1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2017 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 /* This program is the user interface to the C compiler and possibly to
21 other compilers. It is used because compilation is a complicated procedure
22 which involves running several programs and passing temporary files between
23 them, forwarding the users switches to those programs selectively,
24 and deleting the temporary files at the end.
26 CC recognizes how to compile each input file by suffixes in the file names.
27 Once it knows which kind of compilation to perform, the procedure for
28 compilation is specified by a string called a "spec". */
32 #include "coretypes.h"
33 #include "multilib.h" /* before tm.h */
40 #include "diagnostic.h"
44 #include "filenames.h"
45 #include "spellcheck.h"
49 /* Manage the manipulation of env vars.
51 We poison "getenv" and "putenv", so that all enviroment-handling is
52 done through this class. Note that poisoning happens in the
53 preprocessor at the identifier level, and doesn't distinguish between
57 Hence we need to use "get" for the accessor method, not "getenv". */
62 void init (bool can_restore
, bool debug
);
63 const char *get (const char *name
);
64 void xput (const char *string
);
79 /* The singleton instance of class env_manager. */
81 static env_manager env
;
83 /* Initializer for class env_manager.
85 We can't do this as a constructor since we have a statically
86 allocated instance ("env" above). */
89 env_manager::init (bool can_restore
, bool debug
)
91 m_can_restore
= can_restore
;
95 /* Get the value of NAME within the environment. Essentially
96 a wrapper for ::getenv, but adding logging, and the possibility
97 of caching results. */
100 env_manager::get (const char *name
)
102 const char *result
= ::getenv (name
);
104 fprintf (stderr
, "env_manager::getenv (%s) -> %s\n", name
, result
);
108 /* Put the given KEY=VALUE entry STRING into the environment.
109 If the env_manager was initialized with CAN_RESTORE set, then
110 also record the old value of KEY within the environment, so that it
111 can be later restored. */
114 env_manager::xput (const char *string
)
117 fprintf (stderr
, "env_manager::xput (%s)\n", string
);
119 fnotice (stderr
, "%s\n", string
);
123 char *equals
= strchr (const_cast <char *> (string
), '=');
127 kv
.m_key
= xstrndup (string
, equals
- string
);
128 const char *cur_value
= ::getenv (kv
.m_key
);
130 fprintf (stderr
, "saving old value: %s\n",cur_value
);
131 kv
.m_value
= cur_value
? xstrdup (cur_value
) : NULL
;
132 m_keys
.safe_push (kv
);
135 ::putenv (CONST_CAST (char *, string
));
138 /* Undo any xputenv changes made since last restore.
139 Can only be called if the env_manager was initialized with
140 CAN_RESTORE enabled. */
143 env_manager::restore ()
148 gcc_assert (m_can_restore
);
150 FOR_EACH_VEC_ELT_REVERSE (m_keys
, i
, item
)
153 printf ("restoring saved key: %s value: %s\n", item
->m_key
, item
->m_value
);
155 ::setenv (item
->m_key
, item
->m_value
, 1);
157 ::unsetenv (item
->m_key
);
159 free (item
->m_value
);
165 /* Forbid other uses of getenv and putenv. */
166 #if (GCC_VERSION >= 3000)
167 #pragma GCC poison getenv putenv
172 /* By default there is no special suffix for target executables. */
173 #ifdef TARGET_EXECUTABLE_SUFFIX
174 #define HAVE_TARGET_EXECUTABLE_SUFFIX
176 #define TARGET_EXECUTABLE_SUFFIX ""
179 /* By default there is no special suffix for host executables. */
180 #ifdef HOST_EXECUTABLE_SUFFIX
181 #define HAVE_HOST_EXECUTABLE_SUFFIX
183 #define HOST_EXECUTABLE_SUFFIX ""
186 /* By default, the suffix for target object files is ".o". */
187 #ifdef TARGET_OBJECT_SUFFIX
188 #define HAVE_TARGET_OBJECT_SUFFIX
190 #define TARGET_OBJECT_SUFFIX ".o"
193 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
195 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
196 #ifndef LIBRARY_PATH_ENV
197 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
200 /* If a stage of compilation returns an exit status >= 1,
201 compilation of that file ceases. */
203 #define MIN_FATAL_STATUS 1
205 /* Flag set by cppspec.c to 1. */
208 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
209 static bool at_file_supplied
;
211 /* Definition of string containing the arguments given to configure. */
212 #include "configargs.h"
214 /* Flag saying to print the command line options understood by gcc and its
217 static int print_help_list
;
219 /* Flag saying to print the version of gcc and its sub-processes. */
221 static int print_version
;
223 /* Flag indicating whether we should ONLY print the command and
224 arguments (like verbose_flag) without executing the command.
225 Displayed arguments are quoted so that the generated command
226 line is suitable for execution. This is intended for use in
227 shell scripts to capture the driver-generated command line. */
228 static int verbose_only_flag
;
230 /* Flag indicating how to print command line options of sub-processes. */
232 static int print_subprocess_help
;
234 /* Linker suffix passed to -fuse-ld=... */
235 static const char *use_ld
;
237 /* Whether we should report subprocess execution times to a file. */
239 FILE *report_times_to_file
= NULL
;
241 /* Nonzero means place this string before uses of /, so that include
242 and library files can be found in an alternate location. */
244 #ifdef TARGET_SYSTEM_ROOT
245 #define DEFAULT_TARGET_SYSTEM_ROOT (TARGET_SYSTEM_ROOT)
247 #define DEFAULT_TARGET_SYSTEM_ROOT (0)
249 static const char *target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
251 /* Nonzero means pass the updated target_system_root to the compiler. */
253 static int target_system_root_changed
;
255 /* Nonzero means append this string to target_system_root. */
257 static const char *target_sysroot_suffix
= 0;
259 /* Nonzero means append this string to target_system_root for headers. */
261 static const char *target_sysroot_hdrs_suffix
= 0;
263 /* Nonzero means write "temp" files in source directory
264 and use the source file's name in them, and don't delete them. */
266 static enum save_temps
{
267 SAVE_TEMPS_NONE
, /* no -save-temps */
268 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
269 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
272 /* Output file to use to get the object directory for -save-temps=obj */
273 static char *save_temps_prefix
= 0;
274 static size_t save_temps_length
= 0;
276 /* The compiler version. */
278 static const char *compiler_version
;
280 /* The target version. */
282 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
284 /* The target machine. */
286 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
287 static const char *spec_host_machine
= DEFAULT_REAL_TARGET_MACHINE
;
289 /* List of offload targets. Separated by colon. Empty string for
290 -foffload=disable. */
292 static char *offload_targets
= NULL
;
294 /* Nonzero if cross-compiling.
295 When -b is used, the value comes from the `specs' file. */
297 #ifdef CROSS_DIRECTORY_STRUCTURE
298 static const char *cross_compile
= "1";
300 static const char *cross_compile
= "0";
303 /* Greatest exit code of sub-processes that has been encountered up to
305 static int greatest_status
= 1;
307 /* This is the obstack which we use to allocate many strings. */
309 static struct obstack obstack
;
311 /* This is the obstack to build an environment variable to pass to
312 collect2 that describes all of the relevant switches of what to
313 pass the compiler in building the list of pointers to constructors
316 static struct obstack collect_obstack
;
318 /* Forward declaration for prototypes. */
322 static void init_spec (void);
323 static void store_arg (const char *, int, int);
324 static void insert_wrapper (const char *);
325 static char *load_specs (const char *);
326 static void read_specs (const char *, bool, bool);
327 static void set_spec (const char *, const char *, bool);
328 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
329 static char *build_search_list (const struct path_prefix
*, const char *,
331 static void xputenv (const char *);
332 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
334 static int access_check (const char *, int);
335 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
336 static void add_prefix (struct path_prefix
*, const char *, const char *,
338 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
339 const char *, int, int, int);
340 static char *skip_whitespace (char *);
341 static void delete_if_ordinary (const char *);
342 static void delete_temp_files (void);
343 static void delete_failure_queue (void);
344 static void clear_failure_queue (void);
345 static int check_live_switch (int, int);
346 static const char *handle_braces (const char *);
347 static inline bool input_suffix_matches (const char *, const char *);
348 static inline bool switch_matches (const char *, const char *, int);
349 static inline void mark_matching_switches (const char *, const char *, int);
350 static inline void process_marked_switches (void);
351 static const char *process_brace_body (const char *, const char *, const char *, int, int);
352 static const struct spec_function
*lookup_spec_function (const char *);
353 static const char *eval_spec_function (const char *, const char *);
354 static const char *handle_spec_function (const char *, bool *);
355 static char *save_string (const char *, int);
356 static void set_collect_gcc_options (void);
357 static int do_spec_1 (const char *, int, const char *);
358 static int do_spec_2 (const char *);
359 static void do_option_spec (const char *, const char *);
360 static void do_self_spec (const char *);
361 static const char *find_file (const char *);
362 static int is_directory (const char *, bool);
363 static const char *validate_switches (const char *, bool);
364 static void validate_all_switches (void);
365 static inline void validate_switches_from_spec (const char *, bool);
366 static void give_switch (int, int);
367 static int default_arg (const char *, int);
368 static void set_multilib_dir (void);
369 static void print_multilib_info (void);
370 static void perror_with_name (const char *);
371 static void display_help (void);
372 static void add_preprocessor_option (const char *, int);
373 static void add_assembler_option (const char *, int);
374 static void add_linker_option (const char *, int);
375 static void process_command (unsigned int, struct cl_decoded_option
*);
376 static int execute (void);
377 static void alloc_args (void);
378 static void clear_args (void);
379 static void fatal_signal (int);
380 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
381 static void init_gcc_specs (struct obstack
*, const char *, const char *,
384 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
385 static const char *convert_filename (const char *, int, int);
388 static void try_generate_repro (const char **argv
);
389 static const char *getenv_spec_function (int, const char **);
390 static const char *if_exists_spec_function (int, const char **);
391 static const char *if_exists_else_spec_function (int, const char **);
392 static const char *sanitize_spec_function (int, const char **);
393 static const char *replace_outfile_spec_function (int, const char **);
394 static const char *remove_outfile_spec_function (int, const char **);
395 static const char *version_compare_spec_function (int, const char **);
396 static const char *include_spec_function (int, const char **);
397 static const char *find_file_spec_function (int, const char **);
398 static const char *find_plugindir_spec_function (int, const char **);
399 static const char *print_asm_header_spec_function (int, const char **);
400 static const char *compare_debug_dump_opt_spec_function (int, const char **);
401 static const char *compare_debug_self_opt_spec_function (int, const char **);
402 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
403 static const char *pass_through_libs_spec_func (int, const char **);
404 static const char *replace_extension_spec_func (int, const char **);
405 static const char *greater_than_spec_func (int, const char **);
406 static const char *debug_level_greater_than_spec_func (int, const char **);
407 static char *convert_white_space (char *);
409 /* The Specs Language
411 Specs are strings containing lines, each of which (if not blank)
412 is made up of a program name, and arguments separated by spaces.
413 The program name must be exact and start from root, since no path
414 is searched and it is unreliable to depend on the current working directory.
415 Redirection of input or output is not supported; the subprograms must
416 accept filenames saying what files to read and write.
418 In addition, the specs can contain %-sequences to substitute variable text
419 or for conditional text. Here is a table of all defined %-sequences.
420 Note that spaces are not generated automatically around the results of
421 expanding these sequences; therefore, you can concatenate them together
422 or with constant text in a single argument.
424 %% substitute one % into the program name or argument.
425 %i substitute the name of the input file being processed.
426 %b substitute the basename of the input file being processed.
427 This is the substring up to (and not including) the last period
428 and not including the directory unless -save-temps was specified
429 to put temporaries in a different location.
430 %B same as %b, but include the file suffix (text after the last period).
432 substitute a file name that has suffix SUFFIX and is chosen
433 once per compilation, and mark the argument a la %d. To reduce
434 exposure to denial-of-service attacks, the file name is now
435 chosen in a way that is hard to predict even when previously
436 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
437 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
438 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
439 had been pre-processed. Previously, %g was simply substituted
440 with a file name chosen once per compilation, without regard
441 to any appended suffix (which was therefore treated just like
442 ordinary text), making such attacks more likely to succeed.
444 like %g, but if -pipe is in effect, expands simply to "-".
446 like %g, but if -pipe is in effect, expands to nothing. (We have both
447 %| and %m to accommodate differences between system assemblers; see
448 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
450 like %g, but generates a new temporary file name even if %uSUFFIX
453 substitutes the last file name generated with %uSUFFIX, generating a
454 new one if there is no such last file name. In the absence of any
455 %uSUFFIX, this is just like %gSUFFIX, except they don't share
456 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
457 would involve the generation of two distinct file names, one
458 for each `%g.s' and another for each `%U.s'. Previously, %U was
459 simply substituted with a file name chosen for the previous %u,
460 without regard to any appended suffix.
462 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
463 writable, and if save-temps is off; otherwise, substitute the name
464 of a temporary file, just like %u. This temporary file is not
465 meant for communication between processes, but rather as a junk
468 substitutes .SUFFIX for the suffixes of a matched switch's args when
469 it is subsequently output with %*. SUFFIX is terminated by the next
471 %d marks the argument containing or following the %d as a
472 temporary file name, so that file will be deleted if GCC exits
473 successfully. Unlike %g, this contributes no text to the argument.
474 %w marks the argument containing or following the %w as the
475 "output file" of this compilation. This puts the argument
476 into the sequence of arguments that %o will substitute later.
477 %V indicates that this compilation produces no "output file".
479 like %{...} but mark last argument supplied within
480 as a file to be deleted on failure.
481 %o substitutes the names of all the output files, with spaces
482 automatically placed around them. You should write spaces
483 around the %o as well or the results are undefined.
484 %o is for use in the specs for running the linker.
485 Input files whose names have no recognized suffix are not compiled
486 at all, but they are included among the output files, so they will
488 %O substitutes the suffix for object files. Note that this is
489 handled specially when it immediately follows %g, %u, or %U
490 (with or without a suffix argument) because of the need for
491 those to form complete file names. The handling is such that
492 %O is treated exactly as if it had already been substituted,
493 except that %g, %u, and %U do not currently support additional
494 SUFFIX characters following %O as they would following, for
496 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
497 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
498 and -B options) and -imultilib as necessary.
499 %s current argument is the name of a library or startup file of some sort.
500 Search for that file in a standard list of directories
501 and substitute the full name found.
502 %eSTR Print STR as an error message. STR is terminated by a newline.
503 Use this when inconsistent options are detected.
504 %nSTR Print STR as a notice. STR is terminated by a newline.
505 %x{OPTION} Accumulate an option for %X.
506 %X Output the accumulated linker options specified by compilations.
507 %Y Output the accumulated assembler options specified by compilations.
508 %Z Output the accumulated preprocessor options specified by compilations.
509 %a process ASM_SPEC as a spec.
510 This allows config.h to specify part of the spec for running as.
511 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
512 used here. This can be used to run a post-processor after the
513 assembler has done its job.
514 %D Dump out a -L option for each directory in startfile_prefixes.
515 If multilib_dir is set, extra entries are generated with it affixed.
516 %l process LINK_SPEC as a spec.
517 %L process LIB_SPEC as a spec.
518 %M Output multilib_os_dir.
519 %G process LIBGCC_SPEC as a spec.
520 %R Output the concatenation of target_system_root and
521 target_sysroot_suffix.
522 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
523 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
524 %C process CPP_SPEC as a spec.
525 %1 process CC1_SPEC as a spec.
526 %2 process CC1PLUS_SPEC as a spec.
527 %* substitute the variable part of a matched option. (See below.)
528 Note that each comma in the substituted string is replaced by
529 a single space. A space is appended after the last substition
530 unless there is more text in current sequence.
531 %<S remove all occurrences of -S from the command line.
532 Note - this command is position dependent. % commands in the
533 spec string before this one will see -S, % commands in the
534 spec string after this one will not.
535 %>S Similar to "%<S", but keep it in the GCC command line.
536 %<S* remove all occurrences of all switches beginning with -S from the
539 Call the named function FUNCTION, passing it ARGS. ARGS is
540 first processed as a nested spec string, then split into an
541 argument vector in the usual fashion. The function returns
542 a string which is processed as if it had appeared literally
543 as part of the current spec.
544 %{S} substitutes the -S switch, if that switch was given to GCC.
545 If that switch was not specified, this substitutes nothing.
546 Here S is a metasyntactic variable.
547 %{S*} substitutes all the switches specified to GCC whose names start
548 with -S. This is used for -o, -I, etc; switches that take
549 arguments. GCC considers `-o foo' as being one switch whose
550 name starts with `o'. %{o*} would substitute this text,
551 including the space; thus, two arguments would be generated.
552 %{S*&T*} likewise, but preserve order of S and T options (the order
553 of S and T in the spec is not significant). Can be any number
554 of ampersand-separated variables; for each the wild card is
555 optional. Useful for CPP as %{D*&U*&A*}.
557 %{S:X} substitutes X, if the -S switch was given to GCC.
558 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
559 %{S*:X} substitutes X if one or more switches whose names start
560 with -S was given to GCC. Normally X is substituted only
561 once, no matter how many such switches appeared. However,
562 if %* appears somewhere in X, then X will be substituted
563 once for each matching switch, with the %* replaced by the
564 part of that switch that matched the '*'. A space will be
565 appended after the last substition unless there is more
566 text in current sequence.
567 %{.S:X} substitutes X, if processing a file with suffix S.
568 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
569 %{,S:X} substitutes X, if processing a file which will use spec S.
570 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
572 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
573 combined with '!', '.', ',', and '*' as above binding stronger
575 If %* appears in X, all of the alternatives must be starred, and
576 only the first matching alternative is substituted.
577 %{%:function(args):X}
578 Call function named FUNCTION with args ARGS. If the function
579 returns non-NULL, then X is substituted, if it returns
580 NULL, it isn't substituted.
581 %{S:X; if S was given to GCC, substitutes X;
582 T:Y; else if T was given to GCC, substitutes Y;
583 :D} else substitutes D. There can be as many clauses as you need.
584 This may be combined with '.', '!', ',', '|', and '*' as above.
586 %(Spec) processes a specification defined in a specs file as *Spec:
588 The switch matching text S in a %{S}, %{S:X}, or similar construct can use
589 a backslash to ignore the special meaning of the character following it,
590 thus allowing literal matching of a character that is otherwise specially
591 treated. For example, %{std=iso9899\:1999:X} substitutes X if the
592 -std=iso9899:1999 option is given.
594 The conditional text X in a %{S:X} or similar construct may contain
595 other nested % constructs or spaces, or even newlines. They are
596 processed as usual, as described above. Trailing white space in X is
597 ignored. White space may also appear anywhere on the left side of the
598 colon in these constructs, except between . or * and the corresponding
601 The -O, -f, -g, -m, and -W switches are handled specifically in these
602 constructs. If another value of -O or the negated form of a -f, -m, or
603 -W switch is found later in the command line, the earlier switch
604 value is ignored, except with {S*} where S is just one letter; this
605 passes all matching options.
607 The character | at the beginning of the predicate text is used to indicate
608 that a command should be piped to the following command, but only if -pipe
611 Note that it is built into GCC which switches take arguments and which
612 do not. You might think it would be useful to generalize this to
613 allow each compiler's spec to say which switches take arguments. But
614 this cannot be done in a consistent fashion. GCC cannot even decide
615 which input files have been specified without knowing which switches
616 take arguments, and it must know which input files to compile in order
617 to tell which compilers to run.
619 GCC also knows implicitly that arguments starting in `-l' are to be
620 treated as compiler output files, and passed to the linker in their
621 proper position among the other output files. */
623 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
625 /* config.h can define ASM_SPEC to provide extra args to the assembler
626 or extra switch-translations. */
631 /* config.h can define ASM_FINAL_SPEC to run a post processor after
632 the assembler has run. */
633 #ifndef ASM_FINAL_SPEC
634 #define ASM_FINAL_SPEC \
636 objcopy --extract-dwo \
637 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
638 %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} \n\
639 objcopy --strip-dwo \
640 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} \
644 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
645 or extra switch-translations. */
650 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
651 or extra switch-translations. */
656 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
657 or extra switch-translations. */
659 #define CC1PLUS_SPEC ""
662 /* config.h can define LINK_SPEC to provide extra args to the linker
663 or extra switch-translations. */
668 /* config.h can define LIB_SPEC to override the default libraries. */
670 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
673 /* When using -fsplit-stack we need to wrap pthread_create, in order
674 to initialize the stack guard. We always use wrapping, rather than
675 shared library ordering, and we keep the wrapper function in
676 libgcc. This is not yet a real spec, though it could become one;
677 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
678 only works with GNU ld and gold. */
679 #ifdef HAVE_GOLD_NON_DEFAULT_SPLIT_STACK
680 #define STACK_SPLIT_SPEC " %{fsplit-stack: -fuse-ld=gold --wrap=pthread_create}"
682 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
686 #define STATIC_LIBASAN_LIBS \
687 " %{static-libasan:%:include(libsanitizer.spec)%(link_libasan)}"
688 #ifdef LIBASAN_EARLY_SPEC
689 #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
690 #elif defined(HAVE_LD_STATIC_DYNAMIC)
691 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
692 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
695 #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
699 #ifndef LIBASAN_EARLY_SPEC
700 #define LIBASAN_EARLY_SPEC ""
704 #define STATIC_LIBTSAN_LIBS \
705 " %{static-libtsan:%:include(libsanitizer.spec)%(link_libtsan)}"
706 #ifdef LIBTSAN_EARLY_SPEC
707 #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
708 #elif defined(HAVE_LD_STATIC_DYNAMIC)
709 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
710 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
713 #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
717 #ifndef LIBTSAN_EARLY_SPEC
718 #define LIBTSAN_EARLY_SPEC ""
722 #define STATIC_LIBLSAN_LIBS \
723 " %{static-liblsan:%:include(libsanitizer.spec)%(link_liblsan)}"
724 #ifdef LIBLSAN_EARLY_SPEC
725 #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
726 #elif defined(HAVE_LD_STATIC_DYNAMIC)
727 #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
728 "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
731 #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
735 #ifndef LIBLSAN_EARLY_SPEC
736 #define LIBLSAN_EARLY_SPEC ""
739 #ifndef LIBUBSAN_SPEC
740 #define STATIC_LIBUBSAN_LIBS \
741 " %{static-libubsan:%:include(libsanitizer.spec)%(link_libubsan)}"
742 #ifdef HAVE_LD_STATIC_DYNAMIC
743 #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
744 "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
747 #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
751 /* Linker options for compressed debug sections. */
752 #if HAVE_LD_COMPRESS_DEBUG == 0
753 /* No linker support. */
754 #define LINK_COMPRESS_DEBUG_SPEC \
755 " %{gz*:%e-gz is not supported in this configuration} "
756 #elif HAVE_LD_COMPRESS_DEBUG == 1
757 /* GNU style on input, GNU ld options. Reject, not useful. */
758 #define LINK_COMPRESS_DEBUG_SPEC \
759 " %{gz*:%e-gz is not supported in this configuration} "
760 #elif HAVE_LD_COMPRESS_DEBUG == 2
761 /* GNU style, GNU gold options. */
762 #define LINK_COMPRESS_DEBUG_SPEC \
763 " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
764 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
765 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
766 #elif HAVE_LD_COMPRESS_DEBUG == 3
767 /* ELF gABI style. */
768 #define LINK_COMPRESS_DEBUG_SPEC \
769 " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
770 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
771 " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
773 #error Unknown value for HAVE_LD_COMPRESS_DEBUG.
776 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
779 #if defined(REAL_LIBGCC_SPEC)
780 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
781 #elif defined(LINK_LIBGCC_SPECIAL_1)
782 /* Have gcc do the search for libgcc.a. */
783 #define LIBGCC_SPEC "libgcc.a%s"
785 #define LIBGCC_SPEC "-lgcc"
789 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
790 #ifndef STARTFILE_SPEC
791 #define STARTFILE_SPEC \
792 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
795 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
797 #define ENDFILE_SPEC ""
801 #define LINKER_NAME "collect2"
804 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
805 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
810 /* Assembler options for compressed debug sections. */
811 #if HAVE_LD_COMPRESS_DEBUG < 2
812 /* Reject if the linker cannot write compressed debug sections. */
813 #define ASM_COMPRESS_DEBUG_SPEC \
814 " %{gz*:%e-gz is not supported in this configuration} "
815 #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */
816 #if HAVE_AS_COMPRESS_DEBUG == 0
817 /* No assembler support. Ignore silently. */
818 #define ASM_COMPRESS_DEBUG_SPEC \
820 #elif HAVE_AS_COMPRESS_DEBUG == 1
821 /* GNU style, GNU as options. */
822 #define ASM_COMPRESS_DEBUG_SPEC \
823 " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \
824 " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \
825 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
826 #elif HAVE_AS_COMPRESS_DEBUG == 2
827 /* ELF gABI style. */
828 #define ASM_COMPRESS_DEBUG_SPEC \
829 " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
830 " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
831 " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
833 #error Unknown value for HAVE_AS_COMPRESS_DEBUG.
835 #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */
837 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
839 #ifndef ASM_DEBUG_SPEC
840 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
841 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
842 # define ASM_DEBUG_SPEC \
843 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
844 ? "%{%:debug-level-gt(0):" \
845 "%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \
846 : "%{%:debug-level-gt(0):" \
847 "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
849 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
850 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gstabs}}" ASM_MAP
852 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
853 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gdwarf2}}" ASM_MAP
857 #ifndef ASM_DEBUG_SPEC
858 # define ASM_DEBUG_SPEC ""
861 /* Here is the spec for running the linker, after compiling all files. */
863 /* This is overridable by the target in case they need to specify the
864 -lgcc and -lc order specially, yet not require them to override all
865 of LINK_COMMAND_SPEC. */
866 #ifndef LINK_GCC_C_SEQUENCE_SPEC
867 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
870 #ifndef LINK_SSP_SPEC
871 #ifdef TARGET_LIBC_PROVIDES_SSP
872 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
873 "|fstack-protector-strong|fstack-protector-explicit:}"
875 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
876 "|fstack-protector-strong|fstack-protector-explicit" \
877 ":-lssp_nonshared -lssp}"
881 #ifdef ENABLE_DEFAULT_PIE
882 #define PIE_SPEC "!no-pie"
883 #define NO_FPIE1_SPEC "fno-pie"
884 #define FPIE1_SPEC NO_FPIE1_SPEC ":;"
885 #define NO_FPIE2_SPEC "fno-PIE"
886 #define FPIE2_SPEC NO_FPIE2_SPEC ":;"
887 #define NO_FPIE_SPEC NO_FPIE1_SPEC "|" NO_FPIE2_SPEC
888 #define FPIE_SPEC NO_FPIE_SPEC ":;"
889 #define NO_FPIC1_SPEC "fno-pic"
890 #define FPIC1_SPEC NO_FPIC1_SPEC ":;"
891 #define NO_FPIC2_SPEC "fno-PIC"
892 #define FPIC2_SPEC NO_FPIC2_SPEC ":;"
893 #define NO_FPIC_SPEC NO_FPIC1_SPEC "|" NO_FPIC2_SPEC
894 #define FPIC_SPEC NO_FPIC_SPEC ":;"
895 #define NO_FPIE1_AND_FPIC1_SPEC NO_FPIE1_SPEC "|" NO_FPIC1_SPEC
896 #define FPIE1_OR_FPIC1_SPEC NO_FPIE1_AND_FPIC1_SPEC ":;"
897 #define NO_FPIE2_AND_FPIC2_SPEC NO_FPIE2_SPEC "|" NO_FPIC2_SPEC
898 #define FPIE2_OR_FPIC2_SPEC NO_FPIE2_AND_FPIC2_SPEC ":;"
899 #define NO_FPIE_AND_FPIC_SPEC NO_FPIE_SPEC "|" NO_FPIC_SPEC
900 #define FPIE_OR_FPIC_SPEC NO_FPIE_AND_FPIC_SPEC ":;"
902 #define PIE_SPEC "pie"
903 #define FPIE1_SPEC "fpie"
904 #define NO_FPIE1_SPEC FPIE1_SPEC ":;"
905 #define FPIE2_SPEC "fPIE"
906 #define NO_FPIE2_SPEC FPIE2_SPEC ":;"
907 #define FPIE_SPEC FPIE1_SPEC "|" FPIE2_SPEC
908 #define NO_FPIE_SPEC FPIE_SPEC ":;"
909 #define FPIC1_SPEC "fpic"
910 #define NO_FPIC1_SPEC FPIC1_SPEC ":;"
911 #define FPIC2_SPEC "fPIC"
912 #define NO_FPIC2_SPEC FPIC2_SPEC ":;"
913 #define FPIC_SPEC FPIC1_SPEC "|" FPIC2_SPEC
914 #define NO_FPIC_SPEC FPIC_SPEC ":;"
915 #define FPIE1_OR_FPIC1_SPEC FPIE1_SPEC "|" FPIC1_SPEC
916 #define NO_FPIE1_AND_FPIC1_SPEC FPIE1_OR_FPIC1_SPEC ":;"
917 #define FPIE2_OR_FPIC2_SPEC FPIE2_SPEC "|" FPIC2_SPEC
918 #define NO_FPIE2_AND_FPIC2_SPEC FPIE1_OR_FPIC2_SPEC ":;"
919 #define FPIE_OR_FPIC_SPEC FPIE_SPEC "|" FPIC_SPEC
920 #define NO_FPIE_AND_FPIC_SPEC FPIE_OR_FPIC_SPEC ":;"
923 #ifndef LINK_PIE_SPEC
926 #define LD_PIE_SPEC "-pie"
929 #define LD_PIE_SPEC ""
931 #define LINK_PIE_SPEC "%{static|shared|r:;" PIE_SPEC ":" LD_PIE_SPEC "} "
934 #ifndef LINK_BUILDID_SPEC
935 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
936 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
940 /* Conditional to test whether the LTO plugin is used or not.
