1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2024 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". */
30 #define INCLUDE_STRING
33 #include "coretypes.h"
34 #include "multilib.h" /* before tm.h */
40 #include "opt-suggestions.h"
42 #include "diagnostic.h"
45 #include "filenames.h"
46 #include "spellcheck.h"
47 #include "opts-jobserver.h"
48 #include "common/common-target.h"
49 #include "gcc-urlifier.h"
52 #define MATH_LIBRARY "m"
56 /* Manage the manipulation of env vars.
58 We poison "getenv" and "putenv", so that all enviroment-handling is
59 done through this class. Note that poisoning happens in the
60 preprocessor at the identifier level, and doesn't distinguish between
64 Hence we need to use "get" for the accessor method, not "getenv". */
69 void init (bool can_restore
, bool debug
);
70 const char *get (const char *name
);
71 void xput (const char *string
);
86 /* The singleton instance of class env_manager. */
88 static env_manager env
;
90 /* Initializer for class env_manager.
92 We can't do this as a constructor since we have a statically
93 allocated instance ("env" above). */
96 env_manager::init (bool can_restore
, bool debug
)
98 m_can_restore
= can_restore
;
102 /* Get the value of NAME within the environment. Essentially
103 a wrapper for ::getenv, but adding logging, and the possibility
104 of caching results. */
107 env_manager::get (const char *name
)
109 const char *result
= ::getenv (name
);
111 fprintf (stderr
, "env_manager::getenv (%s) -> %s\n", name
, result
);
115 /* Put the given KEY=VALUE entry STRING into the environment.
116 If the env_manager was initialized with CAN_RESTORE set, then
117 also record the old value of KEY within the environment, so that it
118 can be later restored. */
121 env_manager::xput (const char *string
)
124 fprintf (stderr
, "env_manager::xput (%s)\n", string
);
126 fnotice (stderr
, "%s\n", string
);
130 char *equals
= strchr (const_cast <char *> (string
), '=');
134 kv
.m_key
= xstrndup (string
, equals
- string
);
135 const char *cur_value
= ::getenv (kv
.m_key
);
137 fprintf (stderr
, "saving old value: %s\n",cur_value
);
138 kv
.m_value
= cur_value
? xstrdup (cur_value
) : NULL
;
139 m_keys
.safe_push (kv
);
142 ::putenv (CONST_CAST (char *, string
));
145 /* Undo any xputenv changes made since last restore.
146 Can only be called if the env_manager was initialized with
147 CAN_RESTORE enabled. */
150 env_manager::restore ()
155 gcc_assert (m_can_restore
);
157 FOR_EACH_VEC_ELT_REVERSE (m_keys
, i
, item
)
160 printf ("restoring saved key: %s value: %s\n", item
->m_key
, item
->m_value
);
162 ::setenv (item
->m_key
, item
->m_value
, 1);
164 ::unsetenv (item
->m_key
);
166 free (item
->m_value
);
172 /* Forbid other uses of getenv and putenv. */
173 #if (GCC_VERSION >= 3000)
174 #pragma GCC poison getenv putenv
179 /* By default there is no special suffix for target executables. */
180 #ifdef TARGET_EXECUTABLE_SUFFIX
181 #define HAVE_TARGET_EXECUTABLE_SUFFIX
183 #define TARGET_EXECUTABLE_SUFFIX ""
186 /* By default there is no special suffix for host executables. */
187 #ifdef HOST_EXECUTABLE_SUFFIX
188 #define HAVE_HOST_EXECUTABLE_SUFFIX
190 #define HOST_EXECUTABLE_SUFFIX ""
193 /* By default, the suffix for target object files is ".o". */
194 #ifdef TARGET_OBJECT_SUFFIX
195 #define HAVE_TARGET_OBJECT_SUFFIX
197 #define TARGET_OBJECT_SUFFIX ".o"
200 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
202 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
203 #ifndef LIBRARY_PATH_ENV
204 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
207 /* If a stage of compilation returns an exit status >= 1,
208 compilation of that file ceases. */
210 #define MIN_FATAL_STATUS 1
212 /* Flag set by cppspec.cc to 1. */
215 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
216 static bool at_file_supplied
;
218 /* Definition of string containing the arguments given to configure. */
219 #include "configargs.h"
221 /* Flag saying to print the command line options understood by gcc and its
224 static int print_help_list
;
226 /* Flag saying to print the version of gcc and its sub-processes. */
228 static int print_version
;
230 /* Flag that stores string prefix for which we provide bash completion. */
232 static const char *completion
= NULL
;
234 /* Flag indicating whether we should ONLY print the command and
235 arguments (like verbose_flag) without executing the command.
236 Displayed arguments are quoted so that the generated command
237 line is suitable for execution. This is intended for use in
238 shell scripts to capture the driver-generated command line. */
239 static int verbose_only_flag
;
241 /* Flag indicating how to print command line options of sub-processes. */
243 static int print_subprocess_help
;
245 /* Linker suffix passed to -fuse-ld=... */
246 static const char *use_ld
;
248 /* Whether we should report subprocess execution times to a file. */
250 FILE *report_times_to_file
= NULL
;
252 /* Nonzero means place this string before uses of /, so that include
253 and library files can be found in an alternate location. */
255 #ifdef TARGET_SYSTEM_ROOT
256 #define DEFAULT_TARGET_SYSTEM_ROOT (TARGET_SYSTEM_ROOT)
258 #define DEFAULT_TARGET_SYSTEM_ROOT (0)
260 static const char *target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
262 /* Nonzero means pass the updated target_system_root to the compiler. */
264 static int target_system_root_changed
;
266 /* Nonzero means append this string to target_system_root. */
268 static const char *target_sysroot_suffix
= 0;
270 /* Nonzero means append this string to target_system_root for headers. */
272 static const char *target_sysroot_hdrs_suffix
= 0;
274 /* Nonzero means write "temp" files in source directory
275 and use the source file's name in them, and don't delete them. */
277 static enum save_temps
{
278 SAVE_TEMPS_NONE
, /* no -save-temps */
279 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
280 SAVE_TEMPS_DUMP
, /* -save-temps in dumpdir */
281 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
284 /* Set this iff the dumppfx implied by a -save-temps=* option is to
285 override a -dumpdir option, if any. */
286 static bool save_temps_overrides_dumpdir
= false;
288 /* -dumpdir, -dumpbase and -dumpbase-ext flags passed in, possibly
289 rearranged as they are to be passed down, e.g., dumpbase and
290 dumpbase_ext may be cleared if integrated with dumpdir or
292 static char *dumpdir
, *dumpbase
, *dumpbase_ext
;
294 /* Usually the length of the string in dumpdir. However, during
295 linking, it may be shortened to omit a driver-added trailing dash,
296 by then replaced with a trailing period, that is still to be passed
297 to sub-processes in -dumpdir, but not to be generally used in spec
298 filename expansions. See maybe_run_linker. */
299 static size_t dumpdir_length
= 0;
301 /* Set if the last character in dumpdir is (or was) a dash that the
302 driver added to dumpdir after dumpbase or linker output name. */
303 static bool dumpdir_trailing_dash_added
= false;
305 /* True if -r, -shared, -pie, or -no-pie were specified on the command
307 static bool any_link_options_p
;
309 /* True if -static was specified on the command line. */
310 static bool static_p
;
312 /* Basename of dump and aux outputs, computed from dumpbase (given or
313 derived from output name), to override input_basename in non-%w %b
315 static char *outbase
;
316 static size_t outbase_length
= 0;
318 /* The compiler version. */
320 static const char *compiler_version
;
322 /* The target version. */
324 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
326 /* The target machine. */
328 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
329 static const char *spec_host_machine
= DEFAULT_REAL_TARGET_MACHINE
;
331 /* List of offload targets. Separated by colon. Empty string for
332 -foffload=disable. */
334 static char *offload_targets
= NULL
;
336 #if OFFLOAD_DEFAULTED
337 /* Set to true if -foffload has not been used and offload_targets
338 is set to the configured in default. */
339 static bool offload_targets_default
;
342 /* Nonzero if cross-compiling.
343 When -b is used, the value comes from the `specs' file. */
345 #ifdef CROSS_DIRECTORY_STRUCTURE
346 static const char *cross_compile
= "1";
348 static const char *cross_compile
= "0";
351 /* Greatest exit code of sub-processes that has been encountered up to
353 static int greatest_status
= 1;
355 /* This is the obstack which we use to allocate many strings. */
357 static struct obstack obstack
;
359 /* This is the obstack to build an environment variable to pass to
360 collect2 that describes all of the relevant switches of what to
361 pass the compiler in building the list of pointers to constructors
364 static struct obstack collect_obstack
;
366 /* Forward declaration for prototypes. */
370 static void init_spec (void);
371 static void store_arg (const char *, int, int);
372 static void insert_wrapper (const char *);
373 static char *load_specs (const char *);
374 static void read_specs (const char *, bool, bool);
375 static void set_spec (const char *, const char *, bool);
376 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
377 static char *build_search_list (const struct path_prefix
*, const char *,
379 static void xputenv (const char *);
380 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
382 static int access_check (const char *, int);
383 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
384 static char *find_a_program (const char *);
385 static void add_prefix (struct path_prefix
*, const char *, const char *,
387 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
388 const char *, int, int, int);
389 static char *skip_whitespace (char *);
390 static void delete_if_ordinary (const char *);
391 static void delete_temp_files (void);
392 static void delete_failure_queue (void);
393 static void clear_failure_queue (void);
394 static int check_live_switch (int, int);
395 static const char *handle_braces (const char *);
396 static inline bool input_suffix_matches (const char *, const char *);
397 static inline bool switch_matches (const char *, const char *, int);
398 static inline void mark_matching_switches (const char *, const char *, int);
399 static inline void process_marked_switches (void);
400 static const char *process_brace_body (const char *, const char *, const char *, int, int);
401 static const struct spec_function
*lookup_spec_function (const char *);
402 static const char *eval_spec_function (const char *, const char *, const char *);
403 static const char *handle_spec_function (const char *, bool *, const char *);
404 static char *save_string (const char *, int);
405 static void set_collect_gcc_options (void);
406 static int do_spec_1 (const char *, int, const char *);
407 static int do_spec_2 (const char *, const char *);
408 static void do_option_spec (const char *, const char *);
409 static void do_self_spec (const char *);
410 static const char *find_file (const char *);
411 static int is_directory (const char *, bool);
412 static const char *validate_switches (const char *, bool, bool);
413 static void validate_all_switches (void);
414 static inline void validate_switches_from_spec (const char *, bool);
415 static void give_switch (int, int);
416 static int default_arg (const char *, int);
417 static void set_multilib_dir (void);
418 static void print_multilib_info (void);
419 static void display_help (void);
420 static void add_preprocessor_option (const char *, int);
421 static void add_assembler_option (const char *, int);
422 static void add_linker_option (const char *, int);
423 static void process_command (unsigned int, struct cl_decoded_option
*);
424 static int execute (void);
425 static void alloc_args (void);
426 static void clear_args (void);
427 static void fatal_signal (int);
428 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
429 static void init_gcc_specs (struct obstack
*, const char *, const char *,
432 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
433 static const char *convert_filename (const char *, int, int);
436 static void try_generate_repro (const char **argv
);
437 static const char *getenv_spec_function (int, const char **);
438 static const char *if_exists_spec_function (int, const char **);
439 static const char *if_exists_else_spec_function (int, const char **);
440 static const char *if_exists_then_else_spec_function (int, const char **);
441 static const char *sanitize_spec_function (int, const char **);
442 static const char *replace_outfile_spec_function (int, const char **);
443 static const char *remove_outfile_spec_function (int, const char **);
444 static const char *version_compare_spec_function (int, const char **);
445 static const char *include_spec_function (int, const char **);
446 static const char *find_file_spec_function (int, const char **);
447 static const char *find_plugindir_spec_function (int, const char **);
448 static const char *print_asm_header_spec_function (int, const char **);
449 static const char *compare_debug_dump_opt_spec_function (int, const char **);
450 static const char *compare_debug_self_opt_spec_function (int, const char **);
451 static const char *pass_through_libs_spec_func (int, const char **);
452 static const char *dumps_spec_func (int, const char **);
453 static const char *greater_than_spec_func (int, const char **);
454 static const char *debug_level_greater_than_spec_func (int, const char **);
455 static const char *dwarf_version_greater_than_spec_func (int, const char **);
456 static const char *find_fortran_preinclude_file (int, const char **);
457 static const char *join_spec_func (int, const char **);
458 static char *convert_white_space (char *);
459 static char *quote_spec (char *);
460 static char *quote_spec_arg (char *);
461 static bool not_actual_file_p (const char *);
464 /* The Specs Language
466 Specs are strings containing lines, each of which (if not blank)
467 is made up of a program name, and arguments separated by spaces.
468 The program name must be exact and start from root, since no path
469 is searched and it is unreliable to depend on the current working directory.
470 Redirection of input or output is not supported; the subprograms must
471 accept filenames saying what files to read and write.
473 In addition, the specs can contain %-sequences to substitute variable text
474 or for conditional text. Here is a table of all defined %-sequences.
475 Note that spaces are not generated automatically around the results of
476 expanding these sequences; therefore, you can concatenate them together
477 or with constant text in a single argument.
479 %% substitute one % into the program name or argument.
480 %" substitute an empty argument.
481 %i substitute the name of the input file being processed.
482 %b substitute the basename for outputs related with the input file
483 being processed. This is often a substring of the input file name,
484 up to (and not including) the last period but, unless %w is active,
485 it is affected by the directory selected by -save-temps=*, by
486 -dumpdir, and, in case of multiple compilations, even by -dumpbase
487 and -dumpbase-ext and, in case of linking, by the linker output
488 name. When %w is active, it derives the main output name only from
489 the input file base name; when it is not, it names aux/dump output
491 %B same as %b, but include the input file suffix (text after the last
494 substitute a file name that has suffix SUFFIX and is chosen
495 once per compilation, and mark the argument a la %d. To reduce
496 exposure to denial-of-service attacks, the file name is now
497 chosen in a way that is hard to predict even when previously
498 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
499 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
500 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
501 had been pre-processed. Previously, %g was simply substituted
502 with a file name chosen once per compilation, without regard
503 to any appended suffix (which was therefore treated just like
504 ordinary text), making such attacks more likely to succeed.
506 like %g, but if -pipe is in effect, expands simply to "-".
508 like %g, but if -pipe is in effect, expands to nothing. (We have both
509 %| and %m to accommodate differences between system assemblers; see
510 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
512 like %g, but generates a new temporary file name even if %uSUFFIX
515 substitutes the last file name generated with %uSUFFIX, generating a
516 new one if there is no such last file name. In the absence of any
517 %uSUFFIX, this is just like %gSUFFIX, except they don't share
518 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
519 would involve the generation of two distinct file names, one
520 for each `%g.s' and another for each `%U.s'. Previously, %U was
521 simply substituted with a file name chosen for the previous %u,
522 without regard to any appended suffix.
524 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
525 writable, and if save-temps is off; otherwise, substitute the name
526 of a temporary file, just like %u. This temporary file is not
527 meant for communication between processes, but rather as a junk
530 substitutes .SUFFIX for the suffixes of a matched switch's args when
531 it is subsequently output with %*. SUFFIX is terminated by the next
533 %d marks the argument containing or following the %d as a
534 temporary file name, so that file will be deleted if GCC exits
535 successfully. Unlike %g, this contributes no text to the argument.
536 %w marks the argument containing or following the %w as the
537 "output file" of this compilation. This puts the argument
538 into the sequence of arguments that %o will substitute later.
539 %V indicates that this compilation produces no "output file".
541 like %{...} but marks the last argument supplied within as a file
542 to be deleted on failure.
544 like %{...} but puts the result into a FILE and substitutes @FILE
545 if an @file argument has been supplied.
546 %o substitutes the names of all the output files, with spaces
547 automatically placed around them. You should write spaces
548 around the %o as well or the results are undefined.
549 %o is for use in the specs for running the linker.
550 Input files whose names have no recognized suffix are not compiled
551 at all, but they are included among the output files, so they will
553 %O substitutes the suffix for object files. Note that this is
554 handled specially when it immediately follows %g, %u, or %U
555 (with or without a suffix argument) because of the need for
556 those to form complete file names. The handling is such that
557 %O is treated exactly as if it had already been substituted,
558 except that %g, %u, and %U do not currently support additional
559 SUFFIX characters following %O as they would following, for
561 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
562 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
563 and -B options) and -imultilib as necessary.
564 %s current argument is the name of a library or startup file of some sort.
565 Search for that file in a standard list of directories
566 and substitute the full name found.
567 %T current argument is the name of a linker script.
568 Search for that file in the current list of directories to scan for
569 libraries. If the file is located, insert a --script option into the
570 command line followed by the full path name found. If the file is
571 not found then generate an error message.
572 Note: the current working directory is not searched.
573 %eSTR Print STR as an error message. STR is terminated by a newline.
574 Use this when inconsistent options are detected.
575 %nSTR Print STR as a notice. STR is terminated by a newline.
576 %x{OPTION} Accumulate an option for %X.
577 %X Output the accumulated linker options specified by compilations.
578 %Y Output the accumulated assembler options specified by compilations.
579 %Z Output the accumulated preprocessor options specified by compilations.
580 %a process ASM_SPEC as a spec.
581 This allows config.h to specify part of the spec for running as.
582 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
583 used here. This can be used to run a post-processor after the
584 assembler has done its job.
585 %D Dump out a -L option for each directory in startfile_prefixes.
586 If multilib_dir is set, extra entries are generated with it affixed.
587 %l process LINK_SPEC as a spec.
588 %L process LIB_SPEC as a spec.
589 %M Output multilib_os_dir.
590 %P Output a RUNPATH_OPTION for each directory in startfile_prefixes.
591 %G process LIBGCC_SPEC as a spec.
592 %R Output the concatenation of target_system_root and
593 target_sysroot_suffix.
594 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
595 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
596 %C process CPP_SPEC as a spec.
597 %1 process CC1_SPEC as a spec.
598 %2 process CC1PLUS_SPEC as a spec.
599 %* substitute the variable part of a matched option. (See below.)
600 Note that each comma in the substituted string is replaced by
601 a single space. A space is appended after the last substition
602 unless there is more text in current sequence.
603 %<S remove all occurrences of -S from the command line.
604 Note - this command is position dependent. % commands in the
605 spec string before this one will see -S, % commands in the
606 spec string after this one will not.
607 %>S Similar to "%<S", but keep it in the GCC command line.
608 %<S* remove all occurrences of all switches beginning with -S from the
611 Call the named function FUNCTION, passing it ARGS. ARGS is
612 first processed as a nested spec string, then split into an
613 argument vector in the usual fashion. The function returns
614 a string which is processed as if it had appeared literally
615 as part of the current spec.
616 %{S} substitutes the -S switch, if that switch was given to GCC.
617 If that switch was not specified, this substitutes nothing.
618 Here S is a metasyntactic variable.
619 %{S*} substitutes all the switches specified to GCC whose names start
620 with -S. This is used for -o, -I, etc; switches that take
621 arguments. GCC considers `-o foo' as being one switch whose
622 name starts with `o'. %{o*} would substitute this text,
623 including the space; thus, two arguments would be generated.
624 %{S*&T*} likewise, but preserve order of S and T options (the order
625 of S and T in the spec is not significant). Can be any number
626 of ampersand-separated variables; for each the wild card is
627 optional. Useful for CPP as %{D*&U*&A*}.
629 %{S:X} substitutes X, if the -S switch was given to GCC.
630 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
631 %{S*:X} substitutes X if one or more switches whose names start
632 with -S was given to GCC. Normally X is substituted only
633 once, no matter how many such switches appeared. However,
634 if %* appears somewhere in X, then X will be substituted
635 once for each matching switch, with the %* replaced by the
636 part of that switch that matched the '*'. A space will be
637 appended after the last substition unless there is more
638 text in current sequence.
639 %{.S:X} substitutes X, if processing a file with suffix S.
640 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
641 %{,S:X} substitutes X, if processing a file which will use spec S.
642 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
644 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
645 combined with '!', '.', ',', and '*' as above binding stronger
647 If %* appears in X, all of the alternatives must be starred, and
648 only the first matching alternative is substituted.
649 %{%:function(args):X}
650 Call function named FUNCTION with args ARGS. If the function
651 returns non-NULL, then X is substituted, if it returns
652 NULL, it isn't substituted.
653 %{S:X; if S was given to GCC, substitutes X;
654 T:Y; else if T was given to GCC, substitutes Y;
655 :D} else substitutes D. There can be as many clauses as you need.
656 This may be combined with '.', '!', ',', '|', and '*' as above.
658 %(Spec) processes a specification defined in a specs file as *Spec:
660 The switch matching text S in a %{S}, %{S:X}, or similar construct can use
661 a backslash to ignore the special meaning of the character following it,
662 thus allowing literal matching of a character that is otherwise specially
663 treated. For example, %{std=iso9899\:1999:X} substitutes X if the
664 -std=iso9899:1999 option is given.
666 The conditional text X in a %{S:X} or similar construct may contain
667 other nested % constructs or spaces, or even newlines. They are
668 processed as usual, as described above. Trailing white space in X is
669 ignored. White space may also appear anywhere on the left side of the
670 colon in these constructs, except between . or * and the corresponding
673 The -O, -f, -g, -m, and -W switches are handled specifically in these
674 constructs. If another value of -O or the negated form of a -f, -m, or
675 -W switch is found later in the command line, the earlier switch
676 value is ignored, except with {S*} where S is just one letter; this
677 passes all matching options.
679 The character | at the beginning of the predicate text is used to indicate
680 that a command should be piped to the following command, but only if -pipe
683 Note that it is built into GCC which switches take arguments and which
684 do not. You might think it would be useful to generalize this to
685 allow each compiler's spec to say which switches take arguments. But
686 this cannot be done in a consistent fashion. GCC cannot even decide
687 which input files have been specified without knowing which switches
688 take arguments, and it must know which input files to compile in order
689 to tell which compilers to run.
691 GCC also knows implicitly that arguments starting in `-l' are to be
692 treated as compiler output files, and passed to the linker in their
693 proper position among the other output files. */
695 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
697 /* config.h can define ASM_SPEC to provide extra args to the assembler
698 or extra switch-translations. */
703 /* config.h can define ASM_FINAL_SPEC to run a post processor after
704 the assembler has run. */
705 #ifndef ASM_FINAL_SPEC
706 #define ASM_FINAL_SPEC \
708 objcopy --extract-dwo \
709 %{c:%{o*:%*}%{!o*:%w%b%O}}%{!c:%U%O} \
711 objcopy --strip-dwo \
712 %{c:%{o*:%*}%{!o*:%w%b%O}}%{!c:%U%O} \
716 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
717 or extra switch-translations. */
722 /* Operating systems can define OS_CC1_SPEC to provide extra args to cc1 and
723 cc1plus or extra switch-translations. The OS_CC1_SPEC is appended
724 to CC1_SPEC in the initialization of cc1_spec. */
726 #define OS_CC1_SPEC ""
729 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
730 or extra switch-translations. */
735 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
736 or extra switch-translations. */
738 #define CC1PLUS_SPEC ""
741 /* config.h can define LINK_SPEC to provide extra args to the linker
742 or extra switch-translations. */
747 /* config.h can define LIB_SPEC to override the default libraries. */
749 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
752 /* When using -fsplit-stack we need to wrap pthread_create, in order
753 to initialize the stack guard. We always use wrapping, rather than
754 shared library ordering, and we keep the wrapper function in
755 libgcc. This is not yet a real spec, though it could become one;
756 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
757 only works with GNU ld and gold. */
758 #ifdef HAVE_GOLD_NON_DEFAULT_SPLIT_STACK
759 #define STACK_SPLIT_SPEC " %{fsplit-stack: -fuse-ld=gold --wrap=pthread_create}"
761 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
765 #define STATIC_LIBASAN_LIBS \
766 " %{static-libasan|static:%:include(libsanitizer.spec)%(link_libasan)}"
767 #ifdef LIBASAN_EARLY_SPEC
768 #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
769 #elif defined(HAVE_LD_STATIC_DYNAMIC)
770 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
771 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
774 #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
778 #ifndef LIBASAN_EARLY_SPEC
779 #define LIBASAN_EARLY_SPEC ""
782 #ifndef LIBHWASAN_SPEC
783 #define STATIC_LIBHWASAN_LIBS \
784 " %{static-libhwasan|static:%:include(libsanitizer.spec)%(link_libhwasan)}"
785 #ifdef LIBHWASAN_EARLY_SPEC
786 #define LIBHWASAN_SPEC STATIC_LIBHWASAN_LIBS
787 #elif defined(HAVE_LD_STATIC_DYNAMIC)
788 #define LIBHWASAN_SPEC "%{static-libhwasan:" LD_STATIC_OPTION \
789 "} -lhwasan %{static-libhwasan:" LD_DYNAMIC_OPTION "}" \
790 STATIC_LIBHWASAN_LIBS
792 #define LIBHWASAN_SPEC "-lhwasan" STATIC_LIBHWASAN_LIBS
796 #ifndef LIBHWASAN_EARLY_SPEC
797 #define LIBHWASAN_EARLY_SPEC ""
801 #define STATIC_LIBTSAN_LIBS \
802 " %{static-libtsan|static:%:include(libsanitizer.spec)%(link_libtsan)}"
803 #ifdef LIBTSAN_EARLY_SPEC
804 #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
805 #elif defined(HAVE_LD_STATIC_DYNAMIC)
806 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
807 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
810 #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
814 #ifndef LIBTSAN_EARLY_SPEC
815 #define LIBTSAN_EARLY_SPEC ""
819 #define STATIC_LIBLSAN_LIBS \
820 " %{static-liblsan|static:%:include(libsanitizer.spec)%(link_liblsan)}"
821 #ifdef LIBLSAN_EARLY_SPEC
822 #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
823 #elif defined(HAVE_LD_STATIC_DYNAMIC)
824 #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
825 "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
828 #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
832 #ifndef LIBLSAN_EARLY_SPEC
833 #define LIBLSAN_EARLY_SPEC ""
836 #ifndef LIBUBSAN_SPEC
837 #define STATIC_LIBUBSAN_LIBS \
838 " %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}"
839 #ifdef HAVE_LD_STATIC_DYNAMIC
840 #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
841 "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
844 #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
848 /* Linker options for compressed debug sections. */
849 #if HAVE_LD_COMPRESS_DEBUG == 0
850 /* No linker support. */
851 #define LINK_COMPRESS_DEBUG_SPEC \
852 " %{gz*:%e-gz is not supported in this configuration} "
853 #elif HAVE_LD_COMPRESS_DEBUG == 1
854 /* ELF gABI style. */
855 #define LINK_COMPRESS_DEBUG_SPEC \
856 " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
857 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
858 " %{gz=zstd:%e-gz=zstd is not supported in this configuration} " \
859 " %{gz=zlib-gnu:}" /* Ignore silently zlib-gnu option value. */
860 #elif HAVE_LD_COMPRESS_DEBUG == 2
861 /* ELF gABI style and ZSTD. */
862 #define LINK_COMPRESS_DEBUG_SPEC \
863 " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
864 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
865 " %{gz=zstd:" LD_COMPRESS_DEBUG_OPTION "=zstd}" \
866 " %{gz=zlib-gnu:}" /* Ignore silently zlib-gnu option value. */
868 #error Unknown value for HAVE_LD_COMPRESS_DEBUG.
871 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
874 #if defined(REAL_LIBGCC_SPEC)
875 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
876 #elif defined(LINK_LIBGCC_SPECIAL_1)
877 /* Have gcc do the search for libgcc.a. */
878 #define LIBGCC_SPEC "libgcc.a%s"
880 #define LIBGCC_SPEC "-lgcc"
884 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
885 #ifndef STARTFILE_SPEC
886 #define STARTFILE_SPEC \
887 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
890 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
892 #define ENDFILE_SPEC ""
896 #define LINKER_NAME "collect2"
899 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
900 #define ASM_MAP " %{ffile-prefix-map=*:--debug-prefix-map %*} %{fdebug-prefix-map=*:--debug-prefix-map %*}"
905 /* Assembler options for compressed debug sections. */
906 #if HAVE_LD_COMPRESS_DEBUG == 0
907 /* Reject if the linker cannot write compressed debug sections. */
908 #define ASM_COMPRESS_DEBUG_SPEC \
909 " %{gz*:%e-gz is not supported in this configuration} "
910 #else /* HAVE_LD_COMPRESS_DEBUG >= 1 */
911 #if HAVE_AS_COMPRESS_DEBUG == 0
912 /* No assembler support. Ignore silently. */
913 #define ASM_COMPRESS_DEBUG_SPEC \
915 #elif HAVE_AS_COMPRESS_DEBUG == 1
916 /* ELF gABI style. */
917 #define ASM_COMPRESS_DEBUG_SPEC \
918 " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
919 " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
920 " %{gz=zlib-gnu:}" /* Ignore silently zlib-gnu option value. */
921 #elif HAVE_AS_COMPRESS_DEBUG == 2
922 /* ELF gABI style and ZSTD. */
923 #define ASM_COMPRESS_DEBUG_SPEC \
924 " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
925 " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
926 " %{gz=zstd:" AS_COMPRESS_DEBUG_OPTION "=zstd}" \
927 " %{gz=zlib-gnu:}" /* Ignore silently zlib-gnu option value. */
929 #error Unknown value for HAVE_AS_COMPRESS_DEBUG.
931 #endif /* HAVE_LD_COMPRESS_DEBUG >= 1 */
933 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
934 to the assembler, when compiling assembly sources only. */
935 #ifndef ASM_DEBUG_SPEC
936 # if defined(HAVE_AS_GDWARF_5_DEBUG_FLAG) && defined(HAVE_AS_WORKING_DWARF_N_FLAG)
937 /* If --gdwarf-N is supported and as can handle even compiler generated
938 .debug_line with it, supply --gdwarf-N in ASM_DEBUG_OPTION_SPEC rather
939 than in ASM_DEBUG_SPEC, so that it applies to both .s and .c etc.
941 # define ASM_DEBUG_DWARF_OPTION ""
942 # elif defined(HAVE_AS_GDWARF_5_DEBUG_FLAG) && !defined(HAVE_LD_BROKEN_PE_DWARF5)
943 # define ASM_DEBUG_DWARF_OPTION "%{%:dwarf-version-gt(4):--gdwarf-5;" \
944 "%:dwarf-version-gt(3):--gdwarf-4;" \
945 "%:dwarf-version-gt(2):--gdwarf-3;" \
948 # define ASM_DEBUG_DWARF_OPTION "--gdwarf2"
950 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
951 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):" \
952 ASM_DEBUG_DWARF_OPTION "}}" ASM_MAP
955 #ifndef ASM_DEBUG_SPEC
956 # define ASM_DEBUG_SPEC ""
959 /* Define ASM_DEBUG_OPTION_SPEC to be a spec suitable for translating '-g'
960 to the assembler when compiling all sources. */
961 #ifndef ASM_DEBUG_OPTION_SPEC
962 # if defined(HAVE_AS_GDWARF_5_DEBUG_FLAG) && defined(HAVE_AS_WORKING_DWARF_N_FLAG)
963 # define ASM_DEBUG_OPTION_DWARF_OPT \
964 "%{%:dwarf-version-gt(4):--gdwarf-5 ;" \
965 "%:dwarf-version-gt(3):--gdwarf-4 ;" \
966 "%:dwarf-version-gt(2):--gdwarf-3 ;" \
968 # if defined(DWARF2_DEBUGGING_INFO)
969 # define ASM_DEBUG_OPTION_SPEC "%{g*:%{%:debug-level-gt(0):" \
970 ASM_DEBUG_OPTION_DWARF_OPT "}}"
974 #ifndef ASM_DEBUG_OPTION_SPEC
975 # define ASM_DEBUG_OPTION_SPEC ""
978 /* Here is the spec for running the linker, after compiling all files. */
980 /* This is overridable by the target in case they need to specify the
981 -lgcc and -lc order specially, yet not require them to override all
982 of LINK_COMMAND_SPEC. */
983 #ifndef LINK_GCC_C_SEQUENCE_SPEC
984 #define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}"
987 #ifndef LINK_SSP_SPEC
988 #ifdef TARGET_LIBC_PROVIDES_SSP
989 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
990 "|fstack-protector-strong|fstack-protector-explicit:}"
992 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
993 "|fstack-protector-strong|fstack-protector-explicit" \
994 ":-lssp_nonshared -lssp}"
998 #ifdef ENABLE_DEFAULT_PIE
999 #define PIE_SPEC "!no-pie"
1000 #define NO_FPIE1_SPEC "fno-pie"
1001 #define FPIE1_SPEC NO_FPIE1_SPEC ":;"
1002 #define NO_FPIE2_SPEC "fno-PIE"
1003 #define FPIE2_SPEC NO_FPIE2_SPEC ":;"
1004 #define NO_FPIE_SPEC NO_FPIE1_SPEC "|" NO_FPIE2_SPEC
1005 #define FPIE_SPEC NO_FPIE_SPEC ":;"
1006 #define NO_FPIC1_SPEC "fno-pic"
1007 #define FPIC1_SPEC NO_FPIC1_SPEC ":;"
1008 #define NO_FPIC2_SPEC "fno-PIC"
1009 #define FPIC2_SPEC NO_FPIC2_SPEC ":;"
1010 #define NO_FPIC_SPEC NO_FPIC1_SPEC "|" NO_FPIC2_SPEC
1011 #define FPIC_SPEC NO_FPIC_SPEC ":;"
1012 #define NO_FPIE1_AND_FPIC1_SPEC NO_FPIE1_SPEC "|" NO_FPIC1_SPEC
1013 #define FPIE1_OR_FPIC1_SPEC NO_FPIE1_AND_FPIC1_SPEC ":;"
1014 #define NO_FPIE2_AND_FPIC2_SPEC NO_FPIE2_SPEC "|" NO_FPIC2_SPEC
1015 #define FPIE2_OR_FPIC2_SPEC NO_FPIE2_AND_FPIC2_SPEC ":;"
1016 #define NO_FPIE_AND_FPIC_SPEC NO_FPIE_SPEC "|" NO_FPIC_SPEC
1017 #define FPIE_OR_FPIC_SPEC NO_FPIE_AND_FPIC_SPEC ":;"
1019 #define PIE_SPEC "pie"
1020 #define FPIE1_SPEC "fpie"
1021 #define NO_FPIE1_SPEC FPIE1_SPEC ":;"
1022 #define FPIE2_SPEC "fPIE"
1023 #define NO_FPIE2_SPEC FPIE2_SPEC ":;"
1024 #define FPIE_SPEC FPIE1_SPEC "|" FPIE2_SPEC
1025 #define NO_FPIE_SPEC FPIE_SPEC ":;"
1026 #define FPIC1_SPEC "fpic"
1027 #define NO_FPIC1_SPEC FPIC1_SPEC ":;"
1028 #define FPIC2_SPEC "fPIC"
1029 #define NO_FPIC2_SPEC FPIC2_SPEC ":;"
1030 #define FPIC_SPEC FPIC1_SPEC "|" FPIC2_SPEC
1031 #define NO_FPIC_SPEC FPIC_SPEC ":;"
1032 #define FPIE1_OR_FPIC1_SPEC FPIE1_SPEC "|" FPIC1_SPEC
1033 #define NO_FPIE1_AND_FPIC1_SPEC FPIE1_OR_FPIC1_SPEC ":;"
1034 #define FPIE2_OR_FPIC2_SPEC FPIE2_SPEC "|" FPIC2_SPEC
1035 #define NO_FPIE2_AND_FPIC2_SPEC FPIE1_OR_FPIC2_SPEC ":;"
1036 #define FPIE_OR_FPIC_SPEC FPIE_SPEC "|" FPIC_SPEC
1037 #define NO_FPIE_AND_FPIC_SPEC FPIE_OR_FPIC_SPEC ":;"
1040 #ifndef LINK_PIE_SPEC
1043 #define LD_PIE_SPEC "-pie"
1046 #define LD_PIE_SPEC ""
1048 #define LINK_PIE_SPEC "%{static|shared|r:;" PIE_SPEC ":" LD_PIE_SPEC "} "
1051 #ifndef LINK_BUILDID_SPEC
1052 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
1053 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
1057 #ifndef LTO_PLUGIN_SPEC
1058 #define LTO_PLUGIN_SPEC ""
1061 /* Conditional to test whether the LTO plugin is used or not.
