5253 | if (use_pipes) | |
5254 | { | |
5255 | obstack_1grow (&obstack, '-'); | |
5256 | delete_this_arg = 0; | |
5257 | arg_going = 1; | |
5258 | ||
5259 | /* consume suffix */ | |
a92dd235 | 5260 | while (*p == '.' || ISALNUM ((unsigned char) *p)) |
4977bab6 ZW |
5261 | p++; |
5262 | if (p[0] == '%' && p[1] == 'O') | |
5263 | p += 2; | |
1d088dee | 5264 | |
4977bab6 ZW |
5265 | break; |
5266 | } | |
5267 | goto create_temp_file; | |
5268 | case 'm': | |
5269 | if (use_pipes) | |
5270 | { | |
5271 | /* consume suffix */ | |
a92dd235 | 5272 | while (*p == '.' || ISALNUM ((unsigned char) *p)) |
4977bab6 ZW |
5273 | p++; |
5274 | if (p[0] == '%' && p[1] == 'O') | |
5275 | p += 2; | |
1d088dee | 5276 | |
4977bab6 ZW |
5277 | break; |
5278 | } | |
5279 | goto create_temp_file; | |
ed1f651b | 5280 | case 'g': |
d887e808 | 5281 | case 'u': |
4401b31c | 5282 | case 'U': |
4977bab6 | 5283 | create_temp_file: |
ed1f651b | 5284 | { |
fb266030 | 5285 | struct temp_name *t; |
dd75c292 | 5286 | int suffix_length; |
878f32c3 | 5287 | const char *suffix = p; |
a1d9074c | 5288 | char *saved_suffix = NULL; |
dd75c292 | 5289 | |
a92dd235 | 5290 | while (*p == '.' || ISALNUM ((unsigned char) *p)) |
a1d9074c TT |
5291 | p++; |
5292 | suffix_length = p - suffix; | |
dd75c292 CB |
5293 | if (p[0] == '%' && p[1] == 'O') |
5294 | { | |
cbc54665 | 5295 | p += 2; |
dd75c292 | 5296 | /* We don't support extra suffix characters after %O. */ |
a92dd235 | 5297 | if (*p == '.' || ISALNUM ((unsigned char) *p)) |
40fecdd6 JM |
5298 | fatal_error (input_location, |
5299 | "spec %qs has invalid %<%%0%c%>", spec, *p); | |
a1d9074c | 5300 | if (suffix_length == 0) |
45936a85 | 5301 | suffix = TARGET_OBJECT_SUFFIX; |
a1d9074c TT |
5302 | else |
5303 | { | |
5304 | saved_suffix | |
5ed6ace5 | 5305 | = XNEWVEC (char, suffix_length |
e3cb8f05 | 5306 | + strlen (TARGET_OBJECT_SUFFIX) + 1); |
a1d9074c TT |
5307 | strncpy (saved_suffix, suffix, suffix_length); |
5308 | strcpy (saved_suffix + suffix_length, | |
45936a85 | 5309 | TARGET_OBJECT_SUFFIX); |
a1d9074c | 5310 | } |
45936a85 | 5311 | suffix_length += strlen (TARGET_OBJECT_SUFFIX); |
dd75c292 | 5312 | } |
589005ff | 5313 | |
2153915d AO |
5314 | if (compare_debug < 0) |
5315 | { | |
5316 | suffix = concat (".gk", suffix, NULL); | |
5317 | suffix_length += 3; | |
5318 | } | |
5319 | ||
14fdc613 MM |
5320 | /* If -save-temps=obj and -o were specified, use that for the |
5321 | temp file. */ | |
5322 | if (save_temps_length) | |
5323 | { | |
5324 | char *tmp; | |
5325 | temp_filename_length | |
5326 | = save_temps_length + suffix_length + 1; | |
5327 | tmp = (char *) alloca (temp_filename_length); | |
5328 | memcpy (tmp, save_temps_prefix, save_temps_length); | |
5329 | memcpy (tmp + save_temps_length, suffix, suffix_length); | |
5330 | tmp[save_temps_length + suffix_length] = '\0'; | |
fc429b48 TB |
5331 | temp_filename = save_string (tmp, save_temps_length |
5332 | + suffix_length); | |
14fdc613 MM |
5333 | obstack_grow (&obstack, temp_filename, |
5334 | temp_filename_length); | |
5335 | arg_going = 1; | |
5336 | delete_this_arg = 0; | |
5337 | break; | |
5338 | } | |
5339 | ||
6afbc885 | 5340 | /* If the gcc_input_filename has the same suffix specified |
99f78cdd IR |
5341 | for the %g, %u, or %U, and -save-temps is specified, |
5342 | we could end up using that file as an intermediate | |
5343 | thus clobbering the user's source file (.e.g., | |
5344 | gcc -save-temps foo.s would clobber foo.s with the | |
5345 | output of cpp0). So check for this condition and | |
5346 | generate a temp file as the intermediate. */ | |
589005ff | 5347 | |
99f78cdd IR |
5348 | if (save_temps_flag) |
5349 | { | |
6ea2b70d | 5350 | char *tmp; |
14fdc613 MM |
5351 | temp_filename_length = basename_length + suffix_length + 1; |
5352 | tmp = (char *) alloca (temp_filename_length); | |
5353 | memcpy (tmp, input_basename, basename_length); | |
5354 | memcpy (tmp + basename_length, suffix, suffix_length); | |
5355 | tmp[basename_length + suffix_length] = '\0'; | |
6ea2b70d | 5356 | temp_filename = tmp; |
14fdc613 | 5357 | |
ba78087b | 5358 | if (filename_cmp (temp_filename, gcc_input_filename) != 0) |
99f78cdd | 5359 | { |
a9024779 | 5360 | #ifndef HOST_LACKS_INODE_NUMBERS |
1d088dee | 5361 | struct stat st_temp; |
589005ff | 5362 | |
1d088dee AJ |
5363 | /* Note, set_input() resets input_stat_set to 0. */ |
5364 | if (input_stat_set == 0) | |
5365 | { | |
6afbc885 JM |
5366 | input_stat_set = stat (gcc_input_filename, |
5367 | &input_stat); | |
1d088dee AJ |
5368 | if (input_stat_set >= 0) |
5369 | input_stat_set = 1; | |
5370 | } | |
589005ff | 5371 | |
6afbc885 | 5372 | /* If we have the stat for the gcc_input_filename |
1d088dee AJ |
5373 | and we can do the stat for the temp_filename |
5374 | then the they could still refer to the same | |
5375 | file if st_dev/st_ino's are the same. */ | |
99f78cdd IR |
5376 | if (input_stat_set != 1 |
5377 | || stat (temp_filename, &st_temp) < 0 | |
5378 | || input_stat.st_dev != st_temp.st_dev | |
5379 | || input_stat.st_ino != st_temp.st_ino) | |
a9024779 DS |
5380 | #else |
5381 | /* Just compare canonical pathnames. */ | |
6afbc885 | 5382 | char* input_realname = lrealpath (gcc_input_filename); |
a9024779 | 5383 | char* temp_realname = lrealpath (temp_filename); |
ba78087b | 5384 | bool files_differ = filename_cmp (input_realname, temp_realname); |
a9024779 DS |
5385 | free (input_realname); |
5386 | free (temp_realname); | |
7904f95f | 5387 | if (files_differ) |
a9024779 | 5388 | #endif |
589005ff | 5389 | { |
99f78cdd IR |
5390 | temp_filename = save_string (temp_filename, |
5391 | temp_filename_length + 1); | |
5392 | obstack_grow (&obstack, temp_filename, | |
1d088dee | 5393 | temp_filename_length); |
99f78cdd | 5394 | arg_going = 1; |
d2dff06b | 5395 | delete_this_arg = 0; |
99f78cdd IR |
5396 | break; |
5397 | } | |
5398 | } | |
5399 | } | |
fb266030 TW |
5400 | |
5401 | /* See if we already have an association of %g/%u/%U and | |
5402 | suffix. */ | |
5403 | for (t = temp_names; t; t = t->next) | |
dd75c292 CB |
5404 | if (t->length == suffix_length |
5405 | && strncmp (t->suffix, suffix, suffix_length) == 0 | |
95456d43 | 5406 | && t->unique == (c == 'u' || c == 'U' || c == 'j')) |
fb266030 TW |
5407 | break; |
5408 | ||
2297fdf1 TT |
5409 | /* Make a new association if needed. %u and %j |
5410 | require one. */ | |
49009afd | 5411 | if (t == 0 || c == 'u' || c == 'j') |
fb266030 TW |
5412 | { |
5413 | if (t == 0) | |
5414 | { | |
e1e4cdc4 | 5415 | t = XNEW (struct temp_name); |
fb266030 TW |
5416 | t->next = temp_names; |
5417 | temp_names = t; | |
5418 | } | |
dd75c292 | 5419 | t->length = suffix_length; |
2297fdf1 TT |
5420 | if (saved_suffix) |
5421 | { | |
5422 | t->suffix = saved_suffix; | |
5423 | saved_suffix = NULL; | |
5424 | } | |
5425 | else | |
5426 | t->suffix = save_string (suffix, suffix_length); | |
95456d43 | 5427 | t->unique = (c == 'u' || c == 'U' || c == 'j'); |
dd75c292 | 5428 | temp_filename = make_temp_file (t->suffix); |
6aa62cff | 5429 | temp_filename_length = strlen (temp_filename); |
fb266030 TW |
5430 | t->filename = temp_filename; |
5431 | t->filename_length = temp_filename_length; | |
5432 | } | |
5433 | ||
04695783 | 5434 | free (saved_suffix); |
a1d9074c | 5435 | |
fb266030 | 5436 | obstack_grow (&obstack, t->filename, t->filename_length); |
b9490a6e | 5437 | delete_this_arg = 1; |
ed1f651b RS |
5438 | } |
5439 | arg_going = 1; | |
5440 | break; | |
5441 | ||
5442 | case 'i': | |
d1bd0ded GK |
5443 | if (combine_inputs) |
5444 | { | |
5a691e98 RAE |
5445 | if (at_file_supplied) |
5446 | { | |
5447 | /* We are going to expand `%i' to `@FILE', where FILE | |
5448 | is a newly-created temporary filename. The filenames | |
5449 | that would usually be expanded in place of %o will be | |
5450 | written to the temporary file. */ | |
5451 | char **argv; | |
5452 | int n_files = 0; | |
5453 | int j; | |
5454 | ||
5455 | for (i = 0; i < n_infiles; i++) | |
5456 | if (compile_input_file_p (&infiles[i])) | |
5457 | n_files++; | |
5458 | ||
5459 | argv = (char **) alloca (sizeof (char *) * (n_files + 1)); | |
5460 | ||
5461 | /* Copy the strings over. */ | |
5462 | for (i = 0, j = 0; i < n_infiles; i++) | |
5463 | if (compile_input_file_p (&infiles[i])) | |
5464 | { | |
5465 | argv[j] = CONST_CAST (char *, infiles[i].name); | |
5466 | infiles[i].compiled = true; | |
5467 | j++; | |
5468 | } | |
5469 | argv[j] = NULL; | |
5470 | ||
5471 | create_at_file (argv); | |
5472 | } | |
5473 | else | |
5474 | for (i = 0; (int) i < n_infiles; i++) | |
5475 | if (compile_input_file_p (&infiles[i])) | |
0855eab7 CT |
5476 | { |
5477 | store_arg (infiles[i].name, 0, 0); | |
5478 | infiles[i].compiled = true; | |
5479 | } | |
d1bd0ded GK |
5480 | } |
5481 | else | |
5482 | { | |
6afbc885 JM |
5483 | obstack_grow (&obstack, gcc_input_filename, |
5484 | input_filename_length); | |
d1bd0ded GK |
5485 | arg_going = 1; |
5486 | } | |
ed1f651b RS |
5487 | break; |
5488 | ||
8eebb258 | 5489 | case 'I': |
2d879387 | 5490 | { |
00dcee0c | 5491 | struct spec_path_info info; |
2d879387 | 5492 | |
2b6dd222 JM |
5493 | if (multilib_dir) |
5494 | { | |
5495 | do_spec_1 ("-imultilib", 1, NULL); | |
5496 | /* Make this a separate argument. */ | |
5497 | do_spec_1 (" ", 0, NULL); | |
5498 | do_spec_1 (multilib_dir, 1, NULL); | |
5499 | do_spec_1 (" ", 0, NULL); | |
5500 | } | |
5501 | ||
e0cdc09f MK |
5502 | if (multiarch_dir) |
5503 | { | |
5504 | do_spec_1 ("-imultiarch", 1, NULL); | |
5505 | /* Make this a separate argument. */ | |
5506 | do_spec_1 (" ", 0, NULL); | |
5507 | do_spec_1 (multiarch_dir, 1, NULL); | |
5508 | do_spec_1 (" ", 0, NULL); | |
5509 | } | |
5510 | ||
2d879387 JW |
5511 | if (gcc_exec_prefix) |
5512 | { | |
6496a589 | 5513 | do_spec_1 ("-iprefix", 1, NULL); |
2d879387 | 5514 | /* Make this a separate argument. */ |
6496a589 KG |
5515 | do_spec_1 (" ", 0, NULL); |
5516 | do_spec_1 (gcc_exec_prefix, 1, NULL); | |
5517 | do_spec_1 (" ", 0, NULL); | |
2d879387 JW |
5518 | } |
5519 | ||
e7f13528 GP |
5520 | if (target_system_root_changed || |
5521 | (target_system_root && target_sysroot_hdrs_suffix)) | |
047d636f DJ |
5522 | { |
5523 | do_spec_1 ("-isysroot", 1, NULL); | |
5524 | /* Make this a separate argument. */ | |
5525 | do_spec_1 (" ", 0, NULL); | |
5526 | do_spec_1 (target_system_root, 1, NULL); | |
e7f13528 GP |
5527 | if (target_sysroot_hdrs_suffix) |
5528 | do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL); | |
047d636f DJ |
5529 | do_spec_1 (" ", 0, NULL); |
5530 | } | |
5531 | ||
00dcee0c AM |
5532 | info.option = "-isystem"; |
5533 | info.append = "include"; | |
5534 | info.append_len = strlen (info.append); | |
5535 | info.omit_relative = false; | |
5536 | info.separate_options = true; | |
5537 | ||
5538 | for_each_path (&include_prefixes, false, info.append_len, | |
5539 | spec_path, &info); | |
f686ec05 JM |
5540 | |
5541 | info.append = "include-fixed"; | |
14da6073 JM |
5542 | if (*sysroot_hdrs_suffix_spec) |
5543 | info.append = concat (info.append, dir_separator_str, | |
5544 | multilib_dir, NULL); | |
f686ec05 JM |
5545 | info.append_len = strlen (info.append); |
5546 | for_each_path (&include_prefixes, false, info.append_len, | |
5547 | spec_path, &info); | |
2d879387 | 5548 | } |
8eebb258 RS |
5549 | break; |
5550 | ||
ed1f651b | 5551 | case 'o': |
15c5edb9 TT |
5552 | { |
5553 | int max = n_infiles; | |
15c5edb9 | 5554 | max += lang_specific_extra_outfiles; |
08dc830e | 5555 | |
2091ff66 NF |
5556 | if (HAVE_GNU_LD && at_file_supplied) |
5557 | { | |
5558 | /* We are going to expand `%o' to `@FILE', where FILE | |
5559 | is a newly-created temporary filename. The filenames | |
5560 | that would usually be expanded in place of %o will be | |
5561 | written to the temporary file. */ | |
5562 | ||
2091ff66 | 5563 | char **argv; |
5a691e98 | 5564 | int n_files, j; |
2091ff66 NF |
5565 | |
5566 | /* Convert OUTFILES into a form suitable for writeargv. */ | |
5567 | ||
5568 | /* Determine how many are non-NULL. */ | |
5569 | for (n_files = 0, i = 0; i < max; i++) | |
5570 | n_files += outfiles[i] != NULL; | |
5571 | ||
e1e4cdc4 | 5572 | argv = (char **) alloca (sizeof (char *) * (n_files + 1)); |
2091ff66 NF |
5573 | |
5574 | /* Copy the strings over. */ | |
5575 | for (i = 0, j = 0; i < max; i++) | |
5576 | if (outfiles[i]) | |
5577 | { | |
b1d5455a | 5578 | argv[j] = CONST_CAST (char *, outfiles[i]); |
2091ff66 NF |
5579 | j++; |
5580 | } | |
5581 | argv[j] = NULL; | |
5582 | ||
5a691e98 | 5583 | create_at_file (argv); |
2091ff66 NF |
5584 | } |
5585 | else | |
5586 | for (i = 0; i < max; i++) | |
5587 | if (outfiles[i]) | |
5588 | store_arg (outfiles[i], 0, 0); | |
15c5edb9 TT |
5589 | break; |
5590 | } | |
ed1f651b | 5591 | |
ed7dae04 | 5592 | case 'O': |
45936a85 | 5593 | obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX)); |
ed7dae04 RK |
5594 | arg_going = 1; |
5595 | break; | |
5596 | ||
ed1f651b RS |
5597 | case 's': |
5598 | this_is_library_file = 1; | |
5599 | break; | |
5600 | ||
3beb864c NC |
5601 | case 'T': |
5602 | this_is_linker_script = 1; | |
5603 | break; | |
5604 | ||
17211ab5 GK |
5605 | case 'V': |
5606 | outfiles[input_file_number] = NULL; | |
5607 | break; | |
5608 | ||
ed1f651b RS |
5609 | case 'w': |
5610 | this_is_output_file = 1; | |
5611 | break; | |
5612 | ||
5613 | case 'W': | |
5614 | { | |
9771b263 | 5615 | unsigned int cur_index = argbuf.length (); |
ed1f651b RS |
5616 | /* Handle the {...} following the %W. */ |
5617 | if (*p != '{') | |
40fecdd6 JM |
5618 | fatal_error (input_location, |
5619 | "spec %qs has invalid %<%%W%c%>", spec, *p); | |
ed1f651b RS |
5620 | p = handle_braces (p + 1); |
5621 | if (p == 0) | |
5622 | return -1; | |
13e7cedb | 5623 | end_going_arg (); |
ed1f651b RS |
5624 | /* If any args were output, mark the last one for deletion |
5625 | on failure. */ | |
9771b263 DN |
5626 | if (argbuf.length () != cur_index) |
5627 | record_temp_file (argbuf.last (), 0, 1); | |
ed1f651b RS |
5628 | break; |
5629 | } | |
5630 | ||
5631 | /* %x{OPTION} records OPTION for %X to output. */ | |
5632 | case 'x': | |
5633 | { | |
878f32c3 | 5634 | const char *p1 = p; |
ed1f651b | 5635 | char *string; |
69d540bd NF |
5636 | char *opt; |
5637 | unsigned ix; | |
ed1f651b RS |
5638 | |
5639 | /* Skip past the option value and make a copy. */ | |
5640 | if (*p != '{') | |
40fecdd6 JM |
5641 | fatal_error (input_location, |
5642 | "spec %qs has invalid %<%%x%c%>", spec, *p); | |
ed1f651b RS |
5643 | while (*p++ != '}') |
5644 | ; | |
5645 | string = save_string (p1 + 1, p - p1 - 2); | |
5646 | ||
5647 | /* See if we already recorded this option. */ | |
9771b263 | 5648 | FOR_EACH_VEC_ELT (linker_options, ix, opt) |
69d540bd | 5649 | if (! strcmp (string, opt)) |
ed1f651b RS |
5650 | { |
5651 | free (string); | |
5652 | return 0; | |
5653 | } | |
5654 | ||
5655 | /* This option is new; add it. */ | |
b8468bc7 | 5656 | add_linker_option (string, strlen (string)); |
fc429b48 | 5657 | free (string); |
ed1f651b RS |
5658 | } |
5659 | break; | |
5660 | ||
368dfd3a | 5661 | /* Dump out the options accumulated previously using %x. */ |
ed1f651b | 5662 | case 'X': |
69d540bd | 5663 | do_specs_vec (linker_options); |
ed1f651b RS |
5664 | break; |
5665 | ||
c9ebacb8 RS |
5666 | /* Dump out the options accumulated previously using -Wa,. */ |
5667 | case 'Y': | |
69d540bd | 5668 | do_specs_vec (assembler_options); |
c9ebacb8 RS |
5669 | break; |
5670 | ||
57cb9b60 JW |
5671 | /* Dump out the options accumulated previously using -Wp,. */ |
5672 | case 'Z': | |
69d540bd | 5673 | do_specs_vec (preprocessor_options); |
57cb9b60 JW |
5674 | break; |
5675 | ||
ed1f651b RS |
5676 | /* Here are digits and numbers that just process |
5677 | a certain constant string as a spec. */ | |
5678 | ||
5679 | case '1': | |
6496a589 | 5680 | value = do_spec_1 (cc1_spec, 0, NULL); |
3279bba6 RS |
5681 | if (value != 0) |
5682 | return value; | |
ed1f651b RS |
5683 | break; |
5684 | ||
5685 | case '2': | |
6496a589 | 5686 | value = do_spec_1 (cc1plus_spec, 0, NULL); |
3279bba6 RS |
5687 | if (value != 0) |
5688 | return value; | |
ed1f651b RS |
5689 | break; |
5690 | ||
5691 | case 'a': | |
6496a589 | 5692 | value = do_spec_1 (asm_spec, 0, NULL); |
3279bba6 RS |
5693 | if (value != 0) |
5694 | return value; | |
ed1f651b RS |
5695 | break; |
5696 | ||
5697 | case 'A': | |
6496a589 | 5698 | value = do_spec_1 (asm_final_spec, 0, NULL); |
3279bba6 RS |
5699 | if (value != 0) |
5700 | return value; | |
ed1f651b RS |
5701 | break; |
5702 | ||
ed1f651b | 5703 | case 'C': |
a9374841 | 5704 | { |
83182544 | 5705 | const char *const spec |
589005ff KH |
5706 | = (input_file_compiler->cpp_spec |
5707 | ? input_file_compiler->cpp_spec | |
a9374841 | 5708 | : cpp_spec); |
6496a589 | 5709 | value = do_spec_1 (spec, 0, NULL); |
a9374841 MM |
5710 | if (value != 0) |
5711 | return value; | |
5712 | } | |
ed1f651b RS |
5713 | break; |
5714 | ||
5715 | case 'E': | |
6496a589 | 5716 | value = do_spec_1 (endfile_spec, 0, NULL); |
3279bba6 RS |
5717 | if (value != 0) |
5718 | return value; | |
ed1f651b RS |
5719 | break; |
5720 | ||
5721 | case 'l': | |
6496a589 | 5722 | value = do_spec_1 (link_spec, 0, NULL); |
3279bba6 RS |
5723 | if (value != 0) |
5724 | return value; | |
ed1f651b RS |
5725 | break; |
5726 | ||
5727 | case 'L': | |
6496a589 | 5728 | value = do_spec_1 (lib_spec, 0, NULL); |
3279bba6 RS |
5729 | if (value != 0) |
5730 | return value; | |
ed1f651b RS |
5731 | break; |
5732 | ||
3cd50158 SD |
5733 | case 'M': |
5734 | if (multilib_os_dir == NULL) | |
5735 | obstack_1grow (&obstack, '.'); | |
5736 | else | |
5737 | obstack_grow (&obstack, multilib_os_dir, | |
5738 | strlen (multilib_os_dir)); | |
5739 | break; | |
5740 | ||
68d69835 | 5741 | case 'G': |
6496a589 | 5742 | value = do_spec_1 (libgcc_spec, 0, NULL); |
68d69835 JM |
5743 | if (value != 0) |
5744 | return value; | |
5745 | break; | |
5746 | ||
4977bab6 ZW |
5747 | case 'R': |
5748 | /* We assume there is a directory | |
5749 | separator at the end of this string. */ | |
5750 | if (target_system_root) | |
1d088dee AJ |
5751 | { |
5752 | obstack_grow (&obstack, target_system_root, | |
e7f13528 GP |
5753 | strlen (target_system_root)); |
5754 | if (target_sysroot_suffix) | |
1d088dee | 5755 | obstack_grow (&obstack, target_sysroot_suffix, |
e7f13528 GP |
5756 | strlen (target_sysroot_suffix)); |
5757 | } | |
4977bab6 ZW |
5758 | break; |
5759 | ||
ed1f651b | 5760 | case 'S': |
6496a589 | 5761 | value = do_spec_1 (startfile_spec, 0, NULL); |
3279bba6 RS |
5762 | if (value != 0) |
5763 | return value; | |
ed1f651b RS |
5764 | break; |
5765 | ||
5766 | /* Here we define characters other than letters and digits. */ | |
5767 | ||
5768 | case '{': | |
5769 | p = handle_braces (p); | |
5770 | if (p == 0) | |
5771 | return -1; | |
5772 | break; | |
5773 | ||
f3226a90 | 5774 | case ':': |
de5a5fa1 | 5775 | p = handle_spec_function (p, NULL); |
f3226a90 JT |
5776 | if (p == 0) |
5777 | return -1; | |
5778 | break; | |
5779 | ||
ed1f651b RS |
5780 | case '%': |
5781 | obstack_1grow (&obstack, '%'); | |
5782 | break; | |
5783 | ||
589005ff KH |
5784 | case '.': |
5785 | { | |
5786 | unsigned len = 0; | |
11972f66 | 5787 | |
589005ff KH |
5788 | while (p[len] && p[len] != ' ' && p[len] != '%') |
5789 | len++; | |
5790 | suffix_subst = save_string (p - 1, len + 1); | |
5791 | p += len; | |
5792 | } | |
11972f66 | 5793 | break; |
589005ff | 5794 | |
4977bab6 ZW |
5795 | /* Henceforth ignore the option(s) matching the pattern |
5796 | after the %<. */ | |
5797 | case '<': | |
96f5b137 | 5798 | case '>': |
4977bab6 ZW |
5799 | { |
5800 | unsigned len = 0; | |
5801 | int have_wildcard = 0; | |
5802 | int i; | |
96f5b137 L |
5803 | int switch_option; |
5804 | ||
5805 | if (c == '>') | |
5806 | switch_option = SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC; | |
5807 | else | |
5808 | switch_option = SWITCH_IGNORE; | |
4977bab6 ZW |
5809 | |
5810 | while (p[len] && p[len] != ' ' && p[len] != '\t') | |
5811 | len++; | |
5812 | ||
5813 | if (p[len-1] == '*') | |
5814 | have_wildcard = 1; | |
5815 | ||
5816 | for (i = 0; i < n_switches; i++) | |
5817 | if (!strncmp (switches[i].part1, p, len - have_wildcard) | |
5818 | && (have_wildcard || switches[i].part1[len] == '\0')) | |
5819 | { | |
96f5b137 | 5820 | switches[i].live_cond |= switch_option; |
d168aaee CB |
5821 | /* User switch be validated from validate_all_switches. |
5822 | when the definition is seen from the spec file. | |
5823 | If not defined anywhere, will be rejected. */ | |
5824 | if (switches[i].known) | |
5825 | switches[i].validated = true; | |
4977bab6 ZW |
5826 | } |
5827 | ||
5828 | p += len; | |
5829 | } | |
5830 | break; | |
5831 | ||
ed1f651b | 5832 | case '*': |
3ac63d94 NC |
5833 | if (soft_matched_part) |
5834 | { | |
7fcf46f5 JZ |
5835 | if (soft_matched_part[0]) |
5836 | do_spec_1 (soft_matched_part, 1, NULL); | |
25990163 NC |
5837 | /* Only insert a space after the substitution if it is at the |
5838 | end of the current sequence. So if: | |
5839 | ||
5840 | "%{foo=*:bar%*}%{foo=*:one%*two}" | |
5841 | ||
5842 | matches -foo=hello then it will produce: | |
5843 | ||
5844 | barhello onehellotwo | |
5845 | */ | |
5846 | if (*p == 0 || *p == '}') | |
5847 | do_spec_1 (" ", 0, NULL); | |
3ac63d94 NC |
5848 | } |
5849 | else | |
5850 | /* Catch the case where a spec string contains something like | |
454ff5cb | 5851 | '%{foo:%*}'. i.e. there is no * in the pattern on the left |
3ac63d94 | 5852 | hand side of the :. */ |
bdc6b402 | 5853 | error ("spec failure: %<%%*%> has not been initialized by pattern match"); |