941 FIXME: For slim LTO we will need to enable plugin unconditionally. This
942 still cause problems with PLUGIN_LD != LD and when plugin is built but
943 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
944 plugin only when LTO is enabled. We still honor explicit
945 -fuse-linker-plugin if the linker used understands -plugin. */
947 /* The linker has some plugin support. */
948 #if HAVE_LTO_PLUGIN > 0
949 /* The linker used has full plugin support, use LTO plugin by default. */
950 #if HAVE_LTO_PLUGIN == 2
951 #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
952 #define PLUGIN_COND_CLOSE "}"
954 /* The linker used has limited plugin support, use LTO plugin with explicit
955 -fuse-linker-plugin. */
956 #define PLUGIN_COND "fuse-linker-plugin"
957 #define PLUGIN_COND_CLOSE ""
959 #define LINK_PLUGIN_SPEC \
961 -plugin %(linker_plugin_file) \
962 -plugin-opt=%(lto_wrapper) \
963 -plugin-opt=-fresolution=%u.res \
964 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
967 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
968 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
969 %e-fuse-linker-plugin is not supported in this configuration}"
972 /* Linker command line options for -fsanitize= early on the command line. */
973 #ifndef SANITIZER_EARLY_SPEC
974 #define SANITIZER_EARLY_SPEC "\
975 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
976 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
977 %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}"
980 /* Linker command line options for -fsanitize= late on the command line. */
981 #ifndef SANITIZER_SPEC
982 #define SANITIZER_SPEC "\
983 %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
984 %{static:%ecannot specify -static with -fsanitize=address}}\
985 %{%:sanitize(thread):" LIBTSAN_SPEC "\
986 %{static:%ecannot specify -static with -fsanitize=thread}}\
987 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
988 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}"
991 #ifndef POST_LINK_SPEC
992 #define POST_LINK_SPEC ""
995 /* This is the spec to use, once the code for creating the vtable
996 verification runtime library, libvtv.so, has been created. Currently
997 the vtable verification runtime functions are in libstdc++, so we use
998 the spec just below this one. */
999 #ifndef VTABLE_VERIFICATION_SPEC
1000 #if ENABLE_VTABLE_VERIFY
1001 #define VTABLE_VERIFICATION_SPEC "\
1002 %{!nostdlib:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
1003 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}"
1005 #define VTABLE_VERIFICATION_SPEC "\
1006 %{fvtable-verify=none:} \
1007 %{fvtable-verify=std: \
1008 %e-fvtable-verify=std is not supported in this configuration} \
1009 %{fvtable-verify=preinit: \
1010 %e-fvtable-verify=preinit is not supported in this configuration}"
1015 #define CHKP_SPEC ""
1018 /* -u* was put back because both BSD and SysV seem to support it. */
1019 /* %{static|no-pie|static-pie:} simply prevents an error message:
1020 1. If the target machine doesn't handle -static.
1021 2. If PIE isn't enabled by default.
1022 3. If the target machine doesn't handle -static-pie.
1024 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
1025 scripts which exist in user specified directories, or in standard
1027 /* We pass any -flto flags on to the linker, which is expected
1028 to understand them. In practice, this means it had better be collect2. */
1029 /* %{e*} includes -export-dynamic; see comment in common.opt. */
1030 #ifndef LINK_COMMAND_SPEC
1031 #define LINK_COMMAND_SPEC "\
1032 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
1035 "%{flto|flto=*:%<fcompare-debug*} \
1036 %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
1037 "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
1038 "%X %{o*} %{e*} %{N} %{n} %{r}\
1039 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} \
1040 %{static|no-pie|static-pie:} %{L*} %(mfwrap) %(link_libgcc) " \
1041 VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o " CHKP_SPEC " \
1042 %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
1043 %:include(libgomp.spec)%(link_gomp)}\
1044 %{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}\
1045 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
1046 %(mflib) " STACK_SPLIT_SPEC "\
1047 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
1048 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
1049 %{!nostdlib:%{!nostartfiles:%E}} %{T*} \n%(post_link) }}}}}}"
1052 #ifndef LINK_LIBGCC_SPEC
1053 /* Generate -L options for startfile prefix list. */
1054 # define LINK_LIBGCC_SPEC "%D"
1057 #ifndef STARTFILE_PREFIX_SPEC
1058 # define STARTFILE_PREFIX_SPEC ""
1061 #ifndef SYSROOT_SPEC
1062 # define SYSROOT_SPEC "--sysroot=%R"
1065 #ifndef SYSROOT_SUFFIX_SPEC
1066 # define SYSROOT_SUFFIX_SPEC ""
1069 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
1070 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
1073 static const char *asm_debug
= ASM_DEBUG_SPEC
;
1074 static const char *cpp_spec
= CPP_SPEC
;
1075 static const char *cc1_spec
= CC1_SPEC
;
1076 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
1077 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
1078 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
1079 static const char *asm_spec
= ASM_SPEC
;
1080 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
1081 static const char *link_spec
= LINK_SPEC
;
1082 static const char *lib_spec
= LIB_SPEC
;
1083 static const char *link_gomp_spec
= "";
1084 static const char *libgcc_spec
= LIBGCC_SPEC
;
1085 static const char *endfile_spec
= ENDFILE_SPEC
;
1086 static const char *startfile_spec
= STARTFILE_SPEC
;
1087 static const char *linker_name_spec
= LINKER_NAME
;
1088 static const char *linker_plugin_file_spec
= "";
1089 static const char *lto_wrapper_spec
= "";
1090 static const char *lto_gcc_spec
= "";
1091 static const char *post_link_spec
= POST_LINK_SPEC
;
1092 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
1093 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
1094 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
1095 static const char *sysroot_spec
= SYSROOT_SPEC
;
1096 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
1097 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
1098 static const char *self_spec
= "";
1100 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
1101 There should be no need to override these in target dependent files,
1102 but we need to copy them to the specs file so that newer versions
1103 of the GCC driver can correctly drive older tool chains with the
1104 appropriate -B options. */
1106 /* When cpplib handles traditional preprocessing, get rid of this, and
1107 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
1108 that we default the front end language better. */
1109 static const char *trad_capable_cpp
=
1110 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
1112 /* We don't wrap .d files in %W{} since a missing .d file, and
1113 therefore no dependency entry, confuses make into thinking a .o
1114 file that happens to exist is up-to-date. */
1115 static const char *cpp_unique_options
=
1116 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
1117 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
1118 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
1119 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
1120 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
1121 %{remap} %{g3|ggdb3|gstabs3|gxcoff3|gvms3:-dD}\
1122 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1123 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
1126 /* This contains cpp options which are common with cc1_options and are passed
1127 only when preprocessing only to avoid duplication. We pass the cc1 spec
1128 options to the preprocessor so that it the cc1 spec may manipulate
1129 options used to set target flags. Those special target flags settings may
1130 in turn cause preprocessor symbols to be defined specially. */
1131 static const char *cpp_options
=
1132 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
1133 %{f*} %{g*:%{%:debug-level-gt(0):%{g*}\
1134 %{!fno-working-directory:-fworking-directory}}} %{O*}\
1135 %{undef} %{save-temps*:-fpch-preprocess}";
1137 /* This contains cpp options which are not passed when the preprocessor
1138 output will be used by another program. */
1139 static const char *cpp_debug_options
= "%{d*}";
1141 /* NB: This is shared amongst all front-ends, except for Ada. */
1142 static const char *cc1_options
=
1143 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
1144 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1145 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\
1146 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
1147 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
1148 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
1149 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
1150 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
1151 %{-target-help:--target-help}\
1152 %{-version:--version}\
1153 %{-help=*:--help=%*}\
1154 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
1155 %{fsyntax-only:-o %j} %{-param*}\
1156 %{coverage:-fprofile-arcs -ftest-coverage}\
1157 %{fprofile-arcs|fprofile-generate*|coverage:\
1158 %{!fprofile-update=single:\
1159 %{pthread:-fprofile-update=prefer-atomic}}}";
1161 static const char *asm_options
=
1162 "%{-target-help:%:print-asm-header()} "
1164 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
1165 to the assembler equivalents. */
1166 "%{v} %{w:-W} %{I*} "
1168 ASM_COMPRESS_DEBUG_SPEC
1169 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
1171 static const char *invoke_as
=
1172 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1174 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1175 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
1179 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1180 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
1184 /* Some compilers have limits on line lengths, and the multilib_select
1185 and/or multilib_matches strings can be very long, so we build them at
1187 static struct obstack multilib_obstack
;
1188 static const char *multilib_select
;
1189 static const char *multilib_matches
;
1190 static const char *multilib_defaults
;
1191 static const char *multilib_exclusions
;
1192 static const char *multilib_reuse
;
1194 /* Check whether a particular argument is a default argument. */
1196 #ifndef MULTILIB_DEFAULTS
1197 #define MULTILIB_DEFAULTS { "" }
1200 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
1202 #ifndef DRIVER_SELF_SPECS
1203 #define DRIVER_SELF_SPECS ""
1206 /* Linking to libgomp implies pthreads. This is particularly important
1207 for targets that use different start files and suchlike. */
1208 #ifndef GOMP_SELF_SPECS
1209 #define GOMP_SELF_SPECS \
1210 "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \
1214 /* Likewise for -fgnu-tm. */
1215 #ifndef GTM_SELF_SPECS
1216 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1219 /* Likewise for -fcilkplus. */
1220 #ifndef CILK_SELF_SPECS
1221 #define CILK_SELF_SPECS "%{fcilkplus: -pthread}"
1224 static const char *const driver_self_specs
[] = {
1225 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1226 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
,
1230 #ifndef OPTION_DEFAULT_SPECS
1231 #define OPTION_DEFAULT_SPECS { "", "" }
1240 static const struct default_spec
1241 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1245 struct user_specs
*next
;
1246 const char *filename
;
1249 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1252 /* Record the mapping from file suffixes for compilation specs. */
1256 const char *suffix
; /* Use this compiler for input files
1257 whose names end in this suffix. */
1259 const char *spec
; /* To use this compiler, run this spec. */
1261 const char *cpp_spec
; /* If non-NULL, substitute this spec
1262 for `%C', rather than the usual
1264 int combinable
; /* If nonzero, compiler can deal with
1265 multiple source files at once (IMA). */
1266 int needs_preprocessing
; /* If nonzero, source files need to
1267 be run through a preprocessor. */
1270 /* Pointer to a vector of `struct compiler' that gives the spec for
1271 compiling a file, based on its suffix.
1272 A file that does not end in any of these suffixes will be passed
1273 unchanged to the loader and nothing else will be done to it.
1275 An entry containing two 0s is used to terminate the vector.
1277 If multiple entries match a file, the last matching one is used. */
1279 static struct compiler
*compilers
;
1281 /* Number of entries in `compilers', not counting the null terminator. */
1283 static int n_compilers
;
1285 /* The default list of file name suffixes and their compilation specs. */
1287 static const struct compiler default_compilers
[] =
1289 /* Add lists of suffixes of known languages here. If those languages
1290 were not present when we built the driver, we will hit these copies
1291 and be given a more meaningful error than "file not used since
1292 linking is not done". */
1293 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1294 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1295 {".mii", "#Objective-C++", 0, 0, 0},
1296 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1297 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1298 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1299 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1300 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1301 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1302 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1303 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1304 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1305 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1306 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1307 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1308 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1309 {".r", "#Ratfor", 0, 0, 0},
1310 {".go", "#Go", 0, 1, 0},
1311 /* Next come the entries for C. */
1312 {".c", "@c", 0, 0, 1},
1314 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1315 external preprocessor if -save-temps is given. */
1316 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1319 %eGNU C no longer supports -traditional without -E}\
1320 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1321 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1322 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1324 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1325 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1326 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1328 "%{!E:%e-E or -x required when input is from standard input}\
1329 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1330 {".h", "@c-header", 0, 0, 0},
1332 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1333 external preprocessor if -save-temps is given. */
1334 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1336 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1337 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1338 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1340 %{!fsyntax-only:%{!S:-o %g.s} \
1341 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1342 %W{o*:--output-pch=%*}}%V}}\
1343 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1344 cc1 %(cpp_unique_options) %(cc1_options)\
1345 %{!fsyntax-only:%{!S:-o %g.s} \
1346 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1347 %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
1348 {".i", "@cpp-output", 0, 0, 0},
1350 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1351 {".s", "@assembler", 0, 0, 0},
1353 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1354 {".sx", "@assembler-with-cpp", 0, 0, 0},
1355 {".S", "@assembler-with-cpp", 0, 0, 0},
1356 {"@assembler-with-cpp",
1357 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1358 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1359 %{E|M|MM:%(cpp_debug_options)}\
1360 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1361 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1363 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1364 %{E|M|MM:%(cpp_debug_options)}\
1365 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1366 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1371 /* Mark end of table. */
1375 /* Number of elements in default_compilers, not counting the terminator. */
1377 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1379 typedef char *char_p
; /* For DEF_VEC_P. */
1381 /* A vector of options to give to the linker.
1382 These options are accumulated by %x,
1383 and substituted into the linker command with %X. */
1384 static vec
<char_p
> linker_options
;
1386 /* A vector of options to give to the assembler.
1387 These options are accumulated by -Wa,
1388 and substituted into the assembler command with %Y. */
1389 static vec
<char_p
> assembler_options
;
1391 /* A vector of options to give to the preprocessor.
1392 These options are accumulated by -Wp,
1393 and substituted into the preprocessor command with %Z. */
1394 static vec
<char_p
> preprocessor_options
;
1397 skip_whitespace (char *p
)
1401 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1402 be considered whitespace. */
1403 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1405 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1419 /* Structures to keep track of prefixes to try when looking for files. */
1423 const char *prefix
; /* String to prepend to the path. */
1424 struct prefix_list
*next
; /* Next in linked list. */
1425 int require_machine_suffix
; /* Don't use without machine_suffix. */
1426 /* 2 means try both machine_suffix and just_machine_suffix. */
1427 int priority
; /* Sort key - priority within list. */
1428 int os_multilib
; /* 1 if OS multilib scheme should be used,
1429 0 for GCC multilib scheme. */
1434 struct prefix_list
*plist
; /* List of prefixes to try */
1435 int max_len
; /* Max length of a prefix in PLIST */
1436 const char *name
; /* Name of this list (used in config stuff) */
1439 /* List of prefixes to try when looking for executables. */
1441 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1443 /* List of prefixes to try when looking for startup (crt0) files. */
1445 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1447 /* List of prefixes to try when looking for include files. */
1449 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1451 /* Suffix to attach to directories searched for commands.
1452 This looks like `MACHINE/VERSION/'. */
1454 static const char *machine_suffix
= 0;
1456 /* Suffix to attach to directories searched for commands.
1457 This is just `MACHINE/'. */
1459 static const char *just_machine_suffix
= 0;
1461 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1463 static const char *gcc_exec_prefix
;
1465 /* Adjusted value of standard_libexec_prefix. */
1467 static const char *gcc_libexec_prefix
;
1469 /* Default prefixes to attach to command names. */
1471 #ifndef STANDARD_STARTFILE_PREFIX_1
1472 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1474 #ifndef STANDARD_STARTFILE_PREFIX_2
1475 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1478 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1479 #undef MD_EXEC_PREFIX
1480 #undef MD_STARTFILE_PREFIX
1481 #undef MD_STARTFILE_PREFIX_1
1484 /* If no prefixes defined, use the null string, which will disable them. */
1485 #ifndef MD_EXEC_PREFIX
1486 #define MD_EXEC_PREFIX ""
1488 #ifndef MD_STARTFILE_PREFIX
1489 #define MD_STARTFILE_PREFIX ""
1491 #ifndef MD_STARTFILE_PREFIX_1
1492 #define MD_STARTFILE_PREFIX_1 ""
1495 /* These directories are locations set at configure-time based on the
1496 --prefix option provided to configure. Their initializers are
1497 defined in Makefile.in. These paths are not *directly* used when
1498 gcc_exec_prefix is set because, in that case, we know where the
1499 compiler has been installed, and use paths relative to that
1500 location instead. */
1501 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1502 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1503 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1504 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1506 /* For native compilers, these are well-known paths containing
1507 components that may be provided by the system. For cross
1508 compilers, these paths are not used. */
1509 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1510 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1511 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1512 static const char *const standard_startfile_prefix_1
1513 = STANDARD_STARTFILE_PREFIX_1
;
1514 static const char *const standard_startfile_prefix_2
1515 = STANDARD_STARTFILE_PREFIX_2
;
1517 /* A relative path to be used in finding the location of tools
1518 relative to the driver. */
1519 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1521 /* A prefix to be used when this is an accelerator compiler. */
1522 static const char *const accel_dir_suffix
= ACCEL_DIR_SUFFIX
;
1524 /* Subdirectory to use for locating libraries. Set by
1525 set_multilib_dir based on the compilation options. */
1527 static const char *multilib_dir
;
1529 /* Subdirectory to use for locating libraries in OS conventions. Set by
1530 set_multilib_dir based on the compilation options. */
1532 static const char *multilib_os_dir
;
1534 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1535 set_multilib_dir based on the compilation options. */
1537 static const char *multiarch_dir
;
1539 /* Structure to keep track of the specs that have been defined so far.
1540 These are accessed using %(specname) in a compiler or link
1545 /* The following 2 fields must be first */
1546 /* to allow EXTRA_SPECS to be initialized */
1547 const char *name
; /* name of the spec. */
1548 const char *ptr
; /* available ptr if no static pointer */
1550 /* The following fields are not initialized */
1551 /* by EXTRA_SPECS */
1552 const char **ptr_spec
; /* pointer to the spec itself. */
1553 struct spec_list
*next
; /* Next spec in linked list. */
1554 int name_len
; /* length of the name */
1555 bool user_p
; /* whether string come from file spec. */
1556 bool alloc_p
; /* whether string was allocated */
1557 const char *default_ptr
; /* The default value of *ptr_spec. */
1560 #define INIT_STATIC_SPEC(NAME,PTR) \
1561 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false, \
1564 /* List of statically defined specs. */
1565 static struct spec_list static_specs
[] =
1567 INIT_STATIC_SPEC ("asm", &asm_spec
),
1568 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1569 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1570 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1571 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1572 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1573 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1574 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1575 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1576 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1577 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1578 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1579 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1580 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1581 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1582 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1583 INIT_STATIC_SPEC ("link", &link_spec
),
1584 INIT_STATIC_SPEC ("lib", &lib_spec
),
1585 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1586 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1587 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1588 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1589 INIT_STATIC_SPEC ("version", &compiler_version
),
1590 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1591 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1592 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1593 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1594 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1595 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1596 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1597 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1598 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1599 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1600 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1601 INIT_STATIC_SPEC ("post_link", &post_link_spec
),
1602 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1603 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1604 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1605 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1606 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1607 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1608 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1609 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1610 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1613 #ifdef EXTRA_SPECS /* additional specs needed */
1614 /* Structure to keep track of just the first two args of a spec_list.
1615 That is all that the EXTRA_SPECS macro gives us. */
1618 const char *const name
;
1619 const char *const ptr
;
1622 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1623 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1626 /* List of dynamically allocates specs that have been defined so far. */
1628 static struct spec_list
*specs
= (struct spec_list
*) 0;
1630 /* List of static spec functions. */
1632 static const struct spec_function static_spec_functions
[] =
1634 { "getenv", getenv_spec_function
},
1635 { "if-exists", if_exists_spec_function
},
1636 { "if-exists-else", if_exists_else_spec_function
},
1637 { "sanitize", sanitize_spec_function
},
1638 { "replace-outfile", replace_outfile_spec_function
},
1639 { "remove-outfile", remove_outfile_spec_function
},
1640 { "version-compare", version_compare_spec_function
},
1641 { "include", include_spec_function
},
1642 { "find-file", find_file_spec_function
},
1643 { "find-plugindir", find_plugindir_spec_function
},
1644 { "print-asm-header", print_asm_header_spec_function
},
1645 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1646 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1647 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1648 { "pass-through-libs", pass_through_libs_spec_func
},
1649 { "replace-extension", replace_extension_spec_func
},
1650 { "gt", greater_than_spec_func
},
1651 { "debug-level-gt", debug_level_greater_than_spec_func
},
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. */
1938 static vec
<const_char_p
> argbuf
;
1940 /* Were the options -c, -S or -E passed. */
1941 static int have_c
= 0;
1943 /* Was the option -o passed. */
1944 static int have_o
= 0;
1946 /* Was the option -E passed. */
1947 static int have_E
= 0;
1949 /* Pointer to output file name passed in with -o. */
1950 static const char *output_file
= 0;
1952 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1953 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1956 static struct temp_name
{
1957 const char *suffix
; /* suffix associated with the code. */
1958 int length
; /* strlen (suffix). */
1959 int unique
; /* Indicates whether %g or %u/%U was used. */
1960 const char *filename
; /* associated filename. */
1961 int filename_length
; /* strlen (filename). */
1962 struct temp_name
*next
;
1965 /* Number of commands executed so far. */
1967 static int execution_count
;
1969 /* Number of commands that exited with a signal. */
1971 static int signal_count
;
1973 /* Allocate the argument vector. */
1981 /* Clear out the vector of arguments (after a command is executed). */
1986 argbuf
.truncate (0);
1989 /* Add one argument to the vector at the end.
1990 This is done when a space is seen or at the end of the line.
1991 If DELETE_ALWAYS is nonzero, the arg is a filename
1992 and the file should be deleted eventually.
1993 If DELETE_FAILURE is nonzero, the arg is a filename
1994 and the file should be deleted if this compilation fails. */
1997 store_arg (const char *arg
, int delete_always
, int delete_failure
)
1999 argbuf
.safe_push (arg
);
2001 if (delete_always
|| delete_failure
)
2004 /* If the temporary file we should delete is specified as
2005 part of a joined argument extract the filename. */
2007 && (p
= strrchr (arg
, '=')))
2009 record_temp_file (arg
, delete_always
, delete_failure
);
2013 /* Load specs from a file name named FILENAME, replacing occurrences of
2014 various different types of line-endings, \r\n, \n\r and just \r, with
2018 load_specs (const char *filename
)
2022 struct stat statbuf
;
2029 fnotice (stderr
, "Reading specs from %s\n", filename
);
2031 /* Open and stat the file. */
2032 desc
= open (filename
, O_RDONLY
, 0);
2034 pfatal_with_name (filename
);
2035 if (stat (filename
, &statbuf
) < 0)
2036 pfatal_with_name (filename
);
2038 /* Read contents of file into BUFFER. */
2039 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2040 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2042 pfatal_with_name (filename
);
2043 buffer
[readlen
] = 0;
2046 specs
= XNEWVEC (char, readlen
+ 1);
2048 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2054 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2056 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2070 /* Read compilation specs from a file named FILENAME,
2071 replacing the default ones.
2073 A suffix which starts with `*' is a definition for
2074 one of the machine-specific sub-specs. The "suffix" should be
2075 *asm, *cc1, *cpp, *link, *startfile, etc.
2076 The corresponding spec is stored in asm_spec, etc.,
2077 rather than in the `compilers' vector.
2079 Anything invalid in the file is a fatal error. */
2082 read_specs (const char *filename
, bool main_p
, bool user_p
)
2087 buffer
= load_specs (filename
);
2089 /* Scan BUFFER for specs, putting them in the vector. */
2095 char *in
, *out
, *p1
, *p2
, *p3
;
2097 /* Advance P in BUFFER to the next nonblank nocomment line. */
2098 p
= skip_whitespace (p
);
2102 /* Is this a special command that starts with '%'? */
2103 /* Don't allow this for the main specs file, since it would
2104 encourage people to overwrite it. */
2105 if (*p
== '%' && !main_p
)
2108 while (*p
&& *p
!= '\n')
2114 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2115 && (p1
[sizeof "%include" - 1] == ' '
2116 || p1
[sizeof "%include" - 1] == '\t'))
2120 p1
+= sizeof ("%include");
2121 while (*p1
== ' ' || *p1
== '\t')
2124 if (*p1
++ != '<' || p
[-2] != '>')
2125 fatal_error (input_location
,
2126 "specs %%include syntax malformed after "
2128 (long) (p1
- buffer
+ 1));
2131 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2132 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
2135 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2136 && (p1
[sizeof "%include_noerr" - 1] == ' '
2137 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2141 p1
+= sizeof "%include_noerr";
2142 while (*p1
== ' ' || *p1
== '\t')
2145 if (*p1
++ != '<' || p
[-2] != '>')
2146 fatal_error (input_location
,
2147 "specs %%include syntax malformed after "
2149 (long) (p1
- buffer
+ 1));
2152 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2154 read_specs (new_filename
, false, user_p
);
2155 else if (verbose_flag
)
2156 fnotice (stderr
, "could not find specs file %s\n", p1
);
2159 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2160 && (p1
[sizeof "%rename" - 1] == ' '
2161 || p1
[sizeof "%rename" - 1] == '\t'))
2164 struct spec_list
*sl
;
2165 struct spec_list
*newsl
;
2167 /* Get original name. */
2168 p1
+= sizeof "%rename";
2169 while (*p1
== ' ' || *p1
== '\t')
2172 if (! ISALPHA ((unsigned char) *p1
))
2173 fatal_error (input_location
,
2174 "specs %%rename syntax malformed after "
2176 (long) (p1
- buffer
));
2179 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2182 if (*p2
!= ' ' && *p2
!= '\t')
2183 fatal_error (input_location
,
2184 "specs %%rename syntax malformed after "
2186 (long) (p2
- buffer
));
2190 while (*p2
== ' ' || *p2
== '\t')
2193 if (! ISALPHA ((unsigned char) *p2
))
2194 fatal_error (input_location
,
2195 "specs %%rename syntax malformed after "
2197 (long) (p2
- buffer
));
2199 /* Get new spec name. */
2201 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2205 fatal_error (input_location
,
2206 "specs %%rename syntax malformed after "
2208 (long) (p3
- buffer
));
2211 for (sl
= specs
; sl
; sl
= sl
->next
)
2212 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2216 fatal_error (input_location
,
2217 "specs %s spec was not found to be renamed", p1
);
2219 if (strcmp (p1
, p2
) == 0)
2222 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2223 if (strcmp (newsl
->name
, p2
) == 0)
2224 fatal_error (input_location
,
2225 "%s: attempt to rename spec %qs to "
2226 "already defined spec %qs",
2231 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
2233 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2237 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2239 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2241 *(sl
->ptr_spec
) = "";
2246 fatal_error (input_location
,
2247 "specs unknown %% command after %ld characters",
2248 (long) (p1
- buffer
));
2251 /* Find the colon that should end the suffix. */
2253 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2256 /* The colon shouldn't be missing. */
2258 fatal_error (input_location
,
2259 "specs file malformed after %ld characters",
2260 (long) (p1
- buffer
));
2262 /* Skip back over trailing whitespace. */
2264 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2267 /* Copy the suffix to a string. */
2268 suffix
= save_string (p
, p2
- p
);
2269 /* Find the next line. */
2270 p
= skip_whitespace (p1
+ 1);
2272 fatal_error (input_location
,
2273 "specs file malformed after %ld characters",
2274 (long) (p
- buffer
));
2277 /* Find next blank line or end of string. */
2278 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2281 /* Specs end at the blank line and do not include the newline. */
2282 spec
= save_string (p
, p1
- p
);
2285 /* Delete backslash-newline sequences from the spec. */
2290 if (in
[0] == '\\' && in
[1] == '\n')
2292 else if (in
[0] == '#')
2293 while (*in
&& *in
!= '\n')
2301 if (suffix
[0] == '*')
2303 if (! strcmp (suffix
, "*link_command"))
2304 link_command_spec
= spec
;
2307 set_spec (suffix
+ 1, spec
, user_p
);
2313 /* Add this pair to the vector. */
2315 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2317 compilers
[n_compilers
].suffix
= suffix
;
2318 compilers
[n_compilers
].spec
= spec
;
2320 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2324 link_command_spec
= spec
;
2327 if (link_command_spec
== 0)
2328 fatal_error (input_location
, "spec file has no spec for linking");
2330 XDELETEVEC (buffer
);
2333 /* Record the names of temporary files we tell compilers to write,
2334 and delete them at the end of the run. */
2336 /* This is the common prefix we use to make temp file names.
