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d7a9644e | 1 | /* Compiler driver program that can handle many languages. |
aad93da1 | 2 | Copyright (C) 1987-2017 Free Software Foundation, Inc. |
d7a9644e | 3 | |
f12b58b3 | 4 | This file is part of GCC. |
d7a9644e | 5 | |
f12b58b3 | 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 | |
8c4c00c1 | 8 | Software Foundation; either version 3, or (at your option) any later |
f12b58b3 | 9 | version. |
d7a9644e | 10 | |
f12b58b3 | 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. | |
d7a9644e | 15 | |
16 | You should have received a copy of the GNU General Public License | |
8c4c00c1 | 17 | along with GCC; see the file COPYING3. If not see |
3d70fb39 | 18 | <http://www.gnu.org/licenses/>. */ |
d7a9644e | 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". */ | |
7014838c | 29 | |
0dbd1c74 | 30 | #include "config.h" |
405711de | 31 | #include "system.h" |
805e22b2 | 32 | #include "coretypes.h" |
0a2326d6 | 33 | #include "multilib.h" /* before tm.h */ |
805e22b2 | 34 | #include "tm.h" |
9b1f316f | 35 | #include "xregex.h" |
fe8833f8 | 36 | #include "obstack.h" |
be2828ce | 37 | #include "intl.h" |
7bcdc3c7 | 38 | #include "prefix.h" |
7f0b0c27 | 39 | #include "gcc.h" |
460b8bb3 | 40 | #include "diagnostic.h" |
a6a0d17a | 41 | #include "flags.h" |
a1baa5f1 | 42 | #include "opts.h" |
90336809 | 43 | #include "params.h" |
82715bcd | 44 | #include "filenames.h" |
b279775f | 45 | #include "spellcheck.h" |
4ee8d66a | 46 | |
26a4a13d | 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; | |
965a654d | 127 | kv.m_key = xstrndup (string, equals - string); |
26a4a13d | 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 | ||
10f57222 | 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 | |
d7a9644e | 176 | #endif |
99b832c9 | 177 | |
10f57222 | 178 | /* By default there is no special suffix for host executables. */ |
179 | #ifdef HOST_EXECUTABLE_SUFFIX | |
180 | #define HAVE_HOST_EXECUTABLE_SUFFIX | |
9ec04dd9 | 181 | #else |
10f57222 | 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" | |
499a0933 | 190 | #endif |
191 | ||
e99c3a1d | 192 | static const char dir_separator_str[] = { DIR_SEPARATOR, 0 }; |
b9374a77 | 193 | |
397f1574 | 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 | ||
d7a9644e | 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 | ||
258d3911 | 204 | /* Flag set by cppspec.c to 1. */ |
205 | int is_cpp_driver; | |
206 | ||
80777cd8 | 207 | /* Flag set to nonzero if an @file argument has been supplied to gcc. */ |
c159e0b7 | 208 | static bool at_file_supplied; |
209 | ||
4a0e2d42 | 210 | /* Definition of string containing the arguments given to configure. */ |
211 | #include "configargs.h" | |
212 | ||
8ace789a | 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 | ||
39932bd2 | 218 | /* Flag saying to print the version of gcc and its sub-processes. */ |
219 | ||
220 | static int print_version; | |
221 | ||
74e4079a | 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 | ||
87c75316 | 229 | /* Flag indicating how to print command line options of sub-processes. */ |
7a6882ca | 230 | |
87c75316 | 231 | static int print_subprocess_help; |
7a6882ca | 232 | |
c75e4990 | 233 | /* Linker suffix passed to -fuse-ld=... */ |
234 | static const char *use_ld; | |
235 | ||
4537c5d9 | 236 | /* Whether we should report subprocess execution times to a file. */ |
237 | ||
238 | FILE *report_times_to_file = NULL; | |
239 | ||
805e22b2 | 240 | /* Nonzero means place this string before uses of /, so that include |
241 | and library files can be found in an alternate location. */ | |
242 | ||
d68c6656 | 243 | #ifdef TARGET_SYSTEM_ROOT |
26a4a13d | 244 | #define DEFAULT_TARGET_SYSTEM_ROOT (TARGET_SYSTEM_ROOT) |
d68c6656 | 245 | #else |
26a4a13d | 246 | #define DEFAULT_TARGET_SYSTEM_ROOT (0) |
d68c6656 | 247 | #endif |
26a4a13d | 248 | static const char *target_system_root = DEFAULT_TARGET_SYSTEM_ROOT; |
805e22b2 | 249 | |
17acc97a | 250 | /* Nonzero means pass the updated target_system_root to the compiler. */ |
251 | ||
252 | static int target_system_root_changed; | |
253 | ||
4ea70922 | 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 | ||
d7a9644e | 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 | ||
cc92bc82 | 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; | |
d7a9644e | 274 | |
4dd56bd9 | 275 | /* The compiler version. */ |
d7a9644e | 276 | |
e772a198 | 277 | static const char *compiler_version; |
4dd56bd9 | 278 | |
cf93b7e8 | 279 | /* The target version. */ |
4dd56bd9 | 280 | |
3443e1be | 281 | static const char *const spec_version = DEFAULT_TARGET_VERSION; |
d7a9644e | 282 | |
cf93b7e8 | 283 | /* The target machine. */ |
d7a9644e | 284 | |
e40d43cc | 285 | static const char *spec_machine = DEFAULT_TARGET_MACHINE; |
77415571 | 286 | static const char *spec_host_machine = DEFAULT_REAL_TARGET_MACHINE; |
d7a9644e | 287 | |
daa8f58f | 288 | /* List of offload targets. Separated by colon. Empty string for |
289 | -foffload=disable. */ | |
38e21583 | 290 | |
291 | static char *offload_targets = NULL; | |
292 | ||
a45072dd | 293 | /* Nonzero if cross-compiling. |
294 | When -b is used, the value comes from the `specs' file. */ | |
295 | ||
29d774d0 | 296 | #ifdef CROSS_DIRECTORY_STRUCTURE |
e772a198 | 297 | static const char *cross_compile = "1"; |
a45072dd | 298 | #else |
e772a198 | 299 | static const char *cross_compile = "0"; |
a45072dd | 300 | #endif |
301 | ||
155b05dc | 302 | /* Greatest exit code of sub-processes that has been encountered up to |
303 | now. */ | |
304 | static int greatest_status = 1; | |
305 | ||
d7a9644e | 306 | /* This is the obstack which we use to allocate many strings. */ |
307 | ||
308 | static struct obstack obstack; | |
309 | ||
8894538a | 310 | /* This is the obstack to build an environment variable to pass to |
4bbea254 | 311 | collect2 that describes all of the relevant switches of what to |
8894538a | 312 | pass the compiler in building the list of pointers to constructors |
313 | and destructors. */ | |
314 | ||
315 | static struct obstack collect_obstack; | |
316 | ||
cbc3c863 | 317 | /* Forward declaration for prototypes. */ |
318 | struct path_prefix; | |
42bbc7e6 | 319 | struct prefix_list; |
cbc3c863 | 320 | |
952f0048 | 321 | static void init_spec (void); |
322 | static void store_arg (const char *, int, int); | |
0bfd146e | 323 | static void insert_wrapper (const char *); |
952f0048 | 324 | static char *load_specs (const char *); |
556cfe53 | 325 | static void read_specs (const char *, bool, bool); |
326 | static void set_spec (const char *, const char *, bool); | |
952f0048 | 327 | static struct compiler *lookup_compiler (const char *, size_t, const char *); |
067277c3 | 328 | static char *build_search_list (const struct path_prefix *, const char *, |
329 | bool, bool); | |
e8105390 | 330 | static void xputenv (const char *); |
067277c3 | 331 | static void putenv_from_prefixes (const struct path_prefix *, const char *, |
332 | bool); | |
952f0048 | 333 | static int access_check (const char *, int); |
067277c3 | 334 | static char *find_a_file (const struct path_prefix *, const char *, int, bool); |
952f0048 | 335 | static void add_prefix (struct path_prefix *, const char *, const char *, |
2af84186 | 336 | int, int, int); |
952f0048 | 337 | static void add_sysrooted_prefix (struct path_prefix *, const char *, |
2af84186 | 338 | const char *, int, int, int); |
952f0048 | 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 *); | |
9e46467d | 353 | static const char *handle_spec_function (const char *, bool *); |
952f0048 | 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 *); | |
067277c3 | 361 | static int is_directory (const char *, bool); |
556cfe53 | 362 | static const char *validate_switches (const char *, bool); |
952f0048 | 363 | static void validate_all_switches (void); |
556cfe53 | 364 | static inline void validate_switches_from_spec (const char *, bool); |
952f0048 | 365 | static void give_switch (int, int); |
952f0048 | 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 *); | |
952f0048 | 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); | |
e62df35b | 374 | static void process_command (unsigned int, struct cl_decoded_option *); |
952f0048 | 375 | static int execute (void); |
376 | static void alloc_args (void); | |
377 | static void clear_args (void); | |
a922df2e | 378 | static void fatal_signal (int); |
ecbfdc87 | 379 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) |
952f0048 | 380 | static void init_gcc_specs (struct obstack *, const char *, const char *, |
381 | const char *); | |
b51d5c7c | 382 | #endif |
7e6b5e54 | 383 | #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
952f0048 | 384 | static const char *convert_filename (const char *, int, int); |
7e6b5e54 | 385 | #endif |
c21b3276 | 386 | |
d3faa4b6 | 387 | static void try_generate_repro (const char **argv); |
0305c755 | 388 | static const char *getenv_spec_function (int, const char **); |
952f0048 | 389 | static const char *if_exists_spec_function (int, const char **); |
390 | static const char *if_exists_else_spec_function (int, const char **); | |
9e46467d | 391 | static const char *sanitize_spec_function (int, const char **); |
2288041e | 392 | static const char *replace_outfile_spec_function (int, const char **); |
8127ab5d | 393 | static const char *remove_outfile_spec_function (int, const char **); |
9b1f316f | 394 | static const char *version_compare_spec_function (int, const char **); |
1e8e9920 | 395 | static const char *include_spec_function (int, const char **); |
19bc000d | 396 | static const char *find_file_spec_function (int, const char **); |
d6bff3e6 | 397 | static const char *find_plugindir_spec_function (int, const char **); |
ceac8e8c | 398 | static const char *print_asm_header_spec_function (int, const char **); |
71278019 | 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 **); | |
280f8649 | 402 | static const char *pass_through_libs_spec_func (int, const char **); |
b35329c7 | 403 | static const char *replace_extension_spec_func (int, const char **); |
1b316d69 | 404 | static const char *greater_than_spec_func (int, const char **); |
14234f77 | 405 | static const char *debug_level_greater_than_spec_func (int, const char **); |
40c059b1 | 406 | static char *convert_white_space (char *); |
d7a9644e | 407 | \f |
833a5c07 | 408 | /* The Specs Language |
409 | ||
410 | Specs are strings containing lines, each of which (if not blank) | |
d7a9644e | 411 | is made up of a program name, and arguments separated by spaces. |
412 | The program name must be exact and start from root, since no path | |
413 | is searched and it is unreliable to depend on the current working directory. | |
414 | Redirection of input or output is not supported; the subprograms must | |
415 | accept filenames saying what files to read and write. | |
416 | ||
417 | In addition, the specs can contain %-sequences to substitute variable text | |
418 | or for conditional text. Here is a table of all defined %-sequences. | |
419 | Note that spaces are not generated automatically around the results of | |
420 | expanding these sequences; therefore, you can concatenate them together | |
421 | or with constant text in a single argument. | |
422 | ||
423 | %% substitute one % into the program name or argument. | |
424 | %i substitute the name of the input file being processed. | |
425 | %b substitute the basename of the input file being processed. | |
426 | This is the substring up to (and not including) the last period | |
cc92bc82 | 427 | and not including the directory unless -save-temps was specified |
d7ee9e9b | 428 | to put temporaries in a different location. |
1cf79a1a | 429 | %B same as %b, but include the file suffix (text after the last period). |
c78c5ee7 | 430 | %gSUFFIX |
431 | substitute a file name that has suffix SUFFIX and is chosen | |
432 | once per compilation, and mark the argument a la %d. To reduce | |
433 | exposure to denial-of-service attacks, the file name is now | |
434 | chosen in a way that is hard to predict even when previously | |
435 | chosen file names are known. For example, `%g.s ... %g.o ... %g.s' | |
436 | might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches | |
b78b6a05 | 437 | the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it |
2c2aaf10 | 438 | had been pre-processed. Previously, %g was simply substituted |
439 | with a file name chosen once per compilation, without regard | |
440 | to any appended suffix (which was therefore treated just like | |
441 | ordinary text), making such attacks more likely to succeed. | |
805e22b2 | 442 | %|SUFFIX |
443 | like %g, but if -pipe is in effect, expands simply to "-". | |
444 | %mSUFFIX | |
445 | like %g, but if -pipe is in effect, expands to nothing. (We have both | |
446 | %| and %m to accommodate differences between system assemblers; see | |
447 | the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.) | |
c78c5ee7 | 448 | %uSUFFIX |
449 | like %g, but generates a new temporary file name even if %uSUFFIX | |
450 | was already seen. | |
451 | %USUFFIX | |
452 | substitutes the last file name generated with %uSUFFIX, generating a | |
453 | new one if there is no such last file name. In the absence of any | |
454 | %uSUFFIX, this is just like %gSUFFIX, except they don't share | |
455 | the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s' | |
456 | would involve the generation of two distinct file names, one | |
457 | for each `%g.s' and another for each `%U.s'. Previously, %U was | |
458 | simply substituted with a file name chosen for the previous %u, | |
459 | without regard to any appended suffix. | |
655a58fa | 460 | %jSUFFIX |
461 | substitutes the name of the HOST_BIT_BUCKET, if any, and if it is | |
462 | writable, and if save-temps is off; otherwise, substitute the name | |
463 | of a temporary file, just like %u. This temporary file is not | |
464 | meant for communication between processes, but rather as a junk | |
465 | disposal mechanism. | |
bdbd5352 | 466 | %.SUFFIX |
467 | substitutes .SUFFIX for the suffixes of a matched switch's args when | |
468 | it is subsequently output with %*. SUFFIX is terminated by the next | |
469 | space or %. | |
d7a9644e | 470 | %d marks the argument containing or following the %d as a |
47ae02b7 | 471 | temporary file name, so that file will be deleted if GCC exits |
d7a9644e | 472 | successfully. Unlike %g, this contributes no text to the argument. |
473 | %w marks the argument containing or following the %w as the | |
474 | "output file" of this compilation. This puts the argument | |
475 | into the sequence of arguments that %o will substitute later. | |
573aba85 | 476 | %V indicates that this compilation produces no "output file". |
d7a9644e | 477 | %W{...} |
478 | like %{...} but mark last argument supplied within | |
479 | as a file to be deleted on failure. | |
480 | %o substitutes the names of all the output files, with spaces | |
481 | automatically placed around them. You should write spaces | |
482 | around the %o as well or the results are undefined. | |
483 | %o is for use in the specs for running the linker. | |
484 | Input files whose names have no recognized suffix are not compiled | |
485 | at all, but they are included among the output files, so they will | |
486 | be linked. | |
c78c5ee7 | 487 | %O substitutes the suffix for object files. Note that this is |
2c2aaf10 | 488 | handled specially when it immediately follows %g, %u, or %U |
489 | (with or without a suffix argument) because of the need for | |
490 | those to form complete file names. The handling is such that | |
491 | %O is treated exactly as if it had already been substituted, | |
492 | except that %g, %u, and %U do not currently support additional | |
493 | SUFFIX characters following %O as they would following, for | |
494 | example, `.o'. | |
17acc97a | 495 | %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot |
72779020 | 496 | (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH |
497 | and -B options) and -imultilib as necessary. | |
d7a9644e | 498 | %s current argument is the name of a library or startup file of some sort. |
499 | Search for that file in a standard list of directories | |
500 | and substitute the full name found. | |
501 | %eSTR Print STR as an error message. STR is terminated by a newline. | |
502 | Use this when inconsistent options are detected. | |
edc2a478 | 503 | %nSTR Print STR as a notice. STR is terminated by a newline. |
d7a9644e | 504 | %x{OPTION} Accumulate an option for %X. |
505 | %X Output the accumulated linker options specified by compilations. | |
69587571 | 506 | %Y Output the accumulated assembler options specified by compilations. |
391d9b6e | 507 | %Z Output the accumulated preprocessor options specified by compilations. |
d7a9644e | 508 | %a process ASM_SPEC as a spec. |
509 | This allows config.h to specify part of the spec for running as. | |
510 | %A process ASM_FINAL_SPEC as a spec. A capital A is actually | |
511 | used here. This can be used to run a post-processor after the | |
9e042f31 | 512 | assembler has done its job. |
b9374a77 | 513 | %D Dump out a -L option for each directory in startfile_prefixes. |
9577d478 | 514 | If multilib_dir is set, extra entries are generated with it affixed. |
d7a9644e | 515 | %l process LINK_SPEC as a spec. |
516 | %L process LIB_SPEC as a spec. | |
c93570ad | 517 | %M Output multilib_os_dir. |
b7c87ff2 | 518 | %G process LIBGCC_SPEC as a spec. |
b6bcc48f | 519 | %R Output the concatenation of target_system_root and |
520 | target_sysroot_suffix. | |
d7a9644e | 521 | %S process STARTFILE_SPEC as a spec. A capital S is actually used here. |
522 | %E process ENDFILE_SPEC as a spec. A capital E is actually used here. | |
43198b29 | 523 | %C process CPP_SPEC as a spec. |
d7a9644e | 524 | %1 process CC1_SPEC as a spec. |
525 | %2 process CC1PLUS_SPEC as a spec. | |
526 | %* substitute the variable part of a matched option. (See below.) | |
527 | Note that each comma in the substituted string is replaced by | |
1d9ad37b | 528 | a single space. A space is appended after the last substition |
529 | unless there is more text in current sequence. | |
805e22b2 | 530 | %<S remove all occurrences of -S from the command line. |
531 | Note - this command is position dependent. % commands in the | |
532 | spec string before this one will see -S, % commands in the | |
533 | spec string after this one will not. | |
5c1421d7 | 534 | %>S Similar to "%<S", but keep it in the GCC command line. |
805e22b2 | 535 | %<S* remove all occurrences of all switches beginning with -S from the |
536 | command line. | |
c21b3276 | 537 | %:function(args) |
538 | Call the named function FUNCTION, passing it ARGS. ARGS is | |
539 | first processed as a nested spec string, then split into an | |
540 | argument vector in the usual fashion. The function returns | |
541 | a string which is processed as if it had appeared literally | |
542 | as part of the current spec. | |
c68bcf58 | 543 | %{S} substitutes the -S switch, if that switch was given to GCC. |
d7a9644e | 544 | If that switch was not specified, this substitutes nothing. |
545 | Here S is a metasyntactic variable. | |
c68bcf58 | 546 | %{S*} substitutes all the switches specified to GCC whose names start |
e1478c0f | 547 | with -S. This is used for -o, -I, etc; switches that take |
c68bcf58 | 548 | arguments. GCC considers `-o foo' as being one switch whose |
d7a9644e | 549 | name starts with `o'. %{o*} would substitute this text, |
550 | including the space; thus, two arguments would be generated. | |
e1478c0f | 551 | %{S*&T*} likewise, but preserve order of S and T options (the order |
952f0048 | 552 | of S and T in the spec is not significant). Can be any number |
553 | of ampersand-separated variables; for each the wild card is | |
554 | optional. Useful for CPP as %{D*&U*&A*}. | |
805e22b2 | 555 | |
c68bcf58 | 556 | %{S:X} substitutes X, if the -S switch was given to GCC. |
557 | %{!S:X} substitutes X, if the -S switch was NOT given to GCC. | |
805e22b2 | 558 | %{S*:X} substitutes X if one or more switches whose names start |
c68bcf58 | 559 | with -S was given to GCC. Normally X is substituted only |
805e22b2 | 560 | once, no matter how many such switches appeared. However, |
561 | if %* appears somewhere in X, then X will be substituted | |
562 | once for each matching switch, with the %* replaced by the | |
1d9ad37b | 563 | part of that switch that matched the '*'. A space will be |
564 | appended after the last substition unless there is more | |
565 | text in current sequence. | |
805e22b2 | 566 | %{.S:X} substitutes X, if processing a file with suffix S. |
567 | %{!.S:X} substitutes X, if NOT processing a file with suffix S. | |
90e35d1a | 568 | %{,S:X} substitutes X, if processing a file which will use spec S. |
569 | %{!,S:X} substitutes X, if NOT processing a file which will use spec S. | |
d7ee9e9b | 570 | |
c68bcf58 | 571 | %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be |
90e35d1a | 572 | combined with '!', '.', ',', and '*' as above binding stronger |
573 | than the OR. | |
805e22b2 | 574 | If %* appears in X, all of the alternatives must be starred, and |
575 | only the first matching alternative is substituted. | |
9e46467d | 576 | %{%:function(args):X} |
577 | Call function named FUNCTION with args ARGS. If the function | |
578 | returns non-NULL, then X is substituted, if it returns | |
579 | NULL, it isn't substituted. | |
c68bcf58 | 580 | %{S:X; if S was given to GCC, substitutes X; |
581 | T:Y; else if T was given to GCC, substitutes Y; | |
805e22b2 | 582 | :D} else substitutes D. There can be as many clauses as you need. |
90e35d1a | 583 | This may be combined with '.', '!', ',', '|', and '*' as above. |
805e22b2 | 584 | |
8894538a | 585 | %(Spec) processes a specification defined in a specs file as *Spec: |
d7a9644e | 586 | |
805e22b2 | 587 | The conditional text X in a %{S:X} or similar construct may contain |
d7a9644e | 588 | other nested % constructs or spaces, or even newlines. They are |
805e22b2 | 589 | processed as usual, as described above. Trailing white space in X is |
590 | ignored. White space may also appear anywhere on the left side of the | |
591 | colon in these constructs, except between . or * and the corresponding | |
592 | word. | |
d7a9644e | 593 | |
b35329c7 | 594 | The -O, -f, -g, -m, and -W switches are handled specifically in these |
cde688ab | 595 | constructs. If another value of -O or the negated form of a -f, -m, or |
596 | -W switch is found later in the command line, the earlier switch | |
d870e215 | 597 | value is ignored, except with {S*} where S is just one letter; this |
598 | passes all matching options. | |
cde688ab | 599 | |
ae70654c | 600 | The character | at the beginning of the predicate text is used to indicate |
601 | that a command should be piped to the following command, but only if -pipe | |
602 | is specified. | |
d7a9644e | 603 | |
c68bcf58 | 604 | Note that it is built into GCC which switches take arguments and which |
d7a9644e | 605 | do not. You might think it would be useful to generalize this to |
606 | allow each compiler's spec to say which switches take arguments. But | |
c68bcf58 | 607 | this cannot be done in a consistent fashion. GCC cannot even decide |
d7a9644e | 608 | which input files have been specified without knowing which switches |
609 | take arguments, and it must know which input files to compile in order | |
610 | to tell which compilers to run. | |
611 | ||
c68bcf58 | 612 | GCC also knows implicitly that arguments starting in `-l' are to be |
d7a9644e | 613 | treated as compiler output files, and passed to the linker in their |
614 | proper position among the other output files. */ | |
615 | \f | |
537c4bc6 | 616 | /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */ |
d7a9644e | 617 | |
618 | /* config.h can define ASM_SPEC to provide extra args to the assembler | |
619 | or extra switch-translations. */ | |
620 | #ifndef ASM_SPEC | |
621 | #define ASM_SPEC "" | |
622 | #endif | |
623 | ||
624 | /* config.h can define ASM_FINAL_SPEC to run a post processor after | |
625 | the assembler has run. */ | |
626 | #ifndef ASM_FINAL_SPEC | |
b35329c7 | 627 | #define ASM_FINAL_SPEC \ |
628 | "%{gsplit-dwarf: \n\ | |
629 | objcopy --extract-dwo \ | |
630 | %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \ | |
631 | %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\ | |
632 | objcopy --strip-dwo \ | |
633 | %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \ | |
634 | }" | |
d7a9644e | 635 | #endif |
636 | ||
637 | /* config.h can define CPP_SPEC to provide extra args to the C preprocessor | |
638 | or extra switch-translations. */ | |
639 | #ifndef CPP_SPEC | |
640 | #define CPP_SPEC "" | |
641 | #endif | |
642 | ||
643 | /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus | |
644 | or extra switch-translations. */ | |
645 | #ifndef CC1_SPEC | |
646 | #define CC1_SPEC "" | |
647 | #endif | |
648 | ||
649 | /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus | |
650 | or extra switch-translations. */ | |
651 | #ifndef CC1PLUS_SPEC | |
652 | #define CC1PLUS_SPEC "" | |
653 | #endif | |
654 | ||
655 | /* config.h can define LINK_SPEC to provide extra args to the linker | |
656 | or extra switch-translations. */ | |
657 | #ifndef LINK_SPEC | |
658 | #define LINK_SPEC "" | |
659 | #endif | |
660 | ||
661 | /* config.h can define LIB_SPEC to override the default libraries. */ | |
662 | #ifndef LIB_SPEC | |
b7c87ff2 | 663 | #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}" |
664 | #endif | |
665 | ||
48b14f50 | 666 | /* When using -fsplit-stack we need to wrap pthread_create, in order |
667 | to initialize the stack guard. We always use wrapping, rather than | |
668 | shared library ordering, and we keep the wrapper function in | |
669 | libgcc. This is not yet a real spec, though it could become one; | |
670 | it is currently just stuffed into LINK_SPEC. FIXME: This wrapping | |
b1c06ff9 | 671 | only works with GNU ld and gold. */ |
e97f880e | 672 | #ifdef HAVE_GOLD_NON_DEFAULT_SPLIT_STACK |
673 | #define STACK_SPLIT_SPEC " %{fsplit-stack: -fuse-ld=gold --wrap=pthread_create}" | |
674 | #else | |
48b14f50 | 675 | #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}" |
e97f880e | 676 | #endif |
48b14f50 | 677 | |
6db5160a | 678 | #ifndef LIBASAN_SPEC |
30ded303 | 679 | #define STATIC_LIBASAN_LIBS \ |
680 | " %{static-libasan:%:include(libsanitizer.spec)%(link_libasan)}" | |
53486a83 | 681 | #ifdef LIBASAN_EARLY_SPEC |
30ded303 | 682 | #define LIBASAN_SPEC STATIC_LIBASAN_LIBS |
53486a83 | 683 | #elif defined(HAVE_LD_STATIC_DYNAMIC) |
6db5160a | 684 | #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \ |
6aea389d | 685 | "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \ |
30ded303 | 686 | STATIC_LIBASAN_LIBS |
6db5160a | 687 | #else |
30ded303 | 688 | #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS |
6db5160a | 689 | #endif |
690 | #endif | |
691 | ||
53486a83 | 692 | #ifndef LIBASAN_EARLY_SPEC |
693 | #define LIBASAN_EARLY_SPEC "" | |
694 | #endif | |
695 | ||
b077695d | 696 | #ifndef LIBTSAN_SPEC |
30ded303 | 697 | #define STATIC_LIBTSAN_LIBS \ |
698 | " %{static-libtsan:%:include(libsanitizer.spec)%(link_libtsan)}" | |
5f13745b | 699 | #ifdef LIBTSAN_EARLY_SPEC |
30ded303 | 700 | #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS |
5f13745b | 701 | #elif defined(HAVE_LD_STATIC_DYNAMIC) |
b077695d | 702 | #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \ |
5f13745b | 703 | "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \ |
30ded303 | 704 | STATIC_LIBTSAN_LIBS |
b077695d | 705 | #else |
30ded303 | 706 | #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS |
5f13745b | 707 | #endif |
b077695d | 708 | #endif |
5f13745b | 709 | |
710 | #ifndef LIBTSAN_EARLY_SPEC | |
711 | #define LIBTSAN_EARLY_SPEC "" | |
b077695d | 712 | #endif |
713 | ||
f8ff4a27 | 714 | #ifndef LIBLSAN_SPEC |
30ded303 | 715 | #define STATIC_LIBLSAN_LIBS \ |
716 | " %{static-liblsan:%:include(libsanitizer.spec)%(link_liblsan)}" | |
baf369d7 | 717 | #ifdef LIBLSAN_EARLY_SPEC |
718 | #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS | |
719 | #elif defined(HAVE_LD_STATIC_DYNAMIC) | |
720 | #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \ | |
f8ff4a27 | 721 | "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \ |
baf369d7 | 722 | STATIC_LIBLSAN_LIBS |
f8ff4a27 | 723 | #else |
baf369d7 | 724 | #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS |
f8ff4a27 | 725 | #endif |
726 | #endif | |
727 | ||
baf369d7 | 728 | #ifndef LIBLSAN_EARLY_SPEC |
729 | #define LIBLSAN_EARLY_SPEC "" | |
730 | #endif | |
731 | ||
9e46467d | 732 | #ifndef LIBUBSAN_SPEC |
30ded303 | 733 | #define STATIC_LIBUBSAN_LIBS \ |
734 | " %{static-libubsan:%:include(libsanitizer.spec)%(link_libubsan)}" | |
f8ff4a27 | 735 | #ifdef HAVE_LD_STATIC_DYNAMIC |
9e46467d | 736 | #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \ |
737 | "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \ | |
30ded303 | 738 | STATIC_LIBUBSAN_LIBS |
9e46467d | 739 | #else |
30ded303 | 740 | #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS |
9e46467d | 741 | #endif |
742 | #endif | |
743 | ||
4185c905 | 744 | /* Linker options for compressed debug sections. */ |
745 | #if HAVE_LD_COMPRESS_DEBUG == 0 | |
746 | /* No linker support. */ | |
747 | #define LINK_COMPRESS_DEBUG_SPEC \ | |
748 | " %{gz*:%e-gz is not supported in this configuration} " | |
749 | #elif HAVE_LD_COMPRESS_DEBUG == 1 | |
750 | /* GNU style on input, GNU ld options. Reject, not useful. */ | |
751 | #define LINK_COMPRESS_DEBUG_SPEC \ | |
752 | " %{gz*:%e-gz is not supported in this configuration} " | |
753 | #elif HAVE_LD_COMPRESS_DEBUG == 2 | |
754 | /* GNU style, GNU gold options. */ | |
755 | #define LINK_COMPRESS_DEBUG_SPEC \ | |
756 | " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \ | |
757 | " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \ | |
758 | " %{gz=zlib:%e-gz=zlib is not supported in this configuration} " | |
759 | #elif HAVE_LD_COMPRESS_DEBUG == 3 | |
760 | /* ELF gABI style. */ | |
761 | #define LINK_COMPRESS_DEBUG_SPEC \ | |
762 | " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \ | |
763 | " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \ | |
764 | " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} " | |
765 | #else | |
766 | #error Unknown value for HAVE_LD_COMPRESS_DEBUG. | |
767 | #endif | |
768 | ||
b7c87ff2 | 769 | /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is |
770 | included. */ | |
771 | #ifndef LIBGCC_SPEC | |
ecbfdc87 | 772 | #if defined(REAL_LIBGCC_SPEC) |
773 | #define LIBGCC_SPEC REAL_LIBGCC_SPEC | |
03829d4a | 774 | #elif defined(LINK_LIBGCC_SPECIAL_1) |
b7c87ff2 | 775 | /* Have gcc do the search for libgcc.a. */ |
21eaebc3 | 776 | #define LIBGCC_SPEC "libgcc.a%s" |
b7c87ff2 | 777 | #else |
21eaebc3 | 778 | #define LIBGCC_SPEC "-lgcc" |
b7c87ff2 | 779 | #endif |
d7a9644e | 780 | #endif |
781 | ||
782 | /* config.h can define STARTFILE_SPEC to override the default crt0 files. */ | |
783 | #ifndef STARTFILE_SPEC | |
784 | #define STARTFILE_SPEC \ | |
995c1b4d | 785 | "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}" |
d7a9644e | 786 | #endif |
787 | ||
d7a9644e | 788 | /* config.h can define ENDFILE_SPEC to override the default crtn files. */ |
789 | #ifndef ENDFILE_SPEC | |
790 | #define ENDFILE_SPEC "" | |
791 | #endif | |
792 | ||
0c787992 | 793 | #ifndef LINKER_NAME |
794 | #define LINKER_NAME "collect2" | |
795 | #endif | |
796 | ||
5f1f2de5 | 797 | #ifdef HAVE_AS_DEBUG_PREFIX_MAP |
798 | #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}" | |
799 | #else | |
800 | #define ASM_MAP "" | |
801 | #endif | |
802 | ||
4185c905 | 803 | /* Assembler options for compressed debug sections. */ |
804 | #if HAVE_LD_COMPRESS_DEBUG < 2 | |
805 | /* Reject if the linker cannot write compressed debug sections. */ | |
806 | #define ASM_COMPRESS_DEBUG_SPEC \ | |
807 | " %{gz*:%e-gz is not supported in this configuration} " | |
808 | #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */ | |
809 | #if HAVE_AS_COMPRESS_DEBUG == 0 | |
810 | /* No assembler support. Ignore silently. */ | |
811 | #define ASM_COMPRESS_DEBUG_SPEC \ | |
812 | " %{gz*:} " | |
813 | #elif HAVE_AS_COMPRESS_DEBUG == 1 | |
814 | /* GNU style, GNU as options. */ | |
815 | #define ASM_COMPRESS_DEBUG_SPEC \ | |
816 | " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \ | |
817 | " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \ | |
818 | " %{gz=zlib:%e-gz=zlib is not supported in this configuration} " | |
819 | #elif HAVE_AS_COMPRESS_DEBUG == 2 | |
820 | /* ELF gABI style. */ | |
821 | #define ASM_COMPRESS_DEBUG_SPEC \ | |
822 | " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \ | |
823 | " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \ | |
824 | " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} " | |
825 | #else | |
826 | #error Unknown value for HAVE_AS_COMPRESS_DEBUG. | |
827 | #endif | |
828 | #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */ | |
829 | ||
1a6f9700 | 830 | /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g' |
831 | to the assembler. */ | |
832 | #ifndef ASM_DEBUG_SPEC | |
82505826 | 833 | # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \ |
834 | && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG) | |
5f1f2de5 | 835 | # define ASM_DEBUG_SPEC \ |
836 | (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \ | |
14234f77 | 837 | ? "%{%:debug-level-gt(0):" \ |
838 | "%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \ | |
839 | : "%{%:debug-level-gt(0):" \ | |
840 | "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP) | |
82505826 | 841 | # else |
842 | # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG) | |
14234f77 | 843 | # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gstabs}}" ASM_MAP |
82505826 | 844 | # endif |
845 | # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) | |
14234f77 | 846 | # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gdwarf2}}" ASM_MAP |
1a6f9700 | 847 | # endif |
1a6f9700 | 848 | # endif |
849 | #endif | |
a6a0d17a | 850 | #ifndef ASM_DEBUG_SPEC |
851 | # define ASM_DEBUG_SPEC "" | |
852 | #endif | |
1a6f9700 | 853 | |
1cf79a1a | 854 | /* Here is the spec for running the linker, after compiling all files. */ |
855 | ||
da98d114 | 856 | /* This is overridable by the target in case they need to specify the |
857 | -lgcc and -lc order specially, yet not require them to override all | |
858 | of LINK_COMMAND_SPEC. */ | |
859 | #ifndef LINK_GCC_C_SEQUENCE_SPEC | |
860 | #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G" | |
861 | #endif | |
862 | ||
0d55f4d0 | 863 | #ifndef LINK_SSP_SPEC |
864 | #ifdef TARGET_LIBC_PROVIDES_SSP | |
f1c9126b | 865 | #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \ |
866 | "|fstack-protector-strong|fstack-protector-explicit:}" | |
0d55f4d0 | 867 | #else |
f1c9126b | 868 | #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \ |
869 | "|fstack-protector-strong|fstack-protector-explicit" \ | |
870 | ":-lssp_nonshared -lssp}" | |
0d55f4d0 | 871 | #endif |
872 | #endif | |
873 | ||
e9abca4f | 874 | #ifdef ENABLE_DEFAULT_PIE |
875 | #define NO_PIE_SPEC "no-pie|static" | |
876 | #define PIE_SPEC NO_PIE_SPEC "|r|shared:;" | |
877 | #define NO_FPIE1_SPEC "fno-pie" | |
878 | #define FPIE1_SPEC NO_FPIE1_SPEC ":;" | |
879 | #define NO_FPIE2_SPEC "fno-PIE" | |
880 | #define FPIE2_SPEC NO_FPIE2_SPEC ":;" | |
881 | #define NO_FPIE_SPEC NO_FPIE1_SPEC "|" NO_FPIE2_SPEC | |
882 | #define FPIE_SPEC NO_FPIE_SPEC ":;" | |
883 | #define NO_FPIC1_SPEC "fno-pic" | |
884 | #define FPIC1_SPEC NO_FPIC1_SPEC ":;" | |
885 | #define NO_FPIC2_SPEC "fno-PIC" | |
886 | #define FPIC2_SPEC NO_FPIC2_SPEC ":;" | |
887 | #define NO_FPIC_SPEC NO_FPIC1_SPEC "|" NO_FPIC2_SPEC | |
888 | #define FPIC_SPEC NO_FPIC_SPEC ":;" | |
889 | #define NO_FPIE1_AND_FPIC1_SPEC NO_FPIE1_SPEC "|" NO_FPIC1_SPEC | |
890 | #define FPIE1_OR_FPIC1_SPEC NO_FPIE1_AND_FPIC1_SPEC ":;" | |
891 | #define NO_FPIE2_AND_FPIC2_SPEC NO_FPIE2_SPEC "|" NO_FPIC2_SPEC | |
892 | #define FPIE2_OR_FPIC2_SPEC NO_FPIE2_AND_FPIC2_SPEC ":;" | |
893 | #define NO_FPIE_AND_FPIC_SPEC NO_FPIE_SPEC "|" NO_FPIC_SPEC | |
894 | #define FPIE_OR_FPIC_SPEC NO_FPIE_AND_FPIC_SPEC ":;" | |
895 | #else | |
896 | #define PIE_SPEC "pie" | |
897 | #define NO_PIE_SPEC PIE_SPEC "|r|shared:;" | |
898 | #define FPIE1_SPEC "fpie" | |
899 | #define NO_FPIE1_SPEC FPIE1_SPEC ":;" | |
900 | #define FPIE2_SPEC "fPIE" | |
901 | #define NO_FPIE2_SPEC FPIE2_SPEC ":;" | |
902 | #define FPIE_SPEC FPIE1_SPEC "|" FPIE2_SPEC | |
903 | #define NO_FPIE_SPEC FPIE_SPEC ":;" | |
904 | #define FPIC1_SPEC "fpic" | |
905 | #define NO_FPIC1_SPEC FPIC1_SPEC ":;" | |
906 | #define FPIC2_SPEC "fPIC" | |
907 | #define NO_FPIC2_SPEC FPIC2_SPEC ":;" | |
908 | #define FPIC_SPEC FPIC1_SPEC "|" FPIC2_SPEC | |
909 | #define NO_FPIC_SPEC FPIC_SPEC ":;" | |
910 | #define FPIE1_OR_FPIC1_SPEC FPIE1_SPEC "|" FPIC1_SPEC | |
911 | #define NO_FPIE1_AND_FPIC1_SPEC FPIE1_OR_FPIC1_SPEC ":;" | |
912 | #define FPIE2_OR_FPIC2_SPEC FPIE2_SPEC "|" FPIC2_SPEC | |
913 | #define NO_FPIE2_AND_FPIC2_SPEC FPIE1_OR_FPIC2_SPEC ":;" | |
914 | #define FPIE_OR_FPIC_SPEC FPIE_SPEC "|" FPIC_SPEC | |
915 | #define NO_FPIE_AND_FPIC_SPEC FPIE_OR_FPIC_SPEC ":;" | |
916 | #endif | |
917 | ||
c3ce66b0 | 918 | #ifndef LINK_PIE_SPEC |
919 | #ifdef HAVE_LD_PIE | |
80fc7cb7 | 920 | #ifndef LD_PIE_SPEC |
e9abca4f | 921 | #define LD_PIE_SPEC "-pie" |
80fc7cb7 | 922 | #endif |
c3ce66b0 | 923 | #else |
e9abca4f | 924 | #define LD_PIE_SPEC "" |
c3ce66b0 | 925 | #endif |
e9abca4f | 926 | #define LINK_PIE_SPEC "%{no-pie:} " "%{" PIE_SPEC ":" LD_PIE_SPEC "} " |
c3ce66b0 | 927 | #endif |
928 | ||
8271b966 | 929 | #ifndef LINK_BUILDID_SPEC |
930 | # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID) | |
931 | # define LINK_BUILDID_SPEC "%{!r:--build-id} " | |
932 | # endif | |
933 | #endif | |
934 | ||
c5f741b3 | 935 | /* Conditional to test whether the LTO plugin is used or not. |
0f8cfb36 | 936 | FIXME: For slim LTO we will need to enable plugin unconditionally. This |
937 | still cause problems with PLUGIN_LD != LD and when plugin is built but | |
938 | not useable. For GCC 4.6 we don't support slim LTO and thus we can enable | |
939 | plugin only when LTO is enabled. We still honor explicit | |
c5f741b3 | 940 | -fuse-linker-plugin if the linker used understands -plugin. */ |
941 | ||
942 | /* The linker has some plugin support. */ | |
943 | #if HAVE_LTO_PLUGIN > 0 | |
944 | /* The linker used has full plugin support, use LTO plugin by default. */ | |
945 | #if HAVE_LTO_PLUGIN == 2 | |
958d7687 | 946 | #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto" |
0f8cfb36 | 947 | #define PLUGIN_COND_CLOSE "}" |
de4d280b | 948 | #else |
c5f741b3 | 949 | /* The linker used has limited plugin support, use LTO plugin with explicit |
950 | -fuse-linker-plugin. */ | |
de4d280b | 951 | #define PLUGIN_COND "fuse-linker-plugin" |
0f8cfb36 | 952 | #define PLUGIN_COND_CLOSE "" |
de4d280b | 953 | #endif |
c5f741b3 | 954 | #define LINK_PLUGIN_SPEC \ |
f03df321 | 955 | "%{" PLUGIN_COND": \ |
c5f741b3 | 956 | -plugin %(linker_plugin_file) \ |
957 | -plugin-opt=%(lto_wrapper) \ | |
958 | -plugin-opt=-fresolution=%u.res \ | |
959 | %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \ | |
f03df321 | 960 | }" PLUGIN_COND_CLOSE |
c5f741b3 | 961 | #else |
962 | /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */ | |
963 | #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\ | |
964 | %e-fuse-linker-plugin is not supported in this configuration}" | |
965 | #endif | |
de4d280b | 966 | |
5f13745b | 967 | /* Linker command line options for -fsanitize= early on the command line. */ |
968 | #ifndef SANITIZER_EARLY_SPEC | |
969 | #define SANITIZER_EARLY_SPEC "\ | |
9e46467d | 970 | %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \ |
baf369d7 | 971 | %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \ |
972 | %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}" | |
5f13745b | 973 | #endif |
974 | ||
975 | /* Linker command line options for -fsanitize= late on the command line. */ | |
976 | #ifndef SANITIZER_SPEC | |
977 | #define SANITIZER_SPEC "\ | |
9e46467d | 978 | %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\ |
3e1dd01e | 979 | %{static:%ecannot specify -static with -fsanitize=address}}\ |
9e46467d | 980 | %{%:sanitize(thread):" LIBTSAN_SPEC "\ |
9bb6ab3b | 981 | %{static:%ecannot specify -static with -fsanitize=thread}}\ |
f8ff4a27 | 982 | %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\ |
983 | %{%:sanitize(leak):" LIBLSAN_SPEC "}}}" | |
5f13745b | 984 | #endif |
8271b966 | 985 | |
0ed9e37f | 986 | #ifndef POST_LINK_SPEC |
987 | #define POST_LINK_SPEC "" | |
988 | #endif | |
989 | ||
b710ec85 | 990 | /* This is the spec to use, once the code for creating the vtable |
991 | verification runtime library, libvtv.so, has been created. Currently | |
992 | the vtable verification runtime functions are in libstdc++, so we use | |
993 | the spec just below this one. */ | |
994 | #ifndef VTABLE_VERIFICATION_SPEC | |
940c7236 | 995 | #if ENABLE_VTABLE_VERIFY |
b710ec85 | 996 | #define VTABLE_VERIFICATION_SPEC "\ |
997 | %{!nostdlib:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\ | |
998 | %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}" | |
940c7236 | 999 | #else |
1000 | #define VTABLE_VERIFICATION_SPEC "\ | |
1001 | %{fvtable-verify=none:} \ | |
1002 | %{fvtable-verify=std: \ | |
1003 | %e-fvtable-verify=std is not supported in this configuration} \ | |
1004 | %{fvtable-verify=preinit: \ | |
1005 | %e-fvtable-verify=preinit is not supported in this configuration}" | |
1006 | #endif | |
b710ec85 | 1007 | #endif |
1008 | ||
202baac8 | 1009 | #ifndef CHKP_SPEC |
1010 | #define CHKP_SPEC "" | |
1011 | #endif | |
1012 | ||
1cf79a1a | 1013 | /* -u* was put back because both BSD and SysV seem to support it. */ |
1014 | /* %{static:} simply prevents an error message if the target machine | |
1015 | doesn't handle -static. */ | |
1016 | /* We want %{T*} after %{L*} and %D so that it can be used to specify linker | |
1017 | scripts which exist in user specified directories, or in standard | |
1018 | directories. */ | |
cbcf2791 | 1019 | /* We pass any -flto flags on to the linker, which is expected |
7bfefa9d | 1020 | to understand them. In practice, this means it had better be collect2. */ |
455188e9 | 1021 | /* %{e*} includes -export-dynamic; see comment in common.opt. */ |
1cf79a1a | 1022 | #ifndef LINK_COMMAND_SPEC |
1023 | #define LINK_COMMAND_SPEC "\ | |
1024 | %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\ | |
c5f741b3 | 1025 | %(linker) " \ |
1026 | LINK_PLUGIN_SPEC \ | |
5f13745b | 1027 | "%{flto|flto=*:%<fcompare-debug*} \ |
07879720 | 1028 | %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \ |
4185c905 | 1029 | "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \ |
1030 | "%X %{o*} %{e*} %{N} %{n} %{r}\ | |
08de21a4 | 1031 | %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} \ |
1032 | %{static:} %{L*} %(mfwrap) %(link_libgcc) " \ | |
1033 | VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o " CHKP_SPEC " \ | |
5814ddcd | 1034 | %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\ |
1b316d69 | 1035 | %:include(libgomp.spec)%(link_gomp)}\ |
7b300408 | 1036 | %{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}\ |
9a8d01ee | 1037 | %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\ |
48b14f50 | 1038 | %(mflib) " STACK_SPLIT_SPEC "\ |
5f13745b | 1039 | %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \ |
b21d5608 | 1040 | %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\ |
0ed9e37f | 1041 | %{!nostdlib:%{!nostartfiles:%E}} %{T*} \n%(post_link) }}}}}}" |
1cf79a1a | 1042 | #endif |
1043 | ||
1044 | #ifndef LINK_LIBGCC_SPEC | |
03829d4a | 1045 | /* Generate -L options for startfile prefix list. */ |
1046 | # define LINK_LIBGCC_SPEC "%D" | |
1cf79a1a | 1047 | #endif |
1048 | ||
4ae4e5e8 | 1049 | #ifndef STARTFILE_PREFIX_SPEC |
1050 | # define STARTFILE_PREFIX_SPEC "" | |
1051 | #endif | |
1052 | ||
b6bcc48f | 1053 | #ifndef SYSROOT_SPEC |
1054 | # define SYSROOT_SPEC "--sysroot=%R" | |
1055 | #endif | |
1056 | ||
4ea70922 | 1057 | #ifndef SYSROOT_SUFFIX_SPEC |
1058 | # define SYSROOT_SUFFIX_SPEC "" | |
1059 | #endif | |
1060 | ||
1061 | #ifndef SYSROOT_HEADERS_SUFFIX_SPEC | |
1062 | # define SYSROOT_HEADERS_SUFFIX_SPEC "" | |
1063 | #endif | |
1064 | ||
5641963c | 1065 | static const char *asm_debug = ASM_DEBUG_SPEC; |
e772a198 | 1066 | static const char *cpp_spec = CPP_SPEC; |
e772a198 | 1067 | static const char *cc1_spec = CC1_SPEC; |
1068 | static const char *cc1plus_spec = CC1PLUS_SPEC; | |
da98d114 | 1069 | static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC; |
0d55f4d0 | 1070 | static const char *link_ssp_spec = LINK_SSP_SPEC; |
e772a198 | 1071 | static const char *asm_spec = ASM_SPEC; |
1072 | static const char *asm_final_spec = ASM_FINAL_SPEC; | |
1073 | static const char *link_spec = LINK_SPEC; | |
1074 | static const char *lib_spec = LIB_SPEC; | |
1e8e9920 | 1075 | static const char *link_gomp_spec = ""; |
e772a198 | 1076 | static const char *libgcc_spec = LIBGCC_SPEC; |
1077 | static const char *endfile_spec = ENDFILE_SPEC; | |
1078 | static const char *startfile_spec = STARTFILE_SPEC; | |
e772a198 | 1079 | static const char *linker_name_spec = LINKER_NAME; |
7bfefa9d | 1080 | static const char *linker_plugin_file_spec = ""; |
1081 | static const char *lto_wrapper_spec = ""; | |
1082 | static const char *lto_gcc_spec = ""; | |
0ed9e37f | 1083 | static const char *post_link_spec = POST_LINK_SPEC; |
1cf79a1a | 1084 | static const char *link_command_spec = LINK_COMMAND_SPEC; |
1085 | static const char *link_libgcc_spec = LINK_LIBGCC_SPEC; | |
4ae4e5e8 | 1086 | static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC; |
b6bcc48f | 1087 | static const char *sysroot_spec = SYSROOT_SPEC; |
4ea70922 | 1088 | static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC; |
1089 | static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC; | |
bd3ce038 | 1090 | static const char *self_spec = ""; |
1cf79a1a | 1091 | |
1092 | /* Standard options to cpp, cc1, and as, to reduce duplication in specs. | |
1093 | There should be no need to override these in target dependent files, | |
1094 | but we need to copy them to the specs file so that newer versions | |
1095 | of the GCC driver can correctly drive older tool chains with the | |
1096 | appropriate -B options. */ | |
1097 | ||
62683efd | 1098 | /* When cpplib handles traditional preprocessing, get rid of this, and |
1099 | call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so | |
1100 | that we default the front end language better. */ | |
1cf79a1a | 1101 | static const char *trad_capable_cpp = |
f1a0bc73 | 1102 | "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}"; |
1cf79a1a | 1103 | |
eb95e7f7 | 1104 | /* We don't wrap .d files in %W{} since a missing .d file, and |
1105 | therefore no dependency entry, confuses make into thinking a .o | |
1106 | file that happens to exist is up-to-date. */ | |
a182c763 | 1107 | static const char *cpp_unique_options = |
f608fcb7 | 1108 | "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\ |
89c69892 | 1109 | %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\ |
1110 | %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\ | |
eb95e7f7 | 1111 | %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\ |
e238d235 | 1112 | %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\ |
a8c200f7 | 1113 | %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\ |
d6bff3e6 | 1114 | %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\ |
a8c200f7 | 1115 | %{H} %C %{D*&U*&A*} %{i*} %Z %i\ |
5ca8af9f | 1116 | %{E|M|MM:%W{o*}}"; |
a182c763 | 1117 | |
1118 | /* This contains cpp options which are common with cc1_options and are passed | |
39c188c5 | 1119 | only when preprocessing only to avoid duplication. We pass the cc1 spec |
1120 | options to the preprocessor so that it the cc1 spec may manipulate | |
1121 | options used to set target flags. Those special target flags settings may | |
1122 | in turn cause preprocessor symbols to be defined specially. */ | |
a182c763 | 1123 | static const char *cpp_options = |
52367767 | 1124 | "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\ |
14234f77 | 1125 | %{f*} %{g*:%{%:debug-level-gt(0):%{g*}\ |
1126 | %{!fno-working-directory:-fworking-directory}}} %{O*}\ | |
cc92bc82 | 1127 | %{undef} %{save-temps*:-fpch-preprocess}"; |
1cf79a1a | 1128 | |
4702fc25 | 1129 | /* This contains cpp options which are not passed when the preprocessor |
