1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2019 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 /* This program is the user interface to the C compiler and possibly to
21 other compilers. It is used because compilation is a complicated procedure
22 which involves running several programs and passing temporary files between
23 them, forwarding the users switches to those programs selectively,
24 and deleting the temporary files at the end.
26 CC recognizes how to compile each input file by suffixes in the file names.
27 Once it knows which kind of compilation to perform, the procedure for
28 compilation is specified by a string called a "spec". */
32 #include "coretypes.h"
33 #include "multilib.h" /* before tm.h */
39 #include "opt-suggestions.h"
41 #include "diagnostic.h"
45 #include "filenames.h"
46 #include "spellcheck.h"
50 /* Manage the manipulation of env vars.
52 We poison "getenv" and "putenv", so that all enviroment-handling is
53 done through this class. Note that poisoning happens in the
54 preprocessor at the identifier level, and doesn't distinguish between
58 Hence we need to use "get" for the accessor method, not "getenv". */
63 void init (bool can_restore
, bool debug
);
64 const char *get (const char *name
);
65 void xput (const char *string
);
80 /* The singleton instance of class env_manager. */
82 static env_manager env
;
84 /* Initializer for class env_manager.
86 We can't do this as a constructor since we have a statically
87 allocated instance ("env" above). */
90 env_manager::init (bool can_restore
, bool debug
)
92 m_can_restore
= can_restore
;
96 /* Get the value of NAME within the environment. Essentially
97 a wrapper for ::getenv, but adding logging, and the possibility
98 of caching results. */
101 env_manager::get (const char *name
)
103 const char *result
= ::getenv (name
);
105 fprintf (stderr
, "env_manager::getenv (%s) -> %s\n", name
, result
);
109 /* Put the given KEY=VALUE entry STRING into the environment.
110 If the env_manager was initialized with CAN_RESTORE set, then
111 also record the old value of KEY within the environment, so that it
112 can be later restored. */
115 env_manager::xput (const char *string
)
118 fprintf (stderr
, "env_manager::xput (%s)\n", string
);
120 fnotice (stderr
, "%s\n", string
);
124 char *equals
= strchr (const_cast <char *> (string
), '=');
128 kv
.m_key
= xstrndup (string
, equals
- string
);
129 const char *cur_value
= ::getenv (kv
.m_key
);
131 fprintf (stderr
, "saving old value: %s\n",cur_value
);
132 kv
.m_value
= cur_value
? xstrdup (cur_value
) : NULL
;
133 m_keys
.safe_push (kv
);
136 ::putenv (CONST_CAST (char *, string
));
139 /* Undo any xputenv changes made since last restore.
140 Can only be called if the env_manager was initialized with
141 CAN_RESTORE enabled. */
144 env_manager::restore ()
149 gcc_assert (m_can_restore
);
151 FOR_EACH_VEC_ELT_REVERSE (m_keys
, i
, item
)
154 printf ("restoring saved key: %s value: %s\n", item
->m_key
, item
->m_value
);
156 ::setenv (item
->m_key
, item
->m_value
, 1);
158 ::unsetenv (item
->m_key
);
160 free (item
->m_value
);
166 /* Forbid other uses of getenv and putenv. */
167 #if (GCC_VERSION >= 3000)
168 #pragma GCC poison getenv putenv
173 /* By default there is no special suffix for target executables. */
174 #ifdef TARGET_EXECUTABLE_SUFFIX
175 #define HAVE_TARGET_EXECUTABLE_SUFFIX
177 #define TARGET_EXECUTABLE_SUFFIX ""
180 /* By default there is no special suffix for host executables. */
181 #ifdef HOST_EXECUTABLE_SUFFIX
182 #define HAVE_HOST_EXECUTABLE_SUFFIX
184 #define HOST_EXECUTABLE_SUFFIX ""
187 /* By default, the suffix for target object files is ".o". */
188 #ifdef TARGET_OBJECT_SUFFIX
189 #define HAVE_TARGET_OBJECT_SUFFIX
191 #define TARGET_OBJECT_SUFFIX ".o"
194 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
196 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
197 #ifndef LIBRARY_PATH_ENV
198 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
201 /* If a stage of compilation returns an exit status >= 1,
202 compilation of that file ceases. */
204 #define MIN_FATAL_STATUS 1
206 /* Flag set by cppspec.c to 1. */
209 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
210 static bool at_file_supplied
;
212 /* Definition of string containing the arguments given to configure. */
213 #include "configargs.h"
215 /* Flag saying to print the command line options understood by gcc and its
218 static int print_help_list
;
220 /* Flag saying to print the version of gcc and its sub-processes. */
222 static int print_version
;
224 /* Flag that stores string prefix for which we provide bash completion. */
226 static const char *completion
= NULL
;
228 /* Flag indicating whether we should ONLY print the command and
229 arguments (like verbose_flag) without executing the command.
230 Displayed arguments are quoted so that the generated command
231 line is suitable for execution. This is intended for use in
232 shell scripts to capture the driver-generated command line. */
233 static int verbose_only_flag
;
235 /* Flag indicating how to print command line options of sub-processes. */
237 static int print_subprocess_help
;
239 /* Linker suffix passed to -fuse-ld=... */
240 static const char *use_ld
;
242 /* Whether we should report subprocess execution times to a file. */
244 FILE *report_times_to_file
= NULL
;
246 /* Nonzero means place this string before uses of /, so that include
247 and library files can be found in an alternate location. */
249 #ifdef TARGET_SYSTEM_ROOT
250 #define DEFAULT_TARGET_SYSTEM_ROOT (TARGET_SYSTEM_ROOT)
252 #define DEFAULT_TARGET_SYSTEM_ROOT (0)
254 static const char *target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
256 /* Nonzero means pass the updated target_system_root to the compiler. */
258 static int target_system_root_changed
;
260 /* Nonzero means append this string to target_system_root. */
262 static const char *target_sysroot_suffix
= 0;
264 /* Nonzero means append this string to target_system_root for headers. */
266 static const char *target_sysroot_hdrs_suffix
= 0;
268 /* Nonzero means write "temp" files in source directory
269 and use the source file's name in them, and don't delete them. */
271 static enum save_temps
{
272 SAVE_TEMPS_NONE
, /* no -save-temps */
273 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
274 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
277 /* Output file to use to get the object directory for -save-temps=obj */
278 static char *save_temps_prefix
= 0;
279 static size_t save_temps_length
= 0;
281 /* The compiler version. */
283 static const char *compiler_version
;
285 /* The target version. */
287 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
289 /* The target machine. */
291 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
292 static const char *spec_host_machine
= DEFAULT_REAL_TARGET_MACHINE
;
294 /* List of offload targets. Separated by colon. Empty string for
295 -foffload=disable. */
297 static char *offload_targets
= NULL
;
299 /* Nonzero if cross-compiling.
300 When -b is used, the value comes from the `specs' file. */
302 #ifdef CROSS_DIRECTORY_STRUCTURE
303 static const char *cross_compile
= "1";
305 static const char *cross_compile
= "0";
308 /* Greatest exit code of sub-processes that has been encountered up to
310 static int greatest_status
= 1;
312 /* This is the obstack which we use to allocate many strings. */
314 static struct obstack obstack
;
316 /* This is the obstack to build an environment variable to pass to
317 collect2 that describes all of the relevant switches of what to
318 pass the compiler in building the list of pointers to constructors
321 static struct obstack collect_obstack
;
323 /* Forward declaration for prototypes. */
327 static void init_spec (void);
328 static void store_arg (const char *, int, int);
329 static void insert_wrapper (const char *);
330 static char *load_specs (const char *);
331 static void read_specs (const char *, bool, bool);
332 static void set_spec (const char *, const char *, bool);
333 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
334 static char *build_search_list (const struct path_prefix
*, const char *,
336 static void xputenv (const char *);
337 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
339 static int access_check (const char *, int);
340 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
341 static void add_prefix (struct path_prefix
*, const char *, const char *,
343 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
344 const char *, int, int, int);
345 static char *skip_whitespace (char *);
346 static void delete_if_ordinary (const char *);
347 static void delete_temp_files (void);
348 static void delete_failure_queue (void);
349 static void clear_failure_queue (void);
350 static int check_live_switch (int, int);
351 static const char *handle_braces (const char *);
352 static inline bool input_suffix_matches (const char *, const char *);
353 static inline bool switch_matches (const char *, const char *, int);
354 static inline void mark_matching_switches (const char *, const char *, int);
355 static inline void process_marked_switches (void);
356 static const char *process_brace_body (const char *, const char *, const char *, int, int);
357 static const struct spec_function
*lookup_spec_function (const char *);
358 static const char *eval_spec_function (const char *, const char *, const char *);
359 static const char *handle_spec_function (const char *, bool *, const char *);
360 static char *save_string (const char *, int);
361 static void set_collect_gcc_options (void);
362 static int do_spec_1 (const char *, int, const char *);
363 static int do_spec_2 (const char *, const char *);
364 static void do_option_spec (const char *, const char *);
365 static void do_self_spec (const char *);
366 static const char *find_file (const char *);
367 static int is_directory (const char *, bool);
368 static const char *validate_switches (const char *, bool);
369 static void validate_all_switches (void);
370 static inline void validate_switches_from_spec (const char *, bool);
371 static void give_switch (int, int);
372 static int default_arg (const char *, int);
373 static void set_multilib_dir (void);
374 static void print_multilib_info (void);
375 static void display_help (void);
376 static void add_preprocessor_option (const char *, int);
377 static void add_assembler_option (const char *, int);
378 static void add_linker_option (const char *, int);
379 static void process_command (unsigned int, struct cl_decoded_option
*);
380 static int execute (void);
381 static void alloc_args (void);
382 static void clear_args (void);
383 static void fatal_signal (int);
384 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
385 static void init_gcc_specs (struct obstack
*, const char *, const char *,
388 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
389 static const char *convert_filename (const char *, int, int);
392 static void try_generate_repro (const char **argv
);
393 static const char *getenv_spec_function (int, const char **);
394 static const char *if_exists_spec_function (int, const char **);
395 static const char *if_exists_else_spec_function (int, const char **);
396 static const char *sanitize_spec_function (int, const char **);
397 static const char *replace_outfile_spec_function (int, const char **);
398 static const char *remove_outfile_spec_function (int, const char **);
399 static const char *version_compare_spec_function (int, const char **);
400 static const char *include_spec_function (int, const char **);
401 static const char *find_file_spec_function (int, const char **);
402 static const char *find_plugindir_spec_function (int, const char **);
403 static const char *print_asm_header_spec_function (int, const char **);
404 static const char *compare_debug_dump_opt_spec_function (int, const char **);
405 static const char *compare_debug_self_opt_spec_function (int, const char **);
406 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
407 static const char *pass_through_libs_spec_func (int, const char **);
408 static const char *replace_extension_spec_func (int, const char **);
409 static const char *greater_than_spec_func (int, const char **);
410 static const char *debug_level_greater_than_spec_func (int, const char **);
411 static const char *find_fortran_preinclude_file (int, const char **);
412 static char *convert_white_space (char *);
414 /* The Specs Language
416 Specs are strings containing lines, each of which (if not blank)
417 is made up of a program name, and arguments separated by spaces.
418 The program name must be exact and start from root, since no path
419 is searched and it is unreliable to depend on the current working directory.
420 Redirection of input or output is not supported; the subprograms must
421 accept filenames saying what files to read and write.
423 In addition, the specs can contain %-sequences to substitute variable text
424 or for conditional text. Here is a table of all defined %-sequences.
425 Note that spaces are not generated automatically around the results of
426 expanding these sequences; therefore, you can concatenate them together
427 or with constant text in a single argument.
429 %% substitute one % into the program name or argument.
430 %i substitute the name of the input file being processed.
431 %b substitute the basename of the input file being processed.
432 This is the substring up to (and not including) the last period
433 and not including the directory unless -save-temps was specified
434 to put temporaries in a different location.
435 %B same as %b, but include the file suffix (text after the last period).
437 substitute a file name that has suffix SUFFIX and is chosen
438 once per compilation, and mark the argument a la %d. To reduce
439 exposure to denial-of-service attacks, the file name is now
440 chosen in a way that is hard to predict even when previously
441 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
442 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
443 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
444 had been pre-processed. Previously, %g was simply substituted
445 with a file name chosen once per compilation, without regard
446 to any appended suffix (which was therefore treated just like
447 ordinary text), making such attacks more likely to succeed.
449 like %g, but if -pipe is in effect, expands simply to "-".
451 like %g, but if -pipe is in effect, expands to nothing. (We have both
452 %| and %m to accommodate differences between system assemblers; see
453 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
455 like %g, but generates a new temporary file name even if %uSUFFIX
458 substitutes the last file name generated with %uSUFFIX, generating a
459 new one if there is no such last file name. In the absence of any
460 %uSUFFIX, this is just like %gSUFFIX, except they don't share
461 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
462 would involve the generation of two distinct file names, one
463 for each `%g.s' and another for each `%U.s'. Previously, %U was
464 simply substituted with a file name chosen for the previous %u,
465 without regard to any appended suffix.
467 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
468 writable, and if save-temps is off; otherwise, substitute the name
469 of a temporary file, just like %u. This temporary file is not
470 meant for communication between processes, but rather as a junk
473 substitutes .SUFFIX for the suffixes of a matched switch's args when
474 it is subsequently output with %*. SUFFIX is terminated by the next
476 %d marks the argument containing or following the %d as a
477 temporary file name, so that file will be deleted if GCC exits
478 successfully. Unlike %g, this contributes no text to the argument.
479 %w marks the argument containing or following the %w as the
480 "output file" of this compilation. This puts the argument
481 into the sequence of arguments that %o will substitute later.
482 %V indicates that this compilation produces no "output file".
484 like %{...} but marks the last argument supplied within as a file
485 to be deleted on failure.
487 like %{...} but puts the result into a FILE and substitutes @FILE
488 if an @file argument has been supplied.
489 %o substitutes the names of all the output files, with spaces
490 automatically placed around them. You should write spaces
491 around the %o as well or the results are undefined.
492 %o is for use in the specs for running the linker.
493 Input files whose names have no recognized suffix are not compiled
494 at all, but they are included among the output files, so they will
496 %O substitutes the suffix for object files. Note that this is
497 handled specially when it immediately follows %g, %u, or %U
498 (with or without a suffix argument) because of the need for
499 those to form complete file names. The handling is such that
500 %O is treated exactly as if it had already been substituted,
501 except that %g, %u, and %U do not currently support additional
502 SUFFIX characters following %O as they would following, for
504 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
505 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
506 and -B options) and -imultilib as necessary.
507 %s current argument is the name of a library or startup file of some sort.
508 Search for that file in a standard list of directories
509 and substitute the full name found.
510 %eSTR Print STR as an error message. STR is terminated by a newline.
511 Use this when inconsistent options are detected.
512 %nSTR Print STR as a notice. STR is terminated by a newline.
513 %x{OPTION} Accumulate an option for %X.
514 %X Output the accumulated linker options specified by compilations.
515 %Y Output the accumulated assembler options specified by compilations.
516 %Z Output the accumulated preprocessor options specified by compilations.
517 %a process ASM_SPEC as a spec.
518 This allows config.h to specify part of the spec for running as.
519 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
520 used here. This can be used to run a post-processor after the
521 assembler has done its job.
522 %D Dump out a -L option for each directory in startfile_prefixes.
523 If multilib_dir is set, extra entries are generated with it affixed.
524 %l process LINK_SPEC as a spec.
525 %L process LIB_SPEC as a spec.
526 %M Output multilib_os_dir.
527 %G process LIBGCC_SPEC as a spec.
528 %R Output the concatenation of target_system_root and
529 target_sysroot_suffix.
530 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
531 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
532 %C process CPP_SPEC as a spec.
533 %1 process CC1_SPEC as a spec.
534 %2 process CC1PLUS_SPEC as a spec.
535 %* substitute the variable part of a matched option. (See below.)
536 Note that each comma in the substituted string is replaced by
537 a single space. A space is appended after the last substition
538 unless there is more text in current sequence.
539 %<S remove all occurrences of -S from the command line.
540 Note - this command is position dependent. % commands in the
541 spec string before this one will see -S, % commands in the
542 spec string after this one will not.
543 %>S Similar to "%<S", but keep it in the GCC command line.
544 %<S* remove all occurrences of all switches beginning with -S from the
547 Call the named function FUNCTION, passing it ARGS. ARGS is
548 first processed as a nested spec string, then split into an
549 argument vector in the usual fashion. The function returns
550 a string which is processed as if it had appeared literally
551 as part of the current spec.
552 %{S} substitutes the -S switch, if that switch was given to GCC.
553 If that switch was not specified, this substitutes nothing.
554 Here S is a metasyntactic variable.
555 %{S*} substitutes all the switches specified to GCC whose names start
556 with -S. This is used for -o, -I, etc; switches that take
557 arguments. GCC considers `-o foo' as being one switch whose
558 name starts with `o'. %{o*} would substitute this text,
559 including the space; thus, two arguments would be generated.
560 %{S*&T*} likewise, but preserve order of S and T options (the order
561 of S and T in the spec is not significant). Can be any number
562 of ampersand-separated variables; for each the wild card is
563 optional. Useful for CPP as %{D*&U*&A*}.
565 %{S:X} substitutes X, if the -S switch was given to GCC.
566 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
567 %{S*:X} substitutes X if one or more switches whose names start
568 with -S was given to GCC. Normally X is substituted only
569 once, no matter how many such switches appeared. However,
570 if %* appears somewhere in X, then X will be substituted
571 once for each matching switch, with the %* replaced by the
572 part of that switch that matched the '*'. A space will be
573 appended after the last substition unless there is more
574 text in current sequence.
575 %{.S:X} substitutes X, if processing a file with suffix S.
576 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
577 %{,S:X} substitutes X, if processing a file which will use spec S.
578 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
580 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
581 combined with '!', '.', ',', and '*' as above binding stronger
583 If %* appears in X, all of the alternatives must be starred, and
584 only the first matching alternative is substituted.
585 %{%:function(args):X}
586 Call function named FUNCTION with args ARGS. If the function
587 returns non-NULL, then X is substituted, if it returns
588 NULL, it isn't substituted.
589 %{S:X; if S was given to GCC, substitutes X;
590 T:Y; else if T was given to GCC, substitutes Y;
591 :D} else substitutes D. There can be as many clauses as you need.
592 This may be combined with '.', '!', ',', '|', and '*' as above.
594 %(Spec) processes a specification defined in a specs file as *Spec:
596 The switch matching text S in a %{S}, %{S:X}, or similar construct can use
597 a backslash to ignore the special meaning of the character following it,
598 thus allowing literal matching of a character that is otherwise specially
599 treated. For example, %{std=iso9899\:1999:X} substitutes X if the
600 -std=iso9899:1999 option is given.
602 The conditional text X in a %{S:X} or similar construct may contain
603 other nested % constructs or spaces, or even newlines. They are
604 processed as usual, as described above. Trailing white space in X is
605 ignored. White space may also appear anywhere on the left side of the
606 colon in these constructs, except between . or * and the corresponding
609 The -O, -f, -g, -m, and -W switches are handled specifically in these
610 constructs. If another value of -O or the negated form of a -f, -m, or
611 -W switch is found later in the command line, the earlier switch
612 value is ignored, except with {S*} where S is just one letter; this
613 passes all matching options.
615 The character | at the beginning of the predicate text is used to indicate
616 that a command should be piped to the following command, but only if -pipe
619 Note that it is built into GCC which switches take arguments and which
620 do not. You might think it would be useful to generalize this to
621 allow each compiler's spec to say which switches take arguments. But
622 this cannot be done in a consistent fashion. GCC cannot even decide
623 which input files have been specified without knowing which switches
624 take arguments, and it must know which input files to compile in order
625 to tell which compilers to run.
627 GCC also knows implicitly that arguments starting in `-l' are to be
628 treated as compiler output files, and passed to the linker in their
629 proper position among the other output files. */
631 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
633 /* config.h can define ASM_SPEC to provide extra args to the assembler
634 or extra switch-translations. */
639 /* config.h can define ASM_FINAL_SPEC to run a post processor after
640 the assembler has run. */
641 #ifndef ASM_FINAL_SPEC
642 #define ASM_FINAL_SPEC \
644 objcopy --extract-dwo \
645 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
646 %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\
647 objcopy --strip-dwo \
648 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
652 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
653 or extra switch-translations. */
658 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
659 or extra switch-translations. */
664 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
665 or extra switch-translations. */
667 #define CC1PLUS_SPEC ""
670 /* config.h can define LINK_SPEC to provide extra args to the linker
671 or extra switch-translations. */
676 /* config.h can define LIB_SPEC to override the default libraries. */
678 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
681 /* When using -fsplit-stack we need to wrap pthread_create, in order
682 to initialize the stack guard. We always use wrapping, rather than
683 shared library ordering, and we keep the wrapper function in
684 libgcc. This is not yet a real spec, though it could become one;
685 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
686 only works with GNU ld and gold. */
687 #ifdef HAVE_GOLD_NON_DEFAULT_SPLIT_STACK
688 #define STACK_SPLIT_SPEC " %{fsplit-stack: -fuse-ld=gold --wrap=pthread_create}"
690 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
694 #define STATIC_LIBASAN_LIBS \
695 " %{static-libasan|static:%:include(libsanitizer.spec)%(link_libasan)}"
696 #ifdef LIBASAN_EARLY_SPEC
697 #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
698 #elif defined(HAVE_LD_STATIC_DYNAMIC)
699 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
700 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
703 #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
707 #ifndef LIBASAN_EARLY_SPEC
708 #define LIBASAN_EARLY_SPEC ""
712 #define STATIC_LIBTSAN_LIBS \
713 " %{static-libtsan|static:%:include(libsanitizer.spec)%(link_libtsan)}"
714 #ifdef LIBTSAN_EARLY_SPEC
715 #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
716 #elif defined(HAVE_LD_STATIC_DYNAMIC)
717 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
718 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
721 #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
725 #ifndef LIBTSAN_EARLY_SPEC
726 #define LIBTSAN_EARLY_SPEC ""
730 #define STATIC_LIBLSAN_LIBS \
731 " %{static-liblsan|static:%:include(libsanitizer.spec)%(link_liblsan)}"
732 #ifdef LIBLSAN_EARLY_SPEC
733 #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
734 #elif defined(HAVE_LD_STATIC_DYNAMIC)
735 #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
736 "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
739 #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
743 #ifndef LIBLSAN_EARLY_SPEC
744 #define LIBLSAN_EARLY_SPEC ""
747 #ifndef LIBUBSAN_SPEC
748 #define STATIC_LIBUBSAN_LIBS \
749 " %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}"
750 #ifdef HAVE_LD_STATIC_DYNAMIC
751 #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
752 "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
755 #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
759 /* Linker options for compressed debug sections. */
760 #if HAVE_LD_COMPRESS_DEBUG == 0
761 /* No linker support. */
762 #define LINK_COMPRESS_DEBUG_SPEC \
763 " %{gz*:%e-gz is not supported in this configuration} "
764 #elif HAVE_LD_COMPRESS_DEBUG == 1
765 /* GNU style on input, GNU ld options. Reject, not useful. */
766 #define LINK_COMPRESS_DEBUG_SPEC \
767 " %{gz*:%e-gz is not supported in this configuration} "
768 #elif HAVE_LD_COMPRESS_DEBUG == 2
769 /* GNU style, GNU gold options. */
770 #define LINK_COMPRESS_DEBUG_SPEC \
771 " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
772 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
773 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
774 #elif HAVE_LD_COMPRESS_DEBUG == 3
775 /* ELF gABI style. */
776 #define LINK_COMPRESS_DEBUG_SPEC \
777 " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
778 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
779 " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
781 #error Unknown value for HAVE_LD_COMPRESS_DEBUG.
784 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
787 #if defined(REAL_LIBGCC_SPEC)
788 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
789 #elif defined(LINK_LIBGCC_SPECIAL_1)
790 /* Have gcc do the search for libgcc.a. */
791 #define LIBGCC_SPEC "libgcc.a%s"
793 #define LIBGCC_SPEC "-lgcc"
797 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
798 #ifndef STARTFILE_SPEC
799 #define STARTFILE_SPEC \
800 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
803 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
805 #define ENDFILE_SPEC ""
809 #define LINKER_NAME "collect2"
812 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
813 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
818 /* Assembler options for compressed debug sections. */
819 #if HAVE_LD_COMPRESS_DEBUG < 2
820 /* Reject if the linker cannot write compressed debug sections. */
821 #define ASM_COMPRESS_DEBUG_SPEC \
822 " %{gz*:%e-gz is not supported in this configuration} "
823 #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */
824 #if HAVE_AS_COMPRESS_DEBUG == 0
825 /* No assembler support. Ignore silently. */
826 #define ASM_COMPRESS_DEBUG_SPEC \
828 #elif HAVE_AS_COMPRESS_DEBUG == 1
829 /* GNU style, GNU as options. */
830 #define ASM_COMPRESS_DEBUG_SPEC \
831 " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \
832 " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \
833 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
834 #elif HAVE_AS_COMPRESS_DEBUG == 2
835 /* ELF gABI style. */
836 #define ASM_COMPRESS_DEBUG_SPEC \
837 " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
838 " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
839 " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
841 #error Unknown value for HAVE_AS_COMPRESS_DEBUG.
843 #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */
845 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
847 #ifndef ASM_DEBUG_SPEC
848 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
849 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
850 # define ASM_DEBUG_SPEC \
851 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
852 ? "%{%:debug-level-gt(0):" \
853 "%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \
854 : "%{%:debug-level-gt(0):" \
855 "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
857 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
858 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gstabs}}" ASM_MAP
860 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
861 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gdwarf2}}" ASM_MAP
865 #ifndef ASM_DEBUG_SPEC
866 # define ASM_DEBUG_SPEC ""
869 /* Here is the spec for running the linker, after compiling all files. */
871 /* This is overridable by the target in case they need to specify the
872 -lgcc and -lc order specially, yet not require them to override all
873 of LINK_COMMAND_SPEC. */
874 #ifndef LINK_GCC_C_SEQUENCE_SPEC
875 #define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}"
878 #ifndef LINK_SSP_SPEC
879 #ifdef TARGET_LIBC_PROVIDES_SSP
880 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
881 "|fstack-protector-strong|fstack-protector-explicit:}"
883 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
884 "|fstack-protector-strong|fstack-protector-explicit" \
885 ":-lssp_nonshared -lssp}"
889 #ifdef ENABLE_DEFAULT_PIE
890 #define PIE_SPEC "!no-pie"
891 #define NO_FPIE1_SPEC "fno-pie"
892 #define FPIE1_SPEC NO_FPIE1_SPEC ":;"
893 #define NO_FPIE2_SPEC "fno-PIE"
894 #define FPIE2_SPEC NO_FPIE2_SPEC ":;"
895 #define NO_FPIE_SPEC NO_FPIE1_SPEC "|" NO_FPIE2_SPEC
896 #define FPIE_SPEC NO_FPIE_SPEC ":;"
897 #define NO_FPIC1_SPEC "fno-pic"
898 #define FPIC1_SPEC NO_FPIC1_SPEC ":;"
899 #define NO_FPIC2_SPEC "fno-PIC"
900 #define FPIC2_SPEC NO_FPIC2_SPEC ":;"
901 #define NO_FPIC_SPEC NO_FPIC1_SPEC "|" NO_FPIC2_SPEC
902 #define FPIC_SPEC NO_FPIC_SPEC ":;"
903 #define NO_FPIE1_AND_FPIC1_SPEC NO_FPIE1_SPEC "|" NO_FPIC1_SPEC
904 #define FPIE1_OR_FPIC1_SPEC NO_FPIE1_AND_FPIC1_SPEC ":;"
905 #define NO_FPIE2_AND_FPIC2_SPEC NO_FPIE2_SPEC "|" NO_FPIC2_SPEC
906 #define FPIE2_OR_FPIC2_SPEC NO_FPIE2_AND_FPIC2_SPEC ":;"
907 #define NO_FPIE_AND_FPIC_SPEC NO_FPIE_SPEC "|" NO_FPIC_SPEC
908 #define FPIE_OR_FPIC_SPEC NO_FPIE_AND_FPIC_SPEC ":;"
910 #define PIE_SPEC "pie"
911 #define FPIE1_SPEC "fpie"
912 #define NO_FPIE1_SPEC FPIE1_SPEC ":;"
913 #define FPIE2_SPEC "fPIE"
914 #define NO_FPIE2_SPEC FPIE2_SPEC ":;"
915 #define FPIE_SPEC FPIE1_SPEC "|" FPIE2_SPEC
916 #define NO_FPIE_SPEC FPIE_SPEC ":;"
917 #define FPIC1_SPEC "fpic"
918 #define NO_FPIC1_SPEC FPIC1_SPEC ":;"
919 #define FPIC2_SPEC "fPIC"
920 #define NO_FPIC2_SPEC FPIC2_SPEC ":;"
921 #define FPIC_SPEC FPIC1_SPEC "|" FPIC2_SPEC
922 #define NO_FPIC_SPEC FPIC_SPEC ":;"
923 #define FPIE1_OR_FPIC1_SPEC FPIE1_SPEC "|" FPIC1_SPEC
924 #define NO_FPIE1_AND_FPIC1_SPEC FPIE1_OR_FPIC1_SPEC ":;"
925 #define FPIE2_OR_FPIC2_SPEC FPIE2_SPEC "|" FPIC2_SPEC
926 #define NO_FPIE2_AND_FPIC2_SPEC FPIE1_OR_FPIC2_SPEC ":;"
927 #define FPIE_OR_FPIC_SPEC FPIE_SPEC "|" FPIC_SPEC
928 #define NO_FPIE_AND_FPIC_SPEC FPIE_OR_FPIC_SPEC ":;"
931 #ifndef LINK_PIE_SPEC
934 #define LD_PIE_SPEC "-pie"
937 #define LD_PIE_SPEC ""
939 #define LINK_PIE_SPEC "%{static|shared|r:;" PIE_SPEC ":" LD_PIE_SPEC "} "
942 #ifndef LINK_BUILDID_SPEC
943 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
944 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
948 /* Conditional to test whether the LTO plugin is used or not.