2337 It is chosen once for each run of this program.
2338 It is substituted into a spec by %g or %j.
2339 Thus, all temp file names contain this prefix.
2340 In practice, all temp file names start with this prefix.
2342 This prefix comes from the envvar TMPDIR if it is defined;
2343 otherwise, from the P_tmpdir macro if that is defined;
2344 otherwise, in /usr/tmp or /tmp;
2345 or finally the current directory if all else fails. */
2347 static const char *temp_filename
;
2349 /* Length of the prefix. */
2351 static int temp_filename_length
;
2353 /* Define the list of temporary files to delete. */
2358 struct temp_file
*next
;
2361 /* Queue of files to delete on success or failure of compilation. */
2362 static struct temp_file
*always_delete_queue
;
2363 /* Queue of files to delete on failure of compilation. */
2364 static struct temp_file
*failure_delete_queue
;
2366 /* Record FILENAME as a file to be deleted automatically.
2367 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2368 otherwise delete it in any case.
2369 FAIL_DELETE nonzero means delete it if a compilation step fails;
2370 otherwise delete it in any case. */
2373 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2375 char *const name
= xstrdup (filename
);
2379 struct temp_file
*temp
;
2380 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2381 if (! filename_cmp (name
, temp
->name
))
2387 temp
= XNEW (struct temp_file
);
2388 temp
->next
= always_delete_queue
;
2390 always_delete_queue
= temp
;
2397 struct temp_file
*temp
;
2398 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2399 if (! filename_cmp (name
, temp
->name
))
2405 temp
= XNEW (struct temp_file
);
2406 temp
->next
= failure_delete_queue
;
2408 failure_delete_queue
= temp
;
2414 /* Delete all the temporary files whose names we previously recorded. */
2416 #ifndef DELETE_IF_ORDINARY
2417 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2420 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2421 if (unlink (NAME) < 0) \
2423 perror_with_name (NAME); \
2428 delete_if_ordinary (const char *name
)
2434 printf ("Delete %s? (y or n) ", name
);
2438 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2441 if (i
== 'y' || i
== 'Y')
2443 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2447 delete_temp_files (void)
2449 struct temp_file
*temp
;
2451 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2452 delete_if_ordinary (temp
->name
);
2453 always_delete_queue
= 0;
2456 /* Delete all the files to be deleted on error. */
2459 delete_failure_queue (void)
2461 struct temp_file
*temp
;
2463 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2464 delete_if_ordinary (temp
->name
);
2468 clear_failure_queue (void)
2470 failure_delete_queue
= 0;
2473 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2475 If DO_MULTI is true iterate over the paths twice, first with multilib
2476 suffix then without, otherwise iterate over the paths once without
2477 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2478 to avoid visiting the same path twice, but we could do better. For
2479 instance, /usr/lib/../lib is considered different from /usr/lib.
2480 At least EXTRA_SPACE chars past the end of the path passed to
2481 CALLBACK are available for use by the callback.
2482 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2484 Returns the value returned by CALLBACK. */
2487 for_each_path (const struct path_prefix
*paths
,
2490 void *(*callback
) (char *, void *),
2491 void *callback_info
)
2493 struct prefix_list
*pl
;
2494 const char *multi_dir
= NULL
;
2495 const char *multi_os_dir
= NULL
;
2496 const char *multiarch_suffix
= NULL
;
2497 const char *multi_suffix
;
2498 const char *just_multi_suffix
;
2501 bool skip_multi_dir
= false;
2502 bool skip_multi_os_dir
= false;
2504 multi_suffix
= machine_suffix
;
2505 just_multi_suffix
= just_machine_suffix
;
2506 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2508 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2509 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2510 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2512 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2513 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2515 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2519 size_t multi_dir_len
= 0;
2520 size_t multi_os_dir_len
= 0;
2521 size_t multiarch_len
= 0;
2523 size_t just_suffix_len
;
2527 multi_dir_len
= strlen (multi_dir
);
2529 multi_os_dir_len
= strlen (multi_os_dir
);
2530 if (multiarch_suffix
)
2531 multiarch_len
= strlen (multiarch_suffix
);
2532 suffix_len
= strlen (multi_suffix
);
2533 just_suffix_len
= strlen (just_multi_suffix
);
2537 len
= paths
->max_len
+ extra_space
+ 1;
2538 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2539 path
= XNEWVEC (char, len
);
2542 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2544 len
= strlen (pl
->prefix
);
2545 memcpy (path
, pl
->prefix
, len
);
2547 /* Look first in MACHINE/VERSION subdirectory. */
2548 if (!skip_multi_dir
)
2550 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2551 ret
= callback (path
, callback_info
);
2556 /* Some paths are tried with just the machine (ie. target)
2557 subdir. This is used for finding as, ld, etc. */
2559 && pl
->require_machine_suffix
== 2)
2561 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2562 ret
= callback (path
, callback_info
);
2567 /* Now try the multiarch path. */
2569 && !pl
->require_machine_suffix
&& multiarch_dir
)
2571 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2572 ret
= callback (path
, callback_info
);
2577 /* Now try the base path. */
2578 if (!pl
->require_machine_suffix
2579 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2581 const char *this_multi
;
2582 size_t this_multi_len
;
2584 if (pl
->os_multilib
)
2586 this_multi
= multi_os_dir
;
2587 this_multi_len
= multi_os_dir_len
;
2591 this_multi
= multi_dir
;
2592 this_multi_len
= multi_dir_len
;
2596 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2600 ret
= callback (path
, callback_info
);
2608 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2611 /* Run through the paths again, this time without multilibs.
2612 Don't repeat any we have already seen. */
2615 free (CONST_CAST (char *, multi_dir
));
2617 free (CONST_CAST (char *, multi_suffix
));
2618 multi_suffix
= machine_suffix
;
2619 free (CONST_CAST (char *, just_multi_suffix
));
2620 just_multi_suffix
= just_machine_suffix
;
2623 skip_multi_dir
= true;
2626 free (CONST_CAST (char *, multi_os_dir
));
2627 multi_os_dir
= NULL
;
2630 skip_multi_os_dir
= true;
2635 free (CONST_CAST (char *, multi_dir
));
2636 free (CONST_CAST (char *, multi_suffix
));
2637 free (CONST_CAST (char *, just_multi_suffix
));
2640 free (CONST_CAST (char *, multi_os_dir
));
2646 /* Callback for build_search_list. Adds path to obstack being built. */
2648 struct add_to_obstack_info
{
2655 add_to_obstack (char *path
, void *data
)
2657 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2659 if (info
->check_dir
&& !is_directory (path
, false))
2662 if (!info
->first_time
)
2663 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2665 obstack_grow (info
->ob
, path
, strlen (path
));
2667 info
->first_time
= false;
2671 /* Add or change the value of an environment variable, outputting the
2672 change to standard error if in verbose mode. */
2674 xputenv (const char *string
)
2679 /* Build a list of search directories from PATHS.
2680 PREFIX is a string to prepend to the list.
2681 If CHECK_DIR_P is true we ensure the directory exists.
2682 If DO_MULTI is true, multilib paths are output first, then
2684 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2685 It is also used by the --print-search-dirs flag. */
2688 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2689 bool check_dir
, bool do_multi
)
2691 struct add_to_obstack_info info
;
2693 info
.ob
= &collect_obstack
;
2694 info
.check_dir
= check_dir
;
2695 info
.first_time
= true;
2697 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2698 obstack_1grow (&collect_obstack
, '=');
2700 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2702 obstack_1grow (&collect_obstack
, '\0');
2703 return XOBFINISH (&collect_obstack
, char *);
2706 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2710 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2713 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2716 /* Check whether NAME can be accessed in MODE. This is like access,
2717 except that it never considers directories to be executable. */
2720 access_check (const char *name
, int mode
)
2726 if (stat (name
, &st
) < 0
2727 || S_ISDIR (st
.st_mode
))
2731 return access (name
, mode
);
2734 /* Callback for find_a_file. Appends the file name to the directory
2735 path. If the resulting file exists in the right mode, return the
2736 full pathname to the file. */
2738 struct file_at_path_info
{
2747 file_at_path (char *path
, void *data
)
2749 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2750 size_t len
= strlen (path
);
2752 memcpy (path
+ len
, info
->name
, info
->name_len
);
2753 len
+= info
->name_len
;
2755 /* Some systems have a suffix for executable files.
2756 So try appending that first. */
2757 if (info
->suffix_len
)
2759 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2760 if (access_check (path
, info
->mode
) == 0)
2765 if (access_check (path
, info
->mode
) == 0)
2771 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2772 access to check permissions. If DO_MULTI is true, search multilib
2773 paths then non-multilib paths, otherwise do not search multilib paths.
2774 Return 0 if not found, otherwise return its name, allocated with malloc. */
2777 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2780 struct file_at_path_info info
;
2782 #ifdef DEFAULT_ASSEMBLER
2783 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2784 return xstrdup (DEFAULT_ASSEMBLER
);
2787 #ifdef DEFAULT_LINKER
2788 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2789 return xstrdup (DEFAULT_LINKER
);
2792 /* Determine the filename to execute (special case for absolute paths). */
2794 if (IS_ABSOLUTE_PATH (name
))
2796 if (access (name
, mode
) == 0)
2797 return xstrdup (name
);
2803 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2804 info
.name_len
= strlen (info
.name
);
2805 info
.suffix_len
= strlen (info
.suffix
);
2808 return (char*) for_each_path (pprefix
, do_multi
,
2809 info
.name_len
+ info
.suffix_len
,
2810 file_at_path
, &info
);
2813 /* Ranking of prefixes in the sort list. -B prefixes are put before
2816 enum path_prefix_priority
2818 PREFIX_PRIORITY_B_OPT
,
2819 PREFIX_PRIORITY_LAST
2822 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2823 order according to PRIORITY. Within each PRIORITY, new entries are
2826 If WARN is nonzero, we will warn if no file is found
2827 through this prefix. WARN should point to an int
2828 which will be set to 1 if this entry is used.
2830 COMPONENT is the value to be passed to update_path.
2832 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2833 the complete value of machine_suffix.
2834 2 means try both machine_suffix and just_machine_suffix. */
2837 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2838 const char *component
, /* enum prefix_priority */ int priority
,
2839 int require_machine_suffix
, int os_multilib
)
2841 struct prefix_list
*pl
, **prev
;
2844 for (prev
= &pprefix
->plist
;
2845 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2846 prev
= &(*prev
)->next
)
2849 /* Keep track of the longest prefix. */
2851 prefix
= update_path (prefix
, component
);
2852 len
= strlen (prefix
);
2853 if (len
> pprefix
->max_len
)
2854 pprefix
->max_len
= len
;
2856 pl
= XNEW (struct prefix_list
);
2857 pl
->prefix
= prefix
;
2858 pl
->require_machine_suffix
= require_machine_suffix
;
2859 pl
->priority
= priority
;
2860 pl
->os_multilib
= os_multilib
;
2862 /* Insert after PREV. */
2867 /* Same as add_prefix, but prepending target_system_root to prefix. */
2868 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2870 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2871 const char *component
,
2872 /* enum prefix_priority */ int priority
,
2873 int require_machine_suffix
, int os_multilib
)
2875 if (!IS_ABSOLUTE_PATH (prefix
))
2876 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
2878 if (target_system_root
)
2880 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
2881 size_t sysroot_len
= strlen (target_system_root
);
2884 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
2885 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
2887 if (target_sysroot_suffix
)
2888 prefix
= concat (sysroot_no_trailing_dir_separator
,
2889 target_sysroot_suffix
, prefix
, NULL
);
2891 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
2893 free (sysroot_no_trailing_dir_separator
);
2895 /* We have to override this because GCC's notion of sysroot
2896 moves along with GCC. */
2900 add_prefix (pprefix
, prefix
, component
, priority
,
2901 require_machine_suffix
, os_multilib
);
2904 /* Execute the command specified by the arguments on the current line of spec.
2905 When using pipes, this includes several piped-together commands
2906 with `|' between them.
2908 Return 0 if successful, -1 if failed. */
2914 int n_commands
; /* # of command. */
2916 struct pex_obj
*pex
;
2919 const char *prog
; /* program name. */
2920 const char **argv
; /* vector of args. */
2924 struct command
*commands
; /* each command buffer with above info. */
2926 gcc_assert (!processing_spec_function
);
2930 string
= find_a_file (&exec_prefixes
,
2931 argbuf
[0], X_OK
, false);
2934 insert_wrapper (wrapper_string
);
2937 /* Count # of piped commands. */
2938 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2939 if (strcmp (arg
, "|") == 0)
2942 /* Get storage for each command. */
2943 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2945 /* Split argbuf into its separate piped processes,
2946 and record info about each one.
2947 Also search for the programs that are to be run. */
2949 argbuf
.safe_push (0);
2951 commands
[0].prog
= argbuf
[0]; /* first command. */
2952 commands
[0].argv
= argbuf
.address ();
2954 if (!wrapper_string
)
2956 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2957 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2960 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
2961 if (arg
&& strcmp (arg
, "|") == 0)
2962 { /* each command. */
2963 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2964 fatal_error (input_location
, "-pipe not supported");
2966 argbuf
[i
] = 0; /* Termination of
2968 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2969 commands
[n_commands
].argv
2970 = &(argbuf
.address ())[i
+ 1];
2971 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2974 commands
[n_commands
].argv
[0] = string
;
2978 /* If -v, print what we are about to do, and maybe query. */
2982 /* For help listings, put a blank line between sub-processes. */
2983 if (print_help_list
)
2984 fputc ('\n', stderr
);
2986 /* Print each piped command as a separate line. */
2987 for (i
= 0; i
< n_commands
; i
++)
2989 const char *const *j
;
2991 if (verbose_only_flag
)
2993 for (j
= commands
[i
].argv
; *j
; j
++)
2996 for (p
= *j
; *p
; ++p
)
2997 if (!ISALNUM ((unsigned char) *p
)
2998 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
3002 fprintf (stderr
, " \"");
3003 for (p
= *j
; *p
; ++p
)
3005 if (*p
== '"' || *p
== '\\' || *p
== '$')
3006 fputc ('\\', stderr
);
3009 fputc ('"', stderr
);
3011 /* If it's empty, print "". */
3013 fprintf (stderr
, " \"\"");
3015 fprintf (stderr
, " %s", *j
);
3019 for (j
= commands
[i
].argv
; *j
; j
++)
3020 /* If it's empty, print "". */
3022 fprintf (stderr
, " \"\"");
3024 fprintf (stderr
, " %s", *j
);
3026 /* Print a pipe symbol after all but the last command. */
3027 if (i
+ 1 != n_commands
)
3028 fprintf (stderr
, " |");
3029 fprintf (stderr
, "\n");
3032 if (verbose_only_flag
!= 0)
3034 /* verbose_only_flag should act as if the spec was
3035 executed, so increment execution_count before
3036 returning. This prevents spurious warnings about
3037 unused linker input files, etc. */
3042 fnotice (stderr
, "\nGo ahead? (y or n) ");
3046 while (getchar () != '\n')
3049 if (i
!= 'y' && i
!= 'Y')
3054 #ifdef ENABLE_VALGRIND_CHECKING
3055 /* Run the each command through valgrind. To simplify prepending the
3056 path to valgrind and the option "-q" (for quiet operation unless
3057 something triggers), we allocate a separate argv array. */
3059 for (i
= 0; i
< n_commands
; i
++)
3065 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3068 argv
= XALLOCAVEC (const char *, argc
+ 3);
3070 argv
[0] = VALGRIND_PATH
;
3072 for (j
= 2; j
< argc
+ 2; j
++)
3073 argv
[j
] = commands
[i
].argv
[j
- 2];
3076 commands
[i
].argv
= argv
;
3077 commands
[i
].prog
= argv
[0];
3081 /* Run each piped subprocess. */
3083 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3084 ? PEX_RECORD_TIMES
: 0),
3085 progname
, temp_filename
);
3087 fatal_error (input_location
, "pex_init failed: %m");
3089 for (i
= 0; i
< n_commands
; i
++)
3093 const char *string
= commands
[i
].argv
[0];
3095 errmsg
= pex_run (pex
,
3096 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3097 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3098 string
, CONST_CAST (char **, commands
[i
].argv
),
3103 fatal_error (input_location
, errmsg
);
3107 pfatal_with_name (errmsg
);
3111 if (i
&& string
!= commands
[i
].prog
)
3112 free (CONST_CAST (char *, string
));
3117 /* Wait for all the subprocesses to finish. */
3121 struct pex_time
*times
= NULL
;
3124 statuses
= (int *) alloca (n_commands
* sizeof (int));
3125 if (!pex_get_status (pex
, n_commands
, statuses
))
3126 fatal_error (input_location
, "failed to get exit status: %m");
3128 if (report_times
|| report_times_to_file
)
3130 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3131 if (!pex_get_times (pex
, n_commands
, times
))
3132 fatal_error (input_location
, "failed to get process times: %m");
3137 for (i
= 0; i
< n_commands
; ++i
)
3139 int status
= statuses
[i
];
3141 if (WIFSIGNALED (status
))
3142 switch (WTERMSIG (status
))
3146 /* SIGQUIT and SIGKILL are not available on MinGW. */
3153 /* The user (or environment) did something to the
3154 inferior. Making this an ICE confuses the user into
3155 thinking there's a compiler bug. Much more likely is
3156 the user or OOM killer nuked it. */
3157 fatal_error (input_location
,
3158 "%s signal terminated program %s",
3159 strsignal (WTERMSIG (status
)),
3165 /* SIGPIPE is a special case. It happens in -pipe mode
3166 when the compiler dies before the preprocessor is
3167 done, or the assembler dies before the compiler is
3168 done. There's generally been an error already, and
3169 this is just fallout. So don't generate another
3170 error unless we would otherwise have succeeded. */
3171 if (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
)
3181 /* The inferior failed to catch the signal. */
3182 internal_error_no_backtrace ("%s signal terminated program %s",
3183 strsignal (WTERMSIG (status
)),
3186 else if (WIFEXITED (status
)
3187 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3189 /* For ICEs in cc1, cc1obj, cc1plus see if it is
3190 reproducible or not. */
3193 && WEXITSTATUS (status
) == ICE_EXIT_CODE
3195 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
3196 && ! strncmp (p
+ 1, "cc1", 3))
3197 try_generate_repro (commands
[0].argv
);
3198 if (WEXITSTATUS (status
) > greatest_status
)
3199 greatest_status
= WEXITSTATUS (status
);
3203 if (report_times
|| report_times_to_file
)
3205 struct pex_time
*pt
= ×
[i
];
3208 ut
= ((double) pt
->user_seconds
3209 + (double) pt
->user_microseconds
/ 1.0e6
);
3210 st
= ((double) pt
->system_seconds
3211 + (double) pt
->system_microseconds
/ 1.0e6
);
3216 fnotice (stderr
, "# %s %.2f %.2f\n",
3217 commands
[i
].prog
, ut
, st
);
3219 if (report_times_to_file
)
3222 const char *const *j
;
3224 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3226 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3229 for (p
= *j
; *p
; ++p
)
3230 if (*p
== '"' || *p
== '\\' || *p
== '$'
3236 fprintf (report_times_to_file
, " \"");
3237 for (p
= *j
; *p
; ++p
)
3239 if (*p
== '"' || *p
== '\\' || *p
== '$')
3240 fputc ('\\', report_times_to_file
);
3241 fputc (*p
, report_times_to_file
);
3243 fputc ('"', report_times_to_file
);
3246 fprintf (report_times_to_file
, " %s", *j
);
3249 fputc ('\n', report_times_to_file
);
3255 if (commands
[0].argv
[0] != commands
[0].prog
)
3256 free (CONST_CAST (char *, commands
[0].argv
[0]));
3262 /* Find all the switches given to us
3263 and make a vector describing them.
3264 The elements of the vector are strings, one per switch given.
3265 If a switch uses following arguments, then the `part1' field
3266 is the switch itself and the `args' field
3267 is a null-terminated vector containing the following arguments.
3268 Bits in the `live_cond' field are:
3269 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3270 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3271 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3272 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored.
3273 SWITCH_KEEP_FOR_GCC to indicate that this switch, otherwise ignored,
3274 should be included in COLLECT_GCC_OPTIONS.
3275 in all do_spec calls afterwards. Used for %<S from self specs.
3276 The `known' field describes whether this is an internal switch.
3277 The `validated' field describes whether any spec has looked at this switch;
3278 if it remains false at the end of the run, the switch must be meaningless.
3279 The `ordering' field is used to temporarily mark switches that have to be
3280 kept in a specific order. */
3282 #define SWITCH_LIVE (1 << 0)
3283 #define SWITCH_FALSE (1 << 1)
3284 #define SWITCH_IGNORE (1 << 2)
3285 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
3286 #define SWITCH_KEEP_FOR_GCC (1 << 4)
3292 unsigned int live_cond
;
3298 static struct switchstr
*switches
;
3300 static int n_switches
;
3302 static int n_switches_alloc
;
3304 /* Set to zero if -fcompare-debug is disabled, positive if it's
3305 enabled and we're running the first compilation, negative if it's
3306 enabled and we're running the second compilation. For most of the
3307 time, it's in the range -1..1, but it can be temporarily set to 2
3308 or 3 to indicate that the -fcompare-debug flags didn't come from
3309 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3310 variable, until a synthesized -fcompare-debug flag is added to the
3314 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3315 int compare_debug_second
;
3317 /* Set to the flags that should be passed to the second compilation in
3318 a -fcompare-debug compilation. */
3319 const char *compare_debug_opt
;
3321 static struct switchstr
*switches_debug_check
[2];
3323 static int n_switches_debug_check
[2];
3325 static int n_switches_alloc_debug_check
[2];
3327 static char *debug_check_temp_file
[2];
3329 /* Language is one of three things:
3331 1) The name of a real programming language.
3332 2) NULL, indicating that no one has figured out
3334 3) '*', indicating that the file should be passed
3339 const char *language
;
3340 struct compiler
*incompiler
;
3345 /* Also a vector of input files specified. */
3347 static struct infile
*infiles
;
3351 static int n_infiles_alloc
;
3353 /* True if undefined environment variables encountered during spec processing
3354 are ok to ignore, typically when we're running for --help or --version. */
3356 static bool spec_undefvar_allowed
;
3358 /* True if multiple input files are being compiled to a single
3361 static bool combine_inputs
;
3363 /* This counts the number of libraries added by lang_specific_driver, so that
3364 we can tell if there were any user supplied any files or libraries. */
3366 static int added_libraries
;
3368 /* And a vector of corresponding output files is made up later. */
3370 const char **outfiles
;
3372 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3374 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3375 is true if we should look for an executable suffix. DO_OBJ
3376 is true if we should look for an object suffix. */
3379 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3380 int do_obj ATTRIBUTE_UNUSED
)
3382 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3390 len
= strlen (name
);
3392 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3393 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3394 if (do_obj
&& len
> 2
3395 && name
[len
- 2] == '.'
3396 && name
[len
- 1] == 'o')
3398 obstack_grow (&obstack
, name
, len
- 2);
3399 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3400 name
= XOBFINISH (&obstack
, const char *);
3404 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3405 /* If there is no filetype, make it the executable suffix (which includes
3406 the "."). But don't get confused if we have just "-o". */
3407 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3410 for (i
= len
- 1; i
>= 0; i
--)
3411 if (IS_DIR_SEPARATOR (name
[i
]))
3414 for (i
++; i
< len
; i
++)
3418 obstack_grow (&obstack
, name
, len
);
3419 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3420 strlen (TARGET_EXECUTABLE_SUFFIX
));
3421 name
= XOBFINISH (&obstack
, const char *);
3428 /* Display the command line switches accepted by gcc. */
3432 printf (_("Usage: %s [options] file...\n"), progname
);
3433 fputs (_("Options:\n"), stdout
);
3435 fputs (_(" -pass-exit-codes Exit with highest error code from a phase.\n"), stdout
);
3436 fputs (_(" --help Display this information.\n"), stdout
);
3437 fputs (_(" --target-help Display target specific command line options.\n"), stdout
);
3438 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...].\n"), stdout
);
3439 fputs (_(" Display specific types of command line options.\n"), stdout
);
3441 fputs (_(" (Use '-v --help' to display command line options of sub-processes).\n"), stdout
);
3442 fputs (_(" --version Display compiler version information.\n"), stdout
);
3443 fputs (_(" -dumpspecs Display all of the built in spec strings.\n"), stdout
);
3444 fputs (_(" -dumpversion Display the version of the compiler.\n"), stdout
);
3445 fputs (_(" -dumpmachine Display the compiler's target processor.\n"), stdout
);
3446 fputs (_(" -print-search-dirs Display the directories in the compiler's search path.\n"), stdout
);
3447 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library.\n"), stdout
);
3448 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>.\n"), stdout
);
3449 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>.\n"), stdout
);
3451 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3452 a component in the library path.\n"), stdout
);
3453 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc.\n"), stdout
);
3455 -print-multi-lib Display the mapping between command line options and\n\
3456 multiple library search directories.\n"), stdout
);
3457 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries.\n"), stdout
);
3458 fputs (_(" -print-sysroot Display the target libraries directory.\n"), stdout
);
3459 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers.\n"), stdout
);
3460 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler.\n"), stdout
);
3461 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor.\n"), stdout
);
3462 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker.\n"), stdout
);
3463 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler.\n"), stdout
);
3464 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor.\n"), stdout
);
3465 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker.\n"), stdout
);
3466 fputs (_(" -save-temps Do not delete intermediate files.\n"), stdout
);
3467 fputs (_(" -save-temps=<arg> Do not delete intermediate files.\n"), stdout
);
3469 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3470 prefixes to other gcc components.\n"), stdout
);
3471 fputs (_(" -pipe Use pipes rather than intermediate files.\n"), stdout
);
3472 fputs (_(" -time Time the execution of each subprocess.\n"), stdout
);
3473 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>.\n"), stdout
);
3474 fputs (_(" -std=<standard> Assume that the input sources are for <standard>.\n"), stdout
);
3476 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3477 and libraries.\n"), stdout
);
3478 fputs (_(" -B <directory> Add <directory> to the compiler's search paths.\n"), stdout
);
3479 fputs (_(" -v Display the programs invoked by the compiler.\n"), stdout
);
3480 fputs (_(" -### Like -v but options quoted and commands not executed.\n"), stdout
);
3481 fputs (_(" -E Preprocess only; do not compile, assemble or link.\n"), stdout
);
3482 fputs (_(" -S Compile only; do not assemble or link.\n"), stdout
);
3483 fputs (_(" -c Compile and assemble, but do not link.\n"), stdout
);
3484 fputs (_(" -o <file> Place the output into <file>.\n"), stdout
);
3485 fputs (_(" -pie Create a dynamically linked position independent\n\
3486 executable.\n"), stdout
);
3487 fputs (_(" -shared Create a shared library.\n"), stdout
);
3489 -x <language> Specify the language of the following input files.\n\
3490 Permissible languages include: c c++ assembler none\n\
3491 'none' means revert to the default behavior of\n\
3492 guessing the language based on the file's extension.\n\
3496 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3497 passed on to the various sub-processes invoked by %s. In order to pass\n\
3498 other options on to these processes the -W<letter> options must be used.\n\
3501 /* The rest of the options are displayed by invocations of the various
3506 add_preprocessor_option (const char *option
, int len
)
3508 preprocessor_options
.safe_push (save_string (option
, len
));
3512 add_assembler_option (const char *option
, int len
)
3514 assembler_options
.safe_push (save_string (option
, len
));
3518 add_linker_option (const char *option
, int len
)
3520 linker_options
.safe_push (save_string (option
, len
));
3523 /* Allocate space for an input file in infiles. */
3528 if (n_infiles_alloc
== 0)
3530 n_infiles_alloc
= 16;
3531 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3533 else if (n_infiles_alloc
== n_infiles
)
3535 n_infiles_alloc
*= 2;
3536 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3540 /* Store an input file with the given NAME and LANGUAGE in
3544 add_infile (const char *name
, const char *language
)
3547 infiles
[n_infiles
].name
= name
;
3548 infiles
[n_infiles
++].language
= language
;
3551 /* Allocate space for a switch in switches. */
3556 if (n_switches_alloc
== 0)
3558 n_switches_alloc
= 16;
3559 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3561 else if (n_switches_alloc
== n_switches
)
3563 n_switches_alloc
*= 2;
3564 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3568 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3569 as validated if VALIDATED and KNOWN if it is an internal switch. */
3572 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3573 bool validated
, bool known
)
3576 switches
[n_switches
].part1
= opt
+ 1;
3578 switches
[n_switches
].args
= 0;
3581 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3582 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3583 switches
[n_switches
].args
[n_args
] = NULL
;
3586 switches
[n_switches
].live_cond
= 0;
3587 switches
[n_switches
].validated
= validated
;
3588 switches
[n_switches
].known
= known
;
3589 switches
[n_switches
].ordering
= 0;
3593 /* Set the SOURCE_DATE_EPOCH environment variable to the current time if it is
3597 set_source_date_epoch_envvar ()
3599 /* Array size is 21 = ceil(log_10(2^64)) + 1 to hold string representations
3600 of 64 bit integers. */
3601 char source_date_epoch
[21];
3606 if (tt
< (time_t) 0 || errno
!= 0)
3609 snprintf (source_date_epoch
, 21, "%llu", (unsigned long long) tt
);
3610 /* Using setenv instead of xputenv because we want the variable to remain
3611 after finalizing so that it's still set in the second run when using
3613 setenv ("SOURCE_DATE_EPOCH", source_date_epoch
, 0);
3616 /* Handle an option DECODED that is unknown to the option-processing
3620 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3622 const char *opt
= decoded
->arg
;
3623 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3624 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3626 /* Leave unknown -Wno-* options for the compiler proper, to be
3627 diagnosed only if there are warnings. */
3628 save_switch (decoded
->canonical_option
[0],
3629 decoded
->canonical_option_num_elements
- 1,
3630 &decoded
->canonical_option
[1], false, true);
3633 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3635 /* Give it a chance to define it a spec file. */
3636 save_switch (decoded
->canonical_option
[0],
3637 decoded
->canonical_option_num_elements
- 1,
3638 &decoded
->canonical_option
[1], false, false);
3645 /* Handle an option DECODED that is not marked as CL_DRIVER.