ed1f651b RS |
5854 | break; |
5855 | ||
5856 | /* Process a string found as the value of a spec given by name. | |
5857 | This feature allows individual machine descriptions | |
3ce9f090 | 5858 | to add and use their own specs. */ |
ed1f651b | 5859 | case '(': |
ed1f651b | 5860 | { |
878f32c3 | 5861 | const char *name = p; |
ed1f651b RS |
5862 | struct spec_list *sl; |
5863 | int len; | |
5864 | ||
5865 | /* The string after the S/P is the name of a spec that is to be | |
0f41302f | 5866 | processed. */ |
3ce9f090 | 5867 | while (*p && *p != ')') |
ed1f651b RS |
5868 | p++; |
5869 | ||
3ac63d94 | 5870 | /* See if it's in the list. */ |
ed1f651b | 5871 | for (len = p - name, sl = specs; sl; sl = sl->next) |
79aff5ac | 5872 | if (sl->name_len == len && !strncmp (sl->name, name, len)) |
ed1f651b | 5873 | { |
79aff5ac | 5874 | name = *(sl->ptr_spec); |
20df0482 | 5875 | #ifdef DEBUG_SPECS |
3ce9f090 JM |
5876 | fnotice (stderr, "Processing spec (%s), which is '%s'\n", |
5877 | sl->name, name); | |
20df0482 | 5878 | #endif |
ed1f651b RS |
5879 | break; |
5880 | } | |
5881 | ||
5882 | if (sl) | |
5883 | { | |
3ce9f090 JM |
5884 | value = do_spec_1 (name, 0, NULL); |
5885 | if (value != 0) | |
5886 | return value; | |
ed1f651b | 5887 | } |
b3865ca9 | 5888 | |
3ce9f090 | 5889 | /* Discard the closing paren. */ |
b3865ca9 RS |
5890 | if (*p) |
5891 | p++; | |
ed1f651b RS |
5892 | } |
5893 | break; | |
5894 | ||
5895 | default: | |
bdc6b402 | 5896 | error ("spec failure: unrecognized spec option %qc", c); |
3ac63d94 | 5897 | break; |
ed1f651b RS |
5898 | } |
5899 | break; | |
5900 | ||
5901 | case '\\': | |
5902 | /* Backslash: treat next character as ordinary. */ | |
5903 | c = *p++; | |
5904 | ||
938d968e | 5905 | /* Fall through. */ |
ed1f651b RS |
5906 | default: |
5907 | /* Ordinary character: put it into the current argument. */ | |
5908 | obstack_1grow (&obstack, c); | |
5909 | arg_going = 1; | |
5910 | } | |
5911 | ||
f3226a90 JT |
5912 | /* End of string. If we are processing a spec function, we need to |
5913 | end any pending argument. */ | |
13e7cedb DH |
5914 | if (processing_spec_function) |
5915 | end_going_arg (); | |
f3226a90 | 5916 | |
d25a45d4 | 5917 | return 0; |
ed1f651b RS |
5918 | } |
5919 | ||
f3226a90 JT |
5920 | /* Look up a spec function. */ |
5921 | ||
5922 | static const struct spec_function * | |
1d088dee | 5923 | lookup_spec_function (const char *name) |
f3226a90 | 5924 | { |
f3226a90 | 5925 | const struct spec_function *sf; |
f3226a90 | 5926 | |
4c360e1f RE |
5927 | for (sf = static_spec_functions; sf->name != NULL; sf++) |
5928 | if (strcmp (sf->name, name) == 0) | |
5929 | return sf; | |
f3226a90 JT |
5930 | |
5931 | return NULL; | |
5932 | } | |
5933 | ||
5934 | /* Evaluate a spec function. */ | |
5935 | ||
5936 | static const char * | |
1d088dee | 5937 | eval_spec_function (const char *func, const char *args) |
f3226a90 JT |
5938 | { |
5939 | const struct spec_function *sf; | |
5940 | const char *funcval; | |
5941 | ||
5942 | /* Saved spec processing context. */ | |
9771b263 | 5943 | vec<const_char_p> save_argbuf; |
f3226a90 JT |
5944 | |
5945 | int save_arg_going; | |
5946 | int save_delete_this_arg; | |
5947 | int save_this_is_output_file; | |
5948 | int save_this_is_library_file; | |
5949 | int save_input_from_pipe; | |
3beb864c | 5950 | int save_this_is_linker_script; |
f3226a90 JT |
5951 | const char *save_suffix_subst; |
5952 | ||
b50ff8bb | 5953 | int save_growing_size; |
f87604f8 | 5954 | void *save_growing_value = NULL; |
f3226a90 JT |
5955 | |
5956 | sf = lookup_spec_function (func); | |
5957 | if (sf == NULL) | |
40fecdd6 | 5958 | fatal_error (input_location, "unknown spec function %qs", func); |
f3226a90 JT |
5959 | |
5960 | /* Push the spec processing context. */ | |
f3226a90 JT |
5961 | save_argbuf = argbuf; |
5962 | ||
5963 | save_arg_going = arg_going; | |
5964 | save_delete_this_arg = delete_this_arg; | |
5965 | save_this_is_output_file = this_is_output_file; | |
5966 | save_this_is_library_file = this_is_library_file; | |
3beb864c | 5967 | save_this_is_linker_script = this_is_linker_script; |
f3226a90 JT |
5968 | save_input_from_pipe = input_from_pipe; |
5969 | save_suffix_subst = suffix_subst; | |
5970 | ||
b50ff8bb OH |
5971 | /* If we have some object growing now, finalize it so the args and function |
5972 | eval proceed from a cleared context. This is needed to prevent the first | |
5973 | constructed arg from mistakenly including the growing value. We'll push | |
5974 | this value back on the obstack once the function evaluation is done, to | |
5975 | restore a consistent processing context for our caller. This is fine as | |
5976 | the address of growing objects isn't guaranteed to remain stable until | |
5977 | they are finalized, and we expect this situation to be rare enough for | |
5978 | the extra copy not to be an issue. */ | |
5979 | save_growing_size = obstack_object_size (&obstack); | |
5980 | if (save_growing_size > 0) | |
5981 | save_growing_value = obstack_finish (&obstack); | |
5982 | ||
f3226a90 JT |
5983 | /* Create a new spec processing context, and build the function |
5984 | arguments. */ | |
5985 | ||
5986 | alloc_args (); | |
5987 | if (do_spec_2 (args) < 0) | |
40fecdd6 | 5988 | fatal_error (input_location, "error in args to spec function %qs", func); |
f3226a90 JT |
5989 | |
5990 | /* argbuf_index is an index for the next argument to be inserted, and | |
5991 | so contains the count of the args already inserted. */ | |
5992 | ||
9771b263 DN |
5993 | funcval = (*sf->func) (argbuf.length (), |
5994 | argbuf.address ()); | |
f3226a90 JT |
5995 | |
5996 | /* Pop the spec processing context. */ | |
9771b263 | 5997 | argbuf.release (); |
f3226a90 JT |
5998 | argbuf = save_argbuf; |
5999 | ||
6000 | arg_going = save_arg_going; | |
6001 | delete_this_arg = save_delete_this_arg; | |
6002 | this_is_output_file = save_this_is_output_file; | |
6003 | this_is_library_file = save_this_is_library_file; | |
3beb864c | 6004 | this_is_linker_script = save_this_is_linker_script; |
f3226a90 JT |
6005 | input_from_pipe = save_input_from_pipe; |
6006 | suffix_subst = save_suffix_subst; | |
6007 | ||
b50ff8bb OH |
6008 | if (save_growing_size > 0) |
6009 | obstack_grow (&obstack, save_growing_value, save_growing_size); | |
6010 | ||
f3226a90 JT |
6011 | return funcval; |
6012 | } | |
6013 | ||
6014 | /* Handle a spec function call of the form: | |
6015 | ||
6016 | %:function(args) | |
6017 | ||
6018 | ARGS is processed as a spec in a separate context and split into an | |
6019 | argument vector in the normal fashion. The function returns a string | |
6020 | containing a spec which we then process in the caller's context, or | |
de5a5fa1 MP |
6021 | NULL if no processing is required. |
6022 | ||
6023 | If RETVAL_NONNULL is not NULL, then store a bool whether function | |
6024 | returned non-NULL. */ | |
f3226a90 JT |
6025 | |
6026 | static const char * | |
de5a5fa1 | 6027 | handle_spec_function (const char *p, bool *retval_nonnull) |
f3226a90 JT |
6028 | { |
6029 | char *func, *args; | |
6030 | const char *endp, *funcval; | |
6031 | int count; | |
6032 | ||
6033 | processing_spec_function++; | |
6034 | ||
6035 | /* Get the function name. */ | |
6036 | for (endp = p; *endp != '\0'; endp++) | |
6037 | { | |
6038 | if (*endp == '(') /* ) */ | |
6039 | break; | |
6040 | /* Only allow [A-Za-z0-9], -, and _ in function names. */ | |
6041 | if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_')) | |
40fecdd6 | 6042 | fatal_error (input_location, "malformed spec function name"); |
f3226a90 JT |
6043 | } |
6044 | if (*endp != '(') /* ) */ | |
40fecdd6 | 6045 | fatal_error (input_location, "no arguments for spec function"); |
f3226a90 JT |
6046 | func = save_string (p, endp - p); |
6047 | p = ++endp; | |
6048 | ||
6049 | /* Get the arguments. */ | |
6050 | for (count = 0; *endp != '\0'; endp++) | |
6051 | { | |
6052 | /* ( */ | |
6053 | if (*endp == ')') | |
6054 | { | |
6055 | if (count == 0) | |
6056 | break; | |
6057 | count--; | |
6058 | } | |
6059 | else if (*endp == '(') /* ) */ | |
6060 | count++; | |
6061 | } | |
6062 | /* ( */ | |
6063 | if (*endp != ')') | |
40fecdd6 | 6064 | fatal_error (input_location, "malformed spec function arguments"); |
f3226a90 JT |
6065 | args = save_string (p, endp - p); |
6066 | p = ++endp; | |
6067 | ||
6068 | /* p now points to just past the end of the spec function expression. */ | |
6069 | ||
6070 | funcval = eval_spec_function (func, args); | |
6071 | if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0) | |
6072 | p = NULL; | |
de5a5fa1 MP |
6073 | if (retval_nonnull) |
6074 | *retval_nonnull = funcval != NULL; | |
f3226a90 JT |
6075 | |
6076 | free (func); | |
6077 | free (args); | |
6078 | ||
6079 | processing_spec_function--; | |
6080 | ||
6081 | return p; | |
6082 | } | |
6083 | ||
4977bab6 ZW |
6084 | /* Inline subroutine of handle_braces. Returns true if the current |
6085 | input suffix matches the atom bracketed by ATOM and END_ATOM. */ | |
6086 | static inline bool | |
1d088dee | 6087 | input_suffix_matches (const char *atom, const char *end_atom) |
4977bab6 ZW |
6088 | { |
6089 | return (input_suffix | |
6090 | && !strncmp (input_suffix, atom, end_atom - atom) | |
6091 | && input_suffix[end_atom - atom] == '\0'); | |
6092 | } | |
ed1f651b | 6093 | |
48137d59 GK |
6094 | /* Subroutine of handle_braces. Returns true if the current |
6095 | input file's spec name matches the atom bracketed by ATOM and END_ATOM. */ | |
6096 | static bool | |
6097 | input_spec_matches (const char *atom, const char *end_atom) | |
6098 | { | |
6099 | return (input_file_compiler | |
6100 | && input_file_compiler->suffix | |
6101 | && input_file_compiler->suffix[0] != '\0' | |
6102 | && !strncmp (input_file_compiler->suffix + 1, atom, | |
6103 | end_atom - atom) | |
6104 | && input_file_compiler->suffix[end_atom - atom + 1] == '\0'); | |
6105 | } | |
6106 | ||
953ff289 | 6107 | /* Subroutine of handle_braces. Returns true if a switch |
4977bab6 ZW |
6108 | matching the atom bracketed by ATOM and END_ATOM appeared on the |
6109 | command line. */ | |
953ff289 | 6110 | static bool |
1d088dee | 6111 | switch_matches (const char *atom, const char *end_atom, int starred) |
ed1f651b | 6112 | { |
4977bab6 ZW |
6113 | int i; |
6114 | int len = end_atom - atom; | |
6115 | int plen = starred ? len : -1; | |
ed1f651b | 6116 | |
4977bab6 ZW |
6117 | for (i = 0; i < n_switches; i++) |
6118 | if (!strncmp (switches[i].part1, atom, len) | |
6119 | && (starred || switches[i].part1[len] == '\0') | |
6120 | && check_live_switch (i, plen)) | |
6121 | return true; | |
8097c429 | 6122 | |
5371f719 MG |
6123 | /* Check if a switch with separated form matching the atom. |
6124 | We check -D and -U switches. */ | |
6125 | else if (switches[i].args != 0) | |
6126 | { | |
6127 | if ((*switches[i].part1 == 'D' || *switches[i].part1 == 'U') | |
6128 | && *switches[i].part1 == atom[0]) | |
6129 | { | |
6130 | if (!strncmp (switches[i].args[0], &atom[1], len - 1) | |
6131 | && (starred || (switches[i].part1[1] == '\0' | |
6132 | && switches[i].args[0][len - 1] == '\0')) | |
6133 | && check_live_switch (i, (starred ? 1 : -1))) | |
6134 | return true; | |
6135 | } | |
6136 | } | |
6137 | ||
4977bab6 ZW |
6138 | return false; |
6139 | } | |
ed1f651b | 6140 | |
4977bab6 ZW |
6141 | /* Inline subroutine of handle_braces. Mark all of the switches which |
6142 | match ATOM (extends to END_ATOM; STARRED indicates whether there | |
6143 | was a star after the atom) for later processing. */ | |
6144 | static inline void | |
1d088dee | 6145 | mark_matching_switches (const char *atom, const char *end_atom, int starred) |
4977bab6 ZW |
6146 | { |
6147 | int i; | |
6148 | int len = end_atom - atom; | |
6149 | int plen = starred ? len : -1; | |
6150 | ||
6151 | for (i = 0; i < n_switches; i++) | |
6152 | if (!strncmp (switches[i].part1, atom, len) | |
6153 | && (starred || switches[i].part1[len] == '\0') | |
6154 | && check_live_switch (i, plen)) | |
6155 | switches[i].ordering = 1; | |
6156 | } | |
9bf09437 | 6157 | |
4977bab6 ZW |
6158 | /* Inline subroutine of handle_braces. Process all the currently |
6159 | marked switches through give_switch, and clear the marks. */ | |
6160 | static inline void | |
1d088dee | 6161 | process_marked_switches (void) |
4977bab6 ZW |
6162 | { |
6163 | int i; | |
ed1f651b | 6164 | |
4977bab6 ZW |
6165 | for (i = 0; i < n_switches; i++) |
6166 | if (switches[i].ordering == 1) | |
6167 | { | |
6168 | switches[i].ordering = 0; | |
6169 | give_switch (i, 0); | |
6170 | } | |
6171 | } | |
ed1f651b | 6172 | |
4977bab6 ZW |
6173 | /* Handle a %{ ... } construct. P points just inside the leading {. |
6174 | Returns a pointer one past the end of the brace block, or 0 | |
6175 | if we call do_spec_1 and that returns -1. */ | |
ed1f651b | 6176 | |
4977bab6 | 6177 | static const char * |
1d088dee | 6178 | handle_braces (const char *p) |
4977bab6 ZW |
6179 | { |
6180 | const char *atom, *end_atom; | |
6181 | const char *d_atom = NULL, *d_end_atom = NULL; | |
3b5edfee | 6182 | const char *orig = p; |
8097c429 | 6183 | |
4977bab6 | 6184 | bool a_is_suffix; |
48137d59 | 6185 | bool a_is_spectype; |
4977bab6 ZW |
6186 | bool a_is_starred; |
6187 | bool a_is_negated; | |
6188 | bool a_matched; | |
9bf09437 | 6189 | |
4977bab6 ZW |
6190 | bool a_must_be_last = false; |
6191 | bool ordered_set = false; | |
6192 | bool disjunct_set = false; | |
6193 | bool disj_matched = false; | |
6194 | bool disj_starred = true; | |
6195 | bool n_way_choice = false; | |
6196 | bool n_way_matched = false; | |
6197 | ||
6198 | #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0) | |
9bf09437 | 6199 | |
4977bab6 | 6200 | do |
ed1f651b | 6201 | { |
4977bab6 | 6202 | if (a_must_be_last) |
3b5edfee | 6203 | goto invalid; |
9bf09437 | 6204 | |
4977bab6 | 6205 | /* Scan one "atom" (S in the description above of %{}, possibly |
48137d59 GK |
6206 | with '!', '.', '@', ',', or '*' modifiers). */ |
6207 | a_matched = false; | |
6208 | a_is_suffix = false; | |
6209 | a_is_starred = false; | |
6210 | a_is_negated = false; | |
6211 | a_is_spectype = false; | |
9218435e | 6212 | |
c3284718 | 6213 | SKIP_WHITE (); |
4977bab6 ZW |
6214 | if (*p == '!') |
6215 | p++, a_is_negated = true; | |
ed1f651b | 6216 | |
c3284718 | 6217 | SKIP_WHITE (); |
de5a5fa1 MP |
6218 | if (*p == '%' && p[1] == ':') |
6219 | { | |
6220 | atom = NULL; | |
6221 | end_atom = NULL; | |
6222 | p = handle_spec_function (p + 2, &a_matched); | |
6223 | } | |
6224 | else | |
6225 | { | |
6226 | if (*p == '.') | |
6227 | p++, a_is_suffix = true; | |
6228 | else if (*p == ',') | |
6229 | p++, a_is_spectype = true; | |
6230 | ||
6231 | atom = p; | |
c3284718 | 6232 | while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '=' |
de5a5fa1 MP |
6233 | || *p == ',' || *p == '.' || *p == '@') |
6234 | p++; | |
6235 | end_atom = p; | |
ed1f651b | 6236 | |
de5a5fa1 MP |
6237 | if (*p == '*') |
6238 | p++, a_is_starred = 1; | |
6239 | } | |
196a37f4 | 6240 | |
c3284718 | 6241 | SKIP_WHITE (); |
3b5edfee | 6242 | switch (*p) |
4977bab6 | 6243 | { |
3b5edfee | 6244 | case '&': case '}': |
4977bab6 ZW |
6245 | /* Substitute the switch(es) indicated by the current atom. */ |
6246 | ordered_set = true; | |
6247 | if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix | |
48137d59 | 6248 | || a_is_spectype || atom == end_atom) |
3b5edfee | 6249 | goto invalid; |
ed1f651b | 6250 | |
4977bab6 ZW |
6251 | mark_matching_switches (atom, end_atom, a_is_starred); |
6252 | ||
6253 | if (*p == '}') | |
6254 | process_marked_switches (); | |
3b5edfee NS |
6255 | break; |
6256 | ||
6257 | case '|': case ':': | |
4977bab6 ZW |
6258 | /* Substitute some text if the current atom appears as a switch |
6259 | or suffix. */ | |
6260 | disjunct_set = true; | |
6261 | if (ordered_set) | |
3b5edfee | 6262 | goto invalid; |
ed1f651b | 6263 | |
de5a5fa1 | 6264 | if (atom && atom == end_atom) |
ed1f651b | 6265 | { |
4977bab6 | 6266 | if (!n_way_choice || disj_matched || *p == '|' |
b8698a0f | 6267 | || a_is_negated || a_is_suffix || a_is_spectype |
48137d59 | 6268 | || a_is_starred) |
3b5edfee | 6269 | goto invalid; |
4977bab6 ZW |
6270 | |
6271 | /* An empty term may appear as the last choice of an | |
6272 | N-way choice set; it means "otherwise". */ | |
6273 | a_must_be_last = true; | |
6274 | disj_matched = !n_way_matched; | |
6275 | disj_starred = false; | |
ed1f651b | 6276 | } |
4977bab6 | 6277 | else |
ed1f651b | 6278 | { |
48137d59 GK |
6279 | if ((a_is_suffix || a_is_spectype) && a_is_starred) |
6280 | goto invalid; | |
3beb864c | 6281 | |
48137d59 GK |
6282 | if (!a_is_starred) |
6283 | disj_starred = false; | |
6284 | ||
6285 | /* Don't bother testing this atom if we already have a | |
6286 | match. */ | |
6287 | if (!disj_matched && !n_way_matched) | |
6288 | { | |
de5a5fa1 MP |
6289 | if (atom == NULL) |
6290 | /* a_matched is already set by handle_spec_function. */; | |
6291 | else if (a_is_suffix) | |
48137d59 GK |
6292 | a_matched = input_suffix_matches (atom, end_atom); |
6293 | else if (a_is_spectype) | |
6294 | a_matched = input_spec_matches (atom, end_atom); | |
6295 | else | |
6296 | a_matched = switch_matches (atom, end_atom, a_is_starred); | |
3beb864c | 6297 | |
48137d59 GK |
6298 | if (a_matched != a_is_negated) |
6299 | { | |
6300 | disj_matched = true; | |
6301 | d_atom = atom; | |
6302 | d_end_atom = end_atom; | |
6303 | } | |
6304 | } | |
ed1f651b | 6305 | } |
ed1f651b | 6306 | |
4977bab6 | 6307 | if (*p == ':') |
ed1f651b | 6308 | { |
4977bab6 ZW |
6309 | /* Found the body, that is, the text to substitute if the |
6310 | current disjunction matches. */ | |
6311 | p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred, | |
6312 | disj_matched && !n_way_matched); | |
6313 | if (p == 0) | |
6314 | return 0; | |
ed1f651b | 6315 | |
4977bab6 ZW |
6316 | /* If we have an N-way choice, reset state for the next |
6317 | disjunction. */ | |
6318 | if (*p == ';') | |
ed1f651b | 6319 | { |
4977bab6 ZW |
6320 | n_way_choice = true; |
6321 | n_way_matched |= disj_matched; | |
6322 | disj_matched = false; | |
6323 | disj_starred = true; | |
6324 | d_atom = d_end_atom = NULL; | |
ed1f651b RS |
6325 | } |
6326 | } | |
3b5edfee NS |
6327 | break; |
6328 | ||
6329 | default: | |
6330 | goto invalid; | |
ed1f651b | 6331 | } |
4977bab6 ZW |
6332 | } |
6333 | while (*p++ != '}'); | |
ed1f651b | 6334 | |
4977bab6 | 6335 | return p; |
7904f95f | 6336 | |
3b5edfee | 6337 | invalid: |
40fecdd6 | 6338 | fatal_error (input_location, "braced spec %qs is invalid at %qc", orig, *p); |
7904f95f | 6339 | |
4977bab6 ZW |
6340 | #undef SKIP_WHITE |
6341 | } | |
6342 | ||
6343 | /* Subroutine of handle_braces. Scan and process a brace substitution body | |
6344 | (X in the description of %{} syntax). P points one past the colon; | |
6345 | ATOM and END_ATOM bracket the first atom which was found to be true | |
6346 | (present) in the current disjunction; STARRED indicates whether all | |
6347 | the atoms in the current disjunction were starred (for syntax validation); | |
6348 | MATCHED indicates whether the disjunction matched or not, and therefore | |
6349 | whether or not the body is to be processed through do_spec_1 or just | |
6350 | skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1 | |
6351 | returns -1. */ | |
6352 | ||
6353 | static const char * | |
1d088dee AJ |
6354 | process_brace_body (const char *p, const char *atom, const char *end_atom, |
6355 | int starred, int matched) | |
4977bab6 ZW |
6356 | { |
6357 | const char *body, *end_body; | |
6358 | unsigned int nesting_level; | |
6359 | bool have_subst = false; | |
6360 | ||
6361 | /* Locate the closing } or ;, honoring nested braces. | |
6362 | Trim trailing whitespace. */ | |
6363 | body = p; | |
6364 | nesting_level = 1; | |
6365 | for (;;) | |
6366 | { | |
6367 | if (*p == '{') | |
6368 | nesting_level++; | |
6369 | else if (*p == '}') | |
ed1f651b | 6370 | { |
4977bab6 ZW |
6371 | if (!--nesting_level) |
6372 | break; | |
ed1f651b | 6373 | } |
4977bab6 ZW |
6374 | else if (*p == ';' && nesting_level == 1) |
6375 | break; | |
6376 | else if (*p == '%' && p[1] == '*' && nesting_level == 1) | |
6377 | have_subst = true; | |
6378 | else if (*p == '\0') | |
3b5edfee | 6379 | goto invalid; |
4977bab6 | 6380 | p++; |
ed1f651b | 6381 | } |
1d088dee | 6382 | |
4977bab6 ZW |
6383 | end_body = p; |
6384 | while (end_body[-1] == ' ' || end_body[-1] == '\t') | |
6385 | end_body--; | |
ed1f651b | 6386 | |
4977bab6 | 6387 | if (have_subst && !starred) |
3b5edfee | 6388 | goto invalid; |
9bf09437 | 6389 | |
4977bab6 | 6390 | if (matched) |
196a37f4 | 6391 | { |
4977bab6 ZW |
6392 | /* Copy the substitution body to permanent storage and execute it. |
6393 | If have_subst is false, this is a simple matter of running the | |
6394 | body through do_spec_1... */ | |
6395 | char *string = save_string (body, end_body - body); | |
6396 | if (!have_subst) | |
6397 | { | |
6398 | if (do_spec_1 (string, 0, NULL) < 0) | |
9376dd63 DM |
6399 | { |
6400 | free (string); | |
6401 | return 0; | |
6402 | } | |
4977bab6 ZW |
6403 | } |
6404 | else | |
6405 | { | |
6406 | /* ... but if have_subst is true, we have to process the | |
6407 | body once for each matching switch, with %* set to the | |
6408 | variant part of the switch. */ | |
6409 | unsigned int hard_match_len = end_atom - atom; | |
6410 | int i; | |
196a37f4 | 6411 | |
4977bab6 ZW |
6412 | for (i = 0; i < n_switches; i++) |
6413 | if (!strncmp (switches[i].part1, atom, hard_match_len) | |
6414 | && check_live_switch (i, hard_match_len)) | |
