1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2016 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=atomic}}}\
1148 %{fprofile-update=single:\
1149 %{fprofile-arcs|fprofile-generate*|coverage:\
1150 %{pthread:%n-fprofile-update=atomic should be used\
1151 for a multithreaded application}}}";
1153 static const char *asm_options
=
1154 "%{-target-help:%:print-asm-header()} "
1156 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
1157 to the assembler equivalents. */
1158 "%{v} %{w:-W} %{I*} "
1160 ASM_COMPRESS_DEBUG_SPEC
1161 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
1163 static const char *invoke_as
=
1164 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1166 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1167 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
1171 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1172 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
1176 /* Some compilers have limits on line lengths, and the multilib_select
1177 and/or multilib_matches strings can be very long, so we build them at
1179 static struct obstack multilib_obstack
;
1180 static const char *multilib_select
;
1181 static const char *multilib_matches
;
1182 static const char *multilib_defaults
;
1183 static const char *multilib_exclusions
;
1184 static const char *multilib_reuse
;
1186 /* Check whether a particular argument is a default argument. */
1188 #ifndef MULTILIB_DEFAULTS
1189 #define MULTILIB_DEFAULTS { "" }
1192 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
1194 #ifndef DRIVER_SELF_SPECS
1195 #define DRIVER_SELF_SPECS ""
1198 /* Linking to libgomp implies pthreads. This is particularly important
1199 for targets that use different start files and suchlike. */
1200 #ifndef GOMP_SELF_SPECS
1201 #define GOMP_SELF_SPECS \
1202 "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \
1206 /* Likewise for -fgnu-tm. */
1207 #ifndef GTM_SELF_SPECS
1208 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1211 /* Likewise for -fcilkplus. */
1212 #ifndef CILK_SELF_SPECS
1213 #define CILK_SELF_SPECS "%{fcilkplus: -pthread}"
1216 static const char *const driver_self_specs
[] = {
1217 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1218 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
,
1222 #ifndef OPTION_DEFAULT_SPECS
1223 #define OPTION_DEFAULT_SPECS { "", "" }
1232 static const struct default_spec
1233 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1237 struct user_specs
*next
;
1238 const char *filename
;
1241 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1244 /* Record the mapping from file suffixes for compilation specs. */
1248 const char *suffix
; /* Use this compiler for input files
1249 whose names end in this suffix. */
1251 const char *spec
; /* To use this compiler, run this spec. */
1253 const char *cpp_spec
; /* If non-NULL, substitute this spec
1254 for `%C', rather than the usual
1256 const int combinable
; /* If nonzero, compiler can deal with
1257 multiple source files at once (IMA). */
1258 const int needs_preprocessing
; /* If nonzero, source files need to
1259 be run through a preprocessor. */
1262 /* Pointer to a vector of `struct compiler' that gives the spec for
1263 compiling a file, based on its suffix.
1264 A file that does not end in any of these suffixes will be passed
1265 unchanged to the loader and nothing else will be done to it.
1267 An entry containing two 0s is used to terminate the vector.
1269 If multiple entries match a file, the last matching one is used. */
1271 static struct compiler
*compilers
;
1273 /* Number of entries in `compilers', not counting the null terminator. */
1275 static int n_compilers
;
1277 /* The default list of file name suffixes and their compilation specs. */
1279 static const struct compiler default_compilers
[] =
1281 /* Add lists of suffixes of known languages here. If those languages
1282 were not present when we built the driver, we will hit these copies
1283 and be given a more meaningful error than "file not used since
1284 linking is not done". */
1285 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1286 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1287 {".mii", "#Objective-C++", 0, 0, 0},
1288 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1289 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1290 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1291 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1292 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1293 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1294 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1295 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1296 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1297 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1298 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1299 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1300 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1301 {".r", "#Ratfor", 0, 0, 0},
1302 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1303 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1304 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1305 {".go", "#Go", 0, 1, 0},
1306 /* Next come the entries for C. */
1307 {".c", "@c", 0, 0, 1},
1309 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1310 external preprocessor if -save-temps is given. */
1311 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1314 %eGNU C no longer supports -traditional without -E}\
1315 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1316 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1317 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1319 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1320 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1321 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1323 "%{!E:%e-E or -x required when input is from standard input}\
1324 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1325 {".h", "@c-header", 0, 0, 0},
1327 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1328 external preprocessor if -save-temps is given. */
1329 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1331 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1332 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1333 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1335 %{!fsyntax-only:-o %g.s \
1336 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1337 %W{o*:--output-pch=%*}}%V}}\
1338 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1339 cc1 %(cpp_unique_options) %(cc1_options)\
1340 %{!fsyntax-only:%{!S:-o %g.s} \
1341 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1342 %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
1343 {".i", "@cpp-output", 0, 0, 0},
1345 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1346 {".s", "@assembler", 0, 0, 0},
1348 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1349 {".sx", "@assembler-with-cpp", 0, 0, 0},
1350 {".S", "@assembler-with-cpp", 0, 0, 0},
1351 {"@assembler-with-cpp",
1352 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1353 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1354 %{E|M|MM:%(cpp_debug_options)}\
1355 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1356 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1358 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1359 %{E|M|MM:%(cpp_debug_options)}\
1360 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1361 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1366 /* Mark end of table. */
1370 /* Number of elements in default_compilers, not counting the terminator. */
1372 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1374 typedef char *char_p
; /* For DEF_VEC_P. */
1376 /* A vector of options to give to the linker.
1377 These options are accumulated by %x,
1378 and substituted into the linker command with %X. */
1379 static vec
<char_p
> linker_options
;
1381 /* A vector of options to give to the assembler.
1382 These options are accumulated by -Wa,
1383 and substituted into the assembler command with %Y. */
1384 static vec
<char_p
> assembler_options
;
1386 /* A vector of options to give to the preprocessor.
1387 These options are accumulated by -Wp,
1388 and substituted into the preprocessor command with %Z. */
1389 static vec
<char_p
> preprocessor_options
;
1392 skip_whitespace (char *p
)
1396 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1397 be considered whitespace. */
1398 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1400 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1414 /* Structures to keep track of prefixes to try when looking for files. */
1418 const char *prefix
; /* String to prepend to the path. */
1419 struct prefix_list
*next
; /* Next in linked list. */
1420 int require_machine_suffix
; /* Don't use without machine_suffix. */
1421 /* 2 means try both machine_suffix and just_machine_suffix. */
1422 int priority
; /* Sort key - priority within list. */
1423 int os_multilib
; /* 1 if OS multilib scheme should be used,
1424 0 for GCC multilib scheme. */
1429 struct prefix_list
*plist
; /* List of prefixes to try */
1430 int max_len
; /* Max length of a prefix in PLIST */
1431 const char *name
; /* Name of this list (used in config stuff) */
1434 /* List of prefixes to try when looking for executables. */
1436 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1438 /* List of prefixes to try when looking for startup (crt0) files. */
1440 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1442 /* List of prefixes to try when looking for include files. */
1444 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1446 /* Suffix to attach to directories searched for commands.
1447 This looks like `MACHINE/VERSION/'. */
1449 static const char *machine_suffix
= 0;
1451 /* Suffix to attach to directories searched for commands.
1452 This is just `MACHINE/'. */
1454 static const char *just_machine_suffix
= 0;
1456 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1458 static const char *gcc_exec_prefix
;
1460 /* Adjusted value of standard_libexec_prefix. */
1462 static const char *gcc_libexec_prefix
;
1464 /* Default prefixes to attach to command names. */
1466 #ifndef STANDARD_STARTFILE_PREFIX_1
1467 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1469 #ifndef STANDARD_STARTFILE_PREFIX_2
1470 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1473 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1474 #undef MD_EXEC_PREFIX
1475 #undef MD_STARTFILE_PREFIX
1476 #undef MD_STARTFILE_PREFIX_1
1479 /* If no prefixes defined, use the null string, which will disable them. */
1480 #ifndef MD_EXEC_PREFIX
1481 #define MD_EXEC_PREFIX ""
1483 #ifndef MD_STARTFILE_PREFIX
1484 #define MD_STARTFILE_PREFIX ""
1486 #ifndef MD_STARTFILE_PREFIX_1
1487 #define MD_STARTFILE_PREFIX_1 ""
1490 /* These directories are locations set at configure-time based on the
1491 --prefix option provided to configure. Their initializers are
1492 defined in Makefile.in. These paths are not *directly* used when
1493 gcc_exec_prefix is set because, in that case, we know where the
1494 compiler has been installed, and use paths relative to that
1495 location instead. */
1496 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1497 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1498 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1499 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1501 /* For native compilers, these are well-known paths containing
1502 components that may be provided by the system. For cross
1503 compilers, these paths are not used. */
1504 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1505 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1506 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1507 static const char *const standard_startfile_prefix_1
1508 = STANDARD_STARTFILE_PREFIX_1
;
1509 static const char *const standard_startfile_prefix_2
1510 = STANDARD_STARTFILE_PREFIX_2
;
1512 /* A relative path to be used in finding the location of tools
1513 relative to the driver. */
1514 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1516 /* A prefix to be used when this is an accelerator compiler. */
1517 static const char *const accel_dir_suffix
= ACCEL_DIR_SUFFIX
;
1519 /* Subdirectory to use for locating libraries. Set by
1520 set_multilib_dir based on the compilation options. */
1522 static const char *multilib_dir
;
1524 /* Subdirectory to use for locating libraries in OS conventions. Set by
1525 set_multilib_dir based on the compilation options. */
1527 static const char *multilib_os_dir
;
1529 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1530 set_multilib_dir based on the compilation options. */
1532 static const char *multiarch_dir
;
1534 /* Structure to keep track of the specs that have been defined so far.
1535 These are accessed using %(specname) in a compiler or link
1540 /* The following 2 fields must be first */
1541 /* to allow EXTRA_SPECS to be initialized */
1542 const char *name
; /* name of the spec. */
1543 const char *ptr
; /* available ptr if no static pointer */
1545 /* The following fields are not initialized */
1546 /* by EXTRA_SPECS */
1547 const char **ptr_spec
; /* pointer to the spec itself. */
1548 struct spec_list
*next
; /* Next spec in linked list. */
1549 int name_len
; /* length of the name */
1550 bool user_p
; /* whether string come from file spec. */
1551 bool alloc_p
; /* whether string was allocated */
1552 const char *default_ptr
; /* The default value of *ptr_spec. */
1555 #define INIT_STATIC_SPEC(NAME,PTR) \
1556 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false, \
1559 /* List of statically defined specs. */
1560 static struct spec_list static_specs
[] =
1562 INIT_STATIC_SPEC ("asm", &asm_spec
),
1563 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1564 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1565 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1566 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1567 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1568 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1569 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1570 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1571 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1572 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1573 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1574 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1575 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1576 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1577 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1578 INIT_STATIC_SPEC ("link", &link_spec
),
1579 INIT_STATIC_SPEC ("lib", &lib_spec
),
1580 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1581 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1582 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1583 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1584 INIT_STATIC_SPEC ("version", &compiler_version
),
1585 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1586 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1587 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1588 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1589 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1590 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1591 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1592 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1593 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1594 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1595 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1596 INIT_STATIC_SPEC ("post_link", &post_link_spec
),
1597 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1598 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1599 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1600 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1601 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1602 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1603 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1604 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1605 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1608 #ifdef EXTRA_SPECS /* additional specs needed */
1609 /* Structure to keep track of just the first two args of a spec_list.
1610 That is all that the EXTRA_SPECS macro gives us. */
1613 const char *const name
;
1614 const char *const ptr
;
1617 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1618 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1621 /* List of dynamically allocates specs that have been defined so far. */
1623 static struct spec_list
*specs
= (struct spec_list
*) 0;
1625 /* List of static spec functions. */
1627 static const struct spec_function static_spec_functions
[] =
1629 { "getenv", getenv_spec_function
},
1630 { "if-exists", if_exists_spec_function
},
1631 { "if-exists-else", if_exists_else_spec_function
},
1632 { "sanitize", sanitize_spec_function
},
1633 { "replace-outfile", replace_outfile_spec_function
},
1634 { "remove-outfile", remove_outfile_spec_function
},
1635 { "version-compare", version_compare_spec_function
},
1636 { "include", include_spec_function
},
1637 { "find-file", find_file_spec_function
},
1638 { "find-plugindir", find_plugindir_spec_function
},
1639 { "print-asm-header", print_asm_header_spec_function
},
1640 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1641 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1642 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1643 { "pass-through-libs", pass_through_libs_spec_func
},
1644 { "replace-extension", replace_extension_spec_func
},
1645 { "gt", greater_than_spec_func
},
1646 #ifdef EXTRA_SPEC_FUNCTIONS
1647 EXTRA_SPEC_FUNCTIONS
1652 static int processing_spec_function
;
1654 /* Add appropriate libgcc specs to OBSTACK, taking into account
1655 various permutations of -shared-libgcc, -shared, and such. */
1657 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1659 #ifndef USE_LD_AS_NEEDED
1660 #define USE_LD_AS_NEEDED 0
1664 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1665 const char *static_name
, const char *eh_name
)
1669 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1670 "%{!static:%{!static-libgcc:"
1671 #if USE_LD_AS_NEEDED
1672 "%{!shared-libgcc:",
1673 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1674 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1677 shared_name
, "%{!shared: ", static_name
, "}"
1681 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1682 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1686 "%{shared-libgcc:", shared_name
, "}"
1687 "%{!shared-libgcc:", static_name
, "}"
1690 "%{shared:", shared_name
, "}"
1695 obstack_grow (obstack
, buf
, strlen (buf
));
1698 #endif /* ENABLE_SHARED_LIBGCC */
1700 /* Initialize the specs lookup routines. */
1705 struct spec_list
*next
= (struct spec_list
*) 0;
1706 struct spec_list
*sl
= (struct spec_list
*) 0;
1710 return; /* Already initialized. */
1713 fnotice (stderr
, "Using built-in specs.\n");
1716 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1718 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1720 sl
= &extra_specs
[i
];
1721 sl
->name
= extra_specs_1
[i
].name
;
1722 sl
->ptr
= extra_specs_1
[i
].ptr
;
1724 sl
->name_len
= strlen (sl
->name
);
1725 sl
->ptr_spec
= &sl
->ptr
;
1726 gcc_assert (sl
->ptr_spec
!= NULL
);
1727 sl
->default_ptr
= sl
->ptr
;
1732 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1734 sl
= &static_specs
[i
];
1739 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1740 /* ??? If neither -shared-libgcc nor --static-libgcc was
1741 seen, then we should be making an educated guess. Some proposed
1742 heuristics for ELF include:
1744 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1745 program will be doing dynamic loading, which will likely
1746 need the shared libgcc.
1748 (2) If "-ldl", then it's also a fair bet that we're doing
1751 (3) For each ET_DYN we're linking against (either through -lfoo
1752 or /some/path/foo.so), check to see whether it or one of
1753 its dependencies depends on a shared libgcc.
1757 If the runtime is fixed to look for program headers instead
1758 of calling __register_frame_info at all, for each object,
1759 use the shared libgcc if any EH symbol referenced.
1761 If crtstuff is fixed to not invoke __register_frame_info
1762 automatically, for each object, use the shared libgcc if
1763 any non-empty unwind section found.
1765 Doing any of this probably requires invoking an external program to
1766 do the actual object file scanning. */
1768 const char *p
= libgcc_spec
;
1771 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1772 when given the proper command line arguments. */
1775 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1777 init_gcc_specs (&obstack
,
1779 #ifdef USE_LIBUNWIND_EXCEPTIONS
1785 #ifdef USE_LIBUNWIND_EXCEPTIONS
1786 # ifdef HAVE_LD_STATIC_DYNAMIC
1787 " %{!static:" LD_STATIC_OPTION
"} -lunwind"
1788 " %{!static:" LD_DYNAMIC_OPTION
"}"
1798 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1800 /* Ug. We don't know shared library extensions. Hope that
1801 systems that use this form don't do shared libraries. */
1802 init_gcc_specs (&obstack
,
1806 #ifdef USE_LIBUNWIND_EXCEPTIONS
1815 obstack_1grow (&obstack
, *p
);
1816 in_sep
= (*p
== ' ');
1821 obstack_1grow (&obstack
, '\0');
1822 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1825 #ifdef USE_AS_TRADITIONAL_FORMAT
1826 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1828 static const char tf
[] = "--traditional-format ";
1829 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1830 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1831 asm_spec
= XOBFINISH (&obstack
, const char *);
1835 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1836 defined LINKER_HASH_STYLE
1837 # ifdef LINK_BUILDID_SPEC
1838 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1839 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1841 # ifdef LINK_EH_SPEC
1842 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1843 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1845 # ifdef LINKER_HASH_STYLE
1846 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1849 static const char hash_style
[] = "--hash-style=";
1850 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1851 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1852 obstack_1grow (&obstack
, ' ');
1855 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1856 link_spec
= XOBFINISH (&obstack
, const char *);
1862 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1863 removed; If the spec starts with a + then SPEC is added to the end of the
1867 set_spec (const char *name
, const char *spec
, bool user_p
)
1869 struct spec_list
*sl
;
1870 const char *old_spec
;
1871 int name_len
= strlen (name
);
1874 /* If this is the first call, initialize the statically allocated specs. */
1877 struct spec_list
*next
= (struct spec_list
*) 0;
1878 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1880 sl
= &static_specs
[i
];
1887 /* See if the spec already exists. */
1888 for (sl
= specs
; sl
; sl
= sl
->next
)
1889 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1894 /* Not found - make it. */
1895 sl
= XNEW (struct spec_list
);
1896 sl
->name
= xstrdup (name
);
1897 sl
->name_len
= name_len
;
1898 sl
->ptr_spec
= &sl
->ptr
;
1900 *(sl
->ptr_spec
) = "";
1902 sl
->default_ptr
= NULL
;
1906 old_spec
= *(sl
->ptr_spec
);
1907 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1908 ? concat (old_spec
, spec
+ 1, NULL
)
1913 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1916 /* Free the old spec. */
1917 if (old_spec
&& sl
->alloc_p
)
1918 free (CONST_CAST (char *, old_spec
));
1920 sl
->user_p
= user_p
;
1924 /* Accumulate a command (program name and args), and run it. */
1926 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1928 /* Vector of pointers to arguments in the current line of specifications. */
1930 static vec
<const_char_p
> argbuf
;
1932 /* Were the options -c, -S or -E passed. */
1933 static int have_c
= 0;
1935 /* Was the option -o passed. */
1936 static int have_o
= 0;
1938 /* Pointer to output file name passed in with -o. */
1939 static const char *output_file
= 0;
1941 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1942 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1945 static struct temp_name
{
1946 const char *suffix
; /* suffix associated with the code. */
1947 int length
; /* strlen (suffix). */
1948 int unique
; /* Indicates whether %g or %u/%U was used. */
1949 const char *filename
; /* associated filename. */
1950 int filename_length
; /* strlen (filename). */
1951 struct temp_name
*next
;
1954 /* Number of commands executed so far. */
1956 static int execution_count
;
1958 /* Number of commands that exited with a signal. */
1960 static int signal_count
;
1962 /* Allocate the argument vector. */
1970 /* Clear out the vector of arguments (after a command is executed). */
1975 argbuf
.truncate (0);
1978 /* Add one argument to the vector at the end.
1979 This is done when a space is seen or at the end of the line.
1980 If DELETE_ALWAYS is nonzero, the arg is a filename
1981 and the file should be deleted eventually.
1982 If DELETE_FAILURE is nonzero, the arg is a filename
1983 and the file should be deleted if this compilation fails. */
1986 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1988 argbuf
.safe_push (arg
);
1990 if (delete_always
|| delete_failure
)
1993 /* If the temporary file we should delete is specified as
1994 part of a joined argument extract the filename. */
1996 && (p
= strrchr (arg
, '=')))
1998 record_temp_file (arg
, delete_always
, delete_failure
);
2002 /* Load specs from a file name named FILENAME, replacing occurrences of
2003 various different types of line-endings, \r\n, \n\r and just \r, with
2007 load_specs (const char *filename
)
2011 struct stat statbuf
;
2018 fnotice (stderr
, "Reading specs from %s\n", filename
);
2020 /* Open and stat the file. */
2021 desc
= open (filename
, O_RDONLY
, 0);
2023 pfatal_with_name (filename
);
2024 if (stat (filename
, &statbuf
) < 0)
2025 pfatal_with_name (filename
);
2027 /* Read contents of file into BUFFER. */
2028 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2029 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2031 pfatal_with_name (filename
);
2032 buffer
[readlen
] = 0;
2035 specs
= XNEWVEC (char, readlen
+ 1);
2037 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2043 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2045 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2059 /* Read compilation specs from a file named FILENAME,
2060 replacing the default ones.
2062 A suffix which starts with `*' is a definition for
2063 one of the machine-specific sub-specs. The "suffix" should be
2064 *asm, *cc1, *cpp, *link, *startfile, etc.
2065 The corresponding spec is stored in asm_spec, etc.,
2066 rather than in the `compilers' vector.
2068 Anything invalid in the file is a fatal error. */
2071 read_specs (const char *filename
, bool main_p
, bool user_p
)
2076 buffer
= load_specs (filename
);
2078 /* Scan BUFFER for specs, putting them in the vector. */
2084 char *in
, *out
, *p1
, *p2
, *p3
;
2086 /* Advance P in BUFFER to the next nonblank nocomment line. */
2087 p
= skip_whitespace (p
);
2091 /* Is this a special command that starts with '%'? */
2092 /* Don't allow this for the main specs file, since it would
2093 encourage people to overwrite it. */
2094 if (*p
== '%' && !main_p
)
2097 while (*p
&& *p
!= '\n')
2103 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2104 && (p1
[sizeof "%include" - 1] == ' '
2105 || p1
[sizeof "%include" - 1] == '\t'))
2109 p1
+= sizeof ("%include");
2110 while (*p1
== ' ' || *p1
== '\t')
2113 if (*p1
++ != '<' || p
[-2] != '>')
2114 fatal_error (input_location
,
2115 "specs %%include syntax malformed after "
2117 (long) (p1
- buffer
+ 1));
2120 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2121 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
2124 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2125 && (p1
[sizeof "%include_noerr" - 1] == ' '
2126 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2130 p1
+= sizeof "%include_noerr";
2131 while (*p1
== ' ' || *p1
== '\t')
2134 if (*p1
++ != '<' || p
[-2] != '>')
2135 fatal_error (input_location
,
2136 "specs %%include syntax malformed after "
2138 (long) (p1
- buffer
+ 1));
2141 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2143 read_specs (new_filename
, false, user_p
);
2144 else if (verbose_flag
)
2145 fnotice (stderr
, "could not find specs file %s\n", p1
);
2148 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2149 && (p1
[sizeof "%rename" - 1] == ' '
2150 || p1
[sizeof "%rename" - 1] == '\t'))
2153 struct spec_list
*sl
;
2154 struct spec_list
*newsl
;
2156 /* Get original name. */
2157 p1
+= sizeof "%rename";
2158 while (*p1
== ' ' || *p1
== '\t')
2161 if (! ISALPHA ((unsigned char) *p1
))
2162 fatal_error (input_location
,
2163 "specs %%rename syntax malformed after "
2165 (long) (p1
- buffer
));
2168 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2171 if (*p2
!= ' ' && *p2
!= '\t')
2172 fatal_error (input_location
,
2173 "specs %%rename syntax malformed after "
2175 (long) (p2
- buffer
));
2179 while (*p2
== ' ' || *p2
== '\t')
2182 if (! ISALPHA ((unsigned char) *p2
))
2183 fatal_error (input_location
,
2184 "specs %%rename syntax malformed after "
2186 (long) (p2
- buffer
));
2188 /* Get new spec name. */
2190 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2194 fatal_error (input_location
,
2195 "specs %%rename syntax malformed after "
2197 (long) (p3
- buffer
));
2200 for (sl
= specs
; sl
; sl
= sl
->next
)
2201 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2205 fatal_error (input_location
,
2206 "specs %s spec was not found to be renamed", p1
);
2208 if (strcmp (p1
, p2
) == 0)
2211 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2212 if (strcmp (newsl
->name
, p2
) == 0)
2213 fatal_error (input_location
,
2214 "%s: attempt to rename spec %qs to "
2215 "already defined spec %qs",
2220 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
2222 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2226 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2228 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2230 *(sl
->ptr_spec
) = "";
2235 fatal_error (input_location
,
2236 "specs unknown %% command after %ld characters",
2237 (long) (p1
- buffer
));
2240 /* Find the colon that should end the suffix. */
2242 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2245 /* The colon shouldn't be missing. */
2247 fatal_error (input_location
,
2248 "specs file malformed after %ld characters",
2249 (long) (p1
- buffer
));
2251 /* Skip back over trailing whitespace. */
2253 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2256 /* Copy the suffix to a string. */
2257 suffix
= save_string (p
, p2
- p
);
2258 /* Find the next line. */
2259 p
= skip_whitespace (p1
+ 1);
2261 fatal_error (input_location
,
2262 "specs file malformed after %ld characters",
2263 (long) (p
- buffer
));
2266 /* Find next blank line or end of string. */
2267 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2270 /* Specs end at the blank line and do not include the newline. */
2271 spec
= save_string (p
, p1
- p
);
2274 /* Delete backslash-newline sequences from the spec. */
2279 if (in
[0] == '\\' && in
[1] == '\n')
2281 else if (in
[0] == '#')
2282 while (*in
&& *in
!= '\n')
2290 if (suffix
[0] == '*')
2292 if (! strcmp (suffix
, "*link_command"))
2293 link_command_spec
= spec
;
2296 set_spec (suffix
+ 1, spec
, user_p
);
2302 /* Add this pair to the vector. */
2304 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2306 compilers
[n_compilers
].suffix
= suffix
;
2307 compilers
[n_compilers
].spec
= spec
;
2309 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2313 link_command_spec
= spec
;
2316 if (link_command_spec
== 0)
2317 fatal_error (input_location
, "spec file has no spec for linking");
2319 XDELETEVEC (buffer
);
2322 /* Record the names of temporary files we tell compilers to write,
2323 and delete them at the end of the run. */
2325 /* This is the common prefix we use to make temp file names.
