1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2017 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 /* This program is the user interface to the C compiler and possibly to
21 other compilers. It is used because compilation is a complicated procedure
22 which involves running several programs and passing temporary files between
23 them, forwarding the users switches to those programs selectively,
24 and deleting the temporary files at the end.
26 CC recognizes how to compile each input file by suffixes in the file names.
27 Once it knows which kind of compilation to perform, the procedure for
28 compilation is specified by a string called a "spec". */
32 #include "coretypes.h"
33 #include "multilib.h" /* before tm.h */
40 #include "diagnostic.h"
44 #include "filenames.h"
45 #include "spellcheck.h"
49 /* Manage the manipulation of env vars.
51 We poison "getenv" and "putenv", so that all enviroment-handling is
52 done through this class. Note that poisoning happens in the
53 preprocessor at the identifier level, and doesn't distinguish between
57 Hence we need to use "get" for the accessor method, not "getenv". */
62 void init (bool can_restore
, bool debug
);
63 const char *get (const char *name
);
64 void xput (const char *string
);
79 /* The singleton instance of class env_manager. */
81 static env_manager env
;
83 /* Initializer for class env_manager.
85 We can't do this as a constructor since we have a statically
86 allocated instance ("env" above). */
89 env_manager::init (bool can_restore
, bool debug
)
91 m_can_restore
= can_restore
;
95 /* Get the value of NAME within the environment. Essentially
96 a wrapper for ::getenv, but adding logging, and the possibility
97 of caching results. */
100 env_manager::get (const char *name
)
102 const char *result
= ::getenv (name
);
104 fprintf (stderr
, "env_manager::getenv (%s) -> %s\n", name
, result
);
108 /* Put the given KEY=VALUE entry STRING into the environment.
109 If the env_manager was initialized with CAN_RESTORE set, then
110 also record the old value of KEY within the environment, so that it
111 can be later restored. */
114 env_manager::xput (const char *string
)
117 fprintf (stderr
, "env_manager::xput (%s)\n", string
);
119 fnotice (stderr
, "%s\n", string
);
123 char *equals
= strchr (const_cast <char *> (string
), '=');
127 kv
.m_key
= xstrndup (string
, equals
- string
);
128 const char *cur_value
= ::getenv (kv
.m_key
);
130 fprintf (stderr
, "saving old value: %s\n",cur_value
);
131 kv
.m_value
= cur_value
? xstrdup (cur_value
) : NULL
;
132 m_keys
.safe_push (kv
);
135 ::putenv (CONST_CAST (char *, string
));
138 /* Undo any xputenv changes made since last restore.
139 Can only be called if the env_manager was initialized with
140 CAN_RESTORE enabled. */
143 env_manager::restore ()
148 gcc_assert (m_can_restore
);
150 FOR_EACH_VEC_ELT_REVERSE (m_keys
, i
, item
)
153 printf ("restoring saved key: %s value: %s\n", item
->m_key
, item
->m_value
);
155 ::setenv (item
->m_key
, item
->m_value
, 1);
157 ::unsetenv (item
->m_key
);
159 free (item
->m_value
);
165 /* Forbid other uses of getenv and putenv. */
166 #if (GCC_VERSION >= 3000)
167 #pragma GCC poison getenv putenv
172 /* By default there is no special suffix for target executables. */
173 /* FIXME: when autoconf is fixed, remove the host check - dj */
174 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
175 #define HAVE_TARGET_EXECUTABLE_SUFFIX
178 /* By default there is no special suffix for host executables. */
179 #ifdef HOST_EXECUTABLE_SUFFIX
180 #define HAVE_HOST_EXECUTABLE_SUFFIX
182 #define HOST_EXECUTABLE_SUFFIX ""
185 /* By default, the suffix for target object files is ".o". */
186 #ifdef TARGET_OBJECT_SUFFIX
187 #define HAVE_TARGET_OBJECT_SUFFIX
189 #define TARGET_OBJECT_SUFFIX ".o"
192 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
194 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
195 #ifndef LIBRARY_PATH_ENV
196 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
199 /* If a stage of compilation returns an exit status >= 1,
200 compilation of that file ceases. */
202 #define MIN_FATAL_STATUS 1
204 /* Flag set by cppspec.c to 1. */
207 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
208 static bool at_file_supplied
;
210 /* Definition of string containing the arguments given to configure. */
211 #include "configargs.h"
213 /* Flag saying to print the command line options understood by gcc and its
216 static int print_help_list
;
218 /* Flag saying to print the version of gcc and its sub-processes. */
220 static int print_version
;
222 /* Flag indicating whether we should ONLY print the command and
223 arguments (like verbose_flag) without executing the command.
224 Displayed arguments are quoted so that the generated command
225 line is suitable for execution. This is intended for use in
226 shell scripts to capture the driver-generated command line. */
227 static int verbose_only_flag
;
229 /* Flag indicating how to print command line options of sub-processes. */
231 static int print_subprocess_help
;
233 /* Linker suffix passed to -fuse-ld=... */
234 static const char *use_ld
;
236 /* Whether we should report subprocess execution times to a file. */
238 FILE *report_times_to_file
= NULL
;
240 /* Nonzero means place this string before uses of /, so that include
241 and library files can be found in an alternate location. */
243 #ifdef TARGET_SYSTEM_ROOT
244 #define DEFAULT_TARGET_SYSTEM_ROOT (TARGET_SYSTEM_ROOT)
246 #define DEFAULT_TARGET_SYSTEM_ROOT (0)
248 static const char *target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
250 /* Nonzero means pass the updated target_system_root to the compiler. */
252 static int target_system_root_changed
;
254 /* Nonzero means append this string to target_system_root. */
256 static const char *target_sysroot_suffix
= 0;
258 /* Nonzero means append this string to target_system_root for headers. */
260 static const char *target_sysroot_hdrs_suffix
= 0;
262 /* Nonzero means write "temp" files in source directory
263 and use the source file's name in them, and don't delete them. */
265 static enum save_temps
{
266 SAVE_TEMPS_NONE
, /* no -save-temps */
267 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
268 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
271 /* Output file to use to get the object directory for -save-temps=obj */
272 static char *save_temps_prefix
= 0;
273 static size_t save_temps_length
= 0;
275 /* The compiler version. */
277 static const char *compiler_version
;
279 /* The target version. */
281 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
283 /* The target machine. */
285 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
286 static const char *spec_host_machine
= DEFAULT_REAL_TARGET_MACHINE
;
288 /* List of offload targets. Separated by colon. Empty string for
289 -foffload=disable. */
291 static char *offload_targets
= NULL
;
293 /* Nonzero if cross-compiling.
294 When -b is used, the value comes from the `specs' file. */
296 #ifdef CROSS_DIRECTORY_STRUCTURE
297 static const char *cross_compile
= "1";
299 static const char *cross_compile
= "0";
302 /* Greatest exit code of sub-processes that has been encountered up to
304 static int greatest_status
= 1;
306 /* This is the obstack which we use to allocate many strings. */
308 static struct obstack obstack
;
310 /* This is the obstack to build an environment variable to pass to
311 collect2 that describes all of the relevant switches of what to
312 pass the compiler in building the list of pointers to constructors
315 static struct obstack collect_obstack
;
317 /* Forward declaration for prototypes. */
321 static void init_spec (void);
322 static void store_arg (const char *, int, int);
323 static void insert_wrapper (const char *);
324 static char *load_specs (const char *);
325 static void read_specs (const char *, bool, bool);
326 static void set_spec (const char *, const char *, bool);
327 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
328 static char *build_search_list (const struct path_prefix
*, const char *,
330 static void xputenv (const char *);
331 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
333 static int access_check (const char *, int);
334 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
335 static void add_prefix (struct path_prefix
*, const char *, const char *,
337 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
338 const char *, int, int, int);
339 static char *skip_whitespace (char *);
340 static void delete_if_ordinary (const char *);
341 static void delete_temp_files (void);
342 static void delete_failure_queue (void);
343 static void clear_failure_queue (void);
344 static int check_live_switch (int, int);
345 static const char *handle_braces (const char *);
346 static inline bool input_suffix_matches (const char *, const char *);
347 static inline bool switch_matches (const char *, const char *, int);
348 static inline void mark_matching_switches (const char *, const char *, int);
349 static inline void process_marked_switches (void);
350 static const char *process_brace_body (const char *, const char *, const char *, int, int);
351 static const struct spec_function
*lookup_spec_function (const char *);
352 static const char *eval_spec_function (const char *, const char *);
353 static const char *handle_spec_function (const char *, bool *);
354 static char *save_string (const char *, int);
355 static void set_collect_gcc_options (void);
356 static int do_spec_1 (const char *, int, const char *);
357 static int do_spec_2 (const char *);
358 static void do_option_spec (const char *, const char *);
359 static void do_self_spec (const char *);
360 static const char *find_file (const char *);
361 static int is_directory (const char *, bool);
362 static const char *validate_switches (const char *, bool);
363 static void validate_all_switches (void);
364 static inline void validate_switches_from_spec (const char *, bool);
365 static void give_switch (int, int);
366 static int default_arg (const char *, int);
367 static void set_multilib_dir (void);
368 static void print_multilib_info (void);
369 static void perror_with_name (const char *);
370 static void display_help (void);
371 static void add_preprocessor_option (const char *, int);
372 static void add_assembler_option (const char *, int);
373 static void add_linker_option (const char *, int);
374 static void process_command (unsigned int, struct cl_decoded_option
*);
375 static int execute (void);
376 static void alloc_args (void);
377 static void clear_args (void);
378 static void fatal_signal (int);
379 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
380 static void init_gcc_specs (struct obstack
*, const char *, const char *,
383 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
384 static const char *convert_filename (const char *, int, int);
387 static void try_generate_repro (const char **argv
);
388 static const char *getenv_spec_function (int, const char **);
389 static const char *if_exists_spec_function (int, const char **);
390 static const char *if_exists_else_spec_function (int, const char **);
391 static const char *sanitize_spec_function (int, const char **);
392 static const char *replace_outfile_spec_function (int, const char **);
393 static const char *remove_outfile_spec_function (int, const char **);
394 static const char *version_compare_spec_function (int, const char **);
395 static const char *include_spec_function (int, const char **);
396 static const char *find_file_spec_function (int, const char **);
397 static const char *find_plugindir_spec_function (int, const char **);
398 static const char *print_asm_header_spec_function (int, const char **);
399 static const char *compare_debug_dump_opt_spec_function (int, const char **);
400 static const char *compare_debug_self_opt_spec_function (int, const char **);
401 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
402 static const char *pass_through_libs_spec_func (int, const char **);
403 static const char *replace_extension_spec_func (int, const char **);
404 static const char *greater_than_spec_func (int, const char **);
405 static const char *debug_level_greater_than_spec_func (int, const char **);
406 static char *convert_white_space (char *);
408 /* The Specs Language
410 Specs are strings containing lines, each of which (if not blank)
411 is made up of a program name, and arguments separated by spaces.
412 The program name must be exact and start from root, since no path
413 is searched and it is unreliable to depend on the current working directory.
414 Redirection of input or output is not supported; the subprograms must
415 accept filenames saying what files to read and write.
417 In addition, the specs can contain %-sequences to substitute variable text
418 or for conditional text. Here is a table of all defined %-sequences.
419 Note that spaces are not generated automatically around the results of
420 expanding these sequences; therefore, you can concatenate them together
421 or with constant text in a single argument.
423 %% substitute one % into the program name or argument.
424 %i substitute the name of the input file being processed.
425 %b substitute the basename of the input file being processed.
426 This is the substring up to (and not including) the last period
427 and not including the directory unless -save-temps was specified
428 to put temporaries in a different location.
429 %B same as %b, but include the file suffix (text after the last period).
431 substitute a file name that has suffix SUFFIX and is chosen
432 once per compilation, and mark the argument a la %d. To reduce
433 exposure to denial-of-service attacks, the file name is now
434 chosen in a way that is hard to predict even when previously
435 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
436 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
437 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
438 had been pre-processed. Previously, %g was simply substituted
439 with a file name chosen once per compilation, without regard
440 to any appended suffix (which was therefore treated just like
441 ordinary text), making such attacks more likely to succeed.
443 like %g, but if -pipe is in effect, expands simply to "-".
445 like %g, but if -pipe is in effect, expands to nothing. (We have both
446 %| and %m to accommodate differences between system assemblers; see
447 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
449 like %g, but generates a new temporary file name even if %uSUFFIX
452 substitutes the last file name generated with %uSUFFIX, generating a
453 new one if there is no such last file name. In the absence of any
454 %uSUFFIX, this is just like %gSUFFIX, except they don't share
455 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
456 would involve the generation of two distinct file names, one
457 for each `%g.s' and another for each `%U.s'. Previously, %U was
458 simply substituted with a file name chosen for the previous %u,
459 without regard to any appended suffix.
461 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
462 writable, and if save-temps is off; otherwise, substitute the name
463 of a temporary file, just like %u. This temporary file is not
464 meant for communication between processes, but rather as a junk
467 substitutes .SUFFIX for the suffixes of a matched switch's args when
468 it is subsequently output with %*. SUFFIX is terminated by the next
470 %d marks the argument containing or following the %d as a
471 temporary file name, so that file will be deleted if GCC exits
472 successfully. Unlike %g, this contributes no text to the argument.
473 %w marks the argument containing or following the %w as the
474 "output file" of this compilation. This puts the argument
475 into the sequence of arguments that %o will substitute later.
476 %V indicates that this compilation produces no "output file".
478 like %{...} but mark last argument supplied within
479 as a file to be deleted on failure.
480 %o substitutes the names of all the output files, with spaces
481 automatically placed around them. You should write spaces
482 around the %o as well or the results are undefined.
483 %o is for use in the specs for running the linker.
484 Input files whose names have no recognized suffix are not compiled
485 at all, but they are included among the output files, so they will
487 %O substitutes the suffix for object files. Note that this is
488 handled specially when it immediately follows %g, %u, or %U
489 (with or without a suffix argument) because of the need for
490 those to form complete file names. The handling is such that
491 %O is treated exactly as if it had already been substituted,
492 except that %g, %u, and %U do not currently support additional
493 SUFFIX characters following %O as they would following, for
495 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
496 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
497 and -B options) and -imultilib as necessary.
498 %s current argument is the name of a library or startup file of some sort.
499 Search for that file in a standard list of directories
500 and substitute the full name found.
501 %eSTR Print STR as an error message. STR is terminated by a newline.
502 Use this when inconsistent options are detected.
503 %nSTR Print STR as a notice. STR is terminated by a newline.
504 %x{OPTION} Accumulate an option for %X.
505 %X Output the accumulated linker options specified by compilations.
506 %Y Output the accumulated assembler options specified by compilations.
507 %Z Output the accumulated preprocessor options specified by compilations.
508 %a process ASM_SPEC as a spec.
509 This allows config.h to specify part of the spec for running as.
510 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
511 used here. This can be used to run a post-processor after the
512 assembler has done its job.
513 %D Dump out a -L option for each directory in startfile_prefixes.
514 If multilib_dir is set, extra entries are generated with it affixed.
515 %l process LINK_SPEC as a spec.
516 %L process LIB_SPEC as a spec.
517 %M Output multilib_os_dir.
518 %G process LIBGCC_SPEC as a spec.
519 %R Output the concatenation of target_system_root and
520 target_sysroot_suffix.
521 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
522 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
523 %C process CPP_SPEC as a spec.
524 %1 process CC1_SPEC as a spec.
525 %2 process CC1PLUS_SPEC as a spec.
526 %* substitute the variable part of a matched option. (See below.)
527 Note that each comma in the substituted string is replaced by
528 a single space. A space is appended after the last substition
529 unless there is more text in current sequence.
530 %<S remove all occurrences of -S from the command line.
531 Note - this command is position dependent. % commands in the
532 spec string before this one will see -S, % commands in the
533 spec string after this one will not.
534 %>S Similar to "%<S", but keep it in the GCC command line.
535 %<S* remove all occurrences of all switches beginning with -S from the
538 Call the named function FUNCTION, passing it ARGS. ARGS is
539 first processed as a nested spec string, then split into an
540 argument vector in the usual fashion. The function returns
541 a string which is processed as if it had appeared literally
542 as part of the current spec.
543 %{S} substitutes the -S switch, if that switch was given to GCC.
544 If that switch was not specified, this substitutes nothing.
545 Here S is a metasyntactic variable.
546 %{S*} substitutes all the switches specified to GCC whose names start
547 with -S. This is used for -o, -I, etc; switches that take
548 arguments. GCC considers `-o foo' as being one switch whose
549 name starts with `o'. %{o*} would substitute this text,
550 including the space; thus, two arguments would be generated.
551 %{S*&T*} likewise, but preserve order of S and T options (the order
552 of S and T in the spec is not significant). Can be any number
553 of ampersand-separated variables; for each the wild card is
554 optional. Useful for CPP as %{D*&U*&A*}.
556 %{S:X} substitutes X, if the -S switch was given to GCC.
557 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
558 %{S*:X} substitutes X if one or more switches whose names start
559 with -S was given to GCC. Normally X is substituted only
560 once, no matter how many such switches appeared. However,
561 if %* appears somewhere in X, then X will be substituted
562 once for each matching switch, with the %* replaced by the
563 part of that switch that matched the '*'. A space will be
564 appended after the last substition unless there is more
565 text in current sequence.
566 %{.S:X} substitutes X, if processing a file with suffix S.
567 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
568 %{,S:X} substitutes X, if processing a file which will use spec S.
569 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
571 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
572 combined with '!', '.', ',', and '*' as above binding stronger
574 If %* appears in X, all of the alternatives must be starred, and
575 only the first matching alternative is substituted.
576 %{%:function(args):X}
577 Call function named FUNCTION with args ARGS. If the function
578 returns non-NULL, then X is substituted, if it returns
579 NULL, it isn't substituted.
580 %{S:X; if S was given to GCC, substitutes X;
581 T:Y; else if T was given to GCC, substitutes Y;
582 :D} else substitutes D. There can be as many clauses as you need.
583 This may be combined with '.', '!', ',', '|', and '*' as above.
585 %(Spec) processes a specification defined in a specs file as *Spec:
587 The switch matching text S in a %{S}, %{S:X}, or similar construct can use
588 a backslash to ignore the special meaning of the character following it,
589 thus allowing literal matching of a character that is otherwise specially
590 treated. For example, %{std=iso9899\:1999:X} substitutes X if the
591 -std=iso9899:1999 option is given.
593 The conditional text X in a %{S:X} or similar construct may contain
594 other nested % constructs or spaces, or even newlines. They are
595 processed as usual, as described above. Trailing white space in X is
596 ignored. White space may also appear anywhere on the left side of the
597 colon in these constructs, except between . or * and the corresponding
600 The -O, -f, -g, -m, and -W switches are handled specifically in these
601 constructs. If another value of -O or the negated form of a -f, -m, or
602 -W switch is found later in the command line, the earlier switch
603 value is ignored, except with {S*} where S is just one letter; this
604 passes all matching options.
606 The character | at the beginning of the predicate text is used to indicate
607 that a command should be piped to the following command, but only if -pipe
610 Note that it is built into GCC which switches take arguments and which
611 do not. You might think it would be useful to generalize this to
612 allow each compiler's spec to say which switches take arguments. But
613 this cannot be done in a consistent fashion. GCC cannot even decide
614 which input files have been specified without knowing which switches
615 take arguments, and it must know which input files to compile in order
616 to tell which compilers to run.
618 GCC also knows implicitly that arguments starting in `-l' are to be
619 treated as compiler output files, and passed to the linker in their
620 proper position among the other output files. */
622 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
624 /* config.h can define ASM_SPEC to provide extra args to the assembler
625 or extra switch-translations. */
630 /* config.h can define ASM_FINAL_SPEC to run a post processor after
631 the assembler has run. */
632 #ifndef ASM_FINAL_SPEC
633 #define ASM_FINAL_SPEC \
635 objcopy --extract-dwo \
636 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
637 %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\
638 objcopy --strip-dwo \
639 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
643 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
644 or extra switch-translations. */
649 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
650 or extra switch-translations. */
655 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
656 or extra switch-translations. */
658 #define CC1PLUS_SPEC ""
661 /* config.h can define LINK_SPEC to provide extra args to the linker
662 or extra switch-translations. */
667 /* config.h can define LIB_SPEC to override the default libraries. */
669 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
672 /* When using -fsplit-stack we need to wrap pthread_create, in order
673 to initialize the stack guard. We always use wrapping, rather than
674 shared library ordering, and we keep the wrapper function in
675 libgcc. This is not yet a real spec, though it could become one;
676 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
677 only works with GNU ld and gold. */
678 #ifdef HAVE_GOLD_NON_DEFAULT_SPLIT_STACK
679 #define STACK_SPLIT_SPEC " %{fsplit-stack: -fuse-ld=gold --wrap=pthread_create}"
681 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
685 #define STATIC_LIBASAN_LIBS \
686 " %{static-libasan:%:include(libsanitizer.spec)%(link_libasan)}"
687 #ifdef LIBASAN_EARLY_SPEC
688 #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
689 #elif defined(HAVE_LD_STATIC_DYNAMIC)
690 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
691 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
694 #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
698 #ifndef LIBASAN_EARLY_SPEC
699 #define LIBASAN_EARLY_SPEC ""
703 #define STATIC_LIBTSAN_LIBS \
704 " %{static-libtsan:%:include(libsanitizer.spec)%(link_libtsan)}"
705 #ifdef LIBTSAN_EARLY_SPEC
706 #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
707 #elif defined(HAVE_LD_STATIC_DYNAMIC)
708 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
709 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
712 #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
716 #ifndef LIBTSAN_EARLY_SPEC
717 #define LIBTSAN_EARLY_SPEC ""
721 #define STATIC_LIBLSAN_LIBS \
722 " %{static-liblsan:%:include(libsanitizer.spec)%(link_liblsan)}"
723 #ifdef LIBLSAN_EARLY_SPEC
724 #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
725 #elif defined(HAVE_LD_STATIC_DYNAMIC)
726 #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
727 "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
730 #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
734 #ifndef LIBLSAN_EARLY_SPEC
735 #define LIBLSAN_EARLY_SPEC ""
738 #ifndef LIBUBSAN_SPEC
739 #define STATIC_LIBUBSAN_LIBS \
740 " %{static-libubsan:%:include(libsanitizer.spec)%(link_libubsan)}"
741 #ifdef HAVE_LD_STATIC_DYNAMIC
742 #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
743 "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
746 #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
750 /* Linker options for compressed debug sections. */
751 #if HAVE_LD_COMPRESS_DEBUG == 0
752 /* No linker support. */
753 #define LINK_COMPRESS_DEBUG_SPEC \
754 " %{gz*:%e-gz is not supported in this configuration} "
755 #elif HAVE_LD_COMPRESS_DEBUG == 1
756 /* GNU style on input, GNU ld options. Reject, not useful. */
757 #define LINK_COMPRESS_DEBUG_SPEC \
758 " %{gz*:%e-gz is not supported in this configuration} "
759 #elif HAVE_LD_COMPRESS_DEBUG == 2
760 /* GNU style, GNU gold options. */
761 #define LINK_COMPRESS_DEBUG_SPEC \
762 " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
763 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
764 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
765 #elif HAVE_LD_COMPRESS_DEBUG == 3
766 /* ELF gABI style. */
767 #define LINK_COMPRESS_DEBUG_SPEC \
768 " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
769 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
770 " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
772 #error Unknown value for HAVE_LD_COMPRESS_DEBUG.
775 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
778 #if defined(REAL_LIBGCC_SPEC)
779 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
780 #elif defined(LINK_LIBGCC_SPECIAL_1)
781 /* Have gcc do the search for libgcc.a. */
782 #define LIBGCC_SPEC "libgcc.a%s"
784 #define LIBGCC_SPEC "-lgcc"
788 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
789 #ifndef STARTFILE_SPEC
790 #define STARTFILE_SPEC \
791 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
794 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
796 #define ENDFILE_SPEC ""
800 #define LINKER_NAME "collect2"
803 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
804 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
809 /* Assembler options for compressed debug sections. */
810 #if HAVE_LD_COMPRESS_DEBUG < 2
811 /* Reject if the linker cannot write compressed debug sections. */
812 #define ASM_COMPRESS_DEBUG_SPEC \
813 " %{gz*:%e-gz is not supported in this configuration} "
814 #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */
815 #if HAVE_AS_COMPRESS_DEBUG == 0
816 /* No assembler support. Ignore silently. */
817 #define ASM_COMPRESS_DEBUG_SPEC \
819 #elif HAVE_AS_COMPRESS_DEBUG == 1
820 /* GNU style, GNU as options. */
821 #define ASM_COMPRESS_DEBUG_SPEC \
822 " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \
823 " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \
824 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
825 #elif HAVE_AS_COMPRESS_DEBUG == 2
826 /* ELF gABI style. */
827 #define ASM_COMPRESS_DEBUG_SPEC \
828 " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
829 " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
830 " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
832 #error Unknown value for HAVE_AS_COMPRESS_DEBUG.
834 #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */
836 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
838 #ifndef ASM_DEBUG_SPEC
839 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
840 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
841 # define ASM_DEBUG_SPEC \
842 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
843 ? "%{%:debug-level-gt(0):" \
844 "%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \
845 : "%{%:debug-level-gt(0):" \
846 "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
848 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
849 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gstabs}}" ASM_MAP
851 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
852 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gdwarf2}}" ASM_MAP
856 #ifndef ASM_DEBUG_SPEC
857 # define ASM_DEBUG_SPEC ""
860 /* Here is the spec for running the linker, after compiling all files. */
862 /* This is overridable by the target in case they need to specify the
863 -lgcc and -lc order specially, yet not require them to override all
864 of LINK_COMMAND_SPEC. */
865 #ifndef LINK_GCC_C_SEQUENCE_SPEC
866 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
869 #ifndef LINK_SSP_SPEC
870 #ifdef TARGET_LIBC_PROVIDES_SSP
871 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
872 "|fstack-protector-strong|fstack-protector-explicit:}"
874 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
875 "|fstack-protector-strong|fstack-protector-explicit" \
876 ":-lssp_nonshared -lssp}"
880 #ifdef ENABLE_DEFAULT_PIE
881 #define NO_PIE_SPEC "no-pie|static"
882 #define PIE_SPEC NO_PIE_SPEC "|r|shared:;"
883 #define NO_FPIE1_SPEC "fno-pie"
884 #define FPIE1_SPEC NO_FPIE1_SPEC ":;"
885 #define NO_FPIE2_SPEC "fno-PIE"
886 #define FPIE2_SPEC NO_FPIE2_SPEC ":;"
887 #define NO_FPIE_SPEC NO_FPIE1_SPEC "|" NO_FPIE2_SPEC
888 #define FPIE_SPEC NO_FPIE_SPEC ":;"
889 #define NO_FPIC1_SPEC "fno-pic"
890 #define FPIC1_SPEC NO_FPIC1_SPEC ":;"
891 #define NO_FPIC2_SPEC "fno-PIC"
892 #define FPIC2_SPEC NO_FPIC2_SPEC ":;"
893 #define NO_FPIC_SPEC NO_FPIC1_SPEC "|" NO_FPIC2_SPEC
894 #define FPIC_SPEC NO_FPIC_SPEC ":;"
895 #define NO_FPIE1_AND_FPIC1_SPEC NO_FPIE1_SPEC "|" NO_FPIC1_SPEC
896 #define FPIE1_OR_FPIC1_SPEC NO_FPIE1_AND_FPIC1_SPEC ":;"
897 #define NO_FPIE2_AND_FPIC2_SPEC NO_FPIE2_SPEC "|" NO_FPIC2_SPEC
898 #define FPIE2_OR_FPIC2_SPEC NO_FPIE2_AND_FPIC2_SPEC ":;"
899 #define NO_FPIE_AND_FPIC_SPEC NO_FPIE_SPEC "|" NO_FPIC_SPEC
900 #define FPIE_OR_FPIC_SPEC NO_FPIE_AND_FPIC_SPEC ":;"
902 #define PIE_SPEC "pie"
903 #define NO_PIE_SPEC PIE_SPEC "|r|shared:;"
904 #define FPIE1_SPEC "fpie"
905 #define NO_FPIE1_SPEC FPIE1_SPEC ":;"
906 #define FPIE2_SPEC "fPIE"
907 #define NO_FPIE2_SPEC FPIE2_SPEC ":;"
908 #define FPIE_SPEC FPIE1_SPEC "|" FPIE2_SPEC
909 #define NO_FPIE_SPEC FPIE_SPEC ":;"
910 #define FPIC1_SPEC "fpic"
911 #define NO_FPIC1_SPEC FPIC1_SPEC ":;"
912 #define FPIC2_SPEC "fPIC"
913 #define NO_FPIC2_SPEC FPIC2_SPEC ":;"
914 #define FPIC_SPEC FPIC1_SPEC "|" FPIC2_SPEC
915 #define NO_FPIC_SPEC FPIC_SPEC ":;"
916 #define FPIE1_OR_FPIC1_SPEC FPIE1_SPEC "|" FPIC1_SPEC
917 #define NO_FPIE1_AND_FPIC1_SPEC FPIE1_OR_FPIC1_SPEC ":;"
918 #define FPIE2_OR_FPIC2_SPEC FPIE2_SPEC "|" FPIC2_SPEC
919 #define NO_FPIE2_AND_FPIC2_SPEC FPIE1_OR_FPIC2_SPEC ":;"
920 #define FPIE_OR_FPIC_SPEC FPIE_SPEC "|" FPIC_SPEC
921 #define NO_FPIE_AND_FPIC_SPEC FPIE_OR_FPIC_SPEC ":;"
924 #ifndef LINK_PIE_SPEC
927 #define LD_PIE_SPEC "-pie"
930 #define LD_PIE_SPEC ""
932 #define LINK_PIE_SPEC "%{no-pie:} " "%{" PIE_SPEC ":" LD_PIE_SPEC "} "
935 #ifndef LINK_BUILDID_SPEC
936 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
937 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
941 /* Conditional to test whether the LTO plugin is used or not.