1130 | output will be used by another program. */ | |
1131 | static const char *cpp_debug_options = "%{d*}"; | |
1132 | ||
68f4c740 | 1133 | /* NB: This is shared amongst all front-ends, except for Ada. */ |
1cf79a1a | 1134 | static const char *cc1_options = |
1135 | "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ | |
d6bff3e6 | 1136 | %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\ |
9b091a73 | 1137 | %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\ |
71278019 | 1138 | %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \ |
1139 | %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \ | |
52367767 | 1140 | %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\ |
1ed9d5f5 | 1141 | %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\ |
3bfde2af | 1142 | %{Qn:-fno-ident} %{Qy:} %{-help:--help}\ |
5789e05b | 1143 | %{-target-help:--target-help}\ |
1144 | %{-version:--version}\ | |
1145 | %{-help=*:--help=%*}\ | |
655a58fa | 1146 | %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\ |
4ee9c684 | 1147 | %{fsyntax-only:-o %j} %{-param*}\ |
504acdf1 | 1148 | %{coverage:-fprofile-arcs -ftest-coverage}\ |
1149 | %{fprofile-arcs|fprofile-generate*|coverage:\ | |
1150 | %{!fprofile-update=single:\ | |
3af33bcf | 1151 | %{pthread:-fprofile-update=prefer-atomic}}}"; |
1cf79a1a | 1152 | |
1153 | static const char *asm_options = | |
a4a58ea8 | 1154 | "%{-target-help:%:print-asm-header()} " |
c6429fa9 | 1155 | #if HAVE_GNU_AS |
1156 | /* If GNU AS is used, then convert -w (no warnings), -I, and -v | |
1157 | to the assembler equivalents. */ | |
1158 | "%{v} %{w:-W} %{I*} " | |
1159 | #endif | |
4185c905 | 1160 | ASM_COMPRESS_DEBUG_SPEC |
c6429fa9 | 1161 | "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}"; |
709c4e1b | 1162 | |
99b02af1 | 1163 | static const char *invoke_as = |
805e22b2 | 1164 | #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT |
3e17769e | 1165 | "%{!fwpa*:\ |
7bfefa9d | 1166 | %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\ |
1167 | %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\ | |
1168 | }"; | |
805e22b2 | 1169 | #else |
3e17769e | 1170 | "%{!fwpa*:\ |
7bfefa9d | 1171 | %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\ |
1172 | %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\ | |
1173 | }"; | |
805e22b2 | 1174 | #endif |
99b02af1 | 1175 | |
709c4e1b | 1176 | /* Some compilers have limits on line lengths, and the multilib_select |
3d97d965 | 1177 | and/or multilib_matches strings can be very long, so we build them at |
1178 | run time. */ | |
709c4e1b | 1179 | static struct obstack multilib_obstack; |
e772a198 | 1180 | static const char *multilib_select; |
1181 | static const char *multilib_matches; | |
1182 | static const char *multilib_defaults; | |
1183 | static const char *multilib_exclusions; | |
7137cdac | 1184 | static const char *multilib_reuse; |
3d97d965 | 1185 | |
1186 | /* Check whether a particular argument is a default argument. */ | |
1187 | ||
1188 | #ifndef MULTILIB_DEFAULTS | |
1189 | #define MULTILIB_DEFAULTS { "" } | |
1190 | #endif | |
1191 | ||
026f2c7a | 1192 | static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS; |
d7a9644e | 1193 | |
73023f49 | 1194 | #ifndef DRIVER_SELF_SPECS |
1195 | #define DRIVER_SELF_SPECS "" | |
1196 | #endif | |
1197 | ||
4d07f291 | 1198 | /* Linking to libgomp implies pthreads. This is particularly important |
1e8e9920 | 1199 | for targets that use different start files and suchlike. */ |
1200 | #ifndef GOMP_SELF_SPECS | |
1b316d69 | 1201 | #define GOMP_SELF_SPECS \ |
5814ddcd | 1202 | "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \ |
ca4c3545 | 1203 | "-pthread}" |
1e8e9920 | 1204 | #endif |
1205 | ||
9a8d01ee | 1206 | /* Likewise for -fgnu-tm. */ |
1207 | #ifndef GTM_SELF_SPECS | |
1208 | #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}" | |
1209 | #endif | |
1210 | ||
7b300408 | 1211 | /* Likewise for -fcilkplus. */ |
1212 | #ifndef CILK_SELF_SPECS | |
1213 | #define CILK_SELF_SPECS "%{fcilkplus: -pthread}" | |
1214 | #endif | |
1215 | ||
1e8e9920 | 1216 | static const char *const driver_self_specs[] = { |
9845d120 | 1217 | "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns", |
7b300408 | 1218 | DRIVER_SELF_SPECS, CONFIGURE_SPECS, GOMP_SELF_SPECS, GTM_SELF_SPECS, |
1219 | CILK_SELF_SPECS | |
1e8e9920 | 1220 | }; |
73023f49 | 1221 | |
7dd97ab6 | 1222 | #ifndef OPTION_DEFAULT_SPECS |
1223 | #define OPTION_DEFAULT_SPECS { "", "" } | |
1224 | #endif | |
1225 | ||
1226 | struct default_spec | |
1227 | { | |
1228 | const char *name; | |
1229 | const char *spec; | |
1230 | }; | |
1231 | ||
1232 | static const struct default_spec | |
1233 | option_default_specs[] = { OPTION_DEFAULT_SPECS }; | |
1234 | ||
d4ea3b1f | 1235 | struct user_specs |
1236 | { | |
9d70d39c | 1237 | struct user_specs *next; |
e40d43cc | 1238 | const char *filename; |
9d70d39c | 1239 | }; |
1240 | ||
1241 | static struct user_specs *user_specs_head, *user_specs_tail; | |
1242 | ||
d7a9644e | 1243 | \f |
1244 | /* Record the mapping from file suffixes for compilation specs. */ | |
1245 | ||
1246 | struct compiler | |
1247 | { | |
e40d43cc | 1248 | const char *suffix; /* Use this compiler for input files |
d7a9644e | 1249 | whose names end in this suffix. */ |
6db05d3a | 1250 | |
1cf79a1a | 1251 | const char *spec; /* To use this compiler, run this spec. */ |
96842e40 | 1252 | |
1253 | const char *cpp_spec; /* If non-NULL, substitute this spec | |
1254 | for `%C', rather than the usual | |
1255 | cpp_spec. */ | |
365db11e | 1256 | const int combinable; /* If nonzero, compiler can deal with |
dc1dd09b | 1257 | multiple source files at once (IMA). */ |
365db11e | 1258 | const int needs_preprocessing; /* If nonzero, source files need to |
dc1dd09b | 1259 | be run through a preprocessor. */ |
d7a9644e | 1260 | }; |
1261 | ||
1262 | /* Pointer to a vector of `struct compiler' that gives the spec for | |
1263 | compiling a file, based on its suffix. | |
1264 | A file that does not end in any of these suffixes will be passed | |
1265 | unchanged to the loader and nothing else will be done to it. | |
1266 | ||
1267 | An entry containing two 0s is used to terminate the vector. | |
1268 | ||
1269 | If multiple entries match a file, the last matching one is used. */ | |
1270 | ||
1271 | static struct compiler *compilers; | |
1272 | ||
1273 | /* Number of entries in `compilers', not counting the null terminator. */ | |
1274 | ||
1275 | static int n_compilers; | |
1276 | ||
1277 | /* The default list of file name suffixes and their compilation specs. */ | |
1278 | ||
c077395f | 1279 | static const struct compiler default_compilers[] = |
d7a9644e | 1280 | { |
6e8b4b1d | 1281 | /* Add lists of suffixes of known languages here. If those languages |
0dbd1c74 | 1282 | were not present when we built the driver, we will hit these copies |
1283 | and be given a more meaningful error than "file not used since | |
6e8b4b1d | 1284 | linking is not done". */ |
dc1dd09b | 1285 | {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0}, |
9728bde3 | 1286 | {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0}, |
1287 | {".mii", "#Objective-C++", 0, 0, 0}, | |
2f2c6aee | 1288 | {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0}, |
1289 | {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0}, | |
dc1dd09b | 1290 | {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0}, |
1291 | {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0}, | |
1292 | {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0}, | |
00c6e780 | 1293 | {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0}, |
1294 | {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0}, | |
1295 | {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0}, | |
1296 | {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0}, | |
1297 | {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0}, | |
1298 | {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0}, | |
1299 | {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0}, | |
1300 | {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0}, | |
dc1dd09b | 1301 | {".r", "#Ratfor", 0, 0, 0}, |
1302 | {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0}, | |
1303 | {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0}, | |
1304 | {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0}, | |
e440a328 | 1305 | {".go", "#Go", 0, 1, 0}, |
6e8b4b1d | 1306 | /* Next come the entries for C. */ |
78d063c8 | 1307 | {".c", "@c", 0, 0, 1}, |
d7a9644e | 1308 | {"@c", |
99b02af1 | 1309 | /* cc1 has an integrated ISO C preprocessor. We should invoke the |
455730ef | 1310 | external preprocessor if -save-temps is given. */ |
3ae4c9f3 | 1311 | "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\ |
99b02af1 | 1312 | %{!E:%{!M:%{!MM:\ |
f1a0bc73 | 1313 | %{traditional:\ |
455730ef | 1314 | %eGNU C no longer supports -traditional without -E}\ |
78d063c8 | 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} \ | |
1318 | %(cc1_options)}\ | |
1319 | %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\ | |
1320 | cc1 %(cpp_unique_options) %(cc1_options)}}}\ | |
1321 | %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1}, | |
d7a9644e | 1322 | {"-", |
a5050534 | 1323 | "%{!E:%e-E or -x required when input is from standard input}\ |
dc1dd09b | 1324 | %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0}, |
1325 | {".h", "@c-header", 0, 0, 0}, | |
d7a9644e | 1326 | {"@c-header", |
573aba85 | 1327 | /* cc1 has an integrated ISO C preprocessor. We should invoke the |
1328 | external preprocessor if -save-temps is given. */ | |
1329 | "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\ | |
1330 | %{!E:%{!M:%{!MM:\ | |
cc92bc82 | 1331 | %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \ |
1332 | %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\ | |
1333 | cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \ | |
4e6a6999 | 1334 | %(cc1_options)\ |
9a26d403 | 1335 | %{!fsyntax-only:%{!S:-o %g.s} \ |
53a7bd71 | 1336 | %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\ |
1337 | %W{o*:--output-pch=%*}}%V}}\ | |
cc92bc82 | 1338 | %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\ |
573aba85 | 1339 | cc1 %(cpp_unique_options) %(cc1_options)\ |
9d9fe66a | 1340 | %{!fsyntax-only:%{!S:-o %g.s} \ |
53a7bd71 | 1341 | %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\ |
1342 | %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0}, | |
78d063c8 | 1343 | {".i", "@cpp-output", 0, 0, 0}, |
d7a9644e | 1344 | {"@cpp-output", |
60c10fe6 | 1345 | "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, |
871aed8a | 1346 | {".s", "@assembler", 0, 0, 0}, |
d7a9644e | 1347 | {"@assembler", |
871aed8a | 1348 | "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0}, |
1349 | {".sx", "@assembler-with-cpp", 0, 0, 0}, | |
1350 | {".S", "@assembler-with-cpp", 0, 0, 0}, | |
d7a9644e | 1351 | {"@assembler-with-cpp", |
805e22b2 | 1352 | #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT |
8d3e018c | 1353 | "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\ |
4702fc25 | 1354 | %{E|M|MM:%(cpp_debug_options)}\ |
805e22b2 | 1355 | %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\ |
1356 | as %(asm_debug) %(asm_options) %|.s %A }}}}" | |
1357 | #else | |
8d3e018c | 1358 | "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\ |
805e22b2 | 1359 | %{E|M|MM:%(cpp_debug_options)}\ |
1360 | %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\ | |
1361 | as %(asm_debug) %(asm_options) %m.s %A }}}}" | |
1362 | #endif | |
871aed8a | 1363 | , 0, 0, 0}, |
952f0048 | 1364 | |
45b17600 | 1365 | #include "specs.h" |
2358393e | 1366 | /* Mark end of table. */ |
dc1dd09b | 1367 | {0, 0, 0, 0, 0} |
d7a9644e | 1368 | }; |
1369 | ||
1370 | /* Number of elements in default_compilers, not counting the terminator. */ | |
1371 | ||
3585dac7 | 1372 | static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1; |
d7a9644e | 1373 | |
74c33122 | 1374 | typedef char *char_p; /* For DEF_VEC_P. */ |
74c33122 | 1375 | |
d7a9644e | 1376 | /* A vector of options to give to the linker. |
fcdc45aa | 1377 | These options are accumulated by %x, |
d7a9644e | 1378 | and substituted into the linker command with %X. */ |
f1f41a6c | 1379 | static vec<char_p> linker_options; |
69587571 | 1380 | |
1381 | /* A vector of options to give to the assembler. | |
1382 | These options are accumulated by -Wa, | |
391d9b6e | 1383 | and substituted into the assembler command with %Y. */ |
f1f41a6c | 1384 | static vec<char_p> assembler_options; |
391d9b6e | 1385 | |
1386 | /* A vector of options to give to the preprocessor. | |
1387 | These options are accumulated by -Wp, | |
1388 | and substituted into the preprocessor command with %Z. */ | |
f1f41a6c | 1389 | static vec<char_p> preprocessor_options; |
d7a9644e | 1390 | \f |
d7a9644e | 1391 | static char * |
952f0048 | 1392 | skip_whitespace (char *p) |
d7a9644e | 1393 | { |
1394 | while (1) | |
1395 | { | |
1396 | /* A fully-blank line is a delimiter in the SPEC file and shouldn't | |
1397 | be considered whitespace. */ | |
1398 | if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n') | |
1399 | return p + 1; | |
1400 | else if (*p == '\n' || *p == ' ' || *p == '\t') | |
1401 | p++; | |
1402 | else if (*p == '#') | |
1403 | { | |
026f2c7a | 1404 | while (*p != '\n') |
1405 | p++; | |
d7a9644e | 1406 | p++; |
1407 | } | |
1408 | else | |
1409 | break; | |
1410 | } | |
1411 | ||
1412 | return p; | |
1413 | } | |
bfb9bc39 | 1414 | /* Structures to keep track of prefixes to try when looking for files. */ |
1415 | ||
1416 | struct prefix_list | |
1417 | { | |
afe739a7 | 1418 | const char *prefix; /* String to prepend to the path. */ |
bfb9bc39 | 1419 | struct prefix_list *next; /* Next in linked list. */ |
1420 | int require_machine_suffix; /* Don't use without machine_suffix. */ | |
1421 | /* 2 means try both machine_suffix and just_machine_suffix. */ | |
c954ff02 | 1422 | int priority; /* Sort key - priority within list. */ |
1423 | int os_multilib; /* 1 if OS multilib scheme should be used, | |
1424 | 0 for GCC multilib scheme. */ | |
bfb9bc39 | 1425 | }; |
1426 | ||
1427 | struct path_prefix | |
1428 | { | |
1429 | struct prefix_list *plist; /* List of prefixes to try */ | |
1430 | int max_len; /* Max length of a prefix in PLIST */ | |
1431 | const char *name; /* Name of this list (used in config stuff) */ | |
1432 | }; | |
1433 | ||
1434 | /* List of prefixes to try when looking for executables. */ | |
1435 | ||
1436 | static struct path_prefix exec_prefixes = { 0, 0, "exec" }; | |
1437 | ||
1438 | /* List of prefixes to try when looking for startup (crt0) files. */ | |
1439 | ||
1440 | static struct path_prefix startfile_prefixes = { 0, 0, "startfile" }; | |
1441 | ||
1442 | /* List of prefixes to try when looking for include files. */ | |
1443 | ||
1444 | static struct path_prefix include_prefixes = { 0, 0, "include" }; | |
1445 | ||
1446 | /* Suffix to attach to directories searched for commands. | |
1447 | This looks like `MACHINE/VERSION/'. */ | |
1448 | ||
1449 | static const char *machine_suffix = 0; | |
1450 | ||
1451 | /* Suffix to attach to directories searched for commands. | |
1452 | This is just `MACHINE/'. */ | |
1453 | ||
1454 | static const char *just_machine_suffix = 0; | |
1455 | ||
1456 | /* Adjusted value of GCC_EXEC_PREFIX envvar. */ | |
1457 | ||
1458 | static const char *gcc_exec_prefix; | |
1459 | ||
9db45a87 | 1460 | /* Adjusted value of standard_libexec_prefix. */ |
1461 | ||
1462 | static const char *gcc_libexec_prefix; | |
1463 | ||
bfb9bc39 | 1464 | /* Default prefixes to attach to command names. */ |
1465 | ||
3c2ba0de | 1466 | #ifndef STANDARD_STARTFILE_PREFIX_1 |
1467 | #define STANDARD_STARTFILE_PREFIX_1 "/lib/" | |
1468 | #endif | |
1469 | #ifndef STANDARD_STARTFILE_PREFIX_2 | |
1470 | #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/" | |
1471 | #endif | |
2f2c6aee | 1472 | |
29d774d0 | 1473 | #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */ |
bfb9bc39 | 1474 | #undef MD_EXEC_PREFIX |
1475 | #undef MD_STARTFILE_PREFIX | |
1476 | #undef MD_STARTFILE_PREFIX_1 | |
1477 | #endif | |
1478 | ||
1479 | /* If no prefixes defined, use the null string, which will disable them. */ | |
1480 | #ifndef MD_EXEC_PREFIX | |
1481 | #define MD_EXEC_PREFIX "" | |
1482 | #endif | |
1483 | #ifndef MD_STARTFILE_PREFIX | |
1484 | #define MD_STARTFILE_PREFIX "" | |
1485 | #endif | |
1486 | #ifndef MD_STARTFILE_PREFIX_1 | |
1487 | #define MD_STARTFILE_PREFIX_1 "" | |
1488 | #endif | |
1489 | ||
c4328bcc | 1490 | /* These directories are locations set at configure-time based on the |
1491 | --prefix option provided to configure. Their initializers are | |
1492 | defined in Makefile.in. These paths are not *directly* used when | |
1493 | gcc_exec_prefix is set because, in that case, we know where the | |
1494 | compiler has been installed, and use paths relative to that | |
1495 | location instead. */ | |
35823b64 | 1496 | static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX; |
c4328bcc | 1497 | static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX; |
1498 | static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX; | |
1499 | static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; | |
1500 | ||
1501 | /* For native compilers, these are well-known paths containing | |
1502 | components that may be provided by the system. For cross | |
1503 | compilers, these paths are not used. */ | |
bfb9bc39 | 1504 | static const char *md_exec_prefix = MD_EXEC_PREFIX; |
bfb9bc39 | 1505 | static const char *md_startfile_prefix = MD_STARTFILE_PREFIX; |
1506 | static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1; | |
87c75316 | 1507 | static const char *const standard_startfile_prefix_1 |
3c2ba0de | 1508 | = STANDARD_STARTFILE_PREFIX_1; |
1509 | static const char *const standard_startfile_prefix_2 | |
1510 | = STANDARD_STARTFILE_PREFIX_2; | |
bfb9bc39 | 1511 | |
c4328bcc | 1512 | /* A relative path to be used in finding the location of tools |
1513 | relative to the driver. */ | |
35823b64 | 1514 | static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX; |
9db45a87 | 1515 | |
77415571 | 1516 | /* A prefix to be used when this is an accelerator compiler. */ |
1517 | static const char *const accel_dir_suffix = ACCEL_DIR_SUFFIX; | |
1518 | ||
bfb9bc39 | 1519 | /* Subdirectory to use for locating libraries. Set by |
1520 | set_multilib_dir based on the compilation options. */ | |
1521 | ||
1522 | static const char *multilib_dir; | |
c954ff02 | 1523 | |
1524 | /* Subdirectory to use for locating libraries in OS conventions. Set by | |
1525 | set_multilib_dir based on the compilation options. */ | |
1526 | ||
1527 | static const char *multilib_os_dir; | |
77adc39e | 1528 | |
1529 | /* Subdirectory to use for locating libraries in multiarch conventions. Set by | |
1530 | set_multilib_dir based on the compilation options. */ | |
1531 | ||
1532 | static const char *multiarch_dir; | |
d7a9644e | 1533 | \f |
a92771b8 | 1534 | /* Structure to keep track of the specs that have been defined so far. |
88483769 | 1535 | These are accessed using %(specname) in a compiler or link |
1536 | spec. */ | |
d7a9644e | 1537 | |
1538 | struct spec_list | |
1539 | { | |
988c0ffe | 1540 | /* The following 2 fields must be first */ |
1541 | /* to allow EXTRA_SPECS to be initialized */ | |
e772a198 | 1542 | const char *name; /* name of the spec. */ |
1543 | const char *ptr; /* available ptr if no static pointer */ | |
988c0ffe | 1544 | |
1545 | /* The following fields are not initialized */ | |
1546 | /* by EXTRA_SPECS */ | |
e772a198 | 1547 | const char **ptr_spec; /* pointer to the spec itself. */ |
988c0ffe | 1548 | struct spec_list *next; /* Next spec in linked list. */ |
1549 | int name_len; /* length of the name */ | |
556cfe53 | 1550 | bool user_p; /* whether string come from file spec. */ |
1551 | bool alloc_p; /* whether string was allocated */ | |
26a4a13d | 1552 | const char *default_ptr; /* The default value of *ptr_spec. */ |
d7a9644e | 1553 | }; |
1554 | ||
988c0ffe | 1555 | #define INIT_STATIC_SPEC(NAME,PTR) \ |
26a4a13d | 1556 | { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false, \ |
1557 | *PTR } | |
988c0ffe | 1558 | |
d4ea3b1f | 1559 | /* List of statically defined specs. */ |
1560 | static struct spec_list static_specs[] = | |
1561 | { | |
988c0ffe | 1562 | INIT_STATIC_SPEC ("asm", &asm_spec), |
1a6f9700 | 1563 | INIT_STATIC_SPEC ("asm_debug", &asm_debug), |
988c0ffe | 1564 | INIT_STATIC_SPEC ("asm_final", &asm_final_spec), |
1cf79a1a | 1565 | INIT_STATIC_SPEC ("asm_options", &asm_options), |
99b02af1 | 1566 | INIT_STATIC_SPEC ("invoke_as", &invoke_as), |
988c0ffe | 1567 | INIT_STATIC_SPEC ("cpp", &cpp_spec), |
1cf79a1a | 1568 | INIT_STATIC_SPEC ("cpp_options", &cpp_options), |
4702fc25 | 1569 | INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options), |
a182c763 | 1570 | INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options), |
1cf79a1a | 1571 | INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp), |
988c0ffe | 1572 | INIT_STATIC_SPEC ("cc1", &cc1_spec), |
1cf79a1a | 1573 | INIT_STATIC_SPEC ("cc1_options", &cc1_options), |
988c0ffe | 1574 | INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec), |
da98d114 | 1575 | INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec), |
0d55f4d0 | 1576 | INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec), |
988c0ffe | 1577 | INIT_STATIC_SPEC ("endfile", &endfile_spec), |
1578 | INIT_STATIC_SPEC ("link", &link_spec), | |
1579 | INIT_STATIC_SPEC ("lib", &lib_spec), | |
1e8e9920 | 1580 | INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec), |
988c0ffe | 1581 | INIT_STATIC_SPEC ("libgcc", &libgcc_spec), |
1582 | INIT_STATIC_SPEC ("startfile", &startfile_spec), | |
988c0ffe | 1583 | INIT_STATIC_SPEC ("cross_compile", &cross_compile), |
1584 | INIT_STATIC_SPEC ("version", &compiler_version), | |
1585 | INIT_STATIC_SPEC ("multilib", &multilib_select), | |
1586 | INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults), | |
1587 | INIT_STATIC_SPEC ("multilib_extra", &multilib_extra), | |
1588 | INIT_STATIC_SPEC ("multilib_matches", &multilib_matches), | |
54518c3b | 1589 | INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions), |
c954ff02 | 1590 | INIT_STATIC_SPEC ("multilib_options", &multilib_options), |
7137cdac | 1591 | INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse), |
0c787992 | 1592 | INIT_STATIC_SPEC ("linker", &linker_name_spec), |
7bfefa9d | 1593 | INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec), |
1594 | INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec), | |
1595 | INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec), | |
0ed9e37f | 1596 | INIT_STATIC_SPEC ("post_link", &post_link_spec), |
1cf79a1a | 1597 | INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec), |
bfb9bc39 | 1598 | INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix), |
1599 | INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix), | |
1600 | INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1), | |
4ae4e5e8 | 1601 | INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec), |
b6bcc48f | 1602 | INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec), |
4ea70922 | 1603 | INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec), |
1604 | INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec), | |
bd3ce038 | 1605 | INIT_STATIC_SPEC ("self_spec", &self_spec), |
988c0ffe | 1606 | }; |
1607 | ||
1608 | #ifdef EXTRA_SPECS /* additional specs needed */ | |
6b40eba4 | 1609 | /* Structure to keep track of just the first two args of a spec_list. |
d4ea3b1f | 1610 | That is all that the EXTRA_SPECS macro gives us. */ |
6b40eba4 | 1611 | struct spec_list_1 |
1612 | { | |
e99c3a1d | 1613 | const char *const name; |
1614 | const char *const ptr; | |
6b40eba4 | 1615 | }; |
1616 | ||
e99c3a1d | 1617 | static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS }; |
026f2c7a | 1618 | static struct spec_list *extra_specs = (struct spec_list *) 0; |
988c0ffe | 1619 | #endif |
1620 | ||
1621 | /* List of dynamically allocates specs that have been defined so far. */ | |
1622 | ||
2c815aff | 1623 | static struct spec_list *specs = (struct spec_list *) 0; |
988c0ffe | 1624 | \f |
c21b3276 | 1625 | /* List of static spec functions. */ |
1626 | ||
1627 | static const struct spec_function static_spec_functions[] = | |
1628 | { | |
0305c755 | 1629 | { "getenv", getenv_spec_function }, |
c21b3276 | 1630 | { "if-exists", if_exists_spec_function }, |
68d74c02 | 1631 | { "if-exists-else", if_exists_else_spec_function }, |
9e46467d | 1632 | { "sanitize", sanitize_spec_function }, |
2288041e | 1633 | { "replace-outfile", replace_outfile_spec_function }, |
8127ab5d | 1634 | { "remove-outfile", remove_outfile_spec_function }, |
9b1f316f | 1635 | { "version-compare", version_compare_spec_function }, |
1e8e9920 | 1636 | { "include", include_spec_function }, |
19bc000d | 1637 | { "find-file", find_file_spec_function }, |
d6bff3e6 | 1638 | { "find-plugindir", find_plugindir_spec_function }, |
ceac8e8c | 1639 | { "print-asm-header", print_asm_header_spec_function }, |
71278019 | 1640 | { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function }, |
1641 | { "compare-debug-self-opt", compare_debug_self_opt_spec_function }, | |
1642 | { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function }, | |
280f8649 | 1643 | { "pass-through-libs", pass_through_libs_spec_func }, |
b35329c7 | 1644 | { "replace-extension", replace_extension_spec_func }, |
1b316d69 | 1645 | { "gt", greater_than_spec_func }, |
14234f77 | 1646 | { "debug-level-gt", debug_level_greater_than_spec_func }, |
4009b53f | 1647 | #ifdef EXTRA_SPEC_FUNCTIONS |
1648 | EXTRA_SPEC_FUNCTIONS | |
1649 | #endif | |
c21b3276 | 1650 | { 0, 0 } |
1651 | }; | |
1652 | ||
1653 | static int processing_spec_function; | |
1654 | \f | |
5cb4c868 | 1655 | /* Add appropriate libgcc specs to OBSTACK, taking into account |
1656 | various permutations of -shared-libgcc, -shared, and such. */ | |
1657 | ||
ecbfdc87 | 1658 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) |
be4e8b82 | 1659 | |
1660 | #ifndef USE_LD_AS_NEEDED | |
1661 | #define USE_LD_AS_NEEDED 0 | |
1662 | #endif | |
1663 | ||
5cb4c868 | 1664 | static void |
952f0048 | 1665 | init_gcc_specs (struct obstack *obstack, const char *shared_name, |
1666 | const char *static_name, const char *eh_name) | |
5cb4c868 | 1667 | { |
48285a3c | 1668 | char *buf; |
1669 | ||
e885c832 | 1670 | buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}" |
1671 | "%{!static:%{!static-libgcc:" | |
be4e8b82 | 1672 | #if USE_LD_AS_NEEDED |
e885c832 | 1673 | "%{!shared-libgcc:", |
8aaed91d | 1674 | static_name, " " LD_AS_NEEDED_OPTION " ", |
1675 | shared_name, " " LD_NO_AS_NEEDED_OPTION | |
e885c832 | 1676 | "}" |
1677 | "%{shared-libgcc:", | |
1678 | shared_name, "%{!shared: ", static_name, "}" | |
1679 | "}" | |
6a40149e | 1680 | #else |
e885c832 | 1681 | "%{!shared:" |
1682 | "%{!shared-libgcc:", static_name, " ", eh_name, "}" | |
1683 | "%{shared-libgcc:", shared_name, " ", static_name, "}" | |
1684 | "}" | |
0d6378a9 | 1685 | #ifdef LINK_EH_SPEC |
e885c832 | 1686 | "%{shared:" |
1687 | "%{shared-libgcc:", shared_name, "}" | |
1688 | "%{!shared-libgcc:", static_name, "}" | |
1689 | "}" | |
0d6378a9 | 1690 | #else |
e885c832 | 1691 | "%{shared:", shared_name, "}" |
6a40149e | 1692 | #endif |
0d6378a9 | 1693 | #endif |
e885c832 | 1694 | "}}", NULL); |
48285a3c | 1695 | |
1696 | obstack_grow (obstack, buf, strlen (buf)); | |
1697 | free (buf); | |
5cb4c868 | 1698 | } |
b51d5c7c | 1699 | #endif /* ENABLE_SHARED_LIBGCC */ |
5cb4c868 | 1700 | |
988c0ffe | 1701 | /* Initialize the specs lookup routines. */ |
1702 | ||
1703 | static void | |
a046944b | 1704 | init_spec (void) |
988c0ffe | 1705 | { |
2c815aff | 1706 | struct spec_list *next = (struct spec_list *) 0; |
1707 | struct spec_list *sl = (struct spec_list *) 0; | |
988c0ffe | 1708 | int i; |
1709 | ||
1710 | if (specs) | |
d4ea3b1f | 1711 | return; /* Already initialized. */ |
988c0ffe | 1712 | |
4582d741 | 1713 | if (verbose_flag) |
a922df2e | 1714 | fnotice (stderr, "Using built-in specs.\n"); |
4582d741 | 1715 | |
988c0ffe | 1716 | #ifdef EXTRA_SPECS |
25a1c410 | 1717 | extra_specs = XCNEWVEC (struct spec_list, ARRAY_SIZE (extra_specs_1)); |
2c815aff | 1718 | |
3098b2d3 | 1719 | for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--) |
810309ce | 1720 | { |
1721 | sl = &extra_specs[i]; | |
6b40eba4 | 1722 | sl->name = extra_specs_1[i].name; |
1723 | sl->ptr = extra_specs_1[i].ptr; | |
810309ce | 1724 | sl->next = next; |
1725 | sl->name_len = strlen (sl->name); | |
1726 | sl->ptr_spec = &sl->ptr; | |
26a4a13d | 1727 | gcc_assert (sl->ptr_spec != NULL); |
1728 | sl->default_ptr = sl->ptr; | |
810309ce | 1729 | next = sl; |
1730 | } | |
988c0ffe | 1731 | #endif |
1732 | ||
3098b2d3 | 1733 | for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--) |
988c0ffe | 1734 | { |
1735 | sl = &static_specs[i]; | |
1736 | sl->next = next; | |
1737 | next = sl; | |
1738 | } | |
1739 | ||
ecbfdc87 | 1740 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) |
43198b29 | 1741 | /* ??? If neither -shared-libgcc nor --static-libgcc was |
1742 | seen, then we should be making an educated guess. Some proposed | |
1743 | heuristics for ELF include: | |
1744 | ||
1745 | (1) If "-Wl,--export-dynamic", then it's a fair bet that the | |
1746 | program will be doing dynamic loading, which will likely | |
1747 | need the shared libgcc. | |
1748 | ||
1749 | (2) If "-ldl", then it's also a fair bet that we're doing | |
1750 | dynamic loading. | |
1751 | ||
1752 | (3) For each ET_DYN we're linking against (either through -lfoo | |
1753 | or /some/path/foo.so), check to see whether it or one of | |
424da949 | 1754 | its dependencies depends on a shared libgcc. |
43198b29 | 1755 | |
1756 | (4) If "-shared" | |
1757 | ||
1758 | If the runtime is fixed to look for program headers instead | |
1759 | of calling __register_frame_info at all, for each object, | |
1760 | use the shared libgcc if any EH symbol referenced. | |
1761 | ||
1762 | If crtstuff is fixed to not invoke __register_frame_info | |
1763 | automatically, for each object, use the shared libgcc if | |
1764 | any non-empty unwind section found. | |
1765 | ||
1766 | Doing any of this probably requires invoking an external program to | |
1767 | do the actual object file scanning. */ | |
1768 | { | |
1769 | const char *p = libgcc_spec; | |
1770 | int in_sep = 1; | |
3cfec666 | 1771 | |
6fba09a6 | 1772 | /* Transform the extant libgcc_spec into one that uses the shared libgcc |
43198b29 | 1773 | when given the proper command line arguments. */ |
1774 | while (*p) | |
1775 | { | |
3cfec666 | 1776 | if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0) |
43198b29 | 1777 | { |
5cb4c868 | 1778 | init_gcc_specs (&obstack, |
5cb4c868 | 1779 | "-lgcc_s" |
8bdf23ae | 1780 | #ifdef USE_LIBUNWIND_EXCEPTIONS |
1781 | " -lunwind" | |
805e22b2 | 1782 | #endif |
81e210c3 | 1783 | , |
1784 | "-lgcc", | |
1785 | "-lgcc_eh" | |
805e22b2 | 1786 | #ifdef USE_LIBUNWIND_EXCEPTIONS |
79f90e2b | 1787 | # ifdef HAVE_LD_STATIC_DYNAMIC |
e6937b3a | 1788 | " %{!static:" LD_STATIC_OPTION "} -lunwind" |
1789 | " %{!static:" LD_DYNAMIC_OPTION "}" | |
79f90e2b | 1790 | # else |
805e22b2 | 1791 | " -lunwind" |
79f90e2b | 1792 | # endif |
43198b29 | 1793 | #endif |
81e210c3 | 1794 | ); |
1795 | ||
21eaebc3 | 1796 | p += 5; |
43198b29 | 1797 | in_sep = 0; |
1798 | } | |
21eaebc3 | 1799 | else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0) |
43198b29 | 1800 | { |
1801 | /* Ug. We don't know shared library extensions. Hope that | |
1802 | systems that use this form don't do shared libraries. */ | |
5cb4c868 | 1803 | init_gcc_specs (&obstack, |
6ffda34c | 1804 | "-lgcc_s", |
0d6378a9 | 1805 | "libgcc.a%s", |
974df224 | 1806 | "libgcc_eh.a%s" |
1807 | #ifdef USE_LIBUNWIND_EXCEPTIONS | |
1808 | " -lunwind" | |
1809 | #endif | |
1810 | ); | |
21eaebc3 | 1811 | p += 10; |
43198b29 | 1812 | in_sep = 0; |
1813 | } | |
1814 | else | |
1815 | { | |
1816 | obstack_1grow (&obstack, *p); | |
1817 | in_sep = (*p == ' '); | |
1818 | p += 1; | |
1819 | } | |
1820 | } | |
1821 | ||
1822 | obstack_1grow (&obstack, '\0'); | |
4fac984f | 1823 | libgcc_spec = XOBFINISH (&obstack, const char *); |
43198b29 | 1824 | } |
1825 | #endif | |
c3f311c4 | 1826 | #ifdef USE_AS_TRADITIONAL_FORMAT |
1827 | /* Prepend "--traditional-format" to whatever asm_spec we had before. */ | |
1828 | { | |
e99c3a1d | 1829 | static const char tf[] = "--traditional-format "; |
9af5ce0c | 1830 | obstack_grow (&obstack, tf, sizeof (tf) - 1); |
c3f311c4 | 1831 | obstack_grow0 (&obstack, asm_spec, strlen (asm_spec)); |
4fac984f | 1832 | asm_spec = XOBFINISH (&obstack, const char *); |
c3f311c4 | 1833 | } |
1834 | #endif | |
8271b966 | 1835 | |
3cb9bbfa | 1836 | #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \ |
1837 | defined LINKER_HASH_STYLE | |
8271b966 | 1838 | # ifdef LINK_BUILDID_SPEC |
1839 | /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */ | |
9af5ce0c | 1840 | obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof (LINK_BUILDID_SPEC) - 1); |
8271b966 | 1841 | # endif |
1842 | # ifdef LINK_EH_SPEC | |
0d6378a9 | 1843 | /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */ |
9af5ce0c | 1844 | obstack_grow (&obstack, LINK_EH_SPEC, sizeof (LINK_EH_SPEC) - 1); |
3cb9bbfa | 1845 | # endif |
1846 | # ifdef LINKER_HASH_STYLE | |
1847 | /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had | |
1848 | before. */ | |
1849 | { | |
1850 | static const char hash_style[] = "--hash-style="; | |
9af5ce0c | 1851 | obstack_grow (&obstack, hash_style, sizeof (hash_style) - 1); |
1852 | obstack_grow (&obstack, LINKER_HASH_STYLE, sizeof (LINKER_HASH_STYLE) - 1); | |
3cb9bbfa | 1853 | obstack_1grow (&obstack, ' '); |
1854 | } | |
8271b966 | 1855 | # endif |
0d6378a9 | 1856 | obstack_grow0 (&obstack, link_spec, strlen (link_spec)); |
4fac984f | 1857 | link_spec = XOBFINISH (&obstack, const char *); |
0d6378a9 | 1858 | #endif |
43198b29 | 1859 | |
988c0ffe | 1860 | specs = sl; |
1861 | } | |
d7a9644e | 1862 | \f |
1863 | /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is | |
1864 | removed; If the spec starts with a + then SPEC is added to the end of the | |
a92771b8 | 1865 | current spec. */ |
d7a9644e | 1866 | |
1867 | static void | |
556cfe53 | 1868 | set_spec (const char *name, const char *spec, bool user_p) |
d7a9644e | 1869 | { |
1870 | struct spec_list *sl; | |
e772a198 | 1871 | const char *old_spec; |
988c0ffe | 1872 | int name_len = strlen (name); |
1873 | int i; | |
1874 | ||
d4ea3b1f | 1875 | /* If this is the first call, initialize the statically allocated specs. */ |
4582d741 | 1876 | if (!specs) |
1877 | { | |
2c815aff | 1878 | struct spec_list *next = (struct spec_list *) 0; |
3098b2d3 | 1879 | for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--) |
4582d741 | 1880 | { |
1881 | sl = &static_specs[i]; | |
1882 | sl->next = next; | |
1883 | next = sl; | |
1884 | } | |
1885 | specs = sl; | |
1886 | } | |
1887 | ||
d4ea3b1f | 1888 | /* See if the spec already exists. */ |
d7a9644e | 1889 | for (sl = specs; sl; sl = sl->next) |
988c0ffe | 1890 | if (name_len == sl->name_len && !strcmp (sl->name, name)) |
d7a9644e | 1891 | break; |
1892 | ||
1893 | if (!sl) | |
1894 | { | |
d4ea3b1f | 1895 | /* Not found - make it. */ |
4c36ffe6 | 1896 | sl = XNEW (struct spec_list); |
713829e9 | 1897 | sl->name = xstrdup (name); |
988c0ffe | 1898 | sl->name_len = name_len; |
1899 | sl->ptr_spec = &sl->ptr; | |
1900 | sl->alloc_p = 0; | |
1901 | *(sl->ptr_spec) = ""; | |
d7a9644e | 1902 | sl->next = specs; |
26a4a13d | 1903 | sl->default_ptr = NULL; |
d7a9644e | 1904 | specs = sl; |
1905 | } | |
1906 | ||
988c0ffe | 1907 | old_spec = *(sl->ptr_spec); |
274c11d8 | 1908 | *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1])) |
4e2023c8 | 1909 | ? concat (old_spec, spec + 1, NULL) |
713829e9 | 1910 | : xstrdup (spec)); |
8b351d3c | 1911 | |
4582d741 | 1912 | #ifdef DEBUG_SPECS |
1913 | if (verbose_flag) | |
a922df2e | 1914 | fnotice (stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec)); |
4582d741 | 1915 | #endif |
1916 | ||
d4ea3b1f | 1917 | /* Free the old spec. */ |
988c0ffe | 1918 | if (old_spec && sl->alloc_p) |
9af5ce0c | 1919 | free (CONST_CAST (char *, old_spec)); |
988c0ffe | 1920 | |
556cfe53 | 1921 | sl->user_p = user_p; |
1922 | sl->alloc_p = true; | |
d7a9644e | 1923 | } |
1924 | \f | |
1925 | /* Accumulate a command (program name and args), and run it. */ | |
1926 | ||
9d9edc85 | 1927 | typedef const char *const_char_p; /* For DEF_VEC_P. */ |
d7a9644e | 1928 | |
9d9edc85 | 1929 | /* Vector of pointers to arguments in the current line of specifications. */ |
d7a9644e | 1930 | |
f1f41a6c | 1931 | static vec<const_char_p> argbuf; |
d7a9644e | 1932 | |
a2000777 | 1933 | /* Were the options -c, -S or -E passed. */ |
89dfd38d | 1934 | static int have_c = 0; |
1935 | ||
1936 | /* Was the option -o passed. */ | |
1937 | static int have_o = 0; | |
1938 | ||
800e901e | 1939 | /* Was the option -E passed. */ |
1940 | static int have_E = 0; | |
1941 | ||
4d0069ee | 1942 | /* Pointer to output file name passed in with -o. */ |
1943 | static const char *output_file = 0; | |
1944 | ||
655a58fa | 1945 | /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated |
1946 | temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for | |
1947 | it here. */ | |
4576c73f | 1948 | |
1949 | static struct temp_name { | |
e40d43cc | 1950 | const char *suffix; /* suffix associated with the code. */ |
4576c73f | 1951 | int length; /* strlen (suffix). */ |
1952 | int unique; /* Indicates whether %g or %u/%U was used. */ | |
e40d43cc | 1953 | const char *filename; /* associated filename. */ |
4576c73f | 1954 | int filename_length; /* strlen (filename). */ |
1955 | struct temp_name *next; | |
1956 | } *temp_names; | |
1526a87c | 1957 | |
d7a9644e | 1958 | /* Number of commands executed so far. */ |
1959 | ||
1960 | static int execution_count; | |
1961 | ||
68360609 | 1962 | /* Number of commands that exited with a signal. */ |
1963 | ||
1964 | static int signal_count; | |
d7a9644e | 1965 | \f |
c21b3276 | 1966 | /* Allocate the argument vector. */ |
1967 | ||
1968 | static void | |
a046944b | 1969 | alloc_args (void) |
c21b3276 | 1970 | { |
f1f41a6c | 1971 | argbuf.create (10); |
c21b3276 | 1972 | } |
1973 | ||
d7a9644e | 1974 | /* Clear out the vector of arguments (after a command is executed). */ |
1975 | ||
1976 | static void | |
952f0048 | 1977 | clear_args (void) |
d7a9644e | 1978 | { |
f1f41a6c | 1979 | argbuf.truncate (0); |
d7a9644e | 1980 | } |
1981 | ||
1982 | /* Add one argument to the vector at the end. | |
1983 | This is done when a space is seen or at the end of the line. | |
1984 | If DELETE_ALWAYS is nonzero, the arg is a filename | |
1985 | and the file should be deleted eventually. | |
1986 | If DELETE_FAILURE is nonzero, the arg is a filename | |
1987 | and the file should be deleted if this compilation fails. */ | |
1988 | ||
1989 | static void | |
952f0048 | 1990 | store_arg (const char *arg, int delete_always, int delete_failure) |
d7a9644e | 1991 | { |
f1f41a6c | 1992 | argbuf.safe_push (arg); |
d7a9644e | 1993 | |
1994 | if (delete_always || delete_failure) | |
d9f0ee99 | 1995 | { |
1996 | const char *p; | |
1997 | /* If the temporary file we should delete is specified as | |
1998 | part of a joined argument extract the filename. */ | |
1999 | if (arg[0] == '-' | |
2000 | && (p = strrchr (arg, '='))) | |
2001 | arg = p + 1; | |
2002 | record_temp_file (arg, delete_always, delete_failure); | |
2003 | } | |
d7a9644e | 2004 | } |
2005 | \f | |
424da949 | 2006 | /* Load specs from a file name named FILENAME, replacing occurrences of |
2c815aff | 2007 | various different types of line-endings, \r\n, \n\r and just \r, with |
bee69028 | 2008 | a single \n. */ |
4582d741 | 2009 | |
026f2c7a | 2010 | static char * |
952f0048 | 2011 | load_specs (const char *filename) |
4582d741 | 2012 | { |
2013 | int desc; | |
2014 | int readlen; | |
2015 | struct stat statbuf; | |
2016 | char *buffer; | |
bee69028 | 2017 | char *buffer_p; |
2018 | char *specs; | |
2019 | char *specs_p; | |
4582d741 | 2020 | |
2021 | if (verbose_flag) | |
a922df2e | 2022 | fnotice (stderr, "Reading specs from %s\n", filename); |
4582d741 | 2023 | |
2024 | /* Open and stat the file. */ | |
2025 | desc = open (filename, O_RDONLY, 0); | |
2026 | if (desc < 0) | |
2027 | pfatal_with_name (filename); | |
2028 | if (stat (filename, &statbuf) < 0) | |
2029 | pfatal_with_name (filename); | |
2030 | ||
2031 | /* Read contents of file into BUFFER. */ | |
4c36ffe6 | 2032 | buffer = XNEWVEC (char, statbuf.st_size + 1); |
4582d741 | 2033 | readlen = read (desc, buffer, (unsigned) statbuf.st_size); |
2034 | if (readlen < 0) | |
2035 | pfatal_with_name (filename); | |
2036 | buffer[readlen] = 0; | |
2037 | close (desc); | |
2038 | ||
4c36ffe6 | 2039 | specs = XNEWVEC (char, readlen + 1); |
bee69028 | 2040 | specs_p = specs; |
2041 | for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++) | |
2042 | { | |
2043 | int skip = 0; | |
2044 | char c = *buffer_p; | |
2045 | if (c == '\r') | |
026f2c7a | 2046 | { |
2047 | if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */ | |
bee69028 | 2048 | skip = 1; |
026f2c7a | 2049 | else if (*(buffer_p + 1) == '\n') /* \r\n */ |
bee69028 | 2050 | skip = 1; |
2051 | else /* \r */ | |
2052 | c = '\n'; | |
2053 | } | |
2054 | if (! skip) | |
2055 | *specs_p++ = c; | |
2056 | } | |
2057 | *specs_p = '\0'; | |
2058 | ||
2059 | free (buffer); | |
2060 | return (specs); | |
2061 | } | |
2062 | ||
2063 | /* Read compilation specs from a file named FILENAME, | |
2064 | replacing the default ones. | |
2065 | ||
2066 | A suffix which starts with `*' is a definition for | |
2067 | one of the machine-specific sub-specs. The "suffix" should be | |
537c4bc6 | 2068 | *asm, *cc1, *cpp, *link, *startfile, etc. |
bee69028 | 2069 | The corresponding spec is stored in asm_spec, etc., |
2070 | rather than in the `compilers' vector. | |
2071 | ||
2072 | Anything invalid in the file is a fatal error. */ | |
2073 | ||
2074 | static void | |
556cfe53 | 2075 | read_specs (const char *filename, bool main_p, bool user_p) |
bee69028 | 2076 | { |
2077 | char *buffer; | |
19cb6b50 | 2078 | char *p; |
bee69028 | 2079 | |
2080 | buffer = load_specs (filename); | |
2081 | ||
4582d741 | 2082 | /* Scan BUFFER for specs, putting them in the vector. */ |
2083 | p = buffer; | |
2084 | while (1) | |
2085 | { | |
2086 | char *suffix; | |
2087 | char *spec; | |
2088 | char *in, *out, *p1, *p2, *p3; | |
2089 | ||
2090 | /* Advance P in BUFFER to the next nonblank nocomment line. */ | |
2091 | p = skip_whitespace (p); | |
2092 | if (*p == 0) | |
2093 | break; | |
2094 | ||
2095 | /* Is this a special command that starts with '%'? */ | |
2096 | /* Don't allow this for the main specs file, since it would | |
2097 | encourage people to overwrite it. */ | |
2098 | if (*p == '%' && !main_p) | |
2099 | { | |
2100 | p1 = p; | |
0dbd1c74 | 2101 | while (*p && *p != '\n') |
2102 | p++; | |
2103 | ||
026f2c7a | 2104 | /* Skip '\n'. */ |
2105 | p++; | |
4582d741 | 2106 | |
026f2c7a | 2107 | if (!strncmp (p1, "%include", sizeof ("%include") - 1) |
0dbd1c74 | 2108 | && (p1[sizeof "%include" - 1] == ' ' |
2109 | || p1[sizeof "%include" - 1] == '\t')) | |
4582d741 | 2110 | { |
2111 | char *new_filename; | |
2112 | ||
2113 | p1 += sizeof ("%include"); | |
0dbd1c74 | 2114 | while (*p1 == ' ' || *p1 == '\t') |
2115 | p1++; | |
4582d741 | 2116 | |
2117 | if (*p1++ != '<' || p[-2] != '>') | |
c05be867 | 2118 | fatal_error (input_location, |
2119 | "specs %%include syntax malformed after " | |
a922df2e | 2120 | "%ld characters", |
2121 | (long) (p1 - buffer + 1)); | |
4582d741 | 2122 | |
2123 | p[-2] = '\0'; | |
067277c3 | 2124 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true); |
556cfe53 | 2125 | read_specs (new_filename ? new_filename : p1, false, user_p); |
4582d741 | 2126 | continue; |
2127 | } | |
0dbd1c74 | 2128 | else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1) |
2129 | && (p1[sizeof "%include_noerr" - 1] == ' ' | |
2130 | || p1[sizeof "%include_noerr" - 1] == '\t')) | |
4582d741 | 2131 | { |
2132 | char *new_filename; | |
2133 | ||
0dbd1c74 | 2134 | p1 += sizeof "%include_noerr"; |
026f2c7a | 2135 | while (*p1 == ' ' || *p1 == '\t') |
2136 | p1++; | |
4582d741 | 2137 | |
2138 | if (*p1++ != '<' || p[-2] != '>') | |
c05be867 | 2139 | fatal_error (input_location, |
2140 | "specs %%include syntax malformed after " | |
a922df2e | 2141 | "%ld characters", |
2142 | (long) (p1 - buffer + 1)); | |
4582d741 | 2143 | |
2144 | p[-2] = '\0'; | |
067277c3 | 2145 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true); |
4582d741 | 2146 | if (new_filename) |
556cfe53 | 2147 | read_specs (new_filename, false, user_p); |
4582d741 | 2148 | else if (verbose_flag) |
a922df2e | 2149 | fnotice (stderr, "could not find specs file %s\n", p1); |
4582d741 | 2150 | continue; |
2151 | } | |
0dbd1c74 | 2152 | else if (!strncmp (p1, "%rename", sizeof "%rename" - 1) |
2153 | && (p1[sizeof "%rename" - 1] == ' ' | |
2154 | || p1[sizeof "%rename" - 1] == '\t')) | |
4582d741 | 2155 | { |
2156 | int name_len; | |
2157 | struct spec_list *sl; | |
1686d9b4 | 2158 | struct spec_list *newsl; |
4582d741 | 2159 | |
1686d9b4 | 2160 | /* Get original name. */ |
0dbd1c74 | 2161 | p1 += sizeof "%rename"; |
2162 | while (*p1 == ' ' || *p1 == '\t') | |
2163 | p1++; | |
2164 | ||
2c815aff | 2165 | if (! ISALPHA ((unsigned char) *p1)) |
c05be867 | 2166 | fatal_error (input_location, |
2167 | "specs %%rename syntax malformed after " | |
a922df2e | 2168 | "%ld characters", |
2169 | (long) (p1 - buffer)); | |
4582d741 | 2170 | |
2171 | p2 = p1; | |
2c815aff | 2172 | while (*p2 && !ISSPACE ((unsigned char) *p2)) |
0dbd1c74 | 2173 | p2++; |
2174 | ||
4582d741 | 2175 | if (*p2 != ' ' && *p2 != '\t') |
c05be867 | 2176 | fatal_error (input_location, |
2177 | "specs %%rename syntax malformed after " | |
a922df2e | 2178 | "%ld characters", |
2179 | (long) (p2 - buffer)); | |
4582d741 | 2180 | |
2181 | name_len = p2 - p1; | |
2182 | *p2++ = '\0'; | |
0dbd1c74 | 2183 | while (*p2 == ' ' || *p2 == '\t') |
2184 | p2++; | |
2185 | ||
2c815aff | 2186 | if (! ISALPHA ((unsigned char) *p2)) |
c05be867 | 2187 | fatal_error (input_location, |
2188 | "specs %%rename syntax malformed after " | |
a922df2e | 2189 | "%ld characters", |
2190 | (long) (p2 - buffer)); | |
4582d741 | 2191 | |
026f2c7a | 2192 | /* Get new spec name. */ |
4582d741 | 2193 | p3 = p2; |
2c815aff | 2194 | while (*p3 && !ISSPACE ((unsigned char) *p3)) |
0dbd1c74 | 2195 | p3++; |
2196 | ||
026f2c7a | 2197 | if (p3 != p - 1) |
c05be867 | 2198 | fatal_error (input_location, |
2199 | "specs %%rename syntax malformed after " | |
a922df2e | 2200 | "%ld characters", |
2201 | (long) (p3 - buffer)); | |
4582d741 | 2202 | *p3 = '\0'; |
2203 | ||
2204 | for (sl = specs; sl; sl = sl->next) | |
2205 | if (name_len == sl->name_len && !strcmp (sl->name, p1)) | |
2206 | break; | |
2207 | ||
2208 | if (!sl) | |
c05be867 | 2209 | fatal_error (input_location, |
2210 | "specs %s spec was not found to be renamed", p1); | |
4582d741 | 2211 | |
0dbd1c74 | 2212 | if (strcmp (p1, p2) == 0) |
4582d741 | 2213 | continue; |
2214 | ||
1686d9b4 | 2215 | for (newsl = specs; newsl; newsl = newsl->next) |
2216 | if (strcmp (newsl->name, p2) == 0) | |
c05be867 | 2217 | fatal_error (input_location, |
2218 | "%s: attempt to rename spec %qs to " | |
a8c464ac | 2219 | "already defined spec %qs", |
1686d9b4 | 2220 | filename, p1, p2); |
2221 | ||
4582d741 | 2222 | if (verbose_flag) |
2223 | { | |
a922df2e | 2224 | fnotice (stderr, "rename spec %s to %s\n", p1, p2); |
4582d741 | 2225 | #ifdef DEBUG_SPECS |
a922df2e | 2226 | fnotice (stderr, "spec is '%s'\n\n", *(sl->ptr_spec)); |
4582d741 | 2227 | #endif |
2228 | } | |
2229 | ||
556cfe53 | 2230 | set_spec (p2, *(sl->ptr_spec), user_p); |
4582d741 | 2231 | if (sl->alloc_p) |
e47a6f81 | 2232 | free (CONST_CAST (char *, *(sl->ptr_spec))); |
4582d741 | 2233 | |
2234 | *(sl->ptr_spec) = ""; | |
2235 | sl->alloc_p = 0; | |
2236 | continue; | |
2237 | } | |
2238 | else | |
c05be867 | 2239 | fatal_error (input_location, |
2240 | "specs unknown %% command after %ld characters", | |
a922df2e | 2241 | (long) (p1 - buffer)); |
4582d741 | 2242 | } |
2243 | ||
2244 | /* Find the colon that should end the suffix. */ | |
2245 | p1 = p; | |
0dbd1c74 | 2246 | while (*p1 && *p1 != ':' && *p1 != '\n') |
2247 | p1++; | |
2248 | ||
4582d741 | 2249 | /* The colon shouldn't be missing. */ |
2250 | if (*p1 != ':') | |
