1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2020 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 /* This program is the user interface to the C compiler and possibly to
21 other compilers. It is used because compilation is a complicated procedure
22 which involves running several programs and passing temporary files between
23 them, forwarding the users switches to those programs selectively,
24 and deleting the temporary files at the end.
26 CC recognizes how to compile each input file by suffixes in the file names.
27 Once it knows which kind of compilation to perform, the procedure for
28 compilation is specified by a string called a "spec". */
32 #include "coretypes.h"
33 #include "multilib.h" /* before tm.h */
39 #include "opt-suggestions.h"
41 #include "diagnostic.h"
44 #include "filenames.h"
45 #include "spellcheck.h"
49 /* Manage the manipulation of env vars.
51 We poison "getenv" and "putenv", so that all enviroment-handling is
52 done through this class. Note that poisoning happens in the
53 preprocessor at the identifier level, and doesn't distinguish between
57 Hence we need to use "get" for the accessor method, not "getenv". */
62 void init (bool can_restore
, bool debug
);
63 const char *get (const char *name
);
64 void xput (const char *string
);
79 /* The singleton instance of class env_manager. */
81 static env_manager env
;
83 /* Initializer for class env_manager.
85 We can't do this as a constructor since we have a statically
86 allocated instance ("env" above). */
89 env_manager::init (bool can_restore
, bool debug
)
91 m_can_restore
= can_restore
;
95 /* Get the value of NAME within the environment. Essentially
96 a wrapper for ::getenv, but adding logging, and the possibility
97 of caching results. */
100 env_manager::get (const char *name
)
102 const char *result
= ::getenv (name
);
104 fprintf (stderr
, "env_manager::getenv (%s) -> %s\n", name
, result
);
108 /* Put the given KEY=VALUE entry STRING into the environment.
109 If the env_manager was initialized with CAN_RESTORE set, then
110 also record the old value of KEY within the environment, so that it
111 can be later restored. */
114 env_manager::xput (const char *string
)
117 fprintf (stderr
, "env_manager::xput (%s)\n", string
);
119 fnotice (stderr
, "%s\n", string
);
123 char *equals
= strchr (const_cast <char *> (string
), '=');
127 kv
.m_key
= xstrndup (string
, equals
- string
);
128 const char *cur_value
= ::getenv (kv
.m_key
);
130 fprintf (stderr
, "saving old value: %s\n",cur_value
);
131 kv
.m_value
= cur_value
? xstrdup (cur_value
) : NULL
;
132 m_keys
.safe_push (kv
);
135 ::putenv (CONST_CAST (char *, string
));
138 /* Undo any xputenv changes made since last restore.
139 Can only be called if the env_manager was initialized with
140 CAN_RESTORE enabled. */
143 env_manager::restore ()
148 gcc_assert (m_can_restore
);
150 FOR_EACH_VEC_ELT_REVERSE (m_keys
, i
, item
)
153 printf ("restoring saved key: %s value: %s\n", item
->m_key
, item
->m_value
);
155 ::setenv (item
->m_key
, item
->m_value
, 1);
157 ::unsetenv (item
->m_key
);
159 free (item
->m_value
);
165 /* Forbid other uses of getenv and putenv. */
166 #if (GCC_VERSION >= 3000)
167 #pragma GCC poison getenv putenv
172 /* By default there is no special suffix for target executables. */
173 #ifdef TARGET_EXECUTABLE_SUFFIX
174 #define HAVE_TARGET_EXECUTABLE_SUFFIX
176 #define TARGET_EXECUTABLE_SUFFIX ""
179 /* By default there is no special suffix for host executables. */
180 #ifdef HOST_EXECUTABLE_SUFFIX
181 #define HAVE_HOST_EXECUTABLE_SUFFIX
183 #define HOST_EXECUTABLE_SUFFIX ""
186 /* By default, the suffix for target object files is ".o". */
187 #ifdef TARGET_OBJECT_SUFFIX
188 #define HAVE_TARGET_OBJECT_SUFFIX
190 #define TARGET_OBJECT_SUFFIX ".o"
193 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
195 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
196 #ifndef LIBRARY_PATH_ENV
197 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
200 /* If a stage of compilation returns an exit status >= 1,
201 compilation of that file ceases. */
203 #define MIN_FATAL_STATUS 1
205 /* Flag set by cppspec.c to 1. */
208 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
209 static bool at_file_supplied
;
211 /* Definition of string containing the arguments given to configure. */
212 #include "configargs.h"
214 /* Flag saying to print the command line options understood by gcc and its
217 static int print_help_list
;
219 /* Flag saying to print the version of gcc and its sub-processes. */
221 static int print_version
;
223 /* Flag that stores string prefix for which we provide bash completion. */
225 static const char *completion
= NULL
;
227 /* Flag indicating whether we should ONLY print the command and
228 arguments (like verbose_flag) without executing the command.
229 Displayed arguments are quoted so that the generated command
230 line is suitable for execution. This is intended for use in
231 shell scripts to capture the driver-generated command line. */
232 static int verbose_only_flag
;
234 /* Flag indicating how to print command line options of sub-processes. */
236 static int print_subprocess_help
;
238 /* Linker suffix passed to -fuse-ld=... */
239 static const char *use_ld
;
241 /* Whether we should report subprocess execution times to a file. */
243 FILE *report_times_to_file
= NULL
;
245 /* Nonzero means place this string before uses of /, so that include
246 and library files can be found in an alternate location. */
248 #ifdef TARGET_SYSTEM_ROOT
249 #define DEFAULT_TARGET_SYSTEM_ROOT (TARGET_SYSTEM_ROOT)
251 #define DEFAULT_TARGET_SYSTEM_ROOT (0)
253 static const char *target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
255 /* Nonzero means pass the updated target_system_root to the compiler. */
257 static int target_system_root_changed
;
259 /* Nonzero means append this string to target_system_root. */
261 static const char *target_sysroot_suffix
= 0;
263 /* Nonzero means append this string to target_system_root for headers. */
265 static const char *target_sysroot_hdrs_suffix
= 0;
267 /* Nonzero means write "temp" files in source directory
268 and use the source file's name in them, and don't delete them. */
270 static enum save_temps
{
271 SAVE_TEMPS_NONE
, /* no -save-temps */
272 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
273 SAVE_TEMPS_DUMP
, /* -save-temps in dumpdir */
274 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
277 /* Set this iff the dumppfx implied by a -save-temps=* option is to
278 override a -dumpdir option, if any. */
279 static bool save_temps_overrides_dumpdir
= false;
281 /* -dumpdir, -dumpbase and -dumpbase-ext flags passed in, possibly
282 rearranged as they are to be passed down, e.g., dumpbase and
283 dumpbase_ext may be cleared if integrated with dumpdir or
285 static char *dumpdir
, *dumpbase
, *dumpbase_ext
;
287 /* Usually the length of the string in dumpdir. However, during
288 linking, it may be shortened to omit a driver-added trailing dash,
289 by then replaced with a trailing period, that is still to be passed
290 to sub-processes in -dumpdir, but not to be generally used in spec
291 filename expansions. See maybe_run_linker. */
292 static size_t dumpdir_length
= 0;
294 /* Set if the last character in dumpdir is (or was) a dash that the
295 driver added to dumpdir after dumpbase or linker output name. */
296 static bool dumpdir_trailing_dash_added
= false;
298 /* Basename of dump and aux outputs, computed from dumpbase (given or
299 derived from output name), to override input_basename in non-%w %b
301 static char *outbase
;
302 static size_t outbase_length
= 0;
304 /* The compiler version. */
306 static const char *compiler_version
;
308 /* The target version. */
310 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
312 /* The target machine. */
314 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
315 static const char *spec_host_machine
= DEFAULT_REAL_TARGET_MACHINE
;
317 /* List of offload targets. Separated by colon. Empty string for
318 -foffload=disable. */
320 static char *offload_targets
= NULL
;
322 /* Nonzero if cross-compiling.
323 When -b is used, the value comes from the `specs' file. */
325 #ifdef CROSS_DIRECTORY_STRUCTURE
326 static const char *cross_compile
= "1";
328 static const char *cross_compile
= "0";
331 /* Greatest exit code of sub-processes that has been encountered up to
333 static int greatest_status
= 1;
335 /* This is the obstack which we use to allocate many strings. */
337 static struct obstack obstack
;
339 /* This is the obstack to build an environment variable to pass to
340 collect2 that describes all of the relevant switches of what to
341 pass the compiler in building the list of pointers to constructors
344 static struct obstack collect_obstack
;
346 /* Forward declaration for prototypes. */
350 static void init_spec (void);
351 static void store_arg (const char *, int, int);
352 static void insert_wrapper (const char *);
353 static char *load_specs (const char *);
354 static void read_specs (const char *, bool, bool);
355 static void set_spec (const char *, const char *, bool);
356 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
357 static char *build_search_list (const struct path_prefix
*, const char *,
359 static void xputenv (const char *);
360 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
362 static int access_check (const char *, int);
363 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
364 static void add_prefix (struct path_prefix
*, const char *, const char *,
366 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
367 const char *, int, int, int);
368 static char *skip_whitespace (char *);
369 static void delete_if_ordinary (const char *);
370 static void delete_temp_files (void);
371 static void delete_failure_queue (void);
372 static void clear_failure_queue (void);
373 static int check_live_switch (int, int);
374 static const char *handle_braces (const char *);
375 static inline bool input_suffix_matches (const char *, const char *);
376 static inline bool switch_matches (const char *, const char *, int);
377 static inline void mark_matching_switches (const char *, const char *, int);
378 static inline void process_marked_switches (void);
379 static const char *process_brace_body (const char *, const char *, const char *, int, int);
380 static const struct spec_function
*lookup_spec_function (const char *);
381 static const char *eval_spec_function (const char *, const char *, const char *);
382 static const char *handle_spec_function (const char *, bool *, const char *);
383 static char *save_string (const char *, int);
384 static void set_collect_gcc_options (void);
385 static int do_spec_1 (const char *, int, const char *);
386 static int do_spec_2 (const char *, const char *);
387 static void do_option_spec (const char *, const char *);
388 static void do_self_spec (const char *);
389 static const char *find_file (const char *);
390 static int is_directory (const char *, bool);
391 static const char *validate_switches (const char *, bool, bool);
392 static void validate_all_switches (void);
393 static inline void validate_switches_from_spec (const char *, bool);
394 static void give_switch (int, int);
395 static int default_arg (const char *, int);
396 static void set_multilib_dir (void);
397 static void print_multilib_info (void);
398 static void display_help (void);
399 static void add_preprocessor_option (const char *, int);
400 static void add_assembler_option (const char *, int);
401 static void add_linker_option (const char *, int);
402 static void process_command (unsigned int, struct cl_decoded_option
*);
403 static int execute (void);
404 static void alloc_args (void);
405 static void clear_args (void);
406 static void fatal_signal (int);
407 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
408 static void init_gcc_specs (struct obstack
*, const char *, const char *,
411 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
412 static const char *convert_filename (const char *, int, int);
415 static void try_generate_repro (const char **argv
);
416 static const char *getenv_spec_function (int, const char **);
417 static const char *if_exists_spec_function (int, const char **);
418 static const char *if_exists_else_spec_function (int, const char **);
419 static const char *if_exists_then_else_spec_function (int, const char **);
420 static const char *sanitize_spec_function (int, const char **);
421 static const char *replace_outfile_spec_function (int, const char **);
422 static const char *remove_outfile_spec_function (int, const char **);
423 static const char *version_compare_spec_function (int, const char **);
424 static const char *include_spec_function (int, const char **);
425 static const char *find_file_spec_function (int, const char **);
426 static const char *find_plugindir_spec_function (int, const char **);
427 static const char *print_asm_header_spec_function (int, const char **);
428 static const char *compare_debug_dump_opt_spec_function (int, const char **);
429 static const char *compare_debug_self_opt_spec_function (int, const char **);
430 static const char *pass_through_libs_spec_func (int, const char **);
431 static const char *dumps_spec_func (int, const char **);
432 static const char *greater_than_spec_func (int, const char **);
433 static const char *debug_level_greater_than_spec_func (int, const char **);
434 static const char *dwarf_version_greater_than_spec_func (int, const char **);
435 static const char *find_fortran_preinclude_file (int, const char **);
436 static char *convert_white_space (char *);
437 static char *quote_spec (char *);
438 static char *quote_spec_arg (char *);
439 static bool not_actual_file_p (const char *);
442 /* The Specs Language
444 Specs are strings containing lines, each of which (if not blank)
445 is made up of a program name, and arguments separated by spaces.
446 The program name must be exact and start from root, since no path
447 is searched and it is unreliable to depend on the current working directory.
448 Redirection of input or output is not supported; the subprograms must
449 accept filenames saying what files to read and write.
451 In addition, the specs can contain %-sequences to substitute variable text
452 or for conditional text. Here is a table of all defined %-sequences.
453 Note that spaces are not generated automatically around the results of
454 expanding these sequences; therefore, you can concatenate them together
455 or with constant text in a single argument.
457 %% substitute one % into the program name or argument.
458 %" substitute an empty argument.
459 %i substitute the name of the input file being processed.
460 %b substitute the basename for outputs related with the input file
461 being processed. This is often a substring of the input file name,
462 up to (and not including) the last period but, unless %w is active,
463 it is affected by the directory selected by -save-temps=*, by
464 -dumpdir, and, in case of multiple compilations, even by -dumpbase
465 and -dumpbase-ext and, in case of linking, by the linker output
466 name. When %w is active, it derives the main output name only from
467 the input file base name; when it is not, it names aux/dump output
469 %B same as %b, but include the input file suffix (text after the last
472 substitute a file name that has suffix SUFFIX and is chosen
473 once per compilation, and mark the argument a la %d. To reduce
474 exposure to denial-of-service attacks, the file name is now
475 chosen in a way that is hard to predict even when previously
476 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
477 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
478 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
479 had been pre-processed. Previously, %g was simply substituted
480 with a file name chosen once per compilation, without regard
481 to any appended suffix (which was therefore treated just like
482 ordinary text), making such attacks more likely to succeed.
484 like %g, but if -pipe is in effect, expands simply to "-".
486 like %g, but if -pipe is in effect, expands to nothing. (We have both
487 %| and %m to accommodate differences between system assemblers; see
488 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
490 like %g, but generates a new temporary file name even if %uSUFFIX
493 substitutes the last file name generated with %uSUFFIX, generating a
494 new one if there is no such last file name. In the absence of any
495 %uSUFFIX, this is just like %gSUFFIX, except they don't share
496 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
497 would involve the generation of two distinct file names, one
498 for each `%g.s' and another for each `%U.s'. Previously, %U was
499 simply substituted with a file name chosen for the previous %u,
500 without regard to any appended suffix.
502 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
503 writable, and if save-temps is off; otherwise, substitute the name
504 of a temporary file, just like %u. This temporary file is not
505 meant for communication between processes, but rather as a junk
508 substitutes .SUFFIX for the suffixes of a matched switch's args when
509 it is subsequently output with %*. SUFFIX is terminated by the next
511 %d marks the argument containing or following the %d as a
512 temporary file name, so that file will be deleted if GCC exits
513 successfully. Unlike %g, this contributes no text to the argument.
514 %w marks the argument containing or following the %w as the
515 "output file" of this compilation. This puts the argument
516 into the sequence of arguments that %o will substitute later.
517 %V indicates that this compilation produces no "output file".
519 like %{...} but marks the last argument supplied within as a file
520 to be deleted on failure.
522 like %{...} but puts the result into a FILE and substitutes @FILE
523 if an @file argument has been supplied.
524 %o substitutes the names of all the output files, with spaces
525 automatically placed around them. You should write spaces
526 around the %o as well or the results are undefined.
527 %o is for use in the specs for running the linker.
528 Input files whose names have no recognized suffix are not compiled
529 at all, but they are included among the output files, so they will
531 %O substitutes the suffix for object files. Note that this is
532 handled specially when it immediately follows %g, %u, or %U
533 (with or without a suffix argument) because of the need for
534 those to form complete file names. The handling is such that
535 %O is treated exactly as if it had already been substituted,
536 except that %g, %u, and %U do not currently support additional
537 SUFFIX characters following %O as they would following, for
539 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
540 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
541 and -B options) and -imultilib as necessary.
542 %s current argument is the name of a library or startup file of some sort.
543 Search for that file in a standard list of directories
544 and substitute the full name found.
545 %T current argument is the name of a linker script.
546 Search for that file in the current list of directories to scan for
547 libraries. If the file is located, insert a --script option into the
548 command line followed by the full path name found. If the file is
549 not found then generate an error message.
550 Note: the current working directory is not searched.
551 %eSTR Print STR as an error message. STR is terminated by a newline.
552 Use this when inconsistent options are detected.
553 %nSTR Print STR as a notice. STR is terminated by a newline.
554 %x{OPTION} Accumulate an option for %X.
555 %X Output the accumulated linker options specified by compilations.
556 %Y Output the accumulated assembler options specified by compilations.
557 %Z Output the accumulated preprocessor options specified by compilations.
558 %a process ASM_SPEC as a spec.
559 This allows config.h to specify part of the spec for running as.
560 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
561 used here. This can be used to run a post-processor after the
562 assembler has done its job.
563 %D Dump out a -L option for each directory in startfile_prefixes.
564 If multilib_dir is set, extra entries are generated with it affixed.
565 %l process LINK_SPEC as a spec.
566 %L process LIB_SPEC as a spec.
567 %M Output multilib_os_dir.
568 %G process LIBGCC_SPEC as a spec.
569 %R Output the concatenation of target_system_root and
570 target_sysroot_suffix.
571 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
572 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
573 %C process CPP_SPEC as a spec.
574 %1 process CC1_SPEC as a spec.
575 %2 process CC1PLUS_SPEC as a spec.
576 %* substitute the variable part of a matched option. (See below.)
577 Note that each comma in the substituted string is replaced by
578 a single space. A space is appended after the last substition
579 unless there is more text in current sequence.
580 %<S remove all occurrences of -S from the command line.
581 Note - this command is position dependent. % commands in the
582 spec string before this one will see -S, % commands in the
583 spec string after this one will not.
584 %>S Similar to "%<S", but keep it in the GCC command line.
585 %<S* remove all occurrences of all switches beginning with -S from the
588 Call the named function FUNCTION, passing it ARGS. ARGS is
589 first processed as a nested spec string, then split into an
590 argument vector in the usual fashion. The function returns
591 a string which is processed as if it had appeared literally
592 as part of the current spec.
593 %{S} substitutes the -S switch, if that switch was given to GCC.
594 If that switch was not specified, this substitutes nothing.
595 Here S is a metasyntactic variable.
596 %{S*} substitutes all the switches specified to GCC whose names start
597 with -S. This is used for -o, -I, etc; switches that take
598 arguments. GCC considers `-o foo' as being one switch whose
599 name starts with `o'. %{o*} would substitute this text,
600 including the space; thus, two arguments would be generated.
601 %{S*&T*} likewise, but preserve order of S and T options (the order
602 of S and T in the spec is not significant). Can be any number
603 of ampersand-separated variables; for each the wild card is
604 optional. Useful for CPP as %{D*&U*&A*}.
606 %{S:X} substitutes X, if the -S switch was given to GCC.
607 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
608 %{S*:X} substitutes X if one or more switches whose names start
609 with -S was given to GCC. Normally X is substituted only
610 once, no matter how many such switches appeared. However,
611 if %* appears somewhere in X, then X will be substituted
612 once for each matching switch, with the %* replaced by the
613 part of that switch that matched the '*'. A space will be
614 appended after the last substition unless there is more
615 text in current sequence.
616 %{.S:X} substitutes X, if processing a file with suffix S.
617 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
618 %{,S:X} substitutes X, if processing a file which will use spec S.
619 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
621 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
622 combined with '!', '.', ',', and '*' as above binding stronger
624 If %* appears in X, all of the alternatives must be starred, and
625 only the first matching alternative is substituted.
626 %{%:function(args):X}
627 Call function named FUNCTION with args ARGS. If the function
628 returns non-NULL, then X is substituted, if it returns
629 NULL, it isn't substituted.
630 %{S:X; if S was given to GCC, substitutes X;
631 T:Y; else if T was given to GCC, substitutes Y;
632 :D} else substitutes D. There can be as many clauses as you need.
633 This may be combined with '.', '!', ',', '|', and '*' as above.
635 %(Spec) processes a specification defined in a specs file as *Spec:
637 The switch matching text S in a %{S}, %{S:X}, or similar construct can use
638 a backslash to ignore the special meaning of the character following it,
639 thus allowing literal matching of a character that is otherwise specially
640 treated. For example, %{std=iso9899\:1999:X} substitutes X if the
641 -std=iso9899:1999 option is given.
643 The conditional text X in a %{S:X} or similar construct may contain
644 other nested % constructs or spaces, or even newlines. They are
645 processed as usual, as described above. Trailing white space in X is
646 ignored. White space may also appear anywhere on the left side of the
647 colon in these constructs, except between . or * and the corresponding
650 The -O, -f, -g, -m, and -W switches are handled specifically in these
651 constructs. If another value of -O or the negated form of a -f, -m, or
652 -W switch is found later in the command line, the earlier switch
653 value is ignored, except with {S*} where S is just one letter; this
654 passes all matching options.
656 The character | at the beginning of the predicate text is used to indicate
657 that a command should be piped to the following command, but only if -pipe
660 Note that it is built into GCC which switches take arguments and which
661 do not. You might think it would be useful to generalize this to
662 allow each compiler's spec to say which switches take arguments. But
663 this cannot be done in a consistent fashion. GCC cannot even decide
664 which input files have been specified without knowing which switches
665 take arguments, and it must know which input files to compile in order
666 to tell which compilers to run.
668 GCC also knows implicitly that arguments starting in `-l' are to be
669 treated as compiler output files, and passed to the linker in their
670 proper position among the other output files. */
672 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
674 /* config.h can define ASM_SPEC to provide extra args to the assembler
675 or extra switch-translations. */
680 /* config.h can define ASM_FINAL_SPEC to run a post processor after
681 the assembler has run. */
682 #ifndef ASM_FINAL_SPEC
683 #define ASM_FINAL_SPEC \
685 objcopy --extract-dwo \
686 %{c:%{o*:%*}%{!o*:%w%b%O}}%{!c:%U%O} \
688 objcopy --strip-dwo \
689 %{c:%{o*:%*}%{!o*:%w%b%O}}%{!c:%U%O} \
693 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
694 or extra switch-translations. */
699 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
700 or extra switch-translations. */
705 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
706 or extra switch-translations. */
708 #define CC1PLUS_SPEC ""
711 /* config.h can define LINK_SPEC to provide extra args to the linker
712 or extra switch-translations. */
717 /* config.h can define LIB_SPEC to override the default libraries. */
719 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
722 /* When using -fsplit-stack we need to wrap pthread_create, in order
723 to initialize the stack guard. We always use wrapping, rather than
724 shared library ordering, and we keep the wrapper function in
725 libgcc. This is not yet a real spec, though it could become one;
726 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
727 only works with GNU ld and gold. */
728 #ifdef HAVE_GOLD_NON_DEFAULT_SPLIT_STACK
729 #define STACK_SPLIT_SPEC " %{fsplit-stack: -fuse-ld=gold --wrap=pthread_create}"
731 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
735 #define STATIC_LIBASAN_LIBS \
736 " %{static-libasan|static:%:include(libsanitizer.spec)%(link_libasan)}"
737 #ifdef LIBASAN_EARLY_SPEC
738 #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
739 #elif defined(HAVE_LD_STATIC_DYNAMIC)
740 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
741 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
744 #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
748 #ifndef LIBASAN_EARLY_SPEC
749 #define LIBASAN_EARLY_SPEC ""
752 #ifndef LIBHWASAN_SPEC
753 #define STATIC_LIBHWASAN_LIBS \
754 " %{static-libhwasan|static:%:include(libsanitizer.spec)%(link_libhwasan)}"
755 #ifdef LIBHWASAN_EARLY_SPEC
756 #define LIBHWASAN_SPEC STATIC_LIBHWASAN_LIBS
757 #elif defined(HAVE_LD_STATIC_DYNAMIC)
758 #define LIBHWASAN_SPEC "%{static-libhwasan:" LD_STATIC_OPTION \
759 "} -lhwasan %{static-libhwasan:" LD_DYNAMIC_OPTION "}" \
760 STATIC_LIBHWASAN_LIBS
762 #define LIBHWASAN_SPEC "-lhwasan" STATIC_LIBHWASAN_LIBS
766 #ifndef LIBHWASAN_EARLY_SPEC
767 #define LIBHWASAN_EARLY_SPEC ""
771 #define STATIC_LIBTSAN_LIBS \
772 " %{static-libtsan|static:%:include(libsanitizer.spec)%(link_libtsan)}"
773 #ifdef LIBTSAN_EARLY_SPEC
774 #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
775 #elif defined(HAVE_LD_STATIC_DYNAMIC)
776 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
777 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
780 #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
784 #ifndef LIBTSAN_EARLY_SPEC
785 #define LIBTSAN_EARLY_SPEC ""
789 #define STATIC_LIBLSAN_LIBS \
790 " %{static-liblsan|static:%:include(libsanitizer.spec)%(link_liblsan)}"
791 #ifdef LIBLSAN_EARLY_SPEC
792 #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
793 #elif defined(HAVE_LD_STATIC_DYNAMIC)
794 #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
795 "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
798 #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
802 #ifndef LIBLSAN_EARLY_SPEC
803 #define LIBLSAN_EARLY_SPEC ""
806 #ifndef LIBUBSAN_SPEC
807 #define STATIC_LIBUBSAN_LIBS \
808 " %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}"
809 #ifdef HAVE_LD_STATIC_DYNAMIC
810 #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
811 "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
814 #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
818 /* Linker options for compressed debug sections. */
819 #if HAVE_LD_COMPRESS_DEBUG == 0
820 /* No linker support. */
821 #define LINK_COMPRESS_DEBUG_SPEC \
822 " %{gz*:%e-gz is not supported in this configuration} "
823 #elif HAVE_LD_COMPRESS_DEBUG == 1
824 /* GNU style on input, GNU ld options. Reject, not useful. */
825 #define LINK_COMPRESS_DEBUG_SPEC \
826 " %{gz*:%e-gz is not supported in this configuration} "
827 #elif HAVE_LD_COMPRESS_DEBUG == 2
828 /* GNU style, GNU gold options. */
829 #define LINK_COMPRESS_DEBUG_SPEC \
830 " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
831 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
832 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
833 #elif HAVE_LD_COMPRESS_DEBUG == 3
834 /* ELF gABI style. */
835 #define LINK_COMPRESS_DEBUG_SPEC \
836 " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
837 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
838 " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
840 #error Unknown value for HAVE_LD_COMPRESS_DEBUG.
843 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
846 #if defined(REAL_LIBGCC_SPEC)
847 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
848 #elif defined(LINK_LIBGCC_SPECIAL_1)
849 /* Have gcc do the search for libgcc.a. */
850 #define LIBGCC_SPEC "libgcc.a%s"
852 #define LIBGCC_SPEC "-lgcc"
856 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
857 #ifndef STARTFILE_SPEC
858 #define STARTFILE_SPEC \
859 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
862 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
864 #define ENDFILE_SPEC ""
868 #define LINKER_NAME "collect2"
871 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
872 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
877 /* Assembler options for compressed debug sections. */
878 #if HAVE_LD_COMPRESS_DEBUG < 2
879 /* Reject if the linker cannot write compressed debug sections. */
880 #define ASM_COMPRESS_DEBUG_SPEC \
881 " %{gz*:%e-gz is not supported in this configuration} "
882 #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */
883 #if HAVE_AS_COMPRESS_DEBUG == 0
884 /* No assembler support. Ignore silently. */
885 #define ASM_COMPRESS_DEBUG_SPEC \
887 #elif HAVE_AS_COMPRESS_DEBUG == 1
888 /* GNU style, GNU as options. */
889 #define ASM_COMPRESS_DEBUG_SPEC \
890 " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \
891 " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \
892 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
893 #elif HAVE_AS_COMPRESS_DEBUG == 2
894 /* ELF gABI style. */
895 #define ASM_COMPRESS_DEBUG_SPEC \
896 " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
897 " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
898 " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
900 #error Unknown value for HAVE_AS_COMPRESS_DEBUG.
902 #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */
904 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
905 to the assembler, when compiling assembly sources only. */
906 #ifndef ASM_DEBUG_SPEC
907 # if defined(HAVE_AS_GDWARF_5_DEBUG_FLAG) && defined(HAVE_AS_WORKING_DWARF_N_FLAG)
908 /* If --gdwarf-N is supported and as can handle even compiler generated
909 .debug_line with it, supply --gdwarf-N in ASM_DEBUG_OPTION_SPEC rather
910 than in ASM_DEBUG_SPEC, so that it applies to both .s and .c etc.
912 # define ASM_DEBUG_DWARF_OPTION ""
913 # elif defined(HAVE_AS_GDWARF_5_DEBUG_FLAG)
914 # define ASM_DEBUG_DWARF_OPTION "%{%:dwarf-version-gt(4):--gdwarf-5;" \
915 "%:dwarf-version-gt(3):--gdwarf-4;" \
916 "%:dwarf-version-gt(2):--gdwarf-3;" \
919 # define ASM_DEBUG_DWARF_OPTION "--gdwarf2"
921 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
922 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
923 # define ASM_DEBUG_SPEC \
924 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
925 ? "%{%:debug-level-gt(0):" \
926 "%{gdwarf*:" ASM_DEBUG_DWARF_OPTION "};" \
927 ":%{g*:--gstabs}}" ASM_MAP \
928 : "%{%:debug-level-gt(0):" \
929 "%{gstabs*:--gstabs;" \
930 ":%{g*:" ASM_DEBUG_DWARF_OPTION "}}}" ASM_MAP)
932 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
933 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gstabs}}" ASM_MAP
935 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
936 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):" \
937 ASM_DEBUG_DWARF_OPTION "}}" ASM_MAP
941 #ifndef ASM_DEBUG_SPEC
942 # define ASM_DEBUG_SPEC ""
945 /* Define ASM_DEBUG_OPTION_SPEC to be a spec suitable for translating '-g'
946 to the assembler when compiling all sources. */
947 #ifndef ASM_DEBUG_OPTION_SPEC
948 # if defined(HAVE_AS_GDWARF_5_DEBUG_FLAG) && defined(HAVE_AS_WORKING_DWARF_N_FLAG)
949 # define ASM_DEBUG_OPTION_DWARF_OPT \
950 "%{%:dwarf-version-gt(4):--gdwarf-5 ;" \
951 "%:dwarf-version-gt(3):--gdwarf-4 ;" \
952 "%:dwarf-version-gt(2):--gdwarf-3 ;" \
954 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO)
955 # define ASM_DEBUG_OPTION_SPEC \
956 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
957 ? "%{%:debug-level-gt(0):" \
958 "%{gdwarf*:" ASM_DEBUG_OPTION_DWARF_OPT "}}" \
959 : "%{%:debug-level-gt(0):" \
960 "%{!gstabs*:%{g*:" ASM_DEBUG_OPTION_DWARF_OPT "}}}")
961 # elif defined(DWARF2_DEBUGGING_INFO)
962 # define ASM_DEBUG_OPTION_SPEC "%{g*:%{%:debug-level-gt(0):" \
963 ASM_DEBUG_OPTION_DWARF_OPT "}}"
967 #ifndef ASM_DEBUG_OPTION_SPEC
968 # define ASM_DEBUG_OPTION_SPEC ""
971 /* Here is the spec for running the linker, after compiling all files. */
973 /* This is overridable by the target in case they need to specify the
974 -lgcc and -lc order specially, yet not require them to override all
975 of LINK_COMMAND_SPEC. */
976 #ifndef LINK_GCC_C_SEQUENCE_SPEC
977 #define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}"
980 #ifndef LINK_SSP_SPEC
981 #ifdef TARGET_LIBC_PROVIDES_SSP
982 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
983 "|fstack-protector-strong|fstack-protector-explicit:}"
985 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
986 "|fstack-protector-strong|fstack-protector-explicit" \
987 ":-lssp_nonshared -lssp}"
991 #ifdef ENABLE_DEFAULT_PIE
992 #define PIE_SPEC "!no-pie"
993 #define NO_FPIE1_SPEC "fno-pie"
994 #define FPIE1_SPEC NO_FPIE1_SPEC ":;"
995 #define NO_FPIE2_SPEC "fno-PIE"
996 #define FPIE2_SPEC NO_FPIE2_SPEC ":;"
997 #define NO_FPIE_SPEC NO_FPIE1_SPEC "|" NO_FPIE2_SPEC
998 #define FPIE_SPEC NO_FPIE_SPEC ":;"
999 #define NO_FPIC1_SPEC "fno-pic"
1000 #define FPIC1_SPEC NO_FPIC1_SPEC ":;"
1001 #define NO_FPIC2_SPEC "fno-PIC"
1002 #define FPIC2_SPEC NO_FPIC2_SPEC ":;"
1003 #define NO_FPIC_SPEC NO_FPIC1_SPEC "|" NO_FPIC2_SPEC
1004 #define FPIC_SPEC NO_FPIC_SPEC ":;"
1005 #define NO_FPIE1_AND_FPIC1_SPEC NO_FPIE1_SPEC "|" NO_FPIC1_SPEC
1006 #define FPIE1_OR_FPIC1_SPEC NO_FPIE1_AND_FPIC1_SPEC ":;"
1007 #define NO_FPIE2_AND_FPIC2_SPEC NO_FPIE2_SPEC "|" NO_FPIC2_SPEC
1008 #define FPIE2_OR_FPIC2_SPEC NO_FPIE2_AND_FPIC2_SPEC ":;"
1009 #define NO_FPIE_AND_FPIC_SPEC NO_FPIE_SPEC "|" NO_FPIC_SPEC
1010 #define FPIE_OR_FPIC_SPEC NO_FPIE_AND_FPIC_SPEC ":;"
1012 #define PIE_SPEC "pie"
1013 #define FPIE1_SPEC "fpie"
1014 #define NO_FPIE1_SPEC FPIE1_SPEC ":;"
1015 #define FPIE2_SPEC "fPIE"
1016 #define NO_FPIE2_SPEC FPIE2_SPEC ":;"
1017 #define FPIE_SPEC FPIE1_SPEC "|" FPIE2_SPEC
1018 #define NO_FPIE_SPEC FPIE_SPEC ":;"
1019 #define FPIC1_SPEC "fpic"
1020 #define NO_FPIC1_SPEC FPIC1_SPEC ":;"
1021 #define FPIC2_SPEC "fPIC"
1022 #define NO_FPIC2_SPEC FPIC2_SPEC ":;"
1023 #define FPIC_SPEC FPIC1_SPEC "|" FPIC2_SPEC
1024 #define NO_FPIC_SPEC FPIC_SPEC ":;"
1025 #define FPIE1_OR_FPIC1_SPEC FPIE1_SPEC "|" FPIC1_SPEC
1026 #define NO_FPIE1_AND_FPIC1_SPEC FPIE1_OR_FPIC1_SPEC ":;"
1027 #define FPIE2_OR_FPIC2_SPEC FPIE2_SPEC "|" FPIC2_SPEC
1028 #define NO_FPIE2_AND_FPIC2_SPEC FPIE1_OR_FPIC2_SPEC ":;"
1029 #define FPIE_OR_FPIC_SPEC FPIE_SPEC "|" FPIC_SPEC
1030 #define NO_FPIE_AND_FPIC_SPEC FPIE_OR_FPIC_SPEC ":;"
1033 #ifndef LINK_PIE_SPEC
1036 #define LD_PIE_SPEC "-pie"
1039 #define LD_PIE_SPEC ""
1041 #define LINK_PIE_SPEC "%{static|shared|r:;" PIE_SPEC ":" LD_PIE_SPEC "} "
1044 #ifndef LINK_BUILDID_SPEC
1045 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
1046 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
1050 #ifndef LTO_PLUGIN_SPEC
1051 #define LTO_PLUGIN_SPEC ""
1054 /* Conditional to test whether the LTO plugin is used or not.
