1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2019 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 */
39 #include "opt-suggestions.h"
41 #include "diagnostic.h"
45 #include "filenames.h"
46 #include "spellcheck.h"
50 /* Manage the manipulation of env vars.
52 We poison "getenv" and "putenv", so that all enviroment-handling is
53 done through this class. Note that poisoning happens in the
54 preprocessor at the identifier level, and doesn't distinguish between
58 Hence we need to use "get" for the accessor method, not "getenv". */
63 void init (bool can_restore
, bool debug
);
64 const char *get (const char *name
);
65 void xput (const char *string
);
80 /* The singleton instance of class env_manager. */
82 static env_manager env
;
84 /* Initializer for class env_manager.
86 We can't do this as a constructor since we have a statically
87 allocated instance ("env" above). */
90 env_manager::init (bool can_restore
, bool debug
)
92 m_can_restore
= can_restore
;
96 /* Get the value of NAME within the environment. Essentially
97 a wrapper for ::getenv, but adding logging, and the possibility
98 of caching results. */
101 env_manager::get (const char *name
)
103 const char *result
= ::getenv (name
);
105 fprintf (stderr
, "env_manager::getenv (%s) -> %s\n", name
, result
);
109 /* Put the given KEY=VALUE entry STRING into the environment.
110 If the env_manager was initialized with CAN_RESTORE set, then
111 also record the old value of KEY within the environment, so that it
112 can be later restored. */
115 env_manager::xput (const char *string
)
118 fprintf (stderr
, "env_manager::xput (%s)\n", string
);
120 fnotice (stderr
, "%s\n", string
);
124 char *equals
= strchr (const_cast <char *> (string
), '=');
128 kv
.m_key
= xstrndup (string
, equals
- string
);
129 const char *cur_value
= ::getenv (kv
.m_key
);
131 fprintf (stderr
, "saving old value: %s\n",cur_value
);
132 kv
.m_value
= cur_value
? xstrdup (cur_value
) : NULL
;
133 m_keys
.safe_push (kv
);
136 ::putenv (CONST_CAST (char *, string
));
139 /* Undo any xputenv changes made since last restore.
140 Can only be called if the env_manager was initialized with
141 CAN_RESTORE enabled. */
144 env_manager::restore ()
149 gcc_assert (m_can_restore
);
151 FOR_EACH_VEC_ELT_REVERSE (m_keys
, i
, item
)
154 printf ("restoring saved key: %s value: %s\n", item
->m_key
, item
->m_value
);
156 ::setenv (item
->m_key
, item
->m_value
, 1);
158 ::unsetenv (item
->m_key
);
160 free (item
->m_value
);
166 /* Forbid other uses of getenv and putenv. */
167 #if (GCC_VERSION >= 3000)
168 #pragma GCC poison getenv putenv
173 /* By default there is no special suffix for target executables. */
174 #ifdef TARGET_EXECUTABLE_SUFFIX
175 #define HAVE_TARGET_EXECUTABLE_SUFFIX
177 #define TARGET_EXECUTABLE_SUFFIX ""
180 /* By default there is no special suffix for host executables. */
181 #ifdef HOST_EXECUTABLE_SUFFIX
182 #define HAVE_HOST_EXECUTABLE_SUFFIX
184 #define HOST_EXECUTABLE_SUFFIX ""
187 /* By default, the suffix for target object files is ".o". */
188 #ifdef TARGET_OBJECT_SUFFIX
189 #define HAVE_TARGET_OBJECT_SUFFIX
191 #define TARGET_OBJECT_SUFFIX ".o"
194 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
196 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
197 #ifndef LIBRARY_PATH_ENV
198 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
201 /* If a stage of compilation returns an exit status >= 1,
202 compilation of that file ceases. */
204 #define MIN_FATAL_STATUS 1
206 /* Flag set by cppspec.c to 1. */
209 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
210 static bool at_file_supplied
;
212 /* Definition of string containing the arguments given to configure. */
213 #include "configargs.h"
215 /* Flag saying to print the command line options understood by gcc and its
218 static int print_help_list
;
220 /* Flag saying to print the version of gcc and its sub-processes. */
222 static int print_version
;
224 /* Flag that stores string prefix for which we provide bash completion. */
226 static const char *completion
= NULL
;
228 /* Flag indicating whether we should ONLY print the command and
229 arguments (like verbose_flag) without executing the command.
230 Displayed arguments are quoted so that the generated command
231 line is suitable for execution. This is intended for use in
232 shell scripts to capture the driver-generated command line. */
233 static int verbose_only_flag
;
235 /* Flag indicating how to print command line options of sub-processes. */
237 static int print_subprocess_help
;
239 /* Linker suffix passed to -fuse-ld=... */
240 static const char *use_ld
;
242 /* Whether we should report subprocess execution times to a file. */
244 FILE *report_times_to_file
= NULL
;
246 /* Nonzero means place this string before uses of /, so that include
247 and library files can be found in an alternate location. */
249 #ifdef TARGET_SYSTEM_ROOT
250 #define DEFAULT_TARGET_SYSTEM_ROOT (TARGET_SYSTEM_ROOT)
252 #define DEFAULT_TARGET_SYSTEM_ROOT (0)
254 static const char *target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
256 /* Nonzero means pass the updated target_system_root to the compiler. */
258 static int target_system_root_changed
;
260 /* Nonzero means append this string to target_system_root. */
262 static const char *target_sysroot_suffix
= 0;
264 /* Nonzero means append this string to target_system_root for headers. */
266 static const char *target_sysroot_hdrs_suffix
= 0;
268 /* Nonzero means write "temp" files in source directory
269 and use the source file's name in them, and don't delete them. */
271 static enum save_temps
{
272 SAVE_TEMPS_NONE
, /* no -save-temps */
273 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
274 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
277 /* Output file to use to get the object directory for -save-temps=obj */
278 static char *save_temps_prefix
= 0;
279 static size_t save_temps_length
= 0;
281 /* The compiler version. */
283 static const char *compiler_version
;
285 /* The target version. */
287 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
289 /* The target machine. */
291 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
292 static const char *spec_host_machine
= DEFAULT_REAL_TARGET_MACHINE
;
294 /* List of offload targets. Separated by colon. Empty string for
295 -foffload=disable. */
297 static char *offload_targets
= NULL
;
299 /* Nonzero if cross-compiling.
300 When -b is used, the value comes from the `specs' file. */
302 #ifdef CROSS_DIRECTORY_STRUCTURE
303 static const char *cross_compile
= "1";
305 static const char *cross_compile
= "0";
308 /* Greatest exit code of sub-processes that has been encountered up to
310 static int greatest_status
= 1;
312 /* This is the obstack which we use to allocate many strings. */
314 static struct obstack obstack
;
316 /* This is the obstack to build an environment variable to pass to
317 collect2 that describes all of the relevant switches of what to
318 pass the compiler in building the list of pointers to constructors
321 static struct obstack collect_obstack
;
323 /* Forward declaration for prototypes. */
327 static void init_spec (void);
328 static void store_arg (const char *, int, int);
329 static void insert_wrapper (const char *);
330 static char *load_specs (const char *);
331 static void read_specs (const char *, bool, bool);
332 static void set_spec (const char *, const char *, bool);
333 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
334 static char *build_search_list (const struct path_prefix
*, const char *,
336 static void xputenv (const char *);
337 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
339 static int access_check (const char *, int);
340 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
341 static void add_prefix (struct path_prefix
*, const char *, const char *,
343 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
344 const char *, int, int, int);
345 static char *skip_whitespace (char *);
346 static void delete_if_ordinary (const char *);
347 static void delete_temp_files (void);
348 static void delete_failure_queue (void);
349 static void clear_failure_queue (void);
350 static int check_live_switch (int, int);
351 static const char *handle_braces (const char *);
352 static inline bool input_suffix_matches (const char *, const char *);
353 static inline bool switch_matches (const char *, const char *, int);
354 static inline void mark_matching_switches (const char *, const char *, int);
355 static inline void process_marked_switches (void);
356 static const char *process_brace_body (const char *, const char *, const char *, int, int);
357 static const struct spec_function
*lookup_spec_function (const char *);
358 static const char *eval_spec_function (const char *, const char *, const char *);
359 static const char *handle_spec_function (const char *, bool *, const char *);
360 static char *save_string (const char *, int);
361 static void set_collect_gcc_options (void);
362 static int do_spec_1 (const char *, int, const char *);
363 static int do_spec_2 (const char *, const char *);
364 static void do_option_spec (const char *, const char *);
365 static void do_self_spec (const char *);
366 static const char *find_file (const char *);
367 static int is_directory (const char *, bool);
368 static const char *validate_switches (const char *, bool);
369 static void validate_all_switches (void);
370 static inline void validate_switches_from_spec (const char *, bool);
371 static void give_switch (int, int);
372 static int default_arg (const char *, int);
373 static void set_multilib_dir (void);
374 static void print_multilib_info (void);
375 static void display_help (void);
376 static void add_preprocessor_option (const char *, int);
377 static void add_assembler_option (const char *, int);
378 static void add_linker_option (const char *, int);
379 static void process_command (unsigned int, struct cl_decoded_option
*);
380 static int execute (void);
381 static void alloc_args (void);
382 static void clear_args (void);
383 static void fatal_signal (int);
384 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
385 static void init_gcc_specs (struct obstack
*, const char *, const char *,
388 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
389 static const char *convert_filename (const char *, int, int);
392 static void try_generate_repro (const char **argv
);
393 static const char *getenv_spec_function (int, const char **);
394 static const char *if_exists_spec_function (int, const char **);
395 static const char *if_exists_else_spec_function (int, const char **);
396 static const char *sanitize_spec_function (int, const char **);
397 static const char *replace_outfile_spec_function (int, const char **);
398 static const char *remove_outfile_spec_function (int, const char **);
399 static const char *version_compare_spec_function (int, const char **);
400 static const char *include_spec_function (int, const char **);
401 static const char *find_file_spec_function (int, const char **);
402 static const char *find_plugindir_spec_function (int, const char **);
403 static const char *print_asm_header_spec_function (int, const char **);
404 static const char *compare_debug_dump_opt_spec_function (int, const char **);
405 static const char *compare_debug_self_opt_spec_function (int, const char **);
406 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
407 static const char *pass_through_libs_spec_func (int, const char **);
408 static const char *replace_extension_spec_func (int, const char **);
409 static const char *greater_than_spec_func (int, const char **);
410 static const char *debug_level_greater_than_spec_func (int, const char **);
411 static const char *find_fortran_preinclude_file (int, const char **);
412 static char *convert_white_space (char *);
414 /* The Specs Language
416 Specs are strings containing lines, each of which (if not blank)
417 is made up of a program name, and arguments separated by spaces.
418 The program name must be exact and start from root, since no path
419 is searched and it is unreliable to depend on the current working directory.
420 Redirection of input or output is not supported; the subprograms must
421 accept filenames saying what files to read and write.
423 In addition, the specs can contain %-sequences to substitute variable text
424 or for conditional text. Here is a table of all defined %-sequences.
425 Note that spaces are not generated automatically around the results of
426 expanding these sequences; therefore, you can concatenate them together
427 or with constant text in a single argument.
429 %% substitute one % into the program name or argument.
430 %i substitute the name of the input file being processed.
431 %b substitute the basename of the input file being processed.
432 This is the substring up to (and not including) the last period
433 and not including the directory unless -save-temps was specified
434 to put temporaries in a different location.
435 %B same as %b, but include the file suffix (text after the last period).
437 substitute a file name that has suffix SUFFIX and is chosen
438 once per compilation, and mark the argument a la %d. To reduce
439 exposure to denial-of-service attacks, the file name is now
440 chosen in a way that is hard to predict even when previously
441 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
442 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
443 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
444 had been pre-processed. Previously, %g was simply substituted
445 with a file name chosen once per compilation, without regard
446 to any appended suffix (which was therefore treated just like
447 ordinary text), making such attacks more likely to succeed.
449 like %g, but if -pipe is in effect, expands simply to "-".
451 like %g, but if -pipe is in effect, expands to nothing. (We have both
452 %| and %m to accommodate differences between system assemblers; see
453 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
455 like %g, but generates a new temporary file name even if %uSUFFIX
458 substitutes the last file name generated with %uSUFFIX, generating a
459 new one if there is no such last file name. In the absence of any
460 %uSUFFIX, this is just like %gSUFFIX, except they don't share
461 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
462 would involve the generation of two distinct file names, one
463 for each `%g.s' and another for each `%U.s'. Previously, %U was
464 simply substituted with a file name chosen for the previous %u,
465 without regard to any appended suffix.
467 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
468 writable, and if save-temps is off; otherwise, substitute the name
469 of a temporary file, just like %u. This temporary file is not
470 meant for communication between processes, but rather as a junk
473 substitutes .SUFFIX for the suffixes of a matched switch's args when
474 it is subsequently output with %*. SUFFIX is terminated by the next
476 %d marks the argument containing or following the %d as a
477 temporary file name, so that file will be deleted if GCC exits
478 successfully. Unlike %g, this contributes no text to the argument.
479 %w marks the argument containing or following the %w as the
480 "output file" of this compilation. This puts the argument
481 into the sequence of arguments that %o will substitute later.
482 %V indicates that this compilation produces no "output file".
484 like %{...} but marks the last argument supplied within as a file
485 to be deleted on failure.
487 like %{...} but puts the result into a FILE and substitutes @FILE
488 if an @file argument has been supplied.
489 %o substitutes the names of all the output files, with spaces
490 automatically placed around them. You should write spaces
491 around the %o as well or the results are undefined.
492 %o is for use in the specs for running the linker.
493 Input files whose names have no recognized suffix are not compiled
494 at all, but they are included among the output files, so they will
496 %O substitutes the suffix for object files. Note that this is
497 handled specially when it immediately follows %g, %u, or %U
498 (with or without a suffix argument) because of the need for
499 those to form complete file names. The handling is such that
500 %O is treated exactly as if it had already been substituted,
501 except that %g, %u, and %U do not currently support additional
502 SUFFIX characters following %O as they would following, for
504 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
505 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
506 and -B options) and -imultilib as necessary.
507 %s current argument is the name of a library or startup file of some sort.
508 Search for that file in a standard list of directories
509 and substitute the full name found.
510 %eSTR Print STR as an error message. STR is terminated by a newline.
511 Use this when inconsistent options are detected.
512 %nSTR Print STR as a notice. STR is terminated by a newline.
513 %x{OPTION} Accumulate an option for %X.
514 %X Output the accumulated linker options specified by compilations.
515 %Y Output the accumulated assembler options specified by compilations.
516 %Z Output the accumulated preprocessor options specified by compilations.
517 %a process ASM_SPEC as a spec.
518 This allows config.h to specify part of the spec for running as.
519 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
520 used here. This can be used to run a post-processor after the
521 assembler has done its job.
522 %D Dump out a -L option for each directory in startfile_prefixes.
523 If multilib_dir is set, extra entries are generated with it affixed.
524 %l process LINK_SPEC as a spec.
525 %L process LIB_SPEC as a spec.
526 %M Output multilib_os_dir.
527 %G process LIBGCC_SPEC as a spec.
528 %R Output the concatenation of target_system_root and
529 target_sysroot_suffix.
530 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
531 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
532 %C process CPP_SPEC as a spec.
533 %1 process CC1_SPEC as a spec.
534 %2 process CC1PLUS_SPEC as a spec.
535 %* substitute the variable part of a matched option. (See below.)
536 Note that each comma in the substituted string is replaced by
537 a single space. A space is appended after the last substition
538 unless there is more text in current sequence.
539 %<S remove all occurrences of -S from the command line.
540 Note - this command is position dependent. % commands in the
541 spec string before this one will see -S, % commands in the
542 spec string after this one will not.
543 %>S Similar to "%<S", but keep it in the GCC command line.
544 %<S* remove all occurrences of all switches beginning with -S from the
547 Call the named function FUNCTION, passing it ARGS. ARGS is
548 first processed as a nested spec string, then split into an
549 argument vector in the usual fashion. The function returns
550 a string which is processed as if it had appeared literally
551 as part of the current spec.
552 %{S} substitutes the -S switch, if that switch was given to GCC.
553 If that switch was not specified, this substitutes nothing.
554 Here S is a metasyntactic variable.
555 %{S*} substitutes all the switches specified to GCC whose names start
556 with -S. This is used for -o, -I, etc; switches that take
557 arguments. GCC considers `-o foo' as being one switch whose
558 name starts with `o'. %{o*} would substitute this text,
559 including the space; thus, two arguments would be generated.
560 %{S*&T*} likewise, but preserve order of S and T options (the order
561 of S and T in the spec is not significant). Can be any number
562 of ampersand-separated variables; for each the wild card is
563 optional. Useful for CPP as %{D*&U*&A*}.
565 %{S:X} substitutes X, if the -S switch was given to GCC.
566 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
567 %{S*:X} substitutes X if one or more switches whose names start
568 with -S was given to GCC. Normally X is substituted only
569 once, no matter how many such switches appeared. However,
570 if %* appears somewhere in X, then X will be substituted
571 once for each matching switch, with the %* replaced by the
572 part of that switch that matched the '*'. A space will be
573 appended after the last substition unless there is more
574 text in current sequence.
575 %{.S:X} substitutes X, if processing a file with suffix S.
576 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
577 %{,S:X} substitutes X, if processing a file which will use spec S.
578 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
580 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
581 combined with '!', '.', ',', and '*' as above binding stronger
583 If %* appears in X, all of the alternatives must be starred, and
584 only the first matching alternative is substituted.
585 %{%:function(args):X}
586 Call function named FUNCTION with args ARGS. If the function
587 returns non-NULL, then X is substituted, if it returns
588 NULL, it isn't substituted.
589 %{S:X; if S was given to GCC, substitutes X;
590 T:Y; else if T was given to GCC, substitutes Y;
591 :D} else substitutes D. There can be as many clauses as you need.
592 This may be combined with '.', '!', ',', '|', and '*' as above.
594 %(Spec) processes a specification defined in a specs file as *Spec:
596 The switch matching text S in a %{S}, %{S:X}, or similar construct can use
597 a backslash to ignore the special meaning of the character following it,
598 thus allowing literal matching of a character that is otherwise specially
599 treated. For example, %{std=iso9899\:1999:X} substitutes X if the
600 -std=iso9899:1999 option is given.
602 The conditional text X in a %{S:X} or similar construct may contain
603 other nested % constructs or spaces, or even newlines. They are
604 processed as usual, as described above. Trailing white space in X is
605 ignored. White space may also appear anywhere on the left side of the
606 colon in these constructs, except between . or * and the corresponding
609 The -O, -f, -g, -m, and -W switches are handled specifically in these
610 constructs. If another value of -O or the negated form of a -f, -m, or
611 -W switch is found later in the command line, the earlier switch
612 value is ignored, except with {S*} where S is just one letter; this
613 passes all matching options.
615 The character | at the beginning of the predicate text is used to indicate
616 that a command should be piped to the following command, but only if -pipe
619 Note that it is built into GCC which switches take arguments and which
620 do not. You might think it would be useful to generalize this to
621 allow each compiler's spec to say which switches take arguments. But
622 this cannot be done in a consistent fashion. GCC cannot even decide
623 which input files have been specified without knowing which switches
624 take arguments, and it must know which input files to compile in order
625 to tell which compilers to run.
627 GCC also knows implicitly that arguments starting in `-l' are to be
628 treated as compiler output files, and passed to the linker in their
629 proper position among the other output files. */
631 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
633 /* config.h can define ASM_SPEC to provide extra args to the assembler
634 or extra switch-translations. */
639 /* config.h can define ASM_FINAL_SPEC to run a post processor after
640 the assembler has run. */
641 #ifndef ASM_FINAL_SPEC
642 #define ASM_FINAL_SPEC \
644 objcopy --extract-dwo \
645 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
646 %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\
647 objcopy --strip-dwo \
648 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
652 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
653 or extra switch-translations. */
658 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
659 or extra switch-translations. */
664 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
665 or extra switch-translations. */
667 #define CC1PLUS_SPEC ""
670 /* config.h can define LINK_SPEC to provide extra args to the linker
671 or extra switch-translations. */
676 /* config.h can define LIB_SPEC to override the default libraries. */
678 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
681 /* When using -fsplit-stack we need to wrap pthread_create, in order
682 to initialize the stack guard. We always use wrapping, rather than
683 shared library ordering, and we keep the wrapper function in
684 libgcc. This is not yet a real spec, though it could become one;
685 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
686 only works with GNU ld and gold. */
687 #ifdef HAVE_GOLD_NON_DEFAULT_SPLIT_STACK
688 #define STACK_SPLIT_SPEC " %{fsplit-stack: -fuse-ld=gold --wrap=pthread_create}"
690 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
694 #define STATIC_LIBASAN_LIBS \
695 " %{static-libasan|static:%:include(libsanitizer.spec)%(link_libasan)}"
696 #ifdef LIBASAN_EARLY_SPEC
697 #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
698 #elif defined(HAVE_LD_STATIC_DYNAMIC)
699 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
700 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
703 #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
707 #ifndef LIBASAN_EARLY_SPEC
708 #define LIBASAN_EARLY_SPEC ""
712 #define STATIC_LIBTSAN_LIBS \
713 " %{static-libtsan|static:%:include(libsanitizer.spec)%(link_libtsan)}"
714 #ifdef LIBTSAN_EARLY_SPEC
715 #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
716 #elif defined(HAVE_LD_STATIC_DYNAMIC)
717 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
718 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
721 #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
725 #ifndef LIBTSAN_EARLY_SPEC
726 #define LIBTSAN_EARLY_SPEC ""
730 #define STATIC_LIBLSAN_LIBS \
731 " %{static-liblsan|static:%:include(libsanitizer.spec)%(link_liblsan)}"
732 #ifdef LIBLSAN_EARLY_SPEC
733 #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
734 #elif defined(HAVE_LD_STATIC_DYNAMIC)
735 #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
736 "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
739 #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
743 #ifndef LIBLSAN_EARLY_SPEC
744 #define LIBLSAN_EARLY_SPEC ""
747 #ifndef LIBUBSAN_SPEC
748 #define STATIC_LIBUBSAN_LIBS \
749 " %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}"
750 #ifdef HAVE_LD_STATIC_DYNAMIC
751 #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
752 "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
755 #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
759 /* Linker options for compressed debug sections. */
760 #if HAVE_LD_COMPRESS_DEBUG == 0
761 /* No linker support. */
762 #define LINK_COMPRESS_DEBUG_SPEC \
763 " %{gz*:%e-gz is not supported in this configuration} "
764 #elif HAVE_LD_COMPRESS_DEBUG == 1
765 /* GNU style on input, GNU ld options. Reject, not useful. */
766 #define LINK_COMPRESS_DEBUG_SPEC \
767 " %{gz*:%e-gz is not supported in this configuration} "
768 #elif HAVE_LD_COMPRESS_DEBUG == 2
769 /* GNU style, GNU gold options. */
770 #define LINK_COMPRESS_DEBUG_SPEC \
771 " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
772 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
773 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
774 #elif HAVE_LD_COMPRESS_DEBUG == 3
775 /* ELF gABI style. */
776 #define LINK_COMPRESS_DEBUG_SPEC \
777 " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
778 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
779 " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
781 #error Unknown value for HAVE_LD_COMPRESS_DEBUG.
784 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
787 #if defined(REAL_LIBGCC_SPEC)
788 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
789 #elif defined(LINK_LIBGCC_SPECIAL_1)
790 /* Have gcc do the search for libgcc.a. */
791 #define LIBGCC_SPEC "libgcc.a%s"
793 #define LIBGCC_SPEC "-lgcc"
797 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
798 #ifndef STARTFILE_SPEC
799 #define STARTFILE_SPEC \
800 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
803 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
805 #define ENDFILE_SPEC ""
809 #define LINKER_NAME "collect2"
812 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
813 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
818 /* Assembler options for compressed debug sections. */
819 #if HAVE_LD_COMPRESS_DEBUG < 2
820 /* Reject if the linker cannot write compressed debug sections. */
821 #define ASM_COMPRESS_DEBUG_SPEC \
822 " %{gz*:%e-gz is not supported in this configuration} "
823 #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */
824 #if HAVE_AS_COMPRESS_DEBUG == 0
825 /* No assembler support. Ignore silently. */
826 #define ASM_COMPRESS_DEBUG_SPEC \
828 #elif HAVE_AS_COMPRESS_DEBUG == 1
829 /* GNU style, GNU as options. */
830 #define ASM_COMPRESS_DEBUG_SPEC \
831 " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \
832 " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \
833 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
834 #elif HAVE_AS_COMPRESS_DEBUG == 2
835 /* ELF gABI style. */
836 #define ASM_COMPRESS_DEBUG_SPEC \
837 " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
838 " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
839 " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
841 #error Unknown value for HAVE_AS_COMPRESS_DEBUG.
843 #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */
845 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
847 #ifndef ASM_DEBUG_SPEC
848 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
849 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
850 # define ASM_DEBUG_SPEC \
851 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
852 ? "%{%:debug-level-gt(0):" \
853 "%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \
854 : "%{%:debug-level-gt(0):" \
855 "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
857 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
858 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gstabs}}" ASM_MAP
860 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
861 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gdwarf2}}" ASM_MAP
865 #ifndef ASM_DEBUG_SPEC
866 # define ASM_DEBUG_SPEC ""
869 /* Here is the spec for running the linker, after compiling all files. */
871 /* This is overridable by the target in case they need to specify the
872 -lgcc and -lc order specially, yet not require them to override all
873 of LINK_COMMAND_SPEC. */
874 #ifndef LINK_GCC_C_SEQUENCE_SPEC
875 #define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}"
878 #ifndef LINK_SSP_SPEC
879 #ifdef TARGET_LIBC_PROVIDES_SSP
880 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
881 "|fstack-protector-strong|fstack-protector-explicit:}"
883 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
884 "|fstack-protector-strong|fstack-protector-explicit" \
885 ":-lssp_nonshared -lssp}"
889 #ifdef ENABLE_DEFAULT_PIE
890 #define PIE_SPEC "!no-pie"
891 #define NO_FPIE1_SPEC "fno-pie"
892 #define FPIE1_SPEC NO_FPIE1_SPEC ":;"
893 #define NO_FPIE2_SPEC "fno-PIE"
894 #define FPIE2_SPEC NO_FPIE2_SPEC ":;"
895 #define NO_FPIE_SPEC NO_FPIE1_SPEC "|" NO_FPIE2_SPEC
896 #define FPIE_SPEC NO_FPIE_SPEC ":;"
897 #define NO_FPIC1_SPEC "fno-pic"
898 #define FPIC1_SPEC NO_FPIC1_SPEC ":;"
899 #define NO_FPIC2_SPEC "fno-PIC"
900 #define FPIC2_SPEC NO_FPIC2_SPEC ":;"
901 #define NO_FPIC_SPEC NO_FPIC1_SPEC "|" NO_FPIC2_SPEC
902 #define FPIC_SPEC NO_FPIC_SPEC ":;"
903 #define NO_FPIE1_AND_FPIC1_SPEC NO_FPIE1_SPEC "|" NO_FPIC1_SPEC
904 #define FPIE1_OR_FPIC1_SPEC NO_FPIE1_AND_FPIC1_SPEC ":;"
905 #define NO_FPIE2_AND_FPIC2_SPEC NO_FPIE2_SPEC "|" NO_FPIC2_SPEC
906 #define FPIE2_OR_FPIC2_SPEC NO_FPIE2_AND_FPIC2_SPEC ":;"
907 #define NO_FPIE_AND_FPIC_SPEC NO_FPIE_SPEC "|" NO_FPIC_SPEC
908 #define FPIE_OR_FPIC_SPEC NO_FPIE_AND_FPIC_SPEC ":;"
910 #define PIE_SPEC "pie"
911 #define FPIE1_SPEC "fpie"
912 #define NO_FPIE1_SPEC FPIE1_SPEC ":;"
913 #define FPIE2_SPEC "fPIE"
914 #define NO_FPIE2_SPEC FPIE2_SPEC ":;"
915 #define FPIE_SPEC FPIE1_SPEC "|" FPIE2_SPEC
916 #define NO_FPIE_SPEC FPIE_SPEC ":;"
917 #define FPIC1_SPEC "fpic"
918 #define NO_FPIC1_SPEC FPIC1_SPEC ":;"
919 #define FPIC2_SPEC "fPIC"
920 #define NO_FPIC2_SPEC FPIC2_SPEC ":;"
921 #define FPIC_SPEC FPIC1_SPEC "|" FPIC2_SPEC
922 #define NO_FPIC_SPEC FPIC_SPEC ":;"
923 #define FPIE1_OR_FPIC1_SPEC FPIE1_SPEC "|" FPIC1_SPEC
924 #define NO_FPIE1_AND_FPIC1_SPEC FPIE1_OR_FPIC1_SPEC ":;"
925 #define FPIE2_OR_FPIC2_SPEC FPIE2_SPEC "|" FPIC2_SPEC
926 #define NO_FPIE2_AND_FPIC2_SPEC FPIE1_OR_FPIC2_SPEC ":;"
927 #define FPIE_OR_FPIC_SPEC FPIE_SPEC "|" FPIC_SPEC
928 #define NO_FPIE_AND_FPIC_SPEC FPIE_OR_FPIC_SPEC ":;"
931 #ifndef LINK_PIE_SPEC
934 #define LD_PIE_SPEC "-pie"
937 #define LD_PIE_SPEC ""
939 #define LINK_PIE_SPEC "%{static|shared|r:;" PIE_SPEC ":" LD_PIE_SPEC "} "
942 #ifndef LINK_BUILDID_SPEC
943 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
944 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
948 /* Conditional to test whether the LTO plugin is used or not.