c05be867 | 2251 | fatal_error (input_location, |
2252 | "specs file malformed after %ld characters", | |
a922df2e | 2253 | (long) (p1 - buffer)); |
0dbd1c74 | 2254 | |
4582d741 | 2255 | /* Skip back over trailing whitespace. */ |
2256 | p2 = p1; | |
0dbd1c74 | 2257 | while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) |
2258 | p2--; | |
2259 | ||
4582d741 | 2260 | /* Copy the suffix to a string. */ |
2261 | suffix = save_string (p, p2 - p); | |
2262 | /* Find the next line. */ | |
2263 | p = skip_whitespace (p1 + 1); | |
2264 | if (p[1] == 0) | |
c05be867 | 2265 | fatal_error (input_location, |
2266 | "specs file malformed after %ld characters", | |
a922df2e | 2267 | (long) (p - buffer)); |
0dbd1c74 | 2268 | |
4582d741 | 2269 | p1 = p; |
623feb20 | 2270 | /* Find next blank line or end of string. */ |
2271 | while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0'))) | |
0dbd1c74 | 2272 | p1++; |
2273 | ||
4582d741 | 2274 | /* Specs end at the blank line and do not include the newline. */ |
2275 | spec = save_string (p, p1 - p); | |
2276 | p = p1; | |
2277 | ||
2278 | /* Delete backslash-newline sequences from the spec. */ | |
2279 | in = spec; | |
2280 | out = spec; | |
2281 | while (*in != 0) | |
2282 | { | |
2283 | if (in[0] == '\\' && in[1] == '\n') | |
2284 | in += 2; | |
2285 | else if (in[0] == '#') | |
0dbd1c74 | 2286 | while (*in && *in != '\n') |
2287 | in++; | |
2288 | ||
4582d741 | 2289 | else |
2290 | *out++ = *in++; | |
2291 | } | |
2292 | *out = 0; | |
2293 | ||
2294 | if (suffix[0] == '*') | |
2295 | { | |
2296 | if (! strcmp (suffix, "*link_command")) | |
2297 | link_command_spec = spec; | |
2298 | else | |
26a4a13d | 2299 | { |
2300 | set_spec (suffix + 1, spec, user_p); | |
2301 | free (spec); | |
2302 | } | |
4582d741 | 2303 | } |
2304 | else | |
2305 | { | |
2306 | /* Add this pair to the vector. */ | |
2307 | compilers | |
25a1c410 | 2308 | = XRESIZEVEC (struct compiler, compilers, n_compilers + 2); |
0dbd1c74 | 2309 | |
4582d741 | 2310 | compilers[n_compilers].suffix = suffix; |
1cf79a1a | 2311 | compilers[n_compilers].spec = spec; |
4582d741 | 2312 | n_compilers++; |
7f0b0c27 | 2313 | memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]); |
4582d741 | 2314 | } |
2315 | ||
2316 | if (*suffix == 0) | |
2317 | link_command_spec = spec; | |
2318 | } | |
2319 | ||
2320 | if (link_command_spec == 0) | |
c05be867 | 2321 | fatal_error (input_location, "spec file has no spec for linking"); |
26a4a13d | 2322 | |
2323 | XDELETEVEC (buffer); | |
4582d741 | 2324 | } |
2325 | \f | |
d7a9644e | 2326 | /* Record the names of temporary files we tell compilers to write, |
2327 | and delete them at the end of the run. */ | |
2328 | ||
774abee6 | 2329 | /* This is the common prefix we use to make temp file names. |
2330 | It is chosen once for each run of this program. | |
2331 | It is substituted into a spec by %g or %j. | |
2332 | Thus, all temp file names contain this prefix. | |
2333 | In practice, all temp file names start with this prefix. | |
2334 | ||
2335 | This prefix comes from the envvar TMPDIR if it is defined; | |
2336 | otherwise, from the P_tmpdir macro if that is defined; | |
2337 | otherwise, in /usr/tmp or /tmp; | |
2338 | or finally the current directory if all else fails. */ | |
2339 | ||
2340 | static const char *temp_filename; | |
2341 | ||
2342 | /* Length of the prefix. */ | |
2343 | ||
2344 | static int temp_filename_length; | |
2345 | ||
d7a9644e | 2346 | /* Define the list of temporary files to delete. */ |
2347 | ||
2348 | struct temp_file | |
2349 | { | |
e40d43cc | 2350 | const char *name; |
d7a9644e | 2351 | struct temp_file *next; |
2352 | }; | |
2353 | ||
2354 | /* Queue of files to delete on success or failure of compilation. */ | |
2355 | static struct temp_file *always_delete_queue; | |
2356 | /* Queue of files to delete on failure of compilation. */ | |
2357 | static struct temp_file *failure_delete_queue; | |
2358 | ||
2359 | /* Record FILENAME as a file to be deleted automatically. | |
2360 | ALWAYS_DELETE nonzero means delete it if all compilation succeeds; | |
2361 | otherwise delete it in any case. | |
2362 | FAIL_DELETE nonzero means delete it if a compilation step fails; | |
2363 | otherwise delete it in any case. */ | |
2364 | ||
833a5c07 | 2365 | void |
952f0048 | 2366 | record_temp_file (const char *filename, int always_delete, int fail_delete) |
d7a9644e | 2367 | { |
19cb6b50 | 2368 | char *const name = xstrdup (filename); |
d7a9644e | 2369 | |
2370 | if (always_delete) | |
2371 | { | |
19cb6b50 | 2372 | struct temp_file *temp; |
d7a9644e | 2373 | for (temp = always_delete_queue; temp; temp = temp->next) |
82715bcd | 2374 | if (! filename_cmp (name, temp->name)) |
b7cbf36d | 2375 | { |
2376 | free (name); | |
2377 | goto already1; | |
2378 | } | |
0dbd1c74 | 2379 | |
4c36ffe6 | 2380 | temp = XNEW (struct temp_file); |
d7a9644e | 2381 | temp->next = always_delete_queue; |
2382 | temp->name = name; | |
2383 | always_delete_queue = temp; | |
0dbd1c74 | 2384 | |
d7a9644e | 2385 | already1:; |
2386 | } | |
2387 | ||
2388 | if (fail_delete) | |
2389 | { | |
19cb6b50 | 2390 | struct temp_file *temp; |
d7a9644e | 2391 | for (temp = failure_delete_queue; temp; temp = temp->next) |
82715bcd | 2392 | if (! filename_cmp (name, temp->name)) |
ce0fdb91 | 2393 | { |
2394 | free (name); | |
2395 | goto already2; | |
2396 | } | |
0dbd1c74 | 2397 | |
4c36ffe6 | 2398 | temp = XNEW (struct temp_file); |
d7a9644e | 2399 | temp->next = failure_delete_queue; |
2400 | temp->name = name; | |
2401 | failure_delete_queue = temp; | |
0dbd1c74 | 2402 | |
d7a9644e | 2403 | already2:; |
2404 | } | |
2405 | } | |
2406 | ||
2407 | /* Delete all the temporary files whose names we previously recorded. */ | |
2408 | ||
767efd18 | 2409 | #ifndef DELETE_IF_ORDINARY |
2410 | #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \ | |
2411 | do \ | |
2412 | { \ | |
2413 | if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \ | |
2414 | if (unlink (NAME) < 0) \ | |
2415 | if (VERBOSE_FLAG) \ | |
2416 | perror_with_name (NAME); \ | |
2417 | } while (0) | |
2418 | #endif | |
2419 | ||
8149a4fc | 2420 | static void |
952f0048 | 2421 | delete_if_ordinary (const char *name) |
8149a4fc | 2422 | { |
2423 | struct stat st; | |
2424 | #ifdef DEBUG | |
2425 | int i, c; | |
2426 | ||
2427 | printf ("Delete %s? (y or n) ", name); | |
2428 | fflush (stdout); | |
2429 | i = getchar (); | |
2430 | if (i != '\n') | |
0dbd1c74 | 2431 | while ((c = getchar ()) != '\n' && c != EOF) |
2432 | ; | |
2433 | ||
8149a4fc | 2434 | if (i == 'y' || i == 'Y') |
2435 | #endif /* DEBUG */ | |
767efd18 | 2436 | DELETE_IF_ORDINARY (name, st, verbose_flag); |
8149a4fc | 2437 | } |
2438 | ||
d7a9644e | 2439 | static void |
952f0048 | 2440 | delete_temp_files (void) |
d7a9644e | 2441 | { |
19cb6b50 | 2442 | struct temp_file *temp; |
d7a9644e | 2443 | |
2444 | for (temp = always_delete_queue; temp; temp = temp->next) | |
8149a4fc | 2445 | delete_if_ordinary (temp->name); |
d7a9644e | 2446 | always_delete_queue = 0; |
2447 | } | |
2448 | ||
2449 | /* Delete all the files to be deleted on error. */ | |
2450 | ||
2451 | static void | |
952f0048 | 2452 | delete_failure_queue (void) |
d7a9644e | 2453 | { |
19cb6b50 | 2454 | struct temp_file *temp; |
d7a9644e | 2455 | |
2456 | for (temp = failure_delete_queue; temp; temp = temp->next) | |
8149a4fc | 2457 | delete_if_ordinary (temp->name); |
d7a9644e | 2458 | } |
2459 | ||
2460 | static void | |
952f0048 | 2461 | clear_failure_queue (void) |
d7a9644e | 2462 | { |
2463 | failure_delete_queue = 0; | |
2464 | } | |
8894538a | 2465 | \f |
067277c3 | 2466 | /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK |
2467 | returns non-NULL. | |
2468 | If DO_MULTI is true iterate over the paths twice, first with multilib | |
2469 | suffix then without, otherwise iterate over the paths once without | |
2470 | adding a multilib suffix. When DO_MULTI is true, some attempt is made | |
2471 | to avoid visiting the same path twice, but we could do better. For | |
2472 | instance, /usr/lib/../lib is considered different from /usr/lib. | |
2473 | At least EXTRA_SPACE chars past the end of the path passed to | |
2474 | CALLBACK are available for use by the callback. | |
2475 | CALLBACK_INFO allows extra parameters to be passed to CALLBACK. | |
2476 | ||
2477 | Returns the value returned by CALLBACK. */ | |
2478 | ||
2479 | static void * | |
2480 | for_each_path (const struct path_prefix *paths, | |
2481 | bool do_multi, | |
2482 | size_t extra_space, | |
2483 | void *(*callback) (char *, void *), | |
2484 | void *callback_info) | |
8894538a | 2485 | { |
067277c3 | 2486 | struct prefix_list *pl; |
2487 | const char *multi_dir = NULL; | |
2488 | const char *multi_os_dir = NULL; | |
77adc39e | 2489 | const char *multiarch_suffix = NULL; |
067277c3 | 2490 | const char *multi_suffix; |
2491 | const char *just_multi_suffix; | |
2492 | char *path = NULL; | |
2493 | void *ret = NULL; | |
2494 | bool skip_multi_dir = false; | |
2495 | bool skip_multi_os_dir = false; | |
2496 | ||
2497 | multi_suffix = machine_suffix; | |
2498 | just_multi_suffix = just_machine_suffix; | |
2499 | if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0) | |
8894538a | 2500 | { |
067277c3 | 2501 | multi_dir = concat (multilib_dir, dir_separator_str, NULL); |
2502 | multi_suffix = concat (multi_suffix, multi_dir, NULL); | |
2503 | just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL); | |
2504 | } | |
2505 | if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0) | |
2506 | multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL); | |
77adc39e | 2507 | if (multiarch_dir) |
2508 | multiarch_suffix = concat (multiarch_dir, dir_separator_str, NULL); | |
8894538a | 2509 | |
067277c3 | 2510 | while (1) |
2511 | { | |
2512 | size_t multi_dir_len = 0; | |
2513 | size_t multi_os_dir_len = 0; | |
77adc39e | 2514 | size_t multiarch_len = 0; |
067277c3 | 2515 | size_t suffix_len; |
2516 | size_t just_suffix_len; | |
2517 | size_t len; | |
2518 | ||
2519 | if (multi_dir) | |
2520 | multi_dir_len = strlen (multi_dir); | |
2521 | if (multi_os_dir) | |
2522 | multi_os_dir_len = strlen (multi_os_dir); | |
77adc39e | 2523 | if (multiarch_suffix) |
2524 | multiarch_len = strlen (multiarch_suffix); | |
067277c3 | 2525 | suffix_len = strlen (multi_suffix); |
2526 | just_suffix_len = strlen (just_multi_suffix); | |
2527 | ||
2528 | if (path == NULL) | |
8894538a | 2529 | { |
067277c3 | 2530 | len = paths->max_len + extra_space + 1; |
77adc39e | 2531 | len += MAX (MAX (suffix_len, multi_os_dir_len), multiarch_len); |
4c36ffe6 | 2532 | path = XNEWVEC (char, len); |
8894538a | 2533 | } |
2534 | ||
067277c3 | 2535 | for (pl = paths->plist; pl != 0; pl = pl->next) |
3ec1fc1b | 2536 | { |
067277c3 | 2537 | len = strlen (pl->prefix); |
2538 | memcpy (path, pl->prefix, len); | |
2c815aff | 2539 | |
067277c3 | 2540 | /* Look first in MACHINE/VERSION subdirectory. */ |
2541 | if (!skip_multi_dir) | |
2542 | { | |
2543 | memcpy (path + len, multi_suffix, suffix_len + 1); | |
2544 | ret = callback (path, callback_info); | |
2545 | if (ret) | |
2546 | break; | |
2547 | } | |
2548 | ||
2549 | /* Some paths are tried with just the machine (ie. target) | |
2550 | subdir. This is used for finding as, ld, etc. */ | |
2551 | if (!skip_multi_dir | |
2552 | && pl->require_machine_suffix == 2) | |
2553 | { | |
2554 | memcpy (path + len, just_multi_suffix, just_suffix_len + 1); | |
2555 | ret = callback (path, callback_info); | |
2556 | if (ret) | |
2557 | break; | |
2558 | } | |
2559 | ||
77adc39e | 2560 | /* Now try the multiarch path. */ |
2561 | if (!skip_multi_dir | |
2562 | && !pl->require_machine_suffix && multiarch_dir) | |
2563 | { | |
2564 | memcpy (path + len, multiarch_suffix, multiarch_len + 1); | |
2565 | ret = callback (path, callback_info); | |
2566 | if (ret) | |
2567 | break; | |
2568 | } | |
2569 | ||
067277c3 | 2570 | /* Now try the base path. */ |
2571 | if (!pl->require_machine_suffix | |
2572 | && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir)) | |
2573 | { | |
2574 | const char *this_multi; | |
2575 | size_t this_multi_len; | |
2576 | ||
2577 | if (pl->os_multilib) | |
2578 | { | |
2579 | this_multi = multi_os_dir; | |
2580 | this_multi_len = multi_os_dir_len; | |
2581 | } | |
2582 | else | |
2583 | { | |
2584 | this_multi = multi_dir; | |
2585 | this_multi_len = multi_dir_len; | |
2586 | } | |
2587 | ||
2588 | if (this_multi_len) | |
2589 | memcpy (path + len, this_multi, this_multi_len + 1); | |
2590 | else | |
2591 | path[len] = '\0'; | |
2592 | ||
2593 | ret = callback (path, callback_info); | |
2594 | if (ret) | |
2595 | break; | |
2596 | } | |
3ec1fc1b | 2597 | } |
067277c3 | 2598 | if (pl) |
2599 | break; | |
3ec1fc1b | 2600 | |
067277c3 | 2601 | if (multi_dir == NULL && multi_os_dir == NULL) |
2602 | break; | |
8894538a | 2603 | |
067277c3 | 2604 | /* Run through the paths again, this time without multilibs. |
2605 | Don't repeat any we have already seen. */ | |
2606 | if (multi_dir) | |
2607 | { | |
e47a6f81 | 2608 | free (CONST_CAST (char *, multi_dir)); |
067277c3 | 2609 | multi_dir = NULL; |
e47a6f81 | 2610 | free (CONST_CAST (char *, multi_suffix)); |
067277c3 | 2611 | multi_suffix = machine_suffix; |
e47a6f81 | 2612 | free (CONST_CAST (char *, just_multi_suffix)); |
067277c3 | 2613 | just_multi_suffix = just_machine_suffix; |
8894538a | 2614 | } |
067277c3 | 2615 | else |
2616 | skip_multi_dir = true; | |
2617 | if (multi_os_dir) | |
2618 | { | |
e47a6f81 | 2619 | free (CONST_CAST (char *, multi_os_dir)); |
067277c3 | 2620 | multi_os_dir = NULL; |
2621 | } | |
2622 | else | |
2623 | skip_multi_os_dir = true; | |
2624 | } | |
2625 | ||
2626 | if (multi_dir) | |
2627 | { | |
e47a6f81 | 2628 | free (CONST_CAST (char *, multi_dir)); |
2629 | free (CONST_CAST (char *, multi_suffix)); | |
2630 | free (CONST_CAST (char *, just_multi_suffix)); | |
8894538a | 2631 | } |
067277c3 | 2632 | if (multi_os_dir) |
e47a6f81 | 2633 | free (CONST_CAST (char *, multi_os_dir)); |
067277c3 | 2634 | if (ret != path) |
2635 | free (path); | |
2636 | return ret; | |
2637 | } | |
2638 | ||
2639 | /* Callback for build_search_list. Adds path to obstack being built. */ | |
2640 | ||
2641 | struct add_to_obstack_info { | |
2642 | struct obstack *ob; | |
2643 | bool check_dir; | |
2644 | bool first_time; | |
2645 | }; | |
2646 | ||
2647 | static void * | |
2648 | add_to_obstack (char *path, void *data) | |
2649 | { | |
25a1c410 | 2650 | struct add_to_obstack_info *info = (struct add_to_obstack_info *) data; |
067277c3 | 2651 | |
2652 | if (info->check_dir && !is_directory (path, false)) | |
2653 | return NULL; | |
2654 | ||
2655 | if (!info->first_time) | |
2656 | obstack_1grow (info->ob, PATH_SEPARATOR); | |
2657 | ||
2658 | obstack_grow (info->ob, path, strlen (path)); | |
2659 | ||
2660 | info->first_time = false; | |
2661 | return NULL; | |
2662 | } | |
2663 | ||
99c00302 | 2664 | /* Add or change the value of an environment variable, outputting the |
2665 | change to standard error if in verbose mode. */ | |
2666 | static void | |
e8105390 | 2667 | xputenv (const char *string) |
99c00302 | 2668 | { |
26a4a13d | 2669 | env.xput (string); |
99c00302 | 2670 | } |
2671 | ||
067277c3 | 2672 | /* Build a list of search directories from PATHS. |
2673 | PREFIX is a string to prepend to the list. | |
2674 | If CHECK_DIR_P is true we ensure the directory exists. | |
2675 | If DO_MULTI is true, multilib paths are output first, then | |
2676 | non-multilib paths. | |
2677 | This is used mostly by putenv_from_prefixes so we use `collect_obstack'. | |
2678 | It is also used by the --print-search-dirs flag. */ | |
2679 | ||
2680 | static char * | |
2681 | build_search_list (const struct path_prefix *paths, const char *prefix, | |
2682 | bool check_dir, bool do_multi) | |
2683 | { | |
2684 | struct add_to_obstack_info info; | |
2685 | ||
2686 | info.ob = &collect_obstack; | |
2687 | info.check_dir = check_dir; | |
2688 | info.first_time = true; | |
2689 | ||
2690 | obstack_grow (&collect_obstack, prefix, strlen (prefix)); | |
2691 | obstack_1grow (&collect_obstack, '='); | |
2692 | ||
2693 | for_each_path (paths, do_multi, 0, add_to_obstack, &info); | |
0dbd1c74 | 2694 | |
4347db8e | 2695 | obstack_1grow (&collect_obstack, '\0'); |
4fac984f | 2696 | return XOBFINISH (&collect_obstack, char *); |
8894538a | 2697 | } |
2698 | ||
a92771b8 | 2699 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables |
2700 | for collect. */ | |
71cee7b1 | 2701 | |
2702 | static void | |
067277c3 | 2703 | putenv_from_prefixes (const struct path_prefix *paths, const char *env_var, |
2704 | bool do_multi) | |
71cee7b1 | 2705 | { |
99c00302 | 2706 | xputenv (build_search_list (paths, env_var, true, do_multi)); |
71cee7b1 | 2707 | } |
d7a9644e | 2708 | \f |
4d5a901b | 2709 | /* Check whether NAME can be accessed in MODE. This is like access, |
2710 | except that it never considers directories to be executable. */ | |
2711 | ||
2712 | static int | |
952f0048 | 2713 | access_check (const char *name, int mode) |
4d5a901b | 2714 | { |
2715 | if (mode == X_OK) | |
2716 | { | |
2717 | struct stat st; | |
2718 | ||
2719 | if (stat (name, &st) < 0 | |
2720 | || S_ISDIR (st.st_mode)) | |
2721 | return -1; | |
2722 | } | |
2723 | ||
2724 | return access (name, mode); | |
2725 | } | |
2726 | ||
067277c3 | 2727 | /* Callback for find_a_file. Appends the file name to the directory |
2728 | path. If the resulting file exists in the right mode, return the | |
2729 | full pathname to the file. */ | |
2730 | ||
2731 | struct file_at_path_info { | |
2732 | const char *name; | |
2733 | const char *suffix; | |
2734 | int name_len; | |
2735 | int suffix_len; | |
2736 | int mode; | |
2737 | }; | |
2738 | ||
2739 | static void * | |
2740 | file_at_path (char *path, void *data) | |
2741 | { | |
25a1c410 | 2742 | struct file_at_path_info *info = (struct file_at_path_info *) data; |
067277c3 | 2743 | size_t len = strlen (path); |
2744 | ||
2745 | memcpy (path + len, info->name, info->name_len); | |
2746 | len += info->name_len; | |
2747 | ||
2748 | /* Some systems have a suffix for executable files. | |
2749 | So try appending that first. */ | |
2750 | if (info->suffix_len) | |
2751 | { | |
2752 | memcpy (path + len, info->suffix, info->suffix_len + 1); | |
2753 | if (access_check (path, info->mode) == 0) | |
2754 | return path; | |
2755 | } | |
2756 | ||
2757 | path[len] = '\0'; | |
2758 | if (access_check (path, info->mode) == 0) | |
2759 | return path; | |
2760 | ||
2761 | return NULL; | |
2762 | } | |
2763 | ||
d7a9644e | 2764 | /* Search for NAME using the prefix list PREFIXES. MODE is passed to |
067277c3 | 2765 | access to check permissions. If DO_MULTI is true, search multilib |
2766 | paths then non-multilib paths, otherwise do not search multilib paths. | |
a92771b8 | 2767 | Return 0 if not found, otherwise return its name, allocated with malloc. */ |
d7a9644e | 2768 | |
2769 | static char * | |
067277c3 | 2770 | find_a_file (const struct path_prefix *pprefix, const char *name, int mode, |
2771 | bool do_multi) | |
d7a9644e | 2772 | { |
067277c3 | 2773 | struct file_at_path_info info; |
d7a9644e | 2774 | |
f07251bc | 2775 | #ifdef DEFAULT_ASSEMBLER |
7d3bd8c0 | 2776 | if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0) |
713829e9 | 2777 | return xstrdup (DEFAULT_ASSEMBLER); |
f07251bc | 2778 | #endif |
2779 | ||
2780 | #ifdef DEFAULT_LINKER | |
9af5ce0c | 2781 | if (! strcmp (name, "ld") && access (DEFAULT_LINKER, mode) == 0) |
713829e9 | 2782 | return xstrdup (DEFAULT_LINKER); |
f07251bc | 2783 | #endif |
2784 | ||
d7a9644e | 2785 | /* Determine the filename to execute (special case for absolute paths). */ |
2786 | ||
a5c088d4 | 2787 | if (IS_ABSOLUTE_PATH (name)) |
d7a9644e | 2788 | { |
f07251bc | 2789 | if (access (name, mode) == 0) |
067277c3 | 2790 | return xstrdup (name); |
757f7e66 | 2791 | |
067277c3 | 2792 | return NULL; |
2793 | } | |
757f7e66 | 2794 | |
067277c3 | 2795 | info.name = name; |
2796 | info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : ""; | |
2797 | info.name_len = strlen (info.name); | |
2798 | info.suffix_len = strlen (info.suffix); | |
2799 | info.mode = mode; | |
d7a9644e | 2800 | |
25a1c410 | 2801 | return (char*) for_each_path (pprefix, do_multi, |
2802 | info.name_len + info.suffix_len, | |
2803 | file_at_path, &info); | |
d7a9644e | 2804 | } |
2805 | ||
acd84059 | 2806 | /* Ranking of prefixes in the sort list. -B prefixes are put before |
2c815aff | 2807 | all others. */ |
acd84059 | 2808 | |
2809 | enum path_prefix_priority | |
2810 | { | |
2811 | PREFIX_PRIORITY_B_OPT, | |
2812 | PREFIX_PRIORITY_LAST | |
2813 | }; | |
2814 | ||
98667efb | 2815 | /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending |
acd84059 | 2816 | order according to PRIORITY. Within each PRIORITY, new entries are |
2817 | appended. | |
d7a9644e | 2818 | |
2819 | If WARN is nonzero, we will warn if no file is found | |
2820 | through this prefix. WARN should point to an int | |
3ec1fc1b | 2821 | which will be set to 1 if this entry is used. |
2822 | ||
0dbd1c74 | 2823 | COMPONENT is the value to be passed to update_path. |
2824 | ||
3ec1fc1b | 2825 | REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without |
2826 | the complete value of machine_suffix. | |
2827 | 2 means try both machine_suffix and just_machine_suffix. */ | |
d7a9644e | 2828 | |
2829 | static void | |
952f0048 | 2830 | add_prefix (struct path_prefix *pprefix, const char *prefix, |
2831 | const char *component, /* enum prefix_priority */ int priority, | |
2af84186 | 2832 | int require_machine_suffix, int os_multilib) |
d7a9644e | 2833 | { |
2834 | struct prefix_list *pl, **prev; | |
2835 | int len; | |
2836 | ||
acd84059 | 2837 | for (prev = &pprefix->plist; |
2838 | (*prev) != NULL && (*prev)->priority <= priority; | |
2839 | prev = &(*prev)->next) | |
2840 | ; | |
d7a9644e | 2841 | |
2358393e | 2842 | /* Keep track of the longest prefix. */ |
d7a9644e | 2843 | |
0dbd1c74 | 2844 | prefix = update_path (prefix, component); |
d7a9644e | 2845 | len = strlen (prefix); |
2846 | if (len > pprefix->max_len) | |
2847 | pprefix->max_len = len; | |
2848 | ||
4c36ffe6 | 2849 | pl = XNEW (struct prefix_list); |
17b80c08 | 2850 | pl->prefix = prefix; |
d7a9644e | 2851 | pl->require_machine_suffix = require_machine_suffix; |
acd84059 | 2852 | pl->priority = priority; |
c954ff02 | 2853 | pl->os_multilib = os_multilib; |
d7a9644e | 2854 | |
2358393e | 2855 | /* Insert after PREV. */ |
acd84059 | 2856 | pl->next = (*prev); |
2857 | (*prev) = pl; | |
d7a9644e | 2858 | } |
805e22b2 | 2859 | |
2860 | /* Same as add_prefix, but prepending target_system_root to prefix. */ | |
c4328bcc | 2861 | /* The target_system_root prefix has been relocated by gcc_exec_prefix. */ |
805e22b2 | 2862 | static void |
952f0048 | 2863 | add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix, |
2864 | const char *component, | |
2865 | /* enum prefix_priority */ int priority, | |
2af84186 | 2866 | int require_machine_suffix, int os_multilib) |
805e22b2 | 2867 | { |
a5c088d4 | 2868 | if (!IS_ABSOLUTE_PATH (prefix)) |
c05be867 | 2869 | fatal_error (input_location, "system path %qs is not absolute", prefix); |
805e22b2 | 2870 | |
2871 | if (target_system_root) | |
2872 | { | |
c5698d9f | 2873 | char *sysroot_no_trailing_dir_separator = xstrdup (target_system_root); |
2874 | size_t sysroot_len = strlen (target_system_root); | |
2875 | ||
2876 | if (sysroot_len > 0 | |
2877 | && target_system_root[sysroot_len - 1] == DIR_SEPARATOR) | |
2878 | sysroot_no_trailing_dir_separator[sysroot_len - 1] = '\0'; | |
2879 | ||
4ea70922 | 2880 | if (target_sysroot_suffix) |
ce0fdb91 | 2881 | prefix = concat (sysroot_no_trailing_dir_separator, |
2882 | target_sysroot_suffix, prefix, NULL); | |
2883 | else | |
2884 | prefix = concat (sysroot_no_trailing_dir_separator, prefix, NULL); | |
2885 | ||
c5698d9f | 2886 | free (sysroot_no_trailing_dir_separator); |
4ea70922 | 2887 | |
805e22b2 | 2888 | /* We have to override this because GCC's notion of sysroot |
2889 | moves along with GCC. */ | |
2890 | component = "GCC"; | |
2891 | } | |
2892 | ||
2893 | add_prefix (pprefix, prefix, component, priority, | |
2af84186 | 2894 | require_machine_suffix, os_multilib); |
805e22b2 | 2895 | } |
d7a9644e | 2896 | \f |
2897 | /* Execute the command specified by the arguments on the current line of spec. | |
2898 | When using pipes, this includes several piped-together commands | |
2899 | with `|' between them. | |
2900 | ||
2901 | Return 0 if successful, -1 if failed. */ | |
2902 | ||
2903 | static int | |
952f0048 | 2904 | execute (void) |
d7a9644e | 2905 | { |
2906 | int i; | |
2907 | int n_commands; /* # of command. */ | |
2908 | char *string; | |
288e5bba | 2909 | struct pex_obj *pex; |
d7a9644e | 2910 | struct command |
026f2c7a | 2911 | { |
2912 | const char *prog; /* program name. */ | |
2913 | const char **argv; /* vector of args. */ | |
026f2c7a | 2914 | }; |
9d9edc85 | 2915 | const char *arg; |
d7a9644e | 2916 | |
2917 | struct command *commands; /* each command buffer with above info. */ | |
2918 | ||
5e8f3c31 | 2919 | gcc_assert (!processing_spec_function); |
c21b3276 | 2920 | |
0bfd146e | 2921 | if (wrapper_string) |
2922 | { | |
9d9edc85 | 2923 | string = find_a_file (&exec_prefixes, |
f1f41a6c | 2924 | argbuf[0], X_OK, false); |
9d9edc85 | 2925 | if (string) |
f1f41a6c | 2926 | argbuf[0] = string; |
0bfd146e | 2927 | insert_wrapper (wrapper_string); |
2928 | } | |
2929 | ||
d7a9644e | 2930 | /* Count # of piped commands. */ |
f1f41a6c | 2931 | for (n_commands = 1, i = 0; argbuf.iterate (i, &arg); i++) |
9d9edc85 | 2932 | if (strcmp (arg, "|") == 0) |
d7a9644e | 2933 | n_commands++; |
2934 | ||
2935 | /* Get storage for each command. */ | |
25a1c410 | 2936 | commands = (struct command *) alloca (n_commands * sizeof (struct command)); |
d7a9644e | 2937 | |
2938 | /* Split argbuf into its separate piped processes, | |
2939 | and record info about each one. | |
2940 | Also search for the programs that are to be run. */ | |
2941 | ||
f1f41a6c | 2942 | argbuf.safe_push (0); |
9d9edc85 | 2943 | |
f1f41a6c | 2944 | commands[0].prog = argbuf[0]; /* first command. */ |
2945 | commands[0].argv = argbuf.address (); | |
48e1416a | 2946 | |
0bfd146e | 2947 | if (!wrapper_string) |
2948 | { | |
2949 | string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false); | |
2950 | commands[0].argv[0] = (string) ? string : commands[0].argv[0]; | |
2951 | } | |
d7a9644e | 2952 | |
f1f41a6c | 2953 | for (n_commands = 1, i = 0; argbuf.iterate (i, &arg); i++) |
9d9edc85 | 2954 | if (arg && strcmp (arg, "|") == 0) |
d7a9644e | 2955 | { /* each command. */ |
35151e7a | 2956 | #if defined (__MSDOS__) || defined (OS2) || defined (VMS) |
c05be867 | 2957 | fatal_error (input_location, "-pipe not supported"); |
d7a9644e | 2958 | #endif |
f1f41a6c | 2959 | argbuf[i] = 0; /* Termination of |
9d9edc85 | 2960 | command args. */ |
f1f41a6c | 2961 | commands[n_commands].prog = argbuf[i + 1]; |
9d9edc85 | 2962 | commands[n_commands].argv |
f1f41a6c | 2963 | = &(argbuf.address ())[i + 1]; |
c954ff02 | 2964 | string = find_a_file (&exec_prefixes, commands[n_commands].prog, |
067277c3 | 2965 | X_OK, false); |
d7a9644e | 2966 | if (string) |
2967 | commands[n_commands].argv[0] = string; | |
2968 | n_commands++; | |
2969 | } | |
2970 | ||
d7a9644e | 2971 | /* If -v, print what we are about to do, and maybe query. */ |
2972 | ||
8894538a | 2973 | if (verbose_flag) |
d7a9644e | 2974 | { |
8ace789a | 2975 | /* For help listings, put a blank line between sub-processes. */ |
2976 | if (print_help_list) | |
2977 | fputc ('\n', stderr); | |
2c815aff | 2978 | |
d7a9644e | 2979 | /* Print each piped command as a separate line. */ |
026f2c7a | 2980 | for (i = 0; i < n_commands; i++) |
d7a9644e | 2981 | { |
826f6505 | 2982 | const char *const *j; |
d7a9644e | 2983 | |
3cfec666 | 2984 | if (verbose_only_flag) |
2985 | { | |
74e4079a | 2986 | for (j = commands[i].argv; *j; j++) |
2987 | { | |
7cc1628d | 2988 | const char *p; |
74e4079a | 2989 | for (p = *j; *p; ++p) |
663e8646 | 2990 | if (!ISALNUM ((unsigned char) *p) |
2991 | && *p != '_' && *p != '/' && *p != '-' && *p != '.') | |
2992 | break; | |
2993 | if (*p || !*j) | |
74e4079a | 2994 | { |
663e8646 | 2995 | fprintf (stderr, " \""); |
2996 | for (p = *j; *p; ++p) | |
2997 | { | |
2998 | if (*p == '"' || *p == '\\' || *p == '$') | |
2999 | fputc ('\\', stderr); | |
3000 | fputc (*p, stderr); | |
3001 | } | |
3002 | fputc ('"', stderr); | |
74e4079a | 3003 | } |
fde5bd5c | 3004 | /* If it's empty, print "". */ |
3005 | else if (!**j) | |
3006 | fprintf (stderr, " \"\""); | |
663e8646 | 3007 | else |
3008 | fprintf (stderr, " %s", *j); | |
74e4079a | 3009 | } |
3cfec666 | 3010 | } |
3011 | else | |
74e4079a | 3012 | for (j = commands[i].argv; *j; j++) |
fde5bd5c | 3013 | /* If it's empty, print "". */ |
3014 | if (!**j) | |
3015 | fprintf (stderr, " \"\""); | |
3016 | else | |
3017 | fprintf (stderr, " %s", *j); | |
d7a9644e | 3018 | |
3019 | /* Print a pipe symbol after all but the last command. */ | |
3020 | if (i + 1 != n_commands) | |
3021 | fprintf (stderr, " |"); | |
3022 | fprintf (stderr, "\n"); | |
3023 | } | |
3024 | fflush (stderr); | |
74e4079a | 3025 | if (verbose_only_flag != 0) |
0f709d72 | 3026 | { |
3027 | /* verbose_only_flag should act as if the spec was | |
3028 | executed, so increment execution_count before | |
c7bf1374 | 3029 | returning. This prevents spurious warnings about |
0f709d72 | 3030 | unused linker input files, etc. */ |
3031 | execution_count++; | |
3032 | return 0; | |
3033 | } | |
d7a9644e | 3034 | #ifdef DEBUG |
a922df2e | 3035 | fnotice (stderr, "\nGo ahead? (y or n) "); |
d7a9644e | 3036 | fflush (stderr); |
3037 | i = getchar (); | |
3038 | if (i != '\n') | |
0dbd1c74 | 3039 | while (getchar () != '\n') |
3040 | ; | |
3041 | ||
d7a9644e | 3042 | if (i != 'y' && i != 'Y') |
3043 | return 0; | |
3044 | #endif /* DEBUG */ | |
3045 | } | |
3046 | ||
0fa54ff1 | 3047 | #ifdef ENABLE_VALGRIND_CHECKING |
98667efb | 3048 | /* Run the each command through valgrind. To simplify prepending the |
0fa54ff1 | 3049 | path to valgrind and the option "-q" (for quiet operation unless |
3050 | something triggers), we allocate a separate argv array. */ | |
3051 | ||
3052 | for (i = 0; i < n_commands; i++) | |
3053 | { | |
3054 | const char **argv; | |
3055 | int argc; | |
3056 | int j; | |
3057 | ||
3058 | for (argc = 0; commands[i].argv[argc] != NULL; argc++) | |
3059 | ; | |
3060 | ||
561c1db5 | 3061 | argv = XALLOCAVEC (const char *, argc + 3); |
0fa54ff1 | 3062 | |
3063 | argv[0] = VALGRIND_PATH; | |
3064 | argv[1] = "-q"; | |
3065 | for (j = 2; j < argc + 2; j++) | |
3066 | argv[j] = commands[i].argv[j - 2]; | |
3067 | argv[j] = NULL; | |
3068 | ||
3069 | commands[i].argv = argv; | |
3070 | commands[i].prog = argv[0]; | |
3071 | } | |
3072 | #endif | |
3073 | ||
d7a9644e | 3074 | /* Run each piped subprocess. */ |
3075 | ||
4537c5d9 | 3076 | pex = pex_init (PEX_USE_PIPES | ((report_times || report_times_to_file) |
3077 | ? PEX_RECORD_TIMES : 0), | |
460b8bb3 | 3078 | progname, temp_filename); |
288e5bba | 3079 | if (pex == NULL) |
c05be867 | 3080 | fatal_error (input_location, "pex_init failed: %m"); |
288e5bba | 3081 | |
d7a9644e | 3082 | for (i = 0; i < n_commands; i++) |
3083 | { | |
288e5bba | 3084 | const char *errmsg; |
3085 | int err; | |
2508fdc3 | 3086 | const char *string = commands[i].argv[0]; |
d7a9644e | 3087 | |
288e5bba | 3088 | errmsg = pex_run (pex, |
3089 | ((i + 1 == n_commands ? PEX_LAST : 0) | |
3090 | | (string == commands[i].prog ? PEX_SEARCH : 0)), | |
e47a6f81 | 3091 | string, CONST_CAST (char **, commands[i].argv), |
288e5bba | 3092 | NULL, NULL, &err); |
3093 | if (errmsg != NULL) | |
3094 | { | |
3095 | if (err == 0) | |
c05be867 | 3096 | fatal_error (input_location, errmsg); |
288e5bba | 3097 | else |
3098 | { | |
3099 | errno = err; | |
3100 | pfatal_with_name (errmsg); | |
3101 | } | |
3102 | } | |
d7a9644e | 3103 | |
a31e9496 | 3104 | if (i && string != commands[i].prog) |
e47a6f81 | 3105 | free (CONST_CAST (char *, string)); |
d7a9644e | 3106 | } |
3107 | ||
3108 | execution_count++; | |
3109 | ||
288e5bba | 3110 | /* Wait for all the subprocesses to finish. */ |
d7a9644e | 3111 | |
3112 | { | |
288e5bba | 3113 | int *statuses; |
3114 | struct pex_time *times = NULL; | |
d7a9644e | 3115 | int ret_code = 0; |
3116 | ||
25a1c410 | 3117 | statuses = (int *) alloca (n_commands * sizeof (int)); |
288e5bba | 3118 | if (!pex_get_status (pex, n_commands, statuses)) |
c05be867 | 3119 | fatal_error (input_location, "failed to get exit status: %m"); |
288e5bba | 3120 | |
4537c5d9 | 3121 | if (report_times || report_times_to_file) |
d7a9644e | 3122 | { |
25a1c410 | 3123 | times = (struct pex_time *) alloca (n_commands * sizeof (struct pex_time)); |
288e5bba | 3124 | if (!pex_get_times (pex, n_commands, times)) |
c05be867 | 3125 | fatal_error (input_location, "failed to get process times: %m"); |
288e5bba | 3126 | } |
d7a9644e | 3127 | |
288e5bba | 3128 | pex_free (pex); |
d7a9644e | 3129 | |
288e5bba | 3130 | for (i = 0; i < n_commands; ++i) |
3131 | { | |
3132 | int status = statuses[i]; | |
a876e5f8 | 3133 | |
288e5bba | 3134 | if (WIFSIGNALED (status)) |
3135 | { | |
4ed34b76 | 3136 | #ifdef SIGPIPE |
288e5bba | 3137 | /* SIGPIPE is a special case. It happens in -pipe mode |
3138 | when the compiler dies before the preprocessor is done, | |
3139 | or the assembler dies before the compiler is done. | |
3140 | There's generally been an error already, and this is | |
3141 | just fallout. So don't generate another error unless | |
3142 | we would otherwise have succeeded. */ | |
3143 | if (WTERMSIG (status) == SIGPIPE | |
3144 | && (signal_count || greatest_status >= MIN_FATAL_STATUS)) | |
d4523b3e | 3145 | { |
3146 | signal_count++; | |
3147 | ret_code = -1; | |
3148 | } | |
288e5bba | 3149 | else |
3150 | #endif | |
9d7131bf | 3151 | internal_error_no_backtrace ("%s (program %s)", |
3152 | strsignal (WTERMSIG (status)), | |
3153 | commands[i].prog); | |
288e5bba | 3154 | } |
3155 | else if (WIFEXITED (status) | |
3156 | && WEXITSTATUS (status) >= MIN_FATAL_STATUS) | |
3157 | { | |
a31e9496 | 3158 | /* For ICEs in cc1, cc1obj, cc1plus see if it is |
3159 | reproducible or not. */ | |
3160 | const char *p; | |
3161 | if (flag_report_bug | |
3162 | && WEXITSTATUS (status) == ICE_EXIT_CODE | |
3163 | && i == 0 | |
3164 | && (p = strrchr (commands[0].argv[0], DIR_SEPARATOR)) | |
3165 | && ! strncmp (p + 1, "cc1", 3)) | |
d3faa4b6 | 3166 | try_generate_repro (commands[0].argv); |
288e5bba | 3167 | if (WEXITSTATUS (status) > greatest_status) |
3168 | greatest_status = WEXITSTATUS (status); | |
3169 | ret_code = -1; | |
3170 | } | |
3171 | ||
4537c5d9 | 3172 | if (report_times || report_times_to_file) |
288e5bba | 3173 | { |
3174 | struct pex_time *pt = ×[i]; | |
3175 | double ut, st; | |
3176 | ||
3177 | ut = ((double) pt->user_seconds | |
3178 | + (double) pt->user_microseconds / 1.0e6); | |
3179 | st = ((double) pt->system_seconds | |
3180 | + (double) pt->system_microseconds / 1.0e6); | |
3181 | ||
3182 | if (ut + st != 0) | |
4537c5d9 | 3183 | { |
3184 | if (report_times) | |
a922df2e | 3185 | fnotice (stderr, "# %s %.2f %.2f\n", |
3186 | commands[i].prog, ut, st); | |
4537c5d9 | 3187 | |
3188 | if (report_times_to_file) | |
3189 | { | |
3190 | int c = 0; | |
3191 | const char *const *j; | |
3192 | ||
3193 | fprintf (report_times_to_file, "%g %g", ut, st); | |
3194 | ||
3195 | for (j = &commands[i].prog; *j; j = &commands[i].argv[++c]) | |
3196 | { | |
3197 | const char *p; | |
3198 | for (p = *j; *p; ++p) | |
3199 | if (*p == '"' || *p == '\\' || *p == '$' | |
3200 | || ISSPACE (*p)) | |
3201 | break; | |
3202 | ||
3203 | if (*p) | |
3204 | { | |
3205 | fprintf (report_times_to_file, " \""); | |
3206 | for (p = *j; *p; ++p) | |
3207 | { | |
3208 | if (*p == '"' || *p == '\\' || *p == '$') | |
3209 | fputc ('\\', report_times_to_file); | |
3210 | fputc (*p, report_times_to_file); | |
3211 | } | |
3212 | fputc ('"', report_times_to_file); | |
3213 | } | |
3214 | else | |
3215 | fprintf (report_times_to_file, " %s", *j); | |
3216 | } | |
3217 | ||
3218 | fputc ('\n', report_times_to_file); | |
3219 | } | |
3220 | } | |
288e5bba | 3221 | } |
d7a9644e | 3222 | } |
288e5bba | 3223 | |
a31e9496 | 3224 | if (commands[0].argv[0] != commands[0].prog) |
3225 | free (CONST_CAST (char *, commands[0].argv[0])); | |
3226 | ||
d7a9644e | 3227 | return ret_code; |
3228 | } | |
3229 | } | |
3230 | \f | |
3231 | /* Find all the switches given to us | |
3232 | and make a vector describing them. | |
3233 | The elements of the vector are strings, one per switch given. | |
3234 | If a switch uses following arguments, then the `part1' field | |
3235 | is the switch itself and the `args' field | |
3236 | is a null-terminated vector containing the following arguments. | |
79d52444 | 3237 | Bits in the `live_cond' field are: |
3238 | SWITCH_LIVE to indicate this switch is true in a conditional spec. | |
3239 | SWITCH_FALSE to indicate this switch is overridden by a later switch. | |
3240 | SWITCH_IGNORE to indicate this switch should be ignored (used in %<S). | |
fd7b19dc | 3241 | SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored. |
3242 | SWITCH_KEEP_FOR_GCC to indicate that this switch, otherwise ignored, | |
3243 | should be included in COLLECT_GCC_OPTIONS. | |
87a6a1b5 | 3244 | in all do_spec calls afterwards. Used for %<S from self specs. |
fd7b19dc | 3245 | The `known' field describes whether this is an internal switch. |
3246 | The `validated' field describes whether any spec has looked at this switch; | |
3247 | if it remains false at the end of the run, the switch must be meaningless. | |
3248 | The `ordering' field is used to temporarily mark switches that have to be | |
3249 | kept in a specific order. */ | |
d7a9644e | 3250 | |
5c1421d7 | 3251 | #define SWITCH_LIVE (1 << 0) |
3252 | #define SWITCH_FALSE (1 << 1) | |
3253 | #define SWITCH_IGNORE (1 << 2) | |
3254 | #define SWITCH_IGNORE_PERMANENTLY (1 << 3) | |
3255 | #define SWITCH_KEEP_FOR_GCC (1 << 4) | |
4a10d696 | 3256 | |
d7a9644e | 3257 | struct switchstr |
3258 | { | |
e40d43cc | 3259 | const char *part1; |
2508fdc3 | 3260 | const char **args; |
79d52444 | 3261 | unsigned int live_cond; |
556cfe53 | 3262 | bool known; |
3263 | bool validated; | |
3264 | bool ordering; | |
d7a9644e | 3265 | }; |
3266 | ||
3267 | static struct switchstr *switches; | |
3268 | ||
3269 | static int n_switches; | |
3270 | ||
bd338b2c | 3271 | static int n_switches_alloc; |
3272 | ||
71278019 | 3273 | /* Set to zero if -fcompare-debug is disabled, positive if it's |
3274 | enabled and we're running the first compilation, negative if it's | |
3275 | enabled and we're running the second compilation. For most of the | |
3276 | time, it's in the range -1..1, but it can be temporarily set to 2 | |
3277 | or 3 to indicate that the -fcompare-debug flags didn't come from | |
3278 | the command-line, but rather from the GCC_COMPARE_DEBUG environment | |
3279 | variable, until a synthesized -fcompare-debug flag is added to the | |
3280 | command line. */ | |
3281 | int compare_debug; | |
3282 | ||
3283 | /* Set to nonzero if we've seen the -fcompare-debug-second flag. */ | |
3284 | int compare_debug_second; | |
3285 | ||
3286 | /* Set to the flags that should be passed to the second compilation in | |
3287 | a -fcompare-debug compilation. */ | |
3288 | const char *compare_debug_opt; | |
3289 | ||
3290 | static struct switchstr *switches_debug_check[2]; | |
3291 | ||
3292 | static int n_switches_debug_check[2]; | |
3293 | ||
4ff887c5 | 3294 | static int n_switches_alloc_debug_check[2]; |
3295 | ||
71278019 | 3296 | static char *debug_check_temp_file[2]; |
3297 | ||
fbf54d9a | 3298 | /* Language is one of three things: |
3299 | ||
3300 | 1) The name of a real programming language. | |
3301 | 2) NULL, indicating that no one has figured out | |
3302 | what it is yet. | |
3303 | 3) '*', indicating that the file should be passed | |
3304 | to the linker. */ | |
d7a9644e | 3305 | struct infile |
3306 | { | |
e40d43cc | 3307 | const char *name; |
3308 | const char *language; | |
dc1dd09b | 3309 | struct compiler *incompiler; |
3310 | bool compiled; | |
3311 | bool preprocessed; | |
d7a9644e | 3312 | }; |
3313 | ||
3314 | /* Also a vector of input files specified. */ | |
3315 | ||
3316 | static struct infile *infiles; | |
3317 | ||
943bf3c7 | 3318 | int n_infiles; |
d7a9644e | 3319 | |
bd338b2c | 3320 | static int n_infiles_alloc; |
3321 | ||
e1a390d6 | 3322 | /* True if undefined environment variables encountered during spec processing |
3323 | are ok to ignore, typically when we're running for --help or --version. */ | |
3324 | ||
3325 | static bool spec_undefvar_allowed; | |
3326 | ||
40109983 | 3327 | /* True if multiple input files are being compiled to a single |
3328 | assembly file. */ | |
3329 | ||
3330 | static bool combine_inputs; | |
3331 | ||
cdf76fe2 | 3332 | /* This counts the number of libraries added by lang_specific_driver, so that |
9e56255a | 3333 | we can tell if there were any user supplied any files or libraries. */ |
3334 | ||
3335 | static int added_libraries; | |
3336 | ||
d7a9644e | 3337 | /* And a vector of corresponding output files is made up later. */ |
3338 | ||
943bf3c7 | 3339 | const char **outfiles; |
2e58e75e | 3340 | \f |
10f57222 | 3341 | #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
2e58e75e | 3342 | |
3343 | /* Convert NAME to a new name if it is the standard suffix. DO_EXE | |
c5025ad6 | 3344 | is true if we should look for an executable suffix. DO_OBJ |
3345 | is true if we should look for an object suffix. */ | |
2e58e75e | 3346 | |
7e6b5e54 | 3347 | static const char * |
952f0048 | 3348 | convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED, |
3349 | int do_obj ATTRIBUTE_UNUSED) | |
2e58e75e | 3350 | { |
7e6b5e54 | 3351 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
2e58e75e | 3352 | int i; |
7e6b5e54 | 3353 | #endif |
2e3ecf64 | 3354 | int len; |
3355 | ||
3356 | if (name == NULL) | |
3357 | return NULL; | |
2c815aff | 3358 | |
2e3ecf64 | 3359 | len = strlen (name); |
2e58e75e | 3360 | |
10f57222 | 3361 | #ifdef HAVE_TARGET_OBJECT_SUFFIX |
3362 | /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */ | |
c5025ad6 | 3363 | if (do_obj && len > 2 |
2e58e75e | 3364 | && name[len - 2] == '.' |
3365 | && name[len - 1] == 'o') | |
3366 | { | |
7c8c3232 | 3367 | obstack_grow (&obstack, name, len - 2); |
10f57222 | 3368 | obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX)); |
4fac984f | 3369 | name = XOBFINISH (&obstack, const char *); |
2e58e75e | 3370 | } |
3371 | #endif | |
3372 | ||
10f57222 | 3373 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) |
2e58e75e | 3374 | /* If there is no filetype, make it the executable suffix (which includes |
3375 | the "."). But don't get confused if we have just "-o". */ | |
10f57222 | 3376 | if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-')) |
2e58e75e | 3377 | return name; |
3378 | ||
dea8dca4 | 3379 | for (i = len - 1; i >= 0; i--) |
79b23a1e | 3380 | if (IS_DIR_SEPARATOR (name[i])) |
dea8dca4 | 3381 | break; |
3382 | ||
3383 | for (i++; i < len; i++) | |
2e58e75e | 3384 | if (name[i] == '.') |
3385 | return name; | |
3386 | ||
3387 | obstack_grow (&obstack, name, len); | |
ee866761 | 3388 | obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX, |
3389 | strlen (TARGET_EXECUTABLE_SUFFIX)); | |
4fac984f | 3390 | name = XOBFINISH (&obstack, const char *); |
2e58e75e | 3391 | #endif |
3392 | ||
3393 | return name; | |
3394 | } | |
3395 | #endif | |
8ace789a | 3396 | \f |
3397 | /* Display the command line switches accepted by gcc. */ | |
3398 | static void | |
952f0048 | 3399 | display_help (void) |
8ace789a | 3400 | { |
460b8bb3 | 3401 | printf (_("Usage: %s [options] file...\n"), progname); |
a4db0a1d | 3402 | fputs (_("Options:\n"), stdout); |
8ace789a | 3403 | |
8fb42bbc | 3404 | fputs (_(" -pass-exit-codes Exit with highest error code from a phase.\n"), stdout); |
3405 | fputs (_(" --help Display this information.\n"), stdout); | |
3406 | fputs (_(" --target-help Display target specific command line options.\n"), stdout); | |
3407 | fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...].\n"), stdout); | |
3408 | fputs (_(" Display specific types of command line options.\n"), stdout); | |
8ace789a | 3409 | if (! verbose_flag) |
8fb42bbc | 3410 | fputs (_(" (Use '-v --help' to display command line options of sub-processes).\n"), stdout); |
3411 | fputs (_(" --version Display compiler version information.\n"), stdout); | |
3412 | fputs (_(" -dumpspecs Display all of the built in spec strings.\n"), stdout); | |
3413 | fputs (_(" -dumpversion Display the version of the compiler.\n"), stdout); | |
3414 | fputs (_(" -dumpmachine Display the compiler's target processor.\n"), stdout); | |
3415 | fputs (_(" -print-search-dirs Display the directories in the compiler's search path.\n"), stdout); | |
3416 | fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library.\n"), stdout); | |
3417 | fputs (_(" -print-file-name=<lib> Display the full path to library <lib>.\n"), stdout); | |
3418 | fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>.\n"), stdout); | |
77adc39e | 3419 | fputs (_("\ |
3420 | -print-multiarch Display the target's normalized GNU triplet, used as\n\ | |
8fb42bbc | 3421 | a component in the library path.\n"), stdout); |
3422 | fputs (_(" -print-multi-directory Display the root directory for versions of libgcc.\n"), stdout); | |
a4db0a1d | 3423 | fputs (_("\ |
3424 | -print-multi-lib Display the mapping between command line options and\n\ | |
8fb42bbc | 3425 | multiple library search directories.\n"), stdout); |
3426 | fputs (_(" -print-multi-os-directory Display the relative path to OS libraries.\n"), stdout); | |
3427 | fputs (_(" -print-sysroot Display the target libraries directory.\n"), stdout); | |
3428 | fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers.\n"), stdout); | |
3429 | fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler.\n"), stdout); | |
3430 | fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor.\n"), stdout); | |
3431 | fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker.\n"), stdout); | |
3432 | fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler.\n"), stdout); | |
3433 | fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor.\n"), stdout); | |
3434 | fputs (_(" -Xlinker <arg> Pass <arg> on to the linker.\n"), stdout); | |
3435 | fputs (_(" -save-temps Do not delete intermediate files.\n"), stdout); | |
3436 | fputs (_(" -save-temps=<arg> Do not delete intermediate files.\n"), stdout); | |
d05a1771 | 3437 | fputs (_("\ |
3438 | -no-canonical-prefixes Do not canonicalize paths when building relative\n\ | |
8fb42bbc | 3439 | prefixes to other gcc components.\n"), stdout); |
3440 | fputs (_(" -pipe Use pipes rather than intermediate files.\n"), stdout); | |
3441 | fputs (_(" -time Time the execution of each subprocess.\n"), stdout); | |
3442 | fputs (_(" -specs=<file> Override built-in specs with the contents of <file>.\n"), stdout); | |
3443 | fputs (_(" -std=<standard> Assume that the input sources are for <standard>.\n"), stdout); | |
a99be165 | 3444 | fputs (_("\ |
3445 | --sysroot=<directory> Use <directory> as the root directory for headers\n\ | |
8fb42bbc | 3446 | and libraries.\n"), stdout); |
3447 | fputs (_(" -B <directory> Add <directory> to the compiler's search paths.\n"), stdout); | |
3448 | fputs (_(" -v Display the programs invoked by the compiler.\n"), stdout); | |
3449 | fputs (_(" -### Like -v but options quoted and commands not executed.\n"), stdout); | |
3450 | fputs (_(" -E Preprocess only; do not compile, assemble or link.\n"), stdout); | |
3451 | fputs (_(" -S Compile only; do not assemble or link.\n"), stdout); | |
3452 | fputs (_(" -c Compile and assemble, but do not link.\n"), stdout); | |
3453 | fputs (_(" -o <file> Place the output into <file>.\n"), stdout); | |
3454 | fputs (_(" -pie Create a position independent executable.\n"), stdout); | |
3455 | fputs (_(" -shared Create a shared library.\n"), stdout); | |
a4db0a1d | 3456 | fputs (_("\ |
8fb42bbc | 3457 | -x <language> Specify the language of the following input files.\n\ |
6122f188 | 3458 | Permissible languages include: c c++ assembler none\n\ |
1d8c4563 | 3459 | 'none' means revert to the default behavior of\n\ |
8fb42bbc | 3460 | guessing the language based on the file's extension.\n\ |
a4db0a1d | 3461 | "), stdout); |
3462 | ||
60933322 | 3463 | printf (_("\ |
833a5c07 | 3464 | \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\ |
3465 | passed on to the various sub-processes invoked by %s. In order to pass\n\ | |