1055 FIXME: For slim LTO we will need to enable plugin unconditionally. This
1056 still cause problems with PLUGIN_LD != LD and when plugin is built but
1057 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
1058 plugin only when LTO is enabled. We still honor explicit
1059 -fuse-linker-plugin if the linker used understands -plugin. */
1061 /* The linker has some plugin support. */
1062 #if HAVE_LTO_PLUGIN > 0
1063 /* The linker used has full plugin support, use LTO plugin by default. */
1064 #if HAVE_LTO_PLUGIN == 2
1065 #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
1066 #define PLUGIN_COND_CLOSE "}"
1068 /* The linker used has limited plugin support, use LTO plugin with explicit
1069 -fuse-linker-plugin. */
1070 #define PLUGIN_COND "fuse-linker-plugin"
1071 #define PLUGIN_COND_CLOSE ""
1073 #define LINK_PLUGIN_SPEC \
1074 "%{" PLUGIN_COND": \
1075 -plugin %(linker_plugin_file) \
1076 -plugin-opt=%(lto_wrapper) \
1077 -plugin-opt=-fresolution=%u.res \
1078 " LTO_PLUGIN_SPEC "\
1079 %{flinker-output=*:-plugin-opt=-linker-output-known} \
1080 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
1081 }" PLUGIN_COND_CLOSE
1083 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
1084 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
1085 %e-fuse-linker-plugin is not supported in this configuration}"
1088 /* Linker command line options for -fsanitize= early on the command line. */
1089 #ifndef SANITIZER_EARLY_SPEC
1090 #define SANITIZER_EARLY_SPEC "\
1091 %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
1092 %{%:sanitize(hwaddress):" LIBHWASAN_EARLY_SPEC "} \
1093 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
1094 %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}}"
1097 /* Linker command line options for -fsanitize= late on the command line. */
1098 #ifndef SANITIZER_SPEC
1099 #define SANITIZER_SPEC "\
1100 %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
1101 %{static:%ecannot specify -static with -fsanitize=address}}\
1102 %{%:sanitize(hwaddress):" LIBHWASAN_SPEC "\
1103 %{static:%ecannot specify -static with -fsanitize=hwaddress}}\
1104 %{%:sanitize(thread):" LIBTSAN_SPEC "\
1105 %{static:%ecannot specify -static with -fsanitize=thread}}\
1106 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
1107 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}}"
1110 #ifndef POST_LINK_SPEC
1111 #define POST_LINK_SPEC ""
1114 /* This is the spec to use, once the code for creating the vtable
1115 verification runtime library, libvtv.so, has been created. Currently
1116 the vtable verification runtime functions are in libstdc++, so we use
1117 the spec just below this one. */
1118 #ifndef VTABLE_VERIFICATION_SPEC
1119 #if ENABLE_VTABLE_VERIFY
1120 #define VTABLE_VERIFICATION_SPEC "\
1121 %{!nostdlib:%{!r:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
1122 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}}"
1124 #define VTABLE_VERIFICATION_SPEC "\
1125 %{fvtable-verify=none:} \
1126 %{fvtable-verify=std: \
1127 %e-fvtable-verify=std is not supported in this configuration} \
1128 %{fvtable-verify=preinit: \
1129 %e-fvtable-verify=preinit is not supported in this configuration}"
1133 /* -u* was put back because both BSD and SysV seem to support it. */
1134 /* %{static|no-pie|static-pie:} simply prevents an error message:
1135 1. If the target machine doesn't handle -static.
1136 2. If PIE isn't enabled by default.
1137 3. If the target machine doesn't handle -static-pie.
1139 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
1140 scripts which exist in user specified directories, or in standard
1142 /* We pass any -flto flags on to the linker, which is expected
1143 to understand them. In practice, this means it had better be collect2. */
1144 /* %{e*} includes -export-dynamic; see comment in common.opt. */
1145 #ifndef LINK_COMMAND_SPEC
1146 #define LINK_COMMAND_SPEC "\
1147 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
1150 "%{flto|flto=*:%<fcompare-debug*} \
1151 %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
1152 "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
1153 "%X %{o*} %{e*} %{N} %{n} %{r}\
1154 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
1155 %{static|no-pie|static-pie:} %@{L*} %(mfwrap) %(link_libgcc) " \
1156 VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o "" \
1157 %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
1158 %:include(libgomp.spec)%(link_gomp)}\
1159 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
1160 %(mflib) " STACK_SPLIT_SPEC "\
1161 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
1162 %{!nostdlib:%{!r:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}}\
1163 %{!nostdlib:%{!r:%{!nostartfiles:%E}}} %{T*} \n%(post_link) }}}}}}"
1166 #ifndef LINK_LIBGCC_SPEC
1167 /* Generate -L options for startfile prefix list. */
1168 # define LINK_LIBGCC_SPEC "%D"
1171 #ifndef STARTFILE_PREFIX_SPEC
1172 # define STARTFILE_PREFIX_SPEC ""
1175 #ifndef SYSROOT_SPEC
1176 # define SYSROOT_SPEC "--sysroot=%R"
1179 #ifndef SYSROOT_SUFFIX_SPEC
1180 # define SYSROOT_SUFFIX_SPEC ""
1183 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
1184 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
1187 static const char *asm_debug
= ASM_DEBUG_SPEC
;
1188 static const char *asm_debug_option
= ASM_DEBUG_OPTION_SPEC
;
1189 static const char *cpp_spec
= CPP_SPEC
;
1190 static const char *cc1_spec
= CC1_SPEC
;
1191 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
1192 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
1193 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
1194 static const char *asm_spec
= ASM_SPEC
;
1195 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
1196 static const char *link_spec
= LINK_SPEC
;
1197 static const char *lib_spec
= LIB_SPEC
;
1198 static const char *link_gomp_spec
= "";
1199 static const char *libgcc_spec
= LIBGCC_SPEC
;
1200 static const char *endfile_spec
= ENDFILE_SPEC
;
1201 static const char *startfile_spec
= STARTFILE_SPEC
;
1202 static const char *linker_name_spec
= LINKER_NAME
;
1203 static const char *linker_plugin_file_spec
= "";
1204 static const char *lto_wrapper_spec
= "";
1205 static const char *lto_gcc_spec
= "";
1206 static const char *post_link_spec
= POST_LINK_SPEC
;
1207 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
1208 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
1209 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
1210 static const char *sysroot_spec
= SYSROOT_SPEC
;
1211 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
1212 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
1213 static const char *self_spec
= "";
1215 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
1216 There should be no need to override these in target dependent files,
1217 but we need to copy them to the specs file so that newer versions
1218 of the GCC driver can correctly drive older tool chains with the
1219 appropriate -B options. */
1221 /* When cpplib handles traditional preprocessing, get rid of this, and
1222 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
1223 that we default the front end language better. */
1224 static const char *trad_capable_cpp
=
1225 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
1227 /* We don't wrap .d files in %W{} since a missing .d file, and
1228 therefore no dependency entry, confuses make into thinking a .o
1229 file that happens to exist is up-to-date. */
1230 static const char *cpp_unique_options
=
1231 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %@{I*&F*} %{P} %I\
1232 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
1233 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
1234 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
1235 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
1236 %{remap} %{g3|ggdb3|gstabs3|gxcoff3|gvms3:-dD}\
1237 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1238 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
1241 /* This contains cpp options which are common with cc1_options and are passed
1242 only when preprocessing only to avoid duplication. We pass the cc1 spec
1243 options to the preprocessor so that it the cc1 spec may manipulate
1244 options used to set target flags. Those special target flags settings may
1245 in turn cause preprocessor symbols to be defined specially. */
1246 static const char *cpp_options
=
1247 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
1248 %{f*} %{g*:%{%:debug-level-gt(0):%{g*}\
1249 %{!fno-working-directory:-fworking-directory}}} %{O*}\
1250 %{undef} %{save-temps*:-fpch-preprocess}";
1252 /* Pass -d* flags, possibly modifying -dumpdir, -dumpbase et al.
1254 Make it easy for a language to override the argument for the
1255 %:dumps specs function call. */
1256 #define DUMPS_OPTIONS(EXTS) \
1257 "%<dumpdir %<dumpbase %<dumpbase-ext %{d*} %:dumps(" EXTS ")"
1259 /* This contains cpp options which are not passed when the preprocessor
1260 output will be used by another program. */
1261 static const char *cpp_debug_options
= DUMPS_OPTIONS ("");
1263 /* NB: This is shared amongst all front-ends, except for Ada. */
1264 static const char *cc1_options
=
1265 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
1266 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1267 %1 %{!Q:-quiet} %(cpp_debug_options) %{m*} %{aux-info*}\
1268 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
1269 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
1270 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
1271 %{-target-help:--target-help}\
1272 %{-version:--version}\
1273 %{-help=*:--help=%*}\
1274 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %w%b.s}}}\
1275 %{fsyntax-only:-o %j} %{-param*}\
1276 %{coverage:-fprofile-arcs -ftest-coverage}\
1277 %{fprofile-arcs|fprofile-generate*|coverage:\
1278 %{!fprofile-update=single:\
1279 %{pthread:-fprofile-update=prefer-atomic}}}";
1281 static const char *asm_options
=
1282 "%{-target-help:%:print-asm-header()} "
1284 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
1285 to the assembler equivalents. */
1286 "%{v} %{w:-W} %{I*} "
1288 "%(asm_debug_option)"
1289 ASM_COMPRESS_DEBUG_SPEC
1290 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
1292 static const char *invoke_as
=
1293 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1295 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1296 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
1300 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1301 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
1305 /* Some compilers have limits on line lengths, and the multilib_select
1306 and/or multilib_matches strings can be very long, so we build them at
1308 static struct obstack multilib_obstack
;
1309 static const char *multilib_select
;
1310 static const char *multilib_matches
;
1311 static const char *multilib_defaults
;
1312 static const char *multilib_exclusions
;
1313 static const char *multilib_reuse
;
1315 /* Check whether a particular argument is a default argument. */
1317 #ifndef MULTILIB_DEFAULTS
1318 #define MULTILIB_DEFAULTS { "" }
1321 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
1323 #ifndef DRIVER_SELF_SPECS
1324 #define DRIVER_SELF_SPECS ""
1327 /* Linking to libgomp implies pthreads. This is particularly important
1328 for targets that use different start files and suchlike. */
1329 #ifndef GOMP_SELF_SPECS
1330 #define GOMP_SELF_SPECS \
1331 "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \
1335 /* Likewise for -fgnu-tm. */
1336 #ifndef GTM_SELF_SPECS
1337 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1340 static const char *const driver_self_specs
[] = {
1341 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1342 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
1345 #ifndef OPTION_DEFAULT_SPECS
1346 #define OPTION_DEFAULT_SPECS { "", "" }
1355 static const struct default_spec
1356 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1360 struct user_specs
*next
;
1361 const char *filename
;
1364 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1367 /* Record the mapping from file suffixes for compilation specs. */
1371 const char *suffix
; /* Use this compiler for input files
1372 whose names end in this suffix. */
1374 const char *spec
; /* To use this compiler, run this spec. */
1376 const char *cpp_spec
; /* If non-NULL, substitute this spec
1377 for `%C', rather than the usual
1379 int combinable
; /* If nonzero, compiler can deal with
1380 multiple source files at once (IMA). */
1381 int needs_preprocessing
; /* If nonzero, source files need to
1382 be run through a preprocessor. */
1385 /* Pointer to a vector of `struct compiler' that gives the spec for
1386 compiling a file, based on its suffix.
1387 A file that does not end in any of these suffixes will be passed
1388 unchanged to the loader and nothing else will be done to it.
1390 An entry containing two 0s is used to terminate the vector.
1392 If multiple entries match a file, the last matching one is used. */
1394 static struct compiler
*compilers
;
1396 /* Number of entries in `compilers', not counting the null terminator. */
1398 static int n_compilers
;
1400 /* The default list of file name suffixes and their compilation specs. */
1402 static const struct compiler default_compilers
[] =
1404 /* Add lists of suffixes of known languages here. If those languages
1405 were not present when we built the driver, we will hit these copies
1406 and be given a more meaningful error than "file not used since
1407 linking is not done". */
1408 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1409 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1410 {".mii", "#Objective-C++", 0, 0, 0},
1411 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1412 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1413 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1414 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1415 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1416 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1417 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1418 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1419 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1420 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1421 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1422 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1423 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1424 {".r", "#Ratfor", 0, 0, 0},
1425 {".go", "#Go", 0, 1, 0},
1426 {".d", "#D", 0, 1, 0}, {".dd", "#D", 0, 1, 0}, {".di", "#D", 0, 1, 0},
1427 /* Next come the entries for C. */
1428 {".c", "@c", 0, 0, 1},
1430 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1431 external preprocessor if -save-temps is given. */
1432 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1435 %eGNU C no longer supports -traditional without -E}\
1436 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1437 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1438 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1440 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1441 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1442 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1444 "%{!E:%e-E or -x required when input is from standard input}\
1445 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1446 {".h", "@c-header", 0, 0, 0},
1448 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1449 external preprocessor if -save-temps is given. */
1450 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1452 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1453 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1454 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1456 %{!fsyntax-only:%{!S:-o %g.s} \
1457 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1458 %W{o*:--output-pch=%*}}%V}}\
1459 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1460 cc1 %(cpp_unique_options) %(cc1_options)\
1461 %{!fsyntax-only:%{!S:-o %g.s} \
1462 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1463 %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
1464 {".i", "@cpp-output", 0, 0, 0},
1466 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1467 {".s", "@assembler", 0, 0, 0},
1469 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1470 {".sx", "@assembler-with-cpp", 0, 0, 0},
1471 {".S", "@assembler-with-cpp", 0, 0, 0},
1472 {"@assembler-with-cpp",
1473 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1474 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1475 %{E|M|MM:%(cpp_debug_options)}\
1476 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1477 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1479 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1480 %{E|M|MM:%(cpp_debug_options)}\
1481 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1482 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1487 /* Mark end of table. */
1491 /* Number of elements in default_compilers, not counting the terminator. */
1493 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1495 typedef char *char_p
; /* For DEF_VEC_P. */
1497 /* A vector of options to give to the linker.
1498 These options are accumulated by %x,
1499 and substituted into the linker command with %X. */
1500 static vec
<char_p
> linker_options
;
1502 /* A vector of options to give to the assembler.
1503 These options are accumulated by -Wa,
1504 and substituted into the assembler command with %Y. */
1505 static vec
<char_p
> assembler_options
;
1507 /* A vector of options to give to the preprocessor.
1508 These options are accumulated by -Wp,
1509 and substituted into the preprocessor command with %Z. */
1510 static vec
<char_p
> preprocessor_options
;
1513 skip_whitespace (char *p
)
1517 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1518 be considered whitespace. */
1519 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1521 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1535 /* Structures to keep track of prefixes to try when looking for files. */
1539 const char *prefix
; /* String to prepend to the path. */
1540 struct prefix_list
*next
; /* Next in linked list. */
1541 int require_machine_suffix
; /* Don't use without machine_suffix. */
1542 /* 2 means try both machine_suffix and just_machine_suffix. */
1543 int priority
; /* Sort key - priority within list. */
1544 int os_multilib
; /* 1 if OS multilib scheme should be used,
1545 0 for GCC multilib scheme. */
1550 struct prefix_list
*plist
; /* List of prefixes to try */
1551 int max_len
; /* Max length of a prefix in PLIST */
1552 const char *name
; /* Name of this list (used in config stuff) */
1555 /* List of prefixes to try when looking for executables. */
1557 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1559 /* List of prefixes to try when looking for startup (crt0) files. */
1561 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1563 /* List of prefixes to try when looking for include files. */
1565 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1567 /* Suffix to attach to directories searched for commands.
1568 This looks like `MACHINE/VERSION/'. */
1570 static const char *machine_suffix
= 0;
1572 /* Suffix to attach to directories searched for commands.
1573 This is just `MACHINE/'. */
1575 static const char *just_machine_suffix
= 0;
1577 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1579 static const char *gcc_exec_prefix
;
1581 /* Adjusted value of standard_libexec_prefix. */
1583 static const char *gcc_libexec_prefix
;
1585 /* Default prefixes to attach to command names. */
1587 #ifndef STANDARD_STARTFILE_PREFIX_1
1588 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1590 #ifndef STANDARD_STARTFILE_PREFIX_2
1591 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1594 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1595 #undef MD_EXEC_PREFIX
1596 #undef MD_STARTFILE_PREFIX
1597 #undef MD_STARTFILE_PREFIX_1
1600 /* If no prefixes defined, use the null string, which will disable them. */
1601 #ifndef MD_EXEC_PREFIX
1602 #define MD_EXEC_PREFIX ""
1604 #ifndef MD_STARTFILE_PREFIX
1605 #define MD_STARTFILE_PREFIX ""
1607 #ifndef MD_STARTFILE_PREFIX_1
1608 #define MD_STARTFILE_PREFIX_1 ""
1611 /* These directories are locations set at configure-time based on the
1612 --prefix option provided to configure. Their initializers are
1613 defined in Makefile.in. These paths are not *directly* used when
1614 gcc_exec_prefix is set because, in that case, we know where the
1615 compiler has been installed, and use paths relative to that
1616 location instead. */
1617 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1618 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1619 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1620 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1622 /* For native compilers, these are well-known paths containing
1623 components that may be provided by the system. For cross
1624 compilers, these paths are not used. */
1625 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1626 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1627 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1628 static const char *const standard_startfile_prefix_1
1629 = STANDARD_STARTFILE_PREFIX_1
;
1630 static const char *const standard_startfile_prefix_2
1631 = STANDARD_STARTFILE_PREFIX_2
;
1633 /* A relative path to be used in finding the location of tools
1634 relative to the driver. */
1635 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1637 /* A prefix to be used when this is an accelerator compiler. */
1638 static const char *const accel_dir_suffix
= ACCEL_DIR_SUFFIX
;
1640 /* Subdirectory to use for locating libraries. Set by
1641 set_multilib_dir based on the compilation options. */
1643 static const char *multilib_dir
;
1645 /* Subdirectory to use for locating libraries in OS conventions. Set by
1646 set_multilib_dir based on the compilation options. */
1648 static const char *multilib_os_dir
;
1650 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1651 set_multilib_dir based on the compilation options. */
1653 static const char *multiarch_dir
;
1655 /* Structure to keep track of the specs that have been defined so far.
1656 These are accessed using %(specname) in a compiler or link
1661 /* The following 2 fields must be first */
1662 /* to allow EXTRA_SPECS to be initialized */
1663 const char *name
; /* name of the spec. */
1664 const char *ptr
; /* available ptr if no static pointer */
1666 /* The following fields are not initialized */
1667 /* by EXTRA_SPECS */
1668 const char **ptr_spec
; /* pointer to the spec itself. */
1669 struct spec_list
*next
; /* Next spec in linked list. */
1670 int name_len
; /* length of the name */
1671 bool user_p
; /* whether string come from file spec. */
1672 bool alloc_p
; /* whether string was allocated */
1673 const char *default_ptr
; /* The default value of *ptr_spec. */
1676 #define INIT_STATIC_SPEC(NAME,PTR) \
1677 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false, \
1680 /* List of statically defined specs. */
1681 static struct spec_list static_specs
[] =
1683 INIT_STATIC_SPEC ("asm", &asm_spec
),
1684 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1685 INIT_STATIC_SPEC ("asm_debug_option", &asm_debug_option
),
1686 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1687 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1688 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1689 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1690 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1691 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1692 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1693 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1694 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1695 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1696 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1697 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1698 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1699 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1700 INIT_STATIC_SPEC ("link", &link_spec
),
1701 INIT_STATIC_SPEC ("lib", &lib_spec
),
1702 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1703 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1704 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1705 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1706 INIT_STATIC_SPEC ("version", &compiler_version
),
1707 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1708 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1709 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1710 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1711 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1712 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1713 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1714 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1715 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1716 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1717 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1718 INIT_STATIC_SPEC ("post_link", &post_link_spec
),
1719 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1720 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1721 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1722 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1723 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1724 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1725 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1726 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1727 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1730 #ifdef EXTRA_SPECS /* additional specs needed */
1731 /* Structure to keep track of just the first two args of a spec_list.
1732 That is all that the EXTRA_SPECS macro gives us. */
1735 const char *const name
;
1736 const char *const ptr
;
1739 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1740 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1743 /* List of dynamically allocates specs that have been defined so far. */
1745 static struct spec_list
*specs
= (struct spec_list
*) 0;
1747 /* List of static spec functions. */
1749 static const struct spec_function static_spec_functions
[] =
1751 { "getenv", getenv_spec_function
},
1752 { "if-exists", if_exists_spec_function
},
1753 { "if-exists-else", if_exists_else_spec_function
},
1754 { "if-exists-then-else", if_exists_then_else_spec_function
},
1755 { "sanitize", sanitize_spec_function
},
1756 { "replace-outfile", replace_outfile_spec_function
},
1757 { "remove-outfile", remove_outfile_spec_function
},
1758 { "version-compare", version_compare_spec_function
},
1759 { "include", include_spec_function
},
1760 { "find-file", find_file_spec_function
},
1761 { "find-plugindir", find_plugindir_spec_function
},
1762 { "print-asm-header", print_asm_header_spec_function
},
1763 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1764 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1765 { "pass-through-libs", pass_through_libs_spec_func
},
1766 { "dumps", dumps_spec_func
},
1767 { "gt", greater_than_spec_func
},
1768 { "debug-level-gt", debug_level_greater_than_spec_func
},
1769 { "dwarf-version-gt", dwarf_version_greater_than_spec_func
},
1770 { "fortran-preinclude-file", find_fortran_preinclude_file
},
1771 #ifdef EXTRA_SPEC_FUNCTIONS
1772 EXTRA_SPEC_FUNCTIONS
1777 static int processing_spec_function
;
1779 /* Add appropriate libgcc specs to OBSTACK, taking into account
1780 various permutations of -shared-libgcc, -shared, and such. */
1782 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1784 #ifndef USE_LD_AS_NEEDED
1785 #define USE_LD_AS_NEEDED 0
1789 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1790 const char *static_name
, const char *eh_name
)
1794 #if USE_LD_AS_NEEDED
1795 buf
= concat ("%{static|static-libgcc|static-pie:", static_name
, " ", eh_name
, "}"
1796 "%{!static:%{!static-libgcc:%{!static-pie:"
1797 "%{!shared-libgcc:",
1798 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1799 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1802 shared_name
, "%{!shared: ", static_name
, "}"
1805 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1806 "%{!static:%{!static-libgcc:"
1808 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1809 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1813 "%{shared-libgcc:", shared_name
, "}"
1814 "%{!shared-libgcc:", static_name
, "}"
1817 "%{shared:", shared_name
, "}"
1822 obstack_grow (obstack
, buf
, strlen (buf
));
1825 #endif /* ENABLE_SHARED_LIBGCC */
1827 /* Initialize the specs lookup routines. */
1832 struct spec_list
*next
= (struct spec_list
*) 0;
1833 struct spec_list
*sl
= (struct spec_list
*) 0;
1837 return; /* Already initialized. */
1840 fnotice (stderr
, "Using built-in specs.\n");
1843 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1845 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1847 sl
= &extra_specs
[i
];
1848 sl
->name
= extra_specs_1
[i
].name
;
1849 sl
->ptr
= extra_specs_1
[i
].ptr
;
1851 sl
->name_len
= strlen (sl
->name
);
1852 sl
->ptr_spec
= &sl
->ptr
;
1853 gcc_assert (sl
->ptr_spec
!= NULL
);
1854 sl
->default_ptr
= sl
->ptr
;
1859 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1861 sl
= &static_specs
[i
];
1866 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1867 /* ??? If neither -shared-libgcc nor --static-libgcc was
1868 seen, then we should be making an educated guess. Some proposed
1869 heuristics for ELF include:
1871 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1872 program will be doing dynamic loading, which will likely
1873 need the shared libgcc.
1875 (2) If "-ldl", then it's also a fair bet that we're doing
1878 (3) For each ET_DYN we're linking against (either through -lfoo
1879 or /some/path/foo.so), check to see whether it or one of
1880 its dependencies depends on a shared libgcc.
1884 If the runtime is fixed to look for program headers instead
1885 of calling __register_frame_info at all, for each object,
1886 use the shared libgcc if any EH symbol referenced.
1888 If crtstuff is fixed to not invoke __register_frame_info
1889 automatically, for each object, use the shared libgcc if
1890 any non-empty unwind section found.
1892 Doing any of this probably requires invoking an external program to
1893 do the actual object file scanning. */
1895 const char *p
= libgcc_spec
;
1898 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1899 when given the proper command line arguments. */
1902 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1904 init_gcc_specs (&obstack
,
1906 #ifdef USE_LIBUNWIND_EXCEPTIONS
1912 #ifdef USE_LIBUNWIND_EXCEPTIONS
1913 # ifdef HAVE_LD_STATIC_DYNAMIC
1914 " %{!static:%{!static-pie:" LD_STATIC_OPTION
"}} -lunwind"
1915 " %{!static:%{!static-pie:" LD_DYNAMIC_OPTION
"}}"
1925 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1927 /* Ug. We don't know shared library extensions. Hope that
1928 systems that use this form don't do shared libraries. */
1929 init_gcc_specs (&obstack
,
1933 #ifdef USE_LIBUNWIND_EXCEPTIONS
1942 obstack_1grow (&obstack
, *p
);
1943 in_sep
= (*p
== ' ');
1948 obstack_1grow (&obstack
, '\0');
1949 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1952 #ifdef USE_AS_TRADITIONAL_FORMAT
1953 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1955 static const char tf
[] = "--traditional-format ";
1956 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1957 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1958 asm_spec
= XOBFINISH (&obstack
, const char *);
1962 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1963 defined LINKER_HASH_STYLE
1964 # ifdef LINK_BUILDID_SPEC
1965 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1966 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1968 # ifdef LINK_EH_SPEC
1969 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1970 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1972 # ifdef LINKER_HASH_STYLE
1973 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1976 static const char hash_style
[] = "--hash-style=";
1977 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1978 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1979 obstack_1grow (&obstack
, ' ');
1982 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1983 link_spec
= XOBFINISH (&obstack
, const char *);
1989 /* Update the entry for SPEC in the static_specs table to point to VALUE,
1990 ensuring that we free the previous value if necessary. Set alloc_p for the
1991 entry to ALLOC_P: this determines whether we take ownership of VALUE (i.e.
1992 whether we need to free it later on). */
1994 set_static_spec (const char **spec
, const char *value
, bool alloc_p
)
1996 struct spec_list
*sl
= NULL
;
1998 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
2000 if (static_specs
[i
].ptr_spec
== spec
)
2002 sl
= static_specs
+ i
;
2011 const char *old
= *spec
;
2012 free (const_cast <char *> (old
));
2016 sl
->alloc_p
= alloc_p
;
2019 /* Update a static spec to a new string, taking ownership of that
2021 static void set_static_spec_owned (const char **spec
, const char *val
)
2023 return set_static_spec (spec
, val
, true);
2026 /* Update a static spec to point to a new value, but don't take
2027 ownership of (i.e. don't free) that string. */
2028 static void set_static_spec_shared (const char **spec
, const char *val
)
2030 return set_static_spec (spec
, val
, false);
2034 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
2035 removed; If the spec starts with a + then SPEC is added to the end of the
2039 set_spec (const char *name
, const char *spec
, bool user_p
)
2041 struct spec_list
*sl
;
2042 const char *old_spec
;
2043 int name_len
= strlen (name
);
2046 /* If this is the first call, initialize the statically allocated specs. */
2049 struct spec_list
*next
= (struct spec_list
*) 0;
2050 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
2052 sl
= &static_specs
[i
];
2059 /* See if the spec already exists. */
2060 for (sl
= specs
; sl
; sl
= sl
->next
)
2061 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
2066 /* Not found - make it. */
2067 sl
= XNEW (struct spec_list
);
2068 sl
->name
= xstrdup (name
);
2069 sl
->name_len
= name_len
;
2070 sl
->ptr_spec
= &sl
->ptr
;
2072 *(sl
->ptr_spec
) = "";
2074 sl
->default_ptr
= NULL
;
2078 old_spec
= *(sl
->ptr_spec
);
2079 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
2080 ? concat (old_spec
, spec
+ 1, NULL
)
2085 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
2088 /* Free the old spec. */
2089 if (old_spec
&& sl
->alloc_p
)
2090 free (CONST_CAST (char *, old_spec
));
2092 sl
->user_p
= user_p
;
2096 /* Accumulate a command (program name and args), and run it. */
2098 typedef const char *const_char_p
; /* For DEF_VEC_P. */
2100 /* Vector of pointers to arguments in the current line of specifications. */
2101 static vec
<const_char_p
> argbuf
;
2103 /* Likewise, but for the current @file. */
2104 static vec
<const_char_p
> at_file_argbuf
;
2106 /* Whether an @file is currently open. */
2107 static bool in_at_file
= false;
2109 /* Were the options -c, -S or -E passed. */
2110 static int have_c
= 0;
2112 /* Was the option -o passed. */
2113 static int have_o
= 0;
2115 /* Was the option -E passed. */
2116 static int have_E
= 0;
2118 /* Pointer to output file name passed in with -o. */
2119 static const char *output_file
= 0;
2121 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
2122 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2125 static struct temp_name
{
2126 const char *suffix
; /* suffix associated with the code. */
2127 int length
; /* strlen (suffix). */
2128 int unique
; /* Indicates whether %g or %u/%U was used. */
2129 const char *filename
; /* associated filename. */
2130 int filename_length
; /* strlen (filename). */
2131 struct temp_name
*next
;
2134 /* Number of commands executed so far. */
2136 static int execution_count
;
2138 /* Number of commands that exited with a signal. */
2140 static int signal_count
;
2142 /* Allocate the argument vector. */
2148 at_file_argbuf
.create (10);
2151 /* Clear out the vector of arguments (after a command is executed). */
2156 argbuf
.truncate (0);
2157 at_file_argbuf
.truncate (0);
2160 /* Add one argument to the vector at the end.
2161 This is done when a space is seen or at the end of the line.
2162 If DELETE_ALWAYS is nonzero, the arg is a filename
2163 and the file should be deleted eventually.
