1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2018 Free Software Foundation, Inc.
4 This file is part of GCC.
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
8 Software Foundation; either version 3, or (at your option) any later
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
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
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.
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". */
32 #include "coretypes.h"
33 #include "multilib.h" /* before tm.h */
40 #include "diagnostic.h"
44 #include "filenames.h"
45 #include "spellcheck.h"
49 /* Manage the manipulation of env vars.
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
57 Hence we need to use "get" for the accessor method, not "getenv". */
62 void init (bool can_restore
, bool debug
);
63 const char *get (const char *name
);
64 void xput (const char *string
);
79 /* The singleton instance of class env_manager. */
81 static env_manager env
;
83 /* Initializer for class env_manager.
85 We can't do this as a constructor since we have a statically
86 allocated instance ("env" above). */
89 env_manager::init (bool can_restore
, bool debug
)
91 m_can_restore
= can_restore
;
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. */
100 env_manager::get (const char *name
)
102 const char *result
= ::getenv (name
);
104 fprintf (stderr
, "env_manager::getenv (%s) -> %s\n", name
, result
);
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. */
114 env_manager::xput (const char *string
)
117 fprintf (stderr
, "env_manager::xput (%s)\n", string
);
119 fnotice (stderr
, "%s\n", string
);
123 char *equals
= strchr (const_cast <char *> (string
), '=');
127 kv
.m_key
= xstrndup (string
, equals
- string
);
128 const char *cur_value
= ::getenv (kv
.m_key
);
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
);
135 ::putenv (CONST_CAST (char *, string
));
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. */
143 env_manager::restore ()
148 gcc_assert (m_can_restore
);
150 FOR_EACH_VEC_ELT_REVERSE (m_keys
, i
, item
)
153 printf ("restoring saved key: %s value: %s\n", item
->m_key
, item
->m_value
);
155 ::setenv (item
->m_key
, item
->m_value
, 1);
157 ::unsetenv (item
->m_key
);
159 free (item
->m_value
);
165 /* Forbid other uses of getenv and putenv. */
166 #if (GCC_VERSION >= 3000)
167 #pragma GCC poison getenv putenv
172 /* By default there is no special suffix for target executables. */
173 #ifdef TARGET_EXECUTABLE_SUFFIX
174 #define HAVE_TARGET_EXECUTABLE_SUFFIX
176 #define TARGET_EXECUTABLE_SUFFIX ""
179 /* By default there is no special suffix for host executables. */
180 #ifdef HOST_EXECUTABLE_SUFFIX
181 #define HAVE_HOST_EXECUTABLE_SUFFIX
183 #define HOST_EXECUTABLE_SUFFIX ""
186 /* By default, the suffix for target object files is ".o". */
187 #ifdef TARGET_OBJECT_SUFFIX
188 #define HAVE_TARGET_OBJECT_SUFFIX
190 #define TARGET_OBJECT_SUFFIX ".o"
193 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
195 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
196 #ifndef LIBRARY_PATH_ENV
197 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
200 /* If a stage of compilation returns an exit status >= 1,
201 compilation of that file ceases. */
203 #define MIN_FATAL_STATUS 1
205 /* Flag set by cppspec.c to 1. */
208 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
209 static bool at_file_supplied
;
211 /* Definition of string containing the arguments given to configure. */
212 #include "configargs.h"
214 /* Flag saying to print the command line options understood by gcc and its
217 static int print_help_list
;
219 /* Flag saying to print the version of gcc and its sub-processes. */
221 static int print_version
;
223 /* Flag indicating whether we should ONLY print the command and
224 arguments (like verbose_flag) without executing the command.
225 Displayed arguments are quoted so that the generated command
226 line is suitable for execution. This is intended for use in
227 shell scripts to capture the driver-generated command line. */
228 static int verbose_only_flag
;
230 /* Flag indicating how to print command line options of sub-processes. */
232 static int print_subprocess_help
;
234 /* Linker suffix passed to -fuse-ld=... */
235 static const char *use_ld
;
237 /* Whether we should report subprocess execution times to a file. */
239 FILE *report_times_to_file
= NULL
;
241 /* Nonzero means place this string before uses of /, so that include
242 and library files can be found in an alternate location. */
244 #ifdef TARGET_SYSTEM_ROOT
245 #define DEFAULT_TARGET_SYSTEM_ROOT (TARGET_SYSTEM_ROOT)
247 #define DEFAULT_TARGET_SYSTEM_ROOT (0)
249 static const char *target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
251 /* Nonzero means pass the updated target_system_root to the compiler. */
253 static int target_system_root_changed
;
255 /* Nonzero means append this string to target_system_root. */
257 static const char *target_sysroot_suffix
= 0;
259 /* Nonzero means append this string to target_system_root for headers. */
261 static const char *target_sysroot_hdrs_suffix
= 0;
263 /* Nonzero means write "temp" files in source directory
264 and use the source file's name in them, and don't delete them. */
266 static enum save_temps
{
267 SAVE_TEMPS_NONE
, /* no -save-temps */
268 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
269 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
272 /* Output file to use to get the object directory for -save-temps=obj */
273 static char *save_temps_prefix
= 0;
274 static size_t save_temps_length
= 0;
276 /* The compiler version. */
278 static const char *compiler_version
;
280 /* The target version. */
282 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
284 /* The target machine. */
286 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
287 static const char *spec_host_machine
= DEFAULT_REAL_TARGET_MACHINE
;
289 /* List of offload targets. Separated by colon. Empty string for
290 -foffload=disable. */
292 static char *offload_targets
= NULL
;
294 /* Nonzero if cross-compiling.
295 When -b is used, the value comes from the `specs' file. */
297 #ifdef CROSS_DIRECTORY_STRUCTURE
298 static const char *cross_compile
= "1";
300 static const char *cross_compile
= "0";
303 /* Greatest exit code of sub-processes that has been encountered up to
305 static int greatest_status
= 1;
307 /* This is the obstack which we use to allocate many strings. */
309 static struct obstack obstack
;
311 /* This is the obstack to build an environment variable to pass to
312 collect2 that describes all of the relevant switches of what to
313 pass the compiler in building the list of pointers to constructors
316 static struct obstack collect_obstack
;
318 /* Forward declaration for prototypes. */
322 static void init_spec (void);
323 static void store_arg (const char *, int, int);
324 static void insert_wrapper (const char *);
325 static char *load_specs (const char *);
326 static void read_specs (const char *, bool, bool);
327 static void set_spec (const char *, const char *, bool);
328 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
329 static char *build_search_list (const struct path_prefix
*, const char *,
331 static void xputenv (const char *);
332 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
334 static int access_check (const char *, int);
335 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
336 static void add_prefix (struct path_prefix
*, const char *, const char *,
338 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
339 const char *, int, int, int);
340 static char *skip_whitespace (char *);
341 static void delete_if_ordinary (const char *);
342 static void delete_temp_files (void);
343 static void delete_failure_queue (void);
344 static void clear_failure_queue (void);
345 static int check_live_switch (int, int);
346 static const char *handle_braces (const char *);
347 static inline bool input_suffix_matches (const char *, const char *);
348 static inline bool switch_matches (const char *, const char *, int);
349 static inline void mark_matching_switches (const char *, const char *, int);
350 static inline void process_marked_switches (void);
351 static const char *process_brace_body (const char *, const char *, const char *, int, int);
352 static const struct spec_function
*lookup_spec_function (const char *);
353 static const char *eval_spec_function (const char *, const char *);
354 static const char *handle_spec_function (const char *, bool *);
355 static char *save_string (const char *, int);
356 static void set_collect_gcc_options (void);
357 static int do_spec_1 (const char *, int, const char *);
358 static int do_spec_2 (const char *);
359 static void do_option_spec (const char *, const char *);
360 static void do_self_spec (const char *);
361 static const char *find_file (const char *);
362 static int is_directory (const char *, bool);
363 static const char *validate_switches (const char *, bool);
364 static void validate_all_switches (void);
365 static inline void validate_switches_from_spec (const char *, bool);
366 static void give_switch (int, int);
367 static int default_arg (const char *, int);
368 static void set_multilib_dir (void);
369 static void print_multilib_info (void);
370 static void perror_with_name (const char *);
371 static void display_help (void);
372 static void add_preprocessor_option (const char *, int);
373 static void add_assembler_option (const char *, int);
374 static void add_linker_option (const char *, int);
375 static void process_command (unsigned int, struct cl_decoded_option
*);
376 static int execute (void);
377 static void alloc_args (void);
378 static void clear_args (void);
379 static void fatal_signal (int);
380 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
381 static void init_gcc_specs (struct obstack
*, const char *, const char *,
384 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
385 static const char *convert_filename (const char *, int, int);
388 static void try_generate_repro (const char **argv
);
389 static const char *getenv_spec_function (int, const char **);
390 static const char *if_exists_spec_function (int, const char **);
391 static const char *if_exists_else_spec_function (int, const char **);
392 static const char *sanitize_spec_function (int, const char **);
393 static const char *replace_outfile_spec_function (int, const char **);
394 static const char *remove_outfile_spec_function (int, const char **);
395 static const char *version_compare_spec_function (int, const char **);
396 static const char *include_spec_function (int, const char **);
397 static const char *find_file_spec_function (int, const char **);
398 static const char *find_plugindir_spec_function (int, const char **);
399 static const char *print_asm_header_spec_function (int, const char **);
400 static const char *compare_debug_dump_opt_spec_function (int, const char **);
401 static const char *compare_debug_self_opt_spec_function (int, const char **);
402 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
403 static const char *pass_through_libs_spec_func (int, const char **);
404 static const char *replace_extension_spec_func (int, const char **);
405 static const char *greater_than_spec_func (int, const char **);
406 static const char *debug_level_greater_than_spec_func (int, const char **);
407 static char *convert_white_space (char *);
409 /* The Specs Language
411 Specs are strings containing lines, each of which (if not blank)
412 is made up of a program name, and arguments separated by spaces.
413 The program name must be exact and start from root, since no path
414 is searched and it is unreliable to depend on the current working directory.
415 Redirection of input or output is not supported; the subprograms must
416 accept filenames saying what files to read and write.
418 In addition, the specs can contain %-sequences to substitute variable text
419 or for conditional text. Here is a table of all defined %-sequences.
420 Note that spaces are not generated automatically around the results of
421 expanding these sequences; therefore, you can concatenate them together
422 or with constant text in a single argument.
424 %% substitute one % into the program name or argument.
425 %i substitute the name of the input file being processed.
426 %b substitute the basename of the input file being processed.
427 This is the substring up to (and not including) the last period
428 and not including the directory unless -save-temps was specified
429 to put temporaries in a different location.
430 %B same as %b, but include the file suffix (text after the last period).
432 substitute a file name that has suffix SUFFIX and is chosen
433 once per compilation, and mark the argument a la %d. To reduce
434 exposure to denial-of-service attacks, the file name is now
435 chosen in a way that is hard to predict even when previously
436 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
437 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
438 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
439 had been pre-processed. Previously, %g was simply substituted
440 with a file name chosen once per compilation, without regard
441 to any appended suffix (which was therefore treated just like
442 ordinary text), making such attacks more likely to succeed.
444 like %g, but if -pipe is in effect, expands simply to "-".
446 like %g, but if -pipe is in effect, expands to nothing. (We have both
447 %| and %m to accommodate differences between system assemblers; see
448 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
450 like %g, but generates a new temporary file name even if %uSUFFIX
453 substitutes the last file name generated with %uSUFFIX, generating a
454 new one if there is no such last file name. In the absence of any
455 %uSUFFIX, this is just like %gSUFFIX, except they don't share
456 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
457 would involve the generation of two distinct file names, one
458 for each `%g.s' and another for each `%U.s'. Previously, %U was
459 simply substituted with a file name chosen for the previous %u,
460 without regard to any appended suffix.
462 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
463 writable, and if save-temps is off; otherwise, substitute the name
464 of a temporary file, just like %u. This temporary file is not
465 meant for communication between processes, but rather as a junk
468 substitutes .SUFFIX for the suffixes of a matched switch's args when
469 it is subsequently output with %*. SUFFIX is terminated by the next
471 %d marks the argument containing or following the %d as a
472 temporary file name, so that file will be deleted if GCC exits
473 successfully. Unlike %g, this contributes no text to the argument.
474 %w marks the argument containing or following the %w as the
475 "output file" of this compilation. This puts the argument
476 into the sequence of arguments that %o will substitute later.
477 %V indicates that this compilation produces no "output file".
479 like %{...} but mark last argument supplied within
480 as a file to be deleted on failure.
481 %o substitutes the names of all the output files, with spaces
482 automatically placed around them. You should write spaces
483 around the %o as well or the results are undefined.
484 %o is for use in the specs for running the linker.
485 Input files whose names have no recognized suffix are not compiled
486 at all, but they are included among the output files, so they will
488 %O substitutes the suffix for object files. Note that this is
489 handled specially when it immediately follows %g, %u, or %U
490 (with or without a suffix argument) because of the need for
491 those to form complete file names. The handling is such that
492 %O is treated exactly as if it had already been substituted,
493 except that %g, %u, and %U do not currently support additional
494 SUFFIX characters following %O as they would following, for
496 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
497 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
498 and -B options) and -imultilib as necessary.
499 %s current argument is the name of a library or startup file of some sort.
500 Search for that file in a standard list of directories
501 and substitute the full name found.
502 %eSTR Print STR as an error message. STR is terminated by a newline.
503 Use this when inconsistent options are detected.
504 %nSTR Print STR as a notice. STR is terminated by a newline.
505 %x{OPTION} Accumulate an option for %X.
506 %X Output the accumulated linker options specified by compilations.
507 %Y Output the accumulated assembler options specified by compilations.
508 %Z Output the accumulated preprocessor options specified by compilations.
509 %a process ASM_SPEC as a spec.
510 This allows config.h to specify part of the spec for running as.
511 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
512 used here. This can be used to run a post-processor after the
513 assembler has done its job.
514 %D Dump out a -L option for each directory in startfile_prefixes.
515 If multilib_dir is set, extra entries are generated with it affixed.
516 %l process LINK_SPEC as a spec.
517 %L process LIB_SPEC as a spec.
518 %M Output multilib_os_dir.
519 %G process LIBGCC_SPEC as a spec.
520 %R Output the concatenation of target_system_root and
521 target_sysroot_suffix.
522 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
523 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
524 %C process CPP_SPEC as a spec.
525 %1 process CC1_SPEC as a spec.
526 %2 process CC1PLUS_SPEC as a spec.
527 %* substitute the variable part of a matched option. (See below.)
528 Note that each comma in the substituted string is replaced by
529 a single space. A space is appended after the last substition
530 unless there is more text in current sequence.
531 %<S remove all occurrences of -S from the command line.
532 Note - this command is position dependent. % commands in the
533 spec string before this one will see -S, % commands in the
534 spec string after this one will not.
535 %>S Similar to "%<S", but keep it in the GCC command line.
536 %<S* remove all occurrences of all switches beginning with -S from the
539 Call the named function FUNCTION, passing it ARGS. ARGS is
540 first processed as a nested spec string, then split into an
541 argument vector in the usual fashion. The function returns
542 a string which is processed as if it had appeared literally
543 as part of the current spec.
544 %{S} substitutes the -S switch, if that switch was given to GCC.
545 If that switch was not specified, this substitutes nothing.
546 Here S is a metasyntactic variable.
547 %{S*} substitutes all the switches specified to GCC whose names start
548 with -S. This is used for -o, -I, etc; switches that take
549 arguments. GCC considers `-o foo' as being one switch whose
550 name starts with `o'. %{o*} would substitute this text,
551 including the space; thus, two arguments would be generated.
552 %{S*&T*} likewise, but preserve order of S and T options (the order
553 of S and T in the spec is not significant). Can be any number
554 of ampersand-separated variables; for each the wild card is
555 optional. Useful for CPP as %{D*&U*&A*}.
557 %{S:X} substitutes X, if the -S switch was given to GCC.
558 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
559 %{S*:X} substitutes X if one or more switches whose names start
560 with -S was given to GCC. Normally X is substituted only
561 once, no matter how many such switches appeared. However,
562 if %* appears somewhere in X, then X will be substituted
563 once for each matching switch, with the %* replaced by the
564 part of that switch that matched the '*'. A space will be
565 appended after the last substition unless there is more
566 text in current sequence.
567 %{.S:X} substitutes X, if processing a file with suffix S.
568 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
569 %{,S:X} substitutes X, if processing a file which will use spec S.
570 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
572 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
573 combined with '!', '.', ',', and '*' as above binding stronger
575 If %* appears in X, all of the alternatives must be starred, and
576 only the first matching alternative is substituted.
577 %{%:function(args):X}
578 Call function named FUNCTION with args ARGS. If the function
579 returns non-NULL, then X is substituted, if it returns
580 NULL, it isn't substituted.
581 %{S:X; if S was given to GCC, substitutes X;
582 T:Y; else if T was given to GCC, substitutes Y;
583 :D} else substitutes D. There can be as many clauses as you need.
584 This may be combined with '.', '!', ',', '|', and '*' as above.
586 %(Spec) processes a specification defined in a specs file as *Spec:
588 The switch matching text S in a %{S}, %{S:X}, or similar construct can use
589 a backslash to ignore the special meaning of the character following it,
590 thus allowing literal matching of a character that is otherwise specially
591 treated. For example, %{std=iso9899\:1999:X} substitutes X if the
592 -std=iso9899:1999 option is given.
594 The conditional text X in a %{S:X} or similar construct may contain
595 other nested % constructs or spaces, or even newlines. They are
596 processed as usual, as described above. Trailing white space in X is
597 ignored. White space may also appear anywhere on the left side of the
598 colon in these constructs, except between . or * and the corresponding
601 The -O, -f, -g, -m, and -W switches are handled specifically in these
602 constructs. If another value of -O or the negated form of a -f, -m, or
603 -W switch is found later in the command line, the earlier switch
604 value is ignored, except with {S*} where S is just one letter; this
605 passes all matching options.
607 The character | at the beginning of the predicate text is used to indicate
608 that a command should be piped to the following command, but only if -pipe
611 Note that it is built into GCC which switches take arguments and which
612 do not. You might think it would be useful to generalize this to
613 allow each compiler's spec to say which switches take arguments. But
614 this cannot be done in a consistent fashion. GCC cannot even decide
615 which input files have been specified without knowing which switches
616 take arguments, and it must know which input files to compile in order
617 to tell which compilers to run.
619 GCC also knows implicitly that arguments starting in `-l' are to be
620 treated as compiler output files, and passed to the linker in their
621 proper position among the other output files. */
623 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
625 /* config.h can define ASM_SPEC to provide extra args to the assembler
626 or extra switch-translations. */
631 /* config.h can define ASM_FINAL_SPEC to run a post processor after
632 the assembler has run. */
633 #ifndef ASM_FINAL_SPEC
634 #define ASM_FINAL_SPEC \
636 objcopy --extract-dwo \
637 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
638 %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\
639 objcopy --strip-dwo \
640 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
644 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
645 or extra switch-translations. */
650 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
651 or extra switch-translations. */
656 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
657 or extra switch-translations. */
659 #define CC1PLUS_SPEC ""
662 /* config.h can define LINK_SPEC to provide extra args to the linker
663 or extra switch-translations. */
668 /* config.h can define LIB_SPEC to override the default libraries. */
670 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
673 /* When using -fsplit-stack we need to wrap pthread_create, in order
674 to initialize the stack guard. We always use wrapping, rather than
675 shared library ordering, and we keep the wrapper function in
676 libgcc. This is not yet a real spec, though it could become one;
677 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
678 only works with GNU ld and gold. */
679 #ifdef HAVE_GOLD_NON_DEFAULT_SPLIT_STACK
680 #define STACK_SPLIT_SPEC " %{fsplit-stack: -fuse-ld=gold --wrap=pthread_create}"
682 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
686 #define STATIC_LIBASAN_LIBS \
687 " %{static-libasan|static:%:include(libsanitizer.spec)%(link_libasan)}"
688 #ifdef LIBASAN_EARLY_SPEC
689 #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
690 #elif defined(HAVE_LD_STATIC_DYNAMIC)
691 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
692 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
695 #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
699 #ifndef LIBASAN_EARLY_SPEC
700 #define LIBASAN_EARLY_SPEC ""
704 #define STATIC_LIBTSAN_LIBS \
705 " %{static-libtsan|static:%:include(libsanitizer.spec)%(link_libtsan)}"
706 #ifdef LIBTSAN_EARLY_SPEC
707 #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
708 #elif defined(HAVE_LD_STATIC_DYNAMIC)
709 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
710 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
713 #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
717 #ifndef LIBTSAN_EARLY_SPEC
718 #define LIBTSAN_EARLY_SPEC ""
722 #define STATIC_LIBLSAN_LIBS \
723 " %{static-liblsan|static:%:include(libsanitizer.spec)%(link_liblsan)}"
724 #ifdef LIBLSAN_EARLY_SPEC
725 #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
726 #elif defined(HAVE_LD_STATIC_DYNAMIC)
727 #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
728 "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
731 #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
735 #ifndef LIBLSAN_EARLY_SPEC
736 #define LIBLSAN_EARLY_SPEC ""
739 #ifndef LIBUBSAN_SPEC
740 #define STATIC_LIBUBSAN_LIBS \
741 " %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}"
742 #ifdef HAVE_LD_STATIC_DYNAMIC
743 #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
744 "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
747 #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
751 /* Linker options for compressed debug sections. */
752 #if HAVE_LD_COMPRESS_DEBUG == 0
753 /* No linker support. */
754 #define LINK_COMPRESS_DEBUG_SPEC \
755 " %{gz*:%e-gz is not supported in this configuration} "
756 #elif HAVE_LD_COMPRESS_DEBUG == 1
757 /* GNU style on input, GNU ld options. Reject, not useful. */
758 #define LINK_COMPRESS_DEBUG_SPEC \
759 " %{gz*:%e-gz is not supported in this configuration} "
760 #elif HAVE_LD_COMPRESS_DEBUG == 2
761 /* GNU style, GNU gold options. */
762 #define LINK_COMPRESS_DEBUG_SPEC \
763 " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
764 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
765 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
766 #elif HAVE_LD_COMPRESS_DEBUG == 3
767 /* ELF gABI style. */
768 #define LINK_COMPRESS_DEBUG_SPEC \
769 " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
770 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
771 " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
773 #error Unknown value for HAVE_LD_COMPRESS_DEBUG.
776 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
779 #if defined(REAL_LIBGCC_SPEC)
780 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
781 #elif defined(LINK_LIBGCC_SPECIAL_1)
782 /* Have gcc do the search for libgcc.a. */
783 #define LIBGCC_SPEC "libgcc.a%s"
785 #define LIBGCC_SPEC "-lgcc"
789 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
790 #ifndef STARTFILE_SPEC
791 #define STARTFILE_SPEC \
792 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
795 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
797 #define ENDFILE_SPEC ""
801 #define LINKER_NAME "collect2"
804 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
805 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
810 /* Assembler options for compressed debug sections. */
811 #if HAVE_LD_COMPRESS_DEBUG < 2
812 /* Reject if the linker cannot write compressed debug sections. */
813 #define ASM_COMPRESS_DEBUG_SPEC \
814 " %{gz*:%e-gz is not supported in this configuration} "
815 #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */
816 #if HAVE_AS_COMPRESS_DEBUG == 0
817 /* No assembler support. Ignore silently. */
818 #define ASM_COMPRESS_DEBUG_SPEC \
820 #elif HAVE_AS_COMPRESS_DEBUG == 1
821 /* GNU style, GNU as options. */
822 #define ASM_COMPRESS_DEBUG_SPEC \
823 " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \
824 " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \
825 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
826 #elif HAVE_AS_COMPRESS_DEBUG == 2
827 /* ELF gABI style. */
828 #define ASM_COMPRESS_DEBUG_SPEC \
829 " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
830 " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
831 " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
833 #error Unknown value for HAVE_AS_COMPRESS_DEBUG.
835 #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */
837 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
839 #ifndef ASM_DEBUG_SPEC
840 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
841 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
842 # define ASM_DEBUG_SPEC \
843 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
844 ? "%{%:debug-level-gt(0):" \
845 "%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \
846 : "%{%:debug-level-gt(0):" \
847 "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
849 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
850 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gstabs}}" ASM_MAP
852 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
853 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gdwarf2}}" ASM_MAP
857 #ifndef ASM_DEBUG_SPEC
858 # define ASM_DEBUG_SPEC ""
861 /* Here is the spec for running the linker, after compiling all files. */
863 /* This is overridable by the target in case they need to specify the
864 -lgcc and -lc order specially, yet not require them to override all
865 of LINK_COMMAND_SPEC. */
866 #ifndef LINK_GCC_C_SEQUENCE_SPEC
867 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
870 #ifndef LINK_SSP_SPEC
871 #ifdef TARGET_LIBC_PROVIDES_SSP
872 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
873 "|fstack-protector-strong|fstack-protector-explicit:}"
875 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
876 "|fstack-protector-strong|fstack-protector-explicit" \
877 ":-lssp_nonshared -lssp}"
881 #ifdef ENABLE_DEFAULT_PIE
882 #define PIE_SPEC "!no-pie"
883 #define NO_FPIE1_SPEC "fno-pie"
884 #define FPIE1_SPEC NO_FPIE1_SPEC ":;"
885 #define NO_FPIE2_SPEC "fno-PIE"
886 #define FPIE2_SPEC NO_FPIE2_SPEC ":;"
887 #define NO_FPIE_SPEC NO_FPIE1_SPEC "|" NO_FPIE2_SPEC
888 #define FPIE_SPEC NO_FPIE_SPEC ":;"
889 #define NO_FPIC1_SPEC "fno-pic"
890 #define FPIC1_SPEC NO_FPIC1_SPEC ":;"
891 #define NO_FPIC2_SPEC "fno-PIC"
892 #define FPIC2_SPEC NO_FPIC2_SPEC ":;"
893 #define NO_FPIC_SPEC NO_FPIC1_SPEC "|" NO_FPIC2_SPEC
894 #define FPIC_SPEC NO_FPIC_SPEC ":;"
895 #define NO_FPIE1_AND_FPIC1_SPEC NO_FPIE1_SPEC "|" NO_FPIC1_SPEC
896 #define FPIE1_OR_FPIC1_SPEC NO_FPIE1_AND_FPIC1_SPEC ":;"
897 #define NO_FPIE2_AND_FPIC2_SPEC NO_FPIE2_SPEC "|" NO_FPIC2_SPEC
898 #define FPIE2_OR_FPIC2_SPEC NO_FPIE2_AND_FPIC2_SPEC ":;"
899 #define NO_FPIE_AND_FPIC_SPEC NO_FPIE_SPEC "|" NO_FPIC_SPEC
900 #define FPIE_OR_FPIC_SPEC NO_FPIE_AND_FPIC_SPEC ":;"
902 #define PIE_SPEC "pie"
903 #define FPIE1_SPEC "fpie"
904 #define NO_FPIE1_SPEC FPIE1_SPEC ":;"
905 #define FPIE2_SPEC "fPIE"
906 #define NO_FPIE2_SPEC FPIE2_SPEC ":;"
907 #define FPIE_SPEC FPIE1_SPEC "|" FPIE2_SPEC
908 #define NO_FPIE_SPEC FPIE_SPEC ":;"
909 #define FPIC1_SPEC "fpic"
910 #define NO_FPIC1_SPEC FPIC1_SPEC ":;"
911 #define FPIC2_SPEC "fPIC"
912 #define NO_FPIC2_SPEC FPIC2_SPEC ":;"
913 #define FPIC_SPEC FPIC1_SPEC "|" FPIC2_SPEC
914 #define NO_FPIC_SPEC FPIC_SPEC ":;"
915 #define FPIE1_OR_FPIC1_SPEC FPIE1_SPEC "|" FPIC1_SPEC
916 #define NO_FPIE1_AND_FPIC1_SPEC FPIE1_OR_FPIC1_SPEC ":;"
917 #define FPIE2_OR_FPIC2_SPEC FPIE2_SPEC "|" FPIC2_SPEC
918 #define NO_FPIE2_AND_FPIC2_SPEC FPIE1_OR_FPIC2_SPEC ":;"
919 #define FPIE_OR_FPIC_SPEC FPIE_SPEC "|" FPIC_SPEC
920 #define NO_FPIE_AND_FPIC_SPEC FPIE_OR_FPIC_SPEC ":;"
923 #ifndef LINK_PIE_SPEC
926 #define LD_PIE_SPEC "-pie"
929 #define LD_PIE_SPEC ""
931 #define LINK_PIE_SPEC "%{static|shared|r:;" PIE_SPEC ":" LD_PIE_SPEC "} "
934 #ifndef LINK_BUILDID_SPEC
935 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
936 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
940 /* Conditional to test whether the LTO plugin is used or not.
