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 char *convert_white_space (char *);
407 /* The Specs Language
409 Specs are strings containing lines, each of which (if not blank)
410 is made up of a program name, and arguments separated by spaces.
411 The program name must be exact and start from root, since no path
412 is searched and it is unreliable to depend on the current working directory.
413 Redirection of input or output is not supported; the subprograms must
414 accept filenames saying what files to read and write.
416 In addition, the specs can contain %-sequences to substitute variable text
417 or for conditional text. Here is a table of all defined %-sequences.
418 Note that spaces are not generated automatically around the results of
419 expanding these sequences; therefore, you can concatenate them together
420 or with constant text in a single argument.
422 %% substitute one % into the program name or argument.
423 %i substitute the name of the input file being processed.
424 %b substitute the basename of the input file being processed.
425 This is the substring up to (and not including) the last period
426 and not including the directory unless -save-temps was specified
427 to put temporaries in a different location.
428 %B same as %b, but include the file suffix (text after the last period).
430 substitute a file name that has suffix SUFFIX and is chosen
431 once per compilation, and mark the argument a la %d. To reduce
432 exposure to denial-of-service attacks, the file name is now
433 chosen in a way that is hard to predict even when previously
434 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
435 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
436 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
437 had been pre-processed. Previously, %g was simply substituted
438 with a file name chosen once per compilation, without regard
439 to any appended suffix (which was therefore treated just like
440 ordinary text), making such attacks more likely to succeed.
442 like %g, but if -pipe is in effect, expands simply to "-".
444 like %g, but if -pipe is in effect, expands to nothing. (We have both
445 %| and %m to accommodate differences between system assemblers; see
446 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
448 like %g, but generates a new temporary file name even if %uSUFFIX
451 substitutes the last file name generated with %uSUFFIX, generating a
452 new one if there is no such last file name. In the absence of any
453 %uSUFFIX, this is just like %gSUFFIX, except they don't share
454 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
455 would involve the generation of two distinct file names, one
456 for each `%g.s' and another for each `%U.s'. Previously, %U was
457 simply substituted with a file name chosen for the previous %u,
458 without regard to any appended suffix.
460 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
461 writable, and if save-temps is off; otherwise, substitute the name
462 of a temporary file, just like %u. This temporary file is not
463 meant for communication between processes, but rather as a junk
466 substitutes .SUFFIX for the suffixes of a matched switch's args when
467 it is subsequently output with %*. SUFFIX is terminated by the next
469 %d marks the argument containing or following the %d as a
470 temporary file name, so that file will be deleted if GCC exits
471 successfully. Unlike %g, this contributes no text to the argument.
472 %w marks the argument containing or following the %w as the
473 "output file" of this compilation. This puts the argument
474 into the sequence of arguments that %o will substitute later.
475 %V indicates that this compilation produces no "output file".
477 like %{...} but mark last argument supplied within
478 as a file to be deleted on failure.
479 %o substitutes the names of all the output files, with spaces
480 automatically placed around them. You should write spaces
481 around the %o as well or the results are undefined.
482 %o is for use in the specs for running the linker.
483 Input files whose names have no recognized suffix are not compiled
484 at all, but they are included among the output files, so they will
486 %O substitutes the suffix for object files. Note that this is
487 handled specially when it immediately follows %g, %u, or %U
488 (with or without a suffix argument) because of the need for
489 those to form complete file names. The handling is such that
490 %O is treated exactly as if it had already been substituted,
491 except that %g, %u, and %U do not currently support additional
492 SUFFIX characters following %O as they would following, for
494 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
495 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
496 and -B options) and -imultilib as necessary.
497 %s current argument is the name of a library or startup file of some sort.
498 Search for that file in a standard list of directories
499 and substitute the full name found.
500 %eSTR Print STR as an error message. STR is terminated by a newline.
501 Use this when inconsistent options are detected.
502 %nSTR Print STR as a notice. STR is terminated by a newline.
503 %x{OPTION} Accumulate an option for %X.
504 %X Output the accumulated linker options specified by compilations.
505 %Y Output the accumulated assembler options specified by compilations.
506 %Z Output the accumulated preprocessor options specified by compilations.
507 %a process ASM_SPEC as a spec.
508 This allows config.h to specify part of the spec for running as.
509 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
510 used here. This can be used to run a post-processor after the
511 assembler has done its job.
512 %D Dump out a -L option for each directory in startfile_prefixes.
513 If multilib_dir is set, extra entries are generated with it affixed.
514 %l process LINK_SPEC as a spec.
515 %L process LIB_SPEC as a spec.
516 %M Output multilib_os_dir.
517 %G process LIBGCC_SPEC as a spec.
518 %R Output the concatenation of target_system_root and
519 target_sysroot_suffix.
520 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
521 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
522 %C process CPP_SPEC as a spec.
523 %1 process CC1_SPEC as a spec.
524 %2 process CC1PLUS_SPEC as a spec.
525 %* substitute the variable part of a matched option. (See below.)
526 Note that each comma in the substituted string is replaced by
527 a single space. A space is appended after the last substition
528 unless there is more text in current sequence.
529 %<S remove all occurrences of -S from the command line.
530 Note - this command is position dependent. % commands in the
531 spec string before this one will see -S, % commands in the
532 spec string after this one will not.
533 %>S Similar to "%<S", but keep it in the GCC command line.
534 %<S* remove all occurrences of all switches beginning with -S from the
537 Call the named function FUNCTION, passing it ARGS. ARGS is
538 first processed as a nested spec string, then split into an
539 argument vector in the usual fashion. The function returns
540 a string which is processed as if it had appeared literally
541 as part of the current spec.
542 %{S} substitutes the -S switch, if that switch was given to GCC.
543 If that switch was not specified, this substitutes nothing.
544 Here S is a metasyntactic variable.
545 %{S*} substitutes all the switches specified to GCC whose names start
546 with -S. This is used for -o, -I, etc; switches that take
547 arguments. GCC considers `-o foo' as being one switch whose
548 name starts with `o'. %{o*} would substitute this text,
549 including the space; thus, two arguments would be generated.
550 %{S*&T*} likewise, but preserve order of S and T options (the order
551 of S and T in the spec is not significant). Can be any number
552 of ampersand-separated variables; for each the wild card is
553 optional. Useful for CPP as %{D*&U*&A*}.
555 %{S:X} substitutes X, if the -S switch was given to GCC.
556 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
557 %{S*:X} substitutes X if one or more switches whose names start
558 with -S was given to GCC. Normally X is substituted only
559 once, no matter how many such switches appeared. However,
560 if %* appears somewhere in X, then X will be substituted
561 once for each matching switch, with the %* replaced by the
562 part of that switch that matched the '*'. A space will be
563 appended after the last substition unless there is more
564 text in current sequence.
565 %{.S:X} substitutes X, if processing a file with suffix S.
566 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
567 %{,S:X} substitutes X, if processing a file which will use spec S.
568 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
570 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
571 combined with '!', '.', ',', and '*' as above binding stronger
573 If %* appears in X, all of the alternatives must be starred, and
574 only the first matching alternative is substituted.
575 %{%:function(args):X}
576 Call function named FUNCTION with args ARGS. If the function
577 returns non-NULL, then X is substituted, if it returns
578 NULL, it isn't substituted.
579 %{S:X; if S was given to GCC, substitutes X;
580 T:Y; else if T was given to GCC, substitutes Y;
581 :D} else substitutes D. There can be as many clauses as you need.
582 This may be combined with '.', '!', ',', '|', and '*' as above.
584 %(Spec) processes a specification defined in a specs file as *Spec:
586 The conditional text X in a %{S:X} or similar construct may contain
587 other nested % constructs or spaces, or even newlines. They are
588 processed as usual, as described above. Trailing white space in X is
589 ignored. White space may also appear anywhere on the left side of the
590 colon in these constructs, except between . or * and the corresponding
593 The -O, -f, -g, -m, and -W switches are handled specifically in these
594 constructs. If another value of -O or the negated form of a -f, -m, or
595 -W switch is found later in the command line, the earlier switch
596 value is ignored, except with {S*} where S is just one letter; this
597 passes all matching options.
599 The character | at the beginning of the predicate text is used to indicate
600 that a command should be piped to the following command, but only if -pipe
603 Note that it is built into GCC which switches take arguments and which
604 do not. You might think it would be useful to generalize this to
605 allow each compiler's spec to say which switches take arguments. But
606 this cannot be done in a consistent fashion. GCC cannot even decide
607 which input files have been specified without knowing which switches
608 take arguments, and it must know which input files to compile in order
609 to tell which compilers to run.
611 GCC also knows implicitly that arguments starting in `-l' are to be
612 treated as compiler output files, and passed to the linker in their
613 proper position among the other output files. */
615 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
617 /* config.h can define ASM_SPEC to provide extra args to the assembler
618 or extra switch-translations. */
623 /* config.h can define ASM_FINAL_SPEC to run a post processor after
624 the assembler has run. */
625 #ifndef ASM_FINAL_SPEC
626 #define ASM_FINAL_SPEC \
628 objcopy --extract-dwo \
629 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
630 %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\
631 objcopy --strip-dwo \
632 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
636 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
637 or extra switch-translations. */
642 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
643 or extra switch-translations. */
648 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
649 or extra switch-translations. */
651 #define CC1PLUS_SPEC ""
654 /* config.h can define LINK_SPEC to provide extra args to the linker
655 or extra switch-translations. */
660 /* config.h can define LIB_SPEC to override the default libraries. */
662 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
665 /* When using -fsplit-stack we need to wrap pthread_create, in order
666 to initialize the stack guard. We always use wrapping, rather than
667 shared library ordering, and we keep the wrapper function in
668 libgcc. This is not yet a real spec, though it could become one;
669 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
670 only works with GNU ld and gold. */
671 #ifdef HAVE_GOLD_NON_DEFAULT_SPLIT_STACK
672 #define STACK_SPLIT_SPEC " %{fsplit-stack: -fuse-ld=gold --wrap=pthread_create}"
674 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
678 #define STATIC_LIBASAN_LIBS \
679 " %{static-libasan:%:include(libsanitizer.spec)%(link_libasan)}"
680 #ifdef LIBASAN_EARLY_SPEC
681 #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
682 #elif defined(HAVE_LD_STATIC_DYNAMIC)
683 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
684 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
687 #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
691 #ifndef LIBASAN_EARLY_SPEC
692 #define LIBASAN_EARLY_SPEC ""
696 #define STATIC_LIBTSAN_LIBS \
697 " %{static-libtsan:%:include(libsanitizer.spec)%(link_libtsan)}"
698 #ifdef LIBTSAN_EARLY_SPEC
699 #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
700 #elif defined(HAVE_LD_STATIC_DYNAMIC)
701 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
702 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
705 #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
709 #ifndef LIBTSAN_EARLY_SPEC
710 #define LIBTSAN_EARLY_SPEC ""
714 #define STATIC_LIBLSAN_LIBS \
715 " %{static-liblsan:%:include(libsanitizer.spec)%(link_liblsan)}"
716 #ifdef LIBLSAN_EARLY_SPEC
717 #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
718 #elif defined(HAVE_LD_STATIC_DYNAMIC)
719 #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
720 "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
723 #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
727 #ifndef LIBLSAN_EARLY_SPEC
728 #define LIBLSAN_EARLY_SPEC ""
731 #ifndef LIBUBSAN_SPEC
732 #define STATIC_LIBUBSAN_LIBS \
733 " %{static-libubsan:%:include(libsanitizer.spec)%(link_libubsan)}"
734 #ifdef HAVE_LD_STATIC_DYNAMIC
735 #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
736 "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
739 #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
743 /* Linker options for compressed debug sections. */
744 #if HAVE_LD_COMPRESS_DEBUG == 0
745 /* No linker support. */
746 #define LINK_COMPRESS_DEBUG_SPEC \
747 " %{gz*:%e-gz is not supported in this configuration} "
748 #elif HAVE_LD_COMPRESS_DEBUG == 1
749 /* GNU style on input, GNU ld options. Reject, not useful. */
750 #define LINK_COMPRESS_DEBUG_SPEC \
751 " %{gz*:%e-gz is not supported in this configuration} "
752 #elif HAVE_LD_COMPRESS_DEBUG == 2
753 /* GNU style, GNU gold options. */
754 #define LINK_COMPRESS_DEBUG_SPEC \
755 " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
756 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
757 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
758 #elif HAVE_LD_COMPRESS_DEBUG == 3
759 /* ELF gABI style. */
760 #define LINK_COMPRESS_DEBUG_SPEC \
761 " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
762 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
763 " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
765 #error Unknown value for HAVE_LD_COMPRESS_DEBUG.
768 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
771 #if defined(REAL_LIBGCC_SPEC)
772 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
773 #elif defined(LINK_LIBGCC_SPECIAL_1)
774 /* Have gcc do the search for libgcc.a. */
775 #define LIBGCC_SPEC "libgcc.a%s"
777 #define LIBGCC_SPEC "-lgcc"
781 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
782 #ifndef STARTFILE_SPEC
783 #define STARTFILE_SPEC \
784 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
787 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
789 #define ENDFILE_SPEC ""
793 #define LINKER_NAME "collect2"
796 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
797 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
802 /* Assembler options for compressed debug sections. */
803 #if HAVE_LD_COMPRESS_DEBUG < 2
804 /* Reject if the linker cannot write compressed debug sections. */
805 #define ASM_COMPRESS_DEBUG_SPEC \
806 " %{gz*:%e-gz is not supported in this configuration} "
807 #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */
808 #if HAVE_AS_COMPRESS_DEBUG == 0
809 /* No assembler support. Ignore silently. */
810 #define ASM_COMPRESS_DEBUG_SPEC \
812 #elif HAVE_AS_COMPRESS_DEBUG == 1
813 /* GNU style, GNU as options. */
814 #define ASM_COMPRESS_DEBUG_SPEC \
815 " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \
816 " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \
817 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
818 #elif HAVE_AS_COMPRESS_DEBUG == 2
819 /* ELF gABI style. */
820 #define ASM_COMPRESS_DEBUG_SPEC \
821 " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
822 " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
823 " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
825 #error Unknown value for HAVE_AS_COMPRESS_DEBUG.
827 #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */
829 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
831 #ifndef ASM_DEBUG_SPEC
832 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
833 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
834 # define ASM_DEBUG_SPEC \
835 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
836 ? "%{!g0:%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \
837 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
839 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
840 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
842 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
843 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
847 #ifndef ASM_DEBUG_SPEC
848 # define ASM_DEBUG_SPEC ""
851 /* Here is the spec for running the linker, after compiling all files. */
853 /* This is overridable by the target in case they need to specify the
854 -lgcc and -lc order specially, yet not require them to override all
855 of LINK_COMMAND_SPEC. */
856 #ifndef LINK_GCC_C_SEQUENCE_SPEC
857 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
860 #ifndef LINK_SSP_SPEC
861 #ifdef TARGET_LIBC_PROVIDES_SSP
862 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
863 "|fstack-protector-strong|fstack-protector-explicit:}"
865 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
866 "|fstack-protector-strong|fstack-protector-explicit" \
867 ":-lssp_nonshared -lssp}"
871 #ifdef ENABLE_DEFAULT_PIE
872 #define NO_PIE_SPEC "no-pie|static"
873 #define PIE_SPEC NO_PIE_SPEC "|r|shared:;"
874 #define NO_FPIE1_SPEC "fno-pie"
875 #define FPIE1_SPEC NO_FPIE1_SPEC ":;"
876 #define NO_FPIE2_SPEC "fno-PIE"
877 #define FPIE2_SPEC NO_FPIE2_SPEC ":;"
878 #define NO_FPIE_SPEC NO_FPIE1_SPEC "|" NO_FPIE2_SPEC
879 #define FPIE_SPEC NO_FPIE_SPEC ":;"
880 #define NO_FPIC1_SPEC "fno-pic"
881 #define FPIC1_SPEC NO_FPIC1_SPEC ":;"
882 #define NO_FPIC2_SPEC "fno-PIC"
883 #define FPIC2_SPEC NO_FPIC2_SPEC ":;"
884 #define NO_FPIC_SPEC NO_FPIC1_SPEC "|" NO_FPIC2_SPEC
885 #define FPIC_SPEC NO_FPIC_SPEC ":;"
886 #define NO_FPIE1_AND_FPIC1_SPEC NO_FPIE1_SPEC "|" NO_FPIC1_SPEC
887 #define FPIE1_OR_FPIC1_SPEC NO_FPIE1_AND_FPIC1_SPEC ":;"
888 #define NO_FPIE2_AND_FPIC2_SPEC NO_FPIE2_SPEC "|" NO_FPIC2_SPEC
889 #define FPIE2_OR_FPIC2_SPEC NO_FPIE2_AND_FPIC2_SPEC ":;"
890 #define NO_FPIE_AND_FPIC_SPEC NO_FPIE_SPEC "|" NO_FPIC_SPEC
891 #define FPIE_OR_FPIC_SPEC NO_FPIE_AND_FPIC_SPEC ":;"
893 #define PIE_SPEC "pie"
894 #define NO_PIE_SPEC PIE_SPEC "|r|shared:;"
895 #define FPIE1_SPEC "fpie"
896 #define NO_FPIE1_SPEC FPIE1_SPEC ":;"
897 #define FPIE2_SPEC "fPIE"
898 #define NO_FPIE2_SPEC FPIE2_SPEC ":;"
899 #define FPIE_SPEC FPIE1_SPEC "|" FPIE2_SPEC
900 #define NO_FPIE_SPEC FPIE_SPEC ":;"
901 #define FPIC1_SPEC "fpic"
902 #define NO_FPIC1_SPEC FPIC1_SPEC ":;"
903 #define FPIC2_SPEC "fPIC"
904 #define NO_FPIC2_SPEC FPIC2_SPEC ":;"
905 #define FPIC_SPEC FPIC1_SPEC "|" FPIC2_SPEC
906 #define NO_FPIC_SPEC FPIC_SPEC ":;"
907 #define FPIE1_OR_FPIC1_SPEC FPIE1_SPEC "|" FPIC1_SPEC
908 #define NO_FPIE1_AND_FPIC1_SPEC FPIE1_OR_FPIC1_SPEC ":;"
909 #define FPIE2_OR_FPIC2_SPEC FPIE2_SPEC "|" FPIC2_SPEC
910 #define NO_FPIE2_AND_FPIC2_SPEC FPIE1_OR_FPIC2_SPEC ":;"
911 #define FPIE_OR_FPIC_SPEC FPIE_SPEC "|" FPIC_SPEC
912 #define NO_FPIE_AND_FPIC_SPEC FPIE_OR_FPIC_SPEC ":;"
915 #ifndef LINK_PIE_SPEC
918 #define LD_PIE_SPEC "-pie"
921 #define LD_PIE_SPEC ""
923 #define LINK_PIE_SPEC "%{no-pie:} " "%{" PIE_SPEC ":" LD_PIE_SPEC "} "
926 #ifndef LINK_BUILDID_SPEC
927 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
928 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
932 /* Conditional to test whether the LTO plugin is used or not.
933 FIXME: For slim LTO we will need to enable plugin unconditionally. This
934 still cause problems with PLUGIN_LD != LD and when plugin is built but
935 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
936 plugin only when LTO is enabled. We still honor explicit
937 -fuse-linker-plugin if the linker used understands -plugin. */
939 /* The linker has some plugin support. */
940 #if HAVE_LTO_PLUGIN > 0
941 /* The linker used has full plugin support, use LTO plugin by default. */
942 #if HAVE_LTO_PLUGIN == 2
943 #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
944 #define PLUGIN_COND_CLOSE "}"
946 /* The linker used has limited plugin support, use LTO plugin with explicit
947 -fuse-linker-plugin. */
948 #define PLUGIN_COND "fuse-linker-plugin"
949 #define PLUGIN_COND_CLOSE ""
951 #define LINK_PLUGIN_SPEC \
953 -plugin %(linker_plugin_file) \
954 -plugin-opt=%(lto_wrapper) \
955 -plugin-opt=-fresolution=%u.res \
956 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
959 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
960 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
961 %e-fuse-linker-plugin is not supported in this configuration}"
964 /* Linker command line options for -fsanitize= early on the command line. */
965 #ifndef SANITIZER_EARLY_SPEC
966 #define SANITIZER_EARLY_SPEC "\
967 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
968 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
969 %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}"
972 /* Linker command line options for -fsanitize= late on the command line. */
973 #ifndef SANITIZER_SPEC
974 #define SANITIZER_SPEC "\
975 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
976 %{static:%ecannot specify -static with -fsanitize=address}}\
977 %{%:sanitize(thread):" LIBTSAN_SPEC "\
978 %{static:%ecannot specify -static with -fsanitize=thread}}\
979 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
980 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}"
983 #ifndef POST_LINK_SPEC
984 #define POST_LINK_SPEC ""
987 /* This is the spec to use, once the code for creating the vtable
988 verification runtime library, libvtv.so, has been created. Currently
989 the vtable verification runtime functions are in libstdc++, so we use
990 the spec just below this one. */
991 #ifndef VTABLE_VERIFICATION_SPEC
992 #if ENABLE_VTABLE_VERIFY
993 #define VTABLE_VERIFICATION_SPEC "\
994 %{!nostdlib:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
995 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}"
997 #define VTABLE_VERIFICATION_SPEC "\
998 %{fvtable-verify=none:} \
999 %{fvtable-verify=std: \
1000 %e-fvtable-verify=std is not supported in this configuration} \
1001 %{fvtable-verify=preinit: \
1002 %e-fvtable-verify=preinit is not supported in this configuration}"
1007 #define CHKP_SPEC ""
1010 /* -u* was put back because both BSD and SysV seem to support it. */
1011 /* %{static:} simply prevents an error message if the target machine
1012 doesn't handle -static. */
1013 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
1014 scripts which exist in user specified directories, or in standard
1016 /* We pass any -flto flags on to the linker, which is expected
1017 to understand them. In practice, this means it had better be collect2. */
1018 /* %{e*} includes -export-dynamic; see comment in common.opt. */
1019 #ifndef LINK_COMMAND_SPEC
1020 #define LINK_COMMAND_SPEC "\
1021 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
1024 "%{flto|flto=*:%<fcompare-debug*} \
1025 %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
1026 "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
1027 "%X %{o*} %{e*} %{N} %{n} %{r}\
1028 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} \
1029 %{static:} %{L*} %(mfwrap) %(link_libgcc) " \
1030 VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o " CHKP_SPEC " \
1031 %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
1032 %:include(libgomp.spec)%(link_gomp)}\
1033 %{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}\
1034 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
1035 %(mflib) " STACK_SPLIT_SPEC "\
1036 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
1037 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
1038 %{!nostdlib:%{!nostartfiles:%E}} %{T*} \n%(post_link) }}}}}}"
1041 #ifndef LINK_LIBGCC_SPEC
1042 /* Generate -L options for startfile prefix list. */
1043 # define LINK_LIBGCC_SPEC "%D"
1046 #ifndef STARTFILE_PREFIX_SPEC
1047 # define STARTFILE_PREFIX_SPEC ""
1050 #ifndef SYSROOT_SPEC
1051 # define SYSROOT_SPEC "--sysroot=%R"
1054 #ifndef SYSROOT_SUFFIX_SPEC
1055 # define SYSROOT_SUFFIX_SPEC ""
1058 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
1059 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
1062 static const char *asm_debug
= ASM_DEBUG_SPEC
;
1063 static const char *cpp_spec
= CPP_SPEC
;
1064 static const char *cc1_spec
= CC1_SPEC
;
1065 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
1066 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
1067 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
1068 static const char *asm_spec
= ASM_SPEC
;
1069 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
1070 static const char *link_spec
= LINK_SPEC
;
1071 static const char *lib_spec
= LIB_SPEC
;
1072 static const char *link_gomp_spec
= "";
1073 static const char *libgcc_spec
= LIBGCC_SPEC
;
1074 static const char *endfile_spec
= ENDFILE_SPEC
;
1075 static const char *startfile_spec
= STARTFILE_SPEC
;
1076 static const char *linker_name_spec
= LINKER_NAME
;
1077 static const char *linker_plugin_file_spec
= "";
1078 static const char *lto_wrapper_spec
= "";
1079 static const char *lto_gcc_spec
= "";
1080 static const char *post_link_spec
= POST_LINK_SPEC
;
1081 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
1082 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
1083 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
1084 static const char *sysroot_spec
= SYSROOT_SPEC
;
1085 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
1086 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
1087 static const char *self_spec
= "";
1089 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
1090 There should be no need to override these in target dependent files,
1091 but we need to copy them to the specs file so that newer versions
1092 of the GCC driver can correctly drive older tool chains with the
1093 appropriate -B options. */
1095 /* When cpplib handles traditional preprocessing, get rid of this, and
1096 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
1097 that we default the front end language better. */
1098 static const char *trad_capable_cpp
=
1099 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
1101 /* We don't wrap .d files in %W{} since a missing .d file, and
1102 therefore no dependency entry, confuses make into thinking a .o
1103 file that happens to exist is up-to-date. */
1104 static const char *cpp_unique_options
=
1105 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
1106 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
1107 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
1108 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
1109 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
1110 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
1111 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1112 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
1115 /* This contains cpp options which are common with cc1_options and are passed
1116 only when preprocessing only to avoid duplication. We pass the cc1 spec
1117 options to the preprocessor so that it the cc1 spec may manipulate
1118 options used to set target flags. Those special target flags settings may
1119 in turn cause preprocessor symbols to be defined specially. */
1120 static const char *cpp_options
=
1121 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
1122 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
1123 %{undef} %{save-temps*:-fpch-preprocess}";
1125 /* This contains cpp options which are not passed when the preprocessor
1126 output will be used by another program. */
1127 static const char *cpp_debug_options
= "%{d*}";
1129 /* NB: This is shared amongst all front-ends, except for Ada. */
1130 static const char *cc1_options
=
1131 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
1132 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1133 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
1134 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
1135 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
1136 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
1137 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
1138 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
1139 %{-target-help:--target-help}\
1140 %{-version:--version}\
1141 %{-help=*:--help=%*}\
1142 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
1143 %{fsyntax-only:-o %j} %{-param*}\
1144 %{coverage:-fprofile-arcs -ftest-coverage}\
1145 %{fprofile-arcs|fprofile-generate*|coverage:\
1146 %{!fprofile-update=single:\
1147 %{pthread:-fprofile-update=prefer-atomic}}}";
1149 static const char *asm_options
=
1150 "%{-target-help:%:print-asm-header()} "
1152 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
1153 to the assembler equivalents. */
1154 "%{v} %{w:-W} %{I*} "
1156 ASM_COMPRESS_DEBUG_SPEC
1157 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
1159 static const char *invoke_as
=
1160 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1162 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1163 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
1167 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1168 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
1172 /* Some compilers have limits on line lengths, and the multilib_select
1173 and/or multilib_matches strings can be very long, so we build them at
1175 static struct obstack multilib_obstack
;
1176 static const char *multilib_select
;
1177 static const char *multilib_matches
;
1178 static const char *multilib_defaults
;
1179 static const char *multilib_exclusions
;
1180 static const char *multilib_reuse
;
1182 /* Check whether a particular argument is a default argument. */
1184 #ifndef MULTILIB_DEFAULTS
1185 #define MULTILIB_DEFAULTS { "" }
1188 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
1190 #ifndef DRIVER_SELF_SPECS
1191 #define DRIVER_SELF_SPECS ""
1194 /* Linking to libgomp implies pthreads. This is particularly important
1195 for targets that use different start files and suchlike. */
1196 #ifndef GOMP_SELF_SPECS
1197 #define GOMP_SELF_SPECS \
1198 "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \
1202 /* Likewise for -fgnu-tm. */
1203 #ifndef GTM_SELF_SPECS
1204 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1207 /* Likewise for -fcilkplus. */
1208 #ifndef CILK_SELF_SPECS
1209 #define CILK_SELF_SPECS "%{fcilkplus: -pthread}"
1212 static const char *const driver_self_specs
[] = {
1213 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1214 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
,
1218 #ifndef OPTION_DEFAULT_SPECS
1219 #define OPTION_DEFAULT_SPECS { "", "" }
1228 static const struct default_spec
1229 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1233 struct user_specs
*next
;
1234 const char *filename
;
1237 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1240 /* Record the mapping from file suffixes for compilation specs. */
1244 const char *suffix
; /* Use this compiler for input files
1245 whose names end in this suffix. */
1247 const char *spec
; /* To use this compiler, run this spec. */
1249 const char *cpp_spec
; /* If non-NULL, substitute this spec
1250 for `%C', rather than the usual
1252 const int combinable
; /* If nonzero, compiler can deal with
1253 multiple source files at once (IMA). */
1254 const int needs_preprocessing
; /* If nonzero, source files need to
1255 be run through a preprocessor. */
1258 /* Pointer to a vector of `struct compiler' that gives the spec for
1259 compiling a file, based on its suffix.