2164 If DELETE_FAILURE is nonzero, the arg is a filename
2165 and the file should be deleted if this compilation fails. */
2168 store_arg (const char *arg
, int delete_always
, int delete_failure
)
2171 at_file_argbuf
.safe_push (arg
);
2173 argbuf
.safe_push (arg
);
2175 if (delete_always
|| delete_failure
)
2178 /* If the temporary file we should delete is specified as
2179 part of a joined argument extract the filename. */
2181 && (p
= strrchr (arg
, '=')))
2183 record_temp_file (arg
, delete_always
, delete_failure
);
2187 /* Open a temporary @file into which subsequent arguments will be stored. */
2193 fatal_error (input_location
, "cannot open nested response file");
2198 /* Close the temporary @file and add @file to the argument list. */
2201 close_at_file (void)
2204 fatal_error (input_location
, "cannot close nonexistent response file");
2208 const unsigned int n_args
= at_file_argbuf
.length ();
2212 char **argv
= (char **) alloca (sizeof (char *) * (n_args
+ 1));
2213 char *temp_file
= make_temp_file ("");
2214 char *at_argument
= concat ("@", temp_file
, NULL
);
2215 FILE *f
= fopen (temp_file
, "w");
2219 /* Copy the strings over. */
2220 for (i
= 0; i
< n_args
; i
++)
2221 argv
[i
] = CONST_CAST (char *, at_file_argbuf
[i
]);
2224 at_file_argbuf
.truncate (0);
2227 fatal_error (input_location
, "could not open temporary response file %s",
2230 status
= writeargv (argv
, f
);
2233 fatal_error (input_location
,
2234 "could not write to temporary response file %s",
2237 status
= fclose (f
);
2240 fatal_error (input_location
, "could not close temporary response file %s",
2243 store_arg (at_argument
, 0, 0);
2245 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
2248 /* Load specs from a file name named FILENAME, replacing occurrences of
2249 various different types of line-endings, \r\n, \n\r and just \r, with
2253 load_specs (const char *filename
)
2257 struct stat statbuf
;
2264 fnotice (stderr
, "Reading specs from %s\n", filename
);
2266 /* Open and stat the file. */
2267 desc
= open (filename
, O_RDONLY
, 0);
2271 /* This leaves DESC open, but the OS will save us. */
2272 fatal_error (input_location
, "cannot read spec file %qs: %m", filename
);
2275 if (stat (filename
, &statbuf
) < 0)
2278 /* Read contents of file into BUFFER. */
2279 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2280 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2283 buffer
[readlen
] = 0;
2286 specs
= XNEWVEC (char, readlen
+ 1);
2288 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2294 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2296 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2310 /* Read compilation specs from a file named FILENAME,
2311 replacing the default ones.
2313 A suffix which starts with `*' is a definition for
2314 one of the machine-specific sub-specs. The "suffix" should be
2315 *asm, *cc1, *cpp, *link, *startfile, etc.
2316 The corresponding spec is stored in asm_spec, etc.,
2317 rather than in the `compilers' vector.
2319 Anything invalid in the file is a fatal error. */
2322 read_specs (const char *filename
, bool main_p
, bool user_p
)
2327 buffer
= load_specs (filename
);
2329 /* Scan BUFFER for specs, putting them in the vector. */
2335 char *in
, *out
, *p1
, *p2
, *p3
;
2337 /* Advance P in BUFFER to the next nonblank nocomment line. */
2338 p
= skip_whitespace (p
);
2342 /* Is this a special command that starts with '%'? */
2343 /* Don't allow this for the main specs file, since it would
2344 encourage people to overwrite it. */
2345 if (*p
== '%' && !main_p
)
2348 while (*p
&& *p
!= '\n')
2354 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2355 && (p1
[sizeof "%include" - 1] == ' '
2356 || p1
[sizeof "%include" - 1] == '\t'))
2360 p1
+= sizeof ("%include");
2361 while (*p1
== ' ' || *p1
== '\t')
2364 if (*p1
++ != '<' || p
[-2] != '>')
2365 fatal_error (input_location
,
2366 "specs %%include syntax malformed after "
2368 (long) (p1
- buffer
+ 1));
2371 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2372 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
2375 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2376 && (p1
[sizeof "%include_noerr" - 1] == ' '
2377 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2381 p1
+= sizeof "%include_noerr";
2382 while (*p1
== ' ' || *p1
== '\t')
2385 if (*p1
++ != '<' || p
[-2] != '>')
2386 fatal_error (input_location
,
2387 "specs %%include syntax malformed after "
2389 (long) (p1
- buffer
+ 1));
2392 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2394 read_specs (new_filename
, false, user_p
);
2395 else if (verbose_flag
)
2396 fnotice (stderr
, "could not find specs file %s\n", p1
);
2399 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2400 && (p1
[sizeof "%rename" - 1] == ' '
2401 || p1
[sizeof "%rename" - 1] == '\t'))
2404 struct spec_list
*sl
;
2405 struct spec_list
*newsl
;
2407 /* Get original name. */
2408 p1
+= sizeof "%rename";
2409 while (*p1
== ' ' || *p1
== '\t')
2412 if (! ISALPHA ((unsigned char) *p1
))
2413 fatal_error (input_location
,
2414 "specs %%rename syntax malformed after "
2416 (long) (p1
- buffer
));
2419 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2422 if (*p2
!= ' ' && *p2
!= '\t')
2423 fatal_error (input_location
,
2424 "specs %%rename syntax malformed after "
2426 (long) (p2
- buffer
));
2430 while (*p2
== ' ' || *p2
== '\t')
2433 if (! ISALPHA ((unsigned char) *p2
))
2434 fatal_error (input_location
,
2435 "specs %%rename syntax malformed after "
2437 (long) (p2
- buffer
));
2439 /* Get new spec name. */
2441 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2445 fatal_error (input_location
,
2446 "specs %%rename syntax malformed after "
2448 (long) (p3
- buffer
));
2451 for (sl
= specs
; sl
; sl
= sl
->next
)
2452 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2456 fatal_error (input_location
,
2457 "specs %s spec was not found to be renamed", p1
);
2459 if (strcmp (p1
, p2
) == 0)
2462 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2463 if (strcmp (newsl
->name
, p2
) == 0)
2464 fatal_error (input_location
,
2465 "%s: attempt to rename spec %qs to "
2466 "already defined spec %qs",
2471 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
2473 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2477 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2479 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2481 *(sl
->ptr_spec
) = "";
2486 fatal_error (input_location
,
2487 "specs unknown %% command after %ld characters",
2488 (long) (p1
- buffer
));
2491 /* Find the colon that should end the suffix. */
2493 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2496 /* The colon shouldn't be missing. */
2498 fatal_error (input_location
,
2499 "specs file malformed after %ld characters",
2500 (long) (p1
- buffer
));
2502 /* Skip back over trailing whitespace. */
2504 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2507 /* Copy the suffix to a string. */
2508 suffix
= save_string (p
, p2
- p
);
2509 /* Find the next line. */
2510 p
= skip_whitespace (p1
+ 1);
2512 fatal_error (input_location
,
2513 "specs file malformed after %ld characters",
2514 (long) (p
- buffer
));
2517 /* Find next blank line or end of string. */
2518 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2521 /* Specs end at the blank line and do not include the newline. */
2522 spec
= save_string (p
, p1
- p
);
2525 /* Delete backslash-newline sequences from the spec. */
2530 if (in
[0] == '\\' && in
[1] == '\n')
2532 else if (in
[0] == '#')
2533 while (*in
&& *in
!= '\n')
2541 if (suffix
[0] == '*')
2543 if (! strcmp (suffix
, "*link_command"))
2544 link_command_spec
= spec
;
2547 set_spec (suffix
+ 1, spec
, user_p
);
2553 /* Add this pair to the vector. */
2555 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2557 compilers
[n_compilers
].suffix
= suffix
;
2558 compilers
[n_compilers
].spec
= spec
;
2560 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2564 link_command_spec
= spec
;
2567 if (link_command_spec
== 0)
2568 fatal_error (input_location
, "spec file has no spec for linking");
2570 XDELETEVEC (buffer
);
2573 /* Record the names of temporary files we tell compilers to write,
2574 and delete them at the end of the run. */
2576 /* This is the common prefix we use to make temp file names.
2577 It is chosen once for each run of this program.
2578 It is substituted into a spec by %g or %j.
2579 Thus, all temp file names contain this prefix.
2580 In practice, all temp file names start with this prefix.
2582 This prefix comes from the envvar TMPDIR if it is defined;
2583 otherwise, from the P_tmpdir macro if that is defined;
2584 otherwise, in /usr/tmp or /tmp;
2585 or finally the current directory if all else fails. */
2587 static const char *temp_filename
;
2589 /* Length of the prefix. */
2591 static int temp_filename_length
;
2593 /* Define the list of temporary files to delete. */
2598 struct temp_file
*next
;
2601 /* Queue of files to delete on success or failure of compilation. */
2602 static struct temp_file
*always_delete_queue
;
2603 /* Queue of files to delete on failure of compilation. */
2604 static struct temp_file
*failure_delete_queue
;
2606 /* Record FILENAME as a file to be deleted automatically.
2607 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2608 otherwise delete it in any case.
2609 FAIL_DELETE nonzero means delete it if a compilation step fails;
2610 otherwise delete it in any case. */
2613 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2615 char *const name
= xstrdup (filename
);
2619 struct temp_file
*temp
;
2620 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2621 if (! filename_cmp (name
, temp
->name
))
2627 temp
= XNEW (struct temp_file
);
2628 temp
->next
= always_delete_queue
;
2630 always_delete_queue
= temp
;
2637 struct temp_file
*temp
;
2638 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2639 if (! filename_cmp (name
, temp
->name
))
2645 temp
= XNEW (struct temp_file
);
2646 temp
->next
= failure_delete_queue
;
2648 failure_delete_queue
= temp
;
2654 /* Delete all the temporary files whose names we previously recorded. */
2656 #ifndef DELETE_IF_ORDINARY
2657 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2660 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2661 if (unlink (NAME) < 0) \
2663 error ("%s: %m", (NAME)); \
2668 delete_if_ordinary (const char *name
)
2674 printf ("Delete %s? (y or n) ", name
);
2678 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2681 if (i
== 'y' || i
== 'Y')
2683 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2687 delete_temp_files (void)
2689 struct temp_file
*temp
;
2691 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2692 delete_if_ordinary (temp
->name
);
2693 always_delete_queue
= 0;
2696 /* Delete all the files to be deleted on error. */
2699 delete_failure_queue (void)
2701 struct temp_file
*temp
;
2703 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2704 delete_if_ordinary (temp
->name
);
2708 clear_failure_queue (void)
2710 failure_delete_queue
= 0;
2713 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2715 If DO_MULTI is true iterate over the paths twice, first with multilib
2716 suffix then without, otherwise iterate over the paths once without
2717 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2718 to avoid visiting the same path twice, but we could do better. For
2719 instance, /usr/lib/../lib is considered different from /usr/lib.
2720 At least EXTRA_SPACE chars past the end of the path passed to
2721 CALLBACK are available for use by the callback.
2722 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2724 Returns the value returned by CALLBACK. */
2727 for_each_path (const struct path_prefix
*paths
,
2730 void *(*callback
) (char *, void *),
2731 void *callback_info
)
2733 struct prefix_list
*pl
;
2734 const char *multi_dir
= NULL
;
2735 const char *multi_os_dir
= NULL
;
2736 const char *multiarch_suffix
= NULL
;
2737 const char *multi_suffix
;
2738 const char *just_multi_suffix
;
2741 bool skip_multi_dir
= false;
2742 bool skip_multi_os_dir
= false;
2744 multi_suffix
= machine_suffix
;
2745 just_multi_suffix
= just_machine_suffix
;
2746 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2748 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2749 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2750 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2752 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2753 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2755 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2759 size_t multi_dir_len
= 0;
2760 size_t multi_os_dir_len
= 0;
2761 size_t multiarch_len
= 0;
2763 size_t just_suffix_len
;
2767 multi_dir_len
= strlen (multi_dir
);
2769 multi_os_dir_len
= strlen (multi_os_dir
);
2770 if (multiarch_suffix
)
2771 multiarch_len
= strlen (multiarch_suffix
);
2772 suffix_len
= strlen (multi_suffix
);
2773 just_suffix_len
= strlen (just_multi_suffix
);
2777 len
= paths
->max_len
+ extra_space
+ 1;
2778 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2779 path
= XNEWVEC (char, len
);
2782 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2784 len
= strlen (pl
->prefix
);
2785 memcpy (path
, pl
->prefix
, len
);
2787 /* Look first in MACHINE/VERSION subdirectory. */
2788 if (!skip_multi_dir
)
2790 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2791 ret
= callback (path
, callback_info
);
2796 /* Some paths are tried with just the machine (ie. target)
2797 subdir. This is used for finding as, ld, etc. */
2799 && pl
->require_machine_suffix
== 2)
2801 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2802 ret
= callback (path
, callback_info
);
2807 /* Now try the multiarch path. */
2809 && !pl
->require_machine_suffix
&& multiarch_dir
)
2811 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2812 ret
= callback (path
, callback_info
);
2817 /* Now try the base path. */
2818 if (!pl
->require_machine_suffix
2819 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2821 const char *this_multi
;
2822 size_t this_multi_len
;
2824 if (pl
->os_multilib
)
2826 this_multi
= multi_os_dir
;
2827 this_multi_len
= multi_os_dir_len
;
2831 this_multi
= multi_dir
;
2832 this_multi_len
= multi_dir_len
;
2836 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2840 ret
= callback (path
, callback_info
);
2848 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2851 /* Run through the paths again, this time without multilibs.
2852 Don't repeat any we have already seen. */
2855 free (CONST_CAST (char *, multi_dir
));
2857 free (CONST_CAST (char *, multi_suffix
));
2858 multi_suffix
= machine_suffix
;
2859 free (CONST_CAST (char *, just_multi_suffix
));
2860 just_multi_suffix
= just_machine_suffix
;
2863 skip_multi_dir
= true;
2866 free (CONST_CAST (char *, multi_os_dir
));
2867 multi_os_dir
= NULL
;
2870 skip_multi_os_dir
= true;
2875 free (CONST_CAST (char *, multi_dir
));
2876 free (CONST_CAST (char *, multi_suffix
));
2877 free (CONST_CAST (char *, just_multi_suffix
));
2880 free (CONST_CAST (char *, multi_os_dir
));
2886 /* Callback for build_search_list. Adds path to obstack being built. */
2888 struct add_to_obstack_info
{
2895 add_to_obstack (char *path
, void *data
)
2897 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2899 if (info
->check_dir
&& !is_directory (path
, false))
2902 if (!info
->first_time
)
2903 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2905 obstack_grow (info
->ob
, path
, strlen (path
));
2907 info
->first_time
= false;
2911 /* Add or change the value of an environment variable, outputting the
2912 change to standard error if in verbose mode. */
2914 xputenv (const char *string
)
2919 /* Build a list of search directories from PATHS.
2920 PREFIX is a string to prepend to the list.
2921 If CHECK_DIR_P is true we ensure the directory exists.
2922 If DO_MULTI is true, multilib paths are output first, then
2924 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2925 It is also used by the --print-search-dirs flag. */
2928 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2929 bool check_dir
, bool do_multi
)
2931 struct add_to_obstack_info info
;
2933 info
.ob
= &collect_obstack
;
2934 info
.check_dir
= check_dir
;
2935 info
.first_time
= true;
2937 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2938 obstack_1grow (&collect_obstack
, '=');
2940 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2942 obstack_1grow (&collect_obstack
, '\0');
2943 return XOBFINISH (&collect_obstack
, char *);
2946 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2950 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2953 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2956 /* Check whether NAME can be accessed in MODE. This is like access,
2957 except that it never considers directories to be executable. */
2960 access_check (const char *name
, int mode
)
2966 if (stat (name
, &st
) < 0
2967 || S_ISDIR (st
.st_mode
))
2971 return access (name
, mode
);
2974 /* Callback for find_a_file. Appends the file name to the directory
2975 path. If the resulting file exists in the right mode, return the
2976 full pathname to the file. */
2978 struct file_at_path_info
{
2987 file_at_path (char *path
, void *data
)
2989 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2990 size_t len
= strlen (path
);
2992 memcpy (path
+ len
, info
->name
, info
->name_len
);
2993 len
+= info
->name_len
;
2995 /* Some systems have a suffix for executable files.
2996 So try appending that first. */
2997 if (info
->suffix_len
)
2999 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
3000 if (access_check (path
, info
->mode
) == 0)
3005 if (access_check (path
, info
->mode
) == 0)
3011 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
3012 access to check permissions. If DO_MULTI is true, search multilib
3013 paths then non-multilib paths, otherwise do not search multilib paths.
3014 Return 0 if not found, otherwise return its name, allocated with malloc. */
3017 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
3020 struct file_at_path_info info
;
3022 #ifdef DEFAULT_ASSEMBLER
3023 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
3024 return xstrdup (DEFAULT_ASSEMBLER
);
3027 #ifdef DEFAULT_LINKER
3028 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
3029 return xstrdup (DEFAULT_LINKER
);
3032 /* Determine the filename to execute (special case for absolute paths). */
3034 if (IS_ABSOLUTE_PATH (name
))
3036 if (access (name
, mode
) == 0)
3037 return xstrdup (name
);
3043 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
3044 info
.name_len
= strlen (info
.name
);
3045 info
.suffix_len
= strlen (info
.suffix
);
3048 return (char*) for_each_path (pprefix
, do_multi
,
3049 info
.name_len
+ info
.suffix_len
,
3050 file_at_path
, &info
);
3053 /* Ranking of prefixes in the sort list. -B prefixes are put before
3056 enum path_prefix_priority
3058 PREFIX_PRIORITY_B_OPT
,
3059 PREFIX_PRIORITY_LAST
3062 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
3063 order according to PRIORITY. Within each PRIORITY, new entries are
3066 If WARN is nonzero, we will warn if no file is found
3067 through this prefix. WARN should point to an int
3068 which will be set to 1 if this entry is used.
3070 COMPONENT is the value to be passed to update_path.
3072 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
3073 the complete value of machine_suffix.
3074 2 means try both machine_suffix and just_machine_suffix. */
3077 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
3078 const char *component
, /* enum prefix_priority */ int priority
,
3079 int require_machine_suffix
, int os_multilib
)
3081 struct prefix_list
*pl
, **prev
;
3084 for (prev
= &pprefix
->plist
;
3085 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
3086 prev
= &(*prev
)->next
)
3089 /* Keep track of the longest prefix. */
3091 prefix
= update_path (prefix
, component
);
3092 len
= strlen (prefix
);
3093 if (len
> pprefix
->max_len
)
3094 pprefix
->max_len
= len
;
3096 pl
= XNEW (struct prefix_list
);
3097 pl
->prefix
= prefix
;
3098 pl
->require_machine_suffix
= require_machine_suffix
;
3099 pl
->priority
= priority
;
3100 pl
->os_multilib
= os_multilib
;
3102 /* Insert after PREV. */
3107 /* Same as add_prefix, but prepending target_system_root to prefix. */
3108 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
3110 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
3111 const char *component
,
3112 /* enum prefix_priority */ int priority
,
3113 int require_machine_suffix
, int os_multilib
)
3115 if (!IS_ABSOLUTE_PATH (prefix
))
3116 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
3118 if (target_system_root
)
3120 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
3121 size_t sysroot_len
= strlen (target_system_root
);
3124 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
3125 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
3127 if (target_sysroot_suffix
)
3128 prefix
= concat (sysroot_no_trailing_dir_separator
,
3129 target_sysroot_suffix
, prefix
, NULL
);
3131 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
3133 free (sysroot_no_trailing_dir_separator
);
3135 /* We have to override this because GCC's notion of sysroot
3136 moves along with GCC. */
3140 add_prefix (pprefix
, prefix
, component
, priority
,
3141 require_machine_suffix
, os_multilib
);
3144 /* Same as add_prefix, but prepending target_sysroot_hdrs_suffix to prefix. */
3147 add_sysrooted_hdrs_prefix (struct path_prefix
*pprefix
, const char *prefix
,
3148 const char *component
,
3149 /* enum prefix_priority */ int priority
,
3150 int require_machine_suffix
, int os_multilib
)
3152 if (!IS_ABSOLUTE_PATH (prefix
))
3153 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
3155 if (target_system_root
)
3157 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
3158 size_t sysroot_len
= strlen (target_system_root
);
3161 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
3162 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
3164 if (target_sysroot_hdrs_suffix
)
3165 prefix
= concat (sysroot_no_trailing_dir_separator
,
3166 target_sysroot_hdrs_suffix
, prefix
, NULL
);
3168 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
3170 free (sysroot_no_trailing_dir_separator
);
3172 /* We have to override this because GCC's notion of sysroot
3173 moves along with GCC. */
3177 add_prefix (pprefix
, prefix
, component
, priority
,
3178 require_machine_suffix
, os_multilib
);
3182 /* Execute the command specified by the arguments on the current line of spec.
3183 When using pipes, this includes several piped-together commands
3184 with `|' between them.
3186 Return 0 if successful, -1 if failed. */
3192 int n_commands
; /* # of command. */
3194 struct pex_obj
*pex
;
3197 const char *prog
; /* program name. */
3198 const char **argv
; /* vector of args. */
3202 struct command
*commands
; /* each command buffer with above info. */
3204 gcc_assert (!processing_spec_function
);
3208 string
= find_a_file (&exec_prefixes
,
3209 argbuf
[0], X_OK
, false);
3212 insert_wrapper (wrapper_string
);
3215 /* Count # of piped commands. */
3216 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
3217 if (strcmp (arg
, "|") == 0)
3220 /* Get storage for each command. */
3221 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
3223 /* Split argbuf into its separate piped processes,
3224 and record info about each one.
3225 Also search for the programs that are to be run. */
3227 argbuf
.safe_push (0);
3229 commands
[0].prog
= argbuf
[0]; /* first command. */
3230 commands
[0].argv
= argbuf
.address ();
3232 if (!wrapper_string
)
3234 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
3236 commands
[0].argv
[0] = string
;
3239 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
3240 if (arg
&& strcmp (arg
, "|") == 0)
3241 { /* each command. */
3242 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
3243 fatal_error (input_location
, "%<-pipe%> not supported");
3245 argbuf
[i
] = 0; /* Termination of command args. */
3246 commands
[n_commands
].prog
= argbuf
[i
+ 1];
3247 commands
[n_commands
].argv
3248 = &(argbuf
.address ())[i
+ 1];
3249 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
3252 commands
[n_commands
].argv
[0] = string
;
3256 /* If -v, print what we are about to do, and maybe query. */
3260 /* For help listings, put a blank line between sub-processes. */
3261 if (print_help_list
)
3262 fputc ('\n', stderr
);
3264 /* Print each piped command as a separate line. */
3265 for (i
= 0; i
< n_commands
; i
++)
3267 const char *const *j
;
3269 if (verbose_only_flag
)
3271 for (j
= commands
[i
].argv
; *j
; j
++)
3274 for (p
= *j
; *p
; ++p
)
3275 if (!ISALNUM ((unsigned char) *p
)
3276 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
3280 fprintf (stderr
, " \"");
3281 for (p
= *j
; *p
; ++p
)
3283 if (*p
== '"' || *p
== '\\' || *p
== '$')
3284 fputc ('\\', stderr
);
3287 fputc ('"', stderr
);
3289 /* If it's empty, print "". */
3291 fprintf (stderr
, " \"\"");
3293 fprintf (stderr
, " %s", *j
);
3297 for (j
= commands
[i
].argv
; *j
; j
++)
3298 /* If it's empty, print "". */
3300 fprintf (stderr
, " \"\"");
3302 fprintf (stderr
, " %s", *j
);
3304 /* Print a pipe symbol after all but the last command. */
3305 if (i
+ 1 != n_commands
)
3306 fprintf (stderr
, " |");
3307 fprintf (stderr
, "\n");
3310 if (verbose_only_flag
!= 0)
3312 /* verbose_only_flag should act as if the spec was
3313 executed, so increment execution_count before
3314 returning. This prevents spurious warnings about
3315 unused linker input files, etc. */
3320 fnotice (stderr
, "\nGo ahead? (y or n) ");
3324 while (getchar () != '\n')
3327 if (i
!= 'y' && i
!= 'Y')
3332 #ifdef ENABLE_VALGRIND_CHECKING
3333 /* Run the each command through valgrind. To simplify prepending the
3334 path to valgrind and the option "-q" (for quiet operation unless
3335 something triggers), we allocate a separate argv array. */
3337 for (i
= 0; i
< n_commands
; i
++)
3343 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3346 argv
= XALLOCAVEC (const char *, argc
+ 3);
3348 argv
[0] = VALGRIND_PATH
;
3350 for (j
= 2; j
< argc
+ 2; j
++)
3351 argv
[j
] = commands
[i
].argv
[j
- 2];
3354 commands
[i
].argv
= argv
;
3355 commands
[i
].prog
= argv
[0];
3359 /* Run each piped subprocess. */
3361 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3362 ? PEX_RECORD_TIMES
: 0),
3363 progname
, temp_filename
);
3365 fatal_error (input_location
, "%<pex_init%> failed: %m");
3367 for (i
= 0; i
< n_commands
; i
++)
3371 const char *string
= commands
[i
].argv
[0];
3373 errmsg
= pex_run (pex
,
3374 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3375 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3376 string
, CONST_CAST (char **, commands
[i
].argv
),
3381 fatal_error (input_location
,
3382 err
? G_("cannot execute %qs: %s: %m")
3383 : G_("cannot execute %qs: %s"),
3387 if (i
&& string
!= commands
[i
].prog
)
3388 free (CONST_CAST (char *, string
));
3393 /* Wait for all the subprocesses to finish. */
3397 struct pex_time
*times
= NULL
;
3400 statuses
= (int *) alloca (n_commands
* sizeof (int));
3401 if (!pex_get_status (pex
, n_commands
, statuses
))
3402 fatal_error (input_location
, "failed to get exit status: %m");
3404 if (report_times
|| report_times_to_file
)
3406 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3407 if (!pex_get_times (pex
, n_commands
, times
))
3408 fatal_error (input_location
, "failed to get process times: %m");
3413 for (i
= 0; i
< n_commands
; ++i
)
3415 int status
= statuses
[i
];
3417 if (WIFSIGNALED (status
))
3418 switch (WTERMSIG (status
))
3422 /* SIGQUIT and SIGKILL are not available on MinGW. */
3429 /* The user (or environment) did something to the
3430 inferior. Making this an ICE confuses the user into
3431 thinking there's a compiler bug. Much more likely is
3432 the user or OOM killer nuked it. */
3433 fatal_error (input_location
,
3434 "%s signal terminated program %s",
3435 strsignal (WTERMSIG (status
)),
3441 /* SIGPIPE is a special case. It happens in -pipe mode
3442 when the compiler dies before the preprocessor is
3443 done, or the assembler dies before the compiler is
3444 done. There's generally been an error already, and
3445 this is just fallout. So don't generate another
3446 error unless we would otherwise have succeeded. */
3447 if (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
)
3457 /* The inferior failed to catch the signal. */
3458 internal_error_no_backtrace ("%s signal terminated program %s",
3459 strsignal (WTERMSIG (status
)),
3462 else if (WIFEXITED (status
)
3463 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3465 /* For ICEs in cc1, cc1obj, cc1plus see if it is
3466 reproducible or not. */
3469 && WEXITSTATUS (status
) == ICE_EXIT_CODE
3471 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
3472 && ! strncmp (p
+ 1, "cc1", 3))
3473 try_generate_repro (commands
[0].argv
);
3474 if (WEXITSTATUS (status
) > greatest_status
)
3475 greatest_status
= WEXITSTATUS (status
);
3479 if (report_times
|| report_times_to_file
)
3481 struct pex_time
*pt
= ×
[i
];
3484 ut
= ((double) pt
->user_seconds
3485 + (double) pt
->user_microseconds
/ 1.0e6
);
3486 st
= ((double) pt
->system_seconds
3487 + (double) pt
->system_microseconds
/ 1.0e6
);
3492 fnotice (stderr
, "# %s %.2f %.2f\n",
3493 commands
[i
].prog
, ut
, st
);
3495 if (report_times_to_file
)
3498 const char *const *j
;
3500 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3502 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3505 for (p
= *j
; *p
; ++p
)
3506 if (*p
== '"' || *p
== '\\' || *p
== '$'
3512 fprintf (report_times_to_file
, " \"");
3513 for (p
= *j
; *p
; ++p
)
3515 if (*p
== '"' || *p
== '\\' || *p
== '$')
3516 fputc ('\\', report_times_to_file
);
3517 fputc (*p
, report_times_to_file
);
3519 fputc ('"', report_times_to_file
);
3522 fprintf (report_times_to_file
, " %s", *j
);
3525 fputc ('\n', report_times_to_file
);
3531 if (commands
[0].argv
[0] != commands
[0].prog
)
3532 free (CONST_CAST (char *, commands
[0].argv
[0]));
3538 /* Find all the switches given to us
3539 and make a vector describing them.
3540 The elements of the vector are strings, one per switch given.
3541 If a switch uses following arguments, then the `part1' field
3542 is the switch itself and the `args' field
3543 is a null-terminated vector containing the following arguments.
3544 Bits in the `live_cond' field are:
3545 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3546 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3547 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3548 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored.
3549 SWITCH_KEEP_FOR_GCC to indicate that this switch, otherwise ignored,
3550 should be included in COLLECT_GCC_OPTIONS.
3551 in all do_spec calls afterwards. Used for %<S from self specs.
3552 The `known' field describes whether this is an internal switch.
3553 The `validated' field describes whether any spec has looked at this switch;
3554 if it remains false at the end of the run, the switch must be meaningless.
3555 The `ordering' field is used to temporarily mark switches that have to be
3556 kept in a specific order. */
3558 #define SWITCH_LIVE (1 << 0)
3559 #define SWITCH_FALSE (1 << 1)
3560 #define SWITCH_IGNORE (1 << 2)
3561 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
3562 #define SWITCH_KEEP_FOR_GCC (1 << 4)
3568 unsigned int live_cond
;
3574 static struct switchstr
*switches
;
3576 static int n_switches
;
3578 static int n_switches_alloc
;
3580 /* Set to zero if -fcompare-debug is disabled, positive if it's
3581 enabled and we're running the first compilation, negative if it's
3582 enabled and we're running the second compilation. For most of the
3583 time, it's in the range -1..1, but it can be temporarily set to 2
3584 or 3 to indicate that the -fcompare-debug flags didn't come from
3585 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3586 variable, until a synthesized -fcompare-debug flag is added to the
3590 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3591 int compare_debug_second
;
3593 /* Set to the flags that should be passed to the second compilation in
3594 a -fcompare-debug compilation. */
3595 const char *compare_debug_opt
;
3597 static struct switchstr
*switches_debug_check
[2];
3599 static int n_switches_debug_check
[2];
3601 static int n_switches_alloc_debug_check
[2];
3603 static char *debug_check_temp_file
[2];
3605 /* Language is one of three things:
3607 1) The name of a real programming language.
3608 2) NULL, indicating that no one has figured out
3610 3) '*', indicating that the file should be passed
3615 const char *language
;
3616 struct compiler
*incompiler
;
3621 /* Also a vector of input files specified. */
3623 static struct infile
*infiles
;
3627 static int n_infiles_alloc
;
3629 /* True if undefined environment variables encountered during spec processing
3630 are ok to ignore, typically when we're running for --help or --version. */
3632 static bool spec_undefvar_allowed
;
3634 /* True if multiple input files are being compiled to a single
3637 static bool combine_inputs
;
3639 /* This counts the number of libraries added by lang_specific_driver, so that
3640 we can tell if there were any user supplied any files or libraries. */
3642 static int added_libraries
;
3644 /* And a vector of corresponding output files is made up later. */
3646 const char **outfiles
;
3648 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3650 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3651 is true if we should look for an executable suffix. DO_OBJ
3652 is true if we should look for an object suffix. */
3655 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3656 int do_obj ATTRIBUTE_UNUSED
)
3658 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3666 len
= strlen (name
);
3668 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3669 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3670 if (do_obj
&& len
> 2
3671 && name
[len
- 2] == '.'