941 FIXME: For slim LTO we will need to enable plugin unconditionally. This
942 still cause problems with PLUGIN_LD != LD and when plugin is built but
943 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
944 plugin only when LTO is enabled. We still honor explicit
945 -fuse-linker-plugin if the linker used understands -plugin. */
947 /* The linker has some plugin support. */
948 #if HAVE_LTO_PLUGIN > 0
949 /* The linker used has full plugin support, use LTO plugin by default. */
950 #if HAVE_LTO_PLUGIN == 2
951 #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
952 #define PLUGIN_COND_CLOSE "}"
954 /* The linker used has limited plugin support, use LTO plugin with explicit
955 -fuse-linker-plugin. */
956 #define PLUGIN_COND "fuse-linker-plugin"
957 #define PLUGIN_COND_CLOSE ""
959 #define LINK_PLUGIN_SPEC \
961 -plugin %(linker_plugin_file) \
962 -plugin-opt=%(lto_wrapper) \
963 -plugin-opt=-fresolution=%u.res \
964 %{flinker-output=*:-plugin-opt=-linker-output-known} \
965 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
968 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
969 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
970 %e-fuse-linker-plugin is not supported in this configuration}"
973 /* Linker command line options for -fsanitize= early on the command line. */
974 #ifndef SANITIZER_EARLY_SPEC
975 #define SANITIZER_EARLY_SPEC "\
976 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
977 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
978 %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}"
981 /* Linker command line options for -fsanitize= late on the command line. */
982 #ifndef SANITIZER_SPEC
983 #define SANITIZER_SPEC "\
984 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
985 %{static:%ecannot specify -static with -fsanitize=address}}\
986 %{%:sanitize(thread):" LIBTSAN_SPEC "\
987 %{static:%ecannot specify -static with -fsanitize=thread}}\
988 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
989 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}"
992 #ifndef POST_LINK_SPEC
993 #define POST_LINK_SPEC ""
996 /* This is the spec to use, once the code for creating the vtable
997 verification runtime library, libvtv.so, has been created. Currently
998 the vtable verification runtime functions are in libstdc++, so we use
999 the spec just below this one. */
1000 #ifndef VTABLE_VERIFICATION_SPEC
1001 #if ENABLE_VTABLE_VERIFY
1002 #define VTABLE_VERIFICATION_SPEC "\
1003 %{!nostdlib:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
1004 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}"
1006 #define VTABLE_VERIFICATION_SPEC "\
1007 %{fvtable-verify=none:} \
1008 %{fvtable-verify=std: \
1009 %e-fvtable-verify=std is not supported in this configuration} \
1010 %{fvtable-verify=preinit: \
1011 %e-fvtable-verify=preinit is not supported in this configuration}"
1016 #define CHKP_SPEC ""
1019 /* -u* was put back because both BSD and SysV seem to support it. */
1020 /* %{static|no-pie|static-pie:} simply prevents an error message:
1021 1. If the target machine doesn't handle -static.
1022 2. If PIE isn't enabled by default.
1023 3. If the target machine doesn't handle -static-pie.
1025 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
1026 scripts which exist in user specified directories, or in standard
1028 /* We pass any -flto flags on to the linker, which is expected
1029 to understand them. In practice, this means it had better be collect2. */
1030 /* %{e*} includes -export-dynamic; see comment in common.opt. */
1031 #ifndef LINK_COMMAND_SPEC
1032 #define LINK_COMMAND_SPEC "\
1033 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
1036 "%{flto|flto=*:%<fcompare-debug*} \
1037 %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
1038 "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
1039 "%X %{o*} %{e*} %{N} %{n} %{r}\
1040 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} \
1041 %{static|no-pie|static-pie:} %{L*} %(mfwrap) %(link_libgcc) " \
1042 VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o " CHKP_SPEC " \
1043 %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
1044 %:include(libgomp.spec)%(link_gomp)}\
1045 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
1046 %(mflib) " STACK_SPLIT_SPEC "\
1047 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
1048 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
1049 %{!nostdlib:%{!nostartfiles:%E}} %{T*} \n%(post_link) }}}}}}"
1052 #ifndef LINK_LIBGCC_SPEC
1053 /* Generate -L options for startfile prefix list. */
1054 # define LINK_LIBGCC_SPEC "%D"
1057 #ifndef STARTFILE_PREFIX_SPEC
1058 # define STARTFILE_PREFIX_SPEC ""
1061 #ifndef SYSROOT_SPEC
1062 # define SYSROOT_SPEC "--sysroot=%R"
1065 #ifndef SYSROOT_SUFFIX_SPEC
1066 # define SYSROOT_SUFFIX_SPEC ""
1069 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
1070 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
1073 static const char *asm_debug
= ASM_DEBUG_SPEC
;
1074 static const char *cpp_spec
= CPP_SPEC
;
1075 static const char *cc1_spec
= CC1_SPEC
;
1076 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
1077 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
1078 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
1079 static const char *asm_spec
= ASM_SPEC
;
1080 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
1081 static const char *link_spec
= LINK_SPEC
;
1082 static const char *lib_spec
= LIB_SPEC
;
1083 static const char *link_gomp_spec
= "";
1084 static const char *libgcc_spec
= LIBGCC_SPEC
;
1085 static const char *endfile_spec
= ENDFILE_SPEC
;
1086 static const char *startfile_spec
= STARTFILE_SPEC
;
1087 static const char *linker_name_spec
= LINKER_NAME
;
1088 static const char *linker_plugin_file_spec
= "";
1089 static const char *lto_wrapper_spec
= "";
1090 static const char *lto_gcc_spec
= "";
1091 static const char *post_link_spec
= POST_LINK_SPEC
;
1092 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
1093 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
1094 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
1095 static const char *sysroot_spec
= SYSROOT_SPEC
;
1096 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
1097 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
1098 static const char *self_spec
= "";
1100 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
1101 There should be no need to override these in target dependent files,
1102 but we need to copy them to the specs file so that newer versions
1103 of the GCC driver can correctly drive older tool chains with the
1104 appropriate -B options. */
1106 /* When cpplib handles traditional preprocessing, get rid of this, and
1107 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
1108 that we default the front end language better. */
1109 static const char *trad_capable_cpp
=
1110 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
1112 /* We don't wrap .d files in %W{} since a missing .d file, and
1113 therefore no dependency entry, confuses make into thinking a .o
1114 file that happens to exist is up-to-date. */
1115 static const char *cpp_unique_options
=
1116 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
1117 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
1118 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
1119 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
1120 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
1121 %{remap} %{g3|ggdb3|gstabs3|gxcoff3|gvms3:-dD}\
1122 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1123 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
1126 /* This contains cpp options which are common with cc1_options and are passed
1127 only when preprocessing only to avoid duplication. We pass the cc1 spec
1128 options to the preprocessor so that it the cc1 spec may manipulate
1129 options used to set target flags. Those special target flags settings may
1130 in turn cause preprocessor symbols to be defined specially. */
1131 static const char *cpp_options
=
1132 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
1133 %{f*} %{g*:%{%:debug-level-gt(0):%{g*}\
1134 %{!fno-working-directory:-fworking-directory}}} %{O*}\
1135 %{undef} %{save-temps*:-fpch-preprocess}";
1137 /* This contains cpp options which are not passed when the preprocessor
1138 output will be used by another program. */
1139 static const char *cpp_debug_options
= "%{d*}";
1141 /* NB: This is shared amongst all front-ends, except for Ada. */
1142 static const char *cc1_options
=
1143 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
1144 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1145 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
1146 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
1147 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
1148 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
1149 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
1150 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
1151 %{-target-help:--target-help}\
1152 %{-version:--version}\
1153 %{-help=*:--help=%*}\
1154 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
1155 %{fsyntax-only:-o %j} %{-param*}\
1156 %{coverage:-fprofile-arcs -ftest-coverage}\
1157 %{fprofile-arcs|fprofile-generate*|coverage:\
1158 %{!fprofile-update=single:\
1159 %{pthread:-fprofile-update=prefer-atomic}}}";
1161 static const char *asm_options
=
1162 "%{-target-help:%:print-asm-header()} "
1164 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
1165 to the assembler equivalents. */
1166 "%{v} %{w:-W} %{I*} "
1168 ASM_COMPRESS_DEBUG_SPEC
1169 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
1171 static const char *invoke_as
=
1172 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1174 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1175 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
1179 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1180 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
1184 /* Some compilers have limits on line lengths, and the multilib_select
1185 and/or multilib_matches strings can be very long, so we build them at
1187 static struct obstack multilib_obstack
;
1188 static const char *multilib_select
;
1189 static const char *multilib_matches
;
1190 static const char *multilib_defaults
;
1191 static const char *multilib_exclusions
;
1192 static const char *multilib_reuse
;
1194 /* Check whether a particular argument is a default argument. */
1196 #ifndef MULTILIB_DEFAULTS
1197 #define MULTILIB_DEFAULTS { "" }
1200 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
1202 #ifndef DRIVER_SELF_SPECS
1203 #define DRIVER_SELF_SPECS ""
1206 /* Linking to libgomp implies pthreads. This is particularly important
1207 for targets that use different start files and suchlike. */
1208 #ifndef GOMP_SELF_SPECS
1209 #define GOMP_SELF_SPECS \
1210 "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \
1214 /* Likewise for -fgnu-tm. */
1215 #ifndef GTM_SELF_SPECS
1216 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1219 static const char *const driver_self_specs
[] = {
1220 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1221 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
1224 #ifndef OPTION_DEFAULT_SPECS
1225 #define OPTION_DEFAULT_SPECS { "", "" }
1234 static const struct default_spec
1235 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1239 struct user_specs
*next
;
1240 const char *filename
;
1243 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1246 /* Record the mapping from file suffixes for compilation specs. */
1250 const char *suffix
; /* Use this compiler for input files
1251 whose names end in this suffix. */
1253 const char *spec
; /* To use this compiler, run this spec. */
1255 const char *cpp_spec
; /* If non-NULL, substitute this spec
1256 for `%C', rather than the usual
1258 int combinable
; /* If nonzero, compiler can deal with
1259 multiple source files at once (IMA). */
1260 int needs_preprocessing
; /* If nonzero, source files need to
1261 be run through a preprocessor. */
1264 /* Pointer to a vector of `struct compiler' that gives the spec for
1265 compiling a file, based on its suffix.
1266 A file that does not end in any of these suffixes will be passed
1267 unchanged to the loader and nothing else will be done to it.
1269 An entry containing two 0s is used to terminate the vector.
1271 If multiple entries match a file, the last matching one is used. */
1273 static struct compiler
*compilers
;
1275 /* Number of entries in `compilers', not counting the null terminator. */
1277 static int n_compilers
;
1279 /* The default list of file name suffixes and their compilation specs. */
1281 static const struct compiler default_compilers
[] =
1283 /* Add lists of suffixes of known languages here. If those languages
1284 were not present when we built the driver, we will hit these copies
1285 and be given a more meaningful error than "file not used since
1286 linking is not done". */
1287 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1288 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1289 {".mii", "#Objective-C++", 0, 0, 0},
1290 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1291 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1292 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1293 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1294 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1295 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1296 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1297 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1298 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1299 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1300 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1301 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1302 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1303 {".r", "#Ratfor", 0, 0, 0},
1304 {".go", "#Go", 0, 1, 0},
1305 /* Next come the entries for C. */
1306 {".c", "@c", 0, 0, 1},
1308 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1309 external preprocessor if -save-temps is given. */
1310 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1313 %eGNU C no longer supports -traditional without -E}\
1314 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1315 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1316 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1318 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1319 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1320 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1322 "%{!E:%e-E or -x required when input is from standard input}\
1323 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1324 {".h", "@c-header", 0, 0, 0},
1326 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1327 external preprocessor if -save-temps is given. */
1328 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1330 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1331 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1332 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1334 %{!fsyntax-only:%{!S:-o %g.s} \
1335 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1336 %W{o*:--output-pch=%*}}%V}}\
1337 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1338 cc1 %(cpp_unique_options) %(cc1_options)\
1339 %{!fsyntax-only:%{!S:-o %g.s} \
1340 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1341 %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
1342 {".i", "@cpp-output", 0, 0, 0},
1344 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1345 {".s", "@assembler", 0, 0, 0},
1347 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1348 {".sx", "@assembler-with-cpp", 0, 0, 0},
1349 {".S", "@assembler-with-cpp", 0, 0, 0},
1350 {"@assembler-with-cpp",
1351 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1352 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1353 %{E|M|MM:%(cpp_debug_options)}\
1354 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1355 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1357 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1358 %{E|M|MM:%(cpp_debug_options)}\
1359 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1360 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1365 /* Mark end of table. */
1369 /* Number of elements in default_compilers, not counting the terminator. */
1371 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1373 typedef char *char_p
; /* For DEF_VEC_P. */
1375 /* A vector of options to give to the linker.
1376 These options are accumulated by %x,
1377 and substituted into the linker command with %X. */
1378 static vec
<char_p
> linker_options
;
1380 /* A vector of options to give to the assembler.
1381 These options are accumulated by -Wa,
1382 and substituted into the assembler command with %Y. */
1383 static vec
<char_p
> assembler_options
;
1385 /* A vector of options to give to the preprocessor.
1386 These options are accumulated by -Wp,
1387 and substituted into the preprocessor command with %Z. */
1388 static vec
<char_p
> preprocessor_options
;
1391 skip_whitespace (char *p
)
1395 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1396 be considered whitespace. */
1397 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1399 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1413 /* Structures to keep track of prefixes to try when looking for files. */
1417 const char *prefix
; /* String to prepend to the path. */
1418 struct prefix_list
*next
; /* Next in linked list. */
1419 int require_machine_suffix
; /* Don't use without machine_suffix. */
1420 /* 2 means try both machine_suffix and just_machine_suffix. */
1421 int priority
; /* Sort key - priority within list. */
1422 int os_multilib
; /* 1 if OS multilib scheme should be used,
1423 0 for GCC multilib scheme. */
1428 struct prefix_list
*plist
; /* List of prefixes to try */
1429 int max_len
; /* Max length of a prefix in PLIST */
1430 const char *name
; /* Name of this list (used in config stuff) */
1433 /* List of prefixes to try when looking for executables. */
1435 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1437 /* List of prefixes to try when looking for startup (crt0) files. */
1439 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1441 /* List of prefixes to try when looking for include files. */
1443 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1445 /* Suffix to attach to directories searched for commands.
1446 This looks like `MACHINE/VERSION/'. */
1448 static const char *machine_suffix
= 0;
1450 /* Suffix to attach to directories searched for commands.
1451 This is just `MACHINE/'. */
1453 static const char *just_machine_suffix
= 0;
1455 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1457 static const char *gcc_exec_prefix
;
1459 /* Adjusted value of standard_libexec_prefix. */
1461 static const char *gcc_libexec_prefix
;
1463 /* Default prefixes to attach to command names. */
1465 #ifndef STANDARD_STARTFILE_PREFIX_1
1466 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1468 #ifndef STANDARD_STARTFILE_PREFIX_2
1469 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1472 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1473 #undef MD_EXEC_PREFIX
1474 #undef MD_STARTFILE_PREFIX
1475 #undef MD_STARTFILE_PREFIX_1
1478 /* If no prefixes defined, use the null string, which will disable them. */
1479 #ifndef MD_EXEC_PREFIX
1480 #define MD_EXEC_PREFIX ""
1482 #ifndef MD_STARTFILE_PREFIX
1483 #define MD_STARTFILE_PREFIX ""
1485 #ifndef MD_STARTFILE_PREFIX_1
1486 #define MD_STARTFILE_PREFIX_1 ""
1489 /* These directories are locations set at configure-time based on the
1490 --prefix option provided to configure. Their initializers are
1491 defined in Makefile.in. These paths are not *directly* used when
1492 gcc_exec_prefix is set because, in that case, we know where the
1493 compiler has been installed, and use paths relative to that
1494 location instead. */
1495 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1496 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1497 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1498 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1500 /* For native compilers, these are well-known paths containing
1501 components that may be provided by the system. For cross
1502 compilers, these paths are not used. */
1503 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1504 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1505 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1506 static const char *const standard_startfile_prefix_1
1507 = STANDARD_STARTFILE_PREFIX_1
;
1508 static const char *const standard_startfile_prefix_2
1509 = STANDARD_STARTFILE_PREFIX_2
;
1511 /* A relative path to be used in finding the location of tools
1512 relative to the driver. */
1513 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1515 /* A prefix to be used when this is an accelerator compiler. */
1516 static const char *const accel_dir_suffix
= ACCEL_DIR_SUFFIX
;
1518 /* Subdirectory to use for locating libraries. Set by
1519 set_multilib_dir based on the compilation options. */
1521 static const char *multilib_dir
;
1523 /* Subdirectory to use for locating libraries in OS conventions. Set by
1524 set_multilib_dir based on the compilation options. */
1526 static const char *multilib_os_dir
;
1528 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1529 set_multilib_dir based on the compilation options. */
1531 static const char *multiarch_dir
;
1533 /* Structure to keep track of the specs that have been defined so far.
1534 These are accessed using %(specname) in a compiler or link
1539 /* The following 2 fields must be first */
1540 /* to allow EXTRA_SPECS to be initialized */
1541 const char *name
; /* name of the spec. */
1542 const char *ptr
; /* available ptr if no static pointer */
1544 /* The following fields are not initialized */
1545 /* by EXTRA_SPECS */
1546 const char **ptr_spec
; /* pointer to the spec itself. */
1547 struct spec_list
*next
; /* Next spec in linked list. */
1548 int name_len
; /* length of the name */
1549 bool user_p
; /* whether string come from file spec. */
1550 bool alloc_p
; /* whether string was allocated */
1551 const char *default_ptr
; /* The default value of *ptr_spec. */
1554 #define INIT_STATIC_SPEC(NAME,PTR) \
1555 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false, \
1558 /* List of statically defined specs. */
1559 static struct spec_list static_specs
[] =
1561 INIT_STATIC_SPEC ("asm", &asm_spec
),
1562 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1563 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1564 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1565 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1566 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1567 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1568 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1569 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1570 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1571 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1572 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1573 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1574 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1575 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1576 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1577 INIT_STATIC_SPEC ("link", &link_spec
),
1578 INIT_STATIC_SPEC ("lib", &lib_spec
),
1579 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1580 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1581 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1582 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1583 INIT_STATIC_SPEC ("version", &compiler_version
),
1584 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1585 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1586 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1587 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1588 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1589 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1590 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1591 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1592 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1593 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1594 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1595 INIT_STATIC_SPEC ("post_link", &post_link_spec
),
1596 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1597 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1598 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1599 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1600 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1601 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1602 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1603 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1604 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1607 #ifdef EXTRA_SPECS /* additional specs needed */
1608 /* Structure to keep track of just the first two args of a spec_list.
1609 That is all that the EXTRA_SPECS macro gives us. */
1612 const char *const name
;
1613 const char *const ptr
;
1616 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1617 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1620 /* List of dynamically allocates specs that have been defined so far. */
1622 static struct spec_list
*specs
= (struct spec_list
*) 0;
1624 /* List of static spec functions. */
1626 static const struct spec_function static_spec_functions
[] =
1628 { "getenv", getenv_spec_function
},
1629 { "if-exists", if_exists_spec_function
},
1630 { "if-exists-else", if_exists_else_spec_function
},
1631 { "sanitize", sanitize_spec_function
},
1632 { "replace-outfile", replace_outfile_spec_function
},
1633 { "remove-outfile", remove_outfile_spec_function
},
1634 { "version-compare", version_compare_spec_function
},
1635 { "include", include_spec_function
},
1636 { "find-file", find_file_spec_function
},
1637 { "find-plugindir", find_plugindir_spec_function
},
1638 { "print-asm-header", print_asm_header_spec_function
},
1639 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1640 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1641 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1642 { "pass-through-libs", pass_through_libs_spec_func
},
1643 { "replace-extension", replace_extension_spec_func
},
1644 { "gt", greater_than_spec_func
},
1645 { "debug-level-gt", debug_level_greater_than_spec_func
},
1646 #ifdef EXTRA_SPEC_FUNCTIONS
1647 EXTRA_SPEC_FUNCTIONS
1652 static int processing_spec_function
;
1654 /* Add appropriate libgcc specs to OBSTACK, taking into account
1655 various permutations of -shared-libgcc, -shared, and such. */
1657 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1659 #ifndef USE_LD_AS_NEEDED
1660 #define USE_LD_AS_NEEDED 0
1664 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1665 const char *static_name
, const char *eh_name
)
1669 #if USE_LD_AS_NEEDED
1670 buf
= concat ("%{static|static-libgcc|static-pie:", static_name
, " ", eh_name
, "}"
1671 "%{!static:%{!static-libgcc:%{!static-pie:"
1672 "%{!shared-libgcc:",
1673 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1674 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1677 shared_name
, "%{!shared: ", static_name
, "}"
1680 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1681 "%{!static:%{!static-libgcc:"
1683 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1684 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1688 "%{shared-libgcc:", shared_name
, "}"
1689 "%{!shared-libgcc:", static_name
, "}"
1692 "%{shared:", shared_name
, "}"
1697 obstack_grow (obstack
, buf
, strlen (buf
));
1700 #endif /* ENABLE_SHARED_LIBGCC */
1702 /* Initialize the specs lookup routines. */
1707 struct spec_list
*next
= (struct spec_list
*) 0;
1708 struct spec_list
*sl
= (struct spec_list
*) 0;
1712 return; /* Already initialized. */
1715 fnotice (stderr
, "Using built-in specs.\n");
1718 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1720 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1722 sl
= &extra_specs
[i
];
1723 sl
->name
= extra_specs_1
[i
].name
;
1724 sl
->ptr
= extra_specs_1
[i
].ptr
;
1726 sl
->name_len
= strlen (sl
->name
);
1727 sl
->ptr_spec
= &sl
->ptr
;
1728 gcc_assert (sl
->ptr_spec
!= NULL
);
1729 sl
->default_ptr
= sl
->ptr
;
1734 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1736 sl
= &static_specs
[i
];
1741 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1742 /* ??? If neither -shared-libgcc nor --static-libgcc was
1743 seen, then we should be making an educated guess. Some proposed
1744 heuristics for ELF include:
1746 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1747 program will be doing dynamic loading, which will likely
1748 need the shared libgcc.
1750 (2) If "-ldl", then it's also a fair bet that we're doing
1753 (3) For each ET_DYN we're linking against (either through -lfoo
1754 or /some/path/foo.so), check to see whether it or one of
1755 its dependencies depends on a shared libgcc.
1759 If the runtime is fixed to look for program headers instead
1760 of calling __register_frame_info at all, for each object,
1761 use the shared libgcc if any EH symbol referenced.
1763 If crtstuff is fixed to not invoke __register_frame_info
1764 automatically, for each object, use the shared libgcc if
1765 any non-empty unwind section found.
1767 Doing any of this probably requires invoking an external program to
1768 do the actual object file scanning. */
1770 const char *p
= libgcc_spec
;
1773 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1774 when given the proper command line arguments. */
1777 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1779 init_gcc_specs (&obstack
,
1781 #ifdef USE_LIBUNWIND_EXCEPTIONS
1787 #ifdef USE_LIBUNWIND_EXCEPTIONS
1788 # ifdef HAVE_LD_STATIC_DYNAMIC
1789 " %{!static:%{!static-pie:" LD_STATIC_OPTION
"}} -lunwind"
1790 " %{!static:%{!static-pie:" LD_DYNAMIC_OPTION
"}}"
1800 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1802 /* Ug. We don't know shared library extensions. Hope that
1803 systems that use this form don't do shared libraries. */
1804 init_gcc_specs (&obstack
,
1808 #ifdef USE_LIBUNWIND_EXCEPTIONS
1817 obstack_1grow (&obstack
, *p
);
1818 in_sep
= (*p
== ' ');
1823 obstack_1grow (&obstack
, '\0');
1824 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1827 #ifdef USE_AS_TRADITIONAL_FORMAT
1828 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1830 static const char tf
[] = "--traditional-format ";
1831 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1832 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1833 asm_spec
= XOBFINISH (&obstack
, const char *);
1837 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1838 defined LINKER_HASH_STYLE
1839 # ifdef LINK_BUILDID_SPEC
1840 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1841 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1843 # ifdef LINK_EH_SPEC
1844 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1845 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1847 # ifdef LINKER_HASH_STYLE
1848 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1851 static const char hash_style
[] = "--hash-style=";
1852 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1853 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1854 obstack_1grow (&obstack
, ' ');
1857 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1858 link_spec
= XOBFINISH (&obstack
, const char *);
1864 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1865 removed; If the spec starts with a + then SPEC is added to the end of the
1869 set_spec (const char *name
, const char *spec
, bool user_p
)
1871 struct spec_list
*sl
;
1872 const char *old_spec
;
1873 int name_len
= strlen (name
);
1876 /* If this is the first call, initialize the statically allocated specs. */
1879 struct spec_list
*next
= (struct spec_list
*) 0;
1880 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1882 sl
= &static_specs
[i
];
1889 /* See if the spec already exists. */
1890 for (sl
= specs
; sl
; sl
= sl
->next
)
1891 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1896 /* Not found - make it. */
1897 sl
= XNEW (struct spec_list
);
1898 sl
->name
= xstrdup (name
);
1899 sl
->name_len
= name_len
;
1900 sl
->ptr_spec
= &sl
->ptr
;
1902 *(sl
->ptr_spec
) = "";
1904 sl
->default_ptr
= NULL
;
1908 old_spec
= *(sl
->ptr_spec
);
1909 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1910 ? concat (old_spec
, spec
+ 1, NULL
)
1915 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1918 /* Free the old spec. */
1919 if (old_spec
&& sl
->alloc_p
)
1920 free (CONST_CAST (char *, old_spec
));
1922 sl
->user_p
= user_p
;
1926 /* Accumulate a command (program name and args), and run it. */
1928 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1930 /* Vector of pointers to arguments in the current line of specifications. */
1932 static vec
<const_char_p
> argbuf
;
1934 /* Were the options -c, -S or -E passed. */
1935 static int have_c
= 0;
1937 /* Was the option -o passed. */
1938 static int have_o
= 0;
1940 /* Was the option -E passed. */
1941 static int have_E
= 0;
1943 /* Pointer to output file name passed in with -o. */
1944 static const char *output_file
= 0;
1946 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1947 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1950 static struct temp_name
{
1951 const char *suffix
; /* suffix associated with the code. */
1952 int length
; /* strlen (suffix). */
1953 int unique
; /* Indicates whether %g or %u/%U was used. */
1954 const char *filename
; /* associated filename. */
1955 int filename_length
; /* strlen (filename). */
1956 struct temp_name
*next
;
1959 /* Number of commands executed so far. */
1961 static int execution_count
;
1963 /* Number of commands that exited with a signal. */
1965 static int signal_count
;
1967 /* Allocate the argument vector. */
1975 /* Clear out the vector of arguments (after a command is executed). */
1980 argbuf
.truncate (0);
1983 /* Add one argument to the vector at the end.
1984 This is done when a space is seen or at the end of the line.
1985 If DELETE_ALWAYS is nonzero, the arg is a filename
1986 and the file should be deleted eventually.
1987 If DELETE_FAILURE is nonzero, the arg is a filename
1988 and the file should be deleted if this compilation fails. */
1991 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1993 argbuf
.safe_push (arg
);
1995 if (delete_always
|| delete_failure
)
1998 /* If the temporary file we should delete is specified as
1999 part of a joined argument extract the filename. */
2001 && (p
= strrchr (arg
, '=')))
2003 record_temp_file (arg
, delete_always
, delete_failure
);
2007 /* Load specs from a file name named FILENAME, replacing occurrences of
2008 various different types of line-endings, \r\n, \n\r and just \r, with
2012 load_specs (const char *filename
)
2016 struct stat statbuf
;
2023 fnotice (stderr
, "Reading specs from %s\n", filename
);
2025 /* Open and stat the file. */
2026 desc
= open (filename
, O_RDONLY
, 0);
2028 pfatal_with_name (filename
);
2029 if (stat (filename
, &statbuf
) < 0)
2030 pfatal_with_name (filename
);
2032 /* Read contents of file into BUFFER. */
2033 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2034 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2036 pfatal_with_name (filename
);
2037 buffer
[readlen
] = 0;
2040 specs
= XNEWVEC (char, readlen
+ 1);
2042 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2048 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2050 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2064 /* Read compilation specs from a file named FILENAME,
2065 replacing the default ones.
2067 A suffix which starts with `*' is a definition for
2068 one of the machine-specific sub-specs. The "suffix" should be
2069 *asm, *cc1, *cpp, *link, *startfile, etc.
2070 The corresponding spec is stored in asm_spec, etc.,
2071 rather than in the `compilers' vector.
