1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2020 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 /* This program is the user interface to the C compiler and possibly to
21 other compilers. It is used because compilation is a complicated procedure
22 which involves running several programs and passing temporary files between
23 them, forwarding the users switches to those programs selectively,
24 and deleting the temporary files at the end.
26 CC recognizes how to compile each input file by suffixes in the file names.
27 Once it knows which kind of compilation to perform, the procedure for
28 compilation is specified by a string called a "spec". */
32 #include "coretypes.h"
33 #include "multilib.h" /* before tm.h */
39 #include "opt-suggestions.h"
41 #include "diagnostic.h"
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 that stores string prefix for which we provide bash completion. */
225 static const char *completion
= NULL
;
227 /* Flag indicating whether we should ONLY print the command and
228 arguments (like verbose_flag) without executing the command.
229 Displayed arguments are quoted so that the generated command
230 line is suitable for execution. This is intended for use in
231 shell scripts to capture the driver-generated command line. */
232 static int verbose_only_flag
;
234 /* Flag indicating how to print command line options of sub-processes. */
236 static int print_subprocess_help
;
238 /* Linker suffix passed to -fuse-ld=... */
239 static const char *use_ld
;
241 /* Whether we should report subprocess execution times to a file. */
243 FILE *report_times_to_file
= NULL
;
245 /* Nonzero means place this string before uses of /, so that include
246 and library files can be found in an alternate location. */
248 #ifdef TARGET_SYSTEM_ROOT
249 #define DEFAULT_TARGET_SYSTEM_ROOT (TARGET_SYSTEM_ROOT)
251 #define DEFAULT_TARGET_SYSTEM_ROOT (0)
253 static const char *target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
255 /* Nonzero means pass the updated target_system_root to the compiler. */
257 static int target_system_root_changed
;
259 /* Nonzero means append this string to target_system_root. */
261 static const char *target_sysroot_suffix
= 0;
263 /* Nonzero means append this string to target_system_root for headers. */
265 static const char *target_sysroot_hdrs_suffix
= 0;
267 /* Nonzero means write "temp" files in source directory
268 and use the source file's name in them, and don't delete them. */
270 static enum save_temps
{
271 SAVE_TEMPS_NONE
, /* no -save-temps */
272 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
273 SAVE_TEMPS_DUMP
, /* -save-temps in dumpdir */
274 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
277 /* Set this iff the dumppfx implied by a -save-temps=* option is to
278 override a -dumpdir option, if any. */
279 static bool save_temps_overrides_dumpdir
= false;
281 /* -dumpdir, -dumpbase and -dumpbase-ext flags passed in, possibly
282 rearranged as they are to be passed down, e.g., dumpbase and
283 dumpbase_ext may be cleared if integrated with dumpdir or
285 static char *dumpdir
, *dumpbase
, *dumpbase_ext
;
287 /* Usually the length of the string in dumpdir. However, during
288 linking, it may be shortened to omit a driver-added trailing dash,
289 by then replaced with a trailing period, that is still to be passed
290 to sub-processes in -dumpdir, but not to be generally used in spec
291 filename expansions. See maybe_run_linker. */
292 static size_t dumpdir_length
= 0;
294 /* Set if the last character in dumpdir is (or was) a dash that the
295 driver added to dumpdir after dumpbase or linker output name. */
296 static bool dumpdir_trailing_dash_added
= false;
298 /* Basename of dump and aux outputs, computed from dumpbase (given or
299 derived from output name), to override input_basename in non-%w %b
301 static char *outbase
;
302 static size_t outbase_length
= 0;
304 /* The compiler version. */
306 static const char *compiler_version
;
308 /* The target version. */
310 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
312 /* The target machine. */
314 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
315 static const char *spec_host_machine
= DEFAULT_REAL_TARGET_MACHINE
;
317 /* List of offload targets. Separated by colon. Empty string for
318 -foffload=disable. */
320 static char *offload_targets
= NULL
;
322 /* Nonzero if cross-compiling.
323 When -b is used, the value comes from the `specs' file. */
325 #ifdef CROSS_DIRECTORY_STRUCTURE
326 static const char *cross_compile
= "1";
328 static const char *cross_compile
= "0";
331 /* Greatest exit code of sub-processes that has been encountered up to
333 static int greatest_status
= 1;
335 /* This is the obstack which we use to allocate many strings. */
337 static struct obstack obstack
;
339 /* This is the obstack to build an environment variable to pass to
340 collect2 that describes all of the relevant switches of what to
341 pass the compiler in building the list of pointers to constructors
344 static struct obstack collect_obstack
;
346 /* Forward declaration for prototypes. */
350 static void init_spec (void);
351 static void store_arg (const char *, int, int);
352 static void insert_wrapper (const char *);
353 static char *load_specs (const char *);
354 static void read_specs (const char *, bool, bool);
355 static void set_spec (const char *, const char *, bool);
356 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
357 static char *build_search_list (const struct path_prefix
*, const char *,
359 static void xputenv (const char *);
360 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
362 static int access_check (const char *, int);
363 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
364 static void add_prefix (struct path_prefix
*, const char *, const char *,
366 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
367 const char *, int, int, int);
368 static char *skip_whitespace (char *);
369 static void delete_if_ordinary (const char *);
370 static void delete_temp_files (void);
371 static void delete_failure_queue (void);
372 static void clear_failure_queue (void);
373 static int check_live_switch (int, int);
374 static const char *handle_braces (const char *);
375 static inline bool input_suffix_matches (const char *, const char *);
376 static inline bool switch_matches (const char *, const char *, int);
377 static inline void mark_matching_switches (const char *, const char *, int);
378 static inline void process_marked_switches (void);
379 static const char *process_brace_body (const char *, const char *, const char *, int, int);
380 static const struct spec_function
*lookup_spec_function (const char *);
381 static const char *eval_spec_function (const char *, const char *, const char *);
382 static const char *handle_spec_function (const char *, bool *, const char *);
383 static char *save_string (const char *, int);
384 static void set_collect_gcc_options (void);
385 static int do_spec_1 (const char *, int, const char *);
386 static int do_spec_2 (const char *, const char *);
387 static void do_option_spec (const char *, const char *);
388 static void do_self_spec (const char *);
389 static const char *find_file (const char *);
390 static int is_directory (const char *, bool);
391 static const char *validate_switches (const char *, bool, bool);
392 static void validate_all_switches (void);
393 static inline void validate_switches_from_spec (const char *, bool);
394 static void give_switch (int, int);
395 static int default_arg (const char *, int);
396 static void set_multilib_dir (void);
397 static void print_multilib_info (void);
398 static void display_help (void);
399 static void add_preprocessor_option (const char *, int);
400 static void add_assembler_option (const char *, int);
401 static void add_linker_option (const char *, int);
402 static void process_command (unsigned int, struct cl_decoded_option
*);
403 static int execute (void);
404 static void alloc_args (void);
405 static void clear_args (void);
406 static void fatal_signal (int);
407 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
408 static void init_gcc_specs (struct obstack
*, const char *, const char *,
411 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
412 static const char *convert_filename (const char *, int, int);
415 static void try_generate_repro (const char **argv
);
416 static const char *getenv_spec_function (int, const char **);
417 static const char *if_exists_spec_function (int, const char **);
418 static const char *if_exists_else_spec_function (int, const char **);
419 static const char *sanitize_spec_function (int, const char **);
420 static const char *replace_outfile_spec_function (int, const char **);
421 static const char *remove_outfile_spec_function (int, const char **);
422 static const char *version_compare_spec_function (int, const char **);
423 static const char *include_spec_function (int, const char **);
424 static const char *find_file_spec_function (int, const char **);
425 static const char *find_plugindir_spec_function (int, const char **);
426 static const char *print_asm_header_spec_function (int, const char **);
427 static const char *compare_debug_dump_opt_spec_function (int, const char **);
428 static const char *compare_debug_self_opt_spec_function (int, const char **);
429 static const char *pass_through_libs_spec_func (int, const char **);
430 static const char *dumps_spec_func (int, const char **);
431 static const char *greater_than_spec_func (int, const char **);
432 static const char *debug_level_greater_than_spec_func (int, const char **);
433 static const char *find_fortran_preinclude_file (int, const char **);
434 static char *convert_white_space (char *);
435 static char *quote_spec (char *);
436 static char *quote_spec_arg (char *);
437 static bool not_actual_file_p (const char *);
440 /* The Specs Language
442 Specs are strings containing lines, each of which (if not blank)
443 is made up of a program name, and arguments separated by spaces.
444 The program name must be exact and start from root, since no path
445 is searched and it is unreliable to depend on the current working directory.
446 Redirection of input or output is not supported; the subprograms must
447 accept filenames saying what files to read and write.
449 In addition, the specs can contain %-sequences to substitute variable text
450 or for conditional text. Here is a table of all defined %-sequences.
451 Note that spaces are not generated automatically around the results of
452 expanding these sequences; therefore, you can concatenate them together
453 or with constant text in a single argument.
455 %% substitute one % into the program name or argument.
456 %" substitute an empty argument.
457 %i substitute the name of the input file being processed.
458 %b substitute the basename for outputs related with the input file
459 being processed. This is often a substring of the input file name,
460 up to (and not including) the last period but, unless %w is active,
461 it is affected by the directory selected by -save-temps=*, by
462 -dumpdir, and, in case of multiple compilations, even by -dumpbase
463 and -dumpbase-ext and, in case of linking, by the linker output
464 name. When %w is active, it derives the main output name only from
465 the input file base name; when it is not, it names aux/dump output
467 %B same as %b, but include the input file suffix (text after the last
470 substitute a file name that has suffix SUFFIX and is chosen
471 once per compilation, and mark the argument a la %d. To reduce
472 exposure to denial-of-service attacks, the file name is now
473 chosen in a way that is hard to predict even when previously
474 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
475 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
476 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
477 had been pre-processed. Previously, %g was simply substituted
478 with a file name chosen once per compilation, without regard
479 to any appended suffix (which was therefore treated just like
480 ordinary text), making such attacks more likely to succeed.
482 like %g, but if -pipe is in effect, expands simply to "-".
484 like %g, but if -pipe is in effect, expands to nothing. (We have both
485 %| and %m to accommodate differences between system assemblers; see
486 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
488 like %g, but generates a new temporary file name even if %uSUFFIX
491 substitutes the last file name generated with %uSUFFIX, generating a
492 new one if there is no such last file name. In the absence of any
493 %uSUFFIX, this is just like %gSUFFIX, except they don't share
494 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
495 would involve the generation of two distinct file names, one
496 for each `%g.s' and another for each `%U.s'. Previously, %U was
497 simply substituted with a file name chosen for the previous %u,
498 without regard to any appended suffix.
500 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
501 writable, and if save-temps is off; otherwise, substitute the name
502 of a temporary file, just like %u. This temporary file is not
503 meant for communication between processes, but rather as a junk
506 substitutes .SUFFIX for the suffixes of a matched switch's args when
507 it is subsequently output with %*. SUFFIX is terminated by the next
509 %d marks the argument containing or following the %d as a
510 temporary file name, so that file will be deleted if GCC exits
511 successfully. Unlike %g, this contributes no text to the argument.
512 %w marks the argument containing or following the %w as the
513 "output file" of this compilation. This puts the argument
514 into the sequence of arguments that %o will substitute later.
515 %V indicates that this compilation produces no "output file".
517 like %{...} but marks the last argument supplied within as a file
518 to be deleted on failure.
520 like %{...} but puts the result into a FILE and substitutes @FILE
521 if an @file argument has been supplied.
522 %o substitutes the names of all the output files, with spaces
523 automatically placed around them. You should write spaces
524 around the %o as well or the results are undefined.
525 %o is for use in the specs for running the linker.
526 Input files whose names have no recognized suffix are not compiled
527 at all, but they are included among the output files, so they will
529 %O substitutes the suffix for object files. Note that this is
530 handled specially when it immediately follows %g, %u, or %U
531 (with or without a suffix argument) because of the need for
532 those to form complete file names. The handling is such that
533 %O is treated exactly as if it had already been substituted,
534 except that %g, %u, and %U do not currently support additional
535 SUFFIX characters following %O as they would following, for
537 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
538 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
539 and -B options) and -imultilib as necessary.
540 %s current argument is the name of a library or startup file of some sort.
541 Search for that file in a standard list of directories
542 and substitute the full name found.
543 %eSTR Print STR as an error message. STR is terminated by a newline.
544 Use this when inconsistent options are detected.
545 %nSTR Print STR as a notice. STR is terminated by a newline.
546 %x{OPTION} Accumulate an option for %X.
547 %X Output the accumulated linker options specified by compilations.
548 %Y Output the accumulated assembler options specified by compilations.
549 %Z Output the accumulated preprocessor options specified by compilations.
550 %a process ASM_SPEC as a spec.
551 This allows config.h to specify part of the spec for running as.
552 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
553 used here. This can be used to run a post-processor after the
554 assembler has done its job.
555 %D Dump out a -L option for each directory in startfile_prefixes.
556 If multilib_dir is set, extra entries are generated with it affixed.
557 %l process LINK_SPEC as a spec.
558 %L process LIB_SPEC as a spec.
559 %M Output multilib_os_dir.
560 %G process LIBGCC_SPEC as a spec.
561 %R Output the concatenation of target_system_root and
562 target_sysroot_suffix.
563 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
564 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
565 %C process CPP_SPEC as a spec.
566 %1 process CC1_SPEC as a spec.
567 %2 process CC1PLUS_SPEC as a spec.
568 %* substitute the variable part of a matched option. (See below.)
569 Note that each comma in the substituted string is replaced by
570 a single space. A space is appended after the last substition
571 unless there is more text in current sequence.
572 %<S remove all occurrences of -S from the command line.
573 Note - this command is position dependent. % commands in the
574 spec string before this one will see -S, % commands in the
575 spec string after this one will not.
576 %>S Similar to "%<S", but keep it in the GCC command line.
577 %<S* remove all occurrences of all switches beginning with -S from the
580 Call the named function FUNCTION, passing it ARGS. ARGS is
581 first processed as a nested spec string, then split into an
582 argument vector in the usual fashion. The function returns
583 a string which is processed as if it had appeared literally
584 as part of the current spec.
585 %{S} substitutes the -S switch, if that switch was given to GCC.
586 If that switch was not specified, this substitutes nothing.
587 Here S is a metasyntactic variable.
588 %{S*} substitutes all the switches specified to GCC whose names start
589 with -S. This is used for -o, -I, etc; switches that take
590 arguments. GCC considers `-o foo' as being one switch whose
591 name starts with `o'. %{o*} would substitute this text,
592 including the space; thus, two arguments would be generated.
593 %{S*&T*} likewise, but preserve order of S and T options (the order
594 of S and T in the spec is not significant). Can be any number
595 of ampersand-separated variables; for each the wild card is
596 optional. Useful for CPP as %{D*&U*&A*}.
598 %{S:X} substitutes X, if the -S switch was given to GCC.
599 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
600 %{S*:X} substitutes X if one or more switches whose names start
601 with -S was given to GCC. Normally X is substituted only
602 once, no matter how many such switches appeared. However,
603 if %* appears somewhere in X, then X will be substituted
604 once for each matching switch, with the %* replaced by the
605 part of that switch that matched the '*'. A space will be
606 appended after the last substition unless there is more
607 text in current sequence.
608 %{.S:X} substitutes X, if processing a file with suffix S.
609 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
610 %{,S:X} substitutes X, if processing a file which will use spec S.
611 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
613 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
614 combined with '!', '.', ',', and '*' as above binding stronger
616 If %* appears in X, all of the alternatives must be starred, and
617 only the first matching alternative is substituted.
618 %{%:function(args):X}
619 Call function named FUNCTION with args ARGS. If the function
620 returns non-NULL, then X is substituted, if it returns
621 NULL, it isn't substituted.
622 %{S:X; if S was given to GCC, substitutes X;
623 T:Y; else if T was given to GCC, substitutes Y;
624 :D} else substitutes D. There can be as many clauses as you need.
625 This may be combined with '.', '!', ',', '|', and '*' as above.
627 %(Spec) processes a specification defined in a specs file as *Spec:
629 The switch matching text S in a %{S}, %{S:X}, or similar construct can use
630 a backslash to ignore the special meaning of the character following it,
631 thus allowing literal matching of a character that is otherwise specially
632 treated. For example, %{std=iso9899\:1999:X} substitutes X if the
633 -std=iso9899:1999 option is given.
635 The conditional text X in a %{S:X} or similar construct may contain
636 other nested % constructs or spaces, or even newlines. They are
637 processed as usual, as described above. Trailing white space in X is
638 ignored. White space may also appear anywhere on the left side of the
639 colon in these constructs, except between . or * and the corresponding
642 The -O, -f, -g, -m, and -W switches are handled specifically in these
643 constructs. If another value of -O or the negated form of a -f, -m, or
644 -W switch is found later in the command line, the earlier switch
645 value is ignored, except with {S*} where S is just one letter; this
646 passes all matching options.
648 The character | at the beginning of the predicate text is used to indicate
649 that a command should be piped to the following command, but only if -pipe
652 Note that it is built into GCC which switches take arguments and which
653 do not. You might think it would be useful to generalize this to
654 allow each compiler's spec to say which switches take arguments. But
655 this cannot be done in a consistent fashion. GCC cannot even decide
656 which input files have been specified without knowing which switches
657 take arguments, and it must know which input files to compile in order
658 to tell which compilers to run.
660 GCC also knows implicitly that arguments starting in `-l' are to be
661 treated as compiler output files, and passed to the linker in their
662 proper position among the other output files. */
664 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
666 /* config.h can define ASM_SPEC to provide extra args to the assembler
667 or extra switch-translations. */
672 /* config.h can define ASM_FINAL_SPEC to run a post processor after
673 the assembler has run. */
674 #ifndef ASM_FINAL_SPEC
675 #define ASM_FINAL_SPEC \
677 objcopy --extract-dwo \
678 %{c:%{o*:%*}%{!o*:%w%b%O}}%{!c:%U%O} \
680 objcopy --strip-dwo \
681 %{c:%{o*:%*}%{!o*:%w%b%O}}%{!c:%U%O} \
685 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
686 or extra switch-translations. */
691 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
692 or extra switch-translations. */
697 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
698 or extra switch-translations. */
700 #define CC1PLUS_SPEC ""
703 /* config.h can define LINK_SPEC to provide extra args to the linker
704 or extra switch-translations. */
709 /* config.h can define LIB_SPEC to override the default libraries. */
711 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
714 /* When using -fsplit-stack we need to wrap pthread_create, in order
715 to initialize the stack guard. We always use wrapping, rather than
716 shared library ordering, and we keep the wrapper function in
717 libgcc. This is not yet a real spec, though it could become one;
718 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
719 only works with GNU ld and gold. */
720 #ifdef HAVE_GOLD_NON_DEFAULT_SPLIT_STACK
721 #define STACK_SPLIT_SPEC " %{fsplit-stack: -fuse-ld=gold --wrap=pthread_create}"
723 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
727 #define STATIC_LIBASAN_LIBS \
728 " %{static-libasan|static:%:include(libsanitizer.spec)%(link_libasan)}"
729 #ifdef LIBASAN_EARLY_SPEC
730 #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
731 #elif defined(HAVE_LD_STATIC_DYNAMIC)
732 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
733 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
736 #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
740 #ifndef LIBASAN_EARLY_SPEC
741 #define LIBASAN_EARLY_SPEC ""
745 #define STATIC_LIBTSAN_LIBS \
746 " %{static-libtsan|static:%:include(libsanitizer.spec)%(link_libtsan)}"
747 #ifdef LIBTSAN_EARLY_SPEC
748 #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
749 #elif defined(HAVE_LD_STATIC_DYNAMIC)
750 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
751 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
754 #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
758 #ifndef LIBTSAN_EARLY_SPEC
759 #define LIBTSAN_EARLY_SPEC ""
763 #define STATIC_LIBLSAN_LIBS \
764 " %{static-liblsan|static:%:include(libsanitizer.spec)%(link_liblsan)}"
765 #ifdef LIBLSAN_EARLY_SPEC
766 #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
767 #elif defined(HAVE_LD_STATIC_DYNAMIC)
768 #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
769 "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
772 #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
776 #ifndef LIBLSAN_EARLY_SPEC
777 #define LIBLSAN_EARLY_SPEC ""
780 #ifndef LIBUBSAN_SPEC
781 #define STATIC_LIBUBSAN_LIBS \
782 " %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}"
783 #ifdef HAVE_LD_STATIC_DYNAMIC
784 #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
785 "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
788 #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
792 /* Linker options for compressed debug sections. */
793 #if HAVE_LD_COMPRESS_DEBUG == 0
794 /* No linker support. */
795 #define LINK_COMPRESS_DEBUG_SPEC \
796 " %{gz*:%e-gz is not supported in this configuration} "
797 #elif HAVE_LD_COMPRESS_DEBUG == 1
798 /* GNU style on input, GNU ld options. Reject, not useful. */
799 #define LINK_COMPRESS_DEBUG_SPEC \
800 " %{gz*:%e-gz is not supported in this configuration} "
801 #elif HAVE_LD_COMPRESS_DEBUG == 2
802 /* GNU style, GNU gold options. */
803 #define LINK_COMPRESS_DEBUG_SPEC \
804 " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
805 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
806 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
807 #elif HAVE_LD_COMPRESS_DEBUG == 3
808 /* ELF gABI style. */
809 #define LINK_COMPRESS_DEBUG_SPEC \
810 " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
811 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
812 " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
814 #error Unknown value for HAVE_LD_COMPRESS_DEBUG.
817 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
820 #if defined(REAL_LIBGCC_SPEC)
821 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
822 #elif defined(LINK_LIBGCC_SPECIAL_1)
823 /* Have gcc do the search for libgcc.a. */
824 #define LIBGCC_SPEC "libgcc.a%s"
826 #define LIBGCC_SPEC "-lgcc"
830 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
831 #ifndef STARTFILE_SPEC
832 #define STARTFILE_SPEC \
833 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
836 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
838 #define ENDFILE_SPEC ""
842 #define LINKER_NAME "collect2"
845 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
846 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
851 /* Assembler options for compressed debug sections. */
852 #if HAVE_LD_COMPRESS_DEBUG < 2
853 /* Reject if the linker cannot write compressed debug sections. */
854 #define ASM_COMPRESS_DEBUG_SPEC \
855 " %{gz*:%e-gz is not supported in this configuration} "
856 #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */
857 #if HAVE_AS_COMPRESS_DEBUG == 0
858 /* No assembler support. Ignore silently. */
859 #define ASM_COMPRESS_DEBUG_SPEC \
861 #elif HAVE_AS_COMPRESS_DEBUG == 1
862 /* GNU style, GNU as options. */
863 #define ASM_COMPRESS_DEBUG_SPEC \
864 " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \
865 " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \
866 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
867 #elif HAVE_AS_COMPRESS_DEBUG == 2
868 /* ELF gABI style. */
869 #define ASM_COMPRESS_DEBUG_SPEC \
870 " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
871 " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
872 " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
874 #error Unknown value for HAVE_AS_COMPRESS_DEBUG.
876 #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */
878 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
880 #ifndef ASM_DEBUG_SPEC
881 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
882 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
883 # define ASM_DEBUG_SPEC \
884 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
885 ? "%{%:debug-level-gt(0):" \
886 "%{gdwarf*:--gdwarf2}%{!gdwarf*:%{g*:--gstabs}}}" ASM_MAP \
887 : "%{%:debug-level-gt(0):" \
888 "%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
890 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
891 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gstabs}}" ASM_MAP
893 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
894 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gdwarf2}}" ASM_MAP
898 #ifndef ASM_DEBUG_SPEC
899 # define ASM_DEBUG_SPEC ""
902 /* Here is the spec for running the linker, after compiling all files. */
904 /* This is overridable by the target in case they need to specify the
905 -lgcc and -lc order specially, yet not require them to override all
906 of LINK_COMMAND_SPEC. */
907 #ifndef LINK_GCC_C_SEQUENCE_SPEC
908 #define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}"
911 #ifndef LINK_SSP_SPEC
912 #ifdef TARGET_LIBC_PROVIDES_SSP
913 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
914 "|fstack-protector-strong|fstack-protector-explicit:}"
916 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
917 "|fstack-protector-strong|fstack-protector-explicit" \
918 ":-lssp_nonshared -lssp}"
922 #ifdef ENABLE_DEFAULT_PIE
923 #define PIE_SPEC "!no-pie"
924 #define NO_FPIE1_SPEC "fno-pie"
925 #define FPIE1_SPEC NO_FPIE1_SPEC ":;"
926 #define NO_FPIE2_SPEC "fno-PIE"
927 #define FPIE2_SPEC NO_FPIE2_SPEC ":;"
928 #define NO_FPIE_SPEC NO_FPIE1_SPEC "|" NO_FPIE2_SPEC
929 #define FPIE_SPEC NO_FPIE_SPEC ":;"
930 #define NO_FPIC1_SPEC "fno-pic"
931 #define FPIC1_SPEC NO_FPIC1_SPEC ":;"
932 #define NO_FPIC2_SPEC "fno-PIC"
933 #define FPIC2_SPEC NO_FPIC2_SPEC ":;"
934 #define NO_FPIC_SPEC NO_FPIC1_SPEC "|" NO_FPIC2_SPEC
935 #define FPIC_SPEC NO_FPIC_SPEC ":;"
936 #define NO_FPIE1_AND_FPIC1_SPEC NO_FPIE1_SPEC "|" NO_FPIC1_SPEC
937 #define FPIE1_OR_FPIC1_SPEC NO_FPIE1_AND_FPIC1_SPEC ":;"
938 #define NO_FPIE2_AND_FPIC2_SPEC NO_FPIE2_SPEC "|" NO_FPIC2_SPEC
939 #define FPIE2_OR_FPIC2_SPEC NO_FPIE2_AND_FPIC2_SPEC ":;"
940 #define NO_FPIE_AND_FPIC_SPEC NO_FPIE_SPEC "|" NO_FPIC_SPEC
941 #define FPIE_OR_FPIC_SPEC NO_FPIE_AND_FPIC_SPEC ":;"
943 #define PIE_SPEC "pie"
944 #define FPIE1_SPEC "fpie"
945 #define NO_FPIE1_SPEC FPIE1_SPEC ":;"
946 #define FPIE2_SPEC "fPIE"
947 #define NO_FPIE2_SPEC FPIE2_SPEC ":;"
948 #define FPIE_SPEC FPIE1_SPEC "|" FPIE2_SPEC
949 #define NO_FPIE_SPEC FPIE_SPEC ":;"
950 #define FPIC1_SPEC "fpic"
951 #define NO_FPIC1_SPEC FPIC1_SPEC ":;"
952 #define FPIC2_SPEC "fPIC"
953 #define NO_FPIC2_SPEC FPIC2_SPEC ":;"
954 #define FPIC_SPEC FPIC1_SPEC "|" FPIC2_SPEC
955 #define NO_FPIC_SPEC FPIC_SPEC ":;"
956 #define FPIE1_OR_FPIC1_SPEC FPIE1_SPEC "|" FPIC1_SPEC
957 #define NO_FPIE1_AND_FPIC1_SPEC FPIE1_OR_FPIC1_SPEC ":;"
958 #define FPIE2_OR_FPIC2_SPEC FPIE2_SPEC "|" FPIC2_SPEC
959 #define NO_FPIE2_AND_FPIC2_SPEC FPIE1_OR_FPIC2_SPEC ":;"
960 #define FPIE_OR_FPIC_SPEC FPIE_SPEC "|" FPIC_SPEC
961 #define NO_FPIE_AND_FPIC_SPEC FPIE_OR_FPIC_SPEC ":;"
964 #ifndef LINK_PIE_SPEC
967 #define LD_PIE_SPEC "-pie"
970 #define LD_PIE_SPEC ""
972 #define LINK_PIE_SPEC "%{static|shared|r:;" PIE_SPEC ":" LD_PIE_SPEC "} "
975 #ifndef LINK_BUILDID_SPEC
976 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
977 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
981 #ifndef LTO_PLUGIN_SPEC
982 #define LTO_PLUGIN_SPEC ""
985 /* Conditional to test whether the LTO plugin is used or not.
986 FIXME: For slim LTO we will need to enable plugin unconditionally. This
987 still cause problems with PLUGIN_LD != LD and when plugin is built but
988 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
989 plugin only when LTO is enabled. We still honor explicit
990 -fuse-linker-plugin if the linker used understands -plugin. */
992 /* The linker has some plugin support. */
993 #if HAVE_LTO_PLUGIN > 0
994 /* The linker used has full plugin support, use LTO plugin by default. */
995 #if HAVE_LTO_PLUGIN == 2
996 #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
997 #define PLUGIN_COND_CLOSE "}"
999 /* The linker used has limited plugin support, use LTO plugin with explicit
1000 -fuse-linker-plugin. */
1001 #define PLUGIN_COND "fuse-linker-plugin"
1002 #define PLUGIN_COND_CLOSE ""
1004 #define LINK_PLUGIN_SPEC \
1005 "%{" PLUGIN_COND": \
1006 -plugin %(linker_plugin_file) \
1007 -plugin-opt=%(lto_wrapper) \
1008 -plugin-opt=-fresolution=%u.res \
1009 " LTO_PLUGIN_SPEC "\
1010 %{flinker-output=*:-plugin-opt=-linker-output-known} \
1011 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
1012 }" PLUGIN_COND_CLOSE
1014 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
1015 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
1016 %e-fuse-linker-plugin is not supported in this configuration}"
1019 /* Linker command line options for -fsanitize= early on the command line. */
1020 #ifndef SANITIZER_EARLY_SPEC
1021 #define SANITIZER_EARLY_SPEC "\
1022 %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
1023 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
1024 %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}}"
1027 /* Linker command line options for -fsanitize= late on the command line. */
1028 #ifndef SANITIZER_SPEC
1029 #define SANITIZER_SPEC "\
1030 %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
1031 %{static:%ecannot specify -static with -fsanitize=address}}\
1032 %{%:sanitize(thread):" LIBTSAN_SPEC "\
1033 %{static:%ecannot specify -static with -fsanitize=thread}}\
1034 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
1035 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}}"
1038 #ifndef POST_LINK_SPEC
1039 #define POST_LINK_SPEC ""
1042 /* This is the spec to use, once the code for creating the vtable
1043 verification runtime library, libvtv.so, has been created. Currently
1044 the vtable verification runtime functions are in libstdc++, so we use
1045 the spec just below this one. */
1046 #ifndef VTABLE_VERIFICATION_SPEC
1047 #if ENABLE_VTABLE_VERIFY
1048 #define VTABLE_VERIFICATION_SPEC "\
1049 %{!nostdlib:%{!r:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
1050 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}}"
1052 #define VTABLE_VERIFICATION_SPEC "\
1053 %{fvtable-verify=none:} \
1054 %{fvtable-verify=std: \
1055 %e-fvtable-verify=std is not supported in this configuration} \
1056 %{fvtable-verify=preinit: \
1057 %e-fvtable-verify=preinit is not supported in this configuration}"
1061 /* -u* was put back because both BSD and SysV seem to support it. */
1062 /* %{static|no-pie|static-pie:} simply prevents an error message:
1063 1. If the target machine doesn't handle -static.
1064 2. If PIE isn't enabled by default.
1065 3. If the target machine doesn't handle -static-pie.