949 FIXME: For slim LTO we will need to enable plugin unconditionally. This
950 still cause problems with PLUGIN_LD != LD and when plugin is built but
951 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
952 plugin only when LTO is enabled. We still honor explicit
953 -fuse-linker-plugin if the linker used understands -plugin. */
955 /* The linker has some plugin support. */
956 #if HAVE_LTO_PLUGIN > 0
957 /* The linker used has full plugin support, use LTO plugin by default. */
958 #if HAVE_LTO_PLUGIN == 2
959 #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
960 #define PLUGIN_COND_CLOSE "}"
962 /* The linker used has limited plugin support, use LTO plugin with explicit
963 -fuse-linker-plugin. */
964 #define PLUGIN_COND "fuse-linker-plugin"
965 #define PLUGIN_COND_CLOSE ""
967 #define LINK_PLUGIN_SPEC \
969 -plugin %(linker_plugin_file) \
970 -plugin-opt=%(lto_wrapper) \
971 -plugin-opt=-fresolution=%u.res \
972 %{flinker-output=*:-plugin-opt=-linker-output-known} \
973 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
976 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
977 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
978 %e-fuse-linker-plugin is not supported in this configuration}"
981 /* Linker command line options for -fsanitize= early on the command line. */
982 #ifndef SANITIZER_EARLY_SPEC
983 #define SANITIZER_EARLY_SPEC "\
984 %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
985 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
986 %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}}"
989 /* Linker command line options for -fsanitize= late on the command line. */
990 #ifndef SANITIZER_SPEC
991 #define SANITIZER_SPEC "\
992 %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
993 %{static:%ecannot specify -static with -fsanitize=address}}\
994 %{%:sanitize(thread):" LIBTSAN_SPEC "\
995 %{static:%ecannot specify -static with -fsanitize=thread}}\
996 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
997 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}}"
1000 #ifndef POST_LINK_SPEC
1001 #define POST_LINK_SPEC ""
1004 /* This is the spec to use, once the code for creating the vtable
1005 verification runtime library, libvtv.so, has been created. Currently
1006 the vtable verification runtime functions are in libstdc++, so we use
1007 the spec just below this one. */
1008 #ifndef VTABLE_VERIFICATION_SPEC
1009 #if ENABLE_VTABLE_VERIFY
1010 #define VTABLE_VERIFICATION_SPEC "\
1011 %{!nostdlib:%{!r:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
1012 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}}"
1014 #define VTABLE_VERIFICATION_SPEC "\
1015 %{fvtable-verify=none:} \
1016 %{fvtable-verify=std: \
1017 %e-fvtable-verify=std is not supported in this configuration} \
1018 %{fvtable-verify=preinit: \
1019 %e-fvtable-verify=preinit is not supported in this configuration}"
1023 /* -u* was put back because both BSD and SysV seem to support it. */
1024 /* %{static|no-pie|static-pie:} simply prevents an error message:
1025 1. If the target machine doesn't handle -static.
1026 2. If PIE isn't enabled by default.
1027 3. If the target machine doesn't handle -static-pie.
1029 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
1030 scripts which exist in user specified directories, or in standard
1032 /* We pass any -flto flags on to the linker, which is expected
1033 to understand them. In practice, this means it had better be collect2. */
1034 /* %{e*} includes -export-dynamic; see comment in common.opt. */
1035 #ifndef LINK_COMMAND_SPEC
1036 #define LINK_COMMAND_SPEC "\
1037 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
1040 "%{flto|flto=*:%<fcompare-debug*} \
1041 %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
1042 "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
1043 "%X %{o*} %{e*} %{N} %{n} %{r}\
1044 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
1045 %{static|no-pie|static-pie:} %@{L*} %(mfwrap) %(link_libgcc) " \
1046 VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o "" \
1047 %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
1048 %:include(libgomp.spec)%(link_gomp)}\
1049 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
1050 %(mflib) " STACK_SPLIT_SPEC "\
1051 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
1052 %{!nostdlib:%{!r:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}}\
1053 %{!nostdlib:%{!r:%{!nostartfiles:%E}}} %{T*} \n%(post_link) }}}}}}"
1056 #ifndef LINK_LIBGCC_SPEC
1057 /* Generate -L options for startfile prefix list. */
1058 # define LINK_LIBGCC_SPEC "%D"
1061 #ifndef STARTFILE_PREFIX_SPEC
1062 # define STARTFILE_PREFIX_SPEC ""
1065 #ifndef SYSROOT_SPEC
1066 # define SYSROOT_SPEC "--sysroot=%R"
1069 #ifndef SYSROOT_SUFFIX_SPEC
1070 # define SYSROOT_SUFFIX_SPEC ""
1073 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
1074 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
1077 static const char *asm_debug
= ASM_DEBUG_SPEC
;
1078 static const char *cpp_spec
= CPP_SPEC
;
1079 static const char *cc1_spec
= CC1_SPEC
;
1080 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
1081 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
1082 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
1083 static const char *asm_spec
= ASM_SPEC
;
1084 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
1085 static const char *link_spec
= LINK_SPEC
;
1086 static const char *lib_spec
= LIB_SPEC
;
1087 static const char *link_gomp_spec
= "";
1088 static const char *libgcc_spec
= LIBGCC_SPEC
;
1089 static const char *endfile_spec
= ENDFILE_SPEC
;
1090 static const char *startfile_spec
= STARTFILE_SPEC
;
1091 static const char *linker_name_spec
= LINKER_NAME
;
1092 static const char *linker_plugin_file_spec
= "";
1093 static const char *lto_wrapper_spec
= "";
1094 static const char *lto_gcc_spec
= "";
1095 static const char *post_link_spec
= POST_LINK_SPEC
;
1096 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
1097 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
1098 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
1099 static const char *sysroot_spec
= SYSROOT_SPEC
;
1100 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
1101 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
1102 static const char *self_spec
= "";
1104 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
1105 There should be no need to override these in target dependent files,
1106 but we need to copy them to the specs file so that newer versions
1107 of the GCC driver can correctly drive older tool chains with the
1108 appropriate -B options. */
1110 /* When cpplib handles traditional preprocessing, get rid of this, and
1111 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
1112 that we default the front end language better. */
1113 static const char *trad_capable_cpp
=
1114 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
1116 /* We don't wrap .d files in %W{} since a missing .d file, and
1117 therefore no dependency entry, confuses make into thinking a .o
1118 file that happens to exist is up-to-date. */
1119 static const char *cpp_unique_options
=
1120 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %@{I*&F*} %{P} %I\
1121 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
1122 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
1123 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
1124 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
1125 %{remap} %{g3|ggdb3|gstabs3|gxcoff3|gvms3:-dD}\
1126 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1127 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
1130 /* This contains cpp options which are common with cc1_options and are passed
1131 only when preprocessing only to avoid duplication. We pass the cc1 spec
1132 options to the preprocessor so that it the cc1 spec may manipulate
1133 options used to set target flags. Those special target flags settings may
1134 in turn cause preprocessor symbols to be defined specially. */
1135 static const char *cpp_options
=
1136 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
1137 %{f*} %{g*:%{%:debug-level-gt(0):%{g*}\
1138 %{!fno-working-directory:-fworking-directory}}} %{O*}\
1139 %{undef} %{save-temps*:-fpch-preprocess}";
1141 /* This contains cpp options which are not passed when the preprocessor
1142 output will be used by another program. */
1143 static const char *cpp_debug_options
= "%{d*}";
1145 /* NB: This is shared amongst all front-ends, except for Ada. */
1146 static const char *cc1_options
=
1147 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
1148 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1149 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
1150 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
1151 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
1152 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
1153 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
1154 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
1155 %{-target-help:--target-help}\
1156 %{-version:--version}\
1157 %{-help=*:--help=%*}\
1158 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
1159 %{fsyntax-only:-o %j} %{-param*}\
1160 %{coverage:-fprofile-arcs -ftest-coverage}\
1161 %{fprofile-arcs|fprofile-generate*|coverage:\
1162 %{!fprofile-update=single:\
1163 %{pthread:-fprofile-update=prefer-atomic}}}";
1165 static const char *asm_options
=
1166 "%{-target-help:%:print-asm-header()} "
1168 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
1169 to the assembler equivalents. */
1170 "%{v} %{w:-W} %{I*} "
1172 ASM_COMPRESS_DEBUG_SPEC
1173 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
1175 static const char *invoke_as
=
1176 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1178 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1179 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
1183 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1184 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
1188 /* Some compilers have limits on line lengths, and the multilib_select
1189 and/or multilib_matches strings can be very long, so we build them at
1191 static struct obstack multilib_obstack
;
1192 static const char *multilib_select
;
1193 static const char *multilib_matches
;
1194 static const char *multilib_defaults
;
1195 static const char *multilib_exclusions
;
1196 static const char *multilib_reuse
;
1198 /* Check whether a particular argument is a default argument. */
1200 #ifndef MULTILIB_DEFAULTS
1201 #define MULTILIB_DEFAULTS { "" }
1204 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
1206 #ifndef DRIVER_SELF_SPECS
1207 #define DRIVER_SELF_SPECS ""
1210 /* Linking to libgomp implies pthreads. This is particularly important
1211 for targets that use different start files and suchlike. */
1212 #ifndef GOMP_SELF_SPECS
1213 #define GOMP_SELF_SPECS \
1214 "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \
1218 /* Likewise for -fgnu-tm. */
1219 #ifndef GTM_SELF_SPECS
1220 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1223 static const char *const driver_self_specs
[] = {
1224 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1225 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
1228 #ifndef OPTION_DEFAULT_SPECS
1229 #define OPTION_DEFAULT_SPECS { "", "" }
1238 static const struct default_spec
1239 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1243 struct user_specs
*next
;
1244 const char *filename
;
1247 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1250 /* Record the mapping from file suffixes for compilation specs. */
1254 const char *suffix
; /* Use this compiler for input files
1255 whose names end in this suffix. */
1257 const char *spec
; /* To use this compiler, run this spec. */
1259 const char *cpp_spec
; /* If non-NULL, substitute this spec
1260 for `%C', rather than the usual
1262 int combinable
; /* If nonzero, compiler can deal with
1263 multiple source files at once (IMA). */
1264 int needs_preprocessing
; /* If nonzero, source files need to
1265 be run through a preprocessor. */
1268 /* Pointer to a vector of `struct compiler' that gives the spec for
1269 compiling a file, based on its suffix.
1270 A file that does not end in any of these suffixes will be passed
1271 unchanged to the loader and nothing else will be done to it.
1273 An entry containing two 0s is used to terminate the vector.
1275 If multiple entries match a file, the last matching one is used. */
1277 static struct compiler
*compilers
;
1279 /* Number of entries in `compilers', not counting the null terminator. */
1281 static int n_compilers
;
1283 /* The default list of file name suffixes and their compilation specs. */
1285 static const struct compiler default_compilers
[] =
1287 /* Add lists of suffixes of known languages here. If those languages
1288 were not present when we built the driver, we will hit these copies
1289 and be given a more meaningful error than "file not used since
1290 linking is not done". */
1291 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1292 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1293 {".mii", "#Objective-C++", 0, 0, 0},
1294 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1295 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1296 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1297 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1298 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1299 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1300 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1301 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1302 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1303 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1304 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1305 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1306 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1307 {".r", "#Ratfor", 0, 0, 0},
1308 {".go", "#Go", 0, 1, 0},
1309 {".d", "#D", 0, 1, 0}, {".dd", "#D", 0, 1, 0}, {".di", "#D", 0, 1, 0},
1310 /* Next come the entries for C. */
1311 {".c", "@c", 0, 0, 1},
1313 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1314 external preprocessor if -save-temps is given. */
1315 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1318 %eGNU C no longer supports -traditional without -E}\
1319 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1320 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1321 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1323 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1324 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1325 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1327 "%{!E:%e-E or -x required when input is from standard input}\
1328 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1329 {".h", "@c-header", 0, 0, 0},
1331 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1332 external preprocessor if -save-temps is given. */
1333 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1335 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1336 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1337 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1339 %{!fsyntax-only:%{!S:-o %g.s} \
1340 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1341 %W{o*:--output-pch=%*}}%V}}\
1342 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1343 cc1 %(cpp_unique_options) %(cc1_options)\
1344 %{!fsyntax-only:%{!S:-o %g.s} \
1345 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1346 %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
1347 {".i", "@cpp-output", 0, 0, 0},
1349 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1350 {".s", "@assembler", 0, 0, 0},
1352 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1353 {".sx", "@assembler-with-cpp", 0, 0, 0},
1354 {".S", "@assembler-with-cpp", 0, 0, 0},
1355 {"@assembler-with-cpp",
1356 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
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) %|.s %A }}}}"
1362 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1363 %{E|M|MM:%(cpp_debug_options)}\
1364 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1365 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1370 /* Mark end of table. */
1374 /* Number of elements in default_compilers, not counting the terminator. */
1376 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1378 typedef char *char_p
; /* For DEF_VEC_P. */
1380 /* A vector of options to give to the linker.
1381 These options are accumulated by %x,
1382 and substituted into the linker command with %X. */
1383 static vec
<char_p
> linker_options
;
1385 /* A vector of options to give to the assembler.
1386 These options are accumulated by -Wa,
1387 and substituted into the assembler command with %Y. */
1388 static vec
<char_p
> assembler_options
;
1390 /* A vector of options to give to the preprocessor.
1391 These options are accumulated by -Wp,
1392 and substituted into the preprocessor command with %Z. */
1393 static vec
<char_p
> preprocessor_options
;
1396 skip_whitespace (char *p
)
1400 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1401 be considered whitespace. */
1402 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1404 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1418 /* Structures to keep track of prefixes to try when looking for files. */
1422 const char *prefix
; /* String to prepend to the path. */
1423 struct prefix_list
*next
; /* Next in linked list. */
1424 int require_machine_suffix
; /* Don't use without machine_suffix. */
1425 /* 2 means try both machine_suffix and just_machine_suffix. */
1426 int priority
; /* Sort key - priority within list. */
1427 int os_multilib
; /* 1 if OS multilib scheme should be used,
1428 0 for GCC multilib scheme. */
1433 struct prefix_list
*plist
; /* List of prefixes to try */
1434 int max_len
; /* Max length of a prefix in PLIST */
1435 const char *name
; /* Name of this list (used in config stuff) */
1438 /* List of prefixes to try when looking for executables. */
1440 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1442 /* List of prefixes to try when looking for startup (crt0) files. */
1444 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1446 /* List of prefixes to try when looking for include files. */
1448 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1450 /* Suffix to attach to directories searched for commands.
1451 This looks like `MACHINE/VERSION/'. */
1453 static const char *machine_suffix
= 0;
1455 /* Suffix to attach to directories searched for commands.
1456 This is just `MACHINE/'. */
1458 static const char *just_machine_suffix
= 0;
1460 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1462 static const char *gcc_exec_prefix
;
1464 /* Adjusted value of standard_libexec_prefix. */
1466 static const char *gcc_libexec_prefix
;
1468 /* Default prefixes to attach to command names. */
1470 #ifndef STANDARD_STARTFILE_PREFIX_1
1471 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1473 #ifndef STANDARD_STARTFILE_PREFIX_2
1474 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1477 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1478 #undef MD_EXEC_PREFIX
1479 #undef MD_STARTFILE_PREFIX
1480 #undef MD_STARTFILE_PREFIX_1
1483 /* If no prefixes defined, use the null string, which will disable them. */
1484 #ifndef MD_EXEC_PREFIX
1485 #define MD_EXEC_PREFIX ""
1487 #ifndef MD_STARTFILE_PREFIX
1488 #define MD_STARTFILE_PREFIX ""
1490 #ifndef MD_STARTFILE_PREFIX_1
1491 #define MD_STARTFILE_PREFIX_1 ""
1494 /* These directories are locations set at configure-time based on the
1495 --prefix option provided to configure. Their initializers are
1496 defined in Makefile.in. These paths are not *directly* used when
1497 gcc_exec_prefix is set because, in that case, we know where the
1498 compiler has been installed, and use paths relative to that
1499 location instead. */
1500 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1501 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1502 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1503 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1505 /* For native compilers, these are well-known paths containing
1506 components that may be provided by the system. For cross
1507 compilers, these paths are not used. */
1508 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1509 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1510 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1511 static const char *const standard_startfile_prefix_1
1512 = STANDARD_STARTFILE_PREFIX_1
;
1513 static const char *const standard_startfile_prefix_2
1514 = STANDARD_STARTFILE_PREFIX_2
;
1516 /* A relative path to be used in finding the location of tools
1517 relative to the driver. */
1518 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1520 /* A prefix to be used when this is an accelerator compiler. */
1521 static const char *const accel_dir_suffix
= ACCEL_DIR_SUFFIX
;
1523 /* Subdirectory to use for locating libraries. Set by
1524 set_multilib_dir based on the compilation options. */
1526 static const char *multilib_dir
;
1528 /* Subdirectory to use for locating libraries in OS conventions. Set by
1529 set_multilib_dir based on the compilation options. */
1531 static const char *multilib_os_dir
;
1533 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1534 set_multilib_dir based on the compilation options. */
1536 static const char *multiarch_dir
;
1538 /* Structure to keep track of the specs that have been defined so far.
1539 These are accessed using %(specname) in a compiler or link
1544 /* The following 2 fields must be first */
1545 /* to allow EXTRA_SPECS to be initialized */
1546 const char *name
; /* name of the spec. */
1547 const char *ptr
; /* available ptr if no static pointer */
1549 /* The following fields are not initialized */
1550 /* by EXTRA_SPECS */
1551 const char **ptr_spec
; /* pointer to the spec itself. */
1552 struct spec_list
*next
; /* Next spec in linked list. */
1553 int name_len
; /* length of the name */
1554 bool user_p
; /* whether string come from file spec. */
1555 bool alloc_p
; /* whether string was allocated */
1556 const char *default_ptr
; /* The default value of *ptr_spec. */
1559 #define INIT_STATIC_SPEC(NAME,PTR) \
1560 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false, \
1563 /* List of statically defined specs. */
1564 static struct spec_list static_specs
[] =
1566 INIT_STATIC_SPEC ("asm", &asm_spec
),
1567 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1568 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1569 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1570 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1571 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1572 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1573 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1574 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1575 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1576 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1577 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1578 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1579 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1580 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1581 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1582 INIT_STATIC_SPEC ("link", &link_spec
),
1583 INIT_STATIC_SPEC ("lib", &lib_spec
),
1584 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1585 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1586 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1587 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1588 INIT_STATIC_SPEC ("version", &compiler_version
),
1589 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1590 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1591 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1592 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1593 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1594 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1595 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1596 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1597 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1598 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1599 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1600 INIT_STATIC_SPEC ("post_link", &post_link_spec
),
1601 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1602 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1603 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1604 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1605 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1606 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1607 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1608 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1609 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1612 #ifdef EXTRA_SPECS /* additional specs needed */
1613 /* Structure to keep track of just the first two args of a spec_list.
1614 That is all that the EXTRA_SPECS macro gives us. */
1617 const char *const name
;
1618 const char *const ptr
;
1621 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1622 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1625 /* List of dynamically allocates specs that have been defined so far. */
1627 static struct spec_list
*specs
= (struct spec_list
*) 0;
1629 /* List of static spec functions. */
1631 static const struct spec_function static_spec_functions
[] =
1633 { "getenv", getenv_spec_function
},
1634 { "if-exists", if_exists_spec_function
},
1635 { "if-exists-else", if_exists_else_spec_function
},
1636 { "sanitize", sanitize_spec_function
},
1637 { "replace-outfile", replace_outfile_spec_function
},
1638 { "remove-outfile", remove_outfile_spec_function
},
1639 { "version-compare", version_compare_spec_function
},
1640 { "include", include_spec_function
},
1641 { "find-file", find_file_spec_function
},
1642 { "find-plugindir", find_plugindir_spec_function
},
1643 { "print-asm-header", print_asm_header_spec_function
},
1644 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1645 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1646 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1647 { "pass-through-libs", pass_through_libs_spec_func
},
1648 { "replace-extension", replace_extension_spec_func
},
1649 { "gt", greater_than_spec_func
},
1650 { "debug-level-gt", debug_level_greater_than_spec_func
},
1651 { "fortran-preinclude-file", find_fortran_preinclude_file
},
1652 #ifdef EXTRA_SPEC_FUNCTIONS
1653 EXTRA_SPEC_FUNCTIONS
1658 static int processing_spec_function
;
1660 /* Add appropriate libgcc specs to OBSTACK, taking into account
1661 various permutations of -shared-libgcc, -shared, and such. */
1663 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1665 #ifndef USE_LD_AS_NEEDED
1666 #define USE_LD_AS_NEEDED 0
1670 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1671 const char *static_name
, const char *eh_name
)
1675 #if USE_LD_AS_NEEDED
1676 buf
= concat ("%{static|static-libgcc|static-pie:", static_name
, " ", eh_name
, "}"
1677 "%{!static:%{!static-libgcc:%{!static-pie:"
1678 "%{!shared-libgcc:",
1679 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1680 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1683 shared_name
, "%{!shared: ", static_name
, "}"
1686 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1687 "%{!static:%{!static-libgcc:"
1689 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1690 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1694 "%{shared-libgcc:", shared_name
, "}"
1695 "%{!shared-libgcc:", static_name
, "}"
1698 "%{shared:", shared_name
, "}"
1703 obstack_grow (obstack
, buf
, strlen (buf
));
1706 #endif /* ENABLE_SHARED_LIBGCC */
1708 /* Initialize the specs lookup routines. */
1713 struct spec_list
*next
= (struct spec_list
*) 0;
1714 struct spec_list
*sl
= (struct spec_list
*) 0;
1718 return; /* Already initialized. */
1721 fnotice (stderr
, "Using built-in specs.\n");
1724 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1726 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1728 sl
= &extra_specs
[i
];
1729 sl
->name
= extra_specs_1
[i
].name
;
1730 sl
->ptr
= extra_specs_1
[i
].ptr
;
1732 sl
->name_len
= strlen (sl
->name
);
1733 sl
->ptr_spec
= &sl
->ptr
;
1734 gcc_assert (sl
->ptr_spec
!= NULL
);
1735 sl
->default_ptr
= sl
->ptr
;
1740 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1742 sl
= &static_specs
[i
];
1747 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1748 /* ??? If neither -shared-libgcc nor --static-libgcc was
1749 seen, then we should be making an educated guess. Some proposed
1750 heuristics for ELF include:
1752 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1753 program will be doing dynamic loading, which will likely
1754 need the shared libgcc.
1756 (2) If "-ldl", then it's also a fair bet that we're doing
1759 (3) For each ET_DYN we're linking against (either through -lfoo
1760 or /some/path/foo.so), check to see whether it or one of
1761 its dependencies depends on a shared libgcc.
1765 If the runtime is fixed to look for program headers instead
1766 of calling __register_frame_info at all, for each object,
1767 use the shared libgcc if any EH symbol referenced.
1769 If crtstuff is fixed to not invoke __register_frame_info
1770 automatically, for each object, use the shared libgcc if
1771 any non-empty unwind section found.
1773 Doing any of this probably requires invoking an external program to
1774 do the actual object file scanning. */
1776 const char *p
= libgcc_spec
;
1779 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1780 when given the proper command line arguments. */
1783 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1785 init_gcc_specs (&obstack
,
1787 #ifdef USE_LIBUNWIND_EXCEPTIONS
1793 #ifdef USE_LIBUNWIND_EXCEPTIONS
1794 # ifdef HAVE_LD_STATIC_DYNAMIC
1795 " %{!static:%{!static-pie:" LD_STATIC_OPTION
"}} -lunwind"
1796 " %{!static:%{!static-pie:" LD_DYNAMIC_OPTION
"}}"
1806 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1808 /* Ug. We don't know shared library extensions. Hope that
1809 systems that use this form don't do shared libraries. */
1810 init_gcc_specs (&obstack
,
1814 #ifdef USE_LIBUNWIND_EXCEPTIONS
1823 obstack_1grow (&obstack
, *p
);
1824 in_sep
= (*p
== ' ');
1829 obstack_1grow (&obstack
, '\0');
1830 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1833 #ifdef USE_AS_TRADITIONAL_FORMAT
1834 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1836 static const char tf
[] = "--traditional-format ";
1837 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1838 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1839 asm_spec
= XOBFINISH (&obstack
, const char *);
1843 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1844 defined LINKER_HASH_STYLE
1845 # ifdef LINK_BUILDID_SPEC
1846 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1847 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1849 # ifdef LINK_EH_SPEC
1850 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1851 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1853 # ifdef LINKER_HASH_STYLE
1854 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1857 static const char hash_style
[] = "--hash-style=";
1858 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1859 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1860 obstack_1grow (&obstack
, ' ');
1863 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1864 link_spec
= XOBFINISH (&obstack
, const char *);
1870 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1871 removed; If the spec starts with a + then SPEC is added to the end of the
1875 set_spec (const char *name
, const char *spec
, bool user_p
)
1877 struct spec_list
*sl
;
1878 const char *old_spec
;
1879 int name_len
= strlen (name
);
1882 /* If this is the first call, initialize the statically allocated specs. */
1885 struct spec_list
*next
= (struct spec_list
*) 0;
1886 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1888 sl
= &static_specs
[i
];
1895 /* See if the spec already exists. */
1896 for (sl
= specs
; sl
; sl
= sl
->next
)
1897 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1902 /* Not found - make it. */
1903 sl
= XNEW (struct spec_list
);
1904 sl
->name
= xstrdup (name
);
1905 sl
->name_len
= name_len
;
1906 sl
->ptr_spec
= &sl
->ptr
;
1908 *(sl
->ptr_spec
) = "";
1910 sl
->default_ptr
= NULL
;
1914 old_spec
= *(sl
->ptr_spec
);
1915 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1916 ? concat (old_spec
, spec
+ 1, NULL
)
1921 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1924 /* Free the old spec. */
1925 if (old_spec
&& sl
->alloc_p
)
1926 free (CONST_CAST (char *, old_spec
));
1928 sl
->user_p
= user_p
;
1932 /* Accumulate a command (program name and args), and run it. */
1934 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1936 /* Vector of pointers to arguments in the current line of specifications. */
1937 static vec
<const_char_p
> argbuf
;
1939 /* Likewise, but for the current @file. */
1940 static vec
<const_char_p
> at_file_argbuf
;
1942 /* Whether an @file is currently open. */
1943 static bool in_at_file
= false;
1945 /* Were the options -c, -S or -E passed. */
1946 static int have_c
= 0;
1948 /* Was the option -o passed. */
1949 static int have_o
= 0;
1951 /* Was the option -E passed. */
1952 static int have_E
= 0;
1954 /* Pointer to output file name passed in with -o. */
1955 static const char *output_file
= 0;
1957 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1958 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1961 static struct temp_name
{
1962 const char *suffix
; /* suffix associated with the code. */
1963 int length
; /* strlen (suffix). */
1964 int unique
; /* Indicates whether %g or %u/%U was used. */
1965 const char *filename
; /* associated filename. */
1966 int filename_length
; /* strlen (filename). */
1967 struct temp_name
*next
;
1970 /* Number of commands executed so far. */
1972 static int execution_count
;
1974 /* Number of commands that exited with a signal. */
1976 static int signal_count
;
1978 /* Allocate the argument vector. */
1984 at_file_argbuf
.create (10);
1987 /* Clear out the vector of arguments (after a command is executed). */
1992 argbuf
.truncate (0);
1993 at_file_argbuf
.truncate (0);
1996 /* Add one argument to the vector at the end.
1997 This is done when a space is seen or at the end of the line.
1998 If DELETE_ALWAYS is nonzero, the arg is a filename
1999 and the file should be deleted eventually.