6415 | { | |
6416 | if (do_spec_1 (string, 0, | |
6417 | &switches[i].part1[hard_match_len]) < 0) | |
9376dd63 DM |
6418 | { |
6419 | free (string); | |
6420 | return 0; | |
6421 | } | |
4977bab6 ZW |
6422 | /* Pass any arguments this switch has. */ |
6423 | give_switch (i, 1); | |
6424 | suffix_subst = NULL; | |
6425 | } | |
6426 | } | |
9376dd63 | 6427 | free (string); |
10ebf5fe NB |
6428 | } |
6429 | ||
4977bab6 | 6430 | return p; |
3b5edfee NS |
6431 | |
6432 | invalid: | |
40fecdd6 | 6433 | fatal_error (input_location, "braced spec body %qs is invalid", body); |
ed1f651b | 6434 | } |
f5b0eb4e | 6435 | \f |
6c396fb5 RK |
6436 | /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch |
6437 | on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*} | |
6438 | spec, or -1 if either exact match or %* is used. | |
f5b0eb4e | 6439 | |
99ea153e | 6440 | A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch |
f5b0eb4e RK |
6441 | whose value does not begin with "no-" is obsoleted by the same value |
6442 | with the "no-", similarly for a switch with the "no-" prefix. */ | |
6443 | ||
6444 | static int | |
1d088dee | 6445 | check_live_switch (int switchnum, int prefix_length) |
f5b0eb4e | 6446 | { |
878f32c3 | 6447 | const char *name = switches[switchnum].part1; |
f5b0eb4e RK |
6448 | int i; |
6449 | ||
2153915d AO |
6450 | /* If we already processed this switch and determined if it was |
6451 | live or not, return our past determination. */ | |
6452 | if (switches[switchnum].live_cond != 0) | |
6453 | return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0 | |
6454 | && (switches[switchnum].live_cond & SWITCH_FALSE) == 0 | |
94b90527 JJ |
6455 | && (switches[switchnum].live_cond & SWITCH_IGNORE_PERMANENTLY) |
6456 | == 0); | |
2153915d | 6457 | |
6c396fb5 | 6458 | /* In the common case of {<at-most-one-letter>*}, a negating |
f5b0eb4e RK |
6459 | switch would always match, so ignore that case. We will just |
6460 | send the conflicting switches to the compiler phase. */ | |
6c396fb5 | 6461 | if (prefix_length >= 0 && prefix_length <= 1) |
f5b0eb4e RK |
6462 | return 1; |
6463 | ||
f5b0eb4e RK |
6464 | /* Now search for duplicate in a manner that depends on the name. */ |
6465 | switch (*name) | |
6466 | { | |
6467 | case 'O': | |
d25a45d4 KH |
6468 | for (i = switchnum + 1; i < n_switches; i++) |
6469 | if (switches[i].part1[0] == 'O') | |
6470 | { | |
d168aaee | 6471 | switches[switchnum].validated = true; |
d25a45d4 KH |
6472 | switches[switchnum].live_cond = SWITCH_FALSE; |
6473 | return 0; | |
6474 | } | |
f5b0eb4e | 6475 | break; |
ed1f651b | 6476 | |
99ea153e | 6477 | case 'W': case 'f': case 'm': case 'g': |
6c396fb5 | 6478 | if (! strncmp (name + 1, "no-", 3)) |
f5b0eb4e | 6479 | { |
0f41302f | 6480 | /* We have Xno-YYY, search for XYYY. */ |
f5b0eb4e RK |
6481 | for (i = switchnum + 1; i < n_switches; i++) |
6482 | if (switches[i].part1[0] == name[0] | |
6483 | && ! strcmp (&switches[i].part1[1], &name[4])) | |
d25a45d4 | 6484 | { |
d168aaee CB |
6485 | /* --specs are validated with the validate_switches mechanism. */ |
6486 | if (switches[switchnum].known) | |
6487 | switches[switchnum].validated = true; | |
d25a45d4 KH |
6488 | switches[switchnum].live_cond = SWITCH_FALSE; |
6489 | return 0; | |
6490 | } | |
f5b0eb4e RK |
6491 | } |
6492 | else | |
6493 | { | |
6494 | /* We have XYYY, search for Xno-YYY. */ | |
6495 | for (i = switchnum + 1; i < n_switches; i++) | |
6496 | if (switches[i].part1[0] == name[0] | |
6497 | && switches[i].part1[1] == 'n' | |
6498 | && switches[i].part1[2] == 'o' | |
6499 | && switches[i].part1[3] == '-' | |
6500 | && !strcmp (&switches[i].part1[4], &name[1])) | |
d25a45d4 | 6501 | { |
d168aaee CB |
6502 | /* --specs are validated with the validate_switches mechanism. */ |
6503 | if (switches[switchnum].known) | |
6504 | switches[switchnum].validated = true; | |
d25a45d4 KH |
6505 | switches[switchnum].live_cond = SWITCH_FALSE; |
6506 | return 0; | |
6507 | } | |
f5b0eb4e RK |
6508 | } |
6509 | break; | |
6510 | } | |
6511 | ||
6512 | /* Otherwise the switch is live. */ | |
3371362c | 6513 | switches[switchnum].live_cond |= SWITCH_LIVE; |
f5b0eb4e RK |
6514 | return 1; |
6515 | } | |
6516 | \f | |
ed1f651b RS |
6517 | /* Pass a switch to the current accumulating command |
6518 | in the same form that we received it. | |
6519 | SWITCHNUM identifies the switch; it is an index into | |
6520 | the vector of switches gcc received, which is `switches'. | |
6521 | This cannot fail since it never finishes a command line. | |
6522 | ||
4977bab6 | 6523 | If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */ |
ed1f651b RS |
6524 | |
6525 | static void | |
1d088dee | 6526 | give_switch (int switchnum, int omit_first_word) |
ed1f651b | 6527 | { |
3371362c | 6528 | if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0) |
8097c429 TT |
6529 | return; |
6530 | ||
ed1f651b RS |
6531 | if (!omit_first_word) |
6532 | { | |
6496a589 KG |
6533 | do_spec_1 ("-", 0, NULL); |
6534 | do_spec_1 (switches[switchnum].part1, 1, NULL); | |
ed1f651b | 6535 | } |
1ba9a487 | 6536 | |
ed1f651b RS |
6537 | if (switches[switchnum].args != 0) |
6538 | { | |
fbd40359 | 6539 | const char **p; |
ed1f651b RS |
6540 | for (p = switches[switchnum].args; *p; p++) |
6541 | { | |
11972f66 NS |
6542 | const char *arg = *p; |
6543 | ||
4977bab6 | 6544 | do_spec_1 (" ", 0, NULL); |
11972f66 NS |
6545 | if (suffix_subst) |
6546 | { | |
6547 | unsigned length = strlen (arg); | |
e65677af | 6548 | int dot = 0; |
11972f66 NS |
6549 | |
6550 | while (length-- && !IS_DIR_SEPARATOR (arg[length])) | |
6551 | if (arg[length] == '.') | |
6552 | { | |
c3284718 | 6553 | (CONST_CAST (char *, arg))[length] = 0; |
e65677af | 6554 | dot = 1; |
11972f66 NS |
6555 | break; |
6556 | } | |
6496a589 | 6557 | do_spec_1 (arg, 1, NULL); |
e65677af | 6558 | if (dot) |
c3284718 | 6559 | (CONST_CAST (char *, arg))[length] = '.'; |
e65677af | 6560 | do_spec_1 (suffix_subst, 1, NULL); |
11972f66 NS |
6561 | } |
6562 | else | |
6496a589 | 6563 | do_spec_1 (arg, 1, NULL); |
ed1f651b RS |
6564 | } |
6565 | } | |
1ba9a487 | 6566 | |
6496a589 | 6567 | do_spec_1 (" ", 0, NULL); |
d168aaee | 6568 | switches[switchnum].validated = true; |
ed1f651b RS |
6569 | } |
6570 | \f | |
dc10fd96 JJ |
6571 | /* Print GCC configuration (e.g. version, thread model, target, |
6572 | configuration_arguments) to a given FILE. */ | |
6573 | ||
6574 | static void | |
6575 | print_configuration (FILE *file) | |
6576 | { | |
6577 | int n; | |
6578 | const char *thrmod; | |
6579 | ||
6580 | fnotice (file, "Target: %s\n", spec_machine); | |
6581 | fnotice (file, "Configured with: %s\n", configuration_arguments); | |
6582 | ||
6583 | #ifdef THREAD_MODEL_SPEC | |
6584 | /* We could have defined THREAD_MODEL_SPEC to "%*" by default, | |
6585 | but there's no point in doing all this processing just to get | |
6586 | thread_model back. */ | |
6587 | obstack_init (&obstack); | |
6588 | do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model); | |
6589 | obstack_1grow (&obstack, '\0'); | |
6590 | thrmod = XOBFINISH (&obstack, const char *); | |
6591 | #else | |
6592 | thrmod = thread_model; | |
6593 | #endif | |
6594 | ||
6595 | fnotice (file, "Thread model: %s\n", thrmod); | |
6596 | ||
6597 | /* compiler_version is truncated at the first space when initialized | |
6598 | from version string, so truncate version_string at the first space | |
6599 | before comparing. */ | |
6600 | for (n = 0; version_string[n]; n++) | |
6601 | if (version_string[n] == ' ') | |
6602 | break; | |
6603 | ||
6604 | if (! strncmp (version_string, compiler_version, n) | |
6605 | && compiler_version[n] == 0) | |
29585247 | 6606 | fnotice (file, "gcc version %s %s\n", version_string, |
dc10fd96 JJ |
6607 | pkgversion_string); |
6608 | else | |
29585247 | 6609 | fnotice (file, "gcc driver version %s %sexecuting gcc version %s\n", |
dc10fd96 JJ |
6610 | version_string, pkgversion_string, compiler_version); |
6611 | ||
6612 | } | |
6613 | ||
6614 | #define RETRY_ICE_ATTEMPTS 3 | |
6615 | ||
6616 | /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */ | |
6617 | ||
6618 | static bool | |
6619 | files_equal_p (char *file1, char *file2) | |
6620 | { | |
6621 | struct stat st1, st2; | |
6622 | off_t n, len; | |
6623 | int fd1, fd2; | |
6624 | const int bufsize = 8192; | |
6625 | char *buf = XNEWVEC (char, bufsize); | |
6626 | ||
6627 | fd1 = open (file1, O_RDONLY); | |
6628 | fd2 = open (file2, O_RDONLY); | |
6629 | ||
6630 | if (fd1 < 0 || fd2 < 0) | |
6631 | goto error; | |
6632 | ||
6633 | if (fstat (fd1, &st1) < 0 || fstat (fd2, &st2) < 0) | |
6634 | goto error; | |
6635 | ||
6636 | if (st1.st_size != st2.st_size) | |
6637 | goto error; | |
6638 | ||
6639 | for (n = st1.st_size; n; n -= len) | |
6640 | { | |
6641 | len = n; | |
6642 | if ((int) len > bufsize / 2) | |
6643 | len = bufsize / 2; | |
6644 | ||
6645 | if (read (fd1, buf, len) != (int) len | |
6646 | || read (fd2, buf + bufsize / 2, len) != (int) len) | |
6647 | { | |
6648 | goto error; | |
6649 | } | |
6650 | ||
6651 | if (memcmp (buf, buf + bufsize / 2, len) != 0) | |
6652 | goto error; | |
6653 | } | |
6654 | ||
6655 | free (buf); | |
6656 | close (fd1); | |
6657 | close (fd2); | |
6658 | ||
6659 | return 1; | |
6660 | ||
6661 | error: | |
6662 | free (buf); | |
6663 | close (fd1); | |
6664 | close (fd2); | |
6665 | return 0; | |
6666 | } | |
6667 | ||
6668 | /* Check that compiler's output doesn't differ across runs. | |
6669 | TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing | |
6670 | stdout and stderr for each compiler run. Return true if all of | |
6671 | TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */ | |
6672 | ||
6673 | static bool | |
6674 | check_repro (char **temp_stdout_files, char **temp_stderr_files) | |
6675 | { | |
6676 | int i; | |
6677 | for (i = 0; i < RETRY_ICE_ATTEMPTS - 2; ++i) | |
6678 | { | |
6679 | if (!files_equal_p (temp_stdout_files[i], temp_stdout_files[i + 1]) | |
6680 | || !files_equal_p (temp_stderr_files[i], temp_stderr_files[i + 1])) | |
6681 | { | |
6682 | fnotice (stderr, "The bug is not reproducible, so it is" | |
6683 | " likely a hardware or OS problem.\n"); | |
6684 | break; | |
6685 | } | |
6686 | } | |
6687 | return i == RETRY_ICE_ATTEMPTS - 2; | |
6688 | } | |
6689 | ||
6690 | enum attempt_status { | |
6691 | ATTEMPT_STATUS_FAIL_TO_RUN, | |
6692 | ATTEMPT_STATUS_SUCCESS, | |
6693 | ATTEMPT_STATUS_ICE | |
6694 | }; | |
6695 | ||
6696 | ||
6697 | /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout | |
6698 | to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP | |
6699 | and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write | |
6700 | GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if | |
6701 | compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and | |
6702 | ATTEMPT_STATUS_SUCCESS otherwise. */ | |
6703 | ||
6704 | static enum attempt_status | |
6705 | run_attempt (const char **new_argv, const char *out_temp, | |
6706 | const char *err_temp, int emit_system_info, int append) | |
6707 | { | |
6708 | ||
6709 | if (emit_system_info) | |
6710 | { | |
6711 | FILE *file_out = fopen (err_temp, "a"); | |
6712 | print_configuration (file_out); | |
29585247 | 6713 | fputs ("\n", file_out); |
dc10fd96 JJ |
6714 | fclose (file_out); |
6715 | } | |
6716 | ||
6717 | int exit_status; | |
6718 | const char *errmsg; | |
6719 | struct pex_obj *pex; | |
6720 | int err; | |
6721 | int pex_flags = PEX_USE_PIPES | PEX_LAST; | |
6722 | enum attempt_status status = ATTEMPT_STATUS_FAIL_TO_RUN; | |
6723 | ||
6724 | if (append) | |
6725 | pex_flags |= PEX_STDOUT_APPEND | PEX_STDERR_APPEND; | |
6726 | ||
6727 | pex = pex_init (PEX_USE_PIPES, new_argv[0], NULL); | |
6728 | if (!pex) | |
40fecdd6 | 6729 | fatal_error (input_location, "pex_init failed: %m"); |
dc10fd96 JJ |
6730 | |
6731 | errmsg = pex_run (pex, pex_flags, new_argv[0], | |
6732 | CONST_CAST2 (char *const *, const char **, &new_argv[1]), out_temp, | |
6733 | err_temp, &err); | |
1120a850 TS |
6734 | if (errmsg != NULL) |
6735 | { | |
6736 | if (err == 0) | |
40fecdd6 | 6737 | fatal_error (input_location, errmsg); |
1120a850 TS |
6738 | else |
6739 | { | |
6740 | errno = err; | |
6741 | pfatal_with_name (errmsg); | |
6742 | } | |
6743 | } | |
dc10fd96 JJ |
6744 | |
6745 | if (!pex_get_status (pex, 1, &exit_status)) | |
6746 | goto out; | |
6747 | ||
6748 | switch (WEXITSTATUS (exit_status)) | |
6749 | { | |
6750 | case ICE_EXIT_CODE: | |
6751 | status = ATTEMPT_STATUS_ICE; | |
6752 | break; | |
6753 | ||
6754 | case SUCCESS_EXIT_CODE: | |
6755 | status = ATTEMPT_STATUS_SUCCESS; | |
6756 | break; | |
6757 | ||
6758 | default: | |
6759 | ; | |
6760 | } | |
6761 | ||
6762 | out: | |
6763 | pex_free (pex); | |
6764 | return status; | |
6765 | } | |
6766 | ||
f78a6ae4 MO |
6767 | /* This routine reads lines from IN file, adds C++ style comments |
6768 | at the begining of each line and writes result into OUT. */ | |
6769 | ||
6770 | static void | |
6771 | insert_comments (const char *file_in, const char *file_out) | |
6772 | { | |
6773 | FILE *in = fopen (file_in, "rb"); | |
6774 | FILE *out = fopen (file_out, "wb"); | |
6775 | char line[256]; | |
6776 | ||
6777 | bool add_comment = true; | |
6778 | while (fgets (line, sizeof (line), in)) | |
6779 | { | |
6780 | if (add_comment) | |
6781 | fputs ("// ", out); | |
6782 | fputs (line, out); | |
6783 | add_comment = strchr (line, '\n') != NULL; | |
6784 | } | |
6785 | ||
6786 | fclose (in); | |
6787 | fclose (out); | |
6788 | } | |
6789 | ||
dc10fd96 JJ |
6790 | /* This routine adds preprocessed source code into the given ERR_FILE. |
6791 | To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to | |
6792 | add information in report file. RUN_ATTEMPT should return | |
6793 | ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */ | |
6794 | ||
6795 | static void | |
6796 | do_report_bug (const char **new_argv, const int nargs, | |
6797 | char **out_file, char **err_file) | |
6798 | { | |
6799 | int i, status; | |
6800 | int fd = open (*out_file, O_RDWR | O_APPEND); | |
6801 | if (fd < 0) | |
6802 | return; | |
6803 | write (fd, "\n//", 3); | |
6804 | for (i = 0; i < nargs; i++) | |
6805 | { | |
6806 | write (fd, " ", 1); | |
6807 | write (fd, new_argv[i], strlen (new_argv[i])); | |
6808 | } | |
6809 | write (fd, "\n\n", 2); | |
6810 | close (fd); | |
6811 | new_argv[nargs] = "-E"; | |
6812 | new_argv[nargs + 1] = NULL; | |
6813 | ||
6814 | status = run_attempt (new_argv, *out_file, *err_file, 0, 1); | |
6815 | ||
6816 | if (status == ATTEMPT_STATUS_SUCCESS) | |
6817 | { | |
6818 | fnotice (stderr, "Preprocessed source stored into %s file," | |
6819 | " please attach this to your bugreport.\n", *out_file); | |
6820 | /* Make sure it is not deleted. */ | |
6821 | free (*out_file); | |
6822 | *out_file = NULL; | |
6823 | } | |
6824 | } | |
6825 | ||
dc10fd96 JJ |
6826 | /* Try to reproduce ICE. If bug is reproducible, generate report .err file |
6827 | containing GCC configuration, backtrace, compiler's command line options | |
6828 | and preprocessed source code. */ | |
6829 | ||
6830 | static void | |
1120a850 | 6831 | try_generate_repro (const char **argv) |
dc10fd96 JJ |
6832 | { |
6833 | int i, nargs, out_arg = -1, quiet = 0, attempt; | |
6834 | const char **new_argv; | |
6835 | char *temp_files[RETRY_ICE_ATTEMPTS * 2]; | |
6836 | char **temp_stdout_files = &temp_files[0]; | |
6837 | char **temp_stderr_files = &temp_files[RETRY_ICE_ATTEMPTS]; | |
6838 | ||
6839 | if (gcc_input_filename == NULL || ! strcmp (gcc_input_filename, "-")) | |
6840 | return; | |
6841 | ||
6842 | for (nargs = 0; argv[nargs] != NULL; ++nargs) | |
6843 | /* Only retry compiler ICEs, not preprocessor ones. */ | |
6844 | if (! strcmp (argv[nargs], "-E")) | |
6845 | return; | |
6846 | else if (argv[nargs][0] == '-' && argv[nargs][1] == 'o') | |
6847 | { | |
6848 | if (out_arg == -1) | |
6849 | out_arg = nargs; | |
6850 | else | |
6851 | return; | |
6852 | } | |
6853 | /* If the compiler is going to output any time information, | |
6854 | it might varry between invocations. */ | |
6855 | else if (! strcmp (argv[nargs], "-quiet")) | |
6856 | quiet = 1; | |
6857 | else if (! strcmp (argv[nargs], "-ftime-report")) | |
6858 | return; | |
6859 | ||
6860 | if (out_arg == -1 || !quiet) | |
6861 | return; | |
6862 | ||
6863 | memset (temp_files, '\0', sizeof (temp_files)); | |
6864 | new_argv = XALLOCAVEC (const char *, nargs + 4); | |
6865 | memcpy (new_argv, argv, (nargs + 1) * sizeof (const char *)); | |
6866 | new_argv[nargs++] = "-frandom-seed=0"; | |
6867 | new_argv[nargs++] = "-fdump-noaddr"; | |
6868 | new_argv[nargs] = NULL; | |
6869 | if (new_argv[out_arg][2] == '\0') | |
6870 | new_argv[out_arg + 1] = "-"; | |
6871 | else | |
6872 | new_argv[out_arg] = "-o-"; | |
6873 | ||
6874 | int status; | |
6875 | for (attempt = 0; attempt < RETRY_ICE_ATTEMPTS; ++attempt) | |
6876 | { | |
6877 | int emit_system_info = 0; | |
6878 | int append = 0; | |
6879 | temp_stdout_files[attempt] = make_temp_file (".out"); | |
6880 | temp_stderr_files[attempt] = make_temp_file (".err"); | |
6881 | ||
6882 | if (attempt == RETRY_ICE_ATTEMPTS - 1) | |
6883 | { | |
6884 | append = 1; | |
6885 | emit_system_info = 1; | |
6886 | } | |
6887 | ||
dc10fd96 JJ |
6888 | status = run_attempt (new_argv, temp_stdout_files[attempt], |
6889 | temp_stderr_files[attempt], emit_system_info, | |
6890 | append); | |
6891 | ||
dc10fd96 JJ |
6892 | if (status != ATTEMPT_STATUS_ICE) |
6893 | { | |
6894 | fnotice (stderr, "The bug is not reproducible, so it is" | |
6895 | " likely a hardware or OS problem.\n"); | |
6896 | goto out; | |
6897 | } | |
6898 | } | |
6899 | ||
6900 | if (!check_repro (temp_stdout_files, temp_stderr_files)) | |
6901 | goto out; | |
6902 | ||
f78a6ae4 MO |
6903 | { |
6904 | /* Insert commented out backtrace into report file. */ | |
6905 | char **stderr_commented = &temp_stdout_files[RETRY_ICE_ATTEMPTS - 1]; | |
6906 | insert_comments (temp_stderr_files[RETRY_ICE_ATTEMPTS - 1], | |
6907 | *stderr_commented); | |
6908 | ||
6909 | /* In final attempt we append compiler options and preprocesssed code to last | |
6910 | generated .out file with configuration and backtrace. */ | |
6911 | char **output = &temp_stdout_files[RETRY_ICE_ATTEMPTS - 1]; | |
6912 | do_report_bug (new_argv, nargs, stderr_commented, output); | |
6913 | } | |
dc10fd96 JJ |
6914 | |
6915 | out: | |
6916 | for (i = 0; i < RETRY_ICE_ATTEMPTS * 2; i++) | |
6917 | if (temp_files[i]) | |
6918 | { | |
6919 | unlink (temp_stdout_files[i]); | |
6920 | free (temp_stdout_files[i]); | |
6921 | } | |
6922 | } | |
6923 | ||
ed1f651b RS |
6924 | /* Search for a file named NAME trying various prefixes including the |
6925 | user's -B prefix and some standard ones. | |
6926 | Return the absolute file name found. If nothing is found, return NAME. */ | |
6927 | ||
878f32c3 | 6928 | static const char * |
1d088dee | 6929 | find_file (const char *name) |
ed1f651b | 6930 | { |
00dcee0c | 6931 | char *newname = find_a_file (&startfile_prefixes, name, R_OK, true); |
ed1f651b RS |
6932 | return newname ? newname : name; |
6933 | } | |
6934 | ||
0ad5835e | 6935 | /* Determine whether a directory exists. If LINKER, return 0 for |
00dcee0c | 6936 | certain fixed names not needed by the linker. */ |
ed1f651b RS |
6937 | |
6938 | static int | |
00dcee0c | 6939 | is_directory (const char *path1, bool linker) |
ed1f651b | 6940 | { |
00dcee0c AM |
6941 | int len1; |
6942 | char *path; | |
ed1f651b RS |
6943 | char *cp; |
6944 | struct stat st; | |
6945 | ||
00dcee0c AM |
6946 | /* Ensure the string ends with "/.". The resulting path will be a |
6947 | directory even if the given path is a symbolic link. */ | |
6948 | len1 = strlen (path1); | |
e1e4cdc4 | 6949 | path = (char *) alloca (3 + len1); |
7e2231e7 | 6950 | memcpy (path, path1, len1); |
00dcee0c | 6951 | cp = path + len1; |
509781a4 | 6952 | if (!IS_DIR_SEPARATOR (cp[-1])) |
48ff801b | 6953 | *cp++ = DIR_SEPARATOR; |
ed1f651b RS |
6954 | *cp++ = '.'; |
6955 | *cp = '\0'; | |
6956 | ||
6957 | /* Exclude directories that the linker is known to search. */ | |
0ad5835e | 6958 | if (linker |
00dcee0c | 6959 | && IS_DIR_SEPARATOR (path[0]) |
48ff801b | 6960 | && ((cp - path == 6 |
ba78087b | 6961 | && filename_ncmp (path + 1, "lib", 3) == 0) |
48ff801b | 6962 | || (cp - path == 10 |
ba78087b | 6963 | && filename_ncmp (path + 1, "usr", 3) == 0 |
00dcee0c | 6964 | && IS_DIR_SEPARATOR (path[4]) |
ba78087b | 6965 | && filename_ncmp (path + 5, "lib", 3) == 0))) |
ed1f651b RS |
6966 | return 0; |
6967 | ||
6968 | return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode)); | |
6969 | } | |
512b62fb JM |
6970 | |
6971 | /* Set up the various global variables to indicate that we're processing | |
6972 | the input file named FILENAME. */ | |
6973 | ||
b856c15d | 6974 | void |
1d088dee | 6975 | set_input (const char *filename) |
512b62fb | 6976 | { |
b3694847 | 6977 | const char *p; |
512b62fb | 6978 | |
6afbc885 JM |
6979 | gcc_input_filename = filename; |
6980 | input_filename_length = strlen (gcc_input_filename); | |
6981 | input_basename = lbasename (gcc_input_filename); | |
512b62fb JM |
6982 | |
6983 | /* Find a suffix starting with the last period, | |
6984 | and set basename_length to exclude that suffix. */ | |
6985 | basename_length = strlen (input_basename); | |
ea414c97 | 6986 | suffixed_basename_length = basename_length; |
512b62fb | 6987 | p = input_basename + basename_length; |
d25a45d4 KH |
6988 | while (p != input_basename && *p != '.') |
6989 | --p; | |
512b62fb JM |
