1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987-2021 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 #if OFFLOAD_DEFAULTED
323 /* Set to true if -foffload has not been used and offload_targets
324 is set to the configured in default. */
325 static bool offload_targets_default
;
328 /* Nonzero if cross-compiling.
329 When -b is used, the value comes from the `specs' file. */
331 #ifdef CROSS_DIRECTORY_STRUCTURE
332 static const char *cross_compile
= "1";
334 static const char *cross_compile
= "0";
337 /* Greatest exit code of sub-processes that has been encountered up to
339 static int greatest_status
= 1;
341 /* This is the obstack which we use to allocate many strings. */
343 static struct obstack obstack
;
345 /* This is the obstack to build an environment variable to pass to
346 collect2 that describes all of the relevant switches of what to
347 pass the compiler in building the list of pointers to constructors
350 static struct obstack collect_obstack
;
352 /* Forward declaration for prototypes. */
356 static void init_spec (void);
357 static void store_arg (const char *, int, int);
358 static void insert_wrapper (const char *);
359 static char *load_specs (const char *);
360 static void read_specs (const char *, bool, bool);
361 static void set_spec (const char *, const char *, bool);
362 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
363 static char *build_search_list (const struct path_prefix
*, const char *,
365 static void xputenv (const char *);
366 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
368 static int access_check (const char *, int);
369 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
370 static void add_prefix (struct path_prefix
*, const char *, const char *,
372 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
373 const char *, int, int, int);
374 static char *skip_whitespace (char *);
375 static void delete_if_ordinary (const char *);
376 static void delete_temp_files (void);
377 static void delete_failure_queue (void);
378 static void clear_failure_queue (void);
379 static int check_live_switch (int, int);
380 static const char *handle_braces (const char *);
381 static inline bool input_suffix_matches (const char *, const char *);
382 static inline bool switch_matches (const char *, const char *, int);
383 static inline void mark_matching_switches (const char *, const char *, int);
384 static inline void process_marked_switches (void);
385 static const char *process_brace_body (const char *, const char *, const char *, int, int);
386 static const struct spec_function
*lookup_spec_function (const char *);
387 static const char *eval_spec_function (const char *, const char *, const char *);
388 static const char *handle_spec_function (const char *, bool *, const char *);
389 static char *save_string (const char *, int);
390 static void set_collect_gcc_options (void);
391 static int do_spec_1 (const char *, int, const char *);
392 static int do_spec_2 (const char *, const char *);
393 static void do_option_spec (const char *, const char *);
394 static void do_self_spec (const char *);
395 static const char *find_file (const char *);
396 static int is_directory (const char *, bool);
397 static const char *validate_switches (const char *, bool, bool);
398 static void validate_all_switches (void);
399 static inline void validate_switches_from_spec (const char *, bool);
400 static void give_switch (int, int);
401 static int default_arg (const char *, int);
402 static void set_multilib_dir (void);
403 static void print_multilib_info (void);
404 static void display_help (void);
405 static void add_preprocessor_option (const char *, int);
406 static void add_assembler_option (const char *, int);
407 static void add_linker_option (const char *, int);
408 static void process_command (unsigned int, struct cl_decoded_option
*);
409 static int execute (void);
410 static void alloc_args (void);
411 static void clear_args (void);
412 static void fatal_signal (int);
413 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
414 static void init_gcc_specs (struct obstack
*, const char *, const char *,
417 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
418 static const char *convert_filename (const char *, int, int);
421 static void try_generate_repro (const char **argv
);
422 static const char *getenv_spec_function (int, const char **);
423 static const char *if_exists_spec_function (int, const char **);
424 static const char *if_exists_else_spec_function (int, const char **);
425 static const char *if_exists_then_else_spec_function (int, const char **);
426 static const char *sanitize_spec_function (int, const char **);
427 static const char *replace_outfile_spec_function (int, const char **);
428 static const char *remove_outfile_spec_function (int, const char **);
429 static const char *version_compare_spec_function (int, const char **);
430 static const char *include_spec_function (int, const char **);
431 static const char *find_file_spec_function (int, const char **);
432 static const char *find_plugindir_spec_function (int, const char **);
433 static const char *print_asm_header_spec_function (int, const char **);
434 static const char *compare_debug_dump_opt_spec_function (int, const char **);
435 static const char *compare_debug_self_opt_spec_function (int, const char **);
436 static const char *pass_through_libs_spec_func (int, const char **);
437 static const char *dumps_spec_func (int, const char **);
438 static const char *greater_than_spec_func (int, const char **);
439 static const char *debug_level_greater_than_spec_func (int, const char **);
440 static const char *dwarf_version_greater_than_spec_func (int, const char **);
441 static const char *find_fortran_preinclude_file (int, const char **);
442 static char *convert_white_space (char *);
443 static char *quote_spec (char *);
444 static char *quote_spec_arg (char *);
445 static bool not_actual_file_p (const char *);
448 /* The Specs Language
450 Specs are strings containing lines, each of which (if not blank)
451 is made up of a program name, and arguments separated by spaces.
452 The program name must be exact and start from root, since no path
453 is searched and it is unreliable to depend on the current working directory.
454 Redirection of input or output is not supported; the subprograms must
455 accept filenames saying what files to read and write.
457 In addition, the specs can contain %-sequences to substitute variable text
458 or for conditional text. Here is a table of all defined %-sequences.
459 Note that spaces are not generated automatically around the results of
460 expanding these sequences; therefore, you can concatenate them together
461 or with constant text in a single argument.
463 %% substitute one % into the program name or argument.
464 %" substitute an empty argument.
465 %i substitute the name of the input file being processed.
466 %b substitute the basename for outputs related with the input file
467 being processed. This is often a substring of the input file name,
468 up to (and not including) the last period but, unless %w is active,
469 it is affected by the directory selected by -save-temps=*, by
470 -dumpdir, and, in case of multiple compilations, even by -dumpbase
471 and -dumpbase-ext and, in case of linking, by the linker output
472 name. When %w is active, it derives the main output name only from
473 the input file base name; when it is not, it names aux/dump output
475 %B same as %b, but include the input file suffix (text after the last
478 substitute a file name that has suffix SUFFIX and is chosen
479 once per compilation, and mark the argument a la %d. To reduce
480 exposure to denial-of-service attacks, the file name is now
481 chosen in a way that is hard to predict even when previously
482 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
483 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
484 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
485 had been pre-processed. Previously, %g was simply substituted
486 with a file name chosen once per compilation, without regard
487 to any appended suffix (which was therefore treated just like
488 ordinary text), making such attacks more likely to succeed.
490 like %g, but if -pipe is in effect, expands simply to "-".
492 like %g, but if -pipe is in effect, expands to nothing. (We have both
493 %| and %m to accommodate differences between system assemblers; see
494 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
496 like %g, but generates a new temporary file name even if %uSUFFIX
499 substitutes the last file name generated with %uSUFFIX, generating a
500 new one if there is no such last file name. In the absence of any
501 %uSUFFIX, this is just like %gSUFFIX, except they don't share
502 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
503 would involve the generation of two distinct file names, one
504 for each `%g.s' and another for each `%U.s'. Previously, %U was
505 simply substituted with a file name chosen for the previous %u,
506 without regard to any appended suffix.
508 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
509 writable, and if save-temps is off; otherwise, substitute the name
510 of a temporary file, just like %u. This temporary file is not
511 meant for communication between processes, but rather as a junk
514 substitutes .SUFFIX for the suffixes of a matched switch's args when
515 it is subsequently output with %*. SUFFIX is terminated by the next
517 %d marks the argument containing or following the %d as a
518 temporary file name, so that file will be deleted if GCC exits
519 successfully. Unlike %g, this contributes no text to the argument.
520 %w marks the argument containing or following the %w as the
521 "output file" of this compilation. This puts the argument
522 into the sequence of arguments that %o will substitute later.
523 %V indicates that this compilation produces no "output file".
525 like %{...} but marks the last argument supplied within as a file
526 to be deleted on failure.
528 like %{...} but puts the result into a FILE and substitutes @FILE
529 if an @file argument has been supplied.
530 %o substitutes the names of all the output files, with spaces
531 automatically placed around them. You should write spaces
532 around the %o as well or the results are undefined.
533 %o is for use in the specs for running the linker.
534 Input files whose names have no recognized suffix are not compiled
535 at all, but they are included among the output files, so they will
537 %O substitutes the suffix for object files. Note that this is
538 handled specially when it immediately follows %g, %u, or %U
539 (with or without a suffix argument) because of the need for
540 those to form complete file names. The handling is such that
541 %O is treated exactly as if it had already been substituted,
542 except that %g, %u, and %U do not currently support additional
543 SUFFIX characters following %O as they would following, for
545 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
546 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
547 and -B options) and -imultilib as necessary.
548 %s current argument is the name of a library or startup file of some sort.
549 Search for that file in a standard list of directories
550 and substitute the full name found.
551 %T current argument is the name of a linker script.
552 Search for that file in the current list of directories to scan for
553 libraries. If the file is located, insert a --script option into the
554 command line followed by the full path name found. If the file is
555 not found then generate an error message.
556 Note: the current working directory is not searched.
557 %eSTR Print STR as an error message. STR is terminated by a newline.
558 Use this when inconsistent options are detected.
559 %nSTR Print STR as a notice. STR is terminated by a newline.
560 %x{OPTION} Accumulate an option for %X.
561 %X Output the accumulated linker options specified by compilations.
562 %Y Output the accumulated assembler options specified by compilations.
563 %Z Output the accumulated preprocessor options specified by compilations.
564 %a process ASM_SPEC as a spec.
565 This allows config.h to specify part of the spec for running as.
566 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
567 used here. This can be used to run a post-processor after the
568 assembler has done its job.
569 %D Dump out a -L option for each directory in startfile_prefixes.
570 If multilib_dir is set, extra entries are generated with it affixed.
571 %l process LINK_SPEC as a spec.
572 %L process LIB_SPEC as a spec.
573 %M Output multilib_os_dir.
574 %G process LIBGCC_SPEC as a spec.
575 %R Output the concatenation of target_system_root and
576 target_sysroot_suffix.
577 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
578 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
579 %C process CPP_SPEC as a spec.
580 %1 process CC1_SPEC as a spec.
581 %2 process CC1PLUS_SPEC as a spec.
582 %* substitute the variable part of a matched option. (See below.)
583 Note that each comma in the substituted string is replaced by
584 a single space. A space is appended after the last substition
585 unless there is more text in current sequence.
586 %<S remove all occurrences of -S from the command line.
587 Note - this command is position dependent. % commands in the
588 spec string before this one will see -S, % commands in the
589 spec string after this one will not.
590 %>S Similar to "%<S", but keep it in the GCC command line.
591 %<S* remove all occurrences of all switches beginning with -S from the
594 Call the named function FUNCTION, passing it ARGS. ARGS is
595 first processed as a nested spec string, then split into an
596 argument vector in the usual fashion. The function returns
597 a string which is processed as if it had appeared literally
598 as part of the current spec.
599 %{S} substitutes the -S switch, if that switch was given to GCC.