1067 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
1068 scripts which exist in user specified directories, or in standard
1070 /* We pass any -flto flags on to the linker, which is expected
1071 to understand them. In practice, this means it had better be collect2. */
1072 /* %{e*} includes -export-dynamic; see comment in common.opt. */
1073 #ifndef LINK_COMMAND_SPEC
1074 #define LINK_COMMAND_SPEC "\
1075 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
1078 "%{flto|flto=*:%<fcompare-debug*} \
1079 %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
1080 "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
1081 "%X %{o*} %{e*} %{N} %{n} %{r}\
1082 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
1083 %{static|no-pie|static-pie:} %@{L*} %(mfwrap) %(link_libgcc) " \
1084 VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o "" \
1085 %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
1086 %:include(libgomp.spec)%(link_gomp)}\
1087 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
1088 %(mflib) " STACK_SPLIT_SPEC "\
1089 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
1090 %{!nostdlib:%{!r:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}}\
1091 %{!nostdlib:%{!r:%{!nostartfiles:%E}}} %{T*} \n%(post_link) }}}}}}"
1094 #ifndef LINK_LIBGCC_SPEC
1095 /* Generate -L options for startfile prefix list. */
1096 # define LINK_LIBGCC_SPEC "%D"
1099 #ifndef STARTFILE_PREFIX_SPEC
1100 # define STARTFILE_PREFIX_SPEC ""
1103 #ifndef SYSROOT_SPEC
1104 # define SYSROOT_SPEC "--sysroot=%R"
1107 #ifndef SYSROOT_SUFFIX_SPEC
1108 # define SYSROOT_SUFFIX_SPEC ""
1111 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
1112 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
1115 static const char *asm_debug
= ASM_DEBUG_SPEC
;
1116 static const char *cpp_spec
= CPP_SPEC
;
1117 static const char *cc1_spec
= CC1_SPEC
;
1118 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
1119 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
1120 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
1121 static const char *asm_spec
= ASM_SPEC
;
1122 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
1123 static const char *link_spec
= LINK_SPEC
;
1124 static const char *lib_spec
= LIB_SPEC
;
1125 static const char *link_gomp_spec
= "";
1126 static const char *libgcc_spec
= LIBGCC_SPEC
;
1127 static const char *endfile_spec
= ENDFILE_SPEC
;
1128 static const char *startfile_spec
= STARTFILE_SPEC
;
1129 static const char *linker_name_spec
= LINKER_NAME
;
1130 static const char *linker_plugin_file_spec
= "";
1131 static const char *lto_wrapper_spec
= "";
1132 static const char *lto_gcc_spec
= "";
1133 static const char *post_link_spec
= POST_LINK_SPEC
;
1134 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
1135 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
1136 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
1137 static const char *sysroot_spec
= SYSROOT_SPEC
;
1138 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
1139 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
1140 static const char *self_spec
= "";
1142 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
1143 There should be no need to override these in target dependent files,
1144 but we need to copy them to the specs file so that newer versions
1145 of the GCC driver can correctly drive older tool chains with the
1146 appropriate -B options. */
1148 /* When cpplib handles traditional preprocessing, get rid of this, and
1149 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
1150 that we default the front end language better. */
1151 static const char *trad_capable_cpp
=
1152 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
1154 /* We don't wrap .d files in %W{} since a missing .d file, and
1155 therefore no dependency entry, confuses make into thinking a .o
1156 file that happens to exist is up-to-date. */
1157 static const char *cpp_unique_options
=
1158 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %@{I*&F*} %{P} %I\
1159 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
1160 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
1161 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
1162 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
1163 %{remap} %{g3|ggdb3|gstabs3|gxcoff3|gvms3:-dD}\
1164 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1165 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
1168 /* This contains cpp options which are common with cc1_options and are passed
1169 only when preprocessing only to avoid duplication. We pass the cc1 spec
1170 options to the preprocessor so that it the cc1 spec may manipulate
1171 options used to set target flags. Those special target flags settings may
1172 in turn cause preprocessor symbols to be defined specially. */
1173 static const char *cpp_options
=
1174 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
1175 %{f*} %{g*:%{%:debug-level-gt(0):%{g*}\
1176 %{!fno-working-directory:-fworking-directory}}} %{O*}\
1177 %{undef} %{save-temps*:-fpch-preprocess}";
1179 /* Pass -d* flags, possibly modifying -dumpdir, -dumpbase et al.
1181 Make it easy for a language to override the argument for the
1182 %:dumps specs function call. */
1183 #define DUMPS_OPTIONS(EXTS) \
1184 "%<dumpdir %<dumpbase %<dumpbase-ext %{d*} %:dumps(" EXTS ")"
1186 /* This contains cpp options which are not passed when the preprocessor
1187 output will be used by another program. */
1188 static const char *cpp_debug_options
= DUMPS_OPTIONS ("");
1190 /* NB: This is shared amongst all front-ends, except for Ada. */
1191 static const char *cc1_options
=
1192 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
1193 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1194 %1 %{!Q:-quiet} %(cpp_debug_options) %{m*} %{aux-info*}\
1195 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
1196 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
1197 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
1198 %{-target-help:--target-help}\
1199 %{-version:--version}\
1200 %{-help=*:--help=%*}\
1201 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %w%b.s}}}\
1202 %{fsyntax-only:-o %j} %{-param*}\
1203 %{coverage:-fprofile-arcs -ftest-coverage}\
1204 %{fprofile-arcs|fprofile-generate*|coverage:\
1205 %{!fprofile-update=single:\
1206 %{pthread:-fprofile-update=prefer-atomic}}}";
1208 static const char *asm_options
=
1209 "%{-target-help:%:print-asm-header()} "
1211 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
1212 to the assembler equivalents. */
1213 "%{v} %{w:-W} %{I*} "
1215 ASM_COMPRESS_DEBUG_SPEC
1216 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
1218 static const char *invoke_as
=
1219 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1221 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1222 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
1226 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1227 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
1231 /* Some compilers have limits on line lengths, and the multilib_select
1232 and/or multilib_matches strings can be very long, so we build them at
1234 static struct obstack multilib_obstack
;
1235 static const char *multilib_select
;
1236 static const char *multilib_matches
;
1237 static const char *multilib_defaults
;
1238 static const char *multilib_exclusions
;
1239 static const char *multilib_reuse
;
1241 /* Check whether a particular argument is a default argument. */
1243 #ifndef MULTILIB_DEFAULTS
1244 #define MULTILIB_DEFAULTS { "" }
1247 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
1249 #ifndef DRIVER_SELF_SPECS
1250 #define DRIVER_SELF_SPECS ""
1253 /* Linking to libgomp implies pthreads. This is particularly important
1254 for targets that use different start files and suchlike. */
1255 #ifndef GOMP_SELF_SPECS
1256 #define GOMP_SELF_SPECS \
1257 "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \
1261 /* Likewise for -fgnu-tm. */
1262 #ifndef GTM_SELF_SPECS
1263 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1266 static const char *const driver_self_specs
[] = {
1267 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1268 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
1271 #ifndef OPTION_DEFAULT_SPECS
1272 #define OPTION_DEFAULT_SPECS { "", "" }
1281 static const struct default_spec
1282 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1286 struct user_specs
*next
;
1287 const char *filename
;
1290 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1293 /* Record the mapping from file suffixes for compilation specs. */
1297 const char *suffix
; /* Use this compiler for input files
1298 whose names end in this suffix. */
1300 const char *spec
; /* To use this compiler, run this spec. */
1302 const char *cpp_spec
; /* If non-NULL, substitute this spec
1303 for `%C', rather than the usual
1305 int combinable
; /* If nonzero, compiler can deal with
1306 multiple source files at once (IMA). */
1307 int needs_preprocessing
; /* If nonzero, source files need to
1308 be run through a preprocessor. */
1311 /* Pointer to a vector of `struct compiler' that gives the spec for
1312 compiling a file, based on its suffix.
1313 A file that does not end in any of these suffixes will be passed
1314 unchanged to the loader and nothing else will be done to it.
1316 An entry containing two 0s is used to terminate the vector.
1318 If multiple entries match a file, the last matching one is used. */
1320 static struct compiler
*compilers
;
1322 /* Number of entries in `compilers', not counting the null terminator. */
1324 static int n_compilers
;
1326 /* The default list of file name suffixes and their compilation specs. */
1328 static const struct compiler default_compilers
[] =
1330 /* Add lists of suffixes of known languages here. If those languages
1331 were not present when we built the driver, we will hit these copies
1332 and be given a more meaningful error than "file not used since
1333 linking is not done". */
1334 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1335 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1336 {".mii", "#Objective-C++", 0, 0, 0},
1337 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1338 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1339 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1340 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1341 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1342 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1343 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1344 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1345 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1346 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1347 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1348 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1349 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1350 {".r", "#Ratfor", 0, 0, 0},
1351 {".go", "#Go", 0, 1, 0},
1352 {".d", "#D", 0, 1, 0}, {".dd", "#D", 0, 1, 0}, {".di", "#D", 0, 1, 0},
1353 /* Next come the entries for C. */
1354 {".c", "@c", 0, 0, 1},
1356 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1357 external preprocessor if -save-temps is given. */
1358 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1361 %eGNU C no longer supports -traditional without -E}\
1362 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1363 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1364 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1366 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1367 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1368 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1370 "%{!E:%e-E or -x required when input is from standard input}\
1371 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1372 {".h", "@c-header", 0, 0, 0},
1374 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1375 external preprocessor if -save-temps is given. */
1376 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1378 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1379 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1380 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1382 %{!fsyntax-only:%{!S:-o %g.s} \
1383 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1384 %W{o*:--output-pch=%*}}%V}}\
1385 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1386 cc1 %(cpp_unique_options) %(cc1_options)\
1387 %{!fsyntax-only:%{!S:-o %g.s} \
1388 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1389 %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
1390 {".i", "@cpp-output", 0, 0, 0},
1392 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1393 {".s", "@assembler", 0, 0, 0},
1395 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1396 {".sx", "@assembler-with-cpp", 0, 0, 0},
1397 {".S", "@assembler-with-cpp", 0, 0, 0},
1398 {"@assembler-with-cpp",
1399 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1400 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1401 %{E|M|MM:%(cpp_debug_options)}\
1402 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1403 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1405 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1406 %{E|M|MM:%(cpp_debug_options)}\
1407 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1408 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1413 /* Mark end of table. */
1417 /* Number of elements in default_compilers, not counting the terminator. */
1419 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1421 typedef char *char_p
; /* For DEF_VEC_P. */
1423 /* A vector of options to give to the linker.
1424 These options are accumulated by %x,
1425 and substituted into the linker command with %X. */
1426 static vec
<char_p
> linker_options
;
1428 /* A vector of options to give to the assembler.
1429 These options are accumulated by -Wa,
1430 and substituted into the assembler command with %Y. */
1431 static vec
<char_p
> assembler_options
;
1433 /* A vector of options to give to the preprocessor.
1434 These options are accumulated by -Wp,
1435 and substituted into the preprocessor command with %Z. */
1436 static vec
<char_p
> preprocessor_options
;
1439 skip_whitespace (char *p
)
1443 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1444 be considered whitespace. */
1445 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1447 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1461 /* Structures to keep track of prefixes to try when looking for files. */
1465 const char *prefix
; /* String to prepend to the path. */
1466 struct prefix_list
*next
; /* Next in linked list. */
1467 int require_machine_suffix
; /* Don't use without machine_suffix. */
1468 /* 2 means try both machine_suffix and just_machine_suffix. */
1469 int priority
; /* Sort key - priority within list. */
1470 int os_multilib
; /* 1 if OS multilib scheme should be used,
1471 0 for GCC multilib scheme. */
1476 struct prefix_list
*plist
; /* List of prefixes to try */
1477 int max_len
; /* Max length of a prefix in PLIST */
1478 const char *name
; /* Name of this list (used in config stuff) */
1481 /* List of prefixes to try when looking for executables. */
1483 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1485 /* List of prefixes to try when looking for startup (crt0) files. */
1487 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1489 /* List of prefixes to try when looking for include files. */
1491 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1493 /* Suffix to attach to directories searched for commands.
1494 This looks like `MACHINE/VERSION/'. */
1496 static const char *machine_suffix
= 0;
1498 /* Suffix to attach to directories searched for commands.
1499 This is just `MACHINE/'. */
1501 static const char *just_machine_suffix
= 0;
1503 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1505 static const char *gcc_exec_prefix
;
1507 /* Adjusted value of standard_libexec_prefix. */
1509 static const char *gcc_libexec_prefix
;
1511 /* Default prefixes to attach to command names. */
1513 #ifndef STANDARD_STARTFILE_PREFIX_1
1514 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1516 #ifndef STANDARD_STARTFILE_PREFIX_2
1517 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1520 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1521 #undef MD_EXEC_PREFIX
1522 #undef MD_STARTFILE_PREFIX
1523 #undef MD_STARTFILE_PREFIX_1
1526 /* If no prefixes defined, use the null string, which will disable them. */
1527 #ifndef MD_EXEC_PREFIX
1528 #define MD_EXEC_PREFIX ""
1530 #ifndef MD_STARTFILE_PREFIX
1531 #define MD_STARTFILE_PREFIX ""
1533 #ifndef MD_STARTFILE_PREFIX_1
1534 #define MD_STARTFILE_PREFIX_1 ""
1537 /* These directories are locations set at configure-time based on the
1538 --prefix option provided to configure. Their initializers are
1539 defined in Makefile.in. These paths are not *directly* used when
1540 gcc_exec_prefix is set because, in that case, we know where the
1541 compiler has been installed, and use paths relative to that
1542 location instead. */
1543 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1544 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1545 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1546 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1548 /* For native compilers, these are well-known paths containing
1549 components that may be provided by the system. For cross
1550 compilers, these paths are not used. */
1551 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1552 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1553 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1554 static const char *const standard_startfile_prefix_1
1555 = STANDARD_STARTFILE_PREFIX_1
;
1556 static const char *const standard_startfile_prefix_2
1557 = STANDARD_STARTFILE_PREFIX_2
;
1559 /* A relative path to be used in finding the location of tools
1560 relative to the driver. */
1561 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1563 /* A prefix to be used when this is an accelerator compiler. */
1564 static const char *const accel_dir_suffix
= ACCEL_DIR_SUFFIX
;
1566 /* Subdirectory to use for locating libraries. Set by
1567 set_multilib_dir based on the compilation options. */
1569 static const char *multilib_dir
;
1571 /* Subdirectory to use for locating libraries in OS conventions. Set by
1572 set_multilib_dir based on the compilation options. */
1574 static const char *multilib_os_dir
;
1576 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1577 set_multilib_dir based on the compilation options. */
1579 static const char *multiarch_dir
;
1581 /* Structure to keep track of the specs that have been defined so far.
1582 These are accessed using %(specname) in a compiler or link
1587 /* The following 2 fields must be first */
1588 /* to allow EXTRA_SPECS to be initialized */
1589 const char *name
; /* name of the spec. */
1590 const char *ptr
; /* available ptr if no static pointer */
1592 /* The following fields are not initialized */
1593 /* by EXTRA_SPECS */
1594 const char **ptr_spec
; /* pointer to the spec itself. */
1595 struct spec_list
*next
; /* Next spec in linked list. */
1596 int name_len
; /* length of the name */
1597 bool user_p
; /* whether string come from file spec. */
1598 bool alloc_p
; /* whether string was allocated */
1599 const char *default_ptr
; /* The default value of *ptr_spec. */
1602 #define INIT_STATIC_SPEC(NAME,PTR) \
1603 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false, \
1606 /* List of statically defined specs. */
1607 static struct spec_list static_specs
[] =
1609 INIT_STATIC_SPEC ("asm", &asm_spec
),
1610 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1611 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1612 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1613 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1614 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1615 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1616 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1617 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1618 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1619 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1620 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1621 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1622 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1623 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1624 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1625 INIT_STATIC_SPEC ("link", &link_spec
),
1626 INIT_STATIC_SPEC ("lib", &lib_spec
),
1627 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1628 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1629 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1630 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1631 INIT_STATIC_SPEC ("version", &compiler_version
),
1632 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1633 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1634 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1635 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1636 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1637 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1638 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1639 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1640 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1641 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1642 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1643 INIT_STATIC_SPEC ("post_link", &post_link_spec
),
1644 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1645 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1646 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1647 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1648 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1649 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1650 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1651 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1652 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1655 #ifdef EXTRA_SPECS /* additional specs needed */
1656 /* Structure to keep track of just the first two args of a spec_list.
1657 That is all that the EXTRA_SPECS macro gives us. */
1660 const char *const name
;
1661 const char *const ptr
;
1664 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1665 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1668 /* List of dynamically allocates specs that have been defined so far. */
1670 static struct spec_list
*specs
= (struct spec_list
*) 0;
1672 /* List of static spec functions. */
1674 static const struct spec_function static_spec_functions
[] =
1676 { "getenv", getenv_spec_function
},
1677 { "if-exists", if_exists_spec_function
},
1678 { "if-exists-else", if_exists_else_spec_function
},
1679 { "sanitize", sanitize_spec_function
},
1680 { "replace-outfile", replace_outfile_spec_function
},
1681 { "remove-outfile", remove_outfile_spec_function
},
1682 { "version-compare", version_compare_spec_function
},
1683 { "include", include_spec_function
},
1684 { "find-file", find_file_spec_function
},
1685 { "find-plugindir", find_plugindir_spec_function
},
1686 { "print-asm-header", print_asm_header_spec_function
},
1687 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1688 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1689 { "pass-through-libs", pass_through_libs_spec_func
},
1690 { "dumps", dumps_spec_func
},
1691 { "gt", greater_than_spec_func
},
1692 { "debug-level-gt", debug_level_greater_than_spec_func
},
1693 { "fortran-preinclude-file", find_fortran_preinclude_file
},
1694 #ifdef EXTRA_SPEC_FUNCTIONS
1695 EXTRA_SPEC_FUNCTIONS
1700 static int processing_spec_function
;
1702 /* Add appropriate libgcc specs to OBSTACK, taking into account
1703 various permutations of -shared-libgcc, -shared, and such. */
1705 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1707 #ifndef USE_LD_AS_NEEDED
1708 #define USE_LD_AS_NEEDED 0
1712 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1713 const char *static_name
, const char *eh_name
)
1717 #if USE_LD_AS_NEEDED
1718 buf
= concat ("%{static|static-libgcc|static-pie:", static_name
, " ", eh_name
, "}"
1719 "%{!static:%{!static-libgcc:%{!static-pie:"
1720 "%{!shared-libgcc:",
1721 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1722 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1725 shared_name
, "%{!shared: ", static_name
, "}"
1728 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1729 "%{!static:%{!static-libgcc:"
1731 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1732 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1736 "%{shared-libgcc:", shared_name
, "}"
1737 "%{!shared-libgcc:", static_name
, "}"
1740 "%{shared:", shared_name
, "}"
1745 obstack_grow (obstack
, buf
, strlen (buf
));
1748 #endif /* ENABLE_SHARED_LIBGCC */
1750 /* Initialize the specs lookup routines. */
1755 struct spec_list
*next
= (struct spec_list
*) 0;
1756 struct spec_list
*sl
= (struct spec_list
*) 0;
1760 return; /* Already initialized. */
1763 fnotice (stderr
, "Using built-in specs.\n");
1766 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1768 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1770 sl
= &extra_specs
[i
];
1771 sl
->name
= extra_specs_1
[i
].name
;
1772 sl
->ptr
= extra_specs_1
[i
].ptr
;
1774 sl
->name_len
= strlen (sl
->name
);
1775 sl
->ptr_spec
= &sl
->ptr
;
1776 gcc_assert (sl
->ptr_spec
!= NULL
);
1777 sl
->default_ptr
= sl
->ptr
;
1782 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1784 sl
= &static_specs
[i
];
1789 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1790 /* ??? If neither -shared-libgcc nor --static-libgcc was
1791 seen, then we should be making an educated guess. Some proposed
1792 heuristics for ELF include:
1794 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1795 program will be doing dynamic loading, which will likely
1796 need the shared libgcc.
1798 (2) If "-ldl", then it's also a fair bet that we're doing
1801 (3) For each ET_DYN we're linking against (either through -lfoo
1802 or /some/path/foo.so), check to see whether it or one of
1803 its dependencies depends on a shared libgcc.
1807 If the runtime is fixed to look for program headers instead
1808 of calling __register_frame_info at all, for each object,
1809 use the shared libgcc if any EH symbol referenced.
1811 If crtstuff is fixed to not invoke __register_frame_info
1812 automatically, for each object, use the shared libgcc if
1813 any non-empty unwind section found.
1815 Doing any of this probably requires invoking an external program to
1816 do the actual object file scanning. */
1818 const char *p
= libgcc_spec
;
1821 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1822 when given the proper command line arguments. */
1825 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1827 init_gcc_specs (&obstack
,
1829 #ifdef USE_LIBUNWIND_EXCEPTIONS
1835 #ifdef USE_LIBUNWIND_EXCEPTIONS
1836 # ifdef HAVE_LD_STATIC_DYNAMIC
1837 " %{!static:%{!static-pie:" LD_STATIC_OPTION
"}} -lunwind"
1838 " %{!static:%{!static-pie:" LD_DYNAMIC_OPTION
"}}"
1848 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1850 /* Ug. We don't know shared library extensions. Hope that
1851 systems that use this form don't do shared libraries. */
1852 init_gcc_specs (&obstack
,
1856 #ifdef USE_LIBUNWIND_EXCEPTIONS
1865 obstack_1grow (&obstack
, *p
);
1866 in_sep
= (*p
== ' ');
1871 obstack_1grow (&obstack
, '\0');
1872 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1875 #ifdef USE_AS_TRADITIONAL_FORMAT
1876 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1878 static const char tf
[] = "--traditional-format ";
1879 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1880 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1881 asm_spec
= XOBFINISH (&obstack
, const char *);
1885 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1886 defined LINKER_HASH_STYLE
1887 # ifdef LINK_BUILDID_SPEC
1888 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1889 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1891 # ifdef LINK_EH_SPEC
1892 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1893 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1895 # ifdef LINKER_HASH_STYLE
1896 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1899 static const char hash_style
[] = "--hash-style=";
1900 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1901 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1902 obstack_1grow (&obstack
, ' ');
1905 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1906 link_spec
= XOBFINISH (&obstack
, const char *);
1912 /* Update the entry for SPEC in the static_specs table to point to VALUE,
1913 ensuring that we free the previous value if necessary. Set alloc_p for the
1914 entry to ALLOC_P: this determines whether we take ownership of VALUE (i.e.
1915 whether we need to free it later on). */
1917 set_static_spec (const char **spec
, const char *value
, bool alloc_p
)
1919 struct spec_list
*sl
= NULL
;
1921 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
1923 if (static_specs
[i
].ptr_spec
== spec
)
1925 sl
= static_specs
+ i
;
1934 const char *old
= *spec
;
1935 free (const_cast <char *> (old
));
1939 sl
->alloc_p
= alloc_p
;
1942 /* Update a static spec to a new string, taking ownership of that
1944 static void set_static_spec_owned (const char **spec
, const char *val
)
1946 return set_static_spec (spec
, val
, true);
1949 /* Update a static spec to point to a new value, but don't take
1950 ownership of (i.e. don't free) that string. */
1951 static void set_static_spec_shared (const char **spec
, const char *val
)
1953 return set_static_spec (spec
, val
, false);
1957 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1958 removed; If the spec starts with a + then SPEC is added to the end of the
1962 set_spec (const char *name
, const char *spec
, bool user_p
)
1964 struct spec_list
*sl
;
1965 const char *old_spec
;
1966 int name_len
= strlen (name
);
1969 /* If this is the first call, initialize the statically allocated specs. */
1972 struct spec_list
*next
= (struct spec_list
*) 0;
1973 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1975 sl
= &static_specs
[i
];
1982 /* See if the spec already exists. */
1983 for (sl
= specs
; sl
; sl
= sl
->next
)
1984 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1989 /* Not found - make it. */
1990 sl
= XNEW (struct spec_list
);
1991 sl
->name
= xstrdup (name
);
1992 sl
->name_len
= name_len
;
1993 sl
->ptr_spec
= &sl
->ptr
;
1995 *(sl
->ptr_spec
) = "";
1997 sl
->default_ptr
= NULL
;
2001 old_spec
= *(sl
->ptr_spec
);
2002 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
2003 ? concat (old_spec
, spec
+ 1, NULL
)
2008 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
2011 /* Free the old spec. */
2012 if (old_spec
&& sl
->alloc_p
)
2013 free (CONST_CAST (char *, old_spec
));
2015 sl
->user_p
= user_p
;
2019 /* Accumulate a command (program name and args), and run it. */
2021 typedef const char *const_char_p
; /* For DEF_VEC_P. */
2023 /* Vector of pointers to arguments in the current line of specifications. */
2024 static vec
<const_char_p
> argbuf
;
2026 /* Likewise, but for the current @file. */
2027 static vec
<const_char_p
> at_file_argbuf
;
2029 /* Whether an @file is currently open. */
2030 static bool in_at_file
= false;
2032 /* Were the options -c, -S or -E passed. */
2033 static int have_c
= 0;
2035 /* Was the option -o passed. */
2036 static int have_o
= 0;
2038 /* Was the option -E passed. */
2039 static int have_E
= 0;
2041 /* Pointer to output file name passed in with -o. */
2042 static const char *output_file
= 0;
2044 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
2045 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2048 static struct temp_name
{
2049 const char *suffix
; /* suffix associated with the code. */
2050 int length
; /* strlen (suffix). */
2051 int unique
; /* Indicates whether %g or %u/%U was used. */
2052 const char *filename
; /* associated filename. */
2053 int filename_length
; /* strlen (filename). */
2054 struct temp_name
*next
;
2057 /* Number of commands executed so far. */
2059 static int execution_count
;
2061 /* Number of commands that exited with a signal. */
2063 static int signal_count
;
2065 /* Allocate the argument vector. */
2071 at_file_argbuf
.create (10);
2074 /* Clear out the vector of arguments (after a command is executed). */
2079 argbuf
.truncate (0);
2080 at_file_argbuf
.truncate (0);
2083 /* Add one argument to the vector at the end.
2084 This is done when a space is seen or at the end of the line.
2085 If DELETE_ALWAYS is nonzero, the arg is a filename
2086 and the file should be deleted eventually.
2087 If DELETE_FAILURE is nonzero, the arg is a filename
2088 and the file should be deleted if this compilation fails. */
2091 store_arg (const char *arg
, int delete_always
, int delete_failure
)
2094 at_file_argbuf
.safe_push (arg
);
2096 argbuf
.safe_push (arg
);
2098 if (delete_always
|| delete_failure
)
2101 /* If the temporary file we should delete is specified as
2102 part of a joined argument extract the filename. */
2104 && (p
= strrchr (arg
, '=')))
2106 record_temp_file (arg
, delete_always
, delete_failure
);
2110 /* Open a temporary @file into which subsequent arguments will be stored. */
2116 fatal_error (input_location
, "cannot open nested response file");
2121 /* Close the temporary @file and add @file to the argument list. */
2124 close_at_file (void)
2127 fatal_error (input_location
, "cannot close nonexistent response file");
2131 const unsigned int n_args
= at_file_argbuf
.length ();
2135 char **argv
= (char **) alloca (sizeof (char *) * (n_args
+ 1));
2136 char *temp_file
= make_temp_file ("");
2137 char *at_argument
= concat ("@", temp_file
, NULL
);
2138 FILE *f
= fopen (temp_file
, "w");
2142 /* Copy the strings over. */
2143 for (i
= 0; i
< n_args
; i
++)
2144 argv
[i
] = CONST_CAST (char *, at_file_argbuf
[i
]);
2147 at_file_argbuf
.truncate (0);
2150 fatal_error (input_location
, "could not open temporary response file %s",
2153 status
= writeargv (argv
, f
);
2156 fatal_error (input_location
,
2157 "could not write to temporary response file %s",
2160 status
= fclose (f
);
2163 fatal_error (input_location
, "could not close temporary response file %s",
2166 store_arg (at_argument
, 0, 0);
2168 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
2171 /* Load specs from a file name named FILENAME, replacing occurrences of
2172 various different types of line-endings, \r\n, \n\r and just \r, with
2176 load_specs (const char *filename
)
2180 struct stat statbuf
;
2187 fnotice (stderr
, "Reading specs from %s\n", filename
);
2189 /* Open and stat the file. */
2190 desc
= open (filename
, O_RDONLY
, 0);
2194 /* This leaves DESC open, but the OS will save us. */
2195 fatal_error (input_location
, "cannot read spec file %qs: %m", filename
);
2198 if (stat (filename
, &statbuf
) < 0)
2201 /* Read contents of file into BUFFER. */
2202 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2203 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2206 buffer
[readlen
] = 0;
2209 specs
= XNEWVEC (char, readlen
+ 1);
2211 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2217 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2219 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2233 /* Read compilation specs from a file named FILENAME,
2234 replacing the default ones.
2236 A suffix which starts with `*' is a definition for
2237 one of the machine-specific sub-specs. The "suffix" should be
2238 *asm, *cc1, *cpp, *link, *startfile, etc.
2239 The corresponding spec is stored in asm_spec, etc.,
2240 rather than in the `compilers' vector.
2242 Anything invalid in the file is a fatal error. */
2245 read_specs (const char *filename
, bool main_p
, bool user_p
)
2250 buffer
= load_specs (filename
);
2252 /* Scan BUFFER for specs, putting them in the vector. */
2258 char *in
, *out
, *p1
, *p2
, *p3
;
2260 /* Advance P in BUFFER to the next nonblank nocomment line. */
2261 p
= skip_whitespace (p
);
2265 /* Is this a special command that starts with '%'? */
2266 /* Don't allow this for the main specs file, since it would
2267 encourage people to overwrite it. */
2268 if (*p
== '%' && !main_p
)
2271 while (*p
&& *p
!= '\n')
2277 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2278 && (p1
[sizeof "%include" - 1] == ' '
2279 || p1
[sizeof "%include" - 1] == '\t'))
2283 p1
+= sizeof ("%include");
2284 while (*p1
== ' ' || *p1
== '\t')
2287 if (*p1
++ != '<' || p
[-2] != '>')
2288 fatal_error (input_location
,
2289 "specs %%include syntax malformed after "
2291 (long) (p1
- buffer
+ 1));
2294 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2295 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
2298 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2299 && (p1
[sizeof "%include_noerr" - 1] == ' '
2300 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2304 p1
+= sizeof "%include_noerr";
2305 while (*p1
== ' ' || *p1
== '\t')
2308 if (*p1
++ != '<' || p
[-2] != '>')
2309 fatal_error (input_location
,
2310 "specs %%include syntax malformed after "
2312 (long) (p1
- buffer
+ 1));
2315 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2317 read_specs (new_filename
, false, user_p
);
2318 else if (verbose_flag
)
2319 fnotice (stderr
, "could not find specs file %s\n", p1
);
2322 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2323 && (p1
[sizeof "%rename" - 1] == ' '
2324 || p1
[sizeof "%rename" - 1] == '\t'))
2327 struct spec_list
*sl
;
2328 struct spec_list
*newsl
;
2330 /* Get original name. */
2331 p1
+= sizeof "%rename";
2332 while (*p1
== ' ' || *p1
== '\t')
2335 if (! ISALPHA ((unsigned char) *p1
))
2336 fatal_error (input_location
,
2337 "specs %%rename syntax malformed after "
2339 (long) (p1
- buffer
));
2342 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2345 if (*p2
!= ' ' && *p2
!= '\t')
2346 fatal_error (input_location
,
2347 "specs %%rename syntax malformed after "
2349 (long) (p2
- buffer
));
2353 while (*p2
== ' ' || *p2
== '\t')
2356 if (! ISALPHA ((unsigned char) *p2
))
2357 fatal_error (input_location
,
2358 "specs %%rename syntax malformed after "
2360 (long) (p2
- buffer
));
2362 /* Get new spec name. */
2364 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2368 fatal_error (input_location
,
2369 "specs %%rename syntax malformed after "
2371 (long) (p3
- buffer
));
2374 for (sl
= specs
; sl
; sl
= sl
->next
)
2375 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2379 fatal_error (input_location
,
2380 "specs %s spec was not found to be renamed", p1
);
2382 if (strcmp (p1
, p2
) == 0)
2385 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2386 if (strcmp (newsl
->name
, p2
) == 0)
2387 fatal_error (input_location
,
2388 "%s: attempt to rename spec %qs to "
2389 "already defined spec %qs",
2394 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
2396 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2400 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2402 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2404 *(sl
->ptr_spec
) = "";
2409 fatal_error (input_location
,
2410 "specs unknown %% command after %ld characters",
2411 (long) (p1
- buffer
));
2414 /* Find the colon that should end the suffix. */
2416 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2419 /* The colon shouldn't be missing. */
2421 fatal_error (input_location
,
2422 "specs file malformed after %ld characters",
2423 (long) (p1
- buffer
));
2425 /* Skip back over trailing whitespace. */
2427 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2430 /* Copy the suffix to a string. */
2431 suffix
= save_string (p
, p2
- p
);
2432 /* Find the next line. */
2433 p
= skip_whitespace (p1
+ 1);
2435 fatal_error (input_location
,
2436 "specs file malformed after %ld characters",
2437 (long) (p
- buffer
));
2440 /* Find next blank line or end of string. */
2441 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2444 /* Specs end at the blank line and do not include the newline. */
2445 spec
= save_string (p
, p1
- p
);
2448 /* Delete backslash-newline sequences from the spec. */
2453 if (in
[0] == '\\' && in
[1] == '\n')
2455 else if (in
[0] == '#')
2456 while (*in
&& *in
!= '\n')
2464 if (suffix
[0] == '*')
2466 if (! strcmp (suffix
, "*link_command"))
2467 link_command_spec
= spec
;
2470 set_spec (suffix
+ 1, spec
, user_p
);
2476 /* Add this pair to the vector. */
2478 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2480 compilers
[n_compilers
].suffix
= suffix
;
2481 compilers
[n_compilers
].spec
= spec
;
2483 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2487 link_command_spec
= spec
;
2490 if (link_command_spec
== 0)
2491 fatal_error (input_location
, "spec file has no spec for linking");
2493 XDELETEVEC (buffer
);
2496 /* Record the names of temporary files we tell compilers to write,
2497 and delete them at the end of the run. */
2499 /* This is the common prefix we use to make temp file names.