6990 | if (*p == '.' && p != input_basename) |
6991 | { | |
6992 | basename_length = p - input_basename; | |
6993 | input_suffix = p + 1; | |
6994 | } | |
6995 | else | |
6996 | input_suffix = ""; | |
589005ff | 6997 | |
99f78cdd | 6998 | /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then |
6afbc885 | 6999 | we will need to do a stat on the gcc_input_filename. The |
99f78cdd IR |
7000 | INPUT_STAT_SET signals that the stat is needed. */ |
7001 | input_stat_set = 0; | |
512b62fb | 7002 | } |
ed1f651b RS |
7003 | \f |
7004 | /* On fatal signals, delete all the temporary files. */ | |
7005 | ||
7006 | static void | |
2dec80c7 | 7007 | fatal_signal (int signum) |
ed1f651b RS |
7008 | { |
7009 | signal (signum, SIG_DFL); | |
7010 | delete_failure_queue (); | |
7011 | delete_temp_files (); | |
7012 | /* Get the same signal again, this time not handled, | |
7013 | so its normal effect occurs. */ | |
7014 | kill (getpid (), signum); | |
7015 | } | |
7016 | ||
2153915d AO |
7017 | /* Compare the contents of the two files named CMPFILE[0] and |
7018 | CMPFILE[1]. Return zero if they're identical, nonzero | |
7019 | otherwise. */ | |
7020 | ||
7021 | static int | |
7022 | compare_files (char *cmpfile[]) | |
7023 | { | |
7024 | int ret = 0; | |
7025 | FILE *temp[2] = { NULL, NULL }; | |
7026 | int i; | |
7027 | ||
7028 | #if HAVE_MMAP_FILE | |
7029 | { | |
7030 | size_t length[2]; | |
7031 | void *map[2] = { NULL, NULL }; | |
7032 | ||
7033 | for (i = 0; i < 2; i++) | |
7034 | { | |
7035 | struct stat st; | |
7036 | ||
7037 | if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode)) | |
7038 | { | |
7039 | error ("%s: could not determine length of compare-debug file %s", | |
6afbc885 | 7040 | gcc_input_filename, cmpfile[i]); |
2153915d AO |
7041 | ret = 1; |
7042 | break; | |
7043 | } | |
7044 | ||
7045 | length[i] = st.st_size; | |
7046 | } | |
7047 | ||
7048 | if (!ret && length[0] != length[1]) | |
7049 | { | |
6afbc885 | 7050 | error ("%s: -fcompare-debug failure (length)", gcc_input_filename); |
2153915d AO |
7051 | ret = 1; |
7052 | } | |
7053 | ||
7054 | if (!ret) | |
7055 | for (i = 0; i < 2; i++) | |
7056 | { | |
7057 | int fd = open (cmpfile[i], O_RDONLY); | |
7058 | if (fd < 0) | |
7059 | { | |
7060 | error ("%s: could not open compare-debug file %s", | |
6afbc885 | 7061 | gcc_input_filename, cmpfile[i]); |
2153915d AO |
7062 | ret = 1; |
7063 | break; | |
7064 | } | |
7065 | ||
7066 | map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0); | |
7067 | close (fd); | |
7068 | ||
7069 | if (map[i] == (void *) MAP_FAILED) | |
7070 | { | |
7071 | ret = -1; | |
7072 | break; | |
7073 | } | |
7074 | } | |
7075 | ||
7076 | if (!ret) | |
7077 | { | |
7078 | if (memcmp (map[0], map[1], length[0]) != 0) | |
7079 | { | |
6afbc885 | 7080 | error ("%s: -fcompare-debug failure", gcc_input_filename); |
2153915d AO |
7081 | ret = 1; |
7082 | } | |
7083 | } | |
7084 | ||
7085 | for (i = 0; i < 2; i++) | |
7086 | if (map[i]) | |
e7aae3e8 | 7087 | munmap ((caddr_t) map[i], length[i]); |
2153915d AO |
7088 | |
7089 | if (ret >= 0) | |
7090 | return ret; | |
7091 | ||
7092 | ret = 0; | |
7093 | } | |
7094 | #endif | |
7095 | ||
7096 | for (i = 0; i < 2; i++) | |
7097 | { | |
7098 | temp[i] = fopen (cmpfile[i], "r"); | |
7099 | if (!temp[i]) | |
7100 | { | |
7101 | error ("%s: could not open compare-debug file %s", | |
6afbc885 | 7102 | gcc_input_filename, cmpfile[i]); |
2153915d AO |
7103 | ret = 1; |
7104 | break; | |
7105 | } | |
7106 | } | |
7107 | ||
7108 | if (!ret && temp[0] && temp[1]) | |
7109 | for (;;) | |
7110 | { | |
7111 | int c0, c1; | |
7112 | c0 = fgetc (temp[0]); | |
7113 | c1 = fgetc (temp[1]); | |
7114 | ||
7115 | if (c0 != c1) | |
7116 | { | |
7117 | error ("%s: -fcompare-debug failure", | |
6afbc885 | 7118 | gcc_input_filename); |
2153915d AO |
7119 | ret = 1; |
7120 | break; | |
7121 | } | |
7122 | ||
7123 | if (c0 == EOF) | |
7124 | break; | |
7125 | } | |
7126 | ||
7127 | for (i = 1; i >= 0; i--) | |
7128 | { | |
7129 | if (temp[i]) | |
7130 | fclose (temp[i]); | |
7131 | } | |
7132 | ||
7133 | return ret; | |
7134 | } | |
7135 | ||
9376dd63 DM |
7136 | driver::driver (bool can_finalize, bool debug) : |
7137 | explicit_link_files (NULL), | |
7138 | decoded_options (NULL) | |
7139 | { | |
7140 | env.init (can_finalize, debug); | |
7141 | } | |
7142 | ||
7143 | driver::~driver () | |
7144 | { | |
7145 | XDELETEVEC (explicit_link_files); | |
7146 | XDELETEVEC (decoded_options); | |
7147 | } | |
7148 | ||
742a072a DM |
7149 | /* driver::main is implemented as a series of driver:: method calls. */ |
7150 | ||
7151 | int | |
7152 | driver::main (int argc, char **argv) | |
7153 | { | |
7154 | bool early_exit; | |
7155 | ||
7156 | set_progname (argv[0]); | |
7157 | expand_at_files (&argc, &argv); | |
7158 | decode_argv (argc, const_cast <const char **> (argv)); | |
7159 | global_initializations (); | |
7160 | build_multilib_strings (); | |
7161 | set_up_specs (); | |
7162 | putenv_COLLECT_GCC (argv[0]); | |
7163 | maybe_putenv_COLLECT_LTO_WRAPPER (); | |
fc8b3540 | 7164 | maybe_putenv_OFFLOAD_TARGETS (); |
742a072a DM |
7165 | handle_unrecognized_options (); |
7166 | ||
7167 | if (!maybe_print_and_exit ()) | |
7168 | return 0; | |
7169 | ||
7170 | early_exit = prepare_infiles (); | |
7171 | if (early_exit) | |
7172 | return get_exit_code (); | |
7173 | ||
7174 | do_spec_on_infiles (); | |
7175 | maybe_run_linker (argv[0]); | |
7176 | final_actions (); | |
7177 | return get_exit_code (); | |
7178 | } | |
7179 | ||
7180 | /* Locate the final component of argv[0] after any leading path, and set | |
7181 | the program name accordingly. */ | |
7182 | ||
7183 | void | |
7184 | driver::set_progname (const char *argv0) const | |
7185 | { | |
7186 | const char *p = argv0 + strlen (argv0); | |
7187 | while (p != argv0 && !IS_DIR_SEPARATOR (p[-1])) | |
509781a4 | 7188 | --p; |
6afbc885 | 7189 | progname = p; |
ed1f651b | 7190 | |
6afbc885 | 7191 | xmalloc_set_program_name (progname); |
742a072a | 7192 | } |
e1a132c6 | 7193 | |
742a072a DM |
7194 | /* Expand any @ files within the command-line args, |
7195 | setting at_file_supplied if any were expanded. */ | |
7196 | ||
7197 | void | |
7198 | driver::expand_at_files (int *argc, char ***argv) const | |
7199 | { | |
7200 | char **old_argv = *argv; | |
7201 | ||
7202 | expandargv (argc, argv); | |
9d530538 | 7203 | |
2091ff66 | 7204 | /* Determine if any expansions were made. */ |
742a072a | 7205 | if (*argv != old_argv) |
2091ff66 | 7206 | at_file_supplied = true; |
742a072a | 7207 | } |
2091ff66 | 7208 | |
742a072a DM |
7209 | /* Decode the command-line arguments from argc/argv into the |
7210 | decoded_options array. */ | |
7211 | ||
7212 | void | |
7213 | driver::decode_argv (int argc, const char **argv) | |
7214 | { | |
a7d0d30f JM |
7215 | /* Register the language-independent parameters. */ |
7216 | global_init_params (); | |
7217 | finish_params (); | |
7218 | ||
d6874f56 | 7219 | init_opts_obstack (); |
a7d0d30f | 7220 | init_options_struct (&global_options, &global_options_set); |
a75bfaa6 | 7221 | |
742a072a | 7222 | decode_cmdline_options_to_array (argc, argv, |
60cf253a JM |
7223 | CL_DRIVER, |
7224 | &decoded_options, &decoded_options_count); | |
742a072a DM |
7225 | } |
7226 | ||
7227 | /* Perform various initializations and setup. */ | |
14c7833c | 7228 | |
742a072a | 7229 | void |
acbb0489 | 7230 | driver::global_initializations () |
742a072a | 7231 | { |
98a3dad4 | 7232 | /* Unlock the stdio streams. */ |
2653bb0c | 7233 | unlock_std_streams (); |
98a3dad4 | 7234 | |
191bf464 | 7235 | gcc_init_libintl (); |
ab87f8c8 | 7236 | |
6afbc885 | 7237 | diagnostic_initialize (global_dc, 0); |
97aa8bb6 | 7238 | diagnostic_color_init (global_dc); |
ccbc132f RM |
7239 | |
7240 | #ifdef GCC_DRIVER_HOST_INITIALIZATION | |
7241 | /* Perform host dependent initialization when needed. */ | |
7242 | GCC_DRIVER_HOST_INITIALIZATION; | |
7243 | #endif | |
7244 | ||
6afbc885 | 7245 | if (atexit (delete_temp_files) != 0) |
40fecdd6 | 7246 | fatal_error (input_location, "atexit failed"); |
6afbc885 | 7247 | |
ed1f651b | 7248 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) |
2dec80c7 | 7249 | signal (SIGINT, fatal_signal); |
2a353d3a | 7250 | #ifdef SIGHUP |
ed1f651b | 7251 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) |
2dec80c7 | 7252 | signal (SIGHUP, fatal_signal); |
2a353d3a | 7253 | #endif |
ed1f651b | 7254 | if (signal (SIGTERM, SIG_IGN) != SIG_IGN) |
2dec80c7 | 7255 | signal (SIGTERM, fatal_signal); |
ed1f651b RS |
7256 | #ifdef SIGPIPE |
7257 | if (signal (SIGPIPE, SIG_IGN) != SIG_IGN) | |
2dec80c7 | 7258 | signal (SIGPIPE, fatal_signal); |
ed1f651b | 7259 | #endif |
798bdf70 | 7260 | #ifdef SIGCHLD |
0bf679a3 BK |
7261 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will |
7262 | receive the signal. A different setting is inheritable */ | |
7263 | signal (SIGCHLD, SIG_DFL); | |
798bdf70 | 7264 | #endif |
ed1f651b | 7265 | |
d423df48 JJ |
7266 | /* Parsing and gimplification sometimes need quite large stack. |
7267 | Increase stack size limits if possible. */ | |
7268 | stack_limit_increase (64 * 1024 * 1024); | |
7269 | ||
f3226a90 JT |
7270 | /* Allocate the argument vector. */ |
7271 | alloc_args (); | |
ed1f651b RS |
7272 | |
7273 | obstack_init (&obstack); | |
742a072a DM |
7274 | } |
7275 | ||
7276 | /* Build multilib_select, et. al from the separate lines that make up each | |
7277 | multilib selection. */ | |
ed1f651b | 7278 | |
742a072a DM |
7279 | void |
7280 | driver::build_multilib_strings () const | |
7281 | { | |
ffd86336 | 7282 | { |
742a072a | 7283 | const char *p; |
3b304f5b | 7284 | const char *const *q = multilib_raw; |
961b7009 | 7285 | int need_space; |
ffd86336 JW |
7286 | |
7287 | obstack_init (&multilib_obstack); | |
0f41302f | 7288 | while ((p = *q++) != (char *) 0) |
ffd86336 JW |
7289 | obstack_grow (&multilib_obstack, p, strlen (p)); |
7290 | ||
7291 | obstack_1grow (&multilib_obstack, 0); | |
7973fd2a | 7292 | multilib_select = XOBFINISH (&multilib_obstack, const char *); |
961b7009 MM |
7293 | |
7294 | q = multilib_matches_raw; | |
7295 | while ((p = *q++) != (char *) 0) | |
7296 | obstack_grow (&multilib_obstack, p, strlen (p)); | |
7297 | ||
7298 | obstack_1grow (&multilib_obstack, 0); | |
7973fd2a | 7299 | multilib_matches = XOBFINISH (&multilib_obstack, const char *); |
961b7009 | 7300 | |
0a8d6618 BC |
7301 | q = multilib_exclusions_raw; |
7302 | while ((p = *q++) != (char *) 0) | |
d25a45d4 | 7303 | obstack_grow (&multilib_obstack, p, strlen (p)); |
0a8d6618 BC |
7304 | |
7305 | obstack_1grow (&multilib_obstack, 0); | |
7973fd2a | 7306 | multilib_exclusions = XOBFINISH (&multilib_obstack, const char *); |
9218435e | 7307 | |
e7f49d92 TG |
7308 | q = multilib_reuse_raw; |
7309 | while ((p = *q++) != (char *) 0) | |
7310 | obstack_grow (&multilib_obstack, p, strlen (p)); | |
7311 | ||
7312 | obstack_1grow (&multilib_obstack, 0); | |
7313 | multilib_reuse = XOBFINISH (&multilib_obstack, const char *); | |
7314 | ||
961b7009 | 7315 | need_space = FALSE; |
742a072a | 7316 | for (size_t i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++) |
961b7009 MM |
7317 | { |
7318 | if (need_space) | |
7319 | obstack_1grow (&multilib_obstack, ' '); | |
7320 | obstack_grow (&multilib_obstack, | |
7321 | multilib_defaults_raw[i], | |
7322 | strlen (multilib_defaults_raw[i])); | |
7323 | need_space = TRUE; | |
7324 | } | |
7325 | ||
7326 | obstack_1grow (&multilib_obstack, 0); | |
7973fd2a | 7327 | multilib_defaults = XOBFINISH (&multilib_obstack, const char *); |
ffd86336 | 7328 | } |
742a072a DM |
7329 | } |
7330 | ||
7331 | /* Set up the spec-handling machinery. */ | |
7332 | ||
7333 | void | |
7334 | driver::set_up_specs () const | |
7335 | { | |
fc8b3540 | 7336 | const char *spec_machine_suffix; |
742a072a DM |
7337 | char *specs_file; |
7338 | size_t i; | |
ffd86336 | 7339 | |
8faf4a68 JW |
7340 | #ifdef INIT_ENVIRONMENT |
7341 | /* Set up any other necessary machine specific environment variables. */ | |
47d33318 | 7342 | xputenv (INIT_ENVIRONMENT); |
8faf4a68 JW |
7343 | #endif |
7344 | ||
ed1f651b RS |
7345 | /* Make a table of what switches there are (switches, n_switches). |
7346 | Make a table of specified input files (infiles, n_infiles). | |
7347 | Decode switches that are handled locally. */ | |
7348 | ||
60cf253a | 7349 | process_command (decoded_options_count, decoded_options); |
ed1f651b RS |
7350 | |
7351 | /* Initialize the vector of specs to just the default. | |
7352 | This means one element containing 0s, as a terminator. */ | |
7353 | ||
e1e4cdc4 | 7354 | compilers = XNEWVAR (struct compiler, sizeof default_compilers); |
703ad42b | 7355 | memcpy (compilers, default_compilers, sizeof default_compilers); |
ed1f651b RS |
7356 | n_compilers = n_default_compilers; |
7357 | ||
7358 | /* Read specs from a file if there is one. */ | |
7359 | ||
fc8b3540 IV |
7360 | machine_suffix = concat (spec_host_machine, dir_separator_str, spec_version, |
7361 | accel_dir_suffix, dir_separator_str, NULL); | |
d4f2852f | 7362 | just_machine_suffix = concat (spec_machine, dir_separator_str, NULL); |
ed1f651b | 7363 | |
00dcee0c | 7364 | specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true); |
ed1f651b RS |
7365 | /* Read the specs file unless it is a default one. */ |
7366 | if (specs_file != 0 && strcmp (specs_file, "specs")) | |
d168aaee | 7367 | read_specs (specs_file, true, false); |
20df0482 MM |
7368 | else |
7369 | init_spec (); | |
841faeed | 7370 | |
fc8b3540 IV |
7371 | #ifdef ACCEL_COMPILER |
7372 | spec_machine_suffix = machine_suffix; | |
7373 | #else | |
7374 | spec_machine_suffix = just_machine_suffix; | |
7375 | #endif | |
7376 | ||
7377 | /* We need to check standard_exec_prefix/spec_machine_suffix/specs | |
3ac63d94 | 7378 | for any override of as, ld and libraries. */ |
e1e4cdc4 | 7379 | specs_file = (char *) alloca (strlen (standard_exec_prefix) |
fc8b3540 | 7380 | + strlen (spec_machine_suffix) + sizeof ("specs")); |
5bb67e36 | 7381 | strcpy (specs_file, standard_exec_prefix); |
fc8b3540 | 7382 | strcat (specs_file, spec_machine_suffix); |
5bb67e36 RK |
7383 | strcat (specs_file, "specs"); |
7384 | if (access (specs_file, R_OK) == 0) | |
d168aaee | 7385 | read_specs (specs_file, true, false); |
9218435e | 7386 | |
7816bea0 DJ |
7387 | /* Process any configure-time defaults specified for the command line |
7388 | options, via OPTION_DEFAULT_SPECS. */ | |
7389 | for (i = 0; i < ARRAY_SIZE (option_default_specs); i++) | |
7390 | do_option_spec (option_default_specs[i].name, | |
7391 | option_default_specs[i].spec); | |
7392 | ||
3bd6d4c4 AO |
7393 | /* Process DRIVER_SELF_SPECS, adding any new options to the end |
7394 | of the command line. */ | |
7395 | ||
7396 | for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++) | |
7397 | do_self_spec (driver_self_specs[i]); | |
7398 | ||
4977bab6 ZW |
7399 | /* If not cross-compiling, look for executables in the standard |
7400 | places. */ | |
7401 | if (*cross_compile == '0') | |
004fd4d5 | 7402 | { |
2296d164 RK |
7403 | if (*md_exec_prefix) |
7404 | { | |
7405 | add_prefix (&exec_prefixes, md_exec_prefix, "GCC", | |
1a5d37a1 | 7406 | PREFIX_PRIORITY_LAST, 0, 0); |
2296d164 | 7407 | } |
4977bab6 ZW |
7408 | } |
7409 | ||
71c0e7fc | 7410 | /* Process sysroot_suffix_spec. */ |
e7f13528 | 7411 | if (*sysroot_suffix_spec != 0 |
28b4fc51 | 7412 | && !no_sysroot_suffix |
e7f13528 GP |
7413 | && do_spec_2 (sysroot_suffix_spec) == 0) |
7414 | { | |
9771b263 | 7415 | if (argbuf.length () > 1) |
ab532386 | 7416 | error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC"); |
9771b263 DN |
7417 | else if (argbuf.length () == 1) |
7418 | target_sysroot_suffix = xstrdup (argbuf.last ()); | |
e7f13528 GP |
7419 | } |
7420 | ||
380e5ca4 MM |
7421 | #ifdef HAVE_LD_SYSROOT |
7422 | /* Pass the --sysroot option to the linker, if it supports that. If | |
7423 | there is a sysroot_suffix_spec, it has already been processed by | |
7424 | this point, so target_system_root really is the system root we | |
7425 | should be using. */ | |
7426 | if (target_system_root) | |
7427 | { | |
7428 | obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) ")); | |
7429 | obstack_grow0 (&obstack, link_spec, strlen (link_spec)); | |
d168aaee | 7430 | set_spec ("link", XOBFINISH (&obstack, const char *), false); |
380e5ca4 MM |
7431 | } |
7432 | #endif | |
7433 | ||
71c0e7fc | 7434 | /* Process sysroot_hdrs_suffix_spec. */ |
e7f13528 | 7435 | if (*sysroot_hdrs_suffix_spec != 0 |
28b4fc51 | 7436 | && !no_sysroot_suffix |
e7f13528 GP |
7437 | && do_spec_2 (sysroot_hdrs_suffix_spec) == 0) |
7438 | { | |
9771b263 | 7439 | if (argbuf.length () > 1) |
ab532386 | 7440 | error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC"); |
9771b263 DN |
7441 | else if (argbuf.length () == 1) |
7442 | target_sysroot_hdrs_suffix = xstrdup (argbuf.last ()); | |
e7f13528 GP |
7443 | } |
7444 | ||
4977bab6 ZW |
7445 | /* Look for startfiles in the standard places. */ |
7446 | if (*startfile_prefix_spec != 0 | |
7447 | && do_spec_2 (startfile_prefix_spec) == 0 | |
7448 | && do_spec_1 (" ", 0, NULL) == 0) | |
7449 | { | |
5b634ee0 | 7450 | const char *arg; |
4977bab6 | 7451 | int ndx; |
9771b263 | 7452 | FOR_EACH_VEC_ELT (argbuf, ndx, arg) |
5b634ee0 | 7453 | add_sysrooted_prefix (&startfile_prefixes, arg, "BINUTILS", |
1a5d37a1 | 7454 | PREFIX_PRIORITY_LAST, 0, 1); |
4977bab6 ZW |
7455 | } |
7456 | /* We should eventually get rid of all these and stick to | |
7457 | startfile_prefix_spec exclusively. */ | |
7458 | else if (*cross_compile == '0' || target_system_root) | |
7459 | { | |
2296d164 | 7460 | if (*md_startfile_prefix) |
4977bab6 | 7461 | add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix, |
1a5d37a1 | 7462 | "GCC", PREFIX_PRIORITY_LAST, 0, 1); |
004fd4d5 | 7463 | |
2296d164 | 7464 | if (*md_startfile_prefix_1) |
4977bab6 | 7465 | add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1, |
1a5d37a1 | 7466 | "GCC", PREFIX_PRIORITY_LAST, 0, 1); |
607a4f7d | 7467 | |
4dbc7773 ILT |
7468 | /* If standard_startfile_prefix is relative, base it on |
7469 | standard_exec_prefix. This lets us move the installed tree | |
7470 | as a unit. If GCC_EXEC_PREFIX is defined, base | |
0d037580 DJ |
7471 | standard_startfile_prefix on that as well. |
7472 | ||
7473 | If the prefix is relative, only search it for native compilers; | |
7474 | otherwise we will search a directory containing host libraries. */ | |
3dce1408 | 7475 | if (IS_ABSOLUTE_PATH (standard_startfile_prefix)) |
4977bab6 ZW |
7476 | add_sysrooted_prefix (&startfile_prefixes, |
7477 | standard_startfile_prefix, "BINUTILS", | |
1a5d37a1 | 7478 | PREFIX_PRIORITY_LAST, 0, 1); |
0d037580 | 7479 | else if (*cross_compile == '0') |
4dbc7773 | 7480 | { |
48ff801b | 7481 | add_prefix (&startfile_prefixes, |
b8698a0f L |
7482 | concat (gcc_exec_prefix |
7483 | ? gcc_exec_prefix : standard_exec_prefix, | |
7484 | machine_suffix, | |
d4f2852f | 7485 | standard_startfile_prefix, NULL), |
1a5d37a1 | 7486 | NULL, PREFIX_PRIORITY_LAST, 0, 1); |
9218435e | 7487 | } |
4dbc7773 | 7488 | |
f4c0a303 CD |
7489 | /* Sysrooted prefixes are relocated because target_system_root is |
7490 | also relocated by gcc_exec_prefix. */ | |
656c7a3a AL |
7491 | if (*standard_startfile_prefix_1) |
7492 | add_sysrooted_prefix (&startfile_prefixes, | |
7493 | standard_startfile_prefix_1, "BINUTILS", | |
1a5d37a1 | 7494 | PREFIX_PRIORITY_LAST, 0, 1); |
656c7a3a AL |
7495 | if (*standard_startfile_prefix_2) |
7496 | add_sysrooted_prefix (&startfile_prefixes, | |
7497 | standard_startfile_prefix_2, "BINUTILS", | |
1a5d37a1 | 7498 | PREFIX_PRIORITY_LAST, 0, 1); |
004fd4d5 | 7499 | } |
343f59d9 | 7500 | |
8607048d TT |
7501 | /* Process any user specified specs in the order given on the command |
7502 | line. */ | |
742a072a | 7503 | for (struct user_specs *uptr = user_specs_head; uptr; uptr = uptr->next) |
8607048d | 7504 | { |
5bbcd587 | 7505 | char *filename = find_a_file (&startfile_prefixes, uptr->filename, |
00dcee0c | 7506 | R_OK, true); |
d168aaee | 7507 | read_specs (filename ? filename : uptr->filename, false, true); |
8607048d TT |
7508 | } |
7509 | ||
84f405a1 JJ |
7510 | /* Process any user self specs. */ |
7511 | { | |
7512 | struct spec_list *sl; | |
7513 | for (sl = specs; sl; sl = sl->next) | |
7514 | if (sl->name_len == sizeof "self_spec" - 1 | |
7515 | && !strcmp (sl->name, "self_spec")) | |
7516 | do_self_spec (*sl->ptr_spec); | |
7517 | } | |
7518 | ||
7519 | if (compare_debug) | |
7520 | { | |
7521 | enum save_temps save; | |
7522 | ||
7523 | if (!compare_debug_second) | |
7524 | { | |
7525 | n_switches_debug_check[1] = n_switches; | |
7526 | n_switches_alloc_debug_check[1] = n_switches_alloc; | |
7527 | switches_debug_check[1] = XDUPVEC (struct switchstr, switches, | |
7528 | n_switches_alloc); | |
7529 | ||
7530 | do_self_spec ("%:compare-debug-self-opt()"); | |
7531 | n_switches_debug_check[0] = n_switches; | |
7532 | n_switches_alloc_debug_check[0] = n_switches_alloc; | |
7533 | switches_debug_check[0] = switches; | |
7534 | ||
7535 | n_switches = n_switches_debug_check[1]; | |
7536 | n_switches_alloc = n_switches_alloc_debug_check[1]; | |
7537 | switches = switches_debug_check[1]; | |
7538 | } | |
7539 | ||
7540 | /* Avoid crash when computing %j in this early. */ | |
7541 | save = save_temps_flag; | |
7542 | save_temps_flag = SAVE_TEMPS_NONE; | |
7543 | ||
7544 | compare_debug = -compare_debug; | |
7545 | do_self_spec ("%:compare-debug-self-opt()"); | |
7546 | ||
7547 | save_temps_flag = save; | |
7548 | ||
7549 | if (!compare_debug_second) | |