3646 LANG_MASK will always be CL_DRIVER. */
3649 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3650 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3652 /* At this point, non-driver options are accepted (and expected to
3653 be passed down by specs) unless marked to be rejected by the
3654 driver. Options to be rejected by the driver but accepted by the
3655 compilers proper are treated just like completely unknown
3657 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3659 if (option
->cl_reject_driver
)
3660 error ("unrecognized command line option %qs",
3661 decoded
->orig_option_with_args_text
);
3663 save_switch (decoded
->canonical_option
[0],
3664 decoded
->canonical_option_num_elements
- 1,
3665 &decoded
->canonical_option
[1], false, true);
3668 static const char *spec_lang
= 0;
3669 static int last_language_n_infiles
;
3671 /* Parse -foffload option argument. */
3674 handle_foffload_option (const char *arg
)
3676 const char *c
, *cur
, *n
, *next
, *end
;
3679 /* If option argument starts with '-' then no target is specified and we
3680 do not need to parse it. */
3684 end
= strchr (arg
, '=');
3686 end
= strchr (arg
, '\0');
3691 next
= strchr (cur
, ',');
3694 next
= (next
> end
) ? end
: next
;
3696 target
= XNEWVEC (char, next
- cur
+ 1);
3697 memcpy (target
, cur
, next
- cur
);
3698 target
[next
- cur
] = '\0';
3700 /* If 'disable' is passed to the option, stop parsing the option and clean
3701 the list of offload targets. */
3702 if (strcmp (target
, "disable") == 0)
3704 free (offload_targets
);
3705 offload_targets
= xstrdup ("");
3709 /* Check that GCC is configured to support the offload target. */
3710 c
= OFFLOAD_TARGETS
;
3713 n
= strchr (c
, ',');
3715 n
= strchr (c
, '\0');
3717 if (next
- cur
== n
- c
&& strncmp (target
, c
, n
- c
) == 0)
3720 c
= *n
? n
+ 1 : NULL
;
3724 fatal_error (input_location
,
3725 "GCC is not configured to support %s as offload target",
3728 if (!offload_targets
)
3730 offload_targets
= target
;
3735 /* Check that the target hasn't already presented in the list. */
3736 c
= offload_targets
;
3739 n
= strchr (c
, ':');
3741 n
= strchr (c
, '\0');
3743 if (next
- cur
== n
- c
&& strncmp (c
, target
, n
- c
) == 0)
3750 /* If duplicate is not found, append the target to the list. */
3753 size_t offload_targets_len
= strlen (offload_targets
);
3755 = XRESIZEVEC (char, offload_targets
,
3756 offload_targets_len
+ 1 + next
- cur
+ 1);
3757 offload_targets
[offload_targets_len
++] = ':';
3758 memcpy (offload_targets
+ offload_targets_len
, target
, next
- cur
+ 1);
3763 XDELETEVEC (target
);
3767 /* Handle a driver option; arguments and return value as for
3771 driver_handle_option (struct gcc_options
*opts
,
3772 struct gcc_options
*opts_set
,
3773 const struct cl_decoded_option
*decoded
,
3774 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3776 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3777 diagnostic_context
*dc
,
3780 size_t opt_index
= decoded
->opt_index
;
3781 const char *arg
= decoded
->arg
;
3782 const char *compare_debug_replacement_opt
;
3783 int value
= decoded
->value
;
3784 bool validated
= false;
3785 bool do_save
= true;
3787 gcc_assert (opts
== &global_options
);
3788 gcc_assert (opts_set
== &global_options_set
);
3789 gcc_assert (kind
== DK_UNSPECIFIED
);
3790 gcc_assert (loc
== UNKNOWN_LOCATION
);
3791 gcc_assert (dc
== global_dc
);
3797 struct spec_list
*sl
;
3799 for (sl
= specs
; sl
; sl
= sl
->next
)
3800 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3801 if (link_command_spec
)
3802 printf ("*link_command:\n%s\n\n", link_command_spec
);
3806 case OPT_dumpversion
:
3807 printf ("%s\n", spec_version
);
3810 case OPT_dumpmachine
:
3811 printf ("%s\n", spec_machine
);
3814 case OPT_dumpfullversion
:
3815 printf ("%s\n", BASEVER
);
3821 /* CPP driver cannot obtain switch from cc1_options. */
3823 add_preprocessor_option ("--version", strlen ("--version"));
3824 add_assembler_option ("--version", strlen ("--version"));
3825 add_linker_option ("--version", strlen ("--version"));
3829 print_help_list
= 1;
3831 /* CPP driver cannot obtain switch from cc1_options. */
3833 add_preprocessor_option ("--help", 6);
3834 add_assembler_option ("--help", 6);
3835 add_linker_option ("--help", 6);
3839 print_subprocess_help
= 2;
3842 case OPT__target_help
:
3843 print_subprocess_help
= 1;
3845 /* CPP driver cannot obtain switch from cc1_options. */
3847 add_preprocessor_option ("--target-help", 13);
3848 add_assembler_option ("--target-help", 13);
3849 add_linker_option ("--target-help", 13);
3852 case OPT__no_sysroot_suffix
:
3853 case OPT_pass_exit_codes
:
3854 case OPT_print_search_dirs
:
3855 case OPT_print_file_name_
:
3856 case OPT_print_prog_name_
:
3857 case OPT_print_multi_lib
:
3858 case OPT_print_multi_directory
:
3859 case OPT_print_sysroot
:
3860 case OPT_print_multi_os_directory
:
3861 case OPT_print_multiarch
:
3862 case OPT_print_sysroot_headers_suffix
:
3865 /* These options set the variables specified in common.opt
3866 automatically, and do not need to be saved for spec
3871 case OPT_print_libgcc_file_name
:
3872 print_file_name
= "libgcc.a";
3876 case OPT_fuse_ld_bfd
:
3880 case OPT_fuse_ld_gold
:
3884 case OPT_fcompare_debug_second
:
3885 compare_debug_second
= 1;
3888 case OPT_fcompare_debug
:
3892 compare_debug_replacement_opt
= "-fcompare-debug=";
3894 goto compare_debug_with_arg
;
3897 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
3899 goto compare_debug_with_arg
;
3906 case OPT_fcompare_debug_
:
3907 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
3908 compare_debug_with_arg
:
3909 gcc_assert (decoded
->canonical_option_num_elements
== 1);
3910 gcc_assert (arg
!= NULL
);
3915 if (compare_debug
< 0)
3916 compare_debug_opt
= NULL
;
3918 compare_debug_opt
= arg
;
3919 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
3920 set_source_date_epoch_envvar ();
3923 case OPT_fdiagnostics_color_
:
3924 diagnostic_color_init (dc
, value
);
3930 /* Pass the rest of this option to the assembler. */
3932 /* Split the argument at commas. */
3934 for (j
= 0; arg
[j
]; j
++)
3937 add_assembler_option (arg
+ prev
, j
- prev
);
3941 /* Record the part after the last comma. */
3942 add_assembler_option (arg
+ prev
, j
- prev
);
3950 /* Pass the rest of this option to the preprocessor. */
3952 /* Split the argument at commas. */
3954 for (j
= 0; arg
[j
]; j
++)
3957 add_preprocessor_option (arg
+ prev
, j
- prev
);
3961 /* Record the part after the last comma. */
3962 add_preprocessor_option (arg
+ prev
, j
- prev
);
3970 /* Split the argument at commas. */
3972 for (j
= 0; arg
[j
]; j
++)
3975 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
3978 /* Record the part after the last comma. */
3979 add_infile (arg
+ prev
, "*");
3985 add_infile (arg
, "*");
3989 case OPT_Xpreprocessor
:
3990 add_preprocessor_option (arg
, strlen (arg
));
3994 case OPT_Xassembler
:
3995 add_assembler_option (arg
, strlen (arg
));
4000 /* POSIX allows separation of -l and the lib arg; canonicalize
4001 by concatenating -l with its arg */
4002 add_infile (concat ("-l", arg
, NULL
), "*");
4007 /* Similarly, canonicalize -L for linkers that may not accept
4008 separate arguments. */
4009 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
4014 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
4017 case OPT_save_temps
:
4018 save_temps_flag
= SAVE_TEMPS_CWD
;
4022 case OPT_save_temps_
:
4023 if (strcmp (arg
, "cwd") == 0)
4024 save_temps_flag
= SAVE_TEMPS_CWD
;
4025 else if (strcmp (arg
, "obj") == 0
4026 || strcmp (arg
, "object") == 0)
4027 save_temps_flag
= SAVE_TEMPS_OBJ
;
4029 fatal_error (input_location
, "%qs is an unknown -save-temps option",
4030 decoded
->orig_option_with_args_text
);
4033 case OPT_no_canonical_prefixes
:
4034 /* Already handled as a special case, so ignored here. */
4040 /* These options set the variables specified in common.opt
4041 automatically, but do need to be saved for spec
4047 struct user_specs
*user
= XNEW (struct user_specs
);
4049 user
->next
= (struct user_specs
*) 0;
4050 user
->filename
= arg
;
4051 if (user_specs_tail
)
4052 user_specs_tail
->next
= user
;
4054 user_specs_head
= user
;
4055 user_specs_tail
= user
;
4061 target_system_root
= arg
;
4062 target_system_root_changed
= 1;
4067 if (report_times_to_file
)
4068 fclose (report_times_to_file
);
4069 report_times_to_file
= fopen (arg
, "a");
4075 This is similar to -v except that there is no execution
4076 of the commands and the echoed arguments are quoted. It
4077 is intended for use in shell scripts to capture the
4078 driver-generated command line. */
4079 verbose_only_flag
++;
4086 size_t len
= strlen (arg
);
4088 /* Catch the case where the user has forgotten to append a
4089 directory separator to the path. Note, they may be using
4090 -B to add an executable name prefix, eg "i386-elf-", in
4091 order to distinguish between multiple installations of
4092 GCC in the same directory. Hence we must check to see
4093 if appending a directory separator actually makes a
4094 valid directory name. */
4095 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
4096 && is_directory (arg
, false))
4098 char *tmp
= XNEWVEC (char, len
+ 2);
4100 tmp
[len
] = DIR_SEPARATOR
;
4105 add_prefix (&exec_prefixes
, arg
, NULL
,
4106 PREFIX_PRIORITY_B_OPT
, 0, 0);
4107 add_prefix (&startfile_prefixes
, arg
, NULL
,
4108 PREFIX_PRIORITY_B_OPT
, 0, 0);
4109 add_prefix (&include_prefixes
, arg
, NULL
,
4110 PREFIX_PRIORITY_B_OPT
, 0, 0);
4121 if (!strcmp (spec_lang
, "none"))
4122 /* Suppress the warning if -xnone comes after the last input
4123 file, because alternate command interfaces like g++ might
4124 find it useful to place -xnone after each input file. */
4127 last_language_n_infiles
= n_infiles
;
4133 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4134 arg
= convert_filename (arg
, ! have_c
, 0);
4137 /* Save the output name in case -save-temps=obj was used. */
4138 save_temps_prefix
= xstrdup (arg
);
4139 /* On some systems, ld cannot handle "-o" without a space. So
4140 split the option from its argument. */
4141 save_switch ("-o", 1, &arg
, validated
, true);
4144 #ifdef ENABLE_DEFAULT_PIE
4146 /* -pie is turned on by default. */
4149 case OPT_static_libgcc
:
4150 case OPT_shared_libgcc
:
4151 case OPT_static_libgfortran
:
4152 case OPT_static_libstdc__
:
4153 /* These are always valid, since gcc.c itself understands the
4154 first two, gfortranspec.c understands -static-libgfortran and
4155 g++spec.c understands -static-libstdc++ */
4164 handle_foffload_option (arg
);
4168 /* Various driver options need no special processing at this
4169 point, having been handled in a prescan above or being
4170 handled by specs. */
4175 save_switch (decoded
->canonical_option
[0],
4176 decoded
->canonical_option_num_elements
- 1,
4177 &decoded
->canonical_option
[1], validated
, true);
4181 /* Put the driver's standard set of option handlers in *HANDLERS. */
4184 set_option_handlers (struct cl_option_handlers
*handlers
)
4186 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
4187 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
4188 handlers
->num_handlers
= 3;
4189 handlers
->handlers
[0].handler
= driver_handle_option
;
4190 handlers
->handlers
[0].mask
= CL_DRIVER
;
4191 handlers
->handlers
[1].handler
= common_handle_option
;
4192 handlers
->handlers
[1].mask
= CL_COMMON
;
4193 handlers
->handlers
[2].handler
= target_handle_option
;
4194 handlers
->handlers
[2].mask
= CL_TARGET
;
4197 /* Create the vector `switches' and its contents.
4198 Store its length in `n_switches'. */
4201 process_command (unsigned int decoded_options_count
,
4202 struct cl_decoded_option
*decoded_options
)
4206 char *tooldir_prefix
, *tooldir_prefix2
;
4207 char *(*get_relative_prefix
) (const char *, const char *,
4208 const char *) = NULL
;
4209 struct cl_option_handlers handlers
;
4212 gcc_exec_prefix
= env
.get ("GCC_EXEC_PREFIX");
4216 added_libraries
= 0;
4218 /* Figure compiler version from version string. */
4220 compiler_version
= temp1
= xstrdup (version_string
);
4222 for (; *temp1
; ++temp1
)
4231 /* Handle any -no-canonical-prefixes flag early, to assign the function
4232 that builds relative prefixes. This function creates default search
4233 paths that are needed later in normal option handling. */
4235 for (j
= 1; j
< decoded_options_count
; j
++)
4237 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
4239 get_relative_prefix
= make_relative_prefix_ignore_links
;
4243 if (! get_relative_prefix
)
4244 get_relative_prefix
= make_relative_prefix
;
4246 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
4247 see if we can create it from the pathname specified in
4248 decoded_options[0].arg. */
4250 gcc_libexec_prefix
= standard_libexec_prefix
;
4252 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
4253 if (!gcc_exec_prefix
)
4255 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4256 standard_bindir_prefix
,
4257 standard_exec_prefix
);
4258 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4259 standard_bindir_prefix
,
4260 standard_libexec_prefix
);
4261 if (gcc_exec_prefix
)
4262 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
4266 /* make_relative_prefix requires a program name, but
4267 GCC_EXEC_PREFIX is typically a directory name with a trailing
4268 / (which is ignored by make_relative_prefix), so append a
4270 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
4271 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
4272 standard_exec_prefix
,
4273 standard_libexec_prefix
);
4275 /* The path is unrelocated, so fallback to the original setting. */
4276 if (!gcc_libexec_prefix
)
4277 gcc_libexec_prefix
= standard_libexec_prefix
;
4283 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
4284 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
4285 or an automatically created GCC_EXEC_PREFIX from
4286 decoded_options[0].arg. */
4288 /* Do language-specific adjustment/addition of flags. */
4289 lang_specific_driver (&decoded_options
, &decoded_options_count
,
4292 if (gcc_exec_prefix
)
4294 int len
= strlen (gcc_exec_prefix
);
4296 if (len
> (int) sizeof ("/lib/gcc/") - 1
4297 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
4299 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
4300 if (IS_DIR_SEPARATOR (*temp
)
4301 && filename_ncmp (temp
+ 1, "lib", 3) == 0
4302 && IS_DIR_SEPARATOR (temp
[4])
4303 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
4304 len
-= sizeof ("/lib/gcc/") - 1;
4307 set_std_prefix (gcc_exec_prefix
, len
);
4308 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
4309 PREFIX_PRIORITY_LAST
, 0, 0);
4310 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
4311 PREFIX_PRIORITY_LAST
, 0, 0);
4314 /* COMPILER_PATH and LIBRARY_PATH have values
4315 that are lists of directory names with colons. */
4317 temp
= env
.get ("COMPILER_PATH");
4320 const char *startp
, *endp
;
4321 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4323 startp
= endp
= temp
;
4326 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4328 strncpy (nstore
, startp
, endp
- startp
);
4330 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4331 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4333 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4334 nstore
[endp
- startp
+ 1] = 0;
4337 nstore
[endp
- startp
] = 0;
4338 add_prefix (&exec_prefixes
, nstore
, 0,
4339 PREFIX_PRIORITY_LAST
, 0, 0);
4340 add_prefix (&include_prefixes
, nstore
, 0,
4341 PREFIX_PRIORITY_LAST
, 0, 0);
4344 endp
= startp
= endp
+ 1;
4351 temp
= env
.get (LIBRARY_PATH_ENV
);
4352 if (temp
&& *cross_compile
== '0')
4354 const char *startp
, *endp
;
4355 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4357 startp
= endp
= temp
;
4360 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4362 strncpy (nstore
, startp
, endp
- startp
);
4364 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4365 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4367 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4368 nstore
[endp
- startp
+ 1] = 0;
4371 nstore
[endp
- startp
] = 0;
4372 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4373 PREFIX_PRIORITY_LAST
, 0, 1);
4376 endp
= startp
= endp
+ 1;
4383 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4384 temp
= env
.get ("LPATH");
4385 if (temp
&& *cross_compile
== '0')
4387 const char *startp
, *endp
;
4388 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4390 startp
= endp
= temp
;
4393 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4395 strncpy (nstore
, startp
, endp
- startp
);
4397 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4398 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4400 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4401 nstore
[endp
- startp
+ 1] = 0;
4404 nstore
[endp
- startp
] = 0;
4405 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4406 PREFIX_PRIORITY_LAST
, 0, 1);
4409 endp
= startp
= endp
+ 1;
4416 /* Process the options and store input files and switches in their
4419 last_language_n_infiles
= -1;
4421 set_option_handlers (&handlers
);
4423 for (j
= 1; j
< decoded_options_count
; j
++)
4425 switch (decoded_options
[j
].opt_index
)
4437 for (j
= 1; j
< decoded_options_count
; j
++)
4439 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4441 const char *arg
= decoded_options
[j
].arg
;
4442 const char *p
= strrchr (arg
, '@');
4446 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4447 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4449 /* For LTO static archive support we handle input file
4450 specifications that are composed of a filename and
4451 an offset like FNAME@OFFSET. */
4454 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4455 && strlen (p
) == (unsigned int)consumed
)
4457 fname
= (char *)xmalloc (p
- arg
+ 1);
4458 memcpy (fname
, arg
, p
- arg
);
4459 fname
[p
- arg
] = '\0';
4460 /* Only accept non-stdin and existing FNAME parts, otherwise
4461 try with the full name. */
4462 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4465 fname
= xstrdup (arg
);
4469 fname
= xstrdup (arg
);
4471 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4473 if (fname
[0] == '@' && access (fname
+ 1, F_OK
) < 0)
4474 perror_with_name (fname
+ 1);
4476 perror_with_name (fname
);
4479 add_infile (arg
, spec_lang
);
4485 read_cmdline_option (&global_options
, &global_options_set
,
4486 decoded_options
+ j
, UNKNOWN_LOCATION
,
4487 CL_DRIVER
, &handlers
, global_dc
);
4490 /* If the user didn't specify any, default to all configured offload
4492 if (ENABLE_OFFLOADING
&& offload_targets
== NULL
)
4493 handle_foffload_option (OFFLOAD_TARGETS
);
4496 && strcmp (output_file
, "-") != 0
4497 && strcmp (output_file
, HOST_BIT_BUCKET
) != 0)
4500 for (i
= 0; i
< n_infiles
; i
++)
4501 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
4502 && canonical_filename_eq (infiles
[i
].name
, output_file
))
4503 fatal_error (input_location
,
4504 "input file %qs is the same as output file",
4508 if (output_file
!= NULL
&& output_file
[0] == '\0')
4509 fatal_error (input_location
, "output filename may not be empty");
4511 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4512 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4513 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4515 save_temps_length
= strlen (save_temps_prefix
);
4516 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4519 save_temps_length
-= strlen (temp
);
4520 save_temps_prefix
[save_temps_length
] = '\0';
4524 else if (save_temps_prefix
!= NULL
)
4526 free (save_temps_prefix
);
4527 save_temps_prefix
= NULL
;
4530 if (save_temps_flag
&& use_pipes
)
4532 /* -save-temps overrides -pipe, so that temp files are produced */
4533 if (save_temps_flag
)
4534 warning (0, "-pipe ignored because -save-temps specified");
4540 const char *gcd
= env
.get ("GCC_COMPARE_DEBUG");
4542 if (gcd
&& gcd
[0] == '-')
4545 compare_debug_opt
= gcd
;
4547 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4550 compare_debug_opt
= "-gtoggle";
4553 else if (compare_debug
< 0)
4556 gcc_assert (!compare_debug_opt
);
4559 /* Set up the search paths. We add directories that we expect to
4560 contain GNU Toolchain components before directories specified by
4561 the machine description so that we will find GNU components (like
4562 the GNU assembler) before those of the host system. */
4564 /* If we don't know where the toolchain has been installed, use the
4565 configured-in locations. */
4566 if (!gcc_exec_prefix
)
4569 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4570 PREFIX_PRIORITY_LAST
, 1, 0);
4571 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4572 PREFIX_PRIORITY_LAST
, 2, 0);
4573 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4574 PREFIX_PRIORITY_LAST
, 2, 0);
4576 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4577 PREFIX_PRIORITY_LAST
, 1, 0);
4580 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4581 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
4582 dir_separator_str
, NULL
);
4584 /* Look for tools relative to the location from which the driver is
4585 running, or, if that is not available, the configured prefix. */
4587 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4588 spec_host_machine
, dir_separator_str
, spec_version
,
4589 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
4590 free (tooldir_prefix2
);
4592 add_prefix (&exec_prefixes
,
4593 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4594 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4595 add_prefix (&startfile_prefixes
,
4596 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4597 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4598 free (tooldir_prefix
);
4600 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4601 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4602 then consider it to relocate with the rest of the GCC installation
4603 if GCC_EXEC_PREFIX is set.
4604 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4605 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
4607 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4608 standard_bindir_prefix
,
4609 target_system_root
);
4610 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4612 target_system_root
= tmp_prefix
;
4613 target_system_root_changed
= 1;
4618 /* More prefixes are enabled in main, after we read the specs file
4619 and determine whether this is cross-compilation or not. */
4621 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4622 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
4624 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
4625 environment variable. */
4626 if (compare_debug
== 2 || compare_debug
== 3)
4628 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
4629 save_switch (opt
, 0, NULL
, false, true);
4633 /* Ensure we only invoke each subprocess once. */
4634 if (print_subprocess_help
|| print_help_list
|| print_version
)
4638 /* Create a dummy input file, so that we can pass
4639 the help option on to the various sub-processes. */
4640 add_infile ("help-dummy", "c");
4643 /* Decide if undefined variable references are allowed in specs. */
4645 /* -v alone is safe. --version and --help alone or together are safe. Note
4646 that -v would make them unsafe, as they'd then be run for subprocesses as
4647 well, the location of which might depend on variables possibly coming
4648 from self-specs. Note also that the command name is counted in
4649 decoded_options_count. */
4651 unsigned help_version_count
= 0;
4654 help_version_count
++;
4656 if (print_help_list
)
4657 help_version_count
++;
4659 spec_undefvar_allowed
=
4660 ((verbose_flag
&& decoded_options_count
== 2)
4661 || help_version_count
== decoded_options_count
- 1);
4664 switches
[n_switches
].part1
= 0;
4666 infiles
[n_infiles
].name
= 0;
4669 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4670 and place that in the environment. */
4673 set_collect_gcc_options (void)
4678 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4680 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4681 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4684 for (i
= 0; (int) i
< n_switches
; i
++)
4686 const char *const *args
;
4689 obstack_grow (&collect_obstack
, " ", 1);
4693 /* Ignore elided switches. */
4694 if ((switches
[i
].live_cond
4695 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
4699 obstack_grow (&collect_obstack
, "'-", 2);
4700 q
= switches
[i
].part1
;
4701 while ((p
= strchr (q
, '\'')))
4703 obstack_grow (&collect_obstack
, q
, p
- q
);
4704 obstack_grow (&collect_obstack
, "'\\''", 4);
4707 obstack_grow (&collect_obstack
, q
, strlen (q
));
4708 obstack_grow (&collect_obstack
, "'", 1);
4710 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4712 obstack_grow (&collect_obstack
, " '", 2);
4714 while ((p
= strchr (q
, '\'')))
4716 obstack_grow (&collect_obstack
, q
, p
- q
);
4717 obstack_grow (&collect_obstack
, "'\\''", 4);
4720 obstack_grow (&collect_obstack
, q
, strlen (q
));
4721 obstack_grow (&collect_obstack
, "'", 1);
4724 obstack_grow (&collect_obstack
, "\0", 1);
4725 xputenv (XOBFINISH (&collect_obstack
, char *));
4728 /* Process a spec string, accumulating and running commands. */
4730 /* These variables describe the input file name.
4731 input_file_number is the index on outfiles of this file,
4732 so that the output file name can be stored for later use by %o.