2326 It is chosen once for each run of this program.
2327 It is substituted into a spec by %g or %j.
2328 Thus, all temp file names contain this prefix.
2329 In practice, all temp file names start with this prefix.
2331 This prefix comes from the envvar TMPDIR if it is defined;
2332 otherwise, from the P_tmpdir macro if that is defined;
2333 otherwise, in /usr/tmp or /tmp;
2334 or finally the current directory if all else fails. */
2336 static const char *temp_filename
;
2338 /* Length of the prefix. */
2340 static int temp_filename_length
;
2342 /* Define the list of temporary files to delete. */
2347 struct temp_file
*next
;
2350 /* Queue of files to delete on success or failure of compilation. */
2351 static struct temp_file
*always_delete_queue
;
2352 /* Queue of files to delete on failure of compilation. */
2353 static struct temp_file
*failure_delete_queue
;
2355 /* Record FILENAME as a file to be deleted automatically.
2356 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2357 otherwise delete it in any case.
2358 FAIL_DELETE nonzero means delete it if a compilation step fails;
2359 otherwise delete it in any case. */
2362 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2364 char *const name
= xstrdup (filename
);
2368 struct temp_file
*temp
;
2369 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2370 if (! filename_cmp (name
, temp
->name
))
2376 temp
= XNEW (struct temp_file
);
2377 temp
->next
= always_delete_queue
;
2379 always_delete_queue
= temp
;
2386 struct temp_file
*temp
;
2387 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2388 if (! filename_cmp (name
, temp
->name
))
2394 temp
= XNEW (struct temp_file
);
2395 temp
->next
= failure_delete_queue
;
2397 failure_delete_queue
= temp
;
2403 /* Delete all the temporary files whose names we previously recorded. */
2405 #ifndef DELETE_IF_ORDINARY
2406 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2409 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2410 if (unlink (NAME) < 0) \
2412 perror_with_name (NAME); \
2417 delete_if_ordinary (const char *name
)
2423 printf ("Delete %s? (y or n) ", name
);
2427 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2430 if (i
== 'y' || i
== 'Y')
2432 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2436 delete_temp_files (void)
2438 struct temp_file
*temp
;
2440 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2441 delete_if_ordinary (temp
->name
);
2442 always_delete_queue
= 0;
2445 /* Delete all the files to be deleted on error. */
2448 delete_failure_queue (void)
2450 struct temp_file
*temp
;
2452 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2453 delete_if_ordinary (temp
->name
);
2457 clear_failure_queue (void)
2459 failure_delete_queue
= 0;
2462 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2464 If DO_MULTI is true iterate over the paths twice, first with multilib
2465 suffix then without, otherwise iterate over the paths once without
2466 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2467 to avoid visiting the same path twice, but we could do better. For
2468 instance, /usr/lib/../lib is considered different from /usr/lib.
2469 At least EXTRA_SPACE chars past the end of the path passed to
2470 CALLBACK are available for use by the callback.
2471 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2473 Returns the value returned by CALLBACK. */
2476 for_each_path (const struct path_prefix
*paths
,
2479 void *(*callback
) (char *, void *),
2480 void *callback_info
)
2482 struct prefix_list
*pl
;
2483 const char *multi_dir
= NULL
;
2484 const char *multi_os_dir
= NULL
;
2485 const char *multiarch_suffix
= NULL
;
2486 const char *multi_suffix
;
2487 const char *just_multi_suffix
;
2490 bool skip_multi_dir
= false;
2491 bool skip_multi_os_dir
= false;
2493 multi_suffix
= machine_suffix
;
2494 just_multi_suffix
= just_machine_suffix
;
2495 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2497 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2498 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2499 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2501 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2502 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2504 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2508 size_t multi_dir_len
= 0;
2509 size_t multi_os_dir_len
= 0;
2510 size_t multiarch_len
= 0;
2512 size_t just_suffix_len
;
2516 multi_dir_len
= strlen (multi_dir
);
2518 multi_os_dir_len
= strlen (multi_os_dir
);
2519 if (multiarch_suffix
)
2520 multiarch_len
= strlen (multiarch_suffix
);
2521 suffix_len
= strlen (multi_suffix
);
2522 just_suffix_len
= strlen (just_multi_suffix
);
2526 len
= paths
->max_len
+ extra_space
+ 1;
2527 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2528 path
= XNEWVEC (char, len
);
2531 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2533 len
= strlen (pl
->prefix
);
2534 memcpy (path
, pl
->prefix
, len
);
2536 /* Look first in MACHINE/VERSION subdirectory. */
2537 if (!skip_multi_dir
)
2539 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2540 ret
= callback (path
, callback_info
);
2545 /* Some paths are tried with just the machine (ie. target)
2546 subdir. This is used for finding as, ld, etc. */
2548 && pl
->require_machine_suffix
== 2)
2550 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2551 ret
= callback (path
, callback_info
);
2556 /* Now try the multiarch path. */
2558 && !pl
->require_machine_suffix
&& multiarch_dir
)
2560 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2561 ret
= callback (path
, callback_info
);
2566 /* Now try the base path. */
2567 if (!pl
->require_machine_suffix
2568 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2570 const char *this_multi
;
2571 size_t this_multi_len
;
2573 if (pl
->os_multilib
)
2575 this_multi
= multi_os_dir
;
2576 this_multi_len
= multi_os_dir_len
;
2580 this_multi
= multi_dir
;
2581 this_multi_len
= multi_dir_len
;
2585 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2589 ret
= callback (path
, callback_info
);
2597 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2600 /* Run through the paths again, this time without multilibs.
2601 Don't repeat any we have already seen. */
2604 free (CONST_CAST (char *, multi_dir
));
2606 free (CONST_CAST (char *, multi_suffix
));
2607 multi_suffix
= machine_suffix
;
2608 free (CONST_CAST (char *, just_multi_suffix
));
2609 just_multi_suffix
= just_machine_suffix
;
2612 skip_multi_dir
= true;
2615 free (CONST_CAST (char *, multi_os_dir
));
2616 multi_os_dir
= NULL
;
2619 skip_multi_os_dir
= true;
2624 free (CONST_CAST (char *, multi_dir
));
2625 free (CONST_CAST (char *, multi_suffix
));
2626 free (CONST_CAST (char *, just_multi_suffix
));
2629 free (CONST_CAST (char *, multi_os_dir
));
2635 /* Callback for build_search_list. Adds path to obstack being built. */
2637 struct add_to_obstack_info
{
2644 add_to_obstack (char *path
, void *data
)
2646 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2648 if (info
->check_dir
&& !is_directory (path
, false))
2651 if (!info
->first_time
)
2652 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2654 obstack_grow (info
->ob
, path
, strlen (path
));
2656 info
->first_time
= false;
2660 /* Add or change the value of an environment variable, outputting the
2661 change to standard error if in verbose mode. */
2663 xputenv (const char *string
)
2668 /* Build a list of search directories from PATHS.
2669 PREFIX is a string to prepend to the list.
2670 If CHECK_DIR_P is true we ensure the directory exists.
2671 If DO_MULTI is true, multilib paths are output first, then
2673 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2674 It is also used by the --print-search-dirs flag. */
2677 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2678 bool check_dir
, bool do_multi
)
2680 struct add_to_obstack_info info
;
2682 info
.ob
= &collect_obstack
;
2683 info
.check_dir
= check_dir
;
2684 info
.first_time
= true;
2686 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2687 obstack_1grow (&collect_obstack
, '=');
2689 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2691 obstack_1grow (&collect_obstack
, '\0');
2692 return XOBFINISH (&collect_obstack
, char *);
2695 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2699 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2702 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2705 /* Check whether NAME can be accessed in MODE. This is like access,
2706 except that it never considers directories to be executable. */
2709 access_check (const char *name
, int mode
)
2715 if (stat (name
, &st
) < 0
2716 || S_ISDIR (st
.st_mode
))
2720 return access (name
, mode
);
2723 /* Callback for find_a_file. Appends the file name to the directory
2724 path. If the resulting file exists in the right mode, return the
2725 full pathname to the file. */
2727 struct file_at_path_info
{
2736 file_at_path (char *path
, void *data
)
2738 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2739 size_t len
= strlen (path
);
2741 memcpy (path
+ len
, info
->name
, info
->name_len
);
2742 len
+= info
->name_len
;
2744 /* Some systems have a suffix for executable files.
2745 So try appending that first. */
2746 if (info
->suffix_len
)
2748 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2749 if (access_check (path
, info
->mode
) == 0)
2754 if (access_check (path
, info
->mode
) == 0)
2760 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2761 access to check permissions. If DO_MULTI is true, search multilib
2762 paths then non-multilib paths, otherwise do not search multilib paths.
2763 Return 0 if not found, otherwise return its name, allocated with malloc. */
2766 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2769 struct file_at_path_info info
;
2771 #ifdef DEFAULT_ASSEMBLER
2772 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2773 return xstrdup (DEFAULT_ASSEMBLER
);
2776 #ifdef DEFAULT_LINKER
2777 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2778 return xstrdup (DEFAULT_LINKER
);
2781 /* Determine the filename to execute (special case for absolute paths). */
2783 if (IS_ABSOLUTE_PATH (name
))
2785 if (access (name
, mode
) == 0)
2786 return xstrdup (name
);
2792 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2793 info
.name_len
= strlen (info
.name
);
2794 info
.suffix_len
= strlen (info
.suffix
);
2797 return (char*) for_each_path (pprefix
, do_multi
,
2798 info
.name_len
+ info
.suffix_len
,
2799 file_at_path
, &info
);
2802 /* Ranking of prefixes in the sort list. -B prefixes are put before
2805 enum path_prefix_priority
2807 PREFIX_PRIORITY_B_OPT
,
2808 PREFIX_PRIORITY_LAST
2811 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2812 order according to PRIORITY. Within each PRIORITY, new entries are
2815 If WARN is nonzero, we will warn if no file is found
2816 through this prefix. WARN should point to an int
2817 which will be set to 1 if this entry is used.
2819 COMPONENT is the value to be passed to update_path.
2821 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2822 the complete value of machine_suffix.
2823 2 means try both machine_suffix and just_machine_suffix. */
2826 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2827 const char *component
, /* enum prefix_priority */ int priority
,
2828 int require_machine_suffix
, int os_multilib
)
2830 struct prefix_list
*pl
, **prev
;
2833 for (prev
= &pprefix
->plist
;
2834 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2835 prev
= &(*prev
)->next
)
2838 /* Keep track of the longest prefix. */
2840 prefix
= update_path (prefix
, component
);
2841 len
= strlen (prefix
);
2842 if (len
> pprefix
->max_len
)
2843 pprefix
->max_len
= len
;
2845 pl
= XNEW (struct prefix_list
);
2846 pl
->prefix
= prefix
;
2847 pl
->require_machine_suffix
= require_machine_suffix
;
2848 pl
->priority
= priority
;
2849 pl
->os_multilib
= os_multilib
;
2851 /* Insert after PREV. */
2856 /* Same as add_prefix, but prepending target_system_root to prefix. */
2857 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2859 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2860 const char *component
,
2861 /* enum prefix_priority */ int priority
,
2862 int require_machine_suffix
, int os_multilib
)
2864 if (!IS_ABSOLUTE_PATH (prefix
))
2865 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
2867 if (target_system_root
)
2869 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2870 size_t sysroot_len
= strlen (target_system_root
);
2873 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2874 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2876 if (target_sysroot_suffix
)
2877 prefix
= concat (sysroot_no_trailing_dir_separator
,
2878 target_sysroot_suffix
, prefix
, NULL
);
2880 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2882 free (sysroot_no_trailing_dir_separator
);
2884 /* We have to override this because GCC's notion of sysroot
2885 moves along with GCC. */
2889 add_prefix (pprefix
, prefix
, component
, priority
,
2890 require_machine_suffix
, os_multilib
);
2893 /* Execute the command specified by the arguments on the current line of spec.
2894 When using pipes, this includes several piped-together commands
2895 with `|' between them.
2897 Return 0 if successful, -1 if failed. */
2903 int n_commands
; /* # of command. */
2905 struct pex_obj
*pex
;
2908 const char *prog
; /* program name. */
2909 const char **argv
; /* vector of args. */
2913 struct command
*commands
; /* each command buffer with above info. */
2915 gcc_assert (!processing_spec_function
);
2919 string
= find_a_file (&exec_prefixes
,
2920 argbuf
[0], X_OK
, false);
2923 insert_wrapper (wrapper_string
);
2926 /* Count # of piped commands. */
2927 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2928 if (strcmp (arg
, "|") == 0)
2931 /* Get storage for each command. */
2932 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2934 /* Split argbuf into its separate piped processes,
2935 and record info about each one.
2936 Also search for the programs that are to be run. */
2938 argbuf
.safe_push (0);
2940 commands
[0].prog
= argbuf
[0]; /* first command. */
2941 commands
[0].argv
= argbuf
.address ();
2943 if (!wrapper_string
)
2945 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2946 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2949 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2950 if (arg
&& strcmp (arg
, "|") == 0)
2951 { /* each command. */
2952 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2953 fatal_error (input_location
, "-pipe not supported");
2955 argbuf
[i
] = 0; /* Termination of
2957 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2958 commands
[n_commands
].argv
2959 = &(argbuf
.address ())[i
+ 1];
2960 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2963 commands
[n_commands
].argv
[0] = string
;
2967 /* If -v, print what we are about to do, and maybe query. */
2971 /* For help listings, put a blank line between sub-processes. */
2972 if (print_help_list
)
2973 fputc ('\n', stderr
);
2975 /* Print each piped command as a separate line. */
2976 for (i
= 0; i
< n_commands
; i
++)
2978 const char *const *j
;
2980 if (verbose_only_flag
)
2982 for (j
= commands
[i
].argv
; *j
; j
++)
2985 for (p
= *j
; *p
; ++p
)
2986 if (!ISALNUM ((unsigned char) *p
)
2987 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
2991 fprintf (stderr
, " \"");
2992 for (p
= *j
; *p
; ++p
)
2994 if (*p
== '"' || *p
== '\\' || *p
== '$')
2995 fputc ('\\', stderr
);
2998 fputc ('"', stderr
);
3000 /* If it's empty, print "". */
3002 fprintf (stderr
, " \"\"");
3004 fprintf (stderr
, " %s", *j
);
3008 for (j
= commands
[i
].argv
; *j
; j
++)
3009 /* If it's empty, print "". */
3011 fprintf (stderr
, " \"\"");
3013 fprintf (stderr
, " %s", *j
);
3015 /* Print a pipe symbol after all but the last command. */
3016 if (i
+ 1 != n_commands
)
3017 fprintf (stderr
, " |");
3018 fprintf (stderr
, "\n");
3021 if (verbose_only_flag
!= 0)
3023 /* verbose_only_flag should act as if the spec was
3024 executed, so increment execution_count before
3025 returning. This prevents spurious warnings about
3026 unused linker input files, etc. */
3031 fnotice (stderr
, "\nGo ahead? (y or n) ");
3035 while (getchar () != '\n')
3038 if (i
!= 'y' && i
!= 'Y')
3043 #ifdef ENABLE_VALGRIND_CHECKING
3044 /* Run the each command through valgrind. To simplify prepending the
3045 path to valgrind and the option "-q" (for quiet operation unless
3046 something triggers), we allocate a separate argv array. */
3048 for (i
= 0; i
< n_commands
; i
++)
3054 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3057 argv
= XALLOCAVEC (const char *, argc
+ 3);
3059 argv
[0] = VALGRIND_PATH
;
3061 for (j
= 2; j
< argc
+ 2; j
++)
3062 argv
[j
] = commands
[i
].argv
[j
- 2];
3065 commands
[i
].argv
= argv
;
3066 commands
[i
].prog
= argv
[0];
3070 /* Run each piped subprocess. */
3072 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3073 ? PEX_RECORD_TIMES
: 0),
3074 progname
, temp_filename
);
3076 fatal_error (input_location
, "pex_init failed: %m");
3078 for (i
= 0; i
< n_commands
; i
++)
3082 const char *string
= commands
[i
].argv
[0];
3084 errmsg
= pex_run (pex
,
3085 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3086 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3087 string
, CONST_CAST (char **, commands
[i
].argv
),
3092 fatal_error (input_location
, errmsg
);
3096 pfatal_with_name (errmsg
);
3100 if (i
&& string
!= commands
[i
].prog
)
3101 free (CONST_CAST (char *, string
));
3106 /* Wait for all the subprocesses to finish. */
3110 struct pex_time
*times
= NULL
;
3113 statuses
= (int *) alloca (n_commands
* sizeof (int));
3114 if (!pex_get_status (pex
, n_commands
, statuses
))
3115 fatal_error (input_location
, "failed to get exit status: %m");
3117 if (report_times
|| report_times_to_file
)
3119 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3120 if (!pex_get_times (pex
, n_commands
, times
))
3121 fatal_error (input_location
, "failed to get process times: %m");
3126 for (i
= 0; i
< n_commands
; ++i
)
3128 int status
= statuses
[i
];
3130 if (WIFSIGNALED (status
))
3133 /* SIGPIPE is a special case. It happens in -pipe mode
3134 when the compiler dies before the preprocessor is done,
3135 or the assembler dies before the compiler is done.
3136 There's generally been an error already, and this is
3137 just fallout. So don't generate another error unless
3138 we would otherwise have succeeded. */
3139 if (WTERMSIG (status
) == SIGPIPE
3140 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3147 internal_error_no_backtrace ("%s (program %s)",
3148 strsignal (WTERMSIG (status
)),
3151 else if (WIFEXITED (status
)
3152 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3154 /* For ICEs in cc1, cc1obj, cc1plus see if it is
3155 reproducible or not. */
3158 && WEXITSTATUS (status
) == ICE_EXIT_CODE
3160 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
3161 && ! strncmp (p
+ 1, "cc1", 3))
3162 try_generate_repro (commands
[0].argv
);
3163 if (WEXITSTATUS (status
) > greatest_status
)
3164 greatest_status
= WEXITSTATUS (status
);
3168 if (report_times
|| report_times_to_file
)
3170 struct pex_time
*pt
= ×
[i
];
3173 ut
= ((double) pt
->user_seconds
3174 + (double) pt
->user_microseconds
/ 1.0e6
);
3175 st
= ((double) pt
->system_seconds
3176 + (double) pt
->system_microseconds
/ 1.0e6
);
3181 fnotice (stderr
, "# %s %.2f %.2f\n",
3182 commands
[i
].prog
, ut
, st
);
3184 if (report_times_to_file
)
3187 const char *const *j
;
3189 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3191 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3194 for (p
= *j
; *p
; ++p
)
3195 if (*p
== '"' || *p
== '\\' || *p
== '$'
3201 fprintf (report_times_to_file
, " \"");
3202 for (p
= *j
; *p
; ++p
)
3204 if (*p
== '"' || *p
== '\\' || *p
== '$')
3205 fputc ('\\', report_times_to_file
);
3206 fputc (*p
, report_times_to_file
);
3208 fputc ('"', report_times_to_file
);
3211 fprintf (report_times_to_file
, " %s", *j
);
3214 fputc ('\n', report_times_to_file
);
3220 if (commands
[0].argv
[0] != commands
[0].prog
)
3221 free (CONST_CAST (char *, commands
[0].argv
[0]));
3227 /* Find all the switches given to us
3228 and make a vector describing them.
3229 The elements of the vector are strings, one per switch given.
3230 If a switch uses following arguments, then the `part1' field
3231 is the switch itself and the `args' field
3232 is a null-terminated vector containing the following arguments.
3233 Bits in the `live_cond' field are:
3234 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3235 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3236 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3237 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored.
3238 SWITCH_KEEP_FOR_GCC to indicate that this switch, otherwise ignored,
3239 should be included in COLLECT_GCC_OPTIONS.
3240 in all do_spec calls afterwards. Used for %<S from self specs.
3241 The `known' field describes whether this is an internal switch.
3242 The `validated' field describes whether any spec has looked at this switch;
3243 if it remains false at the end of the run, the switch must be meaningless.
3244 The `ordering' field is used to temporarily mark switches that have to be
3245 kept in a specific order. */
3247 #define SWITCH_LIVE (1 << 0)
3248 #define SWITCH_FALSE (1 << 1)
3249 #define SWITCH_IGNORE (1 << 2)
3250 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
3251 #define SWITCH_KEEP_FOR_GCC (1 << 4)
3257 unsigned int live_cond
;
3263 static struct switchstr
*switches
;
3265 static int n_switches
;
3267 static int n_switches_alloc
;
3269 /* Set to zero if -fcompare-debug is disabled, positive if it's
3270 enabled and we're running the first compilation, negative if it's
3271 enabled and we're running the second compilation. For most of the
3272 time, it's in the range -1..1, but it can be temporarily set to 2
3273 or 3 to indicate that the -fcompare-debug flags didn't come from
3274 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3275 variable, until a synthesized -fcompare-debug flag is added to the
3279 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3280 int compare_debug_second
;
3282 /* Set to the flags that should be passed to the second compilation in
3283 a -fcompare-debug compilation. */
3284 const char *compare_debug_opt
;
3286 static struct switchstr
*switches_debug_check
[2];
3288 static int n_switches_debug_check
[2];
3290 static int n_switches_alloc_debug_check
[2];
3292 static char *debug_check_temp_file
[2];
3294 /* Language is one of three things:
3296 1) The name of a real programming language.
3297 2) NULL, indicating that no one has figured out
3299 3) '*', indicating that the file should be passed
3304 const char *language
;
3305 struct compiler
*incompiler
;
3310 /* Also a vector of input files specified. */
3312 static struct infile
*infiles
;
3316 static int n_infiles_alloc
;
3318 /* True if undefined environment variables encountered during spec processing
3319 are ok to ignore, typically when we're running for --help or --version. */
3321 static bool spec_undefvar_allowed
;
3323 /* True if multiple input files are being compiled to a single
3326 static bool combine_inputs
;
3328 /* This counts the number of libraries added by lang_specific_driver, so that
3329 we can tell if there were any user supplied any files or libraries. */
3331 static int added_libraries
;
3333 /* And a vector of corresponding output files is made up later. */
3335 const char **outfiles
;
3337 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3339 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3340 is true if we should look for an executable suffix. DO_OBJ
3341 is true if we should look for an object suffix. */
3344 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3345 int do_obj ATTRIBUTE_UNUSED
)
3347 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3355 len
= strlen (name
);
3357 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3358 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3359 if (do_obj
&& len
> 2
3360 && name
[len
- 2] == '.'