7550 | { | |
7551 | n_switches_debug_check[1] = n_switches; | |
7552 | n_switches_alloc_debug_check[1] = n_switches_alloc; | |
7553 | switches_debug_check[1] = switches; | |
7554 | compare_debug = -compare_debug; | |
7555 | n_switches = n_switches_debug_check[0]; | |
7556 | n_switches_alloc = n_switches_debug_check[0]; | |
7557 | switches = switches_debug_check[0]; | |
7558 | } | |
7559 | } | |
7560 | ||
7561 | ||
e8601ecb JW |
7562 | /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */ |
7563 | if (gcc_exec_prefix) | |
fc8b3540 IV |
7564 | gcc_exec_prefix = concat (gcc_exec_prefix, spec_host_machine, |
7565 | dir_separator_str, spec_version, | |
7566 | accel_dir_suffix, dir_separator_str, NULL); | |
004fd4d5 | 7567 | |
ed1f651b RS |
7568 | /* Now we have the specs. |
7569 | Set the `valid' bits for switches that match anything in any spec. */ | |
7570 | ||
7571 | validate_all_switches (); | |
7572 | ||
60103a34 DE |
7573 | /* Now that we have the switches and the specs, set |
7574 | the subdirectory based on the options. */ | |
7575 | set_multilib_dir (); | |
742a072a DM |
7576 | } |
7577 | ||
7578 | /* Set up to remember the pathname of gcc and any options | |
7579 | needed for collect. We use argv[0] instead of progname because | |
7580 | we need the complete pathname. */ | |
60103a34 | 7581 | |
742a072a DM |
7582 | void |
7583 | driver::putenv_COLLECT_GCC (const char *argv0) const | |
7584 | { | |
d7f09764 DN |
7585 | obstack_init (&collect_obstack); |
7586 | obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1); | |
742a072a | 7587 | obstack_grow (&collect_obstack, argv0, strlen (argv0) + 1); |
d7f09764 | 7588 | xputenv (XOBFINISH (&collect_obstack, char *)); |
742a072a | 7589 | } |
d7f09764 | 7590 | |
742a072a DM |
7591 | /* Set up to remember the pathname of the lto wrapper. */ |
7592 | ||
7593 | void | |
7594 | driver::maybe_putenv_COLLECT_LTO_WRAPPER () const | |
7595 | { | |
7596 | char *lto_wrapper_file; | |
d7f09764 | 7597 | |
117cb2bc JJ |
7598 | if (have_c) |
7599 | lto_wrapper_file = NULL; | |
7600 | else | |
7601 | lto_wrapper_file = find_a_file (&exec_prefixes, "lto-wrapper", | |
7602 | X_OK, false); | |
de9a793e | 7603 | if (lto_wrapper_file) |
d7f09764 | 7604 | { |
3c27ce4c | 7605 | lto_wrapper_file = convert_white_space (lto_wrapper_file); |
de9a793e | 7606 | lto_wrapper_spec = lto_wrapper_file; |
d7f09764 DN |
7607 | obstack_init (&collect_obstack); |
7608 | obstack_grow (&collect_obstack, "COLLECT_LTO_WRAPPER=", | |
7609 | sizeof ("COLLECT_LTO_WRAPPER=") - 1); | |
7610 | obstack_grow (&collect_obstack, lto_wrapper_spec, | |
7611 | strlen (lto_wrapper_spec) + 1); | |
7612 | xputenv (XOBFINISH (&collect_obstack, char *)); | |
7613 | } | |
7614 | ||
742a072a | 7615 | } |
ed1f651b | 7616 | |
fc8b3540 IV |
7617 | /* Set up to remember the names of offload targets. */ |
7618 | ||
7619 | void | |
7620 | driver::maybe_putenv_OFFLOAD_TARGETS () const | |
7621 | { | |
64186aad | 7622 | if (offload_targets && offload_targets[0] != '\0') |
fc8b3540 IV |
7623 | { |
7624 | obstack_grow (&collect_obstack, "OFFLOAD_TARGET_NAMES=", | |
7625 | sizeof ("OFFLOAD_TARGET_NAMES=") - 1); | |
64186aad TS |
7626 | obstack_grow (&collect_obstack, offload_targets, |
7627 | strlen (offload_targets) + 1); | |
fc8b3540 IV |
7628 | xputenv (XOBFINISH (&collect_obstack, char *)); |
7629 | } | |
c713ddc0 BS |
7630 | |
7631 | free (offload_targets); | |
64186aad | 7632 | offload_targets = NULL; |
fc8b3540 IV |
7633 | } |
7634 | ||
93ebf1fd DM |
7635 | /* Helper function for driver::handle_unrecognized_options. |
7636 | ||
7637 | Given an unrecognized option BAD_OPT (without the leading dash), | |
7638 | locate the closest reasonable matching option (again, without the | |
7639 | leading dash), or NULL. */ | |
7640 | ||
7641 | static const char * | |
7642 | suggest_option (const char *bad_opt) | |
7643 | { | |
7644 | const cl_option *best_option = NULL; | |
7645 | edit_distance_t best_distance = MAX_EDIT_DISTANCE; | |
7646 | ||
7647 | for (unsigned int i = 0; i < cl_options_count; i++) | |
7648 | { | |
7649 | edit_distance_t dist = levenshtein_distance (bad_opt, | |
7650 | cl_options[i].opt_text + 1); | |
7651 | if (dist < best_distance) | |
7652 | { | |
7653 | best_distance = dist; | |
7654 | best_option = &cl_options[i]; | |
7655 | } | |
7656 | } | |
7657 | ||
7658 | if (!best_option) | |
7659 | return NULL; | |
7660 | ||
7661 | /* If more than half of the letters were misspelled, the suggestion is | |
7662 | likely to be meaningless. */ | |
7663 | if (best_option) | |
7664 | { | |
7665 | unsigned int cutoff = MAX (strlen (bad_opt), | |
7666 | strlen (best_option->opt_text + 1)) / 2; | |
7667 | if (best_distance > cutoff) | |
7668 | return NULL; | |
7669 | } | |
7670 | ||
7671 | return best_option->opt_text + 1; | |
7672 | } | |
7673 | ||
742a072a DM |
7674 | /* Reject switches that no pass was interested in. */ |
7675 | ||
7676 | void | |
7677 | driver::handle_unrecognized_options () const | |
7678 | { | |
7679 | for (size_t i = 0; (int) i < n_switches; i++) | |
ab87f8c8 | 7680 | if (! switches[i].validated) |
93ebf1fd DM |
7681 | { |
7682 | const char *hint = suggest_option (switches[i].part1); | |
7683 | if (hint) | |
7684 | error ("unrecognized command line option %<-%s%>;" | |
7685 | " did you mean %<-%s%>?", | |
7686 | switches[i].part1, hint); | |
7687 | else | |
7688 | error ("unrecognized command line option %<-%s%>", | |
7689 | switches[i].part1); | |
7690 | } | |
742a072a | 7691 | } |
ed1f651b | 7692 | |
742a072a DM |
7693 | /* Handle the various -print-* options, returning 0 if the driver |
7694 | should exit, or nonzero if the driver should continue. */ | |
6a9e290e | 7695 | |
742a072a DM |
7696 | int |
7697 | driver::maybe_print_and_exit () const | |
7698 | { | |
2628b9d3 DE |
7699 | if (print_search_dirs) |
7700 | { | |
f4c0a303 CD |
7701 | printf (_("install: %s%s\n"), |
7702 | gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix, | |
7703 | gcc_exec_prefix ? "" : machine_suffix); | |
00dcee0c AM |
7704 | printf (_("programs: %s\n"), |
7705 | build_search_list (&exec_prefixes, "", false, false)); | |
7706 | printf (_("libraries: %s\n"), | |
7707 | build_search_list (&startfile_prefixes, "", false, true)); | |
9257393c | 7708 | return (0); |
2628b9d3 DE |
7709 | } |
7710 | ||
6a9e290e | 7711 | if (print_file_name) |
2dcb563f | 7712 | { |
6a9e290e | 7713 | printf ("%s\n", find_file (print_file_name)); |
9257393c | 7714 | return (0); |
2dcb563f RS |
7715 | } |
7716 | ||
6a9e290e RK |
7717 | if (print_prog_name) |
7718 | { | |
b78e932d L |
7719 | if (use_ld != NULL && ! strcmp (print_prog_name, "ld")) |
7720 | { | |
026c3cfd | 7721 | /* Append USE_LD to the default linker. */ |
b78e932d L |
7722 | #ifdef DEFAULT_LINKER |
7723 | char *ld; | |
7724 | # ifdef HAVE_HOST_EXECUTABLE_SUFFIX | |
7725 | int len = (sizeof (DEFAULT_LINKER) | |
7726 | - sizeof (HOST_EXECUTABLE_SUFFIX)); | |
7727 | ld = NULL; | |
7728 | if (len > 0) | |
7729 | { | |
7730 | char *default_linker = xstrdup (DEFAULT_LINKER); | |
7731 | /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains | |
7732 | HOST_EXECUTABLE_SUFFIX. */ | |
7733 | if (! strcmp (&default_linker[len], HOST_EXECUTABLE_SUFFIX)) | |
7734 | { | |
7735 | default_linker[len] = '\0'; | |
7736 | ld = concat (default_linker, use_ld, | |
7737 | HOST_EXECUTABLE_SUFFIX, NULL); | |
7738 | } | |
7739 | } | |
7740 | if (ld == NULL) | |
7741 | # endif | |
7742 | ld = concat (DEFAULT_LINKER, use_ld, NULL); | |
7743 | if (access (ld, X_OK) == 0) | |
7744 | { | |
7745 | printf ("%s\n", ld); | |
7746 | return (0); | |
7747 | } | |
7748 | #endif | |
7749 | print_prog_name = concat (print_prog_name, use_ld, NULL); | |
7750 | } | |
5bbcd587 | 7751 | char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0); |
6a9e290e | 7752 | printf ("%s\n", (newname ? newname : print_prog_name)); |
9257393c | 7753 | return (0); |
6a9e290e | 7754 | } |
ed1f651b | 7755 | |
60103a34 DE |
7756 | if (print_multi_lib) |
7757 | { | |
7758 | print_multilib_info (); | |
9257393c | 7759 | return (0); |
60103a34 DE |
7760 | } |
7761 | ||
7762 | if (print_multi_directory) | |
7763 | { | |
7764 | if (multilib_dir == NULL) | |
7765 | printf (".\n"); | |
7766 | else | |
7767 | printf ("%s\n", multilib_dir); | |
9257393c | 7768 | return (0); |
60103a34 DE |
7769 | } |
7770 | ||
e0cdc09f MK |
7771 | if (print_multiarch) |
7772 | { | |
7773 | if (multiarch_dir == NULL) | |
7774 | printf ("\n"); | |
7775 | else | |
7776 | printf ("%s\n", multiarch_dir); | |
7777 | return (0); | |
7778 | } | |
7779 | ||
3def1397 VP |
7780 | if (print_sysroot) |
7781 | { | |
7782 | if (target_system_root) | |
7783 | { | |
7784 | if (target_sysroot_suffix) | |
7785 | printf ("%s%s\n", target_system_root, target_sysroot_suffix); | |
7786 | else | |
7787 | printf ("%s\n", target_system_root); | |
7788 | } | |
7789 | return (0); | |
7790 | } | |
7791 | ||
5bbcd587 JJ |
7792 | if (print_multi_os_directory) |
7793 | { | |
7794 | if (multilib_os_dir == NULL) | |
7795 | printf (".\n"); | |
7796 | else | |
7797 | printf ("%s\n", multilib_os_dir); | |
7798 | return (0); | |
7799 | } | |
7800 | ||
14da6073 JM |
7801 | if (print_sysroot_headers_suffix) |
7802 | { | |
7803 | if (*sysroot_hdrs_suffix_spec) | |
7804 | { | |
dc5bbad3 JM |
7805 | printf("%s\n", (target_sysroot_hdrs_suffix |
7806 | ? target_sysroot_hdrs_suffix | |
7807 | : "")); | |
14da6073 JM |
7808 | return (0); |
7809 | } | |
7810 | else | |
7811 | /* The error status indicates that only one set of fixed | |
7812 | headers should be built. */ | |
40fecdd6 JM |
7813 | fatal_error (input_location, |
7814 | "not configured with sysroot headers suffix"); | |
14da6073 JM |
7815 | } |
7816 | ||
b8468bc7 NC |
7817 | if (print_help_list) |
7818 | { | |
7819 | display_help (); | |
7820 | ||
7821 | if (! verbose_flag) | |
7822 | { | |
5e4adfba | 7823 | printf (_("\nFor bug reporting instructions, please see:\n")); |
a976603e | 7824 | printf ("%s.\n", bug_report_url); |
9218435e | 7825 | |
9257393c | 7826 | return (0); |
b8468bc7 NC |
7827 | } |
7828 | ||
7829 | /* We do not exit here. Instead we have created a fake input file | |
7830 | called 'help-dummy' which needs to be compiled, and we pass this | |
033505fc RW |
7831 | on the various sub-processes, along with the --help switch. |
7832 | Ensure their output appears after ours. */ | |
7833 | fputc ('\n', stdout); | |
7834 | fflush (stdout); | |
b8468bc7 | 7835 | } |
9218435e | 7836 | |
41fd0f9b RAE |
7837 | if (print_version) |
7838 | { | |
6afbc885 | 7839 | printf (_("%s %s%s\n"), progname, pkgversion_string, |
41fd0f9b | 7840 | version_string); |
21fa2a29 | 7841 | printf ("Copyright %s 2016 Free Software Foundation, Inc.\n", |
41fd0f9b RAE |
7842 | _("(C)")); |
7843 | fputs (_("This is free software; see the source for copying conditions. There is NO\n\ | |
7844 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"), | |
7845 | stdout); | |
7846 | if (! verbose_flag) | |
7847 | return 0; | |
7848 | ||
7849 | /* We do not exit here. We use the same mechanism of --help to print | |
7850 | the version of the sub-processes. */ | |
7851 | fputc ('\n', stdout); | |
7852 | fflush (stdout); | |
7853 | } | |
7854 | ||
ed1f651b RS |
7855 | if (verbose_flag) |
7856 | { | |
dc10fd96 | 7857 | print_configuration (stderr); |
ed1f651b | 7858 | if (n_infiles == 0) |
9257393c | 7859 | return (0); |
ed1f651b RS |
7860 | } |
7861 | ||
742a072a DM |
7862 | return 1; |
7863 | } | |
7864 | ||
7865 | /* Figure out what to do with each input file. | |
7866 | Return true if we need to exit early from "main", false otherwise. */ | |
7867 | ||
7868 | bool | |
7869 | driver::prepare_infiles () | |
7870 | { | |
7871 | size_t i; | |
7872 | int lang_n_infiles = 0; | |
7873 | ||
a2a05b0a | 7874 | if (n_infiles == added_libraries) |
40fecdd6 | 7875 | fatal_error (input_location, "no input files"); |
ed1f651b | 7876 | |
4df47bca | 7877 | if (seen_error ()) |
742a072a DM |
7878 | /* Early exit needed from main. */ |
7879 | return true; | |
4df47bca | 7880 | |
ed1f651b RS |
7881 | /* Make a place to record the compiler output file names |
7882 | that correspond to the input files. */ | |
7883 | ||
f271358e | 7884 | i = n_infiles; |
e37cda9b | 7885 | i += lang_specific_extra_outfiles; |
5ed6ace5 | 7886 | outfiles = XCNEWVEC (const char *, i); |
ed1f651b RS |
7887 | |
7888 | /* Record which files were specified explicitly as link input. */ | |
7889 | ||
d900f77d | 7890 | explicit_link_files = XCNEWVEC (char, n_infiles); |
ed1f651b | 7891 | |
56b721c5 | 7892 | combine_inputs = have_o || flag_wpa; |
0855eab7 CT |
7893 | |
7894 | for (i = 0; (int) i < n_infiles; i++) | |
d1bd0ded | 7895 | { |
0855eab7 | 7896 | const char *name = infiles[i].name; |
7904f95f EC |
7897 | struct compiler *compiler = lookup_compiler (name, |
7898 | strlen (name), | |
0855eab7 | 7899 | infiles[i].language); |
7904f95f | 7900 | |
0855eab7 CT |
7901 | if (compiler && !(compiler->combinable)) |
7902 | combine_inputs = false; | |
7904f95f | 7903 | |
0855eab7 CT |
7904 | if (lang_n_infiles > 0 && compiler != input_file_compiler |
7905 | && infiles[i].language && infiles[i].language[0] != '*') | |
7906 | infiles[i].incompiler = compiler; | |
7907 | else if (compiler) | |
7908 | { | |
7909 | lang_n_infiles++; | |
7910 | input_file_compiler = compiler; | |
7911 | infiles[i].incompiler = compiler; | |
7912 | } | |
7913 | else | |
7914 | { | |
7915 | /* Since there is no compiler for this input file, assume it is a | |
9cf737f8 | 7916 | linker file. */ |
0855eab7 CT |
7917 | explicit_link_files[i] = 1; |
7918 | infiles[i].incompiler = NULL; | |
7919 | } | |
7920 | infiles[i].compiled = false; | |
7921 | infiles[i].preprocessed = false; | |
d1bd0ded | 7922 | } |
953ff289 | 7923 | |
de19a50e | 7924 | if (!combine_inputs && have_c && have_o && lang_n_infiles > 1) |
40fecdd6 JM |
7925 | fatal_error (input_location, |
7926 | "cannot specify -o with -c, -S or -E with multiple files"); | |
0855eab7 | 7927 | |
742a072a DM |
7928 | /* No early exit needed from main; we can continue. */ |
7929 | return false; | |
7930 | } | |
7931 | ||
7932 | /* Run the spec machinery on each input file. */ | |
7933 | ||
7934 | void | |
7935 | driver::do_spec_on_infiles () const | |
7936 | { | |
7937 | size_t i; | |
7938 | ||
0855eab7 | 7939 | for (i = 0; (int) i < n_infiles; i++) |
ed1f651b | 7940 | { |
ed1f651b RS |
7941 | int this_file_error = 0; |
7942 | ||
7943 | /* Tell do_spec what to substitute for %i. */ | |
7944 | ||
ed1f651b | 7945 | input_file_number = i; |
512b62fb | 7946 | set_input (infiles[i].name); |
ed1f651b | 7947 | |
0855eab7 CT |
7948 | if (infiles[i].compiled) |
7949 | continue; | |
7950 | ||
ed1f651b RS |
7951 | /* Use the same thing in %o, unless cp->spec says otherwise. */ |
7952 | ||
6afbc885 | 7953 | outfiles[i] = gcc_input_filename; |
ed1f651b RS |
7954 | |
7955 | /* Figure out which compiler from the file's suffix. */ | |
7956 | ||
c3224d6f RG |
7957 | input_file_compiler |
7958 | = lookup_compiler (infiles[i].name, input_filename_length, | |
7959 | infiles[i].language); | |
589005ff | 7960 | |
a9374841 | 7961 | if (input_file_compiler) |
ed1f651b RS |
7962 | { |
7963 | /* Ok, we found an applicable compiler. Run its spec. */ | |
ed1f651b | 7964 | |
a9374841 | 7965 | if (input_file_compiler->spec[0] == '#') |
d644be7b ZW |
7966 | { |
7967 | error ("%s: %s compiler not installed on this system", | |
6afbc885 | 7968 | gcc_input_filename, &input_file_compiler->spec[1]); |
d644be7b ZW |
7969 | this_file_error = 1; |
7970 | } | |
7971 | else | |
7972 | { | |
742a072a DM |
7973 | int value; |
7974 | ||
2153915d AO |
7975 | if (compare_debug) |
7976 | { | |
04695783 | 7977 | free (debug_check_temp_file[0]); |
2153915d AO |
7978 | debug_check_temp_file[0] = NULL; |
7979 | ||
04695783 | 7980 | free (debug_check_temp_file[1]); |
2153915d AO |
7981 | debug_check_temp_file[1] = NULL; |
7982 | } | |
7983 | ||
d644be7b | 7984 | value = do_spec (input_file_compiler->spec); |
0855eab7 | 7985 | infiles[i].compiled = true; |
d644be7b | 7986 | if (value < 0) |
b21292d0 | 7987 | this_file_error = 1; |
2153915d AO |
7988 | else if (compare_debug && debug_check_temp_file[0]) |
7989 | { | |
7990 | if (verbose_flag) | |
2dec80c7 | 7991 | inform (0, "recompiling with -fcompare-debug"); |
2153915d AO |
7992 | |
7993 | compare_debug = -compare_debug; | |
7994 | n_switches = n_switches_debug_check[1]; | |
efe5e5a0 | 7995 | n_switches_alloc = n_switches_alloc_debug_check[1]; |
2153915d AO |
7996 | switches = switches_debug_check[1]; |
7997 | ||
7998 | value = do_spec (input_file_compiler->spec); | |
7999 | ||
8000 | compare_debug = -compare_debug; | |
8001 | n_switches = n_switches_debug_check[0]; | |
efe5e5a0 | 8002 | n_switches_alloc = n_switches_alloc_debug_check[0]; |
2153915d AO |
8003 | switches = switches_debug_check[0]; |
8004 | ||
8005 | if (value < 0) | |
8006 | { | |
8007 | error ("during -fcompare-debug recompilation"); | |
8008 | this_file_error = 1; | |
8009 | } | |
8010 | ||
8011 | gcc_assert (debug_check_temp_file[1] | |
ba78087b KT |
8012 | && filename_cmp (debug_check_temp_file[0], |
8013 | debug_check_temp_file[1])); | |
2153915d AO |
8014 | |
8015 | if (verbose_flag) | |
2dec80c7 | 8016 | inform (0, "comparing final insns dumps"); |
2153915d AO |
8017 | |
8018 | if (compare_files (debug_check_temp_file)) | |
8019 | this_file_error = 1; | |
8020 | } | |
8021 | ||
8022 | if (compare_debug) | |
8023 | { | |
04695783 | 8024 | free (debug_check_temp_file[0]); |
2153915d AO |
8025 | debug_check_temp_file[0] = NULL; |
8026 | ||
04695783 | 8027 | free (debug_check_temp_file[1]); |
2153915d AO |
8028 | debug_check_temp_file[1] = NULL; |
8029 | } | |
d644be7b | 8030 | } |
ed1f651b RS |
8031 | } |
8032 | ||
8033 | /* If this file's name does not contain a recognized suffix, | |
8034 | record it as explicit linker input. */ | |
8035 | ||
8036 | else | |
8037 | explicit_link_files[i] = 1; | |
8038 | ||
8039 | /* Clear the delete-on-failure queue, deleting the files in it | |
8040 | if this compilation failed. */ | |
8041 | ||
8042 | if (this_file_error) | |
8043 | { | |
8044 | delete_failure_queue (); | |
6afbc885 | 8045 | errorcount++; |
ed1f651b RS |
8046 | } |
8047 | /* If this compilation succeeded, don't delete those files later. */ | |
8048 | clear_failure_queue (); | |
8049 | } | |
8050 | ||
817a8255 EC |
8051 | /* Reset the input file name to the first compile/object file name, for use |
8052 | with %b in LINK_SPEC. We use the first input file that we can find | |
7904f95f | 8053 | a compiler to compile it instead of using infiles.language since for |
817a8255 | 8054 | languages other than C we use aliases that we then lookup later. */ |
512b62fb | 8055 | if (n_infiles > 0) |
817a8255 EC |
8056 | { |
8057 | int i; | |
8058 | ||
8059 | for (i = 0; i < n_infiles ; i++) | |
42113d6b RG |
8060 | if (infiles[i].incompiler |
8061 | || (infiles[i].language && infiles[i].language[0] != '*')) | |
817a8255 EC |
8062 | { |
8063 | set_input (infiles[i].name); | |
8064 | break; | |
8065 | } | |
8066 | } | |
512b62fb | 8067 | |
6afbc885 | 8068 | if (!seen_error ()) |
15c5edb9 TT |
8069 | { |
8070 | /* Make sure INPUT_FILE_NUMBER points to first available open | |
8071 | slot. */ | |
8072 | input_file_number = n_infiles; | |
8073 | if (lang_specific_pre_link ()) | |
6afbc885 | 8074 | errorcount++; |
15c5edb9 | 8075 | } |
742a072a DM |
8076 | } |
8077 | ||
8078 | /* If we have to run the linker, do it now. */ | |
8079 | ||
8080 | void | |
8081 | driver::maybe_run_linker (const char *argv0) const | |
8082 | { | |
8083 | size_t i; | |
8084 | int linker_was_run = 0; | |
8085 | int num_linker_inputs; | |
f271358e | 8086 | |
17211ab5 GK |
8087 | /* Determine if there are any linker input files. */ |
8088 | num_linker_inputs = 0; | |
8089 | for (i = 0; (int) i < n_infiles; i++) | |
8090 | if (explicit_link_files[i] || outfiles[i] != NULL) | |
8091 | num_linker_inputs++; | |
8092 | ||
ed1f651b RS |
8093 | /* Run ld to link all the compiler output files. */ |
8094 | ||
6afbc885 | 8095 | if (num_linker_inputs > 0 && !seen_error () && print_subprocess_help < 2) |
ed1f651b RS |
8096 | { |
8097 | int tmp = execution_count; | |
117cb2bc JJ |
8098 | |
8099 | if (! have_c) | |
8100 | { | |
55b46574 RO |
8101 | #if HAVE_LTO_PLUGIN > 0 |
8102 | #if HAVE_LTO_PLUGIN == 2 | |
117cb2bc | 8103 | const char *fno_use_linker_plugin = "fno-use-linker-plugin"; |
96bdf9b4 | 8104 | #else |
117cb2bc | 8105 | const char *fuse_linker_plugin = "fuse-linker-plugin"; |
55b46574 | 8106 | #endif |
96bdf9b4 | 8107 | #endif |
b3865ca9 | 8108 | |
117cb2bc JJ |
8109 | /* We'll use ld if we can't find collect2. */ |
8110 | if (! strcmp (linker_name_spec, "collect2")) | |
8111 | { | |
8112 | char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false); | |
8113 | if (s == NULL) | |
8114 | linker_name_spec = "ld"; | |
8115 | } | |
d7f09764 | 8116 | |
55b46574 RO |
8117 | #if HAVE_LTO_PLUGIN > 0 |
8118 | #if HAVE_LTO_PLUGIN == 2 | |
117cb2bc JJ |
8119 | if (!switch_matches (fno_use_linker_plugin, |
8120 | fno_use_linker_plugin | |
8121 | + strlen (fno_use_linker_plugin), 0)) | |
96bdf9b4 | 8122 | #else |
117cb2bc JJ |
8123 | if (switch_matches (fuse_linker_plugin, |
8124 | fuse_linker_plugin | |
8125 | + strlen (fuse_linker_plugin), 0)) | |
96bdf9b4 | 8126 | #endif |
117cb2bc | 8127 | { |
3c27ce4c JY |
8128 | char *temp_spec = find_a_file (&exec_prefixes, |
8129 | LTOPLUGINSONAME, R_OK, | |
8130 | false); | |
8131 | if (!temp_spec) | |
40fecdd6 JM |
8132 | fatal_error (input_location, |
8133 | "-fuse-linker-plugin, but %s not found", | |