2500 It is chosen once for each run of this program.
2501 It is substituted into a spec by %g or %j.
2502 Thus, all temp file names contain this prefix.
2503 In practice, all temp file names start with this prefix.
2505 This prefix comes from the envvar TMPDIR if it is defined;
2506 otherwise, from the P_tmpdir macro if that is defined;
2507 otherwise, in /usr/tmp or /tmp;
2508 or finally the current directory if all else fails. */
2510 static const char *temp_filename
;
2512 /* Length of the prefix. */
2514 static int temp_filename_length
;
2516 /* Define the list of temporary files to delete. */
2521 struct temp_file
*next
;
2524 /* Queue of files to delete on success or failure of compilation. */
2525 static struct temp_file
*always_delete_queue
;
2526 /* Queue of files to delete on failure of compilation. */
2527 static struct temp_file
*failure_delete_queue
;
2529 /* Record FILENAME as a file to be deleted automatically.
2530 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2531 otherwise delete it in any case.
2532 FAIL_DELETE nonzero means delete it if a compilation step fails;
2533 otherwise delete it in any case. */
2536 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2538 char *const name
= xstrdup (filename
);
2542 struct temp_file
*temp
;
2543 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2544 if (! filename_cmp (name
, temp
->name
))
2550 temp
= XNEW (struct temp_file
);
2551 temp
->next
= always_delete_queue
;
2553 always_delete_queue
= temp
;
2560 struct temp_file
*temp
;
2561 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2562 if (! filename_cmp (name
, temp
->name
))
2568 temp
= XNEW (struct temp_file
);
2569 temp
->next
= failure_delete_queue
;
2571 failure_delete_queue
= temp
;
2577 /* Delete all the temporary files whose names we previously recorded. */
2579 #ifndef DELETE_IF_ORDINARY
2580 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2583 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2584 if (unlink (NAME) < 0) \
2586 error ("%s: %m", (NAME)); \
2591 delete_if_ordinary (const char *name
)
2597 printf ("Delete %s? (y or n) ", name
);
2601 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2604 if (i
== 'y' || i
== 'Y')
2606 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2610 delete_temp_files (void)
2612 struct temp_file
*temp
;
2614 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2615 delete_if_ordinary (temp
->name
);
2616 always_delete_queue
= 0;
2619 /* Delete all the files to be deleted on error. */
2622 delete_failure_queue (void)
2624 struct temp_file
*temp
;
2626 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2627 delete_if_ordinary (temp
->name
);
2631 clear_failure_queue (void)
2633 failure_delete_queue
= 0;
2636 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2638 If DO_MULTI is true iterate over the paths twice, first with multilib
2639 suffix then without, otherwise iterate over the paths once without
2640 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2641 to avoid visiting the same path twice, but we could do better. For
2642 instance, /usr/lib/../lib is considered different from /usr/lib.
2643 At least EXTRA_SPACE chars past the end of the path passed to
2644 CALLBACK are available for use by the callback.
2645 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2647 Returns the value returned by CALLBACK. */
2650 for_each_path (const struct path_prefix
*paths
,
2653 void *(*callback
) (char *, void *),
2654 void *callback_info
)
2656 struct prefix_list
*pl
;
2657 const char *multi_dir
= NULL
;
2658 const char *multi_os_dir
= NULL
;
2659 const char *multiarch_suffix
= NULL
;
2660 const char *multi_suffix
;
2661 const char *just_multi_suffix
;
2664 bool skip_multi_dir
= false;
2665 bool skip_multi_os_dir
= false;
2667 multi_suffix
= machine_suffix
;
2668 just_multi_suffix
= just_machine_suffix
;
2669 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2671 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2672 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2673 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2675 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2676 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2678 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2682 size_t multi_dir_len
= 0;
2683 size_t multi_os_dir_len
= 0;
2684 size_t multiarch_len
= 0;
2686 size_t just_suffix_len
;
2690 multi_dir_len
= strlen (multi_dir
);
2692 multi_os_dir_len
= strlen (multi_os_dir
);
2693 if (multiarch_suffix
)
2694 multiarch_len
= strlen (multiarch_suffix
);
2695 suffix_len
= strlen (multi_suffix
);
2696 just_suffix_len
= strlen (just_multi_suffix
);
2700 len
= paths
->max_len
+ extra_space
+ 1;
2701 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2702 path
= XNEWVEC (char, len
);
2705 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2707 len
= strlen (pl
->prefix
);
2708 memcpy (path
, pl
->prefix
, len
);
2710 /* Look first in MACHINE/VERSION subdirectory. */
2711 if (!skip_multi_dir
)
2713 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2714 ret
= callback (path
, callback_info
);
2719 /* Some paths are tried with just the machine (ie. target)
2720 subdir. This is used for finding as, ld, etc. */
2722 && pl
->require_machine_suffix
== 2)
2724 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2725 ret
= callback (path
, callback_info
);
2730 /* Now try the multiarch path. */
2732 && !pl
->require_machine_suffix
&& multiarch_dir
)
2734 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2735 ret
= callback (path
, callback_info
);
2740 /* Now try the base path. */
2741 if (!pl
->require_machine_suffix
2742 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2744 const char *this_multi
;
2745 size_t this_multi_len
;
2747 if (pl
->os_multilib
)
2749 this_multi
= multi_os_dir
;
2750 this_multi_len
= multi_os_dir_len
;
2754 this_multi
= multi_dir
;
2755 this_multi_len
= multi_dir_len
;
2759 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2763 ret
= callback (path
, callback_info
);
2771 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2774 /* Run through the paths again, this time without multilibs.
2775 Don't repeat any we have already seen. */
2778 free (CONST_CAST (char *, multi_dir
));
2780 free (CONST_CAST (char *, multi_suffix
));
2781 multi_suffix
= machine_suffix
;
2782 free (CONST_CAST (char *, just_multi_suffix
));
2783 just_multi_suffix
= just_machine_suffix
;
2786 skip_multi_dir
= true;
2789 free (CONST_CAST (char *, multi_os_dir
));
2790 multi_os_dir
= NULL
;
2793 skip_multi_os_dir
= true;
2798 free (CONST_CAST (char *, multi_dir
));
2799 free (CONST_CAST (char *, multi_suffix
));
2800 free (CONST_CAST (char *, just_multi_suffix
));
2803 free (CONST_CAST (char *, multi_os_dir
));
2809 /* Callback for build_search_list. Adds path to obstack being built. */
2811 struct add_to_obstack_info
{
2818 add_to_obstack (char *path
, void *data
)
2820 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2822 if (info
->check_dir
&& !is_directory (path
, false))
2825 if (!info
->first_time
)
2826 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2828 obstack_grow (info
->ob
, path
, strlen (path
));
2830 info
->first_time
= false;
2834 /* Add or change the value of an environment variable, outputting the
2835 change to standard error if in verbose mode. */
2837 xputenv (const char *string
)
2842 /* Build a list of search directories from PATHS.
2843 PREFIX is a string to prepend to the list.
2844 If CHECK_DIR_P is true we ensure the directory exists.
2845 If DO_MULTI is true, multilib paths are output first, then
2847 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2848 It is also used by the --print-search-dirs flag. */
2851 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2852 bool check_dir
, bool do_multi
)
2854 struct add_to_obstack_info info
;
2856 info
.ob
= &collect_obstack
;
2857 info
.check_dir
= check_dir
;
2858 info
.first_time
= true;
2860 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2861 obstack_1grow (&collect_obstack
, '=');
2863 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2865 obstack_1grow (&collect_obstack
, '\0');
2866 return XOBFINISH (&collect_obstack
, char *);
2869 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2873 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2876 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2879 /* Check whether NAME can be accessed in MODE. This is like access,
2880 except that it never considers directories to be executable. */
2883 access_check (const char *name
, int mode
)
2889 if (stat (name
, &st
) < 0
2890 || S_ISDIR (st
.st_mode
))
2894 return access (name
, mode
);
2897 /* Callback for find_a_file. Appends the file name to the directory
2898 path. If the resulting file exists in the right mode, return the
2899 full pathname to the file. */
2901 struct file_at_path_info
{
2910 file_at_path (char *path
, void *data
)
2912 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2913 size_t len
= strlen (path
);
2915 memcpy (path
+ len
, info
->name
, info
->name_len
);
2916 len
+= info
->name_len
;
2918 /* Some systems have a suffix for executable files.
2919 So try appending that first. */
2920 if (info
->suffix_len
)
2922 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2923 if (access_check (path
, info
->mode
) == 0)
2928 if (access_check (path
, info
->mode
) == 0)
2934 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2935 access to check permissions. If DO_MULTI is true, search multilib
2936 paths then non-multilib paths, otherwise do not search multilib paths.
2937 Return 0 if not found, otherwise return its name, allocated with malloc. */
2940 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2943 struct file_at_path_info info
;
2945 #ifdef DEFAULT_ASSEMBLER
2946 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2947 return xstrdup (DEFAULT_ASSEMBLER
);
2950 #ifdef DEFAULT_LINKER
2951 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2952 return xstrdup (DEFAULT_LINKER
);
2955 /* Determine the filename to execute (special case for absolute paths). */
2957 if (IS_ABSOLUTE_PATH (name
))
2959 if (access (name
, mode
) == 0)
2960 return xstrdup (name
);
2966 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2967 info
.name_len
= strlen (info
.name
);
2968 info
.suffix_len
= strlen (info
.suffix
);
2971 return (char*) for_each_path (pprefix
, do_multi
,
2972 info
.name_len
+ info
.suffix_len
,
2973 file_at_path
, &info
);
2976 /* Ranking of prefixes in the sort list. -B prefixes are put before
2979 enum path_prefix_priority
2981 PREFIX_PRIORITY_B_OPT
,
2982 PREFIX_PRIORITY_LAST
2985 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2986 order according to PRIORITY. Within each PRIORITY, new entries are
2989 If WARN is nonzero, we will warn if no file is found
2990 through this prefix. WARN should point to an int
2991 which will be set to 1 if this entry is used.
2993 COMPONENT is the value to be passed to update_path.
2995 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2996 the complete value of machine_suffix.
2997 2 means try both machine_suffix and just_machine_suffix. */
3000 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
3001 const char *component
, /* enum prefix_priority */ int priority
,
3002 int require_machine_suffix
, int os_multilib
)
3004 struct prefix_list
*pl
, **prev
;
3007 for (prev
= &pprefix
->plist
;
3008 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
3009 prev
= &(*prev
)->next
)
3012 /* Keep track of the longest prefix. */
3014 prefix
= update_path (prefix
, component
);
3015 len
= strlen (prefix
);
3016 if (len
> pprefix
->max_len
)
3017 pprefix
->max_len
= len
;
3019 pl
= XNEW (struct prefix_list
);
3020 pl
->prefix
= prefix
;
3021 pl
->require_machine_suffix
= require_machine_suffix
;
3022 pl
->priority
= priority
;
3023 pl
->os_multilib
= os_multilib
;
3025 /* Insert after PREV. */
3030 /* Same as add_prefix, but prepending target_system_root to prefix. */
3031 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
3033 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
3034 const char *component
,
3035 /* enum prefix_priority */ int priority
,
3036 int require_machine_suffix
, int os_multilib
)
3038 if (!IS_ABSOLUTE_PATH (prefix
))
3039 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
3041 if (target_system_root
)
3043 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
3044 size_t sysroot_len
= strlen (target_system_root
);
3047 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
3048 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
3050 if (target_sysroot_suffix
)
3051 prefix
= concat (sysroot_no_trailing_dir_separator
,
3052 target_sysroot_suffix
, prefix
, NULL
);
3054 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
3056 free (sysroot_no_trailing_dir_separator
);
3058 /* We have to override this because GCC's notion of sysroot
3059 moves along with GCC. */
3063 add_prefix (pprefix
, prefix
, component
, priority
,
3064 require_machine_suffix
, os_multilib
);
3067 /* Same as add_prefix, but prepending target_sysroot_hdrs_suffix to prefix. */
3070 add_sysrooted_hdrs_prefix (struct path_prefix
*pprefix
, const char *prefix
,
3071 const char *component
,
3072 /* enum prefix_priority */ int priority
,
3073 int require_machine_suffix
, int os_multilib
)
3075 if (!IS_ABSOLUTE_PATH (prefix
))
3076 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
3078 if (target_system_root
)
3080 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
3081 size_t sysroot_len
= strlen (target_system_root
);
3084 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
3085 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
3087 if (target_sysroot_hdrs_suffix
)
3088 prefix
= concat (sysroot_no_trailing_dir_separator
,
3089 target_sysroot_hdrs_suffix
, prefix
, NULL
);
3091 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
3093 free (sysroot_no_trailing_dir_separator
);
3095 /* We have to override this because GCC's notion of sysroot
3096 moves along with GCC. */
3100 add_prefix (pprefix
, prefix
, component
, priority
,
3101 require_machine_suffix
, os_multilib
);
3105 /* Execute the command specified by the arguments on the current line of spec.
3106 When using pipes, this includes several piped-together commands
3107 with `|' between them.
3109 Return 0 if successful, -1 if failed. */
3115 int n_commands
; /* # of command. */
3117 struct pex_obj
*pex
;
3120 const char *prog
; /* program name. */
3121 const char **argv
; /* vector of args. */
3125 struct command
*commands
; /* each command buffer with above info. */
3127 gcc_assert (!processing_spec_function
);
3131 string
= find_a_file (&exec_prefixes
,
3132 argbuf
[0], X_OK
, false);
3135 insert_wrapper (wrapper_string
);
3138 /* Count # of piped commands. */
3139 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
3140 if (strcmp (arg
, "|") == 0)
3143 /* Get storage for each command. */
3144 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
3146 /* Split argbuf into its separate piped processes,
3147 and record info about each one.
3148 Also search for the programs that are to be run. */
3150 argbuf
.safe_push (0);
3152 commands
[0].prog
= argbuf
[0]; /* first command. */
3153 commands
[0].argv
= argbuf
.address ();
3155 if (!wrapper_string
)
3157 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
3159 commands
[0].argv
[0] = string
;
3162 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
3163 if (arg
&& strcmp (arg
, "|") == 0)
3164 { /* each command. */
3165 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
3166 fatal_error (input_location
, "%<-pipe%> not supported");
3168 argbuf
[i
] = 0; /* Termination of command args. */
3169 commands
[n_commands
].prog
= argbuf
[i
+ 1];
3170 commands
[n_commands
].argv
3171 = &(argbuf
.address ())[i
+ 1];
3172 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
3175 commands
[n_commands
].argv
[0] = string
;
3179 /* If -v, print what we are about to do, and maybe query. */
3183 /* For help listings, put a blank line between sub-processes. */
3184 if (print_help_list
)
3185 fputc ('\n', stderr
);
3187 /* Print each piped command as a separate line. */
3188 for (i
= 0; i
< n_commands
; i
++)
3190 const char *const *j
;
3192 if (verbose_only_flag
)
3194 for (j
= commands
[i
].argv
; *j
; j
++)
3197 for (p
= *j
; *p
; ++p
)
3198 if (!ISALNUM ((unsigned char) *p
)
3199 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
3203 fprintf (stderr
, " \"");
3204 for (p
= *j
; *p
; ++p
)
3206 if (*p
== '"' || *p
== '\\' || *p
== '$')
3207 fputc ('\\', stderr
);
3210 fputc ('"', stderr
);
3212 /* If it's empty, print "". */
3214 fprintf (stderr
, " \"\"");
3216 fprintf (stderr
, " %s", *j
);
3220 for (j
= commands
[i
].argv
; *j
; j
++)
3221 /* If it's empty, print "". */
3223 fprintf (stderr
, " \"\"");
3225 fprintf (stderr
, " %s", *j
);
3227 /* Print a pipe symbol after all but the last command. */
3228 if (i
+ 1 != n_commands
)
3229 fprintf (stderr
, " |");
3230 fprintf (stderr
, "\n");
3233 if (verbose_only_flag
!= 0)
3235 /* verbose_only_flag should act as if the spec was
3236 executed, so increment execution_count before
3237 returning. This prevents spurious warnings about
3238 unused linker input files, etc. */
3243 fnotice (stderr
, "\nGo ahead? (y or n) ");
3247 while (getchar () != '\n')
3250 if (i
!= 'y' && i
!= 'Y')
3255 #ifdef ENABLE_VALGRIND_CHECKING
3256 /* Run the each command through valgrind. To simplify prepending the
3257 path to valgrind and the option "-q" (for quiet operation unless
3258 something triggers), we allocate a separate argv array. */
3260 for (i
= 0; i
< n_commands
; i
++)
3266 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3269 argv
= XALLOCAVEC (const char *, argc
+ 3);
3271 argv
[0] = VALGRIND_PATH
;
3273 for (j
= 2; j
< argc
+ 2; j
++)
3274 argv
[j
] = commands
[i
].argv
[j
- 2];
3277 commands
[i
].argv
= argv
;
3278 commands
[i
].prog
= argv
[0];
3282 /* Run each piped subprocess. */
3284 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3285 ? PEX_RECORD_TIMES
: 0),
3286 progname
, temp_filename
);
3288 fatal_error (input_location
, "%<pex_init%> failed: %m");
3290 for (i
= 0; i
< n_commands
; i
++)
3294 const char *string
= commands
[i
].argv
[0];
3296 errmsg
= pex_run (pex
,
3297 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3298 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3299 string
, CONST_CAST (char **, commands
[i
].argv
),
3304 fatal_error (input_location
,
3305 err
? G_("cannot execute %qs: %s: %m")
3306 : G_("cannot execute %qs: %s"),
3310 if (i
&& string
!= commands
[i
].prog
)
3311 free (CONST_CAST (char *, string
));
3316 /* Wait for all the subprocesses to finish. */
3320 struct pex_time
*times
= NULL
;
3323 statuses
= (int *) alloca (n_commands
* sizeof (int));
3324 if (!pex_get_status (pex
, n_commands
, statuses
))
3325 fatal_error (input_location
, "failed to get exit status: %m");
3327 if (report_times
|| report_times_to_file
)
3329 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3330 if (!pex_get_times (pex
, n_commands
, times
))
3331 fatal_error (input_location
, "failed to get process times: %m");
3336 for (i
= 0; i
< n_commands
; ++i
)
3338 int status
= statuses
[i
];
3340 if (WIFSIGNALED (status
))
3341 switch (WTERMSIG (status
))
3345 /* SIGQUIT and SIGKILL are not available on MinGW. */
3352 /* The user (or environment) did something to the
3353 inferior. Making this an ICE confuses the user into
3354 thinking there's a compiler bug. Much more likely is
3355 the user or OOM killer nuked it. */
3356 fatal_error (input_location
,
3357 "%s signal terminated program %s",
3358 strsignal (WTERMSIG (status
)),
3364 /* SIGPIPE is a special case. It happens in -pipe mode
3365 when the compiler dies before the preprocessor is
3366 done, or the assembler dies before the compiler is
3367 done. There's generally been an error already, and
3368 this is just fallout. So don't generate another
3369 error unless we would otherwise have succeeded. */
3370 if (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
)
3380 /* The inferior failed to catch the signal. */
3381 internal_error_no_backtrace ("%s signal terminated program %s",
3382 strsignal (WTERMSIG (status
)),
3385 else if (WIFEXITED (status
)
3386 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3388 /* For ICEs in cc1, cc1obj, cc1plus see if it is
3389 reproducible or not. */
3392 && WEXITSTATUS (status
) == ICE_EXIT_CODE
3394 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
3395 && ! strncmp (p
+ 1, "cc1", 3))
3396 try_generate_repro (commands
[0].argv
);
3397 if (WEXITSTATUS (status
) > greatest_status
)
3398 greatest_status
= WEXITSTATUS (status
);
3402 if (report_times
|| report_times_to_file
)
3404 struct pex_time
*pt
= ×
[i
];
3407 ut
= ((double) pt
->user_seconds
3408 + (double) pt
->user_microseconds
/ 1.0e6
);
3409 st
= ((double) pt
->system_seconds
3410 + (double) pt
->system_microseconds
/ 1.0e6
);
3415 fnotice (stderr
, "# %s %.2f %.2f\n",
3416 commands
[i
].prog
, ut
, st
);
3418 if (report_times_to_file
)
3421 const char *const *j
;
3423 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3425 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3428 for (p
= *j
; *p
; ++p
)
3429 if (*p
== '"' || *p
== '\\' || *p
== '$'
3435 fprintf (report_times_to_file
, " \"");
3436 for (p
= *j
; *p
; ++p
)
3438 if (*p
== '"' || *p
== '\\' || *p
== '$')
3439 fputc ('\\', report_times_to_file
);
3440 fputc (*p
, report_times_to_file
);
3442 fputc ('"', report_times_to_file
);
3445 fprintf (report_times_to_file
, " %s", *j
);
3448 fputc ('\n', report_times_to_file
);
3454 if (commands
[0].argv
[0] != commands
[0].prog
)
3455 free (CONST_CAST (char *, commands
[0].argv
[0]));
3461 /* Find all the switches given to us
3462 and make a vector describing them.
3463 The elements of the vector are strings, one per switch given.
3464 If a switch uses following arguments, then the `part1' field
3465 is the switch itself and the `args' field
3466 is a null-terminated vector containing the following arguments.
3467 Bits in the `live_cond' field are:
3468 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3469 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3470 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3471 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored.
3472 SWITCH_KEEP_FOR_GCC to indicate that this switch, otherwise ignored,
3473 should be included in COLLECT_GCC_OPTIONS.
3474 in all do_spec calls afterwards. Used for %<S from self specs.
3475 The `known' field describes whether this is an internal switch.
3476 The `validated' field describes whether any spec has looked at this switch;
3477 if it remains false at the end of the run, the switch must be meaningless.
3478 The `ordering' field is used to temporarily mark switches that have to be
3479 kept in a specific order. */
3481 #define SWITCH_LIVE (1 << 0)
3482 #define SWITCH_FALSE (1 << 1)
3483 #define SWITCH_IGNORE (1 << 2)
3484 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
3485 #define SWITCH_KEEP_FOR_GCC (1 << 4)
3491 unsigned int live_cond
;
3497 static struct switchstr
*switches
;
3499 static int n_switches
;
3501 static int n_switches_alloc
;
3503 /* Set to zero if -fcompare-debug is disabled, positive if it's
3504 enabled and we're running the first compilation, negative if it's
3505 enabled and we're running the second compilation. For most of the
3506 time, it's in the range -1..1, but it can be temporarily set to 2
3507 or 3 to indicate that the -fcompare-debug flags didn't come from
3508 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3509 variable, until a synthesized -fcompare-debug flag is added to the
3513 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3514 int compare_debug_second
;
3516 /* Set to the flags that should be passed to the second compilation in
3517 a -fcompare-debug compilation. */
3518 const char *compare_debug_opt
;
3520 static struct switchstr
*switches_debug_check
[2];
3522 static int n_switches_debug_check
[2];
3524 static int n_switches_alloc_debug_check
[2];
3526 static char *debug_check_temp_file
[2];
3528 /* Language is one of three things:
3530 1) The name of a real programming language.
3531 2) NULL, indicating that no one has figured out
3533 3) '*', indicating that the file should be passed
3538 const char *language
;
3539 struct compiler
*incompiler
;
3544 /* Also a vector of input files specified. */
3546 static struct infile
*infiles
;
3550 static int n_infiles_alloc
;
3552 /* True if undefined environment variables encountered during spec processing
3553 are ok to ignore, typically when we're running for --help or --version. */
3555 static bool spec_undefvar_allowed
;
3557 /* True if multiple input files are being compiled to a single
3560 static bool combine_inputs
;
3562 /* This counts the number of libraries added by lang_specific_driver, so that
3563 we can tell if there were any user supplied any files or libraries. */
3565 static int added_libraries
;
3567 /* And a vector of corresponding output files is made up later. */
3569 const char **outfiles
;
3571 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3573 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3574 is true if we should look for an executable suffix. DO_OBJ
3575 is true if we should look for an object suffix. */
3578 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3579 int do_obj ATTRIBUTE_UNUSED
)
3581 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3589 len
= strlen (name
);
3591 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3592 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3593 if (do_obj
&& len
> 2
3594 && name
[len
- 2] == '.'
3595 && name
[len
- 1] == 'o')
3597 obstack_grow (&obstack
, name
, len
- 2);
3598 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3599 name
= XOBFINISH (&obstack
, const char *);
3603 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3604 /* If there is no filetype, make it the executable suffix (which includes
3605 the "."). But don't get confused if we have just "-o". */
3606 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3609 for (i
= len
- 1; i
>= 0; i
--)
3610 if (IS_DIR_SEPARATOR (name
[i
]))
3613 for (i
++; i
< len
; i
++)
3617 obstack_grow (&obstack
, name
, len
);
3618 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3619 strlen (TARGET_EXECUTABLE_SUFFIX
));
3620 name
= XOBFINISH (&obstack
, const char *);
3627 /* Display the command line switches accepted by gcc. */
3631 printf (_("Usage: %s [options] file...\n"), progname
);
3632 fputs (_("Options:\n"), stdout
);
3634 fputs (_(" -pass-exit-codes Exit with highest error code from a phase.\n"), stdout
);
3635 fputs (_(" --help Display this information.\n"), stdout
);
3636 fputs (_(" --target-help Display target specific command line options.\n"), stdout
);
3637 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...].\n"), stdout
);
3638 fputs (_(" Display specific types of command line options.\n"), stdout
);
3640 fputs (_(" (Use '-v --help' to display command line options of sub-processes).\n"), stdout
);
3641 fputs (_(" --version Display compiler version information.\n"), stdout
);
3642 fputs (_(" -dumpspecs Display all of the built in spec strings.\n"), stdout
);
3643 fputs (_(" -dumpversion Display the version of the compiler.\n"), stdout
);
3644 fputs (_(" -dumpmachine Display the compiler's target processor.\n"), stdout
);
3645 fputs (_(" -print-search-dirs Display the directories in the compiler's search path.\n"), stdout
);
3646 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library.\n"), stdout
);
3647 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>.\n"), stdout
);
3648 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>.\n"), stdout
);
3650 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3651 a component in the library path.\n"), stdout
);
3652 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc.\n"), stdout
);
3654 -print-multi-lib Display the mapping between command line options and\n\
3655 multiple library search directories.\n"), stdout
);
3656 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries.\n"), stdout
);
3657 fputs (_(" -print-sysroot Display the target libraries directory.\n"), stdout
);
3658 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers.\n"), stdout
);
3659 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler.\n"), stdout
);
3660 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor.\n"), stdout
);
3661 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker.\n"), stdout
);
3662 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler.\n"), stdout
);
3663 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor.\n"), stdout
);
3664 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker.\n"), stdout
);
3665 fputs (_(" -save-temps Do not delete intermediate files.\n"), stdout
);
3666 fputs (_(" -save-temps=<arg> Do not delete intermediate files.\n"), stdout
);
3668 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3669 prefixes to other gcc components.\n"), stdout
);
3670 fputs (_(" -pipe Use pipes rather than intermediate files.\n"), stdout
);
3671 fputs (_(" -time Time the execution of each subprocess.\n"), stdout
);
3672 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>.\n"), stdout
);
3673 fputs (_(" -std=<standard> Assume that the input sources are for <standard>.\n"), stdout
);
3675 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3676 and libraries.\n"), stdout
);
3677 fputs (_(" -B <directory> Add <directory> to the compiler's search paths.\n"), stdout
);
3678 fputs (_(" -v Display the programs invoked by the compiler.\n"), stdout
);
3679 fputs (_(" -### Like -v but options quoted and commands not executed.\n"), stdout
);
3680 fputs (_(" -E Preprocess only; do not compile, assemble or link.\n"), stdout
);
3681 fputs (_(" -S Compile only; do not assemble or link.\n"), stdout
);
3682 fputs (_(" -c Compile and assemble, but do not link.\n"), stdout
);
3683 fputs (_(" -o <file> Place the output into <file>.\n"), stdout
);
3684 fputs (_(" -pie Create a dynamically linked position independent\n\
3685 executable.\n"), stdout
);
3686 fputs (_(" -shared Create a shared library.\n"), stdout
);
3688 -x <language> Specify the language of the following input files.\n\
3689 Permissible languages include: c c++ assembler none\n\
3690 'none' means revert to the default behavior of\n\
3691 guessing the language based on the file's extension.\n\
3695 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3696 passed on to the various sub-processes invoked by %s. In order to pass\n\
3697 other options on to these processes the -W<letter> options must be used.\n\
3700 /* The rest of the options are displayed by invocations of the various
3705 add_preprocessor_option (const char *option
, int len
)
3707 preprocessor_options
.safe_push (save_string (option
, len
));
3711 add_assembler_option (const char *option
, int len
)
3713 assembler_options
.safe_push (save_string (option
, len
));
3717 add_linker_option (const char *option
, int len
)
3719 linker_options
.safe_push (save_string (option
, len
));
3722 /* Allocate space for an input file in infiles. */
3727 if (n_infiles_alloc
== 0)
3729 n_infiles_alloc
= 16;
3730 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3732 else if (n_infiles_alloc
== n_infiles
)
3734 n_infiles_alloc
*= 2;
3735 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3739 /* Store an input file with the given NAME and LANGUAGE in
3743 add_infile (const char *name
, const char *language
)
3746 infiles
[n_infiles
].name
= name
;
3747 infiles
[n_infiles
++].language
= language
;
3750 /* Allocate space for a switch in switches. */
3755 if (n_switches_alloc
== 0)
3757 n_switches_alloc
= 16;
3758 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3760 else if (n_switches_alloc
== n_switches
)
3762 n_switches_alloc
*= 2;
3763 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3767 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3768 as validated if VALIDATED and KNOWN if it is an internal switch. */
3771 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3772 bool validated
, bool known
)
3775 switches
[n_switches
].part1
= opt
+ 1;
3777 switches
[n_switches
].args
= 0;
3780 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3781 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3782 switches
[n_switches
].args
[n_args
] = NULL
;
3785 switches
[n_switches
].live_cond
= 0;
3786 switches
[n_switches
].validated
= validated
;
3787 switches
[n_switches
].known
= known
;
3788 switches
[n_switches
].ordering
= 0;
3792 /* Set the SOURCE_DATE_EPOCH environment variable to the current time if it is
3796 set_source_date_epoch_envvar ()
3798 /* Array size is 21 = ceil(log_10(2^64)) + 1 to hold string representations
3799 of 64 bit integers. */
3800 char source_date_epoch
[21];
3805 if (tt
< (time_t) 0 || errno
!= 0)
3808 snprintf (source_date_epoch
, 21, "%llu", (unsigned long long) tt
);
3809 /* Using setenv instead of xputenv because we want the variable to remain
3810 after finalizing so that it's still set in the second run when using
3812 setenv ("SOURCE_DATE_EPOCH", source_date_epoch
, 0);
3815 /* Handle an option DECODED that is unknown to the option-processing
3819 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3821 const char *opt
= decoded
->arg
;
3822 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3823 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3825 /* Leave unknown -Wno-* options for the compiler proper, to be
3826 diagnosed only if there are warnings. */
3827 save_switch (decoded
->canonical_option
[0],
3828 decoded
->canonical_option_num_elements
- 1,
3829 &decoded
->canonical_option
[1], false, true);
3832 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3834 /* Give it a chance to define it a spec file. */
3835 save_switch (decoded
->canonical_option
[0],
3836 decoded
->canonical_option_num_elements
- 1,
3837 &decoded
->canonical_option
[1], false, false);
3844 /* Handle an option DECODED that is not marked as CL_DRIVER.