4733 input_basename is the start of the part of the input file
4734 sans all directory names, and basename_length is the number
4735 of characters starting there excluding the suffix .c or whatever. */
4737 static const char *gcc_input_filename
;
4738 static int input_file_number
;
4739 size_t input_filename_length
;
4740 static int basename_length
;
4741 static int suffixed_basename_length
;
4742 static const char *input_basename
;
4743 static const char *input_suffix
;
4744 #ifndef HOST_LACKS_INODE_NUMBERS
4745 static struct stat input_stat
;
4747 static int input_stat_set
;
4749 /* The compiler used to process the current input file. */
4750 static struct compiler
*input_file_compiler
;
4752 /* These are variables used within do_spec and do_spec_1. */
4754 /* Nonzero if an arg has been started and not yet terminated
4755 (with space, tab or newline). */
4756 static int arg_going
;
4758 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4759 is a temporary file name. */
4760 static int delete_this_arg
;
4762 /* Nonzero means %w has been seen; the next arg to be terminated
4763 is the output file name of this compilation. */
4764 static int this_is_output_file
;
4766 /* Nonzero means %s has been seen; the next arg to be terminated
4767 is the name of a library file and we should try the standard
4768 search dirs for it. */
4769 static int this_is_library_file
;
4771 /* Nonzero means %T has been seen; the next arg to be terminated
4772 is the name of a linker script and we should try all of the
4773 standard search dirs for it. If it is found insert a --script
4774 command line switch and then substitute the full path in place,
4775 otherwise generate an error message. */
4776 static int this_is_linker_script
;
4778 /* Nonzero means that the input of this command is coming from a pipe. */
4779 static int input_from_pipe
;
4781 /* Nonnull means substitute this for any suffix when outputting a switches
4783 static const char *suffix_subst
;
4785 /* If there is an argument being accumulated, terminate it and store it. */
4788 end_going_arg (void)
4794 obstack_1grow (&obstack
, 0);
4795 string
= XOBFINISH (&obstack
, const char *);
4796 if (this_is_library_file
)
4797 string
= find_file (string
);
4798 if (this_is_linker_script
)
4800 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4802 if (full_script_path
== NULL
)
4804 error ("unable to locate default linker script %qs in the library search paths", string
);
4805 /* Script was not found on search path. */
4808 store_arg ("--script", false, false);
4809 string
= full_script_path
;
4811 store_arg (string
, delete_this_arg
, this_is_output_file
);
4812 if (this_is_output_file
)
4813 outfiles
[input_file_number
] = string
;
4819 /* Parse the WRAPPER string which is a comma separated list of the command line
4820 and insert them into the beginning of argbuf. */
4823 insert_wrapper (const char *wrapper
)
4827 char *buf
= xstrdup (wrapper
);
4829 unsigned int old_length
= argbuf
.length ();
4837 while ((p
= strchr (p
, ',')) != NULL
);
4839 argbuf
.safe_grow (old_length
+ n
);
4840 memmove (argbuf
.address () + n
,
4842 old_length
* sizeof (const_char_p
));
4856 while ((p
= strchr (p
, ',')) != NULL
);
4857 gcc_assert (i
== n
);
4860 /* Process the spec SPEC and run the commands specified therein.
4861 Returns 0 if the spec is successfully processed; -1 if failed. */
4864 do_spec (const char *spec
)
4868 value
= do_spec_2 (spec
);
4870 /* Force out any unfinished command.
4871 If -pipe, this forces out the last command if it ended in `|'. */
4874 if (argbuf
.length () > 0
4875 && !strcmp (argbuf
.last (), "|"))
4878 set_collect_gcc_options ();
4880 if (argbuf
.length () > 0)
4888 do_spec_2 (const char *spec
)
4894 delete_this_arg
= 0;
4895 this_is_output_file
= 0;
4896 this_is_library_file
= 0;
4897 this_is_linker_script
= 0;
4898 input_from_pipe
= 0;
4899 suffix_subst
= NULL
;
4901 result
= do_spec_1 (spec
, 0, NULL
);
4909 /* Process the given spec string and add any new options to the end
4910 of the switches/n_switches array. */
4913 do_option_spec (const char *name
, const char *spec
)
4915 unsigned int i
, value_count
, value_len
;
4916 const char *p
, *q
, *value
;
4917 char *tmp_spec
, *tmp_spec_p
;
4919 if (configure_default_options
[0].name
== NULL
)
4922 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4923 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4925 if (i
== ARRAY_SIZE (configure_default_options
))
4928 value
= configure_default_options
[i
].value
;
4929 value_len
= strlen (value
);
4931 /* Compute the size of the final spec. */
4934 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4940 /* Replace each %(VALUE) by the specified value. */
4941 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4942 + value_count
* (value_len
- strlen ("%(VALUE)")));
4943 tmp_spec_p
= tmp_spec
;
4945 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4947 memcpy (tmp_spec_p
, q
, p
- q
);
4948 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4949 memcpy (tmp_spec_p
, value
, value_len
);
4950 tmp_spec_p
+= value_len
;
4951 q
= p
+ strlen ("%(VALUE)");
4953 strcpy (tmp_spec_p
, q
);
4955 do_self_spec (tmp_spec
);
4958 /* Process the given spec string and add any new options to the end
4959 of the switches/n_switches array. */
4962 do_self_spec (const char *spec
)
4967 do_spec_1 (" ", 0, NULL
);
4969 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4970 do_self_specs adds the replacements to switches array, so it shouldn't
4971 be processed afterwards. */
4972 for (i
= 0; i
< n_switches
; i
++)
4973 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4974 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4976 if (argbuf
.length () > 0)
4978 const char **argbuf_copy
;
4979 struct cl_decoded_option
*decoded_options
;
4980 struct cl_option_handlers handlers
;
4981 unsigned int decoded_options_count
;
4984 /* Create a copy of argbuf with a dummy argv[0] entry for
4985 decode_cmdline_options_to_array. */
4986 argbuf_copy
= XNEWVEC (const char *,
4987 argbuf
.length () + 1);
4988 argbuf_copy
[0] = "";
4989 memcpy (argbuf_copy
+ 1, argbuf
.address (),
4990 argbuf
.length () * sizeof (const char *));
4992 decode_cmdline_options_to_array (argbuf
.length () + 1,
4994 CL_DRIVER
, &decoded_options
,
4995 &decoded_options_count
);
4998 set_option_handlers (&handlers
);
5000 for (j
= 1; j
< decoded_options_count
; j
++)
5002 switch (decoded_options
[j
].opt_index
)
5004 case OPT_SPECIAL_input_file
:
5005 /* Specs should only generate options, not input
5007 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
5008 fatal_error (input_location
,
5009 "switch %qs does not start with %<-%>",
5010 decoded_options
[j
].arg
);
5012 fatal_error (input_location
,
5013 "spec-generated switch is just %<-%>");
5016 case OPT_fcompare_debug_second
:
5017 case OPT_fcompare_debug
:
5018 case OPT_fcompare_debug_
:
5020 /* Avoid duplicate processing of some options from
5021 compare-debug specs; just save them here. */
5022 save_switch (decoded_options
[j
].canonical_option
[0],
5023 (decoded_options
[j
].canonical_option_num_elements
5025 &decoded_options
[j
].canonical_option
[1], false, true);
5029 read_cmdline_option (&global_options
, &global_options_set
,
5030 decoded_options
+ j
, UNKNOWN_LOCATION
,
5031 CL_DRIVER
, &handlers
, global_dc
);
5036 free (decoded_options
);
5039 switches
[n_switches
].part1
= 0;
5043 /* Callback for processing %D and %I specs. */
5045 struct spec_path_info
{
5050 bool separate_options
;
5054 spec_path (char *path
, void *data
)
5056 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
5060 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
5063 if (info
->append_len
!= 0)
5065 len
= strlen (path
);
5066 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
5069 if (!is_directory (path
, true))
5072 do_spec_1 (info
->option
, 1, NULL
);
5073 if (info
->separate_options
)
5074 do_spec_1 (" ", 0, NULL
);
5076 if (info
->append_len
== 0)
5078 len
= strlen (path
);
5079 save
= path
[len
- 1];
5080 if (IS_DIR_SEPARATOR (path
[len
- 1]))
5081 path
[len
- 1] = '\0';
5084 do_spec_1 (path
, 1, NULL
);
5085 do_spec_1 (" ", 0, NULL
);
5087 /* Must not damage the original path. */
5088 if (info
->append_len
== 0)
5089 path
[len
- 1] = save
;
5094 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
5098 create_at_file (char **argv
)
5100 char *temp_file
= make_temp_file ("");
5101 char *at_argument
= concat ("@", temp_file
, NULL
);
5102 FILE *f
= fopen (temp_file
, "w");
5106 fatal_error (input_location
, "could not open temporary response file %s",
5109 status
= writeargv (argv
, f
);
5112 fatal_error (input_location
,
5113 "could not write to temporary response file %s",
5116 status
= fclose (f
);
5119 fatal_error (input_location
, "could not close temporary response file %s",
5122 store_arg (at_argument
, 0, 0);
5124 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5127 /* True if we should compile INFILE. */
5130 compile_input_file_p (struct infile
*infile
)
5132 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5133 if (infile
->incompiler
== input_file_compiler
)
5138 /* Process each member of VEC as a spec. */
5141 do_specs_vec (vec
<char_p
> vec
)
5146 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
5148 do_spec_1 (opt
, 1, NULL
);
5149 /* Make each accumulated option a separate argument. */
5150 do_spec_1 (" ", 0, NULL
);
5154 /* Process the sub-spec SPEC as a portion of a larger spec.
5155 This is like processing a whole spec except that we do
5156 not initialize at the beginning and we do not supply a
5157 newline by default at the end.
5158 INSWITCH nonzero means don't process %-sequences in SPEC;
5159 in this case, % is treated as an ordinary character.
5160 This is used while substituting switches.
5161 INSWITCH nonzero also causes SPC not to terminate an argument.
5163 Value is zero unless a line was finished
5164 and the command on that line reported an error. */
5167 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5169 const char *p
= spec
;
5174 /* If it's an empty string argument to a switch, keep it as is. */
5175 if (inswitch
&& !*p
)
5179 /* If substituting a switch, treat all chars like letters.
5180 Otherwise, NL, SPC, TAB and % are special. */
5181 switch (inswitch
? 'a' : c
)
5186 if (argbuf
.length () > 0
5187 && !strcmp (argbuf
.last (), "|"))
5189 /* A `|' before the newline means use a pipe here,
5190 but only if -pipe was specified.
5191 Otherwise, execute now and don't pass the `|' as an arg. */
5194 input_from_pipe
= 1;
5201 set_collect_gcc_options ();
5203 if (argbuf
.length () > 0)
5209 /* Reinitialize for a new command, and for a new argument. */
5212 delete_this_arg
= 0;
5213 this_is_output_file
= 0;
5214 this_is_library_file
= 0;
5215 this_is_linker_script
= 0;
5216 input_from_pipe
= 0;
5223 obstack_1grow (&obstack
, c
);
5231 /* Reinitialize for a new argument. */
5232 delete_this_arg
= 0;
5233 this_is_output_file
= 0;
5234 this_is_library_file
= 0;
5235 this_is_linker_script
= 0;
5242 fatal_error (input_location
, "spec %qs invalid", spec
);
5245 if (save_temps_length
)
5246 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5248 obstack_grow (&obstack
, input_basename
, basename_length
);
5249 if (compare_debug
< 0)
5250 obstack_grow (&obstack
, ".gk", 3);
5255 if (save_temps_length
)
5256 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5258 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
5259 if (compare_debug
< 0)
5260 obstack_grow (&obstack
, ".gk", 3);
5265 delete_this_arg
= 2;
5268 /* Dump out the directories specified with LIBRARY_PATH,
5269 followed by the absolute directories
5270 that we search for startfiles. */
5273 struct spec_path_info info
;
5276 info
.append_len
= 0;
5277 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5278 /* Used on systems which record the specified -L dirs
5279 and use them to search for dynamic linking.
5280 Relative directories always come from -B,
5281 and it is better not to use them for searching
5282 at run time. In particular, stage1 loses. */
5283 info
.omit_relative
= true;
5285 info
.omit_relative
= false;
5287 info
.separate_options
= false;
5289 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5294 /* %efoo means report an error with `foo' as error message
5295 and don't execute any more commands for this file. */
5299 while (*p
!= 0 && *p
!= '\n')
5301 buf
= (char *) alloca (p
- q
+ 1);
5302 strncpy (buf
, q
, p
- q
);
5304 error ("%s", _(buf
));
5309 /* %nfoo means report a notice with `foo' on stderr. */
5313 while (*p
!= 0 && *p
!= '\n')
5315 buf
= (char *) alloca (p
- q
+ 1);
5316 strncpy (buf
, q
, p
- q
);
5318 inform (UNKNOWN_LOCATION
, "%s", _(buf
));
5328 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5329 defined, and it is not a directory, and it is
5330 writable, use it. Otherwise, treat this like any
5331 other temporary file. */
5333 if ((!save_temps_flag
)
5334 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5335 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5337 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5338 strlen (HOST_BIT_BUCKET
));
5339 delete_this_arg
= 0;
5344 goto create_temp_file
;
5348 obstack_1grow (&obstack
, '-');
5349 delete_this_arg
= 0;
5352 /* consume suffix */
5353 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5355 if (p
[0] == '%' && p
[1] == 'O')
5360 goto create_temp_file
;
5364 /* consume suffix */
5365 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5367 if (p
[0] == '%' && p
[1] == 'O')
5372 goto create_temp_file
;
5378 struct temp_name
*t
;
5380 const char *suffix
= p
;
5381 char *saved_suffix
= NULL
;
5383 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5385 suffix_length
= p
- suffix
;
5386 if (p
[0] == '%' && p
[1] == 'O')
5389 /* We don't support extra suffix characters after %O. */
5390 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5391 fatal_error (input_location
,
5392 "spec %qs has invalid %<%%0%c%>", spec
, *p
);
5393 if (suffix_length
== 0)
5394 suffix
= TARGET_OBJECT_SUFFIX
;
5398 = XNEWVEC (char, suffix_length
5399 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
5400 strncpy (saved_suffix
, suffix
, suffix_length
);
5401 strcpy (saved_suffix
+ suffix_length
,
5402 TARGET_OBJECT_SUFFIX
);
5404 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5407 if (compare_debug
< 0)
5409 suffix
= concat (".gk", suffix
, NULL
);
5413 /* If -save-temps=obj and -o were specified, use that for the
5415 if (save_temps_length
)
5418 temp_filename_length
5419 = save_temps_length
+ suffix_length
+ 1;
5420 tmp
= (char *) alloca (temp_filename_length
);
5421 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5422 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5423 tmp
[save_temps_length
+ suffix_length
] = '\0';
5424 temp_filename
= save_string (tmp
, save_temps_length
5426 obstack_grow (&obstack
, temp_filename
,
5427 temp_filename_length
);
5429 delete_this_arg
= 0;
5433 /* If the gcc_input_filename has the same suffix specified
5434 for the %g, %u, or %U, and -save-temps is specified,
5435 we could end up using that file as an intermediate
5436 thus clobbering the user's source file (.e.g.,
5437 gcc -save-temps foo.s would clobber foo.s with the
5438 output of cpp0). So check for this condition and
5439 generate a temp file as the intermediate. */
5441 if (save_temps_flag
)
5444 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5445 tmp
= (char *) alloca (temp_filename_length
);
5446 memcpy (tmp
, input_basename
, basename_length
);
5447 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5448 tmp
[basename_length
+ suffix_length
] = '\0';
5449 temp_filename
= tmp
;
5451 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
5453 #ifndef HOST_LACKS_INODE_NUMBERS
5454 struct stat st_temp
;
5456 /* Note, set_input() resets input_stat_set to 0. */
5457 if (input_stat_set
== 0)
5459 input_stat_set
= stat (gcc_input_filename
,
5461 if (input_stat_set
>= 0)
5465 /* If we have the stat for the gcc_input_filename
5466 and we can do the stat for the temp_filename
5467 then the they could still refer to the same
5468 file if st_dev/st_ino's are the same. */
5469 if (input_stat_set
!= 1
5470 || stat (temp_filename
, &st_temp
) < 0
5471 || input_stat
.st_dev
!= st_temp
.st_dev
5472 || input_stat
.st_ino
!= st_temp
.st_ino
)
5474 /* Just compare canonical pathnames. */
5475 char* input_realname
= lrealpath (gcc_input_filename
);
5476 char* temp_realname
= lrealpath (temp_filename
);
5477 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
5478 free (input_realname
);
5479 free (temp_realname
);
5484 = save_string (temp_filename
,
5485 temp_filename_length
- 1);
5486 obstack_grow (&obstack
, temp_filename
,
5487 temp_filename_length
);
5489 delete_this_arg
= 0;
5495 /* See if we already have an association of %g/%u/%U and
5497 for (t
= temp_names
; t
; t
= t
->next
)
5498 if (t
->length
== suffix_length
5499 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5500 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5503 /* Make a new association if needed. %u and %j
5505 if (t
== 0 || c
== 'u' || c
== 'j')
5509 t
= XNEW (struct temp_name
);
5510 t
->next
= temp_names
;
5513 t
->length
= suffix_length
;
5516 t
->suffix
= saved_suffix
;
5517 saved_suffix
= NULL
;
5520 t
->suffix
= save_string (suffix
, suffix_length
);
5521 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5522 temp_filename
= make_temp_file (t
->suffix
);
5523 temp_filename_length
= strlen (temp_filename
);
5524 t
->filename
= temp_filename
;
5525 t
->filename_length
= temp_filename_length
;
5528 free (saved_suffix
);
5530 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5531 delete_this_arg
= 1;
5539 if (at_file_supplied
)
5541 /* We are going to expand `%i' to `@FILE', where FILE
5542 is a newly-created temporary filename. The filenames
5543 that would usually be expanded in place of %o will be
5544 written to the temporary file. */
5549 for (i
= 0; i
< n_infiles
; i
++)
5550 if (compile_input_file_p (&infiles
[i
]))
5553 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5555 /* Copy the strings over. */
5556 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5557 if (compile_input_file_p (&infiles
[i
]))
5559 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5560 infiles
[i
].compiled
= true;
5565 create_at_file (argv
);
5568 for (i
= 0; (int) i
< n_infiles
; i
++)
5569 if (compile_input_file_p (&infiles
[i
]))
5571 store_arg (infiles
[i
].name
, 0, 0);
5572 infiles
[i
].compiled
= true;
5577 obstack_grow (&obstack
, gcc_input_filename
,
5578 input_filename_length
);
5585 struct spec_path_info info
;
5589 do_spec_1 ("-imultilib", 1, NULL
);
5590 /* Make this a separate argument. */
5591 do_spec_1 (" ", 0, NULL
);
5592 do_spec_1 (multilib_dir
, 1, NULL
);
5593 do_spec_1 (" ", 0, NULL
);
5598 do_spec_1 ("-imultiarch", 1, NULL
);
5599 /* Make this a separate argument. */
5600 do_spec_1 (" ", 0, NULL
);
5601 do_spec_1 (multiarch_dir
, 1, NULL
);
5602 do_spec_1 (" ", 0, NULL
);
5605 if (gcc_exec_prefix
)
5607 do_spec_1 ("-iprefix", 1, NULL
);
5608 /* Make this a separate argument. */
5609 do_spec_1 (" ", 0, NULL
);
5610 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5611 do_spec_1 (" ", 0, NULL
);
5614 if (target_system_root_changed
||
5615 (target_system_root
&& target_sysroot_hdrs_suffix
))
5617 do_spec_1 ("-isysroot", 1, NULL
);
5618 /* Make this a separate argument. */
5619 do_spec_1 (" ", 0, NULL
);
5620 do_spec_1 (target_system_root
, 1, NULL
);
5621 if (target_sysroot_hdrs_suffix
)
5622 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5623 do_spec_1 (" ", 0, NULL
);
5626 info
.option
= "-isystem";
5627 info
.append
= "include";
5628 info
.append_len
= strlen (info
.append
);
5629 info
.omit_relative
= false;
5630 info
.separate_options
= true;
5632 for_each_path (&include_prefixes
, false, info
.append_len
,
5635 info
.append
= "include-fixed";
5636 if (*sysroot_hdrs_suffix_spec
)
5637 info
.append
= concat (info
.append
, dir_separator_str
,
5638 multilib_dir
, NULL
);
5639 info
.append_len
= strlen (info
.append
);
5640 for_each_path (&include_prefixes
, false, info
.append_len
,
5647 int max
= n_infiles
;
5648 max
+= lang_specific_extra_outfiles
;
5650 if (HAVE_GNU_LD
&& at_file_supplied
)
5652 /* We are going to expand `%o' to `@FILE', where FILE
5653 is a newly-created temporary filename. The filenames
5654 that would usually be expanded in place of %o will be
5655 written to the temporary file. */
5660 /* Convert OUTFILES into a form suitable for writeargv. */
5662 /* Determine how many are non-NULL. */
5663 for (n_files
= 0, i
= 0; i
< max
; i
++)
5664 n_files
+= outfiles
[i
] != NULL
;
5666 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5668 /* Copy the strings over. */
5669 for (i
= 0, j
= 0; i
< max
; i
++)
5672 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5677 create_at_file (argv
);
5680 for (i
= 0; i
< max
; i
++)
5682 store_arg (outfiles
[i
], 0, 0);
5687 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5692 this_is_library_file
= 1;
5696 this_is_linker_script
= 1;
5700 outfiles
[input_file_number
] = NULL
;
5704 this_is_output_file
= 1;
5709 unsigned int cur_index
= argbuf
.length ();
5710 /* Handle the {...} following the %W. */
5712 fatal_error (input_location
,
5713 "spec %qs has invalid %<%%W%c%>", spec
, *p
);
5714 p
= handle_braces (p
+ 1);
5718 /* If any args were output, mark the last one for deletion
5720 if (argbuf
.length () != cur_index
)
5721 record_temp_file (argbuf
.last (), 0, 1);
5725 /* %x{OPTION} records OPTION for %X to output. */
5733 /* Skip past the option value and make a copy. */
5735 fatal_error (input_location
,
5736 "spec %qs has invalid %<%%x%c%>", spec
, *p
);
5739 string
= save_string (p1
+ 1, p
- p1
- 2);
5741 /* See if we already recorded this option. */
5742 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
5743 if (! strcmp (string
, opt
))
5749 /* This option is new; add it. */
5750 add_linker_option (string
, strlen (string
));
5755 /* Dump out the options accumulated previously using %x. */
5757 do_specs_vec (linker_options
);
5760 /* Dump out the options accumulated previously using -Wa,. */
5762 do_specs_vec (assembler_options
);
5765 /* Dump out the options accumulated previously using -Wp,. */
5767 do_specs_vec (preprocessor_options
);
5770 /* Here are digits and numbers that just process
5771 a certain constant string as a spec. */
5774 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5780 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5786 value
= do_spec_1 (asm_spec
, 0, NULL
);
5792 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5799 const char *const spec
5800 = (input_file_compiler
->cpp_spec
5801 ? input_file_compiler
->cpp_spec
5803 value
= do_spec_1 (spec
, 0, NULL
);
5810 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5816 value
= do_spec_1 (link_spec
, 0, NULL
);
5822 value
= do_spec_1 (lib_spec
, 0, NULL
);
5828 if (multilib_os_dir
== NULL
)
5829 obstack_1grow (&obstack
, '.');
5831 obstack_grow (&obstack
, multilib_os_dir
,
5832 strlen (multilib_os_dir
));
5836 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5842 /* We assume there is a directory
5843 separator at the end of this string. */
5844 if (target_system_root
)
5846 obstack_grow (&obstack
, target_system_root
,
5847 strlen (target_system_root
));
5848 if (target_sysroot_suffix
)
5849 obstack_grow (&obstack
, target_sysroot_suffix
,
5850 strlen (target_sysroot_suffix
));
5855 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5860 /* Here we define characters other than letters and digits. */
5863 p
= handle_braces (p
);
5869 p
= handle_spec_function (p
, NULL
);
5875 obstack_1grow (&obstack
, '%');
5882 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5884 suffix_subst
= save_string (p
- 1, len
+ 1);
5889 /* Henceforth ignore the option(s) matching the pattern
5895 int have_wildcard
= 0;
5900 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
5902 switch_option
= SWITCH_IGNORE
;
5904 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5907 if (p
[len
-1] == '*')
5910 for (i
= 0; i
< n_switches
; i
++)
5911 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5912 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5914 switches
[i
].live_cond
|= switch_option
;
5915 /* User switch be validated from validate_all_switches.
5916 when the definition is seen from the spec file.
5917 If not defined anywhere, will be rejected. */
5918 if (switches
[i
].known
)
5919 switches
[i
].validated
= true;
5927 if (soft_matched_part
)
5929 if (soft_matched_part
[0])
5930 do_spec_1 (soft_matched_part
, 1, NULL
);
5931 /* Only insert a space after the substitution if it is at the
5932 end of the current sequence. So if:
5934 "%{foo=*:bar%*}%{foo=*:one%*two}"
5936 matches -foo=hello then it will produce:
5938 barhello onehellotwo
5940 if (*p
== 0 || *p
== '}')
5941 do_spec_1 (" ", 0, NULL
);
5944 /* Catch the case where a spec string contains something like
5945 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5946 hand side of the :. */
5947 error ("spec failure: %<%%*%> has not been initialized by pattern match");
5950 /* Process a string found as the value of a spec given by name.
5951 This feature allows individual machine descriptions
5952 to add and use their own specs. */
5955 const char *name
= p
;
5956 struct spec_list
*sl
;
5959 /* The string after the S/P is the name of a spec that is to be
5961 while (*p
&& *p
!= ')')
5964 /* See if it's in the list. */
5965 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5966 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5968 name
= *(sl
->ptr_spec
);
5970 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
5978 value
= do_spec_1 (name
, 0, NULL
);
5983 /* Discard the closing paren. */
5990 error ("spec failure: unrecognized spec option %qc", c
);
5996 /* Backslash: treat next character as ordinary. */
6001 /* Ordinary character: put it into the current argument. */
6002 obstack_1grow (&obstack
, c
);
6006 /* End of string. If we are processing a spec function, we need to
6007 end any pending argument. */
6008 if (processing_spec_function
)
6014 /* Look up a spec function. */
6016 static const struct spec_function
*
6017 lookup_spec_function (const char *name
)
6019 const struct spec_function
*sf
;
6021 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
6022 if (strcmp (sf
->name
, name
) == 0)
6028 /* Evaluate a spec function. */
6031 eval_spec_function (const char *func
, const char *args
)
6033 const struct spec_function
*sf
;
6034 const char *funcval
;
6036 /* Saved spec processing context. */
6037 vec
<const_char_p
> save_argbuf
;
6040 int save_delete_this_arg
;
6041 int save_this_is_output_file
;
6042 int save_this_is_library_file
;
6043 int save_input_from_pipe
;
6044 int save_this_is_linker_script
;
6045 const char *save_suffix_subst
;
6047 int save_growing_size
;
6048 void *save_growing_value
= NULL
;
6050 sf
= lookup_spec_function (func
);
6052 fatal_error (input_location
, "unknown spec function %qs", func
);
6054 /* Push the spec processing context. */
6055 save_argbuf
= argbuf
;
6057 save_arg_going
= arg_going
;
6058 save_delete_this_arg
= delete_this_arg
;
6059 save_this_is_output_file
= this_is_output_file
;
6060 save_this_is_library_file
= this_is_library_file
;
6061 save_this_is_linker_script
= this_is_linker_script
;
6062 save_input_from_pipe
= input_from_pipe
;
6063 save_suffix_subst
= suffix_subst
;
6065 /* If we have some object growing now, finalize it so the args and function
6066 eval proceed from a cleared context. This is needed to prevent the first
6067 constructed arg from mistakenly including the growing value. We'll push
6068 this value back on the obstack once the function evaluation is done, to
6069 restore a consistent processing context for our caller. This is fine as
6070 the address of growing objects isn't guaranteed to remain stable until
6071 they are finalized, and we expect this situation to be rare enough for
6072 the extra copy not to be an issue. */
6073 save_growing_size
= obstack_object_size (&obstack
);
6074 if (save_growing_size
> 0)
6075 save_growing_value
= obstack_finish (&obstack
);
6077 /* Create a new spec processing context, and build the function
6081 if (do_spec_2 (args
) < 0)
6082 fatal_error (input_location
, "error in args to spec function %qs", func
);
6084 /* argbuf_index is an index for the next argument to be inserted, and
6085 so contains the count of the args already inserted. */
6087 funcval
= (*sf
->func
) (argbuf
.length (),
6090 /* Pop the spec processing context. */
6092 argbuf
= save_argbuf
;
6094 arg_going
= save_arg_going
;
6095 delete_this_arg
= save_delete_this_arg
;
6096 this_is_output_file
= save_this_is_output_file
;
6097 this_is_library_file
= save_this_is_library_file
;
6098 this_is_linker_script
= save_this_is_linker_script
;
6099 input_from_pipe
= save_input_from_pipe
;
6100 suffix_subst
= save_suffix_subst
;
6102 if (save_growing_size
> 0)
6103 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
6108 /* Handle a spec function call of the form:
6112 ARGS is processed as a spec in a separate context and split into an
6113 argument vector in the normal fashion. The function returns a string
6114 containing a spec which we then process in the caller's context, or
6115 NULL if no processing is required.
6117 If RETVAL_NONNULL is not NULL, then store a bool whether function
6118 returned non-NULL. */
6121 handle_spec_function (const char *p
, bool *retval_nonnull
)
6124 const char *endp
, *funcval
;
6127 processing_spec_function
++;
6129 /* Get the function name. */
6130 for (endp
= p
; *endp
!= '\0'; endp
++)
6132 if (*endp
== '(') /* ) */
6134 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6135 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6136 fatal_error (input_location
, "malformed spec function name");
6138 if (*endp
!= '(') /* ) */
6139 fatal_error (input_location
, "no arguments for spec function");
6140 func
= save_string (p
, endp
- p
);
6143 /* Get the arguments. */
6144 for (count
= 0; *endp
!= '\0'; endp
++)
6153 else if (*endp
== '(') /* ) */
6158 fatal_error (input_location
, "malformed spec function arguments");
6159 args
= save_string (p
, endp
- p
);
6162 /* p now points to just past the end of the spec function expression. */
6164 funcval
= eval_spec_function (func
, args
);
6165 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6168 *retval_nonnull
= funcval
!= NULL
;
6173 processing_spec_function
--;
6178 /* Inline subroutine of handle_braces. Returns true if the current
6179 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6181 input_suffix_matches (const char *atom
, const char *end_atom
)
6183 return (input_suffix
6184 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6185 && input_suffix
[end_atom
- atom
] == '\0');
6188 /* Subroutine of handle_braces. Returns true if the current
6189 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6191 input_spec_matches (const char *atom
, const char *end_atom
)
6193 return (input_file_compiler
6194 && input_file_compiler
->suffix
6195 && input_file_compiler
->suffix
[0] != '\0'
6196 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6198 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6201 /* Subroutine of handle_braces. Returns true if a switch
6202 matching the atom bracketed by ATOM and END_ATOM appeared on the
6205 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6208 int len
= end_atom
- atom
;
6209 int plen
= starred
? len
: -1;
6211 for (i
= 0; i
< n_switches
; i
++)
6212 if (!strncmp (switches
[i
].part1
, atom
, len
)
6213 && (starred
|| switches
[i
].part1
[len
] == '\0')
6214 && check_live_switch (i
, plen
))
6217 /* Check if a switch with separated form matching the atom.