949 FIXME: For slim LTO we will need to enable plugin unconditionally. This
950 still cause problems with PLUGIN_LD != LD and when plugin is built but
951 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
952 plugin only when LTO is enabled. We still honor explicit
953 -fuse-linker-plugin if the linker used understands -plugin. */
955 /* The linker has some plugin support. */
956 #if HAVE_LTO_PLUGIN > 0
957 /* The linker used has full plugin support, use LTO plugin by default. */
958 #if HAVE_LTO_PLUGIN == 2
959 #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
960 #define PLUGIN_COND_CLOSE "}"
962 /* The linker used has limited plugin support, use LTO plugin with explicit
963 -fuse-linker-plugin. */
964 #define PLUGIN_COND "fuse-linker-plugin"
965 #define PLUGIN_COND_CLOSE ""
967 #define LINK_PLUGIN_SPEC \
969 -plugin %(linker_plugin_file) \
970 -plugin-opt=%(lto_wrapper) \
971 -plugin-opt=-fresolution=%u.res \
972 %{flinker-output=*:-plugin-opt=-linker-output-known} \
973 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
976 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
977 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
978 %e-fuse-linker-plugin is not supported in this configuration}"
981 /* Linker command line options for -fsanitize= early on the command line. */
982 #ifndef SANITIZER_EARLY_SPEC
983 #define SANITIZER_EARLY_SPEC "\
984 %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
985 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
986 %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}}"
989 /* Linker command line options for -fsanitize= late on the command line. */
990 #ifndef SANITIZER_SPEC
991 #define SANITIZER_SPEC "\
992 %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
993 %{static:%ecannot specify -static with -fsanitize=address}}\
994 %{%:sanitize(thread):" LIBTSAN_SPEC "\
995 %{static:%ecannot specify -static with -fsanitize=thread}}\
996 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
997 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}}"
1000 #ifndef POST_LINK_SPEC
1001 #define POST_LINK_SPEC ""
1004 /* This is the spec to use, once the code for creating the vtable
1005 verification runtime library, libvtv.so, has been created. Currently
1006 the vtable verification runtime functions are in libstdc++, so we use
1007 the spec just below this one. */
1008 #ifndef VTABLE_VERIFICATION_SPEC
1009 #if ENABLE_VTABLE_VERIFY
1010 #define VTABLE_VERIFICATION_SPEC "\
1011 %{!nostdlib:%{!r:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
1012 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}}"
1014 #define VTABLE_VERIFICATION_SPEC "\
1015 %{fvtable-verify=none:} \
1016 %{fvtable-verify=std: \
1017 %e-fvtable-verify=std is not supported in this configuration} \
1018 %{fvtable-verify=preinit: \
1019 %e-fvtable-verify=preinit is not supported in this configuration}"
1023 /* -u* was put back because both BSD and SysV seem to support it. */
1024 /* %{static|no-pie|static-pie:} simply prevents an error message:
1025 1. If the target machine doesn't handle -static.
1026 2. If PIE isn't enabled by default.
1027 3. If the target machine doesn't handle -static-pie.
1029 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
1030 scripts which exist in user specified directories, or in standard
1032 /* We pass any -flto flags on to the linker, which is expected
1033 to understand them. In practice, this means it had better be collect2. */
1034 /* %{e*} includes -export-dynamic; see comment in common.opt. */
1035 #ifndef LINK_COMMAND_SPEC
1036 #define LINK_COMMAND_SPEC "\
1037 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
1040 "%{flto|flto=*:%<fcompare-debug*} \
1041 %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
1042 "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
1043 "%X %{o*} %{e*} %{N} %{n} %{r}\
1044 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
1045 %{static|no-pie|static-pie:} %@{L*} %(mfwrap) %(link_libgcc) " \
1046 VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o "" \
1047 %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
1048 %:include(libgomp.spec)%(link_gomp)}\
1049 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
1050 %(mflib) " STACK_SPLIT_SPEC "\
1051 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
1052 %{!nostdlib:%{!r:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}}\
1053 %{!nostdlib:%{!r:%{!nostartfiles:%E}}} %{T*} \n%(post_link) }}}}}}"
1056 #ifndef LINK_LIBGCC_SPEC
1057 /* Generate -L options for startfile prefix list. */
1058 # define LINK_LIBGCC_SPEC "%D"
1061 #ifndef STARTFILE_PREFIX_SPEC
1062 # define STARTFILE_PREFIX_SPEC ""
1065 #ifndef SYSROOT_SPEC
1066 # define SYSROOT_SPEC "--sysroot=%R"
1069 #ifndef SYSROOT_SUFFIX_SPEC
1070 # define SYSROOT_SUFFIX_SPEC ""
1073 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
1074 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
1077 static const char *asm_debug
= ASM_DEBUG_SPEC
;
1078 static const char *cpp_spec
= CPP_SPEC
;
1079 static const char *cc1_spec
= CC1_SPEC
;
1080 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
1081 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
1082 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
1083 static const char *asm_spec
= ASM_SPEC
;
1084 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
1085 static const char *link_spec
= LINK_SPEC
;
1086 static const char *lib_spec
= LIB_SPEC
;
1087 static const char *link_gomp_spec
= "";
1088 static const char *libgcc_spec
= LIBGCC_SPEC
;
1089 static const char *endfile_spec
= ENDFILE_SPEC
;
1090 static const char *startfile_spec
= STARTFILE_SPEC
;
1091 static const char *linker_name_spec
= LINKER_NAME
;
1092 static const char *linker_plugin_file_spec
= "";
1093 static const char *lto_wrapper_spec
= "";
1094 static const char *lto_gcc_spec
= "";
1095 static const char *post_link_spec
= POST_LINK_SPEC
;
1096 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
1097 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
1098 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
1099 static const char *sysroot_spec
= SYSROOT_SPEC
;
1100 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
1101 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
1102 static const char *self_spec
= "";
1104 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
1105 There should be no need to override these in target dependent files,
1106 but we need to copy them to the specs file so that newer versions
1107 of the GCC driver can correctly drive older tool chains with the
1108 appropriate -B options. */
1110 /* When cpplib handles traditional preprocessing, get rid of this, and
1111 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
1112 that we default the front end language better. */
1113 static const char *trad_capable_cpp
=
1114 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
1116 /* We don't wrap .d files in %W{} since a missing .d file, and
1117 therefore no dependency entry, confuses make into thinking a .o
1118 file that happens to exist is up-to-date. */
1119 static const char *cpp_unique_options
=
1120 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %@{I*&F*} %{P} %I\
1121 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
1122 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
1123 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
1124 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
1125 %{remap} %{g3|ggdb3|gstabs3|gxcoff3|gvms3:-dD}\
1126 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1127 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
1130 /* This contains cpp options which are common with cc1_options and are passed
1131 only when preprocessing only to avoid duplication. We pass the cc1 spec
1132 options to the preprocessor so that it the cc1 spec may manipulate
1133 options used to set target flags. Those special target flags settings may
1134 in turn cause preprocessor symbols to be defined specially. */
1135 static const char *cpp_options
=
1136 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
1137 %{f*} %{g*:%{%:debug-level-gt(0):%{g*}\
1138 %{!fno-working-directory:-fworking-directory}}} %{O*}\
1139 %{undef} %{save-temps*:-fpch-preprocess}";
1141 /* This contains cpp options which are not passed when the preprocessor
1142 output will be used by another program. */
1143 static const char *cpp_debug_options
= "%{d*}";
1145 /* NB: This is shared amongst all front-ends, except for Ada. */
1146 static const char *cc1_options
=
1147 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
1148 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1149 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
1150 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
1151 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
1152 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
1153 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
1154 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
1155 %{-target-help:--target-help}\
1156 %{-version:--version}\
1157 %{-help=*:--help=%*}\
1158 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
1159 %{fsyntax-only:-o %j} %{-param*}\
1160 %{coverage:-fprofile-arcs -ftest-coverage}\
1161 %{fprofile-arcs|fprofile-generate*|coverage:\
1162 %{!fprofile-update=single:\
1163 %{pthread:-fprofile-update=prefer-atomic}}}";
1165 static const char *asm_options
=
1166 "%{-target-help:%:print-asm-header()} "
1168 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
1169 to the assembler equivalents. */
1170 "%{v} %{w:-W} %{I*} "
1172 ASM_COMPRESS_DEBUG_SPEC
1173 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
1175 static const char *invoke_as
=
1176 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1178 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1179 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
1183 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1184 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
1188 /* Some compilers have limits on line lengths, and the multilib_select
1189 and/or multilib_matches strings can be very long, so we build them at
1191 static struct obstack multilib_obstack
;
1192 static const char *multilib_select
;
1193 static const char *multilib_matches
;
1194 static const char *multilib_defaults
;
1195 static const char *multilib_exclusions
;
1196 static const char *multilib_reuse
;
1198 /* Check whether a particular argument is a default argument. */
1200 #ifndef MULTILIB_DEFAULTS
1201 #define MULTILIB_DEFAULTS { "" }
1204 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
1206 #ifndef DRIVER_SELF_SPECS
1207 #define DRIVER_SELF_SPECS ""
1210 /* Linking to libgomp implies pthreads. This is particularly important
1211 for targets that use different start files and suchlike. */
1212 #ifndef GOMP_SELF_SPECS
1213 #define GOMP_SELF_SPECS \
1214 "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \
1218 /* Likewise for -fgnu-tm. */
1219 #ifndef GTM_SELF_SPECS
1220 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1223 static const char *const driver_self_specs
[] = {
1224 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1225 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
1228 #ifndef OPTION_DEFAULT_SPECS
1229 #define OPTION_DEFAULT_SPECS { "", "" }
1238 static const struct default_spec
1239 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1243 struct user_specs
*next
;
1244 const char *filename
;
1247 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1250 /* Record the mapping from file suffixes for compilation specs. */
1254 const char *suffix
; /* Use this compiler for input files
1255 whose names end in this suffix. */
1257 const char *spec
; /* To use this compiler, run this spec. */
1259 const char *cpp_spec
; /* If non-NULL, substitute this spec
1260 for `%C', rather than the usual
1262 int combinable
; /* If nonzero, compiler can deal with
1263 multiple source files at once (IMA). */
1264 int needs_preprocessing
; /* If nonzero, source files need to
1265 be run through a preprocessor. */
1268 /* Pointer to a vector of `struct compiler' that gives the spec for
1269 compiling a file, based on its suffix.
1270 A file that does not end in any of these suffixes will be passed
1271 unchanged to the loader and nothing else will be done to it.
1273 An entry containing two 0s is used to terminate the vector.
1275 If multiple entries match a file, the last matching one is used. */
1277 static struct compiler
*compilers
;
1279 /* Number of entries in `compilers', not counting the null terminator. */
1281 static int n_compilers
;
1283 /* The default list of file name suffixes and their compilation specs. */
1285 static const struct compiler default_compilers
[] =
1287 /* Add lists of suffixes of known languages here. If those languages
1288 were not present when we built the driver, we will hit these copies
1289 and be given a more meaningful error than "file not used since
1290 linking is not done". */
1291 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1292 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1293 {".mii", "#Objective-C++", 0, 0, 0},
1294 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1295 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1296 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1297 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1298 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1299 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1300 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1301 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1302 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1303 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1304 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1305 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1306 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1307 {".r", "#Ratfor", 0, 0, 0},
1308 {".go", "#Go", 0, 1, 0},
1309 {".d", "#D", 0, 1, 0}, {".dd", "#D", 0, 1, 0}, {".di", "#D", 0, 1, 0},
1310 /* Next come the entries for C. */
1311 {".c", "@c", 0, 0, 1},
1313 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1314 external preprocessor if -save-temps is given. */
1315 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1318 %eGNU C no longer supports -traditional without -E}\
1319 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1320 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1321 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1323 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1324 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1325 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1327 "%{!E:%e-E or -x required when input is from standard input}\
1328 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1329 {".h", "@c-header", 0, 0, 0},
1331 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1332 external preprocessor if -save-temps is given. */
1333 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1335 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1336 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1337 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1339 %{!fsyntax-only:%{!S:-o %g.s} \
1340 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1341 %W{o*:--output-pch=%*}}%V}}\
1342 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1343 cc1 %(cpp_unique_options) %(cc1_options)\
1344 %{!fsyntax-only:%{!S:-o %g.s} \
1345 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1346 %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
1347 {".i", "@cpp-output", 0, 0, 0},
1349 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1350 {".s", "@assembler", 0, 0, 0},
1352 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1353 {".sx", "@assembler-with-cpp", 0, 0, 0},
1354 {".S", "@assembler-with-cpp", 0, 0, 0},
1355 {"@assembler-with-cpp",
1356 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1357 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1358 %{E|M|MM:%(cpp_debug_options)}\
1359 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1360 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1362 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1363 %{E|M|MM:%(cpp_debug_options)}\
1364 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1365 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1370 /* Mark end of table. */
1374 /* Number of elements in default_compilers, not counting the terminator. */
1376 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1378 typedef char *char_p
; /* For DEF_VEC_P. */
1380 /* A vector of options to give to the linker.
1381 These options are accumulated by %x,
1382 and substituted into the linker command with %X. */
1383 static vec
<char_p
> linker_options
;
1385 /* A vector of options to give to the assembler.
1386 These options are accumulated by -Wa,
1387 and substituted into the assembler command with %Y. */
1388 static vec
<char_p
> assembler_options
;
1390 /* A vector of options to give to the preprocessor.
1391 These options are accumulated by -Wp,
1392 and substituted into the preprocessor command with %Z. */
1393 static vec
<char_p
> preprocessor_options
;
1396 skip_whitespace (char *p
)
1400 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1401 be considered whitespace. */
1402 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1404 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1418 /* Structures to keep track of prefixes to try when looking for files. */
1422 const char *prefix
; /* String to prepend to the path. */
1423 struct prefix_list
*next
; /* Next in linked list. */
1424 int require_machine_suffix
; /* Don't use without machine_suffix. */
1425 /* 2 means try both machine_suffix and just_machine_suffix. */
1426 int priority
; /* Sort key - priority within list. */
1427 int os_multilib
; /* 1 if OS multilib scheme should be used,
1428 0 for GCC multilib scheme. */
1433 struct prefix_list
*plist
; /* List of prefixes to try */
1434 int max_len
; /* Max length of a prefix in PLIST */
1435 const char *name
; /* Name of this list (used in config stuff) */
1438 /* List of prefixes to try when looking for executables. */
1440 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1442 /* List of prefixes to try when looking for startup (crt0) files. */
1444 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1446 /* List of prefixes to try when looking for include files. */
1448 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1450 /* Suffix to attach to directories searched for commands.
1451 This looks like `MACHINE/VERSION/'. */
1453 static const char *machine_suffix
= 0;
1455 /* Suffix to attach to directories searched for commands.
1456 This is just `MACHINE/'. */
1458 static const char *just_machine_suffix
= 0;
1460 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1462 static const char *gcc_exec_prefix
;
1464 /* Adjusted value of standard_libexec_prefix. */
1466 static const char *gcc_libexec_prefix
;
1468 /* Default prefixes to attach to command names. */
1470 #ifndef STANDARD_STARTFILE_PREFIX_1
1471 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1473 #ifndef STANDARD_STARTFILE_PREFIX_2
1474 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1477 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1478 #undef MD_EXEC_PREFIX
1479 #undef MD_STARTFILE_PREFIX
1480 #undef MD_STARTFILE_PREFIX_1
1483 /* If no prefixes defined, use the null string, which will disable them. */
1484 #ifndef MD_EXEC_PREFIX
1485 #define MD_EXEC_PREFIX ""
1487 #ifndef MD_STARTFILE_PREFIX
1488 #define MD_STARTFILE_PREFIX ""
1490 #ifndef MD_STARTFILE_PREFIX_1
1491 #define MD_STARTFILE_PREFIX_1 ""
1494 /* These directories are locations set at configure-time based on the
1495 --prefix option provided to configure. Their initializers are
1496 defined in Makefile.in. These paths are not *directly* used when
1497 gcc_exec_prefix is set because, in that case, we know where the
1498 compiler has been installed, and use paths relative to that
1499 location instead. */
1500 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1501 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1502 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1503 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1505 /* For native compilers, these are well-known paths containing
1506 components that may be provided by the system. For cross
1507 compilers, these paths are not used. */
1508 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1509 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1510 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1511 static const char *const standard_startfile_prefix_1
1512 = STANDARD_STARTFILE_PREFIX_1
;
1513 static const char *const standard_startfile_prefix_2
1514 = STANDARD_STARTFILE_PREFIX_2
;
1516 /* A relative path to be used in finding the location of tools
1517 relative to the driver. */
1518 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1520 /* A prefix to be used when this is an accelerator compiler. */
1521 static const char *const accel_dir_suffix
= ACCEL_DIR_SUFFIX
;
1523 /* Subdirectory to use for locating libraries. Set by
1524 set_multilib_dir based on the compilation options. */
1526 static const char *multilib_dir
;
1528 /* Subdirectory to use for locating libraries in OS conventions. Set by
1529 set_multilib_dir based on the compilation options. */
1531 static const char *multilib_os_dir
;
1533 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1534 set_multilib_dir based on the compilation options. */
1536 static const char *multiarch_dir
;
1538 /* Structure to keep track of the specs that have been defined so far.
1539 These are accessed using %(specname) in a compiler or link
1544 /* The following 2 fields must be first */
1545 /* to allow EXTRA_SPECS to be initialized */
1546 const char *name
; /* name of the spec. */
1547 const char *ptr
; /* available ptr if no static pointer */
1549 /* The following fields are not initialized */
1550 /* by EXTRA_SPECS */
1551 const char **ptr_spec
; /* pointer to the spec itself. */
1552 struct spec_list
*next
; /* Next spec in linked list. */
1553 int name_len
; /* length of the name */
1554 bool user_p
; /* whether string come from file spec. */
1555 bool alloc_p
; /* whether string was allocated */
1556 const char *default_ptr
; /* The default value of *ptr_spec. */
1559 #define INIT_STATIC_SPEC(NAME,PTR) \
1560 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false, \
1563 /* List of statically defined specs. */
1564 static struct spec_list static_specs
[] =
1566 INIT_STATIC_SPEC ("asm", &asm_spec
),
1567 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1568 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1569 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1570 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1571 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1572 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1573 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1574 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1575 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1576 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1577 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1578 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1579 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1580 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1581 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1582 INIT_STATIC_SPEC ("link", &link_spec
),
1583 INIT_STATIC_SPEC ("lib", &lib_spec
),
1584 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1585 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1586 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1587 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1588 INIT_STATIC_SPEC ("version", &compiler_version
),
1589 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1590 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1591 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1592 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1593 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1594 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1595 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1596 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1597 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1598 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1599 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1600 INIT_STATIC_SPEC ("post_link", &post_link_spec
),
1601 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1602 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1603 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1604 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1605 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1606 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1607 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1608 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1609 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1612 #ifdef EXTRA_SPECS /* additional specs needed */
1613 /* Structure to keep track of just the first two args of a spec_list.
1614 That is all that the EXTRA_SPECS macro gives us. */
1617 const char *const name
;
1618 const char *const ptr
;
1621 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1622 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1625 /* List of dynamically allocates specs that have been defined so far. */
1627 static struct spec_list
*specs
= (struct spec_list
*) 0;
1629 /* List of static spec functions. */
1631 static const struct spec_function static_spec_functions
[] =
1633 { "getenv", getenv_spec_function
},
1634 { "if-exists", if_exists_spec_function
},
1635 { "if-exists-else", if_exists_else_spec_function
},
1636 { "sanitize", sanitize_spec_function
},
1637 { "replace-outfile", replace_outfile_spec_function
},
1638 { "remove-outfile", remove_outfile_spec_function
},
1639 { "version-compare", version_compare_spec_function
},
1640 { "include", include_spec_function
},
1641 { "find-file", find_file_spec_function
},
1642 { "find-plugindir", find_plugindir_spec_function
},
1643 { "print-asm-header", print_asm_header_spec_function
},
1644 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1645 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1646 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1647 { "pass-through-libs", pass_through_libs_spec_func
},
1648 { "replace-extension", replace_extension_spec_func
},
1649 { "gt", greater_than_spec_func
},
1650 { "debug-level-gt", debug_level_greater_than_spec_func
},
1651 { "fortran-preinclude-file", find_fortran_preinclude_file
},
1652 #ifdef EXTRA_SPEC_FUNCTIONS
1653 EXTRA_SPEC_FUNCTIONS
1658 static int processing_spec_function
;
1660 /* Add appropriate libgcc specs to OBSTACK, taking into account
1661 various permutations of -shared-libgcc, -shared, and such. */
1663 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1665 #ifndef USE_LD_AS_NEEDED
1666 #define USE_LD_AS_NEEDED 0
1670 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1671 const char *static_name
, const char *eh_name
)
1675 #if USE_LD_AS_NEEDED
1676 buf
= concat ("%{static|static-libgcc|static-pie:", static_name
, " ", eh_name
, "}"
1677 "%{!static:%{!static-libgcc:%{!static-pie:"
1678 "%{!shared-libgcc:",
1679 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1680 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1683 shared_name
, "%{!shared: ", static_name
, "}"
1686 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1687 "%{!static:%{!static-libgcc:"
1689 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1690 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1694 "%{shared-libgcc:", shared_name
, "}"
1695 "%{!shared-libgcc:", static_name
, "}"
1698 "%{shared:", shared_name
, "}"
1703 obstack_grow (obstack
, buf
, strlen (buf
));
1706 #endif /* ENABLE_SHARED_LIBGCC */
1708 /* Initialize the specs lookup routines. */
1713 struct spec_list
*next
= (struct spec_list
*) 0;
1714 struct spec_list
*sl
= (struct spec_list
*) 0;
1718 return; /* Already initialized. */
1721 fnotice (stderr
, "Using built-in specs.\n");
1724 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1726 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1728 sl
= &extra_specs
[i
];
1729 sl
->name
= extra_specs_1
[i
].name
;
1730 sl
->ptr
= extra_specs_1
[i
].ptr
;
1732 sl
->name_len
= strlen (sl
->name
);
1733 sl
->ptr_spec
= &sl
->ptr
;
1734 gcc_assert (sl
->ptr_spec
!= NULL
);
1735 sl
->default_ptr
= sl
->ptr
;
1740 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1742 sl
= &static_specs
[i
];
1747 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1748 /* ??? If neither -shared-libgcc nor --static-libgcc was
1749 seen, then we should be making an educated guess. Some proposed
1750 heuristics for ELF include:
1752 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1753 program will be doing dynamic loading, which will likely
1754 need the shared libgcc.
1756 (2) If "-ldl", then it's also a fair bet that we're doing
1759 (3) For each ET_DYN we're linking against (either through -lfoo
1760 or /some/path/foo.so), check to see whether it or one of
1761 its dependencies depends on a shared libgcc.
1765 If the runtime is fixed to look for program headers instead
1766 of calling __register_frame_info at all, for each object,
1767 use the shared libgcc if any EH symbol referenced.
1769 If crtstuff is fixed to not invoke __register_frame_info
1770 automatically, for each object, use the shared libgcc if
1771 any non-empty unwind section found.
1773 Doing any of this probably requires invoking an external program to
1774 do the actual object file scanning. */
1776 const char *p
= libgcc_spec
;
1779 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1780 when given the proper command line arguments. */
1783 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1785 init_gcc_specs (&obstack
,
1787 #ifdef USE_LIBUNWIND_EXCEPTIONS
1793 #ifdef USE_LIBUNWIND_EXCEPTIONS
1794 # ifdef HAVE_LD_STATIC_DYNAMIC
1795 " %{!static:%{!static-pie:" LD_STATIC_OPTION
"}} -lunwind"
1796 " %{!static:%{!static-pie:" LD_DYNAMIC_OPTION
"}}"
1806 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1808 /* Ug. We don't know shared library extensions. Hope that
1809 systems that use this form don't do shared libraries. */
1810 init_gcc_specs (&obstack
,
1814 #ifdef USE_LIBUNWIND_EXCEPTIONS
1823 obstack_1grow (&obstack
, *p
);
1824 in_sep
= (*p
== ' ');
1829 obstack_1grow (&obstack
, '\0');
1830 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1833 #ifdef USE_AS_TRADITIONAL_FORMAT
1834 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1836 static const char tf
[] = "--traditional-format ";
1837 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1838 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1839 asm_spec
= XOBFINISH (&obstack
, const char *);
1843 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1844 defined LINKER_HASH_STYLE
1845 # ifdef LINK_BUILDID_SPEC
1846 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1847 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1849 # ifdef LINK_EH_SPEC
1850 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1851 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1853 # ifdef LINKER_HASH_STYLE
1854 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1857 static const char hash_style
[] = "--hash-style=";
1858 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1859 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1860 obstack_1grow (&obstack
, ' ');
1863 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1864 link_spec
= XOBFINISH (&obstack
, const char *);
1870 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1871 removed; If the spec starts with a + then SPEC is added to the end of the
1875 set_spec (const char *name
, const char *spec
, bool user_p
)
1877 struct spec_list
*sl
;
1878 const char *old_spec
;
1879 int name_len
= strlen (name
);
1882 /* If this is the first call, initialize the statically allocated specs. */
1885 struct spec_list
*next
= (struct spec_list
*) 0;
1886 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1888 sl
= &static_specs
[i
];
1895 /* See if the spec already exists. */
1896 for (sl
= specs
; sl
; sl
= sl
->next
)
1897 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1902 /* Not found - make it. */
1903 sl
= XNEW (struct spec_list
);
1904 sl
->name
= xstrdup (name
);
1905 sl
->name_len
= name_len
;
1906 sl
->ptr_spec
= &sl
->ptr
;
1908 *(sl
->ptr_spec
) = "";
1910 sl
->default_ptr
= NULL
;
1914 old_spec
= *(sl
->ptr_spec
);
1915 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1916 ? concat (old_spec
, spec
+ 1, NULL
)
1921 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1924 /* Free the old spec. */
1925 if (old_spec
&& sl
->alloc_p
)
1926 free (CONST_CAST (char *, old_spec
));
1928 sl
->user_p
= user_p
;
1932 /* Accumulate a command (program name and args), and run it. */
1934 typedef const char *const_char_p
; /* For DEF_VEC_P. */
1936 /* Vector of pointers to arguments in the current line of specifications. */
1937 static vec
<const_char_p
> argbuf
;
1939 /* Likewise, but for the current @file. */
1940 static vec
<const_char_p
> at_file_argbuf
;
1942 /* Whether an @file is currently open. */
1943 static bool in_at_file
= false;
1945 /* Were the options -c, -S or -E passed. */
1946 static int have_c
= 0;
1948 /* Was the option -o passed. */
1949 static int have_o
= 0;
1951 /* Was the option -E passed. */
1952 static int have_E
= 0;
1954 /* Pointer to output file name passed in with -o. */
1955 static const char *output_file
= 0;
1957 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1958 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1961 static struct temp_name
{
1962 const char *suffix
; /* suffix associated with the code. */
1963 int length
; /* strlen (suffix). */
1964 int unique
; /* Indicates whether %g or %u/%U was used. */
1965 const char *filename
; /* associated filename. */
1966 int filename_length
; /* strlen (filename). */
1967 struct temp_name
*next
;
1970 /* Number of commands executed so far. */
1972 static int execution_count
;
1974 /* Number of commands that exited with a signal. */
1976 static int signal_count
;
1978 /* Allocate the argument vector. */
1984 at_file_argbuf
.create (10);
1987 /* Clear out the vector of arguments (after a command is executed). */
1992 argbuf
.truncate (0);
1993 at_file_argbuf
.truncate (0);
1996 /* Add one argument to the vector at the end.
1997 This is done when a space is seen or at the end of the line.
1998 If DELETE_ALWAYS is nonzero, the arg is a filename
1999 and the file should be deleted eventually.
2000 If DELETE_FAILURE is nonzero, the arg is a filename
2001 and the file should be deleted if this compilation fails. */
2004 store_arg (const char *arg
, int delete_always
, int delete_failure
)
2007 at_file_argbuf
.safe_push (arg
);
2009 argbuf
.safe_push (arg
);
2011 if (delete_always
|| delete_failure
)
2014 /* If the temporary file we should delete is specified as
2015 part of a joined argument extract the filename. */
2017 && (p
= strrchr (arg
, '=')))
2019 record_temp_file (arg
, delete_always
, delete_failure
);
2023 /* Open a temporary @file into which subsequent arguments will be stored. */
2029 fatal_error (input_location
, "cannot open nested response file");
2034 /* Close the temporary @file and add @file to the argument list. */
2037 close_at_file (void)
2040 fatal_error (input_location
, "cannot close nonexistent response file");
2044 const unsigned int n_args
= at_file_argbuf
.length ();
2048 char **argv
= (char **) alloca (sizeof (char *) * (n_args
+ 1));
2049 char *temp_file
= make_temp_file ("");
2050 char *at_argument
= concat ("@", temp_file
, NULL
);
2051 FILE *f
= fopen (temp_file
, "w");
2055 /* Copy the strings over. */
2056 for (i
= 0; i
< n_args
; i
++)
2057 argv
[i
] = CONST_CAST (char *, at_file_argbuf
[i
]);
2060 at_file_argbuf
.truncate (0);
2063 fatal_error (input_location
, "could not open temporary response file %s",
2066 status
= writeargv (argv
, f
);
2069 fatal_error (input_location
,
2070 "could not write to temporary response file %s",
2073 status
= fclose (f
);
2076 fatal_error (input_location
, "could not close temporary response file %s",
2079 store_arg (at_argument
, 0, 0);
2081 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
2084 /* Load specs from a file name named FILENAME, replacing occurrences of
2085 various different types of line-endings, \r\n, \n\r and just \r, with
2089 load_specs (const char *filename
)
2093 struct stat statbuf
;
2100 fnotice (stderr
, "Reading specs from %s\n", filename
);
2102 /* Open and stat the file. */
2103 desc
= open (filename
, O_RDONLY
, 0);
2107 /* This leaves DESC open, but the OS will save us. */
2108 fatal_error (input_location
, "cannot read spec file %qs: %m", filename
);
2111 if (stat (filename
, &statbuf
) < 0)
2114 /* Read contents of file into BUFFER. */
2115 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2116 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2119 buffer
[readlen
] = 0;
2122 specs
= XNEWVEC (char, readlen
+ 1);
2124 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2130 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2132 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2146 /* Read compilation specs from a file named FILENAME,
2147 replacing the default ones.
