1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2018 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 /* This program is the user interface to the C compiler and possibly to
21 other compilers. It is used because compilation is a complicated procedure
22 which involves running several programs and passing temporary files between
23 them, forwarding the users switches to those programs selectively,
24 and deleting the temporary files at the end.
26 CC recognizes how to compile each input file by suffixes in the file names.
27 Once it knows which kind of compilation to perform, the procedure for
28 compilation is specified by a string called a "spec". */
32 #include "coretypes.h"
33 #include "multilib.h" /* before tm.h */
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 char *convert_white_space (char *);
413 /* The Specs Language
415 Specs are strings containing lines, each of which (if not blank)
416 is made up of a program name, and arguments separated by spaces.
417 The program name must be exact and start from root, since no path
418 is searched and it is unreliable to depend on the current working directory.
419 Redirection of input or output is not supported; the subprograms must
420 accept filenames saying what files to read and write.
422 In addition, the specs can contain %-sequences to substitute variable text
423 or for conditional text. Here is a table of all defined %-sequences.
424 Note that spaces are not generated automatically around the results of
425 expanding these sequences; therefore, you can concatenate them together
426 or with constant text in a single argument.
428 %% substitute one % into the program name or argument.
429 %i substitute the name of the input file being processed.
430 %b substitute the basename of the input file being processed.
431 This is the substring up to (and not including) the last period
432 and not including the directory unless -save-temps was specified
433 to put temporaries in a different location.
434 %B same as %b, but include the file suffix (text after the last period).
436 substitute a file name that has suffix SUFFIX and is chosen
437 once per compilation, and mark the argument a la %d. To reduce
438 exposure to denial-of-service attacks, the file name is now
439 chosen in a way that is hard to predict even when previously
440 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
441 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
442 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
443 had been pre-processed. Previously, %g was simply substituted
444 with a file name chosen once per compilation, without regard
445 to any appended suffix (which was therefore treated just like
446 ordinary text), making such attacks more likely to succeed.
448 like %g, but if -pipe is in effect, expands simply to "-".
450 like %g, but if -pipe is in effect, expands to nothing. (We have both
451 %| and %m to accommodate differences between system assemblers; see
452 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
454 like %g, but generates a new temporary file name even if %uSUFFIX
457 substitutes the last file name generated with %uSUFFIX, generating a
458 new one if there is no such last file name. In the absence of any
459 %uSUFFIX, this is just like %gSUFFIX, except they don't share
460 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
461 would involve the generation of two distinct file names, one
462 for each `%g.s' and another for each `%U.s'. Previously, %U was
463 simply substituted with a file name chosen for the previous %u,
464 without regard to any appended suffix.
466 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
467 writable, and if save-temps is off; otherwise, substitute the name
468 of a temporary file, just like %u. This temporary file is not
469 meant for communication between processes, but rather as a junk
472 substitutes .SUFFIX for the suffixes of a matched switch's args when
473 it is subsequently output with %*. SUFFIX is terminated by the next
475 %d marks the argument containing or following the %d as a
476 temporary file name, so that file will be deleted if GCC exits
477 successfully. Unlike %g, this contributes no text to the argument.
478 %w marks the argument containing or following the %w as the
479 "output file" of this compilation. This puts the argument
480 into the sequence of arguments that %o will substitute later.
481 %V indicates that this compilation produces no "output file".
483 like %{...} but marks the last argument supplied within as a file
484 to be deleted on failure.
486 like %{...} but puts the result into a FILE and substitutes @FILE
487 if an @file argument has been supplied.
488 %o substitutes the names of all the output files, with spaces
489 automatically placed around them. You should write spaces
490 around the %o as well or the results are undefined.
491 %o is for use in the specs for running the linker.
492 Input files whose names have no recognized suffix are not compiled
493 at all, but they are included among the output files, so they will
495 %O substitutes the suffix for object files. Note that this is
496 handled specially when it immediately follows %g, %u, or %U
497 (with or without a suffix argument) because of the need for
498 those to form complete file names. The handling is such that
499 %O is treated exactly as if it had already been substituted,
500 except that %g, %u, and %U do not currently support additional
501 SUFFIX characters following %O as they would following, for
503 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
504 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
505 and -B options) and -imultilib as necessary.
506 %s current argument is the name of a library or startup file of some sort.
507 Search for that file in a standard list of directories
508 and substitute the full name found.
509 %eSTR Print STR as an error message. STR is terminated by a newline.
510 Use this when inconsistent options are detected.
511 %nSTR Print STR as a notice. STR is terminated by a newline.
512 %x{OPTION} Accumulate an option for %X.
513 %X Output the accumulated linker options specified by compilations.
514 %Y Output the accumulated assembler options specified by compilations.
515 %Z Output the accumulated preprocessor options specified by compilations.
516 %a process ASM_SPEC as a spec.
517 This allows config.h to specify part of the spec for running as.
518 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
519 used here. This can be used to run a post-processor after the
520 assembler has done its job.
521 %D Dump out a -L option for each directory in startfile_prefixes.
522 If multilib_dir is set, extra entries are generated with it affixed.
523 %l process LINK_SPEC as a spec.
524 %L process LIB_SPEC as a spec.
525 %M Output multilib_os_dir.
526 %G process LIBGCC_SPEC as a spec.
527 %R Output the concatenation of target_system_root and
528 target_sysroot_suffix.
529 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
530 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
531 %C process CPP_SPEC as a spec.
532 %1 process CC1_SPEC as a spec.
533 %2 process CC1PLUS_SPEC as a spec.
534 %* substitute the variable part of a matched option. (See below.)
535 Note that each comma in the substituted string is replaced by
536 a single space. A space is appended after the last substition
537 unless there is more text in current sequence.
538 %<S remove all occurrences of -S from the command line.
539 Note - this command is position dependent. % commands in the
540 spec string before this one will see -S, % commands in the
541 spec string after this one will not.
542 %>S Similar to "%<S", but keep it in the GCC command line.
543 %<S* remove all occurrences of all switches beginning with -S from the
546 Call the named function FUNCTION, passing it ARGS. ARGS is
547 first processed as a nested spec string, then split into an
548 argument vector in the usual fashion. The function returns
549 a string which is processed as if it had appeared literally
550 as part of the current spec.
551 %{S} substitutes the -S switch, if that switch was given to GCC.
552 If that switch was not specified, this substitutes nothing.
553 Here S is a metasyntactic variable.
554 %{S*} substitutes all the switches specified to GCC whose names start
555 with -S. This is used for -o, -I, etc; switches that take
556 arguments. GCC considers `-o foo' as being one switch whose
557 name starts with `o'. %{o*} would substitute this text,
558 including the space; thus, two arguments would be generated.
559 %{S*&T*} likewise, but preserve order of S and T options (the order
560 of S and T in the spec is not significant). Can be any number
561 of ampersand-separated variables; for each the wild card is
562 optional. Useful for CPP as %{D*&U*&A*}.
564 %{S:X} substitutes X, if the -S switch was given to GCC.
565 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
566 %{S*:X} substitutes X if one or more switches whose names start
567 with -S was given to GCC. Normally X is substituted only
568 once, no matter how many such switches appeared. However,
569 if %* appears somewhere in X, then X will be substituted
570 once for each matching switch, with the %* replaced by the
571 part of that switch that matched the '*'. A space will be
572 appended after the last substition unless there is more
573 text in current sequence.
574 %{.S:X} substitutes X, if processing a file with suffix S.
575 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
576 %{,S:X} substitutes X, if processing a file which will use spec S.
577 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
579 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
580 combined with '!', '.', ',', and '*' as above binding stronger
582 If %* appears in X, all of the alternatives must be starred, and
583 only the first matching alternative is substituted.
584 %{%:function(args):X}
585 Call function named FUNCTION with args ARGS. If the function
586 returns non-NULL, then X is substituted, if it returns
587 NULL, it isn't substituted.
588 %{S:X; if S was given to GCC, substitutes X;
589 T:Y; else if T was given to GCC, substitutes Y;
590 :D} else substitutes D. There can be as many clauses as you need.
591 This may be combined with '.', '!', ',', '|', and '*' as above.
593 %(Spec) processes a specification defined in a specs file as *Spec:
595 The switch matching text S in a %{S}, %{S:X}, or similar construct can use
596 a backslash to ignore the special meaning of the character following it,
597 thus allowing literal matching of a character that is otherwise specially
598 treated. For example, %{std=iso9899\:1999:X} substitutes X if the
599 -std=iso9899:1999 option is given.
601 The conditional text X in a %{S:X} or similar construct may contain
602 other nested % constructs or spaces, or even newlines. They are
603 processed as usual, as described above. Trailing white space in X is
604 ignored. White space may also appear anywhere on the left side of the
605 colon in these constructs, except between . or * and the corresponding
608 The -O, -f, -g, -m, and -W switches are handled specifically in these
609 constructs. If another value of -O or the negated form of a -f, -m, or
610 -W switch is found later in the command line, the earlier switch
611 value is ignored, except with {S*} where S is just one letter; this
612 passes all matching options.
614 The character | at the beginning of the predicate text is used to indicate
615 that a command should be piped to the following command, but only if -pipe
618 Note that it is built into GCC which switches take arguments and which
619 do not. You might think it would be useful to generalize this to
620 allow each compiler's spec to say which switches take arguments. But
621 this cannot be done in a consistent fashion. GCC cannot even decide
622 which input files have been specified without knowing which switches
623 take arguments, and it must know which input files to compile in order
624 to tell which compilers to run.
626 GCC also knows implicitly that arguments starting in `-l' are to be
627 treated as compiler output files, and passed to the linker in their
628 proper position among the other output files. */
630 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
632 /* config.h can define ASM_SPEC to provide extra args to the assembler
633 or extra switch-translations. */
638 /* config.h can define ASM_FINAL_SPEC to run a post processor after
639 the assembler has run. */
640 #ifndef ASM_FINAL_SPEC
641 #define ASM_FINAL_SPEC \
643 objcopy --extract-dwo \
644 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
645 %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\
646 objcopy --strip-dwo \
647 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
651 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
652 or extra switch-translations. */
657 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
658 or extra switch-translations. */
663 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
664 or extra switch-translations. */
666 #define CC1PLUS_SPEC ""
669 /* config.h can define LINK_SPEC to provide extra args to the linker
670 or extra switch-translations. */
675 /* config.h can define LIB_SPEC to override the default libraries. */
677 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
680 /* When using -fsplit-stack we need to wrap pthread_create, in order
681 to initialize the stack guard. We always use wrapping, rather than
682 shared library ordering, and we keep the wrapper function in
683 libgcc. This is not yet a real spec, though it could become one;
684 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
685 only works with GNU ld and gold. */
686 #ifdef HAVE_GOLD_NON_DEFAULT_SPLIT_STACK
687 #define STACK_SPLIT_SPEC " %{fsplit-stack: -fuse-ld=gold --wrap=pthread_create}"
689 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
693 #define STATIC_LIBASAN_LIBS \
694 " %{static-libasan|static:%:include(libsanitizer.spec)%(link_libasan)}"
695 #ifdef LIBASAN_EARLY_SPEC
696 #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
697 #elif defined(HAVE_LD_STATIC_DYNAMIC)
698 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
699 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
702 #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
706 #ifndef LIBASAN_EARLY_SPEC
707 #define LIBASAN_EARLY_SPEC ""
711 #define STATIC_LIBTSAN_LIBS \
712 " %{static-libtsan|static:%:include(libsanitizer.spec)%(link_libtsan)}"
713 #ifdef LIBTSAN_EARLY_SPEC
714 #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
715 #elif defined(HAVE_LD_STATIC_DYNAMIC)
716 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
717 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
720 #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
724 #ifndef LIBTSAN_EARLY_SPEC
725 #define LIBTSAN_EARLY_SPEC ""
729 #define STATIC_LIBLSAN_LIBS \
730 " %{static-liblsan|static:%:include(libsanitizer.spec)%(link_liblsan)}"
731 #ifdef LIBLSAN_EARLY_SPEC
732 #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
733 #elif defined(HAVE_LD_STATIC_DYNAMIC)
734 #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
735 "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
738 #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
742 #ifndef LIBLSAN_EARLY_SPEC
743 #define LIBLSAN_EARLY_SPEC ""
746 #ifndef LIBUBSAN_SPEC
747 #define STATIC_LIBUBSAN_LIBS \
748 " %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}"
749 #ifdef HAVE_LD_STATIC_DYNAMIC
750 #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
751 "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
754 #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
758 /* Linker options for compressed debug sections. */
759 #if HAVE_LD_COMPRESS_DEBUG == 0
760 /* No linker support. */
761 #define LINK_COMPRESS_DEBUG_SPEC \
762 " %{gz*:%e-gz is not supported in this configuration} "
763 #elif HAVE_LD_COMPRESS_DEBUG == 1
764 /* GNU style on input, GNU ld options. Reject, not useful. */
765 #define LINK_COMPRESS_DEBUG_SPEC \
766 " %{gz*:%e-gz is not supported in this configuration} "
767 #elif HAVE_LD_COMPRESS_DEBUG == 2
768 /* GNU style, GNU gold options. */
769 #define LINK_COMPRESS_DEBUG_SPEC \
770 " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
771 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
772 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
773 #elif HAVE_LD_COMPRESS_DEBUG == 3
774 /* ELF gABI style. */
775 #define LINK_COMPRESS_DEBUG_SPEC \
776 " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
777 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
778 " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
780 #error Unknown value for HAVE_LD_COMPRESS_DEBUG.
783 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
786 #if defined(REAL_LIBGCC_SPEC)
787 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
788 #elif defined(LINK_LIBGCC_SPECIAL_1)
789 /* Have gcc do the search for libgcc.a. */
790 #define LIBGCC_SPEC "libgcc.a%s"
792 #define LIBGCC_SPEC "-lgcc"
796 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
797 #ifndef STARTFILE_SPEC
798 #define STARTFILE_SPEC \
799 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
802 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
804 #define ENDFILE_SPEC ""
808 #define LINKER_NAME "collect2"
811 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
812 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
817 /* Assembler options for compressed debug sections. */
818 #if HAVE_LD_COMPRESS_DEBUG < 2
819 /* Reject if the linker cannot write compressed debug sections. */
820 #define ASM_COMPRESS_DEBUG_SPEC \
821 " %{gz*:%e-gz is not supported in this configuration} "
822 #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */
823 #if HAVE_AS_COMPRESS_DEBUG == 0
824 /* No assembler support. Ignore silently. */
825 #define ASM_COMPRESS_DEBUG_SPEC \
827 #elif HAVE_AS_COMPRESS_DEBUG == 1
828 /* GNU style, GNU as options. */
829 #define ASM_COMPRESS_DEBUG_SPEC \
830 " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \
831 " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \
832 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
833 #elif HAVE_AS_COMPRESS_DEBUG == 2
834 /* ELF gABI style. */
835 #define ASM_COMPRESS_DEBUG_SPEC \
836 " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
837 " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
838 " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
840 #error Unknown value for HAVE_AS_COMPRESS_DEBUG.
842 #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */
844 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
846 #ifndef ASM_DEBUG_SPEC
847 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
848 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
849 # define ASM_DEBUG_SPEC \
850 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
851 ? "%{%:debug-level-gt(0):" \
852 "%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \
853 : "%{%:debug-level-gt(0):" \
854 "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
856 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
857 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gstabs}}" ASM_MAP
859 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
860 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gdwarf2}}" ASM_MAP
864 #ifndef ASM_DEBUG_SPEC
865 # define ASM_DEBUG_SPEC ""
868 /* Here is the spec for running the linker, after compiling all files. */
870 /* This is overridable by the target in case they need to specify the
871 -lgcc and -lc order specially, yet not require them to override all
872 of LINK_COMMAND_SPEC. */
873 #ifndef LINK_GCC_C_SEQUENCE_SPEC
874 #define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}"
877 #ifndef LINK_SSP_SPEC
878 #ifdef TARGET_LIBC_PROVIDES_SSP
879 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
880 "|fstack-protector-strong|fstack-protector-explicit:}"
882 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
883 "|fstack-protector-strong|fstack-protector-explicit" \
884 ":-lssp_nonshared -lssp}"
888 #ifdef ENABLE_DEFAULT_PIE
889 #define PIE_SPEC "!no-pie"
890 #define NO_FPIE1_SPEC "fno-pie"
891 #define FPIE1_SPEC NO_FPIE1_SPEC ":;"
892 #define NO_FPIE2_SPEC "fno-PIE"
893 #define FPIE2_SPEC NO_FPIE2_SPEC ":;"
894 #define NO_FPIE_SPEC NO_FPIE1_SPEC "|" NO_FPIE2_SPEC
895 #define FPIE_SPEC NO_FPIE_SPEC ":;"
896 #define NO_FPIC1_SPEC "fno-pic"
897 #define FPIC1_SPEC NO_FPIC1_SPEC ":;"
898 #define NO_FPIC2_SPEC "fno-PIC"
899 #define FPIC2_SPEC NO_FPIC2_SPEC ":;"
900 #define NO_FPIC_SPEC NO_FPIC1_SPEC "|" NO_FPIC2_SPEC
901 #define FPIC_SPEC NO_FPIC_SPEC ":;"
902 #define NO_FPIE1_AND_FPIC1_SPEC NO_FPIE1_SPEC "|" NO_FPIC1_SPEC
903 #define FPIE1_OR_FPIC1_SPEC NO_FPIE1_AND_FPIC1_SPEC ":;"
904 #define NO_FPIE2_AND_FPIC2_SPEC NO_FPIE2_SPEC "|" NO_FPIC2_SPEC
905 #define FPIE2_OR_FPIC2_SPEC NO_FPIE2_AND_FPIC2_SPEC ":;"
906 #define NO_FPIE_AND_FPIC_SPEC NO_FPIE_SPEC "|" NO_FPIC_SPEC
907 #define FPIE_OR_FPIC_SPEC NO_FPIE_AND_FPIC_SPEC ":;"
909 #define PIE_SPEC "pie"
910 #define FPIE1_SPEC "fpie"
911 #define NO_FPIE1_SPEC FPIE1_SPEC ":;"
912 #define FPIE2_SPEC "fPIE"
913 #define NO_FPIE2_SPEC FPIE2_SPEC ":;"
914 #define FPIE_SPEC FPIE1_SPEC "|" FPIE2_SPEC
915 #define NO_FPIE_SPEC FPIE_SPEC ":;"
916 #define FPIC1_SPEC "fpic"
917 #define NO_FPIC1_SPEC FPIC1_SPEC ":;"
918 #define FPIC2_SPEC "fPIC"
919 #define NO_FPIC2_SPEC FPIC2_SPEC ":;"
920 #define FPIC_SPEC FPIC1_SPEC "|" FPIC2_SPEC
921 #define NO_FPIC_SPEC FPIC_SPEC ":;"
922 #define FPIE1_OR_FPIC1_SPEC FPIE1_SPEC "|" FPIC1_SPEC
923 #define NO_FPIE1_AND_FPIC1_SPEC FPIE1_OR_FPIC1_SPEC ":;"
924 #define FPIE2_OR_FPIC2_SPEC FPIE2_SPEC "|" FPIC2_SPEC
925 #define NO_FPIE2_AND_FPIC2_SPEC FPIE1_OR_FPIC2_SPEC ":;"
926 #define FPIE_OR_FPIC_SPEC FPIE_SPEC "|" FPIC_SPEC
927 #define NO_FPIE_AND_FPIC_SPEC FPIE_OR_FPIC_SPEC ":;"
930 #ifndef LINK_PIE_SPEC
933 #define LD_PIE_SPEC "-pie"
936 #define LD_PIE_SPEC ""
938 #define LINK_PIE_SPEC "%{static|shared|r:;" PIE_SPEC ":" LD_PIE_SPEC "} "
941 #ifndef LINK_BUILDID_SPEC
942 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
943 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
947 /* Conditional to test whether the LTO plugin is used or not.
948 FIXME: For slim LTO we will need to enable plugin unconditionally. This
949 still cause problems with PLUGIN_LD != LD and when plugin is built but
950 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
951 plugin only when LTO is enabled. We still honor explicit
952 -fuse-linker-plugin if the linker used understands -plugin. */
954 /* The linker has some plugin support. */
955 #if HAVE_LTO_PLUGIN > 0
956 /* The linker used has full plugin support, use LTO plugin by default. */
957 #if HAVE_LTO_PLUGIN == 2
958 #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
959 #define PLUGIN_COND_CLOSE "}"
961 /* The linker used has limited plugin support, use LTO plugin with explicit
962 -fuse-linker-plugin. */
963 #define PLUGIN_COND "fuse-linker-plugin"
964 #define PLUGIN_COND_CLOSE ""
966 #define LINK_PLUGIN_SPEC \
968 -plugin %(linker_plugin_file) \
969 -plugin-opt=%(lto_wrapper) \
970 -plugin-opt=-fresolution=%u.res \
971 %{flinker-output=*:-plugin-opt=-linker-output-known} \
972 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
975 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
976 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
977 %e-fuse-linker-plugin is not supported in this configuration}"
980 /* Linker command line options for -fsanitize= early on the command line. */
981 #ifndef SANITIZER_EARLY_SPEC
982 #define SANITIZER_EARLY_SPEC "\
983 %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
984 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
985 %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}}"
988 /* Linker command line options for -fsanitize= late on the command line. */
989 #ifndef SANITIZER_SPEC
990 #define SANITIZER_SPEC "\
991 %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
992 %{static:%ecannot specify -static with -fsanitize=address}}\
993 %{%:sanitize(thread):" LIBTSAN_SPEC "\
994 %{static:%ecannot specify -static with -fsanitize=thread}}\
995 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
996 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}}"
999 #ifndef POST_LINK_SPEC
1000 #define POST_LINK_SPEC ""
1003 /* This is the spec to use, once the code for creating the vtable
1004 verification runtime library, libvtv.so, has been created. Currently
1005 the vtable verification runtime functions are in libstdc++, so we use
1006 the spec just below this one. */
1007 #ifndef VTABLE_VERIFICATION_SPEC
1008 #if ENABLE_VTABLE_VERIFY
1009 #define VTABLE_VERIFICATION_SPEC "\
1010 %{!nostdlib:%{!r:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
1011 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}}"
1013 #define VTABLE_VERIFICATION_SPEC "\
1014 %{fvtable-verify=none:} \
1015 %{fvtable-verify=std: \
1016 %e-fvtable-verify=std is not supported in this configuration} \
1017 %{fvtable-verify=preinit: \
1018 %e-fvtable-verify=preinit is not supported in this configuration}"
1022 /* -u* was put back because both BSD and SysV seem to support it. */
1023 /* %{static|no-pie|static-pie:} simply prevents an error message:
1024 1. If the target machine doesn't handle -static.
1025 2. If PIE isn't enabled by default.
1026 3. If the target machine doesn't handle -static-pie.
1028 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
1029 scripts which exist in user specified directories, or in standard
1031 /* We pass any -flto flags on to the linker, which is expected
1032 to understand them. In practice, this means it had better be collect2. */
1033 /* %{e*} includes -export-dynamic; see comment in common.opt. */
1034 #ifndef LINK_COMMAND_SPEC
1035 #define LINK_COMMAND_SPEC "\
1036 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
1039 "%{flto|flto=*:%<fcompare-debug*} \
1040 %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
1041 "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
1042 "%X %{o*} %{e*} %{N} %{n} %{r}\
1043 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
1044 %{static|no-pie|static-pie:} %@{L*} %(mfwrap) %(link_libgcc) " \
1045 VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o "" \
1046 %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
1047 %:include(libgomp.spec)%(link_gomp)}\
1048 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
1049 %(mflib) " STACK_SPLIT_SPEC "\
1050 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
1051 %{!nostdlib:%{!r:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}}\
1052 %{!nostdlib:%{!r:%{!nostartfiles:%E}}} %{T*} \n%(post_link) }}}}}}"
1055 #ifndef LINK_LIBGCC_SPEC
1056 /* Generate -L options for startfile prefix list. */
1057 # define LINK_LIBGCC_SPEC "%D"
1060 #ifndef STARTFILE_PREFIX_SPEC
1061 # define STARTFILE_PREFIX_SPEC ""
1064 #ifndef SYSROOT_SPEC
1065 # define SYSROOT_SPEC "--sysroot=%R"
1068 #ifndef SYSROOT_SUFFIX_SPEC
1069 # define SYSROOT_SUFFIX_SPEC ""
1072 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
1073 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
1076 static const char *asm_debug
= ASM_DEBUG_SPEC
;
1077 static const char *cpp_spec
= CPP_SPEC
;
1078 static const char *cc1_spec
= CC1_SPEC
;
1079 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
1080 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
1081 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
1082 static const char *asm_spec
= ASM_SPEC
;
1083 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
1084 static const char *link_spec
= LINK_SPEC
;
1085 static const char *lib_spec
= LIB_SPEC
;
1086 static const char *link_gomp_spec
= "";
1087 static const char *libgcc_spec
= LIBGCC_SPEC
;
1088 static const char *endfile_spec
= ENDFILE_SPEC
;
1089 static const char *startfile_spec
= STARTFILE_SPEC
;
1090 static const char *linker_name_spec
= LINKER_NAME
;
1091 static const char *linker_plugin_file_spec
= "";
1092 static const char *lto_wrapper_spec
= "";
1093 static const char *lto_gcc_spec
= "";
1094 static const char *post_link_spec
= POST_LINK_SPEC
;
1095 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
1096 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
1097 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
1098 static const char *sysroot_spec
= SYSROOT_SPEC
;
1099 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
1100 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
1101 static const char *self_spec
= "";
1103 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
1104 There should be no need to override these in target dependent files,
1105 but we need to copy them to the specs file so that newer versions
1106 of the GCC driver can correctly drive older tool chains with the
1107 appropriate -B options. */
1109 /* When cpplib handles traditional preprocessing, get rid of this, and
1110 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
1111 that we default the front end language better. */
1112 static const char *trad_capable_cpp
=
1113 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
1115 /* We don't wrap .d files in %W{} since a missing .d file, and
1116 therefore no dependency entry, confuses make into thinking a .o
1117 file that happens to exist is up-to-date. */
1118 static const char *cpp_unique_options
=
1119 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %@{I*&F*} %{P} %I\
1120 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
1121 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
1122 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
1123 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
1124 %{remap} %{g3|ggdb3|gstabs3|gxcoff3|gvms3:-dD}\
1125 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1126 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
1129 /* This contains cpp options which are common with cc1_options and are passed
1130 only when preprocessing only to avoid duplication. We pass the cc1 spec
1131 options to the preprocessor so that it the cc1 spec may manipulate
1132 options used to set target flags. Those special target flags settings may
1133 in turn cause preprocessor symbols to be defined specially. */
1134 static const char *cpp_options
=
1135 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
1136 %{f*} %{g*:%{%:debug-level-gt(0):%{g*}\
1137 %{!fno-working-directory:-fworking-directory}}} %{O*}\
1138 %{undef} %{save-temps*:-fpch-preprocess}";
1140 /* This contains cpp options which are not passed when the preprocessor
1141 output will be used by another program. */
1142 static const char *cpp_debug_options
= "%{d*}";
1144 /* NB: This is shared amongst all front-ends, except for Ada. */
1145 static const char *cc1_options
=
1146 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
1147 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1148 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
1149 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
1150 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
1151 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
1152 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
1153 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
1154 %{-target-help:--target-help}\
1155 %{-version:--version}\
1156 %{-help=*:--help=%*}\
1157 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
1158 %{fsyntax-only:-o %j} %{-param*}\
1159 %{coverage:-fprofile-arcs -ftest-coverage}\
1160 %{fprofile-arcs|fprofile-generate*|coverage:\
1161 %{!fprofile-update=single:\
1162 %{pthread:-fprofile-update=prefer-atomic}}}";
1164 static const char *asm_options
=
1165 "%{-target-help:%:print-asm-header()} "
1167 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
1168 to the assembler equivalents. */
1169 "%{v} %{w:-W} %{I*} "
1171 ASM_COMPRESS_DEBUG_SPEC
1172 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
1174 static const char *invoke_as
=
1175 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1177 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1178 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
1182 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1183 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
1187 /* Some compilers have limits on line lengths, and the multilib_select
1188 and/or multilib_matches strings can be very long, so we build them at
1190 static struct obstack multilib_obstack
;
1191 static const char *multilib_select
;
1192 static const char *multilib_matches
;
1193 static const char *multilib_defaults
;
1194 static const char *multilib_exclusions
;
1195 static const char *multilib_reuse
;
1197 /* Check whether a particular argument is a default argument. */
1199 #ifndef MULTILIB_DEFAULTS
1200 #define MULTILIB_DEFAULTS { "" }
1203 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
1205 #ifndef DRIVER_SELF_SPECS
1206 #define DRIVER_SELF_SPECS ""
1209 /* Linking to libgomp implies pthreads. This is particularly important
1210 for targets that use different start files and suchlike. */
1211 #ifndef GOMP_SELF_SPECS
1212 #define GOMP_SELF_SPECS \
1213 "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \
1217 /* Likewise for -fgnu-tm. */
1218 #ifndef GTM_SELF_SPECS
1219 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1222 static const char *const driver_self_specs
[] = {
1223 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1224 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
1227 #ifndef OPTION_DEFAULT_SPECS
1228 #define OPTION_DEFAULT_SPECS { "", "" }
1237 static const struct default_spec
1238 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1242 struct user_specs
*next
;
1243 const char *filename
;
1246 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1249 /* Record the mapping from file suffixes for compilation specs. */
1253 const char *suffix
; /* Use this compiler for input files
1254 whose names end in this suffix. */
1256 const char *spec
; /* To use this compiler, run this spec. */
1258 const char *cpp_spec
; /* If non-NULL, substitute this spec
1259 for `%C', rather than the usual
1261 int combinable
; /* If nonzero, compiler can deal with
1262 multiple source files at once (IMA). */
1263 int needs_preprocessing
; /* If nonzero, source files need to
1264 be run through a preprocessor. */
1267 /* Pointer to a vector of `struct compiler' that gives the spec for
1268 compiling a file, based on its suffix.