6218 We check -D and -U switches. */
6219 else if (switches
[i
].args
!= 0)
6221 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
6222 && *switches
[i
].part1
== atom
[0])
6224 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
6225 && (starred
|| (switches
[i
].part1
[1] == '\0'
6226 && switches
[i
].args
[0][len
- 1] == '\0'))
6227 && check_live_switch (i
, (starred
? 1 : -1)))
6235 /* Inline subroutine of handle_braces. Mark all of the switches which
6236 match ATOM (extends to END_ATOM; STARRED indicates whether there
6237 was a star after the atom) for later processing. */
6239 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6242 int len
= end_atom
- atom
;
6243 int plen
= starred
? len
: -1;
6245 for (i
= 0; i
< n_switches
; i
++)
6246 if (!strncmp (switches
[i
].part1
, atom
, len
)
6247 && (starred
|| switches
[i
].part1
[len
] == '\0')
6248 && check_live_switch (i
, plen
))
6249 switches
[i
].ordering
= 1;
6252 /* Inline subroutine of handle_braces. Process all the currently
6253 marked switches through give_switch, and clear the marks. */
6255 process_marked_switches (void)
6259 for (i
= 0; i
< n_switches
; i
++)
6260 if (switches
[i
].ordering
== 1)
6262 switches
[i
].ordering
= 0;
6267 /* Handle a %{ ... } construct. P points just inside the leading {.
6268 Returns a pointer one past the end of the brace block, or 0
6269 if we call do_spec_1 and that returns -1. */
6272 handle_braces (const char *p
)
6274 const char *atom
, *end_atom
;
6275 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6276 char *esc_buf
= NULL
, *d_esc_buf
= NULL
;
6278 const char *orig
= p
;
6286 bool a_must_be_last
= false;
6287 bool ordered_set
= false;
6288 bool disjunct_set
= false;
6289 bool disj_matched
= false;
6290 bool disj_starred
= true;
6291 bool n_way_choice
= false;
6292 bool n_way_matched
= false;
6294 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6301 /* Scan one "atom" (S in the description above of %{}, possibly
6302 with '!', '.', '@', ',', or '*' modifiers). */
6304 a_is_suffix
= false;
6305 a_is_starred
= false;
6306 a_is_negated
= false;
6307 a_is_spectype
= false;
6311 p
++, a_is_negated
= true;
6314 if (*p
== '%' && p
[1] == ':')
6318 p
= handle_spec_function (p
+ 2, &a_matched
);
6323 p
++, a_is_suffix
= true;
6325 p
++, a_is_spectype
= true;
6329 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6330 || *p
== ',' || *p
== '.' || *p
== '@' || *p
== '\\')
6336 fatal_error (input_location
,
6337 "braced spec %qs ends in escape", orig
);
6349 if (esc_buf
&& esc_buf
!= d_esc_buf
)
6352 ep
= esc_buf
= (char *) xmalloc (end_atom
- atom
- esc
+ 1);
6353 for (ap
= atom
; ap
!= end_atom
; ap
++, ep
++)
6365 p
++, a_is_starred
= 1;
6372 /* Substitute the switch(es) indicated by the current atom. */
6374 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6375 || a_is_spectype
|| atom
== end_atom
)
6378 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6381 process_marked_switches ();
6385 /* Substitute some text if the current atom appears as a switch
6387 disjunct_set
= true;
6391 if (atom
&& atom
== end_atom
)
6393 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6394 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6398 /* An empty term may appear as the last choice of an
6399 N-way choice set; it means "otherwise". */
6400 a_must_be_last
= true;
6401 disj_matched
= !n_way_matched
;
6402 disj_starred
= false;
6406 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6410 disj_starred
= false;
6412 /* Don't bother testing this atom if we already have a
6414 if (!disj_matched
&& !n_way_matched
)
6417 /* a_matched is already set by handle_spec_function. */;
6418 else if (a_is_suffix
)
6419 a_matched
= input_suffix_matches (atom
, end_atom
);
6420 else if (a_is_spectype
)
6421 a_matched
= input_spec_matches (atom
, end_atom
);
6423 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6425 if (a_matched
!= a_is_negated
)
6427 disj_matched
= true;
6429 d_end_atom
= end_atom
;
6430 d_esc_buf
= esc_buf
;
6437 /* Found the body, that is, the text to substitute if the
6438 current disjunction matches. */
6439 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6440 disj_matched
&& !n_way_matched
);
6444 /* If we have an N-way choice, reset state for the next
6448 n_way_choice
= true;
6449 n_way_matched
|= disj_matched
;
6450 disj_matched
= false;
6451 disj_starred
= true;
6452 d_atom
= d_end_atom
= NULL
;
6461 while (*p
++ != '}');
6464 if (d_esc_buf
&& d_esc_buf
!= esc_buf
)
6472 fatal_error (input_location
, "braced spec %qs is invalid at %qc", orig
, *p
);
6477 /* Subroutine of handle_braces. Scan and process a brace substitution body
6478 (X in the description of %{} syntax). P points one past the colon;
6479 ATOM and END_ATOM bracket the first atom which was found to be true
6480 (present) in the current disjunction; STARRED indicates whether all
6481 the atoms in the current disjunction were starred (for syntax validation);
6482 MATCHED indicates whether the disjunction matched or not, and therefore
6483 whether or not the body is to be processed through do_spec_1 or just
6484 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6488 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6489 int starred
, int matched
)
6491 const char *body
, *end_body
;
6492 unsigned int nesting_level
;
6493 bool have_subst
= false;
6495 /* Locate the closing } or ;, honoring nested braces.
6496 Trim trailing whitespace. */
6505 if (!--nesting_level
)
6508 else if (*p
== ';' && nesting_level
== 1)
6510 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6512 else if (*p
== '\0')
6518 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6521 if (have_subst
&& !starred
)
6526 /* Copy the substitution body to permanent storage and execute it.
6527 If have_subst is false, this is a simple matter of running the
6528 body through do_spec_1... */
6529 char *string
= save_string (body
, end_body
- body
);
6532 if (do_spec_1 (string
, 0, NULL
) < 0)
6540 /* ... but if have_subst is true, we have to process the
6541 body once for each matching switch, with %* set to the
6542 variant part of the switch. */
6543 unsigned int hard_match_len
= end_atom
- atom
;
6546 for (i
= 0; i
< n_switches
; i
++)
6547 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6548 && check_live_switch (i
, hard_match_len
))
6550 if (do_spec_1 (string
, 0,
6551 &switches
[i
].part1
[hard_match_len
]) < 0)
6556 /* Pass any arguments this switch has. */
6558 suffix_subst
= NULL
;
6567 fatal_error (input_location
, "braced spec body %qs is invalid", body
);
6570 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6571 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6572 spec, or -1 if either exact match or %* is used.
6574 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
6575 whose value does not begin with "no-" is obsoleted by the same value
6576 with the "no-", similarly for a switch with the "no-" prefix. */
6579 check_live_switch (int switchnum
, int prefix_length
)
6581 const char *name
= switches
[switchnum
].part1
;
6584 /* If we already processed this switch and determined if it was
6585 live or not, return our past determination. */
6586 if (switches
[switchnum
].live_cond
!= 0)
6587 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6588 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6589 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6592 /* In the common case of {<at-most-one-letter>*}, a negating
6593 switch would always match, so ignore that case. We will just
6594 send the conflicting switches to the compiler phase. */
6595 if (prefix_length
>= 0 && prefix_length
<= 1)
6598 /* Now search for duplicate in a manner that depends on the name. */
6602 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6603 if (switches
[i
].part1
[0] == 'O')
6605 switches
[switchnum
].validated
= true;
6606 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6611 case 'W': case 'f': case 'm': case 'g':
6612 if (! strncmp (name
+ 1, "no-", 3))
6614 /* We have Xno-YYY, search for XYYY. */
6615 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6616 if (switches
[i
].part1
[0] == name
[0]
6617 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6619 /* --specs are validated with the validate_switches mechanism. */
6620 if (switches
[switchnum
].known
)
6621 switches
[switchnum
].validated
= true;
6622 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6628 /* We have XYYY, search for Xno-YYY. */
6629 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6630 if (switches
[i
].part1
[0] == name
[0]
6631 && switches
[i
].part1
[1] == 'n'
6632 && switches
[i
].part1
[2] == 'o'
6633 && switches
[i
].part1
[3] == '-'
6634 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6636 /* --specs are validated with the validate_switches mechanism. */
6637 if (switches
[switchnum
].known
)
6638 switches
[switchnum
].validated
= true;
6639 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6646 /* Otherwise the switch is live. */
6647 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6651 /* Pass a switch to the current accumulating command
6652 in the same form that we received it.
6653 SWITCHNUM identifies the switch; it is an index into
6654 the vector of switches gcc received, which is `switches'.
6655 This cannot fail since it never finishes a command line.
6657 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6660 give_switch (int switchnum
, int omit_first_word
)
6662 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6665 if (!omit_first_word
)
6667 do_spec_1 ("-", 0, NULL
);
6668 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6671 if (switches
[switchnum
].args
!= 0)
6674 for (p
= switches
[switchnum
].args
; *p
; p
++)
6676 const char *arg
= *p
;
6678 do_spec_1 (" ", 0, NULL
);
6681 unsigned length
= strlen (arg
);
6684 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6685 if (arg
[length
] == '.')
6687 (CONST_CAST (char *, arg
))[length
] = 0;
6691 do_spec_1 (arg
, 1, NULL
);
6693 (CONST_CAST (char *, arg
))[length
] = '.';
6694 do_spec_1 (suffix_subst
, 1, NULL
);
6697 do_spec_1 (arg
, 1, NULL
);
6701 do_spec_1 (" ", 0, NULL
);
6702 switches
[switchnum
].validated
= true;
6705 /* Print GCC configuration (e.g. version, thread model, target,
6706 configuration_arguments) to a given FILE. */
6709 print_configuration (FILE *file
)
6714 fnotice (file
, "Target: %s\n", spec_machine
);
6715 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
6717 #ifdef THREAD_MODEL_SPEC
6718 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
6719 but there's no point in doing all this processing just to get
6720 thread_model back. */
6721 obstack_init (&obstack
);
6722 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
6723 obstack_1grow (&obstack
, '\0');
6724 thrmod
= XOBFINISH (&obstack
, const char *);
6726 thrmod
= thread_model
;
6729 fnotice (file
, "Thread model: %s\n", thrmod
);
6731 /* compiler_version is truncated at the first space when initialized
6732 from version string, so truncate version_string at the first space
6733 before comparing. */
6734 for (n
= 0; version_string
[n
]; n
++)
6735 if (version_string
[n
] == ' ')
6738 if (! strncmp (version_string
, compiler_version
, n
)
6739 && compiler_version
[n
] == 0)
6740 fnotice (file
, "gcc version %s %s\n", version_string
,
6743 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n",
6744 version_string
, pkgversion_string
, compiler_version
);
6748 #define RETRY_ICE_ATTEMPTS 3
6750 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
6753 files_equal_p (char *file1
, char *file2
)
6755 struct stat st1
, st2
;
6758 const int bufsize
= 8192;
6759 char *buf
= XNEWVEC (char, bufsize
);
6761 fd1
= open (file1
, O_RDONLY
);
6762 fd2
= open (file2
, O_RDONLY
);
6764 if (fd1
< 0 || fd2
< 0)
6767 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
6770 if (st1
.st_size
!= st2
.st_size
)
6773 for (n
= st1
.st_size
; n
; n
-= len
)
6776 if ((int) len
> bufsize
/ 2)
6779 if (read (fd1
, buf
, len
) != (int) len
6780 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
6785 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
6802 /* Check that compiler's output doesn't differ across runs.
6803 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
6804 stdout and stderr for each compiler run. Return true if all of
6805 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
6808 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
6811 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
6813 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
6814 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
6816 fnotice (stderr
, "The bug is not reproducible, so it is"
6817 " likely a hardware or OS problem.\n");
6821 return i
== RETRY_ICE_ATTEMPTS
- 2;
6824 enum attempt_status
{
6825 ATTEMPT_STATUS_FAIL_TO_RUN
,
6826 ATTEMPT_STATUS_SUCCESS
,
6831 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
6832 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
6833 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
6834 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
6835 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
6836 ATTEMPT_STATUS_SUCCESS otherwise. */
6838 static enum attempt_status
6839 run_attempt (const char **new_argv
, const char *out_temp
,
6840 const char *err_temp
, int emit_system_info
, int append
)
6843 if (emit_system_info
)
6845 FILE *file_out
= fopen (err_temp
, "a");
6846 print_configuration (file_out
);
6847 fputs ("\n", file_out
);
6853 struct pex_obj
*pex
;
6855 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
6856 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
6859 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
6861 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
6863 fatal_error (input_location
, "pex_init failed: %m");
6865 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
6866 CONST_CAST2 (char *const *, const char **, &new_argv
[1]), out_temp
,
6871 fatal_error (input_location
, errmsg
);
6875 pfatal_with_name (errmsg
);
6879 if (!pex_get_status (pex
, 1, &exit_status
))
6882 switch (WEXITSTATUS (exit_status
))
6885 status
= ATTEMPT_STATUS_ICE
;
6888 case SUCCESS_EXIT_CODE
:
6889 status
= ATTEMPT_STATUS_SUCCESS
;
6901 /* This routine reads lines from IN file, adds C++ style comments
6902 at the begining of each line and writes result into OUT. */
6905 insert_comments (const char *file_in
, const char *file_out
)
6907 FILE *in
= fopen (file_in
, "rb");
6908 FILE *out
= fopen (file_out
, "wb");
6911 bool add_comment
= true;
6912 while (fgets (line
, sizeof (line
), in
))
6917 add_comment
= strchr (line
, '\n') != NULL
;
6924 /* This routine adds preprocessed source code into the given ERR_FILE.
6925 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
6926 add information in report file. RUN_ATTEMPT should return
6927 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
6930 do_report_bug (const char **new_argv
, const int nargs
,
6931 char **out_file
, char **err_file
)
6934 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
6937 write (fd
, "\n//", 3);
6938 for (i
= 0; i
< nargs
; i
++)
6941 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
6943 write (fd
, "\n\n", 2);
6945 new_argv
[nargs
] = "-E";
6946 new_argv
[nargs
+ 1] = NULL
;
6948 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
6950 if (status
== ATTEMPT_STATUS_SUCCESS
)
6952 fnotice (stderr
, "Preprocessed source stored into %s file,"
6953 " please attach this to your bugreport.\n", *out_file
);
6954 /* Make sure it is not deleted. */
6960 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
6961 containing GCC configuration, backtrace, compiler's command line options
6962 and preprocessed source code. */
6965 try_generate_repro (const char **argv
)
6967 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
6968 const char **new_argv
;
6969 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
6970 char **temp_stdout_files
= &temp_files
[0];
6971 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
6973 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
6976 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
6977 /* Only retry compiler ICEs, not preprocessor ones. */
6978 if (! strcmp (argv
[nargs
], "-E"))
6980 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
6987 /* If the compiler is going to output any time information,
6988 it might varry between invocations. */
6989 else if (! strcmp (argv
[nargs
], "-quiet"))
6991 else if (! strcmp (argv
[nargs
], "-ftime-report"))
6994 if (out_arg
== -1 || !quiet
)
6997 memset (temp_files
, '\0', sizeof (temp_files
));
6998 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
6999 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
7000 new_argv
[nargs
++] = "-frandom-seed=0";
7001 new_argv
[nargs
++] = "-fdump-noaddr";
7002 new_argv
[nargs
] = NULL
;
7003 if (new_argv
[out_arg
][2] == '\0')
7004 new_argv
[out_arg
+ 1] = "-";
7006 new_argv
[out_arg
] = "-o-";
7009 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
7011 int emit_system_info
= 0;
7013 temp_stdout_files
[attempt
] = make_temp_file (".out");
7014 temp_stderr_files
[attempt
] = make_temp_file (".err");
7016 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
7019 emit_system_info
= 1;
7022 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
7023 temp_stderr_files
[attempt
], emit_system_info
,
7026 if (status
!= ATTEMPT_STATUS_ICE
)
7028 fnotice (stderr
, "The bug is not reproducible, so it is"
7029 " likely a hardware or OS problem.\n");
7034 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
7038 /* Insert commented out backtrace into report file. */
7039 char **stderr_commented
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
7040 insert_comments (temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
7043 /* In final attempt we append compiler options and preprocesssed code to last
7044 generated .out file with configuration and backtrace. */
7045 char **output
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
7046 do_report_bug (new_argv
, nargs
, stderr_commented
, output
);
7050 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
7053 unlink (temp_stdout_files
[i
]);
7054 free (temp_stdout_files
[i
]);
7058 /* Search for a file named NAME trying various prefixes including the
7059 user's -B prefix and some standard ones.
7060 Return the absolute file name found. If nothing is found, return NAME. */
7063 find_file (const char *name
)
7065 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
7066 return newname
? newname
: name
;
7069 /* Determine whether a directory exists. If LINKER, return 0 for
7070 certain fixed names not needed by the linker. */
7073 is_directory (const char *path1
, bool linker
)
7080 /* Ensure the string ends with "/.". The resulting path will be a
7081 directory even if the given path is a symbolic link. */
7082 len1
= strlen (path1
);
7083 path
= (char *) alloca (3 + len1
);
7084 memcpy (path
, path1
, len1
);
7086 if (!IS_DIR_SEPARATOR (cp
[-1]))
7087 *cp
++ = DIR_SEPARATOR
;
7091 /* Exclude directories that the linker is known to search. */
7093 && IS_DIR_SEPARATOR (path
[0])
7095 && filename_ncmp (path
+ 1, "lib", 3) == 0)
7097 && filename_ncmp (path
+ 1, "usr", 3) == 0
7098 && IS_DIR_SEPARATOR (path
[4])
7099 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
7102 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
7105 /* Set up the various global variables to indicate that we're processing
7106 the input file named FILENAME. */
7109 set_input (const char *filename
)
7113 gcc_input_filename
= filename
;
7114 input_filename_length
= strlen (gcc_input_filename
);
7115 input_basename
= lbasename (gcc_input_filename
);
7117 /* Find a suffix starting with the last period,
7118 and set basename_length to exclude that suffix. */
7119 basename_length
= strlen (input_basename
);
7120 suffixed_basename_length
= basename_length
;
7121 p
= input_basename
+ basename_length
;
7122 while (p
!= input_basename
&& *p
!= '.')
7124 if (*p
== '.' && p
!= input_basename
)
7126 basename_length
= p
- input_basename
;
7127 input_suffix
= p
+ 1;
7132 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
7133 we will need to do a stat on the gcc_input_filename. The
7134 INPUT_STAT_SET signals that the stat is needed. */
7138 /* On fatal signals, delete all the temporary files. */
7141 fatal_signal (int signum
)
7143 signal (signum
, SIG_DFL
);
7144 delete_failure_queue ();
7145 delete_temp_files ();
7146 /* Get the same signal again, this time not handled,
7147 so its normal effect occurs. */
7148 kill (getpid (), signum
);
7151 /* Compare the contents of the two files named CMPFILE[0] and
7152 CMPFILE[1]. Return zero if they're identical, nonzero
7156 compare_files (char *cmpfile
[])
7159 FILE *temp
[2] = { NULL
, NULL
};
7165 void *map
[2] = { NULL
, NULL
};
7167 for (i
= 0; i
< 2; i
++)
7171 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
7173 error ("%s: could not determine length of compare-debug file %s",
7174 gcc_input_filename
, cmpfile
[i
]);
7179 length
[i
] = st
.st_size
;
7182 if (!ret
&& length
[0] != length
[1])
7184 error ("%s: -fcompare-debug failure (length)", gcc_input_filename
);
7189 for (i
= 0; i
< 2; i
++)
7191 int fd
= open (cmpfile
[i
], O_RDONLY
);
7194 error ("%s: could not open compare-debug file %s",
7195 gcc_input_filename
, cmpfile
[i
]);
7200 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
7203 if (map
[i
] == (void *) MAP_FAILED
)
7212 if (memcmp (map
[0], map
[1], length
[0]) != 0)
7214 error ("%s: -fcompare-debug failure", gcc_input_filename
);
7219 for (i
= 0; i
< 2; i
++)
7221 munmap ((caddr_t
) map
[i
], length
[i
]);
7230 for (i
= 0; i
< 2; i
++)
7232 temp
[i
] = fopen (cmpfile
[i
], "r");
7235 error ("%s: could not open compare-debug file %s",
7236 gcc_input_filename
, cmpfile
[i
]);
7242 if (!ret
&& temp
[0] && temp
[1])
7246 c0
= fgetc (temp
[0]);
7247 c1
= fgetc (temp
[1]);
7251 error ("%s: -fcompare-debug failure",
7252 gcc_input_filename
);
7261 for (i
= 1; i
>= 0; i
--)
7270 driver::driver (bool can_finalize
, bool debug
) :
7271 explicit_link_files (NULL
),
7272 decoded_options (NULL
),
7273 m_option_suggestions (NULL
)
7275 env
.init (can_finalize
, debug
);
7280 XDELETEVEC (explicit_link_files
);
7281 XDELETEVEC (decoded_options
);
7282 if (m_option_suggestions
)
7286 FOR_EACH_VEC_ELT (*m_option_suggestions
, i
, str
)
7288 delete m_option_suggestions
;
7292 /* driver::main is implemented as a series of driver:: method calls. */
7295 driver::main (int argc
, char **argv
)
7299 set_progname (argv
[0]);
7300 expand_at_files (&argc
, &argv
);
7301 decode_argv (argc
, const_cast <const char **> (argv
));
7302 global_initializations ();
7303 build_multilib_strings ();
7305 putenv_COLLECT_GCC (argv
[0]);
7306 maybe_putenv_COLLECT_LTO_WRAPPER ();
7307 maybe_putenv_OFFLOAD_TARGETS ();
7308 handle_unrecognized_options ();
7310 if (!maybe_print_and_exit ())
7313 early_exit
= prepare_infiles ();
7315 return get_exit_code ();
7317 do_spec_on_infiles ();
7318 maybe_run_linker (argv
[0]);
7320 return get_exit_code ();
7323 /* Locate the final component of argv[0] after any leading path, and set
7324 the program name accordingly. */
7327 driver::set_progname (const char *argv0
) const
7329 const char *p
= argv0
+ strlen (argv0
);
7330 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
7334 xmalloc_set_program_name (progname
);
7337 /* Expand any @ files within the command-line args,
7338 setting at_file_supplied if any were expanded. */
7341 driver::expand_at_files (int *argc
, char ***argv
) const
7343 char **old_argv
= *argv
;
7345 expandargv (argc
, argv
);
7347 /* Determine if any expansions were made. */
7348 if (*argv
!= old_argv
)
7349 at_file_supplied
= true;
7352 /* Decode the command-line arguments from argc/argv into the
7353 decoded_options array. */
7356 driver::decode_argv (int argc
, const char **argv
)
7358 /* Register the language-independent parameters. */
7359 global_init_params ();
7362 init_opts_obstack ();
7363 init_options_struct (&global_options
, &global_options_set
);
7365 decode_cmdline_options_to_array (argc
, argv
,
7367 &decoded_options
, &decoded_options_count
);
7370 /* Perform various initializations and setup. */
7373 driver::global_initializations ()
7375 /* Unlock the stdio streams. */
7376 unlock_std_streams ();
7378 gcc_init_libintl ();
7380 diagnostic_initialize (global_dc
, 0);
7381 diagnostic_color_init (global_dc
);
7383 #ifdef GCC_DRIVER_HOST_INITIALIZATION
7384 /* Perform host dependent initialization when needed. */
7385 GCC_DRIVER_HOST_INITIALIZATION
;
7388 if (atexit (delete_temp_files
) != 0)
7389 fatal_error (input_location
, "atexit failed");
7391 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
7392 signal (SIGINT
, fatal_signal
);
7394 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
7395 signal (SIGHUP
, fatal_signal
);
7397 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
7398 signal (SIGTERM
, fatal_signal
);
7400 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
7401 signal (SIGPIPE
, fatal_signal
);
7404 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
7405 receive the signal. A different setting is inheritable */
7406 signal (SIGCHLD
, SIG_DFL
);
7409 /* Parsing and gimplification sometimes need quite large stack.
7410 Increase stack size limits if possible. */
7411 stack_limit_increase (64 * 1024 * 1024);
7413 /* Allocate the argument vector. */
7416 obstack_init (&obstack
);
7419 /* Build multilib_select, et. al from the separate lines that make up each
7420 multilib selection. */
7423 driver::build_multilib_strings () const
7427 const char *const *q
= multilib_raw
;
7430 obstack_init (&multilib_obstack
);
7431 while ((p
= *q
++) != (char *) 0)
7432 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7434 obstack_1grow (&multilib_obstack
, 0);
7435 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
7437 q
= multilib_matches_raw
;
7438 while ((p
= *q
++) != (char *) 0)
7439 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7441 obstack_1grow (&multilib_obstack
, 0);
7442 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
7444 q
= multilib_exclusions_raw
;
7445 while ((p
= *q
++) != (char *) 0)
7446 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7448 obstack_1grow (&multilib_obstack
, 0);
7449 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
7451 q
= multilib_reuse_raw
;
7452 while ((p
= *q
++) != (char *) 0)
7453 obstack_grow (&multilib_obstack
, p
, strlen (p
));
7455 obstack_1grow (&multilib_obstack
, 0);
7456 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
7459 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
7462 obstack_1grow (&multilib_obstack
, ' ');
7463 obstack_grow (&multilib_obstack
,
7464 multilib_defaults_raw
[i
],
7465 strlen (multilib_defaults_raw
[i
]));
7469 obstack_1grow (&multilib_obstack
, 0);
7470 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
7474 /* Set up the spec-handling machinery. */
7477 driver::set_up_specs () const
7479 const char *spec_machine_suffix
;
7483 #ifdef INIT_ENVIRONMENT
7484 /* Set up any other necessary machine specific environment variables. */
7485 xputenv (INIT_ENVIRONMENT
);
7488 /* Make a table of what switches there are (switches, n_switches).
7489 Make a table of specified input files (infiles, n_infiles).
7490 Decode switches that are handled locally. */
7492 process_command (decoded_options_count
, decoded_options
);
7494 /* Initialize the vector of specs to just the default.