1062 FIXME: For slim LTO we will need to enable plugin unconditionally. This
1063 still cause problems with PLUGIN_LD != LD and when plugin is built but
1064 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
1065 plugin only when LTO is enabled. We still honor explicit
1066 -fuse-linker-plugin if the linker used understands -plugin. */
1068 /* The linker has some plugin support. */
1069 #if HAVE_LTO_PLUGIN > 0
1070 /* The linker used has full plugin support, use LTO plugin by default. */
1071 #if HAVE_LTO_PLUGIN == 2
1072 #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
1073 #define PLUGIN_COND_CLOSE "}"
1075 /* The linker used has limited plugin support, use LTO plugin with explicit
1076 -fuse-linker-plugin. */
1077 #define PLUGIN_COND "fuse-linker-plugin"
1078 #define PLUGIN_COND_CLOSE ""
1080 #define LINK_PLUGIN_SPEC \
1081 "%{" PLUGIN_COND": \
1082 -plugin %(linker_plugin_file) \
1083 -plugin-opt=%(lto_wrapper) \
1084 -plugin-opt=-fresolution=%u.res \
1085 " LTO_PLUGIN_SPEC "\
1086 %{flinker-output=*:-plugin-opt=-linker-output-known} \
1087 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
1088 }" PLUGIN_COND_CLOSE
1090 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
1091 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
1092 %e-fuse-linker-plugin is not supported in this configuration}"
1095 /* Linker command line options for -fsanitize= early on the command line. */
1096 #ifndef SANITIZER_EARLY_SPEC
1097 #define SANITIZER_EARLY_SPEC "\
1098 %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
1099 %{%:sanitize(hwaddress):" LIBHWASAN_EARLY_SPEC "} \
1100 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
1101 %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}}"
1104 /* Linker command line options for -fsanitize= late on the command line. */
1105 #ifndef SANITIZER_SPEC
1106 #define SANITIZER_SPEC "\
1107 %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
1108 %{static:%ecannot specify -static with -fsanitize=address}}\
1109 %{%:sanitize(hwaddress):" LIBHWASAN_SPEC "\
1110 %{static:%ecannot specify -static with -fsanitize=hwaddress}}\
1111 %{%:sanitize(thread):" LIBTSAN_SPEC "\
1112 %{static:%ecannot specify -static with -fsanitize=thread}}\
1113 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
1114 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}}"
1117 #ifndef POST_LINK_SPEC
1118 #define POST_LINK_SPEC ""
1121 /* This is the spec to use, once the code for creating the vtable
1122 verification runtime library, libvtv.so, has been created. Currently
1123 the vtable verification runtime functions are in libstdc++, so we use
1124 the spec just below this one. */
1125 #ifndef VTABLE_VERIFICATION_SPEC
1126 #if ENABLE_VTABLE_VERIFY
1127 #define VTABLE_VERIFICATION_SPEC "\
1128 %{!nostdlib:%{!r:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
1129 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}}"
1131 #define VTABLE_VERIFICATION_SPEC "\
1132 %{fvtable-verify=none:} \
1133 %{fvtable-verify=std: \
1134 %e-fvtable-verify=std is not supported in this configuration} \
1135 %{fvtable-verify=preinit: \
1136 %e-fvtable-verify=preinit is not supported in this configuration}"
1140 /* -u* was put back because both BSD and SysV seem to support it. */
1141 /* %{static|no-pie|static-pie:} simply prevents an error message:
1142 1. If the target machine doesn't handle -static.
1143 2. If PIE isn't enabled by default.
1144 3. If the target machine doesn't handle -static-pie.
1146 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
1147 scripts which exist in user specified directories, or in standard
1149 /* We pass any -flto flags on to the linker, which is expected
1150 to understand them. In practice, this means it had better be collect2. */
1151 /* %{e*} includes -export-dynamic; see comment in common.opt. */
1152 #ifndef LINK_COMMAND_SPEC
1153 #define LINK_COMMAND_SPEC "\
1154 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
1157 "%{flto|flto=*:%<fcompare-debug*} \
1158 %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
1159 "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
1160 "%X %{o*} %{e*} %{N} %{n} %{r}\
1161 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
1162 %{static|no-pie|static-pie:} %@{L*} %(link_libgcc) " \
1163 VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o "" \
1164 %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
1165 %:include(libgomp.spec)%(link_gomp)}\
1166 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
1167 " STACK_SPLIT_SPEC "\
1168 %{fprofile-arcs|fcondition-coverage|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
1169 %{!nostdlib:%{!r:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}}\
1170 %{!nostdlib:%{!r:%{!nostartfiles:%E}}} %{T*} \n%(post_link) }}}}}}"
1173 #ifndef LINK_LIBGCC_SPEC
1174 /* Generate -L options for startfile prefix list. */
1175 # define LINK_LIBGCC_SPEC "%D"
1178 #ifndef STARTFILE_PREFIX_SPEC
1179 # define STARTFILE_PREFIX_SPEC ""
1182 #ifndef SYSROOT_SPEC
1183 # define SYSROOT_SPEC "--sysroot=%R"
1186 #ifndef SYSROOT_SUFFIX_SPEC
1187 # define SYSROOT_SUFFIX_SPEC ""
1190 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
1191 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
1194 #ifndef RUNPATH_OPTION
1195 # define RUNPATH_OPTION "-rpath"
1198 static const char *asm_debug
= ASM_DEBUG_SPEC
;
1199 static const char *asm_debug_option
= ASM_DEBUG_OPTION_SPEC
;
1200 static const char *cpp_spec
= CPP_SPEC
;
1201 static const char *cc1_spec
= CC1_SPEC OS_CC1_SPEC
;
1202 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
1203 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
1204 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
1205 static const char *asm_spec
= ASM_SPEC
;
1206 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
1207 static const char *link_spec
= LINK_SPEC
;
1208 static const char *lib_spec
= LIB_SPEC
;
1209 static const char *link_gomp_spec
= "";
1210 static const char *libgcc_spec
= LIBGCC_SPEC
;
1211 static const char *endfile_spec
= ENDFILE_SPEC
;
1212 static const char *startfile_spec
= STARTFILE_SPEC
;
1213 static const char *linker_name_spec
= LINKER_NAME
;
1214 static const char *linker_plugin_file_spec
= "";
1215 static const char *lto_wrapper_spec
= "";
1216 static const char *lto_gcc_spec
= "";
1217 static const char *post_link_spec
= POST_LINK_SPEC
;
1218 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
1219 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
1220 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
1221 static const char *sysroot_spec
= SYSROOT_SPEC
;
1222 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
1223 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
1224 static const char *self_spec
= "";
1226 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
1227 There should be no need to override these in target dependent files,
1228 but we need to copy them to the specs file so that newer versions
1229 of the GCC driver can correctly drive older tool chains with the
1230 appropriate -B options. */
1232 /* When cpplib handles traditional preprocessing, get rid of this, and
1233 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
1234 that we default the front end language better. */
1235 static const char *trad_capable_cpp
=
1236 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
1238 /* We don't wrap .d files in %W{} since a missing .d file, and
1239 therefore no dependency entry, confuses make into thinking a .o
1240 file that happens to exist is up-to-date. */
1241 static const char *cpp_unique_options
=
1242 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %@{I*&F*} %{P} %I\
1243 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
1244 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
1245 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
1246 %{Mmodules} %{Mno-modules}\
1247 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
1248 %{remap} %{%:debug-level-gt(2):-dD}\
1249 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1250 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
1252 %{fdeps-format=*:%{!fdeps-file=*:-fdeps-file=%:join(%{!o:%b.ddi}%{o*:%.ddi%*})}}\
1253 %{fdeps-format=*:%{!fdeps-target=*:-fdeps-target=%:join(%{!o:%b.o}%{o*:%.o%*})}}";
1255 /* This contains cpp options which are common with cc1_options and are passed
1256 only when preprocessing only to avoid duplication. We pass the cc1 spec
1257 options to the preprocessor so that it the cc1 spec may manipulate
1258 options used to set target flags. Those special target flags settings may
1259 in turn cause preprocessor symbols to be defined specially. */
1260 static const char *cpp_options
=
1261 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
1262 %{f*} %{g*:%{%:debug-level-gt(0):%{g*}\
1263 %{!fno-working-directory:-fworking-directory}}} %{O*}\
1264 %{undef} %{save-temps*:-fpch-preprocess}";
1266 /* Pass -d* flags, possibly modifying -dumpdir, -dumpbase et al.
1268 Make it easy for a language to override the argument for the
1269 %:dumps specs function call. */
1270 #define DUMPS_OPTIONS(EXTS) \
1271 "%<dumpdir %<dumpbase %<dumpbase-ext %{d*} %:dumps(" EXTS ")"
1273 /* This contains cpp options which are not passed when the preprocessor
1274 output will be used by another program. */
1275 static const char *cpp_debug_options
= DUMPS_OPTIONS ("");
1277 /* NB: This is shared amongst all front-ends, except for Ada. */
1278 static const char *cc1_options
=
1279 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
1280 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1281 %1 %{!Q:-quiet} %(cpp_debug_options) %{m*} %{aux-info*}\
1282 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
1283 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
1284 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
1285 %{-target-help:--target-help}\
1286 %{-version:--version}\
1287 %{-help=*:--help=%*}\
1288 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %w%b.s}}}\
1289 %{fsyntax-only:-o %j} %{-param*}\
1290 %{coverage:-fprofile-arcs -ftest-coverage}\
1291 %{fprofile-arcs|fcondition-coverage|fprofile-generate*|coverage:\
1292 %{!fprofile-update=single:\
1293 %{pthread:-fprofile-update=prefer-atomic}}}";
1295 static const char *asm_options
=
1296 "%{-target-help:%:print-asm-header()} "
1298 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
1299 to the assembler equivalents. */
1300 "%{v} %{w:-W} %{I*} "
1302 "%(asm_debug_option)"
1303 ASM_COMPRESS_DEBUG_SPEC
1304 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
1306 static const char *invoke_as
=
1307 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1309 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1310 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
1314 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1315 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
1319 /* Some compilers have limits on line lengths, and the multilib_select
1320 and/or multilib_matches strings can be very long, so we build them at
1322 static struct obstack multilib_obstack
;
1323 static const char *multilib_select
;
1324 static const char *multilib_matches
;
1325 static const char *multilib_defaults
;
1326 static const char *multilib_exclusions
;
1327 static const char *multilib_reuse
;
1329 /* Check whether a particular argument is a default argument. */
1331 #ifndef MULTILIB_DEFAULTS
1332 #define MULTILIB_DEFAULTS { "" }
1335 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
1337 #ifndef DRIVER_SELF_SPECS
1338 #define DRIVER_SELF_SPECS ""
1341 /* Linking to libgomp implies pthreads. This is particularly important
1342 for targets that use different start files and suchlike. */
1343 #ifndef GOMP_SELF_SPECS
1344 #define GOMP_SELF_SPECS \
1345 "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \
1349 /* Likewise for -fgnu-tm. */
1350 #ifndef GTM_SELF_SPECS
1351 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1354 static const char *const driver_self_specs
[] = {
1355 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1356 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
,
1357 /* This discards -fmultiflags at the end of self specs processing in the
1358 driver, so that it is effectively Ignored, without actually marking it as
1359 Ignored, which would get it discarded before self specs could remap it. */
1363 #ifndef OPTION_DEFAULT_SPECS
1364 #define OPTION_DEFAULT_SPECS { "", "" }
1373 static const struct default_spec
1374 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1378 struct user_specs
*next
;
1379 const char *filename
;
1382 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1385 /* Record the mapping from file suffixes for compilation specs. */
1389 const char *suffix
; /* Use this compiler for input files
1390 whose names end in this suffix. */
1392 const char *spec
; /* To use this compiler, run this spec. */
1394 const char *cpp_spec
; /* If non-NULL, substitute this spec
1395 for `%C', rather than the usual
1397 int combinable
; /* If nonzero, compiler can deal with
1398 multiple source files at once (IMA). */
1399 int needs_preprocessing
; /* If nonzero, source files need to
1400 be run through a preprocessor. */
1403 /* Pointer to a vector of `struct compiler' that gives the spec for
1404 compiling a file, based on its suffix.
1405 A file that does not end in any of these suffixes will be passed
1406 unchanged to the loader and nothing else will be done to it.
1408 An entry containing two 0s is used to terminate the vector.
1410 If multiple entries match a file, the last matching one is used. */
1412 static struct compiler
*compilers
;
1414 /* Number of entries in `compilers', not counting the null terminator. */
1416 static int n_compilers
;
1418 /* The default list of file name suffixes and their compilation specs. */
1420 static const struct compiler default_compilers
[] =
1422 /* Add lists of suffixes of known languages here. If those languages
1423 were not present when we built the driver, we will hit these copies
1424 and be given a more meaningful error than "file not used since
1425 linking is not done". */
1426 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1427 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1428 {".mii", "#Objective-C++", 0, 0, 0},
1429 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1430 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1431 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1432 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1433 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1434 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1435 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1436 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1437 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1438 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1439 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1440 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1441 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1442 {".r", "#Ratfor", 0, 0, 0},
1443 {".go", "#Go", 0, 1, 0},
1444 {".d", "#D", 0, 1, 0}, {".dd", "#D", 0, 1, 0}, {".di", "#D", 0, 1, 0},
1445 {".mod", "#Modula-2", 0, 0, 0}, {".m2i", "#Modula-2", 0, 0, 0},
1446 /* Next come the entries for C. */
1447 {".c", "@c", 0, 0, 1},
1449 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1450 external preprocessor if -save-temps is given. */
1451 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1454 %eGNU C no longer supports -traditional without -E}\
1455 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1456 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1457 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1459 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1460 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1461 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1463 "%{!E:%e-E or -x required when input is from standard input}\
1464 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1465 {".h", "@c-header", 0, 0, 0},
1467 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1468 external preprocessor if -save-temps is given. */
1469 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1471 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1472 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1473 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1475 %{!fsyntax-only:%{!S:-o %g.s} \
1476 %{!fdump-ada-spec*:%{!o*:--output-pch %w%i.gch}\
1477 %W{o*:--output-pch %w%*}}%{!S:%V}}}\
1478 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1479 cc1 %(cpp_unique_options) %(cc1_options)\
1480 %{!fsyntax-only:%{!S:-o %g.s} \
1481 %{!fdump-ada-spec*:%{!o*:--output-pch %w%i.gch}\
1482 %W{o*:--output-pch %w%*}}%{!S:%V}}}}}}}}", 0, 0, 0},
1483 {".i", "@cpp-output", 0, 0, 0},
1485 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1486 {".s", "@assembler", 0, 0, 0},
1488 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1489 {".sx", "@assembler-with-cpp", 0, 0, 0},
1490 {".S", "@assembler-with-cpp", 0, 0, 0},
1491 {"@assembler-with-cpp",
1492 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1493 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1494 %{E|M|MM:%(cpp_debug_options)}\
1495 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1496 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1498 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1499 %{E|M|MM:%(cpp_debug_options)}\
1500 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1501 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1506 /* Mark end of table. */
1510 /* Number of elements in default_compilers, not counting the terminator. */
1512 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1514 typedef char *char_p
; /* For DEF_VEC_P. */
1516 /* A vector of options to give to the linker.
1517 These options are accumulated by %x,
1518 and substituted into the linker command with %X. */
1519 static vec
<char_p
> linker_options
;
1521 /* A vector of options to give to the assembler.
1522 These options are accumulated by -Wa,
1523 and substituted into the assembler command with %Y. */
1524 static vec
<char_p
> assembler_options
;
1526 /* A vector of options to give to the preprocessor.
1527 These options are accumulated by -Wp,
1528 and substituted into the preprocessor command with %Z. */
1529 static vec
<char_p
> preprocessor_options
;
1532 skip_whitespace (char *p
)
1536 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1537 be considered whitespace. */
1538 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1540 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1554 /* Structures to keep track of prefixes to try when looking for files. */
1558 const char *prefix
; /* String to prepend to the path. */
1559 struct prefix_list
*next
; /* Next in linked list. */
1560 int require_machine_suffix
; /* Don't use without machine_suffix. */
1561 /* 2 means try both machine_suffix and just_machine_suffix. */
1562 int priority
; /* Sort key - priority within list. */
1563 int os_multilib
; /* 1 if OS multilib scheme should be used,
1564 0 for GCC multilib scheme. */
1569 struct prefix_list
*plist
; /* List of prefixes to try */
1570 int max_len
; /* Max length of a prefix in PLIST */
1571 const char *name
; /* Name of this list (used in config stuff) */
1574 /* List of prefixes to try when looking for executables. */
1576 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1578 /* List of prefixes to try when looking for startup (crt0) files. */
1580 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1582 /* List of prefixes to try when looking for include files. */
1584 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1586 /* Suffix to attach to directories searched for commands.
1587 This looks like `MACHINE/VERSION/'. */
1589 static const char *machine_suffix
= 0;
1591 /* Suffix to attach to directories searched for commands.
1592 This is just `MACHINE/'. */
1594 static const char *just_machine_suffix
= 0;
1596 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1598 static const char *gcc_exec_prefix
;
1600 /* Adjusted value of standard_libexec_prefix. */
1602 static const char *gcc_libexec_prefix
;
1604 /* Default prefixes to attach to command names. */
1606 #ifndef STANDARD_STARTFILE_PREFIX_1
1607 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1609 #ifndef STANDARD_STARTFILE_PREFIX_2
1610 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1613 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1614 #undef MD_EXEC_PREFIX
1615 #undef MD_STARTFILE_PREFIX
1616 #undef MD_STARTFILE_PREFIX_1
1619 /* If no prefixes defined, use the null string, which will disable them. */
1620 #ifndef MD_EXEC_PREFIX
1621 #define MD_EXEC_PREFIX ""
1623 #ifndef MD_STARTFILE_PREFIX
1624 #define MD_STARTFILE_PREFIX ""
1626 #ifndef MD_STARTFILE_PREFIX_1
1627 #define MD_STARTFILE_PREFIX_1 ""
1630 /* These directories are locations set at configure-time based on the
1631 --prefix option provided to configure. Their initializers are
1632 defined in Makefile.in. These paths are not *directly* used when
1633 gcc_exec_prefix is set because, in that case, we know where the
1634 compiler has been installed, and use paths relative to that
1635 location instead. */
1636 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1637 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1638 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1639 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1641 /* For native compilers, these are well-known paths containing
1642 components that may be provided by the system. For cross
1643 compilers, these paths are not used. */
1644 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1645 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1646 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1647 static const char *const standard_startfile_prefix_1
1648 = STANDARD_STARTFILE_PREFIX_1
;
1649 static const char *const standard_startfile_prefix_2
1650 = STANDARD_STARTFILE_PREFIX_2
;
1652 /* A relative path to be used in finding the location of tools
1653 relative to the driver. */
1654 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1656 /* A prefix to be used when this is an accelerator compiler. */
1657 static const char *const accel_dir_suffix
= ACCEL_DIR_SUFFIX
;
1659 /* Subdirectory to use for locating libraries. Set by
1660 set_multilib_dir based on the compilation options. */
1662 static const char *multilib_dir
;
1664 /* Subdirectory to use for locating libraries in OS conventions. Set by
1665 set_multilib_dir based on the compilation options. */
1667 static const char *multilib_os_dir
;
1669 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1670 set_multilib_dir based on the compilation options. */
1672 static const char *multiarch_dir
;
1674 /* Structure to keep track of the specs that have been defined so far.
1675 These are accessed using %(specname) in a compiler or link
1680 /* The following 2 fields must be first */
1681 /* to allow EXTRA_SPECS to be initialized */
1682 const char *name
; /* name of the spec. */
1683 const char *ptr
; /* available ptr if no static pointer */
1685 /* The following fields are not initialized */
1686 /* by EXTRA_SPECS */
1687 const char **ptr_spec
; /* pointer to the spec itself. */
1688 struct spec_list
*next
; /* Next spec in linked list. */
1689 int name_len
; /* length of the name */
1690 bool user_p
; /* whether string come from file spec. */
1691 bool alloc_p
; /* whether string was allocated */
1692 const char *default_ptr
; /* The default value of *ptr_spec. */
1695 #define INIT_STATIC_SPEC(NAME,PTR) \
1696 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false, \
1699 /* List of statically defined specs. */
1700 static struct spec_list static_specs
[] =
1702 INIT_STATIC_SPEC ("asm", &asm_spec
),
1703 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1704 INIT_STATIC_SPEC ("asm_debug_option", &asm_debug_option
),
1705 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1706 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1707 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1708 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1709 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1710 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1711 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1712 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1713 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1714 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1715 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1716 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1717 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1718 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1719 INIT_STATIC_SPEC ("link", &link_spec
),
1720 INIT_STATIC_SPEC ("lib", &lib_spec
),
1721 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1722 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1723 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1724 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1725 INIT_STATIC_SPEC ("version", &compiler_version
),
1726 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1727 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1728 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1729 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1730 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1731 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1732 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1733 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1734 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1735 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1736 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1737 INIT_STATIC_SPEC ("post_link", &post_link_spec
),
1738 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1739 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1740 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1741 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1742 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1743 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1744 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1745 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1746 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1749 #ifdef EXTRA_SPECS /* additional specs needed */
1750 /* Structure to keep track of just the first two args of a spec_list.
1751 That is all that the EXTRA_SPECS macro gives us. */
1754 const char *const name
;
1755 const char *const ptr
;
1758 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1759 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1762 /* List of dynamically allocates specs that have been defined so far. */
1764 static struct spec_list
*specs
= (struct spec_list
*) 0;
1766 /* List of static spec functions. */
1768 static const struct spec_function static_spec_functions
[] =
1770 { "getenv", getenv_spec_function
},
1771 { "if-exists", if_exists_spec_function
},
1772 { "if-exists-else", if_exists_else_spec_function
},
1773 { "if-exists-then-else", if_exists_then_else_spec_function
},
1774 { "sanitize", sanitize_spec_function
},
1775 { "replace-outfile", replace_outfile_spec_function
},
1776 { "remove-outfile", remove_outfile_spec_function
},
1777 { "version-compare", version_compare_spec_function
},
1778 { "include", include_spec_function
},
1779 { "find-file", find_file_spec_function
},
1780 { "find-plugindir", find_plugindir_spec_function
},
1781 { "print-asm-header", print_asm_header_spec_function
},
1782 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1783 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1784 { "pass-through-libs", pass_through_libs_spec_func
},
1785 { "dumps", dumps_spec_func
},
1786 { "gt", greater_than_spec_func
},
1787 { "debug-level-gt", debug_level_greater_than_spec_func
},
1788 { "dwarf-version-gt", dwarf_version_greater_than_spec_func
},
1789 { "fortran-preinclude-file", find_fortran_preinclude_file
},
1790 { "join", join_spec_func
},
1791 #ifdef EXTRA_SPEC_FUNCTIONS
1792 EXTRA_SPEC_FUNCTIONS
1797 static int processing_spec_function
;
1799 /* Add appropriate libgcc specs to OBSTACK, taking into account
1800 various permutations of -shared-libgcc, -shared, and such. */
1802 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1804 #ifndef USE_LD_AS_NEEDED
1805 #define USE_LD_AS_NEEDED 0
1809 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1810 const char *static_name
, const char *eh_name
)
1814 #if USE_LD_AS_NEEDED
1815 buf
= concat ("%{static|static-libgcc|static-pie:", static_name
, " ", eh_name
, "}"
1816 "%{!static:%{!static-libgcc:%{!static-pie:"
1817 "%{!shared-libgcc:",
1818 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1819 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1822 shared_name
, "%{!shared: ", static_name
, "}"
1825 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1826 "%{!static:%{!static-libgcc:"
1828 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1829 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1833 "%{shared-libgcc:", shared_name
, "}"
1834 "%{!shared-libgcc:", static_name
, "}"
1837 "%{shared:", shared_name
, "}"
1842 obstack_grow (obstack
, buf
, strlen (buf
));
1845 #endif /* ENABLE_SHARED_LIBGCC */
1847 /* Initialize the specs lookup routines. */
1852 struct spec_list
*next
= (struct spec_list
*) 0;
1853 struct spec_list
*sl
= (struct spec_list
*) 0;
1857 return; /* Already initialized. */
1860 fnotice (stderr
, "Using built-in specs.\n");
1863 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1865 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1867 sl
= &extra_specs
[i
];
1868 sl
->name
= extra_specs_1
[i
].name
;
1869 sl
->ptr
= extra_specs_1
[i
].ptr
;
1871 sl
->name_len
= strlen (sl
->name
);
1872 sl
->ptr_spec
= &sl
->ptr
;
1873 gcc_assert (sl
->ptr_spec
!= NULL
);
1874 sl
->default_ptr
= sl
->ptr
;
1879 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1881 sl
= &static_specs
[i
];
1886 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1887 /* ??? If neither -shared-libgcc nor --static-libgcc was
1888 seen, then we should be making an educated guess. Some proposed
1889 heuristics for ELF include:
1891 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1892 program will be doing dynamic loading, which will likely
1893 need the shared libgcc.
1895 (2) If "-ldl", then it's also a fair bet that we're doing
1898 (3) For each ET_DYN we're linking against (either through -lfoo
1899 or /some/path/foo.so), check to see whether it or one of
1900 its dependencies depends on a shared libgcc.
1904 If the runtime is fixed to look for program headers instead
1905 of calling __register_frame_info at all, for each object,
1906 use the shared libgcc if any EH symbol referenced.
1908 If crtstuff is fixed to not invoke __register_frame_info
1909 automatically, for each object, use the shared libgcc if
1910 any non-empty unwind section found.
1912 Doing any of this probably requires invoking an external program to
1913 do the actual object file scanning. */
1915 const char *p
= libgcc_spec
;
1918 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1919 when given the proper command line arguments. */
1922 if (in_sep
&& *p
== '-' && startswith (p
, "-lgcc"))
1924 init_gcc_specs (&obstack
,
1926 #ifdef USE_LIBUNWIND_EXCEPTIONS
1932 #ifdef USE_LIBUNWIND_EXCEPTIONS
1933 # ifdef HAVE_LD_STATIC_DYNAMIC
1934 " %{!static:%{!static-pie:" LD_STATIC_OPTION
"}} -lunwind"
1935 " %{!static:%{!static-pie:" LD_DYNAMIC_OPTION
"}}"
1945 else if (in_sep
&& *p
== 'l' && startswith (p
, "libgcc.a%s"))
1947 /* Ug. We don't know shared library extensions. Hope that
1948 systems that use this form don't do shared libraries. */
1949 init_gcc_specs (&obstack
,
1953 #ifdef USE_LIBUNWIND_EXCEPTIONS
1962 obstack_1grow (&obstack
, *p
);
1963 in_sep
= (*p
== ' ');
1968 obstack_1grow (&obstack
, '\0');
1969 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1972 #ifdef USE_AS_TRADITIONAL_FORMAT
1973 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1975 static const char tf
[] = "--traditional-format ";
1976 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1977 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1978 asm_spec
= XOBFINISH (&obstack
, const char *);
1982 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1983 defined LINKER_HASH_STYLE
1984 # ifdef LINK_BUILDID_SPEC
1985 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1986 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1988 # ifdef LINK_EH_SPEC
1989 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1990 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1992 # ifdef LINKER_HASH_STYLE
1993 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1996 static const char hash_style
[] = "--hash-style=";
1997 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1998 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1999 obstack_1grow (&obstack
, ' ');
2002 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
2003 link_spec
= XOBFINISH (&obstack
, const char *);
2009 /* Update the entry for SPEC in the static_specs table to point to VALUE,
2010 ensuring that we free the previous value if necessary. Set alloc_p for the
2011 entry to ALLOC_P: this determines whether we take ownership of VALUE (i.e.
2012 whether we need to free it later on). */
2014 set_static_spec (const char **spec
, const char *value
, bool alloc_p
)
2016 struct spec_list
*sl
= NULL
;
2018 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
2020 if (static_specs
[i
].ptr_spec
== spec
)
2022 sl
= static_specs
+ i
;
2031 const char *old
= *spec
;
2032 free (const_cast <char *> (old
));
2036 sl
->alloc_p
= alloc_p
;
2039 /* Update a static spec to a new string, taking ownership of that
2041 static void set_static_spec_owned (const char **spec
, const char *val
)
2043 return set_static_spec (spec
, val
, true);
2046 /* Update a static spec to point to a new value, but don't take
2047 ownership of (i.e. don't free) that string. */
2048 static void set_static_spec_shared (const char **spec
, const char *val
)
2050 return set_static_spec (spec
, val
, false);
2054 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
2055 removed; If the spec starts with a + then SPEC is added to the end of the
2059 set_spec (const char *name
, const char *spec
, bool user_p
)
2061 struct spec_list
*sl
;
2062 const char *old_spec
;
2063 int name_len
= strlen (name
);
2066 /* If this is the first call, initialize the statically allocated specs. */
2069 struct spec_list
*next
= (struct spec_list
*) 0;
2070 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
2072 sl
= &static_specs
[i
];
2079 /* See if the spec already exists. */
2080 for (sl
= specs
; sl
; sl
= sl
->next
)
2081 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
2086 /* Not found - make it. */
2087 sl
= XNEW (struct spec_list
);
2088 sl
->name
= xstrdup (name
);
2089 sl
->name_len
= name_len
;
2090 sl
->ptr_spec
= &sl
->ptr
;
2092 *(sl
->ptr_spec
) = "";
2094 sl
->default_ptr
= NULL
;
2098 old_spec
= *(sl
->ptr_spec
);
2099 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
2100 ? concat (old_spec
, spec
+ 1, NULL
)
2105 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
2108 /* Free the old spec. */
2109 if (old_spec
&& sl
->alloc_p
)
2110 free (CONST_CAST (char *, old_spec
));
2112 sl
->user_p
= user_p
;
2116 /* Accumulate a command (program name and args), and run it. */
2118 typedef const char *const_char_p
; /* For DEF_VEC_P. */
2120 /* Vector of pointers to arguments in the current line of specifications. */
2121 static vec
<const_char_p
> argbuf
;
2123 /* Likewise, but for the current @file. */
2124 static vec
<const_char_p
> at_file_argbuf
;
2126 /* Whether an @file is currently open. */
2127 static bool in_at_file
= false;
2129 /* Were the options -c, -S or -E passed. */
2130 static int have_c
= 0;
2132 /* Was the option -o passed. */
2133 static int have_o
= 0;
2135 /* Was the option -E passed. */
2136 static int have_E
= 0;
2138 /* Pointer to output file name passed in with -o. */
2139 static const char *output_file
= 0;
2141 /* Pointer to input file name passed in with -truncate.
2142 This file should be truncated after linking. */
2143 static const char *totruncate_file
= 0;
2145 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
2146 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2149 static struct temp_name
{
2150 const char *suffix
; /* suffix associated with the code. */
2151 int length
; /* strlen (suffix). */
2152 int unique
; /* Indicates whether %g or %u/%U was used. */
2153 const char *filename
; /* associated filename. */
2154 int filename_length
; /* strlen (filename). */
2155 struct temp_name
*next
;
2158 /* Number of commands executed so far. */
2160 static int execution_count
;
2162 /* Number of commands that exited with a signal. */
2164 static int signal_count
;
2166 /* Allocate the argument vector. */
2172 at_file_argbuf
.create (10);
2175 /* Clear out the vector of arguments (after a command is executed). */
2180 argbuf
.truncate (0);
2181 at_file_argbuf
.truncate (0);
2184 /* Add one argument to the vector at the end.
2185 This is done when a space is seen or at the end of the line.
2186 If DELETE_ALWAYS is nonzero, the arg is a filename
2187 and the file should be deleted eventually.
2188 If DELETE_FAILURE is nonzero, the arg is a filename
2189 and the file should be deleted if this compilation fails. */
2192 store_arg (const char *arg
, int delete_always
, int delete_failure
)
2195 at_file_argbuf
.safe_push (arg
);
2197 argbuf
.safe_push (arg
);
2199 if (delete_always
|| delete_failure
)
2202 /* If the temporary file we should delete is specified as
2203 part of a joined argument extract the filename. */
2205 && (p
= strrchr (arg
, '=')))
2207 record_temp_file (arg
, delete_always
, delete_failure
);
2211 /* Open a temporary @file into which subsequent arguments will be stored. */
2217 fatal_error (input_location
, "cannot open nested response file");
2222 /* Create a temporary @file name. */
2224 static char *make_at_file (void)
2226 static int fileno
= 0;
2228 const char *base
, *ext
;
2230 if (!save_temps_flag
)
2231 return make_temp_file ("");
2234 if (!(base
&& *base
))
2236 if (!(base
&& *base
))
2239 sprintf (filename
, ".args.%d", fileno
++);
2242 if (base
== dumpdir
&& dumpdir_trailing_dash_added
)
2245 return concat (base
, ext
, NULL
);
2248 /* Close the temporary @file and add @file to the argument list. */
2251 close_at_file (void)
2254 fatal_error (input_location
, "cannot close nonexistent response file");
2258 const unsigned int n_args
= at_file_argbuf
.length ();
2262 char **argv
= XALLOCAVEC (char *, n_args
+ 1);
2263 char *temp_file
= make_at_file ();
2264 char *at_argument
= concat ("@", temp_file
, NULL
);
2265 FILE *f
= fopen (temp_file
, "w");
2269 /* Copy the strings over. */
2270 for (i
= 0; i
< n_args
; i
++)
2271 argv
[i
] = CONST_CAST (char *, at_file_argbuf
[i
]);
2274 at_file_argbuf
.truncate (0);
2277 fatal_error (input_location
, "could not open temporary response file %s",
2280 status
= writeargv (argv
, f
);
2283 fatal_error (input_location
,
2284 "could not write to temporary response file %s",
2287 status
= fclose (f
);
2290 fatal_error (input_location
, "could not close temporary response file %s",
2293 store_arg (at_argument
, 0, 0);
2295 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
2298 /* Load specs from a file name named FILENAME, replacing occurrences of
2299 various different types of line-endings, \r\n, \n\r and just \r, with
2303 load_specs (const char *filename
)
2307 struct stat statbuf
;
2314 fnotice (stderr
, "Reading specs from %s\n", filename
);
2316 /* Open and stat the file. */
2317 desc
= open (filename
, O_RDONLY
, 0);
2321 /* This leaves DESC open, but the OS will save us. */
2322 fatal_error (input_location
, "cannot read spec file %qs: %m", filename
);
2325 if (stat (filename
, &statbuf
) < 0)
2328 /* Read contents of file into BUFFER. */
2329 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2330 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2333 buffer
[readlen
] = 0;
2336 specs
= XNEWVEC (char, readlen
+ 1);
2338 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2344 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2346 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2360 /* Read compilation specs from a file named FILENAME,
2361 replacing the default ones.