1260 A file that does not end in any of these suffixes will be passed
1261 unchanged to the loader and nothing else will be done to it.
1263 An entry containing two 0s is used to terminate the vector.
1265 If multiple entries match a file, the last matching one is used. */
1267 static struct compiler
*compilers
;
1269 /* Number of entries in `compilers', not counting the null terminator. */
1271 static int n_compilers
;
1273 /* The default list of file name suffixes and their compilation specs. */
1275 static const struct compiler default_compilers
[] =
1277 /* Add lists of suffixes of known languages here. If those languages
1278 were not present when we built the driver, we will hit these copies
1279 and be given a more meaningful error than "file not used since
1280 linking is not done". */
1281 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1282 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1283 {".mii", "#Objective-C++", 0, 0, 0},
1284 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1285 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1286 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1287 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1288 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1289 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1290 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1291 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1292 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1293 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1294 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1295 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1296 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1297 {".r", "#Ratfor", 0, 0, 0},
1298 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1299 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1300 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1301 {".go", "#Go", 0, 1, 0},
1302 /* Next come the entries for C. */
1303 {".c", "@c", 0, 0, 1},
1305 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1306 external preprocessor if -save-temps is given. */
1307 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1310 %eGNU C no longer supports -traditional without -E}\
1311 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1312 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1313 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1315 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1316 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1317 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1319 "%{!E:%e-E or -x required when input is from standard input}\
1320 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1321 {".h", "@c-header", 0, 0, 0},
1323 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1324 external preprocessor if -save-temps is given. */
1325 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1327 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1328 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1329 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1331 %{!fsyntax-only:%{!S:-o %g.s} \
1332 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1333 %W{o*:--output-pch=%*}}%V}}\
1334 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1335 cc1 %(cpp_unique_options) %(cc1_options)\
1336 %{!fsyntax-only:%{!S:-o %g.s} \
1337 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1338 %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
1339 {".i", "@cpp-output", 0, 0, 0},
1341 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1342 {".s", "@assembler", 0, 0, 0},
1344 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1345 {".sx", "@assembler-with-cpp", 0, 0, 0},
1346 {".S", "@assembler-with-cpp", 0, 0, 0},
1347 {"@assembler-with-cpp",
1348 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1349 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1350 %{E|M|MM:%(cpp_debug_options)}\
1351 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1352 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1354 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1355 %{E|M|MM:%(cpp_debug_options)}\
1356 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1357 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1362 /* Mark end of table. */
1366 /* Number of elements in default_compilers, not counting the terminator. */
1368 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1370 typedef char *char_p
; /* For DEF_VEC_P. */
1372 /* A vector of options to give to the linker.
1373 These options are accumulated by %x,
1374 and substituted into the linker command with %X. */
1375 static vec
<char_p
> linker_options
;
1377 /* A vector of options to give to the assembler.
1378 These options are accumulated by -Wa,
1379 and substituted into the assembler command with %Y. */
1380 static vec
<char_p
> assembler_options
;
1382 /* A vector of options to give to the preprocessor.
1383 These options are accumulated by -Wp,
1384 and substituted into the preprocessor command with %Z. */
1385 static vec
<char_p
> preprocessor_options
;
1388 skip_whitespace (char *p
)
1392 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1393 be considered whitespace. */
1394 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1396 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1410 /* Structures to keep track of prefixes to try when looking for files. */
1414 const char *prefix
; /* String to prepend to the path. */
1415 struct prefix_list
*next
; /* Next in linked list. */
1416 int require_machine_suffix
; /* Don't use without machine_suffix. */
1417 /* 2 means try both machine_suffix and just_machine_suffix. */
1418 int priority
; /* Sort key - priority within list. */
1419 int os_multilib
; /* 1 if OS multilib scheme should be used,
1420 0 for GCC multilib scheme. */
1425 struct prefix_list
*plist
; /* List of prefixes to try */
1426 int max_len
; /* Max length of a prefix in PLIST */
1427 const char *name
; /* Name of this list (used in config stuff) */
1430 /* List of prefixes to try when looking for executables. */
1432 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1434 /* List of prefixes to try when looking for startup (crt0) files. */
1436 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1438 /* List of prefixes to try when looking for include files. */
1440 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1442 /* Suffix to attach to directories searched for commands.
1443 This looks like `MACHINE/VERSION/'. */
1445 static const char *machine_suffix
= 0;
1447 /* Suffix to attach to directories searched for commands.
1448 This is just `MACHINE/'. */
1450 static const char *just_machine_suffix
= 0;
1452 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1454 static const char *gcc_exec_prefix
;
1456 /* Adjusted value of standard_libexec_prefix. */
1458 static const char *gcc_libexec_prefix
;
1460 /* Default prefixes to attach to command names. */
1462 #ifndef STANDARD_STARTFILE_PREFIX_1
1463 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1465 #ifndef STANDARD_STARTFILE_PREFIX_2
1466 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1469 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1470 #undef MD_EXEC_PREFIX
1471 #undef MD_STARTFILE_PREFIX
1472 #undef MD_STARTFILE_PREFIX_1
1475 /* If no prefixes defined, use the null string, which will disable them. */
1476 #ifndef MD_EXEC_PREFIX
1477 #define MD_EXEC_PREFIX ""
1479 #ifndef MD_STARTFILE_PREFIX
1480 #define MD_STARTFILE_PREFIX ""
1482 #ifndef MD_STARTFILE_PREFIX_1
1483 #define MD_STARTFILE_PREFIX_1 ""
1486 /* These directories are locations set at configure-time based on the
1487 --prefix option provided to configure. Their initializers are
1488 defined in Makefile.in. These paths are not *directly* used when
1489 gcc_exec_prefix is set because, in that case, we know where the
1490 compiler has been installed, and use paths relative to that
1491 location instead. */
1492 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1493 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1494 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1495 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1497 /* For native compilers, these are well-known paths containing
1498 components that may be provided by the system. For cross
1499 compilers, these paths are not used. */
1500 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1501 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1502 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1503 static const char *const standard_startfile_prefix_1
1504 = STANDARD_STARTFILE_PREFIX_1
;
1505 static const char *const standard_startfile_prefix_2
1506 = STANDARD_STARTFILE_PREFIX_2
;
1508 /* A relative path to be used in finding the location of tools
1509 relative to the driver. */
1510 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1512 /* A prefix to be used when this is an accelerator compiler. */
1513 static const char *const accel_dir_suffix
= ACCEL_DIR_SUFFIX
;
1515 /* Subdirectory to use for locating libraries. Set by
1516 set_multilib_dir based on the compilation options. */
1518 static const char *multilib_dir
;
1520 /* Subdirectory to use for locating libraries in OS conventions. Set by
1521 set_multilib_dir based on the compilation options. */
1523 static const char *multilib_os_dir
;
1525 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1526 set_multilib_dir based on the compilation options. */
1528 static const char *multiarch_dir
;
1530 /* Structure to keep track of the specs that have been defined so far.
1531 These are accessed using %(specname) in a compiler or link
1536 /* The following 2 fields must be first */
1537 /* to allow EXTRA_SPECS to be initialized */
1538 const char *name
; /* name of the spec. */
1539 const char *ptr
; /* available ptr if no static pointer */
1541 /* The following fields are not initialized */
1542 /* by EXTRA_SPECS */
1543 const char **ptr_spec
; /* pointer to the spec itself. */
1544 struct spec_list
*next
; /* Next spec in linked list. */
1545 int name_len
; /* length of the name */
1546 bool user_p
; /* whether string come from file spec. */
1547 bool alloc_p
; /* whether string was allocated */
1548 const char *default_ptr
; /* The default value of *ptr_spec. */
1551 #define INIT_STATIC_SPEC(NAME,PTR) \
1552 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false, \
1555 /* List of statically defined specs. */
1556 static struct spec_list static_specs
[] =
1558 INIT_STATIC_SPEC ("asm", &asm_spec
),
1559 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1560 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1561 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1562 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1563 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1564 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1565 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1566 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1567 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1568 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1569 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1570 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1571 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1572 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1573 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1574 INIT_STATIC_SPEC ("link", &link_spec
),
1575 INIT_STATIC_SPEC ("lib", &lib_spec
),
1576 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1577 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1578 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1579 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1580 INIT_STATIC_SPEC ("version", &compiler_version
),
1581 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1582 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1583 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1584 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1585 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1586 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1587 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1588 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1589 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1590 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1591 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1592 INIT_STATIC_SPEC ("post_link", &post_link_spec
),
1593 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1594 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1595 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1596 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1597 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1598 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1599 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1600 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1601 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1604 #ifdef EXTRA_SPECS /* additional specs needed */
1605 /* Structure to keep track of just the first two args of a spec_list.
1606 That is all that the EXTRA_SPECS macro gives us. */
1609 const char *const name
;
1610 const char *const ptr
;
1613 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1614 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1617 /* List of dynamically allocates specs that have been defined so far. */
1619 static struct spec_list
*specs
= (struct spec_list
*) 0;
1621 /* List of static spec functions. */
1623 static const struct spec_function static_spec_functions
[] =
1625 { "getenv", getenv_spec_function
},
1626 { "if-exists", if_exists_spec_function
},
1627 { "if-exists-else", if_exists_else_spec_function
},
1628 { "sanitize", sanitize_spec_function
},
1629 { "replace-outfile", replace_outfile_spec_function
},
1630 { "remove-outfile", remove_outfile_spec_function
},
1631 { "version-compare", version_compare_spec_function
},
1632 { "include", include_spec_function
},
1633 { "find-file", find_file_spec_function
},
1634 { "find-plugindir", find_plugindir_spec_function
},
1635 { "print-asm-header", print_asm_header_spec_function
},
1636 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1637 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1638 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1639 { "pass-through-libs", pass_through_libs_spec_func
},
1640 { "replace-extension", replace_extension_spec_func
},
1641 { "gt", greater_than_spec_func
},
1642 #ifdef EXTRA_SPEC_FUNCTIONS
1643 EXTRA_SPEC_FUNCTIONS
1648 static int processing_spec_function
;
1650 /* Add appropriate libgcc specs to OBSTACK, taking into account
1651 various permutations of -shared-libgcc, -shared, and such. */
1653 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1655 #ifndef USE_LD_AS_NEEDED
1656 #define USE_LD_AS_NEEDED 0
1660 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1661 const char *static_name
, const char *eh_name
)
1665 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1666 "%{!static:%{!static-libgcc:"
1667 #if USE_LD_AS_NEEDED
1668 "%{!shared-libgcc:",
1669 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1670 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1673 shared_name
, "%{!shared: ", static_name
, "}"
1677 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1678 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1682 "%{shared-libgcc:", shared_name
, "}"
1683 "%{!shared-libgcc:", static_name
, "}"
1686 "%{shared:", shared_name
, "}"
1691 obstack_grow (obstack
, buf
, strlen (buf
));
1694 #endif /* ENABLE_SHARED_LIBGCC */
1696 /* Initialize the specs lookup routines. */
1701 struct spec_list
*next
= (struct spec_list
*) 0;
1702 struct spec_list
*sl
= (struct spec_list
*) 0;
1706 return; /* Already initialized. */
1709 fnotice (stderr
, "Using built-in specs.\n");
1712 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1714 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1716 sl
= &extra_specs
[i
];
1717 sl
->name
= extra_specs_1
[i
].name
;
1718 sl
->ptr
= extra_specs_1
[i
].ptr
;
1720 sl
->name_len
= strlen (sl
->name
);
1721 sl
->ptr_spec
= &sl
->ptr
;
1722 gcc_assert (sl
->ptr_spec
!= NULL
);
1723 sl
->default_ptr
= sl
->ptr
;
1728 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1730 sl
= &static_specs
[i
];
1735 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1736 /* ??? If neither -shared-libgcc nor --static-libgcc was
1737 seen, then we should be making an educated guess. Some proposed
1738 heuristics for ELF include:
1740 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1741 program will be doing dynamic loading, which will likely
1742 need the shared libgcc.
1744 (2) If "-ldl", then it's also a fair bet that we're doing
1747 (3) For each ET_DYN we're linking against (either through -lfoo
1748 or /some/path/foo.so), check to see whether it or one of
1749 its dependencies depends on a shared libgcc.
1753 If the runtime is fixed to look for program headers instead
1754 of calling __register_frame_info at all, for each object,
1755 use the shared libgcc if any EH symbol referenced.
1757 If crtstuff is fixed to not invoke __register_frame_info
1758 automatically, for each object, use the shared libgcc if
1759 any non-empty unwind section found.
1761 Doing any of this probably requires invoking an external program to
1762 do the actual object file scanning. */
1764 const char *p
= libgcc_spec
;
1767 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1768 when given the proper command line arguments. */
1771 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1773 init_gcc_specs (&obstack
,
1775 #ifdef USE_LIBUNWIND_EXCEPTIONS
1781 #ifdef USE_LIBUNWIND_EXCEPTIONS
1782 # ifdef HAVE_LD_STATIC_DYNAMIC
1783 " %{!static:" LD_STATIC_OPTION
"} -lunwind"
1784 " %{!static:" LD_DYNAMIC_OPTION
"}"
1794 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1796 /* Ug. We don't know shared library extensions. Hope that
1797 systems that use this form don't do shared libraries. */
1798 init_gcc_specs (&obstack
,
1802 #ifdef USE_LIBUNWIND_EXCEPTIONS
1811 obstack_1grow (&obstack
, *p
);
1812 in_sep
= (*p
== ' ');
1817 obstack_1grow (&obstack
, '\0');
1818 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1821 #ifdef USE_AS_TRADITIONAL_FORMAT
1822 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1824 static const char tf
[] = "--traditional-format ";
1825 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1826 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1827 asm_spec
= XOBFINISH (&obstack
, const char *);
1831 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1832 defined LINKER_HASH_STYLE
1833 # ifdef LINK_BUILDID_SPEC
1834 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1835 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1837 # ifdef LINK_EH_SPEC
1838 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1839 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1841 # ifdef LINKER_HASH_STYLE
1842 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1845 static const char hash_style
[] = "--hash-style=";
1846 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1847 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1848 obstack_1grow (&obstack
, ' ');
1851 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1852 link_spec
= XOBFINISH (&obstack
, const char *);
1858 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1859 removed; If the spec starts with a + then SPEC is added to the end of the
1863 set_spec (const char *name
, const char *spec
, bool user_p
)
1865 struct spec_list
*sl
;
1866 const char *old_spec
;
1867 int name_len
= strlen (name
);
1870 /* If this is the first call, initialize the statically allocated specs. */
1873 struct spec_list
*next
= (struct spec_list
*) 0;
1874 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1876 sl
= &static_specs
[i
];
1883 /* See if the spec already exists. */
1884 for (sl
= specs
; sl
; sl
= sl
->next
)
1885 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1890 /* Not found - make it. */
1891 sl
= XNEW (struct spec_list
);
1892 sl
->name
= xstrdup (name
);
1893 sl
->name_len
= name_len
;
1894 sl
->ptr_spec
= &sl
->ptr
;
1896 *(sl
->ptr_spec
) = "";
1898 sl
->default_ptr
= NULL
;
1902 old_spec
= *(sl
->ptr_spec
);
1903 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1904 ? concat (old_spec
, spec
+ 1, NULL
)
1909 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1912 /* Free the old spec. */
1913 if (old_spec
&& sl
->alloc_p
)
1914 free (CONST_CAST (char *, old_spec
));
1916 sl
->user_p
= user_p
;
1920 /* Accumulate a command (program name and args), and run it. */
1922 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1924 /* Vector of pointers to arguments in the current line of specifications. */
1926 static vec
<const_char_p
> argbuf
;
1928 /* Were the options -c, -S or -E passed. */
1929 static int have_c
= 0;
1931 /* Was the option -o passed. */
1932 static int have_o
= 0;
1934 /* Was the option -E passed. */
1935 static int have_E
= 0;
1937 /* Pointer to output file name passed in with -o. */
1938 static const char *output_file
= 0;
1940 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1941 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1944 static struct temp_name
{
1945 const char *suffix
; /* suffix associated with the code. */
1946 int length
; /* strlen (suffix). */
1947 int unique
; /* Indicates whether %g or %u/%U was used. */
1948 const char *filename
; /* associated filename. */
1949 int filename_length
; /* strlen (filename). */
1950 struct temp_name
*next
;
1953 /* Number of commands executed so far. */
1955 static int execution_count
;
1957 /* Number of commands that exited with a signal. */
1959 static int signal_count
;
1961 /* Allocate the argument vector. */
1969 /* Clear out the vector of arguments (after a command is executed). */
1974 argbuf
.truncate (0);
1977 /* Add one argument to the vector at the end.
1978 This is done when a space is seen or at the end of the line.
1979 If DELETE_ALWAYS is nonzero, the arg is a filename
1980 and the file should be deleted eventually.
1981 If DELETE_FAILURE is nonzero, the arg is a filename
1982 and the file should be deleted if this compilation fails. */
1985 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1987 argbuf
.safe_push (arg
);
1989 if (delete_always
|| delete_failure
)
1992 /* If the temporary file we should delete is specified as
1993 part of a joined argument extract the filename. */
1995 && (p
= strrchr (arg
, '=')))
1997 record_temp_file (arg
, delete_always
, delete_failure
);
2001 /* Load specs from a file name named FILENAME, replacing occurrences of
2002 various different types of line-endings, \r\n, \n\r and just \r, with
2006 load_specs (const char *filename
)
2010 struct stat statbuf
;
2017 fnotice (stderr
, "Reading specs from %s\n", filename
);
2019 /* Open and stat the file. */
2020 desc
= open (filename
, O_RDONLY
, 0);
2022 pfatal_with_name (filename
);
2023 if (stat (filename
, &statbuf
) < 0)
2024 pfatal_with_name (filename
);
2026 /* Read contents of file into BUFFER. */
2027 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2028 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2030 pfatal_with_name (filename
);
2031 buffer
[readlen
] = 0;
2034 specs
= XNEWVEC (char, readlen
+ 1);
2036 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2042 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2044 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2058 /* Read compilation specs from a file named FILENAME,
2059 replacing the default ones.
2061 A suffix which starts with `*' is a definition for
2062 one of the machine-specific sub-specs. The "suffix" should be
2063 *asm, *cc1, *cpp, *link, *startfile, etc.
2064 The corresponding spec is stored in asm_spec, etc.,
2065 rather than in the `compilers' vector.
2067 Anything invalid in the file is a fatal error. */
2070 read_specs (const char *filename
, bool main_p
, bool user_p
)
2075 buffer
= load_specs (filename
);
2077 /* Scan BUFFER for specs, putting them in the vector. */
2083 char *in
, *out
, *p1
, *p2
, *p3
;
2085 /* Advance P in BUFFER to the next nonblank nocomment line. */
2086 p
= skip_whitespace (p
);
2090 /* Is this a special command that starts with '%'? */
2091 /* Don't allow this for the main specs file, since it would
2092 encourage people to overwrite it. */
2093 if (*p
== '%' && !main_p
)
2096 while (*p
&& *p
!= '\n')
2102 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2103 && (p1
[sizeof "%include" - 1] == ' '
2104 || p1
[sizeof "%include" - 1] == '\t'))
2108 p1
+= sizeof ("%include");
2109 while (*p1
== ' ' || *p1
== '\t')
2112 if (*p1
++ != '<' || p
[-2] != '>')
2113 fatal_error (input_location
,
2114 "specs %%include syntax malformed after "
2116 (long) (p1
- buffer
+ 1));
2119 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2120 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
2123 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2124 && (p1
[sizeof "%include_noerr" - 1] == ' '
2125 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2129 p1
+= sizeof "%include_noerr";
2130 while (*p1
== ' ' || *p1
== '\t')
2133 if (*p1
++ != '<' || p
[-2] != '>')
2134 fatal_error (input_location
,
2135 "specs %%include syntax malformed after "
2137 (long) (p1
- buffer
+ 1));
2140 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2142 read_specs (new_filename
, false, user_p
);
2143 else if (verbose_flag
)
2144 fnotice (stderr
, "could not find specs file %s\n", p1
);
2147 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2148 && (p1
[sizeof "%rename" - 1] == ' '
2149 || p1
[sizeof "%rename" - 1] == '\t'))
2152 struct spec_list
*sl
;
2153 struct spec_list
*newsl
;
2155 /* Get original name. */
2156 p1
+= sizeof "%rename";
2157 while (*p1
== ' ' || *p1
== '\t')
2160 if (! ISALPHA ((unsigned char) *p1
))
2161 fatal_error (input_location
,
2162 "specs %%rename syntax malformed after "
2164 (long) (p1
- buffer
));
2167 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2170 if (*p2
!= ' ' && *p2
!= '\t')
2171 fatal_error (input_location
,
2172 "specs %%rename syntax malformed after "
2174 (long) (p2
- buffer
));
2178 while (*p2
== ' ' || *p2
== '\t')
2181 if (! ISALPHA ((unsigned char) *p2
))
2182 fatal_error (input_location
,
2183 "specs %%rename syntax malformed after "
2185 (long) (p2
- buffer
));
2187 /* Get new spec name. */
2189 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2193 fatal_error (input_location
,
2194 "specs %%rename syntax malformed after "
2196 (long) (p3
- buffer
));
2199 for (sl
= specs
; sl
; sl
= sl
->next
)
2200 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2204 fatal_error (input_location
,
2205 "specs %s spec was not found to be renamed", p1
);
2207 if (strcmp (p1
, p2
) == 0)
2210 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2211 if (strcmp (newsl
->name
, p2
) == 0)
2212 fatal_error (input_location
,
2213 "%s: attempt to rename spec %qs to "
2214 "already defined spec %qs",
2219 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
2221 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2225 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2227 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2229 *(sl
->ptr_spec
) = "";
2234 fatal_error (input_location
,
2235 "specs unknown %% command after %ld characters",
2236 (long) (p1
- buffer
));
2239 /* Find the colon that should end the suffix. */
2241 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2244 /* The colon shouldn't be missing. */
2246 fatal_error (input_location
,
2247 "specs file malformed after %ld characters",
2248 (long) (p1
- buffer
));
2250 /* Skip back over trailing whitespace. */
2252 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2255 /* Copy the suffix to a string. */
2256 suffix
= save_string (p
, p2
- p
);
2257 /* Find the next line. */
2258 p
= skip_whitespace (p1
+ 1);
2260 fatal_error (input_location
,
2261 "specs file malformed after %ld characters",
2262 (long) (p
- buffer
));
2265 /* Find next blank line or end of string. */
2266 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2269 /* Specs end at the blank line and do not include the newline. */
2270 spec
= save_string (p
, p1
- p
);
2273 /* Delete backslash-newline sequences from the spec. */
2278 if (in
[0] == '\\' && in
[1] == '\n')
2280 else if (in
[0] == '#')
2281 while (*in
&& *in
!= '\n')
2289 if (suffix
[0] == '*')
2291 if (! strcmp (suffix
, "*link_command"))
2292 link_command_spec
= spec
;
2295 set_spec (suffix
+ 1, spec
, user_p
);
2301 /* Add this pair to the vector. */
2303 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2305 compilers
[n_compilers
].suffix
= suffix
;
2306 compilers
[n_compilers
].spec
= spec
;
2308 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2312 link_command_spec
= spec
;
2315 if (link_command_spec
== 0)
2316 fatal_error (input_location
, "spec file has no spec for linking");
2318 XDELETEVEC (buffer
);
2321 /* Record the names of temporary files we tell compilers to write,
2322 and delete them at the end of the run. */
2324 /* This is the common prefix we use to make temp file names.
2325 It is chosen once for each run of this program.
2326 It is substituted into a spec by %g or %j.
2327 Thus, all temp file names contain this prefix.
2328 In practice, all temp file names start with this prefix.
2330 This prefix comes from the envvar TMPDIR if it is defined;
2331 otherwise, from the P_tmpdir macro if that is defined;
2332 otherwise, in /usr/tmp or /tmp;
2333 or finally the current directory if all else fails. */
2335 static const char *temp_filename
;
2337 /* Length of the prefix. */
2339 static int temp_filename_length
;
2341 /* Define the list of temporary files to delete. */
2346 struct temp_file
*next
;
2349 /* Queue of files to delete on success or failure of compilation. */
2350 static struct temp_file
*always_delete_queue
;
2351 /* Queue of files to delete on failure of compilation. */
2352 static struct temp_file
*failure_delete_queue
;
2354 /* Record FILENAME as a file to be deleted automatically.
2355 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2356 otherwise delete it in any case.
2357 FAIL_DELETE nonzero means delete it if a compilation step fails;
2358 otherwise delete it in any case. */
2361 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2363 char *const name
= xstrdup (filename
);
2367 struct temp_file
*temp
;
2368 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2369 if (! filename_cmp (name
, temp
->name
))
2375 temp
= XNEW (struct temp_file
);
2376 temp
->next
= always_delete_queue
;
2378 always_delete_queue
= temp
;
2385 struct temp_file
*temp
;
2386 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2387 if (! filename_cmp (name
, temp
->name
))
2393 temp
= XNEW (struct temp_file
);
2394 temp
->next
= failure_delete_queue
;
2396 failure_delete_queue
= temp
;
2402 /* Delete all the temporary files whose names we previously recorded. */
2404 #ifndef DELETE_IF_ORDINARY
2405 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2408 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2409 if (unlink (NAME) < 0) \
2411 perror_with_name (NAME); \
2416 delete_if_ordinary (const char *name
)
2422 printf ("Delete %s? (y or n) ", name
);
2426 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2429 if (i
== 'y' || i
== 'Y')
2431 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2435 delete_temp_files (void)
2437 struct temp_file
*temp
;
2439 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2440 delete_if_ordinary (temp
->name
);
2441 always_delete_queue
= 0;
2444 /* Delete all the files to be deleted on error. */
2447 delete_failure_queue (void)
2449 struct temp_file
*temp
;
2451 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2452 delete_if_ordinary (temp
->name
);
2456 clear_failure_queue (void)
2458 failure_delete_queue
= 0;
2461 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2463 If DO_MULTI is true iterate over the paths twice, first with multilib
2464 suffix then without, otherwise iterate over the paths once without
2465 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2466 to avoid visiting the same path twice, but we could do better. For
2467 instance, /usr/lib/../lib is considered different from /usr/lib.