942 FIXME: For slim LTO we will need to enable plugin unconditionally. This
943 still cause problems with PLUGIN_LD != LD and when plugin is built but
944 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
945 plugin only when LTO is enabled. We still honor explicit
946 -fuse-linker-plugin if the linker used understands -plugin. */
948 /* The linker has some plugin support. */
949 #if HAVE_LTO_PLUGIN > 0
950 /* The linker used has full plugin support, use LTO plugin by default. */
951 #if HAVE_LTO_PLUGIN == 2
952 #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
953 #define PLUGIN_COND_CLOSE "}"
955 /* The linker used has limited plugin support, use LTO plugin with explicit
956 -fuse-linker-plugin. */
957 #define PLUGIN_COND "fuse-linker-plugin"
958 #define PLUGIN_COND_CLOSE ""
960 #define LINK_PLUGIN_SPEC \
962 -plugin %(linker_plugin_file) \
963 -plugin-opt=%(lto_wrapper) \
964 -plugin-opt=-fresolution=%u.res \
965 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
968 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
969 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
970 %e-fuse-linker-plugin is not supported in this configuration}"
973 /* Linker command line options for -fsanitize= early on the command line. */
974 #ifndef SANITIZER_EARLY_SPEC
975 #define SANITIZER_EARLY_SPEC "\
976 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
977 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
978 %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}"
981 /* Linker command line options for -fsanitize= late on the command line. */
982 #ifndef SANITIZER_SPEC
983 #define SANITIZER_SPEC "\
984 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
985 %{static:%ecannot specify -static with -fsanitize=address}}\
986 %{%:sanitize(thread):" LIBTSAN_SPEC "\
987 %{static:%ecannot specify -static with -fsanitize=thread}}\
988 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
989 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}"
992 #ifndef POST_LINK_SPEC
993 #define POST_LINK_SPEC ""
996 /* This is the spec to use, once the code for creating the vtable
997 verification runtime library, libvtv.so, has been created. Currently
998 the vtable verification runtime functions are in libstdc++, so we use
999 the spec just below this one. */
1000 #ifndef VTABLE_VERIFICATION_SPEC
1001 #if ENABLE_VTABLE_VERIFY
1002 #define VTABLE_VERIFICATION_SPEC "\
1003 %{!nostdlib:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
1004 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}"
1006 #define VTABLE_VERIFICATION_SPEC "\
1007 %{fvtable-verify=none:} \
1008 %{fvtable-verify=std: \
1009 %e-fvtable-verify=std is not supported in this configuration} \
1010 %{fvtable-verify=preinit: \
1011 %e-fvtable-verify=preinit is not supported in this configuration}"
1016 #define CHKP_SPEC ""
1019 /* -u* was put back because both BSD and SysV seem to support it. */
1020 /* %{static:} simply prevents an error message if the target machine
1021 doesn't handle -static. */
1022 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
1023 scripts which exist in user specified directories, or in standard
1025 /* We pass any -flto flags on to the linker, which is expected
1026 to understand them. In practice, this means it had better be collect2. */
1027 /* %{e*} includes -export-dynamic; see comment in common.opt. */
1028 #ifndef LINK_COMMAND_SPEC
1029 #define LINK_COMMAND_SPEC "\
1030 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
1033 "%{flto|flto=*:%<fcompare-debug*} \
1034 %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
1035 "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
1036 "%X %{o*} %{e*} %{N} %{n} %{r}\
1037 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} \
1038 %{static:} %{L*} %(mfwrap) %(link_libgcc) " \
1039 VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o " CHKP_SPEC " \
1040 %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
1041 %:include(libgomp.spec)%(link_gomp)}\
1042 %{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}\
1043 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
1044 %(mflib) " STACK_SPLIT_SPEC "\
1045 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
1046 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
1047 %{!nostdlib:%{!nostartfiles:%E}} %{T*} \n%(post_link) }}}}}}"
1050 #ifndef LINK_LIBGCC_SPEC
1051 /* Generate -L options for startfile prefix list. */
1052 # define LINK_LIBGCC_SPEC "%D"
1055 #ifndef STARTFILE_PREFIX_SPEC
1056 # define STARTFILE_PREFIX_SPEC ""
1059 #ifndef SYSROOT_SPEC
1060 # define SYSROOT_SPEC "--sysroot=%R"
1063 #ifndef SYSROOT_SUFFIX_SPEC
1064 # define SYSROOT_SUFFIX_SPEC ""
1067 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
1068 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
1071 static const char *asm_debug
= ASM_DEBUG_SPEC
;
1072 static const char *cpp_spec
= CPP_SPEC
;
1073 static const char *cc1_spec
= CC1_SPEC
;
1074 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
1075 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
1076 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
1077 static const char *asm_spec
= ASM_SPEC
;
1078 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
1079 static const char *link_spec
= LINK_SPEC
;
1080 static const char *lib_spec
= LIB_SPEC
;
1081 static const char *link_gomp_spec
= "";
1082 static const char *libgcc_spec
= LIBGCC_SPEC
;
1083 static const char *endfile_spec
= ENDFILE_SPEC
;
1084 static const char *startfile_spec
= STARTFILE_SPEC
;
1085 static const char *linker_name_spec
= LINKER_NAME
;
1086 static const char *linker_plugin_file_spec
= "";
1087 static const char *lto_wrapper_spec
= "";
1088 static const char *lto_gcc_spec
= "";
1089 static const char *post_link_spec
= POST_LINK_SPEC
;
1090 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
1091 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
1092 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
1093 static const char *sysroot_spec
= SYSROOT_SPEC
;
1094 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
1095 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
1096 static const char *self_spec
= "";
1098 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
1099 There should be no need to override these in target dependent files,
1100 but we need to copy them to the specs file so that newer versions
1101 of the GCC driver can correctly drive older tool chains with the
1102 appropriate -B options. */
1104 /* When cpplib handles traditional preprocessing, get rid of this, and
1105 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
1106 that we default the front end language better. */
1107 static const char *trad_capable_cpp
=
1108 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
1110 /* We don't wrap .d files in %W{} since a missing .d file, and
1111 therefore no dependency entry, confuses make into thinking a .o
1112 file that happens to exist is up-to-date. */
1113 static const char *cpp_unique_options
=
1114 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
1115 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
1116 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
1117 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
1118 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
1119 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
1120 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1121 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
1124 /* This contains cpp options which are common with cc1_options and are passed
1125 only when preprocessing only to avoid duplication. We pass the cc1 spec
1126 options to the preprocessor so that it the cc1 spec may manipulate
1127 options used to set target flags. Those special target flags settings may
1128 in turn cause preprocessor symbols to be defined specially. */
1129 static const char *cpp_options
=
1130 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
1131 %{f*} %{g*:%{%:debug-level-gt(0):%{g*}\
1132 %{!fno-working-directory:-fworking-directory}}} %{O*}\
1133 %{undef} %{save-temps*:-fpch-preprocess}";
1135 /* This contains cpp options which are not passed when the preprocessor
1136 output will be used by another program. */
1137 static const char *cpp_debug_options
= "%{d*}";
1139 /* NB: This is shared amongst all front-ends, except for Ada. */
1140 static const char *cc1_options
=
1141 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
1142 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1143 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
1144 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
1145 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
1146 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
1147 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
1148 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
1149 %{-target-help:--target-help}\
1150 %{-version:--version}\
1151 %{-help=*:--help=%*}\
1152 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
1153 %{fsyntax-only:-o %j} %{-param*}\
1154 %{coverage:-fprofile-arcs -ftest-coverage}\
1155 %{fprofile-arcs|fprofile-generate*|coverage:\
1156 %{!fprofile-update=single:\
1157 %{pthread:-fprofile-update=prefer-atomic}}}";
1159 static const char *asm_options
=
1160 "%{-target-help:%:print-asm-header()} "
1162 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
1163 to the assembler equivalents. */
1164 "%{v} %{w:-W} %{I*} "
1166 ASM_COMPRESS_DEBUG_SPEC
1167 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
1169 static const char *invoke_as
=
1170 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1172 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1173 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
1177 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1178 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
1182 /* Some compilers have limits on line lengths, and the multilib_select
1183 and/or multilib_matches strings can be very long, so we build them at
1185 static struct obstack multilib_obstack
;
1186 static const char *multilib_select
;
1187 static const char *multilib_matches
;
1188 static const char *multilib_defaults
;
1189 static const char *multilib_exclusions
;
1190 static const char *multilib_reuse
;
1192 /* Check whether a particular argument is a default argument. */
1194 #ifndef MULTILIB_DEFAULTS
1195 #define MULTILIB_DEFAULTS { "" }
1198 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
1200 #ifndef DRIVER_SELF_SPECS
1201 #define DRIVER_SELF_SPECS ""
1204 /* Linking to libgomp implies pthreads. This is particularly important
1205 for targets that use different start files and suchlike. */
1206 #ifndef GOMP_SELF_SPECS
1207 #define GOMP_SELF_SPECS \
1208 "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \
1212 /* Likewise for -fgnu-tm. */
1213 #ifndef GTM_SELF_SPECS
1214 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1217 /* Likewise for -fcilkplus. */
1218 #ifndef CILK_SELF_SPECS
1219 #define CILK_SELF_SPECS "%{fcilkplus: -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
,
1228 #ifndef OPTION_DEFAULT_SPECS
1229 #define OPTION_DEFAULT_SPECS { "", "" }
1238 static const struct default_spec
1239 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1243 struct user_specs
*next
;
1244 const char *filename
;
1247 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1250 /* Record the mapping from file suffixes for compilation specs. */
1254 const char *suffix
; /* Use this compiler for input files
1255 whose names end in this suffix. */
1257 const char *spec
; /* To use this compiler, run this spec. */
1259 const char *cpp_spec
; /* If non-NULL, substitute this spec
1260 for `%C', rather than the usual
1262 int combinable
; /* If nonzero, compiler can deal with
1263 multiple source files at once (IMA). */
1264 int needs_preprocessing
; /* If nonzero, source files need to
1265 be run through a preprocessor. */
1268 /* Pointer to a vector of `struct compiler' that gives the spec for
1269 compiling a file, based on its suffix.
1270 A file that does not end in any of these suffixes will be passed
1271 unchanged to the loader and nothing else will be done to it.
1273 An entry containing two 0s is used to terminate the vector.
1275 If multiple entries match a file, the last matching one is used. */
1277 static struct compiler
*compilers
;
1279 /* Number of entries in `compilers', not counting the null terminator. */
1281 static int n_compilers
;
1283 /* The default list of file name suffixes and their compilation specs. */
1285 static const struct compiler default_compilers
[] =
1287 /* Add lists of suffixes of known languages here. If those languages
1288 were not present when we built the driver, we will hit these copies
1289 and be given a more meaningful error than "file not used since
1290 linking is not done". */
1291 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1292 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1293 {".mii", "#Objective-C++", 0, 0, 0},
1294 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1295 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1296 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1297 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1298 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1299 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1300 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1301 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1302 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1303 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1304 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1305 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1306 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1307 {".r", "#Ratfor", 0, 0, 0},
1308 {".go", "#Go", 0, 1, 0},
1309 /* 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 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1674 "%{!static:%{!static-libgcc:"
1675 #if USE_LD_AS_NEEDED
1676 "%{!shared-libgcc:",
1677 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1678 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1681 shared_name
, "%{!shared: ", static_name
, "}"
1685 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1686 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1690 "%{shared-libgcc:", shared_name
, "}"
1691 "%{!shared-libgcc:", static_name
, "}"
1694 "%{shared:", shared_name
, "}"
1699 obstack_grow (obstack
, buf
, strlen (buf
));
1702 #endif /* ENABLE_SHARED_LIBGCC */
1704 /* Initialize the specs lookup routines. */
1709 struct spec_list
*next
= (struct spec_list
*) 0;
1710 struct spec_list
*sl
= (struct spec_list
*) 0;
1714 return; /* Already initialized. */
1717 fnotice (stderr
, "Using built-in specs.\n");
1720 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1722 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1724 sl
= &extra_specs
[i
];
1725 sl
->name
= extra_specs_1
[i
].name
;
1726 sl
->ptr
= extra_specs_1
[i
].ptr
;
1728 sl
->name_len
= strlen (sl
->name
);
1729 sl
->ptr_spec
= &sl
->ptr
;
1730 gcc_assert (sl
->ptr_spec
!= NULL
);
1731 sl
->default_ptr
= sl
->ptr
;
1736 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1738 sl
= &static_specs
[i
];
1743 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1744 /* ??? If neither -shared-libgcc nor --static-libgcc was
1745 seen, then we should be making an educated guess. Some proposed
1746 heuristics for ELF include:
1748 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1749 program will be doing dynamic loading, which will likely
1750 need the shared libgcc.
1752 (2) If "-ldl", then it's also a fair bet that we're doing
1755 (3) For each ET_DYN we're linking against (either through -lfoo
1756 or /some/path/foo.so), check to see whether it or one of
1757 its dependencies depends on a shared libgcc.
1761 If the runtime is fixed to look for program headers instead
1762 of calling __register_frame_info at all, for each object,
1763 use the shared libgcc if any EH symbol referenced.
1765 If crtstuff is fixed to not invoke __register_frame_info
1766 automatically, for each object, use the shared libgcc if
1767 any non-empty unwind section found.
1769 Doing any of this probably requires invoking an external program to
1770 do the actual object file scanning. */
1772 const char *p
= libgcc_spec
;
1775 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1776 when given the proper command line arguments. */
1779 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1781 init_gcc_specs (&obstack
,
1783 #ifdef USE_LIBUNWIND_EXCEPTIONS
1789 #ifdef USE_LIBUNWIND_EXCEPTIONS
1790 # ifdef HAVE_LD_STATIC_DYNAMIC
1791 " %{!static:" LD_STATIC_OPTION
"} -lunwind"
1792 " %{!static:" LD_DYNAMIC_OPTION
"}"
1802 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1804 /* Ug. We don't know shared library extensions. Hope that
1805 systems that use this form don't do shared libraries. */
1806 init_gcc_specs (&obstack
,
1810 #ifdef USE_LIBUNWIND_EXCEPTIONS
1819 obstack_1grow (&obstack
, *p
);
1820 in_sep
= (*p
== ' ');
1825 obstack_1grow (&obstack
, '\0');
1826 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1829 #ifdef USE_AS_TRADITIONAL_FORMAT
1830 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1832 static const char tf
[] = "--traditional-format ";
1833 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1834 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1835 asm_spec
= XOBFINISH (&obstack
, const char *);
1839 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1840 defined LINKER_HASH_STYLE
1841 # ifdef LINK_BUILDID_SPEC
1842 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1843 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1845 # ifdef LINK_EH_SPEC
1846 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1847 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1849 # ifdef LINKER_HASH_STYLE
1850 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1853 static const char hash_style
[] = "--hash-style=";
1854 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1855 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1856 obstack_1grow (&obstack
, ' ');
1859 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1860 link_spec
= XOBFINISH (&obstack
, const char *);
1866 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1867 removed; If the spec starts with a + then SPEC is added to the end of the
1871 set_spec (const char *name
, const char *spec
, bool user_p
)
1873 struct spec_list
*sl
;
1874 const char *old_spec
;
1875 int name_len
= strlen (name
);
1878 /* If this is the first call, initialize the statically allocated specs. */
1881 struct spec_list
*next
= (struct spec_list
*) 0;
1882 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1884 sl
= &static_specs
[i
];
1891 /* See if the spec already exists. */
1892 for (sl
= specs
; sl
; sl
= sl
->next
)
1893 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1898 /* Not found - make it. */
1899 sl
= XNEW (struct spec_list
);
1900 sl
->name
= xstrdup (name
);
1901 sl
->name_len
= name_len
;
1902 sl
->ptr_spec
= &sl
->ptr
;
1904 *(sl
->ptr_spec
) = "";
1906 sl
->default_ptr
= NULL
;
1910 old_spec
= *(sl
->ptr_spec
);
1911 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1912 ? concat (old_spec
, spec
+ 1, NULL
)
1917 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1920 /* Free the old spec. */
1921 if (old_spec
&& sl
->alloc_p
)
1922 free (CONST_CAST (char *, old_spec
));
1924 sl
->user_p
= user_p
;
1928 /* Accumulate a command (program name and args), and run it. */
1930 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1932 /* Vector of pointers to arguments in the current line of specifications. */
1934 static vec
<const_char_p
> argbuf
;
1936 /* Were the options -c, -S or -E passed. */
1937 static int have_c
= 0;
1939 /* Was the option -o passed. */
1940 static int have_o
= 0;
1942 /* Was the option -E passed. */
1943 static int have_E
= 0;
1945 /* Pointer to output file name passed in with -o. */
1946 static const char *output_file
= 0;
1948 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1949 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1952 static struct temp_name
{
1953 const char *suffix
; /* suffix associated with the code. */
1954 int length
; /* strlen (suffix). */
1955 int unique
; /* Indicates whether %g or %u/%U was used. */
1956 const char *filename
; /* associated filename. */
1957 int filename_length
; /* strlen (filename). */
1958 struct temp_name
*next
;
1961 /* Number of commands executed so far. */
1963 static int execution_count
;
1965 /* Number of commands that exited with a signal. */
1967 static int signal_count
;
1969 /* Allocate the argument vector. */
1977 /* Clear out the vector of arguments (after a command is executed). */
1982 argbuf
.truncate (0);
1985 /* Add one argument to the vector at the end.
1986 This is done when a space is seen or at the end of the line.
1987 If DELETE_ALWAYS is nonzero, the arg is a filename
1988 and the file should be deleted eventually.
1989 If DELETE_FAILURE is nonzero, the arg is a filename
1990 and the file should be deleted if this compilation fails. */
1993 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1995 argbuf
.safe_push (arg
);
1997 if (delete_always
|| delete_failure
)
2000 /* If the temporary file we should delete is specified as
2001 part of a joined argument extract the filename. */
2003 && (p
= strrchr (arg
, '=')))
2005 record_temp_file (arg
, delete_always
, delete_failure
);
2009 /* Load specs from a file name named FILENAME, replacing occurrences of
2010 various different types of line-endings, \r\n, \n\r and just \r, with
2014 load_specs (const char *filename
)
2018 struct stat statbuf
;
2025 fnotice (stderr
, "Reading specs from %s\n", filename
);
2027 /* Open and stat the file. */
2028 desc
= open (filename
, O_RDONLY
, 0);
2030 pfatal_with_name (filename
);
2031 if (stat (filename
, &statbuf
) < 0)
2032 pfatal_with_name (filename
);
2034 /* Read contents of file into BUFFER. */
2035 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2036 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2038 pfatal_with_name (filename
);
2039 buffer
[readlen
] = 0;
2042 specs
= XNEWVEC (char, readlen
+ 1);
2044 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2050 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2052 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2066 /* Read compilation specs from a file named FILENAME,
2067 replacing the default ones.
2069 A suffix which starts with `*' is a definition for
2070 one of the machine-specific sub-specs. The "suffix" should be
2071 *asm, *cc1, *cpp, *link, *startfile, etc.
2072 The corresponding spec is stored in asm_spec, etc.,
2073 rather than in the `compilers' vector.
2075 Anything invalid in the file is a fatal error. */
2078 read_specs (const char *filename
, bool main_p
, bool user_p
)
2083 buffer
= load_specs (filename
);
2085 /* Scan BUFFER for specs, putting them in the vector. */
2091 char *in
, *out
, *p1
, *p2
, *p3
;
2093 /* Advance P in BUFFER to the next nonblank nocomment line. */
2094 p
= skip_whitespace (p
);
2098 /* Is this a special command that starts with '%'? */
2099 /* Don't allow this for the main specs file, since it would
2100 encourage people to overwrite it. */
2101 if (*p
== '%' && !main_p
)
2104 while (*p
&& *p
!= '\n')
2110 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2111 && (p1
[sizeof "%include" - 1] == ' '
2112 || p1
[sizeof "%include" - 1] == '\t'))
2116 p1
+= sizeof ("%include");
2117 while (*p1
== ' ' || *p1
== '\t')
2120 if (*p1
++ != '<' || p
[-2] != '>')
2121 fatal_error (input_location
,
2122 "specs %%include syntax malformed after "
2124 (long) (p1
- buffer
+ 1));
2127 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2128 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
2131 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2132 && (p1
[sizeof "%include_noerr" - 1] == ' '
2133 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2137 p1
+= sizeof "%include_noerr";
2138 while (*p1
== ' ' || *p1
== '\t')
2141 if (*p1
++ != '<' || p
[-2] != '>')
2142 fatal_error (input_location
,
2143 "specs %%include syntax malformed after "
2145 (long) (p1
- buffer
+ 1));
2148 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2150 read_specs (new_filename
, false, user_p
);
2151 else if (verbose_flag
)
2152 fnotice (stderr
, "could not find specs file %s\n", p1
);
2155 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2156 && (p1
[sizeof "%rename" - 1] == ' '
2157 || p1
[sizeof "%rename" - 1] == '\t'))
2160 struct spec_list
*sl
;
2161 struct spec_list
*newsl
;
2163 /* Get original name. */
2164 p1
+= sizeof "%rename";
2165 while (*p1
== ' ' || *p1
== '\t')
2168 if (! ISALPHA ((unsigned char) *p1
))
2169 fatal_error (input_location
,
2170 "specs %%rename syntax malformed after "
2172 (long) (p1
- buffer
));
2175 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2178 if (*p2
!= ' ' && *p2
!= '\t')
2179 fatal_error (input_location
,
2180 "specs %%rename syntax malformed after "
2182 (long) (p2
- buffer
));
2186 while (*p2
== ' ' || *p2
== '\t')
2189 if (! ISALPHA ((unsigned char) *p2
))
2190 fatal_error (input_location
,
2191 "specs %%rename syntax malformed after "
2193 (long) (p2
- buffer
));
2195 /* Get new spec name. */
2197 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2201 fatal_error (input_location
,
2202 "specs %%rename syntax malformed after "
2204 (long) (p3
- buffer
));
2207 for (sl
= specs
; sl
; sl
= sl
->next
)
2208 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2212 fatal_error (input_location
,
2213 "specs %s spec was not found to be renamed", p1
);
2215 if (strcmp (p1
, p2
) == 0)
2218 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2219 if (strcmp (newsl
->name
, p2
) == 0)
2220 fatal_error (input_location
,
2221 "%s: attempt to rename spec %qs to "
2222 "already defined spec %qs",
2227 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
2229 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2233 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2235 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2237 *(sl
->ptr_spec
) = "";
2242 fatal_error (input_location
,
2243 "specs unknown %% command after %ld characters",
2244 (long) (p1
- buffer
));
2247 /* Find the colon that should end the suffix. */
2249 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2252 /* The colon shouldn't be missing. */
2254 fatal_error (input_location
,
2255 "specs file malformed after %ld characters",
2256 (long) (p1
- buffer
));
2258 /* Skip back over trailing whitespace. */
2260 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2263 /* Copy the suffix to a string. */
2264 suffix
= save_string (p
, p2
- p
);
2265 /* Find the next line. */
2266 p
= skip_whitespace (p1
+ 1);
2268 fatal_error (input_location
,
2269 "specs file malformed after %ld characters",
2270 (long) (p
- buffer
));
2273 /* Find next blank line or end of string. */
2274 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2277 /* Specs end at the blank line and do not include the newline. */
2278 spec
= save_string (p
, p1
- p
);
2281 /* Delete backslash-newline sequences from the spec. */
2286 if (in
[0] == '\\' && in
[1] == '\n')
2288 else if (in
[0] == '#')
2289 while (*in
&& *in
!= '\n')
2297 if (suffix
[0] == '*')
2299 if (! strcmp (suffix
, "*link_command"))
2300 link_command_spec
= spec
;
2303 set_spec (suffix
+ 1, spec
, user_p
);
2309 /* Add this pair to the vector. */
2311 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2313 compilers
[n_compilers
].suffix
= suffix
;
2314 compilers
[n_compilers
].spec
= spec
;
2316 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2320 link_command_spec
= spec
;
2323 if (link_command_spec
== 0)
2324 fatal_error (input_location
, "spec file has no spec for linking");
2326 XDELETEVEC (buffer
);
2329 /* Record the names of temporary files we tell compilers to write,
2330 and delete them at the end of the run. */
2332 /* This is the common prefix we use to make temp file names.
2333 It is chosen once for each run of this program.
2334 It is substituted into a spec by %g or %j.
2335 Thus, all temp file names contain this prefix.
2336 In practice, all temp file names start with this prefix.
2338 This prefix comes from the envvar TMPDIR if it is defined;
2339 otherwise, from the P_tmpdir macro if that is defined;
2340 otherwise, in /usr/tmp or /tmp;
2341 or finally the current directory if all else fails. */
2343 static const char *temp_filename
;
2345 /* Length of the prefix. */
2347 static int temp_filename_length
;
2349 /* Define the list of temporary files to delete. */
2354 struct temp_file
*next
;
2357 /* Queue of files to delete on success or failure of compilation. */
2358 static struct temp_file
*always_delete_queue
;
2359 /* Queue of files to delete on failure of compilation. */
2360 static struct temp_file
*failure_delete_queue
;
2362 /* Record FILENAME as a file to be deleted automatically.
2363 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2364 otherwise delete it in any case.