3466 | other options on to these processes the -W<letter> options must be used.\n\ | |
460b8bb3 | 3467 | "), progname); |
8ace789a | 3468 | |
3469 | /* The rest of the options are displayed by invocations of the various | |
3470 | sub-processes. */ | |
3471 | } | |
3472 | ||
2c815aff | 3473 | static void |
952f0048 | 3474 | add_preprocessor_option (const char *option, int len) |
2c815aff | 3475 | { |
f1f41a6c | 3476 | preprocessor_options.safe_push (save_string (option, len)); |
9a109943 | 3477 | } |
2c815aff | 3478 | |
3479 | static void | |
952f0048 | 3480 | add_assembler_option (const char *option, int len) |
e40d43cc | 3481 | { |
f1f41a6c | 3482 | assembler_options.safe_push (save_string (option, len)); |
8ace789a | 3483 | } |
2c815aff | 3484 | |
3485 | static void | |
952f0048 | 3486 | add_linker_option (const char *option, int len) |
e40d43cc | 3487 | { |
f1f41a6c | 3488 | linker_options.safe_push (save_string (option, len)); |
9a109943 | 3489 | } |
2e58e75e | 3490 | \f |
bd338b2c | 3491 | /* Allocate space for an input file in infiles. */ |
3492 | ||
3493 | static void | |
3494 | alloc_infile (void) | |
3495 | { | |
3496 | if (n_infiles_alloc == 0) | |
3497 | { | |
3498 | n_infiles_alloc = 16; | |
3499 | infiles = XNEWVEC (struct infile, n_infiles_alloc); | |
3500 | } | |
3501 | else if (n_infiles_alloc == n_infiles) | |
3502 | { | |
3503 | n_infiles_alloc *= 2; | |
3504 | infiles = XRESIZEVEC (struct infile, infiles, n_infiles_alloc); | |
3505 | } | |
3506 | } | |
3507 | ||
3508 | /* Store an input file with the given NAME and LANGUAGE in | |
3509 | infiles. */ | |
3510 | ||
3511 | static void | |
3512 | add_infile (const char *name, const char *language) | |
3513 | { | |
3514 | alloc_infile (); | |
3515 | infiles[n_infiles].name = name; | |
3516 | infiles[n_infiles++].language = language; | |
3517 | } | |
3518 | ||
3519 | /* Allocate space for a switch in switches. */ | |
3520 | ||
3521 | static void | |
3522 | alloc_switch (void) | |
3523 | { | |
3524 | if (n_switches_alloc == 0) | |
3525 | { | |
3526 | n_switches_alloc = 16; | |
3527 | switches = XNEWVEC (struct switchstr, n_switches_alloc); | |
3528 | } | |
3529 | else if (n_switches_alloc == n_switches) | |
3530 | { | |
3531 | n_switches_alloc *= 2; | |
3532 | switches = XRESIZEVEC (struct switchstr, switches, n_switches_alloc); | |
3533 | } | |
3534 | } | |
3535 | ||
e28aa114 | 3536 | /* Save an option OPT with N_ARGS arguments in array ARGS, marking it |
556cfe53 | 3537 | as validated if VALIDATED and KNOWN if it is an internal switch. */ |
e28aa114 | 3538 | |
3539 | static void | |
3540 | save_switch (const char *opt, size_t n_args, const char *const *args, | |
556cfe53 | 3541 | bool validated, bool known) |
e28aa114 | 3542 | { |
3543 | alloc_switch (); | |
3544 | switches[n_switches].part1 = opt + 1; | |
3545 | if (n_args == 0) | |
3546 | switches[n_switches].args = 0; | |
3547 | else | |
3548 | { | |
3549 | switches[n_switches].args = XNEWVEC (const char *, n_args + 1); | |
3550 | memcpy (switches[n_switches].args, args, n_args * sizeof (const char *)); | |
3551 | switches[n_switches].args[n_args] = NULL; | |
3552 | } | |
3553 | ||
3554 | switches[n_switches].live_cond = 0; | |
3555 | switches[n_switches].validated = validated; | |
556cfe53 | 3556 | switches[n_switches].known = known; |
e28aa114 | 3557 | switches[n_switches].ordering = 0; |
3558 | n_switches++; | |
3559 | } | |
3560 | ||
dfa5c0d3 | 3561 | /* Set the SOURCE_DATE_EPOCH environment variable to the current time if it is |
3562 | not set already. */ | |
3563 | ||
3564 | static void | |
3565 | set_source_date_epoch_envvar () | |
3566 | { | |
3567 | /* Array size is 21 = ceil(log_10(2^64)) + 1 to hold string representations | |
3568 | of 64 bit integers. */ | |
3569 | char source_date_epoch[21]; | |
3570 | time_t tt; | |
3571 | ||
3572 | errno = 0; | |
3573 | tt = time (NULL); | |
3574 | if (tt < (time_t) 0 || errno != 0) | |
3575 | tt = (time_t) 0; | |
3576 | ||
3577 | snprintf (source_date_epoch, 21, "%llu", (unsigned long long) tt); | |
3578 | /* Using setenv instead of xputenv because we want the variable to remain | |
3579 | after finalizing so that it's still set in the second run when using | |
3580 | -fcompare-debug. */ | |
3581 | setenv ("SOURCE_DATE_EPOCH", source_date_epoch, 0); | |
3582 | } | |
3583 | ||
e28aa114 | 3584 | /* Handle an option DECODED that is unknown to the option-processing |
a4e747a2 | 3585 | machinery. */ |
e28aa114 | 3586 | |
3587 | static bool | |
3588 | driver_unknown_option_callback (const struct cl_decoded_option *decoded) | |
3589 | { | |
a4e747a2 | 3590 | const char *opt = decoded->arg; |
3591 | if (opt[1] == 'W' && opt[2] == 'n' && opt[3] == 'o' && opt[4] == '-' | |
3592 | && !(decoded->errors & CL_ERR_NEGATIVE)) | |
3593 | { | |
3594 | /* Leave unknown -Wno-* options for the compiler proper, to be | |
3595 | diagnosed only if there are warnings. */ | |
3596 | save_switch (decoded->canonical_option[0], | |
3597 | decoded->canonical_option_num_elements - 1, | |
556cfe53 | 3598 | &decoded->canonical_option[1], false, true); |
3599 | return false; | |
3600 | } | |
3601 | if (decoded->opt_index == OPT_SPECIAL_unknown) | |
3602 | { | |
47ae02b7 | 3603 | /* Give it a chance to define it a spec file. */ |
556cfe53 | 3604 | save_switch (decoded->canonical_option[0], |
3605 | decoded->canonical_option_num_elements - 1, | |
3606 | &decoded->canonical_option[1], false, false); | |
a4e747a2 | 3607 | return false; |
3608 | } | |
3609 | else | |
3610 | return true; | |
e28aa114 | 3611 | } |
3612 | ||
3613 | /* Handle an option DECODED that is not marked as CL_DRIVER. | |
3614 | LANG_MASK will always be CL_DRIVER. */ | |
3615 | ||
3616 | static void | |
3617 | driver_wrong_lang_callback (const struct cl_decoded_option *decoded, | |
3618 | unsigned int lang_mask ATTRIBUTE_UNUSED) | |
3619 | { | |
3620 | /* At this point, non-driver options are accepted (and expected to | |
3621 | be passed down by specs) unless marked to be rejected by the | |
3622 | driver. Options to be rejected by the driver but accepted by the | |
3623 | compilers proper are treated just like completely unknown | |
3624 | options. */ | |
3625 | const struct cl_option *option = &cl_options[decoded->opt_index]; | |
3626 | ||
ec840af4 | 3627 | if (option->cl_reject_driver) |
e28aa114 | 3628 | error ("unrecognized command line option %qs", |
3629 | decoded->orig_option_with_args_text); | |
3630 | else | |
a4e747a2 | 3631 | save_switch (decoded->canonical_option[0], |
3632 | decoded->canonical_option_num_elements - 1, | |
556cfe53 | 3633 | &decoded->canonical_option[1], false, true); |
e28aa114 | 3634 | } |
3635 | ||
e28aa114 | 3636 | static const char *spec_lang = 0; |
3637 | static int last_language_n_infiles; | |
3638 | ||
38e21583 | 3639 | /* Parse -foffload option argument. */ |
3640 | ||
3641 | static void | |
3642 | handle_foffload_option (const char *arg) | |
3643 | { | |
3644 | const char *c, *cur, *n, *next, *end; | |
3645 | char *target; | |
3646 | ||
3647 | /* If option argument starts with '-' then no target is specified and we | |
3648 | do not need to parse it. */ | |
3649 | if (arg[0] == '-') | |
3650 | return; | |
3651 | ||
44ee4fad | 3652 | end = strchr (arg, '='); |
3653 | if (end == NULL) | |
3654 | end = strchr (arg, '\0'); | |
38e21583 | 3655 | cur = arg; |
3656 | ||
3657 | while (cur < end) | |
3658 | { | |
44ee4fad | 3659 | next = strchr (cur, ','); |
3660 | if (next == NULL) | |
6a892749 | 3661 | next = end; |
38e21583 | 3662 | next = (next > end) ? end : next; |
3663 | ||
3664 | target = XNEWVEC (char, next - cur + 1); | |
6a892749 | 3665 | memcpy (target, cur, next - cur); |
38e21583 | 3666 | target[next - cur] = '\0'; |
3667 | ||
3668 | /* If 'disable' is passed to the option, stop parsing the option and clean | |
3669 | the list of offload targets. */ | |
3670 | if (strcmp (target, "disable") == 0) | |
3671 | { | |
3672 | free (offload_targets); | |
3673 | offload_targets = xstrdup (""); | |
3674 | break; | |
3675 | } | |
3676 | ||
3677 | /* Check that GCC is configured to support the offload target. */ | |
3678 | c = OFFLOAD_TARGETS; | |
3679 | while (c) | |
3680 | { | |
44ee4fad | 3681 | n = strchr (c, ','); |
3682 | if (n == NULL) | |
3683 | n = strchr (c, '\0'); | |
38e21583 | 3684 | |
6a892749 | 3685 | if (next - cur == n - c && strncmp (target, c, n - c) == 0) |
38e21583 | 3686 | break; |
3687 | ||
3688 | c = *n ? n + 1 : NULL; | |
3689 | } | |
3690 | ||
3691 | if (!c) | |
c05be867 | 3692 | fatal_error (input_location, |
3693 | "GCC is not configured to support %s as offload target", | |
38e21583 | 3694 | target); |
3695 | ||
3696 | if (!offload_targets) | |
6a892749 | 3697 | { |
3698 | offload_targets = target; | |
3699 | target = NULL; | |
3700 | } | |
38e21583 | 3701 | else |
3702 | { | |
3703 | /* Check that the target hasn't already presented in the list. */ | |
3704 | c = offload_targets; | |
3705 | do | |
3706 | { | |
44ee4fad | 3707 | n = strchr (c, ':'); |
3708 | if (n == NULL) | |
3709 | n = strchr (c, '\0'); | |
38e21583 | 3710 | |
6a892749 | 3711 | if (next - cur == n - c && strncmp (c, target, n - c) == 0) |
38e21583 | 3712 | break; |
3713 | ||
3714 | c = n + 1; | |
3715 | } | |
3716 | while (*n); | |
3717 | ||
3718 | /* If duplicate is not found, append the target to the list. */ | |
3719 | if (c > n) | |
3720 | { | |
6a892749 | 3721 | size_t offload_targets_len = strlen (offload_targets); |
38e21583 | 3722 | offload_targets |
3723 | = XRESIZEVEC (char, offload_targets, | |
3bf38a0b | 3724 | offload_targets_len + 1 + next - cur + 1); |
3725 | offload_targets[offload_targets_len++] = ':'; | |
3726 | memcpy (offload_targets + offload_targets_len, target, next - cur + 1); | |
38e21583 | 3727 | } |
3728 | } | |
3729 | ||
3730 | cur = next + 1; | |
3731 | XDELETEVEC (target); | |
3732 | } | |
3733 | } | |
3734 | ||
e28aa114 | 3735 | /* Handle a driver option; arguments and return value as for |
3736 | handle_option. */ | |
3737 | ||
3738 | static bool | |
2c5d2e39 | 3739 | driver_handle_option (struct gcc_options *opts, |
f83b64ca | 3740 | struct gcc_options *opts_set, |
2c5d2e39 | 3741 | const struct cl_decoded_option *decoded, |
e28aa114 | 3742 | unsigned int lang_mask ATTRIBUTE_UNUSED, int kind, |
3c6c0e40 | 3743 | location_t loc, |
6bd9d862 | 3744 | const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED, |
3745 | diagnostic_context *dc) | |
e28aa114 | 3746 | { |
3747 | size_t opt_index = decoded->opt_index; | |
3748 | const char *arg = decoded->arg; | |
3749 | const char *compare_debug_replacement_opt; | |
3750 | int value = decoded->value; | |
3751 | bool validated = false; | |
3752 | bool do_save = true; | |
3753 | ||
2c5d2e39 | 3754 | gcc_assert (opts == &global_options); |
f83b64ca | 3755 | gcc_assert (opts_set == &global_options_set); |
e28aa114 | 3756 | gcc_assert (kind == DK_UNSPECIFIED); |
3c6c0e40 | 3757 | gcc_assert (loc == UNKNOWN_LOCATION); |
6bd9d862 | 3758 | gcc_assert (dc == global_dc); |
e28aa114 | 3759 | |
3760 | switch (opt_index) | |
3761 | { | |
3762 | case OPT_dumpspecs: | |
3763 | { | |
3764 | struct spec_list *sl; | |
3765 | init_spec (); | |
3766 | for (sl = specs; sl; sl = sl->next) | |
3767 | printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec)); | |
3768 | if (link_command_spec) | |
3769 | printf ("*link_command:\n%s\n\n", link_command_spec); | |
3770 | exit (0); | |
3771 | } | |
3772 | ||
3773 | case OPT_dumpversion: | |
3774 | printf ("%s\n", spec_version); | |
3775 | exit (0); | |
3776 | ||
3777 | case OPT_dumpmachine: | |
3778 | printf ("%s\n", spec_machine); | |
3779 | exit (0); | |
3780 | ||
0812bb06 | 3781 | case OPT_dumpfullversion: |
3782 | printf ("%s\n", BASEVER); | |
3783 | exit (0); | |
3784 | ||
5789e05b | 3785 | case OPT__version: |
e28aa114 | 3786 | print_version = 1; |
3787 | ||
3788 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3789 | if (is_cpp_driver) | |
3790 | add_preprocessor_option ("--version", strlen ("--version")); | |
3791 | add_assembler_option ("--version", strlen ("--version")); | |
3792 | add_linker_option ("--version", strlen ("--version")); | |
3793 | break; | |
3794 | ||
5789e05b | 3795 | case OPT__help: |
e28aa114 | 3796 | print_help_list = 1; |
3797 | ||
3798 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3799 | if (is_cpp_driver) | |
3800 | add_preprocessor_option ("--help", 6); | |
3801 | add_assembler_option ("--help", 6); | |
3802 | add_linker_option ("--help", 6); | |
3803 | break; | |
3804 | ||
5789e05b | 3805 | case OPT__help_: |
e28aa114 | 3806 | print_subprocess_help = 2; |
3807 | break; | |
3808 | ||
5789e05b | 3809 | case OPT__target_help: |
e28aa114 | 3810 | print_subprocess_help = 1; |
3811 | ||
3812 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3813 | if (is_cpp_driver) | |
3814 | add_preprocessor_option ("--target-help", 13); | |
3815 | add_assembler_option ("--target-help", 13); | |
3816 | add_linker_option ("--target-help", 13); | |
3817 | break; | |
3818 | ||
70eb49f5 | 3819 | case OPT__no_sysroot_suffix: |
e28aa114 | 3820 | case OPT_pass_exit_codes: |
3821 | case OPT_print_search_dirs: | |
3822 | case OPT_print_file_name_: | |
3823 | case OPT_print_prog_name_: | |
3824 | case OPT_print_multi_lib: | |
3825 | case OPT_print_multi_directory: | |
3826 | case OPT_print_sysroot: | |
3827 | case OPT_print_multi_os_directory: | |
77adc39e | 3828 | case OPT_print_multiarch: |
e28aa114 | 3829 | case OPT_print_sysroot_headers_suffix: |
3830 | case OPT_time: | |
3831 | case OPT_wrapper: | |
3832 | /* These options set the variables specified in common.opt | |
3833 | automatically, and do not need to be saved for spec | |
3834 | processing. */ | |
3835 | do_save = false; | |
3836 | break; | |
3837 | ||
3838 | case OPT_print_libgcc_file_name: | |
3839 | print_file_name = "libgcc.a"; | |
3840 | do_save = false; | |
3841 | break; | |
3842 | ||
c75e4990 | 3843 | case OPT_fuse_ld_bfd: |
3844 | use_ld = ".bfd"; | |
3845 | break; | |
3846 | ||
3847 | case OPT_fuse_ld_gold: | |
3848 | use_ld = ".gold"; | |
3849 | break; | |
3850 | ||
e28aa114 | 3851 | case OPT_fcompare_debug_second: |
3852 | compare_debug_second = 1; | |
3853 | break; | |
3854 | ||
3855 | case OPT_fcompare_debug: | |
3856 | switch (value) | |
3857 | { | |
3858 | case 0: | |
3859 | compare_debug_replacement_opt = "-fcompare-debug="; | |
3860 | arg = ""; | |
3861 | goto compare_debug_with_arg; | |
3862 | ||
3863 | case 1: | |
3864 | compare_debug_replacement_opt = "-fcompare-debug=-gtoggle"; | |
3865 | arg = "-gtoggle"; | |
3866 | goto compare_debug_with_arg; | |
3867 | ||
3868 | default: | |
3869 | gcc_unreachable (); | |
3870 | } | |
3871 | break; | |
3872 | ||
3873 | case OPT_fcompare_debug_: | |
3874 | compare_debug_replacement_opt = decoded->canonical_option[0]; | |
3875 | compare_debug_with_arg: | |
3876 | gcc_assert (decoded->canonical_option_num_elements == 1); | |
3877 | gcc_assert (arg != NULL); | |
400b18e7 | 3878 | if (*arg) |
e28aa114 | 3879 | compare_debug = 1; |
3880 | else | |
3881 | compare_debug = -1; | |
3882 | if (compare_debug < 0) | |
3883 | compare_debug_opt = NULL; | |
3884 | else | |
3885 | compare_debug_opt = arg; | |
556cfe53 | 3886 | save_switch (compare_debug_replacement_opt, 0, NULL, validated, true); |
dfa5c0d3 | 3887 | set_source_date_epoch_envvar (); |
e28aa114 | 3888 | return true; |
3889 | ||
9b11544d | 3890 | case OPT_fdiagnostics_color_: |
3891 | diagnostic_color_init (dc, value); | |
3892 | break; | |
3893 | ||
e28aa114 | 3894 | case OPT_Wa_: |
3895 | { | |
3896 | int prev, j; | |
3897 | /* Pass the rest of this option to the assembler. */ | |
3898 | ||
3899 | /* Split the argument at commas. */ | |
3900 | prev = 0; | |
3901 | for (j = 0; arg[j]; j++) | |
3902 | if (arg[j] == ',') | |
3903 | { | |
3904 | add_assembler_option (arg + prev, j - prev); | |
3905 | prev = j + 1; | |
3906 | } | |
3907 | ||
3908 | /* Record the part after the last comma. */ | |
3909 | add_assembler_option (arg + prev, j - prev); | |
3910 | } | |
3911 | do_save = false; | |
3912 | break; | |
3913 | ||
3914 | case OPT_Wp_: | |
3915 | { | |
3916 | int prev, j; | |
3917 | /* Pass the rest of this option to the preprocessor. */ | |
3918 | ||
3919 | /* Split the argument at commas. */ | |
3920 | prev = 0; | |
3921 | for (j = 0; arg[j]; j++) | |
3922 | if (arg[j] == ',') | |
3923 | { | |
3924 | add_preprocessor_option (arg + prev, j - prev); | |
3925 | prev = j + 1; | |
3926 | } | |
3927 | ||
3928 | /* Record the part after the last comma. */ | |
3929 | add_preprocessor_option (arg + prev, j - prev); | |
3930 | } | |
3931 | do_save = false; | |
3932 | break; | |
3933 | ||
3934 | case OPT_Wl_: | |
3935 | { | |
3936 | int prev, j; | |
3937 | /* Split the argument at commas. */ | |
3938 | prev = 0; | |
3939 | for (j = 0; arg[j]; j++) | |
3940 | if (arg[j] == ',') | |
3941 | { | |
3942 | add_infile (save_string (arg + prev, j - prev), "*"); | |
3943 | prev = j + 1; | |
3944 | } | |
3945 | /* Record the part after the last comma. */ | |
3946 | add_infile (arg + prev, "*"); | |
3947 | } | |
3948 | do_save = false; | |
3949 | break; | |
3950 | ||
3951 | case OPT_Xlinker: | |
3952 | add_infile (arg, "*"); | |
3953 | do_save = false; | |
3954 | break; | |
3955 | ||
3956 | case OPT_Xpreprocessor: | |
3957 | add_preprocessor_option (arg, strlen (arg)); | |
3958 | do_save = false; | |
3959 | break; | |
3960 | ||
3961 | case OPT_Xassembler: | |
3962 | add_assembler_option (arg, strlen (arg)); | |
3963 | do_save = false; | |
3964 | break; | |
3965 | ||
3966 | case OPT_l: | |
3967 | /* POSIX allows separation of -l and the lib arg; canonicalize | |
3968 | by concatenating -l with its arg */ | |
3969 | add_infile (concat ("-l", arg, NULL), "*"); | |
3970 | do_save = false; | |
3971 | break; | |
3972 | ||
67089c6b | 3973 | case OPT_L: |
3974 | /* Similarly, canonicalize -L for linkers that may not accept | |
3975 | separate arguments. */ | |
556cfe53 | 3976 | save_switch (concat ("-L", arg, NULL), 0, NULL, validated, true); |
67089c6b | 3977 | return true; |
3978 | ||
accf4556 | 3979 | case OPT_F: |
3980 | /* Likewise -F. */ | |
556cfe53 | 3981 | save_switch (concat ("-F", arg, NULL), 0, NULL, validated, true); |
accf4556 | 3982 | return true; |
3983 | ||
e28aa114 | 3984 | case OPT_save_temps: |
3985 | save_temps_flag = SAVE_TEMPS_CWD; | |
3986 | validated = true; | |
3987 | break; | |
3988 | ||
3989 | case OPT_save_temps_: | |
3990 | if (strcmp (arg, "cwd") == 0) | |
3991 | save_temps_flag = SAVE_TEMPS_CWD; | |
3992 | else if (strcmp (arg, "obj") == 0 | |
3993 | || strcmp (arg, "object") == 0) | |
3994 | save_temps_flag = SAVE_TEMPS_OBJ; | |
3995 | else | |
c05be867 | 3996 | fatal_error (input_location, "%qs is an unknown -save-temps option", |
e28aa114 | 3997 | decoded->orig_option_with_args_text); |
3998 | break; | |
3999 | ||
4000 | case OPT_no_canonical_prefixes: | |
4001 | /* Already handled as a special case, so ignored here. */ | |
4002 | do_save = false; | |
4003 | break; | |
4004 | ||
4005 | case OPT_pipe: | |
4006 | validated = true; | |
e28aa114 | 4007 | /* These options set the variables specified in common.opt |
4008 | automatically, but do need to be saved for spec | |
4009 | processing. */ | |
4010 | break; | |
4011 | ||
e28aa114 | 4012 | case OPT_specs_: |
4013 | { | |
4014 | struct user_specs *user = XNEW (struct user_specs); | |
4015 | ||
4016 | user->next = (struct user_specs *) 0; | |
4017 | user->filename = arg; | |
4018 | if (user_specs_tail) | |
4019 | user_specs_tail->next = user; | |
4020 | else | |
4021 | user_specs_head = user; | |
4022 | user_specs_tail = user; | |
4023 | } | |
556cfe53 | 4024 | validated = true; |
e28aa114 | 4025 | break; |
4026 | ||
4027 | case OPT__sysroot_: | |
4028 | target_system_root = arg; | |
4029 | target_system_root_changed = 1; | |
4030 | do_save = false; | |
4031 | break; | |
4032 | ||
4033 | case OPT_time_: | |
4034 | if (report_times_to_file) | |
4035 | fclose (report_times_to_file); | |
4036 | report_times_to_file = fopen (arg, "a"); | |
4037 | do_save = false; | |
4038 | break; | |
4039 | ||
4040 | case OPT____: | |
4041 | /* "-###" | |
4042 | This is similar to -v except that there is no execution | |
4043 | of the commands and the echoed arguments are quoted. It | |
4044 | is intended for use in shell scripts to capture the | |
4045 | driver-generated command line. */ | |
4046 | verbose_only_flag++; | |
6bd9d862 | 4047 | verbose_flag = 1; |
e28aa114 | 4048 | do_save = false; |
4049 | break; | |
4050 | ||
4051 | case OPT_B: | |
4052 | { | |
4053 | size_t len = strlen (arg); | |
4054 | ||
4055 | /* Catch the case where the user has forgotten to append a | |
4056 | directory separator to the path. Note, they may be using | |
4057 | -B to add an executable name prefix, eg "i386-elf-", in | |
4058 | order to distinguish between multiple installations of | |
4059 | GCC in the same directory. Hence we must check to see | |
4060 | if appending a directory separator actually makes a | |
4061 | valid directory name. */ | |
4062 | if (!IS_DIR_SEPARATOR (arg[len - 1]) | |
4063 | && is_directory (arg, false)) | |
4064 | { | |
4065 | char *tmp = XNEWVEC (char, len + 2); | |
4066 | strcpy (tmp, arg); | |
4067 | tmp[len] = DIR_SEPARATOR; | |
4068 | tmp[++len] = 0; | |
4069 | arg = tmp; | |
4070 | } | |
4071 | ||
4072 | add_prefix (&exec_prefixes, arg, NULL, | |
4073 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
4074 | add_prefix (&startfile_prefixes, arg, NULL, | |
4075 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
4076 | add_prefix (&include_prefixes, arg, NULL, | |
4077 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
4078 | } | |
4079 | validated = true; | |
4080 | break; | |
4081 | ||
800e901e | 4082 | case OPT_E: |
4083 | have_E = true; | |
4084 | break; | |
4085 | ||
e28aa114 | 4086 | case OPT_x: |
4087 | spec_lang = arg; | |
4088 | if (!strcmp (spec_lang, "none")) | |
4089 | /* Suppress the warning if -xnone comes after the last input | |
4090 | file, because alternate command interfaces like g++ might | |
4091 | find it useful to place -xnone after each input file. */ | |
4092 | spec_lang = 0; | |
4093 | else | |
4094 | last_language_n_infiles = n_infiles; | |
4095 | do_save = false; | |
4096 | break; | |
4097 | ||
e28aa114 | 4098 | case OPT_o: |
4099 | have_o = 1; | |
4100 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX) | |
4101 | arg = convert_filename (arg, ! have_c, 0); | |
4102 | #endif | |
4d0069ee | 4103 | output_file = arg; |
e28aa114 | 4104 | /* Save the output name in case -save-temps=obj was used. */ |
4105 | save_temps_prefix = xstrdup (arg); | |
4106 | /* On some systems, ld cannot handle "-o" without a space. So | |
4107 | split the option from its argument. */ | |
556cfe53 | 4108 | save_switch ("-o", 1, &arg, validated, true); |
e28aa114 | 4109 | return true; |
4110 | ||
d34b1105 | 4111 | #ifdef ENABLE_DEFAULT_PIE |
4112 | case OPT_pie: | |
4113 | /* -pie is turned on by default. */ | |
4114 | #endif | |
4115 | ||
e28aa114 | 4116 | case OPT_static_libgcc: |
4117 | case OPT_shared_libgcc: | |
4118 | case OPT_static_libgfortran: | |
4119 | case OPT_static_libstdc__: | |
4120 | /* These are always valid, since gcc.c itself understands the | |
4121 | first two, gfortranspec.c understands -static-libgfortran and | |
4122 | g++spec.c understands -static-libstdc++ */ | |
4123 | validated = true; | |
4124 | break; | |
4125 | ||
3e17769e | 4126 | case OPT_fwpa: |
4127 | flag_wpa = ""; | |
4128 | break; | |
4129 | ||
38e21583 | 4130 | case OPT_foffload_: |
4131 | handle_foffload_option (arg); | |
4132 | break; | |
4133 | ||
e28aa114 | 4134 | default: |
cb22f930 | 4135 | /* Various driver options need no special processing at this |
4136 | point, having been handled in a prescan above or being | |
4137 | handled by specs. */ | |
4138 | break; | |
e28aa114 | 4139 | } |
4140 | ||
4141 | if (do_save) | |
4142 | save_switch (decoded->canonical_option[0], | |
4143 | decoded->canonical_option_num_elements - 1, | |
556cfe53 | 4144 | &decoded->canonical_option[1], validated, true); |
e28aa114 | 4145 | return true; |
4146 | } | |
4147 | ||
4ff887c5 | 4148 | /* Put the driver's standard set of option handlers in *HANDLERS. */ |
4149 | ||
4150 | static void | |
4151 | set_option_handlers (struct cl_option_handlers *handlers) | |
4152 | { | |
4153 | handlers->unknown_option_callback = driver_unknown_option_callback; | |
4154 | handlers->wrong_lang_callback = driver_wrong_lang_callback; | |
90336809 | 4155 | handlers->num_handlers = 3; |
4ff887c5 | 4156 | handlers->handlers[0].handler = driver_handle_option; |
4157 | handlers->handlers[0].mask = CL_DRIVER; | |
90336809 | 4158 | handlers->handlers[1].handler = common_handle_option; |
4159 | handlers->handlers[1].mask = CL_COMMON; | |
4160 | handlers->handlers[2].handler = target_handle_option; | |
4161 | handlers->handlers[2].mask = CL_TARGET; | |
4ff887c5 | 4162 | } |
4163 | ||
d7a9644e | 4164 | /* Create the vector `switches' and its contents. |
4165 | Store its length in `n_switches'. */ | |
4166 | ||
4167 | static void | |
e62df35b | 4168 | process_command (unsigned int decoded_options_count, |
4169 | struct cl_decoded_option *decoded_options) | |
d7a9644e | 4170 | { |
e40d43cc | 4171 | const char *temp; |
4172 | char *temp1; | |
ce0fdb91 | 4173 | char *tooldir_prefix, *tooldir_prefix2; |
d05a1771 | 4174 | char *(*get_relative_prefix) (const char *, const char *, |
4175 | const char *) = NULL; | |
e28aa114 | 4176 | struct cl_option_handlers handlers; |
e62df35b | 4177 | unsigned int j; |
d7a9644e | 4178 | |
26a4a13d | 4179 | gcc_exec_prefix = env.get ("GCC_EXEC_PREFIX"); |
bfef3e2f | 4180 | |
d7a9644e | 4181 | n_switches = 0; |
4182 | n_infiles = 0; | |
9e56255a | 4183 | added_libraries = 0; |
0d3f9dba | 4184 | |
4dd56bd9 | 4185 | /* Figure compiler version from version string. */ |
4186 | ||
2c815aff | 4187 | compiler_version = temp1 = xstrdup (version_string); |
713829e9 | 4188 | |
e40d43cc | 4189 | for (; *temp1; ++temp1) |
4dd56bd9 | 4190 | { |
e40d43cc | 4191 | if (*temp1 == ' ') |
4dd56bd9 | 4192 | { |
e40d43cc | 4193 | *temp1 = '\0'; |
4dd56bd9 | 4194 | break; |
4195 | } | |
4196 | } | |
d7a9644e | 4197 | |
d05a1771 | 4198 | /* Handle any -no-canonical-prefixes flag early, to assign the function |
4199 | that builds relative prefixes. This function creates default search | |
4200 | paths that are needed later in normal option handling. */ | |
4201 | ||
5789e05b | 4202 | for (j = 1; j < decoded_options_count; j++) |
d05a1771 | 4203 | { |
5789e05b | 4204 | if (decoded_options[j].opt_index == OPT_no_canonical_prefixes) |
d05a1771 | 4205 | { |
4206 | get_relative_prefix = make_relative_prefix_ignore_links; | |
4207 | break; | |
4208 | } | |
4209 | } | |
4210 | if (! get_relative_prefix) | |
4211 | get_relative_prefix = make_relative_prefix; | |
4212 | ||
b155ba2f | 4213 | /* Set up the default search paths. If there is no GCC_EXEC_PREFIX, |
e62df35b | 4214 | see if we can create it from the pathname specified in |
4215 | decoded_options[0].arg. */ | |
b155ba2f | 4216 | |
9db45a87 | 4217 | gcc_libexec_prefix = standard_libexec_prefix; |
b155ba2f | 4218 | #ifndef VMS |
4219 | /* FIXME: make_relative_prefix doesn't yet work for VMS. */ | |
4220 | if (!gcc_exec_prefix) | |
4221 | { | |
e62df35b | 4222 | gcc_exec_prefix = get_relative_prefix (decoded_options[0].arg, |
d05a1771 | 4223 | standard_bindir_prefix, |
4224 | standard_exec_prefix); | |
e62df35b | 4225 | gcc_libexec_prefix = get_relative_prefix (decoded_options[0].arg, |
d05a1771 | 4226 | standard_bindir_prefix, |
4227 | standard_libexec_prefix); | |
b155ba2f | 4228 | if (gcc_exec_prefix) |
99c00302 | 4229 | xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL)); |
b155ba2f | 4230 | } |
9db45a87 | 4231 | else |
01b26439 | 4232 | { |
4233 | /* make_relative_prefix requires a program name, but | |
4234 | GCC_EXEC_PREFIX is typically a directory name with a trailing | |
4235 | / (which is ignored by make_relative_prefix), so append a | |
4236 | program name. */ | |
4237 | char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL); | |
d05a1771 | 4238 | gcc_libexec_prefix = get_relative_prefix (tmp_prefix, |
4239 | standard_exec_prefix, | |
4240 | standard_libexec_prefix); | |
c4328bcc | 4241 | |
4242 | /* The path is unrelocated, so fallback to the original setting. */ | |
4243 | if (!gcc_libexec_prefix) | |
4244 | gcc_libexec_prefix = standard_libexec_prefix; | |
4245 | ||
01b26439 | 4246 | free (tmp_prefix); |
4247 | } | |
9db45a87 | 4248 | #else |
b155ba2f | 4249 | #endif |
c4328bcc | 4250 | /* From this point onward, gcc_exec_prefix is non-null if the toolchain |
4251 | is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX | |
e62df35b | 4252 | or an automatically created GCC_EXEC_PREFIX from |
4253 | decoded_options[0].arg. */ | |
d7a9644e | 4254 | |
15b28e16 | 4255 | /* Do language-specific adjustment/addition of flags. */ |
cb22f930 | 4256 | lang_specific_driver (&decoded_options, &decoded_options_count, |
15b28e16 | 4257 | &added_libraries); |
4258 | ||
bfef3e2f | 4259 | if (gcc_exec_prefix) |
d7a9644e | 4260 | { |
055237ef | 4261 | int len = strlen (gcc_exec_prefix); |
7d3bd8c0 | 4262 | |
9db45a87 | 4263 | if (len > (int) sizeof ("/lib/gcc/") - 1 |
79b23a1e | 4264 | && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1]))) |
055237ef | 4265 | { |
9db45a87 | 4266 | temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1; |
79b23a1e | 4267 | if (IS_DIR_SEPARATOR (*temp) |
82715bcd | 4268 | && filename_ncmp (temp + 1, "lib", 3) == 0 |
79b23a1e | 4269 | && IS_DIR_SEPARATOR (temp[4]) |
82715bcd | 4270 | && filename_ncmp (temp + 5, "gcc", 3) == 0) |
9db45a87 | 4271 | len -= sizeof ("/lib/gcc/") - 1; |
055237ef | 4272 | } |
4273 | ||
4274 | set_std_prefix (gcc_exec_prefix, len); | |
9db45a87 | 4275 | add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC", |
2af84186 | 4276 | PREFIX_PRIORITY_LAST, 0, 0); |
acd84059 | 4277 | add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", |
2af84186 | 4278 | PREFIX_PRIORITY_LAST, 0, 0); |
d7a9644e | 4279 | } |
4280 | ||
4281 | /* COMPILER_PATH and LIBRARY_PATH have values | |
4282 | that are lists of directory names with colons. */ | |
4283 | ||
26a4a13d | 4284 | temp = env.get ("COMPILER_PATH"); |
d7a9644e | 4285 | if (temp) |
4286 | { | |
e40d43cc | 4287 | const char *startp, *endp; |
25a1c410 | 4288 | char *nstore = (char *) alloca (strlen (temp) + 3); |
d7a9644e | 4289 | |
4290 | startp = endp = temp; | |
4291 | while (1) | |
4292 | { | |
99b832c9 | 4293 | if (*endp == PATH_SEPARATOR || *endp == 0) |
d7a9644e | 4294 | { |
026f2c7a | 4295 | strncpy (nstore, startp, endp - startp); |
d7a9644e | 4296 | if (endp == startp) |
4e2023c8 | 4297 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
79b23a1e | 4298 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
d7a9644e | 4299 | { |
026f2c7a | 4300 | nstore[endp - startp] = DIR_SEPARATOR; |
4301 | nstore[endp - startp + 1] = 0; | |
d7a9644e | 4302 | } |
4303 | else | |
026f2c7a | 4304 | nstore[endp - startp] = 0; |
acd84059 | 4305 | add_prefix (&exec_prefixes, nstore, 0, |
2af84186 | 4306 | PREFIX_PRIORITY_LAST, 0, 0); |
42bbc7e6 | 4307 | add_prefix (&include_prefixes, nstore, 0, |
2af84186 | 4308 | PREFIX_PRIORITY_LAST, 0, 0); |
d7a9644e | 4309 | if (*endp == 0) |
4310 | break; | |
4311 | endp = startp = endp + 1; | |
4312 | } | |
4313 | else | |
4314 | endp++; | |
4315 | } | |
4316 | } | |
4317 | ||
26a4a13d | 4318 | temp = env.get (LIBRARY_PATH_ENV); |
c6456dcd | 4319 | if (temp && *cross_compile == '0') |
d7a9644e | 4320 | { |
e40d43cc | 4321 | const char *startp, *endp; |
25a1c410 | 4322 | char *nstore = (char *) alloca (strlen (temp) + 3); |
d7a9644e | 4323 | |
4324 | startp = endp = temp; | |
4325 | while (1) | |
4326 | { | |
99b832c9 | 4327 | if (*endp == PATH_SEPARATOR || *endp == 0) |
d7a9644e | 4328 | { |
026f2c7a | 4329 | strncpy (nstore, startp, endp - startp); |
d7a9644e | 4330 | if (endp == startp) |
4e2023c8 | 4331 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
79b23a1e | 4332 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
d7a9644e | 4333 | { |
026f2c7a | 4334 | nstore[endp - startp] = DIR_SEPARATOR; |
4335 | nstore[endp - startp + 1] = 0; | |
d7a9644e | 4336 | } |
4337 | else | |
026f2c7a | 4338 | nstore[endp - startp] = 0; |
d946ea19 | 4339 | add_prefix (&startfile_prefixes, nstore, NULL, |
2af84186 | 4340 | PREFIX_PRIORITY_LAST, 0, 1); |
d7a9644e | 4341 | if (*endp == 0) |
4342 | break; | |
4343 | endp = startp = endp + 1; | |
4344 | } | |
4345 | else | |
4346 | endp++; | |
4347 | } | |
4348 | } | |
4349 | ||
4350 | /* Use LPATH like LIBRARY_PATH (for the CMU build program). */ | |
26a4a13d | 4351 | temp = env.get ("LPATH"); |
c6456dcd | 4352 | if (temp && *cross_compile == '0') |
d7a9644e | 4353 | { |
e40d43cc | 4354 | const char *startp, *endp; |
25a1c410 | 4355 | char *nstore = (char *) alloca (strlen (temp) + 3); |
d7a9644e | 4356 | |
4357 | startp = endp = temp; | |
4358 | while (1) | |
4359 | { | |
99b832c9 | 4360 | if (*endp == PATH_SEPARATOR || *endp == 0) |
d7a9644e | 4361 | { |
026f2c7a | 4362 | strncpy (nstore, startp, endp - startp); |
d7a9644e | 4363 | if (endp == startp) |
4e2023c8 | 4364 | strcpy (nstore, concat (".", dir_separator_str, NULL)); |
79b23a1e | 4365 | else if (!IS_DIR_SEPARATOR (endp[-1])) |
d7a9644e | 4366 | { |
026f2c7a | 4367 | nstore[endp - startp] = DIR_SEPARATOR; |
4368 | nstore[endp - startp + 1] = 0; | |
d7a9644e | 4369 | } |
4370 | else | |
026f2c7a | 4371 | nstore[endp - startp] = 0; |
d946ea19 | 4372 | add_prefix (&startfile_prefixes, nstore, NULL, |
2af84186 | 4373 | PREFIX_PRIORITY_LAST, 0, 1); |
d7a9644e | 4374 | if (*endp == 0) |
4375 | break; | |
4376 | endp = startp = endp + 1; | |
4377 | } | |
4378 | else | |
4379 | endp++; | |
4380 | } | |
4381 | } | |
4382 | ||
bd338b2c | 4383 | /* Process the options and store input files and switches in their |
4384 | vectors. */ | |
4385 | ||
4386 | last_language_n_infiles = -1; | |
d7a9644e | 4387 | |
4ff887c5 | 4388 | set_option_handlers (&handlers); |
0bfd146e | 4389 | |
e28aa114 | 4390 | for (j = 1; j < decoded_options_count; j++) |
4391 | { | |
4392 | switch (decoded_options[j].opt_index) | |
74e4079a | 4393 | { |
e28aa114 | 4394 | case OPT_S: |
4395 | case OPT_c: | |
4396 | case OPT_E: | |
4397 | have_c = 1; | |
4398 | break; | |
74e4079a | 4399 | } |
e28aa114 | 4400 | if (have_c) |
4401 | break; | |
4402 | } | |
d7a9644e | 4403 | |
e28aa114 | 4404 | for (j = 1; j < decoded_options_count; j++) |
4405 | { | |
4406 | if (decoded_options[j].opt_index == OPT_SPECIAL_input_file) | |
e71cc307 | 4407 | { |
e28aa114 | 4408 | const char *arg = decoded_options[j].arg; |
4409 | const char *p = strrchr (arg, '@'); | |
bd338b2c | 4410 | char *fname; |
4411 | long offset; | |
4412 | int consumed; | |
4413 | #ifdef HAVE_TARGET_OBJECT_SUFFIX | |
e28aa114 | 4414 | arg = convert_filename (arg, 0, access (arg, F_OK)); |
bd338b2c | 4415 | #endif |
4416 | /* For LTO static archive support we handle input file | |
4417 | specifications that are composed of a filename and | |
4418 | an offset like FNAME@OFFSET. */ | |
4419 | if (p | |
e28aa114 | 4420 | && p != arg |
bd338b2c | 4421 | && sscanf (p, "@%li%n", &offset, &consumed) >= 1 |
4422 | && strlen (p) == (unsigned int)consumed) | |
4423 | { | |
e28aa114 | 4424 | fname = (char *)xmalloc (p - arg + 1); |
4425 | memcpy (fname, arg, p - arg); | |
4426 | fname[p - arg] = '\0'; | |
bd338b2c | 4427 | /* Only accept non-stdin and existing FNAME parts, otherwise |
4428 | try with the full name. */ | |
4429 | if (strcmp (fname, "-") == 0 || access (fname, F_OK) < 0) | |
4430 | { | |
4431 | free (fname); | |
e28aa114 | 4432 | fname = xstrdup (arg); |
bd338b2c | 4433 | } |
4434 | } | |
4435 | else | |
e28aa114 | 4436 | fname = xstrdup (arg); |
556cfe53 | 4437 | |
bd338b2c | 4438 | if (strcmp (fname, "-") != 0 && access (fname, F_OK) < 0) |
2d5b5385 | 4439 | { |
4440 | if (fname[0] == '@' && access (fname + 1, F_OK) < 0) | |
4441 | perror_with_name (fname + 1); | |
4442 | else | |
4443 | perror_with_name (fname); | |
4444 | } | |
bd338b2c | 4445 | else |
e28aa114 | 4446 | add_infile (arg, spec_lang); |
bd338b2c | 4447 | |
4448 | free (fname); | |
e28aa114 | 4449 | continue; |
e71cc307 | 4450 | } |
e28aa114 | 4451 | |
f83b64ca | 4452 | read_cmdline_option (&global_options, &global_options_set, |
3c6c0e40 | 4453 | decoded_options + j, UNKNOWN_LOCATION, |
4454 | CL_DRIVER, &handlers, global_dc); | |
d7a9644e | 4455 | } |
4456 | ||
daa8f58f | 4457 | /* If the user didn't specify any, default to all configured offload |
4458 | targets. */ | |
5f3001a9 | 4459 | if (ENABLE_OFFLOADING && offload_targets == NULL) |
daa8f58f | 4460 | handle_foffload_option (OFFLOAD_TARGETS); |
daa8f58f | 4461 | |
25dbe4c7 | 4462 | if (output_file |
4463 | && strcmp (output_file, "-") != 0 | |
4464 | && strcmp (output_file, HOST_BIT_BUCKET) != 0) | |
4d0069ee | 4465 | { |
4466 | int i; | |
4467 | for (i = 0; i < n_infiles; i++) | |
4468 | if ((!infiles[i].language || infiles[i].language[0] != '*') | |
4469 | && canonical_filename_eq (infiles[i].name, output_file)) | |
c05be867 | 4470 | fatal_error (input_location, |
4471 | "input file %qs is the same as output file", | |
4d0069ee | 4472 | output_file); |
4473 | } | |
4474 | ||
cc92bc82 | 4475 | /* If -save-temps=obj and -o name, create the prefix to use for %b. |
4476 | Otherwise just make -save-temps=obj the same as -save-temps=cwd. */ | |
4477 | if (save_temps_flag == SAVE_TEMPS_OBJ && save_temps_prefix != NULL) | |
4478 | { | |
4479 | save_temps_length = strlen (save_temps_prefix); | |
4480 | temp = strrchr (lbasename (save_temps_prefix), '.'); | |
4481 | if (temp) | |
4482 | { | |
4483 | save_temps_length -= strlen (temp); | |
4484 | save_temps_prefix[save_temps_length] = '\0'; | |
4485 | } | |
4486 | ||
4487 | } | |
4488 | else if (save_temps_prefix != NULL) | |
4489 | { | |
4490 | free (save_temps_prefix); | |
4491 | save_temps_prefix = NULL; | |
4492 | } | |
4493 | ||
288e5bba | 4494 | if (save_temps_flag && use_pipes) |
805e22b2 | 4495 | { |
4496 | /* -save-temps overrides -pipe, so that temp files are produced */ | |
4497 | if (save_temps_flag) | |
a922df2e | 4498 | warning (0, "-pipe ignored because -save-temps specified"); |
805e22b2 | 4499 | use_pipes = 0; |
4500 | } | |
952f0048 | 4501 | |
71278019 | 4502 | if (!compare_debug) |
4503 | { | |
26a4a13d | 4504 | const char *gcd = env.get ("GCC_COMPARE_DEBUG"); |
71278019 | 4505 | |
4506 | if (gcd && gcd[0] == '-') | |
4507 | { | |
4508 | compare_debug = 2; | |
4509 | compare_debug_opt = gcd; | |
71278019 | 4510 | } |
4511 | else if (gcd && *gcd && strcmp (gcd, "0")) | |
4512 | { | |
4513 | compare_debug = 3; | |
4514 | compare_debug_opt = "-gtoggle"; | |
71278019 | 4515 | } |
4516 | } | |
4517 | else if (compare_debug < 0) | |
4518 | { | |
4519 | compare_debug = 0; | |
4520 | gcc_assert (!compare_debug_opt); | |
4521 | } | |
4522 | ||
c4328bcc | 4523 | /* Set up the search paths. We add directories that we expect to |
4524 | contain GNU Toolchain components before directories specified by | |
4525 | the machine description so that we will find GNU components (like | |
48e1416a | 4526 | the GNU assembler) before those of the host system. */ |
d7a9644e | 4527 | |
c4328bcc | 4528 | /* If we don't know where the toolchain has been installed, use the |
4529 | configured-in locations. */ | |
4530 | if (!gcc_exec_prefix) | |
4531 | { | |
b9374a77 | 4532 | #ifndef OS2 |
c4328bcc | 4533 | add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC", |
4534 | PREFIX_PRIORITY_LAST, 1, 0); | |
4535 | add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS", | |
4536 | PREFIX_PRIORITY_LAST, 2, 0); | |
4537 | add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS", | |
4538 | PREFIX_PRIORITY_LAST, 2, 0); | |
b9374a77 | 4539 | #endif |
c4328bcc | 4540 | add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS", |
4541 | PREFIX_PRIORITY_LAST, 1, 0); | |
4542 | } | |
d7a9644e | 4543 | |
c4328bcc | 4544 | gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix)); |
f2fd5997 | 4545 | tooldir_prefix2 = concat (tooldir_base_prefix, spec_machine, |
ce0fdb91 | 4546 | dir_separator_str, NULL); |
6c6aff9e | 4547 | |
c4328bcc | 4548 | /* Look for tools relative to the location from which the driver is |
4549 | running, or, if that is not available, the configured prefix. */ | |
4550 | tooldir_prefix | |
4551 | = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix, | |
77415571 | 4552 | spec_host_machine, dir_separator_str, spec_version, |
4553 | accel_dir_suffix, dir_separator_str, tooldir_prefix2, NULL); | |
ce0fdb91 | 4554 | free (tooldir_prefix2); |
6c6aff9e | 4555 | |
2c815aff | 4556 | add_prefix (&exec_prefixes, |
4e2023c8 | 4557 | concat (tooldir_prefix, "bin", dir_separator_str, NULL), |
2af84186 | 4558 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0); |
b9374a77 | 4559 | add_prefix (&startfile_prefixes, |
4e2023c8 | 4560 | concat (tooldir_prefix, "lib", dir_separator_str, NULL), |
2af84186 | 4561 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1); |
ce0fdb91 | 4562 | free (tooldir_prefix); |
06e67e16 | 4563 | |
17acc97a | 4564 | #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS) |
4565 | /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix, | |
4566 | then consider it to relocate with the rest of the GCC installation | |
4567 | if GCC_EXEC_PREFIX is set. | |
4568 | ``make_relative_prefix'' is not compiled for VMS, so don't call it. */ | |
bd338b2c | 4569 | if (target_system_root && !target_system_root_changed && gcc_exec_prefix) |
805e22b2 | 4570 | { |
e62df35b | 4571 | char *tmp_prefix = get_relative_prefix (decoded_options[0].arg, |
d05a1771 | 4572 | standard_bindir_prefix, |
4573 | target_system_root); | |
805e22b2 | 4574 | if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0) |
17acc97a | 4575 | { |
4576 | target_system_root = tmp_prefix; | |
4577 | target_system_root_changed = 1; | |
4578 | } | |
805e22b2 | 4579 | } |
17acc97a | 4580 | #endif |
805e22b2 | 4581 | |
a45072dd | 4582 | /* More prefixes are enabled in main, after we read the specs file |
4583 | and determine whether this is cross-compilation or not. */ | |
d7a9644e | 4584 | |
b0e7b414 | 4585 | if (n_infiles == last_language_n_infiles && spec_lang != 0) |
a8c464ac | 4586 | warning (0, "%<-x %s%> after last input file has no effect", spec_lang); |
d7a9644e | 4587 | |
c5f21b95 | 4588 | /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG |
4589 | environment variable. */ | |
71278019 | 4590 | if (compare_debug == 2 || compare_debug == 3) |
4591 | { | |
c5f21b95 | 4592 | const char *opt = concat ("-fcompare-debug=", compare_debug_opt, NULL); |
4593 | save_switch (opt, 0, NULL, false, true); | |
71278019 | 4594 | compare_debug = 1; |
4595 | } | |
4596 | ||
258d3911 | 4597 | /* Ensure we only invoke each subprocess once. */ |
39932bd2 | 4598 | if (print_subprocess_help || print_help_list || print_version) |
258d3911 | 4599 | { |
bd338b2c | 4600 | n_infiles = 0; |
258d3911 | 4601 | |
87c75316 | 4602 | /* Create a dummy input file, so that we can pass |
4603 | the help option on to the various sub-processes. */ | |
bd338b2c | 4604 | add_infile ("help-dummy", "c"); |
258d3911 | 4605 | } |
4606 | ||
e1a390d6 | 4607 | /* Decide if undefined variable references are allowed in specs. */ |
4608 | ||
4609 | /* --version and --help alone or together are safe. Note that -v would | |
4610 | make them unsafe, as they'd then be run for subprocesses as well, the | |
4611 | location of which might depend on variables possibly coming from | |
4612 | self-specs. | |
4613 | ||
4614 | Count the number of options we have for which undefined variables | |
4615 | are harmless for sure, and check that nothing else is set. */ | |
4616 | ||
4617 | unsigned n_varsafe_options = 0; | |
4618 | ||
4619 | if (print_version) | |
4620 | n_varsafe_options++; | |
4621 | ||
4622 | if (print_help_list) | |
4623 | n_varsafe_options++; | |
4624 | ||
4625 | spec_undefvar_allowed = (n_varsafe_options == decoded_options_count - 1); | |
4626 | ||
bd338b2c | 4627 | alloc_switch (); |
d7a9644e | 4628 | switches[n_switches].part1 = 0; |
bd338b2c | 4629 | alloc_infile (); |
d7a9644e | 4630 | infiles[n_infiles].name = 0; |
4631 | } | |
32d661fc | 4632 | |
805e22b2 | 4633 | /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS |
32d661fc | 4634 | and place that in the environment. */ |
4635 | ||
4636 | static void | |
952f0048 | 4637 | set_collect_gcc_options (void) |
32d661fc | 4638 | { |
4639 | int i; | |
4640 | int first_time; | |
4641 | ||
4642 | /* Build COLLECT_GCC_OPTIONS to have all of the options specified to | |
4643 | the compiler. */ | |
4644 | obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=", | |
4645 | sizeof ("COLLECT_GCC_OPTIONS=") - 1); | |
4646 | ||
4647 | first_time = TRUE; | |
4648 | for (i = 0; (int) i < n_switches; i++) | |
4649 | { | |
4650 | const char *const *args; | |
4651 | const char *p, *q; | |
4652 | if (!first_time) | |
4653 | obstack_grow (&collect_obstack, " ", 1); | |
4654 | ||
4655 | first_time = FALSE; | |
4656 | ||
4657 | /* Ignore elided switches. */ | |
5c1421d7 | 4658 | if ((switches[i].live_cond |
4659 | & (SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC)) | |
4660 | == SWITCH_IGNORE) | |
32d661fc | 4661 | continue; |
4662 | ||
4663 | obstack_grow (&collect_obstack, "'-", 2); | |
4664 | q = switches[i].part1; | |
4665 | while ((p = strchr (q, '\''))) | |
4666 | { | |
4667 | obstack_grow (&collect_obstack, q, p - q); | |
4668 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4669 | q = ++p; | |
4670 | } | |
4671 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4672 | obstack_grow (&collect_obstack, "'", 1); | |
4673 | ||
4674 | for (args = switches[i].args; args && *args; args++) | |
4675 | { | |
4676 | obstack_grow (&collect_obstack, " '", 2); | |
4677 | q = *args; | |
4678 | while ((p = strchr (q, '\''))) | |
4679 | { | |
4680 | obstack_grow (&collect_obstack, q, p - q); | |
4681 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4682 | q = ++p; | |
4683 | } | |
4684 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4685 | obstack_grow (&collect_obstack, "'", 1); | |
4686 | } | |
4687 | } | |
4688 | obstack_grow (&collect_obstack, "\0", 1); | |
99c00302 | 4689 | xputenv (XOBFINISH (&collect_obstack, char *)); |
32d661fc | 4690 | } |
d7a9644e | 4691 | \f |
4692 | /* Process a spec string, accumulating and running commands. */ | |
4693 | ||
4694 | /* These variables describe the input file name. | |
4695 | input_file_number is the index on outfiles of this file, | |
4696 | so that the output file name can be stored for later use by %o. | |
4697 | input_basename is the start of the part of the input file | |
4698 | sans all directory names, and basename_length is the number | |
4699 | of characters starting there excluding the suffix .c or whatever. */ | |
4700 | ||
460b8bb3 | 4701 | static const char *gcc_input_filename; |
d7a9644e | 4702 | static int input_file_number; |
f9b7c0b9 | 4703 | size_t input_filename_length; |
d7a9644e | 4704 | static int basename_length; |
1cf79a1a | 4705 | static int suffixed_basename_length; |
e40d43cc | 4706 | static const char *input_basename; |
4707 | static const char *input_suffix; | |
030ec15c | 4708 | #ifndef HOST_LACKS_INODE_NUMBERS |
74e4079a | 4709 | static struct stat input_stat; |
030ec15c | 4710 | #endif |
74e4079a | 4711 | static int input_stat_set; |
d7a9644e | 4712 | |
96842e40 | 4713 | /* The compiler used to process the current input file. */ |
4714 | static struct compiler *input_file_compiler; | |
4715 | ||
d7a9644e | 4716 | /* These are variables used within do_spec and do_spec_1. */ |
4717 | ||
4718 | /* Nonzero if an arg has been started and not yet terminated | |
4719 | (with space, tab or newline). */ | |
4720 | static int arg_going; | |
4721 | ||
4722 | /* Nonzero means %d or %g has been seen; the next arg to be terminated | |
4723 | is a temporary file name. */ | |
4724 | static int delete_this_arg; | |
4725 | ||
4726 | /* Nonzero means %w has been seen; the next arg to be terminated | |
4727 | is the output file name of this compilation. */ | |
4728 | static int this_is_output_file; | |
4729 | ||
4730 | /* Nonzero means %s has been seen; the next arg to be terminated | |
4731 | is the name of a library file and we should try the standard | |
4732 | search dirs for it. */ | |
4733 | static int this_is_library_file; | |
4734 | ||
d7ee9e9b | 4735 | /* Nonzero means %T has been seen; the next arg to be terminated |
4736 | is the name of a linker script and we should try all of the | |
4737 | standard search dirs for it. If it is found insert a --script | |
4738 | command line switch and then substitute the full path in place, | |
4739 | otherwise generate an error message. */ | |