2468 At least EXTRA_SPACE chars past the end of the path passed to
2469 CALLBACK are available for use by the callback.
2470 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2472 Returns the value returned by CALLBACK. */
2475 for_each_path (const struct path_prefix
*paths
,
2478 void *(*callback
) (char *, void *),
2479 void *callback_info
)
2481 struct prefix_list
*pl
;
2482 const char *multi_dir
= NULL
;
2483 const char *multi_os_dir
= NULL
;
2484 const char *multiarch_suffix
= NULL
;
2485 const char *multi_suffix
;
2486 const char *just_multi_suffix
;
2489 bool skip_multi_dir
= false;
2490 bool skip_multi_os_dir
= false;
2492 multi_suffix
= machine_suffix
;
2493 just_multi_suffix
= just_machine_suffix
;
2494 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2496 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2497 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2498 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2500 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2501 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2503 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2507 size_t multi_dir_len
= 0;
2508 size_t multi_os_dir_len
= 0;
2509 size_t multiarch_len
= 0;
2511 size_t just_suffix_len
;
2515 multi_dir_len
= strlen (multi_dir
);
2517 multi_os_dir_len
= strlen (multi_os_dir
);
2518 if (multiarch_suffix
)
2519 multiarch_len
= strlen (multiarch_suffix
);
2520 suffix_len
= strlen (multi_suffix
);
2521 just_suffix_len
= strlen (just_multi_suffix
);
2525 len
= paths
->max_len
+ extra_space
+ 1;
2526 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2527 path
= XNEWVEC (char, len
);
2530 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2532 len
= strlen (pl
->prefix
);
2533 memcpy (path
, pl
->prefix
, len
);
2535 /* Look first in MACHINE/VERSION subdirectory. */
2536 if (!skip_multi_dir
)
2538 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2539 ret
= callback (path
, callback_info
);
2544 /* Some paths are tried with just the machine (ie. target)
2545 subdir. This is used for finding as, ld, etc. */
2547 && pl
->require_machine_suffix
== 2)
2549 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2550 ret
= callback (path
, callback_info
);
2555 /* Now try the multiarch path. */
2557 && !pl
->require_machine_suffix
&& multiarch_dir
)
2559 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2560 ret
= callback (path
, callback_info
);
2565 /* Now try the base path. */
2566 if (!pl
->require_machine_suffix
2567 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2569 const char *this_multi
;
2570 size_t this_multi_len
;
2572 if (pl
->os_multilib
)
2574 this_multi
= multi_os_dir
;
2575 this_multi_len
= multi_os_dir_len
;
2579 this_multi
= multi_dir
;
2580 this_multi_len
= multi_dir_len
;
2584 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2588 ret
= callback (path
, callback_info
);
2596 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2599 /* Run through the paths again, this time without multilibs.
2600 Don't repeat any we have already seen. */
2603 free (CONST_CAST (char *, multi_dir
));
2605 free (CONST_CAST (char *, multi_suffix
));
2606 multi_suffix
= machine_suffix
;
2607 free (CONST_CAST (char *, just_multi_suffix
));
2608 just_multi_suffix
= just_machine_suffix
;
2611 skip_multi_dir
= true;
2614 free (CONST_CAST (char *, multi_os_dir
));
2615 multi_os_dir
= NULL
;
2618 skip_multi_os_dir
= true;
2623 free (CONST_CAST (char *, multi_dir
));
2624 free (CONST_CAST (char *, multi_suffix
));
2625 free (CONST_CAST (char *, just_multi_suffix
));
2628 free (CONST_CAST (char *, multi_os_dir
));
2634 /* Callback for build_search_list. Adds path to obstack being built. */
2636 struct add_to_obstack_info
{
2643 add_to_obstack (char *path
, void *data
)
2645 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2647 if (info
->check_dir
&& !is_directory (path
, false))
2650 if (!info
->first_time
)
2651 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2653 obstack_grow (info
->ob
, path
, strlen (path
));
2655 info
->first_time
= false;
2659 /* Add or change the value of an environment variable, outputting the
2660 change to standard error if in verbose mode. */
2662 xputenv (const char *string
)
2667 /* Build a list of search directories from PATHS.
2668 PREFIX is a string to prepend to the list.
2669 If CHECK_DIR_P is true we ensure the directory exists.
2670 If DO_MULTI is true, multilib paths are output first, then
2672 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2673 It is also used by the --print-search-dirs flag. */
2676 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2677 bool check_dir
, bool do_multi
)
2679 struct add_to_obstack_info info
;
2681 info
.ob
= &collect_obstack
;
2682 info
.check_dir
= check_dir
;
2683 info
.first_time
= true;
2685 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2686 obstack_1grow (&collect_obstack
, '=');
2688 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2690 obstack_1grow (&collect_obstack
, '\0');
2691 return XOBFINISH (&collect_obstack
, char *);
2694 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2698 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2701 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2704 /* Check whether NAME can be accessed in MODE. This is like access,
2705 except that it never considers directories to be executable. */
2708 access_check (const char *name
, int mode
)
2714 if (stat (name
, &st
) < 0
2715 || S_ISDIR (st
.st_mode
))
2719 return access (name
, mode
);
2722 /* Callback for find_a_file. Appends the file name to the directory
2723 path. If the resulting file exists in the right mode, return the
2724 full pathname to the file. */
2726 struct file_at_path_info
{
2735 file_at_path (char *path
, void *data
)
2737 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2738 size_t len
= strlen (path
);
2740 memcpy (path
+ len
, info
->name
, info
->name_len
);
2741 len
+= info
->name_len
;
2743 /* Some systems have a suffix for executable files.
2744 So try appending that first. */
2745 if (info
->suffix_len
)
2747 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2748 if (access_check (path
, info
->mode
) == 0)
2753 if (access_check (path
, info
->mode
) == 0)
2759 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2760 access to check permissions. If DO_MULTI is true, search multilib
2761 paths then non-multilib paths, otherwise do not search multilib paths.
2762 Return 0 if not found, otherwise return its name, allocated with malloc. */
2765 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2768 struct file_at_path_info info
;
2770 #ifdef DEFAULT_ASSEMBLER
2771 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2772 return xstrdup (DEFAULT_ASSEMBLER
);
2775 #ifdef DEFAULT_LINKER
2776 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2777 return xstrdup (DEFAULT_LINKER
);
2780 /* Determine the filename to execute (special case for absolute paths). */
2782 if (IS_ABSOLUTE_PATH (name
))
2784 if (access (name
, mode
) == 0)
2785 return xstrdup (name
);
2791 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2792 info
.name_len
= strlen (info
.name
);
2793 info
.suffix_len
= strlen (info
.suffix
);
2796 return (char*) for_each_path (pprefix
, do_multi
,
2797 info
.name_len
+ info
.suffix_len
,
2798 file_at_path
, &info
);
2801 /* Ranking of prefixes in the sort list. -B prefixes are put before
2804 enum path_prefix_priority
2806 PREFIX_PRIORITY_B_OPT
,
2807 PREFIX_PRIORITY_LAST
2810 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2811 order according to PRIORITY. Within each PRIORITY, new entries are
2814 If WARN is nonzero, we will warn if no file is found
2815 through this prefix. WARN should point to an int
2816 which will be set to 1 if this entry is used.
2818 COMPONENT is the value to be passed to update_path.
2820 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2821 the complete value of machine_suffix.
2822 2 means try both machine_suffix and just_machine_suffix. */
2825 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2826 const char *component
, /* enum prefix_priority */ int priority
,
2827 int require_machine_suffix
, int os_multilib
)
2829 struct prefix_list
*pl
, **prev
;
2832 for (prev
= &pprefix
->plist
;
2833 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2834 prev
= &(*prev
)->next
)
2837 /* Keep track of the longest prefix. */
2839 prefix
= update_path (prefix
, component
);
2840 len
= strlen (prefix
);
2841 if (len
> pprefix
->max_len
)
2842 pprefix
->max_len
= len
;
2844 pl
= XNEW (struct prefix_list
);
2845 pl
->prefix
= prefix
;
2846 pl
->require_machine_suffix
= require_machine_suffix
;
2847 pl
->priority
= priority
;
2848 pl
->os_multilib
= os_multilib
;
2850 /* Insert after PREV. */
2855 /* Same as add_prefix, but prepending target_system_root to prefix. */
2856 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2858 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2859 const char *component
,
2860 /* enum prefix_priority */ int priority
,
2861 int require_machine_suffix
, int os_multilib
)
2863 if (!IS_ABSOLUTE_PATH (prefix
))
2864 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
2866 if (target_system_root
)
2868 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2869 size_t sysroot_len
= strlen (target_system_root
);
2872 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2873 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2875 if (target_sysroot_suffix
)
2876 prefix
= concat (sysroot_no_trailing_dir_separator
,
2877 target_sysroot_suffix
, prefix
, NULL
);
2879 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2881 free (sysroot_no_trailing_dir_separator
);
2883 /* We have to override this because GCC's notion of sysroot
2884 moves along with GCC. */
2888 add_prefix (pprefix
, prefix
, component
, priority
,
2889 require_machine_suffix
, os_multilib
);
2892 /* Execute the command specified by the arguments on the current line of spec.
2893 When using pipes, this includes several piped-together commands
2894 with `|' between them.
2896 Return 0 if successful, -1 if failed. */
2902 int n_commands
; /* # of command. */
2904 struct pex_obj
*pex
;
2907 const char *prog
; /* program name. */
2908 const char **argv
; /* vector of args. */
2912 struct command
*commands
; /* each command buffer with above info. */
2914 gcc_assert (!processing_spec_function
);
2918 string
= find_a_file (&exec_prefixes
,
2919 argbuf
[0], X_OK
, false);
2922 insert_wrapper (wrapper_string
);
2925 /* Count # of piped commands. */
2926 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2927 if (strcmp (arg
, "|") == 0)
2930 /* Get storage for each command. */
2931 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2933 /* Split argbuf into its separate piped processes,
2934 and record info about each one.
2935 Also search for the programs that are to be run. */
2937 argbuf
.safe_push (0);
2939 commands
[0].prog
= argbuf
[0]; /* first command. */
2940 commands
[0].argv
= argbuf
.address ();
2942 if (!wrapper_string
)
2944 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2945 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2948 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2949 if (arg
&& strcmp (arg
, "|") == 0)
2950 { /* each command. */
2951 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2952 fatal_error (input_location
, "-pipe not supported");
2954 argbuf
[i
] = 0; /* Termination of
2956 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2957 commands
[n_commands
].argv
2958 = &(argbuf
.address ())[i
+ 1];
2959 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2962 commands
[n_commands
].argv
[0] = string
;
2966 /* If -v, print what we are about to do, and maybe query. */
2970 /* For help listings, put a blank line between sub-processes. */
2971 if (print_help_list
)
2972 fputc ('\n', stderr
);
2974 /* Print each piped command as a separate line. */
2975 for (i
= 0; i
< n_commands
; i
++)
2977 const char *const *j
;
2979 if (verbose_only_flag
)
2981 for (j
= commands
[i
].argv
; *j
; j
++)
2984 for (p
= *j
; *p
; ++p
)
2985 if (!ISALNUM ((unsigned char) *p
)
2986 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2990 fprintf (stderr
, " \"");
2991 for (p
= *j
; *p
; ++p
)
2993 if (*p
== '"' || *p
== '\\' || *p
== '$')
2994 fputc ('\\', stderr
);
2997 fputc ('"', stderr
);
2999 /* If it's empty, print "". */
3001 fprintf (stderr
, " \"\"");
3003 fprintf (stderr
, " %s", *j
);
3007 for (j
= commands
[i
].argv
; *j
; j
++)
3008 /* If it's empty, print "". */
3010 fprintf (stderr
, " \"\"");
3012 fprintf (stderr
, " %s", *j
);
3014 /* Print a pipe symbol after all but the last command. */
3015 if (i
+ 1 != n_commands
)
3016 fprintf (stderr
, " |");
3017 fprintf (stderr
, "\n");
3020 if (verbose_only_flag
!= 0)
3022 /* verbose_only_flag should act as if the spec was
3023 executed, so increment execution_count before
3024 returning. This prevents spurious warnings about
3025 unused linker input files, etc. */
3030 fnotice (stderr
, "\nGo ahead? (y or n) ");
3034 while (getchar () != '\n')
3037 if (i
!= 'y' && i
!= 'Y')
3042 #ifdef ENABLE_VALGRIND_CHECKING
3043 /* Run the each command through valgrind. To simplify prepending the
3044 path to valgrind and the option "-q" (for quiet operation unless
3045 something triggers), we allocate a separate argv array. */
3047 for (i
= 0; i
< n_commands
; i
++)
3053 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3056 argv
= XALLOCAVEC (const char *, argc
+ 3);
3058 argv
[0] = VALGRIND_PATH
;
3060 for (j
= 2; j
< argc
+ 2; j
++)
3061 argv
[j
] = commands
[i
].argv
[j
- 2];
3064 commands
[i
].argv
= argv
;
3065 commands
[i
].prog
= argv
[0];
3069 /* Run each piped subprocess. */
3071 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3072 ? PEX_RECORD_TIMES
: 0),
3073 progname
, temp_filename
);
3075 fatal_error (input_location
, "pex_init failed: %m");
3077 for (i
= 0; i
< n_commands
; i
++)
3081 const char *string
= commands
[i
].argv
[0];
3083 errmsg
= pex_run (pex
,
3084 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3085 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3086 string
, CONST_CAST (char **, commands
[i
].argv
),
3091 fatal_error (input_location
, errmsg
);
3095 pfatal_with_name (errmsg
);
3099 if (i
&& string
!= commands
[i
].prog
)
3100 free (CONST_CAST (char *, string
));
3105 /* Wait for all the subprocesses to finish. */
3109 struct pex_time
*times
= NULL
;
3112 statuses
= (int *) alloca (n_commands
* sizeof (int));
3113 if (!pex_get_status (pex
, n_commands
, statuses
))
3114 fatal_error (input_location
, "failed to get exit status: %m");
3116 if (report_times
|| report_times_to_file
)
3118 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3119 if (!pex_get_times (pex
, n_commands
, times
))
3120 fatal_error (input_location
, "failed to get process times: %m");
3125 for (i
= 0; i
< n_commands
; ++i
)
3127 int status
= statuses
[i
];
3129 if (WIFSIGNALED (status
))
3132 /* SIGPIPE is a special case. It happens in -pipe mode
3133 when the compiler dies before the preprocessor is done,
3134 or the assembler dies before the compiler is done.
3135 There's generally been an error already, and this is
3136 just fallout. So don't generate another error unless
3137 we would otherwise have succeeded. */
3138 if (WTERMSIG (status
) == SIGPIPE
3139 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3146 internal_error_no_backtrace ("%s (program %s)",
3147 strsignal (WTERMSIG (status
)),
3150 else if (WIFEXITED (status
)
3151 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3153 /* For ICEs in cc1, cc1obj, cc1plus see if it is
3154 reproducible or not. */
3157 && WEXITSTATUS (status
) == ICE_EXIT_CODE
3159 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
3160 && ! strncmp (p
+ 1, "cc1", 3))
3161 try_generate_repro (commands
[0].argv
);
3162 if (WEXITSTATUS (status
) > greatest_status
)
3163 greatest_status
= WEXITSTATUS (status
);
3167 if (report_times
|| report_times_to_file
)
3169 struct pex_time
*pt
= ×
[i
];
3172 ut
= ((double) pt
->user_seconds
3173 + (double) pt
->user_microseconds
/ 1.0e6
);
3174 st
= ((double) pt
->system_seconds
3175 + (double) pt
->system_microseconds
/ 1.0e6
);
3180 fnotice (stderr
, "# %s %.2f %.2f\n",
3181 commands
[i
].prog
, ut
, st
);
3183 if (report_times_to_file
)
3186 const char *const *j
;
3188 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3190 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3193 for (p
= *j
; *p
; ++p
)
3194 if (*p
== '"' || *p
== '\\' || *p
== '$'
3200 fprintf (report_times_to_file
, " \"");
3201 for (p
= *j
; *p
; ++p
)
3203 if (*p
== '"' || *p
== '\\' || *p
== '$')
3204 fputc ('\\', report_times_to_file
);
3205 fputc (*p
, report_times_to_file
);
3207 fputc ('"', report_times_to_file
);
3210 fprintf (report_times_to_file
, " %s", *j
);
3213 fputc ('\n', report_times_to_file
);
3219 if (commands
[0].argv
[0] != commands
[0].prog
)
3220 free (CONST_CAST (char *, commands
[0].argv
[0]));
3226 /* Find all the switches given to us
3227 and make a vector describing them.
3228 The elements of the vector are strings, one per switch given.
3229 If a switch uses following arguments, then the `part1' field
3230 is the switch itself and the `args' field
3231 is a null-terminated vector containing the following arguments.
3232 Bits in the `live_cond' field are:
3233 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3234 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3235 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3236 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored.
3237 SWITCH_KEEP_FOR_GCC to indicate that this switch, otherwise ignored,
3238 should be included in COLLECT_GCC_OPTIONS.
3239 in all do_spec calls afterwards. Used for %<S from self specs.
3240 The `known' field describes whether this is an internal switch.
3241 The `validated' field describes whether any spec has looked at this switch;
3242 if it remains false at the end of the run, the switch must be meaningless.
3243 The `ordering' field is used to temporarily mark switches that have to be
3244 kept in a specific order. */
3246 #define SWITCH_LIVE (1 << 0)
3247 #define SWITCH_FALSE (1 << 1)
3248 #define SWITCH_IGNORE (1 << 2)
3249 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
3250 #define SWITCH_KEEP_FOR_GCC (1 << 4)
3256 unsigned int live_cond
;
3262 static struct switchstr
*switches
;
3264 static int n_switches
;
3266 static int n_switches_alloc
;
3268 /* Set to zero if -fcompare-debug is disabled, positive if it's
3269 enabled and we're running the first compilation, negative if it's
3270 enabled and we're running the second compilation. For most of the
3271 time, it's in the range -1..1, but it can be temporarily set to 2
3272 or 3 to indicate that the -fcompare-debug flags didn't come from
3273 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3274 variable, until a synthesized -fcompare-debug flag is added to the
3278 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3279 int compare_debug_second
;
3281 /* Set to the flags that should be passed to the second compilation in
3282 a -fcompare-debug compilation. */
3283 const char *compare_debug_opt
;
3285 static struct switchstr
*switches_debug_check
[2];
3287 static int n_switches_debug_check
[2];
3289 static int n_switches_alloc_debug_check
[2];
3291 static char *debug_check_temp_file
[2];
3293 /* Language is one of three things:
3295 1) The name of a real programming language.
3296 2) NULL, indicating that no one has figured out
3298 3) '*', indicating that the file should be passed
3303 const char *language
;
3304 struct compiler
*incompiler
;
3309 /* Also a vector of input files specified. */
3311 static struct infile
*infiles
;
3315 static int n_infiles_alloc
;
3317 /* True if undefined environment variables encountered during spec processing
3318 are ok to ignore, typically when we're running for --help or --version. */
3320 static bool spec_undefvar_allowed
;
3322 /* True if multiple input files are being compiled to a single
3325 static bool combine_inputs
;
3327 /* This counts the number of libraries added by lang_specific_driver, so that
3328 we can tell if there were any user supplied any files or libraries. */
3330 static int added_libraries
;
3332 /* And a vector of corresponding output files is made up later. */
3334 const char **outfiles
;
3336 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3338 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3339 is true if we should look for an executable suffix. DO_OBJ
3340 is true if we should look for an object suffix. */
3343 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3344 int do_obj ATTRIBUTE_UNUSED
)
3346 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3354 len
= strlen (name
);
3356 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3357 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3358 if (do_obj
&& len
> 2
3359 && name
[len
- 2] == '.'
3360 && name
[len
- 1] == 'o')
3362 obstack_grow (&obstack
, name
, len
- 2);
3363 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3364 name
= XOBFINISH (&obstack
, const char *);
3368 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3369 /* If there is no filetype, make it the executable suffix (which includes
3370 the "."). But don't get confused if we have just "-o". */
3371 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3374 for (i
= len
- 1; i
>= 0; i
--)
3375 if (IS_DIR_SEPARATOR (name
[i
]))
3378 for (i
++; i
< len
; i
++)
3382 obstack_grow (&obstack
, name
, len
);
3383 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3384 strlen (TARGET_EXECUTABLE_SUFFIX
));
3385 name
= XOBFINISH (&obstack
, const char *);
3392 /* Display the command line switches accepted by gcc. */
3396 printf (_("Usage: %s [options] file...\n"), progname
);
3397 fputs (_("Options:\n"), stdout
);
3399 fputs (_(" -pass-exit-codes Exit with highest error code from a phase.\n"), stdout
);
3400 fputs (_(" --help Display this information.\n"), stdout
);
3401 fputs (_(" --target-help Display target specific command line options.\n"), stdout
);
3402 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...].\n"), stdout
);
3403 fputs (_(" Display specific types of command line options.\n"), stdout
);
3405 fputs (_(" (Use '-v --help' to display command line options of sub-processes).\n"), stdout
);
3406 fputs (_(" --version Display compiler version information.\n"), stdout
);
3407 fputs (_(" -dumpspecs Display all of the built in spec strings.\n"), stdout
);
3408 fputs (_(" -dumpversion Display the version of the compiler.\n"), stdout
);
3409 fputs (_(" -dumpmachine Display the compiler's target processor.\n"), stdout
);
3410 fputs (_(" -print-search-dirs Display the directories in the compiler's search path.\n"), stdout
);
3411 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library.\n"), stdout
);
3412 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>.\n"), stdout
);
3413 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>.\n"), stdout
);
3415 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3416 a component in the library path.\n"), stdout
);
3417 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc.\n"), stdout
);
3419 -print-multi-lib Display the mapping between command line options and\n\
3420 multiple library search directories.\n"), stdout
);
3421 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries.\n"), stdout
);
3422 fputs (_(" -print-sysroot Display the target libraries directory.\n"), stdout
);
3423 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers.\n"), stdout
);
3424 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler.\n"), stdout
);
3425 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor.\n"), stdout
);
3426 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker.\n"), stdout
);
3427 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler.\n"), stdout
);
3428 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor.\n"), stdout
);
3429 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker.\n"), stdout
);
3430 fputs (_(" -save-temps Do not delete intermediate files.\n"), stdout
);
3431 fputs (_(" -save-temps=<arg> Do not delete intermediate files.\n"), stdout
);
3433 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3434 prefixes to other gcc components.\n"), stdout
);
3435 fputs (_(" -pipe Use pipes rather than intermediate files.\n"), stdout
);
3436 fputs (_(" -time Time the execution of each subprocess.\n"), stdout
);
3437 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>.\n"), stdout
);
3438 fputs (_(" -std=<standard> Assume that the input sources are for <standard>.\n"), stdout
);
3440 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3441 and libraries.\n"), stdout
);
3442 fputs (_(" -B <directory> Add <directory> to the compiler's search paths.\n"), stdout
);
3443 fputs (_(" -v Display the programs invoked by the compiler.\n"), stdout
);
3444 fputs (_(" -### Like -v but options quoted and commands not executed.\n"), stdout
);
3445 fputs (_(" -E Preprocess only; do not compile, assemble or link.\n"), stdout
);
3446 fputs (_(" -S Compile only; do not assemble or link.\n"), stdout
);
3447 fputs (_(" -c Compile and assemble, but do not link.\n"), stdout
);
3448 fputs (_(" -o <file> Place the output into <file>.\n"), stdout
);
3449 fputs (_(" -pie Create a position independent executable.\n"), stdout
);
3450 fputs (_(" -shared Create a shared library.\n"), stdout
);
3452 -x <language> Specify the language of the following input files.\n\
3453 Permissible languages include: c c++ assembler none\n\
3454 'none' means revert to the default behavior of\n\
3455 guessing the language based on the file's extension.\n\
3459 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3460 passed on to the various sub-processes invoked by %s. In order to pass\n\
3461 other options on to these processes the -W<letter> options must be used.\n\
3464 /* The rest of the options are displayed by invocations of the various
3469 add_preprocessor_option (const char *option
, int len
)
3471 preprocessor_options
.safe_push (save_string (option
, len
));
3475 add_assembler_option (const char *option
, int len
)
3477 assembler_options
.safe_push (save_string (option
, len
));
3481 add_linker_option (const char *option
, int len
)
3483 linker_options
.safe_push (save_string (option
, len
));
3486 /* Allocate space for an input file in infiles. */
3491 if (n_infiles_alloc
== 0)
3493 n_infiles_alloc
= 16;
3494 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3496 else if (n_infiles_alloc
== n_infiles
)
3498 n_infiles_alloc
*= 2;
3499 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3503 /* Store an input file with the given NAME and LANGUAGE in
3507 add_infile (const char *name
, const char *language
)
3510 infiles
[n_infiles
].name
= name
;
3511 infiles
[n_infiles
++].language
= language
;
3514 /* Allocate space for a switch in switches. */
3519 if (n_switches_alloc
== 0)
3521 n_switches_alloc
= 16;
3522 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3524 else if (n_switches_alloc
== n_switches
)
3526 n_switches_alloc
*= 2;
3527 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3531 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3532 as validated if VALIDATED and KNOWN if it is an internal switch. */
3535 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3536 bool validated
, bool known
)
3539 switches
[n_switches
].part1
= opt
+ 1;
3541 switches
[n_switches
].args
= 0;
3544 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3545 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3546 switches
[n_switches
].args
[n_args
] = NULL
;
3549 switches
[n_switches
].live_cond
= 0;
3550 switches
[n_switches
].validated
= validated
;
3551 switches
[n_switches
].known
= known
;
3552 switches
[n_switches
].ordering
= 0;
3556 /* Set the SOURCE_DATE_EPOCH environment variable to the current time if it is
3560 set_source_date_epoch_envvar ()
3562 /* Array size is 21 = ceil(log_10(2^64)) + 1 to hold string representations
3563 of 64 bit integers. */
3564 char source_date_epoch
[21];
3569 if (tt
< (time_t) 0 || errno
!= 0)
3572 snprintf (source_date_epoch
, 21, "%llu", (unsigned long long) tt
);
3573 /* Using setenv instead of xputenv because we want the variable to remain
3574 after finalizing so that it's still set in the second run when using
3576 setenv ("SOURCE_DATE_EPOCH", source_date_epoch
, 0);
3579 /* Handle an option DECODED that is unknown to the option-processing
3583 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3585 const char *opt
= decoded
->arg
;
3586 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3587 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3589 /* Leave unknown -Wno-* options for the compiler proper, to be
3590 diagnosed only if there are warnings. */
3591 save_switch (decoded
->canonical_option
[0],
3592 decoded
->canonical_option_num_elements
- 1,
3593 &decoded
->canonical_option
[1], false, true);
3596 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3598 /* Give it a chance to define it a spec file. */
3599 save_switch (decoded
->canonical_option
[0],
3600 decoded
->canonical_option_num_elements
- 1,
3601 &decoded
->canonical_option
[1], false, false);
3608 /* Handle an option DECODED that is not marked as CL_DRIVER.