600 If that switch was not specified, this substitutes nothing.
601 Here S is a metasyntactic variable.
602 %{S*} substitutes all the switches specified to GCC whose names start
603 with -S. This is used for -o, -I, etc; switches that take
604 arguments. GCC considers `-o foo' as being one switch whose
605 name starts with `o'. %{o*} would substitute this text,
606 including the space; thus, two arguments would be generated.
607 %{S*&T*} likewise, but preserve order of S and T options (the order
608 of S and T in the spec is not significant). Can be any number
609 of ampersand-separated variables; for each the wild card is
610 optional. Useful for CPP as %{D*&U*&A*}.
612 %{S:X} substitutes X, if the -S switch was given to GCC.
613 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
614 %{S*:X} substitutes X if one or more switches whose names start
615 with -S was given to GCC. Normally X is substituted only
616 once, no matter how many such switches appeared. However,
617 if %* appears somewhere in X, then X will be substituted
618 once for each matching switch, with the %* replaced by the
619 part of that switch that matched the '*'. A space will be
620 appended after the last substition unless there is more
621 text in current sequence.
622 %{.S:X} substitutes X, if processing a file with suffix S.
623 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
624 %{,S:X} substitutes X, if processing a file which will use spec S.
625 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
627 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
628 combined with '!', '.', ',', and '*' as above binding stronger
630 If %* appears in X, all of the alternatives must be starred, and
631 only the first matching alternative is substituted.
632 %{%:function(args):X}
633 Call function named FUNCTION with args ARGS. If the function
634 returns non-NULL, then X is substituted, if it returns
635 NULL, it isn't substituted.
636 %{S:X; if S was given to GCC, substitutes X;
637 T:Y; else if T was given to GCC, substitutes Y;
638 :D} else substitutes D. There can be as many clauses as you need.
639 This may be combined with '.', '!', ',', '|', and '*' as above.
641 %(Spec) processes a specification defined in a specs file as *Spec:
643 The switch matching text S in a %{S}, %{S:X}, or similar construct can use
644 a backslash to ignore the special meaning of the character following it,
645 thus allowing literal matching of a character that is otherwise specially
646 treated. For example, %{std=iso9899\:1999:X} substitutes X if the
647 -std=iso9899:1999 option is given.
649 The conditional text X in a %{S:X} or similar construct may contain
650 other nested % constructs or spaces, or even newlines. They are
651 processed as usual, as described above. Trailing white space in X is
652 ignored. White space may also appear anywhere on the left side of the
653 colon in these constructs, except between . or * and the corresponding
656 The -O, -f, -g, -m, and -W switches are handled specifically in these
657 constructs. If another value of -O or the negated form of a -f, -m, or
658 -W switch is found later in the command line, the earlier switch
659 value is ignored, except with {S*} where S is just one letter; this
660 passes all matching options.
662 The character | at the beginning of the predicate text is used to indicate
663 that a command should be piped to the following command, but only if -pipe
666 Note that it is built into GCC which switches take arguments and which
667 do not. You might think it would be useful to generalize this to
668 allow each compiler's spec to say which switches take arguments. But
669 this cannot be done in a consistent fashion. GCC cannot even decide
670 which input files have been specified without knowing which switches
671 take arguments, and it must know which input files to compile in order
672 to tell which compilers to run.
674 GCC also knows implicitly that arguments starting in `-l' are to be
675 treated as compiler output files, and passed to the linker in their
676 proper position among the other output files. */
678 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
680 /* config.h can define ASM_SPEC to provide extra args to the assembler
681 or extra switch-translations. */
686 /* config.h can define ASM_FINAL_SPEC to run a post processor after
687 the assembler has run. */
688 #ifndef ASM_FINAL_SPEC
689 #define ASM_FINAL_SPEC \
691 objcopy --extract-dwo \
692 %{c:%{o*:%*}%{!o*:%w%b%O}}%{!c:%U%O} \
694 objcopy --strip-dwo \
695 %{c:%{o*:%*}%{!o*:%w%b%O}}%{!c:%U%O} \
699 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
700 or extra switch-translations. */
705 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
706 or extra switch-translations. */
711 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
712 or extra switch-translations. */
714 #define CC1PLUS_SPEC ""
717 /* config.h can define LINK_SPEC to provide extra args to the linker
718 or extra switch-translations. */
723 /* config.h can define LIB_SPEC to override the default libraries. */
725 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
728 /* When using -fsplit-stack we need to wrap pthread_create, in order
729 to initialize the stack guard. We always use wrapping, rather than
730 shared library ordering, and we keep the wrapper function in
731 libgcc. This is not yet a real spec, though it could become one;
732 it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
733 only works with GNU ld and gold. */
734 #ifdef HAVE_GOLD_NON_DEFAULT_SPLIT_STACK
735 #define STACK_SPLIT_SPEC " %{fsplit-stack: -fuse-ld=gold --wrap=pthread_create}"
737 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
741 #define STATIC_LIBASAN_LIBS \
742 " %{static-libasan|static:%:include(libsanitizer.spec)%(link_libasan)}"
743 #ifdef LIBASAN_EARLY_SPEC
744 #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
745 #elif defined(HAVE_LD_STATIC_DYNAMIC)
746 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
747 "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
750 #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
754 #ifndef LIBASAN_EARLY_SPEC
755 #define LIBASAN_EARLY_SPEC ""
758 #ifndef LIBHWASAN_SPEC
759 #define STATIC_LIBHWASAN_LIBS \
760 " %{static-libhwasan|static:%:include(libsanitizer.spec)%(link_libhwasan)}"
761 #ifdef LIBHWASAN_EARLY_SPEC
762 #define LIBHWASAN_SPEC STATIC_LIBHWASAN_LIBS
763 #elif defined(HAVE_LD_STATIC_DYNAMIC)
764 #define LIBHWASAN_SPEC "%{static-libhwasan:" LD_STATIC_OPTION \
765 "} -lhwasan %{static-libhwasan:" LD_DYNAMIC_OPTION "}" \
766 STATIC_LIBHWASAN_LIBS
768 #define LIBHWASAN_SPEC "-lhwasan" STATIC_LIBHWASAN_LIBS
772 #ifndef LIBHWASAN_EARLY_SPEC
773 #define LIBHWASAN_EARLY_SPEC ""
777 #define STATIC_LIBTSAN_LIBS \
778 " %{static-libtsan|static:%:include(libsanitizer.spec)%(link_libtsan)}"
779 #ifdef LIBTSAN_EARLY_SPEC
780 #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
781 #elif defined(HAVE_LD_STATIC_DYNAMIC)
782 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
783 "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
786 #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
790 #ifndef LIBTSAN_EARLY_SPEC
791 #define LIBTSAN_EARLY_SPEC ""
795 #define STATIC_LIBLSAN_LIBS \
796 " %{static-liblsan|static:%:include(libsanitizer.spec)%(link_liblsan)}"
797 #ifdef LIBLSAN_EARLY_SPEC
798 #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
799 #elif defined(HAVE_LD_STATIC_DYNAMIC)
800 #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
801 "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
804 #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
808 #ifndef LIBLSAN_EARLY_SPEC
809 #define LIBLSAN_EARLY_SPEC ""
812 #ifndef LIBUBSAN_SPEC
813 #define STATIC_LIBUBSAN_LIBS \
814 " %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}"
815 #ifdef HAVE_LD_STATIC_DYNAMIC
816 #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
817 "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
820 #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
824 /* Linker options for compressed debug sections. */
825 #if HAVE_LD_COMPRESS_DEBUG == 0
826 /* No linker support. */
827 #define LINK_COMPRESS_DEBUG_SPEC \
828 " %{gz*:%e-gz is not supported in this configuration} "
829 #elif HAVE_LD_COMPRESS_DEBUG == 1
830 /* GNU style on input, GNU ld options. Reject, not useful. */
831 #define LINK_COMPRESS_DEBUG_SPEC \
832 " %{gz*:%e-gz is not supported in this configuration} "
833 #elif HAVE_LD_COMPRESS_DEBUG == 2
834 /* GNU style, GNU gold options. */
835 #define LINK_COMPRESS_DEBUG_SPEC \
836 " %{gz|gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
837 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
838 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
839 #elif HAVE_LD_COMPRESS_DEBUG == 3
840 /* ELF gABI style. */
841 #define LINK_COMPRESS_DEBUG_SPEC \
842 " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
843 " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
844 " %{gz=zlib-gnu:" LD_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
846 #error Unknown value for HAVE_LD_COMPRESS_DEBUG.
849 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
852 #if defined(REAL_LIBGCC_SPEC)
853 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
854 #elif defined(LINK_LIBGCC_SPECIAL_1)
855 /* Have gcc do the search for libgcc.a. */
856 #define LIBGCC_SPEC "libgcc.a%s"
858 #define LIBGCC_SPEC "-lgcc"
862 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
863 #ifndef STARTFILE_SPEC
864 #define STARTFILE_SPEC \
865 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
868 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
870 #define ENDFILE_SPEC ""
874 #define LINKER_NAME "collect2"
877 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
878 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
883 /* Assembler options for compressed debug sections. */
884 #if HAVE_LD_COMPRESS_DEBUG < 2
885 /* Reject if the linker cannot write compressed debug sections. */
886 #define ASM_COMPRESS_DEBUG_SPEC \
887 " %{gz*:%e-gz is not supported in this configuration} "
888 #else /* HAVE_LD_COMPRESS_DEBUG >= 2 */
889 #if HAVE_AS_COMPRESS_DEBUG == 0
890 /* No assembler support. Ignore silently. */
891 #define ASM_COMPRESS_DEBUG_SPEC \
893 #elif HAVE_AS_COMPRESS_DEBUG == 1
894 /* GNU style, GNU as options. */
895 #define ASM_COMPRESS_DEBUG_SPEC \
896 " %{gz|gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "}" \
897 " %{gz=none:" AS_NO_COMPRESS_DEBUG_OPTION "}" \
898 " %{gz=zlib:%e-gz=zlib is not supported in this configuration} "
899 #elif HAVE_AS_COMPRESS_DEBUG == 2
900 /* ELF gABI style. */
901 #define ASM_COMPRESS_DEBUG_SPEC \
902 " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
903 " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
904 " %{gz=zlib-gnu:" AS_COMPRESS_DEBUG_OPTION "=zlib-gnu} "
906 #error Unknown value for HAVE_AS_COMPRESS_DEBUG.
908 #endif /* HAVE_LD_COMPRESS_DEBUG >= 2 */
910 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
911 to the assembler, when compiling assembly sources only. */
912 #ifndef ASM_DEBUG_SPEC
913 # if defined(HAVE_AS_GDWARF_5_DEBUG_FLAG) && defined(HAVE_AS_WORKING_DWARF_N_FLAG)
914 /* If --gdwarf-N is supported and as can handle even compiler generated
915 .debug_line with it, supply --gdwarf-N in ASM_DEBUG_OPTION_SPEC rather
916 than in ASM_DEBUG_SPEC, so that it applies to both .s and .c etc.