2363 A suffix which starts with `*' is a definition for
2364 one of the machine-specific sub-specs. The "suffix" should be
2365 *asm, *cc1, *cpp, *link, *startfile, etc.
2366 The corresponding spec is stored in asm_spec, etc.,
2367 rather than in the `compilers' vector.
2369 Anything invalid in the file is a fatal error. */
2372 read_specs (const char *filename
, bool main_p
, bool user_p
)
2377 buffer
= load_specs (filename
);
2379 /* Scan BUFFER for specs, putting them in the vector. */
2385 char *in
, *out
, *p1
, *p2
, *p3
;
2387 /* Advance P in BUFFER to the next nonblank nocomment line. */
2388 p
= skip_whitespace (p
);
2392 /* Is this a special command that starts with '%'? */
2393 /* Don't allow this for the main specs file, since it would
2394 encourage people to overwrite it. */
2395 if (*p
== '%' && !main_p
)
2398 while (*p
&& *p
!= '\n')
2404 if (startswith (p1
, "%include")
2405 && (p1
[sizeof "%include" - 1] == ' '
2406 || p1
[sizeof "%include" - 1] == '\t'))
2410 p1
+= sizeof ("%include");
2411 while (*p1
== ' ' || *p1
== '\t')
2414 if (*p1
++ != '<' || p
[-2] != '>')
2415 fatal_error (input_location
,
2416 "specs %%include syntax malformed after "
2417 "%td characters", p1
- buffer
+ 1);
2420 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2421 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
2424 else if (startswith (p1
, "%include_noerr")
2425 && (p1
[sizeof "%include_noerr" - 1] == ' '
2426 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2430 p1
+= sizeof "%include_noerr";
2431 while (*p1
== ' ' || *p1
== '\t')
2434 if (*p1
++ != '<' || p
[-2] != '>')
2435 fatal_error (input_location
,
2436 "specs %%include syntax malformed after "
2437 "%td characters", p1
- buffer
+ 1);
2440 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2442 read_specs (new_filename
, false, user_p
);
2443 else if (verbose_flag
)
2444 fnotice (stderr
, "could not find specs file %s\n", p1
);
2447 else if (startswith (p1
, "%rename")
2448 && (p1
[sizeof "%rename" - 1] == ' '
2449 || p1
[sizeof "%rename" - 1] == '\t'))
2452 struct spec_list
*sl
;
2453 struct spec_list
*newsl
;
2455 /* Get original name. */
2456 p1
+= sizeof "%rename";
2457 while (*p1
== ' ' || *p1
== '\t')
2460 if (! ISALPHA ((unsigned char) *p1
))
2461 fatal_error (input_location
,
2462 "specs %%rename syntax malformed after "
2463 "%td characters", p1
- buffer
);
2466 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2469 if (*p2
!= ' ' && *p2
!= '\t')
2470 fatal_error (input_location
,
2471 "specs %%rename syntax malformed after "
2472 "%td characters", p2
- buffer
);
2476 while (*p2
== ' ' || *p2
== '\t')
2479 if (! ISALPHA ((unsigned char) *p2
))
2480 fatal_error (input_location
,
2481 "specs %%rename syntax malformed after "
2482 "%td characters", p2
- buffer
);
2484 /* Get new spec name. */
2486 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2490 fatal_error (input_location
,
2491 "specs %%rename syntax malformed after "
2492 "%td characters", p3
- buffer
);
2495 for (sl
= specs
; sl
; sl
= sl
->next
)
2496 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2500 fatal_error (input_location
,
2501 "specs %s spec was not found to be renamed", p1
);
2503 if (strcmp (p1
, p2
) == 0)
2506 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2507 if (strcmp (newsl
->name
, p2
) == 0)
2508 fatal_error (input_location
,
2509 "%s: attempt to rename spec %qs to "
2510 "already defined spec %qs",
2515 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
2517 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2521 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2523 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2525 *(sl
->ptr_spec
) = "";
2530 fatal_error (input_location
,
2531 "specs unknown %% command after %td characters",
2535 /* Find the colon that should end the suffix. */
2537 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2540 /* The colon shouldn't be missing. */
2542 fatal_error (input_location
,
2543 "specs file malformed after %td characters",
2546 /* Skip back over trailing whitespace. */
2548 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2551 /* Copy the suffix to a string. */
2552 suffix
= save_string (p
, p2
- p
);
2553 /* Find the next line. */
2554 p
= skip_whitespace (p1
+ 1);
2556 fatal_error (input_location
,
2557 "specs file malformed after %td characters",
2561 /* Find next blank line or end of string. */
2562 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2565 /* Specs end at the blank line and do not include the newline. */
2566 spec
= save_string (p
, p1
- p
);
2569 /* Delete backslash-newline sequences from the spec. */
2574 if (in
[0] == '\\' && in
[1] == '\n')
2576 else if (in
[0] == '#')
2577 while (*in
&& *in
!= '\n')
2585 if (suffix
[0] == '*')
2587 if (! strcmp (suffix
, "*link_command"))
2588 link_command_spec
= spec
;
2591 set_spec (suffix
+ 1, spec
, user_p
);
2597 /* Add this pair to the vector. */
2599 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2601 compilers
[n_compilers
].suffix
= suffix
;
2602 compilers
[n_compilers
].spec
= spec
;
2604 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2608 link_command_spec
= spec
;
2611 if (link_command_spec
== 0)
2612 fatal_error (input_location
, "spec file has no spec for linking");
2614 XDELETEVEC (buffer
);
2617 /* Record the names of temporary files we tell compilers to write,
2618 and delete them at the end of the run. */
2620 /* This is the common prefix we use to make temp file names.
2621 It is chosen once for each run of this program.
2622 It is substituted into a spec by %g or %j.
2623 Thus, all temp file names contain this prefix.
2624 In practice, all temp file names start with this prefix.
2626 This prefix comes from the envvar TMPDIR if it is defined;
2627 otherwise, from the P_tmpdir macro if that is defined;
2628 otherwise, in /usr/tmp or /tmp;
2629 or finally the current directory if all else fails. */
2631 static const char *temp_filename
;
2633 /* Length of the prefix. */
2635 static int temp_filename_length
;
2637 /* Define the list of temporary files to delete. */
2642 struct temp_file
*next
;
2645 /* Queue of files to delete on success or failure of compilation. */
2646 static struct temp_file
*always_delete_queue
;
2647 /* Queue of files to delete on failure of compilation. */
2648 static struct temp_file
*failure_delete_queue
;
2650 /* Record FILENAME as a file to be deleted automatically.
2651 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2652 otherwise delete it in any case.
2653 FAIL_DELETE nonzero means delete it if a compilation step fails;
2654 otherwise delete it in any case. */
2657 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2659 char *const name
= xstrdup (filename
);
2663 struct temp_file
*temp
;
2664 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2665 if (! filename_cmp (name
, temp
->name
))
2671 temp
= XNEW (struct temp_file
);
2672 temp
->next
= always_delete_queue
;
2674 always_delete_queue
= temp
;
2681 struct temp_file
*temp
;
2682 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2683 if (! filename_cmp (name
, temp
->name
))
2689 temp
= XNEW (struct temp_file
);
2690 temp
->next
= failure_delete_queue
;
2692 failure_delete_queue
= temp
;
2698 /* Delete all the temporary files whose names we previously recorded. */
2700 #ifndef DELETE_IF_ORDINARY
2701 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2704 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2705 if (unlink (NAME) < 0) \
2707 error ("%s: %m", (NAME)); \
2712 delete_if_ordinary (const char *name
)
2718 printf ("Delete %s? (y or n) ", name
);
2722 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2725 if (i
== 'y' || i
== 'Y')
2727 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2731 delete_temp_files (void)
2733 struct temp_file
*temp
;
2735 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2736 delete_if_ordinary (temp
->name
);
2737 always_delete_queue
= 0;
2740 /* Delete all the files to be deleted on error. */
2743 delete_failure_queue (void)
2745 struct temp_file
*temp
;
2747 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2748 delete_if_ordinary (temp
->name
);
2752 clear_failure_queue (void)
2754 failure_delete_queue
= 0;
2757 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2759 If DO_MULTI is true iterate over the paths twice, first with multilib
2760 suffix then without, otherwise iterate over the paths once without
2761 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2762 to avoid visiting the same path twice, but we could do better. For
2763 instance, /usr/lib/../lib is considered different from /usr/lib.
2764 At least EXTRA_SPACE chars past the end of the path passed to
2765 CALLBACK are available for use by the callback.
2766 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2768 Returns the value returned by CALLBACK. */
2771 for_each_path (const struct path_prefix
*paths
,
2774 void *(*callback
) (char *, void *),
2775 void *callback_info
)
2777 struct prefix_list
*pl
;
2778 const char *multi_dir
= NULL
;
2779 const char *multi_os_dir
= NULL
;
2780 const char *multiarch_suffix
= NULL
;
2781 const char *multi_suffix
;
2782 const char *just_multi_suffix
;
2785 bool skip_multi_dir
= false;
2786 bool skip_multi_os_dir
= false;
2788 multi_suffix
= machine_suffix
;
2789 just_multi_suffix
= just_machine_suffix
;
2790 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2792 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2793 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2794 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2796 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2797 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2799 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2803 size_t multi_dir_len
= 0;
2804 size_t multi_os_dir_len
= 0;
2805 size_t multiarch_len
= 0;
2807 size_t just_suffix_len
;
2811 multi_dir_len
= strlen (multi_dir
);
2813 multi_os_dir_len
= strlen (multi_os_dir
);
2814 if (multiarch_suffix
)
2815 multiarch_len
= strlen (multiarch_suffix
);
2816 suffix_len
= strlen (multi_suffix
);
2817 just_suffix_len
= strlen (just_multi_suffix
);
2821 len
= paths
->max_len
+ extra_space
+ 1;
2822 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2823 path
= XNEWVEC (char, len
);
2826 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2828 len
= strlen (pl
->prefix
);
2829 memcpy (path
, pl
->prefix
, len
);
2831 /* Look first in MACHINE/VERSION subdirectory. */
2832 if (!skip_multi_dir
)
2834 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2835 ret
= callback (path
, callback_info
);
2840 /* Some paths are tried with just the machine (ie. target)
2841 subdir. This is used for finding as, ld, etc. */
2843 && pl
->require_machine_suffix
== 2)
2845 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2846 ret
= callback (path
, callback_info
);
2851 /* Now try the multiarch path. */
2853 && !pl
->require_machine_suffix
&& multiarch_dir
)
2855 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2856 ret
= callback (path
, callback_info
);
2861 /* Now try the base path. */
2862 if (!pl
->require_machine_suffix
2863 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2865 const char *this_multi
;
2866 size_t this_multi_len
;
2868 if (pl
->os_multilib
)
2870 this_multi
= multi_os_dir
;
2871 this_multi_len
= multi_os_dir_len
;
2875 this_multi
= multi_dir
;
2876 this_multi_len
= multi_dir_len
;
2880 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2884 ret
= callback (path
, callback_info
);
2892 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2895 /* Run through the paths again, this time without multilibs.
2896 Don't repeat any we have already seen. */
2899 free (CONST_CAST (char *, multi_dir
));
2901 free (CONST_CAST (char *, multi_suffix
));
2902 multi_suffix
= machine_suffix
;
2903 free (CONST_CAST (char *, just_multi_suffix
));
2904 just_multi_suffix
= just_machine_suffix
;
2907 skip_multi_dir
= true;
2910 free (CONST_CAST (char *, multi_os_dir
));
2911 multi_os_dir
= NULL
;
2914 skip_multi_os_dir
= true;
2919 free (CONST_CAST (char *, multi_dir
));
2920 free (CONST_CAST (char *, multi_suffix
));
2921 free (CONST_CAST (char *, just_multi_suffix
));
2924 free (CONST_CAST (char *, multi_os_dir
));
2930 /* Callback for build_search_list. Adds path to obstack being built. */
2932 struct add_to_obstack_info
{
2939 add_to_obstack (char *path
, void *data
)
2941 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2943 if (info
->check_dir
&& !is_directory (path
, false))
2946 if (!info
->first_time
)
2947 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2949 obstack_grow (info
->ob
, path
, strlen (path
));
2951 info
->first_time
= false;
2955 /* Add or change the value of an environment variable, outputting the
2956 change to standard error if in verbose mode. */
2958 xputenv (const char *string
)
2963 /* Build a list of search directories from PATHS.
2964 PREFIX is a string to prepend to the list.
2965 If CHECK_DIR_P is true we ensure the directory exists.
2966 If DO_MULTI is true, multilib paths are output first, then
2968 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2969 It is also used by the --print-search-dirs flag. */
2972 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2973 bool check_dir
, bool do_multi
)
2975 struct add_to_obstack_info info
;
2977 info
.ob
= &collect_obstack
;
2978 info
.check_dir
= check_dir
;
2979 info
.first_time
= true;
2981 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2982 obstack_1grow (&collect_obstack
, '=');
2984 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2986 obstack_1grow (&collect_obstack
, '\0');
2987 return XOBFINISH (&collect_obstack
, char *);
2990 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2994 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2997 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
3000 /* Check whether NAME can be accessed in MODE. This is like access,
3001 except that it never considers directories to be executable. */
3004 access_check (const char *name
, int mode
)
3010 if (stat (name
, &st
) < 0
3011 || S_ISDIR (st
.st_mode
))
3015 return access (name
, mode
);
3018 /* Callback for find_a_file. Appends the file name to the directory
3019 path. If the resulting file exists in the right mode, return the
3020 full pathname to the file. */
3022 struct file_at_path_info
{
3031 file_at_path (char *path
, void *data
)
3033 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
3034 size_t len
= strlen (path
);
3036 memcpy (path
+ len
, info
->name
, info
->name_len
);
3037 len
+= info
->name_len
;
3039 /* Some systems have a suffix for executable files.
3040 So try appending that first. */
3041 if (info
->suffix_len
)
3043 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
3044 if (access_check (path
, info
->mode
) == 0)
3049 if (access_check (path
, info
->mode
) == 0)
3055 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
3056 access to check permissions. If DO_MULTI is true, search multilib
3057 paths then non-multilib paths, otherwise do not search multilib paths.
3058 Return 0 if not found, otherwise return its name, allocated with malloc. */
3061 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
3064 struct file_at_path_info info
;
3066 /* Find the filename in question (special case for absolute paths). */
3068 if (IS_ABSOLUTE_PATH (name
))
3070 if (access (name
, mode
) == 0)
3071 return xstrdup (name
);
3077 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
3078 info
.name_len
= strlen (info
.name
);
3079 info
.suffix_len
= strlen (info
.suffix
);
3082 return (char*) for_each_path (pprefix
, do_multi
,
3083 info
.name_len
+ info
.suffix_len
,
3084 file_at_path
, &info
);
3087 /* Specialization of find_a_file for programs that also takes into account
3088 configure-specified default programs. */
3091 find_a_program (const char *name
)
3093 /* Do not search if default matches query. */
3095 #ifdef DEFAULT_ASSEMBLER
3096 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, X_OK
) == 0)
3097 return xstrdup (DEFAULT_ASSEMBLER
);
3100 #ifdef DEFAULT_LINKER
3101 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, X_OK
) == 0)
3102 return xstrdup (DEFAULT_LINKER
);
3105 #ifdef DEFAULT_DSYMUTIL
3106 if (! strcmp (name
, "dsymutil") && access (DEFAULT_DSYMUTIL
, X_OK
) == 0)
3107 return xstrdup (DEFAULT_DSYMUTIL
);
3110 return find_a_file (&exec_prefixes
, name
, X_OK
, false);
3113 /* Ranking of prefixes in the sort list. -B prefixes are put before
3116 enum path_prefix_priority
3118 PREFIX_PRIORITY_B_OPT
,
3119 PREFIX_PRIORITY_LAST
3122 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
3123 order according to PRIORITY. Within each PRIORITY, new entries are
3126 If WARN is nonzero, we will warn if no file is found
3127 through this prefix. WARN should point to an int
3128 which will be set to 1 if this entry is used.
3130 COMPONENT is the value to be passed to update_path.
3132 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
3133 the complete value of machine_suffix.
3134 2 means try both machine_suffix and just_machine_suffix. */
3137 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
3138 const char *component
, /* enum prefix_priority */ int priority
,
3139 int require_machine_suffix
, int os_multilib
)
3141 struct prefix_list
*pl
, **prev
;
3144 for (prev
= &pprefix
->plist
;
3145 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
3146 prev
= &(*prev
)->next
)
3149 /* Keep track of the longest prefix. */
3151 prefix
= update_path (prefix
, component
);
3152 len
= strlen (prefix
);
3153 if (len
> pprefix
->max_len
)
3154 pprefix
->max_len
= len
;
3156 pl
= XNEW (struct prefix_list
);
3157 pl
->prefix
= prefix
;
3158 pl
->require_machine_suffix
= require_machine_suffix
;
3159 pl
->priority
= priority
;
3160 pl
->os_multilib
= os_multilib
;
3162 /* Insert after PREV. */
3167 /* Same as add_prefix, but prepending target_system_root to prefix. */
3168 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
3170 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
3171 const char *component
,
3172 /* enum prefix_priority */ int priority
,
3173 int require_machine_suffix
, int os_multilib
)
3175 if (!IS_ABSOLUTE_PATH (prefix
))
3176 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
3178 if (target_system_root
)
3180 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
3181 size_t sysroot_len
= strlen (target_system_root
);
3184 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
3185 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
3187 if (target_sysroot_suffix
)
3188 prefix
= concat (sysroot_no_trailing_dir_separator
,
3189 target_sysroot_suffix
, prefix
, NULL
);
3191 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
3193 free (sysroot_no_trailing_dir_separator
);
3195 /* We have to override this because GCC's notion of sysroot
3196 moves along with GCC. */
3200 add_prefix (pprefix
, prefix
, component
, priority
,
3201 require_machine_suffix
, os_multilib
);
3204 /* Same as add_prefix, but prepending target_sysroot_hdrs_suffix to prefix. */
3207 add_sysrooted_hdrs_prefix (struct path_prefix
*pprefix
, const char *prefix
,
3208 const char *component
,
3209 /* enum prefix_priority */ int priority
,
3210 int require_machine_suffix
, int os_multilib
)
3212 if (!IS_ABSOLUTE_PATH (prefix
))
3213 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
3215 if (target_system_root
)
3217 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
3218 size_t sysroot_len
= strlen (target_system_root
);
3221 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
3222 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
3224 if (target_sysroot_hdrs_suffix
)
3225 prefix
= concat (sysroot_no_trailing_dir_separator
,
3226 target_sysroot_hdrs_suffix
, prefix
, NULL
);
3228 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
3230 free (sysroot_no_trailing_dir_separator
);
3232 /* We have to override this because GCC's notion of sysroot
3233 moves along with GCC. */
3237 add_prefix (pprefix
, prefix
, component
, priority
,
3238 require_machine_suffix
, os_multilib
);
3242 /* Execute the command specified by the arguments on the current line of spec.
3243 When using pipes, this includes several piped-together commands
3244 with `|' between them.
3246 Return 0 if successful, -1 if failed. */
3252 int n_commands
; /* # of command. */
3254 struct pex_obj
*pex
;
3257 const char *prog
; /* program name. */
3258 const char **argv
; /* vector of args. */
3262 struct command
*commands
; /* each command buffer with above info. */
3264 gcc_assert (!processing_spec_function
);
3268 string
= find_a_program (argbuf
[0]);
3271 insert_wrapper (wrapper_string
);
3274 /* Count # of piped commands. */
3275 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
3276 if (strcmp (arg
, "|") == 0)
3279 /* Get storage for each command. */
3280 commands
= XALLOCAVEC (struct command
, n_commands
);
3282 /* Split argbuf into its separate piped processes,
3283 and record info about each one.
3284 Also search for the programs that are to be run. */
3286 argbuf
.safe_push (0);
3288 commands
[0].prog
= argbuf
[0]; /* first command. */
3289 commands
[0].argv
= argbuf
.address ();
3291 if (!wrapper_string
)
3293 string
= find_a_program(commands
[0].prog
);
3295 commands
[0].argv
[0] = string
;
3298 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
3299 if (arg
&& strcmp (arg
, "|") == 0)
3300 { /* each command. */
3301 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
3302 fatal_error (input_location
, "%<-pipe%> not supported");
3304 argbuf
[i
] = 0; /* Termination of command args. */
3305 commands
[n_commands
].prog
= argbuf
[i
+ 1];
3306 commands
[n_commands
].argv
3307 = &(argbuf
.address ())[i
+ 1];
3308 string
= find_a_program(commands
[n_commands
].prog
);
3310 commands
[n_commands
].argv
[0] = string
;
3314 /* If -v, print what we are about to do, and maybe query. */
3318 /* For help listings, put a blank line between sub-processes. */
3319 if (print_help_list
)
3320 fputc ('\n', stderr
);
3322 /* Print each piped command as a separate line. */
3323 for (i
= 0; i
< n_commands
; i
++)
3325 const char *const *j
;
3327 if (verbose_only_flag
)
3329 for (j
= commands
[i
].argv
; *j
; j
++)
3332 for (p
= *j
; *p
; ++p
)
3333 if (!ISALNUM ((unsigned char) *p
)
3334 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
3338 fprintf (stderr
, " \"");
3339 for (p
= *j
; *p
; ++p
)
3341 if (*p
== '"' || *p
== '\\' || *p
== '$')
3342 fputc ('\\', stderr
);
3345 fputc ('"', stderr
);
3347 /* If it's empty, print "". */
3349 fprintf (stderr
, " \"\"");
3351 fprintf (stderr
, " %s", *j
);
3355 for (j
= commands
[i
].argv
; *j
; j
++)
3356 /* If it's empty, print "". */
3358 fprintf (stderr
, " \"\"");
3360 fprintf (stderr
, " %s", *j
);
3362 /* Print a pipe symbol after all but the last command. */
3363 if (i
+ 1 != n_commands
)
3364 fprintf (stderr
, " |");
3365 fprintf (stderr
, "\n");
3368 if (verbose_only_flag
!= 0)
3370 /* verbose_only_flag should act as if the spec was
3371 executed, so increment execution_count before
3372 returning. This prevents spurious warnings about
3373 unused linker input files, etc. */
3378 fnotice (stderr
, "\nGo ahead? (y or n) ");
3382 while (getchar () != '\n')
3385 if (i
!= 'y' && i
!= 'Y')
3390 #ifdef ENABLE_VALGRIND_CHECKING
3391 /* Run the each command through valgrind. To simplify prepending the
3392 path to valgrind and the option "-q" (for quiet operation unless
3393 something triggers), we allocate a separate argv array. */
3395 for (i
= 0; i
< n_commands
; i
++)
3401 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3404 argv
= XALLOCAVEC (const char *, argc
+ 3);
3406 argv
[0] = VALGRIND_PATH
;
3408 for (j
= 2; j
< argc
+ 2; j
++)
3409 argv
[j
] = commands
[i
].argv
[j
- 2];
3412 commands
[i
].argv
= argv
;
3413 commands
[i
].prog
= argv
[0];
3417 /* Run each piped subprocess. */
3419 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3420 ? PEX_RECORD_TIMES
: 0),
3421 progname
, temp_filename
);
3423 fatal_error (input_location
, "%<pex_init%> failed: %m");
3425 for (i
= 0; i
< n_commands
; i
++)
3429 const char *string
= commands
[i
].argv
[0];
3431 errmsg
= pex_run (pex
,
3432 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3433 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3434 string
, CONST_CAST (char **, commands
[i
].argv
),
3439 fatal_error (input_location
,
3440 err
? G_("cannot execute %qs: %s: %m")
3441 : G_("cannot execute %qs: %s"),
3445 if (i
&& string
!= commands
[i
].prog
)
3446 free (CONST_CAST (char *, string
));
3451 /* Wait for all the subprocesses to finish. */
3455 struct pex_time
*times
= NULL
;
3458 statuses
= XALLOCAVEC (int, n_commands
);
3459 if (!pex_get_status (pex
, n_commands
, statuses
))
3460 fatal_error (input_location
, "failed to get exit status: %m");
3462 if (report_times
|| report_times_to_file
)
3464 times
= XALLOCAVEC (struct pex_time
, n_commands
);
3465 if (!pex_get_times (pex
, n_commands
, times
))
3466 fatal_error (input_location
, "failed to get process times: %m");
3471 for (i
= 0; i
< n_commands
; ++i
)
3473 int status
= statuses
[i
];
3475 if (WIFSIGNALED (status
))
3476 switch (WTERMSIG (status
))
3480 /* SIGQUIT and SIGKILL are not available on MinGW. */
3487 /* The user (or environment) did something to the
3488 inferior. Making this an ICE confuses the user into
3489 thinking there's a compiler bug. Much more likely is
3490 the user or OOM killer nuked it. */
3491 fatal_error (input_location
,
3492 "%s signal terminated program %s",
3493 strsignal (WTERMSIG (status
)),
3499 /* SIGPIPE is a special case. It happens in -pipe mode
3500 when the compiler dies before the preprocessor is
3501 done, or the assembler dies before the compiler is
3502 done. There's generally been an error already, and
3503 this is just fallout. So don't generate another
3504 error unless we would otherwise have succeeded. */
3505 if (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
)
3515 /* The inferior failed to catch the signal. */
3516 internal_error_no_backtrace ("%s signal terminated program %s",
3517 strsignal (WTERMSIG (status
)),
3520 else if (WIFEXITED (status
)
3521 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3523 /* For ICEs in cc1, cc1obj, cc1plus see if it is
3524 reproducible or not. */
3527 && WEXITSTATUS (status
) == ICE_EXIT_CODE
3529 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
3530 && startswith (p
+ 1, "cc1"))
3531 try_generate_repro (commands
[0].argv
);
3532 if (WEXITSTATUS (status
) > greatest_status
)
3533 greatest_status
= WEXITSTATUS (status
);
3537 if (report_times
|| report_times_to_file
)
3539 struct pex_time
*pt
= ×
[i
];
3542 ut
= ((double) pt
->user_seconds
3543 + (double) pt
->user_microseconds
/ 1.0e6
);
3544 st
= ((double) pt
->system_seconds
3545 + (double) pt
->system_microseconds
/ 1.0e6
);
3550 fnotice (stderr
, "# %s %.2f %.2f\n",
3551 commands
[i
].prog
, ut
, st
);
3553 if (report_times_to_file
)
3556 const char *const *j
;
3558 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3560 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3563 for (p
= *j
; *p
; ++p
)
3564 if (*p
== '"' || *p
== '\\' || *p
== '$'
3570 fprintf (report_times_to_file
, " \"");
3571 for (p
= *j
; *p
; ++p
)
3573 if (*p
== '"' || *p
== '\\' || *p
== '$')
3574 fputc ('\\', report_times_to_file
);
3575 fputc (*p
, report_times_to_file
);
3577 fputc ('"', report_times_to_file
);
3580 fprintf (report_times_to_file
, " %s", *j
);
3583 fputc ('\n', report_times_to_file
);
3589 if (commands
[0].argv
[0] != commands
[0].prog
)
3590 free (CONST_CAST (char *, commands
[0].argv
[0]));
3596 static struct switchstr
*switches
;
3598 static int n_switches
;
3600 static int n_switches_alloc
;
3602 /* Set to zero if -fcompare-debug is disabled, positive if it's
3603 enabled and we're running the first compilation, negative if it's
3604 enabled and we're running the second compilation. For most of the
3605 time, it's in the range -1..1, but it can be temporarily set to 2
3606 or 3 to indicate that the -fcompare-debug flags didn't come from
3607 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3608 variable, until a synthesized -fcompare-debug flag is added to the
3612 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3613 int compare_debug_second
;
3615 /* Set to the flags that should be passed to the second compilation in
3616 a -fcompare-debug compilation. */
3617 const char *compare_debug_opt
;
3619 static struct switchstr
*switches_debug_check
[2];
3621 static int n_switches_debug_check
[2];
3623 static int n_switches_alloc_debug_check
[2];
3625 static char *debug_check_temp_file
[2];
3627 /* Language is one of three things:
3629 1) The name of a real programming language.
3630 2) NULL, indicating that no one has figured out
3632 3) '*', indicating that the file should be passed
3637 const char *language
;
3638 struct compiler
*incompiler
;
3643 /* Also a vector of input files specified. */
3645 static struct infile
*infiles
;
3649 static int n_infiles_alloc
;
3651 /* True if undefined environment variables encountered during spec processing
3652 are ok to ignore, typically when we're running for --help or --version. */
3654 static bool spec_undefvar_allowed
;
3656 /* True if multiple input files are being compiled to a single
3659 static bool combine_inputs
;
3661 /* This counts the number of libraries added by lang_specific_driver, so that
3662 we can tell if there were any user supplied any files or libraries. */
3664 static int added_libraries
;
3666 /* And a vector of corresponding output files is made up later. */
3668 const char **outfiles
;
3670 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3672 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3673 is true if we should look for an executable suffix. DO_OBJ
3674 is true if we should look for an object suffix. */
3677 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3678 int do_obj ATTRIBUTE_UNUSED
)
3680 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3688 len
= strlen (name
);
3690 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3691 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3692 if (do_obj
&& len
> 2
3693 && name
[len
- 2] == '.'
3694 && name
[len
- 1] == 'o')
3696 obstack_grow (&obstack
, name
, len
- 2);
3697 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3698 name
= XOBFINISH (&obstack
, const char *);
3702 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3703 /* If there is no filetype, make it the executable suffix (which includes
3704 the "."). But don't get confused if we have just "-o". */
3705 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || not_actual_file_p (name
))
3708 for (i
= len
- 1; i
>= 0; i
--)
3709 if (IS_DIR_SEPARATOR (name
[i
]))
3712 for (i
++; i
< len
; i
++)
3716 obstack_grow (&obstack
, name
, len
);
3717 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3718 strlen (TARGET_EXECUTABLE_SUFFIX
));
3719 name
= XOBFINISH (&obstack
, const char *);
3726 /* Display the command line switches accepted by gcc. */
3730 printf (_("Usage: %s [options] file...\n"), progname
);
3731 fputs (_("Options:\n"), stdout
);
3733 fputs (_(" -pass-exit-codes Exit with highest error code from a phase.\n"), stdout
);
3734 fputs (_(" --help Display this information.\n"), stdout
);
3735 fputs (_(" --target-help Display target specific command line options "
3736 "(including assembler and linker options).\n"), stdout
);
3737 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...].\n"), stdout
);
3738 fputs (_(" Display specific types of command line options.\n"), stdout
);
3740 fputs (_(" (Use '-v --help' to display command line options of sub-processes).\n"), stdout
);
3741 fputs (_(" --version Display compiler version information.\n"), stdout
);
3742 fputs (_(" -dumpspecs Display all of the built in spec strings.\n"), stdout
);
3743 fputs (_(" -dumpversion Display the version of the compiler.\n"), stdout
);
3744 fputs (_(" -dumpmachine Display the compiler's target processor.\n"), stdout
);
3745 fputs (_(" -foffload=<targets> Specify offloading targets.\n"), stdout
);
3746 fputs (_(" -print-search-dirs Display the directories in the compiler's search path.\n"), stdout
);
3747 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library.\n"), stdout
);
3748 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>.\n"), stdout
);
3749 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>.\n"), stdout
);
3751 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3752 a component in the library path.\n"), stdout
);
3753 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc.\n"), stdout
);
3755 -print-multi-lib Display the mapping between command line options and\n\
3756 multiple library search directories.\n"), stdout
);
3757 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries.\n"), stdout
);
3758 fputs (_(" -print-sysroot Display the target libraries directory.\n"), stdout
);
3759 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers.\n"), stdout
);
3760 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler.\n"), stdout
);
3761 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor.\n"), stdout
);
3762 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker.\n"), stdout
);
3763 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler.\n"), stdout
);
3764 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor.\n"), stdout
);
3765 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker.\n"), stdout
);
3766 fputs (_(" -save-temps Do not delete intermediate files.\n"), stdout
);
3767 fputs (_(" -save-temps=<arg> Do not delete intermediate files.\n"), stdout
);
3769 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3770 prefixes to other gcc components.\n"), stdout
);
3771 fputs (_(" -pipe Use pipes rather than intermediate files.\n"), stdout
);
3772 fputs (_(" -time Time the execution of each subprocess.\n"), stdout
);
3773 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>.\n"), stdout
);
3774 fputs (_(" -std=<standard> Assume that the input sources are for <standard>.\n"), stdout
);
3776 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3777 and libraries.\n"), stdout
);
3778 fputs (_(" -B <directory> Add <directory> to the compiler's search paths.\n"), stdout
);
3779 fputs (_(" -v Display the programs invoked by the compiler.\n"), stdout
);
3780 fputs (_(" -### Like -v but options quoted and commands not executed.\n"), stdout
);
3781 fputs (_(" -E Preprocess only; do not compile, assemble or link.\n"), stdout
);
3782 fputs (_(" -S Compile only; do not assemble or link.\n"), stdout
);
3783 fputs (_(" -c Compile and assemble, but do not link.\n"), stdout
);
3784 fputs (_(" -o <file> Place the output into <file>.\n"), stdout
);
3785 fputs (_(" -pie Create a dynamically linked position independent\n\
3786 executable.\n"), stdout
);
3787 fputs (_(" -shared Create a shared library.\n"), stdout
);
3789 -x <language> Specify the language of the following input files.\n\
3790 Permissible languages include: c c++ assembler none\n\
3791 'none' means revert to the default behavior of\n\
3792 guessing the language based on the file's extension.\n\
3796 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3797 passed on to the various sub-processes invoked by %s. In order to pass\n\
3798 other options on to these processes the -W<letter> options must be used.\n\
3801 /* The rest of the options are displayed by invocations of the various
3806 add_preprocessor_option (const char *option
, int len
)
3808 preprocessor_options
.safe_push (save_string (option
, len
));
3812 add_assembler_option (const char *option
, int len
)
3814 assembler_options
.safe_push (save_string (option
, len
));
3818 add_linker_option (const char *option
, int len
)
3820 linker_options
.safe_push (save_string (option
, len
));
3823 /* Allocate space for an input file in infiles. */
3828 if (n_infiles_alloc
== 0)
3830 n_infiles_alloc
= 16;
3831 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3833 else if (n_infiles_alloc
== n_infiles
)
3835 n_infiles_alloc
*= 2;
3836 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3840 /* Store an input file with the given NAME and LANGUAGE in
3844 add_infile (const char *name
, const char *language
)
3847 infiles
[n_infiles
].name
= name
;
3848 infiles
[n_infiles
++].language
= language
;
3851 /* Allocate space for a switch in switches. */
3856 if (n_switches_alloc
== 0)
3858 n_switches_alloc
= 16;
3859 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3861 else if (n_switches_alloc
== n_switches
)
3863 n_switches_alloc
*= 2;
3864 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3868 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3869 as validated if VALIDATED and KNOWN if it is an internal switch. */
3872 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3873 bool validated
, bool known
)
3876 switches
[n_switches
].part1
= opt
+ 1;
3878 switches
[n_switches
].args
= 0;
3881 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3882 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3883 switches
[n_switches
].args
[n_args
] = NULL
;
3886 switches
[n_switches
].live_cond
= 0;
3887 switches
[n_switches
].validated
= validated
;
3888 switches
[n_switches
].known
= known
;
3889 switches
[n_switches
].ordering
= 0;
3893 /* Set the SOURCE_DATE_EPOCH environment variable to the current time if it is
3897 set_source_date_epoch_envvar ()
3899 /* Array size is 21 = ceil(log_10(2^64)) + 1 to hold string representations
3900 of 64 bit integers. */
3901 char source_date_epoch
[21];
3906 if (tt
< (time_t) 0 || errno
!= 0)
3909 snprintf (source_date_epoch
, 21, "%llu", (unsigned long long) tt
);
3910 /* Using setenv instead of xputenv because we want the variable to remain
3911 after finalizing so that it's still set in the second run when using
3913 setenv ("SOURCE_DATE_EPOCH", source_date_epoch
, 0);
3916 /* Handle an option DECODED that is unknown to the option-processing
3920 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3922 const char *opt
= decoded
->arg
;
3923 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3924 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3926 /* Leave unknown -Wno-* options for the compiler proper, to be
3927 diagnosed only if there are warnings. */
3928 save_switch (decoded
->canonical_option
[0],
3929 decoded
->canonical_option_num_elements
- 1,
3930 &decoded
->canonical_option
[1], false, true);
3933 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3935 /* Give it a chance to define it a spec file. */
3936 save_switch (decoded
->canonical_option
[0],
3937 decoded
->canonical_option_num_elements
- 1,
3938 &decoded
->canonical_option
[1], false, false);
3945 /* Handle an option DECODED that is not marked as CL_DRIVER.