1269 A file that does not end in any of these suffixes will be passed
1270 unchanged to the loader and nothing else will be done to it.
1272 An entry containing two 0s is used to terminate the vector.
1274 If multiple entries match a file, the last matching one is used. */
1276 static struct compiler
*compilers
;
1278 /* Number of entries in `compilers', not counting the null terminator. */
1280 static int n_compilers
;
1282 /* The default list of file name suffixes and their compilation specs. */
1284 static const struct compiler default_compilers
[] =
1286 /* Add lists of suffixes of known languages here. If those languages
1287 were not present when we built the driver, we will hit these copies
1288 and be given a more meaningful error than "file not used since
1289 linking is not done". */
1290 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1291 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1292 {".mii", "#Objective-C++", 0, 0, 0},
1293 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1294 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1295 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1296 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1297 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1298 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1299 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1300 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1301 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1302 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1303 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1304 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1305 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1306 {".r", "#Ratfor", 0, 0, 0},
1307 {".go", "#Go", 0, 1, 0},
1308 {".d", "#D", 0, 1, 0}, {".dd", "#D", 0, 1, 0}, {".di", "#D", 0, 1, 0},
1309 /* Next come the entries for C. */
1310 {".c", "@c", 0, 0, 1},
1312 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1313 external preprocessor if -save-temps is given. */
1314 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1317 %eGNU C no longer supports -traditional without -E}\
1318 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1319 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1320 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1322 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1323 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1324 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1326 "%{!E:%e-E or -x required when input is from standard input}\
1327 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1328 {".h", "@c-header", 0, 0, 0},
1330 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1331 external preprocessor if -save-temps is given. */
1332 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1334 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1335 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1336 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1338 %{!fsyntax-only:%{!S:-o %g.s} \
1339 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1340 %W{o*:--output-pch=%*}}%V}}\
1341 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1342 cc1 %(cpp_unique_options) %(cc1_options)\
1343 %{!fsyntax-only:%{!S:-o %g.s} \
1344 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1345 %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
1346 {".i", "@cpp-output", 0, 0, 0},
1348 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1349 {".s", "@assembler", 0, 0, 0},
1351 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1352 {".sx", "@assembler-with-cpp", 0, 0, 0},
1353 {".S", "@assembler-with-cpp", 0, 0, 0},
1354 {"@assembler-with-cpp",
1355 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1356 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1357 %{E|M|MM:%(cpp_debug_options)}\
1358 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1359 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1361 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1362 %{E|M|MM:%(cpp_debug_options)}\
1363 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1364 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1369 /* Mark end of table. */
1373 /* Number of elements in default_compilers, not counting the terminator. */
1375 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1377 typedef char *char_p
; /* For DEF_VEC_P. */
1379 /* A vector of options to give to the linker.
1380 These options are accumulated by %x,
1381 and substituted into the linker command with %X. */
1382 static vec
<char_p
> linker_options
;
1384 /* A vector of options to give to the assembler.
1385 These options are accumulated by -Wa,
1386 and substituted into the assembler command with %Y. */
1387 static vec
<char_p
> assembler_options
;
1389 /* A vector of options to give to the preprocessor.
1390 These options are accumulated by -Wp,
1391 and substituted into the preprocessor command with %Z. */
1392 static vec
<char_p
> preprocessor_options
;
1395 skip_whitespace (char *p
)
1399 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1400 be considered whitespace. */
1401 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1403 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1417 /* Structures to keep track of prefixes to try when looking for files. */
1421 const char *prefix
; /* String to prepend to the path. */
1422 struct prefix_list
*next
; /* Next in linked list. */
1423 int require_machine_suffix
; /* Don't use without machine_suffix. */
1424 /* 2 means try both machine_suffix and just_machine_suffix. */
1425 int priority
; /* Sort key - priority within list. */
1426 int os_multilib
; /* 1 if OS multilib scheme should be used,
1427 0 for GCC multilib scheme. */
1432 struct prefix_list
*plist
; /* List of prefixes to try */
1433 int max_len
; /* Max length of a prefix in PLIST */
1434 const char *name
; /* Name of this list (used in config stuff) */
1437 /* List of prefixes to try when looking for executables. */
1439 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1441 /* List of prefixes to try when looking for startup (crt0) files. */
1443 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1445 /* List of prefixes to try when looking for include files. */
1447 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1449 /* Suffix to attach to directories searched for commands.
1450 This looks like `MACHINE/VERSION/'. */
1452 static const char *machine_suffix
= 0;
1454 /* Suffix to attach to directories searched for commands.
1455 This is just `MACHINE/'. */
1457 static const char *just_machine_suffix
= 0;
1459 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1461 static const char *gcc_exec_prefix
;
1463 /* Adjusted value of standard_libexec_prefix. */
1465 static const char *gcc_libexec_prefix
;
1467 /* Default prefixes to attach to command names. */
1469 #ifndef STANDARD_STARTFILE_PREFIX_1
1470 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1472 #ifndef STANDARD_STARTFILE_PREFIX_2
1473 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1476 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1477 #undef MD_EXEC_PREFIX
1478 #undef MD_STARTFILE_PREFIX
1479 #undef MD_STARTFILE_PREFIX_1
1482 /* If no prefixes defined, use the null string, which will disable them. */
1483 #ifndef MD_EXEC_PREFIX
1484 #define MD_EXEC_PREFIX ""
1486 #ifndef MD_STARTFILE_PREFIX
1487 #define MD_STARTFILE_PREFIX ""
1489 #ifndef MD_STARTFILE_PREFIX_1
1490 #define MD_STARTFILE_PREFIX_1 ""
1493 /* These directories are locations set at configure-time based on the
1494 --prefix option provided to configure. Their initializers are
1495 defined in Makefile.in. These paths are not *directly* used when
1496 gcc_exec_prefix is set because, in that case, we know where the
1497 compiler has been installed, and use paths relative to that
1498 location instead. */
1499 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1500 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1501 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1502 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1504 /* For native compilers, these are well-known paths containing
1505 components that may be provided by the system. For cross
1506 compilers, these paths are not used. */
1507 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1508 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1509 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1510 static const char *const standard_startfile_prefix_1
1511 = STANDARD_STARTFILE_PREFIX_1
;
1512 static const char *const standard_startfile_prefix_2
1513 = STANDARD_STARTFILE_PREFIX_2
;
1515 /* A relative path to be used in finding the location of tools
1516 relative to the driver. */
1517 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1519 /* A prefix to be used when this is an accelerator compiler. */
1520 static const char *const accel_dir_suffix
= ACCEL_DIR_SUFFIX
;
1522 /* Subdirectory to use for locating libraries. Set by
1523 set_multilib_dir based on the compilation options. */
1525 static const char *multilib_dir
;
1527 /* Subdirectory to use for locating libraries in OS conventions. Set by
1528 set_multilib_dir based on the compilation options. */
1530 static const char *multilib_os_dir
;
1532 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1533 set_multilib_dir based on the compilation options. */
1535 static const char *multiarch_dir
;
1537 /* Structure to keep track of the specs that have been defined so far.
1538 These are accessed using %(specname) in a compiler or link
1543 /* The following 2 fields must be first */
1544 /* to allow EXTRA_SPECS to be initialized */
1545 const char *name
; /* name of the spec. */
1546 const char *ptr
; /* available ptr if no static pointer */
1548 /* The following fields are not initialized */
1549 /* by EXTRA_SPECS */
1550 const char **ptr_spec
; /* pointer to the spec itself. */
1551 struct spec_list
*next
; /* Next spec in linked list. */
1552 int name_len
; /* length of the name */
1553 bool user_p
; /* whether string come from file spec. */
1554 bool alloc_p
; /* whether string was allocated */
1555 const char *default_ptr
; /* The default value of *ptr_spec. */
1558 #define INIT_STATIC_SPEC(NAME,PTR) \
1559 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false, \
1562 /* List of statically defined specs. */
1563 static struct spec_list static_specs
[] =
1565 INIT_STATIC_SPEC ("asm", &asm_spec
),
1566 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1567 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1568 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1569 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1570 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1571 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1572 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1573 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1574 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1575 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1576 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1577 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1578 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1579 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1580 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1581 INIT_STATIC_SPEC ("link", &link_spec
),
1582 INIT_STATIC_SPEC ("lib", &lib_spec
),
1583 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1584 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1585 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1586 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1587 INIT_STATIC_SPEC ("version", &compiler_version
),
1588 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1589 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1590 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1591 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1592 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1593 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1594 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1595 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1596 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1597 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1598 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1599 INIT_STATIC_SPEC ("post_link", &post_link_spec
),
1600 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1601 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1602 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1603 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1604 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1605 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1606 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1607 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1608 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1611 #ifdef EXTRA_SPECS /* additional specs needed */
1612 /* Structure to keep track of just the first two args of a spec_list.
1613 That is all that the EXTRA_SPECS macro gives us. */
1616 const char *const name
;
1617 const char *const ptr
;
1620 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1621 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1624 /* List of dynamically allocates specs that have been defined so far. */
1626 static struct spec_list
*specs
= (struct spec_list
*) 0;
1628 /* List of static spec functions. */
1630 static const struct spec_function static_spec_functions
[] =
1632 { "getenv", getenv_spec_function
},
1633 { "if-exists", if_exists_spec_function
},
1634 { "if-exists-else", if_exists_else_spec_function
},
1635 { "sanitize", sanitize_spec_function
},
1636 { "replace-outfile", replace_outfile_spec_function
},
1637 { "remove-outfile", remove_outfile_spec_function
},
1638 { "version-compare", version_compare_spec_function
},
1639 { "include", include_spec_function
},
1640 { "find-file", find_file_spec_function
},
1641 { "find-plugindir", find_plugindir_spec_function
},
1642 { "print-asm-header", print_asm_header_spec_function
},
1643 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1644 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1645 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1646 { "pass-through-libs", pass_through_libs_spec_func
},
1647 { "replace-extension", replace_extension_spec_func
},
1648 { "gt", greater_than_spec_func
},
1649 { "debug-level-gt", debug_level_greater_than_spec_func
},
1650 #ifdef EXTRA_SPEC_FUNCTIONS
1651 EXTRA_SPEC_FUNCTIONS
1656 static int processing_spec_function
;
1658 /* Add appropriate libgcc specs to OBSTACK, taking into account
1659 various permutations of -shared-libgcc, -shared, and such. */
1661 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1663 #ifndef USE_LD_AS_NEEDED
1664 #define USE_LD_AS_NEEDED 0
1668 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1669 const char *static_name
, const char *eh_name
)
1673 #if USE_LD_AS_NEEDED
1674 buf
= concat ("%{static|static-libgcc|static-pie:", static_name
, " ", eh_name
, "}"
1675 "%{!static:%{!static-libgcc:%{!static-pie:"
1676 "%{!shared-libgcc:",
1677 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1678 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1681 shared_name
, "%{!shared: ", static_name
, "}"
1684 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1685 "%{!static:%{!static-libgcc:"
1687 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1688 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1692 "%{shared-libgcc:", shared_name
, "}"
1693 "%{!shared-libgcc:", static_name
, "}"
1696 "%{shared:", shared_name
, "}"
1701 obstack_grow (obstack
, buf
, strlen (buf
));
1704 #endif /* ENABLE_SHARED_LIBGCC */
1706 /* Initialize the specs lookup routines. */
1711 struct spec_list
*next
= (struct spec_list
*) 0;
1712 struct spec_list
*sl
= (struct spec_list
*) 0;
1716 return; /* Already initialized. */
1719 fnotice (stderr
, "Using built-in specs.\n");
1722 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1724 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1726 sl
= &extra_specs
[i
];
1727 sl
->name
= extra_specs_1
[i
].name
;
1728 sl
->ptr
= extra_specs_1
[i
].ptr
;
1730 sl
->name_len
= strlen (sl
->name
);
1731 sl
->ptr_spec
= &sl
->ptr
;
1732 gcc_assert (sl
->ptr_spec
!= NULL
);
1733 sl
->default_ptr
= sl
->ptr
;
1738 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1740 sl
= &static_specs
[i
];
1745 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1746 /* ??? If neither -shared-libgcc nor --static-libgcc was
1747 seen, then we should be making an educated guess. Some proposed
1748 heuristics for ELF include:
1750 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1751 program will be doing dynamic loading, which will likely
1752 need the shared libgcc.
1754 (2) If "-ldl", then it's also a fair bet that we're doing
1757 (3) For each ET_DYN we're linking against (either through -lfoo
1758 or /some/path/foo.so), check to see whether it or one of
1759 its dependencies depends on a shared libgcc.
1763 If the runtime is fixed to look for program headers instead
1764 of calling __register_frame_info at all, for each object,
1765 use the shared libgcc if any EH symbol referenced.
1767 If crtstuff is fixed to not invoke __register_frame_info
1768 automatically, for each object, use the shared libgcc if
1769 any non-empty unwind section found.
1771 Doing any of this probably requires invoking an external program to
1772 do the actual object file scanning. */
1774 const char *p
= libgcc_spec
;
1777 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1778 when given the proper command line arguments. */
1781 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1783 init_gcc_specs (&obstack
,
1785 #ifdef USE_LIBUNWIND_EXCEPTIONS
1791 #ifdef USE_LIBUNWIND_EXCEPTIONS
1792 # ifdef HAVE_LD_STATIC_DYNAMIC
1793 " %{!static:%{!static-pie:" LD_STATIC_OPTION
"}} -lunwind"
1794 " %{!static:%{!static-pie:" LD_DYNAMIC_OPTION
"}}"
1804 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1806 /* Ug. We don't know shared library extensions. Hope that
1807 systems that use this form don't do shared libraries. */
1808 init_gcc_specs (&obstack
,
1812 #ifdef USE_LIBUNWIND_EXCEPTIONS
1821 obstack_1grow (&obstack
, *p
);
1822 in_sep
= (*p
== ' ');
1827 obstack_1grow (&obstack
, '\0');
1828 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1831 #ifdef USE_AS_TRADITIONAL_FORMAT
1832 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1834 static const char tf
[] = "--traditional-format ";
1835 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1836 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1837 asm_spec
= XOBFINISH (&obstack
, const char *);
1841 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1842 defined LINKER_HASH_STYLE
1843 # ifdef LINK_BUILDID_SPEC
1844 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1845 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1847 # ifdef LINK_EH_SPEC
1848 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1849 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1851 # ifdef LINKER_HASH_STYLE
1852 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1855 static const char hash_style
[] = "--hash-style=";
1856 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1857 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1858 obstack_1grow (&obstack
, ' ');
1861 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1862 link_spec
= XOBFINISH (&obstack
, const char *);
1868 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1869 removed; If the spec starts with a + then SPEC is added to the end of the
1873 set_spec (const char *name
, const char *spec
, bool user_p
)
1875 struct spec_list
*sl
;
1876 const char *old_spec
;
1877 int name_len
= strlen (name
);
1880 /* If this is the first call, initialize the statically allocated specs. */
1883 struct spec_list
*next
= (struct spec_list
*) 0;
1884 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1886 sl
= &static_specs
[i
];
1893 /* See if the spec already exists. */
1894 for (sl
= specs
; sl
; sl
= sl
->next
)
1895 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1900 /* Not found - make it. */
1901 sl
= XNEW (struct spec_list
);
1902 sl
->name
= xstrdup (name
);
1903 sl
->name_len
= name_len
;
1904 sl
->ptr_spec
= &sl
->ptr
;
1906 *(sl
->ptr_spec
) = "";
1908 sl
->default_ptr
= NULL
;
1912 old_spec
= *(sl
->ptr_spec
);
1913 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1914 ? concat (old_spec
, spec
+ 1, NULL
)
1919 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1922 /* Free the old spec. */
1923 if (old_spec
&& sl
->alloc_p
)
1924 free (CONST_CAST (char *, old_spec
));
1926 sl
->user_p
= user_p
;
1930 /* Accumulate a command (program name and args), and run it. */
1932 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1934 /* Vector of pointers to arguments in the current line of specifications. */
1935 static vec
<const_char_p
> argbuf
;
1937 /* Likewise, but for the current @file. */
1938 static vec
<const_char_p
> at_file_argbuf
;
1940 /* Whether an @file is currently open. */
1941 static bool in_at_file
= false;
1943 /* Were the options -c, -S or -E passed. */
1944 static int have_c
= 0;
1946 /* Was the option -o passed. */
1947 static int have_o
= 0;
1949 /* Was the option -E passed. */
1950 static int have_E
= 0;
1952 /* Pointer to output file name passed in with -o. */
1953 static const char *output_file
= 0;
1955 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1956 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1959 static struct temp_name
{
1960 const char *suffix
; /* suffix associated with the code. */
1961 int length
; /* strlen (suffix). */
1962 int unique
; /* Indicates whether %g or %u/%U was used. */
1963 const char *filename
; /* associated filename. */
1964 int filename_length
; /* strlen (filename). */
1965 struct temp_name
*next
;
1968 /* Number of commands executed so far. */
1970 static int execution_count
;
1972 /* Number of commands that exited with a signal. */
1974 static int signal_count
;
1976 /* Allocate the argument vector. */
1982 at_file_argbuf
.create (10);
1985 /* Clear out the vector of arguments (after a command is executed). */
1990 argbuf
.truncate (0);
1991 at_file_argbuf
.truncate (0);
1994 /* Add one argument to the vector at the end.
1995 This is done when a space is seen or at the end of the line.
1996 If DELETE_ALWAYS is nonzero, the arg is a filename
1997 and the file should be deleted eventually.
1998 If DELETE_FAILURE is nonzero, the arg is a filename
1999 and the file should be deleted if this compilation fails. */
2002 store_arg (const char *arg
, int delete_always
, int delete_failure
)
2005 at_file_argbuf
.safe_push (arg
);
2007 argbuf
.safe_push (arg
);
2009 if (delete_always
|| delete_failure
)
2012 /* If the temporary file we should delete is specified as
2013 part of a joined argument extract the filename. */
2015 && (p
= strrchr (arg
, '=')))
2017 record_temp_file (arg
, delete_always
, delete_failure
);
2021 /* Open a temporary @file into which subsequent arguments will be stored. */
2027 fatal_error (input_location
, "cannot open nested response file");
2032 /* Close the temporary @file and add @file to the argument list. */
2035 close_at_file (void)
2038 fatal_error (input_location
, "cannot close nonexistent response file");
2042 const unsigned int n_args
= at_file_argbuf
.length ();
2046 char **argv
= (char **) alloca (sizeof (char *) * (n_args
+ 1));
2047 char *temp_file
= make_temp_file ("");
2048 char *at_argument
= concat ("@", temp_file
, NULL
);
2049 FILE *f
= fopen (temp_file
, "w");
2053 /* Copy the strings over. */
2054 for (i
= 0; i
< n_args
; i
++)
2055 argv
[i
] = CONST_CAST (char *, at_file_argbuf
[i
]);
2058 at_file_argbuf
.truncate (0);
2061 fatal_error (input_location
, "could not open temporary response file %s",
2064 status
= writeargv (argv
, f
);
2067 fatal_error (input_location
,
2068 "could not write to temporary response file %s",
2071 status
= fclose (f
);
2074 fatal_error (input_location
, "could not close temporary response file %s",
2077 store_arg (at_argument
, 0, 0);
2079 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
2082 /* Load specs from a file name named FILENAME, replacing occurrences of
2083 various different types of line-endings, \r\n, \n\r and just \r, with
2087 load_specs (const char *filename
)
2091 struct stat statbuf
;
2098 fnotice (stderr
, "Reading specs from %s\n", filename
);
2100 /* Open and stat the file. */
2101 desc
= open (filename
, O_RDONLY
, 0);
2105 /* This leaves DESC open, but the OS will save us. */
2106 fatal_error (input_location
, "cannot read spec file %qs: %m", filename
);
2109 if (stat (filename
, &statbuf
) < 0)
2112 /* Read contents of file into BUFFER. */
2113 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2114 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2117 buffer
[readlen
] = 0;
2120 specs
= XNEWVEC (char, readlen
+ 1);
2122 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2128 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2130 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2144 /* Read compilation specs from a file named FILENAME,
2145 replacing the default ones.
2147 A suffix which starts with `*' is a definition for
2148 one of the machine-specific sub-specs. The "suffix" should be
2149 *asm, *cc1, *cpp, *link, *startfile, etc.
2150 The corresponding spec is stored in asm_spec, etc.,
2151 rather than in the `compilers' vector.
2153 Anything invalid in the file is a fatal error. */
2156 read_specs (const char *filename
, bool main_p
, bool user_p
)
2161 buffer
= load_specs (filename
);
2163 /* Scan BUFFER for specs, putting them in the vector. */
2169 char *in
, *out
, *p1
, *p2
, *p3
;
2171 /* Advance P in BUFFER to the next nonblank nocomment line. */
2172 p
= skip_whitespace (p
);
2176 /* Is this a special command that starts with '%'? */
2177 /* Don't allow this for the main specs file, since it would
2178 encourage people to overwrite it. */
2179 if (*p
== '%' && !main_p
)
2182 while (*p
&& *p
!= '\n')
2188 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2189 && (p1
[sizeof "%include" - 1] == ' '
2190 || p1
[sizeof "%include" - 1] == '\t'))
2194 p1
+= sizeof ("%include");
2195 while (*p1
== ' ' || *p1
== '\t')
2198 if (*p1
++ != '<' || p
[-2] != '>')
2199 fatal_error (input_location
,
2200 "specs %%include syntax malformed after "
2202 (long) (p1
- buffer
+ 1));
2205 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2206 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
2209 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2210 && (p1
[sizeof "%include_noerr" - 1] == ' '
2211 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2215 p1
+= sizeof "%include_noerr";
2216 while (*p1
== ' ' || *p1
== '\t')
2219 if (*p1
++ != '<' || p
[-2] != '>')
2220 fatal_error (input_location
,
2221 "specs %%include syntax malformed after "
2223 (long) (p1
- buffer
+ 1));
2226 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2228 read_specs (new_filename
, false, user_p
);
2229 else if (verbose_flag
)
2230 fnotice (stderr
, "could not find specs file %s\n", p1
);
2233 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2234 && (p1
[sizeof "%rename" - 1] == ' '
2235 || p1
[sizeof "%rename" - 1] == '\t'))
2238 struct spec_list
*sl
;
2239 struct spec_list
*newsl
;
2241 /* Get original name. */
2242 p1
+= sizeof "%rename";
2243 while (*p1
== ' ' || *p1
== '\t')
2246 if (! ISALPHA ((unsigned char) *p1
))
2247 fatal_error (input_location
,
2248 "specs %%rename syntax malformed after "
2250 (long) (p1
- buffer
));
2253 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2256 if (*p2
!= ' ' && *p2
!= '\t')
2257 fatal_error (input_location
,
2258 "specs %%rename syntax malformed after "
2260 (long) (p2
- buffer
));
2264 while (*p2
== ' ' || *p2
== '\t')
2267 if (! ISALPHA ((unsigned char) *p2
))
2268 fatal_error (input_location
,
2269 "specs %%rename syntax malformed after "
2271 (long) (p2
- buffer
));
2273 /* Get new spec name. */
2275 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2279 fatal_error (input_location
,
2280 "specs %%rename syntax malformed after "
2282 (long) (p3
- buffer
));
2285 for (sl
= specs
; sl
; sl
= sl
->next
)
2286 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2290 fatal_error (input_location
,
2291 "specs %s spec was not found to be renamed", p1
);
2293 if (strcmp (p1
, p2
) == 0)
2296 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2297 if (strcmp (newsl
->name
, p2
) == 0)
2298 fatal_error (input_location
,
2299 "%s: attempt to rename spec %qs to "
2300 "already defined spec %qs",
2305 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
2307 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2311 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2313 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2315 *(sl
->ptr_spec
) = "";
2320 fatal_error (input_location
,
2321 "specs unknown %% command after %ld characters",
2322 (long) (p1
- buffer
));
2325 /* Find the colon that should end the suffix. */
2327 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2330 /* The colon shouldn't be missing. */
2332 fatal_error (input_location
,
2333 "specs file malformed after %ld characters",
2334 (long) (p1
- buffer
));
2336 /* Skip back over trailing whitespace. */
2338 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2341 /* Copy the suffix to a string. */
2342 suffix
= save_string (p
, p2
- p
);
2343 /* Find the next line. */
2344 p
= skip_whitespace (p1
+ 1);
2346 fatal_error (input_location
,
2347 "specs file malformed after %ld characters",
2348 (long) (p
- buffer
));
2351 /* Find next blank line or end of string. */
2352 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2355 /* Specs end at the blank line and do not include the newline. */
2356 spec
= save_string (p
, p1
- p
);
2359 /* Delete backslash-newline sequences from the spec. */
2364 if (in
[0] == '\\' && in
[1] == '\n')
2366 else if (in
[0] == '#')
2367 while (*in
&& *in
!= '\n')
2375 if (suffix
[0] == '*')
2377 if (! strcmp (suffix
, "*link_command"))
2378 link_command_spec
= spec
;
2381 set_spec (suffix
+ 1, spec
, user_p
);
2387 /* Add this pair to the vector. */
2389 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2391 compilers
[n_compilers
].suffix
= suffix
;
2392 compilers
[n_compilers
].spec
= spec
;
2394 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2398 link_command_spec
= spec
;
2401 if (link_command_spec
== 0)
2402 fatal_error (input_location
, "spec file has no spec for linking");
2404 XDELETEVEC (buffer
);
2407 /* Record the names of temporary files we tell compilers to write,
2408 and delete them at the end of the run. */
2410 /* This is the common prefix we use to make temp file names.