3361 && name
[len
- 1] == 'o')
3363 obstack_grow (&obstack
, name
, len
- 2);
3364 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3365 name
= XOBFINISH (&obstack
, const char *);
3369 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3370 /* If there is no filetype, make it the executable suffix (which includes
3371 the "."). But don't get confused if we have just "-o". */
3372 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3375 for (i
= len
- 1; i
>= 0; i
--)
3376 if (IS_DIR_SEPARATOR (name
[i
]))
3379 for (i
++; i
< len
; i
++)
3383 obstack_grow (&obstack
, name
, len
);
3384 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3385 strlen (TARGET_EXECUTABLE_SUFFIX
));
3386 name
= XOBFINISH (&obstack
, const char *);
3393 /* Display the command line switches accepted by gcc. */
3397 printf (_("Usage: %s [options] file...\n"), progname
);
3398 fputs (_("Options:\n"), stdout
);
3400 fputs (_(" -pass-exit-codes Exit with highest error code from a phase.\n"), stdout
);
3401 fputs (_(" --help Display this information.\n"), stdout
);
3402 fputs (_(" --target-help Display target specific command line options.\n"), stdout
);
3403 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...].\n"), stdout
);
3404 fputs (_(" Display specific types of command line options.\n"), stdout
);
3406 fputs (_(" (Use '-v --help' to display command line options of sub-processes).\n"), stdout
);
3407 fputs (_(" --version Display compiler version information.\n"), stdout
);
3408 fputs (_(" -dumpspecs Display all of the built in spec strings.\n"), stdout
);
3409 fputs (_(" -dumpversion Display the version of the compiler.\n"), stdout
);
3410 fputs (_(" -dumpmachine Display the compiler's target processor.\n"), stdout
);
3411 fputs (_(" -print-search-dirs Display the directories in the compiler's search path.\n"), stdout
);
3412 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library.\n"), stdout
);
3413 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>.\n"), stdout
);
3414 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>.\n"), stdout
);
3416 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3417 a component in the library path.\n"), stdout
);
3418 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc.\n"), stdout
);
3420 -print-multi-lib Display the mapping between command line options and\n\
3421 multiple library search directories.\n"), stdout
);
3422 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries.\n"), stdout
);
3423 fputs (_(" -print-sysroot Display the target libraries directory.\n"), stdout
);
3424 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers.\n"), stdout
);
3425 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler.\n"), stdout
);
3426 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor.\n"), stdout
);
3427 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker.\n"), stdout
);
3428 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler.\n"), stdout
);
3429 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor.\n"), stdout
);
3430 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker.\n"), stdout
);
3431 fputs (_(" -save-temps Do not delete intermediate files.\n"), stdout
);
3432 fputs (_(" -save-temps=<arg> Do not delete intermediate files.\n"), stdout
);
3434 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3435 prefixes to other gcc components.\n"), stdout
);
3436 fputs (_(" -pipe Use pipes rather than intermediate files.\n"), stdout
);
3437 fputs (_(" -time Time the execution of each subprocess.\n"), stdout
);
3438 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>.\n"), stdout
);
3439 fputs (_(" -std=<standard> Assume that the input sources are for <standard>.\n"), stdout
);
3441 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3442 and libraries.\n"), stdout
);
3443 fputs (_(" -B <directory> Add <directory> to the compiler's search paths.\n"), stdout
);
3444 fputs (_(" -v Display the programs invoked by the compiler.\n"), stdout
);
3445 fputs (_(" -### Like -v but options quoted and commands not executed.\n"), stdout
);
3446 fputs (_(" -E Preprocess only; do not compile, assemble or link.\n"), stdout
);
3447 fputs (_(" -S Compile only; do not assemble or link.\n"), stdout
);
3448 fputs (_(" -c Compile and assemble, but do not link.\n"), stdout
);
3449 fputs (_(" -o <file> Place the output into <file>.\n"), stdout
);
3450 fputs (_(" -pie Create a position independent executable.\n"), stdout
);
3451 fputs (_(" -shared Create a shared library.\n"), stdout
);
3453 -x <language> Specify the language of the following input files.\n\
3454 Permissible languages include: c c++ assembler none\n\
3455 'none' means revert to the default behavior of\n\
3456 guessing the language based on the file's extension.\n\
3460 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3461 passed on to the various sub-processes invoked by %s. In order to pass\n\
3462 other options on to these processes the -W<letter> options must be used.\n\
3465 /* The rest of the options are displayed by invocations of the various
3470 add_preprocessor_option (const char *option
, int len
)
3472 preprocessor_options
.safe_push (save_string (option
, len
));
3476 add_assembler_option (const char *option
, int len
)
3478 assembler_options
.safe_push (save_string (option
, len
));
3482 add_linker_option (const char *option
, int len
)
3484 linker_options
.safe_push (save_string (option
, len
));
3487 /* Allocate space for an input file in infiles. */
3492 if (n_infiles_alloc
== 0)
3494 n_infiles_alloc
= 16;
3495 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3497 else if (n_infiles_alloc
== n_infiles
)
3499 n_infiles_alloc
*= 2;
3500 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3504 /* Store an input file with the given NAME and LANGUAGE in
3508 add_infile (const char *name
, const char *language
)
3511 infiles
[n_infiles
].name
= name
;
3512 infiles
[n_infiles
++].language
= language
;
3515 /* Allocate space for a switch in switches. */
3520 if (n_switches_alloc
== 0)
3522 n_switches_alloc
= 16;
3523 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3525 else if (n_switches_alloc
== n_switches
)
3527 n_switches_alloc
*= 2;
3528 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3532 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3533 as validated if VALIDATED and KNOWN if it is an internal switch. */
3536 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3537 bool validated
, bool known
)
3540 switches
[n_switches
].part1
= opt
+ 1;
3542 switches
[n_switches
].args
= 0;
3545 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3546 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3547 switches
[n_switches
].args
[n_args
] = NULL
;
3550 switches
[n_switches
].live_cond
= 0;
3551 switches
[n_switches
].validated
= validated
;
3552 switches
[n_switches
].known
= known
;
3553 switches
[n_switches
].ordering
= 0;
3557 /* Set the SOURCE_DATE_EPOCH environment variable to the current time if it is
3561 set_source_date_epoch_envvar ()
3563 /* Array size is 21 = ceil(log_10(2^64)) + 1 to hold string representations
3564 of 64 bit integers. */
3565 char source_date_epoch
[21];
3570 if (tt
< (time_t) 0 || errno
!= 0)
3573 snprintf (source_date_epoch
, 21, "%llu", (unsigned long long) tt
);
3574 /* Using setenv instead of xputenv because we want the variable to remain
3575 after finalizing so that it's still set in the second run when using
3577 setenv ("SOURCE_DATE_EPOCH", source_date_epoch
, 0);
3580 /* Handle an option DECODED that is unknown to the option-processing
3584 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3586 const char *opt
= decoded
->arg
;
3587 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3588 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3590 /* Leave unknown -Wno-* options for the compiler proper, to be
3591 diagnosed only if there are warnings. */
3592 save_switch (decoded
->canonical_option
[0],
3593 decoded
->canonical_option_num_elements
- 1,
3594 &decoded
->canonical_option
[1], false, true);
3597 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3599 /* Give it a chance to define it a spec file. */
3600 save_switch (decoded
->canonical_option
[0],
3601 decoded
->canonical_option_num_elements
- 1,
3602 &decoded
->canonical_option
[1], false, false);
3609 /* Handle an option DECODED that is not marked as CL_DRIVER.
3610 LANG_MASK will always be CL_DRIVER. */
3613 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3614 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3616 /* At this point, non-driver options are accepted (and expected to
3617 be passed down by specs) unless marked to be rejected by the
3618 driver. Options to be rejected by the driver but accepted by the
3619 compilers proper are treated just like completely unknown
3621 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3623 if (option
->cl_reject_driver
)
3624 error ("unrecognized command line option %qs",
3625 decoded
->orig_option_with_args_text
);
3627 save_switch (decoded
->canonical_option
[0],
3628 decoded
->canonical_option_num_elements
- 1,
3629 &decoded
->canonical_option
[1], false, true);
3632 static const char *spec_lang
= 0;
3633 static int last_language_n_infiles
;
3635 /* Parse -foffload option argument. */
3638 handle_foffload_option (const char *arg
)
3640 const char *c
, *cur
, *n
, *next
, *end
;
3643 /* If option argument starts with '-' then no target is specified and we
3644 do not need to parse it. */
3648 end
= strchr (arg
, '=');
3650 end
= strchr (arg
, '\0');
3655 next
= strchr (cur
, ',');
3658 next
= (next
> end
) ? end
: next
;
3660 target
= XNEWVEC (char, next
- cur
+ 1);
3661 memcpy (target
, cur
, next
- cur
);
3662 target
[next
- cur
] = '\0';
3664 /* If 'disable' is passed to the option, stop parsing the option and clean
3665 the list of offload targets. */
3666 if (strcmp (target
, "disable") == 0)
3668 free (offload_targets
);
3669 offload_targets
= xstrdup ("");
3673 /* Check that GCC is configured to support the offload target. */
3674 c
= OFFLOAD_TARGETS
;
3677 n
= strchr (c
, ',');
3679 n
= strchr (c
, '\0');
3681 if (next
- cur
== n
- c
&& strncmp (target
, c
, n
- c
) == 0)
3684 c
= *n
? n
+ 1 : NULL
;
3688 fatal_error (input_location
,
3689 "GCC is not configured to support %s as offload target",
3692 if (!offload_targets
)
3694 offload_targets
= target
;
3699 /* Check that the target hasn't already presented in the list. */
3700 c
= offload_targets
;
3703 n
= strchr (c
, ':');
3705 n
= strchr (c
, '\0');
3707 if (next
- cur
== n
- c
&& strncmp (c
, target
, n
- c
) == 0)
3714 /* If duplicate is not found, append the target to the list. */
3717 size_t offload_targets_len
= strlen (offload_targets
);
3719 = XRESIZEVEC (char, offload_targets
,
3720 offload_targets_len
+ 1 + next
- cur
+ 1);
3721 offload_targets
[offload_targets_len
++] = ':';
3722 memcpy (offload_targets
+ offload_targets_len
, target
, next
- cur
+ 1);
3727 XDELETEVEC (target
);
3731 /* Handle a driver option; arguments and return value as for
3735 driver_handle_option (struct gcc_options
*opts
,
3736 struct gcc_options
*opts_set
,
3737 const struct cl_decoded_option
*decoded
,
3738 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3740 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3741 diagnostic_context
*dc
)
3743 size_t opt_index
= decoded
->opt_index
;
3744 const char *arg
= decoded
->arg
;
3745 const char *compare_debug_replacement_opt
;
3746 int value
= decoded
->value
;
3747 bool validated
= false;
3748 bool do_save
= true;
3750 gcc_assert (opts
== &global_options
);
3751 gcc_assert (opts_set
== &global_options_set
);
3752 gcc_assert (kind
== DK_UNSPECIFIED
);
3753 gcc_assert (loc
== UNKNOWN_LOCATION
);
3754 gcc_assert (dc
== global_dc
);
3760 struct spec_list
*sl
;
3762 for (sl
= specs
; sl
; sl
= sl
->next
)
3763 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3764 if (link_command_spec
)
3765 printf ("*link_command:\n%s\n\n", link_command_spec
);
3769 case OPT_dumpversion
:
3770 printf ("%s\n", spec_version
);
3773 case OPT_dumpmachine
:
3774 printf ("%s\n", spec_machine
);
3780 /* CPP driver cannot obtain switch from cc1_options. */
3782 add_preprocessor_option ("--version", strlen ("--version"));
3783 add_assembler_option ("--version", strlen ("--version"));
3784 add_linker_option ("--version", strlen ("--version"));
3788 print_help_list
= 1;
3790 /* CPP driver cannot obtain switch from cc1_options. */
3792 add_preprocessor_option ("--help", 6);
3793 add_assembler_option ("--help", 6);
3794 add_linker_option ("--help", 6);
3798 print_subprocess_help
= 2;
3801 case OPT__target_help
:
3802 print_subprocess_help
= 1;
3804 /* CPP driver cannot obtain switch from cc1_options. */
3806 add_preprocessor_option ("--target-help", 13);
3807 add_assembler_option ("--target-help", 13);
3808 add_linker_option ("--target-help", 13);
3811 case OPT__no_sysroot_suffix
:
3812 case OPT_pass_exit_codes
:
3813 case OPT_print_search_dirs
:
3814 case OPT_print_file_name_
:
3815 case OPT_print_prog_name_
:
3816 case OPT_print_multi_lib
:
3817 case OPT_print_multi_directory
:
3818 case OPT_print_sysroot
:
3819 case OPT_print_multi_os_directory
:
3820 case OPT_print_multiarch
:
3821 case OPT_print_sysroot_headers_suffix
:
3824 /* These options set the variables specified in common.opt
3825 automatically, and do not need to be saved for spec
3830 case OPT_print_libgcc_file_name
:
3831 print_file_name
= "libgcc.a";
3835 case OPT_fuse_ld_bfd
:
3839 case OPT_fuse_ld_gold
:
3843 case OPT_fcompare_debug_second
:
3844 compare_debug_second
= 1;
3847 case OPT_fcompare_debug
:
3851 compare_debug_replacement_opt
= "-fcompare-debug=";
3853 goto compare_debug_with_arg
;
3856 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3858 goto compare_debug_with_arg
;
3865 case OPT_fcompare_debug_
:
3866 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3867 compare_debug_with_arg
:
3868 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3869 gcc_assert (arg
!= NULL
);
3874 if (compare_debug
< 0)
3875 compare_debug_opt
= NULL
;
3877 compare_debug_opt
= arg
;
3878 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
3879 set_source_date_epoch_envvar ();
3882 case OPT_fdiagnostics_color_
:
3883 diagnostic_color_init (dc
, value
);
3889 /* Pass the rest of this option to the assembler. */
3891 /* Split the argument at commas. */
3893 for (j
= 0; arg
[j
]; j
++)
3896 add_assembler_option (arg
+ prev
, j
- prev
);
3900 /* Record the part after the last comma. */
3901 add_assembler_option (arg
+ prev
, j
- prev
);
3909 /* Pass the rest of this option to the preprocessor. */
3911 /* Split the argument at commas. */
3913 for (j
= 0; arg
[j
]; j
++)
3916 add_preprocessor_option (arg
+ prev
, j
- prev
);
3920 /* Record the part after the last comma. */
3921 add_preprocessor_option (arg
+ prev
, j
- prev
);
3929 /* Split the argument at commas. */
3931 for (j
= 0; arg
[j
]; j
++)
3934 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3937 /* Record the part after the last comma. */
3938 add_infile (arg
+ prev
, "*");
3944 add_infile (arg
, "*");
3948 case OPT_Xpreprocessor
:
3949 add_preprocessor_option (arg
, strlen (arg
));
3953 case OPT_Xassembler
:
3954 add_assembler_option (arg
, strlen (arg
));
3959 /* POSIX allows separation of -l and the lib arg; canonicalize
3960 by concatenating -l with its arg */
3961 add_infile (concat ("-l", arg
, NULL
), "*");
3966 /* Similarly, canonicalize -L for linkers that may not accept
3967 separate arguments. */
3968 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
3973 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
3976 case OPT_save_temps
:
3977 save_temps_flag
= SAVE_TEMPS_CWD
;
3981 case OPT_save_temps_
:
3982 if (strcmp (arg
, "cwd") == 0)
3983 save_temps_flag
= SAVE_TEMPS_CWD
;
3984 else if (strcmp (arg
, "obj") == 0
3985 || strcmp (arg
, "object") == 0)
3986 save_temps_flag
= SAVE_TEMPS_OBJ
;
3988 fatal_error (input_location
, "%qs is an unknown -save-temps option",
3989 decoded
->orig_option_with_args_text
);
3992 case OPT_no_canonical_prefixes
:
3993 /* Already handled as a special case, so ignored here. */
3999 /* These options set the variables specified in common.opt
4000 automatically, but do need to be saved for spec
4006 struct user_specs
*user
= XNEW (struct user_specs
);
4008 user
->next
= (struct user_specs
*) 0;
4009 user
->filename
= arg
;
4010 if (user_specs_tail
)
4011 user_specs_tail
->next
= user
;
4013 user_specs_head
= user
;
4014 user_specs_tail
= user
;
4020 target_system_root
= arg
;
4021 target_system_root_changed
= 1;
4026 if (report_times_to_file
)
4027 fclose (report_times_to_file
);
4028 report_times_to_file
= fopen (arg
, "a");
4034 This is similar to -v except that there is no execution
4035 of the commands and the echoed arguments are quoted. It
4036 is intended for use in shell scripts to capture the
4037 driver-generated command line. */
4038 verbose_only_flag
++;
4045 size_t len
= strlen (arg
);
4047 /* Catch the case where the user has forgotten to append a
4048 directory separator to the path. Note, they may be using
4049 -B to add an executable name prefix, eg "i386-elf-", in
4050 order to distinguish between multiple installations of
4051 GCC in the same directory. Hence we must check to see
4052 if appending a directory separator actually makes a
4053 valid directory name. */
4054 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
4055 && is_directory (arg
, false))
4057 char *tmp
= XNEWVEC (char, len
+ 2);
4059 tmp
[len
] = DIR_SEPARATOR
;
4064 add_prefix (&exec_prefixes
, arg
, NULL
,
4065 PREFIX_PRIORITY_B_OPT
, 0, 0);
4066 add_prefix (&startfile_prefixes
, arg
, NULL
,
4067 PREFIX_PRIORITY_B_OPT
, 0, 0);
4068 add_prefix (&include_prefixes
, arg
, NULL
,
4069 PREFIX_PRIORITY_B_OPT
, 0, 0);
4076 if (!strcmp (spec_lang
, "none"))
4077 /* Suppress the warning if -xnone comes after the last input
4078 file, because alternate command interfaces like g++ might
4079 find it useful to place -xnone after each input file. */
4082 last_language_n_infiles
= n_infiles
;
4088 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4089 arg
= convert_filename (arg
, ! have_c
, 0);
4092 /* Save the output name in case -save-temps=obj was used. */
4093 save_temps_prefix
= xstrdup (arg
);
4094 /* On some systems, ld cannot handle "-o" without a space. So
4095 split the option from its argument. */
4096 save_switch ("-o", 1, &arg
, validated
, true);
4099 #ifdef ENABLE_DEFAULT_PIE
4101 /* -pie is turned on by default. */
4104 case OPT_static_libgcc
:
4105 case OPT_shared_libgcc
:
4106 case OPT_static_libgfortran
:
4107 case OPT_static_libstdc__
:
4108 /* These are always valid, since gcc.c itself understands the
4109 first two, gfortranspec.c understands -static-libgfortran and
4110 g++spec.c understands -static-libstdc++ */
4119 handle_foffload_option (arg
);
4123 /* Various driver options need no special processing at this
4124 point, having been handled in a prescan above or being
4125 handled by specs. */
4130 save_switch (decoded
->canonical_option
[0],
4131 decoded
->canonical_option_num_elements
- 1,
4132 &decoded
->canonical_option
[1], validated
, true);
4136 /* Put the driver's standard set of option handlers in *HANDLERS. */
4139 set_option_handlers (struct cl_option_handlers
*handlers
)
4141 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
4142 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
4143 handlers
->num_handlers
= 3;
4144 handlers
->handlers
[0].handler
= driver_handle_option
;
4145 handlers
->handlers
[0].mask
= CL_DRIVER
;
4146 handlers
->handlers
[1].handler
= common_handle_option
;
4147 handlers
->handlers
[1].mask
= CL_COMMON
;
4148 handlers
->handlers
[2].handler
= target_handle_option
;
4149 handlers
->handlers
[2].mask
= CL_TARGET
;
4152 /* Create the vector `switches' and its contents.