2073 Anything invalid in the file is a fatal error. */
2076 read_specs (const char *filename
, bool main_p
, bool user_p
)
2081 buffer
= load_specs (filename
);
2083 /* Scan BUFFER for specs, putting them in the vector. */
2089 char *in
, *out
, *p1
, *p2
, *p3
;
2091 /* Advance P in BUFFER to the next nonblank nocomment line. */
2092 p
= skip_whitespace (p
);
2096 /* Is this a special command that starts with '%'? */
2097 /* Don't allow this for the main specs file, since it would
2098 encourage people to overwrite it. */
2099 if (*p
== '%' && !main_p
)
2102 while (*p
&& *p
!= '\n')
2108 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2109 && (p1
[sizeof "%include" - 1] == ' '
2110 || p1
[sizeof "%include" - 1] == '\t'))
2114 p1
+= sizeof ("%include");
2115 while (*p1
== ' ' || *p1
== '\t')
2118 if (*p1
++ != '<' || p
[-2] != '>')
2119 fatal_error (input_location
,
2120 "specs %%include syntax malformed after "
2122 (long) (p1
- buffer
+ 1));
2125 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2126 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
2129 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2130 && (p1
[sizeof "%include_noerr" - 1] == ' '
2131 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2135 p1
+= sizeof "%include_noerr";
2136 while (*p1
== ' ' || *p1
== '\t')
2139 if (*p1
++ != '<' || p
[-2] != '>')
2140 fatal_error (input_location
,
2141 "specs %%include syntax malformed after "
2143 (long) (p1
- buffer
+ 1));
2146 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2148 read_specs (new_filename
, false, user_p
);
2149 else if (verbose_flag
)
2150 fnotice (stderr
, "could not find specs file %s\n", p1
);
2153 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2154 && (p1
[sizeof "%rename" - 1] == ' '
2155 || p1
[sizeof "%rename" - 1] == '\t'))
2158 struct spec_list
*sl
;
2159 struct spec_list
*newsl
;
2161 /* Get original name. */
2162 p1
+= sizeof "%rename";
2163 while (*p1
== ' ' || *p1
== '\t')
2166 if (! ISALPHA ((unsigned char) *p1
))
2167 fatal_error (input_location
,
2168 "specs %%rename syntax malformed after "
2170 (long) (p1
- buffer
));
2173 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2176 if (*p2
!= ' ' && *p2
!= '\t')
2177 fatal_error (input_location
,
2178 "specs %%rename syntax malformed after "
2180 (long) (p2
- buffer
));
2184 while (*p2
== ' ' || *p2
== '\t')
2187 if (! ISALPHA ((unsigned char) *p2
))
2188 fatal_error (input_location
,
2189 "specs %%rename syntax malformed after "
2191 (long) (p2
- buffer
));
2193 /* Get new spec name. */
2195 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2199 fatal_error (input_location
,
2200 "specs %%rename syntax malformed after "
2202 (long) (p3
- buffer
));
2205 for (sl
= specs
; sl
; sl
= sl
->next
)
2206 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2210 fatal_error (input_location
,
2211 "specs %s spec was not found to be renamed", p1
);
2213 if (strcmp (p1
, p2
) == 0)
2216 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2217 if (strcmp (newsl
->name
, p2
) == 0)
2218 fatal_error (input_location
,
2219 "%s: attempt to rename spec %qs to "
2220 "already defined spec %qs",
2225 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
2227 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2231 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2233 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2235 *(sl
->ptr_spec
) = "";
2240 fatal_error (input_location
,
2241 "specs unknown %% command after %ld characters",
2242 (long) (p1
- buffer
));
2245 /* Find the colon that should end the suffix. */
2247 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2250 /* The colon shouldn't be missing. */
2252 fatal_error (input_location
,
2253 "specs file malformed after %ld characters",
2254 (long) (p1
- buffer
));
2256 /* Skip back over trailing whitespace. */
2258 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2261 /* Copy the suffix to a string. */
2262 suffix
= save_string (p
, p2
- p
);
2263 /* Find the next line. */
2264 p
= skip_whitespace (p1
+ 1);
2266 fatal_error (input_location
,
2267 "specs file malformed after %ld characters",
2268 (long) (p
- buffer
));
2271 /* Find next blank line or end of string. */
2272 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2275 /* Specs end at the blank line and do not include the newline. */
2276 spec
= save_string (p
, p1
- p
);
2279 /* Delete backslash-newline sequences from the spec. */
2284 if (in
[0] == '\\' && in
[1] == '\n')
2286 else if (in
[0] == '#')
2287 while (*in
&& *in
!= '\n')
2295 if (suffix
[0] == '*')
2297 if (! strcmp (suffix
, "*link_command"))
2298 link_command_spec
= spec
;
2301 set_spec (suffix
+ 1, spec
, user_p
);
2307 /* Add this pair to the vector. */
2309 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2311 compilers
[n_compilers
].suffix
= suffix
;
2312 compilers
[n_compilers
].spec
= spec
;
2314 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2318 link_command_spec
= spec
;
2321 if (link_command_spec
== 0)
2322 fatal_error (input_location
, "spec file has no spec for linking");
2324 XDELETEVEC (buffer
);
2327 /* Record the names of temporary files we tell compilers to write,
2328 and delete them at the end of the run. */
2330 /* This is the common prefix we use to make temp file names.
2331 It is chosen once for each run of this program.
2332 It is substituted into a spec by %g or %j.
2333 Thus, all temp file names contain this prefix.
2334 In practice, all temp file names start with this prefix.
2336 This prefix comes from the envvar TMPDIR if it is defined;
2337 otherwise, from the P_tmpdir macro if that is defined;
2338 otherwise, in /usr/tmp or /tmp;
2339 or finally the current directory if all else fails. */
2341 static const char *temp_filename
;
2343 /* Length of the prefix. */
2345 static int temp_filename_length
;
2347 /* Define the list of temporary files to delete. */
2352 struct temp_file
*next
;
2355 /* Queue of files to delete on success or failure of compilation. */
2356 static struct temp_file
*always_delete_queue
;
2357 /* Queue of files to delete on failure of compilation. */
2358 static struct temp_file
*failure_delete_queue
;
2360 /* Record FILENAME as a file to be deleted automatically.
2361 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2362 otherwise delete it in any case.
2363 FAIL_DELETE nonzero means delete it if a compilation step fails;
2364 otherwise delete it in any case. */
2367 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2369 char *const name
= xstrdup (filename
);
2373 struct temp_file
*temp
;
2374 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2375 if (! filename_cmp (name
, temp
->name
))
2381 temp
= XNEW (struct temp_file
);
2382 temp
->next
= always_delete_queue
;
2384 always_delete_queue
= temp
;
2391 struct temp_file
*temp
;
2392 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2393 if (! filename_cmp (name
, temp
->name
))
2399 temp
= XNEW (struct temp_file
);
2400 temp
->next
= failure_delete_queue
;
2402 failure_delete_queue
= temp
;
2408 /* Delete all the temporary files whose names we previously recorded. */
2410 #ifndef DELETE_IF_ORDINARY
2411 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2414 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2415 if (unlink (NAME) < 0) \
2417 perror_with_name (NAME); \
2422 delete_if_ordinary (const char *name
)
2428 printf ("Delete %s? (y or n) ", name
);
2432 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2435 if (i
== 'y' || i
== 'Y')
2437 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2441 delete_temp_files (void)
2443 struct temp_file
*temp
;
2445 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2446 delete_if_ordinary (temp
->name
);
2447 always_delete_queue
= 0;
2450 /* Delete all the files to be deleted on error. */
2453 delete_failure_queue (void)
2455 struct temp_file
*temp
;
2457 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2458 delete_if_ordinary (temp
->name
);
2462 clear_failure_queue (void)
2464 failure_delete_queue
= 0;
2467 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2469 If DO_MULTI is true iterate over the paths twice, first with multilib
2470 suffix then without, otherwise iterate over the paths once without
2471 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2472 to avoid visiting the same path twice, but we could do better. For
2473 instance, /usr/lib/../lib is considered different from /usr/lib.
2474 At least EXTRA_SPACE chars past the end of the path passed to
2475 CALLBACK are available for use by the callback.
2476 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2478 Returns the value returned by CALLBACK. */
2481 for_each_path (const struct path_prefix
*paths
,
2484 void *(*callback
) (char *, void *),
2485 void *callback_info
)
2487 struct prefix_list
*pl
;
2488 const char *multi_dir
= NULL
;
2489 const char *multi_os_dir
= NULL
;
2490 const char *multiarch_suffix
= NULL
;
2491 const char *multi_suffix
;
2492 const char *just_multi_suffix
;
2495 bool skip_multi_dir
= false;
2496 bool skip_multi_os_dir
= false;
2498 multi_suffix
= machine_suffix
;
2499 just_multi_suffix
= just_machine_suffix
;
2500 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2502 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2503 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2504 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2506 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2507 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2509 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2513 size_t multi_dir_len
= 0;
2514 size_t multi_os_dir_len
= 0;
2515 size_t multiarch_len
= 0;
2517 size_t just_suffix_len
;
2521 multi_dir_len
= strlen (multi_dir
);
2523 multi_os_dir_len
= strlen (multi_os_dir
);
2524 if (multiarch_suffix
)
2525 multiarch_len
= strlen (multiarch_suffix
);
2526 suffix_len
= strlen (multi_suffix
);
2527 just_suffix_len
= strlen (just_multi_suffix
);
2531 len
= paths
->max_len
+ extra_space
+ 1;
2532 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2533 path
= XNEWVEC (char, len
);
2536 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2538 len
= strlen (pl
->prefix
);
2539 memcpy (path
, pl
->prefix
, len
);
2541 /* Look first in MACHINE/VERSION subdirectory. */
2542 if (!skip_multi_dir
)
2544 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2545 ret
= callback (path
, callback_info
);
2550 /* Some paths are tried with just the machine (ie. target)
2551 subdir. This is used for finding as, ld, etc. */
2553 && pl
->require_machine_suffix
== 2)
2555 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2556 ret
= callback (path
, callback_info
);
2561 /* Now try the multiarch path. */
2563 && !pl
->require_machine_suffix
&& multiarch_dir
)
2565 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2566 ret
= callback (path
, callback_info
);
2571 /* Now try the base path. */
2572 if (!pl
->require_machine_suffix
2573 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2575 const char *this_multi
;
2576 size_t this_multi_len
;
2578 if (pl
->os_multilib
)
2580 this_multi
= multi_os_dir
;
2581 this_multi_len
= multi_os_dir_len
;
2585 this_multi
= multi_dir
;
2586 this_multi_len
= multi_dir_len
;
2590 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2594 ret
= callback (path
, callback_info
);
2602 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2605 /* Run through the paths again, this time without multilibs.
2606 Don't repeat any we have already seen. */
2609 free (CONST_CAST (char *, multi_dir
));
2611 free (CONST_CAST (char *, multi_suffix
));
2612 multi_suffix
= machine_suffix
;
2613 free (CONST_CAST (char *, just_multi_suffix
));
2614 just_multi_suffix
= just_machine_suffix
;
2617 skip_multi_dir
= true;
2620 free (CONST_CAST (char *, multi_os_dir
));
2621 multi_os_dir
= NULL
;
2624 skip_multi_os_dir
= true;
2629 free (CONST_CAST (char *, multi_dir
));
2630 free (CONST_CAST (char *, multi_suffix
));
2631 free (CONST_CAST (char *, just_multi_suffix
));
2634 free (CONST_CAST (char *, multi_os_dir
));
2640 /* Callback for build_search_list. Adds path to obstack being built. */
2642 struct add_to_obstack_info
{
2649 add_to_obstack (char *path
, void *data
)
2651 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2653 if (info
->check_dir
&& !is_directory (path
, false))
2656 if (!info
->first_time
)
2657 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2659 obstack_grow (info
->ob
, path
, strlen (path
));
2661 info
->first_time
= false;
2665 /* Add or change the value of an environment variable, outputting the
2666 change to standard error if in verbose mode. */
2668 xputenv (const char *string
)
2673 /* Build a list of search directories from PATHS.
2674 PREFIX is a string to prepend to the list.
2675 If CHECK_DIR_P is true we ensure the directory exists.
2676 If DO_MULTI is true, multilib paths are output first, then
2678 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2679 It is also used by the --print-search-dirs flag. */
2682 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2683 bool check_dir
, bool do_multi
)
2685 struct add_to_obstack_info info
;
2687 info
.ob
= &collect_obstack
;
2688 info
.check_dir
= check_dir
;
2689 info
.first_time
= true;
2691 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2692 obstack_1grow (&collect_obstack
, '=');
2694 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2696 obstack_1grow (&collect_obstack
, '\0');
2697 return XOBFINISH (&collect_obstack
, char *);
2700 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2704 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2707 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2710 /* Check whether NAME can be accessed in MODE. This is like access,
2711 except that it never considers directories to be executable. */
2714 access_check (const char *name
, int mode
)
2720 if (stat (name
, &st
) < 0
2721 || S_ISDIR (st
.st_mode
))
2725 return access (name
, mode
);
2728 /* Callback for find_a_file. Appends the file name to the directory
2729 path. If the resulting file exists in the right mode, return the
2730 full pathname to the file. */
2732 struct file_at_path_info
{
2741 file_at_path (char *path
, void *data
)
2743 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2744 size_t len
= strlen (path
);
2746 memcpy (path
+ len
, info
->name
, info
->name_len
);
2747 len
+= info
->name_len
;
2749 /* Some systems have a suffix for executable files.
2750 So try appending that first. */
2751 if (info
->suffix_len
)
2753 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2754 if (access_check (path
, info
->mode
) == 0)
2759 if (access_check (path
, info
->mode
) == 0)
2765 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2766 access to check permissions. If DO_MULTI is true, search multilib
2767 paths then non-multilib paths, otherwise do not search multilib paths.
2768 Return 0 if not found, otherwise return its name, allocated with malloc. */
2771 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2774 struct file_at_path_info info
;
2776 #ifdef DEFAULT_ASSEMBLER
2777 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2778 return xstrdup (DEFAULT_ASSEMBLER
);
2781 #ifdef DEFAULT_LINKER
2782 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2783 return xstrdup (DEFAULT_LINKER
);
2786 /* Determine the filename to execute (special case for absolute paths). */
2788 if (IS_ABSOLUTE_PATH (name
))
2790 if (access (name
, mode
) == 0)
2791 return xstrdup (name
);
2797 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2798 info
.name_len
= strlen (info
.name
);
2799 info
.suffix_len
= strlen (info
.suffix
);
2802 return (char*) for_each_path (pprefix
, do_multi
,
2803 info
.name_len
+ info
.suffix_len
,
2804 file_at_path
, &info
);
2807 /* Ranking of prefixes in the sort list. -B prefixes are put before
2810 enum path_prefix_priority
2812 PREFIX_PRIORITY_B_OPT
,
2813 PREFIX_PRIORITY_LAST
2816 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2817 order according to PRIORITY. Within each PRIORITY, new entries are
2820 If WARN is nonzero, we will warn if no file is found
2821 through this prefix. WARN should point to an int
2822 which will be set to 1 if this entry is used.
2824 COMPONENT is the value to be passed to update_path.
2826 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2827 the complete value of machine_suffix.
2828 2 means try both machine_suffix and just_machine_suffix. */
2831 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2832 const char *component
, /* enum prefix_priority */ int priority
,
2833 int require_machine_suffix
, int os_multilib
)
2835 struct prefix_list
*pl
, **prev
;
2838 for (prev
= &pprefix
->plist
;
2839 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2840 prev
= &(*prev
)->next
)
2843 /* Keep track of the longest prefix. */
2845 prefix
= update_path (prefix
, component
);
2846 len
= strlen (prefix
);
2847 if (len
> pprefix
->max_len
)
2848 pprefix
->max_len
= len
;
2850 pl
= XNEW (struct prefix_list
);
2851 pl
->prefix
= prefix
;
2852 pl
->require_machine_suffix
= require_machine_suffix
;
2853 pl
->priority
= priority
;
2854 pl
->os_multilib
= os_multilib
;
2856 /* Insert after PREV. */
2861 /* Same as add_prefix, but prepending target_system_root to prefix. */
2862 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2864 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2865 const char *component
,
2866 /* enum prefix_priority */ int priority
,
2867 int require_machine_suffix
, int os_multilib
)
2869 if (!IS_ABSOLUTE_PATH (prefix
))
2870 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
2872 if (target_system_root
)
2874 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2875 size_t sysroot_len
= strlen (target_system_root
);
2878 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2879 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2881 if (target_sysroot_suffix
)
2882 prefix
= concat (sysroot_no_trailing_dir_separator
,
2883 target_sysroot_suffix
, prefix
, NULL
);
2885 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2887 free (sysroot_no_trailing_dir_separator
);
2889 /* We have to override this because GCC's notion of sysroot
2890 moves along with GCC. */
2894 add_prefix (pprefix
, prefix
, component
, priority
,
2895 require_machine_suffix
, os_multilib
);
2898 /* Execute the command specified by the arguments on the current line of spec.
2899 When using pipes, this includes several piped-together commands
2900 with `|' between them.
2902 Return 0 if successful, -1 if failed. */
2908 int n_commands
; /* # of command. */
2910 struct pex_obj
*pex
;
2913 const char *prog
; /* program name. */
2914 const char **argv
; /* vector of args. */
2918 struct command
*commands
; /* each command buffer with above info. */
2920 gcc_assert (!processing_spec_function
);
2924 string
= find_a_file (&exec_prefixes
,
2925 argbuf
[0], X_OK
, false);
2928 insert_wrapper (wrapper_string
);
2931 /* Count # of piped commands. */
2932 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2933 if (strcmp (arg
, "|") == 0)
2936 /* Get storage for each command. */
2937 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2939 /* Split argbuf into its separate piped processes,
2940 and record info about each one.
2941 Also search for the programs that are to be run. */
2943 argbuf
.safe_push (0);
2945 commands
[0].prog
= argbuf
[0]; /* first command. */
2946 commands
[0].argv
= argbuf
.address ();
2948 if (!wrapper_string
)
2950 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2951 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2954 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2955 if (arg
&& strcmp (arg
, "|") == 0)
2956 { /* each command. */
2957 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2958 fatal_error (input_location
, "-pipe not supported");
2960 argbuf
[i
] = 0; /* Termination of
2962 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2963 commands
[n_commands
].argv
2964 = &(argbuf
.address ())[i
+ 1];
2965 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2968 commands
[n_commands
].argv
[0] = string
;
2972 /* If -v, print what we are about to do, and maybe query. */
2976 /* For help listings, put a blank line between sub-processes. */
2977 if (print_help_list
)
2978 fputc ('\n', stderr
);
2980 /* Print each piped command as a separate line. */
2981 for (i
= 0; i
< n_commands
; i
++)
2983 const char *const *j
;
2985 if (verbose_only_flag
)
2987 for (j
= commands
[i
].argv
; *j
; j
++)
2990 for (p
= *j
; *p
; ++p
)
2991 if (!ISALNUM ((unsigned char) *p
)
2992 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2996 fprintf (stderr
, " \"");
2997 for (p
= *j
; *p
; ++p
)
2999 if (*p
== '"' || *p
== '\\' || *p
== '$')
3000 fputc ('\\', stderr
);
3003 fputc ('"', stderr
);
3005 /* If it's empty, print "". */
3007 fprintf (stderr
, " \"\"");
3009 fprintf (stderr
, " %s", *j
);
3013 for (j
= commands
[i
].argv
; *j
; j
++)
3014 /* If it's empty, print "". */
3016 fprintf (stderr
, " \"\"");
3018 fprintf (stderr
, " %s", *j
);
3020 /* Print a pipe symbol after all but the last command. */
3021 if (i
+ 1 != n_commands
)
3022 fprintf (stderr
, " |");
3023 fprintf (stderr
, "\n");
3026 if (verbose_only_flag
!= 0)
3028 /* verbose_only_flag should act as if the spec was
3029 executed, so increment execution_count before
3030 returning. This prevents spurious warnings about
3031 unused linker input files, etc. */
3036 fnotice (stderr
, "\nGo ahead? (y or n) ");
3040 while (getchar () != '\n')
3043 if (i
!= 'y' && i
!= 'Y')
3048 #ifdef ENABLE_VALGRIND_CHECKING
3049 /* Run the each command through valgrind. To simplify prepending the
3050 path to valgrind and the option "-q" (for quiet operation unless
3051 something triggers), we allocate a separate argv array. */
3053 for (i
= 0; i
< n_commands
; i
++)
3059 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3062 argv
= XALLOCAVEC (const char *, argc
+ 3);
3064 argv
[0] = VALGRIND_PATH
;
3066 for (j
= 2; j
< argc
+ 2; j
++)
3067 argv
[j
] = commands
[i
].argv
[j
- 2];
3070 commands
[i
].argv
= argv
;
3071 commands
[i
].prog
= argv
[0];
3075 /* Run each piped subprocess. */
3077 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3078 ? PEX_RECORD_TIMES
: 0),
3079 progname
, temp_filename
);
3081 fatal_error (input_location
, "pex_init failed: %m");
3083 for (i
= 0; i
< n_commands
; i
++)
3087 const char *string
= commands
[i
].argv
[0];
3089 errmsg
= pex_run (pex
,
3090 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3091 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3092 string
, CONST_CAST (char **, commands
[i
].argv
),
3097 fatal_error (input_location
, errmsg
);
3101 pfatal_with_name (errmsg
);
3105 if (i
&& string
!= commands
[i
].prog
)
3106 free (CONST_CAST (char *, string
));
3111 /* Wait for all the subprocesses to finish. */
3115 struct pex_time
*times
= NULL
;
3118 statuses
= (int *) alloca (n_commands
* sizeof (int));
3119 if (!pex_get_status (pex
, n_commands
, statuses
))
3120 fatal_error (input_location
, "failed to get exit status: %m");
3122 if (report_times
|| report_times_to_file
)
3124 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3125 if (!pex_get_times (pex
, n_commands
, times
))
3126 fatal_error (input_location
, "failed to get process times: %m");
3131 for (i
= 0; i
< n_commands
; ++i
)
3133 int status
= statuses
[i
];
3135 if (WIFSIGNALED (status
))
3136 switch (WTERMSIG (status
))
3140 /* SIGQUIT and SIGKILL are not available on MinGW. */
3147 /* The user (or environment) did something to the
3148 inferior. Making this an ICE confuses the user into
3149 thinking there's a compiler bug. Much more likely is
3150 the user or OOM killer nuked it. */
3151 fatal_error (input_location
,
3152 "%s signal terminated program %s",
3153 strsignal (WTERMSIG (status
)),
3159 /* SIGPIPE is a special case. It happens in -pipe mode
3160 when the compiler dies before the preprocessor is
3161 done, or the assembler dies before the compiler is
3162 done. There's generally been an error already, and
3163 this is just fallout. So don't generate another
3164 error unless we would otherwise have succeeded. */
3165 if (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
)
3175 /* The inferior failed to catch the signal. */
3176 internal_error_no_backtrace ("%s signal terminated program %s",
3177 strsignal (WTERMSIG (status
)),
3180 else if (WIFEXITED (status
)
3181 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3183 /* For ICEs in cc1, cc1obj, cc1plus see if it is
3184 reproducible or not. */
3187 && WEXITSTATUS (status
) == ICE_EXIT_CODE
3189 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
3190 && ! strncmp (p
+ 1, "cc1", 3))
3191 try_generate_repro (commands
[0].argv
);
3192 if (WEXITSTATUS (status
) > greatest_status
)
3193 greatest_status
= WEXITSTATUS (status
);
3197 if (report_times
|| report_times_to_file
)
3199 struct pex_time
*pt
= ×
[i
];
3202 ut
= ((double) pt
->user_seconds
3203 + (double) pt
->user_microseconds
/ 1.0e6
);
3204 st
= ((double) pt
->system_seconds
3205 + (double) pt
->system_microseconds
/ 1.0e6
);
3210 fnotice (stderr
, "# %s %.2f %.2f\n",
3211 commands
[i
].prog
, ut
, st
);
3213 if (report_times_to_file
)
3216 const char *const *j
;
3218 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3220 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3223 for (p
= *j
; *p
; ++p
)
3224 if (*p
== '"' || *p
== '\\' || *p
== '$'
3230 fprintf (report_times_to_file
, " \"");
3231 for (p
= *j
; *p
; ++p
)
3233 if (*p
== '"' || *p
== '\\' || *p
== '$')
3234 fputc ('\\', report_times_to_file
);
3235 fputc (*p
, report_times_to_file
);
3237 fputc ('"', report_times_to_file
);
3240 fprintf (report_times_to_file
, " %s", *j
);
3243 fputc ('\n', report_times_to_file
);
3249 if (commands
[0].argv
[0] != commands
[0].prog
)
3250 free (CONST_CAST (char *, commands
[0].argv
[0]));
3256 /* Find all the switches given to us
3257 and make a vector describing them.
3258 The elements of the vector are strings, one per switch given.
3259 If a switch uses following arguments, then the `part1' field
3260 is the switch itself and the `args' field
3261 is a null-terminated vector containing the following arguments.
3262 Bits in the `live_cond' field are:
3263 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3264 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3265 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3266 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored.
3267 SWITCH_KEEP_FOR_GCC to indicate that this switch, otherwise ignored,
3268 should be included in COLLECT_GCC_OPTIONS.
3269 in all do_spec calls afterwards. Used for %<S from self specs.
3270 The `known' field describes whether this is an internal switch.
3271 The `validated' field describes whether any spec has looked at this switch;
3272 if it remains false at the end of the run, the switch must be meaningless.
3273 The `ordering' field is used to temporarily mark switches that have to be
3274 kept in a specific order. */
3276 #define SWITCH_LIVE (1 << 0)
3277 #define SWITCH_FALSE (1 << 1)
3278 #define SWITCH_IGNORE (1 << 2)
3279 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
3280 #define SWITCH_KEEP_FOR_GCC (1 << 4)
3286 unsigned int live_cond
;
3292 static struct switchstr
*switches
;
3294 static int n_switches
;
3296 static int n_switches_alloc
;
3298 /* Set to zero if -fcompare-debug is disabled, positive if it's
3299 enabled and we're running the first compilation, negative if it's
3300 enabled and we're running the second compilation. For most of the
3301 time, it's in the range -1..1, but it can be temporarily set to 2
3302 or 3 to indicate that the -fcompare-debug flags didn't come from
3303 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3304 variable, until a synthesized -fcompare-debug flag is added to the
3308 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3309 int compare_debug_second
;
3311 /* Set to the flags that should be passed to the second compilation in
3312 a -fcompare-debug compilation. */
3313 const char *compare_debug_opt
;
3315 static struct switchstr
*switches_debug_check
[2];
3317 static int n_switches_debug_check
[2];
3319 static int n_switches_alloc_debug_check
[2];
3321 static char *debug_check_temp_file
[2];
3323 /* Language is one of three things:
3325 1) The name of a real programming language.
3326 2) NULL, indicating that no one has figured out
3328 3) '*', indicating that the file should be passed
3333 const char *language
;
3334 struct compiler
*incompiler
;
3339 /* Also a vector of input files specified. */
3341 static struct infile
*infiles
;
3345 static int n_infiles_alloc
;
3347 /* True if undefined environment variables encountered during spec processing
3348 are ok to ignore, typically when we're running for --help or --version. */
3350 static bool spec_undefvar_allowed
;
3352 /* True if multiple input files are being compiled to a single
3355 static bool combine_inputs
;
3357 /* This counts the number of libraries added by lang_specific_driver, so that
3358 we can tell if there were any user supplied any files or libraries. */
3360 static int added_libraries
;
3362 /* And a vector of corresponding output files is made up later. */
3364 const char **outfiles
;
3366 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3368 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3369 is true if we should look for an executable suffix. DO_OBJ
3370 is true if we should look for an object suffix. */
3373 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3374 int do_obj ATTRIBUTE_UNUSED
)
3376 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3384 len
= strlen (name
);
3386 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3387 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3388 if (do_obj
&& len
> 2
3389 && name
[len
- 2] == '.'