918 # define ASM_DEBUG_DWARF_OPTION ""
919 # elif defined(HAVE_AS_GDWARF_5_DEBUG_FLAG)
920 # define ASM_DEBUG_DWARF_OPTION "%{%:dwarf-version-gt(4):--gdwarf-5;" \
921 "%:dwarf-version-gt(3):--gdwarf-4;" \
922 "%:dwarf-version-gt(2):--gdwarf-3;" \
925 # define ASM_DEBUG_DWARF_OPTION "--gdwarf2"
927 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
928 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
929 # define ASM_DEBUG_SPEC \
930 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
931 ? "%{%:debug-level-gt(0):" \
932 "%{gdwarf*:" ASM_DEBUG_DWARF_OPTION "};" \
933 ":%{g*:--gstabs}}" ASM_MAP \
934 : "%{%:debug-level-gt(0):" \
935 "%{gstabs*:--gstabs;" \
936 ":%{g*:" ASM_DEBUG_DWARF_OPTION "}}}" ASM_MAP)
938 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
939 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):--gstabs}}" ASM_MAP
941 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
942 # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):" \
943 ASM_DEBUG_DWARF_OPTION "}}" ASM_MAP
947 #ifndef ASM_DEBUG_SPEC
948 # define ASM_DEBUG_SPEC ""
951 /* Define ASM_DEBUG_OPTION_SPEC to be a spec suitable for translating '-g'
952 to the assembler when compiling all sources. */
953 #ifndef ASM_DEBUG_OPTION_SPEC
954 # if defined(HAVE_AS_GDWARF_5_DEBUG_FLAG) && defined(HAVE_AS_WORKING_DWARF_N_FLAG)
955 # define ASM_DEBUG_OPTION_DWARF_OPT \
956 "%{%:dwarf-version-gt(4):--gdwarf-5 ;" \
957 "%:dwarf-version-gt(3):--gdwarf-4 ;" \
958 "%:dwarf-version-gt(2):--gdwarf-3 ;" \
960 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO)
961 # define ASM_DEBUG_OPTION_SPEC \
962 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
963 ? "%{%:debug-level-gt(0):" \
964 "%{gdwarf*:" ASM_DEBUG_OPTION_DWARF_OPT "}}" \
965 : "%{%:debug-level-gt(0):" \
966 "%{!gstabs*:%{g*:" ASM_DEBUG_OPTION_DWARF_OPT "}}}")
967 # elif defined(DWARF2_DEBUGGING_INFO)
968 # define ASM_DEBUG_OPTION_SPEC "%{g*:%{%:debug-level-gt(0):" \
969 ASM_DEBUG_OPTION_DWARF_OPT "}}"
973 #ifndef ASM_DEBUG_OPTION_SPEC
974 # define ASM_DEBUG_OPTION_SPEC ""
977 /* Here is the spec for running the linker, after compiling all files. */
979 /* This is overridable by the target in case they need to specify the
980 -lgcc and -lc order specially, yet not require them to override all
981 of LINK_COMMAND_SPEC. */
982 #ifndef LINK_GCC_C_SEQUENCE_SPEC
983 #define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}"
986 #ifndef LINK_SSP_SPEC
987 #ifdef TARGET_LIBC_PROVIDES_SSP
988 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
989 "|fstack-protector-strong|fstack-protector-explicit:}"
991 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
992 "|fstack-protector-strong|fstack-protector-explicit" \
993 ":-lssp_nonshared -lssp}"
997 #ifdef ENABLE_DEFAULT_PIE
998 #define PIE_SPEC "!no-pie"
999 #define NO_FPIE1_SPEC "fno-pie"
1000 #define FPIE1_SPEC NO_FPIE1_SPEC ":;"
1001 #define NO_FPIE2_SPEC "fno-PIE"
1002 #define FPIE2_SPEC NO_FPIE2_SPEC ":;"
1003 #define NO_FPIE_SPEC NO_FPIE1_SPEC "|" NO_FPIE2_SPEC
1004 #define FPIE_SPEC NO_FPIE_SPEC ":;"
1005 #define NO_FPIC1_SPEC "fno-pic"
1006 #define FPIC1_SPEC NO_FPIC1_SPEC ":;"
1007 #define NO_FPIC2_SPEC "fno-PIC"
1008 #define FPIC2_SPEC NO_FPIC2_SPEC ":;"
1009 #define NO_FPIC_SPEC NO_FPIC1_SPEC "|" NO_FPIC2_SPEC
1010 #define FPIC_SPEC NO_FPIC_SPEC ":;"
1011 #define NO_FPIE1_AND_FPIC1_SPEC NO_FPIE1_SPEC "|" NO_FPIC1_SPEC
1012 #define FPIE1_OR_FPIC1_SPEC NO_FPIE1_AND_FPIC1_SPEC ":;"
1013 #define NO_FPIE2_AND_FPIC2_SPEC NO_FPIE2_SPEC "|" NO_FPIC2_SPEC
1014 #define FPIE2_OR_FPIC2_SPEC NO_FPIE2_AND_FPIC2_SPEC ":;"
1015 #define NO_FPIE_AND_FPIC_SPEC NO_FPIE_SPEC "|" NO_FPIC_SPEC
1016 #define FPIE_OR_FPIC_SPEC NO_FPIE_AND_FPIC_SPEC ":;"
1018 #define PIE_SPEC "pie"
1019 #define FPIE1_SPEC "fpie"
1020 #define NO_FPIE1_SPEC FPIE1_SPEC ":;"
1021 #define FPIE2_SPEC "fPIE"
1022 #define NO_FPIE2_SPEC FPIE2_SPEC ":;"
1023 #define FPIE_SPEC FPIE1_SPEC "|" FPIE2_SPEC
1024 #define NO_FPIE_SPEC FPIE_SPEC ":;"
1025 #define FPIC1_SPEC "fpic"
1026 #define NO_FPIC1_SPEC FPIC1_SPEC ":;"
1027 #define FPIC2_SPEC "fPIC"
1028 #define NO_FPIC2_SPEC FPIC2_SPEC ":;"
1029 #define FPIC_SPEC FPIC1_SPEC "|" FPIC2_SPEC
1030 #define NO_FPIC_SPEC FPIC_SPEC ":;"
1031 #define FPIE1_OR_FPIC1_SPEC FPIE1_SPEC "|" FPIC1_SPEC
1032 #define NO_FPIE1_AND_FPIC1_SPEC FPIE1_OR_FPIC1_SPEC ":;"
1033 #define FPIE2_OR_FPIC2_SPEC FPIE2_SPEC "|" FPIC2_SPEC
1034 #define NO_FPIE2_AND_FPIC2_SPEC FPIE1_OR_FPIC2_SPEC ":;"
1035 #define FPIE_OR_FPIC_SPEC FPIE_SPEC "|" FPIC_SPEC
1036 #define NO_FPIE_AND_FPIC_SPEC FPIE_OR_FPIC_SPEC ":;"
1039 #ifndef LINK_PIE_SPEC
1042 #define LD_PIE_SPEC "-pie"
1045 #define LD_PIE_SPEC ""
1047 #define LINK_PIE_SPEC "%{static|shared|r:;" PIE_SPEC ":" LD_PIE_SPEC "} "
1050 #ifndef LINK_BUILDID_SPEC
1051 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
1052 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
1056 #ifndef LTO_PLUGIN_SPEC
1057 #define LTO_PLUGIN_SPEC ""
1060 /* Conditional to test whether the LTO plugin is used or not.
1061 FIXME: For slim LTO we will need to enable plugin unconditionally. This
1062 still cause problems with PLUGIN_LD != LD and when plugin is built but
1063 not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
1064 plugin only when LTO is enabled. We still honor explicit
1065 -fuse-linker-plugin if the linker used understands -plugin. */
1067 /* The linker has some plugin support. */
1068 #if HAVE_LTO_PLUGIN > 0
1069 /* The linker used has full plugin support, use LTO plugin by default. */
1070 #if HAVE_LTO_PLUGIN == 2
1071 #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
1072 #define PLUGIN_COND_CLOSE "}"
1074 /* The linker used has limited plugin support, use LTO plugin with explicit
1075 -fuse-linker-plugin. */
1076 #define PLUGIN_COND "fuse-linker-plugin"
1077 #define PLUGIN_COND_CLOSE ""
1079 #define LINK_PLUGIN_SPEC \
1080 "%{" PLUGIN_COND": \
1081 -plugin %(linker_plugin_file) \
1082 -plugin-opt=%(lto_wrapper) \
1083 -plugin-opt=-fresolution=%u.res \
1084 " LTO_PLUGIN_SPEC "\
1085 %{flinker-output=*:-plugin-opt=-linker-output-known} \
1086 %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
1087 }" PLUGIN_COND_CLOSE
1089 /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
1090 #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
1091 %e-fuse-linker-plugin is not supported in this configuration}"
1094 /* Linker command line options for -fsanitize= early on the command line. */
1095 #ifndef SANITIZER_EARLY_SPEC
1096 #define SANITIZER_EARLY_SPEC "\
1097 %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
1098 %{%:sanitize(hwaddress):" LIBHWASAN_EARLY_SPEC "} \
1099 %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
1100 %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}}"
1103 /* Linker command line options for -fsanitize= late on the command line. */
1104 #ifndef SANITIZER_SPEC
1105 #define SANITIZER_SPEC "\
1106 %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
1107 %{static:%ecannot specify -static with -fsanitize=address}}\
1108 %{%:sanitize(hwaddress):" LIBHWASAN_SPEC "\
1109 %{static:%ecannot specify -static with -fsanitize=hwaddress}}\
1110 %{%:sanitize(thread):" LIBTSAN_SPEC "\
1111 %{static:%ecannot specify -static with -fsanitize=thread}}\
1112 %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
1113 %{%:sanitize(leak):" LIBLSAN_SPEC "}}}}"
1116 #ifndef POST_LINK_SPEC
1117 #define POST_LINK_SPEC ""
1120 /* This is the spec to use, once the code for creating the vtable
1121 verification runtime library, libvtv.so, has been created. Currently
1122 the vtable verification runtime functions are in libstdc++, so we use
1123 the spec just below this one. */
1124 #ifndef VTABLE_VERIFICATION_SPEC
1125 #if ENABLE_VTABLE_VERIFY
1126 #define VTABLE_VERIFICATION_SPEC "\
1127 %{!nostdlib:%{!r:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
1128 %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}}"
1130 #define VTABLE_VERIFICATION_SPEC "\
1131 %{fvtable-verify=none:} \
1132 %{fvtable-verify=std: \
1133 %e-fvtable-verify=std is not supported in this configuration} \
1134 %{fvtable-verify=preinit: \
1135 %e-fvtable-verify=preinit is not supported in this configuration}"
1139 /* -u* was put back because both BSD and SysV seem to support it. */
1140 /* %{static|no-pie|static-pie:} simply prevents an error message:
1141 1. If the target machine doesn't handle -static.
1142 2. If PIE isn't enabled by default.
1143 3. If the target machine doesn't handle -static-pie.