2000 If DELETE_FAILURE is nonzero, the arg is a filename
2001 and the file should be deleted if this compilation fails. */
2004 store_arg (const char *arg
, int delete_always
, int delete_failure
)
2007 at_file_argbuf
.safe_push (arg
);
2009 argbuf
.safe_push (arg
);
2011 if (delete_always
|| delete_failure
)
2014 /* If the temporary file we should delete is specified as
2015 part of a joined argument extract the filename. */
2017 && (p
= strrchr (arg
, '=')))
2019 record_temp_file (arg
, delete_always
, delete_failure
);
2023 /* Open a temporary @file into which subsequent arguments will be stored. */
2029 fatal_error (input_location
, "cannot open nested response file");
2034 /* Close the temporary @file and add @file to the argument list. */
2037 close_at_file (void)
2040 fatal_error (input_location
, "cannot close nonexistent response file");
2044 const unsigned int n_args
= at_file_argbuf
.length ();
2048 char **argv
= (char **) alloca (sizeof (char *) * (n_args
+ 1));
2049 char *temp_file
= make_temp_file ("");
2050 char *at_argument
= concat ("@", temp_file
, NULL
);
2051 FILE *f
= fopen (temp_file
, "w");
2055 /* Copy the strings over. */
2056 for (i
= 0; i
< n_args
; i
++)
2057 argv
[i
] = CONST_CAST (char *, at_file_argbuf
[i
]);
2060 at_file_argbuf
.truncate (0);
2063 fatal_error (input_location
, "could not open temporary response file %s",
2066 status
= writeargv (argv
, f
);
2069 fatal_error (input_location
,
2070 "could not write to temporary response file %s",
2073 status
= fclose (f
);
2076 fatal_error (input_location
, "could not close temporary response file %s",
2079 store_arg (at_argument
, 0, 0);
2081 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
2084 /* Load specs from a file name named FILENAME, replacing occurrences of
2085 various different types of line-endings, \r\n, \n\r and just \r, with
2089 load_specs (const char *filename
)
2093 struct stat statbuf
;
2100 fnotice (stderr
, "Reading specs from %s\n", filename
);
2102 /* Open and stat the file. */
2103 desc
= open (filename
, O_RDONLY
, 0);
2107 /* This leaves DESC open, but the OS will save us. */
2108 fatal_error (input_location
, "cannot read spec file %qs: %m", filename
);
2111 if (stat (filename
, &statbuf
) < 0)
2114 /* Read contents of file into BUFFER. */
2115 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2116 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2119 buffer
[readlen
] = 0;
2122 specs
= XNEWVEC (char, readlen
+ 1);
2124 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2130 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2132 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2146 /* Read compilation specs from a file named FILENAME,
2147 replacing the default ones.
2149 A suffix which starts with `*' is a definition for
2150 one of the machine-specific sub-specs. The "suffix" should be
2151 *asm, *cc1, *cpp, *link, *startfile, etc.
2152 The corresponding spec is stored in asm_spec, etc.,
2153 rather than in the `compilers' vector.
2155 Anything invalid in the file is a fatal error. */
2158 read_specs (const char *filename
, bool main_p
, bool user_p
)
2163 buffer
= load_specs (filename
);
2165 /* Scan BUFFER for specs, putting them in the vector. */
2171 char *in
, *out
, *p1
, *p2
, *p3
;
2173 /* Advance P in BUFFER to the next nonblank nocomment line. */
2174 p
= skip_whitespace (p
);
2178 /* Is this a special command that starts with '%'? */
2179 /* Don't allow this for the main specs file, since it would
2180 encourage people to overwrite it. */
2181 if (*p
== '%' && !main_p
)
2184 while (*p
&& *p
!= '\n')
2190 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2191 && (p1
[sizeof "%include" - 1] == ' '
2192 || p1
[sizeof "%include" - 1] == '\t'))
2196 p1
+= sizeof ("%include");
2197 while (*p1
== ' ' || *p1
== '\t')
2200 if (*p1
++ != '<' || p
[-2] != '>')
2201 fatal_error (input_location
,
2202 "specs %%include syntax malformed after "
2204 (long) (p1
- buffer
+ 1));
2207 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2208 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
2211 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2212 && (p1
[sizeof "%include_noerr" - 1] == ' '
2213 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2217 p1
+= sizeof "%include_noerr";
2218 while (*p1
== ' ' || *p1
== '\t')
2221 if (*p1
++ != '<' || p
[-2] != '>')
2222 fatal_error (input_location
,
2223 "specs %%include syntax malformed after "
2225 (long) (p1
- buffer
+ 1));
2228 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2230 read_specs (new_filename
, false, user_p
);
2231 else if (verbose_flag
)
2232 fnotice (stderr
, "could not find specs file %s\n", p1
);
2235 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2236 && (p1
[sizeof "%rename" - 1] == ' '
2237 || p1
[sizeof "%rename" - 1] == '\t'))
2240 struct spec_list
*sl
;
2241 struct spec_list
*newsl
;
2243 /* Get original name. */
2244 p1
+= sizeof "%rename";
2245 while (*p1
== ' ' || *p1
== '\t')
2248 if (! ISALPHA ((unsigned char) *p1
))
2249 fatal_error (input_location
,
2250 "specs %%rename syntax malformed after "
2252 (long) (p1
- buffer
));
2255 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2258 if (*p2
!= ' ' && *p2
!= '\t')
2259 fatal_error (input_location
,
2260 "specs %%rename syntax malformed after "
2262 (long) (p2
- buffer
));
2266 while (*p2
== ' ' || *p2
== '\t')
2269 if (! ISALPHA ((unsigned char) *p2
))
2270 fatal_error (input_location
,
2271 "specs %%rename syntax malformed after "
2273 (long) (p2
- buffer
));
2275 /* Get new spec name. */
2277 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2281 fatal_error (input_location
,
2282 "specs %%rename syntax malformed after "
2284 (long) (p3
- buffer
));
2287 for (sl
= specs
; sl
; sl
= sl
->next
)
2288 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2292 fatal_error (input_location
,
2293 "specs %s spec was not found to be renamed", p1
);
2295 if (strcmp (p1
, p2
) == 0)
2298 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2299 if (strcmp (newsl
->name
, p2
) == 0)
2300 fatal_error (input_location
,
2301 "%s: attempt to rename spec %qs to "
2302 "already defined spec %qs",
2307 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
2309 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2313 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2315 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2317 *(sl
->ptr_spec
) = "";
2322 fatal_error (input_location
,
2323 "specs unknown %% command after %ld characters",
2324 (long) (p1
- buffer
));
2327 /* Find the colon that should end the suffix. */
2329 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2332 /* The colon shouldn't be missing. */
2334 fatal_error (input_location
,
2335 "specs file malformed after %ld characters",
2336 (long) (p1
- buffer
));
2338 /* Skip back over trailing whitespace. */
2340 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2343 /* Copy the suffix to a string. */
2344 suffix
= save_string (p
, p2
- p
);
2345 /* Find the next line. */
2346 p
= skip_whitespace (p1
+ 1);
2348 fatal_error (input_location
,
2349 "specs file malformed after %ld characters",
2350 (long) (p
- buffer
));
2353 /* Find next blank line or end of string. */
2354 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2357 /* Specs end at the blank line and do not include the newline. */
2358 spec
= save_string (p
, p1
- p
);
2361 /* Delete backslash-newline sequences from the spec. */
2366 if (in
[0] == '\\' && in
[1] == '\n')
2368 else if (in
[0] == '#')
2369 while (*in
&& *in
!= '\n')
2377 if (suffix
[0] == '*')
2379 if (! strcmp (suffix
, "*link_command"))
2380 link_command_spec
= spec
;
2383 set_spec (suffix
+ 1, spec
, user_p
);
2389 /* Add this pair to the vector. */
2391 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2393 compilers
[n_compilers
].suffix
= suffix
;
2394 compilers
[n_compilers
].spec
= spec
;
2396 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2400 link_command_spec
= spec
;
2403 if (link_command_spec
== 0)
2404 fatal_error (input_location
, "spec file has no spec for linking");
2406 XDELETEVEC (buffer
);
2409 /* Record the names of temporary files we tell compilers to write,
2410 and delete them at the end of the run. */
2412 /* This is the common prefix we use to make temp file names.
2413 It is chosen once for each run of this program.
2414 It is substituted into a spec by %g or %j.
2415 Thus, all temp file names contain this prefix.
2416 In practice, all temp file names start with this prefix.
2418 This prefix comes from the envvar TMPDIR if it is defined;
2419 otherwise, from the P_tmpdir macro if that is defined;
2420 otherwise, in /usr/tmp or /tmp;
2421 or finally the current directory if all else fails. */
2423 static const char *temp_filename
;
2425 /* Length of the prefix. */
2427 static int temp_filename_length
;
2429 /* Define the list of temporary files to delete. */
2434 struct temp_file
*next
;
2437 /* Queue of files to delete on success or failure of compilation. */
2438 static struct temp_file
*always_delete_queue
;
2439 /* Queue of files to delete on failure of compilation. */
2440 static struct temp_file
*failure_delete_queue
;
2442 /* Record FILENAME as a file to be deleted automatically.
2443 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2444 otherwise delete it in any case.
2445 FAIL_DELETE nonzero means delete it if a compilation step fails;
2446 otherwise delete it in any case. */
2449 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2451 char *const name
= xstrdup (filename
);
2455 struct temp_file
*temp
;
2456 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2457 if (! filename_cmp (name
, temp
->name
))
2463 temp
= XNEW (struct temp_file
);
2464 temp
->next
= always_delete_queue
;
2466 always_delete_queue
= temp
;
2473 struct temp_file
*temp
;
2474 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2475 if (! filename_cmp (name
, temp
->name
))
2481 temp
= XNEW (struct temp_file
);
2482 temp
->next
= failure_delete_queue
;
2484 failure_delete_queue
= temp
;
2490 /* Delete all the temporary files whose names we previously recorded. */
2492 #ifndef DELETE_IF_ORDINARY
2493 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2496 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2497 if (unlink (NAME) < 0) \
2499 error ("%s: %m", (NAME)); \
2504 delete_if_ordinary (const char *name
)
2510 printf ("Delete %s? (y or n) ", name
);
2514 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2517 if (i
== 'y' || i
== 'Y')
2519 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2523 delete_temp_files (void)
2525 struct temp_file
*temp
;
2527 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2528 delete_if_ordinary (temp
->name
);
2529 always_delete_queue
= 0;
2532 /* Delete all the files to be deleted on error. */
2535 delete_failure_queue (void)
2537 struct temp_file
*temp
;
2539 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2540 delete_if_ordinary (temp
->name
);
2544 clear_failure_queue (void)
2546 failure_delete_queue
= 0;
2549 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2551 If DO_MULTI is true iterate over the paths twice, first with multilib
2552 suffix then without, otherwise iterate over the paths once without
2553 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2554 to avoid visiting the same path twice, but we could do better. For
2555 instance, /usr/lib/../lib is considered different from /usr/lib.
2556 At least EXTRA_SPACE chars past the end of the path passed to
2557 CALLBACK are available for use by the callback.
2558 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2560 Returns the value returned by CALLBACK. */
2563 for_each_path (const struct path_prefix
*paths
,
2566 void *(*callback
) (char *, void *),
2567 void *callback_info
)
2569 struct prefix_list
*pl
;
2570 const char *multi_dir
= NULL
;
2571 const char *multi_os_dir
= NULL
;
2572 const char *multiarch_suffix
= NULL
;
2573 const char *multi_suffix
;
2574 const char *just_multi_suffix
;
2577 bool skip_multi_dir
= false;
2578 bool skip_multi_os_dir
= false;
2580 multi_suffix
= machine_suffix
;
2581 just_multi_suffix
= just_machine_suffix
;
2582 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2584 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2585 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2586 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2588 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2589 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2591 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2595 size_t multi_dir_len
= 0;
2596 size_t multi_os_dir_len
= 0;
2597 size_t multiarch_len
= 0;
2599 size_t just_suffix_len
;
2603 multi_dir_len
= strlen (multi_dir
);
2605 multi_os_dir_len
= strlen (multi_os_dir
);
2606 if (multiarch_suffix
)
2607 multiarch_len
= strlen (multiarch_suffix
);
2608 suffix_len
= strlen (multi_suffix
);
2609 just_suffix_len
= strlen (just_multi_suffix
);
2613 len
= paths
->max_len
+ extra_space
+ 1;
2614 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2615 path
= XNEWVEC (char, len
);
2618 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2620 len
= strlen (pl
->prefix
);
2621 memcpy (path
, pl
->prefix
, len
);
2623 /* Look first in MACHINE/VERSION subdirectory. */
2624 if (!skip_multi_dir
)
2626 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2627 ret
= callback (path
, callback_info
);
2632 /* Some paths are tried with just the machine (ie. target)
2633 subdir. This is used for finding as, ld, etc. */
2635 && pl
->require_machine_suffix
== 2)
2637 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2638 ret
= callback (path
, callback_info
);
2643 /* Now try the multiarch path. */
2645 && !pl
->require_machine_suffix
&& multiarch_dir
)
2647 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2648 ret
= callback (path
, callback_info
);
2653 /* Now try the base path. */
2654 if (!pl
->require_machine_suffix
2655 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2657 const char *this_multi
;
2658 size_t this_multi_len
;
2660 if (pl
->os_multilib
)
2662 this_multi
= multi_os_dir
;
2663 this_multi_len
= multi_os_dir_len
;
2667 this_multi
= multi_dir
;
2668 this_multi_len
= multi_dir_len
;
2672 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2676 ret
= callback (path
, callback_info
);
2684 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2687 /* Run through the paths again, this time without multilibs.
2688 Don't repeat any we have already seen. */
2691 free (CONST_CAST (char *, multi_dir
));
2693 free (CONST_CAST (char *, multi_suffix
));
2694 multi_suffix
= machine_suffix
;
2695 free (CONST_CAST (char *, just_multi_suffix
));
2696 just_multi_suffix
= just_machine_suffix
;
2699 skip_multi_dir
= true;
2702 free (CONST_CAST (char *, multi_os_dir
));
2703 multi_os_dir
= NULL
;
2706 skip_multi_os_dir
= true;
2711 free (CONST_CAST (char *, multi_dir
));
2712 free (CONST_CAST (char *, multi_suffix
));
2713 free (CONST_CAST (char *, just_multi_suffix
));
2716 free (CONST_CAST (char *, multi_os_dir
));
2722 /* Callback for build_search_list. Adds path to obstack being built. */
2724 struct add_to_obstack_info
{
2731 add_to_obstack (char *path
, void *data
)
2733 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2735 if (info
->check_dir
&& !is_directory (path
, false))
2738 if (!info
->first_time
)
2739 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2741 obstack_grow (info
->ob
, path
, strlen (path
));
2743 info
->first_time
= false;
2747 /* Add or change the value of an environment variable, outputting the
2748 change to standard error if in verbose mode. */
2750 xputenv (const char *string
)
2755 /* Build a list of search directories from PATHS.
2756 PREFIX is a string to prepend to the list.
2757 If CHECK_DIR_P is true we ensure the directory exists.
2758 If DO_MULTI is true, multilib paths are output first, then
2760 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2761 It is also used by the --print-search-dirs flag. */
2764 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2765 bool check_dir
, bool do_multi
)
2767 struct add_to_obstack_info info
;
2769 info
.ob
= &collect_obstack
;
2770 info
.check_dir
= check_dir
;
2771 info
.first_time
= true;
2773 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2774 obstack_1grow (&collect_obstack
, '=');
2776 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2778 obstack_1grow (&collect_obstack
, '\0');
2779 return XOBFINISH (&collect_obstack
, char *);
2782 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2786 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2789 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2792 /* Check whether NAME can be accessed in MODE. This is like access,
2793 except that it never considers directories to be executable. */
2796 access_check (const char *name
, int mode
)
2802 if (stat (name
, &st
) < 0
2803 || S_ISDIR (st
.st_mode
))
2807 return access (name
, mode
);
2810 /* Callback for find_a_file. Appends the file name to the directory
2811 path. If the resulting file exists in the right mode, return the
2812 full pathname to the file. */
2814 struct file_at_path_info
{
2823 file_at_path (char *path
, void *data
)
2825 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2826 size_t len
= strlen (path
);
2828 memcpy (path
+ len
, info
->name
, info
->name_len
);
2829 len
+= info
->name_len
;
2831 /* Some systems have a suffix for executable files.
2832 So try appending that first. */
2833 if (info
->suffix_len
)
2835 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2836 if (access_check (path
, info
->mode
) == 0)
2841 if (access_check (path
, info
->mode
) == 0)
2847 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2848 access to check permissions. If DO_MULTI is true, search multilib
2849 paths then non-multilib paths, otherwise do not search multilib paths.
2850 Return 0 if not found, otherwise return its name, allocated with malloc. */
2853 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2856 struct file_at_path_info info
;
2858 #ifdef DEFAULT_ASSEMBLER
2859 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2860 return xstrdup (DEFAULT_ASSEMBLER
);
2863 #ifdef DEFAULT_LINKER
2864 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2865 return xstrdup (DEFAULT_LINKER
);
2868 /* Determine the filename to execute (special case for absolute paths). */
2870 if (IS_ABSOLUTE_PATH (name
))
2872 if (access (name
, mode
) == 0)
2873 return xstrdup (name
);
2879 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2880 info
.name_len
= strlen (info
.name
);
2881 info
.suffix_len
= strlen (info
.suffix
);
2884 return (char*) for_each_path (pprefix
, do_multi
,
2885 info
.name_len
+ info
.suffix_len
,
2886 file_at_path
, &info
);
2889 /* Ranking of prefixes in the sort list. -B prefixes are put before
2892 enum path_prefix_priority
2894 PREFIX_PRIORITY_B_OPT
,
2895 PREFIX_PRIORITY_LAST
2898 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2899 order according to PRIORITY. Within each PRIORITY, new entries are
2902 If WARN is nonzero, we will warn if no file is found
2903 through this prefix. WARN should point to an int
2904 which will be set to 1 if this entry is used.
2906 COMPONENT is the value to be passed to update_path.
2908 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2909 the complete value of machine_suffix.
2910 2 means try both machine_suffix and just_machine_suffix. */
2913 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2914 const char *component
, /* enum prefix_priority */ int priority
,
2915 int require_machine_suffix
, int os_multilib
)
2917 struct prefix_list
*pl
, **prev
;
2920 for (prev
= &pprefix
->plist
;
2921 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2922 prev
= &(*prev
)->next
)
2925 /* Keep track of the longest prefix. */
2927 prefix
= update_path (prefix
, component
);
2928 len
= strlen (prefix
);
2929 if (len
> pprefix
->max_len
)
2930 pprefix
->max_len
= len
;
2932 pl
= XNEW (struct prefix_list
);
2933 pl
->prefix
= prefix
;
2934 pl
->require_machine_suffix
= require_machine_suffix
;
2935 pl
->priority
= priority
;
2936 pl
->os_multilib
= os_multilib
;
2938 /* Insert after PREV. */
2943 /* Same as add_prefix, but prepending target_system_root to prefix. */
2944 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2946 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2947 const char *component
,
2948 /* enum prefix_priority */ int priority
,
2949 int require_machine_suffix
, int os_multilib
)
2951 if (!IS_ABSOLUTE_PATH (prefix
))
2952 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
2954 if (target_system_root
)
2956 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2957 size_t sysroot_len
= strlen (target_system_root
);
2960 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2961 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2963 if (target_sysroot_suffix
)
2964 prefix
= concat (sysroot_no_trailing_dir_separator
,
2965 target_sysroot_suffix
, prefix
, NULL
);
2967 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2969 free (sysroot_no_trailing_dir_separator
);
2971 /* We have to override this because GCC's notion of sysroot
2972 moves along with GCC. */
2976 add_prefix (pprefix
, prefix
, component
, priority
,
2977 require_machine_suffix
, os_multilib
);
2980 /* Execute the command specified by the arguments on the current line of spec.
2981 When using pipes, this includes several piped-together commands
2982 with `|' between them.
2984 Return 0 if successful, -1 if failed. */
2990 int n_commands
; /* # of command. */
2992 struct pex_obj
*pex
;
2995 const char *prog
; /* program name. */
2996 const char **argv
; /* vector of args. */
3000 struct command
*commands
; /* each command buffer with above info. */
3002 gcc_assert (!processing_spec_function
);
3006 string
= find_a_file (&exec_prefixes
,
3007 argbuf
[0], X_OK
, false);
3010 insert_wrapper (wrapper_string
);
3013 /* Count # of piped commands. */
3014 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
3015 if (strcmp (arg
, "|") == 0)
3018 /* Get storage for each command. */
3019 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
3021 /* Split argbuf into its separate piped processes,
3022 and record info about each one.
3023 Also search for the programs that are to be run. */
3025 argbuf
.safe_push (0);
3027 commands
[0].prog
= argbuf
[0]; /* first command. */
3028 commands
[0].argv
= argbuf
.address ();
3030 if (!wrapper_string
)
3032 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
3033 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
3036 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
3037 if (arg
&& strcmp (arg
, "|") == 0)
3038 { /* each command. */
3039 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
3040 fatal_error (input_location
, "-pipe not supported");
3042 argbuf
[i
] = 0; /* Termination of
3044 commands
[n_commands
].prog
= argbuf
[i
+ 1];
3045 commands
[n_commands
].argv
3046 = &(argbuf
.address ())[i
+ 1];
3047 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
3050 commands
[n_commands
].argv
[0] = string
;
3054 /* If -v, print what we are about to do, and maybe query. */
3058 /* For help listings, put a blank line between sub-processes. */
3059 if (print_help_list
)
3060 fputc ('\n', stderr
);
3062 /* Print each piped command as a separate line. */
3063 for (i
= 0; i
< n_commands
; i
++)
3065 const char *const *j
;
3067 if (verbose_only_flag
)
3069 for (j
= commands
[i
].argv
; *j
; j
++)
3072 for (p
= *j
; *p
; ++p
)
3073 if (!ISALNUM ((unsigned char) *p
)
3074 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
3078 fprintf (stderr
, " \"");
3079 for (p
= *j
; *p
; ++p
)
3081 if (*p
== '"' || *p
== '\\' || *p
== '$')
3082 fputc ('\\', stderr
);
3085 fputc ('"', stderr
);
3087 /* If it's empty, print "". */
3089 fprintf (stderr
, " \"\"");
3091 fprintf (stderr
, " %s", *j
);
3095 for (j
= commands
[i
].argv
; *j
; j
++)
3096 /* If it's empty, print "". */
3098 fprintf (stderr
, " \"\"");
3100 fprintf (stderr
, " %s", *j
);
3102 /* Print a pipe symbol after all but the last command. */
3103 if (i
+ 1 != n_commands
)
3104 fprintf (stderr
, " |");
3105 fprintf (stderr
, "\n");
3108 if (verbose_only_flag
!= 0)
3110 /* verbose_only_flag should act as if the spec was
3111 executed, so increment execution_count before
3112 returning. This prevents spurious warnings about
3113 unused linker input files, etc. */
3118 fnotice (stderr
, "\nGo ahead? (y or n) ");
3122 while (getchar () != '\n')
3125 if (i
!= 'y' && i
!= 'Y')
3130 #ifdef ENABLE_VALGRIND_CHECKING
3131 /* Run the each command through valgrind. To simplify prepending the
3132 path to valgrind and the option "-q" (for quiet operation unless
3133 something triggers), we allocate a separate argv array. */
3135 for (i
= 0; i
< n_commands
; i
++)
3141 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3144 argv
= XALLOCAVEC (const char *, argc
+ 3);
3146 argv
[0] = VALGRIND_PATH
;
3148 for (j
= 2; j
< argc
+ 2; j
++)
3149 argv
[j
] = commands
[i
].argv
[j
- 2];
3152 commands
[i
].argv
= argv
;
3153 commands
[i
].prog
= argv
[0];
3157 /* Run each piped subprocess. */
3159 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3160 ? PEX_RECORD_TIMES
: 0),
3161 progname
, temp_filename
);
3163 fatal_error (input_location
, "pex_init failed: %m");
3165 for (i
= 0; i
< n_commands
; i
++)
3169 const char *string
= commands
[i
].argv
[0];
3171 errmsg
= pex_run (pex
,
3172 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3173 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3174 string
, CONST_CAST (char **, commands
[i
].argv
),
3179 fatal_error (input_location
,
3180 err
? G_("cannot execute %qs: %s: %m")
3181 : G_("cannot execute %qs: %s"),
3185 if (i
&& string
!= commands
[i
].prog
)
3186 free (CONST_CAST (char *, string
));
3191 /* Wait for all the subprocesses to finish. */
3195 struct pex_time
*times
= NULL
;
3198 statuses
= (int *) alloca (n_commands
* sizeof (int));
3199 if (!pex_get_status (pex
, n_commands
, statuses
))
3200 fatal_error (input_location
, "failed to get exit status: %m");
3202 if (report_times
|| report_times_to_file
)
3204 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3205 if (!pex_get_times (pex
, n_commands
, times
))
3206 fatal_error (input_location
, "failed to get process times: %m");
3211 for (i
= 0; i
< n_commands
; ++i
)
3213 int status
= statuses
[i
];
3215 if (WIFSIGNALED (status
))
3216 switch (WTERMSIG (status
))
3220 /* SIGQUIT and SIGKILL are not available on MinGW. */
3227 /* The user (or environment) did something to the
3228 inferior. Making this an ICE confuses the user into
3229 thinking there's a compiler bug. Much more likely is
3230 the user or OOM killer nuked it. */
3231 fatal_error (input_location
,
3232 "%s signal terminated program %s",
3233 strsignal (WTERMSIG (status
)),
3239 /* SIGPIPE is a special case. It happens in -pipe mode
3240 when the compiler dies before the preprocessor is
3241 done, or the assembler dies before the compiler is
3242 done. There's generally been an error already, and
3243 this is just fallout. So don't generate another
3244 error unless we would otherwise have succeeded. */
3245 if (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
)
3255 /* The inferior failed to catch the signal. */
3256 internal_error_no_backtrace ("%s signal terminated program %s",
3257 strsignal (WTERMSIG (status
)),
3260 else if (WIFEXITED (status
)
3261 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3263 /* For ICEs in cc1, cc1obj, cc1plus see if it is
3264 reproducible or not. */
3267 && WEXITSTATUS (status
) == ICE_EXIT_CODE
3269 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
3270 && ! strncmp (p
+ 1, "cc1", 3))
3271 try_generate_repro (commands
[0].argv
);
3272 if (WEXITSTATUS (status
) > greatest_status
)
3273 greatest_status
= WEXITSTATUS (status
);
3277 if (report_times
|| report_times_to_file
)
3279 struct pex_time
*pt
= ×
[i
];
3282 ut
= ((double) pt
->user_seconds
3283 + (double) pt
->user_microseconds
/ 1.0e6
);
3284 st
= ((double) pt
->system_seconds
3285 + (double) pt
->system_microseconds
/ 1.0e6
);
3290 fnotice (stderr
, "# %s %.2f %.2f\n",
3291 commands
[i
].prog
, ut
, st
);
3293 if (report_times_to_file
)
3296 const char *const *j
;
3298 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3300 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3303 for (p
= *j
; *p
; ++p
)
3304 if (*p
== '"' || *p
== '\\' || *p
== '$'
3310 fprintf (report_times_to_file
, " \"");
3311 for (p
= *j
; *p
; ++p
)
3313 if (*p
== '"' || *p
== '\\' || *p
== '$')
3314 fputc ('\\', report_times_to_file
);
3315 fputc (*p
, report_times_to_file
);
3317 fputc ('"', report_times_to_file
);
3320 fprintf (report_times_to_file
, " %s", *j
);
3323 fputc ('\n', report_times_to_file
);
3329 if (commands
[0].argv
[0] != commands
[0].prog
)
3330 free (CONST_CAST (char *, commands
[0].argv
[0]));
3336 /* Find all the switches given to us
3337 and make a vector describing them.
3338 The elements of the vector are strings, one per switch given.
3339 If a switch uses following arguments, then the `part1' field
3340 is the switch itself and the `args' field
3341 is a null-terminated vector containing the following arguments.
3342 Bits in the `live_cond' field are:
3343 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3344 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3345 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3346 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored.
3347 SWITCH_KEEP_FOR_GCC to indicate that this switch, otherwise ignored,
3348 should be included in COLLECT_GCC_OPTIONS.
3349 in all do_spec calls afterwards. Used for %<S from self specs.
3350 The `known' field describes whether this is an internal switch.
3351 The `validated' field describes whether any spec has looked at this switch;
3352 if it remains false at the end of the run, the switch must be meaningless.
3353 The `ordering' field is used to temporarily mark switches that have to be
3354 kept in a specific order. */
3356 #define SWITCH_LIVE (1 << 0)
3357 #define SWITCH_FALSE (1 << 1)
3358 #define SWITCH_IGNORE (1 << 2)
3359 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
3360 #define SWITCH_KEEP_FOR_GCC (1 << 4)
3366 unsigned int live_cond
;
3372 static struct switchstr
*switches
;
3374 static int n_switches
;
3376 static int n_switches_alloc
;
3378 /* Set to zero if -fcompare-debug is disabled, positive if it's
3379 enabled and we're running the first compilation, negative if it's
3380 enabled and we're running the second compilation. For most of the
3381 time, it's in the range -1..1, but it can be temporarily set to 2
3382 or 3 to indicate that the -fcompare-debug flags didn't come from
3383 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3384 variable, until a synthesized -fcompare-debug flag is added to the
3388 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3389 int compare_debug_second
;
3391 /* Set to the flags that should be passed to the second compilation in
3392 a -fcompare-debug compilation. */
3393 const char *compare_debug_opt
;
3395 static struct switchstr
*switches_debug_check
[2];
3397 static int n_switches_debug_check
[2];
3399 static int n_switches_alloc_debug_check
[2];
3401 static char *debug_check_temp_file
[2];
3403 /* Language is one of three things:
3405 1) The name of a real programming language.