2365 FAIL_DELETE nonzero means delete it if a compilation step fails;
2366 otherwise delete it in any case. */
2369 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2371 char *const name
= xstrdup (filename
);
2375 struct temp_file
*temp
;
2376 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2377 if (! filename_cmp (name
, temp
->name
))
2383 temp
= XNEW (struct temp_file
);
2384 temp
->next
= always_delete_queue
;
2386 always_delete_queue
= temp
;
2393 struct temp_file
*temp
;
2394 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2395 if (! filename_cmp (name
, temp
->name
))
2401 temp
= XNEW (struct temp_file
);
2402 temp
->next
= failure_delete_queue
;
2404 failure_delete_queue
= temp
;
2410 /* Delete all the temporary files whose names we previously recorded. */
2412 #ifndef DELETE_IF_ORDINARY
2413 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2416 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2417 if (unlink (NAME) < 0) \
2419 perror_with_name (NAME); \
2424 delete_if_ordinary (const char *name
)
2430 printf ("Delete %s? (y or n) ", name
);
2434 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2437 if (i
== 'y' || i
== 'Y')
2439 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2443 delete_temp_files (void)
2445 struct temp_file
*temp
;
2447 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2448 delete_if_ordinary (temp
->name
);
2449 always_delete_queue
= 0;
2452 /* Delete all the files to be deleted on error. */
2455 delete_failure_queue (void)
2457 struct temp_file
*temp
;
2459 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2460 delete_if_ordinary (temp
->name
);
2464 clear_failure_queue (void)
2466 failure_delete_queue
= 0;
2469 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2471 If DO_MULTI is true iterate over the paths twice, first with multilib
2472 suffix then without, otherwise iterate over the paths once without
2473 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2474 to avoid visiting the same path twice, but we could do better. For
2475 instance, /usr/lib/../lib is considered different from /usr/lib.
2476 At least EXTRA_SPACE chars past the end of the path passed to
2477 CALLBACK are available for use by the callback.
2478 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2480 Returns the value returned by CALLBACK. */
2483 for_each_path (const struct path_prefix
*paths
,
2486 void *(*callback
) (char *, void *),
2487 void *callback_info
)
2489 struct prefix_list
*pl
;
2490 const char *multi_dir
= NULL
;
2491 const char *multi_os_dir
= NULL
;
2492 const char *multiarch_suffix
= NULL
;
2493 const char *multi_suffix
;
2494 const char *just_multi_suffix
;
2497 bool skip_multi_dir
= false;
2498 bool skip_multi_os_dir
= false;
2500 multi_suffix
= machine_suffix
;
2501 just_multi_suffix
= just_machine_suffix
;
2502 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2504 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2505 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2506 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2508 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2509 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2511 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2515 size_t multi_dir_len
= 0;
2516 size_t multi_os_dir_len
= 0;
2517 size_t multiarch_len
= 0;
2519 size_t just_suffix_len
;
2523 multi_dir_len
= strlen (multi_dir
);
2525 multi_os_dir_len
= strlen (multi_os_dir
);
2526 if (multiarch_suffix
)
2527 multiarch_len
= strlen (multiarch_suffix
);
2528 suffix_len
= strlen (multi_suffix
);
2529 just_suffix_len
= strlen (just_multi_suffix
);
2533 len
= paths
->max_len
+ extra_space
+ 1;
2534 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2535 path
= XNEWVEC (char, len
);
2538 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2540 len
= strlen (pl
->prefix
);
2541 memcpy (path
, pl
->prefix
, len
);
2543 /* Look first in MACHINE/VERSION subdirectory. */
2544 if (!skip_multi_dir
)
2546 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2547 ret
= callback (path
, callback_info
);
2552 /* Some paths are tried with just the machine (ie. target)
2553 subdir. This is used for finding as, ld, etc. */
2555 && pl
->require_machine_suffix
== 2)
2557 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2558 ret
= callback (path
, callback_info
);
2563 /* Now try the multiarch path. */
2565 && !pl
->require_machine_suffix
&& multiarch_dir
)
2567 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2568 ret
= callback (path
, callback_info
);
2573 /* Now try the base path. */
2574 if (!pl
->require_machine_suffix
2575 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2577 const char *this_multi
;
2578 size_t this_multi_len
;
2580 if (pl
->os_multilib
)
2582 this_multi
= multi_os_dir
;
2583 this_multi_len
= multi_os_dir_len
;
2587 this_multi
= multi_dir
;
2588 this_multi_len
= multi_dir_len
;
2592 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2596 ret
= callback (path
, callback_info
);
2604 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2607 /* Run through the paths again, this time without multilibs.
2608 Don't repeat any we have already seen. */
2611 free (CONST_CAST (char *, multi_dir
));
2613 free (CONST_CAST (char *, multi_suffix
));
2614 multi_suffix
= machine_suffix
;
2615 free (CONST_CAST (char *, just_multi_suffix
));
2616 just_multi_suffix
= just_machine_suffix
;
2619 skip_multi_dir
= true;
2622 free (CONST_CAST (char *, multi_os_dir
));
2623 multi_os_dir
= NULL
;
2626 skip_multi_os_dir
= true;
2631 free (CONST_CAST (char *, multi_dir
));
2632 free (CONST_CAST (char *, multi_suffix
));
2633 free (CONST_CAST (char *, just_multi_suffix
));
2636 free (CONST_CAST (char *, multi_os_dir
));
2642 /* Callback for build_search_list. Adds path to obstack being built. */
2644 struct add_to_obstack_info
{
2651 add_to_obstack (char *path
, void *data
)
2653 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2655 if (info
->check_dir
&& !is_directory (path
, false))
2658 if (!info
->first_time
)
2659 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2661 obstack_grow (info
->ob
, path
, strlen (path
));
2663 info
->first_time
= false;
2667 /* Add or change the value of an environment variable, outputting the
2668 change to standard error if in verbose mode. */
2670 xputenv (const char *string
)
2675 /* Build a list of search directories from PATHS.
2676 PREFIX is a string to prepend to the list.
2677 If CHECK_DIR_P is true we ensure the directory exists.
2678 If DO_MULTI is true, multilib paths are output first, then
2680 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2681 It is also used by the --print-search-dirs flag. */
2684 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2685 bool check_dir
, bool do_multi
)
2687 struct add_to_obstack_info info
;
2689 info
.ob
= &collect_obstack
;
2690 info
.check_dir
= check_dir
;
2691 info
.first_time
= true;
2693 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2694 obstack_1grow (&collect_obstack
, '=');
2696 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2698 obstack_1grow (&collect_obstack
, '\0');
2699 return XOBFINISH (&collect_obstack
, char *);
2702 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2706 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2709 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2712 /* Check whether NAME can be accessed in MODE. This is like access,
2713 except that it never considers directories to be executable. */
2716 access_check (const char *name
, int mode
)
2722 if (stat (name
, &st
) < 0
2723 || S_ISDIR (st
.st_mode
))
2727 return access (name
, mode
);
2730 /* Callback for find_a_file. Appends the file name to the directory
2731 path. If the resulting file exists in the right mode, return the
2732 full pathname to the file. */
2734 struct file_at_path_info
{
2743 file_at_path (char *path
, void *data
)
2745 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2746 size_t len
= strlen (path
);
2748 memcpy (path
+ len
, info
->name
, info
->name_len
);
2749 len
+= info
->name_len
;
2751 /* Some systems have a suffix for executable files.
2752 So try appending that first. */
2753 if (info
->suffix_len
)
2755 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2756 if (access_check (path
, info
->mode
) == 0)
2761 if (access_check (path
, info
->mode
) == 0)
2767 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2768 access to check permissions. If DO_MULTI is true, search multilib
2769 paths then non-multilib paths, otherwise do not search multilib paths.
2770 Return 0 if not found, otherwise return its name, allocated with malloc. */
2773 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2776 struct file_at_path_info info
;
2778 #ifdef DEFAULT_ASSEMBLER
2779 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2780 return xstrdup (DEFAULT_ASSEMBLER
);
2783 #ifdef DEFAULT_LINKER
2784 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2785 return xstrdup (DEFAULT_LINKER
);
2788 /* Determine the filename to execute (special case for absolute paths). */
2790 if (IS_ABSOLUTE_PATH (name
))
2792 if (access (name
, mode
) == 0)
2793 return xstrdup (name
);
2799 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2800 info
.name_len
= strlen (info
.name
);
2801 info
.suffix_len
= strlen (info
.suffix
);
2804 return (char*) for_each_path (pprefix
, do_multi
,
2805 info
.name_len
+ info
.suffix_len
,
2806 file_at_path
, &info
);
2809 /* Ranking of prefixes in the sort list. -B prefixes are put before
2812 enum path_prefix_priority
2814 PREFIX_PRIORITY_B_OPT
,
2815 PREFIX_PRIORITY_LAST
2818 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2819 order according to PRIORITY. Within each PRIORITY, new entries are
2822 If WARN is nonzero, we will warn if no file is found
2823 through this prefix. WARN should point to an int
2824 which will be set to 1 if this entry is used.
2826 COMPONENT is the value to be passed to update_path.
2828 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2829 the complete value of machine_suffix.
2830 2 means try both machine_suffix and just_machine_suffix. */
2833 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2834 const char *component
, /* enum prefix_priority */ int priority
,
2835 int require_machine_suffix
, int os_multilib
)
2837 struct prefix_list
*pl
, **prev
;
2840 for (prev
= &pprefix
->plist
;
2841 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2842 prev
= &(*prev
)->next
)
2845 /* Keep track of the longest prefix. */
2847 prefix
= update_path (prefix
, component
);
2848 len
= strlen (prefix
);
2849 if (len
> pprefix
->max_len
)
2850 pprefix
->max_len
= len
;
2852 pl
= XNEW (struct prefix_list
);
2853 pl
->prefix
= prefix
;
2854 pl
->require_machine_suffix
= require_machine_suffix
;
2855 pl
->priority
= priority
;
2856 pl
->os_multilib
= os_multilib
;
2858 /* Insert after PREV. */
2863 /* Same as add_prefix, but prepending target_system_root to prefix. */
2864 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2866 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2867 const char *component
,
2868 /* enum prefix_priority */ int priority
,
2869 int require_machine_suffix
, int os_multilib
)
2871 if (!IS_ABSOLUTE_PATH (prefix
))
2872 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
2874 if (target_system_root
)
2876 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2877 size_t sysroot_len
= strlen (target_system_root
);
2880 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2881 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2883 if (target_sysroot_suffix
)
2884 prefix
= concat (sysroot_no_trailing_dir_separator
,
2885 target_sysroot_suffix
, prefix
, NULL
);
2887 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2889 free (sysroot_no_trailing_dir_separator
);
2891 /* We have to override this because GCC's notion of sysroot
2892 moves along with GCC. */
2896 add_prefix (pprefix
, prefix
, component
, priority
,
2897 require_machine_suffix
, os_multilib
);
2900 /* Execute the command specified by the arguments on the current line of spec.
2901 When using pipes, this includes several piped-together commands
2902 with `|' between them.
2904 Return 0 if successful, -1 if failed. */
2910 int n_commands
; /* # of command. */
2912 struct pex_obj
*pex
;
2915 const char *prog
; /* program name. */
2916 const char **argv
; /* vector of args. */
2920 struct command
*commands
; /* each command buffer with above info. */
2922 gcc_assert (!processing_spec_function
);
2926 string
= find_a_file (&exec_prefixes
,
2927 argbuf
[0], X_OK
, false);
2930 insert_wrapper (wrapper_string
);
2933 /* Count # of piped commands. */
2934 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2935 if (strcmp (arg
, "|") == 0)
2938 /* Get storage for each command. */
2939 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2941 /* Split argbuf into its separate piped processes,
2942 and record info about each one.
2943 Also search for the programs that are to be run. */
2945 argbuf
.safe_push (0);
2947 commands
[0].prog
= argbuf
[0]; /* first command. */
2948 commands
[0].argv
= argbuf
.address ();
2950 if (!wrapper_string
)
2952 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2953 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2956 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2957 if (arg
&& strcmp (arg
, "|") == 0)
2958 { /* each command. */
2959 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2960 fatal_error (input_location
, "-pipe not supported");
2962 argbuf
[i
] = 0; /* Termination of
2964 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2965 commands
[n_commands
].argv
2966 = &(argbuf
.address ())[i
+ 1];
2967 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2970 commands
[n_commands
].argv
[0] = string
;
2974 /* If -v, print what we are about to do, and maybe query. */
2978 /* For help listings, put a blank line between sub-processes. */
2979 if (print_help_list
)
2980 fputc ('\n', stderr
);
2982 /* Print each piped command as a separate line. */
2983 for (i
= 0; i
< n_commands
; i
++)
2985 const char *const *j
;
2987 if (verbose_only_flag
)
2989 for (j
= commands
[i
].argv
; *j
; j
++)
2992 for (p
= *j
; *p
; ++p
)
2993 if (!ISALNUM ((unsigned char) *p
)
2994 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2998 fprintf (stderr
, " \"");
2999 for (p
= *j
; *p
; ++p
)
3001 if (*p
== '"' || *p
== '\\' || *p
== '$')
3002 fputc ('\\', stderr
);
3005 fputc ('"', stderr
);
3007 /* If it's empty, print "". */
3009 fprintf (stderr
, " \"\"");
3011 fprintf (stderr
, " %s", *j
);
3015 for (j
= commands
[i
].argv
; *j
; j
++)
3016 /* If it's empty, print "". */
3018 fprintf (stderr
, " \"\"");
3020 fprintf (stderr
, " %s", *j
);
3022 /* Print a pipe symbol after all but the last command. */
3023 if (i
+ 1 != n_commands
)
3024 fprintf (stderr
, " |");
3025 fprintf (stderr
, "\n");
3028 if (verbose_only_flag
!= 0)
3030 /* verbose_only_flag should act as if the spec was
3031 executed, so increment execution_count before
3032 returning. This prevents spurious warnings about
3033 unused linker input files, etc. */
3038 fnotice (stderr
, "\nGo ahead? (y or n) ");
3042 while (getchar () != '\n')
3045 if (i
!= 'y' && i
!= 'Y')
3050 #ifdef ENABLE_VALGRIND_CHECKING
3051 /* Run the each command through valgrind. To simplify prepending the
3052 path to valgrind and the option "-q" (for quiet operation unless
3053 something triggers), we allocate a separate argv array. */
3055 for (i
= 0; i
< n_commands
; i
++)
3061 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3064 argv
= XALLOCAVEC (const char *, argc
+ 3);
3066 argv
[0] = VALGRIND_PATH
;
3068 for (j
= 2; j
< argc
+ 2; j
++)
3069 argv
[j
] = commands
[i
].argv
[j
- 2];
3072 commands
[i
].argv
= argv
;
3073 commands
[i
].prog
= argv
[0];
3077 /* Run each piped subprocess. */
3079 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3080 ? PEX_RECORD_TIMES
: 0),
3081 progname
, temp_filename
);
3083 fatal_error (input_location
, "pex_init failed: %m");
3085 for (i
= 0; i
< n_commands
; i
++)
3089 const char *string
= commands
[i
].argv
[0];
3091 errmsg
= pex_run (pex
,
3092 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3093 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3094 string
, CONST_CAST (char **, commands
[i
].argv
),
3099 fatal_error (input_location
, errmsg
);
3103 pfatal_with_name (errmsg
);
3107 if (i
&& string
!= commands
[i
].prog
)
3108 free (CONST_CAST (char *, string
));
3113 /* Wait for all the subprocesses to finish. */
3117 struct pex_time
*times
= NULL
;
3120 statuses
= (int *) alloca (n_commands
* sizeof (int));
3121 if (!pex_get_status (pex
, n_commands
, statuses
))
3122 fatal_error (input_location
, "failed to get exit status: %m");
3124 if (report_times
|| report_times_to_file
)
3126 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3127 if (!pex_get_times (pex
, n_commands
, times
))
3128 fatal_error (input_location
, "failed to get process times: %m");
3133 for (i
= 0; i
< n_commands
; ++i
)
3135 int status
= statuses
[i
];
3137 if (WIFSIGNALED (status
))
3140 /* SIGPIPE is a special case. It happens in -pipe mode
3141 when the compiler dies before the preprocessor is done,
3142 or the assembler dies before the compiler is done.
3143 There's generally been an error already, and this is
3144 just fallout. So don't generate another error unless
3145 we would otherwise have succeeded. */
3146 if (WTERMSIG (status
) == SIGPIPE
3147 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3154 internal_error_no_backtrace ("%s (program %s)",
3155 strsignal (WTERMSIG (status
)),
3158 else if (WIFEXITED (status
)
3159 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3161 /* For ICEs in cc1, cc1obj, cc1plus see if it is
3162 reproducible or not. */
3165 && WEXITSTATUS (status
) == ICE_EXIT_CODE
3167 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
3168 && ! strncmp (p
+ 1, "cc1", 3))
3169 try_generate_repro (commands
[0].argv
);
3170 if (WEXITSTATUS (status
) > greatest_status
)
3171 greatest_status
= WEXITSTATUS (status
);
3175 if (report_times
|| report_times_to_file
)
3177 struct pex_time
*pt
= ×
[i
];
3180 ut
= ((double) pt
->user_seconds
3181 + (double) pt
->user_microseconds
/ 1.0e6
);
3182 st
= ((double) pt
->system_seconds
3183 + (double) pt
->system_microseconds
/ 1.0e6
);
3188 fnotice (stderr
, "# %s %.2f %.2f\n",
3189 commands
[i
].prog
, ut
, st
);
3191 if (report_times_to_file
)
3194 const char *const *j
;
3196 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3198 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3201 for (p
= *j
; *p
; ++p
)
3202 if (*p
== '"' || *p
== '\\' || *p
== '$'
3208 fprintf (report_times_to_file
, " \"");
3209 for (p
= *j
; *p
; ++p
)
3211 if (*p
== '"' || *p
== '\\' || *p
== '$')
3212 fputc ('\\', report_times_to_file
);
3213 fputc (*p
, report_times_to_file
);
3215 fputc ('"', report_times_to_file
);
3218 fprintf (report_times_to_file
, " %s", *j
);
3221 fputc ('\n', report_times_to_file
);
3227 if (commands
[0].argv
[0] != commands
[0].prog
)
3228 free (CONST_CAST (char *, commands
[0].argv
[0]));
3234 /* Find all the switches given to us
3235 and make a vector describing them.
3236 The elements of the vector are strings, one per switch given.
3237 If a switch uses following arguments, then the `part1' field
3238 is the switch itself and the `args' field
3239 is a null-terminated vector containing the following arguments.
3240 Bits in the `live_cond' field are:
3241 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3242 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3243 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3244 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored.
3245 SWITCH_KEEP_FOR_GCC to indicate that this switch, otherwise ignored,
3246 should be included in COLLECT_GCC_OPTIONS.
3247 in all do_spec calls afterwards. Used for %<S from self specs.
3248 The `known' field describes whether this is an internal switch.
3249 The `validated' field describes whether any spec has looked at this switch;
3250 if it remains false at the end of the run, the switch must be meaningless.
3251 The `ordering' field is used to temporarily mark switches that have to be
3252 kept in a specific order. */
3254 #define SWITCH_LIVE (1 << 0)
3255 #define SWITCH_FALSE (1 << 1)
3256 #define SWITCH_IGNORE (1 << 2)
3257 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
3258 #define SWITCH_KEEP_FOR_GCC (1 << 4)
3264 unsigned int live_cond
;
3270 static struct switchstr
*switches
;
3272 static int n_switches
;
3274 static int n_switches_alloc
;
3276 /* Set to zero if -fcompare-debug is disabled, positive if it's
3277 enabled and we're running the first compilation, negative if it's
3278 enabled and we're running the second compilation. For most of the
3279 time, it's in the range -1..1, but it can be temporarily set to 2
3280 or 3 to indicate that the -fcompare-debug flags didn't come from
3281 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3282 variable, until a synthesized -fcompare-debug flag is added to the
3286 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3287 int compare_debug_second
;
3289 /* Set to the flags that should be passed to the second compilation in
3290 a -fcompare-debug compilation. */
3291 const char *compare_debug_opt
;
3293 static struct switchstr
*switches_debug_check
[2];
3295 static int n_switches_debug_check
[2];
3297 static int n_switches_alloc_debug_check
[2];
3299 static char *debug_check_temp_file
[2];
3301 /* Language is one of three things:
3303 1) The name of a real programming language.
3304 2) NULL, indicating that no one has figured out
3306 3) '*', indicating that the file should be passed
3311 const char *language
;
3312 struct compiler
*incompiler
;
3317 /* Also a vector of input files specified. */
3319 static struct infile
*infiles
;
3323 static int n_infiles_alloc
;
3325 /* True if undefined environment variables encountered during spec processing
3326 are ok to ignore, typically when we're running for --help or --version. */
3328 static bool spec_undefvar_allowed
;
3330 /* True if multiple input files are being compiled to a single
3333 static bool combine_inputs
;
3335 /* This counts the number of libraries added by lang_specific_driver, so that
3336 we can tell if there were any user supplied any files or libraries. */
3338 static int added_libraries
;
3340 /* And a vector of corresponding output files is made up later. */
3342 const char **outfiles
;
3344 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3346 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3347 is true if we should look for an executable suffix. DO_OBJ
3348 is true if we should look for an object suffix. */
3351 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3352 int do_obj ATTRIBUTE_UNUSED
)
3354 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3362 len
= strlen (name
);
3364 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3365 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3366 if (do_obj
&& len
> 2
3367 && name
[len
- 2] == '.'
3368 && name
[len
- 1] == 'o')
3370 obstack_grow (&obstack
, name
, len
- 2);
3371 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3372 name
= XOBFINISH (&obstack
, const char *);
3376 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3377 /* If there is no filetype, make it the executable suffix (which includes
3378 the "."). But don't get confused if we have just "-o". */
3379 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3382 for (i
= len
- 1; i
>= 0; i
--)
3383 if (IS_DIR_SEPARATOR (name
[i
]))
3386 for (i
++; i
< len
; i
++)
3390 obstack_grow (&obstack
, name
, len
);
3391 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3392 strlen (TARGET_EXECUTABLE_SUFFIX
));
3393 name
= XOBFINISH (&obstack
, const char *);
3400 /* Display the command line switches accepted by gcc. */
3404 printf (_("Usage: %s [options] file...\n"), progname
);
3405 fputs (_("Options:\n"), stdout
);
3407 fputs (_(" -pass-exit-codes Exit with highest error code from a phase.\n"), stdout
);
3408 fputs (_(" --help Display this information.\n"), stdout
);
3409 fputs (_(" --target-help Display target specific command line options.\n"), stdout
);
3410 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...].\n"), stdout
);
3411 fputs (_(" Display specific types of command line options.\n"), stdout
);
3413 fputs (_(" (Use '-v --help' to display command line options of sub-processes).\n"), stdout
);
3414 fputs (_(" --version Display compiler version information.\n"), stdout
);
3415 fputs (_(" -dumpspecs Display all of the built in spec strings.\n"), stdout
);
3416 fputs (_(" -dumpversion Display the version of the compiler.\n"), stdout
);
3417 fputs (_(" -dumpmachine Display the compiler's target processor.\n"), stdout
);
3418 fputs (_(" -print-search-dirs Display the directories in the compiler's search path.\n"), stdout
);
3419 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library.\n"), stdout
);
3420 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>.\n"), stdout
);
3421 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>.\n"), stdout
);
3423 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3424 a component in the library path.\n"), stdout
);
3425 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc.\n"), stdout
);
3427 -print-multi-lib Display the mapping between command line options and\n\
3428 multiple library search directories.\n"), stdout
);
3429 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries.\n"), stdout
);
3430 fputs (_(" -print-sysroot Display the target libraries directory.\n"), stdout
);
3431 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers.\n"), stdout
);
3432 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler.\n"), stdout
);
3433 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor.\n"), stdout
);
3434 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker.\n"), stdout
);
3435 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler.\n"), stdout
);
3436 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor.\n"), stdout
);
3437 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker.\n"), stdout
);
3438 fputs (_(" -save-temps Do not delete intermediate files.\n"), stdout
);
3439 fputs (_(" -save-temps=<arg> Do not delete intermediate files.\n"), stdout
);
3441 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3442 prefixes to other gcc components.\n"), stdout
);
3443 fputs (_(" -pipe Use pipes rather than intermediate files.\n"), stdout
);
3444 fputs (_(" -time Time the execution of each subprocess.\n"), stdout
);
3445 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>.\n"), stdout
);
3446 fputs (_(" -std=<standard> Assume that the input sources are for <standard>.\n"), stdout
);
3448 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3449 and libraries.\n"), stdout
);
3450 fputs (_(" -B <directory> Add <directory> to the compiler's search paths.\n"), stdout
);
3451 fputs (_(" -v Display the programs invoked by the compiler.\n"), stdout
);
3452 fputs (_(" -### Like -v but options quoted and commands not executed.\n"), stdout
);
3453 fputs (_(" -E Preprocess only; do not compile, assemble or link.\n"), stdout
);
3454 fputs (_(" -S Compile only; do not assemble or link.\n"), stdout
);
3455 fputs (_(" -c Compile and assemble, but do not link.\n"), stdout
);
3456 fputs (_(" -o <file> Place the output into <file>.\n"), stdout
);
3457 fputs (_(" -pie Create a position independent executable.\n"), stdout
);
3458 fputs (_(" -shared Create a shared library.\n"), stdout
);
3460 -x <language> Specify the language of the following input files.\n\
3461 Permissible languages include: c c++ assembler none\n\
3462 'none' means revert to the default behavior of\n\
3463 guessing the language based on the file's extension.\n\
3467 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3468 passed on to the various sub-processes invoked by %s. In order to pass\n\
3469 other options on to these processes the -W<letter> options must be used.\n\
3472 /* The rest of the options are displayed by invocations of the various
3477 add_preprocessor_option (const char *option
, int len
)
3479 preprocessor_options
.safe_push (save_string (option
, len
));
3483 add_assembler_option (const char *option
, int len
)
3485 assembler_options
.safe_push (save_string (option
, len
));
3489 add_linker_option (const char *option
, int len
)
3491 linker_options
.safe_push (save_string (option
, len
));
3494 /* Allocate space for an input file in infiles. */
3499 if (n_infiles_alloc
== 0)
3501 n_infiles_alloc
= 16;
3502 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3504 else if (n_infiles_alloc
== n_infiles
)
3506 n_infiles_alloc
*= 2;
3507 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3511 /* Store an input file with the given NAME and LANGUAGE in
3515 add_infile (const char *name
, const char *language
)
3518 infiles
[n_infiles
].name
= name
;
3519 infiles
[n_infiles
++].language
= language
;
3522 /* Allocate space for a switch in switches. */
3527 if (n_switches_alloc
== 0)
3529 n_switches_alloc
= 16;
3530 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3532 else if (n_switches_alloc
== n_switches
)
3534 n_switches_alloc
*= 2;
3535 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3539 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3540 as validated if VALIDATED and KNOWN if it is an internal switch. */
3543 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3544 bool validated
, bool known
)
3547 switches
[n_switches
].part1
= opt
+ 1;
3549 switches
[n_switches
].args
= 0;
3552 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3553 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3554 switches
[n_switches
].args
[n_args
] = NULL
;
3557 switches
[n_switches
].live_cond
= 0;
3558 switches
[n_switches
].validated
= validated
;
3559 switches
[n_switches
].known
= known
;
3560 switches
[n_switches
].ordering
= 0;
3564 /* Set the SOURCE_DATE_EPOCH environment variable to the current time if it is
3568 set_source_date_epoch_envvar ()
3570 /* Array size is 21 = ceil(log_10(2^64)) + 1 to hold string representations
3571 of 64 bit integers. */
3572 char source_date_epoch
[21];
3577 if (tt
< (time_t) 0 || errno
!= 0)
3580 snprintf (source_date_epoch
, 21, "%llu", (unsigned long long) tt
);
3581 /* Using setenv instead of xputenv because we want the variable to remain
3582 after finalizing so that it's still set in the second run when using
3584 setenv ("SOURCE_DATE_EPOCH", source_date_epoch
, 0);
3587 /* Handle an option DECODED that is unknown to the option-processing
3591 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3593 const char *opt
= decoded
->arg
;
3594 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3595 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3597 /* Leave unknown -Wno-* options for the compiler proper, to be
3598 diagnosed only if there are warnings. */
3599 save_switch (decoded
->canonical_option
[0],
3600 decoded
->canonical_option_num_elements
- 1,
3601 &decoded
->canonical_option
[1], false, true);
3604 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3606 /* Give it a chance to define it a spec file. */
3607 save_switch (decoded
->canonical_option
[0],
3608 decoded
->canonical_option_num_elements
- 1,
3609 &decoded
->canonical_option
[1], false, false);
3616 /* Handle an option DECODED that is not marked as CL_DRIVER.