2411 It is chosen once for each run of this program.
2412 It is substituted into a spec by %g or %j.
2413 Thus, all temp file names contain this prefix.
2414 In practice, all temp file names start with this prefix.
2416 This prefix comes from the envvar TMPDIR if it is defined;
2417 otherwise, from the P_tmpdir macro if that is defined;
2418 otherwise, in /usr/tmp or /tmp;
2419 or finally the current directory if all else fails. */
2421 static const char *temp_filename
;
2423 /* Length of the prefix. */
2425 static int temp_filename_length
;
2427 /* Define the list of temporary files to delete. */
2432 struct temp_file
*next
;
2435 /* Queue of files to delete on success or failure of compilation. */
2436 static struct temp_file
*always_delete_queue
;
2437 /* Queue of files to delete on failure of compilation. */
2438 static struct temp_file
*failure_delete_queue
;
2440 /* Record FILENAME as a file to be deleted automatically.
2441 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2442 otherwise delete it in any case.
2443 FAIL_DELETE nonzero means delete it if a compilation step fails;
2444 otherwise delete it in any case. */
2447 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2449 char *const name
= xstrdup (filename
);
2453 struct temp_file
*temp
;
2454 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2455 if (! filename_cmp (name
, temp
->name
))
2461 temp
= XNEW (struct temp_file
);
2462 temp
->next
= always_delete_queue
;
2464 always_delete_queue
= temp
;
2471 struct temp_file
*temp
;
2472 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2473 if (! filename_cmp (name
, temp
->name
))
2479 temp
= XNEW (struct temp_file
);
2480 temp
->next
= failure_delete_queue
;
2482 failure_delete_queue
= temp
;
2488 /* Delete all the temporary files whose names we previously recorded. */
2490 #ifndef DELETE_IF_ORDINARY
2491 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2494 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2495 if (unlink (NAME) < 0) \
2497 error ("%s: %m", (NAME)); \
2502 delete_if_ordinary (const char *name
)
2508 printf ("Delete %s? (y or n) ", name
);
2512 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2515 if (i
== 'y' || i
== 'Y')
2517 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2521 delete_temp_files (void)
2523 struct temp_file
*temp
;
2525 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2526 delete_if_ordinary (temp
->name
);
2527 always_delete_queue
= 0;
2530 /* Delete all the files to be deleted on error. */
2533 delete_failure_queue (void)
2535 struct temp_file
*temp
;
2537 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2538 delete_if_ordinary (temp
->name
);
2542 clear_failure_queue (void)
2544 failure_delete_queue
= 0;
2547 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2549 If DO_MULTI is true iterate over the paths twice, first with multilib
2550 suffix then without, otherwise iterate over the paths once without
2551 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2552 to avoid visiting the same path twice, but we could do better. For
2553 instance, /usr/lib/../lib is considered different from /usr/lib.
2554 At least EXTRA_SPACE chars past the end of the path passed to
2555 CALLBACK are available for use by the callback.
2556 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2558 Returns the value returned by CALLBACK. */
2561 for_each_path (const struct path_prefix
*paths
,
2564 void *(*callback
) (char *, void *),
2565 void *callback_info
)
2567 struct prefix_list
*pl
;
2568 const char *multi_dir
= NULL
;
2569 const char *multi_os_dir
= NULL
;
2570 const char *multiarch_suffix
= NULL
;
2571 const char *multi_suffix
;
2572 const char *just_multi_suffix
;
2575 bool skip_multi_dir
= false;
2576 bool skip_multi_os_dir
= false;
2578 multi_suffix
= machine_suffix
;
2579 just_multi_suffix
= just_machine_suffix
;
2580 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2582 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2583 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2584 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2586 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2587 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2589 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2593 size_t multi_dir_len
= 0;
2594 size_t multi_os_dir_len
= 0;
2595 size_t multiarch_len
= 0;
2597 size_t just_suffix_len
;
2601 multi_dir_len
= strlen (multi_dir
);
2603 multi_os_dir_len
= strlen (multi_os_dir
);
2604 if (multiarch_suffix
)
2605 multiarch_len
= strlen (multiarch_suffix
);
2606 suffix_len
= strlen (multi_suffix
);
2607 just_suffix_len
= strlen (just_multi_suffix
);
2611 len
= paths
->max_len
+ extra_space
+ 1;
2612 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2613 path
= XNEWVEC (char, len
);
2616 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2618 len
= strlen (pl
->prefix
);
2619 memcpy (path
, pl
->prefix
, len
);
2621 /* Look first in MACHINE/VERSION subdirectory. */
2622 if (!skip_multi_dir
)
2624 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2625 ret
= callback (path
, callback_info
);
2630 /* Some paths are tried with just the machine (ie. target)
2631 subdir. This is used for finding as, ld, etc. */
2633 && pl
->require_machine_suffix
== 2)
2635 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2636 ret
= callback (path
, callback_info
);
2641 /* Now try the multiarch path. */
2643 && !pl
->require_machine_suffix
&& multiarch_dir
)
2645 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2646 ret
= callback (path
, callback_info
);
2651 /* Now try the base path. */
2652 if (!pl
->require_machine_suffix
2653 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2655 const char *this_multi
;
2656 size_t this_multi_len
;
2658 if (pl
->os_multilib
)
2660 this_multi
= multi_os_dir
;
2661 this_multi_len
= multi_os_dir_len
;
2665 this_multi
= multi_dir
;
2666 this_multi_len
= multi_dir_len
;
2670 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2674 ret
= callback (path
, callback_info
);
2682 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2685 /* Run through the paths again, this time without multilibs.
2686 Don't repeat any we have already seen. */
2689 free (CONST_CAST (char *, multi_dir
));
2691 free (CONST_CAST (char *, multi_suffix
));
2692 multi_suffix
= machine_suffix
;
2693 free (CONST_CAST (char *, just_multi_suffix
));
2694 just_multi_suffix
= just_machine_suffix
;
2697 skip_multi_dir
= true;
2700 free (CONST_CAST (char *, multi_os_dir
));
2701 multi_os_dir
= NULL
;
2704 skip_multi_os_dir
= true;
2709 free (CONST_CAST (char *, multi_dir
));
2710 free (CONST_CAST (char *, multi_suffix
));
2711 free (CONST_CAST (char *, just_multi_suffix
));
2714 free (CONST_CAST (char *, multi_os_dir
));
2720 /* Callback for build_search_list. Adds path to obstack being built. */
2722 struct add_to_obstack_info
{
2729 add_to_obstack (char *path
, void *data
)
2731 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2733 if (info
->check_dir
&& !is_directory (path
, false))
2736 if (!info
->first_time
)
2737 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2739 obstack_grow (info
->ob
, path
, strlen (path
));
2741 info
->first_time
= false;
2745 /* Add or change the value of an environment variable, outputting the
2746 change to standard error if in verbose mode. */
2748 xputenv (const char *string
)
2753 /* Build a list of search directories from PATHS.
2754 PREFIX is a string to prepend to the list.
2755 If CHECK_DIR_P is true we ensure the directory exists.
2756 If DO_MULTI is true, multilib paths are output first, then
2758 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2759 It is also used by the --print-search-dirs flag. */
2762 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2763 bool check_dir
, bool do_multi
)
2765 struct add_to_obstack_info info
;
2767 info
.ob
= &collect_obstack
;
2768 info
.check_dir
= check_dir
;
2769 info
.first_time
= true;
2771 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2772 obstack_1grow (&collect_obstack
, '=');
2774 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2776 obstack_1grow (&collect_obstack
, '\0');
2777 return XOBFINISH (&collect_obstack
, char *);
2780 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2784 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2787 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2790 /* Check whether NAME can be accessed in MODE. This is like access,
2791 except that it never considers directories to be executable. */
2794 access_check (const char *name
, int mode
)
2800 if (stat (name
, &st
) < 0
2801 || S_ISDIR (st
.st_mode
))
2805 return access (name
, mode
);
2808 /* Callback for find_a_file. Appends the file name to the directory
2809 path. If the resulting file exists in the right mode, return the
2810 full pathname to the file. */
2812 struct file_at_path_info
{
2821 file_at_path (char *path
, void *data
)
2823 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2824 size_t len
= strlen (path
);
2826 memcpy (path
+ len
, info
->name
, info
->name_len
);
2827 len
+= info
->name_len
;
2829 /* Some systems have a suffix for executable files.
2830 So try appending that first. */
2831 if (info
->suffix_len
)
2833 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2834 if (access_check (path
, info
->mode
) == 0)
2839 if (access_check (path
, info
->mode
) == 0)
2845 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2846 access to check permissions. If DO_MULTI is true, search multilib
2847 paths then non-multilib paths, otherwise do not search multilib paths.
2848 Return 0 if not found, otherwise return its name, allocated with malloc. */
2851 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2854 struct file_at_path_info info
;
2856 #ifdef DEFAULT_ASSEMBLER
2857 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2858 return xstrdup (DEFAULT_ASSEMBLER
);
2861 #ifdef DEFAULT_LINKER
2862 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2863 return xstrdup (DEFAULT_LINKER
);
2866 /* Determine the filename to execute (special case for absolute paths). */
2868 if (IS_ABSOLUTE_PATH (name
))
2870 if (access (name
, mode
) == 0)
2871 return xstrdup (name
);
2877 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2878 info
.name_len
= strlen (info
.name
);
2879 info
.suffix_len
= strlen (info
.suffix
);
2882 return (char*) for_each_path (pprefix
, do_multi
,
2883 info
.name_len
+ info
.suffix_len
,
2884 file_at_path
, &info
);
2887 /* Ranking of prefixes in the sort list. -B prefixes are put before
2890 enum path_prefix_priority
2892 PREFIX_PRIORITY_B_OPT
,
2893 PREFIX_PRIORITY_LAST
2896 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2897 order according to PRIORITY. Within each PRIORITY, new entries are
2900 If WARN is nonzero, we will warn if no file is found
2901 through this prefix. WARN should point to an int
2902 which will be set to 1 if this entry is used.
2904 COMPONENT is the value to be passed to update_path.
2906 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2907 the complete value of machine_suffix.
2908 2 means try both machine_suffix and just_machine_suffix. */
2911 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2912 const char *component
, /* enum prefix_priority */ int priority
,
2913 int require_machine_suffix
, int os_multilib
)
2915 struct prefix_list
*pl
, **prev
;
2918 for (prev
= &pprefix
->plist
;
2919 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2920 prev
= &(*prev
)->next
)
2923 /* Keep track of the longest prefix. */
2925 prefix
= update_path (prefix
, component
);
2926 len
= strlen (prefix
);
2927 if (len
> pprefix
->max_len
)
2928 pprefix
->max_len
= len
;
2930 pl
= XNEW (struct prefix_list
);
2931 pl
->prefix
= prefix
;
2932 pl
->require_machine_suffix
= require_machine_suffix
;
2933 pl
->priority
= priority
;
2934 pl
->os_multilib
= os_multilib
;
2936 /* Insert after PREV. */
2941 /* Same as add_prefix, but prepending target_system_root to prefix. */
2942 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2944 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2945 const char *component
,
2946 /* enum prefix_priority */ int priority
,
2947 int require_machine_suffix
, int os_multilib
)
2949 if (!IS_ABSOLUTE_PATH (prefix
))
2950 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
2952 if (target_system_root
)
2954 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2955 size_t sysroot_len
= strlen (target_system_root
);
2958 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2959 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2961 if (target_sysroot_suffix
)
2962 prefix
= concat (sysroot_no_trailing_dir_separator
,
2963 target_sysroot_suffix
, prefix
, NULL
);
2965 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2967 free (sysroot_no_trailing_dir_separator
);
2969 /* We have to override this because GCC's notion of sysroot
2970 moves along with GCC. */
2974 add_prefix (pprefix
, prefix
, component
, priority
,
2975 require_machine_suffix
, os_multilib
);
2978 /* Execute the command specified by the arguments on the current line of spec.
2979 When using pipes, this includes several piped-together commands
2980 with `|' between them.
2982 Return 0 if successful, -1 if failed. */
2988 int n_commands
; /* # of command. */
2990 struct pex_obj
*pex
;
2993 const char *prog
; /* program name. */
2994 const char **argv
; /* vector of args. */
2998 struct command
*commands
; /* each command buffer with above info. */
3000 gcc_assert (!processing_spec_function
);
3004 string
= find_a_file (&exec_prefixes
,
3005 argbuf
[0], X_OK
, false);
3008 insert_wrapper (wrapper_string
);
3011 /* Count # of piped commands. */
3012 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
3013 if (strcmp (arg
, "|") == 0)
3016 /* Get storage for each command. */
3017 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
3019 /* Split argbuf into its separate piped processes,
3020 and record info about each one.
3021 Also search for the programs that are to be run. */
3023 argbuf
.safe_push (0);
3025 commands
[0].prog
= argbuf
[0]; /* first command. */
3026 commands
[0].argv
= argbuf
.address ();
3028 if (!wrapper_string
)
3030 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
3031 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
3034 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
3035 if (arg
&& strcmp (arg
, "|") == 0)
3036 { /* each command. */
3037 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
3038 fatal_error (input_location
, "-pipe not supported");
3040 argbuf
[i
] = 0; /* Termination of
3042 commands
[n_commands
].prog
= argbuf
[i
+ 1];
3043 commands
[n_commands
].argv
3044 = &(argbuf
.address ())[i
+ 1];
3045 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
3048 commands
[n_commands
].argv
[0] = string
;
3052 /* If -v, print what we are about to do, and maybe query. */
3056 /* For help listings, put a blank line between sub-processes. */
3057 if (print_help_list
)
3058 fputc ('\n', stderr
);
3060 /* Print each piped command as a separate line. */
3061 for (i
= 0; i
< n_commands
; i
++)
3063 const char *const *j
;
3065 if (verbose_only_flag
)
3067 for (j
= commands
[i
].argv
; *j
; j
++)
3070 for (p
= *j
; *p
; ++p
)
3071 if (!ISALNUM ((unsigned char) *p
)
3072 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
3076 fprintf (stderr
, " \"");
3077 for (p
= *j
; *p
; ++p
)
3079 if (*p
== '"' || *p
== '\\' || *p
== '$')
3080 fputc ('\\', stderr
);
3083 fputc ('"', stderr
);
3085 /* If it's empty, print "". */
3087 fprintf (stderr
, " \"\"");
3089 fprintf (stderr
, " %s", *j
);
3093 for (j
= commands
[i
].argv
; *j
; j
++)
3094 /* If it's empty, print "". */
3096 fprintf (stderr
, " \"\"");
3098 fprintf (stderr
, " %s", *j
);
3100 /* Print a pipe symbol after all but the last command. */
3101 if (i
+ 1 != n_commands
)
3102 fprintf (stderr
, " |");
3103 fprintf (stderr
, "\n");
3106 if (verbose_only_flag
!= 0)
3108 /* verbose_only_flag should act as if the spec was
3109 executed, so increment execution_count before
3110 returning. This prevents spurious warnings about
3111 unused linker input files, etc. */
3116 fnotice (stderr
, "\nGo ahead? (y or n) ");
3120 while (getchar () != '\n')
3123 if (i
!= 'y' && i
!= 'Y')
3128 #ifdef ENABLE_VALGRIND_CHECKING
3129 /* Run the each command through valgrind. To simplify prepending the
3130 path to valgrind and the option "-q" (for quiet operation unless
3131 something triggers), we allocate a separate argv array. */
3133 for (i
= 0; i
< n_commands
; i
++)
3139 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3142 argv
= XALLOCAVEC (const char *, argc
+ 3);
3144 argv
[0] = VALGRIND_PATH
;
3146 for (j
= 2; j
< argc
+ 2; j
++)
3147 argv
[j
] = commands
[i
].argv
[j
- 2];
3150 commands
[i
].argv
= argv
;
3151 commands
[i
].prog
= argv
[0];
3155 /* Run each piped subprocess. */
3157 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3158 ? PEX_RECORD_TIMES
: 0),
3159 progname
, temp_filename
);
3161 fatal_error (input_location
, "pex_init failed: %m");
3163 for (i
= 0; i
< n_commands
; i
++)
3167 const char *string
= commands
[i
].argv
[0];
3169 errmsg
= pex_run (pex
,
3170 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3171 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3172 string
, CONST_CAST (char **, commands
[i
].argv
),
3177 fatal_error (input_location
,
3178 err
? G_("cannot execute %qs: %s: %m")
3179 : G_("cannot execute %qs: %s"),
3183 if (i
&& string
!= commands
[i
].prog
)
3184 free (CONST_CAST (char *, string
));
3189 /* Wait for all the subprocesses to finish. */
3193 struct pex_time
*times
= NULL
;
3196 statuses
= (int *) alloca (n_commands
* sizeof (int));
3197 if (!pex_get_status (pex
, n_commands
, statuses
))
3198 fatal_error (input_location
, "failed to get exit status: %m");
3200 if (report_times
|| report_times_to_file
)
3202 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3203 if (!pex_get_times (pex
, n_commands
, times
))
3204 fatal_error (input_location
, "failed to get process times: %m");
3209 for (i
= 0; i
< n_commands
; ++i
)
3211 int status
= statuses
[i
];
3213 if (WIFSIGNALED (status
))
3214 switch (WTERMSIG (status
))
3218 /* SIGQUIT and SIGKILL are not available on MinGW. */
3225 /* The user (or environment) did something to the
3226 inferior. Making this an ICE confuses the user into
3227 thinking there's a compiler bug. Much more likely is
3228 the user or OOM killer nuked it. */
3229 fatal_error (input_location
,
3230 "%s signal terminated program %s",
3231 strsignal (WTERMSIG (status
)),
3237 /* SIGPIPE is a special case. It happens in -pipe mode
3238 when the compiler dies before the preprocessor is
3239 done, or the assembler dies before the compiler is
3240 done. There's generally been an error already, and
3241 this is just fallout. So don't generate another
3242 error unless we would otherwise have succeeded. */
3243 if (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
)
3253 /* The inferior failed to catch the signal. */
3254 internal_error_no_backtrace ("%s signal terminated program %s",
3255 strsignal (WTERMSIG (status
)),
3258 else if (WIFEXITED (status
)
3259 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3261 /* For ICEs in cc1, cc1obj, cc1plus see if it is
3262 reproducible or not. */
3265 && WEXITSTATUS (status
) == ICE_EXIT_CODE
3267 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
3268 && ! strncmp (p
+ 1, "cc1", 3))
3269 try_generate_repro (commands
[0].argv
);
3270 if (WEXITSTATUS (status
) > greatest_status
)
3271 greatest_status
= WEXITSTATUS (status
);
3275 if (report_times
|| report_times_to_file
)
3277 struct pex_time
*pt
= ×
[i
];
3280 ut
= ((double) pt
->user_seconds
3281 + (double) pt
->user_microseconds
/ 1.0e6
);
3282 st
= ((double) pt
->system_seconds
3283 + (double) pt
->system_microseconds
/ 1.0e6
);
3288 fnotice (stderr
, "# %s %.2f %.2f\n",
3289 commands
[i
].prog
, ut
, st
);
3291 if (report_times_to_file
)
3294 const char *const *j
;
3296 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3298 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3301 for (p
= *j
; *p
; ++p
)
3302 if (*p
== '"' || *p
== '\\' || *p
== '$'
3308 fprintf (report_times_to_file
, " \"");
3309 for (p
= *j
; *p
; ++p
)
3311 if (*p
== '"' || *p
== '\\' || *p
== '$')
3312 fputc ('\\', report_times_to_file
);
3313 fputc (*p
, report_times_to_file
);
3315 fputc ('"', report_times_to_file
);
3318 fprintf (report_times_to_file
, " %s", *j
);
3321 fputc ('\n', report_times_to_file
);
3327 if (commands
[0].argv
[0] != commands
[0].prog
)
3328 free (CONST_CAST (char *, commands
[0].argv
[0]));
3334 /* Find all the switches given to us
3335 and make a vector describing them.
3336 The elements of the vector are strings, one per switch given.
3337 If a switch uses following arguments, then the `part1' field
3338 is the switch itself and the `args' field
3339 is a null-terminated vector containing the following arguments.
3340 Bits in the `live_cond' field are:
3341 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3342 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3343 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3344 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored.
3345 SWITCH_KEEP_FOR_GCC to indicate that this switch, otherwise ignored,
3346 should be included in COLLECT_GCC_OPTIONS.
3347 in all do_spec calls afterwards. Used for %<S from self specs.
3348 The `known' field describes whether this is an internal switch.
3349 The `validated' field describes whether any spec has looked at this switch;
3350 if it remains false at the end of the run, the switch must be meaningless.
3351 The `ordering' field is used to temporarily mark switches that have to be
3352 kept in a specific order. */
3354 #define SWITCH_LIVE (1 << 0)
3355 #define SWITCH_FALSE (1 << 1)
3356 #define SWITCH_IGNORE (1 << 2)
3357 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
3358 #define SWITCH_KEEP_FOR_GCC (1 << 4)
3364 unsigned int live_cond
;
3370 static struct switchstr
*switches
;
3372 static int n_switches
;
3374 static int n_switches_alloc
;
3376 /* Set to zero if -fcompare-debug is disabled, positive if it's
3377 enabled and we're running the first compilation, negative if it's
3378 enabled and we're running the second compilation. For most of the
3379 time, it's in the range -1..1, but it can be temporarily set to 2
3380 or 3 to indicate that the -fcompare-debug flags didn't come from
3381 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3382 variable, until a synthesized -fcompare-debug flag is added to the
3386 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3387 int compare_debug_second
;
3389 /* Set to the flags that should be passed to the second compilation in
3390 a -fcompare-debug compilation. */
3391 const char *compare_debug_opt
;
3393 static struct switchstr
*switches_debug_check
[2];
3395 static int n_switches_debug_check
[2];
3397 static int n_switches_alloc_debug_check
[2];
3399 static char *debug_check_temp_file
[2];
3401 /* Language is one of three things:
3403 1) The name of a real programming language.
3404 2) NULL, indicating that no one has figured out
3406 3) '*', indicating that the file should be passed
3411 const char *language
;
3412 struct compiler
*incompiler
;
3417 /* Also a vector of input files specified. */
3419 static struct infile
*infiles
;
3423 static int n_infiles_alloc
;
3425 /* True if undefined environment variables encountered during spec processing
3426 are ok to ignore, typically when we're running for --help or --version. */
3428 static bool spec_undefvar_allowed
;
3430 /* True if multiple input files are being compiled to a single
3433 static bool combine_inputs
;
3435 /* This counts the number of libraries added by lang_specific_driver, so that
3436 we can tell if there were any user supplied any files or libraries. */
3438 static int added_libraries
;
3440 /* And a vector of corresponding output files is made up later. */
3442 const char **outfiles
;
3444 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3446 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3447 is true if we should look for an executable suffix. DO_OBJ
3448 is true if we should look for an object suffix. */
3451 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3452 int do_obj ATTRIBUTE_UNUSED
)
3454 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3462 len
= strlen (name
);
3464 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3465 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3466 if (do_obj
&& len
> 2
3467 && name
[len
- 2] == '.'
3468 && name
[len
- 1] == 'o')
3470 obstack_grow (&obstack
, name
, len
- 2);
3471 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3472 name
= XOBFINISH (&obstack
, const char *);
3476 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3477 /* If there is no filetype, make it the executable suffix (which includes
3478 the "."). But don't get confused if we have just "-o". */
3479 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3482 for (i
= len
- 1; i
>= 0; i
--)
3483 if (IS_DIR_SEPARATOR (name
[i
]))
3486 for (i
++; i
< len
; i
++)
3490 obstack_grow (&obstack
, name
, len
);
3491 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3492 strlen (TARGET_EXECUTABLE_SUFFIX
));
3493 name
= XOBFINISH (&obstack
, const char *);
3500 /* Display the command line switches accepted by gcc. */
3504 printf (_("Usage: %s [options] file...\n"), progname
);
3505 fputs (_("Options:\n"), stdout
);
3507 fputs (_(" -pass-exit-codes Exit with highest error code from a phase.\n"), stdout
);
3508 fputs (_(" --help Display this information.\n"), stdout
);
3509 fputs (_(" --target-help Display target specific command line options.\n"), stdout
);
3510 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...].\n"), stdout
);
3511 fputs (_(" Display specific types of command line options.\n"), stdout
);
3513 fputs (_(" (Use '-v --help' to display command line options of sub-processes).\n"), stdout
);
3514 fputs (_(" --version Display compiler version information.\n"), stdout
);
3515 fputs (_(" -dumpspecs Display all of the built in spec strings.\n"), stdout
);
3516 fputs (_(" -dumpversion Display the version of the compiler.\n"), stdout
);
3517 fputs (_(" -dumpmachine Display the compiler's target processor.\n"), stdout
);
3518 fputs (_(" -print-search-dirs Display the directories in the compiler's search path.\n"), stdout
);
3519 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library.\n"), stdout
);
3520 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>.\n"), stdout
);
3521 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>.\n"), stdout
);
3523 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3524 a component in the library path.\n"), stdout
);
3525 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc.\n"), stdout
);
3527 -print-multi-lib Display the mapping between command line options and\n\
3528 multiple library search directories.\n"), stdout
);
3529 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries.\n"), stdout
);
3530 fputs (_(" -print-sysroot Display the target libraries directory.\n"), stdout
);
3531 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers.\n"), stdout
);
3532 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler.\n"), stdout
);
3533 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor.\n"), stdout
);
3534 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker.\n"), stdout
);
3535 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler.\n"), stdout
);
3536 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor.\n"), stdout
);
3537 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker.\n"), stdout
);
3538 fputs (_(" -save-temps Do not delete intermediate files.\n"), stdout
);
3539 fputs (_(" -save-temps=<arg> Do not delete intermediate files.\n"), stdout
);
3541 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3542 prefixes to other gcc components.\n"), stdout
);
3543 fputs (_(" -pipe Use pipes rather than intermediate files.\n"), stdout
);
3544 fputs (_(" -time Time the execution of each subprocess.\n"), stdout
);
3545 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>.\n"), stdout
);
3546 fputs (_(" -std=<standard> Assume that the input sources are for <standard>.\n"), stdout
);
3548 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3549 and libraries.\n"), stdout
);
3550 fputs (_(" -B <directory> Add <directory> to the compiler's search paths.\n"), stdout
);
3551 fputs (_(" -v Display the programs invoked by the compiler.\n"), stdout
);
3552 fputs (_(" -### Like -v but options quoted and commands not executed.\n"), stdout
);
3553 fputs (_(" -E Preprocess only; do not compile, assemble or link.\n"), stdout
);
3554 fputs (_(" -S Compile only; do not assemble or link.\n"), stdout
);
3555 fputs (_(" -c Compile and assemble, but do not link.\n"), stdout
);
3556 fputs (_(" -o <file> Place the output into <file>.\n"), stdout
);
3557 fputs (_(" -pie Create a dynamically linked position independent\n\
3558 executable.\n"), stdout
);
3559 fputs (_(" -shared Create a shared library.\n"), stdout
);
3561 -x <language> Specify the language of the following input files.\n\
3562 Permissible languages include: c c++ assembler none\n\
3563 'none' means revert to the default behavior of\n\
3564 guessing the language based on the file's extension.\n\
3568 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3569 passed on to the various sub-processes invoked by %s. In order to pass\n\
3570 other options on to these processes the -W<letter> options must be used.\n\
3573 /* The rest of the options are displayed by invocations of the various
3578 add_preprocessor_option (const char *option
, int len
)
3580 preprocessor_options
.safe_push (save_string (option
, len
));
3584 add_assembler_option (const char *option
, int len
)
3586 assembler_options
.safe_push (save_string (option
, len
));
3590 add_linker_option (const char *option
, int len
)
3592 linker_options
.safe_push (save_string (option
, len
));
3595 /* Allocate space for an input file in infiles. */
3600 if (n_infiles_alloc
== 0)
3602 n_infiles_alloc
= 16;
3603 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3605 else if (n_infiles_alloc
== n_infiles
)
3607 n_infiles_alloc
*= 2;
3608 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3612 /* Store an input file with the given NAME and LANGUAGE in
3616 add_infile (const char *name
, const char *language
)
3619 infiles
[n_infiles
].name
= name
;
3620 infiles
[n_infiles
++].language
= language
;
3623 /* Allocate space for a switch in switches. */
3628 if (n_switches_alloc
== 0)
3630 n_switches_alloc
= 16;
3631 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3633 else if (n_switches_alloc
== n_switches
)
3635 n_switches_alloc
*= 2;
3636 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3640 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3641 as validated if VALIDATED and KNOWN if it is an internal switch. */
3644 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3645 bool validated
, bool known
)
3648 switches
[n_switches
].part1
= opt
+ 1;
3650 switches
[n_switches
].args
= 0;
3653 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3654 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3655 switches
[n_switches
].args
[n_args
] = NULL
;
3658 switches
[n_switches
].live_cond
= 0;
3659 switches
[n_switches
].validated
= validated
;
3660 switches
[n_switches
].known
= known
;
3661 switches
[n_switches
].ordering
= 0;
3665 /* Set the SOURCE_DATE_EPOCH environment variable to the current time if it is
3669 set_source_date_epoch_envvar ()
3671 /* Array size is 21 = ceil(log_10(2^64)) + 1 to hold string representations
3672 of 64 bit integers. */
3673 char source_date_epoch
[21];
3678 if (tt
< (time_t) 0 || errno
!= 0)
3681 snprintf (source_date_epoch
, 21, "%llu", (unsigned long long) tt
);
3682 /* Using setenv instead of xputenv because we want the variable to remain
3683 after finalizing so that it's still set in the second run when using
3685 setenv ("SOURCE_DATE_EPOCH", source_date_epoch
, 0);
3688 /* Handle an option DECODED that is unknown to the option-processing
3692 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3694 const char *opt
= decoded
->arg
;
3695 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3696 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3698 /* Leave unknown -Wno-* options for the compiler proper, to be
3699 diagnosed only if there are warnings. */
3700 save_switch (decoded
->canonical_option
[0],
3701 decoded
->canonical_option_num_elements
- 1,
3702 &decoded
->canonical_option
[1], false, true);
3705 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3707 /* Give it a chance to define it a spec file. */
3708 save_switch (decoded
->canonical_option
[0],
3709 decoded
->canonical_option_num_elements
- 1,
3710 &decoded
->canonical_option
[1], false, false);
3717 /* Handle an option DECODED that is not marked as CL_DRIVER.