3406 2) NULL, indicating that no one has figured out
3408 3) '*', indicating that the file should be passed
3413 const char *language
;
3414 struct compiler
*incompiler
;
3419 /* Also a vector of input files specified. */
3421 static struct infile
*infiles
;
3425 static int n_infiles_alloc
;
3427 /* True if undefined environment variables encountered during spec processing
3428 are ok to ignore, typically when we're running for --help or --version. */
3430 static bool spec_undefvar_allowed
;
3432 /* True if multiple input files are being compiled to a single
3435 static bool combine_inputs
;
3437 /* This counts the number of libraries added by lang_specific_driver, so that
3438 we can tell if there were any user supplied any files or libraries. */
3440 static int added_libraries
;
3442 /* And a vector of corresponding output files is made up later. */
3444 const char **outfiles
;
3446 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3448 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3449 is true if we should look for an executable suffix. DO_OBJ
3450 is true if we should look for an object suffix. */
3453 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3454 int do_obj ATTRIBUTE_UNUSED
)
3456 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3464 len
= strlen (name
);
3466 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3467 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3468 if (do_obj
&& len
> 2
3469 && name
[len
- 2] == '.'
3470 && name
[len
- 1] == 'o')
3472 obstack_grow (&obstack
, name
, len
- 2);
3473 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3474 name
= XOBFINISH (&obstack
, const char *);
3478 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3479 /* If there is no filetype, make it the executable suffix (which includes
3480 the "."). But don't get confused if we have just "-o". */
3481 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3484 for (i
= len
- 1; i
>= 0; i
--)
3485 if (IS_DIR_SEPARATOR (name
[i
]))
3488 for (i
++; i
< len
; i
++)
3492 obstack_grow (&obstack
, name
, len
);
3493 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3494 strlen (TARGET_EXECUTABLE_SUFFIX
));
3495 name
= XOBFINISH (&obstack
, const char *);
3502 /* Display the command line switches accepted by gcc. */
3506 printf (_("Usage: %s [options] file...\n"), progname
);
3507 fputs (_("Options:\n"), stdout
);
3509 fputs (_(" -pass-exit-codes Exit with highest error code from a phase.\n"), stdout
);
3510 fputs (_(" --help Display this information.\n"), stdout
);
3511 fputs (_(" --target-help Display target specific command line options.\n"), stdout
);
3512 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...].\n"), stdout
);
3513 fputs (_(" Display specific types of command line options.\n"), stdout
);
3515 fputs (_(" (Use '-v --help' to display command line options of sub-processes).\n"), stdout
);
3516 fputs (_(" --version Display compiler version information.\n"), stdout
);
3517 fputs (_(" -dumpspecs Display all of the built in spec strings.\n"), stdout
);
3518 fputs (_(" -dumpversion Display the version of the compiler.\n"), stdout
);
3519 fputs (_(" -dumpmachine Display the compiler's target processor.\n"), stdout
);
3520 fputs (_(" -print-search-dirs Display the directories in the compiler's search path.\n"), stdout
);
3521 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library.\n"), stdout
);
3522 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>.\n"), stdout
);
3523 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>.\n"), stdout
);
3525 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3526 a component in the library path.\n"), stdout
);
3527 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc.\n"), stdout
);
3529 -print-multi-lib Display the mapping between command line options and\n\
3530 multiple library search directories.\n"), stdout
);
3531 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries.\n"), stdout
);
3532 fputs (_(" -print-sysroot Display the target libraries directory.\n"), stdout
);
3533 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers.\n"), stdout
);
3534 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler.\n"), stdout
);
3535 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor.\n"), stdout
);
3536 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker.\n"), stdout
);
3537 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler.\n"), stdout
);
3538 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor.\n"), stdout
);
3539 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker.\n"), stdout
);
3540 fputs (_(" -save-temps Do not delete intermediate files.\n"), stdout
);
3541 fputs (_(" -save-temps=<arg> Do not delete intermediate files.\n"), stdout
);
3543 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3544 prefixes to other gcc components.\n"), stdout
);
3545 fputs (_(" -pipe Use pipes rather than intermediate files.\n"), stdout
);
3546 fputs (_(" -time Time the execution of each subprocess.\n"), stdout
);
3547 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>.\n"), stdout
);
3548 fputs (_(" -std=<standard> Assume that the input sources are for <standard>.\n"), stdout
);
3550 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3551 and libraries.\n"), stdout
);
3552 fputs (_(" -B <directory> Add <directory> to the compiler's search paths.\n"), stdout
);
3553 fputs (_(" -v Display the programs invoked by the compiler.\n"), stdout
);
3554 fputs (_(" -### Like -v but options quoted and commands not executed.\n"), stdout
);
3555 fputs (_(" -E Preprocess only; do not compile, assemble or link.\n"), stdout
);
3556 fputs (_(" -S Compile only; do not assemble or link.\n"), stdout
);
3557 fputs (_(" -c Compile and assemble, but do not link.\n"), stdout
);
3558 fputs (_(" -o <file> Place the output into <file>.\n"), stdout
);
3559 fputs (_(" -pie Create a dynamically linked position independent\n\
3560 executable.\n"), stdout
);
3561 fputs (_(" -shared Create a shared library.\n"), stdout
);
3563 -x <language> Specify the language of the following input files.\n\
3564 Permissible languages include: c c++ assembler none\n\
3565 'none' means revert to the default behavior of\n\
3566 guessing the language based on the file's extension.\n\
3570 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3571 passed on to the various sub-processes invoked by %s. In order to pass\n\
3572 other options on to these processes the -W<letter> options must be used.\n\
3575 /* The rest of the options are displayed by invocations of the various
3580 add_preprocessor_option (const char *option
, int len
)
3582 preprocessor_options
.safe_push (save_string (option
, len
));
3586 add_assembler_option (const char *option
, int len
)
3588 assembler_options
.safe_push (save_string (option
, len
));
3592 add_linker_option (const char *option
, int len
)
3594 linker_options
.safe_push (save_string (option
, len
));
3597 /* Allocate space for an input file in infiles. */
3602 if (n_infiles_alloc
== 0)
3604 n_infiles_alloc
= 16;
3605 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3607 else if (n_infiles_alloc
== n_infiles
)
3609 n_infiles_alloc
*= 2;
3610 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3614 /* Store an input file with the given NAME and LANGUAGE in
3618 add_infile (const char *name
, const char *language
)
3621 infiles
[n_infiles
].name
= name
;
3622 infiles
[n_infiles
++].language
= language
;
3625 /* Allocate space for a switch in switches. */
3630 if (n_switches_alloc
== 0)
3632 n_switches_alloc
= 16;
3633 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3635 else if (n_switches_alloc
== n_switches
)
3637 n_switches_alloc
*= 2;
3638 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3642 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3643 as validated if VALIDATED and KNOWN if it is an internal switch. */
3646 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3647 bool validated
, bool known
)
3650 switches
[n_switches
].part1
= opt
+ 1;
3652 switches
[n_switches
].args
= 0;
3655 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3656 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3657 switches
[n_switches
].args
[n_args
] = NULL
;
3660 switches
[n_switches
].live_cond
= 0;
3661 switches
[n_switches
].validated
= validated
;
3662 switches
[n_switches
].known
= known
;
3663 switches
[n_switches
].ordering
= 0;
3667 /* Set the SOURCE_DATE_EPOCH environment variable to the current time if it is
3671 set_source_date_epoch_envvar ()
3673 /* Array size is 21 = ceil(log_10(2^64)) + 1 to hold string representations
3674 of 64 bit integers. */
3675 char source_date_epoch
[21];
3680 if (tt
< (time_t) 0 || errno
!= 0)
3683 snprintf (source_date_epoch
, 21, "%llu", (unsigned long long) tt
);
3684 /* Using setenv instead of xputenv because we want the variable to remain
3685 after finalizing so that it's still set in the second run when using
3687 setenv ("SOURCE_DATE_EPOCH", source_date_epoch
, 0);
3690 /* Handle an option DECODED that is unknown to the option-processing
3694 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3696 const char *opt
= decoded
->arg
;
3697 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3698 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3700 /* Leave unknown -Wno-* options for the compiler proper, to be
3701 diagnosed only if there are warnings. */
3702 save_switch (decoded
->canonical_option
[0],
3703 decoded
->canonical_option_num_elements
- 1,
3704 &decoded
->canonical_option
[1], false, true);
3707 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3709 /* Give it a chance to define it a spec file. */
3710 save_switch (decoded
->canonical_option
[0],
3711 decoded
->canonical_option_num_elements
- 1,
3712 &decoded
->canonical_option
[1], false, false);
3719 /* Handle an option DECODED that is not marked as CL_DRIVER.
3720 LANG_MASK will always be CL_DRIVER. */
3723 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3724 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3726 /* At this point, non-driver options are accepted (and expected to
3727 be passed down by specs) unless marked to be rejected by the
3728 driver. Options to be rejected by the driver but accepted by the
3729 compilers proper are treated just like completely unknown
3731 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3733 if (option
->cl_reject_driver
)
3734 error ("unrecognized command line option %qs",
3735 decoded
->orig_option_with_args_text
);
3737 save_switch (decoded
->canonical_option
[0],
3738 decoded
->canonical_option_num_elements
- 1,
3739 &decoded
->canonical_option
[1], false, true);
3742 static const char *spec_lang
= 0;
3743 static int last_language_n_infiles
;
3745 /* Parse -foffload option argument. */
3748 handle_foffload_option (const char *arg
)
3750 const char *c
, *cur
, *n
, *next
, *end
;
3753 /* If option argument starts with '-' then no target is specified and we
3754 do not need to parse it. */
3758 end
= strchr (arg
, '=');
3760 end
= strchr (arg
, '\0');
3765 next
= strchr (cur
, ',');
3768 next
= (next
> end
) ? end
: next
;
3770 target
= XNEWVEC (char, next
- cur
+ 1);
3771 memcpy (target
, cur
, next
- cur
);
3772 target
[next
- cur
] = '\0';
3774 /* If 'disable' is passed to the option, stop parsing the option and clean
3775 the list of offload targets. */
3776 if (strcmp (target
, "disable") == 0)
3778 free (offload_targets
);
3779 offload_targets
= xstrdup ("");
3783 /* Check that GCC is configured to support the offload target. */
3784 c
= OFFLOAD_TARGETS
;
3787 n
= strchr (c
, ',');
3789 n
= strchr (c
, '\0');
3791 if (next
- cur
== n
- c
&& strncmp (target
, c
, n
- c
) == 0)
3794 c
= *n
? n
+ 1 : NULL
;
3798 fatal_error (input_location
,
3799 "GCC is not configured to support %s as offload target",
3802 if (!offload_targets
)
3804 offload_targets
= target
;
3809 /* Check that the target hasn't already presented in the list. */
3810 c
= offload_targets
;
3813 n
= strchr (c
, ':');
3815 n
= strchr (c
, '\0');
3817 if (next
- cur
== n
- c
&& strncmp (c
, target
, n
- c
) == 0)
3824 /* If duplicate is not found, append the target to the list. */
3827 size_t offload_targets_len
= strlen (offload_targets
);
3829 = XRESIZEVEC (char, offload_targets
,
3830 offload_targets_len
+ 1 + next
- cur
+ 1);
3831 offload_targets
[offload_targets_len
++] = ':';
3832 memcpy (offload_targets
+ offload_targets_len
, target
, next
- cur
+ 1);
3837 XDELETEVEC (target
);
3841 /* Handle a driver option; arguments and return value as for
3845 driver_handle_option (struct gcc_options
*opts
,
3846 struct gcc_options
*opts_set
,
3847 const struct cl_decoded_option
*decoded
,
3848 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3850 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3851 diagnostic_context
*dc
,
3854 size_t opt_index
= decoded
->opt_index
;
3855 const char *arg
= decoded
->arg
;
3856 const char *compare_debug_replacement_opt
;
3857 int value
= decoded
->value
;
3858 bool validated
= false;
3859 bool do_save
= true;
3861 gcc_assert (opts
== &global_options
);
3862 gcc_assert (opts_set
== &global_options_set
);
3863 gcc_assert (kind
== DK_UNSPECIFIED
);
3864 gcc_assert (loc
== UNKNOWN_LOCATION
);
3865 gcc_assert (dc
== global_dc
);
3871 struct spec_list
*sl
;
3873 for (sl
= specs
; sl
; sl
= sl
->next
)
3874 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3875 if (link_command_spec
)
3876 printf ("*link_command:\n%s\n\n", link_command_spec
);
3880 case OPT_dumpversion
:
3881 printf ("%s\n", spec_version
);
3884 case OPT_dumpmachine
:
3885 printf ("%s\n", spec_machine
);
3888 case OPT_dumpfullversion
:
3889 printf ("%s\n", BASEVER
);
3895 /* CPP driver cannot obtain switch from cc1_options. */
3897 add_preprocessor_option ("--version", strlen ("--version"));
3898 add_assembler_option ("--version", strlen ("--version"));
3899 add_linker_option ("--version", strlen ("--version"));
3902 case OPT__completion_
:
3904 completion
= decoded
->arg
;
3908 print_help_list
= 1;
3910 /* CPP driver cannot obtain switch from cc1_options. */
3912 add_preprocessor_option ("--help", 6);
3913 add_assembler_option ("--help", 6);
3914 add_linker_option ("--help", 6);
3918 print_subprocess_help
= 2;
3921 case OPT__target_help
:
3922 print_subprocess_help
= 1;
3924 /* CPP driver cannot obtain switch from cc1_options. */
3926 add_preprocessor_option ("--target-help", 13);
3927 add_assembler_option ("--target-help", 13);
3928 add_linker_option ("--target-help", 13);
3931 case OPT__no_sysroot_suffix
:
3932 case OPT_pass_exit_codes
:
3933 case OPT_print_search_dirs
:
3934 case OPT_print_file_name_
:
3935 case OPT_print_prog_name_
:
3936 case OPT_print_multi_lib
:
3937 case OPT_print_multi_directory
:
3938 case OPT_print_sysroot
:
3939 case OPT_print_multi_os_directory
:
3940 case OPT_print_multiarch
:
3941 case OPT_print_sysroot_headers_suffix
:
3944 /* These options set the variables specified in common.opt
3945 automatically, and do not need to be saved for spec
3950 case OPT_print_libgcc_file_name
:
3951 print_file_name
= "libgcc.a";
3955 case OPT_fuse_ld_bfd
:
3959 case OPT_fuse_ld_gold
:
3963 case OPT_fcompare_debug_second
:
3964 compare_debug_second
= 1;
3967 case OPT_fcompare_debug
:
3971 compare_debug_replacement_opt
= "-fcompare-debug=";
3973 goto compare_debug_with_arg
;
3976 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3978 goto compare_debug_with_arg
;
3985 case OPT_fcompare_debug_
:
3986 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3987 compare_debug_with_arg
:
3988 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3989 gcc_assert (arg
!= NULL
);
3994 if (compare_debug
< 0)
3995 compare_debug_opt
= NULL
;
3997 compare_debug_opt
= arg
;
3998 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
3999 set_source_date_epoch_envvar ();
4002 case OPT_fdiagnostics_color_
:
4003 diagnostic_color_init (dc
, value
);
4006 case OPT_fdiagnostics_format_
:
4007 diagnostic_output_format_init (dc
,
4008 (enum diagnostics_output_format
)value
);
4014 /* Pass the rest of this option to the assembler. */
4016 /* Split the argument at commas. */
4018 for (j
= 0; arg
[j
]; j
++)
4021 add_assembler_option (arg
+ prev
, j
- prev
);
4025 /* Record the part after the last comma. */
4026 add_assembler_option (arg
+ prev
, j
- prev
);
4034 /* Pass the rest of this option to the preprocessor. */
4036 /* Split the argument at commas. */
4038 for (j
= 0; arg
[j
]; j
++)
4041 add_preprocessor_option (arg
+ prev
, j
- prev
);
4045 /* Record the part after the last comma. */
4046 add_preprocessor_option (arg
+ prev
, j
- prev
);
4054 /* Split the argument at commas. */
4056 for (j
= 0; arg
[j
]; j
++)
4059 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
4062 /* Record the part after the last comma. */
4063 add_infile (arg
+ prev
, "*");
4069 add_infile (arg
, "*");
4073 case OPT_Xpreprocessor
:
4074 add_preprocessor_option (arg
, strlen (arg
));
4078 case OPT_Xassembler
:
4079 add_assembler_option (arg
, strlen (arg
));
4084 /* POSIX allows separation of -l and the lib arg; canonicalize
4085 by concatenating -l with its arg */
4086 add_infile (concat ("-l", arg
, NULL
), "*");
4091 /* Similarly, canonicalize -L for linkers that may not accept
4092 separate arguments. */
4093 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
4098 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
4101 case OPT_save_temps
:
4102 save_temps_flag
= SAVE_TEMPS_CWD
;
4106 case OPT_save_temps_
:
4107 if (strcmp (arg
, "cwd") == 0)
4108 save_temps_flag
= SAVE_TEMPS_CWD
;
4109 else if (strcmp (arg
, "obj") == 0
4110 || strcmp (arg
, "object") == 0)
4111 save_temps_flag
= SAVE_TEMPS_OBJ
;
4113 fatal_error (input_location
, "%qs is an unknown -save-temps option",
4114 decoded
->orig_option_with_args_text
);
4117 case OPT_no_canonical_prefixes
:
4118 /* Already handled as a special case, so ignored here. */
4124 /* These options set the variables specified in common.opt
4125 automatically, but do need to be saved for spec
4131 struct user_specs
*user
= XNEW (struct user_specs
);
4133 user
->next
= (struct user_specs
*) 0;
4134 user
->filename
= arg
;
4135 if (user_specs_tail
)
4136 user_specs_tail
->next
= user
;
4138 user_specs_head
= user
;
4139 user_specs_tail
= user
;
4145 target_system_root
= arg
;
4146 target_system_root_changed
= 1;
4151 if (report_times_to_file
)
4152 fclose (report_times_to_file
);
4153 report_times_to_file
= fopen (arg
, "a");
4159 This is similar to -v except that there is no execution
4160 of the commands and the echoed arguments are quoted. It
4161 is intended for use in shell scripts to capture the
4162 driver-generated command line. */
4163 verbose_only_flag
++;
4170 size_t len
= strlen (arg
);
4172 /* Catch the case where the user has forgotten to append a
4173 directory separator to the path. Note, they may be using
4174 -B to add an executable name prefix, eg "i386-elf-", in
4175 order to distinguish between multiple installations of
4176 GCC in the same directory. Hence we must check to see
4177 if appending a directory separator actually makes a
4178 valid directory name. */
4179 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
4180 && is_directory (arg
, false))
4182 char *tmp
= XNEWVEC (char, len
+ 2);
4184 tmp
[len
] = DIR_SEPARATOR
;
4189 add_prefix (&exec_prefixes
, arg
, NULL
,
4190 PREFIX_PRIORITY_B_OPT
, 0, 0);
4191 add_prefix (&startfile_prefixes
, arg
, NULL
,
4192 PREFIX_PRIORITY_B_OPT
, 0, 0);
4193 add_prefix (&include_prefixes
, arg
, NULL
,
4194 PREFIX_PRIORITY_B_OPT
, 0, 0);
4205 if (!strcmp (spec_lang
, "none"))
4206 /* Suppress the warning if -xnone comes after the last input
4207 file, because alternate command interfaces like g++ might
4208 find it useful to place -xnone after each input file. */
4211 last_language_n_infiles
= n_infiles
;
4217 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4218 arg
= convert_filename (arg
, ! have_c
, 0);
4221 /* Save the output name in case -save-temps=obj was used. */
4222 save_temps_prefix
= xstrdup (arg
);
4223 /* On some systems, ld cannot handle "-o" without a space. So
4224 split the option from its argument. */
4225 save_switch ("-o", 1, &arg
, validated
, true);
4228 #ifdef ENABLE_DEFAULT_PIE
4230 /* -pie is turned on by default. */
4233 case OPT_static_libgcc
:
4234 case OPT_shared_libgcc
:
4235 case OPT_static_libgfortran
:
4236 case OPT_static_libstdc__
:
4237 /* These are always valid, since gcc.c itself understands the
4238 first two, gfortranspec.c understands -static-libgfortran and
4239 g++spec.c understands -static-libstdc++ */
4248 handle_foffload_option (arg
);
4252 /* Various driver options need no special processing at this
4253 point, having been handled in a prescan above or being
4254 handled by specs. */
4259 save_switch (decoded
->canonical_option
[0],
4260 decoded
->canonical_option_num_elements
- 1,
4261 &decoded
->canonical_option
[1], validated
, true);
4265 /* Put the driver's standard set of option handlers in *HANDLERS. */
4268 set_option_handlers (struct cl_option_handlers
*handlers
)
4270 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
4271 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
4272 handlers
->num_handlers
= 3;
4273 handlers
->handlers
[0].handler
= driver_handle_option
;
4274 handlers
->handlers
[0].mask
= CL_DRIVER
;
4275 handlers
->handlers
[1].handler
= common_handle_option
;
4276 handlers
->handlers
[1].mask
= CL_COMMON
;
4277 handlers
->handlers
[2].handler
= target_handle_option
;
4278 handlers
->handlers
[2].mask
= CL_TARGET
;
4281 /* Create the vector `switches' and its contents.
4282 Store its length in `n_switches'. */
4285 process_command (unsigned int decoded_options_count
,
4286 struct cl_decoded_option
*decoded_options
)
4290 char *tooldir_prefix
, *tooldir_prefix2
;
4291 char *(*get_relative_prefix
) (const char *, const char *,
4292 const char *) = NULL
;
4293 struct cl_option_handlers handlers
;
4296 gcc_exec_prefix
= env
.get ("GCC_EXEC_PREFIX");
4300 added_libraries
= 0;
4302 /* Figure compiler version from version string. */
4304 compiler_version
= temp1
= xstrdup (version_string
);
4306 for (; *temp1
; ++temp1
)
4315 /* Handle any -no-canonical-prefixes flag early, to assign the function
4316 that builds relative prefixes. This function creates default search
4317 paths that are needed later in normal option handling. */
4319 for (j
= 1; j
< decoded_options_count
; j
++)
4321 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
4323 get_relative_prefix
= make_relative_prefix_ignore_links
;
4327 if (! get_relative_prefix
)
4328 get_relative_prefix
= make_relative_prefix
;
4330 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
4331 see if we can create it from the pathname specified in
4332 decoded_options[0].arg. */
4334 gcc_libexec_prefix
= standard_libexec_prefix
;
4336 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
4337 if (!gcc_exec_prefix
)
4339 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4340 standard_bindir_prefix
,
4341 standard_exec_prefix
);
4342 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4343 standard_bindir_prefix
,
4344 standard_libexec_prefix
);
4345 if (gcc_exec_prefix
)
4346 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
4350 /* make_relative_prefix requires a program name, but
4351 GCC_EXEC_PREFIX is typically a directory name with a trailing
4352 / (which is ignored by make_relative_prefix), so append a
4354 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
4355 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
4356 standard_exec_prefix
,
4357 standard_libexec_prefix
);
4359 /* The path is unrelocated, so fallback to the original setting. */
4360 if (!gcc_libexec_prefix
)
4361 gcc_libexec_prefix
= standard_libexec_prefix
;
4367 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
4368 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
4369 or an automatically created GCC_EXEC_PREFIX from
4370 decoded_options[0].arg. */
4372 /* Do language-specific adjustment/addition of flags. */
4373 lang_specific_driver (&decoded_options
, &decoded_options_count
,
4376 if (gcc_exec_prefix
)
4378 int len
= strlen (gcc_exec_prefix
);
4380 if (len
> (int) sizeof ("/lib/gcc/") - 1
4381 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
4383 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
4384 if (IS_DIR_SEPARATOR (*temp
)
4385 && filename_ncmp (temp
+ 1, "lib", 3) == 0
4386 && IS_DIR_SEPARATOR (temp
[4])
4387 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
4388 len
-= sizeof ("/lib/gcc/") - 1;
4391 set_std_prefix (gcc_exec_prefix
, len
);
4392 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
4393 PREFIX_PRIORITY_LAST
, 0, 0);
4394 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
4395 PREFIX_PRIORITY_LAST
, 0, 0);
4398 /* COMPILER_PATH and LIBRARY_PATH have values
4399 that are lists of directory names with colons. */
4401 temp
= env
.get ("COMPILER_PATH");
4404 const char *startp
, *endp
;
4405 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4407 startp
= endp
= temp
;
4410 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4412 strncpy (nstore
, startp
, endp
- startp
);
4414 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4415 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4417 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4418 nstore
[endp
- startp
+ 1] = 0;
4421 nstore
[endp
- startp
] = 0;
4422 add_prefix (&exec_prefixes
, nstore
, 0,
4423 PREFIX_PRIORITY_LAST
, 0, 0);
4424 add_prefix (&include_prefixes
, nstore
, 0,
4425 PREFIX_PRIORITY_LAST
, 0, 0);
4428 endp
= startp
= endp
+ 1;
4435 temp
= env
.get (LIBRARY_PATH_ENV
);
4436 if (temp
&& *cross_compile
== '0')
4438 const char *startp
, *endp
;
4439 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4441 startp
= endp
= temp
;
4444 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4446 strncpy (nstore
, startp
, endp
- startp
);
4448 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4449 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4451 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4452 nstore
[endp
- startp
+ 1] = 0;
4455 nstore
[endp
- startp
] = 0;
4456 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4457 PREFIX_PRIORITY_LAST
, 0, 1);
4460 endp
= startp
= endp
+ 1;
4467 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4468 temp
= env
.get ("LPATH");
4469 if (temp
&& *cross_compile
== '0')
4471 const char *startp
, *endp
;
4472 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4474 startp
= endp
= temp
;
4477 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4479 strncpy (nstore
, startp
, endp
- startp
);
4481 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4482 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4484 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4485 nstore
[endp
- startp
+ 1] = 0;
4488 nstore
[endp
- startp
] = 0;
4489 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4490 PREFIX_PRIORITY_LAST
, 0, 1);
4493 endp
= startp
= endp
+ 1;
4500 /* Process the options and store input files and switches in their
4503 last_language_n_infiles
= -1;
4505 set_option_handlers (&handlers
);
4507 for (j
= 1; j
< decoded_options_count
; j
++)
4509 switch (decoded_options
[j
].opt_index
)
4521 for (j
= 1; j
< decoded_options_count
; j
++)
4523 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4525 const char *arg
= decoded_options
[j
].arg
;
4526 const char *p
= strrchr (arg
, '@');
4530 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4531 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4533 /* For LTO static archive support we handle input file
4534 specifications that are composed of a filename and
4535 an offset like FNAME@OFFSET. */
4538 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4539 && strlen (p
) == (unsigned int)consumed
)
4541 fname
= (char *)xmalloc (p
- arg
+ 1);
4542 memcpy (fname
, arg
, p
- arg
);
4543 fname
[p
- arg
] = '\0';
4544 /* Only accept non-stdin and existing FNAME parts, otherwise
4545 try with the full name. */
4546 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4549 fname
= xstrdup (arg
);
4553 fname
= xstrdup (arg
);
4555 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4557 bool resp
= fname
[0] == '@' && access (fname
+ 1, F_OK
) < 0;
4558 error ("%s: %m", fname
+ resp
);
4561 add_infile (arg
, spec_lang
);
4567 read_cmdline_option (&global_options
, &global_options_set
,
4568 decoded_options
+ j
, UNKNOWN_LOCATION
,
4569 CL_DRIVER
, &handlers
, global_dc
);
4572 /* If the user didn't specify any, default to all configured offload
4574 if (ENABLE_OFFLOADING
&& offload_targets
== NULL
)
4575 handle_foffload_option (OFFLOAD_TARGETS
);
4578 && strcmp (output_file
, "-") != 0
4579 && strcmp (output_file
, HOST_BIT_BUCKET
) != 0)
4582 for (i
= 0; i
< n_infiles
; i
++)
4583 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
4584 && canonical_filename_eq (infiles
[i
].name
, output_file
))
4585 fatal_error (input_location
,
4586 "input file %qs is the same as output file",
4590 if (output_file
!= NULL
&& output_file
[0] == '\0')
4591 fatal_error (input_location
, "output filename may not be empty");
4593 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4594 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4595 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4597 save_temps_length
= strlen (save_temps_prefix
);
4598 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4601 save_temps_length
-= strlen (temp
);
4602 save_temps_prefix
[save_temps_length
] = '\0';
4606 else if (save_temps_prefix
!= NULL
)
4608 free (save_temps_prefix
);
4609 save_temps_prefix
= NULL
;
4612 if (save_temps_flag
&& use_pipes
)
4614 /* -save-temps overrides -pipe, so that temp files are produced */
4615 if (save_temps_flag
)
4616 warning (0, "-pipe ignored because -save-temps specified");
4622 const char *gcd
= env
.get ("GCC_COMPARE_DEBUG");
4624 if (gcd
&& gcd
[0] == '-')
4627 compare_debug_opt
= gcd
;
4629 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4632 compare_debug_opt
= "-gtoggle";
4635 else if (compare_debug
< 0)
4638 gcc_assert (!compare_debug_opt
);
4641 /* Set up the search paths. We add directories that we expect to
4642 contain GNU Toolchain components before directories specified by
4643 the machine description so that we will find GNU components (like
4644 the GNU assembler) before those of the host system. */
4646 /* If we don't know where the toolchain has been installed, use the
4647 configured-in locations. */
4648 if (!gcc_exec_prefix
)
4651 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4652 PREFIX_PRIORITY_LAST
, 1, 0);
4653 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4654 PREFIX_PRIORITY_LAST
, 2, 0);
4655 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4656 PREFIX_PRIORITY_LAST
, 2, 0);
4658 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4659 PREFIX_PRIORITY_LAST
, 1, 0);
4662 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4663 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
4664 dir_separator_str
, NULL
);
4666 /* Look for tools relative to the location from which the driver is
4667 running, or, if that is not available, the configured prefix. */
4669 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4670 spec_host_machine
, dir_separator_str
, spec_version
,
4671 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
4672 free (tooldir_prefix2
);
4674 add_prefix (&exec_prefixes
,
4675 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4676 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4677 add_prefix (&startfile_prefixes
,
4678 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4679 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4680 free (tooldir_prefix
);
4682 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4683 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4684 then consider it to relocate with the rest of the GCC installation
4685 if GCC_EXEC_PREFIX is set.