3390 && name
[len
- 1] == 'o')
3392 obstack_grow (&obstack
, name
, len
- 2);
3393 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3394 name
= XOBFINISH (&obstack
, const char *);
3398 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3399 /* If there is no filetype, make it the executable suffix (which includes
3400 the "."). But don't get confused if we have just "-o". */
3401 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3404 for (i
= len
- 1; i
>= 0; i
--)
3405 if (IS_DIR_SEPARATOR (name
[i
]))
3408 for (i
++; i
< len
; i
++)
3412 obstack_grow (&obstack
, name
, len
);
3413 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3414 strlen (TARGET_EXECUTABLE_SUFFIX
));
3415 name
= XOBFINISH (&obstack
, const char *);
3422 /* Display the command line switches accepted by gcc. */
3426 printf (_("Usage: %s [options] file...\n"), progname
);
3427 fputs (_("Options:\n"), stdout
);
3429 fputs (_(" -pass-exit-codes Exit with highest error code from a phase.\n"), stdout
);
3430 fputs (_(" --help Display this information.\n"), stdout
);
3431 fputs (_(" --target-help Display target specific command line options.\n"), stdout
);
3432 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...].\n"), stdout
);
3433 fputs (_(" Display specific types of command line options.\n"), stdout
);
3435 fputs (_(" (Use '-v --help' to display command line options of sub-processes).\n"), stdout
);
3436 fputs (_(" --version Display compiler version information.\n"), stdout
);
3437 fputs (_(" -dumpspecs Display all of the built in spec strings.\n"), stdout
);
3438 fputs (_(" -dumpversion Display the version of the compiler.\n"), stdout
);
3439 fputs (_(" -dumpmachine Display the compiler's target processor.\n"), stdout
);
3440 fputs (_(" -print-search-dirs Display the directories in the compiler's search path.\n"), stdout
);
3441 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library.\n"), stdout
);
3442 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>.\n"), stdout
);
3443 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>.\n"), stdout
);
3445 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3446 a component in the library path.\n"), stdout
);
3447 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc.\n"), stdout
);
3449 -print-multi-lib Display the mapping between command line options and\n\
3450 multiple library search directories.\n"), stdout
);
3451 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries.\n"), stdout
);
3452 fputs (_(" -print-sysroot Display the target libraries directory.\n"), stdout
);
3453 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers.\n"), stdout
);
3454 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler.\n"), stdout
);
3455 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor.\n"), stdout
);
3456 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker.\n"), stdout
);
3457 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler.\n"), stdout
);
3458 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor.\n"), stdout
);
3459 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker.\n"), stdout
);
3460 fputs (_(" -save-temps Do not delete intermediate files.\n"), stdout
);
3461 fputs (_(" -save-temps=<arg> Do not delete intermediate files.\n"), stdout
);
3463 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3464 prefixes to other gcc components.\n"), stdout
);
3465 fputs (_(" -pipe Use pipes rather than intermediate files.\n"), stdout
);
3466 fputs (_(" -time Time the execution of each subprocess.\n"), stdout
);
3467 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>.\n"), stdout
);
3468 fputs (_(" -std=<standard> Assume that the input sources are for <standard>.\n"), stdout
);
3470 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3471 and libraries.\n"), stdout
);
3472 fputs (_(" -B <directory> Add <directory> to the compiler's search paths.\n"), stdout
);
3473 fputs (_(" -v Display the programs invoked by the compiler.\n"), stdout
);
3474 fputs (_(" -### Like -v but options quoted and commands not executed.\n"), stdout
);
3475 fputs (_(" -E Preprocess only; do not compile, assemble or link.\n"), stdout
);
3476 fputs (_(" -S Compile only; do not assemble or link.\n"), stdout
);
3477 fputs (_(" -c Compile and assemble, but do not link.\n"), stdout
);
3478 fputs (_(" -o <file> Place the output into <file>.\n"), stdout
);
3479 fputs (_(" -pie Create a dynamically linked position independent\n\
3480 executable.\n"), stdout
);
3481 fputs (_(" -shared Create a shared library.\n"), stdout
);
3483 -x <language> Specify the language of the following input files.\n\
3484 Permissible languages include: c c++ assembler none\n\
3485 'none' means revert to the default behavior of\n\
3486 guessing the language based on the file's extension.\n\
3490 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3491 passed on to the various sub-processes invoked by %s. In order to pass\n\
3492 other options on to these processes the -W<letter> options must be used.\n\
3495 /* The rest of the options are displayed by invocations of the various
3500 add_preprocessor_option (const char *option
, int len
)
3502 preprocessor_options
.safe_push (save_string (option
, len
));
3506 add_assembler_option (const char *option
, int len
)
3508 assembler_options
.safe_push (save_string (option
, len
));
3512 add_linker_option (const char *option
, int len
)
3514 linker_options
.safe_push (save_string (option
, len
));
3517 /* Allocate space for an input file in infiles. */
3522 if (n_infiles_alloc
== 0)
3524 n_infiles_alloc
= 16;
3525 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3527 else if (n_infiles_alloc
== n_infiles
)
3529 n_infiles_alloc
*= 2;
3530 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3534 /* Store an input file with the given NAME and LANGUAGE in
3538 add_infile (const char *name
, const char *language
)
3541 infiles
[n_infiles
].name
= name
;
3542 infiles
[n_infiles
++].language
= language
;
3545 /* Allocate space for a switch in switches. */
3550 if (n_switches_alloc
== 0)
3552 n_switches_alloc
= 16;
3553 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3555 else if (n_switches_alloc
== n_switches
)
3557 n_switches_alloc
*= 2;
3558 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3562 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3563 as validated if VALIDATED and KNOWN if it is an internal switch. */
3566 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3567 bool validated
, bool known
)
3570 switches
[n_switches
].part1
= opt
+ 1;
3572 switches
[n_switches
].args
= 0;
3575 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3576 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3577 switches
[n_switches
].args
[n_args
] = NULL
;
3580 switches
[n_switches
].live_cond
= 0;
3581 switches
[n_switches
].validated
= validated
;
3582 switches
[n_switches
].known
= known
;
3583 switches
[n_switches
].ordering
= 0;
3587 /* Set the SOURCE_DATE_EPOCH environment variable to the current time if it is
3591 set_source_date_epoch_envvar ()
3593 /* Array size is 21 = ceil(log_10(2^64)) + 1 to hold string representations
3594 of 64 bit integers. */
3595 char source_date_epoch
[21];
3600 if (tt
< (time_t) 0 || errno
!= 0)
3603 snprintf (source_date_epoch
, 21, "%llu", (unsigned long long) tt
);
3604 /* Using setenv instead of xputenv because we want the variable to remain
3605 after finalizing so that it's still set in the second run when using
3607 setenv ("SOURCE_DATE_EPOCH", source_date_epoch
, 0);
3610 /* Handle an option DECODED that is unknown to the option-processing
3614 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3616 const char *opt
= decoded
->arg
;
3617 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3618 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3620 /* Leave unknown -Wno-* options for the compiler proper, to be
3621 diagnosed only if there are warnings. */
3622 save_switch (decoded
->canonical_option
[0],
3623 decoded
->canonical_option_num_elements
- 1,
3624 &decoded
->canonical_option
[1], false, true);
3627 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3629 /* Give it a chance to define it a spec file. */
3630 save_switch (decoded
->canonical_option
[0],
3631 decoded
->canonical_option_num_elements
- 1,
3632 &decoded
->canonical_option
[1], false, false);
3639 /* Handle an option DECODED that is not marked as CL_DRIVER.
3640 LANG_MASK will always be CL_DRIVER. */
3643 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3644 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3646 /* At this point, non-driver options are accepted (and expected to
3647 be passed down by specs) unless marked to be rejected by the
3648 driver. Options to be rejected by the driver but accepted by the
3649 compilers proper are treated just like completely unknown
3651 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3653 if (option
->cl_reject_driver
)
3654 error ("unrecognized command line option %qs",
3655 decoded
->orig_option_with_args_text
);
3657 save_switch (decoded
->canonical_option
[0],
3658 decoded
->canonical_option_num_elements
- 1,
3659 &decoded
->canonical_option
[1], false, true);
3662 static const char *spec_lang
= 0;
3663 static int last_language_n_infiles
;
3665 /* Parse -foffload option argument. */
3668 handle_foffload_option (const char *arg
)
3670 const char *c
, *cur
, *n
, *next
, *end
;
3673 /* If option argument starts with '-' then no target is specified and we
3674 do not need to parse it. */
3678 end
= strchr (arg
, '=');
3680 end
= strchr (arg
, '\0');
3685 next
= strchr (cur
, ',');
3688 next
= (next
> end
) ? end
: next
;
3690 target
= XNEWVEC (char, next
- cur
+ 1);
3691 memcpy (target
, cur
, next
- cur
);
3692 target
[next
- cur
] = '\0';
3694 /* If 'disable' is passed to the option, stop parsing the option and clean
3695 the list of offload targets. */
3696 if (strcmp (target
, "disable") == 0)
3698 free (offload_targets
);
3699 offload_targets
= xstrdup ("");
3703 /* Check that GCC is configured to support the offload target. */
3704 c
= OFFLOAD_TARGETS
;
3707 n
= strchr (c
, ',');
3709 n
= strchr (c
, '\0');
3711 if (next
- cur
== n
- c
&& strncmp (target
, c
, n
- c
) == 0)
3714 c
= *n
? n
+ 1 : NULL
;
3718 fatal_error (input_location
,
3719 "GCC is not configured to support %s as offload target",
3722 if (!offload_targets
)
3724 offload_targets
= target
;
3729 /* Check that the target hasn't already presented in the list. */
3730 c
= offload_targets
;
3733 n
= strchr (c
, ':');
3735 n
= strchr (c
, '\0');
3737 if (next
- cur
== n
- c
&& strncmp (c
, target
, n
- c
) == 0)
3744 /* If duplicate is not found, append the target to the list. */
3747 size_t offload_targets_len
= strlen (offload_targets
);
3749 = XRESIZEVEC (char, offload_targets
,
3750 offload_targets_len
+ 1 + next
- cur
+ 1);
3751 offload_targets
[offload_targets_len
++] = ':';
3752 memcpy (offload_targets
+ offload_targets_len
, target
, next
- cur
+ 1);
3757 XDELETEVEC (target
);
3761 /* Handle a driver option; arguments and return value as for
3765 driver_handle_option (struct gcc_options
*opts
,
3766 struct gcc_options
*opts_set
,
3767 const struct cl_decoded_option
*decoded
,
3768 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3770 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3771 diagnostic_context
*dc
,
3774 size_t opt_index
= decoded
->opt_index
;
3775 const char *arg
= decoded
->arg
;
3776 const char *compare_debug_replacement_opt
;
3777 int value
= decoded
->value
;
3778 bool validated
= false;
3779 bool do_save
= true;
3781 gcc_assert (opts
== &global_options
);
3782 gcc_assert (opts_set
== &global_options_set
);
3783 gcc_assert (kind
== DK_UNSPECIFIED
);
3784 gcc_assert (loc
== UNKNOWN_LOCATION
);
3785 gcc_assert (dc
== global_dc
);
3791 struct spec_list
*sl
;
3793 for (sl
= specs
; sl
; sl
= sl
->next
)
3794 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3795 if (link_command_spec
)
3796 printf ("*link_command:\n%s\n\n", link_command_spec
);
3800 case OPT_dumpversion
:
3801 printf ("%s\n", spec_version
);
3804 case OPT_dumpmachine
:
3805 printf ("%s\n", spec_machine
);
3808 case OPT_dumpfullversion
:
3809 printf ("%s\n", BASEVER
);
3815 /* CPP driver cannot obtain switch from cc1_options. */
3817 add_preprocessor_option ("--version", strlen ("--version"));
3818 add_assembler_option ("--version", strlen ("--version"));
3819 add_linker_option ("--version", strlen ("--version"));
3823 print_help_list
= 1;
3825 /* CPP driver cannot obtain switch from cc1_options. */
3827 add_preprocessor_option ("--help", 6);
3828 add_assembler_option ("--help", 6);
3829 add_linker_option ("--help", 6);
3833 print_subprocess_help
= 2;
3836 case OPT__target_help
:
3837 print_subprocess_help
= 1;
3839 /* CPP driver cannot obtain switch from cc1_options. */
3841 add_preprocessor_option ("--target-help", 13);
3842 add_assembler_option ("--target-help", 13);
3843 add_linker_option ("--target-help", 13);
3846 case OPT__no_sysroot_suffix
:
3847 case OPT_pass_exit_codes
:
3848 case OPT_print_search_dirs
:
3849 case OPT_print_file_name_
:
3850 case OPT_print_prog_name_
:
3851 case OPT_print_multi_lib
:
3852 case OPT_print_multi_directory
:
3853 case OPT_print_sysroot
:
3854 case OPT_print_multi_os_directory
:
3855 case OPT_print_multiarch
:
3856 case OPT_print_sysroot_headers_suffix
:
3859 /* These options set the variables specified in common.opt
3860 automatically, and do not need to be saved for spec
3865 case OPT_print_libgcc_file_name
:
3866 print_file_name
= "libgcc.a";
3870 case OPT_fuse_ld_bfd
:
3874 case OPT_fuse_ld_gold
:
3878 case OPT_fcompare_debug_second
:
3879 compare_debug_second
= 1;
3882 case OPT_fcompare_debug
:
3886 compare_debug_replacement_opt
= "-fcompare-debug=";
3888 goto compare_debug_with_arg
;
3891 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3893 goto compare_debug_with_arg
;
3900 case OPT_fcompare_debug_
:
3901 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3902 compare_debug_with_arg
:
3903 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3904 gcc_assert (arg
!= NULL
);
3909 if (compare_debug
< 0)
3910 compare_debug_opt
= NULL
;
3912 compare_debug_opt
= arg
;
3913 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
3914 set_source_date_epoch_envvar ();
3917 case OPT_fdiagnostics_color_
:
3918 diagnostic_color_init (dc
, value
);
3924 /* Pass the rest of this option to the assembler. */
3926 /* Split the argument at commas. */
3928 for (j
= 0; arg
[j
]; j
++)
3931 add_assembler_option (arg
+ prev
, j
- prev
);
3935 /* Record the part after the last comma. */
3936 add_assembler_option (arg
+ prev
, j
- prev
);
3944 /* Pass the rest of this option to the preprocessor. */
3946 /* Split the argument at commas. */
3948 for (j
= 0; arg
[j
]; j
++)
3951 add_preprocessor_option (arg
+ prev
, j
- prev
);
3955 /* Record the part after the last comma. */
3956 add_preprocessor_option (arg
+ prev
, j
- prev
);
3964 /* Split the argument at commas. */
3966 for (j
= 0; arg
[j
]; j
++)
3969 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3972 /* Record the part after the last comma. */
3973 add_infile (arg
+ prev
, "*");
3979 add_infile (arg
, "*");
3983 case OPT_Xpreprocessor
:
3984 add_preprocessor_option (arg
, strlen (arg
));
3988 case OPT_Xassembler
:
3989 add_assembler_option (arg
, strlen (arg
));
3994 /* POSIX allows separation of -l and the lib arg; canonicalize
3995 by concatenating -l with its arg */
3996 add_infile (concat ("-l", arg
, NULL
), "*");
4001 /* Similarly, canonicalize -L for linkers that may not accept
4002 separate arguments. */
4003 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
4008 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
4011 case OPT_save_temps
:
4012 save_temps_flag
= SAVE_TEMPS_CWD
;
4016 case OPT_save_temps_
:
4017 if (strcmp (arg
, "cwd") == 0)
4018 save_temps_flag
= SAVE_TEMPS_CWD
;
4019 else if (strcmp (arg
, "obj") == 0
4020 || strcmp (arg
, "object") == 0)
4021 save_temps_flag
= SAVE_TEMPS_OBJ
;
4023 fatal_error (input_location
, "%qs is an unknown -save-temps option",
4024 decoded
->orig_option_with_args_text
);
4027 case OPT_no_canonical_prefixes
:
4028 /* Already handled as a special case, so ignored here. */
4034 /* These options set the variables specified in common.opt
4035 automatically, but do need to be saved for spec
4041 struct user_specs
*user
= XNEW (struct user_specs
);
4043 user
->next
= (struct user_specs
*) 0;
4044 user
->filename
= arg
;
4045 if (user_specs_tail
)
4046 user_specs_tail
->next
= user
;
4048 user_specs_head
= user
;
4049 user_specs_tail
= user
;
4055 target_system_root
= arg
;
4056 target_system_root_changed
= 1;
4061 if (report_times_to_file
)
4062 fclose (report_times_to_file
);
4063 report_times_to_file
= fopen (arg
, "a");
4069 This is similar to -v except that there is no execution
4070 of the commands and the echoed arguments are quoted. It
4071 is intended for use in shell scripts to capture the
4072 driver-generated command line. */
4073 verbose_only_flag
++;
4080 size_t len
= strlen (arg
);
4082 /* Catch the case where the user has forgotten to append a
4083 directory separator to the path. Note, they may be using
4084 -B to add an executable name prefix, eg "i386-elf-", in
4085 order to distinguish between multiple installations of
4086 GCC in the same directory. Hence we must check to see
4087 if appending a directory separator actually makes a
4088 valid directory name. */
4089 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
4090 && is_directory (arg
, false))
4092 char *tmp
= XNEWVEC (char, len
+ 2);
4094 tmp
[len
] = DIR_SEPARATOR
;
4099 add_prefix (&exec_prefixes
, arg
, NULL
,
4100 PREFIX_PRIORITY_B_OPT
, 0, 0);
4101 add_prefix (&startfile_prefixes
, arg
, NULL
,
4102 PREFIX_PRIORITY_B_OPT
, 0, 0);
4103 add_prefix (&include_prefixes
, arg
, NULL
,
4104 PREFIX_PRIORITY_B_OPT
, 0, 0);
4115 if (!strcmp (spec_lang
, "none"))
4116 /* Suppress the warning if -xnone comes after the last input
4117 file, because alternate command interfaces like g++ might
4118 find it useful to place -xnone after each input file. */
4121 last_language_n_infiles
= n_infiles
;
4127 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4128 arg
= convert_filename (arg
, ! have_c
, 0);
4131 /* Save the output name in case -save-temps=obj was used. */
4132 save_temps_prefix
= xstrdup (arg
);
4133 /* On some systems, ld cannot handle "-o" without a space. So
4134 split the option from its argument. */
4135 save_switch ("-o", 1, &arg
, validated
, true);
4138 #ifdef ENABLE_DEFAULT_PIE
4140 /* -pie is turned on by default. */
4143 case OPT_static_libgcc
:
4144 case OPT_shared_libgcc
:
4145 case OPT_static_libgfortran
:
4146 case OPT_static_libstdc__
:
4147 /* These are always valid, since gcc.c itself understands the
4148 first two, gfortranspec.c understands -static-libgfortran and
4149 g++spec.c understands -static-libstdc++ */
4158 handle_foffload_option (arg
);
4162 /* Various driver options need no special processing at this
4163 point, having been handled in a prescan above or being
4164 handled by specs. */
4169 save_switch (decoded
->canonical_option
[0],
4170 decoded
->canonical_option_num_elements
- 1,
4171 &decoded
->canonical_option
[1], validated
, true);
4175 /* Put the driver's standard set of option handlers in *HANDLERS. */
4178 set_option_handlers (struct cl_option_handlers
*handlers
)
4180 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
4181 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
4182 handlers
->num_handlers
= 3;
4183 handlers
->handlers
[0].handler
= driver_handle_option
;
4184 handlers
->handlers
[0].mask
= CL_DRIVER
;
4185 handlers
->handlers
[1].handler
= common_handle_option
;
4186 handlers
->handlers
[1].mask
= CL_COMMON
;
4187 handlers
->handlers
[2].handler
= target_handle_option
;
4188 handlers
->handlers
[2].mask
= CL_TARGET
;
4191 /* Create the vector `switches' and its contents.
4192 Store its length in `n_switches'. */
4195 process_command (unsigned int decoded_options_count
,
4196 struct cl_decoded_option
*decoded_options
)
4200 char *tooldir_prefix
, *tooldir_prefix2
;
4201 char *(*get_relative_prefix
) (const char *, const char *,
4202 const char *) = NULL
;
4203 struct cl_option_handlers handlers
;
4206 gcc_exec_prefix
= env
.get ("GCC_EXEC_PREFIX");
4210 added_libraries
= 0;
4212 /* Figure compiler version from version string. */
4214 compiler_version
= temp1
= xstrdup (version_string
);
4216 for (; *temp1
; ++temp1
)
4225 /* Handle any -no-canonical-prefixes flag early, to assign the function
4226 that builds relative prefixes. This function creates default search
4227 paths that are needed later in normal option handling. */
4229 for (j
= 1; j
< decoded_options_count
; j
++)
4231 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
4233 get_relative_prefix
= make_relative_prefix_ignore_links
;
4237 if (! get_relative_prefix
)
4238 get_relative_prefix
= make_relative_prefix
;
4240 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
4241 see if we can create it from the pathname specified in
4242 decoded_options[0].arg. */
4244 gcc_libexec_prefix
= standard_libexec_prefix
;
4246 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
4247 if (!gcc_exec_prefix
)
4249 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4250 standard_bindir_prefix
,
4251 standard_exec_prefix
);
4252 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4253 standard_bindir_prefix
,
4254 standard_libexec_prefix
);
4255 if (gcc_exec_prefix
)
4256 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
4260 /* make_relative_prefix requires a program name, but
4261 GCC_EXEC_PREFIX is typically a directory name with a trailing
4262 / (which is ignored by make_relative_prefix), so append a
4264 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
4265 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
4266 standard_exec_prefix
,
4267 standard_libexec_prefix
);
4269 /* The path is unrelocated, so fallback to the original setting. */
4270 if (!gcc_libexec_prefix
)
4271 gcc_libexec_prefix
= standard_libexec_prefix
;
4277 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
4278 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
4279 or an automatically created GCC_EXEC_PREFIX from
4280 decoded_options[0].arg. */
4282 /* Do language-specific adjustment/addition of flags. */
4283 lang_specific_driver (&decoded_options
, &decoded_options_count
,
4286 if (gcc_exec_prefix
)
4288 int len
= strlen (gcc_exec_prefix
);
4290 if (len
> (int) sizeof ("/lib/gcc/") - 1
4291 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
4293 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
4294 if (IS_DIR_SEPARATOR (*temp
)
4295 && filename_ncmp (temp
+ 1, "lib", 3) == 0
4296 && IS_DIR_SEPARATOR (temp
[4])
4297 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
4298 len
-= sizeof ("/lib/gcc/") - 1;
4301 set_std_prefix (gcc_exec_prefix
, len
);
4302 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
4303 PREFIX_PRIORITY_LAST
, 0, 0);
4304 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
4305 PREFIX_PRIORITY_LAST
, 0, 0);
4308 /* COMPILER_PATH and LIBRARY_PATH have values
4309 that are lists of directory names with colons. */
4311 temp
= env
.get ("COMPILER_PATH");
4314 const char *startp
, *endp
;
4315 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4317 startp
= endp
= temp
;
4320 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4322 strncpy (nstore
, startp
, endp
- startp
);
4324 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4325 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4327 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4328 nstore
[endp
- startp
+ 1] = 0;
4331 nstore
[endp
- startp
] = 0;
4332 add_prefix (&exec_prefixes
, nstore
, 0,
4333 PREFIX_PRIORITY_LAST
, 0, 0);
4334 add_prefix (&include_prefixes
, nstore
, 0,
4335 PREFIX_PRIORITY_LAST
, 0, 0);
4338 endp
= startp
= endp
+ 1;
4345 temp
= env
.get (LIBRARY_PATH_ENV
);
4346 if (temp
&& *cross_compile
== '0')
4348 const char *startp
, *endp
;
4349 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4351 startp
= endp
= temp
;
4354 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4356 strncpy (nstore
, startp
, endp
- startp
);
4358 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4359 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4361 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4362 nstore
[endp
- startp
+ 1] = 0;
4365 nstore
[endp
- startp
] = 0;
4366 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4367 PREFIX_PRIORITY_LAST
, 0, 1);
4370 endp
= startp
= endp
+ 1;
4377 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4378 temp
= env
.get ("LPATH");
4379 if (temp
&& *cross_compile
== '0')
4381 const char *startp
, *endp
;
4382 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4384 startp
= endp
= temp
;
4387 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4389 strncpy (nstore
, startp
, endp
- startp
);
4391 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4392 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4394 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4395 nstore
[endp
- startp
+ 1] = 0;
4398 nstore
[endp
- startp
] = 0;
4399 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4400 PREFIX_PRIORITY_LAST
, 0, 1);
4403 endp
= startp
= endp
+ 1;
4410 /* Process the options and store input files and switches in their
4413 last_language_n_infiles
= -1;
4415 set_option_handlers (&handlers
);
4417 for (j
= 1; j
< decoded_options_count
; j
++)
4419 switch (decoded_options
[j
].opt_index
)
4431 for (j
= 1; j
< decoded_options_count
; j
++)
4433 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4435 const char *arg
= decoded_options
[j
].arg
;
4436 const char *p
= strrchr (arg
, '@');
4440 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4441 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4443 /* For LTO static archive support we handle input file
4444 specifications that are composed of a filename and
4445 an offset like FNAME@OFFSET. */
4448 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4449 && strlen (p
) == (unsigned int)consumed
)
4451 fname
= (char *)xmalloc (p
- arg
+ 1);
4452 memcpy (fname
, arg
, p
- arg
);
4453 fname
[p
- arg
] = '\0';
4454 /* Only accept non-stdin and existing FNAME parts, otherwise
4455 try with the full name. */
4456 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4459 fname
= xstrdup (arg
);
4463 fname
= xstrdup (arg
);
4465 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4467 if (fname
[0] == '@' && access (fname
+ 1, F_OK
) < 0)
4468 perror_with_name (fname
+ 1);
4470 perror_with_name (fname
);
4473 add_infile (arg
, spec_lang
);
4479 read_cmdline_option (&global_options
, &global_options_set
,
4480 decoded_options
+ j
, UNKNOWN_LOCATION
,
4481 CL_DRIVER
, &handlers
, global_dc
);
4484 /* If the user didn't specify any, default to all configured offload
4486 if (ENABLE_OFFLOADING
&& offload_targets
== NULL
)
4487 handle_foffload_option (OFFLOAD_TARGETS
);
4490 && strcmp (output_file
, "-") != 0
4491 && strcmp (output_file
, HOST_BIT_BUCKET
) != 0)
4494 for (i
= 0; i
< n_infiles
; i
++)
4495 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
4496 && canonical_filename_eq (infiles
[i
].name
, output_file
))
4497 fatal_error (input_location
,
4498 "input file %qs is the same as output file",
4502 if (output_file
!= NULL
&& output_file
[0] == '\0')
4503 fatal_error (input_location
, "output filename may not be empty");
4505 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4506 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4507 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4509 save_temps_length
= strlen (save_temps_prefix
);
4510 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4513 save_temps_length
-= strlen (temp
);
4514 save_temps_prefix
[save_temps_length
] = '\0';
4518 else if (save_temps_prefix
!= NULL
)
4520 free (save_temps_prefix
);
4521 save_temps_prefix
= NULL
;
4524 if (save_temps_flag
&& use_pipes
)
4526 /* -save-temps overrides -pipe, so that temp files are produced */
4527 if (save_temps_flag
)
4528 warning (0, "-pipe ignored because -save-temps specified");
4534 const char *gcd
= env
.get ("GCC_COMPARE_DEBUG");
4536 if (gcd
&& gcd
[0] == '-')
4539 compare_debug_opt
= gcd
;
4541 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4544 compare_debug_opt
= "-gtoggle";
4547 else if (compare_debug
< 0)
4550 gcc_assert (!compare_debug_opt
);
4553 /* Set up the search paths. We add directories that we expect to
4554 contain GNU Toolchain components before directories specified by
4555 the machine description so that we will find GNU components (like
4556 the GNU assembler) before those of the host system. */
4558 /* If we don't know where the toolchain has been installed, use the
4559 configured-in locations. */
4560 if (!gcc_exec_prefix
)
4563 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4564 PREFIX_PRIORITY_LAST
, 1, 0);
4565 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4566 PREFIX_PRIORITY_LAST
, 2, 0);
4567 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4568 PREFIX_PRIORITY_LAST
, 2, 0);
4570 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4571 PREFIX_PRIORITY_LAST
, 1, 0);
4574 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4575 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
4576 dir_separator_str
, NULL
);
4578 /* Look for tools relative to the location from which the driver is
4579 running, or, if that is not available, the configured prefix. */
4581 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4582 spec_host_machine
, dir_separator_str
, spec_version
,
4583 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
4584 free (tooldir_prefix2
);
4586 add_prefix (&exec_prefixes
,
4587 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4588 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4589 add_prefix (&startfile_prefixes
,
4590 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4591 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4592 free (tooldir_prefix
);
4594 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4595 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4596 then consider it to relocate with the rest of the GCC installation
4597 if GCC_EXEC_PREFIX is set.
4598 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4599 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4601 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4602 standard_bindir_prefix
,
4603 target_system_root
);
4604 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4606 target_system_root
= tmp_prefix
;
4607 target_system_root_changed
= 1;
4612 /* More prefixes are enabled in main, after we read the specs file
4613 and determine whether this is cross-compilation or not. */
4615 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4616 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4618 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4619 environment variable. */
4620 if (compare_debug
== 2 || compare_debug
== 3)
4622 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4623 save_switch (opt
, 0, NULL
, false, true);
4627 /* Ensure we only invoke each subprocess once. */
4628 if (print_subprocess_help
|| print_help_list
|| print_version
)
4632 /* Create a dummy input file, so that we can pass
4633 the help option on to the various sub-processes. */
4634 add_infile ("help-dummy", "c");
4637 /* Decide if undefined variable references are allowed in specs. */
4639 /* -v alone is safe. --version and --help alone or together are safe. Note
4640 that -v would make them unsafe, as they'd then be run for subprocesses as
4641 well, the location of which might depend on variables possibly coming
4642 from self-specs. Note also that the command name is counted in
4643 decoded_options_count. */
4645 unsigned help_version_count
= 0;
4648 help_version_count
++;
4650 if (print_help_list
)
4651 help_version_count
++;
4653 spec_undefvar_allowed
=
4654 ((verbose_flag
&& decoded_options_count
== 2)
4655 || help_version_count
== decoded_options_count
- 1);
4658 switches
[n_switches
].part1
= 0;
4660 infiles
[n_infiles
].name
= 0;
4663 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4664 and place that in the environment. */
4667 set_collect_gcc_options (void)
4672 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4674 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4675 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4678 for (i
= 0; (int) i
< n_switches
; i
++)
4680 const char *const *args
;
4683 obstack_grow (&collect_obstack
, " ", 1);
4687 /* Ignore elided switches. */
4688 if ((switches
[i
].live_cond
4689 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4693 obstack_grow (&collect_obstack
, "'-", 2);
4694 q
= switches
[i
].part1
;
4695 while ((p
= strchr (q
, '\'')))
4697 obstack_grow (&collect_obstack
, q
, p
- q
);
4698 obstack_grow (&collect_obstack
, "'\\''", 4);
4701 obstack_grow (&collect_obstack
, q
, strlen (q
));
4702 obstack_grow (&collect_obstack
, "'", 1);
4704 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4706 obstack_grow (&collect_obstack
, " '", 2);
4708 while ((p
= strchr (q
, '\'')))
4710 obstack_grow (&collect_obstack
, q
, p
- q
);
4711 obstack_grow (&collect_obstack
, "'\\''", 4);
4714 obstack_grow (&collect_obstack
, q
, strlen (q
));
4715 obstack_grow (&collect_obstack
, "'", 1);
4718 obstack_grow (&collect_obstack
, "\0", 1);
4719 xputenv (XOBFINISH (&collect_obstack
, char *));
4722 /* Process a spec string, accumulating and running commands. */
4724 /* These variables describe the input file name.