3946 LANG_MASK will always be CL_DRIVER. */
3949 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3950 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3952 /* At this point, non-driver options are accepted (and expected to
3953 be passed down by specs) unless marked to be rejected by the
3954 driver. Options to be rejected by the driver but accepted by the
3955 compilers proper are treated just like completely unknown
3957 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3959 if (option
->cl_reject_driver
)
3960 error ("unrecognized command-line option %qs",
3961 decoded
->orig_option_with_args_text
);
3963 save_switch (decoded
->canonical_option
[0],
3964 decoded
->canonical_option_num_elements
- 1,
3965 &decoded
->canonical_option
[1], false, true);
3968 static const char *spec_lang
= 0;
3969 static int last_language_n_infiles
;
3972 /* Check that GCC is configured to support the offload target. */
3975 check_offload_target_name (const char *target
, ptrdiff_t len
)
3977 const char *n
, *c
= OFFLOAD_TARGETS
;
3980 n
= strchr (c
, ',');
3982 n
= strchr (c
, '\0');
3983 if (len
== n
- c
&& strncmp (target
, c
, n
- c
) == 0)
3985 c
= *n
? n
+ 1 : NULL
;
3989 auto_vec
<const char*> candidates
;
3990 size_t olen
= strlen (OFFLOAD_TARGETS
) + 1;
3991 char *cand
= XALLOCAVEC (char, olen
);
3992 memcpy (cand
, OFFLOAD_TARGETS
, olen
);
3993 for (c
= strtok (cand
, ","); c
; c
= strtok (NULL
, ","))
3994 candidates
.safe_push (c
);
3995 candidates
.safe_push ("default");
3996 candidates
.safe_push ("disable");
3998 char *target2
= XALLOCAVEC (char, len
+ 1);
3999 memcpy (target2
, target
, len
);
4000 target2
[len
] = '\0';
4002 error ("GCC is not configured to support %qs as %<-foffload=%> argument",
4006 const char *hint
= candidates_list_and_hint (target2
, s
, candidates
);
4008 inform (UNKNOWN_LOCATION
,
4009 "valid %<-foffload=%> arguments are: %s; "
4010 "did you mean %qs?", s
, hint
);
4012 inform (UNKNOWN_LOCATION
, "valid %<-foffload=%> arguments are: %s", s
);
4019 /* Sanity check for -foffload-options. */
4022 check_foffload_target_names (const char *arg
)
4024 const char *cur
, *next
, *end
;
4025 /* If option argument starts with '-' then no target is specified and we
4026 do not need to parse it. */
4029 end
= strchr (arg
, '=');
4032 error ("%<=%>options missing after %<-foffload-options=%>target");
4039 next
= strchr (cur
, ',');
4042 next
= (next
> end
) ? end
: next
;
4044 /* Retain non-supported targets after printing an error as those will not
4045 be processed; each enabled target only processes its triplet. */
4046 check_offload_target_name (cur
, next
- cur
);
4051 /* Parse -foffload option argument. */
4054 handle_foffload_option (const char *arg
)
4056 const char *c
, *cur
, *n
, *next
, *end
;
4059 /* If option argument starts with '-' then no target is specified and we
4060 do not need to parse it. */
4064 end
= strchr (arg
, '=');
4066 end
= strchr (arg
, '\0');
4071 next
= strchr (cur
, ',');
4074 next
= (next
> end
) ? end
: next
;
4076 target
= XNEWVEC (char, next
- cur
+ 1);
4077 memcpy (target
, cur
, next
- cur
);
4078 target
[next
- cur
] = '\0';
4080 /* Reset offloading list and continue. */
4081 if (strcmp (target
, "default") == 0)
4083 free (offload_targets
);
4084 offload_targets
= NULL
;
4088 /* If 'disable' is passed to the option, clean the list of
4089 offload targets and return, even if more targets follow.
4090 Likewise if GCC is not configured to support that offload target. */
4091 if (strcmp (target
, "disable") == 0
4092 || !check_offload_target_name (target
, next
- cur
))
4094 free (offload_targets
);
4095 offload_targets
= xstrdup ("");
4099 if (!offload_targets
)
4101 offload_targets
= target
;
4106 /* Check that the target hasn't already presented in the list. */
4107 c
= offload_targets
;
4110 n
= strchr (c
, ':');
4112 n
= strchr (c
, '\0');
4114 if (next
- cur
== n
- c
&& strncmp (c
, target
, n
- c
) == 0)
4121 /* If duplicate is not found, append the target to the list. */
4124 size_t offload_targets_len
= strlen (offload_targets
);
4126 = XRESIZEVEC (char, offload_targets
,
4127 offload_targets_len
+ 1 + next
- cur
+ 1);
4128 offload_targets
[offload_targets_len
++] = ':';
4129 memcpy (offload_targets
+ offload_targets_len
, target
, next
- cur
+ 1);
4134 XDELETEVEC (target
);
4138 /* Forward certain options to offloading compilation. */
4141 forward_offload_option (size_t opt_index
, const char *arg
, bool validated
)
4146 /* Use a '_GCC_' prefix and standard name ('-l_GCC_m' irrespective of the
4147 host's 'MATH_LIBRARY', for example), so that the 'mkoffload's can tell
4148 this has been synthesized here, and translate/drop as necessary. */
4149 /* Note that certain libraries ('-lc', '-lgcc', '-lgomp', for example)
4150 are injected by default in offloading compilation, and therefore not
4152 /* GCC libraries. */
4153 if (/* '-lgfortran' */ strcmp (arg
, "gfortran") == 0 )
4154 save_switch (concat ("-foffload-options=-l_GCC_", arg
, NULL
),
4155 0, NULL
, validated
, true);
4156 /* Other libraries. */
4159 /* The case will need special consideration where on the host
4160 '!need_math', but for offloading compilation still need
4161 '-foffload-options=-l_GCC_m'. The problem is that we don't get
4162 here anything like '-lm', because it's not synthesized in
4163 'gcc/fortran/gfortranspec.cc:lang_specific_driver', for example.
4164 Generally synthesizing '-foffload-options=-l_GCC_m' etc. in the
4165 language specific drivers is non-trivial, needs very careful
4166 review of their options handling. However, this issue is not
4167 actually relevant for the current set of supported host/offloading
4169 int need_math
= (MATH_LIBRARY
[0] != '\0');
4170 if (/* '-lm' */ (need_math
&& strcmp (arg
, MATH_LIBRARY
) == 0))
4171 save_switch ("-foffload-options=-l_GCC_m",
4172 0, NULL
, validated
, true);
4180 /* Handle a driver option; arguments and return value as for
4184 driver_handle_option (struct gcc_options
*opts
,
4185 struct gcc_options
*opts_set
,
4186 const struct cl_decoded_option
*decoded
,
4187 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
4189 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
4190 diagnostic_context
*dc
,
4193 size_t opt_index
= decoded
->opt_index
;
4194 const char *arg
= decoded
->arg
;
4195 const char *compare_debug_replacement_opt
;
4196 int value
= decoded
->value
;
4197 bool validated
= false;
4198 bool do_save
= true;
4200 gcc_assert (opts
== &global_options
);
4201 gcc_assert (opts_set
== &global_options_set
);
4202 gcc_assert (kind
== DK_UNSPECIFIED
);
4203 gcc_assert (loc
== UNKNOWN_LOCATION
);
4204 gcc_assert (dc
== global_dc
);
4210 struct spec_list
*sl
;
4212 for (sl
= specs
; sl
; sl
= sl
->next
)
4213 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
4214 if (link_command_spec
)
4215 printf ("*link_command:\n%s\n\n", link_command_spec
);
4219 case OPT_dumpversion
:
4220 printf ("%s\n", spec_version
);
4223 case OPT_dumpmachine
:
4224 printf ("%s\n", spec_machine
);
4227 case OPT_dumpfullversion
:
4228 printf ("%s\n", BASEVER
);
4234 /* CPP driver cannot obtain switch from cc1_options. */
4236 add_preprocessor_option ("--version", strlen ("--version"));
4237 add_assembler_option ("--version", strlen ("--version"));
4238 add_linker_option ("--version", strlen ("--version"));
4241 case OPT__completion_
:
4243 completion
= decoded
->arg
;
4247 print_help_list
= 1;
4249 /* CPP driver cannot obtain switch from cc1_options. */
4251 add_preprocessor_option ("--help", 6);
4252 add_assembler_option ("--help", 6);
4253 add_linker_option ("--help", 6);
4257 print_subprocess_help
= 2;
4260 case OPT__target_help
:
4261 print_subprocess_help
= 1;
4263 /* CPP driver cannot obtain switch from cc1_options. */
4265 add_preprocessor_option ("--target-help", 13);
4266 add_assembler_option ("--target-help", 13);
4267 add_linker_option ("--target-help", 13);
4270 case OPT__no_sysroot_suffix
:
4271 case OPT_pass_exit_codes
:
4272 case OPT_print_search_dirs
:
4273 case OPT_print_file_name_
:
4274 case OPT_print_prog_name_
:
4275 case OPT_print_multi_lib
:
4276 case OPT_print_multi_directory
:
4277 case OPT_print_sysroot
:
4278 case OPT_print_multi_os_directory
:
4279 case OPT_print_multiarch
:
4280 case OPT_print_sysroot_headers_suffix
:
4283 /* These options set the variables specified in common.opt
4284 automatically, and do not need to be saved for spec
4289 case OPT_print_libgcc_file_name
:
4290 print_file_name
= "libgcc.a";
4294 case OPT_fuse_ld_bfd
:
4298 case OPT_fuse_ld_gold
:
4302 case OPT_fuse_ld_mold
:
4306 case OPT_fcompare_debug_second
:
4307 compare_debug_second
= 1;
4310 case OPT_fcompare_debug
:
4314 compare_debug_replacement_opt
= "-fcompare-debug=";
4316 goto compare_debug_with_arg
;
4319 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
4321 goto compare_debug_with_arg
;
4328 case OPT_fcompare_debug_
:
4329 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
4330 compare_debug_with_arg
:
4331 gcc_assert (decoded
->canonical_option_num_elements
== 1);
4332 gcc_assert (arg
!= NULL
);
4337 if (compare_debug
< 0)
4338 compare_debug_opt
= NULL
;
4340 compare_debug_opt
= arg
;
4341 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
4342 set_source_date_epoch_envvar ();
4345 case OPT_fdiagnostics_color_
:
4346 diagnostic_color_init (dc
, value
);
4349 case OPT_fdiagnostics_urls_
:
4350 diagnostic_urls_init (dc
, value
);
4353 case OPT_fdiagnostics_format_
:
4355 const char *basename
= (opts
->x_dump_base_name
? opts
->x_dump_base_name
4356 : opts
->x_main_input_basename
);
4357 diagnostic_output_format_init (dc
, basename
,
4358 (enum diagnostics_output_format
)value
,
4359 opts
->x_flag_diagnostics_json_formatting
);
4363 case OPT_fdiagnostics_text_art_charset_
:
4364 dc
->set_text_art_charset ((enum diagnostic_text_art_charset
)value
);
4370 /* Pass the rest of this option to the assembler. */
4372 /* Split the argument at commas. */
4374 for (j
= 0; arg
[j
]; j
++)
4377 add_assembler_option (arg
+ prev
, j
- prev
);
4381 /* Record the part after the last comma. */
4382 add_assembler_option (arg
+ prev
, j
- prev
);
4390 /* Pass the rest of this option to the preprocessor. */
4392 /* Split the argument at commas. */
4394 for (j
= 0; arg
[j
]; j
++)
4397 add_preprocessor_option (arg
+ prev
, j
- prev
);
4401 /* Record the part after the last comma. */
4402 add_preprocessor_option (arg
+ prev
, j
- prev
);
4410 /* Split the argument at commas. */
4412 for (j
= 0; arg
[j
]; j
++)
4415 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
4418 /* Record the part after the last comma. */
4419 add_infile (arg
+ prev
, "*");
4425 add_infile (arg
, "*");
4429 case OPT_Xpreprocessor
:
4430 add_preprocessor_option (arg
, strlen (arg
));
4434 case OPT_Xassembler
:
4435 add_assembler_option (arg
, strlen (arg
));
4440 /* POSIX allows separation of -l and the lib arg; canonicalize
4441 by concatenating -l with its arg */
4442 add_infile (concat ("-l", arg
, NULL
), "*");
4444 /* Forward to offloading compilation '-l[...]' flags for standard,
4445 well-known libraries. */
4446 /* Doing this processing here means that we don't get to see libraries
4447 injected via specs, such as '-lquadmath' injected via
4448 '[build]/[target]/libgfortran/libgfortran.spec'. However, this issue
4449 is not actually relevant for the current set of host/offloading
4451 if (ENABLE_OFFLOADING
)
4452 forward_offload_option (opt_index
, arg
, validated
);
4458 /* Similarly, canonicalize -L for linkers that may not accept
4459 separate arguments. */
4460 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
4465 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
4468 case OPT_save_temps
:
4469 if (!save_temps_flag
)
4470 save_temps_flag
= SAVE_TEMPS_DUMP
;
4474 case OPT_save_temps_
:
4475 if (strcmp (arg
, "cwd") == 0)
4476 save_temps_flag
= SAVE_TEMPS_CWD
;
4477 else if (strcmp (arg
, "obj") == 0
4478 || strcmp (arg
, "object") == 0)
4479 save_temps_flag
= SAVE_TEMPS_OBJ
;
4481 fatal_error (input_location
, "%qs is an unknown %<-save-temps%> option",
4482 decoded
->orig_option_with_args_text
);
4483 save_temps_overrides_dumpdir
= true;
4488 dumpdir
= xstrdup (arg
);
4489 save_temps_overrides_dumpdir
= false;
4494 dumpbase
= xstrdup (arg
);
4497 case OPT_dumpbase_ext
:
4498 free (dumpbase_ext
);
4499 dumpbase_ext
= xstrdup (arg
);
4502 case OPT_no_canonical_prefixes
:
4503 /* Already handled as a special case, so ignored here. */
4509 /* These options set the variables specified in common.opt
4510 automatically, but do need to be saved for spec
4516 struct user_specs
*user
= XNEW (struct user_specs
);
4518 user
->next
= (struct user_specs
*) 0;
4519 user
->filename
= arg
;
4520 if (user_specs_tail
)
4521 user_specs_tail
->next
= user
;
4523 user_specs_head
= user
;
4524 user_specs_tail
= user
;
4530 target_system_root
= arg
;
4531 target_system_root_changed
= 1;
4532 /* Saving this option is useful to let self-specs decide to
4533 provide a default one. */
4539 if (report_times_to_file
)
4540 fclose (report_times_to_file
);
4541 report_times_to_file
= fopen (arg
, "a");
4546 totruncate_file
= arg
;
4552 This is similar to -v except that there is no execution
4553 of the commands and the echoed arguments are quoted. It
4554 is intended for use in shell scripts to capture the
4555 driver-generated command line. */
4556 verbose_only_flag
++;
4563 size_t len
= strlen (arg
);
4565 /* Catch the case where the user has forgotten to append a
4566 directory separator to the path. Note, they may be using
4567 -B to add an executable name prefix, eg "i386-elf-", in
4568 order to distinguish between multiple installations of
4569 GCC in the same directory. Hence we must check to see
4570 if appending a directory separator actually makes a
4571 valid directory name. */
4572 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
4573 && is_directory (arg
, false))
4575 char *tmp
= XNEWVEC (char, len
+ 2);
4577 tmp
[len
] = DIR_SEPARATOR
;
4582 add_prefix (&exec_prefixes
, arg
, NULL
,
4583 PREFIX_PRIORITY_B_OPT
, 0, 0);
4584 add_prefix (&startfile_prefixes
, arg
, NULL
,
4585 PREFIX_PRIORITY_B_OPT
, 0, 0);
4586 add_prefix (&include_prefixes
, arg
, NULL
,
4587 PREFIX_PRIORITY_B_OPT
, 0, 0);
4598 if (!strcmp (spec_lang
, "none"))
4599 /* Suppress the warning if -xnone comes after the last input
4600 file, because alternate command interfaces like g++ might
4601 find it useful to place -xnone after each input file. */
4604 last_language_n_infiles
= n_infiles
;
4610 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4611 arg
= convert_filename (arg
, ! have_c
, 0);
4614 /* On some systems, ld cannot handle "-o" without a space. So
4615 split the option from its argument. */
4616 save_switch ("-o", 1, &arg
, validated
, true);
4620 #ifdef ENABLE_DEFAULT_PIE
4621 /* -pie is turned on by default. */
4628 any_link_options_p
= true;
4635 case OPT_static_libgcc
:
4636 case OPT_shared_libgcc
:
4637 case OPT_static_libgfortran
:
4638 case OPT_static_libquadmath
:
4639 case OPT_static_libphobos
:
4640 case OPT_static_libgm2
:
4641 case OPT_static_libstdc__
:
4642 /* These are always valid; gcc.cc itself understands the first two
4643 gfortranspec.cc understands -static-libgfortran,
4644 libgfortran.spec handles -static-libquadmath,
4645 d-spec.cc understands -static-libphobos,
4646 gm2spec.cc understands -static-libgm2,
4647 and g++spec.cc understands -static-libstdc++. */
4655 case OPT_foffload_options_
:
4656 check_foffload_target_names (arg
);
4660 handle_foffload_option (arg
);
4661 if (arg
[0] == '-' || NULL
!= strchr (arg
, '='))
4662 save_switch (concat ("-foffload-options=", arg
, NULL
),
4663 0, NULL
, validated
, true);
4668 add_infile ("--pdb=", "*");
4672 /* Various driver options need no special processing at this
4673 point, having been handled in a prescan above or being
4674 handled by specs. */
4679 save_switch (decoded
->canonical_option
[0],
4680 decoded
->canonical_option_num_elements
- 1,
4681 &decoded
->canonical_option
[1], validated
, true);
4685 /* Return true if F2 is F1 followed by a single suffix, i.e., by a
4686 period and additional characters other than a period. */
4689 adds_single_suffix_p (const char *f2
, const char *f1
)
4691 size_t len
= strlen (f1
);
4693 return (strncmp (f1
, f2
, len
) == 0
4695 && strchr (f2
+ len
+ 1, '.') == NULL
);
4698 /* Put the driver's standard set of option handlers in *HANDLERS. */
4701 set_option_handlers (struct cl_option_handlers
*handlers
)
4703 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
4704 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
4705 handlers
->num_handlers
= 3;
4706 handlers
->handlers
[0].handler
= driver_handle_option
;
4707 handlers
->handlers
[0].mask
= CL_DRIVER
;
4708 handlers
->handlers
[1].handler
= common_handle_option
;
4709 handlers
->handlers
[1].mask
= CL_COMMON
;
4710 handlers
->handlers
[2].handler
= target_handle_option
;
4711 handlers
->handlers
[2].mask
= CL_TARGET
;
4715 /* Return the index into infiles for the single non-library
4716 non-lto-wpa input file, -1 if there isn't any, or -2 if there is
4719 single_input_file_index ()
4723 for (int i
= 0; i
< n_infiles
; i
++)
4725 if (infiles
[i
].language
4726 && (infiles
[i
].language
[0] == '*'
4728 && strcmp (infiles
[i
].language
, "lto") == 0)))
4740 /* Create the vector `switches' and its contents.
4741 Store its length in `n_switches'. */
4744 process_command (unsigned int decoded_options_count
,
4745 struct cl_decoded_option
*decoded_options
)
4749 char *tooldir_prefix
, *tooldir_prefix2
;
4750 char *(*get_relative_prefix
) (const char *, const char *,
4751 const char *) = NULL
;
4752 struct cl_option_handlers handlers
;
4755 gcc_exec_prefix
= env
.get ("GCC_EXEC_PREFIX");
4759 added_libraries
= 0;
4761 /* Figure compiler version from version string. */
4763 compiler_version
= temp1
= xstrdup (version_string
);
4765 for (; *temp1
; ++temp1
)
4774 /* Handle any -no-canonical-prefixes flag early, to assign the function
4775 that builds relative prefixes. This function creates default search
4776 paths that are needed later in normal option handling. */
4778 for (j
= 1; j
< decoded_options_count
; j
++)
4780 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
4782 get_relative_prefix
= make_relative_prefix_ignore_links
;
4786 if (! get_relative_prefix
)
4787 get_relative_prefix
= make_relative_prefix
;
4789 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
4790 see if we can create it from the pathname specified in
4791 decoded_options[0].arg. */
4793 gcc_libexec_prefix
= standard_libexec_prefix
;
4795 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
4796 if (!gcc_exec_prefix
)
4798 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4799 standard_bindir_prefix
,
4800 standard_exec_prefix
);
4801 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4802 standard_bindir_prefix
,
4803 standard_libexec_prefix
);
4804 if (gcc_exec_prefix
)
4805 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
4809 /* make_relative_prefix requires a program name, but
4810 GCC_EXEC_PREFIX is typically a directory name with a trailing
4811 / (which is ignored by make_relative_prefix), so append a
4813 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
4814 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
4815 standard_exec_prefix
,
4816 standard_libexec_prefix
);
4818 /* The path is unrelocated, so fallback to the original setting. */
4819 if (!gcc_libexec_prefix
)
4820 gcc_libexec_prefix
= standard_libexec_prefix
;
4826 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
4827 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
4828 or an automatically created GCC_EXEC_PREFIX from
4829 decoded_options[0].arg. */
4831 /* Do language-specific adjustment/addition of flags. */
4832 lang_specific_driver (&decoded_options
, &decoded_options_count
,
4835 if (gcc_exec_prefix
)
4837 int len
= strlen (gcc_exec_prefix
);
4839 if (len
> (int) sizeof ("/lib/gcc/") - 1
4840 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
4842 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
4843 if (IS_DIR_SEPARATOR (*temp
)
4844 && filename_ncmp (temp
+ 1, "lib", 3) == 0
4845 && IS_DIR_SEPARATOR (temp
[4])
4846 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
4847 len
-= sizeof ("/lib/gcc/") - 1;
4850 set_std_prefix (gcc_exec_prefix
, len
);
4851 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
4852 PREFIX_PRIORITY_LAST
, 0, 0);
4853 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
4854 PREFIX_PRIORITY_LAST
, 0, 0);
4857 /* COMPILER_PATH and LIBRARY_PATH have values
4858 that are lists of directory names with colons. */
4860 temp
= env
.get ("COMPILER_PATH");
4863 const char *startp
, *endp
;
4864 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4866 startp
= endp
= temp
;
4869 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4871 strncpy (nstore
, startp
, endp
- startp
);
4873 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4874 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4876 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4877 nstore
[endp
- startp
+ 1] = 0;
4880 nstore
[endp
- startp
] = 0;
4881 add_prefix (&exec_prefixes
, nstore
, 0,
4882 PREFIX_PRIORITY_LAST
, 0, 0);
4883 add_prefix (&include_prefixes
, nstore
, 0,
4884 PREFIX_PRIORITY_LAST
, 0, 0);
4887 endp
= startp
= endp
+ 1;
4894 temp
= env
.get (LIBRARY_PATH_ENV
);
4895 if (temp
&& *cross_compile
== '0')
4897 const char *startp
, *endp
;
4898 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4900 startp
= endp
= temp
;
4903 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4905 strncpy (nstore
, startp
, endp
- startp
);
4907 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4908 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4910 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4911 nstore
[endp
- startp
+ 1] = 0;
4914 nstore
[endp
- startp
] = 0;
4915 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4916 PREFIX_PRIORITY_LAST
, 0, 1);
4919 endp
= startp
= endp
+ 1;
4926 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4927 temp
= env
.get ("LPATH");
4928 if (temp
&& *cross_compile
== '0')
4930 const char *startp
, *endp
;
4931 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4933 startp
= endp
= temp
;
4936 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4938 strncpy (nstore
, startp
, endp
- startp
);
4940 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4941 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4943 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4944 nstore
[endp
- startp
+ 1] = 0;
4947 nstore
[endp
- startp
] = 0;
4948 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4949 PREFIX_PRIORITY_LAST
, 0, 1);
4952 endp
= startp
= endp
+ 1;
4959 /* Process the options and store input files and switches in their
4962 last_language_n_infiles
= -1;
4964 set_option_handlers (&handlers
);
4966 for (j
= 1; j
< decoded_options_count
; j
++)
4968 switch (decoded_options
[j
].opt_index
)
4980 for (j
= 1; j
< decoded_options_count
; j
++)
4982 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4984 const char *arg
= decoded_options
[j
].arg
;
4986 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4987 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4989 add_infile (arg
, spec_lang
);
4994 read_cmdline_option (&global_options
, &global_options_set
,
4995 decoded_options
+ j
, UNKNOWN_LOCATION
,
4996 CL_DRIVER
, &handlers
, global_dc
);
4999 /* If the user didn't specify any, default to all configured offload
5001 if (ENABLE_OFFLOADING
&& offload_targets
== NULL
)
5003 handle_foffload_option (OFFLOAD_TARGETS
);
5004 #if OFFLOAD_DEFAULTED
5005 offload_targets_default
= true;
5009 /* TODO: check if -static -pie works and maybe use it. */
5012 if (!any_link_options_p
&& !static_p
)
5014 #if defined HAVE_LD_PIE && defined LD_PIE_SPEC
5015 save_switch (LD_PIE_SPEC
, 0, NULL
, /*validated=*/true, /*known=*/false);
5017 /* These are passed straight down to collect2 so we have to break
5019 if (HAVE_LD_NOW_SUPPORT
)
5021 add_infile ("-z", "*");
5022 add_infile ("now", "*");
5024 if (HAVE_LD_RELRO_SUPPORT
)
5026 add_infile ("-z", "*");
5027 add_infile ("relro", "*");
5030 /* We can't use OPT_Whardened yet. Sigh. */
5031 else if (warn_hardened
)
5032 warning_at (UNKNOWN_LOCATION
, 0,
5033 "linker hardening options not enabled by %<-fhardened%> "
5034 "because other link options were specified on the command "
5038 /* Handle -gtoggle as it would later in toplev.cc:process_options to
5039 make the debug-level-gt spec function work as expected. */
5042 if (debug_info_level
== DINFO_LEVEL_NONE
)
5043 debug_info_level
= DINFO_LEVEL_NORMAL
;
5045 debug_info_level
= DINFO_LEVEL_NONE
;
5049 && strcmp (output_file
, "-") != 0
5050 && strcmp (output_file
, HOST_BIT_BUCKET
) != 0)
5053 for (i
= 0; i
< n_infiles
; i
++)
5054 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
5055 && canonical_filename_eq (infiles
[i
].name
, output_file
))
5056 fatal_error (input_location
,
5057 "input file %qs is the same as output file",
5061 if (output_file
!= NULL
&& output_file
[0] == '\0')
5062 fatal_error (input_location
, "output filename may not be empty");
5064 /* -dumpdir and -save-temps=* both specify the location of aux/dump
5065 outputs; the one that appears last prevails. When compiling
5066 multiple sources, an explicit dumpbase (minus -ext) may be
5067 combined with an explicit or implicit dumpdir, whereas when
5068 linking, a specified or implied link output name (minus
5069 extension) may be combined with a prevailing -save-temps=* or an
5070 otherwise implied dumpdir, but not override a prevailing
5071 -dumpdir. Primary outputs (e.g., linker output when linking
5072 without -o, or .i, .s or .o outputs when processing multiple
5073 inputs with -E, -S or -c, respectively) are NOT affected by these
5074 -save-temps=/-dump* options, always landing in the current
5075 directory and with the same basename as the input when an output
5076 name is not given, but when they're intermediate outputs, they
5077 are named like other aux outputs, so the options affect their
5080 Here are some examples. There are several more in the
5081 documentation of -o and -dump*, and some quite exhaustive tests
5082 in gcc.misc-tests/outputs.exp.
5084 When compiling any number of sources, no -dump* nor
5085 -save-temps=*, all outputs in cwd without prefix:
5087 # gcc -c b.c -gsplit-dwarf
5088 -> cc1 [-dumpdir ./] -dumpbase b.c -dumpbase-ext .c # b.o b.dwo
5090 # gcc -c b.c d.c -gsplit-dwarf
5091 -> cc1 [-dumpdir ./] -dumpbase b.c -dumpbase-ext .c # b.o b.dwo
5092 && cc1 [-dumpdir ./] -dumpbase d.c -dumpbase-ext .c # d.o d.dwo
5094 When compiling and linking, no -dump* nor -save-temps=*, .o
5095 outputs are temporary, aux outputs land in the dir of the output,
5096 prefixed with the basename of the linker output:
5098 # gcc b.c d.c -o ab -gsplit-dwarf
5099 -> cc1 -dumpdir ab- -dumpbase b.c -dumpbase-ext .c # ab-b.dwo
5100 && cc1 -dumpdir ab- -dumpbase d.c -dumpbase-ext .c # ab-d.dwo
5103 # gcc b.c d.c [-o a.out] -gsplit-dwarf
5104 -> cc1 -dumpdir a- -dumpbase b.c -dumpbase-ext .c # a-b.dwo
5105 && cc1 -dumpdir a- -dumpbase d.c -dumpbase-ext .c # a-d.dwo
5106 && link ... [-o a.out]
5108 When compiling and linking, a prevailing -dumpdir fully overrides
5109 the prefix of aux outputs given by the output name:
5111 # gcc -dumpdir f b.c d.c -gsplit-dwarf [-o [dir/]whatever]
5112 -> cc1 -dumpdir f -dumpbase b.c -dumpbase-ext .c # fb.dwo
5113 && cc1 -dumpdir f -dumpbase d.c -dumpbase-ext .c # fd.dwo
5114 && link ... [-o whatever]
5116 When compiling multiple inputs, an explicit -dumpbase is combined
5117 with -dumpdir, affecting aux outputs, but not the .o outputs:
5119 # gcc -dumpdir f -dumpbase g- b.c d.c -gsplit-dwarf -c
5120 -> cc1 -dumpdir fg- -dumpbase b.c -dumpbase-ext .c # b.o fg-b.dwo
5121 && cc1 -dumpdir fg- -dumpbase d.c -dumpbase-ext .c # d.o fg-d.dwo
5123 When compiling and linking with -save-temps, the .o outputs that
5124 would have been temporary become aux outputs, so they get
5125 affected by -dump* flags:
5127 # gcc -dumpdir f -dumpbase g- -save-temps b.c d.c
5128 -> cc1 -dumpdir fg- -dumpbase b.c -dumpbase-ext .c # fg-b.o
5129 && cc1 -dumpdir fg- -dumpbase d.c -dumpbase-ext .c # fg-d.o
5132 If -save-temps=* prevails over -dumpdir, however, the explicit
5133 -dumpdir is discarded, as if it wasn't there. The basename of
5134 the implicit linker output, a.out or a.exe, becomes a- as the aux
5135 output prefix for all compilations:
5137 # gcc [-dumpdir f] -save-temps=cwd b.c d.c
5138 -> cc1 -dumpdir a- -dumpbase b.c -dumpbase-ext .c # a-b.o
5139 && cc1 -dumpdir a- -dumpbase d.c -dumpbase-ext .c # a-d.o
5142 A single -dumpbase, applying to multiple inputs, overrides the
5143 linker output name, implied or explicit, as the aux output prefix:
5145 # gcc [-dumpdir f] -dumpbase g- -save-temps=cwd b.c d.c
5146 -> cc1 -dumpdir g- -dumpbase b.c -dumpbase-ext .c # g-b.o
5147 && cc1 -dumpdir g- -dumpbase d.c -dumpbase-ext .c # g-d.o
5150 # gcc [-dumpdir f] -dumpbase g- -save-temps=cwd b.c d.c -o dir/h.out
5151 -> cc1 -dumpdir g- -dumpbase b.c -dumpbase-ext .c # g-b.o
5152 && cc1 -dumpdir g- -dumpbase d.c -dumpbase-ext .c # g-d.o
5153 && link -o dir/h.out
5155 Now, if the linker output is NOT overridden as a prefix, but
5156 -save-temps=* overrides implicit or explicit -dumpdir, the
5157 effective dump dir combines the dir selected by the -save-temps=*
5158 option with the basename of the specified or implied link output:
5160 # gcc [-dumpdir f] -save-temps=cwd b.c d.c -o dir/h.out
5161 -> cc1 -dumpdir h- -dumpbase b.c -dumpbase-ext .c # h-b.o
5162 && cc1 -dumpdir h- -dumpbase d.c -dumpbase-ext .c # h-d.o
5163 && link -o dir/h.out
5165 # gcc [-dumpdir f] -save-temps=obj b.c d.c -o dir/h.out
5166 -> cc1 -dumpdir dir/h- -dumpbase b.c -dumpbase-ext .c # dir/h-b.o
5167 && cc1 -dumpdir dir/h- -dumpbase d.c -dumpbase-ext .c # dir/h-d.o
5168 && link -o dir/h.out
5170 But then again, a single -dumpbase applying to multiple inputs
5171 gets used instead of the linker output basename in the combined
5174 # gcc [-dumpdir f] -dumpbase g- -save-temps=obj b.c d.c -o dir/h.out
5175 -> cc1 -dumpdir dir/g- -dumpbase b.c -dumpbase-ext .c # dir/g-b.o
5176 && cc1 -dumpdir dir/g- -dumpbase d.c -dumpbase-ext .c # dir/g-d.o
5177 && link -o dir/h.out
5179 With a single input being compiled, the output basename does NOT
5180 affect the dumpdir prefix.