4153 Store its length in `n_switches'. */
4156 process_command (unsigned int decoded_options_count
,
4157 struct cl_decoded_option
*decoded_options
)
4161 char *tooldir_prefix
, *tooldir_prefix2
;
4162 char *(*get_relative_prefix
) (const char *, const char *,
4163 const char *) = NULL
;
4164 struct cl_option_handlers handlers
;
4167 gcc_exec_prefix
= env
.get ("GCC_EXEC_PREFIX");
4171 added_libraries
= 0;
4173 /* Figure compiler version from version string. */
4175 compiler_version
= temp1
= xstrdup (version_string
);
4177 for (; *temp1
; ++temp1
)
4186 /* Handle any -no-canonical-prefixes flag early, to assign the function
4187 that builds relative prefixes. This function creates default search
4188 paths that are needed later in normal option handling. */
4190 for (j
= 1; j
< decoded_options_count
; j
++)
4192 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
4194 get_relative_prefix
= make_relative_prefix_ignore_links
;
4198 if (! get_relative_prefix
)
4199 get_relative_prefix
= make_relative_prefix
;
4201 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
4202 see if we can create it from the pathname specified in
4203 decoded_options[0].arg. */
4205 gcc_libexec_prefix
= standard_libexec_prefix
;
4207 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
4208 if (!gcc_exec_prefix
)
4210 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4211 standard_bindir_prefix
,
4212 standard_exec_prefix
);
4213 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4214 standard_bindir_prefix
,
4215 standard_libexec_prefix
);
4216 if (gcc_exec_prefix
)
4217 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
4221 /* make_relative_prefix requires a program name, but
4222 GCC_EXEC_PREFIX is typically a directory name with a trailing
4223 / (which is ignored by make_relative_prefix), so append a
4225 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
4226 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
4227 standard_exec_prefix
,
4228 standard_libexec_prefix
);
4230 /* The path is unrelocated, so fallback to the original setting. */
4231 if (!gcc_libexec_prefix
)
4232 gcc_libexec_prefix
= standard_libexec_prefix
;
4238 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
4239 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
4240 or an automatically created GCC_EXEC_PREFIX from
4241 decoded_options[0].arg. */
4243 /* Do language-specific adjustment/addition of flags. */
4244 lang_specific_driver (&decoded_options
, &decoded_options_count
,
4247 if (gcc_exec_prefix
)
4249 int len
= strlen (gcc_exec_prefix
);
4251 if (len
> (int) sizeof ("/lib/gcc/") - 1
4252 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
4254 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
4255 if (IS_DIR_SEPARATOR (*temp
)
4256 && filename_ncmp (temp
+ 1, "lib", 3) == 0
4257 && IS_DIR_SEPARATOR (temp
[4])
4258 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
4259 len
-= sizeof ("/lib/gcc/") - 1;
4262 set_std_prefix (gcc_exec_prefix
, len
);
4263 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
4264 PREFIX_PRIORITY_LAST
, 0, 0);
4265 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
4266 PREFIX_PRIORITY_LAST
, 0, 0);
4269 /* COMPILER_PATH and LIBRARY_PATH have values
4270 that are lists of directory names with colons. */
4272 temp
= env
.get ("COMPILER_PATH");
4275 const char *startp
, *endp
;
4276 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4278 startp
= endp
= temp
;
4281 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4283 strncpy (nstore
, startp
, endp
- startp
);
4285 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4286 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4288 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4289 nstore
[endp
- startp
+ 1] = 0;
4292 nstore
[endp
- startp
] = 0;
4293 add_prefix (&exec_prefixes
, nstore
, 0,
4294 PREFIX_PRIORITY_LAST
, 0, 0);
4295 add_prefix (&include_prefixes
, nstore
, 0,
4296 PREFIX_PRIORITY_LAST
, 0, 0);
4299 endp
= startp
= endp
+ 1;
4306 temp
= env
.get (LIBRARY_PATH_ENV
);
4307 if (temp
&& *cross_compile
== '0')
4309 const char *startp
, *endp
;
4310 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4312 startp
= endp
= temp
;
4315 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4317 strncpy (nstore
, startp
, endp
- startp
);
4319 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4320 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4322 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4323 nstore
[endp
- startp
+ 1] = 0;
4326 nstore
[endp
- startp
] = 0;
4327 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4328 PREFIX_PRIORITY_LAST
, 0, 1);
4331 endp
= startp
= endp
+ 1;
4338 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4339 temp
= env
.get ("LPATH");
4340 if (temp
&& *cross_compile
== '0')
4342 const char *startp
, *endp
;
4343 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4345 startp
= endp
= temp
;
4348 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4350 strncpy (nstore
, startp
, endp
- startp
);
4352 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4353 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4355 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4356 nstore
[endp
- startp
+ 1] = 0;
4359 nstore
[endp
- startp
] = 0;
4360 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4361 PREFIX_PRIORITY_LAST
, 0, 1);
4364 endp
= startp
= endp
+ 1;
4371 /* Process the options and store input files and switches in their
4374 last_language_n_infiles
= -1;
4376 set_option_handlers (&handlers
);
4378 for (j
= 1; j
< decoded_options_count
; j
++)
4380 switch (decoded_options
[j
].opt_index
)
4392 for (j
= 1; j
< decoded_options_count
; j
++)
4394 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4396 const char *arg
= decoded_options
[j
].arg
;
4397 const char *p
= strrchr (arg
, '@');
4401 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4402 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4404 /* For LTO static archive support we handle input file
4405 specifications that are composed of a filename and
4406 an offset like FNAME@OFFSET. */
4409 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4410 && strlen (p
) == (unsigned int)consumed
)
4412 fname
= (char *)xmalloc (p
- arg
+ 1);
4413 memcpy (fname
, arg
, p
- arg
);
4414 fname
[p
- arg
] = '\0';
4415 /* Only accept non-stdin and existing FNAME parts, otherwise
4416 try with the full name. */
4417 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4420 fname
= xstrdup (arg
);
4424 fname
= xstrdup (arg
);
4426 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4428 if (fname
[0] == '@' && access (fname
+ 1, F_OK
) < 0)
4429 perror_with_name (fname
+ 1);
4431 perror_with_name (fname
);
4434 add_infile (arg
, spec_lang
);
4440 read_cmdline_option (&global_options
, &global_options_set
,
4441 decoded_options
+ j
, UNKNOWN_LOCATION
,
4442 CL_DRIVER
, &handlers
, global_dc
);
4445 /* If the user didn't specify any, default to all configured offload
4447 if (ENABLE_OFFLOADING
&& offload_targets
== NULL
)
4448 handle_foffload_option (OFFLOAD_TARGETS
);
4451 && strcmp (output_file
, "-") != 0
4452 && strcmp (output_file
, HOST_BIT_BUCKET
) != 0)
4455 for (i
= 0; i
< n_infiles
; i
++)
4456 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
4457 && canonical_filename_eq (infiles
[i
].name
, output_file
))
4458 fatal_error (input_location
,
4459 "input file %qs is the same as output file",
4463 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4464 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4465 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4467 save_temps_length
= strlen (save_temps_prefix
);
4468 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4471 save_temps_length
-= strlen (temp
);
4472 save_temps_prefix
[save_temps_length
] = '\0';
4476 else if (save_temps_prefix
!= NULL
)
4478 free (save_temps_prefix
);
4479 save_temps_prefix
= NULL
;
4482 if (save_temps_flag
&& use_pipes
)
4484 /* -save-temps overrides -pipe, so that temp files are produced */
4485 if (save_temps_flag
)
4486 warning (0, "-pipe ignored because -save-temps specified");
4492 const char *gcd
= env
.get ("GCC_COMPARE_DEBUG");
4494 if (gcd
&& gcd
[0] == '-')
4497 compare_debug_opt
= gcd
;
4499 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4502 compare_debug_opt
= "-gtoggle";
4505 else if (compare_debug
< 0)
4508 gcc_assert (!compare_debug_opt
);
4511 /* Set up the search paths. We add directories that we expect to
4512 contain GNU Toolchain components before directories specified by
4513 the machine description so that we will find GNU components (like
4514 the GNU assembler) before those of the host system. */
4516 /* If we don't know where the toolchain has been installed, use the
4517 configured-in locations. */
4518 if (!gcc_exec_prefix
)
4521 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4522 PREFIX_PRIORITY_LAST
, 1, 0);
4523 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4524 PREFIX_PRIORITY_LAST
, 2, 0);
4525 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4526 PREFIX_PRIORITY_LAST
, 2, 0);
4528 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4529 PREFIX_PRIORITY_LAST
, 1, 0);
4532 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4533 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
4534 dir_separator_str
, NULL
);
4536 /* Look for tools relative to the location from which the driver is
4537 running, or, if that is not available, the configured prefix. */
4539 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4540 spec_host_machine
, dir_separator_str
, spec_version
,
4541 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
4542 free (tooldir_prefix2
);
4544 add_prefix (&exec_prefixes
,
4545 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4546 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4547 add_prefix (&startfile_prefixes
,
4548 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4549 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4550 free (tooldir_prefix
);
4552 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4553 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4554 then consider it to relocate with the rest of the GCC installation
4555 if GCC_EXEC_PREFIX is set.
4556 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4557 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4559 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4560 standard_bindir_prefix
,
4561 target_system_root
);
4562 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4564 target_system_root
= tmp_prefix
;
4565 target_system_root_changed
= 1;
4570 /* More prefixes are enabled in main, after we read the specs file
4571 and determine whether this is cross-compilation or not. */
4573 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4574 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4576 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4577 environment variable. */
4578 if (compare_debug
== 2 || compare_debug
== 3)
4580 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4581 save_switch (opt
, 0, NULL
, false, true);
4585 /* Ensure we only invoke each subprocess once. */
4586 if (print_subprocess_help
|| print_help_list
|| print_version
)
4590 /* Create a dummy input file, so that we can pass
4591 the help option on to the various sub-processes. */
4592 add_infile ("help-dummy", "c");
4595 /* Decide if undefined variable references are allowed in specs. */
4597 /* --version and --help alone or together are safe. Note that -v would
4598 make them unsafe, as they'd then be run for subprocesses as well, the
4599 location of which might depend on variables possibly coming from
4602 Count the number of options we have for which undefined variables
4603 are harmless for sure, and check that nothing else is set. */
4605 unsigned n_varsafe_options
= 0;
4608 n_varsafe_options
++;
4610 if (print_help_list
)
4611 n_varsafe_options
++;
4613 spec_undefvar_allowed
= (n_varsafe_options
== decoded_options_count
- 1);
4616 switches
[n_switches
].part1
= 0;
4618 infiles
[n_infiles
].name
= 0;
4621 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4622 and place that in the environment. */
4625 set_collect_gcc_options (void)
4630 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4632 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4633 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4636 for (i
= 0; (int) i
< n_switches
; i
++)
4638 const char *const *args
;
4641 obstack_grow (&collect_obstack
, " ", 1);
4645 /* Ignore elided switches. */
4646 if ((switches
[i
].live_cond
4647 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4651 obstack_grow (&collect_obstack
, "'-", 2);
4652 q
= switches
[i
].part1
;
4653 while ((p
= strchr (q
, '\'')))
4655 obstack_grow (&collect_obstack
, q
, p
- q
);
4656 obstack_grow (&collect_obstack
, "'\\''", 4);
4659 obstack_grow (&collect_obstack
, q
, strlen (q
));
4660 obstack_grow (&collect_obstack
, "'", 1);
4662 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4664 obstack_grow (&collect_obstack
, " '", 2);
4666 while ((p
= strchr (q
, '\'')))
4668 obstack_grow (&collect_obstack
, q
, p
- q
);
4669 obstack_grow (&collect_obstack
, "'\\''", 4);
4672 obstack_grow (&collect_obstack
, q
, strlen (q
));
4673 obstack_grow (&collect_obstack
, "'", 1);
4676 obstack_grow (&collect_obstack
, "\0", 1);
4677 xputenv (XOBFINISH (&collect_obstack
, char *));
4680 /* Process a spec string, accumulating and running commands. */
4682 /* These variables describe the input file name.
4683 input_file_number is the index on outfiles of this file,
4684 so that the output file name can be stored for later use by %o.
4685 input_basename is the start of the part of the input file
4686 sans all directory names, and basename_length is the number
4687 of characters starting there excluding the suffix .c or whatever. */
4689 static const char *gcc_input_filename
;
4690 static int input_file_number
;
4691 size_t input_filename_length
;
4692 static int basename_length
;
4693 static int suffixed_basename_length
;
4694 static const char *input_basename
;
4695 static const char *input_suffix
;
4696 #ifndef HOST_LACKS_INODE_NUMBERS
4697 static struct stat input_stat
;
4699 static int input_stat_set
;
4701 /* The compiler used to process the current input file. */
4702 static struct compiler
*input_file_compiler
;
4704 /* These are variables used within do_spec and do_spec_1. */
4706 /* Nonzero if an arg has been started and not yet terminated
4707 (with space, tab or newline). */
4708 static int arg_going
;
4710 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4711 is a temporary file name. */
4712 static int delete_this_arg
;
4714 /* Nonzero means %w has been seen; the next arg to be terminated
4715 is the output file name of this compilation. */
4716 static int this_is_output_file
;
4718 /* Nonzero means %s has been seen; the next arg to be terminated
4719 is the name of a library file and we should try the standard
4720 search dirs for it. */
4721 static int this_is_library_file
;
4723 /* Nonzero means %T has been seen; the next arg to be terminated
4724 is the name of a linker script and we should try all of the
4725 standard search dirs for it. If it is found insert a --script
4726 command line switch and then substitute the full path in place,
4727 otherwise generate an error message. */
4728 static int this_is_linker_script
;
4730 /* Nonzero means that the input of this command is coming from a pipe. */
4731 static int input_from_pipe
;
4733 /* Nonnull means substitute this for any suffix when outputting a switches
4735 static const char *suffix_subst
;
4737 /* If there is an argument being accumulated, terminate it and store it. */
4740 end_going_arg (void)
4746 obstack_1grow (&obstack
, 0);
4747 string
= XOBFINISH (&obstack
, const char *);
4748 if (this_is_library_file
)
4749 string
= find_file (string
);
4750 if (this_is_linker_script
)
4752 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4754 if (full_script_path
== NULL
)
4756 error ("unable to locate default linker script %qs in the library search paths", string
);
4757 /* Script was not found on search path. */
4760 store_arg ("--script", false, false);
4761 string
= full_script_path
;
4763 store_arg (string
, delete_this_arg
, this_is_output_file
);
4764 if (this_is_output_file
)
4765 outfiles
[input_file_number
] = string
;
4771 /* Parse the WRAPPER string which is a comma separated list of the command line
4772 and insert them into the beginning of argbuf. */
4775 insert_wrapper (const char *wrapper
)
4779 char *buf
= xstrdup (wrapper
);
4781 unsigned int old_length
= argbuf
.length ();
4789 while ((p
= strchr (p
, ',')) != NULL
);
4791 argbuf
.safe_grow (old_length
+ n
);
4792 memmove (argbuf
.address () + n
,
4794 old_length
* sizeof (const_char_p
));
4808 while ((p
= strchr (p
, ',')) != NULL
);
4809 gcc_assert (i
== n
);
4812 /* Process the spec SPEC and run the commands specified therein.
4813 Returns 0 if the spec is successfully processed; -1 if failed. */
4816 do_spec (const char *spec
)
4820 value
= do_spec_2 (spec
);
4822 /* Force out any unfinished command.
4823 If -pipe, this forces out the last command if it ended in `|'. */
4826 if (argbuf
.length () > 0
4827 && !strcmp (argbuf
.last (), "|"))
4830 set_collect_gcc_options ();
4832 if (argbuf
.length () > 0)
4840 do_spec_2 (const char *spec
)
4846 delete_this_arg
= 0;
4847 this_is_output_file
= 0;
4848 this_is_library_file
= 0;
4849 this_is_linker_script
= 0;
4850 input_from_pipe
= 0;
4851 suffix_subst
= NULL
;
4853 result
= do_spec_1 (spec
, 0, NULL
);
4861 /* Process the given spec string and add any new options to the end
4862 of the switches/n_switches array. */
4865 do_option_spec (const char *name
, const char *spec
)
4867 unsigned int i
, value_count
, value_len
;
4868 const char *p
, *q
, *value
;
4869 char *tmp_spec
, *tmp_spec_p
;
4871 if (configure_default_options
[0].name
== NULL
)
4874 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4875 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4877 if (i
== ARRAY_SIZE (configure_default_options
))
4880 value
= configure_default_options
[i
].value
;
4881 value_len
= strlen (value
);
4883 /* Compute the size of the final spec. */
4886 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4892 /* Replace each %(VALUE) by the specified value. */
4893 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4894 + value_count
* (value_len
- strlen ("%(VALUE)")));
4895 tmp_spec_p
= tmp_spec
;
4897 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4899 memcpy (tmp_spec_p
, q
, p
- q
);
4900 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4901 memcpy (tmp_spec_p
, value
, value_len
);
4902 tmp_spec_p
+= value_len
;
4903 q
= p
+ strlen ("%(VALUE)");
4905 strcpy (tmp_spec_p
, q
);
4907 do_self_spec (tmp_spec
);
4910 /* Process the given spec string and add any new options to the end
4911 of the switches/n_switches array. */
4914 do_self_spec (const char *spec
)
4919 do_spec_1 (" ", 0, NULL
);
4921 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4922 do_self_specs adds the replacements to switches array, so it shouldn't
4923 be processed afterwards. */
4924 for (i
= 0; i
< n_switches
; i
++)
4925 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4926 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4928 if (argbuf
.length () > 0)
4930 const char **argbuf_copy
;
4931 struct cl_decoded_option
*decoded_options
;
4932 struct cl_option_handlers handlers
;
4933 unsigned int decoded_options_count
;
4936 /* Create a copy of argbuf with a dummy argv[0] entry for
4937 decode_cmdline_options_to_array. */
4938 argbuf_copy
= XNEWVEC (const char *,
4939 argbuf
.length () + 1);
4940 argbuf_copy
[0] = "";
4941 memcpy (argbuf_copy
+ 1, argbuf
.address (),
4942 argbuf
.length () * sizeof (const char *));
4944 decode_cmdline_options_to_array (argbuf
.length () + 1,
4946 CL_DRIVER
, &decoded_options
,
4947 &decoded_options_count
);
4950 set_option_handlers (&handlers
);
4952 for (j
= 1; j
< decoded_options_count
; j
++)
4954 switch (decoded_options
[j
].opt_index
)
4956 case OPT_SPECIAL_input_file
:
4957 /* Specs should only generate options, not input
4959 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
4960 fatal_error (input_location
,
4961 "switch %qs does not start with %<-%>",
4962 decoded_options
[j
].arg
);
4964 fatal_error (input_location
,
4965 "spec-generated switch is just %<-%>");
4968 case OPT_fcompare_debug_second
:
4969 case OPT_fcompare_debug
:
4970 case OPT_fcompare_debug_
:
4972 /* Avoid duplicate processing of some options from
4973 compare-debug specs; just save them here. */
4974 save_switch (decoded_options
[j
].canonical_option
[0],
4975 (decoded_options
[j
].canonical_option_num_elements
4977 &decoded_options
[j
].canonical_option
[1], false, true);
4981 read_cmdline_option (&global_options
, &global_options_set
,
4982 decoded_options
+ j
, UNKNOWN_LOCATION
,
4983 CL_DRIVER
, &handlers
, global_dc
);
4988 free (decoded_options
);
4991 switches
[n_switches
].part1
= 0;
4995 /* Callback for processing %D and %I specs. */
4997 struct spec_path_info
{
5002 bool separate_options
;
5006 spec_path (char *path
, void *data
)
5008 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
5012 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
5015 if (info
->append_len
!= 0)
5017 len
= strlen (path
);
5018 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
5021 if (!is_directory (path
, true))
5024 do_spec_1 (info
->option
, 1, NULL
);
5025 if (info
->separate_options
)
5026 do_spec_1 (" ", 0, NULL
);
5028 if (info
->append_len
== 0)
5030 len
= strlen (path
);
5031 save
= path
[len
- 1];
5032 if (IS_DIR_SEPARATOR (path
[len
- 1]))
5033 path
[len
- 1] = '\0';
5036 do_spec_1 (path
, 1, NULL
);
5037 do_spec_1 (" ", 0, NULL
);
5039 /* Must not damage the original path. */
5040 if (info
->append_len
== 0)
5041 path
[len
- 1] = save
;
5046 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
5050 create_at_file (char **argv
)
5052 char *temp_file
= make_temp_file ("");
5053 char *at_argument
= concat ("@", temp_file
, NULL
);
5054 FILE *f
= fopen (temp_file
, "w");
5058 fatal_error (input_location
, "could not open temporary response file %s",
5061 status
= writeargv (argv
, f
);
5064 fatal_error (input_location
,
5065 "could not write to temporary response file %s",
5068 status
= fclose (f
);
5071 fatal_error (input_location
, "could not close temporary response file %s",
5074 store_arg (at_argument
, 0, 0);
5076 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5079 /* True if we should compile INFILE. */
5082 compile_input_file_p (struct infile
*infile
)
5084 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5085 if (infile
->incompiler
== input_file_compiler
)
5090 /* Process each member of VEC as a spec. */
5093 do_specs_vec (vec
<char_p
> vec
)
5098 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
5100 do_spec_1 (opt
, 1, NULL
);
5101 /* Make each accumulated option a separate argument. */
5102 do_spec_1 (" ", 0, NULL
);
5106 /* Process the sub-spec SPEC as a portion of a larger spec.
5107 This is like processing a whole spec except that we do
5108 not initialize at the beginning and we do not supply a
5109 newline by default at the end.
5110 INSWITCH nonzero means don't process %-sequences in SPEC;
5111 in this case, % is treated as an ordinary character.
5112 This is used while substituting switches.
5113 INSWITCH nonzero also causes SPC not to terminate an argument.
5115 Value is zero unless a line was finished
5116 and the command on that line reported an error. */
5119 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5121 const char *p
= spec
;
5126 /* If it's an empty string argument to a switch, keep it as is. */
5127 if (inswitch
&& !*p
)
5131 /* If substituting a switch, treat all chars like letters.
5132 Otherwise, NL, SPC, TAB and % are special. */
5133 switch (inswitch
? 'a' : c
)
5138 if (argbuf
.length () > 0
5139 && !strcmp (argbuf
.last (), "|"))
5141 /* A `|' before the newline means use a pipe here,
5142 but only if -pipe was specified.
5143 Otherwise, execute now and don't pass the `|' as an arg. */
5146 input_from_pipe
= 1;
5153 set_collect_gcc_options ();
5155 if (argbuf
.length () > 0)
5161 /* Reinitialize for a new command, and for a new argument. */
5164 delete_this_arg
= 0;
5165 this_is_output_file
= 0;
5166 this_is_library_file
= 0;
5167 this_is_linker_script
= 0;
5168 input_from_pipe
= 0;
5175 obstack_1grow (&obstack
, c
);
5183 /* Reinitialize for a new argument. */
5184 delete_this_arg
= 0;
5185 this_is_output_file
= 0;
5186 this_is_library_file
= 0;
5187 this_is_linker_script
= 0;
5194 fatal_error (input_location
, "spec %qs invalid", spec
);
5197 if (save_temps_length
)
5198 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5200 obstack_grow (&obstack
, input_basename
, basename_length
);
5201 if (compare_debug
< 0)
5202 obstack_grow (&obstack
, ".gk", 3);
5207 if (save_temps_length
)
5208 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5210 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
5211 if (compare_debug
< 0)
5212 obstack_grow (&obstack
, ".gk", 3);
5217 delete_this_arg
= 2;
5220 /* Dump out the directories specified with LIBRARY_PATH,
5221 followed by the absolute directories
5222 that we search for startfiles. */
5225 struct spec_path_info info
;
5228 info
.append_len
= 0;
5229 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5230 /* Used on systems which record the specified -L dirs
5231 and use them to search for dynamic linking.