4725 input_file_number is the index on outfiles of this file,
4726 so that the output file name can be stored for later use by %o.
4727 input_basename is the start of the part of the input file
4728 sans all directory names, and basename_length is the number
4729 of characters starting there excluding the suffix .c or whatever. */
4731 static const char *gcc_input_filename
;
4732 static int input_file_number
;
4733 size_t input_filename_length
;
4734 static int basename_length
;
4735 static int suffixed_basename_length
;
4736 static const char *input_basename
;
4737 static const char *input_suffix
;
4738 #ifndef HOST_LACKS_INODE_NUMBERS
4739 static struct stat input_stat
;
4741 static int input_stat_set
;
4743 /* The compiler used to process the current input file. */
4744 static struct compiler
*input_file_compiler
;
4746 /* These are variables used within do_spec and do_spec_1. */
4748 /* Nonzero if an arg has been started and not yet terminated
4749 (with space, tab or newline). */
4750 static int arg_going
;
4752 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4753 is a temporary file name. */
4754 static int delete_this_arg
;
4756 /* Nonzero means %w has been seen; the next arg to be terminated
4757 is the output file name of this compilation. */
4758 static int this_is_output_file
;
4760 /* Nonzero means %s has been seen; the next arg to be terminated
4761 is the name of a library file and we should try the standard
4762 search dirs for it. */
4763 static int this_is_library_file
;
4765 /* Nonzero means %T has been seen; the next arg to be terminated
4766 is the name of a linker script and we should try all of the
4767 standard search dirs for it. If it is found insert a --script
4768 command line switch and then substitute the full path in place,
4769 otherwise generate an error message. */
4770 static int this_is_linker_script
;
4772 /* Nonzero means that the input of this command is coming from a pipe. */
4773 static int input_from_pipe
;
4775 /* Nonnull means substitute this for any suffix when outputting a switches
4777 static const char *suffix_subst
;
4779 /* If there is an argument being accumulated, terminate it and store it. */
4782 end_going_arg (void)
4788 obstack_1grow (&obstack
, 0);
4789 string
= XOBFINISH (&obstack
, const char *);
4790 if (this_is_library_file
)
4791 string
= find_file (string
);
4792 if (this_is_linker_script
)
4794 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4796 if (full_script_path
== NULL
)
4798 error ("unable to locate default linker script %qs in the library search paths", string
);
4799 /* Script was not found on search path. */
4802 store_arg ("--script", false, false);
4803 string
= full_script_path
;
4805 store_arg (string
, delete_this_arg
, this_is_output_file
);
4806 if (this_is_output_file
)
4807 outfiles
[input_file_number
] = string
;
4813 /* Parse the WRAPPER string which is a comma separated list of the command line
4814 and insert them into the beginning of argbuf. */
4817 insert_wrapper (const char *wrapper
)
4821 char *buf
= xstrdup (wrapper
);
4823 unsigned int old_length
= argbuf
.length ();
4831 while ((p
= strchr (p
, ',')) != NULL
);
4833 argbuf
.safe_grow (old_length
+ n
);
4834 memmove (argbuf
.address () + n
,
4836 old_length
* sizeof (const_char_p
));
4850 while ((p
= strchr (p
, ',')) != NULL
);
4851 gcc_assert (i
== n
);
4854 /* Process the spec SPEC and run the commands specified therein.
4855 Returns 0 if the spec is successfully processed; -1 if failed. */
4858 do_spec (const char *spec
)
4862 value
= do_spec_2 (spec
);
4864 /* Force out any unfinished command.
4865 If -pipe, this forces out the last command if it ended in `|'. */
4868 if (argbuf
.length () > 0
4869 && !strcmp (argbuf
.last (), "|"))
4872 set_collect_gcc_options ();
4874 if (argbuf
.length () > 0)
4882 do_spec_2 (const char *spec
)
4888 delete_this_arg
= 0;
4889 this_is_output_file
= 0;
4890 this_is_library_file
= 0;
4891 this_is_linker_script
= 0;
4892 input_from_pipe
= 0;
4893 suffix_subst
= NULL
;
4895 result
= do_spec_1 (spec
, 0, NULL
);
4903 /* Process the given spec string and add any new options to the end
4904 of the switches/n_switches array. */
4907 do_option_spec (const char *name
, const char *spec
)
4909 unsigned int i
, value_count
, value_len
;
4910 const char *p
, *q
, *value
;
4911 char *tmp_spec
, *tmp_spec_p
;
4913 if (configure_default_options
[0].name
== NULL
)
4916 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4917 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4919 if (i
== ARRAY_SIZE (configure_default_options
))
4922 value
= configure_default_options
[i
].value
;
4923 value_len
= strlen (value
);
4925 /* Compute the size of the final spec. */
4928 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4934 /* Replace each %(VALUE) by the specified value. */
4935 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4936 + value_count
* (value_len
- strlen ("%(VALUE)")));
4937 tmp_spec_p
= tmp_spec
;
4939 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4941 memcpy (tmp_spec_p
, q
, p
- q
);
4942 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4943 memcpy (tmp_spec_p
, value
, value_len
);
4944 tmp_spec_p
+= value_len
;
4945 q
= p
+ strlen ("%(VALUE)");
4947 strcpy (tmp_spec_p
, q
);
4949 do_self_spec (tmp_spec
);
4952 /* Process the given spec string and add any new options to the end
4953 of the switches/n_switches array. */
4956 do_self_spec (const char *spec
)
4961 do_spec_1 (" ", 0, NULL
);
4963 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4964 do_self_specs adds the replacements to switches array, so it shouldn't
4965 be processed afterwards. */
4966 for (i
= 0; i
< n_switches
; i
++)
4967 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4968 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4970 if (argbuf
.length () > 0)
4972 const char **argbuf_copy
;
4973 struct cl_decoded_option
*decoded_options
;
4974 struct cl_option_handlers handlers
;
4975 unsigned int decoded_options_count
;
4978 /* Create a copy of argbuf with a dummy argv[0] entry for
4979 decode_cmdline_options_to_array. */
4980 argbuf_copy
= XNEWVEC (const char *,
4981 argbuf
.length () + 1);
4982 argbuf_copy
[0] = "";
4983 memcpy (argbuf_copy
+ 1, argbuf
.address (),
4984 argbuf
.length () * sizeof (const char *));
4986 decode_cmdline_options_to_array (argbuf
.length () + 1,
4988 CL_DRIVER
, &decoded_options
,
4989 &decoded_options_count
);
4992 set_option_handlers (&handlers
);
4994 for (j
= 1; j
< decoded_options_count
; j
++)
4996 switch (decoded_options
[j
].opt_index
)
4998 case OPT_SPECIAL_input_file
:
4999 /* Specs should only generate options, not input
5001 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
5002 fatal_error (input_location
,
5003 "switch %qs does not start with %<-%>",
5004 decoded_options
[j
].arg
);
5006 fatal_error (input_location
,
5007 "spec-generated switch is just %<-%>");
5010 case OPT_fcompare_debug_second
:
5011 case OPT_fcompare_debug
:
5012 case OPT_fcompare_debug_
:
5014 /* Avoid duplicate processing of some options from
5015 compare-debug specs; just save them here. */
5016 save_switch (decoded_options
[j
].canonical_option
[0],
5017 (decoded_options
[j
].canonical_option_num_elements
5019 &decoded_options
[j
].canonical_option
[1], false, true);
5023 read_cmdline_option (&global_options
, &global_options_set
,
5024 decoded_options
+ j
, UNKNOWN_LOCATION
,
5025 CL_DRIVER
, &handlers
, global_dc
);
5030 free (decoded_options
);
5033 switches
[n_switches
].part1
= 0;
5037 /* Callback for processing %D and %I specs. */
5039 struct spec_path_info
{
5044 bool separate_options
;
5048 spec_path (char *path
, void *data
)
5050 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
5054 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
5057 if (info
->append_len
!= 0)
5059 len
= strlen (path
);
5060 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
5063 if (!is_directory (path
, true))
5066 do_spec_1 (info
->option
, 1, NULL
);
5067 if (info
->separate_options
)
5068 do_spec_1 (" ", 0, NULL
);
5070 if (info
->append_len
== 0)
5072 len
= strlen (path
);
5073 save
= path
[len
- 1];
5074 if (IS_DIR_SEPARATOR (path
[len
- 1]))
5075 path
[len
- 1] = '\0';
5078 do_spec_1 (path
, 1, NULL
);
5079 do_spec_1 (" ", 0, NULL
);
5081 /* Must not damage the original path. */
5082 if (info
->append_len
== 0)
5083 path
[len
- 1] = save
;
5088 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
5092 create_at_file (char **argv
)
5094 char *temp_file
= make_temp_file ("");
5095 char *at_argument
= concat ("@", temp_file
, NULL
);
5096 FILE *f
= fopen (temp_file
, "w");
5100 fatal_error (input_location
, "could not open temporary response file %s",
5103 status
= writeargv (argv
, f
);
5106 fatal_error (input_location
,
5107 "could not write to temporary response file %s",
5110 status
= fclose (f
);
5113 fatal_error (input_location
, "could not close temporary response file %s",
5116 store_arg (at_argument
, 0, 0);
5118 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5121 /* True if we should compile INFILE. */
5124 compile_input_file_p (struct infile
*infile
)
5126 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5127 if (infile
->incompiler
== input_file_compiler
)
5132 /* Process each member of VEC as a spec. */
5135 do_specs_vec (vec
<char_p
> vec
)
5140 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
5142 do_spec_1 (opt
, 1, NULL
);
5143 /* Make each accumulated option a separate argument. */
5144 do_spec_1 (" ", 0, NULL
);
5148 /* Process the sub-spec SPEC as a portion of a larger spec.
5149 This is like processing a whole spec except that we do
5150 not initialize at the beginning and we do not supply a
5151 newline by default at the end.
5152 INSWITCH nonzero means don't process %-sequences in SPEC;
5153 in this case, % is treated as an ordinary character.
5154 This is used while substituting switches.
5155 INSWITCH nonzero also causes SPC not to terminate an argument.
5157 Value is zero unless a line was finished
5158 and the command on that line reported an error. */
5161 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5163 const char *p
= spec
;
5168 /* If it's an empty string argument to a switch, keep it as is. */
5169 if (inswitch
&& !*p
)
5173 /* If substituting a switch, treat all chars like letters.
5174 Otherwise, NL, SPC, TAB and % are special. */
5175 switch (inswitch
? 'a' : c
)
5180 if (argbuf
.length () > 0
5181 && !strcmp (argbuf
.last (), "|"))
5183 /* A `|' before the newline means use a pipe here,
5184 but only if -pipe was specified.
5185 Otherwise, execute now and don't pass the `|' as an arg. */
5188 input_from_pipe
= 1;
5195 set_collect_gcc_options ();
5197 if (argbuf
.length () > 0)
5203 /* Reinitialize for a new command, and for a new argument. */
5206 delete_this_arg
= 0;
5207 this_is_output_file
= 0;
5208 this_is_library_file
= 0;
5209 this_is_linker_script
= 0;
5210 input_from_pipe
= 0;
5217 obstack_1grow (&obstack
, c
);
5225 /* Reinitialize for a new argument. */
5226 delete_this_arg
= 0;
5227 this_is_output_file
= 0;
5228 this_is_library_file
= 0;
5229 this_is_linker_script
= 0;
5236 fatal_error (input_location
, "spec %qs invalid", spec
);
5239 if (save_temps_length
)
5240 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5242 obstack_grow (&obstack
, input_basename
, basename_length
);
5243 if (compare_debug
< 0)
5244 obstack_grow (&obstack
, ".gk", 3);
5249 if (save_temps_length
)
5250 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5252 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
5253 if (compare_debug
< 0)
5254 obstack_grow (&obstack
, ".gk", 3);
5259 delete_this_arg
= 2;
5262 /* Dump out the directories specified with LIBRARY_PATH,
5263 followed by the absolute directories
5264 that we search for startfiles. */
5267 struct spec_path_info info
;
5270 info
.append_len
= 0;
5271 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5272 /* Used on systems which record the specified -L dirs
5273 and use them to search for dynamic linking.
5274 Relative directories always come from -B,
5275 and it is better not to use them for searching
5276 at run time. In particular, stage1 loses. */
5277 info
.omit_relative
= true;
5279 info
.omit_relative
= false;
5281 info
.separate_options
= false;
5283 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5288 /* %efoo means report an error with `foo' as error message
5289 and don't execute any more commands for this file. */
5293 while (*p
!= 0 && *p
!= '\n')
5295 buf
= (char *) alloca (p
- q
+ 1);
5296 strncpy (buf
, q
, p
- q
);
5298 error ("%s", _(buf
));
5303 /* %nfoo means report a notice with `foo' on stderr. */
5307 while (*p
!= 0 && *p
!= '\n')
5309 buf
= (char *) alloca (p
- q
+ 1);
5310 strncpy (buf
, q
, p
- q
);
5312 inform (UNKNOWN_LOCATION
, "%s", _(buf
));
5322 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5323 defined, and it is not a directory, and it is
5324 writable, use it. Otherwise, treat this like any
5325 other temporary file. */
5327 if ((!save_temps_flag
)
5328 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5329 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5331 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5332 strlen (HOST_BIT_BUCKET
));
5333 delete_this_arg
= 0;
5338 goto create_temp_file
;
5342 obstack_1grow (&obstack
, '-');
5343 delete_this_arg
= 0;
5346 /* consume suffix */
5347 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5349 if (p
[0] == '%' && p
[1] == 'O')
5354 goto create_temp_file
;
5358 /* consume suffix */
5359 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5361 if (p
[0] == '%' && p
[1] == 'O')
5366 goto create_temp_file
;
5372 struct temp_name
*t
;
5374 const char *suffix
= p
;
5375 char *saved_suffix
= NULL
;
5377 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5379 suffix_length
= p
- suffix
;
5380 if (p
[0] == '%' && p
[1] == 'O')
5383 /* We don't support extra suffix characters after %O. */
5384 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5385 fatal_error (input_location
,
5386 "spec %qs has invalid %<%%0%c%>", spec
, *p
);
5387 if (suffix_length
== 0)
5388 suffix
= TARGET_OBJECT_SUFFIX
;
5392 = XNEWVEC (char, suffix_length
5393 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
5394 strncpy (saved_suffix
, suffix
, suffix_length
);
5395 strcpy (saved_suffix
+ suffix_length
,
5396 TARGET_OBJECT_SUFFIX
);
5398 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5401 if (compare_debug
< 0)
5403 suffix
= concat (".gk", suffix
, NULL
);
5407 /* If -save-temps=obj and -o were specified, use that for the
5409 if (save_temps_length
)
5412 temp_filename_length
5413 = save_temps_length
+ suffix_length
+ 1;
5414 tmp
= (char *) alloca (temp_filename_length
);
5415 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5416 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5417 tmp
[save_temps_length
+ suffix_length
] = '\0';
5418 temp_filename
= save_string (tmp
, save_temps_length
5420 obstack_grow (&obstack
, temp_filename
,
5421 temp_filename_length
);
5423 delete_this_arg
= 0;
5427 /* If the gcc_input_filename has the same suffix specified
5428 for the %g, %u, or %U, and -save-temps is specified,
5429 we could end up using that file as an intermediate
5430 thus clobbering the user's source file (.e.g.,
5431 gcc -save-temps foo.s would clobber foo.s with the
5432 output of cpp0). So check for this condition and
5433 generate a temp file as the intermediate. */
5435 if (save_temps_flag
)
5438 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5439 tmp
= (char *) alloca (temp_filename_length
);
5440 memcpy (tmp
, input_basename
, basename_length
);
5441 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5442 tmp
[basename_length
+ suffix_length
] = '\0';
5443 temp_filename
= tmp
;
5445 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
5447 #ifndef HOST_LACKS_INODE_NUMBERS
5448 struct stat st_temp
;
5450 /* Note, set_input() resets input_stat_set to 0. */
5451 if (input_stat_set
== 0)
5453 input_stat_set
= stat (gcc_input_filename
,
5455 if (input_stat_set
>= 0)
5459 /* If we have the stat for the gcc_input_filename
5460 and we can do the stat for the temp_filename
5461 then the they could still refer to the same
5462 file if st_dev/st_ino's are the same. */
5463 if (input_stat_set
!= 1
5464 || stat (temp_filename
, &st_temp
) < 0
5465 || input_stat
.st_dev
!= st_temp
.st_dev
5466 || input_stat
.st_ino
!= st_temp
.st_ino
)
5468 /* Just compare canonical pathnames. */
5469 char* input_realname
= lrealpath (gcc_input_filename
);
5470 char* temp_realname
= lrealpath (temp_filename
);
5471 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
5472 free (input_realname
);
5473 free (temp_realname
);
5478 = save_string (temp_filename
,
5479 temp_filename_length
- 1);
5480 obstack_grow (&obstack
, temp_filename
,
5481 temp_filename_length
);
5483 delete_this_arg
= 0;
5489 /* See if we already have an association of %g/%u/%U and
5491 for (t
= temp_names
; t
; t
= t
->next
)
5492 if (t
->length
== suffix_length
5493 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5494 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5497 /* Make a new association if needed. %u and %j
5499 if (t
== 0 || c
== 'u' || c
== 'j')
5503 t
= XNEW (struct temp_name
);
5504 t
->next
= temp_names
;
5507 t
->length
= suffix_length
;
5510 t
->suffix
= saved_suffix
;
5511 saved_suffix
= NULL
;
5514 t
->suffix
= save_string (suffix
, suffix_length
);
5515 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5516 temp_filename
= make_temp_file (t
->suffix
);
5517 temp_filename_length
= strlen (temp_filename
);
5518 t
->filename
= temp_filename
;
5519 t
->filename_length
= temp_filename_length
;
5522 free (saved_suffix
);
5524 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5525 delete_this_arg
= 1;
5533 if (at_file_supplied
)
5535 /* We are going to expand `%i' to `@FILE', where FILE
5536 is a newly-created temporary filename. The filenames
5537 that would usually be expanded in place of %o will be
5538 written to the temporary file. */
5543 for (i
= 0; i
< n_infiles
; i
++)
5544 if (compile_input_file_p (&infiles
[i
]))
5547 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5549 /* Copy the strings over. */
5550 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5551 if (compile_input_file_p (&infiles
[i
]))
5553 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5554 infiles
[i
].compiled
= true;
5559 create_at_file (argv
);
5562 for (i
= 0; (int) i
< n_infiles
; i
++)
5563 if (compile_input_file_p (&infiles
[i
]))
5565 store_arg (infiles
[i
].name
, 0, 0);
5566 infiles
[i
].compiled
= true;
5571 obstack_grow (&obstack
, gcc_input_filename
,
5572 input_filename_length
);
5579 struct spec_path_info info
;
5583 do_spec_1 ("-imultilib", 1, NULL
);
5584 /* Make this a separate argument. */
5585 do_spec_1 (" ", 0, NULL
);
5586 do_spec_1 (multilib_dir
, 1, NULL
);
5587 do_spec_1 (" ", 0, NULL
);
5592 do_spec_1 ("-imultiarch", 1, NULL
);
5593 /* Make this a separate argument. */
5594 do_spec_1 (" ", 0, NULL
);
5595 do_spec_1 (multiarch_dir
, 1, NULL
);
5596 do_spec_1 (" ", 0, NULL
);
5599 if (gcc_exec_prefix
)
5601 do_spec_1 ("-iprefix", 1, NULL
);
5602 /* Make this a separate argument. */
5603 do_spec_1 (" ", 0, NULL
);
5604 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5605 do_spec_1 (" ", 0, NULL
);
5608 if (target_system_root_changed
||
5609 (target_system_root
&& target_sysroot_hdrs_suffix
))
5611 do_spec_1 ("-isysroot", 1, NULL
);
5612 /* Make this a separate argument. */
5613 do_spec_1 (" ", 0, NULL
);
5614 do_spec_1 (target_system_root
, 1, NULL
);
5615 if (target_sysroot_hdrs_suffix
)
5616 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5617 do_spec_1 (" ", 0, NULL
);
5620 info
.option
= "-isystem";
5621 info
.append
= "include";
5622 info
.append_len
= strlen (info
.append
);
5623 info
.omit_relative
= false;
5624 info
.separate_options
= true;
5626 for_each_path (&include_prefixes
, false, info
.append_len
,
5629 info
.append
= "include-fixed";
5630 if (*sysroot_hdrs_suffix_spec
)
5631 info
.append
= concat (info
.append
, dir_separator_str
,
5632 multilib_dir
, NULL
);
5633 info
.append_len
= strlen (info
.append
);
5634 for_each_path (&include_prefixes
, false, info
.append_len
,
5641 int max
= n_infiles
;
5642 max
+= lang_specific_extra_outfiles
;
5644 if (HAVE_GNU_LD
&& at_file_supplied
)
5646 /* We are going to expand `%o' to `@FILE', where FILE
5647 is a newly-created temporary filename. The filenames
5648 that would usually be expanded in place of %o will be
5649 written to the temporary file. */
5654 /* Convert OUTFILES into a form suitable for writeargv. */
5656 /* Determine how many are non-NULL. */
5657 for (n_files
= 0, i
= 0; i
< max
; i
++)
5658 n_files
+= outfiles
[i
] != NULL
;
5660 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5662 /* Copy the strings over. */
5663 for (i
= 0, j
= 0; i
< max
; i
++)
5666 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5671 create_at_file (argv
);
5674 for (i
= 0; i
< max
; i
++)
5676 store_arg (outfiles
[i
], 0, 0);
5681 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5686 this_is_library_file
= 1;
5690 this_is_linker_script
= 1;
5694 outfiles
[input_file_number
] = NULL
;
5698 this_is_output_file
= 1;
5703 unsigned int cur_index
= argbuf
.length ();
5704 /* Handle the {...} following the %W. */
5706 fatal_error (input_location
,
5707 "spec %qs has invalid %<%%W%c%>", spec
, *p
);
5708 p
= handle_braces (p
+ 1);
5712 /* If any args were output, mark the last one for deletion
5714 if (argbuf
.length () != cur_index
)
5715 record_temp_file (argbuf
.last (), 0, 1);
5719 /* %x{OPTION} records OPTION for %X to output. */
5727 /* Skip past the option value and make a copy. */
5729 fatal_error (input_location
,
5730 "spec %qs has invalid %<%%x%c%>", spec
, *p
);
5733 string
= save_string (p1
+ 1, p
- p1
- 2);
5735 /* See if we already recorded this option. */
5736 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5737 if (! strcmp (string
, opt
))
5743 /* This option is new; add it. */
5744 add_linker_option (string
, strlen (string
));
5749 /* Dump out the options accumulated previously using %x. */
5751 do_specs_vec (linker_options
);
5754 /* Dump out the options accumulated previously using -Wa,. */
5756 do_specs_vec (assembler_options
);
5759 /* Dump out the options accumulated previously using -Wp,. */
5761 do_specs_vec (preprocessor_options
);
5764 /* Here are digits and numbers that just process
5765 a certain constant string as a spec. */
5768 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5774 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5780 value
= do_spec_1 (asm_spec
, 0, NULL
);
5786 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5793 const char *const spec
5794 = (input_file_compiler
->cpp_spec
5795 ? input_file_compiler
->cpp_spec
5797 value
= do_spec_1 (spec
, 0, NULL
);
5804 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5810 value
= do_spec_1 (link_spec
, 0, NULL
);
5816 value
= do_spec_1 (lib_spec
, 0, NULL
);
5822 if (multilib_os_dir
== NULL
)
5823 obstack_1grow (&obstack
, '.');
5825 obstack_grow (&obstack
, multilib_os_dir
,
5826 strlen (multilib_os_dir
));
5830 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5836 /* We assume there is a directory
5837 separator at the end of this string. */
5838 if (target_system_root
)
5840 obstack_grow (&obstack
, target_system_root
,
5841 strlen (target_system_root
));
5842 if (target_sysroot_suffix
)
5843 obstack_grow (&obstack
, target_sysroot_suffix
,
5844 strlen (target_sysroot_suffix
));
5849 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5854 /* Here we define characters other than letters and digits. */
5857 p
= handle_braces (p
);
5863 p
= handle_spec_function (p
, NULL
);
5869 obstack_1grow (&obstack
, '%');
5876 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5878 suffix_subst
= save_string (p
- 1, len
+ 1);
5883 /* Henceforth ignore the option(s) matching the pattern
5889 int have_wildcard
= 0;
5894 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5896 switch_option
= SWITCH_IGNORE
;
5898 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5901 if (p
[len
-1] == '*')
5904 for (i
= 0; i
< n_switches
; i
++)
5905 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5906 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5908 switches
[i
].live_cond
|= switch_option
;
5909 /* User switch be validated from validate_all_switches.
5910 when the definition is seen from the spec file.
5911 If not defined anywhere, will be rejected. */
5912 if (switches
[i
].known
)
5913 switches
[i
].validated
= true;
5921 if (soft_matched_part
)
5923 if (soft_matched_part
[0])
5924 do_spec_1 (soft_matched_part
, 1, NULL
);
5925 /* Only insert a space after the substitution if it is at the
5926 end of the current sequence. So if:
5928 "%{foo=*:bar%*}%{foo=*:one%*two}"
5930 matches -foo=hello then it will produce:
5932 barhello onehellotwo
5934 if (*p
== 0 || *p
== '}')
5935 do_spec_1 (" ", 0, NULL
);
5938 /* Catch the case where a spec string contains something like
5939 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5940 hand side of the :. */
5941 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5944 /* Process a string found as the value of a spec given by name.