1145 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
1146 scripts which exist in user specified directories, or in standard
1148 /* We pass any -flto flags on to the linker, which is expected
1149 to understand them. In practice, this means it had better be collect2. */
1150 /* %{e*} includes -export-dynamic; see comment in common.opt. */
1151 #ifndef LINK_COMMAND_SPEC
1152 #define LINK_COMMAND_SPEC "\
1153 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
1156 "%{flto|flto=*:%<fcompare-debug*} \
1157 %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
1158 "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
1159 "%X %{o*} %{e*} %{N} %{n} %{r}\
1160 %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
1161 %{static|no-pie|static-pie:} %@{L*} %(mfwrap) %(link_libgcc) " \
1162 VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o "" \
1163 %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
1164 %:include(libgomp.spec)%(link_gomp)}\
1165 %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
1166 %(mflib) " STACK_SPLIT_SPEC "\
1167 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
1168 %{!nostdlib:%{!r:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}}\
1169 %{!nostdlib:%{!r:%{!nostartfiles:%E}}} %{T*} \n%(post_link) }}}}}}"
1172 #ifndef LINK_LIBGCC_SPEC
1173 /* Generate -L options for startfile prefix list. */
1174 # define LINK_LIBGCC_SPEC "%D"
1177 #ifndef STARTFILE_PREFIX_SPEC
1178 # define STARTFILE_PREFIX_SPEC ""
1181 #ifndef SYSROOT_SPEC
1182 # define SYSROOT_SPEC "--sysroot=%R"
1185 #ifndef SYSROOT_SUFFIX_SPEC
1186 # define SYSROOT_SUFFIX_SPEC ""
1189 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
1190 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
1193 static const char *asm_debug
= ASM_DEBUG_SPEC
;
1194 static const char *asm_debug_option
= ASM_DEBUG_OPTION_SPEC
;
1195 static const char *cpp_spec
= CPP_SPEC
;
1196 static const char *cc1_spec
= CC1_SPEC
;
1197 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
1198 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
1199 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
1200 static const char *asm_spec
= ASM_SPEC
;
1201 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
1202 static const char *link_spec
= LINK_SPEC
;
1203 static const char *lib_spec
= LIB_SPEC
;
1204 static const char *link_gomp_spec
= "";
1205 static const char *libgcc_spec
= LIBGCC_SPEC
;
1206 static const char *endfile_spec
= ENDFILE_SPEC
;
1207 static const char *startfile_spec
= STARTFILE_SPEC
;
1208 static const char *linker_name_spec
= LINKER_NAME
;
1209 static const char *linker_plugin_file_spec
= "";
1210 static const char *lto_wrapper_spec
= "";
1211 static const char *lto_gcc_spec
= "";
1212 static const char *post_link_spec
= POST_LINK_SPEC
;
1213 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
1214 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
1215 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
1216 static const char *sysroot_spec
= SYSROOT_SPEC
;
1217 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
1218 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
1219 static const char *self_spec
= "";
1221 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
1222 There should be no need to override these in target dependent files,
1223 but we need to copy them to the specs file so that newer versions
1224 of the GCC driver can correctly drive older tool chains with the
1225 appropriate -B options. */
1227 /* When cpplib handles traditional preprocessing, get rid of this, and
1228 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
1229 that we default the front end language better. */
1230 static const char *trad_capable_cpp
=
1231 "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
1233 /* We don't wrap .d files in %W{} since a missing .d file, and
1234 therefore no dependency entry, confuses make into thinking a .o
1235 file that happens to exist is up-to-date. */
1236 static const char *cpp_unique_options
=
1237 "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %@{I*&F*} %{P} %I\
1238 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
1239 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
1240 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
1241 %{Mmodules} %{Mno-modules}\
1242 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
1243 %{remap} %{%:debug-level-gt(2):-dD}\
1244 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1245 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
1248 /* This contains cpp options which are common with cc1_options and are passed
1249 only when preprocessing only to avoid duplication. We pass the cc1 spec
1250 options to the preprocessor so that it the cc1 spec may manipulate
1251 options used to set target flags. Those special target flags settings may
1252 in turn cause preprocessor symbols to be defined specially. */
1253 static const char *cpp_options
=
1254 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
1255 %{f*} %{g*:%{%:debug-level-gt(0):%{g*}\
1256 %{!fno-working-directory:-fworking-directory}}} %{O*}\
1257 %{undef} %{save-temps*:-fpch-preprocess}";
1259 /* Pass -d* flags, possibly modifying -dumpdir, -dumpbase et al.
1261 Make it easy for a language to override the argument for the
1262 %:dumps specs function call. */
1263 #define DUMPS_OPTIONS(EXTS) \
1264 "%<dumpdir %<dumpbase %<dumpbase-ext %{d*} %:dumps(" EXTS ")"
1266 /* This contains cpp options which are not passed when the preprocessor
1267 output will be used by another program. */
1268 static const char *cpp_debug_options
= DUMPS_OPTIONS ("");
1270 /* NB: This is shared amongst all front-ends, except for Ada. */
1271 static const char *cc1_options
=
1272 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
1273 %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1274 %1 %{!Q:-quiet} %(cpp_debug_options) %{m*} %{aux-info*}\
1275 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
1276 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
1277 %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
1278 %{-target-help:--target-help}\
1279 %{-version:--version}\
1280 %{-help=*:--help=%*}\
1281 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %w%b.s}}}\
1282 %{fsyntax-only:-o %j} %{-param*}\
1283 %{coverage:-fprofile-arcs -ftest-coverage}\
1284 %{fprofile-arcs|fprofile-generate*|coverage:\
1285 %{!fprofile-update=single:\
1286 %{pthread:-fprofile-update=prefer-atomic}}}";
1288 static const char *asm_options
=
1289 "%{-target-help:%:print-asm-header()} "
1291 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
1292 to the assembler equivalents. */
1293 "%{v} %{w:-W} %{I*} "
1295 "%(asm_debug_option)"
1296 ASM_COMPRESS_DEBUG_SPEC
1297 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
1299 static const char *invoke_as
=
1300 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1302 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1303 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
1307 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1308 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
1312 /* Some compilers have limits on line lengths, and the multilib_select
1313 and/or multilib_matches strings can be very long, so we build them at
1315 static struct obstack multilib_obstack
;
1316 static const char *multilib_select
;
1317 static const char *multilib_matches
;
1318 static const char *multilib_defaults
;
1319 static const char *multilib_exclusions
;
1320 static const char *multilib_reuse
;
1322 /* Check whether a particular argument is a default argument. */
1324 #ifndef MULTILIB_DEFAULTS
1325 #define MULTILIB_DEFAULTS { "" }
1328 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
1330 #ifndef DRIVER_SELF_SPECS
1331 #define DRIVER_SELF_SPECS ""
1334 /* Linking to libgomp implies pthreads. This is particularly important
1335 for targets that use different start files and suchlike. */
1336 #ifndef GOMP_SELF_SPECS
1337 #define GOMP_SELF_SPECS \
1338 "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \
1342 /* Likewise for -fgnu-tm. */
1343 #ifndef GTM_SELF_SPECS
1344 #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1347 static const char *const driver_self_specs
[] = {
1348 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1349 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
, GTM_SELF_SPECS
1352 #ifndef OPTION_DEFAULT_SPECS
1353 #define OPTION_DEFAULT_SPECS { "", "" }
1362 static const struct default_spec
1363 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
1367 struct user_specs
*next
;
1368 const char *filename
;
1371 static struct user_specs
*user_specs_head
, *user_specs_tail
;
1374 /* Record the mapping from file suffixes for compilation specs. */
1378 const char *suffix
; /* Use this compiler for input files
1379 whose names end in this suffix. */
1381 const char *spec
; /* To use this compiler, run this spec. */
1383 const char *cpp_spec
; /* If non-NULL, substitute this spec
1384 for `%C', rather than the usual
1386 int combinable
; /* If nonzero, compiler can deal with
1387 multiple source files at once (IMA). */
1388 int needs_preprocessing
; /* If nonzero, source files need to
1389 be run through a preprocessor. */
1392 /* Pointer to a vector of `struct compiler' that gives the spec for
1393 compiling a file, based on its suffix.
1394 A file that does not end in any of these suffixes will be passed
1395 unchanged to the loader and nothing else will be done to it.
1397 An entry containing two 0s is used to terminate the vector.
1399 If multiple entries match a file, the last matching one is used. */
1401 static struct compiler
*compilers
;
1403 /* Number of entries in `compilers', not counting the null terminator. */
1405 static int n_compilers
;
1407 /* The default list of file name suffixes and their compilation specs. */
1409 static const struct compiler default_compilers
[] =
1411 /* Add lists of suffixes of known languages here. If those languages
1412 were not present when we built the driver, we will hit these copies
1413 and be given a more meaningful error than "file not used since
1414 linking is not done". */
1415 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1416 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1417 {".mii", "#Objective-C++", 0, 0, 0},
1418 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1419 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1420 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1421 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1422 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1423 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1424 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1425 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1426 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1427 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1428 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1429 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1430 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1431 {".r", "#Ratfor", 0, 0, 0},
1432 {".go", "#Go", 0, 1, 0},
1433 {".d", "#D", 0, 1, 0}, {".dd", "#D", 0, 1, 0}, {".di", "#D", 0, 1, 0},
1434 /* Next come the entries for C. */
1435 {".c", "@c", 0, 0, 1},
1437 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1438 external preprocessor if -save-temps is given. */
1439 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1442 %eGNU C no longer supports -traditional without -E}\
1443 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1444 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1445 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1447 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1448 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1449 %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1451 "%{!E:%e-E or -x required when input is from standard input}\
1452 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1453 {".h", "@c-header", 0, 0, 0},
1455 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1456 external preprocessor if -save-temps is given. */
1457 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1459 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1460 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1461 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1463 %{!fsyntax-only:%{!S:-o %g.s} \
1464 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1465 %W{o*:--output-pch=%*}}%V}}\
1466 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1467 cc1 %(cpp_unique_options) %(cc1_options)\
1468 %{!fsyntax-only:%{!S:-o %g.s} \
1469 %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
1470 %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
1471 {".i", "@cpp-output", 0, 0, 0},
1473 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1474 {".s", "@assembler", 0, 0, 0},
1476 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1477 {".sx", "@assembler-with-cpp", 0, 0, 0},
1478 {".S", "@assembler-with-cpp", 0, 0, 0},
1479 {"@assembler-with-cpp",
1480 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1481 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1482 %{E|M|MM:%(cpp_debug_options)}\
1483 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1484 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1486 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1487 %{E|M|MM:%(cpp_debug_options)}\
1488 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1489 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1494 /* Mark end of table. */
1498 /* Number of elements in default_compilers, not counting the terminator. */
1500 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1502 typedef char *char_p
; /* For DEF_VEC_P. */
1504 /* A vector of options to give to the linker.
1505 These options are accumulated by %x,
1506 and substituted into the linker command with %X. */
1507 static vec
<char_p
> linker_options
;
1509 /* A vector of options to give to the assembler.
1510 These options are accumulated by -Wa,
1511 and substituted into the assembler command with %Y. */
1512 static vec
<char_p
> assembler_options
;
1514 /* A vector of options to give to the preprocessor.