2149 A suffix which starts with `*' is a definition for
2150 one of the machine-specific sub-specs. The "suffix" should be
2151 *asm, *cc1, *cpp, *link, *startfile, etc.
2152 The corresponding spec is stored in asm_spec, etc.,
2153 rather than in the `compilers' vector.
2155 Anything invalid in the file is a fatal error. */
2158 read_specs (const char *filename
, bool main_p
, bool user_p
)
2163 buffer
= load_specs (filename
);
2165 /* Scan BUFFER for specs, putting them in the vector. */
2171 char *in
, *out
, *p1
, *p2
, *p3
;
2173 /* Advance P in BUFFER to the next nonblank nocomment line. */
2174 p
= skip_whitespace (p
);
2178 /* Is this a special command that starts with '%'? */
2179 /* Don't allow this for the main specs file, since it would
2180 encourage people to overwrite it. */
2181 if (*p
== '%' && !main_p
)
2184 while (*p
&& *p
!= '\n')
2190 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2191 && (p1
[sizeof "%include" - 1] == ' '
2192 || p1
[sizeof "%include" - 1] == '\t'))
2196 p1
+= sizeof ("%include");
2197 while (*p1
== ' ' || *p1
== '\t')
2200 if (*p1
++ != '<' || p
[-2] != '>')
2201 fatal_error (input_location
,
2202 "specs %%include syntax malformed after "
2204 (long) (p1
- buffer
+ 1));
2207 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2208 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
2211 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2212 && (p1
[sizeof "%include_noerr" - 1] == ' '
2213 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2217 p1
+= sizeof "%include_noerr";
2218 while (*p1
== ' ' || *p1
== '\t')
2221 if (*p1
++ != '<' || p
[-2] != '>')
2222 fatal_error (input_location
,
2223 "specs %%include syntax malformed after "
2225 (long) (p1
- buffer
+ 1));
2228 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2230 read_specs (new_filename
, false, user_p
);
2231 else if (verbose_flag
)
2232 fnotice (stderr
, "could not find specs file %s\n", p1
);
2235 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2236 && (p1
[sizeof "%rename" - 1] == ' '
2237 || p1
[sizeof "%rename" - 1] == '\t'))
2240 struct spec_list
*sl
;
2241 struct spec_list
*newsl
;
2243 /* Get original name. */
2244 p1
+= sizeof "%rename";
2245 while (*p1
== ' ' || *p1
== '\t')
2248 if (! ISALPHA ((unsigned char) *p1
))
2249 fatal_error (input_location
,
2250 "specs %%rename syntax malformed after "
2252 (long) (p1
- buffer
));
2255 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2258 if (*p2
!= ' ' && *p2
!= '\t')
2259 fatal_error (input_location
,
2260 "specs %%rename syntax malformed after "
2262 (long) (p2
- buffer
));
2266 while (*p2
== ' ' || *p2
== '\t')
2269 if (! ISALPHA ((unsigned char) *p2
))
2270 fatal_error (input_location
,
2271 "specs %%rename syntax malformed after "
2273 (long) (p2
- buffer
));
2275 /* Get new spec name. */
2277 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2281 fatal_error (input_location
,
2282 "specs %%rename syntax malformed after "
2284 (long) (p3
- buffer
));
2287 for (sl
= specs
; sl
; sl
= sl
->next
)
2288 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2292 fatal_error (input_location
,
2293 "specs %s spec was not found to be renamed", p1
);
2295 if (strcmp (p1
, p2
) == 0)
2298 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2299 if (strcmp (newsl
->name
, p2
) == 0)
2300 fatal_error (input_location
,
2301 "%s: attempt to rename spec %qs to "
2302 "already defined spec %qs",
2307 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
2309 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2313 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2315 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2317 *(sl
->ptr_spec
) = "";
2322 fatal_error (input_location
,
2323 "specs unknown %% command after %ld characters",
2324 (long) (p1
- buffer
));
2327 /* Find the colon that should end the suffix. */
2329 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2332 /* The colon shouldn't be missing. */
2334 fatal_error (input_location
,
2335 "specs file malformed after %ld characters",
2336 (long) (p1
- buffer
));
2338 /* Skip back over trailing whitespace. */
2340 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2343 /* Copy the suffix to a string. */
2344 suffix
= save_string (p
, p2
- p
);
2345 /* Find the next line. */
2346 p
= skip_whitespace (p1
+ 1);
2348 fatal_error (input_location
,
2349 "specs file malformed after %ld characters",
2350 (long) (p
- buffer
));
2353 /* Find next blank line or end of string. */
2354 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2357 /* Specs end at the blank line and do not include the newline. */
2358 spec
= save_string (p
, p1
- p
);
2361 /* Delete backslash-newline sequences from the spec. */
2366 if (in
[0] == '\\' && in
[1] == '\n')
2368 else if (in
[0] == '#')
2369 while (*in
&& *in
!= '\n')
2377 if (suffix
[0] == '*')
2379 if (! strcmp (suffix
, "*link_command"))
2380 link_command_spec
= spec
;
2383 set_spec (suffix
+ 1, spec
, user_p
);
2389 /* Add this pair to the vector. */
2391 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2393 compilers
[n_compilers
].suffix
= suffix
;
2394 compilers
[n_compilers
].spec
= spec
;
2396 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2400 link_command_spec
= spec
;
2403 if (link_command_spec
== 0)
2404 fatal_error (input_location
, "spec file has no spec for linking");
2406 XDELETEVEC (buffer
);
2409 /* Record the names of temporary files we tell compilers to write,
2410 and delete them at the end of the run. */
2412 /* This is the common prefix we use to make temp file names.
2413 It is chosen once for each run of this program.
2414 It is substituted into a spec by %g or %j.
2415 Thus, all temp file names contain this prefix.
2416 In practice, all temp file names start with this prefix.
2418 This prefix comes from the envvar TMPDIR if it is defined;
2419 otherwise, from the P_tmpdir macro if that is defined;
2420 otherwise, in /usr/tmp or /tmp;
2421 or finally the current directory if all else fails. */
2423 static const char *temp_filename
;
2425 /* Length of the prefix. */
2427 static int temp_filename_length
;
2429 /* Define the list of temporary files to delete. */
2434 struct temp_file
*next
;
2437 /* Queue of files to delete on success or failure of compilation. */
2438 static struct temp_file
*always_delete_queue
;
2439 /* Queue of files to delete on failure of compilation. */
2440 static struct temp_file
*failure_delete_queue
;
2442 /* Record FILENAME as a file to be deleted automatically.
2443 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2444 otherwise delete it in any case.
2445 FAIL_DELETE nonzero means delete it if a compilation step fails;
2446 otherwise delete it in any case. */
2449 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2451 char *const name
= xstrdup (filename
);
2455 struct temp_file
*temp
;
2456 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2457 if (! filename_cmp (name
, temp
->name
))
2463 temp
= XNEW (struct temp_file
);
2464 temp
->next
= always_delete_queue
;
2466 always_delete_queue
= temp
;
2473 struct temp_file
*temp
;
2474 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2475 if (! filename_cmp (name
, temp
->name
))
2481 temp
= XNEW (struct temp_file
);
2482 temp
->next
= failure_delete_queue
;
2484 failure_delete_queue
= temp
;
2490 /* Delete all the temporary files whose names we previously recorded. */
2492 #ifndef DELETE_IF_ORDINARY
2493 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2496 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2497 if (unlink (NAME) < 0) \
2499 error ("%s: %m", (NAME)); \
2504 delete_if_ordinary (const char *name
)
2510 printf ("Delete %s? (y or n) ", name
);
2514 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2517 if (i
== 'y' || i
== 'Y')
2519 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2523 delete_temp_files (void)
2525 struct temp_file
*temp
;
2527 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2528 delete_if_ordinary (temp
->name
);
2529 always_delete_queue
= 0;
2532 /* Delete all the files to be deleted on error. */
2535 delete_failure_queue (void)
2537 struct temp_file
*temp
;
2539 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2540 delete_if_ordinary (temp
->name
);
2544 clear_failure_queue (void)
2546 failure_delete_queue
= 0;
2549 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2551 If DO_MULTI is true iterate over the paths twice, first with multilib
2552 suffix then without, otherwise iterate over the paths once without
2553 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2554 to avoid visiting the same path twice, but we could do better. For
2555 instance, /usr/lib/../lib is considered different from /usr/lib.
2556 At least EXTRA_SPACE chars past the end of the path passed to
2557 CALLBACK are available for use by the callback.
2558 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2560 Returns the value returned by CALLBACK. */
2563 for_each_path (const struct path_prefix
*paths
,
2566 void *(*callback
) (char *, void *),
2567 void *callback_info
)
2569 struct prefix_list
*pl
;
2570 const char *multi_dir
= NULL
;
2571 const char *multi_os_dir
= NULL
;
2572 const char *multiarch_suffix
= NULL
;
2573 const char *multi_suffix
;
2574 const char *just_multi_suffix
;
2577 bool skip_multi_dir
= false;
2578 bool skip_multi_os_dir
= false;
2580 multi_suffix
= machine_suffix
;
2581 just_multi_suffix
= just_machine_suffix
;
2582 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2584 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2585 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2586 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2588 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2589 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2591 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2595 size_t multi_dir_len
= 0;
2596 size_t multi_os_dir_len
= 0;
2597 size_t multiarch_len
= 0;
2599 size_t just_suffix_len
;
2603 multi_dir_len
= strlen (multi_dir
);
2605 multi_os_dir_len
= strlen (multi_os_dir
);
2606 if (multiarch_suffix
)
2607 multiarch_len
= strlen (multiarch_suffix
);
2608 suffix_len
= strlen (multi_suffix
);
2609 just_suffix_len
= strlen (just_multi_suffix
);
2613 len
= paths
->max_len
+ extra_space
+ 1;
2614 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2615 path
= XNEWVEC (char, len
);
2618 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2620 len
= strlen (pl
->prefix
);
2621 memcpy (path
, pl
->prefix
, len
);
2623 /* Look first in MACHINE/VERSION subdirectory. */
2624 if (!skip_multi_dir
)
2626 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2627 ret
= callback (path
, callback_info
);
2632 /* Some paths are tried with just the machine (ie. target)
2633 subdir. This is used for finding as, ld, etc. */
2635 && pl
->require_machine_suffix
== 2)
2637 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2638 ret
= callback (path
, callback_info
);
2643 /* Now try the multiarch path. */
2645 && !pl
->require_machine_suffix
&& multiarch_dir
)
2647 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2648 ret
= callback (path
, callback_info
);
2653 /* Now try the base path. */
2654 if (!pl
->require_machine_suffix
2655 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2657 const char *this_multi
;
2658 size_t this_multi_len
;
2660 if (pl
->os_multilib
)
2662 this_multi
= multi_os_dir
;
2663 this_multi_len
= multi_os_dir_len
;
2667 this_multi
= multi_dir
;
2668 this_multi_len
= multi_dir_len
;
2672 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2676 ret
= callback (path
, callback_info
);
2684 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2687 /* Run through the paths again, this time without multilibs.
2688 Don't repeat any we have already seen. */
2691 free (CONST_CAST (char *, multi_dir
));
2693 free (CONST_CAST (char *, multi_suffix
));
2694 multi_suffix
= machine_suffix
;
2695 free (CONST_CAST (char *, just_multi_suffix
));
2696 just_multi_suffix
= just_machine_suffix
;
2699 skip_multi_dir
= true;
2702 free (CONST_CAST (char *, multi_os_dir
));
2703 multi_os_dir
= NULL
;
2706 skip_multi_os_dir
= true;
2711 free (CONST_CAST (char *, multi_dir
));
2712 free (CONST_CAST (char *, multi_suffix
));
2713 free (CONST_CAST (char *, just_multi_suffix
));
2716 free (CONST_CAST (char *, multi_os_dir
));
2722 /* Callback for build_search_list. Adds path to obstack being built. */
2724 struct add_to_obstack_info
{
2731 add_to_obstack (char *path
, void *data
)
2733 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2735 if (info
->check_dir
&& !is_directory (path
, false))
2738 if (!info
->first_time
)
2739 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2741 obstack_grow (info
->ob
, path
, strlen (path
));
2743 info
->first_time
= false;
2747 /* Add or change the value of an environment variable, outputting the
2748 change to standard error if in verbose mode. */
2750 xputenv (const char *string
)
2755 /* Build a list of search directories from PATHS.
2756 PREFIX is a string to prepend to the list.
2757 If CHECK_DIR_P is true we ensure the directory exists.
2758 If DO_MULTI is true, multilib paths are output first, then
2760 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2761 It is also used by the --print-search-dirs flag. */
2764 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2765 bool check_dir
, bool do_multi
)
2767 struct add_to_obstack_info info
;
2769 info
.ob
= &collect_obstack
;
2770 info
.check_dir
= check_dir
;
2771 info
.first_time
= true;
2773 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2774 obstack_1grow (&collect_obstack
, '=');
2776 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2778 obstack_1grow (&collect_obstack
, '\0');
2779 return XOBFINISH (&collect_obstack
, char *);
2782 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2786 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2789 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2792 /* Check whether NAME can be accessed in MODE. This is like access,
2793 except that it never considers directories to be executable. */
2796 access_check (const char *name
, int mode
)
2802 if (stat (name
, &st
) < 0
2803 || S_ISDIR (st
.st_mode
))
2807 return access (name
, mode
);
2810 /* Callback for find_a_file. Appends the file name to the directory
2811 path. If the resulting file exists in the right mode, return the
2812 full pathname to the file. */
2814 struct file_at_path_info
{
2823 file_at_path (char *path
, void *data
)
2825 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2826 size_t len
= strlen (path
);
2828 memcpy (path
+ len
, info
->name
, info
->name_len
);
2829 len
+= info
->name_len
;
2831 /* Some systems have a suffix for executable files.
2832 So try appending that first. */
2833 if (info
->suffix_len
)
2835 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2836 if (access_check (path
, info
->mode
) == 0)
2841 if (access_check (path
, info
->mode
) == 0)
2847 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2848 access to check permissions. If DO_MULTI is true, search multilib
2849 paths then non-multilib paths, otherwise do not search multilib paths.
2850 Return 0 if not found, otherwise return its name, allocated with malloc. */
2853 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2856 struct file_at_path_info info
;
2858 #ifdef DEFAULT_ASSEMBLER
2859 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2860 return xstrdup (DEFAULT_ASSEMBLER
);
2863 #ifdef DEFAULT_LINKER
2864 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2865 return xstrdup (DEFAULT_LINKER
);
2868 /* Determine the filename to execute (special case for absolute paths). */
2870 if (IS_ABSOLUTE_PATH (name
))
2872 if (access (name
, mode
) == 0)
2873 return xstrdup (name
);
2879 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2880 info
.name_len
= strlen (info
.name
);
2881 info
.suffix_len
= strlen (info
.suffix
);
2884 return (char*) for_each_path (pprefix
, do_multi
,
2885 info
.name_len
+ info
.suffix_len
,
2886 file_at_path
, &info
);
2889 /* Ranking of prefixes in the sort list. -B prefixes are put before
2892 enum path_prefix_priority
2894 PREFIX_PRIORITY_B_OPT
,
2895 PREFIX_PRIORITY_LAST
2898 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2899 order according to PRIORITY. Within each PRIORITY, new entries are
2902 If WARN is nonzero, we will warn if no file is found
2903 through this prefix. WARN should point to an int
2904 which will be set to 1 if this entry is used.
2906 COMPONENT is the value to be passed to update_path.
2908 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2909 the complete value of machine_suffix.
2910 2 means try both machine_suffix and just_machine_suffix. */
2913 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2914 const char *component
, /* enum prefix_priority */ int priority
,
2915 int require_machine_suffix
, int os_multilib
)
2917 struct prefix_list
*pl
, **prev
;
2920 for (prev
= &pprefix
->plist
;
2921 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2922 prev
= &(*prev
)->next
)
2925 /* Keep track of the longest prefix. */
2927 prefix
= update_path (prefix
, component
);
2928 len
= strlen (prefix
);
2929 if (len
> pprefix
->max_len
)
2930 pprefix
->max_len
= len
;
2932 pl
= XNEW (struct prefix_list
);
2933 pl
->prefix
= prefix
;
2934 pl
->require_machine_suffix
= require_machine_suffix
;
2935 pl
->priority
= priority
;
2936 pl
->os_multilib
= os_multilib
;
2938 /* Insert after PREV. */
2943 /* Same as add_prefix, but prepending target_system_root to prefix. */
2944 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2946 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2947 const char *component
,
2948 /* enum prefix_priority */ int priority
,
2949 int require_machine_suffix
, int os_multilib
)
2951 if (!IS_ABSOLUTE_PATH (prefix
))
2952 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
2954 if (target_system_root
)
2956 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2957 size_t sysroot_len
= strlen (target_system_root
);
2960 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2961 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2963 if (target_sysroot_suffix
)
2964 prefix
= concat (sysroot_no_trailing_dir_separator
,
2965 target_sysroot_suffix
, prefix
, NULL
);
2967 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2969 free (sysroot_no_trailing_dir_separator
);
2971 /* We have to override this because GCC's notion of sysroot
2972 moves along with GCC. */
2976 add_prefix (pprefix
, prefix
, component
, priority
,
2977 require_machine_suffix
, os_multilib
);
2980 /* Same as add_prefix, but prepending target_sysroot_hdrs_suffix to prefix. */
2983 add_sysrooted_hdrs_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2984 const char *component
,
2985 /* enum prefix_priority */ int priority
,
2986 int require_machine_suffix
, int os_multilib
)
2988 if (!IS_ABSOLUTE_PATH (prefix
))
2989 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
2991 if (target_system_root
)
2993 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2994 size_t sysroot_len
= strlen (target_system_root
);
2997 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2998 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
3000 if (target_sysroot_hdrs_suffix
)
3001 prefix
= concat (sysroot_no_trailing_dir_separator
,
3002 target_sysroot_hdrs_suffix
, prefix
, NULL
);
3004 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
3006 free (sysroot_no_trailing_dir_separator
);
3008 /* We have to override this because GCC's notion of sysroot
3009 moves along with GCC. */
3013 add_prefix (pprefix
, prefix
, component
, priority
,
3014 require_machine_suffix
, os_multilib
);
3018 /* Execute the command specified by the arguments on the current line of spec.
3019 When using pipes, this includes several piped-together commands
3020 with `|' between them.
3022 Return 0 if successful, -1 if failed. */
3028 int n_commands
; /* # of command. */
3030 struct pex_obj
*pex
;
3033 const char *prog
; /* program name. */
3034 const char **argv
; /* vector of args. */
3038 struct command
*commands
; /* each command buffer with above info. */
3040 gcc_assert (!processing_spec_function
);
3044 string
= find_a_file (&exec_prefixes
,
3045 argbuf
[0], X_OK
, false);
3048 insert_wrapper (wrapper_string
);
3051 /* Count # of piped commands. */
3052 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
3053 if (strcmp (arg
, "|") == 0)
3056 /* Get storage for each command. */
3057 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
3059 /* Split argbuf into its separate piped processes,
3060 and record info about each one.
3061 Also search for the programs that are to be run. */
3063 argbuf
.safe_push (0);
3065 commands
[0].prog
= argbuf
[0]; /* first command. */
3066 commands
[0].argv
= argbuf
.address ();
3068 if (!wrapper_string
)
3070 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
3072 commands
[0].argv
[0] = string
;
3075 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
3076 if (arg
&& strcmp (arg
, "|") == 0)
3077 { /* each command. */
3078 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
3079 fatal_error (input_location
, "%<-pipe%> not supported");
3081 argbuf
[i
] = 0; /* Termination of command args. */
3082 commands
[n_commands
].prog
= argbuf
[i
+ 1];
3083 commands
[n_commands
].argv
3084 = &(argbuf
.address ())[i
+ 1];
3085 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
3088 commands
[n_commands
].argv
[0] = string
;
3092 /* If -v, print what we are about to do, and maybe query. */
3096 /* For help listings, put a blank line between sub-processes. */
3097 if (print_help_list
)
3098 fputc ('\n', stderr
);
3100 /* Print each piped command as a separate line. */
3101 for (i
= 0; i
< n_commands
; i
++)
3103 const char *const *j
;
3105 if (verbose_only_flag
)
3107 for (j
= commands
[i
].argv
; *j
; j
++)
3110 for (p
= *j
; *p
; ++p
)
3111 if (!ISALNUM ((unsigned char) *p
)
3112 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
3116 fprintf (stderr
, " \"");
3117 for (p
= *j
; *p
; ++p
)
3119 if (*p
== '"' || *p
== '\\' || *p
== '$')
3120 fputc ('\\', stderr
);
3123 fputc ('"', stderr
);
3125 /* If it's empty, print "". */
3127 fprintf (stderr
, " \"\"");
3129 fprintf (stderr
, " %s", *j
);
3133 for (j
= commands
[i
].argv
; *j
; j
++)
3134 /* If it's empty, print "". */
3136 fprintf (stderr
, " \"\"");
3138 fprintf (stderr
, " %s", *j
);
3140 /* Print a pipe symbol after all but the last command. */
3141 if (i
+ 1 != n_commands
)
3142 fprintf (stderr
, " |");
3143 fprintf (stderr
, "\n");
3146 if (verbose_only_flag
!= 0)
3148 /* verbose_only_flag should act as if the spec was
3149 executed, so increment execution_count before
3150 returning. This prevents spurious warnings about
3151 unused linker input files, etc. */
3156 fnotice (stderr
, "\nGo ahead? (y or n) ");
3160 while (getchar () != '\n')
3163 if (i
!= 'y' && i
!= 'Y')
3168 #ifdef ENABLE_VALGRIND_CHECKING
3169 /* Run the each command through valgrind. To simplify prepending the
3170 path to valgrind and the option "-q" (for quiet operation unless
3171 something triggers), we allocate a separate argv array. */
3173 for (i
= 0; i
< n_commands
; i
++)
3179 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3182 argv
= XALLOCAVEC (const char *, argc
+ 3);
3184 argv
[0] = VALGRIND_PATH
;
3186 for (j
= 2; j
< argc
+ 2; j
++)
3187 argv
[j
] = commands
[i
].argv
[j
- 2];
3190 commands
[i
].argv
= argv
;
3191 commands
[i
].prog
= argv
[0];
3195 /* Run each piped subprocess. */
3197 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3198 ? PEX_RECORD_TIMES
: 0),
3199 progname
, temp_filename
);
3201 fatal_error (input_location
, "%<pex_init%> failed: %m");
3203 for (i
= 0; i
< n_commands
; i
++)
3207 const char *string
= commands
[i
].argv
[0];
3209 errmsg
= pex_run (pex
,
3210 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3211 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3212 string
, CONST_CAST (char **, commands
[i
].argv
),
3217 fatal_error (input_location
,
3218 err
? G_("cannot execute %qs: %s: %m")
3219 : G_("cannot execute %qs: %s"),
3223 if (i
&& string
!= commands
[i
].prog
)
3224 free (CONST_CAST (char *, string
));
3229 /* Wait for all the subprocesses to finish. */
3233 struct pex_time
*times
= NULL
;
3236 statuses
= (int *) alloca (n_commands
* sizeof (int));
3237 if (!pex_get_status (pex
, n_commands
, statuses
))
3238 fatal_error (input_location
, "failed to get exit status: %m");
3240 if (report_times
|| report_times_to_file
)
3242 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3243 if (!pex_get_times (pex
, n_commands
, times
))
3244 fatal_error (input_location
, "failed to get process times: %m");
3249 for (i
= 0; i
< n_commands
; ++i
)
3251 int status
= statuses
[i
];
3253 if (WIFSIGNALED (status
))
3254 switch (WTERMSIG (status
))
3258 /* SIGQUIT and SIGKILL are not available on MinGW. */
3265 /* The user (or environment) did something to the
3266 inferior. Making this an ICE confuses the user into
3267 thinking there's a compiler bug. Much more likely is
3268 the user or OOM killer nuked it. */
3269 fatal_error (input_location
,
3270 "%s signal terminated program %s",
3271 strsignal (WTERMSIG (status
)),
3277 /* SIGPIPE is a special case. It happens in -pipe mode
3278 when the compiler dies before the preprocessor is
3279 done, or the assembler dies before the compiler is
3280 done. There's generally been an error already, and
3281 this is just fallout. So don't generate another
3282 error unless we would otherwise have succeeded. */
3283 if (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
)
3293 /* The inferior failed to catch the signal. */
3294 internal_error_no_backtrace ("%s signal terminated program %s",
3295 strsignal (WTERMSIG (status
)),
3298 else if (WIFEXITED (status
)
3299 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3301 /* For ICEs in cc1, cc1obj, cc1plus see if it is
3302 reproducible or not. */
3305 && WEXITSTATUS (status
) == ICE_EXIT_CODE
3307 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
3308 && ! strncmp (p
+ 1, "cc1", 3))
3309 try_generate_repro (commands
[0].argv
);
3310 if (WEXITSTATUS (status
) > greatest_status
)
3311 greatest_status
= WEXITSTATUS (status
);
3315 if (report_times
|| report_times_to_file
)
3317 struct pex_time
*pt
= ×
[i
];
3320 ut
= ((double) pt
->user_seconds
3321 + (double) pt
->user_microseconds
/ 1.0e6
);
3322 st
= ((double) pt
->system_seconds
3323 + (double) pt
->system_microseconds
/ 1.0e6
);
3328 fnotice (stderr
, "# %s %.2f %.2f\n",
3329 commands
[i
].prog
, ut
, st
);
3331 if (report_times_to_file
)
3334 const char *const *j
;
3336 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3338 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3341 for (p
= *j
; *p
; ++p
)
3342 if (*p
== '"' || *p
== '\\' || *p
== '$'
3348 fprintf (report_times_to_file
, " \"");
3349 for (p
= *j
; *p
; ++p
)
3351 if (*p
== '"' || *p
== '\\' || *p
== '$')
3352 fputc ('\\', report_times_to_file
);
3353 fputc (*p
, report_times_to_file
);
3355 fputc ('"', report_times_to_file
);
3358 fprintf (report_times_to_file
, " %s", *j
);
3361 fputc ('\n', report_times_to_file
);
3367 if (commands
[0].argv
[0] != commands
[0].prog
)
3368 free (CONST_CAST (char *, commands
[0].argv
[0]));
3374 /* Find all the switches given to us
3375 and make a vector describing them.
3376 The elements of the vector are strings, one per switch given.
3377 If a switch uses following arguments, then the `part1' field
3378 is the switch itself and the `args' field
3379 is a null-terminated vector containing the following arguments.
3380 Bits in the `live_cond' field are:
3381 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3382 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3383 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3384 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored.
3385 SWITCH_KEEP_FOR_GCC to indicate that this switch, otherwise ignored,
3386 should be included in COLLECT_GCC_OPTIONS.
3387 in all do_spec calls afterwards. Used for %<S from self specs.
3388 The `known' field describes whether this is an internal switch.
3389 The `validated' field describes whether any spec has looked at this switch;
3390 if it remains false at the end of the run, the switch must be meaningless.
3391 The `ordering' field is used to temporarily mark switches that have to be
3392 kept in a specific order. */
3394 #define SWITCH_LIVE (1 << 0)
3395 #define SWITCH_FALSE (1 << 1)
3396 #define SWITCH_IGNORE (1 << 2)
3397 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
3398 #define SWITCH_KEEP_FOR_GCC (1 << 4)
3404 unsigned int live_cond
;
3410 static struct switchstr
*switches
;
3412 static int n_switches
;
3414 static int n_switches_alloc
;
3416 /* Set to zero if -fcompare-debug is disabled, positive if it's
3417 enabled and we're running the first compilation, negative if it's
3418 enabled and we're running the second compilation. For most of the
3419 time, it's in the range -1..1, but it can be temporarily set to 2
3420 or 3 to indicate that the -fcompare-debug flags didn't come from
3421 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3422 variable, until a synthesized -fcompare-debug flag is added to the
3426 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3427 int compare_debug_second
;
3429 /* Set to the flags that should be passed to the second compilation in
3430 a -fcompare-debug compilation. */
3431 const char *compare_debug_opt
;
3433 static struct switchstr
*switches_debug_check
[2];
3435 static int n_switches_debug_check
[2];
3437 static int n_switches_alloc_debug_check
[2];
3439 static char *debug_check_temp_file
[2];
3441 /* Language is one of three things:
3443 1) The name of a real programming language.