5232 Relative directories always come from -B,
5233 and it is better not to use them for searching
5234 at run time. In particular, stage1 loses. */
5235 info
.omit_relative
= true;
5237 info
.omit_relative
= false;
5239 info
.separate_options
= false;
5241 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5246 /* %efoo means report an error with `foo' as error message
5247 and don't execute any more commands for this file. */
5251 while (*p
!= 0 && *p
!= '\n')
5253 buf
= (char *) alloca (p
- q
+ 1);
5254 strncpy (buf
, q
, p
- q
);
5256 error ("%s", _(buf
));
5261 /* %nfoo means report a notice with `foo' on stderr. */
5265 while (*p
!= 0 && *p
!= '\n')
5267 buf
= (char *) alloca (p
- q
+ 1);
5268 strncpy (buf
, q
, p
- q
);
5270 inform (0, "%s", _(buf
));
5280 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5281 defined, and it is not a directory, and it is
5282 writable, use it. Otherwise, treat this like any
5283 other temporary file. */
5285 if ((!save_temps_flag
)
5286 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5287 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5289 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5290 strlen (HOST_BIT_BUCKET
));
5291 delete_this_arg
= 0;
5296 goto create_temp_file
;
5300 obstack_1grow (&obstack
, '-');
5301 delete_this_arg
= 0;
5304 /* consume suffix */
5305 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5307 if (p
[0] == '%' && p
[1] == 'O')
5312 goto create_temp_file
;
5316 /* consume suffix */
5317 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5319 if (p
[0] == '%' && p
[1] == 'O')
5324 goto create_temp_file
;
5330 struct temp_name
*t
;
5332 const char *suffix
= p
;
5333 char *saved_suffix
= NULL
;
5335 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5337 suffix_length
= p
- suffix
;
5338 if (p
[0] == '%' && p
[1] == 'O')
5341 /* We don't support extra suffix characters after %O. */
5342 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5343 fatal_error (input_location
,
5344 "spec %qs has invalid %<%%0%c%>", spec
, *p
);
5345 if (suffix_length
== 0)
5346 suffix
= TARGET_OBJECT_SUFFIX
;
5350 = XNEWVEC (char, suffix_length
5351 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
5352 strncpy (saved_suffix
, suffix
, suffix_length
);
5353 strcpy (saved_suffix
+ suffix_length
,
5354 TARGET_OBJECT_SUFFIX
);
5356 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5359 if (compare_debug
< 0)
5361 suffix
= concat (".gk", suffix
, NULL
);
5365 /* If -save-temps=obj and -o were specified, use that for the
5367 if (save_temps_length
)
5370 temp_filename_length
5371 = save_temps_length
+ suffix_length
+ 1;
5372 tmp
= (char *) alloca (temp_filename_length
);
5373 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5374 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5375 tmp
[save_temps_length
+ suffix_length
] = '\0';
5376 temp_filename
= save_string (tmp
, save_temps_length
5378 obstack_grow (&obstack
, temp_filename
,
5379 temp_filename_length
);
5381 delete_this_arg
= 0;
5385 /* If the gcc_input_filename has the same suffix specified
5386 for the %g, %u, or %U, and -save-temps is specified,
5387 we could end up using that file as an intermediate
5388 thus clobbering the user's source file (.e.g.,
5389 gcc -save-temps foo.s would clobber foo.s with the
5390 output of cpp0). So check for this condition and
5391 generate a temp file as the intermediate. */
5393 if (save_temps_flag
)
5396 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5397 tmp
= (char *) alloca (temp_filename_length
);
5398 memcpy (tmp
, input_basename
, basename_length
);
5399 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5400 tmp
[basename_length
+ suffix_length
] = '\0';
5401 temp_filename
= tmp
;
5403 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
5405 #ifndef HOST_LACKS_INODE_NUMBERS
5406 struct stat st_temp
;
5408 /* Note, set_input() resets input_stat_set to 0. */
5409 if (input_stat_set
== 0)
5411 input_stat_set
= stat (gcc_input_filename
,
5413 if (input_stat_set
>= 0)
5417 /* If we have the stat for the gcc_input_filename
5418 and we can do the stat for the temp_filename
5419 then the they could still refer to the same
5420 file if st_dev/st_ino's are the same. */
5421 if (input_stat_set
!= 1
5422 || stat (temp_filename
, &st_temp
) < 0
5423 || input_stat
.st_dev
!= st_temp
.st_dev
5424 || input_stat
.st_ino
!= st_temp
.st_ino
)
5426 /* Just compare canonical pathnames. */
5427 char* input_realname
= lrealpath (gcc_input_filename
);
5428 char* temp_realname
= lrealpath (temp_filename
);
5429 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
5430 free (input_realname
);
5431 free (temp_realname
);
5436 = save_string (temp_filename
,
5437 temp_filename_length
- 1);
5438 obstack_grow (&obstack
, temp_filename
,
5439 temp_filename_length
);
5441 delete_this_arg
= 0;
5447 /* See if we already have an association of %g/%u/%U and
5449 for (t
= temp_names
; t
; t
= t
->next
)
5450 if (t
->length
== suffix_length
5451 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5452 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5455 /* Make a new association if needed. %u and %j
5457 if (t
== 0 || c
== 'u' || c
== 'j')
5461 t
= XNEW (struct temp_name
);
5462 t
->next
= temp_names
;
5465 t
->length
= suffix_length
;
5468 t
->suffix
= saved_suffix
;
5469 saved_suffix
= NULL
;
5472 t
->suffix
= save_string (suffix
, suffix_length
);
5473 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5474 temp_filename
= make_temp_file (t
->suffix
);
5475 temp_filename_length
= strlen (temp_filename
);
5476 t
->filename
= temp_filename
;
5477 t
->filename_length
= temp_filename_length
;
5480 free (saved_suffix
);
5482 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5483 delete_this_arg
= 1;
5491 if (at_file_supplied
)
5493 /* We are going to expand `%i' to `@FILE', where FILE
5494 is a newly-created temporary filename. The filenames
5495 that would usually be expanded in place of %o will be
5496 written to the temporary file. */
5501 for (i
= 0; i
< n_infiles
; i
++)
5502 if (compile_input_file_p (&infiles
[i
]))
5505 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5507 /* Copy the strings over. */
5508 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5509 if (compile_input_file_p (&infiles
[i
]))
5511 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5512 infiles
[i
].compiled
= true;
5517 create_at_file (argv
);
5520 for (i
= 0; (int) i
< n_infiles
; i
++)
5521 if (compile_input_file_p (&infiles
[i
]))
5523 store_arg (infiles
[i
].name
, 0, 0);
5524 infiles
[i
].compiled
= true;
5529 obstack_grow (&obstack
, gcc_input_filename
,
5530 input_filename_length
);
5537 struct spec_path_info info
;
5541 do_spec_1 ("-imultilib", 1, NULL
);
5542 /* Make this a separate argument. */
5543 do_spec_1 (" ", 0, NULL
);
5544 do_spec_1 (multilib_dir
, 1, NULL
);
5545 do_spec_1 (" ", 0, NULL
);
5550 do_spec_1 ("-imultiarch", 1, NULL
);
5551 /* Make this a separate argument. */
5552 do_spec_1 (" ", 0, NULL
);
5553 do_spec_1 (multiarch_dir
, 1, NULL
);
5554 do_spec_1 (" ", 0, NULL
);
5557 if (gcc_exec_prefix
)
5559 do_spec_1 ("-iprefix", 1, NULL
);
5560 /* Make this a separate argument. */
5561 do_spec_1 (" ", 0, NULL
);
5562 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5563 do_spec_1 (" ", 0, NULL
);
5566 if (target_system_root_changed
||
5567 (target_system_root
&& target_sysroot_hdrs_suffix
))
5569 do_spec_1 ("-isysroot", 1, NULL
);
5570 /* Make this a separate argument. */
5571 do_spec_1 (" ", 0, NULL
);
5572 do_spec_1 (target_system_root
, 1, NULL
);
5573 if (target_sysroot_hdrs_suffix
)
5574 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5575 do_spec_1 (" ", 0, NULL
);
5578 info
.option
= "-isystem";
5579 info
.append
= "include";
5580 info
.append_len
= strlen (info
.append
);
5581 info
.omit_relative
= false;
5582 info
.separate_options
= true;
5584 for_each_path (&include_prefixes
, false, info
.append_len
,
5587 info
.append
= "include-fixed";
5588 if (*sysroot_hdrs_suffix_spec
)
5589 info
.append
= concat (info
.append
, dir_separator_str
,
5590 multilib_dir
, NULL
);
5591 info
.append_len
= strlen (info
.append
);
5592 for_each_path (&include_prefixes
, false, info
.append_len
,
5599 int max
= n_infiles
;
5600 max
+= lang_specific_extra_outfiles
;
5602 if (HAVE_GNU_LD
&& at_file_supplied
)
5604 /* We are going to expand `%o' to `@FILE', where FILE
5605 is a newly-created temporary filename. The filenames
5606 that would usually be expanded in place of %o will be
5607 written to the temporary file. */
5612 /* Convert OUTFILES into a form suitable for writeargv. */
5614 /* Determine how many are non-NULL. */
5615 for (n_files
= 0, i
= 0; i
< max
; i
++)
5616 n_files
+= outfiles
[i
] != NULL
;
5618 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5620 /* Copy the strings over. */
5621 for (i
= 0, j
= 0; i
< max
; i
++)
5624 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5629 create_at_file (argv
);
5632 for (i
= 0; i
< max
; i
++)
5634 store_arg (outfiles
[i
], 0, 0);
5639 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5644 this_is_library_file
= 1;
5648 this_is_linker_script
= 1;
5652 outfiles
[input_file_number
] = NULL
;
5656 this_is_output_file
= 1;
5661 unsigned int cur_index
= argbuf
.length ();
5662 /* Handle the {...} following the %W. */
5664 fatal_error (input_location
,
5665 "spec %qs has invalid %<%%W%c%>", spec
, *p
);
5666 p
= handle_braces (p
+ 1);
5670 /* If any args were output, mark the last one for deletion
5672 if (argbuf
.length () != cur_index
)
5673 record_temp_file (argbuf
.last (), 0, 1);
5677 /* %x{OPTION} records OPTION for %X to output. */
5685 /* Skip past the option value and make a copy. */
5687 fatal_error (input_location
,
5688 "spec %qs has invalid %<%%x%c%>", spec
, *p
);
5691 string
= save_string (p1
+ 1, p
- p1
- 2);
5693 /* See if we already recorded this option. */
5694 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5695 if (! strcmp (string
, opt
))
5701 /* This option is new; add it. */
5702 add_linker_option (string
, strlen (string
));
5707 /* Dump out the options accumulated previously using %x. */
5709 do_specs_vec (linker_options
);
5712 /* Dump out the options accumulated previously using -Wa,. */
5714 do_specs_vec (assembler_options
);
5717 /* Dump out the options accumulated previously using -Wp,. */
5719 do_specs_vec (preprocessor_options
);
5722 /* Here are digits and numbers that just process
5723 a certain constant string as a spec. */
5726 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5732 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5738 value
= do_spec_1 (asm_spec
, 0, NULL
);
5744 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5751 const char *const spec
5752 = (input_file_compiler
->cpp_spec
5753 ? input_file_compiler
->cpp_spec
5755 value
= do_spec_1 (spec
, 0, NULL
);
5762 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5768 value
= do_spec_1 (link_spec
, 0, NULL
);
5774 value
= do_spec_1 (lib_spec
, 0, NULL
);
5780 if (multilib_os_dir
== NULL
)
5781 obstack_1grow (&obstack
, '.');
5783 obstack_grow (&obstack
, multilib_os_dir
,
5784 strlen (multilib_os_dir
));
5788 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5794 /* We assume there is a directory
5795 separator at the end of this string. */
5796 if (target_system_root
)
5798 obstack_grow (&obstack
, target_system_root
,
5799 strlen (target_system_root
));
5800 if (target_sysroot_suffix
)
5801 obstack_grow (&obstack
, target_sysroot_suffix
,
5802 strlen (target_sysroot_suffix
));
5807 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5812 /* Here we define characters other than letters and digits. */
5815 p
= handle_braces (p
);
5821 p
= handle_spec_function (p
, NULL
);
5827 obstack_1grow (&obstack
, '%');
5834 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5836 suffix_subst
= save_string (p
- 1, len
+ 1);
5841 /* Henceforth ignore the option(s) matching the pattern
5847 int have_wildcard
= 0;
5852 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5854 switch_option
= SWITCH_IGNORE
;
5856 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5859 if (p
[len
-1] == '*')
5862 for (i
= 0; i
< n_switches
; i
++)
5863 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5864 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5866 switches
[i
].live_cond
|= switch_option
;
5867 /* User switch be validated from validate_all_switches.
5868 when the definition is seen from the spec file.
5869 If not defined anywhere, will be rejected. */
5870 if (switches
[i
].known
)
5871 switches
[i
].validated
= true;
5879 if (soft_matched_part
)
5881 if (soft_matched_part
[0])
5882 do_spec_1 (soft_matched_part
, 1, NULL
);
5883 /* Only insert a space after the substitution if it is at the
5884 end of the current sequence. So if:
5886 "%{foo=*:bar%*}%{foo=*:one%*two}"
5888 matches -foo=hello then it will produce:
5890 barhello onehellotwo
5892 if (*p
== 0 || *p
== '}')
5893 do_spec_1 (" ", 0, NULL
);
5896 /* Catch the case where a spec string contains something like
5897 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5898 hand side of the :. */
5899 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5902 /* Process a string found as the value of a spec given by name.
5903 This feature allows individual machine descriptions
5904 to add and use their own specs. */
5907 const char *name
= p
;
5908 struct spec_list
*sl
;
5911 /* The string after the S/P is the name of a spec that is to be
5913 while (*p
&& *p
!= ')')
5916 /* See if it's in the list. */
5917 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5918 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5920 name
= *(sl
->ptr_spec
);
5922 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
5930 value
= do_spec_1 (name
, 0, NULL
);
5935 /* Discard the closing paren. */
5942 error ("spec failure: unrecognized spec option %qc", c
);
5948 /* Backslash: treat next character as ordinary. */
5953 /* Ordinary character: put it into the current argument. */
5954 obstack_1grow (&obstack
, c
);
5958 /* End of string. If we are processing a spec function, we need to
5959 end any pending argument. */
5960 if (processing_spec_function
)
5966 /* Look up a spec function. */
5968 static const struct spec_function
*
5969 lookup_spec_function (const char *name
)
5971 const struct spec_function
*sf
;
5973 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5974 if (strcmp (sf
->name
, name
) == 0)
5980 /* Evaluate a spec function. */
5983 eval_spec_function (const char *func
, const char *args
)
5985 const struct spec_function
*sf
;
5986 const char *funcval
;
5988 /* Saved spec processing context. */
5989 vec
<const_char_p
> save_argbuf
;
5992 int save_delete_this_arg
;
5993 int save_this_is_output_file
;
5994 int save_this_is_library_file
;
5995 int save_input_from_pipe
;
5996 int save_this_is_linker_script
;
5997 const char *save_suffix_subst
;
5999 int save_growing_size
;
6000 void *save_growing_value
= NULL
;
6002 sf
= lookup_spec_function (func
);
6004 fatal_error (input_location
, "unknown spec function %qs", func
);
6006 /* Push the spec processing context. */
6007 save_argbuf
= argbuf
;
6009 save_arg_going
= arg_going
;
6010 save_delete_this_arg
= delete_this_arg
;
6011 save_this_is_output_file
= this_is_output_file
;
6012 save_this_is_library_file
= this_is_library_file
;
6013 save_this_is_linker_script
= this_is_linker_script
;
6014 save_input_from_pipe
= input_from_pipe
;
6015 save_suffix_subst
= suffix_subst
;
6017 /* If we have some object growing now, finalize it so the args and function
6018 eval proceed from a cleared context. This is needed to prevent the first
6019 constructed arg from mistakenly including the growing value. We'll push
6020 this value back on the obstack once the function evaluation is done, to
6021 restore a consistent processing context for our caller. This is fine as
6022 the address of growing objects isn't guaranteed to remain stable until
6023 they are finalized, and we expect this situation to be rare enough for
6024 the extra copy not to be an issue. */
6025 save_growing_size
= obstack_object_size (&obstack
);
6026 if (save_growing_size
> 0)
6027 save_growing_value
= obstack_finish (&obstack
);
6029 /* Create a new spec processing context, and build the function
6033 if (do_spec_2 (args
) < 0)
6034 fatal_error (input_location
, "error in args to spec function %qs", func
);
6036 /* argbuf_index is an index for the next argument to be inserted, and
6037 so contains the count of the args already inserted. */
6039 funcval
= (*sf
->func
) (argbuf
.length (),
6042 /* Pop the spec processing context. */
6044 argbuf
= save_argbuf
;
6046 arg_going
= save_arg_going
;
6047 delete_this_arg
= save_delete_this_arg
;
6048 this_is_output_file
= save_this_is_output_file
;
6049 this_is_library_file
= save_this_is_library_file
;
6050 this_is_linker_script
= save_this_is_linker_script
;
6051 input_from_pipe
= save_input_from_pipe
;
6052 suffix_subst
= save_suffix_subst
;
6054 if (save_growing_size
> 0)
6055 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
6060 /* Handle a spec function call of the form:
6064 ARGS is processed as a spec in a separate context and split into an
6065 argument vector in the normal fashion. The function returns a string
6066 containing a spec which we then process in the caller's context, or
6067 NULL if no processing is required.
6069 If RETVAL_NONNULL is not NULL, then store a bool whether function
6070 returned non-NULL. */
6073 handle_spec_function (const char *p
, bool *retval_nonnull
)
6076 const char *endp
, *funcval
;
6079 processing_spec_function
++;
6081 /* Get the function name. */
6082 for (endp
= p
; *endp
!= '\0'; endp
++)
6084 if (*endp
== '(') /* ) */
6086 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6087 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6088 fatal_error (input_location
, "malformed spec function name");
6090 if (*endp
!= '(') /* ) */
6091 fatal_error (input_location
, "no arguments for spec function");
6092 func
= save_string (p
, endp
- p
);
6095 /* Get the arguments. */
6096 for (count
= 0; *endp
!= '\0'; endp
++)
6105 else if (*endp
== '(') /* ) */
6110 fatal_error (input_location
, "malformed spec function arguments");
6111 args
= save_string (p
, endp
- p
);
6114 /* p now points to just past the end of the spec function expression. */
6116 funcval
= eval_spec_function (func
, args
);
6117 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6120 *retval_nonnull
= funcval
!= NULL
;
6125 processing_spec_function
--;
6130 /* Inline subroutine of handle_braces. Returns true if the current
6131 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6133 input_suffix_matches (const char *atom
, const char *end_atom
)
6135 return (input_suffix
6136 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6137 && input_suffix
[end_atom
- atom
] == '\0');
6140 /* Subroutine of handle_braces. Returns true if the current
6141 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6143 input_spec_matches (const char *atom
, const char *end_atom
)
6145 return (input_file_compiler
6146 && input_file_compiler
->suffix
6147 && input_file_compiler
->suffix
[0] != '\0'
6148 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6150 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6153 /* Subroutine of handle_braces. Returns true if a switch
6154 matching the atom bracketed by ATOM and END_ATOM appeared on the
6157 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6160 int len
= end_atom
- atom
;
6161 int plen
= starred
? len
: -1;
6163 for (i
= 0; i
< n_switches
; i
++)
6164 if (!strncmp (switches
[i
].part1
, atom
, len
)
6165 && (starred
|| switches
[i
].part1
[len
] == '\0')
6166 && check_live_switch (i
, plen
))
6169 /* Check if a switch with separated form matching the atom.
6170 We check -D and -U switches. */
6171 else if (switches
[i
].args
!= 0)
6173 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
6174 && *switches
[i
].part1
== atom
[0])
6176 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
6177 && (starred
|| (switches
[i
].part1
[1] == '\0'
6178 && switches
[i
].args
[0][len
- 1] == '\0'))
6179 && check_live_switch (i
, (starred
? 1 : -1)))
6187 /* Inline subroutine of handle_braces. Mark all of the switches which
6188 match ATOM (extends to END_ATOM; STARRED indicates whether there
6189 was a star after the atom) for later processing. */
6191 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6194 int len
= end_atom
- atom
;
6195 int plen
= starred
? len
: -1;
6197 for (i
= 0; i
< n_switches
; i
++)
6198 if (!strncmp (switches
[i
].part1
, atom
, len
)
6199 && (starred
|| switches
[i
].part1
[len
] == '\0')
6200 && check_live_switch (i
, plen
))
6201 switches
[i
].ordering
= 1;
6204 /* Inline subroutine of handle_braces. Process all the currently
6205 marked switches through give_switch, and clear the marks. */
6207 process_marked_switches (void)
6211 for (i
= 0; i
< n_switches
; i
++)
6212 if (switches
[i
].ordering
== 1)
6214 switches
[i
].ordering
= 0;
6219 /* Handle a %{ ... } construct. P points just inside the leading {.
6220 Returns a pointer one past the end of the brace block, or 0
6221 if we call do_spec_1 and that returns -1. */
6224 handle_braces (const char *p
)
6226 const char *atom
, *end_atom
;
6227 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6228 const char *orig
= p
;
6236 bool a_must_be_last
= false;
6237 bool ordered_set
= false;
6238 bool disjunct_set
= false;
6239 bool disj_matched
= false;
6240 bool disj_starred
= true;
6241 bool n_way_choice
= false;
6242 bool n_way_matched
= false;
6244 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6251 /* Scan one "atom" (S in the description above of %{}, possibly
6252 with '!', '.', '@', ',', or '*' modifiers). */
6254 a_is_suffix
= false;
6255 a_is_starred
= false;
6256 a_is_negated
= false;
6257 a_is_spectype
= false;
6261 p
++, a_is_negated
= true;
6264 if (*p
== '%' && p
[1] == ':')
6268 p
= handle_spec_function (p
+ 2, &a_matched
);
6273 p
++, a_is_suffix
= true;
6275 p
++, a_is_spectype
= true;
6278 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6279 || *p
== ',' || *p
== '.' || *p
== '@')
6284 p
++, a_is_starred
= 1;
6291 /* Substitute the switch(es) indicated by the current atom. */
6293 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6294 || a_is_spectype
|| atom
== end_atom
)
6297 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6300 process_marked_switches ();
6304 /* Substitute some text if the current atom appears as a switch
6306 disjunct_set
= true;
6310 if (atom
&& atom
== end_atom
)
6312 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6313 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6317 /* An empty term may appear as the last choice of an
6318 N-way choice set; it means "otherwise". */
6319 a_must_be_last
= true;
6320 disj_matched
= !n_way_matched
;
6321 disj_starred
= false;
6325 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6329 disj_starred
= false;
6331 /* Don't bother testing this atom if we already have a
6333 if (!disj_matched
&& !n_way_matched
)
6336 /* a_matched is already set by handle_spec_function. */;
6337 else if (a_is_suffix
)
6338 a_matched
= input_suffix_matches (atom
, end_atom
);
6339 else if (a_is_spectype
)
6340 a_matched
= input_spec_matches (atom
, end_atom
);
6342 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6344 if (a_matched
!= a_is_negated
)
6346 disj_matched
= true;
6348 d_end_atom
= end_atom
;
6355 /* Found the body, that is, the text to substitute if the
6356 current disjunction matches. */
6357 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6358 disj_matched
&& !n_way_matched
);
6362 /* If we have an N-way choice, reset state for the next
6366 n_way_choice
= true;
6367 n_way_matched
|= disj_matched
;
6368 disj_matched
= false;
6369 disj_starred
= true;
6370 d_atom
= d_end_atom
= NULL
;
6379 while (*p
++ != '}');
6384 fatal_error (input_location
, "braced spec %qs is invalid at %qc", orig
, *p
);
6389 /* Subroutine of handle_braces. Scan and process a brace substitution body
6390 (X in the description of %{} syntax). P points one past the colon;
6391 ATOM and END_ATOM bracket the first atom which was found to be true
6392 (present) in the current disjunction; STARRED indicates whether all
6393 the atoms in the current disjunction were starred (for syntax validation);
6394 MATCHED indicates whether the disjunction matched or not, and therefore
6395 whether or not the body is to be processed through do_spec_1 or just
6396 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6400 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6401 int starred
, int matched
)
6403 const char *body
, *end_body
;
6404 unsigned int nesting_level
;
6405 bool have_subst
= false;
6407 /* Locate the closing } or ;, honoring nested braces.
6408 Trim trailing whitespace. */
6417 if (!--nesting_level
)
6420 else if (*p
== ';' && nesting_level
== 1)
6422 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6424 else if (*p
== '\0')
6430 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6433 if (have_subst
&& !starred
)
6438 /* Copy the substitution body to permanent storage and execute it.
6439 If have_subst is false, this is a simple matter of running the
6440 body through do_spec_1... */
6441 char *string
= save_string (body
, end_body
- body
);
6444 if (do_spec_1 (string
, 0, NULL
) < 0)
6452 /* ... but if have_subst is true, we have to process the
6453 body once for each matching switch, with %* set to the
6454 variant part of the switch. */
6455 unsigned int hard_match_len
= end_atom
- atom
;
6458 for (i
= 0; i
< n_switches
; i
++)
6459 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6460 && check_live_switch (i
, hard_match_len
))
6462 if (do_spec_1 (string
, 0,
6463 &switches
[i
].part1
[hard_match_len
]) < 0)
6468 /* Pass any arguments this switch has. */
6470 suffix_subst
= NULL
;
6479 fatal_error (input_location
, "braced spec body %qs is invalid", body
);
6482 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6483 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6484 spec, or -1 if either exact match or %* is used.
6486 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
6487 whose value does not begin with "no-" is obsoleted by the same value
6488 with the "no-", similarly for a switch with the "no-" prefix. */
6491 check_live_switch (int switchnum
, int prefix_length
)
6493 const char *name
= switches
[switchnum
].part1
;
6496 /* If we already processed this switch and determined if it was
6497 live or not, return our past determination. */
6498 if (switches
[switchnum
].live_cond
!= 0)
6499 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6500 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6501 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6504 /* In the common case of {<at-most-one-letter>*}, a negating
6505 switch would always match, so ignore that case. We will just
6506 send the conflicting switches to the compiler phase. */
6507 if (prefix_length
>= 0 && prefix_length
<= 1)
6510 /* Now search for duplicate in a manner that depends on the name. */
6514 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6515 if (switches
[i
].part1
[0] == 'O')
6517 switches
[switchnum
].validated
= true;
6518 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6523 case 'W': case 'f': case 'm': case 'g':
6524 if (! strncmp (name
+ 1, "no-", 3))
6526 /* We have Xno-YYY, search for XYYY. */
6527 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6528 if (switches
[i
].part1
[0] == name
[0]
6529 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6531 /* --specs are validated with the validate_switches mechanism. */
6532 if (switches
[switchnum
].known
)
6533 switches
[switchnum
].validated
= true;
6534 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6540 /* We have XYYY, search for Xno-YYY. */
6541 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6542 if (switches
[i
].part1
[0] == name
[0]
6543 && switches
[i
].part1
[1] == 'n'
6544 && switches
[i
].part1
[2] == 'o'
6545 && switches
[i
].part1
[3] == '-'
6546 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6548 /* --specs are validated with the validate_switches mechanism. */
6549 if (switches
[switchnum
].known
)
6550 switches
[switchnum
].validated
= true;
6551 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6558 /* Otherwise the switch is live. */
6559 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6563 /* Pass a switch to the current accumulating command
6564 in the same form that we received it.
6565 SWITCHNUM identifies the switch; it is an index into
6566 the vector of switches gcc received, which is `switches'.
6567 This cannot fail since it never finishes a command line.
6569 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6572 give_switch (int switchnum
, int omit_first_word
)
6574 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6577 if (!omit_first_word
)
6579 do_spec_1 ("-", 0, NULL
);
6580 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6583 if (switches
[switchnum
].args
!= 0)
6586 for (p
= switches
[switchnum
].args
; *p
; p
++)
6588 const char *arg
= *p
;
6590 do_spec_1 (" ", 0, NULL
);
6593 unsigned length
= strlen (arg
);
6596 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6597 if (arg
[length
] == '.')