1515 These options are accumulated by -Wp,
1516 and substituted into the preprocessor command with %Z. */
1517 static vec
<char_p
> preprocessor_options
;
1520 skip_whitespace (char *p
)
1524 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1525 be considered whitespace. */
1526 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1528 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1542 /* Structures to keep track of prefixes to try when looking for files. */
1546 const char *prefix
; /* String to prepend to the path. */
1547 struct prefix_list
*next
; /* Next in linked list. */
1548 int require_machine_suffix
; /* Don't use without machine_suffix. */
1549 /* 2 means try both machine_suffix and just_machine_suffix. */
1550 int priority
; /* Sort key - priority within list. */
1551 int os_multilib
; /* 1 if OS multilib scheme should be used,
1552 0 for GCC multilib scheme. */
1557 struct prefix_list
*plist
; /* List of prefixes to try */
1558 int max_len
; /* Max length of a prefix in PLIST */
1559 const char *name
; /* Name of this list (used in config stuff) */
1562 /* List of prefixes to try when looking for executables. */
1564 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1566 /* List of prefixes to try when looking for startup (crt0) files. */
1568 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1570 /* List of prefixes to try when looking for include files. */
1572 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1574 /* Suffix to attach to directories searched for commands.
1575 This looks like `MACHINE/VERSION/'. */
1577 static const char *machine_suffix
= 0;
1579 /* Suffix to attach to directories searched for commands.
1580 This is just `MACHINE/'. */
1582 static const char *just_machine_suffix
= 0;
1584 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1586 static const char *gcc_exec_prefix
;
1588 /* Adjusted value of standard_libexec_prefix. */
1590 static const char *gcc_libexec_prefix
;
1592 /* Default prefixes to attach to command names. */
1594 #ifndef STANDARD_STARTFILE_PREFIX_1
1595 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1597 #ifndef STANDARD_STARTFILE_PREFIX_2
1598 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1601 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1602 #undef MD_EXEC_PREFIX
1603 #undef MD_STARTFILE_PREFIX
1604 #undef MD_STARTFILE_PREFIX_1
1607 /* If no prefixes defined, use the null string, which will disable them. */
1608 #ifndef MD_EXEC_PREFIX
1609 #define MD_EXEC_PREFIX ""
1611 #ifndef MD_STARTFILE_PREFIX
1612 #define MD_STARTFILE_PREFIX ""
1614 #ifndef MD_STARTFILE_PREFIX_1
1615 #define MD_STARTFILE_PREFIX_1 ""
1618 /* These directories are locations set at configure-time based on the
1619 --prefix option provided to configure. Their initializers are
1620 defined in Makefile.in. These paths are not *directly* used when
1621 gcc_exec_prefix is set because, in that case, we know where the
1622 compiler has been installed, and use paths relative to that
1623 location instead. */
1624 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1625 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1626 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1627 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1629 /* For native compilers, these are well-known paths containing
1630 components that may be provided by the system. For cross
1631 compilers, these paths are not used. */
1632 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1633 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1634 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1635 static const char *const standard_startfile_prefix_1
1636 = STANDARD_STARTFILE_PREFIX_1
;
1637 static const char *const standard_startfile_prefix_2
1638 = STANDARD_STARTFILE_PREFIX_2
;
1640 /* A relative path to be used in finding the location of tools
1641 relative to the driver. */
1642 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1644 /* A prefix to be used when this is an accelerator compiler. */
1645 static const char *const accel_dir_suffix
= ACCEL_DIR_SUFFIX
;
1647 /* Subdirectory to use for locating libraries. Set by
1648 set_multilib_dir based on the compilation options. */
1650 static const char *multilib_dir
;
1652 /* Subdirectory to use for locating libraries in OS conventions. Set by
1653 set_multilib_dir based on the compilation options. */
1655 static const char *multilib_os_dir
;
1657 /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1658 set_multilib_dir based on the compilation options. */
1660 static const char *multiarch_dir
;
1662 /* Structure to keep track of the specs that have been defined so far.
1663 These are accessed using %(specname) in a compiler or link
1668 /* The following 2 fields must be first */
1669 /* to allow EXTRA_SPECS to be initialized */
1670 const char *name
; /* name of the spec. */
1671 const char *ptr
; /* available ptr if no static pointer */
1673 /* The following fields are not initialized */
1674 /* by EXTRA_SPECS */
1675 const char **ptr_spec
; /* pointer to the spec itself. */
1676 struct spec_list
*next
; /* Next spec in linked list. */
1677 int name_len
; /* length of the name */
1678 bool user_p
; /* whether string come from file spec. */
1679 bool alloc_p
; /* whether string was allocated */
1680 const char *default_ptr
; /* The default value of *ptr_spec. */
1683 #define INIT_STATIC_SPEC(NAME,PTR) \
1684 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false, \
1687 /* List of statically defined specs. */
1688 static struct spec_list static_specs
[] =
1690 INIT_STATIC_SPEC ("asm", &asm_spec
),
1691 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1692 INIT_STATIC_SPEC ("asm_debug_option", &asm_debug_option
),
1693 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1694 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1695 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1696 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1697 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1698 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1699 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1700 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1701 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1702 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1703 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1704 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1705 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1706 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1707 INIT_STATIC_SPEC ("link", &link_spec
),
1708 INIT_STATIC_SPEC ("lib", &lib_spec
),
1709 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1710 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1711 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1712 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1713 INIT_STATIC_SPEC ("version", &compiler_version
),
1714 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1715 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1716 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1717 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1718 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1719 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1720 INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse
),
1721 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1722 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1723 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1724 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1725 INIT_STATIC_SPEC ("post_link", &post_link_spec
),
1726 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1727 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1728 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1729 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1730 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1731 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1732 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1733 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1734 INIT_STATIC_SPEC ("self_spec", &self_spec
),
1737 #ifdef EXTRA_SPECS /* additional specs needed */
1738 /* Structure to keep track of just the first two args of a spec_list.
1739 That is all that the EXTRA_SPECS macro gives us. */
1742 const char *const name
;
1743 const char *const ptr
;
1746 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1747 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1750 /* List of dynamically allocates specs that have been defined so far. */
1752 static struct spec_list
*specs
= (struct spec_list
*) 0;
1754 /* List of static spec functions. */
1756 static const struct spec_function static_spec_functions
[] =
1758 { "getenv", getenv_spec_function
},
1759 { "if-exists", if_exists_spec_function
},
1760 { "if-exists-else", if_exists_else_spec_function
},
1761 { "if-exists-then-else", if_exists_then_else_spec_function
},
1762 { "sanitize", sanitize_spec_function
},
1763 { "replace-outfile", replace_outfile_spec_function
},
1764 { "remove-outfile", remove_outfile_spec_function
},
1765 { "version-compare", version_compare_spec_function
},
1766 { "include", include_spec_function
},
1767 { "find-file", find_file_spec_function
},
1768 { "find-plugindir", find_plugindir_spec_function
},
1769 { "print-asm-header", print_asm_header_spec_function
},
1770 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1771 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1772 { "pass-through-libs", pass_through_libs_spec_func
},
1773 { "dumps", dumps_spec_func
},
1774 { "gt", greater_than_spec_func
},
1775 { "debug-level-gt", debug_level_greater_than_spec_func
},
1776 { "dwarf-version-gt", dwarf_version_greater_than_spec_func
},
1777 { "fortran-preinclude-file", find_fortran_preinclude_file
},
1778 #ifdef EXTRA_SPEC_FUNCTIONS
1779 EXTRA_SPEC_FUNCTIONS
1784 static int processing_spec_function
;
1786 /* Add appropriate libgcc specs to OBSTACK, taking into account
1787 various permutations of -shared-libgcc, -shared, and such. */
1789 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1791 #ifndef USE_LD_AS_NEEDED
1792 #define USE_LD_AS_NEEDED 0
1796 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1797 const char *static_name
, const char *eh_name
)
1801 #if USE_LD_AS_NEEDED
1802 buf
= concat ("%{static|static-libgcc|static-pie:", static_name
, " ", eh_name
, "}"
1803 "%{!static:%{!static-libgcc:%{!static-pie:"
1804 "%{!shared-libgcc:",
1805 static_name
, " " LD_AS_NEEDED_OPTION
" ",
1806 shared_name
, " " LD_NO_AS_NEEDED_OPTION
1809 shared_name
, "%{!shared: ", static_name
, "}"
1812 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1813 "%{!static:%{!static-libgcc:"
1815 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1816 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1820 "%{shared-libgcc:", shared_name
, "}"
1821 "%{!shared-libgcc:", static_name
, "}"
1824 "%{shared:", shared_name
, "}"
1829 obstack_grow (obstack
, buf
, strlen (buf
));
1832 #endif /* ENABLE_SHARED_LIBGCC */
1834 /* Initialize the specs lookup routines. */
1839 struct spec_list
*next
= (struct spec_list
*) 0;
1840 struct spec_list
*sl
= (struct spec_list
*) 0;
1844 return; /* Already initialized. */
1847 fnotice (stderr
, "Using built-in specs.\n");
1850 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1852 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1854 sl
= &extra_specs
[i
];
1855 sl
->name
= extra_specs_1
[i
].name
;
1856 sl
->ptr
= extra_specs_1
[i
].ptr
;
1858 sl
->name_len
= strlen (sl
->name
);
1859 sl
->ptr_spec
= &sl
->ptr
;
1860 gcc_assert (sl
->ptr_spec
!= NULL
);
1861 sl
->default_ptr
= sl
->ptr
;
1866 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1868 sl
= &static_specs
[i
];
1873 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1874 /* ??? If neither -shared-libgcc nor --static-libgcc was
1875 seen, then we should be making an educated guess. Some proposed
1876 heuristics for ELF include:
1878 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1879 program will be doing dynamic loading, which will likely
1880 need the shared libgcc.
1882 (2) If "-ldl", then it's also a fair bet that we're doing
1885 (3) For each ET_DYN we're linking against (either through -lfoo
1886 or /some/path/foo.so), check to see whether it or one of
1887 its dependencies depends on a shared libgcc.
1891 If the runtime is fixed to look for program headers instead
1892 of calling __register_frame_info at all, for each object,
1893 use the shared libgcc if any EH symbol referenced.
1895 If crtstuff is fixed to not invoke __register_frame_info
1896 automatically, for each object, use the shared libgcc if
1897 any non-empty unwind section found.