3845 LANG_MASK will always be CL_DRIVER. */
3848 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3849 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3851 /* At this point, non-driver options are accepted (and expected to
3852 be passed down by specs) unless marked to be rejected by the
3853 driver. Options to be rejected by the driver but accepted by the
3854 compilers proper are treated just like completely unknown
3856 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3858 if (option
->cl_reject_driver
)
3859 error ("unrecognized command-line option %qs",
3860 decoded
->orig_option_with_args_text
);
3862 save_switch (decoded
->canonical_option
[0],
3863 decoded
->canonical_option_num_elements
- 1,
3864 &decoded
->canonical_option
[1], false, true);
3867 static const char *spec_lang
= 0;
3868 static int last_language_n_infiles
;
3870 /* Parse -foffload option argument. */
3873 handle_foffload_option (const char *arg
)
3875 const char *c
, *cur
, *n
, *next
, *end
;
3878 /* If option argument starts with '-' then no target is specified and we
3879 do not need to parse it. */
3883 end
= strchr (arg
, '=');
3885 end
= strchr (arg
, '\0');
3890 next
= strchr (cur
, ',');
3893 next
= (next
> end
) ? end
: next
;
3895 target
= XNEWVEC (char, next
- cur
+ 1);
3896 memcpy (target
, cur
, next
- cur
);
3897 target
[next
- cur
] = '\0';
3899 /* If 'disable' is passed to the option, stop parsing the option and clean
3900 the list of offload targets. */
3901 if (strcmp (target
, "disable") == 0)
3903 free (offload_targets
);
3904 offload_targets
= xstrdup ("");
3908 /* Check that GCC is configured to support the offload target. */
3909 c
= OFFLOAD_TARGETS
;
3912 n
= strchr (c
, ',');
3914 n
= strchr (c
, '\0');
3916 if (next
- cur
== n
- c
&& strncmp (target
, c
, n
- c
) == 0)
3919 c
= *n
? n
+ 1 : NULL
;
3923 fatal_error (input_location
,
3924 "GCC is not configured to support %s as offload target",
3927 if (!offload_targets
)
3929 offload_targets
= target
;
3934 /* Check that the target hasn't already presented in the list. */
3935 c
= offload_targets
;
3938 n
= strchr (c
, ':');
3940 n
= strchr (c
, '\0');
3942 if (next
- cur
== n
- c
&& strncmp (c
, target
, n
- c
) == 0)
3949 /* If duplicate is not found, append the target to the list. */
3952 size_t offload_targets_len
= strlen (offload_targets
);
3954 = XRESIZEVEC (char, offload_targets
,
3955 offload_targets_len
+ 1 + next
- cur
+ 1);
3956 offload_targets
[offload_targets_len
++] = ':';
3957 memcpy (offload_targets
+ offload_targets_len
, target
, next
- cur
+ 1);
3962 XDELETEVEC (target
);
3966 /* Handle a driver option; arguments and return value as for
3970 driver_handle_option (struct gcc_options
*opts
,
3971 struct gcc_options
*opts_set
,
3972 const struct cl_decoded_option
*decoded
,
3973 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
3975 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
3976 diagnostic_context
*dc
,
3979 size_t opt_index
= decoded
->opt_index
;
3980 const char *arg
= decoded
->arg
;
3981 const char *compare_debug_replacement_opt
;
3982 int value
= decoded
->value
;
3983 bool validated
= false;
3984 bool do_save
= true;
3986 gcc_assert (opts
== &global_options
);
3987 gcc_assert (opts_set
== &global_options_set
);
3988 gcc_assert (kind
== DK_UNSPECIFIED
);
3989 gcc_assert (loc
== UNKNOWN_LOCATION
);
3990 gcc_assert (dc
== global_dc
);
3996 struct spec_list
*sl
;
3998 for (sl
= specs
; sl
; sl
= sl
->next
)
3999 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
4000 if (link_command_spec
)
4001 printf ("*link_command:\n%s\n\n", link_command_spec
);
4005 case OPT_dumpversion
:
4006 printf ("%s\n", spec_version
);
4009 case OPT_dumpmachine
:
4010 printf ("%s\n", spec_machine
);
4013 case OPT_dumpfullversion
:
4014 printf ("%s\n", BASEVER
);
4020 /* CPP driver cannot obtain switch from cc1_options. */
4022 add_preprocessor_option ("--version", strlen ("--version"));
4023 add_assembler_option ("--version", strlen ("--version"));
4024 add_linker_option ("--version", strlen ("--version"));
4027 case OPT__completion_
:
4029 completion
= decoded
->arg
;
4033 print_help_list
= 1;
4035 /* CPP driver cannot obtain switch from cc1_options. */
4037 add_preprocessor_option ("--help", 6);
4038 add_assembler_option ("--help", 6);
4039 add_linker_option ("--help", 6);
4043 print_subprocess_help
= 2;
4046 case OPT__target_help
:
4047 print_subprocess_help
= 1;
4049 /* CPP driver cannot obtain switch from cc1_options. */
4051 add_preprocessor_option ("--target-help", 13);
4052 add_assembler_option ("--target-help", 13);
4053 add_linker_option ("--target-help", 13);
4056 case OPT__no_sysroot_suffix
:
4057 case OPT_pass_exit_codes
:
4058 case OPT_print_search_dirs
:
4059 case OPT_print_file_name_
:
4060 case OPT_print_prog_name_
:
4061 case OPT_print_multi_lib
:
4062 case OPT_print_multi_directory
:
4063 case OPT_print_sysroot
:
4064 case OPT_print_multi_os_directory
:
4065 case OPT_print_multiarch
:
4066 case OPT_print_sysroot_headers_suffix
:
4069 /* These options set the variables specified in common.opt
4070 automatically, and do not need to be saved for spec
4075 case OPT_print_libgcc_file_name
:
4076 print_file_name
= "libgcc.a";
4080 case OPT_fuse_ld_bfd
:
4084 case OPT_fuse_ld_gold
:
4088 case OPT_fcompare_debug_second
:
4089 compare_debug_second
= 1;
4092 case OPT_fcompare_debug
:
4096 compare_debug_replacement_opt
= "-fcompare-debug=";
4098 goto compare_debug_with_arg
;
4101 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
4103 goto compare_debug_with_arg
;
4110 case OPT_fcompare_debug_
:
4111 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
4112 compare_debug_with_arg
:
4113 gcc_assert (decoded
->canonical_option_num_elements
== 1);
4114 gcc_assert (arg
!= NULL
);
4119 if (compare_debug
< 0)
4120 compare_debug_opt
= NULL
;
4122 compare_debug_opt
= arg
;
4123 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
4124 set_source_date_epoch_envvar ();
4127 case OPT_fdiagnostics_color_
:
4128 diagnostic_color_init (dc
, value
);
4131 case OPT_fdiagnostics_urls_
:
4132 diagnostic_urls_init (dc
, value
);
4135 case OPT_fdiagnostics_format_
:
4136 diagnostic_output_format_init (dc
,
4137 (enum diagnostics_output_format
)value
);
4143 /* Pass the rest of this option to the assembler. */
4145 /* Split the argument at commas. */
4147 for (j
= 0; arg
[j
]; j
++)
4150 add_assembler_option (arg
+ prev
, j
- prev
);
4154 /* Record the part after the last comma. */
4155 add_assembler_option (arg
+ prev
, j
- prev
);
4163 /* Pass the rest of this option to the preprocessor. */
4165 /* Split the argument at commas. */
4167 for (j
= 0; arg
[j
]; j
++)
4170 add_preprocessor_option (arg
+ prev
, j
- prev
);
4174 /* Record the part after the last comma. */
4175 add_preprocessor_option (arg
+ prev
, j
- prev
);
4183 /* Split the argument at commas. */
4185 for (j
= 0; arg
[j
]; j
++)
4188 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
4191 /* Record the part after the last comma. */
4192 add_infile (arg
+ prev
, "*");
4198 add_infile (arg
, "*");
4202 case OPT_Xpreprocessor
:
4203 add_preprocessor_option (arg
, strlen (arg
));
4207 case OPT_Xassembler
:
4208 add_assembler_option (arg
, strlen (arg
));
4213 /* POSIX allows separation of -l and the lib arg; canonicalize
4214 by concatenating -l with its arg */
4215 add_infile (concat ("-l", arg
, NULL
), "*");
4220 /* Similarly, canonicalize -L for linkers that may not accept
4221 separate arguments. */
4222 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
4227 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
4230 case OPT_save_temps
:
4231 if (!save_temps_flag
)
4232 save_temps_flag
= SAVE_TEMPS_DUMP
;
4236 case OPT_save_temps_
:
4237 if (strcmp (arg
, "cwd") == 0)
4238 save_temps_flag
= SAVE_TEMPS_CWD
;
4239 else if (strcmp (arg
, "obj") == 0
4240 || strcmp (arg
, "object") == 0)
4241 save_temps_flag
= SAVE_TEMPS_OBJ
;
4243 fatal_error (input_location
, "%qs is an unknown %<-save-temps%> option",
4244 decoded
->orig_option_with_args_text
);
4245 save_temps_overrides_dumpdir
= true;
4250 dumpdir
= xstrdup (arg
);
4251 save_temps_overrides_dumpdir
= false;
4256 dumpbase
= xstrdup (arg
);
4259 case OPT_dumpbase_ext
:
4260 free (dumpbase_ext
);
4261 dumpbase_ext
= xstrdup (arg
);
4264 case OPT_no_canonical_prefixes
:
4265 /* Already handled as a special case, so ignored here. */
4271 /* These options set the variables specified in common.opt
4272 automatically, but do need to be saved for spec
4278 struct user_specs
*user
= XNEW (struct user_specs
);
4280 user
->next
= (struct user_specs
*) 0;
4281 user
->filename
= arg
;
4282 if (user_specs_tail
)
4283 user_specs_tail
->next
= user
;
4285 user_specs_head
= user
;
4286 user_specs_tail
= user
;
4292 target_system_root
= arg
;
4293 target_system_root_changed
= 1;
4298 if (report_times_to_file
)
4299 fclose (report_times_to_file
);
4300 report_times_to_file
= fopen (arg
, "a");
4306 This is similar to -v except that there is no execution
4307 of the commands and the echoed arguments are quoted. It
4308 is intended for use in shell scripts to capture the
4309 driver-generated command line. */
4310 verbose_only_flag
++;
4317 size_t len
= strlen (arg
);
4319 /* Catch the case where the user has forgotten to append a
4320 directory separator to the path. Note, they may be using
4321 -B to add an executable name prefix, eg "i386-elf-", in
4322 order to distinguish between multiple installations of
4323 GCC in the same directory. Hence we must check to see
4324 if appending a directory separator actually makes a
4325 valid directory name. */
4326 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
4327 && is_directory (arg
, false))
4329 char *tmp
= XNEWVEC (char, len
+ 2);
4331 tmp
[len
] = DIR_SEPARATOR
;
4336 add_prefix (&exec_prefixes
, arg
, NULL
,
4337 PREFIX_PRIORITY_B_OPT
, 0, 0);
4338 add_prefix (&startfile_prefixes
, arg
, NULL
,
4339 PREFIX_PRIORITY_B_OPT
, 0, 0);
4340 add_prefix (&include_prefixes
, arg
, NULL
,
4341 PREFIX_PRIORITY_B_OPT
, 0, 0);
4352 if (!strcmp (spec_lang
, "none"))
4353 /* Suppress the warning if -xnone comes after the last input
4354 file, because alternate command interfaces like g++ might
4355 find it useful to place -xnone after each input file. */
4358 last_language_n_infiles
= n_infiles
;
4364 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4365 arg
= convert_filename (arg
, ! have_c
, 0);
4368 /* On some systems, ld cannot handle "-o" without a space. So
4369 split the option from its argument. */
4370 save_switch ("-o", 1, &arg
, validated
, true);
4373 #ifdef ENABLE_DEFAULT_PIE
4375 /* -pie is turned on by default. */
4378 case OPT_static_libgcc
:
4379 case OPT_shared_libgcc
:
4380 case OPT_static_libgfortran
:
4381 case OPT_static_libstdc__
:
4382 /* These are always valid, since gcc.c itself understands the
4383 first two, gfortranspec.c understands -static-libgfortran and
4384 g++spec.c understands -static-libstdc++ */
4393 handle_foffload_option (arg
);
4397 /* Various driver options need no special processing at this
4398 point, having been handled in a prescan above or being
4399 handled by specs. */
4404 save_switch (decoded
->canonical_option
[0],
4405 decoded
->canonical_option_num_elements
- 1,
4406 &decoded
->canonical_option
[1], validated
, true);
4410 /* Return true if F2 is F1 followed by a single suffix, i.e., by a
4411 period and additional characters other than a period. */
4414 adds_single_suffix_p (const char *f2
, const char *f1
)
4416 size_t len
= strlen (f1
);
4418 return (strncmp (f1
, f2
, len
) == 0
4420 && strchr (f2
+ len
+ 1, '.') == NULL
);
4423 /* Put the driver's standard set of option handlers in *HANDLERS. */
4426 set_option_handlers (struct cl_option_handlers
*handlers
)
4428 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
4429 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
4430 handlers
->num_handlers
= 3;
4431 handlers
->handlers
[0].handler
= driver_handle_option
;
4432 handlers
->handlers
[0].mask
= CL_DRIVER
;
4433 handlers
->handlers
[1].handler
= common_handle_option
;
4434 handlers
->handlers
[1].mask
= CL_COMMON
;
4435 handlers
->handlers
[2].handler
= target_handle_option
;
4436 handlers
->handlers
[2].mask
= CL_TARGET
;
4440 /* Return the index into infiles for the single non-library
4441 non-lto-wpa input file, -1 if there isn't any, or -2 if there is
4444 single_input_file_index ()
4448 for (int i
= 0; i
< n_infiles
; i
++)
4450 if (infiles
[i
].language
4451 && (infiles
[i
].language
[0] == '*'
4453 && strcmp (infiles
[i
].language
, "lto") == 0)))
4465 /* Create the vector `switches' and its contents.
4466 Store its length in `n_switches'. */
4469 process_command (unsigned int decoded_options_count
,
4470 struct cl_decoded_option
*decoded_options
)
4474 char *tooldir_prefix
, *tooldir_prefix2
;
4475 char *(*get_relative_prefix
) (const char *, const char *,
4476 const char *) = NULL
;
4477 struct cl_option_handlers handlers
;
4480 gcc_exec_prefix
= env
.get ("GCC_EXEC_PREFIX");
4484 added_libraries
= 0;
4486 /* Figure compiler version from version string. */
4488 compiler_version
= temp1
= xstrdup (version_string
);
4490 for (; *temp1
; ++temp1
)
4499 /* Handle any -no-canonical-prefixes flag early, to assign the function
4500 that builds relative prefixes. This function creates default search
4501 paths that are needed later in normal option handling. */
4503 for (j
= 1; j
< decoded_options_count
; j
++)
4505 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
4507 get_relative_prefix
= make_relative_prefix_ignore_links
;
4511 if (! get_relative_prefix
)
4512 get_relative_prefix
= make_relative_prefix
;
4514 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
4515 see if we can create it from the pathname specified in
4516 decoded_options[0].arg. */
4518 gcc_libexec_prefix
= standard_libexec_prefix
;
4520 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
4521 if (!gcc_exec_prefix
)
4523 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4524 standard_bindir_prefix
,
4525 standard_exec_prefix
);
4526 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4527 standard_bindir_prefix
,
4528 standard_libexec_prefix
);
4529 if (gcc_exec_prefix
)
4530 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
4534 /* make_relative_prefix requires a program name, but
4535 GCC_EXEC_PREFIX is typically a directory name with a trailing
4536 / (which is ignored by make_relative_prefix), so append a
4538 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
4539 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
4540 standard_exec_prefix
,
4541 standard_libexec_prefix
);
4543 /* The path is unrelocated, so fallback to the original setting. */
4544 if (!gcc_libexec_prefix
)
4545 gcc_libexec_prefix
= standard_libexec_prefix
;
4551 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
4552 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
4553 or an automatically created GCC_EXEC_PREFIX from
4554 decoded_options[0].arg. */
4556 /* Do language-specific adjustment/addition of flags. */
4557 lang_specific_driver (&decoded_options
, &decoded_options_count
,
4560 if (gcc_exec_prefix
)
4562 int len
= strlen (gcc_exec_prefix
);
4564 if (len
> (int) sizeof ("/lib/gcc/") - 1
4565 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
4567 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
4568 if (IS_DIR_SEPARATOR (*temp
)
4569 && filename_ncmp (temp
+ 1, "lib", 3) == 0
4570 && IS_DIR_SEPARATOR (temp
[4])
4571 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
4572 len
-= sizeof ("/lib/gcc/") - 1;
4575 set_std_prefix (gcc_exec_prefix
, len
);
4576 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
4577 PREFIX_PRIORITY_LAST
, 0, 0);
4578 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
4579 PREFIX_PRIORITY_LAST
, 0, 0);
4582 /* COMPILER_PATH and LIBRARY_PATH have values
4583 that are lists of directory names with colons. */
4585 temp
= env
.get ("COMPILER_PATH");
4588 const char *startp
, *endp
;
4589 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4591 startp
= endp
= temp
;
4594 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4596 strncpy (nstore
, startp
, endp
- startp
);
4598 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4599 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4601 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4602 nstore
[endp
- startp
+ 1] = 0;
4605 nstore
[endp
- startp
] = 0;
4606 add_prefix (&exec_prefixes
, nstore
, 0,
4607 PREFIX_PRIORITY_LAST
, 0, 0);
4608 add_prefix (&include_prefixes
, nstore
, 0,
4609 PREFIX_PRIORITY_LAST
, 0, 0);
4612 endp
= startp
= endp
+ 1;
4619 temp
= env
.get (LIBRARY_PATH_ENV
);
4620 if (temp
&& *cross_compile
== '0')
4622 const char *startp
, *endp
;
4623 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4625 startp
= endp
= temp
;
4628 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4630 strncpy (nstore
, startp
, endp
- startp
);
4632 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4633 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4635 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4636 nstore
[endp
- startp
+ 1] = 0;
4639 nstore
[endp
- startp
] = 0;
4640 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4641 PREFIX_PRIORITY_LAST
, 0, 1);
4644 endp
= startp
= endp
+ 1;
4651 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4652 temp
= env
.get ("LPATH");
4653 if (temp
&& *cross_compile
== '0')
4655 const char *startp
, *endp
;
4656 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4658 startp
= endp
= temp
;
4661 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4663 strncpy (nstore
, startp
, endp
- startp
);
4665 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4666 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4668 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4669 nstore
[endp
- startp
+ 1] = 0;
4672 nstore
[endp
- startp
] = 0;
4673 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4674 PREFIX_PRIORITY_LAST
, 0, 1);
4677 endp
= startp
= endp
+ 1;
4684 /* Process the options and store input files and switches in their
4687 last_language_n_infiles
= -1;
4689 set_option_handlers (&handlers
);
4691 for (j
= 1; j
< decoded_options_count
; j
++)
4693 switch (decoded_options
[j
].opt_index
)
4705 for (j
= 1; j
< decoded_options_count
; j
++)
4707 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4709 const char *arg
= decoded_options
[j
].arg
;
4710 const char *p
= strrchr (arg
, '@');
4714 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4715 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4717 /* For LTO static archive support we handle input file
4718 specifications that are composed of a filename and
4719 an offset like FNAME@OFFSET. */
4722 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4723 && strlen (p
) == (unsigned int)consumed
)
4725 fname
= (char *)xmalloc (p
- arg
+ 1);
4726 memcpy (fname
, arg
, p
- arg
);
4727 fname
[p
- arg
] = '\0';
4728 /* Only accept non-stdin and existing FNAME parts, otherwise
4729 try with the full name. */
4730 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4733 fname
= xstrdup (arg
);
4737 fname
= xstrdup (arg
);
4739 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4741 bool resp
= fname
[0] == '@' && access (fname
+ 1, F_OK
) < 0;
4742 error ("%s: %m", fname
+ resp
);
4745 add_infile (arg
, spec_lang
);
4751 read_cmdline_option (&global_options
, &global_options_set
,
4752 decoded_options
+ j
, UNKNOWN_LOCATION
,
4753 CL_DRIVER
, &handlers
, global_dc
);
4756 /* If the user didn't specify any, default to all configured offload
4758 if (ENABLE_OFFLOADING
&& offload_targets
== NULL
)
4759 handle_foffload_option (OFFLOAD_TARGETS
);
4762 && strcmp (output_file
, "-") != 0
4763 && strcmp (output_file
, HOST_BIT_BUCKET
) != 0)
4766 for (i
= 0; i
< n_infiles
; i
++)
4767 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
4768 && canonical_filename_eq (infiles
[i
].name
, output_file
))
4769 fatal_error (input_location
,
4770 "input file %qs is the same as output file",
4774 if (output_file
!= NULL
&& output_file
[0] == '\0')
4775 fatal_error (input_location
, "output filename may not be empty");
4777 /* -dumpdir and -save-temps=* both specify the location of aux/dump
4778 outputs; the one that appears last prevails. When compiling
4779 multiple sources, an explicit dumpbase (minus -ext) may be
4780 combined with an explicit or implicit dumpdir, whereas when
4781 linking, a specified or implied link output name (minus
4782 extension) may be combined with a prevailing -save-temps=* or an
4783 otherwise implied dumpdir, but not override a prevailing
4784 -dumpdir. Primary outputs (e.g., linker output when linking
4785 without -o, or .i, .s or .o outputs when processing multiple
4786 inputs with -E, -S or -c, respectively) are NOT affected by these
4787 -save-temps=/-dump* options, always landing in the current
4788 directory and with the same basename as the input when an output
4789 name is not given, but when they're intermediate outputs, they
4790 are named like other aux outputs, so the options affect their
4793 Here are some examples. There are several more in the
4794 documentation of -o and -dump*, and some quite exhaustive tests
4795 in gcc.misc-tests/outputs.exp.
4797 When compiling any number of sources, no -dump* nor
4798 -save-temps=*, all outputs in cwd without prefix:
4800 # gcc -c b.c -gsplit-dwarf
4801 -> cc1 [-dumpdir ./] -dumpbase b.c -dumpbase-ext .c # b.o b.dwo
4803 # gcc -c b.c d.c -gsplit-dwarf
4804 -> cc1 [-dumpdir ./] -dumpbase b.c -dumpbase-ext .c # b.o b.dwo
4805 && cc1 [-dumpdir ./] -dumpbase d.c -dumpbase-ext .c # d.o d.dwo
4807 When compiling and linking, no -dump* nor -save-temps=*, .o
4808 outputs are temporary, aux outputs land in the dir of the output,
4809 prefixed with the basename of the linker output:
4811 # gcc b.c d.c -o ab -gsplit-dwarf
4812 -> cc1 -dumpdir ab- -dumpbase b.c -dumpbase-ext .c # ab-b.dwo
4813 && cc1 -dumpdir ab- -dumpbase d.c -dumpbase-ext .c # ab-d.dwo
4816 # gcc b.c d.c [-o a.out] -gsplit-dwarf
4817 -> cc1 -dumpdir a- -dumpbase b.c -dumpbase-ext .c # a-b.dwo
4818 && cc1 -dumpdir a- -dumpbase d.c -dumpbase-ext .c # a-d.dwo
4819 && link ... [-o a.out]
4821 When compiling and linking, a prevailing -dumpdir fully overrides
4822 the prefix of aux outputs given by the output name:
4824 # gcc -dumpdir f b.c d.c -gsplit-dwarf [-o [dir/]whatever]
4825 -> cc1 -dumpdir f -dumpbase b.c -dumpbase-ext .c # fb.dwo
4826 && cc1 -dumpdir f -dumpbase d.c -dumpbase-ext .c # fd.dwo
4827 && link ... [-o whatever]
4829 When compiling multiple inputs, an explicit -dumpbase is combined
4830 with -dumpdir, affecting aux outputs, but not the .o outputs:
4832 # gcc -dumpdir f -dumpbase g- b.c d.c -gsplit-dwarf -c
4833 -> cc1 -dumpdir fg- -dumpbase b.c -dumpbase-ext .c # b.o fg-b.dwo
4834 && cc1 -dumpdir fg- -dumpbase d.c -dumpbase-ext .c # d.o fg-d.dwo
4836 When compiling and linking with -save-temps, the .o outputs that
4837 would have been temporary become aux outputs, so they get
4838 affected by -dump* flags:
4840 # gcc -dumpdir f -dumpbase g- -save-temps b.c d.c
4841 -> cc1 -dumpdir fg- -dumpbase b.c -dumpbase-ext .c # fg-b.o
4842 && cc1 -dumpdir fg- -dumpbase d.c -dumpbase-ext .c # fg-d.o
4845 If -save-temps=* prevails over -dumpdir, however, the explicit
4846 -dumpdir is discarded, as if it wasn't there. The basename of
4847 the implicit linker output, a.out or a.exe, becomes a- as the aux
4848 output prefix for all compilations:
4850 # gcc [-dumpdir f] -save-temps=cwd b.c d.c
4851 -> cc1 -dumpdir a- -dumpbase b.c -dumpbase-ext .c # a-b.o
4852 && cc1 -dumpdir a- -dumpbase d.c -dumpbase-ext .c # a-d.o
4855 A single -dumpbase, applying to multiple inputs, overrides the
4856 linker output name, implied or explicit, as the aux output prefix:
4858 # gcc [-dumpdir f] -dumpbase g- -save-temps=cwd b.c d.c
4859 -> cc1 -dumpdir g- -dumpbase b.c -dumpbase-ext .c # g-b.o
4860 && cc1 -dumpdir g- -dumpbase d.c -dumpbase-ext .c # g-d.o
4863 # gcc [-dumpdir f] -dumpbase g- -save-temps=cwd b.c d.c -o dir/h.out
4864 -> cc1 -dumpdir g- -dumpbase b.c -dumpbase-ext .c # g-b.o
4865 && cc1 -dumpdir g- -dumpbase d.c -dumpbase-ext .c # g-d.o
4866 && link -o dir/h.out
4868 Now, if the linker output is NOT overridden as a prefix, but
4869 -save-temps=* overrides implicit or explicit -dumpdir, the
4870 effective dump dir combines the dir selected by the -save-temps=*
4871 option with the basename of the specified or implied link output:
4873 # gcc [-dumpdir f] -save-temps=cwd b.c d.c -o dir/h.out
4874 -> cc1 -dumpdir h- -dumpbase b.c -dumpbase-ext .c # h-b.o
4875 && cc1 -dumpdir h- -dumpbase d.c -dumpbase-ext .c # h-d.o
4876 && link -o dir/h.out
4878 # gcc [-dumpdir f] -save-temps=obj b.c d.c -o dir/h.out
4879 -> cc1 -dumpdir dir/h- -dumpbase b.c -dumpbase-ext .c # dir/h-b.o
4880 && cc1 -dumpdir dir/h- -dumpbase d.c -dumpbase-ext .c # dir/h-d.o
4881 && link -o dir/h.out
4883 But then again, a single -dumpbase applying to multiple inputs
4884 gets used instead of the linker output basename in the combined
4887 # gcc [-dumpdir f] -dumpbase g- -save-temps=obj b.c d.c -o dir/h.out
4888 -> cc1 -dumpdir dir/g- -dumpbase b.c -dumpbase-ext .c # dir/g-b.o
4889 && cc1 -dumpdir dir/g- -dumpbase d.c -dumpbase-ext .c # dir/g-d.o
4890 && link -o dir/h.out
4892 With a single input being compiled, the output basename does NOT
4893 affect the dumpdir prefix.
4895 # gcc -save-temps=obj b.c -gsplit-dwarf -c -o dir/b.o
4896 -> cc1 -dumpdir dir/ -dumpbase b.c -dumpbase-ext .c # dir/b.o dir/b.dwo
4898 but when compiling and linking even a single file, it does:
4900 # gcc -save-temps=obj b.c -o dir/h.out
4901 -> cc1 -dumpdir dir/h- -dumpbase b.c -dumpbase-ext .c # dir/h-b.o
4903 unless an explicit -dumpdir prevails:
4905 # gcc -save-temps[=obj] -dumpdir g- b.c -o dir/h.out
4906 -> cc1 -dumpdir g- -dumpbase b.c -dumpbase-ext .c # g-b.o
4910 bool explicit_dumpdir
= dumpdir
;
4912 if (!save_temps_overrides_dumpdir
&& explicit_dumpdir
)
4917 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4918 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4919 else if (save_temps_flag
!= SAVE_TEMPS_CWD
&& output_file
!= NULL
)
4923 temp
= lbasename (output_file
);
4924 if (temp
!= output_file
)
4925 dumpdir
= xstrndup (output_file
,
4926 strlen (output_file
) - strlen (temp
));
4934 if (save_temps_flag
)
4935 save_temps_flag
= SAVE_TEMPS_DUMP
;
4937 /* If there is any pathname component in an explicit -dumpbase, it
4938 overrides dumpdir entirely, so discard it right away. Although
4939 the presence of an explicit -dumpdir matters for the driver, it
4940 shouldn't matter for other processes, that get all that's needed
4941 from the -dumpdir and -dumpbase always passed to them. */
4942 if (dumpdir
&& dumpbase
&& lbasename (dumpbase
) != dumpbase
)
4948 /* Check that dumpbase_ext matches the end of dumpbase, drop it
4950 if (dumpbase_ext
&& dumpbase
&& *dumpbase
)
4952 int lendb
= strlen (dumpbase
);
4953 int lendbx
= strlen (dumpbase_ext
);
4955 /* -dumpbase-ext must be a suffix proper; discard it if it
4956 matches all of -dumpbase, as that would make for an empty
4959 || strcmp (dumpbase
+ lendb
- lendbx
, dumpbase_ext
) != 0)
4961 free (dumpbase_ext
);
4962 dumpbase_ext
= NULL
;
4966 /* -dumpbase with multiple sources goes into dumpdir. With a single
4967 source, it does only if linking and if dumpdir was not explicitly
4969 if (dumpbase
&& *dumpbase
4970 && (single_input_file_index () == -2
4971 || (!have_c
&& !explicit_dumpdir
)))
4976 /* We checked that they match above. */
4977 dumpbase
[strlen (dumpbase
) - strlen (dumpbase_ext
)] = '\0';
4980 prefix
= concat (dumpdir
, dumpbase
, "-", NULL
);
4982 prefix
= concat (dumpbase
, "-", NULL
);
4986 free (dumpbase_ext
);
4987 dumpbase
= dumpbase_ext
= NULL
;
4989 dumpdir_trailing_dash_added
= true;
4992 /* If dumpbase was not brought into dumpdir but we're linking, bring
4993 output_file into dumpdir unless dumpdir was explicitly specified.
4994 The test for !explicit_dumpdir is further below, because we want
4995 to use the obase computation for a ghost outbase, passed to
4996 GCC_COLLECT_OPTIONS. */
4997 else if (!have_c
&& (!explicit_dumpdir
|| (dumpbase
&& !*dumpbase
)))
4999 /* If we get here, we know dumpbase was not specified, or it was
5000 specified as an empty string. If it was anything else, it
5001 would have combined with dumpdir above, because the condition
5002 for dumpbase to be used when present is broader than the
5003 condition that gets us here. */
5004 gcc_assert (!dumpbase
|| !*dumpbase
);
5007 char *tofree
= NULL
;
5008 if (!output_file
|| not_actual_file_p (output_file
))
5012 obase
= lbasename (output_file
);
5013 size_t blen
= strlen (obase
), xlen
;
5014 /* Drop the suffix if it's dumpbase_ext, if given,
5015 otherwise .exe or the target executable suffix, or if the
5016 output was explicitly named a.out, but not otherwise. */
5018 ? (blen
> (xlen
= strlen (dumpbase_ext
))
5019 && strcmp ((temp
= (obase
+ blen
- xlen
)),
5021 : ((temp
= strrchr (obase
+ 1, '.'))