6599 (CONST_CAST (char *, arg
))[length
] = 0;
6603 do_spec_1 (arg
, 1, NULL
);
6605 (CONST_CAST (char *, arg
))[length
] = '.';
6606 do_spec_1 (suffix_subst
, 1, NULL
);
6609 do_spec_1 (arg
, 1, NULL
);
6613 do_spec_1 (" ", 0, NULL
);
6614 switches
[switchnum
].validated
= true;
6617 /* Print GCC configuration (e.g. version, thread model, target,
6618 configuration_arguments) to a given FILE. */
6621 print_configuration (FILE *file
)
6626 fnotice (file
, "Target: %s\n", spec_machine
);
6627 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
6629 #ifdef THREAD_MODEL_SPEC
6630 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6631 but there's no point in doing all this processing just to get
6632 thread_model back. */
6633 obstack_init (&obstack
);
6634 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6635 obstack_1grow (&obstack
, '\0');
6636 thrmod
= XOBFINISH (&obstack
, const char *);
6638 thrmod
= thread_model
;
6641 fnotice (file
, "Thread model: %s\n", thrmod
);
6643 /* compiler_version is truncated at the first space when initialized
6644 from version string, so truncate version_string at the first space
6645 before comparing. */
6646 for (n
= 0; version_string
[n
]; n
++)
6647 if (version_string
[n
] == ' ')
6650 if (! strncmp (version_string
, compiler_version
, n
)
6651 && compiler_version
[n
] == 0)
6652 fnotice (file
, "gcc version %s %s\n", version_string
,
6655 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n",
6656 version_string
, pkgversion_string
, compiler_version
);
6660 #define RETRY_ICE_ATTEMPTS 3
6662 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
6665 files_equal_p (char *file1
, char *file2
)
6667 struct stat st1
, st2
;
6670 const int bufsize
= 8192;
6671 char *buf
= XNEWVEC (char, bufsize
);
6673 fd1
= open (file1
, O_RDONLY
);
6674 fd2
= open (file2
, O_RDONLY
);
6676 if (fd1
< 0 || fd2
< 0)
6679 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
6682 if (st1
.st_size
!= st2
.st_size
)
6685 for (n
= st1
.st_size
; n
; n
-= len
)
6688 if ((int) len
> bufsize
/ 2)
6691 if (read (fd1
, buf
, len
) != (int) len
6692 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
6697 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
6714 /* Check that compiler's output doesn't differ across runs.
6715 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
6716 stdout and stderr for each compiler run. Return true if all of
6717 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
6720 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
6723 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
6725 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
6726 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
6728 fnotice (stderr
, "The bug is not reproducible, so it is"
6729 " likely a hardware or OS problem.\n");
6733 return i
== RETRY_ICE_ATTEMPTS
- 2;
6736 enum attempt_status
{
6737 ATTEMPT_STATUS_FAIL_TO_RUN
,
6738 ATTEMPT_STATUS_SUCCESS
,
6743 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
6744 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
6745 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
6746 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
6747 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
6748 ATTEMPT_STATUS_SUCCESS otherwise. */
6750 static enum attempt_status
6751 run_attempt (const char **new_argv
, const char *out_temp
,
6752 const char *err_temp
, int emit_system_info
, int append
)
6755 if (emit_system_info
)
6757 FILE *file_out
= fopen (err_temp
, "a");
6758 print_configuration (file_out
);
6759 fputs ("\n", file_out
);
6765 struct pex_obj
*pex
;
6767 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
6768 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
6771 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
6773 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
6775 fatal_error (input_location
, "pex_init failed: %m");
6777 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
6778 CONST_CAST2 (char *const *, const char **, &new_argv
[1]), out_temp
,
6783 fatal_error (input_location
, errmsg
);
6787 pfatal_with_name (errmsg
);
6791 if (!pex_get_status (pex
, 1, &exit_status
))
6794 switch (WEXITSTATUS (exit_status
))
6797 status
= ATTEMPT_STATUS_ICE
;
6800 case SUCCESS_EXIT_CODE
:
6801 status
= ATTEMPT_STATUS_SUCCESS
;
6813 /* This routine reads lines from IN file, adds C++ style comments
6814 at the begining of each line and writes result into OUT. */
6817 insert_comments (const char *file_in
, const char *file_out
)
6819 FILE *in
= fopen (file_in
, "rb");
6820 FILE *out
= fopen (file_out
, "wb");
6823 bool add_comment
= true;
6824 while (fgets (line
, sizeof (line
), in
))
6829 add_comment
= strchr (line
, '\n') != NULL
;
6836 /* This routine adds preprocessed source code into the given ERR_FILE.
6837 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
6838 add information in report file. RUN_ATTEMPT should return
6839 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
6842 do_report_bug (const char **new_argv
, const int nargs
,
6843 char **out_file
, char **err_file
)
6846 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
6849 write (fd
, "\n//", 3);
6850 for (i
= 0; i
< nargs
; i
++)
6853 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
6855 write (fd
, "\n\n", 2);
6857 new_argv
[nargs
] = "-E";
6858 new_argv
[nargs
+ 1] = NULL
;
6860 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
6862 if (status
== ATTEMPT_STATUS_SUCCESS
)
6864 fnotice (stderr
, "Preprocessed source stored into %s file,"
6865 " please attach this to your bugreport.\n", *out_file
);
6866 /* Make sure it is not deleted. */
6872 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
6873 containing GCC configuration, backtrace, compiler's command line options
6874 and preprocessed source code. */
6877 try_generate_repro (const char **argv
)
6879 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
6880 const char **new_argv
;
6881 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
6882 char **temp_stdout_files
= &temp_files
[0];
6883 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
6885 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
6888 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
6889 /* Only retry compiler ICEs, not preprocessor ones. */
6890 if (! strcmp (argv
[nargs
], "-E"))
6892 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
6899 /* If the compiler is going to output any time information,
6900 it might varry between invocations. */
6901 else if (! strcmp (argv
[nargs
], "-quiet"))
6903 else if (! strcmp (argv
[nargs
], "-ftime-report"))
6906 if (out_arg
== -1 || !quiet
)
6909 memset (temp_files
, '\0', sizeof (temp_files
));
6910 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
6911 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
6912 new_argv
[nargs
++] = "-frandom-seed=0";
6913 new_argv
[nargs
++] = "-fdump-noaddr";
6914 new_argv
[nargs
] = NULL
;
6915 if (new_argv
[out_arg
][2] == '\0')
6916 new_argv
[out_arg
+ 1] = "-";
6918 new_argv
[out_arg
] = "-o-";
6921 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
6923 int emit_system_info
= 0;
6925 temp_stdout_files
[attempt
] = make_temp_file (".out");
6926 temp_stderr_files
[attempt
] = make_temp_file (".err");
6928 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
6931 emit_system_info
= 1;
6934 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
6935 temp_stderr_files
[attempt
], emit_system_info
,
6938 if (status
!= ATTEMPT_STATUS_ICE
)
6940 fnotice (stderr
, "The bug is not reproducible, so it is"
6941 " likely a hardware or OS problem.\n");
6946 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
6950 /* Insert commented out backtrace into report file. */
6951 char **stderr_commented
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
6952 insert_comments (temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
6955 /* In final attempt we append compiler options and preprocesssed code to last
6956 generated .out file with configuration and backtrace. */
6957 char **output
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
6958 do_report_bug (new_argv
, nargs
, stderr_commented
, output
);
6962 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
6965 unlink (temp_stdout_files
[i
]);
6966 free (temp_stdout_files
[i
]);
6970 /* Search for a file named NAME trying various prefixes including the
6971 user's -B prefix and some standard ones.
6972 Return the absolute file name found. If nothing is found, return NAME. */
6975 find_file (const char *name
)
6977 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6978 return newname
? newname
: name
;
6981 /* Determine whether a directory exists. If LINKER, return 0 for
6982 certain fixed names not needed by the linker. */
6985 is_directory (const char *path1
, bool linker
)
6992 /* Ensure the string ends with "/.". The resulting path will be a
6993 directory even if the given path is a symbolic link. */
6994 len1
= strlen (path1
);
6995 path
= (char *) alloca (3 + len1
);
6996 memcpy (path
, path1
, len1
);
6998 if (!IS_DIR_SEPARATOR (cp
[-1]))
6999 *cp
++ = DIR_SEPARATOR
;
7003 /* Exclude directories that the linker is known to search. */
7005 && IS_DIR_SEPARATOR (path
[0])
7007 && filename_ncmp (path
+ 1, "lib", 3) == 0)
7009 && filename_ncmp (path
+ 1, "usr", 3) == 0
7010 && IS_DIR_SEPARATOR (path
[4])
7011 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
7014 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
7017 /* Set up the various global variables to indicate that we're processing
7018 the input file named FILENAME. */
7021 set_input (const char *filename
)
7025 gcc_input_filename
= filename
;
7026 input_filename_length
= strlen (gcc_input_filename
);
7027 input_basename
= lbasename (gcc_input_filename
);
7029 /* Find a suffix starting with the last period,
7030 and set basename_length to exclude that suffix. */
7031 basename_length
= strlen (input_basename
);
7032 suffixed_basename_length
= basename_length
;
7033 p
= input_basename
+ basename_length
;
7034 while (p
!= input_basename
&& *p
!= '.')
7036 if (*p
== '.' && p
!= input_basename
)
7038 basename_length
= p
- input_basename
;
7039 input_suffix
= p
+ 1;
7044 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
7045 we will need to do a stat on the gcc_input_filename. The
7046 INPUT_STAT_SET signals that the stat is needed. */
7050 /* On fatal signals, delete all the temporary files. */
7053 fatal_signal (int signum
)
7055 signal (signum
, SIG_DFL
);
7056 delete_failure_queue ();
7057 delete_temp_files ();
7058 /* Get the same signal again, this time not handled,
7059 so its normal effect occurs. */
7060 kill (getpid (), signum
);
7063 /* Compare the contents of the two files named CMPFILE[0] and
7064 CMPFILE[1]. Return zero if they're identical, nonzero
7068 compare_files (char *cmpfile
[])
7071 FILE *temp
[2] = { NULL
, NULL
};
7077 void *map
[2] = { NULL
, NULL
};
7079 for (i
= 0; i
< 2; i
++)
7083 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
7085 error ("%s: could not determine length of compare-debug file %s",
7086 gcc_input_filename
, cmpfile
[i
]);
7091 length
[i
] = st
.st_size
;
7094 if (!ret
&& length
[0] != length
[1])
7096 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
7101 for (i
= 0; i
< 2; i
++)
7103 int fd
= open (cmpfile
[i
], O_RDONLY
);
7106 error ("%s: could not open compare-debug file %s",
7107 gcc_input_filename
, cmpfile
[i
]);
7112 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
7115 if (map
[i
] == (void *) MAP_FAILED
)
7124 if (memcmp (map
[0], map
[1], length
[0]) != 0)
7126 error ("%s: -fcompare-debug failure", gcc_input_filename
);
7131 for (i
= 0; i
< 2; i
++)
7133 munmap ((caddr_t
) map
[i
], length
[i
]);
7142 for (i
= 0; i
< 2; i
++)
7144 temp
[i
] = fopen (cmpfile
[i
], "r");
7147 error ("%s: could not open compare-debug file %s",
7148 gcc_input_filename
, cmpfile
[i
]);
7154 if (!ret
&& temp
[0] && temp
[1])
7158 c0
= fgetc (temp
[0]);
7159 c1
= fgetc (temp
[1]);
7163 error ("%s: -fcompare-debug failure",
7164 gcc_input_filename
);
7173 for (i
= 1; i
>= 0; i
--)
7182 driver::driver (bool can_finalize
, bool debug
) :
7183 explicit_link_files (NULL
),
7184 decoded_options (NULL
),
7185 m_option_suggestions (NULL
)
7187 env
.init (can_finalize
, debug
);
7192 XDELETEVEC (explicit_link_files
);
7193 XDELETEVEC (decoded_options
);
7194 if (m_option_suggestions
)
7198 FOR_EACH_VEC_ELT (*m_option_suggestions
, i
, str
)
7200 delete m_option_suggestions
;
7204 /* driver::main is implemented as a series of driver:: method calls. */
7207 driver::main (int argc
, char **argv
)
7211 set_progname (argv
[0]);
7212 expand_at_files (&argc
, &argv
);
7213 decode_argv (argc
, const_cast <const char **> (argv
));
7214 global_initializations ();
7215 build_multilib_strings ();
7217 putenv_COLLECT_GCC (argv
[0]);
7218 maybe_putenv_COLLECT_LTO_WRAPPER ();
7219 maybe_putenv_OFFLOAD_TARGETS ();
7220 handle_unrecognized_options ();
7222 if (!maybe_print_and_exit ())
7225 early_exit
= prepare_infiles ();
7227 return get_exit_code ();
7229 do_spec_on_infiles ();
7230 maybe_run_linker (argv
[0]);
7232 return get_exit_code ();
7235 /* Locate the final component of argv[0] after any leading path, and set
7236 the program name accordingly. */
7239 driver::set_progname (const char *argv0
) const
7241 const char *p
= argv0
+ strlen (argv0
);
7242 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
7246 xmalloc_set_program_name (progname
);
7249 /* Expand any @ files within the command-line args,
7250 setting at_file_supplied if any were expanded. */
7253 driver::expand_at_files (int *argc
, char ***argv
) const
7255 char **old_argv
= *argv
;
7257 expandargv (argc
, argv
);
7259 /* Determine if any expansions were made. */
7260 if (*argv
!= old_argv
)
7261 at_file_supplied
= true;
7264 /* Decode the command-line arguments from argc/argv into the
7265 decoded_options array. */
7268 driver::decode_argv (int argc
, const char **argv
)
7270 /* Register the language-independent parameters. */
7271 global_init_params ();
7274 init_opts_obstack ();
7275 init_options_struct (&global_options
, &global_options_set
);
7277 decode_cmdline_options_to_array (argc
, argv
,
7279 &decoded_options
, &decoded_options_count
);
7282 /* Perform various initializations and setup. */
7285 driver::global_initializations ()
7287 /* Unlock the stdio streams. */
7288 unlock_std_streams ();
7290 gcc_init_libintl ();
7292 diagnostic_initialize (global_dc
, 0);
7293 diagnostic_color_init (global_dc
);
7295 #ifdef GCC_DRIVER_HOST_INITIALIZATION
7296 /* Perform host dependent initialization when needed. */
7297 GCC_DRIVER_HOST_INITIALIZATION
;
7300 if (atexit (delete_temp_files
) != 0)
7301 fatal_error (input_location
, "atexit failed");
7303 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
7304 signal (SIGINT
, fatal_signal
);
7306 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
7307 signal (SIGHUP
, fatal_signal
);
7309 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
7310 signal (SIGTERM
, fatal_signal
);
7312 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
7313 signal (SIGPIPE
, fatal_signal
);
7316 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
7317 receive the signal. A different setting is inheritable */
7318 signal (SIGCHLD
, SIG_DFL
);
7321 /* Parsing and gimplification sometimes need quite large stack.
7322 Increase stack size limits if possible. */
7323 stack_limit_increase (64 * 1024 * 1024);
7325 /* Allocate the argument vector. */
7328 obstack_init (&obstack
);
7331 /* Build multilib_select, et. al from the separate lines that make up each
7332 multilib selection. */
7335 driver::build_multilib_strings () const
7339 const char *const *q
= multilib_raw
;
7342 obstack_init (&multilib_obstack
);
7343 while ((p
= *q
++) != (char *) 0)
7344 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7346 obstack_1grow (&multilib_obstack
, 0);
7347 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
7349 q
= multilib_matches_raw
;
7350 while ((p
= *q
++) != (char *) 0)
7351 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7353 obstack_1grow (&multilib_obstack
, 0);
7354 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
7356 q
= multilib_exclusions_raw
;
7357 while ((p
= *q
++) != (char *) 0)
7358 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7360 obstack_1grow (&multilib_obstack
, 0);
7361 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
7363 q
= multilib_reuse_raw
;
7364 while ((p
= *q
++) != (char *) 0)
7365 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7367 obstack_1grow (&multilib_obstack
, 0);
7368 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
7371 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
7374 obstack_1grow (&multilib_obstack
, ' ');
7375 obstack_grow (&multilib_obstack
,
7376 multilib_defaults_raw
[i
],
7377 strlen (multilib_defaults_raw
[i
]));
7381 obstack_1grow (&multilib_obstack
, 0);
7382 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
7386 /* Set up the spec-handling machinery. */
7389 driver::set_up_specs () const
7391 const char *spec_machine_suffix
;
7395 #ifdef INIT_ENVIRONMENT
7396 /* Set up any other necessary machine specific environment variables. */
7397 xputenv (INIT_ENVIRONMENT
);
7400 /* Make a table of what switches there are (switches, n_switches).
7401 Make a table of specified input files (infiles, n_infiles).
7402 Decode switches that are handled locally. */
7404 process_command (decoded_options_count
, decoded_options
);
7406 /* Initialize the vector of specs to just the default.
7407 This means one element containing 0s, as a terminator. */
7409 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
7410 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
7411 n_compilers
= n_default_compilers
;
7413 /* Read specs from a file if there is one. */
7415 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
7416 accel_dir_suffix
, dir_separator_str
, NULL
);
7417 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
7419 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
7420 /* Read the specs file unless it is a default one. */
7421 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
7422 read_specs (specs_file
, true, false);
7426 #ifdef ACCEL_COMPILER
7427 spec_machine_suffix
= machine_suffix
;
7429 spec_machine_suffix
= just_machine_suffix
;
7432 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
7433 for any override of as, ld and libraries. */
7434 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
7435 + strlen (spec_machine_suffix
) + sizeof ("specs"));
7436 strcpy (specs_file
, standard_exec_prefix
);
7437 strcat (specs_file
, spec_machine_suffix
);
7438 strcat (specs_file
, "specs");
7439 if (access (specs_file
, R_OK
) == 0)
7440 read_specs (specs_file
, true, false);
7442 /* Process any configure-time defaults specified for the command line
7443 options, via OPTION_DEFAULT_SPECS. */
7444 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
7445 do_option_spec (option_default_specs
[i
].name
,
7446 option_default_specs
[i
].spec
);
7448 /* Process DRIVER_SELF_SPECS, adding any new options to the end
7449 of the command line. */
7451 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
7452 do_self_spec (driver_self_specs
[i
]);
7454 /* If not cross-compiling, look for executables in the standard
7456 if (*cross_compile
== '0')
7458 if (*md_exec_prefix
)
7460 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
7461 PREFIX_PRIORITY_LAST
, 0, 0);
7465 /* Process sysroot_suffix_spec. */
7466 if (*sysroot_suffix_spec
!= 0
7467 && !no_sysroot_suffix
7468 && do_spec_2 (sysroot_suffix_spec
) == 0)
7470 if (argbuf
.length () > 1)
7471 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
7472 else if (argbuf
.length () == 1)
7473 target_sysroot_suffix
= xstrdup (argbuf
.last ());
7476 #ifdef HAVE_LD_SYSROOT
7477 /* Pass the --sysroot option to the linker, if it supports that. If
7478 there is a sysroot_suffix_spec, it has already been processed by
7479 this point, so target_system_root really is the system root we
7481 if (target_system_root
)
7483 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7484 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
7485 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
7489 /* Process sysroot_hdrs_suffix_spec. */
7490 if (*sysroot_hdrs_suffix_spec
!= 0
7491 && !no_sysroot_suffix
7492 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
7494 if (argbuf
.length () > 1)
7495 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7496 else if (argbuf
.length () == 1)
7497 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
7500 /* Look for startfiles in the standard places. */
7501 if (*startfile_prefix_spec
!= 0
7502 && do_spec_2 (startfile_prefix_spec
) == 0
7503 && do_spec_1 (" ", 0, NULL
) == 0)
7507 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
7508 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
7509 PREFIX_PRIORITY_LAST
, 0, 1);
7511 /* We should eventually get rid of all these and stick to
7512 startfile_prefix_spec exclusively. */
7513 else if (*cross_compile
== '0' || target_system_root
)
7515 if (*md_startfile_prefix
)
7516 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7517 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7519 if (*md_startfile_prefix_1
)
7520 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7521 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7523 /* If standard_startfile_prefix is relative, base it on
7524 standard_exec_prefix. This lets us move the installed tree
7525 as a unit. If GCC_EXEC_PREFIX is defined, base
7526 standard_startfile_prefix on that as well.
7528 If the prefix is relative, only search it for native compilers;
7529 otherwise we will search a directory containing host libraries. */
7530 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7531 add_sysrooted_prefix (&startfile_prefixes
,
7532 standard_startfile_prefix
, "BINUTILS",
7533 PREFIX_PRIORITY_LAST
, 0, 1);
7534 else if (*cross_compile
== '0')
7536 add_prefix (&startfile_prefixes
,
7537 concat (gcc_exec_prefix
7538 ? gcc_exec_prefix
: standard_exec_prefix
,
7540 standard_startfile_prefix
, NULL
),
7541 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7544 /* Sysrooted prefixes are relocated because target_system_root is
7545 also relocated by gcc_exec_prefix. */
7546 if (*standard_startfile_prefix_1
)
7547 add_sysrooted_prefix (&startfile_prefixes
,
7548 standard_startfile_prefix_1
, "BINUTILS",
7549 PREFIX_PRIORITY_LAST
, 0, 1);
7550 if (*standard_startfile_prefix_2
)
7551 add_sysrooted_prefix (&startfile_prefixes
,
7552 standard_startfile_prefix_2
, "BINUTILS",
7553 PREFIX_PRIORITY_LAST
, 0, 1);
7556 /* Process any user specified specs in the order given on the command
7558 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7560 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7562 read_specs (filename
? filename
: uptr
->filename
, false, true);
7565 /* Process any user self specs. */
7567 struct spec_list
*sl
;
7568 for (sl
= specs
; sl
; sl
= sl
->next
)
7569 if (sl
->name_len
== sizeof "self_spec" - 1
7570 && !strcmp (sl
->name
, "self_spec"))
7571 do_self_spec (*sl
->ptr_spec
);
7576 enum save_temps save
;
7578 if (!compare_debug_second
)
7580 n_switches_debug_check
[1] = n_switches
;
7581 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7582 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
7585 do_self_spec ("%:compare-debug-self-opt()");
7586 n_switches_debug_check
[0] = n_switches
;
7587 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
7588 switches_debug_check
[0] = switches
;
7590 n_switches
= n_switches_debug_check
[1];
7591 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7592 switches
= switches_debug_check
[1];
7595 /* Avoid crash when computing %j in this early. */
7596 save
= save_temps_flag
;
7597 save_temps_flag
= SAVE_TEMPS_NONE
;
7599 compare_debug
= -compare_debug
;
7600 do_self_spec ("%:compare-debug-self-opt()");
7602 save_temps_flag
= save
;
7604 if (!compare_debug_second
)
7606 n_switches_debug_check
[1] = n_switches
;
7607 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7608 switches_debug_check
[1] = switches
;
7609 compare_debug
= -compare_debug
;
7610 n_switches
= n_switches_debug_check
[0];
7611 n_switches_alloc
= n_switches_debug_check
[0];
7612 switches
= switches_debug_check
[0];
7617 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7618 if (gcc_exec_prefix
)
7619 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
7620 dir_separator_str
, spec_version
,
7621 accel_dir_suffix
, dir_separator_str
, NULL
);
7623 /* Now we have the specs.
7624 Set the `valid' bits for switches that match anything in any spec. */
7626 validate_all_switches ();
7628 /* Now that we have the switches and the specs, set
7629 the subdirectory based on the options. */
7630 set_multilib_dir ();
7633 /* Set up to remember the pathname of gcc and any options
7634 needed for collect. We use argv[0] instead of progname because
7635 we need the complete pathname. */
7638 driver::putenv_COLLECT_GCC (const char *argv0
) const
7640 obstack_init (&collect_obstack
);
7641 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7642 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
7643 xputenv (XOBFINISH (&collect_obstack
, char *));
7646 /* Set up to remember the pathname of the lto wrapper. */
7649 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
7651 char *lto_wrapper_file
;
7654 lto_wrapper_file
= NULL
;
7656 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
7658 if (lto_wrapper_file
)
7660 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
7661 lto_wrapper_spec
= lto_wrapper_file
;
7662 obstack_init (&collect_obstack
);
7663 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7664 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7665 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7666 strlen (lto_wrapper_spec
) + 1);
7667 xputenv (XOBFINISH (&collect_obstack
, char *));
7672 /* Set up to remember the names of offload targets. */
7675 driver::maybe_putenv_OFFLOAD_TARGETS () const
7677 if (offload_targets
&& offload_targets
[0] != '\0')
7679 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
7680 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
7681 obstack_grow (&collect_obstack
, offload_targets
,
7682 strlen (offload_targets
) + 1);
7683 xputenv (XOBFINISH (&collect_obstack
, char *));
7686 free (offload_targets
);
7687 offload_targets
= NULL
;
7690 /* Helper function for driver::suggest_option. Populate
7691 m_option_suggestions with candidate strings for misspelled options.