3718 LANG_MASK will always be CL_DRIVER. */
3721 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3722 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3724 /* At this point, non-driver options are accepted (and expected to
3725 be passed down by specs) unless marked to be rejected by the
3726 driver. Options to be rejected by the driver but accepted by the
3727 compilers proper are treated just like completely unknown
3729 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3731 if (option
->cl_reject_driver
)
3732 error ("unrecognized command line option %qs",
3733 decoded
->orig_option_with_args_text
);
3735 save_switch (decoded
->canonical_option
[0],
3736 decoded
->canonical_option_num_elements
- 1,
3737 &decoded
->canonical_option
[1], false, true);
3740 static const char *spec_lang
= 0;
3741 static int last_language_n_infiles
;
3743 /* Parse -foffload option argument. */
3746 handle_foffload_option (const char *arg
)
3748 const char *c
, *cur
, *n
, *next
, *end
;
3751 /* If option argument starts with '-' then no target is specified and we
3752 do not need to parse it. */
3756 end
= strchr (arg
, '=');
3758 end
= strchr (arg
, '\0');
3763 next
= strchr (cur
, ',');
3766 next
= (next
> end
) ? end
: next
;
3768 target
= XNEWVEC (char, next
- cur
+ 1);
3769 memcpy (target
, cur
, next
- cur
);
3770 target
[next
- cur
] = '\0';
3772 /* If 'disable' is passed to the option, stop parsing the option and clean
3773 the list of offload targets. */
3774 if (strcmp (target
, "disable") == 0)
3776 free (offload_targets
);
3777 offload_targets
= xstrdup ("");
3781 /* Check that GCC is configured to support the offload target. */
3782 c
= OFFLOAD_TARGETS
;
3785 n
= strchr (c
, ',');
3787 n
= strchr (c
, '\0');
3789 if (next
- cur
== n
- c
&& strncmp (target
, c
, n
- c
) == 0)
3792 c
= *n
? n
+ 1 : NULL
;
3796 fatal_error (input_location
,
3797 "GCC is not configured to support %s as offload target",
3800 if (!offload_targets
)
3802 offload_targets
= target
;
3807 /* Check that the target hasn't already presented in the list. */
3808 c
= offload_targets
;
3811 n
= strchr (c
, ':');
3813 n
= strchr (c
, '\0');
3815 if (next
- cur
== n
- c
&& strncmp (c
, target
, n
- c
) == 0)
3822 /* If duplicate is not found, append the target to the list. */
3825 size_t offload_targets_len
= strlen (offload_targets
);
3827 = XRESIZEVEC (char, offload_targets
,
3828 offload_targets_len
+ 1 + next
- cur
+ 1);
3829 offload_targets
[offload_targets_len
++] = ':';
3830 memcpy (offload_targets
+ offload_targets_len
, target
, next
- cur
+ 1);
3835 XDELETEVEC (target
);
3839 /* Handle a driver option; arguments and return value as for
3843 driver_handle_option (struct gcc_options
*opts
,
3844 struct gcc_options
*opts_set
,
3845 const struct cl_decoded_option
*decoded
,
3846 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3848 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3849 diagnostic_context
*dc
,
3852 size_t opt_index
= decoded
->opt_index
;
3853 const char *arg
= decoded
->arg
;
3854 const char *compare_debug_replacement_opt
;
3855 int value
= decoded
->value
;
3856 bool validated
= false;
3857 bool do_save
= true;
3859 gcc_assert (opts
== &global_options
);
3860 gcc_assert (opts_set
== &global_options_set
);
3861 gcc_assert (kind
== DK_UNSPECIFIED
);
3862 gcc_assert (loc
== UNKNOWN_LOCATION
);
3863 gcc_assert (dc
== global_dc
);
3869 struct spec_list
*sl
;
3871 for (sl
= specs
; sl
; sl
= sl
->next
)
3872 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3873 if (link_command_spec
)
3874 printf ("*link_command:\n%s\n\n", link_command_spec
);
3878 case OPT_dumpversion
:
3879 printf ("%s\n", spec_version
);
3882 case OPT_dumpmachine
:
3883 printf ("%s\n", spec_machine
);
3886 case OPT_dumpfullversion
:
3887 printf ("%s\n", BASEVER
);
3893 /* CPP driver cannot obtain switch from cc1_options. */
3895 add_preprocessor_option ("--version", strlen ("--version"));
3896 add_assembler_option ("--version", strlen ("--version"));
3897 add_linker_option ("--version", strlen ("--version"));
3900 case OPT__completion_
:
3902 completion
= decoded
->arg
;
3906 print_help_list
= 1;
3908 /* CPP driver cannot obtain switch from cc1_options. */
3910 add_preprocessor_option ("--help", 6);
3911 add_assembler_option ("--help", 6);
3912 add_linker_option ("--help", 6);
3916 print_subprocess_help
= 2;
3919 case OPT__target_help
:
3920 print_subprocess_help
= 1;
3922 /* CPP driver cannot obtain switch from cc1_options. */
3924 add_preprocessor_option ("--target-help", 13);
3925 add_assembler_option ("--target-help", 13);
3926 add_linker_option ("--target-help", 13);
3929 case OPT__no_sysroot_suffix
:
3930 case OPT_pass_exit_codes
:
3931 case OPT_print_search_dirs
:
3932 case OPT_print_file_name_
:
3933 case OPT_print_prog_name_
:
3934 case OPT_print_multi_lib
:
3935 case OPT_print_multi_directory
:
3936 case OPT_print_sysroot
:
3937 case OPT_print_multi_os_directory
:
3938 case OPT_print_multiarch
:
3939 case OPT_print_sysroot_headers_suffix
:
3942 /* These options set the variables specified in common.opt
3943 automatically, and do not need to be saved for spec
3948 case OPT_print_libgcc_file_name
:
3949 print_file_name
= "libgcc.a";
3953 case OPT_fuse_ld_bfd
:
3957 case OPT_fuse_ld_gold
:
3961 case OPT_fcompare_debug_second
:
3962 compare_debug_second
= 1;
3965 case OPT_fcompare_debug
:
3969 compare_debug_replacement_opt
= "-fcompare-debug=";
3971 goto compare_debug_with_arg
;
3974 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3976 goto compare_debug_with_arg
;
3983 case OPT_fcompare_debug_
:
3984 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3985 compare_debug_with_arg
:
3986 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3987 gcc_assert (arg
!= NULL
);
3992 if (compare_debug
< 0)
3993 compare_debug_opt
= NULL
;
3995 compare_debug_opt
= arg
;
3996 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
3997 set_source_date_epoch_envvar ();
4000 case OPT_fdiagnostics_color_
:
4001 diagnostic_color_init (dc
, value
);
4007 /* Pass the rest of this option to the assembler. */
4009 /* Split the argument at commas. */
4011 for (j
= 0; arg
[j
]; j
++)
4014 add_assembler_option (arg
+ prev
, j
- prev
);
4018 /* Record the part after the last comma. */
4019 add_assembler_option (arg
+ prev
, j
- prev
);
4027 /* Pass the rest of this option to the preprocessor. */
4029 /* Split the argument at commas. */
4031 for (j
= 0; arg
[j
]; j
++)
4034 add_preprocessor_option (arg
+ prev
, j
- prev
);
4038 /* Record the part after the last comma. */
4039 add_preprocessor_option (arg
+ prev
, j
- prev
);
4047 /* Split the argument at commas. */
4049 for (j
= 0; arg
[j
]; j
++)
4052 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
4055 /* Record the part after the last comma. */
4056 add_infile (arg
+ prev
, "*");
4062 add_infile (arg
, "*");
4066 case OPT_Xpreprocessor
:
4067 add_preprocessor_option (arg
, strlen (arg
));
4071 case OPT_Xassembler
:
4072 add_assembler_option (arg
, strlen (arg
));
4077 /* POSIX allows separation of -l and the lib arg; canonicalize
4078 by concatenating -l with its arg */
4079 add_infile (concat ("-l", arg
, NULL
), "*");
4084 /* Similarly, canonicalize -L for linkers that may not accept
4085 separate arguments. */
4086 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
4091 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
4094 case OPT_save_temps
:
4095 save_temps_flag
= SAVE_TEMPS_CWD
;
4099 case OPT_save_temps_
:
4100 if (strcmp (arg
, "cwd") == 0)
4101 save_temps_flag
= SAVE_TEMPS_CWD
;
4102 else if (strcmp (arg
, "obj") == 0
4103 || strcmp (arg
, "object") == 0)
4104 save_temps_flag
= SAVE_TEMPS_OBJ
;
4106 fatal_error (input_location
, "%qs is an unknown -save-temps option",
4107 decoded
->orig_option_with_args_text
);
4110 case OPT_no_canonical_prefixes
:
4111 /* Already handled as a special case, so ignored here. */
4117 /* These options set the variables specified in common.opt
4118 automatically, but do need to be saved for spec
4124 struct user_specs
*user
= XNEW (struct user_specs
);
4126 user
->next
= (struct user_specs
*) 0;
4127 user
->filename
= arg
;
4128 if (user_specs_tail
)
4129 user_specs_tail
->next
= user
;
4131 user_specs_head
= user
;
4132 user_specs_tail
= user
;
4138 target_system_root
= arg
;
4139 target_system_root_changed
= 1;
4144 if (report_times_to_file
)
4145 fclose (report_times_to_file
);
4146 report_times_to_file
= fopen (arg
, "a");
4152 This is similar to -v except that there is no execution
4153 of the commands and the echoed arguments are quoted. It
4154 is intended for use in shell scripts to capture the
4155 driver-generated command line. */
4156 verbose_only_flag
++;
4163 size_t len
= strlen (arg
);
4165 /* Catch the case where the user has forgotten to append a
4166 directory separator to the path. Note, they may be using
4167 -B to add an executable name prefix, eg "i386-elf-", in
4168 order to distinguish between multiple installations of
4169 GCC in the same directory. Hence we must check to see
4170 if appending a directory separator actually makes a
4171 valid directory name. */
4172 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
4173 && is_directory (arg
, false))
4175 char *tmp
= XNEWVEC (char, len
+ 2);
4177 tmp
[len
] = DIR_SEPARATOR
;
4182 add_prefix (&exec_prefixes
, arg
, NULL
,
4183 PREFIX_PRIORITY_B_OPT
, 0, 0);
4184 add_prefix (&startfile_prefixes
, arg
, NULL
,
4185 PREFIX_PRIORITY_B_OPT
, 0, 0);
4186 add_prefix (&include_prefixes
, arg
, NULL
,
4187 PREFIX_PRIORITY_B_OPT
, 0, 0);
4198 if (!strcmp (spec_lang
, "none"))
4199 /* Suppress the warning if -xnone comes after the last input
4200 file, because alternate command interfaces like g++ might
4201 find it useful to place -xnone after each input file. */
4204 last_language_n_infiles
= n_infiles
;
4210 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4211 arg
= convert_filename (arg
, ! have_c
, 0);
4214 /* Save the output name in case -save-temps=obj was used. */
4215 save_temps_prefix
= xstrdup (arg
);
4216 /* On some systems, ld cannot handle "-o" without a space. So
4217 split the option from its argument. */
4218 save_switch ("-o", 1, &arg
, validated
, true);
4221 #ifdef ENABLE_DEFAULT_PIE
4223 /* -pie is turned on by default. */
4226 case OPT_static_libgcc
:
4227 case OPT_shared_libgcc
:
4228 case OPT_static_libgfortran
:
4229 case OPT_static_libstdc__
:
4230 /* These are always valid, since gcc.c itself understands the
4231 first two, gfortranspec.c understands -static-libgfortran and
4232 g++spec.c understands -static-libstdc++ */
4241 handle_foffload_option (arg
);
4245 /* Various driver options need no special processing at this
4246 point, having been handled in a prescan above or being
4247 handled by specs. */
4252 save_switch (decoded
->canonical_option
[0],
4253 decoded
->canonical_option_num_elements
- 1,
4254 &decoded
->canonical_option
[1], validated
, true);
4258 /* Put the driver's standard set of option handlers in *HANDLERS. */
4261 set_option_handlers (struct cl_option_handlers
*handlers
)
4263 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
4264 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
4265 handlers
->num_handlers
= 3;
4266 handlers
->handlers
[0].handler
= driver_handle_option
;
4267 handlers
->handlers
[0].mask
= CL_DRIVER
;
4268 handlers
->handlers
[1].handler
= common_handle_option
;
4269 handlers
->handlers
[1].mask
= CL_COMMON
;
4270 handlers
->handlers
[2].handler
= target_handle_option
;
4271 handlers
->handlers
[2].mask
= CL_TARGET
;
4274 /* Create the vector `switches' and its contents.
4275 Store its length in `n_switches'. */
4278 process_command (unsigned int decoded_options_count
,
4279 struct cl_decoded_option
*decoded_options
)
4283 char *tooldir_prefix
, *tooldir_prefix2
;
4284 char *(*get_relative_prefix
) (const char *, const char *,
4285 const char *) = NULL
;
4286 struct cl_option_handlers handlers
;
4289 gcc_exec_prefix
= env
.get ("GCC_EXEC_PREFIX");
4293 added_libraries
= 0;
4295 /* Figure compiler version from version string. */
4297 compiler_version
= temp1
= xstrdup (version_string
);
4299 for (; *temp1
; ++temp1
)
4308 /* Handle any -no-canonical-prefixes flag early, to assign the function
4309 that builds relative prefixes. This function creates default search
4310 paths that are needed later in normal option handling. */
4312 for (j
= 1; j
< decoded_options_count
; j
++)
4314 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
4316 get_relative_prefix
= make_relative_prefix_ignore_links
;
4320 if (! get_relative_prefix
)
4321 get_relative_prefix
= make_relative_prefix
;
4323 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
4324 see if we can create it from the pathname specified in
4325 decoded_options[0].arg. */
4327 gcc_libexec_prefix
= standard_libexec_prefix
;
4329 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
4330 if (!gcc_exec_prefix
)
4332 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4333 standard_bindir_prefix
,
4334 standard_exec_prefix
);
4335 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4336 standard_bindir_prefix
,
4337 standard_libexec_prefix
);
4338 if (gcc_exec_prefix
)
4339 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
4343 /* make_relative_prefix requires a program name, but
4344 GCC_EXEC_PREFIX is typically a directory name with a trailing
4345 / (which is ignored by make_relative_prefix), so append a
4347 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
4348 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
4349 standard_exec_prefix
,
4350 standard_libexec_prefix
);
4352 /* The path is unrelocated, so fallback to the original setting. */
4353 if (!gcc_libexec_prefix
)
4354 gcc_libexec_prefix
= standard_libexec_prefix
;
4360 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
4361 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
4362 or an automatically created GCC_EXEC_PREFIX from
4363 decoded_options[0].arg. */
4365 /* Do language-specific adjustment/addition of flags. */
4366 lang_specific_driver (&decoded_options
, &decoded_options_count
,
4369 if (gcc_exec_prefix
)
4371 int len
= strlen (gcc_exec_prefix
);
4373 if (len
> (int) sizeof ("/lib/gcc/") - 1
4374 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
4376 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
4377 if (IS_DIR_SEPARATOR (*temp
)
4378 && filename_ncmp (temp
+ 1, "lib", 3) == 0
4379 && IS_DIR_SEPARATOR (temp
[4])
4380 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
4381 len
-= sizeof ("/lib/gcc/") - 1;
4384 set_std_prefix (gcc_exec_prefix
, len
);
4385 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
4386 PREFIX_PRIORITY_LAST
, 0, 0);
4387 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
4388 PREFIX_PRIORITY_LAST
, 0, 0);
4391 /* COMPILER_PATH and LIBRARY_PATH have values
4392 that are lists of directory names with colons. */
4394 temp
= env
.get ("COMPILER_PATH");
4397 const char *startp
, *endp
;
4398 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4400 startp
= endp
= temp
;
4403 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4405 strncpy (nstore
, startp
, endp
- startp
);
4407 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4408 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4410 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4411 nstore
[endp
- startp
+ 1] = 0;
4414 nstore
[endp
- startp
] = 0;
4415 add_prefix (&exec_prefixes
, nstore
, 0,
4416 PREFIX_PRIORITY_LAST
, 0, 0);
4417 add_prefix (&include_prefixes
, nstore
, 0,
4418 PREFIX_PRIORITY_LAST
, 0, 0);
4421 endp
= startp
= endp
+ 1;
4428 temp
= env
.get (LIBRARY_PATH_ENV
);
4429 if (temp
&& *cross_compile
== '0')
4431 const char *startp
, *endp
;
4432 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4434 startp
= endp
= temp
;
4437 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4439 strncpy (nstore
, startp
, endp
- startp
);
4441 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4442 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4444 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4445 nstore
[endp
- startp
+ 1] = 0;
4448 nstore
[endp
- startp
] = 0;
4449 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4450 PREFIX_PRIORITY_LAST
, 0, 1);
4453 endp
= startp
= endp
+ 1;
4460 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4461 temp
= env
.get ("LPATH");
4462 if (temp
&& *cross_compile
== '0')
4464 const char *startp
, *endp
;
4465 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4467 startp
= endp
= temp
;
4470 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4472 strncpy (nstore
, startp
, endp
- startp
);
4474 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4475 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4477 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4478 nstore
[endp
- startp
+ 1] = 0;
4481 nstore
[endp
- startp
] = 0;
4482 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4483 PREFIX_PRIORITY_LAST
, 0, 1);
4486 endp
= startp
= endp
+ 1;
4493 /* Process the options and store input files and switches in their
4496 last_language_n_infiles
= -1;
4498 set_option_handlers (&handlers
);
4500 for (j
= 1; j
< decoded_options_count
; j
++)
4502 switch (decoded_options
[j
].opt_index
)
4514 for (j
= 1; j
< decoded_options_count
; j
++)
4516 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4518 const char *arg
= decoded_options
[j
].arg
;
4519 const char *p
= strrchr (arg
, '@');
4523 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4524 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4526 /* For LTO static archive support we handle input file
4527 specifications that are composed of a filename and
4528 an offset like FNAME@OFFSET. */
4531 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4532 && strlen (p
) == (unsigned int)consumed
)
4534 fname
= (char *)xmalloc (p
- arg
+ 1);
4535 memcpy (fname
, arg
, p
- arg
);
4536 fname
[p
- arg
] = '\0';
4537 /* Only accept non-stdin and existing FNAME parts, otherwise
4538 try with the full name. */
4539 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4542 fname
= xstrdup (arg
);
4546 fname
= xstrdup (arg
);
4548 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4550 bool resp
= fname
[0] == '@' && access (fname
+ 1, F_OK
) < 0;
4551 error ("%s: %m", fname
+ resp
);
4554 add_infile (arg
, spec_lang
);
4560 read_cmdline_option (&global_options
, &global_options_set
,
4561 decoded_options
+ j
, UNKNOWN_LOCATION
,
4562 CL_DRIVER
, &handlers
, global_dc
);
4565 /* If the user didn't specify any, default to all configured offload
4567 if (ENABLE_OFFLOADING
&& offload_targets
== NULL
)
4568 handle_foffload_option (OFFLOAD_TARGETS
);
4571 && strcmp (output_file
, "-") != 0
4572 && strcmp (output_file
, HOST_BIT_BUCKET
) != 0)
4575 for (i
= 0; i
< n_infiles
; i
++)
4576 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
4577 && canonical_filename_eq (infiles
[i
].name
, output_file
))
4578 fatal_error (input_location
,
4579 "input file %qs is the same as output file",
4583 if (output_file
!= NULL
&& output_file
[0] == '\0')
4584 fatal_error (input_location
, "output filename may not be empty");
4586 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4587 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4588 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4590 save_temps_length
= strlen (save_temps_prefix
);
4591 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4594 save_temps_length
-= strlen (temp
);
4595 save_temps_prefix
[save_temps_length
] = '\0';
4599 else if (save_temps_prefix
!= NULL
)
4601 free (save_temps_prefix
);
4602 save_temps_prefix
= NULL
;
4605 if (save_temps_flag
&& use_pipes
)
4607 /* -save-temps overrides -pipe, so that temp files are produced */
4608 if (save_temps_flag
)
4609 warning (0, "-pipe ignored because -save-temps specified");
4615 const char *gcd
= env
.get ("GCC_COMPARE_DEBUG");
4617 if (gcd
&& gcd
[0] == '-')
4620 compare_debug_opt
= gcd
;
4622 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4625 compare_debug_opt
= "-gtoggle";
4628 else if (compare_debug
< 0)
4631 gcc_assert (!compare_debug_opt
);
4634 /* Set up the search paths. We add directories that we expect to
4635 contain GNU Toolchain components before directories specified by
4636 the machine description so that we will find GNU components (like
4637 the GNU assembler) before those of the host system. */
4639 /* If we don't know where the toolchain has been installed, use the
4640 configured-in locations. */
4641 if (!gcc_exec_prefix
)
4644 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4645 PREFIX_PRIORITY_LAST
, 1, 0);
4646 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4647 PREFIX_PRIORITY_LAST
, 2, 0);
4648 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4649 PREFIX_PRIORITY_LAST
, 2, 0);
4651 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4652 PREFIX_PRIORITY_LAST
, 1, 0);
4655 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4656 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
4657 dir_separator_str
, NULL
);
4659 /* Look for tools relative to the location from which the driver is
4660 running, or, if that is not available, the configured prefix. */
4662 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4663 spec_host_machine
, dir_separator_str
, spec_version
,
4664 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
4665 free (tooldir_prefix2
);
4667 add_prefix (&exec_prefixes
,
4668 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4669 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4670 add_prefix (&startfile_prefixes
,
4671 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4672 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4673 free (tooldir_prefix
);
4675 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4676 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4677 then consider it to relocate with the rest of the GCC installation
4678 if GCC_EXEC_PREFIX is set.
4679 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4680 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4682 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4683 standard_bindir_prefix
,
4684 target_system_root
);
4685 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4687 target_system_root
= tmp_prefix
;
4688 target_system_root_changed
= 1;
4693 /* More prefixes are enabled in main, after we read the specs file
4694 and determine whether this is cross-compilation or not. */
4696 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4697 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4699 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4700 environment variable. */
4701 if (compare_debug
== 2 || compare_debug
== 3)
4703 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4704 save_switch (opt
, 0, NULL
, false, true);
4708 /* Ensure we only invoke each subprocess once. */
4709 if (print_subprocess_help
|| print_help_list
|| print_version
)
4713 /* Create a dummy input file, so that we can pass
4714 the help option on to the various sub-processes. */
4715 add_infile ("help-dummy", "c");
4718 /* Decide if undefined variable references are allowed in specs. */
4720 /* -v alone is safe. --version and --help alone or together are safe. Note
4721 that -v would make them unsafe, as they'd then be run for subprocesses as
4722 well, the location of which might depend on variables possibly coming
4723 from self-specs. Note also that the command name is counted in
4724 decoded_options_count. */
4726 unsigned help_version_count
= 0;
4729 help_version_count
++;
4731 if (print_help_list
)
4732 help_version_count
++;
4734 spec_undefvar_allowed
=
4735 ((verbose_flag
&& decoded_options_count
== 2)
4736 || help_version_count
== decoded_options_count
- 1);
4739 switches
[n_switches
].part1
= 0;
4741 infiles
[n_infiles
].name
= 0;
4744 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4745 and place that in the environment. */
4748 set_collect_gcc_options (void)
4753 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4755 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4756 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4759 for (i
= 0; (int) i
< n_switches
; i
++)
4761 const char *const *args
;
4764 obstack_grow (&collect_obstack
, " ", 1);
4768 /* Ignore elided switches. */
4769 if ((switches
[i
].live_cond
4770 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4774 obstack_grow (&collect_obstack
, "'-", 2);
4775 q
= switches
[i
].part1
;
4776 while ((p
= strchr (q
, '\'')))
4778 obstack_grow (&collect_obstack
, q
, p
- q
);
4779 obstack_grow (&collect_obstack
, "'\\''", 4);
4782 obstack_grow (&collect_obstack
, q
, strlen (q
));
4783 obstack_grow (&collect_obstack
, "'", 1);
4785 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4787 obstack_grow (&collect_obstack
, " '", 2);
4789 while ((p
= strchr (q
, '\'')))
4791 obstack_grow (&collect_obstack
, q
, p
- q
);
4792 obstack_grow (&collect_obstack
, "'\\''", 4);
4795 obstack_grow (&collect_obstack
, q
, strlen (q
));
4796 obstack_grow (&collect_obstack
, "'", 1);
4799 obstack_grow (&collect_obstack
, "\0", 1);
4800 xputenv (XOBFINISH (&collect_obstack
, char *));
4803 /* Process a spec string, accumulating and running commands. */
4805 /* These variables describe the input file name.
4806 input_file_number is the index on outfiles of this file,
4807 so that the output file name can be stored for later use by %o.