7495 This means one element containing 0s, as a terminator. */
7497 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
7498 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
7499 n_compilers
= n_default_compilers
;
7501 /* Read specs from a file if there is one. */
7503 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
7504 accel_dir_suffix
, dir_separator_str
, NULL
);
7505 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
7507 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
7508 /* Read the specs file unless it is a default one. */
7509 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
7510 read_specs (specs_file
, true, false);
7514 #ifdef ACCEL_COMPILER
7515 spec_machine_suffix
= machine_suffix
;
7517 spec_machine_suffix
= just_machine_suffix
;
7520 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
7521 for any override of as, ld and libraries. */
7522 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
7523 + strlen (spec_machine_suffix
) + sizeof ("specs"));
7524 strcpy (specs_file
, standard_exec_prefix
);
7525 strcat (specs_file
, spec_machine_suffix
);
7526 strcat (specs_file
, "specs");
7527 if (access (specs_file
, R_OK
) == 0)
7528 read_specs (specs_file
, true, false);
7530 /* Process any configure-time defaults specified for the command line
7531 options, via OPTION_DEFAULT_SPECS. */
7532 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
7533 do_option_spec (option_default_specs
[i
].name
,
7534 option_default_specs
[i
].spec
);
7536 /* Process DRIVER_SELF_SPECS, adding any new options to the end
7537 of the command line. */
7539 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
7540 do_self_spec (driver_self_specs
[i
]);
7542 /* If not cross-compiling, look for executables in the standard
7544 if (*cross_compile
== '0')
7546 if (*md_exec_prefix
)
7548 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
7549 PREFIX_PRIORITY_LAST
, 0, 0);
7553 /* Process sysroot_suffix_spec. */
7554 if (*sysroot_suffix_spec
!= 0
7555 && !no_sysroot_suffix
7556 && do_spec_2 (sysroot_suffix_spec
) == 0)
7558 if (argbuf
.length () > 1)
7559 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
7560 else if (argbuf
.length () == 1)
7561 target_sysroot_suffix
= xstrdup (argbuf
.last ());
7564 #ifdef HAVE_LD_SYSROOT
7565 /* Pass the --sysroot option to the linker, if it supports that. If
7566 there is a sysroot_suffix_spec, it has already been processed by
7567 this point, so target_system_root really is the system root we
7569 if (target_system_root
)
7571 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7572 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
7573 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
7577 /* Process sysroot_hdrs_suffix_spec. */
7578 if (*sysroot_hdrs_suffix_spec
!= 0
7579 && !no_sysroot_suffix
7580 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
7582 if (argbuf
.length () > 1)
7583 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7584 else if (argbuf
.length () == 1)
7585 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
7588 /* Look for startfiles in the standard places. */
7589 if (*startfile_prefix_spec
!= 0
7590 && do_spec_2 (startfile_prefix_spec
) == 0
7591 && do_spec_1 (" ", 0, NULL
) == 0)
7595 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
7596 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
7597 PREFIX_PRIORITY_LAST
, 0, 1);
7599 /* We should eventually get rid of all these and stick to
7600 startfile_prefix_spec exclusively. */
7601 else if (*cross_compile
== '0' || target_system_root
)
7603 if (*md_startfile_prefix
)
7604 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7605 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7607 if (*md_startfile_prefix_1
)
7608 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7609 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7611 /* If standard_startfile_prefix is relative, base it on
7612 standard_exec_prefix. This lets us move the installed tree
7613 as a unit. If GCC_EXEC_PREFIX is defined, base
7614 standard_startfile_prefix on that as well.
7616 If the prefix is relative, only search it for native compilers;
7617 otherwise we will search a directory containing host libraries. */
7618 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7619 add_sysrooted_prefix (&startfile_prefixes
,
7620 standard_startfile_prefix
, "BINUTILS",
7621 PREFIX_PRIORITY_LAST
, 0, 1);
7622 else if (*cross_compile
== '0')
7624 add_prefix (&startfile_prefixes
,
7625 concat (gcc_exec_prefix
7626 ? gcc_exec_prefix
: standard_exec_prefix
,
7628 standard_startfile_prefix
, NULL
),
7629 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7632 /* Sysrooted prefixes are relocated because target_system_root is
7633 also relocated by gcc_exec_prefix. */
7634 if (*standard_startfile_prefix_1
)
7635 add_sysrooted_prefix (&startfile_prefixes
,
7636 standard_startfile_prefix_1
, "BINUTILS",
7637 PREFIX_PRIORITY_LAST
, 0, 1);
7638 if (*standard_startfile_prefix_2
)
7639 add_sysrooted_prefix (&startfile_prefixes
,
7640 standard_startfile_prefix_2
, "BINUTILS",
7641 PREFIX_PRIORITY_LAST
, 0, 1);
7644 /* Process any user specified specs in the order given on the command
7646 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7648 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7650 read_specs (filename
? filename
: uptr
->filename
, false, true);
7653 /* Process any user self specs. */
7655 struct spec_list
*sl
;
7656 for (sl
= specs
; sl
; sl
= sl
->next
)
7657 if (sl
->name_len
== sizeof "self_spec" - 1
7658 && !strcmp (sl
->name
, "self_spec"))
7659 do_self_spec (*sl
->ptr_spec
);
7664 enum save_temps save
;
7666 if (!compare_debug_second
)
7668 n_switches_debug_check
[1] = n_switches
;
7669 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7670 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
7673 do_self_spec ("%:compare-debug-self-opt()");
7674 n_switches_debug_check
[0] = n_switches
;
7675 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
7676 switches_debug_check
[0] = switches
;
7678 n_switches
= n_switches_debug_check
[1];
7679 n_switches_alloc
= n_switches_alloc_debug_check
[1];
7680 switches
= switches_debug_check
[1];
7683 /* Avoid crash when computing %j in this early. */
7684 save
= save_temps_flag
;
7685 save_temps_flag
= SAVE_TEMPS_NONE
;
7687 compare_debug
= -compare_debug
;
7688 do_self_spec ("%:compare-debug-self-opt()");
7690 save_temps_flag
= save
;
7692 if (!compare_debug_second
)
7694 n_switches_debug_check
[1] = n_switches
;
7695 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
7696 switches_debug_check
[1] = switches
;
7697 compare_debug
= -compare_debug
;
7698 n_switches
= n_switches_debug_check
[0];
7699 n_switches_alloc
= n_switches_debug_check
[0];
7700 switches
= switches_debug_check
[0];
7705 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7706 if (gcc_exec_prefix
)
7707 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
7708 dir_separator_str
, spec_version
,
7709 accel_dir_suffix
, dir_separator_str
, NULL
);
7711 /* Now we have the specs.
7712 Set the `valid' bits for switches that match anything in any spec. */
7714 validate_all_switches ();
7716 /* Now that we have the switches and the specs, set
7717 the subdirectory based on the options. */
7718 set_multilib_dir ();
7721 /* Set up to remember the pathname of gcc and any options
7722 needed for collect. We use argv[0] instead of progname because
7723 we need the complete pathname. */
7726 driver::putenv_COLLECT_GCC (const char *argv0
) const
7728 obstack_init (&collect_obstack
);
7729 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7730 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
7731 xputenv (XOBFINISH (&collect_obstack
, char *));
7734 /* Set up to remember the pathname of the lto wrapper. */
7737 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
7739 char *lto_wrapper_file
;
7742 lto_wrapper_file
= NULL
;
7744 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
7746 if (lto_wrapper_file
)
7748 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
7749 lto_wrapper_spec
= lto_wrapper_file
;
7750 obstack_init (&collect_obstack
);
7751 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7752 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7753 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7754 strlen (lto_wrapper_spec
) + 1);
7755 xputenv (XOBFINISH (&collect_obstack
, char *));
7760 /* Set up to remember the names of offload targets. */
7763 driver::maybe_putenv_OFFLOAD_TARGETS () const
7765 if (offload_targets
&& offload_targets
[0] != '\0')
7767 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
7768 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
7769 obstack_grow (&collect_obstack
, offload_targets
,
7770 strlen (offload_targets
) + 1);
7771 xputenv (XOBFINISH (&collect_obstack
, char *));
7774 free (offload_targets
);
7775 offload_targets
= NULL
;
7778 /* Helper function for driver::suggest_option. Populate
7779 m_option_suggestions with candidate strings for misspelled options.
7780 The strings will be freed by the driver's dtor. */
7783 driver::build_option_suggestions (void)
7785 gcc_assert (m_option_suggestions
== NULL
);
7786 m_option_suggestions
= new auto_vec
<char *> ();
7788 /* We build a vec of m_option_suggestions, using add_misspelling_candidates
7789 to add copies of strings, without a leading dash. */
7791 for (unsigned int i
= 0; i
< cl_options_count
; i
++)
7793 const struct cl_option
*option
= &cl_options
[i
];
7794 const char *opt_text
= option
->opt_text
;
7798 if (option
->var_type
== CLVC_ENUM
)
7800 const struct cl_enum
*e
= &cl_enums
[option
->var_enum
];
7801 for (unsigned j
= 0; e
->values
[j
].arg
!= NULL
; j
++)
7803 char *with_arg
= concat (opt_text
, e
->values
[j
].arg
, NULL
);
7804 add_misspelling_candidates (m_option_suggestions
, option
,
7810 add_misspelling_candidates (m_option_suggestions
, option
,
7814 case OPT_fsanitize_
:
7815 case OPT_fsanitize_recover_
:
7816 /* -fsanitize= and -fsanitize-recover= can take
7817 a comma-separated list of arguments. Given that combinations
7818 are supported, we can't add all potential candidates to the
7819 vec, but if we at least add them individually without commas,
7820 we should do a better job e.g. correcting
7823 "-fsanitize=address"
7824 rather than to "-Wframe-address" (PR driver/69265). */
7826 for (int j
= 0; sanitizer_opts
[j
].name
!= NULL
; ++j
)
7828 struct cl_option optb
;
7829 /* -fsanitize=all is not valid, only -fno-sanitize=all.
7830 So don't register the positive misspelling candidates
7832 if (sanitizer_opts
[j
].flag
== ~0U && i
== OPT_fsanitize_
)
7835 optb
.opt_text
= opt_text
= "-fno-sanitize=";
7836 optb
.cl_reject_negative
= true;
7839 /* Get one arg at a time e.g. "-fsanitize=address". */
7840 char *with_arg
= concat (opt_text
,
7841 sanitizer_opts
[j
].name
,
7843 /* Add with_arg and all of its variant spellings e.g.
7844 "-fno-sanitize=address" to candidates (albeit without
7846 add_misspelling_candidates (m_option_suggestions
, option
,
7856 /* Helper function for driver::handle_unrecognized_options.
7858 Given an unrecognized option BAD_OPT (without the leading dash),
7859 locate the closest reasonable matching option (again, without the
7860 leading dash), or NULL.
7862 The returned string is owned by the driver instance. */
7865 driver::suggest_option (const char *bad_opt
)
7867 /* Lazily populate m_option_suggestions. */
7868 if (!m_option_suggestions
)
7869 build_option_suggestions ();
7870 gcc_assert (m_option_suggestions
);
7872 /* "m_option_suggestions" is now populated. Use it. */
7873 return find_closest_string
7875 (auto_vec
<const char *> *) m_option_suggestions
);
7878 /* Reject switches that no pass was interested in. */
7881 driver::handle_unrecognized_options ()
7883 for (size_t i
= 0; (int) i
< n_switches
; i
++)
7884 if (! switches
[i
].validated
)
7886 const char *hint
= suggest_option (switches
[i
].part1
);
7888 error ("unrecognized command line option %<-%s%>;"
7889 " did you mean %<-%s%>?",
7890 switches
[i
].part1
, hint
);
7892 error ("unrecognized command line option %<-%s%>",
7897 /* Handle the various -print-* options, returning 0 if the driver
7898 should exit, or nonzero if the driver should continue. */
7901 driver::maybe_print_and_exit () const
7903 if (print_search_dirs
)
7905 printf (_("install: %s%s\n"),
7906 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7907 gcc_exec_prefix
? "" : machine_suffix
);
7908 printf (_("programs: %s\n"),
7909 build_search_list (&exec_prefixes
, "", false, false));
7910 printf (_("libraries: %s\n"),
7911 build_search_list (&startfile_prefixes
, "", false, true));
7915 if (print_file_name
)
7917 printf ("%s\n", find_file (print_file_name
));
7921 if (print_prog_name
)
7923 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
7925 /* Append USE_LD to the default linker. */
7926 #ifdef DEFAULT_LINKER
7928 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
7929 int len
= (sizeof (DEFAULT_LINKER
)
7930 - sizeof (HOST_EXECUTABLE_SUFFIX
));
7934 char *default_linker
= xstrdup (DEFAULT_LINKER
);
7935 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
7936 HOST_EXECUTABLE_SUFFIX. */
7937 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
7939 default_linker
[len
] = '\0';
7940 ld
= concat (default_linker
, use_ld
,
7941 HOST_EXECUTABLE_SUFFIX
, NULL
);
7946 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
7947 if (access (ld
, X_OK
) == 0)
7949 printf ("%s\n", ld
);
7953 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
7955 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7956 printf ("%s\n", (newname
? newname
: print_prog_name
));
7960 if (print_multi_lib
)
7962 print_multilib_info ();
7966 if (print_multi_directory
)
7968 if (multilib_dir
== NULL
)
7971 printf ("%s\n", multilib_dir
);
7975 if (print_multiarch
)
7977 if (multiarch_dir
== NULL
)
7980 printf ("%s\n", multiarch_dir
);
7986 if (target_system_root
)
7988 if (target_sysroot_suffix
)
7989 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7991 printf ("%s\n", target_system_root
);
7996 if (print_multi_os_directory
)
7998 if (multilib_os_dir
== NULL
)
8001 printf ("%s\n", multilib_os_dir
);
8005 if (print_sysroot_headers_suffix
)
8007 if (*sysroot_hdrs_suffix_spec
)
8009 printf("%s\n", (target_sysroot_hdrs_suffix
8010 ? target_sysroot_hdrs_suffix
8015 /* The error status indicates that only one set of fixed
8016 headers should be built. */
8017 fatal_error (input_location
,
8018 "not configured with sysroot headers suffix");
8021 if (print_help_list
)
8027 printf (_("\nFor bug reporting instructions, please see:\n"));
8028 printf ("%s.\n", bug_report_url
);
8033 /* We do not exit here. Instead we have created a fake input file
8034 called 'help-dummy' which needs to be compiled, and we pass this
8035 on the various sub-processes, along with the --help switch.
8036 Ensure their output appears after ours. */
8037 fputc ('\n', stdout
);
8043 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
8045 printf ("Copyright %s 2017 Free Software Foundation, Inc.\n",
8047 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
8048 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
8053 /* We do not exit here. We use the same mechanism of --help to print
8054 the version of the sub-processes. */
8055 fputc ('\n', stdout
);
8061 print_configuration (stderr
);
8069 /* Figure out what to do with each input file.
8070 Return true if we need to exit early from "main", false otherwise. */
8073 driver::prepare_infiles ()
8076 int lang_n_infiles
= 0;
8078 if (n_infiles
== added_libraries
)
8079 fatal_error (input_location
, "no input files");
8082 /* Early exit needed from main. */
8085 /* Make a place to record the compiler output file names
8086 that correspond to the input files. */
8089 i
+= lang_specific_extra_outfiles
;
8090 outfiles
= XCNEWVEC (const char *, i
);
8092 /* Record which files were specified explicitly as link input. */
8094 explicit_link_files
= XCNEWVEC (char, n_infiles
);
8096 combine_inputs
= have_o
|| flag_wpa
;
8098 for (i
= 0; (int) i
< n_infiles
; i
++)
8100 const char *name
= infiles
[i
].name
;
8101 struct compiler
*compiler
= lookup_compiler (name
,
8103 infiles
[i
].language
);
8105 if (compiler
&& !(compiler
->combinable
))
8106 combine_inputs
= false;
8108 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
8109 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
8110 infiles
[i
].incompiler
= compiler
;
8114 input_file_compiler
= compiler
;
8115 infiles
[i
].incompiler
= compiler
;
8119 /* Since there is no compiler for this input file, assume it is a
8121 explicit_link_files
[i
] = 1;
8122 infiles
[i
].incompiler
= NULL
;
8124 infiles
[i
].compiled
= false;
8125 infiles
[i
].preprocessed
= false;
8128 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
8129 fatal_error (input_location
,
8130 "cannot specify -o with -c, -S or -E with multiple files");
8132 /* No early exit needed from main; we can continue. */
8136 /* Run the spec machinery on each input file. */
8139 driver::do_spec_on_infiles () const
8143 for (i
= 0; (int) i
< n_infiles
; i
++)
8145 int this_file_error
= 0;
8147 /* Tell do_spec what to substitute for %i. */
8149 input_file_number
= i
;
8150 set_input (infiles
[i
].name
);
8152 if (infiles
[i
].compiled
)
8155 /* Use the same thing in %o, unless cp->spec says otherwise. */
8157 outfiles
[i
] = gcc_input_filename
;
8159 /* Figure out which compiler from the file's suffix. */
8162 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
8163 infiles
[i
].language
);
8165 if (input_file_compiler
)
8167 /* Ok, we found an applicable compiler. Run its spec. */
8169 if (input_file_compiler
->spec
[0] == '#')
8171 error ("%s: %s compiler not installed on this system",
8172 gcc_input_filename
, &input_file_compiler
->spec
[1]);
8173 this_file_error
= 1;
8181 free (debug_check_temp_file
[0]);
8182 debug_check_temp_file
[0] = NULL
;
8184 free (debug_check_temp_file
[1]);
8185 debug_check_temp_file
[1] = NULL
;
8188 value
= do_spec (input_file_compiler
->spec
);
8189 infiles
[i
].compiled
= true;
8191 this_file_error
= 1;
8192 else if (compare_debug
&& debug_check_temp_file
[0])
8195 inform (UNKNOWN_LOCATION
,
8196 "recompiling with -fcompare-debug");
8198 compare_debug
= -compare_debug
;
8199 n_switches
= n_switches_debug_check
[1];
8200 n_switches_alloc
= n_switches_alloc_debug_check
[1];
8201 switches
= switches_debug_check
[1];
8203 value
= do_spec (input_file_compiler
->spec
);
8205 compare_debug
= -compare_debug
;
8206 n_switches
= n_switches_debug_check
[0];
8207 n_switches_alloc
= n_switches_alloc_debug_check
[0];
8208 switches
= switches_debug_check
[0];
8212 error ("during -fcompare-debug recompilation");
8213 this_file_error
= 1;
8216 gcc_assert (debug_check_temp_file
[1]
8217 && filename_cmp (debug_check_temp_file
[0],
8218 debug_check_temp_file
[1]));
8221 inform (UNKNOWN_LOCATION
, "comparing final insns dumps");
8223 if (compare_files (debug_check_temp_file
))
8224 this_file_error
= 1;
8229 free (debug_check_temp_file
[0]);
8230 debug_check_temp_file
[0] = NULL
;
8232 free (debug_check_temp_file
[1]);
8233 debug_check_temp_file
[1] = NULL
;
8238 /* If this file's name does not contain a recognized suffix,
8239 record it as explicit linker input. */
8242 explicit_link_files
[i
] = 1;
8244 /* Clear the delete-on-failure queue, deleting the files in it
8245 if this compilation failed. */
8247 if (this_file_error
)
8249 delete_failure_queue ();
8252 /* If this compilation succeeded, don't delete those files later. */
8253 clear_failure_queue ();
8256 /* Reset the input file name to the first compile/object file name, for use
8257 with %b in LINK_SPEC. We use the first input file that we can find
8258 a compiler to compile it instead of using infiles.language since for
8259 languages other than C we use aliases that we then lookup later. */
8264 for (i
= 0; i
< n_infiles
; i
++)
8265 if (infiles
[i
].incompiler
8266 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
8268 set_input (infiles
[i
].name
);
8275 /* Make sure INPUT_FILE_NUMBER points to first available open
8277 input_file_number
= n_infiles
;
8278 if (lang_specific_pre_link ())
8283 /* If we have to run the linker, do it now. */
8286 driver::maybe_run_linker (const char *argv0
) const
8289 int linker_was_run
= 0;
8290 int num_linker_inputs
;
8292 /* Determine if there are any linker input files. */
8293 num_linker_inputs
= 0;
8294 for (i
= 0; (int) i
< n_infiles
; i
++)
8295 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
8296 num_linker_inputs
++;
8298 /* Run ld to link all the compiler output files. */
8300 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
8302 int tmp
= execution_count
;
8306 #if HAVE_LTO_PLUGIN > 0
8307 #if HAVE_LTO_PLUGIN == 2
8308 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
8310 const char *fuse_linker_plugin
= "fuse-linker-plugin";
8314 /* We'll use ld if we can't find collect2. */
8315 if (! strcmp (linker_name_spec
, "collect2"))
8317 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
8319 linker_name_spec
= "ld";
8322 #if HAVE_LTO_PLUGIN > 0
8323 #if HAVE_LTO_PLUGIN == 2
8324 if (!switch_matches (fno_use_linker_plugin
,
8325 fno_use_linker_plugin
8326 + strlen (fno_use_linker_plugin
), 0))
8328 if (switch_matches (fuse_linker_plugin
,
8330 + strlen (fuse_linker_plugin
), 0))
8333 char *temp_spec
= find_a_file (&exec_prefixes
,
8334 LTOPLUGINSONAME
, R_OK
,
8337 fatal_error (input_location
,
8338 "-fuse-linker-plugin, but %s not found",
8340 linker_plugin_file_spec
= convert_white_space (temp_spec
);
8343 lto_gcc_spec
= argv0
;
8346 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
8348 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
8349 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
8351 if (print_subprocess_help
== 1)
8353 printf (_("\nLinker options\n==============\n\n"));
8354 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
8355 " to the linker.\n\n"));
8358 int value
= do_spec (link_command_spec
);
8361 linker_was_run
= (tmp
!= execution_count
);
8364 /* If options said don't run linker,
8365 complain about input files to be given to the linker. */
8367 if (! linker_was_run
&& !seen_error ())
8368 for (i
= 0; (int) i
< n_infiles
; i
++)
8369 if (explicit_link_files
[i
]
8370 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
8371 warning (0, "%s: linker input file unused because linking not done",
8375 /* The end of "main". */
8378 driver::final_actions () const
8380 /* Delete some or all of the temporary files we made. */
8383 delete_failure_queue ();
8384 delete_temp_files ();
8386 if (print_help_list
)
8388 printf (("\nFor bug reporting instructions, please see:\n"));
8389 printf ("%s\n", bug_report_url
);
8393 /* Determine what the exit code of the driver should be. */
8396 driver::get_exit_code () const
8398 return (signal_count
!= 0 ? 2
8399 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
8403 /* Find the proper compilation spec for the file name NAME,
8404 whose length is LENGTH. LANGUAGE is the specified language,
8405 or 0 if this file is to be passed to the linker. */
8407 static struct compiler
*
8408 lookup_compiler (const char *name
, size_t length
, const char *language
)
8410 struct compiler
*cp
;
8412 /* If this was specified by the user to be a linker input, indicate that. */
8413 if (language
!= 0 && language
[0] == '*')
8416 /* Otherwise, look for the language, if one is spec'd. */
8419 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8420 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
8422 if (name
!= NULL
&& strcmp (name
, "-") == 0
8423 && (strcmp (cp
->suffix
, "@c-header") == 0
8424 || strcmp (cp
->suffix
, "@c++-header") == 0)
8426 fatal_error (input_location
,
8427 "cannot use %<-%> as input filename for a "
8428 "precompiled header");
8433 error ("language %s not recognized", language
);
8437 /* Look for a suffix. */
8438 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8440 if (/* The suffix `-' matches only the file name `-'. */
8441 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8442 || (strlen (cp
->suffix
) < length
8443 /* See if the suffix matches the end of NAME. */
8444 && !strcmp (cp
->suffix
,
8445 name
+ length
- strlen (cp
->suffix
))
8450 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
8451 /* Look again, but case-insensitively this time. */
8453 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
8455 if (/* The suffix `-' matches only the file name `-'. */
8456 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
8457 || (strlen (cp
->suffix
) < length
8458 /* See if the suffix matches the end of NAME. */
8459 && ((!strcmp (cp
->suffix
,
8460 name
+ length
- strlen (cp
->suffix
))
8461 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
8462 && !strcasecmp (cp
->suffix
,
8463 name
+ length
- strlen (cp
->suffix
)))
8469 if (cp
>= compilers
)
8471 if (cp
->spec
[0] != '@')
8472 /* A non-alias entry: return it. */
8475 /* An alias entry maps a suffix to a language.
8476 Search for the language; pass 0 for NAME and LENGTH
8477 to avoid infinite recursion if language not found. */
8478 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
8484 save_string (const char *s
, int len
)
8486 char *result
= XNEWVEC (char, len
+ 1);
8488 gcc_checking_assert (strlen (s
) >= (unsigned int) len
);
8489 memcpy (result
, s
, len
);
8495 pfatal_with_name (const char *name
)
8497 perror_with_name (name
);
8498 delete_temp_files ();
8503 perror_with_name (const char *name
)
8505 error ("%s: %m", name
);
8509 validate_switches_from_spec (const char *spec
, bool user
)
8511 const char *p
= spec
;
8514 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
8515 /* We have a switch spec. */
8516 p
= validate_switches (p
+ 1, user
);
8520 validate_all_switches (void)
8522 struct compiler
*comp
;
8523 struct spec_list
*spec
;
8525 for (comp
= compilers
; comp
->spec
; comp
++)
8526 validate_switches_from_spec (comp
->spec
, false);
8528 /* Look through the linked list of specs read from the specs file. */
8529 for (spec
= specs
; spec
; spec
= spec
->next
)
8530 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
8532 validate_switches_from_spec (link_command_spec
, false);
8535 /* Look at the switch-name that comes after START
8536 and mark as valid all supplied switches that match it. */
8539 validate_switches (const char *start
, bool user_spec
)
8541 const char *p
= start
;
8545 bool suffix
= false;
8546 bool starred
= false;
8548 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
8557 if (*p
== '.' || *p
== ',')
8561 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
8562 || *p
== ',' || *p
== '.' || *p
== '@')
8567 starred
= true, p
++;
8573 /* Mark all matching switches as valid. */
8574 for (i
= 0; i
< n_switches
; i
++)
8575 if (!strncmp (switches
[i
].part1
, atom
, len
)
8576 && (starred
|| switches
[i
].part1
[len
] == '\0')
8577 && (switches
[i
].known
|| user_spec
))
8578 switches
[i
].validated
= true;
8582 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
8585 if (*p
&& p
[-1] == ':')
8587 while (*p
&& *p
!= ';' && *p
!= '}')
8592 if (*p
== '{' || *p
== '<')
8593 p
= validate_switches (p
+1, user_spec
);
8594 else if (p
[0] == 'W' && p
[1] == '{')
8595 p
= validate_switches (p
+2, user_spec
);
8602 if (*p
&& p
[-1] == ';')
8616 static struct mdswitchstr
*mdswitches
;
8617 static int n_mdswitches
;
8619 /* Check whether a particular argument was used. The first time we
8620 canonicalize the switches to keep only the ones we care about. */
8625 int operator () (const char *p
, int len
);
8632 const char *replace
;
8637 mswitchstr
*mswitches
;
8642 used_arg_t used_arg
;
8645 used_arg_t::operator () (const char *p
, int len
)
8651 struct mswitchstr
*matches
;
8655 /* Break multilib_matches into the component strings of string
8656 and replacement string. */
8657 for (q
= multilib_matches
; *q
!= '\0'; q
++)
8662 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
8664 q
= multilib_matches
;
8673 fatal_error (input_location
, "multilib spec %qs is invalid",
8678 matches
[i
].len
= q
- matches
[i
].str
;
8680 matches
[i
].replace
= ++q
;
8681 while (*q
!= ';' && *q
!= '\0')
8684 goto invalid_matches
;
8687 matches
[i
].rep_len
= q
- matches
[i
].replace
;
8693 /* Now build a list of the replacement string for switches that we care
8694 about. Make sure we allocate at least one entry. This prevents
8695 xmalloc from calling fatal, and prevents us from re-executing this
8698 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
8699 for (i
= 0; i
< n_switches
; i
++)
8700 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
8702 int xlen
= strlen (switches
[i
].part1
);
8703 for (j
= 0; j
< cnt
; j
++)
8704 if (xlen
== matches
[j
].len
8705 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
8707 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
8708 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
8709 mswitches
[n_mswitches
].replace
= (char *) 0;
8710 mswitches
[n_mswitches
].rep_len
= 0;
8716 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
8717 on the command line nor any options mutually incompatible with
8719 for (i
= 0; i
< n_mdswitches
; i
++)
8723 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
8729 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
8730 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
8732 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8739 if (*q
!= ' ' && *q
!= '\0')
8741 while (*r
!= ' ' && *r
!= '\0')
8744 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8747 if (used_arg (r
, q
- r
))
8752 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
8753 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
8754 mswitches
[n_mswitches
].replace
= (char *) 0;
8755 mswitches
[n_mswitches
].rep_len
= 0;
8768 for (i
= 0; i
< n_mswitches
; i
++)
8769 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8775 void used_arg_t::finalize ()
8777 XDELETEVEC (mswitches
);
8784 default_arg (const char *p
, int len
)
8788 for (i
= 0; i
< n_mdswitches
; i
++)
8789 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8795 /* Work out the subdirectory to use based on the options. The format of
8796 multilib_select is a list of elements. Each element is a subdirectory
8797 name followed by a list of options followed by a semicolon. The format
8798 of multilib_exclusions is the same, but without the preceding
8799 directory. First gcc will check the exclusions, if none of the options
8800 beginning with an exclamation point are present, and all of the other
8801 options are present, then we will ignore this completely. Passing
8802 that, gcc will consider each multilib_select in turn using the same
8803 rules for matching the options. If a match is found, that subdirectory
8805 A subdirectory name is optionally followed by a colon and the corresponding
8809 set_multilib_dir (void)
8812 unsigned int this_path_len
;
8813 const char *this_path
, *this_arg
;
8814 const char *start
, *end
;
8816 int ok
, ndfltok
, first
;
8819 start
= multilib_defaults
;
8820 while (*start
== ' ' || *start
== '\t')
8822 while (*start
!= '\0')
8825 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8827 while (*start
== ' ' || *start
== '\t')
8835 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8836 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8838 while (*start
== ' ' || *start
== '\t')
8844 for (end
= start
+ 1;
8845 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8848 obstack_grow (&multilib_obstack
, start
, end
- start
);
8849 obstack_1grow (&multilib_obstack
, 0);
8850 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8851 mdswitches
[i
++].len
= end
- start
;
8858 p
= multilib_exclusions
;
8861 /* Ignore newlines. */
8868 /* Check the arguments. */
8875 fatal_error (input_location
, "multilib exclusions %qs is invalid",
8876 multilib_exclusions
);
8886 while (*p
!= ' ' && *p
!= ';')
8889 goto invalid_exclusions
;
8893 if (*this_arg
!= '!')