117cb2bc | 8134 | LTOPLUGINSONAME); |
3c27ce4c | 8135 | linker_plugin_file_spec = convert_white_space (temp_spec); |
117cb2bc | 8136 | } |
55b46574 | 8137 | #endif |
742a072a | 8138 | lto_gcc_spec = argv0; |
117cb2bc | 8139 | } |
d7f09764 | 8140 | |
b3865ca9 RS |
8141 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables |
8142 | for collect. */ | |
00dcee0c AM |
8143 | putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false); |
8144 | putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true); | |
b3865ca9 | 8145 | |
a0f87454 RS |
8146 | if (print_subprocess_help == 1) |
8147 | { | |
8148 | printf (_("\nLinker options\n==============\n\n")); | |
8149 | printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\"" | |
8150 | " to the linker.\n\n")); | |
8151 | fflush (stdout); | |
8152 | } | |
742a072a | 8153 | int value = do_spec (link_command_spec); |
ed1f651b | 8154 | if (value < 0) |
6afbc885 | 8155 | errorcount = 1; |
ed1f651b RS |
8156 | linker_was_run = (tmp != execution_count); |
8157 | } | |
8158 | ||
ed1f651b RS |
8159 | /* If options said don't run linker, |
8160 | complain about input files to be given to the linker. */ | |
8161 | ||
6afbc885 | 8162 | if (! linker_was_run && !seen_error ()) |
d25a45d4 | 8163 | for (i = 0; (int) i < n_infiles; i++) |
01e4dd0d KH |
8164 | if (explicit_link_files[i] |
8165 | && !(infiles[i].language && infiles[i].language[0] == '*')) | |
2dec80c7 JM |
8166 | warning (0, "%s: linker input file unused because linking not done", |
8167 | outfiles[i]); | |
742a072a DM |
8168 | } |
8169 | ||
8170 | /* The end of "main". */ | |
ed1f651b | 8171 | |
742a072a DM |
8172 | void |
8173 | driver::final_actions () const | |
8174 | { | |
ed1f651b RS |
8175 | /* Delete some or all of the temporary files we made. */ |
8176 | ||
6afbc885 | 8177 | if (seen_error ()) |
ed1f651b RS |
8178 | delete_failure_queue (); |
8179 | delete_temp_files (); | |
8180 | ||
b8468bc7 NC |
8181 | if (print_help_list) |
8182 | { | |
5e4adfba | 8183 | printf (("\nFor bug reporting instructions, please see:\n")); |
a976603e | 8184 | printf ("%s\n", bug_report_url); |
b8468bc7 | 8185 | } |
742a072a | 8186 | } |
9218435e | 8187 | |
742a072a DM |
8188 | /* Determine what the exit code of the driver should be. */ |
8189 | ||
8190 | int | |
8191 | driver::get_exit_code () const | |
8192 | { | |
14a774a9 | 8193 | return (signal_count != 0 ? 2 |
6afbc885 | 8194 | : seen_error () ? (pass_exit_codes ? greatest_status : 1) |
14a774a9 | 8195 | : 0); |
ed1f651b RS |
8196 | } |
8197 | ||
8198 | /* Find the proper compilation spec for the file name NAME, | |
004fd4d5 | 8199 | whose length is LENGTH. LANGUAGE is the specified language, |
e5e809f4 | 8200 | or 0 if this file is to be passed to the linker. */ |
ed1f651b RS |
8201 | |
8202 | static struct compiler * | |
1d088dee | 8203 | lookup_compiler (const char *name, size_t length, const char *language) |
ed1f651b RS |
8204 | { |
8205 | struct compiler *cp; | |
8206 | ||
3ac63d94 | 8207 | /* If this was specified by the user to be a linker input, indicate that. */ |
e5e809f4 JL |
8208 | if (language != 0 && language[0] == '*') |
8209 | return 0; | |
8210 | ||
8211 | /* Otherwise, look for the language, if one is spec'd. */ | |
ed1f651b RS |
8212 | if (language != 0) |
8213 | { | |
8214 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
e5e809f4 JL |
8215 | if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language)) |
8216 | return cp; | |
8217 | ||
ed1f651b | 8218 | error ("language %s not recognized", language); |
e5e809f4 | 8219 | return 0; |
ed1f651b RS |
8220 | } |
8221 | ||
8222 | /* Look for a suffix. */ | |
8223 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
8224 | { | |
4cf3301c RS |
8225 | if (/* The suffix `-' matches only the file name `-'. */ |
8226 | (!strcmp (cp->suffix, "-") && !strcmp (name, "-")) | |
e5e809f4 JL |
8227 | || (strlen (cp->suffix) < length |
8228 | /* See if the suffix matches the end of NAME. */ | |
e5e809f4 JL |
8229 | && !strcmp (cp->suffix, |
8230 | name + length - strlen (cp->suffix)) | |
e5e809f4 | 8231 | )) |
589005ff | 8232 | break; |
03bf1c28 | 8233 | } |
e5e809f4 | 8234 | |
03bf1c28 | 8235 | #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM) |
a1105617 | 8236 | /* Look again, but case-insensitively this time. */ |
03bf1c28 MK |
8237 | if (cp < compilers) |
8238 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
8239 | { | |
8240 | if (/* The suffix `-' matches only the file name `-'. */ | |
8241 | (!strcmp (cp->suffix, "-") && !strcmp (name, "-")) | |
8242 | || (strlen (cp->suffix) < length | |
8243 | /* See if the suffix matches the end of NAME. */ | |
8244 | && ((!strcmp (cp->suffix, | |
8245 | name + length - strlen (cp->suffix)) | |
8246 | || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")) | |
8247 | && !strcasecmp (cp->suffix, | |
8248 | name + length - strlen (cp->suffix))) | |
8249 | )) | |
8250 | break; | |
8251 | } | |
8252 | #endif | |
8253 | ||
03bf1c28 MK |
8254 | if (cp >= compilers) |
8255 | { | |
ea414c97 ZW |
8256 | if (cp->spec[0] != '@') |
8257 | /* A non-alias entry: return it. */ | |
8258 | return cp; | |
9218435e | 8259 | |
ea414c97 ZW |
8260 | /* An alias entry maps a suffix to a language. |
8261 | Search for the language; pass 0 for NAME and LENGTH | |
8262 | to avoid infinite recursion if language not found. */ | |
6496a589 | 8263 | return lookup_compiler (NULL, 0, cp->spec + 1); |
ed1f651b | 8264 | } |
ed1f651b RS |
8265 | return 0; |
8266 | } | |
8267 | \f | |
ed1f651b | 8268 | static char * |
1d088dee | 8269 | save_string (const char *s, int len) |
ed1f651b | 8270 | { |
5ed6ace5 | 8271 | char *result = XNEWVEC (char, len + 1); |
ed1f651b | 8272 | |
da61dec9 | 8273 | memcpy (result, s, len); |
ed1f651b RS |
8274 | result[len] = 0; |
8275 | return result; | |
8276 | } | |
8277 | ||
d991c721 | 8278 | void |
1d088dee | 8279 | pfatal_with_name (const char *name) |
ed1f651b | 8280 | { |
ab87f8c8 JL |
8281 | perror_with_name (name); |
8282 | delete_temp_files (); | |
8283 | exit (1); | |
ed1f651b RS |
8284 | } |
8285 | ||
8286 | static void | |
1d088dee | 8287 | perror_with_name (const char *name) |
ed1f651b | 8288 | { |
bdc6b402 | 8289 | error ("%s: %m", name); |
ed1f651b | 8290 | } |
ed1f651b | 8291 | \f |
4977bab6 | 8292 | static inline void |
d168aaee | 8293 | validate_switches_from_spec (const char *spec, bool user) |
4977bab6 ZW |
8294 | { |
8295 | const char *p = spec; | |
8296 | char c; | |
8297 | while ((c = *p++)) | |
8298 | if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{'))) | |
8299 | /* We have a switch spec. */ | |
d168aaee | 8300 | p = validate_switches (p + 1, user); |
4977bab6 ZW |
8301 | } |
8302 | ||
ed1f651b | 8303 | static void |
1d088dee | 8304 | validate_all_switches (void) |
ed1f651b RS |
8305 | { |
8306 | struct compiler *comp; | |
b3865ca9 | 8307 | struct spec_list *spec; |
ed1f651b | 8308 | |
ea414c97 | 8309 | for (comp = compilers; comp->spec; comp++) |
d168aaee | 8310 | validate_switches_from_spec (comp->spec, false); |
ed1f651b | 8311 | |
3ac63d94 | 8312 | /* Look through the linked list of specs read from the specs file. */ |
d25a45d4 | 8313 | for (spec = specs; spec; spec = spec->next) |
d168aaee | 8314 | validate_switches_from_spec (*spec->ptr_spec, spec->user_p); |
b3865ca9 | 8315 | |
d168aaee | 8316 | validate_switches_from_spec (link_command_spec, false); |
ed1f651b RS |
8317 | } |
8318 | ||
8319 | /* Look at the switch-name that comes after START | |
8320 | and mark as valid all supplied switches that match it. */ | |
8321 | ||
4977bab6 | 8322 | static const char * |
d168aaee | 8323 | validate_switches (const char *start, bool user_spec) |
ed1f651b | 8324 | { |
b3694847 | 8325 | const char *p = start; |
4977bab6 ZW |
8326 | const char *atom; |
8327 | size_t len; | |
b3694847 | 8328 | int i; |
4977bab6 ZW |
8329 | bool suffix = false; |
8330 | bool starred = false; | |
1d088dee | 8331 | |
4977bab6 | 8332 | #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0) |
1d088dee | 8333 | |
10ebf5fe | 8334 | next_member: |
4977bab6 ZW |
8335 | SKIP_WHITE (); |
8336 | ||
ed1f651b | 8337 | if (*p == '!') |
4977bab6 | 8338 | p++; |
ed1f651b | 8339 | |
4977bab6 | 8340 | SKIP_WHITE (); |
48137d59 | 8341 | if (*p == '.' || *p == ',') |
4977bab6 | 8342 | suffix = true, p++; |
ed1f651b | 8343 | |
4977bab6 ZW |
8344 | atom = p; |
8345 | while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '=' | |
7a975113 | 8346 | || *p == ',' || *p == '.' || *p == '@') |
d25a45d4 | 8347 | p++; |
4977bab6 | 8348 | len = p - atom; |
ed1f651b | 8349 | |
4977bab6 ZW |
8350 | if (*p == '*') |
8351 | starred = true, p++; | |
8352 | ||
8353 | SKIP_WHITE (); | |
8354 | ||
8355 | if (!suffix) | |
ed1f651b RS |
8356 | { |
8357 | /* Mark all matching switches as valid. */ | |
ed1f651b | 8358 | for (i = 0; i < n_switches; i++) |
4977bab6 | 8359 | if (!strncmp (switches[i].part1, atom, len) |
d168aaee CB |
8360 | && (starred || switches[i].part1[len] == '\0') |
8361 | && (switches[i].known || user_spec)) | |
8362 | switches[i].validated = true; | |
ed1f651b | 8363 | } |
4977bab6 | 8364 | |
5a0ba8c9 LJR |
8365 | if (*p) p++; |
8366 | if (*p && (p[-1] == '|' || p[-1] == '&')) | |
4977bab6 ZW |
8367 | goto next_member; |
8368 | ||
5a0ba8c9 | 8369 | if (*p && p[-1] == ':') |
ed1f651b | 8370 | { |
4977bab6 | 8371 | while (*p && *p != ';' && *p != '}') |
ed1f651b | 8372 | { |
4977bab6 ZW |
8373 | if (*p == '%') |
8374 | { | |
8375 | p++; | |
8376 | if (*p == '{' || *p == '<') | |
d168aaee | 8377 | p = validate_switches (p+1, user_spec); |
4977bab6 | 8378 | else if (p[0] == 'W' && p[1] == '{') |
d168aaee | 8379 | p = validate_switches (p+2, user_spec); |
4977bab6 | 8380 | } |
e17aafd1 GK |
8381 | else |
8382 | p++; | |
ed1f651b | 8383 | } |
4977bab6 | 8384 | |
5a0ba8c9 LJR |
8385 | if (*p) p++; |
8386 | if (*p && p[-1] == ';') | |
4977bab6 | 8387 | goto next_member; |
ed1f651b | 8388 | } |
10ebf5fe | 8389 | |
4977bab6 ZW |
8390 | return p; |
8391 | #undef SKIP_WHITE | |
ed1f651b | 8392 | } |
60103a34 | 8393 | \f |
5bbcd587 JJ |
8394 | struct mdswitchstr |
8395 | { | |
8396 | const char *str; | |
8397 | int len; | |
8398 | }; | |
8399 | ||
8400 | static struct mdswitchstr *mdswitches; | |
8401 | static int n_mdswitches; | |
8402 | ||
961b7009 | 8403 | /* Check whether a particular argument was used. The first time we |
956d6950 | 8404 | canonicalize the switches to keep only the ones we care about. */ |
60103a34 | 8405 | |
9376dd63 | 8406 | class used_arg_t |
60103a34 | 8407 | { |
9376dd63 DM |
8408 | public: |
8409 | int operator () (const char *p, int len); | |
8410 | void finalize (); | |
8411 | ||
8412 | private: | |
3ac63d94 NC |
8413 | struct mswitchstr |
8414 | { | |
3b304f5b ZW |
8415 | const char *str; |
8416 | const char *replace; | |
961b7009 MM |
8417 | int len; |
8418 | int rep_len; | |
8419 | }; | |
8420 | ||
9376dd63 DM |
8421 | mswitchstr *mswitches; |
8422 | int n_mswitches; | |
8423 | ||
8424 | }; | |
8425 | ||
8426 | used_arg_t used_arg; | |
8427 | ||
8428 | int | |
8429 | used_arg_t::operator () (const char *p, int len) | |
8430 | { | |
961b7009 MM |
8431 | int i, j; |
8432 | ||
8433 | if (!mswitches) | |
8434 | { | |
8435 | struct mswitchstr *matches; | |
3b304f5b | 8436 | const char *q; |
c8c2dcdc | 8437 | int cnt = 0; |
961b7009 | 8438 | |
d25a45d4 KH |
8439 | /* Break multilib_matches into the component strings of string |
8440 | and replacement string. */ | |
1a0bdd29 RK |
8441 | for (q = multilib_matches; *q != '\0'; q++) |
8442 | if (*q == ';') | |
961b7009 MM |
8443 | cnt++; |
8444 | ||
e1e4cdc4 KG |
8445 | matches |
8446 | = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt); | |
961b7009 MM |
8447 | i = 0; |
8448 | q = multilib_matches; | |
8449 | while (*q != '\0') | |
8450 | { | |
8451 | matches[i].str = q; | |
8452 | while (*q != ' ') | |
8453 | { | |
8454 | if (*q == '\0') | |
3b5edfee NS |
8455 | { |
8456 | invalid_matches: | |
40fecdd6 | 8457 | fatal_error (input_location, "multilib spec %qs is invalid", |
2dec80c7 | 8458 | multilib_matches); |
3b5edfee | 8459 | } |
961b7009 MM |
8460 | q++; |
8461 | } | |
961b7009 | 8462 | matches[i].len = q - matches[i].str; |
60103a34 | 8463 | |
961b7009 MM |
8464 | matches[i].replace = ++q; |
8465 | while (*q != ';' && *q != '\0') | |
8466 | { | |
8467 | if (*q == ' ') | |
3b5edfee | 8468 | goto invalid_matches; |
961b7009 MM |
8469 | q++; |
8470 | } | |
8471 | matches[i].rep_len = q - matches[i].replace; | |
8472 | i++; | |
83a0c799 ZW |
8473 | if (*q == ';') |
8474 | q++; | |
961b7009 | 8475 | } |
60103a34 | 8476 | |
71591a1d JW |
8477 | /* Now build a list of the replacement string for switches that we care |
8478 | about. Make sure we allocate at least one entry. This prevents | |
8479 | xmalloc from calling fatal, and prevents us from re-executing this | |
8480 | block of code. */ | |
8481 | mswitches | |
5ed6ace5 | 8482 | = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1)); |
961b7009 | 8483 | for (i = 0; i < n_switches; i++) |
3371362c | 8484 | if ((switches[i].live_cond & SWITCH_IGNORE) == 0) |
f645e2bd RS |
8485 | { |
8486 | int xlen = strlen (switches[i].part1); | |
8487 | for (j = 0; j < cnt; j++) | |
8488 | if (xlen == matches[j].len | |
8489 | && ! strncmp (switches[i].part1, matches[j].str, xlen)) | |
8490 | { | |
8491 | mswitches[n_mswitches].str = matches[j].replace; | |
8492 | mswitches[n_mswitches].len = matches[j].rep_len; | |
8493 | mswitches[n_mswitches].replace = (char *) 0; | |
8494 | mswitches[n_mswitches].rep_len = 0; | |
8495 | n_mswitches++; | |
8496 | break; | |
8497 | } | |
8498 | } | |
5bbcd587 JJ |
8499 | |
8500 | /* Add MULTILIB_DEFAULTS switches too, as long as they were not present | |
8501 | on the command line nor any options mutually incompatible with | |
8502 | them. */ | |
8503 | for (i = 0; i < n_mdswitches; i++) | |
8504 | { | |
8505 | const char *r; | |
8506 | ||
59b266b1 | 8507 | for (q = multilib_options; *q != '\0'; *q && q++) |
5bbcd587 JJ |
8508 | { |
8509 | while (*q == ' ') | |
8510 | q++; | |
8511 | ||
8512 | r = q; | |
8513 | while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0 | |
8514 | || strchr (" /", q[mdswitches[i].len]) == NULL) | |
8515 | { | |
8516 | while (*q != ' ' && *q != '/' && *q != '\0') | |
8517 | q++; | |
8518 | if (*q != '/') | |
8519 | break; | |
8520 | q++; | |
8521 | } | |
8522 | ||
8523 | if (*q != ' ' && *q != '\0') | |
8524 | { | |
8525 | while (*r != ' ' && *r != '\0') | |
8526 | { | |
8527 | q = r; | |
8528 | while (*q != ' ' && *q != '/' && *q != '\0') | |
8529 | q++; | |
8530 | ||
8531 | if (used_arg (r, q - r)) | |
8532 | break; | |
8533 | ||
8534 | if (*q != '/') | |
8535 | { | |
8536 | mswitches[n_mswitches].str = mdswitches[i].str; | |
8537 | mswitches[n_mswitches].len = mdswitches[i].len; | |
8538 | mswitches[n_mswitches].replace = (char *) 0; | |
8539 | mswitches[n_mswitches].rep_len = 0; | |
8540 | n_mswitches++; | |
8541 | break; | |
8542 | } | |
8543 | ||
8544 | r = q + 1; | |
8545 | } | |
8546 | break; | |
8547 | } | |
8548 | } | |
8549 | } | |
961b7009 | 8550 | } |
03c42484 | 8551 | |
961b7009 MM |
8552 | for (i = 0; i < n_mswitches; i++) |
8553 | if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len)) | |
8554 | return 1; | |
03c42484 | 8555 | |
961b7009 MM |
8556 | return 0; |
8557 | } | |
03c42484 | 8558 | |
9376dd63 DM |
8559 | void used_arg_t::finalize () |
8560 | { | |
8561 | XDELETEVEC (mswitches); | |
8562 | mswitches = NULL; | |
8563 | n_mswitches = 0; | |
8564 | } | |
8565 | ||
8566 | ||
03c42484 | 8567 | static int |
1d088dee | 8568 | default_arg (const char *p, int len) |
03c42484 | 8569 | { |
5bbcd587 | 8570 | int i; |
e29ef920 | 8571 | |
5bbcd587 JJ |
8572 | for (i = 0; i < n_mdswitches; i++) |
8573 | if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len)) | |
8574 | return 1; | |
03c42484 RK |
8575 | |
8576 | return 0; | |
8577 | } | |
8578 | ||
0a8d6618 BC |
8579 | /* Work out the subdirectory to use based on the options. The format of |
8580 | multilib_select is a list of elements. Each element is a subdirectory | |
8581 | name followed by a list of options followed by a semicolon. The format | |
8582 | of multilib_exclusions is the same, but without the preceding | |
8583 | directory. First gcc will check the exclusions, if none of the options | |
8584 | beginning with an exclamation point are present, and all of the other | |
8585 | options are present, then we will ignore this completely. Passing | |
8586 | that, gcc will consider each multilib_select in turn using the same | |
8587 | rules for matching the options. If a match is found, that subdirectory | |
e0cdc09f MK |
8588 | will be used. |
8589 | A subdirectory name is optionally followed by a colon and the corresponding | |
8590 | multiarch name. */ | |
60103a34 DE |
8591 | |
8592 | static void | |
1d088dee | 8593 | set_multilib_dir (void) |
60103a34 | 8594 | { |
3b304f5b | 8595 | const char *p; |
3ac63d94 | 8596 | unsigned int this_path_len; |
3b304f5b | 8597 | const char *this_path, *this_arg; |
5bbcd587 | 8598 | const char *start, *end; |
03c42484 | 8599 | int not_arg; |
5bbcd587 JJ |
8600 | int ok, ndfltok, first; |
8601 | ||
8602 | n_mdswitches = 0; | |
8603 | start = multilib_defaults; | |
8604 | while (*start == ' ' || *start == '\t') | |
8605 | start++; | |
8606 | while (*start != '\0') | |
8607 | { | |
8608 | n_mdswitches++; | |
8609 | while (*start != ' ' && *start != '\t' && *start != '\0') | |
8610 | start++; | |
8611 | while (*start == ' ' || *start == '\t') | |
8612 | start++; | |
8613 | } | |
8614 | ||
8615 | if (n_mdswitches) | |
8616 | { | |
8617 | int i = 0; | |
8618 | ||
5ed6ace5 | 8619 | mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches); |
5bbcd587 JJ |
8620 | for (start = multilib_defaults; *start != '\0'; start = end + 1) |
8621 | { | |
8622 | while (*start == ' ' || *start == '\t') | |
8623 | start++; | |
8624 | ||
8625 | if (*start == '\0') | |
8626 | break; | |
1d088dee | 8627 | |
5bbcd587 JJ |
8628 | for (end = start + 1; |
8629 | *end != ' ' && *end != '\t' && *end != '\0'; end++) | |
8630 | ; | |
8631 | ||
8632 | obstack_grow (&multilib_obstack, start, end - start); | |
8633 | obstack_1grow (&multilib_obstack, 0); | |
7973fd2a | 8634 | mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *); |
5bbcd587 JJ |
8635 | mdswitches[i++].len = end - start; |
8636 | ||
8637 | if (*end == '\0') | |
8638 | break; | |
8639 | } | |
8640 | } | |
60103a34 | 8641 | |
0a8d6618 BC |
8642 | p = multilib_exclusions; |
8643 | while (*p != '\0') | |
8644 | { | |
8645 | /* Ignore newlines. */ | |
8646 | if (*p == '\n') | |
d25a45d4 KH |
8647 | { |
8648 | ++p; | |
8649 | continue; | |
8650 | } | |
0a8d6618 BC |
8651 | |
8652 | /* Check the arguments. */ | |
8653 | ok = 1; | |
8654 | while (*p != ';') | |
d25a45d4 KH |
8655 | { |
8656 | if (*p == '\0') | |
3b5edfee NS |
8657 | { |
8658 | invalid_exclusions: | |
40fecdd6 | 8659 | fatal_error (input_location, "multilib exclusions %qs is invalid", |
2dec80c7 | 8660 | multilib_exclusions); |
3b5edfee | 8661 | } |
d25a45d4 KH |
8662 | |
8663 | if (! ok) | |
8664 | { | |
8665 | ++p; | |
8666 | continue; | |
8667 | } | |
8668 | ||
8669 | this_arg = p; | |
8670 | while (*p != ' ' && *p != ';') | |
8671 | { | |
8672 | if (*p == '\0') | |
3b5edfee | 8673 | goto invalid_exclusions; |
d25a45d4 KH |
8674 | ++p; |
8675 | } | |
8676 | ||
8677 | if (*this_arg != '!') | |
8678 | not_arg = 0; | |
8679 | else | |
8680 | { | |
8681 | not_arg = 1; | |
8682 | ++this_arg; | |
8683 | } | |
9218435e | 8684 | |
0a8d6618 BC |
8685 | ok = used_arg (this_arg, p - this_arg); |
8686 | if (not_arg) | |
8687 | ok = ! ok; | |
8688 | ||
d25a45d4 KH |
8689 | if (*p == ' ') |
8690 | ++p; | |
8691 | } | |
0a8d6618 BC |
8692 | |
8693 | if (ok) | |
3ac63d94 | 8694 | return; |
0a8d6618 BC |
8695 | |
8696 | ++p; | |
8697 | } | |
8698 | ||
5bbcd587 | 8699 | first = 1; |
0a8d6618 | 8700 | p = multilib_select; |
e7f49d92 TG |
8701 | |
8702 | /* Append multilib reuse rules if any. With those rules, we can reuse | |
8703 | one multilib for certain different options sets. */ | |
8704 | if (strlen (multilib_reuse) > 0) | |
8705 | p = concat (p, multilib_reuse, NULL); | |
8706 | ||
60103a34 DE |
8707 | while (*p != '\0') |
8708 | { | |
8709 | /* Ignore newlines. */ | |
8710 | if (*p == '\n') | |
8711 | { | |
8712 | ++p; | |
8713 | continue; | |
8714 | } | |
8715 | ||
8716 | /* Get the initial path. */ | |
8717 | this_path = p; | |
8718 | while (*p != ' ') | |
8719 | { | |
8720 | if (*p == '\0') | |
3b5edfee NS |
8721 | { |
8722 | invalid_select: | |
40fecdd6 | 8723 | fatal_error (input_location, "multilib select %qs %qs is invalid", |
e7f49d92 | 8724 | multilib_select, multilib_reuse); |
3b5edfee | 8725 | } |
60103a34 DE |
8726 | ++p; |
8727 | } | |
8728 | this_path_len = p - this_path; | |
8729 | ||
8730 | /* Check the arguments. */ | |
03c42484 | 8731 | ok = 1; |
5bbcd587 | 8732 | ndfltok = 1; |
60103a34 DE |
8733 | ++p; |
8734 | while (*p != ';') | |
8735 | { | |
8736 | if (*p == '\0') | |
3b5edfee | 8737 | goto invalid_select; |
60103a34 | 8738 | |
03c42484 | 8739 | if (! ok) |
60103a34 DE |
8740 | { |
8741 | ++p; | |
8742 | continue; | |
8743 | } | |
8744 | ||
8745 | this_arg = p; | |
8746 | while (*p != ' ' && *p != ';') | |
8747 | { | |
8748 | if (*p == '\0') | |
3b5edfee | 8749 | goto invalid_select; |
60103a34 DE |
8750 | ++p; |
8751 | } | |
8752 | ||
03c42484 RK |
8753 | if (*this_arg != '!') |
8754 | not_arg = 0; | |
60103a34 | 8755 | else |
03c42484 RK |
8756 | { |
8757 | not_arg = 1; | |
8758 | ++this_arg; | |
8759 | } | |
8760 | ||
8761 | /* If this is a default argument, we can just ignore it. | |