4808 input_basename is the start of the part of the input file
4809 sans all directory names, and basename_length is the number
4810 of characters starting there excluding the suffix .c or whatever. */
4812 static const char *gcc_input_filename
;
4813 static int input_file_number
;
4814 size_t input_filename_length
;
4815 static int basename_length
;
4816 static int suffixed_basename_length
;
4817 static const char *input_basename
;
4818 static const char *input_suffix
;
4819 #ifndef HOST_LACKS_INODE_NUMBERS
4820 static struct stat input_stat
;
4822 static int input_stat_set
;
4824 /* The compiler used to process the current input file. */
4825 static struct compiler
*input_file_compiler
;
4827 /* These are variables used within do_spec and do_spec_1. */
4829 /* Nonzero if an arg has been started and not yet terminated
4830 (with space, tab or newline). */
4831 static int arg_going
;
4833 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4834 is a temporary file name. */
4835 static int delete_this_arg
;
4837 /* Nonzero means %w has been seen; the next arg to be terminated
4838 is the output file name of this compilation. */
4839 static int this_is_output_file
;
4841 /* Nonzero means %s has been seen; the next arg to be terminated
4842 is the name of a library file and we should try the standard
4843 search dirs for it. */
4844 static int this_is_library_file
;
4846 /* Nonzero means %T has been seen; the next arg to be terminated
4847 is the name of a linker script and we should try all of the
4848 standard search dirs for it. If it is found insert a --script
4849 command line switch and then substitute the full path in place,
4850 otherwise generate an error message. */
4851 static int this_is_linker_script
;
4853 /* Nonzero means that the input of this command is coming from a pipe. */
4854 static int input_from_pipe
;
4856 /* Nonnull means substitute this for any suffix when outputting a switches
4858 static const char *suffix_subst
;
4860 /* If there is an argument being accumulated, terminate it and store it. */
4863 end_going_arg (void)
4869 obstack_1grow (&obstack
, 0);
4870 string
= XOBFINISH (&obstack
, const char *);
4871 if (this_is_library_file
)
4872 string
= find_file (string
);
4873 if (this_is_linker_script
)
4875 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4877 if (full_script_path
== NULL
)
4879 error ("unable to locate default linker script %qs in the library search paths", string
);
4880 /* Script was not found on search path. */
4883 store_arg ("--script", false, false);
4884 string
= full_script_path
;
4886 store_arg (string
, delete_this_arg
, this_is_output_file
);
4887 if (this_is_output_file
)
4888 outfiles
[input_file_number
] = string
;
4894 /* Parse the WRAPPER string which is a comma separated list of the command line
4895 and insert them into the beginning of argbuf. */
4898 insert_wrapper (const char *wrapper
)
4902 char *buf
= xstrdup (wrapper
);
4904 unsigned int old_length
= argbuf
.length ();
4912 while ((p
= strchr (p
, ',')) != NULL
);
4914 argbuf
.safe_grow (old_length
+ n
);
4915 memmove (argbuf
.address () + n
,
4917 old_length
* sizeof (const_char_p
));
4931 while ((p
= strchr (p
, ',')) != NULL
);
4932 gcc_assert (i
== n
);
4935 /* Process the spec SPEC and run the commands specified therein.
4936 Returns 0 if the spec is successfully processed; -1 if failed. */
4939 do_spec (const char *spec
)
4943 value
= do_spec_2 (spec
, NULL
);
4945 /* Force out any unfinished command.
4946 If -pipe, this forces out the last command if it ended in `|'. */
4949 if (argbuf
.length () > 0
4950 && !strcmp (argbuf
.last (), "|"))
4953 set_collect_gcc_options ();
4955 if (argbuf
.length () > 0)
4962 /* Process the spec SPEC, with SOFT_MATCHED_PART designating the current value
4963 of a matched * pattern which may be re-injected by way of %*. */
4966 do_spec_2 (const char *spec
, const char *soft_matched_part
)
4972 delete_this_arg
= 0;
4973 this_is_output_file
= 0;
4974 this_is_library_file
= 0;
4975 this_is_linker_script
= 0;
4976 input_from_pipe
= 0;
4977 suffix_subst
= NULL
;
4979 result
= do_spec_1 (spec
, 0, soft_matched_part
);
4986 /* Process the given spec string and add any new options to the end
4987 of the switches/n_switches array. */
4990 do_option_spec (const char *name
, const char *spec
)
4992 unsigned int i
, value_count
, value_len
;
4993 const char *p
, *q
, *value
;
4994 char *tmp_spec
, *tmp_spec_p
;
4996 if (configure_default_options
[0].name
== NULL
)
4999 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
5000 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
5002 if (i
== ARRAY_SIZE (configure_default_options
))
5005 value
= configure_default_options
[i
].value
;
5006 value_len
= strlen (value
);
5008 /* Compute the size of the final spec. */
5011 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
5017 /* Replace each %(VALUE) by the specified value. */
5018 tmp_spec
= (char *) alloca (strlen (spec
) + 1
5019 + value_count
* (value_len
- strlen ("%(VALUE)")));
5020 tmp_spec_p
= tmp_spec
;
5022 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
5024 memcpy (tmp_spec_p
, q
, p
- q
);
5025 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
5026 memcpy (tmp_spec_p
, value
, value_len
);
5027 tmp_spec_p
+= value_len
;
5028 q
= p
+ strlen ("%(VALUE)");
5030 strcpy (tmp_spec_p
, q
);
5032 do_self_spec (tmp_spec
);
5035 /* Process the given spec string and add any new options to the end
5036 of the switches/n_switches array. */
5039 do_self_spec (const char *spec
)
5043 do_spec_2 (spec
, NULL
);
5044 do_spec_1 (" ", 0, NULL
);
5046 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
5047 do_self_specs adds the replacements to switches array, so it shouldn't
5048 be processed afterwards. */
5049 for (i
= 0; i
< n_switches
; i
++)
5050 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
5051 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
5053 if (argbuf
.length () > 0)
5055 const char **argbuf_copy
;
5056 struct cl_decoded_option
*decoded_options
;
5057 struct cl_option_handlers handlers
;
5058 unsigned int decoded_options_count
;
5061 /* Create a copy of argbuf with a dummy argv[0] entry for
5062 decode_cmdline_options_to_array. */
5063 argbuf_copy
= XNEWVEC (const char *,
5064 argbuf
.length () + 1);
5065 argbuf_copy
[0] = "";
5066 memcpy (argbuf_copy
+ 1, argbuf
.address (),
5067 argbuf
.length () * sizeof (const char *));
5069 decode_cmdline_options_to_array (argbuf
.length () + 1,
5071 CL_DRIVER
, &decoded_options
,
5072 &decoded_options_count
);
5075 set_option_handlers (&handlers
);
5077 for (j
= 1; j
< decoded_options_count
; j
++)
5079 switch (decoded_options
[j
].opt_index
)
5081 case OPT_SPECIAL_input_file
:
5082 /* Specs should only generate options, not input
5084 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
5085 fatal_error (input_location
,
5086 "switch %qs does not start with %<-%>",
5087 decoded_options
[j
].arg
);
5089 fatal_error (input_location
,
5090 "spec-generated switch is just %<-%>");
5093 case OPT_fcompare_debug_second
:
5094 case OPT_fcompare_debug
:
5095 case OPT_fcompare_debug_
:
5097 /* Avoid duplicate processing of some options from
5098 compare-debug specs; just save them here. */
5099 save_switch (decoded_options
[j
].canonical_option
[0],
5100 (decoded_options
[j
].canonical_option_num_elements
5102 &decoded_options
[j
].canonical_option
[1], false, true);
5106 read_cmdline_option (&global_options
, &global_options_set
,
5107 decoded_options
+ j
, UNKNOWN_LOCATION
,
5108 CL_DRIVER
, &handlers
, global_dc
);
5113 free (decoded_options
);
5116 switches
[n_switches
].part1
= 0;
5120 /* Callback for processing %D and %I specs. */
5122 struct spec_path_info
{
5127 bool separate_options
;
5131 spec_path (char *path
, void *data
)
5133 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
5137 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
5140 if (info
->append_len
!= 0)
5142 len
= strlen (path
);
5143 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
5146 if (!is_directory (path
, true))
5149 do_spec_1 (info
->option
, 1, NULL
);
5150 if (info
->separate_options
)
5151 do_spec_1 (" ", 0, NULL
);
5153 if (info
->append_len
== 0)
5155 len
= strlen (path
);
5156 save
= path
[len
- 1];
5157 if (IS_DIR_SEPARATOR (path
[len
- 1]))
5158 path
[len
- 1] = '\0';
5161 do_spec_1 (path
, 1, NULL
);
5162 do_spec_1 (" ", 0, NULL
);
5164 /* Must not damage the original path. */
5165 if (info
->append_len
== 0)
5166 path
[len
- 1] = save
;
5171 /* True if we should compile INFILE. */
5174 compile_input_file_p (struct infile
*infile
)
5176 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5177 if (infile
->incompiler
== input_file_compiler
)
5182 /* Process each member of VEC as a spec. */
5185 do_specs_vec (vec
<char_p
> vec
)
5190 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
5192 do_spec_1 (opt
, 1, NULL
);
5193 /* Make each accumulated option a separate argument. */
5194 do_spec_1 (" ", 0, NULL
);
5198 /* Process the sub-spec SPEC as a portion of a larger spec.
5199 This is like processing a whole spec except that we do
5200 not initialize at the beginning and we do not supply a
5201 newline by default at the end.
5202 INSWITCH nonzero means don't process %-sequences in SPEC;
5203 in this case, % is treated as an ordinary character.
5204 This is used while substituting switches.
5205 INSWITCH nonzero also causes SPC not to terminate an argument.
5207 Value is zero unless a line was finished
5208 and the command on that line reported an error. */
5211 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5213 const char *p
= spec
;
5218 /* If it's an empty string argument to a switch, keep it as is. */
5219 if (inswitch
&& !*p
)
5223 /* If substituting a switch, treat all chars like letters.
5224 Otherwise, NL, SPC, TAB and % are special. */
5225 switch (inswitch
? 'a' : c
)
5230 if (argbuf
.length () > 0
5231 && !strcmp (argbuf
.last (), "|"))
5233 /* A `|' before the newline means use a pipe here,
5234 but only if -pipe was specified.
5235 Otherwise, execute now and don't pass the `|' as an arg. */
5238 input_from_pipe
= 1;
5245 set_collect_gcc_options ();
5247 if (argbuf
.length () > 0)
5253 /* Reinitialize for a new command, and for a new argument. */
5256 delete_this_arg
= 0;
5257 this_is_output_file
= 0;
5258 this_is_library_file
= 0;
5259 this_is_linker_script
= 0;
5260 input_from_pipe
= 0;
5267 obstack_1grow (&obstack
, c
);
5275 /* Reinitialize for a new argument. */
5276 delete_this_arg
= 0;
5277 this_is_output_file
= 0;
5278 this_is_library_file
= 0;
5279 this_is_linker_script
= 0;
5286 fatal_error (input_location
, "spec %qs invalid", spec
);
5289 if (save_temps_length
)
5290 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5292 obstack_grow (&obstack
, input_basename
, basename_length
);
5293 if (compare_debug
< 0)
5294 obstack_grow (&obstack
, ".gk", 3);
5299 if (save_temps_length
)
5300 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5302 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
5303 if (compare_debug
< 0)
5304 obstack_grow (&obstack
, ".gk", 3);
5309 delete_this_arg
= 2;
5312 /* Dump out the directories specified with LIBRARY_PATH,
5313 followed by the absolute directories
5314 that we search for startfiles. */
5317 struct spec_path_info info
;
5320 info
.append_len
= 0;
5321 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5322 /* Used on systems which record the specified -L dirs
5323 and use them to search for dynamic linking.
5324 Relative directories always come from -B,
5325 and it is better not to use them for searching
5326 at run time. In particular, stage1 loses. */
5327 info
.omit_relative
= true;
5329 info
.omit_relative
= false;
5331 info
.separate_options
= false;
5333 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5338 /* %efoo means report an error with `foo' as error message
5339 and don't execute any more commands for this file. */
5343 while (*p
!= 0 && *p
!= '\n')
5345 buf
= (char *) alloca (p
- q
+ 1);
5346 strncpy (buf
, q
, p
- q
);
5348 error ("%s", _(buf
));
5353 /* %nfoo means report a notice with `foo' on stderr. */
5357 while (*p
!= 0 && *p
!= '\n')
5359 buf
= (char *) alloca (p
- q
+ 1);
5360 strncpy (buf
, q
, p
- q
);
5362 inform (UNKNOWN_LOCATION
, "%s", _(buf
));
5372 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5373 defined, and it is not a directory, and it is
5374 writable, use it. Otherwise, treat this like any
5375 other temporary file. */
5377 if ((!save_temps_flag
)
5378 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5379 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5381 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5382 strlen (HOST_BIT_BUCKET
));
5383 delete_this_arg
= 0;
5388 goto create_temp_file
;
5392 obstack_1grow (&obstack
, '-');
5393 delete_this_arg
= 0;
5396 /* consume suffix */
5397 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5399 if (p
[0] == '%' && p
[1] == 'O')
5404 goto create_temp_file
;
5408 /* consume suffix */
5409 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5411 if (p
[0] == '%' && p
[1] == 'O')
5416 goto create_temp_file
;
5422 struct temp_name
*t
;
5424 const char *suffix
= p
;
5425 char *saved_suffix
= NULL
;
5427 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5429 suffix_length
= p
- suffix
;
5430 if (p
[0] == '%' && p
[1] == 'O')
5433 /* We don't support extra suffix characters after %O. */
5434 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5435 fatal_error (input_location
,
5436 "spec %qs has invalid %<%%0%c%>", spec
, *p
);
5437 if (suffix_length
== 0)
5438 suffix
= TARGET_OBJECT_SUFFIX
;
5442 = XNEWVEC (char, suffix_length
5443 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
5444 strncpy (saved_suffix
, suffix
, suffix_length
);
5445 strcpy (saved_suffix
+ suffix_length
,
5446 TARGET_OBJECT_SUFFIX
);
5448 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5451 if (compare_debug
< 0)
5453 suffix
= concat (".gk", suffix
, NULL
);
5457 /* If -save-temps=obj and -o were specified, use that for the
5459 if (save_temps_length
)
5462 temp_filename_length
5463 = save_temps_length
+ suffix_length
+ 1;
5464 tmp
= (char *) alloca (temp_filename_length
);
5465 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5466 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5467 tmp
[save_temps_length
+ suffix_length
] = '\0';
5468 temp_filename
= save_string (tmp
, save_temps_length
5470 obstack_grow (&obstack
, temp_filename
,
5471 temp_filename_length
);
5473 delete_this_arg
= 0;
5477 /* If the gcc_input_filename has the same suffix specified
5478 for the %g, %u, or %U, and -save-temps is specified,
5479 we could end up using that file as an intermediate
5480 thus clobbering the user's source file (.e.g.,
5481 gcc -save-temps foo.s would clobber foo.s with the
5482 output of cpp0). So check for this condition and
5483 generate a temp file as the intermediate. */
5485 if (save_temps_flag
)
5488 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5489 tmp
= (char *) alloca (temp_filename_length
);
5490 memcpy (tmp
, input_basename
, basename_length
);
5491 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5492 tmp
[basename_length
+ suffix_length
] = '\0';
5493 temp_filename
= tmp
;
5495 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
5497 #ifndef HOST_LACKS_INODE_NUMBERS
5498 struct stat st_temp
;
5500 /* Note, set_input() resets input_stat_set to 0. */
5501 if (input_stat_set
== 0)
5503 input_stat_set
= stat (gcc_input_filename
,
5505 if (input_stat_set
>= 0)
5509 /* If we have the stat for the gcc_input_filename
5510 and we can do the stat for the temp_filename
5511 then the they could still refer to the same
5512 file if st_dev/st_ino's are the same. */
5513 if (input_stat_set
!= 1
5514 || stat (temp_filename
, &st_temp
) < 0
5515 || input_stat
.st_dev
!= st_temp
.st_dev
5516 || input_stat
.st_ino
!= st_temp
.st_ino
)
5518 /* Just compare canonical pathnames. */
5519 char* input_realname
= lrealpath (gcc_input_filename
);
5520 char* temp_realname
= lrealpath (temp_filename
);
5521 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
5522 free (input_realname
);
5523 free (temp_realname
);
5528 = save_string (temp_filename
,
5529 temp_filename_length
- 1);
5530 obstack_grow (&obstack
, temp_filename
,
5531 temp_filename_length
);
5533 delete_this_arg
= 0;
5539 /* See if we already have an association of %g/%u/%U and
5541 for (t
= temp_names
; t
; t
= t
->next
)
5542 if (t
->length
== suffix_length
5543 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5544 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5547 /* Make a new association if needed. %u and %j
5549 if (t
== 0 || c
== 'u' || c
== 'j')
5553 t
= XNEW (struct temp_name
);
5554 t
->next
= temp_names
;
5557 t
->length
= suffix_length
;
5560 t
->suffix
= saved_suffix
;
5561 saved_suffix
= NULL
;
5564 t
->suffix
= save_string (suffix
, suffix_length
);
5565 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5566 temp_filename
= make_temp_file (t
->suffix
);
5567 temp_filename_length
= strlen (temp_filename
);
5568 t
->filename
= temp_filename
;
5569 t
->filename_length
= temp_filename_length
;
5572 free (saved_suffix
);
5574 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5575 delete_this_arg
= 1;
5583 /* We are going to expand `%i' into `@FILE', where FILE
5584 is a newly-created temporary filename. The filenames
5585 that would usually be expanded in place of %o will be
5586 written to the temporary file. */
5587 if (at_file_supplied
)
5590 for (i
= 0; (int) i
< n_infiles
; i
++)
5591 if (compile_input_file_p (&infiles
[i
]))
5593 store_arg (infiles
[i
].name
, 0, 0);
5594 infiles
[i
].compiled
= true;
5597 if (at_file_supplied
)
5602 obstack_grow (&obstack
, gcc_input_filename
,
5603 input_filename_length
);
5610 struct spec_path_info info
;
5614 do_spec_1 ("-imultilib", 1, NULL
);
5615 /* Make this a separate argument. */
5616 do_spec_1 (" ", 0, NULL
);
5617 do_spec_1 (multilib_dir
, 1, NULL
);
5618 do_spec_1 (" ", 0, NULL
);
5623 do_spec_1 ("-imultiarch", 1, NULL
);
5624 /* Make this a separate argument. */
5625 do_spec_1 (" ", 0, NULL
);
5626 do_spec_1 (multiarch_dir
, 1, NULL
);
5627 do_spec_1 (" ", 0, NULL
);
5630 if (gcc_exec_prefix
)
5632 do_spec_1 ("-iprefix", 1, NULL
);
5633 /* Make this a separate argument. */
5634 do_spec_1 (" ", 0, NULL
);
5635 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5636 do_spec_1 (" ", 0, NULL
);
5639 if (target_system_root_changed
||
5640 (target_system_root
&& target_sysroot_hdrs_suffix
))
5642 do_spec_1 ("-isysroot", 1, NULL
);
5643 /* Make this a separate argument. */
5644 do_spec_1 (" ", 0, NULL
);
5645 do_spec_1 (target_system_root
, 1, NULL
);
5646 if (target_sysroot_hdrs_suffix
)
5647 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5648 do_spec_1 (" ", 0, NULL
);
5651 info
.option
= "-isystem";
5652 info
.append
= "include";
5653 info
.append_len
= strlen (info
.append
);
5654 info
.omit_relative
= false;
5655 info
.separate_options
= true;
5657 for_each_path (&include_prefixes
, false, info
.append_len
,
5660 info
.append
= "include-fixed";
5661 if (*sysroot_hdrs_suffix_spec
)
5662 info
.append
= concat (info
.append
, dir_separator_str
,
5663 multilib_dir
, NULL
);
5664 info
.append_len
= strlen (info
.append
);
5665 for_each_path (&include_prefixes
, false, info
.append_len
,
5671 /* We are going to expand `%o' into `@FILE', where FILE
5672 is a newly-created temporary filename. The filenames
5673 that would usually be expanded in place of %o will be
5674 written to the temporary file. */
5675 if (at_file_supplied
)
5678 for (i
= 0; i
< n_infiles
+ lang_specific_extra_outfiles
; i
++)
5680 store_arg (outfiles
[i
], 0, 0);
5682 if (at_file_supplied
)
5687 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5692 this_is_library_file
= 1;
5696 this_is_linker_script
= 1;
5700 outfiles
[input_file_number
] = NULL
;
5704 this_is_output_file
= 1;
5709 unsigned int cur_index
= argbuf
.length ();
5710 /* Handle the {...} following the %W. */
5712 fatal_error (input_location
,
5713 "spec %qs has invalid %<%%W%c%>", spec
, *p
);
5714 p
= handle_braces (p
+ 1);
5718 /* If any args were output, mark the last one for deletion
5720 if (argbuf
.length () != cur_index
)
5721 record_temp_file (argbuf
.last (), 0, 1);
5726 /* Handle the {...} following the %@. */
5728 fatal_error (input_location
,
5729 "spec %qs has invalid %<%%@%c%>", spec
, *p
);
5730 if (at_file_supplied
)
5732 p
= handle_braces (p
+ 1);
5733 if (at_file_supplied
)
5739 /* %x{OPTION} records OPTION for %X to output. */
5747 /* Skip past the option value and make a copy. */
5749 fatal_error (input_location
,
5750 "spec %qs has invalid %<%%x%c%>", spec
, *p
);
5753 string
= save_string (p1
+ 1, p
- p1
- 2);
5755 /* See if we already recorded this option. */
5756 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5757 if (! strcmp (string
, opt
))
5763 /* This option is new; add it. */
5764 add_linker_option (string
, strlen (string
));
5769 /* Dump out the options accumulated previously using %x. */
5771 do_specs_vec (linker_options
);
5774 /* Dump out the options accumulated previously using -Wa,. */
5776 do_specs_vec (assembler_options
);
5779 /* Dump out the options accumulated previously using -Wp,. */
5781 do_specs_vec (preprocessor_options
);
5784 /* Here are digits and numbers that just process
5785 a certain constant string as a spec. */
5788 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5794 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5800 value
= do_spec_1 (asm_spec
, 0, NULL
);
5806 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5813 const char *const spec
5814 = (input_file_compiler
->cpp_spec
5815 ? input_file_compiler
->cpp_spec
5817 value
= do_spec_1 (spec
, 0, NULL
);
5824 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5830 value
= do_spec_1 (link_spec
, 0, NULL
);
5836 value
= do_spec_1 (lib_spec
, 0, NULL
);
5842 if (multilib_os_dir
== NULL
)
5843 obstack_1grow (&obstack
, '.');
5845 obstack_grow (&obstack
, multilib_os_dir
,
5846 strlen (multilib_os_dir
));
5850 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5856 /* We assume there is a directory
5857 separator at the end of this string. */
5858 if (target_system_root
)
5860 obstack_grow (&obstack
, target_system_root
,
5861 strlen (target_system_root
));
5862 if (target_sysroot_suffix
)
5863 obstack_grow (&obstack
, target_sysroot_suffix
,
5864 strlen (target_sysroot_suffix
));
5869 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5874 /* Here we define characters other than letters and digits. */
5877 p
= handle_braces (p
);
5883 p
= handle_spec_function (p
, NULL
, soft_matched_part
);
5889 obstack_1grow (&obstack
, '%');
5896 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5898 suffix_subst
= save_string (p
- 1, len
+ 1);
5903 /* Henceforth ignore the option(s) matching the pattern
5909 int have_wildcard
= 0;
5914 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5916 switch_option
= SWITCH_IGNORE
;
5918 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5921 if (p
[len
-1] == '*')
5924 for (i
= 0; i
< n_switches
; i
++)
5925 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5926 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5928 switches
[i
].live_cond
|= switch_option
;
5929 /* User switch be validated from validate_all_switches.
5930 when the definition is seen from the spec file.
5931 If not defined anywhere, will be rejected. */
5932 if (switches
[i
].known
)
5933 switches
[i
].validated
= true;
5941 if (soft_matched_part
)
5943 if (soft_matched_part
[0])
5944 do_spec_1 (soft_matched_part
, 1, NULL
);
5945 /* Only insert a space after the substitution if it is at the
5946 end of the current sequence. So if:
5948 "%{foo=*:bar%*}%{foo=*:one%*two}"
5950 matches -foo=hello then it will produce:
5952 barhello onehellotwo
5954 if (*p
== 0 || *p
== '}')
5955 do_spec_1 (" ", 0, NULL
);
5958 /* Catch the case where a spec string contains something like
5959 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5960 hand side of the :. */
5961 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5964 /* Process a string found as the value of a spec given by name.
5965 This feature allows individual machine descriptions
5966 to add and use their own specs. */
5969 const char *name
= p
;
5970 struct spec_list
*sl
;
5973 /* The string after the S/P is the name of a spec that is to be
5975 while (*p
&& *p
!= ')')
5978 /* See if it's in the list. */
5979 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5980 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5982 name
= *(sl
->ptr_spec
);
5984 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
5992 value
= do_spec_1 (name
, 0, NULL
);
5997 /* Discard the closing paren. */
6004 error ("spec failure: unrecognized spec option %qc", c
);
6010 /* Backslash: treat next character as ordinary. */
6015 /* Ordinary character: put it into the current argument. */
6016 obstack_1grow (&obstack
, c
);
6020 /* End of string. If we are processing a spec function, we need to
6021 end any pending argument. */
6022 if (processing_spec_function
)
6028 /* Look up a spec function. */
6030 static const struct spec_function
*
6031 lookup_spec_function (const char *name
)
6033 const struct spec_function
*sf
;
6035 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
6036 if (strcmp (sf
->name
, name
) == 0)
6042 /* Evaluate a spec function. */
6045 eval_spec_function (const char *func
, const char *args
,
6046 const char *soft_matched_part
)
6048 const struct spec_function
*sf
;
6049 const char *funcval
;
6051 /* Saved spec processing context. */
6052 vec
<const_char_p
> save_argbuf
;
6055 int save_delete_this_arg
;
6056 int save_this_is_output_file
;
6057 int save_this_is_library_file
;
6058 int save_input_from_pipe
;
6059 int save_this_is_linker_script
;
6060 const char *save_suffix_subst
;
6062 int save_growing_size
;
6063 void *save_growing_value
= NULL
;
6065 sf
= lookup_spec_function (func
);
6067 fatal_error (input_location
, "unknown spec function %qs", func
);
6069 /* Push the spec processing context. */
6070 save_argbuf
= argbuf
;
6072 save_arg_going
= arg_going
;
6073 save_delete_this_arg
= delete_this_arg
;
6074 save_this_is_output_file
= this_is_output_file
;
6075 save_this_is_library_file
= this_is_library_file
;
6076 save_this_is_linker_script
= this_is_linker_script
;
6077 save_input_from_pipe
= input_from_pipe
;
6078 save_suffix_subst
= suffix_subst
;
6080 /* If we have some object growing now, finalize it so the args and function
6081 eval proceed from a cleared context. This is needed to prevent the first
6082 constructed arg from mistakenly including the growing value. We'll push
6083 this value back on the obstack once the function evaluation is done, to
6084 restore a consistent processing context for our caller. This is fine as
6085 the address of growing objects isn't guaranteed to remain stable until
6086 they are finalized, and we expect this situation to be rare enough for
6087 the extra copy not to be an issue. */
6088 save_growing_size
= obstack_object_size (&obstack
);
6089 if (save_growing_size
> 0)
6090 save_growing_value
= obstack_finish (&obstack
);
6092 /* Create a new spec processing context, and build the function
6096 if (do_spec_2 (args
, soft_matched_part
) < 0)
6097 fatal_error (input_location
, "error in args to spec function %qs", func
);
6099 /* argbuf_index is an index for the next argument to be inserted, and
6100 so contains the count of the args already inserted. */
6102 funcval
= (*sf
->func
) (argbuf
.length (),
6105 /* Pop the spec processing context. */
6107 argbuf
= save_argbuf
;
6109 arg_going
= save_arg_going
;
6110 delete_this_arg
= save_delete_this_arg
;
6111 this_is_output_file
= save_this_is_output_file
;
6112 this_is_library_file
= save_this_is_library_file
;
6113 this_is_linker_script
= save_this_is_linker_script
;
6114 input_from_pipe
= save_input_from_pipe
;
6115 suffix_subst
= save_suffix_subst
;
6117 if (save_growing_size
> 0)
6118 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
6123 /* Handle a spec function call of the form:
6127 ARGS is processed as a spec in a separate context and split into an
6128 argument vector in the normal fashion. The function returns a string
6129 containing a spec which we then process in the caller's context, or
6130 NULL if no processing is required.
6132 If RETVAL_NONNULL is not NULL, then store a bool whether function
6135 SOFT_MATCHED_PART holds the current value of a matched * pattern, which
6136 may be re-expanded with a %* as part of the function arguments. */
6139 handle_spec_function (const char *p
, bool *retval_nonnull
,
6140 const char *soft_matched_part
)
6143 const char *endp
, *funcval
;
6146 processing_spec_function
++;
6148 /* Get the function name. */
6149 for (endp
= p
; *endp
!= '\0'; endp
++)
6151 if (*endp
== '(') /* ) */
6153 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6154 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6155 fatal_error (input_location
, "malformed spec function name");
6157 if (*endp
!= '(') /* ) */
6158 fatal_error (input_location
, "no arguments for spec function");
6159 func
= save_string (p
, endp
- p
);
6162 /* Get the arguments. */
6163 for (count
= 0; *endp
!= '\0'; endp
++)
6172 else if (*endp
== '(') /* ) */
6177 fatal_error (input_location
, "malformed spec function arguments");
6178 args
= save_string (p
, endp
- p
);
6181 /* p now points to just past the end of the spec function expression. */
6183 funcval
= eval_spec_function (func
, args
, soft_matched_part
);
6184 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6187 *retval_nonnull
= funcval
!= NULL
;
6192 processing_spec_function
--;
6197 /* Inline subroutine of handle_braces. Returns true if the current
6198 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6200 input_suffix_matches (const char *atom
, const char *end_atom
)
6202 return (input_suffix
6203 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6204 && input_suffix
[end_atom
- atom
] == '\0');
6207 /* Subroutine of handle_braces. Returns true if the current
6208 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6210 input_spec_matches (const char *atom
, const char *end_atom
)
6212 return (input_file_compiler
6213 && input_file_compiler
->suffix
6214 && input_file_compiler
->suffix
[0] != '\0'
6215 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6217 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6220 /* Subroutine of handle_braces. Returns true if a switch
6221 matching the atom bracketed by ATOM and END_ATOM appeared on the
6224 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6227 int len
= end_atom
- atom
;
6228 int plen
= starred
? len
: -1;
6230 for (i
= 0; i
< n_switches
; i
++)
6231 if (!strncmp (switches
[i
].part1
, atom
, len
)
6232 && (starred
|| switches
[i
].part1
[len
] == '\0')
6233 && check_live_switch (i
, plen
))
6236 /* Check if a switch with separated form matching the atom.