3672 && name
[len
- 1] == 'o')
3674 obstack_grow (&obstack
, name
, len
- 2);
3675 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3676 name
= XOBFINISH (&obstack
, const char *);
3680 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3681 /* If there is no filetype, make it the executable suffix (which includes
3682 the "."). But don't get confused if we have just "-o". */
3683 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || not_actual_file_p (name
))
3686 for (i
= len
- 1; i
>= 0; i
--)
3687 if (IS_DIR_SEPARATOR (name
[i
]))
3690 for (i
++; i
< len
; i
++)
3694 obstack_grow (&obstack
, name
, len
);
3695 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3696 strlen (TARGET_EXECUTABLE_SUFFIX
));
3697 name
= XOBFINISH (&obstack
, const char *);
3704 /* Display the command line switches accepted by gcc. */
3708 printf (_("Usage: %s [options] file...\n"), progname
);
3709 fputs (_("Options:\n"), stdout
);
3711 fputs (_(" -pass-exit-codes Exit with highest error code from a phase.\n"), stdout
);
3712 fputs (_(" --help Display this information.\n"), stdout
);
3713 fputs (_(" --target-help Display target specific command line options.\n"), stdout
);
3714 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...].\n"), stdout
);
3715 fputs (_(" Display specific types of command line options.\n"), stdout
);
3717 fputs (_(" (Use '-v --help' to display command line options of sub-processes).\n"), stdout
);
3718 fputs (_(" --version Display compiler version information.\n"), stdout
);
3719 fputs (_(" -dumpspecs Display all of the built in spec strings.\n"), stdout
);
3720 fputs (_(" -dumpversion Display the version of the compiler.\n"), stdout
);
3721 fputs (_(" -dumpmachine Display the compiler's target processor.\n"), stdout
);
3722 fputs (_(" -print-search-dirs Display the directories in the compiler's search path.\n"), stdout
);
3723 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library.\n"), stdout
);
3724 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>.\n"), stdout
);
3725 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>.\n"), stdout
);
3727 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3728 a component in the library path.\n"), stdout
);
3729 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc.\n"), stdout
);
3731 -print-multi-lib Display the mapping between command line options and\n\
3732 multiple library search directories.\n"), stdout
);
3733 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries.\n"), stdout
);
3734 fputs (_(" -print-sysroot Display the target libraries directory.\n"), stdout
);
3735 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers.\n"), stdout
);
3736 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler.\n"), stdout
);
3737 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor.\n"), stdout
);
3738 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker.\n"), stdout
);
3739 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler.\n"), stdout
);
3740 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor.\n"), stdout
);
3741 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker.\n"), stdout
);
3742 fputs (_(" -save-temps Do not delete intermediate files.\n"), stdout
);
3743 fputs (_(" -save-temps=<arg> Do not delete intermediate files.\n"), stdout
);
3745 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3746 prefixes to other gcc components.\n"), stdout
);
3747 fputs (_(" -pipe Use pipes rather than intermediate files.\n"), stdout
);
3748 fputs (_(" -time Time the execution of each subprocess.\n"), stdout
);
3749 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>.\n"), stdout
);
3750 fputs (_(" -std=<standard> Assume that the input sources are for <standard>.\n"), stdout
);
3752 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3753 and libraries.\n"), stdout
);
3754 fputs (_(" -B <directory> Add <directory> to the compiler's search paths.\n"), stdout
);
3755 fputs (_(" -v Display the programs invoked by the compiler.\n"), stdout
);
3756 fputs (_(" -### Like -v but options quoted and commands not executed.\n"), stdout
);
3757 fputs (_(" -E Preprocess only; do not compile, assemble or link.\n"), stdout
);
3758 fputs (_(" -S Compile only; do not assemble or link.\n"), stdout
);
3759 fputs (_(" -c Compile and assemble, but do not link.\n"), stdout
);
3760 fputs (_(" -o <file> Place the output into <file>.\n"), stdout
);
3761 fputs (_(" -pie Create a dynamically linked position independent\n\
3762 executable.\n"), stdout
);
3763 fputs (_(" -shared Create a shared library.\n"), stdout
);
3765 -x <language> Specify the language of the following input files.\n\
3766 Permissible languages include: c c++ assembler none\n\
3767 'none' means revert to the default behavior of\n\
3768 guessing the language based on the file's extension.\n\
3772 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3773 passed on to the various sub-processes invoked by %s. In order to pass\n\
3774 other options on to these processes the -W<letter> options must be used.\n\
3777 /* The rest of the options are displayed by invocations of the various
3782 add_preprocessor_option (const char *option
, int len
)
3784 preprocessor_options
.safe_push (save_string (option
, len
));
3788 add_assembler_option (const char *option
, int len
)
3790 assembler_options
.safe_push (save_string (option
, len
));
3794 add_linker_option (const char *option
, int len
)
3796 linker_options
.safe_push (save_string (option
, len
));
3799 /* Allocate space for an input file in infiles. */
3804 if (n_infiles_alloc
== 0)
3806 n_infiles_alloc
= 16;
3807 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3809 else if (n_infiles_alloc
== n_infiles
)
3811 n_infiles_alloc
*= 2;
3812 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3816 /* Store an input file with the given NAME and LANGUAGE in
3820 add_infile (const char *name
, const char *language
)
3823 infiles
[n_infiles
].name
= name
;
3824 infiles
[n_infiles
++].language
= language
;
3827 /* Allocate space for a switch in switches. */
3832 if (n_switches_alloc
== 0)
3834 n_switches_alloc
= 16;
3835 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3837 else if (n_switches_alloc
== n_switches
)
3839 n_switches_alloc
*= 2;
3840 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3844 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3845 as validated if VALIDATED and KNOWN if it is an internal switch. */
3848 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3849 bool validated
, bool known
)
3852 switches
[n_switches
].part1
= opt
+ 1;
3854 switches
[n_switches
].args
= 0;
3857 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3858 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3859 switches
[n_switches
].args
[n_args
] = NULL
;
3862 switches
[n_switches
].live_cond
= 0;
3863 switches
[n_switches
].validated
= validated
;
3864 switches
[n_switches
].known
= known
;
3865 switches
[n_switches
].ordering
= 0;
3869 /* Set the SOURCE_DATE_EPOCH environment variable to the current time if it is
3873 set_source_date_epoch_envvar ()
3875 /* Array size is 21 = ceil(log_10(2^64)) + 1 to hold string representations
3876 of 64 bit integers. */
3877 char source_date_epoch
[21];
3882 if (tt
< (time_t) 0 || errno
!= 0)
3885 snprintf (source_date_epoch
, 21, "%llu", (unsigned long long) tt
);
3886 /* Using setenv instead of xputenv because we want the variable to remain
3887 after finalizing so that it's still set in the second run when using
3889 setenv ("SOURCE_DATE_EPOCH", source_date_epoch
, 0);
3892 /* Handle an option DECODED that is unknown to the option-processing
3896 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3898 const char *opt
= decoded
->arg
;
3899 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3900 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3902 /* Leave unknown -Wno-* options for the compiler proper, to be
3903 diagnosed only if there are warnings. */
3904 save_switch (decoded
->canonical_option
[0],
3905 decoded
->canonical_option_num_elements
- 1,
3906 &decoded
->canonical_option
[1], false, true);
3909 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3911 /* Give it a chance to define it a spec file. */
3912 save_switch (decoded
->canonical_option
[0],
3913 decoded
->canonical_option_num_elements
- 1,
3914 &decoded
->canonical_option
[1], false, false);
3921 /* Handle an option DECODED that is not marked as CL_DRIVER.
3922 LANG_MASK will always be CL_DRIVER. */
3925 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3926 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3928 /* At this point, non-driver options are accepted (and expected to
3929 be passed down by specs) unless marked to be rejected by the
3930 driver. Options to be rejected by the driver but accepted by the
3931 compilers proper are treated just like completely unknown
3933 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3935 if (option
->cl_reject_driver
)
3936 error ("unrecognized command-line option %qs",
3937 decoded
->orig_option_with_args_text
);
3939 save_switch (decoded
->canonical_option
[0],
3940 decoded
->canonical_option_num_elements
- 1,
3941 &decoded
->canonical_option
[1], false, true);
3944 static const char *spec_lang
= 0;
3945 static int last_language_n_infiles
;
3947 /* Parse -foffload option argument. */
3950 handle_foffload_option (const char *arg
)
3952 const char *c
, *cur
, *n
, *next
, *end
;
3955 /* If option argument starts with '-' then no target is specified and we
3956 do not need to parse it. */
3960 end
= strchr (arg
, '=');
3962 end
= strchr (arg
, '\0');
3967 next
= strchr (cur
, ',');
3970 next
= (next
> end
) ? end
: next
;
3972 target
= XNEWVEC (char, next
- cur
+ 1);
3973 memcpy (target
, cur
, next
- cur
);
3974 target
[next
- cur
] = '\0';
3976 /* If 'disable' is passed to the option, stop parsing the option and clean
3977 the list of offload targets. */
3978 if (strcmp (target
, "disable") == 0)
3980 free (offload_targets
);
3981 offload_targets
= xstrdup ("");
3985 /* Check that GCC is configured to support the offload target. */
3986 c
= OFFLOAD_TARGETS
;
3989 n
= strchr (c
, ',');
3991 n
= strchr (c
, '\0');
3993 if (next
- cur
== n
- c
&& strncmp (target
, c
, n
- c
) == 0)
3996 c
= *n
? n
+ 1 : NULL
;
4000 fatal_error (input_location
,
4001 "GCC is not configured to support %s as offload target",
4004 if (!offload_targets
)
4006 offload_targets
= target
;
4011 /* Check that the target hasn't already presented in the list. */
4012 c
= offload_targets
;
4015 n
= strchr (c
, ':');
4017 n
= strchr (c
, '\0');
4019 if (next
- cur
== n
- c
&& strncmp (c
, target
, n
- c
) == 0)
4026 /* If duplicate is not found, append the target to the list. */
4029 size_t offload_targets_len
= strlen (offload_targets
);
4031 = XRESIZEVEC (char, offload_targets
,
4032 offload_targets_len
+ 1 + next
- cur
+ 1);
4033 offload_targets
[offload_targets_len
++] = ':';
4034 memcpy (offload_targets
+ offload_targets_len
, target
, next
- cur
+ 1);
4039 XDELETEVEC (target
);
4043 /* Handle a driver option; arguments and return value as for
4047 driver_handle_option (struct gcc_options
*opts
,
4048 struct gcc_options
*opts_set
,
4049 const struct cl_decoded_option
*decoded
,
4050 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
4052 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
4053 diagnostic_context
*dc
,
4056 size_t opt_index
= decoded
->opt_index
;
4057 const char *arg
= decoded
->arg
;
4058 const char *compare_debug_replacement_opt
;
4059 int value
= decoded
->value
;
4060 bool validated
= false;
4061 bool do_save
= true;
4063 gcc_assert (opts
== &global_options
);
4064 gcc_assert (opts_set
== &global_options_set
);
4065 gcc_assert (kind
== DK_UNSPECIFIED
);
4066 gcc_assert (loc
== UNKNOWN_LOCATION
);
4067 gcc_assert (dc
== global_dc
);
4073 struct spec_list
*sl
;
4075 for (sl
= specs
; sl
; sl
= sl
->next
)
4076 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
4077 if (link_command_spec
)
4078 printf ("*link_command:\n%s\n\n", link_command_spec
);
4082 case OPT_dumpversion
:
4083 printf ("%s\n", spec_version
);
4086 case OPT_dumpmachine
:
4087 printf ("%s\n", spec_machine
);
4090 case OPT_dumpfullversion
:
4091 printf ("%s\n", BASEVER
);
4097 /* CPP driver cannot obtain switch from cc1_options. */
4099 add_preprocessor_option ("--version", strlen ("--version"));
4100 add_assembler_option ("--version", strlen ("--version"));
4101 add_linker_option ("--version", strlen ("--version"));
4104 case OPT__completion_
:
4106 completion
= decoded
->arg
;
4110 print_help_list
= 1;
4112 /* CPP driver cannot obtain switch from cc1_options. */
4114 add_preprocessor_option ("--help", 6);
4115 add_assembler_option ("--help", 6);
4116 add_linker_option ("--help", 6);
4120 print_subprocess_help
= 2;
4123 case OPT__target_help
:
4124 print_subprocess_help
= 1;
4126 /* CPP driver cannot obtain switch from cc1_options. */
4128 add_preprocessor_option ("--target-help", 13);
4129 add_assembler_option ("--target-help", 13);
4130 add_linker_option ("--target-help", 13);
4133 case OPT__no_sysroot_suffix
:
4134 case OPT_pass_exit_codes
:
4135 case OPT_print_search_dirs
:
4136 case OPT_print_file_name_
:
4137 case OPT_print_prog_name_
:
4138 case OPT_print_multi_lib
:
4139 case OPT_print_multi_directory
:
4140 case OPT_print_sysroot
:
4141 case OPT_print_multi_os_directory
:
4142 case OPT_print_multiarch
:
4143 case OPT_print_sysroot_headers_suffix
:
4146 /* These options set the variables specified in common.opt
4147 automatically, and do not need to be saved for spec
4152 case OPT_print_libgcc_file_name
:
4153 print_file_name
= "libgcc.a";
4157 case OPT_fuse_ld_bfd
:
4161 case OPT_fuse_ld_gold
:
4165 case OPT_fcompare_debug_second
:
4166 compare_debug_second
= 1;
4169 case OPT_fcompare_debug
:
4173 compare_debug_replacement_opt
= "-fcompare-debug=";
4175 goto compare_debug_with_arg
;
4178 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
4180 goto compare_debug_with_arg
;
4187 case OPT_fcompare_debug_
:
4188 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
4189 compare_debug_with_arg
:
4190 gcc_assert (decoded
->canonical_option_num_elements
== 1);
4191 gcc_assert (arg
!= NULL
);
4196 if (compare_debug
< 0)
4197 compare_debug_opt
= NULL
;
4199 compare_debug_opt
= arg
;
4200 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
4201 set_source_date_epoch_envvar ();
4204 case OPT_fdiagnostics_color_
:
4205 diagnostic_color_init (dc
, value
);
4208 case OPT_fdiagnostics_urls_
:
4209 diagnostic_urls_init (dc
, value
);
4212 case OPT_fdiagnostics_format_
:
4213 diagnostic_output_format_init (dc
,
4214 (enum diagnostics_output_format
)value
);
4220 /* Pass the rest of this option to the assembler. */
4222 /* Split the argument at commas. */
4224 for (j
= 0; arg
[j
]; j
++)
4227 add_assembler_option (arg
+ prev
, j
- prev
);
4231 /* Record the part after the last comma. */
4232 add_assembler_option (arg
+ prev
, j
- prev
);
4240 /* Pass the rest of this option to the preprocessor. */
4242 /* Split the argument at commas. */
4244 for (j
= 0; arg
[j
]; j
++)
4247 add_preprocessor_option (arg
+ prev
, j
- prev
);
4251 /* Record the part after the last comma. */
4252 add_preprocessor_option (arg
+ prev
, j
- prev
);
4260 /* Split the argument at commas. */
4262 for (j
= 0; arg
[j
]; j
++)
4265 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
4268 /* Record the part after the last comma. */
4269 add_infile (arg
+ prev
, "*");
4275 add_infile (arg
, "*");
4279 case OPT_Xpreprocessor
:
4280 add_preprocessor_option (arg
, strlen (arg
));
4284 case OPT_Xassembler
:
4285 add_assembler_option (arg
, strlen (arg
));
4290 /* POSIX allows separation of -l and the lib arg; canonicalize
4291 by concatenating -l with its arg */
4292 add_infile (concat ("-l", arg
, NULL
), "*");
4297 /* Similarly, canonicalize -L for linkers that may not accept
4298 separate arguments. */
4299 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
4304 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
4307 case OPT_save_temps
:
4308 if (!save_temps_flag
)
4309 save_temps_flag
= SAVE_TEMPS_DUMP
;
4313 case OPT_save_temps_
:
4314 if (strcmp (arg
, "cwd") == 0)
4315 save_temps_flag
= SAVE_TEMPS_CWD
;
4316 else if (strcmp (arg
, "obj") == 0
4317 || strcmp (arg
, "object") == 0)
4318 save_temps_flag
= SAVE_TEMPS_OBJ
;
4320 fatal_error (input_location
, "%qs is an unknown %<-save-temps%> option",
4321 decoded
->orig_option_with_args_text
);
4322 save_temps_overrides_dumpdir
= true;
4327 dumpdir
= xstrdup (arg
);
4328 save_temps_overrides_dumpdir
= false;
4333 dumpbase
= xstrdup (arg
);
4336 case OPT_dumpbase_ext
:
4337 free (dumpbase_ext
);
4338 dumpbase_ext
= xstrdup (arg
);
4341 case OPT_no_canonical_prefixes
:
4342 /* Already handled as a special case, so ignored here. */
4348 /* These options set the variables specified in common.opt
4349 automatically, but do need to be saved for spec
4355 struct user_specs
*user
= XNEW (struct user_specs
);
4357 user
->next
= (struct user_specs
*) 0;
4358 user
->filename
= arg
;
4359 if (user_specs_tail
)
4360 user_specs_tail
->next
= user
;
4362 user_specs_head
= user
;
4363 user_specs_tail
= user
;
4369 target_system_root
= arg
;
4370 target_system_root_changed
= 1;
4375 if (report_times_to_file
)
4376 fclose (report_times_to_file
);
4377 report_times_to_file
= fopen (arg
, "a");
4383 This is similar to -v except that there is no execution
4384 of the commands and the echoed arguments are quoted. It
4385 is intended for use in shell scripts to capture the
4386 driver-generated command line. */
4387 verbose_only_flag
++;
4394 size_t len
= strlen (arg
);
4396 /* Catch the case where the user has forgotten to append a
4397 directory separator to the path. Note, they may be using
4398 -B to add an executable name prefix, eg "i386-elf-", in
4399 order to distinguish between multiple installations of
4400 GCC in the same directory. Hence we must check to see
4401 if appending a directory separator actually makes a
4402 valid directory name. */
4403 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
4404 && is_directory (arg
, false))
4406 char *tmp
= XNEWVEC (char, len
+ 2);
4408 tmp
[len
] = DIR_SEPARATOR
;
4413 add_prefix (&exec_prefixes
, arg
, NULL
,
4414 PREFIX_PRIORITY_B_OPT
, 0, 0);
4415 add_prefix (&startfile_prefixes
, arg
, NULL
,
4416 PREFIX_PRIORITY_B_OPT
, 0, 0);
4417 add_prefix (&include_prefixes
, arg
, NULL
,
4418 PREFIX_PRIORITY_B_OPT
, 0, 0);
4429 if (!strcmp (spec_lang
, "none"))
4430 /* Suppress the warning if -xnone comes after the last input
4431 file, because alternate command interfaces like g++ might
4432 find it useful to place -xnone after each input file. */
4435 last_language_n_infiles
= n_infiles
;
4441 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4442 arg
= convert_filename (arg
, ! have_c
, 0);
4445 /* On some systems, ld cannot handle "-o" without a space. So
4446 split the option from its argument. */
4447 save_switch ("-o", 1, &arg
, validated
, true);
4450 #ifdef ENABLE_DEFAULT_PIE
4452 /* -pie is turned on by default. */
4455 case OPT_static_libgcc
:
4456 case OPT_shared_libgcc
:
4457 case OPT_static_libgfortran
:
4458 case OPT_static_libstdc__
:
4459 /* These are always valid, since gcc.c itself understands the
4460 first two, gfortranspec.c understands -static-libgfortran and
4461 g++spec.c understands -static-libstdc++ */
4470 handle_foffload_option (arg
);
4474 /* Various driver options need no special processing at this
4475 point, having been handled in a prescan above or being
4476 handled by specs. */
4481 save_switch (decoded
->canonical_option
[0],
4482 decoded
->canonical_option_num_elements
- 1,
4483 &decoded
->canonical_option
[1], validated
, true);
4487 /* Return true if F2 is F1 followed by a single suffix, i.e., by a
4488 period and additional characters other than a period. */
4491 adds_single_suffix_p (const char *f2
, const char *f1
)
4493 size_t len
= strlen (f1
);
4495 return (strncmp (f1
, f2
, len
) == 0
4497 && strchr (f2
+ len
+ 1, '.') == NULL
);
4500 /* Put the driver's standard set of option handlers in *HANDLERS. */
4503 set_option_handlers (struct cl_option_handlers
*handlers
)
4505 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
4506 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
4507 handlers
->num_handlers
= 3;
4508 handlers
->handlers
[0].handler
= driver_handle_option
;
4509 handlers
->handlers
[0].mask
= CL_DRIVER
;
4510 handlers
->handlers
[1].handler
= common_handle_option
;
4511 handlers
->handlers
[1].mask
= CL_COMMON
;
4512 handlers
->handlers
[2].handler
= target_handle_option
;
4513 handlers
->handlers
[2].mask
= CL_TARGET
;
4517 /* Return the index into infiles for the single non-library
4518 non-lto-wpa input file, -1 if there isn't any, or -2 if there is
4521 single_input_file_index ()
4525 for (int i
= 0; i
< n_infiles
; i
++)
4527 if (infiles
[i
].language
4528 && (infiles
[i
].language
[0] == '*'
4530 && strcmp (infiles
[i
].language
, "lto") == 0)))
4542 /* Create the vector `switches' and its contents.
4543 Store its length in `n_switches'. */
4546 process_command (unsigned int decoded_options_count
,
4547 struct cl_decoded_option
*decoded_options
)
4551 char *tooldir_prefix
, *tooldir_prefix2
;
4552 char *(*get_relative_prefix
) (const char *, const char *,
4553 const char *) = NULL
;
4554 struct cl_option_handlers handlers
;
4557 gcc_exec_prefix
= env
.get ("GCC_EXEC_PREFIX");
4561 added_libraries
= 0;
4563 /* Figure compiler version from version string. */
4565 compiler_version
= temp1
= xstrdup (version_string
);
4567 for (; *temp1
; ++temp1
)
4576 /* Handle any -no-canonical-prefixes flag early, to assign the function
4577 that builds relative prefixes. This function creates default search
4578 paths that are needed later in normal option handling. */
4580 for (j
= 1; j
< decoded_options_count
; j
++)
4582 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
4584 get_relative_prefix
= make_relative_prefix_ignore_links
;
4588 if (! get_relative_prefix
)
4589 get_relative_prefix
= make_relative_prefix
;
4591 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
4592 see if we can create it from the pathname specified in
4593 decoded_options[0].arg. */
4595 gcc_libexec_prefix
= standard_libexec_prefix
;
4597 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
4598 if (!gcc_exec_prefix
)
4600 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4601 standard_bindir_prefix
,
4602 standard_exec_prefix
);
4603 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4604 standard_bindir_prefix
,
4605 standard_libexec_prefix
);
4606 if (gcc_exec_prefix
)
4607 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
4611 /* make_relative_prefix requires a program name, but
4612 GCC_EXEC_PREFIX is typically a directory name with a trailing
4613 / (which is ignored by make_relative_prefix), so append a
4615 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
4616 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
4617 standard_exec_prefix
,
4618 standard_libexec_prefix
);
4620 /* The path is unrelocated, so fallback to the original setting. */
4621 if (!gcc_libexec_prefix
)
4622 gcc_libexec_prefix
= standard_libexec_prefix
;
4628 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
4629 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
4630 or an automatically created GCC_EXEC_PREFIX from
4631 decoded_options[0].arg. */
4633 /* Do language-specific adjustment/addition of flags. */
4634 lang_specific_driver (&decoded_options
, &decoded_options_count
,
4637 if (gcc_exec_prefix
)
4639 int len
= strlen (gcc_exec_prefix
);
4641 if (len
> (int) sizeof ("/lib/gcc/") - 1
4642 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
4644 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
4645 if (IS_DIR_SEPARATOR (*temp
)
4646 && filename_ncmp (temp
+ 1, "lib", 3) == 0
4647 && IS_DIR_SEPARATOR (temp
[4])
4648 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
4649 len
-= sizeof ("/lib/gcc/") - 1;
4652 set_std_prefix (gcc_exec_prefix
, len
);
4653 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
4654 PREFIX_PRIORITY_LAST
, 0, 0);
4655 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
4656 PREFIX_PRIORITY_LAST
, 0, 0);
4659 /* COMPILER_PATH and LIBRARY_PATH have values
4660 that are lists of directory names with colons. */
4662 temp
= env
.get ("COMPILER_PATH");
4665 const char *startp
, *endp
;
4666 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4668 startp
= endp
= temp
;
4671 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4673 strncpy (nstore
, startp
, endp
- startp
);
4675 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4676 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4678 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4679 nstore
[endp
- startp
+ 1] = 0;
4682 nstore
[endp
- startp
] = 0;
4683 add_prefix (&exec_prefixes
, nstore
, 0,
4684 PREFIX_PRIORITY_LAST
, 0, 0);
4685 add_prefix (&include_prefixes
, nstore
, 0,
4686 PREFIX_PRIORITY_LAST
, 0, 0);
4689 endp
= startp
= endp
+ 1;
4696 temp
= env
.get (LIBRARY_PATH_ENV
);
4697 if (temp
&& *cross_compile
== '0')
4699 const char *startp
, *endp
;
4700 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4702 startp
= endp
= temp
;
4705 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4707 strncpy (nstore
, startp
, endp
- startp
);
4709 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4710 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4712 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4713 nstore
[endp
- startp
+ 1] = 0;
4716 nstore
[endp
- startp
] = 0;
4717 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4718 PREFIX_PRIORITY_LAST
, 0, 1);
4721 endp
= startp
= endp
+ 1;
4728 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4729 temp
= env
.get ("LPATH");
4730 if (temp
&& *cross_compile
== '0')
4732 const char *startp
, *endp
;
4733 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4735 startp
= endp
= temp
;
4738 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4740 strncpy (nstore
, startp
, endp
- startp
);
4742 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4743 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4745 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4746 nstore
[endp
- startp
+ 1] = 0;
4749 nstore
[endp
- startp
] = 0;
4750 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4751 PREFIX_PRIORITY_LAST
, 0, 1);
4754 endp
= startp
= endp
+ 1;
4761 /* Process the options and store input files and switches in their
4764 last_language_n_infiles
= -1;
4766 set_option_handlers (&handlers
);
4768 for (j
= 1; j
< decoded_options_count
; j
++)
4770 switch (decoded_options
[j
].opt_index
)
4782 for (j
= 1; j
< decoded_options_count
; j
++)
4784 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4786 const char *arg
= decoded_options
[j
].arg
;
4787 const char *p
= strrchr (arg
, '@');
4791 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4792 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4794 /* For LTO static archive support we handle input file
4795 specifications that are composed of a filename and
4796 an offset like FNAME@OFFSET. */
4799 && sscanf (p
, "@%li%n", &offset
, &consumed
) >= 1
4800 && strlen (p
) == (unsigned int)consumed
)
4802 fname
= (char *)xmalloc (p
- arg
+ 1);
4803 memcpy (fname
, arg
, p
- arg
);
4804 fname
[p
- arg
] = '\0';
4805 /* Only accept non-stdin and existing FNAME parts, otherwise
4806 try with the full name. */
4807 if (strcmp (fname
, "-") == 0 || access (fname
, F_OK
) < 0)
4810 fname
= xstrdup (arg
);
4814 fname
= xstrdup (arg
);
4816 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4818 bool resp
= fname
[0] == '@' && access (fname
+ 1, F_OK
) < 0;
4819 error ("%s: %m", fname
+ resp
);
4822 add_infile (arg
, spec_lang
);
4828 read_cmdline_option (&global_options
, &global_options_set
,
4829 decoded_options
+ j
, UNKNOWN_LOCATION
,
4830 CL_DRIVER
, &handlers
, global_dc
);
4833 /* If the user didn't specify any, default to all configured offload
4835 if (ENABLE_OFFLOADING
&& offload_targets
== NULL
)
4836 handle_foffload_option (OFFLOAD_TARGETS
);
4839 && strcmp (output_file
, "-") != 0
4840 && strcmp (output_file
, HOST_BIT_BUCKET
) != 0)
4843 for (i
= 0; i
< n_infiles
; i
++)
4844 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
4845 && canonical_filename_eq (infiles
[i
].name
, output_file
))
4846 fatal_error (input_location
,
4847 "input file %qs is the same as output file",
4851 if (output_file
!= NULL
&& output_file
[0] == '\0')
4852 fatal_error (input_location
, "output filename may not be empty");
4854 /* -dumpdir and -save-temps=* both specify the location of aux/dump
4855 outputs; the one that appears last prevails. When compiling
4856 multiple sources, an explicit dumpbase (minus -ext) may be
4857 combined with an explicit or implicit dumpdir, whereas when
4858 linking, a specified or implied link output name (minus
4859 extension) may be combined with a prevailing -save-temps=* or an
4860 otherwise implied dumpdir, but not override a prevailing
4861 -dumpdir. Primary outputs (e.g., linker output when linking
4862 without -o, or .i, .s or .o outputs when processing multiple
4863 inputs with -E, -S or -c, respectively) are NOT affected by these
4864 -save-temps=/-dump* options, always landing in the current
4865 directory and with the same basename as the input when an output
4866 name is not given, but when they're intermediate outputs, they
4867 are named like other aux outputs, so the options affect their
4870 Here are some examples. There are several more in the
4871 documentation of -o and -dump*, and some quite exhaustive tests
4872 in gcc.misc-tests/outputs.exp.
4874 When compiling any number of sources, no -dump* nor
4875 -save-temps=*, all outputs in cwd without prefix:
4877 # gcc -c b.c -gsplit-dwarf
4878 -> cc1 [-dumpdir ./] -dumpbase b.c -dumpbase-ext .c # b.o b.dwo
4880 # gcc -c b.c d.c -gsplit-dwarf
4881 -> cc1 [-dumpdir ./] -dumpbase b.c -dumpbase-ext .c # b.o b.dwo
4882 && cc1 [-dumpdir ./] -dumpbase d.c -dumpbase-ext .c # d.o d.dwo
4884 When compiling and linking, no -dump* nor -save-temps=*, .o
4885 outputs are temporary, aux outputs land in the dir of the output,
4886 prefixed with the basename of the linker output:
4888 # gcc b.c d.c -o ab -gsplit-dwarf
4889 -> cc1 -dumpdir ab- -dumpbase b.c -dumpbase-ext .c # ab-b.dwo
4890 && cc1 -dumpdir ab- -dumpbase d.c -dumpbase-ext .c # ab-d.dwo
4893 # gcc b.c d.c [-o a.out] -gsplit-dwarf
4894 -> cc1 -dumpdir a- -dumpbase b.c -dumpbase-ext .c # a-b.dwo
4895 && cc1 -dumpdir a- -dumpbase d.c -dumpbase-ext .c # a-d.dwo
4896 && link ... [-o a.out]
4898 When compiling and linking, a prevailing -dumpdir fully overrides
4899 the prefix of aux outputs given by the output name:
4901 # gcc -dumpdir f b.c d.c -gsplit-dwarf [-o [dir/]whatever]
4902 -> cc1 -dumpdir f -dumpbase b.c -dumpbase-ext .c # fb.dwo
4903 && cc1 -dumpdir f -dumpbase d.c -dumpbase-ext .c # fd.dwo
4904 && link ... [-o whatever]
4906 When compiling multiple inputs, an explicit -dumpbase is combined
4907 with -dumpdir, affecting aux outputs, but not the .o outputs:
4909 # gcc -dumpdir f -dumpbase g- b.c d.c -gsplit-dwarf -c
4910 -> cc1 -dumpdir fg- -dumpbase b.c -dumpbase-ext .c # b.o fg-b.dwo
4911 && cc1 -dumpdir fg- -dumpbase d.c -dumpbase-ext .c # d.o fg-d.dwo
4913 When compiling and linking with -save-temps, the .o outputs that
4914 would have been temporary become aux outputs, so they get
4915 affected by -dump* flags:
4917 # gcc -dumpdir f -dumpbase g- -save-temps b.c d.c
4918 -> cc1 -dumpdir fg- -dumpbase b.c -dumpbase-ext .c # fg-b.o
4919 && cc1 -dumpdir fg- -dumpbase d.c -dumpbase-ext .c # fg-d.o
4922 If -save-temps=* prevails over -dumpdir, however, the explicit
4923 -dumpdir is discarded, as if it wasn't there. The basename of
4924 the implicit linker output, a.out or a.exe, becomes a- as the aux
4925 output prefix for all compilations:
4927 # gcc [-dumpdir f] -save-temps=cwd b.c d.c
4928 -> cc1 -dumpdir a- -dumpbase b.c -dumpbase-ext .c # a-b.o
4929 && cc1 -dumpdir a- -dumpbase d.c -dumpbase-ext .c # a-d.o
4932 A single -dumpbase, applying to multiple inputs, overrides the
4933 linker output name, implied or explicit, as the aux output prefix:
4935 # gcc [-dumpdir f] -dumpbase g- -save-temps=cwd b.c d.c
4936 -> cc1 -dumpdir g- -dumpbase b.c -dumpbase-ext .c # g-b.o
4937 && cc1 -dumpdir g- -dumpbase d.c -dumpbase-ext .c # g-d.o
4940 # gcc [-dumpdir f] -dumpbase g- -save-temps=cwd b.c d.c -o dir/h.out
4941 -> cc1 -dumpdir g- -dumpbase b.c -dumpbase-ext .c # g-b.o
4942 && cc1 -dumpdir g- -dumpbase d.c -dumpbase-ext .c # g-d.o
4943 && link -o dir/h.out
4945 Now, if the linker output is NOT overridden as a prefix, but
4946 -save-temps=* overrides implicit or explicit -dumpdir, the
4947 effective dump dir combines the dir selected by the -save-temps=*
4948 option with the basename of the specified or implied link output:
4950 # gcc [-dumpdir f] -save-temps=cwd b.c d.c -o dir/h.out
4951 -> cc1 -dumpdir h- -dumpbase b.c -dumpbase-ext .c # h-b.o
4952 && cc1 -dumpdir h- -dumpbase d.c -dumpbase-ext .c # h-d.o
4953 && link -o dir/h.out
4955 # gcc [-dumpdir f] -save-temps=obj b.c d.c -o dir/h.out
4956 -> cc1 -dumpdir dir/h- -dumpbase b.c -dumpbase-ext .c # dir/h-b.o
4957 && cc1 -dumpdir dir/h- -dumpbase d.c -dumpbase-ext .c # dir/h-d.o
4958 && link -o dir/h.out
4960 But then again, a single -dumpbase applying to multiple inputs
4961 gets used instead of the linker output basename in the combined
4964 # gcc [-dumpdir f] -dumpbase g- -save-temps=obj b.c d.c -o dir/h.out
4965 -> cc1 -dumpdir dir/g- -dumpbase b.c -dumpbase-ext .c # dir/g-b.o
4966 && cc1 -dumpdir dir/g- -dumpbase d.c -dumpbase-ext .c # dir/g-d.o
4967 && link -o dir/h.out
4969 With a single input being compiled, the output basename does NOT
4970 affect the dumpdir prefix.