8901 ok
= used_arg (this_arg
, p
- this_arg
);
8916 p
= multilib_select
;
8918 /* Append multilib reuse rules if any. With those rules, we can reuse
8919 one multilib for certain different options sets. */
8920 if (strlen (multilib_reuse
) > 0)
8921 p
= concat (p
, multilib_reuse
, NULL
);
8925 /* Ignore newlines. */
8932 /* Get the initial path. */
8939 fatal_error (input_location
, "multilib select %qs %qs is invalid",
8940 multilib_select
, multilib_reuse
);
8944 this_path_len
= p
- this_path
;
8946 /* Check the arguments. */
8953 goto invalid_select
;
8962 while (*p
!= ' ' && *p
!= ';')
8965 goto invalid_select
;
8969 if (*this_arg
!= '!')
8977 /* If this is a default argument, we can just ignore it.
8978 This is true even if this_arg begins with '!'. Beginning
8979 with '!' does not mean that this argument is necessarily
8980 inappropriate for this library: it merely means that
8981 there is a more specific library which uses this
8982 argument. If this argument is a default, we need not
8983 consider that more specific library. */
8984 ok
= used_arg (this_arg
, p
- this_arg
);
8991 if (default_arg (this_arg
, p
- this_arg
))
9000 if (this_path_len
!= 1
9001 || this_path
[0] != '.')
9003 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
9006 strncpy (new_multilib_dir
, this_path
, this_path_len
);
9007 new_multilib_dir
[this_path_len
] = '\0';
9008 q
= strchr (new_multilib_dir
, ':');
9011 multilib_dir
= new_multilib_dir
;
9018 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
9020 while (q
< end
&& *q
!= ':')
9024 const char *q2
= q
+ 1, *ml_end
= end
;
9025 char *new_multilib_os_dir
;
9027 while (q2
< end
&& *q2
!= ':')
9031 if (ml_end
- q
== 1)
9032 multilib_os_dir
= xstrdup (".");
9035 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
9036 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
9037 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
9038 multilib_os_dir
= new_multilib_os_dir
;
9041 if (q2
< end
&& *q2
== ':')
9043 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
9044 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
9045 new_multiarch_dir
[end
- q2
- 1] = '\0';
9046 multiarch_dir
= new_multiarch_dir
;
9055 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
9056 && strcmp (multilib_os_dir
, ".") == 0)
9058 free (CONST_CAST (char *, multilib_os_dir
));
9059 multilib_os_dir
= NULL
;
9061 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
9062 multilib_os_dir
= multilib_dir
;
9065 /* Print out the multiple library subdirectory selection
9066 information. This prints out a series of lines. Each line looks
9067 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
9068 required. Only the desired options are printed out, the negative
9069 matches. The options are print without a leading dash. There are
9070 no spaces to make it easy to use the information in the shell.
9071 Each subdirectory is printed only once. This assumes the ordering
9072 generated by the genmultilib script. Also, we leave out ones that match
9076 print_multilib_info (void)
9078 const char *p
= multilib_select
;
9079 const char *last_path
= 0, *this_path
;
9081 unsigned int last_path_len
= 0;
9086 /* Ignore newlines. */
9093 /* Get the initial path. */
9100 fatal_error (input_location
,
9101 "multilib select %qs is invalid", multilib_select
);
9107 /* When --disable-multilib was used but target defines
9108 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
9109 with .:: for multiarch configurations) are there just to find
9110 multilib_os_dir, so skip them from output. */
9111 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
9114 /* Check for matches with the multilib_exclusions. We don't bother
9115 with the '!' in either list. If any of the exclusion rules match
9116 all of its options with the select rule, we skip it. */
9118 const char *e
= multilib_exclusions
;
9119 const char *this_arg
;
9124 /* Ignore newlines. */
9131 /* Check the arguments. */
9140 fatal_error (input_location
,
9141 "multilib exclusion %qs is invalid",
9142 multilib_exclusions
);
9153 while (*e
!= ' ' && *e
!= ';')
9156 goto invalid_exclusion
;
9164 int len
= e
- this_arg
;
9167 goto invalid_select
;
9171 while (*q
!= ' ' && *q
!= ';')
9174 goto invalid_select
;
9178 if (! strncmp (arg
, this_arg
,
9179 (len
< q
- arg
) ? q
- arg
: len
)
9180 || default_arg (this_arg
, e
- this_arg
))
9210 /* If this is a duplicate, skip it. */
9211 skip
= (last_path
!= 0
9212 && (unsigned int) (p
- this_path
) == last_path_len
9213 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
9215 last_path
= this_path
;
9216 last_path_len
= p
- this_path
;
9219 /* If this directory requires any default arguments, we can skip
9220 it. We will already have printed a directory identical to
9221 this one which does not require that default argument. */
9232 goto invalid_select
;
9239 while (*q
!= ' ' && *q
!= ';')
9242 goto invalid_select
;
9247 && default_arg (arg
, q
- arg
))
9262 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
9273 goto invalid_select
;
9281 use_arg
= *p
!= '!';
9286 while (*p
!= ' ' && *p
!= ';')
9289 goto invalid_select
;
9301 /* If there are extra options, print them now. */
9302 if (multilib_extra
&& *multilib_extra
)
9304 int print_at
= TRUE
;
9307 for (q
= multilib_extra
; *q
!= '\0'; q
++)
9328 /* getenv built-in spec function.
9330 Returns the value of the environment variable given by its first argument,
9331 concatenated with the second argument. If the variable is not defined, a
9332 fatal error is issued unless such undefs are internally allowed, in which
9333 case the variable name is used as the variable value. */
9336 getenv_spec_function (int argc
, const char **argv
)
9339 const char *varname
;
9349 value
= env
.get (varname
);
9351 if (!value
&& spec_undefvar_allowed
)
9355 fatal_error (input_location
,
9356 "environment variable %qs not defined", varname
);
9358 /* We have to escape every character of the environment variable so
9359 they are not interpreted as active spec characters. A
9360 particularly painful case is when we are reading a variable
9361 holding a windows path complete with \ separators. */
9362 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
9363 result
= XNEWVAR (char, len
);
9364 for (ptr
= result
; *value
; ptr
+= 2)
9370 strcpy (ptr
, argv
[1]);
9375 /* if-exists built-in spec function.
9377 Checks to see if the file specified by the absolute pathname in
9378 ARGS exists. Returns that pathname if found.
9380 The usual use for this function is to check for a library file
9381 (whose name has been expanded with %s). */
9384 if_exists_spec_function (int argc
, const char **argv
)
9386 /* Must have only one argument. */
9387 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9393 /* if-exists-else built-in spec function.
9395 This is like if-exists, but takes an additional argument which
9396 is returned if the first argument does not exist. */
9399 if_exists_else_spec_function (int argc
, const char **argv
)
9401 /* Must have exactly two arguments. */
9405 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
9411 /* sanitize built-in spec function.
9413 This returns non-NULL, if sanitizing address, thread or
9414 any of the undefined behavior sanitizers. */
9417 sanitize_spec_function (int argc
, const char **argv
)
9422 if (strcmp (argv
[0], "address") == 0)
9423 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
9424 if (strcmp (argv
[0], "kernel-address") == 0)
9425 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
9426 if (strcmp (argv
[0], "thread") == 0)
9427 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
9428 if (strcmp (argv
[0], "undefined") == 0)
9429 return ((flag_sanitize
9430 & (SANITIZE_UNDEFINED
| SANITIZE_UNDEFINED_NONDEFAULT
))
9431 && !flag_sanitize_undefined_trap_on_error
) ? "" : NULL
;
9432 if (strcmp (argv
[0], "leak") == 0)
9433 return ((flag_sanitize
9434 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
9435 == SANITIZE_LEAK
) ? "" : NULL
;
9439 /* replace-outfile built-in spec function.
9441 This looks for the first argument in the outfiles array's name and
9442 replaces it with the second argument. */
9445 replace_outfile_spec_function (int argc
, const char **argv
)
9448 /* Must have exactly two arguments. */
9452 for (i
= 0; i
< n_infiles
; i
++)
9454 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9455 outfiles
[i
] = xstrdup (argv
[1]);
9460 /* remove-outfile built-in spec function.
9462 * This looks for the first argument in the outfiles array's name and
9466 remove_outfile_spec_function (int argc
, const char **argv
)
9469 /* Must have exactly one argument. */
9473 for (i
= 0; i
< n_infiles
; i
++)
9475 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
9481 /* Given two version numbers, compares the two numbers.
9482 A version number must match the regular expression
9483 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
9486 compare_version_strings (const char *v1
, const char *v2
)
9491 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
9492 REG_EXTENDED
| REG_NOSUB
) != 0)
9494 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
9495 if (rresult
== REG_NOMATCH
)
9496 fatal_error (input_location
, "invalid version number %qs", v1
);
9497 else if (rresult
!= 0)
9499 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
9500 if (rresult
== REG_NOMATCH
)
9501 fatal_error (input_location
, "invalid version number %qs", v2
);
9502 else if (rresult
!= 0)
9505 return strverscmp (v1
, v2
);
9509 /* version_compare built-in spec function.
9511 This takes an argument of the following form:
9513 <comparison-op> <arg1> [<arg2>] <switch> <result>
9515 and produces "result" if the comparison evaluates to true,
9516 and nothing if it doesn't.
9518 The supported <comparison-op> values are:
9520 >= true if switch is a later (or same) version than arg1
9522 < true if switch is an earlier version than arg1
9524 >< true if switch is arg1 or later, and earlier than arg2
9525 <> true if switch is earlier than arg1 or is arg2 or later
9527 If the switch is not present, the condition is false unless
9528 the first character of the <comparison-op> is '!'.
9531 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
9532 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
9535 version_compare_spec_function (int argc
, const char **argv
)
9539 const char *switch_value
= NULL
;
9544 fatal_error (input_location
, "too few arguments to %%:version-compare");
9545 if (argv
[0][0] == '\0')
9547 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
9549 if (argc
!= nargs
+ 3)
9550 fatal_error (input_location
, "too many arguments to %%:version-compare");
9552 switch_len
= strlen (argv
[nargs
+ 1]);
9553 for (i
= 0; i
< n_switches
; i
++)
9554 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
9555 && check_live_switch (i
, switch_len
))
9556 switch_value
= switches
[i
].part1
+ switch_len
;
9558 if (switch_value
== NULL
)
9562 comp1
= compare_version_strings (switch_value
, argv
[1]);
9564 comp2
= compare_version_strings (switch_value
, argv
[2]);
9566 comp2
= -1; /* This value unused. */
9569 switch (argv
[0][0] << 8 | argv
[0][1])
9571 case '>' << 8 | '=':
9572 result
= comp1
>= 0;
9574 case '!' << 8 | '<':
9575 result
= comp1
>= 0 || switch_value
== NULL
;
9580 case '!' << 8 | '>':
9581 result
= comp1
< 0 || switch_value
== NULL
;
9583 case '>' << 8 | '<':
9584 result
= comp1
>= 0 && comp2
< 0;
9586 case '<' << 8 | '>':
9587 result
= comp1
< 0 || comp2
>= 0;
9591 fatal_error (input_location
,
9592 "unknown operator %qs in %%:version-compare", argv
[0]);
9597 return argv
[nargs
+ 2];
9600 /* %:include builtin spec function. This differs from %include in that it
9601 can be nested inside a spec, and thus be conditionalized. It takes
9602 one argument, the filename, and looks for it in the startfile path.
9603 The result is always NULL, i.e. an empty expansion. */
9606 include_spec_function (int argc
, const char **argv
)
9613 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
9614 read_specs (file
? file
: argv
[0], false, false);
9619 /* %:find-file spec function. This function replaces its argument by
9620 the file found through find_file, that is the -print-file-name gcc
9623 find_file_spec_function (int argc
, const char **argv
)
9630 file
= find_file (argv
[0]);
9635 /* %:find-plugindir spec function. This function replaces its argument
9636 by the -iplugindir=<dir> option. `dir' is found through find_file, that
9637 is the -print-file-name gcc program option. */
9639 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
9646 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
9651 /* %:print-asm-header spec function. Print a banner to say that the
9652 following output is from the assembler. */
9655 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
9656 const char **argv ATTRIBUTE_UNUSED
)
9658 printf (_("Assembler options\n=================\n\n"));
9659 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
9664 /* Get a random number for -frandom-seed */
9666 static unsigned HOST_WIDE_INT
9667 get_random_number (void)
9669 unsigned HOST_WIDE_INT ret
= 0;
9672 fd
= open ("/dev/urandom", O_RDONLY
);
9675 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
9681 /* Get some more or less random data. */
9682 #ifdef HAVE_GETTIMEOFDAY
9686 gettimeofday (&tv
, NULL
);
9687 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
9691 time_t now
= time (NULL
);
9693 if (now
!= (time_t)-1)
9694 ret
= (unsigned) now
;
9698 return ret
^ getpid ();
9701 /* %:compare-debug-dump-opt spec function. Save the last argument,
9702 expected to be the last -fdump-final-insns option, or generate a
9706 compare_debug_dump_opt_spec_function (int arg
,
9707 const char **argv ATTRIBUTE_UNUSED
)
9712 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
9715 fatal_error (input_location
,
9716 "too many arguments to %%:compare-debug-dump-opt");
9718 do_spec_2 ("%{fdump-final-insns=*:%*}");
9719 do_spec_1 (" ", 0, NULL
);
9721 if (argbuf
.length () > 0
9722 && strcmp (argv
[argbuf
.length () - 1], "."))
9727 name
= xstrdup (argv
[argbuf
.length () - 1]);
9732 const char *ext
= NULL
;
9734 if (argbuf
.length () > 0)
9736 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
9739 else if (!compare_debug
)
9742 do_spec_2 ("%g.gkd");
9744 do_spec_1 (" ", 0, NULL
);
9746 gcc_assert (argbuf
.length () > 0);
9748 name
= concat (argbuf
.last (), ext
, NULL
);
9750 ret
= concat ("-fdump-final-insns=", name
, NULL
);
9753 which
= compare_debug
< 0;
9754 debug_check_temp_file
[which
] = name
;
9758 unsigned HOST_WIDE_INT value
= get_random_number ();
9760 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
9766 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
9777 static const char *debug_auxbase_opt
;
9779 /* %:compare-debug-self-opt spec function. Expands to the options
9780 that are to be passed in the second compilation of
9784 compare_debug_self_opt_spec_function (int arg
,
9785 const char **argv ATTRIBUTE_UNUSED
)
9788 fatal_error (input_location
,
9789 "too many arguments to %%:compare-debug-self-opt");
9791 if (compare_debug
>= 0)
9794 do_spec_2 ("%{c|S:%{o*:%*}}");
9795 do_spec_1 (" ", 0, NULL
);
9797 if (argbuf
.length () > 0)
9798 debug_auxbase_opt
= concat ("-auxbase-strip ",
9802 debug_auxbase_opt
= NULL
;
9805 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
9806 %<fdump-final-insns=* -w -S -o %j \
9807 %{!fcompare-debug-second:-fcompare-debug-second} \
9808 ", compare_debug_opt
, NULL
);
9811 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
9812 options that are to be passed in the second compilation of
9813 compare-debug. It expects, as an argument, the basename of the
9814 current input file name, with the .gk suffix appended to it. */
9817 compare_debug_auxbase_opt_spec_function (int arg
,
9824 fatal_error (input_location
,
9825 "too few arguments to %%:compare-debug-auxbase-opt");
9828 fatal_error (input_location
,
9829 "too many arguments to %%:compare-debug-auxbase-opt");
9831 if (compare_debug
>= 0)
9834 len
= strlen (argv
[0]);
9835 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
9836 fatal_error (input_location
, "argument to %%:compare-debug-auxbase-opt "
9837 "does not end in .gk");
9839 if (debug_auxbase_opt
)
9840 return debug_auxbase_opt
;
9842 #define OPT "-auxbase "
9845 name
= (char*) xmalloc (sizeof (OPT
) + len
);
9846 memcpy (name
, OPT
, sizeof (OPT
) - 1);
9847 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
9848 name
[sizeof (OPT
) - 1 + len
] = '\0';
9855 /* %:pass-through-libs spec function. Finds all -l options and input
9856 file names in the lib spec passed to it, and makes a list of them
9857 prepended with the plugin option to cause them to be passed through
9858 to the final link after all the new object files have been added. */
9861 pass_through_libs_spec_func (int argc
, const char **argv
)
9863 char *prepended
= xstrdup (" ");
9865 /* Shlemiel the painter's algorithm. Innately horrible, but at least
9866 we know that there will never be more than a handful of strings to
9867 concat, and it's only once per run, so it's not worth optimising. */
9868 for (n
= 0; n
< argc
; n
++)
9870 char *old
= prepended
;
9871 /* Anything that isn't an option is a full path to an output
9872 file; pass it through if it ends in '.a'. Among options,
9874 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
9876 const char *lopt
= argv
[n
] + 2;
9877 /* Handle both joined and non-joined -l options. If for any
9878 reason there's a trailing -l with no joined or following
9879 arg just discard it. */
9880 if (!*lopt
&& ++n
>= argc
)
9884 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
9887 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
9889 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
9890 argv
[n
], " ", NULL
);
9892 if (prepended
!= old
)
9898 /* %:replace-extension spec function. Replaces the extension of the
9899 first argument with the second argument. */
9902 replace_extension_spec_func (int argc
, const char **argv
)
9910 fatal_error (input_location
, "too few arguments to %%:replace-extension");
9912 name
= xstrdup (argv
[0]);
9914 for (i
= strlen (name
) - 1; i
>= 0; i
--)
9915 if (IS_DIR_SEPARATOR (name
[i
]))
9918 p
= strrchr (name
+ i
+ 1, '.');
9922 result
= concat (name
, argv
[1], NULL
);
9928 /* Returns "" if ARGV[ARGC - 2] is greater than ARGV[ARGC-1].
9929 Otherwise, return NULL. */
9932 greater_than_spec_func (int argc
, const char **argv
)
9939 gcc_assert (argc
>= 2);
9941 long arg
= strtol (argv
[argc
- 2], &converted
, 10);
9942 gcc_assert (converted
!= argv
[argc
- 2]);
9944 long lim
= strtol (argv
[argc
- 1], &converted
, 10);
9945 gcc_assert (converted
!= argv
[argc
- 1]);
9953 /* Returns "" if debug_info_level is greater than ARGV[ARGC-1].
9954 Otherwise, return NULL. */
9957 debug_level_greater_than_spec_func (int argc
, const char **argv
)
9962 fatal_error (input_location
,
9963 "wrong number of arguments to %%:debug-level-gt");
9965 long arg
= strtol (argv
[0], &converted
, 10);
9966 gcc_assert (converted
!= argv
[0]);
9968 if (debug_info_level
> arg
)
9974 /* Insert backslash before spaces in ORIG (usually a file path), to
9975 avoid being broken by spec parser.
9977 This function is needed as do_spec_1 treats white space (' ' and '\t')
9978 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
9979 the file name should be treated as a single argument rather than being
9980 broken into multiple. Solution is to insert '\\' before the space in a
9983 This function converts and only converts all occurrence of ' '
9984 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
9988 "a\\ b" -> "a\\\\ b"
9990 orig: input null-terminating string that was allocated by xalloc. The
9991 memory it points to might be freed in this function. Behavior undefined
9992 if ORIG wasn't xalloced or was freed already at entry.
9994 Return: ORIG if no conversion needed. Otherwise a newly allocated string
9995 that was converted from ORIG. */
9998 convert_white_space (char *orig
)
10000 int len
, number_of_space
= 0;
10002 for (len
= 0; orig
[len
]; len
++)
10003 if (orig
[len
] == ' ' || orig
[len
] == '\t') number_of_space
++;
10005 if (number_of_space
)
10007 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
10009 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
10011 if (orig
[j
] == ' ' || orig
[j
] == '\t')
10012 new_spec
[k
++] = '\\';
10013 new_spec
[k
] = orig
[j
];
10023 path_prefix_reset (path_prefix
*prefix
)
10025 struct prefix_list
*iter
, *next
;
10026 iter
= prefix
->plist
;
10030 free (const_cast <char *> (iter
->prefix
));
10035 prefix
->max_len
= 0;
10038 /* Restore all state within gcc.c to the initial state, so that the driver
10039 code can be safely re-run in-process.
10041 Many const char * variables are referenced by static specs (see
10042 INIT_STATIC_SPEC above). These variables are restored to their default
10043 values by a simple loop over the static specs.
10045 For other variables, we directly restore them all to their initial
10046 values (often implicitly 0).
10048 Free the various obstacks in this file, along with "opts_obstack"
10051 This function also restores any environment variables that were changed. */
10054 driver::finalize ()
10057 params_c_finalize ();
10058 diagnostic_finish (global_dc
);
10061 at_file_supplied
= 0;
10062 print_help_list
= 0;
10064 verbose_only_flag
= 0;
10065 print_subprocess_help
= 0;
10067 report_times_to_file
= NULL
;
10068 target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
10069 target_system_root_changed
= 0;
10070 target_sysroot_suffix
= 0;
10071 target_sysroot_hdrs_suffix
= 0;
10072 save_temps_flag
= SAVE_TEMPS_NONE
;
10073 save_temps_prefix
= 0;
10074 save_temps_length
= 0;
10075 spec_machine
= DEFAULT_TARGET_MACHINE
;
10076 greatest_status
= 1;
10078 finalize_options_struct (&global_options
);
10079 finalize_options_struct (&global_options_set
);
10081 obstack_free (&obstack
, NULL
);
10082 obstack_free (&opts_obstack
, NULL
); /* in opts.c */
10083 obstack_free (&collect_obstack
, NULL
);
10085 link_command_spec
= LINK_COMMAND_SPEC
;
10087 obstack_free (&multilib_obstack
, NULL
);
10089 user_specs_head
= NULL
;
10090 user_specs_tail
= NULL
;
10092 /* Within the "compilers" vec, the fields "suffix" and "spec" were
10093 statically allocated for the default compilers, but dynamically
10094 allocated for additional compilers. Delete them for the latter. */
10095 for (int i
= n_default_compilers
; i
< n_compilers
; i
++)
10097 free (const_cast <char *> (compilers
[i
].suffix
));
10098 free (const_cast <char *> (compilers
[i
].spec
));
10100 XDELETEVEC (compilers
);
10104 linker_options
.truncate (0);
10105 assembler_options
.truncate (0);
10106 preprocessor_options
.truncate (0);
10108 path_prefix_reset (&exec_prefixes
);
10109 path_prefix_reset (&startfile_prefixes
);
10110 path_prefix_reset (&include_prefixes
);
10112 machine_suffix
= 0;
10113 just_machine_suffix
= 0;
10114 gcc_exec_prefix
= 0;
10115 gcc_libexec_prefix
= 0;
10116 md_exec_prefix
= MD_EXEC_PREFIX
;
10117 md_startfile_prefix
= MD_STARTFILE_PREFIX
;
10118 md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
10120 multilib_os_dir
= 0;
10123 /* Free any specs dynamically-allocated by set_spec.
10124 These will be at the head of the list, before the
10125 statically-allocated ones. */
10128 while (specs
!= static_specs
)
10130 spec_list
*next
= specs
->next
;
10131 free (const_cast <char *> (specs
->name
));
10137 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
10139 spec_list
*sl
= &static_specs
[i
];
10143 free (const_cast <char *> (*(sl
->ptr_spec
)));
10144 sl
->alloc_p
= false;
10146 *(sl
->ptr_spec
) = sl
->default_ptr
;
10149 extra_specs
= NULL
;
10152 processing_spec_function
= 0;
10154 argbuf
.truncate (0);
10160 execution_count
= 0;
10163 temp_filename
= NULL
;
10164 temp_filename_length
= 0;
10165 always_delete_queue
= NULL
;
10166 failure_delete_queue
= NULL
;
10168 XDELETEVEC (switches
);
10171 n_switches_alloc
= 0;
10174 compare_debug_second
= 0;
10175 compare_debug_opt
= NULL
;
10176 for (int i
= 0; i
< 2; i
++)
10178 switches_debug_check
[i
] = NULL
;
10179 n_switches_debug_check
[i
] = 0;
10180 n_switches_alloc_debug_check
[i
] = 0;
10181 debug_check_temp_file
[i
] = NULL
;
10184 XDELETEVEC (infiles
);
10187 n_infiles_alloc
= 0;
10189 combine_inputs
= false;
10190 added_libraries
= 0;
10191 XDELETEVEC (outfiles
);
10194 last_language_n_infiles
= 0;
10195 gcc_input_filename
= NULL
;
10196 input_file_number
= 0;
10197 input_filename_length
= 0;
10198 basename_length
= 0;
10199 suffixed_basename_length
= 0;
10200 input_basename
= NULL
;
10201 input_suffix
= NULL
;
10202 /* We don't need to purge "input_stat", just to unset "input_stat_set". */
10203 input_stat_set
= 0;
10204 input_file_compiler
= NULL
;
10206 delete_this_arg
= 0;
10207 this_is_output_file
= 0;
10208 this_is_library_file
= 0;
10209 this_is_linker_script
= 0;
10210 input_from_pipe
= 0;
10211 suffix_subst
= NULL
;
10216 debug_auxbase_opt
= NULL
;
10218 used_arg
.finalize ();
10222 Targets can provide configure-time default options in
10223 OPTION_DEFAULT_SPECS. The jit needs to access these, but
10224 they are expressed in the spec language.
10226 Run just enough of the driver to be able to expand these
10227 specs, and then call the callback CB on each
10228 such option. The options strings are *without* a leading
10229 '-' character e.g. ("march=x86-64"). Finally, clean up. */
10232 driver_get_configure_time_options (void (*cb
) (const char *option
,
10238 obstack_init (&obstack
);
10239 init_opts_obstack ();
10242 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
10243 do_option_spec (option_default_specs
[i
].name
,
10244 option_default_specs
[i
].spec
);
10246 for (i
= 0; (int) i
< n_switches
; i
++)
10248 gcc_assert (switches
[i
].part1
);
10249 (*cb
) (switches
[i
].part1
, user_data
);
10252 obstack_free (&opts_obstack
, NULL
);
10253 obstack_free (&obstack
, NULL
);