6237 We check -D and -U switches. */
6238 else if (switches
[i
].args
!= 0)
6240 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
6241 && *switches
[i
].part1
== atom
[0])
6243 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
6244 && (starred
|| (switches
[i
].part1
[1] == '\0'
6245 && switches
[i
].args
[0][len
- 1] == '\0'))
6246 && check_live_switch (i
, (starred
? 1 : -1)))
6254 /* Inline subroutine of handle_braces. Mark all of the switches which
6255 match ATOM (extends to END_ATOM; STARRED indicates whether there
6256 was a star after the atom) for later processing. */
6258 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6261 int len
= end_atom
- atom
;
6262 int plen
= starred
? len
: -1;
6264 for (i
= 0; i
< n_switches
; i
++)
6265 if (!strncmp (switches
[i
].part1
, atom
, len
)
6266 && (starred
|| switches
[i
].part1
[len
] == '\0')
6267 && check_live_switch (i
, plen
))
6268 switches
[i
].ordering
= 1;
6271 /* Inline subroutine of handle_braces. Process all the currently
6272 marked switches through give_switch, and clear the marks. */
6274 process_marked_switches (void)
6278 for (i
= 0; i
< n_switches
; i
++)
6279 if (switches
[i
].ordering
== 1)
6281 switches
[i
].ordering
= 0;
6286 /* Handle a %{ ... } construct. P points just inside the leading {.
6287 Returns a pointer one past the end of the brace block, or 0
6288 if we call do_spec_1 and that returns -1. */
6291 handle_braces (const char *p
)
6293 const char *atom
, *end_atom
;
6294 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6295 char *esc_buf
= NULL
, *d_esc_buf
= NULL
;
6297 const char *orig
= p
;
6305 bool a_must_be_last
= false;
6306 bool ordered_set
= false;
6307 bool disjunct_set
= false;
6308 bool disj_matched
= false;
6309 bool disj_starred
= true;
6310 bool n_way_choice
= false;
6311 bool n_way_matched
= false;
6313 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6320 /* Scan one "atom" (S in the description above of %{}, possibly
6321 with '!', '.', '@', ',', or '*' modifiers). */
6323 a_is_suffix
= false;
6324 a_is_starred
= false;
6325 a_is_negated
= false;
6326 a_is_spectype
= false;
6330 p
++, a_is_negated
= true;
6333 if (*p
== '%' && p
[1] == ':')
6337 p
= handle_spec_function (p
+ 2, &a_matched
, NULL
);
6342 p
++, a_is_suffix
= true;
6344 p
++, a_is_spectype
= true;
6348 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6349 || *p
== ',' || *p
== '.' || *p
== '@' || *p
== '\\')
6355 fatal_error (input_location
,
6356 "braced spec %qs ends in escape", orig
);
6368 if (esc_buf
&& esc_buf
!= d_esc_buf
)
6371 ep
= esc_buf
= (char *) xmalloc (end_atom
- atom
- esc
+ 1);
6372 for (ap
= atom
; ap
!= end_atom
; ap
++, ep
++)
6384 p
++, a_is_starred
= 1;
6391 /* Substitute the switch(es) indicated by the current atom. */
6393 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6394 || a_is_spectype
|| atom
== end_atom
)
6397 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6400 process_marked_switches ();
6404 /* Substitute some text if the current atom appears as a switch
6406 disjunct_set
= true;
6410 if (atom
&& atom
== end_atom
)
6412 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6413 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6417 /* An empty term may appear as the last choice of an
6418 N-way choice set; it means "otherwise". */
6419 a_must_be_last
= true;
6420 disj_matched
= !n_way_matched
;
6421 disj_starred
= false;
6425 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6429 disj_starred
= false;
6431 /* Don't bother testing this atom if we already have a
6433 if (!disj_matched
&& !n_way_matched
)
6436 /* a_matched is already set by handle_spec_function. */;
6437 else if (a_is_suffix
)
6438 a_matched
= input_suffix_matches (atom
, end_atom
);
6439 else if (a_is_spectype
)
6440 a_matched
= input_spec_matches (atom
, end_atom
);
6442 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6444 if (a_matched
!= a_is_negated
)
6446 disj_matched
= true;
6448 d_end_atom
= end_atom
;
6449 d_esc_buf
= esc_buf
;
6456 /* Found the body, that is, the text to substitute if the
6457 current disjunction matches. */
6458 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6459 disj_matched
&& !n_way_matched
);
6463 /* If we have an N-way choice, reset state for the next
6467 n_way_choice
= true;
6468 n_way_matched
|= disj_matched
;
6469 disj_matched
= false;
6470 disj_starred
= true;
6471 d_atom
= d_end_atom
= NULL
;
6480 while (*p
++ != '}');
6483 if (d_esc_buf
&& d_esc_buf
!= esc_buf
)
6491 fatal_error (input_location
, "braced spec %qs is invalid at %qc", orig
, *p
);
6496 /* Subroutine of handle_braces. Scan and process a brace substitution body
6497 (X in the description of %{} syntax). P points one past the colon;
6498 ATOM and END_ATOM bracket the first atom which was found to be true
6499 (present) in the current disjunction; STARRED indicates whether all
6500 the atoms in the current disjunction were starred (for syntax validation);
6501 MATCHED indicates whether the disjunction matched or not, and therefore
6502 whether or not the body is to be processed through do_spec_1 or just
6503 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6507 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6508 int starred
, int matched
)
6510 const char *body
, *end_body
;
6511 unsigned int nesting_level
;
6512 bool have_subst
= false;
6514 /* Locate the closing } or ;, honoring nested braces.
6515 Trim trailing whitespace. */
6524 if (!--nesting_level
)
6527 else if (*p
== ';' && nesting_level
== 1)
6529 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6531 else if (*p
== '\0')
6537 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6540 if (have_subst
&& !starred
)
6545 /* Copy the substitution body to permanent storage and execute it.
6546 If have_subst is false, this is a simple matter of running the
6547 body through do_spec_1... */
6548 char *string
= save_string (body
, end_body
- body
);
6551 if (do_spec_1 (string
, 0, NULL
) < 0)
6559 /* ... but if have_subst is true, we have to process the
6560 body once for each matching switch, with %* set to the
6561 variant part of the switch. */
6562 unsigned int hard_match_len
= end_atom
- atom
;
6565 for (i
= 0; i
< n_switches
; i
++)
6566 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6567 && check_live_switch (i
, hard_match_len
))
6569 if (do_spec_1 (string
, 0,
6570 &switches
[i
].part1
[hard_match_len
]) < 0)
6575 /* Pass any arguments this switch has. */
6577 suffix_subst
= NULL
;
6586 fatal_error (input_location
, "braced spec body %qs is invalid", body
);
6589 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6590 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6591 spec, or -1 if either exact match or %* is used.
6593 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
6594 whose value does not begin with "no-" is obsoleted by the same value
6595 with the "no-", similarly for a switch with the "no-" prefix. */
6598 check_live_switch (int switchnum
, int prefix_length
)
6600 const char *name
= switches
[switchnum
].part1
;
6603 /* If we already processed this switch and determined if it was
6604 live or not, return our past determination. */
6605 if (switches
[switchnum
].live_cond
!= 0)
6606 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6607 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6608 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6611 /* In the common case of {<at-most-one-letter>*}, a negating
6612 switch would always match, so ignore that case. We will just
6613 send the conflicting switches to the compiler phase. */
6614 if (prefix_length
>= 0 && prefix_length
<= 1)
6617 /* Now search for duplicate in a manner that depends on the name. */
6621 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6622 if (switches
[i
].part1
[0] == 'O')
6624 switches
[switchnum
].validated
= true;
6625 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6630 case 'W': case 'f': case 'm': case 'g':
6631 if (! strncmp (name
+ 1, "no-", 3))
6633 /* We have Xno-YYY, search for XYYY. */
6634 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6635 if (switches
[i
].part1
[0] == name
[0]
6636 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6638 /* --specs are validated with the validate_switches mechanism. */
6639 if (switches
[switchnum
].known
)
6640 switches
[switchnum
].validated
= true;
6641 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6647 /* We have XYYY, search for Xno-YYY. */
6648 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6649 if (switches
[i
].part1
[0] == name
[0]
6650 && switches
[i
].part1
[1] == 'n'
6651 && switches
[i
].part1
[2] == 'o'
6652 && switches
[i
].part1
[3] == '-'
6653 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6655 /* --specs are validated with the validate_switches mechanism. */
6656 if (switches
[switchnum
].known
)
6657 switches
[switchnum
].validated
= true;
6658 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6665 /* Otherwise the switch is live. */
6666 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6670 /* Pass a switch to the current accumulating command
6671 in the same form that we received it.
6672 SWITCHNUM identifies the switch; it is an index into
6673 the vector of switches gcc received, which is `switches'.
6674 This cannot fail since it never finishes a command line.
6676 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6679 give_switch (int switchnum
, int omit_first_word
)
6681 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6684 if (!omit_first_word
)
6686 do_spec_1 ("-", 0, NULL
);
6687 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6690 if (switches
[switchnum
].args
!= 0)
6693 for (p
= switches
[switchnum
].args
; *p
; p
++)
6695 const char *arg
= *p
;
6697 do_spec_1 (" ", 0, NULL
);
6700 unsigned length
= strlen (arg
);
6703 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6704 if (arg
[length
] == '.')
6706 (CONST_CAST (char *, arg
))[length
] = 0;
6710 do_spec_1 (arg
, 1, NULL
);
6712 (CONST_CAST (char *, arg
))[length
] = '.';
6713 do_spec_1 (suffix_subst
, 1, NULL
);
6716 do_spec_1 (arg
, 1, NULL
);
6720 do_spec_1 (" ", 0, NULL
);
6721 switches
[switchnum
].validated
= true;
6724 /* Print GCC configuration (e.g. version, thread model, target,
6725 configuration_arguments) to a given FILE. */
6728 print_configuration (FILE *file
)
6733 fnotice (file
, "Target: %s\n", spec_machine
);
6734 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
6736 #ifdef THREAD_MODEL_SPEC
6737 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6738 but there's no point in doing all this processing just to get
6739 thread_model back. */
6740 obstack_init (&obstack
);
6741 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6742 obstack_1grow (&obstack
, '\0');
6743 thrmod
= XOBFINISH (&obstack
, const char *);
6745 thrmod
= thread_model
;
6748 fnotice (file
, "Thread model: %s\n", thrmod
);
6750 /* compiler_version is truncated at the first space when initialized
6751 from version string, so truncate version_string at the first space
6752 before comparing. */
6753 for (n
= 0; version_string
[n
]; n
++)
6754 if (version_string
[n
] == ' ')
6757 if (! strncmp (version_string
, compiler_version
, n
)
6758 && compiler_version
[n
] == 0)
6759 fnotice (file
, "gcc version %s %s\n", version_string
,
6762 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n",
6763 version_string
, pkgversion_string
, compiler_version
);
6767 #define RETRY_ICE_ATTEMPTS 3
6769 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
6772 files_equal_p (char *file1
, char *file2
)
6774 struct stat st1
, st2
;
6777 const int bufsize
= 8192;
6778 char *buf
= XNEWVEC (char, bufsize
);
6780 fd1
= open (file1
, O_RDONLY
);
6781 fd2
= open (file2
, O_RDONLY
);
6783 if (fd1
< 0 || fd2
< 0)
6786 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
6789 if (st1
.st_size
!= st2
.st_size
)
6792 for (n
= st1
.st_size
; n
; n
-= len
)
6795 if ((int) len
> bufsize
/ 2)
6798 if (read (fd1
, buf
, len
) != (int) len
6799 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
6804 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
6821 /* Check that compiler's output doesn't differ across runs.
6822 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
6823 stdout and stderr for each compiler run. Return true if all of
6824 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
6827 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
6830 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
6832 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
6833 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
6835 fnotice (stderr
, "The bug is not reproducible, so it is"
6836 " likely a hardware or OS problem.\n");
6840 return i
== RETRY_ICE_ATTEMPTS
- 2;
6843 enum attempt_status
{
6844 ATTEMPT_STATUS_FAIL_TO_RUN
,
6845 ATTEMPT_STATUS_SUCCESS
,
6850 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
6851 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
6852 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
6853 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
6854 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
6855 ATTEMPT_STATUS_SUCCESS otherwise. */
6857 static enum attempt_status
6858 run_attempt (const char **new_argv
, const char *out_temp
,
6859 const char *err_temp
, int emit_system_info
, int append
)
6862 if (emit_system_info
)
6864 FILE *file_out
= fopen (err_temp
, "a");
6865 print_configuration (file_out
);
6866 fputs ("\n", file_out
);
6872 struct pex_obj
*pex
;
6874 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
6875 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
6878 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
6880 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
6882 fatal_error (input_location
, "pex_init failed: %m");
6884 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
6885 CONST_CAST2 (char *const *, const char **, &new_argv
[1]), out_temp
,
6890 fatal_error (input_location
,
6891 err
? G_ ("cannot execute %qs: %s: %m")
6892 : G_ ("cannot execute %qs: %s"),
6893 new_argv
[0], errmsg
);
6896 if (!pex_get_status (pex
, 1, &exit_status
))
6899 switch (WEXITSTATUS (exit_status
))
6902 status
= ATTEMPT_STATUS_ICE
;
6905 case SUCCESS_EXIT_CODE
:
6906 status
= ATTEMPT_STATUS_SUCCESS
;
6918 /* This routine reads lines from IN file, adds C++ style comments
6919 at the begining of each line and writes result into OUT. */
6922 insert_comments (const char *file_in
, const char *file_out
)
6924 FILE *in
= fopen (file_in
, "rb");
6925 FILE *out
= fopen (file_out
, "wb");
6928 bool add_comment
= true;
6929 while (fgets (line
, sizeof (line
), in
))
6934 add_comment
= strchr (line
, '\n') != NULL
;
6941 /* This routine adds preprocessed source code into the given ERR_FILE.
6942 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
6943 add information in report file. RUN_ATTEMPT should return
6944 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
6947 do_report_bug (const char **new_argv
, const int nargs
,
6948 char **out_file
, char **err_file
)
6951 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
6954 write (fd
, "\n//", 3);
6955 for (i
= 0; i
< nargs
; i
++)
6958 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
6960 write (fd
, "\n\n", 2);
6962 new_argv
[nargs
] = "-E";
6963 new_argv
[nargs
+ 1] = NULL
;
6965 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
6967 if (status
== ATTEMPT_STATUS_SUCCESS
)
6969 fnotice (stderr
, "Preprocessed source stored into %s file,"
6970 " please attach this to your bugreport.\n", *out_file
);
6971 /* Make sure it is not deleted. */
6977 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
6978 containing GCC configuration, backtrace, compiler's command line options
6979 and preprocessed source code. */
6982 try_generate_repro (const char **argv
)
6984 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
6985 const char **new_argv
;
6986 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
6987 char **temp_stdout_files
= &temp_files
[0];
6988 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
6990 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
6993 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
6994 /* Only retry compiler ICEs, not preprocessor ones. */
6995 if (! strcmp (argv
[nargs
], "-E"))
6997 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
7004 /* If the compiler is going to output any time information,
7005 it might varry between invocations. */
7006 else if (! strcmp (argv
[nargs
], "-quiet"))
7008 else if (! strcmp (argv
[nargs
], "-ftime-report"))
7011 if (out_arg
== -1 || !quiet
)
7014 memset (temp_files
, '\0', sizeof (temp_files
));
7015 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
7016 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
7017 new_argv
[nargs
++] = "-frandom-seed=0";
7018 new_argv
[nargs
++] = "-fdump-noaddr";
7019 new_argv
[nargs
] = NULL
;
7020 if (new_argv
[out_arg
][2] == '\0')
7021 new_argv
[out_arg
+ 1] = "-";
7023 new_argv
[out_arg
] = "-o-";
7026 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
7028 int emit_system_info
= 0;
7030 temp_stdout_files
[attempt
] = make_temp_file (".out");
7031 temp_stderr_files
[attempt
] = make_temp_file (".err");
7033 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
7036 emit_system_info
= 1;
7039 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
7040 temp_stderr_files
[attempt
], emit_system_info
,
7043 if (status
!= ATTEMPT_STATUS_ICE
)
7045 fnotice (stderr
, "The bug is not reproducible, so it is"
7046 " likely a hardware or OS problem.\n");
7051 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
7055 /* Insert commented out backtrace into report file. */
7056 char **stderr_commented
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
7057 insert_comments (temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
7060 /* In final attempt we append compiler options and preprocesssed code to last
7061 generated .out file with configuration and backtrace. */
7062 char **err
= &temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1];
7063 do_report_bug (new_argv
, nargs
, stderr_commented
, err
);
7067 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
7070 unlink (temp_stdout_files
[i
]);
7071 free (temp_stdout_files
[i
]);
7075 /* Search for a file named NAME trying various prefixes including the
7076 user's -B prefix and some standard ones.
7077 Return the absolute file name found. If nothing is found, return NAME. */
7080 find_file (const char *name
)
7082 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
7083 return newname
? newname
: name
;
7086 /* Determine whether a directory exists. If LINKER, return 0 for
7087 certain fixed names not needed by the linker. */
7090 is_directory (const char *path1
, bool linker
)
7097 /* Ensure the string ends with "/.". The resulting path will be a
7098 directory even if the given path is a symbolic link. */
7099 len1
= strlen (path1
);
7100 path
= (char *) alloca (3 + len1
);
7101 memcpy (path
, path1
, len1
);
7103 if (!IS_DIR_SEPARATOR (cp
[-1]))
7104 *cp
++ = DIR_SEPARATOR
;
7108 /* Exclude directories that the linker is known to search. */
7110 && IS_DIR_SEPARATOR (path
[0])
7112 && filename_ncmp (path
+ 1, "lib", 3) == 0)
7114 && filename_ncmp (path
+ 1, "usr", 3) == 0
7115 && IS_DIR_SEPARATOR (path
[4])
7116 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
7119 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
7122 /* Set up the various global variables to indicate that we're processing
7123 the input file named FILENAME. */
7126 set_input (const char *filename
)
7130 gcc_input_filename
= filename
;
7131 input_filename_length
= strlen (gcc_input_filename
);
7132 input_basename
= lbasename (gcc_input_filename
);
7134 /* Find a suffix starting with the last period,
7135 and set basename_length to exclude that suffix. */
7136 basename_length
= strlen (input_basename
);
7137 suffixed_basename_length
= basename_length
;
7138 p
= input_basename
+ basename_length
;
7139 while (p
!= input_basename
&& *p
!= '.')
7141 if (*p
== '.' && p
!= input_basename
)
7143 basename_length
= p
- input_basename
;
7144 input_suffix
= p
+ 1;
7149 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
7150 we will need to do a stat on the gcc_input_filename. The
7151 INPUT_STAT_SET signals that the stat is needed. */
7155 /* On fatal signals, delete all the temporary files. */
7158 fatal_signal (int signum
)
7160 signal (signum
, SIG_DFL
);
7161 delete_failure_queue ();
7162 delete_temp_files ();
7163 /* Get the same signal again, this time not handled,
7164 so its normal effect occurs. */
7165 kill (getpid (), signum
);
7168 /* Compare the contents of the two files named CMPFILE[0] and
7169 CMPFILE[1]. Return zero if they're identical, nonzero
7173 compare_files (char *cmpfile
[])
7176 FILE *temp
[2] = { NULL
, NULL
};
7182 void *map
[2] = { NULL
, NULL
};
7184 for (i
= 0; i
< 2; i
++)
7188 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
7190 error ("%s: could not determine length of compare-debug file %s",
7191 gcc_input_filename
, cmpfile
[i
]);
7196 length
[i
] = st
.st_size
;
7199 if (!ret
&& length
[0] != length
[1])
7201 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
7206 for (i
= 0; i
< 2; i
++)
7208 int fd
= open (cmpfile
[i
], O_RDONLY
);
7211 error ("%s: could not open compare-debug file %s",
7212 gcc_input_filename
, cmpfile
[i
]);
7217 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
7220 if (map
[i
] == (void *) MAP_FAILED
)
7229 if (memcmp (map
[0], map
[1], length
[0]) != 0)
7231 error ("%s: -fcompare-debug failure", gcc_input_filename
);
7236 for (i
= 0; i
< 2; i
++)
7238 munmap ((caddr_t
) map
[i
], length
[i
]);
7247 for (i
= 0; i
< 2; i
++)
7249 temp
[i
] = fopen (cmpfile
[i
], "r");
7252 error ("%s: could not open compare-debug file %s",
7253 gcc_input_filename
, cmpfile
[i
]);
7259 if (!ret
&& temp
[0] && temp
[1])
7263 c0
= fgetc (temp
[0]);
7264 c1
= fgetc (temp
[1]);
7268 error ("%s: -fcompare-debug failure",
7269 gcc_input_filename
);
7278 for (i
= 1; i
>= 0; i
--)
7287 driver::driver (bool can_finalize
, bool debug
) :
7288 explicit_link_files (NULL
),
7289 decoded_options (NULL
)
7291 env
.init (can_finalize
, debug
);
7296 XDELETEVEC (explicit_link_files
);
7297 XDELETEVEC (decoded_options
);
7300 /* driver::main is implemented as a series of driver:: method calls. */
7303 driver::main (int argc
, char **argv
)
7307 set_progname (argv
[0]);
7308 expand_at_files (&argc
, &argv
);
7309 decode_argv (argc
, const_cast <const char **> (argv
));
7310 global_initializations ();
7311 build_multilib_strings ();
7313 putenv_COLLECT_GCC (argv
[0]);
7314 maybe_putenv_COLLECT_LTO_WRAPPER ();
7315 maybe_putenv_OFFLOAD_TARGETS ();
7316 handle_unrecognized_options ();
7320 m_option_proposer
.suggest_completion (completion
);
7324 if (!maybe_print_and_exit ())
7327 early_exit
= prepare_infiles ();
7329 return get_exit_code ();
7331 do_spec_on_infiles ();
7332 maybe_run_linker (argv
[0]);
7334 return get_exit_code ();
7337 /* Locate the final component of argv[0] after any leading path, and set
7338 the program name accordingly. */
7341 driver::set_progname (const char *argv0
) const
7343 const char *p
= argv0
+ strlen (argv0
);
7344 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
7348 xmalloc_set_program_name (progname
);
7351 /* Expand any @ files within the command-line args,
7352 setting at_file_supplied if any were expanded. */
7355 driver::expand_at_files (int *argc
, char ***argv
) const
7357 char **old_argv
= *argv
;
7359 expandargv (argc
, argv
);
7361 /* Determine if any expansions were made. */
7362 if (*argv
!= old_argv
)
7363 at_file_supplied
= true;
7366 /* Decode the command-line arguments from argc/argv into the
7367 decoded_options array. */
7370 driver::decode_argv (int argc
, const char **argv
)
7372 /* Register the language-independent parameters. */
7373 global_init_params ();
7376 init_opts_obstack ();
7377 init_options_struct (&global_options
, &global_options_set
);
7379 decode_cmdline_options_to_array (argc
, argv
,
7381 &decoded_options
, &decoded_options_count
);
7384 /* Perform various initializations and setup. */
7387 driver::global_initializations ()
7389 /* Unlock the stdio streams. */
7390 unlock_std_streams ();
7392 gcc_init_libintl ();
7394 diagnostic_initialize (global_dc
, 0);
7395 diagnostic_color_init (global_dc
);
7397 #ifdef GCC_DRIVER_HOST_INITIALIZATION
7398 /* Perform host dependent initialization when needed. */
7399 GCC_DRIVER_HOST_INITIALIZATION
;
7402 if (atexit (delete_temp_files
) != 0)
7403 fatal_error (input_location
, "atexit failed");
7405 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
7406 signal (SIGINT
, fatal_signal
);
7408 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
7409 signal (SIGHUP
, fatal_signal
);
7411 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
7412 signal (SIGTERM
, fatal_signal
);
7414 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
7415 signal (SIGPIPE
, fatal_signal
);
7418 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
7419 receive the signal. A different setting is inheritable */
7420 signal (SIGCHLD
, SIG_DFL
);
7423 /* Parsing and gimplification sometimes need quite large stack.
7424 Increase stack size limits if possible. */
7425 stack_limit_increase (64 * 1024 * 1024);
7427 /* Allocate the argument vector. */
7430 obstack_init (&obstack
);
7433 /* Build multilib_select, et. al from the separate lines that make up each
7434 multilib selection. */
7437 driver::build_multilib_strings () const
7441 const char *const *q
= multilib_raw
;
7444 obstack_init (&multilib_obstack
);
7445 while ((p
= *q
++) != (char *) 0)
7446 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7448 obstack_1grow (&multilib_obstack
, 0);
7449 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
7451 q
= multilib_matches_raw
;
7452 while ((p
= *q
++) != (char *) 0)
7453 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7455 obstack_1grow (&multilib_obstack
, 0);
7456 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
7458 q
= multilib_exclusions_raw
;
7459 while ((p
= *q
++) != (char *) 0)
7460 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7462 obstack_1grow (&multilib_obstack
, 0);
7463 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
7465 q
= multilib_reuse_raw
;
7466 while ((p
= *q
++) != (char *) 0)
7467 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7469 obstack_1grow (&multilib_obstack
, 0);
7470 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
7473 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
7476 obstack_1grow (&multilib_obstack
, ' ');
7477 obstack_grow (&multilib_obstack
,
7478 multilib_defaults_raw
[i
],
7479 strlen (multilib_defaults_raw
[i
]));
7483 obstack_1grow (&multilib_obstack
, 0);
7484 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
7488 /* Set up the spec-handling machinery. */
7491 driver::set_up_specs () const
7493 const char *spec_machine_suffix
;
7497 #ifdef INIT_ENVIRONMENT
7498 /* Set up any other necessary machine specific environment variables. */
7499 xputenv (INIT_ENVIRONMENT
);
7502 /* Make a table of what switches there are (switches, n_switches).