3609 LANG_MASK will always be CL_DRIVER. */
3612 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3613 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3615 /* At this point, non-driver options are accepted (and expected to
3616 be passed down by specs) unless marked to be rejected by the
3617 driver. Options to be rejected by the driver but accepted by the
3618 compilers proper are treated just like completely unknown
3620 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3622 if (option
->cl_reject_driver
)
3623 error ("unrecognized command line option %qs",
3624 decoded
->orig_option_with_args_text
);
3626 save_switch (decoded
->canonical_option
[0],
3627 decoded
->canonical_option_num_elements
- 1,
3628 &decoded
->canonical_option
[1], false, true);
3631 static const char *spec_lang
= 0;
3632 static int last_language_n_infiles
;
3634 /* Parse -foffload option argument. */
3637 handle_foffload_option (const char *arg
)
3639 const char *c
, *cur
, *n
, *next
, *end
;
3642 /* If option argument starts with '-' then no target is specified and we
3643 do not need to parse it. */
3647 end
= strchr (arg
, '=');
3649 end
= strchr (arg
, '\0');
3654 next
= strchr (cur
, ',');
3657 next
= (next
> end
) ? end
: next
;
3659 target
= XNEWVEC (char, next
- cur
+ 1);
3660 memcpy (target
, cur
, next
- cur
);
3661 target
[next
- cur
] = '\0';
3663 /* If 'disable' is passed to the option, stop parsing the option and clean
3664 the list of offload targets. */
3665 if (strcmp (target
, "disable") == 0)
3667 free (offload_targets
);
3668 offload_targets
= xstrdup ("");
3672 /* Check that GCC is configured to support the offload target. */
3673 c
= OFFLOAD_TARGETS
;
3676 n
= strchr (c
, ',');
3678 n
= strchr (c
, '\0');
3680 if (next
- cur
== n
- c
&& strncmp (target
, c
, n
- c
) == 0)
3683 c
= *n
? n
+ 1 : NULL
;
3687 fatal_error (input_location
,
3688 "GCC is not configured to support %s as offload target",
3691 if (!offload_targets
)
3693 offload_targets
= target
;
3698 /* Check that the target hasn't already presented in the list. */
3699 c
= offload_targets
;
3702 n
= strchr (c
, ':');
3704 n
= strchr (c
, '\0');
3706 if (next
- cur
== n
- c
&& strncmp (c
, target
, n
- c
) == 0)
3713 /* If duplicate is not found, append the target to the list. */
3716 size_t offload_targets_len
= strlen (offload_targets
);
3718 = XRESIZEVEC (char, offload_targets
,
3719 offload_targets_len
+ 1 + next
- cur
+ 1);
3720 offload_targets
[offload_targets_len
++] = ':';
3721 memcpy (offload_targets
+ offload_targets_len
, target
, next
- cur
+ 1);
3726 XDELETEVEC (target
);
3730 /* Handle a driver option; arguments and return value as for
3734 driver_handle_option (struct gcc_options
*opts
,
3735 struct gcc_options
*opts_set
,
3736 const struct cl_decoded_option
*decoded
,
3737 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3739 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3740 diagnostic_context
*dc
)
3742 size_t opt_index
= decoded
->opt_index
;
3743 const char *arg
= decoded
->arg
;
3744 const char *compare_debug_replacement_opt
;
3745 int value
= decoded
->value
;
3746 bool validated
= false;
3747 bool do_save
= true;
3749 gcc_assert (opts
== &global_options
);
3750 gcc_assert (opts_set
== &global_options_set
);
3751 gcc_assert (kind
== DK_UNSPECIFIED
);
3752 gcc_assert (loc
== UNKNOWN_LOCATION
);
3753 gcc_assert (dc
== global_dc
);
3759 struct spec_list
*sl
;
3761 for (sl
= specs
; sl
; sl
= sl
->next
)
3762 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3763 if (link_command_spec
)
3764 printf ("*link_command:\n%s\n\n", link_command_spec
);
3768 case OPT_dumpversion
:
3769 printf ("%s\n", spec_version
);
3772 case OPT_dumpmachine
:
3773 printf ("%s\n", spec_machine
);
3779 /* CPP driver cannot obtain switch from cc1_options. */
3781 add_preprocessor_option ("--version", strlen ("--version"));
3782 add_assembler_option ("--version", strlen ("--version"));
3783 add_linker_option ("--version", strlen ("--version"));
3787 print_help_list
= 1;
3789 /* CPP driver cannot obtain switch from cc1_options. */
3791 add_preprocessor_option ("--help", 6);
3792 add_assembler_option ("--help", 6);
3793 add_linker_option ("--help", 6);
3797 print_subprocess_help
= 2;
3800 case OPT__target_help
:
3801 print_subprocess_help
= 1;
3803 /* CPP driver cannot obtain switch from cc1_options. */
3805 add_preprocessor_option ("--target-help", 13);
3806 add_assembler_option ("--target-help", 13);
3807 add_linker_option ("--target-help", 13);
3810 case OPT__no_sysroot_suffix
:
3811 case OPT_pass_exit_codes
:
3812 case OPT_print_search_dirs
:
3813 case OPT_print_file_name_
:
3814 case OPT_print_prog_name_
:
3815 case OPT_print_multi_lib
:
3816 case OPT_print_multi_directory
:
3817 case OPT_print_sysroot
:
3818 case OPT_print_multi_os_directory
:
3819 case OPT_print_multiarch
:
3820 case OPT_print_sysroot_headers_suffix
:
3823 /* These options set the variables specified in common.opt
3824 automatically, and do not need to be saved for spec
3829 case OPT_print_libgcc_file_name
:
3830 print_file_name
= "libgcc.a";
3834 case OPT_fuse_ld_bfd
:
3838 case OPT_fuse_ld_gold
:
3842 case OPT_fcompare_debug_second
:
3843 compare_debug_second
= 1;
3846 case OPT_fcompare_debug
:
3850 compare_debug_replacement_opt
= "-fcompare-debug=";
3852 goto compare_debug_with_arg
;
3855 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3857 goto compare_debug_with_arg
;
3864 case OPT_fcompare_debug_
:
3865 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3866 compare_debug_with_arg
:
3867 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3868 gcc_assert (arg
!= NULL
);
3873 if (compare_debug
< 0)
3874 compare_debug_opt
= NULL
;
3876 compare_debug_opt
= arg
;
3877 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
3878 set_source_date_epoch_envvar ();
3881 case OPT_fdiagnostics_color_
:
3882 diagnostic_color_init (dc
, value
);
3888 /* Pass the rest of this option to the assembler. */
3890 /* Split the argument at commas. */
3892 for (j
= 0; arg
[j
]; j
++)
3895 add_assembler_option (arg
+ prev
, j
- prev
);
3899 /* Record the part after the last comma. */
3900 add_assembler_option (arg
+ prev
, j
- prev
);
3908 /* Pass the rest of this option to the preprocessor. */
3910 /* Split the argument at commas. */
3912 for (j
= 0; arg
[j
]; j
++)
3915 add_preprocessor_option (arg
+ prev
, j
- prev
);
3919 /* Record the part after the last comma. */
3920 add_preprocessor_option (arg
+ prev
, j
- prev
);
3928 /* Split the argument at commas. */
3930 for (j
= 0; arg
[j
]; j
++)
3933 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3936 /* Record the part after the last comma. */
3937 add_infile (arg
+ prev
, "*");
3943 add_infile (arg
, "*");
3947 case OPT_Xpreprocessor
:
3948 add_preprocessor_option (arg
, strlen (arg
));
3952 case OPT_Xassembler
:
3953 add_assembler_option (arg
, strlen (arg
));
3958 /* POSIX allows separation of -l and the lib arg; canonicalize
3959 by concatenating -l with its arg */
3960 add_infile (concat ("-l", arg
, NULL
), "*");
3965 /* Similarly, canonicalize -L for linkers that may not accept
3966 separate arguments. */
3967 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
3972 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
3975 case OPT_save_temps
:
3976 save_temps_flag
= SAVE_TEMPS_CWD
;
3980 case OPT_save_temps_
:
3981 if (strcmp (arg
, "cwd") == 0)
3982 save_temps_flag
= SAVE_TEMPS_CWD
;
3983 else if (strcmp (arg
, "obj") == 0
3984 || strcmp (arg
, "object") == 0)
3985 save_temps_flag
= SAVE_TEMPS_OBJ
;
3987 fatal_error (input_location
, "%qs is an unknown -save-temps option",
3988 decoded
->orig_option_with_args_text
);
3991 case OPT_no_canonical_prefixes
:
3992 /* Already handled as a special case, so ignored here. */
3998 /* These options set the variables specified in common.opt
3999 automatically, but do need to be saved for spec
4005 struct user_specs
*user
= XNEW (struct user_specs
);
4007 user
->next
= (struct user_specs
*) 0;
4008 user
->filename
= arg
;
4009 if (user_specs_tail
)
4010 user_specs_tail
->next
= user
;
4012 user_specs_head
= user
;
4013 user_specs_tail
= user
;
4019 target_system_root
= arg
;
4020 target_system_root_changed
= 1;
4025 if (report_times_to_file
)
4026 fclose (report_times_to_file
);
4027 report_times_to_file
= fopen (arg
, "a");
4033 This is similar to -v except that there is no execution
4034 of the commands and the echoed arguments are quoted. It
4035 is intended for use in shell scripts to capture the
4036 driver-generated command line. */
4037 verbose_only_flag
++;
4044 size_t len
= strlen (arg
);
4046 /* Catch the case where the user has forgotten to append a
4047 directory separator to the path. Note, they may be using
4048 -B to add an executable name prefix, eg "i386-elf-", in
4049 order to distinguish between multiple installations of
4050 GCC in the same directory. Hence we must check to see
4051 if appending a directory separator actually makes a
4052 valid directory name. */
4053 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
4054 && is_directory (arg
, false))
4056 char *tmp
= XNEWVEC (char, len
+ 2);
4058 tmp
[len
] = DIR_SEPARATOR
;
4063 add_prefix (&exec_prefixes
, arg
, NULL
,
4064 PREFIX_PRIORITY_B_OPT
, 0, 0);
4065 add_prefix (&startfile_prefixes
, arg
, NULL
,
4066 PREFIX_PRIORITY_B_OPT
, 0, 0);
4067 add_prefix (&include_prefixes
, arg
, NULL
,
4068 PREFIX_PRIORITY_B_OPT
, 0, 0);
4079 if (!strcmp (spec_lang
, "none"))
4080 /* Suppress the warning if -xnone comes after the last input
4081 file, because alternate command interfaces like g++ might
4082 find it useful to place -xnone after each input file. */
4085 last_language_n_infiles
= n_infiles
;
4091 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4092 arg
= convert_filename (arg
, ! have_c
, 0);
4095 /* Save the output name in case -save-temps=obj was used. */
4096 save_temps_prefix
= xstrdup (arg
);
4097 /* On some systems, ld cannot handle "-o" without a space. So
4098 split the option from its argument. */
4099 save_switch ("-o", 1, &arg
, validated
, true);
4102 #ifdef ENABLE_DEFAULT_PIE
4104 /* -pie is turned on by default. */
4107 case OPT_static_libgcc
:
4108 case OPT_shared_libgcc
:
4109 case OPT_static_libgfortran
:
4110 case OPT_static_libstdc__
:
4111 /* These are always valid, since gcc.c itself understands the
4112 first two, gfortranspec.c understands -static-libgfortran and
4113 g++spec.c understands -static-libstdc++ */
4122 handle_foffload_option (arg
);
4126 /* Various driver options need no special processing at this
4127 point, having been handled in a prescan above or being
4128 handled by specs. */
4133 save_switch (decoded
->canonical_option
[0],
4134 decoded
->canonical_option_num_elements
- 1,
4135 &decoded
->canonical_option
[1], validated
, true);
4139 /* Put the driver's standard set of option handlers in *HANDLERS. */
4142 set_option_handlers (struct cl_option_handlers
*handlers
)
4144 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
4145 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
4146 handlers
->num_handlers
= 3;
4147 handlers
->handlers
[0].handler
= driver_handle_option
;
4148 handlers
->handlers
[0].mask
= CL_DRIVER
;
4149 handlers
->handlers
[1].handler
= common_handle_option
;
4150 handlers
->handlers
[1].mask
= CL_COMMON
;
4151 handlers
->handlers
[2].handler
= target_handle_option
;
4152 handlers
->handlers
[2].mask
= CL_TARGET
;
4155 /* Create the vector `switches' and its contents.
4156 Store its length in `n_switches'. */
4159 process_command (unsigned int decoded_options_count
,
4160 struct cl_decoded_option
*decoded_options
)
4164 char *tooldir_prefix
, *tooldir_prefix2
;
4165 char *(*get_relative_prefix
) (const char *, const char *,
4166 const char *) = NULL
;
4167 struct cl_option_handlers handlers
;
4170 gcc_exec_prefix
= env
.get ("GCC_EXEC_PREFIX");
4174 added_libraries
= 0;
4176 /* Figure compiler version from version string. */
4178 compiler_version
= temp1
= xstrdup (version_string
);
4180 for (; *temp1
; ++temp1
)
4189 /* Handle any -no-canonical-prefixes flag early, to assign the function
4190 that builds relative prefixes. This function creates default search
4191 paths that are needed later in normal option handling. */
4193 for (j
= 1; j
< decoded_options_count
; j
++)
4195 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
4197 get_relative_prefix
= make_relative_prefix_ignore_links
;
4201 if (! get_relative_prefix
)
4202 get_relative_prefix
= make_relative_prefix
;
4204 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
4205 see if we can create it from the pathname specified in
4206 decoded_options[0].arg. */
4208 gcc_libexec_prefix
= standard_libexec_prefix
;
4210 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
4211 if (!gcc_exec_prefix
)
4213 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4214 standard_bindir_prefix
,
4215 standard_exec_prefix
);
4216 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4217 standard_bindir_prefix
,
4218 standard_libexec_prefix
);
4219 if (gcc_exec_prefix
)
4220 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
4224 /* make_relative_prefix requires a program name, but
4225 GCC_EXEC_PREFIX is typically a directory name with a trailing
4226 / (which is ignored by make_relative_prefix), so append a
4228 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
4229 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
4230 standard_exec_prefix
,
4231 standard_libexec_prefix
);
4233 /* The path is unrelocated, so fallback to the original setting. */
4234 if (!gcc_libexec_prefix
)
4235 gcc_libexec_prefix
= standard_libexec_prefix
;
4241 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
4242 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
4243 or an automatically created GCC_EXEC_PREFIX from
4244 decoded_options[0].arg. */
4246 /* Do language-specific adjustment/addition of flags. */
4247 lang_specific_driver (&decoded_options
, &decoded_options_count
,
4250 if (gcc_exec_prefix
)
4252 int len
= strlen (gcc_exec_prefix
);
4254 if (len
> (int) sizeof ("/lib/gcc/") - 1
4255 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
4257 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
4258 if (IS_DIR_SEPARATOR (*temp
)
4259 && filename_ncmp (temp
+ 1, "lib", 3) == 0
4260 && IS_DIR_SEPARATOR (temp
[4])
4261 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
4262 len
-= sizeof ("/lib/gcc/") - 1;
4265 set_std_prefix (gcc_exec_prefix
, len
);
4266 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
4267 PREFIX_PRIORITY_LAST
, 0, 0);
4268 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
4269 PREFIX_PRIORITY_LAST
, 0, 0);
4272 /* COMPILER_PATH and LIBRARY_PATH have values
4273 that are lists of directory names with colons. */
4275 temp
= env
.get ("COMPILER_PATH");
4278 const char *startp
, *endp
;
4279 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4281 startp
= endp
= temp
;
4284 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4286 strncpy (nstore
, startp
, endp
- startp
);
4288 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4289 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4291 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4292 nstore
[endp
- startp
+ 1] = 0;
4295 nstore
[endp
- startp
] = 0;
4296 add_prefix (&exec_prefixes
, nstore
, 0,
4297 PREFIX_PRIORITY_LAST
, 0, 0);
4298 add_prefix (&include_prefixes
, nstore
, 0,
4299 PREFIX_PRIORITY_LAST
, 0, 0);
4302 endp
= startp
= endp
+ 1;
4309 temp
= env
.get (LIBRARY_PATH_ENV
);
4310 if (temp
&& *cross_compile
== '0')
4312 const char *startp
, *endp
;
4313 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4315 startp
= endp
= temp
;
4318 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4320 strncpy (nstore
, startp
, endp
- startp
);
4322 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4323 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4325 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4326 nstore
[endp
- startp
+ 1] = 0;
4329 nstore
[endp
- startp
] = 0;
4330 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4331 PREFIX_PRIORITY_LAST
, 0, 1);
4334 endp
= startp
= endp
+ 1;
4341 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4342 temp
= env
.get ("LPATH");
4343 if (temp
&& *cross_compile
== '0')
4345 const char *startp
, *endp
;
4346 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4348 startp
= endp
= temp
;
4351 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4353 strncpy (nstore
, startp
, endp
- startp
);
4355 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4356 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4358 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4359 nstore
[endp
- startp
+ 1] = 0;
4362 nstore
[endp
- startp
] = 0;
4363 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4364 PREFIX_PRIORITY_LAST
, 0, 1);
4367 endp
= startp
= endp
+ 1;
4374 /* Process the options and store input files and switches in their
4377 last_language_n_infiles
= -1;
4379 set_option_handlers (&handlers
);
4381 for (j
= 1; j
< decoded_options_count
; j
++)
4383 switch (decoded_options
[j
].opt_index
)
4395 for (j
= 1; j
< decoded_options_count
; j
++)
4397 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4399 const char *arg
= decoded_options
[j
].arg
;
4400 const char *p
= strrchr (arg
, '@');
4404 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4405 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4407 /* For LTO static archive support we handle input file
4408 specifications that are composed of a filename and
4409 an offset like FNAME@OFFSET. */
4412 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4413 && strlen (p
) == (unsigned int)consumed
)
4415 fname
= (char *)xmalloc (p
- arg
+ 1);
4416 memcpy (fname
, arg
, p
- arg
);
4417 fname
[p
- arg
] = '\0';
4418 /* Only accept non-stdin and existing FNAME parts, otherwise
4419 try with the full name. */
4420 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4423 fname
= xstrdup (arg
);
4427 fname
= xstrdup (arg
);
4429 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4431 if (fname
[0] == '@' && access (fname
+ 1, F_OK
) < 0)
4432 perror_with_name (fname
+ 1);
4434 perror_with_name (fname
);
4437 add_infile (arg
, spec_lang
);
4443 read_cmdline_option (&global_options
, &global_options_set
,
4444 decoded_options
+ j
, UNKNOWN_LOCATION
,
4445 CL_DRIVER
, &handlers
, global_dc
);
4448 /* If the user didn't specify any, default to all configured offload
4450 if (ENABLE_OFFLOADING
&& offload_targets
== NULL
)
4451 handle_foffload_option (OFFLOAD_TARGETS
);
4454 && strcmp (output_file
, "-") != 0
4455 && strcmp (output_file
, HOST_BIT_BUCKET
) != 0)
4458 for (i
= 0; i
< n_infiles
; i
++)
4459 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
4460 && canonical_filename_eq (infiles
[i
].name
, output_file
))
4461 fatal_error (input_location
,
4462 "input file %qs is the same as output file",
4466 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4467 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4468 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4470 save_temps_length
= strlen (save_temps_prefix
);
4471 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4474 save_temps_length
-= strlen (temp
);
4475 save_temps_prefix
[save_temps_length
] = '\0';
4479 else if (save_temps_prefix
!= NULL
)
4481 free (save_temps_prefix
);
4482 save_temps_prefix
= NULL
;
4485 if (save_temps_flag
&& use_pipes
)
4487 /* -save-temps overrides -pipe, so that temp files are produced */
4488 if (save_temps_flag
)
4489 warning (0, "-pipe ignored because -save-temps specified");
4495 const char *gcd
= env
.get ("GCC_COMPARE_DEBUG");
4497 if (gcd
&& gcd
[0] == '-')
4500 compare_debug_opt
= gcd
;
4502 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4505 compare_debug_opt
= "-gtoggle";
4508 else if (compare_debug
< 0)
4511 gcc_assert (!compare_debug_opt
);
4514 /* Set up the search paths. We add directories that we expect to
4515 contain GNU Toolchain components before directories specified by
4516 the machine description so that we will find GNU components (like
4517 the GNU assembler) before those of the host system. */
4519 /* If we don't know where the toolchain has been installed, use the
4520 configured-in locations. */
4521 if (!gcc_exec_prefix
)
4524 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4525 PREFIX_PRIORITY_LAST
, 1, 0);
4526 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4527 PREFIX_PRIORITY_LAST
, 2, 0);
4528 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4529 PREFIX_PRIORITY_LAST
, 2, 0);
4531 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4532 PREFIX_PRIORITY_LAST
, 1, 0);
4535 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4536 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
4537 dir_separator_str
, NULL
);
4539 /* Look for tools relative to the location from which the driver is
4540 running, or, if that is not available, the configured prefix. */
4542 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4543 spec_host_machine
, dir_separator_str
, spec_version
,
4544 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
4545 free (tooldir_prefix2
);
4547 add_prefix (&exec_prefixes
,
4548 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4549 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4550 add_prefix (&startfile_prefixes
,
4551 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4552 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4553 free (tooldir_prefix
);
4555 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4556 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4557 then consider it to relocate with the rest of the GCC installation
4558 if GCC_EXEC_PREFIX is set.
4559 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4560 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4562 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4563 standard_bindir_prefix
,
4564 target_system_root
);
4565 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4567 target_system_root
= tmp_prefix
;
4568 target_system_root_changed
= 1;
4573 /* More prefixes are enabled in main, after we read the specs file
4574 and determine whether this is cross-compilation or not. */
4576 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4577 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4579 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4580 environment variable. */
4581 if (compare_debug
== 2 || compare_debug
== 3)
4583 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4584 save_switch (opt
, 0, NULL
, false, true);
4588 /* Ensure we only invoke each subprocess once. */
4589 if (print_subprocess_help
|| print_help_list
|| print_version
)
4593 /* Create a dummy input file, so that we can pass
4594 the help option on to the various sub-processes. */
4595 add_infile ("help-dummy", "c");
4598 /* Decide if undefined variable references are allowed in specs. */
4600 /* --version and --help alone or together are safe. Note that -v would
4601 make them unsafe, as they'd then be run for subprocesses as well, the
4602 location of which might depend on variables possibly coming from
4605 Count the number of options we have for which undefined variables
4606 are harmless for sure, and check that nothing else is set. */
4608 unsigned n_varsafe_options
= 0;
4611 n_varsafe_options
++;
4613 if (print_help_list
)
4614 n_varsafe_options
++;
4616 spec_undefvar_allowed
= (n_varsafe_options
== decoded_options_count
- 1);
4619 switches
[n_switches
].part1
= 0;
4621 infiles
[n_infiles
].name
= 0;
4624 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4625 and place that in the environment. */
4628 set_collect_gcc_options (void)
4633 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4635 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4636 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4639 for (i
= 0; (int) i
< n_switches
; i
++)
4641 const char *const *args
;
4644 obstack_grow (&collect_obstack
, " ", 1);
4648 /* Ignore elided switches. */
4649 if ((switches
[i
].live_cond
4650 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4654 obstack_grow (&collect_obstack
, "'-", 2);
4655 q
= switches
[i
].part1
;
4656 while ((p
= strchr (q
, '\'')))
4658 obstack_grow (&collect_obstack
, q
, p
- q
);
4659 obstack_grow (&collect_obstack
, "'\\''", 4);
4662 obstack_grow (&collect_obstack
, q
, strlen (q
));
4663 obstack_grow (&collect_obstack
, "'", 1);
4665 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4667 obstack_grow (&collect_obstack
, " '", 2);
4669 while ((p
= strchr (q
, '\'')))
4671 obstack_grow (&collect_obstack
, q
, p
- q
);
4672 obstack_grow (&collect_obstack
, "'\\''", 4);
4675 obstack_grow (&collect_obstack
, q
, strlen (q
));
4676 obstack_grow (&collect_obstack
, "'", 1);
4679 obstack_grow (&collect_obstack
, "\0", 1);
4680 xputenv (XOBFINISH (&collect_obstack
, char *));
4683 /* Process a spec string, accumulating and running commands. */
4685 /* These variables describe the input file name.
4686 input_file_number is the index on outfiles of this file,
4687 so that the output file name can be stored for later use by %o.
4688 input_basename is the start of the part of the input file
4689 sans all directory names, and basename_length is the number
4690 of characters starting there excluding the suffix .c or whatever. */
4692 static const char *gcc_input_filename
;
4693 static int input_file_number
;
4694 size_t input_filename_length
;
4695 static int basename_length
;
4696 static int suffixed_basename_length
;
4697 static const char *input_basename
;
4698 static const char *input_suffix
;
4699 #ifndef HOST_LACKS_INODE_NUMBERS
4700 static struct stat input_stat
;
4702 static int input_stat_set
;
4704 /* The compiler used to process the current input file. */
4705 static struct compiler
*input_file_compiler
;
4707 /* These are variables used within do_spec and do_spec_1. */
4709 /* Nonzero if an arg has been started and not yet terminated
4710 (with space, tab or newline). */
4711 static int arg_going
;
4713 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4714 is a temporary file name. */
4715 static int delete_this_arg
;
4717 /* Nonzero means %w has been seen; the next arg to be terminated
4718 is the output file name of this compilation. */
4719 static int this_is_output_file
;
4721 /* Nonzero means %s has been seen; the next arg to be terminated
4722 is the name of a library file and we should try the standard
4723 search dirs for it. */
4724 static int this_is_library_file
;
4726 /* Nonzero means %T has been seen; the next arg to be terminated
4727 is the name of a linker script and we should try all of the
4728 standard search dirs for it. If it is found insert a --script
4729 command line switch and then substitute the full path in place,
4730 otherwise generate an error message. */
4731 static int this_is_linker_script
;
4733 /* Nonzero means that the input of this command is coming from a pipe. */
4734 static int input_from_pipe
;
4736 /* Nonnull means substitute this for any suffix when outputting a switches
4738 static const char *suffix_subst
;
4740 /* If there is an argument being accumulated, terminate it and store it. */
4743 end_going_arg (void)
4749 obstack_1grow (&obstack
, 0);
4750 string
= XOBFINISH (&obstack
, const char *);
4751 if (this_is_library_file
)
4752 string
= find_file (string
);
4753 if (this_is_linker_script
)
4755 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4757 if (full_script_path
== NULL
)
4759 error ("unable to locate default linker script %qs in the library search paths", string
);
4760 /* Script was not found on search path. */
4763 store_arg ("--script", false, false);
4764 string
= full_script_path
;
4766 store_arg (string
, delete_this_arg
, this_is_output_file
);
4767 if (this_is_output_file
)
4768 outfiles
[input_file_number
] = string
;
4774 /* Parse the WRAPPER string which is a comma separated list of the command line
4775 and insert them into the beginning of argbuf. */
4778 insert_wrapper (const char *wrapper
)
4782 char *buf
= xstrdup (wrapper
);
4784 unsigned int old_length
= argbuf
.length ();
4792 while ((p
= strchr (p
, ',')) != NULL
);
4794 argbuf
.safe_grow (old_length
+ n
);
4795 memmove (argbuf
.address () + n
,
4797 old_length
* sizeof (const_char_p
));
4811 while ((p
= strchr (p
, ',')) != NULL
);
4812 gcc_assert (i
== n
);
4815 /* Process the spec SPEC and run the commands specified therein.
4816 Returns 0 if the spec is successfully processed; -1 if failed. */
4819 do_spec (const char *spec
)
4823 value
= do_spec_2 (spec
);
4825 /* Force out any unfinished command.