3444 2) NULL, indicating that no one has figured out
3446 3) '*', indicating that the file should be passed
3451 const char *language
;
3452 struct compiler
*incompiler
;
3457 /* Also a vector of input files specified. */
3459 static struct infile
*infiles
;
3463 static int n_infiles_alloc
;
3465 /* True if undefined environment variables encountered during spec processing
3466 are ok to ignore, typically when we're running for --help or --version. */
3468 static bool spec_undefvar_allowed
;
3470 /* True if multiple input files are being compiled to a single
3473 static bool combine_inputs
;
3475 /* This counts the number of libraries added by lang_specific_driver, so that
3476 we can tell if there were any user supplied any files or libraries. */
3478 static int added_libraries
;
3480 /* And a vector of corresponding output files is made up later. */
3482 const char **outfiles
;
3484 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3486 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3487 is true if we should look for an executable suffix. DO_OBJ
3488 is true if we should look for an object suffix. */
3491 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3492 int do_obj ATTRIBUTE_UNUSED
)
3494 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3502 len
= strlen (name
);
3504 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3505 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3506 if (do_obj
&& len
> 2
3507 && name
[len
- 2] == '.'
3508 && name
[len
- 1] == 'o')
3510 obstack_grow (&obstack
, name
, len
- 2);
3511 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3512 name
= XOBFINISH (&obstack
, const char *);
3516 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3517 /* If there is no filetype, make it the executable suffix (which includes
3518 the "."). But don't get confused if we have just "-o". */
3519 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3522 for (i
= len
- 1; i
>= 0; i
--)
3523 if (IS_DIR_SEPARATOR (name
[i
]))
3526 for (i
++; i
< len
; i
++)
3530 obstack_grow (&obstack
, name
, len
);
3531 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3532 strlen (TARGET_EXECUTABLE_SUFFIX
));
3533 name
= XOBFINISH (&obstack
, const char *);
3540 /* Display the command line switches accepted by gcc. */
3544 printf (_("Usage: %s [options] file...\n"), progname
);
3545 fputs (_("Options:\n"), stdout
);
3547 fputs (_(" -pass-exit-codes Exit with highest error code from a phase.\n"), stdout
);
3548 fputs (_(" --help Display this information.\n"), stdout
);
3549 fputs (_(" --target-help Display target specific command line options.\n"), stdout
);
3550 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...].\n"), stdout
);
3551 fputs (_(" Display specific types of command line options.\n"), stdout
);
3553 fputs (_(" (Use '-v --help' to display command line options of sub-processes).\n"), stdout
);
3554 fputs (_(" --version Display compiler version information.\n"), stdout
);
3555 fputs (_(" -dumpspecs Display all of the built in spec strings.\n"), stdout
);
3556 fputs (_(" -dumpversion Display the version of the compiler.\n"), stdout
);
3557 fputs (_(" -dumpmachine Display the compiler's target processor.\n"), stdout
);
3558 fputs (_(" -print-search-dirs Display the directories in the compiler's search path.\n"), stdout
);
3559 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library.\n"), stdout
);
3560 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>.\n"), stdout
);
3561 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>.\n"), stdout
);
3563 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3564 a component in the library path.\n"), stdout
);
3565 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc.\n"), stdout
);
3567 -print-multi-lib Display the mapping between command line options and\n\
3568 multiple library search directories.\n"), stdout
);
3569 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries.\n"), stdout
);
3570 fputs (_(" -print-sysroot Display the target libraries directory.\n"), stdout
);
3571 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers.\n"), stdout
);
3572 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler.\n"), stdout
);
3573 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor.\n"), stdout
);
3574 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker.\n"), stdout
);
3575 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler.\n"), stdout
);
3576 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor.\n"), stdout
);
3577 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker.\n"), stdout
);
3578 fputs (_(" -save-temps Do not delete intermediate files.\n"), stdout
);
3579 fputs (_(" -save-temps=<arg> Do not delete intermediate files.\n"), stdout
);
3581 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3582 prefixes to other gcc components.\n"), stdout
);
3583 fputs (_(" -pipe Use pipes rather than intermediate files.\n"), stdout
);
3584 fputs (_(" -time Time the execution of each subprocess.\n"), stdout
);
3585 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>.\n"), stdout
);
3586 fputs (_(" -std=<standard> Assume that the input sources are for <standard>.\n"), stdout
);
3588 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3589 and libraries.\n"), stdout
);
3590 fputs (_(" -B <directory> Add <directory> to the compiler's search paths.\n"), stdout
);
3591 fputs (_(" -v Display the programs invoked by the compiler.\n"), stdout
);
3592 fputs (_(" -### Like -v but options quoted and commands not executed.\n"), stdout
);
3593 fputs (_(" -E Preprocess only; do not compile, assemble or link.\n"), stdout
);
3594 fputs (_(" -S Compile only; do not assemble or link.\n"), stdout
);
3595 fputs (_(" -c Compile and assemble, but do not link.\n"), stdout
);
3596 fputs (_(" -o <file> Place the output into <file>.\n"), stdout
);
3597 fputs (_(" -pie Create a dynamically linked position independent\n\
3598 executable.\n"), stdout
);
3599 fputs (_(" -shared Create a shared library.\n"), stdout
);
3601 -x <language> Specify the language of the following input files.\n\
3602 Permissible languages include: c c++ assembler none\n\
3603 'none' means revert to the default behavior of\n\
3604 guessing the language based on the file's extension.\n\
3608 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3609 passed on to the various sub-processes invoked by %s. In order to pass\n\
3610 other options on to these processes the -W<letter> options must be used.\n\
3613 /* The rest of the options are displayed by invocations of the various
3618 add_preprocessor_option (const char *option
, int len
)
3620 preprocessor_options
.safe_push (save_string (option
, len
));
3624 add_assembler_option (const char *option
, int len
)
3626 assembler_options
.safe_push (save_string (option
, len
));
3630 add_linker_option (const char *option
, int len
)
3632 linker_options
.safe_push (save_string (option
, len
));
3635 /* Allocate space for an input file in infiles. */
3640 if (n_infiles_alloc
== 0)
3642 n_infiles_alloc
= 16;
3643 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3645 else if (n_infiles_alloc
== n_infiles
)
3647 n_infiles_alloc
*= 2;
3648 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3652 /* Store an input file with the given NAME and LANGUAGE in
3656 add_infile (const char *name
, const char *language
)
3659 infiles
[n_infiles
].name
= name
;
3660 infiles
[n_infiles
++].language
= language
;
3663 /* Allocate space for a switch in switches. */
3668 if (n_switches_alloc
== 0)
3670 n_switches_alloc
= 16;
3671 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3673 else if (n_switches_alloc
== n_switches
)
3675 n_switches_alloc
*= 2;
3676 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3680 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3681 as validated if VALIDATED and KNOWN if it is an internal switch. */
3684 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3685 bool validated
, bool known
)
3688 switches
[n_switches
].part1
= opt
+ 1;
3690 switches
[n_switches
].args
= 0;
3693 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3694 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3695 switches
[n_switches
].args
[n_args
] = NULL
;
3698 switches
[n_switches
].live_cond
= 0;
3699 switches
[n_switches
].validated
= validated
;
3700 switches
[n_switches
].known
= known
;
3701 switches
[n_switches
].ordering
= 0;
3705 /* Set the SOURCE_DATE_EPOCH environment variable to the current time if it is
3709 set_source_date_epoch_envvar ()
3711 /* Array size is 21 = ceil(log_10(2^64)) + 1 to hold string representations
3712 of 64 bit integers. */
3713 char source_date_epoch
[21];
3718 if (tt
< (time_t) 0 || errno
!= 0)
3721 snprintf (source_date_epoch
, 21, "%llu", (unsigned long long) tt
);
3722 /* Using setenv instead of xputenv because we want the variable to remain
3723 after finalizing so that it's still set in the second run when using
3725 setenv ("SOURCE_DATE_EPOCH", source_date_epoch
, 0);
3728 /* Handle an option DECODED that is unknown to the option-processing
3732 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3734 const char *opt
= decoded
->arg
;
3735 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3736 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3738 /* Leave unknown -Wno-* options for the compiler proper, to be
3739 diagnosed only if there are warnings. */
3740 save_switch (decoded
->canonical_option
[0],
3741 decoded
->canonical_option_num_elements
- 1,
3742 &decoded
->canonical_option
[1], false, true);
3745 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3747 /* Give it a chance to define it a spec file. */
3748 save_switch (decoded
->canonical_option
[0],
3749 decoded
->canonical_option_num_elements
- 1,
3750 &decoded
->canonical_option
[1], false, false);
3757 /* Handle an option DECODED that is not marked as CL_DRIVER.
3758 LANG_MASK will always be CL_DRIVER. */
3761 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3762 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3764 /* At this point, non-driver options are accepted (and expected to
3765 be passed down by specs) unless marked to be rejected by the
3766 driver. Options to be rejected by the driver but accepted by the
3767 compilers proper are treated just like completely unknown
3769 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3771 if (option
->cl_reject_driver
)
3772 error ("unrecognized command-line option %qs",
3773 decoded
->orig_option_with_args_text
);
3775 save_switch (decoded
->canonical_option
[0],
3776 decoded
->canonical_option_num_elements
- 1,
3777 &decoded
->canonical_option
[1], false, true);
3780 static const char *spec_lang
= 0;
3781 static int last_language_n_infiles
;
3783 /* Parse -foffload option argument. */
3786 handle_foffload_option (const char *arg
)
3788 const char *c
, *cur
, *n
, *next
, *end
;
3791 /* If option argument starts with '-' then no target is specified and we
3792 do not need to parse it. */
3796 end
= strchr (arg
, '=');
3798 end
= strchr (arg
, '\0');
3803 next
= strchr (cur
, ',');
3806 next
= (next
> end
) ? end
: next
;
3808 target
= XNEWVEC (char, next
- cur
+ 1);
3809 memcpy (target
, cur
, next
- cur
);
3810 target
[next
- cur
] = '\0';
3812 /* If 'disable' is passed to the option, stop parsing the option and clean
3813 the list of offload targets. */
3814 if (strcmp (target
, "disable") == 0)
3816 free (offload_targets
);
3817 offload_targets
= xstrdup ("");
3821 /* Check that GCC is configured to support the offload target. */
3822 c
= OFFLOAD_TARGETS
;
3825 n
= strchr (c
, ',');
3827 n
= strchr (c
, '\0');
3829 if (next
- cur
== n
- c
&& strncmp (target
, c
, n
- c
) == 0)
3832 c
= *n
? n
+ 1 : NULL
;
3836 fatal_error (input_location
,
3837 "GCC is not configured to support %s as offload target",
3840 if (!offload_targets
)
3842 offload_targets
= target
;
3847 /* Check that the target hasn't already presented in the list. */
3848 c
= offload_targets
;
3851 n
= strchr (c
, ':');
3853 n
= strchr (c
, '\0');
3855 if (next
- cur
== n
- c
&& strncmp (c
, target
, n
- c
) == 0)
3862 /* If duplicate is not found, append the target to the list. */
3865 size_t offload_targets_len
= strlen (offload_targets
);
3867 = XRESIZEVEC (char, offload_targets
,
3868 offload_targets_len
+ 1 + next
- cur
+ 1);
3869 offload_targets
[offload_targets_len
++] = ':';
3870 memcpy (offload_targets
+ offload_targets_len
, target
, next
- cur
+ 1);
3875 XDELETEVEC (target
);
3879 /* Handle a driver option; arguments and return value as for
3883 driver_handle_option (struct gcc_options
*opts
,
3884 struct gcc_options
*opts_set
,
3885 const struct cl_decoded_option
*decoded
,
3886 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3888 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3889 diagnostic_context
*dc
,
3892 size_t opt_index
= decoded
->opt_index
;
3893 const char *arg
= decoded
->arg
;
3894 const char *compare_debug_replacement_opt
;
3895 int value
= decoded
->value
;
3896 bool validated
= false;
3897 bool do_save
= true;
3899 gcc_assert (opts
== &global_options
);
3900 gcc_assert (opts_set
== &global_options_set
);
3901 gcc_assert (kind
== DK_UNSPECIFIED
);
3902 gcc_assert (loc
== UNKNOWN_LOCATION
);
3903 gcc_assert (dc
== global_dc
);
3909 struct spec_list
*sl
;
3911 for (sl
= specs
; sl
; sl
= sl
->next
)
3912 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3913 if (link_command_spec
)
3914 printf ("*link_command:\n%s\n\n", link_command_spec
);
3918 case OPT_dumpversion
:
3919 printf ("%s\n", spec_version
);
3922 case OPT_dumpmachine
:
3923 printf ("%s\n", spec_machine
);
3926 case OPT_dumpfullversion
:
3927 printf ("%s\n", BASEVER
);
3933 /* CPP driver cannot obtain switch from cc1_options. */
3935 add_preprocessor_option ("--version", strlen ("--version"));
3936 add_assembler_option ("--version", strlen ("--version"));
3937 add_linker_option ("--version", strlen ("--version"));
3940 case OPT__completion_
:
3942 completion
= decoded
->arg
;
3946 print_help_list
= 1;
3948 /* CPP driver cannot obtain switch from cc1_options. */
3950 add_preprocessor_option ("--help", 6);
3951 add_assembler_option ("--help", 6);
3952 add_linker_option ("--help", 6);
3956 print_subprocess_help
= 2;
3959 case OPT__target_help
:
3960 print_subprocess_help
= 1;
3962 /* CPP driver cannot obtain switch from cc1_options. */
3964 add_preprocessor_option ("--target-help", 13);
3965 add_assembler_option ("--target-help", 13);
3966 add_linker_option ("--target-help", 13);
3969 case OPT__no_sysroot_suffix
:
3970 case OPT_pass_exit_codes
:
3971 case OPT_print_search_dirs
:
3972 case OPT_print_file_name_
:
3973 case OPT_print_prog_name_
:
3974 case OPT_print_multi_lib
:
3975 case OPT_print_multi_directory
:
3976 case OPT_print_sysroot
:
3977 case OPT_print_multi_os_directory
:
3978 case OPT_print_multiarch
:
3979 case OPT_print_sysroot_headers_suffix
:
3982 /* These options set the variables specified in common.opt
3983 automatically, and do not need to be saved for spec
3988 case OPT_print_libgcc_file_name
:
3989 print_file_name
= "libgcc.a";
3993 case OPT_fuse_ld_bfd
:
3997 case OPT_fuse_ld_gold
:
4001 case OPT_fcompare_debug_second
:
4002 compare_debug_second
= 1;
4005 case OPT_fcompare_debug
:
4009 compare_debug_replacement_opt
= "-fcompare-debug=";
4011 goto compare_debug_with_arg
;
4014 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
4016 goto compare_debug_with_arg
;
4023 case OPT_fcompare_debug_
:
4024 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
4025 compare_debug_with_arg
:
4026 gcc_assert (decoded
->canonical_option_num_elements
== 1);
4027 gcc_assert (arg
!= NULL
);
4032 if (compare_debug
< 0)
4033 compare_debug_opt
= NULL
;
4035 compare_debug_opt
= arg
;
4036 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
4037 set_source_date_epoch_envvar ();
4040 case OPT_fdiagnostics_color_
:
4041 diagnostic_color_init (dc
, value
);
4044 case OPT_fdiagnostics_urls_
:
4045 diagnostic_urls_init (dc
, value
);
4048 case OPT_fdiagnostics_format_
:
4049 diagnostic_output_format_init (dc
,
4050 (enum diagnostics_output_format
)value
);
4056 /* Pass the rest of this option to the assembler. */
4058 /* Split the argument at commas. */
4060 for (j
= 0; arg
[j
]; j
++)
4063 add_assembler_option (arg
+ prev
, j
- prev
);
4067 /* Record the part after the last comma. */
4068 add_assembler_option (arg
+ prev
, j
- prev
);
4076 /* Pass the rest of this option to the preprocessor. */
4078 /* Split the argument at commas. */
4080 for (j
= 0; arg
[j
]; j
++)
4083 add_preprocessor_option (arg
+ prev
, j
- prev
);
4087 /* Record the part after the last comma. */
4088 add_preprocessor_option (arg
+ prev
, j
- prev
);
4096 /* Split the argument at commas. */
4098 for (j
= 0; arg
[j
]; j
++)
4101 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
4104 /* Record the part after the last comma. */
4105 add_infile (arg
+ prev
, "*");
4111 add_infile (arg
, "*");
4115 case OPT_Xpreprocessor
:
4116 add_preprocessor_option (arg
, strlen (arg
));
4120 case OPT_Xassembler
:
4121 add_assembler_option (arg
, strlen (arg
));
4126 /* POSIX allows separation of -l and the lib arg; canonicalize
4127 by concatenating -l with its arg */
4128 add_infile (concat ("-l", arg
, NULL
), "*");
4133 /* Similarly, canonicalize -L for linkers that may not accept
4134 separate arguments. */
4135 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
4140 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
4143 case OPT_save_temps
:
4144 save_temps_flag
= SAVE_TEMPS_CWD
;
4148 case OPT_save_temps_
:
4149 if (strcmp (arg
, "cwd") == 0)
4150 save_temps_flag
= SAVE_TEMPS_CWD
;
4151 else if (strcmp (arg
, "obj") == 0
4152 || strcmp (arg
, "object") == 0)
4153 save_temps_flag
= SAVE_TEMPS_OBJ
;
4155 fatal_error (input_location
, "%qs is an unknown %<-save-temps%> option",
4156 decoded
->orig_option_with_args_text
);
4159 case OPT_no_canonical_prefixes
:
4160 /* Already handled as a special case, so ignored here. */
4166 /* These options set the variables specified in common.opt
4167 automatically, but do need to be saved for spec
4173 struct user_specs
*user
= XNEW (struct user_specs
);
4175 user
->next
= (struct user_specs
*) 0;
4176 user
->filename
= arg
;
4177 if (user_specs_tail
)
4178 user_specs_tail
->next
= user
;
4180 user_specs_head
= user
;
4181 user_specs_tail
= user
;
4187 target_system_root
= arg
;
4188 target_system_root_changed
= 1;
4193 if (report_times_to_file
)
4194 fclose (report_times_to_file
);
4195 report_times_to_file
= fopen (arg
, "a");
4201 This is similar to -v except that there is no execution
4202 of the commands and the echoed arguments are quoted. It
4203 is intended for use in shell scripts to capture the
4204 driver-generated command line. */
4205 verbose_only_flag
++;
4212 size_t len
= strlen (arg
);
4214 /* Catch the case where the user has forgotten to append a
4215 directory separator to the path. Note, they may be using
4216 -B to add an executable name prefix, eg "i386-elf-", in
4217 order to distinguish between multiple installations of
4218 GCC in the same directory. Hence we must check to see
4219 if appending a directory separator actually makes a
4220 valid directory name. */
4221 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
4222 && is_directory (arg
, false))
4224 char *tmp
= XNEWVEC (char, len
+ 2);
4226 tmp
[len
] = DIR_SEPARATOR
;
4231 add_prefix (&exec_prefixes
, arg
, NULL
,
4232 PREFIX_PRIORITY_B_OPT
, 0, 0);
4233 add_prefix (&startfile_prefixes
, arg
, NULL
,
4234 PREFIX_PRIORITY_B_OPT
, 0, 0);
4235 add_prefix (&include_prefixes
, arg
, NULL
,
4236 PREFIX_PRIORITY_B_OPT
, 0, 0);
4247 if (!strcmp (spec_lang
, "none"))
4248 /* Suppress the warning if -xnone comes after the last input
4249 file, because alternate command interfaces like g++ might
4250 find it useful to place -xnone after each input file. */
4253 last_language_n_infiles
= n_infiles
;
4259 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4260 arg
= convert_filename (arg
, ! have_c
, 0);
4263 /* Save the output name in case -save-temps=obj was used. */
4264 save_temps_prefix
= xstrdup (arg
);
4265 /* On some systems, ld cannot handle "-o" without a space. So
4266 split the option from its argument. */
4267 save_switch ("-o", 1, &arg
, validated
, true);
4270 #ifdef ENABLE_DEFAULT_PIE
4272 /* -pie is turned on by default. */
4275 case OPT_static_libgcc
:
4276 case OPT_shared_libgcc
:
4277 case OPT_static_libgfortran
:
4278 case OPT_static_libstdc__
:
4279 /* These are always valid, since gcc.c itself understands the
4280 first two, gfortranspec.c understands -static-libgfortran and
4281 g++spec.c understands -static-libstdc++ */
4290 handle_foffload_option (arg
);
4294 /* Various driver options need no special processing at this
4295 point, having been handled in a prescan above or being
4296 handled by specs. */
4301 save_switch (decoded
->canonical_option
[0],
4302 decoded
->canonical_option_num_elements
- 1,
4303 &decoded
->canonical_option
[1], validated
, true);
4307 /* Put the driver's standard set of option handlers in *HANDLERS. */
4310 set_option_handlers (struct cl_option_handlers
*handlers
)
4312 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
4313 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
4314 handlers
->num_handlers
= 3;
4315 handlers
->handlers
[0].handler
= driver_handle_option
;
4316 handlers
->handlers
[0].mask
= CL_DRIVER
;
4317 handlers
->handlers
[1].handler
= common_handle_option
;
4318 handlers
->handlers
[1].mask
= CL_COMMON
;
4319 handlers
->handlers
[2].handler
= target_handle_option
;
4320 handlers
->handlers
[2].mask
= CL_TARGET
;
4323 /* Create the vector `switches' and its contents.
4324 Store its length in `n_switches'. */
4327 process_command (unsigned int decoded_options_count
,
4328 struct cl_decoded_option
*decoded_options
)
4332 char *tooldir_prefix
, *tooldir_prefix2
;
4333 char *(*get_relative_prefix
) (const char *, const char *,
4334 const char *) = NULL
;
4335 struct cl_option_handlers handlers
;
4338 gcc_exec_prefix
= env
.get ("GCC_EXEC_PREFIX");
4342 added_libraries
= 0;
4344 /* Figure compiler version from version string. */
4346 compiler_version
= temp1
= xstrdup (version_string
);
4348 for (; *temp1
; ++temp1
)
4357 /* Handle any -no-canonical-prefixes flag early, to assign the function
4358 that builds relative prefixes. This function creates default search
4359 paths that are needed later in normal option handling. */
4361 for (j
= 1; j
< decoded_options_count
; j
++)
4363 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
4365 get_relative_prefix
= make_relative_prefix_ignore_links
;
4369 if (! get_relative_prefix
)
4370 get_relative_prefix
= make_relative_prefix
;
4372 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
4373 see if we can create it from the pathname specified in
4374 decoded_options[0].arg. */
4376 gcc_libexec_prefix
= standard_libexec_prefix
;
4378 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
4379 if (!gcc_exec_prefix
)
4381 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4382 standard_bindir_prefix
,
4383 standard_exec_prefix
);
4384 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4385 standard_bindir_prefix
,
4386 standard_libexec_prefix
);
4387 if (gcc_exec_prefix
)
4388 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
4392 /* make_relative_prefix requires a program name, but
4393 GCC_EXEC_PREFIX is typically a directory name with a trailing
4394 / (which is ignored by make_relative_prefix), so append a
4396 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
4397 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
4398 standard_exec_prefix
,
4399 standard_libexec_prefix
);
4401 /* The path is unrelocated, so fallback to the original setting. */
4402 if (!gcc_libexec_prefix
)
4403 gcc_libexec_prefix
= standard_libexec_prefix
;
4409 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
4410 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
4411 or an automatically created GCC_EXEC_PREFIX from
4412 decoded_options[0].arg. */
4414 /* Do language-specific adjustment/addition of flags. */
4415 lang_specific_driver (&decoded_options
, &decoded_options_count
,
4418 if (gcc_exec_prefix
)
4420 int len
= strlen (gcc_exec_prefix
);
4422 if (len
> (int) sizeof ("/lib/gcc/") - 1
4423 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
4425 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
4426 if (IS_DIR_SEPARATOR (*temp
)
4427 && filename_ncmp (temp
+ 1, "lib", 3) == 0
4428 && IS_DIR_SEPARATOR (temp
[4])
4429 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
4430 len
-= sizeof ("/lib/gcc/") - 1;
4433 set_std_prefix (gcc_exec_prefix
, len
);
4434 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
4435 PREFIX_PRIORITY_LAST
, 0, 0);
4436 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
4437 PREFIX_PRIORITY_LAST
, 0, 0);
4440 /* COMPILER_PATH and LIBRARY_PATH have values
4441 that are lists of directory names with colons. */
4443 temp
= env
.get ("COMPILER_PATH");
4446 const char *startp
, *endp
;
4447 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4449 startp
= endp
= temp
;
4452 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4454 strncpy (nstore
, startp
, endp
- startp
);
4456 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4457 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4459 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4460 nstore
[endp
- startp
+ 1] = 0;
4463 nstore
[endp
- startp
] = 0;
4464 add_prefix (&exec_prefixes
, nstore
, 0,
4465 PREFIX_PRIORITY_LAST
, 0, 0);
4466 add_prefix (&include_prefixes
, nstore
, 0,
4467 PREFIX_PRIORITY_LAST
, 0, 0);
4470 endp
= startp
= endp
+ 1;
4477 temp
= env
.get (LIBRARY_PATH_ENV
);
4478 if (temp
&& *cross_compile
== '0')
4480 const char *startp
, *endp
;
4481 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4483 startp
= endp
= temp
;
4486 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4488 strncpy (nstore
, startp
, endp
- startp
);
4490 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4491 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4493 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4494 nstore
[endp
- startp
+ 1] = 0;
4497 nstore
[endp
- startp
] = 0;
4498 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4499 PREFIX_PRIORITY_LAST
, 0, 1);
4502 endp
= startp
= endp
+ 1;
4509 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4510 temp
= env
.get ("LPATH");
4511 if (temp
&& *cross_compile
== '0')
4513 const char *startp
, *endp
;
4514 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4516 startp
= endp
= temp
;
4519 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4521 strncpy (nstore
, startp
, endp
- startp
);
4523 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4524 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4526 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4527 nstore
[endp
- startp
+ 1] = 0;
4530 nstore
[endp
- startp
] = 0;
4531 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4532 PREFIX_PRIORITY_LAST
, 0, 1);
4535 endp
= startp
= endp
+ 1;
4542 /* Process the options and store input files and switches in their
4545 last_language_n_infiles
= -1;
4547 set_option_handlers (&handlers
);
4549 for (j
= 1; j
< decoded_options_count
; j
++)
4551 switch (decoded_options
[j
].opt_index
)
4563 for (j
= 1; j
< decoded_options_count
; j
++)
4565 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4567 const char *arg
= decoded_options
[j
].arg
;
4568 const char *p
= strrchr (arg
, '@');
4572 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4573 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4575 /* For LTO static archive support we handle input file
4576 specifications that are composed of a filename and
4577 an offset like FNAME@OFFSET. */
4580 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4581 && strlen (p
) == (unsigned int)consumed
)
4583 fname
= (char *)xmalloc (p
- arg
+ 1);
4584 memcpy (fname
, arg
, p
- arg
);
4585 fname
[p
- arg
] = '\0';
4586 /* Only accept non-stdin and existing FNAME parts, otherwise
4587 try with the full name. */
4588 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4591 fname
= xstrdup (arg
);
4595 fname
= xstrdup (arg
);
4597 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4599 bool resp
= fname
[0] == '@' && access (fname
+ 1, F_OK
) < 0;
4600 error ("%s: %m", fname
+ resp
);
4603 add_infile (arg
, spec_lang
);
4609 read_cmdline_option (&global_options
, &global_options_set
,
4610 decoded_options
+ j
, UNKNOWN_LOCATION
,
4611 CL_DRIVER
, &handlers
, global_dc
);
4614 /* If the user didn't specify any, default to all configured offload
4616 if (ENABLE_OFFLOADING
&& offload_targets
== NULL
)
4617 handle_foffload_option (OFFLOAD_TARGETS
);
4620 && strcmp (output_file
, "-") != 0
4621 && strcmp (output_file
, HOST_BIT_BUCKET
) != 0)
4624 for (i
= 0; i
< n_infiles
; i
++)
4625 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
4626 && canonical_filename_eq (infiles
[i
].name
, output_file
))
4627 fatal_error (input_location
,
4628 "input file %qs is the same as output file",
4632 if (output_file
!= NULL
&& output_file
[0] == '\0')
4633 fatal_error (input_location
, "output filename may not be empty");
4635 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4636 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4637 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4639 save_temps_length
= strlen (save_temps_prefix
);
4640 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4643 save_temps_length
-= strlen (temp
);
4644 save_temps_prefix
[save_temps_length
] = '\0';
4648 else if (save_temps_prefix
!= NULL
)
4650 free (save_temps_prefix
);
4651 save_temps_prefix
= NULL
;
4654 if (save_temps_flag
&& use_pipes
)
4656 /* -save-temps overrides -pipe, so that temp files are produced */
4657 if (save_temps_flag
)
4658 warning (0, "%<-pipe%> ignored because %<-save-temps%> specified");
4664 const char *gcd
= env
.get ("GCC_COMPARE_DEBUG");
4666 if (gcd
&& gcd
[0] == '-')
4669 compare_debug_opt
= gcd
;
4671 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4674 compare_debug_opt
= "-gtoggle";
4677 else if (compare_debug
< 0)
4680 gcc_assert (!compare_debug_opt
);
4683 /* Set up the search paths. We add directories that we expect to
4684 contain GNU Toolchain components before directories specified by
4685 the machine description so that we will find GNU components (like
4686 the GNU assembler) before those of the host system. */
4688 /* If we don't know where the toolchain has been installed, use the
4689 configured-in locations. */
4690 if (!gcc_exec_prefix
)
4693 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4694 PREFIX_PRIORITY_LAST
, 1, 0);
4695 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4696 PREFIX_PRIORITY_LAST
, 2, 0);
4697 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4698 PREFIX_PRIORITY_LAST
, 2, 0);
4700 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4701 PREFIX_PRIORITY_LAST
, 1, 0);
4704 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4705 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
4706 dir_separator_str
, NULL
);
4708 /* Look for tools relative to the location from which the driver is
4709 running, or, if that is not available, the configured prefix. */
4711 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4712 spec_host_machine
, dir_separator_str
, spec_version
,
4713 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
4714 free (tooldir_prefix2
);
4716 add_prefix (&exec_prefixes
,
4717 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4718 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4719 add_prefix (&startfile_prefixes
,
4720 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4721 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4722 free (tooldir_prefix
);
4724 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4725 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4726 then consider it to relocate with the rest of the GCC installation
4727 if GCC_EXEC_PREFIX is set.