7503 Make a table of specified input files (infiles, n_infiles).
7504 Decode switches that are handled locally. */
7506 process_command (decoded_options_count
, decoded_options
);
7508 /* Initialize the vector of specs to just the default.
7509 This means one element containing 0s, as a terminator. */
7511 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
7512 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
7513 n_compilers
= n_default_compilers
;
7515 /* Read specs from a file if there is one. */
7517 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
7518 accel_dir_suffix
, dir_separator_str
, NULL
);
7519 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
7521 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
7522 /* Read the specs file unless it is a default one. */
7523 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
7524 read_specs (specs_file
, true, false);
7528 #ifdef ACCEL_COMPILER
7529 spec_machine_suffix
= machine_suffix
;
7531 spec_machine_suffix
= just_machine_suffix
;
7534 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
7535 for any override of as, ld and libraries. */
7536 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
7537 + strlen (spec_machine_suffix
) + sizeof ("specs"));
7538 strcpy (specs_file
, standard_exec_prefix
);
7539 strcat (specs_file
, spec_machine_suffix
);
7540 strcat (specs_file
, "specs");
7541 if (access (specs_file
, R_OK
) == 0)
7542 read_specs (specs_file
, true, false);
7544 /* Process any configure-time defaults specified for the command line
7545 options, via OPTION_DEFAULT_SPECS. */
7546 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
7547 do_option_spec (option_default_specs
[i
].name
,
7548 option_default_specs
[i
].spec
);
7550 /* Process DRIVER_SELF_SPECS, adding any new options to the end
7551 of the command line. */
7553 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
7554 do_self_spec (driver_self_specs
[i
]);
7556 /* If not cross-compiling, look for executables in the standard
7558 if (*cross_compile
== '0')
7560 if (*md_exec_prefix
)
7562 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
7563 PREFIX_PRIORITY_LAST
, 0, 0);
7567 /* Process sysroot_suffix_spec. */
7568 if (*sysroot_suffix_spec
!= 0
7569 && !no_sysroot_suffix
7570 && do_spec_2 (sysroot_suffix_spec
, NULL
) == 0)
7572 if (argbuf
.length () > 1)
7573 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
7574 else if (argbuf
.length () == 1)
7575 target_sysroot_suffix
= xstrdup (argbuf
.last ());
7578 #ifdef HAVE_LD_SYSROOT
7579 /* Pass the --sysroot option to the linker, if it supports that. If
7580 there is a sysroot_suffix_spec, it has already been processed by
7581 this point, so target_system_root really is the system root we
7583 if (target_system_root
)
7585 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7586 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
7587 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
7591 /* Process sysroot_hdrs_suffix_spec. */
7592 if (*sysroot_hdrs_suffix_spec
!= 0
7593 && !no_sysroot_suffix
7594 && do_spec_2 (sysroot_hdrs_suffix_spec
, NULL
) == 0)
7596 if (argbuf
.length () > 1)
7597 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7598 else if (argbuf
.length () == 1)
7599 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
7602 /* Look for startfiles in the standard places. */
7603 if (*startfile_prefix_spec
!= 0
7604 && do_spec_2 (startfile_prefix_spec
, NULL
) == 0
7605 && do_spec_1 (" ", 0, NULL
) == 0)
7609 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
7610 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
7611 PREFIX_PRIORITY_LAST
, 0, 1);
7613 /* We should eventually get rid of all these and stick to
7614 startfile_prefix_spec exclusively. */
7615 else if (*cross_compile
== '0' || target_system_root
)
7617 if (*md_startfile_prefix
)
7618 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7619 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7621 if (*md_startfile_prefix_1
)
7622 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7623 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7625 /* If standard_startfile_prefix is relative, base it on
7626 standard_exec_prefix. This lets us move the installed tree
7627 as a unit. If GCC_EXEC_PREFIX is defined, base
7628 standard_startfile_prefix on that as well.
7630 If the prefix is relative, only search it for native compilers;
7631 otherwise we will search a directory containing host libraries. */
7632 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7633 add_sysrooted_prefix (&startfile_prefixes
,
7634 standard_startfile_prefix
, "BINUTILS",
7635 PREFIX_PRIORITY_LAST
, 0, 1);
7636 else if (*cross_compile
== '0')
7638 add_prefix (&startfile_prefixes
,
7639 concat (gcc_exec_prefix
7640 ? gcc_exec_prefix
: standard_exec_prefix
,
7642 standard_startfile_prefix
, NULL
),
7643 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7646 /* Sysrooted prefixes are relocated because target_system_root is
7647 also relocated by gcc_exec_prefix. */
7648 if (*standard_startfile_prefix_1
)
7649 add_sysrooted_prefix (&startfile_prefixes
,
7650 standard_startfile_prefix_1
, "BINUTILS",
7651 PREFIX_PRIORITY_LAST
, 0, 1);
7652 if (*standard_startfile_prefix_2
)
7653 add_sysrooted_prefix (&startfile_prefixes
,
7654 standard_startfile_prefix_2
, "BINUTILS",
7655 PREFIX_PRIORITY_LAST
, 0, 1);
7658 /* Process any user specified specs in the order given on the command
7660 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7662 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7664 read_specs (filename
? filename
: uptr
->filename
, false, true);
7667 /* Process any user self specs. */
7669 struct spec_list
*sl
;
7670 for (sl
= specs
; sl
; sl
= sl
->next
)
7671 if (sl
->name_len
== sizeof "self_spec" - 1
7672 && !strcmp (sl
->name
, "self_spec"))
7673 do_self_spec (*sl
->ptr_spec
);
7678 enum save_temps save
;
7680 if (!compare_debug_second
)
7682 n_switches_debug_check
[1] = n_switches
;
7683 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7684 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
7687 do_self_spec ("%:compare-debug-self-opt()");
7688 n_switches_debug_check
[0] = n_switches
;
7689 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
7690 switches_debug_check
[0] = switches
;
7692 n_switches
= n_switches_debug_check
[1];
7693 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7694 switches
= switches_debug_check
[1];
7697 /* Avoid crash when computing %j in this early. */
7698 save
= save_temps_flag
;
7699 save_temps_flag
= SAVE_TEMPS_NONE
;
7701 compare_debug
= -compare_debug
;
7702 do_self_spec ("%:compare-debug-self-opt()");
7704 save_temps_flag
= save
;
7706 if (!compare_debug_second
)
7708 n_switches_debug_check
[1] = n_switches
;
7709 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7710 switches_debug_check
[1] = switches
;
7711 compare_debug
= -compare_debug
;
7712 n_switches
= n_switches_debug_check
[0];
7713 n_switches_alloc
= n_switches_debug_check
[0];
7714 switches
= switches_debug_check
[0];
7719 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7720 if (gcc_exec_prefix
)
7721 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
7722 dir_separator_str
, spec_version
,
7723 accel_dir_suffix
, dir_separator_str
, NULL
);
7725 /* Now we have the specs.
7726 Set the `valid' bits for switches that match anything in any spec. */
7728 validate_all_switches ();
7730 /* Now that we have the switches and the specs, set
7731 the subdirectory based on the options. */
7732 set_multilib_dir ();
7735 /* Set up to remember the pathname of gcc and any options
7736 needed for collect. We use argv[0] instead of progname because
7737 we need the complete pathname. */
7740 driver::putenv_COLLECT_GCC (const char *argv0
) const
7742 obstack_init (&collect_obstack
);
7743 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7744 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
7745 xputenv (XOBFINISH (&collect_obstack
, char *));
7748 /* Set up to remember the pathname of the lto wrapper. */
7751 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
7753 char *lto_wrapper_file
;
7756 lto_wrapper_file
= NULL
;
7758 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
7760 if (lto_wrapper_file
)
7762 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
7763 lto_wrapper_spec
= lto_wrapper_file
;
7764 obstack_init (&collect_obstack
);
7765 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7766 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7767 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7768 strlen (lto_wrapper_spec
) + 1);
7769 xputenv (XOBFINISH (&collect_obstack
, char *));
7774 /* Set up to remember the names of offload targets. */
7777 driver::maybe_putenv_OFFLOAD_TARGETS () const
7779 if (offload_targets
&& offload_targets
[0] != '\0')
7781 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
7782 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
7783 obstack_grow (&collect_obstack
, offload_targets
,
7784 strlen (offload_targets
) + 1);
7785 xputenv (XOBFINISH (&collect_obstack
, char *));
7788 free (offload_targets
);
7789 offload_targets
= NULL
;
7792 /* Reject switches that no pass was interested in. */
7795 driver::handle_unrecognized_options ()
7797 for (size_t i
= 0; (int) i
< n_switches
; i
++)
7798 if (! switches
[i
].validated
)
7800 const char *hint
= m_option_proposer
.suggest_option (switches
[i
].part1
);
7802 error ("unrecognized command line option %<-%s%>;"
7803 " did you mean %<-%s%>?",
7804 switches
[i
].part1
, hint
);
7806 error ("unrecognized command line option %<-%s%>",
7811 /* Handle the various -print-* options, returning 0 if the driver
7812 should exit, or nonzero if the driver should continue. */
7815 driver::maybe_print_and_exit () const
7817 if (print_search_dirs
)
7819 printf (_("install: %s%s\n"),
7820 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7821 gcc_exec_prefix
? "" : machine_suffix
);
7822 printf (_("programs: %s\n"),
7823 build_search_list (&exec_prefixes
, "", false, false));
7824 printf (_("libraries: %s\n"),
7825 build_search_list (&startfile_prefixes
, "", false, true));
7829 if (print_file_name
)
7831 printf ("%s\n", find_file (print_file_name
));
7835 if (print_prog_name
)
7837 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
7839 /* Append USE_LD to the default linker. */
7840 #ifdef DEFAULT_LINKER
7842 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
7843 int len
= (sizeof (DEFAULT_LINKER
)
7844 - sizeof (HOST_EXECUTABLE_SUFFIX
));
7848 char *default_linker
= xstrdup (DEFAULT_LINKER
);
7849 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
7850 HOST_EXECUTABLE_SUFFIX. */
7851 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
7853 default_linker
[len
] = '\0';
7854 ld
= concat (default_linker
, use_ld
,
7855 HOST_EXECUTABLE_SUFFIX
, NULL
);
7860 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
7861 if (access (ld
, X_OK
) == 0)
7863 printf ("%s\n", ld
);
7867 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
7869 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7870 printf ("%s\n", (newname
? newname
: print_prog_name
));
7874 if (print_multi_lib
)
7876 print_multilib_info ();
7880 if (print_multi_directory
)
7882 if (multilib_dir
== NULL
)
7885 printf ("%s\n", multilib_dir
);
7889 if (print_multiarch
)
7891 if (multiarch_dir
== NULL
)
7894 printf ("%s\n", multiarch_dir
);
7900 if (target_system_root
)
7902 if (target_sysroot_suffix
)
7903 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7905 printf ("%s\n", target_system_root
);
7910 if (print_multi_os_directory
)
7912 if (multilib_os_dir
== NULL
)
7915 printf ("%s\n", multilib_os_dir
);
7919 if (print_sysroot_headers_suffix
)
7921 if (*sysroot_hdrs_suffix_spec
)
7923 printf("%s\n", (target_sysroot_hdrs_suffix
7924 ? target_sysroot_hdrs_suffix
7929 /* The error status indicates that only one set of fixed
7930 headers should be built. */
7931 fatal_error (input_location
,
7932 "not configured with sysroot headers suffix");
7935 if (print_help_list
)
7941 printf (_("\nFor bug reporting instructions, please see:\n"));
7942 printf ("%s.\n", bug_report_url
);
7947 /* We do not exit here. Instead we have created a fake input file
7948 called 'help-dummy' which needs to be compiled, and we pass this
7949 on the various sub-processes, along with the --help switch.
7950 Ensure their output appears after ours. */
7951 fputc ('\n', stdout
);
7957 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
7959 printf ("Copyright %s 2018 Free Software Foundation, Inc.\n",
7961 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7962 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7967 /* We do not exit here. We use the same mechanism of --help to print
7968 the version of the sub-processes. */
7969 fputc ('\n', stdout
);
7975 print_configuration (stderr
);
7983 /* Figure out what to do with each input file.
7984 Return true if we need to exit early from "main", false otherwise. */
7987 driver::prepare_infiles ()
7990 int lang_n_infiles
= 0;
7992 if (n_infiles
== added_libraries
)
7993 fatal_error (input_location
, "no input files");
7996 /* Early exit needed from main. */
7999 /* Make a place to record the compiler output file names
8000 that correspond to the input files. */
8003 i
+= lang_specific_extra_outfiles
;
8004 outfiles
= XCNEWVEC (const char *, i
);
8006 /* Record which files were specified explicitly as link input. */
8008 explicit_link_files
= XCNEWVEC (char, n_infiles
);
8010 combine_inputs
= have_o
|| flag_wpa
;
8012 for (i
= 0; (int) i
< n_infiles
; i
++)
8014 const char *name
= infiles
[i
].name
;
8015 struct compiler
*compiler
= lookup_compiler (name
,
8017 infiles
[i
].language
);
8019 if (compiler
&& !(compiler
->combinable
))
8020 combine_inputs
= false;
8022 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
8023 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
8024 infiles
[i
].incompiler
= compiler
;
8028 input_file_compiler
= compiler
;
8029 infiles
[i
].incompiler
= compiler
;
8033 /* Since there is no compiler for this input file, assume it is a
8035 explicit_link_files
[i
] = 1;
8036 infiles
[i
].incompiler
= NULL
;
8038 infiles
[i
].compiled
= false;
8039 infiles
[i
].preprocessed
= false;
8042 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
8043 fatal_error (input_location
,
8044 "cannot specify -o with -c, -S or -E with multiple files");
8046 /* No early exit needed from main; we can continue. */
8050 /* Run the spec machinery on each input file. */
8053 driver::do_spec_on_infiles () const
8057 for (i
= 0; (int) i
< n_infiles
; i
++)
8059 int this_file_error
= 0;
8061 /* Tell do_spec what to substitute for %i. */
8063 input_file_number
= i
;
8064 set_input (infiles
[i
].name
);
8066 if (infiles
[i
].compiled
)
8069 /* Use the same thing in %o, unless cp->spec says otherwise. */
8071 outfiles
[i
] = gcc_input_filename
;
8073 /* Figure out which compiler from the file's suffix. */
8076 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
8077 infiles
[i
].language
);
8079 if (input_file_compiler
)
8081 /* Ok, we found an applicable compiler. Run its spec. */
8083 if (input_file_compiler
->spec
[0] == '#')
8085 error ("%s: %s compiler not installed on this system",
8086 gcc_input_filename
, &input_file_compiler
->spec
[1]);
8087 this_file_error
= 1;
8095 free (debug_check_temp_file
[0]);
8096 debug_check_temp_file
[0] = NULL
;
8098 free (debug_check_temp_file
[1]);
8099 debug_check_temp_file
[1] = NULL
;
8102 value
= do_spec (input_file_compiler
->spec
);
8103 infiles
[i
].compiled
= true;
8105 this_file_error
= 1;
8106 else if (compare_debug
&& debug_check_temp_file
[0])
8109 inform (UNKNOWN_LOCATION
,
8110 "recompiling with -fcompare-debug");
8112 compare_debug
= -compare_debug
;
8113 n_switches
= n_switches_debug_check
[1];
8114 n_switches_alloc
= n_switches_alloc_debug_check
[1];
8115 switches
= switches_debug_check
[1];
8117 value
= do_spec (input_file_compiler
->spec
);
8119 compare_debug
= -compare_debug
;
8120 n_switches
= n_switches_debug_check
[0];
8121 n_switches_alloc
= n_switches_alloc_debug_check
[0];
8122 switches
= switches_debug_check
[0];
8126 error ("during -fcompare-debug recompilation");
8127 this_file_error
= 1;
8130 gcc_assert (debug_check_temp_file
[1]
8131 && filename_cmp (debug_check_temp_file
[0],
8132 debug_check_temp_file
[1]));
8135 inform (UNKNOWN_LOCATION
, "comparing final insns dumps");
8137 if (compare_files (debug_check_temp_file
))
8138 this_file_error
= 1;
8143 free (debug_check_temp_file
[0]);
8144 debug_check_temp_file
[0] = NULL
;
8146 free (debug_check_temp_file
[1]);
8147 debug_check_temp_file
[1] = NULL
;
8152 /* If this file's name does not contain a recognized suffix,
8153 record it as explicit linker input. */
8156 explicit_link_files
[i
] = 1;
8158 /* Clear the delete-on-failure queue, deleting the files in it
8159 if this compilation failed. */
8161 if (this_file_error
)
8163 delete_failure_queue ();
8166 /* If this compilation succeeded, don't delete those files later. */
8167 clear_failure_queue ();
8170 /* Reset the input file name to the first compile/object file name, for use
8171 with %b in LINK_SPEC. We use the first input file that we can find
8172 a compiler to compile it instead of using infiles.language since for
8173 languages other than C we use aliases that we then lookup later. */
8178 for (i
= 0; i
< n_infiles
; i
++)
8179 if (infiles
[i
].incompiler
8180 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
8182 set_input (infiles
[i
].name
);
8189 /* Make sure INPUT_FILE_NUMBER points to first available open
8191 input_file_number
= n_infiles
;
8192 if (lang_specific_pre_link ())
8197 /* If we have to run the linker, do it now. */
8200 driver::maybe_run_linker (const char *argv0
) const
8203 int linker_was_run
= 0;
8204 int num_linker_inputs
;
8206 /* Determine if there are any linker input files. */
8207 num_linker_inputs
= 0;
8208 for (i
= 0; (int) i
< n_infiles
; i
++)
8209 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
8210 num_linker_inputs
++;
8212 /* Run ld to link all the compiler output files. */
8214 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
8216 int tmp
= execution_count
;
8220 #if HAVE_LTO_PLUGIN > 0
8221 #if HAVE_LTO_PLUGIN == 2
8222 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
8224 const char *fuse_linker_plugin
= "fuse-linker-plugin";
8228 /* We'll use ld if we can't find collect2. */
8229 if (! strcmp (linker_name_spec
, "collect2"))
8231 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
8233 linker_name_spec
= "ld";
8236 #if HAVE_LTO_PLUGIN > 0
8237 #if HAVE_LTO_PLUGIN == 2
8238 if (!switch_matches (fno_use_linker_plugin
,
8239 fno_use_linker_plugin
8240 + strlen (fno_use_linker_plugin
), 0))
8242 if (switch_matches (fuse_linker_plugin
,
8244 + strlen (fuse_linker_plugin
), 0))
8247 char *temp_spec
= find_a_file (&exec_prefixes
,
8248 LTOPLUGINSONAME
, R_OK
,
8251 fatal_error (input_location
,
8252 "-fuse-linker-plugin, but %s not found",
8254 linker_plugin_file_spec
= convert_white_space (temp_spec
);
8257 lto_gcc_spec
= argv0
;
8260 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
8262 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
8263 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
8265 if (print_subprocess_help
== 1)
8267 printf (_("\nLinker options\n==============\n\n"));
8268 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
8269 " to the linker.\n\n"));
8272 int value
= do_spec (link_command_spec
);
8275 linker_was_run
= (tmp
!= execution_count
);
8278 /* If options said don't run linker,
8279 complain about input files to be given to the linker. */
8281 if (! linker_was_run
&& !seen_error ())
8282 for (i
= 0; (int) i
< n_infiles
; i
++)
8283 if (explicit_link_files
[i
]
8284 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
8285 warning (0, "%s: linker input file unused because linking not done",
8289 /* The end of "main". */
8292 driver::final_actions () const
8294 /* Delete some or all of the temporary files we made. */
8297 delete_failure_queue ();
8298 delete_temp_files ();
8300 if (print_help_list
)
8302 printf (("\nFor bug reporting instructions, please see:\n"));
8303 printf ("%s\n", bug_report_url
);
8307 /* Determine what the exit code of the driver should be. */
8310 driver::get_exit_code () const
8312 return (signal_count
!= 0 ? 2
8313 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
8317 /* Find the proper compilation spec for the file name NAME,
8318 whose length is LENGTH. LANGUAGE is the specified language,
8319 or 0 if this file is to be passed to the linker. */
8321 static struct compiler
*
8322 lookup_compiler (const char *name
, size_t length
, const char *language
)
8324 struct compiler
*cp
;
8326 /* If this was specified by the user to be a linker input, indicate that. */
8327 if (language
!= 0 && language
[0] == '*')
8330 /* Otherwise, look for the language, if one is spec'd. */
8333 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8334 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
8336 if (name
!= NULL
&& strcmp (name
, "-") == 0
8337 && (strcmp (cp
->suffix
, "@c-header") == 0
8338 || strcmp (cp
->suffix
, "@c++-header") == 0)
8340 fatal_error (input_location
,
8341 "cannot use %<-%> as input filename for a "
8342 "precompiled header");
8347 error ("language %s not recognized", language
);
8351 /* Look for a suffix. */
8352 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8354 if (/* The suffix `-' matches only the file name `-'. */
8355 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8356 || (strlen (cp
->suffix
) < length
8357 /* See if the suffix matches the end of NAME. */
8358 && !strcmp (cp
->suffix
,
8359 name
+ length
- strlen (cp
->suffix
))
8364 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
8365 /* Look again, but case-insensitively this time. */
8367 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8369 if (/* The suffix `-' matches only the file name `-'. */
8370 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8371 || (strlen (cp
->suffix
) < length
8372 /* See if the suffix matches the end of NAME. */
8373 && ((!strcmp (cp
->suffix
,
8374 name
+ length
- strlen (cp
->suffix
))
8375 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
8376 && !strcasecmp (cp
->suffix
,
8377 name
+ length
- strlen (cp
->suffix
)))
8383 if (cp
>= compilers
)
8385 if (cp
->spec
[0] != '@')
8386 /* A non-alias entry: return it. */
8389 /* An alias entry maps a suffix to a language.
8390 Search for the language; pass 0 for NAME and LENGTH
8391 to avoid infinite recursion if language not found. */
8392 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
8398 save_string (const char *s
, int len
)
8400 char *result
= XNEWVEC (char, len
+ 1);
8402 gcc_checking_assert (strlen (s
) >= (unsigned int) len
);
8403 memcpy (result
, s
, len
);
8410 validate_switches_from_spec (const char *spec
, bool user
)
8412 const char *p
= spec
;
8418 || (*p
== 'W' && *++p
== '{')
8419 || (*p
== '@' && *++p
== '{')))
8420 /* We have a switch spec. */
8421 p
= validate_switches (p
+ 1, user
);
8425 validate_all_switches (void)
8427 struct compiler
*comp
;
8428 struct spec_list
*spec
;
8430 for (comp
= compilers
; comp
->spec
; comp
++)
8431 validate_switches_from_spec (comp
->spec
, false);
8433 /* Look through the linked list of specs read from the specs file. */
8434 for (spec
= specs
; spec
; spec
= spec
->next
)
8435 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
8437 validate_switches_from_spec (link_command_spec
, false);
8440 /* Look at the switch-name that comes after START
8441 and mark as valid all supplied switches that match it. */
8444 validate_switches (const char *start
, bool user_spec
)
8446 const char *p
= start
;
8450 bool suffix
= false;
8451 bool starred
= false;
8453 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
8462 if (*p
== '.' || *p
== ',')
8466 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
8467 || *p
== ',' || *p
== '.' || *p
== '@')
8472 starred
= true, p
++;
8478 /* Mark all matching switches as valid. */
8479 for (i
= 0; i
< n_switches
; i
++)
8480 if (!strncmp (switches
[i
].part1
, atom
, len
)
8481 && (starred
|| switches
[i
].part1
[len
] == '\0')
8482 && (switches
[i
].known
|| user_spec
))
8483 switches
[i
].validated
= true;
8487 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
8490 if (*p
&& p
[-1] == ':')
8492 while (*p
&& *p
!= ';' && *p
!= '}')
8497 if (*p
== '{' || *p
== '<')
8498 p
= validate_switches (p
+1, user_spec
);
8499 else if (p
[0] == 'W' && p
[1] == '{')
8500 p
= validate_switches (p
+2, user_spec
);
8501 else if (p
[0] == '@' && p
[1] == '{')
8502 p
= validate_switches (p
+2, user_spec
);
8509 if (*p
&& p
[-1] == ';')
8523 static struct mdswitchstr
*mdswitches
;
8524 static int n_mdswitches
;
8526 /* Check whether a particular argument was used. The first time we
8527 canonicalize the switches to keep only the ones we care about. */
8532 int operator () (const char *p
, int len
);
8539 const char *replace
;
8544 mswitchstr
*mswitches
;
8549 used_arg_t used_arg
;
8552 used_arg_t::operator () (const char *p
, int len
)
8558 struct mswitchstr
*matches
;
8562 /* Break multilib_matches into the component strings of string
8563 and replacement string. */
8564 for (q
= multilib_matches
; *q
!= '\0'; q
++)
8569 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
8571 q
= multilib_matches
;
8580 fatal_error (input_location
, "multilib spec %qs is invalid",
8585 matches
[i
].len
= q
- matches
[i
].str
;
8587 matches
[i
].replace
= ++q
;
8588 while (*q
!= ';' && *q
!= '\0')
8591 goto invalid_matches
;
8594 matches
[i
].rep_len
= q
- matches
[i
].replace
;
8600 /* Now build a list of the replacement string for switches that we care
8601 about. Make sure we allocate at least one entry. This prevents
8602 xmalloc from calling fatal, and prevents us from re-executing this
8605 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
8606 for (i
= 0; i
< n_switches
; i
++)
8607 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
8609 int xlen
= strlen (switches
[i
].part1
);
8610 for (j
= 0; j
< cnt
; j
++)
8611 if (xlen
== matches
[j
].len
8612 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
8614 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
8615 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
8616 mswitches
[n_mswitches
].replace
= (char *) 0;
8617 mswitches
[n_mswitches
].rep_len
= 0;
8623 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
8624 on the command line nor any options mutually incompatible with
8626 for (i
= 0; i
< n_mdswitches
; i
++)
8630 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
8636 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
8637 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
8639 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8646 if (*q
!= ' ' && *q
!= '\0')
8648 while (*r
!= ' ' && *r
!= '\0')
8651 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8654 if (used_arg (r
, q
- r
))
8659 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
8660 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
8661 mswitches
[n_mswitches
].replace
= (char *) 0;
8662 mswitches
[n_mswitches
].rep_len
= 0;
8675 for (i
= 0; i
< n_mswitches
; i
++)
8676 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8682 void used_arg_t::finalize ()
8684 XDELETEVEC (mswitches
);
8691 default_arg (const char *p
, int len
)
8695 for (i
= 0; i
< n_mdswitches
; i
++)
8696 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8702 /* Work out the subdirectory to use based on the options. The format of
8703 multilib_select is a list of elements. Each element is a subdirectory
8704 name followed by a list of options followed by a semicolon. The format
8705 of multilib_exclusions is the same, but without the preceding
8706 directory. First gcc will check the exclusions, if none of the options
8707 beginning with an exclamation point are present, and all of the other
8708 options are present, then we will ignore this completely. Passing
8709 that, gcc will consider each multilib_select in turn using the same
8710 rules for matching the options. If a match is found, that subdirectory
8712 A subdirectory name is optionally followed by a colon and the corresponding
8716 set_multilib_dir (void)
8719 unsigned int this_path_len
;
8720 const char *this_path
, *this_arg
;
8721 const char *start
, *end
;
8723 int ok
, ndfltok
, first
;
8726 start
= multilib_defaults
;
8727 while (*start
== ' ' || *start
== '\t')
8729 while (*start
!= '\0')
8732 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8734 while (*start
== ' ' || *start
== '\t')
8742 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8743 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8745 while (*start
== ' ' || *start
== '\t')
8751 for (end
= start
+ 1;
8752 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8755 obstack_grow (&multilib_obstack
, start
, end
- start
);
8756 obstack_1grow (&multilib_obstack
, 0);
8757 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8758 mdswitches
[i
++].len
= end
- start
;
8765 p
= multilib_exclusions
;
8768 /* Ignore newlines. */
8775 /* Check the arguments. */
8782 fatal_error (input_location
, "multilib exclusions %qs is invalid",
8783 multilib_exclusions
);
8793 while (*p
!= ' ' && *p
!= ';')
8796 goto invalid_exclusions
;
8800 if (*this_arg
!= '!')