4826 If -pipe, this forces out the last command if it ended in `|'. */
4829 if (argbuf
.length () > 0
4830 && !strcmp (argbuf
.last (), "|"))
4833 set_collect_gcc_options ();
4835 if (argbuf
.length () > 0)
4843 do_spec_2 (const char *spec
)
4849 delete_this_arg
= 0;
4850 this_is_output_file
= 0;
4851 this_is_library_file
= 0;
4852 this_is_linker_script
= 0;
4853 input_from_pipe
= 0;
4854 suffix_subst
= NULL
;
4856 result
= do_spec_1 (spec
, 0, NULL
);
4864 /* Process the given spec string and add any new options to the end
4865 of the switches/n_switches array. */
4868 do_option_spec (const char *name
, const char *spec
)
4870 unsigned int i
, value_count
, value_len
;
4871 const char *p
, *q
, *value
;
4872 char *tmp_spec
, *tmp_spec_p
;
4874 if (configure_default_options
[0].name
== NULL
)
4877 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4878 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4880 if (i
== ARRAY_SIZE (configure_default_options
))
4883 value
= configure_default_options
[i
].value
;
4884 value_len
= strlen (value
);
4886 /* Compute the size of the final spec. */
4889 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4895 /* Replace each %(VALUE) by the specified value. */
4896 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4897 + value_count
* (value_len
- strlen ("%(VALUE)")));
4898 tmp_spec_p
= tmp_spec
;
4900 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4902 memcpy (tmp_spec_p
, q
, p
- q
);
4903 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4904 memcpy (tmp_spec_p
, value
, value_len
);
4905 tmp_spec_p
+= value_len
;
4906 q
= p
+ strlen ("%(VALUE)");
4908 strcpy (tmp_spec_p
, q
);
4910 do_self_spec (tmp_spec
);
4913 /* Process the given spec string and add any new options to the end
4914 of the switches/n_switches array. */
4917 do_self_spec (const char *spec
)
4922 do_spec_1 (" ", 0, NULL
);
4924 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4925 do_self_specs adds the replacements to switches array, so it shouldn't
4926 be processed afterwards. */
4927 for (i
= 0; i
< n_switches
; i
++)
4928 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4929 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4931 if (argbuf
.length () > 0)
4933 const char **argbuf_copy
;
4934 struct cl_decoded_option
*decoded_options
;
4935 struct cl_option_handlers handlers
;
4936 unsigned int decoded_options_count
;
4939 /* Create a copy of argbuf with a dummy argv[0] entry for
4940 decode_cmdline_options_to_array. */
4941 argbuf_copy
= XNEWVEC (const char *,
4942 argbuf
.length () + 1);
4943 argbuf_copy
[0] = "";
4944 memcpy (argbuf_copy
+ 1, argbuf
.address (),
4945 argbuf
.length () * sizeof (const char *));
4947 decode_cmdline_options_to_array (argbuf
.length () + 1,
4949 CL_DRIVER
, &decoded_options
,
4950 &decoded_options_count
);
4953 set_option_handlers (&handlers
);
4955 for (j
= 1; j
< decoded_options_count
; j
++)
4957 switch (decoded_options
[j
].opt_index
)
4959 case OPT_SPECIAL_input_file
:
4960 /* Specs should only generate options, not input
4962 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4963 fatal_error (input_location
,
4964 "switch %qs does not start with %<-%>",
4965 decoded_options
[j
].arg
);
4967 fatal_error (input_location
,
4968 "spec-generated switch is just %<-%>");
4971 case OPT_fcompare_debug_second
:
4972 case OPT_fcompare_debug
:
4973 case OPT_fcompare_debug_
:
4975 /* Avoid duplicate processing of some options from
4976 compare-debug specs; just save them here. */
4977 save_switch (decoded_options
[j
].canonical_option
[0],
4978 (decoded_options
[j
].canonical_option_num_elements
4980 &decoded_options
[j
].canonical_option
[1], false, true);
4984 read_cmdline_option (&global_options
, &global_options_set
,
4985 decoded_options
+ j
, UNKNOWN_LOCATION
,
4986 CL_DRIVER
, &handlers
, global_dc
);
4991 free (decoded_options
);
4994 switches
[n_switches
].part1
= 0;
4998 /* Callback for processing %D and %I specs. */
5000 struct spec_path_info
{
5005 bool separate_options
;
5009 spec_path (char *path
, void *data
)
5011 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
5015 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
5018 if (info
->append_len
!= 0)
5020 len
= strlen (path
);
5021 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
5024 if (!is_directory (path
, true))
5027 do_spec_1 (info
->option
, 1, NULL
);
5028 if (info
->separate_options
)
5029 do_spec_1 (" ", 0, NULL
);
5031 if (info
->append_len
== 0)
5033 len
= strlen (path
);
5034 save
= path
[len
- 1];
5035 if (IS_DIR_SEPARATOR (path
[len
- 1]))
5036 path
[len
- 1] = '\0';
5039 do_spec_1 (path
, 1, NULL
);
5040 do_spec_1 (" ", 0, NULL
);
5042 /* Must not damage the original path. */
5043 if (info
->append_len
== 0)
5044 path
[len
- 1] = save
;
5049 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
5053 create_at_file (char **argv
)
5055 char *temp_file
= make_temp_file ("");
5056 char *at_argument
= concat ("@", temp_file
, NULL
);
5057 FILE *f
= fopen (temp_file
, "w");
5061 fatal_error (input_location
, "could not open temporary response file %s",
5064 status
= writeargv (argv
, f
);
5067 fatal_error (input_location
,
5068 "could not write to temporary response file %s",
5071 status
= fclose (f
);
5074 fatal_error (input_location
, "could not close temporary response file %s",
5077 store_arg (at_argument
, 0, 0);
5079 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5082 /* True if we should compile INFILE. */
5085 compile_input_file_p (struct infile
*infile
)
5087 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5088 if (infile
->incompiler
== input_file_compiler
)
5093 /* Process each member of VEC as a spec. */
5096 do_specs_vec (vec
<char_p
> vec
)
5101 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
5103 do_spec_1 (opt
, 1, NULL
);
5104 /* Make each accumulated option a separate argument. */
5105 do_spec_1 (" ", 0, NULL
);
5109 /* Process the sub-spec SPEC as a portion of a larger spec.
5110 This is like processing a whole spec except that we do
5111 not initialize at the beginning and we do not supply a
5112 newline by default at the end.
5113 INSWITCH nonzero means don't process %-sequences in SPEC;
5114 in this case, % is treated as an ordinary character.
5115 This is used while substituting switches.
5116 INSWITCH nonzero also causes SPC not to terminate an argument.
5118 Value is zero unless a line was finished
5119 and the command on that line reported an error. */
5122 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5124 const char *p
= spec
;
5129 /* If it's an empty string argument to a switch, keep it as is. */
5130 if (inswitch
&& !*p
)
5134 /* If substituting a switch, treat all chars like letters.
5135 Otherwise, NL, SPC, TAB and % are special. */
5136 switch (inswitch
? 'a' : c
)
5141 if (argbuf
.length () > 0
5142 && !strcmp (argbuf
.last (), "|"))
5144 /* A `|' before the newline means use a pipe here,
5145 but only if -pipe was specified.
5146 Otherwise, execute now and don't pass the `|' as an arg. */
5149 input_from_pipe
= 1;
5156 set_collect_gcc_options ();
5158 if (argbuf
.length () > 0)
5164 /* Reinitialize for a new command, and for a new argument. */
5167 delete_this_arg
= 0;
5168 this_is_output_file
= 0;
5169 this_is_library_file
= 0;
5170 this_is_linker_script
= 0;
5171 input_from_pipe
= 0;
5178 obstack_1grow (&obstack
, c
);
5186 /* Reinitialize for a new argument. */
5187 delete_this_arg
= 0;
5188 this_is_output_file
= 0;
5189 this_is_library_file
= 0;
5190 this_is_linker_script
= 0;
5197 fatal_error (input_location
, "spec %qs invalid", spec
);
5200 if (save_temps_length
)
5201 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5203 obstack_grow (&obstack
, input_basename
, basename_length
);
5204 if (compare_debug
< 0)
5205 obstack_grow (&obstack
, ".gk", 3);
5210 if (save_temps_length
)
5211 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5213 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
5214 if (compare_debug
< 0)
5215 obstack_grow (&obstack
, ".gk", 3);
5220 delete_this_arg
= 2;
5223 /* Dump out the directories specified with LIBRARY_PATH,
5224 followed by the absolute directories
5225 that we search for startfiles. */
5228 struct spec_path_info info
;
5231 info
.append_len
= 0;
5232 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5233 /* Used on systems which record the specified -L dirs
5234 and use them to search for dynamic linking.
5235 Relative directories always come from -B,
5236 and it is better not to use them for searching
5237 at run time. In particular, stage1 loses. */
5238 info
.omit_relative
= true;
5240 info
.omit_relative
= false;
5242 info
.separate_options
= false;
5244 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5249 /* %efoo means report an error with `foo' as error message
5250 and don't execute any more commands for this file. */
5254 while (*p
!= 0 && *p
!= '\n')
5256 buf
= (char *) alloca (p
- q
+ 1);
5257 strncpy (buf
, q
, p
- q
);
5259 error ("%s", _(buf
));
5264 /* %nfoo means report a notice with `foo' on stderr. */
5268 while (*p
!= 0 && *p
!= '\n')
5270 buf
= (char *) alloca (p
- q
+ 1);
5271 strncpy (buf
, q
, p
- q
);
5273 inform (0, "%s", _(buf
));
5283 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5284 defined, and it is not a directory, and it is
5285 writable, use it. Otherwise, treat this like any
5286 other temporary file. */
5288 if ((!save_temps_flag
)
5289 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5290 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5292 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5293 strlen (HOST_BIT_BUCKET
));
5294 delete_this_arg
= 0;
5299 goto create_temp_file
;
5303 obstack_1grow (&obstack
, '-');
5304 delete_this_arg
= 0;
5307 /* consume suffix */
5308 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5310 if (p
[0] == '%' && p
[1] == 'O')
5315 goto create_temp_file
;
5319 /* consume suffix */
5320 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5322 if (p
[0] == '%' && p
[1] == 'O')
5327 goto create_temp_file
;
5333 struct temp_name
*t
;
5335 const char *suffix
= p
;
5336 char *saved_suffix
= NULL
;
5338 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5340 suffix_length
= p
- suffix
;
5341 if (p
[0] == '%' && p
[1] == 'O')
5344 /* We don't support extra suffix characters after %O. */
5345 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5346 fatal_error (input_location
,
5347 "spec %qs has invalid %<%%0%c%>", spec
, *p
);
5348 if (suffix_length
== 0)
5349 suffix
= TARGET_OBJECT_SUFFIX
;
5353 = XNEWVEC (char, suffix_length
5354 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
5355 strncpy (saved_suffix
, suffix
, suffix_length
);
5356 strcpy (saved_suffix
+ suffix_length
,
5357 TARGET_OBJECT_SUFFIX
);
5359 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5362 if (compare_debug
< 0)
5364 suffix
= concat (".gk", suffix
, NULL
);
5368 /* If -save-temps=obj and -o were specified, use that for the
5370 if (save_temps_length
)
5373 temp_filename_length
5374 = save_temps_length
+ suffix_length
+ 1;
5375 tmp
= (char *) alloca (temp_filename_length
);
5376 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5377 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5378 tmp
[save_temps_length
+ suffix_length
] = '\0';
5379 temp_filename
= save_string (tmp
, save_temps_length
5381 obstack_grow (&obstack
, temp_filename
,
5382 temp_filename_length
);
5384 delete_this_arg
= 0;
5388 /* If the gcc_input_filename has the same suffix specified
5389 for the %g, %u, or %U, and -save-temps is specified,
5390 we could end up using that file as an intermediate
5391 thus clobbering the user's source file (.e.g.,
5392 gcc -save-temps foo.s would clobber foo.s with the
5393 output of cpp0). So check for this condition and
5394 generate a temp file as the intermediate. */
5396 if (save_temps_flag
)
5399 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5400 tmp
= (char *) alloca (temp_filename_length
);
5401 memcpy (tmp
, input_basename
, basename_length
);
5402 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5403 tmp
[basename_length
+ suffix_length
] = '\0';
5404 temp_filename
= tmp
;
5406 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
5408 #ifndef HOST_LACKS_INODE_NUMBERS
5409 struct stat st_temp
;
5411 /* Note, set_input() resets input_stat_set to 0. */
5412 if (input_stat_set
== 0)
5414 input_stat_set
= stat (gcc_input_filename
,
5416 if (input_stat_set
>= 0)
5420 /* If we have the stat for the gcc_input_filename
5421 and we can do the stat for the temp_filename
5422 then the they could still refer to the same
5423 file if st_dev/st_ino's are the same. */
5424 if (input_stat_set
!= 1
5425 || stat (temp_filename
, &st_temp
) < 0
5426 || input_stat
.st_dev
!= st_temp
.st_dev
5427 || input_stat
.st_ino
!= st_temp
.st_ino
)
5429 /* Just compare canonical pathnames. */
5430 char* input_realname
= lrealpath (gcc_input_filename
);
5431 char* temp_realname
= lrealpath (temp_filename
);
5432 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
5433 free (input_realname
);
5434 free (temp_realname
);
5439 = save_string (temp_filename
,
5440 temp_filename_length
- 1);
5441 obstack_grow (&obstack
, temp_filename
,
5442 temp_filename_length
);
5444 delete_this_arg
= 0;
5450 /* See if we already have an association of %g/%u/%U and
5452 for (t
= temp_names
; t
; t
= t
->next
)
5453 if (t
->length
== suffix_length
5454 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5455 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5458 /* Make a new association if needed. %u and %j
5460 if (t
== 0 || c
== 'u' || c
== 'j')
5464 t
= XNEW (struct temp_name
);
5465 t
->next
= temp_names
;
5468 t
->length
= suffix_length
;
5471 t
->suffix
= saved_suffix
;
5472 saved_suffix
= NULL
;
5475 t
->suffix
= save_string (suffix
, suffix_length
);
5476 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5477 temp_filename
= make_temp_file (t
->suffix
);
5478 temp_filename_length
= strlen (temp_filename
);
5479 t
->filename
= temp_filename
;
5480 t
->filename_length
= temp_filename_length
;
5483 free (saved_suffix
);
5485 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5486 delete_this_arg
= 1;
5494 if (at_file_supplied
)
5496 /* We are going to expand `%i' to `@FILE', where FILE
5497 is a newly-created temporary filename. The filenames
5498 that would usually be expanded in place of %o will be
5499 written to the temporary file. */
5504 for (i
= 0; i
< n_infiles
; i
++)
5505 if (compile_input_file_p (&infiles
[i
]))
5508 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5510 /* Copy the strings over. */
5511 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5512 if (compile_input_file_p (&infiles
[i
]))
5514 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5515 infiles
[i
].compiled
= true;
5520 create_at_file (argv
);
5523 for (i
= 0; (int) i
< n_infiles
; i
++)
5524 if (compile_input_file_p (&infiles
[i
]))
5526 store_arg (infiles
[i
].name
, 0, 0);
5527 infiles
[i
].compiled
= true;
5532 obstack_grow (&obstack
, gcc_input_filename
,
5533 input_filename_length
);
5540 struct spec_path_info info
;
5544 do_spec_1 ("-imultilib", 1, NULL
);
5545 /* Make this a separate argument. */
5546 do_spec_1 (" ", 0, NULL
);
5547 do_spec_1 (multilib_dir
, 1, NULL
);
5548 do_spec_1 (" ", 0, NULL
);
5553 do_spec_1 ("-imultiarch", 1, NULL
);
5554 /* Make this a separate argument. */
5555 do_spec_1 (" ", 0, NULL
);
5556 do_spec_1 (multiarch_dir
, 1, NULL
);
5557 do_spec_1 (" ", 0, NULL
);
5560 if (gcc_exec_prefix
)
5562 do_spec_1 ("-iprefix", 1, NULL
);
5563 /* Make this a separate argument. */
5564 do_spec_1 (" ", 0, NULL
);
5565 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5566 do_spec_1 (" ", 0, NULL
);
5569 if (target_system_root_changed
||
5570 (target_system_root
&& target_sysroot_hdrs_suffix
))
5572 do_spec_1 ("-isysroot", 1, NULL
);
5573 /* Make this a separate argument. */
5574 do_spec_1 (" ", 0, NULL
);
5575 do_spec_1 (target_system_root
, 1, NULL
);
5576 if (target_sysroot_hdrs_suffix
)
5577 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5578 do_spec_1 (" ", 0, NULL
);
5581 info
.option
= "-isystem";
5582 info
.append
= "include";
5583 info
.append_len
= strlen (info
.append
);
5584 info
.omit_relative
= false;
5585 info
.separate_options
= true;
5587 for_each_path (&include_prefixes
, false, info
.append_len
,
5590 info
.append
= "include-fixed";
5591 if (*sysroot_hdrs_suffix_spec
)
5592 info
.append
= concat (info
.append
, dir_separator_str
,
5593 multilib_dir
, NULL
);
5594 info
.append_len
= strlen (info
.append
);
5595 for_each_path (&include_prefixes
, false, info
.append_len
,
5602 int max
= n_infiles
;
5603 max
+= lang_specific_extra_outfiles
;
5605 if (HAVE_GNU_LD
&& at_file_supplied
)
5607 /* We are going to expand `%o' to `@FILE', where FILE
5608 is a newly-created temporary filename. The filenames
5609 that would usually be expanded in place of %o will be
5610 written to the temporary file. */
5615 /* Convert OUTFILES into a form suitable for writeargv. */
5617 /* Determine how many are non-NULL. */
5618 for (n_files
= 0, i
= 0; i
< max
; i
++)
5619 n_files
+= outfiles
[i
] != NULL
;
5621 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5623 /* Copy the strings over. */
5624 for (i
= 0, j
= 0; i
< max
; i
++)
5627 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5632 create_at_file (argv
);
5635 for (i
= 0; i
< max
; i
++)
5637 store_arg (outfiles
[i
], 0, 0);
5642 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5647 this_is_library_file
= 1;
5651 this_is_linker_script
= 1;
5655 outfiles
[input_file_number
] = NULL
;
5659 this_is_output_file
= 1;
5664 unsigned int cur_index
= argbuf
.length ();
5665 /* Handle the {...} following the %W. */
5667 fatal_error (input_location
,
5668 "spec %qs has invalid %<%%W%c%>", spec
, *p
);
5669 p
= handle_braces (p
+ 1);
5673 /* If any args were output, mark the last one for deletion
5675 if (argbuf
.length () != cur_index
)
5676 record_temp_file (argbuf
.last (), 0, 1);
5680 /* %x{OPTION} records OPTION for %X to output. */
5688 /* Skip past the option value and make a copy. */
5690 fatal_error (input_location
,
5691 "spec %qs has invalid %<%%x%c%>", spec
, *p
);
5694 string
= save_string (p1
+ 1, p
- p1
- 2);
5696 /* See if we already recorded this option. */
5697 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5698 if (! strcmp (string
, opt
))
5704 /* This option is new; add it. */
5705 add_linker_option (string
, strlen (string
));
5710 /* Dump out the options accumulated previously using %x. */
5712 do_specs_vec (linker_options
);
5715 /* Dump out the options accumulated previously using -Wa,. */
5717 do_specs_vec (assembler_options
);
5720 /* Dump out the options accumulated previously using -Wp,. */
5722 do_specs_vec (preprocessor_options
);
5725 /* Here are digits and numbers that just process
5726 a certain constant string as a spec. */
5729 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5735 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5741 value
= do_spec_1 (asm_spec
, 0, NULL
);
5747 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5754 const char *const spec
5755 = (input_file_compiler
->cpp_spec
5756 ? input_file_compiler
->cpp_spec
5758 value
= do_spec_1 (spec
, 0, NULL
);
5765 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5771 value
= do_spec_1 (link_spec
, 0, NULL
);
5777 value
= do_spec_1 (lib_spec
, 0, NULL
);
5783 if (multilib_os_dir
== NULL
)
5784 obstack_1grow (&obstack
, '.');
5786 obstack_grow (&obstack
, multilib_os_dir
,
5787 strlen (multilib_os_dir
));
5791 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5797 /* We assume there is a directory
5798 separator at the end of this string. */
5799 if (target_system_root
)
5801 obstack_grow (&obstack
, target_system_root
,
5802 strlen (target_system_root
));
5803 if (target_sysroot_suffix
)
5804 obstack_grow (&obstack
, target_sysroot_suffix
,
5805 strlen (target_sysroot_suffix
));
5810 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5815 /* Here we define characters other than letters and digits. */
5818 p
= handle_braces (p
);
5824 p
= handle_spec_function (p
, NULL
);
5830 obstack_1grow (&obstack
, '%');
5837 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5839 suffix_subst
= save_string (p
- 1, len
+ 1);
5844 /* Henceforth ignore the option(s) matching the pattern
5850 int have_wildcard
= 0;
5855 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5857 switch_option
= SWITCH_IGNORE
;
5859 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5862 if (p
[len
-1] == '*')
5865 for (i
= 0; i
< n_switches
; i
++)
5866 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5867 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5869 switches
[i
].live_cond
|= switch_option
;
5870 /* User switch be validated from validate_all_switches.
5871 when the definition is seen from the spec file.
5872 If not defined anywhere, will be rejected. */
5873 if (switches
[i
].known
)
5874 switches
[i
].validated
= true;
5882 if (soft_matched_part
)
5884 if (soft_matched_part
[0])
5885 do_spec_1 (soft_matched_part
, 1, NULL
);
5886 /* Only insert a space after the substitution if it is at the
5887 end of the current sequence. So if:
5889 "%{foo=*:bar%*}%{foo=*:one%*two}"
5891 matches -foo=hello then it will produce:
5893 barhello onehellotwo
5895 if (*p
== 0 || *p
== '}')
5896 do_spec_1 (" ", 0, NULL
);
5899 /* Catch the case where a spec string contains something like
5900 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5901 hand side of the :. */
5902 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5905 /* Process a string found as the value of a spec given by name.
5906 This feature allows individual machine descriptions
5907 to add and use their own specs. */
5910 const char *name
= p
;
5911 struct spec_list
*sl
;
5914 /* The string after the S/P is the name of a spec that is to be
5916 while (*p
&& *p
!= ')')
5919 /* See if it's in the list. */
5920 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5921 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5923 name
= *(sl
->ptr_spec
);
5925 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
5933 value
= do_spec_1 (name
, 0, NULL
);
5938 /* Discard the closing paren. */
5945 error ("spec failure: unrecognized spec option %qc", c
);
5951 /* Backslash: treat next character as ordinary. */
5956 /* Ordinary character: put it into the current argument. */
5957 obstack_1grow (&obstack
, c
);
5961 /* End of string. If we are processing a spec function, we need to
5962 end any pending argument. */
5963 if (processing_spec_function
)
5969 /* Look up a spec function. */
5971 static const struct spec_function
*
5972 lookup_spec_function (const char *name
)
5974 const struct spec_function
*sf
;
5976 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5977 if (strcmp (sf
->name
, name
) == 0)
5983 /* Evaluate a spec function. */
5986 eval_spec_function (const char *func
, const char *args
)
5988 const struct spec_function
*sf
;
5989 const char *funcval
;
5991 /* Saved spec processing context. */
5992 vec
<const_char_p
> save_argbuf
;
5995 int save_delete_this_arg
;
5996 int save_this_is_output_file
;
5997 int save_this_is_library_file
;
5998 int save_input_from_pipe
;
5999 int save_this_is_linker_script
;
6000 const char *save_suffix_subst
;
6002 int save_growing_size
;
6003 void *save_growing_value
= NULL
;
6005 sf
= lookup_spec_function (func
);
6007 fatal_error (input_location
, "unknown spec function %qs", func
);
6009 /* Push the spec processing context. */
6010 save_argbuf
= argbuf
;
6012 save_arg_going
= arg_going
;
6013 save_delete_this_arg
= delete_this_arg
;
6014 save_this_is_output_file
= this_is_output_file
;
6015 save_this_is_library_file
= this_is_library_file
;
6016 save_this_is_linker_script
= this_is_linker_script
;
6017 save_input_from_pipe
= input_from_pipe
;
6018 save_suffix_subst
= suffix_subst
;
6020 /* If we have some object growing now, finalize it so the args and function
6021 eval proceed from a cleared context. This is needed to prevent the first
6022 constructed arg from mistakenly including the growing value. We'll push
6023 this value back on the obstack once the function evaluation is done, to
6024 restore a consistent processing context for our caller. This is fine as
6025 the address of growing objects isn't guaranteed to remain stable until
6026 they are finalized, and we expect this situation to be rare enough for
6027 the extra copy not to be an issue. */
6028 save_growing_size
= obstack_object_size (&obstack
);
6029 if (save_growing_size
> 0)
6030 save_growing_value
= obstack_finish (&obstack
);
6032 /* Create a new spec processing context, and build the function
6036 if (do_spec_2 (args
) < 0)
6037 fatal_error (input_location
, "error in args to spec function %qs", func
);
6039 /* argbuf_index is an index for the next argument to be inserted, and
6040 so contains the count of the args already inserted. */
6042 funcval
= (*sf
->func
) (argbuf
.length (),
6045 /* Pop the spec processing context. */
6047 argbuf
= save_argbuf
;
6049 arg_going
= save_arg_going
;
6050 delete_this_arg
= save_delete_this_arg
;
6051 this_is_output_file
= save_this_is_output_file
;
6052 this_is_library_file
= save_this_is_library_file
;
6053 this_is_linker_script
= save_this_is_linker_script
;
6054 input_from_pipe
= save_input_from_pipe
;
6055 suffix_subst
= save_suffix_subst
;
6057 if (save_growing_size
> 0)
6058 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
6063 /* Handle a spec function call of the form:
6067 ARGS is processed as a spec in a separate context and split into an
6068 argument vector in the normal fashion. The function returns a string
6069 containing a spec which we then process in the caller's context, or
6070 NULL if no processing is required.
6072 If RETVAL_NONNULL is not NULL, then store a bool whether function
6073 returned non-NULL. */
6076 handle_spec_function (const char *p
, bool *retval_nonnull
)
6079 const char *endp
, *funcval
;
6082 processing_spec_function
++;
6084 /* Get the function name. */
6085 for (endp
= p
; *endp
!= '\0'; endp
++)
6087 if (*endp
== '(') /* ) */
6089 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6090 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6091 fatal_error (input_location
, "malformed spec function name");
6093 if (*endp
!= '(') /* ) */
6094 fatal_error (input_location
, "no arguments for spec function");
6095 func
= save_string (p
, endp
- p
);
6098 /* Get the arguments. */
6099 for (count
= 0; *endp
!= '\0'; endp
++)
6108 else if (*endp
== '(') /* ) */
6113 fatal_error (input_location
, "malformed spec function arguments");
6114 args
= save_string (p
, endp
- p
);
6117 /* p now points to just past the end of the spec function expression. */
6119 funcval
= eval_spec_function (func
, args
);
6120 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6123 *retval_nonnull
= funcval
!= NULL
;
6128 processing_spec_function
--;
6133 /* Inline subroutine of handle_braces. Returns true if the current
6134 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6136 input_suffix_matches (const char *atom
, const char *end_atom
)
6138 return (input_suffix
6139 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6140 && input_suffix
[end_atom
- atom
] == '\0');
6143 /* Subroutine of handle_braces. Returns true if the current
6144 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6146 input_spec_matches (const char *atom
, const char *end_atom
)
6148 return (input_file_compiler
6149 && input_file_compiler
->suffix
6150 && input_file_compiler
->suffix
[0] != '\0'
6151 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6153 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6156 /* Subroutine of handle_braces. Returns true if a switch
6157 matching the atom bracketed by ATOM and END_ATOM appeared on the
6160 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6163 int len
= end_atom
- atom
;
6164 int plen
= starred
? len
: -1;
6166 for (i
= 0; i
< n_switches
; i
++)
6167 if (!strncmp (switches
[i
].part1
, atom
, len
)
6168 && (starred
|| switches
[i
].part1
[len
] == '\0')
6169 && check_live_switch (i
, plen
))
6172 /* Check if a switch with separated form matching the atom.