4740 | static int this_is_linker_script; | |
4741 | ||
f90016ef | 4742 | /* Nonzero means that the input of this command is coming from a pipe. */ |
4743 | static int input_from_pipe; | |
4744 | ||
bdbd5352 | 4745 | /* Nonnull means substitute this for any suffix when outputting a switches |
aa40f561 | 4746 | arguments. */ |
bdbd5352 | 4747 | static const char *suffix_subst; |
4748 | ||
558cc3be | 4749 | /* If there is an argument being accumulated, terminate it and store it. */ |
4750 | ||
4751 | static void | |
4752 | end_going_arg (void) | |
4753 | { | |
4754 | if (arg_going) | |
4755 | { | |
4756 | const char *string; | |
4757 | ||
4758 | obstack_1grow (&obstack, 0); | |
4759 | string = XOBFINISH (&obstack, const char *); | |
4760 | if (this_is_library_file) | |
4761 | string = find_file (string); | |
d7ee9e9b | 4762 | if (this_is_linker_script) |
4763 | { | |
4764 | char * full_script_path = find_a_file (&startfile_prefixes, string, R_OK, true); | |
4765 | ||
4766 | if (full_script_path == NULL) | |
4767 | { | |
a8c464ac | 4768 | error ("unable to locate default linker script %qs in the library search paths", string); |
d7ee9e9b | 4769 | /* Script was not found on search path. */ |
4770 | return; | |
4771 | } | |
4772 | store_arg ("--script", false, false); | |
4773 | string = full_script_path; | |
4774 | } | |
558cc3be | 4775 | store_arg (string, delete_this_arg, this_is_output_file); |
4776 | if (this_is_output_file) | |
4777 | outfiles[input_file_number] = string; | |
4778 | arg_going = 0; | |
4779 | } | |
4780 | } | |
4781 | ||
0bfd146e | 4782 | |
4783 | /* Parse the WRAPPER string which is a comma separated list of the command line | |
4784 | and insert them into the beginning of argbuf. */ | |
4785 | ||
4786 | static void | |
4787 | insert_wrapper (const char *wrapper) | |
4788 | { | |
4789 | int n = 0; | |
4790 | int i; | |
4791 | char *buf = xstrdup (wrapper); | |
4792 | char *p = buf; | |
f1f41a6c | 4793 | unsigned int old_length = argbuf.length (); |
0bfd146e | 4794 | |
4795 | do | |
4796 | { | |
4797 | n++; | |
4798 | while (*p == ',') | |
4799 | p++; | |
4800 | } | |
4801 | while ((p = strchr (p, ',')) != NULL); | |
4802 | ||
f1f41a6c | 4803 | argbuf.safe_grow (old_length + n); |
4804 | memmove (argbuf.address () + n, | |
4805 | argbuf.address (), | |
9d9edc85 | 4806 | old_length * sizeof (const_char_p)); |
0bfd146e | 4807 | |
4808 | i = 0; | |
4809 | p = buf; | |
4810 | do | |
4811 | { | |
4812 | while (*p == ',') | |
4813 | { | |
4814 | *p = 0; | |
4815 | p++; | |
4816 | } | |
f1f41a6c | 4817 | argbuf[i] = p; |
9d9edc85 | 4818 | i++; |
0bfd146e | 4819 | } |
4820 | while ((p = strchr (p, ',')) != NULL); | |
4821 | gcc_assert (i == n); | |
0bfd146e | 4822 | } |
4823 | ||
d7a9644e | 4824 | /* Process the spec SPEC and run the commands specified therein. |
4825 | Returns 0 if the spec is successfully processed; -1 if failed. */ | |
4826 | ||
f9b7c0b9 | 4827 | int |
952f0048 | 4828 | do_spec (const char *spec) |
d7a9644e | 4829 | { |
4830 | int value; | |
4831 | ||
4ae4e5e8 | 4832 | value = do_spec_2 (spec); |
d7a9644e | 4833 | |
4834 | /* Force out any unfinished command. | |
4835 | If -pipe, this forces out the last command if it ended in `|'. */ | |
4836 | if (value == 0) | |
4837 | { | |
f1f41a6c | 4838 | if (argbuf.length () > 0 |
4839 | && !strcmp (argbuf.last (), "|")) | |
4840 | argbuf.pop (); | |
d7a9644e | 4841 | |
32d661fc | 4842 | set_collect_gcc_options (); |
4843 | ||
f1f41a6c | 4844 | if (argbuf.length () > 0) |
d7a9644e | 4845 | value = execute (); |
4846 | } | |
4847 | ||
4848 | return value; | |
4849 | } | |
4850 | ||
4ae4e5e8 | 4851 | static int |
952f0048 | 4852 | do_spec_2 (const char *spec) |
4ae4e5e8 | 4853 | { |
5842765d | 4854 | int result; |
4855 | ||
4ae4e5e8 | 4856 | clear_args (); |
4857 | arg_going = 0; | |
4858 | delete_this_arg = 0; | |
4859 | this_is_output_file = 0; | |
4860 | this_is_library_file = 0; | |
d7ee9e9b | 4861 | this_is_linker_script = 0; |
4ae4e5e8 | 4862 | input_from_pipe = 0; |
4863 | suffix_subst = NULL; | |
4864 | ||
5842765d | 4865 | result = do_spec_1 (spec, 0, NULL); |
4866 | ||
558cc3be | 4867 | end_going_arg (); |
5842765d | 4868 | |
4869 | return result; | |
4ae4e5e8 | 4870 | } |
4871 | ||
73023f49 | 4872 | |
7dd97ab6 | 4873 | /* Process the given spec string and add any new options to the end |
4874 | of the switches/n_switches array. */ | |
4875 | ||
4876 | static void | |
952f0048 | 4877 | do_option_spec (const char *name, const char *spec) |
7dd97ab6 | 4878 | { |
4879 | unsigned int i, value_count, value_len; | |
4880 | const char *p, *q, *value; | |
4881 | char *tmp_spec, *tmp_spec_p; | |
4882 | ||
4883 | if (configure_default_options[0].name == NULL) | |
4884 | return; | |
4885 | ||
4886 | for (i = 0; i < ARRAY_SIZE (configure_default_options); i++) | |
4887 | if (strcmp (configure_default_options[i].name, name) == 0) | |
4888 | break; | |
4889 | if (i == ARRAY_SIZE (configure_default_options)) | |
4890 | return; | |
4891 | ||
4892 | value = configure_default_options[i].value; | |
4893 | value_len = strlen (value); | |
4894 | ||
4895 | /* Compute the size of the final spec. */ | |
4896 | value_count = 0; | |
4897 | p = spec; | |
4898 | while ((p = strstr (p, "%(VALUE)")) != NULL) | |
4899 | { | |
4900 | p ++; | |
4901 | value_count ++; | |
4902 | } | |
4903 | ||
4904 | /* Replace each %(VALUE) by the specified value. */ | |
25a1c410 | 4905 | tmp_spec = (char *) alloca (strlen (spec) + 1 |
7dd97ab6 | 4906 | + value_count * (value_len - strlen ("%(VALUE)"))); |
4907 | tmp_spec_p = tmp_spec; | |
4908 | q = spec; | |
4909 | while ((p = strstr (q, "%(VALUE)")) != NULL) | |
4910 | { | |
4911 | memcpy (tmp_spec_p, q, p - q); | |
4912 | tmp_spec_p = tmp_spec_p + (p - q); | |
4913 | memcpy (tmp_spec_p, value, value_len); | |
4914 | tmp_spec_p += value_len; | |
4915 | q = p + strlen ("%(VALUE)"); | |
4916 | } | |
4917 | strcpy (tmp_spec_p, q); | |
4918 | ||
4919 | do_self_spec (tmp_spec); | |
4920 | } | |
4921 | ||
73023f49 | 4922 | /* Process the given spec string and add any new options to the end |
4923 | of the switches/n_switches array. */ | |
4924 | ||
4925 | static void | |
952f0048 | 4926 | do_self_spec (const char *spec) |
73023f49 | 4927 | { |
87a6a1b5 | 4928 | int i; |
4929 | ||
73023f49 | 4930 | do_spec_2 (spec); |
4931 | do_spec_1 (" ", 0, NULL); | |
4932 | ||
87a6a1b5 | 4933 | /* Mark %<S switches processed by do_self_spec to be ignored permanently. |
4934 | do_self_specs adds the replacements to switches array, so it shouldn't | |
4935 | be processed afterwards. */ | |
4936 | for (i = 0; i < n_switches; i++) | |
4937 | if ((switches[i].live_cond & SWITCH_IGNORE)) | |
4938 | switches[i].live_cond |= SWITCH_IGNORE_PERMANENTLY; | |
4939 | ||
f1f41a6c | 4940 | if (argbuf.length () > 0) |
73023f49 | 4941 | { |
4ff887c5 | 4942 | const char **argbuf_copy; |
4943 | struct cl_decoded_option *decoded_options; | |
4944 | struct cl_option_handlers handlers; | |
4945 | unsigned int decoded_options_count; | |
4946 | unsigned int j; | |
73023f49 | 4947 | |
4ff887c5 | 4948 | /* Create a copy of argbuf with a dummy argv[0] entry for |
4949 | decode_cmdline_options_to_array. */ | |
9d9edc85 | 4950 | argbuf_copy = XNEWVEC (const char *, |
f1f41a6c | 4951 | argbuf.length () + 1); |
4ff887c5 | 4952 | argbuf_copy[0] = ""; |
f1f41a6c | 4953 | memcpy (argbuf_copy + 1, argbuf.address (), |
4954 | argbuf.length () * sizeof (const char *)); | |
73023f49 | 4955 | |
f1f41a6c | 4956 | decode_cmdline_options_to_array (argbuf.length () + 1, |
9d9edc85 | 4957 | argbuf_copy, |
4ff887c5 | 4958 | CL_DRIVER, &decoded_options, |
4959 | &decoded_options_count); | |
ce0fdb91 | 4960 | free (argbuf_copy); |
71278019 | 4961 | |
4ff887c5 | 4962 | set_option_handlers (&handlers); |
71278019 | 4963 | |
4ff887c5 | 4964 | for (j = 1; j < decoded_options_count; j++) |
4965 | { | |
4966 | switch (decoded_options[j].opt_index) | |
71278019 | 4967 | { |
4ff887c5 | 4968 | case OPT_SPECIAL_input_file: |
4969 | /* Specs should only generate options, not input | |
4970 | files. */ | |
4971 | if (strcmp (decoded_options[j].arg, "-") != 0) | |
c05be867 | 4972 | fatal_error (input_location, |
4973 | "switch %qs does not start with %<-%>", | |
4ff887c5 | 4974 | decoded_options[j].arg); |
4975 | else | |
c05be867 | 4976 | fatal_error (input_location, |
4977 | "spec-generated switch is just %<-%>"); | |
4ff887c5 | 4978 | break; |
71278019 | 4979 | |
4ff887c5 | 4980 | case OPT_fcompare_debug_second: |
4981 | case OPT_fcompare_debug: | |
4982 | case OPT_fcompare_debug_: | |
4983 | case OPT_o: | |
4984 | /* Avoid duplicate processing of some options from | |
4985 | compare-debug specs; just save them here. */ | |
4986 | save_switch (decoded_options[j].canonical_option[0], | |
4987 | (decoded_options[j].canonical_option_num_elements | |
4988 | - 1), | |
556cfe53 | 4989 | &decoded_options[j].canonical_option[1], false, true); |
4ff887c5 | 4990 | break; |
4991 | ||
4992 | default: | |
4993 | read_cmdline_option (&global_options, &global_options_set, | |
3c6c0e40 | 4994 | decoded_options + j, UNKNOWN_LOCATION, |
4995 | CL_DRIVER, &handlers, global_dc); | |
4ff887c5 | 4996 | break; |
71278019 | 4997 | } |
73023f49 | 4998 | } |
71278019 | 4999 | |
cbbb2345 | 5000 | free (decoded_options); |
5001 | ||
4ff887c5 | 5002 | alloc_switch (); |
71278019 | 5003 | switches[n_switches].part1 = 0; |
73023f49 | 5004 | } |
5005 | } | |
5006 | ||
067277c3 | 5007 | /* Callback for processing %D and %I specs. */ |
5008 | ||
5009 | struct spec_path_info { | |
5010 | const char *option; | |
5011 | const char *append; | |
5012 | size_t append_len; | |
5013 | bool omit_relative; | |
5014 | bool separate_options; | |
5015 | }; | |
5016 | ||
5017 | static void * | |
5018 | spec_path (char *path, void *data) | |
42bbc7e6 | 5019 | { |
25a1c410 | 5020 | struct spec_path_info *info = (struct spec_path_info *) data; |
067277c3 | 5021 | size_t len = 0; |
5022 | char save = 0; | |
42bbc7e6 | 5023 | |
067277c3 | 5024 | if (info->omit_relative && !IS_ABSOLUTE_PATH (path)) |
5025 | return NULL; | |
5026 | ||
5027 | if (info->append_len != 0) | |
42bbc7e6 | 5028 | { |
067277c3 | 5029 | len = strlen (path); |
5030 | memcpy (path + len, info->append, info->append_len + 1); | |
42bbc7e6 | 5031 | } |
5032 | ||
067277c3 | 5033 | if (!is_directory (path, true)) |
5034 | return NULL; | |
42bbc7e6 | 5035 | |
067277c3 | 5036 | do_spec_1 (info->option, 1, NULL); |
5037 | if (info->separate_options) | |
5038 | do_spec_1 (" ", 0, NULL); | |
5039 | ||
5040 | if (info->append_len == 0) | |
42bbc7e6 | 5041 | { |
067277c3 | 5042 | len = strlen (path); |
5043 | save = path[len - 1]; | |
5044 | if (IS_DIR_SEPARATOR (path[len - 1])) | |
5045 | path[len - 1] = '\0'; | |
42bbc7e6 | 5046 | } |
067277c3 | 5047 | |
5048 | do_spec_1 (path, 1, NULL); | |
5049 | do_spec_1 (" ", 0, NULL); | |
5050 | ||
5051 | /* Must not damage the original path. */ | |
5052 | if (info->append_len == 0) | |
5053 | path[len - 1] = save; | |
5054 | ||
5055 | return NULL; | |
42bbc7e6 | 5056 | } |
5057 | ||
46782931 | 5058 | /* Create a temporary FILE with the contents of ARGV. Add @FILE to the |
5059 | argument list. */ | |
5060 | ||
5061 | static void | |
5062 | create_at_file (char **argv) | |
5063 | { | |
5064 | char *temp_file = make_temp_file (""); | |
5065 | char *at_argument = concat ("@", temp_file, NULL); | |
5066 | FILE *f = fopen (temp_file, "w"); | |
5067 | int status; | |
5068 | ||
5069 | if (f == NULL) | |
c05be867 | 5070 | fatal_error (input_location, "could not open temporary response file %s", |
a922df2e | 5071 | temp_file); |
46782931 | 5072 | |
5073 | status = writeargv (argv, f); | |
5074 | ||
5075 | if (status) | |
c05be867 | 5076 | fatal_error (input_location, |
5077 | "could not write to temporary response file %s", | |
a922df2e | 5078 | temp_file); |
46782931 | 5079 | |
5080 | status = fclose (f); | |
5081 | ||
5082 | if (EOF == status) | |
c05be867 | 5083 | fatal_error (input_location, "could not close temporary response file %s", |
a922df2e | 5084 | temp_file); |
46782931 | 5085 | |
5086 | store_arg (at_argument, 0, 0); | |
5087 | ||
5088 | record_temp_file (temp_file, !save_temps_flag, !save_temps_flag); | |
5089 | } | |
5090 | ||
5091 | /* True if we should compile INFILE. */ | |
5092 | ||
5093 | static bool | |
5094 | compile_input_file_p (struct infile *infile) | |
5095 | { | |
5096 | if ((!infile->language) || (infile->language[0] != '*')) | |
5097 | if (infile->incompiler == input_file_compiler) | |
5098 | return true; | |
5099 | return false; | |
5100 | } | |
5101 | ||
74c33122 | 5102 | /* Process each member of VEC as a spec. */ |
5103 | ||
5104 | static void | |
f1f41a6c | 5105 | do_specs_vec (vec<char_p> vec) |
74c33122 | 5106 | { |
5107 | unsigned ix; | |
5108 | char *opt; | |
5109 | ||
f1f41a6c | 5110 | FOR_EACH_VEC_ELT (vec, ix, opt) |
74c33122 | 5111 | { |
5112 | do_spec_1 (opt, 1, NULL); | |
5113 | /* Make each accumulated option a separate argument. */ | |
5114 | do_spec_1 (" ", 0, NULL); | |
5115 | } | |
5116 | } | |
5117 | ||
d7a9644e | 5118 | /* Process the sub-spec SPEC as a portion of a larger spec. |
5119 | This is like processing a whole spec except that we do | |
5120 | not initialize at the beginning and we do not supply a | |
5121 | newline by default at the end. | |
5122 | INSWITCH nonzero means don't process %-sequences in SPEC; | |
5123 | in this case, % is treated as an ordinary character. | |
5124 | This is used while substituting switches. | |
5125 | INSWITCH nonzero also causes SPC not to terminate an argument. | |
5126 | ||
5127 | Value is zero unless a line was finished | |
5128 | and the command on that line reported an error. */ | |
5129 | ||
5130 | static int | |
952f0048 | 5131 | do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part) |
d7a9644e | 5132 | { |
19cb6b50 | 5133 | const char *p = spec; |
5134 | int c; | |
d7a9644e | 5135 | int i; |
fd8c18f0 | 5136 | int value; |
d7a9644e | 5137 | |
fde5bd5c | 5138 | /* If it's an empty string argument to a switch, keep it as is. */ |
5139 | if (inswitch && !*p) | |
5140 | arg_going = 1; | |
5141 | ||
00e598e3 | 5142 | while ((c = *p++)) |
d7a9644e | 5143 | /* If substituting a switch, treat all chars like letters. |
5144 | Otherwise, NL, SPC, TAB and % are special. */ | |
5145 | switch (inswitch ? 'a' : c) | |
5146 | { | |
5147 | case '\n': | |
558cc3be | 5148 | end_going_arg (); |
d7a9644e | 5149 | |
f1f41a6c | 5150 | if (argbuf.length () > 0 |
5151 | && !strcmp (argbuf.last (), "|")) | |
d7a9644e | 5152 | { |
d7a9644e | 5153 | /* A `|' before the newline means use a pipe here, |
5154 | but only if -pipe was specified. | |
5155 | Otherwise, execute now and don't pass the `|' as an arg. */ | |
805e22b2 | 5156 | if (use_pipes) |
d7a9644e | 5157 | { |
f90016ef | 5158 | input_from_pipe = 1; |
d7a9644e | 5159 | break; |
5160 | } | |
5161 | else | |
f1f41a6c | 5162 | argbuf.pop (); |
d7a9644e | 5163 | } |
5164 | ||
32d661fc | 5165 | set_collect_gcc_options (); |
5166 | ||
f1f41a6c | 5167 | if (argbuf.length () > 0) |
d7a9644e | 5168 | { |
fd8c18f0 | 5169 | value = execute (); |
d7a9644e | 5170 | if (value) |
5171 | return value; | |
5172 | } | |
5173 | /* Reinitialize for a new command, and for a new argument. */ | |
5174 | clear_args (); | |
5175 | arg_going = 0; | |
5176 | delete_this_arg = 0; | |
5177 | this_is_output_file = 0; | |
5178 | this_is_library_file = 0; | |
d7ee9e9b | 5179 | this_is_linker_script = 0; |
f90016ef | 5180 | input_from_pipe = 0; |
d7a9644e | 5181 | break; |
5182 | ||
5183 | case '|': | |
558cc3be | 5184 | end_going_arg (); |
d7a9644e | 5185 | |
5186 | /* Use pipe */ | |
5187 | obstack_1grow (&obstack, c); | |
5188 | arg_going = 1; | |
5189 | break; | |
5190 | ||
5191 | case '\t': | |
5192 | case ' ': | |
558cc3be | 5193 | end_going_arg (); |
5194 | ||
d7a9644e | 5195 | /* Reinitialize for a new argument. */ |
d7a9644e | 5196 | delete_this_arg = 0; |
5197 | this_is_output_file = 0; | |
5198 | this_is_library_file = 0; | |
d7ee9e9b | 5199 | this_is_linker_script = 0; |
d7a9644e | 5200 | break; |
5201 | ||
5202 | case '%': | |
5203 | switch (c = *p++) | |
5204 | { | |
5205 | case 0: | |
c05be867 | 5206 | fatal_error (input_location, "spec %qs invalid", spec); |
d7a9644e | 5207 | |
5208 | case 'b': | |
cc92bc82 | 5209 | if (save_temps_length) |
5210 | obstack_grow (&obstack, save_temps_prefix, save_temps_length); | |
5211 | else | |
5212 | obstack_grow (&obstack, input_basename, basename_length); | |
71278019 | 5213 | if (compare_debug < 0) |
5214 | obstack_grow (&obstack, ".gk", 3); | |
d7a9644e | 5215 | arg_going = 1; |
5216 | break; | |
5217 | ||
1cf79a1a | 5218 | case 'B': |
cc92bc82 | 5219 | if (save_temps_length) |
5220 | obstack_grow (&obstack, save_temps_prefix, save_temps_length); | |
5221 | else | |
5222 | obstack_grow (&obstack, input_basename, suffixed_basename_length); | |
71278019 | 5223 | if (compare_debug < 0) |
5224 | obstack_grow (&obstack, ".gk", 3); | |
1cf79a1a | 5225 | arg_going = 1; |
5226 | break; | |
5227 | ||
d7a9644e | 5228 | case 'd': |
5229 | delete_this_arg = 2; | |
5230 | break; | |
5231 | ||
5232 | /* Dump out the directories specified with LIBRARY_PATH, | |
a45072dd | 5233 | followed by the absolute directories |
5234 | that we search for startfiles. */ | |
d7a9644e | 5235 | case 'D': |
466996dd | 5236 | { |
067277c3 | 5237 | struct spec_path_info info; |
9942f943 | 5238 | |
067277c3 | 5239 | info.option = "-L"; |
5240 | info.append_len = 0; | |
42bbc7e6 | 5241 | #ifdef RELATIVE_PREFIX_NOT_LINKDIR |
067277c3 | 5242 | /* Used on systems which record the specified -L dirs |
5243 | and use them to search for dynamic linking. | |
5244 | Relative directories always come from -B, | |
5245 | and it is better not to use them for searching | |
5246 | at run time. In particular, stage1 loses. */ | |
5247 | info.omit_relative = true; | |
42bbc7e6 | 5248 | #else |
067277c3 | 5249 | info.omit_relative = false; |
a45072dd | 5250 | #endif |
067277c3 | 5251 | info.separate_options = false; |
5252 | ||
5253 | for_each_path (&startfile_prefixes, true, 0, spec_path, &info); | |
466996dd | 5254 | } |
d7a9644e | 5255 | break; |
5256 | ||
5257 | case 'e': | |
be2828ce | 5258 | /* %efoo means report an error with `foo' as error message |
d7a9644e | 5259 | and don't execute any more commands for this file. */ |
5260 | { | |
e40d43cc | 5261 | const char *q = p; |
d7a9644e | 5262 | char *buf; |
026f2c7a | 5263 | while (*p != 0 && *p != '\n') |
5264 | p++; | |
25a1c410 | 5265 | buf = (char *) alloca (p - q + 1); |
d7a9644e | 5266 | strncpy (buf, q, p - q); |
5267 | buf[p - q] = 0; | |
5a3530cb | 5268 | error ("%s", _(buf)); |
d7a9644e | 5269 | return -1; |
5270 | } | |
5271 | break; | |
90286764 | 5272 | case 'n': |
edc2a478 | 5273 | /* %nfoo means report a notice with `foo' on stderr. */ |
90286764 | 5274 | { |
5275 | const char *q = p; | |
5276 | char *buf; | |
5277 | while (*p != 0 && *p != '\n') | |
5278 | p++; | |
25a1c410 | 5279 | buf = (char *) alloca (p - q + 1); |
90286764 | 5280 | strncpy (buf, q, p - q); |
5281 | buf[p - q] = 0; | |
a922df2e | 5282 | inform (0, "%s", _(buf)); |
90286764 | 5283 | if (*p) |
5284 | p++; | |
5285 | } | |
5286 | break; | |
d7a9644e | 5287 | |
026f2c7a | 5288 | case 'j': |
5289 | { | |
5290 | struct stat st; | |
5291 | ||
805e22b2 | 5292 | /* If save_temps_flag is off, and the HOST_BIT_BUCKET is |
5293 | defined, and it is not a directory, and it is | |
5294 | writable, use it. Otherwise, treat this like any | |
5295 | other temporary file. */ | |
026f2c7a | 5296 | |
5297 | if ((!save_temps_flag) | |
5298 | && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode)) | |
5299 | && (access (HOST_BIT_BUCKET, W_OK) == 0)) | |
5300 | { | |
5301 | obstack_grow (&obstack, HOST_BIT_BUCKET, | |
5302 | strlen (HOST_BIT_BUCKET)); | |
5303 | delete_this_arg = 0; | |
5304 | arg_going = 1; | |
5305 | break; | |
5306 | } | |
5307 | } | |
805e22b2 | 5308 | goto create_temp_file; |
5309 | case '|': | |
5310 | if (use_pipes) | |
5311 | { | |
5312 | obstack_1grow (&obstack, '-'); | |
5313 | delete_this_arg = 0; | |
5314 | arg_going = 1; | |
5315 | ||
5316 | /* consume suffix */ | |
b78b6a05 | 5317 | while (*p == '.' || ISALNUM ((unsigned char) *p)) |
805e22b2 | 5318 | p++; |
5319 | if (p[0] == '%' && p[1] == 'O') | |
5320 | p += 2; | |
952f0048 | 5321 | |
805e22b2 | 5322 | break; |
5323 | } | |
5324 | goto create_temp_file; | |
5325 | case 'm': | |
5326 | if (use_pipes) | |
5327 | { | |
5328 | /* consume suffix */ | |
b78b6a05 | 5329 | while (*p == '.' || ISALNUM ((unsigned char) *p)) |
805e22b2 | 5330 | p++; |
5331 | if (p[0] == '%' && p[1] == 'O') | |
5332 | p += 2; | |
952f0048 | 5333 | |
805e22b2 | 5334 | break; |
5335 | } | |
5336 | goto create_temp_file; | |
d7a9644e | 5337 | case 'g': |
5ee0d826 | 5338 | case 'u': |
e70085f9 | 5339 | case 'U': |
805e22b2 | 5340 | create_temp_file: |
d7a9644e | 5341 | { |
4576c73f | 5342 | struct temp_name *t; |
c78c5ee7 | 5343 | int suffix_length; |
e40d43cc | 5344 | const char *suffix = p; |
2c2aaf10 | 5345 | char *saved_suffix = NULL; |
c78c5ee7 | 5346 | |
b78b6a05 | 5347 | while (*p == '.' || ISALNUM ((unsigned char) *p)) |
2c2aaf10 | 5348 | p++; |
5349 | suffix_length = p - suffix; | |
c78c5ee7 | 5350 | if (p[0] == '%' && p[1] == 'O') |
5351 | { | |
97c9de01 | 5352 | p += 2; |
c78c5ee7 | 5353 | /* We don't support extra suffix characters after %O. */ |
b78b6a05 | 5354 | if (*p == '.' || ISALNUM ((unsigned char) *p)) |
c05be867 | 5355 | fatal_error (input_location, |
5356 | "spec %qs has invalid %<%%0%c%>", spec, *p); | |
2c2aaf10 | 5357 | if (suffix_length == 0) |
10f57222 | 5358 | suffix = TARGET_OBJECT_SUFFIX; |
2c2aaf10 | 5359 | else |
5360 | { | |
5361 | saved_suffix | |
4c36ffe6 | 5362 | = XNEWVEC (char, suffix_length |
fcca7644 | 5363 | + strlen (TARGET_OBJECT_SUFFIX) + 1); |
2c2aaf10 | 5364 | strncpy (saved_suffix, suffix, suffix_length); |
5365 | strcpy (saved_suffix + suffix_length, | |
10f57222 | 5366 | TARGET_OBJECT_SUFFIX); |
2c2aaf10 | 5367 | } |
10f57222 | 5368 | suffix_length += strlen (TARGET_OBJECT_SUFFIX); |
c78c5ee7 | 5369 | } |
3cfec666 | 5370 | |
71278019 | 5371 | if (compare_debug < 0) |
5372 | { | |
5373 | suffix = concat (".gk", suffix, NULL); | |
5374 | suffix_length += 3; | |
5375 | } | |
5376 | ||
cc92bc82 | 5377 | /* If -save-temps=obj and -o were specified, use that for the |
5378 | temp file. */ | |
5379 | if (save_temps_length) | |
5380 | { | |
5381 | char *tmp; | |
5382 | temp_filename_length | |
5383 | = save_temps_length + suffix_length + 1; | |
5384 | tmp = (char *) alloca (temp_filename_length); | |
5385 | memcpy (tmp, save_temps_prefix, save_temps_length); | |
5386 | memcpy (tmp + save_temps_length, suffix, suffix_length); | |
5387 | tmp[save_temps_length + suffix_length] = '\0'; | |
ce0fdb91 | 5388 | temp_filename = save_string (tmp, save_temps_length |
5389 | + suffix_length); | |
cc92bc82 | 5390 | obstack_grow (&obstack, temp_filename, |
5391 | temp_filename_length); | |
5392 | arg_going = 1; | |
5393 | delete_this_arg = 0; | |
5394 | break; | |
5395 | } | |
5396 | ||
460b8bb3 | 5397 | /* If the gcc_input_filename has the same suffix specified |
74e4079a | 5398 | for the %g, %u, or %U, and -save-temps is specified, |
5399 | we could end up using that file as an intermediate | |
5400 | thus clobbering the user's source file (.e.g., | |
5401 | gcc -save-temps foo.s would clobber foo.s with the | |
5402 | output of cpp0). So check for this condition and | |
5403 | generate a temp file as the intermediate. */ | |
3cfec666 | 5404 | |
74e4079a | 5405 | if (save_temps_flag) |
5406 | { | |
5d1b319b | 5407 | char *tmp; |
cc92bc82 | 5408 | temp_filename_length = basename_length + suffix_length + 1; |
5409 | tmp = (char *) alloca (temp_filename_length); | |
5410 | memcpy (tmp, input_basename, basename_length); | |
5411 | memcpy (tmp + basename_length, suffix, suffix_length); | |
5412 | tmp[basename_length + suffix_length] = '\0'; | |
5d1b319b | 5413 | temp_filename = tmp; |
cc92bc82 | 5414 | |
82715bcd | 5415 | if (filename_cmp (temp_filename, gcc_input_filename) != 0) |
74e4079a | 5416 | { |
030ec15c | 5417 | #ifndef HOST_LACKS_INODE_NUMBERS |
952f0048 | 5418 | struct stat st_temp; |
3cfec666 | 5419 | |
952f0048 | 5420 | /* Note, set_input() resets input_stat_set to 0. */ |
5421 | if (input_stat_set == 0) | |
5422 | { | |
460b8bb3 | 5423 | input_stat_set = stat (gcc_input_filename, |
5424 | &input_stat); | |
952f0048 | 5425 | if (input_stat_set >= 0) |
5426 | input_stat_set = 1; | |
5427 | } | |
3cfec666 | 5428 | |
460b8bb3 | 5429 | /* If we have the stat for the gcc_input_filename |
952f0048 | 5430 | and we can do the stat for the temp_filename |
5431 | then the they could still refer to the same | |
5432 | file if st_dev/st_ino's are the same. */ | |
74e4079a | 5433 | if (input_stat_set != 1 |
5434 | || stat (temp_filename, &st_temp) < 0 | |
5435 | || input_stat.st_dev != st_temp.st_dev | |
5436 | || input_stat.st_ino != st_temp.st_ino) | |
030ec15c | 5437 | #else |
5438 | /* Just compare canonical pathnames. */ | |
460b8bb3 | 5439 | char* input_realname = lrealpath (gcc_input_filename); |
030ec15c | 5440 | char* temp_realname = lrealpath (temp_filename); |
82715bcd | 5441 | bool files_differ = filename_cmp (input_realname, temp_realname); |
030ec15c | 5442 | free (input_realname); |
5443 | free (temp_realname); | |
2f2c6aee | 5444 | if (files_differ) |
030ec15c | 5445 | #endif |
3cfec666 | 5446 | { |
b3532bc1 | 5447 | temp_filename |
5448 | = save_string (temp_filename, | |
5449 | temp_filename_length - 1); | |
74e4079a | 5450 | obstack_grow (&obstack, temp_filename, |
952f0048 | 5451 | temp_filename_length); |
74e4079a | 5452 | arg_going = 1; |
03b358c6 | 5453 | delete_this_arg = 0; |
74e4079a | 5454 | break; |
5455 | } | |
5456 | } | |
5457 | } | |
4576c73f | 5458 | |
5459 | /* See if we already have an association of %g/%u/%U and | |
5460 | suffix. */ | |
5461 | for (t = temp_names; t; t = t->next) | |
c78c5ee7 | 5462 | if (t->length == suffix_length |
5463 | && strncmp (t->suffix, suffix, suffix_length) == 0 | |
5f6af493 | 5464 | && t->unique == (c == 'u' || c == 'U' || c == 'j')) |
4576c73f | 5465 | break; |
5466 | ||
d362e897 | 5467 | /* Make a new association if needed. %u and %j |
5468 | require one. */ | |
655a58fa | 5469 | if (t == 0 || c == 'u' || c == 'j') |
4576c73f | 5470 | { |
5471 | if (t == 0) | |
5472 | { | |
25a1c410 | 5473 | t = XNEW (struct temp_name); |
4576c73f | 5474 | t->next = temp_names; |
5475 | temp_names = t; | |
5476 | } | |
c78c5ee7 | 5477 | t->length = suffix_length; |
d362e897 | 5478 | if (saved_suffix) |
5479 | { | |
5480 | t->suffix = saved_suffix; | |
5481 | saved_suffix = NULL; | |
5482 | } | |
5483 | else | |
5484 | t->suffix = save_string (suffix, suffix_length); | |
5f6af493 | 5485 | t->unique = (c == 'u' || c == 'U' || c == 'j'); |
c78c5ee7 | 5486 | temp_filename = make_temp_file (t->suffix); |
3441e5dd | 5487 | temp_filename_length = strlen (temp_filename); |
4576c73f | 5488 | t->filename = temp_filename; |
5489 | t->filename_length = temp_filename_length; | |
5490 | } | |
5491 | ||
dd045aee | 5492 | free (saved_suffix); |
2c2aaf10 | 5493 | |
4576c73f | 5494 | obstack_grow (&obstack, t->filename, t->filename_length); |
e2a5805f | 5495 | delete_this_arg = 1; |
d7a9644e | 5496 | } |
5497 | arg_going = 1; | |
5498 | break; | |
5499 | ||
5500 | case 'i': | |
40109983 | 5501 | if (combine_inputs) |
5502 | { | |
46782931 | 5503 | if (at_file_supplied) |
5504 | { | |
5505 | /* We are going to expand `%i' to `@FILE', where FILE | |
5506 | is a newly-created temporary filename. The filenames | |
5507 | that would usually be expanded in place of %o will be | |
5508 | written to the temporary file. */ | |
5509 | char **argv; | |
5510 | int n_files = 0; | |
5511 | int j; | |
5512 | ||
5513 | for (i = 0; i < n_infiles; i++) | |
5514 | if (compile_input_file_p (&infiles[i])) | |
5515 | n_files++; | |
5516 | ||
5517 | argv = (char **) alloca (sizeof (char *) * (n_files + 1)); | |
5518 | ||
5519 | /* Copy the strings over. */ | |
5520 | for (i = 0, j = 0; i < n_infiles; i++) | |
5521 | if (compile_input_file_p (&infiles[i])) | |
5522 | { | |
5523 | argv[j] = CONST_CAST (char *, infiles[i].name); | |
5524 | infiles[i].compiled = true; | |
5525 | j++; | |
5526 | } | |
5527 | argv[j] = NULL; | |
5528 | ||
5529 | create_at_file (argv); | |
5530 | } | |
5531 | else | |
5532 | for (i = 0; (int) i < n_infiles; i++) | |
5533 | if (compile_input_file_p (&infiles[i])) | |
dc1dd09b | 5534 | { |
5535 | store_arg (infiles[i].name, 0, 0); | |
5536 | infiles[i].compiled = true; | |
5537 | } | |
40109983 | 5538 | } |
5539 | else | |
5540 | { | |
460b8bb3 | 5541 | obstack_grow (&obstack, gcc_input_filename, |
5542 | input_filename_length); | |
40109983 | 5543 | arg_going = 1; |
5544 | } | |
d7a9644e | 5545 | break; |
5546 | ||
bfef3e2f | 5547 | case 'I': |
524c2193 | 5548 | { |
067277c3 | 5549 | struct spec_path_info info; |
524c2193 | 5550 | |
72779020 | 5551 | if (multilib_dir) |
5552 | { | |
5553 | do_spec_1 ("-imultilib", 1, NULL); | |
5554 | /* Make this a separate argument. */ | |
5555 | do_spec_1 (" ", 0, NULL); | |
5556 | do_spec_1 (multilib_dir, 1, NULL); | |
5557 | do_spec_1 (" ", 0, NULL); | |
5558 | } | |
5559 | ||
77adc39e | 5560 | if (multiarch_dir) |
5561 | { | |
5562 | do_spec_1 ("-imultiarch", 1, NULL); | |
5563 | /* Make this a separate argument. */ | |
5564 | do_spec_1 (" ", 0, NULL); | |
5565 | do_spec_1 (multiarch_dir, 1, NULL); | |
5566 | do_spec_1 (" ", 0, NULL); | |
5567 | } | |
5568 | ||
524c2193 | 5569 | if (gcc_exec_prefix) |
5570 | { | |
d946ea19 | 5571 | do_spec_1 ("-iprefix", 1, NULL); |
524c2193 | 5572 | /* Make this a separate argument. */ |
d946ea19 | 5573 | do_spec_1 (" ", 0, NULL); |
5574 | do_spec_1 (gcc_exec_prefix, 1, NULL); | |
5575 | do_spec_1 (" ", 0, NULL); | |
524c2193 | 5576 | } |
5577 | ||
4ea70922 | 5578 | if (target_system_root_changed || |
5579 | (target_system_root && target_sysroot_hdrs_suffix)) | |
17acc97a | 5580 | { |
5581 | do_spec_1 ("-isysroot", 1, NULL); | |
5582 | /* Make this a separate argument. */ | |
5583 | do_spec_1 (" ", 0, NULL); | |
5584 | do_spec_1 (target_system_root, 1, NULL); | |
4ea70922 | 5585 | if (target_sysroot_hdrs_suffix) |
5586 | do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL); | |
17acc97a | 5587 | do_spec_1 (" ", 0, NULL); |
5588 | } | |
5589 | ||
067277c3 | 5590 | info.option = "-isystem"; |
5591 | info.append = "include"; | |
5592 | info.append_len = strlen (info.append); | |
5593 | info.omit_relative = false; | |
5594 | info.separate_options = true; | |
5595 | ||
5596 | for_each_path (&include_prefixes, false, info.append_len, | |
5597 | spec_path, &info); | |
d3036f42 | 5598 | |
5599 | info.append = "include-fixed"; | |
6ea4242f | 5600 | if (*sysroot_hdrs_suffix_spec) |
5601 | info.append = concat (info.append, dir_separator_str, | |
5602 | multilib_dir, NULL); | |
d3036f42 | 5603 | info.append_len = strlen (info.append); |
5604 | for_each_path (&include_prefixes, false, info.append_len, | |
5605 | spec_path, &info); | |
524c2193 | 5606 | } |
bfef3e2f | 5607 | break; |
5608 | ||
d7a9644e | 5609 | case 'o': |
2b191381 | 5610 | { |
5611 | int max = n_infiles; | |
2b191381 | 5612 | max += lang_specific_extra_outfiles; |
cdf76fe2 | 5613 | |
c159e0b7 | 5614 | if (HAVE_GNU_LD && at_file_supplied) |
5615 | { | |
5616 | /* We are going to expand `%o' to `@FILE', where FILE | |
5617 | is a newly-created temporary filename. The filenames | |
5618 | that would usually be expanded in place of %o will be | |
5619 | written to the temporary file. */ | |
5620 | ||
c159e0b7 | 5621 | char **argv; |
46782931 | 5622 | int n_files, j; |
c159e0b7 | 5623 | |
5624 | /* Convert OUTFILES into a form suitable for writeargv. */ | |
5625 | ||
5626 | /* Determine how many are non-NULL. */ | |
5627 | for (n_files = 0, i = 0; i < max; i++) | |
5628 | n_files += outfiles[i] != NULL; | |
5629 | ||
25a1c410 | 5630 | argv = (char **) alloca (sizeof (char *) * (n_files + 1)); |
c159e0b7 | 5631 | |
5632 | /* Copy the strings over. */ | |
5633 | for (i = 0, j = 0; i < max; i++) | |
5634 | if (outfiles[i]) | |
5635 | { | |
e47a6f81 | 5636 | argv[j] = CONST_CAST (char *, outfiles[i]); |
c159e0b7 | 5637 | j++; |
5638 | } | |
5639 | argv[j] = NULL; | |
5640 | ||
46782931 | 5641 | create_at_file (argv); |
c159e0b7 | 5642 | } |
5643 | else | |
5644 | for (i = 0; i < max; i++) | |
5645 | if (outfiles[i]) | |
5646 | store_arg (outfiles[i], 0, 0); | |
2b191381 | 5647 | break; |
5648 | } | |
d7a9644e | 5649 | |
499a0933 | 5650 | case 'O': |
10f57222 | 5651 | obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX)); |
499a0933 | 5652 | arg_going = 1; |
5653 | break; | |
5654 | ||
d7a9644e | 5655 | case 's': |
5656 | this_is_library_file = 1; | |
5657 | break; | |
5658 | ||
d7ee9e9b | 5659 | case 'T': |
5660 | this_is_linker_script = 1; | |
5661 | break; | |
5662 | ||
573aba85 | 5663 | case 'V': |
5664 | outfiles[input_file_number] = NULL; | |
5665 | break; | |
5666 | ||
d7a9644e | 5667 | case 'w': |
5668 | this_is_output_file = 1; | |
5669 | break; | |
5670 | ||
5671 | case 'W': | |
5672 | { | |
f1f41a6c | 5673 | unsigned int cur_index = argbuf.length (); |
d7a9644e | 5674 | /* Handle the {...} following the %W. */ |
5675 | if (*p != '{') | |
c05be867 | 5676 | fatal_error (input_location, |
5677 | "spec %qs has invalid %<%%W%c%>", spec, *p); | |
d7a9644e | 5678 | p = handle_braces (p + 1); |
5679 | if (p == 0) | |
5680 | return -1; | |
558cc3be | 5681 | end_going_arg (); |
d7a9644e | 5682 | /* If any args were output, mark the last one for deletion |
5683 | on failure. */ | |
f1f41a6c | 5684 | if (argbuf.length () != cur_index) |
5685 | record_temp_file (argbuf.last (), 0, 1); | |
d7a9644e | 5686 | break; |
5687 | } | |
5688 | ||
5689 | /* %x{OPTION} records OPTION for %X to output. */ | |
5690 | case 'x': | |
5691 | { | |
e40d43cc | 5692 | const char *p1 = p; |
d7a9644e | 5693 | char *string; |
74c33122 | 5694 | char *opt; |
5695 | unsigned ix; | |
d7a9644e | 5696 | |
5697 | /* Skip past the option value and make a copy. */ | |
5698 | if (*p != '{') | |
c05be867 | 5699 | fatal_error (input_location, |
5700 | "spec %qs has invalid %<%%x%c%>", spec, *p); | |
d7a9644e | 5701 | while (*p++ != '}') |
5702 | ; | |
5703 | string = save_string (p1 + 1, p - p1 - 2); | |
5704 | ||
5705 | /* See if we already recorded this option. */ | |
f1f41a6c | 5706 | FOR_EACH_VEC_ELT (linker_options, ix, opt) |
74c33122 | 5707 | if (! strcmp (string, opt)) |
d7a9644e | 5708 | { |
5709 | free (string); | |
5710 | return 0; | |
5711 | } | |
5712 | ||
5713 | /* This option is new; add it. */ | |
8ace789a | 5714 | add_linker_option (string, strlen (string)); |
ce0fdb91 | 5715 | free (string); |
d7a9644e | 5716 | } |
5717 | break; | |
5718 | ||
fcdc45aa | 5719 | /* Dump out the options accumulated previously using %x. */ |
d7a9644e | 5720 | case 'X': |
74c33122 | 5721 | do_specs_vec (linker_options); |
d7a9644e | 5722 | break; |
5723 | ||
69587571 | 5724 | /* Dump out the options accumulated previously using -Wa,. */ |
5725 | case 'Y': | |
74c33122 | 5726 | do_specs_vec (assembler_options); |
69587571 | 5727 | break; |
5728 | ||
391d9b6e | 5729 | /* Dump out the options accumulated previously using -Wp,. */ |
5730 | case 'Z': | |
74c33122 | 5731 | do_specs_vec (preprocessor_options); |
391d9b6e | 5732 | break; |
5733 | ||
d7a9644e | 5734 | /* Here are digits and numbers that just process |
5735 | a certain constant string as a spec. */ | |
5736 | ||
5737 | case '1': | |
d946ea19 | 5738 | value = do_spec_1 (cc1_spec, 0, NULL); |
fd8c18f0 | 5739 | if (value != 0) |
5740 | return value; | |
d7a9644e | 5741 | break; |
5742 | ||
5743 | case '2': | |
d946ea19 | 5744 | value = do_spec_1 (cc1plus_spec, 0, NULL); |
fd8c18f0 | 5745 | if (value != 0) |
5746 | return value; | |
d7a9644e | 5747 | break; |
5748 | ||
5749 | case 'a': | |
d946ea19 | 5750 | value = do_spec_1 (asm_spec, 0, NULL); |
fd8c18f0 | 5751 | if (value != 0) |
5752 | return value; | |
d7a9644e | 5753 | break; |
5754 | ||
5755 | case 'A': | |
d946ea19 | 5756 | value = do_spec_1 (asm_final_spec, 0, NULL); |
fd8c18f0 | 5757 | if (value != 0) |
5758 | return value; | |
d7a9644e | 5759 | break; |
5760 | ||
d7a9644e | 5761 | case 'C': |
96842e40 | 5762 | { |
0d95286f | 5763 | const char *const spec |
3cfec666 | 5764 | = (input_file_compiler->cpp_spec |
5765 | ? input_file_compiler->cpp_spec | |
96842e40 | 5766 | : cpp_spec); |
d946ea19 | 5767 | value = do_spec_1 (spec, 0, NULL); |
96842e40 | 5768 | if (value != 0) |
5769 | return value; | |
5770 | } | |
d7a9644e | 5771 | break; |
5772 | ||
5773 | case 'E': | |
d946ea19 | 5774 | value = do_spec_1 (endfile_spec, 0, NULL); |
fd8c18f0 | 5775 | if (value != 0) |
5776 | return value; | |
d7a9644e | 5777 | break; |
5778 | ||
5779 | case 'l': | |
d946ea19 | 5780 | value = do_spec_1 (link_spec, 0, NULL); |
fd8c18f0 | 5781 | if (value != 0) |
5782 | return value; | |
d7a9644e | 5783 | break; |
5784 | ||
5785 | case 'L': | |
d946ea19 | 5786 | value = do_spec_1 (lib_spec, 0, NULL); |
fd8c18f0 | 5787 | if (value != 0) |
5788 | return value; | |
d7a9644e | 5789 | break; |
5790 | ||
c93570ad | 5791 | case 'M': |
5792 | if (multilib_os_dir == NULL) | |
5793 | obstack_1grow (&obstack, '.'); | |
5794 | else | |
5795 | obstack_grow (&obstack, multilib_os_dir, | |
5796 | strlen (multilib_os_dir)); | |
5797 | break; | |
5798 | ||
b7c87ff2 | 5799 | case 'G': |
d946ea19 | 5800 | value = do_spec_1 (libgcc_spec, 0, NULL); |
b7c87ff2 | 5801 | if (value != 0) |
5802 | return value; | |
5803 | break; | |
5804 | ||
805e22b2 | 5805 | case 'R': |
5806 | /* We assume there is a directory | |
5807 | separator at the end of this string. */ | |
5808 | if (target_system_root) | |
952f0048 | 5809 | { |
5810 | obstack_grow (&obstack, target_system_root, | |
4ea70922 | 5811 | strlen (target_system_root)); |
5812 | if (target_sysroot_suffix) | |
952f0048 | 5813 | obstack_grow (&obstack, target_sysroot_suffix, |
4ea70922 | 5814 | strlen (target_sysroot_suffix)); |
5815 | } | |
805e22b2 | 5816 | break; |
5817 | ||
d7a9644e | 5818 | case 'S': |
d946ea19 | 5819 | value = do_spec_1 (startfile_spec, 0, NULL); |
fd8c18f0 | 5820 | if (value != 0) |
5821 | return value; | |
d7a9644e | 5822 | break; |
5823 | ||
5824 | /* Here we define characters other than letters and digits. */ | |
5825 | ||
5826 | case '{': | |
5827 | p = handle_braces (p); | |
5828 | if (p == 0) | |
5829 | return -1; | |
5830 | break; | |
5831 | ||
c21b3276 | 5832 | case ':': |
9e46467d | 5833 | p = handle_spec_function (p, NULL); |
c21b3276 | 5834 | if (p == 0) |
5835 | return -1; | |
5836 | break; | |
5837 | ||
d7a9644e | 5838 | case '%': |
5839 | obstack_1grow (&obstack, '%'); | |
5840 | break; | |
5841 | ||
3cfec666 | 5842 | case '.': |
5843 | { | |
5844 | unsigned len = 0; | |
bdbd5352 | 5845 | |
3cfec666 | 5846 | while (p[len] && p[len] != ' ' && p[len] != '%') |
5847 | len++; | |
5848 | suffix_subst = save_string (p - 1, len + 1); | |
5849 | p += len; | |
5850 | } | |
bdbd5352 | 5851 | break; |
3cfec666 | 5852 | |
805e22b2 | 5853 | /* Henceforth ignore the option(s) matching the pattern |
5854 | after the %<. */ | |
5855 | case '<': | |
5c1421d7 | 5856 | case '>': |
805e22b2 | 5857 | { |
5858 | unsigned len = 0; | |
5859 | int have_wildcard = 0; | |
5860 | int i; | |
5c1421d7 | 5861 | int switch_option; |
5862 | ||
5863 | if (c == '>') | |
5864 | switch_option = SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC; | |
5865 | else | |
5866 | switch_option = SWITCH_IGNORE; | |
805e22b2 | 5867 | |
5868 | while (p[len] && p[len] != ' ' && p[len] != '\t') | |
5869 | len++; | |
5870 | ||
5871 | if (p[len-1] == '*') | |
5872 | have_wildcard = 1; | |
5873 | ||
5874 | for (i = 0; i < n_switches; i++) | |
5875 | if (!strncmp (switches[i].part1, p, len - have_wildcard) | |
5876 | && (have_wildcard || switches[i].part1[len] == '\0')) | |
5877 | { | |
5c1421d7 | 5878 | switches[i].live_cond |= switch_option; |
556cfe53 | 5879 | /* User switch be validated from validate_all_switches. |
5880 | when the definition is seen from the spec file. | |
5881 | If not defined anywhere, will be rejected. */ | |
5882 | if (switches[i].known) | |
5883 | switches[i].validated = true; | |
805e22b2 | 5884 | } |
5885 | ||
5886 | p += len; | |
5887 | } | |
5888 | break; | |
5889 | ||
d7a9644e | 5890 | case '*': |
d4ea3b1f | 5891 | if (soft_matched_part) |
5892 | { | |
fde5bd5c | 5893 | if (soft_matched_part[0]) |
5894 | do_spec_1 (soft_matched_part, 1, NULL); | |
1d9ad37b | 5895 | /* Only insert a space after the substitution if it is at the |
5896 | end of the current sequence. So if: | |
5897 | ||
5898 | "%{foo=*:bar%*}%{foo=*:one%*two}" | |
5899 | ||
5900 | matches -foo=hello then it will produce: | |
5901 | ||
5902 | barhello onehellotwo | |
5903 | */ | |
5904 | if (*p == 0 || *p == '}') | |
5905 | do_spec_1 (" ", 0, NULL); | |
d4ea3b1f | 5906 | } |
5907 | else | |
5908 | /* Catch the case where a spec string contains something like | |
0c6d8c36 | 5909 | '%{foo:%*}'. i.e. there is no * in the pattern on the left |
d4ea3b1f | 5910 | hand side of the :. */ |
a8c464ac | 5911 | error ("spec failure: %<%%*%> has not been initialized by pattern match"); |
d7a9644e | 5912 | break; |
5913 | ||
5914 | /* Process a string found as the value of a spec given by name. | |
5915 | This feature allows individual machine descriptions | |
88483769 | 5916 | to add and use their own specs. */ |
d7a9644e | 5917 | case '(': |
d7a9644e | 5918 | { |
e40d43cc | 5919 | const char *name = p; |
d7a9644e | 5920 | struct spec_list *sl; |
5921 | int len; | |
5922 | ||
5923 | /* The string after the S/P is the name of a spec that is to be | |
a92771b8 | 5924 | processed. */ |
88483769 | 5925 | while (*p && *p != ')') |
d7a9644e | 5926 | p++; |
5927 | ||
d4ea3b1f | 5928 | /* See if it's in the list. */ |
d7a9644e | 5929 | for (len = p - name, sl = specs; sl; sl = sl->next) |
988c0ffe | 5930 | if (sl->name_len == len && !strncmp (sl->name, name, len)) |
d7a9644e | 5931 | { |
988c0ffe | 5932 | name = *(sl->ptr_spec); |
4582d741 | 5933 | #ifdef DEBUG_SPECS |
88483769 | 5934 | fnotice (stderr, "Processing spec (%s), which is '%s'\n", |
5935 | sl->name, name); | |
4582d741 | 5936 | #endif |
d7a9644e | 5937 | break; |
5938 | } | |
5939 | ||
5940 | if (sl) | |
5941 | { | |
88483769 | 5942 | value = do_spec_1 (name, 0, NULL); |
5943 | if (value != 0) | |
5944 | return value; | |
d7a9644e | 5945 | } |
8894538a | 5946 | |
88483769 | 5947 | /* Discard the closing paren. */ |
8894538a | 5948 | if (*p) |
5949 | p++; | |
d7a9644e | 5950 | } |
5951 | break; | |
5952 | ||
5953 | default: | |
a8c464ac | 5954 | error ("spec failure: unrecognized spec option %qc", c); |
d4ea3b1f | 5955 | break; |
d7a9644e | 5956 | } |
5957 | break; | |
5958 | ||
5959 | case '\\': | |
5960 | /* Backslash: treat next character as ordinary. */ | |
5961 | c = *p++; | |
5962 | ||
b4b174c3 | 5963 | /* Fall through. */ |
d7a9644e | 5964 | default: |
5965 | /* Ordinary character: put it into the current argument. */ | |
5966 | obstack_1grow (&obstack, c); | |
5967 | arg_going = 1; | |
5968 | } | |
5969 | ||
c21b3276 | 5970 | /* End of string. If we are processing a spec function, we need to |
5971 | end any pending argument. */ | |
558cc3be | 5972 | if (processing_spec_function) |
5973 | end_going_arg (); | |
c21b3276 | 5974 | |
026f2c7a | 5975 | return 0; |
d7a9644e | 5976 | } |
5977 | ||
c21b3276 | 5978 | /* Look up a spec function. */ |
5979 | ||
5980 | static const struct spec_function * | |
952f0048 | 5981 | lookup_spec_function (const char *name) |
c21b3276 | 5982 | { |
c21b3276 | 5983 | const struct spec_function *sf; |
c21b3276 | 5984 | |
0bb0fa6a | 5985 | for (sf = static_spec_functions; sf->name != NULL; sf++) |
5986 | if (strcmp (sf->name, name) == 0) | |
5987 | return sf; | |
c21b3276 | 5988 | |
5989 | return NULL; | |
5990 | } | |
5991 | ||
5992 | /* Evaluate a spec function. */ | |
5993 | ||
5994 | static const char * | |
952f0048 | 5995 | eval_spec_function (const char *func, const char *args) |
c21b3276 | 5996 | { |
5997 | const struct spec_function *sf; | |
5998 | const char *funcval; | |
5999 | ||
6000 | /* Saved spec processing context. */ | |
f1f41a6c | 6001 | vec<const_char_p> save_argbuf; |
c21b3276 | 6002 | |
6003 | int save_arg_going; | |
6004 | int save_delete_this_arg; | |
6005 | int save_this_is_output_file; | |
6006 | int save_this_is_library_file; | |
6007 | int save_input_from_pipe; | |
d7ee9e9b | 6008 | int save_this_is_linker_script; |
c21b3276 | 6009 | const char *save_suffix_subst; |
6010 | ||
e2efe9af | 6011 | int save_growing_size; |
13858b08 | 6012 | void *save_growing_value = NULL; |
c21b3276 | 6013 | |
6014 | sf = lookup_spec_function (func); | |
6015 | if (sf == NULL) | |
c05be867 | 6016 | fatal_error (input_location, "unknown spec function %qs", func); |
c21b3276 | 6017 | |
6018 | /* Push the spec processing context. */ | |
c21b3276 | 6019 | save_argbuf = argbuf; |
6020 | ||
6021 | save_arg_going = arg_going; | |
6022 | save_delete_this_arg = delete_this_arg; | |
6023 | save_this_is_output_file = this_is_output_file; | |
6024 | save_this_is_library_file = this_is_library_file; | |
d7ee9e9b | 6025 | save_this_is_linker_script = this_is_linker_script; |
c21b3276 | 6026 | save_input_from_pipe = input_from_pipe; |
6027 | save_suffix_subst = suffix_subst; | |
6028 | ||
e2efe9af | 6029 | /* If we have some object growing now, finalize it so the args and function |
6030 | eval proceed from a cleared context. This is needed to prevent the first | |
6031 | constructed arg from mistakenly including the growing value. We'll push | |
6032 | this value back on the obstack once the function evaluation is done, to | |
6033 | restore a consistent processing context for our caller. This is fine as | |
6034 | the address of growing objects isn't guaranteed to remain stable until | |
6035 | they are finalized, and we expect this situation to be rare enough for | |
6036 | the extra copy not to be an issue. */ | |
6037 | save_growing_size = obstack_object_size (&obstack); | |
6038 | if (save_growing_size > 0) | |
6039 | save_growing_value = obstack_finish (&obstack); | |
6040 | ||
c21b3276 | 6041 | /* Create a new spec processing context, and build the function |
6042 | arguments. */ | |
6043 | ||
6044 | alloc_args (); | |
6045 | if (do_spec_2 (args) < 0) | |
c05be867 | 6046 | fatal_error (input_location, "error in args to spec function %qs", func); |
c21b3276 | 6047 | |
6048 | /* argbuf_index is an index for the next argument to be inserted, and | |
6049 | so contains the count of the args already inserted. */ | |
6050 | ||
f1f41a6c | 6051 | funcval = (*sf->func) (argbuf.length (), |
6052 | argbuf.address ()); | |
c21b3276 | 6053 | |
6054 | /* Pop the spec processing context. */ | |
f1f41a6c | 6055 | argbuf.release (); |
c21b3276 | 6056 | argbuf = save_argbuf; |
6057 | ||
6058 | arg_going = save_arg_going; | |
6059 | delete_this_arg = save_delete_this_arg; | |
6060 | this_is_output_file = save_this_is_output_file; | |
6061 | this_is_library_file = save_this_is_library_file; | |
d7ee9e9b | 6062 | this_is_linker_script = save_this_is_linker_script; |
c21b3276 | 6063 | input_from_pipe = save_input_from_pipe; |
6064 | suffix_subst = save_suffix_subst; | |
6065 | ||
e2efe9af | 6066 | if (save_growing_size > 0) |
6067 | obstack_grow (&obstack, save_growing_value, save_growing_size); | |
6068 | ||
c21b3276 | 6069 | return funcval; |
6070 | } | |
6071 | ||
6072 | /* Handle a spec function call of the form: | |
6073 | ||
6074 | %:function(args) | |
6075 | ||
6076 | ARGS is processed as a spec in a separate context and split into an | |
6077 | argument vector in the normal fashion. The function returns a string | |
6078 | containing a spec which we then process in the caller's context, or | |
9e46467d | 6079 | NULL if no processing is required. |
6080 | ||
6081 | If RETVAL_NONNULL is not NULL, then store a bool whether function | |
6082 | returned non-NULL. */ | |
c21b3276 | 6083 | |
6084 | static const char * | |
9e46467d | 6085 | handle_spec_function (const char *p, bool *retval_nonnull) |
c21b3276 | 6086 | { |
6087 | char *func, *args; | |
6088 | const char *endp, *funcval; | |
6089 | int count; | |
6090 | ||
6091 | processing_spec_function++; | |
6092 | ||
6093 | /* Get the function name. */ | |
6094 | for (endp = p; *endp != '\0'; endp++) | |
6095 | { | |
6096 | if (*endp == '(') /* ) */ | |
6097 | break; | |
6098 | /* Only allow [A-Za-z0-9], -, and _ in function names. */ | |
6099 | if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_')) | |
c05be867 | 6100 | fatal_error (input_location, "malformed spec function name"); |
c21b3276 | 6101 | } |
6102 | if (*endp != '(') /* ) */ | |