8808 ok
= used_arg (this_arg
, p
- this_arg
);
8823 p
= multilib_select
;
8825 /* Append multilib reuse rules if any. With those rules, we can reuse
8826 one multilib for certain different options sets. */
8827 if (strlen (multilib_reuse
) > 0)
8828 p
= concat (p
, multilib_reuse
, NULL
);
8832 /* Ignore newlines. */
8839 /* Get the initial path. */
8846 fatal_error (input_location
, "multilib select %qs %qs is invalid",
8847 multilib_select
, multilib_reuse
);
8851 this_path_len
= p
- this_path
;
8853 /* Check the arguments. */
8860 goto invalid_select
;
8869 while (*p
!= ' ' && *p
!= ';')
8872 goto invalid_select
;
8876 if (*this_arg
!= '!')
8884 /* If this is a default argument, we can just ignore it.
8885 This is true even if this_arg begins with '!'. Beginning
8886 with '!' does not mean that this argument is necessarily
8887 inappropriate for this library: it merely means that
8888 there is a more specific library which uses this
8889 argument. If this argument is a default, we need not
8890 consider that more specific library. */
8891 ok
= used_arg (this_arg
, p
- this_arg
);
8898 if (default_arg (this_arg
, p
- this_arg
))
8907 if (this_path_len
!= 1
8908 || this_path
[0] != '.')
8910 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
8913 strncpy (new_multilib_dir
, this_path
, this_path_len
);
8914 new_multilib_dir
[this_path_len
] = '\0';
8915 q
= strchr (new_multilib_dir
, ':');
8918 multilib_dir
= new_multilib_dir
;
8925 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8927 while (q
< end
&& *q
!= ':')
8931 const char *q2
= q
+ 1, *ml_end
= end
;
8932 char *new_multilib_os_dir
;
8934 while (q2
< end
&& *q2
!= ':')
8938 if (ml_end
- q
== 1)
8939 multilib_os_dir
= xstrdup (".");
8942 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
8943 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
8944 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
8945 multilib_os_dir
= new_multilib_os_dir
;
8948 if (q2
< end
&& *q2
== ':')
8950 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
8951 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
8952 new_multiarch_dir
[end
- q2
- 1] = '\0';
8953 multiarch_dir
= new_multiarch_dir
;
8962 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
8963 && strcmp (multilib_os_dir
, ".") == 0)
8965 free (CONST_CAST (char *, multilib_os_dir
));
8966 multilib_os_dir
= NULL
;
8968 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
8969 multilib_os_dir
= multilib_dir
;
8972 /* Print out the multiple library subdirectory selection
8973 information. This prints out a series of lines. Each line looks
8974 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8975 required. Only the desired options are printed out, the negative
8976 matches. The options are print without a leading dash. There are
8977 no spaces to make it easy to use the information in the shell.
8978 Each subdirectory is printed only once. This assumes the ordering
8979 generated by the genmultilib script. Also, we leave out ones that match
8983 print_multilib_info (void)
8985 const char *p
= multilib_select
;
8986 const char *last_path
= 0, *this_path
;
8988 unsigned int last_path_len
= 0;
8993 /* Ignore newlines. */
9000 /* Get the initial path. */
9007 fatal_error (input_location
,
9008 "multilib select %qs is invalid", multilib_select
);
9014 /* When --disable-multilib was used but target defines
9015 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
9016 with .:: for multiarch configurations) are there just to find
9017 multilib_os_dir, so skip them from output. */
9018 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
9021 /* Check for matches with the multilib_exclusions. We don't bother
9022 with the '!' in either list. If any of the exclusion rules match
9023 all of its options with the select rule, we skip it. */
9025 const char *e
= multilib_exclusions
;
9026 const char *this_arg
;
9031 /* Ignore newlines. */
9038 /* Check the arguments. */
9047 fatal_error (input_location
,
9048 "multilib exclusion %qs is invalid",
9049 multilib_exclusions
);
9060 while (*e
!= ' ' && *e
!= ';')
9063 goto invalid_exclusion
;
9071 int len
= e
- this_arg
;
9074 goto invalid_select
;
9078 while (*q
!= ' ' && *q
!= ';')
9081 goto invalid_select
;
9085 if (! strncmp (arg
, this_arg
,
9086 (len
< q
- arg
) ? q
- arg
: len
)
9087 || default_arg (this_arg
, e
- this_arg
))
9117 /* If this is a duplicate, skip it. */
9118 skip
= (last_path
!= 0
9119 && (unsigned int) (p
- this_path
) == last_path_len
9120 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
9122 last_path
= this_path
;
9123 last_path_len
= p
- this_path
;
9126 /* If this directory requires any default arguments, we can skip
9127 it. We will already have printed a directory identical to
9128 this one which does not require that default argument. */
9139 goto invalid_select
;
9146 while (*q
!= ' ' && *q
!= ';')
9149 goto invalid_select
;
9154 && default_arg (arg
, q
- arg
))
9169 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
9180 goto invalid_select
;
9188 use_arg
= *p
!= '!';
9193 while (*p
!= ' ' && *p
!= ';')
9196 goto invalid_select
;
9208 /* If there are extra options, print them now. */
9209 if (multilib_extra
&& *multilib_extra
)
9211 int print_at
= TRUE
;
9214 for (q
= multilib_extra
; *q
!= '\0'; q
++)
9235 /* getenv built-in spec function.
9237 Returns the value of the environment variable given by its first argument,
9238 concatenated with the second argument. If the variable is not defined, a
9239 fatal error is issued unless such undefs are internally allowed, in which
9240 case the variable name prefixed by a '/' is used as the variable value.
9242 The leading '/' allows using the result at a spot where a full path would
9243 normally be expected and when the actual value doesn't really matter since
9244 undef vars are allowed. */
9247 getenv_spec_function (int argc
, const char **argv
)
9250 const char *varname
;
9260 value
= env
.get (varname
);
9262 /* If the variable isn't defined and this is allowed, craft our expected
9263 return value. Assume variable names used in specs strings don't contain
9264 any active spec character so don't need escaping. */
9265 if (!value
&& spec_undefvar_allowed
)
9267 result
= XNEWVAR (char, strlen(varname
) + 2);
9268 sprintf (result
, "/%s", varname
);
9273 fatal_error (input_location
,
9274 "environment variable %qs not defined", varname
);
9276 /* We have to escape every character of the environment variable so
9277 they are not interpreted as active spec characters. A
9278 particularly painful case is when we are reading a variable
9279 holding a windows path complete with \ separators. */
9280 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
9281 result
= XNEWVAR (char, len
);
9282 for (ptr
= result
; *value
; ptr
+= 2)
9288 strcpy (ptr
, argv
[1]);
9293 /* if-exists built-in spec function.
9295 Checks to see if the file specified by the absolute pathname in
9296 ARGS exists. Returns that pathname if found.
9298 The usual use for this function is to check for a library file
9299 (whose name has been expanded with %s). */
9302 if_exists_spec_function (int argc
, const char **argv
)
9304 /* Must have only one argument. */
9305 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9311 /* if-exists-else built-in spec function.
9313 This is like if-exists, but takes an additional argument which
9314 is returned if the first argument does not exist. */
9317 if_exists_else_spec_function (int argc
, const char **argv
)
9319 /* Must have exactly two arguments. */
9323 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9329 /* sanitize built-in spec function.
9331 This returns non-NULL, if sanitizing address, thread or
9332 any of the undefined behavior sanitizers. */
9335 sanitize_spec_function (int argc
, const char **argv
)
9340 if (strcmp (argv
[0], "address") == 0)
9341 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
9342 if (strcmp (argv
[0], "kernel-address") == 0)
9343 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
9344 if (strcmp (argv
[0], "thread") == 0)
9345 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
9346 if (strcmp (argv
[0], "undefined") == 0)
9347 return ((flag_sanitize
9348 & (SANITIZE_UNDEFINED
| SANITIZE_UNDEFINED_NONDEFAULT
))
9349 && !flag_sanitize_undefined_trap_on_error
) ? "" : NULL
;
9350 if (strcmp (argv
[0], "leak") == 0)
9351 return ((flag_sanitize
9352 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
9353 == SANITIZE_LEAK
) ? "" : NULL
;
9357 /* replace-outfile built-in spec function.
9359 This looks for the first argument in the outfiles array's name and
9360 replaces it with the second argument. */
9363 replace_outfile_spec_function (int argc
, const char **argv
)
9366 /* Must have exactly two arguments. */
9370 for (i
= 0; i
< n_infiles
; i
++)
9372 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9373 outfiles
[i
] = xstrdup (argv
[1]);
9378 /* remove-outfile built-in spec function.
9380 * This looks for the first argument in the outfiles array's name and
9384 remove_outfile_spec_function (int argc
, const char **argv
)
9387 /* Must have exactly one argument. */
9391 for (i
= 0; i
< n_infiles
; i
++)
9393 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9399 /* Given two version numbers, compares the two numbers.
9400 A version number must match the regular expression
9401 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
9404 compare_version_strings (const char *v1
, const char *v2
)
9409 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
9410 REG_EXTENDED
| REG_NOSUB
) != 0)
9412 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
9413 if (rresult
== REG_NOMATCH
)
9414 fatal_error (input_location
, "invalid version number %qs", v1
);
9415 else if (rresult
!= 0)
9417 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
9418 if (rresult
== REG_NOMATCH
)
9419 fatal_error (input_location
, "invalid version number %qs", v2
);
9420 else if (rresult
!= 0)
9423 return strverscmp (v1
, v2
);
9427 /* version_compare built-in spec function.
9429 This takes an argument of the following form:
9431 <comparison-op> <arg1> [<arg2>] <switch> <result>
9433 and produces "result" if the comparison evaluates to true,
9434 and nothing if it doesn't.
9436 The supported <comparison-op> values are:
9438 >= true if switch is a later (or same) version than arg1
9440 < true if switch is an earlier version than arg1
9442 >< true if switch is arg1 or later, and earlier than arg2
9443 <> true if switch is earlier than arg1 or is arg2 or later
9445 If the switch is not present, the condition is false unless
9446 the first character of the <comparison-op> is '!'.
9449 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
9450 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
9453 version_compare_spec_function (int argc
, const char **argv
)
9457 const char *switch_value
= NULL
;
9462 fatal_error (input_location
, "too few arguments to %%:version-compare");
9463 if (argv
[0][0] == '\0')
9465 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
9467 if (argc
!= nargs
+ 3)
9468 fatal_error (input_location
, "too many arguments to %%:version-compare");
9470 switch_len
= strlen (argv
[nargs
+ 1]);
9471 for (i
= 0; i
< n_switches
; i
++)
9472 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
9473 && check_live_switch (i
, switch_len
))
9474 switch_value
= switches
[i
].part1
+ switch_len
;
9476 if (switch_value
== NULL
)
9480 comp1
= compare_version_strings (switch_value
, argv
[1]);
9482 comp2
= compare_version_strings (switch_value
, argv
[2]);
9484 comp2
= -1; /* This value unused. */
9487 switch (argv
[0][0] << 8 | argv
[0][1])
9489 case '>' << 8 | '=':
9490 result
= comp1
>= 0;
9492 case '!' << 8 | '<':
9493 result
= comp1
>= 0 || switch_value
== NULL
;
9498 case '!' << 8 | '>':
9499 result
= comp1
< 0 || switch_value
== NULL
;
9501 case '>' << 8 | '<':
9502 result
= comp1
>= 0 && comp2
< 0;
9504 case '<' << 8 | '>':
9505 result
= comp1
< 0 || comp2
>= 0;
9509 fatal_error (input_location
,
9510 "unknown operator %qs in %%:version-compare", argv
[0]);
9515 return argv
[nargs
+ 2];
9518 /* %:include builtin spec function. This differs from %include in that it
9519 can be nested inside a spec, and thus be conditionalized. It takes
9520 one argument, the filename, and looks for it in the startfile path.
9521 The result is always NULL, i.e. an empty expansion. */
9524 include_spec_function (int argc
, const char **argv
)
9531 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
9532 read_specs (file
? file
: argv
[0], false, false);
9537 /* %:find-file spec function. This function replaces its argument by
9538 the file found through find_file, that is the -print-file-name gcc
9541 find_file_spec_function (int argc
, const char **argv
)
9548 file
= find_file (argv
[0]);
9553 /* %:find-plugindir spec function. This function replaces its argument
9554 by the -iplugindir=<dir> option. `dir' is found through find_file, that
9555 is the -print-file-name gcc program option. */
9557 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
9564 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
9569 /* %:print-asm-header spec function. Print a banner to say that the
9570 following output is from the assembler. */
9573 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
9574 const char **argv ATTRIBUTE_UNUSED
)
9576 printf (_("Assembler options\n=================\n\n"));
9577 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
9582 /* Get a random number for -frandom-seed */
9584 static unsigned HOST_WIDE_INT
9585 get_random_number (void)
9587 unsigned HOST_WIDE_INT ret
= 0;
9590 fd
= open ("/dev/urandom", O_RDONLY
);
9593 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
9599 /* Get some more or less random data. */
9600 #ifdef HAVE_GETTIMEOFDAY
9604 gettimeofday (&tv
, NULL
);
9605 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
9609 time_t now
= time (NULL
);
9611 if (now
!= (time_t)-1)
9612 ret
= (unsigned) now
;
9616 return ret
^ getpid ();
9619 /* %:compare-debug-dump-opt spec function. Save the last argument,
9620 expected to be the last -fdump-final-insns option, or generate a
9624 compare_debug_dump_opt_spec_function (int arg
,
9625 const char **argv ATTRIBUTE_UNUSED
)
9630 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
9633 fatal_error (input_location
,
9634 "too many arguments to %%:compare-debug-dump-opt");
9636 do_spec_2 ("%{fdump-final-insns=*:%*}", NULL
);
9637 do_spec_1 (" ", 0, NULL
);
9639 if (argbuf
.length () > 0
9640 && strcmp (argv
[argbuf
.length () - 1], "."))
9645 name
= xstrdup (argv
[argbuf
.length () - 1]);
9650 const char *ext
= NULL
;
9652 if (argbuf
.length () > 0)
9654 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}", NULL
);
9657 else if (!compare_debug
)
9660 do_spec_2 ("%g.gkd", NULL
);
9662 do_spec_1 (" ", 0, NULL
);
9664 gcc_assert (argbuf
.length () > 0);
9666 name
= concat (argbuf
.last (), ext
, NULL
);
9668 ret
= concat ("-fdump-final-insns=", name
, NULL
);
9671 which
= compare_debug
< 0;
9672 debug_check_temp_file
[which
] = name
;
9676 unsigned HOST_WIDE_INT value
= get_random_number ();
9678 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
9684 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
9695 static const char *debug_auxbase_opt
;
9697 /* %:compare-debug-self-opt spec function. Expands to the options
9698 that are to be passed in the second compilation of
9702 compare_debug_self_opt_spec_function (int arg
,
9703 const char **argv ATTRIBUTE_UNUSED
)
9706 fatal_error (input_location
,
9707 "too many arguments to %%:compare-debug-self-opt");
9709 if (compare_debug
>= 0)
9712 do_spec_2 ("%{c|S:%{o*:%*}}", NULL
);
9713 do_spec_1 (" ", 0, NULL
);
9715 if (argbuf
.length () > 0)
9716 debug_auxbase_opt
= concat ("-auxbase-strip ",
9720 debug_auxbase_opt
= NULL
;
9723 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
9724 %<fdump-final-insns=* -w -S -o %j \
9725 %{!fcompare-debug-second:-fcompare-debug-second} \
9726 ", compare_debug_opt
, NULL
);
9729 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
9730 options that are to be passed in the second compilation of
9731 compare-debug. It expects, as an argument, the basename of the
9732 current input file name, with the .gk suffix appended to it. */
9735 compare_debug_auxbase_opt_spec_function (int arg
,
9742 fatal_error (input_location
,
9743 "too few arguments to %%:compare-debug-auxbase-opt");
9746 fatal_error (input_location
,
9747 "too many arguments to %%:compare-debug-auxbase-opt");
9749 if (compare_debug
>= 0)
9752 len
= strlen (argv
[0]);
9753 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
9754 fatal_error (input_location
, "argument to %%:compare-debug-auxbase-opt "
9755 "does not end in .gk");
9757 if (debug_auxbase_opt
)
9758 return debug_auxbase_opt
;
9760 #define OPT "-auxbase "
9763 name
= (char*) xmalloc (sizeof (OPT
) + len
);
9764 memcpy (name
, OPT
, sizeof (OPT
) - 1);
9765 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
9766 name
[sizeof (OPT
) - 1 + len
] = '\0';
9773 /* %:pass-through-libs spec function. Finds all -l options and input
9774 file names in the lib spec passed to it, and makes a list of them
9775 prepended with the plugin option to cause them to be passed through
9776 to the final link after all the new object files have been added. */
9779 pass_through_libs_spec_func (int argc
, const char **argv
)
9781 char *prepended
= xstrdup (" ");
9783 /* Shlemiel the painter's algorithm. Innately horrible, but at least
9784 we know that there will never be more than a handful of strings to
9785 concat, and it's only once per run, so it's not worth optimising. */
9786 for (n
= 0; n
< argc
; n
++)
9788 char *old
= prepended
;
9789 /* Anything that isn't an option is a full path to an output
9790 file; pass it through if it ends in '.a'. Among options,
9792 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
9794 const char *lopt
= argv
[n
] + 2;
9795 /* Handle both joined and non-joined -l options. If for any
9796 reason there's a trailing -l with no joined or following
9797 arg just discard it. */
9798 if (!*lopt
&& ++n
>= argc
)
9802 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
9805 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
9807 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
9808 argv
[n
], " ", NULL
);
9810 if (prepended
!= old
)
9816 /* %:replace-extension spec function. Replaces the extension of the
9817 first argument with the second argument. */
9820 replace_extension_spec_func (int argc
, const char **argv
)
9828 fatal_error (input_location
, "too few arguments to %%:replace-extension");
9830 name
= xstrdup (argv
[0]);
9832 for (i
= strlen (name
) - 1; i
>= 0; i
--)
9833 if (IS_DIR_SEPARATOR (name
[i
]))
9836 p
= strrchr (name
+ i
+ 1, '.');
9840 result
= concat (name
, argv
[1], NULL
);
9846 /* Returns "" if ARGV[ARGC - 2] is greater than ARGV[ARGC-1].
9847 Otherwise, return NULL. */
9850 greater_than_spec_func (int argc
, const char **argv
)
9857 gcc_assert (argc
>= 2);
9859 long arg
= strtol (argv
[argc
- 2], &converted
, 10);
9860 gcc_assert (converted
!= argv
[argc
- 2]);
9862 long lim
= strtol (argv
[argc
- 1], &converted
, 10);
9863 gcc_assert (converted
!= argv
[argc
- 1]);
9871 /* Returns "" if debug_info_level is greater than ARGV[ARGC-1].
9872 Otherwise, return NULL. */
9875 debug_level_greater_than_spec_func (int argc
, const char **argv
)
9880 fatal_error (input_location
,
9881 "wrong number of arguments to %%:debug-level-gt");
9883 long arg
= strtol (argv
[0], &converted
, 10);
9884 gcc_assert (converted
!= argv
[0]);
9886 if (debug_info_level
> arg
)
9892 /* Insert backslash before spaces in ORIG (usually a file path), to
9893 avoid being broken by spec parser.
9895 This function is needed as do_spec_1 treats white space (' ' and '\t')
9896 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
9897 the file name should be treated as a single argument rather than being
9898 broken into multiple. Solution is to insert '\\' before the space in a
9901 This function converts and only converts all occurrence of ' '
9902 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
9906 "a\\ b" -> "a\\\\ b"
9908 orig: input null-terminating string that was allocated by xalloc. The
9909 memory it points to might be freed in this function. Behavior undefined
9910 if ORIG wasn't xalloced or was freed already at entry.
9912 Return: ORIG if no conversion needed. Otherwise a newly allocated string
9913 that was converted from ORIG. */
9916 convert_white_space (char *orig
)
9918 int len
, number_of_space
= 0;
9920 for (len
= 0; orig
[len
]; len
++)
9921 if (orig
[len
] == ' ' || orig
[len
] == '\t') number_of_space
++;
9923 if (number_of_space
)
9925 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
9927 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
9929 if (orig
[j
] == ' ' || orig
[j
] == '\t')
9930 new_spec
[k
++] = '\\';
9931 new_spec
[k
] = orig
[j
];
9941 path_prefix_reset (path_prefix
*prefix
)
9943 struct prefix_list
*iter
, *next
;
9944 iter
= prefix
->plist
;
9948 free (const_cast <char *> (iter
->prefix
));
9953 prefix
->max_len
= 0;
9956 /* Restore all state within gcc.c to the initial state, so that the driver
9957 code can be safely re-run in-process.
9959 Many const char * variables are referenced by static specs (see
9960 INIT_STATIC_SPEC above). These variables are restored to their default
9961 values by a simple loop over the static specs.
9963 For other variables, we directly restore them all to their initial
9964 values (often implicitly 0).
9966 Free the various obstacks in this file, along with "opts_obstack"
9969 This function also restores any environment variables that were changed. */
9975 params_c_finalize ();
9976 diagnostic_finish (global_dc
);
9979 at_file_supplied
= 0;
9980 print_help_list
= 0;
9982 verbose_only_flag
= 0;
9983 print_subprocess_help
= 0;
9985 report_times_to_file
= NULL
;
9986 target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
9987 target_system_root_changed
= 0;
9988 target_sysroot_suffix
= 0;
9989 target_sysroot_hdrs_suffix
= 0;
9990 save_temps_flag
= SAVE_TEMPS_NONE
;
9991 save_temps_prefix
= 0;
9992 save_temps_length
= 0;
9993 spec_machine
= DEFAULT_TARGET_MACHINE
;
9994 greatest_status
= 1;
9996 finalize_options_struct (&global_options
);
9997 finalize_options_struct (&global_options_set
);
9999 obstack_free (&obstack
, NULL
);
10000 obstack_free (&opts_obstack
, NULL
); /* in opts.c */
10001 obstack_free (&collect_obstack
, NULL
);
10003 link_command_spec
= LINK_COMMAND_SPEC
;
10005 obstack_free (&multilib_obstack
, NULL
);
10007 user_specs_head
= NULL
;
10008 user_specs_tail
= NULL
;
10010 /* Within the "compilers" vec, the fields "suffix" and "spec" were
10011 statically allocated for the default compilers, but dynamically
10012 allocated for additional compilers. Delete them for the latter. */
10013 for (int i
= n_default_compilers
; i
< n_compilers
; i
++)
10015 free (const_cast <char *> (compilers
[i
].suffix
));
10016 free (const_cast <char *> (compilers
[i
].spec
));
10018 XDELETEVEC (compilers
);
10022 linker_options
.truncate (0);
10023 assembler_options
.truncate (0);
10024 preprocessor_options
.truncate (0);
10026 path_prefix_reset (&exec_prefixes
);
10027 path_prefix_reset (&startfile_prefixes
);
10028 path_prefix_reset (&include_prefixes
);
10030 machine_suffix
= 0;
10031 just_machine_suffix
= 0;
10032 gcc_exec_prefix
= 0;
10033 gcc_libexec_prefix
= 0;
10034 md_exec_prefix
= MD_EXEC_PREFIX
;
10035 md_startfile_prefix
= MD_STARTFILE_PREFIX
;
10036 md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
10038 multilib_os_dir
= 0;
10041 /* Free any specs dynamically-allocated by set_spec.
10042 These will be at the head of the list, before the
10043 statically-allocated ones. */
10046 while (specs
!= static_specs
)
10048 spec_list
*next
= specs
->next
;
10049 free (const_cast <char *> (specs
->name
));
10055 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
10057 spec_list
*sl
= &static_specs
[i
];
10061 free (const_cast <char *> (*(sl
->ptr_spec
)));
10062 sl
->alloc_p
= false;
10064 *(sl
->ptr_spec
) = sl
->default_ptr
;
10067 extra_specs
= NULL
;
10070 processing_spec_function
= 0;
10078 execution_count
= 0;
10081 temp_filename
= NULL
;
10082 temp_filename_length
= 0;
10083 always_delete_queue
= NULL
;
10084 failure_delete_queue
= NULL
;
10086 XDELETEVEC (switches
);
10089 n_switches_alloc
= 0;
10092 compare_debug_second
= 0;
10093 compare_debug_opt
= NULL
;
10094 for (int i
= 0; i
< 2; i
++)
10096 switches_debug_check
[i
] = NULL
;
10097 n_switches_debug_check
[i
] = 0;
10098 n_switches_alloc_debug_check
[i
] = 0;
10099 debug_check_temp_file
[i
] = NULL
;
10102 XDELETEVEC (infiles
);
10105 n_infiles_alloc
= 0;
10107 combine_inputs
= false;
10108 added_libraries
= 0;
10109 XDELETEVEC (outfiles
);
10112 last_language_n_infiles
= 0;
10113 gcc_input_filename
= NULL
;
10114 input_file_number
= 0;
10115 input_filename_length
= 0;
10116 basename_length
= 0;
10117 suffixed_basename_length
= 0;
10118 input_basename
= NULL
;
10119 input_suffix
= NULL
;
10120 /* We don't need to purge "input_stat", just to unset "input_stat_set". */
10121 input_stat_set
= 0;
10122 input_file_compiler
= NULL
;
10124 delete_this_arg
= 0;
10125 this_is_output_file
= 0;
10126 this_is_library_file
= 0;
10127 this_is_linker_script
= 0;
10128 input_from_pipe
= 0;
10129 suffix_subst
= NULL
;
10134 debug_auxbase_opt
= NULL
;
10136 used_arg
.finalize ();
10140 Targets can provide configure-time default options in
10141 OPTION_DEFAULT_SPECS. The jit needs to access these, but
10142 they are expressed in the spec language.
10144 Run just enough of the driver to be able to expand these
10145 specs, and then call the callback CB on each
10146 such option. The options strings are *without* a leading
10147 '-' character e.g. ("march=x86-64"). Finally, clean up. */
10150 driver_get_configure_time_options (void (*cb
) (const char *option
,
10156 obstack_init (&obstack
);
10157 init_opts_obstack ();
10160 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
10161 do_option_spec (option_default_specs
[i
].name
,
10162 option_default_specs
[i
].spec
);
10164 for (i
= 0; (int) i
< n_switches
; i
++)
10166 gcc_assert (switches
[i
].part1
);
10167 (*cb
) (switches
[i
].part1
, user_data
);
10170 obstack_free (&opts_obstack
, NULL
);
10171 obstack_free (&obstack
, NULL
);