3617 LANG_MASK will always be CL_DRIVER. */
3620 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3621 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3623 /* At this point, non-driver options are accepted (and expected to
3624 be passed down by specs) unless marked to be rejected by the
3625 driver. Options to be rejected by the driver but accepted by the
3626 compilers proper are treated just like completely unknown
3628 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3630 if (option
->cl_reject_driver
)
3631 error ("unrecognized command line option %qs",
3632 decoded
->orig_option_with_args_text
);
3634 save_switch (decoded
->canonical_option
[0],
3635 decoded
->canonical_option_num_elements
- 1,
3636 &decoded
->canonical_option
[1], false, true);
3639 static const char *spec_lang
= 0;
3640 static int last_language_n_infiles
;
3642 /* Parse -foffload option argument. */
3645 handle_foffload_option (const char *arg
)
3647 const char *c
, *cur
, *n
, *next
, *end
;
3650 /* If option argument starts with '-' then no target is specified and we
3651 do not need to parse it. */
3655 end
= strchr (arg
, '=');
3657 end
= strchr (arg
, '\0');
3662 next
= strchr (cur
, ',');
3665 next
= (next
> end
) ? end
: next
;
3667 target
= XNEWVEC (char, next
- cur
+ 1);
3668 memcpy (target
, cur
, next
- cur
);
3669 target
[next
- cur
] = '\0';
3671 /* If 'disable' is passed to the option, stop parsing the option and clean
3672 the list of offload targets. */
3673 if (strcmp (target
, "disable") == 0)
3675 free (offload_targets
);
3676 offload_targets
= xstrdup ("");
3680 /* Check that GCC is configured to support the offload target. */
3681 c
= OFFLOAD_TARGETS
;
3684 n
= strchr (c
, ',');
3686 n
= strchr (c
, '\0');
3688 if (next
- cur
== n
- c
&& strncmp (target
, c
, n
- c
) == 0)
3691 c
= *n
? n
+ 1 : NULL
;
3695 fatal_error (input_location
,
3696 "GCC is not configured to support %s as offload target",
3699 if (!offload_targets
)
3701 offload_targets
= target
;
3706 /* Check that the target hasn't already presented in the list. */
3707 c
= offload_targets
;
3710 n
= strchr (c
, ':');
3712 n
= strchr (c
, '\0');
3714 if (next
- cur
== n
- c
&& strncmp (c
, target
, n
- c
) == 0)
3721 /* If duplicate is not found, append the target to the list. */
3724 size_t offload_targets_len
= strlen (offload_targets
);
3726 = XRESIZEVEC (char, offload_targets
,
3727 offload_targets_len
+ 1 + next
- cur
+ 1);
3728 offload_targets
[offload_targets_len
++] = ':';
3729 memcpy (offload_targets
+ offload_targets_len
, target
, next
- cur
+ 1);
3734 XDELETEVEC (target
);
3738 /* Handle a driver option; arguments and return value as for
3742 driver_handle_option (struct gcc_options
*opts
,
3743 struct gcc_options
*opts_set
,
3744 const struct cl_decoded_option
*decoded
,
3745 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3747 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3748 diagnostic_context
*dc
)
3750 size_t opt_index
= decoded
->opt_index
;
3751 const char *arg
= decoded
->arg
;
3752 const char *compare_debug_replacement_opt
;
3753 int value
= decoded
->value
;
3754 bool validated
= false;
3755 bool do_save
= true;
3757 gcc_assert (opts
== &global_options
);
3758 gcc_assert (opts_set
== &global_options_set
);
3759 gcc_assert (kind
== DK_UNSPECIFIED
);
3760 gcc_assert (loc
== UNKNOWN_LOCATION
);
3761 gcc_assert (dc
== global_dc
);
3767 struct spec_list
*sl
;
3769 for (sl
= specs
; sl
; sl
= sl
->next
)
3770 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3771 if (link_command_spec
)
3772 printf ("*link_command:\n%s\n\n", link_command_spec
);
3776 case OPT_dumpversion
:
3777 printf ("%s\n", spec_version
);
3780 case OPT_dumpmachine
:
3781 printf ("%s\n", spec_machine
);
3784 case OPT_dumpfullversion
:
3785 printf ("%s\n", BASEVER
);
3791 /* CPP driver cannot obtain switch from cc1_options. */
3793 add_preprocessor_option ("--version", strlen ("--version"));
3794 add_assembler_option ("--version", strlen ("--version"));
3795 add_linker_option ("--version", strlen ("--version"));
3799 print_help_list
= 1;
3801 /* CPP driver cannot obtain switch from cc1_options. */
3803 add_preprocessor_option ("--help", 6);
3804 add_assembler_option ("--help", 6);
3805 add_linker_option ("--help", 6);
3809 print_subprocess_help
= 2;
3812 case OPT__target_help
:
3813 print_subprocess_help
= 1;
3815 /* CPP driver cannot obtain switch from cc1_options. */
3817 add_preprocessor_option ("--target-help", 13);
3818 add_assembler_option ("--target-help", 13);
3819 add_linker_option ("--target-help", 13);
3822 case OPT__no_sysroot_suffix
:
3823 case OPT_pass_exit_codes
:
3824 case OPT_print_search_dirs
:
3825 case OPT_print_file_name_
:
3826 case OPT_print_prog_name_
:
3827 case OPT_print_multi_lib
:
3828 case OPT_print_multi_directory
:
3829 case OPT_print_sysroot
:
3830 case OPT_print_multi_os_directory
:
3831 case OPT_print_multiarch
:
3832 case OPT_print_sysroot_headers_suffix
:
3835 /* These options set the variables specified in common.opt
3836 automatically, and do not need to be saved for spec
3841 case OPT_print_libgcc_file_name
:
3842 print_file_name
= "libgcc.a";
3846 case OPT_fuse_ld_bfd
:
3850 case OPT_fuse_ld_gold
:
3854 case OPT_fcompare_debug_second
:
3855 compare_debug_second
= 1;
3858 case OPT_fcompare_debug
:
3862 compare_debug_replacement_opt
= "-fcompare-debug=";
3864 goto compare_debug_with_arg
;
3867 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3869 goto compare_debug_with_arg
;
3876 case OPT_fcompare_debug_
:
3877 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3878 compare_debug_with_arg
:
3879 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3880 gcc_assert (arg
!= NULL
);
3885 if (compare_debug
< 0)
3886 compare_debug_opt
= NULL
;
3888 compare_debug_opt
= arg
;
3889 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
3890 set_source_date_epoch_envvar ();
3893 case OPT_fdiagnostics_color_
:
3894 diagnostic_color_init (dc
, value
);
3900 /* Pass the rest of this option to the assembler. */
3902 /* Split the argument at commas. */
3904 for (j
= 0; arg
[j
]; j
++)
3907 add_assembler_option (arg
+ prev
, j
- prev
);
3911 /* Record the part after the last comma. */
3912 add_assembler_option (arg
+ prev
, j
- prev
);
3920 /* Pass the rest of this option to the preprocessor. */
3922 /* Split the argument at commas. */
3924 for (j
= 0; arg
[j
]; j
++)
3927 add_preprocessor_option (arg
+ prev
, j
- prev
);
3931 /* Record the part after the last comma. */
3932 add_preprocessor_option (arg
+ prev
, j
- prev
);
3940 /* Split the argument at commas. */
3942 for (j
= 0; arg
[j
]; j
++)
3945 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3948 /* Record the part after the last comma. */
3949 add_infile (arg
+ prev
, "*");
3955 add_infile (arg
, "*");
3959 case OPT_Xpreprocessor
:
3960 add_preprocessor_option (arg
, strlen (arg
));
3964 case OPT_Xassembler
:
3965 add_assembler_option (arg
, strlen (arg
));
3970 /* POSIX allows separation of -l and the lib arg; canonicalize
3971 by concatenating -l with its arg */
3972 add_infile (concat ("-l", arg
, NULL
), "*");
3977 /* Similarly, canonicalize -L for linkers that may not accept
3978 separate arguments. */
3979 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
3984 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
3987 case OPT_save_temps
:
3988 save_temps_flag
= SAVE_TEMPS_CWD
;
3992 case OPT_save_temps_
:
3993 if (strcmp (arg
, "cwd") == 0)
3994 save_temps_flag
= SAVE_TEMPS_CWD
;
3995 else if (strcmp (arg
, "obj") == 0
3996 || strcmp (arg
, "object") == 0)
3997 save_temps_flag
= SAVE_TEMPS_OBJ
;
3999 fatal_error (input_location
, "%qs is an unknown -save-temps option",
4000 decoded
->orig_option_with_args_text
);
4003 case OPT_no_canonical_prefixes
:
4004 /* Already handled as a special case, so ignored here. */
4010 /* These options set the variables specified in common.opt
4011 automatically, but do need to be saved for spec
4017 struct user_specs
*user
= XNEW (struct user_specs
);
4019 user
->next
= (struct user_specs
*) 0;
4020 user
->filename
= arg
;
4021 if (user_specs_tail
)
4022 user_specs_tail
->next
= user
;
4024 user_specs_head
= user
;
4025 user_specs_tail
= user
;
4031 target_system_root
= arg
;
4032 target_system_root_changed
= 1;
4037 if (report_times_to_file
)
4038 fclose (report_times_to_file
);
4039 report_times_to_file
= fopen (arg
, "a");
4045 This is similar to -v except that there is no execution
4046 of the commands and the echoed arguments are quoted. It
4047 is intended for use in shell scripts to capture the
4048 driver-generated command line. */
4049 verbose_only_flag
++;
4056 size_t len
= strlen (arg
);
4058 /* Catch the case where the user has forgotten to append a
4059 directory separator to the path. Note, they may be using
4060 -B to add an executable name prefix, eg "i386-elf-", in
4061 order to distinguish between multiple installations of
4062 GCC in the same directory. Hence we must check to see
4063 if appending a directory separator actually makes a
4064 valid directory name. */
4065 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
4066 && is_directory (arg
, false))
4068 char *tmp
= XNEWVEC (char, len
+ 2);
4070 tmp
[len
] = DIR_SEPARATOR
;
4075 add_prefix (&exec_prefixes
, arg
, NULL
,
4076 PREFIX_PRIORITY_B_OPT
, 0, 0);
4077 add_prefix (&startfile_prefixes
, arg
, NULL
,
4078 PREFIX_PRIORITY_B_OPT
, 0, 0);
4079 add_prefix (&include_prefixes
, arg
, NULL
,
4080 PREFIX_PRIORITY_B_OPT
, 0, 0);
4091 if (!strcmp (spec_lang
, "none"))
4092 /* Suppress the warning if -xnone comes after the last input
4093 file, because alternate command interfaces like g++ might
4094 find it useful to place -xnone after each input file. */
4097 last_language_n_infiles
= n_infiles
;
4103 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4104 arg
= convert_filename (arg
, ! have_c
, 0);
4107 /* Save the output name in case -save-temps=obj was used. */
4108 save_temps_prefix
= xstrdup (arg
);
4109 /* On some systems, ld cannot handle "-o" without a space. So
4110 split the option from its argument. */
4111 save_switch ("-o", 1, &arg
, validated
, true);
4114 #ifdef ENABLE_DEFAULT_PIE
4116 /* -pie is turned on by default. */
4119 case OPT_static_libgcc
:
4120 case OPT_shared_libgcc
:
4121 case OPT_static_libgfortran
:
4122 case OPT_static_libstdc__
:
4123 /* These are always valid, since gcc.c itself understands the
4124 first two, gfortranspec.c understands -static-libgfortran and
4125 g++spec.c understands -static-libstdc++ */
4134 handle_foffload_option (arg
);
4138 /* Various driver options need no special processing at this
4139 point, having been handled in a prescan above or being
4140 handled by specs. */
4145 save_switch (decoded
->canonical_option
[0],
4146 decoded
->canonical_option_num_elements
- 1,
4147 &decoded
->canonical_option
[1], validated
, true);
4151 /* Put the driver's standard set of option handlers in *HANDLERS. */
4154 set_option_handlers (struct cl_option_handlers
*handlers
)
4156 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
4157 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
4158 handlers
->num_handlers
= 3;
4159 handlers
->handlers
[0].handler
= driver_handle_option
;
4160 handlers
->handlers
[0].mask
= CL_DRIVER
;
4161 handlers
->handlers
[1].handler
= common_handle_option
;
4162 handlers
->handlers
[1].mask
= CL_COMMON
;
4163 handlers
->handlers
[2].handler
= target_handle_option
;
4164 handlers
->handlers
[2].mask
= CL_TARGET
;
4167 /* Create the vector `switches' and its contents.
4168 Store its length in `n_switches'. */
4171 process_command (unsigned int decoded_options_count
,
4172 struct cl_decoded_option
*decoded_options
)
4176 char *tooldir_prefix
, *tooldir_prefix2
;
4177 char *(*get_relative_prefix
) (const char *, const char *,
4178 const char *) = NULL
;
4179 struct cl_option_handlers handlers
;
4182 gcc_exec_prefix
= env
.get ("GCC_EXEC_PREFIX");
4186 added_libraries
= 0;
4188 /* Figure compiler version from version string. */
4190 compiler_version
= temp1
= xstrdup (version_string
);
4192 for (; *temp1
; ++temp1
)
4201 /* Handle any -no-canonical-prefixes flag early, to assign the function
4202 that builds relative prefixes. This function creates default search
4203 paths that are needed later in normal option handling. */
4205 for (j
= 1; j
< decoded_options_count
; j
++)
4207 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
4209 get_relative_prefix
= make_relative_prefix_ignore_links
;
4213 if (! get_relative_prefix
)
4214 get_relative_prefix
= make_relative_prefix
;
4216 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
4217 see if we can create it from the pathname specified in
4218 decoded_options[0].arg. */
4220 gcc_libexec_prefix
= standard_libexec_prefix
;
4222 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
4223 if (!gcc_exec_prefix
)
4225 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4226 standard_bindir_prefix
,
4227 standard_exec_prefix
);
4228 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4229 standard_bindir_prefix
,
4230 standard_libexec_prefix
);
4231 if (gcc_exec_prefix
)
4232 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
4236 /* make_relative_prefix requires a program name, but
4237 GCC_EXEC_PREFIX is typically a directory name with a trailing
4238 / (which is ignored by make_relative_prefix), so append a
4240 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
4241 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
4242 standard_exec_prefix
,
4243 standard_libexec_prefix
);
4245 /* The path is unrelocated, so fallback to the original setting. */
4246 if (!gcc_libexec_prefix
)
4247 gcc_libexec_prefix
= standard_libexec_prefix
;
4253 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
4254 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
4255 or an automatically created GCC_EXEC_PREFIX from
4256 decoded_options[0].arg. */
4258 /* Do language-specific adjustment/addition of flags. */
4259 lang_specific_driver (&decoded_options
, &decoded_options_count
,
4262 if (gcc_exec_prefix
)
4264 int len
= strlen (gcc_exec_prefix
);
4266 if (len
> (int) sizeof ("/lib/gcc/") - 1
4267 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
4269 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
4270 if (IS_DIR_SEPARATOR (*temp
)
4271 && filename_ncmp (temp
+ 1, "lib", 3) == 0
4272 && IS_DIR_SEPARATOR (temp
[4])
4273 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
4274 len
-= sizeof ("/lib/gcc/") - 1;
4277 set_std_prefix (gcc_exec_prefix
, len
);
4278 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
4279 PREFIX_PRIORITY_LAST
, 0, 0);
4280 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
4281 PREFIX_PRIORITY_LAST
, 0, 0);
4284 /* COMPILER_PATH and LIBRARY_PATH have values
4285 that are lists of directory names with colons. */
4287 temp
= env
.get ("COMPILER_PATH");
4290 const char *startp
, *endp
;
4291 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4293 startp
= endp
= temp
;
4296 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4298 strncpy (nstore
, startp
, endp
- startp
);
4300 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4301 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4303 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4304 nstore
[endp
- startp
+ 1] = 0;
4307 nstore
[endp
- startp
] = 0;
4308 add_prefix (&exec_prefixes
, nstore
, 0,
4309 PREFIX_PRIORITY_LAST
, 0, 0);
4310 add_prefix (&include_prefixes
, nstore
, 0,
4311 PREFIX_PRIORITY_LAST
, 0, 0);
4314 endp
= startp
= endp
+ 1;
4321 temp
= env
.get (LIBRARY_PATH_ENV
);
4322 if (temp
&& *cross_compile
== '0')
4324 const char *startp
, *endp
;
4325 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4327 startp
= endp
= temp
;
4330 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4332 strncpy (nstore
, startp
, endp
- startp
);
4334 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4335 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4337 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4338 nstore
[endp
- startp
+ 1] = 0;
4341 nstore
[endp
- startp
] = 0;
4342 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4343 PREFIX_PRIORITY_LAST
, 0, 1);
4346 endp
= startp
= endp
+ 1;
4353 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4354 temp
= env
.get ("LPATH");
4355 if (temp
&& *cross_compile
== '0')
4357 const char *startp
, *endp
;
4358 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4360 startp
= endp
= temp
;
4363 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4365 strncpy (nstore
, startp
, endp
- startp
);
4367 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4368 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4370 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4371 nstore
[endp
- startp
+ 1] = 0;
4374 nstore
[endp
- startp
] = 0;
4375 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4376 PREFIX_PRIORITY_LAST
, 0, 1);
4379 endp
= startp
= endp
+ 1;
4386 /* Process the options and store input files and switches in their
4389 last_language_n_infiles
= -1;
4391 set_option_handlers (&handlers
);
4393 for (j
= 1; j
< decoded_options_count
; j
++)
4395 switch (decoded_options
[j
].opt_index
)
4407 for (j
= 1; j
< decoded_options_count
; j
++)
4409 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4411 const char *arg
= decoded_options
[j
].arg
;
4412 const char *p
= strrchr (arg
, '@');
4416 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4417 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4419 /* For LTO static archive support we handle input file
4420 specifications that are composed of a filename and
4421 an offset like FNAME@OFFSET. */
4424 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4425 && strlen (p
) == (unsigned int)consumed
)
4427 fname
= (char *)xmalloc (p
- arg
+ 1);
4428 memcpy (fname
, arg
, p
- arg
);
4429 fname
[p
- arg
] = '\0';
4430 /* Only accept non-stdin and existing FNAME parts, otherwise
4431 try with the full name. */
4432 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4435 fname
= xstrdup (arg
);
4439 fname
= xstrdup (arg
);
4441 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4443 if (fname
[0] == '@' && access (fname
+ 1, F_OK
) < 0)
4444 perror_with_name (fname
+ 1);
4446 perror_with_name (fname
);
4449 add_infile (arg
, spec_lang
);
4455 read_cmdline_option (&global_options
, &global_options_set
,
4456 decoded_options
+ j
, UNKNOWN_LOCATION
,
4457 CL_DRIVER
, &handlers
, global_dc
);
4460 /* If the user didn't specify any, default to all configured offload
4462 if (ENABLE_OFFLOADING
&& offload_targets
== NULL
)
4463 handle_foffload_option (OFFLOAD_TARGETS
);
4466 && strcmp (output_file
, "-") != 0
4467 && strcmp (output_file
, HOST_BIT_BUCKET
) != 0)
4470 for (i
= 0; i
< n_infiles
; i
++)
4471 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
4472 && canonical_filename_eq (infiles
[i
].name
, output_file
))
4473 fatal_error (input_location
,
4474 "input file %qs is the same as output file",
4478 if (output_file
!= NULL
&& output_file
[0] == '\0')
4479 fatal_error (input_location
, "output filename may not be empty");
4481 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4482 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4483 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4485 save_temps_length
= strlen (save_temps_prefix
);
4486 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4489 save_temps_length
-= strlen (temp
);
4490 save_temps_prefix
[save_temps_length
] = '\0';
4494 else if (save_temps_prefix
!= NULL
)
4496 free (save_temps_prefix
);
4497 save_temps_prefix
= NULL
;
4500 if (save_temps_flag
&& use_pipes
)
4502 /* -save-temps overrides -pipe, so that temp files are produced */
4503 if (save_temps_flag
)
4504 warning (0, "-pipe ignored because -save-temps specified");
4510 const char *gcd
= env
.get ("GCC_COMPARE_DEBUG");
4512 if (gcd
&& gcd
[0] == '-')
4515 compare_debug_opt
= gcd
;
4517 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4520 compare_debug_opt
= "-gtoggle";
4523 else if (compare_debug
< 0)
4526 gcc_assert (!compare_debug_opt
);
4529 /* Set up the search paths. We add directories that we expect to
4530 contain GNU Toolchain components before directories specified by
4531 the machine description so that we will find GNU components (like
4532 the GNU assembler) before those of the host system. */
4534 /* If we don't know where the toolchain has been installed, use the
4535 configured-in locations. */
4536 if (!gcc_exec_prefix
)
4539 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4540 PREFIX_PRIORITY_LAST
, 1, 0);
4541 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4542 PREFIX_PRIORITY_LAST
, 2, 0);
4543 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4544 PREFIX_PRIORITY_LAST
, 2, 0);
4546 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4547 PREFIX_PRIORITY_LAST
, 1, 0);
4550 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4551 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
4552 dir_separator_str
, NULL
);
4554 /* Look for tools relative to the location from which the driver is
4555 running, or, if that is not available, the configured prefix. */
4557 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4558 spec_host_machine
, dir_separator_str
, spec_version
,
4559 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
4560 free (tooldir_prefix2
);
4562 add_prefix (&exec_prefixes
,
4563 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4564 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4565 add_prefix (&startfile_prefixes
,
4566 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4567 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4568 free (tooldir_prefix
);
4570 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4571 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4572 then consider it to relocate with the rest of the GCC installation
4573 if GCC_EXEC_PREFIX is set.
4574 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4575 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4577 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4578 standard_bindir_prefix
,
4579 target_system_root
);
4580 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4582 target_system_root
= tmp_prefix
;
4583 target_system_root_changed
= 1;
4588 /* More prefixes are enabled in main, after we read the specs file
4589 and determine whether this is cross-compilation or not. */
4591 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4592 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4594 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4595 environment variable. */
4596 if (compare_debug
== 2 || compare_debug
== 3)
4598 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4599 save_switch (opt
, 0, NULL
, false, true);
4603 /* Ensure we only invoke each subprocess once. */
4604 if (print_subprocess_help
|| print_help_list
|| print_version
)
4608 /* Create a dummy input file, so that we can pass
4609 the help option on to the various sub-processes. */
4610 add_infile ("help-dummy", "c");
4613 /* Decide if undefined variable references are allowed in specs. */
4615 /* -v alone is safe. --version and --help alone or together are safe. Note
4616 that -v would make them unsafe, as they'd then be run for subprocesses as
4617 well, the location of which might depend on variables possibly coming
4618 from self-specs. Note also that the command name is counted in
4619 decoded_options_count. */
4621 unsigned help_version_count
= 0;
4624 help_version_count
++;
4626 if (print_help_list
)
4627 help_version_count
++;
4629 spec_undefvar_allowed
=
4630 ((verbose_flag
&& decoded_options_count
== 2)
4631 || help_version_count
== decoded_options_count
- 1);
4634 switches
[n_switches
].part1
= 0;
4636 infiles
[n_infiles
].name
= 0;
4639 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4640 and place that in the environment. */
4643 set_collect_gcc_options (void)
4648 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4650 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4651 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4654 for (i
= 0; (int) i
< n_switches
; i
++)
4656 const char *const *args
;
4659 obstack_grow (&collect_obstack
, " ", 1);
4663 /* Ignore elided switches. */
4664 if ((switches
[i
].live_cond
4665 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4669 obstack_grow (&collect_obstack
, "'-", 2);
4670 q
= switches
[i
].part1
;
4671 while ((p
= strchr (q
, '\'')))
4673 obstack_grow (&collect_obstack
, q
, p
- q
);
4674 obstack_grow (&collect_obstack
, "'\\''", 4);
4677 obstack_grow (&collect_obstack
, q
, strlen (q
));
4678 obstack_grow (&collect_obstack
, "'", 1);
4680 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4682 obstack_grow (&collect_obstack
, " '", 2);
4684 while ((p
= strchr (q
, '\'')))
4686 obstack_grow (&collect_obstack
, q
, p
- q
);
4687 obstack_grow (&collect_obstack
, "'\\''", 4);
4690 obstack_grow (&collect_obstack
, q
, strlen (q
));
4691 obstack_grow (&collect_obstack
, "'", 1);
4694 obstack_grow (&collect_obstack
, "\0", 1);
4695 xputenv (XOBFINISH (&collect_obstack
, char *));
4698 /* Process a spec string, accumulating and running commands. */
4700 /* These variables describe the input file name.
4701 input_file_number is the index on outfiles of this file,
4702 so that the output file name can be stored for later use by %o.
4703 input_basename is the start of the part of the input file
4704 sans all directory names, and basename_length is the number
4705 of characters starting there excluding the suffix .c or whatever. */
4707 static const char *gcc_input_filename
;
4708 static int input_file_number
;
4709 size_t input_filename_length
;
4710 static int basename_length
;
4711 static int suffixed_basename_length
;
4712 static const char *input_basename
;
4713 static const char *input_suffix
;
4714 #ifndef HOST_LACKS_INODE_NUMBERS
4715 static struct stat input_stat
;
4717 static int input_stat_set
;
4719 /* The compiler used to process the current input file. */
4720 static struct compiler
*input_file_compiler
;
4722 /* These are variables used within do_spec and do_spec_1. */
4724 /* Nonzero if an arg has been started and not yet terminated
4725 (with space, tab or newline). */
4726 static int arg_going
;
4728 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4729 is a temporary file name. */
4730 static int delete_this_arg
;
4732 /* Nonzero means %w has been seen; the next arg to be terminated
4733 is the output file name of this compilation. */
4734 static int this_is_output_file
;
4736 /* Nonzero means %s has been seen; the next arg to be terminated
4737 is the name of a library file and we should try the standard
4738 search dirs for it. */
4739 static int this_is_library_file
;
4741 /* Nonzero means %T has been seen; the next arg to be terminated
4742 is the name of a linker script and we should try all of the
4743 standard search dirs for it. If it is found insert a --script
4744 command line switch and then substitute the full path in place,
4745 otherwise generate an error message. */
4746 static int this_is_linker_script
;
4748 /* Nonzero means that the input of this command is coming from a pipe. */
4749 static int input_from_pipe
;
4751 /* Nonnull means substitute this for any suffix when outputting a switches
4753 static const char *suffix_subst
;
4755 /* If there is an argument being accumulated, terminate it and store it. */
4758 end_going_arg (void)
4764 obstack_1grow (&obstack
, 0);
4765 string
= XOBFINISH (&obstack
, const char *);
4766 if (this_is_library_file
)
4767 string
= find_file (string
);
4768 if (this_is_linker_script
)
4770 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4772 if (full_script_path
== NULL
)
4774 error ("unable to locate default linker script %qs in the library search paths", string
);
4775 /* Script was not found on search path. */
4778 store_arg ("--script", false, false);
4779 string
= full_script_path
;
4781 store_arg (string
, delete_this_arg
, this_is_output_file
);
4782 if (this_is_output_file
)
4783 outfiles
[input_file_number
] = string
;
4789 /* Parse the WRAPPER string which is a comma separated list of the command line
4790 and insert them into the beginning of argbuf. */
4793 insert_wrapper (const char *wrapper
)
4797 char *buf
= xstrdup (wrapper
);
4799 unsigned int old_length
= argbuf
.length ();
4807 while ((p
= strchr (p
, ',')) != NULL
);
4809 argbuf
.safe_grow (old_length
+ n
);
4810 memmove (argbuf
.address () + n
,
4812 old_length
* sizeof (const_char_p
));
4826 while ((p
= strchr (p
, ',')) != NULL
);
4827 gcc_assert (i
== n
);
4830 /* Process the spec SPEC and run the commands specified therein.