4686 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4687 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4689 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4690 standard_bindir_prefix
,
4691 target_system_root
);
4692 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4694 target_system_root
= tmp_prefix
;
4695 target_system_root_changed
= 1;
4700 /* More prefixes are enabled in main, after we read the specs file
4701 and determine whether this is cross-compilation or not. */
4703 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4704 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4706 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4707 environment variable. */
4708 if (compare_debug
== 2 || compare_debug
== 3)
4710 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4711 save_switch (opt
, 0, NULL
, false, true);
4715 /* Ensure we only invoke each subprocess once. */
4716 if (print_subprocess_help
|| print_help_list
|| print_version
)
4720 /* Create a dummy input file, so that we can pass
4721 the help option on to the various sub-processes. */
4722 add_infile ("help-dummy", "c");
4725 /* Decide if undefined variable references are allowed in specs. */
4727 /* -v alone is safe. --version and --help alone or together are safe. Note
4728 that -v would make them unsafe, as they'd then be run for subprocesses as
4729 well, the location of which might depend on variables possibly coming
4730 from self-specs. Note also that the command name is counted in
4731 decoded_options_count. */
4733 unsigned help_version_count
= 0;
4736 help_version_count
++;
4738 if (print_help_list
)
4739 help_version_count
++;
4741 spec_undefvar_allowed
=
4742 ((verbose_flag
&& decoded_options_count
== 2)
4743 || help_version_count
== decoded_options_count
- 1);
4746 switches
[n_switches
].part1
= 0;
4748 infiles
[n_infiles
].name
= 0;
4751 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4752 and place that in the environment. */
4755 set_collect_gcc_options (void)
4760 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4762 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4763 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4766 for (i
= 0; (int) i
< n_switches
; i
++)
4768 const char *const *args
;
4771 obstack_grow (&collect_obstack
, " ", 1);
4775 /* Ignore elided switches. */
4776 if ((switches
[i
].live_cond
4777 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4781 obstack_grow (&collect_obstack
, "'-", 2);
4782 q
= switches
[i
].part1
;
4783 while ((p
= strchr (q
, '\'')))
4785 obstack_grow (&collect_obstack
, q
, p
- q
);
4786 obstack_grow (&collect_obstack
, "'\\''", 4);
4789 obstack_grow (&collect_obstack
, q
, strlen (q
));
4790 obstack_grow (&collect_obstack
, "'", 1);
4792 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4794 obstack_grow (&collect_obstack
, " '", 2);
4796 while ((p
= strchr (q
, '\'')))
4798 obstack_grow (&collect_obstack
, q
, p
- q
);
4799 obstack_grow (&collect_obstack
, "'\\''", 4);
4802 obstack_grow (&collect_obstack
, q
, strlen (q
));
4803 obstack_grow (&collect_obstack
, "'", 1);
4806 obstack_grow (&collect_obstack
, "\0", 1);
4807 xputenv (XOBFINISH (&collect_obstack
, char *));
4810 /* Process a spec string, accumulating and running commands. */
4812 /* These variables describe the input file name.
4813 input_file_number is the index on outfiles of this file,
4814 so that the output file name can be stored for later use by %o.
4815 input_basename is the start of the part of the input file
4816 sans all directory names, and basename_length is the number
4817 of characters starting there excluding the suffix .c or whatever. */
4819 static const char *gcc_input_filename
;
4820 static int input_file_number
;
4821 size_t input_filename_length
;
4822 static int basename_length
;
4823 static int suffixed_basename_length
;
4824 static const char *input_basename
;
4825 static const char *input_suffix
;
4826 #ifndef HOST_LACKS_INODE_NUMBERS
4827 static struct stat input_stat
;
4829 static int input_stat_set
;
4831 /* The compiler used to process the current input file. */
4832 static struct compiler
*input_file_compiler
;
4834 /* These are variables used within do_spec and do_spec_1. */
4836 /* Nonzero if an arg has been started and not yet terminated
4837 (with space, tab or newline). */
4838 static int arg_going
;
4840 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4841 is a temporary file name. */
4842 static int delete_this_arg
;
4844 /* Nonzero means %w has been seen; the next arg to be terminated
4845 is the output file name of this compilation. */
4846 static int this_is_output_file
;
4848 /* Nonzero means %s has been seen; the next arg to be terminated
4849 is the name of a library file and we should try the standard
4850 search dirs for it. */
4851 static int this_is_library_file
;
4853 /* Nonzero means %T has been seen; the next arg to be terminated
4854 is the name of a linker script and we should try all of the
4855 standard search dirs for it. If it is found insert a --script
4856 command line switch and then substitute the full path in place,
4857 otherwise generate an error message. */
4858 static int this_is_linker_script
;
4860 /* Nonzero means that the input of this command is coming from a pipe. */
4861 static int input_from_pipe
;
4863 /* Nonnull means substitute this for any suffix when outputting a switches
4865 static const char *suffix_subst
;
4867 /* If there is an argument being accumulated, terminate it and store it. */
4870 end_going_arg (void)
4876 obstack_1grow (&obstack
, 0);
4877 string
= XOBFINISH (&obstack
, const char *);
4878 if (this_is_library_file
)
4879 string
= find_file (string
);
4880 if (this_is_linker_script
)
4882 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4884 if (full_script_path
== NULL
)
4886 error ("unable to locate default linker script %qs in the library search paths", string
);
4887 /* Script was not found on search path. */
4890 store_arg ("--script", false, false);
4891 string
= full_script_path
;
4893 store_arg (string
, delete_this_arg
, this_is_output_file
);
4894 if (this_is_output_file
)
4895 outfiles
[input_file_number
] = string
;
4901 /* Parse the WRAPPER string which is a comma separated list of the command line
4902 and insert them into the beginning of argbuf. */
4905 insert_wrapper (const char *wrapper
)
4909 char *buf
= xstrdup (wrapper
);
4911 unsigned int old_length
= argbuf
.length ();
4919 while ((p
= strchr (p
, ',')) != NULL
);
4921 argbuf
.safe_grow (old_length
+ n
);
4922 memmove (argbuf
.address () + n
,
4924 old_length
* sizeof (const_char_p
));
4938 while ((p
= strchr (p
, ',')) != NULL
);
4939 gcc_assert (i
== n
);
4942 /* Process the spec SPEC and run the commands specified therein.
4943 Returns 0 if the spec is successfully processed; -1 if failed. */
4946 do_spec (const char *spec
)
4950 value
= do_spec_2 (spec
, NULL
);
4952 /* Force out any unfinished command.
4953 If -pipe, this forces out the last command if it ended in `|'. */
4956 if (argbuf
.length () > 0
4957 && !strcmp (argbuf
.last (), "|"))
4960 set_collect_gcc_options ();
4962 if (argbuf
.length () > 0)
4969 /* Process the spec SPEC, with SOFT_MATCHED_PART designating the current value
4970 of a matched * pattern which may be re-injected by way of %*. */
4973 do_spec_2 (const char *spec
, const char *soft_matched_part
)
4979 delete_this_arg
= 0;
4980 this_is_output_file
= 0;
4981 this_is_library_file
= 0;
4982 this_is_linker_script
= 0;
4983 input_from_pipe
= 0;
4984 suffix_subst
= NULL
;
4986 result
= do_spec_1 (spec
, 0, soft_matched_part
);
4993 /* Process the given spec string and add any new options to the end
4994 of the switches/n_switches array. */
4997 do_option_spec (const char *name
, const char *spec
)
4999 unsigned int i
, value_count
, value_len
;
5000 const char *p
, *q
, *value
;
5001 char *tmp_spec
, *tmp_spec_p
;
5003 if (configure_default_options
[0].name
== NULL
)
5006 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
5007 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
5009 if (i
== ARRAY_SIZE (configure_default_options
))
5012 value
= configure_default_options
[i
].value
;
5013 value_len
= strlen (value
);
5015 /* Compute the size of the final spec. */
5018 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
5024 /* Replace each %(VALUE) by the specified value. */
5025 tmp_spec
= (char *) alloca (strlen (spec
) + 1
5026 + value_count
* (value_len
- strlen ("%(VALUE)")));
5027 tmp_spec_p
= tmp_spec
;
5029 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
5031 memcpy (tmp_spec_p
, q
, p
- q
);
5032 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
5033 memcpy (tmp_spec_p
, value
, value_len
);
5034 tmp_spec_p
+= value_len
;
5035 q
= p
+ strlen ("%(VALUE)");
5037 strcpy (tmp_spec_p
, q
);
5039 do_self_spec (tmp_spec
);
5042 /* Process the given spec string and add any new options to the end
5043 of the switches/n_switches array. */
5046 do_self_spec (const char *spec
)
5050 do_spec_2 (spec
, NULL
);
5051 do_spec_1 (" ", 0, NULL
);
5053 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
5054 do_self_specs adds the replacements to switches array, so it shouldn't
5055 be processed afterwards. */
5056 for (i
= 0; i
< n_switches
; i
++)
5057 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
5058 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
5060 if (argbuf
.length () > 0)
5062 const char **argbuf_copy
;
5063 struct cl_decoded_option
*decoded_options
;
5064 struct cl_option_handlers handlers
;
5065 unsigned int decoded_options_count
;
5068 /* Create a copy of argbuf with a dummy argv[0] entry for
5069 decode_cmdline_options_to_array. */
5070 argbuf_copy
= XNEWVEC (const char *,
5071 argbuf
.length () + 1);
5072 argbuf_copy
[0] = "";
5073 memcpy (argbuf_copy
+ 1, argbuf
.address (),
5074 argbuf
.length () * sizeof (const char *));
5076 decode_cmdline_options_to_array (argbuf
.length () + 1,
5078 CL_DRIVER
, &decoded_options
,
5079 &decoded_options_count
);
5082 set_option_handlers (&handlers
);
5084 for (j
= 1; j
< decoded_options_count
; j
++)
5086 switch (decoded_options
[j
].opt_index
)
5088 case OPT_SPECIAL_input_file
:
5089 /* Specs should only generate options, not input
5091 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
5092 fatal_error (input_location
,
5093 "switch %qs does not start with %<-%>",
5094 decoded_options
[j
].arg
);
5096 fatal_error (input_location
,
5097 "spec-generated switch is just %<-%>");
5100 case OPT_fcompare_debug_second
:
5101 case OPT_fcompare_debug
:
5102 case OPT_fcompare_debug_
:
5104 /* Avoid duplicate processing of some options from
5105 compare-debug specs; just save them here. */
5106 save_switch (decoded_options
[j
].canonical_option
[0],
5107 (decoded_options
[j
].canonical_option_num_elements
5109 &decoded_options
[j
].canonical_option
[1], false, true);
5113 read_cmdline_option (&global_options
, &global_options_set
,
5114 decoded_options
+ j
, UNKNOWN_LOCATION
,
5115 CL_DRIVER
, &handlers
, global_dc
);
5120 free (decoded_options
);
5123 switches
[n_switches
].part1
= 0;
5127 /* Callback for processing %D and %I specs. */
5129 struct spec_path_info
{
5134 bool separate_options
;
5138 spec_path (char *path
, void *data
)
5140 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
5144 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
5147 if (info
->append_len
!= 0)
5149 len
= strlen (path
);
5150 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
5153 if (!is_directory (path
, true))
5156 do_spec_1 (info
->option
, 1, NULL
);
5157 if (info
->separate_options
)
5158 do_spec_1 (" ", 0, NULL
);
5160 if (info
->append_len
== 0)
5162 len
= strlen (path
);
5163 save
= path
[len
- 1];
5164 if (IS_DIR_SEPARATOR (path
[len
- 1]))
5165 path
[len
- 1] = '\0';
5168 do_spec_1 (path
, 1, NULL
);
5169 do_spec_1 (" ", 0, NULL
);
5171 /* Must not damage the original path. */
5172 if (info
->append_len
== 0)
5173 path
[len
- 1] = save
;
5178 /* True if we should compile INFILE. */
5181 compile_input_file_p (struct infile
*infile
)
5183 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5184 if (infile
->incompiler
== input_file_compiler
)
5189 /* Process each member of VEC as a spec. */
5192 do_specs_vec (vec
<char_p
> vec
)
5197 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
5199 do_spec_1 (opt
, 1, NULL
);
5200 /* Make each accumulated option a separate argument. */
5201 do_spec_1 (" ", 0, NULL
);
5205 /* Process the sub-spec SPEC as a portion of a larger spec.
5206 This is like processing a whole spec except that we do
5207 not initialize at the beginning and we do not supply a
5208 newline by default at the end.
5209 INSWITCH nonzero means don't process %-sequences in SPEC;
5210 in this case, % is treated as an ordinary character.
5211 This is used while substituting switches.
5212 INSWITCH nonzero also causes SPC not to terminate an argument.
5214 Value is zero unless a line was finished
5215 and the command on that line reported an error. */
5218 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5220 const char *p
= spec
;
5225 /* If it's an empty string argument to a switch, keep it as is. */
5226 if (inswitch
&& !*p
)
5230 /* If substituting a switch, treat all chars like letters.
5231 Otherwise, NL, SPC, TAB and % are special. */
5232 switch (inswitch
? 'a' : c
)
5237 if (argbuf
.length () > 0
5238 && !strcmp (argbuf
.last (), "|"))
5240 /* A `|' before the newline means use a pipe here,
5241 but only if -pipe was specified.
5242 Otherwise, execute now and don't pass the `|' as an arg. */
5245 input_from_pipe
= 1;
5252 set_collect_gcc_options ();
5254 if (argbuf
.length () > 0)
5260 /* Reinitialize for a new command, and for a new argument. */
5263 delete_this_arg
= 0;
5264 this_is_output_file
= 0;
5265 this_is_library_file
= 0;
5266 this_is_linker_script
= 0;
5267 input_from_pipe
= 0;
5274 obstack_1grow (&obstack
, c
);
5282 /* Reinitialize for a new argument. */
5283 delete_this_arg
= 0;
5284 this_is_output_file
= 0;
5285 this_is_library_file
= 0;
5286 this_is_linker_script
= 0;
5293 fatal_error (input_location
, "spec %qs invalid", spec
);
5296 if (save_temps_length
)
5297 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5299 obstack_grow (&obstack
, input_basename
, basename_length
);
5300 if (compare_debug
< 0)
5301 obstack_grow (&obstack
, ".gk", 3);
5306 if (save_temps_length
)
5307 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5309 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
5310 if (compare_debug
< 0)
5311 obstack_grow (&obstack
, ".gk", 3);
5316 delete_this_arg
= 2;
5319 /* Dump out the directories specified with LIBRARY_PATH,
5320 followed by the absolute directories
5321 that we search for startfiles. */
5324 struct spec_path_info info
;
5327 info
.append_len
= 0;
5328 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5329 /* Used on systems which record the specified -L dirs
5330 and use them to search for dynamic linking.
5331 Relative directories always come from -B,
5332 and it is better not to use them for searching
5333 at run time. In particular, stage1 loses. */
5334 info
.omit_relative
= true;
5336 info
.omit_relative
= false;
5338 info
.separate_options
= false;
5340 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5345 /* %efoo means report an error with `foo' as error message
5346 and don't execute any more commands for this file. */
5350 while (*p
!= 0 && *p
!= '\n')
5352 buf
= (char *) alloca (p
- q
+ 1);
5353 strncpy (buf
, q
, p
- q
);
5355 error ("%s", _(buf
));
5360 /* %nfoo means report a notice with `foo' on stderr. */
5364 while (*p
!= 0 && *p
!= '\n')
5366 buf
= (char *) alloca (p
- q
+ 1);
5367 strncpy (buf
, q
, p
- q
);
5369 inform (UNKNOWN_LOCATION
, "%s", _(buf
));
5379 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5380 defined, and it is not a directory, and it is
5381 writable, use it. Otherwise, treat this like any
5382 other temporary file. */
5384 if ((!save_temps_flag
)
5385 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5386 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5388 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5389 strlen (HOST_BIT_BUCKET
));
5390 delete_this_arg
= 0;
5395 goto create_temp_file
;
5399 obstack_1grow (&obstack
, '-');
5400 delete_this_arg
= 0;
5403 /* consume suffix */
5404 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5406 if (p
[0] == '%' && p
[1] == 'O')
5411 goto create_temp_file
;
5415 /* consume suffix */
5416 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5418 if (p
[0] == '%' && p
[1] == 'O')
5423 goto create_temp_file
;
5429 struct temp_name
*t
;
5431 const char *suffix
= p
;
5432 char *saved_suffix
= NULL
;
5434 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5436 suffix_length
= p
- suffix
;
5437 if (p
[0] == '%' && p
[1] == 'O')
5440 /* We don't support extra suffix characters after %O. */
5441 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5442 fatal_error (input_location
,
5443 "spec %qs has invalid %<%%0%c%>", spec
, *p
);
5444 if (suffix_length
== 0)
5445 suffix
= TARGET_OBJECT_SUFFIX
;
5449 = XNEWVEC (char, suffix_length
5450 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
5451 strncpy (saved_suffix
, suffix
, suffix_length
);
5452 strcpy (saved_suffix
+ suffix_length
,
5453 TARGET_OBJECT_SUFFIX
);
5455 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5458 if (compare_debug
< 0)
5460 suffix
= concat (".gk", suffix
, NULL
);
5464 /* If -save-temps=obj and -o were specified, use that for the
5466 if (save_temps_length
)
5469 temp_filename_length
5470 = save_temps_length
+ suffix_length
+ 1;
5471 tmp
= (char *) alloca (temp_filename_length
);
5472 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5473 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5474 tmp
[save_temps_length
+ suffix_length
] = '\0';
5475 temp_filename
= save_string (tmp
, save_temps_length
5477 obstack_grow (&obstack
, temp_filename
,
5478 temp_filename_length
);
5480 delete_this_arg
= 0;
5484 /* If the gcc_input_filename has the same suffix specified
5485 for the %g, %u, or %U, and -save-temps is specified,
5486 we could end up using that file as an intermediate
5487 thus clobbering the user's source file (.e.g.,
5488 gcc -save-temps foo.s would clobber foo.s with the
5489 output of cpp0). So check for this condition and
5490 generate a temp file as the intermediate. */
5492 if (save_temps_flag
)
5495 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5496 tmp
= (char *) alloca (temp_filename_length
);
5497 memcpy (tmp
, input_basename
, basename_length
);
5498 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5499 tmp
[basename_length
+ suffix_length
] = '\0';
5500 temp_filename
= tmp
;
5502 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
5504 #ifndef HOST_LACKS_INODE_NUMBERS
5505 struct stat st_temp
;
5507 /* Note, set_input() resets input_stat_set to 0. */
5508 if (input_stat_set
== 0)
5510 input_stat_set
= stat (gcc_input_filename
,
5512 if (input_stat_set
>= 0)
5516 /* If we have the stat for the gcc_input_filename
5517 and we can do the stat for the temp_filename
5518 then the they could still refer to the same
5519 file if st_dev/st_ino's are the same. */
5520 if (input_stat_set
!= 1
5521 || stat (temp_filename
, &st_temp
) < 0
5522 || input_stat
.st_dev
!= st_temp
.st_dev
5523 || input_stat
.st_ino
!= st_temp
.st_ino
)
5525 /* Just compare canonical pathnames. */
5526 char* input_realname
= lrealpath (gcc_input_filename
);
5527 char* temp_realname
= lrealpath (temp_filename
);
5528 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
5529 free (input_realname
);
5530 free (temp_realname
);
5535 = save_string (temp_filename
,
5536 temp_filename_length
- 1);
5537 obstack_grow (&obstack
, temp_filename
,
5538 temp_filename_length
);
5540 delete_this_arg
= 0;
5546 /* See if we already have an association of %g/%u/%U and
5548 for (t
= temp_names
; t
; t
= t
->next
)
5549 if (t
->length
== suffix_length
5550 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5551 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5554 /* Make a new association if needed. %u and %j
5556 if (t
== 0 || c
== 'u' || c
== 'j')
5560 t
= XNEW (struct temp_name
);
5561 t
->next
= temp_names
;
5564 t
->length
= suffix_length
;
5567 t
->suffix
= saved_suffix
;
5568 saved_suffix
= NULL
;
5571 t
->suffix
= save_string (suffix
, suffix_length
);
5572 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5573 temp_filename
= make_temp_file (t
->suffix
);
5574 temp_filename_length
= strlen (temp_filename
);
5575 t
->filename
= temp_filename
;
5576 t
->filename_length
= temp_filename_length
;
5579 free (saved_suffix
);
5581 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5582 delete_this_arg
= 1;
5590 /* We are going to expand `%i' into `@FILE', where FILE
5591 is a newly-created temporary filename. The filenames
5592 that would usually be expanded in place of %o will be
5593 written to the temporary file. */
5594 if (at_file_supplied
)
5597 for (i
= 0; (int) i
< n_infiles
; i
++)
5598 if (compile_input_file_p (&infiles
[i
]))
5600 store_arg (infiles
[i
].name
, 0, 0);
5601 infiles
[i
].compiled
= true;
5604 if (at_file_supplied
)
5609 obstack_grow (&obstack
, gcc_input_filename
,
5610 input_filename_length
);
5617 struct spec_path_info info
;
5621 do_spec_1 ("-imultilib", 1, NULL
);
5622 /* Make this a separate argument. */
5623 do_spec_1 (" ", 0, NULL
);
5624 do_spec_1 (multilib_dir
, 1, NULL
);
5625 do_spec_1 (" ", 0, NULL
);
5630 do_spec_1 ("-imultiarch", 1, NULL
);
5631 /* Make this a separate argument. */
5632 do_spec_1 (" ", 0, NULL
);
5633 do_spec_1 (multiarch_dir
, 1, NULL
);
5634 do_spec_1 (" ", 0, NULL
);
5637 if (gcc_exec_prefix
)
5639 do_spec_1 ("-iprefix", 1, NULL
);
5640 /* Make this a separate argument. */
5641 do_spec_1 (" ", 0, NULL
);
5642 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5643 do_spec_1 (" ", 0, NULL
);
5646 if (target_system_root_changed
||
5647 (target_system_root
&& target_sysroot_hdrs_suffix
))
5649 do_spec_1 ("-isysroot", 1, NULL
);
5650 /* Make this a separate argument. */
5651 do_spec_1 (" ", 0, NULL
);
5652 do_spec_1 (target_system_root
, 1, NULL
);
5653 if (target_sysroot_hdrs_suffix
)
5654 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5655 do_spec_1 (" ", 0, NULL
);
5658 info
.option
= "-isystem";
5659 info
.append
= "include";
5660 info
.append_len
= strlen (info
.append
);
5661 info
.omit_relative
= false;
5662 info
.separate_options
= true;
5664 for_each_path (&include_prefixes
, false, info
.append_len
,
5667 info
.append
= "include-fixed";
5668 if (*sysroot_hdrs_suffix_spec
)
5669 info
.append
= concat (info
.append
, dir_separator_str
,
5670 multilib_dir
, NULL
);
5671 info
.append_len
= strlen (info
.append
);
5672 for_each_path (&include_prefixes
, false, info
.append_len
,
5678 /* We are going to expand `%o' into `@FILE', where FILE
5679 is a newly-created temporary filename. The filenames
5680 that would usually be expanded in place of %o will be
5681 written to the temporary file. */
5682 if (at_file_supplied
)
5685 for (i
= 0; i
< n_infiles
+ lang_specific_extra_outfiles
; i
++)
5687 store_arg (outfiles
[i
], 0, 0);
5689 if (at_file_supplied
)
5694 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5699 this_is_library_file
= 1;
5703 this_is_linker_script
= 1;
5707 outfiles
[input_file_number
] = NULL
;
5711 this_is_output_file
= 1;
5716 unsigned int cur_index
= argbuf
.length ();
5717 /* Handle the {...} following the %W. */
5719 fatal_error (input_location
,
5720 "spec %qs has invalid %<%%W%c%>", spec
, *p
);
5721 p
= handle_braces (p
+ 1);
5725 /* If any args were output, mark the last one for deletion
5727 if (argbuf
.length () != cur_index
)
5728 record_temp_file (argbuf
.last (), 0, 1);
5733 /* Handle the {...} following the %@. */
5735 fatal_error (input_location
,
5736 "spec %qs has invalid %<%%@%c%>", spec
, *p
);
5737 if (at_file_supplied
)
5739 p
= handle_braces (p
+ 1);
5740 if (at_file_supplied
)
5746 /* %x{OPTION} records OPTION for %X to output. */
5754 /* Skip past the option value and make a copy. */
5756 fatal_error (input_location
,
5757 "spec %qs has invalid %<%%x%c%>", spec
, *p
);
5760 string
= save_string (p1
+ 1, p
- p1
- 2);
5762 /* See if we already recorded this option. */
5763 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5764 if (! strcmp (string
, opt
))
5770 /* This option is new; add it. */
5771 add_linker_option (string
, strlen (string
));
5776 /* Dump out the options accumulated previously using %x. */
5778 do_specs_vec (linker_options
);
5781 /* Dump out the options accumulated previously using -Wa,. */
5783 do_specs_vec (assembler_options
);
5786 /* Dump out the options accumulated previously using -Wp,. */
5788 do_specs_vec (preprocessor_options
);
5791 /* Here are digits and numbers that just process
5792 a certain constant string as a spec. */
5795 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5801 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5807 value
= do_spec_1 (asm_spec
, 0, NULL
);
5813 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5820 const char *const spec
5821 = (input_file_compiler
->cpp_spec
5822 ? input_file_compiler
->cpp_spec
5824 value
= do_spec_1 (spec
, 0, NULL
);
5831 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5837 value
= do_spec_1 (link_spec
, 0, NULL
);
5843 value
= do_spec_1 (lib_spec
, 0, NULL
);
5849 if (multilib_os_dir
== NULL
)
5850 obstack_1grow (&obstack
, '.');
5852 obstack_grow (&obstack
, multilib_os_dir
,
5853 strlen (multilib_os_dir
));
5857 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5863 /* We assume there is a directory
5864 separator at the end of this string. */
5865 if (target_system_root
)
5867 obstack_grow (&obstack
, target_system_root
,
5868 strlen (target_system_root
));
5869 if (target_sysroot_suffix
)
5870 obstack_grow (&obstack
, target_sysroot_suffix
,
5871 strlen (target_sysroot_suffix
));
5876 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5881 /* Here we define characters other than letters and digits. */
5884 p
= handle_braces (p
);
5890 p
= handle_spec_function (p
, NULL
, soft_matched_part
);
5896 obstack_1grow (&obstack
, '%');
5903 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5905 suffix_subst
= save_string (p
- 1, len
+ 1);
5910 /* Henceforth ignore the option(s) matching the pattern
5916 int have_wildcard
= 0;
5921 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5923 switch_option
= SWITCH_IGNORE
;
5925 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5928 if (p
[len
-1] == '*')
5931 for (i
= 0; i
< n_switches
; i
++)
5932 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5933 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5935 switches
[i
].live_cond
|= switch_option
;
5936 /* User switch be validated from validate_all_switches.
5937 when the definition is seen from the spec file.
5938 If not defined anywhere, will be rejected. */
5939 if (switches
[i
].known
)
5940 switches
[i
].validated
= true;
5948 if (soft_matched_part
)
5950 if (soft_matched_part
[0])
5951 do_spec_1 (soft_matched_part
, 1, NULL
);
5952 /* Only insert a space after the substitution if it is at the
5953 end of the current sequence. So if:
5955 "%{foo=*:bar%*}%{foo=*:one%*two}"
5957 matches -foo=hello then it will produce:
5959 barhello onehellotwo
5961 if (*p
== 0 || *p
== '}')
5962 do_spec_1 (" ", 0, NULL
);
5965 /* Catch the case where a spec string contains something like
5966 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5967 hand side of the :. */
5968 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5971 /* Process a string found as the value of a spec given by name.