4728 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4729 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4731 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4732 standard_bindir_prefix
,
4733 target_system_root
);
4734 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4736 target_system_root
= tmp_prefix
;
4737 target_system_root_changed
= 1;
4742 /* More prefixes are enabled in main, after we read the specs file
4743 and determine whether this is cross-compilation or not. */
4745 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4746 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4748 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4749 environment variable. */
4750 if (compare_debug
== 2 || compare_debug
== 3)
4752 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4753 save_switch (opt
, 0, NULL
, false, true);
4757 /* Ensure we only invoke each subprocess once. */
4759 && (print_subprocess_help
|| print_help_list
|| print_version
))
4761 /* Create a dummy input file, so that we can pass
4762 the help option on to the various sub-processes. */
4763 add_infile ("help-dummy", "c");
4766 /* Decide if undefined variable references are allowed in specs. */
4768 /* -v alone is safe. --version and --help alone or together are safe. Note
4769 that -v would make them unsafe, as they'd then be run for subprocesses as
4770 well, the location of which might depend on variables possibly coming
4771 from self-specs. Note also that the command name is counted in
4772 decoded_options_count. */
4774 unsigned help_version_count
= 0;
4777 help_version_count
++;
4779 if (print_help_list
)
4780 help_version_count
++;
4782 spec_undefvar_allowed
=
4783 ((verbose_flag
&& decoded_options_count
== 2)
4784 || help_version_count
== decoded_options_count
- 1);
4787 switches
[n_switches
].part1
= 0;
4789 infiles
[n_infiles
].name
= 0;
4792 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4793 and place that in the environment. */
4796 set_collect_gcc_options (void)
4801 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4803 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4804 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4807 for (i
= 0; (int) i
< n_switches
; i
++)
4809 const char *const *args
;
4812 obstack_grow (&collect_obstack
, " ", 1);
4816 /* Ignore elided switches. */
4817 if ((switches
[i
].live_cond
4818 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4822 obstack_grow (&collect_obstack
, "'-", 2);
4823 q
= switches
[i
].part1
;
4824 while ((p
= strchr (q
, '\'')))
4826 obstack_grow (&collect_obstack
, q
, p
- q
);
4827 obstack_grow (&collect_obstack
, "'\\''", 4);
4830 obstack_grow (&collect_obstack
, q
, strlen (q
));
4831 obstack_grow (&collect_obstack
, "'", 1);
4833 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4835 obstack_grow (&collect_obstack
, " '", 2);
4837 while ((p
= strchr (q
, '\'')))
4839 obstack_grow (&collect_obstack
, q
, p
- q
);
4840 obstack_grow (&collect_obstack
, "'\\''", 4);
4843 obstack_grow (&collect_obstack
, q
, strlen (q
));
4844 obstack_grow (&collect_obstack
, "'", 1);
4847 obstack_grow (&collect_obstack
, "\0", 1);
4848 xputenv (XOBFINISH (&collect_obstack
, char *));
4851 /* Process a spec string, accumulating and running commands. */
4853 /* These variables describe the input file name.
4854 input_file_number is the index on outfiles of this file,
4855 so that the output file name can be stored for later use by %o.
4856 input_basename is the start of the part of the input file
4857 sans all directory names, and basename_length is the number
4858 of characters starting there excluding the suffix .c or whatever. */
4860 static const char *gcc_input_filename
;
4861 static int input_file_number
;
4862 size_t input_filename_length
;
4863 static int basename_length
;
4864 static int suffixed_basename_length
;
4865 static const char *input_basename
;
4866 static const char *input_suffix
;
4867 #ifndef HOST_LACKS_INODE_NUMBERS
4868 static struct stat input_stat
;
4870 static int input_stat_set
;
4872 /* The compiler used to process the current input file. */
4873 static struct compiler
*input_file_compiler
;
4875 /* These are variables used within do_spec and do_spec_1. */
4877 /* Nonzero if an arg has been started and not yet terminated
4878 (with space, tab or newline). */
4879 static int arg_going
;
4881 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4882 is a temporary file name. */
4883 static int delete_this_arg
;
4885 /* Nonzero means %w has been seen; the next arg to be terminated
4886 is the output file name of this compilation. */
4887 static int this_is_output_file
;
4889 /* Nonzero means %s has been seen; the next arg to be terminated
4890 is the name of a library file and we should try the standard
4891 search dirs for it. */
4892 static int this_is_library_file
;
4894 /* Nonzero means %T has been seen; the next arg to be terminated
4895 is the name of a linker script and we should try all of the
4896 standard search dirs for it. If it is found insert a --script
4897 command line switch and then substitute the full path in place,
4898 otherwise generate an error message. */
4899 static int this_is_linker_script
;
4901 /* Nonzero means that the input of this command is coming from a pipe. */
4902 static int input_from_pipe
;
4904 /* Nonnull means substitute this for any suffix when outputting a switches
4906 static const char *suffix_subst
;
4908 /* If there is an argument being accumulated, terminate it and store it. */
4911 end_going_arg (void)
4917 obstack_1grow (&obstack
, 0);
4918 string
= XOBFINISH (&obstack
, const char *);
4919 if (this_is_library_file
)
4920 string
= find_file (string
);
4921 if (this_is_linker_script
)
4923 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4925 if (full_script_path
== NULL
)
4927 error ("unable to locate default linker script %qs in the library search paths", string
);
4928 /* Script was not found on search path. */
4931 store_arg ("--script", false, false);
4932 string
= full_script_path
;
4934 store_arg (string
, delete_this_arg
, this_is_output_file
);
4935 if (this_is_output_file
)
4936 outfiles
[input_file_number
] = string
;
4942 /* Parse the WRAPPER string which is a comma separated list of the command line
4943 and insert them into the beginning of argbuf. */
4946 insert_wrapper (const char *wrapper
)
4950 char *buf
= xstrdup (wrapper
);
4952 unsigned int old_length
= argbuf
.length ();
4960 while ((p
= strchr (p
, ',')) != NULL
);
4962 argbuf
.safe_grow (old_length
+ n
);
4963 memmove (argbuf
.address () + n
,
4965 old_length
* sizeof (const_char_p
));
4979 while ((p
= strchr (p
, ',')) != NULL
);
4980 gcc_assert (i
== n
);
4983 /* Process the spec SPEC and run the commands specified therein.
4984 Returns 0 if the spec is successfully processed; -1 if failed. */
4987 do_spec (const char *spec
)
4991 value
= do_spec_2 (spec
, NULL
);
4993 /* Force out any unfinished command.
4994 If -pipe, this forces out the last command if it ended in `|'. */
4997 if (argbuf
.length () > 0
4998 && !strcmp (argbuf
.last (), "|"))
5001 set_collect_gcc_options ();
5003 if (argbuf
.length () > 0)
5010 /* Process the spec SPEC, with SOFT_MATCHED_PART designating the current value
5011 of a matched * pattern which may be re-injected by way of %*. */
5014 do_spec_2 (const char *spec
, const char *soft_matched_part
)
5020 delete_this_arg
= 0;
5021 this_is_output_file
= 0;
5022 this_is_library_file
= 0;
5023 this_is_linker_script
= 0;
5024 input_from_pipe
= 0;
5025 suffix_subst
= NULL
;
5027 result
= do_spec_1 (spec
, 0, soft_matched_part
);
5034 /* Process the given spec string and add any new options to the end
5035 of the switches/n_switches array. */
5038 do_option_spec (const char *name
, const char *spec
)
5040 unsigned int i
, value_count
, value_len
;
5041 const char *p
, *q
, *value
;
5042 char *tmp_spec
, *tmp_spec_p
;
5044 if (configure_default_options
[0].name
== NULL
)
5047 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
5048 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
5050 if (i
== ARRAY_SIZE (configure_default_options
))
5053 value
= configure_default_options
[i
].value
;
5054 value_len
= strlen (value
);
5056 /* Compute the size of the final spec. */
5059 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
5065 /* Replace each %(VALUE) by the specified value. */
5066 tmp_spec
= (char *) alloca (strlen (spec
) + 1
5067 + value_count
* (value_len
- strlen ("%(VALUE)")));
5068 tmp_spec_p
= tmp_spec
;
5070 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
5072 memcpy (tmp_spec_p
, q
, p
- q
);
5073 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
5074 memcpy (tmp_spec_p
, value
, value_len
);
5075 tmp_spec_p
+= value_len
;
5076 q
= p
+ strlen ("%(VALUE)");
5078 strcpy (tmp_spec_p
, q
);
5080 do_self_spec (tmp_spec
);
5083 /* Process the given spec string and add any new options to the end
5084 of the switches/n_switches array. */
5087 do_self_spec (const char *spec
)
5091 do_spec_2 (spec
, NULL
);
5092 do_spec_1 (" ", 0, NULL
);
5094 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
5095 do_self_specs adds the replacements to switches array, so it shouldn't
5096 be processed afterwards. */
5097 for (i
= 0; i
< n_switches
; i
++)
5098 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
5099 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
5101 if (argbuf
.length () > 0)
5103 const char **argbuf_copy
;
5104 struct cl_decoded_option
*decoded_options
;
5105 struct cl_option_handlers handlers
;
5106 unsigned int decoded_options_count
;
5109 /* Create a copy of argbuf with a dummy argv[0] entry for
5110 decode_cmdline_options_to_array. */
5111 argbuf_copy
= XNEWVEC (const char *,
5112 argbuf
.length () + 1);
5113 argbuf_copy
[0] = "";
5114 memcpy (argbuf_copy
+ 1, argbuf
.address (),
5115 argbuf
.length () * sizeof (const char *));
5117 decode_cmdline_options_to_array (argbuf
.length () + 1,
5119 CL_DRIVER
, &decoded_options
,
5120 &decoded_options_count
);
5123 set_option_handlers (&handlers
);
5125 for (j
= 1; j
< decoded_options_count
; j
++)
5127 switch (decoded_options
[j
].opt_index
)
5129 case OPT_SPECIAL_input_file
:
5130 /* Specs should only generate options, not input
5132 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
5133 fatal_error (input_location
,
5134 "switch %qs does not start with %<-%>",
5135 decoded_options
[j
].arg
);
5137 fatal_error (input_location
,
5138 "spec-generated switch is just %<-%>");
5141 case OPT_fcompare_debug_second
:
5142 case OPT_fcompare_debug
:
5143 case OPT_fcompare_debug_
:
5145 /* Avoid duplicate processing of some options from
5146 compare-debug specs; just save them here. */
5147 save_switch (decoded_options
[j
].canonical_option
[0],
5148 (decoded_options
[j
].canonical_option_num_elements
5150 &decoded_options
[j
].canonical_option
[1], false, true);
5154 read_cmdline_option (&global_options
, &global_options_set
,
5155 decoded_options
+ j
, UNKNOWN_LOCATION
,
5156 CL_DRIVER
, &handlers
, global_dc
);
5161 free (decoded_options
);
5164 switches
[n_switches
].part1
= 0;
5168 /* Callback for processing %D and %I specs. */
5170 struct spec_path_info
{
5175 bool separate_options
;
5179 spec_path (char *path
, void *data
)
5181 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
5185 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
5188 if (info
->append_len
!= 0)
5190 len
= strlen (path
);
5191 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
5194 if (!is_directory (path
, true))
5197 do_spec_1 (info
->option
, 1, NULL
);
5198 if (info
->separate_options
)
5199 do_spec_1 (" ", 0, NULL
);
5201 if (info
->append_len
== 0)
5203 len
= strlen (path
);
5204 save
= path
[len
- 1];
5205 if (IS_DIR_SEPARATOR (path
[len
- 1]))
5206 path
[len
- 1] = '\0';
5209 do_spec_1 (path
, 1, NULL
);
5210 do_spec_1 (" ", 0, NULL
);
5212 /* Must not damage the original path. */
5213 if (info
->append_len
== 0)
5214 path
[len
- 1] = save
;
5219 /* True if we should compile INFILE. */
5222 compile_input_file_p (struct infile
*infile
)
5224 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5225 if (infile
->incompiler
== input_file_compiler
)
5230 /* Process each member of VEC as a spec. */
5233 do_specs_vec (vec
<char_p
> vec
)
5238 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
5240 do_spec_1 (opt
, 1, NULL
);
5241 /* Make each accumulated option a separate argument. */
5242 do_spec_1 (" ", 0, NULL
);
5246 /* Process the sub-spec SPEC as a portion of a larger spec.
5247 This is like processing a whole spec except that we do
5248 not initialize at the beginning and we do not supply a
5249 newline by default at the end.
5250 INSWITCH nonzero means don't process %-sequences in SPEC;
5251 in this case, % is treated as an ordinary character.
5252 This is used while substituting switches.
5253 INSWITCH nonzero also causes SPC not to terminate an argument.
5255 Value is zero unless a line was finished
5256 and the command on that line reported an error. */
5259 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5261 const char *p
= spec
;
5266 /* If it's an empty string argument to a switch, keep it as is. */
5267 if (inswitch
&& !*p
)
5271 /* If substituting a switch, treat all chars like letters.
5272 Otherwise, NL, SPC, TAB and % are special. */
5273 switch (inswitch
? 'a' : c
)
5278 if (argbuf
.length () > 0
5279 && !strcmp (argbuf
.last (), "|"))
5281 /* A `|' before the newline means use a pipe here,
5282 but only if -pipe was specified.
5283 Otherwise, execute now and don't pass the `|' as an arg. */
5286 input_from_pipe
= 1;
5293 set_collect_gcc_options ();
5295 if (argbuf
.length () > 0)
5301 /* Reinitialize for a new command, and for a new argument. */
5304 delete_this_arg
= 0;
5305 this_is_output_file
= 0;
5306 this_is_library_file
= 0;
5307 this_is_linker_script
= 0;
5308 input_from_pipe
= 0;
5315 obstack_1grow (&obstack
, c
);
5323 /* Reinitialize for a new argument. */
5324 delete_this_arg
= 0;
5325 this_is_output_file
= 0;
5326 this_is_library_file
= 0;
5327 this_is_linker_script
= 0;
5334 fatal_error (input_location
, "spec %qs invalid", spec
);
5337 if (save_temps_length
)
5338 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5340 obstack_grow (&obstack
, input_basename
, basename_length
);
5341 if (compare_debug
< 0)
5342 obstack_grow (&obstack
, ".gk", 3);
5347 if (save_temps_length
)
5348 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5350 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
5351 if (compare_debug
< 0)
5352 obstack_grow (&obstack
, ".gk", 3);
5357 delete_this_arg
= 2;
5360 /* Dump out the directories specified with LIBRARY_PATH,
5361 followed by the absolute directories
5362 that we search for startfiles. */
5365 struct spec_path_info info
;
5368 info
.append_len
= 0;
5369 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5370 /* Used on systems which record the specified -L dirs
5371 and use them to search for dynamic linking.
5372 Relative directories always come from -B,
5373 and it is better not to use them for searching
5374 at run time. In particular, stage1 loses. */
5375 info
.omit_relative
= true;
5377 info
.omit_relative
= false;
5379 info
.separate_options
= false;
5381 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5386 /* %efoo means report an error with `foo' as error message
5387 and don't execute any more commands for this file. */
5391 while (*p
!= 0 && *p
!= '\n')
5393 buf
= (char *) alloca (p
- q
+ 1);
5394 strncpy (buf
, q
, p
- q
);
5396 error ("%s", _(buf
));
5401 /* %nfoo means report a notice with `foo' on stderr. */
5405 while (*p
!= 0 && *p
!= '\n')
5407 buf
= (char *) alloca (p
- q
+ 1);
5408 strncpy (buf
, q
, p
- q
);
5410 inform (UNKNOWN_LOCATION
, "%s", _(buf
));
5420 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5421 defined, and it is not a directory, and it is
5422 writable, use it. Otherwise, treat this like any
5423 other temporary file. */
5425 if ((!save_temps_flag
)
5426 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5427 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5429 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5430 strlen (HOST_BIT_BUCKET
));
5431 delete_this_arg
= 0;
5436 goto create_temp_file
;
5440 obstack_1grow (&obstack
, '-');
5441 delete_this_arg
= 0;
5444 /* consume suffix */
5445 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5447 if (p
[0] == '%' && p
[1] == 'O')
5452 goto create_temp_file
;
5456 /* consume suffix */
5457 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5459 if (p
[0] == '%' && p
[1] == 'O')
5464 goto create_temp_file
;
5470 struct temp_name
*t
;
5472 const char *suffix
= p
;
5473 char *saved_suffix
= NULL
;
5475 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5477 suffix_length
= p
- suffix
;
5478 if (p
[0] == '%' && p
[1] == 'O')
5481 /* We don't support extra suffix characters after %O. */
5482 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5483 fatal_error (input_location
,
5484 "spec %qs has invalid %<%%0%c%>", spec
, *p
);
5485 if (suffix_length
== 0)
5486 suffix
= TARGET_OBJECT_SUFFIX
;
5490 = XNEWVEC (char, suffix_length
5491 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
5492 strncpy (saved_suffix
, suffix
, suffix_length
);
5493 strcpy (saved_suffix
+ suffix_length
,
5494 TARGET_OBJECT_SUFFIX
);
5496 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5499 if (compare_debug
< 0)
5501 suffix
= concat (".gk", suffix
, NULL
);
5505 /* If -save-temps=obj and -o were specified, use that for the
5507 if (save_temps_length
)
5510 temp_filename_length
5511 = save_temps_length
+ suffix_length
+ 1;
5512 tmp
= (char *) alloca (temp_filename_length
);
5513 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5514 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5515 tmp
[save_temps_length
+ suffix_length
] = '\0';
5516 temp_filename
= save_string (tmp
, save_temps_length
5518 obstack_grow (&obstack
, temp_filename
,
5519 temp_filename_length
);
5521 delete_this_arg
= 0;
5525 /* If the gcc_input_filename has the same suffix specified
5526 for the %g, %u, or %U, and -save-temps is specified,
5527 we could end up using that file as an intermediate
5528 thus clobbering the user's source file (.e.g.,
5529 gcc -save-temps foo.s would clobber foo.s with the
5530 output of cpp0). So check for this condition and
5531 generate a temp file as the intermediate. */
5533 if (save_temps_flag
)
5536 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5537 tmp
= (char *) alloca (temp_filename_length
);
5538 memcpy (tmp
, input_basename
, basename_length
);
5539 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5540 tmp
[basename_length
+ suffix_length
] = '\0';
5541 temp_filename
= tmp
;
5543 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
5545 #ifndef HOST_LACKS_INODE_NUMBERS
5546 struct stat st_temp
;
5548 /* Note, set_input() resets input_stat_set to 0. */
5549 if (input_stat_set
== 0)
5551 input_stat_set
= stat (gcc_input_filename
,
5553 if (input_stat_set
>= 0)
5557 /* If we have the stat for the gcc_input_filename
5558 and we can do the stat for the temp_filename
5559 then the they could still refer to the same
5560 file if st_dev/st_ino's are the same. */
5561 if (input_stat_set
!= 1
5562 || stat (temp_filename
, &st_temp
) < 0
5563 || input_stat
.st_dev
!= st_temp
.st_dev
5564 || input_stat
.st_ino
!= st_temp
.st_ino
)
5566 /* Just compare canonical pathnames. */
5567 char* input_realname
= lrealpath (gcc_input_filename
);
5568 char* temp_realname
= lrealpath (temp_filename
);
5569 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
5570 free (input_realname
);
5571 free (temp_realname
);
5576 = save_string (temp_filename
,
5577 temp_filename_length
- 1);
5578 obstack_grow (&obstack
, temp_filename
,
5579 temp_filename_length
);
5581 delete_this_arg
= 0;
5587 /* See if we already have an association of %g/%u/%U and
5589 for (t
= temp_names
; t
; t
= t
->next
)
5590 if (t
->length
== suffix_length
5591 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5592 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5595 /* Make a new association if needed. %u and %j
5597 if (t
== 0 || c
== 'u' || c
== 'j')
5601 t
= XNEW (struct temp_name
);
5602 t
->next
= temp_names
;
5605 t
->length
= suffix_length
;
5608 t
->suffix
= saved_suffix
;
5609 saved_suffix
= NULL
;
5612 t
->suffix
= save_string (suffix
, suffix_length
);
5613 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5614 temp_filename
= make_temp_file (t
->suffix
);
5615 temp_filename_length
= strlen (temp_filename
);
5616 t
->filename
= temp_filename
;
5617 t
->filename_length
= temp_filename_length
;
5620 free (saved_suffix
);
5622 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5623 delete_this_arg
= 1;
5631 /* We are going to expand `%i' into `@FILE', where FILE
5632 is a newly-created temporary filename. The filenames
5633 that would usually be expanded in place of %o will be
5634 written to the temporary file. */
5635 if (at_file_supplied
)
5638 for (i
= 0; (int) i
< n_infiles
; i
++)
5639 if (compile_input_file_p (&infiles
[i
]))
5641 store_arg (infiles
[i
].name
, 0, 0);
5642 infiles
[i
].compiled
= true;
5645 if (at_file_supplied
)
5650 obstack_grow (&obstack
, gcc_input_filename
,
5651 input_filename_length
);
5658 struct spec_path_info info
;
5662 do_spec_1 ("-imultilib", 1, NULL
);
5663 /* Make this a separate argument. */
5664 do_spec_1 (" ", 0, NULL
);
5665 do_spec_1 (multilib_dir
, 1, NULL
);
5666 do_spec_1 (" ", 0, NULL
);
5671 do_spec_1 ("-imultiarch", 1, NULL
);
5672 /* Make this a separate argument. */
5673 do_spec_1 (" ", 0, NULL
);
5674 do_spec_1 (multiarch_dir
, 1, NULL
);
5675 do_spec_1 (" ", 0, NULL
);
5678 if (gcc_exec_prefix
)
5680 do_spec_1 ("-iprefix", 1, NULL
);
5681 /* Make this a separate argument. */
5682 do_spec_1 (" ", 0, NULL
);
5683 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5684 do_spec_1 (" ", 0, NULL
);
5687 if (target_system_root_changed
||
5688 (target_system_root
&& target_sysroot_hdrs_suffix
))
5690 do_spec_1 ("-isysroot", 1, NULL
);
5691 /* Make this a separate argument. */
5692 do_spec_1 (" ", 0, NULL
);
5693 do_spec_1 (target_system_root
, 1, NULL
);
5694 if (target_sysroot_hdrs_suffix
)
5695 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5696 do_spec_1 (" ", 0, NULL
);
5699 info
.option
= "-isystem";
5700 info
.append
= "include";
5701 info
.append_len
= strlen (info
.append
);
5702 info
.omit_relative
= false;
5703 info
.separate_options
= true;
5705 for_each_path (&include_prefixes
, false, info
.append_len
,
5708 info
.append
= "include-fixed";
5709 if (*sysroot_hdrs_suffix_spec
)
5710 info
.append
= concat (info
.append
, dir_separator_str
,
5711 multilib_dir
, NULL
);
5712 info
.append_len
= strlen (info
.append
);
5713 for_each_path (&include_prefixes
, false, info
.append_len
,
5719 /* We are going to expand `%o' into `@FILE', where FILE
5720 is a newly-created temporary filename. The filenames
5721 that would usually be expanded in place of %o will be
5722 written to the temporary file. */
5723 if (at_file_supplied
)
5726 for (i
= 0; i
< n_infiles
+ lang_specific_extra_outfiles
; i
++)
5728 store_arg (outfiles
[i
], 0, 0);
5730 if (at_file_supplied
)
5735 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5740 this_is_library_file
= 1;
5744 this_is_linker_script
= 1;
5748 outfiles
[input_file_number
] = NULL
;
5752 this_is_output_file
= 1;
5757 unsigned int cur_index
= argbuf
.length ();
5758 /* Handle the {...} following the %W. */
5760 fatal_error (input_location
,
5761 "spec %qs has invalid %<%%W%c%>", spec
, *p
);
5762 p
= handle_braces (p
+ 1);
5766 /* If any args were output, mark the last one for deletion
5768 if (argbuf
.length () != cur_index
)
5769 record_temp_file (argbuf
.last (), 0, 1);
5774 /* Handle the {...} following the %@. */
5776 fatal_error (input_location
,
5777 "spec %qs has invalid %<%%@%c%>", spec
, *p
);
5778 if (at_file_supplied
)
5780 p
= handle_braces (p
+ 1);
5781 if (at_file_supplied
)
5787 /* %x{OPTION} records OPTION for %X to output. */
5795 /* Skip past the option value and make a copy. */
5797 fatal_error (input_location
,
5798 "spec %qs has invalid %<%%x%c%>", spec
, *p
);
5801 string
= save_string (p1
+ 1, p
- p1
- 2);
5803 /* See if we already recorded this option. */
5804 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5805 if (! strcmp (string
, opt
))
5811 /* This option is new; add it. */
5812 add_linker_option (string
, strlen (string
));
5817 /* Dump out the options accumulated previously using %x. */
5819 do_specs_vec (linker_options
);
5822 /* Dump out the options accumulated previously using -Wa,. */
5824 do_specs_vec (assembler_options
);
5827 /* Dump out the options accumulated previously using -Wp,. */
5829 do_specs_vec (preprocessor_options
);
5832 /* Here are digits and numbers that just process
5833 a certain constant string as a spec. */
5836 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5842 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5848 value
= do_spec_1 (asm_spec
, 0, NULL
);
5854 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5861 const char *const spec
5862 = (input_file_compiler
->cpp_spec
5863 ? input_file_compiler
->cpp_spec
5865 value
= do_spec_1 (spec
, 0, NULL
);
5872 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5878 value
= do_spec_1 (link_spec
, 0, NULL
);
5884 value
= do_spec_1 (lib_spec
, 0, NULL
);
5890 if (multilib_os_dir
== NULL
)
5891 obstack_1grow (&obstack
, '.');
5893 obstack_grow (&obstack
, multilib_os_dir
,
5894 strlen (multilib_os_dir
));
5898 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5904 /* We assume there is a directory
5905 separator at the end of this string. */
5906 if (target_system_root
)
5908 obstack_grow (&obstack
, target_system_root
,
5909 strlen (target_system_root
));
5910 if (target_sysroot_suffix
)
5911 obstack_grow (&obstack
, target_sysroot_suffix
,
5912 strlen (target_sysroot_suffix
));
5917 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5922 /* Here we define characters other than letters and digits. */
5925 p
= handle_braces (p
);
5931 p
= handle_spec_function (p
, NULL
, soft_matched_part
);
5937 obstack_1grow (&obstack
, '%');
5944 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5946 suffix_subst
= save_string (p
- 1, len
+ 1);
5951 /* Henceforth ignore the option(s) matching the pattern
5957 int have_wildcard
= 0;
5962 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5964 switch_option
= SWITCH_IGNORE
;
5966 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5969 if (p
[len
-1] == '*')
5972 for (i
= 0; i
< n_switches
; i
++)
5973 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5974 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5976 switches
[i
].live_cond
|= switch_option
;
5977 /* User switch be validated from validate_all_switches.
5978 when the definition is seen from the spec file.
5979 If not defined anywhere, will be rejected. */
5980 if (switches
[i
].known
)
5981 switches
[i
].validated
= true;
5989 if (soft_matched_part
)
5991 if (soft_matched_part
[0])
5992 do_spec_1 (soft_matched_part
, 1, NULL
);
5993 /* Only insert a space after the substitution if it is at the
5994 end of the current sequence. So if:
5996 "%{foo=*:bar%*}%{foo=*:one%*two}"
5998 matches -foo=hello then it will produce:
6000 barhello onehellotwo
6002 if (*p
== 0 || *p
== '}')
6003 do_spec_1 (" ", 0, NULL
);
6006 /* Catch the case where a spec string contains something like
6007 '%{foo:%*}'. i.e. there is no * in the pattern on the left
6008 hand side of the :. */
6009 error ("spec failure: %<%%*%> has not been initialized by pattern match");
6012 /* Process a string found as the value of a spec given by name.