4972 # gcc -save-temps=obj b.c -gsplit-dwarf -c -o dir/b.o
4973 -> cc1 -dumpdir dir/ -dumpbase b.c -dumpbase-ext .c # dir/b.o dir/b.dwo
4975 but when compiling and linking even a single file, it does:
4977 # gcc -save-temps=obj b.c -o dir/h.out
4978 -> cc1 -dumpdir dir/h- -dumpbase b.c -dumpbase-ext .c # dir/h-b.o
4980 unless an explicit -dumpdir prevails:
4982 # gcc -save-temps[=obj] -dumpdir g- b.c -o dir/h.out
4983 -> cc1 -dumpdir g- -dumpbase b.c -dumpbase-ext .c # g-b.o
4987 bool explicit_dumpdir
= dumpdir
;
4989 if (!save_temps_overrides_dumpdir
&& explicit_dumpdir
)
4994 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4995 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4996 else if (save_temps_flag
!= SAVE_TEMPS_CWD
&& output_file
!= NULL
)
5000 temp
= lbasename (output_file
);
5001 if (temp
!= output_file
)
5002 dumpdir
= xstrndup (output_file
,
5003 strlen (output_file
) - strlen (temp
));
5011 if (save_temps_flag
)
5012 save_temps_flag
= SAVE_TEMPS_DUMP
;
5014 /* If there is any pathname component in an explicit -dumpbase, it
5015 overrides dumpdir entirely, so discard it right away. Although
5016 the presence of an explicit -dumpdir matters for the driver, it
5017 shouldn't matter for other processes, that get all that's needed
5018 from the -dumpdir and -dumpbase always passed to them. */
5019 if (dumpdir
&& dumpbase
&& lbasename (dumpbase
) != dumpbase
)
5025 /* Check that dumpbase_ext matches the end of dumpbase, drop it
5027 if (dumpbase_ext
&& dumpbase
&& *dumpbase
)
5029 int lendb
= strlen (dumpbase
);
5030 int lendbx
= strlen (dumpbase_ext
);
5032 /* -dumpbase-ext must be a suffix proper; discard it if it
5033 matches all of -dumpbase, as that would make for an empty
5036 || strcmp (dumpbase
+ lendb
- lendbx
, dumpbase_ext
) != 0)
5038 free (dumpbase_ext
);
5039 dumpbase_ext
= NULL
;
5043 /* -dumpbase with multiple sources goes into dumpdir. With a single
5044 source, it does only if linking and if dumpdir was not explicitly
5046 if (dumpbase
&& *dumpbase
5047 && (single_input_file_index () == -2
5048 || (!have_c
&& !explicit_dumpdir
)))
5053 /* We checked that they match above. */
5054 dumpbase
[strlen (dumpbase
) - strlen (dumpbase_ext
)] = '\0';
5057 prefix
= concat (dumpdir
, dumpbase
, "-", NULL
);
5059 prefix
= concat (dumpbase
, "-", NULL
);
5063 free (dumpbase_ext
);
5064 dumpbase
= dumpbase_ext
= NULL
;
5066 dumpdir_trailing_dash_added
= true;
5069 /* If dumpbase was not brought into dumpdir but we're linking, bring
5070 output_file into dumpdir unless dumpdir was explicitly specified.
5071 The test for !explicit_dumpdir is further below, because we want
5072 to use the obase computation for a ghost outbase, passed to
5073 GCC_COLLECT_OPTIONS. */
5074 else if (!have_c
&& (!explicit_dumpdir
|| (dumpbase
&& !*dumpbase
)))
5076 /* If we get here, we know dumpbase was not specified, or it was
5077 specified as an empty string. If it was anything else, it
5078 would have combined with dumpdir above, because the condition
5079 for dumpbase to be used when present is broader than the
5080 condition that gets us here. */
5081 gcc_assert (!dumpbase
|| !*dumpbase
);
5084 char *tofree
= NULL
;
5085 if (!output_file
|| not_actual_file_p (output_file
))
5089 obase
= lbasename (output_file
);
5090 size_t blen
= strlen (obase
), xlen
;
5091 /* Drop the suffix if it's dumpbase_ext, if given,
5092 otherwise .exe or the target executable suffix, or if the
5093 output was explicitly named a.out, but not otherwise. */
5095 ? (blen
> (xlen
= strlen (dumpbase_ext
))
5096 && strcmp ((temp
= (obase
+ blen
- xlen
)),
5098 : ((temp
= strrchr (obase
+ 1, '.'))
5099 && (xlen
= strlen (temp
))
5100 && (strcmp (temp
, ".exe") == 0
5101 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
5102 || strcmp (temp
, TARGET_EXECUTABLE_SUFFIX
) == 0
5104 || strcmp (obase
, "a.out") == 0)))
5106 tofree
= xstrndup (obase
, blen
- xlen
);
5111 /* We wish to save this basename to the -dumpdir passed through
5112 GCC_COLLECT_OPTIONS within maybe_run_linker, for e.g. LTO,
5113 but we do NOT wish to add it to e.g. %b, so we keep
5114 outbase_length as zero. */
5115 gcc_assert (!outbase
);
5118 /* If we're building [dir1/]foo[.exe] out of a single input
5119 [dir2/]foo.c that shares the same basename, dump to
5120 [dir2/]foo.c.* rather than duplicating the basename into
5121 [dir2/]foo-foo.c.*. */
5124 || ((idxin
= single_input_file_index ()) >= 0
5125 && adds_single_suffix_p (lbasename (infiles
[idxin
].name
),
5128 if (obase
== tofree
)
5132 outbase
= xstrdup (obase
);
5135 obase
= tofree
= NULL
;
5141 char *p
= concat (dumpdir
, obase
, "-", NULL
);
5146 dumpdir
= concat (obase
, "-", NULL
);
5148 dumpdir_trailing_dash_added
= true;
5151 obase
= tofree
= NULL
;
5154 if (!explicit_dumpdir
|| dumpbase
)
5156 /* Absent -dumpbase and present -dumpbase-ext have been applied
5157 to the linker output name, so compute fresh defaults for each
5159 free (dumpbase_ext
);
5160 dumpbase_ext
= NULL
;
5164 /* Now, if we're compiling, or if we haven't used the dumpbase
5165 above, then outbase (%B) is derived from dumpbase, if given, or
5166 from the output name, given or implied. We can't precompute
5167 implied output names, but that's ok, since they're derived from
5168 input names. Just make sure we skip this if dumpbase is the
5169 empty string: we want to use input names then, so don't set
5171 if ((dumpbase
|| have_c
)
5172 && !(dumpbase
&& !*dumpbase
))
5174 gcc_assert (!outbase
);
5178 gcc_assert (single_input_file_index () != -2);
5179 /* We do not want lbasename here; dumpbase with dirnames
5180 overrides dumpdir entirely, even if dumpdir is
5183 /* We've already checked above that the suffix matches. */
5184 outbase
= xstrndup (dumpbase
,
5185 strlen (dumpbase
) - strlen (dumpbase_ext
));
5187 outbase
= xstrdup (dumpbase
);
5189 else if (output_file
&& !not_actual_file_p (output_file
))
5191 outbase
= xstrdup (lbasename (output_file
));
5192 char *p
= strrchr (outbase
+ 1, '.');
5198 outbase_length
= strlen (outbase
);
5201 /* If there is any pathname component in an explicit -dumpbase, do
5202 not use dumpdir, but retain it to pass it on to the compiler. */
5204 dumpdir_length
= strlen (dumpdir
);
5208 /* Check that dumpbase_ext, if still present, still matches the end
5209 of dumpbase, if present, and drop it otherwise. We only retained
5210 it above when dumpbase was absent to maybe use it to drop the
5211 extension from output_name before combining it with dumpdir. We
5212 won't deal with -dumpbase-ext when -dumpbase is not explicitly
5213 given, even if just to activate backward-compatible dumpbase:
5214 dropping it on the floor is correct, expected and documented
5215 behavior. Attempting to deal with a -dumpbase-ext that might
5216 match the end of some input filename, or of the combination of
5217 the output basename with the suffix of the input filename,
5218 possible with an intermediate .gk extension for -fcompare-debug,
5219 is just calling for trouble. */
5222 if (!dumpbase
|| !*dumpbase
)
5224 free (dumpbase_ext
);
5225 dumpbase_ext
= NULL
;
5228 gcc_assert (strcmp (dumpbase
+ strlen (dumpbase
)
5229 - strlen (dumpbase_ext
), dumpbase_ext
) == 0);
5232 if (save_temps_flag
&& use_pipes
)
5234 /* -save-temps overrides -pipe, so that temp files are produced */
5235 if (save_temps_flag
)
5236 warning (0, "%<-pipe%> ignored because %<-save-temps%> specified");
5242 const char *gcd
= env
.get ("GCC_COMPARE_DEBUG");
5244 if (gcd
&& gcd
[0] == '-')
5247 compare_debug_opt
= gcd
;
5249 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
5252 compare_debug_opt
= "-gtoggle";
5255 else if (compare_debug
< 0)
5258 gcc_assert (!compare_debug_opt
);
5261 /* Set up the search paths. We add directories that we expect to
5262 contain GNU Toolchain components before directories specified by
5263 the machine description so that we will find GNU components (like
5264 the GNU assembler) before those of the host system. */
5266 /* If we don't know where the toolchain has been installed, use the
5267 configured-in locations. */
5268 if (!gcc_exec_prefix
)
5271 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
5272 PREFIX_PRIORITY_LAST
, 1, 0);
5273 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
5274 PREFIX_PRIORITY_LAST
, 2, 0);
5275 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
5276 PREFIX_PRIORITY_LAST
, 2, 0);
5278 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
5279 PREFIX_PRIORITY_LAST
, 1, 0);
5282 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
5283 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
5284 dir_separator_str
, NULL
);
5286 /* Look for tools relative to the location from which the driver is
5287 running, or, if that is not available, the configured prefix. */
5289 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
5290 spec_host_machine
, dir_separator_str
, spec_version
,
5291 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
5292 free (tooldir_prefix2
);
5294 add_prefix (&exec_prefixes
,
5295 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
5296 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
5297 add_prefix (&startfile_prefixes
,
5298 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
5299 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
5300 free (tooldir_prefix
);
5302 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
5303 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
5304 then consider it to relocate with the rest of the GCC installation
5305 if GCC_EXEC_PREFIX is set.
5306 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
5307 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
5309 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
5310 standard_bindir_prefix
,
5311 target_system_root
);
5312 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
5314 target_system_root
= tmp_prefix
;
5315 target_system_root_changed
= 1;
5320 /* More prefixes are enabled in main, after we read the specs file
5321 and determine whether this is cross-compilation or not. */
5323 if (n_infiles
!= 0 && n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
5324 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
5326 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
5327 environment variable. */
5328 if (compare_debug
== 2 || compare_debug
== 3)
5330 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
5331 save_switch (opt
, 0, NULL
, false, true);
5335 /* Ensure we only invoke each subprocess once. */
5337 && (print_subprocess_help
|| print_help_list
|| print_version
))
5339 /* Create a dummy input file, so that we can pass
5340 the help option on to the various sub-processes. */
5341 add_infile ("help-dummy", "c");
5344 /* Decide if undefined variable references are allowed in specs. */
5346 /* -v alone is safe. --version and --help alone or together are safe. Note
5347 that -v would make them unsafe, as they'd then be run for subprocesses as
5348 well, the location of which might depend on variables possibly coming
5349 from self-specs. Note also that the command name is counted in
5350 decoded_options_count. */
5352 unsigned help_version_count
= 0;
5355 help_version_count
++;
5357 if (print_help_list
)
5358 help_version_count
++;
5360 spec_undefvar_allowed
=
5361 ((verbose_flag
&& decoded_options_count
== 2)
5362 || help_version_count
== decoded_options_count
- 1);
5365 switches
[n_switches
].part1
= 0;
5367 infiles
[n_infiles
].name
= 0;
5370 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
5371 and place that in the environment. */
5374 set_collect_gcc_options (void)
5379 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5381 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
5382 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5385 for (i
= 0; (int) i
< n_switches
; i
++)
5387 const char *const *args
;
5390 obstack_grow (&collect_obstack
, " ", 1);
5394 /* Ignore elided switches. */
5395 if ((switches
[i
].live_cond
5396 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
5400 obstack_grow (&collect_obstack
, "'-", 2);
5401 q
= switches
[i
].part1
;
5402 while ((p
= strchr (q
, '\'')))
5404 obstack_grow (&collect_obstack
, q
, p
- q
);
5405 obstack_grow (&collect_obstack
, "'\\''", 4);
5408 obstack_grow (&collect_obstack
, q
, strlen (q
));
5409 obstack_grow (&collect_obstack
, "'", 1);
5411 for (args
= switches
[i
].args
; args
&& *args
; args
++)
5413 obstack_grow (&collect_obstack
, " '", 2);
5415 while ((p
= strchr (q
, '\'')))
5417 obstack_grow (&collect_obstack
, q
, p
- q
);
5418 obstack_grow (&collect_obstack
, "'\\''", 4);
5421 obstack_grow (&collect_obstack
, q
, strlen (q
));
5422 obstack_grow (&collect_obstack
, "'", 1);
5429 obstack_grow (&collect_obstack
, " ", 1);
5432 obstack_grow (&collect_obstack
, "'-dumpdir' '", 12);
5436 while ((p
= strchr (q
, '\'')))
5438 obstack_grow (&collect_obstack
, q
, p
- q
);
5439 obstack_grow (&collect_obstack
, "'\\''", 4);
5442 obstack_grow (&collect_obstack
, q
, strlen (q
));
5444 obstack_grow (&collect_obstack
, "'", 1);
5447 obstack_grow (&collect_obstack
, "\0", 1);
5448 xputenv (XOBFINISH (&collect_obstack
, char *));
5451 /* Process a spec string, accumulating and running commands. */
5453 /* These variables describe the input file name.
5454 input_file_number is the index on outfiles of this file,
5455 so that the output file name can be stored for later use by %o.
5456 input_basename is the start of the part of the input file
5457 sans all directory names, and basename_length is the number
5458 of characters starting there excluding the suffix .c or whatever. */
5460 static const char *gcc_input_filename
;
5461 static int input_file_number
;
5462 size_t input_filename_length
;
5463 static int basename_length
;
5464 static int suffixed_basename_length
;
5465 static const char *input_basename
;
5466 static const char *input_suffix
;
5467 #ifndef HOST_LACKS_INODE_NUMBERS
5468 static struct stat input_stat
;
5470 static int input_stat_set
;
5472 /* The compiler used to process the current input file. */
5473 static struct compiler
*input_file_compiler
;
5475 /* These are variables used within do_spec and do_spec_1. */
5477 /* Nonzero if an arg has been started and not yet terminated
5478 (with space, tab or newline). */
5479 static int arg_going
;
5481 /* Nonzero means %d or %g has been seen; the next arg to be terminated
5482 is a temporary file name. */
5483 static int delete_this_arg
;
5485 /* Nonzero means %w has been seen; the next arg to be terminated
5486 is the output file name of this compilation. */
5487 static int this_is_output_file
;
5489 /* Nonzero means %s has been seen; the next arg to be terminated
5490 is the name of a library file and we should try the standard
5491 search dirs for it. */
5492 static int this_is_library_file
;
5494 /* Nonzero means %T has been seen; the next arg to be terminated
5495 is the name of a linker script and we should try all of the
5496 standard search dirs for it. If it is found insert a --script
5497 command line switch and then substitute the full path in place,
5498 otherwise generate an error message. */
5499 static int this_is_linker_script
;
5501 /* Nonzero means that the input of this command is coming from a pipe. */
5502 static int input_from_pipe
;
5504 /* Nonnull means substitute this for any suffix when outputting a switches
5506 static const char *suffix_subst
;
5508 /* If there is an argument being accumulated, terminate it and store it. */
5511 end_going_arg (void)
5517 obstack_1grow (&obstack
, 0);
5518 string
= XOBFINISH (&obstack
, const char *);
5519 if (this_is_library_file
)
5520 string
= find_file (string
);
5521 if (this_is_linker_script
)
5523 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
5525 if (full_script_path
== NULL
)
5527 error ("unable to locate default linker script %qs in the library search paths", string
);
5528 /* Script was not found on search path. */
5531 store_arg ("--script", false, false);
5532 string
= full_script_path
;
5534 store_arg (string
, delete_this_arg
, this_is_output_file
);
5535 if (this_is_output_file
)
5536 outfiles
[input_file_number
] = string
;
5542 /* Parse the WRAPPER string which is a comma separated list of the command line
5543 and insert them into the beginning of argbuf. */
5546 insert_wrapper (const char *wrapper
)
5550 char *buf
= xstrdup (wrapper
);
5552 unsigned int old_length
= argbuf
.length ();
5560 while ((p
= strchr (p
, ',')) != NULL
);
5562 argbuf
.safe_grow (old_length
+ n
, true);
5563 memmove (argbuf
.address () + n
,
5565 old_length
* sizeof (const_char_p
));
5579 while ((p
= strchr (p
, ',')) != NULL
);
5580 gcc_assert (i
== n
);
5583 /* Process the spec SPEC and run the commands specified therein.
5584 Returns 0 if the spec is successfully processed; -1 if failed. */
5587 do_spec (const char *spec
)
5591 value
= do_spec_2 (spec
, NULL
);
5593 /* Force out any unfinished command.
5594 If -pipe, this forces out the last command if it ended in `|'. */
5597 if (argbuf
.length () > 0
5598 && !strcmp (argbuf
.last (), "|"))
5601 set_collect_gcc_options ();
5603 if (argbuf
.length () > 0)
5610 /* Process the spec SPEC, with SOFT_MATCHED_PART designating the current value
5611 of a matched * pattern which may be re-injected by way of %*. */
5614 do_spec_2 (const char *spec
, const char *soft_matched_part
)
5620 delete_this_arg
= 0;
5621 this_is_output_file
= 0;
5622 this_is_library_file
= 0;
5623 this_is_linker_script
= 0;
5624 input_from_pipe
= 0;
5625 suffix_subst
= NULL
;
5627 result
= do_spec_1 (spec
, 0, soft_matched_part
);
5634 /* Process the given spec string and add any new options to the end
5635 of the switches/n_switches array. */
5638 do_option_spec (const char *name
, const char *spec
)
5640 unsigned int i
, value_count
, value_len
;
5641 const char *p
, *q
, *value
;
5642 char *tmp_spec
, *tmp_spec_p
;
5644 if (configure_default_options
[0].name
== NULL
)
5647 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
5648 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
5650 if (i
== ARRAY_SIZE (configure_default_options
))
5653 value
= configure_default_options
[i
].value
;
5654 value_len
= strlen (value
);
5656 /* Compute the size of the final spec. */
5659 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
5665 /* Replace each %(VALUE) by the specified value. */
5666 tmp_spec
= (char *) alloca (strlen (spec
) + 1
5667 + value_count
* (value_len
- strlen ("%(VALUE)")));
5668 tmp_spec_p
= tmp_spec
;
5670 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
5672 memcpy (tmp_spec_p
, q
, p
- q
);
5673 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
5674 memcpy (tmp_spec_p
, value
, value_len
);
5675 tmp_spec_p
+= value_len
;
5676 q
= p
+ strlen ("%(VALUE)");
5678 strcpy (tmp_spec_p
, q
);
5680 do_self_spec (tmp_spec
);
5683 /* Process the given spec string and add any new options to the end
5684 of the switches/n_switches array. */
5687 do_self_spec (const char *spec
)
5691 do_spec_2 (spec
, NULL
);
5692 do_spec_1 (" ", 0, NULL
);
5694 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
5695 do_self_specs adds the replacements to switches array, so it shouldn't
5696 be processed afterwards. */
5697 for (i
= 0; i
< n_switches
; i
++)
5698 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
5699 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
5701 if (argbuf
.length () > 0)
5703 const char **argbuf_copy
;
5704 struct cl_decoded_option
*decoded_options
;
5705 struct cl_option_handlers handlers
;
5706 unsigned int decoded_options_count
;
5709 /* Create a copy of argbuf with a dummy argv[0] entry for
5710 decode_cmdline_options_to_array. */
5711 argbuf_copy
= XNEWVEC (const char *,
5712 argbuf
.length () + 1);
5713 argbuf_copy
[0] = "";
5714 memcpy (argbuf_copy
+ 1, argbuf
.address (),
5715 argbuf
.length () * sizeof (const char *));
5717 decode_cmdline_options_to_array (argbuf
.length () + 1,
5719 CL_DRIVER
, &decoded_options
,
5720 &decoded_options_count
);
5723 set_option_handlers (&handlers
);
5725 for (j
= 1; j
< decoded_options_count
; j
++)
5727 switch (decoded_options
[j
].opt_index
)
5729 case OPT_SPECIAL_input_file
:
5730 /* Specs should only generate options, not input
5732 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
5733 fatal_error (input_location
,
5734 "switch %qs does not start with %<-%>",
5735 decoded_options
[j
].arg
);
5737 fatal_error (input_location
,
5738 "spec-generated switch is just %<-%>");
5741 case OPT_fcompare_debug_second
:
5742 case OPT_fcompare_debug
:
5743 case OPT_fcompare_debug_
:
5745 /* Avoid duplicate processing of some options from
5746 compare-debug specs; just save them here. */
5747 save_switch (decoded_options
[j
].canonical_option
[0],
5748 (decoded_options
[j
].canonical_option_num_elements
5750 &decoded_options
[j
].canonical_option
[1], false, true);
5754 read_cmdline_option (&global_options
, &global_options_set
,
5755 decoded_options
+ j
, UNKNOWN_LOCATION
,
5756 CL_DRIVER
, &handlers
, global_dc
);
5761 free (decoded_options
);
5764 switches
[n_switches
].part1
= 0;
5768 /* Callback for processing %D and %I specs. */
5770 struct spec_path_info
{
5775 bool separate_options
;
5779 spec_path (char *path
, void *data
)
5781 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
5785 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
5788 if (info
->append_len
!= 0)
5790 len
= strlen (path
);
5791 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
5794 if (!is_directory (path
, true))
5797 do_spec_1 (info
->option
, 1, NULL
);
5798 if (info
->separate_options
)
5799 do_spec_1 (" ", 0, NULL
);
5801 if (info
->append_len
== 0)
5803 len
= strlen (path
);
5804 save
= path
[len
- 1];
5805 if (IS_DIR_SEPARATOR (path
[len
- 1]))
5806 path
[len
- 1] = '\0';
5809 do_spec_1 (path
, 1, NULL
);
5810 do_spec_1 (" ", 0, NULL
);
5812 /* Must not damage the original path. */
5813 if (info
->append_len
== 0)
5814 path
[len
- 1] = save
;
5819 /* True if we should compile INFILE. */
5822 compile_input_file_p (struct infile
*infile
)
5824 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5825 if (infile
->incompiler
== input_file_compiler
)
5830 /* Process each member of VEC as a spec. */
5833 do_specs_vec (vec
<char_p
> vec
)
5838 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
5840 do_spec_1 (opt
, 1, NULL
);
5841 /* Make each accumulated option a separate argument. */
5842 do_spec_1 (" ", 0, NULL
);
5846 /* Add options passed via -Xassembler or -Wa to COLLECT_AS_OPTIONS. */
5849 putenv_COLLECT_AS_OPTIONS (vec
<char_p
> vec
)
5851 if (vec
.is_empty ())
5854 obstack_init (&collect_obstack
);
5855 obstack_grow (&collect_obstack
, "COLLECT_AS_OPTIONS=",
5856 strlen ("COLLECT_AS_OPTIONS="));
5861 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
5863 obstack_1grow (&collect_obstack
, '\'');
5864 obstack_grow (&collect_obstack
, opt
, strlen (opt
));
5865 obstack_1grow (&collect_obstack
, '\'');
5866 if (ix
< vec
.length () - 1)
5867 obstack_1grow(&collect_obstack
, ' ');
5870 obstack_1grow (&collect_obstack
, '\0');
5871 xputenv (XOBFINISH (&collect_obstack
, char *));
5874 /* Process the sub-spec SPEC as a portion of a larger spec.
5875 This is like processing a whole spec except that we do
5876 not initialize at the beginning and we do not supply a
5877 newline by default at the end.
5878 INSWITCH nonzero means don't process %-sequences in SPEC;
5879 in this case, % is treated as an ordinary character.
5880 This is used while substituting switches.
5881 INSWITCH nonzero also causes SPC not to terminate an argument.
5883 Value is zero unless a line was finished
5884 and the command on that line reported an error. */
5887 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5889 const char *p
= spec
;
5894 /* If it's an empty string argument to a switch, keep it as is. */
5895 if (inswitch
&& !*p
)
5899 /* If substituting a switch, treat all chars like letters.
5900 Otherwise, NL, SPC, TAB and % are special. */
5901 switch (inswitch
? 'a' : c
)
5906 if (argbuf
.length () > 0
5907 && !strcmp (argbuf
.last (), "|"))
5909 /* A `|' before the newline means use a pipe here,
5910 but only if -pipe was specified.
5911 Otherwise, execute now and don't pass the `|' as an arg. */
5914 input_from_pipe
= 1;
5921 set_collect_gcc_options ();
5923 if (argbuf
.length () > 0)
5929 /* Reinitialize for a new command, and for a new argument. */
5932 delete_this_arg
= 0;
5933 this_is_output_file
= 0;
5934 this_is_library_file
= 0;
5935 this_is_linker_script
= 0;
5936 input_from_pipe
= 0;
5943 obstack_1grow (&obstack
, c
);
5951 /* Reinitialize for a new argument. */
5952 delete_this_arg
= 0;
5953 this_is_output_file
= 0;
5954 this_is_library_file
= 0;
5955 this_is_linker_script
= 0;
5962 fatal_error (input_location
, "spec %qs invalid", spec
);
5965 /* Don't use %b in the linker command. */
5966 gcc_assert (suffixed_basename_length
);
5967 if (!this_is_output_file
&& dumpdir_length
)
5968 obstack_grow (&obstack
, dumpdir
, dumpdir_length
);
5969 if (this_is_output_file
|| !outbase_length
)
5970 obstack_grow (&obstack
, input_basename
, basename_length
);
5972 obstack_grow (&obstack
, outbase
, outbase_length
);
5973 if (compare_debug
< 0)
5974 obstack_grow (&obstack
, ".gk", 3);
5979 /* Don't use %B in the linker command. */
5980 gcc_assert (suffixed_basename_length
);
5981 if (!this_is_output_file
&& dumpdir_length
)
5982 obstack_grow (&obstack
, dumpdir
, dumpdir_length
);
5983 if (this_is_output_file
|| !outbase_length
)
5984 obstack_grow (&obstack
, input_basename
, basename_length
);
5986 obstack_grow (&obstack
, outbase
, outbase_length
);
5987 if (compare_debug
< 0)
5988 obstack_grow (&obstack
, ".gk", 3);
5989 obstack_grow (&obstack
, input_basename
+ basename_length
,
5990 suffixed_basename_length
- basename_length
);
5996 delete_this_arg
= 2;
5999 /* Dump out the directories specified with LIBRARY_PATH,
6000 followed by the absolute directories
6001 that we search for startfiles. */
6004 struct spec_path_info info
;
6007 info
.append_len
= 0;
6008 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
6009 /* Used on systems which record the specified -L dirs
6010 and use them to search for dynamic linking.
6011 Relative directories always come from -B,
6012 and it is better not to use them for searching
6013 at run time. In particular, stage1 loses. */
6014 info
.omit_relative
= true;
6016 info
.omit_relative
= false;
6018 info
.separate_options
= false;
6020 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
6025 /* %efoo means report an error with `foo' as error message
6026 and don't execute any more commands for this file. */
6030 while (*p
!= 0 && *p
!= '\n')
6032 buf
= (char *) alloca (p
- q
+ 1);
6033 strncpy (buf
, q
, p
- q
);
6035 error ("%s", _(buf
));
6040 /* %nfoo means report a notice with `foo' on stderr. */
6044 while (*p
!= 0 && *p
!= '\n')
6046 buf
= (char *) alloca (p
- q
+ 1);
6047 strncpy (buf
, q
, p
- q
);
6049 inform (UNKNOWN_LOCATION
, "%s", _(buf
));
6059 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
6060 defined, and it is not a directory, and it is
6061 writable, use it. Otherwise, treat this like any
6062 other temporary file. */
6064 if ((!save_temps_flag
)
6065 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
6066 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
6068 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
6069 strlen (HOST_BIT_BUCKET
));
6070 delete_this_arg
= 0;
6075 goto create_temp_file
;
6079 obstack_1grow (&obstack
, '-');
6080 delete_this_arg
= 0;
6083 /* consume suffix */
6084 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
6086 if (p
[0] == '%' && p
[1] == 'O')
6091 goto create_temp_file
;
6095 /* consume suffix */
6096 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
6098 if (p
[0] == '%' && p
[1] == 'O')
6103 goto create_temp_file
;
6109 struct temp_name
*t
;
6111 const char *suffix
= p
;
6112 char *saved_suffix
= NULL
;
6114 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
6116 suffix_length
= p
- suffix
;
6117 if (p
[0] == '%' && p
[1] == 'O')
6120 /* We don't support extra suffix characters after %O. */
6121 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
6122 fatal_error (input_location
,
6123 "spec %qs has invalid %<%%0%c%>", spec
, *p
);
6124 if (suffix_length
== 0)
6125 suffix
= TARGET_OBJECT_SUFFIX
;
6129 = XNEWVEC (char, suffix_length
6130 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
6131 strncpy (saved_suffix
, suffix
, suffix_length
);
6132 strcpy (saved_suffix
+ suffix_length
,
6133 TARGET_OBJECT_SUFFIX
);
6135 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
6138 if (compare_debug
< 0)
6140 suffix
= concat (".gk", suffix
, NULL
);
6144 /* If -save-temps was specified, use that for the
6146 if (save_temps_flag
)
6149 bool adjusted_suffix
= false;
6151 && !outbase_length
&& !basename_length
6152 && !dumpdir_trailing_dash_added
)
6154 adjusted_suffix
= true;
6158 temp_filename_length
6159 = dumpdir_length
+ suffix_length
+ 1;
6161 temp_filename_length
+= outbase_length
;
6163 temp_filename_length
+= basename_length
;
6164 tmp
= (char *) alloca (temp_filename_length
);
6166 memcpy (tmp
, dumpdir
, dumpdir_length
);
6168 memcpy (tmp
+ dumpdir_length
, outbase
,
6170 else if (basename_length
)
6171 memcpy (tmp
+ dumpdir_length
, input_basename
,
6173 memcpy (tmp
+ temp_filename_length
- suffix_length
- 1,
6174 suffix
, suffix_length
);
6175 if (adjusted_suffix
)
6177 adjusted_suffix
= false;
6181 tmp
[temp_filename_length
- 1] = '\0';
6182 temp_filename
= tmp
;
6184 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
6186 #ifndef HOST_LACKS_INODE_NUMBERS
6187 struct stat st_temp
;
6189 /* Note, set_input() resets input_stat_set to 0. */
6190 if (input_stat_set
== 0)
6192 input_stat_set
= stat (gcc_input_filename
,
6194 if (input_stat_set
>= 0)
6198 /* If we have the stat for the gcc_input_filename
6199 and we can do the stat for the temp_filename
6200 then the they could still refer to the same
6201 file if st_dev/st_ino's are the same. */
6202 if (input_stat_set
!= 1
6203 || stat (temp_filename
, &st_temp
) < 0
6204 || input_stat
.st_dev
!= st_temp
.st_dev
6205 || input_stat
.st_ino
!= st_temp
.st_ino
)
6207 /* Just compare canonical pathnames. */
6208 char* input_realname
= lrealpath (gcc_input_filename
);
6209 char* temp_realname
= lrealpath (temp_filename
);
6210 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
6211 free (input_realname
);
6212 free (temp_realname
);
6217 = save_string (temp_filename
,
6218 temp_filename_length
- 1);
6219 obstack_grow (&obstack
, temp_filename
,
6220 temp_filename_length
);
6222 delete_this_arg
= 0;
6228 /* See if we already have an association of %g/%u/%U and
6230 for (t
= temp_names
; t
; t
= t
->next
)
6231 if (t
->length
== suffix_length
6232 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
6233 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
6236 /* Make a new association if needed. %u and %j
6238 if (t
== 0 || c
== 'u' || c
== 'j')
6242 t
= XNEW (struct temp_name
);
6243 t
->next
= temp_names
;
6246 t
->length
= suffix_length
;
6249 t
->suffix
= saved_suffix
;
6250 saved_suffix
= NULL
;
6253 t
->suffix
= save_string (suffix
, suffix_length
);
6254 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
6255 temp_filename
= make_temp_file (t
->suffix
);
6256 temp_filename_length
= strlen (temp_filename
);
6257 t
->filename
= temp_filename
;
6258 t
->filename_length
= temp_filename_length
;
6261 free (saved_suffix
);
6263 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
6264 delete_this_arg
= 1;
6272 /* We are going to expand `%i' into `@FILE', where FILE
6273 is a newly-created temporary filename. The filenames
6274 that would usually be expanded in place of %o will be
6275 written to the temporary file. */
6276 if (at_file_supplied
)
6279 for (i
= 0; (int) i
< n_infiles
; i
++)
6280 if (compile_input_file_p (&infiles
[i
]))
6282 store_arg (infiles
[i
].name
, 0, 0);
6283 infiles
[i
].compiled
= true;
6286 if (at_file_supplied
)
6291 obstack_grow (&obstack
, gcc_input_filename
,
6292 input_filename_length
);
6299 struct spec_path_info info
;
6303 do_spec_1 ("-imultilib", 1, NULL
);
6304 /* Make this a separate argument. */
6305 do_spec_1 (" ", 0, NULL
);
6306 do_spec_1 (multilib_dir
, 1, NULL
);
6307 do_spec_1 (" ", 0, NULL
);
6312 do_spec_1 ("-imultiarch", 1, NULL
);
6313 /* Make this a separate argument. */
6314 do_spec_1 (" ", 0, NULL
);
6315 do_spec_1 (multiarch_dir
, 1, NULL
);
6316 do_spec_1 (" ", 0, NULL
);
6319 if (gcc_exec_prefix
)
6321 do_spec_1 ("-iprefix", 1, NULL
);
6322 /* Make this a separate argument. */
6323 do_spec_1 (" ", 0, NULL
);
6324 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
6325 do_spec_1 (" ", 0, NULL
);
6328 if (target_system_root_changed
||
6329 (target_system_root
&& target_sysroot_hdrs_suffix
))
6331 do_spec_1 ("-isysroot", 1, NULL
);
6332 /* Make this a separate argument. */
6333 do_spec_1 (" ", 0, NULL
);
6334 do_spec_1 (target_system_root
, 1, NULL
);
6335 if (target_sysroot_hdrs_suffix
)
6336 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
6337 do_spec_1 (" ", 0, NULL
);
6340 info
.option
= "-isystem";
6341 info
.append
= "include";
6342 info
.append_len
= strlen (info
.append
);
6343 info
.omit_relative
= false;
6344 info
.separate_options
= true;
6346 for_each_path (&include_prefixes
, false, info
.append_len
,
6349 info
.append
= "include-fixed";
6350 if (*sysroot_hdrs_suffix_spec
)
6351 info
.append
= concat (info
.append
, dir_separator_str
,
6352 multilib_dir
, NULL
);
6353 info
.append_len
= strlen (info
.append
);
6354 for_each_path (&include_prefixes
, false, info
.append_len
,
6360 /* We are going to expand `%o' into `@FILE', where FILE
6361 is a newly-created temporary filename. The filenames
6362 that would usually be expanded in place of %o will be
6363 written to the temporary file. */
6364 if (at_file_supplied
)
6367 for (i
= 0; i
< n_infiles
+ lang_specific_extra_outfiles
; i
++)
6369 store_arg (outfiles
[i
], 0, 0);
6371 if (at_file_supplied
)
6376 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
6381 this_is_library_file
= 1;
6385 this_is_linker_script
= 1;
6389 outfiles
[input_file_number
] = NULL
;
6393 this_is_output_file
= 1;
6398 unsigned int cur_index
= argbuf
.length ();
6399 /* Handle the {...} following the %W. */
6401 fatal_error (input_location
,
6402 "spec %qs has invalid %<%%W%c%>", spec
, *p
);
6403 p
= handle_braces (p
+ 1);
6407 /* If any args were output, mark the last one for deletion
6409 if (argbuf
.length () != cur_index
)
6410 record_temp_file (argbuf
.last (), 0, 1);
6415 /* Handle the {...} following the %@. */
6417 fatal_error (input_location
,
6418 "spec %qs has invalid %<%%@%c%>", spec
, *p
);
6419 if (at_file_supplied
)
6421 p
= handle_braces (p
+ 1);
6422 if (at_file_supplied
)
6428 /* %x{OPTION} records OPTION for %X to output. */
6436 /* Skip past the option value and make a copy. */
6438 fatal_error (input_location
,
6439 "spec %qs has invalid %<%%x%c%>", spec
, *p
);
6442 string
= save_string (p1
+ 1, p
- p1
- 2);
6444 /* See if we already recorded this option. */
6445 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
6446 if (! strcmp (string
, opt
))
6452 /* This option is new; add it. */
6453 add_linker_option (string
, strlen (string
));
6458 /* Dump out the options accumulated previously using %x. */
6460 do_specs_vec (linker_options
);
6463 /* Dump out the options accumulated previously using -Wa,. */
6465 do_specs_vec (assembler_options
);
6468 /* Dump out the options accumulated previously using -Wp,. */
6470 do_specs_vec (preprocessor_options
);
6473 /* Here are digits and numbers that just process
6474 a certain constant string as a spec. */
6477 value
= do_spec_1 (cc1_spec
, 0, NULL
);
6483 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
6489 value
= do_spec_1 (asm_spec
, 0, NULL
);
6495 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
6502 const char *const spec
6503 = (input_file_compiler
->cpp_spec
6504 ? input_file_compiler
->cpp_spec
6506 value
= do_spec_1 (spec
, 0, NULL
);
6513 value
= do_spec_1 (endfile_spec
, 0, NULL
);
6519 value
= do_spec_1 (link_spec
, 0, NULL
);
6525 value
= do_spec_1 (lib_spec
, 0, NULL
);
6531 if (multilib_os_dir
== NULL
)
6532 obstack_1grow (&obstack
, '.');
6534 obstack_grow (&obstack
, multilib_os_dir
,
6535 strlen (multilib_os_dir
));
6539 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
6545 /* We assume there is a directory
6546 separator at the end of this string. */
6547 if (target_system_root
)
6549 obstack_grow (&obstack
, target_system_root
,
6550 strlen (target_system_root
));
6551 if (target_sysroot_suffix
)
6552 obstack_grow (&obstack
, target_sysroot_suffix
,
6553 strlen (target_sysroot_suffix
));
6558 value
= do_spec_1 (startfile_spec
, 0, NULL
);
6563 /* Here we define characters other than letters and digits. */
6566 p
= handle_braces (p
);
6572 p
= handle_spec_function (p
, NULL
, soft_matched_part
);
6578 obstack_1grow (&obstack
, '%');
6585 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
6587 suffix_subst
= save_string (p
- 1, len
+ 1);
6592 /* Henceforth ignore the option(s) matching the pattern
6598 int have_wildcard
= 0;
6603 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
6605 switch_option
= SWITCH_IGNORE
;
6607 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
6610 if (p
[len
-1] == '*')
6613 for (i
= 0; i
< n_switches
; i
++)
6614 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
6615 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
6617 switches
[i
].live_cond
|= switch_option
;
6618 /* User switch be validated from validate_all_switches.