5022 && (xlen
= strlen (temp
))
5023 && (strcmp (temp
, ".exe") == 0
5024 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
5025 || strcmp (temp
, TARGET_EXECUTABLE_SUFFIX
) == 0
5027 || strcmp (obase
, "a.out") == 0)))
5029 tofree
= xstrndup (obase
, blen
- xlen
);
5034 /* We wish to save this basename to the -dumpdir passed through
5035 GCC_COLLECT_OPTIONS within maybe_run_linker, for e.g. LTO,
5036 but we do NOT wish to add it to e.g. %b, so we keep
5037 outbase_length as zero. */
5038 gcc_assert (!outbase
);
5041 /* If we're building [dir1/]foo[.exe] out of a single input
5042 [dir2/]foo.c that shares the same basename, dump to
5043 [dir2/]foo.c.* rather than duplicating the basename into
5044 [dir2/]foo-foo.c.*. */
5047 || ((idxin
= single_input_file_index ()) >= 0
5048 && adds_single_suffix_p (lbasename (infiles
[idxin
].name
),
5051 if (obase
== tofree
)
5055 outbase
= xstrdup (obase
);
5058 obase
= tofree
= NULL
;
5064 char *p
= concat (dumpdir
, obase
, "-", NULL
);
5069 dumpdir
= concat (obase
, "-", NULL
);
5071 dumpdir_trailing_dash_added
= true;
5074 obase
= tofree
= NULL
;
5077 if (!explicit_dumpdir
|| dumpbase
)
5079 /* Absent -dumpbase and present -dumpbase-ext have been applied
5080 to the linker output name, so compute fresh defaults for each
5082 free (dumpbase_ext
);
5083 dumpbase_ext
= NULL
;
5087 /* Now, if we're compiling, or if we haven't used the dumpbase
5088 above, then outbase (%B) is derived from dumpbase, if given, or
5089 from the output name, given or implied. We can't precompute
5090 implied output names, but that's ok, since they're derived from
5091 input names. Just make sure we skip this if dumpbase is the
5092 empty string: we want to use input names then, so don't set
5094 if ((dumpbase
|| have_c
)
5095 && !(dumpbase
&& !*dumpbase
))
5097 gcc_assert (!outbase
);
5101 gcc_assert (single_input_file_index () != -2);
5102 /* We do not want lbasename here; dumpbase with dirnames
5103 overrides dumpdir entirely, even if dumpdir is
5106 /* We've already checked above that the suffix matches. */
5107 outbase
= xstrndup (dumpbase
,
5108 strlen (dumpbase
) - strlen (dumpbase_ext
));
5110 outbase
= xstrdup (dumpbase
);
5112 else if (output_file
&& !not_actual_file_p (output_file
))
5114 outbase
= xstrdup (lbasename (output_file
));
5115 char *p
= strrchr (outbase
+ 1, '.');
5121 outbase_length
= strlen (outbase
);
5124 /* If there is any pathname component in an explicit -dumpbase, do
5125 not use dumpdir, but retain it to pass it on to the compiler. */
5127 dumpdir_length
= strlen (dumpdir
);
5131 /* Check that dumpbase_ext, if still present, still matches the end
5132 of dumpbase, if present, and drop it otherwise. We only retained
5133 it above when dumpbase was absent to maybe use it to drop the
5134 extension from output_name before combining it with dumpdir. We
5135 won't deal with -dumpbase-ext when -dumpbase is not explicitly
5136 given, even if just to activate backward-compatible dumpbase:
5137 dropping it on the floor is correct, expected and documented
5138 behavior. Attempting to deal with a -dumpbase-ext that might
5139 match the end of some input filename, or of the combination of
5140 the output basename with the suffix of the input filename,
5141 possible with an intermediate .gk extension for -fcompare-debug,
5142 is just calling for trouble. */
5145 if (!dumpbase
|| !*dumpbase
)
5147 free (dumpbase_ext
);
5148 dumpbase_ext
= NULL
;
5151 gcc_assert (strcmp (dumpbase
+ strlen (dumpbase
)
5152 - strlen (dumpbase_ext
), dumpbase_ext
) == 0);
5155 if (save_temps_flag
&& use_pipes
)
5157 /* -save-temps overrides -pipe, so that temp files are produced */
5158 if (save_temps_flag
)
5159 warning (0, "%<-pipe%> ignored because %<-save-temps%> specified");
5165 const char *gcd
= env
.get ("GCC_COMPARE_DEBUG");
5167 if (gcd
&& gcd
[0] == '-')
5170 compare_debug_opt
= gcd
;
5172 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
5175 compare_debug_opt
= "-gtoggle";
5178 else if (compare_debug
< 0)
5181 gcc_assert (!compare_debug_opt
);
5184 /* Set up the search paths. We add directories that we expect to
5185 contain GNU Toolchain components before directories specified by
5186 the machine description so that we will find GNU components (like
5187 the GNU assembler) before those of the host system. */
5189 /* If we don't know where the toolchain has been installed, use the
5190 configured-in locations. */
5191 if (!gcc_exec_prefix
)
5194 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
5195 PREFIX_PRIORITY_LAST
, 1, 0);
5196 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
5197 PREFIX_PRIORITY_LAST
, 2, 0);
5198 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
5199 PREFIX_PRIORITY_LAST
, 2, 0);
5201 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
5202 PREFIX_PRIORITY_LAST
, 1, 0);
5205 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
5206 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
5207 dir_separator_str
, NULL
);
5209 /* Look for tools relative to the location from which the driver is
5210 running, or, if that is not available, the configured prefix. */
5212 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
5213 spec_host_machine
, dir_separator_str
, spec_version
,
5214 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
5215 free (tooldir_prefix2
);
5217 add_prefix (&exec_prefixes
,
5218 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
5219 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
5220 add_prefix (&startfile_prefixes
,
5221 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
5222 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
5223 free (tooldir_prefix
);
5225 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
5226 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
5227 then consider it to relocate with the rest of the GCC installation
5228 if GCC_EXEC_PREFIX is set.
5229 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
5230 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
5232 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
5233 standard_bindir_prefix
,
5234 target_system_root
);
5235 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
5237 target_system_root
= tmp_prefix
;
5238 target_system_root_changed
= 1;
5243 /* More prefixes are enabled in main, after we read the specs file
5244 and determine whether this is cross-compilation or not. */
5246 if (n_infiles
!= 0 && n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
5247 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
5249 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
5250 environment variable. */
5251 if (compare_debug
== 2 || compare_debug
== 3)
5253 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
5254 save_switch (opt
, 0, NULL
, false, true);
5258 /* Ensure we only invoke each subprocess once. */
5260 && (print_subprocess_help
|| print_help_list
|| print_version
))
5262 /* Create a dummy input file, so that we can pass
5263 the help option on to the various sub-processes. */
5264 add_infile ("help-dummy", "c");
5267 /* Decide if undefined variable references are allowed in specs. */
5269 /* -v alone is safe. --version and --help alone or together are safe. Note
5270 that -v would make them unsafe, as they'd then be run for subprocesses as
5271 well, the location of which might depend on variables possibly coming
5272 from self-specs. Note also that the command name is counted in
5273 decoded_options_count. */
5275 unsigned help_version_count
= 0;
5278 help_version_count
++;
5280 if (print_help_list
)
5281 help_version_count
++;
5283 spec_undefvar_allowed
=
5284 ((verbose_flag
&& decoded_options_count
== 2)
5285 || help_version_count
== decoded_options_count
- 1);
5288 switches
[n_switches
].part1
= 0;
5290 infiles
[n_infiles
].name
= 0;
5293 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
5294 and place that in the environment. */
5297 set_collect_gcc_options (void)
5302 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5304 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
5305 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5308 for (i
= 0; (int) i
< n_switches
; i
++)
5310 const char *const *args
;
5313 obstack_grow (&collect_obstack
, " ", 1);
5317 /* Ignore elided switches. */
5318 if ((switches
[i
].live_cond
5319 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
5323 obstack_grow (&collect_obstack
, "'-", 2);
5324 q
= switches
[i
].part1
;
5325 while ((p
= strchr (q
, '\'')))
5327 obstack_grow (&collect_obstack
, q
, p
- q
);
5328 obstack_grow (&collect_obstack
, "'\\''", 4);
5331 obstack_grow (&collect_obstack
, q
, strlen (q
));
5332 obstack_grow (&collect_obstack
, "'", 1);
5334 for (args
= switches
[i
].args
; args
&& *args
; args
++)
5336 obstack_grow (&collect_obstack
, " '", 2);
5338 while ((p
= strchr (q
, '\'')))
5340 obstack_grow (&collect_obstack
, q
, p
- q
);
5341 obstack_grow (&collect_obstack
, "'\\''", 4);
5344 obstack_grow (&collect_obstack
, q
, strlen (q
));
5345 obstack_grow (&collect_obstack
, "'", 1);
5352 obstack_grow (&collect_obstack
, " ", 1);
5355 obstack_grow (&collect_obstack
, "'-dumpdir' '", 12);
5359 while ((p
= strchr (q
, '\'')))
5361 obstack_grow (&collect_obstack
, q
, p
- q
);
5362 obstack_grow (&collect_obstack
, "'\\''", 4);
5365 obstack_grow (&collect_obstack
, q
, strlen (q
));
5367 obstack_grow (&collect_obstack
, "'", 1);
5370 obstack_grow (&collect_obstack
, "\0", 1);
5371 xputenv (XOBFINISH (&collect_obstack
, char *));
5374 /* Process a spec string, accumulating and running commands. */
5376 /* These variables describe the input file name.
5377 input_file_number is the index on outfiles of this file,
5378 so that the output file name can be stored for later use by %o.
5379 input_basename is the start of the part of the input file
5380 sans all directory names, and basename_length is the number
5381 of characters starting there excluding the suffix .c or whatever. */
5383 static const char *gcc_input_filename
;
5384 static int input_file_number
;
5385 size_t input_filename_length
;
5386 static int basename_length
;
5387 static int suffixed_basename_length
;
5388 static const char *input_basename
;
5389 static const char *input_suffix
;
5390 #ifndef HOST_LACKS_INODE_NUMBERS
5391 static struct stat input_stat
;
5393 static int input_stat_set
;
5395 /* The compiler used to process the current input file. */
5396 static struct compiler
*input_file_compiler
;
5398 /* These are variables used within do_spec and do_spec_1. */
5400 /* Nonzero if an arg has been started and not yet terminated
5401 (with space, tab or newline). */
5402 static int arg_going
;
5404 /* Nonzero means %d or %g has been seen; the next arg to be terminated
5405 is a temporary file name. */
5406 static int delete_this_arg
;
5408 /* Nonzero means %w has been seen; the next arg to be terminated
5409 is the output file name of this compilation. */
5410 static int this_is_output_file
;
5412 /* Nonzero means %s has been seen; the next arg to be terminated
5413 is the name of a library file and we should try the standard
5414 search dirs for it. */
5415 static int this_is_library_file
;
5417 /* Nonzero means %T has been seen; the next arg to be terminated
5418 is the name of a linker script and we should try all of the
5419 standard search dirs for it. If it is found insert a --script
5420 command line switch and then substitute the full path in place,
5421 otherwise generate an error message. */
5422 static int this_is_linker_script
;
5424 /* Nonzero means that the input of this command is coming from a pipe. */
5425 static int input_from_pipe
;
5427 /* Nonnull means substitute this for any suffix when outputting a switches
5429 static const char *suffix_subst
;
5431 /* If there is an argument being accumulated, terminate it and store it. */
5434 end_going_arg (void)
5440 obstack_1grow (&obstack
, 0);
5441 string
= XOBFINISH (&obstack
, const char *);
5442 if (this_is_library_file
)
5443 string
= find_file (string
);
5444 if (this_is_linker_script
)
5446 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
5448 if (full_script_path
== NULL
)
5450 error ("unable to locate default linker script %qs in the library search paths", string
);
5451 /* Script was not found on search path. */
5454 store_arg ("--script", false, false);
5455 string
= full_script_path
;
5457 store_arg (string
, delete_this_arg
, this_is_output_file
);
5458 if (this_is_output_file
)
5459 outfiles
[input_file_number
] = string
;
5465 /* Parse the WRAPPER string which is a comma separated list of the command line
5466 and insert them into the beginning of argbuf. */
5469 insert_wrapper (const char *wrapper
)
5473 char *buf
= xstrdup (wrapper
);
5475 unsigned int old_length
= argbuf
.length ();
5483 while ((p
= strchr (p
, ',')) != NULL
);
5485 argbuf
.safe_grow (old_length
+ n
, true);
5486 memmove (argbuf
.address () + n
,
5488 old_length
* sizeof (const_char_p
));
5502 while ((p
= strchr (p
, ',')) != NULL
);
5503 gcc_assert (i
== n
);
5506 /* Process the spec SPEC and run the commands specified therein.
5507 Returns 0 if the spec is successfully processed; -1 if failed. */
5510 do_spec (const char *spec
)
5514 value
= do_spec_2 (spec
, NULL
);
5516 /* Force out any unfinished command.
5517 If -pipe, this forces out the last command if it ended in `|'. */
5520 if (argbuf
.length () > 0
5521 && !strcmp (argbuf
.last (), "|"))
5524 set_collect_gcc_options ();
5526 if (argbuf
.length () > 0)
5533 /* Process the spec SPEC, with SOFT_MATCHED_PART designating the current value
5534 of a matched * pattern which may be re-injected by way of %*. */
5537 do_spec_2 (const char *spec
, const char *soft_matched_part
)
5543 delete_this_arg
= 0;
5544 this_is_output_file
= 0;
5545 this_is_library_file
= 0;
5546 this_is_linker_script
= 0;
5547 input_from_pipe
= 0;
5548 suffix_subst
= NULL
;
5550 result
= do_spec_1 (spec
, 0, soft_matched_part
);
5557 /* Process the given spec string and add any new options to the end
5558 of the switches/n_switches array. */
5561 do_option_spec (const char *name
, const char *spec
)
5563 unsigned int i
, value_count
, value_len
;
5564 const char *p
, *q
, *value
;
5565 char *tmp_spec
, *tmp_spec_p
;
5567 if (configure_default_options
[0].name
== NULL
)
5570 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
5571 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
5573 if (i
== ARRAY_SIZE (configure_default_options
))
5576 value
= configure_default_options
[i
].value
;
5577 value_len
= strlen (value
);
5579 /* Compute the size of the final spec. */
5582 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
5588 /* Replace each %(VALUE) by the specified value. */
5589 tmp_spec
= (char *) alloca (strlen (spec
) + 1
5590 + value_count
* (value_len
- strlen ("%(VALUE)")));
5591 tmp_spec_p
= tmp_spec
;
5593 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
5595 memcpy (tmp_spec_p
, q
, p
- q
);
5596 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
5597 memcpy (tmp_spec_p
, value
, value_len
);
5598 tmp_spec_p
+= value_len
;
5599 q
= p
+ strlen ("%(VALUE)");
5601 strcpy (tmp_spec_p
, q
);
5603 do_self_spec (tmp_spec
);
5606 /* Process the given spec string and add any new options to the end
5607 of the switches/n_switches array. */
5610 do_self_spec (const char *spec
)
5614 do_spec_2 (spec
, NULL
);
5615 do_spec_1 (" ", 0, NULL
);
5617 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
5618 do_self_specs adds the replacements to switches array, so it shouldn't
5619 be processed afterwards. */
5620 for (i
= 0; i
< n_switches
; i
++)
5621 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
5622 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
5624 if (argbuf
.length () > 0)
5626 const char **argbuf_copy
;
5627 struct cl_decoded_option
*decoded_options
;
5628 struct cl_option_handlers handlers
;
5629 unsigned int decoded_options_count
;
5632 /* Create a copy of argbuf with a dummy argv[0] entry for
5633 decode_cmdline_options_to_array. */
5634 argbuf_copy
= XNEWVEC (const char *,
5635 argbuf
.length () + 1);
5636 argbuf_copy
[0] = "";
5637 memcpy (argbuf_copy
+ 1, argbuf
.address (),
5638 argbuf
.length () * sizeof (const char *));
5640 decode_cmdline_options_to_array (argbuf
.length () + 1,
5642 CL_DRIVER
, &decoded_options
,
5643 &decoded_options_count
);
5646 set_option_handlers (&handlers
);
5648 for (j
= 1; j
< decoded_options_count
; j
++)
5650 switch (decoded_options
[j
].opt_index
)
5652 case OPT_SPECIAL_input_file
:
5653 /* Specs should only generate options, not input
5655 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
5656 fatal_error (input_location
,
5657 "switch %qs does not start with %<-%>",
5658 decoded_options
[j
].arg
);
5660 fatal_error (input_location
,
5661 "spec-generated switch is just %<-%>");
5664 case OPT_fcompare_debug_second
:
5665 case OPT_fcompare_debug
:
5666 case OPT_fcompare_debug_
:
5668 /* Avoid duplicate processing of some options from
5669 compare-debug specs; just save them here. */
5670 save_switch (decoded_options
[j
].canonical_option
[0],
5671 (decoded_options
[j
].canonical_option_num_elements
5673 &decoded_options
[j
].canonical_option
[1], false, true);
5677 read_cmdline_option (&global_options
, &global_options_set
,
5678 decoded_options
+ j
, UNKNOWN_LOCATION
,
5679 CL_DRIVER
, &handlers
, global_dc
);
5684 free (decoded_options
);
5687 switches
[n_switches
].part1
= 0;
5691 /* Callback for processing %D and %I specs. */
5693 struct spec_path_info
{
5698 bool separate_options
;
5702 spec_path (char *path
, void *data
)
5704 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
5708 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
5711 if (info
->append_len
!= 0)
5713 len
= strlen (path
);
5714 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
5717 if (!is_directory (path
, true))
5720 do_spec_1 (info
->option
, 1, NULL
);
5721 if (info
->separate_options
)
5722 do_spec_1 (" ", 0, NULL
);
5724 if (info
->append_len
== 0)
5726 len
= strlen (path
);
5727 save
= path
[len
- 1];
5728 if (IS_DIR_SEPARATOR (path
[len
- 1]))
5729 path
[len
- 1] = '\0';
5732 do_spec_1 (path
, 1, NULL
);
5733 do_spec_1 (" ", 0, NULL
);
5735 /* Must not damage the original path. */
5736 if (info
->append_len
== 0)
5737 path
[len
- 1] = save
;
5742 /* True if we should compile INFILE. */
5745 compile_input_file_p (struct infile
*infile
)
5747 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5748 if (infile
->incompiler
== input_file_compiler
)
5753 /* Process each member of VEC as a spec. */
5756 do_specs_vec (vec
<char_p
> vec
)
5761 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
5763 do_spec_1 (opt
, 1, NULL
);
5764 /* Make each accumulated option a separate argument. */
5765 do_spec_1 (" ", 0, NULL
);
5769 /* Add options passed via -Xassembler or -Wa to COLLECT_AS_OPTIONS. */
5772 putenv_COLLECT_AS_OPTIONS (vec
<char_p
> vec
)
5774 if (vec
.is_empty ())
5777 obstack_init (&collect_obstack
);
5778 obstack_grow (&collect_obstack
, "COLLECT_AS_OPTIONS=",
5779 strlen ("COLLECT_AS_OPTIONS="));
5784 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
5786 obstack_1grow (&collect_obstack
, '\'');
5787 obstack_grow (&collect_obstack
, opt
, strlen (opt
));
5788 obstack_1grow (&collect_obstack
, '\'');
5789 if (ix
< vec
.length () - 1)
5790 obstack_1grow(&collect_obstack
, ' ');
5793 obstack_1grow (&collect_obstack
, '\0');
5794 xputenv (XOBFINISH (&collect_obstack
, char *));
5797 /* Process the sub-spec SPEC as a portion of a larger spec.
5798 This is like processing a whole spec except that we do
5799 not initialize at the beginning and we do not supply a
5800 newline by default at the end.
5801 INSWITCH nonzero means don't process %-sequences in SPEC;
5802 in this case, % is treated as an ordinary character.
5803 This is used while substituting switches.
5804 INSWITCH nonzero also causes SPC not to terminate an argument.
5806 Value is zero unless a line was finished
5807 and the command on that line reported an error. */
5810 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5812 const char *p
= spec
;
5817 /* If it's an empty string argument to a switch, keep it as is. */
5818 if (inswitch
&& !*p
)
5822 /* If substituting a switch, treat all chars like letters.
5823 Otherwise, NL, SPC, TAB and % are special. */
5824 switch (inswitch
? 'a' : c
)
5829 if (argbuf
.length () > 0
5830 && !strcmp (argbuf
.last (), "|"))
5832 /* A `|' before the newline means use a pipe here,
5833 but only if -pipe was specified.
5834 Otherwise, execute now and don't pass the `|' as an arg. */
5837 input_from_pipe
= 1;
5844 set_collect_gcc_options ();
5846 if (argbuf
.length () > 0)
5852 /* Reinitialize for a new command, and for a new argument. */
5855 delete_this_arg
= 0;
5856 this_is_output_file
= 0;
5857 this_is_library_file
= 0;
5858 this_is_linker_script
= 0;
5859 input_from_pipe
= 0;
5866 obstack_1grow (&obstack
, c
);
5874 /* Reinitialize for a new argument. */
5875 delete_this_arg
= 0;
5876 this_is_output_file
= 0;
5877 this_is_library_file
= 0;
5878 this_is_linker_script
= 0;
5885 fatal_error (input_location
, "spec %qs invalid", spec
);
5888 /* Don't use %b in the linker command. */
5889 gcc_assert (suffixed_basename_length
);
5890 if (!this_is_output_file
&& dumpdir_length
)
5891 obstack_grow (&obstack
, dumpdir
, dumpdir_length
);
5892 if (this_is_output_file
|| !outbase_length
)
5893 obstack_grow (&obstack
, input_basename
, basename_length
);
5895 obstack_grow (&obstack
, outbase
, outbase_length
);
5896 if (compare_debug
< 0)
5897 obstack_grow (&obstack
, ".gk", 3);
5902 /* Don't use %B in the linker command. */
5903 gcc_assert (suffixed_basename_length
);
5904 if (!this_is_output_file
&& dumpdir_length
)
5905 obstack_grow (&obstack
, dumpdir
, dumpdir_length
);
5906 if (this_is_output_file
|| !outbase_length
)
5907 obstack_grow (&obstack
, input_basename
, basename_length
);
5909 obstack_grow (&obstack
, outbase
, outbase_length
);
5910 if (compare_debug
< 0)
5911 obstack_grow (&obstack
, ".gk", 3);
5912 obstack_grow (&obstack
, input_basename
+ basename_length
,
5913 suffixed_basename_length
- basename_length
);
5919 delete_this_arg
= 2;
5922 /* Dump out the directories specified with LIBRARY_PATH,
5923 followed by the absolute directories
5924 that we search for startfiles. */
5927 struct spec_path_info info
;
5930 info
.append_len
= 0;
5931 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5932 /* Used on systems which record the specified -L dirs
5933 and use them to search for dynamic linking.
5934 Relative directories always come from -B,
5935 and it is better not to use them for searching
5936 at run time. In particular, stage1 loses. */
5937 info
.omit_relative
= true;
5939 info
.omit_relative
= false;
5941 info
.separate_options
= false;
5943 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5948 /* %efoo means report an error with `foo' as error message
5949 and don't execute any more commands for this file. */
5953 while (*p
!= 0 && *p
!= '\n')
5955 buf
= (char *) alloca (p
- q
+ 1);
5956 strncpy (buf
, q
, p
- q
);
5958 error ("%s", _(buf
));
5963 /* %nfoo means report a notice with `foo' on stderr. */
5967 while (*p
!= 0 && *p
!= '\n')
5969 buf
= (char *) alloca (p
- q
+ 1);
5970 strncpy (buf
, q
, p
- q
);
5972 inform (UNKNOWN_LOCATION
, "%s", _(buf
));
5982 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5983 defined, and it is not a directory, and it is
5984 writable, use it. Otherwise, treat this like any
5985 other temporary file. */
5987 if ((!save_temps_flag
)
5988 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5989 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5991 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5992 strlen (HOST_BIT_BUCKET
));
5993 delete_this_arg
= 0;
5998 goto create_temp_file
;
6002 obstack_1grow (&obstack
, '-');
6003 delete_this_arg
= 0;
6006 /* consume suffix */
6007 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
6009 if (p
[0] == '%' && p
[1] == 'O')
6014 goto create_temp_file
;
6018 /* consume suffix */
6019 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
6021 if (p
[0] == '%' && p
[1] == 'O')
6026 goto create_temp_file
;
6032 struct temp_name
*t
;
6034 const char *suffix
= p
;
6035 char *saved_suffix
= NULL
;
6037 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
6039 suffix_length
= p
- suffix
;
6040 if (p
[0] == '%' && p
[1] == 'O')
6043 /* We don't support extra suffix characters after %O. */
6044 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
6045 fatal_error (input_location
,
6046 "spec %qs has invalid %<%%0%c%>", spec
, *p
);
6047 if (suffix_length
== 0)
6048 suffix
= TARGET_OBJECT_SUFFIX
;
6052 = XNEWVEC (char, suffix_length
6053 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
6054 strncpy (saved_suffix
, suffix
, suffix_length
);
6055 strcpy (saved_suffix
+ suffix_length
,
6056 TARGET_OBJECT_SUFFIX
);
6058 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
6061 if (compare_debug
< 0)
6063 suffix
= concat (".gk", suffix
, NULL
);
6067 /* If -save-temps was specified, use that for the
6069 if (save_temps_flag
)
6072 bool adjusted_suffix
= false;
6074 && !outbase_length
&& !basename_length
6075 && !dumpdir_trailing_dash_added
)
6077 adjusted_suffix
= true;
6081 temp_filename_length
6082 = dumpdir_length
+ suffix_length
+ 1;
6084 temp_filename_length
+= outbase_length
;
6086 temp_filename_length
+= basename_length
;
6087 tmp
= (char *) alloca (temp_filename_length
);
6089 memcpy (tmp
, dumpdir
, dumpdir_length
);
6091 memcpy (tmp
+ dumpdir_length
, outbase
,
6093 else if (basename_length
)
6094 memcpy (tmp
+ dumpdir_length
, input_basename
,
6096 memcpy (tmp
+ temp_filename_length
- suffix_length
- 1,
6097 suffix
, suffix_length
);
6098 if (adjusted_suffix
)
6100 adjusted_suffix
= false;
6104 tmp
[temp_filename_length
- 1] = '\0';
6105 temp_filename
= tmp
;
6107 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
6109 #ifndef HOST_LACKS_INODE_NUMBERS
6110 struct stat st_temp
;
6112 /* Note, set_input() resets input_stat_set to 0. */
6113 if (input_stat_set
== 0)
6115 input_stat_set
= stat (gcc_input_filename
,
6117 if (input_stat_set
>= 0)
6121 /* If we have the stat for the gcc_input_filename
6122 and we can do the stat for the temp_filename
6123 then the they could still refer to the same
6124 file if st_dev/st_ino's are the same. */
6125 if (input_stat_set
!= 1
6126 || stat (temp_filename
, &st_temp
) < 0
6127 || input_stat
.st_dev
!= st_temp
.st_dev
6128 || input_stat
.st_ino
!= st_temp
.st_ino
)
6130 /* Just compare canonical pathnames. */
6131 char* input_realname
= lrealpath (gcc_input_filename
);
6132 char* temp_realname
= lrealpath (temp_filename
);
6133 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
6134 free (input_realname
);
6135 free (temp_realname
);
6140 = save_string (temp_filename
,
6141 temp_filename_length
- 1);
6142 obstack_grow (&obstack
, temp_filename
,
6143 temp_filename_length
);
6145 delete_this_arg
= 0;
6151 /* See if we already have an association of %g/%u/%U and
6153 for (t
= temp_names
; t
; t
= t
->next
)
6154 if (t
->length
== suffix_length
6155 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
6156 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
6159 /* Make a new association if needed. %u and %j
6161 if (t
== 0 || c
== 'u' || c
== 'j')
6165 t
= XNEW (struct temp_name
);
6166 t
->next
= temp_names
;
6169 t
->length
= suffix_length
;
6172 t
->suffix
= saved_suffix
;
6173 saved_suffix
= NULL
;
6176 t
->suffix
= save_string (suffix
, suffix_length
);
6177 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
6178 temp_filename
= make_temp_file (t
->suffix
);
6179 temp_filename_length
= strlen (temp_filename
);
6180 t
->filename
= temp_filename
;
6181 t
->filename_length
= temp_filename_length
;
6184 free (saved_suffix
);
6186 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
6187 delete_this_arg
= 1;
6195 /* We are going to expand `%i' into `@FILE', where FILE
6196 is a newly-created temporary filename. The filenames
6197 that would usually be expanded in place of %o will be
6198 written to the temporary file. */
6199 if (at_file_supplied
)
6202 for (i
= 0; (int) i
< n_infiles
; i
++)
6203 if (compile_input_file_p (&infiles
[i
]))
6205 store_arg (infiles
[i
].name
, 0, 0);
6206 infiles
[i
].compiled
= true;
6209 if (at_file_supplied
)
6214 obstack_grow (&obstack
, gcc_input_filename
,
6215 input_filename_length
);
6222 struct spec_path_info info
;
6226 do_spec_1 ("-imultilib", 1, NULL
);
6227 /* Make this a separate argument. */
6228 do_spec_1 (" ", 0, NULL
);
6229 do_spec_1 (multilib_dir
, 1, NULL
);
6230 do_spec_1 (" ", 0, NULL
);
6235 do_spec_1 ("-imultiarch", 1, NULL
);
6236 /* Make this a separate argument. */
6237 do_spec_1 (" ", 0, NULL
);
6238 do_spec_1 (multiarch_dir
, 1, NULL
);
6239 do_spec_1 (" ", 0, NULL
);
6242 if (gcc_exec_prefix
)
6244 do_spec_1 ("-iprefix", 1, NULL
);
6245 /* Make this a separate argument. */
6246 do_spec_1 (" ", 0, NULL
);
6247 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
6248 do_spec_1 (" ", 0, NULL
);
6251 if (target_system_root_changed
||
6252 (target_system_root
&& target_sysroot_hdrs_suffix
))
6254 do_spec_1 ("-isysroot", 1, NULL
);
6255 /* Make this a separate argument. */
6256 do_spec_1 (" ", 0, NULL
);
6257 do_spec_1 (target_system_root
, 1, NULL
);
6258 if (target_sysroot_hdrs_suffix
)
6259 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
6260 do_spec_1 (" ", 0, NULL
);
6263 info
.option
= "-isystem";
6264 info
.append
= "include";
6265 info
.append_len
= strlen (info
.append
);
6266 info
.omit_relative
= false;
6267 info
.separate_options
= true;
6269 for_each_path (&include_prefixes
, false, info
.append_len
,
6272 info
.append
= "include-fixed";
6273 if (*sysroot_hdrs_suffix_spec
)
6274 info
.append
= concat (info
.append
, dir_separator_str
,
6275 multilib_dir
, NULL
);
6276 info
.append_len
= strlen (info
.append
);
6277 for_each_path (&include_prefixes
, false, info
.append_len
,
6283 /* We are going to expand `%o' into `@FILE', where FILE
6284 is a newly-created temporary filename. The filenames
6285 that would usually be expanded in place of %o will be
6286 written to the temporary file. */
6287 if (at_file_supplied
)
6290 for (i
= 0; i
< n_infiles
+ lang_specific_extra_outfiles
; i
++)
6292 store_arg (outfiles
[i
], 0, 0);
6294 if (at_file_supplied
)
6299 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
6304 this_is_library_file
= 1;
6308 this_is_linker_script
= 1;
6312 outfiles
[input_file_number
] = NULL
;
6316 this_is_output_file
= 1;
6321 unsigned int cur_index
= argbuf
.length ();
6322 /* Handle the {...} following the %W. */
6324 fatal_error (input_location
,
6325 "spec %qs has invalid %<%%W%c%>", spec
, *p
);
6326 p
= handle_braces (p
+ 1);
6330 /* If any args were output, mark the last one for deletion
6332 if (argbuf
.length () != cur_index
)
6333 record_temp_file (argbuf
.last (), 0, 1);
6338 /* Handle the {...} following the %@. */
6340 fatal_error (input_location
,
6341 "spec %qs has invalid %<%%@%c%>", spec
, *p
);
6342 if (at_file_supplied
)
6344 p
= handle_braces (p
+ 1);
6345 if (at_file_supplied
)
6351 /* %x{OPTION} records OPTION for %X to output. */
6359 /* Skip past the option value and make a copy. */
6361 fatal_error (input_location
,
6362 "spec %qs has invalid %<%%x%c%>", spec
, *p
);
6365 string
= save_string (p1
+ 1, p
- p1
- 2);
6367 /* See if we already recorded this option. */
6368 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
6369 if (! strcmp (string
, opt
))
6375 /* This option is new; add it. */
6376 add_linker_option (string
, strlen (string
));
6381 /* Dump out the options accumulated previously using %x. */
6383 do_specs_vec (linker_options
);
6386 /* Dump out the options accumulated previously using -Wa,. */
6388 do_specs_vec (assembler_options
);
6391 /* Dump out the options accumulated previously using -Wp,. */
6393 do_specs_vec (preprocessor_options
);
6396 /* Here are digits and numbers that just process
6397 a certain constant string as a spec. */
6400 value
= do_spec_1 (cc1_spec
, 0, NULL
);
6406 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
6412 value
= do_spec_1 (asm_spec
, 0, NULL
);
6418 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
6425 const char *const spec
6426 = (input_file_compiler
->cpp_spec
6427 ? input_file_compiler
->cpp_spec
6429 value
= do_spec_1 (spec
, 0, NULL
);
6436 value
= do_spec_1 (endfile_spec
, 0, NULL
);
6442 value
= do_spec_1 (link_spec
, 0, NULL
);
6448 value
= do_spec_1 (lib_spec
, 0, NULL
);
6454 if (multilib_os_dir
== NULL
)
6455 obstack_1grow (&obstack
, '.');
6457 obstack_grow (&obstack
, multilib_os_dir
,
6458 strlen (multilib_os_dir
));
6462 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
6468 /* We assume there is a directory
6469 separator at the end of this string. */
6470 if (target_system_root
)
6472 obstack_grow (&obstack
, target_system_root
,
6473 strlen (target_system_root
));
6474 if (target_sysroot_suffix
)
6475 obstack_grow (&obstack
, target_sysroot_suffix
,
6476 strlen (target_sysroot_suffix
));
6481 value
= do_spec_1 (startfile_spec
, 0, NULL
);
6486 /* Here we define characters other than letters and digits. */
6489 p
= handle_braces (p
);
6495 p
= handle_spec_function (p
, NULL
, soft_matched_part
);
6501 obstack_1grow (&obstack
, '%');
6508 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
6510 suffix_subst
= save_string (p
- 1, len
+ 1);
6515 /* Henceforth ignore the option(s) matching the pattern
6521 int have_wildcard
= 0;
6526 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
6528 switch_option
= SWITCH_IGNORE
;
6530 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
6533 if (p
[len
-1] == '*')
6536 for (i
= 0; i
< n_switches
; i
++)
6537 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
6538 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
6540 switches
[i
].live_cond
|= switch_option
;
6541 /* User switch be validated from validate_all_switches.