6013 This feature allows individual machine descriptions
6014 to add and use their own specs. */
6017 const char *name
= p
;
6018 struct spec_list
*sl
;
6021 /* The string after the S/P is the name of a spec that is to be
6023 while (*p
&& *p
!= ')')
6026 /* See if it's in the list. */
6027 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
6028 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
6030 name
= *(sl
->ptr_spec
);
6032 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
6040 value
= do_spec_1 (name
, 0, NULL
);
6045 /* Discard the closing paren. */
6052 error ("spec failure: unrecognized spec option %qc", c
);
6058 /* Backslash: treat next character as ordinary. */
6063 /* Ordinary character: put it into the current argument. */
6064 obstack_1grow (&obstack
, c
);
6068 /* End of string. If we are processing a spec function, we need to
6069 end any pending argument. */
6070 if (processing_spec_function
)
6076 /* Look up a spec function. */
6078 static const struct spec_function
*
6079 lookup_spec_function (const char *name
)
6081 const struct spec_function
*sf
;
6083 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
6084 if (strcmp (sf
->name
, name
) == 0)
6090 /* Evaluate a spec function. */
6093 eval_spec_function (const char *func
, const char *args
,
6094 const char *soft_matched_part
)
6096 const struct spec_function
*sf
;
6097 const char *funcval
;
6099 /* Saved spec processing context. */
6100 vec
<const_char_p
> save_argbuf
;
6103 int save_delete_this_arg
;
6104 int save_this_is_output_file
;
6105 int save_this_is_library_file
;
6106 int save_input_from_pipe
;
6107 int save_this_is_linker_script
;
6108 const char *save_suffix_subst
;
6110 int save_growing_size
;
6111 void *save_growing_value
= NULL
;
6113 sf
= lookup_spec_function (func
);
6115 fatal_error (input_location
, "unknown spec function %qs", func
);
6117 /* Push the spec processing context. */
6118 save_argbuf
= argbuf
;
6120 save_arg_going
= arg_going
;
6121 save_delete_this_arg
= delete_this_arg
;
6122 save_this_is_output_file
= this_is_output_file
;
6123 save_this_is_library_file
= this_is_library_file
;
6124 save_this_is_linker_script
= this_is_linker_script
;
6125 save_input_from_pipe
= input_from_pipe
;
6126 save_suffix_subst
= suffix_subst
;
6128 /* If we have some object growing now, finalize it so the args and function
6129 eval proceed from a cleared context. This is needed to prevent the first
6130 constructed arg from mistakenly including the growing value. We'll push
6131 this value back on the obstack once the function evaluation is done, to
6132 restore a consistent processing context for our caller. This is fine as
6133 the address of growing objects isn't guaranteed to remain stable until
6134 they are finalized, and we expect this situation to be rare enough for
6135 the extra copy not to be an issue. */
6136 save_growing_size
= obstack_object_size (&obstack
);
6137 if (save_growing_size
> 0)
6138 save_growing_value
= obstack_finish (&obstack
);
6140 /* Create a new spec processing context, and build the function
6144 if (do_spec_2 (args
, soft_matched_part
) < 0)
6145 fatal_error (input_location
, "error in arguments to spec function %qs",
6148 /* argbuf_index is an index for the next argument to be inserted, and
6149 so contains the count of the args already inserted. */
6151 funcval
= (*sf
->func
) (argbuf
.length (),
6154 /* Pop the spec processing context. */
6156 argbuf
= save_argbuf
;
6158 arg_going
= save_arg_going
;
6159 delete_this_arg
= save_delete_this_arg
;
6160 this_is_output_file
= save_this_is_output_file
;
6161 this_is_library_file
= save_this_is_library_file
;
6162 this_is_linker_script
= save_this_is_linker_script
;
6163 input_from_pipe
= save_input_from_pipe
;
6164 suffix_subst
= save_suffix_subst
;
6166 if (save_growing_size
> 0)
6167 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
6172 /* Handle a spec function call of the form:
6176 ARGS is processed as a spec in a separate context and split into an
6177 argument vector in the normal fashion. The function returns a string
6178 containing a spec which we then process in the caller's context, or
6179 NULL if no processing is required.
6181 If RETVAL_NONNULL is not NULL, then store a bool whether function
6184 SOFT_MATCHED_PART holds the current value of a matched * pattern, which
6185 may be re-expanded with a %* as part of the function arguments. */
6188 handle_spec_function (const char *p
, bool *retval_nonnull
,
6189 const char *soft_matched_part
)
6192 const char *endp
, *funcval
;
6195 processing_spec_function
++;
6197 /* Get the function name. */
6198 for (endp
= p
; *endp
!= '\0'; endp
++)
6200 if (*endp
== '(') /* ) */
6202 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6203 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6204 fatal_error (input_location
, "malformed spec function name");
6206 if (*endp
!= '(') /* ) */
6207 fatal_error (input_location
, "no arguments for spec function");
6208 func
= save_string (p
, endp
- p
);
6211 /* Get the arguments. */
6212 for (count
= 0; *endp
!= '\0'; endp
++)
6221 else if (*endp
== '(') /* ) */
6226 fatal_error (input_location
, "malformed spec function arguments");
6227 args
= save_string (p
, endp
- p
);
6230 /* p now points to just past the end of the spec function expression. */
6232 funcval
= eval_spec_function (func
, args
, soft_matched_part
);
6233 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6236 *retval_nonnull
= funcval
!= NULL
;
6241 processing_spec_function
--;
6246 /* Inline subroutine of handle_braces. Returns true if the current
6247 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6249 input_suffix_matches (const char *atom
, const char *end_atom
)
6251 return (input_suffix
6252 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6253 && input_suffix
[end_atom
- atom
] == '\0');
6256 /* Subroutine of handle_braces. Returns true if the current
6257 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6259 input_spec_matches (const char *atom
, const char *end_atom
)
6261 return (input_file_compiler
6262 && input_file_compiler
->suffix
6263 && input_file_compiler
->suffix
[0] != '\0'
6264 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6266 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6269 /* Subroutine of handle_braces. Returns true if a switch
6270 matching the atom bracketed by ATOM and END_ATOM appeared on the
6273 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6276 int len
= end_atom
- atom
;
6277 int plen
= starred
? len
: -1;
6279 for (i
= 0; i
< n_switches
; i
++)
6280 if (!strncmp (switches
[i
].part1
, atom
, len
)
6281 && (starred
|| switches
[i
].part1
[len
] == '\0')
6282 && check_live_switch (i
, plen
))
6285 /* Check if a switch with separated form matching the atom.
6286 We check -D and -U switches. */
6287 else if (switches
[i
].args
!= 0)
6289 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
6290 && *switches
[i
].part1
== atom
[0])
6292 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
6293 && (starred
|| (switches
[i
].part1
[1] == '\0'
6294 && switches
[i
].args
[0][len
- 1] == '\0'))
6295 && check_live_switch (i
, (starred
? 1 : -1)))
6303 /* Inline subroutine of handle_braces. Mark all of the switches which
6304 match ATOM (extends to END_ATOM; STARRED indicates whether there
6305 was a star after the atom) for later processing. */
6307 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6310 int len
= end_atom
- atom
;
6311 int plen
= starred
? len
: -1;
6313 for (i
= 0; i
< n_switches
; i
++)
6314 if (!strncmp (switches
[i
].part1
, atom
, len
)
6315 && (starred
|| switches
[i
].part1
[len
] == '\0')
6316 && check_live_switch (i
, plen
))
6317 switches
[i
].ordering
= 1;
6320 /* Inline subroutine of handle_braces. Process all the currently
6321 marked switches through give_switch, and clear the marks. */
6323 process_marked_switches (void)
6327 for (i
= 0; i
< n_switches
; i
++)
6328 if (switches
[i
].ordering
== 1)
6330 switches
[i
].ordering
= 0;
6335 /* Handle a %{ ... } construct. P points just inside the leading {.
6336 Returns a pointer one past the end of the brace block, or 0
6337 if we call do_spec_1 and that returns -1. */
6340 handle_braces (const char *p
)
6342 const char *atom
, *end_atom
;
6343 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6344 char *esc_buf
= NULL
, *d_esc_buf
= NULL
;
6346 const char *orig
= p
;
6354 bool a_must_be_last
= false;
6355 bool ordered_set
= false;
6356 bool disjunct_set
= false;
6357 bool disj_matched
= false;
6358 bool disj_starred
= true;
6359 bool n_way_choice
= false;
6360 bool n_way_matched
= false;
6362 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6369 /* Scan one "atom" (S in the description above of %{}, possibly
6370 with '!', '.', '@', ',', or '*' modifiers). */
6372 a_is_suffix
= false;
6373 a_is_starred
= false;
6374 a_is_negated
= false;
6375 a_is_spectype
= false;
6379 p
++, a_is_negated
= true;
6382 if (*p
== '%' && p
[1] == ':')
6386 p
= handle_spec_function (p
+ 2, &a_matched
, NULL
);
6391 p
++, a_is_suffix
= true;
6393 p
++, a_is_spectype
= true;
6397 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6398 || *p
== ',' || *p
== '.' || *p
== '@' || *p
== '\\')
6404 fatal_error (input_location
,
6405 "braced spec %qs ends in escape", orig
);
6417 if (esc_buf
&& esc_buf
!= d_esc_buf
)
6420 ep
= esc_buf
= (char *) xmalloc (end_atom
- atom
- esc
+ 1);
6421 for (ap
= atom
; ap
!= end_atom
; ap
++, ep
++)
6433 p
++, a_is_starred
= 1;
6440 /* Substitute the switch(es) indicated by the current atom. */
6442 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6443 || a_is_spectype
|| atom
== end_atom
)
6446 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6449 process_marked_switches ();
6453 /* Substitute some text if the current atom appears as a switch
6455 disjunct_set
= true;
6459 if (atom
&& atom
== end_atom
)
6461 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6462 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6466 /* An empty term may appear as the last choice of an
6467 N-way choice set; it means "otherwise". */
6468 a_must_be_last
= true;
6469 disj_matched
= !n_way_matched
;
6470 disj_starred
= false;
6474 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6478 disj_starred
= false;
6480 /* Don't bother testing this atom if we already have a
6482 if (!disj_matched
&& !n_way_matched
)
6485 /* a_matched is already set by handle_spec_function. */;
6486 else if (a_is_suffix
)
6487 a_matched
= input_suffix_matches (atom
, end_atom
);
6488 else if (a_is_spectype
)
6489 a_matched
= input_spec_matches (atom
, end_atom
);
6491 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6493 if (a_matched
!= a_is_negated
)
6495 disj_matched
= true;
6497 d_end_atom
= end_atom
;
6498 d_esc_buf
= esc_buf
;
6505 /* Found the body, that is, the text to substitute if the
6506 current disjunction matches. */
6507 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6508 disj_matched
&& !n_way_matched
);
6512 /* If we have an N-way choice, reset state for the next
6516 n_way_choice
= true;
6517 n_way_matched
|= disj_matched
;
6518 disj_matched
= false;
6519 disj_starred
= true;
6520 d_atom
= d_end_atom
= NULL
;
6529 while (*p
++ != '}');
6532 if (d_esc_buf
&& d_esc_buf
!= esc_buf
)
6540 fatal_error (input_location
, "braced spec %qs is invalid at %qc", orig
, *p
);
6545 /* Subroutine of handle_braces. Scan and process a brace substitution body
6546 (X in the description of %{} syntax). P points one past the colon;
6547 ATOM and END_ATOM bracket the first atom which was found to be true
6548 (present) in the current disjunction; STARRED indicates whether all
6549 the atoms in the current disjunction were starred (for syntax validation);
6550 MATCHED indicates whether the disjunction matched or not, and therefore
6551 whether or not the body is to be processed through do_spec_1 or just
6552 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6556 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6557 int starred
, int matched
)
6559 const char *body
, *end_body
;
6560 unsigned int nesting_level
;
6561 bool have_subst
= false;
6563 /* Locate the closing } or ;, honoring nested braces.
6564 Trim trailing whitespace. */
6573 if (!--nesting_level
)
6576 else if (*p
== ';' && nesting_level
== 1)
6578 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6580 else if (*p
== '\0')
6586 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6589 if (have_subst
&& !starred
)
6594 /* Copy the substitution body to permanent storage and execute it.
6595 If have_subst is false, this is a simple matter of running the
6596 body through do_spec_1... */
6597 char *string
= save_string (body
, end_body
- body
);
6600 if (do_spec_1 (string
, 0, NULL
) < 0)
6608 /* ... but if have_subst is true, we have to process the
6609 body once for each matching switch, with %* set to the
6610 variant part of the switch. */
6611 unsigned int hard_match_len
= end_atom
- atom
;
6614 for (i
= 0; i
< n_switches
; i
++)
6615 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6616 && check_live_switch (i
, hard_match_len
))
6618 if (do_spec_1 (string
, 0,
6619 &switches
[i
].part1
[hard_match_len
]) < 0)
6624 /* Pass any arguments this switch has. */
6626 suffix_subst
= NULL
;
6635 fatal_error (input_location
, "braced spec body %qs is invalid", body
);
6638 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6639 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6640 spec, or -1 if either exact match or %* is used.
6642 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
6643 whose value does not begin with "no-" is obsoleted by the same value
6644 with the "no-", similarly for a switch with the "no-" prefix. */
6647 check_live_switch (int switchnum
, int prefix_length
)
6649 const char *name
= switches
[switchnum
].part1
;
6652 /* If we already processed this switch and determined if it was
6653 live or not, return our past determination. */
6654 if (switches
[switchnum
].live_cond
!= 0)
6655 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6656 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6657 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6660 /* In the common case of {<at-most-one-letter>*}, a negating
6661 switch would always match, so ignore that case. We will just
6662 send the conflicting switches to the compiler phase. */
6663 if (prefix_length
>= 0 && prefix_length
<= 1)
6666 /* Now search for duplicate in a manner that depends on the name. */
6670 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6671 if (switches
[i
].part1
[0] == 'O')
6673 switches
[switchnum
].validated
= true;
6674 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6679 case 'W': case 'f': case 'm': case 'g':
6680 if (! strncmp (name
+ 1, "no-", 3))
6682 /* We have Xno-YYY, search for XYYY. */
6683 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6684 if (switches
[i
].part1
[0] == name
[0]
6685 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6687 /* --specs are validated with the validate_switches mechanism. */
6688 if (switches
[switchnum
].known
)
6689 switches
[switchnum
].validated
= true;
6690 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6696 /* We have XYYY, search for Xno-YYY. */
6697 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6698 if (switches
[i
].part1
[0] == name
[0]
6699 && switches
[i
].part1
[1] == 'n'
6700 && switches
[i
].part1
[2] == 'o'
6701 && switches
[i
].part1
[3] == '-'
6702 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6704 /* --specs are validated with the validate_switches mechanism. */
6705 if (switches
[switchnum
].known
)
6706 switches
[switchnum
].validated
= true;
6707 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6714 /* Otherwise the switch is live. */
6715 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6719 /* Pass a switch to the current accumulating command
6720 in the same form that we received it.
6721 SWITCHNUM identifies the switch; it is an index into
6722 the vector of switches gcc received, which is `switches'.
6723 This cannot fail since it never finishes a command line.
6725 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6728 give_switch (int switchnum
, int omit_first_word
)
6730 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6733 if (!omit_first_word
)
6735 do_spec_1 ("-", 0, NULL
);
6736 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6739 if (switches
[switchnum
].args
!= 0)
6742 for (p
= switches
[switchnum
].args
; *p
; p
++)
6744 const char *arg
= *p
;
6746 do_spec_1 (" ", 0, NULL
);
6749 unsigned length
= strlen (arg
);
6752 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6753 if (arg
[length
] == '.')
6755 (CONST_CAST (char *, arg
))[length
] = 0;
6759 do_spec_1 (arg
, 1, NULL
);
6761 (CONST_CAST (char *, arg
))[length
] = '.';
6762 do_spec_1 (suffix_subst
, 1, NULL
);
6765 do_spec_1 (arg
, 1, NULL
);
6769 do_spec_1 (" ", 0, NULL
);
6770 switches
[switchnum
].validated
= true;
6773 /* Print GCC configuration (e.g. version, thread model, target,
6774 configuration_arguments) to a given FILE. */
6777 print_configuration (FILE *file
)
6782 fnotice (file
, "Target: %s\n", spec_machine
);
6783 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
6785 #ifdef THREAD_MODEL_SPEC
6786 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6787 but there's no point in doing all this processing just to get
6788 thread_model back. */
6789 obstack_init (&obstack
);
6790 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6791 obstack_1grow (&obstack
, '\0');
6792 thrmod
= XOBFINISH (&obstack
, const char *);
6794 thrmod
= thread_model
;
6797 fnotice (file
, "Thread model: %s\n", thrmod
);
6798 fnotice (file
, "Supported LTO compression algorithms: zlib");
6800 fnotice (file
, " zstd");
6802 fnotice (file
, "\n");
6804 /* compiler_version is truncated at the first space when initialized
6805 from version string, so truncate version_string at the first space
6806 before comparing. */
6807 for (n
= 0; version_string
[n
]; n
++)
6808 if (version_string
[n
] == ' ')
6811 if (! strncmp (version_string
, compiler_version
, n
)
6812 && compiler_version
[n
] == 0)
6813 fnotice (file
, "gcc version %s %s\n", version_string
,
6816 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n",
6817 version_string
, pkgversion_string
, compiler_version
);
6821 #define RETRY_ICE_ATTEMPTS 3
6823 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
6826 files_equal_p (char *file1
, char *file2
)
6828 struct stat st1
, st2
;
6831 const int bufsize
= 8192;
6832 char *buf
= XNEWVEC (char, bufsize
);
6834 fd1
= open (file1
, O_RDONLY
);
6835 fd2
= open (file2
, O_RDONLY
);
6837 if (fd1
< 0 || fd2
< 0)
6840 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
6843 if (st1
.st_size
!= st2
.st_size
)
6846 for (n
= st1
.st_size
; n
; n
-= len
)
6849 if ((int) len
> bufsize
/ 2)
6852 if (read (fd1
, buf
, len
) != (int) len
6853 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
6858 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
6875 /* Check that compiler's output doesn't differ across runs.
6876 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
6877 stdout and stderr for each compiler run. Return true if all of
6878 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
6881 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
6884 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
6886 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
6887 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
6889 fnotice (stderr
, "The bug is not reproducible, so it is"
6890 " likely a hardware or OS problem.\n");
6894 return i
== RETRY_ICE_ATTEMPTS
- 2;
6897 enum attempt_status
{
6898 ATTEMPT_STATUS_FAIL_TO_RUN
,
6899 ATTEMPT_STATUS_SUCCESS
,
6904 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
6905 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
6906 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
6907 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
6908 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
6909 ATTEMPT_STATUS_SUCCESS otherwise. */
6911 static enum attempt_status
6912 run_attempt (const char **new_argv
, const char *out_temp
,
6913 const char *err_temp
, int emit_system_info
, int append
)
6916 if (emit_system_info
)
6918 FILE *file_out
= fopen (err_temp
, "a");
6919 print_configuration (file_out
);
6920 fputs ("\n", file_out
);
6926 struct pex_obj
*pex
;
6928 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
6929 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
6932 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
6934 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
6936 fatal_error (input_location
, "%<pex_init%> failed: %m");
6938 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
6939 CONST_CAST2 (char *const *, const char **, &new_argv
[1]),
6940 out_temp
, err_temp
, &err
);
6944 fatal_error (input_location
,
6945 err
? G_ ("cannot execute %qs: %s: %m")
6946 : G_ ("cannot execute %qs: %s"),
6947 new_argv
[0], errmsg
);
6950 if (!pex_get_status (pex
, 1, &exit_status
))
6953 switch (WEXITSTATUS (exit_status
))
6956 status
= ATTEMPT_STATUS_ICE
;
6959 case SUCCESS_EXIT_CODE
:
6960 status
= ATTEMPT_STATUS_SUCCESS
;
6972 /* This routine reads lines from IN file, adds C++ style comments
6973 at the begining of each line and writes result into OUT. */
6976 insert_comments (const char *file_in
, const char *file_out
)
6978 FILE *in
= fopen (file_in
, "rb");
6979 FILE *out
= fopen (file_out
, "wb");
6982 bool add_comment
= true;
6983 while (fgets (line
, sizeof (line
), in
))
6988 add_comment
= strchr (line
, '\n') != NULL
;
6995 /* This routine adds preprocessed source code into the given ERR_FILE.
6996 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
6997 add information in report file. RUN_ATTEMPT should return
6998 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
7001 do_report_bug (const char **new_argv
, const int nargs
,
7002 char **out_file
, char **err_file
)
7005 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
7008 write (fd
, "\n//", 3);
7009 for (i
= 0; i
< nargs
; i
++)
7012 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
7014 write (fd
, "\n\n", 2);
7016 new_argv
[nargs
] = "-E";
7017 new_argv
[nargs
+ 1] = NULL
;
7019 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
7021 if (status
== ATTEMPT_STATUS_SUCCESS
)
7023 fnotice (stderr
, "Preprocessed source stored into %s file,"
7024 " please attach this to your bugreport.\n", *out_file
);
7025 /* Make sure it is not deleted. */
7031 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
7032 containing GCC configuration, backtrace, compiler's command line options
7033 and preprocessed source code. */
7036 try_generate_repro (const char **argv
)
7038 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
7039 const char **new_argv
;
7040 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
7041 char **temp_stdout_files
= &temp_files
[0];
7042 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
7044 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
7047 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
7048 /* Only retry compiler ICEs, not preprocessor ones. */
7049 if (! strcmp (argv
[nargs
], "-E"))
7051 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
7058 /* If the compiler is going to output any time information,
7059 it might varry between invocations. */
7060 else if (! strcmp (argv
[nargs
], "-quiet"))
7062 else if (! strcmp (argv
[nargs
], "-ftime-report"))
7065 if (out_arg
== -1 || !quiet
)
7068 memset (temp_files
, '\0', sizeof (temp_files
));
7069 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
7070 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
7071 new_argv
[nargs
++] = "-frandom-seed=0";
7072 new_argv
[nargs
++] = "-fdump-noaddr";
7073 new_argv
[nargs
] = NULL
;
7074 if (new_argv
[out_arg
][2] == '\0')
7075 new_argv
[out_arg
+ 1] = "-";
7077 new_argv
[out_arg
] = "-o-";
7080 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
7082 int emit_system_info
= 0;
7084 temp_stdout_files
[attempt
] = make_temp_file (".out");
7085 temp_stderr_files
[attempt
] = make_temp_file (".err");
7087 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
7090 emit_system_info
= 1;
7093 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
7094 temp_stderr_files
[attempt
], emit_system_info
,
7097 if (status
!= ATTEMPT_STATUS_ICE
)
7099 fnotice (stderr
, "The bug is not reproducible, so it is"
7100 " likely a hardware or OS problem.\n");
7105 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
7109 /* Insert commented out backtrace into report file. */
7110 char **stderr_commented
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
7111 insert_comments (temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
7114 /* In final attempt we append compiler options and preprocesssed code to last
7115 generated .out file with configuration and backtrace. */
7116 char **err
= &temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1];
7117 do_report_bug (new_argv
, nargs
, stderr_commented
, err
);
7121 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
7124 unlink (temp_stdout_files
[i
]);
7125 free (temp_stdout_files
[i
]);
7129 /* Search for a file named NAME trying various prefixes including the
7130 user's -B prefix and some standard ones.
7131 Return the absolute file name found. If nothing is found, return NAME. */
7134 find_file (const char *name
)
7136 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
7137 return newname
? newname
: name
;
7140 /* Determine whether a directory exists. If LINKER, return 0 for
7141 certain fixed names not needed by the linker. */
7144 is_directory (const char *path1
, bool linker
)
7151 /* Ensure the string ends with "/.". The resulting path will be a
7152 directory even if the given path is a symbolic link. */
7153 len1
= strlen (path1
);
7154 path
= (char *) alloca (3 + len1
);
7155 memcpy (path
, path1
, len1
);
7157 if (!IS_DIR_SEPARATOR (cp
[-1]))
7158 *cp
++ = DIR_SEPARATOR
;
7162 /* Exclude directories that the linker is known to search. */
7164 && IS_DIR_SEPARATOR (path
[0])
7166 && filename_ncmp (path
+ 1, "lib", 3) == 0)
7168 && filename_ncmp (path
+ 1, "usr", 3) == 0
7169 && IS_DIR_SEPARATOR (path
[4])
7170 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
7173 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
7176 /* Set up the various global variables to indicate that we're processing
7177 the input file named FILENAME. */
7180 set_input (const char *filename
)
7184 gcc_input_filename
= filename
;
7185 input_filename_length
= strlen (gcc_input_filename
);
7186 input_basename
= lbasename (gcc_input_filename
);
7188 /* Find a suffix starting with the last period,
7189 and set basename_length to exclude that suffix. */
7190 basename_length
= strlen (input_basename
);
7191 suffixed_basename_length
= basename_length
;
7192 p
= input_basename
+ basename_length
;
7193 while (p
!= input_basename
&& *p
!= '.')
7195 if (*p
== '.' && p
!= input_basename
)
7197 basename_length
= p
- input_basename
;
7198 input_suffix
= p
+ 1;
7203 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
7204 we will need to do a stat on the gcc_input_filename. The
7205 INPUT_STAT_SET signals that the stat is needed. */
7209 /* On fatal signals, delete all the temporary files. */
7212 fatal_signal (int signum
)
7214 signal (signum
, SIG_DFL
);
7215 delete_failure_queue ();
7216 delete_temp_files ();
7217 /* Get the same signal again, this time not handled,
7218 so its normal effect occurs. */
7219 kill (getpid (), signum
);
7222 /* Compare the contents of the two files named CMPFILE[0] and
7223 CMPFILE[1]. Return zero if they're identical, nonzero
7227 compare_files (char *cmpfile
[])
7230 FILE *temp
[2] = { NULL
, NULL
};
7236 void *map
[2] = { NULL
, NULL
};
7238 for (i
= 0; i
< 2; i
++)
7242 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
7244 error ("%s: could not determine length of compare-debug file %s",
7245 gcc_input_filename
, cmpfile
[i
]);
7250 length
[i
] = st
.st_size
;
7253 if (!ret
&& length
[0] != length
[1])
7255 error ("%s: %<-fcompare-debug%> failure (length)", gcc_input_filename
);
7260 for (i
= 0; i
< 2; i
++)
7262 int fd
= open (cmpfile
[i
], O_RDONLY
);
7265 error ("%s: could not open compare-debug file %s",
7266 gcc_input_filename
, cmpfile
[i
]);
7271 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
7274 if (map
[i
] == (void *) MAP_FAILED
)
7283 if (memcmp (map
[0], map
[1], length
[0]) != 0)
7285 error ("%s: %<-fcompare-debug%> failure", gcc_input_filename
);
7290 for (i
= 0; i
< 2; i
++)
7292 munmap ((caddr_t
) map
[i
], length
[i
]);
7301 for (i
= 0; i
< 2; i
++)
7303 temp
[i
] = fopen (cmpfile
[i
], "r");
7306 error ("%s: could not open compare-debug file %s",
7307 gcc_input_filename
, cmpfile
[i
]);
7313 if (!ret
&& temp
[0] && temp
[1])
7317 c0
= fgetc (temp
[0]);
7318 c1
= fgetc (temp
[1]);
7322 error ("%s: %<-fcompare-debug%> failure",
7323 gcc_input_filename
);
7332 for (i
= 1; i
>= 0; i
--)
7341 driver::driver (bool can_finalize
, bool debug
) :
7342 explicit_link_files (NULL
),
7343 decoded_options (NULL
)
7345 env
.init (can_finalize
, debug
);
7350 XDELETEVEC (explicit_link_files
);
7351 XDELETEVEC (decoded_options
);
7354 /* driver::main is implemented as a series of driver:: method calls. */
7357 driver::main (int argc
, char **argv
)
7361 set_progname (argv
[0]);
7362 expand_at_files (&argc
, &argv
);
7363 decode_argv (argc
, const_cast <const char **> (argv
));
7364 global_initializations ();
7365 build_multilib_strings ();
7367 putenv_COLLECT_GCC (argv
[0]);
7368 maybe_putenv_COLLECT_LTO_WRAPPER ();
7369 maybe_putenv_OFFLOAD_TARGETS ();
7370 handle_unrecognized_options ();
7374 m_option_proposer
.suggest_completion (completion
);
7378 if (!maybe_print_and_exit ())
7381 early_exit
= prepare_infiles ();
7383 return get_exit_code ();
7385 do_spec_on_infiles ();
7386 maybe_run_linker (argv
[0]);
7388 return get_exit_code ();
7391 /* Locate the final component of argv[0] after any leading path, and set
7392 the program name accordingly. */
7395 driver::set_progname (const char *argv0
) const
7397 const char *p
= argv0
+ strlen (argv0
);
7398 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
7402 xmalloc_set_program_name (progname
);
7405 /* Expand any @ files within the command-line args,
7406 setting at_file_supplied if any were expanded. */
7409 driver::expand_at_files (int *argc
, char ***argv
) const
7411 char **old_argv
= *argv
;
7413 expandargv (argc
, argv
);
7415 /* Determine if any expansions were made. */
7416 if (*argv
!= old_argv
)
7417 at_file_supplied
= true;
7420 /* Decode the command-line arguments from argc/argv into the
7421 decoded_options array. */
7424 driver::decode_argv (int argc
, const char **argv
)
7426 /* Register the language-independent parameters. */
7427 global_init_params ();
7430 init_opts_obstack ();
7431 init_options_struct (&global_options
, &global_options_set
);
7433 decode_cmdline_options_to_array (argc
, argv
,
7435 &decoded_options
, &decoded_options_count
);
7438 /* Perform various initializations and setup. */
7441 driver::global_initializations ()
7443 /* Unlock the stdio streams. */
7444 unlock_std_streams ();
7446 gcc_init_libintl ();
7448 diagnostic_initialize (global_dc
, 0);
7449 diagnostic_color_init (global_dc
);
7450 diagnostic_urls_init (global_dc
);
7452 #ifdef GCC_DRIVER_HOST_INITIALIZATION
7453 /* Perform host dependent initialization when needed. */
7454 GCC_DRIVER_HOST_INITIALIZATION
;
7457 if (atexit (delete_temp_files
) != 0)
7458 fatal_error (input_location
, "atexit failed");
7460 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
7461 signal (SIGINT
, fatal_signal
);
7463 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
7464 signal (SIGHUP
, fatal_signal
);
7466 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
7467 signal (SIGTERM
, fatal_signal
);
7469 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
7470 signal (SIGPIPE
, fatal_signal
);
7473 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
7474 receive the signal. A different setting is inheritable */
7475 signal (SIGCHLD
, SIG_DFL
);
7478 /* Parsing and gimplification sometimes need quite large stack.