8762 | This is true even if this_arg begins with '!'. Beginning | |
8763 | with '!' does not mean that this argument is necessarily | |
8764 | inappropriate for this library: it merely means that | |
8765 | there is a more specific library which uses this | |
8766 | argument. If this argument is a default, we need not | |
8767 | consider that more specific library. */ | |
5bbcd587 JJ |
8768 | ok = used_arg (this_arg, p - this_arg); |
8769 | if (not_arg) | |
8770 | ok = ! ok; | |
8771 | ||
8772 | if (! ok) | |
8773 | ndfltok = 0; | |
8774 | ||
8775 | if (default_arg (this_arg, p - this_arg)) | |
8776 | ok = 1; | |
60103a34 DE |
8777 | |
8778 | if (*p == ' ') | |
8779 | ++p; | |
8780 | } | |
8781 | ||
5bbcd587 | 8782 | if (ok && first) |
60103a34 DE |
8783 | { |
8784 | if (this_path_len != 1 | |
8785 | || this_path[0] != '.') | |
8786 | { | |
5ed6ace5 | 8787 | char *new_multilib_dir = XNEWVEC (char, this_path_len + 1); |
5bbcd587 JJ |
8788 | char *q; |
8789 | ||
878f32c3 KG |
8790 | strncpy (new_multilib_dir, this_path, this_path_len); |
8791 | new_multilib_dir[this_path_len] = '\0'; | |
5bbcd587 JJ |
8792 | q = strchr (new_multilib_dir, ':'); |
8793 | if (q != NULL) | |
8794 | *q = '\0'; | |
878f32c3 | 8795 | multilib_dir = new_multilib_dir; |
60103a34 | 8796 | } |
5bbcd587 JJ |
8797 | first = 0; |
8798 | } | |
8799 | ||
8800 | if (ndfltok) | |
8801 | { | |
8802 | const char *q = this_path, *end = this_path + this_path_len; | |
8803 | ||
8804 | while (q < end && *q != ':') | |
8805 | q++; | |
c49d2df6 | 8806 | if (q < end) |
5bbcd587 | 8807 | { |
e0cdc09f MK |
8808 | const char *q2 = q + 1, *ml_end = end; |
8809 | char *new_multilib_os_dir; | |
8810 | ||
8811 | while (q2 < end && *q2 != ':') | |
8812 | q2++; | |
8813 | if (*q2 == ':') | |
8814 | ml_end = q2; | |
646d1bed PG |
8815 | if (ml_end - q == 1) |
8816 | multilib_os_dir = xstrdup ("."); | |
8817 | else | |
8818 | { | |
8819 | new_multilib_os_dir = XNEWVEC (char, ml_end - q); | |
8820 | memcpy (new_multilib_os_dir, q + 1, ml_end - q - 1); | |
8821 | new_multilib_os_dir[ml_end - q - 1] = '\0'; | |
8822 | multilib_os_dir = new_multilib_os_dir; | |
8823 | } | |
e0cdc09f MK |
8824 | |
8825 | if (q2 < end && *q2 == ':') | |
8826 | { | |
8827 | char *new_multiarch_dir = XNEWVEC (char, end - q2); | |
8828 | memcpy (new_multiarch_dir, q2 + 1, end - q2 - 1); | |
8829 | new_multiarch_dir[end - q2 - 1] = '\0'; | |
8830 | multiarch_dir = new_multiarch_dir; | |
8831 | } | |
5bbcd587 JJ |
8832 | break; |
8833 | } | |
60103a34 DE |
8834 | } |
8835 | ||
8836 | ++p; | |
9218435e | 8837 | } |
5bbcd587 JJ |
8838 | |
8839 | if (multilib_dir == NULL && multilib_os_dir != NULL | |
3c40bd65 | 8840 | && strcmp (multilib_os_dir, ".") == 0) |
5bbcd587 | 8841 | { |
b1d5455a | 8842 | free (CONST_CAST (char *, multilib_os_dir)); |
5bbcd587 JJ |
8843 | multilib_os_dir = NULL; |
8844 | } | |
8845 | else if (multilib_dir != NULL && multilib_os_dir == NULL) | |
8846 | multilib_os_dir = multilib_dir; | |
60103a34 DE |
8847 | } |
8848 | ||
8849 | /* Print out the multiple library subdirectory selection | |
8850 | information. This prints out a series of lines. Each line looks | |
8851 | like SUBDIRECTORY;@OPTION@OPTION, with as many options as is | |
8852 | required. Only the desired options are printed out, the negative | |
8853 | matches. The options are print without a leading dash. There are | |
8854 | no spaces to make it easy to use the information in the shell. | |
8855 | Each subdirectory is printed only once. This assumes the ordering | |
0a8d6618 BC |
8856 | generated by the genmultilib script. Also, we leave out ones that match |
8857 | the exclusions. */ | |
60103a34 DE |
8858 | |
8859 | static void | |
1d088dee | 8860 | print_multilib_info (void) |
60103a34 | 8861 | { |
3b304f5b ZW |
8862 | const char *p = multilib_select; |
8863 | const char *last_path = 0, *this_path; | |
03c42484 | 8864 | int skip; |
3ac63d94 | 8865 | unsigned int last_path_len = 0; |
60103a34 DE |
8866 | |
8867 | while (*p != '\0') | |
8868 | { | |
0a8d6618 | 8869 | skip = 0; |
60103a34 DE |
8870 | /* Ignore newlines. */ |
8871 | if (*p == '\n') | |
8872 | { | |
8873 | ++p; | |
8874 | continue; | |
8875 | } | |
8876 | ||
8877 | /* Get the initial path. */ | |
8878 | this_path = p; | |
8879 | while (*p != ' ') | |
8880 | { | |
8881 | if (*p == '\0') | |
3b5edfee NS |
8882 | { |
8883 | invalid_select: | |
40fecdd6 JM |
8884 | fatal_error (input_location, |
8885 | "multilib select %qs is invalid", multilib_select); | |
3b5edfee | 8886 | } |
7904f95f | 8887 | |
60103a34 DE |
8888 | ++p; |
8889 | } | |
8890 | ||
c49d2df6 | 8891 | /* When --disable-multilib was used but target defines |
e0cdc09f MK |
8892 | MULTILIB_OSDIRNAMES, entries starting with .: (and not starting |
8893 | with .:: for multiarch configurations) are there just to find | |
8894 | multilib_os_dir, so skip them from output. */ | |
8895 | if (this_path[0] == '.' && this_path[1] == ':' && this_path[2] != ':') | |
c49d2df6 JJ |
8896 | skip = 1; |
8897 | ||
0a8d6618 BC |
8898 | /* Check for matches with the multilib_exclusions. We don't bother |
8899 | with the '!' in either list. If any of the exclusion rules match | |
8900 | all of its options with the select rule, we skip it. */ | |
d25a45d4 KH |
8901 | { |
8902 | const char *e = multilib_exclusions; | |
8903 | const char *this_arg; | |
0a8d6618 | 8904 | |
d25a45d4 KH |
8905 | while (*e != '\0') |
8906 | { | |
8907 | int m = 1; | |
8908 | /* Ignore newlines. */ | |
8909 | if (*e == '\n') | |
8910 | { | |
8911 | ++e; | |
8912 | continue; | |
8913 | } | |
0a8d6618 | 8914 | |
d25a45d4 KH |
8915 | /* Check the arguments. */ |
8916 | while (*e != ';') | |
8917 | { | |
8918 | const char *q; | |
8919 | int mp = 0; | |
0a8d6618 | 8920 | |
d25a45d4 | 8921 | if (*e == '\0') |
3b5edfee NS |
8922 | { |
8923 | invalid_exclusion: | |
40fecdd6 JM |
8924 | fatal_error (input_location, |
8925 | "multilib exclusion %qs is invalid", | |
2dec80c7 | 8926 | multilib_exclusions); |
3b5edfee | 8927 | } |
9218435e | 8928 | |
d25a45d4 KH |
8929 | if (! m) |
8930 | { | |
8931 | ++e; | |
8932 | continue; | |
8933 | } | |
0a8d6618 | 8934 | |
d25a45d4 | 8935 | this_arg = e; |
9218435e | 8936 | |
d25a45d4 KH |
8937 | while (*e != ' ' && *e != ';') |
8938 | { | |
8939 | if (*e == '\0') | |
3b5edfee | 8940 | goto invalid_exclusion; |
d25a45d4 KH |
8941 | ++e; |
8942 | } | |
0a8d6618 | 8943 | |
d25a45d4 KH |
8944 | q = p + 1; |
8945 | while (*q != ';') | |
8946 | { | |
8947 | const char *arg; | |
8948 | int len = e - this_arg; | |
0a8d6618 | 8949 | |
d25a45d4 | 8950 | if (*q == '\0') |
3b5edfee | 8951 | goto invalid_select; |
0a8d6618 | 8952 | |
d25a45d4 KH |
8953 | arg = q; |
8954 | ||
8955 | while (*q != ' ' && *q != ';') | |
8956 | { | |
8957 | if (*q == '\0') | |
3b5edfee | 8958 | goto invalid_select; |
0a8d6618 | 8959 | ++q; |
d25a45d4 | 8960 | } |
0a8d6618 | 8961 | |
3b5edfee NS |
8962 | if (! strncmp (arg, this_arg, |
8963 | (len < q - arg) ? q - arg : len) | |
8964 | || default_arg (this_arg, e - this_arg)) | |
d25a45d4 KH |
8965 | { |
8966 | mp = 1; | |
8967 | break; | |
8968 | } | |
0a8d6618 | 8969 | |
d25a45d4 KH |
8970 | if (*q == ' ') |
8971 | ++q; | |
8972 | } | |
9218435e | 8973 | |
d25a45d4 KH |
8974 | if (! mp) |
8975 | m = 0; | |
0a8d6618 | 8976 | |
d25a45d4 KH |
8977 | if (*e == ' ') |
8978 | ++e; | |
8979 | } | |
8980 | ||
8981 | if (m) | |
8982 | { | |
8983 | skip = 1; | |
8984 | break; | |
8985 | } | |
8986 | ||
8987 | if (*e != '\0') | |
8988 | ++e; | |
8989 | } | |
8990 | } | |
0a8d6618 BC |
8991 | |
8992 | if (! skip) | |
d25a45d4 KH |
8993 | { |
8994 | /* If this is a duplicate, skip it. */ | |
3b5edfee NS |
8995 | skip = (last_path != 0 |
8996 | && (unsigned int) (p - this_path) == last_path_len | |
ba78087b | 8997 | && ! filename_ncmp (last_path, this_path, last_path_len)); |
60103a34 | 8998 | |
d25a45d4 KH |
8999 | last_path = this_path; |
9000 | last_path_len = p - this_path; | |
0a8d6618 | 9001 | } |
60103a34 | 9002 | |
03c42484 RK |
9003 | /* If this directory requires any default arguments, we can skip |
9004 | it. We will already have printed a directory identical to | |
9005 | this one which does not require that default argument. */ | |
9006 | if (! skip) | |
9007 | { | |
3b304f5b | 9008 | const char *q; |
03c42484 RK |
9009 | |
9010 | q = p + 1; | |
9011 | while (*q != ';') | |
9012 | { | |
3b304f5b | 9013 | const char *arg; |
03c42484 RK |
9014 | |
9015 | if (*q == '\0') | |
3b5edfee | 9016 | goto invalid_select; |
03c42484 RK |
9017 | |
9018 | if (*q == '!') | |
9019 | arg = NULL; | |
9020 | else | |
9021 | arg = q; | |
9022 | ||
9023 | while (*q != ' ' && *q != ';') | |
9024 | { | |
9025 | if (*q == '\0') | |
3b5edfee | 9026 | goto invalid_select; |
03c42484 RK |
9027 | ++q; |
9028 | } | |
9029 | ||
9030 | if (arg != NULL | |
9031 | && default_arg (arg, q - arg)) | |
9032 | { | |
9033 | skip = 1; | |
9034 | break; | |
9035 | } | |
9036 | ||
9037 | if (*q == ' ') | |
9038 | ++q; | |
9039 | } | |
9040 | } | |
9041 | ||
60103a34 DE |
9042 | if (! skip) |
9043 | { | |
3b304f5b | 9044 | const char *p1; |
60103a34 | 9045 | |
5bbcd587 | 9046 | for (p1 = last_path; p1 < p && *p1 != ':'; p1++) |
60103a34 DE |
9047 | putchar (*p1); |
9048 | putchar (';'); | |
9049 | } | |
9050 | ||
9051 | ++p; | |
9052 | while (*p != ';') | |
9053 | { | |
9054 | int use_arg; | |
9055 | ||
9056 | if (*p == '\0') | |
3b5edfee | 9057 | goto invalid_select; |
60103a34 DE |
9058 | |
9059 | if (skip) | |
9060 | { | |
9061 | ++p; | |
9062 | continue; | |
9063 | } | |
9064 | ||
9065 | use_arg = *p != '!'; | |
9066 | ||
9067 | if (use_arg) | |
9068 | putchar ('@'); | |
9069 | ||
9070 | while (*p != ' ' && *p != ';') | |
9071 | { | |
9072 | if (*p == '\0') | |
3b5edfee | 9073 | goto invalid_select; |
60103a34 DE |
9074 | if (use_arg) |
9075 | putchar (*p); | |
9076 | ++p; | |
9077 | } | |
9078 | ||
9079 | if (*p == ' ') | |
9080 | ++p; | |
9081 | } | |
9082 | ||
9083 | if (! skip) | |
961b7009 | 9084 | { |
3ac63d94 | 9085 | /* If there are extra options, print them now. */ |
961b7009 MM |
9086 | if (multilib_extra && *multilib_extra) |
9087 | { | |
9088 | int print_at = TRUE; | |
3b304f5b | 9089 | const char *q; |
961b7009 MM |
9090 | |
9091 | for (q = multilib_extra; *q != '\0'; q++) | |
9092 | { | |
9093 | if (*q == ' ') | |
9094 | print_at = TRUE; | |
9095 | else | |
9096 | { | |
9097 | if (print_at) | |
9098 | putchar ('@'); | |
9099 | putchar (*q); | |
9100 | print_at = FALSE; | |
9101 | } | |
9102 | } | |
9103 | } | |
9218435e | 9104 | |
961b7009 MM |
9105 | putchar ('\n'); |
9106 | } | |
60103a34 DE |
9107 | |
9108 | ++p; | |
9109 | } | |
9110 | } | |
f3226a90 | 9111 | \f |
30d8946b MM |
9112 | /* getenv built-in spec function. |
9113 | ||
ba85c5fd OH |
9114 | Returns the value of the environment variable given by its first argument, |
9115 | concatenated with the second argument. If the variable is not defined, a | |
9116 | fatal error is issued unless such undefs are internally allowed, in which | |
9117 | case the variable name is used as the variable value. */ | |
30d8946b MM |
9118 | |
9119 | static const char * | |
9120 | getenv_spec_function (int argc, const char **argv) | |
9121 | { | |
9376dd63 | 9122 | const char *value; |
ba85c5fd OH |
9123 | const char *varname; |
9124 | ||
5557813a NS |
9125 | char *result; |
9126 | char *ptr; | |
9127 | size_t len; | |
30d8946b MM |
9128 | |
9129 | if (argc != 2) | |
9130 | return NULL; | |
9131 | ||
ba85c5fd OH |
9132 | varname = argv[0]; |
9133 | value = env.get (varname); | |
9134 | ||
9135 | if (!value && spec_undefvar_allowed) | |
9136 | value = varname; | |
9137 | ||
30d8946b | 9138 | if (!value) |
40fecdd6 | 9139 | fatal_error (input_location, |
ba85c5fd | 9140 | "environment variable %qs not defined", varname); |
30d8946b | 9141 | |
5557813a | 9142 | /* We have to escape every character of the environment variable so |
fa10beec RW |
9143 | they are not interpreted as active spec characters. A |
9144 | particularly painful case is when we are reading a variable | |
5557813a NS |
9145 | holding a windows path complete with \ separators. */ |
9146 | len = strlen (value) * 2 + strlen (argv[1]) + 1; | |
e1e4cdc4 | 9147 | result = XNEWVAR (char, len); |
5557813a NS |
9148 | for (ptr = result; *value; ptr += 2) |
9149 | { | |
9150 | ptr[0] = '\\'; | |
9151 | ptr[1] = *value++; | |
9152 | } | |
b8698a0f | 9153 | |
5557813a | 9154 | strcpy (ptr, argv[1]); |
b8698a0f | 9155 | |
5557813a | 9156 | return result; |
30d8946b MM |
9157 | } |
9158 | ||
f3226a90 JT |
9159 | /* if-exists built-in spec function. |
9160 | ||
9161 | Checks to see if the file specified by the absolute pathname in | |
9162 | ARGS exists. Returns that pathname if found. | |
9163 | ||
9164 | The usual use for this function is to check for a library file | |
9165 | (whose name has been expanded with %s). */ | |
9166 | ||
9167 | static const char * | |
1d088dee | 9168 | if_exists_spec_function (int argc, const char **argv) |
f3226a90 JT |
9169 | { |
9170 | /* Must have only one argument. */ | |
3dce1408 | 9171 | if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK)) |
f3226a90 JT |
9172 | return argv[0]; |
9173 | ||
9174 | return NULL; | |
9175 | } | |
152a5a9c JT |
9176 | |
9177 | /* if-exists-else built-in spec function. | |
9178 | ||
9179 | This is like if-exists, but takes an additional argument which | |
9180 | is returned if the first argument does not exist. */ | |
9181 | ||
9182 | static const char * | |
1d088dee | 9183 | if_exists_else_spec_function (int argc, const char **argv) |
152a5a9c JT |
9184 | { |
9185 | /* Must have exactly two arguments. */ | |
9186 | if (argc != 2) | |
9187 | return NULL; | |
9188 | ||
3dce1408 | 9189 | if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK)) |
152a5a9c JT |
9190 | return argv[0]; |
9191 | ||
9192 | return argv[1]; | |
9193 | } | |
3dd53121 | 9194 | |
de5a5fa1 MP |
9195 | /* sanitize built-in spec function. |
9196 | ||
9197 | This returns non-NULL, if sanitizing address, thread or | |
9198 | any of the undefined behavior sanitizers. */ | |
9199 | ||
9200 | static const char * | |
9201 | sanitize_spec_function (int argc, const char **argv) | |
9202 | { | |
9203 | if (argc != 1) | |
9204 | return NULL; | |
9205 | ||
9206 | if (strcmp (argv[0], "address") == 0) | |
fec4842d YG |
9207 | return (flag_sanitize & SANITIZE_USER_ADDRESS) ? "" : NULL; |
9208 | if (strcmp (argv[0], "kernel-address") == 0) | |
9209 | return (flag_sanitize & SANITIZE_KERNEL_ADDRESS) ? "" : NULL; | |
de5a5fa1 MP |
9210 | if (strcmp (argv[0], "thread") == 0) |
9211 | return (flag_sanitize & SANITIZE_THREAD) ? "" : NULL; | |
9212 | if (strcmp (argv[0], "undefined") == 0) | |
85a16bf8 | 9213 | return ((flag_sanitize & (SANITIZE_UNDEFINED | SANITIZE_NONDEFAULT)) |
1c33c9b7 | 9214 | && !flag_sanitize_undefined_trap_on_error) ? "" : NULL; |
9065ada9 JJ |
9215 | if (strcmp (argv[0], "leak") == 0) |
9216 | return ((flag_sanitize | |
9217 | & (SANITIZE_ADDRESS | SANITIZE_LEAK | SANITIZE_THREAD)) | |
9218 | == SANITIZE_LEAK) ? "" : NULL; | |
de5a5fa1 MP |
9219 | return NULL; |
9220 | } | |
9221 | ||
3dd53121 | 9222 | /* replace-outfile built-in spec function. |
ed5b9f96 GK |
9223 | |
9224 | This looks for the first argument in the outfiles array's name and | |
9225 | replaces it with the second argument. */ | |
3dd53121 AP |
9226 | |
9227 | static const char * | |
9228 | replace_outfile_spec_function (int argc, const char **argv) | |
9229 | { | |
9230 | int i; | |
9231 | /* Must have exactly two arguments. */ | |
9232 | if (argc != 2) | |
9233 | abort (); | |
7904f95f | 9234 | |
3dd53121 AP |
9235 | for (i = 0; i < n_infiles; i++) |
9236 | { | |
ba78087b | 9237 | if (outfiles[i] && !filename_cmp (outfiles[i], argv[0])) |
3dd53121 AP |
9238 | outfiles[i] = xstrdup (argv[1]); |
9239 | } | |
9240 | return NULL; | |
9241 | } | |
9242 | ||
2642f659 JH |
9243 | /* remove-outfile built-in spec function. |
9244 | * | |
9245 | * This looks for the first argument in the outfiles array's name and | |
9246 | * removes it. */ | |
9247 | ||
9248 | static const char * | |
9249 | remove_outfile_spec_function (int argc, const char **argv) | |
9250 | { | |
9251 | int i; | |
9252 | /* Must have exactly one argument. */ | |
9253 | if (argc != 1) | |
9254 | abort (); | |
9255 | ||
9256 | for (i = 0; i < n_infiles; i++) | |
9257 | { | |
ba78087b | 9258 | if (outfiles[i] && !filename_cmp (outfiles[i], argv[0])) |
2642f659 JH |
9259 | outfiles[i] = NULL; |
9260 | } | |
9261 | return NULL; | |
9262 | } | |
9263 | ||
7904f95f | 9264 | /* Given two version numbers, compares the two numbers. |
ed5b9f96 GK |
9265 | A version number must match the regular expression |
9266 | ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))* | |
9267 | */ | |
9268 | static int | |
9269 | compare_version_strings (const char *v1, const char *v2) | |
9270 | { | |
9271 | int rresult; | |
9272 | regex_t r; | |
7904f95f | 9273 | |
ed5b9f96 GK |
9274 | if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$", |
9275 | REG_EXTENDED | REG_NOSUB) != 0) | |
9276 | abort (); | |
9277 | rresult = regexec (&r, v1, 0, NULL, 0); | |
9278 | if (rresult == REG_NOMATCH) | |
40fecdd6 | 9279 | fatal_error (input_location, "invalid version number %qs", v1); |
ed5b9f96 GK |
9280 | else if (rresult != 0) |
9281 | abort (); | |
9282 | rresult = regexec (&r, v2, 0, NULL, 0); | |
9283 | if (rresult == REG_NOMATCH) | |
40fecdd6 | 9284 | fatal_error (input_location, "invalid version number %qs", v2); |
ed5b9f96 GK |
9285 | else if (rresult != 0) |
9286 | abort (); | |
9287 | ||
9288 | return strverscmp (v1, v2); | |
9289 | } | |
9290 | ||
9291 | ||
9292 | /* version_compare built-in spec function. | |
9293 | ||
9294 | This takes an argument of the following form: | |
9295 | ||
9296 | <comparison-op> <arg1> [<arg2>] <switch> <result> | |
9297 | ||
9298 | and produces "result" if the comparison evaluates to true, | |
9299 | and nothing if it doesn't. | |
9300 | ||
9301 | The supported <comparison-op> values are: | |
7904f95f | 9302 | |
ed5b9f96 GK |
9303 | >= true if switch is a later (or same) version than arg1 |
9304 | !> opposite of >= | |
9305 | < true if switch is an earlier version than arg1 | |
9306 | !< opposite of < | |
9307 | >< true if switch is arg1 or later, and earlier than arg2 | |
9308 | <> true if switch is earlier than arg1 or is arg2 or later | |
9309 | ||
9310 | If the switch is not present, the condition is false unless | |
9311 | the first character of the <comparison-op> is '!'. | |
9312 | ||
9313 | For example, | |
9314 | %:version-compare(>= 10.3 mmacosx-version-min= -lmx) | |
9315 | adds -lmx if -mmacosx-version-min=10.3.9 was passed. */ | |
9316 | ||
9317 | static const char * | |
9318 | version_compare_spec_function (int argc, const char **argv) | |
9319 | { | |
9320 | int comp1, comp2; | |
9321 | size_t switch_len; | |
9322 | const char *switch_value = NULL; | |
9323 | int nargs = 1, i; | |
9324 | bool result; | |
9325 | ||
9326 | if (argc < 3) | |
40fecdd6 | 9327 | fatal_error (input_location, "too few arguments to %%:version-compare"); |
ed5b9f96 GK |
9328 | if (argv[0][0] == '\0') |
9329 | abort (); | |
9330 | if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!') | |
9331 | nargs = 2; | |
9332 | if (argc != nargs + 3) | |
40fecdd6 | 9333 | fatal_error (input_location, "too many arguments to %%:version-compare"); |
ed5b9f96 GK |
9334 | |
9335 | switch_len = strlen (argv[nargs + 1]); | |
9336 | for (i = 0; i < n_switches; i++) | |
9337 | if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len) | |
9338 | && check_live_switch (i, switch_len)) | |
9339 | switch_value = switches[i].part1 + switch_len; | |
9340 | ||
9341 | if (switch_value == NULL) | |
9342 | comp1 = comp2 = -1; | |
9343 | else | |
9344 | { | |
9345 | comp1 = compare_version_strings (switch_value, argv[1]); | |
9346 | if (nargs == 2) | |
9347 | comp2 = compare_version_strings (switch_value, argv[2]); | |
9348 | else | |
9349 | comp2 = -1; /* This value unused. */ | |
9350 | } | |
9351 | ||
9352 | switch (argv[0][0] << 8 | argv[0][1]) | |
9353 | { | |
9354 | case '>' << 8 | '=': | |
9355 | result = comp1 >= 0; | |
9356 | break; | |
9357 | case '!' << 8 | '<': | |
9358 | result = comp1 >= 0 || switch_value == NULL; | |
9359 | break; | |
9360 | case '<' << 8: | |
9361 | result = comp1 < 0; | |
9362 | break; | |
9363 | case '!' << 8 | '>': | |
9364 | result = comp1 < 0 || switch_value == NULL; | |
9365 | break; | |
9366 | case '>' << 8 | '<': | |
9367 | result = comp1 >= 0 && comp2 < 0; | |
9368 | break; | |
9369 | case '<' << 8 | '>': | |
9370 | result = comp1 < 0 || comp2 >= 0; | |
9371 | break; | |
7904f95f | 9372 | |
ed5b9f96 | 9373 | default: |
40fecdd6 JM |
9374 | fatal_error (input_location, |
9375 | "unknown operator %qs in %%:version-compare", argv[0]); | |
ed5b9f96 GK |
9376 | } |
9377 | if (! result) | |
9378 | return NULL; | |
9379 | ||
9380 | return argv[nargs + 2]; | |
9381 | } | |
953ff289 DN |
9382 | |
9383 | /* %:include builtin spec function. This differs from %include in that it | |
9384 | can be nested inside a spec, and thus be conditionalized. It takes | |
9385 | one argument, the filename, and looks for it in the startfile path. | |
9386 | The result is always NULL, i.e. an empty expansion. */ | |
9387 | ||
9388 | static const char * | |
9389 | include_spec_function (int argc, const char **argv) | |
9390 | { | |
9391 | char *file; | |
9392 | ||
9393 | if (argc != 1) | |
9394 | abort (); | |
9395 | ||
4d2b059d | 9396 | file = find_a_file (&startfile_prefixes, argv[0], R_OK, true); |