6542 when the definition is seen from the spec file.
6543 If not defined anywhere, will be rejected. */
6544 if (switches
[i
].known
)
6545 switches
[i
].validated
= true;
6553 if (soft_matched_part
)
6555 if (soft_matched_part
[0])
6556 do_spec_1 (soft_matched_part
, 1, NULL
);
6557 /* Only insert a space after the substitution if it is at the
6558 end of the current sequence. So if:
6560 "%{foo=*:bar%*}%{foo=*:one%*two}"
6562 matches -foo=hello then it will produce:
6564 barhello onehellotwo
6566 if (*p
== 0 || *p
== '}')
6567 do_spec_1 (" ", 0, NULL
);
6570 /* Catch the case where a spec string contains something like
6571 '%{foo:%*}'. i.e. there is no * in the pattern on the left
6572 hand side of the :. */
6573 error ("spec failure: %<%%*%> has not been initialized by pattern match");
6576 /* Process a string found as the value of a spec given by name.
6577 This feature allows individual machine descriptions
6578 to add and use their own specs. */
6581 const char *name
= p
;
6582 struct spec_list
*sl
;
6585 /* The string after the S/P is the name of a spec that is to be
6587 while (*p
&& *p
!= ')')
6590 /* See if it's in the list. */
6591 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
6592 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
6594 name
= *(sl
->ptr_spec
);
6596 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
6604 value
= do_spec_1 (name
, 0, NULL
);
6609 /* Discard the closing paren. */
6616 /* End a previous argument, if there is one, then issue an
6624 error ("spec failure: unrecognized spec option %qc", c
);
6630 /* Backslash: treat next character as ordinary. */
6633 /* When adding more cases that previously matched default, make
6634 sure to adjust quote_spec_char_p as well. */
6638 /* Ordinary character: put it into the current argument. */
6639 obstack_1grow (&obstack
, c
);
6643 /* End of string. If we are processing a spec function, we need to
6644 end any pending argument. */
6645 if (processing_spec_function
)
6651 /* Look up a spec function. */
6653 static const struct spec_function
*
6654 lookup_spec_function (const char *name
)
6656 const struct spec_function
*sf
;
6658 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
6659 if (strcmp (sf
->name
, name
) == 0)
6665 /* Evaluate a spec function. */
6668 eval_spec_function (const char *func
, const char *args
,
6669 const char *soft_matched_part
)
6671 const struct spec_function
*sf
;
6672 const char *funcval
;
6674 /* Saved spec processing context. */
6675 vec
<const_char_p
> save_argbuf
;
6678 int save_delete_this_arg
;
6679 int save_this_is_output_file
;
6680 int save_this_is_library_file
;
6681 int save_input_from_pipe
;
6682 int save_this_is_linker_script
;
6683 const char *save_suffix_subst
;
6685 int save_growing_size
;
6686 void *save_growing_value
= NULL
;
6688 sf
= lookup_spec_function (func
);
6690 fatal_error (input_location
, "unknown spec function %qs", func
);
6692 /* Push the spec processing context. */
6693 save_argbuf
= argbuf
;
6695 save_arg_going
= arg_going
;
6696 save_delete_this_arg
= delete_this_arg
;
6697 save_this_is_output_file
= this_is_output_file
;
6698 save_this_is_library_file
= this_is_library_file
;
6699 save_this_is_linker_script
= this_is_linker_script
;
6700 save_input_from_pipe
= input_from_pipe
;
6701 save_suffix_subst
= suffix_subst
;
6703 /* If we have some object growing now, finalize it so the args and function
6704 eval proceed from a cleared context. This is needed to prevent the first
6705 constructed arg from mistakenly including the growing value. We'll push
6706 this value back on the obstack once the function evaluation is done, to
6707 restore a consistent processing context for our caller. This is fine as
6708 the address of growing objects isn't guaranteed to remain stable until
6709 they are finalized, and we expect this situation to be rare enough for
6710 the extra copy not to be an issue. */
6711 save_growing_size
= obstack_object_size (&obstack
);
6712 if (save_growing_size
> 0)
6713 save_growing_value
= obstack_finish (&obstack
);
6715 /* Create a new spec processing context, and build the function
6719 if (do_spec_2 (args
, soft_matched_part
) < 0)
6720 fatal_error (input_location
, "error in arguments to spec function %qs",
6723 /* argbuf_index is an index for the next argument to be inserted, and
6724 so contains the count of the args already inserted. */
6726 funcval
= (*sf
->func
) (argbuf
.length (),
6729 /* Pop the spec processing context. */
6731 argbuf
= save_argbuf
;
6733 arg_going
= save_arg_going
;
6734 delete_this_arg
= save_delete_this_arg
;
6735 this_is_output_file
= save_this_is_output_file
;
6736 this_is_library_file
= save_this_is_library_file
;
6737 this_is_linker_script
= save_this_is_linker_script
;
6738 input_from_pipe
= save_input_from_pipe
;
6739 suffix_subst
= save_suffix_subst
;
6741 if (save_growing_size
> 0)
6742 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
6747 /* Handle a spec function call of the form:
6751 ARGS is processed as a spec in a separate context and split into an
6752 argument vector in the normal fashion. The function returns a string
6753 containing a spec which we then process in the caller's context, or
6754 NULL if no processing is required.
6756 If RETVAL_NONNULL is not NULL, then store a bool whether function
6759 SOFT_MATCHED_PART holds the current value of a matched * pattern, which
6760 may be re-expanded with a %* as part of the function arguments. */
6763 handle_spec_function (const char *p
, bool *retval_nonnull
,
6764 const char *soft_matched_part
)
6767 const char *endp
, *funcval
;
6770 processing_spec_function
++;
6772 /* Get the function name. */
6773 for (endp
= p
; *endp
!= '\0'; endp
++)
6775 if (*endp
== '(') /* ) */
6777 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6778 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6779 fatal_error (input_location
, "malformed spec function name");
6781 if (*endp
!= '(') /* ) */
6782 fatal_error (input_location
, "no arguments for spec function");
6783 func
= save_string (p
, endp
- p
);
6786 /* Get the arguments. */
6787 for (count
= 0; *endp
!= '\0'; endp
++)
6796 else if (*endp
== '(') /* ) */
6801 fatal_error (input_location
, "malformed spec function arguments");
6802 args
= save_string (p
, endp
- p
);
6805 /* p now points to just past the end of the spec function expression. */
6807 funcval
= eval_spec_function (func
, args
, soft_matched_part
);
6808 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6811 *retval_nonnull
= funcval
!= NULL
;
6816 processing_spec_function
--;
6821 /* Inline subroutine of handle_braces. Returns true if the current
6822 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6824 input_suffix_matches (const char *atom
, const char *end_atom
)
6826 return (input_suffix
6827 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6828 && input_suffix
[end_atom
- atom
] == '\0');
6831 /* Subroutine of handle_braces. Returns true if the current
6832 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6834 input_spec_matches (const char *atom
, const char *end_atom
)
6836 return (input_file_compiler
6837 && input_file_compiler
->suffix
6838 && input_file_compiler
->suffix
[0] != '\0'
6839 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6841 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6844 /* Subroutine of handle_braces. Returns true if a switch
6845 matching the atom bracketed by ATOM and END_ATOM appeared on the
6848 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6851 int len
= end_atom
- atom
;
6852 int plen
= starred
? len
: -1;
6854 for (i
= 0; i
< n_switches
; i
++)
6855 if (!strncmp (switches
[i
].part1
, atom
, len
)
6856 && (starred
|| switches
[i
].part1
[len
] == '\0')
6857 && check_live_switch (i
, plen
))
6860 /* Check if a switch with separated form matching the atom.
6861 We check -D and -U switches. */
6862 else if (switches
[i
].args
!= 0)
6864 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
6865 && *switches
[i
].part1
== atom
[0])
6867 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
6868 && (starred
|| (switches
[i
].part1
[1] == '\0'
6869 && switches
[i
].args
[0][len
- 1] == '\0'))
6870 && check_live_switch (i
, (starred
? 1 : -1)))
6878 /* Inline subroutine of handle_braces. Mark all of the switches which
6879 match ATOM (extends to END_ATOM; STARRED indicates whether there
6880 was a star after the atom) for later processing. */
6882 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6885 int len
= end_atom
- atom
;
6886 int plen
= starred
? len
: -1;
6888 for (i
= 0; i
< n_switches
; i
++)
6889 if (!strncmp (switches
[i
].part1
, atom
, len
)
6890 && (starred
|| switches
[i
].part1
[len
] == '\0')
6891 && check_live_switch (i
, plen
))
6892 switches
[i
].ordering
= 1;
6895 /* Inline subroutine of handle_braces. Process all the currently
6896 marked switches through give_switch, and clear the marks. */
6898 process_marked_switches (void)
6902 for (i
= 0; i
< n_switches
; i
++)
6903 if (switches
[i
].ordering
== 1)
6905 switches
[i
].ordering
= 0;
6910 /* Handle a %{ ... } construct. P points just inside the leading {.
6911 Returns a pointer one past the end of the brace block, or 0
6912 if we call do_spec_1 and that returns -1. */
6915 handle_braces (const char *p
)
6917 const char *atom
, *end_atom
;
6918 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6919 char *esc_buf
= NULL
, *d_esc_buf
= NULL
;
6921 const char *orig
= p
;
6929 bool a_must_be_last
= false;
6930 bool ordered_set
= false;
6931 bool disjunct_set
= false;
6932 bool disj_matched
= false;
6933 bool disj_starred
= true;
6934 bool n_way_choice
= false;
6935 bool n_way_matched
= false;
6937 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6944 /* Scan one "atom" (S in the description above of %{}, possibly
6945 with '!', '.', '@', ',', or '*' modifiers). */
6947 a_is_suffix
= false;
6948 a_is_starred
= false;
6949 a_is_negated
= false;
6950 a_is_spectype
= false;
6954 p
++, a_is_negated
= true;
6957 if (*p
== '%' && p
[1] == ':')
6961 p
= handle_spec_function (p
+ 2, &a_matched
, NULL
);
6966 p
++, a_is_suffix
= true;
6968 p
++, a_is_spectype
= true;
6972 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
6973 || *p
== ',' || *p
== '.' || *p
== '@' || *p
== '\\')
6979 fatal_error (input_location
,
6980 "braced spec %qs ends in escape", orig
);
6992 if (esc_buf
&& esc_buf
!= d_esc_buf
)
6995 ep
= esc_buf
= (char *) xmalloc (end_atom
- atom
- esc
+ 1);
6996 for (ap
= atom
; ap
!= end_atom
; ap
++, ep
++)
7008 p
++, a_is_starred
= 1;
7015 /* Substitute the switch(es) indicated by the current atom. */
7017 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
7018 || a_is_spectype
|| atom
== end_atom
)
7021 mark_matching_switches (atom
, end_atom
, a_is_starred
);
7024 process_marked_switches ();
7028 /* Substitute some text if the current atom appears as a switch
7030 disjunct_set
= true;
7034 if (atom
&& atom
== end_atom
)
7036 if (!n_way_choice
|| disj_matched
|| *p
== '|'
7037 || a_is_negated
|| a_is_suffix
|| a_is_spectype
7041 /* An empty term may appear as the last choice of an
7042 N-way choice set; it means "otherwise". */
7043 a_must_be_last
= true;
7044 disj_matched
= !n_way_matched
;
7045 disj_starred
= false;
7049 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
7053 disj_starred
= false;
7055 /* Don't bother testing this atom if we already have a
7057 if (!disj_matched
&& !n_way_matched
)
7060 /* a_matched is already set by handle_spec_function. */;
7061 else if (a_is_suffix
)
7062 a_matched
= input_suffix_matches (atom
, end_atom
);
7063 else if (a_is_spectype
)
7064 a_matched
= input_spec_matches (atom
, end_atom
);
7066 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
7068 if (a_matched
!= a_is_negated
)
7070 disj_matched
= true;
7072 d_end_atom
= end_atom
;
7073 d_esc_buf
= esc_buf
;
7080 /* Found the body, that is, the text to substitute if the
7081 current disjunction matches. */
7082 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
7083 disj_matched
&& !n_way_matched
);
7087 /* If we have an N-way choice, reset state for the next
7091 n_way_choice
= true;
7092 n_way_matched
|= disj_matched
;
7093 disj_matched
= false;
7094 disj_starred
= true;
7095 d_atom
= d_end_atom
= NULL
;
7104 while (*p
++ != '}');
7107 if (d_esc_buf
&& d_esc_buf
!= esc_buf
)
7115 fatal_error (input_location
, "braced spec %qs is invalid at %qc", orig
, *p
);
7120 /* Subroutine of handle_braces. Scan and process a brace substitution body
7121 (X in the description of %{} syntax). P points one past the colon;
7122 ATOM and END_ATOM bracket the first atom which was found to be true
7123 (present) in the current disjunction; STARRED indicates whether all
7124 the atoms in the current disjunction were starred (for syntax validation);
7125 MATCHED indicates whether the disjunction matched or not, and therefore
7126 whether or not the body is to be processed through do_spec_1 or just
7127 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
7131 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
7132 int starred
, int matched
)
7134 const char *body
, *end_body
;
7135 unsigned int nesting_level
;
7136 bool have_subst
= false;
7138 /* Locate the closing } or ;, honoring nested braces.
7139 Trim trailing whitespace. */
7148 if (!--nesting_level
)
7151 else if (*p
== ';' && nesting_level
== 1)
7153 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
7155 else if (*p
== '\0')
7161 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
7164 if (have_subst
&& !starred
)
7169 /* Copy the substitution body to permanent storage and execute it.
7170 If have_subst is false, this is a simple matter of running the
7171 body through do_spec_1... */
7172 char *string
= save_string (body
, end_body
- body
);
7175 if (do_spec_1 (string
, 0, NULL
) < 0)
7183 /* ... but if have_subst is true, we have to process the
7184 body once for each matching switch, with %* set to the
7185 variant part of the switch. */
7186 unsigned int hard_match_len
= end_atom
- atom
;
7189 for (i
= 0; i
< n_switches
; i
++)
7190 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
7191 && check_live_switch (i
, hard_match_len
))
7193 if (do_spec_1 (string
, 0,
7194 &switches
[i
].part1
[hard_match_len
]) < 0)
7199 /* Pass any arguments this switch has. */
7201 suffix_subst
= NULL
;
7210 fatal_error (input_location
, "braced spec body %qs is invalid", body
);
7213 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
7214 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
7215 spec, or -1 if either exact match or %* is used.
7217 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
7218 whose value does not begin with "no-" is obsoleted by the same value
7219 with the "no-", similarly for a switch with the "no-" prefix. */
7222 check_live_switch (int switchnum
, int prefix_length
)
7224 const char *name
= switches
[switchnum
].part1
;
7227 /* If we already processed this switch and determined if it was
7228 live or not, return our past determination. */
7229 if (switches
[switchnum
].live_cond
!= 0)
7230 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
7231 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
7232 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
7235 /* In the common case of {<at-most-one-letter>*}, a negating
7236 switch would always match, so ignore that case. We will just
7237 send the conflicting switches to the compiler phase. */
7238 if (prefix_length
>= 0 && prefix_length
<= 1)
7241 /* Now search for duplicate in a manner that depends on the name. */
7245 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
7246 if (switches
[i
].part1
[0] == 'O')
7248 switches
[switchnum
].validated
= true;
7249 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
7254 case 'W': case 'f': case 'm': case 'g':
7255 if (! strncmp (name
+ 1, "no-", 3))
7257 /* We have Xno-YYY, search for XYYY. */
7258 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
7259 if (switches
[i
].part1
[0] == name
[0]
7260 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
7262 /* --specs are validated with the validate_switches mechanism. */
7263 if (switches
[switchnum
].known
)
7264 switches
[switchnum
].validated
= true;
7265 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
7271 /* We have XYYY, search for Xno-YYY. */
7272 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
7273 if (switches
[i
].part1
[0] == name
[0]
7274 && switches
[i
].part1
[1] == 'n'
7275 && switches
[i
].part1
[2] == 'o'
7276 && switches
[i
].part1
[3] == '-'
7277 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
7279 /* --specs are validated with the validate_switches mechanism. */
7280 if (switches
[switchnum
].known
)
7281 switches
[switchnum
].validated
= true;
7282 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
7289 /* Otherwise the switch is live. */
7290 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
7294 /* Pass a switch to the current accumulating command
7295 in the same form that we received it.
7296 SWITCHNUM identifies the switch; it is an index into
7297 the vector of switches gcc received, which is `switches'.
7298 This cannot fail since it never finishes a command line.
7300 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
7303 give_switch (int switchnum
, int omit_first_word
)
7305 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
7308 if (!omit_first_word
)
7310 do_spec_1 ("-", 0, NULL
);
7311 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
7314 if (switches
[switchnum
].args
!= 0)
7317 for (p
= switches
[switchnum
].args
; *p
; p
++)
7319 const char *arg
= *p
;
7321 do_spec_1 (" ", 0, NULL
);
7324 unsigned length
= strlen (arg
);
7327 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
7328 if (arg
[length
] == '.')
7330 (CONST_CAST (char *, arg
))[length
] = 0;
7334 do_spec_1 (arg
, 1, NULL
);
7336 (CONST_CAST (char *, arg
))[length
] = '.';
7337 do_spec_1 (suffix_subst
, 1, NULL
);
7340 do_spec_1 (arg
, 1, NULL
);
7344 do_spec_1 (" ", 0, NULL
);
7345 switches
[switchnum
].validated
= true;
7348 /* Print GCC configuration (e.g. version, thread model, target,
7349 configuration_arguments) to a given FILE. */
7352 print_configuration (FILE *file
)
7357 fnotice (file
, "Target: %s\n", spec_machine
);
7358 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
7360 #ifdef THREAD_MODEL_SPEC
7361 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7362 but there's no point in doing all this processing just to get
7363 thread_model back. */
7364 obstack_init (&obstack
);
7365 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
7366 obstack_1grow (&obstack
, '\0');
7367 thrmod
= XOBFINISH (&obstack
, const char *);
7369 thrmod
= thread_model
;
7372 fnotice (file
, "Thread model: %s\n", thrmod
);
7373 fnotice (file
, "Supported LTO compression algorithms: zlib");
7375 fnotice (file
, " zstd");
7377 fnotice (file
, "\n");
7379 /* compiler_version is truncated at the first space when initialized
7380 from version string, so truncate version_string at the first space
7381 before comparing. */
7382 for (n
= 0; version_string
[n
]; n
++)
7383 if (version_string
[n
] == ' ')
7386 if (! strncmp (version_string
, compiler_version
, n
)
7387 && compiler_version
[n
] == 0)
7388 fnotice (file
, "gcc version %s %s\n", version_string
,
7391 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n",
7392 version_string
, pkgversion_string
, compiler_version
);
7396 #define RETRY_ICE_ATTEMPTS 3
7398 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
7401 files_equal_p (char *file1
, char *file2
)
7403 struct stat st1
, st2
;
7406 const int bufsize
= 8192;
7407 char *buf
= XNEWVEC (char, bufsize
);
7409 fd1
= open (file1
, O_RDONLY
);
7410 fd2
= open (file2
, O_RDONLY
);
7412 if (fd1
< 0 || fd2
< 0)
7415 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
7418 if (st1
.st_size
!= st2
.st_size
)
7421 for (n
= st1
.st_size
; n
; n
-= len
)
7424 if ((int) len
> bufsize
/ 2)
7427 if (read (fd1
, buf
, len
) != (int) len
7428 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
7433 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
7450 /* Check that compiler's output doesn't differ across runs.
7451 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
7452 stdout and stderr for each compiler run. Return true if all of
7453 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
7456 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
7459 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
7461 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
7462 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
7464 fnotice (stderr
, "The bug is not reproducible, so it is"
7465 " likely a hardware or OS problem.\n");
7469 return i
== RETRY_ICE_ATTEMPTS
- 2;
7472 enum attempt_status
{
7473 ATTEMPT_STATUS_FAIL_TO_RUN
,
7474 ATTEMPT_STATUS_SUCCESS
,
7479 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
7480 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
7481 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
7482 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
7483 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
7484 ATTEMPT_STATUS_SUCCESS otherwise. */
7486 static enum attempt_status
7487 run_attempt (const char **new_argv
, const char *out_temp
,
7488 const char *err_temp
, int emit_system_info
, int append
)
7491 if (emit_system_info
)
7493 FILE *file_out
= fopen (err_temp
, "a");
7494 print_configuration (file_out
);
7495 fputs ("\n", file_out
);
7501 struct pex_obj
*pex
;
7503 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
7504 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
7507 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
7509 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
7511 fatal_error (input_location
, "%<pex_init%> failed: %m");
7513 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
7514 CONST_CAST2 (char *const *, const char **, &new_argv
[1]),
7515 out_temp
, err_temp
, &err
);
7519 fatal_error (input_location
,
7520 err
? G_ ("cannot execute %qs: %s: %m")
7521 : G_ ("cannot execute %qs: %s"),
7522 new_argv
[0], errmsg
);
7525 if (!pex_get_status (pex
, 1, &exit_status
))
7528 switch (WEXITSTATUS (exit_status
))
7531 status
= ATTEMPT_STATUS_ICE
;
7534 case SUCCESS_EXIT_CODE
:
7535 status
= ATTEMPT_STATUS_SUCCESS
;
7547 /* This routine reads lines from IN file, adds C++ style comments
7548 at the begining of each line and writes result into OUT. */
7551 insert_comments (const char *file_in
, const char *file_out
)
7553 FILE *in
= fopen (file_in
, "rb");
7554 FILE *out
= fopen (file_out
, "wb");
7557 bool add_comment
= true;
7558 while (fgets (line
, sizeof (line
), in
))
7563 add_comment
= strchr (line
, '\n') != NULL
;
7570 /* This routine adds preprocessed source code into the given ERR_FILE.
7571 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
7572 add information in report file. RUN_ATTEMPT should return
7573 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
7576 do_report_bug (const char **new_argv
, const int nargs
,
7577 char **out_file
, char **err_file
)
7580 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
7583 write (fd
, "\n//", 3);
7584 for (i
= 0; i
< nargs
; i
++)
7587 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
7589 write (fd
, "\n\n", 2);
7591 new_argv
[nargs
] = "-E";
7592 new_argv
[nargs
+ 1] = NULL
;
7594 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
7596 if (status
== ATTEMPT_STATUS_SUCCESS
)
7598 fnotice (stderr
, "Preprocessed source stored into %s file,"
7599 " please attach this to your bugreport.\n", *out_file
);
7600 /* Make sure it is not deleted. */
7606 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
7607 containing GCC configuration, backtrace, compiler's command line options
7608 and preprocessed source code. */
7611 try_generate_repro (const char **argv
)
7613 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
7614 const char **new_argv
;
7615 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
7616 char **temp_stdout_files
= &temp_files
[0];
7617 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
7619 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
7622 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
7623 /* Only retry compiler ICEs, not preprocessor ones. */
7624 if (! strcmp (argv
[nargs
], "-E"))
7626 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
7633 /* If the compiler is going to output any time information,
7634 it might varry between invocations. */
7635 else if (! strcmp (argv
[nargs
], "-quiet"))
7637 else if (! strcmp (argv
[nargs
], "-ftime-report"))
7640 if (out_arg
== -1 || !quiet
)
7643 memset (temp_files
, '\0', sizeof (temp_files
));
7644 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
7645 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
7646 new_argv
[nargs
++] = "-frandom-seed=0";
7647 new_argv
[nargs
++] = "-fdump-noaddr";
7648 new_argv
[nargs
] = NULL
;
7649 if (new_argv
[out_arg
][2] == '\0')
7650 new_argv
[out_arg
+ 1] = "-";
7652 new_argv
[out_arg
] = "-o-";
7655 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
7657 int emit_system_info
= 0;
7659 temp_stdout_files
[attempt
] = make_temp_file (".out");
7660 temp_stderr_files
[attempt
] = make_temp_file (".err");
7662 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
7665 emit_system_info
= 1;
7668 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
7669 temp_stderr_files
[attempt
], emit_system_info
,
7672 if (status
!= ATTEMPT_STATUS_ICE
)
7674 fnotice (stderr
, "The bug is not reproducible, so it is"
7675 " likely a hardware or OS problem.\n");
7680 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
7684 /* Insert commented out backtrace into report file. */
7685 char **stderr_commented
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
7686 insert_comments (temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
7689 /* In final attempt we append compiler options and preprocesssed code to last
7690 generated .out file with configuration and backtrace. */
7691 char **err
= &temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1];
7692 do_report_bug (new_argv
, nargs
, stderr_commented
, err
);
7696 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
7699 unlink (temp_stdout_files
[i
]);
7700 free (temp_stdout_files
[i
]);
7704 /* Search for a file named NAME trying various prefixes including the
7705 user's -B prefix and some standard ones.
7706 Return the absolute file name found. If nothing is found, return NAME. */
7709 find_file (const char *name
)
7711 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
7712 return newname
? newname
: name
;
7715 /* Determine whether a directory exists. If LINKER, return 0 for
7716 certain fixed names not needed by the linker. */
7719 is_directory (const char *path1
, bool linker
)
7726 /* Ensure the string ends with "/.". The resulting path will be a
7727 directory even if the given path is a symbolic link. */
7728 len1
= strlen (path1
);
7729 path
= (char *) alloca (3 + len1
);
7730 memcpy (path
, path1
, len1
);
7732 if (!IS_DIR_SEPARATOR (cp
[-1]))
7733 *cp
++ = DIR_SEPARATOR
;
7737 /* Exclude directories that the linker is known to search. */
7739 && IS_DIR_SEPARATOR (path
[0])
7741 && filename_ncmp (path
+ 1, "lib", 3) == 0)
7743 && filename_ncmp (path
+ 1, "usr", 3) == 0
7744 && IS_DIR_SEPARATOR (path
[4])
7745 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
7748 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
7751 /* Set up the various global variables to indicate that we're processing
7752 the input file named FILENAME. */
7755 set_input (const char *filename
)
7759 gcc_input_filename
= filename
;
7760 input_filename_length
= strlen (gcc_input_filename
);
7761 input_basename
= lbasename (gcc_input_filename
);
7763 /* Find a suffix starting with the last period,
7764 and set basename_length to exclude that suffix. */
7765 basename_length
= strlen (input_basename
);
7766 suffixed_basename_length
= basename_length
;
7767 p
= input_basename
+ basename_length
;
7768 while (p
!= input_basename
&& *p
!= '.')
7770 if (*p
== '.' && p
!= input_basename
)
7772 basename_length
= p
- input_basename
;
7773 input_suffix
= p
+ 1;
7778 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
7779 we will need to do a stat on the gcc_input_filename. The
7780 INPUT_STAT_SET signals that the stat is needed. */
7784 /* On fatal signals, delete all the temporary files. */
7787 fatal_signal (int signum
)
7789 signal (signum
, SIG_DFL
);
7790 delete_failure_queue ();
7791 delete_temp_files ();
7792 /* Get the same signal again, this time not handled,
7793 so its normal effect occurs. */
7794 kill (getpid (), signum
);
7797 /* Compare the contents of the two files named CMPFILE[0] and
7798 CMPFILE[1]. Return zero if they're identical, nonzero
7802 compare_files (char *cmpfile
[])
7805 FILE *temp
[2] = { NULL
, NULL
};
7811 void *map
[2] = { NULL
, NULL
};
7813 for (i
= 0; i
< 2; i
++)
7817 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
7819 error ("%s: could not determine length of compare-debug file %s",
7820 gcc_input_filename
, cmpfile
[i
]);
7825 length
[i
] = st
.st_size
;
7828 if (!ret
&& length
[0] != length
[1])
7830 error ("%s: %<-fcompare-debug%> failure (length)", gcc_input_filename
);
7835 for (i
= 0; i
< 2; i
++)
7837 int fd
= open (cmpfile
[i
], O_RDONLY
);
7840 error ("%s: could not open compare-debug file %s",
7841 gcc_input_filename
, cmpfile
[i
]);
7846 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
7849 if (map
[i
] == (void *) MAP_FAILED
)
7858 if (memcmp (map
[0], map
[1], length
[0]) != 0)
7860 error ("%s: %<-fcompare-debug%> failure", gcc_input_filename
);
7865 for (i
= 0; i
< 2; i
++)
7867 munmap ((caddr_t
) map
[i
], length
[i
]);
7876 for (i
= 0; i
< 2; i
++)
7878 temp
[i
] = fopen (cmpfile
[i
], "r");
7881 error ("%s: could not open compare-debug file %s",
7882 gcc_input_filename
, cmpfile
[i
]);
7888 if (!ret
&& temp
[0] && temp
[1])
7892 c0
= fgetc (temp
[0]);
7893 c1
= fgetc (temp
[1]);
7897 error ("%s: %<-fcompare-debug%> failure",
7898 gcc_input_filename
);
7907 for (i
= 1; i
>= 0; i
--)
7916 driver::driver (bool can_finalize
, bool debug
) :
7917 explicit_link_files (NULL
),
7918 decoded_options (NULL
)
7920 env
.init (can_finalize
, debug
);
7925 XDELETEVEC (explicit_link_files
);
7926 XDELETEVEC (decoded_options
);
7929 /* driver::main is implemented as a series of driver:: method calls. */
7932 driver::main (int argc
, char **argv
)
7936 set_progname (argv
[0]);
7937 expand_at_files (&argc
, &argv
);
7938 decode_argv (argc
, const_cast <const char **> (argv
));
7939 global_initializations ();
7940 build_multilib_strings ();
7942 putenv_COLLECT_AS_OPTIONS (assembler_options
);
7943 putenv_COLLECT_GCC (argv
[0]);
7944 maybe_putenv_COLLECT_LTO_WRAPPER ();
7945 maybe_putenv_OFFLOAD_TARGETS ();
7946 handle_unrecognized_options ();
7950 m_option_proposer
.suggest_completion (completion
);
7954 if (!maybe_print_and_exit ())
7957 early_exit
= prepare_infiles ();
7959 return get_exit_code ();
7961 do_spec_on_infiles ();
7962 maybe_run_linker (argv
[0]);
7964 return get_exit_code ();
7967 /* Locate the final component of argv[0] after any leading path, and set
7968 the program name accordingly. */
7971 driver::set_progname (const char *argv0
) const
7973 const char *p
= argv0
+ strlen (argv0
);
7974 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
7978 xmalloc_set_program_name (progname
);
7981 /* Expand any @ files within the command-line args,
7982 setting at_file_supplied if any were expanded. */
7985 driver::expand_at_files (int *argc
, char ***argv
) const
7987 char **old_argv
= *argv
;
7989 expandargv (argc
, argv
);
7991 /* Determine if any expansions were made. */
7992 if (*argv
!= old_argv
)
7993 at_file_supplied
= true;
7996 /* Decode the command-line arguments from argc/argv into the
7997 decoded_options array. */
8000 driver::decode_argv (int argc
, const char **argv
)
8002 init_opts_obstack ();
8003 init_options_struct (&global_options
, &global_options_set
);
8005 decode_cmdline_options_to_array (argc
, argv
,
8007 &decoded_options
, &decoded_options_count
);
8010 /* Perform various initializations and setup. */
8013 driver::global_initializations ()
8015 /* Unlock the stdio streams. */
8016 unlock_std_streams ();
8018 gcc_init_libintl ();
8020 diagnostic_initialize (global_dc
, 0);
8021 diagnostic_color_init (global_dc
);
8022 diagnostic_urls_init (global_dc
);
8024 #ifdef GCC_DRIVER_HOST_INITIALIZATION
8025 /* Perform host dependent initialization when needed. */
8026 GCC_DRIVER_HOST_INITIALIZATION
;
8029 if (atexit (delete_temp_files
) != 0)
8030 fatal_error (input_location
, "atexit failed");
8032 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
8033 signal (SIGINT
, fatal_signal
);
8035 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
8036 signal (SIGHUP
, fatal_signal
);
8038 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
8039 signal (SIGTERM
, fatal_signal
);
8041 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
8042 signal (SIGPIPE
, fatal_signal
);
8045 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
8046 receive the signal. A different setting is inheritable */
8047 signal (SIGCHLD
, SIG_DFL
);
8050 /* Parsing and gimplification sometimes need quite large stack.