4831 Returns 0 if the spec is successfully processed; -1 if failed. */
4834 do_spec (const char *spec
)
4838 value
= do_spec_2 (spec
);
4840 /* Force out any unfinished command.
4841 If -pipe, this forces out the last command if it ended in `|'. */
4844 if (argbuf
.length () > 0
4845 && !strcmp (argbuf
.last (), "|"))
4848 set_collect_gcc_options ();
4850 if (argbuf
.length () > 0)
4858 do_spec_2 (const char *spec
)
4864 delete_this_arg
= 0;
4865 this_is_output_file
= 0;
4866 this_is_library_file
= 0;
4867 this_is_linker_script
= 0;
4868 input_from_pipe
= 0;
4869 suffix_subst
= NULL
;
4871 result
= do_spec_1 (spec
, 0, NULL
);
4879 /* Process the given spec string and add any new options to the end
4880 of the switches/n_switches array. */
4883 do_option_spec (const char *name
, const char *spec
)
4885 unsigned int i
, value_count
, value_len
;
4886 const char *p
, *q
, *value
;
4887 char *tmp_spec
, *tmp_spec_p
;
4889 if (configure_default_options
[0].name
== NULL
)
4892 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4893 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4895 if (i
== ARRAY_SIZE (configure_default_options
))
4898 value
= configure_default_options
[i
].value
;
4899 value_len
= strlen (value
);
4901 /* Compute the size of the final spec. */
4904 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4910 /* Replace each %(VALUE) by the specified value. */
4911 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4912 + value_count
* (value_len
- strlen ("%(VALUE)")));
4913 tmp_spec_p
= tmp_spec
;
4915 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4917 memcpy (tmp_spec_p
, q
, p
- q
);
4918 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4919 memcpy (tmp_spec_p
, value
, value_len
);
4920 tmp_spec_p
+= value_len
;
4921 q
= p
+ strlen ("%(VALUE)");
4923 strcpy (tmp_spec_p
, q
);
4925 do_self_spec (tmp_spec
);
4928 /* Process the given spec string and add any new options to the end
4929 of the switches/n_switches array. */
4932 do_self_spec (const char *spec
)
4937 do_spec_1 (" ", 0, NULL
);
4939 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4940 do_self_specs adds the replacements to switches array, so it shouldn't
4941 be processed afterwards. */
4942 for (i
= 0; i
< n_switches
; i
++)
4943 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4944 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4946 if (argbuf
.length () > 0)
4948 const char **argbuf_copy
;
4949 struct cl_decoded_option
*decoded_options
;
4950 struct cl_option_handlers handlers
;
4951 unsigned int decoded_options_count
;
4954 /* Create a copy of argbuf with a dummy argv[0] entry for
4955 decode_cmdline_options_to_array. */
4956 argbuf_copy
= XNEWVEC (const char *,
4957 argbuf
.length () + 1);
4958 argbuf_copy
[0] = "";
4959 memcpy (argbuf_copy
+ 1, argbuf
.address (),
4960 argbuf
.length () * sizeof (const char *));
4962 decode_cmdline_options_to_array (argbuf
.length () + 1,
4964 CL_DRIVER
, &decoded_options
,
4965 &decoded_options_count
);
4968 set_option_handlers (&handlers
);
4970 for (j
= 1; j
< decoded_options_count
; j
++)
4972 switch (decoded_options
[j
].opt_index
)
4974 case OPT_SPECIAL_input_file
:
4975 /* Specs should only generate options, not input
4977 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4978 fatal_error (input_location
,
4979 "switch %qs does not start with %<-%>",
4980 decoded_options
[j
].arg
);
4982 fatal_error (input_location
,
4983 "spec-generated switch is just %<-%>");
4986 case OPT_fcompare_debug_second
:
4987 case OPT_fcompare_debug
:
4988 case OPT_fcompare_debug_
:
4990 /* Avoid duplicate processing of some options from
4991 compare-debug specs; just save them here. */
4992 save_switch (decoded_options
[j
].canonical_option
[0],
4993 (decoded_options
[j
].canonical_option_num_elements
4995 &decoded_options
[j
].canonical_option
[1], false, true);
4999 read_cmdline_option (&global_options
, &global_options_set
,
5000 decoded_options
+ j
, UNKNOWN_LOCATION
,
5001 CL_DRIVER
, &handlers
, global_dc
);
5006 free (decoded_options
);
5009 switches
[n_switches
].part1
= 0;
5013 /* Callback for processing %D and %I specs. */
5015 struct spec_path_info
{
5020 bool separate_options
;
5024 spec_path (char *path
, void *data
)
5026 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
5030 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
5033 if (info
->append_len
!= 0)
5035 len
= strlen (path
);
5036 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
5039 if (!is_directory (path
, true))
5042 do_spec_1 (info
->option
, 1, NULL
);
5043 if (info
->separate_options
)
5044 do_spec_1 (" ", 0, NULL
);
5046 if (info
->append_len
== 0)
5048 len
= strlen (path
);
5049 save
= path
[len
- 1];
5050 if (IS_DIR_SEPARATOR (path
[len
- 1]))
5051 path
[len
- 1] = '\0';
5054 do_spec_1 (path
, 1, NULL
);
5055 do_spec_1 (" ", 0, NULL
);
5057 /* Must not damage the original path. */
5058 if (info
->append_len
== 0)
5059 path
[len
- 1] = save
;
5064 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
5068 create_at_file (char **argv
)
5070 char *temp_file
= make_temp_file ("");
5071 char *at_argument
= concat ("@", temp_file
, NULL
);
5072 FILE *f
= fopen (temp_file
, "w");
5076 fatal_error (input_location
, "could not open temporary response file %s",
5079 status
= writeargv (argv
, f
);
5082 fatal_error (input_location
,
5083 "could not write to temporary response file %s",
5086 status
= fclose (f
);
5089 fatal_error (input_location
, "could not close temporary response file %s",
5092 store_arg (at_argument
, 0, 0);
5094 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5097 /* True if we should compile INFILE. */
5100 compile_input_file_p (struct infile
*infile
)
5102 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5103 if (infile
->incompiler
== input_file_compiler
)
5108 /* Process each member of VEC as a spec. */
5111 do_specs_vec (vec
<char_p
> vec
)
5116 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
5118 do_spec_1 (opt
, 1, NULL
);
5119 /* Make each accumulated option a separate argument. */
5120 do_spec_1 (" ", 0, NULL
);
5124 /* Process the sub-spec SPEC as a portion of a larger spec.
5125 This is like processing a whole spec except that we do
5126 not initialize at the beginning and we do not supply a
5127 newline by default at the end.
5128 INSWITCH nonzero means don't process %-sequences in SPEC;
5129 in this case, % is treated as an ordinary character.
5130 This is used while substituting switches.
5131 INSWITCH nonzero also causes SPC not to terminate an argument.
5133 Value is zero unless a line was finished
5134 and the command on that line reported an error. */
5137 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5139 const char *p
= spec
;
5144 /* If it's an empty string argument to a switch, keep it as is. */
5145 if (inswitch
&& !*p
)
5149 /* If substituting a switch, treat all chars like letters.
5150 Otherwise, NL, SPC, TAB and % are special. */
5151 switch (inswitch
? 'a' : c
)
5156 if (argbuf
.length () > 0
5157 && !strcmp (argbuf
.last (), "|"))
5159 /* A `|' before the newline means use a pipe here,
5160 but only if -pipe was specified.
5161 Otherwise, execute now and don't pass the `|' as an arg. */
5164 input_from_pipe
= 1;
5171 set_collect_gcc_options ();
5173 if (argbuf
.length () > 0)
5179 /* Reinitialize for a new command, and for a new argument. */
5182 delete_this_arg
= 0;
5183 this_is_output_file
= 0;
5184 this_is_library_file
= 0;
5185 this_is_linker_script
= 0;
5186 input_from_pipe
= 0;
5193 obstack_1grow (&obstack
, c
);
5201 /* Reinitialize for a new argument. */
5202 delete_this_arg
= 0;
5203 this_is_output_file
= 0;
5204 this_is_library_file
= 0;
5205 this_is_linker_script
= 0;
5212 fatal_error (input_location
, "spec %qs invalid", spec
);
5215 if (save_temps_length
)
5216 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5218 obstack_grow (&obstack
, input_basename
, basename_length
);
5219 if (compare_debug
< 0)
5220 obstack_grow (&obstack
, ".gk", 3);
5225 if (save_temps_length
)
5226 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5228 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
5229 if (compare_debug
< 0)
5230 obstack_grow (&obstack
, ".gk", 3);
5235 delete_this_arg
= 2;
5238 /* Dump out the directories specified with LIBRARY_PATH,
5239 followed by the absolute directories
5240 that we search for startfiles. */
5243 struct spec_path_info info
;
5246 info
.append_len
= 0;
5247 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5248 /* Used on systems which record the specified -L dirs
5249 and use them to search for dynamic linking.
5250 Relative directories always come from -B,
5251 and it is better not to use them for searching
5252 at run time. In particular, stage1 loses. */
5253 info
.omit_relative
= true;
5255 info
.omit_relative
= false;
5257 info
.separate_options
= false;
5259 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5264 /* %efoo means report an error with `foo' as error message
5265 and don't execute any more commands for this file. */
5269 while (*p
!= 0 && *p
!= '\n')
5271 buf
= (char *) alloca (p
- q
+ 1);
5272 strncpy (buf
, q
, p
- q
);
5274 error ("%s", _(buf
));
5279 /* %nfoo means report a notice with `foo' on stderr. */
5283 while (*p
!= 0 && *p
!= '\n')
5285 buf
= (char *) alloca (p
- q
+ 1);
5286 strncpy (buf
, q
, p
- q
);
5288 inform (0, "%s", _(buf
));
5298 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5299 defined, and it is not a directory, and it is
5300 writable, use it. Otherwise, treat this like any
5301 other temporary file. */
5303 if ((!save_temps_flag
)
5304 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5305 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5307 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5308 strlen (HOST_BIT_BUCKET
));
5309 delete_this_arg
= 0;
5314 goto create_temp_file
;
5318 obstack_1grow (&obstack
, '-');
5319 delete_this_arg
= 0;
5322 /* consume suffix */
5323 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5325 if (p
[0] == '%' && p
[1] == 'O')
5330 goto create_temp_file
;
5334 /* consume suffix */
5335 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5337 if (p
[0] == '%' && p
[1] == 'O')
5342 goto create_temp_file
;
5348 struct temp_name
*t
;
5350 const char *suffix
= p
;
5351 char *saved_suffix
= NULL
;
5353 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5355 suffix_length
= p
- suffix
;
5356 if (p
[0] == '%' && p
[1] == 'O')
5359 /* We don't support extra suffix characters after %O. */
5360 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5361 fatal_error (input_location
,
5362 "spec %qs has invalid %<%%0%c%>", spec
, *p
);
5363 if (suffix_length
== 0)
5364 suffix
= TARGET_OBJECT_SUFFIX
;
5368 = XNEWVEC (char, suffix_length
5369 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
5370 strncpy (saved_suffix
, suffix
, suffix_length
);
5371 strcpy (saved_suffix
+ suffix_length
,
5372 TARGET_OBJECT_SUFFIX
);
5374 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5377 if (compare_debug
< 0)
5379 suffix
= concat (".gk", suffix
, NULL
);
5383 /* If -save-temps=obj and -o were specified, use that for the
5385 if (save_temps_length
)
5388 temp_filename_length
5389 = save_temps_length
+ suffix_length
+ 1;
5390 tmp
= (char *) alloca (temp_filename_length
);
5391 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5392 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5393 tmp
[save_temps_length
+ suffix_length
] = '\0';
5394 temp_filename
= save_string (tmp
, save_temps_length
5396 obstack_grow (&obstack
, temp_filename
,
5397 temp_filename_length
);
5399 delete_this_arg
= 0;
5403 /* If the gcc_input_filename has the same suffix specified
5404 for the %g, %u, or %U, and -save-temps is specified,
5405 we could end up using that file as an intermediate
5406 thus clobbering the user's source file (.e.g.,
5407 gcc -save-temps foo.s would clobber foo.s with the
5408 output of cpp0). So check for this condition and
5409 generate a temp file as the intermediate. */
5411 if (save_temps_flag
)
5414 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5415 tmp
= (char *) alloca (temp_filename_length
);
5416 memcpy (tmp
, input_basename
, basename_length
);
5417 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5418 tmp
[basename_length
+ suffix_length
] = '\0';
5419 temp_filename
= tmp
;
5421 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
5423 #ifndef HOST_LACKS_INODE_NUMBERS
5424 struct stat st_temp
;
5426 /* Note, set_input() resets input_stat_set to 0. */
5427 if (input_stat_set
== 0)
5429 input_stat_set
= stat (gcc_input_filename
,
5431 if (input_stat_set
>= 0)
5435 /* If we have the stat for the gcc_input_filename
5436 and we can do the stat for the temp_filename
5437 then the they could still refer to the same
5438 file if st_dev/st_ino's are the same. */
5439 if (input_stat_set
!= 1
5440 || stat (temp_filename
, &st_temp
) < 0
5441 || input_stat
.st_dev
!= st_temp
.st_dev
5442 || input_stat
.st_ino
!= st_temp
.st_ino
)
5444 /* Just compare canonical pathnames. */
5445 char* input_realname
= lrealpath (gcc_input_filename
);
5446 char* temp_realname
= lrealpath (temp_filename
);
5447 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
5448 free (input_realname
);
5449 free (temp_realname
);
5454 = save_string (temp_filename
,
5455 temp_filename_length
- 1);
5456 obstack_grow (&obstack
, temp_filename
,
5457 temp_filename_length
);
5459 delete_this_arg
= 0;
5465 /* See if we already have an association of %g/%u/%U and
5467 for (t
= temp_names
; t
; t
= t
->next
)
5468 if (t
->length
== suffix_length
5469 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5470 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5473 /* Make a new association if needed. %u and %j
5475 if (t
== 0 || c
== 'u' || c
== 'j')
5479 t
= XNEW (struct temp_name
);
5480 t
->next
= temp_names
;
5483 t
->length
= suffix_length
;
5486 t
->suffix
= saved_suffix
;
5487 saved_suffix
= NULL
;
5490 t
->suffix
= save_string (suffix
, suffix_length
);
5491 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5492 temp_filename
= make_temp_file (t
->suffix
);
5493 temp_filename_length
= strlen (temp_filename
);
5494 t
->filename
= temp_filename
;
5495 t
->filename_length
= temp_filename_length
;
5498 free (saved_suffix
);
5500 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5501 delete_this_arg
= 1;
5509 if (at_file_supplied
)
5511 /* We are going to expand `%i' to `@FILE', where FILE
5512 is a newly-created temporary filename. The filenames
5513 that would usually be expanded in place of %o will be
5514 written to the temporary file. */
5519 for (i
= 0; i
< n_infiles
; i
++)
5520 if (compile_input_file_p (&infiles
[i
]))
5523 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5525 /* Copy the strings over. */
5526 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5527 if (compile_input_file_p (&infiles
[i
]))
5529 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5530 infiles
[i
].compiled
= true;
5535 create_at_file (argv
);
5538 for (i
= 0; (int) i
< n_infiles
; i
++)
5539 if (compile_input_file_p (&infiles
[i
]))
5541 store_arg (infiles
[i
].name
, 0, 0);
5542 infiles
[i
].compiled
= true;
5547 obstack_grow (&obstack
, gcc_input_filename
,
5548 input_filename_length
);
5555 struct spec_path_info info
;
5559 do_spec_1 ("-imultilib", 1, NULL
);
5560 /* Make this a separate argument. */
5561 do_spec_1 (" ", 0, NULL
);
5562 do_spec_1 (multilib_dir
, 1, NULL
);
5563 do_spec_1 (" ", 0, NULL
);
5568 do_spec_1 ("-imultiarch", 1, NULL
);
5569 /* Make this a separate argument. */
5570 do_spec_1 (" ", 0, NULL
);
5571 do_spec_1 (multiarch_dir
, 1, NULL
);
5572 do_spec_1 (" ", 0, NULL
);
5575 if (gcc_exec_prefix
)
5577 do_spec_1 ("-iprefix", 1, NULL
);
5578 /* Make this a separate argument. */
5579 do_spec_1 (" ", 0, NULL
);
5580 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5581 do_spec_1 (" ", 0, NULL
);
5584 if (target_system_root_changed
||
5585 (target_system_root
&& target_sysroot_hdrs_suffix
))
5587 do_spec_1 ("-isysroot", 1, NULL
);
5588 /* Make this a separate argument. */
5589 do_spec_1 (" ", 0, NULL
);
5590 do_spec_1 (target_system_root
, 1, NULL
);
5591 if (target_sysroot_hdrs_suffix
)
5592 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5593 do_spec_1 (" ", 0, NULL
);
5596 info
.option
= "-isystem";
5597 info
.append
= "include";
5598 info
.append_len
= strlen (info
.append
);
5599 info
.omit_relative
= false;
5600 info
.separate_options
= true;
5602 for_each_path (&include_prefixes
, false, info
.append_len
,
5605 info
.append
= "include-fixed";
5606 if (*sysroot_hdrs_suffix_spec
)
5607 info
.append
= concat (info
.append
, dir_separator_str
,
5608 multilib_dir
, NULL
);
5609 info
.append_len
= strlen (info
.append
);
5610 for_each_path (&include_prefixes
, false, info
.append_len
,
5617 int max
= n_infiles
;
5618 max
+= lang_specific_extra_outfiles
;
5620 if (HAVE_GNU_LD
&& at_file_supplied
)
5622 /* We are going to expand `%o' to `@FILE', where FILE
5623 is a newly-created temporary filename. The filenames
5624 that would usually be expanded in place of %o will be
5625 written to the temporary file. */
5630 /* Convert OUTFILES into a form suitable for writeargv. */
5632 /* Determine how many are non-NULL. */
5633 for (n_files
= 0, i
= 0; i
< max
; i
++)
5634 n_files
+= outfiles
[i
] != NULL
;
5636 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5638 /* Copy the strings over. */
5639 for (i
= 0, j
= 0; i
< max
; i
++)
5642 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5647 create_at_file (argv
);
5650 for (i
= 0; i
< max
; i
++)
5652 store_arg (outfiles
[i
], 0, 0);
5657 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5662 this_is_library_file
= 1;
5666 this_is_linker_script
= 1;
5670 outfiles
[input_file_number
] = NULL
;
5674 this_is_output_file
= 1;
5679 unsigned int cur_index
= argbuf
.length ();
5680 /* Handle the {...} following the %W. */
5682 fatal_error (input_location
,
5683 "spec %qs has invalid %<%%W%c%>", spec
, *p
);
5684 p
= handle_braces (p
+ 1);
5688 /* If any args were output, mark the last one for deletion
5690 if (argbuf
.length () != cur_index
)
5691 record_temp_file (argbuf
.last (), 0, 1);
5695 /* %x{OPTION} records OPTION for %X to output. */
5703 /* Skip past the option value and make a copy. */
5705 fatal_error (input_location
,
5706 "spec %qs has invalid %<%%x%c%>", spec
, *p
);
5709 string
= save_string (p1
+ 1, p
- p1
- 2);
5711 /* See if we already recorded this option. */
5712 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5713 if (! strcmp (string
, opt
))
5719 /* This option is new; add it. */
5720 add_linker_option (string
, strlen (string
));
5725 /* Dump out the options accumulated previously using %x. */
5727 do_specs_vec (linker_options
);
5730 /* Dump out the options accumulated previously using -Wa,. */
5732 do_specs_vec (assembler_options
);
5735 /* Dump out the options accumulated previously using -Wp,. */
5737 do_specs_vec (preprocessor_options
);
5740 /* Here are digits and numbers that just process
5741 a certain constant string as a spec. */
5744 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5750 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5756 value
= do_spec_1 (asm_spec
, 0, NULL
);
5762 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5769 const char *const spec
5770 = (input_file_compiler
->cpp_spec
5771 ? input_file_compiler
->cpp_spec
5773 value
= do_spec_1 (spec
, 0, NULL
);
5780 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5786 value
= do_spec_1 (link_spec
, 0, NULL
);
5792 value
= do_spec_1 (lib_spec
, 0, NULL
);
5798 if (multilib_os_dir
== NULL
)
5799 obstack_1grow (&obstack
, '.');
5801 obstack_grow (&obstack
, multilib_os_dir
,
5802 strlen (multilib_os_dir
));
5806 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5812 /* We assume there is a directory
5813 separator at the end of this string. */
5814 if (target_system_root
)
5816 obstack_grow (&obstack
, target_system_root
,
5817 strlen (target_system_root
));
5818 if (target_sysroot_suffix
)
5819 obstack_grow (&obstack
, target_sysroot_suffix
,
5820 strlen (target_sysroot_suffix
));
5825 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5830 /* Here we define characters other than letters and digits. */
5833 p
= handle_braces (p
);
5839 p
= handle_spec_function (p
, NULL
);
5845 obstack_1grow (&obstack
, '%');
5852 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5854 suffix_subst
= save_string (p
- 1, len
+ 1);
5859 /* Henceforth ignore the option(s) matching the pattern
5865 int have_wildcard
= 0;
5870 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5872 switch_option
= SWITCH_IGNORE
;
5874 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5877 if (p
[len
-1] == '*')
5880 for (i
= 0; i
< n_switches
; i
++)
5881 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5882 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5884 switches
[i
].live_cond
|= switch_option
;
5885 /* User switch be validated from validate_all_switches.
5886 when the definition is seen from the spec file.
5887 If not defined anywhere, will be rejected. */
5888 if (switches
[i
].known
)
5889 switches
[i
].validated
= true;
5897 if (soft_matched_part
)
5899 if (soft_matched_part
[0])
5900 do_spec_1 (soft_matched_part
, 1, NULL
);
5901 /* Only insert a space after the substitution if it is at the
5902 end of the current sequence. So if:
5904 "%{foo=*:bar%*}%{foo=*:one%*two}"
5906 matches -foo=hello then it will produce:
5908 barhello onehellotwo
5910 if (*p
== 0 || *p
== '}')
5911 do_spec_1 (" ", 0, NULL
);
5914 /* Catch the case where a spec string contains something like
5915 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5916 hand side of the :. */
5917 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5920 /* Process a string found as the value of a spec given by name.
5921 This feature allows individual machine descriptions
5922 to add and use their own specs. */
5925 const char *name
= p
;
5926 struct spec_list
*sl
;
5929 /* The string after the S/P is the name of a spec that is to be
5931 while (*p
&& *p
!= ')')
5934 /* See if it's in the list. */
5935 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5936 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5938 name
= *(sl
->ptr_spec
);
5940 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
5948 value
= do_spec_1 (name
, 0, NULL
);
5953 /* Discard the closing paren. */
5960 error ("spec failure: unrecognized spec option %qc", c
);
5966 /* Backslash: treat next character as ordinary. */
5971 /* Ordinary character: put it into the current argument. */
5972 obstack_1grow (&obstack
, c
);
5976 /* End of string. If we are processing a spec function, we need to
5977 end any pending argument. */
5978 if (processing_spec_function
)
5984 /* Look up a spec function. */
5986 static const struct spec_function
*
5987 lookup_spec_function (const char *name
)
5989 const struct spec_function
*sf
;
5991 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5992 if (strcmp (sf
->name
, name
) == 0)
5998 /* Evaluate a spec function. */
6001 eval_spec_function (const char *func
, const char *args
)
6003 const struct spec_function
*sf
;
6004 const char *funcval
;
6006 /* Saved spec processing context. */
6007 vec
<const_char_p
> save_argbuf
;
6010 int save_delete_this_arg
;
6011 int save_this_is_output_file
;
6012 int save_this_is_library_file
;
6013 int save_input_from_pipe
;
6014 int save_this_is_linker_script
;
6015 const char *save_suffix_subst
;
6017 int save_growing_size
;
6018 void *save_growing_value
= NULL
;
6020 sf
= lookup_spec_function (func
);
6022 fatal_error (input_location
, "unknown spec function %qs", func
);
6024 /* Push the spec processing context. */
6025 save_argbuf
= argbuf
;
6027 save_arg_going
= arg_going
;
6028 save_delete_this_arg
= delete_this_arg
;
6029 save_this_is_output_file
= this_is_output_file
;
6030 save_this_is_library_file
= this_is_library_file
;
6031 save_this_is_linker_script
= this_is_linker_script
;
6032 save_input_from_pipe
= input_from_pipe
;
6033 save_suffix_subst
= suffix_subst
;
6035 /* If we have some object growing now, finalize it so the args and function
6036 eval proceed from a cleared context. This is needed to prevent the first
6037 constructed arg from mistakenly including the growing value. We'll push
6038 this value back on the obstack once the function evaluation is done, to
6039 restore a consistent processing context for our caller. This is fine as
6040 the address of growing objects isn't guaranteed to remain stable until
6041 they are finalized, and we expect this situation to be rare enough for
6042 the extra copy not to be an issue. */
6043 save_growing_size
= obstack_object_size (&obstack
);
6044 if (save_growing_size
> 0)
6045 save_growing_value
= obstack_finish (&obstack
);
6047 /* Create a new spec processing context, and build the function
6051 if (do_spec_2 (args
) < 0)
6052 fatal_error (input_location
, "error in args to spec function %qs", func
);
6054 /* argbuf_index is an index for the next argument to be inserted, and
6055 so contains the count of the args already inserted. */
6057 funcval
= (*sf
->func
) (argbuf
.length (),
6060 /* Pop the spec processing context. */
6062 argbuf
= save_argbuf
;
6064 arg_going
= save_arg_going
;
6065 delete_this_arg
= save_delete_this_arg
;
6066 this_is_output_file
= save_this_is_output_file
;
6067 this_is_library_file
= save_this_is_library_file
;
6068 this_is_linker_script
= save_this_is_linker_script
;
6069 input_from_pipe
= save_input_from_pipe
;
6070 suffix_subst
= save_suffix_subst
;
6072 if (save_growing_size
> 0)
6073 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
6078 /* Handle a spec function call of the form:
6082 ARGS is processed as a spec in a separate context and split into an
6083 argument vector in the normal fashion. The function returns a string
6084 containing a spec which we then process in the caller's context, or
6085 NULL if no processing is required.
6087 If RETVAL_NONNULL is not NULL, then store a bool whether function
6088 returned non-NULL. */
6091 handle_spec_function (const char *p
, bool *retval_nonnull
)
6094 const char *endp
, *funcval
;
6097 processing_spec_function
++;
6099 /* Get the function name. */
6100 for (endp
= p
; *endp
!= '\0'; endp
++)
6102 if (*endp
== '(') /* ) */
6104 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6105 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6106 fatal_error (input_location
, "malformed spec function name");
6108 if (*endp
!= '(') /* ) */
6109 fatal_error (input_location
, "no arguments for spec function");
6110 func
= save_string (p
, endp
- p
);
6113 /* Get the arguments. */
6114 for (count
= 0; *endp
!= '\0'; endp
++)
6123 else if (*endp
== '(') /* ) */
6128 fatal_error (input_location
, "malformed spec function arguments");
6129 args
= save_string (p
, endp
- p
);
6132 /* p now points to just past the end of the spec function expression. */
6134 funcval
= eval_spec_function (func
, args
);
6135 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6138 *retval_nonnull
= funcval
!= NULL
;
6143 processing_spec_function
--;
6148 /* Inline subroutine of handle_braces. Returns true if the current
6149 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6151 input_suffix_matches (const char *atom
, const char *end_atom
)
6153 return (input_suffix
6154 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6155 && input_suffix
[end_atom
- atom
] == '\0');
6158 /* Subroutine of handle_braces. Returns true if the current
6159 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6161 input_spec_matches (const char *atom
, const char *end_atom
)
6163 return (input_file_compiler
6164 && input_file_compiler
->suffix
6165 && input_file_compiler
->suffix
[0] != '\0'
6166 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6168 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6171 /* Subroutine of handle_braces. Returns true if a switch
6172 matching the atom bracketed by ATOM and END_ATOM appeared on the
6175 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6178 int len
= end_atom
- atom
;
6179 int plen
= starred
? len
: -1;
6181 for (i
= 0; i
< n_switches
; i
++)
6182 if (!strncmp (switches
[i
].part1
, atom
, len
)
6183 && (starred
|| switches
[i
].part1
[len
] == '\0')
6184 && check_live_switch (i
, plen
))
6187 /* Check if a switch with separated form matching the atom.