6619 when the definition is seen from the spec file.
6620 If not defined anywhere, will be rejected. */
6621 if (switches
[i
].known
)
6622 switches
[i
].validated
= true;
6630 if (soft_matched_part
)
6632 if (soft_matched_part
[0])
6633 do_spec_1 (soft_matched_part
, 1, NULL
);
6634 /* Only insert a space after the substitution if it is at the
6635 end of the current sequence. So if:
6637 "%{foo=*:bar%*}%{foo=*:one%*two}"
6639 matches -foo=hello then it will produce:
6641 barhello onehellotwo
6643 if (*p
== 0 || *p
== '}')
6644 do_spec_1 (" ", 0, NULL
);
6647 /* Catch the case where a spec string contains something like
6648 '%{foo:%*}'. i.e. there is no * in the pattern on the left
6649 hand side of the :. */
6650 error ("spec failure: %<%%*%> has not been initialized by pattern match");
6653 /* Process a string found as the value of a spec given by name.
6654 This feature allows individual machine descriptions
6655 to add and use their own specs. */
6658 const char *name
= p
;
6659 struct spec_list
*sl
;
6662 /* The string after the S/P is the name of a spec that is to be
6664 while (*p
&& *p
!= ')')
6667 /* See if it's in the list. */
6668 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
6669 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
6671 name
= *(sl
->ptr_spec
);
6673 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
6681 value
= do_spec_1 (name
, 0, NULL
);
6686 /* Discard the closing paren. */
6693 /* End a previous argument, if there is one, then issue an
6701 error ("spec failure: unrecognized spec option %qc", c
);
6707 /* Backslash: treat next character as ordinary. */
6710 /* When adding more cases that previously matched default, make
6711 sure to adjust quote_spec_char_p as well. */
6715 /* Ordinary character: put it into the current argument. */
6716 obstack_1grow (&obstack
, c
);
6720 /* End of string. If we are processing a spec function, we need to
6721 end any pending argument. */
6722 if (processing_spec_function
)
6728 /* Look up a spec function. */
6730 static const struct spec_function
*
6731 lookup_spec_function (const char *name
)
6733 const struct spec_function
*sf
;
6735 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
6736 if (strcmp (sf
->name
, name
) == 0)
6742 /* Evaluate a spec function. */
6745 eval_spec_function (const char *func
, const char *args
,
6746 const char *soft_matched_part
)
6748 const struct spec_function
*sf
;
6749 const char *funcval
;
6751 /* Saved spec processing context. */
6752 vec
<const_char_p
> save_argbuf
;
6755 int save_delete_this_arg
;
6756 int save_this_is_output_file
;
6757 int save_this_is_library_file
;
6758 int save_input_from_pipe
;
6759 int save_this_is_linker_script
;
6760 const char *save_suffix_subst
;
6762 int save_growing_size
;
6763 void *save_growing_value
= NULL
;
6765 sf
= lookup_spec_function (func
);
6767 fatal_error (input_location
, "unknown spec function %qs", func
);
6769 /* Push the spec processing context. */
6770 save_argbuf
= argbuf
;
6772 save_arg_going
= arg_going
;
6773 save_delete_this_arg
= delete_this_arg
;
6774 save_this_is_output_file
= this_is_output_file
;
6775 save_this_is_library_file
= this_is_library_file
;
6776 save_this_is_linker_script
= this_is_linker_script
;
6777 save_input_from_pipe
= input_from_pipe
;
6778 save_suffix_subst
= suffix_subst
;
6780 /* If we have some object growing now, finalize it so the args and function
6781 eval proceed from a cleared context. This is needed to prevent the first
6782 constructed arg from mistakenly including the growing value. We'll push
6783 this value back on the obstack once the function evaluation is done, to
6784 restore a consistent processing context for our caller. This is fine as
6785 the address of growing objects isn't guaranteed to remain stable until
6786 they are finalized, and we expect this situation to be rare enough for
6787 the extra copy not to be an issue. */
6788 save_growing_size
= obstack_object_size (&obstack
);
6789 if (save_growing_size
> 0)
6790 save_growing_value
= obstack_finish (&obstack
);
6792 /* Create a new spec processing context, and build the function
6796 if (do_spec_2 (args
, soft_matched_part
) < 0)
6797 fatal_error (input_location
, "error in arguments to spec function %qs",
6800 /* argbuf_index is an index for the next argument to be inserted, and
6801 so contains the count of the args already inserted. */
6803 funcval
= (*sf
->func
) (argbuf
.length (),
6806 /* Pop the spec processing context. */
6808 argbuf
= save_argbuf
;
6810 arg_going
= save_arg_going
;
6811 delete_this_arg
= save_delete_this_arg
;
6812 this_is_output_file
= save_this_is_output_file
;
6813 this_is_library_file
= save_this_is_library_file
;
6814 this_is_linker_script
= save_this_is_linker_script
;
6815 input_from_pipe
= save_input_from_pipe
;
6816 suffix_subst
= save_suffix_subst
;
6818 if (save_growing_size
> 0)
6819 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
6824 /* Handle a spec function call of the form:
6828 ARGS is processed as a spec in a separate context and split into an
6829 argument vector in the normal fashion. The function returns a string
6830 containing a spec which we then process in the caller's context, or
6831 NULL if no processing is required.
6833 If RETVAL_NONNULL is not NULL, then store a bool whether function
6836 SOFT_MATCHED_PART holds the current value of a matched * pattern, which
6837 may be re-expanded with a %* as part of the function arguments. */
6840 handle_spec_function (const char *p
, bool *retval_nonnull
,
6841 const char *soft_matched_part
)
6844 const char *endp
, *funcval
;
6847 processing_spec_function
++;
6849 /* Get the function name. */
6850 for (endp
= p
; *endp
!= '\0'; endp
++)
6852 if (*endp
== '(') /* ) */
6854 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6855 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6856 fatal_error (input_location
, "malformed spec function name");
6858 if (*endp
!= '(') /* ) */
6859 fatal_error (input_location
, "no arguments for spec function");
6860 func
= save_string (p
, endp
- p
);
6863 /* Get the arguments. */
6864 for (count
= 0; *endp
!= '\0'; endp
++)
6873 else if (*endp
== '(') /* ) */
6878 fatal_error (input_location
, "malformed spec function arguments");
6879 args
= save_string (p
, endp
- p
);
6882 /* p now points to just past the end of the spec function expression. */
6884 funcval
= eval_spec_function (func
, args
, soft_matched_part
);
6885 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6888 *retval_nonnull
= funcval
!= NULL
;
6893 processing_spec_function
--;
6898 /* Inline subroutine of handle_braces. Returns true if the current
6899 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6901 input_suffix_matches (const char *atom
, const char *end_atom
)
6903 return (input_suffix
6904 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6905 && input_suffix
[end_atom
- atom
] == '\0');
6908 /* Subroutine of handle_braces. Returns true if the current
6909 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6911 input_spec_matches (const char *atom
, const char *end_atom
)
6913 return (input_file_compiler
6914 && input_file_compiler
->suffix
6915 && input_file_compiler
->suffix
[0] != '\0'
6916 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6918 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6921 /* Subroutine of handle_braces. Returns true if a switch
6922 matching the atom bracketed by ATOM and END_ATOM appeared on the
6925 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6928 int len
= end_atom
- atom
;
6929 int plen
= starred
? len
: -1;
6931 for (i
= 0; i
< n_switches
; i
++)
6932 if (!strncmp (switches
[i
].part1
, atom
, len
)
6933 && (starred
|| switches
[i
].part1
[len
] == '\0')
6934 && check_live_switch (i
, plen
))
6937 /* Check if a switch with separated form matching the atom.
6938 We check -D and -U switches. */
6939 else if (switches
[i
].args
!= 0)
6941 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
6942 && *switches
[i
].part1
== atom
[0])
6944 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
6945 && (starred
|| (switches
[i
].part1
[1] == '\0'
6946 && switches
[i
].args
[0][len
- 1] == '\0'))
6947 && check_live_switch (i
, (starred
? 1 : -1)))
6955 /* Inline subroutine of handle_braces. Mark all of the switches which
6956 match ATOM (extends to END_ATOM; STARRED indicates whether there
6957 was a star after the atom) for later processing. */
6959 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6962 int len
= end_atom
- atom
;
6963 int plen
= starred
? len
: -1;
6965 for (i
= 0; i
< n_switches
; i
++)
6966 if (!strncmp (switches
[i
].part1
, atom
, len
)
6967 && (starred
|| switches
[i
].part1
[len
] == '\0')
6968 && check_live_switch (i
, plen
))
6969 switches
[i
].ordering
= 1;
6972 /* Inline subroutine of handle_braces. Process all the currently
6973 marked switches through give_switch, and clear the marks. */
6975 process_marked_switches (void)
6979 for (i
= 0; i
< n_switches
; i
++)
6980 if (switches
[i
].ordering
== 1)
6982 switches
[i
].ordering
= 0;
6987 /* Handle a %{ ... } construct. P points just inside the leading {.
6988 Returns a pointer one past the end of the brace block, or 0
6989 if we call do_spec_1 and that returns -1. */
6992 handle_braces (const char *p
)
6994 const char *atom
, *end_atom
;
6995 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6996 char *esc_buf
= NULL
, *d_esc_buf
= NULL
;
6998 const char *orig
= p
;
7006 bool a_must_be_last
= false;
7007 bool ordered_set
= false;
7008 bool disjunct_set
= false;
7009 bool disj_matched
= false;
7010 bool disj_starred
= true;
7011 bool n_way_choice
= false;
7012 bool n_way_matched
= false;
7014 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7021 /* Scan one "atom" (S in the description above of %{}, possibly
7022 with '!', '.', '@', ',', or '*' modifiers). */
7024 a_is_suffix
= false;
7025 a_is_starred
= false;
7026 a_is_negated
= false;
7027 a_is_spectype
= false;
7031 p
++, a_is_negated
= true;
7034 if (*p
== '%' && p
[1] == ':')
7038 p
= handle_spec_function (p
+ 2, &a_matched
, NULL
);
7043 p
++, a_is_suffix
= true;
7045 p
++, a_is_spectype
= true;
7049 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7050 || *p
== ',' || *p
== '.' || *p
== '@' || *p
== '\\')
7056 fatal_error (input_location
,
7057 "braced spec %qs ends in escape", orig
);
7069 if (esc_buf
&& esc_buf
!= d_esc_buf
)
7072 ep
= esc_buf
= (char *) xmalloc (end_atom
- atom
- esc
+ 1);
7073 for (ap
= atom
; ap
!= end_atom
; ap
++, ep
++)
7085 p
++, a_is_starred
= 1;
7092 /* Substitute the switch(es) indicated by the current atom. */
7094 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
7095 || a_is_spectype
|| atom
== end_atom
)
7098 mark_matching_switches (atom
, end_atom
, a_is_starred
);
7101 process_marked_switches ();
7105 /* Substitute some text if the current atom appears as a switch
7107 disjunct_set
= true;
7111 if (atom
&& atom
== end_atom
)
7113 if (!n_way_choice
|| disj_matched
|| *p
== '|'
7114 || a_is_negated
|| a_is_suffix
|| a_is_spectype
7118 /* An empty term may appear as the last choice of an
7119 N-way choice set; it means "otherwise". */
7120 a_must_be_last
= true;
7121 disj_matched
= !n_way_matched
;
7122 disj_starred
= false;
7126 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
7130 disj_starred
= false;
7132 /* Don't bother testing this atom if we already have a
7134 if (!disj_matched
&& !n_way_matched
)
7137 /* a_matched is already set by handle_spec_function. */;
7138 else if (a_is_suffix
)
7139 a_matched
= input_suffix_matches (atom
, end_atom
);
7140 else if (a_is_spectype
)
7141 a_matched
= input_spec_matches (atom
, end_atom
);
7143 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
7145 if (a_matched
!= a_is_negated
)
7147 disj_matched
= true;
7149 d_end_atom
= end_atom
;
7150 d_esc_buf
= esc_buf
;
7157 /* Found the body, that is, the text to substitute if the
7158 current disjunction matches. */
7159 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
7160 disj_matched
&& !n_way_matched
);
7164 /* If we have an N-way choice, reset state for the next
7168 n_way_choice
= true;
7169 n_way_matched
|= disj_matched
;
7170 disj_matched
= false;
7171 disj_starred
= true;
7172 d_atom
= d_end_atom
= NULL
;
7181 while (*p
++ != '}');
7184 if (d_esc_buf
&& d_esc_buf
!= esc_buf
)
7192 fatal_error (input_location
, "braced spec %qs is invalid at %qc", orig
, *p
);
7197 /* Subroutine of handle_braces. Scan and process a brace substitution body
7198 (X in the description of %{} syntax). P points one past the colon;
7199 ATOM and END_ATOM bracket the first atom which was found to be true
7200 (present) in the current disjunction; STARRED indicates whether all
7201 the atoms in the current disjunction were starred (for syntax validation);
7202 MATCHED indicates whether the disjunction matched or not, and therefore
7203 whether or not the body is to be processed through do_spec_1 or just
7204 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
7208 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
7209 int starred
, int matched
)
7211 const char *body
, *end_body
;
7212 unsigned int nesting_level
;
7213 bool have_subst
= false;
7215 /* Locate the closing } or ;, honoring nested braces.
7216 Trim trailing whitespace. */
7225 if (!--nesting_level
)
7228 else if (*p
== ';' && nesting_level
== 1)
7230 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
7232 else if (*p
== '\0')
7238 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
7241 if (have_subst
&& !starred
)
7246 /* Copy the substitution body to permanent storage and execute it.
7247 If have_subst is false, this is a simple matter of running the
7248 body through do_spec_1... */
7249 char *string
= save_string (body
, end_body
- body
);
7252 if (do_spec_1 (string
, 0, NULL
) < 0)
7260 /* ... but if have_subst is true, we have to process the
7261 body once for each matching switch, with %* set to the
7262 variant part of the switch. */
7263 unsigned int hard_match_len
= end_atom
- atom
;
7266 for (i
= 0; i
< n_switches
; i
++)
7267 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
7268 && check_live_switch (i
, hard_match_len
))
7270 if (do_spec_1 (string
, 0,
7271 &switches
[i
].part1
[hard_match_len
]) < 0)
7276 /* Pass any arguments this switch has. */
7278 suffix_subst
= NULL
;
7287 fatal_error (input_location
, "braced spec body %qs is invalid", body
);
7290 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
7291 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
7292 spec, or -1 if either exact match or %* is used.
7294 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
7295 whose value does not begin with "no-" is obsoleted by the same value
7296 with the "no-", similarly for a switch with the "no-" prefix. */
7299 check_live_switch (int switchnum
, int prefix_length
)
7301 const char *name
= switches
[switchnum
].part1
;
7304 /* If we already processed this switch and determined if it was
7305 live or not, return our past determination. */
7306 if (switches
[switchnum
].live_cond
!= 0)
7307 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
7308 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
7309 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
7312 /* In the common case of {<at-most-one-letter>*}, a negating
7313 switch would always match, so ignore that case. We will just
7314 send the conflicting switches to the compiler phase. */
7315 if (prefix_length
>= 0 && prefix_length
<= 1)
7318 /* Now search for duplicate in a manner that depends on the name. */
7322 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
7323 if (switches
[i
].part1
[0] == 'O')
7325 switches
[switchnum
].validated
= true;
7326 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
7331 case 'W': case 'f': case 'm': case 'g':
7332 if (! strncmp (name
+ 1, "no-", 3))
7334 /* We have Xno-YYY, search for XYYY. */
7335 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
7336 if (switches
[i
].part1
[0] == name
[0]
7337 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
7339 /* --specs are validated with the validate_switches mechanism. */
7340 if (switches
[switchnum
].known
)
7341 switches
[switchnum
].validated
= true;
7342 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
7348 /* We have XYYY, search for Xno-YYY. */
7349 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
7350 if (switches
[i
].part1
[0] == name
[0]
7351 && switches
[i
].part1
[1] == 'n'
7352 && switches
[i
].part1
[2] == 'o'
7353 && switches
[i
].part1
[3] == '-'
7354 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
7356 /* --specs are validated with the validate_switches mechanism. */
7357 if (switches
[switchnum
].known
)
7358 switches
[switchnum
].validated
= true;
7359 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
7366 /* Otherwise the switch is live. */
7367 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
7371 /* Pass a switch to the current accumulating command
7372 in the same form that we received it.
7373 SWITCHNUM identifies the switch; it is an index into
7374 the vector of switches gcc received, which is `switches'.
7375 This cannot fail since it never finishes a command line.
7377 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
7380 give_switch (int switchnum
, int omit_first_word
)
7382 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
7385 if (!omit_first_word
)
7387 do_spec_1 ("-", 0, NULL
);
7388 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
7391 if (switches
[switchnum
].args
!= 0)
7394 for (p
= switches
[switchnum
].args
; *p
; p
++)
7396 const char *arg
= *p
;
7398 do_spec_1 (" ", 0, NULL
);
7401 unsigned length
= strlen (arg
);
7404 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
7405 if (arg
[length
] == '.')
7407 (CONST_CAST (char *, arg
))[length
] = 0;
7411 do_spec_1 (arg
, 1, NULL
);
7413 (CONST_CAST (char *, arg
))[length
] = '.';
7414 do_spec_1 (suffix_subst
, 1, NULL
);
7417 do_spec_1 (arg
, 1, NULL
);
7421 do_spec_1 (" ", 0, NULL
);
7422 switches
[switchnum
].validated
= true;
7425 /* Print GCC configuration (e.g. version, thread model, target,
7426 configuration_arguments) to a given FILE. */
7429 print_configuration (FILE *file
)
7434 fnotice (file
, "Target: %s\n", spec_machine
);
7435 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
7437 #ifdef THREAD_MODEL_SPEC
7438 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7439 but there's no point in doing all this processing just to get
7440 thread_model back. */
7441 obstack_init (&obstack
);
7442 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
7443 obstack_1grow (&obstack
, '\0');
7444 thrmod
= XOBFINISH (&obstack
, const char *);
7446 thrmod
= thread_model
;
7449 fnotice (file
, "Thread model: %s\n", thrmod
);
7450 fnotice (file
, "Supported LTO compression algorithms: zlib");
7452 fnotice (file
, " zstd");
7454 fnotice (file
, "\n");
7456 /* compiler_version is truncated at the first space when initialized
7457 from version string, so truncate version_string at the first space
7458 before comparing. */
7459 for (n
= 0; version_string
[n
]; n
++)
7460 if (version_string
[n
] == ' ')
7463 if (! strncmp (version_string
, compiler_version
, n
)
7464 && compiler_version
[n
] == 0)
7465 fnotice (file
, "gcc version %s %s\n", version_string
,
7468 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n",
7469 version_string
, pkgversion_string
, compiler_version
);
7473 #define RETRY_ICE_ATTEMPTS 3
7475 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
7478 files_equal_p (char *file1
, char *file2
)
7480 struct stat st1
, st2
;
7483 const int bufsize
= 8192;
7484 char *buf
= XNEWVEC (char, bufsize
);
7486 fd1
= open (file1
, O_RDONLY
);
7487 fd2
= open (file2
, O_RDONLY
);
7489 if (fd1
< 0 || fd2
< 0)
7492 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
7495 if (st1
.st_size
!= st2
.st_size
)
7498 for (n
= st1
.st_size
; n
; n
-= len
)
7501 if ((int) len
> bufsize
/ 2)
7504 if (read (fd1
, buf
, len
) != (int) len
7505 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
7510 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
7527 /* Check that compiler's output doesn't differ across runs.
7528 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
7529 stdout and stderr for each compiler run. Return true if all of
7530 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
7533 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
7536 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
7538 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
7539 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
7541 fnotice (stderr
, "The bug is not reproducible, so it is"
7542 " likely a hardware or OS problem.\n");
7546 return i
== RETRY_ICE_ATTEMPTS
- 2;
7549 enum attempt_status
{
7550 ATTEMPT_STATUS_FAIL_TO_RUN
,
7551 ATTEMPT_STATUS_SUCCESS
,
7556 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
7557 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
7558 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
7559 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
7560 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
7561 ATTEMPT_STATUS_SUCCESS otherwise. */
7563 static enum attempt_status
7564 run_attempt (const char **new_argv
, const char *out_temp
,
7565 const char *err_temp
, int emit_system_info
, int append
)
7568 if (emit_system_info
)
7570 FILE *file_out
= fopen (err_temp
, "a");
7571 print_configuration (file_out
);
7572 fputs ("\n", file_out
);
7578 struct pex_obj
*pex
;
7580 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
7581 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
7584 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
7586 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
7588 fatal_error (input_location
, "%<pex_init%> failed: %m");
7590 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
7591 CONST_CAST2 (char *const *, const char **, &new_argv
[1]),
7592 out_temp
, err_temp
, &err
);
7596 fatal_error (input_location
,
7597 err
? G_ ("cannot execute %qs: %s: %m")
7598 : G_ ("cannot execute %qs: %s"),
7599 new_argv
[0], errmsg
);
7602 if (!pex_get_status (pex
, 1, &exit_status
))
7605 switch (WEXITSTATUS (exit_status
))
7608 status
= ATTEMPT_STATUS_ICE
;
7611 case SUCCESS_EXIT_CODE
:
7612 status
= ATTEMPT_STATUS_SUCCESS
;
7624 /* This routine reads lines from IN file, adds C++ style comments
7625 at the begining of each line and writes result into OUT. */
7628 insert_comments (const char *file_in
, const char *file_out
)
7630 FILE *in
= fopen (file_in
, "rb");
7631 FILE *out
= fopen (file_out
, "wb");
7634 bool add_comment
= true;
7635 while (fgets (line
, sizeof (line
), in
))
7640 add_comment
= strchr (line
, '\n') != NULL
;
7647 /* This routine adds preprocessed source code into the given ERR_FILE.
7648 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
7649 add information in report file. RUN_ATTEMPT should return
7650 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
7653 do_report_bug (const char **new_argv
, const int nargs
,
7654 char **out_file
, char **err_file
)
7657 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
7660 write (fd
, "\n//", 3);
7661 for (i
= 0; i
< nargs
; i
++)
7664 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
7666 write (fd
, "\n\n", 2);
7668 new_argv
[nargs
] = "-E";
7669 new_argv
[nargs
+ 1] = NULL
;
7671 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
7673 if (status
== ATTEMPT_STATUS_SUCCESS
)
7675 fnotice (stderr
, "Preprocessed source stored into %s file,"
7676 " please attach this to your bugreport.\n", *out_file
);
7677 /* Make sure it is not deleted. */
7683 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
7684 containing GCC configuration, backtrace, compiler's command line options
7685 and preprocessed source code. */
7688 try_generate_repro (const char **argv
)
7690 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
7691 const char **new_argv
;
7692 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
7693 char **temp_stdout_files
= &temp_files
[0];
7694 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
7696 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
7699 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
7700 /* Only retry compiler ICEs, not preprocessor ones. */
7701 if (! strcmp (argv
[nargs
], "-E"))
7703 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
7710 /* If the compiler is going to output any time information,
7711 it might varry between invocations. */
7712 else if (! strcmp (argv
[nargs
], "-quiet"))
7714 else if (! strcmp (argv
[nargs
], "-ftime-report"))
7717 if (out_arg
== -1 || !quiet
)
7720 memset (temp_files
, '\0', sizeof (temp_files
));
7721 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
7722 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
7723 new_argv
[nargs
++] = "-frandom-seed=0";
7724 new_argv
[nargs
++] = "-fdump-noaddr";
7725 new_argv
[nargs
] = NULL
;
7726 if (new_argv
[out_arg
][2] == '\0')
7727 new_argv
[out_arg
+ 1] = "-";
7729 new_argv
[out_arg
] = "-o-";
7732 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
7734 int emit_system_info
= 0;
7736 temp_stdout_files
[attempt
] = make_temp_file (".out");
7737 temp_stderr_files
[attempt
] = make_temp_file (".err");
7739 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
7742 emit_system_info
= 1;
7745 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
7746 temp_stderr_files
[attempt
], emit_system_info
,
7749 if (status
!= ATTEMPT_STATUS_ICE
)
7751 fnotice (stderr
, "The bug is not reproducible, so it is"
7752 " likely a hardware or OS problem.\n");
7757 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
7761 /* Insert commented out backtrace into report file. */
7762 char **stderr_commented
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
7763 insert_comments (temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
7766 /* In final attempt we append compiler options and preprocesssed code to last
7767 generated .out file with configuration and backtrace. */
7768 char **err
= &temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1];
7769 do_report_bug (new_argv
, nargs
, stderr_commented
, err
);
7773 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
7776 unlink (temp_stdout_files
[i
]);
7777 free (temp_stdout_files
[i
]);
7781 /* Search for a file named NAME trying various prefixes including the
7782 user's -B prefix and some standard ones.
7783 Return the absolute file name found. If nothing is found, return NAME. */
7786 find_file (const char *name
)
7788 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
7789 return newname
? newname
: name
;
7792 /* Determine whether a directory exists. If LINKER, return 0 for
7793 certain fixed names not needed by the linker. */
7796 is_directory (const char *path1
, bool linker
)
7803 /* Ensure the string ends with "/.". The resulting path will be a
7804 directory even if the given path is a symbolic link. */
7805 len1
= strlen (path1
);
7806 path
= (char *) alloca (3 + len1
);
7807 memcpy (path
, path1
, len1
);
7809 if (!IS_DIR_SEPARATOR (cp
[-1]))
7810 *cp
++ = DIR_SEPARATOR
;
7814 /* Exclude directories that the linker is known to search. */
7816 && IS_DIR_SEPARATOR (path
[0])
7818 && filename_ncmp (path
+ 1, "lib", 3) == 0)
7820 && filename_ncmp (path
+ 1, "usr", 3) == 0
7821 && IS_DIR_SEPARATOR (path
[4])
7822 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
7825 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
7828 /* Set up the various global variables to indicate that we're processing
7829 the input file named FILENAME. */
7832 set_input (const char *filename
)
7836 gcc_input_filename
= filename
;
7837 input_filename_length
= strlen (gcc_input_filename
);
7838 input_basename
= lbasename (gcc_input_filename
);
7840 /* Find a suffix starting with the last period,
7841 and set basename_length to exclude that suffix. */
7842 basename_length
= strlen (input_basename
);
7843 suffixed_basename_length
= basename_length
;
7844 p
= input_basename
+ basename_length
;
7845 while (p
!= input_basename
&& *p
!= '.')