7479 Increase stack size limits if possible. */
7480 stack_limit_increase (64 * 1024 * 1024);
7482 /* Allocate the argument vector. */
7485 obstack_init (&obstack
);
7488 /* Build multilib_select, et. al from the separate lines that make up each
7489 multilib selection. */
7492 driver::build_multilib_strings () const
7496 const char *const *q
= multilib_raw
;
7499 obstack_init (&multilib_obstack
);
7500 while ((p
= *q
++) != (char *) 0)
7501 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7503 obstack_1grow (&multilib_obstack
, 0);
7504 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
7506 q
= multilib_matches_raw
;
7507 while ((p
= *q
++) != (char *) 0)
7508 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7510 obstack_1grow (&multilib_obstack
, 0);
7511 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
7513 q
= multilib_exclusions_raw
;
7514 while ((p
= *q
++) != (char *) 0)
7515 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7517 obstack_1grow (&multilib_obstack
, 0);
7518 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
7520 q
= multilib_reuse_raw
;
7521 while ((p
= *q
++) != (char *) 0)
7522 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7524 obstack_1grow (&multilib_obstack
, 0);
7525 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
7528 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
7531 obstack_1grow (&multilib_obstack
, ' ');
7532 obstack_grow (&multilib_obstack
,
7533 multilib_defaults_raw
[i
],
7534 strlen (multilib_defaults_raw
[i
]));
7538 obstack_1grow (&multilib_obstack
, 0);
7539 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
7543 /* Set up the spec-handling machinery. */
7546 driver::set_up_specs () const
7548 const char *spec_machine_suffix
;
7552 #ifdef INIT_ENVIRONMENT
7553 /* Set up any other necessary machine specific environment variables. */
7554 xputenv (INIT_ENVIRONMENT
);
7557 /* Make a table of what switches there are (switches, n_switches).
7558 Make a table of specified input files (infiles, n_infiles).
7559 Decode switches that are handled locally. */
7561 process_command (decoded_options_count
, decoded_options
);
7563 /* Initialize the vector of specs to just the default.
7564 This means one element containing 0s, as a terminator. */
7566 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
7567 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
7568 n_compilers
= n_default_compilers
;
7570 /* Read specs from a file if there is one. */
7572 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
7573 accel_dir_suffix
, dir_separator_str
, NULL
);
7574 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
7576 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
7577 /* Read the specs file unless it is a default one. */
7578 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
7579 read_specs (specs_file
, true, false);
7583 #ifdef ACCEL_COMPILER
7584 spec_machine_suffix
= machine_suffix
;
7586 spec_machine_suffix
= just_machine_suffix
;
7589 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
7590 for any override of as, ld and libraries. */
7591 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
7592 + strlen (spec_machine_suffix
) + sizeof ("specs"));
7593 strcpy (specs_file
, standard_exec_prefix
);
7594 strcat (specs_file
, spec_machine_suffix
);
7595 strcat (specs_file
, "specs");
7596 if (access (specs_file
, R_OK
) == 0)
7597 read_specs (specs_file
, true, false);
7599 /* Process any configure-time defaults specified for the command line
7600 options, via OPTION_DEFAULT_SPECS. */
7601 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
7602 do_option_spec (option_default_specs
[i
].name
,
7603 option_default_specs
[i
].spec
);
7605 /* Process DRIVER_SELF_SPECS, adding any new options to the end
7606 of the command line. */
7608 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
7609 do_self_spec (driver_self_specs
[i
]);
7611 /* If not cross-compiling, look for executables in the standard
7613 if (*cross_compile
== '0')
7615 if (*md_exec_prefix
)
7617 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
7618 PREFIX_PRIORITY_LAST
, 0, 0);
7622 /* Process sysroot_suffix_spec. */
7623 if (*sysroot_suffix_spec
!= 0
7624 && !no_sysroot_suffix
7625 && do_spec_2 (sysroot_suffix_spec
, NULL
) == 0)
7627 if (argbuf
.length () > 1)
7628 error ("spec failure: more than one argument to "
7629 "%<SYSROOT_SUFFIX_SPEC%>");
7630 else if (argbuf
.length () == 1)
7631 target_sysroot_suffix
= xstrdup (argbuf
.last ());
7634 #ifdef HAVE_LD_SYSROOT
7635 /* Pass the --sysroot option to the linker, if it supports that. If
7636 there is a sysroot_suffix_spec, it has already been processed by
7637 this point, so target_system_root really is the system root we
7639 if (target_system_root
)
7641 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7642 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
7643 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
7647 /* Process sysroot_hdrs_suffix_spec. */
7648 if (*sysroot_hdrs_suffix_spec
!= 0
7649 && !no_sysroot_suffix
7650 && do_spec_2 (sysroot_hdrs_suffix_spec
, NULL
) == 0)
7652 if (argbuf
.length () > 1)
7653 error ("spec failure: more than one argument "
7654 "to %<SYSROOT_HEADERS_SUFFIX_SPEC%>");
7655 else if (argbuf
.length () == 1)
7656 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
7659 /* Look for startfiles in the standard places. */
7660 if (*startfile_prefix_spec
!= 0
7661 && do_spec_2 (startfile_prefix_spec
, NULL
) == 0
7662 && do_spec_1 (" ", 0, NULL
) == 0)
7666 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
7667 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
7668 PREFIX_PRIORITY_LAST
, 0, 1);
7670 /* We should eventually get rid of all these and stick to
7671 startfile_prefix_spec exclusively. */
7672 else if (*cross_compile
== '0' || target_system_root
)
7674 if (*md_startfile_prefix
)
7675 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7676 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7678 if (*md_startfile_prefix_1
)
7679 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7680 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7682 /* If standard_startfile_prefix is relative, base it on
7683 standard_exec_prefix. This lets us move the installed tree
7684 as a unit. If GCC_EXEC_PREFIX is defined, base
7685 standard_startfile_prefix on that as well.
7687 If the prefix is relative, only search it for native compilers;
7688 otherwise we will search a directory containing host libraries. */
7689 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7690 add_sysrooted_prefix (&startfile_prefixes
,
7691 standard_startfile_prefix
, "BINUTILS",
7692 PREFIX_PRIORITY_LAST
, 0, 1);
7693 else if (*cross_compile
== '0')
7695 add_prefix (&startfile_prefixes
,
7696 concat (gcc_exec_prefix
7697 ? gcc_exec_prefix
: standard_exec_prefix
,
7699 standard_startfile_prefix
, NULL
),
7700 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7703 /* Sysrooted prefixes are relocated because target_system_root is
7704 also relocated by gcc_exec_prefix. */
7705 if (*standard_startfile_prefix_1
)
7706 add_sysrooted_prefix (&startfile_prefixes
,
7707 standard_startfile_prefix_1
, "BINUTILS",
7708 PREFIX_PRIORITY_LAST
, 0, 1);
7709 if (*standard_startfile_prefix_2
)
7710 add_sysrooted_prefix (&startfile_prefixes
,
7711 standard_startfile_prefix_2
, "BINUTILS",
7712 PREFIX_PRIORITY_LAST
, 0, 1);
7715 /* Process any user specified specs in the order given on the command
7717 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7719 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7721 read_specs (filename
? filename
: uptr
->filename
, false, true);
7724 /* Process any user self specs. */
7726 struct spec_list
*sl
;
7727 for (sl
= specs
; sl
; sl
= sl
->next
)
7728 if (sl
->name_len
== sizeof "self_spec" - 1
7729 && !strcmp (sl
->name
, "self_spec"))
7730 do_self_spec (*sl
->ptr_spec
);
7735 enum save_temps save
;
7737 if (!compare_debug_second
)
7739 n_switches_debug_check
[1] = n_switches
;
7740 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7741 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
7744 do_self_spec ("%:compare-debug-self-opt()");
7745 n_switches_debug_check
[0] = n_switches
;
7746 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
7747 switches_debug_check
[0] = switches
;
7749 n_switches
= n_switches_debug_check
[1];
7750 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7751 switches
= switches_debug_check
[1];
7754 /* Avoid crash when computing %j in this early. */
7755 save
= save_temps_flag
;
7756 save_temps_flag
= SAVE_TEMPS_NONE
;
7758 compare_debug
= -compare_debug
;
7759 do_self_spec ("%:compare-debug-self-opt()");
7761 save_temps_flag
= save
;
7763 if (!compare_debug_second
)
7765 n_switches_debug_check
[1] = n_switches
;
7766 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7767 switches_debug_check
[1] = switches
;
7768 compare_debug
= -compare_debug
;
7769 n_switches
= n_switches_debug_check
[0];
7770 n_switches_alloc
= n_switches_debug_check
[0];
7771 switches
= switches_debug_check
[0];
7776 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7777 if (gcc_exec_prefix
)
7778 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
7779 dir_separator_str
, spec_version
,
7780 accel_dir_suffix
, dir_separator_str
, NULL
);
7782 /* Now we have the specs.
7783 Set the `valid' bits for switches that match anything in any spec. */
7785 validate_all_switches ();
7787 /* Now that we have the switches and the specs, set
7788 the subdirectory based on the options. */
7789 set_multilib_dir ();
7792 /* Set up to remember the pathname of gcc and any options
7793 needed for collect. We use argv[0] instead of progname because
7794 we need the complete pathname. */
7797 driver::putenv_COLLECT_GCC (const char *argv0
) const
7799 obstack_init (&collect_obstack
);
7800 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7801 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
7802 xputenv (XOBFINISH (&collect_obstack
, char *));
7805 /* Set up to remember the pathname of the lto wrapper. */
7808 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
7810 char *lto_wrapper_file
;
7813 lto_wrapper_file
= NULL
;
7815 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
7817 if (lto_wrapper_file
)
7819 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
7820 lto_wrapper_spec
= lto_wrapper_file
;
7821 obstack_init (&collect_obstack
);
7822 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7823 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7824 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7825 strlen (lto_wrapper_spec
) + 1);
7826 xputenv (XOBFINISH (&collect_obstack
, char *));
7831 /* Set up to remember the names of offload targets. */
7834 driver::maybe_putenv_OFFLOAD_TARGETS () const
7836 if (offload_targets
&& offload_targets
[0] != '\0')
7838 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
7839 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
7840 obstack_grow (&collect_obstack
, offload_targets
,
7841 strlen (offload_targets
) + 1);
7842 xputenv (XOBFINISH (&collect_obstack
, char *));
7845 free (offload_targets
);
7846 offload_targets
= NULL
;
7849 /* Reject switches that no pass was interested in. */
7852 driver::handle_unrecognized_options ()
7854 for (size_t i
= 0; (int) i
< n_switches
; i
++)
7855 if (! switches
[i
].validated
)
7857 const char *hint
= m_option_proposer
.suggest_option (switches
[i
].part1
);
7859 error ("unrecognized command-line option %<-%s%>;"
7860 " did you mean %<-%s%>?",
7861 switches
[i
].part1
, hint
);
7863 error ("unrecognized command-line option %<-%s%>",
7868 /* Handle the various -print-* options, returning 0 if the driver
7869 should exit, or nonzero if the driver should continue. */
7872 driver::maybe_print_and_exit () const
7874 if (print_search_dirs
)
7876 printf (_("install: %s%s\n"),
7877 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7878 gcc_exec_prefix
? "" : machine_suffix
);
7879 printf (_("programs: %s\n"),
7880 build_search_list (&exec_prefixes
, "", false, false));
7881 printf (_("libraries: %s\n"),
7882 build_search_list (&startfile_prefixes
, "", false, true));
7886 if (print_file_name
)
7888 printf ("%s\n", find_file (print_file_name
));
7892 if (print_prog_name
)
7894 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
7896 /* Append USE_LD to the default linker. */
7897 #ifdef DEFAULT_LINKER
7899 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
7900 int len
= (sizeof (DEFAULT_LINKER
)
7901 - sizeof (HOST_EXECUTABLE_SUFFIX
));
7905 char *default_linker
= xstrdup (DEFAULT_LINKER
);
7906 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
7907 HOST_EXECUTABLE_SUFFIX. */
7908 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
7910 default_linker
[len
] = '\0';
7911 ld
= concat (default_linker
, use_ld
,
7912 HOST_EXECUTABLE_SUFFIX
, NULL
);
7917 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
7918 if (access (ld
, X_OK
) == 0)
7920 printf ("%s\n", ld
);
7924 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
7926 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7927 printf ("%s\n", (newname
? newname
: print_prog_name
));
7931 if (print_multi_lib
)
7933 print_multilib_info ();
7937 if (print_multi_directory
)
7939 if (multilib_dir
== NULL
)
7942 printf ("%s\n", multilib_dir
);
7946 if (print_multiarch
)
7948 if (multiarch_dir
== NULL
)
7951 printf ("%s\n", multiarch_dir
);
7957 if (target_system_root
)
7959 if (target_sysroot_suffix
)
7960 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7962 printf ("%s\n", target_system_root
);
7967 if (print_multi_os_directory
)
7969 if (multilib_os_dir
== NULL
)
7972 printf ("%s\n", multilib_os_dir
);
7976 if (print_sysroot_headers_suffix
)
7978 if (*sysroot_hdrs_suffix_spec
)
7980 printf("%s\n", (target_sysroot_hdrs_suffix
7981 ? target_sysroot_hdrs_suffix
7986 /* The error status indicates that only one set of fixed
7987 headers should be built. */
7988 fatal_error (input_location
,
7989 "not configured with sysroot headers suffix");
7992 if (print_help_list
)
7998 printf (_("\nFor bug reporting instructions, please see:\n"));
7999 printf ("%s.\n", bug_report_url
);
8004 /* We do not exit here. Instead we have created a fake input file
8005 called 'help-dummy' which needs to be compiled, and we pass this
8006 on the various sub-processes, along with the --help switch.
8007 Ensure their output appears after ours. */
8008 fputc ('\n', stdout
);
8014 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
8016 printf ("Copyright %s 2019 Free Software Foundation, Inc.\n",
8018 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
8019 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
8024 /* We do not exit here. We use the same mechanism of --help to print
8025 the version of the sub-processes. */
8026 fputc ('\n', stdout
);
8032 print_configuration (stderr
);
8040 /* Figure out what to do with each input file.
8041 Return true if we need to exit early from "main", false otherwise. */
8044 driver::prepare_infiles ()
8047 int lang_n_infiles
= 0;
8049 if (n_infiles
== added_libraries
)
8050 fatal_error (input_location
, "no input files");
8053 /* Early exit needed from main. */
8056 /* Make a place to record the compiler output file names
8057 that correspond to the input files. */
8060 i
+= lang_specific_extra_outfiles
;
8061 outfiles
= XCNEWVEC (const char *, i
);
8063 /* Record which files were specified explicitly as link input. */
8065 explicit_link_files
= XCNEWVEC (char, n_infiles
);
8067 combine_inputs
= have_o
|| flag_wpa
;
8069 for (i
= 0; (int) i
< n_infiles
; i
++)
8071 const char *name
= infiles
[i
].name
;
8072 struct compiler
*compiler
= lookup_compiler (name
,
8074 infiles
[i
].language
);
8076 if (compiler
&& !(compiler
->combinable
))
8077 combine_inputs
= false;
8079 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
8080 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
8081 infiles
[i
].incompiler
= compiler
;
8085 input_file_compiler
= compiler
;
8086 infiles
[i
].incompiler
= compiler
;
8090 /* Since there is no compiler for this input file, assume it is a
8092 explicit_link_files
[i
] = 1;
8093 infiles
[i
].incompiler
= NULL
;
8095 infiles
[i
].compiled
= false;
8096 infiles
[i
].preprocessed
= false;
8099 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
8100 fatal_error (input_location
,
8101 "cannot specify %<-o%> with %<-c%>, %<-S%> or %<-E%> "
8102 "with multiple files");
8104 /* No early exit needed from main; we can continue. */
8108 /* Run the spec machinery on each input file. */
8111 driver::do_spec_on_infiles () const
8115 for (i
= 0; (int) i
< n_infiles
; i
++)
8117 int this_file_error
= 0;
8119 /* Tell do_spec what to substitute for %i. */
8121 input_file_number
= i
;
8122 set_input (infiles
[i
].name
);
8124 if (infiles
[i
].compiled
)
8127 /* Use the same thing in %o, unless cp->spec says otherwise. */
8129 outfiles
[i
] = gcc_input_filename
;
8131 /* Figure out which compiler from the file's suffix. */
8134 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
8135 infiles
[i
].language
);
8137 if (input_file_compiler
)
8139 /* Ok, we found an applicable compiler. Run its spec. */
8141 if (input_file_compiler
->spec
[0] == '#')
8143 error ("%s: %s compiler not installed on this system",
8144 gcc_input_filename
, &input_file_compiler
->spec
[1]);
8145 this_file_error
= 1;
8153 free (debug_check_temp_file
[0]);
8154 debug_check_temp_file
[0] = NULL
;
8156 free (debug_check_temp_file
[1]);
8157 debug_check_temp_file
[1] = NULL
;
8160 value
= do_spec (input_file_compiler
->spec
);
8161 infiles
[i
].compiled
= true;
8163 this_file_error
= 1;
8164 else if (compare_debug
&& debug_check_temp_file
[0])
8167 inform (UNKNOWN_LOCATION
,
8168 "recompiling with %<-fcompare-debug%>");
8170 compare_debug
= -compare_debug
;
8171 n_switches
= n_switches_debug_check
[1];
8172 n_switches_alloc
= n_switches_alloc_debug_check
[1];
8173 switches
= switches_debug_check
[1];
8175 value
= do_spec (input_file_compiler
->spec
);
8177 compare_debug
= -compare_debug
;
8178 n_switches
= n_switches_debug_check
[0];
8179 n_switches_alloc
= n_switches_alloc_debug_check
[0];
8180 switches
= switches_debug_check
[0];
8184 error ("during %<-fcompare-debug%> recompilation");
8185 this_file_error
= 1;
8188 gcc_assert (debug_check_temp_file
[1]
8189 && filename_cmp (debug_check_temp_file
[0],
8190 debug_check_temp_file
[1]));
8193 inform (UNKNOWN_LOCATION
, "comparing final insns dumps");
8195 if (compare_files (debug_check_temp_file
))
8196 this_file_error
= 1;
8201 free (debug_check_temp_file
[0]);
8202 debug_check_temp_file
[0] = NULL
;
8204 free (debug_check_temp_file
[1]);
8205 debug_check_temp_file
[1] = NULL
;
8210 /* If this file's name does not contain a recognized suffix,
8211 record it as explicit linker input. */
8214 explicit_link_files
[i
] = 1;
8216 /* Clear the delete-on-failure queue, deleting the files in it
8217 if this compilation failed. */
8219 if (this_file_error
)
8221 delete_failure_queue ();
8224 /* If this compilation succeeded, don't delete those files later. */
8225 clear_failure_queue ();
8228 /* Reset the input file name to the first compile/object file name, for use
8229 with %b in LINK_SPEC. We use the first input file that we can find
8230 a compiler to compile it instead of using infiles.language since for
8231 languages other than C we use aliases that we then lookup later. */
8236 for (i
= 0; i
< n_infiles
; i
++)
8237 if (infiles
[i
].incompiler
8238 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
8240 set_input (infiles
[i
].name
);
8247 /* Make sure INPUT_FILE_NUMBER points to first available open
8249 input_file_number
= n_infiles
;
8250 if (lang_specific_pre_link ())
8255 /* If we have to run the linker, do it now. */
8258 driver::maybe_run_linker (const char *argv0
) const
8261 int linker_was_run
= 0;
8262 int num_linker_inputs
;
8264 /* Determine if there are any linker input files. */
8265 num_linker_inputs
= 0;
8266 for (i
= 0; (int) i
< n_infiles
; i
++)
8267 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
8268 num_linker_inputs
++;
8270 /* Run ld to link all the compiler output files. */
8272 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
8274 int tmp
= execution_count
;
8276 detect_jobserver ();
8280 #if HAVE_LTO_PLUGIN > 0
8281 #if HAVE_LTO_PLUGIN == 2
8282 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
8284 const char *fuse_linker_plugin
= "fuse-linker-plugin";
8288 /* We'll use ld if we can't find collect2. */
8289 if (! strcmp (linker_name_spec
, "collect2"))
8291 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
8293 linker_name_spec
= "ld";
8296 #if HAVE_LTO_PLUGIN > 0
8297 #if HAVE_LTO_PLUGIN == 2
8298 if (!switch_matches (fno_use_linker_plugin
,
8299 fno_use_linker_plugin
8300 + strlen (fno_use_linker_plugin
), 0))
8302 if (switch_matches (fuse_linker_plugin
,
8304 + strlen (fuse_linker_plugin
), 0))
8307 char *temp_spec
= find_a_file (&exec_prefixes
,
8308 LTOPLUGINSONAME
, R_OK
,
8311 fatal_error (input_location
,
8312 "%<-fuse-linker-plugin%>, but %s not found",
8314 linker_plugin_file_spec
= convert_white_space (temp_spec
);
8317 lto_gcc_spec
= argv0
;
8320 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
8322 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
8323 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
8325 if (print_subprocess_help
== 1)
8327 printf (_("\nLinker options\n==============\n\n"));
8328 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
8329 " to the linker.\n\n"));
8332 int value
= do_spec (link_command_spec
);
8335 linker_was_run
= (tmp
!= execution_count
);
8338 /* If options said don't run linker,
8339 complain about input files to be given to the linker. */
8341 if (! linker_was_run
&& !seen_error ())
8342 for (i
= 0; (int) i
< n_infiles
; i
++)
8343 if (explicit_link_files
[i
]
8344 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
8345 warning (0, "%s: linker input file unused because linking not done",
8349 /* The end of "main". */
8352 driver::final_actions () const
8354 /* Delete some or all of the temporary files we made. */
8357 delete_failure_queue ();
8358 delete_temp_files ();
8360 if (print_help_list
)
8362 printf (("\nFor bug reporting instructions, please see:\n"));
8363 printf ("%s\n", bug_report_url
);
8367 /* Detect whether jobserver is active and working. If not drop
8368 --jobserver-auth from MAKEFLAGS. */
8371 driver::detect_jobserver () const
8373 /* Detect jobserver and drop it if it's not working. */
8374 const char *makeflags
= env
.get ("MAKEFLAGS");
8375 if (makeflags
!= NULL
)
8377 const char *needle
= "--jobserver-auth=";
8378 const char *n
= strstr (makeflags
, needle
);
8385 = (sscanf (n
+ strlen (needle
), "%d,%d", &rfd
, &wfd
) == 2
8388 && is_valid_fd (rfd
)
8389 && is_valid_fd (wfd
));
8391 /* Drop the jobserver if it's not working now. */
8394 unsigned offset
= n
- makeflags
;
8395 char *dup
= xstrdup (makeflags
);
8398 const char *space
= strchr (makeflags
+ offset
, ' ');
8400 strcpy (dup
+ offset
, space
);
8401 xputenv (concat ("MAKEFLAGS=", dup
, NULL
));
8407 /* Determine what the exit code of the driver should be. */
8410 driver::get_exit_code () const
8412 return (signal_count
!= 0 ? 2
8413 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
8417 /* Find the proper compilation spec for the file name NAME,
8418 whose length is LENGTH. LANGUAGE is the specified language,
8419 or 0 if this file is to be passed to the linker. */
8421 static struct compiler
*
8422 lookup_compiler (const char *name
, size_t length
, const char *language
)
8424 struct compiler
*cp
;
8426 /* If this was specified by the user to be a linker input, indicate that. */
8427 if (language
!= 0 && language
[0] == '*')
8430 /* Otherwise, look for the language, if one is spec'd. */
8433 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8434 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
8436 if (name
!= NULL
&& strcmp (name
, "-") == 0
8437 && (strcmp (cp
->suffix
, "@c-header") == 0
8438 || strcmp (cp
->suffix
, "@c++-header") == 0)
8440 fatal_error (input_location
,
8441 "cannot use %<-%> as input filename for a "
8442 "precompiled header");
8447 error ("language %s not recognized", language
);
8451 /* Look for a suffix. */
8452 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8454 if (/* The suffix `-' matches only the file name `-'. */
8455 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8456 || (strlen (cp
->suffix
) < length
8457 /* See if the suffix matches the end of NAME. */
8458 && !strcmp (cp
->suffix
,
8459 name
+ length
- strlen (cp
->suffix
))
8464 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
8465 /* Look again, but case-insensitively this time. */
8467 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8469 if (/* The suffix `-' matches only the file name `-'. */
8470 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8471 || (strlen (cp
->suffix
) < length
8472 /* See if the suffix matches the end of NAME. */
8473 && ((!strcmp (cp
->suffix
,
8474 name
+ length
- strlen (cp
->suffix
))
8475 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
8476 && !strcasecmp (cp
->suffix
,
8477 name
+ length
- strlen (cp
->suffix
)))
8483 if (cp
>= compilers
)
8485 if (cp
->spec
[0] != '@')
8486 /* A non-alias entry: return it. */
8489 /* An alias entry maps a suffix to a language.
8490 Search for the language; pass 0 for NAME and LENGTH
8491 to avoid infinite recursion if language not found. */
8492 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
8498 save_string (const char *s
, int len
)
8500 char *result
= XNEWVEC (char, len
+ 1);
8502 gcc_checking_assert (strlen (s
) >= (unsigned int) len
);
8503 memcpy (result
, s
, len
);
8510 validate_switches_from_spec (const char *spec
, bool user
)
8512 const char *p
= spec
;
8518 || (*p
== 'W' && *++p
== '{')
8519 || (*p
== '@' && *++p
== '{')))
8520 /* We have a switch spec. */
8521 p
= validate_switches (p
+ 1, user
);
8525 validate_all_switches (void)
8527 struct compiler
*comp
;
8528 struct spec_list
*spec
;
8530 for (comp
= compilers
; comp
->spec
; comp
++)
8531 validate_switches_from_spec (comp
->spec
, false);
8533 /* Look through the linked list of specs read from the specs file. */
8534 for (spec
= specs
; spec
; spec
= spec
->next
)
8535 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
8537 validate_switches_from_spec (link_command_spec
, false);
8540 /* Look at the switch-name that comes after START
8541 and mark as valid all supplied switches that match it. */
8544 validate_switches (const char *start
, bool user_spec
)
8546 const char *p
= start
;
8550 bool suffix
= false;
8551 bool starred
= false;
8553 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
8562 if (*p
== '.' || *p
== ',')
8566 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
8567 || *p
== ',' || *p
== '.' || *p
== '@')
8572 starred
= true, p
++;
8578 /* Mark all matching switches as valid. */
8579 for (i
= 0; i
< n_switches
; i
++)
8580 if (!strncmp (switches
[i
].part1
, atom
, len
)
8581 && (starred
|| switches
[i
].part1
[len
] == '\0')
8582 && (switches
[i
].known
|| user_spec
))
8583 switches
[i
].validated
= true;
8587 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
8590 if (*p
&& p
[-1] == ':')
8592 while (*p
&& *p
!= ';' && *p
!= '}')
8597 if (*p
== '{' || *p
== '<')
8598 p
= validate_switches (p
+1, user_spec
);
8599 else if (p
[0] == 'W' && p
[1] == '{')
8600 p
= validate_switches (p
+2, user_spec
);
8601 else if (p
[0] == '@' && p
[1] == '{')
8602 p
= validate_switches (p
+2, user_spec
);
8609 if (*p
&& p
[-1] == ';')
8623 static struct mdswitchstr
*mdswitches
;
8624 static int n_mdswitches
;
8626 /* Check whether a particular argument was used. The first time we
8627 canonicalize the switches to keep only the ones we care about. */
8632 int operator () (const char *p
, int len
);
8639 const char *replace
;
8644 mswitchstr
*mswitches
;
8649 used_arg_t used_arg
;
8652 used_arg_t::operator () (const char *p
, int len
)
8658 struct mswitchstr
*matches
;
8662 /* Break multilib_matches into the component strings of string
8663 and replacement string. */
8664 for (q
= multilib_matches
; *q
!= '\0'; q
++)
8669 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
8671 q
= multilib_matches
;
8680 fatal_error (input_location
, "multilib spec %qs is invalid",
8685 matches
[i
].len
= q
- matches
[i
].str
;
8687 matches
[i
].replace
= ++q
;
8688 while (*q
!= ';' && *q
!= '\0')
8691 goto invalid_matches
;
8694 matches
[i
].rep_len
= q
- matches
[i
].replace
;
8700 /* Now build a list of the replacement string for switches that we care
8701 about. Make sure we allocate at least one entry. This prevents
8702 xmalloc from calling fatal, and prevents us from re-executing this
8705 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
8706 for (i
= 0; i
< n_switches
; i
++)
8707 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
8709 int xlen
= strlen (switches
[i
].part1
);
8710 for (j
= 0; j
< cnt
; j
++)
8711 if (xlen
== matches
[j
].len
8712 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
8714 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
8715 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
8716 mswitches
[n_mswitches
].replace
= (char *) 0;
8717 mswitches
[n_mswitches
].rep_len
= 0;
8723 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
8724 on the command line nor any options mutually incompatible with
8726 for (i
= 0; i
< n_mdswitches
; i
++)
8730 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
8736 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
8737 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
8739 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8746 if (*q
!= ' ' && *q
!= '\0')
8748 while (*r
!= ' ' && *r
!= '\0')
8751 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8754 if (used_arg (r
, q
- r
))
8759 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
8760 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
8761 mswitches
[n_mswitches
].replace
= (char *) 0;
8762 mswitches
[n_mswitches
].rep_len
= 0;
8775 for (i
= 0; i
< n_mswitches
; i
++)
8776 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8782 void used_arg_t::finalize ()
8784 XDELETEVEC (mswitches
);
8791 default_arg (const char *p
, int len
)
8795 for (i
= 0; i
< n_mdswitches
; i
++)
8796 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8802 /* Work out the subdirectory to use based on the options. The format of
8803 multilib_select is a list of elements. Each element is a subdirectory
8804 name followed by a list of options followed by a semicolon. The format
8805 of multilib_exclusions is the same, but without the preceding
8806 directory. First gcc will check the exclusions, if none of the options
8807 beginning with an exclamation point are present, and all of the other
8808 options are present, then we will ignore this completely. Passing
8809 that, gcc will consider each multilib_select in turn using the same
8810 rules for matching the options. If a match is found, that subdirectory
8812 A subdirectory name is optionally followed by a colon and the corresponding
8816 set_multilib_dir (void)
8819 unsigned int this_path_len
;
8820 const char *this_path
, *this_arg
;
8821 const char *start
, *end
;
8823 int ok
, ndfltok
, first
;
8826 start
= multilib_defaults
;
8827 while (*start
== ' ' || *start
== '\t')
8829 while (*start
!= '\0')
8832 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8834 while (*start
== ' ' || *start
== '\t')
8842 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8843 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8845 while (*start
== ' ' || *start
== '\t')
8851 for (end
= start
+ 1;
8852 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8855 obstack_grow (&multilib_obstack
, start
, end
- start
);
8856 obstack_1grow (&multilib_obstack
, 0);
8857 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8858 mdswitches
[i
++].len
= end
- start
;
8865 p
= multilib_exclusions
;
8868 /* Ignore newlines. */
8875 /* Check the arguments. */
8882 fatal_error (input_location
, "multilib exclusions %qs is invalid",
8883 multilib_exclusions
);
8893 while (*p
!= ' ' && *p
!= ';')
8896 goto invalid_exclusions
;
8900 if (*this_arg
!= '!')