6173 We check -D and -U switches. */
6174 else if (switches
[i
].args
!= 0)
6176 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
6177 && *switches
[i
].part1
== atom
[0])
6179 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
6180 && (starred
|| (switches
[i
].part1
[1] == '\0'
6181 && switches
[i
].args
[0][len
- 1] == '\0'))
6182 && check_live_switch (i
, (starred
? 1 : -1)))
6190 /* Inline subroutine of handle_braces. Mark all of the switches which
6191 match ATOM (extends to END_ATOM; STARRED indicates whether there
6192 was a star after the atom) for later processing. */
6194 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6197 int len
= end_atom
- atom
;
6198 int plen
= starred
? len
: -1;
6200 for (i
= 0; i
< n_switches
; i
++)
6201 if (!strncmp (switches
[i
].part1
, atom
, len
)
6202 && (starred
|| switches
[i
].part1
[len
] == '\0')
6203 && check_live_switch (i
, plen
))
6204 switches
[i
].ordering
= 1;
6207 /* Inline subroutine of handle_braces. Process all the currently
6208 marked switches through give_switch, and clear the marks. */
6210 process_marked_switches (void)
6214 for (i
= 0; i
< n_switches
; i
++)
6215 if (switches
[i
].ordering
== 1)
6217 switches
[i
].ordering
= 0;
6222 /* Handle a %{ ... } construct. P points just inside the leading {.
6223 Returns a pointer one past the end of the brace block, or 0
6224 if we call do_spec_1 and that returns -1. */
6227 handle_braces (const char *p
)
6229 const char *atom
, *end_atom
;
6230 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6231 const char *orig
= p
;
6239 bool a_must_be_last
= false;
6240 bool ordered_set
= false;
6241 bool disjunct_set
= false;
6242 bool disj_matched
= false;
6243 bool disj_starred
= true;
6244 bool n_way_choice
= false;
6245 bool n_way_matched
= false;
6247 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6254 /* Scan one "atom" (S in the description above of %{}, possibly
6255 with '!', '.', '@', ',', or '*' modifiers). */
6257 a_is_suffix
= false;
6258 a_is_starred
= false;
6259 a_is_negated
= false;
6260 a_is_spectype
= false;
6264 p
++, a_is_negated
= true;
6267 if (*p
== '%' && p
[1] == ':')
6271 p
= handle_spec_function (p
+ 2, &a_matched
);
6276 p
++, a_is_suffix
= true;
6278 p
++, a_is_spectype
= true;
6281 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6282 || *p
== ',' || *p
== '.' || *p
== '@')
6287 p
++, a_is_starred
= 1;
6294 /* Substitute the switch(es) indicated by the current atom. */
6296 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6297 || a_is_spectype
|| atom
== end_atom
)
6300 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6303 process_marked_switches ();
6307 /* Substitute some text if the current atom appears as a switch
6309 disjunct_set
= true;
6313 if (atom
&& atom
== end_atom
)
6315 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6316 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6320 /* An empty term may appear as the last choice of an
6321 N-way choice set; it means "otherwise". */
6322 a_must_be_last
= true;
6323 disj_matched
= !n_way_matched
;
6324 disj_starred
= false;
6328 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6332 disj_starred
= false;
6334 /* Don't bother testing this atom if we already have a
6336 if (!disj_matched
&& !n_way_matched
)
6339 /* a_matched is already set by handle_spec_function. */;
6340 else if (a_is_suffix
)
6341 a_matched
= input_suffix_matches (atom
, end_atom
);
6342 else if (a_is_spectype
)
6343 a_matched
= input_spec_matches (atom
, end_atom
);
6345 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6347 if (a_matched
!= a_is_negated
)
6349 disj_matched
= true;
6351 d_end_atom
= end_atom
;
6358 /* Found the body, that is, the text to substitute if the
6359 current disjunction matches. */
6360 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6361 disj_matched
&& !n_way_matched
);
6365 /* If we have an N-way choice, reset state for the next
6369 n_way_choice
= true;
6370 n_way_matched
|= disj_matched
;
6371 disj_matched
= false;
6372 disj_starred
= true;
6373 d_atom
= d_end_atom
= NULL
;
6382 while (*p
++ != '}');
6387 fatal_error (input_location
, "braced spec %qs is invalid at %qc", orig
, *p
);
6392 /* Subroutine of handle_braces. Scan and process a brace substitution body
6393 (X in the description of %{} syntax). P points one past the colon;
6394 ATOM and END_ATOM bracket the first atom which was found to be true
6395 (present) in the current disjunction; STARRED indicates whether all
6396 the atoms in the current disjunction were starred (for syntax validation);
6397 MATCHED indicates whether the disjunction matched or not, and therefore
6398 whether or not the body is to be processed through do_spec_1 or just
6399 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6403 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6404 int starred
, int matched
)
6406 const char *body
, *end_body
;
6407 unsigned int nesting_level
;
6408 bool have_subst
= false;
6410 /* Locate the closing } or ;, honoring nested braces.
6411 Trim trailing whitespace. */
6420 if (!--nesting_level
)
6423 else if (*p
== ';' && nesting_level
== 1)
6425 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6427 else if (*p
== '\0')
6433 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6436 if (have_subst
&& !starred
)
6441 /* Copy the substitution body to permanent storage and execute it.
6442 If have_subst is false, this is a simple matter of running the
6443 body through do_spec_1... */
6444 char *string
= save_string (body
, end_body
- body
);
6447 if (do_spec_1 (string
, 0, NULL
) < 0)
6455 /* ... but if have_subst is true, we have to process the
6456 body once for each matching switch, with %* set to the
6457 variant part of the switch. */
6458 unsigned int hard_match_len
= end_atom
- atom
;
6461 for (i
= 0; i
< n_switches
; i
++)
6462 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6463 && check_live_switch (i
, hard_match_len
))
6465 if (do_spec_1 (string
, 0,
6466 &switches
[i
].part1
[hard_match_len
]) < 0)
6471 /* Pass any arguments this switch has. */
6473 suffix_subst
= NULL
;
6482 fatal_error (input_location
, "braced spec body %qs is invalid", body
);
6485 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6486 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6487 spec, or -1 if either exact match or %* is used.
6489 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
6490 whose value does not begin with "no-" is obsoleted by the same value
6491 with the "no-", similarly for a switch with the "no-" prefix. */
6494 check_live_switch (int switchnum
, int prefix_length
)
6496 const char *name
= switches
[switchnum
].part1
;
6499 /* If we already processed this switch and determined if it was
6500 live or not, return our past determination. */
6501 if (switches
[switchnum
].live_cond
!= 0)
6502 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6503 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6504 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6507 /* In the common case of {<at-most-one-letter>*}, a negating
6508 switch would always match, so ignore that case. We will just
6509 send the conflicting switches to the compiler phase. */
6510 if (prefix_length
>= 0 && prefix_length
<= 1)
6513 /* Now search for duplicate in a manner that depends on the name. */
6517 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6518 if (switches
[i
].part1
[0] == 'O')
6520 switches
[switchnum
].validated
= true;
6521 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6526 case 'W': case 'f': case 'm': case 'g':
6527 if (! strncmp (name
+ 1, "no-", 3))
6529 /* We have Xno-YYY, search for XYYY. */
6530 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6531 if (switches
[i
].part1
[0] == name
[0]
6532 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6534 /* --specs are validated with the validate_switches mechanism. */
6535 if (switches
[switchnum
].known
)
6536 switches
[switchnum
].validated
= true;
6537 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6543 /* We have XYYY, search for Xno-YYY. */
6544 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6545 if (switches
[i
].part1
[0] == name
[0]
6546 && switches
[i
].part1
[1] == 'n'
6547 && switches
[i
].part1
[2] == 'o'
6548 && switches
[i
].part1
[3] == '-'
6549 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6551 /* --specs are validated with the validate_switches mechanism. */
6552 if (switches
[switchnum
].known
)
6553 switches
[switchnum
].validated
= true;
6554 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6561 /* Otherwise the switch is live. */
6562 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6566 /* Pass a switch to the current accumulating command
6567 in the same form that we received it.
6568 SWITCHNUM identifies the switch; it is an index into
6569 the vector of switches gcc received, which is `switches'.
6570 This cannot fail since it never finishes a command line.
6572 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6575 give_switch (int switchnum
, int omit_first_word
)
6577 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6580 if (!omit_first_word
)
6582 do_spec_1 ("-", 0, NULL
);
6583 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6586 if (switches
[switchnum
].args
!= 0)
6589 for (p
= switches
[switchnum
].args
; *p
; p
++)
6591 const char *arg
= *p
;
6593 do_spec_1 (" ", 0, NULL
);
6596 unsigned length
= strlen (arg
);
6599 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6600 if (arg
[length
] == '.')
6602 (CONST_CAST (char *, arg
))[length
] = 0;
6606 do_spec_1 (arg
, 1, NULL
);
6608 (CONST_CAST (char *, arg
))[length
] = '.';
6609 do_spec_1 (suffix_subst
, 1, NULL
);
6612 do_spec_1 (arg
, 1, NULL
);
6616 do_spec_1 (" ", 0, NULL
);
6617 switches
[switchnum
].validated
= true;
6620 /* Print GCC configuration (e.g. version, thread model, target,
6621 configuration_arguments) to a given FILE. */
6624 print_configuration (FILE *file
)
6629 fnotice (file
, "Target: %s\n", spec_machine
);
6630 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
6632 #ifdef THREAD_MODEL_SPEC
6633 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6634 but there's no point in doing all this processing just to get
6635 thread_model back. */
6636 obstack_init (&obstack
);
6637 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6638 obstack_1grow (&obstack
, '\0');
6639 thrmod
= XOBFINISH (&obstack
, const char *);
6641 thrmod
= thread_model
;
6644 fnotice (file
, "Thread model: %s\n", thrmod
);
6646 /* compiler_version is truncated at the first space when initialized
6647 from version string, so truncate version_string at the first space
6648 before comparing. */
6649 for (n
= 0; version_string
[n
]; n
++)
6650 if (version_string
[n
] == ' ')
6653 if (! strncmp (version_string
, compiler_version
, n
)
6654 && compiler_version
[n
] == 0)
6655 fnotice (file
, "gcc version %s %s\n", version_string
,
6658 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n",
6659 version_string
, pkgversion_string
, compiler_version
);
6663 #define RETRY_ICE_ATTEMPTS 3
6665 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
6668 files_equal_p (char *file1
, char *file2
)
6670 struct stat st1
, st2
;
6673 const int bufsize
= 8192;
6674 char *buf
= XNEWVEC (char, bufsize
);
6676 fd1
= open (file1
, O_RDONLY
);
6677 fd2
= open (file2
, O_RDONLY
);
6679 if (fd1
< 0 || fd2
< 0)
6682 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
6685 if (st1
.st_size
!= st2
.st_size
)
6688 for (n
= st1
.st_size
; n
; n
-= len
)
6691 if ((int) len
> bufsize
/ 2)
6694 if (read (fd1
, buf
, len
) != (int) len
6695 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
6700 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
6717 /* Check that compiler's output doesn't differ across runs.
6718 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
6719 stdout and stderr for each compiler run. Return true if all of
6720 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
6723 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
6726 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
6728 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
6729 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
6731 fnotice (stderr
, "The bug is not reproducible, so it is"
6732 " likely a hardware or OS problem.\n");
6736 return i
== RETRY_ICE_ATTEMPTS
- 2;
6739 enum attempt_status
{
6740 ATTEMPT_STATUS_FAIL_TO_RUN
,
6741 ATTEMPT_STATUS_SUCCESS
,
6746 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
6747 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
6748 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
6749 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
6750 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
6751 ATTEMPT_STATUS_SUCCESS otherwise. */
6753 static enum attempt_status
6754 run_attempt (const char **new_argv
, const char *out_temp
,
6755 const char *err_temp
, int emit_system_info
, int append
)
6758 if (emit_system_info
)
6760 FILE *file_out
= fopen (err_temp
, "a");
6761 print_configuration (file_out
);
6762 fputs ("\n", file_out
);
6768 struct pex_obj
*pex
;
6770 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
6771 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
6774 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
6776 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
6778 fatal_error (input_location
, "pex_init failed: %m");
6780 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
6781 CONST_CAST2 (char *const *, const char **, &new_argv
[1]), out_temp
,
6786 fatal_error (input_location
, errmsg
);
6790 pfatal_with_name (errmsg
);
6794 if (!pex_get_status (pex
, 1, &exit_status
))
6797 switch (WEXITSTATUS (exit_status
))
6800 status
= ATTEMPT_STATUS_ICE
;
6803 case SUCCESS_EXIT_CODE
:
6804 status
= ATTEMPT_STATUS_SUCCESS
;
6816 /* This routine reads lines from IN file, adds C++ style comments
6817 at the begining of each line and writes result into OUT. */
6820 insert_comments (const char *file_in
, const char *file_out
)
6822 FILE *in
= fopen (file_in
, "rb");
6823 FILE *out
= fopen (file_out
, "wb");
6826 bool add_comment
= true;
6827 while (fgets (line
, sizeof (line
), in
))
6832 add_comment
= strchr (line
, '\n') != NULL
;
6839 /* This routine adds preprocessed source code into the given ERR_FILE.
6840 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
6841 add information in report file. RUN_ATTEMPT should return
6842 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
6845 do_report_bug (const char **new_argv
, const int nargs
,
6846 char **out_file
, char **err_file
)
6849 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
6852 write (fd
, "\n//", 3);
6853 for (i
= 0; i
< nargs
; i
++)
6856 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
6858 write (fd
, "\n\n", 2);
6860 new_argv
[nargs
] = "-E";
6861 new_argv
[nargs
+ 1] = NULL
;
6863 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
6865 if (status
== ATTEMPT_STATUS_SUCCESS
)
6867 fnotice (stderr
, "Preprocessed source stored into %s file,"
6868 " please attach this to your bugreport.\n", *out_file
);
6869 /* Make sure it is not deleted. */
6875 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
6876 containing GCC configuration, backtrace, compiler's command line options
6877 and preprocessed source code. */
6880 try_generate_repro (const char **argv
)
6882 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
6883 const char **new_argv
;
6884 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
6885 char **temp_stdout_files
= &temp_files
[0];
6886 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
6888 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
6891 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
6892 /* Only retry compiler ICEs, not preprocessor ones. */
6893 if (! strcmp (argv
[nargs
], "-E"))
6895 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
6902 /* If the compiler is going to output any time information,
6903 it might varry between invocations. */
6904 else if (! strcmp (argv
[nargs
], "-quiet"))
6906 else if (! strcmp (argv
[nargs
], "-ftime-report"))
6909 if (out_arg
== -1 || !quiet
)
6912 memset (temp_files
, '\0', sizeof (temp_files
));
6913 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
6914 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
6915 new_argv
[nargs
++] = "-frandom-seed=0";
6916 new_argv
[nargs
++] = "-fdump-noaddr";
6917 new_argv
[nargs
] = NULL
;
6918 if (new_argv
[out_arg
][2] == '\0')
6919 new_argv
[out_arg
+ 1] = "-";
6921 new_argv
[out_arg
] = "-o-";
6924 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
6926 int emit_system_info
= 0;
6928 temp_stdout_files
[attempt
] = make_temp_file (".out");
6929 temp_stderr_files
[attempt
] = make_temp_file (".err");
6931 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
6934 emit_system_info
= 1;
6937 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
6938 temp_stderr_files
[attempt
], emit_system_info
,
6941 if (status
!= ATTEMPT_STATUS_ICE
)
6943 fnotice (stderr
, "The bug is not reproducible, so it is"
6944 " likely a hardware or OS problem.\n");
6949 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
6953 /* Insert commented out backtrace into report file. */
6954 char **stderr_commented
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
6955 insert_comments (temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
6958 /* In final attempt we append compiler options and preprocesssed code to last
6959 generated .out file with configuration and backtrace. */
6960 char **output
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
6961 do_report_bug (new_argv
, nargs
, stderr_commented
, output
);
6965 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
6968 unlink (temp_stdout_files
[i
]);
6969 free (temp_stdout_files
[i
]);
6973 /* Search for a file named NAME trying various prefixes including the
6974 user's -B prefix and some standard ones.
6975 Return the absolute file name found. If nothing is found, return NAME. */
6978 find_file (const char *name
)
6980 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6981 return newname
? newname
: name
;
6984 /* Determine whether a directory exists. If LINKER, return 0 for
6985 certain fixed names not needed by the linker. */
6988 is_directory (const char *path1
, bool linker
)
6995 /* Ensure the string ends with "/.". The resulting path will be a
6996 directory even if the given path is a symbolic link. */
6997 len1
= strlen (path1
);
6998 path
= (char *) alloca (3 + len1
);
6999 memcpy (path
, path1
, len1
);
7001 if (!IS_DIR_SEPARATOR (cp
[-1]))
7002 *cp
++ = DIR_SEPARATOR
;
7006 /* Exclude directories that the linker is known to search. */
7008 && IS_DIR_SEPARATOR (path
[0])
7010 && filename_ncmp (path
+ 1, "lib", 3) == 0)
7012 && filename_ncmp (path
+ 1, "usr", 3) == 0
7013 && IS_DIR_SEPARATOR (path
[4])
7014 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
7017 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
7020 /* Set up the various global variables to indicate that we're processing
7021 the input file named FILENAME. */
7024 set_input (const char *filename
)
7028 gcc_input_filename
= filename
;
7029 input_filename_length
= strlen (gcc_input_filename
);
7030 input_basename
= lbasename (gcc_input_filename
);
7032 /* Find a suffix starting with the last period,
7033 and set basename_length to exclude that suffix. */
7034 basename_length
= strlen (input_basename
);
7035 suffixed_basename_length
= basename_length
;
7036 p
= input_basename
+ basename_length
;
7037 while (p
!= input_basename
&& *p
!= '.')
7039 if (*p
== '.' && p
!= input_basename
)
7041 basename_length
= p
- input_basename
;
7042 input_suffix
= p
+ 1;
7047 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
7048 we will need to do a stat on the gcc_input_filename. The
7049 INPUT_STAT_SET signals that the stat is needed. */
7053 /* On fatal signals, delete all the temporary files. */
7056 fatal_signal (int signum
)
7058 signal (signum
, SIG_DFL
);
7059 delete_failure_queue ();
7060 delete_temp_files ();
7061 /* Get the same signal again, this time not handled,
7062 so its normal effect occurs. */
7063 kill (getpid (), signum
);
7066 /* Compare the contents of the two files named CMPFILE[0] and
7067 CMPFILE[1]. Return zero if they're identical, nonzero
7071 compare_files (char *cmpfile
[])
7074 FILE *temp
[2] = { NULL
, NULL
};
7080 void *map
[2] = { NULL
, NULL
};
7082 for (i
= 0; i
< 2; i
++)
7086 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
7088 error ("%s: could not determine length of compare-debug file %s",
7089 gcc_input_filename
, cmpfile
[i
]);
7094 length
[i
] = st
.st_size
;
7097 if (!ret
&& length
[0] != length
[1])
7099 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
7104 for (i
= 0; i
< 2; i
++)
7106 int fd
= open (cmpfile
[i
], O_RDONLY
);
7109 error ("%s: could not open compare-debug file %s",
7110 gcc_input_filename
, cmpfile
[i
]);
7115 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
7118 if (map
[i
] == (void *) MAP_FAILED
)
7127 if (memcmp (map
[0], map
[1], length
[0]) != 0)
7129 error ("%s: -fcompare-debug failure", gcc_input_filename
);
7134 for (i
= 0; i
< 2; i
++)
7136 munmap ((caddr_t
) map
[i
], length
[i
]);
7145 for (i
= 0; i
< 2; i
++)
7147 temp
[i
] = fopen (cmpfile
[i
], "r");
7150 error ("%s: could not open compare-debug file %s",
7151 gcc_input_filename
, cmpfile
[i
]);
7157 if (!ret
&& temp
[0] && temp
[1])
7161 c0
= fgetc (temp
[0]);
7162 c1
= fgetc (temp
[1]);
7166 error ("%s: -fcompare-debug failure",
7167 gcc_input_filename
);
7176 for (i
= 1; i
>= 0; i
--)
7185 driver::driver (bool can_finalize
, bool debug
) :
7186 explicit_link_files (NULL
),
7187 decoded_options (NULL
),
7188 m_option_suggestions (NULL
)
7190 env
.init (can_finalize
, debug
);
7195 XDELETEVEC (explicit_link_files
);
7196 XDELETEVEC (decoded_options
);
7197 if (m_option_suggestions
)
7201 FOR_EACH_VEC_ELT (*m_option_suggestions
, i
, str
)
7203 delete m_option_suggestions
;
7207 /* driver::main is implemented as a series of driver:: method calls. */
7210 driver::main (int argc
, char **argv
)
7214 set_progname (argv
[0]);
7215 expand_at_files (&argc
, &argv
);
7216 decode_argv (argc
, const_cast <const char **> (argv
));
7217 global_initializations ();
7218 build_multilib_strings ();
7220 putenv_COLLECT_GCC (argv
[0]);
7221 maybe_putenv_COLLECT_LTO_WRAPPER ();
7222 maybe_putenv_OFFLOAD_TARGETS ();
7223 handle_unrecognized_options ();
7225 if (!maybe_print_and_exit ())
7228 early_exit
= prepare_infiles ();
7230 return get_exit_code ();
7232 do_spec_on_infiles ();
7233 maybe_run_linker (argv
[0]);
7235 return get_exit_code ();
7238 /* Locate the final component of argv[0] after any leading path, and set
7239 the program name accordingly. */
7242 driver::set_progname (const char *argv0
) const
7244 const char *p
= argv0
+ strlen (argv0
);
7245 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
7249 xmalloc_set_program_name (progname
);
7252 /* Expand any @ files within the command-line args,
7253 setting at_file_supplied if any were expanded. */
7256 driver::expand_at_files (int *argc
, char ***argv
) const
7258 char **old_argv
= *argv
;
7260 expandargv (argc
, argv
);
7262 /* Determine if any expansions were made. */
7263 if (*argv
!= old_argv
)
7264 at_file_supplied
= true;
7267 /* Decode the command-line arguments from argc/argv into the
7268 decoded_options array. */
7271 driver::decode_argv (int argc
, const char **argv
)
7273 /* Register the language-independent parameters. */
7274 global_init_params ();
7277 init_opts_obstack ();
7278 init_options_struct (&global_options
, &global_options_set
);
7280 decode_cmdline_options_to_array (argc
, argv
,
7282 &decoded_options
, &decoded_options_count
);
7285 /* Perform various initializations and setup. */
7288 driver::global_initializations ()
7290 /* Unlock the stdio streams. */
7291 unlock_std_streams ();
7293 gcc_init_libintl ();
7295 diagnostic_initialize (global_dc
, 0);
7296 diagnostic_color_init (global_dc
);
7298 #ifdef GCC_DRIVER_HOST_INITIALIZATION
7299 /* Perform host dependent initialization when needed. */
7300 GCC_DRIVER_HOST_INITIALIZATION
;
7303 if (atexit (delete_temp_files
) != 0)
7304 fatal_error (input_location
, "atexit failed");
7306 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
7307 signal (SIGINT
, fatal_signal
);
7309 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
7310 signal (SIGHUP
, fatal_signal
);
7312 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
7313 signal (SIGTERM
, fatal_signal
);
7315 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
7316 signal (SIGPIPE
, fatal_signal
);
7319 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
7320 receive the signal. A different setting is inheritable */
7321 signal (SIGCHLD
, SIG_DFL
);
7324 /* Parsing and gimplification sometimes need quite large stack.
7325 Increase stack size limits if possible. */
7326 stack_limit_increase (64 * 1024 * 1024);
7328 /* Allocate the argument vector. */
7331 obstack_init (&obstack
);
7334 /* Build multilib_select, et. al from the separate lines that make up each
7335 multilib selection. */
7338 driver::build_multilib_strings () const
7342 const char *const *q
= multilib_raw
;
7345 obstack_init (&multilib_obstack
);
7346 while ((p
= *q
++) != (char *) 0)
7347 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7349 obstack_1grow (&multilib_obstack
, 0);
7350 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
7352 q
= multilib_matches_raw
;
7353 while ((p
= *q
++) != (char *) 0)
7354 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7356 obstack_1grow (&multilib_obstack
, 0);
7357 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
7359 q
= multilib_exclusions_raw
;
7360 while ((p
= *q
++) != (char *) 0)
7361 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7363 obstack_1grow (&multilib_obstack
, 0);
7364 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
7366 q
= multilib_reuse_raw
;
7367 while ((p
= *q
++) != (char *) 0)
7368 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7370 obstack_1grow (&multilib_obstack
, 0);
7371 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
7374 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
7377 obstack_1grow (&multilib_obstack
, ' ');
7378 obstack_grow (&multilib_obstack
,
7379 multilib_defaults_raw
[i
],
7380 strlen (multilib_defaults_raw
[i
]));
7384 obstack_1grow (&multilib_obstack
, 0);
7385 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
7389 /* Set up the spec-handling machinery. */
7392 driver::set_up_specs () const
7394 const char *spec_machine_suffix
;
7398 #ifdef INIT_ENVIRONMENT
7399 /* Set up any other necessary machine specific environment variables. */
7400 xputenv (INIT_ENVIRONMENT
);
7403 /* Make a table of what switches there are (switches, n_switches).
7404 Make a table of specified input files (infiles, n_infiles).
7405 Decode switches that are handled locally. */
7407 process_command (decoded_options_count
, decoded_options
);
7409 /* Initialize the vector of specs to just the default.