6188 We check -D and -U switches. */
6189 else if (switches
[i
].args
!= 0)
6191 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
6192 && *switches
[i
].part1
== atom
[0])
6194 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
6195 && (starred
|| (switches
[i
].part1
[1] == '\0'
6196 && switches
[i
].args
[0][len
- 1] == '\0'))
6197 && check_live_switch (i
, (starred
? 1 : -1)))
6205 /* Inline subroutine of handle_braces. Mark all of the switches which
6206 match ATOM (extends to END_ATOM; STARRED indicates whether there
6207 was a star after the atom) for later processing. */
6209 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6212 int len
= end_atom
- atom
;
6213 int plen
= starred
? len
: -1;
6215 for (i
= 0; i
< n_switches
; i
++)
6216 if (!strncmp (switches
[i
].part1
, atom
, len
)
6217 && (starred
|| switches
[i
].part1
[len
] == '\0')
6218 && check_live_switch (i
, plen
))
6219 switches
[i
].ordering
= 1;
6222 /* Inline subroutine of handle_braces. Process all the currently
6223 marked switches through give_switch, and clear the marks. */
6225 process_marked_switches (void)
6229 for (i
= 0; i
< n_switches
; i
++)
6230 if (switches
[i
].ordering
== 1)
6232 switches
[i
].ordering
= 0;
6237 /* Handle a %{ ... } construct. P points just inside the leading {.
6238 Returns a pointer one past the end of the brace block, or 0
6239 if we call do_spec_1 and that returns -1. */
6242 handle_braces (const char *p
)
6244 const char *atom
, *end_atom
;
6245 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6246 char *esc_buf
= NULL
, *d_esc_buf
= NULL
;
6248 const char *orig
= p
;
6256 bool a_must_be_last
= false;
6257 bool ordered_set
= false;
6258 bool disjunct_set
= false;
6259 bool disj_matched
= false;
6260 bool disj_starred
= true;
6261 bool n_way_choice
= false;
6262 bool n_way_matched
= false;
6264 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6271 /* Scan one "atom" (S in the description above of %{}, possibly
6272 with '!', '.', '@', ',', or '*' modifiers). */
6274 a_is_suffix
= false;
6275 a_is_starred
= false;
6276 a_is_negated
= false;
6277 a_is_spectype
= false;
6281 p
++, a_is_negated
= true;
6284 if (*p
== '%' && p
[1] == ':')
6288 p
= handle_spec_function (p
+ 2, &a_matched
);
6293 p
++, a_is_suffix
= true;
6295 p
++, a_is_spectype
= true;
6299 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6300 || *p
== ',' || *p
== '.' || *p
== '@' || *p
== '\\')
6306 fatal_error (input_location
,
6307 "braced spec %qs ends in escape", orig
);
6319 if (esc_buf
&& esc_buf
!= d_esc_buf
)
6322 ep
= esc_buf
= (char *) xmalloc (end_atom
- atom
- esc
+ 1);
6323 for (ap
= atom
; ap
!= end_atom
; ap
++, ep
++)
6335 p
++, a_is_starred
= 1;
6342 /* Substitute the switch(es) indicated by the current atom. */
6344 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6345 || a_is_spectype
|| atom
== end_atom
)
6348 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6351 process_marked_switches ();
6355 /* Substitute some text if the current atom appears as a switch
6357 disjunct_set
= true;
6361 if (atom
&& atom
== end_atom
)
6363 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6364 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6368 /* An empty term may appear as the last choice of an
6369 N-way choice set; it means "otherwise". */
6370 a_must_be_last
= true;
6371 disj_matched
= !n_way_matched
;
6372 disj_starred
= false;
6376 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6380 disj_starred
= false;
6382 /* Don't bother testing this atom if we already have a
6384 if (!disj_matched
&& !n_way_matched
)
6387 /* a_matched is already set by handle_spec_function. */;
6388 else if (a_is_suffix
)
6389 a_matched
= input_suffix_matches (atom
, end_atom
);
6390 else if (a_is_spectype
)
6391 a_matched
= input_spec_matches (atom
, end_atom
);
6393 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6395 if (a_matched
!= a_is_negated
)
6397 disj_matched
= true;
6399 d_end_atom
= end_atom
;
6400 d_esc_buf
= esc_buf
;
6407 /* Found the body, that is, the text to substitute if the
6408 current disjunction matches. */
6409 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6410 disj_matched
&& !n_way_matched
);
6414 /* If we have an N-way choice, reset state for the next
6418 n_way_choice
= true;
6419 n_way_matched
|= disj_matched
;
6420 disj_matched
= false;
6421 disj_starred
= true;
6422 d_atom
= d_end_atom
= NULL
;
6431 while (*p
++ != '}');
6434 if (d_esc_buf
&& d_esc_buf
!= esc_buf
)
6442 fatal_error (input_location
, "braced spec %qs is invalid at %qc", orig
, *p
);
6447 /* Subroutine of handle_braces. Scan and process a brace substitution body
6448 (X in the description of %{} syntax). P points one past the colon;
6449 ATOM and END_ATOM bracket the first atom which was found to be true
6450 (present) in the current disjunction; STARRED indicates whether all
6451 the atoms in the current disjunction were starred (for syntax validation);
6452 MATCHED indicates whether the disjunction matched or not, and therefore
6453 whether or not the body is to be processed through do_spec_1 or just
6454 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6458 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6459 int starred
, int matched
)
6461 const char *body
, *end_body
;
6462 unsigned int nesting_level
;
6463 bool have_subst
= false;
6465 /* Locate the closing } or ;, honoring nested braces.
6466 Trim trailing whitespace. */
6475 if (!--nesting_level
)
6478 else if (*p
== ';' && nesting_level
== 1)
6480 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6482 else if (*p
== '\0')
6488 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6491 if (have_subst
&& !starred
)
6496 /* Copy the substitution body to permanent storage and execute it.
6497 If have_subst is false, this is a simple matter of running the
6498 body through do_spec_1... */
6499 char *string
= save_string (body
, end_body
- body
);
6502 if (do_spec_1 (string
, 0, NULL
) < 0)
6510 /* ... but if have_subst is true, we have to process the
6511 body once for each matching switch, with %* set to the
6512 variant part of the switch. */
6513 unsigned int hard_match_len
= end_atom
- atom
;
6516 for (i
= 0; i
< n_switches
; i
++)
6517 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6518 && check_live_switch (i
, hard_match_len
))
6520 if (do_spec_1 (string
, 0,
6521 &switches
[i
].part1
[hard_match_len
]) < 0)
6526 /* Pass any arguments this switch has. */
6528 suffix_subst
= NULL
;
6537 fatal_error (input_location
, "braced spec body %qs is invalid", body
);
6540 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6541 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6542 spec, or -1 if either exact match or %* is used.
6544 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
6545 whose value does not begin with "no-" is obsoleted by the same value
6546 with the "no-", similarly for a switch with the "no-" prefix. */
6549 check_live_switch (int switchnum
, int prefix_length
)
6551 const char *name
= switches
[switchnum
].part1
;
6554 /* If we already processed this switch and determined if it was
6555 live or not, return our past determination. */
6556 if (switches
[switchnum
].live_cond
!= 0)
6557 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6558 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6559 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6562 /* In the common case of {<at-most-one-letter>*}, a negating
6563 switch would always match, so ignore that case. We will just
6564 send the conflicting switches to the compiler phase. */
6565 if (prefix_length
>= 0 && prefix_length
<= 1)
6568 /* Now search for duplicate in a manner that depends on the name. */
6572 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6573 if (switches
[i
].part1
[0] == 'O')
6575 switches
[switchnum
].validated
= true;
6576 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6581 case 'W': case 'f': case 'm': case 'g':
6582 if (! strncmp (name
+ 1, "no-", 3))
6584 /* We have Xno-YYY, search for XYYY. */
6585 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6586 if (switches
[i
].part1
[0] == name
[0]
6587 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6589 /* --specs are validated with the validate_switches mechanism. */
6590 if (switches
[switchnum
].known
)
6591 switches
[switchnum
].validated
= true;
6592 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6598 /* We have XYYY, search for Xno-YYY. */
6599 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6600 if (switches
[i
].part1
[0] == name
[0]
6601 && switches
[i
].part1
[1] == 'n'
6602 && switches
[i
].part1
[2] == 'o'
6603 && switches
[i
].part1
[3] == '-'
6604 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6606 /* --specs are validated with the validate_switches mechanism. */
6607 if (switches
[switchnum
].known
)
6608 switches
[switchnum
].validated
= true;
6609 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6616 /* Otherwise the switch is live. */
6617 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6621 /* Pass a switch to the current accumulating command
6622 in the same form that we received it.
6623 SWITCHNUM identifies the switch; it is an index into
6624 the vector of switches gcc received, which is `switches'.
6625 This cannot fail since it never finishes a command line.
6627 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6630 give_switch (int switchnum
, int omit_first_word
)
6632 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6635 if (!omit_first_word
)
6637 do_spec_1 ("-", 0, NULL
);
6638 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6641 if (switches
[switchnum
].args
!= 0)
6644 for (p
= switches
[switchnum
].args
; *p
; p
++)
6646 const char *arg
= *p
;
6648 do_spec_1 (" ", 0, NULL
);
6651 unsigned length
= strlen (arg
);
6654 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6655 if (arg
[length
] == '.')
6657 (CONST_CAST (char *, arg
))[length
] = 0;
6661 do_spec_1 (arg
, 1, NULL
);
6663 (CONST_CAST (char *, arg
))[length
] = '.';
6664 do_spec_1 (suffix_subst
, 1, NULL
);
6667 do_spec_1 (arg
, 1, NULL
);
6671 do_spec_1 (" ", 0, NULL
);
6672 switches
[switchnum
].validated
= true;
6675 /* Print GCC configuration (e.g. version, thread model, target,
6676 configuration_arguments) to a given FILE. */
6679 print_configuration (FILE *file
)
6684 fnotice (file
, "Target: %s\n", spec_machine
);
6685 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
6687 #ifdef THREAD_MODEL_SPEC
6688 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6689 but there's no point in doing all this processing just to get
6690 thread_model back. */
6691 obstack_init (&obstack
);
6692 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6693 obstack_1grow (&obstack
, '\0');
6694 thrmod
= XOBFINISH (&obstack
, const char *);
6696 thrmod
= thread_model
;
6699 fnotice (file
, "Thread model: %s\n", thrmod
);
6701 /* compiler_version is truncated at the first space when initialized
6702 from version string, so truncate version_string at the first space
6703 before comparing. */
6704 for (n
= 0; version_string
[n
]; n
++)
6705 if (version_string
[n
] == ' ')
6708 if (! strncmp (version_string
, compiler_version
, n
)
6709 && compiler_version
[n
] == 0)
6710 fnotice (file
, "gcc version %s %s\n", version_string
,
6713 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n",
6714 version_string
, pkgversion_string
, compiler_version
);
6718 #define RETRY_ICE_ATTEMPTS 3
6720 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
6723 files_equal_p (char *file1
, char *file2
)
6725 struct stat st1
, st2
;
6728 const int bufsize
= 8192;
6729 char *buf
= XNEWVEC (char, bufsize
);
6731 fd1
= open (file1
, O_RDONLY
);
6732 fd2
= open (file2
, O_RDONLY
);
6734 if (fd1
< 0 || fd2
< 0)
6737 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
6740 if (st1
.st_size
!= st2
.st_size
)
6743 for (n
= st1
.st_size
; n
; n
-= len
)
6746 if ((int) len
> bufsize
/ 2)
6749 if (read (fd1
, buf
, len
) != (int) len
6750 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
6755 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
6772 /* Check that compiler's output doesn't differ across runs.
6773 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
6774 stdout and stderr for each compiler run. Return true if all of
6775 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
6778 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
6781 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
6783 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
6784 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
6786 fnotice (stderr
, "The bug is not reproducible, so it is"
6787 " likely a hardware or OS problem.\n");
6791 return i
== RETRY_ICE_ATTEMPTS
- 2;
6794 enum attempt_status
{
6795 ATTEMPT_STATUS_FAIL_TO_RUN
,
6796 ATTEMPT_STATUS_SUCCESS
,
6801 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
6802 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
6803 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
6804 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
6805 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
6806 ATTEMPT_STATUS_SUCCESS otherwise. */
6808 static enum attempt_status
6809 run_attempt (const char **new_argv
, const char *out_temp
,
6810 const char *err_temp
, int emit_system_info
, int append
)
6813 if (emit_system_info
)
6815 FILE *file_out
= fopen (err_temp
, "a");
6816 print_configuration (file_out
);
6817 fputs ("\n", file_out
);
6823 struct pex_obj
*pex
;
6825 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
6826 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
6829 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
6831 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
6833 fatal_error (input_location
, "pex_init failed: %m");
6835 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
6836 CONST_CAST2 (char *const *, const char **, &new_argv
[1]), out_temp
,
6841 fatal_error (input_location
, errmsg
);
6845 pfatal_with_name (errmsg
);
6849 if (!pex_get_status (pex
, 1, &exit_status
))
6852 switch (WEXITSTATUS (exit_status
))
6855 status
= ATTEMPT_STATUS_ICE
;
6858 case SUCCESS_EXIT_CODE
:
6859 status
= ATTEMPT_STATUS_SUCCESS
;
6871 /* This routine reads lines from IN file, adds C++ style comments
6872 at the begining of each line and writes result into OUT. */
6875 insert_comments (const char *file_in
, const char *file_out
)
6877 FILE *in
= fopen (file_in
, "rb");
6878 FILE *out
= fopen (file_out
, "wb");
6881 bool add_comment
= true;
6882 while (fgets (line
, sizeof (line
), in
))
6887 add_comment
= strchr (line
, '\n') != NULL
;
6894 /* This routine adds preprocessed source code into the given ERR_FILE.
6895 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
6896 add information in report file. RUN_ATTEMPT should return
6897 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
6900 do_report_bug (const char **new_argv
, const int nargs
,
6901 char **out_file
, char **err_file
)
6904 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
6907 write (fd
, "\n//", 3);
6908 for (i
= 0; i
< nargs
; i
++)
6911 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
6913 write (fd
, "\n\n", 2);
6915 new_argv
[nargs
] = "-E";
6916 new_argv
[nargs
+ 1] = NULL
;
6918 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
6920 if (status
== ATTEMPT_STATUS_SUCCESS
)
6922 fnotice (stderr
, "Preprocessed source stored into %s file,"
6923 " please attach this to your bugreport.\n", *out_file
);
6924 /* Make sure it is not deleted. */
6930 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
6931 containing GCC configuration, backtrace, compiler's command line options
6932 and preprocessed source code. */
6935 try_generate_repro (const char **argv
)
6937 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
6938 const char **new_argv
;
6939 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
6940 char **temp_stdout_files
= &temp_files
[0];
6941 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
6943 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
6946 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
6947 /* Only retry compiler ICEs, not preprocessor ones. */
6948 if (! strcmp (argv
[nargs
], "-E"))
6950 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
6957 /* If the compiler is going to output any time information,
6958 it might varry between invocations. */
6959 else if (! strcmp (argv
[nargs
], "-quiet"))
6961 else if (! strcmp (argv
[nargs
], "-ftime-report"))
6964 if (out_arg
== -1 || !quiet
)
6967 memset (temp_files
, '\0', sizeof (temp_files
));
6968 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
6969 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
6970 new_argv
[nargs
++] = "-frandom-seed=0";
6971 new_argv
[nargs
++] = "-fdump-noaddr";
6972 new_argv
[nargs
] = NULL
;
6973 if (new_argv
[out_arg
][2] == '\0')
6974 new_argv
[out_arg
+ 1] = "-";
6976 new_argv
[out_arg
] = "-o-";
6979 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
6981 int emit_system_info
= 0;
6983 temp_stdout_files
[attempt
] = make_temp_file (".out");
6984 temp_stderr_files
[attempt
] = make_temp_file (".err");
6986 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
6989 emit_system_info
= 1;
6992 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
6993 temp_stderr_files
[attempt
], emit_system_info
,
6996 if (status
!= ATTEMPT_STATUS_ICE
)
6998 fnotice (stderr
, "The bug is not reproducible, so it is"
6999 " likely a hardware or OS problem.\n");
7004 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
7008 /* Insert commented out backtrace into report file. */
7009 char **stderr_commented
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
7010 insert_comments (temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
7013 /* In final attempt we append compiler options and preprocesssed code to last
7014 generated .out file with configuration and backtrace. */
7015 char **output
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
7016 do_report_bug (new_argv
, nargs
, stderr_commented
, output
);
7020 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
7023 unlink (temp_stdout_files
[i
]);
7024 free (temp_stdout_files
[i
]);
7028 /* Search for a file named NAME trying various prefixes including the
7029 user's -B prefix and some standard ones.
7030 Return the absolute file name found. If nothing is found, return NAME. */
7033 find_file (const char *name
)
7035 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
7036 return newname
? newname
: name
;
7039 /* Determine whether a directory exists. If LINKER, return 0 for
7040 certain fixed names not needed by the linker. */
7043 is_directory (const char *path1
, bool linker
)
7050 /* Ensure the string ends with "/.". The resulting path will be a
7051 directory even if the given path is a symbolic link. */
7052 len1
= strlen (path1
);
7053 path
= (char *) alloca (3 + len1
);
7054 memcpy (path
, path1
, len1
);
7056 if (!IS_DIR_SEPARATOR (cp
[-1]))
7057 *cp
++ = DIR_SEPARATOR
;
7061 /* Exclude directories that the linker is known to search. */
7063 && IS_DIR_SEPARATOR (path
[0])
7065 && filename_ncmp (path
+ 1, "lib", 3) == 0)
7067 && filename_ncmp (path
+ 1, "usr", 3) == 0
7068 && IS_DIR_SEPARATOR (path
[4])
7069 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
7072 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
7075 /* Set up the various global variables to indicate that we're processing
7076 the input file named FILENAME. */
7079 set_input (const char *filename
)
7083 gcc_input_filename
= filename
;
7084 input_filename_length
= strlen (gcc_input_filename
);
7085 input_basename
= lbasename (gcc_input_filename
);
7087 /* Find a suffix starting with the last period,
7088 and set basename_length to exclude that suffix. */
7089 basename_length
= strlen (input_basename
);
7090 suffixed_basename_length
= basename_length
;
7091 p
= input_basename
+ basename_length
;
7092 while (p
!= input_basename
&& *p
!= '.')
7094 if (*p
== '.' && p
!= input_basename
)
7096 basename_length
= p
- input_basename
;
7097 input_suffix
= p
+ 1;
7102 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
7103 we will need to do a stat on the gcc_input_filename. The
7104 INPUT_STAT_SET signals that the stat is needed. */
7108 /* On fatal signals, delete all the temporary files. */
7111 fatal_signal (int signum
)
7113 signal (signum
, SIG_DFL
);
7114 delete_failure_queue ();
7115 delete_temp_files ();
7116 /* Get the same signal again, this time not handled,
7117 so its normal effect occurs. */
7118 kill (getpid (), signum
);
7121 /* Compare the contents of the two files named CMPFILE[0] and
7122 CMPFILE[1]. Return zero if they're identical, nonzero
7126 compare_files (char *cmpfile
[])
7129 FILE *temp
[2] = { NULL
, NULL
};
7135 void *map
[2] = { NULL
, NULL
};
7137 for (i
= 0; i
< 2; i
++)
7141 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
7143 error ("%s: could not determine length of compare-debug file %s",
7144 gcc_input_filename
, cmpfile
[i
]);
7149 length
[i
] = st
.st_size
;
7152 if (!ret
&& length
[0] != length
[1])
7154 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
7159 for (i
= 0; i
< 2; i
++)
7161 int fd
= open (cmpfile
[i
], O_RDONLY
);
7164 error ("%s: could not open compare-debug file %s",
7165 gcc_input_filename
, cmpfile
[i
]);
7170 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
7173 if (map
[i
] == (void *) MAP_FAILED
)
7182 if (memcmp (map
[0], map
[1], length
[0]) != 0)
7184 error ("%s: -fcompare-debug failure", gcc_input_filename
);
7189 for (i
= 0; i
< 2; i
++)
7191 munmap ((caddr_t
) map
[i
], length
[i
]);
7200 for (i
= 0; i
< 2; i
++)
7202 temp
[i
] = fopen (cmpfile
[i
], "r");
7205 error ("%s: could not open compare-debug file %s",
7206 gcc_input_filename
, cmpfile
[i
]);
7212 if (!ret
&& temp
[0] && temp
[1])
7216 c0
= fgetc (temp
[0]);
7217 c1
= fgetc (temp
[1]);
7221 error ("%s: -fcompare-debug failure",
7222 gcc_input_filename
);
7231 for (i
= 1; i
>= 0; i
--)
7240 driver::driver (bool can_finalize
, bool debug
) :
7241 explicit_link_files (NULL
),
7242 decoded_options (NULL
),
7243 m_option_suggestions (NULL
)
7245 env
.init (can_finalize
, debug
);
7250 XDELETEVEC (explicit_link_files
);
7251 XDELETEVEC (decoded_options
);
7252 if (m_option_suggestions
)
7256 FOR_EACH_VEC_ELT (*m_option_suggestions
, i
, str
)
7258 delete m_option_suggestions
;
7262 /* driver::main is implemented as a series of driver:: method calls. */
7265 driver::main (int argc
, char **argv
)
7269 set_progname (argv
[0]);
7270 expand_at_files (&argc
, &argv
);
7271 decode_argv (argc
, const_cast <const char **> (argv
));
7272 global_initializations ();
7273 build_multilib_strings ();
7275 putenv_COLLECT_GCC (argv
[0]);
7276 maybe_putenv_COLLECT_LTO_WRAPPER ();
7277 maybe_putenv_OFFLOAD_TARGETS ();
7278 handle_unrecognized_options ();
7280 if (!maybe_print_and_exit ())
7283 early_exit
= prepare_infiles ();
7285 return get_exit_code ();
7287 do_spec_on_infiles ();
7288 maybe_run_linker (argv
[0]);
7290 return get_exit_code ();
7293 /* Locate the final component of argv[0] after any leading path, and set
7294 the program name accordingly. */
7297 driver::set_progname (const char *argv0
) const
7299 const char *p
= argv0
+ strlen (argv0
);
7300 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
7304 xmalloc_set_program_name (progname
);
7307 /* Expand any @ files within the command-line args,
7308 setting at_file_supplied if any were expanded. */
7311 driver::expand_at_files (int *argc
, char ***argv
) const
7313 char **old_argv
= *argv
;
7315 expandargv (argc
, argv
);
7317 /* Determine if any expansions were made. */
7318 if (*argv
!= old_argv
)
7319 at_file_supplied
= true;
7322 /* Decode the command-line arguments from argc/argv into the
7323 decoded_options array. */
7326 driver::decode_argv (int argc
, const char **argv
)
7328 /* Register the language-independent parameters. */
7329 global_init_params ();
7332 init_opts_obstack ();
7333 init_options_struct (&global_options
, &global_options_set
);
7335 decode_cmdline_options_to_array (argc
, argv
,
7337 &decoded_options
, &decoded_options_count
);
7340 /* Perform various initializations and setup. */
7343 driver::global_initializations ()
7345 /* Unlock the stdio streams. */
7346 unlock_std_streams ();
7348 gcc_init_libintl ();
7350 diagnostic_initialize (global_dc
, 0);
7351 diagnostic_color_init (global_dc
);
7353 #ifdef GCC_DRIVER_HOST_INITIALIZATION
7354 /* Perform host dependent initialization when needed. */
7355 GCC_DRIVER_HOST_INITIALIZATION
;
7358 if (atexit (delete_temp_files
) != 0)
7359 fatal_error (input_location
, "atexit failed");
7361 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
7362 signal (SIGINT
, fatal_signal
);
7364 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
7365 signal (SIGHUP
, fatal_signal
);
7367 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
7368 signal (SIGTERM
, fatal_signal
);
7370 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
7371 signal (SIGPIPE
, fatal_signal
);
7374 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
7375 receive the signal. A different setting is inheritable */
7376 signal (SIGCHLD
, SIG_DFL
);
7379 /* Parsing and gimplification sometimes need quite large stack.
7380 Increase stack size limits if possible. */
7381 stack_limit_increase (64 * 1024 * 1024);
7383 /* Allocate the argument vector. */
7386 obstack_init (&obstack
);
7389 /* Build multilib_select, et. al from the separate lines that make up each
7390 multilib selection. */
7393 driver::build_multilib_strings () const
7397 const char *const *q
= multilib_raw
;
7400 obstack_init (&multilib_obstack
);
7401 while ((p
= *q
++) != (char *) 0)
7402 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7404 obstack_1grow (&multilib_obstack
, 0);
7405 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
7407 q
= multilib_matches_raw
;
7408 while ((p
= *q
++) != (char *) 0)
7409 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7411 obstack_1grow (&multilib_obstack
, 0);
7412 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
7414 q
= multilib_exclusions_raw
;
7415 while ((p
= *q
++) != (char *) 0)
7416 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7418 obstack_1grow (&multilib_obstack
, 0);
7419 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
7421 q
= multilib_reuse_raw
;
7422 while ((p
= *q
++) != (char *) 0)
7423 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7425 obstack_1grow (&multilib_obstack
, 0);
7426 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
7429 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
7432 obstack_1grow (&multilib_obstack
, ' ');
7433 obstack_grow (&multilib_obstack
,
7434 multilib_defaults_raw
[i
],
7435 strlen (multilib_defaults_raw
[i
]));
7439 obstack_1grow (&multilib_obstack
, 0);
7440 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
7444 /* Set up the spec-handling machinery. */
7447 driver::set_up_specs () const
7449 const char *spec_machine_suffix
;
7453 #ifdef INIT_ENVIRONMENT
7454 /* Set up any other necessary machine specific environment variables. */
7455 xputenv (INIT_ENVIRONMENT
);
7458 /* Make a table of what switches there are (switches, n_switches).
7459 Make a table of specified input files (infiles, n_infiles).
7460 Decode switches that are handled locally. */
7462 process_command (decoded_options_count
, decoded_options
);
7464 /* Initialize the vector of specs to just the default.