7847 if (*p
== '.' && p
!= input_basename
)
7849 basename_length
= p
- input_basename
;
7850 input_suffix
= p
+ 1;
7855 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
7856 we will need to do a stat on the gcc_input_filename. The
7857 INPUT_STAT_SET signals that the stat is needed. */
7861 /* On fatal signals, delete all the temporary files. */
7864 fatal_signal (int signum
)
7866 signal (signum
, SIG_DFL
);
7867 delete_failure_queue ();
7868 delete_temp_files ();
7869 /* Get the same signal again, this time not handled,
7870 so its normal effect occurs. */
7871 kill (getpid (), signum
);
7874 /* Compare the contents of the two files named CMPFILE[0] and
7875 CMPFILE[1]. Return zero if they're identical, nonzero
7879 compare_files (char *cmpfile
[])
7882 FILE *temp
[2] = { NULL
, NULL
};
7888 void *map
[2] = { NULL
, NULL
};
7890 for (i
= 0; i
< 2; i
++)
7894 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
7896 error ("%s: could not determine length of compare-debug file %s",
7897 gcc_input_filename
, cmpfile
[i
]);
7902 length
[i
] = st
.st_size
;
7905 if (!ret
&& length
[0] != length
[1])
7907 error ("%s: %<-fcompare-debug%> failure (length)", gcc_input_filename
);
7912 for (i
= 0; i
< 2; i
++)
7914 int fd
= open (cmpfile
[i
], O_RDONLY
);
7917 error ("%s: could not open compare-debug file %s",
7918 gcc_input_filename
, cmpfile
[i
]);
7923 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
7926 if (map
[i
] == (void *) MAP_FAILED
)
7935 if (memcmp (map
[0], map
[1], length
[0]) != 0)
7937 error ("%s: %<-fcompare-debug%> failure", gcc_input_filename
);
7942 for (i
= 0; i
< 2; i
++)
7944 munmap ((caddr_t
) map
[i
], length
[i
]);
7953 for (i
= 0; i
< 2; i
++)
7955 temp
[i
] = fopen (cmpfile
[i
], "r");
7958 error ("%s: could not open compare-debug file %s",
7959 gcc_input_filename
, cmpfile
[i
]);
7965 if (!ret
&& temp
[0] && temp
[1])
7969 c0
= fgetc (temp
[0]);
7970 c1
= fgetc (temp
[1]);
7974 error ("%s: %<-fcompare-debug%> failure",
7975 gcc_input_filename
);
7984 for (i
= 1; i
>= 0; i
--)
7993 driver::driver (bool can_finalize
, bool debug
) :
7994 explicit_link_files (NULL
),
7995 decoded_options (NULL
)
7997 env
.init (can_finalize
, debug
);
8002 XDELETEVEC (explicit_link_files
);
8003 XDELETEVEC (decoded_options
);
8006 /* driver::main is implemented as a series of driver:: method calls. */
8009 driver::main (int argc
, char **argv
)
8013 set_progname (argv
[0]);
8014 expand_at_files (&argc
, &argv
);
8015 decode_argv (argc
, const_cast <const char **> (argv
));
8016 global_initializations ();
8017 build_multilib_strings ();
8019 putenv_COLLECT_AS_OPTIONS (assembler_options
);
8020 putenv_COLLECT_GCC (argv
[0]);
8021 maybe_putenv_COLLECT_LTO_WRAPPER ();
8022 maybe_putenv_OFFLOAD_TARGETS ();
8023 handle_unrecognized_options ();
8027 m_option_proposer
.suggest_completion (completion
);
8031 if (!maybe_print_and_exit ())
8034 early_exit
= prepare_infiles ();
8036 return get_exit_code ();
8038 do_spec_on_infiles ();
8039 maybe_run_linker (argv
[0]);
8041 return get_exit_code ();
8044 /* Locate the final component of argv[0] after any leading path, and set
8045 the program name accordingly. */
8048 driver::set_progname (const char *argv0
) const
8050 const char *p
= argv0
+ strlen (argv0
);
8051 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
8055 xmalloc_set_program_name (progname
);
8058 /* Expand any @ files within the command-line args,
8059 setting at_file_supplied if any were expanded. */
8062 driver::expand_at_files (int *argc
, char ***argv
) const
8064 char **old_argv
= *argv
;
8066 expandargv (argc
, argv
);
8068 /* Determine if any expansions were made. */
8069 if (*argv
!= old_argv
)
8070 at_file_supplied
= true;
8073 /* Decode the command-line arguments from argc/argv into the
8074 decoded_options array. */
8077 driver::decode_argv (int argc
, const char **argv
)
8079 init_opts_obstack ();
8080 init_options_struct (&global_options
, &global_options_set
);
8082 decode_cmdline_options_to_array (argc
, argv
,
8084 &decoded_options
, &decoded_options_count
);
8087 /* Perform various initializations and setup. */
8090 driver::global_initializations ()
8092 /* Unlock the stdio streams. */
8093 unlock_std_streams ();
8095 gcc_init_libintl ();
8097 diagnostic_initialize (global_dc
, 0);
8098 diagnostic_color_init (global_dc
);
8099 diagnostic_urls_init (global_dc
);
8101 #ifdef GCC_DRIVER_HOST_INITIALIZATION
8102 /* Perform host dependent initialization when needed. */
8103 GCC_DRIVER_HOST_INITIALIZATION
;
8106 if (atexit (delete_temp_files
) != 0)
8107 fatal_error (input_location
, "atexit failed");
8109 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
8110 signal (SIGINT
, fatal_signal
);
8112 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
8113 signal (SIGHUP
, fatal_signal
);
8115 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
8116 signal (SIGTERM
, fatal_signal
);
8118 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
8119 signal (SIGPIPE
, fatal_signal
);
8122 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
8123 receive the signal. A different setting is inheritable */
8124 signal (SIGCHLD
, SIG_DFL
);
8127 /* Parsing and gimplification sometimes need quite large stack.
8128 Increase stack size limits if possible. */
8129 stack_limit_increase (64 * 1024 * 1024);
8131 /* Allocate the argument vector. */
8134 obstack_init (&obstack
);
8137 /* Build multilib_select, et. al from the separate lines that make up each
8138 multilib selection. */
8141 driver::build_multilib_strings () const
8145 const char *const *q
= multilib_raw
;
8148 obstack_init (&multilib_obstack
);
8149 while ((p
= *q
++) != (char *) 0)
8150 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8152 obstack_1grow (&multilib_obstack
, 0);
8153 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
8155 q
= multilib_matches_raw
;
8156 while ((p
= *q
++) != (char *) 0)
8157 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8159 obstack_1grow (&multilib_obstack
, 0);
8160 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
8162 q
= multilib_exclusions_raw
;
8163 while ((p
= *q
++) != (char *) 0)
8164 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8166 obstack_1grow (&multilib_obstack
, 0);
8167 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
8169 q
= multilib_reuse_raw
;
8170 while ((p
= *q
++) != (char *) 0)
8171 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8173 obstack_1grow (&multilib_obstack
, 0);
8174 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
8177 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
8180 obstack_1grow (&multilib_obstack
, ' ');
8181 obstack_grow (&multilib_obstack
,
8182 multilib_defaults_raw
[i
],
8183 strlen (multilib_defaults_raw
[i
]));
8187 obstack_1grow (&multilib_obstack
, 0);
8188 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
8192 /* Set up the spec-handling machinery. */
8195 driver::set_up_specs () const
8197 const char *spec_machine_suffix
;
8201 #ifdef INIT_ENVIRONMENT
8202 /* Set up any other necessary machine specific environment variables. */
8203 xputenv (INIT_ENVIRONMENT
);
8206 /* Make a table of what switches there are (switches, n_switches).
8207 Make a table of specified input files (infiles, n_infiles).
8208 Decode switches that are handled locally. */
8210 process_command (decoded_options_count
, decoded_options
);
8212 /* Initialize the vector of specs to just the default.
8213 This means one element containing 0s, as a terminator. */
8215 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
8216 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
8217 n_compilers
= n_default_compilers
;
8219 /* Read specs from a file if there is one. */
8221 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
8222 accel_dir_suffix
, dir_separator_str
, NULL
);
8223 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
8225 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
8226 /* Read the specs file unless it is a default one. */
8227 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
8228 read_specs (specs_file
, true, false);
8232 #ifdef ACCEL_COMPILER
8233 spec_machine_suffix
= machine_suffix
;
8235 spec_machine_suffix
= just_machine_suffix
;
8238 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
8239 for any override of as, ld and libraries. */
8240 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
8241 + strlen (spec_machine_suffix
) + sizeof ("specs"));
8242 strcpy (specs_file
, standard_exec_prefix
);
8243 strcat (specs_file
, spec_machine_suffix
);
8244 strcat (specs_file
, "specs");
8245 if (access (specs_file
, R_OK
) == 0)
8246 read_specs (specs_file
, true, false);
8248 /* Process any configure-time defaults specified for the command line
8249 options, via OPTION_DEFAULT_SPECS. */
8250 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
8251 do_option_spec (option_default_specs
[i
].name
,
8252 option_default_specs
[i
].spec
);
8254 /* Process DRIVER_SELF_SPECS, adding any new options to the end
8255 of the command line. */
8257 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
8258 do_self_spec (driver_self_specs
[i
]);
8260 /* If not cross-compiling, look for executables in the standard
8262 if (*cross_compile
== '0')
8264 if (*md_exec_prefix
)
8266 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
8267 PREFIX_PRIORITY_LAST
, 0, 0);
8271 /* Process sysroot_suffix_spec. */
8272 if (*sysroot_suffix_spec
!= 0
8273 && !no_sysroot_suffix
8274 && do_spec_2 (sysroot_suffix_spec
, NULL
) == 0)
8276 if (argbuf
.length () > 1)
8277 error ("spec failure: more than one argument to "
8278 "%<SYSROOT_SUFFIX_SPEC%>");
8279 else if (argbuf
.length () == 1)
8280 target_sysroot_suffix
= xstrdup (argbuf
.last ());
8283 #ifdef HAVE_LD_SYSROOT
8284 /* Pass the --sysroot option to the linker, if it supports that. If
8285 there is a sysroot_suffix_spec, it has already been processed by
8286 this point, so target_system_root really is the system root we
8288 if (target_system_root
)
8290 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
8291 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
8292 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
8296 /* Process sysroot_hdrs_suffix_spec. */
8297 if (*sysroot_hdrs_suffix_spec
!= 0
8298 && !no_sysroot_suffix
8299 && do_spec_2 (sysroot_hdrs_suffix_spec
, NULL
) == 0)
8301 if (argbuf
.length () > 1)
8302 error ("spec failure: more than one argument "
8303 "to %<SYSROOT_HEADERS_SUFFIX_SPEC%>");
8304 else if (argbuf
.length () == 1)
8305 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
8308 /* Look for startfiles in the standard places. */
8309 if (*startfile_prefix_spec
!= 0
8310 && do_spec_2 (startfile_prefix_spec
, NULL
) == 0
8311 && do_spec_1 (" ", 0, NULL
) == 0)
8315 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
8316 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
8317 PREFIX_PRIORITY_LAST
, 0, 1);
8319 /* We should eventually get rid of all these and stick to
8320 startfile_prefix_spec exclusively. */
8321 else if (*cross_compile
== '0' || target_system_root
)
8323 if (*md_startfile_prefix
)
8324 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
8325 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
8327 if (*md_startfile_prefix_1
)
8328 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
8329 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
8331 /* If standard_startfile_prefix is relative, base it on
8332 standard_exec_prefix. This lets us move the installed tree
8333 as a unit. If GCC_EXEC_PREFIX is defined, base
8334 standard_startfile_prefix on that as well.
8336 If the prefix is relative, only search it for native compilers;
8337 otherwise we will search a directory containing host libraries. */
8338 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
8339 add_sysrooted_prefix (&startfile_prefixes
,
8340 standard_startfile_prefix
, "BINUTILS",
8341 PREFIX_PRIORITY_LAST
, 0, 1);
8342 else if (*cross_compile
== '0')
8344 add_prefix (&startfile_prefixes
,
8345 concat (gcc_exec_prefix
8346 ? gcc_exec_prefix
: standard_exec_prefix
,
8348 standard_startfile_prefix
, NULL
),
8349 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
8352 /* Sysrooted prefixes are relocated because target_system_root is
8353 also relocated by gcc_exec_prefix. */
8354 if (*standard_startfile_prefix_1
)
8355 add_sysrooted_prefix (&startfile_prefixes
,
8356 standard_startfile_prefix_1
, "BINUTILS",
8357 PREFIX_PRIORITY_LAST
, 0, 1);
8358 if (*standard_startfile_prefix_2
)
8359 add_sysrooted_prefix (&startfile_prefixes
,
8360 standard_startfile_prefix_2
, "BINUTILS",
8361 PREFIX_PRIORITY_LAST
, 0, 1);
8364 /* Process any user specified specs in the order given on the command
8366 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
8368 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
8370 read_specs (filename
? filename
: uptr
->filename
, false, true);
8373 /* Process any user self specs. */
8375 struct spec_list
*sl
;
8376 for (sl
= specs
; sl
; sl
= sl
->next
)
8377 if (sl
->name_len
== sizeof "self_spec" - 1
8378 && !strcmp (sl
->name
, "self_spec"))
8379 do_self_spec (*sl
->ptr_spec
);
8384 enum save_temps save
;
8386 if (!compare_debug_second
)
8388 n_switches_debug_check
[1] = n_switches
;
8389 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
8390 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
8393 do_self_spec ("%:compare-debug-self-opt()");
8394 n_switches_debug_check
[0] = n_switches
;
8395 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
8396 switches_debug_check
[0] = switches
;
8398 n_switches
= n_switches_debug_check
[1];
8399 n_switches_alloc
= n_switches_alloc_debug_check
[1];
8400 switches
= switches_debug_check
[1];
8403 /* Avoid crash when computing %j in this early. */
8404 save
= save_temps_flag
;
8405 save_temps_flag
= SAVE_TEMPS_NONE
;
8407 compare_debug
= -compare_debug
;
8408 do_self_spec ("%:compare-debug-self-opt()");
8410 save_temps_flag
= save
;
8412 if (!compare_debug_second
)
8414 n_switches_debug_check
[1] = n_switches
;
8415 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
8416 switches_debug_check
[1] = switches
;
8417 compare_debug
= -compare_debug
;
8418 n_switches
= n_switches_debug_check
[0];
8419 n_switches_alloc
= n_switches_debug_check
[0];
8420 switches
= switches_debug_check
[0];
8425 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
8426 if (gcc_exec_prefix
)
8427 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
8428 dir_separator_str
, spec_version
,
8429 accel_dir_suffix
, dir_separator_str
, NULL
);
8431 /* Now we have the specs.
8432 Set the `valid' bits for switches that match anything in any spec. */
8434 validate_all_switches ();
8436 /* Now that we have the switches and the specs, set
8437 the subdirectory based on the options. */
8438 set_multilib_dir ();
8441 /* Set up to remember the pathname of gcc and any options
8442 needed for collect. We use argv[0] instead of progname because
8443 we need the complete pathname. */
8446 driver::putenv_COLLECT_GCC (const char *argv0
) const
8448 obstack_init (&collect_obstack
);
8449 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
8450 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
8451 xputenv (XOBFINISH (&collect_obstack
, char *));
8454 /* Set up to remember the pathname of the lto wrapper. */
8457 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
8459 char *lto_wrapper_file
;
8462 lto_wrapper_file
= NULL
;
8464 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
8466 if (lto_wrapper_file
)
8468 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
8469 set_static_spec_owned (<o_wrapper_spec
, lto_wrapper_file
);
8470 obstack_init (&collect_obstack
);
8471 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
8472 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
8473 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
8474 strlen (lto_wrapper_spec
) + 1);
8475 xputenv (XOBFINISH (&collect_obstack
, char *));
8480 /* Set up to remember the names of offload targets. */
8483 driver::maybe_putenv_OFFLOAD_TARGETS () const
8485 if (offload_targets
&& offload_targets
[0] != '\0')
8487 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
8488 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
8489 obstack_grow (&collect_obstack
, offload_targets
,
8490 strlen (offload_targets
) + 1);
8491 xputenv (XOBFINISH (&collect_obstack
, char *));
8494 free (offload_targets
);
8495 offload_targets
= NULL
;
8498 /* Reject switches that no pass was interested in. */
8501 driver::handle_unrecognized_options ()
8503 for (size_t i
= 0; (int) i
< n_switches
; i
++)
8504 if (! switches
[i
].validated
)
8506 const char *hint
= m_option_proposer
.suggest_option (switches
[i
].part1
);
8508 error ("unrecognized command-line option %<-%s%>;"
8509 " did you mean %<-%s%>?",
8510 switches
[i
].part1
, hint
);
8512 error ("unrecognized command-line option %<-%s%>",
8517 /* Handle the various -print-* options, returning 0 if the driver
8518 should exit, or nonzero if the driver should continue. */
8521 driver::maybe_print_and_exit () const
8523 if (print_search_dirs
)
8525 printf (_("install: %s%s\n"),
8526 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
8527 gcc_exec_prefix
? "" : machine_suffix
);
8528 printf (_("programs: %s\n"),
8529 build_search_list (&exec_prefixes
, "", false, false));
8530 printf (_("libraries: %s\n"),
8531 build_search_list (&startfile_prefixes
, "", false, true));
8535 if (print_file_name
)
8537 printf ("%s\n", find_file (print_file_name
));
8541 if (print_prog_name
)
8543 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
8545 /* Append USE_LD to the default linker. */
8546 #ifdef DEFAULT_LINKER
8548 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
8549 int len
= (sizeof (DEFAULT_LINKER
)
8550 - sizeof (HOST_EXECUTABLE_SUFFIX
));
8554 char *default_linker
= xstrdup (DEFAULT_LINKER
);
8555 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
8556 HOST_EXECUTABLE_SUFFIX. */
8557 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
8559 default_linker
[len
] = '\0';
8560 ld
= concat (default_linker
, use_ld
,
8561 HOST_EXECUTABLE_SUFFIX
, NULL
);
8566 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
8567 if (access (ld
, X_OK
) == 0)
8569 printf ("%s\n", ld
);
8573 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
8575 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
8576 printf ("%s\n", (newname
? newname
: print_prog_name
));
8580 if (print_multi_lib
)
8582 print_multilib_info ();
8586 if (print_multi_directory
)
8588 if (multilib_dir
== NULL
)
8591 printf ("%s\n", multilib_dir
);
8595 if (print_multiarch
)
8597 if (multiarch_dir
== NULL
)
8600 printf ("%s\n", multiarch_dir
);
8606 if (target_system_root
)
8608 if (target_sysroot_suffix
)
8609 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
8611 printf ("%s\n", target_system_root
);
8616 if (print_multi_os_directory
)
8618 if (multilib_os_dir
== NULL
)
8621 printf ("%s\n", multilib_os_dir
);
8625 if (print_sysroot_headers_suffix
)
8627 if (*sysroot_hdrs_suffix_spec
)
8629 printf("%s\n", (target_sysroot_hdrs_suffix
8630 ? target_sysroot_hdrs_suffix
8635 /* The error status indicates that only one set of fixed
8636 headers should be built. */
8637 fatal_error (input_location
,
8638 "not configured with sysroot headers suffix");
8641 if (print_help_list
)
8647 printf (_("\nFor bug reporting instructions, please see:\n"));
8648 printf ("%s.\n", bug_report_url
);
8653 /* We do not exit here. Instead we have created a fake input file
8654 called 'help-dummy' which needs to be compiled, and we pass this
8655 on the various sub-processes, along with the --help switch.
8656 Ensure their output appears after ours. */
8657 fputc ('\n', stdout
);
8663 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
8665 printf ("Copyright %s 2020 Free Software Foundation, Inc.\n",
8667 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
8668 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
8673 /* We do not exit here. We use the same mechanism of --help to print
8674 the version of the sub-processes. */
8675 fputc ('\n', stdout
);
8681 print_configuration (stderr
);
8689 /* Figure out what to do with each input file.
8690 Return true if we need to exit early from "main", false otherwise. */
8693 driver::prepare_infiles ()
8696 int lang_n_infiles
= 0;
8698 if (n_infiles
== added_libraries
)
8699 fatal_error (input_location
, "no input files");
8702 /* Early exit needed from main. */
8705 /* Make a place to record the compiler output file names
8706 that correspond to the input files. */
8709 i
+= lang_specific_extra_outfiles
;
8710 outfiles
= XCNEWVEC (const char *, i
);
8712 /* Record which files were specified explicitly as link input. */
8714 explicit_link_files
= XCNEWVEC (char, n_infiles
);
8716 combine_inputs
= have_o
|| flag_wpa
;
8718 for (i
= 0; (int) i
< n_infiles
; i
++)
8720 const char *name
= infiles
[i
].name
;
8721 struct compiler
*compiler
= lookup_compiler (name
,
8723 infiles
[i
].language
);
8725 if (compiler
&& !(compiler
->combinable
))
8726 combine_inputs
= false;
8728 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
8729 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
8730 infiles
[i
].incompiler
= compiler
;
8734 input_file_compiler
= compiler
;
8735 infiles
[i
].incompiler
= compiler
;
8739 /* Since there is no compiler for this input file, assume it is a
8741 explicit_link_files
[i
] = 1;
8742 infiles
[i
].incompiler
= NULL
;
8744 infiles
[i
].compiled
= false;
8745 infiles
[i
].preprocessed
= false;
8748 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
8749 fatal_error (input_location
,
8750 "cannot specify %<-o%> with %<-c%>, %<-S%> or %<-E%> "
8751 "with multiple files");
8753 /* No early exit needed from main; we can continue. */
8757 /* Run the spec machinery on each input file. */
8760 driver::do_spec_on_infiles () const
8764 for (i
= 0; (int) i
< n_infiles
; i
++)
8766 int this_file_error
= 0;
8768 /* Tell do_spec what to substitute for %i. */
8770 input_file_number
= i
;
8771 set_input (infiles
[i
].name
);
8773 if (infiles
[i
].compiled
)
8776 /* Use the same thing in %o, unless cp->spec says otherwise. */
8778 outfiles
[i
] = gcc_input_filename
;
8780 /* Figure out which compiler from the file's suffix. */
8783 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
8784 infiles
[i
].language
);
8786 if (input_file_compiler
)
8788 /* Ok, we found an applicable compiler. Run its spec. */
8790 if (input_file_compiler
->spec
[0] == '#')
8792 error ("%s: %s compiler not installed on this system",
8793 gcc_input_filename
, &input_file_compiler
->spec
[1]);
8794 this_file_error
= 1;
8802 free (debug_check_temp_file
[0]);
8803 debug_check_temp_file
[0] = NULL
;
8805 free (debug_check_temp_file
[1]);
8806 debug_check_temp_file
[1] = NULL
;
8809 value
= do_spec (input_file_compiler
->spec
);
8810 infiles
[i
].compiled
= true;
8812 this_file_error
= 1;
8813 else if (compare_debug
&& debug_check_temp_file
[0])
8816 inform (UNKNOWN_LOCATION
,
8817 "recompiling with %<-fcompare-debug%>");
8819 compare_debug
= -compare_debug
;
8820 n_switches
= n_switches_debug_check
[1];
8821 n_switches_alloc
= n_switches_alloc_debug_check
[1];
8822 switches
= switches_debug_check
[1];
8824 value
= do_spec (input_file_compiler
->spec
);
8826 compare_debug
= -compare_debug
;
8827 n_switches
= n_switches_debug_check
[0];
8828 n_switches_alloc
= n_switches_alloc_debug_check
[0];
8829 switches
= switches_debug_check
[0];
8833 error ("during %<-fcompare-debug%> recompilation");
8834 this_file_error
= 1;
8837 gcc_assert (debug_check_temp_file
[1]
8838 && filename_cmp (debug_check_temp_file
[0],
8839 debug_check_temp_file
[1]));
8842 inform (UNKNOWN_LOCATION
, "comparing final insns dumps");
8844 if (compare_files (debug_check_temp_file
))
8845 this_file_error
= 1;
8850 free (debug_check_temp_file
[0]);
8851 debug_check_temp_file
[0] = NULL
;
8853 free (debug_check_temp_file
[1]);
8854 debug_check_temp_file
[1] = NULL
;
8859 /* If this file's name does not contain a recognized suffix,
8860 record it as explicit linker input. */
8863 explicit_link_files
[i
] = 1;
8865 /* Clear the delete-on-failure queue, deleting the files in it
8866 if this compilation failed. */
8868 if (this_file_error
)
8870 delete_failure_queue ();
8873 /* If this compilation succeeded, don't delete those files later. */
8874 clear_failure_queue ();
8877 /* Reset the input file name to the first compile/object file name, for use
8878 with %b in LINK_SPEC. We use the first input file that we can find
8879 a compiler to compile it instead of using infiles.language since for
8880 languages other than C we use aliases that we then lookup later. */
8885 for (i
= 0; i
< n_infiles
; i
++)
8886 if (infiles
[i
].incompiler
8887 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
8889 set_input (infiles
[i
].name
);
8896 /* Make sure INPUT_FILE_NUMBER points to first available open
8898 input_file_number
= n_infiles
;
8899 if (lang_specific_pre_link ())
8904 /* If we have to run the linker, do it now. */
8907 driver::maybe_run_linker (const char *argv0
) const
8910 int linker_was_run
= 0;
8911 int num_linker_inputs
;
8913 /* Determine if there are any linker input files. */
8914 num_linker_inputs
= 0;
8915 for (i
= 0; (int) i
< n_infiles
; i
++)
8916 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
8917 num_linker_inputs
++;
8919 /* Arrange for temporary file names created during linking to take
8920 on names related with the linker output rather than with the
8921 inputs when appropriate. */
8922 if (outbase
&& *outbase
)
8926 char *tofree
= dumpdir
;
8927 gcc_checking_assert (strlen (dumpdir
) == dumpdir_length
);
8928 dumpdir
= concat (dumpdir
, outbase
, ".", NULL
);
8932 dumpdir
= concat (outbase
, ".", NULL
);
8933 dumpdir_length
+= strlen (outbase
) + 1;
8934 dumpdir_trailing_dash_added
= true;
8936 else if (dumpdir_trailing_dash_added
)
8938 gcc_assert (dumpdir
[dumpdir_length
- 1] == '-');
8939 dumpdir
[dumpdir_length
- 1] = '.';
8942 if (dumpdir_trailing_dash_added
)
8944 gcc_assert (dumpdir_length
> 0);
8945 gcc_assert (dumpdir
[dumpdir_length
- 1] == '.');
8950 input_basename
= outbase
= NULL
;
8951 outbase_length
= suffixed_basename_length
= basename_length
= 0;
8953 /* Run ld to link all the compiler output files. */
8955 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
8957 int tmp
= execution_count
;
8959 detect_jobserver ();
8963 #if HAVE_LTO_PLUGIN > 0
8964 #if HAVE_LTO_PLUGIN == 2
8965 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
8967 const char *fuse_linker_plugin
= "fuse-linker-plugin";
8971 /* We'll use ld if we can't find collect2. */
8972 if (! strcmp (linker_name_spec
, "collect2"))
8974 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
8976 set_static_spec_shared (&linker_name_spec
, "ld");
8979 #if HAVE_LTO_PLUGIN > 0
8980 #if HAVE_LTO_PLUGIN == 2
8981 if (!switch_matches (fno_use_linker_plugin
,
8982 fno_use_linker_plugin
8983 + strlen (fno_use_linker_plugin
), 0))
8985 if (switch_matches (fuse_linker_plugin
,
8987 + strlen (fuse_linker_plugin
), 0))
8990 char *temp_spec
= find_a_file (&exec_prefixes
,
8991 LTOPLUGINSONAME
, R_OK
,
8994 fatal_error (input_location
,
8995 "%<-fuse-linker-plugin%>, but %s not found",
8997 linker_plugin_file_spec
= convert_white_space (temp_spec
);
9000 set_static_spec_shared (<o_gcc_spec
, argv0
);
9003 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
9005 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
9006 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
9008 if (print_subprocess_help
== 1)
9010 printf (_("\nLinker options\n==============\n\n"));
9011 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
9012 " to the linker.\n\n"));
9015 int value
= do_spec (link_command_spec
);
9018 linker_was_run
= (tmp
!= execution_count
);
9021 /* If options said don't run linker,
9022 complain about input files to be given to the linker. */
9024 if (! linker_was_run
&& !seen_error ())
9025 for (i
= 0; (int) i
< n_infiles
; i
++)
9026 if (explicit_link_files
[i
]
9027 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
9028 warning (0, "%s: linker input file unused because linking not done",
9032 /* The end of "main". */
9035 driver::final_actions () const
9037 /* Delete some or all of the temporary files we made. */
9040 delete_failure_queue ();
9041 delete_temp_files ();
9043 if (print_help_list
)
9045 printf (("\nFor bug reporting instructions, please see:\n"));
9046 printf ("%s\n", bug_report_url
);
9050 /* Detect whether jobserver is active and working. If not drop
9051 --jobserver-auth from MAKEFLAGS. */
9054 driver::detect_jobserver () const
9056 /* Detect jobserver and drop it if it's not working. */
9057 const char *makeflags
= env
.get ("MAKEFLAGS");
9058 if (makeflags
!= NULL
)
9060 const char *needle
= "--jobserver-auth=";
9061 const char *n
= strstr (makeflags
, needle
);
9068 = (sscanf (n
+ strlen (needle
), "%d,%d", &rfd
, &wfd
) == 2
9071 && is_valid_fd (rfd
)
9072 && is_valid_fd (wfd
));
9074 /* Drop the jobserver if it's not working now. */
9077 unsigned offset
= n
- makeflags
;
9078 char *dup
= xstrdup (makeflags
);
9081 const char *space
= strchr (makeflags
+ offset
, ' ');
9083 strcpy (dup
+ offset
, space
);
9084 xputenv (concat ("MAKEFLAGS=", dup
, NULL
));
9090 /* Determine what the exit code of the driver should be. */
9093 driver::get_exit_code () const
9095 return (signal_count
!= 0 ? 2
9096 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
9100 /* Find the proper compilation spec for the file name NAME,
9101 whose length is LENGTH. LANGUAGE is the specified language,
9102 or 0 if this file is to be passed to the linker. */
9104 static struct compiler
*
9105 lookup_compiler (const char *name
, size_t length
, const char *language
)
9107 struct compiler
*cp
;
9109 /* If this was specified by the user to be a linker input, indicate that. */
9110 if (language
!= 0 && language
[0] == '*')
9113 /* Otherwise, look for the language, if one is spec'd. */
9116 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
9117 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
9119 if (name
!= NULL
&& strcmp (name
, "-") == 0
9120 && (strcmp (cp
->suffix
, "@c-header") == 0
9121 || strcmp (cp
->suffix
, "@c++-header") == 0)
9123 fatal_error (input_location
,
9124 "cannot use %<-%> as input filename for a "
9125 "precompiled header");
9130 error ("language %s not recognized", language
);
9134 /* Look for a suffix. */
9135 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
9137 if (/* The suffix `-' matches only the file name `-'. */
9138 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
9139 || (strlen (cp
->suffix
) < length
9140 /* See if the suffix matches the end of NAME. */
9141 && !strcmp (cp
->suffix
,
9142 name
+ length
- strlen (cp
->suffix
))
9147 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
9148 /* Look again, but case-insensitively this time. */
9150 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
9152 if (/* The suffix `-' matches only the file name `-'. */
9153 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
9154 || (strlen (cp
->suffix
) < length
9155 /* See if the suffix matches the end of NAME. */
9156 && ((!strcmp (cp
->suffix
,
9157 name
+ length
- strlen (cp
->suffix
))
9158 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
9159 && !strcasecmp (cp
->suffix
,
9160 name
+ length
- strlen (cp
->suffix
)))
9166 if (cp
>= compilers
)
9168 if (cp
->spec
[0] != '@')
9169 /* A non-alias entry: return it. */
9172 /* An alias entry maps a suffix to a language.
9173 Search for the language; pass 0 for NAME and LENGTH
9174 to avoid infinite recursion if language not found. */
9175 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
9181 save_string (const char *s
, int len
)
9183 char *result
= XNEWVEC (char, len
+ 1);
9185 gcc_checking_assert (strlen (s
) >= (unsigned int) len
);
9186 memcpy (result
, s
, len
);
9193 validate_switches_from_spec (const char *spec
, bool user
)
9195 const char *p
= spec
;
9201 || (*p
== 'W' && *++p
== '{')
9202 || (*p
== '@' && *++p
== '{')))
9203 /* We have a switch spec. */
9204 p
= validate_switches (p
+ 1, user
, *p
== '{');
9208 validate_all_switches (void)
9210 struct compiler
*comp
;
9211 struct spec_list
*spec
;
9213 for (comp
= compilers
; comp
->spec
; comp
++)
9214 validate_switches_from_spec (comp
->spec
, false);
9216 /* Look through the linked list of specs read from the specs file. */
9217 for (spec
= specs
; spec
; spec
= spec
->next
)
9218 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
9220 validate_switches_from_spec (link_command_spec
, false);
9223 /* Look at the switch-name that comes after START and mark as valid
9224 all supplied switches that match it. If BRACED, handle other
9225 switches after '|' and '&', and specs after ':' until ';' or '}',
9226 going back for more switches after ';'. Without BRACED, handle
9227 only one atom. Return a pointer to whatever follows the handled
9228 items, after the closing brace if BRACED. */
9231 validate_switches (const char *start
, bool user_spec
, bool braced
)
9233 const char *p
= start
;
9237 bool suffix
= false;
9238 bool starred
= false;
9240 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
9249 if (*p
== '.' || *p
== ',')
9253 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
9254 || *p
== ',' || *p
== '.' || *p
== '@')
9259 starred
= true, p
++;
9265 /* Mark all matching switches as valid. */
9266 for (i
= 0; i
< n_switches
; i
++)
9267 if (!strncmp (switches
[i
].part1
, atom
, len
)
9268 && (starred
|| switches
[i
].part1
[len
] == '\0')
9269 && (switches
[i
].known
|| user_spec
))
9270 switches
[i
].validated
= true;
9277 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
9280 if (*p
&& p
[-1] == ':')
9282 while (*p
&& *p
!= ';' && *p
!= '}')
9287 if (*p
== '{' || *p
== '<')
9288 p
= validate_switches (p
+1, user_spec
, *p
== '{');
9289 else if (p
[0] == 'W' && p
[1] == '{')
9290 p
= validate_switches (p
+2, user_spec
, true);
9291 else if (p
[0] == '@' && p
[1] == '{')
9292 p
= validate_switches (p
+2, user_spec
, true);
9299 if (*p
&& p
[-1] == ';')
9313 static struct mdswitchstr
*mdswitches
;
9314 static int n_mdswitches
;
9316 /* Check whether a particular argument was used. The first time we
9317 canonicalize the switches to keep only the ones we care about. */
9322 int operator () (const char *p
, int len
);
9329 const char *replace
;
9334 mswitchstr
*mswitches
;
9339 used_arg_t used_arg
;
9342 used_arg_t::operator () (const char *p
, int len
)
9348 struct mswitchstr
*matches
;
9352 /* Break multilib_matches into the component strings of string
9353 and replacement string. */
9354 for (q
= multilib_matches
; *q
!= '\0'; q
++)
9359 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
9361 q
= multilib_matches
;
9370 fatal_error (input_location
, "multilib spec %qs is invalid",
9375 matches
[i
].len
= q
- matches
[i
].str
;
9377 matches
[i
].replace
= ++q
;
9378 while (*q
!= ';' && *q
!= '\0')
9381 goto invalid_matches
;
9384 matches
[i
].rep_len
= q
- matches
[i
].replace
;
9390 /* Now build a list of the replacement string for switches that we care
9391 about. Make sure we allocate at least one entry. This prevents
9392 xmalloc from calling fatal, and prevents us from re-executing this
9395 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
9396 for (i
= 0; i
< n_switches
; i
++)
9397 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
9399 int xlen
= strlen (switches
[i
].part1
);
9400 for (j
= 0; j
< cnt
; j
++)
9401 if (xlen
== matches
[j
].len
9402 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
9404 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
9405 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
9406 mswitches
[n_mswitches
].replace
= (char *) 0;
9407 mswitches
[n_mswitches
].rep_len
= 0;
9413 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
9414 on the command line nor any options mutually incompatible with
9416 for (i
= 0; i
< n_mdswitches
; i
++)
9420 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
9426 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
9427 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
9429 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
9436 if (*q
!= ' ' && *q
!= '\0')
9438 while (*r
!= ' ' && *r
!= '\0')
9441 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
9444 if (used_arg (r
, q
- r
))
9449 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
9450 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
9451 mswitches
[n_mswitches
].replace
= (char *) 0;
9452 mswitches
[n_mswitches
].rep_len
= 0;
9465 for (i
= 0; i
< n_mswitches
; i
++)
9466 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
9472 void used_arg_t::finalize ()
9474 XDELETEVEC (mswitches
);
9481 default_arg (const char *p
, int len
)
9485 for (i
= 0; i
< n_mdswitches
; i
++)
9486 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
9492 /* Work out the subdirectory to use based on the options. The format of
9493 multilib_select is a list of elements. Each element is a subdirectory
9494 name followed by a list of options followed by a semicolon. The format
9495 of multilib_exclusions is the same, but without the preceding
9496 directory. First gcc will check the exclusions, if none of the options
9497 beginning with an exclamation point are present, and all of the other
9498 options are present, then we will ignore this completely. Passing
9499 that, gcc will consider each multilib_select in turn using the same
9500 rules for matching the options. If a match is found, that subdirectory
9502 A subdirectory name is optionally followed by a colon and the corresponding
9506 set_multilib_dir (void)
9509 unsigned int this_path_len
;
9510 const char *this_path
, *this_arg
;
9511 const char *start
, *end
;
9513 int ok
, ndfltok
, first
;
9516 start
= multilib_defaults
;
9517 while (*start
== ' ' || *start
== '\t')
9519 while (*start
!= '\0')
9522 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
9524 while (*start
== ' ' || *start
== '\t')
9532 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
9533 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
9535 while (*start
== ' ' || *start
== '\t')
9541 for (end
= start
+ 1;
9542 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
9545 obstack_grow (&multilib_obstack
, start
, end
- start
);
9546 obstack_1grow (&multilib_obstack
, 0);
9547 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
9548 mdswitches
[i
++].len
= end
- start
;
9555 p
= multilib_exclusions
;
9558 /* Ignore newlines. */
9565 /* Check the arguments. */
9572 fatal_error (input_location
, "multilib exclusions %qs is invalid",
9573 multilib_exclusions
);
9583 while (*p
!= ' ' && *p
!= ';')
9586 goto invalid_exclusions
;
9590 if (*this_arg
!= '!')