d168aaee | 9397 | read_specs (file ? file : argv[0], false, false); |
953ff289 DN |
9398 | |
9399 | return NULL; | |
9400 | } | |
a0f87454 | 9401 | |
c1ce46a5 | 9402 | /* %:find-file spec function. This function replaces its argument by |
073a8998 | 9403 | the file found through find_file, that is the -print-file-name gcc |
4adbd5dd MK |
9404 | program option. */ |
9405 | static const char * | |
c1ce46a5 | 9406 | find_file_spec_function (int argc, const char **argv) |
4adbd5dd MK |
9407 | { |
9408 | const char *file; | |
9409 | ||
9410 | if (argc != 1) | |
9411 | abort (); | |
9412 | ||
9413 | file = find_file (argv[0]); | |
9414 | return file; | |
9415 | } | |
9416 | ||
9417 | ||
c1ce46a5 | 9418 | /* %:find-plugindir spec function. This function replaces its argument |
073a8998 | 9419 | by the -iplugindir=<dir> option. `dir' is found through find_file, that |
c1ce46a5 MK |
9420 | is the -print-file-name gcc program option. */ |
9421 | static const char * | |
9422 | find_plugindir_spec_function (int argc, const char **argv ATTRIBUTE_UNUSED) | |
9423 | { | |
9424 | const char *option; | |
9425 | ||
9426 | if (argc != 0) | |
9427 | abort (); | |
9428 | ||
9429 | option = concat ("-iplugindir=", find_file ("plugin"), NULL); | |
9430 | return option; | |
9431 | } | |
9432 | ||
9433 | ||
a0f87454 RS |
9434 | /* %:print-asm-header spec function. Print a banner to say that the |
9435 | following output is from the assembler. */ | |
9436 | ||
9437 | static const char * | |
9438 | print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED, | |
9439 | const char **argv ATTRIBUTE_UNUSED) | |
9440 | { | |
4dad0aca | 9441 | printf (_("Assembler options\n=================\n\n")); |
a0f87454 RS |
9442 | printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n")); |
9443 | fflush (stdout); | |
9444 | return NULL; | |
9445 | } | |
2153915d | 9446 | |
44a22bdb | 9447 | /* Get a random number for -frandom-seed */ |
b5b8b0ac | 9448 | |
44a22bdb AK |
9449 | static unsigned HOST_WIDE_INT |
9450 | get_random_number (void) | |
b5b8b0ac | 9451 | { |
44a22bdb AK |
9452 | unsigned HOST_WIDE_INT ret = 0; |
9453 | int fd; | |
9454 | ||
9455 | fd = open ("/dev/urandom", O_RDONLY); | |
9456 | if (fd >= 0) | |
9457 | { | |
9458 | read (fd, &ret, sizeof (HOST_WIDE_INT)); | |
9459 | close (fd); | |
9460 | if (ret) | |
9461 | return ret; | |
9462 | } | |
b5b8b0ac AO |
9463 | |
9464 | /* Get some more or less random data. */ | |
9465 | #ifdef HAVE_GETTIMEOFDAY | |
9466 | { | |
9467 | struct timeval tv; | |
9468 | ||
9469 | gettimeofday (&tv, NULL); | |
9470 | ret = tv.tv_sec * 1000 + tv.tv_usec / 1000; | |
9471 | } | |
9472 | #else | |
9473 | { | |
9474 | time_t now = time (NULL); | |
9475 | ||
9476 | if (now != (time_t)-1) | |
9477 | ret = (unsigned) now; | |
9478 | } | |
9479 | #endif | |
9480 | ||
c3284718 | 9481 | return ret ^ getpid (); |
b5b8b0ac AO |
9482 | } |
9483 | ||
2153915d AO |
9484 | /* %:compare-debug-dump-opt spec function. Save the last argument, |
9485 | expected to be the last -fdump-final-insns option, or generate a | |
9486 | temporary. */ | |
9487 | ||
9488 | static const char * | |
9489 | compare_debug_dump_opt_spec_function (int arg, | |
9490 | const char **argv ATTRIBUTE_UNUSED) | |
9491 | { | |
fc429b48 | 9492 | char *ret; |
2153915d AO |
9493 | char *name; |
9494 | int which; | |
b5b8b0ac | 9495 | static char random_seed[HOST_BITS_PER_WIDE_INT / 4 + 3]; |
2153915d AO |
9496 | |
9497 | if (arg != 0) | |
40fecdd6 JM |
9498 | fatal_error (input_location, |
9499 | "too many arguments to %%:compare-debug-dump-opt"); | |
2153915d | 9500 | |
2153915d AO |
9501 | do_spec_2 ("%{fdump-final-insns=*:%*}"); |
9502 | do_spec_1 (" ", 0, NULL); | |
9503 | ||
9771b263 DN |
9504 | if (argbuf.length () > 0 |
9505 | && strcmp (argv[argbuf.length () - 1], ".")) | |
2153915d | 9506 | { |
b5b8b0ac AO |
9507 | if (!compare_debug) |
9508 | return NULL; | |
9509 | ||
9771b263 | 9510 | name = xstrdup (argv[argbuf.length () - 1]); |
2153915d AO |
9511 | ret = NULL; |
9512 | } | |
9513 | else | |
9514 | { | |
b5b8b0ac AO |
9515 | const char *ext = NULL; |
9516 | ||
9771b263 | 9517 | if (argbuf.length () > 0) |
b5b8b0ac AO |
9518 | { |
9519 | do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}"); | |
9520 | ext = ".gkd"; | |
9521 | } | |
9522 | else if (!compare_debug) | |
9523 | return NULL; | |
9524 | else | |
9525 | do_spec_2 ("%g.gkd"); | |
2153915d | 9526 | |
2153915d | 9527 | do_spec_1 (" ", 0, NULL); |
2153915d | 9528 | |
9771b263 | 9529 | gcc_assert (argbuf.length () > 0); |
2153915d | 9530 | |
9771b263 | 9531 | name = concat (argbuf.last (), ext, NULL); |
b5b8b0ac AO |
9532 | |
9533 | ret = concat ("-fdump-final-insns=", name, NULL); | |
2153915d AO |
9534 | } |
9535 | ||
9536 | which = compare_debug < 0; | |
9537 | debug_check_temp_file[which] = name; | |
9538 | ||
b5b8b0ac AO |
9539 | if (!which) |
9540 | { | |
44a22bdb | 9541 | unsigned HOST_WIDE_INT value = get_random_number (); |
b5b8b0ac AO |
9542 | |
9543 | sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value); | |
9544 | } | |
9545 | ||
9546 | if (*random_seed) | |
fc429b48 TB |
9547 | { |
9548 | char *tmp = ret; | |
9549 | ret = concat ("%{!frandom-seed=*:-frandom-seed=", random_seed, "} ", | |
9550 | ret, NULL); | |
9551 | free (tmp); | |
9552 | } | |
b5b8b0ac AO |
9553 | |
9554 | if (which) | |
9555 | *random_seed = 0; | |
2153915d AO |
9556 | |
9557 | return ret; | |
9558 | } | |
9559 | ||
9560 | static const char *debug_auxbase_opt; | |
9561 | ||
9562 | /* %:compare-debug-self-opt spec function. Expands to the options | |
9563 | that are to be passed in the second compilation of | |
9564 | compare-debug. */ | |
9565 | ||
9566 | static const char * | |
9567 | compare_debug_self_opt_spec_function (int arg, | |
9568 | const char **argv ATTRIBUTE_UNUSED) | |
9569 | { | |
9570 | if (arg != 0) | |
40fecdd6 JM |
9571 | fatal_error (input_location, |
9572 | "too many arguments to %%:compare-debug-self-opt"); | |
2153915d AO |
9573 | |
9574 | if (compare_debug >= 0) | |
9575 | return NULL; | |
9576 | ||
9577 | do_spec_2 ("%{c|S:%{o*:%*}}"); | |
9578 | do_spec_1 (" ", 0, NULL); | |
9579 | ||
9771b263 | 9580 | if (argbuf.length () > 0) |
2153915d | 9581 | debug_auxbase_opt = concat ("-auxbase-strip ", |
9771b263 | 9582 | argbuf.last (), |
2153915d AO |
9583 | NULL); |
9584 | else | |
9585 | debug_auxbase_opt = NULL; | |
9586 | ||
9587 | return concat ("\ | |
9588 | %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \ | |
9589 | %<fdump-final-insns=* -w -S -o %j \ | |
9590 | %{!fcompare-debug-second:-fcompare-debug-second} \ | |
9591 | ", compare_debug_opt, NULL); | |
9592 | } | |
9593 | ||
9594 | /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase | |
9595 | options that are to be passed in the second compilation of | |
9596 | compare-debug. It expects, as an argument, the basename of the | |
9597 | current input file name, with the .gk suffix appended to it. */ | |
9598 | ||
9599 | static const char * | |
9600 | compare_debug_auxbase_opt_spec_function (int arg, | |
9601 | const char **argv) | |
9602 | { | |
9603 | char *name; | |
9604 | int len; | |
9605 | ||
9606 | if (arg == 0) | |
40fecdd6 JM |
9607 | fatal_error (input_location, |
9608 | "too few arguments to %%:compare-debug-auxbase-opt"); | |
2153915d AO |
9609 | |
9610 | if (arg != 1) | |
40fecdd6 JM |
9611 | fatal_error (input_location, |
9612 | "too many arguments to %%:compare-debug-auxbase-opt"); | |
2153915d AO |
9613 | |
9614 | if (compare_debug >= 0) | |
9615 | return NULL; | |
9616 | ||
9617 | len = strlen (argv[0]); | |
9618 | if (len < 3 || strcmp (argv[0] + len - 3, ".gk") != 0) | |
40fecdd6 | 9619 | fatal_error (input_location, "argument to %%:compare-debug-auxbase-opt " |
2dec80c7 | 9620 | "does not end in .gk"); |
2153915d AO |
9621 | |
9622 | if (debug_auxbase_opt) | |
9623 | return debug_auxbase_opt; | |
9624 | ||
9625 | #define OPT "-auxbase " | |
9626 | ||
9627 | len -= 3; | |
9628 | name = (char*) xmalloc (sizeof (OPT) + len); | |
9629 | memcpy (name, OPT, sizeof (OPT) - 1); | |
9630 | memcpy (name + sizeof (OPT) - 1, argv[0], len); | |
9631 | name[sizeof (OPT) - 1 + len] = '\0'; | |
9632 | ||
b5b8b0ac AO |
9633 | #undef OPT |
9634 | ||
2153915d AO |
9635 | return name; |
9636 | } | |
9a37bc07 DK |
9637 | |
9638 | /* %:pass-through-libs spec function. Finds all -l options and input | |
9639 | file names in the lib spec passed to it, and makes a list of them | |
9640 | prepended with the plugin option to cause them to be passed through | |
9641 | to the final link after all the new object files have been added. */ | |
9642 | ||
9643 | const char * | |
9644 | pass_through_libs_spec_func (int argc, const char **argv) | |
9645 | { | |
9646 | char *prepended = xstrdup (" "); | |
9647 | int n; | |
9648 | /* Shlemiel the painter's algorithm. Innately horrible, but at least | |
9649 | we know that there will never be more than a handful of strings to | |
9650 | concat, and it's only once per run, so it's not worth optimising. */ | |
9651 | for (n = 0; n < argc; n++) | |
9652 | { | |
9653 | char *old = prepended; | |
9654 | /* Anything that isn't an option is a full path to an output | |
9655 | file; pass it through if it ends in '.a'. Among options, | |
9656 | pass only -l. */ | |
9657 | if (argv[n][0] == '-' && argv[n][1] == 'l') | |
9658 | { | |
9659 | const char *lopt = argv[n] + 2; | |
9660 | /* Handle both joined and non-joined -l options. If for any | |
9661 | reason there's a trailing -l with no joined or following | |
9662 | arg just discard it. */ | |
9663 | if (!*lopt && ++n >= argc) | |
9664 | break; | |
9665 | else if (!*lopt) | |
9666 | lopt = argv[n]; | |
9667 | prepended = concat (prepended, "-plugin-opt=-pass-through=-l", | |
9668 | lopt, " ", NULL); | |
9669 | } | |
9670 | else if (!strcmp (".a", argv[n] + strlen (argv[n]) - 2)) | |
9671 | { | |
9672 | prepended = concat (prepended, "-plugin-opt=-pass-through=", | |
9673 | argv[n], " ", NULL); | |
9674 | } | |
9675 | if (prepended != old) | |
9676 | free (old); | |
9677 | } | |
9678 | return prepended; | |
9679 | } | |
99ea153e SA |
9680 | |
9681 | /* %:replace-extension spec function. Replaces the extension of the | |
9682 | first argument with the second argument. */ | |
9683 | ||
9684 | const char * | |
9685 | replace_extension_spec_func (int argc, const char **argv) | |
9686 | { | |
9687 | char *name; | |
9688 | char *p; | |
9689 | char *result; | |
9690 | int i; | |
9691 | ||
9692 | if (argc != 2) | |
40fecdd6 | 9693 | fatal_error (input_location, "too few arguments to %%:replace-extension"); |
99ea153e SA |
9694 | |
9695 | name = xstrdup (argv[0]); | |
9696 | ||
c3284718 | 9697 | for (i = strlen (name) - 1; i >= 0; i--) |
99ea153e SA |
9698 | if (IS_DIR_SEPARATOR (name[i])) |
9699 | break; | |
9700 | ||
9701 | p = strrchr (name + i + 1, '.'); | |
9702 | if (p != NULL) | |
9703 | *p = '\0'; | |
9704 | ||
9705 | result = concat (name, argv[1], NULL); | |
9706 | ||
9707 | free (name); | |
9708 | return result; | |
9709 | } | |
3c27ce4c | 9710 | |
cf7416c3 TV |
9711 | /* Returns "" if the n in ARGV[1] == -opt=<n> is greater than ARGV[2]. |
9712 | Otherwise, return NULL. */ | |
9713 | ||
9714 | static const char * | |
9715 | greater_than_spec_func (int argc, const char **argv) | |
9716 | { | |
9717 | char *converted; | |
9718 | ||
9719 | if (argc == 1) | |
9720 | return NULL; | |
9721 | ||
9722 | gcc_assert (argc == 3); | |
9723 | gcc_assert (argv[0][0] == '-'); | |
9724 | gcc_assert (argv[0][1] == '\0'); | |
9725 | ||
9726 | /* Point p to <n> in in -opt=<n>. */ | |
9727 | const char *p = argv[1]; | |
9728 | while (true) | |
9729 | { | |
9730 | char c = *p; | |
9731 | if (c == '\0') | |
9732 | gcc_unreachable (); | |
9733 | ||
9734 | ++p; | |
9735 | ||
9736 | if (c == '=') | |
9737 | break; | |
9738 | } | |
9739 | ||
9740 | long arg = strtol (p, &converted, 10); | |
9741 | gcc_assert (converted != p); | |
9742 | ||
9743 | long lim = strtol (argv[2], &converted, 10); | |
9744 | gcc_assert (converted != argv[2]); | |
9745 | ||
9746 | if (arg > lim) | |
9747 | return ""; | |
9748 | ||
9749 | return NULL; | |
9750 | } | |
9751 | ||
3c27ce4c JY |
9752 | /* Insert backslash before spaces in ORIG (usually a file path), to |
9753 | avoid being broken by spec parser. | |
9754 | ||
9755 | This function is needed as do_spec_1 treats white space (' ' and '\t') | |
9756 | as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so, | |
9757 | the file name should be treated as a single argument rather than being | |
9758 | broken into multiple. Solution is to insert '\\' before the space in a | |
9759 | file name. | |
9760 | ||
9761 | This function converts and only converts all occurrence of ' ' | |
9762 | to '\\' + ' ' and '\t' to '\\' + '\t'. For example: | |
9763 | "a b" -> "a\\ b" | |
9764 | "a b" -> "a\\ \\ b" | |
9765 | "a\tb" -> "a\\\tb" | |
9766 | "a\\ b" -> "a\\\\ b" | |
9767 | ||
9768 | orig: input null-terminating string that was allocated by xalloc. The | |
9769 | memory it points to might be freed in this function. Behavior undefined | |
9770 | if ORIG wasn't xalloced or was freed already at entry. | |
9771 | ||
9772 | Return: ORIG if no conversion needed. Otherwise a newly allocated string | |
9773 | that was converted from ORIG. */ | |
9774 | ||
9775 | static char * | |
9776 | convert_white_space (char *orig) | |
9777 | { | |
9778 | int len, number_of_space = 0; | |
9779 | ||
9780 | for (len = 0; orig[len]; len++) | |
9781 | if (orig[len] == ' ' || orig[len] == '\t') number_of_space++; | |
9782 | ||
9783 | if (number_of_space) | |
9784 | { | |
9785 | char *new_spec = (char *) xmalloc (len + number_of_space + 1); | |
9786 | int j, k; | |
9787 | for (j = 0, k = 0; j <= len; j++, k++) | |
9788 | { | |
9789 | if (orig[j] == ' ' || orig[j] == '\t') | |
9790 | new_spec[k++] = '\\'; | |
9791 | new_spec[k] = orig[j]; | |
9792 | } | |
9793 | free (orig); | |
9794 | return new_spec; | |
9795 | } | |
9796 | else | |
9797 | return orig; | |
9798 | } | |
2cb844ce | 9799 | |
9376dd63 DM |
9800 | static void |
9801 | path_prefix_reset (path_prefix *prefix) | |
9802 | { | |
9803 | struct prefix_list *iter, *next; | |
9804 | iter = prefix->plist; | |
9805 | while (iter) | |
9806 | { | |
9807 | next = iter->next; | |
9808 | free (const_cast <char *> (iter->prefix)); | |
9809 | XDELETE (iter); | |
9810 | iter = next; | |
9811 | } | |
9812 | prefix->plist = 0; | |
9813 | prefix->max_len = 0; | |
9814 | } | |
9815 | ||
9816 | /* Restore all state within gcc.c to the initial state, so that the driver | |
9817 | code can be safely re-run in-process. | |
9818 | ||
9819 | Many const char * variables are referenced by static specs (see | |
9820 | INIT_STATIC_SPEC above). These variables are restored to their default | |
9821 | values by a simple loop over the static specs. | |
9822 | ||
9823 | For other variables, we directly restore them all to their initial | |
9824 | values (often implicitly 0). | |
9825 | ||
9826 | Free the various obstacks in this file, along with "opts_obstack" | |
9827 | from opts.c. | |
9828 | ||
9829 | This function also restores any environment variables that were changed. */ | |
9830 | ||
9831 | void | |
9832 | driver::finalize () | |
9833 | { | |
9834 | env.restore (); | |
9835 | params_c_finalize (); | |
9836 | diagnostic_finish (global_dc); | |
9837 | ||
9838 | is_cpp_driver = 0; | |
9839 | at_file_supplied = 0; | |
9840 | print_help_list = 0; | |
9841 | print_version = 0; | |
9842 | verbose_only_flag = 0; | |
9843 | print_subprocess_help = 0; | |
9844 | use_ld = NULL; | |
9845 | report_times_to_file = NULL; | |
9846 | target_system_root = DEFAULT_TARGET_SYSTEM_ROOT; | |
9847 | target_system_root_changed = 0; | |
9848 | target_sysroot_suffix = 0; | |
9849 | target_sysroot_hdrs_suffix = 0; | |
9850 | save_temps_flag = SAVE_TEMPS_NONE; | |
9851 | save_temps_prefix = 0; | |
9852 | save_temps_length = 0; | |
9853 | spec_machine = DEFAULT_TARGET_MACHINE; | |
9854 | greatest_status = 1; | |
9855 | ||
9856 | finalize_options_struct (&global_options); | |
9857 | finalize_options_struct (&global_options_set); | |
9858 | ||
9859 | obstack_free (&obstack, NULL); | |
9860 | obstack_free (&opts_obstack, NULL); /* in opts.c */ | |
9861 | obstack_free (&collect_obstack, NULL); | |
9862 | ||
9863 | link_command_spec = LINK_COMMAND_SPEC; | |
9864 | ||
9865 | obstack_free (&multilib_obstack, NULL); | |
9866 | ||
9867 | user_specs_head = NULL; | |
9868 | user_specs_tail = NULL; | |
9869 | ||
9870 | /* Within the "compilers" vec, the fields "suffix" and "spec" were | |
9871 | statically allocated for the default compilers, but dynamically | |
9872 | allocated for additional compilers. Delete them for the latter. */ | |
9873 | for (int i = n_default_compilers; i < n_compilers; i++) | |
9874 | { | |
9875 | free (const_cast <char *> (compilers[i].suffix)); | |
9876 | free (const_cast <char *> (compilers[i].spec)); | |
9877 | } | |
9878 | XDELETEVEC (compilers); | |
9879 | compilers = NULL; | |
9880 | n_compilers = 0; | |
9881 | ||
9882 | linker_options.truncate (0); | |
9883 | assembler_options.truncate (0); | |
9884 | preprocessor_options.truncate (0); | |
9885 | ||
9886 | path_prefix_reset (&exec_prefixes); | |
9887 | path_prefix_reset (&startfile_prefixes); | |
9888 | path_prefix_reset (&include_prefixes); | |
9889 | ||
9890 | machine_suffix = 0; | |
9891 | just_machine_suffix = 0; | |
9892 | gcc_exec_prefix = 0; | |
9893 | gcc_libexec_prefix = 0; | |
9894 | md_exec_prefix = MD_EXEC_PREFIX; | |
9895 | md_startfile_prefix = MD_STARTFILE_PREFIX; | |
9896 | md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1; | |
9897 | multilib_dir = 0; | |
9898 | multilib_os_dir = 0; | |
9899 | multiarch_dir = 0; | |
9900 | ||
9901 | XDELETEVEC (specs); | |
9902 | specs = 0; | |
9903 | for (unsigned i = 0; i < ARRAY_SIZE (static_specs); i++) | |
9904 | { | |
9905 | spec_list *sl = &static_specs[i]; | |
9906 | if (sl->alloc_p) | |
9907 | { | |
9908 | if (0) | |
9909 | free (const_cast <char *> (*(sl->ptr_spec))); | |
9910 | sl->alloc_p = false; | |
9911 | } | |
9912 | *(sl->ptr_spec) = sl->default_ptr; | |
9913 | } | |
de26e239 | 9914 | #ifdef EXTRA_SPECS |
9376dd63 | 9915 | extra_specs = NULL; |
de26e239 | 9916 | #endif |
9376dd63 DM |
9917 | |
9918 | processing_spec_function = 0; | |
9919 | ||
9920 | argbuf.truncate (0); | |
9921 | ||
9922 | have_c = 0; | |
9923 | have_o = 0; | |
9924 | ||
9925 | temp_names = NULL; | |
9926 | execution_count = 0; | |
9927 | signal_count = 0; | |
9928 | ||
9929 | temp_filename = NULL; | |
9930 | temp_filename_length = 0; | |
9931 | always_delete_queue = NULL; | |
9932 | failure_delete_queue = NULL; | |
9933 | ||
9934 | XDELETEVEC (switches); | |
9935 | switches = NULL; | |
9936 | n_switches = 0; | |
9937 | n_switches_alloc = 0; | |
9938 | ||
9939 | compare_debug = 0; | |
9940 | compare_debug_second = 0; | |
9941 | compare_debug_opt = NULL; | |
9942 | for (int i = 0; i < 2; i++) | |
9943 | { | |
9944 | switches_debug_check[i] = NULL; | |
9945 | n_switches_debug_check[i] = 0; | |
9946 | n_switches_alloc_debug_check[i] = 0; | |
9947 | debug_check_temp_file[i] = NULL; | |
9948 | } | |
9949 | ||
9950 | XDELETEVEC (infiles); | |
9951 | infiles = NULL; | |
9952 | n_infiles = 0; | |
9953 | n_infiles_alloc = 0; | |
9954 | ||
9955 | combine_inputs = false; | |
9956 | added_libraries = 0; | |
9957 | XDELETEVEC (outfiles); | |
9958 | outfiles = NULL; | |
9959 | spec_lang = 0; | |
9960 | last_language_n_infiles = 0; | |
9961 | gcc_input_filename = NULL; | |
9962 | input_file_number = 0; | |
9963 | input_filename_length = 0; | |
9964 | basename_length = 0; | |
9965 | suffixed_basename_length = 0; | |
9966 | input_basename = NULL; | |
9967 | input_suffix = NULL; | |
9968 | /* We don't need to purge "input_stat", just to unset "input_stat_set". */ | |
9969 | input_stat_set = 0; | |
9970 | input_file_compiler = NULL; | |
9971 | arg_going = 0; | |
9972 | delete_this_arg = 0; | |
9973 | this_is_output_file = 0; | |
9974 | this_is_library_file = 0; | |
9975 | this_is_linker_script = 0; | |
9976 | input_from_pipe = 0; | |
9977 | suffix_subst = NULL; | |
9978 | ||
9979 | mdswitches = NULL; | |
9980 | n_mdswitches = 0; | |
9981 | ||
9982 | debug_auxbase_opt = NULL; | |
9983 | ||
9984 | used_arg.finalize (); | |
9985 | } | |
9986 | ||
2cb844ce DM |
9987 | /* PR jit/64810. |
9988 | Targets can provide configure-time default options in | |
9989 | OPTION_DEFAULT_SPECS. The jit needs to access these, but | |
9990 | they are expressed in the spec language. | |
9991 | ||
9992 | Run just enough of the driver to be able to expand these | |
9993 | specs, and then call the callback CB on each | |
9994 | such option. The options strings are *without* a leading | |
9995 | '-' character e.g. ("march=x86-64"). Finally, clean up. */ | |
9996 | ||
9997 | void | |
9998 | driver_get_configure_time_options (void (*cb) (const char *option, | |
9999 | void *user_data), | |
10000 | void *user_data) | |
10001 | { | |
10002 | size_t i; | |
10003 | ||
10004 | obstack_init (&obstack); | |
de5672fc | 10005 | init_opts_obstack (); |
2cb844ce DM |
10006 | n_switches = 0; |
10007 | ||
10008 | for (i = 0; i < ARRAY_SIZE (option_default_specs); i++) | |
10009 | do_option_spec (option_default_specs[i].name, | |
10010 | option_default_specs[i].spec); | |
10011 | ||
10012 | for (i = 0; (int) i < n_switches; i++) | |
10013 | { | |
10014 | gcc_assert (switches[i].part1); | |
10015 | (*cb) (switches[i].part1, user_data); | |
10016 | } | |
10017 | ||
10018 | obstack_free (&opts_obstack, NULL); | |
10019 | obstack_free (&obstack, NULL); | |
10020 | n_switches = 0; | |
10021 | } |