7465 This means one element containing 0s, as a terminator. */
7467 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
7468 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
7469 n_compilers
= n_default_compilers
;
7471 /* Read specs from a file if there is one. */
7473 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
7474 accel_dir_suffix
, dir_separator_str
, NULL
);
7475 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
7477 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
7478 /* Read the specs file unless it is a default one. */
7479 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
7480 read_specs (specs_file
, true, false);
7484 #ifdef ACCEL_COMPILER
7485 spec_machine_suffix
= machine_suffix
;
7487 spec_machine_suffix
= just_machine_suffix
;
7490 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
7491 for any override of as, ld and libraries. */
7492 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
7493 + strlen (spec_machine_suffix
) + sizeof ("specs"));
7494 strcpy (specs_file
, standard_exec_prefix
);
7495 strcat (specs_file
, spec_machine_suffix
);
7496 strcat (specs_file
, "specs");
7497 if (access (specs_file
, R_OK
) == 0)
7498 read_specs (specs_file
, true, false);
7500 /* Process any configure-time defaults specified for the command line
7501 options, via OPTION_DEFAULT_SPECS. */
7502 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
7503 do_option_spec (option_default_specs
[i
].name
,
7504 option_default_specs
[i
].spec
);
7506 /* Process DRIVER_SELF_SPECS, adding any new options to the end
7507 of the command line. */
7509 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
7510 do_self_spec (driver_self_specs
[i
]);
7512 /* If not cross-compiling, look for executables in the standard
7514 if (*cross_compile
== '0')
7516 if (*md_exec_prefix
)
7518 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
7519 PREFIX_PRIORITY_LAST
, 0, 0);
7523 /* Process sysroot_suffix_spec. */
7524 if (*sysroot_suffix_spec
!= 0
7525 && !no_sysroot_suffix
7526 && do_spec_2 (sysroot_suffix_spec
) == 0)
7528 if (argbuf
.length () > 1)
7529 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
7530 else if (argbuf
.length () == 1)
7531 target_sysroot_suffix
= xstrdup (argbuf
.last ());
7534 #ifdef HAVE_LD_SYSROOT
7535 /* Pass the --sysroot option to the linker, if it supports that. If
7536 there is a sysroot_suffix_spec, it has already been processed by
7537 this point, so target_system_root really is the system root we
7539 if (target_system_root
)
7541 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7542 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
7543 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
7547 /* Process sysroot_hdrs_suffix_spec. */
7548 if (*sysroot_hdrs_suffix_spec
!= 0
7549 && !no_sysroot_suffix
7550 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
7552 if (argbuf
.length () > 1)
7553 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7554 else if (argbuf
.length () == 1)
7555 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
7558 /* Look for startfiles in the standard places. */
7559 if (*startfile_prefix_spec
!= 0
7560 && do_spec_2 (startfile_prefix_spec
) == 0
7561 && do_spec_1 (" ", 0, NULL
) == 0)
7565 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
7566 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
7567 PREFIX_PRIORITY_LAST
, 0, 1);
7569 /* We should eventually get rid of all these and stick to
7570 startfile_prefix_spec exclusively. */
7571 else if (*cross_compile
== '0' || target_system_root
)
7573 if (*md_startfile_prefix
)
7574 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7575 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7577 if (*md_startfile_prefix_1
)
7578 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7579 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7581 /* If standard_startfile_prefix is relative, base it on
7582 standard_exec_prefix. This lets us move the installed tree
7583 as a unit. If GCC_EXEC_PREFIX is defined, base
7584 standard_startfile_prefix on that as well.
7586 If the prefix is relative, only search it for native compilers;
7587 otherwise we will search a directory containing host libraries. */
7588 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7589 add_sysrooted_prefix (&startfile_prefixes
,
7590 standard_startfile_prefix
, "BINUTILS",
7591 PREFIX_PRIORITY_LAST
, 0, 1);
7592 else if (*cross_compile
== '0')
7594 add_prefix (&startfile_prefixes
,
7595 concat (gcc_exec_prefix
7596 ? gcc_exec_prefix
: standard_exec_prefix
,
7598 standard_startfile_prefix
, NULL
),
7599 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7602 /* Sysrooted prefixes are relocated because target_system_root is
7603 also relocated by gcc_exec_prefix. */
7604 if (*standard_startfile_prefix_1
)
7605 add_sysrooted_prefix (&startfile_prefixes
,
7606 standard_startfile_prefix_1
, "BINUTILS",
7607 PREFIX_PRIORITY_LAST
, 0, 1);
7608 if (*standard_startfile_prefix_2
)
7609 add_sysrooted_prefix (&startfile_prefixes
,
7610 standard_startfile_prefix_2
, "BINUTILS",
7611 PREFIX_PRIORITY_LAST
, 0, 1);
7614 /* Process any user specified specs in the order given on the command
7616 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7618 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7620 read_specs (filename
? filename
: uptr
->filename
, false, true);
7623 /* Process any user self specs. */
7625 struct spec_list
*sl
;
7626 for (sl
= specs
; sl
; sl
= sl
->next
)
7627 if (sl
->name_len
== sizeof "self_spec" - 1
7628 && !strcmp (sl
->name
, "self_spec"))
7629 do_self_spec (*sl
->ptr_spec
);
7634 enum save_temps save
;
7636 if (!compare_debug_second
)
7638 n_switches_debug_check
[1] = n_switches
;
7639 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7640 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
7643 do_self_spec ("%:compare-debug-self-opt()");
7644 n_switches_debug_check
[0] = n_switches
;
7645 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
7646 switches_debug_check
[0] = switches
;
7648 n_switches
= n_switches_debug_check
[1];
7649 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7650 switches
= switches_debug_check
[1];
7653 /* Avoid crash when computing %j in this early. */
7654 save
= save_temps_flag
;
7655 save_temps_flag
= SAVE_TEMPS_NONE
;
7657 compare_debug
= -compare_debug
;
7658 do_self_spec ("%:compare-debug-self-opt()");
7660 save_temps_flag
= save
;
7662 if (!compare_debug_second
)
7664 n_switches_debug_check
[1] = n_switches
;
7665 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7666 switches_debug_check
[1] = switches
;
7667 compare_debug
= -compare_debug
;
7668 n_switches
= n_switches_debug_check
[0];
7669 n_switches_alloc
= n_switches_debug_check
[0];
7670 switches
= switches_debug_check
[0];
7675 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7676 if (gcc_exec_prefix
)
7677 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
7678 dir_separator_str
, spec_version
,
7679 accel_dir_suffix
, dir_separator_str
, NULL
);
7681 /* Now we have the specs.
7682 Set the `valid' bits for switches that match anything in any spec. */
7684 validate_all_switches ();
7686 /* Now that we have the switches and the specs, set
7687 the subdirectory based on the options. */
7688 set_multilib_dir ();
7691 /* Set up to remember the pathname of gcc and any options
7692 needed for collect. We use argv[0] instead of progname because
7693 we need the complete pathname. */
7696 driver::putenv_COLLECT_GCC (const char *argv0
) const
7698 obstack_init (&collect_obstack
);
7699 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7700 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
7701 xputenv (XOBFINISH (&collect_obstack
, char *));
7704 /* Set up to remember the pathname of the lto wrapper. */
7707 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
7709 char *lto_wrapper_file
;
7712 lto_wrapper_file
= NULL
;
7714 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
7716 if (lto_wrapper_file
)
7718 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
7719 lto_wrapper_spec
= lto_wrapper_file
;
7720 obstack_init (&collect_obstack
);
7721 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7722 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7723 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7724 strlen (lto_wrapper_spec
) + 1);
7725 xputenv (XOBFINISH (&collect_obstack
, char *));
7730 /* Set up to remember the names of offload targets. */
7733 driver::maybe_putenv_OFFLOAD_TARGETS () const
7735 if (offload_targets
&& offload_targets
[0] != '\0')
7737 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
7738 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
7739 obstack_grow (&collect_obstack
, offload_targets
,
7740 strlen (offload_targets
) + 1);
7741 xputenv (XOBFINISH (&collect_obstack
, char *));
7744 free (offload_targets
);
7745 offload_targets
= NULL
;
7748 /* Helper function for driver::suggest_option. Populate
7749 m_option_suggestions with candidate strings for misspelled options.
7750 The strings will be freed by the driver's dtor. */
7753 driver::build_option_suggestions (void)
7755 gcc_assert (m_option_suggestions
== NULL
);
7756 m_option_suggestions
= new auto_vec
<char *> ();
7758 /* We build a vec of m_option_suggestions, using add_misspelling_candidates
7759 to add copies of strings, without a leading dash. */
7761 for (unsigned int i
= 0; i
< cl_options_count
; i
++)
7763 const struct cl_option
*option
= &cl_options
[i
];
7764 const char *opt_text
= option
->opt_text
;
7768 if (option
->var_type
== CLVC_ENUM
)
7770 const struct cl_enum
*e
= &cl_enums
[option
->var_enum
];
7771 for (unsigned j
= 0; e
->values
[j
].arg
!= NULL
; j
++)
7773 char *with_arg
= concat (opt_text
, e
->values
[j
].arg
, NULL
);
7774 add_misspelling_candidates (m_option_suggestions
, option
,
7780 add_misspelling_candidates (m_option_suggestions
, option
,
7784 case OPT_fsanitize_
:
7785 case OPT_fsanitize_recover_
:
7786 /* -fsanitize= and -fsanitize-recover= can take
7787 a comma-separated list of arguments. Given that combinations
7788 are supported, we can't add all potential candidates to the
7789 vec, but if we at least add them individually without commas,
7790 we should do a better job e.g. correcting
7793 "-fsanitize=address"
7794 rather than to "-Wframe-address" (PR driver/69265). */
7796 for (int j
= 0; sanitizer_opts
[j
].name
!= NULL
; ++j
)
7798 struct cl_option optb
;
7799 /* -fsanitize=all is not valid, only -fno-sanitize=all.
7800 So don't register the positive misspelling candidates
7802 if (sanitizer_opts
[j
].flag
== ~0U && i
== OPT_fsanitize_
)
7805 optb
.opt_text
= opt_text
= "-fno-sanitize=";
7806 optb
.cl_reject_negative
= true;
7809 /* Get one arg at a time e.g. "-fsanitize=address". */
7810 char *with_arg
= concat (opt_text
,
7811 sanitizer_opts
[j
].name
,
7813 /* Add with_arg and all of its variant spellings e.g.
7814 "-fno-sanitize=address" to candidates (albeit without
7816 add_misspelling_candidates (m_option_suggestions
, option
,
7826 /* Helper function for driver::handle_unrecognized_options.
7828 Given an unrecognized option BAD_OPT (without the leading dash),
7829 locate the closest reasonable matching option (again, without the
7830 leading dash), or NULL.
7832 The returned string is owned by the driver instance. */
7835 driver::suggest_option (const char *bad_opt
)
7837 /* Lazily populate m_option_suggestions. */
7838 if (!m_option_suggestions
)
7839 build_option_suggestions ();
7840 gcc_assert (m_option_suggestions
);
7842 /* "m_option_suggestions" is now populated. Use it. */
7843 return find_closest_string
7845 (auto_vec
<const char *> *) m_option_suggestions
);
7848 /* Reject switches that no pass was interested in. */
7851 driver::handle_unrecognized_options ()
7853 for (size_t i
= 0; (int) i
< n_switches
; i
++)
7854 if (! switches
[i
].validated
)
7856 const char *hint
= suggest_option (switches
[i
].part1
);
7858 error ("unrecognized command line option %<-%s%>;"
7859 " did you mean %<-%s%>?",
7860 switches
[i
].part1
, hint
);
7862 error ("unrecognized command line option %<-%s%>",
7867 /* Handle the various -print-* options, returning 0 if the driver
7868 should exit, or nonzero if the driver should continue. */
7871 driver::maybe_print_and_exit () const
7873 if (print_search_dirs
)
7875 printf (_("install: %s%s\n"),
7876 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7877 gcc_exec_prefix
? "" : machine_suffix
);
7878 printf (_("programs: %s\n"),
7879 build_search_list (&exec_prefixes
, "", false, false));
7880 printf (_("libraries: %s\n"),
7881 build_search_list (&startfile_prefixes
, "", false, true));
7885 if (print_file_name
)
7887 printf ("%s\n", find_file (print_file_name
));
7891 if (print_prog_name
)
7893 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
7895 /* Append USE_LD to the default linker. */
7896 #ifdef DEFAULT_LINKER
7898 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
7899 int len
= (sizeof (DEFAULT_LINKER
)
7900 - sizeof (HOST_EXECUTABLE_SUFFIX
));
7904 char *default_linker
= xstrdup (DEFAULT_LINKER
);
7905 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
7906 HOST_EXECUTABLE_SUFFIX. */
7907 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
7909 default_linker
[len
] = '\0';
7910 ld
= concat (default_linker
, use_ld
,
7911 HOST_EXECUTABLE_SUFFIX
, NULL
);
7916 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
7917 if (access (ld
, X_OK
) == 0)
7919 printf ("%s\n", ld
);
7923 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
7925 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7926 printf ("%s\n", (newname
? newname
: print_prog_name
));
7930 if (print_multi_lib
)
7932 print_multilib_info ();
7936 if (print_multi_directory
)
7938 if (multilib_dir
== NULL
)
7941 printf ("%s\n", multilib_dir
);
7945 if (print_multiarch
)
7947 if (multiarch_dir
== NULL
)
7950 printf ("%s\n", multiarch_dir
);
7956 if (target_system_root
)
7958 if (target_sysroot_suffix
)
7959 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7961 printf ("%s\n", target_system_root
);
7966 if (print_multi_os_directory
)
7968 if (multilib_os_dir
== NULL
)
7971 printf ("%s\n", multilib_os_dir
);
7975 if (print_sysroot_headers_suffix
)
7977 if (*sysroot_hdrs_suffix_spec
)
7979 printf("%s\n", (target_sysroot_hdrs_suffix
7980 ? target_sysroot_hdrs_suffix
7985 /* The error status indicates that only one set of fixed
7986 headers should be built. */
7987 fatal_error (input_location
,
7988 "not configured with sysroot headers suffix");
7991 if (print_help_list
)
7997 printf (_("\nFor bug reporting instructions, please see:\n"));
7998 printf ("%s.\n", bug_report_url
);
8003 /* We do not exit here. Instead we have created a fake input file
8004 called 'help-dummy' which needs to be compiled, and we pass this
8005 on the various sub-processes, along with the --help switch.
8006 Ensure their output appears after ours. */
8007 fputc ('\n', stdout
);
8013 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
8015 printf ("Copyright %s 2017 Free Software Foundation, Inc.\n",
8017 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
8018 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
8023 /* We do not exit here. We use the same mechanism of --help to print
8024 the version of the sub-processes. */
8025 fputc ('\n', stdout
);
8031 print_configuration (stderr
);
8039 /* Figure out what to do with each input file.
8040 Return true if we need to exit early from "main", false otherwise. */
8043 driver::prepare_infiles ()
8046 int lang_n_infiles
= 0;
8048 if (n_infiles
== added_libraries
)
8049 fatal_error (input_location
, "no input files");
8052 /* Early exit needed from main. */
8055 /* Make a place to record the compiler output file names
8056 that correspond to the input files. */
8059 i
+= lang_specific_extra_outfiles
;
8060 outfiles
= XCNEWVEC (const char *, i
);
8062 /* Record which files were specified explicitly as link input. */
8064 explicit_link_files
= XCNEWVEC (char, n_infiles
);
8066 combine_inputs
= have_o
|| flag_wpa
;
8068 for (i
= 0; (int) i
< n_infiles
; i
++)
8070 const char *name
= infiles
[i
].name
;
8071 struct compiler
*compiler
= lookup_compiler (name
,
8073 infiles
[i
].language
);
8075 if (compiler
&& !(compiler
->combinable
))
8076 combine_inputs
= false;
8078 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
8079 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
8080 infiles
[i
].incompiler
= compiler
;
8084 input_file_compiler
= compiler
;
8085 infiles
[i
].incompiler
= compiler
;
8089 /* Since there is no compiler for this input file, assume it is a
8091 explicit_link_files
[i
] = 1;
8092 infiles
[i
].incompiler
= NULL
;
8094 infiles
[i
].compiled
= false;
8095 infiles
[i
].preprocessed
= false;
8098 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
8099 fatal_error (input_location
,
8100 "cannot specify -o with -c, -S or -E with multiple files");
8102 /* No early exit needed from main; we can continue. */
8106 /* Run the spec machinery on each input file. */
8109 driver::do_spec_on_infiles () const
8113 for (i
= 0; (int) i
< n_infiles
; i
++)
8115 int this_file_error
= 0;
8117 /* Tell do_spec what to substitute for %i. */
8119 input_file_number
= i
;
8120 set_input (infiles
[i
].name
);
8122 if (infiles
[i
].compiled
)
8125 /* Use the same thing in %o, unless cp->spec says otherwise. */
8127 outfiles
[i
] = gcc_input_filename
;
8129 /* Figure out which compiler from the file's suffix. */
8132 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
8133 infiles
[i
].language
);
8135 if (input_file_compiler
)
8137 /* Ok, we found an applicable compiler. Run its spec. */
8139 if (input_file_compiler
->spec
[0] == '#')
8141 error ("%s: %s compiler not installed on this system",
8142 gcc_input_filename
, &input_file_compiler
->spec
[1]);
8143 this_file_error
= 1;
8151 free (debug_check_temp_file
[0]);
8152 debug_check_temp_file
[0] = NULL
;
8154 free (debug_check_temp_file
[1]);
8155 debug_check_temp_file
[1] = NULL
;
8158 value
= do_spec (input_file_compiler
->spec
);
8159 infiles
[i
].compiled
= true;
8161 this_file_error
= 1;
8162 else if (compare_debug
&& debug_check_temp_file
[0])
8165 inform (0, "recompiling with -fcompare-debug");
8167 compare_debug
= -compare_debug
;
8168 n_switches
= n_switches_debug_check
[1];
8169 n_switches_alloc
= n_switches_alloc_debug_check
[1];
8170 switches
= switches_debug_check
[1];
8172 value
= do_spec (input_file_compiler
->spec
);
8174 compare_debug
= -compare_debug
;
8175 n_switches
= n_switches_debug_check
[0];
8176 n_switches_alloc
= n_switches_alloc_debug_check
[0];
8177 switches
= switches_debug_check
[0];
8181 error ("during -fcompare-debug recompilation");
8182 this_file_error
= 1;
8185 gcc_assert (debug_check_temp_file
[1]
8186 && filename_cmp (debug_check_temp_file
[0],
8187 debug_check_temp_file
[1]));
8190 inform (0, "comparing final insns dumps");
8192 if (compare_files (debug_check_temp_file
))
8193 this_file_error
= 1;
8198 free (debug_check_temp_file
[0]);
8199 debug_check_temp_file
[0] = NULL
;
8201 free (debug_check_temp_file
[1]);
8202 debug_check_temp_file
[1] = NULL
;
8207 /* If this file's name does not contain a recognized suffix,
8208 record it as explicit linker input. */
8211 explicit_link_files
[i
] = 1;
8213 /* Clear the delete-on-failure queue, deleting the files in it
8214 if this compilation failed. */
8216 if (this_file_error
)
8218 delete_failure_queue ();
8221 /* If this compilation succeeded, don't delete those files later. */
8222 clear_failure_queue ();
8225 /* Reset the input file name to the first compile/object file name, for use
8226 with %b in LINK_SPEC. We use the first input file that we can find
8227 a compiler to compile it instead of using infiles.language since for
8228 languages other than C we use aliases that we then lookup later. */
8233 for (i
= 0; i
< n_infiles
; i
++)
8234 if (infiles
[i
].incompiler
8235 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
8237 set_input (infiles
[i
].name
);
8244 /* Make sure INPUT_FILE_NUMBER points to first available open
8246 input_file_number
= n_infiles
;
8247 if (lang_specific_pre_link ())
8252 /* If we have to run the linker, do it now. */
8255 driver::maybe_run_linker (const char *argv0
) const
8258 int linker_was_run
= 0;
8259 int num_linker_inputs
;
8261 /* Determine if there are any linker input files. */
8262 num_linker_inputs
= 0;
8263 for (i
= 0; (int) i
< n_infiles
; i
++)
8264 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
8265 num_linker_inputs
++;
8267 /* Run ld to link all the compiler output files. */
8269 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
8271 int tmp
= execution_count
;
8275 #if HAVE_LTO_PLUGIN > 0
8276 #if HAVE_LTO_PLUGIN == 2
8277 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
8279 const char *fuse_linker_plugin
= "fuse-linker-plugin";
8283 /* We'll use ld if we can't find collect2. */
8284 if (! strcmp (linker_name_spec
, "collect2"))
8286 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
8288 linker_name_spec
= "ld";
8291 #if HAVE_LTO_PLUGIN > 0
8292 #if HAVE_LTO_PLUGIN == 2
8293 if (!switch_matches (fno_use_linker_plugin
,
8294 fno_use_linker_plugin
8295 + strlen (fno_use_linker_plugin
), 0))
8297 if (switch_matches (fuse_linker_plugin
,
8299 + strlen (fuse_linker_plugin
), 0))
8302 char *temp_spec
= find_a_file (&exec_prefixes
,
8303 LTOPLUGINSONAME
, R_OK
,
8306 fatal_error (input_location
,
8307 "-fuse-linker-plugin, but %s not found",
8309 linker_plugin_file_spec
= convert_white_space (temp_spec
);
8312 lto_gcc_spec
= argv0
;
8315 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
8317 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
8318 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
8320 if (print_subprocess_help
== 1)
8322 printf (_("\nLinker options\n==============\n\n"));
8323 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
8324 " to the linker.\n\n"));
8327 int value
= do_spec (link_command_spec
);
8330 linker_was_run
= (tmp
!= execution_count
);
8333 /* If options said don't run linker,
8334 complain about input files to be given to the linker. */
8336 if (! linker_was_run
&& !seen_error ())
8337 for (i
= 0; (int) i
< n_infiles
; i
++)
8338 if (explicit_link_files
[i
]
8339 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
8340 warning (0, "%s: linker input file unused because linking not done",
8344 /* The end of "main". */
8347 driver::final_actions () const
8349 /* Delete some or all of the temporary files we made. */
8352 delete_failure_queue ();
8353 delete_temp_files ();
8355 if (print_help_list
)
8357 printf (("\nFor bug reporting instructions, please see:\n"));
8358 printf ("%s\n", bug_report_url
);
8362 /* Determine what the exit code of the driver should be. */
8365 driver::get_exit_code () const
8367 return (signal_count
!= 0 ? 2
8368 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
8372 /* Find the proper compilation spec for the file name NAME,
8373 whose length is LENGTH. LANGUAGE is the specified language,
8374 or 0 if this file is to be passed to the linker. */
8376 static struct compiler
*
8377 lookup_compiler (const char *name
, size_t length
, const char *language
)
8379 struct compiler
*cp
;
8381 /* If this was specified by the user to be a linker input, indicate that. */
8382 if (language
!= 0 && language
[0] == '*')
8385 /* Otherwise, look for the language, if one is spec'd. */
8388 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8389 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
8391 if (name
!= NULL
&& strcmp (name
, "-") == 0
8392 && (strcmp (cp
->suffix
, "@c-header") == 0
8393 || strcmp (cp
->suffix
, "@c++-header") == 0)
8395 fatal_error (input_location
,
8396 "cannot use %<-%> as input filename for a "
8397 "precompiled header");
8402 error ("language %s not recognized", language
);
8406 /* Look for a suffix. */
8407 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8409 if (/* The suffix `-' matches only the file name `-'. */
8410 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8411 || (strlen (cp
->suffix
) < length
8412 /* See if the suffix matches the end of NAME. */
8413 && !strcmp (cp
->suffix
,
8414 name
+ length
- strlen (cp
->suffix
))
8419 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
8420 /* Look again, but case-insensitively this time. */
8422 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8424 if (/* The suffix `-' matches only the file name `-'. */
8425 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8426 || (strlen (cp
->suffix
) < length
8427 /* See if the suffix matches the end of NAME. */
8428 && ((!strcmp (cp
->suffix
,
8429 name
+ length
- strlen (cp
->suffix
))
8430 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
8431 && !strcasecmp (cp
->suffix
,
8432 name
+ length
- strlen (cp
->suffix
)))
8438 if (cp
>= compilers
)
8440 if (cp
->spec
[0] != '@')
8441 /* A non-alias entry: return it. */
8444 /* An alias entry maps a suffix to a language.
8445 Search for the language; pass 0 for NAME and LENGTH
8446 to avoid infinite recursion if language not found. */
8447 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
8453 save_string (const char *s
, int len
)
8455 char *result
= XNEWVEC (char, len
+ 1);
8457 gcc_checking_assert (strlen (s
) >= (unsigned int) len
);
8458 memcpy (result
, s
, len
);
8464 pfatal_with_name (const char *name
)
8466 perror_with_name (name
);
8467 delete_temp_files ();
8472 perror_with_name (const char *name
)
8474 error ("%s: %m", name
);
8478 validate_switches_from_spec (const char *spec
, bool user
)
8480 const char *p
= spec
;
8483 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
8484 /* We have a switch spec. */
8485 p
= validate_switches (p
+ 1, user
);
8489 validate_all_switches (void)
8491 struct compiler
*comp
;
8492 struct spec_list
*spec
;
8494 for (comp
= compilers
; comp
->spec
; comp
++)
8495 validate_switches_from_spec (comp
->spec
, false);
8497 /* Look through the linked list of specs read from the specs file. */
8498 for (spec
= specs
; spec
; spec
= spec
->next
)
8499 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
8501 validate_switches_from_spec (link_command_spec
, false);
8504 /* Look at the switch-name that comes after START
8505 and mark as valid all supplied switches that match it. */
8508 validate_switches (const char *start
, bool user_spec
)
8510 const char *p
= start
;
8514 bool suffix
= false;
8515 bool starred
= false;
8517 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
8526 if (*p
== '.' || *p
== ',')
8530 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
8531 || *p
== ',' || *p
== '.' || *p
== '@')
8536 starred
= true, p
++;
8542 /* Mark all matching switches as valid. */
8543 for (i
= 0; i
< n_switches
; i
++)
8544 if (!strncmp (switches
[i
].part1
, atom
, len
)
8545 && (starred
|| switches
[i
].part1
[len
] == '\0')
8546 && (switches
[i
].known
|| user_spec
))
8547 switches
[i
].validated
= true;
8551 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
8554 if (*p
&& p
[-1] == ':')
8556 while (*p
&& *p
!= ';' && *p
!= '}')
8561 if (*p
== '{' || *p
== '<')
8562 p
= validate_switches (p
+1, user_spec
);
8563 else if (p
[0] == 'W' && p
[1] == '{')
8564 p
= validate_switches (p
+2, user_spec
);
8571 if (*p
&& p
[-1] == ';')
8585 static struct mdswitchstr
*mdswitches
;
8586 static int n_mdswitches
;
8588 /* Check whether a particular argument was used. The first time we
8589 canonicalize the switches to keep only the ones we care about. */
8594 int operator () (const char *p
, int len
);
8601 const char *replace
;
8606 mswitchstr
*mswitches
;
8611 used_arg_t used_arg
;
8614 used_arg_t::operator () (const char *p
, int len
)
8620 struct mswitchstr
*matches
;
8624 /* Break multilib_matches into the component strings of string
8625 and replacement string. */
8626 for (q
= multilib_matches
; *q
!= '\0'; q
++)
8631 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
8633 q
= multilib_matches
;
8642 fatal_error (input_location
, "multilib spec %qs is invalid",
8647 matches
[i
].len
= q
- matches
[i
].str
;
8649 matches
[i
].replace
= ++q
;
8650 while (*q
!= ';' && *q
!= '\0')
8653 goto invalid_matches
;
8656 matches
[i
].rep_len
= q
- matches
[i
].replace
;
8662 /* Now build a list of the replacement string for switches that we care
8663 about. Make sure we allocate at least one entry. This prevents
8664 xmalloc from calling fatal, and prevents us from re-executing this
8667 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
8668 for (i
= 0; i
< n_switches
; i
++)
8669 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
8671 int xlen
= strlen (switches
[i
].part1
);
8672 for (j
= 0; j
< cnt
; j
++)
8673 if (xlen
== matches
[j
].len
8674 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
8676 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
8677 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
8678 mswitches
[n_mswitches
].replace
= (char *) 0;
8679 mswitches
[n_mswitches
].rep_len
= 0;
8685 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
8686 on the command line nor any options mutually incompatible with
8688 for (i
= 0; i
< n_mdswitches
; i
++)
8692 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
8698 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
8699 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
8701 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8708 if (*q
!= ' ' && *q
!= '\0')
8710 while (*r
!= ' ' && *r
!= '\0')
8713 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8716 if (used_arg (r
, q
- r
))
8721 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
8722 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
8723 mswitches
[n_mswitches
].replace
= (char *) 0;
8724 mswitches
[n_mswitches
].rep_len
= 0;
8737 for (i
= 0; i
< n_mswitches
; i
++)
8738 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8744 void used_arg_t::finalize ()
8746 XDELETEVEC (mswitches
);
8753 default_arg (const char *p
, int len
)
8757 for (i
= 0; i
< n_mdswitches
; i
++)
8758 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8764 /* Work out the subdirectory to use based on the options. The format of
8765 multilib_select is a list of elements. Each element is a subdirectory
8766 name followed by a list of options followed by a semicolon. The format
8767 of multilib_exclusions is the same, but without the preceding
8768 directory. First gcc will check the exclusions, if none of the options
8769 beginning with an exclamation point are present, and all of the other
8770 options are present, then we will ignore this completely. Passing
8771 that, gcc will consider each multilib_select in turn using the same
8772 rules for matching the options. If a match is found, that subdirectory
8774 A subdirectory name is optionally followed by a colon and the corresponding
8778 set_multilib_dir (void)
8781 unsigned int this_path_len
;
8782 const char *this_path
, *this_arg
;
8783 const char *start
, *end
;
8785 int ok
, ndfltok
, first
;
8788 start
= multilib_defaults
;
8789 while (*start
== ' ' || *start
== '\t')
8791 while (*start
!= '\0')
8794 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8796 while (*start
== ' ' || *start
== '\t')
8804 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8805 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8807 while (*start
== ' ' || *start
== '\t')
8813 for (end
= start
+ 1;
8814 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8817 obstack_grow (&multilib_obstack
, start
, end
- start
);
8818 obstack_1grow (&multilib_obstack
, 0);
8819 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8820 mdswitches
[i
++].len
= end
- start
;
8827 p
= multilib_exclusions
;
8830 /* Ignore newlines. */
8837 /* Check the arguments. */
8844 fatal_error (input_location
, "multilib exclusions %qs is invalid",
8845 multilib_exclusions
);
8855 while (*p
!= ' ' && *p
!= ';')
8858 goto invalid_exclusions
;
8862 if (*this_arg
!= '!')