5945 This feature allows individual machine descriptions
5946 to add and use their own specs. */
5949 const char *name
= p
;
5950 struct spec_list
*sl
;
5953 /* The string after the S/P is the name of a spec that is to be
5955 while (*p
&& *p
!= ')')
5958 /* See if it's in the list. */
5959 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5960 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5962 name
= *(sl
->ptr_spec
);
5964 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
5972 value
= do_spec_1 (name
, 0, NULL
);
5977 /* Discard the closing paren. */
5984 error ("spec failure: unrecognized spec option %qc", c
);
5990 /* Backslash: treat next character as ordinary. */
5995 /* Ordinary character: put it into the current argument. */
5996 obstack_1grow (&obstack
, c
);
6000 /* End of string. If we are processing a spec function, we need to
6001 end any pending argument. */
6002 if (processing_spec_function
)
6008 /* Look up a spec function. */
6010 static const struct spec_function
*
6011 lookup_spec_function (const char *name
)
6013 const struct spec_function
*sf
;
6015 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
6016 if (strcmp (sf
->name
, name
) == 0)
6022 /* Evaluate a spec function. */
6025 eval_spec_function (const char *func
, const char *args
)
6027 const struct spec_function
*sf
;
6028 const char *funcval
;
6030 /* Saved spec processing context. */
6031 vec
<const_char_p
> save_argbuf
;
6034 int save_delete_this_arg
;
6035 int save_this_is_output_file
;
6036 int save_this_is_library_file
;
6037 int save_input_from_pipe
;
6038 int save_this_is_linker_script
;
6039 const char *save_suffix_subst
;
6041 int save_growing_size
;
6042 void *save_growing_value
= NULL
;
6044 sf
= lookup_spec_function (func
);
6046 fatal_error (input_location
, "unknown spec function %qs", func
);
6048 /* Push the spec processing context. */
6049 save_argbuf
= argbuf
;
6051 save_arg_going
= arg_going
;
6052 save_delete_this_arg
= delete_this_arg
;
6053 save_this_is_output_file
= this_is_output_file
;
6054 save_this_is_library_file
= this_is_library_file
;
6055 save_this_is_linker_script
= this_is_linker_script
;
6056 save_input_from_pipe
= input_from_pipe
;
6057 save_suffix_subst
= suffix_subst
;
6059 /* If we have some object growing now, finalize it so the args and function
6060 eval proceed from a cleared context. This is needed to prevent the first
6061 constructed arg from mistakenly including the growing value. We'll push
6062 this value back on the obstack once the function evaluation is done, to
6063 restore a consistent processing context for our caller. This is fine as
6064 the address of growing objects isn't guaranteed to remain stable until
6065 they are finalized, and we expect this situation to be rare enough for
6066 the extra copy not to be an issue. */
6067 save_growing_size
= obstack_object_size (&obstack
);
6068 if (save_growing_size
> 0)
6069 save_growing_value
= obstack_finish (&obstack
);
6071 /* Create a new spec processing context, and build the function
6075 if (do_spec_2 (args
) < 0)
6076 fatal_error (input_location
, "error in args to spec function %qs", func
);
6078 /* argbuf_index is an index for the next argument to be inserted, and
6079 so contains the count of the args already inserted. */
6081 funcval
= (*sf
->func
) (argbuf
.length (),
6084 /* Pop the spec processing context. */
6086 argbuf
= save_argbuf
;
6088 arg_going
= save_arg_going
;
6089 delete_this_arg
= save_delete_this_arg
;
6090 this_is_output_file
= save_this_is_output_file
;
6091 this_is_library_file
= save_this_is_library_file
;
6092 this_is_linker_script
= save_this_is_linker_script
;
6093 input_from_pipe
= save_input_from_pipe
;
6094 suffix_subst
= save_suffix_subst
;
6096 if (save_growing_size
> 0)
6097 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
6102 /* Handle a spec function call of the form:
6106 ARGS is processed as a spec in a separate context and split into an
6107 argument vector in the normal fashion. The function returns a string
6108 containing a spec which we then process in the caller's context, or
6109 NULL if no processing is required.
6111 If RETVAL_NONNULL is not NULL, then store a bool whether function
6112 returned non-NULL. */
6115 handle_spec_function (const char *p
, bool *retval_nonnull
)
6118 const char *endp
, *funcval
;
6121 processing_spec_function
++;
6123 /* Get the function name. */
6124 for (endp
= p
; *endp
!= '\0'; endp
++)
6126 if (*endp
== '(') /* ) */
6128 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6129 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6130 fatal_error (input_location
, "malformed spec function name");
6132 if (*endp
!= '(') /* ) */
6133 fatal_error (input_location
, "no arguments for spec function");
6134 func
= save_string (p
, endp
- p
);
6137 /* Get the arguments. */
6138 for (count
= 0; *endp
!= '\0'; endp
++)
6147 else if (*endp
== '(') /* ) */
6152 fatal_error (input_location
, "malformed spec function arguments");
6153 args
= save_string (p
, endp
- p
);
6156 /* p now points to just past the end of the spec function expression. */
6158 funcval
= eval_spec_function (func
, args
);
6159 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6162 *retval_nonnull
= funcval
!= NULL
;
6167 processing_spec_function
--;
6172 /* Inline subroutine of handle_braces. Returns true if the current
6173 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6175 input_suffix_matches (const char *atom
, const char *end_atom
)
6177 return (input_suffix
6178 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6179 && input_suffix
[end_atom
- atom
] == '\0');
6182 /* Subroutine of handle_braces. Returns true if the current
6183 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6185 input_spec_matches (const char *atom
, const char *end_atom
)
6187 return (input_file_compiler
6188 && input_file_compiler
->suffix
6189 && input_file_compiler
->suffix
[0] != '\0'
6190 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6192 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6195 /* Subroutine of handle_braces. Returns true if a switch
6196 matching the atom bracketed by ATOM and END_ATOM appeared on the
6199 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6202 int len
= end_atom
- atom
;
6203 int plen
= starred
? len
: -1;
6205 for (i
= 0; i
< n_switches
; i
++)
6206 if (!strncmp (switches
[i
].part1
, atom
, len
)
6207 && (starred
|| switches
[i
].part1
[len
] == '\0')
6208 && check_live_switch (i
, plen
))
6211 /* Check if a switch with separated form matching the atom.
6212 We check -D and -U switches. */
6213 else if (switches
[i
].args
!= 0)
6215 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
6216 && *switches
[i
].part1
== atom
[0])
6218 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
6219 && (starred
|| (switches
[i
].part1
[1] == '\0'
6220 && switches
[i
].args
[0][len
- 1] == '\0'))
6221 && check_live_switch (i
, (starred
? 1 : -1)))
6229 /* Inline subroutine of handle_braces. Mark all of the switches which
6230 match ATOM (extends to END_ATOM; STARRED indicates whether there
6231 was a star after the atom) for later processing. */
6233 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6236 int len
= end_atom
- atom
;
6237 int plen
= starred
? len
: -1;
6239 for (i
= 0; i
< n_switches
; i
++)
6240 if (!strncmp (switches
[i
].part1
, atom
, len
)
6241 && (starred
|| switches
[i
].part1
[len
] == '\0')
6242 && check_live_switch (i
, plen
))
6243 switches
[i
].ordering
= 1;
6246 /* Inline subroutine of handle_braces. Process all the currently
6247 marked switches through give_switch, and clear the marks. */
6249 process_marked_switches (void)
6253 for (i
= 0; i
< n_switches
; i
++)
6254 if (switches
[i
].ordering
== 1)
6256 switches
[i
].ordering
= 0;
6261 /* Handle a %{ ... } construct. P points just inside the leading {.
6262 Returns a pointer one past the end of the brace block, or 0
6263 if we call do_spec_1 and that returns -1. */
6266 handle_braces (const char *p
)
6268 const char *atom
, *end_atom
;
6269 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6270 char *esc_buf
= NULL
, *d_esc_buf
= NULL
;
6272 const char *orig
= p
;
6280 bool a_must_be_last
= false;
6281 bool ordered_set
= false;
6282 bool disjunct_set
= false;
6283 bool disj_matched
= false;
6284 bool disj_starred
= true;
6285 bool n_way_choice
= false;
6286 bool n_way_matched
= false;
6288 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6295 /* Scan one "atom" (S in the description above of %{}, possibly
6296 with '!', '.', '@', ',', or '*' modifiers). */
6298 a_is_suffix
= false;
6299 a_is_starred
= false;
6300 a_is_negated
= false;
6301 a_is_spectype
= false;
6305 p
++, a_is_negated
= true;
6308 if (*p
== '%' && p
[1] == ':')
6312 p
= handle_spec_function (p
+ 2, &a_matched
);
6317 p
++, a_is_suffix
= true;
6319 p
++, a_is_spectype
= true;
6323 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6324 || *p
== ',' || *p
== '.' || *p
== '@' || *p
== '\\')
6330 fatal_error (input_location
,
6331 "braced spec %qs ends in escape", orig
);
6343 if (esc_buf
&& esc_buf
!= d_esc_buf
)
6346 ep
= esc_buf
= (char *) xmalloc (end_atom
- atom
- esc
+ 1);
6347 for (ap
= atom
; ap
!= end_atom
; ap
++, ep
++)
6359 p
++, a_is_starred
= 1;
6366 /* Substitute the switch(es) indicated by the current atom. */
6368 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6369 || a_is_spectype
|| atom
== end_atom
)
6372 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6375 process_marked_switches ();
6379 /* Substitute some text if the current atom appears as a switch
6381 disjunct_set
= true;
6385 if (atom
&& atom
== end_atom
)
6387 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6388 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6392 /* An empty term may appear as the last choice of an
6393 N-way choice set; it means "otherwise". */
6394 a_must_be_last
= true;
6395 disj_matched
= !n_way_matched
;
6396 disj_starred
= false;
6400 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6404 disj_starred
= false;
6406 /* Don't bother testing this atom if we already have a
6408 if (!disj_matched
&& !n_way_matched
)
6411 /* a_matched is already set by handle_spec_function. */;
6412 else if (a_is_suffix
)
6413 a_matched
= input_suffix_matches (atom
, end_atom
);
6414 else if (a_is_spectype
)
6415 a_matched
= input_spec_matches (atom
, end_atom
);
6417 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6419 if (a_matched
!= a_is_negated
)
6421 disj_matched
= true;
6423 d_end_atom
= end_atom
;
6424 d_esc_buf
= esc_buf
;
6431 /* Found the body, that is, the text to substitute if the
6432 current disjunction matches. */
6433 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6434 disj_matched
&& !n_way_matched
);
6438 /* If we have an N-way choice, reset state for the next
6442 n_way_choice
= true;
6443 n_way_matched
|= disj_matched
;
6444 disj_matched
= false;
6445 disj_starred
= true;
6446 d_atom
= d_end_atom
= NULL
;
6455 while (*p
++ != '}');
6458 if (d_esc_buf
&& d_esc_buf
!= esc_buf
)
6466 fatal_error (input_location
, "braced spec %qs is invalid at %qc", orig
, *p
);
6471 /* Subroutine of handle_braces. Scan and process a brace substitution body
6472 (X in the description of %{} syntax). P points one past the colon;
6473 ATOM and END_ATOM bracket the first atom which was found to be true
6474 (present) in the current disjunction; STARRED indicates whether all
6475 the atoms in the current disjunction were starred (for syntax validation);
6476 MATCHED indicates whether the disjunction matched or not, and therefore
6477 whether or not the body is to be processed through do_spec_1 or just
6478 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6482 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6483 int starred
, int matched
)
6485 const char *body
, *end_body
;
6486 unsigned int nesting_level
;
6487 bool have_subst
= false;
6489 /* Locate the closing } or ;, honoring nested braces.
6490 Trim trailing whitespace. */
6499 if (!--nesting_level
)
6502 else if (*p
== ';' && nesting_level
== 1)
6504 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6506 else if (*p
== '\0')
6512 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6515 if (have_subst
&& !starred
)
6520 /* Copy the substitution body to permanent storage and execute it.
6521 If have_subst is false, this is a simple matter of running the
6522 body through do_spec_1... */
6523 char *string
= save_string (body
, end_body
- body
);
6526 if (do_spec_1 (string
, 0, NULL
) < 0)
6534 /* ... but if have_subst is true, we have to process the
6535 body once for each matching switch, with %* set to the
6536 variant part of the switch. */
6537 unsigned int hard_match_len
= end_atom
- atom
;
6540 for (i
= 0; i
< n_switches
; i
++)
6541 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6542 && check_live_switch (i
, hard_match_len
))
6544 if (do_spec_1 (string
, 0,
6545 &switches
[i
].part1
[hard_match_len
]) < 0)
6550 /* Pass any arguments this switch has. */
6552 suffix_subst
= NULL
;
6561 fatal_error (input_location
, "braced spec body %qs is invalid", body
);
6564 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6565 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6566 spec, or -1 if either exact match or %* is used.
6568 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
6569 whose value does not begin with "no-" is obsoleted by the same value
6570 with the "no-", similarly for a switch with the "no-" prefix. */
6573 check_live_switch (int switchnum
, int prefix_length
)
6575 const char *name
= switches
[switchnum
].part1
;
6578 /* If we already processed this switch and determined if it was
6579 live or not, return our past determination. */
6580 if (switches
[switchnum
].live_cond
!= 0)
6581 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6582 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6583 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6586 /* In the common case of {<at-most-one-letter>*}, a negating
6587 switch would always match, so ignore that case. We will just
6588 send the conflicting switches to the compiler phase. */
6589 if (prefix_length
>= 0 && prefix_length
<= 1)
6592 /* Now search for duplicate in a manner that depends on the name. */
6596 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6597 if (switches
[i
].part1
[0] == 'O')
6599 switches
[switchnum
].validated
= true;
6600 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6605 case 'W': case 'f': case 'm': case 'g':
6606 if (! strncmp (name
+ 1, "no-", 3))
6608 /* We have Xno-YYY, search for XYYY. */
6609 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6610 if (switches
[i
].part1
[0] == name
[0]
6611 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6613 /* --specs are validated with the validate_switches mechanism. */
6614 if (switches
[switchnum
].known
)
6615 switches
[switchnum
].validated
= true;
6616 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6622 /* We have XYYY, search for Xno-YYY. */
6623 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6624 if (switches
[i
].part1
[0] == name
[0]
6625 && switches
[i
].part1
[1] == 'n'
6626 && switches
[i
].part1
[2] == 'o'
6627 && switches
[i
].part1
[3] == '-'
6628 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6630 /* --specs are validated with the validate_switches mechanism. */
6631 if (switches
[switchnum
].known
)
6632 switches
[switchnum
].validated
= true;
6633 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6640 /* Otherwise the switch is live. */
6641 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6645 /* Pass a switch to the current accumulating command
6646 in the same form that we received it.
6647 SWITCHNUM identifies the switch; it is an index into
6648 the vector of switches gcc received, which is `switches'.
6649 This cannot fail since it never finishes a command line.
6651 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6654 give_switch (int switchnum
, int omit_first_word
)
6656 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6659 if (!omit_first_word
)
6661 do_spec_1 ("-", 0, NULL
);
6662 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6665 if (switches
[switchnum
].args
!= 0)
6668 for (p
= switches
[switchnum
].args
; *p
; p
++)
6670 const char *arg
= *p
;
6672 do_spec_1 (" ", 0, NULL
);
6675 unsigned length
= strlen (arg
);
6678 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6679 if (arg
[length
] == '.')
6681 (CONST_CAST (char *, arg
))[length
] = 0;
6685 do_spec_1 (arg
, 1, NULL
);
6687 (CONST_CAST (char *, arg
))[length
] = '.';
6688 do_spec_1 (suffix_subst
, 1, NULL
);
6691 do_spec_1 (arg
, 1, NULL
);
6695 do_spec_1 (" ", 0, NULL
);
6696 switches
[switchnum
].validated
= true;
6699 /* Print GCC configuration (e.g. version, thread model, target,
6700 configuration_arguments) to a given FILE. */
6703 print_configuration (FILE *file
)
6708 fnotice (file
, "Target: %s\n", spec_machine
);
6709 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
6711 #ifdef THREAD_MODEL_SPEC
6712 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6713 but there's no point in doing all this processing just to get
6714 thread_model back. */
6715 obstack_init (&obstack
);
6716 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6717 obstack_1grow (&obstack
, '\0');
6718 thrmod
= XOBFINISH (&obstack
, const char *);
6720 thrmod
= thread_model
;
6723 fnotice (file
, "Thread model: %s\n", thrmod
);
6725 /* compiler_version is truncated at the first space when initialized
6726 from version string, so truncate version_string at the first space
6727 before comparing. */
6728 for (n
= 0; version_string
[n
]; n
++)
6729 if (version_string
[n
] == ' ')
6732 if (! strncmp (version_string
, compiler_version
, n
)
6733 && compiler_version
[n
] == 0)
6734 fnotice (file
, "gcc version %s %s\n", version_string
,
6737 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n",
6738 version_string
, pkgversion_string
, compiler_version
);
6742 #define RETRY_ICE_ATTEMPTS 3
6744 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
6747 files_equal_p (char *file1
, char *file2
)
6749 struct stat st1
, st2
;
6752 const int bufsize
= 8192;
6753 char *buf
= XNEWVEC (char, bufsize
);
6755 fd1
= open (file1
, O_RDONLY
);
6756 fd2
= open (file2
, O_RDONLY
);
6758 if (fd1
< 0 || fd2
< 0)
6761 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
6764 if (st1
.st_size
!= st2
.st_size
)
6767 for (n
= st1
.st_size
; n
; n
-= len
)
6770 if ((int) len
> bufsize
/ 2)
6773 if (read (fd1
, buf
, len
) != (int) len
6774 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
6779 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
6796 /* Check that compiler's output doesn't differ across runs.
6797 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
6798 stdout and stderr for each compiler run. Return true if all of
6799 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
6802 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
6805 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
6807 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
6808 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
6810 fnotice (stderr
, "The bug is not reproducible, so it is"
6811 " likely a hardware or OS problem.\n");
6815 return i
== RETRY_ICE_ATTEMPTS
- 2;
6818 enum attempt_status
{
6819 ATTEMPT_STATUS_FAIL_TO_RUN
,
6820 ATTEMPT_STATUS_SUCCESS
,
6825 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
6826 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
6827 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
6828 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
6829 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
6830 ATTEMPT_STATUS_SUCCESS otherwise. */
6832 static enum attempt_status
6833 run_attempt (const char **new_argv
, const char *out_temp
,
6834 const char *err_temp
, int emit_system_info
, int append
)
6837 if (emit_system_info
)
6839 FILE *file_out
= fopen (err_temp
, "a");
6840 print_configuration (file_out
);
6841 fputs ("\n", file_out
);
6847 struct pex_obj
*pex
;
6849 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
6850 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
6853 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
6855 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
6857 fatal_error (input_location
, "pex_init failed: %m");
6859 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
6860 CONST_CAST2 (char *const *, const char **, &new_argv
[1]), out_temp
,
6865 fatal_error (input_location
, errmsg
);
6869 pfatal_with_name (errmsg
);
6873 if (!pex_get_status (pex
, 1, &exit_status
))
6876 switch (WEXITSTATUS (exit_status
))
6879 status
= ATTEMPT_STATUS_ICE
;
6882 case SUCCESS_EXIT_CODE
:
6883 status
= ATTEMPT_STATUS_SUCCESS
;
6895 /* This routine reads lines from IN file, adds C++ style comments
6896 at the begining of each line and writes result into OUT. */
6899 insert_comments (const char *file_in
, const char *file_out
)
6901 FILE *in
= fopen (file_in
, "rb");
6902 FILE *out
= fopen (file_out
, "wb");
6905 bool add_comment
= true;
6906 while (fgets (line
, sizeof (line
), in
))
6911 add_comment
= strchr (line
, '\n') != NULL
;
6918 /* This routine adds preprocessed source code into the given ERR_FILE.
6919 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
6920 add information in report file. RUN_ATTEMPT should return
6921 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
6924 do_report_bug (const char **new_argv
, const int nargs
,
6925 char **out_file
, char **err_file
)
6928 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
6931 write (fd
, "\n//", 3);
6932 for (i
= 0; i
< nargs
; i
++)
6935 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
6937 write (fd
, "\n\n", 2);
6939 new_argv
[nargs
] = "-E";
6940 new_argv
[nargs
+ 1] = NULL
;
6942 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
6944 if (status
== ATTEMPT_STATUS_SUCCESS
)
6946 fnotice (stderr
, "Preprocessed source stored into %s file,"
6947 " please attach this to your bugreport.\n", *out_file
);
6948 /* Make sure it is not deleted. */
6954 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
6955 containing GCC configuration, backtrace, compiler's command line options
6956 and preprocessed source code. */
6959 try_generate_repro (const char **argv
)
6961 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
6962 const char **new_argv
;
6963 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
6964 char **temp_stdout_files
= &temp_files
[0];
6965 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
6967 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
6970 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
6971 /* Only retry compiler ICEs, not preprocessor ones. */
6972 if (! strcmp (argv
[nargs
], "-E"))
6974 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
6981 /* If the compiler is going to output any time information,
6982 it might varry between invocations. */
6983 else if (! strcmp (argv
[nargs
], "-quiet"))
6985 else if (! strcmp (argv
[nargs
], "-ftime-report"))
6988 if (out_arg
== -1 || !quiet
)
6991 memset (temp_files
, '\0', sizeof (temp_files
));
6992 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
6993 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
6994 new_argv
[nargs
++] = "-frandom-seed=0";
6995 new_argv
[nargs
++] = "-fdump-noaddr";
6996 new_argv
[nargs
] = NULL
;
6997 if (new_argv
[out_arg
][2] == '\0')
6998 new_argv
[out_arg
+ 1] = "-";
7000 new_argv
[out_arg
] = "-o-";
7003 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
7005 int emit_system_info
= 0;
7007 temp_stdout_files
[attempt
] = make_temp_file (".out");
7008 temp_stderr_files
[attempt
] = make_temp_file (".err");
7010 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
7013 emit_system_info
= 1;
7016 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
7017 temp_stderr_files
[attempt
], emit_system_info
,
7020 if (status
!= ATTEMPT_STATUS_ICE
)
7022 fnotice (stderr
, "The bug is not reproducible, so it is"
7023 " likely a hardware or OS problem.\n");
7028 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
7032 /* Insert commented out backtrace into report file. */
7033 char **stderr_commented
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
7034 insert_comments (temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
7037 /* In final attempt we append compiler options and preprocesssed code to last
7038 generated .out file with configuration and backtrace. */
7039 char **err
= &temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1];
7040 do_report_bug (new_argv
, nargs
, stderr_commented
, err
);
7044 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
7047 unlink (temp_stdout_files
[i
]);
7048 free (temp_stdout_files
[i
]);
7052 /* Search for a file named NAME trying various prefixes including the
7053 user's -B prefix and some standard ones.
7054 Return the absolute file name found. If nothing is found, return NAME. */
7057 find_file (const char *name
)
7059 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
7060 return newname
? newname
: name
;
7063 /* Determine whether a directory exists. If LINKER, return 0 for
7064 certain fixed names not needed by the linker. */
7067 is_directory (const char *path1
, bool linker
)
7074 /* Ensure the string ends with "/.". The resulting path will be a
7075 directory even if the given path is a symbolic link. */
7076 len1
= strlen (path1
);
7077 path
= (char *) alloca (3 + len1
);
7078 memcpy (path
, path1
, len1
);
7080 if (!IS_DIR_SEPARATOR (cp
[-1]))
7081 *cp
++ = DIR_SEPARATOR
;
7085 /* Exclude directories that the linker is known to search. */
7087 && IS_DIR_SEPARATOR (path
[0])
7089 && filename_ncmp (path
+ 1, "lib", 3) == 0)
7091 && filename_ncmp (path
+ 1, "usr", 3) == 0
7092 && IS_DIR_SEPARATOR (path
[4])
7093 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
7096 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
7099 /* Set up the various global variables to indicate that we're processing
7100 the input file named FILENAME. */
7103 set_input (const char *filename
)
7107 gcc_input_filename
= filename
;
7108 input_filename_length
= strlen (gcc_input_filename
);
7109 input_basename
= lbasename (gcc_input_filename
);
7111 /* Find a suffix starting with the last period,
7112 and set basename_length to exclude that suffix. */
7113 basename_length
= strlen (input_basename
);
7114 suffixed_basename_length
= basename_length
;
7115 p
= input_basename
+ basename_length
;
7116 while (p
!= input_basename
&& *p
!= '.')
7118 if (*p
== '.' && p
!= input_basename
)
7120 basename_length
= p
- input_basename
;
7121 input_suffix
= p
+ 1;
7126 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
7127 we will need to do a stat on the gcc_input_filename. The
7128 INPUT_STAT_SET signals that the stat is needed. */
7132 /* On fatal signals, delete all the temporary files. */
7135 fatal_signal (int signum
)
7137 signal (signum
, SIG_DFL
);
7138 delete_failure_queue ();
7139 delete_temp_files ();
7140 /* Get the same signal again, this time not handled,
7141 so its normal effect occurs. */
7142 kill (getpid (), signum
);
7145 /* Compare the contents of the two files named CMPFILE[0] and
7146 CMPFILE[1]. Return zero if they're identical, nonzero
7150 compare_files (char *cmpfile
[])
7153 FILE *temp
[2] = { NULL
, NULL
};
7159 void *map
[2] = { NULL
, NULL
};
7161 for (i
= 0; i
< 2; i
++)
7165 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
7167 error ("%s: could not determine length of compare-debug file %s",
7168 gcc_input_filename
, cmpfile
[i
]);
7173 length
[i
] = st
.st_size
;
7176 if (!ret
&& length
[0] != length
[1])
7178 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
7183 for (i
= 0; i
< 2; i
++)
7185 int fd
= open (cmpfile
[i
], O_RDONLY
);
7188 error ("%s: could not open compare-debug file %s",
7189 gcc_input_filename
, cmpfile
[i
]);
7194 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
7197 if (map
[i
] == (void *) MAP_FAILED
)
7206 if (memcmp (map
[0], map
[1], length
[0]) != 0)
7208 error ("%s: -fcompare-debug failure", gcc_input_filename
);
7213 for (i
= 0; i
< 2; i
++)
7215 munmap ((caddr_t
) map
[i
], length
[i
]);
7224 for (i
= 0; i
< 2; i
++)
7226 temp
[i
] = fopen (cmpfile
[i
], "r");
7229 error ("%s: could not open compare-debug file %s",
7230 gcc_input_filename
, cmpfile
[i
]);
7236 if (!ret
&& temp
[0] && temp
[1])
7240 c0
= fgetc (temp
[0]);
7241 c1
= fgetc (temp
[1]);
7245 error ("%s: -fcompare-debug failure",
7246 gcc_input_filename
);
7255 for (i
= 1; i
>= 0; i
--)
7264 driver::driver (bool can_finalize
, bool debug
) :
7265 explicit_link_files (NULL
),
7266 decoded_options (NULL
),
7267 m_option_suggestions (NULL
)
7269 env
.init (can_finalize
, debug
);
7274 XDELETEVEC (explicit_link_files
);
7275 XDELETEVEC (decoded_options
);
7276 if (m_option_suggestions
)
7280 FOR_EACH_VEC_ELT (*m_option_suggestions
, i
, str
)
7282 delete m_option_suggestions
;
7286 /* driver::main is implemented as a series of driver:: method calls. */
7289 driver::main (int argc
, char **argv
)
7293 set_progname (argv
[0]);
7294 expand_at_files (&argc
, &argv
);
7295 decode_argv (argc
, const_cast <const char **> (argv
));
7296 global_initializations ();
7297 build_multilib_strings ();
7299 putenv_COLLECT_GCC (argv
[0]);
7300 maybe_putenv_COLLECT_LTO_WRAPPER ();
7301 maybe_putenv_OFFLOAD_TARGETS ();
7302 handle_unrecognized_options ();
7304 if (!maybe_print_and_exit ())
7307 early_exit
= prepare_infiles ();
7309 return get_exit_code ();
7311 do_spec_on_infiles ();
7312 maybe_run_linker (argv
[0]);
7314 return get_exit_code ();
7317 /* Locate the final component of argv[0] after any leading path, and set
7318 the program name accordingly. */
7321 driver::set_progname (const char *argv0
) const
7323 const char *p
= argv0
+ strlen (argv0
);
7324 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
7328 xmalloc_set_program_name (progname
);
7331 /* Expand any @ files within the command-line args,
7332 setting at_file_supplied if any were expanded. */
7335 driver::expand_at_files (int *argc
, char ***argv
) const
7337 char **old_argv
= *argv
;
7339 expandargv (argc
, argv
);
7341 /* Determine if any expansions were made. */
7342 if (*argv
!= old_argv
)
7343 at_file_supplied
= true;
7346 /* Decode the command-line arguments from argc/argv into the
7347 decoded_options array. */
7350 driver::decode_argv (int argc
, const char **argv
)
7352 /* Register the language-independent parameters. */
7353 global_init_params ();
7356 init_opts_obstack ();
7357 init_options_struct (&global_options
, &global_options_set
);
7359 decode_cmdline_options_to_array (argc
, argv
,
7361 &decoded_options
, &decoded_options_count
);
7364 /* Perform various initializations and setup. */
7367 driver::global_initializations ()
7369 /* Unlock the stdio streams. */
7370 unlock_std_streams ();
7372 gcc_init_libintl ();
7374 diagnostic_initialize (global_dc
, 0);
7375 diagnostic_color_init (global_dc
);
7377 #ifdef GCC_DRIVER_HOST_INITIALIZATION
7378 /* Perform host dependent initialization when needed. */
7379 GCC_DRIVER_HOST_INITIALIZATION
;
7382 if (atexit (delete_temp_files
) != 0)
7383 fatal_error (input_location
, "atexit failed");
7385 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
7386 signal (SIGINT
, fatal_signal
);
7388 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
7389 signal (SIGHUP
, fatal_signal
);
7391 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
7392 signal (SIGTERM
, fatal_signal
);
7394 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
7395 signal (SIGPIPE
, fatal_signal
);
7398 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
7399 receive the signal. A different setting is inheritable */
7400 signal (SIGCHLD
, SIG_DFL
);
7403 /* Parsing and gimplification sometimes need quite large stack.
7404 Increase stack size limits if possible. */
7405 stack_limit_increase (64 * 1024 * 1024);
7407 /* Allocate the argument vector. */
7410 obstack_init (&obstack
);
7413 /* Build multilib_select, et. al from the separate lines that make up each
7414 multilib selection. */
7417 driver::build_multilib_strings () const
7421 const char *const *q
= multilib_raw
;
7424 obstack_init (&multilib_obstack
);
7425 while ((p
= *q
++) != (char *) 0)
7426 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7428 obstack_1grow (&multilib_obstack
, 0);
7429 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
7431 q
= multilib_matches_raw
;
7432 while ((p
= *q
++) != (char *) 0)
7433 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7435 obstack_1grow (&multilib_obstack
, 0);
7436 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
7438 q
= multilib_exclusions_raw
;
7439 while ((p
= *q
++) != (char *) 0)
7440 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7442 obstack_1grow (&multilib_obstack
, 0);
7443 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
7445 q
= multilib_reuse_raw
;
7446 while ((p
= *q
++) != (char *) 0)
7447 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7449 obstack_1grow (&multilib_obstack
, 0);
7450 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
7453 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
7456 obstack_1grow (&multilib_obstack
, ' ');
7457 obstack_grow (&multilib_obstack
,
7458 multilib_defaults_raw
[i
],
7459 strlen (multilib_defaults_raw
[i
]));
7463 obstack_1grow (&multilib_obstack
, 0);
7464 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
7468 /* Set up the spec-handling machinery. */
7471 driver::set_up_specs () const
7473 const char *spec_machine_suffix
;
7477 #ifdef INIT_ENVIRONMENT
7478 /* Set up any other necessary machine specific environment variables. */
7479 xputenv (INIT_ENVIRONMENT
);
7482 /* Make a table of what switches there are (switches, n_switches).