5972 This feature allows individual machine descriptions
5973 to add and use their own specs. */
5976 const char *name
= p
;
5977 struct spec_list
*sl
;
5980 /* The string after the S/P is the name of a spec that is to be
5982 while (*p
&& *p
!= ')')
5985 /* See if it's in the list. */
5986 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5987 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5989 name
= *(sl
->ptr_spec
);
5991 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
5999 value
= do_spec_1 (name
, 0, NULL
);
6004 /* Discard the closing paren. */
6011 error ("spec failure: unrecognized spec option %qc", c
);
6017 /* Backslash: treat next character as ordinary. */
6022 /* Ordinary character: put it into the current argument. */
6023 obstack_1grow (&obstack
, c
);
6027 /* End of string. If we are processing a spec function, we need to
6028 end any pending argument. */
6029 if (processing_spec_function
)
6035 /* Look up a spec function. */
6037 static const struct spec_function
*
6038 lookup_spec_function (const char *name
)
6040 const struct spec_function
*sf
;
6042 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
6043 if (strcmp (sf
->name
, name
) == 0)
6049 /* Evaluate a spec function. */
6052 eval_spec_function (const char *func
, const char *args
,
6053 const char *soft_matched_part
)
6055 const struct spec_function
*sf
;
6056 const char *funcval
;
6058 /* Saved spec processing context. */
6059 vec
<const_char_p
> save_argbuf
;
6062 int save_delete_this_arg
;
6063 int save_this_is_output_file
;
6064 int save_this_is_library_file
;
6065 int save_input_from_pipe
;
6066 int save_this_is_linker_script
;
6067 const char *save_suffix_subst
;
6069 int save_growing_size
;
6070 void *save_growing_value
= NULL
;
6072 sf
= lookup_spec_function (func
);
6074 fatal_error (input_location
, "unknown spec function %qs", func
);
6076 /* Push the spec processing context. */
6077 save_argbuf
= argbuf
;
6079 save_arg_going
= arg_going
;
6080 save_delete_this_arg
= delete_this_arg
;
6081 save_this_is_output_file
= this_is_output_file
;
6082 save_this_is_library_file
= this_is_library_file
;
6083 save_this_is_linker_script
= this_is_linker_script
;
6084 save_input_from_pipe
= input_from_pipe
;
6085 save_suffix_subst
= suffix_subst
;
6087 /* If we have some object growing now, finalize it so the args and function
6088 eval proceed from a cleared context. This is needed to prevent the first
6089 constructed arg from mistakenly including the growing value. We'll push
6090 this value back on the obstack once the function evaluation is done, to
6091 restore a consistent processing context for our caller. This is fine as
6092 the address of growing objects isn't guaranteed to remain stable until
6093 they are finalized, and we expect this situation to be rare enough for
6094 the extra copy not to be an issue. */
6095 save_growing_size
= obstack_object_size (&obstack
);
6096 if (save_growing_size
> 0)
6097 save_growing_value
= obstack_finish (&obstack
);
6099 /* Create a new spec processing context, and build the function
6103 if (do_spec_2 (args
, soft_matched_part
) < 0)
6104 fatal_error (input_location
, "error in args to spec function %qs", func
);
6106 /* argbuf_index is an index for the next argument to be inserted, and
6107 so contains the count of the args already inserted. */
6109 funcval
= (*sf
->func
) (argbuf
.length (),
6112 /* Pop the spec processing context. */
6114 argbuf
= save_argbuf
;
6116 arg_going
= save_arg_going
;
6117 delete_this_arg
= save_delete_this_arg
;
6118 this_is_output_file
= save_this_is_output_file
;
6119 this_is_library_file
= save_this_is_library_file
;
6120 this_is_linker_script
= save_this_is_linker_script
;
6121 input_from_pipe
= save_input_from_pipe
;
6122 suffix_subst
= save_suffix_subst
;
6124 if (save_growing_size
> 0)
6125 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
6130 /* Handle a spec function call of the form:
6134 ARGS is processed as a spec in a separate context and split into an
6135 argument vector in the normal fashion. The function returns a string
6136 containing a spec which we then process in the caller's context, or
6137 NULL if no processing is required.
6139 If RETVAL_NONNULL is not NULL, then store a bool whether function
6142 SOFT_MATCHED_PART holds the current value of a matched * pattern, which
6143 may be re-expanded with a %* as part of the function arguments. */
6146 handle_spec_function (const char *p
, bool *retval_nonnull
,
6147 const char *soft_matched_part
)
6150 const char *endp
, *funcval
;
6153 processing_spec_function
++;
6155 /* Get the function name. */
6156 for (endp
= p
; *endp
!= '\0'; endp
++)
6158 if (*endp
== '(') /* ) */
6160 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6161 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6162 fatal_error (input_location
, "malformed spec function name");
6164 if (*endp
!= '(') /* ) */
6165 fatal_error (input_location
, "no arguments for spec function");
6166 func
= save_string (p
, endp
- p
);
6169 /* Get the arguments. */
6170 for (count
= 0; *endp
!= '\0'; endp
++)
6179 else if (*endp
== '(') /* ) */
6184 fatal_error (input_location
, "malformed spec function arguments");
6185 args
= save_string (p
, endp
- p
);
6188 /* p now points to just past the end of the spec function expression. */
6190 funcval
= eval_spec_function (func
, args
, soft_matched_part
);
6191 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6194 *retval_nonnull
= funcval
!= NULL
;
6199 processing_spec_function
--;
6204 /* Inline subroutine of handle_braces. Returns true if the current
6205 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6207 input_suffix_matches (const char *atom
, const char *end_atom
)
6209 return (input_suffix
6210 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6211 && input_suffix
[end_atom
- atom
] == '\0');
6214 /* Subroutine of handle_braces. Returns true if the current
6215 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6217 input_spec_matches (const char *atom
, const char *end_atom
)
6219 return (input_file_compiler
6220 && input_file_compiler
->suffix
6221 && input_file_compiler
->suffix
[0] != '\0'
6222 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6224 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6227 /* Subroutine of handle_braces. Returns true if a switch
6228 matching the atom bracketed by ATOM and END_ATOM appeared on the
6231 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6234 int len
= end_atom
- atom
;
6235 int plen
= starred
? len
: -1;
6237 for (i
= 0; i
< n_switches
; i
++)
6238 if (!strncmp (switches
[i
].part1
, atom
, len
)
6239 && (starred
|| switches
[i
].part1
[len
] == '\0')
6240 && check_live_switch (i
, plen
))
6243 /* Check if a switch with separated form matching the atom.
6244 We check -D and -U switches. */
6245 else if (switches
[i
].args
!= 0)
6247 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
6248 && *switches
[i
].part1
== atom
[0])
6250 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
6251 && (starred
|| (switches
[i
].part1
[1] == '\0'
6252 && switches
[i
].args
[0][len
- 1] == '\0'))
6253 && check_live_switch (i
, (starred
? 1 : -1)))
6261 /* Inline subroutine of handle_braces. Mark all of the switches which
6262 match ATOM (extends to END_ATOM; STARRED indicates whether there
6263 was a star after the atom) for later processing. */
6265 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6268 int len
= end_atom
- atom
;
6269 int plen
= starred
? len
: -1;
6271 for (i
= 0; i
< n_switches
; i
++)
6272 if (!strncmp (switches
[i
].part1
, atom
, len
)
6273 && (starred
|| switches
[i
].part1
[len
] == '\0')
6274 && check_live_switch (i
, plen
))
6275 switches
[i
].ordering
= 1;
6278 /* Inline subroutine of handle_braces. Process all the currently
6279 marked switches through give_switch, and clear the marks. */
6281 process_marked_switches (void)
6285 for (i
= 0; i
< n_switches
; i
++)
6286 if (switches
[i
].ordering
== 1)
6288 switches
[i
].ordering
= 0;
6293 /* Handle a %{ ... } construct. P points just inside the leading {.
6294 Returns a pointer one past the end of the brace block, or 0
6295 if we call do_spec_1 and that returns -1. */
6298 handle_braces (const char *p
)
6300 const char *atom
, *end_atom
;
6301 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6302 char *esc_buf
= NULL
, *d_esc_buf
= NULL
;
6304 const char *orig
= p
;
6312 bool a_must_be_last
= false;
6313 bool ordered_set
= false;
6314 bool disjunct_set
= false;
6315 bool disj_matched
= false;
6316 bool disj_starred
= true;
6317 bool n_way_choice
= false;
6318 bool n_way_matched
= false;
6320 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6327 /* Scan one "atom" (S in the description above of %{}, possibly
6328 with '!', '.', '@', ',', or '*' modifiers). */
6330 a_is_suffix
= false;
6331 a_is_starred
= false;
6332 a_is_negated
= false;
6333 a_is_spectype
= false;
6337 p
++, a_is_negated
= true;
6340 if (*p
== '%' && p
[1] == ':')
6344 p
= handle_spec_function (p
+ 2, &a_matched
, NULL
);
6349 p
++, a_is_suffix
= true;
6351 p
++, a_is_spectype
= true;
6355 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6356 || *p
== ',' || *p
== '.' || *p
== '@' || *p
== '\\')
6362 fatal_error (input_location
,
6363 "braced spec %qs ends in escape", orig
);
6375 if (esc_buf
&& esc_buf
!= d_esc_buf
)
6378 ep
= esc_buf
= (char *) xmalloc (end_atom
- atom
- esc
+ 1);
6379 for (ap
= atom
; ap
!= end_atom
; ap
++, ep
++)
6391 p
++, a_is_starred
= 1;
6398 /* Substitute the switch(es) indicated by the current atom. */
6400 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6401 || a_is_spectype
|| atom
== end_atom
)
6404 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6407 process_marked_switches ();
6411 /* Substitute some text if the current atom appears as a switch
6413 disjunct_set
= true;
6417 if (atom
&& atom
== end_atom
)
6419 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6420 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6424 /* An empty term may appear as the last choice of an
6425 N-way choice set; it means "otherwise". */
6426 a_must_be_last
= true;
6427 disj_matched
= !n_way_matched
;
6428 disj_starred
= false;
6432 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6436 disj_starred
= false;
6438 /* Don't bother testing this atom if we already have a
6440 if (!disj_matched
&& !n_way_matched
)
6443 /* a_matched is already set by handle_spec_function. */;
6444 else if (a_is_suffix
)
6445 a_matched
= input_suffix_matches (atom
, end_atom
);
6446 else if (a_is_spectype
)
6447 a_matched
= input_spec_matches (atom
, end_atom
);
6449 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6451 if (a_matched
!= a_is_negated
)
6453 disj_matched
= true;
6455 d_end_atom
= end_atom
;
6456 d_esc_buf
= esc_buf
;
6463 /* Found the body, that is, the text to substitute if the
6464 current disjunction matches. */
6465 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6466 disj_matched
&& !n_way_matched
);
6470 /* If we have an N-way choice, reset state for the next
6474 n_way_choice
= true;
6475 n_way_matched
|= disj_matched
;
6476 disj_matched
= false;
6477 disj_starred
= true;
6478 d_atom
= d_end_atom
= NULL
;
6487 while (*p
++ != '}');
6490 if (d_esc_buf
&& d_esc_buf
!= esc_buf
)
6498 fatal_error (input_location
, "braced spec %qs is invalid at %qc", orig
, *p
);
6503 /* Subroutine of handle_braces. Scan and process a brace substitution body
6504 (X in the description of %{} syntax). P points one past the colon;
6505 ATOM and END_ATOM bracket the first atom which was found to be true
6506 (present) in the current disjunction; STARRED indicates whether all
6507 the atoms in the current disjunction were starred (for syntax validation);
6508 MATCHED indicates whether the disjunction matched or not, and therefore
6509 whether or not the body is to be processed through do_spec_1 or just
6510 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6514 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6515 int starred
, int matched
)
6517 const char *body
, *end_body
;
6518 unsigned int nesting_level
;
6519 bool have_subst
= false;
6521 /* Locate the closing } or ;, honoring nested braces.
6522 Trim trailing whitespace. */
6531 if (!--nesting_level
)
6534 else if (*p
== ';' && nesting_level
== 1)
6536 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6538 else if (*p
== '\0')
6544 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6547 if (have_subst
&& !starred
)
6552 /* Copy the substitution body to permanent storage and execute it.
6553 If have_subst is false, this is a simple matter of running the
6554 body through do_spec_1... */
6555 char *string
= save_string (body
, end_body
- body
);
6558 if (do_spec_1 (string
, 0, NULL
) < 0)
6566 /* ... but if have_subst is true, we have to process the
6567 body once for each matching switch, with %* set to the
6568 variant part of the switch. */
6569 unsigned int hard_match_len
= end_atom
- atom
;
6572 for (i
= 0; i
< n_switches
; i
++)
6573 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6574 && check_live_switch (i
, hard_match_len
))
6576 if (do_spec_1 (string
, 0,
6577 &switches
[i
].part1
[hard_match_len
]) < 0)
6582 /* Pass any arguments this switch has. */
6584 suffix_subst
= NULL
;
6593 fatal_error (input_location
, "braced spec body %qs is invalid", body
);
6596 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6597 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6598 spec, or -1 if either exact match or %* is used.
6600 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
6601 whose value does not begin with "no-" is obsoleted by the same value
6602 with the "no-", similarly for a switch with the "no-" prefix. */
6605 check_live_switch (int switchnum
, int prefix_length
)
6607 const char *name
= switches
[switchnum
].part1
;
6610 /* If we already processed this switch and determined if it was
6611 live or not, return our past determination. */
6612 if (switches
[switchnum
].live_cond
!= 0)
6613 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6614 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6615 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6618 /* In the common case of {<at-most-one-letter>*}, a negating
6619 switch would always match, so ignore that case. We will just
6620 send the conflicting switches to the compiler phase. */
6621 if (prefix_length
>= 0 && prefix_length
<= 1)
6624 /* Now search for duplicate in a manner that depends on the name. */
6628 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6629 if (switches
[i
].part1
[0] == 'O')
6631 switches
[switchnum
].validated
= true;
6632 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6637 case 'W': case 'f': case 'm': case 'g':
6638 if (! strncmp (name
+ 1, "no-", 3))
6640 /* We have Xno-YYY, search for XYYY. */
6641 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6642 if (switches
[i
].part1
[0] == name
[0]
6643 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6645 /* --specs are validated with the validate_switches mechanism. */
6646 if (switches
[switchnum
].known
)
6647 switches
[switchnum
].validated
= true;
6648 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6654 /* We have XYYY, search for Xno-YYY. */
6655 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6656 if (switches
[i
].part1
[0] == name
[0]
6657 && switches
[i
].part1
[1] == 'n'
6658 && switches
[i
].part1
[2] == 'o'
6659 && switches
[i
].part1
[3] == '-'
6660 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6662 /* --specs are validated with the validate_switches mechanism. */
6663 if (switches
[switchnum
].known
)
6664 switches
[switchnum
].validated
= true;
6665 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6672 /* Otherwise the switch is live. */
6673 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6677 /* Pass a switch to the current accumulating command
6678 in the same form that we received it.
6679 SWITCHNUM identifies the switch; it is an index into
6680 the vector of switches gcc received, which is `switches'.
6681 This cannot fail since it never finishes a command line.
6683 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6686 give_switch (int switchnum
, int omit_first_word
)
6688 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6691 if (!omit_first_word
)
6693 do_spec_1 ("-", 0, NULL
);
6694 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6697 if (switches
[switchnum
].args
!= 0)
6700 for (p
= switches
[switchnum
].args
; *p
; p
++)
6702 const char *arg
= *p
;
6704 do_spec_1 (" ", 0, NULL
);
6707 unsigned length
= strlen (arg
);
6710 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6711 if (arg
[length
] == '.')
6713 (CONST_CAST (char *, arg
))[length
] = 0;
6717 do_spec_1 (arg
, 1, NULL
);
6719 (CONST_CAST (char *, arg
))[length
] = '.';
6720 do_spec_1 (suffix_subst
, 1, NULL
);
6723 do_spec_1 (arg
, 1, NULL
);
6727 do_spec_1 (" ", 0, NULL
);
6728 switches
[switchnum
].validated
= true;
6731 /* Print GCC configuration (e.g. version, thread model, target,
6732 configuration_arguments) to a given FILE. */
6735 print_configuration (FILE *file
)
6740 fnotice (file
, "Target: %s\n", spec_machine
);
6741 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
6743 #ifdef THREAD_MODEL_SPEC
6744 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6745 but there's no point in doing all this processing just to get
6746 thread_model back. */
6747 obstack_init (&obstack
);
6748 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6749 obstack_1grow (&obstack
, '\0');
6750 thrmod
= XOBFINISH (&obstack
, const char *);
6752 thrmod
= thread_model
;
6755 fnotice (file
, "Thread model: %s\n", thrmod
);
6757 /* compiler_version is truncated at the first space when initialized
6758 from version string, so truncate version_string at the first space
6759 before comparing. */
6760 for (n
= 0; version_string
[n
]; n
++)
6761 if (version_string
[n
] == ' ')
6764 if (! strncmp (version_string
, compiler_version
, n
)
6765 && compiler_version
[n
] == 0)
6766 fnotice (file
, "gcc version %s %s\n", version_string
,
6769 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n",
6770 version_string
, pkgversion_string
, compiler_version
);
6774 #define RETRY_ICE_ATTEMPTS 3
6776 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
6779 files_equal_p (char *file1
, char *file2
)
6781 struct stat st1
, st2
;
6784 const int bufsize
= 8192;
6785 char *buf
= XNEWVEC (char, bufsize
);
6787 fd1
= open (file1
, O_RDONLY
);
6788 fd2
= open (file2
, O_RDONLY
);
6790 if (fd1
< 0 || fd2
< 0)
6793 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
6796 if (st1
.st_size
!= st2
.st_size
)
6799 for (n
= st1
.st_size
; n
; n
-= len
)
6802 if ((int) len
> bufsize
/ 2)
6805 if (read (fd1
, buf
, len
) != (int) len
6806 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
6811 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
6828 /* Check that compiler's output doesn't differ across runs.
6829 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
6830 stdout and stderr for each compiler run. Return true if all of
6831 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
6834 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
6837 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
6839 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
6840 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
6842 fnotice (stderr
, "The bug is not reproducible, so it is"
6843 " likely a hardware or OS problem.\n");
6847 return i
== RETRY_ICE_ATTEMPTS
- 2;
6850 enum attempt_status
{
6851 ATTEMPT_STATUS_FAIL_TO_RUN
,
6852 ATTEMPT_STATUS_SUCCESS
,
6857 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
6858 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
6859 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
6860 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
6861 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
6862 ATTEMPT_STATUS_SUCCESS otherwise. */
6864 static enum attempt_status
6865 run_attempt (const char **new_argv
, const char *out_temp
,
6866 const char *err_temp
, int emit_system_info
, int append
)
6869 if (emit_system_info
)
6871 FILE *file_out
= fopen (err_temp
, "a");
6872 print_configuration (file_out
);
6873 fputs ("\n", file_out
);
6879 struct pex_obj
*pex
;
6881 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
6882 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
6885 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
6887 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
6889 fatal_error (input_location
, "pex_init failed: %m");
6891 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
6892 CONST_CAST2 (char *const *, const char **, &new_argv
[1]), out_temp
,
6897 fatal_error (input_location
,
6898 err
? G_ ("cannot execute %qs: %s: %m")
6899 : G_ ("cannot execute %qs: %s"),
6900 new_argv
[0], errmsg
);
6903 if (!pex_get_status (pex
, 1, &exit_status
))
6906 switch (WEXITSTATUS (exit_status
))
6909 status
= ATTEMPT_STATUS_ICE
;
6912 case SUCCESS_EXIT_CODE
:
6913 status
= ATTEMPT_STATUS_SUCCESS
;
6925 /* This routine reads lines from IN file, adds C++ style comments
6926 at the begining of each line and writes result into OUT. */
6929 insert_comments (const char *file_in
, const char *file_out
)
6931 FILE *in
= fopen (file_in
, "rb");
6932 FILE *out
= fopen (file_out
, "wb");
6935 bool add_comment
= true;
6936 while (fgets (line
, sizeof (line
), in
))
6941 add_comment
= strchr (line
, '\n') != NULL
;
6948 /* This routine adds preprocessed source code into the given ERR_FILE.
6949 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
6950 add information in report file. RUN_ATTEMPT should return
6951 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
6954 do_report_bug (const char **new_argv
, const int nargs
,
6955 char **out_file
, char **err_file
)
6958 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
6961 write (fd
, "\n//", 3);
6962 for (i
= 0; i
< nargs
; i
++)
6965 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
6967 write (fd
, "\n\n", 2);
6969 new_argv
[nargs
] = "-E";
6970 new_argv
[nargs
+ 1] = NULL
;
6972 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
6974 if (status
== ATTEMPT_STATUS_SUCCESS
)
6976 fnotice (stderr
, "Preprocessed source stored into %s file,"
6977 " please attach this to your bugreport.\n", *out_file
);
6978 /* Make sure it is not deleted. */
6984 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
6985 containing GCC configuration, backtrace, compiler's command line options
6986 and preprocessed source code. */
6989 try_generate_repro (const char **argv
)
6991 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
6992 const char **new_argv
;
6993 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
6994 char **temp_stdout_files
= &temp_files
[0];
6995 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
6997 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
7000 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
7001 /* Only retry compiler ICEs, not preprocessor ones. */
7002 if (! strcmp (argv
[nargs
], "-E"))
7004 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
7011 /* If the compiler is going to output any time information,
7012 it might varry between invocations. */
7013 else if (! strcmp (argv
[nargs
], "-quiet"))
7015 else if (! strcmp (argv
[nargs
], "-ftime-report"))
7018 if (out_arg
== -1 || !quiet
)
7021 memset (temp_files
, '\0', sizeof (temp_files
));
7022 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
7023 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
7024 new_argv
[nargs
++] = "-frandom-seed=0";
7025 new_argv
[nargs
++] = "-fdump-noaddr";
7026 new_argv
[nargs
] = NULL
;
7027 if (new_argv
[out_arg
][2] == '\0')
7028 new_argv
[out_arg
+ 1] = "-";
7030 new_argv
[out_arg
] = "-o-";
7033 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
7035 int emit_system_info
= 0;
7037 temp_stdout_files
[attempt
] = make_temp_file (".out");
7038 temp_stderr_files
[attempt
] = make_temp_file (".err");
7040 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
7043 emit_system_info
= 1;
7046 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
7047 temp_stderr_files
[attempt
], emit_system_info
,
7050 if (status
!= ATTEMPT_STATUS_ICE
)
7052 fnotice (stderr
, "The bug is not reproducible, so it is"
7053 " likely a hardware or OS problem.\n");
7058 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
7062 /* Insert commented out backtrace into report file. */
7063 char **stderr_commented
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
7064 insert_comments (temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
7067 /* In final attempt we append compiler options and preprocesssed code to last
7068 generated .out file with configuration and backtrace. */
7069 char **err
= &temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1];
7070 do_report_bug (new_argv
, nargs
, stderr_commented
, err
);
7074 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
7077 unlink (temp_stdout_files
[i
]);
7078 free (temp_stdout_files
[i
]);
7082 /* Search for a file named NAME trying various prefixes including the
7083 user's -B prefix and some standard ones.
7084 Return the absolute file name found. If nothing is found, return NAME. */
7087 find_file (const char *name
)
7089 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
7090 return newname
? newname
: name
;
7093 /* Determine whether a directory exists. If LINKER, return 0 for
7094 certain fixed names not needed by the linker. */
7097 is_directory (const char *path1
, bool linker
)
7104 /* Ensure the string ends with "/.". The resulting path will be a
7105 directory even if the given path is a symbolic link. */
7106 len1
= strlen (path1
);
7107 path
= (char *) alloca (3 + len1
);
7108 memcpy (path
, path1
, len1
);
7110 if (!IS_DIR_SEPARATOR (cp
[-1]))
7111 *cp
++ = DIR_SEPARATOR
;
7115 /* Exclude directories that the linker is known to search. */
7117 && IS_DIR_SEPARATOR (path
[0])
7119 && filename_ncmp (path
+ 1, "lib", 3) == 0)
7121 && filename_ncmp (path
+ 1, "usr", 3) == 0
7122 && IS_DIR_SEPARATOR (path
[4])
7123 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
7126 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
7129 /* Set up the various global variables to indicate that we're processing
7130 the input file named FILENAME. */
7133 set_input (const char *filename
)
7137 gcc_input_filename
= filename
;
7138 input_filename_length
= strlen (gcc_input_filename
);
7139 input_basename
= lbasename (gcc_input_filename
);
7141 /* Find a suffix starting with the last period,
7142 and set basename_length to exclude that suffix. */
7143 basename_length
= strlen (input_basename
);
7144 suffixed_basename_length
= basename_length
;
7145 p
= input_basename
+ basename_length
;
7146 while (p
!= input_basename
&& *p
!= '.')
7148 if (*p
== '.' && p
!= input_basename
)
7150 basename_length
= p
- input_basename
;
7151 input_suffix
= p
+ 1;
7156 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
7157 we will need to do a stat on the gcc_input_filename. The
7158 INPUT_STAT_SET signals that the stat is needed. */
7162 /* On fatal signals, delete all the temporary files. */
7165 fatal_signal (int signum
)
7167 signal (signum
, SIG_DFL
);
7168 delete_failure_queue ();
7169 delete_temp_files ();
7170 /* Get the same signal again, this time not handled,
7171 so its normal effect occurs. */
7172 kill (getpid (), signum
);
7175 /* Compare the contents of the two files named CMPFILE[0] and
7176 CMPFILE[1]. Return zero if they're identical, nonzero
7180 compare_files (char *cmpfile
[])
7183 FILE *temp
[2] = { NULL
, NULL
};
7189 void *map
[2] = { NULL
, NULL
};
7191 for (i
= 0; i
< 2; i
++)
7195 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
7197 error ("%s: could not determine length of compare-debug file %s",
7198 gcc_input_filename
, cmpfile
[i
]);
7203 length
[i
] = st
.st_size
;
7206 if (!ret
&& length
[0] != length
[1])
7208 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
7213 for (i
= 0; i
< 2; i
++)
7215 int fd
= open (cmpfile
[i
], O_RDONLY
);
7218 error ("%s: could not open compare-debug file %s",
7219 gcc_input_filename
, cmpfile
[i
]);
7224 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
7227 if (map
[i
] == (void *) MAP_FAILED
)
7236 if (memcmp (map
[0], map
[1], length
[0]) != 0)
7238 error ("%s: -fcompare-debug failure", gcc_input_filename
);
7243 for (i
= 0; i
< 2; i
++)
7245 munmap ((caddr_t
) map
[i
], length
[i
]);
7254 for (i
= 0; i
< 2; i
++)
7256 temp
[i
] = fopen (cmpfile
[i
], "r");
7259 error ("%s: could not open compare-debug file %s",
7260 gcc_input_filename
, cmpfile
[i
]);
7266 if (!ret
&& temp
[0] && temp
[1])
7270 c0
= fgetc (temp
[0]);
7271 c1
= fgetc (temp
[1]);
7275 error ("%s: -fcompare-debug failure",
7276 gcc_input_filename
);
7285 for (i
= 1; i
>= 0; i
--)
7294 driver::driver (bool can_finalize
, bool debug
) :
7295 explicit_link_files (NULL
),
7296 decoded_options (NULL
)
7298 env
.init (can_finalize
, debug
);
7303 XDELETEVEC (explicit_link_files
);
7304 XDELETEVEC (decoded_options
);
7307 /* driver::main is implemented as a series of driver:: method calls. */
7310 driver::main (int argc
, char **argv
)
7314 set_progname (argv
[0]);
7315 expand_at_files (&argc
, &argv
);
7316 decode_argv (argc
, const_cast <const char **> (argv
));
7317 global_initializations ();
7318 build_multilib_strings ();
7320 putenv_COLLECT_GCC (argv
[0]);
7321 maybe_putenv_COLLECT_LTO_WRAPPER ();
7322 maybe_putenv_OFFLOAD_TARGETS ();
7323 handle_unrecognized_options ();
7327 m_option_proposer
.suggest_completion (completion
);
7331 if (!maybe_print_and_exit ())
7334 early_exit
= prepare_infiles ();
7336 return get_exit_code ();
7338 do_spec_on_infiles ();
7339 maybe_run_linker (argv
[0]);
7341 return get_exit_code ();
7344 /* Locate the final component of argv[0] after any leading path, and set
7345 the program name accordingly. */
7348 driver::set_progname (const char *argv0
) const
7350 const char *p
= argv0
+ strlen (argv0
);
7351 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
7355 xmalloc_set_program_name (progname
);
7358 /* Expand any @ files within the command-line args,
7359 setting at_file_supplied if any were expanded. */
7362 driver::expand_at_files (int *argc
, char ***argv
) const
7364 char **old_argv
= *argv
;
7366 expandargv (argc
, argv
);
7368 /* Determine if any expansions were made. */
7369 if (*argv
!= old_argv
)
7370 at_file_supplied
= true;
7373 /* Decode the command-line arguments from argc/argv into the
7374 decoded_options array. */
7377 driver::decode_argv (int argc
, const char **argv
)
7379 /* Register the language-independent parameters. */
7380 global_init_params ();
7383 init_opts_obstack ();
7384 init_options_struct (&global_options
, &global_options_set
);
7386 decode_cmdline_options_to_array (argc
, argv
,
7388 &decoded_options
, &decoded_options_count
);
7391 /* Perform various initializations and setup. */
7394 driver::global_initializations ()
7396 /* Unlock the stdio streams. */
7397 unlock_std_streams ();
7399 gcc_init_libintl ();
7401 diagnostic_initialize (global_dc
, 0);
7402 diagnostic_color_init (global_dc
);
7404 #ifdef GCC_DRIVER_HOST_INITIALIZATION
7405 /* Perform host dependent initialization when needed. */
7406 GCC_DRIVER_HOST_INITIALIZATION
;
7409 if (atexit (delete_temp_files
) != 0)
7410 fatal_error (input_location
, "atexit failed");
7412 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
7413 signal (SIGINT
, fatal_signal
);
7415 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
7416 signal (SIGHUP
, fatal_signal
);
7418 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
7419 signal (SIGTERM
, fatal_signal
);
7421 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
7422 signal (SIGPIPE
, fatal_signal
);
7425 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
7426 receive the signal. A different setting is inheritable */
7427 signal (SIGCHLD
, SIG_DFL
);
7430 /* Parsing and gimplification sometimes need quite large stack.