5182 # gcc -save-temps=obj b.c -gsplit-dwarf -c -o dir/b.o
5183 -> cc1 -dumpdir dir/ -dumpbase b.c -dumpbase-ext .c # dir/b.o dir/b.dwo
5185 but when compiling and linking even a single file, it does:
5187 # gcc -save-temps=obj b.c -o dir/h.out
5188 -> cc1 -dumpdir dir/h- -dumpbase b.c -dumpbase-ext .c # dir/h-b.o
5190 unless an explicit -dumpdir prevails:
5192 # gcc -save-temps[=obj] -dumpdir g- b.c -o dir/h.out
5193 -> cc1 -dumpdir g- -dumpbase b.c -dumpbase-ext .c # g-b.o
5197 bool explicit_dumpdir
= dumpdir
;
5199 if ((!save_temps_overrides_dumpdir
&& explicit_dumpdir
)
5200 || (output_file
&& not_actual_file_p (output_file
)))
5205 /* If -save-temps=obj and -o name, create the prefix to use for %b.
5206 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
5207 else if (save_temps_flag
!= SAVE_TEMPS_CWD
&& output_file
!= NULL
)
5211 temp
= lbasename (output_file
);
5212 if (temp
!= output_file
)
5213 dumpdir
= xstrndup (output_file
,
5214 strlen (output_file
) - strlen (temp
));
5222 if (save_temps_flag
)
5223 save_temps_flag
= SAVE_TEMPS_DUMP
;
5225 /* If there is any pathname component in an explicit -dumpbase, it
5226 overrides dumpdir entirely, so discard it right away. Although
5227 the presence of an explicit -dumpdir matters for the driver, it
5228 shouldn't matter for other processes, that get all that's needed
5229 from the -dumpdir and -dumpbase always passed to them. */
5230 if (dumpdir
&& dumpbase
&& lbasename (dumpbase
) != dumpbase
)
5236 /* Check that dumpbase_ext matches the end of dumpbase, drop it
5238 if (dumpbase_ext
&& dumpbase
&& *dumpbase
)
5240 int lendb
= strlen (dumpbase
);
5241 int lendbx
= strlen (dumpbase_ext
);
5243 /* -dumpbase-ext must be a suffix proper; discard it if it
5244 matches all of -dumpbase, as that would make for an empty
5247 || strcmp (dumpbase
+ lendb
- lendbx
, dumpbase_ext
) != 0)
5249 free (dumpbase_ext
);
5250 dumpbase_ext
= NULL
;
5254 /* -dumpbase with multiple sources goes into dumpdir. With a single
5255 source, it does only if linking and if dumpdir was not explicitly
5257 if (dumpbase
&& *dumpbase
5258 && (single_input_file_index () == -2
5259 || (!have_c
&& !explicit_dumpdir
)))
5264 /* We checked that they match above. */
5265 dumpbase
[strlen (dumpbase
) - strlen (dumpbase_ext
)] = '\0';
5268 prefix
= concat (dumpdir
, dumpbase
, "-", NULL
);
5270 prefix
= concat (dumpbase
, "-", NULL
);
5274 free (dumpbase_ext
);
5275 dumpbase
= dumpbase_ext
= NULL
;
5277 dumpdir_trailing_dash_added
= true;
5280 /* If dumpbase was not brought into dumpdir but we're linking, bring
5281 output_file into dumpdir unless dumpdir was explicitly specified.
5282 The test for !explicit_dumpdir is further below, because we want
5283 to use the obase computation for a ghost outbase, passed to
5284 GCC_COLLECT_OPTIONS. */
5285 else if (!have_c
&& (!explicit_dumpdir
|| (dumpbase
&& !*dumpbase
)))
5287 /* If we get here, we know dumpbase was not specified, or it was
5288 specified as an empty string. If it was anything else, it
5289 would have combined with dumpdir above, because the condition
5290 for dumpbase to be used when present is broader than the
5291 condition that gets us here. */
5292 gcc_assert (!dumpbase
|| !*dumpbase
);
5295 char *tofree
= NULL
;
5296 if (!output_file
|| not_actual_file_p (output_file
))
5300 obase
= lbasename (output_file
);
5301 size_t blen
= strlen (obase
), xlen
;
5302 /* Drop the suffix if it's dumpbase_ext, if given,
5303 otherwise .exe or the target executable suffix, or if the
5304 output was explicitly named a.out, but not otherwise. */
5306 ? (blen
> (xlen
= strlen (dumpbase_ext
))
5307 && strcmp ((temp
= (obase
+ blen
- xlen
)),
5309 : ((temp
= strrchr (obase
+ 1, '.'))
5310 && (xlen
= strlen (temp
))
5311 && (strcmp (temp
, ".exe") == 0
5312 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
5313 || strcmp (temp
, TARGET_EXECUTABLE_SUFFIX
) == 0
5315 || strcmp (obase
, "a.out") == 0)))
5317 tofree
= xstrndup (obase
, blen
- xlen
);
5322 /* We wish to save this basename to the -dumpdir passed through
5323 GCC_COLLECT_OPTIONS within maybe_run_linker, for e.g. LTO,
5324 but we do NOT wish to add it to e.g. %b, so we keep
5325 outbase_length as zero. */
5326 gcc_assert (!outbase
);
5329 /* If we're building [dir1/]foo[.exe] out of a single input
5330 [dir2/]foo.c that shares the same basename, dump to
5331 [dir2/]foo.c.* rather than duplicating the basename into
5332 [dir2/]foo-foo.c.*. */
5335 || ((idxin
= single_input_file_index ()) >= 0
5336 && adds_single_suffix_p (lbasename (infiles
[idxin
].name
),
5339 if (obase
== tofree
)
5343 outbase
= xstrdup (obase
);
5346 obase
= tofree
= NULL
;
5352 char *p
= concat (dumpdir
, obase
, "-", NULL
);
5357 dumpdir
= concat (obase
, "-", NULL
);
5359 dumpdir_trailing_dash_added
= true;
5362 obase
= tofree
= NULL
;
5365 if (!explicit_dumpdir
|| dumpbase
)
5367 /* Absent -dumpbase and present -dumpbase-ext have been applied
5368 to the linker output name, so compute fresh defaults for each
5370 free (dumpbase_ext
);
5371 dumpbase_ext
= NULL
;
5375 /* Now, if we're compiling, or if we haven't used the dumpbase
5376 above, then outbase (%B) is derived from dumpbase, if given, or
5377 from the output name, given or implied. We can't precompute
5378 implied output names, but that's ok, since they're derived from
5379 input names. Just make sure we skip this if dumpbase is the
5380 empty string: we want to use input names then, so don't set
5382 if ((dumpbase
|| have_c
)
5383 && !(dumpbase
&& !*dumpbase
))
5385 gcc_assert (!outbase
);
5389 gcc_assert (single_input_file_index () != -2);
5390 /* We do not want lbasename here; dumpbase with dirnames
5391 overrides dumpdir entirely, even if dumpdir is
5394 /* We've already checked above that the suffix matches. */
5395 outbase
= xstrndup (dumpbase
,
5396 strlen (dumpbase
) - strlen (dumpbase_ext
));
5398 outbase
= xstrdup (dumpbase
);
5400 else if (output_file
&& !not_actual_file_p (output_file
))
5402 outbase
= xstrdup (lbasename (output_file
));
5403 char *p
= strrchr (outbase
+ 1, '.');
5409 outbase_length
= strlen (outbase
);
5412 /* If there is any pathname component in an explicit -dumpbase, do
5413 not use dumpdir, but retain it to pass it on to the compiler. */
5415 dumpdir_length
= strlen (dumpdir
);
5419 /* Check that dumpbase_ext, if still present, still matches the end
5420 of dumpbase, if present, and drop it otherwise. We only retained
5421 it above when dumpbase was absent to maybe use it to drop the
5422 extension from output_name before combining it with dumpdir. We
5423 won't deal with -dumpbase-ext when -dumpbase is not explicitly
5424 given, even if just to activate backward-compatible dumpbase:
5425 dropping it on the floor is correct, expected and documented
5426 behavior. Attempting to deal with a -dumpbase-ext that might
5427 match the end of some input filename, or of the combination of
5428 the output basename with the suffix of the input filename,
5429 possible with an intermediate .gk extension for -fcompare-debug,
5430 is just calling for trouble. */
5433 if (!dumpbase
|| !*dumpbase
)
5435 free (dumpbase_ext
);
5436 dumpbase_ext
= NULL
;
5439 gcc_assert (strcmp (dumpbase
+ strlen (dumpbase
)
5440 - strlen (dumpbase_ext
), dumpbase_ext
) == 0);
5443 if (save_temps_flag
&& use_pipes
)
5445 /* -save-temps overrides -pipe, so that temp files are produced */
5446 if (save_temps_flag
)
5447 warning (0, "%<-pipe%> ignored because %<-save-temps%> specified");
5453 const char *gcd
= env
.get ("GCC_COMPARE_DEBUG");
5455 if (gcd
&& gcd
[0] == '-')
5458 compare_debug_opt
= gcd
;
5460 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
5463 compare_debug_opt
= "-gtoggle";
5466 else if (compare_debug
< 0)
5469 gcc_assert (!compare_debug_opt
);
5472 /* Set up the search paths. We add directories that we expect to
5473 contain GNU Toolchain components before directories specified by
5474 the machine description so that we will find GNU components (like
5475 the GNU assembler) before those of the host system. */
5477 /* If we don't know where the toolchain has been installed, use the
5478 configured-in locations. */
5479 if (!gcc_exec_prefix
)
5482 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
5483 PREFIX_PRIORITY_LAST
, 1, 0);
5484 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
5485 PREFIX_PRIORITY_LAST
, 2, 0);
5486 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
5487 PREFIX_PRIORITY_LAST
, 2, 0);
5489 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
5490 PREFIX_PRIORITY_LAST
, 1, 0);
5493 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
5494 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
5495 dir_separator_str
, NULL
);
5497 /* Look for tools relative to the location from which the driver is
5498 running, or, if that is not available, the configured prefix. */
5500 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
5501 spec_host_machine
, dir_separator_str
, spec_version
,
5502 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
5503 free (tooldir_prefix2
);
5505 add_prefix (&exec_prefixes
,
5506 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
5507 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
5508 add_prefix (&startfile_prefixes
,
5509 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
5510 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
5511 free (tooldir_prefix
);
5513 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
5514 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
5515 then consider it to relocate with the rest of the GCC installation
5516 if GCC_EXEC_PREFIX is set.
5517 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
5518 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
5520 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
5521 standard_bindir_prefix
,
5522 target_system_root
);
5523 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
5525 target_system_root
= tmp_prefix
;
5526 target_system_root_changed
= 1;
5531 /* More prefixes are enabled in main, after we read the specs file
5532 and determine whether this is cross-compilation or not. */
5534 if (n_infiles
!= 0 && n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
5535 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
5537 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
5538 environment variable. */
5539 if (compare_debug
== 2 || compare_debug
== 3)
5541 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
5542 save_switch (opt
, 0, NULL
, false, true);
5546 /* Ensure we only invoke each subprocess once. */
5548 && (print_subprocess_help
|| print_help_list
|| print_version
))
5550 /* Create a dummy input file, so that we can pass
5551 the help option on to the various sub-processes. */
5552 add_infile ("help-dummy", "c");
5555 /* Decide if undefined variable references are allowed in specs. */
5557 /* -v alone is safe. --version and --help alone or together are safe. Note
5558 that -v would make them unsafe, as they'd then be run for subprocesses as
5559 well, the location of which might depend on variables possibly coming
5560 from self-specs. Note also that the command name is counted in
5561 decoded_options_count. */
5563 unsigned help_version_count
= 0;
5566 help_version_count
++;
5568 if (print_help_list
)
5569 help_version_count
++;
5571 spec_undefvar_allowed
=
5572 ((verbose_flag
&& decoded_options_count
== 2)
5573 || help_version_count
== decoded_options_count
- 1);
5576 switches
[n_switches
].part1
= 0;
5578 infiles
[n_infiles
].name
= 0;
5581 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
5582 and place that in the environment. */
5585 set_collect_gcc_options (void)
5590 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5592 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
5593 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5596 for (i
= 0; (int) i
< n_switches
; i
++)
5598 const char *const *args
;
5601 obstack_grow (&collect_obstack
, " ", 1);
5605 /* Ignore elided switches. */
5606 if ((switches
[i
].live_cond
5607 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
5611 obstack_grow (&collect_obstack
, "'-", 2);
5612 q
= switches
[i
].part1
;
5613 while ((p
= strchr (q
, '\'')))
5615 obstack_grow (&collect_obstack
, q
, p
- q
);
5616 obstack_grow (&collect_obstack
, "'\\''", 4);
5619 obstack_grow (&collect_obstack
, q
, strlen (q
));
5620 obstack_grow (&collect_obstack
, "'", 1);
5622 for (args
= switches
[i
].args
; args
&& *args
; args
++)
5624 obstack_grow (&collect_obstack
, " '", 2);
5626 while ((p
= strchr (q
, '\'')))
5628 obstack_grow (&collect_obstack
, q
, p
- q
);
5629 obstack_grow (&collect_obstack
, "'\\''", 4);
5632 obstack_grow (&collect_obstack
, q
, strlen (q
));
5633 obstack_grow (&collect_obstack
, "'", 1);
5640 obstack_grow (&collect_obstack
, " ", 1);
5643 obstack_grow (&collect_obstack
, "'-dumpdir' '", 12);
5647 while ((p
= strchr (q
, '\'')))
5649 obstack_grow (&collect_obstack
, q
, p
- q
);
5650 obstack_grow (&collect_obstack
, "'\\''", 4);
5653 obstack_grow (&collect_obstack
, q
, strlen (q
));
5655 obstack_grow (&collect_obstack
, "'", 1);
5658 obstack_grow (&collect_obstack
, "\0", 1);
5659 xputenv (XOBFINISH (&collect_obstack
, char *));
5662 /* Process a spec string, accumulating and running commands. */
5664 /* These variables describe the input file name.
5665 input_file_number is the index on outfiles of this file,
5666 so that the output file name can be stored for later use by %o.
5667 input_basename is the start of the part of the input file
5668 sans all directory names, and basename_length is the number
5669 of characters starting there excluding the suffix .c or whatever. */
5671 static const char *gcc_input_filename
;
5672 static int input_file_number
;
5673 size_t input_filename_length
;
5674 static int basename_length
;
5675 static int suffixed_basename_length
;
5676 static const char *input_basename
;
5677 static const char *input_suffix
;
5678 #ifndef HOST_LACKS_INODE_NUMBERS
5679 static struct stat input_stat
;
5681 static int input_stat_set
;
5683 /* The compiler used to process the current input file. */
5684 static struct compiler
*input_file_compiler
;
5686 /* These are variables used within do_spec and do_spec_1. */
5688 /* Nonzero if an arg has been started and not yet terminated
5689 (with space, tab or newline). */
5690 static int arg_going
;
5692 /* Nonzero means %d or %g has been seen; the next arg to be terminated
5693 is a temporary file name. */
5694 static int delete_this_arg
;
5696 /* Nonzero means %w has been seen; the next arg to be terminated
5697 is the output file name of this compilation. */
5698 static int this_is_output_file
;
5700 /* Nonzero means %s has been seen; the next arg to be terminated
5701 is the name of a library file and we should try the standard
5702 search dirs for it. */
5703 static int this_is_library_file
;
5705 /* Nonzero means %T has been seen; the next arg to be terminated
5706 is the name of a linker script and we should try all of the
5707 standard search dirs for it. If it is found insert a --script
5708 command line switch and then substitute the full path in place,
5709 otherwise generate an error message. */
5710 static int this_is_linker_script
;
5712 /* Nonzero means that the input of this command is coming from a pipe. */
5713 static int input_from_pipe
;
5715 /* Nonnull means substitute this for any suffix when outputting a switches
5717 static const char *suffix_subst
;
5719 /* If there is an argument being accumulated, terminate it and store it. */
5722 end_going_arg (void)
5728 obstack_1grow (&obstack
, 0);
5729 string
= XOBFINISH (&obstack
, const char *);
5730 if (this_is_library_file
)
5731 string
= find_file (string
);
5732 if (this_is_linker_script
)
5734 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
5736 if (full_script_path
== NULL
)
5738 error ("unable to locate default linker script %qs in the library search paths", string
);
5739 /* Script was not found on search path. */
5742 store_arg ("--script", false, false);
5743 string
= full_script_path
;
5745 store_arg (string
, delete_this_arg
, this_is_output_file
);
5746 if (this_is_output_file
)
5747 outfiles
[input_file_number
] = string
;
5753 /* Parse the WRAPPER string which is a comma separated list of the command line
5754 and insert them into the beginning of argbuf. */
5757 insert_wrapper (const char *wrapper
)
5761 char *buf
= xstrdup (wrapper
);
5763 unsigned int old_length
= argbuf
.length ();
5771 while ((p
= strchr (p
, ',')) != NULL
);
5773 argbuf
.safe_grow (old_length
+ n
, true);
5774 memmove (argbuf
.address () + n
,
5776 old_length
* sizeof (const_char_p
));
5790 while ((p
= strchr (p
, ',')) != NULL
);
5791 gcc_assert (i
== n
);
5794 /* Process the spec SPEC and run the commands specified therein.
5795 Returns 0 if the spec is successfully processed; -1 if failed. */
5798 do_spec (const char *spec
)
5802 value
= do_spec_2 (spec
, NULL
);
5804 /* Force out any unfinished command.
5805 If -pipe, this forces out the last command if it ended in `|'. */
5808 if (argbuf
.length () > 0
5809 && !strcmp (argbuf
.last (), "|"))
5812 set_collect_gcc_options ();
5814 if (argbuf
.length () > 0)
5821 /* Process the spec SPEC, with SOFT_MATCHED_PART designating the current value
5822 of a matched * pattern which may be re-injected by way of %*. */
5825 do_spec_2 (const char *spec
, const char *soft_matched_part
)
5831 delete_this_arg
= 0;
5832 this_is_output_file
= 0;
5833 this_is_library_file
= 0;
5834 this_is_linker_script
= 0;
5835 input_from_pipe
= 0;
5836 suffix_subst
= NULL
;
5838 result
= do_spec_1 (spec
, 0, soft_matched_part
);
5845 /* Process the given spec string and add any new options to the end
5846 of the switches/n_switches array. */
5849 do_option_spec (const char *name
, const char *spec
)
5851 unsigned int i
, value_count
, value_len
;
5852 const char *p
, *q
, *value
;
5853 char *tmp_spec
, *tmp_spec_p
;
5855 if (configure_default_options
[0].name
== NULL
)
5858 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
5859 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
5861 if (i
== ARRAY_SIZE (configure_default_options
))
5864 value
= configure_default_options
[i
].value
;
5865 value_len
= strlen (value
);
5867 /* Compute the size of the final spec. */
5870 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
5876 /* Replace each %(VALUE) by the specified value. */
5877 tmp_spec
= (char *) alloca (strlen (spec
) + 1
5878 + value_count
* (value_len
- strlen ("%(VALUE)")));
5879 tmp_spec_p
= tmp_spec
;
5881 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
5883 memcpy (tmp_spec_p
, q
, p
- q
);
5884 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
5885 memcpy (tmp_spec_p
, value
, value_len
);
5886 tmp_spec_p
+= value_len
;
5887 q
= p
+ strlen ("%(VALUE)");
5889 strcpy (tmp_spec_p
, q
);
5891 do_self_spec (tmp_spec
);
5894 /* Process the given spec string and add any new options to the end
5895 of the switches/n_switches array. */
5898 do_self_spec (const char *spec
)
5902 do_spec_2 (spec
, NULL
);
5903 do_spec_1 (" ", 0, NULL
);
5905 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
5906 do_self_specs adds the replacements to switches array, so it shouldn't
5907 be processed afterwards. */
5908 for (i
= 0; i
< n_switches
; i
++)
5909 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
5910 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
5912 if (argbuf
.length () > 0)
5914 const char **argbuf_copy
;
5915 struct cl_decoded_option
*decoded_options
;
5916 struct cl_option_handlers handlers
;
5917 unsigned int decoded_options_count
;
5920 /* Create a copy of argbuf with a dummy argv[0] entry for
5921 decode_cmdline_options_to_array. */
5922 argbuf_copy
= XNEWVEC (const char *,
5923 argbuf
.length () + 1);
5924 argbuf_copy
[0] = "";
5925 memcpy (argbuf_copy
+ 1, argbuf
.address (),
5926 argbuf
.length () * sizeof (const char *));
5928 decode_cmdline_options_to_array (argbuf
.length () + 1,
5930 CL_DRIVER
, &decoded_options
,
5931 &decoded_options_count
);
5934 set_option_handlers (&handlers
);
5936 for (j
= 1; j
< decoded_options_count
; j
++)
5938 switch (decoded_options
[j
].opt_index
)
5940 case OPT_SPECIAL_input_file
:
5941 /* Specs should only generate options, not input
5943 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
5944 fatal_error (input_location
,
5945 "switch %qs does not start with %<-%>",
5946 decoded_options
[j
].arg
);
5948 fatal_error (input_location
,
5949 "spec-generated switch is just %<-%>");
5952 case OPT_fcompare_debug_second
:
5953 case OPT_fcompare_debug
:
5954 case OPT_fcompare_debug_
:
5956 /* Avoid duplicate processing of some options from
5957 compare-debug specs; just save them here. */
5958 save_switch (decoded_options
[j
].canonical_option
[0],
5959 (decoded_options
[j
].canonical_option_num_elements
5961 &decoded_options
[j
].canonical_option
[1], false, true);
5965 read_cmdline_option (&global_options
, &global_options_set
,
5966 decoded_options
+ j
, UNKNOWN_LOCATION
,
5967 CL_DRIVER
, &handlers
, global_dc
);
5972 free (decoded_options
);
5975 switches
[n_switches
].part1
= 0;
5979 /* Callback for processing %D and %I specs. */
5981 struct spec_path_info
{
5986 bool separate_options
;
5991 spec_path (char *path
, void *data
)
5993 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
5997 /* The path must exist; we want to resolve it to the realpath so that this
5998 can be embedded as a runpath. */
5999 if (info
->realpaths
)
6000 path
= lrealpath (path
);
6002 /* However, if we failed to resolve it - perhaps because there was a bogus
6003 -B option on the command line, then punt on this entry. */
6007 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
6010 if (info
->append_len
!= 0)
6012 len
= strlen (path
);
6013 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
6016 if (!is_directory (path
, true))
6019 do_spec_1 (info
->option
, 1, NULL
);
6020 if (info
->separate_options
)
6021 do_spec_1 (" ", 0, NULL
);
6023 if (info
->append_len
== 0)
6025 len
= strlen (path
);
6026 save
= path
[len
- 1];
6027 if (IS_DIR_SEPARATOR (path
[len
- 1]))
6028 path
[len
- 1] = '\0';
6031 do_spec_1 (path
, 1, NULL
);
6032 do_spec_1 (" ", 0, NULL
);
6034 /* Must not damage the original path. */
6035 if (info
->append_len
== 0)
6036 path
[len
- 1] = save
;
6041 /* True if we should compile INFILE. */
6044 compile_input_file_p (struct infile
*infile
)
6046 if ((!infile
->language
) || (infile
->language
[0] != '*'))
6047 if (infile
->incompiler
== input_file_compiler
)
6052 /* Process each member of VEC as a spec. */
6055 do_specs_vec (vec
<char_p
> vec
)
6057 for (char *opt
: vec
)
6059 do_spec_1 (opt
, 1, NULL
);
6060 /* Make each accumulated option a separate argument. */
6061 do_spec_1 (" ", 0, NULL
);
6065 /* Add options passed via -Xassembler or -Wa to COLLECT_AS_OPTIONS. */
6068 putenv_COLLECT_AS_OPTIONS (vec
<char_p
> vec
)
6070 if (vec
.is_empty ())
6073 obstack_init (&collect_obstack
);
6074 obstack_grow (&collect_obstack
, "COLLECT_AS_OPTIONS=",
6075 strlen ("COLLECT_AS_OPTIONS="));
6080 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
6082 obstack_1grow (&collect_obstack
, '\'');
6083 obstack_grow (&collect_obstack
, opt
, strlen (opt
));
6084 obstack_1grow (&collect_obstack
, '\'');
6085 if (ix
< vec
.length () - 1)
6086 obstack_1grow(&collect_obstack
, ' ');
6089 obstack_1grow (&collect_obstack
, '\0');
6090 xputenv (XOBFINISH (&collect_obstack
, char *));
6093 /* Process the sub-spec SPEC as a portion of a larger spec.
6094 This is like processing a whole spec except that we do
6095 not initialize at the beginning and we do not supply a
6096 newline by default at the end.
6097 INSWITCH nonzero means don't process %-sequences in SPEC;
6098 in this case, % is treated as an ordinary character.
6099 This is used while substituting switches.
6100 INSWITCH nonzero also causes SPC not to terminate an argument.
6102 Value is zero unless a line was finished
6103 and the command on that line reported an error. */
6106 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
6108 const char *p
= spec
;
6113 /* If it's an empty string argument to a switch, keep it as is. */
6114 if (inswitch
&& !*p
)
6118 /* If substituting a switch, treat all chars like letters.
6119 Otherwise, NL, SPC, TAB and % are special. */
6120 switch (inswitch
? 'a' : c
)
6125 if (argbuf
.length () > 0
6126 && !strcmp (argbuf
.last (), "|"))
6128 /* A `|' before the newline means use a pipe here,
6129 but only if -pipe was specified.
6130 Otherwise, execute now and don't pass the `|' as an arg. */
6133 input_from_pipe
= 1;
6140 set_collect_gcc_options ();
6142 if (argbuf
.length () > 0)
6148 /* Reinitialize for a new command, and for a new argument. */
6151 delete_this_arg
= 0;
6152 this_is_output_file
= 0;
6153 this_is_library_file
= 0;
6154 this_is_linker_script
= 0;
6155 input_from_pipe
= 0;
6162 obstack_1grow (&obstack
, c
);
6170 /* Reinitialize for a new argument. */
6171 delete_this_arg
= 0;
6172 this_is_output_file
= 0;
6173 this_is_library_file
= 0;
6174 this_is_linker_script
= 0;
6181 fatal_error (input_location
, "spec %qs invalid", spec
);
6184 /* Don't use %b in the linker command. */
6185 gcc_assert (suffixed_basename_length
);
6186 if (!this_is_output_file
&& dumpdir_length
)
6187 obstack_grow (&obstack
, dumpdir
, dumpdir_length
);
6188 if (this_is_output_file
|| !outbase_length
)
6189 obstack_grow (&obstack
, input_basename
, basename_length
);
6191 obstack_grow (&obstack
, outbase
, outbase_length
);
6192 if (compare_debug
< 0)
6193 obstack_grow (&obstack
, ".gk", 3);
6198 /* Don't use %B in the linker command. */
6199 gcc_assert (suffixed_basename_length
);
6200 if (!this_is_output_file
&& dumpdir_length
)
6201 obstack_grow (&obstack
, dumpdir
, dumpdir_length
);
6202 if (this_is_output_file
|| !outbase_length
)
6203 obstack_grow (&obstack
, input_basename
, basename_length
);
6205 obstack_grow (&obstack
, outbase
, outbase_length
);
6206 if (compare_debug
< 0)
6207 obstack_grow (&obstack
, ".gk", 3);
6208 obstack_grow (&obstack
, input_basename
+ basename_length
,
6209 suffixed_basename_length
- basename_length
);
6215 delete_this_arg
= 2;
6218 /* Dump out the directories specified with LIBRARY_PATH,
6219 followed by the absolute directories
6220 that we search for startfiles. */
6223 struct spec_path_info info
;
6226 info
.append_len
= 0;
6227 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
6228 /* Used on systems which record the specified -L dirs
6229 and use them to search for dynamic linking.