c05be867 | 6103 | fatal_error (input_location, "no arguments for spec function"); |
c21b3276 | 6104 | func = save_string (p, endp - p); |
6105 | p = ++endp; | |
6106 | ||
6107 | /* Get the arguments. */ | |
6108 | for (count = 0; *endp != '\0'; endp++) | |
6109 | { | |
6110 | /* ( */ | |
6111 | if (*endp == ')') | |
6112 | { | |
6113 | if (count == 0) | |
6114 | break; | |
6115 | count--; | |
6116 | } | |
6117 | else if (*endp == '(') /* ) */ | |
6118 | count++; | |
6119 | } | |
6120 | /* ( */ | |
6121 | if (*endp != ')') | |
c05be867 | 6122 | fatal_error (input_location, "malformed spec function arguments"); |
c21b3276 | 6123 | args = save_string (p, endp - p); |
6124 | p = ++endp; | |
6125 | ||
6126 | /* p now points to just past the end of the spec function expression. */ | |
6127 | ||
6128 | funcval = eval_spec_function (func, args); | |
6129 | if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0) | |
6130 | p = NULL; | |
9e46467d | 6131 | if (retval_nonnull) |
6132 | *retval_nonnull = funcval != NULL; | |
c21b3276 | 6133 | |
6134 | free (func); | |
6135 | free (args); | |
6136 | ||
6137 | processing_spec_function--; | |
6138 | ||
6139 | return p; | |
6140 | } | |
6141 | ||
805e22b2 | 6142 | /* Inline subroutine of handle_braces. Returns true if the current |
6143 | input suffix matches the atom bracketed by ATOM and END_ATOM. */ | |
6144 | static inline bool | |
952f0048 | 6145 | input_suffix_matches (const char *atom, const char *end_atom) |
805e22b2 | 6146 | { |
6147 | return (input_suffix | |
6148 | && !strncmp (input_suffix, atom, end_atom - atom) | |
6149 | && input_suffix[end_atom - atom] == '\0'); | |
6150 | } | |
d7a9644e | 6151 | |
90e35d1a | 6152 | /* Subroutine of handle_braces. Returns true if the current |
6153 | input file's spec name matches the atom bracketed by ATOM and END_ATOM. */ | |
6154 | static bool | |
6155 | input_spec_matches (const char *atom, const char *end_atom) | |
6156 | { | |
6157 | return (input_file_compiler | |
6158 | && input_file_compiler->suffix | |
6159 | && input_file_compiler->suffix[0] != '\0' | |
6160 | && !strncmp (input_file_compiler->suffix + 1, atom, | |
6161 | end_atom - atom) | |
6162 | && input_file_compiler->suffix[end_atom - atom + 1] == '\0'); | |
6163 | } | |
6164 | ||
1e8e9920 | 6165 | /* Subroutine of handle_braces. Returns true if a switch |
805e22b2 | 6166 | matching the atom bracketed by ATOM and END_ATOM appeared on the |
6167 | command line. */ | |
1e8e9920 | 6168 | static bool |
952f0048 | 6169 | switch_matches (const char *atom, const char *end_atom, int starred) |
d7a9644e | 6170 | { |
805e22b2 | 6171 | int i; |
6172 | int len = end_atom - atom; | |
6173 | int plen = starred ? len : -1; | |
d7a9644e | 6174 | |
805e22b2 | 6175 | for (i = 0; i < n_switches; i++) |
6176 | if (!strncmp (switches[i].part1, atom, len) | |
6177 | && (starred || switches[i].part1[len] == '\0') | |
6178 | && check_live_switch (i, plen)) | |
6179 | return true; | |
4a10d696 | 6180 | |
cbe25b89 | 6181 | /* Check if a switch with separated form matching the atom. |
6182 | We check -D and -U switches. */ | |
6183 | else if (switches[i].args != 0) | |
6184 | { | |
6185 | if ((*switches[i].part1 == 'D' || *switches[i].part1 == 'U') | |
6186 | && *switches[i].part1 == atom[0]) | |
6187 | { | |
6188 | if (!strncmp (switches[i].args[0], &atom[1], len - 1) | |
6189 | && (starred || (switches[i].part1[1] == '\0' | |
6190 | && switches[i].args[0][len - 1] == '\0')) | |
6191 | && check_live_switch (i, (starred ? 1 : -1))) | |
6192 | return true; | |
6193 | } | |
6194 | } | |
6195 | ||
805e22b2 | 6196 | return false; |
6197 | } | |
d7a9644e | 6198 | |
805e22b2 | 6199 | /* Inline subroutine of handle_braces. Mark all of the switches which |
6200 | match ATOM (extends to END_ATOM; STARRED indicates whether there | |
6201 | was a star after the atom) for later processing. */ | |
6202 | static inline void | |
952f0048 | 6203 | mark_matching_switches (const char *atom, const char *end_atom, int starred) |
805e22b2 | 6204 | { |
6205 | int i; | |
6206 | int len = end_atom - atom; | |
6207 | int plen = starred ? len : -1; | |
6208 | ||
6209 | for (i = 0; i < n_switches; i++) | |
6210 | if (!strncmp (switches[i].part1, atom, len) | |
6211 | && (starred || switches[i].part1[len] == '\0') | |
6212 | && check_live_switch (i, plen)) | |
6213 | switches[i].ordering = 1; | |
6214 | } | |
ae70654c | 6215 | |
805e22b2 | 6216 | /* Inline subroutine of handle_braces. Process all the currently |
6217 | marked switches through give_switch, and clear the marks. */ | |
6218 | static inline void | |
952f0048 | 6219 | process_marked_switches (void) |
805e22b2 | 6220 | { |
6221 | int i; | |
d7a9644e | 6222 | |
805e22b2 | 6223 | for (i = 0; i < n_switches; i++) |
6224 | if (switches[i].ordering == 1) | |
6225 | { | |
6226 | switches[i].ordering = 0; | |
6227 | give_switch (i, 0); | |
6228 | } | |
6229 | } | |
d7a9644e | 6230 | |
805e22b2 | 6231 | /* Handle a %{ ... } construct. P points just inside the leading {. |
6232 | Returns a pointer one past the end of the brace block, or 0 | |
6233 | if we call do_spec_1 and that returns -1. */ | |
d7a9644e | 6234 | |
805e22b2 | 6235 | static const char * |
952f0048 | 6236 | handle_braces (const char *p) |
805e22b2 | 6237 | { |
6238 | const char *atom, *end_atom; | |
6239 | const char *d_atom = NULL, *d_end_atom = NULL; | |
5e8f3c31 | 6240 | const char *orig = p; |
4a10d696 | 6241 | |
805e22b2 | 6242 | bool a_is_suffix; |
90e35d1a | 6243 | bool a_is_spectype; |
805e22b2 | 6244 | bool a_is_starred; |
6245 | bool a_is_negated; | |
6246 | bool a_matched; | |
ae70654c | 6247 | |
805e22b2 | 6248 | bool a_must_be_last = false; |
6249 | bool ordered_set = false; | |
6250 | bool disjunct_set = false; | |
6251 | bool disj_matched = false; | |
6252 | bool disj_starred = true; | |
6253 | bool n_way_choice = false; | |
6254 | bool n_way_matched = false; | |
6255 | ||
6256 | #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0) | |
ae70654c | 6257 | |
805e22b2 | 6258 | do |
d7a9644e | 6259 | { |
805e22b2 | 6260 | if (a_must_be_last) |
5e8f3c31 | 6261 | goto invalid; |
ae70654c | 6262 | |
805e22b2 | 6263 | /* Scan one "atom" (S in the description above of %{}, possibly |
90e35d1a | 6264 | with '!', '.', '@', ',', or '*' modifiers). */ |
6265 | a_matched = false; | |
6266 | a_is_suffix = false; | |
6267 | a_is_starred = false; | |
6268 | a_is_negated = false; | |
6269 | a_is_spectype = false; | |
2c815aff | 6270 | |
9af5ce0c | 6271 | SKIP_WHITE (); |
805e22b2 | 6272 | if (*p == '!') |
6273 | p++, a_is_negated = true; | |
d7a9644e | 6274 | |
9af5ce0c | 6275 | SKIP_WHITE (); |
9e46467d | 6276 | if (*p == '%' && p[1] == ':') |
6277 | { | |
6278 | atom = NULL; | |
6279 | end_atom = NULL; | |
6280 | p = handle_spec_function (p + 2, &a_matched); | |
6281 | } | |
6282 | else | |
6283 | { | |
6284 | if (*p == '.') | |
6285 | p++, a_is_suffix = true; | |
6286 | else if (*p == ',') | |
6287 | p++, a_is_spectype = true; | |
6288 | ||
6289 | atom = p; | |
9af5ce0c | 6290 | while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '=' |
9e46467d | 6291 | || *p == ',' || *p == '.' || *p == '@') |
6292 | p++; | |
6293 | end_atom = p; | |
d7a9644e | 6294 | |
9e46467d | 6295 | if (*p == '*') |
6296 | p++, a_is_starred = 1; | |
6297 | } | |
e1478c0f | 6298 | |
9af5ce0c | 6299 | SKIP_WHITE (); |
5e8f3c31 | 6300 | switch (*p) |
805e22b2 | 6301 | { |
5e8f3c31 | 6302 | case '&': case '}': |
805e22b2 | 6303 | /* Substitute the switch(es) indicated by the current atom. */ |
6304 | ordered_set = true; | |
6305 | if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix | |
90e35d1a | 6306 | || a_is_spectype || atom == end_atom) |
5e8f3c31 | 6307 | goto invalid; |
d7a9644e | 6308 | |
805e22b2 | 6309 | mark_matching_switches (atom, end_atom, a_is_starred); |
6310 | ||
6311 | if (*p == '}') | |
6312 | process_marked_switches (); | |
5e8f3c31 | 6313 | break; |
6314 | ||
6315 | case '|': case ':': | |
805e22b2 | 6316 | /* Substitute some text if the current atom appears as a switch |
6317 | or suffix. */ | |
6318 | disjunct_set = true; | |
6319 | if (ordered_set) | |
5e8f3c31 | 6320 | goto invalid; |
d7a9644e | 6321 | |
9e46467d | 6322 | if (atom && atom == end_atom) |
d7a9644e | 6323 | { |
805e22b2 | 6324 | if (!n_way_choice || disj_matched || *p == '|' |
48e1416a | 6325 | || a_is_negated || a_is_suffix || a_is_spectype |
90e35d1a | 6326 | || a_is_starred) |
5e8f3c31 | 6327 | goto invalid; |
805e22b2 | 6328 | |
6329 | /* An empty term may appear as the last choice of an | |
6330 | N-way choice set; it means "otherwise". */ | |
6331 | a_must_be_last = true; | |
6332 | disj_matched = !n_way_matched; | |
6333 | disj_starred = false; | |
d7a9644e | 6334 | } |
805e22b2 | 6335 | else |
d7a9644e | 6336 | { |
90e35d1a | 6337 | if ((a_is_suffix || a_is_spectype) && a_is_starred) |
6338 | goto invalid; | |
d7ee9e9b | 6339 | |
90e35d1a | 6340 | if (!a_is_starred) |
6341 | disj_starred = false; | |
6342 | ||
6343 | /* Don't bother testing this atom if we already have a | |
6344 | match. */ | |
6345 | if (!disj_matched && !n_way_matched) | |
6346 | { | |
9e46467d | 6347 | if (atom == NULL) |
6348 | /* a_matched is already set by handle_spec_function. */; | |
6349 | else if (a_is_suffix) | |
90e35d1a | 6350 | a_matched = input_suffix_matches (atom, end_atom); |
6351 | else if (a_is_spectype) | |
6352 | a_matched = input_spec_matches (atom, end_atom); | |
6353 | else | |
6354 | a_matched = switch_matches (atom, end_atom, a_is_starred); | |
d7ee9e9b | 6355 | |
90e35d1a | 6356 | if (a_matched != a_is_negated) |
6357 | { | |
6358 | disj_matched = true; | |
6359 | d_atom = atom; | |
6360 | d_end_atom = end_atom; | |
6361 | } | |
6362 | } | |
d7a9644e | 6363 | } |
d7a9644e | 6364 | |
805e22b2 | 6365 | if (*p == ':') |
d7a9644e | 6366 | { |
805e22b2 | 6367 | /* Found the body, that is, the text to substitute if the |
6368 | current disjunction matches. */ | |
6369 | p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred, | |
6370 | disj_matched && !n_way_matched); | |
6371 | if (p == 0) | |
6372 | return 0; | |
d7a9644e | 6373 | |
805e22b2 | 6374 | /* If we have an N-way choice, reset state for the next |
6375 | disjunction. */ | |
6376 | if (*p == ';') | |
d7a9644e | 6377 | { |
805e22b2 | 6378 | n_way_choice = true; |
6379 | n_way_matched |= disj_matched; | |
6380 | disj_matched = false; | |
6381 | disj_starred = true; | |
6382 | d_atom = d_end_atom = NULL; | |
d7a9644e | 6383 | } |
6384 | } | |
5e8f3c31 | 6385 | break; |
6386 | ||
6387 | default: | |
6388 | goto invalid; | |
d7a9644e | 6389 | } |
805e22b2 | 6390 | } |
6391 | while (*p++ != '}'); | |
d7a9644e | 6392 | |
805e22b2 | 6393 | return p; |
2f2c6aee | 6394 | |
5e8f3c31 | 6395 | invalid: |
c05be867 | 6396 | fatal_error (input_location, "braced spec %qs is invalid at %qc", orig, *p); |
2f2c6aee | 6397 | |
805e22b2 | 6398 | #undef SKIP_WHITE |
6399 | } | |
6400 | ||
6401 | /* Subroutine of handle_braces. Scan and process a brace substitution body | |
6402 | (X in the description of %{} syntax). P points one past the colon; | |
6403 | ATOM and END_ATOM bracket the first atom which was found to be true | |
6404 | (present) in the current disjunction; STARRED indicates whether all | |
6405 | the atoms in the current disjunction were starred (for syntax validation); | |
6406 | MATCHED indicates whether the disjunction matched or not, and therefore | |
6407 | whether or not the body is to be processed through do_spec_1 or just | |
6408 | skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1 | |
6409 | returns -1. */ | |
6410 | ||
6411 | static const char * | |
952f0048 | 6412 | process_brace_body (const char *p, const char *atom, const char *end_atom, |
6413 | int starred, int matched) | |
805e22b2 | 6414 | { |
6415 | const char *body, *end_body; | |
6416 | unsigned int nesting_level; | |
6417 | bool have_subst = false; | |
6418 | ||
6419 | /* Locate the closing } or ;, honoring nested braces. | |
6420 | Trim trailing whitespace. */ | |
6421 | body = p; | |
6422 | nesting_level = 1; | |
6423 | for (;;) | |
6424 | { | |
6425 | if (*p == '{') | |
6426 | nesting_level++; | |
6427 | else if (*p == '}') | |
d7a9644e | 6428 | { |
805e22b2 | 6429 | if (!--nesting_level) |
6430 | break; | |
d7a9644e | 6431 | } |
805e22b2 | 6432 | else if (*p == ';' && nesting_level == 1) |
6433 | break; | |
6434 | else if (*p == '%' && p[1] == '*' && nesting_level == 1) | |
6435 | have_subst = true; | |
6436 | else if (*p == '\0') | |
5e8f3c31 | 6437 | goto invalid; |
805e22b2 | 6438 | p++; |
d7a9644e | 6439 | } |
952f0048 | 6440 | |
805e22b2 | 6441 | end_body = p; |
6442 | while (end_body[-1] == ' ' || end_body[-1] == '\t') | |
6443 | end_body--; | |
d7a9644e | 6444 | |
805e22b2 | 6445 | if (have_subst && !starred) |
5e8f3c31 | 6446 | goto invalid; |
ae70654c | 6447 | |
805e22b2 | 6448 | if (matched) |
e1478c0f | 6449 | { |
805e22b2 | 6450 | /* Copy the substitution body to permanent storage and execute it. |
6451 | If have_subst is false, this is a simple matter of running the | |
6452 | body through do_spec_1... */ | |
6453 | char *string = save_string (body, end_body - body); | |
6454 | if (!have_subst) | |
6455 | { | |
6456 | if (do_spec_1 (string, 0, NULL) < 0) | |
26a4a13d | 6457 | { |
6458 | free (string); | |
6459 | return 0; | |
6460 | } | |
805e22b2 | 6461 | } |
6462 | else | |
6463 | { | |
6464 | /* ... but if have_subst is true, we have to process the | |
6465 | body once for each matching switch, with %* set to the | |
6466 | variant part of the switch. */ | |
6467 | unsigned int hard_match_len = end_atom - atom; | |
6468 | int i; | |
e1478c0f | 6469 | |
805e22b2 | 6470 | for (i = 0; i < n_switches; i++) |
6471 | if (!strncmp (switches[i].part1, atom, hard_match_len) | |
6472 | && check_live_switch (i, hard_match_len)) | |
6473 | { | |
6474 | if (do_spec_1 (string, 0, | |
6475 | &switches[i].part1[hard_match_len]) < 0) | |
26a4a13d | 6476 | { |
6477 | free (string); | |
6478 | return 0; | |
6479 | } | |
805e22b2 | 6480 | /* Pass any arguments this switch has. */ |
6481 | give_switch (i, 1); | |
6482 | suffix_subst = NULL; | |
6483 | } | |
6484 | } | |
26a4a13d | 6485 | free (string); |
dead3293 | 6486 | } |
6487 | ||
805e22b2 | 6488 | return p; |
5e8f3c31 | 6489 | |
6490 | invalid: | |
c05be867 | 6491 | fatal_error (input_location, "braced spec body %qs is invalid", body); |
d7a9644e | 6492 | } |
cde688ab | 6493 | \f |
d870e215 | 6494 | /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch |
6495 | on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*} | |
6496 | spec, or -1 if either exact match or %* is used. | |
cde688ab | 6497 | |
b35329c7 | 6498 | A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch |
cde688ab | 6499 | whose value does not begin with "no-" is obsoleted by the same value |
6500 | with the "no-", similarly for a switch with the "no-" prefix. */ | |
6501 | ||
6502 | static int | |
952f0048 | 6503 | check_live_switch (int switchnum, int prefix_length) |
cde688ab | 6504 | { |
e40d43cc | 6505 | const char *name = switches[switchnum].part1; |
cde688ab | 6506 | int i; |
6507 | ||
71278019 | 6508 | /* If we already processed this switch and determined if it was |
6509 | live or not, return our past determination. */ | |
6510 | if (switches[switchnum].live_cond != 0) | |
6511 | return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0 | |
6512 | && (switches[switchnum].live_cond & SWITCH_FALSE) == 0 | |
87a6a1b5 | 6513 | && (switches[switchnum].live_cond & SWITCH_IGNORE_PERMANENTLY) |
6514 | == 0); | |
71278019 | 6515 | |
d870e215 | 6516 | /* In the common case of {<at-most-one-letter>*}, a negating |
cde688ab | 6517 | switch would always match, so ignore that case. We will just |
6518 | send the conflicting switches to the compiler phase. */ | |
d870e215 | 6519 | if (prefix_length >= 0 && prefix_length <= 1) |
cde688ab | 6520 | return 1; |
6521 | ||
cde688ab | 6522 | /* Now search for duplicate in a manner that depends on the name. */ |
6523 | switch (*name) | |
6524 | { | |
6525 | case 'O': | |
026f2c7a | 6526 | for (i = switchnum + 1; i < n_switches; i++) |
6527 | if (switches[i].part1[0] == 'O') | |
6528 | { | |
556cfe53 | 6529 | switches[switchnum].validated = true; |
026f2c7a | 6530 | switches[switchnum].live_cond = SWITCH_FALSE; |
6531 | return 0; | |
6532 | } | |
cde688ab | 6533 | break; |
d7a9644e | 6534 | |
b35329c7 | 6535 | case 'W': case 'f': case 'm': case 'g': |
d870e215 | 6536 | if (! strncmp (name + 1, "no-", 3)) |
cde688ab | 6537 | { |
a92771b8 | 6538 | /* We have Xno-YYY, search for XYYY. */ |
cde688ab | 6539 | for (i = switchnum + 1; i < n_switches; i++) |
6540 | if (switches[i].part1[0] == name[0] | |
6541 | && ! strcmp (&switches[i].part1[1], &name[4])) | |
026f2c7a | 6542 | { |
556cfe53 | 6543 | /* --specs are validated with the validate_switches mechanism. */ |
6544 | if (switches[switchnum].known) | |
6545 | switches[switchnum].validated = true; | |
026f2c7a | 6546 | switches[switchnum].live_cond = SWITCH_FALSE; |
6547 | return 0; | |
6548 | } | |
cde688ab | 6549 | } |
6550 | else | |
6551 | { | |
6552 | /* We have XYYY, search for Xno-YYY. */ | |
6553 | for (i = switchnum + 1; i < n_switches; i++) | |
6554 | if (switches[i].part1[0] == name[0] | |
6555 | && switches[i].part1[1] == 'n' | |
6556 | && switches[i].part1[2] == 'o' | |
6557 | && switches[i].part1[3] == '-' | |
6558 | && !strcmp (&switches[i].part1[4], &name[1])) | |
026f2c7a | 6559 | { |
556cfe53 | 6560 | /* --specs are validated with the validate_switches mechanism. */ |
6561 | if (switches[switchnum].known) | |
6562 | switches[switchnum].validated = true; | |
026f2c7a | 6563 | switches[switchnum].live_cond = SWITCH_FALSE; |
6564 | return 0; | |
6565 | } | |
cde688ab | 6566 | } |
6567 | break; | |
6568 | } | |
6569 | ||
6570 | /* Otherwise the switch is live. */ | |
79d52444 | 6571 | switches[switchnum].live_cond |= SWITCH_LIVE; |
cde688ab | 6572 | return 1; |
6573 | } | |
6574 | \f | |
d7a9644e | 6575 | /* Pass a switch to the current accumulating command |
6576 | in the same form that we received it. | |
6577 | SWITCHNUM identifies the switch; it is an index into | |
6578 | the vector of switches gcc received, which is `switches'. | |
6579 | This cannot fail since it never finishes a command line. | |
6580 | ||
805e22b2 | 6581 | If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */ |
d7a9644e | 6582 | |
6583 | static void | |
952f0048 | 6584 | give_switch (int switchnum, int omit_first_word) |
d7a9644e | 6585 | { |
79d52444 | 6586 | if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0) |
4a10d696 | 6587 | return; |
6588 | ||
d7a9644e | 6589 | if (!omit_first_word) |
6590 | { | |
d946ea19 | 6591 | do_spec_1 ("-", 0, NULL); |
6592 | do_spec_1 (switches[switchnum].part1, 1, NULL); | |
d7a9644e | 6593 | } |
3796373b | 6594 | |
d7a9644e | 6595 | if (switches[switchnum].args != 0) |
6596 | { | |
2508fdc3 | 6597 | const char **p; |
d7a9644e | 6598 | for (p = switches[switchnum].args; *p; p++) |
6599 | { | |
bdbd5352 | 6600 | const char *arg = *p; |
6601 | ||
805e22b2 | 6602 | do_spec_1 (" ", 0, NULL); |
bdbd5352 | 6603 | if (suffix_subst) |
6604 | { | |
6605 | unsigned length = strlen (arg); | |
633199a0 | 6606 | int dot = 0; |
bdbd5352 | 6607 | |
6608 | while (length-- && !IS_DIR_SEPARATOR (arg[length])) | |
6609 | if (arg[length] == '.') | |
6610 | { | |
9af5ce0c | 6611 | (CONST_CAST (char *, arg))[length] = 0; |
633199a0 | 6612 | dot = 1; |
bdbd5352 | 6613 | break; |
6614 | } | |
d946ea19 | 6615 | do_spec_1 (arg, 1, NULL); |
633199a0 | 6616 | if (dot) |
9af5ce0c | 6617 | (CONST_CAST (char *, arg))[length] = '.'; |
633199a0 | 6618 | do_spec_1 (suffix_subst, 1, NULL); |
bdbd5352 | 6619 | } |
6620 | else | |
d946ea19 | 6621 | do_spec_1 (arg, 1, NULL); |
d7a9644e | 6622 | } |
6623 | } | |
3796373b | 6624 | |
d946ea19 | 6625 | do_spec_1 (" ", 0, NULL); |
556cfe53 | 6626 | switches[switchnum].validated = true; |
d7a9644e | 6627 | } |
6628 | \f | |
a31e9496 | 6629 | /* Print GCC configuration (e.g. version, thread model, target, |
6630 | configuration_arguments) to a given FILE. */ | |
6631 | ||
6632 | static void | |
6633 | print_configuration (FILE *file) | |
6634 | { | |
6635 | int n; | |
6636 | const char *thrmod; | |
6637 | ||
6638 | fnotice (file, "Target: %s\n", spec_machine); | |
6639 | fnotice (file, "Configured with: %s\n", configuration_arguments); | |
6640 | ||
6641 | #ifdef THREAD_MODEL_SPEC | |
6642 | /* We could have defined THREAD_MODEL_SPEC to "%*" by default, | |
6643 | but there's no point in doing all this processing just to get | |
6644 | thread_model back. */ | |
6645 | obstack_init (&obstack); | |
6646 | do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model); | |
6647 | obstack_1grow (&obstack, '\0'); | |
6648 | thrmod = XOBFINISH (&obstack, const char *); | |
6649 | #else | |
6650 | thrmod = thread_model; | |
6651 | #endif | |
6652 | ||
6653 | fnotice (file, "Thread model: %s\n", thrmod); | |
6654 | ||
6655 | /* compiler_version is truncated at the first space when initialized | |
6656 | from version string, so truncate version_string at the first space | |
6657 | before comparing. */ | |
6658 | for (n = 0; version_string[n]; n++) | |
6659 | if (version_string[n] == ' ') | |
6660 | break; | |
6661 | ||
6662 | if (! strncmp (version_string, compiler_version, n) | |
6663 | && compiler_version[n] == 0) | |
2782c04c | 6664 | fnotice (file, "gcc version %s %s\n", version_string, |
a31e9496 | 6665 | pkgversion_string); |
6666 | else | |
2782c04c | 6667 | fnotice (file, "gcc driver version %s %sexecuting gcc version %s\n", |
a31e9496 | 6668 | version_string, pkgversion_string, compiler_version); |
6669 | ||
6670 | } | |
6671 | ||
6672 | #define RETRY_ICE_ATTEMPTS 3 | |
6673 | ||
6674 | /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */ | |
6675 | ||
6676 | static bool | |
6677 | files_equal_p (char *file1, char *file2) | |
6678 | { | |
6679 | struct stat st1, st2; | |
6680 | off_t n, len; | |
6681 | int fd1, fd2; | |
6682 | const int bufsize = 8192; | |
6683 | char *buf = XNEWVEC (char, bufsize); | |
6684 | ||
6685 | fd1 = open (file1, O_RDONLY); | |
6686 | fd2 = open (file2, O_RDONLY); | |
6687 | ||
6688 | if (fd1 < 0 || fd2 < 0) | |
6689 | goto error; | |
6690 | ||
6691 | if (fstat (fd1, &st1) < 0 || fstat (fd2, &st2) < 0) | |
6692 | goto error; | |
6693 | ||
6694 | if (st1.st_size != st2.st_size) | |
6695 | goto error; | |
6696 | ||
6697 | for (n = st1.st_size; n; n -= len) | |
6698 | { | |
6699 | len = n; | |
6700 | if ((int) len > bufsize / 2) | |
6701 | len = bufsize / 2; | |
6702 | ||
6703 | if (read (fd1, buf, len) != (int) len | |
6704 | || read (fd2, buf + bufsize / 2, len) != (int) len) | |
6705 | { | |
6706 | goto error; | |
6707 | } | |
6708 | ||
6709 | if (memcmp (buf, buf + bufsize / 2, len) != 0) | |
6710 | goto error; | |
6711 | } | |
6712 | ||
6713 | free (buf); | |
6714 | close (fd1); | |
6715 | close (fd2); | |
6716 | ||
6717 | return 1; | |
6718 | ||
6719 | error: | |
6720 | free (buf); | |
6721 | close (fd1); | |
6722 | close (fd2); | |
6723 | return 0; | |
6724 | } | |
6725 | ||
6726 | /* Check that compiler's output doesn't differ across runs. | |
6727 | TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing | |
6728 | stdout and stderr for each compiler run. Return true if all of | |
6729 | TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */ | |
6730 | ||
6731 | static bool | |
6732 | check_repro (char **temp_stdout_files, char **temp_stderr_files) | |
6733 | { | |
6734 | int i; | |
6735 | for (i = 0; i < RETRY_ICE_ATTEMPTS - 2; ++i) | |
6736 | { | |
6737 | if (!files_equal_p (temp_stdout_files[i], temp_stdout_files[i + 1]) | |
6738 | || !files_equal_p (temp_stderr_files[i], temp_stderr_files[i + 1])) | |
6739 | { | |
6740 | fnotice (stderr, "The bug is not reproducible, so it is" | |
6741 | " likely a hardware or OS problem.\n"); | |
6742 | break; | |
6743 | } | |
6744 | } | |
6745 | return i == RETRY_ICE_ATTEMPTS - 2; | |
6746 | } | |
6747 | ||
6748 | enum attempt_status { | |
6749 | ATTEMPT_STATUS_FAIL_TO_RUN, | |
6750 | ATTEMPT_STATUS_SUCCESS, | |
6751 | ATTEMPT_STATUS_ICE | |
6752 | }; | |
6753 | ||
6754 | ||
6755 | /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout | |
6756 | to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP | |
6757 | and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write | |
6758 | GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if | |
6759 | compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and | |
6760 | ATTEMPT_STATUS_SUCCESS otherwise. */ | |
6761 | ||
6762 | static enum attempt_status | |
6763 | run_attempt (const char **new_argv, const char *out_temp, | |
6764 | const char *err_temp, int emit_system_info, int append) | |
6765 | { | |
6766 | ||
6767 | if (emit_system_info) | |
6768 | { | |
6769 | FILE *file_out = fopen (err_temp, "a"); | |
6770 | print_configuration (file_out); | |
2782c04c | 6771 | fputs ("\n", file_out); |
a31e9496 | 6772 | fclose (file_out); |
6773 | } | |
6774 | ||
6775 | int exit_status; | |
6776 | const char *errmsg; | |
6777 | struct pex_obj *pex; | |
6778 | int err; | |
6779 | int pex_flags = PEX_USE_PIPES | PEX_LAST; | |
6780 | enum attempt_status status = ATTEMPT_STATUS_FAIL_TO_RUN; | |
6781 | ||
6782 | if (append) | |
6783 | pex_flags |= PEX_STDOUT_APPEND | PEX_STDERR_APPEND; | |
6784 | ||
6785 | pex = pex_init (PEX_USE_PIPES, new_argv[0], NULL); | |
6786 | if (!pex) | |
c05be867 | 6787 | fatal_error (input_location, "pex_init failed: %m"); |
a31e9496 | 6788 | |
6789 | errmsg = pex_run (pex, pex_flags, new_argv[0], | |
6790 | CONST_CAST2 (char *const *, const char **, &new_argv[1]), out_temp, | |
6791 | err_temp, &err); | |
d3faa4b6 | 6792 | if (errmsg != NULL) |
6793 | { | |
6794 | if (err == 0) | |
c05be867 | 6795 | fatal_error (input_location, errmsg); |
d3faa4b6 | 6796 | else |
6797 | { | |
6798 | errno = err; | |
6799 | pfatal_with_name (errmsg); | |
6800 | } | |
6801 | } | |
a31e9496 | 6802 | |
6803 | if (!pex_get_status (pex, 1, &exit_status)) | |
6804 | goto out; | |
6805 | ||
6806 | switch (WEXITSTATUS (exit_status)) | |
6807 | { | |
6808 | case ICE_EXIT_CODE: | |
6809 | status = ATTEMPT_STATUS_ICE; | |
6810 | break; | |
6811 | ||
6812 | case SUCCESS_EXIT_CODE: | |
6813 | status = ATTEMPT_STATUS_SUCCESS; | |
6814 | break; | |
6815 | ||
6816 | default: | |
6817 | ; | |
6818 | } | |
6819 | ||
6820 | out: | |
6821 | pex_free (pex); | |
6822 | return status; | |
6823 | } | |
6824 | ||
5a01908f | 6825 | /* This routine reads lines from IN file, adds C++ style comments |
6826 | at the begining of each line and writes result into OUT. */ | |
6827 | ||
6828 | static void | |
6829 | insert_comments (const char *file_in, const char *file_out) | |
6830 | { | |
6831 | FILE *in = fopen (file_in, "rb"); | |
6832 | FILE *out = fopen (file_out, "wb"); | |
6833 | char line[256]; | |
6834 | ||
6835 | bool add_comment = true; | |
6836 | while (fgets (line, sizeof (line), in)) | |
6837 | { | |
6838 | if (add_comment) | |
6839 | fputs ("// ", out); | |
6840 | fputs (line, out); | |
6841 | add_comment = strchr (line, '\n') != NULL; | |
6842 | } | |
6843 | ||
6844 | fclose (in); | |
6845 | fclose (out); | |
6846 | } | |
6847 | ||
a31e9496 | 6848 | /* This routine adds preprocessed source code into the given ERR_FILE. |
6849 | To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to | |
6850 | add information in report file. RUN_ATTEMPT should return | |
6851 | ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */ | |
6852 | ||
6853 | static void | |
6854 | do_report_bug (const char **new_argv, const int nargs, | |
6855 | char **out_file, char **err_file) | |
6856 | { | |
6857 | int i, status; | |
6858 | int fd = open (*out_file, O_RDWR | O_APPEND); | |
6859 | if (fd < 0) | |
6860 | return; | |
6861 | write (fd, "\n//", 3); | |
6862 | for (i = 0; i < nargs; i++) | |
6863 | { | |
6864 | write (fd, " ", 1); | |
6865 | write (fd, new_argv[i], strlen (new_argv[i])); | |
6866 | } | |
6867 | write (fd, "\n\n", 2); | |
6868 | close (fd); | |
6869 | new_argv[nargs] = "-E"; | |
6870 | new_argv[nargs + 1] = NULL; | |
6871 | ||
6872 | status = run_attempt (new_argv, *out_file, *err_file, 0, 1); | |
6873 | ||
6874 | if (status == ATTEMPT_STATUS_SUCCESS) | |
6875 | { | |
6876 | fnotice (stderr, "Preprocessed source stored into %s file," | |
6877 | " please attach this to your bugreport.\n", *out_file); | |
6878 | /* Make sure it is not deleted. */ | |
6879 | free (*out_file); | |
6880 | *out_file = NULL; | |
6881 | } | |
6882 | } | |
6883 | ||
a31e9496 | 6884 | /* Try to reproduce ICE. If bug is reproducible, generate report .err file |
6885 | containing GCC configuration, backtrace, compiler's command line options | |
6886 | and preprocessed source code. */ | |
6887 | ||
6888 | static void | |
d3faa4b6 | 6889 | try_generate_repro (const char **argv) |
a31e9496 | 6890 | { |
6891 | int i, nargs, out_arg = -1, quiet = 0, attempt; | |
6892 | const char **new_argv; | |
6893 | char *temp_files[RETRY_ICE_ATTEMPTS * 2]; | |
6894 | char **temp_stdout_files = &temp_files[0]; | |
6895 | char **temp_stderr_files = &temp_files[RETRY_ICE_ATTEMPTS]; | |
6896 | ||
6897 | if (gcc_input_filename == NULL || ! strcmp (gcc_input_filename, "-")) | |
6898 | return; | |
6899 | ||
6900 | for (nargs = 0; argv[nargs] != NULL; ++nargs) | |
6901 | /* Only retry compiler ICEs, not preprocessor ones. */ | |
6902 | if (! strcmp (argv[nargs], "-E")) | |
6903 | return; | |
6904 | else if (argv[nargs][0] == '-' && argv[nargs][1] == 'o') | |
6905 | { | |
6906 | if (out_arg == -1) | |
6907 | out_arg = nargs; | |
6908 | else | |
6909 | return; | |
6910 | } | |
6911 | /* If the compiler is going to output any time information, | |
6912 | it might varry between invocations. */ | |
6913 | else if (! strcmp (argv[nargs], "-quiet")) | |
6914 | quiet = 1; | |
6915 | else if (! strcmp (argv[nargs], "-ftime-report")) | |
6916 | return; | |
6917 | ||
6918 | if (out_arg == -1 || !quiet) | |
6919 | return; | |
6920 | ||
6921 | memset (temp_files, '\0', sizeof (temp_files)); | |
6922 | new_argv = XALLOCAVEC (const char *, nargs + 4); | |
6923 | memcpy (new_argv, argv, (nargs + 1) * sizeof (const char *)); | |
6924 | new_argv[nargs++] = "-frandom-seed=0"; | |
6925 | new_argv[nargs++] = "-fdump-noaddr"; | |
6926 | new_argv[nargs] = NULL; | |
6927 | if (new_argv[out_arg][2] == '\0') | |
6928 | new_argv[out_arg + 1] = "-"; | |
6929 | else | |
6930 | new_argv[out_arg] = "-o-"; | |
6931 | ||
6932 | int status; | |
6933 | for (attempt = 0; attempt < RETRY_ICE_ATTEMPTS; ++attempt) | |
6934 | { | |
6935 | int emit_system_info = 0; | |
6936 | int append = 0; | |
6937 | temp_stdout_files[attempt] = make_temp_file (".out"); | |
6938 | temp_stderr_files[attempt] = make_temp_file (".err"); | |
6939 | ||
6940 | if (attempt == RETRY_ICE_ATTEMPTS - 1) | |
6941 | { | |
6942 | append = 1; | |
6943 | emit_system_info = 1; | |
6944 | } | |
6945 | ||
a31e9496 | 6946 | status = run_attempt (new_argv, temp_stdout_files[attempt], |
6947 | temp_stderr_files[attempt], emit_system_info, | |
6948 | append); | |
6949 | ||
a31e9496 | 6950 | if (status != ATTEMPT_STATUS_ICE) |
6951 | { | |
6952 | fnotice (stderr, "The bug is not reproducible, so it is" | |
6953 | " likely a hardware or OS problem.\n"); | |
6954 | goto out; | |
6955 | } | |
6956 | } | |
6957 | ||
6958 | if (!check_repro (temp_stdout_files, temp_stderr_files)) | |
6959 | goto out; | |
6960 | ||
5a01908f | 6961 | { |
6962 | /* Insert commented out backtrace into report file. */ | |
6963 | char **stderr_commented = &temp_stdout_files[RETRY_ICE_ATTEMPTS - 1]; | |
6964 | insert_comments (temp_stderr_files[RETRY_ICE_ATTEMPTS - 1], | |
6965 | *stderr_commented); | |
6966 | ||
6967 | /* In final attempt we append compiler options and preprocesssed code to last | |
6968 | generated .out file with configuration and backtrace. */ | |
6969 | char **output = &temp_stdout_files[RETRY_ICE_ATTEMPTS - 1]; | |
6970 | do_report_bug (new_argv, nargs, stderr_commented, output); | |
6971 | } | |
a31e9496 | 6972 | |
6973 | out: | |
6974 | for (i = 0; i < RETRY_ICE_ATTEMPTS * 2; i++) | |
6975 | if (temp_files[i]) | |
6976 | { | |
6977 | unlink (temp_stdout_files[i]); | |
6978 | free (temp_stdout_files[i]); | |
6979 | } | |
6980 | } | |
6981 | ||
d7a9644e | 6982 | /* Search for a file named NAME trying various prefixes including the |
6983 | user's -B prefix and some standard ones. | |
6984 | Return the absolute file name found. If nothing is found, return NAME. */ | |
6985 | ||
e40d43cc | 6986 | static const char * |
952f0048 | 6987 | find_file (const char *name) |
d7a9644e | 6988 | { |
067277c3 | 6989 | char *newname = find_a_file (&startfile_prefixes, name, R_OK, true); |
d7a9644e | 6990 | return newname ? newname : name; |
6991 | } | |
6992 | ||
c049b2ee | 6993 | /* Determine whether a directory exists. If LINKER, return 0 for |
067277c3 | 6994 | certain fixed names not needed by the linker. */ |
d7a9644e | 6995 | |
6996 | static int | |
067277c3 | 6997 | is_directory (const char *path1, bool linker) |
d7a9644e | 6998 | { |
067277c3 | 6999 | int len1; |
7000 | char *path; | |
d7a9644e | 7001 | char *cp; |
7002 | struct stat st; | |
7003 | ||
067277c3 | 7004 | /* Ensure the string ends with "/.". The resulting path will be a |
7005 | directory even if the given path is a symbolic link. */ | |
7006 | len1 = strlen (path1); | |
25a1c410 | 7007 | path = (char *) alloca (3 + len1); |
d7e36a01 | 7008 | memcpy (path, path1, len1); |
067277c3 | 7009 | cp = path + len1; |
79b23a1e | 7010 | if (!IS_DIR_SEPARATOR (cp[-1])) |
b9374a77 | 7011 | *cp++ = DIR_SEPARATOR; |
d7a9644e | 7012 | *cp++ = '.'; |
7013 | *cp = '\0'; | |
7014 | ||
7015 | /* Exclude directories that the linker is known to search. */ | |
c049b2ee | 7016 | if (linker |
067277c3 | 7017 | && IS_DIR_SEPARATOR (path[0]) |
b9374a77 | 7018 | && ((cp - path == 6 |
82715bcd | 7019 | && filename_ncmp (path + 1, "lib", 3) == 0) |
b9374a77 | 7020 | || (cp - path == 10 |
82715bcd | 7021 | && filename_ncmp (path + 1, "usr", 3) == 0 |
067277c3 | 7022 | && IS_DIR_SEPARATOR (path[4]) |
82715bcd | 7023 | && filename_ncmp (path + 5, "lib", 3) == 0))) |
d7a9644e | 7024 | return 0; |
7025 | ||
7026 | return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode)); | |
7027 | } | |
397f1574 | 7028 | |
7029 | /* Set up the various global variables to indicate that we're processing | |
7030 | the input file named FILENAME. */ | |
7031 | ||
32d661fc | 7032 | void |
952f0048 | 7033 | set_input (const char *filename) |
397f1574 | 7034 | { |
19cb6b50 | 7035 | const char *p; |
397f1574 | 7036 | |
460b8bb3 | 7037 | gcc_input_filename = filename; |
7038 | input_filename_length = strlen (gcc_input_filename); | |
7039 | input_basename = lbasename (gcc_input_filename); | |
397f1574 | 7040 | |
7041 | /* Find a suffix starting with the last period, | |
7042 | and set basename_length to exclude that suffix. */ | |
7043 | basename_length = strlen (input_basename); | |
1cf79a1a | 7044 | suffixed_basename_length = basename_length; |
397f1574 | 7045 | p = input_basename + basename_length; |
026f2c7a | 7046 | while (p != input_basename && *p != '.') |
7047 | --p; | |
397f1574 | 7048 | if (*p == '.' && p != input_basename) |
7049 | { | |
7050 | basename_length = p - input_basename; | |
7051 | input_suffix = p + 1; | |
7052 | } | |
7053 | else | |
7054 | input_suffix = ""; | |
3cfec666 | 7055 | |
74e4079a | 7056 | /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then |
460b8bb3 | 7057 | we will need to do a stat on the gcc_input_filename. The |
74e4079a | 7058 | INPUT_STAT_SET signals that the stat is needed. */ |
7059 | input_stat_set = 0; | |
397f1574 | 7060 | } |
d7a9644e | 7061 | \f |
7062 | /* On fatal signals, delete all the temporary files. */ | |
7063 | ||
7064 | static void | |
a922df2e | 7065 | fatal_signal (int signum) |
d7a9644e | 7066 | { |
7067 | signal (signum, SIG_DFL); | |
7068 | delete_failure_queue (); | |
7069 | delete_temp_files (); | |
7070 | /* Get the same signal again, this time not handled, | |
7071 | so its normal effect occurs. */ | |
7072 | kill (getpid (), signum); | |
7073 | } | |
7074 | ||
71278019 | 7075 | /* Compare the contents of the two files named CMPFILE[0] and |
7076 | CMPFILE[1]. Return zero if they're identical, nonzero | |
7077 | otherwise. */ | |
7078 | ||
7079 | static int | |
7080 | compare_files (char *cmpfile[]) | |
7081 | { | |
7082 | int ret = 0; | |
7083 | FILE *temp[2] = { NULL, NULL }; | |
7084 | int i; | |
7085 | ||
7086 | #if HAVE_MMAP_FILE | |
7087 | { | |
7088 | size_t length[2]; | |
7089 | void *map[2] = { NULL, NULL }; | |
7090 | ||
7091 | for (i = 0; i < 2; i++) | |
7092 | { | |
7093 | struct stat st; | |
7094 | ||
7095 | if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode)) | |
7096 | { | |
7097 | error ("%s: could not determine length of compare-debug file %s", | |
460b8bb3 | 7098 | gcc_input_filename, cmpfile[i]); |
71278019 | 7099 | ret = 1; |
7100 | break; | |
7101 | } | |
7102 | ||
7103 | length[i] = st.st_size; | |
7104 | } | |
7105 | ||
7106 | if (!ret && length[0] != length[1]) | |
7107 | { | |
460b8bb3 | 7108 | error ("%s: -fcompare-debug failure (length)", gcc_input_filename); |
71278019 | 7109 | ret = 1; |
7110 | } | |
7111 | ||
7112 | if (!ret) | |
7113 | for (i = 0; i < 2; i++) | |
7114 | { | |
7115 | int fd = open (cmpfile[i], O_RDONLY); | |
7116 | if (fd < 0) | |
7117 | { | |
7118 | error ("%s: could not open compare-debug file %s", | |
460b8bb3 | 7119 | gcc_input_filename, cmpfile[i]); |
71278019 | 7120 | ret = 1; |
7121 | break; | |
7122 | } | |
7123 | ||
7124 | map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0); | |
7125 | close (fd); | |
7126 | ||
7127 | if (map[i] == (void *) MAP_FAILED) | |
7128 | { | |
7129 | ret = -1; | |
7130 | break; | |
7131 | } | |
7132 | } | |
7133 | ||
7134 | if (!ret) | |
7135 | { | |
7136 | if (memcmp (map[0], map[1], length[0]) != 0) | |
7137 | { | |
460b8bb3 | 7138 | error ("%s: -fcompare-debug failure", gcc_input_filename); |
71278019 | 7139 | ret = 1; |
7140 | } | |
7141 | } | |
7142 | ||
7143 | for (i = 0; i < 2; i++) | |
7144 | if (map[i]) | |
7a63ab96 | 7145 | munmap ((caddr_t) map[i], length[i]); |
71278019 | 7146 | |
7147 | if (ret >= 0) | |
7148 | return ret; | |
7149 | ||
7150 | ret = 0; | |
7151 | } | |
7152 | #endif | |
7153 | ||
7154 | for (i = 0; i < 2; i++) | |
7155 | { | |
7156 | temp[i] = fopen (cmpfile[i], "r"); | |
7157 | if (!temp[i]) | |
7158 | { | |
7159 | error ("%s: could not open compare-debug file %s", | |
460b8bb3 | 7160 | gcc_input_filename, cmpfile[i]); |
71278019 | 7161 | ret = 1; |
7162 | break; | |
7163 | } | |
7164 | } | |
7165 | ||
7166 | if (!ret && temp[0] && temp[1]) | |
7167 | for (;;) | |
7168 | { | |
7169 | int c0, c1; | |
7170 | c0 = fgetc (temp[0]); | |
7171 | c1 = fgetc (temp[1]); | |
7172 | ||
7173 | if (c0 != c1) | |
7174 | { | |
7175 | error ("%s: -fcompare-debug failure", | |
460b8bb3 | 7176 | gcc_input_filename); |
71278019 | 7177 | ret = 1; |
7178 | break; | |
7179 | } | |
7180 | ||
7181 | if (c0 == EOF) | |
7182 | break; | |
7183 | } | |
7184 | ||
7185 | for (i = 1; i >= 0; i--) | |
7186 | { | |
7187 | if (temp[i]) | |
7188 | fclose (temp[i]); | |
7189 | } | |
7190 | ||
7191 | return ret; | |
7192 | } | |
7193 | ||
26a4a13d | 7194 | driver::driver (bool can_finalize, bool debug) : |
7195 | explicit_link_files (NULL), | |
da7d5066 | 7196 | decoded_options (NULL), |
7197 | m_option_suggestions (NULL) | |
26a4a13d | 7198 | { |
7199 | env.init (can_finalize, debug); | |
7200 | } | |
7201 | ||
7202 | driver::~driver () | |
7203 | { | |
7204 | XDELETEVEC (explicit_link_files); | |
7205 | XDELETEVEC (decoded_options); | |
da7d5066 | 7206 | if (m_option_suggestions) |
7207 | { | |
7208 | int i; | |
7209 | char *str; | |
7210 | FOR_EACH_VEC_ELT (*m_option_suggestions, i, str) | |
7211 | free (str); | |
7212 | delete m_option_suggestions; | |
7213 | } | |
26a4a13d | 7214 | } |
7215 | ||
cf8104ca | 7216 | /* driver::main is implemented as a series of driver:: method calls. */ |
7217 | ||
7218 | int | |
7219 | driver::main (int argc, char **argv) | |
7220 | { | |
7221 | bool early_exit; | |
7222 | ||
7223 | set_progname (argv[0]); | |
7224 | expand_at_files (&argc, &argv); | |
7225 | decode_argv (argc, const_cast <const char **> (argv)); | |
7226 | global_initializations (); | |
7227 | build_multilib_strings (); | |
7228 | set_up_specs (); | |
7229 | putenv_COLLECT_GCC (argv[0]); | |
7230 | maybe_putenv_COLLECT_LTO_WRAPPER (); | |
77415571 | 7231 | maybe_putenv_OFFLOAD_TARGETS (); |
cf8104ca | 7232 | handle_unrecognized_options (); |
7233 | ||
7234 | if (!maybe_print_and_exit ()) | |
7235 | return 0; | |
7236 | ||
7237 | early_exit = prepare_infiles (); | |
7238 | if (early_exit) | |
7239 | return get_exit_code (); | |
7240 | ||
7241 | do_spec_on_infiles (); | |
7242 | maybe_run_linker (argv[0]); | |
7243 | final_actions (); | |
7244 | return get_exit_code (); | |
7245 | } | |
7246 | ||
7247 | /* Locate the final component of argv[0] after any leading path, and set | |
7248 | the program name accordingly. */ | |
7249 | ||
7250 | void | |
7251 | driver::set_progname (const char *argv0) const | |
7252 | { | |
7253 | const char *p = argv0 + strlen (argv0); | |
7254 | while (p != argv0 && !IS_DIR_SEPARATOR (p[-1])) | |
79b23a1e | 7255 | --p; |
460b8bb3 | 7256 | progname = p; |
d7a9644e | 7257 | |
460b8bb3 | 7258 | xmalloc_set_program_name (progname); |
cf8104ca | 7259 | } |
6deeea15 | 7260 | |
cf8104ca | 7261 | /* Expand any @ files within the command-line args, |
7262 | setting at_file_supplied if any were expanded. */ | |
7263 | ||
7264 | void | |
7265 | driver::expand_at_files (int *argc, char ***argv) const | |
7266 | { | |
7267 | char **old_argv = *argv; | |
7268 | ||
7269 | expandargv (argc, argv); | |
64271450 | 7270 | |
c159e0b7 | 7271 | /* Determine if any expansions were made. */ |
cf8104ca | 7272 | if (*argv != old_argv) |
c159e0b7 | 7273 | at_file_supplied = true; |
cf8104ca | 7274 | } |
c159e0b7 | 7275 | |
cf8104ca | 7276 | /* Decode the command-line arguments from argc/argv into the |
7277 | decoded_options array. */ | |
7278 | ||
7279 | void | |
7280 | driver::decode_argv (int argc, const char **argv) | |
7281 | { | |
90336809 | 7282 | /* Register the language-independent parameters. */ |
7283 | global_init_params (); | |
7284 | finish_params (); | |
7285 | ||
0da03143 | 7286 | init_opts_obstack (); |
90336809 | 7287 | init_options_struct (&global_options, &global_options_set); |
f3f006ad | 7288 | |
cf8104ca | 7289 | decode_cmdline_options_to_array (argc, argv, |
e62df35b | 7290 | CL_DRIVER, |
7291 | &decoded_options, &decoded_options_count); | |
cf8104ca | 7292 | } |
7293 | ||
7294 | /* Perform various initializations and setup. */ | |
a1baa5f1 | 7295 | |
cf8104ca | 7296 | void |
408ebd8b | 7297 | driver::global_initializations () |
cf8104ca | 7298 | { |
4367c81f | 7299 | /* Unlock the stdio streams. */ |
9c8f076b | 7300 | unlock_std_streams (); |
4367c81f | 7301 | |
eb718689 | 7302 | gcc_init_libintl (); |
be2828ce | 7303 | |
460b8bb3 | 7304 | diagnostic_initialize (global_dc, 0); |
9b11544d | 7305 | diagnostic_color_init (global_dc); |
2cdbb326 | 7306 | |
7307 | #ifdef GCC_DRIVER_HOST_INITIALIZATION | |
7308 | /* Perform host dependent initialization when needed. */ | |
7309 | GCC_DRIVER_HOST_INITIALIZATION; | |
7310 | #endif | |
7311 | ||
460b8bb3 | 7312 | if (atexit (delete_temp_files) != 0) |
c05be867 | 7313 | fatal_error (input_location, "atexit failed"); |
460b8bb3 | 7314 | |
d7a9644e | 7315 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) |
a922df2e | 7316 | signal (SIGINT, fatal_signal); |
294a029f | 7317 | #ifdef SIGHUP |
d7a9644e | 7318 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) |
a922df2e | 7319 | signal (SIGHUP, fatal_signal); |
294a029f | 7320 | #endif |
d7a9644e | 7321 | if (signal (SIGTERM, SIG_IGN) != SIG_IGN) |
a922df2e | 7322 | signal (SIGTERM, fatal_signal); |
d7a9644e | 7323 | #ifdef SIGPIPE |
7324 | if (signal (SIGPIPE, SIG_IGN) != SIG_IGN) | |
a922df2e | 7325 | signal (SIGPIPE, fatal_signal); |
d7a9644e | 7326 | #endif |
6b917287 | 7327 | #ifdef SIGCHLD |
1a3768bc | 7328 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will |
7329 | receive the signal. A different setting is inheritable */ | |
7330 | signal (SIGCHLD, SIG_DFL); | |
6b917287 | 7331 | #endif |
d7a9644e | 7332 | |
00dacc40 | 7333 | /* Parsing and gimplification sometimes need quite large stack. |
7334 | Increase stack size limits if possible. */ | |
7335 | stack_limit_increase (64 * 1024 * 1024); | |
7336 | ||
c21b3276 | 7337 | /* Allocate the argument vector. */ |
7338 | alloc_args (); | |
d7a9644e | 7339 | |
7340 | obstack_init (&obstack); | |
cf8104ca | 7341 | } |
7342 | ||
7343 | /* Build multilib_select, et. al from the separate lines that make up each | |
7344 | multilib selection. */ | |
d7a9644e | 7345 | |
cf8104ca | 7346 | void |
7347 | driver::build_multilib_strings () const | |
7348 | { | |
709c4e1b | 7349 | { |
cf8104ca | 7350 | const char *p; |
e772a198 | 7351 | const char *const *q = multilib_raw; |
3d97d965 | 7352 | int need_space; |
709c4e1b | 7353 | |
7354 | obstack_init (&multilib_obstack); | |
a92771b8 | 7355 | while ((p = *q++) != (char *) 0) |
709c4e1b | 7356 | obstack_grow (&multilib_obstack, p, strlen (p)); |
7357 | ||
7358 | obstack_1grow (&multilib_obstack, 0); | |
4fac984f | 7359 | multilib_select = XOBFINISH (&multilib_obstack, const char *); |
3d97d965 | 7360 | |
7361 | q = multilib_matches_raw; | |
7362 | while ((p = *q++) != (char *) 0) | |
7363 | obstack_grow (&multilib_obstack, p, strlen (p)); | |
7364 | ||
7365 | obstack_1grow (&multilib_obstack, 0); | |
4fac984f | 7366 | multilib_matches = XOBFINISH (&multilib_obstack, const char *); |
3d97d965 | 7367 | |
54518c3b | 7368 | q = multilib_exclusions_raw; |
7369 | while ((p = *q++) != (char *) 0) | |
026f2c7a | 7370 | obstack_grow (&multilib_obstack, p, strlen (p)); |
54518c3b | 7371 | |
7372 | obstack_1grow (&multilib_obstack, 0); | |
4fac984f | 7373 | multilib_exclusions = XOBFINISH (&multilib_obstack, const char *); |
2c815aff | 7374 | |
7137cdac | 7375 | q = multilib_reuse_raw; |
7376 | while ((p = *q++) != (char *) 0) | |
7377 | obstack_grow (&multilib_obstack, p, strlen (p)); | |
7378 | ||
7379 | obstack_1grow (&multilib_obstack, 0); | |
7380 | multilib_reuse = XOBFINISH (&multilib_obstack, const char *); | |
7381 | ||
3d97d965 | 7382 | need_space = FALSE; |
cf8104ca | 7383 | for (size_t i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++) |
3d97d965 | 7384 | { |
7385 | if (need_space) | |
7386 | obstack_1grow (&multilib_obstack, ' '); | |
7387 | obstack_grow (&multilib_obstack, | |
7388 | multilib_defaults_raw[i], | |
7389 | strlen (multilib_defaults_raw[i])); | |
7390 | need_space = TRUE; | |
7391 | } | |
7392 | ||
7393 | obstack_1grow (&multilib_obstack, 0); | |
4fac984f | 7394 | multilib_defaults = XOBFINISH (&multilib_obstack, const char *); |
709c4e1b | 7395 | } |
cf8104ca | 7396 | } |
7397 | ||
7398 | /* Set up the spec-handling machinery. */ | |
7399 | ||
7400 | void | |
7401 | driver::set_up_specs () const | |
7402 | { | |
77415571 | 7403 | const char *spec_machine_suffix; |
cf8104ca | 7404 | char *specs_file; |
7405 | size_t i; | |
709c4e1b | 7406 | |
bba01ba8 | 7407 | #ifdef INIT_ENVIRONMENT |
7408 | /* Set up any other necessary machine specific environment variables. */ | |
99c00302 | 7409 | xputenv (INIT_ENVIRONMENT); |
bba01ba8 | 7410 | #endif |
7411 | ||
d7a9644e | 7412 | /* Make a table of what switches there are (switches, n_switches). |
7413 | Make a table of specified input files (infiles, n_infiles). | |
7414 | Decode switches that are handled locally. */ | |
7415 | ||
e62df35b | 7416 | process_command (decoded_options_count, decoded_options); |
d7a9644e | 7417 | |
7418 | /* Initialize the vector of specs to just the default. | |
7419 | This means one element containing 0s, as a terminator. */ | |
7420 | ||
25a1c410 | 7421 | compilers = XNEWVAR (struct compiler, sizeof default_compilers); |
f0af5a88 | 7422 | memcpy (compilers, default_compilers, sizeof default_compilers); |
d7a9644e | 7423 | n_compilers = n_default_compilers; |
7424 | ||
7425 | /* Read specs from a file if there is one. */ | |
7426 | ||
77415571 | 7427 | machine_suffix = concat (spec_host_machine, dir_separator_str, spec_version, |
7428 | accel_dir_suffix, dir_separator_str, NULL); | |
4e2023c8 | 7429 | just_machine_suffix = concat (spec_machine, dir_separator_str, NULL); |
d7a9644e | 7430 | |
067277c3 | 7431 | specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true); |
d7a9644e | 7432 | /* Read the specs file unless it is a default one. */ |
7433 | if (specs_file != 0 && strcmp (specs_file, "specs")) | |
556cfe53 | 7434 | read_specs (specs_file, true, false); |
4582d741 | 7435 | else |