7410 This means one element containing 0s, as a terminator. */
7412 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
7413 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
7414 n_compilers
= n_default_compilers
;
7416 /* Read specs from a file if there is one. */
7418 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
7419 accel_dir_suffix
, dir_separator_str
, NULL
);
7420 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
7422 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
7423 /* Read the specs file unless it is a default one. */
7424 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
7425 read_specs (specs_file
, true, false);
7429 #ifdef ACCEL_COMPILER
7430 spec_machine_suffix
= machine_suffix
;
7432 spec_machine_suffix
= just_machine_suffix
;
7435 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
7436 for any override of as, ld and libraries. */
7437 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
7438 + strlen (spec_machine_suffix
) + sizeof ("specs"));
7439 strcpy (specs_file
, standard_exec_prefix
);
7440 strcat (specs_file
, spec_machine_suffix
);
7441 strcat (specs_file
, "specs");
7442 if (access (specs_file
, R_OK
) == 0)
7443 read_specs (specs_file
, true, false);
7445 /* Process any configure-time defaults specified for the command line
7446 options, via OPTION_DEFAULT_SPECS. */
7447 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
7448 do_option_spec (option_default_specs
[i
].name
,
7449 option_default_specs
[i
].spec
);
7451 /* Process DRIVER_SELF_SPECS, adding any new options to the end
7452 of the command line. */
7454 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
7455 do_self_spec (driver_self_specs
[i
]);
7457 /* If not cross-compiling, look for executables in the standard
7459 if (*cross_compile
== '0')
7461 if (*md_exec_prefix
)
7463 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
7464 PREFIX_PRIORITY_LAST
, 0, 0);
7468 /* Process sysroot_suffix_spec. */
7469 if (*sysroot_suffix_spec
!= 0
7470 && !no_sysroot_suffix
7471 && do_spec_2 (sysroot_suffix_spec
) == 0)
7473 if (argbuf
.length () > 1)
7474 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
7475 else if (argbuf
.length () == 1)
7476 target_sysroot_suffix
= xstrdup (argbuf
.last ());
7479 #ifdef HAVE_LD_SYSROOT
7480 /* Pass the --sysroot option to the linker, if it supports that. If
7481 there is a sysroot_suffix_spec, it has already been processed by
7482 this point, so target_system_root really is the system root we
7484 if (target_system_root
)
7486 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7487 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
7488 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
7492 /* Process sysroot_hdrs_suffix_spec. */
7493 if (*sysroot_hdrs_suffix_spec
!= 0
7494 && !no_sysroot_suffix
7495 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
7497 if (argbuf
.length () > 1)
7498 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7499 else if (argbuf
.length () == 1)
7500 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
7503 /* Look for startfiles in the standard places. */
7504 if (*startfile_prefix_spec
!= 0
7505 && do_spec_2 (startfile_prefix_spec
) == 0
7506 && do_spec_1 (" ", 0, NULL
) == 0)
7510 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
7511 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
7512 PREFIX_PRIORITY_LAST
, 0, 1);
7514 /* We should eventually get rid of all these and stick to
7515 startfile_prefix_spec exclusively. */
7516 else if (*cross_compile
== '0' || target_system_root
)
7518 if (*md_startfile_prefix
)
7519 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7520 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7522 if (*md_startfile_prefix_1
)
7523 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7524 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7526 /* If standard_startfile_prefix is relative, base it on
7527 standard_exec_prefix. This lets us move the installed tree
7528 as a unit. If GCC_EXEC_PREFIX is defined, base
7529 standard_startfile_prefix on that as well.
7531 If the prefix is relative, only search it for native compilers;
7532 otherwise we will search a directory containing host libraries. */
7533 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7534 add_sysrooted_prefix (&startfile_prefixes
,
7535 standard_startfile_prefix
, "BINUTILS",
7536 PREFIX_PRIORITY_LAST
, 0, 1);
7537 else if (*cross_compile
== '0')
7539 add_prefix (&startfile_prefixes
,
7540 concat (gcc_exec_prefix
7541 ? gcc_exec_prefix
: standard_exec_prefix
,
7543 standard_startfile_prefix
, NULL
),
7544 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7547 /* Sysrooted prefixes are relocated because target_system_root is
7548 also relocated by gcc_exec_prefix. */
7549 if (*standard_startfile_prefix_1
)
7550 add_sysrooted_prefix (&startfile_prefixes
,
7551 standard_startfile_prefix_1
, "BINUTILS",
7552 PREFIX_PRIORITY_LAST
, 0, 1);
7553 if (*standard_startfile_prefix_2
)
7554 add_sysrooted_prefix (&startfile_prefixes
,
7555 standard_startfile_prefix_2
, "BINUTILS",
7556 PREFIX_PRIORITY_LAST
, 0, 1);
7559 /* Process any user specified specs in the order given on the command
7561 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7563 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7565 read_specs (filename
? filename
: uptr
->filename
, false, true);
7568 /* Process any user self specs. */
7570 struct spec_list
*sl
;
7571 for (sl
= specs
; sl
; sl
= sl
->next
)
7572 if (sl
->name_len
== sizeof "self_spec" - 1
7573 && !strcmp (sl
->name
, "self_spec"))
7574 do_self_spec (*sl
->ptr_spec
);
7579 enum save_temps save
;
7581 if (!compare_debug_second
)
7583 n_switches_debug_check
[1] = n_switches
;
7584 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7585 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
7588 do_self_spec ("%:compare-debug-self-opt()");
7589 n_switches_debug_check
[0] = n_switches
;
7590 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
7591 switches_debug_check
[0] = switches
;
7593 n_switches
= n_switches_debug_check
[1];
7594 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7595 switches
= switches_debug_check
[1];
7598 /* Avoid crash when computing %j in this early. */
7599 save
= save_temps_flag
;
7600 save_temps_flag
= SAVE_TEMPS_NONE
;
7602 compare_debug
= -compare_debug
;
7603 do_self_spec ("%:compare-debug-self-opt()");
7605 save_temps_flag
= save
;
7607 if (!compare_debug_second
)
7609 n_switches_debug_check
[1] = n_switches
;
7610 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7611 switches_debug_check
[1] = switches
;
7612 compare_debug
= -compare_debug
;
7613 n_switches
= n_switches_debug_check
[0];
7614 n_switches_alloc
= n_switches_debug_check
[0];
7615 switches
= switches_debug_check
[0];
7620 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7621 if (gcc_exec_prefix
)
7622 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
7623 dir_separator_str
, spec_version
,
7624 accel_dir_suffix
, dir_separator_str
, NULL
);
7626 /* Now we have the specs.
7627 Set the `valid' bits for switches that match anything in any spec. */
7629 validate_all_switches ();
7631 /* Now that we have the switches and the specs, set
7632 the subdirectory based on the options. */
7633 set_multilib_dir ();
7636 /* Set up to remember the pathname of gcc and any options
7637 needed for collect. We use argv[0] instead of progname because
7638 we need the complete pathname. */
7641 driver::putenv_COLLECT_GCC (const char *argv0
) const
7643 obstack_init (&collect_obstack
);
7644 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7645 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
7646 xputenv (XOBFINISH (&collect_obstack
, char *));
7649 /* Set up to remember the pathname of the lto wrapper. */
7652 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
7654 char *lto_wrapper_file
;
7657 lto_wrapper_file
= NULL
;
7659 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
7661 if (lto_wrapper_file
)
7663 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
7664 lto_wrapper_spec
= lto_wrapper_file
;
7665 obstack_init (&collect_obstack
);
7666 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7667 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7668 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7669 strlen (lto_wrapper_spec
) + 1);
7670 xputenv (XOBFINISH (&collect_obstack
, char *));
7675 /* Set up to remember the names of offload targets. */
7678 driver::maybe_putenv_OFFLOAD_TARGETS () const
7680 if (offload_targets
&& offload_targets
[0] != '\0')
7682 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
7683 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
7684 obstack_grow (&collect_obstack
, offload_targets
,
7685 strlen (offload_targets
) + 1);
7686 xputenv (XOBFINISH (&collect_obstack
, char *));
7689 free (offload_targets
);
7690 offload_targets
= NULL
;
7693 /* Helper function for driver::suggest_option. Populate
7694 m_option_suggestions with candidate strings for misspelled options.
7695 The strings will be freed by the driver's dtor. */
7698 driver::build_option_suggestions (void)
7700 gcc_assert (m_option_suggestions
== NULL
);
7701 m_option_suggestions
= new auto_vec
<char *> ();
7703 /* We build a vec of m_option_suggestions, using add_misspelling_candidates
7704 to add copies of strings, without a leading dash. */
7706 for (unsigned int i
= 0; i
< cl_options_count
; i
++)
7708 const struct cl_option
*option
= &cl_options
[i
];
7709 const char *opt_text
= option
->opt_text
;
7713 if (option
->var_type
== CLVC_ENUM
)
7715 const struct cl_enum
*e
= &cl_enums
[option
->var_enum
];
7716 for (unsigned j
= 0; e
->values
[j
].arg
!= NULL
; j
++)
7718 char *with_arg
= concat (opt_text
, e
->values
[j
].arg
, NULL
);
7719 add_misspelling_candidates (m_option_suggestions
, option
,
7725 add_misspelling_candidates (m_option_suggestions
, option
,
7729 case OPT_fsanitize_
:
7730 case OPT_fsanitize_recover_
:
7731 /* -fsanitize= and -fsanitize-recover= can take
7732 a comma-separated list of arguments. Given that combinations
7733 are supported, we can't add all potential candidates to the
7734 vec, but if we at least add them individually without commas,
7735 we should do a better job e.g. correcting
7738 "-fsanitize=address"
7739 rather than to "-Wframe-address" (PR driver/69265). */
7741 for (int j
= 0; sanitizer_opts
[j
].name
!= NULL
; ++j
)
7743 struct cl_option optb
;
7744 /* -fsanitize=all is not valid, only -fno-sanitize=all.
7745 So don't register the positive misspelling candidates
7747 if (sanitizer_opts
[j
].flag
== ~0U && i
== OPT_fsanitize_
)
7750 optb
.opt_text
= opt_text
= "-fno-sanitize=";
7751 optb
.cl_reject_negative
= true;
7754 /* Get one arg at a time e.g. "-fsanitize=address". */
7755 char *with_arg
= concat (opt_text
,
7756 sanitizer_opts
[j
].name
,
7758 /* Add with_arg and all of its variant spellings e.g.
7759 "-fno-sanitize=address" to candidates (albeit without
7761 add_misspelling_candidates (m_option_suggestions
, option
,
7771 /* Helper function for driver::handle_unrecognized_options.
7773 Given an unrecognized option BAD_OPT (without the leading dash),
7774 locate the closest reasonable matching option (again, without the
7775 leading dash), or NULL.
7777 The returned string is owned by the driver instance. */
7780 driver::suggest_option (const char *bad_opt
)
7782 /* Lazily populate m_option_suggestions. */
7783 if (!m_option_suggestions
)
7784 build_option_suggestions ();
7785 gcc_assert (m_option_suggestions
);
7787 /* "m_option_suggestions" is now populated. Use it. */
7788 return find_closest_string
7790 (auto_vec
<const char *> *) m_option_suggestions
);
7793 /* Reject switches that no pass was interested in. */
7796 driver::handle_unrecognized_options ()
7798 for (size_t i
= 0; (int) i
< n_switches
; i
++)
7799 if (! switches
[i
].validated
)
7801 const char *hint
= suggest_option (switches
[i
].part1
);
7803 error ("unrecognized command line option %<-%s%>;"
7804 " did you mean %<-%s%>?",
7805 switches
[i
].part1
, hint
);
7807 error ("unrecognized command line option %<-%s%>",
7812 /* Handle the various -print-* options, returning 0 if the driver
7813 should exit, or nonzero if the driver should continue. */
7816 driver::maybe_print_and_exit () const
7818 if (print_search_dirs
)
7820 printf (_("install: %s%s\n"),
7821 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7822 gcc_exec_prefix
? "" : machine_suffix
);
7823 printf (_("programs: %s\n"),
7824 build_search_list (&exec_prefixes
, "", false, false));
7825 printf (_("libraries: %s\n"),
7826 build_search_list (&startfile_prefixes
, "", false, true));
7830 if (print_file_name
)
7832 printf ("%s\n", find_file (print_file_name
));
7836 if (print_prog_name
)
7838 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
7840 /* Append USE_LD to the default linker. */
7841 #ifdef DEFAULT_LINKER
7843 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
7844 int len
= (sizeof (DEFAULT_LINKER
)
7845 - sizeof (HOST_EXECUTABLE_SUFFIX
));
7849 char *default_linker
= xstrdup (DEFAULT_LINKER
);
7850 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
7851 HOST_EXECUTABLE_SUFFIX. */
7852 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
7854 default_linker
[len
] = '\0';
7855 ld
= concat (default_linker
, use_ld
,
7856 HOST_EXECUTABLE_SUFFIX
, NULL
);
7861 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
7862 if (access (ld
, X_OK
) == 0)
7864 printf ("%s\n", ld
);
7868 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
7870 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7871 printf ("%s\n", (newname
? newname
: print_prog_name
));
7875 if (print_multi_lib
)
7877 print_multilib_info ();
7881 if (print_multi_directory
)
7883 if (multilib_dir
== NULL
)
7886 printf ("%s\n", multilib_dir
);
7890 if (print_multiarch
)
7892 if (multiarch_dir
== NULL
)
7895 printf ("%s\n", multiarch_dir
);
7901 if (target_system_root
)
7903 if (target_sysroot_suffix
)
7904 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7906 printf ("%s\n", target_system_root
);
7911 if (print_multi_os_directory
)
7913 if (multilib_os_dir
== NULL
)
7916 printf ("%s\n", multilib_os_dir
);
7920 if (print_sysroot_headers_suffix
)
7922 if (*sysroot_hdrs_suffix_spec
)
7924 printf("%s\n", (target_sysroot_hdrs_suffix
7925 ? target_sysroot_hdrs_suffix
7930 /* The error status indicates that only one set of fixed
7931 headers should be built. */
7932 fatal_error (input_location
,
7933 "not configured with sysroot headers suffix");
7936 if (print_help_list
)
7942 printf (_("\nFor bug reporting instructions, please see:\n"));
7943 printf ("%s.\n", bug_report_url
);
7948 /* We do not exit here. Instead we have created a fake input file
7949 called 'help-dummy' which needs to be compiled, and we pass this
7950 on the various sub-processes, along with the --help switch.
7951 Ensure their output appears after ours. */
7952 fputc ('\n', stdout
);
7958 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
7960 printf ("Copyright %s 2017 Free Software Foundation, Inc.\n",
7962 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7963 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7968 /* We do not exit here. We use the same mechanism of --help to print
7969 the version of the sub-processes. */
7970 fputc ('\n', stdout
);
7976 print_configuration (stderr
);
7984 /* Figure out what to do with each input file.
7985 Return true if we need to exit early from "main", false otherwise. */
7988 driver::prepare_infiles ()
7991 int lang_n_infiles
= 0;
7993 if (n_infiles
== added_libraries
)
7994 fatal_error (input_location
, "no input files");
7997 /* Early exit needed from main. */
8000 /* Make a place to record the compiler output file names
8001 that correspond to the input files. */
8004 i
+= lang_specific_extra_outfiles
;
8005 outfiles
= XCNEWVEC (const char *, i
);
8007 /* Record which files were specified explicitly as link input. */
8009 explicit_link_files
= XCNEWVEC (char, n_infiles
);
8011 combine_inputs
= have_o
|| flag_wpa
;
8013 for (i
= 0; (int) i
< n_infiles
; i
++)
8015 const char *name
= infiles
[i
].name
;
8016 struct compiler
*compiler
= lookup_compiler (name
,
8018 infiles
[i
].language
);
8020 if (compiler
&& !(compiler
->combinable
))
8021 combine_inputs
= false;
8023 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
8024 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
8025 infiles
[i
].incompiler
= compiler
;
8029 input_file_compiler
= compiler
;
8030 infiles
[i
].incompiler
= compiler
;
8034 /* Since there is no compiler for this input file, assume it is a
8036 explicit_link_files
[i
] = 1;
8037 infiles
[i
].incompiler
= NULL
;
8039 infiles
[i
].compiled
= false;
8040 infiles
[i
].preprocessed
= false;
8043 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
8044 fatal_error (input_location
,
8045 "cannot specify -o with -c, -S or -E with multiple files");
8047 /* No early exit needed from main; we can continue. */
8051 /* Run the spec machinery on each input file. */
8054 driver::do_spec_on_infiles () const
8058 for (i
= 0; (int) i
< n_infiles
; i
++)
8060 int this_file_error
= 0;
8062 /* Tell do_spec what to substitute for %i. */
8064 input_file_number
= i
;
8065 set_input (infiles
[i
].name
);
8067 if (infiles
[i
].compiled
)
8070 /* Use the same thing in %o, unless cp->spec says otherwise. */
8072 outfiles
[i
] = gcc_input_filename
;
8074 /* Figure out which compiler from the file's suffix. */
8077 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
8078 infiles
[i
].language
);
8080 if (input_file_compiler
)
8082 /* Ok, we found an applicable compiler. Run its spec. */
8084 if (input_file_compiler
->spec
[0] == '#')
8086 error ("%s: %s compiler not installed on this system",
8087 gcc_input_filename
, &input_file_compiler
->spec
[1]);
8088 this_file_error
= 1;
8096 free (debug_check_temp_file
[0]);
8097 debug_check_temp_file
[0] = NULL
;
8099 free (debug_check_temp_file
[1]);
8100 debug_check_temp_file
[1] = NULL
;
8103 value
= do_spec (input_file_compiler
->spec
);
8104 infiles
[i
].compiled
= true;
8106 this_file_error
= 1;
8107 else if (compare_debug
&& debug_check_temp_file
[0])
8110 inform (0, "recompiling with -fcompare-debug");
8112 compare_debug
= -compare_debug
;
8113 n_switches
= n_switches_debug_check
[1];
8114 n_switches_alloc
= n_switches_alloc_debug_check
[1];
8115 switches
= switches_debug_check
[1];
8117 value
= do_spec (input_file_compiler
->spec
);
8119 compare_debug
= -compare_debug
;
8120 n_switches
= n_switches_debug_check
[0];
8121 n_switches_alloc
= n_switches_alloc_debug_check
[0];
8122 switches
= switches_debug_check
[0];
8126 error ("during -fcompare-debug recompilation");
8127 this_file_error
= 1;
8130 gcc_assert (debug_check_temp_file
[1]
8131 && filename_cmp (debug_check_temp_file
[0],
8132 debug_check_temp_file
[1]));
8135 inform (0, "comparing final insns dumps");
8137 if (compare_files (debug_check_temp_file
))
8138 this_file_error
= 1;
8143 free (debug_check_temp_file
[0]);
8144 debug_check_temp_file
[0] = NULL
;
8146 free (debug_check_temp_file
[1]);
8147 debug_check_temp_file
[1] = NULL
;
8152 /* If this file's name does not contain a recognized suffix,
8153 record it as explicit linker input. */
8156 explicit_link_files
[i
] = 1;
8158 /* Clear the delete-on-failure queue, deleting the files in it
8159 if this compilation failed. */
8161 if (this_file_error
)
8163 delete_failure_queue ();
8166 /* If this compilation succeeded, don't delete those files later. */
8167 clear_failure_queue ();
8170 /* Reset the input file name to the first compile/object file name, for use
8171 with %b in LINK_SPEC. We use the first input file that we can find
8172 a compiler to compile it instead of using infiles.language since for
8173 languages other than C we use aliases that we then lookup later. */
8178 for (i
= 0; i
< n_infiles
; i
++)
8179 if (infiles
[i
].incompiler
8180 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
8182 set_input (infiles
[i
].name
);
8189 /* Make sure INPUT_FILE_NUMBER points to first available open
8191 input_file_number
= n_infiles
;
8192 if (lang_specific_pre_link ())
8197 /* If we have to run the linker, do it now. */
8200 driver::maybe_run_linker (const char *argv0
) const
8203 int linker_was_run
= 0;
8204 int num_linker_inputs
;
8206 /* Determine if there are any linker input files. */
8207 num_linker_inputs
= 0;
8208 for (i
= 0; (int) i
< n_infiles
; i
++)
8209 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
8210 num_linker_inputs
++;
8212 /* Run ld to link all the compiler output files. */
8214 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
8216 int tmp
= execution_count
;
8220 #if HAVE_LTO_PLUGIN > 0
8221 #if HAVE_LTO_PLUGIN == 2
8222 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
8224 const char *fuse_linker_plugin
= "fuse-linker-plugin";
8228 /* We'll use ld if we can't find collect2. */
8229 if (! strcmp (linker_name_spec
, "collect2"))
8231 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
8233 linker_name_spec
= "ld";
8236 #if HAVE_LTO_PLUGIN > 0
8237 #if HAVE_LTO_PLUGIN == 2
8238 if (!switch_matches (fno_use_linker_plugin
,
8239 fno_use_linker_plugin
8240 + strlen (fno_use_linker_plugin
), 0))
8242 if (switch_matches (fuse_linker_plugin
,
8244 + strlen (fuse_linker_plugin
), 0))
8247 char *temp_spec
= find_a_file (&exec_prefixes
,
8248 LTOPLUGINSONAME
, R_OK
,
8251 fatal_error (input_location
,
8252 "-fuse-linker-plugin, but %s not found",
8254 linker_plugin_file_spec
= convert_white_space (temp_spec
);
8257 lto_gcc_spec
= argv0
;
8260 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
8262 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
8263 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
8265 if (print_subprocess_help
== 1)
8267 printf (_("\nLinker options\n==============\n\n"));
8268 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
8269 " to the linker.\n\n"));
8272 int value
= do_spec (link_command_spec
);
8275 linker_was_run
= (tmp
!= execution_count
);
8278 /* If options said don't run linker,
8279 complain about input files to be given to the linker. */
8281 if (! linker_was_run
&& !seen_error ())
8282 for (i
= 0; (int) i
< n_infiles
; i
++)
8283 if (explicit_link_files
[i
]
8284 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
8285 warning (0, "%s: linker input file unused because linking not done",
8289 /* The end of "main". */
8292 driver::final_actions () const
8294 /* Delete some or all of the temporary files we made. */
8297 delete_failure_queue ();
8298 delete_temp_files ();
8300 if (print_help_list
)
8302 printf (("\nFor bug reporting instructions, please see:\n"));
8303 printf ("%s\n", bug_report_url
);
8307 /* Determine what the exit code of the driver should be. */
8310 driver::get_exit_code () const
8312 return (signal_count
!= 0 ? 2
8313 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
8317 /* Find the proper compilation spec for the file name NAME,
8318 whose length is LENGTH. LANGUAGE is the specified language,
8319 or 0 if this file is to be passed to the linker. */
8321 static struct compiler
*
8322 lookup_compiler (const char *name
, size_t length
, const char *language
)
8324 struct compiler
*cp
;
8326 /* If this was specified by the user to be a linker input, indicate that. */
8327 if (language
!= 0 && language
[0] == '*')
8330 /* Otherwise, look for the language, if one is spec'd. */
8333 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8334 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
8336 if (name
!= NULL
&& strcmp (name
, "-") == 0
8337 && (strcmp (cp
->suffix
, "@c-header") == 0
8338 || strcmp (cp
->suffix
, "@c++-header") == 0)
8340 fatal_error (input_location
,
8341 "cannot use %<-%> as input filename for a "
8342 "precompiled header");
8347 error ("language %s not recognized", language
);
8351 /* Look for a suffix. */
8352 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8354 if (/* The suffix `-' matches only the file name `-'. */
8355 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8356 || (strlen (cp
->suffix
) < length
8357 /* See if the suffix matches the end of NAME. */
8358 && !strcmp (cp
->suffix
,
8359 name
+ length
- strlen (cp
->suffix
))
8364 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
8365 /* Look again, but case-insensitively this time. */
8367 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8369 if (/* The suffix `-' matches only the file name `-'. */
8370 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8371 || (strlen (cp
->suffix
) < length
8372 /* See if the suffix matches the end of NAME. */
8373 && ((!strcmp (cp
->suffix
,
8374 name
+ length
- strlen (cp
->suffix
))
8375 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
8376 && !strcasecmp (cp
->suffix
,
8377 name
+ length
- strlen (cp
->suffix
)))
8383 if (cp
>= compilers
)
8385 if (cp
->spec
[0] != '@')
8386 /* A non-alias entry: return it. */
8389 /* An alias entry maps a suffix to a language.
8390 Search for the language; pass 0 for NAME and LENGTH
8391 to avoid infinite recursion if language not found. */
8392 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
8398 save_string (const char *s
, int len
)
8400 char *result
= XNEWVEC (char, len
+ 1);
8402 gcc_checking_assert (strlen (s
) >= (unsigned int) len
);
8403 memcpy (result
, s
, len
);
8409 pfatal_with_name (const char *name
)
8411 perror_with_name (name
);
8412 delete_temp_files ();
8417 perror_with_name (const char *name
)
8419 error ("%s: %m", name
);
8423 validate_switches_from_spec (const char *spec
, bool user
)
8425 const char *p
= spec
;
8428 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
8429 /* We have a switch spec. */
8430 p
= validate_switches (p
+ 1, user
);
8434 validate_all_switches (void)
8436 struct compiler
*comp
;
8437 struct spec_list
*spec
;
8439 for (comp
= compilers
; comp
->spec
; comp
++)
8440 validate_switches_from_spec (comp
->spec
, false);
8442 /* Look through the linked list of specs read from the specs file. */
8443 for (spec
= specs
; spec
; spec
= spec
->next
)
8444 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
8446 validate_switches_from_spec (link_command_spec
, false);
8449 /* Look at the switch-name that comes after START
8450 and mark as valid all supplied switches that match it. */
8453 validate_switches (const char *start
, bool user_spec
)
8455 const char *p
= start
;
8459 bool suffix
= false;
8460 bool starred
= false;
8462 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
8471 if (*p
== '.' || *p
== ',')
8475 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
8476 || *p
== ',' || *p
== '.' || *p
== '@')
8481 starred
= true, p
++;
8487 /* Mark all matching switches as valid. */
8488 for (i
= 0; i
< n_switches
; i
++)
8489 if (!strncmp (switches
[i
].part1
, atom
, len
)
8490 && (starred
|| switches
[i
].part1
[len
] == '\0')
8491 && (switches
[i
].known
|| user_spec
))
8492 switches
[i
].validated
= true;
8496 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
8499 if (*p
&& p
[-1] == ':')
8501 while (*p
&& *p
!= ';' && *p
!= '}')
8506 if (*p
== '{' || *p
== '<')
8507 p
= validate_switches (p
+1, user_spec
);
8508 else if (p
[0] == 'W' && p
[1] == '{')
8509 p
= validate_switches (p
+2, user_spec
);
8516 if (*p
&& p
[-1] == ';')
8530 static struct mdswitchstr
*mdswitches
;
8531 static int n_mdswitches
;
8533 /* Check whether a particular argument was used. The first time we
8534 canonicalize the switches to keep only the ones we care about. */
8539 int operator () (const char *p
, int len
);
8546 const char *replace
;
8551 mswitchstr
*mswitches
;
8556 used_arg_t used_arg
;
8559 used_arg_t::operator () (const char *p
, int len
)
8565 struct mswitchstr
*matches
;
8569 /* Break multilib_matches into the component strings of string
8570 and replacement string. */
8571 for (q
= multilib_matches
; *q
!= '\0'; q
++)
8576 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
8578 q
= multilib_matches
;
8587 fatal_error (input_location
, "multilib spec %qs is invalid",
8592 matches
[i
].len
= q
- matches
[i
].str
;
8594 matches
[i
].replace
= ++q
;
8595 while (*q
!= ';' && *q
!= '\0')
8598 goto invalid_matches
;
8601 matches
[i
].rep_len
= q
- matches
[i
].replace
;
8607 /* Now build a list of the replacement string for switches that we care
8608 about. Make sure we allocate at least one entry. This prevents
8609 xmalloc from calling fatal, and prevents us from re-executing this
8612 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
8613 for (i
= 0; i
< n_switches
; i
++)
8614 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
8616 int xlen
= strlen (switches
[i
].part1
);
8617 for (j
= 0; j
< cnt
; j
++)
8618 if (xlen
== matches
[j
].len
8619 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
8621 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
8622 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
8623 mswitches
[n_mswitches
].replace
= (char *) 0;
8624 mswitches
[n_mswitches
].rep_len
= 0;
8630 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
8631 on the command line nor any options mutually incompatible with
8633 for (i
= 0; i
< n_mdswitches
; i
++)
8637 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
8643 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
8644 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
8646 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8653 if (*q
!= ' ' && *q
!= '\0')
8655 while (*r
!= ' ' && *r
!= '\0')
8658 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8661 if (used_arg (r
, q
- r
))
8666 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
8667 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
8668 mswitches
[n_mswitches
].replace
= (char *) 0;
8669 mswitches
[n_mswitches
].rep_len
= 0;
8682 for (i
= 0; i
< n_mswitches
; i
++)
8683 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8689 void used_arg_t::finalize ()
8691 XDELETEVEC (mswitches
);
8698 default_arg (const char *p
, int len
)
8702 for (i
= 0; i
< n_mdswitches
; i
++)
8703 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8709 /* Work out the subdirectory to use based on the options. The format of
8710 multilib_select is a list of elements. Each element is a subdirectory
8711 name followed by a list of options followed by a semicolon. The format
8712 of multilib_exclusions is the same, but without the preceding
8713 directory. First gcc will check the exclusions, if none of the options
8714 beginning with an exclamation point are present, and all of the other
8715 options are present, then we will ignore this completely. Passing
8716 that, gcc will consider each multilib_select in turn using the same
8717 rules for matching the options. If a match is found, that subdirectory
8719 A subdirectory name is optionally followed by a colon and the corresponding
8723 set_multilib_dir (void)
8726 unsigned int this_path_len
;
8727 const char *this_path
, *this_arg
;
8728 const char *start
, *end
;
8730 int ok
, ndfltok
, first
;
8733 start
= multilib_defaults
;
8734 while (*start
== ' ' || *start
== '\t')
8736 while (*start
!= '\0')
8739 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8741 while (*start
== ' ' || *start
== '\t')
8749 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8750 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8752 while (*start
== ' ' || *start
== '\t')
8758 for (end
= start
+ 1;
8759 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8762 obstack_grow (&multilib_obstack
, start
, end
- start
);
8763 obstack_1grow (&multilib_obstack
, 0);
8764 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8765 mdswitches
[i
++].len
= end
- start
;
8772 p
= multilib_exclusions
;
8775 /* Ignore newlines. */
8782 /* Check the arguments. */
8789 fatal_error (input_location
, "multilib exclusions %qs is invalid",
8790 multilib_exclusions
);
8800 while (*p
!= ' ' && *p
!= ';')
8803 goto invalid_exclusions
;
8807 if (*this_arg
!= '!')