6230 Relative directories always come from -B,
6231 and it is better not to use them for searching
6232 at run time. In particular, stage1 loses. */
6233 info
.omit_relative
= true;
6235 info
.omit_relative
= false;
6237 info
.separate_options
= false;
6238 info
.realpaths
= false;
6240 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
6246 struct spec_path_info info
;
6248 info
.option
= RUNPATH_OPTION
;
6249 info
.append_len
= 0;
6250 info
.omit_relative
= false;
6251 info
.separate_options
= true;
6252 /* We want to embed the actual paths that have the libraries. */
6253 info
.realpaths
= true;
6255 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
6260 /* %efoo means report an error with `foo' as error message
6261 and don't execute any more commands for this file. */
6265 while (*p
!= 0 && *p
!= '\n')
6267 buf
= (char *) alloca (p
- q
+ 1);
6268 strncpy (buf
, q
, p
- q
);
6270 error ("%s", _(buf
));
6275 /* %nfoo means report a notice with `foo' on stderr. */
6279 while (*p
!= 0 && *p
!= '\n')
6281 buf
= (char *) alloca (p
- q
+ 1);
6282 strncpy (buf
, q
, p
- q
);
6284 inform (UNKNOWN_LOCATION
, "%s", _(buf
));
6294 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
6295 defined, and it is not a directory, and it is
6296 writable, use it. Otherwise, treat this like any
6297 other temporary file. */
6299 if ((!save_temps_flag
)
6300 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
6301 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
6303 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
6304 strlen (HOST_BIT_BUCKET
));
6305 delete_this_arg
= 0;
6310 goto create_temp_file
;
6314 obstack_1grow (&obstack
, '-');
6315 delete_this_arg
= 0;
6318 /* consume suffix */
6319 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
6321 if (p
[0] == '%' && p
[1] == 'O')
6326 goto create_temp_file
;
6330 /* consume suffix */
6331 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
6333 if (p
[0] == '%' && p
[1] == 'O')
6338 goto create_temp_file
;
6344 struct temp_name
*t
;
6346 const char *suffix
= p
;
6347 char *saved_suffix
= NULL
;
6349 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
6351 suffix_length
= p
- suffix
;
6352 if (p
[0] == '%' && p
[1] == 'O')
6355 /* We don't support extra suffix characters after %O. */
6356 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
6357 fatal_error (input_location
,
6358 "spec %qs has invalid %<%%0%c%>", spec
, *p
);
6359 if (suffix_length
== 0)
6360 suffix
= TARGET_OBJECT_SUFFIX
;
6364 = XNEWVEC (char, suffix_length
6365 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
6366 strncpy (saved_suffix
, suffix
, suffix_length
);
6367 strcpy (saved_suffix
+ suffix_length
,
6368 TARGET_OBJECT_SUFFIX
);
6370 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
6373 if (compare_debug
< 0)
6375 suffix
= concat (".gk", suffix
, NULL
);
6379 /* If -save-temps was specified, use that for the
6381 if (save_temps_flag
)
6384 bool adjusted_suffix
= false;
6386 && !outbase_length
&& !basename_length
6387 && !dumpdir_trailing_dash_added
)
6389 adjusted_suffix
= true;
6393 temp_filename_length
6394 = dumpdir_length
+ suffix_length
+ 1;
6396 temp_filename_length
+= outbase_length
;
6398 temp_filename_length
+= basename_length
;
6399 tmp
= (char *) alloca (temp_filename_length
);
6401 memcpy (tmp
, dumpdir
, dumpdir_length
);
6403 memcpy (tmp
+ dumpdir_length
, outbase
,
6405 else if (basename_length
)
6406 memcpy (tmp
+ dumpdir_length
, input_basename
,
6408 memcpy (tmp
+ temp_filename_length
- suffix_length
- 1,
6409 suffix
, suffix_length
);
6410 if (adjusted_suffix
)
6412 adjusted_suffix
= false;
6416 tmp
[temp_filename_length
- 1] = '\0';
6417 temp_filename
= tmp
;
6419 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
6421 #ifndef HOST_LACKS_INODE_NUMBERS
6422 struct stat st_temp
;
6424 /* Note, set_input() resets input_stat_set to 0. */
6425 if (input_stat_set
== 0)
6427 input_stat_set
= stat (gcc_input_filename
,
6429 if (input_stat_set
>= 0)
6433 /* If we have the stat for the gcc_input_filename
6434 and we can do the stat for the temp_filename
6435 then the they could still refer to the same
6436 file if st_dev/st_ino's are the same. */
6437 if (input_stat_set
!= 1
6438 || stat (temp_filename
, &st_temp
) < 0
6439 || input_stat
.st_dev
!= st_temp
.st_dev
6440 || input_stat
.st_ino
!= st_temp
.st_ino
)
6442 /* Just compare canonical pathnames. */
6443 char* input_realname
= lrealpath (gcc_input_filename
);
6444 char* temp_realname
= lrealpath (temp_filename
);
6445 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
6446 free (input_realname
);
6447 free (temp_realname
);
6452 = save_string (temp_filename
,
6453 temp_filename_length
- 1);
6454 obstack_grow (&obstack
, temp_filename
,
6455 temp_filename_length
);
6457 delete_this_arg
= 0;
6463 /* See if we already have an association of %g/%u/%U and
6465 for (t
= temp_names
; t
; t
= t
->next
)
6466 if (t
->length
== suffix_length
6467 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
6468 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
6471 /* Make a new association if needed. %u and %j
6473 if (t
== 0 || c
== 'u' || c
== 'j')
6477 t
= XNEW (struct temp_name
);
6478 t
->next
= temp_names
;
6481 t
->length
= suffix_length
;
6484 t
->suffix
= saved_suffix
;
6485 saved_suffix
= NULL
;
6488 t
->suffix
= save_string (suffix
, suffix_length
);
6489 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
6490 temp_filename
= make_temp_file (t
->suffix
);
6491 temp_filename_length
= strlen (temp_filename
);
6492 t
->filename
= temp_filename
;
6493 t
->filename_length
= temp_filename_length
;
6496 free (saved_suffix
);
6498 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
6499 delete_this_arg
= 1;
6507 /* We are going to expand `%i' into `@FILE', where FILE
6508 is a newly-created temporary filename. The filenames
6509 that would usually be expanded in place of %o will be
6510 written to the temporary file. */
6511 if (at_file_supplied
)
6514 for (i
= 0; (int) i
< n_infiles
; i
++)
6515 if (compile_input_file_p (&infiles
[i
]))
6517 store_arg (infiles
[i
].name
, 0, 0);
6518 infiles
[i
].compiled
= true;
6521 if (at_file_supplied
)
6526 obstack_grow (&obstack
, gcc_input_filename
,
6527 input_filename_length
);
6534 struct spec_path_info info
;
6538 do_spec_1 ("-imultilib", 1, NULL
);
6539 /* Make this a separate argument. */
6540 do_spec_1 (" ", 0, NULL
);
6541 do_spec_1 (multilib_dir
, 1, NULL
);
6542 do_spec_1 (" ", 0, NULL
);
6547 do_spec_1 ("-imultiarch", 1, NULL
);
6548 /* Make this a separate argument. */
6549 do_spec_1 (" ", 0, NULL
);
6550 do_spec_1 (multiarch_dir
, 1, NULL
);
6551 do_spec_1 (" ", 0, NULL
);
6554 if (gcc_exec_prefix
)
6556 do_spec_1 ("-iprefix", 1, NULL
);
6557 /* Make this a separate argument. */
6558 do_spec_1 (" ", 0, NULL
);
6559 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
6560 do_spec_1 (" ", 0, NULL
);
6563 if (target_system_root_changed
||
6564 (target_system_root
&& target_sysroot_hdrs_suffix
))
6566 do_spec_1 ("-isysroot", 1, NULL
);
6567 /* Make this a separate argument. */
6568 do_spec_1 (" ", 0, NULL
);
6569 do_spec_1 (target_system_root
, 1, NULL
);
6570 if (target_sysroot_hdrs_suffix
)
6571 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
6572 do_spec_1 (" ", 0, NULL
);
6575 info
.option
= "-isystem";
6576 info
.append
= "include";
6577 info
.append_len
= strlen (info
.append
);
6578 info
.omit_relative
= false;
6579 info
.separate_options
= true;
6580 info
.realpaths
= false;
6582 for_each_path (&include_prefixes
, false, info
.append_len
,
6585 info
.append
= "include-fixed";
6586 if (*sysroot_hdrs_suffix_spec
)
6587 info
.append
= concat (info
.append
, dir_separator_str
,
6588 multilib_dir
, NULL
);
6589 else if (multiarch_dir
)
6591 /* For multiarch, search include-fixed/<multiarch-dir>
6592 before include-fixed. */
6593 info
.append
= concat (info
.append
, dir_separator_str
,
6594 multiarch_dir
, NULL
);
6595 info
.append_len
= strlen (info
.append
);
6596 for_each_path (&include_prefixes
, false, info
.append_len
,
6599 info
.append
= "include-fixed";
6601 info
.append_len
= strlen (info
.append
);
6602 for_each_path (&include_prefixes
, false, info
.append_len
,
6608 /* We are going to expand `%o' into `@FILE', where FILE
6609 is a newly-created temporary filename. The filenames
6610 that would usually be expanded in place of %o will be
6611 written to the temporary file. */
6612 if (at_file_supplied
)
6615 for (i
= 0; i
< n_infiles
+ lang_specific_extra_outfiles
; i
++)
6617 store_arg (outfiles
[i
], 0, 0);
6619 if (at_file_supplied
)
6624 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
6629 this_is_library_file
= 1;
6633 this_is_linker_script
= 1;
6637 outfiles
[input_file_number
] = NULL
;
6641 this_is_output_file
= 1;
6646 unsigned int cur_index
= argbuf
.length ();
6647 /* Handle the {...} following the %W. */
6649 fatal_error (input_location
,
6650 "spec %qs has invalid %<%%W%c%>", spec
, *p
);
6651 p
= handle_braces (p
+ 1);
6655 /* If any args were output, mark the last one for deletion
6657 if (argbuf
.length () != cur_index
)
6658 record_temp_file (argbuf
.last (), 0, 1);
6663 /* Handle the {...} following the %@. */
6665 fatal_error (input_location
,
6666 "spec %qs has invalid %<%%@%c%>", spec
, *p
);
6667 if (at_file_supplied
)
6669 p
= handle_braces (p
+ 1);
6670 if (at_file_supplied
)
6676 /* %x{OPTION} records OPTION for %X to output. */
6682 /* Skip past the option value and make a copy. */
6684 fatal_error (input_location
,
6685 "spec %qs has invalid %<%%x%c%>", spec
, *p
);
6688 string
= save_string (p1
+ 1, p
- p1
- 2);
6690 /* See if we already recorded this option. */
6691 for (const char *opt
: linker_options
)
6692 if (! strcmp (string
, opt
))
6698 /* This option is new; add it. */
6699 add_linker_option (string
, strlen (string
));
6704 /* Dump out the options accumulated previously using %x. */
6706 do_specs_vec (linker_options
);
6709 /* Dump out the options accumulated previously using -Wa,. */
6711 do_specs_vec (assembler_options
);
6714 /* Dump out the options accumulated previously using -Wp,. */
6716 do_specs_vec (preprocessor_options
);
6719 /* Here are digits and numbers that just process
6720 a certain constant string as a spec. */
6723 value
= do_spec_1 (cc1_spec
, 0, NULL
);
6729 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
6735 value
= do_spec_1 (asm_spec
, 0, NULL
);
6741 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
6748 const char *const spec
6749 = (input_file_compiler
->cpp_spec
6750 ? input_file_compiler
->cpp_spec
6752 value
= do_spec_1 (spec
, 0, NULL
);
6759 value
= do_spec_1 (endfile_spec
, 0, NULL
);
6765 value
= do_spec_1 (link_spec
, 0, NULL
);
6771 value
= do_spec_1 (lib_spec
, 0, NULL
);
6777 if (multilib_os_dir
== NULL
)
6778 obstack_1grow (&obstack
, '.');
6780 obstack_grow (&obstack
, multilib_os_dir
,
6781 strlen (multilib_os_dir
));
6785 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
6791 /* We assume there is a directory
6792 separator at the end of this string. */
6793 if (target_system_root
)
6795 obstack_grow (&obstack
, target_system_root
,
6796 strlen (target_system_root
));
6797 if (target_sysroot_suffix
)
6798 obstack_grow (&obstack
, target_sysroot_suffix
,
6799 strlen (target_sysroot_suffix
));
6804 value
= do_spec_1 (startfile_spec
, 0, NULL
);
6809 /* Here we define characters other than letters and digits. */
6812 p
= handle_braces (p
);
6818 p
= handle_spec_function (p
, NULL
, soft_matched_part
);
6824 obstack_1grow (&obstack
, '%');
6831 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
6833 suffix_subst
= save_string (p
- 1, len
+ 1);
6838 /* Henceforth ignore the option(s) matching the pattern
6844 int have_wildcard
= 0;
6849 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
6851 switch_option
= SWITCH_IGNORE
;
6853 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
6856 if (p
[len
-1] == '*')
6859 for (i
= 0; i
< n_switches
; i
++)
6860 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
6861 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
6863 switches
[i
].live_cond
|= switch_option
;
6864 /* User switch be validated from validate_all_switches.
6865 when the definition is seen from the spec file.
6866 If not defined anywhere, will be rejected. */
6867 if (switches
[i
].known
)
6868 switches
[i
].validated
= true;
6876 if (soft_matched_part
)
6878 if (soft_matched_part
[0])
6879 do_spec_1 (soft_matched_part
, 1, NULL
);
6880 /* Only insert a space after the substitution if it is at the
6881 end of the current sequence. So if:
6883 "%{foo=*:bar%*}%{foo=*:one%*two}"
6885 matches -foo=hello then it will produce:
6887 barhello onehellotwo
6889 if (*p
== 0 || *p
== '}')
6890 do_spec_1 (" ", 0, NULL
);
6893 /* Catch the case where a spec string contains something like
6894 '%{foo:%*}'. i.e. there is no * in the pattern on the left
6895 hand side of the :. */
6896 error ("spec failure: %<%%*%> has not been initialized by pattern match");
6899 /* Process a string found as the value of a spec given by name.
6900 This feature allows individual machine descriptions
6901 to add and use their own specs. */
6904 const char *name
= p
;
6905 struct spec_list
*sl
;
6908 /* The string after the S/P is the name of a spec that is to be
6910 while (*p
&& *p
!= ')')
6913 /* See if it's in the list. */
6914 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
6915 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
6917 name
= *(sl
->ptr_spec
);
6919 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
6927 value
= do_spec_1 (name
, 0, NULL
);
6932 /* Discard the closing paren. */
6939 /* End a previous argument, if there is one, then issue an
6947 error ("spec failure: unrecognized spec option %qc", c
);
6953 /* Backslash: treat next character as ordinary. */
6956 /* When adding more cases that previously matched default, make
6957 sure to adjust quote_spec_char_p as well. */
6961 /* Ordinary character: put it into the current argument. */
6962 obstack_1grow (&obstack
, c
);
6966 /* End of string. If we are processing a spec function, we need to
6967 end any pending argument. */
6968 if (processing_spec_function
)
6974 /* Look up a spec function. */
6976 static const struct spec_function
*
6977 lookup_spec_function (const char *name
)
6979 const struct spec_function
*sf
;
6981 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
6982 if (strcmp (sf
->name
, name
) == 0)
6988 /* Evaluate a spec function. */
6991 eval_spec_function (const char *func
, const char *args
,
6992 const char *soft_matched_part
)
6994 const struct spec_function
*sf
;
6995 const char *funcval
;
6997 /* Saved spec processing context. */
6998 vec
<const_char_p
> save_argbuf
;
7001 int save_delete_this_arg
;
7002 int save_this_is_output_file
;
7003 int save_this_is_library_file
;
7004 int save_input_from_pipe
;
7005 int save_this_is_linker_script
;
7006 const char *save_suffix_subst
;
7008 int save_growing_size
;
7009 void *save_growing_value
= NULL
;
7011 sf
= lookup_spec_function (func
);
7013 fatal_error (input_location
, "unknown spec function %qs", func
);
7015 /* Push the spec processing context. */
7016 save_argbuf
= argbuf
;
7018 save_arg_going
= arg_going
;
7019 save_delete_this_arg
= delete_this_arg
;
7020 save_this_is_output_file
= this_is_output_file
;
7021 save_this_is_library_file
= this_is_library_file
;
7022 save_this_is_linker_script
= this_is_linker_script
;
7023 save_input_from_pipe
= input_from_pipe
;
7024 save_suffix_subst
= suffix_subst
;
7026 /* If we have some object growing now, finalize it so the args and function
7027 eval proceed from a cleared context. This is needed to prevent the first
7028 constructed arg from mistakenly including the growing value. We'll push
7029 this value back on the obstack once the function evaluation is done, to
7030 restore a consistent processing context for our caller. This is fine as
7031 the address of growing objects isn't guaranteed to remain stable until
7032 they are finalized, and we expect this situation to be rare enough for
7033 the extra copy not to be an issue. */
7034 save_growing_size
= obstack_object_size (&obstack
);
7035 if (save_growing_size
> 0)
7036 save_growing_value
= obstack_finish (&obstack
);
7038 /* Create a new spec processing context, and build the function
7042 if (do_spec_2 (args
, soft_matched_part
) < 0)
7043 fatal_error (input_location
, "error in arguments to spec function %qs",
7046 /* argbuf_index is an index for the next argument to be inserted, and
7047 so contains the count of the args already inserted. */
7049 funcval
= (*sf
->func
) (argbuf
.length (),
7052 /* Pop the spec processing context. */
7054 argbuf
= save_argbuf
;
7056 arg_going
= save_arg_going
;
7057 delete_this_arg
= save_delete_this_arg
;
7058 this_is_output_file
= save_this_is_output_file
;
7059 this_is_library_file
= save_this_is_library_file
;
7060 this_is_linker_script
= save_this_is_linker_script
;
7061 input_from_pipe
= save_input_from_pipe
;
7062 suffix_subst
= save_suffix_subst
;
7064 if (save_growing_size
> 0)
7065 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
7070 /* Handle a spec function call of the form:
7074 ARGS is processed as a spec in a separate context and split into an
7075 argument vector in the normal fashion. The function returns a string
7076 containing a spec which we then process in the caller's context, or
7077 NULL if no processing is required.
7079 If RETVAL_NONNULL is not NULL, then store a bool whether function
7082 SOFT_MATCHED_PART holds the current value of a matched * pattern, which
7083 may be re-expanded with a %* as part of the function arguments. */
7086 handle_spec_function (const char *p
, bool *retval_nonnull
,
7087 const char *soft_matched_part
)
7090 const char *endp
, *funcval
;
7093 processing_spec_function
++;
7095 /* Get the function name. */
7096 for (endp
= p
; *endp
!= '\0'; endp
++)
7098 if (*endp
== '(') /* ) */
7100 /* Only allow [A-Za-z0-9], -, and _ in function names. */
7101 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
7102 fatal_error (input_location
, "malformed spec function name");
7104 if (*endp
!= '(') /* ) */
7105 fatal_error (input_location
, "no arguments for spec function");
7106 func
= save_string (p
, endp
- p
);
7109 /* Get the arguments. */
7110 for (count
= 0; *endp
!= '\0'; endp
++)
7119 else if (*endp
== '(') /* ) */
7124 fatal_error (input_location
, "malformed spec function arguments");
7125 args
= save_string (p
, endp
- p
);
7128 /* p now points to just past the end of the spec function expression. */
7130 funcval
= eval_spec_function (func
, args
, soft_matched_part
);
7131 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
7134 *retval_nonnull
= funcval
!= NULL
;
7139 processing_spec_function
--;
7144 /* Inline subroutine of handle_braces. Returns true if the current
7145 input suffix matches the atom bracketed by ATOM and END_ATOM. */
7147 input_suffix_matches (const char *atom
, const char *end_atom
)
7149 return (input_suffix
7150 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
7151 && input_suffix
[end_atom
- atom
] == '\0');
7154 /* Subroutine of handle_braces. Returns true if the current
7155 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
7157 input_spec_matches (const char *atom
, const char *end_atom
)
7159 return (input_file_compiler
7160 && input_file_compiler
->suffix
7161 && input_file_compiler
->suffix
[0] != '\0'
7162 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
7164 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
7167 /* Subroutine of handle_braces. Returns true if a switch
7168 matching the atom bracketed by ATOM and END_ATOM appeared on the
7171 switch_matches (const char *atom
, const char *end_atom
, int starred
)
7174 int len
= end_atom
- atom
;
7175 int plen
= starred
? len
: -1;
7177 for (i
= 0; i
< n_switches
; i
++)
7178 if (!strncmp (switches
[i
].part1
, atom
, len
)
7179 && (starred
|| switches
[i
].part1
[len
] == '\0')
7180 && check_live_switch (i
, plen
))
7183 /* Check if a switch with separated form matching the atom.
7184 We check -D and -U switches. */
7185 else if (switches
[i
].args
!= 0)
7187 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
7188 && *switches
[i
].part1
== atom
[0])
7190 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
7191 && (starred
|| (switches
[i
].part1
[1] == '\0'
7192 && switches
[i
].args
[0][len
- 1] == '\0'))
7193 && check_live_switch (i
, (starred
? 1 : -1)))
7201 /* Inline subroutine of handle_braces. Mark all of the switches which
7202 match ATOM (extends to END_ATOM; STARRED indicates whether there
7203 was a star after the atom) for later processing. */
7205 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
7208 int len
= end_atom
- atom
;
7209 int plen
= starred
? len
: -1;
7211 for (i
= 0; i
< n_switches
; i
++)
7212 if (!strncmp (switches
[i
].part1
, atom
, len
)
7213 && (starred
|| switches
[i
].part1
[len
] == '\0')
7214 && check_live_switch (i
, plen
))
7215 switches
[i
].ordering
= 1;
7218 /* Inline subroutine of handle_braces. Process all the currently
7219 marked switches through give_switch, and clear the marks. */
7221 process_marked_switches (void)
7225 for (i
= 0; i
< n_switches
; i
++)
7226 if (switches
[i
].ordering
== 1)
7228 switches
[i
].ordering
= 0;
7233 /* Handle a %{ ... } construct. P points just inside the leading {.
7234 Returns a pointer one past the end of the brace block, or 0
7235 if we call do_spec_1 and that returns -1. */
7238 handle_braces (const char *p
)
7240 const char *atom
, *end_atom
;
7241 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
7242 char *esc_buf
= NULL
, *d_esc_buf
= NULL
;
7244 const char *orig
= p
;
7252 bool a_must_be_last
= false;
7253 bool ordered_set
= false;
7254 bool disjunct_set
= false;
7255 bool disj_matched
= false;
7256 bool disj_starred
= true;
7257 bool n_way_choice
= false;
7258 bool n_way_matched
= false;
7260 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7267 /* Scan one "atom" (S in the description above of %{}, possibly
7268 with '!', '.', '@', ',', or '*' modifiers). */
7270 a_is_suffix
= false;
7271 a_is_starred
= false;
7272 a_is_negated
= false;
7273 a_is_spectype
= false;
7277 p
++, a_is_negated
= true;
7280 if (*p
== '%' && p
[1] == ':')
7284 p
= handle_spec_function (p
+ 2, &a_matched
, NULL
);
7289 p
++, a_is_suffix
= true;
7291 p
++, a_is_spectype
= true;
7295 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7296 || *p
== ',' || *p
== '.' || *p
== '@' || *p
== '\\')
7302 fatal_error (input_location
,
7303 "braced spec %qs ends in escape", orig
);
7315 if (esc_buf
&& esc_buf
!= d_esc_buf
)
7318 ep
= esc_buf
= (char *) xmalloc (end_atom
- atom
- esc
+ 1);
7319 for (ap
= atom
; ap
!= end_atom
; ap
++, ep
++)
7331 p
++, a_is_starred
= 1;
7338 /* Substitute the switch(es) indicated by the current atom. */
7340 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
7341 || a_is_spectype
|| atom
== end_atom
)
7344 mark_matching_switches (atom
, end_atom
, a_is_starred
);
7347 process_marked_switches ();
7351 /* Substitute some text if the current atom appears as a switch
7353 disjunct_set
= true;
7357 if (atom
&& atom
== end_atom
)
7359 if (!n_way_choice
|| disj_matched
|| *p
== '|'
7360 || a_is_negated
|| a_is_suffix
|| a_is_spectype
7364 /* An empty term may appear as the last choice of an
7365 N-way choice set; it means "otherwise". */
7366 a_must_be_last
= true;
7367 disj_matched
= !n_way_matched
;
7368 disj_starred
= false;
7372 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
7376 disj_starred
= false;
7378 /* Don't bother testing this atom if we already have a
7380 if (!disj_matched
&& !n_way_matched
)
7383 /* a_matched is already set by handle_spec_function. */;
7384 else if (a_is_suffix
)
7385 a_matched
= input_suffix_matches (atom
, end_atom
);
7386 else if (a_is_spectype
)
7387 a_matched
= input_spec_matches (atom
, end_atom
);
7389 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
7391 if (a_matched
!= a_is_negated
)
7393 disj_matched
= true;
7395 d_end_atom
= end_atom
;
7396 d_esc_buf
= esc_buf
;
7403 /* Found the body, that is, the text to substitute if the
7404 current disjunction matches. */
7405 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
7406 disj_matched
&& !n_way_matched
);
7410 /* If we have an N-way choice, reset state for the next
7414 n_way_choice
= true;
7415 n_way_matched
|= disj_matched
;
7416 disj_matched
= false;
7417 disj_starred
= true;
7418 d_atom
= d_end_atom
= NULL
;
7427 while (*p
++ != '}');
7430 if (d_esc_buf
&& d_esc_buf
!= esc_buf
)
7438 fatal_error (input_location
, "braced spec %qs is invalid at %qc", orig
, *p
);
7443 /* Subroutine of handle_braces. Scan and process a brace substitution body
7444 (X in the description of %{} syntax). P points one past the colon;
7445 ATOM and END_ATOM bracket the first atom which was found to be true
7446 (present) in the current disjunction; STARRED indicates whether all
7447 the atoms in the current disjunction were starred (for syntax validation);
7448 MATCHED indicates whether the disjunction matched or not, and therefore
7449 whether or not the body is to be processed through do_spec_1 or just
7450 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
7454 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
7455 int starred
, int matched
)
7457 const char *body
, *end_body
;
7458 unsigned int nesting_level
;
7459 bool have_subst
= false;
7461 /* Locate the closing } or ;, honoring nested braces.
7462 Trim trailing whitespace. */
7471 if (!--nesting_level
)
7474 else if (*p
== ';' && nesting_level
== 1)
7476 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
7478 else if (*p
== '\0')
7484 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
7487 if (have_subst
&& !starred
)
7492 /* Copy the substitution body to permanent storage and execute it.
7493 If have_subst is false, this is a simple matter of running the
7494 body through do_spec_1... */
7495 char *string
= save_string (body
, end_body
- body
);
7498 if (do_spec_1 (string
, 0, NULL
) < 0)
7506 /* ... but if have_subst is true, we have to process the
7507 body once for each matching switch, with %* set to the
7508 variant part of the switch. */
7509 unsigned int hard_match_len
= end_atom
- atom
;
7512 for (i
= 0; i
< n_switches
; i
++)
7513 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
7514 && check_live_switch (i
, hard_match_len
))
7516 if (do_spec_1 (string
, 0,
7517 &switches
[i
].part1
[hard_match_len
]) < 0)
7522 /* Pass any arguments this switch has. */
7524 suffix_subst
= NULL
;
7533 fatal_error (input_location
, "braced spec body %qs is invalid", body
);
7536 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
7537 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
7538 spec, or -1 if either exact match or %* is used.
7540 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
7541 whose value does not begin with "no-" is obsoleted by the same value
7542 with the "no-", similarly for a switch with the "no-" prefix. */
7545 check_live_switch (int switchnum
, int prefix_length
)
7547 const char *name
= switches
[switchnum
].part1
;
7550 /* If we already processed this switch and determined if it was
7551 live or not, return our past determination. */
7552 if (switches
[switchnum
].live_cond
!= 0)
7553 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
7554 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
7555 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
7558 /* In the common case of {<at-most-one-letter>*}, a negating
7559 switch would always match, so ignore that case. We will just
7560 send the conflicting switches to the compiler phase. */
7561 if (prefix_length
>= 0 && prefix_length
<= 1)
7564 /* Now search for duplicate in a manner that depends on the name. */
7568 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
7569 if (switches
[i
].part1
[0] == 'O')
7571 switches
[switchnum
].validated
= true;
7572 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
7577 case 'W': case 'f': case 'm': case 'g':
7578 if (startswith (name
+ 1, "no-"))
7580 /* We have Xno-YYY, search for XYYY. */
7581 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
7582 if (switches
[i
].part1
[0] == name
[0]
7583 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
7585 /* --specs are validated with the validate_switches mechanism. */
7586 if (switches
[switchnum
].known
)
7587 switches
[switchnum
].validated
= true;
7588 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
7594 /* We have XYYY, search for Xno-YYY. */
7595 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
7596 if (switches
[i
].part1
[0] == name
[0]
7597 && switches
[i
].part1
[1] == 'n'
7598 && switches
[i
].part1
[2] == 'o'
7599 && switches
[i
].part1
[3] == '-'
7600 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
7602 /* --specs are validated with the validate_switches mechanism. */
7603 if (switches
[switchnum
].known
)
7604 switches
[switchnum
].validated
= true;
7605 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
7612 /* Otherwise the switch is live. */
7613 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
7617 /* Pass a switch to the current accumulating command
7618 in the same form that we received it.
7619 SWITCHNUM identifies the switch; it is an index into
7620 the vector of switches gcc received, which is `switches'.
7621 This cannot fail since it never finishes a command line.
7623 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
7626 give_switch (int switchnum
, int omit_first_word
)
7628 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
7631 if (!omit_first_word
)
7633 do_spec_1 ("-", 0, NULL
);
7634 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
7637 if (switches
[switchnum
].args
!= 0)
7640 for (p
= switches
[switchnum
].args
; *p
; p
++)
7642 const char *arg
= *p
;
7644 do_spec_1 (" ", 0, NULL
);
7647 unsigned length
= strlen (arg
);
7650 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
7651 if (arg
[length
] == '.')
7653 (CONST_CAST (char *, arg
))[length
] = 0;
7657 do_spec_1 (arg
, 1, NULL
);
7659 (CONST_CAST (char *, arg
))[length
] = '.';
7660 do_spec_1 (suffix_subst
, 1, NULL
);
7663 do_spec_1 (arg
, 1, NULL
);
7667 do_spec_1 (" ", 0, NULL
);
7668 switches
[switchnum
].validated
= true;
7671 /* Print GCC configuration (e.g. version, thread model, target,
7672 configuration_arguments) to a given FILE. */
7675 print_configuration (FILE *file
)
7680 fnotice (file
, "Target: %s\n", spec_machine
);
7681 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
7683 #ifdef THREAD_MODEL_SPEC
7684 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7685 but there's no point in doing all this processing just to get
7686 thread_model back. */
7687 obstack_init (&obstack
);
7688 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
7689 obstack_1grow (&obstack
, '\0');
7690 thrmod
= XOBFINISH (&obstack
, const char *);
7692 thrmod
= thread_model
;
7695 fnotice (file
, "Thread model: %s\n", thrmod
);
7696 fnotice (file
, "Supported LTO compression algorithms: zlib");
7698 fnotice (file
, " zstd");
7700 fnotice (file
, "\n");
7702 /* compiler_version is truncated at the first space when initialized
7703 from version string, so truncate version_string at the first space
7704 before comparing. */
7705 for (n
= 0; version_string
[n
]; n
++)
7706 if (version_string
[n
] == ' ')
7709 if (! strncmp (version_string
, compiler_version
, n
)
7710 && compiler_version
[n
] == 0)
7711 fnotice (file
, "gcc version %s %s\n", version_string
,
7714 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n",
7715 version_string
, pkgversion_string
, compiler_version
);
7719 #define RETRY_ICE_ATTEMPTS 3
7721 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
7724 files_equal_p (char *file1
, char *file2
)
7726 struct stat st1
, st2
;
7729 const int bufsize
= 8192;
7730 char *buf
= XNEWVEC (char, bufsize
);
7732 fd1
= open (file1
, O_RDONLY
);
7733 fd2
= open (file2
, O_RDONLY
);
7735 if (fd1
< 0 || fd2
< 0)
7738 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
7741 if (st1
.st_size
!= st2
.st_size
)
7744 for (n
= st1
.st_size
; n
; n
-= len
)
7747 if ((int) len
> bufsize
/ 2)
7750 if (read (fd1
, buf
, len
) != (int) len
7751 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
7756 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
7773 /* Check that compiler's output doesn't differ across runs.
7774 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
7775 stdout and stderr for each compiler run. Return true if all of
7776 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
7779 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
7782 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
7784 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
7785 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
7787 fnotice (stderr
, "The bug is not reproducible, so it is"
7788 " likely a hardware or OS problem.\n");
7792 return i
== RETRY_ICE_ATTEMPTS
- 2;
7795 enum attempt_status
{
7796 ATTEMPT_STATUS_FAIL_TO_RUN
,
7797 ATTEMPT_STATUS_SUCCESS
,
7802 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
7803 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
7804 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
7805 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
7806 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
7807 ATTEMPT_STATUS_SUCCESS otherwise. */
7809 static enum attempt_status
7810 run_attempt (const char **new_argv
, const char *out_temp
,
7811 const char *err_temp
, int emit_system_info
, int append
)
7814 if (emit_system_info
)
7816 FILE *file_out
= fopen (err_temp
, "a");
7817 print_configuration (file_out
);
7818 fputs ("\n", file_out
);
7824 struct pex_obj
*pex
;
7826 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
7827 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
7830 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
7832 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
7834 fatal_error (input_location
, "%<pex_init%> failed: %m");
7836 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
7837 CONST_CAST2 (char *const *, const char **, &new_argv
[1]),
7838 out_temp
, err_temp
, &err
);
7842 fatal_error (input_location
,
7843 err
? G_ ("cannot execute %qs: %s: %m")
7844 : G_ ("cannot execute %qs: %s"),
7845 new_argv
[0], errmsg
);
7848 if (!pex_get_status (pex
, 1, &exit_status
))
7851 switch (WEXITSTATUS (exit_status
))
7854 status
= ATTEMPT_STATUS_ICE
;
7857 case SUCCESS_EXIT_CODE
:
7858 status
= ATTEMPT_STATUS_SUCCESS
;
7870 /* This routine reads lines from IN file, adds C++ style comments
7871 at the begining of each line and writes result into OUT. */
7874 insert_comments (const char *file_in
, const char *file_out
)
7876 FILE *in
= fopen (file_in
, "rb");
7877 FILE *out
= fopen (file_out
, "wb");
7880 bool add_comment
= true;
7881 while (fgets (line
, sizeof (line
), in
))
7886 add_comment
= strchr (line
, '\n') != NULL
;
7893 /* This routine adds preprocessed source code into the given ERR_FILE.
7894 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
7895 add information in report file. RUN_ATTEMPT should return
7896 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
7899 do_report_bug (const char **new_argv
, const int nargs
,
7900 char **out_file
, char **err_file
)
7903 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
7906 write (fd
, "\n//", 3);
7907 for (i
= 0; i
< nargs
; i
++)
7910 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
7912 write (fd
, "\n\n", 2);
7914 new_argv
[nargs
] = "-E";
7915 new_argv
[nargs
+ 1] = NULL
;
7917 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
7919 if (status
== ATTEMPT_STATUS_SUCCESS
)
7921 fnotice (stderr
, "Preprocessed source stored into %s file,"
7922 " please attach this to your bugreport.\n", *out_file
);
7923 /* Make sure it is not deleted. */
7929 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
7930 containing GCC configuration, backtrace, compiler's command line options
7931 and preprocessed source code. */
7934 try_generate_repro (const char **argv
)
7936 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
7937 const char **new_argv
;
7938 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
7939 char **temp_stdout_files
= &temp_files
[0];
7940 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
7942 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
7945 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
7946 /* Only retry compiler ICEs, not preprocessor ones. */
7947 if (! strcmp (argv
[nargs
], "-E"))
7949 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
7956 /* If the compiler is going to output any time information,
7957 it might varry between invocations. */
7958 else if (! strcmp (argv
[nargs
], "-quiet"))
7960 else if (! strcmp (argv
[nargs
], "-ftime-report"))
7963 if (out_arg
== -1 || !quiet
)
7966 memset (temp_files
, '\0', sizeof (temp_files
));
7967 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
7968 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
7969 new_argv
[nargs
++] = "-frandom-seed=0";
7970 new_argv
[nargs
++] = "-fdump-noaddr";
7971 new_argv
[nargs
] = NULL
;
7972 if (new_argv
[out_arg
][2] == '\0')
7973 new_argv
[out_arg
+ 1] = "-";
7975 new_argv
[out_arg
] = "-o-";
7978 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
7980 int emit_system_info
= 0;
7982 temp_stdout_files
[attempt
] = make_temp_file (".out");
7983 temp_stderr_files
[attempt
] = make_temp_file (".err");
7985 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
7988 emit_system_info
= 1;
7991 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
7992 temp_stderr_files
[attempt
], emit_system_info
,
7995 if (status
!= ATTEMPT_STATUS_ICE
)
7997 fnotice (stderr
, "The bug is not reproducible, so it is"
7998 " likely a hardware or OS problem.\n");
8003 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
8007 /* Insert commented out backtrace into report file. */
8008 char **stderr_commented
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
8009 insert_comments (temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
8012 /* In final attempt we append compiler options and preprocesssed code to last
8013 generated .out file with configuration and backtrace. */
8014 char **err
= &temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1];
8015 do_report_bug (new_argv
, nargs
, stderr_commented
, err
);
8019 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
8022 unlink (temp_stdout_files
[i
]);
8023 free (temp_stdout_files
[i
]);
8027 /* Search for a file named NAME trying various prefixes including the
8028 user's -B prefix and some standard ones.
8029 Return the absolute file name found. If nothing is found, return NAME. */
8032 find_file (const char *name
)
8034 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
8035 return newname
? newname
: name
;
8038 /* Determine whether a directory exists. If LINKER, return 0 for
8039 certain fixed names not needed by the linker. */
8042 is_directory (const char *path1
, bool linker
)
8049 /* Ensure the string ends with "/.". The resulting path will be a
8050 directory even if the given path is a symbolic link. */
8051 len1
= strlen (path1
);
8052 path
= (char *) alloca (3 + len1
);
8053 memcpy (path
, path1
, len1
);
8055 if (!IS_DIR_SEPARATOR (cp
[-1]))
8056 *cp
++ = DIR_SEPARATOR
;
8060 /* Exclude directories that the linker is known to search. */
8062 && IS_DIR_SEPARATOR (path
[0])
8064 && filename_ncmp (path
+ 1, "lib", 3) == 0)
8066 && filename_ncmp (path
+ 1, "usr", 3) == 0
8067 && IS_DIR_SEPARATOR (path
[4])
8068 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
8071 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
8074 /* Set up the various global variables to indicate that we're processing
8075 the input file named FILENAME. */
8078 set_input (const char *filename
)
8082 gcc_input_filename
= filename
;
8083 input_filename_length
= strlen (gcc_input_filename
);
8084 input_basename
= lbasename (gcc_input_filename
);
8086 /* Find a suffix starting with the last period,
8087 and set basename_length to exclude that suffix. */
8088 basename_length
= strlen (input_basename
);
8089 suffixed_basename_length
= basename_length
;
8090 p
= input_basename
+ basename_length
;
8091 while (p
!= input_basename
&& *p
!= '.')