1899 Doing any of this probably requires invoking an external program to
1900 do the actual object file scanning. */
1902 const char *p
= libgcc_spec
;
1905 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1906 when given the proper command line arguments. */
1909 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1911 init_gcc_specs (&obstack
,
1913 #ifdef USE_LIBUNWIND_EXCEPTIONS
1919 #ifdef USE_LIBUNWIND_EXCEPTIONS
1920 # ifdef HAVE_LD_STATIC_DYNAMIC
1921 " %{!static:%{!static-pie:" LD_STATIC_OPTION
"}} -lunwind"
1922 " %{!static:%{!static-pie:" LD_DYNAMIC_OPTION
"}}"
1932 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1934 /* Ug. We don't know shared library extensions. Hope that
1935 systems that use this form don't do shared libraries. */
1936 init_gcc_specs (&obstack
,
1940 #ifdef USE_LIBUNWIND_EXCEPTIONS
1949 obstack_1grow (&obstack
, *p
);
1950 in_sep
= (*p
== ' ');
1955 obstack_1grow (&obstack
, '\0');
1956 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1959 #ifdef USE_AS_TRADITIONAL_FORMAT
1960 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1962 static const char tf
[] = "--traditional-format ";
1963 obstack_grow (&obstack
, tf
, sizeof (tf
) - 1);
1964 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1965 asm_spec
= XOBFINISH (&obstack
, const char *);
1969 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
1970 defined LINKER_HASH_STYLE
1971 # ifdef LINK_BUILDID_SPEC
1972 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1973 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof (LINK_BUILDID_SPEC
) - 1);
1975 # ifdef LINK_EH_SPEC
1976 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1977 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof (LINK_EH_SPEC
) - 1);
1979 # ifdef LINKER_HASH_STYLE
1980 /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
1983 static const char hash_style
[] = "--hash-style=";
1984 obstack_grow (&obstack
, hash_style
, sizeof (hash_style
) - 1);
1985 obstack_grow (&obstack
, LINKER_HASH_STYLE
, sizeof (LINKER_HASH_STYLE
) - 1);
1986 obstack_1grow (&obstack
, ' ');
1989 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1990 link_spec
= XOBFINISH (&obstack
, const char *);
1996 /* Update the entry for SPEC in the static_specs table to point to VALUE,
1997 ensuring that we free the previous value if necessary. Set alloc_p for the
1998 entry to ALLOC_P: this determines whether we take ownership of VALUE (i.e.
1999 whether we need to free it later on). */
2001 set_static_spec (const char **spec
, const char *value
, bool alloc_p
)
2003 struct spec_list
*sl
= NULL
;
2005 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
2007 if (static_specs
[i
].ptr_spec
== spec
)
2009 sl
= static_specs
+ i
;
2018 const char *old
= *spec
;
2019 free (const_cast <char *> (old
));
2023 sl
->alloc_p
= alloc_p
;
2026 /* Update a static spec to a new string, taking ownership of that
2028 static void set_static_spec_owned (const char **spec
, const char *val
)
2030 return set_static_spec (spec
, val
, true);
2033 /* Update a static spec to point to a new value, but don't take
2034 ownership of (i.e. don't free) that string. */
2035 static void set_static_spec_shared (const char **spec
, const char *val
)
2037 return set_static_spec (spec
, val
, false);
2041 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
2042 removed; If the spec starts with a + then SPEC is added to the end of the
2046 set_spec (const char *name
, const char *spec
, bool user_p
)
2048 struct spec_list
*sl
;
2049 const char *old_spec
;
2050 int name_len
= strlen (name
);
2053 /* If this is the first call, initialize the statically allocated specs. */
2056 struct spec_list
*next
= (struct spec_list
*) 0;
2057 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
2059 sl
= &static_specs
[i
];
2066 /* See if the spec already exists. */
2067 for (sl
= specs
; sl
; sl
= sl
->next
)
2068 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
2073 /* Not found - make it. */
2074 sl
= XNEW (struct spec_list
);
2075 sl
->name
= xstrdup (name
);
2076 sl
->name_len
= name_len
;
2077 sl
->ptr_spec
= &sl
->ptr
;
2079 *(sl
->ptr_spec
) = "";
2081 sl
->default_ptr
= NULL
;
2085 old_spec
= *(sl
->ptr_spec
);
2086 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
2087 ? concat (old_spec
, spec
+ 1, NULL
)
2092 fnotice (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
2095 /* Free the old spec. */
2096 if (old_spec
&& sl
->alloc_p
)
2097 free (CONST_CAST (char *, old_spec
));
2099 sl
->user_p
= user_p
;
2103 /* Accumulate a command (program name and args), and run it. */
2105 typedef const char *const_char_p
; /* For DEF_VEC_P. */
2107 /* Vector of pointers to arguments in the current line of specifications. */
2108 static vec
<const_char_p
> argbuf
;
2110 /* Likewise, but for the current @file. */
2111 static vec
<const_char_p
> at_file_argbuf
;
2113 /* Whether an @file is currently open. */
2114 static bool in_at_file
= false;
2116 /* Were the options -c, -S or -E passed. */
2117 static int have_c
= 0;
2119 /* Was the option -o passed. */
2120 static int have_o
= 0;
2122 /* Was the option -E passed. */
2123 static int have_E
= 0;
2125 /* Pointer to output file name passed in with -o. */
2126 static const char *output_file
= 0;
2128 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
2129 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2132 static struct temp_name
{
2133 const char *suffix
; /* suffix associated with the code. */
2134 int length
; /* strlen (suffix). */
2135 int unique
; /* Indicates whether %g or %u/%U was used. */
2136 const char *filename
; /* associated filename. */
2137 int filename_length
; /* strlen (filename). */
2138 struct temp_name
*next
;
2141 /* Number of commands executed so far. */
2143 static int execution_count
;
2145 /* Number of commands that exited with a signal. */
2147 static int signal_count
;
2149 /* Allocate the argument vector. */
2155 at_file_argbuf
.create (10);
2158 /* Clear out the vector of arguments (after a command is executed). */
2163 argbuf
.truncate (0);
2164 at_file_argbuf
.truncate (0);
2167 /* Add one argument to the vector at the end.
2168 This is done when a space is seen or at the end of the line.
2169 If DELETE_ALWAYS is nonzero, the arg is a filename
2170 and the file should be deleted eventually.
2171 If DELETE_FAILURE is nonzero, the arg is a filename
2172 and the file should be deleted if this compilation fails. */
2175 store_arg (const char *arg
, int delete_always
, int delete_failure
)
2178 at_file_argbuf
.safe_push (arg
);
2180 argbuf
.safe_push (arg
);
2182 if (delete_always
|| delete_failure
)
2185 /* If the temporary file we should delete is specified as
2186 part of a joined argument extract the filename. */
2188 && (p
= strrchr (arg
, '=')))
2190 record_temp_file (arg
, delete_always
, delete_failure
);
2194 /* Open a temporary @file into which subsequent arguments will be stored. */
2200 fatal_error (input_location
, "cannot open nested response file");
2205 /* Create a temporary @file name. */
2207 static char *make_at_file (void)
2209 static int fileno
= 0;
2211 const char *base
, *ext
;
2213 if (!save_temps_flag
)
2214 return make_temp_file ("");
2217 if (!(base
&& *base
))
2219 if (!(base
&& *base
))
2222 sprintf (filename
, ".args.%d", fileno
++);
2225 if (base
== dumpdir
&& dumpdir_trailing_dash_added
)
2228 return concat (base
, ext
, NULL
);
2231 /* Close the temporary @file and add @file to the argument list. */
2234 close_at_file (void)
2237 fatal_error (input_location
, "cannot close nonexistent response file");
2241 const unsigned int n_args
= at_file_argbuf
.length ();
2245 char **argv
= (char **) alloca (sizeof (char *) * (n_args
+ 1));
2246 char *temp_file
= make_at_file ();
2247 char *at_argument
= concat ("@", temp_file
, NULL
);
2248 FILE *f
= fopen (temp_file
, "w");
2252 /* Copy the strings over. */
2253 for (i
= 0; i
< n_args
; i
++)
2254 argv
[i
] = CONST_CAST (char *, at_file_argbuf
[i
]);
2257 at_file_argbuf
.truncate (0);
2260 fatal_error (input_location
, "could not open temporary response file %s",
2263 status
= writeargv (argv
, f
);
2266 fatal_error (input_location
,
2267 "could not write to temporary response file %s",
2270 status
= fclose (f
);
2273 fatal_error (input_location
, "could not close temporary response file %s",
2276 store_arg (at_argument
, 0, 0);
2278 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
2281 /* Load specs from a file name named FILENAME, replacing occurrences of
2282 various different types of line-endings, \r\n, \n\r and just \r, with
2286 load_specs (const char *filename
)
2290 struct stat statbuf
;
2297 fnotice (stderr
, "Reading specs from %s\n", filename
);
2299 /* Open and stat the file. */
2300 desc
= open (filename
, O_RDONLY
, 0);
2304 /* This leaves DESC open, but the OS will save us. */
2305 fatal_error (input_location
, "cannot read spec file %qs: %m", filename
);
2308 if (stat (filename
, &statbuf
) < 0)
2311 /* Read contents of file into BUFFER. */
2312 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2313 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2316 buffer
[readlen
] = 0;
2319 specs
= XNEWVEC (char, readlen
+ 1);
2321 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2327 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2329 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2343 /* Read compilation specs from a file named FILENAME,
2344 replacing the default ones.
2346 A suffix which starts with `*' is a definition for
2347 one of the machine-specific sub-specs. The "suffix" should be
2348 *asm, *cc1, *cpp, *link, *startfile, etc.
2349 The corresponding spec is stored in asm_spec, etc.,
2350 rather than in the `compilers' vector.