7483 Make a table of specified input files (infiles, n_infiles).
7484 Decode switches that are handled locally. */
7486 process_command (decoded_options_count
, decoded_options
);
7488 /* Initialize the vector of specs to just the default.
7489 This means one element containing 0s, as a terminator. */
7491 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
7492 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
7493 n_compilers
= n_default_compilers
;
7495 /* Read specs from a file if there is one. */
7497 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
7498 accel_dir_suffix
, dir_separator_str
, NULL
);
7499 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
7501 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
7502 /* Read the specs file unless it is a default one. */
7503 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
7504 read_specs (specs_file
, true, false);
7508 #ifdef ACCEL_COMPILER
7509 spec_machine_suffix
= machine_suffix
;
7511 spec_machine_suffix
= just_machine_suffix
;
7514 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
7515 for any override of as, ld and libraries. */
7516 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
7517 + strlen (spec_machine_suffix
) + sizeof ("specs"));
7518 strcpy (specs_file
, standard_exec_prefix
);
7519 strcat (specs_file
, spec_machine_suffix
);
7520 strcat (specs_file
, "specs");
7521 if (access (specs_file
, R_OK
) == 0)
7522 read_specs (specs_file
, true, false);
7524 /* Process any configure-time defaults specified for the command line
7525 options, via OPTION_DEFAULT_SPECS. */
7526 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
7527 do_option_spec (option_default_specs
[i
].name
,
7528 option_default_specs
[i
].spec
);
7530 /* Process DRIVER_SELF_SPECS, adding any new options to the end
7531 of the command line. */
7533 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
7534 do_self_spec (driver_self_specs
[i
]);
7536 /* If not cross-compiling, look for executables in the standard
7538 if (*cross_compile
== '0')
7540 if (*md_exec_prefix
)
7542 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
7543 PREFIX_PRIORITY_LAST
, 0, 0);
7547 /* Process sysroot_suffix_spec. */
7548 if (*sysroot_suffix_spec
!= 0
7549 && !no_sysroot_suffix
7550 && do_spec_2 (sysroot_suffix_spec
) == 0)
7552 if (argbuf
.length () > 1)
7553 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
7554 else if (argbuf
.length () == 1)
7555 target_sysroot_suffix
= xstrdup (argbuf
.last ());
7558 #ifdef HAVE_LD_SYSROOT
7559 /* Pass the --sysroot option to the linker, if it supports that. If
7560 there is a sysroot_suffix_spec, it has already been processed by
7561 this point, so target_system_root really is the system root we
7563 if (target_system_root
)
7565 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7566 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
7567 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
7571 /* Process sysroot_hdrs_suffix_spec. */
7572 if (*sysroot_hdrs_suffix_spec
!= 0
7573 && !no_sysroot_suffix
7574 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
7576 if (argbuf
.length () > 1)
7577 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7578 else if (argbuf
.length () == 1)
7579 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
7582 /* Look for startfiles in the standard places. */
7583 if (*startfile_prefix_spec
!= 0
7584 && do_spec_2 (startfile_prefix_spec
) == 0
7585 && do_spec_1 (" ", 0, NULL
) == 0)
7589 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
7590 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
7591 PREFIX_PRIORITY_LAST
, 0, 1);
7593 /* We should eventually get rid of all these and stick to
7594 startfile_prefix_spec exclusively. */
7595 else if (*cross_compile
== '0' || target_system_root
)
7597 if (*md_startfile_prefix
)
7598 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7599 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7601 if (*md_startfile_prefix_1
)
7602 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7603 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7605 /* If standard_startfile_prefix is relative, base it on
7606 standard_exec_prefix. This lets us move the installed tree
7607 as a unit. If GCC_EXEC_PREFIX is defined, base
7608 standard_startfile_prefix on that as well.
7610 If the prefix is relative, only search it for native compilers;
7611 otherwise we will search a directory containing host libraries. */
7612 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7613 add_sysrooted_prefix (&startfile_prefixes
,
7614 standard_startfile_prefix
, "BINUTILS",
7615 PREFIX_PRIORITY_LAST
, 0, 1);
7616 else if (*cross_compile
== '0')
7618 add_prefix (&startfile_prefixes
,
7619 concat (gcc_exec_prefix
7620 ? gcc_exec_prefix
: standard_exec_prefix
,
7622 standard_startfile_prefix
, NULL
),
7623 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7626 /* Sysrooted prefixes are relocated because target_system_root is
7627 also relocated by gcc_exec_prefix. */
7628 if (*standard_startfile_prefix_1
)
7629 add_sysrooted_prefix (&startfile_prefixes
,
7630 standard_startfile_prefix_1
, "BINUTILS",
7631 PREFIX_PRIORITY_LAST
, 0, 1);
7632 if (*standard_startfile_prefix_2
)
7633 add_sysrooted_prefix (&startfile_prefixes
,
7634 standard_startfile_prefix_2
, "BINUTILS",
7635 PREFIX_PRIORITY_LAST
, 0, 1);
7638 /* Process any user specified specs in the order given on the command
7640 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7642 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7644 read_specs (filename
? filename
: uptr
->filename
, false, true);
7647 /* Process any user self specs. */
7649 struct spec_list
*sl
;
7650 for (sl
= specs
; sl
; sl
= sl
->next
)
7651 if (sl
->name_len
== sizeof "self_spec" - 1
7652 && !strcmp (sl
->name
, "self_spec"))
7653 do_self_spec (*sl
->ptr_spec
);
7658 enum save_temps save
;
7660 if (!compare_debug_second
)
7662 n_switches_debug_check
[1] = n_switches
;
7663 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7664 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
7667 do_self_spec ("%:compare-debug-self-opt()");
7668 n_switches_debug_check
[0] = n_switches
;
7669 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
7670 switches_debug_check
[0] = switches
;
7672 n_switches
= n_switches_debug_check
[1];
7673 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7674 switches
= switches_debug_check
[1];
7677 /* Avoid crash when computing %j in this early. */
7678 save
= save_temps_flag
;
7679 save_temps_flag
= SAVE_TEMPS_NONE
;
7681 compare_debug
= -compare_debug
;
7682 do_self_spec ("%:compare-debug-self-opt()");
7684 save_temps_flag
= save
;
7686 if (!compare_debug_second
)
7688 n_switches_debug_check
[1] = n_switches
;
7689 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7690 switches_debug_check
[1] = switches
;
7691 compare_debug
= -compare_debug
;
7692 n_switches
= n_switches_debug_check
[0];
7693 n_switches_alloc
= n_switches_debug_check
[0];
7694 switches
= switches_debug_check
[0];
7699 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7700 if (gcc_exec_prefix
)
7701 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
7702 dir_separator_str
, spec_version
,
7703 accel_dir_suffix
, dir_separator_str
, NULL
);
7705 /* Now we have the specs.
7706 Set the `valid' bits for switches that match anything in any spec. */
7708 validate_all_switches ();
7710 /* Now that we have the switches and the specs, set
7711 the subdirectory based on the options. */
7712 set_multilib_dir ();
7715 /* Set up to remember the pathname of gcc and any options
7716 needed for collect. We use argv[0] instead of progname because
7717 we need the complete pathname. */
7720 driver::putenv_COLLECT_GCC (const char *argv0
) const
7722 obstack_init (&collect_obstack
);
7723 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7724 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
7725 xputenv (XOBFINISH (&collect_obstack
, char *));
7728 /* Set up to remember the pathname of the lto wrapper. */
7731 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
7733 char *lto_wrapper_file
;
7736 lto_wrapper_file
= NULL
;
7738 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
7740 if (lto_wrapper_file
)
7742 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
7743 lto_wrapper_spec
= lto_wrapper_file
;
7744 obstack_init (&collect_obstack
);
7745 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7746 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7747 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7748 strlen (lto_wrapper_spec
) + 1);
7749 xputenv (XOBFINISH (&collect_obstack
, char *));
7754 /* Set up to remember the names of offload targets. */
7757 driver::maybe_putenv_OFFLOAD_TARGETS () const
7759 if (offload_targets
&& offload_targets
[0] != '\0')
7761 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
7762 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
7763 obstack_grow (&collect_obstack
, offload_targets
,
7764 strlen (offload_targets
) + 1);
7765 xputenv (XOBFINISH (&collect_obstack
, char *));
7768 free (offload_targets
);
7769 offload_targets
= NULL
;
7772 /* Helper function for driver::suggest_option. Populate
7773 m_option_suggestions with candidate strings for misspelled options.
7774 The strings will be freed by the driver's dtor. */
7777 driver::build_option_suggestions (void)
7779 gcc_assert (m_option_suggestions
== NULL
);
7780 m_option_suggestions
= new auto_vec
<char *> ();
7782 /* We build a vec of m_option_suggestions, using add_misspelling_candidates
7783 to add copies of strings, without a leading dash. */
7785 for (unsigned int i
= 0; i
< cl_options_count
; i
++)
7787 const struct cl_option
*option
= &cl_options
[i
];
7788 const char *opt_text
= option
->opt_text
;
7792 if (option
->var_type
== CLVC_ENUM
)
7794 const struct cl_enum
*e
= &cl_enums
[option
->var_enum
];
7795 for (unsigned j
= 0; e
->values
[j
].arg
!= NULL
; j
++)
7797 char *with_arg
= concat (opt_text
, e
->values
[j
].arg
, NULL
);
7798 add_misspelling_candidates (m_option_suggestions
, option
,
7804 add_misspelling_candidates (m_option_suggestions
, option
,
7808 case OPT_fsanitize_
:
7809 case OPT_fsanitize_recover_
:
7810 /* -fsanitize= and -fsanitize-recover= can take
7811 a comma-separated list of arguments. Given that combinations
7812 are supported, we can't add all potential candidates to the
7813 vec, but if we at least add them individually without commas,
7814 we should do a better job e.g. correcting
7817 "-fsanitize=address"
7818 rather than to "-Wframe-address" (PR driver/69265). */
7820 for (int j
= 0; sanitizer_opts
[j
].name
!= NULL
; ++j
)
7822 struct cl_option optb
;
7823 /* -fsanitize=all is not valid, only -fno-sanitize=all.
7824 So don't register the positive misspelling candidates
7826 if (sanitizer_opts
[j
].flag
== ~0U && i
== OPT_fsanitize_
)
7829 optb
.opt_text
= opt_text
= "-fno-sanitize=";
7830 optb
.cl_reject_negative
= true;
7833 /* Get one arg at a time e.g. "-fsanitize=address". */
7834 char *with_arg
= concat (opt_text
,
7835 sanitizer_opts
[j
].name
,
7837 /* Add with_arg and all of its variant spellings e.g.
7838 "-fno-sanitize=address" to candidates (albeit without
7840 add_misspelling_candidates (m_option_suggestions
, option
,
7850 /* Helper function for driver::handle_unrecognized_options.
7852 Given an unrecognized option BAD_OPT (without the leading dash),
7853 locate the closest reasonable matching option (again, without the
7854 leading dash), or NULL.
7856 The returned string is owned by the driver instance. */
7859 driver::suggest_option (const char *bad_opt
)
7861 /* Lazily populate m_option_suggestions. */
7862 if (!m_option_suggestions
)
7863 build_option_suggestions ();
7864 gcc_assert (m_option_suggestions
);
7866 /* "m_option_suggestions" is now populated. Use it. */
7867 return find_closest_string
7869 (auto_vec
<const char *> *) m_option_suggestions
);
7872 /* Reject switches that no pass was interested in. */
7875 driver::handle_unrecognized_options ()
7877 for (size_t i
= 0; (int) i
< n_switches
; i
++)
7878 if (! switches
[i
].validated
)
7880 const char *hint
= suggest_option (switches
[i
].part1
);
7882 error ("unrecognized command line option %<-%s%>;"
7883 " did you mean %<-%s%>?",
7884 switches
[i
].part1
, hint
);
7886 error ("unrecognized command line option %<-%s%>",
7891 /* Handle the various -print-* options, returning 0 if the driver
7892 should exit, or nonzero if the driver should continue. */
7895 driver::maybe_print_and_exit () const
7897 if (print_search_dirs
)
7899 printf (_("install: %s%s\n"),
7900 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7901 gcc_exec_prefix
? "" : machine_suffix
);
7902 printf (_("programs: %s\n"),
7903 build_search_list (&exec_prefixes
, "", false, false));
7904 printf (_("libraries: %s\n"),
7905 build_search_list (&startfile_prefixes
, "", false, true));
7909 if (print_file_name
)
7911 printf ("%s\n", find_file (print_file_name
));
7915 if (print_prog_name
)
7917 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
7919 /* Append USE_LD to the default linker. */
7920 #ifdef DEFAULT_LINKER
7922 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
7923 int len
= (sizeof (DEFAULT_LINKER
)
7924 - sizeof (HOST_EXECUTABLE_SUFFIX
));
7928 char *default_linker
= xstrdup (DEFAULT_LINKER
);
7929 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
7930 HOST_EXECUTABLE_SUFFIX. */
7931 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
7933 default_linker
[len
] = '\0';
7934 ld
= concat (default_linker
, use_ld
,
7935 HOST_EXECUTABLE_SUFFIX
, NULL
);
7940 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
7941 if (access (ld
, X_OK
) == 0)
7943 printf ("%s\n", ld
);
7947 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
7949 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7950 printf ("%s\n", (newname
? newname
: print_prog_name
));
7954 if (print_multi_lib
)
7956 print_multilib_info ();
7960 if (print_multi_directory
)
7962 if (multilib_dir
== NULL
)
7965 printf ("%s\n", multilib_dir
);
7969 if (print_multiarch
)
7971 if (multiarch_dir
== NULL
)
7974 printf ("%s\n", multiarch_dir
);
7980 if (target_system_root
)
7982 if (target_sysroot_suffix
)
7983 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7985 printf ("%s\n", target_system_root
);
7990 if (print_multi_os_directory
)
7992 if (multilib_os_dir
== NULL
)
7995 printf ("%s\n", multilib_os_dir
);
7999 if (print_sysroot_headers_suffix
)
8001 if (*sysroot_hdrs_suffix_spec
)
8003 printf("%s\n", (target_sysroot_hdrs_suffix
8004 ? target_sysroot_hdrs_suffix
8009 /* The error status indicates that only one set of fixed
8010 headers should be built. */
8011 fatal_error (input_location
,
8012 "not configured with sysroot headers suffix");
8015 if (print_help_list
)
8021 printf (_("\nFor bug reporting instructions, please see:\n"));
8022 printf ("%s.\n", bug_report_url
);
8027 /* We do not exit here. Instead we have created a fake input file
8028 called 'help-dummy' which needs to be compiled, and we pass this
8029 on the various sub-processes, along with the --help switch.
8030 Ensure their output appears after ours. */
8031 fputc ('\n', stdout
);
8037 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
8039 printf ("Copyright %s 2018 Free Software Foundation, Inc.\n",
8041 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
8042 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
8047 /* We do not exit here. We use the same mechanism of --help to print
8048 the version of the sub-processes. */
8049 fputc ('\n', stdout
);
8055 print_configuration (stderr
);
8063 /* Figure out what to do with each input file.
8064 Return true if we need to exit early from "main", false otherwise. */
8067 driver::prepare_infiles ()
8070 int lang_n_infiles
= 0;
8072 if (n_infiles
== added_libraries
)
8073 fatal_error (input_location
, "no input files");
8076 /* Early exit needed from main. */
8079 /* Make a place to record the compiler output file names
8080 that correspond to the input files. */
8083 i
+= lang_specific_extra_outfiles
;
8084 outfiles
= XCNEWVEC (const char *, i
);
8086 /* Record which files were specified explicitly as link input. */
8088 explicit_link_files
= XCNEWVEC (char, n_infiles
);
8090 combine_inputs
= have_o
|| flag_wpa
;
8092 for (i
= 0; (int) i
< n_infiles
; i
++)
8094 const char *name
= infiles
[i
].name
;
8095 struct compiler
*compiler
= lookup_compiler (name
,
8097 infiles
[i
].language
);
8099 if (compiler
&& !(compiler
->combinable
))
8100 combine_inputs
= false;
8102 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
8103 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
8104 infiles
[i
].incompiler
= compiler
;
8108 input_file_compiler
= compiler
;
8109 infiles
[i
].incompiler
= compiler
;
8113 /* Since there is no compiler for this input file, assume it is a
8115 explicit_link_files
[i
] = 1;
8116 infiles
[i
].incompiler
= NULL
;
8118 infiles
[i
].compiled
= false;
8119 infiles
[i
].preprocessed
= false;
8122 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
8123 fatal_error (input_location
,
8124 "cannot specify -o with -c, -S or -E with multiple files");
8126 /* No early exit needed from main; we can continue. */
8130 /* Run the spec machinery on each input file. */
8133 driver::do_spec_on_infiles () const
8137 for (i
= 0; (int) i
< n_infiles
; i
++)
8139 int this_file_error
= 0;
8141 /* Tell do_spec what to substitute for %i. */
8143 input_file_number
= i
;
8144 set_input (infiles
[i
].name
);
8146 if (infiles
[i
].compiled
)
8149 /* Use the same thing in %o, unless cp->spec says otherwise. */
8151 outfiles
[i
] = gcc_input_filename
;
8153 /* Figure out which compiler from the file's suffix. */
8156 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
8157 infiles
[i
].language
);
8159 if (input_file_compiler
)
8161 /* Ok, we found an applicable compiler. Run its spec. */
8163 if (input_file_compiler
->spec
[0] == '#')
8165 error ("%s: %s compiler not installed on this system",
8166 gcc_input_filename
, &input_file_compiler
->spec
[1]);
8167 this_file_error
= 1;
8175 free (debug_check_temp_file
[0]);
8176 debug_check_temp_file
[0] = NULL
;
8178 free (debug_check_temp_file
[1]);
8179 debug_check_temp_file
[1] = NULL
;
8182 value
= do_spec (input_file_compiler
->spec
);
8183 infiles
[i
].compiled
= true;
8185 this_file_error
= 1;
8186 else if (compare_debug
&& debug_check_temp_file
[0])
8189 inform (UNKNOWN_LOCATION
,
8190 "recompiling with -fcompare-debug");
8192 compare_debug
= -compare_debug
;
8193 n_switches
= n_switches_debug_check
[1];
8194 n_switches_alloc
= n_switches_alloc_debug_check
[1];
8195 switches
= switches_debug_check
[1];
8197 value
= do_spec (input_file_compiler
->spec
);
8199 compare_debug
= -compare_debug
;
8200 n_switches
= n_switches_debug_check
[0];
8201 n_switches_alloc
= n_switches_alloc_debug_check
[0];
8202 switches
= switches_debug_check
[0];
8206 error ("during -fcompare-debug recompilation");
8207 this_file_error
= 1;
8210 gcc_assert (debug_check_temp_file
[1]
8211 && filename_cmp (debug_check_temp_file
[0],
8212 debug_check_temp_file
[1]));
8215 inform (UNKNOWN_LOCATION
, "comparing final insns dumps");
8217 if (compare_files (debug_check_temp_file
))
8218 this_file_error
= 1;
8223 free (debug_check_temp_file
[0]);
8224 debug_check_temp_file
[0] = NULL
;
8226 free (debug_check_temp_file
[1]);
8227 debug_check_temp_file
[1] = NULL
;
8232 /* If this file's name does not contain a recognized suffix,
8233 record it as explicit linker input. */
8236 explicit_link_files
[i
] = 1;
8238 /* Clear the delete-on-failure queue, deleting the files in it
8239 if this compilation failed. */
8241 if (this_file_error
)
8243 delete_failure_queue ();
8246 /* If this compilation succeeded, don't delete those files later. */
8247 clear_failure_queue ();
8250 /* Reset the input file name to the first compile/object file name, for use
8251 with %b in LINK_SPEC. We use the first input file that we can find
8252 a compiler to compile it instead of using infiles.language since for
8253 languages other than C we use aliases that we then lookup later. */
8258 for (i
= 0; i
< n_infiles
; i
++)
8259 if (infiles
[i
].incompiler
8260 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
8262 set_input (infiles
[i
].name
);
8269 /* Make sure INPUT_FILE_NUMBER points to first available open
8271 input_file_number
= n_infiles
;
8272 if (lang_specific_pre_link ())
8277 /* If we have to run the linker, do it now. */
8280 driver::maybe_run_linker (const char *argv0
) const
8283 int linker_was_run
= 0;
8284 int num_linker_inputs
;
8286 /* Determine if there are any linker input files. */
8287 num_linker_inputs
= 0;
8288 for (i
= 0; (int) i
< n_infiles
; i
++)
8289 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
8290 num_linker_inputs
++;
8292 /* Run ld to link all the compiler output files. */
8294 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
8296 int tmp
= execution_count
;
8300 #if HAVE_LTO_PLUGIN > 0
8301 #if HAVE_LTO_PLUGIN == 2
8302 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
8304 const char *fuse_linker_plugin
= "fuse-linker-plugin";
8308 /* We'll use ld if we can't find collect2. */
8309 if (! strcmp (linker_name_spec
, "collect2"))
8311 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
8313 linker_name_spec
= "ld";
8316 #if HAVE_LTO_PLUGIN > 0
8317 #if HAVE_LTO_PLUGIN == 2
8318 if (!switch_matches (fno_use_linker_plugin
,
8319 fno_use_linker_plugin
8320 + strlen (fno_use_linker_plugin
), 0))
8322 if (switch_matches (fuse_linker_plugin
,
8324 + strlen (fuse_linker_plugin
), 0))
8327 char *temp_spec
= find_a_file (&exec_prefixes
,
8328 LTOPLUGINSONAME
, R_OK
,
8331 fatal_error (input_location
,
8332 "-fuse-linker-plugin, but %s not found",
8334 linker_plugin_file_spec
= convert_white_space (temp_spec
);
8337 lto_gcc_spec
= argv0
;
8340 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
8342 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
8343 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
8345 if (print_subprocess_help
== 1)
8347 printf (_("\nLinker options\n==============\n\n"));
8348 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
8349 " to the linker.\n\n"));
8352 int value
= do_spec (link_command_spec
);
8355 linker_was_run
= (tmp
!= execution_count
);
8358 /* If options said don't run linker,
8359 complain about input files to be given to the linker. */
8361 if (! linker_was_run
&& !seen_error ())
8362 for (i
= 0; (int) i
< n_infiles
; i
++)
8363 if (explicit_link_files
[i
]
8364 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
8365 warning (0, "%s: linker input file unused because linking not done",
8369 /* The end of "main". */
8372 driver::final_actions () const
8374 /* Delete some or all of the temporary files we made. */
8377 delete_failure_queue ();
8378 delete_temp_files ();
8380 if (print_help_list
)
8382 printf (("\nFor bug reporting instructions, please see:\n"));
8383 printf ("%s\n", bug_report_url
);
8387 /* Determine what the exit code of the driver should be. */
8390 driver::get_exit_code () const
8392 return (signal_count
!= 0 ? 2
8393 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
8397 /* Find the proper compilation spec for the file name NAME,
8398 whose length is LENGTH. LANGUAGE is the specified language,
8399 or 0 if this file is to be passed to the linker. */
8401 static struct compiler
*
8402 lookup_compiler (const char *name
, size_t length
, const char *language
)
8404 struct compiler
*cp
;
8406 /* If this was specified by the user to be a linker input, indicate that. */
8407 if (language
!= 0 && language
[0] == '*')
8410 /* Otherwise, look for the language, if one is spec'd. */
8413 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8414 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
8416 if (name
!= NULL
&& strcmp (name
, "-") == 0
8417 && (strcmp (cp
->suffix
, "@c-header") == 0
8418 || strcmp (cp
->suffix
, "@c++-header") == 0)
8420 fatal_error (input_location
,
8421 "cannot use %<-%> as input filename for a "
8422 "precompiled header");
8427 error ("language %s not recognized", language
);
8431 /* Look for a suffix. */
8432 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8434 if (/* The suffix `-' matches only the file name `-'. */
8435 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8436 || (strlen (cp
->suffix
) < length
8437 /* See if the suffix matches the end of NAME. */
8438 && !strcmp (cp
->suffix
,
8439 name
+ length
- strlen (cp
->suffix
))
8444 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
8445 /* Look again, but case-insensitively this time. */
8447 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8449 if (/* The suffix `-' matches only the file name `-'. */
8450 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8451 || (strlen (cp
->suffix
) < length
8452 /* See if the suffix matches the end of NAME. */
8453 && ((!strcmp (cp
->suffix
,
8454 name
+ length
- strlen (cp
->suffix
))
8455 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
8456 && !strcasecmp (cp
->suffix
,
8457 name
+ length
- strlen (cp
->suffix
)))
8463 if (cp
>= compilers
)
8465 if (cp
->spec
[0] != '@')
8466 /* A non-alias entry: return it. */
8469 /* An alias entry maps a suffix to a language.
8470 Search for the language; pass 0 for NAME and LENGTH
8471 to avoid infinite recursion if language not found. */
8472 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
8478 save_string (const char *s
, int len
)
8480 char *result
= XNEWVEC (char, len
+ 1);
8482 gcc_checking_assert (strlen (s
) >= (unsigned int) len
);
8483 memcpy (result
, s
, len
);
8489 pfatal_with_name (const char *name
)
8491 perror_with_name (name
);
8492 delete_temp_files ();
8497 perror_with_name (const char *name
)
8499 error ("%s: %m", name
);
8503 validate_switches_from_spec (const char *spec
, bool user
)
8505 const char *p
= spec
;
8508 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
8509 /* We have a switch spec. */
8510 p
= validate_switches (p
+ 1, user
);
8514 validate_all_switches (void)
8516 struct compiler
*comp
;
8517 struct spec_list
*spec
;
8519 for (comp
= compilers
; comp
->spec
; comp
++)
8520 validate_switches_from_spec (comp
->spec
, false);
8522 /* Look through the linked list of specs read from the specs file. */
8523 for (spec
= specs
; spec
; spec
= spec
->next
)
8524 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
8526 validate_switches_from_spec (link_command_spec
, false);
8529 /* Look at the switch-name that comes after START
8530 and mark as valid all supplied switches that match it. */
8533 validate_switches (const char *start
, bool user_spec
)
8535 const char *p
= start
;
8539 bool suffix
= false;
8540 bool starred
= false;
8542 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
8551 if (*p
== '.' || *p
== ',')
8555 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
8556 || *p
== ',' || *p
== '.' || *p
== '@')
8561 starred
= true, p
++;
8567 /* Mark all matching switches as valid. */
8568 for (i
= 0; i
< n_switches
; i
++)
8569 if (!strncmp (switches
[i
].part1
, atom
, len
)
8570 && (starred
|| switches
[i
].part1
[len
] == '\0')
8571 && (switches
[i
].known
|| user_spec
))
8572 switches
[i
].validated
= true;
8576 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
8579 if (*p
&& p
[-1] == ':')
8581 while (*p
&& *p
!= ';' && *p
!= '}')
8586 if (*p
== '{' || *p
== '<')
8587 p
= validate_switches (p
+1, user_spec
);
8588 else if (p
[0] == 'W' && p
[1] == '{')
8589 p
= validate_switches (p
+2, user_spec
);
8596 if (*p
&& p
[-1] == ';')
8610 static struct mdswitchstr
*mdswitches
;
8611 static int n_mdswitches
;
8613 /* Check whether a particular argument was used. The first time we
8614 canonicalize the switches to keep only the ones we care about. */
8619 int operator () (const char *p
, int len
);
8626 const char *replace
;
8631 mswitchstr
*mswitches
;
8636 used_arg_t used_arg
;
8639 used_arg_t::operator () (const char *p
, int len
)
8645 struct mswitchstr
*matches
;
8649 /* Break multilib_matches into the component strings of string
8650 and replacement string. */
8651 for (q
= multilib_matches
; *q
!= '\0'; q
++)
8656 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
8658 q
= multilib_matches
;
8667 fatal_error (input_location
, "multilib spec %qs is invalid",
8672 matches
[i
].len
= q
- matches
[i
].str
;
8674 matches
[i
].replace
= ++q
;
8675 while (*q
!= ';' && *q
!= '\0')
8678 goto invalid_matches
;
8681 matches
[i
].rep_len
= q
- matches
[i
].replace
;
8687 /* Now build a list of the replacement string for switches that we care
8688 about. Make sure we allocate at least one entry. This prevents
8689 xmalloc from calling fatal, and prevents us from re-executing this
8692 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
8693 for (i
= 0; i
< n_switches
; i
++)
8694 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
8696 int xlen
= strlen (switches
[i
].part1
);
8697 for (j
= 0; j
< cnt
; j
++)
8698 if (xlen
== matches
[j
].len
8699 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
8701 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
8702 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
8703 mswitches
[n_mswitches
].replace
= (char *) 0;
8704 mswitches
[n_mswitches
].rep_len
= 0;
8710 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
8711 on the command line nor any options mutually incompatible with
8713 for (i
= 0; i
< n_mdswitches
; i
++)
8717 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
8723 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
8724 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
8726 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8733 if (*q
!= ' ' && *q
!= '\0')
8735 while (*r
!= ' ' && *r
!= '\0')
8738 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8741 if (used_arg (r
, q
- r
))
8746 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
8747 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
8748 mswitches
[n_mswitches
].replace
= (char *) 0;
8749 mswitches
[n_mswitches
].rep_len
= 0;
8762 for (i
= 0; i
< n_mswitches
; i
++)
8763 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8769 void used_arg_t::finalize ()
8771 XDELETEVEC (mswitches
);
8778 default_arg (const char *p
, int len
)
8782 for (i
= 0; i
< n_mdswitches
; i
++)
8783 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8789 /* Work out the subdirectory to use based on the options. The format of
8790 multilib_select is a list of elements. Each element is a subdirectory
8791 name followed by a list of options followed by a semicolon. The format
8792 of multilib_exclusions is the same, but without the preceding
8793 directory. First gcc will check the exclusions, if none of the options
8794 beginning with an exclamation point are present, and all of the other
8795 options are present, then we will ignore this completely. Passing
8796 that, gcc will consider each multilib_select in turn using the same
8797 rules for matching the options. If a match is found, that subdirectory
8799 A subdirectory name is optionally followed by a colon and the corresponding
8803 set_multilib_dir (void)
8806 unsigned int this_path_len
;
8807 const char *this_path
, *this_arg
;
8808 const char *start
, *end
;
8810 int ok
, ndfltok
, first
;
8813 start
= multilib_defaults
;
8814 while (*start
== ' ' || *start
== '\t')
8816 while (*start
!= '\0')
8819 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8821 while (*start
== ' ' || *start
== '\t')
8829 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8830 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8832 while (*start
== ' ' || *start
== '\t')
8838 for (end
= start
+ 1;
8839 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8842 obstack_grow (&multilib_obstack
, start
, end
- start
);
8843 obstack_1grow (&multilib_obstack
, 0);
8844 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8845 mdswitches
[i
++].len
= end
- start
;
8852 p
= multilib_exclusions
;
8855 /* Ignore newlines. */
8862 /* Check the arguments. */
8869 fatal_error (input_location
, "multilib exclusions %qs is invalid",
8870 multilib_exclusions
);
8880 while (*p
!= ' ' && *p
!= ';')
8883 goto invalid_exclusions
;
8887 if (*this_arg
!= '!')