7431 Increase stack size limits if possible. */
7432 stack_limit_increase (64 * 1024 * 1024);
7434 /* Allocate the argument vector. */
7437 obstack_init (&obstack
);
7440 /* Build multilib_select, et. al from the separate lines that make up each
7441 multilib selection. */
7444 driver::build_multilib_strings () const
7448 const char *const *q
= multilib_raw
;
7451 obstack_init (&multilib_obstack
);
7452 while ((p
= *q
++) != (char *) 0)
7453 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7455 obstack_1grow (&multilib_obstack
, 0);
7456 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
7458 q
= multilib_matches_raw
;
7459 while ((p
= *q
++) != (char *) 0)
7460 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7462 obstack_1grow (&multilib_obstack
, 0);
7463 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
7465 q
= multilib_exclusions_raw
;
7466 while ((p
= *q
++) != (char *) 0)
7467 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7469 obstack_1grow (&multilib_obstack
, 0);
7470 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
7472 q
= multilib_reuse_raw
;
7473 while ((p
= *q
++) != (char *) 0)
7474 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7476 obstack_1grow (&multilib_obstack
, 0);
7477 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
7480 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
7483 obstack_1grow (&multilib_obstack
, ' ');
7484 obstack_grow (&multilib_obstack
,
7485 multilib_defaults_raw
[i
],
7486 strlen (multilib_defaults_raw
[i
]));
7490 obstack_1grow (&multilib_obstack
, 0);
7491 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
7495 /* Set up the spec-handling machinery. */
7498 driver::set_up_specs () const
7500 const char *spec_machine_suffix
;
7504 #ifdef INIT_ENVIRONMENT
7505 /* Set up any other necessary machine specific environment variables. */
7506 xputenv (INIT_ENVIRONMENT
);
7509 /* Make a table of what switches there are (switches, n_switches).
7510 Make a table of specified input files (infiles, n_infiles).
7511 Decode switches that are handled locally. */
7513 process_command (decoded_options_count
, decoded_options
);
7515 /* Initialize the vector of specs to just the default.
7516 This means one element containing 0s, as a terminator. */
7518 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
7519 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
7520 n_compilers
= n_default_compilers
;
7522 /* Read specs from a file if there is one. */
7524 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
7525 accel_dir_suffix
, dir_separator_str
, NULL
);
7526 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
7528 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
7529 /* Read the specs file unless it is a default one. */
7530 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
7531 read_specs (specs_file
, true, false);
7535 #ifdef ACCEL_COMPILER
7536 spec_machine_suffix
= machine_suffix
;
7538 spec_machine_suffix
= just_machine_suffix
;
7541 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
7542 for any override of as, ld and libraries. */
7543 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
7544 + strlen (spec_machine_suffix
) + sizeof ("specs"));
7545 strcpy (specs_file
, standard_exec_prefix
);
7546 strcat (specs_file
, spec_machine_suffix
);
7547 strcat (specs_file
, "specs");
7548 if (access (specs_file
, R_OK
) == 0)
7549 read_specs (specs_file
, true, false);
7551 /* Process any configure-time defaults specified for the command line
7552 options, via OPTION_DEFAULT_SPECS. */
7553 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
7554 do_option_spec (option_default_specs
[i
].name
,
7555 option_default_specs
[i
].spec
);
7557 /* Process DRIVER_SELF_SPECS, adding any new options to the end
7558 of the command line. */
7560 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
7561 do_self_spec (driver_self_specs
[i
]);
7563 /* If not cross-compiling, look for executables in the standard
7565 if (*cross_compile
== '0')
7567 if (*md_exec_prefix
)
7569 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
7570 PREFIX_PRIORITY_LAST
, 0, 0);
7574 /* Process sysroot_suffix_spec. */
7575 if (*sysroot_suffix_spec
!= 0
7576 && !no_sysroot_suffix
7577 && do_spec_2 (sysroot_suffix_spec
, NULL
) == 0)
7579 if (argbuf
.length () > 1)
7580 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
7581 else if (argbuf
.length () == 1)
7582 target_sysroot_suffix
= xstrdup (argbuf
.last ());
7585 #ifdef HAVE_LD_SYSROOT
7586 /* Pass the --sysroot option to the linker, if it supports that. If
7587 there is a sysroot_suffix_spec, it has already been processed by
7588 this point, so target_system_root really is the system root we
7590 if (target_system_root
)
7592 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7593 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
7594 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
7598 /* Process sysroot_hdrs_suffix_spec. */
7599 if (*sysroot_hdrs_suffix_spec
!= 0
7600 && !no_sysroot_suffix
7601 && do_spec_2 (sysroot_hdrs_suffix_spec
, NULL
) == 0)
7603 if (argbuf
.length () > 1)
7604 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7605 else if (argbuf
.length () == 1)
7606 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
7609 /* Look for startfiles in the standard places. */
7610 if (*startfile_prefix_spec
!= 0
7611 && do_spec_2 (startfile_prefix_spec
, NULL
) == 0
7612 && do_spec_1 (" ", 0, NULL
) == 0)
7616 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
7617 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
7618 PREFIX_PRIORITY_LAST
, 0, 1);
7620 /* We should eventually get rid of all these and stick to
7621 startfile_prefix_spec exclusively. */
7622 else if (*cross_compile
== '0' || target_system_root
)
7624 if (*md_startfile_prefix
)
7625 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7626 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7628 if (*md_startfile_prefix_1
)
7629 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7630 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7632 /* If standard_startfile_prefix is relative, base it on
7633 standard_exec_prefix. This lets us move the installed tree
7634 as a unit. If GCC_EXEC_PREFIX is defined, base
7635 standard_startfile_prefix on that as well.
7637 If the prefix is relative, only search it for native compilers;
7638 otherwise we will search a directory containing host libraries. */
7639 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7640 add_sysrooted_prefix (&startfile_prefixes
,
7641 standard_startfile_prefix
, "BINUTILS",
7642 PREFIX_PRIORITY_LAST
, 0, 1);
7643 else if (*cross_compile
== '0')
7645 add_prefix (&startfile_prefixes
,
7646 concat (gcc_exec_prefix
7647 ? gcc_exec_prefix
: standard_exec_prefix
,
7649 standard_startfile_prefix
, NULL
),
7650 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7653 /* Sysrooted prefixes are relocated because target_system_root is
7654 also relocated by gcc_exec_prefix. */
7655 if (*standard_startfile_prefix_1
)
7656 add_sysrooted_prefix (&startfile_prefixes
,
7657 standard_startfile_prefix_1
, "BINUTILS",
7658 PREFIX_PRIORITY_LAST
, 0, 1);
7659 if (*standard_startfile_prefix_2
)
7660 add_sysrooted_prefix (&startfile_prefixes
,
7661 standard_startfile_prefix_2
, "BINUTILS",
7662 PREFIX_PRIORITY_LAST
, 0, 1);
7665 /* Process any user specified specs in the order given on the command
7667 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7669 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7671 read_specs (filename
? filename
: uptr
->filename
, false, true);
7674 /* Process any user self specs. */
7676 struct spec_list
*sl
;
7677 for (sl
= specs
; sl
; sl
= sl
->next
)
7678 if (sl
->name_len
== sizeof "self_spec" - 1
7679 && !strcmp (sl
->name
, "self_spec"))
7680 do_self_spec (*sl
->ptr_spec
);
7685 enum save_temps save
;
7687 if (!compare_debug_second
)
7689 n_switches_debug_check
[1] = n_switches
;
7690 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7691 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
7694 do_self_spec ("%:compare-debug-self-opt()");
7695 n_switches_debug_check
[0] = n_switches
;
7696 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
7697 switches_debug_check
[0] = switches
;
7699 n_switches
= n_switches_debug_check
[1];
7700 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7701 switches
= switches_debug_check
[1];
7704 /* Avoid crash when computing %j in this early. */
7705 save
= save_temps_flag
;
7706 save_temps_flag
= SAVE_TEMPS_NONE
;
7708 compare_debug
= -compare_debug
;
7709 do_self_spec ("%:compare-debug-self-opt()");
7711 save_temps_flag
= save
;
7713 if (!compare_debug_second
)
7715 n_switches_debug_check
[1] = n_switches
;
7716 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7717 switches_debug_check
[1] = switches
;
7718 compare_debug
= -compare_debug
;
7719 n_switches
= n_switches_debug_check
[0];
7720 n_switches_alloc
= n_switches_debug_check
[0];
7721 switches
= switches_debug_check
[0];
7726 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7727 if (gcc_exec_prefix
)
7728 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
7729 dir_separator_str
, spec_version
,
7730 accel_dir_suffix
, dir_separator_str
, NULL
);
7732 /* Now we have the specs.
7733 Set the `valid' bits for switches that match anything in any spec. */
7735 validate_all_switches ();
7737 /* Now that we have the switches and the specs, set
7738 the subdirectory based on the options. */
7739 set_multilib_dir ();
7742 /* Set up to remember the pathname of gcc and any options
7743 needed for collect. We use argv[0] instead of progname because
7744 we need the complete pathname. */
7747 driver::putenv_COLLECT_GCC (const char *argv0
) const
7749 obstack_init (&collect_obstack
);
7750 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7751 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
7752 xputenv (XOBFINISH (&collect_obstack
, char *));
7755 /* Set up to remember the pathname of the lto wrapper. */
7758 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
7760 char *lto_wrapper_file
;
7763 lto_wrapper_file
= NULL
;
7765 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
7767 if (lto_wrapper_file
)
7769 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
7770 lto_wrapper_spec
= lto_wrapper_file
;
7771 obstack_init (&collect_obstack
);
7772 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7773 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7774 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7775 strlen (lto_wrapper_spec
) + 1);
7776 xputenv (XOBFINISH (&collect_obstack
, char *));
7781 /* Set up to remember the names of offload targets. */
7784 driver::maybe_putenv_OFFLOAD_TARGETS () const
7786 if (offload_targets
&& offload_targets
[0] != '\0')
7788 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
7789 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
7790 obstack_grow (&collect_obstack
, offload_targets
,
7791 strlen (offload_targets
) + 1);
7792 xputenv (XOBFINISH (&collect_obstack
, char *));
7795 free (offload_targets
);
7796 offload_targets
= NULL
;
7799 /* Reject switches that no pass was interested in. */
7802 driver::handle_unrecognized_options ()
7804 for (size_t i
= 0; (int) i
< n_switches
; i
++)
7805 if (! switches
[i
].validated
)
7807 const char *hint
= m_option_proposer
.suggest_option (switches
[i
].part1
);
7809 error ("unrecognized command line option %<-%s%>;"
7810 " did you mean %<-%s%>?",
7811 switches
[i
].part1
, hint
);
7813 error ("unrecognized command line option %<-%s%>",
7818 /* Handle the various -print-* options, returning 0 if the driver
7819 should exit, or nonzero if the driver should continue. */
7822 driver::maybe_print_and_exit () const
7824 if (print_search_dirs
)
7826 printf (_("install: %s%s\n"),
7827 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7828 gcc_exec_prefix
? "" : machine_suffix
);
7829 printf (_("programs: %s\n"),
7830 build_search_list (&exec_prefixes
, "", false, false));
7831 printf (_("libraries: %s\n"),
7832 build_search_list (&startfile_prefixes
, "", false, true));
7836 if (print_file_name
)
7838 printf ("%s\n", find_file (print_file_name
));
7842 if (print_prog_name
)
7844 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
7846 /* Append USE_LD to the default linker. */
7847 #ifdef DEFAULT_LINKER
7849 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
7850 int len
= (sizeof (DEFAULT_LINKER
)
7851 - sizeof (HOST_EXECUTABLE_SUFFIX
));
7855 char *default_linker
= xstrdup (DEFAULT_LINKER
);
7856 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
7857 HOST_EXECUTABLE_SUFFIX. */
7858 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
7860 default_linker
[len
] = '\0';
7861 ld
= concat (default_linker
, use_ld
,
7862 HOST_EXECUTABLE_SUFFIX
, NULL
);
7867 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
7868 if (access (ld
, X_OK
) == 0)
7870 printf ("%s\n", ld
);
7874 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
7876 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7877 printf ("%s\n", (newname
? newname
: print_prog_name
));
7881 if (print_multi_lib
)
7883 print_multilib_info ();
7887 if (print_multi_directory
)
7889 if (multilib_dir
== NULL
)
7892 printf ("%s\n", multilib_dir
);
7896 if (print_multiarch
)
7898 if (multiarch_dir
== NULL
)
7901 printf ("%s\n", multiarch_dir
);
7907 if (target_system_root
)
7909 if (target_sysroot_suffix
)
7910 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7912 printf ("%s\n", target_system_root
);
7917 if (print_multi_os_directory
)
7919 if (multilib_os_dir
== NULL
)
7922 printf ("%s\n", multilib_os_dir
);
7926 if (print_sysroot_headers_suffix
)
7928 if (*sysroot_hdrs_suffix_spec
)
7930 printf("%s\n", (target_sysroot_hdrs_suffix
7931 ? target_sysroot_hdrs_suffix
7936 /* The error status indicates that only one set of fixed
7937 headers should be built. */
7938 fatal_error (input_location
,
7939 "not configured with sysroot headers suffix");
7942 if (print_help_list
)
7948 printf (_("\nFor bug reporting instructions, please see:\n"));
7949 printf ("%s.\n", bug_report_url
);
7954 /* We do not exit here. Instead we have created a fake input file
7955 called 'help-dummy' which needs to be compiled, and we pass this
7956 on the various sub-processes, along with the --help switch.
7957 Ensure their output appears after ours. */
7958 fputc ('\n', stdout
);
7964 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
7966 printf ("Copyright %s 2019 Free Software Foundation, Inc.\n",
7968 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7969 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7974 /* We do not exit here. We use the same mechanism of --help to print
7975 the version of the sub-processes. */
7976 fputc ('\n', stdout
);
7982 print_configuration (stderr
);
7990 /* Figure out what to do with each input file.
7991 Return true if we need to exit early from "main", false otherwise. */
7994 driver::prepare_infiles ()
7997 int lang_n_infiles
= 0;
7999 if (n_infiles
== added_libraries
)
8000 fatal_error (input_location
, "no input files");
8003 /* Early exit needed from main. */
8006 /* Make a place to record the compiler output file names
8007 that correspond to the input files. */
8010 i
+= lang_specific_extra_outfiles
;
8011 outfiles
= XCNEWVEC (const char *, i
);
8013 /* Record which files were specified explicitly as link input. */
8015 explicit_link_files
= XCNEWVEC (char, n_infiles
);
8017 combine_inputs
= have_o
|| flag_wpa
;
8019 for (i
= 0; (int) i
< n_infiles
; i
++)
8021 const char *name
= infiles
[i
].name
;
8022 struct compiler
*compiler
= lookup_compiler (name
,
8024 infiles
[i
].language
);
8026 if (compiler
&& !(compiler
->combinable
))
8027 combine_inputs
= false;
8029 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
8030 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
8031 infiles
[i
].incompiler
= compiler
;
8035 input_file_compiler
= compiler
;
8036 infiles
[i
].incompiler
= compiler
;
8040 /* Since there is no compiler for this input file, assume it is a
8042 explicit_link_files
[i
] = 1;
8043 infiles
[i
].incompiler
= NULL
;
8045 infiles
[i
].compiled
= false;
8046 infiles
[i
].preprocessed
= false;
8049 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
8050 fatal_error (input_location
,
8051 "cannot specify -o with -c, -S or -E with multiple files");
8053 /* No early exit needed from main; we can continue. */
8057 /* Run the spec machinery on each input file. */
8060 driver::do_spec_on_infiles () const
8064 for (i
= 0; (int) i
< n_infiles
; i
++)
8066 int this_file_error
= 0;
8068 /* Tell do_spec what to substitute for %i. */
8070 input_file_number
= i
;
8071 set_input (infiles
[i
].name
);
8073 if (infiles
[i
].compiled
)
8076 /* Use the same thing in %o, unless cp->spec says otherwise. */
8078 outfiles
[i
] = gcc_input_filename
;
8080 /* Figure out which compiler from the file's suffix. */
8083 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
8084 infiles
[i
].language
);
8086 if (input_file_compiler
)
8088 /* Ok, we found an applicable compiler. Run its spec. */
8090 if (input_file_compiler
->spec
[0] == '#')
8092 error ("%s: %s compiler not installed on this system",
8093 gcc_input_filename
, &input_file_compiler
->spec
[1]);
8094 this_file_error
= 1;
8102 free (debug_check_temp_file
[0]);
8103 debug_check_temp_file
[0] = NULL
;
8105 free (debug_check_temp_file
[1]);
8106 debug_check_temp_file
[1] = NULL
;
8109 value
= do_spec (input_file_compiler
->spec
);
8110 infiles
[i
].compiled
= true;
8112 this_file_error
= 1;
8113 else if (compare_debug
&& debug_check_temp_file
[0])
8116 inform (UNKNOWN_LOCATION
,
8117 "recompiling with -fcompare-debug");
8119 compare_debug
= -compare_debug
;
8120 n_switches
= n_switches_debug_check
[1];
8121 n_switches_alloc
= n_switches_alloc_debug_check
[1];
8122 switches
= switches_debug_check
[1];
8124 value
= do_spec (input_file_compiler
->spec
);
8126 compare_debug
= -compare_debug
;
8127 n_switches
= n_switches_debug_check
[0];
8128 n_switches_alloc
= n_switches_alloc_debug_check
[0];
8129 switches
= switches_debug_check
[0];
8133 error ("during -fcompare-debug recompilation");
8134 this_file_error
= 1;
8137 gcc_assert (debug_check_temp_file
[1]
8138 && filename_cmp (debug_check_temp_file
[0],
8139 debug_check_temp_file
[1]));
8142 inform (UNKNOWN_LOCATION
, "comparing final insns dumps");
8144 if (compare_files (debug_check_temp_file
))
8145 this_file_error
= 1;
8150 free (debug_check_temp_file
[0]);
8151 debug_check_temp_file
[0] = NULL
;
8153 free (debug_check_temp_file
[1]);
8154 debug_check_temp_file
[1] = NULL
;
8159 /* If this file's name does not contain a recognized suffix,
8160 record it as explicit linker input. */
8163 explicit_link_files
[i
] = 1;
8165 /* Clear the delete-on-failure queue, deleting the files in it
8166 if this compilation failed. */
8168 if (this_file_error
)
8170 delete_failure_queue ();
8173 /* If this compilation succeeded, don't delete those files later. */
8174 clear_failure_queue ();
8177 /* Reset the input file name to the first compile/object file name, for use
8178 with %b in LINK_SPEC. We use the first input file that we can find
8179 a compiler to compile it instead of using infiles.language since for
8180 languages other than C we use aliases that we then lookup later. */
8185 for (i
= 0; i
< n_infiles
; i
++)
8186 if (infiles
[i
].incompiler
8187 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
8189 set_input (infiles
[i
].name
);
8196 /* Make sure INPUT_FILE_NUMBER points to first available open
8198 input_file_number
= n_infiles
;
8199 if (lang_specific_pre_link ())
8204 /* If we have to run the linker, do it now. */
8207 driver::maybe_run_linker (const char *argv0
) const
8210 int linker_was_run
= 0;
8211 int num_linker_inputs
;
8213 /* Determine if there are any linker input files. */
8214 num_linker_inputs
= 0;
8215 for (i
= 0; (int) i
< n_infiles
; i
++)
8216 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
8217 num_linker_inputs
++;
8219 /* Run ld to link all the compiler output files. */
8221 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
8223 int tmp
= execution_count
;
8227 #if HAVE_LTO_PLUGIN > 0
8228 #if HAVE_LTO_PLUGIN == 2
8229 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
8231 const char *fuse_linker_plugin
= "fuse-linker-plugin";
8235 /* We'll use ld if we can't find collect2. */
8236 if (! strcmp (linker_name_spec
, "collect2"))
8238 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
8240 linker_name_spec
= "ld";
8243 #if HAVE_LTO_PLUGIN > 0
8244 #if HAVE_LTO_PLUGIN == 2
8245 if (!switch_matches (fno_use_linker_plugin
,
8246 fno_use_linker_plugin
8247 + strlen (fno_use_linker_plugin
), 0))
8249 if (switch_matches (fuse_linker_plugin
,
8251 + strlen (fuse_linker_plugin
), 0))
8254 char *temp_spec
= find_a_file (&exec_prefixes
,
8255 LTOPLUGINSONAME
, R_OK
,
8258 fatal_error (input_location
,
8259 "-fuse-linker-plugin, but %s not found",
8261 linker_plugin_file_spec
= convert_white_space (temp_spec
);
8264 lto_gcc_spec
= argv0
;
8267 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
8269 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
8270 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
8272 if (print_subprocess_help
== 1)
8274 printf (_("\nLinker options\n==============\n\n"));
8275 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
8276 " to the linker.\n\n"));
8279 int value
= do_spec (link_command_spec
);
8282 linker_was_run
= (tmp
!= execution_count
);
8285 /* If options said don't run linker,
8286 complain about input files to be given to the linker. */
8288 if (! linker_was_run
&& !seen_error ())
8289 for (i
= 0; (int) i
< n_infiles
; i
++)
8290 if (explicit_link_files
[i
]
8291 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
8292 warning (0, "%s: linker input file unused because linking not done",
8296 /* The end of "main". */
8299 driver::final_actions () const
8301 /* Delete some or all of the temporary files we made. */
8304 delete_failure_queue ();
8305 delete_temp_files ();
8307 if (print_help_list
)
8309 printf (("\nFor bug reporting instructions, please see:\n"));
8310 printf ("%s\n", bug_report_url
);
8314 /* Determine what the exit code of the driver should be. */
8317 driver::get_exit_code () const
8319 return (signal_count
!= 0 ? 2
8320 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
8324 /* Find the proper compilation spec for the file name NAME,
8325 whose length is LENGTH. LANGUAGE is the specified language,
8326 or 0 if this file is to be passed to the linker. */
8328 static struct compiler
*
8329 lookup_compiler (const char *name
, size_t length
, const char *language
)
8331 struct compiler
*cp
;
8333 /* If this was specified by the user to be a linker input, indicate that. */
8334 if (language
!= 0 && language
[0] == '*')
8337 /* Otherwise, look for the language, if one is spec'd. */
8340 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8341 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
8343 if (name
!= NULL
&& strcmp (name
, "-") == 0
8344 && (strcmp (cp
->suffix
, "@c-header") == 0
8345 || strcmp (cp
->suffix
, "@c++-header") == 0)
8347 fatal_error (input_location
,
8348 "cannot use %<-%> as input filename for a "
8349 "precompiled header");
8354 error ("language %s not recognized", language
);
8358 /* Look for a suffix. */
8359 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8361 if (/* The suffix `-' matches only the file name `-'. */
8362 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8363 || (strlen (cp
->suffix
) < length
8364 /* See if the suffix matches the end of NAME. */
8365 && !strcmp (cp
->suffix
,
8366 name
+ length
- strlen (cp
->suffix
))
8371 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
8372 /* Look again, but case-insensitively this time. */
8374 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8376 if (/* The suffix `-' matches only the file name `-'. */
8377 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8378 || (strlen (cp
->suffix
) < length
8379 /* See if the suffix matches the end of NAME. */
8380 && ((!strcmp (cp
->suffix
,
8381 name
+ length
- strlen (cp
->suffix
))
8382 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
8383 && !strcasecmp (cp
->suffix
,
8384 name
+ length
- strlen (cp
->suffix
)))
8390 if (cp
>= compilers
)
8392 if (cp
->spec
[0] != '@')
8393 /* A non-alias entry: return it. */
8396 /* An alias entry maps a suffix to a language.
8397 Search for the language; pass 0 for NAME and LENGTH
8398 to avoid infinite recursion if language not found. */
8399 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
8405 save_string (const char *s
, int len
)
8407 char *result
= XNEWVEC (char, len
+ 1);
8409 gcc_checking_assert (strlen (s
) >= (unsigned int) len
);
8410 memcpy (result
, s
, len
);
8417 validate_switches_from_spec (const char *spec
, bool user
)
8419 const char *p
= spec
;
8425 || (*p
== 'W' && *++p
== '{')
8426 || (*p
== '@' && *++p
== '{')))
8427 /* We have a switch spec. */
8428 p
= validate_switches (p
+ 1, user
);
8432 validate_all_switches (void)
8434 struct compiler
*comp
;
8435 struct spec_list
*spec
;
8437 for (comp
= compilers
; comp
->spec
; comp
++)
8438 validate_switches_from_spec (comp
->spec
, false);
8440 /* Look through the linked list of specs read from the specs file. */
8441 for (spec
= specs
; spec
; spec
= spec
->next
)
8442 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
8444 validate_switches_from_spec (link_command_spec
, false);
8447 /* Look at the switch-name that comes after START
8448 and mark as valid all supplied switches that match it. */
8451 validate_switches (const char *start
, bool user_spec
)
8453 const char *p
= start
;
8457 bool suffix
= false;
8458 bool starred
= false;
8460 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
8469 if (*p
== '.' || *p
== ',')
8473 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
8474 || *p
== ',' || *p
== '.' || *p
== '@')
8479 starred
= true, p
++;
8485 /* Mark all matching switches as valid. */
8486 for (i
= 0; i
< n_switches
; i
++)
8487 if (!strncmp (switches
[i
].part1
, atom
, len
)
8488 && (starred
|| switches
[i
].part1
[len
] == '\0')
8489 && (switches
[i
].known
|| user_spec
))
8490 switches
[i
].validated
= true;
8494 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
8497 if (*p
&& p
[-1] == ':')
8499 while (*p
&& *p
!= ';' && *p
!= '}')
8504 if (*p
== '{' || *p
== '<')
8505 p
= validate_switches (p
+1, user_spec
);
8506 else if (p
[0] == 'W' && p
[1] == '{')
8507 p
= validate_switches (p
+2, user_spec
);
8508 else if (p
[0] == '@' && p
[1] == '{')
8509 p
= validate_switches (p
+2, user_spec
);
8516 if (*p
&& p
[-1] == ';')
8530 static struct mdswitchstr
*mdswitches
;
8531 static int n_mdswitches
;
8533 /* Check whether a particular argument was used. The first time we
8534 canonicalize the switches to keep only the ones we care about. */
8539 int operator () (const char *p
, int len
);
8546 const char *replace
;
8551 mswitchstr
*mswitches
;
8556 used_arg_t used_arg
;
8559 used_arg_t::operator () (const char *p
, int len
)
8565 struct mswitchstr
*matches
;
8569 /* Break multilib_matches into the component strings of string
8570 and replacement string. */
8571 for (q
= multilib_matches
; *q
!= '\0'; q
++)
8576 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
8578 q
= multilib_matches
;
8587 fatal_error (input_location
, "multilib spec %qs is invalid",
8592 matches
[i
].len
= q
- matches
[i
].str
;
8594 matches
[i
].replace
= ++q
;
8595 while (*q
!= ';' && *q
!= '\0')
8598 goto invalid_matches
;
8601 matches
[i
].rep_len
= q
- matches
[i
].replace
;
8607 /* Now build a list of the replacement string for switches that we care
8608 about. Make sure we allocate at least one entry. This prevents
8609 xmalloc from calling fatal, and prevents us from re-executing this
8612 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
8613 for (i
= 0; i
< n_switches
; i
++)
8614 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
8616 int xlen
= strlen (switches
[i
].part1
);
8617 for (j
= 0; j
< cnt
; j
++)
8618 if (xlen
== matches
[j
].len
8619 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
8621 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
8622 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
8623 mswitches
[n_mswitches
].replace
= (char *) 0;
8624 mswitches
[n_mswitches
].rep_len
= 0;
8630 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
8631 on the command line nor any options mutually incompatible with
8633 for (i
= 0; i
< n_mdswitches
; i
++)
8637 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
8643 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
8644 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
8646 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8653 if (*q
!= ' ' && *q
!= '\0')
8655 while (*r
!= ' ' && *r
!= '\0')
8658 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8661 if (used_arg (r
, q
- r
))
8666 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
8667 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
8668 mswitches
[n_mswitches
].replace
= (char *) 0;
8669 mswitches
[n_mswitches
].rep_len
= 0;
8682 for (i
= 0; i
< n_mswitches
; i
++)
8683 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8689 void used_arg_t::finalize ()
8691 XDELETEVEC (mswitches
);
8698 default_arg (const char *p
, int len
)
8702 for (i
= 0; i
< n_mdswitches
; i
++)
8703 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8709 /* Work out the subdirectory to use based on the options. The format of
8710 multilib_select is a list of elements. Each element is a subdirectory
8711 name followed by a list of options followed by a semicolon. The format
8712 of multilib_exclusions is the same, but without the preceding
8713 directory. First gcc will check the exclusions, if none of the options
8714 beginning with an exclamation point are present, and all of the other
8715 options are present, then we will ignore this completely. Passing
8716 that, gcc will consider each multilib_select in turn using the same
8717 rules for matching the options. If a match is found, that subdirectory
8719 A subdirectory name is optionally followed by a colon and the corresponding
8723 set_multilib_dir (void)
8726 unsigned int this_path_len
;
8727 const char *this_path
, *this_arg
;
8728 const char *start
, *end
;
8730 int ok
, ndfltok
, first
;
8733 start
= multilib_defaults
;
8734 while (*start
== ' ' || *start
== '\t')
8736 while (*start
!= '\0')
8739 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8741 while (*start
== ' ' || *start
== '\t')
8749 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8750 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8752 while (*start
== ' ' || *start
== '\t')
8758 for (end
= start
+ 1;
8759 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8762 obstack_grow (&multilib_obstack
, start
, end
- start
);
8763 obstack_1grow (&multilib_obstack
, 0);
8764 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8765 mdswitches
[i
++].len
= end
- start
;
8772 p
= multilib_exclusions
;
8775 /* Ignore newlines. */
8782 /* Check the arguments. */
8789 fatal_error (input_location
, "multilib exclusions %qs is invalid",
8790 multilib_exclusions
);
8800 while (*p
!= ' ' && *p
!= ';')
8803 goto invalid_exclusions
;
8807 if (*this_arg
!= '!')