8815 ok
= used_arg (this_arg
, p
- this_arg
);
8830 p
= multilib_select
;
8832 /* Append multilib reuse rules if any. With those rules, we can reuse
8833 one multilib for certain different options sets. */
8834 if (strlen (multilib_reuse
) > 0)
8835 p
= concat (p
, multilib_reuse
, NULL
);
8839 /* Ignore newlines. */
8846 /* Get the initial path. */
8853 fatal_error (input_location
, "multilib select %qs %qs is invalid",
8854 multilib_select
, multilib_reuse
);
8858 this_path_len
= p
- this_path
;
8860 /* Check the arguments. */
8867 goto invalid_select
;
8876 while (*p
!= ' ' && *p
!= ';')
8879 goto invalid_select
;
8883 if (*this_arg
!= '!')
8891 /* If this is a default argument, we can just ignore it.
8892 This is true even if this_arg begins with '!'. Beginning
8893 with '!' does not mean that this argument is necessarily
8894 inappropriate for this library: it merely means that
8895 there is a more specific library which uses this
8896 argument. If this argument is a default, we need not
8897 consider that more specific library. */
8898 ok
= used_arg (this_arg
, p
- this_arg
);
8905 if (default_arg (this_arg
, p
- this_arg
))
8914 if (this_path_len
!= 1
8915 || this_path
[0] != '.')
8917 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
8920 strncpy (new_multilib_dir
, this_path
, this_path_len
);
8921 new_multilib_dir
[this_path_len
] = '\0';
8922 q
= strchr (new_multilib_dir
, ':');
8925 multilib_dir
= new_multilib_dir
;
8932 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8934 while (q
< end
&& *q
!= ':')
8938 const char *q2
= q
+ 1, *ml_end
= end
;
8939 char *new_multilib_os_dir
;
8941 while (q2
< end
&& *q2
!= ':')
8945 if (ml_end
- q
== 1)
8946 multilib_os_dir
= xstrdup (".");
8949 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
8950 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
8951 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
8952 multilib_os_dir
= new_multilib_os_dir
;
8955 if (q2
< end
&& *q2
== ':')
8957 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
8958 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
8959 new_multiarch_dir
[end
- q2
- 1] = '\0';
8960 multiarch_dir
= new_multiarch_dir
;
8969 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
8970 && strcmp (multilib_os_dir
, ".") == 0)
8972 free (CONST_CAST (char *, multilib_os_dir
));
8973 multilib_os_dir
= NULL
;
8975 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
8976 multilib_os_dir
= multilib_dir
;
8979 /* Print out the multiple library subdirectory selection
8980 information. This prints out a series of lines. Each line looks
8981 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8982 required. Only the desired options are printed out, the negative
8983 matches. The options are print without a leading dash. There are
8984 no spaces to make it easy to use the information in the shell.
8985 Each subdirectory is printed only once. This assumes the ordering
8986 generated by the genmultilib script. Also, we leave out ones that match
8990 print_multilib_info (void)
8992 const char *p
= multilib_select
;
8993 const char *last_path
= 0, *this_path
;
8995 unsigned int last_path_len
= 0;
9000 /* Ignore newlines. */
9007 /* Get the initial path. */
9014 fatal_error (input_location
,
9015 "multilib select %qs is invalid", multilib_select
);
9021 /* When --disable-multilib was used but target defines
9022 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
9023 with .:: for multiarch configurations) are there just to find
9024 multilib_os_dir, so skip them from output. */
9025 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
9028 /* Check for matches with the multilib_exclusions. We don't bother
9029 with the '!' in either list. If any of the exclusion rules match
9030 all of its options with the select rule, we skip it. */
9032 const char *e
= multilib_exclusions
;
9033 const char *this_arg
;
9038 /* Ignore newlines. */
9045 /* Check the arguments. */
9054 fatal_error (input_location
,
9055 "multilib exclusion %qs is invalid",
9056 multilib_exclusions
);
9067 while (*e
!= ' ' && *e
!= ';')
9070 goto invalid_exclusion
;
9078 int len
= e
- this_arg
;
9081 goto invalid_select
;
9085 while (*q
!= ' ' && *q
!= ';')
9088 goto invalid_select
;
9092 if (! strncmp (arg
, this_arg
,
9093 (len
< q
- arg
) ? q
- arg
: len
)
9094 || default_arg (this_arg
, e
- this_arg
))
9124 /* If this is a duplicate, skip it. */
9125 skip
= (last_path
!= 0
9126 && (unsigned int) (p
- this_path
) == last_path_len
9127 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
9129 last_path
= this_path
;
9130 last_path_len
= p
- this_path
;
9133 /* If this directory requires any default arguments, we can skip
9134 it. We will already have printed a directory identical to
9135 this one which does not require that default argument. */
9146 goto invalid_select
;
9153 while (*q
!= ' ' && *q
!= ';')
9156 goto invalid_select
;
9161 && default_arg (arg
, q
- arg
))
9176 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
9187 goto invalid_select
;
9195 use_arg
= *p
!= '!';
9200 while (*p
!= ' ' && *p
!= ';')
9203 goto invalid_select
;
9215 /* If there are extra options, print them now. */
9216 if (multilib_extra
&& *multilib_extra
)
9218 int print_at
= TRUE
;
9221 for (q
= multilib_extra
; *q
!= '\0'; q
++)
9242 /* getenv built-in spec function.
9244 Returns the value of the environment variable given by its first argument,
9245 concatenated with the second argument. If the variable is not defined, a
9246 fatal error is issued unless such undefs are internally allowed, in which
9247 case the variable name is used as the variable value. */
9250 getenv_spec_function (int argc
, const char **argv
)
9253 const char *varname
;
9263 value
= env
.get (varname
);
9265 if (!value
&& spec_undefvar_allowed
)
9269 fatal_error (input_location
,
9270 "environment variable %qs not defined", varname
);
9272 /* We have to escape every character of the environment variable so
9273 they are not interpreted as active spec characters. A
9274 particularly painful case is when we are reading a variable
9275 holding a windows path complete with \ separators. */
9276 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
9277 result
= XNEWVAR (char, len
);
9278 for (ptr
= result
; *value
; ptr
+= 2)
9284 strcpy (ptr
, argv
[1]);
9289 /* if-exists built-in spec function.
9291 Checks to see if the file specified by the absolute pathname in
9292 ARGS exists. Returns that pathname if found.
9294 The usual use for this function is to check for a library file
9295 (whose name has been expanded with %s). */
9298 if_exists_spec_function (int argc
, const char **argv
)
9300 /* Must have only one argument. */
9301 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9307 /* if-exists-else built-in spec function.
9309 This is like if-exists, but takes an additional argument which
9310 is returned if the first argument does not exist. */
9313 if_exists_else_spec_function (int argc
, const char **argv
)
9315 /* Must have exactly two arguments. */
9319 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9325 /* sanitize built-in spec function.
9327 This returns non-NULL, if sanitizing address, thread or
9328 any of the undefined behavior sanitizers. */
9331 sanitize_spec_function (int argc
, const char **argv
)
9336 if (strcmp (argv
[0], "address") == 0)
9337 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
9338 if (strcmp (argv
[0], "kernel-address") == 0)
9339 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
9340 if (strcmp (argv
[0], "thread") == 0)
9341 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
9342 if (strcmp (argv
[0], "undefined") == 0)
9343 return ((flag_sanitize
& (SANITIZE_UNDEFINED
| SANITIZE_NONDEFAULT
))
9344 && !flag_sanitize_undefined_trap_on_error
) ? "" : NULL
;
9345 if (strcmp (argv
[0], "leak") == 0)
9346 return ((flag_sanitize
9347 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
9348 == SANITIZE_LEAK
) ? "" : NULL
;
9352 /* replace-outfile built-in spec function.
9354 This looks for the first argument in the outfiles array's name and
9355 replaces it with the second argument. */
9358 replace_outfile_spec_function (int argc
, const char **argv
)
9361 /* Must have exactly two arguments. */
9365 for (i
= 0; i
< n_infiles
; i
++)
9367 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9368 outfiles
[i
] = xstrdup (argv
[1]);
9373 /* remove-outfile built-in spec function.
9375 * This looks for the first argument in the outfiles array's name and
9379 remove_outfile_spec_function (int argc
, const char **argv
)
9382 /* Must have exactly one argument. */
9386 for (i
= 0; i
< n_infiles
; i
++)
9388 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9394 /* Given two version numbers, compares the two numbers.
9395 A version number must match the regular expression
9396 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
9399 compare_version_strings (const char *v1
, const char *v2
)
9404 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
9405 REG_EXTENDED
| REG_NOSUB
) != 0)
9407 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
9408 if (rresult
== REG_NOMATCH
)
9409 fatal_error (input_location
, "invalid version number %qs", v1
);
9410 else if (rresult
!= 0)
9412 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
9413 if (rresult
== REG_NOMATCH
)
9414 fatal_error (input_location
, "invalid version number %qs", v2
);
9415 else if (rresult
!= 0)
9418 return strverscmp (v1
, v2
);
9422 /* version_compare built-in spec function.
9424 This takes an argument of the following form:
9426 <comparison-op> <arg1> [<arg2>] <switch> <result>
9428 and produces "result" if the comparison evaluates to true,
9429 and nothing if it doesn't.
9431 The supported <comparison-op> values are:
9433 >= true if switch is a later (or same) version than arg1
9435 < true if switch is an earlier version than arg1
9437 >< true if switch is arg1 or later, and earlier than arg2
9438 <> true if switch is earlier than arg1 or is arg2 or later
9440 If the switch is not present, the condition is false unless
9441 the first character of the <comparison-op> is '!'.
9444 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
9445 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
9448 version_compare_spec_function (int argc
, const char **argv
)
9452 const char *switch_value
= NULL
;
9457 fatal_error (input_location
, "too few arguments to %%:version-compare");
9458 if (argv
[0][0] == '\0')
9460 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
9462 if (argc
!= nargs
+ 3)
9463 fatal_error (input_location
, "too many arguments to %%:version-compare");
9465 switch_len
= strlen (argv
[nargs
+ 1]);
9466 for (i
= 0; i
< n_switches
; i
++)
9467 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
9468 && check_live_switch (i
, switch_len
))
9469 switch_value
= switches
[i
].part1
+ switch_len
;
9471 if (switch_value
== NULL
)
9475 comp1
= compare_version_strings (switch_value
, argv
[1]);
9477 comp2
= compare_version_strings (switch_value
, argv
[2]);
9479 comp2
= -1; /* This value unused. */
9482 switch (argv
[0][0] << 8 | argv
[0][1])
9484 case '>' << 8 | '=':
9485 result
= comp1
>= 0;
9487 case '!' << 8 | '<':
9488 result
= comp1
>= 0 || switch_value
== NULL
;
9493 case '!' << 8 | '>':
9494 result
= comp1
< 0 || switch_value
== NULL
;
9496 case '>' << 8 | '<':
9497 result
= comp1
>= 0 && comp2
< 0;
9499 case '<' << 8 | '>':
9500 result
= comp1
< 0 || comp2
>= 0;
9504 fatal_error (input_location
,
9505 "unknown operator %qs in %%:version-compare", argv
[0]);
9510 return argv
[nargs
+ 2];
9513 /* %:include builtin spec function. This differs from %include in that it
9514 can be nested inside a spec, and thus be conditionalized. It takes
9515 one argument, the filename, and looks for it in the startfile path.
9516 The result is always NULL, i.e. an empty expansion. */
9519 include_spec_function (int argc
, const char **argv
)
9526 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
9527 read_specs (file
? file
: argv
[0], false, false);
9532 /* %:find-file spec function. This function replaces its argument by
9533 the file found through find_file, that is the -print-file-name gcc
9536 find_file_spec_function (int argc
, const char **argv
)
9543 file
= find_file (argv
[0]);
9548 /* %:find-plugindir spec function. This function replaces its argument
9549 by the -iplugindir=<dir> option. `dir' is found through find_file, that
9550 is the -print-file-name gcc program option. */
9552 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
9559 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
9564 /* %:print-asm-header spec function. Print a banner to say that the
9565 following output is from the assembler. */
9568 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
9569 const char **argv ATTRIBUTE_UNUSED
)
9571 printf (_("Assembler options\n=================\n\n"));
9572 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
9577 /* Get a random number for -frandom-seed */
9579 static unsigned HOST_WIDE_INT
9580 get_random_number (void)
9582 unsigned HOST_WIDE_INT ret
= 0;
9585 fd
= open ("/dev/urandom", O_RDONLY
);
9588 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
9594 /* Get some more or less random data. */
9595 #ifdef HAVE_GETTIMEOFDAY
9599 gettimeofday (&tv
, NULL
);
9600 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
9604 time_t now
= time (NULL
);
9606 if (now
!= (time_t)-1)
9607 ret
= (unsigned) now
;
9611 return ret
^ getpid ();
9614 /* %:compare-debug-dump-opt spec function. Save the last argument,
9615 expected to be the last -fdump-final-insns option, or generate a
9619 compare_debug_dump_opt_spec_function (int arg
,
9620 const char **argv ATTRIBUTE_UNUSED
)
9625 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
9628 fatal_error (input_location
,
9629 "too many arguments to %%:compare-debug-dump-opt");
9631 do_spec_2 ("%{fdump-final-insns=*:%*}");
9632 do_spec_1 (" ", 0, NULL
);
9634 if (argbuf
.length () > 0
9635 && strcmp (argv
[argbuf
.length () - 1], "."))
9640 name
= xstrdup (argv
[argbuf
.length () - 1]);
9645 const char *ext
= NULL
;
9647 if (argbuf
.length () > 0)
9649 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
9652 else if (!compare_debug
)
9655 do_spec_2 ("%g.gkd");
9657 do_spec_1 (" ", 0, NULL
);
9659 gcc_assert (argbuf
.length () > 0);
9661 name
= concat (argbuf
.last (), ext
, NULL
);
9663 ret
= concat ("-fdump-final-insns=", name
, NULL
);
9666 which
= compare_debug
< 0;
9667 debug_check_temp_file
[which
] = name
;
9671 unsigned HOST_WIDE_INT value
= get_random_number ();
9673 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
9679 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
9690 static const char *debug_auxbase_opt
;
9692 /* %:compare-debug-self-opt spec function. Expands to the options
9693 that are to be passed in the second compilation of
9697 compare_debug_self_opt_spec_function (int arg
,
9698 const char **argv ATTRIBUTE_UNUSED
)
9701 fatal_error (input_location
,
9702 "too many arguments to %%:compare-debug-self-opt");
9704 if (compare_debug
>= 0)
9707 do_spec_2 ("%{c|S:%{o*:%*}}");
9708 do_spec_1 (" ", 0, NULL
);
9710 if (argbuf
.length () > 0)
9711 debug_auxbase_opt
= concat ("-auxbase-strip ",
9715 debug_auxbase_opt
= NULL
;
9718 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
9719 %<fdump-final-insns=* -w -S -o %j \
9720 %{!fcompare-debug-second:-fcompare-debug-second} \
9721 ", compare_debug_opt
, NULL
);
9724 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
9725 options that are to be passed in the second compilation of
9726 compare-debug. It expects, as an argument, the basename of the
9727 current input file name, with the .gk suffix appended to it. */
9730 compare_debug_auxbase_opt_spec_function (int arg
,
9737 fatal_error (input_location
,
9738 "too few arguments to %%:compare-debug-auxbase-opt");
9741 fatal_error (input_location
,
9742 "too many arguments to %%:compare-debug-auxbase-opt");
9744 if (compare_debug
>= 0)
9747 len
= strlen (argv
[0]);
9748 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
9749 fatal_error (input_location
, "argument to %%:compare-debug-auxbase-opt "
9750 "does not end in .gk");
9752 if (debug_auxbase_opt
)
9753 return debug_auxbase_opt
;
9755 #define OPT "-auxbase "
9758 name
= (char*) xmalloc (sizeof (OPT
) + len
);
9759 memcpy (name
, OPT
, sizeof (OPT
) - 1);
9760 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
9761 name
[sizeof (OPT
) - 1 + len
] = '\0';
9768 /* %:pass-through-libs spec function. Finds all -l options and input
9769 file names in the lib spec passed to it, and makes a list of them
9770 prepended with the plugin option to cause them to be passed through
9771 to the final link after all the new object files have been added. */
9774 pass_through_libs_spec_func (int argc
, const char **argv
)
9776 char *prepended
= xstrdup (" ");
9778 /* Shlemiel the painter's algorithm. Innately horrible, but at least
9779 we know that there will never be more than a handful of strings to
9780 concat, and it's only once per run, so it's not worth optimising. */
9781 for (n
= 0; n
< argc
; n
++)
9783 char *old
= prepended
;
9784 /* Anything that isn't an option is a full path to an output
9785 file; pass it through if it ends in '.a'. Among options,
9787 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
9789 const char *lopt
= argv
[n
] + 2;
9790 /* Handle both joined and non-joined -l options. If for any
9791 reason there's a trailing -l with no joined or following
9792 arg just discard it. */
9793 if (!*lopt
&& ++n
>= argc
)
9797 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
9800 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
9802 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
9803 argv
[n
], " ", NULL
);
9805 if (prepended
!= old
)
9811 /* %:replace-extension spec function. Replaces the extension of the
9812 first argument with the second argument. */
9815 replace_extension_spec_func (int argc
, const char **argv
)
9823 fatal_error (input_location
, "too few arguments to %%:replace-extension");
9825 name
= xstrdup (argv
[0]);
9827 for (i
= strlen (name
) - 1; i
>= 0; i
--)
9828 if (IS_DIR_SEPARATOR (name
[i
]))
9831 p
= strrchr (name
+ i
+ 1, '.');
9835 result
= concat (name
, argv
[1], NULL
);
9841 /* Returns "" if ARGV[ARGC - 2] is greater than ARGV[ARGC-1].
9842 Otherwise, return NULL. */
9845 greater_than_spec_func (int argc
, const char **argv
)
9852 gcc_assert (argc
>= 2);
9854 long arg
= strtol (argv
[argc
- 2], &converted
, 10);
9855 gcc_assert (converted
!= argv
[argc
- 2]);
9857 long lim
= strtol (argv
[argc
- 1], &converted
, 10);
9858 gcc_assert (converted
!= argv
[argc
- 1]);
9866 /* Insert backslash before spaces in ORIG (usually a file path), to
9867 avoid being broken by spec parser.
9869 This function is needed as do_spec_1 treats white space (' ' and '\t')
9870 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
9871 the file name should be treated as a single argument rather than being
9872 broken into multiple. Solution is to insert '\\' before the space in a
9875 This function converts and only converts all occurrence of ' '
9876 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
9880 "a\\ b" -> "a\\\\ b"
9882 orig: input null-terminating string that was allocated by xalloc. The
9883 memory it points to might be freed in this function. Behavior undefined
9884 if ORIG wasn't xalloced or was freed already at entry.
9886 Return: ORIG if no conversion needed. Otherwise a newly allocated string
9887 that was converted from ORIG. */
9890 convert_white_space (char *orig
)
9892 int len
, number_of_space
= 0;
9894 for (len
= 0; orig
[len
]; len
++)
9895 if (orig
[len
] == ' ' || orig
[len
] == '\t') number_of_space
++;
9897 if (number_of_space
)
9899 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
9901 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
9903 if (orig
[j
] == ' ' || orig
[j
] == '\t')
9904 new_spec
[k
++] = '\\';
9905 new_spec
[k
] = orig
[j
];
9915 path_prefix_reset (path_prefix
*prefix
)
9917 struct prefix_list
*iter
, *next
;
9918 iter
= prefix
->plist
;
9922 free (const_cast <char *> (iter
->prefix
));
9927 prefix
->max_len
= 0;
9930 /* Restore all state within gcc.c to the initial state, so that the driver
9931 code can be safely re-run in-process.
9933 Many const char * variables are referenced by static specs (see
9934 INIT_STATIC_SPEC above). These variables are restored to their default
9935 values by a simple loop over the static specs.
9937 For other variables, we directly restore them all to their initial
9938 values (often implicitly 0).
9940 Free the various obstacks in this file, along with "opts_obstack"
9943 This function also restores any environment variables that were changed. */
9949 params_c_finalize ();
9950 diagnostic_finish (global_dc
);
9953 at_file_supplied
= 0;
9954 print_help_list
= 0;
9956 verbose_only_flag
= 0;
9957 print_subprocess_help
= 0;
9959 report_times_to_file
= NULL
;
9960 target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
9961 target_system_root_changed
= 0;
9962 target_sysroot_suffix
= 0;
9963 target_sysroot_hdrs_suffix
= 0;
9964 save_temps_flag
= SAVE_TEMPS_NONE
;
9965 save_temps_prefix
= 0;
9966 save_temps_length
= 0;
9967 spec_machine
= DEFAULT_TARGET_MACHINE
;
9968 greatest_status
= 1;
9970 finalize_options_struct (&global_options
);
9971 finalize_options_struct (&global_options_set
);
9973 obstack_free (&obstack
, NULL
);
9974 obstack_free (&opts_obstack
, NULL
); /* in opts.c */
9975 obstack_free (&collect_obstack
, NULL
);
9977 link_command_spec
= LINK_COMMAND_SPEC
;
9979 obstack_free (&multilib_obstack
, NULL
);
9981 user_specs_head
= NULL
;
9982 user_specs_tail
= NULL
;
9984 /* Within the "compilers" vec, the fields "suffix" and "spec" were
9985 statically allocated for the default compilers, but dynamically
9986 allocated for additional compilers. Delete them for the latter. */
9987 for (int i
= n_default_compilers
; i
< n_compilers
; i
++)
9989 free (const_cast <char *> (compilers
[i
].suffix
));
9990 free (const_cast <char *> (compilers
[i
].spec
));
9992 XDELETEVEC (compilers
);
9996 linker_options
.truncate (0);
9997 assembler_options
.truncate (0);
9998 preprocessor_options
.truncate (0);
10000 path_prefix_reset (&exec_prefixes
);
10001 path_prefix_reset (&startfile_prefixes
);
10002 path_prefix_reset (&include_prefixes
);
10004 machine_suffix
= 0;
10005 just_machine_suffix
= 0;
10006 gcc_exec_prefix
= 0;
10007 gcc_libexec_prefix
= 0;
10008 md_exec_prefix
= MD_EXEC_PREFIX
;
10009 md_startfile_prefix
= MD_STARTFILE_PREFIX
;
10010 md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
10012 multilib_os_dir
= 0;
10015 /* Free any specs dynamically-allocated by set_spec.
10016 These will be at the head of the list, before the
10017 statically-allocated ones. */
10020 while (specs
!= static_specs
)
10022 spec_list
*next
= specs
->next
;
10023 free (const_cast <char *> (specs
->name
));
10029 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
10031 spec_list
*sl
= &static_specs
[i
];
10035 free (const_cast <char *> (*(sl
->ptr_spec
)));
10036 sl
->alloc_p
= false;
10038 *(sl
->ptr_spec
) = sl
->default_ptr
;
10041 extra_specs
= NULL
;
10044 processing_spec_function
= 0;
10046 argbuf
.truncate (0);
10052 execution_count
= 0;
10055 temp_filename
= NULL
;
10056 temp_filename_length
= 0;
10057 always_delete_queue
= NULL
;
10058 failure_delete_queue
= NULL
;
10060 XDELETEVEC (switches
);
10063 n_switches_alloc
= 0;
10066 compare_debug_second
= 0;
10067 compare_debug_opt
= NULL
;
10068 for (int i
= 0; i
< 2; i
++)
10070 switches_debug_check
[i
] = NULL
;
10071 n_switches_debug_check
[i
] = 0;
10072 n_switches_alloc_debug_check
[i
] = 0;
10073 debug_check_temp_file
[i
] = NULL
;
10076 XDELETEVEC (infiles
);
10079 n_infiles_alloc
= 0;
10081 combine_inputs
= false;
10082 added_libraries
= 0;
10083 XDELETEVEC (outfiles
);
10086 last_language_n_infiles
= 0;
10087 gcc_input_filename
= NULL
;
10088 input_file_number
= 0;
10089 input_filename_length
= 0;
10090 basename_length
= 0;
10091 suffixed_basename_length
= 0;
10092 input_basename
= NULL
;
10093 input_suffix
= NULL
;
10094 /* We don't need to purge "input_stat", just to unset "input_stat_set". */
10095 input_stat_set
= 0;
10096 input_file_compiler
= NULL
;
10098 delete_this_arg
= 0;
10099 this_is_output_file
= 0;
10100 this_is_library_file
= 0;
10101 this_is_linker_script
= 0;
10102 input_from_pipe
= 0;
10103 suffix_subst
= NULL
;
10108 debug_auxbase_opt
= NULL
;
10110 used_arg
.finalize ();
10114 Targets can provide configure-time default options in
10115 OPTION_DEFAULT_SPECS. The jit needs to access these, but
10116 they are expressed in the spec language.
10118 Run just enough of the driver to be able to expand these
10119 specs, and then call the callback CB on each
10120 such option. The options strings are *without* a leading
10121 '-' character e.g. ("march=x86-64"). Finally, clean up. */
10124 driver_get_configure_time_options (void (*cb
) (const char *option
,
10130 obstack_init (&obstack
);
10131 init_opts_obstack ();
10134 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
10135 do_option_spec (option_default_specs
[i
].name
,
10136 option_default_specs
[i
].spec
);
10138 for (i
= 0; (int) i
< n_switches
; i
++)
10140 gcc_assert (switches
[i
].part1
);
10141 (*cb
) (switches
[i
].part1
, user_data
);
10144 obstack_free (&opts_obstack
, NULL
);
10145 obstack_free (&obstack
, NULL
);