8051 Increase stack size limits if possible. */
8052 stack_limit_increase (64 * 1024 * 1024);
8054 /* Allocate the argument vector. */
8057 obstack_init (&obstack
);
8060 /* Build multilib_select, et. al from the separate lines that make up each
8061 multilib selection. */
8064 driver::build_multilib_strings () const
8068 const char *const *q
= multilib_raw
;
8071 obstack_init (&multilib_obstack
);
8072 while ((p
= *q
++) != (char *) 0)
8073 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8075 obstack_1grow (&multilib_obstack
, 0);
8076 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
8078 q
= multilib_matches_raw
;
8079 while ((p
= *q
++) != (char *) 0)
8080 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8082 obstack_1grow (&multilib_obstack
, 0);
8083 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
8085 q
= multilib_exclusions_raw
;
8086 while ((p
= *q
++) != (char *) 0)
8087 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8089 obstack_1grow (&multilib_obstack
, 0);
8090 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
8092 q
= multilib_reuse_raw
;
8093 while ((p
= *q
++) != (char *) 0)
8094 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8096 obstack_1grow (&multilib_obstack
, 0);
8097 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
8100 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
8103 obstack_1grow (&multilib_obstack
, ' ');
8104 obstack_grow (&multilib_obstack
,
8105 multilib_defaults_raw
[i
],
8106 strlen (multilib_defaults_raw
[i
]));
8110 obstack_1grow (&multilib_obstack
, 0);
8111 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
8115 /* Set up the spec-handling machinery. */
8118 driver::set_up_specs () const
8120 const char *spec_machine_suffix
;
8124 #ifdef INIT_ENVIRONMENT
8125 /* Set up any other necessary machine specific environment variables. */
8126 xputenv (INIT_ENVIRONMENT
);
8129 /* Make a table of what switches there are (switches, n_switches).
8130 Make a table of specified input files (infiles, n_infiles).
8131 Decode switches that are handled locally. */
8133 process_command (decoded_options_count
, decoded_options
);
8135 /* Initialize the vector of specs to just the default.
8136 This means one element containing 0s, as a terminator. */
8138 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
8139 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
8140 n_compilers
= n_default_compilers
;
8142 /* Read specs from a file if there is one. */
8144 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
8145 accel_dir_suffix
, dir_separator_str
, NULL
);
8146 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
8148 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
8149 /* Read the specs file unless it is a default one. */
8150 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
8151 read_specs (specs_file
, true, false);
8155 #ifdef ACCEL_COMPILER
8156 spec_machine_suffix
= machine_suffix
;
8158 spec_machine_suffix
= just_machine_suffix
;
8161 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
8162 for any override of as, ld and libraries. */
8163 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
8164 + strlen (spec_machine_suffix
) + sizeof ("specs"));
8165 strcpy (specs_file
, standard_exec_prefix
);
8166 strcat (specs_file
, spec_machine_suffix
);
8167 strcat (specs_file
, "specs");
8168 if (access (specs_file
, R_OK
) == 0)
8169 read_specs (specs_file
, true, false);
8171 /* Process any configure-time defaults specified for the command line
8172 options, via OPTION_DEFAULT_SPECS. */
8173 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
8174 do_option_spec (option_default_specs
[i
].name
,
8175 option_default_specs
[i
].spec
);
8177 /* Process DRIVER_SELF_SPECS, adding any new options to the end
8178 of the command line. */
8180 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
8181 do_self_spec (driver_self_specs
[i
]);
8183 /* If not cross-compiling, look for executables in the standard
8185 if (*cross_compile
== '0')
8187 if (*md_exec_prefix
)
8189 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
8190 PREFIX_PRIORITY_LAST
, 0, 0);
8194 /* Process sysroot_suffix_spec. */
8195 if (*sysroot_suffix_spec
!= 0
8196 && !no_sysroot_suffix
8197 && do_spec_2 (sysroot_suffix_spec
, NULL
) == 0)
8199 if (argbuf
.length () > 1)
8200 error ("spec failure: more than one argument to "
8201 "%<SYSROOT_SUFFIX_SPEC%>");
8202 else if (argbuf
.length () == 1)
8203 target_sysroot_suffix
= xstrdup (argbuf
.last ());
8206 #ifdef HAVE_LD_SYSROOT
8207 /* Pass the --sysroot option to the linker, if it supports that. If
8208 there is a sysroot_suffix_spec, it has already been processed by
8209 this point, so target_system_root really is the system root we
8211 if (target_system_root
)
8213 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
8214 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
8215 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
8219 /* Process sysroot_hdrs_suffix_spec. */
8220 if (*sysroot_hdrs_suffix_spec
!= 0
8221 && !no_sysroot_suffix
8222 && do_spec_2 (sysroot_hdrs_suffix_spec
, NULL
) == 0)
8224 if (argbuf
.length () > 1)
8225 error ("spec failure: more than one argument "
8226 "to %<SYSROOT_HEADERS_SUFFIX_SPEC%>");
8227 else if (argbuf
.length () == 1)
8228 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
8231 /* Look for startfiles in the standard places. */
8232 if (*startfile_prefix_spec
!= 0
8233 && do_spec_2 (startfile_prefix_spec
, NULL
) == 0
8234 && do_spec_1 (" ", 0, NULL
) == 0)
8238 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
8239 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
8240 PREFIX_PRIORITY_LAST
, 0, 1);
8242 /* We should eventually get rid of all these and stick to
8243 startfile_prefix_spec exclusively. */
8244 else if (*cross_compile
== '0' || target_system_root
)
8246 if (*md_startfile_prefix
)
8247 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
8248 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
8250 if (*md_startfile_prefix_1
)
8251 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
8252 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
8254 /* If standard_startfile_prefix is relative, base it on
8255 standard_exec_prefix. This lets us move the installed tree
8256 as a unit. If GCC_EXEC_PREFIX is defined, base
8257 standard_startfile_prefix on that as well.
8259 If the prefix is relative, only search it for native compilers;
8260 otherwise we will search a directory containing host libraries. */
8261 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
8262 add_sysrooted_prefix (&startfile_prefixes
,
8263 standard_startfile_prefix
, "BINUTILS",
8264 PREFIX_PRIORITY_LAST
, 0, 1);
8265 else if (*cross_compile
== '0')
8267 add_prefix (&startfile_prefixes
,
8268 concat (gcc_exec_prefix
8269 ? gcc_exec_prefix
: standard_exec_prefix
,
8271 standard_startfile_prefix
, NULL
),
8272 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
8275 /* Sysrooted prefixes are relocated because target_system_root is
8276 also relocated by gcc_exec_prefix. */
8277 if (*standard_startfile_prefix_1
)
8278 add_sysrooted_prefix (&startfile_prefixes
,
8279 standard_startfile_prefix_1
, "BINUTILS",
8280 PREFIX_PRIORITY_LAST
, 0, 1);
8281 if (*standard_startfile_prefix_2
)
8282 add_sysrooted_prefix (&startfile_prefixes
,
8283 standard_startfile_prefix_2
, "BINUTILS",
8284 PREFIX_PRIORITY_LAST
, 0, 1);
8287 /* Process any user specified specs in the order given on the command
8289 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
8291 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
8293 read_specs (filename
? filename
: uptr
->filename
, false, true);
8296 /* Process any user self specs. */
8298 struct spec_list
*sl
;
8299 for (sl
= specs
; sl
; sl
= sl
->next
)
8300 if (sl
->name_len
== sizeof "self_spec" - 1
8301 && !strcmp (sl
->name
, "self_spec"))
8302 do_self_spec (*sl
->ptr_spec
);
8307 enum save_temps save
;
8309 if (!compare_debug_second
)
8311 n_switches_debug_check
[1] = n_switches
;
8312 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
8313 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
8316 do_self_spec ("%:compare-debug-self-opt()");
8317 n_switches_debug_check
[0] = n_switches
;
8318 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
8319 switches_debug_check
[0] = switches
;
8321 n_switches
= n_switches_debug_check
[1];
8322 n_switches_alloc
= n_switches_alloc_debug_check
[1];
8323 switches
= switches_debug_check
[1];
8326 /* Avoid crash when computing %j in this early. */
8327 save
= save_temps_flag
;
8328 save_temps_flag
= SAVE_TEMPS_NONE
;
8330 compare_debug
= -compare_debug
;
8331 do_self_spec ("%:compare-debug-self-opt()");
8333 save_temps_flag
= save
;
8335 if (!compare_debug_second
)
8337 n_switches_debug_check
[1] = n_switches
;
8338 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
8339 switches_debug_check
[1] = switches
;
8340 compare_debug
= -compare_debug
;
8341 n_switches
= n_switches_debug_check
[0];
8342 n_switches_alloc
= n_switches_debug_check
[0];
8343 switches
= switches_debug_check
[0];
8348 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
8349 if (gcc_exec_prefix
)
8350 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
8351 dir_separator_str
, spec_version
,
8352 accel_dir_suffix
, dir_separator_str
, NULL
);
8354 /* Now we have the specs.
8355 Set the `valid' bits for switches that match anything in any spec. */
8357 validate_all_switches ();
8359 /* Now that we have the switches and the specs, set
8360 the subdirectory based on the options. */
8361 set_multilib_dir ();
8364 /* Set up to remember the pathname of gcc and any options
8365 needed for collect. We use argv[0] instead of progname because
8366 we need the complete pathname. */
8369 driver::putenv_COLLECT_GCC (const char *argv0
) const
8371 obstack_init (&collect_obstack
);
8372 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
8373 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
8374 xputenv (XOBFINISH (&collect_obstack
, char *));
8377 /* Set up to remember the pathname of the lto wrapper. */
8380 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
8382 char *lto_wrapper_file
;
8385 lto_wrapper_file
= NULL
;
8387 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
8389 if (lto_wrapper_file
)
8391 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
8392 set_static_spec_owned (<o_wrapper_spec
, lto_wrapper_file
);
8393 obstack_init (&collect_obstack
);
8394 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
8395 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
8396 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
8397 strlen (lto_wrapper_spec
) + 1);
8398 xputenv (XOBFINISH (&collect_obstack
, char *));
8403 /* Set up to remember the names of offload targets. */
8406 driver::maybe_putenv_OFFLOAD_TARGETS () const
8408 if (offload_targets
&& offload_targets
[0] != '\0')
8410 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
8411 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
8412 obstack_grow (&collect_obstack
, offload_targets
,
8413 strlen (offload_targets
) + 1);
8414 xputenv (XOBFINISH (&collect_obstack
, char *));
8417 free (offload_targets
);
8418 offload_targets
= NULL
;
8421 /* Reject switches that no pass was interested in. */
8424 driver::handle_unrecognized_options ()
8426 for (size_t i
= 0; (int) i
< n_switches
; i
++)
8427 if (! switches
[i
].validated
)
8429 const char *hint
= m_option_proposer
.suggest_option (switches
[i
].part1
);
8431 error ("unrecognized command-line option %<-%s%>;"
8432 " did you mean %<-%s%>?",
8433 switches
[i
].part1
, hint
);
8435 error ("unrecognized command-line option %<-%s%>",
8440 /* Handle the various -print-* options, returning 0 if the driver
8441 should exit, or nonzero if the driver should continue. */
8444 driver::maybe_print_and_exit () const
8446 if (print_search_dirs
)
8448 printf (_("install: %s%s\n"),
8449 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
8450 gcc_exec_prefix
? "" : machine_suffix
);
8451 printf (_("programs: %s\n"),
8452 build_search_list (&exec_prefixes
, "", false, false));
8453 printf (_("libraries: %s\n"),
8454 build_search_list (&startfile_prefixes
, "", false, true));
8458 if (print_file_name
)
8460 printf ("%s\n", find_file (print_file_name
));
8464 if (print_prog_name
)
8466 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
8468 /* Append USE_LD to the default linker. */
8469 #ifdef DEFAULT_LINKER
8471 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
8472 int len
= (sizeof (DEFAULT_LINKER
)
8473 - sizeof (HOST_EXECUTABLE_SUFFIX
));
8477 char *default_linker
= xstrdup (DEFAULT_LINKER
);
8478 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
8479 HOST_EXECUTABLE_SUFFIX. */
8480 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
8482 default_linker
[len
] = '\0';
8483 ld
= concat (default_linker
, use_ld
,
8484 HOST_EXECUTABLE_SUFFIX
, NULL
);
8489 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
8490 if (access (ld
, X_OK
) == 0)
8492 printf ("%s\n", ld
);
8496 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
8498 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
8499 printf ("%s\n", (newname
? newname
: print_prog_name
));
8503 if (print_multi_lib
)
8505 print_multilib_info ();
8509 if (print_multi_directory
)
8511 if (multilib_dir
== NULL
)
8514 printf ("%s\n", multilib_dir
);
8518 if (print_multiarch
)
8520 if (multiarch_dir
== NULL
)
8523 printf ("%s\n", multiarch_dir
);
8529 if (target_system_root
)
8531 if (target_sysroot_suffix
)
8532 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
8534 printf ("%s\n", target_system_root
);
8539 if (print_multi_os_directory
)
8541 if (multilib_os_dir
== NULL
)
8544 printf ("%s\n", multilib_os_dir
);
8548 if (print_sysroot_headers_suffix
)
8550 if (*sysroot_hdrs_suffix_spec
)
8552 printf("%s\n", (target_sysroot_hdrs_suffix
8553 ? target_sysroot_hdrs_suffix
8558 /* The error status indicates that only one set of fixed
8559 headers should be built. */
8560 fatal_error (input_location
,
8561 "not configured with sysroot headers suffix");
8564 if (print_help_list
)
8570 printf (_("\nFor bug reporting instructions, please see:\n"));
8571 printf ("%s.\n", bug_report_url
);
8576 /* We do not exit here. Instead we have created a fake input file
8577 called 'help-dummy' which needs to be compiled, and we pass this
8578 on the various sub-processes, along with the --help switch.
8579 Ensure their output appears after ours. */
8580 fputc ('\n', stdout
);
8586 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
8588 printf ("Copyright %s 2020 Free Software Foundation, Inc.\n",
8590 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
8591 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
8596 /* We do not exit here. We use the same mechanism of --help to print
8597 the version of the sub-processes. */
8598 fputc ('\n', stdout
);
8604 print_configuration (stderr
);
8612 /* Figure out what to do with each input file.
8613 Return true if we need to exit early from "main", false otherwise. */
8616 driver::prepare_infiles ()
8619 int lang_n_infiles
= 0;
8621 if (n_infiles
== added_libraries
)
8622 fatal_error (input_location
, "no input files");
8625 /* Early exit needed from main. */
8628 /* Make a place to record the compiler output file names
8629 that correspond to the input files. */
8632 i
+= lang_specific_extra_outfiles
;
8633 outfiles
= XCNEWVEC (const char *, i
);
8635 /* Record which files were specified explicitly as link input. */
8637 explicit_link_files
= XCNEWVEC (char, n_infiles
);
8639 combine_inputs
= have_o
|| flag_wpa
;
8641 for (i
= 0; (int) i
< n_infiles
; i
++)
8643 const char *name
= infiles
[i
].name
;
8644 struct compiler
*compiler
= lookup_compiler (name
,
8646 infiles
[i
].language
);
8648 if (compiler
&& !(compiler
->combinable
))
8649 combine_inputs
= false;
8651 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
8652 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
8653 infiles
[i
].incompiler
= compiler
;
8657 input_file_compiler
= compiler
;
8658 infiles
[i
].incompiler
= compiler
;
8662 /* Since there is no compiler for this input file, assume it is a
8664 explicit_link_files
[i
] = 1;
8665 infiles
[i
].incompiler
= NULL
;
8667 infiles
[i
].compiled
= false;
8668 infiles
[i
].preprocessed
= false;
8671 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
8672 fatal_error (input_location
,
8673 "cannot specify %<-o%> with %<-c%>, %<-S%> or %<-E%> "
8674 "with multiple files");
8676 /* No early exit needed from main; we can continue. */
8680 /* Run the spec machinery on each input file. */
8683 driver::do_spec_on_infiles () const
8687 for (i
= 0; (int) i
< n_infiles
; i
++)
8689 int this_file_error
= 0;
8691 /* Tell do_spec what to substitute for %i. */
8693 input_file_number
= i
;
8694 set_input (infiles
[i
].name
);
8696 if (infiles
[i
].compiled
)
8699 /* Use the same thing in %o, unless cp->spec says otherwise. */
8701 outfiles
[i
] = gcc_input_filename
;
8703 /* Figure out which compiler from the file's suffix. */
8706 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
8707 infiles
[i
].language
);
8709 if (input_file_compiler
)
8711 /* Ok, we found an applicable compiler. Run its spec. */
8713 if (input_file_compiler
->spec
[0] == '#')
8715 error ("%s: %s compiler not installed on this system",
8716 gcc_input_filename
, &input_file_compiler
->spec
[1]);
8717 this_file_error
= 1;
8725 free (debug_check_temp_file
[0]);
8726 debug_check_temp_file
[0] = NULL
;
8728 free (debug_check_temp_file
[1]);
8729 debug_check_temp_file
[1] = NULL
;
8732 value
= do_spec (input_file_compiler
->spec
);
8733 infiles
[i
].compiled
= true;
8735 this_file_error
= 1;
8736 else if (compare_debug
&& debug_check_temp_file
[0])
8739 inform (UNKNOWN_LOCATION
,
8740 "recompiling with %<-fcompare-debug%>");
8742 compare_debug
= -compare_debug
;
8743 n_switches
= n_switches_debug_check
[1];
8744 n_switches_alloc
= n_switches_alloc_debug_check
[1];
8745 switches
= switches_debug_check
[1];
8747 value
= do_spec (input_file_compiler
->spec
);
8749 compare_debug
= -compare_debug
;
8750 n_switches
= n_switches_debug_check
[0];
8751 n_switches_alloc
= n_switches_alloc_debug_check
[0];
8752 switches
= switches_debug_check
[0];
8756 error ("during %<-fcompare-debug%> recompilation");
8757 this_file_error
= 1;
8760 gcc_assert (debug_check_temp_file
[1]
8761 && filename_cmp (debug_check_temp_file
[0],
8762 debug_check_temp_file
[1]));
8765 inform (UNKNOWN_LOCATION
, "comparing final insns dumps");
8767 if (compare_files (debug_check_temp_file
))
8768 this_file_error
= 1;
8773 free (debug_check_temp_file
[0]);
8774 debug_check_temp_file
[0] = NULL
;
8776 free (debug_check_temp_file
[1]);
8777 debug_check_temp_file
[1] = NULL
;
8782 /* If this file's name does not contain a recognized suffix,
8783 record it as explicit linker input. */
8786 explicit_link_files
[i
] = 1;
8788 /* Clear the delete-on-failure queue, deleting the files in it
8789 if this compilation failed. */
8791 if (this_file_error
)
8793 delete_failure_queue ();
8796 /* If this compilation succeeded, don't delete those files later. */
8797 clear_failure_queue ();
8800 /* Reset the input file name to the first compile/object file name, for use
8801 with %b in LINK_SPEC. We use the first input file that we can find
8802 a compiler to compile it instead of using infiles.language since for
8803 languages other than C we use aliases that we then lookup later. */
8808 for (i
= 0; i
< n_infiles
; i
++)
8809 if (infiles
[i
].incompiler
8810 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
8812 set_input (infiles
[i
].name
);
8819 /* Make sure INPUT_FILE_NUMBER points to first available open
8821 input_file_number
= n_infiles
;
8822 if (lang_specific_pre_link ())
8827 /* If we have to run the linker, do it now. */
8830 driver::maybe_run_linker (const char *argv0
) const
8833 int linker_was_run
= 0;
8834 int num_linker_inputs
;
8836 /* Determine if there are any linker input files. */
8837 num_linker_inputs
= 0;
8838 for (i
= 0; (int) i
< n_infiles
; i
++)
8839 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
8840 num_linker_inputs
++;
8842 /* Arrange for temporary file names created during linking to take
8843 on names related with the linker output rather than with the
8844 inputs when appropriate. */
8845 if (outbase
&& *outbase
)
8849 char *tofree
= dumpdir
;
8850 gcc_checking_assert (strlen (dumpdir
) == dumpdir_length
);
8851 dumpdir
= concat (dumpdir
, outbase
, ".", NULL
);
8855 dumpdir
= concat (outbase
, ".", NULL
);
8856 dumpdir_length
+= strlen (outbase
) + 1;
8857 dumpdir_trailing_dash_added
= true;
8859 else if (dumpdir_trailing_dash_added
)
8861 gcc_assert (dumpdir
[dumpdir_length
- 1] == '-');
8862 dumpdir
[dumpdir_length
- 1] = '.';
8865 if (dumpdir_trailing_dash_added
)
8867 gcc_assert (dumpdir_length
> 0);
8868 gcc_assert (dumpdir
[dumpdir_length
- 1] == '.');
8873 input_basename
= outbase
= NULL
;
8874 outbase_length
= suffixed_basename_length
= basename_length
= 0;
8876 /* Run ld to link all the compiler output files. */
8878 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
8880 int tmp
= execution_count
;
8882 detect_jobserver ();
8886 #if HAVE_LTO_PLUGIN > 0
8887 #if HAVE_LTO_PLUGIN == 2
8888 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
8890 const char *fuse_linker_plugin
= "fuse-linker-plugin";
8894 /* We'll use ld if we can't find collect2. */
8895 if (! strcmp (linker_name_spec
, "collect2"))
8897 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
8899 set_static_spec_shared (&linker_name_spec
, "ld");
8902 #if HAVE_LTO_PLUGIN > 0
8903 #if HAVE_LTO_PLUGIN == 2
8904 if (!switch_matches (fno_use_linker_plugin
,
8905 fno_use_linker_plugin
8906 + strlen (fno_use_linker_plugin
), 0))
8908 if (switch_matches (fuse_linker_plugin
,
8910 + strlen (fuse_linker_plugin
), 0))
8913 char *temp_spec
= find_a_file (&exec_prefixes
,
8914 LTOPLUGINSONAME
, R_OK
,
8917 fatal_error (input_location
,
8918 "%<-fuse-linker-plugin%>, but %s not found",
8920 linker_plugin_file_spec
= convert_white_space (temp_spec
);
8923 set_static_spec_shared (<o_gcc_spec
, argv0
);
8926 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
8928 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
8929 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
8931 if (print_subprocess_help
== 1)
8933 printf (_("\nLinker options\n==============\n\n"));
8934 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
8935 " to the linker.\n\n"));
8938 int value
= do_spec (link_command_spec
);
8941 linker_was_run
= (tmp
!= execution_count
);
8944 /* If options said don't run linker,
8945 complain about input files to be given to the linker. */
8947 if (! linker_was_run
&& !seen_error ())
8948 for (i
= 0; (int) i
< n_infiles
; i
++)
8949 if (explicit_link_files
[i
]
8950 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
8951 warning (0, "%s: linker input file unused because linking not done",
8955 /* The end of "main". */
8958 driver::final_actions () const
8960 /* Delete some or all of the temporary files we made. */
8963 delete_failure_queue ();
8964 delete_temp_files ();
8966 if (print_help_list
)
8968 printf (("\nFor bug reporting instructions, please see:\n"));
8969 printf ("%s\n", bug_report_url
);
8973 /* Detect whether jobserver is active and working. If not drop
8974 --jobserver-auth from MAKEFLAGS. */
8977 driver::detect_jobserver () const
8979 /* Detect jobserver and drop it if it's not working. */
8980 const char *makeflags
= env
.get ("MAKEFLAGS");
8981 if (makeflags
!= NULL
)
8983 const char *needle
= "--jobserver-auth=";
8984 const char *n
= strstr (makeflags
, needle
);
8991 = (sscanf (n
+ strlen (needle
), "%d,%d", &rfd
, &wfd
) == 2
8994 && is_valid_fd (rfd
)
8995 && is_valid_fd (wfd
));
8997 /* Drop the jobserver if it's not working now. */
9000 unsigned offset
= n
- makeflags
;
9001 char *dup
= xstrdup (makeflags
);
9004 const char *space
= strchr (makeflags
+ offset
, ' ');
9006 strcpy (dup
+ offset
, space
);
9007 xputenv (concat ("MAKEFLAGS=", dup
, NULL
));
9013 /* Determine what the exit code of the driver should be. */
9016 driver::get_exit_code () const
9018 return (signal_count
!= 0 ? 2
9019 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
9023 /* Find the proper compilation spec for the file name NAME,
9024 whose length is LENGTH. LANGUAGE is the specified language,
9025 or 0 if this file is to be passed to the linker. */
9027 static struct compiler
*
9028 lookup_compiler (const char *name
, size_t length
, const char *language
)
9030 struct compiler
*cp
;
9032 /* If this was specified by the user to be a linker input, indicate that. */
9033 if (language
!= 0 && language
[0] == '*')
9036 /* Otherwise, look for the language, if one is spec'd. */
9039 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
9040 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
9042 if (name
!= NULL
&& strcmp (name
, "-") == 0
9043 && (strcmp (cp
->suffix
, "@c-header") == 0
9044 || strcmp (cp
->suffix
, "@c++-header") == 0)
9046 fatal_error (input_location
,
9047 "cannot use %<-%> as input filename for a "
9048 "precompiled header");
9053 error ("language %s not recognized", language
);
9057 /* Look for a suffix. */
9058 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
9060 if (/* The suffix `-' matches only the file name `-'. */
9061 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
9062 || (strlen (cp
->suffix
) < length
9063 /* See if the suffix matches the end of NAME. */
9064 && !strcmp (cp
->suffix
,
9065 name
+ length
- strlen (cp
->suffix
))
9070 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
9071 /* Look again, but case-insensitively this time. */
9073 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
9075 if (/* The suffix `-' matches only the file name `-'. */
9076 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
9077 || (strlen (cp
->suffix
) < length
9078 /* See if the suffix matches the end of NAME. */
9079 && ((!strcmp (cp
->suffix
,
9080 name
+ length
- strlen (cp
->suffix
))
9081 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
9082 && !strcasecmp (cp
->suffix
,
9083 name
+ length
- strlen (cp
->suffix
)))
9089 if (cp
>= compilers
)
9091 if (cp
->spec
[0] != '@')
9092 /* A non-alias entry: return it. */
9095 /* An alias entry maps a suffix to a language.
9096 Search for the language; pass 0 for NAME and LENGTH
9097 to avoid infinite recursion if language not found. */
9098 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
9104 save_string (const char *s
, int len
)
9106 char *result
= XNEWVEC (char, len
+ 1);
9108 gcc_checking_assert (strlen (s
) >= (unsigned int) len
);
9109 memcpy (result
, s
, len
);
9116 validate_switches_from_spec (const char *spec
, bool user
)
9118 const char *p
= spec
;
9124 || (*p
== 'W' && *++p
== '{')
9125 || (*p
== '@' && *++p
== '{')))
9126 /* We have a switch spec. */
9127 p
= validate_switches (p
+ 1, user
, *p
== '{');
9131 validate_all_switches (void)
9133 struct compiler
*comp
;
9134 struct spec_list
*spec
;
9136 for (comp
= compilers
; comp
->spec
; comp
++)
9137 validate_switches_from_spec (comp
->spec
, false);
9139 /* Look through the linked list of specs read from the specs file. */
9140 for (spec
= specs
; spec
; spec
= spec
->next
)
9141 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
9143 validate_switches_from_spec (link_command_spec
, false);
9146 /* Look at the switch-name that comes after START and mark as valid
9147 all supplied switches that match it. If BRACED, handle other
9148 switches after '|' and '&', and specs after ':' until ';' or '}',
9149 going back for more switches after ';'. Without BRACED, handle
9150 only one atom. Return a pointer to whatever follows the handled
9151 items, after the closing brace if BRACED. */
9154 validate_switches (const char *start
, bool user_spec
, bool braced
)
9156 const char *p
= start
;
9160 bool suffix
= false;
9161 bool starred
= false;
9163 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
9172 if (*p
== '.' || *p
== ',')
9176 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
9177 || *p
== ',' || *p
== '.' || *p
== '@')
9182 starred
= true, p
++;
9188 /* Mark all matching switches as valid. */
9189 for (i
= 0; i
< n_switches
; i
++)
9190 if (!strncmp (switches
[i
].part1
, atom
, len
)
9191 && (starred
|| switches
[i
].part1
[len
] == '\0')
9192 && (switches
[i
].known
|| user_spec
))
9193 switches
[i
].validated
= true;
9200 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
9203 if (*p
&& p
[-1] == ':')
9205 while (*p
&& *p
!= ';' && *p
!= '}')
9210 if (*p
== '{' || *p
== '<')
9211 p
= validate_switches (p
+1, user_spec
, *p
== '{');
9212 else if (p
[0] == 'W' && p
[1] == '{')
9213 p
= validate_switches (p
+2, user_spec
, true);
9214 else if (p
[0] == '@' && p
[1] == '{')
9215 p
= validate_switches (p
+2, user_spec
, true);
9222 if (*p
&& p
[-1] == ';')
9236 static struct mdswitchstr
*mdswitches
;
9237 static int n_mdswitches
;
9239 /* Check whether a particular argument was used. The first time we
9240 canonicalize the switches to keep only the ones we care about. */
9245 int operator () (const char *p
, int len
);
9252 const char *replace
;
9257 mswitchstr
*mswitches
;
9262 used_arg_t used_arg
;
9265 used_arg_t::operator () (const char *p
, int len
)
9271 struct mswitchstr
*matches
;
9275 /* Break multilib_matches into the component strings of string
9276 and replacement string. */
9277 for (q
= multilib_matches
; *q
!= '\0'; q
++)
9282 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
9284 q
= multilib_matches
;
9293 fatal_error (input_location
, "multilib spec %qs is invalid",
9298 matches
[i
].len
= q
- matches
[i
].str
;
9300 matches
[i
].replace
= ++q
;
9301 while (*q
!= ';' && *q
!= '\0')
9304 goto invalid_matches
;
9307 matches
[i
].rep_len
= q
- matches
[i
].replace
;
9313 /* Now build a list of the replacement string for switches that we care
9314 about. Make sure we allocate at least one entry. This prevents
9315 xmalloc from calling fatal, and prevents us from re-executing this
9318 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
9319 for (i
= 0; i
< n_switches
; i
++)
9320 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
9322 int xlen
= strlen (switches
[i
].part1
);
9323 for (j
= 0; j
< cnt
; j
++)
9324 if (xlen
== matches
[j
].len
9325 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
9327 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
9328 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
9329 mswitches
[n_mswitches
].replace
= (char *) 0;
9330 mswitches
[n_mswitches
].rep_len
= 0;
9336 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
9337 on the command line nor any options mutually incompatible with
9339 for (i
= 0; i
< n_mdswitches
; i
++)
9343 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
9349 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
9350 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
9352 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
9359 if (*q
!= ' ' && *q
!= '\0')
9361 while (*r
!= ' ' && *r
!= '\0')
9364 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
9367 if (used_arg (r
, q
- r
))
9372 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
9373 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
9374 mswitches
[n_mswitches
].replace
= (char *) 0;
9375 mswitches
[n_mswitches
].rep_len
= 0;
9388 for (i
= 0; i
< n_mswitches
; i
++)
9389 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
9395 void used_arg_t::finalize ()
9397 XDELETEVEC (mswitches
);
9404 default_arg (const char *p
, int len
)
9408 for (i
= 0; i
< n_mdswitches
; i
++)
9409 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
9415 /* Work out the subdirectory to use based on the options. The format of
9416 multilib_select is a list of elements. Each element is a subdirectory
9417 name followed by a list of options followed by a semicolon. The format
9418 of multilib_exclusions is the same, but without the preceding
9419 directory. First gcc will check the exclusions, if none of the options
9420 beginning with an exclamation point are present, and all of the other
9421 options are present, then we will ignore this completely. Passing
9422 that, gcc will consider each multilib_select in turn using the same
9423 rules for matching the options. If a match is found, that subdirectory
9425 A subdirectory name is optionally followed by a colon and the corresponding
9429 set_multilib_dir (void)
9432 unsigned int this_path_len
;
9433 const char *this_path
, *this_arg
;
9434 const char *start
, *end
;
9436 int ok
, ndfltok
, first
;
9439 start
= multilib_defaults
;
9440 while (*start
== ' ' || *start
== '\t')
9442 while (*start
!= '\0')
9445 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
9447 while (*start
== ' ' || *start
== '\t')
9455 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
9456 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
9458 while (*start
== ' ' || *start
== '\t')
9464 for (end
= start
+ 1;
9465 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
9468 obstack_grow (&multilib_obstack
, start
, end
- start
);
9469 obstack_1grow (&multilib_obstack
, 0);
9470 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
9471 mdswitches
[i
++].len
= end
- start
;
9478 p
= multilib_exclusions
;
9481 /* Ignore newlines. */
9488 /* Check the arguments. */
9495 fatal_error (input_location
, "multilib exclusions %qs is invalid",
9496 multilib_exclusions
);
9506 while (*p
!= ' ' && *p
!= ';')
9509 goto invalid_exclusions
;
9513 if (*this_arg
!= '!')