8895 ok
= used_arg (this_arg
, p
- this_arg
);
8910 p
= multilib_select
;
8912 /* Append multilib reuse rules if any. With those rules, we can reuse
8913 one multilib for certain different options sets. */
8914 if (strlen (multilib_reuse
) > 0)
8915 p
= concat (p
, multilib_reuse
, NULL
);
8919 /* Ignore newlines. */
8926 /* Get the initial path. */
8933 fatal_error (input_location
, "multilib select %qs %qs is invalid",
8934 multilib_select
, multilib_reuse
);
8938 this_path_len
= p
- this_path
;
8940 /* Check the arguments. */
8947 goto invalid_select
;
8956 while (*p
!= ' ' && *p
!= ';')
8959 goto invalid_select
;
8963 if (*this_arg
!= '!')
8971 /* If this is a default argument, we can just ignore it.
8972 This is true even if this_arg begins with '!'. Beginning
8973 with '!' does not mean that this argument is necessarily
8974 inappropriate for this library: it merely means that
8975 there is a more specific library which uses this
8976 argument. If this argument is a default, we need not
8977 consider that more specific library. */
8978 ok
= used_arg (this_arg
, p
- this_arg
);
8985 if (default_arg (this_arg
, p
- this_arg
))
8994 if (this_path_len
!= 1
8995 || this_path
[0] != '.')
8997 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
9000 strncpy (new_multilib_dir
, this_path
, this_path_len
);
9001 new_multilib_dir
[this_path_len
] = '\0';
9002 q
= strchr (new_multilib_dir
, ':');
9005 multilib_dir
= new_multilib_dir
;
9012 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
9014 while (q
< end
&& *q
!= ':')
9018 const char *q2
= q
+ 1, *ml_end
= end
;
9019 char *new_multilib_os_dir
;
9021 while (q2
< end
&& *q2
!= ':')
9025 if (ml_end
- q
== 1)
9026 multilib_os_dir
= xstrdup (".");
9029 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
9030 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
9031 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
9032 multilib_os_dir
= new_multilib_os_dir
;
9035 if (q2
< end
&& *q2
== ':')
9037 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
9038 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
9039 new_multiarch_dir
[end
- q2
- 1] = '\0';
9040 multiarch_dir
= new_multiarch_dir
;
9049 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
9050 && strcmp (multilib_os_dir
, ".") == 0)
9052 free (CONST_CAST (char *, multilib_os_dir
));
9053 multilib_os_dir
= NULL
;
9055 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
9056 multilib_os_dir
= multilib_dir
;
9059 /* Print out the multiple library subdirectory selection
9060 information. This prints out a series of lines. Each line looks
9061 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
9062 required. Only the desired options are printed out, the negative
9063 matches. The options are print without a leading dash. There are
9064 no spaces to make it easy to use the information in the shell.
9065 Each subdirectory is printed only once. This assumes the ordering
9066 generated by the genmultilib script. Also, we leave out ones that match
9070 print_multilib_info (void)
9072 const char *p
= multilib_select
;
9073 const char *last_path
= 0, *this_path
;
9075 unsigned int last_path_len
= 0;
9080 /* Ignore newlines. */
9087 /* Get the initial path. */
9094 fatal_error (input_location
,
9095 "multilib select %qs is invalid", multilib_select
);
9101 /* When --disable-multilib was used but target defines
9102 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
9103 with .:: for multiarch configurations) are there just to find
9104 multilib_os_dir, so skip them from output. */
9105 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
9108 /* Check for matches with the multilib_exclusions. We don't bother
9109 with the '!' in either list. If any of the exclusion rules match
9110 all of its options with the select rule, we skip it. */
9112 const char *e
= multilib_exclusions
;
9113 const char *this_arg
;
9118 /* Ignore newlines. */
9125 /* Check the arguments. */
9134 fatal_error (input_location
,
9135 "multilib exclusion %qs is invalid",
9136 multilib_exclusions
);
9147 while (*e
!= ' ' && *e
!= ';')
9150 goto invalid_exclusion
;
9158 int len
= e
- this_arg
;
9161 goto invalid_select
;
9165 while (*q
!= ' ' && *q
!= ';')
9168 goto invalid_select
;
9172 if (! strncmp (arg
, this_arg
,
9173 (len
< q
- arg
) ? q
- arg
: len
)
9174 || default_arg (this_arg
, e
- this_arg
))
9204 /* If this is a duplicate, skip it. */
9205 skip
= (last_path
!= 0
9206 && (unsigned int) (p
- this_path
) == last_path_len
9207 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
9209 last_path
= this_path
;
9210 last_path_len
= p
- this_path
;
9213 /* If this directory requires any default arguments, we can skip
9214 it. We will already have printed a directory identical to
9215 this one which does not require that default argument. */
9226 goto invalid_select
;
9233 while (*q
!= ' ' && *q
!= ';')
9236 goto invalid_select
;
9241 && default_arg (arg
, q
- arg
))
9256 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
9267 goto invalid_select
;
9275 use_arg
= *p
!= '!';
9280 while (*p
!= ' ' && *p
!= ';')
9283 goto invalid_select
;
9295 /* If there are extra options, print them now. */
9296 if (multilib_extra
&& *multilib_extra
)
9298 int print_at
= TRUE
;
9301 for (q
= multilib_extra
; *q
!= '\0'; q
++)
9322 /* getenv built-in spec function.
9324 Returns the value of the environment variable given by its first argument,
9325 concatenated with the second argument. If the variable is not defined, a
9326 fatal error is issued unless such undefs are internally allowed, in which
9327 case the variable name is used as the variable value. */
9330 getenv_spec_function (int argc
, const char **argv
)
9333 const char *varname
;
9343 value
= env
.get (varname
);
9345 if (!value
&& spec_undefvar_allowed
)
9349 fatal_error (input_location
,
9350 "environment variable %qs not defined", varname
);
9352 /* We have to escape every character of the environment variable so
9353 they are not interpreted as active spec characters. A
9354 particularly painful case is when we are reading a variable
9355 holding a windows path complete with \ separators. */
9356 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
9357 result
= XNEWVAR (char, len
);
9358 for (ptr
= result
; *value
; ptr
+= 2)
9364 strcpy (ptr
, argv
[1]);
9369 /* if-exists built-in spec function.
9371 Checks to see if the file specified by the absolute pathname in
9372 ARGS exists. Returns that pathname if found.
9374 The usual use for this function is to check for a library file
9375 (whose name has been expanded with %s). */
9378 if_exists_spec_function (int argc
, const char **argv
)
9380 /* Must have only one argument. */
9381 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9387 /* if-exists-else built-in spec function.
9389 This is like if-exists, but takes an additional argument which
9390 is returned if the first argument does not exist. */
9393 if_exists_else_spec_function (int argc
, const char **argv
)
9395 /* Must have exactly two arguments. */
9399 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9405 /* sanitize built-in spec function.
9407 This returns non-NULL, if sanitizing address, thread or
9408 any of the undefined behavior sanitizers. */
9411 sanitize_spec_function (int argc
, const char **argv
)
9416 if (strcmp (argv
[0], "address") == 0)
9417 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
9418 if (strcmp (argv
[0], "kernel-address") == 0)
9419 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
9420 if (strcmp (argv
[0], "thread") == 0)
9421 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
9422 if (strcmp (argv
[0], "undefined") == 0)
9423 return ((flag_sanitize
9424 & (SANITIZE_UNDEFINED
| SANITIZE_UNDEFINED_NONDEFAULT
))
9425 && !flag_sanitize_undefined_trap_on_error
) ? "" : NULL
;
9426 if (strcmp (argv
[0], "leak") == 0)
9427 return ((flag_sanitize
9428 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
9429 == SANITIZE_LEAK
) ? "" : NULL
;
9433 /* replace-outfile built-in spec function.
9435 This looks for the first argument in the outfiles array's name and
9436 replaces it with the second argument. */
9439 replace_outfile_spec_function (int argc
, const char **argv
)
9442 /* Must have exactly two arguments. */
9446 for (i
= 0; i
< n_infiles
; i
++)
9448 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9449 outfiles
[i
] = xstrdup (argv
[1]);
9454 /* remove-outfile built-in spec function.
9456 * This looks for the first argument in the outfiles array's name and
9460 remove_outfile_spec_function (int argc
, const char **argv
)
9463 /* Must have exactly one argument. */
9467 for (i
= 0; i
< n_infiles
; i
++)
9469 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9475 /* Given two version numbers, compares the two numbers.
9476 A version number must match the regular expression
9477 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
9480 compare_version_strings (const char *v1
, const char *v2
)
9485 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
9486 REG_EXTENDED
| REG_NOSUB
) != 0)
9488 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
9489 if (rresult
== REG_NOMATCH
)
9490 fatal_error (input_location
, "invalid version number %qs", v1
);
9491 else if (rresult
!= 0)
9493 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
9494 if (rresult
== REG_NOMATCH
)
9495 fatal_error (input_location
, "invalid version number %qs", v2
);
9496 else if (rresult
!= 0)
9499 return strverscmp (v1
, v2
);
9503 /* version_compare built-in spec function.
9505 This takes an argument of the following form:
9507 <comparison-op> <arg1> [<arg2>] <switch> <result>
9509 and produces "result" if the comparison evaluates to true,
9510 and nothing if it doesn't.
9512 The supported <comparison-op> values are:
9514 >= true if switch is a later (or same) version than arg1
9516 < true if switch is an earlier version than arg1
9518 >< true if switch is arg1 or later, and earlier than arg2
9519 <> true if switch is earlier than arg1 or is arg2 or later
9521 If the switch is not present, the condition is false unless
9522 the first character of the <comparison-op> is '!'.
9525 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
9526 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
9529 version_compare_spec_function (int argc
, const char **argv
)
9533 const char *switch_value
= NULL
;
9538 fatal_error (input_location
, "too few arguments to %%:version-compare");
9539 if (argv
[0][0] == '\0')
9541 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
9543 if (argc
!= nargs
+ 3)
9544 fatal_error (input_location
, "too many arguments to %%:version-compare");
9546 switch_len
= strlen (argv
[nargs
+ 1]);
9547 for (i
= 0; i
< n_switches
; i
++)
9548 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
9549 && check_live_switch (i
, switch_len
))
9550 switch_value
= switches
[i
].part1
+ switch_len
;
9552 if (switch_value
== NULL
)
9556 comp1
= compare_version_strings (switch_value
, argv
[1]);
9558 comp2
= compare_version_strings (switch_value
, argv
[2]);
9560 comp2
= -1; /* This value unused. */
9563 switch (argv
[0][0] << 8 | argv
[0][1])
9565 case '>' << 8 | '=':
9566 result
= comp1
>= 0;
9568 case '!' << 8 | '<':
9569 result
= comp1
>= 0 || switch_value
== NULL
;
9574 case '!' << 8 | '>':
9575 result
= comp1
< 0 || switch_value
== NULL
;
9577 case '>' << 8 | '<':
9578 result
= comp1
>= 0 && comp2
< 0;
9580 case '<' << 8 | '>':
9581 result
= comp1
< 0 || comp2
>= 0;
9585 fatal_error (input_location
,
9586 "unknown operator %qs in %%:version-compare", argv
[0]);
9591 return argv
[nargs
+ 2];
9594 /* %:include builtin spec function. This differs from %include in that it
9595 can be nested inside a spec, and thus be conditionalized. It takes
9596 one argument, the filename, and looks for it in the startfile path.
9597 The result is always NULL, i.e. an empty expansion. */
9600 include_spec_function (int argc
, const char **argv
)
9607 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
9608 read_specs (file
? file
: argv
[0], false, false);
9613 /* %:find-file spec function. This function replaces its argument by
9614 the file found through find_file, that is the -print-file-name gcc
9617 find_file_spec_function (int argc
, const char **argv
)
9624 file
= find_file (argv
[0]);
9629 /* %:find-plugindir spec function. This function replaces its argument
9630 by the -iplugindir=<dir> option. `dir' is found through find_file, that
9631 is the -print-file-name gcc program option. */
9633 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
9640 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
9645 /* %:print-asm-header spec function. Print a banner to say that the
9646 following output is from the assembler. */
9649 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
9650 const char **argv ATTRIBUTE_UNUSED
)
9652 printf (_("Assembler options\n=================\n\n"));
9653 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
9658 /* Get a random number for -frandom-seed */
9660 static unsigned HOST_WIDE_INT
9661 get_random_number (void)
9663 unsigned HOST_WIDE_INT ret
= 0;
9666 fd
= open ("/dev/urandom", O_RDONLY
);
9669 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
9675 /* Get some more or less random data. */
9676 #ifdef HAVE_GETTIMEOFDAY
9680 gettimeofday (&tv
, NULL
);
9681 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
9685 time_t now
= time (NULL
);
9687 if (now
!= (time_t)-1)
9688 ret
= (unsigned) now
;
9692 return ret
^ getpid ();
9695 /* %:compare-debug-dump-opt spec function. Save the last argument,
9696 expected to be the last -fdump-final-insns option, or generate a
9700 compare_debug_dump_opt_spec_function (int arg
,
9701 const char **argv ATTRIBUTE_UNUSED
)
9706 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
9709 fatal_error (input_location
,
9710 "too many arguments to %%:compare-debug-dump-opt");
9712 do_spec_2 ("%{fdump-final-insns=*:%*}");
9713 do_spec_1 (" ", 0, NULL
);
9715 if (argbuf
.length () > 0
9716 && strcmp (argv
[argbuf
.length () - 1], "."))
9721 name
= xstrdup (argv
[argbuf
.length () - 1]);
9726 const char *ext
= NULL
;
9728 if (argbuf
.length () > 0)
9730 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
9733 else if (!compare_debug
)
9736 do_spec_2 ("%g.gkd");
9738 do_spec_1 (" ", 0, NULL
);
9740 gcc_assert (argbuf
.length () > 0);
9742 name
= concat (argbuf
.last (), ext
, NULL
);
9744 ret
= concat ("-fdump-final-insns=", name
, NULL
);
9747 which
= compare_debug
< 0;
9748 debug_check_temp_file
[which
] = name
;
9752 unsigned HOST_WIDE_INT value
= get_random_number ();
9754 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
9760 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
9771 static const char *debug_auxbase_opt
;
9773 /* %:compare-debug-self-opt spec function. Expands to the options
9774 that are to be passed in the second compilation of
9778 compare_debug_self_opt_spec_function (int arg
,
9779 const char **argv ATTRIBUTE_UNUSED
)
9782 fatal_error (input_location
,
9783 "too many arguments to %%:compare-debug-self-opt");
9785 if (compare_debug
>= 0)
9788 do_spec_2 ("%{c|S:%{o*:%*}}");
9789 do_spec_1 (" ", 0, NULL
);
9791 if (argbuf
.length () > 0)
9792 debug_auxbase_opt
= concat ("-auxbase-strip ",
9796 debug_auxbase_opt
= NULL
;
9799 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
9800 %<fdump-final-insns=* -w -S -o %j \
9801 %{!fcompare-debug-second:-fcompare-debug-second} \
9802 ", compare_debug_opt
, NULL
);
9805 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
9806 options that are to be passed in the second compilation of
9807 compare-debug. It expects, as an argument, the basename of the
9808 current input file name, with the .gk suffix appended to it. */
9811 compare_debug_auxbase_opt_spec_function (int arg
,
9818 fatal_error (input_location
,
9819 "too few arguments to %%:compare-debug-auxbase-opt");
9822 fatal_error (input_location
,
9823 "too many arguments to %%:compare-debug-auxbase-opt");
9825 if (compare_debug
>= 0)
9828 len
= strlen (argv
[0]);
9829 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
9830 fatal_error (input_location
, "argument to %%:compare-debug-auxbase-opt "
9831 "does not end in .gk");
9833 if (debug_auxbase_opt
)
9834 return debug_auxbase_opt
;
9836 #define OPT "-auxbase "
9839 name
= (char*) xmalloc (sizeof (OPT
) + len
);
9840 memcpy (name
, OPT
, sizeof (OPT
) - 1);
9841 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
9842 name
[sizeof (OPT
) - 1 + len
] = '\0';
9849 /* %:pass-through-libs spec function. Finds all -l options and input
9850 file names in the lib spec passed to it, and makes a list of them
9851 prepended with the plugin option to cause them to be passed through
9852 to the final link after all the new object files have been added. */
9855 pass_through_libs_spec_func (int argc
, const char **argv
)
9857 char *prepended
= xstrdup (" ");
9859 /* Shlemiel the painter's algorithm. Innately horrible, but at least
9860 we know that there will never be more than a handful of strings to
9861 concat, and it's only once per run, so it's not worth optimising. */
9862 for (n
= 0; n
< argc
; n
++)
9864 char *old
= prepended
;
9865 /* Anything that isn't an option is a full path to an output
9866 file; pass it through if it ends in '.a'. Among options,
9868 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
9870 const char *lopt
= argv
[n
] + 2;
9871 /* Handle both joined and non-joined -l options. If for any
9872 reason there's a trailing -l with no joined or following
9873 arg just discard it. */
9874 if (!*lopt
&& ++n
>= argc
)
9878 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
9881 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
9883 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
9884 argv
[n
], " ", NULL
);
9886 if (prepended
!= old
)
9892 /* %:replace-extension spec function. Replaces the extension of the
9893 first argument with the second argument. */
9896 replace_extension_spec_func (int argc
, const char **argv
)
9904 fatal_error (input_location
, "too few arguments to %%:replace-extension");
9906 name
= xstrdup (argv
[0]);
9908 for (i
= strlen (name
) - 1; i
>= 0; i
--)
9909 if (IS_DIR_SEPARATOR (name
[i
]))
9912 p
= strrchr (name
+ i
+ 1, '.');
9916 result
= concat (name
, argv
[1], NULL
);
9922 /* Returns "" if ARGV[ARGC - 2] is greater than ARGV[ARGC-1].
9923 Otherwise, return NULL. */
9926 greater_than_spec_func (int argc
, const char **argv
)
9933 gcc_assert (argc
>= 2);
9935 long arg
= strtol (argv
[argc
- 2], &converted
, 10);
9936 gcc_assert (converted
!= argv
[argc
- 2]);
9938 long lim
= strtol (argv
[argc
- 1], &converted
, 10);
9939 gcc_assert (converted
!= argv
[argc
- 1]);
9947 /* Returns "" if debug_info_level is greater than ARGV[ARGC-1].
9948 Otherwise, return NULL. */
9951 debug_level_greater_than_spec_func (int argc
, const char **argv
)
9956 fatal_error (input_location
,
9957 "wrong number of arguments to %%:debug-level-gt");
9959 long arg
= strtol (argv
[0], &converted
, 10);
9960 gcc_assert (converted
!= argv
[0]);
9962 if (debug_info_level
> arg
)
9968 /* Insert backslash before spaces in ORIG (usually a file path), to
9969 avoid being broken by spec parser.
9971 This function is needed as do_spec_1 treats white space (' ' and '\t')
9972 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
9973 the file name should be treated as a single argument rather than being
9974 broken into multiple. Solution is to insert '\\' before the space in a
9977 This function converts and only converts all occurrence of ' '
9978 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
9982 "a\\ b" -> "a\\\\ b"
9984 orig: input null-terminating string that was allocated by xalloc. The
9985 memory it points to might be freed in this function. Behavior undefined
9986 if ORIG wasn't xalloced or was freed already at entry.
9988 Return: ORIG if no conversion needed. Otherwise a newly allocated string
9989 that was converted from ORIG. */
9992 convert_white_space (char *orig
)
9994 int len
, number_of_space
= 0;
9996 for (len
= 0; orig
[len
]; len
++)
9997 if (orig
[len
] == ' ' || orig
[len
] == '\t') number_of_space
++;
9999 if (number_of_space
)
10001 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
10003 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
10005 if (orig
[j
] == ' ' || orig
[j
] == '\t')
10006 new_spec
[k
++] = '\\';
10007 new_spec
[k
] = orig
[j
];
10017 path_prefix_reset (path_prefix
*prefix
)
10019 struct prefix_list
*iter
, *next
;
10020 iter
= prefix
->plist
;
10024 free (const_cast <char *> (iter
->prefix
));
10029 prefix
->max_len
= 0;
10032 /* Restore all state within gcc.c to the initial state, so that the driver
10033 code can be safely re-run in-process.
10035 Many const char * variables are referenced by static specs (see
10036 INIT_STATIC_SPEC above). These variables are restored to their default
10037 values by a simple loop over the static specs.
10039 For other variables, we directly restore them all to their initial
10040 values (often implicitly 0).
10042 Free the various obstacks in this file, along with "opts_obstack"
10045 This function also restores any environment variables that were changed. */
10048 driver::finalize ()
10051 params_c_finalize ();
10052 diagnostic_finish (global_dc
);
10055 at_file_supplied
= 0;
10056 print_help_list
= 0;
10058 verbose_only_flag
= 0;
10059 print_subprocess_help
= 0;
10061 report_times_to_file
= NULL
;
10062 target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
10063 target_system_root_changed
= 0;
10064 target_sysroot_suffix
= 0;
10065 target_sysroot_hdrs_suffix
= 0;
10066 save_temps_flag
= SAVE_TEMPS_NONE
;
10067 save_temps_prefix
= 0;
10068 save_temps_length
= 0;
10069 spec_machine
= DEFAULT_TARGET_MACHINE
;
10070 greatest_status
= 1;
10072 finalize_options_struct (&global_options
);
10073 finalize_options_struct (&global_options_set
);
10075 obstack_free (&obstack
, NULL
);
10076 obstack_free (&opts_obstack
, NULL
); /* in opts.c */
10077 obstack_free (&collect_obstack
, NULL
);
10079 link_command_spec
= LINK_COMMAND_SPEC
;
10081 obstack_free (&multilib_obstack
, NULL
);
10083 user_specs_head
= NULL
;
10084 user_specs_tail
= NULL
;
10086 /* Within the "compilers" vec, the fields "suffix" and "spec" were
10087 statically allocated for the default compilers, but dynamically
10088 allocated for additional compilers. Delete them for the latter. */
10089 for (int i
= n_default_compilers
; i
< n_compilers
; i
++)
10091 free (const_cast <char *> (compilers
[i
].suffix
));
10092 free (const_cast <char *> (compilers
[i
].spec
));
10094 XDELETEVEC (compilers
);
10098 linker_options
.truncate (0);
10099 assembler_options
.truncate (0);
10100 preprocessor_options
.truncate (0);
10102 path_prefix_reset (&exec_prefixes
);
10103 path_prefix_reset (&startfile_prefixes
);
10104 path_prefix_reset (&include_prefixes
);
10106 machine_suffix
= 0;
10107 just_machine_suffix
= 0;
10108 gcc_exec_prefix
= 0;
10109 gcc_libexec_prefix
= 0;
10110 md_exec_prefix
= MD_EXEC_PREFIX
;
10111 md_startfile_prefix
= MD_STARTFILE_PREFIX
;
10112 md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
10114 multilib_os_dir
= 0;
10117 /* Free any specs dynamically-allocated by set_spec.
10118 These will be at the head of the list, before the
10119 statically-allocated ones. */
10122 while (specs
!= static_specs
)
10124 spec_list
*next
= specs
->next
;
10125 free (const_cast <char *> (specs
->name
));
10131 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
10133 spec_list
*sl
= &static_specs
[i
];
10137 free (const_cast <char *> (*(sl
->ptr_spec
)));
10138 sl
->alloc_p
= false;
10140 *(sl
->ptr_spec
) = sl
->default_ptr
;
10143 extra_specs
= NULL
;
10146 processing_spec_function
= 0;
10148 argbuf
.truncate (0);
10154 execution_count
= 0;
10157 temp_filename
= NULL
;
10158 temp_filename_length
= 0;
10159 always_delete_queue
= NULL
;
10160 failure_delete_queue
= NULL
;
10162 XDELETEVEC (switches
);
10165 n_switches_alloc
= 0;
10168 compare_debug_second
= 0;
10169 compare_debug_opt
= NULL
;
10170 for (int i
= 0; i
< 2; i
++)
10172 switches_debug_check
[i
] = NULL
;
10173 n_switches_debug_check
[i
] = 0;
10174 n_switches_alloc_debug_check
[i
] = 0;
10175 debug_check_temp_file
[i
] = NULL
;
10178 XDELETEVEC (infiles
);
10181 n_infiles_alloc
= 0;
10183 combine_inputs
= false;
10184 added_libraries
= 0;
10185 XDELETEVEC (outfiles
);
10188 last_language_n_infiles
= 0;
10189 gcc_input_filename
= NULL
;
10190 input_file_number
= 0;
10191 input_filename_length
= 0;
10192 basename_length
= 0;
10193 suffixed_basename_length
= 0;
10194 input_basename
= NULL
;
10195 input_suffix
= NULL
;
10196 /* We don't need to purge "input_stat", just to unset "input_stat_set". */
10197 input_stat_set
= 0;
10198 input_file_compiler
= NULL
;
10200 delete_this_arg
= 0;
10201 this_is_output_file
= 0;
10202 this_is_library_file
= 0;
10203 this_is_linker_script
= 0;
10204 input_from_pipe
= 0;
10205 suffix_subst
= NULL
;
10210 debug_auxbase_opt
= NULL
;
10212 used_arg
.finalize ();
10216 Targets can provide configure-time default options in
10217 OPTION_DEFAULT_SPECS. The jit needs to access these, but
10218 they are expressed in the spec language.
10220 Run just enough of the driver to be able to expand these
10221 specs, and then call the callback CB on each
10222 such option. The options strings are *without* a leading
10223 '-' character e.g. ("march=x86-64"). Finally, clean up. */
10226 driver_get_configure_time_options (void (*cb
) (const char *option
,
10232 obstack_init (&obstack
);
10233 init_opts_obstack ();
10236 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
10237 do_option_spec (option_default_specs
[i
].name
,
10238 option_default_specs
[i
].spec
);
10240 for (i
= 0; (int) i
< n_switches
; i
++)
10242 gcc_assert (switches
[i
].part1
);
10243 (*cb
) (switches
[i
].part1
, user_data
);
10246 obstack_free (&opts_obstack
, NULL
);
10247 obstack_free (&obstack
, NULL
);