7692 The strings will be freed by the driver's dtor. */
7695 driver::build_option_suggestions (void)
7697 gcc_assert (m_option_suggestions
== NULL
);
7698 m_option_suggestions
= new auto_vec
<char *> ();
7700 /* We build a vec of m_option_suggestions, using add_misspelling_candidates
7701 to add copies of strings, without a leading dash. */
7703 for (unsigned int i
= 0; i
< cl_options_count
; i
++)
7705 const struct cl_option
*option
= &cl_options
[i
];
7706 const char *opt_text
= option
->opt_text
;
7710 if (option
->var_type
== CLVC_ENUM
)
7712 const struct cl_enum
*e
= &cl_enums
[option
->var_enum
];
7713 for (unsigned j
= 0; e
->values
[j
].arg
!= NULL
; j
++)
7715 char *with_arg
= concat (opt_text
, e
->values
[j
].arg
, NULL
);
7716 add_misspelling_candidates (m_option_suggestions
, option
,
7722 add_misspelling_candidates (m_option_suggestions
, option
,
7726 case OPT_fsanitize_
:
7727 case OPT_fsanitize_recover_
:
7728 /* -fsanitize= and -fsanitize-recover= can take
7729 a comma-separated list of arguments. Given that combinations
7730 are supported, we can't add all potential candidates to the
7731 vec, but if we at least add them individually without commas,
7732 we should do a better job e.g. correcting
7735 "-fsanitize=address"
7736 rather than to "-Wframe-address" (PR driver/69265). */
7738 for (int j
= 0; sanitizer_opts
[j
].name
!= NULL
; ++j
)
7740 /* Get one arg at a time e.g. "-fsanitize=address". */
7741 char *with_arg
= concat (opt_text
,
7742 sanitizer_opts
[j
].name
,
7744 /* Add with_arg and all of its variant spellings e.g.
7745 "-fno-sanitize=address" to candidates (albeit without
7747 add_misspelling_candidates (m_option_suggestions
, option
,
7757 /* Helper function for driver::handle_unrecognized_options.
7759 Given an unrecognized option BAD_OPT (without the leading dash),
7760 locate the closest reasonable matching option (again, without the
7761 leading dash), or NULL.
7763 The returned string is owned by the driver instance. */
7766 driver::suggest_option (const char *bad_opt
)
7768 /* Lazily populate m_option_suggestions. */
7769 if (!m_option_suggestions
)
7770 build_option_suggestions ();
7771 gcc_assert (m_option_suggestions
);
7773 /* "m_option_suggestions" is now populated. Use it. */
7774 return find_closest_string
7776 (auto_vec
<const char *> *) m_option_suggestions
);
7779 /* Reject switches that no pass was interested in. */
7782 driver::handle_unrecognized_options ()
7784 for (size_t i
= 0; (int) i
< n_switches
; i
++)
7785 if (! switches
[i
].validated
)
7787 const char *hint
= suggest_option (switches
[i
].part1
);
7789 error ("unrecognized command line option %<-%s%>;"
7790 " did you mean %<-%s%>?",
7791 switches
[i
].part1
, hint
);
7793 error ("unrecognized command line option %<-%s%>",
7798 /* Handle the various -print-* options, returning 0 if the driver
7799 should exit, or nonzero if the driver should continue. */
7802 driver::maybe_print_and_exit () const
7804 if (print_search_dirs
)
7806 printf (_("install: %s%s\n"),
7807 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7808 gcc_exec_prefix
? "" : machine_suffix
);
7809 printf (_("programs: %s\n"),
7810 build_search_list (&exec_prefixes
, "", false, false));
7811 printf (_("libraries: %s\n"),
7812 build_search_list (&startfile_prefixes
, "", false, true));
7816 if (print_file_name
)
7818 printf ("%s\n", find_file (print_file_name
));
7822 if (print_prog_name
)
7824 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
7826 /* Append USE_LD to the default linker. */
7827 #ifdef DEFAULT_LINKER
7829 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
7830 int len
= (sizeof (DEFAULT_LINKER
)
7831 - sizeof (HOST_EXECUTABLE_SUFFIX
));
7835 char *default_linker
= xstrdup (DEFAULT_LINKER
);
7836 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
7837 HOST_EXECUTABLE_SUFFIX. */
7838 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
7840 default_linker
[len
] = '\0';
7841 ld
= concat (default_linker
, use_ld
,
7842 HOST_EXECUTABLE_SUFFIX
, NULL
);
7847 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
7848 if (access (ld
, X_OK
) == 0)
7850 printf ("%s\n", ld
);
7854 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
7856 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7857 printf ("%s\n", (newname
? newname
: print_prog_name
));
7861 if (print_multi_lib
)
7863 print_multilib_info ();
7867 if (print_multi_directory
)
7869 if (multilib_dir
== NULL
)
7872 printf ("%s\n", multilib_dir
);
7876 if (print_multiarch
)
7878 if (multiarch_dir
== NULL
)
7881 printf ("%s\n", multiarch_dir
);
7887 if (target_system_root
)
7889 if (target_sysroot_suffix
)
7890 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7892 printf ("%s\n", target_system_root
);
7897 if (print_multi_os_directory
)
7899 if (multilib_os_dir
== NULL
)
7902 printf ("%s\n", multilib_os_dir
);
7906 if (print_sysroot_headers_suffix
)
7908 if (*sysroot_hdrs_suffix_spec
)
7910 printf("%s\n", (target_sysroot_hdrs_suffix
7911 ? target_sysroot_hdrs_suffix
7916 /* The error status indicates that only one set of fixed
7917 headers should be built. */
7918 fatal_error (input_location
,
7919 "not configured with sysroot headers suffix");
7922 if (print_help_list
)
7928 printf (_("\nFor bug reporting instructions, please see:\n"));
7929 printf ("%s.\n", bug_report_url
);
7934 /* We do not exit here. Instead we have created a fake input file
7935 called 'help-dummy' which needs to be compiled, and we pass this
7936 on the various sub-processes, along with the --help switch.
7937 Ensure their output appears after ours. */
7938 fputc ('\n', stdout
);
7944 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
7946 printf ("Copyright %s 2016 Free Software Foundation, Inc.\n",
7948 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7949 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7954 /* We do not exit here. We use the same mechanism of --help to print
7955 the version of the sub-processes. */
7956 fputc ('\n', stdout
);
7962 print_configuration (stderr
);
7970 /* Figure out what to do with each input file.
7971 Return true if we need to exit early from "main", false otherwise. */
7974 driver::prepare_infiles ()
7977 int lang_n_infiles
= 0;
7979 if (n_infiles
== added_libraries
)
7980 fatal_error (input_location
, "no input files");
7983 /* Early exit needed from main. */
7986 /* Make a place to record the compiler output file names
7987 that correspond to the input files. */
7990 i
+= lang_specific_extra_outfiles
;
7991 outfiles
= XCNEWVEC (const char *, i
);
7993 /* Record which files were specified explicitly as link input. */
7995 explicit_link_files
= XCNEWVEC (char, n_infiles
);
7997 combine_inputs
= have_o
|| flag_wpa
;
7999 for (i
= 0; (int) i
< n_infiles
; i
++)
8001 const char *name
= infiles
[i
].name
;
8002 struct compiler
*compiler
= lookup_compiler (name
,
8004 infiles
[i
].language
);
8006 if (compiler
&& !(compiler
->combinable
))
8007 combine_inputs
= false;
8009 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
8010 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
8011 infiles
[i
].incompiler
= compiler
;
8015 input_file_compiler
= compiler
;
8016 infiles
[i
].incompiler
= compiler
;
8020 /* Since there is no compiler for this input file, assume it is a
8022 explicit_link_files
[i
] = 1;
8023 infiles
[i
].incompiler
= NULL
;
8025 infiles
[i
].compiled
= false;
8026 infiles
[i
].preprocessed
= false;
8029 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
8030 fatal_error (input_location
,
8031 "cannot specify -o with -c, -S or -E with multiple files");
8033 /* No early exit needed from main; we can continue. */
8037 /* Run the spec machinery on each input file. */
8040 driver::do_spec_on_infiles () const
8044 for (i
= 0; (int) i
< n_infiles
; i
++)
8046 int this_file_error
= 0;
8048 /* Tell do_spec what to substitute for %i. */
8050 input_file_number
= i
;
8051 set_input (infiles
[i
].name
);
8053 if (infiles
[i
].compiled
)
8056 /* Use the same thing in %o, unless cp->spec says otherwise. */
8058 outfiles
[i
] = gcc_input_filename
;
8060 /* Figure out which compiler from the file's suffix. */
8063 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
8064 infiles
[i
].language
);
8066 if (input_file_compiler
)
8068 /* Ok, we found an applicable compiler. Run its spec. */
8070 if (input_file_compiler
->spec
[0] == '#')
8072 error ("%s: %s compiler not installed on this system",
8073 gcc_input_filename
, &input_file_compiler
->spec
[1]);
8074 this_file_error
= 1;
8082 free (debug_check_temp_file
[0]);
8083 debug_check_temp_file
[0] = NULL
;
8085 free (debug_check_temp_file
[1]);
8086 debug_check_temp_file
[1] = NULL
;
8089 value
= do_spec (input_file_compiler
->spec
);
8090 infiles
[i
].compiled
= true;
8092 this_file_error
= 1;
8093 else if (compare_debug
&& debug_check_temp_file
[0])
8096 inform (0, "recompiling with -fcompare-debug");
8098 compare_debug
= -compare_debug
;
8099 n_switches
= n_switches_debug_check
[1];
8100 n_switches_alloc
= n_switches_alloc_debug_check
[1];
8101 switches
= switches_debug_check
[1];
8103 value
= do_spec (input_file_compiler
->spec
);
8105 compare_debug
= -compare_debug
;
8106 n_switches
= n_switches_debug_check
[0];
8107 n_switches_alloc
= n_switches_alloc_debug_check
[0];
8108 switches
= switches_debug_check
[0];
8112 error ("during -fcompare-debug recompilation");
8113 this_file_error
= 1;
8116 gcc_assert (debug_check_temp_file
[1]
8117 && filename_cmp (debug_check_temp_file
[0],
8118 debug_check_temp_file
[1]));
8121 inform (0, "comparing final insns dumps");
8123 if (compare_files (debug_check_temp_file
))
8124 this_file_error
= 1;
8129 free (debug_check_temp_file
[0]);
8130 debug_check_temp_file
[0] = NULL
;
8132 free (debug_check_temp_file
[1]);
8133 debug_check_temp_file
[1] = NULL
;
8138 /* If this file's name does not contain a recognized suffix,
8139 record it as explicit linker input. */
8142 explicit_link_files
[i
] = 1;
8144 /* Clear the delete-on-failure queue, deleting the files in it
8145 if this compilation failed. */
8147 if (this_file_error
)
8149 delete_failure_queue ();
8152 /* If this compilation succeeded, don't delete those files later. */
8153 clear_failure_queue ();
8156 /* Reset the input file name to the first compile/object file name, for use
8157 with %b in LINK_SPEC. We use the first input file that we can find
8158 a compiler to compile it instead of using infiles.language since for
8159 languages other than C we use aliases that we then lookup later. */
8164 for (i
= 0; i
< n_infiles
; i
++)
8165 if (infiles
[i
].incompiler
8166 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
8168 set_input (infiles
[i
].name
);
8175 /* Make sure INPUT_FILE_NUMBER points to first available open
8177 input_file_number
= n_infiles
;
8178 if (lang_specific_pre_link ())
8183 /* If we have to run the linker, do it now. */
8186 driver::maybe_run_linker (const char *argv0
) const
8189 int linker_was_run
= 0;
8190 int num_linker_inputs
;
8192 /* Determine if there are any linker input files. */
8193 num_linker_inputs
= 0;
8194 for (i
= 0; (int) i
< n_infiles
; i
++)
8195 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
8196 num_linker_inputs
++;
8198 /* Run ld to link all the compiler output files. */
8200 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
8202 int tmp
= execution_count
;
8206 #if HAVE_LTO_PLUGIN > 0
8207 #if HAVE_LTO_PLUGIN == 2
8208 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
8210 const char *fuse_linker_plugin
= "fuse-linker-plugin";
8214 /* We'll use ld if we can't find collect2. */
8215 if (! strcmp (linker_name_spec
, "collect2"))
8217 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
8219 linker_name_spec
= "ld";
8222 #if HAVE_LTO_PLUGIN > 0
8223 #if HAVE_LTO_PLUGIN == 2
8224 if (!switch_matches (fno_use_linker_plugin
,
8225 fno_use_linker_plugin
8226 + strlen (fno_use_linker_plugin
), 0))
8228 if (switch_matches (fuse_linker_plugin
,
8230 + strlen (fuse_linker_plugin
), 0))
8233 char *temp_spec
= find_a_file (&exec_prefixes
,
8234 LTOPLUGINSONAME
, R_OK
,
8237 fatal_error (input_location
,
8238 "-fuse-linker-plugin, but %s not found",
8240 linker_plugin_file_spec
= convert_white_space (temp_spec
);
8243 lto_gcc_spec
= argv0
;
8246 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
8248 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
8249 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
8251 if (print_subprocess_help
== 1)
8253 printf (_("\nLinker options\n==============\n\n"));
8254 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
8255 " to the linker.\n\n"));
8258 int value
= do_spec (link_command_spec
);
8261 linker_was_run
= (tmp
!= execution_count
);
8264 /* If options said don't run linker,
8265 complain about input files to be given to the linker. */
8267 if (! linker_was_run
&& !seen_error ())
8268 for (i
= 0; (int) i
< n_infiles
; i
++)
8269 if (explicit_link_files
[i
]
8270 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
8271 warning (0, "%s: linker input file unused because linking not done",
8275 /* The end of "main". */
8278 driver::final_actions () const
8280 /* Delete some or all of the temporary files we made. */
8283 delete_failure_queue ();
8284 delete_temp_files ();
8286 if (print_help_list
)
8288 printf (("\nFor bug reporting instructions, please see:\n"));
8289 printf ("%s\n", bug_report_url
);
8293 /* Determine what the exit code of the driver should be. */
8296 driver::get_exit_code () const
8298 return (signal_count
!= 0 ? 2
8299 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
8303 /* Find the proper compilation spec for the file name NAME,
8304 whose length is LENGTH. LANGUAGE is the specified language,
8305 or 0 if this file is to be passed to the linker. */
8307 static struct compiler
*
8308 lookup_compiler (const char *name
, size_t length
, const char *language
)
8310 struct compiler
*cp
;
8312 /* If this was specified by the user to be a linker input, indicate that. */
8313 if (language
!= 0 && language
[0] == '*')
8316 /* Otherwise, look for the language, if one is spec'd. */
8319 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8320 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
8323 error ("language %s not recognized", language
);
8327 /* Look for a suffix. */
8328 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8330 if (/* The suffix `-' matches only the file name `-'. */
8331 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8332 || (strlen (cp
->suffix
) < length
8333 /* See if the suffix matches the end of NAME. */
8334 && !strcmp (cp
->suffix
,
8335 name
+ length
- strlen (cp
->suffix
))
8340 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
8341 /* Look again, but case-insensitively this time. */
8343 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8345 if (/* The suffix `-' matches only the file name `-'. */
8346 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8347 || (strlen (cp
->suffix
) < length
8348 /* See if the suffix matches the end of NAME. */
8349 && ((!strcmp (cp
->suffix
,
8350 name
+ length
- strlen (cp
->suffix
))
8351 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
8352 && !strcasecmp (cp
->suffix
,
8353 name
+ length
- strlen (cp
->suffix
)))
8359 if (cp
>= compilers
)
8361 if (cp
->spec
[0] != '@')
8362 /* A non-alias entry: return it. */
8365 /* An alias entry maps a suffix to a language.
8366 Search for the language; pass 0 for NAME and LENGTH
8367 to avoid infinite recursion if language not found. */
8368 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
8374 save_string (const char *s
, int len
)
8376 char *result
= XNEWVEC (char, len
+ 1);
8378 gcc_checking_assert (strlen (s
) >= (unsigned int) len
);
8379 memcpy (result
, s
, len
);
8385 pfatal_with_name (const char *name
)
8387 perror_with_name (name
);
8388 delete_temp_files ();
8393 perror_with_name (const char *name
)
8395 error ("%s: %m", name
);
8399 validate_switches_from_spec (const char *spec
, bool user
)
8401 const char *p
= spec
;
8404 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
8405 /* We have a switch spec. */
8406 p
= validate_switches (p
+ 1, user
);
8410 validate_all_switches (void)
8412 struct compiler
*comp
;
8413 struct spec_list
*spec
;
8415 for (comp
= compilers
; comp
->spec
; comp
++)
8416 validate_switches_from_spec (comp
->spec
, false);
8418 /* Look through the linked list of specs read from the specs file. */
8419 for (spec
= specs
; spec
; spec
= spec
->next
)
8420 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
8422 validate_switches_from_spec (link_command_spec
, false);
8425 /* Look at the switch-name that comes after START
8426 and mark as valid all supplied switches that match it. */
8429 validate_switches (const char *start
, bool user_spec
)
8431 const char *p
= start
;
8435 bool suffix
= false;
8436 bool starred
= false;
8438 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
8447 if (*p
== '.' || *p
== ',')
8451 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
8452 || *p
== ',' || *p
== '.' || *p
== '@')
8457 starred
= true, p
++;
8463 /* Mark all matching switches as valid. */
8464 for (i
= 0; i
< n_switches
; i
++)
8465 if (!strncmp (switches
[i
].part1
, atom
, len
)
8466 && (starred
|| switches
[i
].part1
[len
] == '\0')
8467 && (switches
[i
].known
|| user_spec
))
8468 switches
[i
].validated
= true;
8472 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
8475 if (*p
&& p
[-1] == ':')
8477 while (*p
&& *p
!= ';' && *p
!= '}')
8482 if (*p
== '{' || *p
== '<')
8483 p
= validate_switches (p
+1, user_spec
);
8484 else if (p
[0] == 'W' && p
[1] == '{')
8485 p
= validate_switches (p
+2, user_spec
);
8492 if (*p
&& p
[-1] == ';')
8506 static struct mdswitchstr
*mdswitches
;
8507 static int n_mdswitches
;
8509 /* Check whether a particular argument was used. The first time we
8510 canonicalize the switches to keep only the ones we care about. */
8515 int operator () (const char *p
, int len
);
8522 const char *replace
;
8527 mswitchstr
*mswitches
;
8532 used_arg_t used_arg
;
8535 used_arg_t::operator () (const char *p
, int len
)
8541 struct mswitchstr
*matches
;
8545 /* Break multilib_matches into the component strings of string
8546 and replacement string. */
8547 for (q
= multilib_matches
; *q
!= '\0'; q
++)
8552 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
8554 q
= multilib_matches
;
8563 fatal_error (input_location
, "multilib spec %qs is invalid",
8568 matches
[i
].len
= q
- matches
[i
].str
;
8570 matches
[i
].replace
= ++q
;
8571 while (*q
!= ';' && *q
!= '\0')
8574 goto invalid_matches
;
8577 matches
[i
].rep_len
= q
- matches
[i
].replace
;
8583 /* Now build a list of the replacement string for switches that we care
8584 about. Make sure we allocate at least one entry. This prevents
8585 xmalloc from calling fatal, and prevents us from re-executing this
8588 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
8589 for (i
= 0; i
< n_switches
; i
++)
8590 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
8592 int xlen
= strlen (switches
[i
].part1
);
8593 for (j
= 0; j
< cnt
; j
++)
8594 if (xlen
== matches
[j
].len
8595 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
8597 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
8598 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
8599 mswitches
[n_mswitches
].replace
= (char *) 0;
8600 mswitches
[n_mswitches
].rep_len
= 0;
8606 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
8607 on the command line nor any options mutually incompatible with
8609 for (i
= 0; i
< n_mdswitches
; i
++)
8613 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
8619 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
8620 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
8622 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8629 if (*q
!= ' ' && *q
!= '\0')
8631 while (*r
!= ' ' && *r
!= '\0')
8634 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8637 if (used_arg (r
, q
- r
))
8642 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
8643 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
8644 mswitches
[n_mswitches
].replace
= (char *) 0;
8645 mswitches
[n_mswitches
].rep_len
= 0;
8658 for (i
= 0; i
< n_mswitches
; i
++)
8659 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8665 void used_arg_t::finalize ()
8667 XDELETEVEC (mswitches
);
8674 default_arg (const char *p
, int len
)
8678 for (i
= 0; i
< n_mdswitches
; i
++)
8679 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8685 /* Work out the subdirectory to use based on the options. The format of
8686 multilib_select is a list of elements. Each element is a subdirectory
8687 name followed by a list of options followed by a semicolon. The format
8688 of multilib_exclusions is the same, but without the preceding
8689 directory. First gcc will check the exclusions, if none of the options
8690 beginning with an exclamation point are present, and all of the other
8691 options are present, then we will ignore this completely. Passing
8692 that, gcc will consider each multilib_select in turn using the same
8693 rules for matching the options. If a match is found, that subdirectory
8695 A subdirectory name is optionally followed by a colon and the corresponding
8699 set_multilib_dir (void)
8702 unsigned int this_path_len
;
8703 const char *this_path
, *this_arg
;
8704 const char *start
, *end
;
8706 int ok
, ndfltok
, first
;
8709 start
= multilib_defaults
;
8710 while (*start
== ' ' || *start
== '\t')
8712 while (*start
!= '\0')
8715 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8717 while (*start
== ' ' || *start
== '\t')
8725 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8726 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8728 while (*start
== ' ' || *start
== '\t')
8734 for (end
= start
+ 1;
8735 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8738 obstack_grow (&multilib_obstack
, start
, end
- start
);
8739 obstack_1grow (&multilib_obstack
, 0);
8740 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8741 mdswitches
[i
++].len
= end
- start
;
8748 p
= multilib_exclusions
;
8751 /* Ignore newlines. */
8758 /* Check the arguments. */
8765 fatal_error (input_location
, "multilib exclusions %qs is invalid",
8766 multilib_exclusions
);
8776 while (*p
!= ' ' && *p
!= ';')
8779 goto invalid_exclusions
;
8783 if (*this_arg
!= '!')
8791 ok
= used_arg (this_arg
, p
- this_arg
);
8806 p
= multilib_select
;
8808 /* Append multilib reuse rules if any. With those rules, we can reuse
8809 one multilib for certain different options sets. */
8810 if (strlen (multilib_reuse
) > 0)
8811 p
= concat (p
, multilib_reuse
, NULL
);
8815 /* Ignore newlines. */
8822 /* Get the initial path. */
8829 fatal_error (input_location
, "multilib select %qs %qs is invalid",
8830 multilib_select
, multilib_reuse
);
8834 this_path_len
= p
- this_path
;
8836 /* Check the arguments. */
8843 goto invalid_select
;
8852 while (*p
!= ' ' && *p
!= ';')
8855 goto invalid_select
;
8859 if (*this_arg
!= '!')
8867 /* If this is a default argument, we can just ignore it.
8868 This is true even if this_arg begins with '!'. Beginning
8869 with '!' does not mean that this argument is necessarily
8870 inappropriate for this library: it merely means that
8871 there is a more specific library which uses this
8872 argument. If this argument is a default, we need not
8873 consider that more specific library. */
8874 ok
= used_arg (this_arg
, p
- this_arg
);
8881 if (default_arg (this_arg
, p
- this_arg
))
8890 if (this_path_len
!= 1
8891 || this_path
[0] != '.')