8815 ok
= used_arg (this_arg
, p
- this_arg
);
8830 p
= multilib_select
;
8832 /* Append multilib reuse rules if any. With those rules, we can reuse
8833 one multilib for certain different options sets. */
8834 if (strlen (multilib_reuse
) > 0)
8835 p
= concat (p
, multilib_reuse
, NULL
);
8839 /* Ignore newlines. */
8846 /* Get the initial path. */
8853 fatal_error (input_location
, "multilib select %qs %qs is invalid",
8854 multilib_select
, multilib_reuse
);
8858 this_path_len
= p
- this_path
;
8860 /* Check the arguments. */
8867 goto invalid_select
;
8876 while (*p
!= ' ' && *p
!= ';')
8879 goto invalid_select
;
8883 if (*this_arg
!= '!')
8891 /* If this is a default argument, we can just ignore it.
8892 This is true even if this_arg begins with '!'. Beginning
8893 with '!' does not mean that this argument is necessarily
8894 inappropriate for this library: it merely means that
8895 there is a more specific library which uses this
8896 argument. If this argument is a default, we need not
8897 consider that more specific library. */
8898 ok
= used_arg (this_arg
, p
- this_arg
);
8905 if (default_arg (this_arg
, p
- this_arg
))
8914 if (this_path_len
!= 1
8915 || this_path
[0] != '.')
8917 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
8920 strncpy (new_multilib_dir
, this_path
, this_path_len
);
8921 new_multilib_dir
[this_path_len
] = '\0';
8922 q
= strchr (new_multilib_dir
, ':');
8925 multilib_dir
= new_multilib_dir
;
8932 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8934 while (q
< end
&& *q
!= ':')
8938 const char *q2
= q
+ 1, *ml_end
= end
;
8939 char *new_multilib_os_dir
;
8941 while (q2
< end
&& *q2
!= ':')
8945 if (ml_end
- q
== 1)
8946 multilib_os_dir
= xstrdup (".");
8949 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
8950 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
8951 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
8952 multilib_os_dir
= new_multilib_os_dir
;
8955 if (q2
< end
&& *q2
== ':')
8957 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
8958 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
8959 new_multiarch_dir
[end
- q2
- 1] = '\0';
8960 multiarch_dir
= new_multiarch_dir
;
8969 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
8970 && strcmp (multilib_os_dir
, ".") == 0)
8972 free (CONST_CAST (char *, multilib_os_dir
));
8973 multilib_os_dir
= NULL
;
8975 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
8976 multilib_os_dir
= multilib_dir
;
8979 /* Print out the multiple library subdirectory selection
8980 information. This prints out a series of lines. Each line looks
8981 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8982 required. Only the desired options are printed out, the negative
8983 matches. The options are print without a leading dash. There are
8984 no spaces to make it easy to use the information in the shell.
8985 Each subdirectory is printed only once. This assumes the ordering
8986 generated by the genmultilib script. Also, we leave out ones that match
8990 print_multilib_info (void)
8992 const char *p
= multilib_select
;
8993 const char *last_path
= 0, *this_path
;
8995 unsigned int last_path_len
= 0;
9000 /* Ignore newlines. */
9007 /* Get the initial path. */
9014 fatal_error (input_location
,
9015 "multilib select %qs is invalid", multilib_select
);
9021 /* When --disable-multilib was used but target defines
9022 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
9023 with .:: for multiarch configurations) are there just to find
9024 multilib_os_dir, so skip them from output. */
9025 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
9028 /* Check for matches with the multilib_exclusions. We don't bother
9029 with the '!' in either list. If any of the exclusion rules match
9030 all of its options with the select rule, we skip it. */
9032 const char *e
= multilib_exclusions
;
9033 const char *this_arg
;
9038 /* Ignore newlines. */
9045 /* Check the arguments. */
9054 fatal_error (input_location
,
9055 "multilib exclusion %qs is invalid",
9056 multilib_exclusions
);
9067 while (*e
!= ' ' && *e
!= ';')
9070 goto invalid_exclusion
;
9078 int len
= e
- this_arg
;
9081 goto invalid_select
;
9085 while (*q
!= ' ' && *q
!= ';')
9088 goto invalid_select
;
9092 if (! strncmp (arg
, this_arg
,
9093 (len
< q
- arg
) ? q
- arg
: len
)
9094 || default_arg (this_arg
, e
- this_arg
))
9124 /* If this is a duplicate, skip it. */
9125 skip
= (last_path
!= 0
9126 && (unsigned int) (p
- this_path
) == last_path_len
9127 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
9129 last_path
= this_path
;
9130 last_path_len
= p
- this_path
;
9133 /* If this directory requires any default arguments, we can skip
9134 it. We will already have printed a directory identical to
9135 this one which does not require that default argument. */
9146 goto invalid_select
;
9153 while (*q
!= ' ' && *q
!= ';')
9156 goto invalid_select
;
9161 && default_arg (arg
, q
- arg
))
9176 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
9187 goto invalid_select
;
9195 use_arg
= *p
!= '!';
9200 while (*p
!= ' ' && *p
!= ';')
9203 goto invalid_select
;
9215 /* If there are extra options, print them now. */
9216 if (multilib_extra
&& *multilib_extra
)
9218 int print_at
= TRUE
;
9221 for (q
= multilib_extra
; *q
!= '\0'; q
++)
9242 /* getenv built-in spec function.
9244 Returns the value of the environment variable given by its first argument,
9245 concatenated with the second argument. If the variable is not defined, a
9246 fatal error is issued unless such undefs are internally allowed, in which
9247 case the variable name prefixed by a '/' is used as the variable value.
9249 The leading '/' allows using the result at a spot where a full path would
9250 normally be expected and when the actual value doesn't really matter since
9251 undef vars are allowed. */
9254 getenv_spec_function (int argc
, const char **argv
)
9257 const char *varname
;
9267 value
= env
.get (varname
);
9269 /* If the variable isn't defined and this is allowed, craft our expected
9270 return value. Assume variable names used in specs strings don't contain
9271 any active spec character so don't need escaping. */
9272 if (!value
&& spec_undefvar_allowed
)
9274 result
= XNEWVAR (char, strlen(varname
) + 2);
9275 sprintf (result
, "/%s", varname
);
9280 fatal_error (input_location
,
9281 "environment variable %qs not defined", varname
);
9283 /* We have to escape every character of the environment variable so
9284 they are not interpreted as active spec characters. A
9285 particularly painful case is when we are reading a variable
9286 holding a windows path complete with \ separators. */
9287 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
9288 result
= XNEWVAR (char, len
);
9289 for (ptr
= result
; *value
; ptr
+= 2)
9295 strcpy (ptr
, argv
[1]);
9300 /* if-exists built-in spec function.
9302 Checks to see if the file specified by the absolute pathname in
9303 ARGS exists. Returns that pathname if found.
9305 The usual use for this function is to check for a library file
9306 (whose name has been expanded with %s). */
9309 if_exists_spec_function (int argc
, const char **argv
)
9311 /* Must have only one argument. */
9312 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9318 /* if-exists-else built-in spec function.
9320 This is like if-exists, but takes an additional argument which
9321 is returned if the first argument does not exist. */
9324 if_exists_else_spec_function (int argc
, const char **argv
)
9326 /* Must have exactly two arguments. */
9330 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9336 /* sanitize built-in spec function.
9338 This returns non-NULL, if sanitizing address, thread or
9339 any of the undefined behavior sanitizers. */
9342 sanitize_spec_function (int argc
, const char **argv
)
9347 if (strcmp (argv
[0], "address") == 0)
9348 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
9349 if (strcmp (argv
[0], "kernel-address") == 0)
9350 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
9351 if (strcmp (argv
[0], "thread") == 0)
9352 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
9353 if (strcmp (argv
[0], "undefined") == 0)
9354 return ((flag_sanitize
9355 & (SANITIZE_UNDEFINED
| SANITIZE_UNDEFINED_NONDEFAULT
))
9356 && !flag_sanitize_undefined_trap_on_error
) ? "" : NULL
;
9357 if (strcmp (argv
[0], "leak") == 0)
9358 return ((flag_sanitize
9359 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
9360 == SANITIZE_LEAK
) ? "" : NULL
;
9364 /* replace-outfile built-in spec function.
9366 This looks for the first argument in the outfiles array's name and
9367 replaces it with the second argument. */
9370 replace_outfile_spec_function (int argc
, const char **argv
)
9373 /* Must have exactly two arguments. */
9377 for (i
= 0; i
< n_infiles
; i
++)
9379 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9380 outfiles
[i
] = xstrdup (argv
[1]);
9385 /* remove-outfile built-in spec function.
9387 * This looks for the first argument in the outfiles array's name and
9391 remove_outfile_spec_function (int argc
, const char **argv
)
9394 /* Must have exactly one argument. */
9398 for (i
= 0; i
< n_infiles
; i
++)
9400 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9406 /* Given two version numbers, compares the two numbers.
9407 A version number must match the regular expression
9408 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
9411 compare_version_strings (const char *v1
, const char *v2
)
9416 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
9417 REG_EXTENDED
| REG_NOSUB
) != 0)
9419 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
9420 if (rresult
== REG_NOMATCH
)
9421 fatal_error (input_location
, "invalid version number %qs", v1
);
9422 else if (rresult
!= 0)
9424 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
9425 if (rresult
== REG_NOMATCH
)
9426 fatal_error (input_location
, "invalid version number %qs", v2
);
9427 else if (rresult
!= 0)
9430 return strverscmp (v1
, v2
);
9434 /* version_compare built-in spec function.
9436 This takes an argument of the following form:
9438 <comparison-op> <arg1> [<arg2>] <switch> <result>
9440 and produces "result" if the comparison evaluates to true,
9441 and nothing if it doesn't.
9443 The supported <comparison-op> values are:
9445 >= true if switch is a later (or same) version than arg1
9447 < true if switch is an earlier version than arg1
9449 >< true if switch is arg1 or later, and earlier than arg2
9450 <> true if switch is earlier than arg1 or is arg2 or later
9452 If the switch is not present, the condition is false unless
9453 the first character of the <comparison-op> is '!'.
9456 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
9457 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
9460 version_compare_spec_function (int argc
, const char **argv
)
9464 const char *switch_value
= NULL
;
9469 fatal_error (input_location
, "too few arguments to %%:version-compare");
9470 if (argv
[0][0] == '\0')
9472 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
9474 if (argc
!= nargs
+ 3)
9475 fatal_error (input_location
, "too many arguments to %%:version-compare");
9477 switch_len
= strlen (argv
[nargs
+ 1]);
9478 for (i
= 0; i
< n_switches
; i
++)
9479 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
9480 && check_live_switch (i
, switch_len
))
9481 switch_value
= switches
[i
].part1
+ switch_len
;
9483 if (switch_value
== NULL
)
9487 comp1
= compare_version_strings (switch_value
, argv
[1]);
9489 comp2
= compare_version_strings (switch_value
, argv
[2]);
9491 comp2
= -1; /* This value unused. */
9494 switch (argv
[0][0] << 8 | argv
[0][1])
9496 case '>' << 8 | '=':
9497 result
= comp1
>= 0;
9499 case '!' << 8 | '<':
9500 result
= comp1
>= 0 || switch_value
== NULL
;
9505 case '!' << 8 | '>':
9506 result
= comp1
< 0 || switch_value
== NULL
;
9508 case '>' << 8 | '<':
9509 result
= comp1
>= 0 && comp2
< 0;
9511 case '<' << 8 | '>':
9512 result
= comp1
< 0 || comp2
>= 0;
9516 fatal_error (input_location
,
9517 "unknown operator %qs in %%:version-compare", argv
[0]);
9522 return argv
[nargs
+ 2];
9525 /* %:include builtin spec function. This differs from %include in that it
9526 can be nested inside a spec, and thus be conditionalized. It takes
9527 one argument, the filename, and looks for it in the startfile path.
9528 The result is always NULL, i.e. an empty expansion. */
9531 include_spec_function (int argc
, const char **argv
)
9538 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
9539 read_specs (file
? file
: argv
[0], false, false);
9544 /* %:find-file spec function. This function replaces its argument by
9545 the file found through find_file, that is the -print-file-name gcc
9548 find_file_spec_function (int argc
, const char **argv
)
9555 file
= find_file (argv
[0]);
9560 /* %:find-plugindir spec function. This function replaces its argument
9561 by the -iplugindir=<dir> option. `dir' is found through find_file, that
9562 is the -print-file-name gcc program option. */
9564 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
9571 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
9576 /* %:print-asm-header spec function. Print a banner to say that the
9577 following output is from the assembler. */
9580 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
9581 const char **argv ATTRIBUTE_UNUSED
)
9583 printf (_("Assembler options\n=================\n\n"));
9584 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
9589 /* Get a random number for -frandom-seed */
9591 static unsigned HOST_WIDE_INT
9592 get_random_number (void)
9594 unsigned HOST_WIDE_INT ret
= 0;
9597 fd
= open ("/dev/urandom", O_RDONLY
);
9600 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
9606 /* Get some more or less random data. */
9607 #ifdef HAVE_GETTIMEOFDAY
9611 gettimeofday (&tv
, NULL
);
9612 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
9616 time_t now
= time (NULL
);
9618 if (now
!= (time_t)-1)
9619 ret
= (unsigned) now
;
9623 return ret
^ getpid ();
9626 /* %:compare-debug-dump-opt spec function. Save the last argument,
9627 expected to be the last -fdump-final-insns option, or generate a
9631 compare_debug_dump_opt_spec_function (int arg
,
9632 const char **argv ATTRIBUTE_UNUSED
)
9637 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
9640 fatal_error (input_location
,
9641 "too many arguments to %%:compare-debug-dump-opt");
9643 do_spec_2 ("%{fdump-final-insns=*:%*}", NULL
);
9644 do_spec_1 (" ", 0, NULL
);
9646 if (argbuf
.length () > 0
9647 && strcmp (argv
[argbuf
.length () - 1], "."))
9652 name
= xstrdup (argv
[argbuf
.length () - 1]);
9657 const char *ext
= NULL
;
9659 if (argbuf
.length () > 0)
9661 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}", NULL
);
9664 else if (!compare_debug
)
9667 do_spec_2 ("%g.gkd", NULL
);
9669 do_spec_1 (" ", 0, NULL
);
9671 gcc_assert (argbuf
.length () > 0);
9673 name
= concat (argbuf
.last (), ext
, NULL
);
9675 ret
= concat ("-fdump-final-insns=", name
, NULL
);
9678 which
= compare_debug
< 0;
9679 debug_check_temp_file
[which
] = name
;
9683 unsigned HOST_WIDE_INT value
= get_random_number ();
9685 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
9691 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
9702 static const char *debug_auxbase_opt
;
9704 /* %:compare-debug-self-opt spec function. Expands to the options
9705 that are to be passed in the second compilation of
9709 compare_debug_self_opt_spec_function (int arg
,
9710 const char **argv ATTRIBUTE_UNUSED
)
9713 fatal_error (input_location
,
9714 "too many arguments to %%:compare-debug-self-opt");
9716 if (compare_debug
>= 0)
9719 do_spec_2 ("%{c|S:%{o*:%*}}", NULL
);
9720 do_spec_1 (" ", 0, NULL
);
9722 if (argbuf
.length () > 0)
9723 debug_auxbase_opt
= concat ("-auxbase-strip ",
9727 debug_auxbase_opt
= NULL
;
9730 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
9731 %<fdump-final-insns=* -w -S -o %j \
9732 %{!fcompare-debug-second:-fcompare-debug-second} \
9733 ", compare_debug_opt
, NULL
);
9736 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
9737 options that are to be passed in the second compilation of
9738 compare-debug. It expects, as an argument, the basename of the
9739 current input file name, with the .gk suffix appended to it. */
9742 compare_debug_auxbase_opt_spec_function (int arg
,
9749 fatal_error (input_location
,
9750 "too few arguments to %%:compare-debug-auxbase-opt");
9753 fatal_error (input_location
,
9754 "too many arguments to %%:compare-debug-auxbase-opt");
9756 if (compare_debug
>= 0)
9759 len
= strlen (argv
[0]);
9760 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
9761 fatal_error (input_location
, "argument to %%:compare-debug-auxbase-opt "
9762 "does not end in .gk");
9764 if (debug_auxbase_opt
)
9765 return debug_auxbase_opt
;
9767 #define OPT "-auxbase "
9770 name
= (char*) xmalloc (sizeof (OPT
) + len
);
9771 memcpy (name
, OPT
, sizeof (OPT
) - 1);
9772 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
9773 name
[sizeof (OPT
) - 1 + len
] = '\0';
9780 /* %:pass-through-libs spec function. Finds all -l options and input
9781 file names in the lib spec passed to it, and makes a list of them
9782 prepended with the plugin option to cause them to be passed through
9783 to the final link after all the new object files have been added. */
9786 pass_through_libs_spec_func (int argc
, const char **argv
)
9788 char *prepended
= xstrdup (" ");
9790 /* Shlemiel the painter's algorithm. Innately horrible, but at least
9791 we know that there will never be more than a handful of strings to
9792 concat, and it's only once per run, so it's not worth optimising. */
9793 for (n
= 0; n
< argc
; n
++)
9795 char *old
= prepended
;
9796 /* Anything that isn't an option is a full path to an output
9797 file; pass it through if it ends in '.a'. Among options,
9799 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
9801 const char *lopt
= argv
[n
] + 2;
9802 /* Handle both joined and non-joined -l options. If for any
9803 reason there's a trailing -l with no joined or following
9804 arg just discard it. */
9805 if (!*lopt
&& ++n
>= argc
)
9809 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
9812 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
9814 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
9815 argv
[n
], " ", NULL
);
9817 if (prepended
!= old
)
9823 /* %:replace-extension spec function. Replaces the extension of the
9824 first argument with the second argument. */
9827 replace_extension_spec_func (int argc
, const char **argv
)
9835 fatal_error (input_location
, "too few arguments to %%:replace-extension");
9837 name
= xstrdup (argv
[0]);
9839 for (i
= strlen (name
) - 1; i
>= 0; i
--)
9840 if (IS_DIR_SEPARATOR (name
[i
]))
9843 p
= strrchr (name
+ i
+ 1, '.');
9847 result
= concat (name
, argv
[1], NULL
);
9853 /* Returns "" if ARGV[ARGC - 2] is greater than ARGV[ARGC-1].
9854 Otherwise, return NULL. */
9857 greater_than_spec_func (int argc
, const char **argv
)
9864 gcc_assert (argc
>= 2);
9866 long arg
= strtol (argv
[argc
- 2], &converted
, 10);
9867 gcc_assert (converted
!= argv
[argc
- 2]);
9869 long lim
= strtol (argv
[argc
- 1], &converted
, 10);
9870 gcc_assert (converted
!= argv
[argc
- 1]);
9878 /* Returns "" if debug_info_level is greater than ARGV[ARGC-1].
9879 Otherwise, return NULL. */
9882 debug_level_greater_than_spec_func (int argc
, const char **argv
)
9887 fatal_error (input_location
,
9888 "wrong number of arguments to %%:debug-level-gt");
9890 long arg
= strtol (argv
[0], &converted
, 10);
9891 gcc_assert (converted
!= argv
[0]);
9893 if (debug_info_level
> arg
)
9899 /* The function takes 2 arguments: OPTION name and file name.
9900 When the FILE is found by find_file, return OPTION=path_to_file. */
9903 find_fortran_preinclude_file (int argc
, const char **argv
)
9908 const char *path
= find_a_file (&include_prefixes
, argv
[1], R_OK
, true);
9910 return concat (argv
[0], path
, NULL
);
9916 /* Insert backslash before spaces in ORIG (usually a file path), to
9917 avoid being broken by spec parser.
9919 This function is needed as do_spec_1 treats white space (' ' and '\t')
9920 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
9921 the file name should be treated as a single argument rather than being
9922 broken into multiple. Solution is to insert '\\' before the space in a
9925 This function converts and only converts all occurrence of ' '
9926 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
9930 "a\\ b" -> "a\\\\ b"
9932 orig: input null-terminating string that was allocated by xalloc. The
9933 memory it points to might be freed in this function. Behavior undefined
9934 if ORIG wasn't xalloced or was freed already at entry.
9936 Return: ORIG if no conversion needed. Otherwise a newly allocated string
9937 that was converted from ORIG. */
9940 convert_white_space (char *orig
)
9942 int len
, number_of_space
= 0;
9944 for (len
= 0; orig
[len
]; len
++)
9945 if (orig
[len
] == ' ' || orig
[len
] == '\t') number_of_space
++;
9947 if (number_of_space
)
9949 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
9951 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
9953 if (orig
[j
] == ' ' || orig
[j
] == '\t')
9954 new_spec
[k
++] = '\\';
9955 new_spec
[k
] = orig
[j
];
9965 path_prefix_reset (path_prefix
*prefix
)
9967 struct prefix_list
*iter
, *next
;
9968 iter
= prefix
->plist
;
9972 free (const_cast <char *> (iter
->prefix
));
9977 prefix
->max_len
= 0;
9980 /* Restore all state within gcc.c to the initial state, so that the driver
9981 code can be safely re-run in-process.
9983 Many const char * variables are referenced by static specs (see
9984 INIT_STATIC_SPEC above). These variables are restored to their default
9985 values by a simple loop over the static specs.
9987 For other variables, we directly restore them all to their initial
9988 values (often implicitly 0).
9990 Free the various obstacks in this file, along with "opts_obstack"
9993 This function also restores any environment variables that were changed. */
9999 params_c_finalize ();
10000 diagnostic_finish (global_dc
);
10003 at_file_supplied
= 0;
10004 print_help_list
= 0;
10006 verbose_only_flag
= 0;
10007 print_subprocess_help
= 0;
10009 report_times_to_file
= NULL
;
10010 target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
10011 target_system_root_changed
= 0;
10012 target_sysroot_suffix
= 0;
10013 target_sysroot_hdrs_suffix
= 0;
10014 save_temps_flag
= SAVE_TEMPS_NONE
;
10015 save_temps_prefix
= 0;
10016 save_temps_length
= 0;
10017 spec_machine
= DEFAULT_TARGET_MACHINE
;
10018 greatest_status
= 1;
10020 finalize_options_struct (&global_options
);
10021 finalize_options_struct (&global_options_set
);
10023 obstack_free (&obstack
, NULL
);
10024 obstack_free (&opts_obstack
, NULL
); /* in opts.c */
10025 obstack_free (&collect_obstack
, NULL
);
10027 link_command_spec
= LINK_COMMAND_SPEC
;
10029 obstack_free (&multilib_obstack
, NULL
);
10031 user_specs_head
= NULL
;
10032 user_specs_tail
= NULL
;
10034 /* Within the "compilers" vec, the fields "suffix" and "spec" were
10035 statically allocated for the default compilers, but dynamically
10036 allocated for additional compilers. Delete them for the latter. */
10037 for (int i
= n_default_compilers
; i
< n_compilers
; i
++)
10039 free (const_cast <char *> (compilers
[i
].suffix
));
10040 free (const_cast <char *> (compilers
[i
].spec
));
10042 XDELETEVEC (compilers
);
10046 linker_options
.truncate (0);
10047 assembler_options
.truncate (0);
10048 preprocessor_options
.truncate (0);
10050 path_prefix_reset (&exec_prefixes
);
10051 path_prefix_reset (&startfile_prefixes
);
10052 path_prefix_reset (&include_prefixes
);
10054 machine_suffix
= 0;
10055 just_machine_suffix
= 0;
10056 gcc_exec_prefix
= 0;
10057 gcc_libexec_prefix
= 0;
10058 md_exec_prefix
= MD_EXEC_PREFIX
;
10059 md_startfile_prefix
= MD_STARTFILE_PREFIX
;
10060 md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
10062 multilib_os_dir
= 0;
10065 /* Free any specs dynamically-allocated by set_spec.
10066 These will be at the head of the list, before the
10067 statically-allocated ones. */
10070 while (specs
!= static_specs
)
10072 spec_list
*next
= specs
->next
;
10073 free (const_cast <char *> (specs
->name
));
10079 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
10081 spec_list
*sl
= &static_specs
[i
];
10085 free (const_cast <char *> (*(sl
->ptr_spec
)));
10086 sl
->alloc_p
= false;
10088 *(sl
->ptr_spec
) = sl
->default_ptr
;
10091 extra_specs
= NULL
;
10094 processing_spec_function
= 0;
10102 execution_count
= 0;
10105 temp_filename
= NULL
;
10106 temp_filename_length
= 0;
10107 always_delete_queue
= NULL
;
10108 failure_delete_queue
= NULL
;
10110 XDELETEVEC (switches
);
10113 n_switches_alloc
= 0;
10116 compare_debug_second
= 0;
10117 compare_debug_opt
= NULL
;
10118 for (int i
= 0; i
< 2; i
++)
10120 switches_debug_check
[i
] = NULL
;
10121 n_switches_debug_check
[i
] = 0;
10122 n_switches_alloc_debug_check
[i
] = 0;
10123 debug_check_temp_file
[i
] = NULL
;
10126 XDELETEVEC (infiles
);
10129 n_infiles_alloc
= 0;
10131 combine_inputs
= false;
10132 added_libraries
= 0;
10133 XDELETEVEC (outfiles
);
10136 last_language_n_infiles
= 0;
10137 gcc_input_filename
= NULL
;
10138 input_file_number
= 0;
10139 input_filename_length
= 0;
10140 basename_length
= 0;
10141 suffixed_basename_length
= 0;
10142 input_basename
= NULL
;
10143 input_suffix
= NULL
;
10144 /* We don't need to purge "input_stat", just to unset "input_stat_set". */
10145 input_stat_set
= 0;
10146 input_file_compiler
= NULL
;
10148 delete_this_arg
= 0;
10149 this_is_output_file
= 0;
10150 this_is_library_file
= 0;
10151 this_is_linker_script
= 0;
10152 input_from_pipe
= 0;
10153 suffix_subst
= NULL
;
10158 debug_auxbase_opt
= NULL
;
10160 used_arg
.finalize ();
10164 Targets can provide configure-time default options in
10165 OPTION_DEFAULT_SPECS. The jit needs to access these, but
10166 they are expressed in the spec language.
10168 Run just enough of the driver to be able to expand these
10169 specs, and then call the callback CB on each
10170 such option. The options strings are *without* a leading
10171 '-' character e.g. ("march=x86-64"). Finally, clean up. */
10174 driver_get_configure_time_options (void (*cb
) (const char *option
,
10180 obstack_init (&obstack
);
10181 init_opts_obstack ();
10184 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
10185 do_option_spec (option_default_specs
[i
].name
,
10186 option_default_specs
[i
].spec
);
10188 for (i
= 0; (int) i
< n_switches
; i
++)
10190 gcc_assert (switches
[i
].part1
);
10191 (*cb
) (switches
[i
].part1
, user_data
);
10194 obstack_free (&opts_obstack
, NULL
);
10195 obstack_free (&obstack
, NULL
);