7436 | init_spec (); | |
8b351d3c | 7437 | |
77415571 | 7438 | #ifdef ACCEL_COMPILER |
7439 | spec_machine_suffix = machine_suffix; | |
7440 | #else | |
7441 | spec_machine_suffix = just_machine_suffix; | |
7442 | #endif | |
7443 | ||
7444 | /* We need to check standard_exec_prefix/spec_machine_suffix/specs | |
d4ea3b1f | 7445 | for any override of as, ld and libraries. */ |
25a1c410 | 7446 | specs_file = (char *) alloca (strlen (standard_exec_prefix) |
77415571 | 7447 | + strlen (spec_machine_suffix) + sizeof ("specs")); |
c71f4af0 | 7448 | strcpy (specs_file, standard_exec_prefix); |
77415571 | 7449 | strcat (specs_file, spec_machine_suffix); |
c71f4af0 | 7450 | strcat (specs_file, "specs"); |
7451 | if (access (specs_file, R_OK) == 0) | |
556cfe53 | 7452 | read_specs (specs_file, true, false); |
2c815aff | 7453 | |
7dd97ab6 | 7454 | /* Process any configure-time defaults specified for the command line |
7455 | options, via OPTION_DEFAULT_SPECS. */ | |
7456 | for (i = 0; i < ARRAY_SIZE (option_default_specs); i++) | |
7457 | do_option_spec (option_default_specs[i].name, | |
7458 | option_default_specs[i].spec); | |
7459 | ||
d0faeb9d | 7460 | /* Process DRIVER_SELF_SPECS, adding any new options to the end |
7461 | of the command line. */ | |
7462 | ||
7463 | for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++) | |
7464 | do_self_spec (driver_self_specs[i]); | |
7465 | ||
805e22b2 | 7466 | /* If not cross-compiling, look for executables in the standard |
7467 | places. */ | |
7468 | if (*cross_compile == '0') | |
a45072dd | 7469 | { |
bfb9bc39 | 7470 | if (*md_exec_prefix) |
7471 | { | |
7472 | add_prefix (&exec_prefixes, md_exec_prefix, "GCC", | |
2af84186 | 7473 | PREFIX_PRIORITY_LAST, 0, 0); |
bfb9bc39 | 7474 | } |
805e22b2 | 7475 | } |
7476 | ||
6473f3f4 | 7477 | /* Process sysroot_suffix_spec. */ |
4ea70922 | 7478 | if (*sysroot_suffix_spec != 0 |
70eb49f5 | 7479 | && !no_sysroot_suffix |
4ea70922 | 7480 | && do_spec_2 (sysroot_suffix_spec) == 0) |
7481 | { | |
f1f41a6c | 7482 | if (argbuf.length () > 1) |
0a81f5a0 | 7483 | error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC"); |
f1f41a6c | 7484 | else if (argbuf.length () == 1) |
7485 | target_sysroot_suffix = xstrdup (argbuf.last ()); | |
4ea70922 | 7486 | } |
7487 | ||
b6bcc48f | 7488 | #ifdef HAVE_LD_SYSROOT |
7489 | /* Pass the --sysroot option to the linker, if it supports that. If | |
7490 | there is a sysroot_suffix_spec, it has already been processed by | |
7491 | this point, so target_system_root really is the system root we | |
7492 | should be using. */ | |
7493 | if (target_system_root) | |
7494 | { | |
7495 | obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) ")); | |
7496 | obstack_grow0 (&obstack, link_spec, strlen (link_spec)); | |
556cfe53 | 7497 | set_spec ("link", XOBFINISH (&obstack, const char *), false); |
b6bcc48f | 7498 | } |
7499 | #endif | |
7500 | ||
6473f3f4 | 7501 | /* Process sysroot_hdrs_suffix_spec. */ |
4ea70922 | 7502 | if (*sysroot_hdrs_suffix_spec != 0 |
70eb49f5 | 7503 | && !no_sysroot_suffix |
4ea70922 | 7504 | && do_spec_2 (sysroot_hdrs_suffix_spec) == 0) |
7505 | { | |
f1f41a6c | 7506 | if (argbuf.length () > 1) |
0a81f5a0 | 7507 | error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC"); |
f1f41a6c | 7508 | else if (argbuf.length () == 1) |
7509 | target_sysroot_hdrs_suffix = xstrdup (argbuf.last ()); | |
4ea70922 | 7510 | } |
7511 | ||
805e22b2 | 7512 | /* Look for startfiles in the standard places. */ |
7513 | if (*startfile_prefix_spec != 0 | |
7514 | && do_spec_2 (startfile_prefix_spec) == 0 | |
7515 | && do_spec_1 (" ", 0, NULL) == 0) | |
7516 | { | |
9d9edc85 | 7517 | const char *arg; |
805e22b2 | 7518 | int ndx; |
f1f41a6c | 7519 | FOR_EACH_VEC_ELT (argbuf, ndx, arg) |
9d9edc85 | 7520 | add_sysrooted_prefix (&startfile_prefixes, arg, "BINUTILS", |
2af84186 | 7521 | PREFIX_PRIORITY_LAST, 0, 1); |
805e22b2 | 7522 | } |
7523 | /* We should eventually get rid of all these and stick to | |
7524 | startfile_prefix_spec exclusively. */ | |
7525 | else if (*cross_compile == '0' || target_system_root) | |
7526 | { | |
bfb9bc39 | 7527 | if (*md_startfile_prefix) |
805e22b2 | 7528 | add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix, |
2af84186 | 7529 | "GCC", PREFIX_PRIORITY_LAST, 0, 1); |
a45072dd | 7530 | |
bfb9bc39 | 7531 | if (*md_startfile_prefix_1) |
805e22b2 | 7532 | add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1, |
2af84186 | 7533 | "GCC", PREFIX_PRIORITY_LAST, 0, 1); |
1121f96b | 7534 | |
86e5f097 | 7535 | /* If standard_startfile_prefix is relative, base it on |
7536 | standard_exec_prefix. This lets us move the installed tree | |
7537 | as a unit. If GCC_EXEC_PREFIX is defined, base | |
1fbb4a86 | 7538 | standard_startfile_prefix on that as well. |
7539 | ||
7540 | If the prefix is relative, only search it for native compilers; | |
7541 | otherwise we will search a directory containing host libraries. */ | |
a5c088d4 | 7542 | if (IS_ABSOLUTE_PATH (standard_startfile_prefix)) |
805e22b2 | 7543 | add_sysrooted_prefix (&startfile_prefixes, |
7544 | standard_startfile_prefix, "BINUTILS", | |
2af84186 | 7545 | PREFIX_PRIORITY_LAST, 0, 1); |
1fbb4a86 | 7546 | else if (*cross_compile == '0') |
86e5f097 | 7547 | { |
b9374a77 | 7548 | add_prefix (&startfile_prefixes, |
48e1416a | 7549 | concat (gcc_exec_prefix |
7550 | ? gcc_exec_prefix : standard_exec_prefix, | |
7551 | machine_suffix, | |
4e2023c8 | 7552 | standard_startfile_prefix, NULL), |
2af84186 | 7553 | NULL, PREFIX_PRIORITY_LAST, 0, 1); |
2c815aff | 7554 | } |
86e5f097 | 7555 | |
c4328bcc | 7556 | /* Sysrooted prefixes are relocated because target_system_root is |
7557 | also relocated by gcc_exec_prefix. */ | |
3c2ba0de | 7558 | if (*standard_startfile_prefix_1) |
7559 | add_sysrooted_prefix (&startfile_prefixes, | |
7560 | standard_startfile_prefix_1, "BINUTILS", | |
2af84186 | 7561 | PREFIX_PRIORITY_LAST, 0, 1); |
3c2ba0de | 7562 | if (*standard_startfile_prefix_2) |
7563 | add_sysrooted_prefix (&startfile_prefixes, | |
7564 | standard_startfile_prefix_2, "BINUTILS", | |
2af84186 | 7565 | PREFIX_PRIORITY_LAST, 0, 1); |
a45072dd | 7566 | } |
4ae4e5e8 | 7567 | |
c15af0eb | 7568 | /* Process any user specified specs in the order given on the command |
7569 | line. */ | |
cf8104ca | 7570 | for (struct user_specs *uptr = user_specs_head; uptr; uptr = uptr->next) |
c15af0eb | 7571 | { |
c954ff02 | 7572 | char *filename = find_a_file (&startfile_prefixes, uptr->filename, |
067277c3 | 7573 | R_OK, true); |
556cfe53 | 7574 | read_specs (filename ? filename : uptr->filename, false, true); |
c15af0eb | 7575 | } |
7576 | ||
bd3ce038 | 7577 | /* Process any user self specs. */ |
7578 | { | |
7579 | struct spec_list *sl; | |
7580 | for (sl = specs; sl; sl = sl->next) | |
7581 | if (sl->name_len == sizeof "self_spec" - 1 | |
7582 | && !strcmp (sl->name, "self_spec")) | |
7583 | do_self_spec (*sl->ptr_spec); | |
7584 | } | |
7585 | ||
7586 | if (compare_debug) | |
7587 | { | |
7588 | enum save_temps save; | |
7589 | ||
7590 | if (!compare_debug_second) | |
7591 | { | |
7592 | n_switches_debug_check[1] = n_switches; | |
7593 | n_switches_alloc_debug_check[1] = n_switches_alloc; | |
7594 | switches_debug_check[1] = XDUPVEC (struct switchstr, switches, | |
7595 | n_switches_alloc); | |
7596 | ||
7597 | do_self_spec ("%:compare-debug-self-opt()"); | |
7598 | n_switches_debug_check[0] = n_switches; | |
7599 | n_switches_alloc_debug_check[0] = n_switches_alloc; | |
7600 | switches_debug_check[0] = switches; | |
7601 | ||
7602 | n_switches = n_switches_debug_check[1]; | |
7603 | n_switches_alloc = n_switches_alloc_debug_check[1]; | |
7604 | switches = switches_debug_check[1]; | |
7605 | } | |
7606 | ||
7607 | /* Avoid crash when computing %j in this early. */ | |
7608 | save = save_temps_flag; | |
7609 | save_temps_flag = SAVE_TEMPS_NONE; | |
7610 | ||
7611 | compare_debug = -compare_debug; | |
7612 | do_self_spec ("%:compare-debug-self-opt()"); | |
7613 | ||
7614 | save_temps_flag = save; | |
7615 | ||
7616 | if (!compare_debug_second) | |
7617 | { | |
7618 | n_switches_debug_check[1] = n_switches; | |
7619 | n_switches_alloc_debug_check[1] = n_switches_alloc; | |
7620 | switches_debug_check[1] = switches; | |
7621 | compare_debug = -compare_debug; | |
7622 | n_switches = n_switches_debug_check[0]; | |
7623 | n_switches_alloc = n_switches_debug_check[0]; | |
7624 | switches = switches_debug_check[0]; | |
7625 | } | |
7626 | } | |
7627 | ||
7628 | ||
533d7727 | 7629 | /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */ |
7630 | if (gcc_exec_prefix) | |
77415571 | 7631 | gcc_exec_prefix = concat (gcc_exec_prefix, spec_host_machine, |
7632 | dir_separator_str, spec_version, | |
7633 | accel_dir_suffix, dir_separator_str, NULL); | |
a45072dd | 7634 | |
d7a9644e | 7635 | /* Now we have the specs. |
7636 | Set the `valid' bits for switches that match anything in any spec. */ | |
7637 | ||
7638 | validate_all_switches (); | |
7639 | ||
9577d478 | 7640 | /* Now that we have the switches and the specs, set |
7641 | the subdirectory based on the options. */ | |
7642 | set_multilib_dir (); | |
cf8104ca | 7643 | } |
7644 | ||
7645 | /* Set up to remember the pathname of gcc and any options | |
7646 | needed for collect. We use argv[0] instead of progname because | |
7647 | we need the complete pathname. */ | |
9577d478 | 7648 | |
cf8104ca | 7649 | void |
7650 | driver::putenv_COLLECT_GCC (const char *argv0) const | |
7651 | { | |
7bfefa9d | 7652 | obstack_init (&collect_obstack); |
7653 | obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1); | |
cf8104ca | 7654 | obstack_grow (&collect_obstack, argv0, strlen (argv0) + 1); |
7bfefa9d | 7655 | xputenv (XOBFINISH (&collect_obstack, char *)); |
cf8104ca | 7656 | } |
7bfefa9d | 7657 | |
cf8104ca | 7658 | /* Set up to remember the pathname of the lto wrapper. */ |
7659 | ||
7660 | void | |
7661 | driver::maybe_putenv_COLLECT_LTO_WRAPPER () const | |
7662 | { | |
7663 | char *lto_wrapper_file; | |
7bfefa9d | 7664 | |
1d784785 | 7665 | if (have_c) |
7666 | lto_wrapper_file = NULL; | |
7667 | else | |
7668 | lto_wrapper_file = find_a_file (&exec_prefixes, "lto-wrapper", | |
7669 | X_OK, false); | |
a1051b02 | 7670 | if (lto_wrapper_file) |
7bfefa9d | 7671 | { |
40c059b1 | 7672 | lto_wrapper_file = convert_white_space (lto_wrapper_file); |
a1051b02 | 7673 | lto_wrapper_spec = lto_wrapper_file; |
7bfefa9d | 7674 | obstack_init (&collect_obstack); |
7675 | obstack_grow (&collect_obstack, "COLLECT_LTO_WRAPPER=", | |
7676 | sizeof ("COLLECT_LTO_WRAPPER=") - 1); | |
7677 | obstack_grow (&collect_obstack, lto_wrapper_spec, | |
7678 | strlen (lto_wrapper_spec) + 1); | |
7679 | xputenv (XOBFINISH (&collect_obstack, char *)); | |
7680 | } | |
7681 | ||
cf8104ca | 7682 | } |
d7a9644e | 7683 | |
77415571 | 7684 | /* Set up to remember the names of offload targets. */ |
7685 | ||
7686 | void | |
7687 | driver::maybe_putenv_OFFLOAD_TARGETS () const | |
7688 | { | |
daa8f58f | 7689 | if (offload_targets && offload_targets[0] != '\0') |
77415571 | 7690 | { |
7691 | obstack_grow (&collect_obstack, "OFFLOAD_TARGET_NAMES=", | |
7692 | sizeof ("OFFLOAD_TARGET_NAMES=") - 1); | |
daa8f58f | 7693 | obstack_grow (&collect_obstack, offload_targets, |
7694 | strlen (offload_targets) + 1); | |
77415571 | 7695 | xputenv (XOBFINISH (&collect_obstack, char *)); |
7696 | } | |
38e21583 | 7697 | |
7698 | free (offload_targets); | |
daa8f58f | 7699 | offload_targets = NULL; |
77415571 | 7700 | } |
7701 | ||
da7d5066 | 7702 | /* Helper function for driver::suggest_option. Populate |
7703 | m_option_suggestions with candidate strings for misspelled options. | |
7704 | The strings will be freed by the driver's dtor. */ | |
b279775f | 7705 | |
da7d5066 | 7706 | void |
7707 | driver::build_option_suggestions (void) | |
b279775f | 7708 | { |
da7d5066 | 7709 | gcc_assert (m_option_suggestions == NULL); |
7710 | m_option_suggestions = new auto_vec <char *> (); | |
7711 | ||
7712 | /* We build a vec of m_option_suggestions, using add_misspelling_candidates | |
7713 | to add copies of strings, without a leading dash. */ | |
b279775f | 7714 | |
7715 | for (unsigned int i = 0; i < cl_options_count; i++) | |
7716 | { | |
da7d5066 | 7717 | const struct cl_option *option = &cl_options[i]; |
7718 | const char *opt_text = option->opt_text; | |
7719 | switch (i) | |
b279775f | 7720 | { |
da7d5066 | 7721 | default: |
7722 | if (option->var_type == CLVC_ENUM) | |
7723 | { | |
7724 | const struct cl_enum *e = &cl_enums[option->var_enum]; | |
7725 | for (unsigned j = 0; e->values[j].arg != NULL; j++) | |
7726 | { | |
7727 | char *with_arg = concat (opt_text, e->values[j].arg, NULL); | |
413c4f6c | 7728 | add_misspelling_candidates (m_option_suggestions, option, |
7729 | with_arg); | |
da7d5066 | 7730 | free (with_arg); |
7731 | } | |
7732 | } | |
7733 | else | |
413c4f6c | 7734 | add_misspelling_candidates (m_option_suggestions, option, |
7735 | opt_text); | |
da7d5066 | 7736 | break; |
7737 | ||
7738 | case OPT_fsanitize_: | |
7739 | case OPT_fsanitize_recover_: | |
7740 | /* -fsanitize= and -fsanitize-recover= can take | |
7741 | a comma-separated list of arguments. Given that combinations | |
7742 | are supported, we can't add all potential candidates to the | |
7743 | vec, but if we at least add them individually without commas, | |
7744 | we should do a better job e.g. correcting | |
7745 | "-sanitize=address" | |
7746 | to | |
7747 | "-fsanitize=address" | |
7748 | rather than to "-Wframe-address" (PR driver/69265). */ | |
7749 | { | |
7750 | for (int j = 0; sanitizer_opts[j].name != NULL; ++j) | |
7751 | { | |
28202b38 | 7752 | struct cl_option optb; |
7753 | /* -fsanitize=all is not valid, only -fno-sanitize=all. | |
7754 | So don't register the positive misspelling candidates | |
7755 | for it. */ | |
7756 | if (sanitizer_opts[j].flag == ~0U && i == OPT_fsanitize_) | |
7757 | { | |
7758 | optb = *option; | |
7759 | optb.opt_text = opt_text = "-fno-sanitize="; | |
7760 | optb.cl_reject_negative = true; | |
7761 | option = &optb; | |
7762 | } | |
da7d5066 | 7763 | /* Get one arg at a time e.g. "-fsanitize=address". */ |
7764 | char *with_arg = concat (opt_text, | |
7765 | sanitizer_opts[j].name, | |
7766 | NULL); | |
7767 | /* Add with_arg and all of its variant spellings e.g. | |
7768 | "-fno-sanitize=address" to candidates (albeit without | |
7769 | leading dashes). */ | |
413c4f6c | 7770 | add_misspelling_candidates (m_option_suggestions, option, |
7771 | with_arg); | |
da7d5066 | 7772 | free (with_arg); |
7773 | } | |
7774 | } | |
7775 | break; | |
b279775f | 7776 | } |
7777 | } | |
da7d5066 | 7778 | } |
b279775f | 7779 | |
da7d5066 | 7780 | /* Helper function for driver::handle_unrecognized_options. |
b279775f | 7781 | |
da7d5066 | 7782 | Given an unrecognized option BAD_OPT (without the leading dash), |
7783 | locate the closest reasonable matching option (again, without the | |
7784 | leading dash), or NULL. | |
7785 | ||
7786 | The returned string is owned by the driver instance. */ | |
b279775f | 7787 | |
da7d5066 | 7788 | const char * |
7789 | driver::suggest_option (const char *bad_opt) | |
7790 | { | |
7791 | /* Lazily populate m_option_suggestions. */ | |
7792 | if (!m_option_suggestions) | |
7793 | build_option_suggestions (); | |
7794 | gcc_assert (m_option_suggestions); | |
7795 | ||
7796 | /* "m_option_suggestions" is now populated. Use it. */ | |
7797 | return find_closest_string | |
7798 | (bad_opt, | |
7799 | (auto_vec <const char *> *) m_option_suggestions); | |
b279775f | 7800 | } |
7801 | ||
cf8104ca | 7802 | /* Reject switches that no pass was interested in. */ |
7803 | ||
7804 | void | |
da7d5066 | 7805 | driver::handle_unrecognized_options () |
cf8104ca | 7806 | { |
7807 | for (size_t i = 0; (int) i < n_switches; i++) | |
be2828ce | 7808 | if (! switches[i].validated) |
b279775f | 7809 | { |
7810 | const char *hint = suggest_option (switches[i].part1); | |
7811 | if (hint) | |
7812 | error ("unrecognized command line option %<-%s%>;" | |
7813 | " did you mean %<-%s%>?", | |
7814 | switches[i].part1, hint); | |
7815 | else | |
7816 | error ("unrecognized command line option %<-%s%>", | |
7817 | switches[i].part1); | |
7818 | } | |
cf8104ca | 7819 | } |
d7a9644e | 7820 | |
cf8104ca | 7821 | /* Handle the various -print-* options, returning 0 if the driver |
7822 | should exit, or nonzero if the driver should continue. */ | |
1c1a1c70 | 7823 | |
cf8104ca | 7824 | int |
7825 | driver::maybe_print_and_exit () const | |
7826 | { | |
71cee7b1 | 7827 | if (print_search_dirs) |
7828 | { | |
c4328bcc | 7829 | printf (_("install: %s%s\n"), |
7830 | gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix, | |
7831 | gcc_exec_prefix ? "" : machine_suffix); | |
067277c3 | 7832 | printf (_("programs: %s\n"), |
7833 | build_search_list (&exec_prefixes, "", false, false)); | |
7834 | printf (_("libraries: %s\n"), | |
7835 | build_search_list (&startfile_prefixes, "", false, true)); | |
7f0b0c27 | 7836 | return (0); |
71cee7b1 | 7837 | } |
7838 | ||
1c1a1c70 | 7839 | if (print_file_name) |
5e3dea2b | 7840 | { |
1c1a1c70 | 7841 | printf ("%s\n", find_file (print_file_name)); |
7f0b0c27 | 7842 | return (0); |
5e3dea2b | 7843 | } |
7844 | ||
1c1a1c70 | 7845 | if (print_prog_name) |
7846 | { | |
c75e4990 | 7847 | if (use_ld != NULL && ! strcmp (print_prog_name, "ld")) |
7848 | { | |
47ae02b7 | 7849 | /* Append USE_LD to the default linker. */ |
c75e4990 | 7850 | #ifdef DEFAULT_LINKER |
7851 | char *ld; | |
7852 | # ifdef HAVE_HOST_EXECUTABLE_SUFFIX | |
7853 | int len = (sizeof (DEFAULT_LINKER) | |
7854 | - sizeof (HOST_EXECUTABLE_SUFFIX)); | |
7855 | ld = NULL; | |
7856 | if (len > 0) | |
7857 | { | |
7858 | char *default_linker = xstrdup (DEFAULT_LINKER); | |
7859 | /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains | |
7860 | HOST_EXECUTABLE_SUFFIX. */ | |
7861 | if (! strcmp (&default_linker[len], HOST_EXECUTABLE_SUFFIX)) | |
7862 | { | |
7863 | default_linker[len] = '\0'; | |
7864 | ld = concat (default_linker, use_ld, | |
7865 | HOST_EXECUTABLE_SUFFIX, NULL); | |
7866 | } | |
7867 | } | |
7868 | if (ld == NULL) | |
7869 | # endif | |
7870 | ld = concat (DEFAULT_LINKER, use_ld, NULL); | |
7871 | if (access (ld, X_OK) == 0) | |
7872 | { | |
7873 | printf ("%s\n", ld); | |
7874 | return (0); | |
7875 | } | |
7876 | #endif | |
7877 | print_prog_name = concat (print_prog_name, use_ld, NULL); | |
7878 | } | |
c954ff02 | 7879 | char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0); |
1c1a1c70 | 7880 | printf ("%s\n", (newname ? newname : print_prog_name)); |
7f0b0c27 | 7881 | return (0); |
1c1a1c70 | 7882 | } |
d7a9644e | 7883 | |
9577d478 | 7884 | if (print_multi_lib) |
7885 | { | |
7886 | print_multilib_info (); | |
7f0b0c27 | 7887 | return (0); |
9577d478 | 7888 | } |
7889 | ||
7890 | if (print_multi_directory) | |
7891 | { | |
7892 | if (multilib_dir == NULL) | |
7893 | printf (".\n"); | |
7894 | else | |
7895 | printf ("%s\n", multilib_dir); | |
7f0b0c27 | 7896 | return (0); |
9577d478 | 7897 | } |
7898 | ||
77adc39e | 7899 | if (print_multiarch) |
7900 | { | |
7901 | if (multiarch_dir == NULL) | |
7902 | printf ("\n"); | |
7903 | else | |
7904 | printf ("%s\n", multiarch_dir); | |
7905 | return (0); | |
7906 | } | |
7907 | ||
098cc23f | 7908 | if (print_sysroot) |
7909 | { | |
7910 | if (target_system_root) | |
7911 | { | |
7912 | if (target_sysroot_suffix) | |
7913 | printf ("%s%s\n", target_system_root, target_sysroot_suffix); | |
7914 | else | |
7915 | printf ("%s\n", target_system_root); | |
7916 | } | |
7917 | return (0); | |
7918 | } | |
7919 | ||
c954ff02 | 7920 | if (print_multi_os_directory) |
7921 | { | |
7922 | if (multilib_os_dir == NULL) | |
7923 | printf (".\n"); | |
7924 | else | |
7925 | printf ("%s\n", multilib_os_dir); | |
7926 | return (0); | |
7927 | } | |
7928 | ||
6ea4242f | 7929 | if (print_sysroot_headers_suffix) |
7930 | { | |
7931 | if (*sysroot_hdrs_suffix_spec) | |
7932 | { | |
021d874e | 7933 | printf("%s\n", (target_sysroot_hdrs_suffix |
7934 | ? target_sysroot_hdrs_suffix | |
7935 | : "")); | |
6ea4242f | 7936 | return (0); |
7937 | } | |
7938 | else | |
7939 | /* The error status indicates that only one set of fixed | |
7940 | headers should be built. */ | |
c05be867 | 7941 | fatal_error (input_location, |
7942 | "not configured with sysroot headers suffix"); | |
6ea4242f | 7943 | } |
7944 | ||
8ace789a | 7945 | if (print_help_list) |
7946 | { | |
7947 | display_help (); | |
7948 | ||
7949 | if (! verbose_flag) | |
7950 | { | |
a4db0a1d | 7951 | printf (_("\nFor bug reporting instructions, please see:\n")); |
4b5ee00b | 7952 | printf ("%s.\n", bug_report_url); |
2c815aff | 7953 | |
7f0b0c27 | 7954 | return (0); |
8ace789a | 7955 | } |
7956 | ||
7957 | /* We do not exit here. Instead we have created a fake input file | |
7958 | called 'help-dummy' which needs to be compiled, and we pass this | |
0445c349 | 7959 | on the various sub-processes, along with the --help switch. |
7960 | Ensure their output appears after ours. */ | |
7961 | fputc ('\n', stdout); | |
7962 | fflush (stdout); | |
8ace789a | 7963 | } |
2c815aff | 7964 | |
39932bd2 | 7965 | if (print_version) |
7966 | { | |
460b8bb3 | 7967 | printf (_("%s %s%s\n"), progname, pkgversion_string, |
39932bd2 | 7968 | version_string); |
ebc602fe | 7969 | printf ("Copyright %s 2017 Free Software Foundation, Inc.\n", |
39932bd2 | 7970 | _("(C)")); |
7971 | fputs (_("This is free software; see the source for copying conditions. There is NO\n\ | |
7972 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"), | |
7973 | stdout); | |
7974 | if (! verbose_flag) | |
7975 | return 0; | |
7976 | ||
7977 | /* We do not exit here. We use the same mechanism of --help to print | |
7978 | the version of the sub-processes. */ | |
7979 | fputc ('\n', stdout); | |
7980 | fflush (stdout); | |
7981 | } | |
7982 | ||
d7a9644e | 7983 | if (verbose_flag) |
7984 | { | |
a31e9496 | 7985 | print_configuration (stderr); |
d7a9644e | 7986 | if (n_infiles == 0) |
7f0b0c27 | 7987 | return (0); |
d7a9644e | 7988 | } |
7989 | ||
cf8104ca | 7990 | return 1; |
7991 | } | |
7992 | ||
7993 | /* Figure out what to do with each input file. | |
7994 | Return true if we need to exit early from "main", false otherwise. */ | |
7995 | ||
7996 | bool | |
7997 | driver::prepare_infiles () | |
7998 | { | |
7999 | size_t i; | |
8000 | int lang_n_infiles = 0; | |
8001 | ||
9e56255a | 8002 | if (n_infiles == added_libraries) |
c05be867 | 8003 | fatal_error (input_location, "no input files"); |
d7a9644e | 8004 | |
5585cfe8 | 8005 | if (seen_error ()) |
cf8104ca | 8006 | /* Early exit needed from main. */ |
8007 | return true; | |
5585cfe8 | 8008 | |
d7a9644e | 8009 | /* Make a place to record the compiler output file names |
8010 | that correspond to the input files. */ | |
8011 | ||
f9b7c0b9 | 8012 | i = n_infiles; |
5272ae11 | 8013 | i += lang_specific_extra_outfiles; |
4c36ffe6 | 8014 | outfiles = XCNEWVEC (const char *, i); |
d7a9644e | 8015 | |
8016 | /* Record which files were specified explicitly as link input. */ | |
8017 | ||
468329f6 | 8018 | explicit_link_files = XCNEWVEC (char, n_infiles); |
d7a9644e | 8019 | |
9dbb005d | 8020 | combine_inputs = have_o || flag_wpa; |
dc1dd09b | 8021 | |
8022 | for (i = 0; (int) i < n_infiles; i++) | |
40109983 | 8023 | { |
dc1dd09b | 8024 | const char *name = infiles[i].name; |
2f2c6aee | 8025 | struct compiler *compiler = lookup_compiler (name, |
8026 | strlen (name), | |
dc1dd09b | 8027 | infiles[i].language); |
2f2c6aee | 8028 | |
dc1dd09b | 8029 | if (compiler && !(compiler->combinable)) |
8030 | combine_inputs = false; | |
2f2c6aee | 8031 | |
dc1dd09b | 8032 | if (lang_n_infiles > 0 && compiler != input_file_compiler |
8033 | && infiles[i].language && infiles[i].language[0] != '*') | |
8034 | infiles[i].incompiler = compiler; | |
8035 | else if (compiler) | |
8036 | { | |
8037 | lang_n_infiles++; | |
8038 | input_file_compiler = compiler; | |
8039 | infiles[i].incompiler = compiler; | |
8040 | } | |
8041 | else | |
8042 | { | |
8043 | /* Since there is no compiler for this input file, assume it is a | |
0bed3869 | 8044 | linker file. */ |
dc1dd09b | 8045 | explicit_link_files[i] = 1; |
8046 | infiles[i].incompiler = NULL; | |
8047 | } | |
8048 | infiles[i].compiled = false; | |
8049 | infiles[i].preprocessed = false; | |
40109983 | 8050 | } |
1e8e9920 | 8051 | |
1c15f131 | 8052 | if (!combine_inputs && have_c && have_o && lang_n_infiles > 1) |
c05be867 | 8053 | fatal_error (input_location, |
8054 | "cannot specify -o with -c, -S or -E with multiple files"); | |
dc1dd09b | 8055 | |
cf8104ca | 8056 | /* No early exit needed from main; we can continue. */ |
8057 | return false; | |
8058 | } | |
8059 | ||
8060 | /* Run the spec machinery on each input file. */ | |
8061 | ||
8062 | void | |
8063 | driver::do_spec_on_infiles () const | |
8064 | { | |
8065 | size_t i; | |
8066 | ||
dc1dd09b | 8067 | for (i = 0; (int) i < n_infiles; i++) |
d7a9644e | 8068 | { |
d7a9644e | 8069 | int this_file_error = 0; |
8070 | ||
8071 | /* Tell do_spec what to substitute for %i. */ | |
8072 | ||
d7a9644e | 8073 | input_file_number = i; |
397f1574 | 8074 | set_input (infiles[i].name); |
d7a9644e | 8075 | |
dc1dd09b | 8076 | if (infiles[i].compiled) |
8077 | continue; | |
8078 | ||
d7a9644e | 8079 | /* Use the same thing in %o, unless cp->spec says otherwise. */ |
8080 | ||
460b8bb3 | 8081 | outfiles[i] = gcc_input_filename; |
d7a9644e | 8082 | |
8083 | /* Figure out which compiler from the file's suffix. */ | |
8084 | ||
78d063c8 | 8085 | input_file_compiler |
8086 | = lookup_compiler (infiles[i].name, input_filename_length, | |
8087 | infiles[i].language); | |
3cfec666 | 8088 | |
96842e40 | 8089 | if (input_file_compiler) |
d7a9644e | 8090 | { |
8091 | /* Ok, we found an applicable compiler. Run its spec. */ | |
d7a9644e | 8092 | |
96842e40 | 8093 | if (input_file_compiler->spec[0] == '#') |
ce52dcfa | 8094 | { |
8095 | error ("%s: %s compiler not installed on this system", | |
460b8bb3 | 8096 | gcc_input_filename, &input_file_compiler->spec[1]); |
ce52dcfa | 8097 | this_file_error = 1; |
8098 | } | |
8099 | else | |
8100 | { | |
cf8104ca | 8101 | int value; |
8102 | ||
71278019 | 8103 | if (compare_debug) |
8104 | { | |
dd045aee | 8105 | free (debug_check_temp_file[0]); |
71278019 | 8106 | debug_check_temp_file[0] = NULL; |
8107 | ||
dd045aee | 8108 | free (debug_check_temp_file[1]); |
71278019 | 8109 | debug_check_temp_file[1] = NULL; |
8110 | } | |
8111 | ||
ce52dcfa | 8112 | value = do_spec (input_file_compiler->spec); |
dc1dd09b | 8113 | infiles[i].compiled = true; |
ce52dcfa | 8114 | if (value < 0) |
e40d30f5 | 8115 | this_file_error = 1; |
71278019 | 8116 | else if (compare_debug && debug_check_temp_file[0]) |
8117 | { | |
8118 | if (verbose_flag) | |
a922df2e | 8119 | inform (0, "recompiling with -fcompare-debug"); |
71278019 | 8120 | |
8121 | compare_debug = -compare_debug; | |
8122 | n_switches = n_switches_debug_check[1]; | |
4ff887c5 | 8123 | n_switches_alloc = n_switches_alloc_debug_check[1]; |
71278019 | 8124 | switches = switches_debug_check[1]; |
8125 | ||
8126 | value = do_spec (input_file_compiler->spec); | |
8127 | ||
8128 | compare_debug = -compare_debug; | |
8129 | n_switches = n_switches_debug_check[0]; | |
4ff887c5 | 8130 | n_switches_alloc = n_switches_alloc_debug_check[0]; |
71278019 | 8131 | switches = switches_debug_check[0]; |
8132 | ||
8133 | if (value < 0) | |
8134 | { | |
8135 | error ("during -fcompare-debug recompilation"); | |
8136 | this_file_error = 1; | |
8137 | } | |
8138 | ||
8139 | gcc_assert (debug_check_temp_file[1] | |
82715bcd | 8140 | && filename_cmp (debug_check_temp_file[0], |
8141 | debug_check_temp_file[1])); | |
71278019 | 8142 | |
8143 | if (verbose_flag) | |
a922df2e | 8144 | inform (0, "comparing final insns dumps"); |
71278019 | 8145 | |
8146 | if (compare_files (debug_check_temp_file)) | |
8147 | this_file_error = 1; | |
8148 | } | |
8149 | ||
8150 | if (compare_debug) | |
8151 | { | |
dd045aee | 8152 | free (debug_check_temp_file[0]); |
71278019 | 8153 | debug_check_temp_file[0] = NULL; |
8154 | ||
dd045aee | 8155 | free (debug_check_temp_file[1]); |
71278019 | 8156 | debug_check_temp_file[1] = NULL; |
8157 | } | |
ce52dcfa | 8158 | } |
d7a9644e | 8159 | } |
8160 | ||
8161 | /* If this file's name does not contain a recognized suffix, | |
8162 | record it as explicit linker input. */ | |
8163 | ||
8164 | else | |
8165 | explicit_link_files[i] = 1; | |
8166 | ||
8167 | /* Clear the delete-on-failure queue, deleting the files in it | |
8168 | if this compilation failed. */ | |
8169 | ||
8170 | if (this_file_error) | |
8171 | { | |
8172 | delete_failure_queue (); | |
460b8bb3 | 8173 | errorcount++; |
d7a9644e | 8174 | } |
8175 | /* If this compilation succeeded, don't delete those files later. */ | |
8176 | clear_failure_queue (); | |
8177 | } | |
8178 | ||
fbf54d9a | 8179 | /* Reset the input file name to the first compile/object file name, for use |
8180 | with %b in LINK_SPEC. We use the first input file that we can find | |
2f2c6aee | 8181 | a compiler to compile it instead of using infiles.language since for |
fbf54d9a | 8182 | languages other than C we use aliases that we then lookup later. */ |
397f1574 | 8183 | if (n_infiles > 0) |
fbf54d9a | 8184 | { |
8185 | int i; | |
8186 | ||
8187 | for (i = 0; i < n_infiles ; i++) | |
02d52d9e | 8188 | if (infiles[i].incompiler |
8189 | || (infiles[i].language && infiles[i].language[0] != '*')) | |
fbf54d9a | 8190 | { |
8191 | set_input (infiles[i].name); | |
8192 | break; | |
8193 | } | |
8194 | } | |
397f1574 | 8195 | |
460b8bb3 | 8196 | if (!seen_error ()) |
2b191381 | 8197 | { |
8198 | /* Make sure INPUT_FILE_NUMBER points to first available open | |
8199 | slot. */ | |
8200 | input_file_number = n_infiles; | |
8201 | if (lang_specific_pre_link ()) | |
460b8bb3 | 8202 | errorcount++; |
2b191381 | 8203 | } |
cf8104ca | 8204 | } |
8205 | ||
8206 | /* If we have to run the linker, do it now. */ | |
8207 | ||
8208 | void | |
8209 | driver::maybe_run_linker (const char *argv0) const | |
8210 | { | |
8211 | size_t i; | |
8212 | int linker_was_run = 0; | |
8213 | int num_linker_inputs; | |
f9b7c0b9 | 8214 | |
573aba85 | 8215 | /* Determine if there are any linker input files. */ |
8216 | num_linker_inputs = 0; | |
8217 | for (i = 0; (int) i < n_infiles; i++) | |
8218 | if (explicit_link_files[i] || outfiles[i] != NULL) | |
8219 | num_linker_inputs++; | |
8220 | ||
d7a9644e | 8221 | /* Run ld to link all the compiler output files. */ |
8222 | ||
460b8bb3 | 8223 | if (num_linker_inputs > 0 && !seen_error () && print_subprocess_help < 2) |
d7a9644e | 8224 | { |
8225 | int tmp = execution_count; | |
1d784785 | 8226 | |
8227 | if (! have_c) | |
8228 | { | |
c5f741b3 | 8229 | #if HAVE_LTO_PLUGIN > 0 |
8230 | #if HAVE_LTO_PLUGIN == 2 | |
1d784785 | 8231 | const char *fno_use_linker_plugin = "fno-use-linker-plugin"; |
de4d280b | 8232 | #else |
1d784785 | 8233 | const char *fuse_linker_plugin = "fuse-linker-plugin"; |
c5f741b3 | 8234 | #endif |
de4d280b | 8235 | #endif |
8894538a | 8236 | |
1d784785 | 8237 | /* We'll use ld if we can't find collect2. */ |
8238 | if (! strcmp (linker_name_spec, "collect2")) | |
8239 | { | |
8240 | char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false); | |
8241 | if (s == NULL) | |
8242 | linker_name_spec = "ld"; | |
8243 | } | |
7bfefa9d | 8244 | |
c5f741b3 | 8245 | #if HAVE_LTO_PLUGIN > 0 |
8246 | #if HAVE_LTO_PLUGIN == 2 | |
1d784785 | 8247 | if (!switch_matches (fno_use_linker_plugin, |
8248 | fno_use_linker_plugin | |
8249 | + strlen (fno_use_linker_plugin), 0)) | |
de4d280b | 8250 | #else |
1d784785 | 8251 | if (switch_matches (fuse_linker_plugin, |
8252 | fuse_linker_plugin | |
8253 | + strlen (fuse_linker_plugin), 0)) | |
de4d280b | 8254 | #endif |
1d784785 | 8255 | { |
40c059b1 | 8256 | char *temp_spec = find_a_file (&exec_prefixes, |
8257 | LTOPLUGINSONAME, R_OK, | |
8258 | false); | |
8259 | if (!temp_spec) | |
c05be867 | 8260 | fatal_error (input_location, |
8261 | "-fuse-linker-plugin, but %s not found", | |
1d784785 | 8262 | LTOPLUGINSONAME); |
40c059b1 | 8263 | linker_plugin_file_spec = convert_white_space (temp_spec); |
1d784785 | 8264 | } |
c5f741b3 | 8265 | #endif |
cf8104ca | 8266 | lto_gcc_spec = argv0; |
1d784785 | 8267 | } |
7bfefa9d | 8268 | |
8894538a | 8269 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables |
8270 | for collect. */ | |
067277c3 | 8271 | putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false); |
8272 | putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true); | |
8894538a | 8273 | |
ceac8e8c | 8274 | if (print_subprocess_help == 1) |
8275 | { | |
8276 | printf (_("\nLinker options\n==============\n\n")); | |
8277 | printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\"" | |
8278 | " to the linker.\n\n")); | |
8279 | fflush (stdout); | |
8280 | } | |
cf8104ca | 8281 | int value = do_spec (link_command_spec); |
d7a9644e | 8282 | if (value < 0) |
460b8bb3 | 8283 | errorcount = 1; |
d7a9644e | 8284 | linker_was_run = (tmp != execution_count); |
8285 | } | |
8286 | ||
d7a9644e | 8287 | /* If options said don't run linker, |
8288 | complain about input files to be given to the linker. */ | |
8289 | ||
460b8bb3 | 8290 | if (! linker_was_run && !seen_error ()) |
026f2c7a | 8291 | for (i = 0; (int) i < n_infiles; i++) |
3293d046 | 8292 | if (explicit_link_files[i] |
8293 | && !(infiles[i].language && infiles[i].language[0] == '*')) | |
a922df2e | 8294 | warning (0, "%s: linker input file unused because linking not done", |
8295 | outfiles[i]); | |
cf8104ca | 8296 | } |
8297 | ||
8298 | /* The end of "main". */ | |
d7a9644e | 8299 | |
cf8104ca | 8300 | void |
8301 | driver::final_actions () const | |
8302 | { | |
d7a9644e | 8303 | /* Delete some or all of the temporary files we made. */ |
8304 | ||
460b8bb3 | 8305 | if (seen_error ()) |
d7a9644e | 8306 | delete_failure_queue (); |
8307 | delete_temp_files (); | |
8308 | ||
8ace789a | 8309 | if (print_help_list) |
8310 | { | |
a4db0a1d | 8311 | printf (("\nFor bug reporting instructions, please see:\n")); |
4b5ee00b | 8312 | printf ("%s\n", bug_report_url); |
8ace789a | 8313 | } |
cf8104ca | 8314 | } |
2c815aff | 8315 | |
cf8104ca | 8316 | /* Determine what the exit code of the driver should be. */ |
8317 | ||
8318 | int | |
8319 | driver::get_exit_code () const | |
8320 | { | |
155b05dc | 8321 | return (signal_count != 0 ? 2 |
460b8bb3 | 8322 | : seen_error () ? (pass_exit_codes ? greatest_status : 1) |
155b05dc | 8323 | : 0); |
d7a9644e | 8324 | } |
8325 | ||
8326 | /* Find the proper compilation spec for the file name NAME, | |
a45072dd | 8327 | whose length is LENGTH. LANGUAGE is the specified language, |
997d68fe | 8328 | or 0 if this file is to be passed to the linker. */ |
d7a9644e | 8329 | |
8330 | static struct compiler * | |
952f0048 | 8331 | lookup_compiler (const char *name, size_t length, const char *language) |
d7a9644e | 8332 | { |
8333 | struct compiler *cp; | |
8334 | ||
d4ea3b1f | 8335 | /* If this was specified by the user to be a linker input, indicate that. */ |
997d68fe | 8336 | if (language != 0 && language[0] == '*') |
8337 | return 0; | |
8338 | ||
8339 | /* Otherwise, look for the language, if one is spec'd. */ | |
d7a9644e | 8340 | if (language != 0) |
8341 | { | |
8342 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
997d68fe | 8343 | if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language)) |
f6deeb21 | 8344 | { |
8345 | if (name != NULL && strcmp (name, "-") == 0 | |
8346 | && (strcmp (cp->suffix, "@c-header") == 0 | |
800e901e | 8347 | || strcmp (cp->suffix, "@c++-header") == 0) |
8348 | && !have_E) | |
f6deeb21 | 8349 | fatal_error (input_location, |
8350 | "cannot use %<-%> as input filename for a " | |
8351 | "precompiled header"); | |
8352 | ||
8353 | return cp; | |
8354 | } | |
997d68fe | 8355 | |
d7a9644e | 8356 | error ("language %s not recognized", language); |
997d68fe | 8357 | return 0; |
d7a9644e | 8358 | } |
8359 | ||
8360 | /* Look for a suffix. */ | |
8361 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
8362 | { | |
a3102c3c | 8363 | if (/* The suffix `-' matches only the file name `-'. */ |
8364 | (!strcmp (cp->suffix, "-") && !strcmp (name, "-")) | |
997d68fe | 8365 | || (strlen (cp->suffix) < length |
8366 | /* See if the suffix matches the end of NAME. */ | |
997d68fe | 8367 | && !strcmp (cp->suffix, |
8368 | name + length - strlen (cp->suffix)) | |
997d68fe | 8369 | )) |
3cfec666 | 8370 | break; |
22869eeb | 8371 | } |
997d68fe | 8372 | |
22869eeb | 8373 | #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM) |
aab2cf92 | 8374 | /* Look again, but case-insensitively this time. */ |
22869eeb | 8375 | if (cp < compilers) |
8376 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
8377 | { | |
8378 | if (/* The suffix `-' matches only the file name `-'. */ | |
8379 | (!strcmp (cp->suffix, "-") && !strcmp (name, "-")) | |
8380 | || (strlen (cp->suffix) < length | |
8381 | /* See if the suffix matches the end of NAME. */ | |
8382 | && ((!strcmp (cp->suffix, | |
8383 | name + length - strlen (cp->suffix)) | |
8384 | || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")) | |
8385 | && !strcasecmp (cp->suffix, | |
8386 | name + length - strlen (cp->suffix))) | |
8387 | )) | |
8388 | break; | |
8389 | } | |
8390 | #endif | |
8391 | ||
22869eeb | 8392 | if (cp >= compilers) |
8393 | { | |
1cf79a1a | 8394 | if (cp->spec[0] != '@') |
8395 | /* A non-alias entry: return it. */ | |
8396 | return cp; | |
2c815aff | 8397 | |
1cf79a1a | 8398 | /* An alias entry maps a suffix to a language. |
8399 | Search for the language; pass 0 for NAME and LENGTH | |
8400 | to avoid infinite recursion if language not found. */ | |
d946ea19 | 8401 | return lookup_compiler (NULL, 0, cp->spec + 1); |
d7a9644e | 8402 | } |
d7a9644e | 8403 | return 0; |
8404 | } | |
8405 | \f | |
d7a9644e | 8406 | static char * |
952f0048 | 8407 | save_string (const char *s, int len) |
d7a9644e | 8408 | { |
4c36ffe6 | 8409 | char *result = XNEWVEC (char, len + 1); |
d7a9644e | 8410 | |
b3532bc1 | 8411 | gcc_checking_assert (strlen (s) >= (unsigned int) len); |
d5130039 | 8412 | memcpy (result, s, len); |
d7a9644e | 8413 | result[len] = 0; |
8414 | return result; | |
8415 | } | |
8416 | ||
833a5c07 | 8417 | void |
952f0048 | 8418 | pfatal_with_name (const char *name) |
d7a9644e | 8419 | { |
be2828ce | 8420 | perror_with_name (name); |
8421 | delete_temp_files (); | |
8422 | exit (1); | |
d7a9644e | 8423 | } |
8424 | ||
8425 | static void | |
952f0048 | 8426 | perror_with_name (const char *name) |
d7a9644e | 8427 | { |
a8c464ac | 8428 | error ("%s: %m", name); |
d7a9644e | 8429 | } |
d7a9644e | 8430 | \f |
805e22b2 | 8431 | static inline void |
556cfe53 | 8432 | validate_switches_from_spec (const char *spec, bool user) |
805e22b2 | 8433 | { |
8434 | const char *p = spec; | |
8435 | char c; | |
8436 | while ((c = *p++)) | |
8437 | if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{'))) | |
8438 | /* We have a switch spec. */ | |
556cfe53 | 8439 | p = validate_switches (p + 1, user); |
805e22b2 | 8440 | } |
8441 | ||
d7a9644e | 8442 | static void |
952f0048 | 8443 | validate_all_switches (void) |
d7a9644e | 8444 | { |
8445 | struct compiler *comp; | |
8894538a | 8446 | struct spec_list *spec; |
d7a9644e | 8447 | |
1cf79a1a | 8448 | for (comp = compilers; comp->spec; comp++) |
556cfe53 | 8449 | validate_switches_from_spec (comp->spec, false); |
d7a9644e | 8450 | |
d4ea3b1f | 8451 | /* Look through the linked list of specs read from the specs file. */ |
026f2c7a | 8452 | for (spec = specs; spec; spec = spec->next) |
556cfe53 | 8453 | validate_switches_from_spec (*spec->ptr_spec, spec->user_p); |
8894538a | 8454 | |
556cfe53 | 8455 | validate_switches_from_spec (link_command_spec, false); |
d7a9644e | 8456 | } |
8457 | ||
8458 | /* Look at the switch-name that comes after START | |
8459 | and mark as valid all supplied switches that match it. */ | |
8460 | ||
805e22b2 | 8461 | static const char * |
556cfe53 | 8462 | validate_switches (const char *start, bool user_spec) |
d7a9644e | 8463 | { |
19cb6b50 | 8464 | const char *p = start; |
805e22b2 | 8465 | const char *atom; |
8466 | size_t len; | |
19cb6b50 | 8467 | int i; |
805e22b2 | 8468 | bool suffix = false; |
8469 | bool starred = false; | |
952f0048 | 8470 | |
805e22b2 | 8471 | #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0) |
952f0048 | 8472 | |
dead3293 | 8473 | next_member: |
805e22b2 | 8474 | SKIP_WHITE (); |
8475 | ||
d7a9644e | 8476 | if (*p == '!') |
805e22b2 | 8477 | p++; |
d7a9644e | 8478 | |
805e22b2 | 8479 | SKIP_WHITE (); |
90e35d1a | 8480 | if (*p == '.' || *p == ',') |
805e22b2 | 8481 | suffix = true, p++; |
d7a9644e | 8482 | |
805e22b2 | 8483 | atom = p; |
8484 | while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '=' | |
9a4a603c | 8485 | || *p == ',' || *p == '.' || *p == '@') |
026f2c7a | 8486 | p++; |
805e22b2 | 8487 | len = p - atom; |
d7a9644e | 8488 | |
805e22b2 | 8489 | if (*p == '*') |
8490 | starred = true, p++; | |
8491 | ||
8492 | SKIP_WHITE (); | |
8493 | ||
8494 | if (!suffix) | |
d7a9644e | 8495 | { |
8496 | /* Mark all matching switches as valid. */ | |
d7a9644e | 8497 | for (i = 0; i < n_switches; i++) |
805e22b2 | 8498 | if (!strncmp (switches[i].part1, atom, len) |
556cfe53 | 8499 | && (starred || switches[i].part1[len] == '\0') |
8500 | && (switches[i].known || user_spec)) | |
8501 | switches[i].validated = true; | |
d7a9644e | 8502 | } |
805e22b2 | 8503 | |
49aaac6f | 8504 | if (*p) p++; |
8505 | if (*p && (p[-1] == '|' || p[-1] == '&')) | |
805e22b2 | 8506 | goto next_member; |
8507 | ||
49aaac6f | 8508 | if (*p && p[-1] == ':') |
d7a9644e | 8509 | { |
805e22b2 | 8510 | while (*p && *p != ';' && *p != '}') |
d7a9644e | 8511 | { |
805e22b2 | 8512 | if (*p == '%') |
8513 | { | |
8514 | p++; | |
8515 | if (*p == '{' || *p == '<') | |
556cfe53 | 8516 | p = validate_switches (p+1, user_spec); |
805e22b2 | 8517 | else if (p[0] == 'W' && p[1] == '{') |
556cfe53 | 8518 | p = validate_switches (p+2, user_spec); |
805e22b2 | 8519 | } |
41b8b07e | 8520 | else |
8521 | p++; | |
d7a9644e | 8522 | } |
805e22b2 | 8523 | |
49aaac6f | 8524 | if (*p) p++; |
8525 | if (*p && p[-1] == ';') | |
805e22b2 | 8526 | goto next_member; |
d7a9644e | 8527 | } |
dead3293 | 8528 | |
805e22b2 | 8529 | return p; |
8530 | #undef SKIP_WHITE | |
d7a9644e | 8531 | } |
9577d478 | 8532 | \f |
c954ff02 | 8533 | struct mdswitchstr |
8534 | { | |
8535 | const char *str; | |
8536 | int len; | |
8537 | }; | |
8538 | ||
8539 | static struct mdswitchstr *mdswitches; | |
8540 | static int n_mdswitches; | |
8541 | ||
3d97d965 | 8542 | /* Check whether a particular argument was used. The first time we |
ad87de1e | 8543 | canonicalize the switches to keep only the ones we care about. */ |
9577d478 | 8544 | |
26a4a13d | 8545 | class used_arg_t |
9577d478 | 8546 | { |
26a4a13d | 8547 | public: |
8548 | int operator () (const char *p, int len); | |
8549 | void finalize (); | |
8550 | ||
8551 | private: | |
d4ea3b1f | 8552 | struct mswitchstr |
8553 | { | |
e772a198 | 8554 | const char *str; |
8555 | const char *replace; | |
3d97d965 | 8556 | int len; |
8557 | int rep_len; | |
8558 | }; | |
8559 | ||
26a4a13d | 8560 | mswitchstr *mswitches; |
8561 | int n_mswitches; | |
8562 | ||
8563 | }; | |
8564 | ||
8565 | used_arg_t used_arg; | |
8566 | ||
8567 | int | |
8568 | used_arg_t::operator () (const char *p, int len) | |
8569 | { | |
3d97d965 | 8570 | int i, j; |
8571 | ||
8572 | if (!mswitches) | |
8573 | { | |
8574 | struct mswitchstr *matches; | |
e772a198 | 8575 | const char *q; |
d0fdc842 | 8576 | int cnt = 0; |
3d97d965 | 8577 | |
026f2c7a | 8578 | /* Break multilib_matches into the component strings of string |
8579 | and replacement string. */ | |
c4fa40de | 8580 | for (q = multilib_matches; *q != '\0'; q++) |
8581 | if (*q == ';') | |
3d97d965 | 8582 | cnt++; |
8583 | ||
25a1c410 | 8584 | matches |
8585 | = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt); | |
3d97d965 | 8586 | i = 0; |
8587 | q = multilib_matches; | |
8588 | while (*q != '\0') | |
8589 | { | |
8590 | matches[i].str = q; | |
8591 | while (*q != ' ') | |
8592 | { | |
8593 | if (*q == '\0') | |
5e8f3c31 | 8594 | { |
8595 | invalid_matches: | |
c05be867 | 8596 | fatal_error (input_location, "multilib spec %qs is invalid", |
a922df2e | 8597 | multilib_matches); |
5e8f3c31 | 8598 | } |
3d97d965 | 8599 | q++; |
8600 | } | |
3d97d965 | 8601 | matches[i].len = q - matches[i].str; |
9577d478 | 8602 | |
3d97d965 | 8603 | matches[i].replace = ++q; |
8604 | while (*q != ';' && *q != '\0') | |
8605 | { | |
8606 | if (*q == ' ') | |
5e8f3c31 | 8607 | goto invalid_matches; |
3d97d965 | 8608 | q++; |
8609 | } | |
8610 | matches[i].rep_len = q - matches[i].replace; | |
8611 | i++; | |
401574b8 | 8612 | if (*q == ';') |
8613 | q++; | |
3d97d965 | 8614 | } |
9577d478 | 8615 | |
0a4dc6a9 | 8616 | /* Now build a list of the replacement string for switches that we care |
8617 | about. Make sure we allocate at least one entry. This prevents | |
8618 | xmalloc from calling fatal, and prevents us from re-executing this | |
8619 | block of code. */ | |
8620 | mswitches | |
4c36ffe6 | 8621 | = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1)); |
3d97d965 | 8622 | for (i = 0; i < n_switches; i++) |
79d52444 | 8623 | if ((switches[i].live_cond & SWITCH_IGNORE) == 0) |
0c76b21e | 8624 | { |
8625 | int xlen = strlen (switches[i].part1); | |
8626 | for (j = 0; j < cnt; j++) | |
8627 | if (xlen == matches[j].len | |
8628 | && ! strncmp (switches[i].part1, matches[j].str, xlen)) | |
8629 | { | |
8630 | mswitches[n_mswitches].str = matches[j].replace; | |
8631 | mswitches[n_mswitches].len = matches[j].rep_len; | |
8632 | mswitches[n_mswitches].replace = (char *) 0; | |
8633 | mswitches[n_mswitches].rep_len = 0; | |
8634 | n_mswitches++; | |
8635 | break; | |
8636 | } | |
8637 | } | |
c954ff02 | 8638 | |
8639 | /* Add MULTILIB_DEFAULTS switches too, as long as they were not present | |
8640 | on the command line nor any options mutually incompatible with | |
8641 | them. */ | |
8642 | for (i = 0; i < n_mdswitches; i++) | |
8643 | { | |
8644 | const char *r; | |
8645 | ||
645f3563 | 8646 | for (q = multilib_options; *q != '\0'; *q && q++) |
c954ff02 | 8647 | { |
8648 | while (*q == ' ') | |
8649 | q++; | |
8650 | ||
8651 | r = q; | |
8652 | while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0 | |
8653 | || strchr (" /", q[mdswitches[i].len]) == NULL) | |
8654 | { | |
8655 | while (*q != ' ' && *q != '/' && *q != '\0') | |
8656 | q++; | |
8657 | if (*q != '/') | |
8658 | break; | |
8659 | q++; | |
8660 | } | |
8661 | ||
8662 | if (*q != ' ' && *q != '\0') | |
8663 | { | |
8664 | while (*r != ' ' && *r != '\0') | |
8665 | { | |
8666 | q = r; | |
8667 | while (*q != ' ' && *q != '/' && *q != '\0') | |
8668 | q++; | |
8669 | ||
8670 | if (used_arg (r, q - r)) | |
8671 | break; | |
8672 | ||
8673 | if (*q != '/') | |
8674 | { | |
8675 | mswitches[n_mswitches].str = mdswitches[i].str; | |
8676 | mswitches[n_mswitches].len = mdswitches[i].len; | |
8677 | mswitches[n_mswitches].replace = (char *) 0; | |
8678 | mswitches[n_mswitches].rep_len = 0; | |
8679 | n_mswitches++; | |
8680 | break; | |
8681 | } | |
8682 | ||
8683 | r = q + 1; | |
8684 | } | |
8685 | break; | |
8686 | } | |
8687 | } | |
8688 | } | |
3d97d965 | 8689 | } |
48583106 | 8690 | |
3d97d965 | 8691 | for (i = 0; i < n_mswitches; i++) |
8692 | if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len)) | |
8693 | return 1; | |
48583106 | 8694 | |
3d97d965 | 8695 | return 0; |
8696 | } | |
48583106 | 8697 | |
26a4a13d | 8698 | void used_arg_t::finalize () |
8699 | { | |
8700 | XDELETEVEC (mswitches); | |
8701 | mswitches = NULL; | |
8702 | n_mswitches = 0; | |
8703 | } | |
8704 | ||
8705 | ||
48583106 | 8706 | static int |
952f0048 | 8707 | default_arg (const char *p, int len) |
48583106 | 8708 | { |
c954ff02 | 8709 | int i; |
618c6dbb | 8710 | |
c954ff02 | 8711 | for (i = 0; i < n_mdswitches; i++) |
8712 | if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len)) | |
8713 | return 1; | |
48583106 | 8714 | |
8715 | return 0; | |
8716 | } | |
8717 | ||
54518c3b | 8718 | /* Work out the subdirectory to use based on the options. The format of |
8719 | multilib_select is a list of elements. Each element is a subdirectory | |
8720 | name followed by a list of options followed by a semicolon. The format | |
8721 | of multilib_exclusions is the same, but without the preceding | |
8722 | directory. First gcc will check the exclusions, if none of the options | |
8723 | beginning with an exclamation point are present, and all of the other | |
8724 | options are present, then we will ignore this completely. Passing | |