9598 ok
= used_arg (this_arg
, p
- this_arg
);
9613 p
= multilib_select
;
9615 /* Append multilib reuse rules if any. With those rules, we can reuse
9616 one multilib for certain different options sets. */
9617 if (strlen (multilib_reuse
) > 0)
9618 p
= concat (p
, multilib_reuse
, NULL
);
9622 /* Ignore newlines. */
9629 /* Get the initial path. */
9636 fatal_error (input_location
, "multilib select %qs %qs is invalid",
9637 multilib_select
, multilib_reuse
);
9641 this_path_len
= p
- this_path
;
9643 /* Check the arguments. */
9650 goto invalid_select
;
9659 while (*p
!= ' ' && *p
!= ';')
9662 goto invalid_select
;
9666 if (*this_arg
!= '!')
9674 /* If this is a default argument, we can just ignore it.
9675 This is true even if this_arg begins with '!'. Beginning
9676 with '!' does not mean that this argument is necessarily
9677 inappropriate for this library: it merely means that
9678 there is a more specific library which uses this
9679 argument. If this argument is a default, we need not
9680 consider that more specific library. */
9681 ok
= used_arg (this_arg
, p
- this_arg
);
9688 if (default_arg (this_arg
, p
- this_arg
))
9697 if (this_path_len
!= 1
9698 || this_path
[0] != '.')
9700 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
9703 strncpy (new_multilib_dir
, this_path
, this_path_len
);
9704 new_multilib_dir
[this_path_len
] = '\0';
9705 q
= strchr (new_multilib_dir
, ':');
9708 multilib_dir
= new_multilib_dir
;
9715 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
9717 while (q
< end
&& *q
!= ':')
9721 const char *q2
= q
+ 1, *ml_end
= end
;
9722 char *new_multilib_os_dir
;
9724 while (q2
< end
&& *q2
!= ':')
9728 if (ml_end
- q
== 1)
9729 multilib_os_dir
= xstrdup (".");
9732 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
9733 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
9734 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
9735 multilib_os_dir
= new_multilib_os_dir
;
9738 if (q2
< end
&& *q2
== ':')
9740 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
9741 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
9742 new_multiarch_dir
[end
- q2
- 1] = '\0';
9743 multiarch_dir
= new_multiarch_dir
;
9752 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
9753 && strcmp (multilib_os_dir
, ".") == 0)
9755 free (CONST_CAST (char *, multilib_os_dir
));
9756 multilib_os_dir
= NULL
;
9758 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
9759 multilib_os_dir
= multilib_dir
;
9762 /* Print out the multiple library subdirectory selection
9763 information. This prints out a series of lines. Each line looks
9764 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
9765 required. Only the desired options are printed out, the negative
9766 matches. The options are print without a leading dash. There are
9767 no spaces to make it easy to use the information in the shell.
9768 Each subdirectory is printed only once. This assumes the ordering
9769 generated by the genmultilib script. Also, we leave out ones that match
9773 print_multilib_info (void)
9775 const char *p
= multilib_select
;
9776 const char *last_path
= 0, *this_path
;
9778 unsigned int last_path_len
= 0;
9783 /* Ignore newlines. */
9790 /* Get the initial path. */
9797 fatal_error (input_location
,
9798 "multilib select %qs is invalid", multilib_select
);
9804 /* When --disable-multilib was used but target defines
9805 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
9806 with .:: for multiarch configurations) are there just to find
9807 multilib_os_dir, so skip them from output. */
9808 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
9811 /* Check for matches with the multilib_exclusions. We don't bother
9812 with the '!' in either list. If any of the exclusion rules match
9813 all of its options with the select rule, we skip it. */
9815 const char *e
= multilib_exclusions
;
9816 const char *this_arg
;
9821 /* Ignore newlines. */
9828 /* Check the arguments. */
9837 fatal_error (input_location
,
9838 "multilib exclusion %qs is invalid",
9839 multilib_exclusions
);
9850 while (*e
!= ' ' && *e
!= ';')
9853 goto invalid_exclusion
;
9861 int len
= e
- this_arg
;
9864 goto invalid_select
;
9868 while (*q
!= ' ' && *q
!= ';')
9871 goto invalid_select
;
9875 if (! strncmp (arg
, this_arg
,
9876 (len
< q
- arg
) ? q
- arg
: len
)
9877 || default_arg (this_arg
, e
- this_arg
))
9907 /* If this is a duplicate, skip it. */
9908 skip
= (last_path
!= 0
9909 && (unsigned int) (p
- this_path
) == last_path_len
9910 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
9912 last_path
= this_path
;
9913 last_path_len
= p
- this_path
;
9916 /* If this directory requires any default arguments, we can skip
9917 it. We will already have printed a directory identical to
9918 this one which does not require that default argument. */
9929 goto invalid_select
;
9936 while (*q
!= ' ' && *q
!= ';')
9939 goto invalid_select
;
9944 && default_arg (arg
, q
- arg
))
9959 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
9970 goto invalid_select
;
9978 use_arg
= *p
!= '!';
9983 while (*p
!= ' ' && *p
!= ';')
9986 goto invalid_select
;
9998 /* If there are extra options, print them now. */
9999 if (multilib_extra
&& *multilib_extra
)
10001 int print_at
= TRUE
;
10004 for (q
= multilib_extra
; *q
!= '\0'; q
++)
10025 /* getenv built-in spec function.
10027 Returns the value of the environment variable given by its first argument,
10028 concatenated with the second argument. If the variable is not defined, a
10029 fatal error is issued unless such undefs are internally allowed, in which
10030 case the variable name prefixed by a '/' is used as the variable value.
10032 The leading '/' allows using the result at a spot where a full path would
10033 normally be expected and when the actual value doesn't really matter since
10034 undef vars are allowed. */
10036 static const char *
10037 getenv_spec_function (int argc
, const char **argv
)
10040 const char *varname
;
10050 value
= env
.get (varname
);
10052 /* If the variable isn't defined and this is allowed, craft our expected
10053 return value. Assume variable names used in specs strings don't contain
10054 any active spec character so don't need escaping. */
10055 if (!value
&& spec_undefvar_allowed
)
10057 result
= XNEWVAR (char, strlen(varname
) + 2);
10058 sprintf (result
, "/%s", varname
);
10063 fatal_error (input_location
,
10064 "environment variable %qs not defined", varname
);
10066 /* We have to escape every character of the environment variable so
10067 they are not interpreted as active spec characters. A
10068 particularly painful case is when we are reading a variable
10069 holding a windows path complete with \ separators. */
10070 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
10071 result
= XNEWVAR (char, len
);
10072 for (ptr
= result
; *value
; ptr
+= 2)
10078 strcpy (ptr
, argv
[1]);
10083 /* if-exists built-in spec function.
10085 Checks to see if the file specified by the absolute pathname in
10086 ARGS exists. Returns that pathname if found.
10088 The usual use for this function is to check for a library file
10089 (whose name has been expanded with %s). */
10091 static const char *
10092 if_exists_spec_function (int argc
, const char **argv
)
10094 /* Must have only one argument. */
10095 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
10101 /* if-exists-else built-in spec function.
10103 This is like if-exists, but takes an additional argument which
10104 is returned if the first argument does not exist. */
10106 static const char *
10107 if_exists_else_spec_function (int argc
, const char **argv
)
10109 /* Must have exactly two arguments. */
10113 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
10119 /* if-exists-then-else built-in spec function.
10121 Checks to see if the file specified by the absolute pathname in
10122 the first arg exists. Returns the second arg if so, otherwise returns
10123 the third arg if it is present. */
10125 static const char *
10126 if_exists_then_else_spec_function (int argc
, const char **argv
)
10129 /* Must have two or three arguments. */
10130 if (argc
!= 2 && argc
!= 3)
10133 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
10142 /* sanitize built-in spec function.
10144 This returns non-NULL, if sanitizing address, thread or
10145 any of the undefined behavior sanitizers. */
10147 static const char *
10148 sanitize_spec_function (int argc
, const char **argv
)
10153 if (strcmp (argv
[0], "address") == 0)
10154 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
10155 if (strcmp (argv
[0], "hwaddress") == 0)
10156 return (flag_sanitize
& SANITIZE_USER_HWADDRESS
) ? "" : NULL
;
10157 if (strcmp (argv
[0], "kernel-address") == 0)
10158 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
10159 if (strcmp (argv
[0], "kernel-hwaddress") == 0)
10160 return (flag_sanitize
& SANITIZE_KERNEL_HWADDRESS
) ? "" : NULL
;
10161 if (strcmp (argv
[0], "thread") == 0)
10162 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
10163 if (strcmp (argv
[0], "undefined") == 0)
10164 return ((flag_sanitize
10165 & (SANITIZE_UNDEFINED
| SANITIZE_UNDEFINED_NONDEFAULT
))
10166 && !flag_sanitize_undefined_trap_on_error
) ? "" : NULL
;
10167 if (strcmp (argv
[0], "leak") == 0)
10168 return ((flag_sanitize
10169 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
10170 == SANITIZE_LEAK
) ? "" : NULL
;
10174 /* replace-outfile built-in spec function.
10176 This looks for the first argument in the outfiles array's name and
10177 replaces it with the second argument. */
10179 static const char *
10180 replace_outfile_spec_function (int argc
, const char **argv
)
10183 /* Must have exactly two arguments. */
10187 for (i
= 0; i
< n_infiles
; i
++)
10189 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
10190 outfiles
[i
] = xstrdup (argv
[1]);
10195 /* remove-outfile built-in spec function.
10197 * This looks for the first argument in the outfiles array's name and
10200 static const char *
10201 remove_outfile_spec_function (int argc
, const char **argv
)
10204 /* Must have exactly one argument. */
10208 for (i
= 0; i
< n_infiles
; i
++)
10210 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
10211 outfiles
[i
] = NULL
;
10216 /* Given two version numbers, compares the two numbers.
10217 A version number must match the regular expression
10218 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
10221 compare_version_strings (const char *v1
, const char *v2
)
10226 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
10227 REG_EXTENDED
| REG_NOSUB
) != 0)
10229 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
10230 if (rresult
== REG_NOMATCH
)
10231 fatal_error (input_location
, "invalid version number %qs", v1
);
10232 else if (rresult
!= 0)
10234 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
10235 if (rresult
== REG_NOMATCH
)
10236 fatal_error (input_location
, "invalid version number %qs", v2
);
10237 else if (rresult
!= 0)
10240 return strverscmp (v1
, v2
);
10244 /* version_compare built-in spec function.
10246 This takes an argument of the following form:
10248 <comparison-op> <arg1> [<arg2>] <switch> <result>
10250 and produces "result" if the comparison evaluates to true,
10251 and nothing if it doesn't.
10253 The supported <comparison-op> values are:
10255 >= true if switch is a later (or same) version than arg1
10257 < true if switch is an earlier version than arg1
10259 >< true if switch is arg1 or later, and earlier than arg2
10260 <> true if switch is earlier than arg1 or is arg2 or later
10262 If the switch is not present, the condition is false unless
10263 the first character of the <comparison-op> is '!'.
10266 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
10267 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
10269 static const char *
10270 version_compare_spec_function (int argc
, const char **argv
)
10274 const char *switch_value
= NULL
;
10279 fatal_error (input_location
, "too few arguments to %%:version-compare");
10280 if (argv
[0][0] == '\0')
10282 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
10284 if (argc
!= nargs
+ 3)
10285 fatal_error (input_location
, "too many arguments to %%:version-compare");
10287 switch_len
= strlen (argv
[nargs
+ 1]);
10288 for (i
= 0; i
< n_switches
; i
++)
10289 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
10290 && check_live_switch (i
, switch_len
))
10291 switch_value
= switches
[i
].part1
+ switch_len
;
10293 if (switch_value
== NULL
)
10294 comp1
= comp2
= -1;
10297 comp1
= compare_version_strings (switch_value
, argv
[1]);
10299 comp2
= compare_version_strings (switch_value
, argv
[2]);
10301 comp2
= -1; /* This value unused. */
10304 switch (argv
[0][0] << 8 | argv
[0][1])
10306 case '>' << 8 | '=':
10307 result
= comp1
>= 0;
10309 case '!' << 8 | '<':
10310 result
= comp1
>= 0 || switch_value
== NULL
;
10313 result
= comp1
< 0;
10315 case '!' << 8 | '>':
10316 result
= comp1
< 0 || switch_value
== NULL
;
10318 case '>' << 8 | '<':
10319 result
= comp1
>= 0 && comp2
< 0;
10321 case '<' << 8 | '>':
10322 result
= comp1
< 0 || comp2
>= 0;
10326 fatal_error (input_location
,
10327 "unknown operator %qs in %%:version-compare", argv
[0]);
10332 return argv
[nargs
+ 2];
10335 /* %:include builtin spec function. This differs from %include in that it
10336 can be nested inside a spec, and thus be conditionalized. It takes
10337 one argument, the filename, and looks for it in the startfile path.
10338 The result is always NULL, i.e. an empty expansion. */
10340 static const char *
10341 include_spec_function (int argc
, const char **argv
)
10348 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
10349 read_specs (file
? file
: argv
[0], false, false);
10354 /* %:find-file spec function. This function replaces its argument by
10355 the file found through find_file, that is the -print-file-name gcc
10357 static const char *
10358 find_file_spec_function (int argc
, const char **argv
)
10365 file
= find_file (argv
[0]);
10370 /* %:find-plugindir spec function. This function replaces its argument
10371 by the -iplugindir=<dir> option. `dir' is found through find_file, that
10372 is the -print-file-name gcc program option. */
10373 static const char *
10374 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
10376 const char *option
;
10381 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
10386 /* %:print-asm-header spec function. Print a banner to say that the
10387 following output is from the assembler. */
10389 static const char *
10390 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
10391 const char **argv ATTRIBUTE_UNUSED
)
10393 printf (_("Assembler options\n=================\n\n"));
10394 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
10399 /* Get a random number for -frandom-seed */
10401 static unsigned HOST_WIDE_INT
10402 get_random_number (void)
10404 unsigned HOST_WIDE_INT ret
= 0;
10407 fd
= open ("/dev/urandom", O_RDONLY
);
10410 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
10416 /* Get some more or less random data. */
10417 #ifdef HAVE_GETTIMEOFDAY
10421 gettimeofday (&tv
, NULL
);
10422 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
10426 time_t now
= time (NULL
);
10428 if (now
!= (time_t)-1)
10429 ret
= (unsigned) now
;
10433 return ret
^ getpid ();
10436 /* %:compare-debug-dump-opt spec function. Save the last argument,
10437 expected to be the last -fdump-final-insns option, or generate a
10440 static const char *
10441 compare_debug_dump_opt_spec_function (int arg
,
10442 const char **argv ATTRIBUTE_UNUSED
)
10447 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
10450 fatal_error (input_location
,
10451 "too many arguments to %%:compare-debug-dump-opt");
10453 do_spec_2 ("%{fdump-final-insns=*:%*}", NULL
);
10454 do_spec_1 (" ", 0, NULL
);
10456 if (argbuf
.length () > 0
10457 && strcmp (argv
[argbuf
.length () - 1], ".") != 0)
10459 if (!compare_debug
)
10462 name
= xstrdup (argv
[argbuf
.length () - 1]);
10467 if (argbuf
.length () > 0)
10468 do_spec_2 ("%B.gkd", NULL
);
10469 else if (!compare_debug
)
10472 do_spec_2 ("%{!save-temps*:%g.gkd}%{save-temps*:%B.gkd}", NULL
);
10474 do_spec_1 (" ", 0, NULL
);
10476 gcc_assert (argbuf
.length () > 0);
10478 name
= xstrdup (argbuf
.last ());
10480 char *arg
= quote_spec (xstrdup (name
));
10481 ret
= concat ("-fdump-final-insns=", arg
, NULL
);
10485 which
= compare_debug
< 0;
10486 debug_check_temp_file
[which
] = name
;
10490 unsigned HOST_WIDE_INT value
= get_random_number ();
10492 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
10498 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
10509 /* %:compare-debug-self-opt spec function. Expands to the options
10510 that are to be passed in the second compilation of
10513 static const char *
10514 compare_debug_self_opt_spec_function (int arg
,
10515 const char **argv ATTRIBUTE_UNUSED
)
10518 fatal_error (input_location
,
10519 "too many arguments to %%:compare-debug-self-opt");
10521 if (compare_debug
>= 0)
10525 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
10526 %<fdump-final-insns=* -w -S -o %j \
10527 %{!fcompare-debug-second:-fcompare-debug-second} \
10528 ", compare_debug_opt
, NULL
);
10531 /* %:pass-through-libs spec function. Finds all -l options and input
10532 file names in the lib spec passed to it, and makes a list of them
10533 prepended with the plugin option to cause them to be passed through
10534 to the final link after all the new object files have been added. */
10537 pass_through_libs_spec_func (int argc
, const char **argv
)
10539 char *prepended
= xstrdup (" ");
10541 /* Shlemiel the painter's algorithm. Innately horrible, but at least
10542 we know that there will never be more than a handful of strings to
10543 concat, and it's only once per run, so it's not worth optimising. */
10544 for (n
= 0; n
< argc
; n
++)
10546 char *old
= prepended
;
10547 /* Anything that isn't an option is a full path to an output
10548 file; pass it through if it ends in '.a'. Among options,
10550 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
10552 const char *lopt
= argv
[n
] + 2;
10553 /* Handle both joined and non-joined -l options. If for any
10554 reason there's a trailing -l with no joined or following
10555 arg just discard it. */
10556 if (!*lopt
&& ++n
>= argc
)
10560 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
10563 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
10565 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
10566 argv
[n
], " ", NULL
);
10568 if (prepended
!= old
)
10575 not_actual_file_p (const char *name
)
10577 return (strcmp (name
, "-") == 0
10578 || strcmp (name
, HOST_BIT_BUCKET
) == 0);
10581 /* %:dumps spec function. Take an optional argument that overrides
10582 the default extension for -dumpbase and -dumpbase-ext.
10583 Return -dumpdir, -dumpbase and -dumpbase-ext, if needed. */
10585 dumps_spec_func (int argc
, const char **argv ATTRIBUTE_UNUSED
)
10587 const char *ext
= dumpbase_ext
;
10590 char *args
[3] = { NULL
, NULL
, NULL
};
10593 /* Do not compute a default for -dumpbase-ext when -dumpbase was
10594 given explicitly. */
10595 if (dumpbase
&& *dumpbase
&& !ext
)
10600 /* Do not override the explicitly-specified -dumpbase-ext with
10601 the specs-provided overrider. */
10605 else if (argc
!= 0)
10606 fatal_error (input_location
, "too many arguments for %%:dumps");
10610 p
= quote_spec_arg (xstrdup (dumpdir
));
10611 args
[nargs
++] = concat (" -dumpdir ", p
, NULL
);
10616 ext
= input_basename
+ basename_length
;
10618 /* Use the precomputed outbase, or compute dumpbase from
10619 input_basename, just like %b would. */
10622 if (dumpbase
&& *dumpbase
)
10624 base
= xstrdup (dumpbase
);
10625 p
= base
+ outbase_length
;
10626 gcc_checking_assert (strncmp (base
, outbase
, outbase_length
) == 0);
10627 gcc_checking_assert (strcmp (p
, ext
) == 0);
10629 else if (outbase_length
)
10631 base
= xstrndup (outbase
, outbase_length
);
10636 base
= xstrndup (input_basename
, suffixed_basename_length
);
10637 p
= base
+ basename_length
;
10640 if (compare_debug
< 0 || !p
|| strcmp (p
, ext
) != 0)
10646 if (compare_debug
< 0)
10651 p
= concat (base
, gk
, ext
, NULL
);
10657 base
= quote_spec_arg (base
);
10658 args
[nargs
++] = concat (" -dumpbase ", base
, NULL
);
10663 p
= quote_spec_arg (xstrdup (ext
));
10664 args
[nargs
++] = concat (" -dumpbase-ext ", p
, NULL
);
10668 const char *ret
= concat (args
[0], args
[1], args
[2], NULL
);
10670 free (args
[--nargs
]);
10675 /* Returns "" if ARGV[ARGC - 2] is greater than ARGV[ARGC-1].
10676 Otherwise, return NULL. */
10678 static const char *
10679 greater_than_spec_func (int argc
, const char **argv
)
10686 gcc_assert (argc
>= 2);
10688 long arg
= strtol (argv
[argc
- 2], &converted
, 10);
10689 gcc_assert (converted
!= argv
[argc
- 2]);
10691 long lim
= strtol (argv
[argc
- 1], &converted
, 10);
10692 gcc_assert (converted
!= argv
[argc
- 1]);
10700 /* Returns "" if debug_info_level is greater than ARGV[ARGC-1].
10701 Otherwise, return NULL. */
10703 static const char *
10704 debug_level_greater_than_spec_func (int argc
, const char **argv
)
10709 fatal_error (input_location
,
10710 "wrong number of arguments to %%:debug-level-gt");
10712 long arg
= strtol (argv
[0], &converted
, 10);
10713 gcc_assert (converted
!= argv
[0]);
10715 if (debug_info_level
> arg
)
10721 /* Returns "" if dwarf_version is greater than ARGV[ARGC-1].
10722 Otherwise, return NULL. */
10724 static const char *
10725 dwarf_version_greater_than_spec_func (int argc
, const char **argv
)
10730 fatal_error (input_location
,
10731 "wrong number of arguments to %%:dwarf-version-gt");
10733 long arg
= strtol (argv
[0], &converted
, 10);
10734 gcc_assert (converted
!= argv
[0]);
10736 if (dwarf_version
> arg
)
10743 path_prefix_reset (path_prefix
*prefix
)
10745 struct prefix_list
*iter
, *next
;
10746 iter
= prefix
->plist
;
10750 free (const_cast <char *> (iter
->prefix
));
10755 prefix
->max_len
= 0;
10758 /* The function takes 3 arguments: OPTION name, file name and location
10759 where we search for Fortran modules.
10760 When the FILE is found by find_file, return OPTION=path_to_file. */
10762 static const char *
10763 find_fortran_preinclude_file (int argc
, const char **argv
)
10765 char *result
= NULL
;
10769 struct path_prefix prefixes
= { 0, 0, "preinclude" };
10771 /* Search first for 'finclude' folder location for a header file
10772 installed by the compiler (similar to omp_lib.h). */
10773 add_prefix (&prefixes
, argv
[2], NULL
, 0, 0, 0);
10774 #ifdef TOOL_INCLUDE_DIR
10775 /* Then search: <prefix>/<target>/<include>/finclude */
10776 add_prefix (&prefixes
, TOOL_INCLUDE_DIR
"/finclude/",
10779 #ifdef NATIVE_SYSTEM_HEADER_DIR
10780 /* Then search: <sysroot>/usr/include/finclude/<multilib> */
10781 add_sysrooted_hdrs_prefix (&prefixes
, NATIVE_SYSTEM_HEADER_DIR
"/finclude/",
10785 const char *path
= find_a_file (&include_prefixes
, argv
[1], R_OK
, false);
10787 result
= concat (argv
[0], path
, NULL
);
10790 path
= find_a_file (&prefixes
, argv
[1], R_OK
, false);
10792 result
= concat (argv
[0], path
, NULL
);
10795 path_prefix_reset (&prefixes
);
10799 /* If any character in ORIG fits QUOTE_P (_, P), reallocate the string
10800 so as to precede every one of them with a backslash. Return the
10801 original string or the reallocated one. */
10803 static inline char *
10804 quote_string (char *orig
, bool (*quote_p
)(char, void *), void *p
)
10806 int len
, number_of_space
= 0;
10808 for (len
= 0; orig
[len
]; len
++)
10809 if (quote_p (orig
[len
], p
))
10812 if (number_of_space
)
10814 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
10816 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
10818 if (quote_p (orig
[j
], p
))
10819 new_spec
[k
++] = '\\';
10820 new_spec
[k
] = orig
[j
];
10829 /* Return true iff C is any of the characters convert_white_space
10833 whitespace_to_convert_p (char c
, void *)
10835 return (c
== ' ' || c
== '\t');
10838 /* Insert backslash before spaces in ORIG (usually a file path), to
10839 avoid being broken by spec parser.
10841 This function is needed as do_spec_1 treats white space (' ' and '\t')
10842 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
10843 the file name should be treated as a single argument rather than being
10844 broken into multiple. Solution is to insert '\\' before the space in a
10847 This function converts and only converts all occurrence of ' '
10848 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
10850 "a b" -> "a\\ \\ b"
10852 "a\\ b" -> "a\\\\ b"
10854 orig: input null-terminating string that was allocated by xalloc. The
10855 memory it points to might be freed in this function. Behavior undefined
10856 if ORIG wasn't xalloced or was freed already at entry.
10858 Return: ORIG if no conversion needed. Otherwise a newly allocated string
10859 that was converted from ORIG. */
10862 convert_white_space (char *orig
)
10864 return quote_string (orig
, whitespace_to_convert_p
, NULL
);
10867 /* Return true iff C matches any of the spec active characters. */
10869 quote_spec_char_p (char c
, void *)
10886 /* Like convert_white_space, but deactivate all active spec chars by
10889 static inline char *
10890 quote_spec (char *orig
)
10892 return quote_string (orig
, quote_spec_char_p
, NULL
);
10895 /* Like quote_spec, but also turn an empty string into the spec for an
10898 static inline char *
10899 quote_spec_arg (char *orig
)
10904 return xstrdup ("%\"");
10907 return quote_spec (orig
);
10910 /* Restore all state within gcc.c to the initial state, so that the driver
10911 code can be safely re-run in-process.
10913 Many const char * variables are referenced by static specs (see
10914 INIT_STATIC_SPEC above). These variables are restored to their default
10915 values by a simple loop over the static specs.
10917 For other variables, we directly restore them all to their initial
10918 values (often implicitly 0).
10920 Free the various obstacks in this file, along with "opts_obstack"
10923 This function also restores any environment variables that were changed. */
10926 driver::finalize ()
10929 diagnostic_finish (global_dc
);
10932 at_file_supplied
= 0;
10933 print_help_list
= 0;
10935 verbose_only_flag
= 0;
10936 print_subprocess_help
= 0;
10938 report_times_to_file
= NULL
;
10939 target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
10940 target_system_root_changed
= 0;
10941 target_sysroot_suffix
= 0;
10942 target_sysroot_hdrs_suffix
= 0;
10943 save_temps_flag
= SAVE_TEMPS_NONE
;
10944 save_temps_overrides_dumpdir
= false;
10945 dumpdir_trailing_dash_added
= false;
10948 free (dumpbase_ext
);
10950 dumpdir
= dumpbase
= dumpbase_ext
= outbase
= NULL
;
10951 dumpdir_length
= outbase_length
= 0;
10952 spec_machine
= DEFAULT_TARGET_MACHINE
;
10953 greatest_status
= 1;
10955 obstack_free (&obstack
, NULL
);
10956 obstack_free (&opts_obstack
, NULL
); /* in opts.c */
10957 obstack_free (&collect_obstack
, NULL
);
10959 link_command_spec
= LINK_COMMAND_SPEC
;
10961 obstack_free (&multilib_obstack
, NULL
);
10963 user_specs_head
= NULL
;
10964 user_specs_tail
= NULL
;
10966 /* Within the "compilers" vec, the fields "suffix" and "spec" were
10967 statically allocated for the default compilers, but dynamically
10968 allocated for additional compilers. Delete them for the latter. */
10969 for (int i
= n_default_compilers
; i
< n_compilers
; i
++)
10971 free (const_cast <char *> (compilers
[i
].suffix
));
10972 free (const_cast <char *> (compilers
[i
].spec
));
10974 XDELETEVEC (compilers
);
10978 linker_options
.truncate (0);
10979 assembler_options
.truncate (0);
10980 preprocessor_options
.truncate (0);
10982 path_prefix_reset (&exec_prefixes
);
10983 path_prefix_reset (&startfile_prefixes
);
10984 path_prefix_reset (&include_prefixes
);
10986 machine_suffix
= 0;
10987 just_machine_suffix
= 0;
10988 gcc_exec_prefix
= 0;
10989 gcc_libexec_prefix
= 0;
10990 set_static_spec_shared (&md_exec_prefix
, MD_EXEC_PREFIX
);
10991 set_static_spec_shared (&md_startfile_prefix
, MD_STARTFILE_PREFIX
);
10992 set_static_spec_shared (&md_startfile_prefix_1
, MD_STARTFILE_PREFIX_1
);
10994 multilib_os_dir
= 0;
10997 /* Free any specs dynamically-allocated by set_spec.
10998 These will be at the head of the list, before the
10999 statically-allocated ones. */
11002 while (specs
!= static_specs
)
11004 spec_list
*next
= specs
->next
;
11005 free (const_cast <char *> (specs
->name
));
11011 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
11013 spec_list
*sl
= &static_specs
[i
];
11016 free (const_cast <char *> (*(sl
->ptr_spec
)));
11017 sl
->alloc_p
= false;
11019 *(sl
->ptr_spec
) = sl
->default_ptr
;
11022 extra_specs
= NULL
;
11025 processing_spec_function
= 0;
11033 execution_count
= 0;
11036 temp_filename
= NULL
;
11037 temp_filename_length
= 0;
11038 always_delete_queue
= NULL
;
11039 failure_delete_queue
= NULL
;
11041 XDELETEVEC (switches
);
11044 n_switches_alloc
= 0;
11047 compare_debug_second
= 0;
11048 compare_debug_opt
= NULL
;
11049 for (int i
= 0; i
< 2; i
++)
11051 switches_debug_check
[i
] = NULL
;
11052 n_switches_debug_check
[i
] = 0;
11053 n_switches_alloc_debug_check
[i
] = 0;
11054 debug_check_temp_file
[i
] = NULL
;
11057 XDELETEVEC (infiles
);
11060 n_infiles_alloc
= 0;
11062 combine_inputs
= false;
11063 added_libraries
= 0;
11064 XDELETEVEC (outfiles
);
11067 last_language_n_infiles
= 0;
11068 gcc_input_filename
= NULL
;
11069 input_file_number
= 0;
11070 input_filename_length
= 0;
11071 basename_length
= 0;
11072 suffixed_basename_length
= 0;
11073 input_basename
= NULL
;
11074 input_suffix
= NULL
;
11075 /* We don't need to purge "input_stat", just to unset "input_stat_set". */
11076 input_stat_set
= 0;
11077 input_file_compiler
= NULL
;
11079 delete_this_arg
= 0;
11080 this_is_output_file
= 0;
11081 this_is_library_file
= 0;
11082 this_is_linker_script
= 0;
11083 input_from_pipe
= 0;
11084 suffix_subst
= NULL
;
11089 used_arg
.finalize ();
11093 Targets can provide configure-time default options in
11094 OPTION_DEFAULT_SPECS. The jit needs to access these, but
11095 they are expressed in the spec language.
11097 Run just enough of the driver to be able to expand these
11098 specs, and then call the callback CB on each
11099 such option. The options strings are *without* a leading
11100 '-' character e.g. ("march=x86-64"). Finally, clean up. */
11103 driver_get_configure_time_options (void (*cb
) (const char *option
,
11109 obstack_init (&obstack
);
11110 init_opts_obstack ();
11113 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
11114 do_option_spec (option_default_specs
[i
].name
,
11115 option_default_specs
[i
].spec
);
11117 for (i
= 0; (int) i
< n_switches
; i
++)
11119 gcc_assert (switches
[i
].part1
);
11120 (*cb
) (switches
[i
].part1
, user_data
);
11123 obstack_free (&opts_obstack
, NULL
);
11124 obstack_free (&obstack
, NULL
);