8093 if (*p
== '.' && p
!= input_basename
)
8095 basename_length
= p
- input_basename
;
8096 input_suffix
= p
+ 1;
8101 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
8102 we will need to do a stat on the gcc_input_filename. The
8103 INPUT_STAT_SET signals that the stat is needed. */
8107 /* On fatal signals, delete all the temporary files. */
8110 fatal_signal (int signum
)
8112 signal (signum
, SIG_DFL
);
8113 delete_failure_queue ();
8114 delete_temp_files ();
8115 /* Get the same signal again, this time not handled,
8116 so its normal effect occurs. */
8117 kill (getpid (), signum
);
8120 /* Compare the contents of the two files named CMPFILE[0] and
8121 CMPFILE[1]. Return zero if they're identical, nonzero
8125 compare_files (char *cmpfile
[])
8128 FILE *temp
[2] = { NULL
, NULL
};
8134 void *map
[2] = { NULL
, NULL
};
8136 for (i
= 0; i
< 2; i
++)
8140 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
8142 error ("%s: could not determine length of compare-debug file %s",
8143 gcc_input_filename
, cmpfile
[i
]);
8148 length
[i
] = st
.st_size
;
8151 if (!ret
&& length
[0] != length
[1])
8153 error ("%s: %<-fcompare-debug%> failure (length)", gcc_input_filename
);
8158 for (i
= 0; i
< 2; i
++)
8160 int fd
= open (cmpfile
[i
], O_RDONLY
);
8163 error ("%s: could not open compare-debug file %s",
8164 gcc_input_filename
, cmpfile
[i
]);
8169 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
8172 if (map
[i
] == (void *) MAP_FAILED
)
8181 if (memcmp (map
[0], map
[1], length
[0]) != 0)
8183 error ("%s: %<-fcompare-debug%> failure", gcc_input_filename
);
8188 for (i
= 0; i
< 2; i
++)
8190 munmap ((caddr_t
) map
[i
], length
[i
]);
8199 for (i
= 0; i
< 2; i
++)
8201 temp
[i
] = fopen (cmpfile
[i
], "r");
8204 error ("%s: could not open compare-debug file %s",
8205 gcc_input_filename
, cmpfile
[i
]);
8211 if (!ret
&& temp
[0] && temp
[1])
8215 c0
= fgetc (temp
[0]);
8216 c1
= fgetc (temp
[1]);
8220 error ("%s: %<-fcompare-debug%> failure",
8221 gcc_input_filename
);
8230 for (i
= 1; i
>= 0; i
--)
8239 driver::driver (bool can_finalize
, bool debug
) :
8240 explicit_link_files (NULL
),
8241 decoded_options (NULL
)
8243 env
.init (can_finalize
, debug
);
8248 XDELETEVEC (explicit_link_files
);
8249 XDELETEVEC (decoded_options
);
8252 /* driver::main is implemented as a series of driver:: method calls. */
8255 driver::main (int argc
, char **argv
)
8259 set_progname (argv
[0]);
8260 expand_at_files (&argc
, &argv
);
8261 decode_argv (argc
, const_cast <const char **> (argv
));
8262 global_initializations ();
8263 build_multilib_strings ();
8265 putenv_COLLECT_AS_OPTIONS (assembler_options
);
8266 putenv_COLLECT_GCC (argv
[0]);
8267 maybe_putenv_COLLECT_LTO_WRAPPER ();
8268 maybe_putenv_OFFLOAD_TARGETS ();
8269 handle_unrecognized_options ();
8273 m_option_proposer
.suggest_completion (completion
);
8277 if (!maybe_print_and_exit ())
8280 early_exit
= prepare_infiles ();
8282 return get_exit_code ();
8284 do_spec_on_infiles ();
8285 maybe_run_linker (argv
[0]);
8287 return get_exit_code ();
8290 /* Locate the final component of argv[0] after any leading path, and set
8291 the program name accordingly. */
8294 driver::set_progname (const char *argv0
) const
8296 const char *p
= argv0
+ strlen (argv0
);
8297 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
8301 xmalloc_set_program_name (progname
);
8304 /* Expand any @ files within the command-line args,
8305 setting at_file_supplied if any were expanded. */
8308 driver::expand_at_files (int *argc
, char ***argv
) const
8310 char **old_argv
= *argv
;
8312 expandargv (argc
, argv
);
8314 /* Determine if any expansions were made. */
8315 if (*argv
!= old_argv
)
8316 at_file_supplied
= true;
8319 /* Decode the command-line arguments from argc/argv into the
8320 decoded_options array. */
8323 driver::decode_argv (int argc
, const char **argv
)
8325 init_opts_obstack ();
8326 init_options_struct (&global_options
, &global_options_set
);
8328 decode_cmdline_options_to_array (argc
, argv
,
8330 &decoded_options
, &decoded_options_count
);
8333 /* Perform various initializations and setup. */
8336 driver::global_initializations ()
8338 /* Unlock the stdio streams. */
8339 unlock_std_streams ();
8341 gcc_init_libintl ();
8343 diagnostic_initialize (global_dc
, 0);
8344 diagnostic_color_init (global_dc
);
8345 diagnostic_urls_init (global_dc
);
8346 global_dc
->set_urlifier (make_gcc_urlifier (0));
8348 #ifdef GCC_DRIVER_HOST_INITIALIZATION
8349 /* Perform host dependent initialization when needed. */
8350 GCC_DRIVER_HOST_INITIALIZATION
;
8353 if (atexit (delete_temp_files
) != 0)
8354 fatal_error (input_location
, "atexit failed");
8356 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
8357 signal (SIGINT
, fatal_signal
);
8359 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
8360 signal (SIGHUP
, fatal_signal
);
8362 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
8363 signal (SIGTERM
, fatal_signal
);
8365 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
8366 signal (SIGPIPE
, fatal_signal
);
8369 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
8370 receive the signal. A different setting is inheritable */
8371 signal (SIGCHLD
, SIG_DFL
);
8374 /* Parsing and gimplification sometimes need quite large stack.
8375 Increase stack size limits if possible. */
8376 stack_limit_increase (64 * 1024 * 1024);
8378 /* Allocate the argument vector. */
8381 obstack_init (&obstack
);
8384 /* Build multilib_select, et. al from the separate lines that make up each
8385 multilib selection. */
8388 driver::build_multilib_strings () const
8392 const char *const *q
= multilib_raw
;
8395 obstack_init (&multilib_obstack
);
8396 while ((p
= *q
++) != (char *) 0)
8397 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8399 obstack_1grow (&multilib_obstack
, 0);
8400 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
8402 q
= multilib_matches_raw
;
8403 while ((p
= *q
++) != (char *) 0)
8404 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8406 obstack_1grow (&multilib_obstack
, 0);
8407 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
8409 q
= multilib_exclusions_raw
;
8410 while ((p
= *q
++) != (char *) 0)
8411 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8413 obstack_1grow (&multilib_obstack
, 0);
8414 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
8416 q
= multilib_reuse_raw
;
8417 while ((p
= *q
++) != (char *) 0)
8418 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8420 obstack_1grow (&multilib_obstack
, 0);
8421 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
8424 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
8427 obstack_1grow (&multilib_obstack
, ' ');
8428 obstack_grow (&multilib_obstack
,
8429 multilib_defaults_raw
[i
],
8430 strlen (multilib_defaults_raw
[i
]));
8434 obstack_1grow (&multilib_obstack
, 0);
8435 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
8439 /* Set up the spec-handling machinery. */
8442 driver::set_up_specs () const
8444 const char *spec_machine_suffix
;
8448 #ifdef INIT_ENVIRONMENT
8449 /* Set up any other necessary machine specific environment variables. */
8450 xputenv (INIT_ENVIRONMENT
);
8453 /* Make a table of what switches there are (switches, n_switches).
8454 Make a table of specified input files (infiles, n_infiles).
8455 Decode switches that are handled locally. */
8457 process_command (decoded_options_count
, decoded_options
);
8459 /* Initialize the vector of specs to just the default.
8460 This means one element containing 0s, as a terminator. */
8462 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
8463 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
8464 n_compilers
= n_default_compilers
;
8466 /* Read specs from a file if there is one. */
8468 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
8469 accel_dir_suffix
, dir_separator_str
, NULL
);
8470 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
8472 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
8473 /* Read the specs file unless it is a default one. */
8474 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
8475 read_specs (specs_file
, true, false);
8479 #ifdef ACCEL_COMPILER
8480 spec_machine_suffix
= machine_suffix
;
8482 spec_machine_suffix
= just_machine_suffix
;
8485 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
8486 for any override of as, ld and libraries. */
8487 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
8488 + strlen (spec_machine_suffix
) + sizeof ("specs"));
8489 strcpy (specs_file
, standard_exec_prefix
);
8490 strcat (specs_file
, spec_machine_suffix
);
8491 strcat (specs_file
, "specs");
8492 if (access (specs_file
, R_OK
) == 0)
8493 read_specs (specs_file
, true, false);
8495 /* Process any configure-time defaults specified for the command line
8496 options, via OPTION_DEFAULT_SPECS. */
8497 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
8498 do_option_spec (option_default_specs
[i
].name
,
8499 option_default_specs
[i
].spec
);
8501 /* Process DRIVER_SELF_SPECS, adding any new options to the end
8502 of the command line. */
8504 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
8505 do_self_spec (driver_self_specs
[i
]);
8507 /* If not cross-compiling, look for executables in the standard
8509 if (*cross_compile
== '0')
8511 if (*md_exec_prefix
)
8513 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
8514 PREFIX_PRIORITY_LAST
, 0, 0);
8518 /* Process sysroot_suffix_spec. */
8519 if (*sysroot_suffix_spec
!= 0
8520 && !no_sysroot_suffix
8521 && do_spec_2 (sysroot_suffix_spec
, NULL
) == 0)
8523 if (argbuf
.length () > 1)
8524 error ("spec failure: more than one argument to "
8525 "%<SYSROOT_SUFFIX_SPEC%>");
8526 else if (argbuf
.length () == 1)
8527 target_sysroot_suffix
= xstrdup (argbuf
.last ());
8530 #ifdef HAVE_LD_SYSROOT
8531 /* Pass the --sysroot option to the linker, if it supports that. If
8532 there is a sysroot_suffix_spec, it has already been processed by
8533 this point, so target_system_root really is the system root we
8535 if (target_system_root
)
8537 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
8538 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
8539 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
8543 /* Process sysroot_hdrs_suffix_spec. */
8544 if (*sysroot_hdrs_suffix_spec
!= 0
8545 && !no_sysroot_suffix
8546 && do_spec_2 (sysroot_hdrs_suffix_spec
, NULL
) == 0)
8548 if (argbuf
.length () > 1)
8549 error ("spec failure: more than one argument "
8550 "to %<SYSROOT_HEADERS_SUFFIX_SPEC%>");
8551 else if (argbuf
.length () == 1)
8552 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
8555 /* Look for startfiles in the standard places. */
8556 if (*startfile_prefix_spec
!= 0
8557 && do_spec_2 (startfile_prefix_spec
, NULL
) == 0
8558 && do_spec_1 (" ", 0, NULL
) == 0)
8560 for (const char *arg
: argbuf
)
8561 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
8562 PREFIX_PRIORITY_LAST
, 0, 1);
8564 /* We should eventually get rid of all these and stick to
8565 startfile_prefix_spec exclusively. */
8566 else if (*cross_compile
== '0' || target_system_root
)
8568 if (*md_startfile_prefix
)
8569 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
8570 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
8572 if (*md_startfile_prefix_1
)
8573 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
8574 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
8576 /* If standard_startfile_prefix is relative, base it on
8577 standard_exec_prefix. This lets us move the installed tree
8578 as a unit. If GCC_EXEC_PREFIX is defined, base
8579 standard_startfile_prefix on that as well.
8581 If the prefix is relative, only search it for native compilers;
8582 otherwise we will search a directory containing host libraries. */
8583 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
8584 add_sysrooted_prefix (&startfile_prefixes
,
8585 standard_startfile_prefix
, "BINUTILS",
8586 PREFIX_PRIORITY_LAST
, 0, 1);
8587 else if (*cross_compile
== '0')
8589 add_prefix (&startfile_prefixes
,
8590 concat (gcc_exec_prefix
8591 ? gcc_exec_prefix
: standard_exec_prefix
,
8593 standard_startfile_prefix
, NULL
),
8594 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
8597 /* Sysrooted prefixes are relocated because target_system_root is
8598 also relocated by gcc_exec_prefix. */
8599 if (*standard_startfile_prefix_1
)
8600 add_sysrooted_prefix (&startfile_prefixes
,
8601 standard_startfile_prefix_1
, "BINUTILS",
8602 PREFIX_PRIORITY_LAST
, 0, 1);
8603 if (*standard_startfile_prefix_2
)
8604 add_sysrooted_prefix (&startfile_prefixes
,
8605 standard_startfile_prefix_2
, "BINUTILS",
8606 PREFIX_PRIORITY_LAST
, 0, 1);
8609 /* Process any user specified specs in the order given on the command
8611 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
8613 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
8615 read_specs (filename
? filename
: uptr
->filename
, false, true);
8618 /* Process any user self specs. */
8620 struct spec_list
*sl
;
8621 for (sl
= specs
; sl
; sl
= sl
->next
)
8622 if (sl
->name_len
== sizeof "self_spec" - 1
8623 && !strcmp (sl
->name
, "self_spec"))
8624 do_self_spec (*sl
->ptr_spec
);
8629 enum save_temps save
;
8631 if (!compare_debug_second
)
8633 n_switches_debug_check
[1] = n_switches
;
8634 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
8635 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
8638 do_self_spec ("%:compare-debug-self-opt()");
8639 n_switches_debug_check
[0] = n_switches
;
8640 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
8641 switches_debug_check
[0] = switches
;
8643 n_switches
= n_switches_debug_check
[1];
8644 n_switches_alloc
= n_switches_alloc_debug_check
[1];
8645 switches
= switches_debug_check
[1];
8648 /* Avoid crash when computing %j in this early. */
8649 save
= save_temps_flag
;
8650 save_temps_flag
= SAVE_TEMPS_NONE
;
8652 compare_debug
= -compare_debug
;
8653 do_self_spec ("%:compare-debug-self-opt()");
8655 save_temps_flag
= save
;
8657 if (!compare_debug_second
)
8659 n_switches_debug_check
[1] = n_switches
;
8660 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
8661 switches_debug_check
[1] = switches
;
8662 compare_debug
= -compare_debug
;
8663 n_switches
= n_switches_debug_check
[0];
8664 n_switches_alloc
= n_switches_debug_check
[0];
8665 switches
= switches_debug_check
[0];
8670 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
8671 if (gcc_exec_prefix
)
8672 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
8673 dir_separator_str
, spec_version
,
8674 accel_dir_suffix
, dir_separator_str
, NULL
);
8676 /* Now we have the specs.
8677 Set the `valid' bits for switches that match anything in any spec. */
8679 validate_all_switches ();
8681 /* Now that we have the switches and the specs, set
8682 the subdirectory based on the options. */
8683 set_multilib_dir ();
8686 /* Set up to remember the pathname of gcc and any options
8687 needed for collect. We use argv[0] instead of progname because
8688 we need the complete pathname. */
8691 driver::putenv_COLLECT_GCC (const char *argv0
) const
8693 obstack_init (&collect_obstack
);
8694 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
8695 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
8696 xputenv (XOBFINISH (&collect_obstack
, char *));
8699 /* Set up to remember the pathname of the lto wrapper. */
8702 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
8704 char *lto_wrapper_file
;
8707 lto_wrapper_file
= NULL
;
8709 lto_wrapper_file
= find_a_program ("lto-wrapper");
8710 if (lto_wrapper_file
)
8712 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
8713 set_static_spec_owned (<o_wrapper_spec
, lto_wrapper_file
);
8714 obstack_init (&collect_obstack
);
8715 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
8716 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
8717 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
8718 strlen (lto_wrapper_spec
) + 1);
8719 xputenv (XOBFINISH (&collect_obstack
, char *));
8724 /* Set up to remember the names of offload targets. */
8727 driver::maybe_putenv_OFFLOAD_TARGETS () const
8729 if (offload_targets
&& offload_targets
[0] != '\0')
8731 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
8732 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
8733 obstack_grow (&collect_obstack
, offload_targets
,
8734 strlen (offload_targets
) + 1);
8735 xputenv (XOBFINISH (&collect_obstack
, char *));
8736 #if OFFLOAD_DEFAULTED
8737 if (offload_targets_default
)
8738 xputenv ("OFFLOAD_TARGET_DEFAULT=1");
8742 free (offload_targets
);
8743 offload_targets
= NULL
;
8746 /* Reject switches that no pass was interested in. */
8749 driver::handle_unrecognized_options ()
8751 for (size_t i
= 0; (int) i
< n_switches
; i
++)
8752 if (! switches
[i
].validated
)
8754 const char *hint
= m_option_proposer
.suggest_option (switches
[i
].part1
);
8756 error ("unrecognized command-line option %<-%s%>;"
8757 " did you mean %<-%s%>?",
8758 switches
[i
].part1
, hint
);
8760 error ("unrecognized command-line option %<-%s%>",
8765 /* Handle the various -print-* options, returning 0 if the driver
8766 should exit, or nonzero if the driver should continue. */
8769 driver::maybe_print_and_exit () const
8771 if (print_search_dirs
)
8773 printf (_("install: %s%s\n"),
8774 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
8775 gcc_exec_prefix
? "" : machine_suffix
);
8776 printf (_("programs: %s\n"),
8777 build_search_list (&exec_prefixes
, "", false, false));
8778 printf (_("libraries: %s\n"),
8779 build_search_list (&startfile_prefixes
, "", false, true));
8783 if (print_file_name
)
8785 printf ("%s\n", find_file (print_file_name
));
8789 if (print_prog_name
)
8791 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
8793 /* Append USE_LD to the default linker. */
8794 #ifdef DEFAULT_LINKER
8796 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
8797 int len
= (sizeof (DEFAULT_LINKER
)
8798 - sizeof (HOST_EXECUTABLE_SUFFIX
));
8802 char *default_linker
= xstrdup (DEFAULT_LINKER
);
8803 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
8804 HOST_EXECUTABLE_SUFFIX. */
8805 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
8807 default_linker
[len
] = '\0';
8808 ld
= concat (default_linker
, use_ld
,
8809 HOST_EXECUTABLE_SUFFIX
, NULL
);
8814 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
8815 if (access (ld
, X_OK
) == 0)
8817 printf ("%s\n", ld
);
8821 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
8823 char *newname
= find_a_program (print_prog_name
);
8824 printf ("%s\n", (newname
? newname
: print_prog_name
));
8828 if (print_multi_lib
)
8830 print_multilib_info ();
8834 if (print_multi_directory
)
8836 if (multilib_dir
== NULL
)
8839 printf ("%s\n", multilib_dir
);
8843 if (print_multiarch
)
8845 if (multiarch_dir
== NULL
)
8848 printf ("%s\n", multiarch_dir
);
8854 if (target_system_root
)
8856 if (target_sysroot_suffix
)
8857 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
8859 printf ("%s\n", target_system_root
);
8864 if (print_multi_os_directory
)
8866 if (multilib_os_dir
== NULL
)
8869 printf ("%s\n", multilib_os_dir
);
8873 if (print_sysroot_headers_suffix
)
8875 if (*sysroot_hdrs_suffix_spec
)
8877 printf("%s\n", (target_sysroot_hdrs_suffix
8878 ? target_sysroot_hdrs_suffix
8883 /* The error status indicates that only one set of fixed
8884 headers should be built. */
8885 fatal_error (input_location
,
8886 "not configured with sysroot headers suffix");
8889 if (print_help_list
)
8895 printf (_("\nFor bug reporting instructions, please see:\n"));
8896 printf ("%s.\n", bug_report_url
);
8901 /* We do not exit here. Instead we have created a fake input file
8902 called 'help-dummy' which needs to be compiled, and we pass this
8903 on the various sub-processes, along with the --help switch.
8904 Ensure their output appears after ours. */
8905 fputc ('\n', stdout
);
8911 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
8913 printf ("Copyright %s 2024 Free Software Foundation, Inc.\n",
8915 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
8916 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
8921 /* We do not exit here. We use the same mechanism of --help to print
8922 the version of the sub-processes. */
8923 fputc ('\n', stdout
);
8929 print_configuration (stderr
);
8937 /* Figure out what to do with each input file.
8938 Return true if we need to exit early from "main", false otherwise. */
8941 driver::prepare_infiles ()
8944 int lang_n_infiles
= 0;
8946 if (n_infiles
== added_libraries
)
8947 fatal_error (input_location
, "no input files");
8950 /* Early exit needed from main. */
8953 /* Make a place to record the compiler output file names
8954 that correspond to the input files. */
8957 i
+= lang_specific_extra_outfiles
;
8958 outfiles
= XCNEWVEC (const char *, i
);
8960 /* Record which files were specified explicitly as link input. */
8962 explicit_link_files
= XCNEWVEC (char, n_infiles
);
8964 combine_inputs
= have_o
|| flag_wpa
;
8966 for (i
= 0; (int) i
< n_infiles
; i
++)
8968 const char *name
= infiles
[i
].name
;
8969 struct compiler
*compiler
= lookup_compiler (name
,
8971 infiles
[i
].language
);
8973 if (compiler
&& !(compiler
->combinable
))
8974 combine_inputs
= false;
8976 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
8977 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
8978 infiles
[i
].incompiler
= compiler
;
8982 input_file_compiler
= compiler
;
8983 infiles
[i
].incompiler
= compiler
;
8987 /* Since there is no compiler for this input file, assume it is a
8989 explicit_link_files
[i
] = 1;
8990 infiles
[i
].incompiler
= NULL
;
8992 infiles
[i
].compiled
= false;
8993 infiles
[i
].preprocessed
= false;
8996 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
8997 fatal_error (input_location
,
8998 "cannot specify %<-o%> with %<-c%>, %<-S%> or %<-E%> "
8999 "with multiple files");
9001 /* No early exit needed from main; we can continue. */
9005 /* Run the spec machinery on each input file. */
9008 driver::do_spec_on_infiles () const
9012 for (i
= 0; (int) i
< n_infiles
; i
++)
9014 int this_file_error
= 0;
9016 /* Tell do_spec what to substitute for %i. */
9018 input_file_number
= i
;
9019 set_input (infiles
[i
].name
);
9021 if (infiles
[i
].compiled
)
9024 /* Use the same thing in %o, unless cp->spec says otherwise. */
9026 outfiles
[i
] = gcc_input_filename
;
9028 /* Figure out which compiler from the file's suffix. */
9031 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
9032 infiles
[i
].language
);
9034 if (input_file_compiler
)
9036 /* Ok, we found an applicable compiler. Run its spec. */
9038 if (input_file_compiler
->spec
[0] == '#')
9040 error ("%s: %s compiler not installed on this system",
9041 gcc_input_filename
, &input_file_compiler
->spec
[1]);
9042 this_file_error
= 1;
9050 free (debug_check_temp_file
[0]);
9051 debug_check_temp_file
[0] = NULL
;
9053 free (debug_check_temp_file
[1]);
9054 debug_check_temp_file
[1] = NULL
;
9057 value
= do_spec (input_file_compiler
->spec
);
9058 infiles
[i
].compiled
= true;
9060 this_file_error
= 1;
9061 else if (compare_debug
&& debug_check_temp_file
[0])
9064 inform (UNKNOWN_LOCATION
,
9065 "recompiling with %<-fcompare-debug%>");
9067 compare_debug
= -compare_debug
;
9068 n_switches
= n_switches_debug_check
[1];
9069 n_switches_alloc
= n_switches_alloc_debug_check
[1];
9070 switches
= switches_debug_check
[1];
9072 value
= do_spec (input_file_compiler
->spec
);
9074 compare_debug
= -compare_debug
;
9075 n_switches
= n_switches_debug_check
[0];
9076 n_switches_alloc
= n_switches_alloc_debug_check
[0];
9077 switches
= switches_debug_check
[0];
9081 error ("during %<-fcompare-debug%> recompilation");
9082 this_file_error
= 1;
9085 gcc_assert (debug_check_temp_file
[1]
9086 && filename_cmp (debug_check_temp_file
[0],
9087 debug_check_temp_file
[1]));
9090 inform (UNKNOWN_LOCATION
, "comparing final insns dumps");
9092 if (compare_files (debug_check_temp_file
))
9093 this_file_error
= 1;
9098 free (debug_check_temp_file
[0]);
9099 debug_check_temp_file
[0] = NULL
;
9101 free (debug_check_temp_file
[1]);
9102 debug_check_temp_file
[1] = NULL
;
9107 /* If this file's name does not contain a recognized suffix,
9108 record it as explicit linker input. */
9111 explicit_link_files
[i
] = 1;
9113 /* Clear the delete-on-failure queue, deleting the files in it
9114 if this compilation failed. */
9116 if (this_file_error
)
9118 delete_failure_queue ();
9121 /* If this compilation succeeded, don't delete those files later. */
9122 clear_failure_queue ();
9125 /* Reset the input file name to the first compile/object file name, for use
9126 with %b in LINK_SPEC. We use the first input file that we can find
9127 a compiler to compile it instead of using infiles.language since for
9128 languages other than C we use aliases that we then lookup later. */
9133 for (i
= 0; i
< n_infiles
; i
++)
9134 if (infiles
[i
].incompiler
9135 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
9137 set_input (infiles
[i
].name
);
9144 /* Make sure INPUT_FILE_NUMBER points to first available open
9146 input_file_number
= n_infiles
;
9147 if (lang_specific_pre_link ())
9152 /* If we have to run the linker, do it now. */
9155 driver::maybe_run_linker (const char *argv0
) const
9158 int linker_was_run
= 0;
9159 int num_linker_inputs
;
9161 /* Determine if there are any linker input files. */
9162 num_linker_inputs
= 0;
9163 for (i
= 0; (int) i
< n_infiles
; i
++)
9164 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
9165 num_linker_inputs
++;
9167 /* Arrange for temporary file names created during linking to take
9168 on names related with the linker output rather than with the
9169 inputs when appropriate. */
9170 if (outbase
&& *outbase
)
9174 char *tofree
= dumpdir
;
9175 gcc_checking_assert (strlen (dumpdir
) == dumpdir_length
);
9176 dumpdir
= concat (dumpdir
, outbase
, ".", NULL
);
9180 dumpdir
= concat (outbase
, ".", NULL
);
9181 dumpdir_length
+= strlen (outbase
) + 1;
9182 dumpdir_trailing_dash_added
= true;
9184 else if (dumpdir_trailing_dash_added
)
9186 gcc_assert (dumpdir
[dumpdir_length
- 1] == '-');
9187 dumpdir
[dumpdir_length
- 1] = '.';
9190 if (dumpdir_trailing_dash_added
)
9192 gcc_assert (dumpdir_length
> 0);
9193 gcc_assert (dumpdir
[dumpdir_length
- 1] == '.');
9198 input_basename
= outbase
= NULL
;
9199 outbase_length
= suffixed_basename_length
= basename_length
= 0;
9201 /* Run ld to link all the compiler output files. */
9203 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
9205 int tmp
= execution_count
;
9207 detect_jobserver ();
9211 #if HAVE_LTO_PLUGIN > 0
9212 #if HAVE_LTO_PLUGIN == 2
9213 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
9215 const char *fuse_linker_plugin
= "fuse-linker-plugin";
9219 /* We'll use ld if we can't find collect2. */
9220 if (! strcmp (linker_name_spec
, "collect2"))
9222 char *s
= find_a_program ("collect2");
9224 set_static_spec_shared (&linker_name_spec
, "ld");
9227 #if HAVE_LTO_PLUGIN > 0
9228 #if HAVE_LTO_PLUGIN == 2
9229 if (!switch_matches (fno_use_linker_plugin
,
9230 fno_use_linker_plugin
9231 + strlen (fno_use_linker_plugin
), 0))
9233 if (switch_matches (fuse_linker_plugin
,
9235 + strlen (fuse_linker_plugin
), 0))
9238 char *temp_spec
= find_a_file (&exec_prefixes
,
9239 LTOPLUGINSONAME
, R_OK
,
9242 fatal_error (input_location
,
9243 "%<-fuse-linker-plugin%>, but %s not found",
9245 linker_plugin_file_spec
= convert_white_space (temp_spec
);
9248 set_static_spec_shared (<o_gcc_spec
, argv0
);
9251 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
9253 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
9254 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
9256 if (print_subprocess_help
== 1)
9258 printf (_("\nLinker options\n==============\n\n"));
9259 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
9260 " to the linker.\n\n"));
9263 int value
= do_spec (link_command_spec
);
9266 linker_was_run
= (tmp
!= execution_count
);
9269 /* If options said don't run linker,
9270 complain about input files to be given to the linker. */
9272 if (! linker_was_run
&& !seen_error ())
9273 for (i
= 0; (int) i
< n_infiles
; i
++)
9274 if (explicit_link_files
[i
]
9275 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
9277 warning (0, "%s: linker input file unused because linking not done",
9279 if (access (outfiles
[i
], F_OK
) < 0)
9280 /* This is can be an indication the user specifed an errorneous
9281 separated option value, (or used the wrong prefix for an
9283 error ("%s: linker input file not found: %m", outfiles
[i
]);
9287 /* The end of "main". */
9290 driver::final_actions () const
9292 /* Delete some or all of the temporary files we made. */
9295 delete_failure_queue ();
9296 delete_temp_files ();
9298 if (totruncate_file
!= NULL
&& !seen_error ())
9299 /* Truncate file specified by -truncate.
9300 Used by lto-wrapper to reduce temporary disk-space usage. */
9301 truncate(totruncate_file
, 0);
9303 if (print_help_list
)
9305 printf (("\nFor bug reporting instructions, please see:\n"));
9306 printf ("%s\n", bug_report_url
);
9310 /* Detect whether jobserver is active and working. If not drop
9311 --jobserver-auth from MAKEFLAGS. */
9314 driver::detect_jobserver () const
9316 jobserver_info jinfo
;
9317 if (!jinfo
.is_active
&& !jinfo
.skipped_makeflags
.empty ())
9318 xputenv (xstrdup (jinfo
.skipped_makeflags
.c_str ()));
9321 /* Determine what the exit code of the driver should be. */
9324 driver::get_exit_code () const
9326 return (signal_count
!= 0 ? 2
9327 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
9331 /* Find the proper compilation spec for the file name NAME,
9332 whose length is LENGTH. LANGUAGE is the specified language,
9333 or 0 if this file is to be passed to the linker. */
9335 static struct compiler
*
9336 lookup_compiler (const char *name
, size_t length
, const char *language
)
9338 struct compiler
*cp
;
9340 /* If this was specified by the user to be a linker input, indicate that. */
9341 if (language
!= 0 && language
[0] == '*')
9344 /* Otherwise, look for the language, if one is spec'd. */
9347 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
9348 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
9350 if (name
!= NULL
&& strcmp (name
, "-") == 0
9351 && (strcmp (cp
->suffix
, "@c-header") == 0
9352 || strcmp (cp
->suffix
, "@c++-header") == 0)
9354 fatal_error (input_location
,
9355 "cannot use %<-%> as input filename for a "
9356 "precompiled header");
9361 error ("language %s not recognized", language
);
9365 /* Look for a suffix. */
9366 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
9368 if (/* The suffix `-' matches only the file name `-'. */
9369 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
9370 || (strlen (cp
->suffix
) < length
9371 /* See if the suffix matches the end of NAME. */
9372 && !strcmp (cp
->suffix
,
9373 name
+ length
- strlen (cp
->suffix
))
9378 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
9379 /* Look again, but case-insensitively this time. */
9381 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
9383 if (/* The suffix `-' matches only the file name `-'. */
9384 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
9385 || (strlen (cp
->suffix
) < length
9386 /* See if the suffix matches the end of NAME. */
9387 && ((!strcmp (cp
->suffix
,
9388 name
+ length
- strlen (cp
->suffix
))
9389 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
9390 && !strcasecmp (cp
->suffix
,
9391 name
+ length
- strlen (cp
->suffix
)))
9397 if (cp
>= compilers
)
9399 if (cp
->spec
[0] != '@')
9400 /* A non-alias entry: return it. */
9403 /* An alias entry maps a suffix to a language.
9404 Search for the language; pass 0 for NAME and LENGTH
9405 to avoid infinite recursion if language not found. */
9406 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
9412 save_string (const char *s
, int len
)
9414 char *result
= XNEWVEC (char, len
+ 1);
9416 gcc_checking_assert (strlen (s
) >= (unsigned int) len
);
9417 memcpy (result
, s
, len
);
9424 validate_switches_from_spec (const char *spec
, bool user
)
9426 const char *p
= spec
;
9432 || (*p
== 'W' && *++p
== '{')
9433 || (*p
== '@' && *++p
== '{')))
9434 /* We have a switch spec. */
9435 p
= validate_switches (p
+ 1, user
, *p
== '{');
9439 validate_all_switches (void)
9441 struct compiler
*comp
;
9442 struct spec_list
*spec
;
9444 for (comp
= compilers
; comp
->spec
; comp
++)
9445 validate_switches_from_spec (comp
->spec
, false);
9447 /* Look through the linked list of specs read from the specs file. */
9448 for (spec
= specs
; spec
; spec
= spec
->next
)
9449 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
9451 validate_switches_from_spec (link_command_spec
, false);
9454 /* Look at the switch-name that comes after START and mark as valid
9455 all supplied switches that match it. If BRACED, handle other
9456 switches after '|' and '&', and specs after ':' until ';' or '}',
9457 going back for more switches after ';'. Without BRACED, handle
9458 only one atom. Return a pointer to whatever follows the handled
9459 items, after the closing brace if BRACED. */
9462 validate_switches (const char *start
, bool user_spec
, bool braced
)
9464 const char *p
= start
;
9471 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
9483 if (*p
== '.' || *p
== ',')
9487 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
9488 || *p
== ',' || *p
== '.' || *p
== '@')
9493 starred
= true, p
++;
9499 /* Mark all matching switches as valid. */
9500 for (i
= 0; i
< n_switches
; i
++)
9501 if (!strncmp (switches
[i
].part1
, atom
, len
)
9502 && (starred
|| switches
[i
].part1
[len
] == '\0')
9503 && (switches
[i
].known
|| user_spec
))
9504 switches
[i
].validated
= true;
9511 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
9514 if (*p
&& p
[-1] == ':')
9516 while (*p
&& *p
!= ';' && *p
!= '}')
9521 if (*p
== '{' || *p
== '<')
9522 p
= validate_switches (p
+1, user_spec
, *p
== '{');
9523 else if (p
[0] == 'W' && p
[1] == '{')
9524 p
= validate_switches (p
+2, user_spec
, true);
9525 else if (p
[0] == '@' && p
[1] == '{')
9526 p
= validate_switches (p
+2, user_spec
, true);
9533 if (*p
&& p
[-1] == ';')
9547 static struct mdswitchstr
*mdswitches
;
9548 static int n_mdswitches
;
9550 /* Check whether a particular argument was used. The first time we
9551 canonicalize the switches to keep only the ones we care about. */
9556 int operator () (const char *p
, int len
);
9563 const char *replace
;
9568 mswitchstr
*mswitches
;
9573 used_arg_t used_arg
;
9576 used_arg_t::operator () (const char *p
, int len
)
9582 struct mswitchstr
*matches
;
9586 /* Break multilib_matches into the component strings of string
9587 and replacement string. */
9588 for (q
= multilib_matches
; *q
!= '\0'; q
++)
9593 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
9595 q
= multilib_matches
;
9604 fatal_error (input_location
, "multilib spec %qs is invalid",
9609 matches
[i
].len
= q
- matches
[i
].str
;
9611 matches
[i
].replace
= ++q
;
9612 while (*q
!= ';' && *q
!= '\0')
9615 goto invalid_matches
;
9618 matches
[i
].rep_len
= q
- matches
[i
].replace
;
9624 /* Now build a list of the replacement string for switches that we care
9625 about. Make sure we allocate at least one entry. This prevents
9626 xmalloc from calling fatal, and prevents us from re-executing this
9629 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
9630 for (i
= 0; i
< n_switches
; i
++)
9631 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
9633 int xlen
= strlen (switches
[i
].part1
);
9634 for (j
= 0; j
< cnt
; j
++)
9635 if (xlen
== matches
[j
].len
9636 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
9638 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
9639 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
9640 mswitches
[n_mswitches
].replace
= (char *) 0;
9641 mswitches
[n_mswitches
].rep_len
= 0;
9647 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
9648 on the command line nor any options mutually incompatible with
9650 for (i
= 0; i
< n_mdswitches
; i
++)
9654 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
9660 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
9661 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
9663 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
9670 if (*q
!= ' ' && *q
!= '\0')
9672 while (*r
!= ' ' && *r
!= '\0')
9675 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
9678 if (used_arg (r
, q
- r
))
9683 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
9684 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
9685 mswitches
[n_mswitches
].replace
= (char *) 0;
9686 mswitches
[n_mswitches
].rep_len
= 0;
9699 for (i
= 0; i
< n_mswitches
; i
++)
9700 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
9706 void used_arg_t::finalize ()
9708 XDELETEVEC (mswitches
);
9715 default_arg (const char *p
, int len
)
9719 for (i
= 0; i
< n_mdswitches
; i
++)
9720 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
9726 /* Work out the subdirectory to use based on the options. The format of
9727 multilib_select is a list of elements. Each element is a subdirectory
9728 name followed by a list of options followed by a semicolon. The format
9729 of multilib_exclusions is the same, but without the preceding
9730 directory. First gcc will check the exclusions, if none of the options
9731 beginning with an exclamation point are present, and all of the other
9732 options are present, then we will ignore this completely. Passing
9733 that, gcc will consider each multilib_select in turn using the same
9734 rules for matching the options. If a match is found, that subdirectory
9736 A subdirectory name is optionally followed by a colon and the corresponding
9740 set_multilib_dir (void)
9743 unsigned int this_path_len
;
9744 const char *this_path
, *this_arg
;
9745 const char *start
, *end
;
9747 int ok
, ndfltok
, first
;
9750 start
= multilib_defaults
;
9751 while (*start
== ' ' || *start
== '\t')
9753 while (*start
!= '\0')
9756 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
9758 while (*start
== ' ' || *start
== '\t')
9766 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
9767 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
9769 while (*start
== ' ' || *start
== '\t')
9775 for (end
= start
+ 1;
9776 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
9779 obstack_grow (&multilib_obstack
, start
, end
- start
);
9780 obstack_1grow (&multilib_obstack
, 0);
9781 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
9782 mdswitches
[i
++].len
= end
- start
;
9789 p
= multilib_exclusions
;
9792 /* Ignore newlines. */
9799 /* Check the arguments. */
9806 fatal_error (input_location
, "multilib exclusions %qs is invalid",
9807 multilib_exclusions
);
9817 while (*p
!= ' ' && *p
!= ';')
9820 goto invalid_exclusions
;
9824 if (*this_arg
!= '!')