8870 ok
= used_arg (this_arg
, p
- this_arg
);
8885 p
= multilib_select
;
8887 /* Append multilib reuse rules if any. With those rules, we can reuse
8888 one multilib for certain different options sets. */
8889 if (strlen (multilib_reuse
) > 0)
8890 p
= concat (p
, multilib_reuse
, NULL
);
8894 /* Ignore newlines. */
8901 /* Get the initial path. */
8908 fatal_error (input_location
, "multilib select %qs %qs is invalid",
8909 multilib_select
, multilib_reuse
);
8913 this_path_len
= p
- this_path
;
8915 /* Check the arguments. */
8922 goto invalid_select
;
8931 while (*p
!= ' ' && *p
!= ';')
8934 goto invalid_select
;
8938 if (*this_arg
!= '!')
8946 /* If this is a default argument, we can just ignore it.
8947 This is true even if this_arg begins with '!'. Beginning
8948 with '!' does not mean that this argument is necessarily
8949 inappropriate for this library: it merely means that
8950 there is a more specific library which uses this
8951 argument. If this argument is a default, we need not
8952 consider that more specific library. */
8953 ok
= used_arg (this_arg
, p
- this_arg
);
8960 if (default_arg (this_arg
, p
- this_arg
))
8969 if (this_path_len
!= 1
8970 || this_path
[0] != '.')
8972 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
8975 strncpy (new_multilib_dir
, this_path
, this_path_len
);
8976 new_multilib_dir
[this_path_len
] = '\0';
8977 q
= strchr (new_multilib_dir
, ':');
8980 multilib_dir
= new_multilib_dir
;
8987 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8989 while (q
< end
&& *q
!= ':')
8993 const char *q2
= q
+ 1, *ml_end
= end
;
8994 char *new_multilib_os_dir
;
8996 while (q2
< end
&& *q2
!= ':')
9000 if (ml_end
- q
== 1)
9001 multilib_os_dir
= xstrdup (".");
9004 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
9005 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
9006 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
9007 multilib_os_dir
= new_multilib_os_dir
;
9010 if (q2
< end
&& *q2
== ':')
9012 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
9013 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
9014 new_multiarch_dir
[end
- q2
- 1] = '\0';
9015 multiarch_dir
= new_multiarch_dir
;
9024 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
9025 && strcmp (multilib_os_dir
, ".") == 0)
9027 free (CONST_CAST (char *, multilib_os_dir
));
9028 multilib_os_dir
= NULL
;
9030 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
9031 multilib_os_dir
= multilib_dir
;
9034 /* Print out the multiple library subdirectory selection
9035 information. This prints out a series of lines. Each line looks
9036 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
9037 required. Only the desired options are printed out, the negative
9038 matches. The options are print without a leading dash. There are
9039 no spaces to make it easy to use the information in the shell.
9040 Each subdirectory is printed only once. This assumes the ordering
9041 generated by the genmultilib script. Also, we leave out ones that match
9045 print_multilib_info (void)
9047 const char *p
= multilib_select
;
9048 const char *last_path
= 0, *this_path
;
9050 unsigned int last_path_len
= 0;
9055 /* Ignore newlines. */
9062 /* Get the initial path. */
9069 fatal_error (input_location
,
9070 "multilib select %qs is invalid", multilib_select
);
9076 /* When --disable-multilib was used but target defines
9077 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
9078 with .:: for multiarch configurations) are there just to find
9079 multilib_os_dir, so skip them from output. */
9080 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
9083 /* Check for matches with the multilib_exclusions. We don't bother
9084 with the '!' in either list. If any of the exclusion rules match
9085 all of its options with the select rule, we skip it. */
9087 const char *e
= multilib_exclusions
;
9088 const char *this_arg
;
9093 /* Ignore newlines. */
9100 /* Check the arguments. */
9109 fatal_error (input_location
,
9110 "multilib exclusion %qs is invalid",
9111 multilib_exclusions
);
9122 while (*e
!= ' ' && *e
!= ';')
9125 goto invalid_exclusion
;
9133 int len
= e
- this_arg
;
9136 goto invalid_select
;
9140 while (*q
!= ' ' && *q
!= ';')
9143 goto invalid_select
;
9147 if (! strncmp (arg
, this_arg
,
9148 (len
< q
- arg
) ? q
- arg
: len
)
9149 || default_arg (this_arg
, e
- this_arg
))
9179 /* If this is a duplicate, skip it. */
9180 skip
= (last_path
!= 0
9181 && (unsigned int) (p
- this_path
) == last_path_len
9182 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
9184 last_path
= this_path
;
9185 last_path_len
= p
- this_path
;
9188 /* If this directory requires any default arguments, we can skip
9189 it. We will already have printed a directory identical to
9190 this one which does not require that default argument. */
9201 goto invalid_select
;
9208 while (*q
!= ' ' && *q
!= ';')
9211 goto invalid_select
;
9216 && default_arg (arg
, q
- arg
))
9231 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
9242 goto invalid_select
;
9250 use_arg
= *p
!= '!';
9255 while (*p
!= ' ' && *p
!= ';')
9258 goto invalid_select
;
9270 /* If there are extra options, print them now. */
9271 if (multilib_extra
&& *multilib_extra
)
9273 int print_at
= TRUE
;
9276 for (q
= multilib_extra
; *q
!= '\0'; q
++)
9297 /* getenv built-in spec function.
9299 Returns the value of the environment variable given by its first argument,
9300 concatenated with the second argument. If the variable is not defined, a
9301 fatal error is issued unless such undefs are internally allowed, in which
9302 case the variable name is used as the variable value. */
9305 getenv_spec_function (int argc
, const char **argv
)
9308 const char *varname
;
9318 value
= env
.get (varname
);
9320 if (!value
&& spec_undefvar_allowed
)
9324 fatal_error (input_location
,
9325 "environment variable %qs not defined", varname
);
9327 /* We have to escape every character of the environment variable so
9328 they are not interpreted as active spec characters. A
9329 particularly painful case is when we are reading a variable
9330 holding a windows path complete with \ separators. */
9331 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
9332 result
= XNEWVAR (char, len
);
9333 for (ptr
= result
; *value
; ptr
+= 2)
9339 strcpy (ptr
, argv
[1]);
9344 /* if-exists built-in spec function.
9346 Checks to see if the file specified by the absolute pathname in
9347 ARGS exists. Returns that pathname if found.
9349 The usual use for this function is to check for a library file
9350 (whose name has been expanded with %s). */
9353 if_exists_spec_function (int argc
, const char **argv
)
9355 /* Must have only one argument. */
9356 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9362 /* if-exists-else built-in spec function.
9364 This is like if-exists, but takes an additional argument which
9365 is returned if the first argument does not exist. */
9368 if_exists_else_spec_function (int argc
, const char **argv
)
9370 /* Must have exactly two arguments. */
9374 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9380 /* sanitize built-in spec function.
9382 This returns non-NULL, if sanitizing address, thread or
9383 any of the undefined behavior sanitizers. */
9386 sanitize_spec_function (int argc
, const char **argv
)
9391 if (strcmp (argv
[0], "address") == 0)
9392 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
9393 if (strcmp (argv
[0], "kernel-address") == 0)
9394 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
9395 if (strcmp (argv
[0], "thread") == 0)
9396 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
9397 if (strcmp (argv
[0], "undefined") == 0)
9398 return ((flag_sanitize
9399 & (SANITIZE_UNDEFINED
| SANITIZE_UNDEFINED_NONDEFAULT
))
9400 && !flag_sanitize_undefined_trap_on_error
) ? "" : NULL
;
9401 if (strcmp (argv
[0], "leak") == 0)
9402 return ((flag_sanitize
9403 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
9404 == SANITIZE_LEAK
) ? "" : NULL
;
9408 /* replace-outfile built-in spec function.
9410 This looks for the first argument in the outfiles array's name and
9411 replaces it with the second argument. */
9414 replace_outfile_spec_function (int argc
, const char **argv
)
9417 /* Must have exactly two arguments. */
9421 for (i
= 0; i
< n_infiles
; i
++)
9423 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9424 outfiles
[i
] = xstrdup (argv
[1]);
9429 /* remove-outfile built-in spec function.
9431 * This looks for the first argument in the outfiles array's name and
9435 remove_outfile_spec_function (int argc
, const char **argv
)
9438 /* Must have exactly one argument. */
9442 for (i
= 0; i
< n_infiles
; i
++)
9444 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9450 /* Given two version numbers, compares the two numbers.
9451 A version number must match the regular expression
9452 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
9455 compare_version_strings (const char *v1
, const char *v2
)
9460 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
9461 REG_EXTENDED
| REG_NOSUB
) != 0)
9463 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
9464 if (rresult
== REG_NOMATCH
)
9465 fatal_error (input_location
, "invalid version number %qs", v1
);
9466 else if (rresult
!= 0)
9468 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
9469 if (rresult
== REG_NOMATCH
)
9470 fatal_error (input_location
, "invalid version number %qs", v2
);
9471 else if (rresult
!= 0)
9474 return strverscmp (v1
, v2
);
9478 /* version_compare built-in spec function.
9480 This takes an argument of the following form:
9482 <comparison-op> <arg1> [<arg2>] <switch> <result>
9484 and produces "result" if the comparison evaluates to true,
9485 and nothing if it doesn't.
9487 The supported <comparison-op> values are:
9489 >= true if switch is a later (or same) version than arg1
9491 < true if switch is an earlier version than arg1
9493 >< true if switch is arg1 or later, and earlier than arg2
9494 <> true if switch is earlier than arg1 or is arg2 or later
9496 If the switch is not present, the condition is false unless
9497 the first character of the <comparison-op> is '!'.
9500 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
9501 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
9504 version_compare_spec_function (int argc
, const char **argv
)
9508 const char *switch_value
= NULL
;
9513 fatal_error (input_location
, "too few arguments to %%:version-compare");
9514 if (argv
[0][0] == '\0')
9516 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
9518 if (argc
!= nargs
+ 3)
9519 fatal_error (input_location
, "too many arguments to %%:version-compare");
9521 switch_len
= strlen (argv
[nargs
+ 1]);
9522 for (i
= 0; i
< n_switches
; i
++)
9523 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
9524 && check_live_switch (i
, switch_len
))
9525 switch_value
= switches
[i
].part1
+ switch_len
;
9527 if (switch_value
== NULL
)
9531 comp1
= compare_version_strings (switch_value
, argv
[1]);
9533 comp2
= compare_version_strings (switch_value
, argv
[2]);
9535 comp2
= -1; /* This value unused. */
9538 switch (argv
[0][0] << 8 | argv
[0][1])
9540 case '>' << 8 | '=':
9541 result
= comp1
>= 0;
9543 case '!' << 8 | '<':
9544 result
= comp1
>= 0 || switch_value
== NULL
;
9549 case '!' << 8 | '>':
9550 result
= comp1
< 0 || switch_value
== NULL
;
9552 case '>' << 8 | '<':
9553 result
= comp1
>= 0 && comp2
< 0;
9555 case '<' << 8 | '>':
9556 result
= comp1
< 0 || comp2
>= 0;
9560 fatal_error (input_location
,
9561 "unknown operator %qs in %%:version-compare", argv
[0]);
9566 return argv
[nargs
+ 2];
9569 /* %:include builtin spec function. This differs from %include in that it
9570 can be nested inside a spec, and thus be conditionalized. It takes
9571 one argument, the filename, and looks for it in the startfile path.
9572 The result is always NULL, i.e. an empty expansion. */
9575 include_spec_function (int argc
, const char **argv
)
9582 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
9583 read_specs (file
? file
: argv
[0], false, false);
9588 /* %:find-file spec function. This function replaces its argument by
9589 the file found through find_file, that is the -print-file-name gcc
9592 find_file_spec_function (int argc
, const char **argv
)
9599 file
= find_file (argv
[0]);
9604 /* %:find-plugindir spec function. This function replaces its argument
9605 by the -iplugindir=<dir> option. `dir' is found through find_file, that
9606 is the -print-file-name gcc program option. */
9608 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
9615 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
9620 /* %:print-asm-header spec function. Print a banner to say that the
9621 following output is from the assembler. */
9624 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
9625 const char **argv ATTRIBUTE_UNUSED
)
9627 printf (_("Assembler options\n=================\n\n"));
9628 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
9633 /* Get a random number for -frandom-seed */
9635 static unsigned HOST_WIDE_INT
9636 get_random_number (void)
9638 unsigned HOST_WIDE_INT ret
= 0;
9641 fd
= open ("/dev/urandom", O_RDONLY
);
9644 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
9650 /* Get some more or less random data. */
9651 #ifdef HAVE_GETTIMEOFDAY
9655 gettimeofday (&tv
, NULL
);
9656 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
9660 time_t now
= time (NULL
);
9662 if (now
!= (time_t)-1)
9663 ret
= (unsigned) now
;
9667 return ret
^ getpid ();
9670 /* %:compare-debug-dump-opt spec function. Save the last argument,
9671 expected to be the last -fdump-final-insns option, or generate a
9675 compare_debug_dump_opt_spec_function (int arg
,
9676 const char **argv ATTRIBUTE_UNUSED
)
9681 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
9684 fatal_error (input_location
,
9685 "too many arguments to %%:compare-debug-dump-opt");
9687 do_spec_2 ("%{fdump-final-insns=*:%*}");
9688 do_spec_1 (" ", 0, NULL
);
9690 if (argbuf
.length () > 0
9691 && strcmp (argv
[argbuf
.length () - 1], "."))
9696 name
= xstrdup (argv
[argbuf
.length () - 1]);
9701 const char *ext
= NULL
;
9703 if (argbuf
.length () > 0)
9705 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
9708 else if (!compare_debug
)
9711 do_spec_2 ("%g.gkd");
9713 do_spec_1 (" ", 0, NULL
);
9715 gcc_assert (argbuf
.length () > 0);
9717 name
= concat (argbuf
.last (), ext
, NULL
);
9719 ret
= concat ("-fdump-final-insns=", name
, NULL
);
9722 which
= compare_debug
< 0;
9723 debug_check_temp_file
[which
] = name
;
9727 unsigned HOST_WIDE_INT value
= get_random_number ();
9729 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
9735 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
9746 static const char *debug_auxbase_opt
;
9748 /* %:compare-debug-self-opt spec function. Expands to the options
9749 that are to be passed in the second compilation of
9753 compare_debug_self_opt_spec_function (int arg
,
9754 const char **argv ATTRIBUTE_UNUSED
)
9757 fatal_error (input_location
,
9758 "too many arguments to %%:compare-debug-self-opt");
9760 if (compare_debug
>= 0)
9763 do_spec_2 ("%{c|S:%{o*:%*}}");
9764 do_spec_1 (" ", 0, NULL
);
9766 if (argbuf
.length () > 0)
9767 debug_auxbase_opt
= concat ("-auxbase-strip ",
9771 debug_auxbase_opt
= NULL
;
9774 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
9775 %<fdump-final-insns=* -w -S -o %j \
9776 %{!fcompare-debug-second:-fcompare-debug-second} \
9777 ", compare_debug_opt
, NULL
);
9780 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
9781 options that are to be passed in the second compilation of
9782 compare-debug. It expects, as an argument, the basename of the
9783 current input file name, with the .gk suffix appended to it. */
9786 compare_debug_auxbase_opt_spec_function (int arg
,
9793 fatal_error (input_location
,
9794 "too few arguments to %%:compare-debug-auxbase-opt");
9797 fatal_error (input_location
,
9798 "too many arguments to %%:compare-debug-auxbase-opt");
9800 if (compare_debug
>= 0)
9803 len
= strlen (argv
[0]);
9804 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
9805 fatal_error (input_location
, "argument to %%:compare-debug-auxbase-opt "
9806 "does not end in .gk");
9808 if (debug_auxbase_opt
)
9809 return debug_auxbase_opt
;
9811 #define OPT "-auxbase "
9814 name
= (char*) xmalloc (sizeof (OPT
) + len
);
9815 memcpy (name
, OPT
, sizeof (OPT
) - 1);
9816 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
9817 name
[sizeof (OPT
) - 1 + len
] = '\0';
9824 /* %:pass-through-libs spec function. Finds all -l options and input
9825 file names in the lib spec passed to it, and makes a list of them
9826 prepended with the plugin option to cause them to be passed through
9827 to the final link after all the new object files have been added. */
9830 pass_through_libs_spec_func (int argc
, const char **argv
)
9832 char *prepended
= xstrdup (" ");
9834 /* Shlemiel the painter's algorithm. Innately horrible, but at least
9835 we know that there will never be more than a handful of strings to
9836 concat, and it's only once per run, so it's not worth optimising. */
9837 for (n
= 0; n
< argc
; n
++)
9839 char *old
= prepended
;
9840 /* Anything that isn't an option is a full path to an output
9841 file; pass it through if it ends in '.a'. Among options,
9843 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
9845 const char *lopt
= argv
[n
] + 2;
9846 /* Handle both joined and non-joined -l options. If for any
9847 reason there's a trailing -l with no joined or following
9848 arg just discard it. */
9849 if (!*lopt
&& ++n
>= argc
)
9853 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
9856 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
9858 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
9859 argv
[n
], " ", NULL
);
9861 if (prepended
!= old
)
9867 /* %:replace-extension spec function. Replaces the extension of the
9868 first argument with the second argument. */
9871 replace_extension_spec_func (int argc
, const char **argv
)
9879 fatal_error (input_location
, "too few arguments to %%:replace-extension");
9881 name
= xstrdup (argv
[0]);
9883 for (i
= strlen (name
) - 1; i
>= 0; i
--)
9884 if (IS_DIR_SEPARATOR (name
[i
]))
9887 p
= strrchr (name
+ i
+ 1, '.');
9891 result
= concat (name
, argv
[1], NULL
);
9897 /* Returns "" if ARGV[ARGC - 2] is greater than ARGV[ARGC-1].
9898 Otherwise, return NULL. */
9901 greater_than_spec_func (int argc
, const char **argv
)
9908 gcc_assert (argc
>= 2);
9910 long arg
= strtol (argv
[argc
- 2], &converted
, 10);
9911 gcc_assert (converted
!= argv
[argc
- 2]);
9913 long lim
= strtol (argv
[argc
- 1], &converted
, 10);
9914 gcc_assert (converted
!= argv
[argc
- 1]);
9922 /* Returns "" if debug_info_level is greater than ARGV[ARGC-1].
9923 Otherwise, return NULL. */
9926 debug_level_greater_than_spec_func (int argc
, const char **argv
)
9931 fatal_error (input_location
,
9932 "wrong number of arguments to %%:debug-level-gt");
9934 long arg
= strtol (argv
[0], &converted
, 10);
9935 gcc_assert (converted
!= argv
[0]);
9937 if (debug_info_level
> arg
)
9943 /* Insert backslash before spaces in ORIG (usually a file path), to
9944 avoid being broken by spec parser.
9946 This function is needed as do_spec_1 treats white space (' ' and '\t')
9947 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
9948 the file name should be treated as a single argument rather than being
9949 broken into multiple. Solution is to insert '\\' before the space in a
9952 This function converts and only converts all occurrence of ' '
9953 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
9957 "a\\ b" -> "a\\\\ b"
9959 orig: input null-terminating string that was allocated by xalloc. The
9960 memory it points to might be freed in this function. Behavior undefined
9961 if ORIG wasn't xalloced or was freed already at entry.
9963 Return: ORIG if no conversion needed. Otherwise a newly allocated string
9964 that was converted from ORIG. */
9967 convert_white_space (char *orig
)
9969 int len
, number_of_space
= 0;
9971 for (len
= 0; orig
[len
]; len
++)
9972 if (orig
[len
] == ' ' || orig
[len
] == '\t') number_of_space
++;
9974 if (number_of_space
)
9976 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
9978 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
9980 if (orig
[j
] == ' ' || orig
[j
] == '\t')
9981 new_spec
[k
++] = '\\';
9982 new_spec
[k
] = orig
[j
];
9992 path_prefix_reset (path_prefix
*prefix
)
9994 struct prefix_list
*iter
, *next
;
9995 iter
= prefix
->plist
;
9999 free (const_cast <char *> (iter
->prefix
));
10004 prefix
->max_len
= 0;
10007 /* Restore all state within gcc.c to the initial state, so that the driver
10008 code can be safely re-run in-process.
10010 Many const char * variables are referenced by static specs (see
10011 INIT_STATIC_SPEC above). These variables are restored to their default
10012 values by a simple loop over the static specs.
10014 For other variables, we directly restore them all to their initial
10015 values (often implicitly 0).
10017 Free the various obstacks in this file, along with "opts_obstack"
10020 This function also restores any environment variables that were changed. */
10023 driver::finalize ()
10026 params_c_finalize ();
10027 diagnostic_finish (global_dc
);
10030 at_file_supplied
= 0;
10031 print_help_list
= 0;
10033 verbose_only_flag
= 0;
10034 print_subprocess_help
= 0;
10036 report_times_to_file
= NULL
;
10037 target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
10038 target_system_root_changed
= 0;
10039 target_sysroot_suffix
= 0;
10040 target_sysroot_hdrs_suffix
= 0;
10041 save_temps_flag
= SAVE_TEMPS_NONE
;
10042 save_temps_prefix
= 0;
10043 save_temps_length
= 0;
10044 spec_machine
= DEFAULT_TARGET_MACHINE
;
10045 greatest_status
= 1;
10047 finalize_options_struct (&global_options
);
10048 finalize_options_struct (&global_options_set
);
10050 obstack_free (&obstack
, NULL
);
10051 obstack_free (&opts_obstack
, NULL
); /* in opts.c */
10052 obstack_free (&collect_obstack
, NULL
);
10054 link_command_spec
= LINK_COMMAND_SPEC
;
10056 obstack_free (&multilib_obstack
, NULL
);
10058 user_specs_head
= NULL
;
10059 user_specs_tail
= NULL
;
10061 /* Within the "compilers" vec, the fields "suffix" and "spec" were
10062 statically allocated for the default compilers, but dynamically
10063 allocated for additional compilers. Delete them for the latter. */
10064 for (int i
= n_default_compilers
; i
< n_compilers
; i
++)
10066 free (const_cast <char *> (compilers
[i
].suffix
));
10067 free (const_cast <char *> (compilers
[i
].spec
));
10069 XDELETEVEC (compilers
);
10073 linker_options
.truncate (0);
10074 assembler_options
.truncate (0);
10075 preprocessor_options
.truncate (0);
10077 path_prefix_reset (&exec_prefixes
);
10078 path_prefix_reset (&startfile_prefixes
);
10079 path_prefix_reset (&include_prefixes
);
10081 machine_suffix
= 0;
10082 just_machine_suffix
= 0;
10083 gcc_exec_prefix
= 0;
10084 gcc_libexec_prefix
= 0;
10085 md_exec_prefix
= MD_EXEC_PREFIX
;
10086 md_startfile_prefix
= MD_STARTFILE_PREFIX
;
10087 md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
10089 multilib_os_dir
= 0;
10092 /* Free any specs dynamically-allocated by set_spec.
10093 These will be at the head of the list, before the
10094 statically-allocated ones. */
10097 while (specs
!= static_specs
)
10099 spec_list
*next
= specs
->next
;
10100 free (const_cast <char *> (specs
->name
));
10106 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
10108 spec_list
*sl
= &static_specs
[i
];
10112 free (const_cast <char *> (*(sl
->ptr_spec
)));
10113 sl
->alloc_p
= false;
10115 *(sl
->ptr_spec
) = sl
->default_ptr
;
10118 extra_specs
= NULL
;
10121 processing_spec_function
= 0;
10123 argbuf
.truncate (0);
10129 execution_count
= 0;
10132 temp_filename
= NULL
;
10133 temp_filename_length
= 0;
10134 always_delete_queue
= NULL
;
10135 failure_delete_queue
= NULL
;
10137 XDELETEVEC (switches
);
10140 n_switches_alloc
= 0;
10143 compare_debug_second
= 0;
10144 compare_debug_opt
= NULL
;
10145 for (int i
= 0; i
< 2; i
++)
10147 switches_debug_check
[i
] = NULL
;
10148 n_switches_debug_check
[i
] = 0;
10149 n_switches_alloc_debug_check
[i
] = 0;
10150 debug_check_temp_file
[i
] = NULL
;
10153 XDELETEVEC (infiles
);
10156 n_infiles_alloc
= 0;
10158 combine_inputs
= false;
10159 added_libraries
= 0;
10160 XDELETEVEC (outfiles
);
10163 last_language_n_infiles
= 0;
10164 gcc_input_filename
= NULL
;
10165 input_file_number
= 0;
10166 input_filename_length
= 0;
10167 basename_length
= 0;
10168 suffixed_basename_length
= 0;
10169 input_basename
= NULL
;
10170 input_suffix
= NULL
;
10171 /* We don't need to purge "input_stat", just to unset "input_stat_set". */
10172 input_stat_set
= 0;
10173 input_file_compiler
= NULL
;
10175 delete_this_arg
= 0;
10176 this_is_output_file
= 0;
10177 this_is_library_file
= 0;
10178 this_is_linker_script
= 0;
10179 input_from_pipe
= 0;
10180 suffix_subst
= NULL
;
10185 debug_auxbase_opt
= NULL
;
10187 used_arg
.finalize ();
10191 Targets can provide configure-time default options in
10192 OPTION_DEFAULT_SPECS. The jit needs to access these, but
10193 they are expressed in the spec language.
10195 Run just enough of the driver to be able to expand these
10196 specs, and then call the callback CB on each
10197 such option. The options strings are *without* a leading
10198 '-' character e.g. ("march=x86-64"). Finally, clean up. */
10201 driver_get_configure_time_options (void (*cb
) (const char *option
,
10207 obstack_init (&obstack
);
10208 init_opts_obstack ();
10211 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
10212 do_option_spec (option_default_specs
[i
].name
,
10213 option_default_specs
[i
].spec
);
10215 for (i
= 0; (int) i
< n_switches
; i
++)
10217 gcc_assert (switches
[i
].part1
);
10218 (*cb
) (switches
[i
].part1
, user_data
);
10221 obstack_free (&opts_obstack
, NULL
);
10222 obstack_free (&obstack
, NULL
);