9521 ok
= used_arg (this_arg
, p
- this_arg
);
9536 p
= multilib_select
;
9538 /* Append multilib reuse rules if any. With those rules, we can reuse
9539 one multilib for certain different options sets. */
9540 if (strlen (multilib_reuse
) > 0)
9541 p
= concat (p
, multilib_reuse
, NULL
);
9545 /* Ignore newlines. */
9552 /* Get the initial path. */
9559 fatal_error (input_location
, "multilib select %qs %qs is invalid",
9560 multilib_select
, multilib_reuse
);
9564 this_path_len
= p
- this_path
;
9566 /* Check the arguments. */
9573 goto invalid_select
;
9582 while (*p
!= ' ' && *p
!= ';')
9585 goto invalid_select
;
9589 if (*this_arg
!= '!')
9597 /* If this is a default argument, we can just ignore it.
9598 This is true even if this_arg begins with '!'. Beginning
9599 with '!' does not mean that this argument is necessarily
9600 inappropriate for this library: it merely means that
9601 there is a more specific library which uses this
9602 argument. If this argument is a default, we need not
9603 consider that more specific library. */
9604 ok
= used_arg (this_arg
, p
- this_arg
);
9611 if (default_arg (this_arg
, p
- this_arg
))
9620 if (this_path_len
!= 1
9621 || this_path
[0] != '.')
9623 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
9626 strncpy (new_multilib_dir
, this_path
, this_path_len
);
9627 new_multilib_dir
[this_path_len
] = '\0';
9628 q
= strchr (new_multilib_dir
, ':');
9631 multilib_dir
= new_multilib_dir
;
9638 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
9640 while (q
< end
&& *q
!= ':')
9644 const char *q2
= q
+ 1, *ml_end
= end
;
9645 char *new_multilib_os_dir
;
9647 while (q2
< end
&& *q2
!= ':')
9651 if (ml_end
- q
== 1)
9652 multilib_os_dir
= xstrdup (".");
9655 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
9656 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
9657 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
9658 multilib_os_dir
= new_multilib_os_dir
;
9661 if (q2
< end
&& *q2
== ':')
9663 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
9664 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
9665 new_multiarch_dir
[end
- q2
- 1] = '\0';
9666 multiarch_dir
= new_multiarch_dir
;
9675 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
9676 && strcmp (multilib_os_dir
, ".") == 0)
9678 free (CONST_CAST (char *, multilib_os_dir
));
9679 multilib_os_dir
= NULL
;
9681 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
9682 multilib_os_dir
= multilib_dir
;
9685 /* Print out the multiple library subdirectory selection
9686 information. This prints out a series of lines. Each line looks
9687 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
9688 required. Only the desired options are printed out, the negative
9689 matches. The options are print without a leading dash. There are
9690 no spaces to make it easy to use the information in the shell.
9691 Each subdirectory is printed only once. This assumes the ordering
9692 generated by the genmultilib script. Also, we leave out ones that match
9696 print_multilib_info (void)
9698 const char *p
= multilib_select
;
9699 const char *last_path
= 0, *this_path
;
9701 unsigned int last_path_len
= 0;
9706 /* Ignore newlines. */
9713 /* Get the initial path. */
9720 fatal_error (input_location
,
9721 "multilib select %qs is invalid", multilib_select
);
9727 /* When --disable-multilib was used but target defines
9728 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
9729 with .:: for multiarch configurations) are there just to find
9730 multilib_os_dir, so skip them from output. */
9731 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
9734 /* Check for matches with the multilib_exclusions. We don't bother
9735 with the '!' in either list. If any of the exclusion rules match
9736 all of its options with the select rule, we skip it. */
9738 const char *e
= multilib_exclusions
;
9739 const char *this_arg
;
9744 /* Ignore newlines. */
9751 /* Check the arguments. */
9760 fatal_error (input_location
,
9761 "multilib exclusion %qs is invalid",
9762 multilib_exclusions
);
9773 while (*e
!= ' ' && *e
!= ';')
9776 goto invalid_exclusion
;
9784 int len
= e
- this_arg
;
9787 goto invalid_select
;
9791 while (*q
!= ' ' && *q
!= ';')
9794 goto invalid_select
;
9798 if (! strncmp (arg
, this_arg
,
9799 (len
< q
- arg
) ? q
- arg
: len
)
9800 || default_arg (this_arg
, e
- this_arg
))
9830 /* If this is a duplicate, skip it. */
9831 skip
= (last_path
!= 0
9832 && (unsigned int) (p
- this_path
) == last_path_len
9833 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
9835 last_path
= this_path
;
9836 last_path_len
= p
- this_path
;
9839 /* If this directory requires any default arguments, we can skip
9840 it. We will already have printed a directory identical to
9841 this one which does not require that default argument. */
9852 goto invalid_select
;
9859 while (*q
!= ' ' && *q
!= ';')
9862 goto invalid_select
;
9867 && default_arg (arg
, q
- arg
))
9882 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
9893 goto invalid_select
;
9901 use_arg
= *p
!= '!';
9906 while (*p
!= ' ' && *p
!= ';')
9909 goto invalid_select
;
9921 /* If there are extra options, print them now. */
9922 if (multilib_extra
&& *multilib_extra
)
9924 int print_at
= TRUE
;
9927 for (q
= multilib_extra
; *q
!= '\0'; q
++)
9948 /* getenv built-in spec function.
9950 Returns the value of the environment variable given by its first argument,
9951 concatenated with the second argument. If the variable is not defined, a
9952 fatal error is issued unless such undefs are internally allowed, in which
9953 case the variable name prefixed by a '/' is used as the variable value.
9955 The leading '/' allows using the result at a spot where a full path would
9956 normally be expected and when the actual value doesn't really matter since
9957 undef vars are allowed. */
9960 getenv_spec_function (int argc
, const char **argv
)
9963 const char *varname
;
9973 value
= env
.get (varname
);
9975 /* If the variable isn't defined and this is allowed, craft our expected
9976 return value. Assume variable names used in specs strings don't contain
9977 any active spec character so don't need escaping. */
9978 if (!value
&& spec_undefvar_allowed
)
9980 result
= XNEWVAR (char, strlen(varname
) + 2);
9981 sprintf (result
, "/%s", varname
);
9986 fatal_error (input_location
,
9987 "environment variable %qs not defined", varname
);
9989 /* We have to escape every character of the environment variable so
9990 they are not interpreted as active spec characters. A
9991 particularly painful case is when we are reading a variable
9992 holding a windows path complete with \ separators. */
9993 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
9994 result
= XNEWVAR (char, len
);
9995 for (ptr
= result
; *value
; ptr
+= 2)
10001 strcpy (ptr
, argv
[1]);
10006 /* if-exists built-in spec function.
10008 Checks to see if the file specified by the absolute pathname in
10009 ARGS exists. Returns that pathname if found.
10011 The usual use for this function is to check for a library file
10012 (whose name has been expanded with %s). */
10014 static const char *
10015 if_exists_spec_function (int argc
, const char **argv
)
10017 /* Must have only one argument. */
10018 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
10024 /* if-exists-else built-in spec function.
10026 This is like if-exists, but takes an additional argument which
10027 is returned if the first argument does not exist. */
10029 static const char *
10030 if_exists_else_spec_function (int argc
, const char **argv
)
10032 /* Must have exactly two arguments. */
10036 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
10042 /* sanitize built-in spec function.
10044 This returns non-NULL, if sanitizing address, thread or
10045 any of the undefined behavior sanitizers. */
10047 static const char *
10048 sanitize_spec_function (int argc
, const char **argv
)
10053 if (strcmp (argv
[0], "address") == 0)
10054 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
10055 if (strcmp (argv
[0], "kernel-address") == 0)
10056 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
10057 if (strcmp (argv
[0], "thread") == 0)
10058 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
10059 if (strcmp (argv
[0], "undefined") == 0)
10060 return ((flag_sanitize
10061 & (SANITIZE_UNDEFINED
| SANITIZE_UNDEFINED_NONDEFAULT
))
10062 && !flag_sanitize_undefined_trap_on_error
) ? "" : NULL
;
10063 if (strcmp (argv
[0], "leak") == 0)
10064 return ((flag_sanitize
10065 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
10066 == SANITIZE_LEAK
) ? "" : NULL
;
10070 /* replace-outfile built-in spec function.
10072 This looks for the first argument in the outfiles array's name and
10073 replaces it with the second argument. */
10075 static const char *
10076 replace_outfile_spec_function (int argc
, const char **argv
)
10079 /* Must have exactly two arguments. */
10083 for (i
= 0; i
< n_infiles
; i
++)
10085 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
10086 outfiles
[i
] = xstrdup (argv
[1]);
10091 /* remove-outfile built-in spec function.
10093 * This looks for the first argument in the outfiles array's name and
10096 static const char *
10097 remove_outfile_spec_function (int argc
, const char **argv
)
10100 /* Must have exactly one argument. */
10104 for (i
= 0; i
< n_infiles
; i
++)
10106 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
10107 outfiles
[i
] = NULL
;
10112 /* Given two version numbers, compares the two numbers.
10113 A version number must match the regular expression
10114 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
10117 compare_version_strings (const char *v1
, const char *v2
)
10122 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
10123 REG_EXTENDED
| REG_NOSUB
) != 0)
10125 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
10126 if (rresult
== REG_NOMATCH
)
10127 fatal_error (input_location
, "invalid version number %qs", v1
);
10128 else if (rresult
!= 0)
10130 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
10131 if (rresult
== REG_NOMATCH
)
10132 fatal_error (input_location
, "invalid version number %qs", v2
);
10133 else if (rresult
!= 0)
10136 return strverscmp (v1
, v2
);
10140 /* version_compare built-in spec function.
10142 This takes an argument of the following form:
10144 <comparison-op> <arg1> [<arg2>] <switch> <result>
10146 and produces "result" if the comparison evaluates to true,
10147 and nothing if it doesn't.
10149 The supported <comparison-op> values are:
10151 >= true if switch is a later (or same) version than arg1
10153 < true if switch is an earlier version than arg1
10155 >< true if switch is arg1 or later, and earlier than arg2
10156 <> true if switch is earlier than arg1 or is arg2 or later
10158 If the switch is not present, the condition is false unless
10159 the first character of the <comparison-op> is '!'.
10162 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
10163 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
10165 static const char *
10166 version_compare_spec_function (int argc
, const char **argv
)
10170 const char *switch_value
= NULL
;
10175 fatal_error (input_location
, "too few arguments to %%:version-compare");
10176 if (argv
[0][0] == '\0')
10178 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
10180 if (argc
!= nargs
+ 3)
10181 fatal_error (input_location
, "too many arguments to %%:version-compare");
10183 switch_len
= strlen (argv
[nargs
+ 1]);
10184 for (i
= 0; i
< n_switches
; i
++)
10185 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
10186 && check_live_switch (i
, switch_len
))
10187 switch_value
= switches
[i
].part1
+ switch_len
;
10189 if (switch_value
== NULL
)
10190 comp1
= comp2
= -1;
10193 comp1
= compare_version_strings (switch_value
, argv
[1]);
10195 comp2
= compare_version_strings (switch_value
, argv
[2]);
10197 comp2
= -1; /* This value unused. */
10200 switch (argv
[0][0] << 8 | argv
[0][1])
10202 case '>' << 8 | '=':
10203 result
= comp1
>= 0;
10205 case '!' << 8 | '<':
10206 result
= comp1
>= 0 || switch_value
== NULL
;
10209 result
= comp1
< 0;
10211 case '!' << 8 | '>':
10212 result
= comp1
< 0 || switch_value
== NULL
;
10214 case '>' << 8 | '<':
10215 result
= comp1
>= 0 && comp2
< 0;
10217 case '<' << 8 | '>':
10218 result
= comp1
< 0 || comp2
>= 0;
10222 fatal_error (input_location
,
10223 "unknown operator %qs in %%:version-compare", argv
[0]);
10228 return argv
[nargs
+ 2];
10231 /* %:include builtin spec function. This differs from %include in that it
10232 can be nested inside a spec, and thus be conditionalized. It takes
10233 one argument, the filename, and looks for it in the startfile path.
10234 The result is always NULL, i.e. an empty expansion. */
10236 static const char *
10237 include_spec_function (int argc
, const char **argv
)
10244 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
10245 read_specs (file
? file
: argv
[0], false, false);
10250 /* %:find-file spec function. This function replaces its argument by
10251 the file found through find_file, that is the -print-file-name gcc
10253 static const char *
10254 find_file_spec_function (int argc
, const char **argv
)
10261 file
= find_file (argv
[0]);
10266 /* %:find-plugindir spec function. This function replaces its argument
10267 by the -iplugindir=<dir> option. `dir' is found through find_file, that
10268 is the -print-file-name gcc program option. */
10269 static const char *
10270 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
10272 const char *option
;
10277 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
10282 /* %:print-asm-header spec function. Print a banner to say that the
10283 following output is from the assembler. */
10285 static const char *
10286 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
10287 const char **argv ATTRIBUTE_UNUSED
)
10289 printf (_("Assembler options\n=================\n\n"));
10290 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
10295 /* Get a random number for -frandom-seed */
10297 static unsigned HOST_WIDE_INT
10298 get_random_number (void)
10300 unsigned HOST_WIDE_INT ret
= 0;
10303 fd
= open ("/dev/urandom", O_RDONLY
);
10306 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
10312 /* Get some more or less random data. */
10313 #ifdef HAVE_GETTIMEOFDAY
10317 gettimeofday (&tv
, NULL
);
10318 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
10322 time_t now
= time (NULL
);
10324 if (now
!= (time_t)-1)
10325 ret
= (unsigned) now
;
10329 return ret
^ getpid ();
10332 /* %:compare-debug-dump-opt spec function. Save the last argument,
10333 expected to be the last -fdump-final-insns option, or generate a
10336 static const char *
10337 compare_debug_dump_opt_spec_function (int arg
,
10338 const char **argv ATTRIBUTE_UNUSED
)
10343 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
10346 fatal_error (input_location
,
10347 "too many arguments to %%:compare-debug-dump-opt");
10349 do_spec_2 ("%{fdump-final-insns=*:%*}", NULL
);
10350 do_spec_1 (" ", 0, NULL
);
10352 if (argbuf
.length () > 0
10353 && strcmp (argv
[argbuf
.length () - 1], ".") != 0)
10355 if (!compare_debug
)
10358 name
= xstrdup (argv
[argbuf
.length () - 1]);
10363 if (argbuf
.length () > 0)
10364 do_spec_2 ("%B.gkd", NULL
);
10365 else if (!compare_debug
)
10368 do_spec_2 ("%{!save-temps*:%g.gkd}%{save-temps*:%B.gkd}", NULL
);
10370 do_spec_1 (" ", 0, NULL
);
10372 gcc_assert (argbuf
.length () > 0);
10374 name
= xstrdup (argbuf
.last ());
10376 char *arg
= quote_spec (xstrdup (name
));
10377 ret
= concat ("-fdump-final-insns=", arg
, NULL
);
10381 which
= compare_debug
< 0;
10382 debug_check_temp_file
[which
] = name
;
10386 unsigned HOST_WIDE_INT value
= get_random_number ();
10388 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
10394 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
10405 /* %:compare-debug-self-opt spec function. Expands to the options
10406 that are to be passed in the second compilation of
10409 static const char *
10410 compare_debug_self_opt_spec_function (int arg
,
10411 const char **argv ATTRIBUTE_UNUSED
)
10414 fatal_error (input_location
,
10415 "too many arguments to %%:compare-debug-self-opt");
10417 if (compare_debug
>= 0)
10421 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
10422 %<fdump-final-insns=* -w -S -o %j \
10423 %{!fcompare-debug-second:-fcompare-debug-second} \
10424 ", compare_debug_opt
, NULL
);
10427 /* %:pass-through-libs spec function. Finds all -l options and input
10428 file names in the lib spec passed to it, and makes a list of them
10429 prepended with the plugin option to cause them to be passed through
10430 to the final link after all the new object files have been added. */
10433 pass_through_libs_spec_func (int argc
, const char **argv
)
10435 char *prepended
= xstrdup (" ");
10437 /* Shlemiel the painter's algorithm. Innately horrible, but at least
10438 we know that there will never be more than a handful of strings to
10439 concat, and it's only once per run, so it's not worth optimising. */
10440 for (n
= 0; n
< argc
; n
++)
10442 char *old
= prepended
;
10443 /* Anything that isn't an option is a full path to an output
10444 file; pass it through if it ends in '.a'. Among options,
10446 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
10448 const char *lopt
= argv
[n
] + 2;
10449 /* Handle both joined and non-joined -l options. If for any
10450 reason there's a trailing -l with no joined or following
10451 arg just discard it. */
10452 if (!*lopt
&& ++n
>= argc
)
10456 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
10459 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
10461 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
10462 argv
[n
], " ", NULL
);
10464 if (prepended
!= old
)
10471 not_actual_file_p (const char *name
)
10473 return (strcmp (name
, "-") == 0
10474 || strcmp (output_file
, HOST_BIT_BUCKET
) == 0);
10477 /* %:dumps spec function. Take an optional argument that overrides
10478 the default extension for -dumpbase and -dumpbase-ext.
10479 Return -dumpdir, -dumpbase and -dumpbase-ext, if needed. */
10481 dumps_spec_func (int argc
, const char **argv ATTRIBUTE_UNUSED
)
10483 const char *ext
= dumpbase_ext
;
10486 char *args
[3] = { NULL
, NULL
, NULL
};
10489 /* Do not compute a default for -dumpbase-ext when -dumpbase was
10490 given explicitly. */
10491 if (dumpbase
&& *dumpbase
&& !ext
)
10496 /* Do not override the explicitly-specified -dumpbase-ext with
10497 the specs-provided overrider. */
10501 else if (argc
!= 0)
10502 fatal_error (input_location
, "too many arguments for %%:dumps");
10506 p
= quote_spec_arg (xstrdup (dumpdir
));
10507 args
[nargs
++] = concat (" -dumpdir ", p
, NULL
);
10512 ext
= input_basename
+ basename_length
;
10514 /* Use the precomputed outbase, or compute dumpbase from
10515 input_basename, just like %b would. */
10518 if (dumpbase
&& *dumpbase
)
10520 base
= xstrdup (dumpbase
);
10521 p
= base
+ outbase_length
;
10522 gcc_checking_assert (strncmp (base
, outbase
, outbase_length
) == 0);
10523 gcc_checking_assert (strcmp (p
, ext
) == 0);
10525 else if (outbase_length
)
10527 base
= xstrndup (outbase
, outbase_length
);
10532 base
= xstrndup (input_basename
, suffixed_basename_length
);
10533 p
= base
+ basename_length
;
10536 if (compare_debug
< 0 || !p
|| strcmp (p
, ext
) != 0)
10542 if (compare_debug
< 0)
10547 p
= concat (base
, gk
, ext
, NULL
);
10553 base
= quote_spec_arg (base
);
10554 args
[nargs
++] = concat (" -dumpbase ", base
, NULL
);
10559 p
= quote_spec_arg (xstrdup (ext
));
10560 args
[nargs
++] = concat (" -dumpbase-ext ", p
, NULL
);
10564 const char *ret
= concat (args
[0], args
[1], args
[2], NULL
);
10566 free (args
[--nargs
]);
10571 /* Returns "" if ARGV[ARGC - 2] is greater than ARGV[ARGC-1].
10572 Otherwise, return NULL. */
10574 static const char *
10575 greater_than_spec_func (int argc
, const char **argv
)
10582 gcc_assert (argc
>= 2);
10584 long arg
= strtol (argv
[argc
- 2], &converted
, 10);
10585 gcc_assert (converted
!= argv
[argc
- 2]);
10587 long lim
= strtol (argv
[argc
- 1], &converted
, 10);
10588 gcc_assert (converted
!= argv
[argc
- 1]);
10596 /* Returns "" if debug_info_level is greater than ARGV[ARGC-1].
10597 Otherwise, return NULL. */
10599 static const char *
10600 debug_level_greater_than_spec_func (int argc
, const char **argv
)
10605 fatal_error (input_location
,
10606 "wrong number of arguments to %%:debug-level-gt");
10608 long arg
= strtol (argv
[0], &converted
, 10);
10609 gcc_assert (converted
!= argv
[0]);
10611 if (debug_info_level
> arg
)
10618 path_prefix_reset (path_prefix
*prefix
)
10620 struct prefix_list
*iter
, *next
;
10621 iter
= prefix
->plist
;
10625 free (const_cast <char *> (iter
->prefix
));
10630 prefix
->max_len
= 0;
10633 /* The function takes 3 arguments: OPTION name, file name and location
10634 where we search for Fortran modules.
10635 When the FILE is found by find_file, return OPTION=path_to_file. */
10637 static const char *
10638 find_fortran_preinclude_file (int argc
, const char **argv
)
10640 char *result
= NULL
;
10644 struct path_prefix prefixes
= { 0, 0, "preinclude" };
10646 /* Search first for 'finclude' folder location for a header file
10647 installed by the compiler (similar to omp_lib.h). */
10648 add_prefix (&prefixes
, argv
[2], NULL
, 0, 0, 0);
10649 #ifdef TOOL_INCLUDE_DIR
10650 /* Then search: <prefix>/<target>/<include>/finclude */
10651 add_prefix (&prefixes
, TOOL_INCLUDE_DIR
"/finclude/",
10654 #ifdef NATIVE_SYSTEM_HEADER_DIR
10655 /* Then search: <sysroot>/usr/include/finclude/<multilib> */
10656 add_sysrooted_hdrs_prefix (&prefixes
, NATIVE_SYSTEM_HEADER_DIR
"/finclude/",
10660 const char *path
= find_a_file (&include_prefixes
, argv
[1], R_OK
, false);
10662 result
= concat (argv
[0], path
, NULL
);
10665 path
= find_a_file (&prefixes
, argv
[1], R_OK
, false);
10667 result
= concat (argv
[0], path
, NULL
);
10670 path_prefix_reset (&prefixes
);
10674 /* If any character in ORIG fits QUOTE_P (_, P), reallocate the string
10675 so as to precede every one of them with a backslash. Return the
10676 original string or the reallocated one. */
10678 static inline char *
10679 quote_string (char *orig
, bool (*quote_p
)(char, void *), void *p
)
10681 int len
, number_of_space
= 0;
10683 for (len
= 0; orig
[len
]; len
++)
10684 if (quote_p (orig
[len
], p
))
10687 if (number_of_space
)
10689 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
10691 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
10693 if (quote_p (orig
[j
], p
))
10694 new_spec
[k
++] = '\\';
10695 new_spec
[k
] = orig
[j
];
10704 /* Return true iff C is any of the characters convert_white_space
10708 whitespace_to_convert_p (char c
, void *)
10710 return (c
== ' ' || c
== '\t');
10713 /* Insert backslash before spaces in ORIG (usually a file path), to
10714 avoid being broken by spec parser.
10716 This function is needed as do_spec_1 treats white space (' ' and '\t')
10717 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
10718 the file name should be treated as a single argument rather than being
10719 broken into multiple. Solution is to insert '\\' before the space in a
10722 This function converts and only converts all occurrence of ' '
10723 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
10725 "a b" -> "a\\ \\ b"
10727 "a\\ b" -> "a\\\\ b"
10729 orig: input null-terminating string that was allocated by xalloc. The
10730 memory it points to might be freed in this function. Behavior undefined
10731 if ORIG wasn't xalloced or was freed already at entry.
10733 Return: ORIG if no conversion needed. Otherwise a newly allocated string
10734 that was converted from ORIG. */
10737 convert_white_space (char *orig
)
10739 return quote_string (orig
, whitespace_to_convert_p
, NULL
);
10742 /* Return true iff C matches any of the spec active characters. */
10744 quote_spec_char_p (char c
, void *)
10761 /* Like convert_white_space, but deactivate all active spec chars by
10764 static inline char *
10765 quote_spec (char *orig
)
10767 return quote_string (orig
, quote_spec_char_p
, NULL
);
10770 /* Like quote_spec, but also turn an empty string into the spec for an
10773 static inline char *
10774 quote_spec_arg (char *orig
)
10779 return xstrdup ("%\"");
10782 return quote_spec (orig
);
10785 /* Restore all state within gcc.c to the initial state, so that the driver
10786 code can be safely re-run in-process.
10788 Many const char * variables are referenced by static specs (see
10789 INIT_STATIC_SPEC above). These variables are restored to their default
10790 values by a simple loop over the static specs.
10792 For other variables, we directly restore them all to their initial
10793 values (often implicitly 0).
10795 Free the various obstacks in this file, along with "opts_obstack"
10798 This function also restores any environment variables that were changed. */
10801 driver::finalize ()
10804 diagnostic_finish (global_dc
);
10807 at_file_supplied
= 0;
10808 print_help_list
= 0;
10810 verbose_only_flag
= 0;
10811 print_subprocess_help
= 0;
10813 report_times_to_file
= NULL
;
10814 target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
10815 target_system_root_changed
= 0;
10816 target_sysroot_suffix
= 0;
10817 target_sysroot_hdrs_suffix
= 0;
10818 save_temps_flag
= SAVE_TEMPS_NONE
;
10819 save_temps_overrides_dumpdir
= false;
10820 dumpdir_trailing_dash_added
= false;
10823 free (dumpbase_ext
);
10825 dumpdir
= dumpbase
= dumpbase_ext
= outbase
= NULL
;
10826 dumpdir_length
= outbase_length
= 0;
10827 spec_machine
= DEFAULT_TARGET_MACHINE
;
10828 greatest_status
= 1;
10830 obstack_free (&obstack
, NULL
);
10831 obstack_free (&opts_obstack
, NULL
); /* in opts.c */
10832 obstack_free (&collect_obstack
, NULL
);
10834 link_command_spec
= LINK_COMMAND_SPEC
;
10836 obstack_free (&multilib_obstack
, NULL
);
10838 user_specs_head
= NULL
;
10839 user_specs_tail
= NULL
;
10841 /* Within the "compilers" vec, the fields "suffix" and "spec" were
10842 statically allocated for the default compilers, but dynamically
10843 allocated for additional compilers. Delete them for the latter. */
10844 for (int i
= n_default_compilers
; i
< n_compilers
; i
++)
10846 free (const_cast <char *> (compilers
[i
].suffix
));
10847 free (const_cast <char *> (compilers
[i
].spec
));
10849 XDELETEVEC (compilers
);
10853 linker_options
.truncate (0);
10854 assembler_options
.truncate (0);
10855 preprocessor_options
.truncate (0);
10857 path_prefix_reset (&exec_prefixes
);
10858 path_prefix_reset (&startfile_prefixes
);
10859 path_prefix_reset (&include_prefixes
);
10861 machine_suffix
= 0;
10862 just_machine_suffix
= 0;
10863 gcc_exec_prefix
= 0;
10864 gcc_libexec_prefix
= 0;
10865 set_static_spec_shared (&md_exec_prefix
, MD_EXEC_PREFIX
);
10866 set_static_spec_shared (&md_startfile_prefix
, MD_STARTFILE_PREFIX
);
10867 set_static_spec_shared (&md_startfile_prefix_1
, MD_STARTFILE_PREFIX_1
);
10869 multilib_os_dir
= 0;
10872 /* Free any specs dynamically-allocated by set_spec.
10873 These will be at the head of the list, before the
10874 statically-allocated ones. */
10877 while (specs
!= static_specs
)
10879 spec_list
*next
= specs
->next
;
10880 free (const_cast <char *> (specs
->name
));
10886 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
10888 spec_list
*sl
= &static_specs
[i
];
10891 free (const_cast <char *> (*(sl
->ptr_spec
)));
10892 sl
->alloc_p
= false;
10894 *(sl
->ptr_spec
) = sl
->default_ptr
;
10897 extra_specs
= NULL
;
10900 processing_spec_function
= 0;
10908 execution_count
= 0;
10911 temp_filename
= NULL
;
10912 temp_filename_length
= 0;
10913 always_delete_queue
= NULL
;
10914 failure_delete_queue
= NULL
;
10916 XDELETEVEC (switches
);
10919 n_switches_alloc
= 0;
10922 compare_debug_second
= 0;
10923 compare_debug_opt
= NULL
;
10924 for (int i
= 0; i
< 2; i
++)
10926 switches_debug_check
[i
] = NULL
;
10927 n_switches_debug_check
[i
] = 0;
10928 n_switches_alloc_debug_check
[i
] = 0;
10929 debug_check_temp_file
[i
] = NULL
;
10932 XDELETEVEC (infiles
);
10935 n_infiles_alloc
= 0;
10937 combine_inputs
= false;
10938 added_libraries
= 0;
10939 XDELETEVEC (outfiles
);
10942 last_language_n_infiles
= 0;
10943 gcc_input_filename
= NULL
;
10944 input_file_number
= 0;
10945 input_filename_length
= 0;
10946 basename_length
= 0;
10947 suffixed_basename_length
= 0;
10948 input_basename
= NULL
;
10949 input_suffix
= NULL
;
10950 /* We don't need to purge "input_stat", just to unset "input_stat_set". */
10951 input_stat_set
= 0;
10952 input_file_compiler
= NULL
;
10954 delete_this_arg
= 0;
10955 this_is_output_file
= 0;
10956 this_is_library_file
= 0;
10957 this_is_linker_script
= 0;
10958 input_from_pipe
= 0;
10959 suffix_subst
= NULL
;
10964 used_arg
.finalize ();
10968 Targets can provide configure-time default options in
10969 OPTION_DEFAULT_SPECS. The jit needs to access these, but
10970 they are expressed in the spec language.
10972 Run just enough of the driver to be able to expand these
10973 specs, and then call the callback CB on each
10974 such option. The options strings are *without* a leading
10975 '-' character e.g. ("march=x86-64"). Finally, clean up. */
10978 driver_get_configure_time_options (void (*cb
) (const char *option
,
10984 obstack_init (&obstack
);
10985 init_opts_obstack ();
10988 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
10989 do_option_spec (option_default_specs
[i
].name
,
10990 option_default_specs
[i
].spec
);
10992 for (i
= 0; (int) i
< n_switches
; i
++)
10994 gcc_assert (switches
[i
].part1
);
10995 (*cb
) (switches
[i
].part1
, user_data
);
10998 obstack_free (&opts_obstack
, NULL
);
10999 obstack_free (&obstack
, NULL
);