8725 | that, gcc will consider each multilib_select in turn using the same | |
8726 | rules for matching the options. If a match is found, that subdirectory | |
77adc39e | 8727 | will be used. |
8728 | A subdirectory name is optionally followed by a colon and the corresponding | |
8729 | multiarch name. */ | |
9577d478 | 8730 | |
8731 | static void | |
952f0048 | 8732 | set_multilib_dir (void) |
9577d478 | 8733 | { |
e772a198 | 8734 | const char *p; |
d4ea3b1f | 8735 | unsigned int this_path_len; |
e772a198 | 8736 | const char *this_path, *this_arg; |
c954ff02 | 8737 | const char *start, *end; |
48583106 | 8738 | int not_arg; |
c954ff02 | 8739 | int ok, ndfltok, first; |
8740 | ||
8741 | n_mdswitches = 0; | |
8742 | start = multilib_defaults; | |
8743 | while (*start == ' ' || *start == '\t') | |
8744 | start++; | |
8745 | while (*start != '\0') | |
8746 | { | |
8747 | n_mdswitches++; | |
8748 | while (*start != ' ' && *start != '\t' && *start != '\0') | |
8749 | start++; | |
8750 | while (*start == ' ' || *start == '\t') | |
8751 | start++; | |
8752 | } | |
8753 | ||
8754 | if (n_mdswitches) | |
8755 | { | |
8756 | int i = 0; | |
8757 | ||
4c36ffe6 | 8758 | mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches); |
c954ff02 | 8759 | for (start = multilib_defaults; *start != '\0'; start = end + 1) |
8760 | { | |
8761 | while (*start == ' ' || *start == '\t') | |
8762 | start++; | |
8763 | ||
8764 | if (*start == '\0') | |
8765 | break; | |
952f0048 | 8766 | |
c954ff02 | 8767 | for (end = start + 1; |
8768 | *end != ' ' && *end != '\t' && *end != '\0'; end++) | |
8769 | ; | |
8770 | ||
8771 | obstack_grow (&multilib_obstack, start, end - start); | |
8772 | obstack_1grow (&multilib_obstack, 0); | |
4fac984f | 8773 | mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *); |
c954ff02 | 8774 | mdswitches[i++].len = end - start; |
8775 | ||
8776 | if (*end == '\0') | |
8777 | break; | |
8778 | } | |
8779 | } | |
9577d478 | 8780 | |
54518c3b | 8781 | p = multilib_exclusions; |
8782 | while (*p != '\0') | |
8783 | { | |
8784 | /* Ignore newlines. */ | |
8785 | if (*p == '\n') | |
026f2c7a | 8786 | { |
8787 | ++p; | |
8788 | continue; | |
8789 | } | |
54518c3b | 8790 | |
8791 | /* Check the arguments. */ | |
8792 | ok = 1; | |
8793 | while (*p != ';') | |
026f2c7a | 8794 | { |
8795 | if (*p == '\0') | |
5e8f3c31 | 8796 | { |
8797 | invalid_exclusions: | |
c05be867 | 8798 | fatal_error (input_location, "multilib exclusions %qs is invalid", |
a922df2e | 8799 | multilib_exclusions); |
5e8f3c31 | 8800 | } |
026f2c7a | 8801 | |
8802 | if (! ok) | |
8803 | { | |
8804 | ++p; | |
8805 | continue; | |
8806 | } | |
8807 | ||
8808 | this_arg = p; | |
8809 | while (*p != ' ' && *p != ';') | |
8810 | { | |
8811 | if (*p == '\0') | |
5e8f3c31 | 8812 | goto invalid_exclusions; |
026f2c7a | 8813 | ++p; |
8814 | } | |
8815 | ||
8816 | if (*this_arg != '!') | |
8817 | not_arg = 0; | |
8818 | else | |
8819 | { | |
8820 | not_arg = 1; | |
8821 | ++this_arg; | |
8822 | } | |
2c815aff | 8823 | |
54518c3b | 8824 | ok = used_arg (this_arg, p - this_arg); |
8825 | if (not_arg) | |
8826 | ok = ! ok; | |
8827 | ||
026f2c7a | 8828 | if (*p == ' ') |
8829 | ++p; | |
8830 | } | |
54518c3b | 8831 | |
8832 | if (ok) | |
d4ea3b1f | 8833 | return; |
54518c3b | 8834 | |
8835 | ++p; | |
8836 | } | |
8837 | ||
c954ff02 | 8838 | first = 1; |
54518c3b | 8839 | p = multilib_select; |
7137cdac | 8840 | |
8841 | /* Append multilib reuse rules if any. With those rules, we can reuse | |
8842 | one multilib for certain different options sets. */ | |
8843 | if (strlen (multilib_reuse) > 0) | |
8844 | p = concat (p, multilib_reuse, NULL); | |
8845 | ||
9577d478 | 8846 | while (*p != '\0') |
8847 | { | |
8848 | /* Ignore newlines. */ | |
8849 | if (*p == '\n') | |
8850 | { | |
8851 | ++p; | |
8852 | continue; | |
8853 | } | |
8854 | ||
8855 | /* Get the initial path. */ | |
8856 | this_path = p; | |
8857 | while (*p != ' ') | |
8858 | { | |
8859 | if (*p == '\0') | |
5e8f3c31 | 8860 | { |
8861 | invalid_select: | |
c05be867 | 8862 | fatal_error (input_location, "multilib select %qs %qs is invalid", |
7137cdac | 8863 | multilib_select, multilib_reuse); |
5e8f3c31 | 8864 | } |
9577d478 | 8865 | ++p; |
8866 | } | |
8867 | this_path_len = p - this_path; | |
8868 | ||
8869 | /* Check the arguments. */ | |
48583106 | 8870 | ok = 1; |
c954ff02 | 8871 | ndfltok = 1; |
9577d478 | 8872 | ++p; |
8873 | while (*p != ';') | |
8874 | { | |
8875 | if (*p == '\0') | |
5e8f3c31 | 8876 | goto invalid_select; |
9577d478 | 8877 | |
48583106 | 8878 | if (! ok) |
9577d478 | 8879 | { |
8880 | ++p; | |
8881 | continue; | |
8882 | } | |
8883 | ||
8884 | this_arg = p; | |
8885 | while (*p != ' ' && *p != ';') | |
8886 | { | |
8887 | if (*p == '\0') | |
5e8f3c31 | 8888 | goto invalid_select; |
9577d478 | 8889 | ++p; |
8890 | } | |
8891 | ||
48583106 | 8892 | if (*this_arg != '!') |
8893 | not_arg = 0; | |
9577d478 | 8894 | else |
48583106 | 8895 | { |
8896 | not_arg = 1; | |
8897 | ++this_arg; | |
8898 | } | |
8899 | ||
8900 | /* If this is a default argument, we can just ignore it. | |
8901 | This is true even if this_arg begins with '!'. Beginning | |
8902 | with '!' does not mean that this argument is necessarily | |
8903 | inappropriate for this library: it merely means that | |
8904 | there is a more specific library which uses this | |
8905 | argument. If this argument is a default, we need not | |
8906 | consider that more specific library. */ | |
c954ff02 | 8907 | ok = used_arg (this_arg, p - this_arg); |
8908 | if (not_arg) | |
8909 | ok = ! ok; | |
8910 | ||
8911 | if (! ok) | |
8912 | ndfltok = 0; | |
8913 | ||
8914 | if (default_arg (this_arg, p - this_arg)) | |
8915 | ok = 1; | |
9577d478 | 8916 | |
8917 | if (*p == ' ') | |
8918 | ++p; | |
8919 | } | |
8920 | ||
c954ff02 | 8921 | if (ok && first) |
9577d478 | 8922 | { |
8923 | if (this_path_len != 1 | |
8924 | || this_path[0] != '.') | |
8925 | { | |
4c36ffe6 | 8926 | char *new_multilib_dir = XNEWVEC (char, this_path_len + 1); |
c954ff02 | 8927 | char *q; |
8928 | ||
e40d43cc | 8929 | strncpy (new_multilib_dir, this_path, this_path_len); |
8930 | new_multilib_dir[this_path_len] = '\0'; | |
c954ff02 | 8931 | q = strchr (new_multilib_dir, ':'); |
8932 | if (q != NULL) | |
8933 | *q = '\0'; | |
e40d43cc | 8934 | multilib_dir = new_multilib_dir; |
9577d478 | 8935 | } |
c954ff02 | 8936 | first = 0; |
8937 | } | |
8938 | ||
8939 | if (ndfltok) | |
8940 | { | |
8941 | const char *q = this_path, *end = this_path + this_path_len; | |
8942 | ||
8943 | while (q < end && *q != ':') | |
8944 | q++; | |
a2770a85 | 8945 | if (q < end) |
c954ff02 | 8946 | { |
77adc39e | 8947 | const char *q2 = q + 1, *ml_end = end; |
8948 | char *new_multilib_os_dir; | |
8949 | ||
8950 | while (q2 < end && *q2 != ':') | |
8951 | q2++; | |
8952 | if (*q2 == ':') | |
8953 | ml_end = q2; | |
5f243933 | 8954 | if (ml_end - q == 1) |
8955 | multilib_os_dir = xstrdup ("."); | |
8956 | else | |
8957 | { | |
8958 | new_multilib_os_dir = XNEWVEC (char, ml_end - q); | |
8959 | memcpy (new_multilib_os_dir, q + 1, ml_end - q - 1); | |
8960 | new_multilib_os_dir[ml_end - q - 1] = '\0'; | |
8961 | multilib_os_dir = new_multilib_os_dir; | |
8962 | } | |
77adc39e | 8963 | |
8964 | if (q2 < end && *q2 == ':') | |
8965 | { | |
8966 | char *new_multiarch_dir = XNEWVEC (char, end - q2); | |
8967 | memcpy (new_multiarch_dir, q2 + 1, end - q2 - 1); | |
8968 | new_multiarch_dir[end - q2 - 1] = '\0'; | |
8969 | multiarch_dir = new_multiarch_dir; | |
8970 | } | |
c954ff02 | 8971 | break; |
8972 | } | |
9577d478 | 8973 | } |
8974 | ||
8975 | ++p; | |
2c815aff | 8976 | } |
c954ff02 | 8977 | |
8978 | if (multilib_dir == NULL && multilib_os_dir != NULL | |
992809d1 | 8979 | && strcmp (multilib_os_dir, ".") == 0) |
c954ff02 | 8980 | { |
e47a6f81 | 8981 | free (CONST_CAST (char *, multilib_os_dir)); |
c954ff02 | 8982 | multilib_os_dir = NULL; |
8983 | } | |
8984 | else if (multilib_dir != NULL && multilib_os_dir == NULL) | |
8985 | multilib_os_dir = multilib_dir; | |
9577d478 | 8986 | } |
8987 | ||
8988 | /* Print out the multiple library subdirectory selection | |
8989 | information. This prints out a series of lines. Each line looks | |
8990 | like SUBDIRECTORY;@OPTION@OPTION, with as many options as is | |
8991 | required. Only the desired options are printed out, the negative | |
8992 | matches. The options are print without a leading dash. There are | |
8993 | no spaces to make it easy to use the information in the shell. | |
8994 | Each subdirectory is printed only once. This assumes the ordering | |
54518c3b | 8995 | generated by the genmultilib script. Also, we leave out ones that match |
8996 | the exclusions. */ | |
9577d478 | 8997 | |
8998 | static void | |
952f0048 | 8999 | print_multilib_info (void) |
9577d478 | 9000 | { |
e772a198 | 9001 | const char *p = multilib_select; |
9002 | const char *last_path = 0, *this_path; | |
48583106 | 9003 | int skip; |
d4ea3b1f | 9004 | unsigned int last_path_len = 0; |
9577d478 | 9005 | |
9006 | while (*p != '\0') | |
9007 | { | |
54518c3b | 9008 | skip = 0; |
9577d478 | 9009 | /* Ignore newlines. */ |
9010 | if (*p == '\n') | |
9011 | { | |
9012 | ++p; | |
9013 | continue; | |
9014 | } | |
9015 | ||
9016 | /* Get the initial path. */ | |
9017 | this_path = p; | |
9018 | while (*p != ' ') | |
9019 | { | |
9020 | if (*p == '\0') | |
5e8f3c31 | 9021 | { |
9022 | invalid_select: | |
c05be867 | 9023 | fatal_error (input_location, |
9024 | "multilib select %qs is invalid", multilib_select); | |
5e8f3c31 | 9025 | } |
2f2c6aee | 9026 | |
9577d478 | 9027 | ++p; |
9028 | } | |
9029 | ||
a2770a85 | 9030 | /* When --disable-multilib was used but target defines |
77adc39e | 9031 | MULTILIB_OSDIRNAMES, entries starting with .: (and not starting |
9032 | with .:: for multiarch configurations) are there just to find | |
9033 | multilib_os_dir, so skip them from output. */ | |
9034 | if (this_path[0] == '.' && this_path[1] == ':' && this_path[2] != ':') | |
a2770a85 | 9035 | skip = 1; |
9036 | ||
54518c3b | 9037 | /* Check for matches with the multilib_exclusions. We don't bother |
9038 | with the '!' in either list. If any of the exclusion rules match | |
9039 | all of its options with the select rule, we skip it. */ | |
026f2c7a | 9040 | { |
9041 | const char *e = multilib_exclusions; | |
9042 | const char *this_arg; | |
54518c3b | 9043 | |
026f2c7a | 9044 | while (*e != '\0') |
9045 | { | |
9046 | int m = 1; | |
9047 | /* Ignore newlines. */ | |
9048 | if (*e == '\n') | |
9049 | { | |
9050 | ++e; | |
9051 | continue; | |
9052 | } | |
54518c3b | 9053 | |
026f2c7a | 9054 | /* Check the arguments. */ |
9055 | while (*e != ';') | |
9056 | { | |
9057 | const char *q; | |
9058 | int mp = 0; | |
54518c3b | 9059 | |
026f2c7a | 9060 | if (*e == '\0') |
5e8f3c31 | 9061 | { |
9062 | invalid_exclusion: | |
c05be867 | 9063 | fatal_error (input_location, |
9064 | "multilib exclusion %qs is invalid", | |
a922df2e | 9065 | multilib_exclusions); |
5e8f3c31 | 9066 | } |
2c815aff | 9067 | |
026f2c7a | 9068 | if (! m) |
9069 | { | |
9070 | ++e; | |
9071 | continue; | |
9072 | } | |
54518c3b | 9073 | |
026f2c7a | 9074 | this_arg = e; |
2c815aff | 9075 | |
026f2c7a | 9076 | while (*e != ' ' && *e != ';') |
9077 | { | |
9078 | if (*e == '\0') | |
5e8f3c31 | 9079 | goto invalid_exclusion; |
026f2c7a | 9080 | ++e; |
9081 | } | |
54518c3b | 9082 | |
026f2c7a | 9083 | q = p + 1; |
9084 | while (*q != ';') | |
9085 | { | |
9086 | const char *arg; | |
9087 | int len = e - this_arg; | |
54518c3b | 9088 | |
026f2c7a | 9089 | if (*q == '\0') |
5e8f3c31 | 9090 | goto invalid_select; |
54518c3b | 9091 | |
026f2c7a | 9092 | arg = q; |
9093 | ||
9094 | while (*q != ' ' && *q != ';') | |
9095 | { | |
9096 | if (*q == '\0') | |
5e8f3c31 | 9097 | goto invalid_select; |
54518c3b | 9098 | ++q; |
026f2c7a | 9099 | } |
54518c3b | 9100 | |
5e8f3c31 | 9101 | if (! strncmp (arg, this_arg, |
9102 | (len < q - arg) ? q - arg : len) | |
9103 | || default_arg (this_arg, e - this_arg)) | |
026f2c7a | 9104 | { |
9105 | mp = 1; | |
9106 | break; | |
9107 | } | |
54518c3b | 9108 | |
026f2c7a | 9109 | if (*q == ' ') |
9110 | ++q; | |
9111 | } | |
2c815aff | 9112 | |
026f2c7a | 9113 | if (! mp) |
9114 | m = 0; | |
54518c3b | 9115 | |
026f2c7a | 9116 | if (*e == ' ') |
9117 | ++e; | |
9118 | } | |
9119 | ||
9120 | if (m) | |
9121 | { | |
9122 | skip = 1; | |
9123 | break; | |
9124 | } | |
9125 | ||
9126 | if (*e != '\0') | |
9127 | ++e; | |
9128 | } | |
9129 | } | |
54518c3b | 9130 | |
9131 | if (! skip) | |
026f2c7a | 9132 | { |
9133 | /* If this is a duplicate, skip it. */ | |
5e8f3c31 | 9134 | skip = (last_path != 0 |
9135 | && (unsigned int) (p - this_path) == last_path_len | |
82715bcd | 9136 | && ! filename_ncmp (last_path, this_path, last_path_len)); |
9577d478 | 9137 | |
026f2c7a | 9138 | last_path = this_path; |
9139 | last_path_len = p - this_path; | |
54518c3b | 9140 | } |
9577d478 | 9141 | |
48583106 | 9142 | /* If this directory requires any default arguments, we can skip |
9143 | it. We will already have printed a directory identical to | |
9144 | this one which does not require that default argument. */ | |
9145 | if (! skip) | |
9146 | { | |
e772a198 | 9147 | const char *q; |
48583106 | 9148 | |
9149 | q = p + 1; | |
9150 | while (*q != ';') | |
9151 | { | |
e772a198 | 9152 | const char *arg; |
48583106 | 9153 | |
9154 | if (*q == '\0') | |
5e8f3c31 | 9155 | goto invalid_select; |
48583106 | 9156 | |
9157 | if (*q == '!') | |
9158 | arg = NULL; | |
9159 | else | |
9160 | arg = q; | |
9161 | ||
9162 | while (*q != ' ' && *q != ';') | |
9163 | { | |
9164 | if (*q == '\0') | |
5e8f3c31 | 9165 | goto invalid_select; |
48583106 | 9166 | ++q; |
9167 | } | |
9168 | ||
9169 | if (arg != NULL | |
9170 | && default_arg (arg, q - arg)) | |
9171 | { | |
9172 | skip = 1; | |
9173 | break; | |
9174 | } | |
9175 | ||
9176 | if (*q == ' ') | |
9177 | ++q; | |
9178 | } | |
9179 | } | |
9180 | ||
9577d478 | 9181 | if (! skip) |
9182 | { | |
e772a198 | 9183 | const char *p1; |
9577d478 | 9184 | |
c954ff02 | 9185 | for (p1 = last_path; p1 < p && *p1 != ':'; p1++) |
9577d478 | 9186 | putchar (*p1); |
9187 | putchar (';'); | |
9188 | } | |
9189 | ||
9190 | ++p; | |
9191 | while (*p != ';') | |
9192 | { | |
9193 | int use_arg; | |
9194 | ||
9195 | if (*p == '\0') | |
5e8f3c31 | 9196 | goto invalid_select; |
9577d478 | 9197 | |
9198 | if (skip) | |
9199 | { | |
9200 | ++p; | |
9201 | continue; | |
9202 | } | |
9203 | ||
9204 | use_arg = *p != '!'; | |
9205 | ||
9206 | if (use_arg) | |
9207 | putchar ('@'); | |
9208 | ||
9209 | while (*p != ' ' && *p != ';') | |
9210 | { | |
9211 | if (*p == '\0') | |
5e8f3c31 | 9212 | goto invalid_select; |
9577d478 | 9213 | if (use_arg) |
9214 | putchar (*p); | |
9215 | ++p; | |
9216 | } | |
9217 | ||
9218 | if (*p == ' ') | |
9219 | ++p; | |
9220 | } | |
9221 | ||
9222 | if (! skip) | |
3d97d965 | 9223 | { |
d4ea3b1f | 9224 | /* If there are extra options, print them now. */ |
3d97d965 | 9225 | if (multilib_extra && *multilib_extra) |
9226 | { | |
9227 | int print_at = TRUE; | |
e772a198 | 9228 | const char *q; |
3d97d965 | 9229 | |
9230 | for (q = multilib_extra; *q != '\0'; q++) | |
9231 | { | |
9232 | if (*q == ' ') | |
9233 | print_at = TRUE; | |
9234 | else | |
9235 | { | |
9236 | if (print_at) | |
9237 | putchar ('@'); | |
9238 | putchar (*q); | |
9239 | print_at = FALSE; | |
9240 | } | |
9241 | } | |
9242 | } | |
2c815aff | 9243 | |
3d97d965 | 9244 | putchar ('\n'); |
9245 | } | |
9577d478 | 9246 | |
9247 | ++p; | |
9248 | } | |
9249 | } | |
c21b3276 | 9250 | \f |
0305c755 | 9251 | /* getenv built-in spec function. |
9252 | ||
e1a390d6 | 9253 | Returns the value of the environment variable given by its first argument, |
9254 | concatenated with the second argument. If the variable is not defined, a | |
9255 | fatal error is issued unless such undefs are internally allowed, in which | |
9256 | case the variable name is used as the variable value. */ | |
0305c755 | 9257 | |
9258 | static const char * | |
9259 | getenv_spec_function (int argc, const char **argv) | |
9260 | { | |
26a4a13d | 9261 | const char *value; |
e1a390d6 | 9262 | const char *varname; |
9263 | ||
4b20bbaf | 9264 | char *result; |
9265 | char *ptr; | |
9266 | size_t len; | |
0305c755 | 9267 | |
9268 | if (argc != 2) | |
9269 | return NULL; | |
9270 | ||
e1a390d6 | 9271 | varname = argv[0]; |
9272 | value = env.get (varname); | |
9273 | ||
9274 | if (!value && spec_undefvar_allowed) | |
9275 | value = varname; | |
9276 | ||
0305c755 | 9277 | if (!value) |
c05be867 | 9278 | fatal_error (input_location, |
e1a390d6 | 9279 | "environment variable %qs not defined", varname); |
0305c755 | 9280 | |
4b20bbaf | 9281 | /* We have to escape every character of the environment variable so |
f0b5f617 | 9282 | they are not interpreted as active spec characters. A |
9283 | particularly painful case is when we are reading a variable | |
4b20bbaf | 9284 | holding a windows path complete with \ separators. */ |
9285 | len = strlen (value) * 2 + strlen (argv[1]) + 1; | |
25a1c410 | 9286 | result = XNEWVAR (char, len); |
4b20bbaf | 9287 | for (ptr = result; *value; ptr += 2) |
9288 | { | |
9289 | ptr[0] = '\\'; | |
9290 | ptr[1] = *value++; | |
9291 | } | |
48e1416a | 9292 | |
4b20bbaf | 9293 | strcpy (ptr, argv[1]); |
48e1416a | 9294 | |
4b20bbaf | 9295 | return result; |
0305c755 | 9296 | } |
9297 | ||
c21b3276 | 9298 | /* if-exists built-in spec function. |
9299 | ||
9300 | Checks to see if the file specified by the absolute pathname in | |
9301 | ARGS exists. Returns that pathname if found. | |
9302 | ||
9303 | The usual use for this function is to check for a library file | |
9304 | (whose name has been expanded with %s). */ | |
9305 | ||
9306 | static const char * | |
952f0048 | 9307 | if_exists_spec_function (int argc, const char **argv) |
c21b3276 | 9308 | { |
9309 | /* Must have only one argument. */ | |
a5c088d4 | 9310 | if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK)) |
c21b3276 | 9311 | return argv[0]; |
9312 | ||
9313 | return NULL; | |
9314 | } | |
68d74c02 | 9315 | |
9316 | /* if-exists-else built-in spec function. | |
9317 | ||
9318 | This is like if-exists, but takes an additional argument which | |
9319 | is returned if the first argument does not exist. */ | |
9320 | ||
9321 | static const char * | |
952f0048 | 9322 | if_exists_else_spec_function (int argc, const char **argv) |
68d74c02 | 9323 | { |
9324 | /* Must have exactly two arguments. */ | |
9325 | if (argc != 2) | |
9326 | return NULL; | |
9327 | ||
a5c088d4 | 9328 | if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK)) |
68d74c02 | 9329 | return argv[0]; |
9330 | ||
9331 | return argv[1]; | |
9332 | } | |
2288041e | 9333 | |
9e46467d | 9334 | /* sanitize built-in spec function. |
9335 | ||
9336 | This returns non-NULL, if sanitizing address, thread or | |
9337 | any of the undefined behavior sanitizers. */ | |
9338 | ||
9339 | static const char * | |
9340 | sanitize_spec_function (int argc, const char **argv) | |
9341 | { | |
9342 | if (argc != 1) | |
9343 | return NULL; | |
9344 | ||
9345 | if (strcmp (argv[0], "address") == 0) | |
3e1dd01e | 9346 | return (flag_sanitize & SANITIZE_USER_ADDRESS) ? "" : NULL; |
9347 | if (strcmp (argv[0], "kernel-address") == 0) | |
9348 | return (flag_sanitize & SANITIZE_KERNEL_ADDRESS) ? "" : NULL; | |
9e46467d | 9349 | if (strcmp (argv[0], "thread") == 0) |
9350 | return (flag_sanitize & SANITIZE_THREAD) ? "" : NULL; | |
9351 | if (strcmp (argv[0], "undefined") == 0) | |
c8cc2651 | 9352 | return ((flag_sanitize & (SANITIZE_UNDEFINED | SANITIZE_NONDEFAULT)) |
7311d7c1 | 9353 | && !flag_sanitize_undefined_trap_on_error) ? "" : NULL; |
f8ff4a27 | 9354 | if (strcmp (argv[0], "leak") == 0) |
9355 | return ((flag_sanitize | |
9356 | & (SANITIZE_ADDRESS | SANITIZE_LEAK | SANITIZE_THREAD)) | |
9357 | == SANITIZE_LEAK) ? "" : NULL; | |
9e46467d | 9358 | return NULL; |
9359 | } | |
9360 | ||
2288041e | 9361 | /* replace-outfile built-in spec function. |
9b1f316f | 9362 | |
9363 | This looks for the first argument in the outfiles array's name and | |
9364 | replaces it with the second argument. */ | |
2288041e | 9365 | |
9366 | static const char * | |
9367 | replace_outfile_spec_function (int argc, const char **argv) | |
9368 | { | |
9369 | int i; | |
9370 | /* Must have exactly two arguments. */ | |
9371 | if (argc != 2) | |
9372 | abort (); | |
2f2c6aee | 9373 | |
2288041e | 9374 | for (i = 0; i < n_infiles; i++) |
9375 | { | |
82715bcd | 9376 | if (outfiles[i] && !filename_cmp (outfiles[i], argv[0])) |
2288041e | 9377 | outfiles[i] = xstrdup (argv[1]); |
9378 | } | |
9379 | return NULL; | |
9380 | } | |
9381 | ||
8127ab5d | 9382 | /* remove-outfile built-in spec function. |
9383 | * | |
9384 | * This looks for the first argument in the outfiles array's name and | |
9385 | * removes it. */ | |
9386 | ||
9387 | static const char * | |
9388 | remove_outfile_spec_function (int argc, const char **argv) | |
9389 | { | |
9390 | int i; | |
9391 | /* Must have exactly one argument. */ | |
9392 | if (argc != 1) | |
9393 | abort (); | |
9394 | ||
9395 | for (i = 0; i < n_infiles; i++) | |
9396 | { | |
82715bcd | 9397 | if (outfiles[i] && !filename_cmp (outfiles[i], argv[0])) |
8127ab5d | 9398 | outfiles[i] = NULL; |
9399 | } | |
9400 | return NULL; | |
9401 | } | |
9402 | ||
2f2c6aee | 9403 | /* Given two version numbers, compares the two numbers. |
9b1f316f | 9404 | A version number must match the regular expression |
9405 | ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))* | |
9406 | */ | |
9407 | static int | |
9408 | compare_version_strings (const char *v1, const char *v2) | |
9409 | { | |
9410 | int rresult; | |
9411 | regex_t r; | |
2f2c6aee | 9412 | |
9b1f316f | 9413 | if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$", |
9414 | REG_EXTENDED | REG_NOSUB) != 0) | |
9415 | abort (); | |
9416 | rresult = regexec (&r, v1, 0, NULL, 0); | |
9417 | if (rresult == REG_NOMATCH) | |
c05be867 | 9418 | fatal_error (input_location, "invalid version number %qs", v1); |
9b1f316f | 9419 | else if (rresult != 0) |
9420 | abort (); | |
9421 | rresult = regexec (&r, v2, 0, NULL, 0); | |
9422 | if (rresult == REG_NOMATCH) | |
c05be867 | 9423 | fatal_error (input_location, "invalid version number %qs", v2); |
9b1f316f | 9424 | else if (rresult != 0) |
9425 | abort (); | |
9426 | ||
9427 | return strverscmp (v1, v2); | |
9428 | } | |
9429 | ||
9430 | ||
9431 | /* version_compare built-in spec function. | |
9432 | ||
9433 | This takes an argument of the following form: | |
9434 | ||
9435 | <comparison-op> <arg1> [<arg2>] <switch> <result> | |
9436 | ||
9437 | and produces "result" if the comparison evaluates to true, | |
9438 | and nothing if it doesn't. | |
9439 | ||
9440 | The supported <comparison-op> values are: | |
2f2c6aee | 9441 | |
9b1f316f | 9442 | >= true if switch is a later (or same) version than arg1 |
9443 | !> opposite of >= | |
9444 | < true if switch is an earlier version than arg1 | |
9445 | !< opposite of < | |
9446 | >< true if switch is arg1 or later, and earlier than arg2 | |
9447 | <> true if switch is earlier than arg1 or is arg2 or later | |
9448 | ||
9449 | If the switch is not present, the condition is false unless | |
9450 | the first character of the <comparison-op> is '!'. | |
9451 | ||
9452 | For example, | |
9453 | %:version-compare(>= 10.3 mmacosx-version-min= -lmx) | |
9454 | adds -lmx if -mmacosx-version-min=10.3.9 was passed. */ | |
9455 | ||
9456 | static const char * | |
9457 | version_compare_spec_function (int argc, const char **argv) | |
9458 | { | |
9459 | int comp1, comp2; | |
9460 | size_t switch_len; | |
9461 | const char *switch_value = NULL; | |
9462 | int nargs = 1, i; | |
9463 | bool result; | |
9464 | ||
9465 | if (argc < 3) | |
c05be867 | 9466 | fatal_error (input_location, "too few arguments to %%:version-compare"); |
9b1f316f | 9467 | if (argv[0][0] == '\0') |
9468 | abort (); | |
9469 | if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!') | |
9470 | nargs = 2; | |
9471 | if (argc != nargs + 3) | |
c05be867 | 9472 | fatal_error (input_location, "too many arguments to %%:version-compare"); |
9b1f316f | 9473 | |
9474 | switch_len = strlen (argv[nargs + 1]); | |
9475 | for (i = 0; i < n_switches; i++) | |
9476 | if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len) | |
9477 | && check_live_switch (i, switch_len)) | |
9478 | switch_value = switches[i].part1 + switch_len; | |
9479 | ||
9480 | if (switch_value == NULL) | |
9481 | comp1 = comp2 = -1; | |
9482 | else | |
9483 | { | |
9484 | comp1 = compare_version_strings (switch_value, argv[1]); | |
9485 | if (nargs == 2) | |
9486 | comp2 = compare_version_strings (switch_value, argv[2]); | |
9487 | else | |
9488 | comp2 = -1; /* This value unused. */ | |
9489 | } | |
9490 | ||
9491 | switch (argv[0][0] << 8 | argv[0][1]) | |
9492 | { | |
9493 | case '>' << 8 | '=': | |
9494 | result = comp1 >= 0; | |
9495 | break; | |
9496 | case '!' << 8 | '<': | |
9497 | result = comp1 >= 0 || switch_value == NULL; | |
9498 | break; | |
9499 | case '<' << 8: | |
9500 | result = comp1 < 0; | |
9501 | break; | |
9502 | case '!' << 8 | '>': | |
9503 | result = comp1 < 0 || switch_value == NULL; | |
9504 | break; | |
9505 | case '>' << 8 | '<': | |
9506 | result = comp1 >= 0 && comp2 < 0; | |
9507 | break; | |
9508 | case '<' << 8 | '>': | |
9509 | result = comp1 < 0 || comp2 >= 0; | |
9510 | break; | |
2f2c6aee | 9511 | |
9b1f316f | 9512 | default: |
c05be867 | 9513 | fatal_error (input_location, |
9514 | "unknown operator %qs in %%:version-compare", argv[0]); | |
9b1f316f | 9515 | } |
9516 | if (! result) | |
9517 | return NULL; | |
9518 | ||
9519 | return argv[nargs + 2]; | |
9520 | } | |
1e8e9920 | 9521 | |
9522 | /* %:include builtin spec function. This differs from %include in that it | |
9523 | can be nested inside a spec, and thus be conditionalized. It takes | |
9524 | one argument, the filename, and looks for it in the startfile path. | |
9525 | The result is always NULL, i.e. an empty expansion. */ | |
9526 | ||
9527 | static const char * | |
9528 | include_spec_function (int argc, const char **argv) | |
9529 | { | |
9530 | char *file; | |
9531 | ||
9532 | if (argc != 1) | |
9533 | abort (); | |
9534 | ||
f9ebe19f | 9535 | file = find_a_file (&startfile_prefixes, argv[0], R_OK, true); |
556cfe53 | 9536 | read_specs (file ? file : argv[0], false, false); |
1e8e9920 | 9537 | |
9538 | return NULL; | |
9539 | } | |
ceac8e8c | 9540 | |
d6bff3e6 | 9541 | /* %:find-file spec function. This function replaces its argument by |
9d75589a | 9542 | the file found through find_file, that is the -print-file-name gcc |
19bc000d | 9543 | program option. */ |
9544 | static const char * | |
d6bff3e6 | 9545 | find_file_spec_function (int argc, const char **argv) |
19bc000d | 9546 | { |
9547 | const char *file; | |
9548 | ||
9549 | if (argc != 1) | |
9550 | abort (); | |
9551 | ||
9552 | file = find_file (argv[0]); | |
9553 | return file; | |
9554 | } | |
9555 | ||
9556 | ||
d6bff3e6 | 9557 | /* %:find-plugindir spec function. This function replaces its argument |
9d75589a | 9558 | by the -iplugindir=<dir> option. `dir' is found through find_file, that |
d6bff3e6 | 9559 | is the -print-file-name gcc program option. */ |
9560 | static const char * | |
9561 | find_plugindir_spec_function (int argc, const char **argv ATTRIBUTE_UNUSED) | |
9562 | { | |
9563 | const char *option; | |
9564 | ||
9565 | if (argc != 0) | |
9566 | abort (); | |
9567 | ||
9568 | option = concat ("-iplugindir=", find_file ("plugin"), NULL); | |
9569 | return option; | |
9570 | } | |
9571 | ||
9572 | ||
ceac8e8c | 9573 | /* %:print-asm-header spec function. Print a banner to say that the |
9574 | following output is from the assembler. */ | |
9575 | ||
9576 | static const char * | |
9577 | print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED, | |
9578 | const char **argv ATTRIBUTE_UNUSED) | |
9579 | { | |
666137bc | 9580 | printf (_("Assembler options\n=================\n\n")); |
ceac8e8c | 9581 | printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n")); |
9582 | fflush (stdout); | |
9583 | return NULL; | |
9584 | } | |
71278019 | 9585 | |
0f41df2b | 9586 | /* Get a random number for -frandom-seed */ |
9845d120 | 9587 | |
0f41df2b | 9588 | static unsigned HOST_WIDE_INT |
9589 | get_random_number (void) | |
9845d120 | 9590 | { |
0f41df2b | 9591 | unsigned HOST_WIDE_INT ret = 0; |
9592 | int fd; | |
9593 | ||
9594 | fd = open ("/dev/urandom", O_RDONLY); | |
9595 | if (fd >= 0) | |
9596 | { | |
9597 | read (fd, &ret, sizeof (HOST_WIDE_INT)); | |
9598 | close (fd); | |
9599 | if (ret) | |
9600 | return ret; | |
9601 | } | |
9845d120 | 9602 | |
9603 | /* Get some more or less random data. */ | |
9604 | #ifdef HAVE_GETTIMEOFDAY | |
9605 | { | |
9606 | struct timeval tv; | |
9607 | ||
9608 | gettimeofday (&tv, NULL); | |
9609 | ret = tv.tv_sec * 1000 + tv.tv_usec / 1000; | |
9610 | } | |
9611 | #else | |
9612 | { | |
9613 | time_t now = time (NULL); | |
9614 | ||
9615 | if (now != (time_t)-1) | |
9616 | ret = (unsigned) now; | |
9617 | } | |
9618 | #endif | |
9619 | ||
9af5ce0c | 9620 | return ret ^ getpid (); |
9845d120 | 9621 | } |
9622 | ||
71278019 | 9623 | /* %:compare-debug-dump-opt spec function. Save the last argument, |
9624 | expected to be the last -fdump-final-insns option, or generate a | |
9625 | temporary. */ | |
9626 | ||
9627 | static const char * | |
9628 | compare_debug_dump_opt_spec_function (int arg, | |
9629 | const char **argv ATTRIBUTE_UNUSED) | |
9630 | { | |
ce0fdb91 | 9631 | char *ret; |
71278019 | 9632 | char *name; |
9633 | int which; | |
9845d120 | 9634 | static char random_seed[HOST_BITS_PER_WIDE_INT / 4 + 3]; |
71278019 | 9635 | |
9636 | if (arg != 0) | |
c05be867 | 9637 | fatal_error (input_location, |
9638 | "too many arguments to %%:compare-debug-dump-opt"); | |
71278019 | 9639 | |
71278019 | 9640 | do_spec_2 ("%{fdump-final-insns=*:%*}"); |
9641 | do_spec_1 (" ", 0, NULL); | |
9642 | ||
f1f41a6c | 9643 | if (argbuf.length () > 0 |
9644 | && strcmp (argv[argbuf.length () - 1], ".")) | |
71278019 | 9645 | { |
9845d120 | 9646 | if (!compare_debug) |
9647 | return NULL; | |
9648 | ||
f1f41a6c | 9649 | name = xstrdup (argv[argbuf.length () - 1]); |
71278019 | 9650 | ret = NULL; |
9651 | } | |
9652 | else | |
9653 | { | |
9845d120 | 9654 | const char *ext = NULL; |
9655 | ||
f1f41a6c | 9656 | if (argbuf.length () > 0) |
9845d120 | 9657 | { |
9658 | do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}"); | |
9659 | ext = ".gkd"; | |
9660 | } | |
9661 | else if (!compare_debug) | |
9662 | return NULL; | |
9663 | else | |
9664 | do_spec_2 ("%g.gkd"); | |
71278019 | 9665 | |
71278019 | 9666 | do_spec_1 (" ", 0, NULL); |
71278019 | 9667 | |
f1f41a6c | 9668 | gcc_assert (argbuf.length () > 0); |
71278019 | 9669 | |
f1f41a6c | 9670 | name = concat (argbuf.last (), ext, NULL); |
9845d120 | 9671 | |
9672 | ret = concat ("-fdump-final-insns=", name, NULL); | |
71278019 | 9673 | } |
9674 | ||
9675 | which = compare_debug < 0; | |
9676 | debug_check_temp_file[which] = name; | |
9677 | ||
9845d120 | 9678 | if (!which) |
9679 | { | |
0f41df2b | 9680 | unsigned HOST_WIDE_INT value = get_random_number (); |
9845d120 | 9681 | |
9682 | sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value); | |
9683 | } | |
9684 | ||
9685 | if (*random_seed) | |
ce0fdb91 | 9686 | { |
9687 | char *tmp = ret; | |
9688 | ret = concat ("%{!frandom-seed=*:-frandom-seed=", random_seed, "} ", | |
9689 | ret, NULL); | |
9690 | free (tmp); | |
9691 | } | |
9845d120 | 9692 | |
9693 | if (which) | |
9694 | *random_seed = 0; | |
71278019 | 9695 | |
9696 | return ret; | |
9697 | } | |
9698 | ||
9699 | static const char *debug_auxbase_opt; | |
9700 | ||
9701 | /* %:compare-debug-self-opt spec function. Expands to the options | |
9702 | that are to be passed in the second compilation of | |
9703 | compare-debug. */ | |
9704 | ||
9705 | static const char * | |
9706 | compare_debug_self_opt_spec_function (int arg, | |
9707 | const char **argv ATTRIBUTE_UNUSED) | |
9708 | { | |
9709 | if (arg != 0) | |
c05be867 | 9710 | fatal_error (input_location, |
9711 | "too many arguments to %%:compare-debug-self-opt"); | |
71278019 | 9712 | |
9713 | if (compare_debug >= 0) | |
9714 | return NULL; | |
9715 | ||
9716 | do_spec_2 ("%{c|S:%{o*:%*}}"); | |
9717 | do_spec_1 (" ", 0, NULL); | |
9718 | ||
f1f41a6c | 9719 | if (argbuf.length () > 0) |
71278019 | 9720 | debug_auxbase_opt = concat ("-auxbase-strip ", |
f1f41a6c | 9721 | argbuf.last (), |
71278019 | 9722 | NULL); |
9723 | else | |
9724 | debug_auxbase_opt = NULL; | |
9725 | ||
9726 | return concat ("\ | |
9727 | %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \ | |
9728 | %<fdump-final-insns=* -w -S -o %j \ | |
9729 | %{!fcompare-debug-second:-fcompare-debug-second} \ | |
9730 | ", compare_debug_opt, NULL); | |
9731 | } | |
9732 | ||
9733 | /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase | |
9734 | options that are to be passed in the second compilation of | |
9735 | compare-debug. It expects, as an argument, the basename of the | |
9736 | current input file name, with the .gk suffix appended to it. */ | |
9737 | ||
9738 | static const char * | |
9739 | compare_debug_auxbase_opt_spec_function (int arg, | |
9740 | const char **argv) | |
9741 | { | |
9742 | char *name; | |
9743 | int len; | |
9744 | ||
9745 | if (arg == 0) | |
c05be867 | 9746 | fatal_error (input_location, |
9747 | "too few arguments to %%:compare-debug-auxbase-opt"); | |
71278019 | 9748 | |
9749 | if (arg != 1) | |
c05be867 | 9750 | fatal_error (input_location, |
9751 | "too many arguments to %%:compare-debug-auxbase-opt"); | |
71278019 | 9752 | |
9753 | if (compare_debug >= 0) | |
9754 | return NULL; | |
9755 | ||
9756 | len = strlen (argv[0]); | |
9757 | if (len < 3 || strcmp (argv[0] + len - 3, ".gk") != 0) | |
c05be867 | 9758 | fatal_error (input_location, "argument to %%:compare-debug-auxbase-opt " |
a922df2e | 9759 | "does not end in .gk"); |
71278019 | 9760 | |
9761 | if (debug_auxbase_opt) | |
9762 | return debug_auxbase_opt; | |
9763 | ||
9764 | #define OPT "-auxbase " | |
9765 | ||
9766 | len -= 3; | |
9767 | name = (char*) xmalloc (sizeof (OPT) + len); | |
9768 | memcpy (name, OPT, sizeof (OPT) - 1); | |
9769 | memcpy (name + sizeof (OPT) - 1, argv[0], len); | |
9770 | name[sizeof (OPT) - 1 + len] = '\0'; | |
9771 | ||
9845d120 | 9772 | #undef OPT |
9773 | ||
71278019 | 9774 | return name; |
9775 | } | |
280f8649 | 9776 | |
9777 | /* %:pass-through-libs spec function. Finds all -l options and input | |
9778 | file names in the lib spec passed to it, and makes a list of them | |
9779 | prepended with the plugin option to cause them to be passed through | |
9780 | to the final link after all the new object files have been added. */ | |
9781 | ||
9782 | const char * | |
9783 | pass_through_libs_spec_func (int argc, const char **argv) | |
9784 | { | |
9785 | char *prepended = xstrdup (" "); | |
9786 | int n; | |
9787 | /* Shlemiel the painter's algorithm. Innately horrible, but at least | |
9788 | we know that there will never be more than a handful of strings to | |
9789 | concat, and it's only once per run, so it's not worth optimising. */ | |
9790 | for (n = 0; n < argc; n++) | |
9791 | { | |
9792 | char *old = prepended; | |
9793 | /* Anything that isn't an option is a full path to an output | |
9794 | file; pass it through if it ends in '.a'. Among options, | |
9795 | pass only -l. */ | |
9796 | if (argv[n][0] == '-' && argv[n][1] == 'l') | |
9797 | { | |
9798 | const char *lopt = argv[n] + 2; | |
9799 | /* Handle both joined and non-joined -l options. If for any | |
9800 | reason there's a trailing -l with no joined or following | |
9801 | arg just discard it. */ | |
9802 | if (!*lopt && ++n >= argc) | |
9803 | break; | |
9804 | else if (!*lopt) | |
9805 | lopt = argv[n]; | |
9806 | prepended = concat (prepended, "-plugin-opt=-pass-through=-l", | |
9807 | lopt, " ", NULL); | |
9808 | } | |
9809 | else if (!strcmp (".a", argv[n] + strlen (argv[n]) - 2)) | |
9810 | { | |
9811 | prepended = concat (prepended, "-plugin-opt=-pass-through=", | |
9812 | argv[n], " ", NULL); | |
9813 | } | |
9814 | if (prepended != old) | |
9815 | free (old); | |
9816 | } | |
9817 | return prepended; | |
9818 | } | |
b35329c7 | 9819 | |
9820 | /* %:replace-extension spec function. Replaces the extension of the | |
9821 | first argument with the second argument. */ | |
9822 | ||
9823 | const char * | |
9824 | replace_extension_spec_func (int argc, const char **argv) | |
9825 | { | |
9826 | char *name; | |
9827 | char *p; | |
9828 | char *result; | |
9829 | int i; | |
9830 | ||
9831 | if (argc != 2) | |
c05be867 | 9832 | fatal_error (input_location, "too few arguments to %%:replace-extension"); |
b35329c7 | 9833 | |
9834 | name = xstrdup (argv[0]); | |
9835 | ||
9af5ce0c | 9836 | for (i = strlen (name) - 1; i >= 0; i--) |
b35329c7 | 9837 | if (IS_DIR_SEPARATOR (name[i])) |
9838 | break; | |
9839 | ||
9840 | p = strrchr (name + i + 1, '.'); | |
9841 | if (p != NULL) | |
9842 | *p = '\0'; | |
9843 | ||
9844 | result = concat (name, argv[1], NULL); | |
9845 | ||
9846 | free (name); | |
9847 | return result; | |
9848 | } | |
40c059b1 | 9849 | |
5814ddcd | 9850 | /* Returns "" if ARGV[ARGC - 2] is greater than ARGV[ARGC-1]. |
1b316d69 | 9851 | Otherwise, return NULL. */ |
9852 | ||
9853 | static const char * | |
9854 | greater_than_spec_func (int argc, const char **argv) | |
9855 | { | |
9856 | char *converted; | |
9857 | ||
9858 | if (argc == 1) | |
9859 | return NULL; | |
9860 | ||
5814ddcd | 9861 | gcc_assert (argc >= 2); |
1b316d69 | 9862 | |
5814ddcd | 9863 | long arg = strtol (argv[argc - 2], &converted, 10); |
9864 | gcc_assert (converted != argv[argc - 2]); | |
1b316d69 | 9865 | |
5814ddcd | 9866 | long lim = strtol (argv[argc - 1], &converted, 10); |
9867 | gcc_assert (converted != argv[argc - 1]); | |
1b316d69 | 9868 | |
9869 | if (arg > lim) | |
9870 | return ""; | |
9871 | ||
9872 | return NULL; | |
9873 | } | |
9874 | ||
14234f77 | 9875 | /* Returns "" if debug_info_level is greater than ARGV[ARGC-1]. |
9876 | Otherwise, return NULL. */ | |
9877 | ||
9878 | static const char * | |
9879 | debug_level_greater_than_spec_func (int argc, const char **argv) | |
9880 | { | |
9881 | char *converted; | |
9882 | ||
9883 | if (argc != 1) | |
9884 | fatal_error (input_location, | |
9885 | "wrong number of arguments to %%:debug-level-gt"); | |
9886 | ||
9887 | long arg = strtol (argv[0], &converted, 10); | |
9888 | gcc_assert (converted != argv[0]); | |
9889 | ||
9890 | if (debug_info_level > arg) | |
9891 | return ""; | |
9892 | ||
9893 | return NULL; | |
9894 | } | |
9895 | ||
40c059b1 | 9896 | /* Insert backslash before spaces in ORIG (usually a file path), to |
9897 | avoid being broken by spec parser. | |
9898 | ||
9899 | This function is needed as do_spec_1 treats white space (' ' and '\t') | |
9900 | as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so, | |
9901 | the file name should be treated as a single argument rather than being | |
9902 | broken into multiple. Solution is to insert '\\' before the space in a | |
9903 | file name. | |
9904 | ||
9905 | This function converts and only converts all occurrence of ' ' | |
9906 | to '\\' + ' ' and '\t' to '\\' + '\t'. For example: | |
9907 | "a b" -> "a\\ b" | |
9908 | "a b" -> "a\\ \\ b" | |
9909 | "a\tb" -> "a\\\tb" | |
9910 | "a\\ b" -> "a\\\\ b" | |
9911 | ||
9912 | orig: input null-terminating string that was allocated by xalloc. The | |
9913 | memory it points to might be freed in this function. Behavior undefined | |
9914 | if ORIG wasn't xalloced or was freed already at entry. | |
9915 | ||
9916 | Return: ORIG if no conversion needed. Otherwise a newly allocated string | |
9917 | that was converted from ORIG. */ | |
9918 | ||
9919 | static char * | |
9920 | convert_white_space (char *orig) | |
9921 | { | |
9922 | int len, number_of_space = 0; | |
9923 | ||
9924 | for (len = 0; orig[len]; len++) | |
9925 | if (orig[len] == ' ' || orig[len] == '\t') number_of_space++; | |
9926 | ||
9927 | if (number_of_space) | |
9928 | { | |
9929 | char *new_spec = (char *) xmalloc (len + number_of_space + 1); | |
9930 | int j, k; | |
9931 | for (j = 0, k = 0; j <= len; j++, k++) | |
9932 | { | |
9933 | if (orig[j] == ' ' || orig[j] == '\t') | |
9934 | new_spec[k++] = '\\'; | |
9935 | new_spec[k] = orig[j]; | |
9936 | } | |
9937 | free (orig); | |
9938 | return new_spec; | |
9939 | } | |
9940 | else | |
9941 | return orig; | |
9942 | } | |
cbbb2345 | 9943 | |
26a4a13d | 9944 | static void |
9945 | path_prefix_reset (path_prefix *prefix) | |
9946 | { | |
9947 | struct prefix_list *iter, *next; | |
9948 | iter = prefix->plist; | |
9949 | while (iter) | |
9950 | { | |
9951 | next = iter->next; | |
9952 | free (const_cast <char *> (iter->prefix)); | |
9953 | XDELETE (iter); | |
9954 | iter = next; | |
9955 | } | |
9956 | prefix->plist = 0; | |
9957 | prefix->max_len = 0; | |
9958 | } | |
9959 | ||
9960 | /* Restore all state within gcc.c to the initial state, so that the driver | |
9961 | code can be safely re-run in-process. | |
9962 | ||
9963 | Many const char * variables are referenced by static specs (see | |
9964 | INIT_STATIC_SPEC above). These variables are restored to their default | |
9965 | values by a simple loop over the static specs. | |
9966 | ||
9967 | For other variables, we directly restore them all to their initial | |
9968 | values (often implicitly 0). | |
9969 | ||
9970 | Free the various obstacks in this file, along with "opts_obstack" | |
9971 | from opts.c. | |
9972 | ||
9973 | This function also restores any environment variables that were changed. */ | |
9974 | ||
9975 | void | |
9976 | driver::finalize () | |
9977 | { | |
9978 | env.restore (); | |
9979 | params_c_finalize (); | |
9980 | diagnostic_finish (global_dc); | |
9981 | ||
9982 | is_cpp_driver = 0; | |
9983 | at_file_supplied = 0; | |
9984 | print_help_list = 0; | |
9985 | print_version = 0; | |
9986 | verbose_only_flag = 0; | |
9987 | print_subprocess_help = 0; | |
9988 | use_ld = NULL; | |
9989 | report_times_to_file = NULL; | |
9990 | target_system_root = DEFAULT_TARGET_SYSTEM_ROOT; | |
9991 | target_system_root_changed = 0; | |
9992 | target_sysroot_suffix = 0; | |
9993 | target_sysroot_hdrs_suffix = 0; | |
9994 | save_temps_flag = SAVE_TEMPS_NONE; | |
9995 | save_temps_prefix = 0; | |
9996 | save_temps_length = 0; | |
9997 | spec_machine = DEFAULT_TARGET_MACHINE; | |
9998 | greatest_status = 1; | |
9999 | ||
10000 | finalize_options_struct (&global_options); | |
10001 | finalize_options_struct (&global_options_set); | |
10002 | ||
10003 | obstack_free (&obstack, NULL); | |
10004 | obstack_free (&opts_obstack, NULL); /* in opts.c */ | |
10005 | obstack_free (&collect_obstack, NULL); | |
10006 | ||
10007 | link_command_spec = LINK_COMMAND_SPEC; | |
10008 | ||
10009 | obstack_free (&multilib_obstack, NULL); | |
10010 | ||
10011 | user_specs_head = NULL; | |
10012 | user_specs_tail = NULL; | |
10013 | ||
10014 | /* Within the "compilers" vec, the fields "suffix" and "spec" were | |
10015 | statically allocated for the default compilers, but dynamically | |
10016 | allocated for additional compilers. Delete them for the latter. */ | |
10017 | for (int i = n_default_compilers; i < n_compilers; i++) | |
10018 | { | |
10019 | free (const_cast <char *> (compilers[i].suffix)); | |
10020 | free (const_cast <char *> (compilers[i].spec)); | |
10021 | } | |
10022 | XDELETEVEC (compilers); | |
10023 | compilers = NULL; | |
10024 | n_compilers = 0; | |
10025 | ||
10026 | linker_options.truncate (0); | |
10027 | assembler_options.truncate (0); | |
10028 | preprocessor_options.truncate (0); | |
10029 | ||
10030 | path_prefix_reset (&exec_prefixes); | |
10031 | path_prefix_reset (&startfile_prefixes); | |
10032 | path_prefix_reset (&include_prefixes); | |
10033 | ||
10034 | machine_suffix = 0; | |
10035 | just_machine_suffix = 0; | |
10036 | gcc_exec_prefix = 0; | |
10037 | gcc_libexec_prefix = 0; | |
10038 | md_exec_prefix = MD_EXEC_PREFIX; | |
10039 | md_startfile_prefix = MD_STARTFILE_PREFIX; | |
10040 | md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1; | |
10041 | multilib_dir = 0; | |
10042 | multilib_os_dir = 0; | |
10043 | multiarch_dir = 0; | |
10044 | ||
5af71a8f | 10045 | /* Free any specs dynamically-allocated by set_spec. |
10046 | These will be at the head of the list, before the | |
10047 | statically-allocated ones. */ | |
10048 | if (specs) | |
10049 | { | |
10050 | while (specs != static_specs) | |
10051 | { | |
10052 | spec_list *next = specs->next; | |
10053 | free (const_cast <char *> (specs->name)); | |
10054 | XDELETE (specs); | |
10055 | specs = next; | |
10056 | } | |
10057 | specs = 0; | |
10058 | } | |
26a4a13d | 10059 | for (unsigned i = 0; i < ARRAY_SIZE (static_specs); i++) |
10060 | { | |
10061 | spec_list *sl = &static_specs[i]; | |
10062 | if (sl->alloc_p) | |
10063 | { | |
10064 | if (0) | |
10065 | free (const_cast <char *> (*(sl->ptr_spec))); | |
10066 | sl->alloc_p = false; | |
10067 | } | |
10068 | *(sl->ptr_spec) = sl->default_ptr; | |
10069 | } | |
fac94f48 | 10070 | #ifdef EXTRA_SPECS |
26a4a13d | 10071 | extra_specs = NULL; |
fac94f48 | 10072 | #endif |
26a4a13d | 10073 | |
10074 | processing_spec_function = 0; | |
10075 | ||
10076 | argbuf.truncate (0); | |
10077 | ||
10078 | have_c = 0; | |
10079 | have_o = 0; | |
10080 | ||
10081 | temp_names = NULL; | |
10082 | execution_count = 0; | |
10083 | signal_count = 0; | |
10084 | ||
10085 | temp_filename = NULL; | |
10086 | temp_filename_length = 0; | |
10087 | always_delete_queue = NULL; | |
10088 | failure_delete_queue = NULL; | |
10089 | ||
10090 | XDELETEVEC (switches); | |
10091 | switches = NULL; | |
10092 | n_switches = 0; | |
10093 | n_switches_alloc = 0; | |
10094 | ||
10095 | compare_debug = 0; | |
10096 | compare_debug_second = 0; | |
10097 | compare_debug_opt = NULL; | |
10098 | for (int i = 0; i < 2; i++) | |
10099 | { | |
10100 | switches_debug_check[i] = NULL; | |
10101 | n_switches_debug_check[i] = 0; | |
10102 | n_switches_alloc_debug_check[i] = 0; | |
10103 | debug_check_temp_file[i] = NULL; | |
10104 | } | |
10105 | ||
10106 | XDELETEVEC (infiles); | |
10107 | infiles = NULL; | |
10108 | n_infiles = 0; | |
10109 | n_infiles_alloc = 0; | |
10110 | ||
10111 | combine_inputs = false; | |
10112 | added_libraries = 0; | |
10113 | XDELETEVEC (outfiles); | |
10114 | outfiles = NULL; | |
10115 | spec_lang = 0; | |
10116 | last_language_n_infiles = 0; | |
10117 | gcc_input_filename = NULL; | |
10118 | input_file_number = 0; | |
10119 | input_filename_length = 0; | |
10120 | basename_length = 0; | |
10121 | suffixed_basename_length = 0; | |
10122 | input_basename = NULL; | |
10123 | input_suffix = NULL; | |
10124 | /* We don't need to purge "input_stat", just to unset "input_stat_set". */ | |
10125 | input_stat_set = 0; | |
10126 | input_file_compiler = NULL; | |
10127 | arg_going = 0; | |
10128 | delete_this_arg = 0; | |
10129 | this_is_output_file = 0; | |
10130 | this_is_library_file = 0; | |
10131 | this_is_linker_script = 0; | |
10132 | input_from_pipe = 0; | |
10133 | suffix_subst = NULL; | |
10134 | ||
10135 | mdswitches = NULL; | |
10136 | n_mdswitches = 0; | |
10137 | ||
10138 | debug_auxbase_opt = NULL; | |
10139 | ||
10140 | used_arg.finalize (); | |
10141 | } | |
10142 | ||
cbbb2345 | 10143 | /* PR jit/64810. |
10144 | Targets can provide configure-time default options in | |
10145 | OPTION_DEFAULT_SPECS. The jit needs to access these, but | |
10146 | they are expressed in the spec language. | |
10147 | ||
10148 | Run just enough of the driver to be able to expand these | |
10149 | specs, and then call the callback CB on each | |
10150 | such option. The options strings are *without* a leading | |
10151 | '-' character e.g. ("march=x86-64"). Finally, clean up. */ | |
10152 | ||
10153 | void | |
10154 | driver_get_configure_time_options (void (*cb) (const char *option, | |
10155 | void *user_data), | |
10156 | void *user_data) | |
10157 | { | |
10158 | size_t i; | |
10159 | ||
10160 | obstack_init (&obstack); | |
25faed34 | 10161 | init_opts_obstack (); |
cbbb2345 | 10162 | n_switches = 0; |
10163 | ||
10164 | for (i = 0; i < ARRAY_SIZE (option_default_specs); i++) | |
10165 | do_option_spec (option_default_specs[i].name, | |
10166 | option_default_specs[i].spec); | |
10167 | ||
10168 | for (i = 0; (int) i < n_switches; i++) | |
10169 | { | |
10170 | gcc_assert (switches[i].part1); | |
10171 | (*cb) (switches[i].part1, user_data); | |
10172 | } | |
10173 | ||
10174 | obstack_free (&opts_obstack, NULL); | |
10175 | obstack_free (&obstack, NULL); | |
10176 | n_switches = 0; | |
10177 | } |