9832 ok
= used_arg (this_arg
, p
- this_arg
);
9847 p
= multilib_select
;
9849 /* Append multilib reuse rules if any. With those rules, we can reuse
9850 one multilib for certain different options sets. */
9851 if (strlen (multilib_reuse
) > 0)
9852 p
= concat (p
, multilib_reuse
, NULL
);
9856 /* Ignore newlines. */
9863 /* Get the initial path. */
9870 fatal_error (input_location
, "multilib select %qs %qs is invalid",
9871 multilib_select
, multilib_reuse
);
9875 this_path_len
= p
- this_path
;
9877 /* Check the arguments. */
9884 goto invalid_select
;
9893 while (*p
!= ' ' && *p
!= ';')
9896 goto invalid_select
;
9900 if (*this_arg
!= '!')
9908 /* If this is a default argument, we can just ignore it.
9909 This is true even if this_arg begins with '!'. Beginning
9910 with '!' does not mean that this argument is necessarily
9911 inappropriate for this library: it merely means that
9912 there is a more specific library which uses this
9913 argument. If this argument is a default, we need not
9914 consider that more specific library. */
9915 ok
= used_arg (this_arg
, p
- this_arg
);
9922 if (default_arg (this_arg
, p
- this_arg
))
9931 if (this_path_len
!= 1
9932 || this_path
[0] != '.')
9934 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
9937 strncpy (new_multilib_dir
, this_path
, this_path_len
);
9938 new_multilib_dir
[this_path_len
] = '\0';
9939 q
= strchr (new_multilib_dir
, ':');
9942 multilib_dir
= new_multilib_dir
;
9949 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
9951 while (q
< end
&& *q
!= ':')
9955 const char *q2
= q
+ 1, *ml_end
= end
;
9956 char *new_multilib_os_dir
;
9958 while (q2
< end
&& *q2
!= ':')
9962 if (ml_end
- q
== 1)
9963 multilib_os_dir
= xstrdup (".");
9966 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
9967 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
9968 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
9969 multilib_os_dir
= new_multilib_os_dir
;
9972 if (q2
< end
&& *q2
== ':')
9974 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
9975 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
9976 new_multiarch_dir
[end
- q2
- 1] = '\0';
9977 multiarch_dir
= new_multiarch_dir
;
9987 targetm_common
.compute_multilib (
9994 multilib_exclusions
,
9997 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
9998 && strcmp (multilib_os_dir
, ".") == 0)
10000 free (CONST_CAST (char *, multilib_os_dir
));
10001 multilib_os_dir
= NULL
;
10003 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
10004 multilib_os_dir
= multilib_dir
;
10007 /* Print out the multiple library subdirectory selection
10008 information. This prints out a series of lines. Each line looks
10009 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
10010 required. Only the desired options are printed out, the negative
10011 matches. The options are print without a leading dash. There are
10012 no spaces to make it easy to use the information in the shell.
10013 Each subdirectory is printed only once. This assumes the ordering
10014 generated by the genmultilib script. Also, we leave out ones that match
10018 print_multilib_info (void)
10020 const char *p
= multilib_select
;
10021 const char *last_path
= 0, *this_path
;
10024 unsigned int last_path_len
= 0;
10029 /* Ignore newlines. */
10036 /* Get the initial path. */
10043 fatal_error (input_location
,
10044 "multilib select %qs is invalid", multilib_select
);
10050 /* When --disable-multilib was used but target defines
10051 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
10052 with .:: for multiarch configurations) are there just to find
10053 multilib_os_dir, so skip them from output. */
10054 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
10057 /* Check for matches with the multilib_exclusions. We don't bother
10058 with the '!' in either list. If any of the exclusion rules match
10059 all of its options with the select rule, we skip it. */
10061 const char *e
= multilib_exclusions
;
10062 const char *this_arg
;
10067 /* Ignore newlines. */
10074 /* Check the arguments. */
10083 fatal_error (input_location
,
10084 "multilib exclusion %qs is invalid",
10085 multilib_exclusions
);
10096 while (*e
!= ' ' && *e
!= ';')
10099 goto invalid_exclusion
;
10107 int len
= e
- this_arg
;
10110 goto invalid_select
;
10114 while (*q
!= ' ' && *q
!= ';')
10117 goto invalid_select
;
10121 if (! strncmp (arg
, this_arg
,
10122 (len
< q
- arg
) ? q
- arg
: len
)
10123 || default_arg (this_arg
, e
- this_arg
))
10153 /* If this is a duplicate, skip it. */
10154 skip
= (last_path
!= 0
10155 && (unsigned int) (p
- this_path
) == last_path_len
10156 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
10158 last_path
= this_path
;
10159 last_path_len
= p
- this_path
;
10162 /* If all required arguments are default arguments, and no default
10163 arguments appear in the ! argument list, then we can skip it.
10164 We will already have printed a directory identical to this one
10165 which does not require that default argument. */
10169 bool default_arg_ok
= false;
10177 goto invalid_select
;
10188 while (*q
!= ' ' && *q
!= ';')
10191 goto invalid_select
;
10195 if (default_arg (arg
, q
- arg
))
10197 /* Stop checking if any default arguments appeared in not
10201 default_arg_ok
= false;
10205 default_arg_ok
= true;
10209 /* Stop checking if any required argument is not provided by
10210 default arguments. */
10211 default_arg_ok
= false;
10219 /* Make sure all default argument is OK for this multi-lib set. */
10220 if (default_arg_ok
)
10230 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
10241 goto invalid_select
;
10249 use_arg
= *p
!= '!';
10254 while (*p
!= ' ' && *p
!= ';')
10257 goto invalid_select
;
10269 /* If there are extra options, print them now. */
10270 if (multilib_extra
&& *multilib_extra
)
10272 int print_at
= true;
10275 for (q
= multilib_extra
; *q
!= '\0'; q
++)
10296 /* getenv built-in spec function.
10298 Returns the value of the environment variable given by its first argument,
10299 concatenated with the second argument. If the variable is not defined, a
10300 fatal error is issued unless such undefs are internally allowed, in which
10301 case the variable name prefixed by a '/' is used as the variable value.
10303 The leading '/' allows using the result at a spot where a full path would
10304 normally be expected and when the actual value doesn't really matter since
10305 undef vars are allowed. */
10307 static const char *
10308 getenv_spec_function (int argc
, const char **argv
)
10311 const char *varname
;
10321 value
= env
.get (varname
);
10323 /* If the variable isn't defined and this is allowed, craft our expected
10324 return value. Assume variable names used in specs strings don't contain
10325 any active spec character so don't need escaping. */
10326 if (!value
&& spec_undefvar_allowed
)
10328 result
= XNEWVAR (char, strlen(varname
) + 2);
10329 sprintf (result
, "/%s", varname
);
10334 fatal_error (input_location
,
10335 "environment variable %qs not defined", varname
);
10337 /* We have to escape every character of the environment variable so
10338 they are not interpreted as active spec characters. A
10339 particularly painful case is when we are reading a variable
10340 holding a windows path complete with \ separators. */
10341 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
10342 result
= XNEWVAR (char, len
);
10343 for (ptr
= result
; *value
; ptr
+= 2)
10349 strcpy (ptr
, argv
[1]);
10354 /* if-exists built-in spec function.
10356 Checks to see if the file specified by the absolute pathname in
10357 ARGS exists. Returns that pathname if found.
10359 The usual use for this function is to check for a library file
10360 (whose name has been expanded with %s). */
10362 static const char *
10363 if_exists_spec_function (int argc
, const char **argv
)
10365 /* Must have only one argument. */
10366 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
10372 /* if-exists-else built-in spec function.
10374 This is like if-exists, but takes an additional argument which
10375 is returned if the first argument does not exist. */
10377 static const char *
10378 if_exists_else_spec_function (int argc
, const char **argv
)
10380 /* Must have exactly two arguments. */
10384 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
10390 /* if-exists-then-else built-in spec function.
10392 Checks to see if the file specified by the absolute pathname in
10393 the first arg exists. Returns the second arg if so, otherwise returns
10394 the third arg if it is present. */
10396 static const char *
10397 if_exists_then_else_spec_function (int argc
, const char **argv
)
10400 /* Must have two or three arguments. */
10401 if (argc
!= 2 && argc
!= 3)
10404 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
10413 /* sanitize built-in spec function.
10415 This returns non-NULL, if sanitizing address, thread or
10416 any of the undefined behavior sanitizers. */
10418 static const char *
10419 sanitize_spec_function (int argc
, const char **argv
)
10424 if (strcmp (argv
[0], "address") == 0)
10425 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
10426 if (strcmp (argv
[0], "hwaddress") == 0)
10427 return (flag_sanitize
& SANITIZE_USER_HWADDRESS
) ? "" : NULL
;
10428 if (strcmp (argv
[0], "kernel-address") == 0)
10429 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
10430 if (strcmp (argv
[0], "kernel-hwaddress") == 0)
10431 return (flag_sanitize
& SANITIZE_KERNEL_HWADDRESS
) ? "" : NULL
;
10432 if (strcmp (argv
[0], "thread") == 0)
10433 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
10434 if (strcmp (argv
[0], "undefined") == 0)
10435 return ((flag_sanitize
10436 & ~flag_sanitize_trap
10437 & (SANITIZE_UNDEFINED
| SANITIZE_UNDEFINED_NONDEFAULT
)))
10439 if (strcmp (argv
[0], "leak") == 0)
10440 return ((flag_sanitize
10441 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
10442 == SANITIZE_LEAK
) ? "" : NULL
;
10446 /* replace-outfile built-in spec function.
10448 This looks for the first argument in the outfiles array's name and
10449 replaces it with the second argument. */
10451 static const char *
10452 replace_outfile_spec_function (int argc
, const char **argv
)
10455 /* Must have exactly two arguments. */
10459 for (i
= 0; i
< n_infiles
; i
++)
10461 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
10462 outfiles
[i
] = xstrdup (argv
[1]);
10467 /* remove-outfile built-in spec function.
10469 * This looks for the first argument in the outfiles array's name and
10472 static const char *
10473 remove_outfile_spec_function (int argc
, const char **argv
)
10476 /* Must have exactly one argument. */
10480 for (i
= 0; i
< n_infiles
; i
++)
10482 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
10483 outfiles
[i
] = NULL
;
10488 /* Given two version numbers, compares the two numbers.
10489 A version number must match the regular expression
10490 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
10493 compare_version_strings (const char *v1
, const char *v2
)
10498 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
10499 REG_EXTENDED
| REG_NOSUB
) != 0)
10501 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
10502 if (rresult
== REG_NOMATCH
)
10503 fatal_error (input_location
, "invalid version number %qs", v1
);
10504 else if (rresult
!= 0)
10506 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
10507 if (rresult
== REG_NOMATCH
)
10508 fatal_error (input_location
, "invalid version number %qs", v2
);
10509 else if (rresult
!= 0)
10512 return strverscmp (v1
, v2
);
10516 /* version_compare built-in spec function.
10518 This takes an argument of the following form:
10520 <comparison-op> <arg1> [<arg2>] <switch> <result>
10522 and produces "result" if the comparison evaluates to true,
10523 and nothing if it doesn't.
10525 The supported <comparison-op> values are:
10527 >= true if switch is a later (or same) version than arg1
10529 < true if switch is an earlier version than arg1
10531 >< true if switch is arg1 or later, and earlier than arg2
10532 <> true if switch is earlier than arg1 or is arg2 or later
10534 If the switch is not present, the condition is false unless
10535 the first character of the <comparison-op> is '!'.
10538 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
10539 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
10541 static const char *
10542 version_compare_spec_function (int argc
, const char **argv
)
10546 const char *switch_value
= NULL
;
10551 fatal_error (input_location
, "too few arguments to %%:version-compare");
10552 if (argv
[0][0] == '\0')
10554 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
10556 if (argc
!= nargs
+ 3)
10557 fatal_error (input_location
, "too many arguments to %%:version-compare");
10559 switch_len
= strlen (argv
[nargs
+ 1]);
10560 for (i
= 0; i
< n_switches
; i
++)
10561 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
10562 && check_live_switch (i
, switch_len
))
10563 switch_value
= switches
[i
].part1
+ switch_len
;
10565 if (switch_value
== NULL
)
10566 comp1
= comp2
= -1;
10569 comp1
= compare_version_strings (switch_value
, argv
[1]);
10571 comp2
= compare_version_strings (switch_value
, argv
[2]);
10573 comp2
= -1; /* This value unused. */
10576 switch (argv
[0][0] << 8 | argv
[0][1])
10578 case '>' << 8 | '=':
10579 result
= comp1
>= 0;
10581 case '!' << 8 | '<':
10582 result
= comp1
>= 0 || switch_value
== NULL
;
10585 result
= comp1
< 0;
10587 case '!' << 8 | '>':
10588 result
= comp1
< 0 || switch_value
== NULL
;
10590 case '>' << 8 | '<':
10591 result
= comp1
>= 0 && comp2
< 0;
10593 case '<' << 8 | '>':
10594 result
= comp1
< 0 || comp2
>= 0;
10598 fatal_error (input_location
,
10599 "unknown operator %qs in %%:version-compare", argv
[0]);
10604 return argv
[nargs
+ 2];
10607 /* %:include builtin spec function. This differs from %include in that it
10608 can be nested inside a spec, and thus be conditionalized. It takes
10609 one argument, the filename, and looks for it in the startfile path.
10610 The result is always NULL, i.e. an empty expansion. */
10612 static const char *
10613 include_spec_function (int argc
, const char **argv
)
10620 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
10621 read_specs (file
? file
: argv
[0], false, false);
10626 /* %:find-file spec function. This function replaces its argument by
10627 the file found through find_file, that is the -print-file-name gcc
10629 static const char *
10630 find_file_spec_function (int argc
, const char **argv
)
10637 file
= find_file (argv
[0]);
10642 /* %:find-plugindir spec function. This function replaces its argument
10643 by the -iplugindir=<dir> option. `dir' is found through find_file, that
10644 is the -print-file-name gcc program option. */
10645 static const char *
10646 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
10648 const char *option
;
10653 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
10658 /* %:print-asm-header spec function. Print a banner to say that the
10659 following output is from the assembler. */
10661 static const char *
10662 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
10663 const char **argv ATTRIBUTE_UNUSED
)
10665 printf (_("Assembler options\n=================\n\n"));
10666 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
10671 /* Get a random number for -frandom-seed */
10673 static unsigned HOST_WIDE_INT
10674 get_random_number (void)
10676 unsigned HOST_WIDE_INT ret
= 0;
10679 fd
= open ("/dev/urandom", O_RDONLY
);
10682 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
10688 /* Get some more or less random data. */
10689 #ifdef HAVE_GETTIMEOFDAY
10693 gettimeofday (&tv
, NULL
);
10694 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
10698 time_t now
= time (NULL
);
10700 if (now
!= (time_t)-1)
10701 ret
= (unsigned) now
;
10705 return ret
^ getpid ();
10708 /* %:compare-debug-dump-opt spec function. Save the last argument,
10709 expected to be the last -fdump-final-insns option, or generate a
10712 static const char *
10713 compare_debug_dump_opt_spec_function (int arg
,
10714 const char **argv ATTRIBUTE_UNUSED
)
10719 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
10722 fatal_error (input_location
,
10723 "too many arguments to %%:compare-debug-dump-opt");
10725 do_spec_2 ("%{fdump-final-insns=*:%*}", NULL
);
10726 do_spec_1 (" ", 0, NULL
);
10728 if (argbuf
.length () > 0
10729 && strcmp (argv
[argbuf
.length () - 1], ".") != 0)
10731 if (!compare_debug
)
10734 name
= xstrdup (argv
[argbuf
.length () - 1]);
10739 if (argbuf
.length () > 0)
10740 do_spec_2 ("%B.gkd", NULL
);
10741 else if (!compare_debug
)
10744 do_spec_2 ("%{!save-temps*:%g.gkd}%{save-temps*:%B.gkd}", NULL
);
10746 do_spec_1 (" ", 0, NULL
);
10748 gcc_assert (argbuf
.length () > 0);
10750 name
= xstrdup (argbuf
.last ());
10752 char *arg
= quote_spec (xstrdup (name
));
10753 ret
= concat ("-fdump-final-insns=", arg
, NULL
);
10757 which
= compare_debug
< 0;
10758 debug_check_temp_file
[which
] = name
;
10762 unsigned HOST_WIDE_INT value
= get_random_number ();
10764 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
10770 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
10781 /* %:compare-debug-self-opt spec function. Expands to the options
10782 that are to be passed in the second compilation of
10785 static const char *
10786 compare_debug_self_opt_spec_function (int arg
,
10787 const char **argv ATTRIBUTE_UNUSED
)
10790 fatal_error (input_location
,
10791 "too many arguments to %%:compare-debug-self-opt");
10793 if (compare_debug
>= 0)
10797 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
10798 %<fdump-final-insns=* -w -S -o %j \
10799 %{!fcompare-debug-second:-fcompare-debug-second} \
10800 ", compare_debug_opt
, NULL
);
10803 /* %:pass-through-libs spec function. Finds all -l options and input
10804 file names in the lib spec passed to it, and makes a list of them
10805 prepended with the plugin option to cause them to be passed through
10806 to the final link after all the new object files have been added. */
10809 pass_through_libs_spec_func (int argc
, const char **argv
)
10811 char *prepended
= xstrdup (" ");
10813 /* Shlemiel the painter's algorithm. Innately horrible, but at least
10814 we know that there will never be more than a handful of strings to
10815 concat, and it's only once per run, so it's not worth optimising. */
10816 for (n
= 0; n
< argc
; n
++)
10818 char *old
= prepended
;
10819 /* Anything that isn't an option is a full path to an output
10820 file; pass it through if it ends in '.a'. Among options,
10822 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
10824 const char *lopt
= argv
[n
] + 2;
10825 /* Handle both joined and non-joined -l options. If for any
10826 reason there's a trailing -l with no joined or following
10827 arg just discard it. */
10828 if (!*lopt
&& ++n
>= argc
)
10832 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
10835 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
10837 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
10838 argv
[n
], " ", NULL
);
10840 if (prepended
!= old
)
10847 not_actual_file_p (const char *name
)
10849 return (strcmp (name
, "-") == 0
10850 || strcmp (name
, HOST_BIT_BUCKET
) == 0);
10853 /* %:dumps spec function. Take an optional argument that overrides
10854 the default extension for -dumpbase and -dumpbase-ext.
10855 Return -dumpdir, -dumpbase and -dumpbase-ext, if needed. */
10857 dumps_spec_func (int argc
, const char **argv ATTRIBUTE_UNUSED
)
10859 const char *ext
= dumpbase_ext
;
10862 char *args
[3] = { NULL
, NULL
, NULL
};
10865 /* Do not compute a default for -dumpbase-ext when -dumpbase was
10866 given explicitly. */
10867 if (dumpbase
&& *dumpbase
&& !ext
)
10872 /* Do not override the explicitly-specified -dumpbase-ext with
10873 the specs-provided overrider. */
10877 else if (argc
!= 0)
10878 fatal_error (input_location
, "too many arguments for %%:dumps");
10882 p
= quote_spec_arg (xstrdup (dumpdir
));
10883 args
[nargs
++] = concat (" -dumpdir ", p
, NULL
);
10888 ext
= input_basename
+ basename_length
;
10890 /* Use the precomputed outbase, or compute dumpbase from
10891 input_basename, just like %b would. */
10894 if (dumpbase
&& *dumpbase
)
10896 base
= xstrdup (dumpbase
);
10897 p
= base
+ outbase_length
;
10898 gcc_checking_assert (strncmp (base
, outbase
, outbase_length
) == 0);
10899 gcc_checking_assert (strcmp (p
, ext
) == 0);
10901 else if (outbase_length
)
10903 base
= xstrndup (outbase
, outbase_length
);
10908 base
= xstrndup (input_basename
, suffixed_basename_length
);
10909 p
= base
+ basename_length
;
10912 if (compare_debug
< 0 || !p
|| strcmp (p
, ext
) != 0)
10918 if (compare_debug
< 0)
10923 p
= concat (base
, gk
, ext
, NULL
);
10929 base
= quote_spec_arg (base
);
10930 args
[nargs
++] = concat (" -dumpbase ", base
, NULL
);
10935 p
= quote_spec_arg (xstrdup (ext
));
10936 args
[nargs
++] = concat (" -dumpbase-ext ", p
, NULL
);
10940 const char *ret
= concat (args
[0], args
[1], args
[2], NULL
);
10942 free (args
[--nargs
]);
10947 /* Returns "" if ARGV[ARGC - 2] is greater than ARGV[ARGC-1].
10948 Otherwise, return NULL. */
10950 static const char *
10951 greater_than_spec_func (int argc
, const char **argv
)
10958 gcc_assert (argc
>= 2);
10960 long arg
= strtol (argv
[argc
- 2], &converted
, 10);
10961 gcc_assert (converted
!= argv
[argc
- 2]);
10963 long lim
= strtol (argv
[argc
- 1], &converted
, 10);
10964 gcc_assert (converted
!= argv
[argc
- 1]);
10972 /* Returns "" if debug_info_level is greater than ARGV[ARGC-1].
10973 Otherwise, return NULL. */
10975 static const char *
10976 debug_level_greater_than_spec_func (int argc
, const char **argv
)
10981 fatal_error (input_location
,
10982 "wrong number of arguments to %%:debug-level-gt");
10984 long arg
= strtol (argv
[0], &converted
, 10);
10985 gcc_assert (converted
!= argv
[0]);
10987 if (debug_info_level
> arg
)
10993 /* Returns "" if dwarf_version is greater than ARGV[ARGC-1].
10994 Otherwise, return NULL. */
10996 static const char *
10997 dwarf_version_greater_than_spec_func (int argc
, const char **argv
)
11002 fatal_error (input_location
,
11003 "wrong number of arguments to %%:dwarf-version-gt");
11005 long arg
= strtol (argv
[0], &converted
, 10);
11006 gcc_assert (converted
!= argv
[0]);
11008 if (dwarf_version
> arg
)
11015 path_prefix_reset (path_prefix
*prefix
)
11017 struct prefix_list
*iter
, *next
;
11018 iter
= prefix
->plist
;
11022 free (const_cast <char *> (iter
->prefix
));
11027 prefix
->max_len
= 0;
11030 /* The function takes 3 arguments: OPTION name, file name and location
11031 where we search for Fortran modules.
11032 When the FILE is found by find_file, return OPTION=path_to_file. */
11034 static const char *
11035 find_fortran_preinclude_file (int argc
, const char **argv
)
11037 char *result
= NULL
;
11041 struct path_prefix prefixes
= { 0, 0, "preinclude" };
11043 /* Search first for 'finclude' folder location for a header file
11044 installed by the compiler (similar to omp_lib.h). */
11045 add_prefix (&prefixes
, argv
[2], NULL
, 0, 0, 0);
11046 #ifdef TOOL_INCLUDE_DIR
11047 /* Then search: <prefix>/<target>/<include>/finclude */
11048 add_prefix (&prefixes
, TOOL_INCLUDE_DIR
"/finclude/",
11051 #ifdef NATIVE_SYSTEM_HEADER_DIR
11052 /* Then search: <sysroot>/usr/include/finclude/<multilib> */
11053 add_sysrooted_hdrs_prefix (&prefixes
, NATIVE_SYSTEM_HEADER_DIR
"/finclude/",
11057 const char *path
= find_a_file (&include_prefixes
, argv
[1], R_OK
, false);
11059 result
= concat (argv
[0], path
, NULL
);
11062 path
= find_a_file (&prefixes
, argv
[1], R_OK
, false);
11064 result
= concat (argv
[0], path
, NULL
);
11067 path_prefix_reset (&prefixes
);
11071 /* The function takes any number of arguments and joins them together.
11073 This seems to be necessary to build "-fjoined=foo.b" from "-fseparate foo.a"
11074 with a %{fseparate*:-fjoined=%.b$*} rule without adding undesired spaces:
11075 when doing $* replacement we first replace $* with the rest of the switch
11076 (in this case ""), and then add any arguments as arguments after the result,
11077 resulting in "-fjoined= foo.b". Using this function with e.g.
11078 %{fseparate*:-fjoined=%:join(%.b$*)} gets multiple words as separate argv
11079 elements instead of separated by spaces, and we paste them together. */
11081 static const char *
11082 join_spec_func (int argc
, const char **argv
)
11086 for (int i
= 0; i
< argc
; ++i
)
11087 obstack_grow (&obstack
, argv
[i
], strlen (argv
[i
]));
11088 obstack_1grow (&obstack
, '\0');
11089 return XOBFINISH (&obstack
, const char *);
11092 /* If any character in ORIG fits QUOTE_P (_, P), reallocate the string
11093 so as to precede every one of them with a backslash. Return the
11094 original string or the reallocated one. */
11096 static inline char *
11097 quote_string (char *orig
, bool (*quote_p
)(char, void *), void *p
)
11099 int len
, number_of_space
= 0;
11101 for (len
= 0; orig
[len
]; len
++)
11102 if (quote_p (orig
[len
], p
))
11105 if (number_of_space
)
11107 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
11109 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
11111 if (quote_p (orig
[j
], p
))
11112 new_spec
[k
++] = '\\';
11113 new_spec
[k
] = orig
[j
];
11122 /* Return true iff C is any of the characters convert_white_space
11126 whitespace_to_convert_p (char c
, void *)
11128 return (c
== ' ' || c
== '\t');
11131 /* Insert backslash before spaces in ORIG (usually a file path), to
11132 avoid being broken by spec parser.
11134 This function is needed as do_spec_1 treats white space (' ' and '\t')
11135 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
11136 the file name should be treated as a single argument rather than being
11137 broken into multiple. Solution is to insert '\\' before the space in a
11140 This function converts and only converts all occurrence of ' '
11141 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
11143 "a b" -> "a\\ \\ b"
11145 "a\\ b" -> "a\\\\ b"
11147 orig: input null-terminating string that was allocated by xalloc. The
11148 memory it points to might be freed in this function. Behavior undefined
11149 if ORIG wasn't xalloced or was freed already at entry.
11151 Return: ORIG if no conversion needed. Otherwise a newly allocated string
11152 that was converted from ORIG. */
11155 convert_white_space (char *orig
)
11157 return quote_string (orig
, whitespace_to_convert_p
, NULL
);
11160 /* Return true iff C matches any of the spec active characters. */
11162 quote_spec_char_p (char c
, void *)
11179 /* Like convert_white_space, but deactivate all active spec chars by
11182 static inline char *
11183 quote_spec (char *orig
)
11185 return quote_string (orig
, quote_spec_char_p
, NULL
);
11188 /* Like quote_spec, but also turn an empty string into the spec for an
11191 static inline char *
11192 quote_spec_arg (char *orig
)
11197 return xstrdup ("%\"");
11200 return quote_spec (orig
);
11203 /* Restore all state within gcc.cc to the initial state, so that the driver
11204 code can be safely re-run in-process.
11206 Many const char * variables are referenced by static specs (see
11207 INIT_STATIC_SPEC above). These variables are restored to their default
11208 values by a simple loop over the static specs.
11210 For other variables, we directly restore them all to their initial
11211 values (often implicitly 0).
11213 Free the various obstacks in this file, along with "opts_obstack"
11216 This function also restores any environment variables that were changed. */
11219 driver::finalize ()
11222 diagnostic_finish (global_dc
);
11225 at_file_supplied
= 0;
11226 print_help_list
= 0;
11228 verbose_only_flag
= 0;
11229 print_subprocess_help
= 0;
11231 report_times_to_file
= NULL
;
11232 target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
11233 target_system_root_changed
= 0;
11234 target_sysroot_suffix
= 0;
11235 target_sysroot_hdrs_suffix
= 0;
11236 save_temps_flag
= SAVE_TEMPS_NONE
;
11237 save_temps_overrides_dumpdir
= false;
11238 dumpdir_trailing_dash_added
= false;
11241 free (dumpbase_ext
);
11243 dumpdir
= dumpbase
= dumpbase_ext
= outbase
= NULL
;
11244 dumpdir_length
= outbase_length
= 0;
11245 spec_machine
= DEFAULT_TARGET_MACHINE
;
11246 greatest_status
= 1;
11248 obstack_free (&obstack
, NULL
);
11249 obstack_free (&opts_obstack
, NULL
); /* in opts.cc */
11250 obstack_free (&collect_obstack
, NULL
);
11252 link_command_spec
= LINK_COMMAND_SPEC
;
11254 obstack_free (&multilib_obstack
, NULL
);
11256 user_specs_head
= NULL
;
11257 user_specs_tail
= NULL
;
11259 /* Within the "compilers" vec, the fields "suffix" and "spec" were
11260 statically allocated for the default compilers, but dynamically
11261 allocated for additional compilers. Delete them for the latter. */
11262 for (int i
= n_default_compilers
; i
< n_compilers
; i
++)
11264 free (const_cast <char *> (compilers
[i
].suffix
));
11265 free (const_cast <char *> (compilers
[i
].spec
));
11267 XDELETEVEC (compilers
);
11271 linker_options
.truncate (0);
11272 assembler_options
.truncate (0);
11273 preprocessor_options
.truncate (0);
11275 path_prefix_reset (&exec_prefixes
);
11276 path_prefix_reset (&startfile_prefixes
);
11277 path_prefix_reset (&include_prefixes
);
11279 machine_suffix
= 0;
11280 just_machine_suffix
= 0;
11281 gcc_exec_prefix
= 0;
11282 gcc_libexec_prefix
= 0;
11283 set_static_spec_shared (&md_exec_prefix
, MD_EXEC_PREFIX
);
11284 set_static_spec_shared (&md_startfile_prefix
, MD_STARTFILE_PREFIX
);
11285 set_static_spec_shared (&md_startfile_prefix_1
, MD_STARTFILE_PREFIX_1
);
11287 multilib_os_dir
= 0;
11290 /* Free any specs dynamically-allocated by set_spec.
11291 These will be at the head of the list, before the
11292 statically-allocated ones. */
11295 while (specs
!= static_specs
)
11297 spec_list
*next
= specs
->next
;
11298 free (const_cast <char *> (specs
->name
));
11304 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
11306 spec_list
*sl
= &static_specs
[i
];
11309 free (const_cast <char *> (*(sl
->ptr_spec
)));
11310 sl
->alloc_p
= false;
11312 *(sl
->ptr_spec
) = sl
->default_ptr
;
11315 extra_specs
= NULL
;
11318 processing_spec_function
= 0;
11326 execution_count
= 0;
11329 temp_filename
= NULL
;
11330 temp_filename_length
= 0;
11331 always_delete_queue
= NULL
;
11332 failure_delete_queue
= NULL
;
11334 XDELETEVEC (switches
);
11337 n_switches_alloc
= 0;
11340 compare_debug_second
= 0;
11341 compare_debug_opt
= NULL
;
11342 for (int i
= 0; i
< 2; i
++)
11344 switches_debug_check
[i
] = NULL
;
11345 n_switches_debug_check
[i
] = 0;
11346 n_switches_alloc_debug_check
[i
] = 0;
11347 debug_check_temp_file
[i
] = NULL
;
11350 XDELETEVEC (infiles
);
11353 n_infiles_alloc
= 0;
11355 combine_inputs
= false;
11356 added_libraries
= 0;
11357 XDELETEVEC (outfiles
);
11360 last_language_n_infiles
= 0;
11361 gcc_input_filename
= NULL
;
11362 input_file_number
= 0;
11363 input_filename_length
= 0;
11364 basename_length
= 0;
11365 suffixed_basename_length
= 0;
11366 input_basename
= NULL
;
11367 input_suffix
= NULL
;
11368 /* We don't need to purge "input_stat", just to unset "input_stat_set". */
11369 input_stat_set
= 0;
11370 input_file_compiler
= NULL
;
11372 delete_this_arg
= 0;
11373 this_is_output_file
= 0;
11374 this_is_library_file
= 0;
11375 this_is_linker_script
= 0;
11376 input_from_pipe
= 0;
11377 suffix_subst
= NULL
;
11379 XDELETEVEC (mdswitches
);
11383 used_arg
.finalize ();
11387 Targets can provide configure-time default options in
11388 OPTION_DEFAULT_SPECS. The jit needs to access these, but
11389 they are expressed in the spec language.
11391 Run just enough of the driver to be able to expand these
11392 specs, and then call the callback CB on each
11393 such option. The options strings are *without* a leading
11394 '-' character e.g. ("march=x86-64"). Finally, clean up. */
11397 driver_get_configure_time_options (void (*cb
) (const char *option
,
11403 obstack_init (&obstack
);
11404 init_opts_obstack ();
11407 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
11408 do_option_spec (option_default_specs
[i
].name
,
11409 option_default_specs
[i
].spec
);
11411 for (i
= 0; (int) i
< n_switches
; i
++)
11413 gcc_assert (switches
[i
].part1
);
11414 (*cb
) (switches
[i
].part1
, user_data
);
11417 obstack_free (&opts_obstack
, NULL
);
11418 obstack_free (&obstack
, NULL
);