2352 Anything invalid in the file is a fatal error. */
2355 read_specs (const char *filename
, bool main_p
, bool user_p
)
2360 buffer
= load_specs (filename
);
2362 /* Scan BUFFER for specs, putting them in the vector. */
2368 char *in
, *out
, *p1
, *p2
, *p3
;
2370 /* Advance P in BUFFER to the next nonblank nocomment line. */
2371 p
= skip_whitespace (p
);
2375 /* Is this a special command that starts with '%'? */
2376 /* Don't allow this for the main specs file, since it would
2377 encourage people to overwrite it. */
2378 if (*p
== '%' && !main_p
)
2381 while (*p
&& *p
!= '\n')
2387 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2388 && (p1
[sizeof "%include" - 1] == ' '
2389 || p1
[sizeof "%include" - 1] == '\t'))
2393 p1
+= sizeof ("%include");
2394 while (*p1
== ' ' || *p1
== '\t')
2397 if (*p1
++ != '<' || p
[-2] != '>')
2398 fatal_error (input_location
,
2399 "specs %%include syntax malformed after "
2401 (long) (p1
- buffer
+ 1));
2404 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2405 read_specs (new_filename
? new_filename
: p1
, false, user_p
);
2408 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2409 && (p1
[sizeof "%include_noerr" - 1] == ' '
2410 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2414 p1
+= sizeof "%include_noerr";
2415 while (*p1
== ' ' || *p1
== '\t')
2418 if (*p1
++ != '<' || p
[-2] != '>')
2419 fatal_error (input_location
,
2420 "specs %%include syntax malformed after "
2422 (long) (p1
- buffer
+ 1));
2425 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2427 read_specs (new_filename
, false, user_p
);
2428 else if (verbose_flag
)
2429 fnotice (stderr
, "could not find specs file %s\n", p1
);
2432 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2433 && (p1
[sizeof "%rename" - 1] == ' '
2434 || p1
[sizeof "%rename" - 1] == '\t'))
2437 struct spec_list
*sl
;
2438 struct spec_list
*newsl
;
2440 /* Get original name. */
2441 p1
+= sizeof "%rename";
2442 while (*p1
== ' ' || *p1
== '\t')
2445 if (! ISALPHA ((unsigned char) *p1
))
2446 fatal_error (input_location
,
2447 "specs %%rename syntax malformed after "
2449 (long) (p1
- buffer
));
2452 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2455 if (*p2
!= ' ' && *p2
!= '\t')
2456 fatal_error (input_location
,
2457 "specs %%rename syntax malformed after "
2459 (long) (p2
- buffer
));
2463 while (*p2
== ' ' || *p2
== '\t')
2466 if (! ISALPHA ((unsigned char) *p2
))
2467 fatal_error (input_location
,
2468 "specs %%rename syntax malformed after "
2470 (long) (p2
- buffer
));
2472 /* Get new spec name. */
2474 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2478 fatal_error (input_location
,
2479 "specs %%rename syntax malformed after "
2481 (long) (p3
- buffer
));
2484 for (sl
= specs
; sl
; sl
= sl
->next
)
2485 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2489 fatal_error (input_location
,
2490 "specs %s spec was not found to be renamed", p1
);
2492 if (strcmp (p1
, p2
) == 0)
2495 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2496 if (strcmp (newsl
->name
, p2
) == 0)
2497 fatal_error (input_location
,
2498 "%s: attempt to rename spec %qs to "
2499 "already defined spec %qs",
2504 fnotice (stderr
, "rename spec %s to %s\n", p1
, p2
);
2506 fnotice (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
2510 set_spec (p2
, *(sl
->ptr_spec
), user_p
);
2512 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2514 *(sl
->ptr_spec
) = "";
2519 fatal_error (input_location
,
2520 "specs unknown %% command after %ld characters",
2521 (long) (p1
- buffer
));
2524 /* Find the colon that should end the suffix. */
2526 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2529 /* The colon shouldn't be missing. */
2531 fatal_error (input_location
,
2532 "specs file malformed after %ld characters",
2533 (long) (p1
- buffer
));
2535 /* Skip back over trailing whitespace. */
2537 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2540 /* Copy the suffix to a string. */
2541 suffix
= save_string (p
, p2
- p
);
2542 /* Find the next line. */
2543 p
= skip_whitespace (p1
+ 1);
2545 fatal_error (input_location
,
2546 "specs file malformed after %ld characters",
2547 (long) (p
- buffer
));
2550 /* Find next blank line or end of string. */
2551 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2554 /* Specs end at the blank line and do not include the newline. */
2555 spec
= save_string (p
, p1
- p
);
2558 /* Delete backslash-newline sequences from the spec. */
2563 if (in
[0] == '\\' && in
[1] == '\n')
2565 else if (in
[0] == '#')
2566 while (*in
&& *in
!= '\n')
2574 if (suffix
[0] == '*')
2576 if (! strcmp (suffix
, "*link_command"))
2577 link_command_spec
= spec
;
2580 set_spec (suffix
+ 1, spec
, user_p
);
2586 /* Add this pair to the vector. */
2588 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2590 compilers
[n_compilers
].suffix
= suffix
;
2591 compilers
[n_compilers
].spec
= spec
;
2593 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2597 link_command_spec
= spec
;
2600 if (link_command_spec
== 0)
2601 fatal_error (input_location
, "spec file has no spec for linking");
2603 XDELETEVEC (buffer
);
2606 /* Record the names of temporary files we tell compilers to write,
2607 and delete them at the end of the run. */
2609 /* This is the common prefix we use to make temp file names.
2610 It is chosen once for each run of this program.
2611 It is substituted into a spec by %g or %j.
2612 Thus, all temp file names contain this prefix.
2613 In practice, all temp file names start with this prefix.
2615 This prefix comes from the envvar TMPDIR if it is defined;
2616 otherwise, from the P_tmpdir macro if that is defined;
2617 otherwise, in /usr/tmp or /tmp;
2618 or finally the current directory if all else fails. */
2620 static const char *temp_filename
;
2622 /* Length of the prefix. */
2624 static int temp_filename_length
;
2626 /* Define the list of temporary files to delete. */
2631 struct temp_file
*next
;
2634 /* Queue of files to delete on success or failure of compilation. */
2635 static struct temp_file
*always_delete_queue
;
2636 /* Queue of files to delete on failure of compilation. */
2637 static struct temp_file
*failure_delete_queue
;
2639 /* Record FILENAME as a file to be deleted automatically.
2640 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2641 otherwise delete it in any case.
2642 FAIL_DELETE nonzero means delete it if a compilation step fails;
2643 otherwise delete it in any case. */
2646 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2648 char *const name
= xstrdup (filename
);
2652 struct temp_file
*temp
;
2653 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2654 if (! filename_cmp (name
, temp
->name
))
2660 temp
= XNEW (struct temp_file
);
2661 temp
->next
= always_delete_queue
;
2663 always_delete_queue
= temp
;
2670 struct temp_file
*temp
;
2671 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2672 if (! filename_cmp (name
, temp
->name
))
2678 temp
= XNEW (struct temp_file
);
2679 temp
->next
= failure_delete_queue
;
2681 failure_delete_queue
= temp
;
2687 /* Delete all the temporary files whose names we previously recorded. */
2689 #ifndef DELETE_IF_ORDINARY
2690 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2693 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2694 if (unlink (NAME) < 0) \
2696 error ("%s: %m", (NAME)); \
2701 delete_if_ordinary (const char *name
)
2707 printf ("Delete %s? (y or n) ", name
);
2711 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2714 if (i
== 'y' || i
== 'Y')
2716 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2720 delete_temp_files (void)
2722 struct temp_file
*temp
;
2724 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2725 delete_if_ordinary (temp
->name
);
2726 always_delete_queue
= 0;
2729 /* Delete all the files to be deleted on error. */
2732 delete_failure_queue (void)
2734 struct temp_file
*temp
;
2736 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2737 delete_if_ordinary (temp
->name
);
2741 clear_failure_queue (void)
2743 failure_delete_queue
= 0;
2746 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2748 If DO_MULTI is true iterate over the paths twice, first with multilib
2749 suffix then without, otherwise iterate over the paths once without
2750 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2751 to avoid visiting the same path twice, but we could do better. For
2752 instance, /usr/lib/../lib is considered different from /usr/lib.
2753 At least EXTRA_SPACE chars past the end of the path passed to
2754 CALLBACK are available for use by the callback.
2755 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2757 Returns the value returned by CALLBACK. */
2760 for_each_path (const struct path_prefix
*paths
,
2763 void *(*callback
) (char *, void *),
2764 void *callback_info
)
2766 struct prefix_list
*pl
;
2767 const char *multi_dir
= NULL
;
2768 const char *multi_os_dir
= NULL
;
2769 const char *multiarch_suffix
= NULL
;
2770 const char *multi_suffix
;
2771 const char *just_multi_suffix
;
2774 bool skip_multi_dir
= false;
2775 bool skip_multi_os_dir
= false;
2777 multi_suffix
= machine_suffix
;
2778 just_multi_suffix
= just_machine_suffix
;
2779 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2781 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2782 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2783 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2785 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2786 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2788 multiarch_suffix
= concat (multiarch_dir
, dir_separator_str
, NULL
);
2792 size_t multi_dir_len
= 0;
2793 size_t multi_os_dir_len
= 0;
2794 size_t multiarch_len
= 0;
2796 size_t just_suffix_len
;
2800 multi_dir_len
= strlen (multi_dir
);
2802 multi_os_dir_len
= strlen (multi_os_dir
);
2803 if (multiarch_suffix
)
2804 multiarch_len
= strlen (multiarch_suffix
);
2805 suffix_len
= strlen (multi_suffix
);
2806 just_suffix_len
= strlen (just_multi_suffix
);
2810 len
= paths
->max_len
+ extra_space
+ 1;
2811 len
+= MAX (MAX (suffix_len
, multi_os_dir_len
), multiarch_len
);
2812 path
= XNEWVEC (char, len
);
2815 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2817 len
= strlen (pl
->prefix
);
2818 memcpy (path
, pl
->prefix
, len
);
2820 /* Look first in MACHINE/VERSION subdirectory. */
2821 if (!skip_multi_dir
)
2823 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2824 ret
= callback (path
, callback_info
);
2829 /* Some paths are tried with just the machine (ie. target)
2830 subdir. This is used for finding as, ld, etc. */
2832 && pl
->require_machine_suffix
== 2)
2834 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2835 ret
= callback (path
, callback_info
);
2840 /* Now try the multiarch path. */
2842 && !pl
->require_machine_suffix
&& multiarch_dir
)
2844 memcpy (path
+ len
, multiarch_suffix
, multiarch_len
+ 1);
2845 ret
= callback (path
, callback_info
);
2850 /* Now try the base path. */
2851 if (!pl
->require_machine_suffix
2852 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2854 const char *this_multi
;
2855 size_t this_multi_len
;
2857 if (pl
->os_multilib
)
2859 this_multi
= multi_os_dir
;
2860 this_multi_len
= multi_os_dir_len
;
2864 this_multi
= multi_dir
;
2865 this_multi_len
= multi_dir_len
;
2869 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2873 ret
= callback (path
, callback_info
);
2881 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2884 /* Run through the paths again, this time without multilibs.
2885 Don't repeat any we have already seen. */
2888 free (CONST_CAST (char *, multi_dir
));
2890 free (CONST_CAST (char *, multi_suffix
));
2891 multi_suffix
= machine_suffix
;
2892 free (CONST_CAST (char *, just_multi_suffix
));
2893 just_multi_suffix
= just_machine_suffix
;
2896 skip_multi_dir
= true;
2899 free (CONST_CAST (char *, multi_os_dir
));
2900 multi_os_dir
= NULL
;
2903 skip_multi_os_dir
= true;
2908 free (CONST_CAST (char *, multi_dir
));
2909 free (CONST_CAST (char *, multi_suffix
));
2910 free (CONST_CAST (char *, just_multi_suffix
));
2913 free (CONST_CAST (char *, multi_os_dir
));
2919 /* Callback for build_search_list. Adds path to obstack being built. */
2921 struct add_to_obstack_info
{
2928 add_to_obstack (char *path
, void *data
)
2930 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2932 if (info
->check_dir
&& !is_directory (path
, false))
2935 if (!info
->first_time
)
2936 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2938 obstack_grow (info
->ob
, path
, strlen (path
));
2940 info
->first_time
= false;
2944 /* Add or change the value of an environment variable, outputting the
2945 change to standard error if in verbose mode. */
2947 xputenv (const char *string
)
2952 /* Build a list of search directories from PATHS.
2953 PREFIX is a string to prepend to the list.
2954 If CHECK_DIR_P is true we ensure the directory exists.
2955 If DO_MULTI is true, multilib paths are output first, then
2957 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2958 It is also used by the --print-search-dirs flag. */
2961 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2962 bool check_dir
, bool do_multi
)
2964 struct add_to_obstack_info info
;
2966 info
.ob
= &collect_obstack
;
2967 info
.check_dir
= check_dir
;
2968 info
.first_time
= true;
2970 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2971 obstack_1grow (&collect_obstack
, '=');
2973 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2975 obstack_1grow (&collect_obstack
, '\0');
2976 return XOBFINISH (&collect_obstack
, char *);
2979 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2983 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2986 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2989 /* Check whether NAME can be accessed in MODE. This is like access,
2990 except that it never considers directories to be executable. */
2993 access_check (const char *name
, int mode
)
2999 if (stat (name
, &st
) < 0
3000 || S_ISDIR (st
.st_mode
))
3004 return access (name
, mode
);
3007 /* Callback for find_a_file. Appends the file name to the directory
3008 path. If the resulting file exists in the right mode, return the
3009 full pathname to the file. */
3011 struct file_at_path_info
{
3020 file_at_path (char *path
, void *data
)
3022 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
3023 size_t len
= strlen (path
);
3025 memcpy (path
+ len
, info
->name
, info
->name_len
);
3026 len
+= info
->name_len
;
3028 /* Some systems have a suffix for executable files.