8908 ok
= used_arg (this_arg
, p
- this_arg
);
8923 p
= multilib_select
;
8925 /* Append multilib reuse rules if any. With those rules, we can reuse
8926 one multilib for certain different options sets. */
8927 if (strlen (multilib_reuse
) > 0)
8928 p
= concat (p
, multilib_reuse
, NULL
);
8932 /* Ignore newlines. */
8939 /* Get the initial path. */
8946 fatal_error (input_location
, "multilib select %qs %qs is invalid",
8947 multilib_select
, multilib_reuse
);
8951 this_path_len
= p
- this_path
;
8953 /* Check the arguments. */
8960 goto invalid_select
;
8969 while (*p
!= ' ' && *p
!= ';')
8972 goto invalid_select
;
8976 if (*this_arg
!= '!')
8984 /* If this is a default argument, we can just ignore it.
8985 This is true even if this_arg begins with '!'. Beginning
8986 with '!' does not mean that this argument is necessarily
8987 inappropriate for this library: it merely means that
8988 there is a more specific library which uses this
8989 argument. If this argument is a default, we need not
8990 consider that more specific library. */
8991 ok
= used_arg (this_arg
, p
- this_arg
);
8998 if (default_arg (this_arg
, p
- this_arg
))
9007 if (this_path_len
!= 1
9008 || this_path
[0] != '.')
9010 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
9013 strncpy (new_multilib_dir
, this_path
, this_path_len
);
9014 new_multilib_dir
[this_path_len
] = '\0';
9015 q
= strchr (new_multilib_dir
, ':');
9018 multilib_dir
= new_multilib_dir
;
9025 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
9027 while (q
< end
&& *q
!= ':')
9031 const char *q2
= q
+ 1, *ml_end
= end
;
9032 char *new_multilib_os_dir
;
9034 while (q2
< end
&& *q2
!= ':')
9038 if (ml_end
- q
== 1)
9039 multilib_os_dir
= xstrdup (".");
9042 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
9043 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
9044 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
9045 multilib_os_dir
= new_multilib_os_dir
;
9048 if (q2
< end
&& *q2
== ':')
9050 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
9051 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
9052 new_multiarch_dir
[end
- q2
- 1] = '\0';
9053 multiarch_dir
= new_multiarch_dir
;
9062 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
9063 && strcmp (multilib_os_dir
, ".") == 0)
9065 free (CONST_CAST (char *, multilib_os_dir
));
9066 multilib_os_dir
= NULL
;
9068 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
9069 multilib_os_dir
= multilib_dir
;
9072 /* Print out the multiple library subdirectory selection
9073 information. This prints out a series of lines. Each line looks
9074 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
9075 required. Only the desired options are printed out, the negative
9076 matches. The options are print without a leading dash. There are
9077 no spaces to make it easy to use the information in the shell.
9078 Each subdirectory is printed only once. This assumes the ordering
9079 generated by the genmultilib script. Also, we leave out ones that match
9083 print_multilib_info (void)
9085 const char *p
= multilib_select
;
9086 const char *last_path
= 0, *this_path
;
9088 unsigned int last_path_len
= 0;
9093 /* Ignore newlines. */
9100 /* Get the initial path. */
9107 fatal_error (input_location
,
9108 "multilib select %qs is invalid", multilib_select
);
9114 /* When --disable-multilib was used but target defines
9115 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
9116 with .:: for multiarch configurations) are there just to find
9117 multilib_os_dir, so skip them from output. */
9118 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
9121 /* Check for matches with the multilib_exclusions. We don't bother
9122 with the '!' in either list. If any of the exclusion rules match
9123 all of its options with the select rule, we skip it. */
9125 const char *e
= multilib_exclusions
;
9126 const char *this_arg
;
9131 /* Ignore newlines. */
9138 /* Check the arguments. */
9147 fatal_error (input_location
,
9148 "multilib exclusion %qs is invalid",
9149 multilib_exclusions
);
9160 while (*e
!= ' ' && *e
!= ';')
9163 goto invalid_exclusion
;
9171 int len
= e
- this_arg
;
9174 goto invalid_select
;
9178 while (*q
!= ' ' && *q
!= ';')
9181 goto invalid_select
;
9185 if (! strncmp (arg
, this_arg
,
9186 (len
< q
- arg
) ? q
- arg
: len
)
9187 || default_arg (this_arg
, e
- this_arg
))
9217 /* If this is a duplicate, skip it. */
9218 skip
= (last_path
!= 0
9219 && (unsigned int) (p
- this_path
) == last_path_len
9220 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
9222 last_path
= this_path
;
9223 last_path_len
= p
- this_path
;
9226 /* If this directory requires any default arguments, we can skip
9227 it. We will already have printed a directory identical to
9228 this one which does not require that default argument. */
9239 goto invalid_select
;
9246 while (*q
!= ' ' && *q
!= ';')
9249 goto invalid_select
;
9254 && default_arg (arg
, q
- arg
))
9269 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
9280 goto invalid_select
;
9288 use_arg
= *p
!= '!';
9293 while (*p
!= ' ' && *p
!= ';')
9296 goto invalid_select
;
9308 /* If there are extra options, print them now. */
9309 if (multilib_extra
&& *multilib_extra
)
9311 int print_at
= TRUE
;
9314 for (q
= multilib_extra
; *q
!= '\0'; q
++)
9335 /* getenv built-in spec function.
9337 Returns the value of the environment variable given by its first argument,
9338 concatenated with the second argument. If the variable is not defined, a
9339 fatal error is issued unless such undefs are internally allowed, in which
9340 case the variable name prefixed by a '/' is used as the variable value.
9342 The leading '/' allows using the result at a spot where a full path would
9343 normally be expected and when the actual value doesn't really matter since
9344 undef vars are allowed. */
9347 getenv_spec_function (int argc
, const char **argv
)
9350 const char *varname
;
9360 value
= env
.get (varname
);
9362 /* If the variable isn't defined and this is allowed, craft our expected
9363 return value. Assume variable names used in specs strings don't contain
9364 any active spec character so don't need escaping. */
9365 if (!value
&& spec_undefvar_allowed
)
9367 result
= XNEWVAR (char, strlen(varname
) + 2);
9368 sprintf (result
, "/%s", varname
);
9373 fatal_error (input_location
,
9374 "environment variable %qs not defined", varname
);
9376 /* We have to escape every character of the environment variable so
9377 they are not interpreted as active spec characters. A
9378 particularly painful case is when we are reading a variable
9379 holding a windows path complete with \ separators. */
9380 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
9381 result
= XNEWVAR (char, len
);
9382 for (ptr
= result
; *value
; ptr
+= 2)
9388 strcpy (ptr
, argv
[1]);
9393 /* if-exists built-in spec function.
9395 Checks to see if the file specified by the absolute pathname in
9396 ARGS exists. Returns that pathname if found.
9398 The usual use for this function is to check for a library file
9399 (whose name has been expanded with %s). */
9402 if_exists_spec_function (int argc
, const char **argv
)
9404 /* Must have only one argument. */
9405 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9411 /* if-exists-else built-in spec function.
9413 This is like if-exists, but takes an additional argument which
9414 is returned if the first argument does not exist. */
9417 if_exists_else_spec_function (int argc
, const char **argv
)
9419 /* Must have exactly two arguments. */
9423 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9429 /* sanitize built-in spec function.
9431 This returns non-NULL, if sanitizing address, thread or
9432 any of the undefined behavior sanitizers. */
9435 sanitize_spec_function (int argc
, const char **argv
)
9440 if (strcmp (argv
[0], "address") == 0)
9441 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
9442 if (strcmp (argv
[0], "kernel-address") == 0)
9443 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
9444 if (strcmp (argv
[0], "thread") == 0)
9445 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
9446 if (strcmp (argv
[0], "undefined") == 0)
9447 return ((flag_sanitize
9448 & (SANITIZE_UNDEFINED
| SANITIZE_UNDEFINED_NONDEFAULT
))
9449 && !flag_sanitize_undefined_trap_on_error
) ? "" : NULL
;
9450 if (strcmp (argv
[0], "leak") == 0)
9451 return ((flag_sanitize
9452 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
9453 == SANITIZE_LEAK
) ? "" : NULL
;
9457 /* replace-outfile built-in spec function.
9459 This looks for the first argument in the outfiles array's name and
9460 replaces it with the second argument. */
9463 replace_outfile_spec_function (int argc
, const char **argv
)
9466 /* Must have exactly two arguments. */
9470 for (i
= 0; i
< n_infiles
; i
++)
9472 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9473 outfiles
[i
] = xstrdup (argv
[1]);
9478 /* remove-outfile built-in spec function.
9480 * This looks for the first argument in the outfiles array's name and
9484 remove_outfile_spec_function (int argc
, const char **argv
)
9487 /* Must have exactly one argument. */
9491 for (i
= 0; i
< n_infiles
; i
++)
9493 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9499 /* Given two version numbers, compares the two numbers.
9500 A version number must match the regular expression
9501 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
9504 compare_version_strings (const char *v1
, const char *v2
)
9509 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
9510 REG_EXTENDED
| REG_NOSUB
) != 0)
9512 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
9513 if (rresult
== REG_NOMATCH
)
9514 fatal_error (input_location
, "invalid version number %qs", v1
);
9515 else if (rresult
!= 0)
9517 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
9518 if (rresult
== REG_NOMATCH
)
9519 fatal_error (input_location
, "invalid version number %qs", v2
);
9520 else if (rresult
!= 0)
9523 return strverscmp (v1
, v2
);
9527 /* version_compare built-in spec function.
9529 This takes an argument of the following form:
9531 <comparison-op> <arg1> [<arg2>] <switch> <result>
9533 and produces "result" if the comparison evaluates to true,
9534 and nothing if it doesn't.
9536 The supported <comparison-op> values are:
9538 >= true if switch is a later (or same) version than arg1
9540 < true if switch is an earlier version than arg1
9542 >< true if switch is arg1 or later, and earlier than arg2
9543 <> true if switch is earlier than arg1 or is arg2 or later
9545 If the switch is not present, the condition is false unless
9546 the first character of the <comparison-op> is '!'.
9549 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
9550 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
9553 version_compare_spec_function (int argc
, const char **argv
)
9557 const char *switch_value
= NULL
;
9562 fatal_error (input_location
, "too few arguments to %%:version-compare");
9563 if (argv
[0][0] == '\0')
9565 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
9567 if (argc
!= nargs
+ 3)
9568 fatal_error (input_location
, "too many arguments to %%:version-compare");
9570 switch_len
= strlen (argv
[nargs
+ 1]);
9571 for (i
= 0; i
< n_switches
; i
++)
9572 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
9573 && check_live_switch (i
, switch_len
))
9574 switch_value
= switches
[i
].part1
+ switch_len
;
9576 if (switch_value
== NULL
)
9580 comp1
= compare_version_strings (switch_value
, argv
[1]);
9582 comp2
= compare_version_strings (switch_value
, argv
[2]);
9584 comp2
= -1; /* This value unused. */
9587 switch (argv
[0][0] << 8 | argv
[0][1])
9589 case '>' << 8 | '=':
9590 result
= comp1
>= 0;
9592 case '!' << 8 | '<':
9593 result
= comp1
>= 0 || switch_value
== NULL
;
9598 case '!' << 8 | '>':
9599 result
= comp1
< 0 || switch_value
== NULL
;
9601 case '>' << 8 | '<':
9602 result
= comp1
>= 0 && comp2
< 0;
9604 case '<' << 8 | '>':
9605 result
= comp1
< 0 || comp2
>= 0;
9609 fatal_error (input_location
,
9610 "unknown operator %qs in %%:version-compare", argv
[0]);
9615 return argv
[nargs
+ 2];
9618 /* %:include builtin spec function. This differs from %include in that it
9619 can be nested inside a spec, and thus be conditionalized. It takes
9620 one argument, the filename, and looks for it in the startfile path.
9621 The result is always NULL, i.e. an empty expansion. */
9624 include_spec_function (int argc
, const char **argv
)
9631 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
9632 read_specs (file
? file
: argv
[0], false, false);
9637 /* %:find-file spec function. This function replaces its argument by
9638 the file found through find_file, that is the -print-file-name gcc
9641 find_file_spec_function (int argc
, const char **argv
)
9648 file
= find_file (argv
[0]);
9653 /* %:find-plugindir spec function. This function replaces its argument
9654 by the -iplugindir=<dir> option. `dir' is found through find_file, that
9655 is the -print-file-name gcc program option. */
9657 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
9664 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
9669 /* %:print-asm-header spec function. Print a banner to say that the
9670 following output is from the assembler. */
9673 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
9674 const char **argv ATTRIBUTE_UNUSED
)
9676 printf (_("Assembler options\n=================\n\n"));
9677 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
9682 /* Get a random number for -frandom-seed */
9684 static unsigned HOST_WIDE_INT
9685 get_random_number (void)
9687 unsigned HOST_WIDE_INT ret
= 0;
9690 fd
= open ("/dev/urandom", O_RDONLY
);
9693 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
9699 /* Get some more or less random data. */
9700 #ifdef HAVE_GETTIMEOFDAY
9704 gettimeofday (&tv
, NULL
);
9705 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
9709 time_t now
= time (NULL
);
9711 if (now
!= (time_t)-1)
9712 ret
= (unsigned) now
;
9716 return ret
^ getpid ();
9719 /* %:compare-debug-dump-opt spec function. Save the last argument,
9720 expected to be the last -fdump-final-insns option, or generate a
9724 compare_debug_dump_opt_spec_function (int arg
,
9725 const char **argv ATTRIBUTE_UNUSED
)
9730 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
9733 fatal_error (input_location
,
9734 "too many arguments to %%:compare-debug-dump-opt");
9736 do_spec_2 ("%{fdump-final-insns=*:%*}", NULL
);
9737 do_spec_1 (" ", 0, NULL
);
9739 if (argbuf
.length () > 0
9740 && strcmp (argv
[argbuf
.length () - 1], "."))
9745 name
= xstrdup (argv
[argbuf
.length () - 1]);
9750 const char *ext
= NULL
;
9752 if (argbuf
.length () > 0)
9754 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}", NULL
);
9757 else if (!compare_debug
)
9760 do_spec_2 ("%g.gkd", NULL
);
9762 do_spec_1 (" ", 0, NULL
);
9764 gcc_assert (argbuf
.length () > 0);
9766 name
= concat (argbuf
.last (), ext
, NULL
);
9768 ret
= concat ("-fdump-final-insns=", name
, NULL
);
9771 which
= compare_debug
< 0;
9772 debug_check_temp_file
[which
] = name
;
9776 unsigned HOST_WIDE_INT value
= get_random_number ();
9778 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
9784 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
9795 static const char *debug_auxbase_opt
;
9797 /* %:compare-debug-self-opt spec function. Expands to the options
9798 that are to be passed in the second compilation of
9802 compare_debug_self_opt_spec_function (int arg
,
9803 const char **argv ATTRIBUTE_UNUSED
)
9806 fatal_error (input_location
,
9807 "too many arguments to %%:compare-debug-self-opt");
9809 if (compare_debug
>= 0)
9812 do_spec_2 ("%{c|S:%{o*:%*}}", NULL
);
9813 do_spec_1 (" ", 0, NULL
);
9815 if (argbuf
.length () > 0)
9816 debug_auxbase_opt
= concat ("-auxbase-strip ",
9820 debug_auxbase_opt
= NULL
;
9823 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
9824 %<fdump-final-insns=* -w -S -o %j \
9825 %{!fcompare-debug-second:-fcompare-debug-second} \
9826 ", compare_debug_opt
, NULL
);
9829 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
9830 options that are to be passed in the second compilation of
9831 compare-debug. It expects, as an argument, the basename of the
9832 current input file name, with the .gk suffix appended to it. */
9835 compare_debug_auxbase_opt_spec_function (int arg
,
9842 fatal_error (input_location
,
9843 "too few arguments to %%:compare-debug-auxbase-opt");
9846 fatal_error (input_location
,
9847 "too many arguments to %%:compare-debug-auxbase-opt");
9849 if (compare_debug
>= 0)
9852 len
= strlen (argv
[0]);
9853 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
9854 fatal_error (input_location
, "argument to %%:compare-debug-auxbase-opt "
9855 "does not end in %<.gk%>");
9857 if (debug_auxbase_opt
)
9858 return debug_auxbase_opt
;
9860 #define OPT "-auxbase "
9863 name
= (char*) xmalloc (sizeof (OPT
) + len
);
9864 memcpy (name
, OPT
, sizeof (OPT
) - 1);
9865 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
9866 name
[sizeof (OPT
) - 1 + len
] = '\0';
9873 /* %:pass-through-libs spec function. Finds all -l options and input
9874 file names in the lib spec passed to it, and makes a list of them
9875 prepended with the plugin option to cause them to be passed through
9876 to the final link after all the new object files have been added. */
9879 pass_through_libs_spec_func (int argc
, const char **argv
)
9881 char *prepended
= xstrdup (" ");
9883 /* Shlemiel the painter's algorithm. Innately horrible, but at least
9884 we know that there will never be more than a handful of strings to
9885 concat, and it's only once per run, so it's not worth optimising. */
9886 for (n
= 0; n
< argc
; n
++)
9888 char *old
= prepended
;
9889 /* Anything that isn't an option is a full path to an output
9890 file; pass it through if it ends in '.a'. Among options,
9892 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
9894 const char *lopt
= argv
[n
] + 2;
9895 /* Handle both joined and non-joined -l options. If for any
9896 reason there's a trailing -l with no joined or following
9897 arg just discard it. */
9898 if (!*lopt
&& ++n
>= argc
)
9902 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
9905 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
9907 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
9908 argv
[n
], " ", NULL
);
9910 if (prepended
!= old
)
9916 /* %:replace-extension spec function. Replaces the extension of the
9917 first argument with the second argument. */
9920 replace_extension_spec_func (int argc
, const char **argv
)
9928 fatal_error (input_location
, "too few arguments to %%:replace-extension");
9930 name
= xstrdup (argv
[0]);
9932 for (i
= strlen (name
) - 1; i
>= 0; i
--)
9933 if (IS_DIR_SEPARATOR (name
[i
]))
9936 p
= strrchr (name
+ i
+ 1, '.');
9940 result
= concat (name
, argv
[1], NULL
);
9946 /* Returns "" if ARGV[ARGC - 2] is greater than ARGV[ARGC-1].
9947 Otherwise, return NULL. */
9950 greater_than_spec_func (int argc
, const char **argv
)
9957 gcc_assert (argc
>= 2);
9959 long arg
= strtol (argv
[argc
- 2], &converted
, 10);
9960 gcc_assert (converted
!= argv
[argc
- 2]);
9962 long lim
= strtol (argv
[argc
- 1], &converted
, 10);
9963 gcc_assert (converted
!= argv
[argc
- 1]);
9971 /* Returns "" if debug_info_level is greater than ARGV[ARGC-1].
9972 Otherwise, return NULL. */
9975 debug_level_greater_than_spec_func (int argc
, const char **argv
)
9980 fatal_error (input_location
,
9981 "wrong number of arguments to %%:debug-level-gt");
9983 long arg
= strtol (argv
[0], &converted
, 10);
9984 gcc_assert (converted
!= argv
[0]);
9986 if (debug_info_level
> arg
)
9993 path_prefix_reset (path_prefix
*prefix
)
9995 struct prefix_list
*iter
, *next
;
9996 iter
= prefix
->plist
;
10000 free (const_cast <char *> (iter
->prefix
));
10005 prefix
->max_len
= 0;
10008 /* The function takes 3 arguments: OPTION name, file name and location
10009 where we search for Fortran modules.
10010 When the FILE is found by find_file, return OPTION=path_to_file. */
10012 static const char *
10013 find_fortran_preinclude_file (int argc
, const char **argv
)
10015 char *result
= NULL
;
10019 struct path_prefix prefixes
= { 0, 0, "preinclude" };
10021 /* Search first for 'finclude' folder location for a header file
10022 installed by the compiler (similar to omp_lib.h). */
10023 add_prefix (&prefixes
, argv
[2], NULL
, 0, 0, 0);
10024 #ifdef TOOL_INCLUDE_DIR
10025 /* Then search: <prefix>/<target>/<include>/finclude */
10026 add_prefix (&prefixes
, TOOL_INCLUDE_DIR
"/finclude/",
10029 #ifdef NATIVE_SYSTEM_HEADER_DIR
10030 /* Then search: <sysroot>/usr/include/finclude/<multilib> */
10031 add_sysrooted_hdrs_prefix (&prefixes
, NATIVE_SYSTEM_HEADER_DIR
"/finclude/",
10035 const char *path
= find_a_file (&include_prefixes
, argv
[1], R_OK
, false);
10037 result
= concat (argv
[0], path
, NULL
);
10040 path
= find_a_file (&prefixes
, argv
[1], R_OK
, false);
10042 result
= concat (argv
[0], path
, NULL
);
10045 path_prefix_reset (&prefixes
);
10050 /* Insert backslash before spaces in ORIG (usually a file path), to
10051 avoid being broken by spec parser.
10053 This function is needed as do_spec_1 treats white space (' ' and '\t')
10054 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
10055 the file name should be treated as a single argument rather than being
10056 broken into multiple. Solution is to insert '\\' before the space in a
10059 This function converts and only converts all occurrence of ' '
10060 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
10062 "a b" -> "a\\ \\ b"
10064 "a\\ b" -> "a\\\\ b"
10066 orig: input null-terminating string that was allocated by xalloc. The
10067 memory it points to might be freed in this function. Behavior undefined
10068 if ORIG wasn't xalloced or was freed already at entry.
10070 Return: ORIG if no conversion needed. Otherwise a newly allocated string
10071 that was converted from ORIG. */
10074 convert_white_space (char *orig
)
10076 int len
, number_of_space
= 0;
10078 for (len
= 0; orig
[len
]; len
++)
10079 if (orig
[len
] == ' ' || orig
[len
] == '\t') number_of_space
++;
10081 if (number_of_space
)
10083 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
10085 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
10087 if (orig
[j
] == ' ' || orig
[j
] == '\t')
10088 new_spec
[k
++] = '\\';
10089 new_spec
[k
] = orig
[j
];
10098 /* Restore all state within gcc.c to the initial state, so that the driver
10099 code can be safely re-run in-process.
10101 Many const char * variables are referenced by static specs (see
10102 INIT_STATIC_SPEC above). These variables are restored to their default
10103 values by a simple loop over the static specs.
10105 For other variables, we directly restore them all to their initial
10106 values (often implicitly 0).
10108 Free the various obstacks in this file, along with "opts_obstack"
10111 This function also restores any environment variables that were changed. */
10114 driver::finalize ()
10117 params_c_finalize ();
10118 diagnostic_finish (global_dc
);
10121 at_file_supplied
= 0;
10122 print_help_list
= 0;
10124 verbose_only_flag
= 0;
10125 print_subprocess_help
= 0;
10127 report_times_to_file
= NULL
;
10128 target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
10129 target_system_root_changed
= 0;
10130 target_sysroot_suffix
= 0;
10131 target_sysroot_hdrs_suffix
= 0;
10132 save_temps_flag
= SAVE_TEMPS_NONE
;
10133 save_temps_prefix
= 0;
10134 save_temps_length
= 0;
10135 spec_machine
= DEFAULT_TARGET_MACHINE
;
10136 greatest_status
= 1;
10138 finalize_options_struct (&global_options
);
10139 finalize_options_struct (&global_options_set
);
10141 obstack_free (&obstack
, NULL
);
10142 obstack_free (&opts_obstack
, NULL
); /* in opts.c */
10143 obstack_free (&collect_obstack
, NULL
);
10145 link_command_spec
= LINK_COMMAND_SPEC
;
10147 obstack_free (&multilib_obstack
, NULL
);
10149 user_specs_head
= NULL
;
10150 user_specs_tail
= NULL
;
10152 /* Within the "compilers" vec, the fields "suffix" and "spec" were
10153 statically allocated for the default compilers, but dynamically
10154 allocated for additional compilers. Delete them for the latter. */
10155 for (int i
= n_default_compilers
; i
< n_compilers
; i
++)
10157 free (const_cast <char *> (compilers
[i
].suffix
));
10158 free (const_cast <char *> (compilers
[i
].spec
));
10160 XDELETEVEC (compilers
);
10164 linker_options
.truncate (0);
10165 assembler_options
.truncate (0);
10166 preprocessor_options
.truncate (0);
10168 path_prefix_reset (&exec_prefixes
);
10169 path_prefix_reset (&startfile_prefixes
);
10170 path_prefix_reset (&include_prefixes
);
10172 machine_suffix
= 0;
10173 just_machine_suffix
= 0;
10174 gcc_exec_prefix
= 0;
10175 gcc_libexec_prefix
= 0;
10176 md_exec_prefix
= MD_EXEC_PREFIX
;
10177 md_startfile_prefix
= MD_STARTFILE_PREFIX
;
10178 md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
10180 multilib_os_dir
= 0;
10183 /* Free any specs dynamically-allocated by set_spec.
10184 These will be at the head of the list, before the
10185 statically-allocated ones. */
10188 while (specs
!= static_specs
)
10190 spec_list
*next
= specs
->next
;
10191 free (const_cast <char *> (specs
->name
));
10197 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
10199 spec_list
*sl
= &static_specs
[i
];
10203 free (const_cast <char *> (*(sl
->ptr_spec
)));
10204 sl
->alloc_p
= false;
10206 *(sl
->ptr_spec
) = sl
->default_ptr
;
10209 extra_specs
= NULL
;
10212 processing_spec_function
= 0;
10220 execution_count
= 0;
10223 temp_filename
= NULL
;
10224 temp_filename_length
= 0;
10225 always_delete_queue
= NULL
;
10226 failure_delete_queue
= NULL
;
10228 XDELETEVEC (switches
);
10231 n_switches_alloc
= 0;
10234 compare_debug_second
= 0;
10235 compare_debug_opt
= NULL
;
10236 for (int i
= 0; i
< 2; i
++)
10238 switches_debug_check
[i
] = NULL
;
10239 n_switches_debug_check
[i
] = 0;
10240 n_switches_alloc_debug_check
[i
] = 0;
10241 debug_check_temp_file
[i
] = NULL
;
10244 XDELETEVEC (infiles
);
10247 n_infiles_alloc
= 0;
10249 combine_inputs
= false;
10250 added_libraries
= 0;
10251 XDELETEVEC (outfiles
);
10254 last_language_n_infiles
= 0;
10255 gcc_input_filename
= NULL
;
10256 input_file_number
= 0;
10257 input_filename_length
= 0;
10258 basename_length
= 0;
10259 suffixed_basename_length
= 0;
10260 input_basename
= NULL
;
10261 input_suffix
= NULL
;
10262 /* We don't need to purge "input_stat", just to unset "input_stat_set". */
10263 input_stat_set
= 0;
10264 input_file_compiler
= NULL
;
10266 delete_this_arg
= 0;
10267 this_is_output_file
= 0;
10268 this_is_library_file
= 0;
10269 this_is_linker_script
= 0;
10270 input_from_pipe
= 0;
10271 suffix_subst
= NULL
;
10276 debug_auxbase_opt
= NULL
;
10278 used_arg
.finalize ();
10282 Targets can provide configure-time default options in
10283 OPTION_DEFAULT_SPECS. The jit needs to access these, but
10284 they are expressed in the spec language.
10286 Run just enough of the driver to be able to expand these
10287 specs, and then call the callback CB on each
10288 such option. The options strings are *without* a leading
10289 '-' character e.g. ("march=x86-64"). Finally, clean up. */
10292 driver_get_configure_time_options (void (*cb
) (const char *option
,
10298 obstack_init (&obstack
);
10299 init_opts_obstack ();
10302 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
10303 do_option_spec (option_default_specs
[i
].name
,
10304 option_default_specs
[i
].spec
);
10306 for (i
= 0; (int) i
< n_switches
; i
++)
10308 gcc_assert (switches
[i
].part1
);
10309 (*cb
) (switches
[i
].part1
, user_data
);
10312 obstack_free (&opts_obstack
, NULL
);
10313 obstack_free (&obstack
, NULL
);