8893 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
8896 strncpy (new_multilib_dir
, this_path
, this_path_len
);
8897 new_multilib_dir
[this_path_len
] = '\0';
8898 q
= strchr (new_multilib_dir
, ':');
8901 multilib_dir
= new_multilib_dir
;
8908 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8910 while (q
< end
&& *q
!= ':')
8914 const char *q2
= q
+ 1, *ml_end
= end
;
8915 char *new_multilib_os_dir
;
8917 while (q2
< end
&& *q2
!= ':')
8921 if (ml_end
- q
== 1)
8922 multilib_os_dir
= xstrdup (".");
8925 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
8926 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
8927 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
8928 multilib_os_dir
= new_multilib_os_dir
;
8931 if (q2
< end
&& *q2
== ':')
8933 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
8934 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
8935 new_multiarch_dir
[end
- q2
- 1] = '\0';
8936 multiarch_dir
= new_multiarch_dir
;
8945 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
8946 && strcmp (multilib_os_dir
, ".") == 0)
8948 free (CONST_CAST (char *, multilib_os_dir
));
8949 multilib_os_dir
= NULL
;
8951 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
8952 multilib_os_dir
= multilib_dir
;
8955 /* Print out the multiple library subdirectory selection
8956 information. This prints out a series of lines. Each line looks
8957 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8958 required. Only the desired options are printed out, the negative
8959 matches. The options are print without a leading dash. There are
8960 no spaces to make it easy to use the information in the shell.
8961 Each subdirectory is printed only once. This assumes the ordering
8962 generated by the genmultilib script. Also, we leave out ones that match
8966 print_multilib_info (void)
8968 const char *p
= multilib_select
;
8969 const char *last_path
= 0, *this_path
;
8971 unsigned int last_path_len
= 0;
8976 /* Ignore newlines. */
8983 /* Get the initial path. */
8990 fatal_error (input_location
,
8991 "multilib select %qs is invalid", multilib_select
);
8997 /* When --disable-multilib was used but target defines
8998 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
8999 with .:: for multiarch configurations) are there just to find
9000 multilib_os_dir, so skip them from output. */
9001 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
9004 /* Check for matches with the multilib_exclusions. We don't bother
9005 with the '!' in either list. If any of the exclusion rules match
9006 all of its options with the select rule, we skip it. */
9008 const char *e
= multilib_exclusions
;
9009 const char *this_arg
;
9014 /* Ignore newlines. */
9021 /* Check the arguments. */
9030 fatal_error (input_location
,
9031 "multilib exclusion %qs is invalid",
9032 multilib_exclusions
);
9043 while (*e
!= ' ' && *e
!= ';')
9046 goto invalid_exclusion
;
9054 int len
= e
- this_arg
;
9057 goto invalid_select
;
9061 while (*q
!= ' ' && *q
!= ';')
9064 goto invalid_select
;
9068 if (! strncmp (arg
, this_arg
,
9069 (len
< q
- arg
) ? q
- arg
: len
)
9070 || default_arg (this_arg
, e
- this_arg
))
9100 /* If this is a duplicate, skip it. */
9101 skip
= (last_path
!= 0
9102 && (unsigned int) (p
- this_path
) == last_path_len
9103 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
9105 last_path
= this_path
;
9106 last_path_len
= p
- this_path
;
9109 /* If this directory requires any default arguments, we can skip
9110 it. We will already have printed a directory identical to
9111 this one which does not require that default argument. */
9122 goto invalid_select
;
9129 while (*q
!= ' ' && *q
!= ';')
9132 goto invalid_select
;
9137 && default_arg (arg
, q
- arg
))
9152 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
9163 goto invalid_select
;
9171 use_arg
= *p
!= '!';
9176 while (*p
!= ' ' && *p
!= ';')
9179 goto invalid_select
;
9191 /* If there are extra options, print them now. */
9192 if (multilib_extra
&& *multilib_extra
)
9194 int print_at
= TRUE
;
9197 for (q
= multilib_extra
; *q
!= '\0'; q
++)
9218 /* getenv built-in spec function.
9220 Returns the value of the environment variable given by its first argument,
9221 concatenated with the second argument. If the variable is not defined, a
9222 fatal error is issued unless such undefs are internally allowed, in which
9223 case the variable name is used as the variable value. */
9226 getenv_spec_function (int argc
, const char **argv
)
9229 const char *varname
;
9239 value
= env
.get (varname
);
9241 if (!value
&& spec_undefvar_allowed
)
9245 fatal_error (input_location
,
9246 "environment variable %qs not defined", varname
);
9248 /* We have to escape every character of the environment variable so
9249 they are not interpreted as active spec characters. A
9250 particularly painful case is when we are reading a variable
9251 holding a windows path complete with \ separators. */
9252 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
9253 result
= XNEWVAR (char, len
);
9254 for (ptr
= result
; *value
; ptr
+= 2)
9260 strcpy (ptr
, argv
[1]);
9265 /* if-exists built-in spec function.
9267 Checks to see if the file specified by the absolute pathname in
9268 ARGS exists. Returns that pathname if found.
9270 The usual use for this function is to check for a library file
9271 (whose name has been expanded with %s). */
9274 if_exists_spec_function (int argc
, const char **argv
)
9276 /* Must have only one argument. */
9277 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9283 /* if-exists-else built-in spec function.
9285 This is like if-exists, but takes an additional argument which
9286 is returned if the first argument does not exist. */
9289 if_exists_else_spec_function (int argc
, const char **argv
)
9291 /* Must have exactly two arguments. */
9295 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9301 /* sanitize built-in spec function.
9303 This returns non-NULL, if sanitizing address, thread or
9304 any of the undefined behavior sanitizers. */
9307 sanitize_spec_function (int argc
, const char **argv
)
9312 if (strcmp (argv
[0], "address") == 0)
9313 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
9314 if (strcmp (argv
[0], "kernel-address") == 0)
9315 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
9316 if (strcmp (argv
[0], "thread") == 0)
9317 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
9318 if (strcmp (argv
[0], "undefined") == 0)
9319 return ((flag_sanitize
& (SANITIZE_UNDEFINED
| SANITIZE_NONDEFAULT
))
9320 && !flag_sanitize_undefined_trap_on_error
) ? "" : NULL
;
9321 if (strcmp (argv
[0], "leak") == 0)
9322 return ((flag_sanitize
9323 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
9324 == SANITIZE_LEAK
) ? "" : NULL
;
9328 /* replace-outfile built-in spec function.
9330 This looks for the first argument in the outfiles array's name and
9331 replaces it with the second argument. */
9334 replace_outfile_spec_function (int argc
, const char **argv
)
9337 /* Must have exactly two arguments. */
9341 for (i
= 0; i
< n_infiles
; i
++)
9343 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9344 outfiles
[i
] = xstrdup (argv
[1]);
9349 /* remove-outfile built-in spec function.
9351 * This looks for the first argument in the outfiles array's name and
9355 remove_outfile_spec_function (int argc
, const char **argv
)
9358 /* Must have exactly one argument. */
9362 for (i
= 0; i
< n_infiles
; i
++)
9364 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9370 /* Given two version numbers, compares the two numbers.
9371 A version number must match the regular expression
9372 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
9375 compare_version_strings (const char *v1
, const char *v2
)
9380 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
9381 REG_EXTENDED
| REG_NOSUB
) != 0)
9383 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
9384 if (rresult
== REG_NOMATCH
)
9385 fatal_error (input_location
, "invalid version number %qs", v1
);
9386 else if (rresult
!= 0)
9388 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
9389 if (rresult
== REG_NOMATCH
)
9390 fatal_error (input_location
, "invalid version number %qs", v2
);
9391 else if (rresult
!= 0)
9394 return strverscmp (v1
, v2
);
9398 /* version_compare built-in spec function.
9400 This takes an argument of the following form:
9402 <comparison-op> <arg1> [<arg2>] <switch> <result>
9404 and produces "result" if the comparison evaluates to true,
9405 and nothing if it doesn't.
9407 The supported <comparison-op> values are:
9409 >= true if switch is a later (or same) version than arg1
9411 < true if switch is an earlier version than arg1
9413 >< true if switch is arg1 or later, and earlier than arg2
9414 <> true if switch is earlier than arg1 or is arg2 or later
9416 If the switch is not present, the condition is false unless
9417 the first character of the <comparison-op> is '!'.
9420 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
9421 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
9424 version_compare_spec_function (int argc
, const char **argv
)
9428 const char *switch_value
= NULL
;
9433 fatal_error (input_location
, "too few arguments to %%:version-compare");
9434 if (argv
[0][0] == '\0')
9436 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
9438 if (argc
!= nargs
+ 3)
9439 fatal_error (input_location
, "too many arguments to %%:version-compare");
9441 switch_len
= strlen (argv
[nargs
+ 1]);
9442 for (i
= 0; i
< n_switches
; i
++)
9443 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
9444 && check_live_switch (i
, switch_len
))
9445 switch_value
= switches
[i
].part1
+ switch_len
;
9447 if (switch_value
== NULL
)
9451 comp1
= compare_version_strings (switch_value
, argv
[1]);
9453 comp2
= compare_version_strings (switch_value
, argv
[2]);
9455 comp2
= -1; /* This value unused. */
9458 switch (argv
[0][0] << 8 | argv
[0][1])
9460 case '>' << 8 | '=':
9461 result
= comp1
>= 0;
9463 case '!' << 8 | '<':
9464 result
= comp1
>= 0 || switch_value
== NULL
;
9469 case '!' << 8 | '>':
9470 result
= comp1
< 0 || switch_value
== NULL
;
9472 case '>' << 8 | '<':
9473 result
= comp1
>= 0 && comp2
< 0;
9475 case '<' << 8 | '>':
9476 result
= comp1
< 0 || comp2
>= 0;
9480 fatal_error (input_location
,
9481 "unknown operator %qs in %%:version-compare", argv
[0]);
9486 return argv
[nargs
+ 2];
9489 /* %:include builtin spec function. This differs from %include in that it
9490 can be nested inside a spec, and thus be conditionalized. It takes
9491 one argument, the filename, and looks for it in the startfile path.
9492 The result is always NULL, i.e. an empty expansion. */
9495 include_spec_function (int argc
, const char **argv
)
9502 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
9503 read_specs (file
? file
: argv
[0], false, false);
9508 /* %:find-file spec function. This function replaces its argument by
9509 the file found through find_file, that is the -print-file-name gcc
9512 find_file_spec_function (int argc
, const char **argv
)
9519 file
= find_file (argv
[0]);
9524 /* %:find-plugindir spec function. This function replaces its argument
9525 by the -iplugindir=<dir> option. `dir' is found through find_file, that
9526 is the -print-file-name gcc program option. */
9528 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
9535 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
9540 /* %:print-asm-header spec function. Print a banner to say that the
9541 following output is from the assembler. */
9544 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
9545 const char **argv ATTRIBUTE_UNUSED
)
9547 printf (_("Assembler options\n=================\n\n"));
9548 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
9553 /* Get a random number for -frandom-seed */
9555 static unsigned HOST_WIDE_INT
9556 get_random_number (void)
9558 unsigned HOST_WIDE_INT ret
= 0;
9561 fd
= open ("/dev/urandom", O_RDONLY
);
9564 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
9570 /* Get some more or less random data. */
9571 #ifdef HAVE_GETTIMEOFDAY
9575 gettimeofday (&tv
, NULL
);
9576 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
9580 time_t now
= time (NULL
);
9582 if (now
!= (time_t)-1)
9583 ret
= (unsigned) now
;
9587 return ret
^ getpid ();
9590 /* %:compare-debug-dump-opt spec function. Save the last argument,
9591 expected to be the last -fdump-final-insns option, or generate a
9595 compare_debug_dump_opt_spec_function (int arg
,
9596 const char **argv ATTRIBUTE_UNUSED
)
9601 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
9604 fatal_error (input_location
,
9605 "too many arguments to %%:compare-debug-dump-opt");
9607 do_spec_2 ("%{fdump-final-insns=*:%*}");
9608 do_spec_1 (" ", 0, NULL
);
9610 if (argbuf
.length () > 0
9611 && strcmp (argv
[argbuf
.length () - 1], "."))
9616 name
= xstrdup (argv
[argbuf
.length () - 1]);
9621 const char *ext
= NULL
;
9623 if (argbuf
.length () > 0)
9625 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
9628 else if (!compare_debug
)
9631 do_spec_2 ("%g.gkd");
9633 do_spec_1 (" ", 0, NULL
);
9635 gcc_assert (argbuf
.length () > 0);
9637 name
= concat (argbuf
.last (), ext
, NULL
);
9639 ret
= concat ("-fdump-final-insns=", name
, NULL
);
9642 which
= compare_debug
< 0;
9643 debug_check_temp_file
[which
] = name
;
9647 unsigned HOST_WIDE_INT value
= get_random_number ();
9649 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
9655 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
9666 static const char *debug_auxbase_opt
;
9668 /* %:compare-debug-self-opt spec function. Expands to the options
9669 that are to be passed in the second compilation of
9673 compare_debug_self_opt_spec_function (int arg
,
9674 const char **argv ATTRIBUTE_UNUSED
)
9677 fatal_error (input_location
,
9678 "too many arguments to %%:compare-debug-self-opt");
9680 if (compare_debug
>= 0)
9683 do_spec_2 ("%{c|S:%{o*:%*}}");
9684 do_spec_1 (" ", 0, NULL
);
9686 if (argbuf
.length () > 0)
9687 debug_auxbase_opt
= concat ("-auxbase-strip ",
9691 debug_auxbase_opt
= NULL
;
9694 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
9695 %<fdump-final-insns=* -w -S -o %j \
9696 %{!fcompare-debug-second:-fcompare-debug-second} \
9697 ", compare_debug_opt
, NULL
);
9700 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
9701 options that are to be passed in the second compilation of
9702 compare-debug. It expects, as an argument, the basename of the
9703 current input file name, with the .gk suffix appended to it. */
9706 compare_debug_auxbase_opt_spec_function (int arg
,
9713 fatal_error (input_location
,
9714 "too few arguments to %%:compare-debug-auxbase-opt");
9717 fatal_error (input_location
,
9718 "too many arguments to %%:compare-debug-auxbase-opt");
9720 if (compare_debug
>= 0)
9723 len
= strlen (argv
[0]);
9724 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
9725 fatal_error (input_location
, "argument to %%:compare-debug-auxbase-opt "
9726 "does not end in .gk");
9728 if (debug_auxbase_opt
)
9729 return debug_auxbase_opt
;
9731 #define OPT "-auxbase "
9734 name
= (char*) xmalloc (sizeof (OPT
) + len
);
9735 memcpy (name
, OPT
, sizeof (OPT
) - 1);
9736 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
9737 name
[sizeof (OPT
) - 1 + len
] = '\0';
9744 /* %:pass-through-libs spec function. Finds all -l options and input
9745 file names in the lib spec passed to it, and makes a list of them
9746 prepended with the plugin option to cause them to be passed through
9747 to the final link after all the new object files have been added. */
9750 pass_through_libs_spec_func (int argc
, const char **argv
)
9752 char *prepended
= xstrdup (" ");
9754 /* Shlemiel the painter's algorithm. Innately horrible, but at least
9755 we know that there will never be more than a handful of strings to
9756 concat, and it's only once per run, so it's not worth optimising. */
9757 for (n
= 0; n
< argc
; n
++)
9759 char *old
= prepended
;
9760 /* Anything that isn't an option is a full path to an output
9761 file; pass it through if it ends in '.a'. Among options,
9763 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
9765 const char *lopt
= argv
[n
] + 2;
9766 /* Handle both joined and non-joined -l options. If for any
9767 reason there's a trailing -l with no joined or following
9768 arg just discard it. */
9769 if (!*lopt
&& ++n
>= argc
)
9773 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
9776 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
9778 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
9779 argv
[n
], " ", NULL
);
9781 if (prepended
!= old
)
9787 /* %:replace-extension spec function. Replaces the extension of the
9788 first argument with the second argument. */
9791 replace_extension_spec_func (int argc
, const char **argv
)
9799 fatal_error (input_location
, "too few arguments to %%:replace-extension");
9801 name
= xstrdup (argv
[0]);
9803 for (i
= strlen (name
) - 1; i
>= 0; i
--)
9804 if (IS_DIR_SEPARATOR (name
[i
]))
9807 p
= strrchr (name
+ i
+ 1, '.');
9811 result
= concat (name
, argv
[1], NULL
);
9817 /* Returns "" if ARGV[ARGC - 2] is greater than ARGV[ARGC-1].
9818 Otherwise, return NULL. */
9821 greater_than_spec_func (int argc
, const char **argv
)
9828 gcc_assert (argc
>= 2);
9830 long arg
= strtol (argv
[argc
- 2], &converted
, 10);
9831 gcc_assert (converted
!= argv
[argc
- 2]);
9833 long lim
= strtol (argv
[argc
- 1], &converted
, 10);
9834 gcc_assert (converted
!= argv
[argc
- 1]);
9842 /* Insert backslash before spaces in ORIG (usually a file path), to
9843 avoid being broken by spec parser.
9845 This function is needed as do_spec_1 treats white space (' ' and '\t')
9846 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
9847 the file name should be treated as a single argument rather than being
9848 broken into multiple. Solution is to insert '\\' before the space in a
9851 This function converts and only converts all occurrence of ' '
9852 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
9856 "a\\ b" -> "a\\\\ b"
9858 orig: input null-terminating string that was allocated by xalloc. The
9859 memory it points to might be freed in this function. Behavior undefined
9860 if ORIG wasn't xalloced or was freed already at entry.
9862 Return: ORIG if no conversion needed. Otherwise a newly allocated string
9863 that was converted from ORIG. */
9866 convert_white_space (char *orig
)
9868 int len
, number_of_space
= 0;
9870 for (len
= 0; orig
[len
]; len
++)
9871 if (orig
[len
] == ' ' || orig
[len
] == '\t') number_of_space
++;
9873 if (number_of_space
)
9875 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
9877 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
9879 if (orig
[j
] == ' ' || orig
[j
] == '\t')
9880 new_spec
[k
++] = '\\';
9881 new_spec
[k
] = orig
[j
];
9891 path_prefix_reset (path_prefix
*prefix
)
9893 struct prefix_list
*iter
, *next
;
9894 iter
= prefix
->plist
;
9898 free (const_cast <char *> (iter
->prefix
));
9903 prefix
->max_len
= 0;
9906 /* Restore all state within gcc.c to the initial state, so that the driver
9907 code can be safely re-run in-process.
9909 Many const char * variables are referenced by static specs (see
9910 INIT_STATIC_SPEC above). These variables are restored to their default
9911 values by a simple loop over the static specs.
9913 For other variables, we directly restore them all to their initial
9914 values (often implicitly 0).
9916 Free the various obstacks in this file, along with "opts_obstack"
9919 This function also restores any environment variables that were changed. */
9925 params_c_finalize ();
9926 diagnostic_finish (global_dc
);
9929 at_file_supplied
= 0;
9930 print_help_list
= 0;
9932 verbose_only_flag
= 0;
9933 print_subprocess_help
= 0;
9935 report_times_to_file
= NULL
;
9936 target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
9937 target_system_root_changed
= 0;
9938 target_sysroot_suffix
= 0;
9939 target_sysroot_hdrs_suffix
= 0;
9940 save_temps_flag
= SAVE_TEMPS_NONE
;
9941 save_temps_prefix
= 0;
9942 save_temps_length
= 0;
9943 spec_machine
= DEFAULT_TARGET_MACHINE
;
9944 greatest_status
= 1;
9946 finalize_options_struct (&global_options
);
9947 finalize_options_struct (&global_options_set
);
9949 obstack_free (&obstack
, NULL
);
9950 obstack_free (&opts_obstack
, NULL
); /* in opts.c */
9951 obstack_free (&collect_obstack
, NULL
);
9953 link_command_spec
= LINK_COMMAND_SPEC
;
9955 obstack_free (&multilib_obstack
, NULL
);
9957 user_specs_head
= NULL
;
9958 user_specs_tail
= NULL
;
9960 /* Within the "compilers" vec, the fields "suffix" and "spec" were
9961 statically allocated for the default compilers, but dynamically
9962 allocated for additional compilers. Delete them for the latter. */
9963 for (int i
= n_default_compilers
; i
< n_compilers
; i
++)
9965 free (const_cast <char *> (compilers
[i
].suffix
));
9966 free (const_cast <char *> (compilers
[i
].spec
));
9968 XDELETEVEC (compilers
);
9972 linker_options
.truncate (0);
9973 assembler_options
.truncate (0);
9974 preprocessor_options
.truncate (0);
9976 path_prefix_reset (&exec_prefixes
);
9977 path_prefix_reset (&startfile_prefixes
);
9978 path_prefix_reset (&include_prefixes
);
9981 just_machine_suffix
= 0;
9982 gcc_exec_prefix
= 0;
9983 gcc_libexec_prefix
= 0;
9984 md_exec_prefix
= MD_EXEC_PREFIX
;
9985 md_startfile_prefix
= MD_STARTFILE_PREFIX
;
9986 md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
9988 multilib_os_dir
= 0;
9991 /* Free any specs dynamically-allocated by set_spec.
9992 These will be at the head of the list, before the
9993 statically-allocated ones. */
9996 while (specs
!= static_specs
)
9998 spec_list
*next
= specs
->next
;
9999 free (const_cast <char *> (specs
->name
));
10005 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
10007 spec_list
*sl
= &static_specs
[i
];
10011 free (const_cast <char *> (*(sl
->ptr_spec
)));
10012 sl
->alloc_p
= false;
10014 *(sl
->ptr_spec
) = sl
->default_ptr
;
10017 extra_specs
= NULL
;
10020 processing_spec_function
= 0;
10022 argbuf
.truncate (0);
10028 execution_count
= 0;
10031 temp_filename
= NULL
;
10032 temp_filename_length
= 0;
10033 always_delete_queue
= NULL
;
10034 failure_delete_queue
= NULL
;
10036 XDELETEVEC (switches
);
10039 n_switches_alloc
= 0;
10042 compare_debug_second
= 0;
10043 compare_debug_opt
= NULL
;
10044 for (int i
= 0; i
< 2; i
++)
10046 switches_debug_check
[i
] = NULL
;
10047 n_switches_debug_check
[i
] = 0;
10048 n_switches_alloc_debug_check
[i
] = 0;
10049 debug_check_temp_file
[i
] = NULL
;
10052 XDELETEVEC (infiles
);
10055 n_infiles_alloc
= 0;
10057 combine_inputs
= false;
10058 added_libraries
= 0;
10059 XDELETEVEC (outfiles
);
10062 last_language_n_infiles
= 0;
10063 gcc_input_filename
= NULL
;
10064 input_file_number
= 0;
10065 input_filename_length
= 0;
10066 basename_length
= 0;
10067 suffixed_basename_length
= 0;
10068 input_basename
= NULL
;
10069 input_suffix
= NULL
;
10070 /* We don't need to purge "input_stat", just to unset "input_stat_set". */
10071 input_stat_set
= 0;
10072 input_file_compiler
= NULL
;
10074 delete_this_arg
= 0;
10075 this_is_output_file
= 0;
10076 this_is_library_file
= 0;
10077 this_is_linker_script
= 0;
10078 input_from_pipe
= 0;
10079 suffix_subst
= NULL
;
10084 debug_auxbase_opt
= NULL
;
10086 used_arg
.finalize ();
10090 Targets can provide configure-time default options in
10091 OPTION_DEFAULT_SPECS. The jit needs to access these, but
10092 they are expressed in the spec language.
10094 Run just enough of the driver to be able to expand these
10095 specs, and then call the callback CB on each
10096 such option. The options strings are *without* a leading
10097 '-' character e.g. ("march=x86-64"). Finally, clean up. */
10100 driver_get_configure_time_options (void (*cb
) (const char *option
,
10106 obstack_init (&obstack
);
10107 init_opts_obstack ();
10110 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
10111 do_option_spec (option_default_specs
[i
].name
,
10112 option_default_specs
[i
].spec
);
10114 for (i
= 0; (int) i
< n_switches
; i
++)
10116 gcc_assert (switches
[i
].part1
);
10117 (*cb
) (switches
[i
].part1
, user_data
);
10120 obstack_free (&opts_obstack
, NULL
);
10121 obstack_free (&obstack
, NULL
);