3029 So try appending that first. */
3030 if (info
->suffix_len
)
3032 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
3033 if (access_check (path
, info
->mode
) == 0)
3038 if (access_check (path
, info
->mode
) == 0)
3044 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
3045 access to check permissions. If DO_MULTI is true, search multilib
3046 paths then non-multilib paths, otherwise do not search multilib paths.
3047 Return 0 if not found, otherwise return its name, allocated with malloc. */
3050 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
3053 struct file_at_path_info info
;
3055 #ifdef DEFAULT_ASSEMBLER
3056 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
3057 return xstrdup (DEFAULT_ASSEMBLER
);
3060 #ifdef DEFAULT_LINKER
3061 if (! strcmp (name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
3062 return xstrdup (DEFAULT_LINKER
);
3065 /* Determine the filename to execute (special case for absolute paths). */
3067 if (IS_ABSOLUTE_PATH (name
))
3069 if (access (name
, mode
) == 0)
3070 return xstrdup (name
);
3076 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
3077 info
.name_len
= strlen (info
.name
);
3078 info
.suffix_len
= strlen (info
.suffix
);
3081 return (char*) for_each_path (pprefix
, do_multi
,
3082 info
.name_len
+ info
.suffix_len
,
3083 file_at_path
, &info
);
3086 /* Ranking of prefixes in the sort list. -B prefixes are put before
3089 enum path_prefix_priority
3091 PREFIX_PRIORITY_B_OPT
,
3092 PREFIX_PRIORITY_LAST
3095 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
3096 order according to PRIORITY. Within each PRIORITY, new entries are
3099 If WARN is nonzero, we will warn if no file is found
3100 through this prefix. WARN should point to an int
3101 which will be set to 1 if this entry is used.
3103 COMPONENT is the value to be passed to update_path.
3105 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
3106 the complete value of machine_suffix.
3107 2 means try both machine_suffix and just_machine_suffix. */
3110 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
3111 const char *component
, /* enum prefix_priority */ int priority
,
3112 int require_machine_suffix
, int os_multilib
)
3114 struct prefix_list
*pl
, **prev
;
3117 for (prev
= &pprefix
->plist
;
3118 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
3119 prev
= &(*prev
)->next
)
3122 /* Keep track of the longest prefix. */
3124 prefix
= update_path (prefix
, component
);
3125 len
= strlen (prefix
);
3126 if (len
> pprefix
->max_len
)
3127 pprefix
->max_len
= len
;
3129 pl
= XNEW (struct prefix_list
);
3130 pl
->prefix
= prefix
;
3131 pl
->require_machine_suffix
= require_machine_suffix
;
3132 pl
->priority
= priority
;
3133 pl
->os_multilib
= os_multilib
;
3135 /* Insert after PREV. */
3140 /* Same as add_prefix, but prepending target_system_root to prefix. */
3141 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
3143 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
3144 const char *component
,
3145 /* enum prefix_priority */ int priority
,
3146 int require_machine_suffix
, int os_multilib
)
3148 if (!IS_ABSOLUTE_PATH (prefix
))
3149 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
3151 if (target_system_root
)
3153 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
3154 size_t sysroot_len
= strlen (target_system_root
);
3157 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
3158 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
3160 if (target_sysroot_suffix
)
3161 prefix
= concat (sysroot_no_trailing_dir_separator
,
3162 target_sysroot_suffix
, prefix
, NULL
);
3164 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
3166 free (sysroot_no_trailing_dir_separator
);
3168 /* We have to override this because GCC's notion of sysroot
3169 moves along with GCC. */
3173 add_prefix (pprefix
, prefix
, component
, priority
,
3174 require_machine_suffix
, os_multilib
);
3177 /* Same as add_prefix, but prepending target_sysroot_hdrs_suffix to prefix. */
3180 add_sysrooted_hdrs_prefix (struct path_prefix
*pprefix
, const char *prefix
,
3181 const char *component
,
3182 /* enum prefix_priority */ int priority
,
3183 int require_machine_suffix
, int os_multilib
)
3185 if (!IS_ABSOLUTE_PATH (prefix
))
3186 fatal_error (input_location
, "system path %qs is not absolute", prefix
);
3188 if (target_system_root
)
3190 char *sysroot_no_trailing_dir_separator
= xstrdup (target_system_root
);
3191 size_t sysroot_len
= strlen (target_system_root
);
3194 && target_system_root
[sysroot_len
- 1] == DIR_SEPARATOR
)
3195 sysroot_no_trailing_dir_separator
[sysroot_len
- 1] = '\0';
3197 if (target_sysroot_hdrs_suffix
)
3198 prefix
= concat (sysroot_no_trailing_dir_separator
,
3199 target_sysroot_hdrs_suffix
, prefix
, NULL
);
3201 prefix
= concat (sysroot_no_trailing_dir_separator
, prefix
, NULL
);
3203 free (sysroot_no_trailing_dir_separator
);
3205 /* We have to override this because GCC's notion of sysroot
3206 moves along with GCC. */
3210 add_prefix (pprefix
, prefix
, component
, priority
,
3211 require_machine_suffix
, os_multilib
);
3215 /* Execute the command specified by the arguments on the current line of spec.
3216 When using pipes, this includes several piped-together commands
3217 with `|' between them.
3219 Return 0 if successful, -1 if failed. */
3225 int n_commands
; /* # of command. */
3227 struct pex_obj
*pex
;
3230 const char *prog
; /* program name. */
3231 const char **argv
; /* vector of args. */
3235 struct command
*commands
; /* each command buffer with above info. */
3237 gcc_assert (!processing_spec_function
);
3241 string
= find_a_file (&exec_prefixes
,
3242 argbuf
[0], X_OK
, false);
3245 insert_wrapper (wrapper_string
);
3248 /* Count # of piped commands. */
3249 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
3250 if (strcmp (arg
, "|") == 0)
3253 /* Get storage for each command. */
3254 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
3256 /* Split argbuf into its separate piped processes,
3257 and record info about each one.
3258 Also search for the programs that are to be run. */
3260 argbuf
.safe_push (0);
3262 commands
[0].prog
= argbuf
[0]; /* first command. */
3263 commands
[0].argv
= argbuf
.address ();
3265 if (!wrapper_string
)
3267 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
3269 commands
[0].argv
[0] = string
;
3272 for (n_commands
= 1, i
= 0; argbuf
.iterate (i
, &arg
); i
++)
3273 if (arg
&& strcmp (arg
, "|") == 0)
3274 { /* each command. */
3275 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
3276 fatal_error (input_location
, "%<-pipe%> not supported");
3278 argbuf
[i
] = 0; /* Termination of command args. */
3279 commands
[n_commands
].prog
= argbuf
[i
+ 1];
3280 commands
[n_commands
].argv
3281 = &(argbuf
.address ())[i
+ 1];
3282 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
3285 commands
[n_commands
].argv
[0] = string
;
3289 /* If -v, print what we are about to do, and maybe query. */
3293 /* For help listings, put a blank line between sub-processes. */
3294 if (print_help_list
)
3295 fputc ('\n', stderr
);
3297 /* Print each piped command as a separate line. */
3298 for (i
= 0; i
< n_commands
; i
++)
3300 const char *const *j
;
3302 if (verbose_only_flag
)
3304 for (j
= commands
[i
].argv
; *j
; j
++)
3307 for (p
= *j
; *p
; ++p
)
3308 if (!ISALNUM ((unsigned char) *p
)
3309 && *p
!= '_' && *p
!= '/' && *p
!= '-' && *p
!= '.')
3313 fprintf (stderr
, " \"");
3314 for (p
= *j
; *p
; ++p
)
3316 if (*p
== '"' || *p
== '\\' || *p
== '$')
3317 fputc ('\\', stderr
);
3320 fputc ('"', stderr
);
3322 /* If it's empty, print "". */
3324 fprintf (stderr
, " \"\"");
3326 fprintf (stderr
, " %s", *j
);
3330 for (j
= commands
[i
].argv
; *j
; j
++)
3331 /* If it's empty, print "". */
3333 fprintf (stderr
, " \"\"");
3335 fprintf (stderr
, " %s", *j
);
3337 /* Print a pipe symbol after all but the last command. */
3338 if (i
+ 1 != n_commands
)
3339 fprintf (stderr
, " |");
3340 fprintf (stderr
, "\n");
3343 if (verbose_only_flag
!= 0)
3345 /* verbose_only_flag should act as if the spec was
3346 executed, so increment execution_count before
3347 returning. This prevents spurious warnings about
3348 unused linker input files, etc. */
3353 fnotice (stderr
, "\nGo ahead? (y or n) ");
3357 while (getchar () != '\n')
3360 if (i
!= 'y' && i
!= 'Y')
3365 #ifdef ENABLE_VALGRIND_CHECKING
3366 /* Run the each command through valgrind. To simplify prepending the
3367 path to valgrind and the option "-q" (for quiet operation unless
3368 something triggers), we allocate a separate argv array. */
3370 for (i
= 0; i
< n_commands
; i
++)
3376 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3379 argv
= XALLOCAVEC (const char *, argc
+ 3);
3381 argv
[0] = VALGRIND_PATH
;
3383 for (j
= 2; j
< argc
+ 2; j
++)
3384 argv
[j
] = commands
[i
].argv
[j
- 2];
3387 commands
[i
].argv
= argv
;
3388 commands
[i
].prog
= argv
[0];
3392 /* Run each piped subprocess. */
3394 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3395 ? PEX_RECORD_TIMES
: 0),
3396 progname
, temp_filename
);
3398 fatal_error (input_location
, "%<pex_init%> failed: %m");
3400 for (i
= 0; i
< n_commands
; i
++)
3404 const char *string
= commands
[i
].argv
[0];
3406 errmsg
= pex_run (pex
,
3407 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3408 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3409 string
, CONST_CAST (char **, commands
[i
].argv
),
3414 fatal_error (input_location
,
3415 err
? G_("cannot execute %qs: %s: %m")
3416 : G_("cannot execute %qs: %s"),
3420 if (i
&& string
!= commands
[i
].prog
)
3421 free (CONST_CAST (char *, string
));
3426 /* Wait for all the subprocesses to finish. */
3430 struct pex_time
*times
= NULL
;
3433 statuses
= (int *) alloca (n_commands
* sizeof (int));
3434 if (!pex_get_status (pex
, n_commands
, statuses
))
3435 fatal_error (input_location
, "failed to get exit status: %m");
3437 if (report_times
|| report_times_to_file
)
3439 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3440 if (!pex_get_times (pex
, n_commands
, times
))
3441 fatal_error (input_location
, "failed to get process times: %m");
3446 for (i
= 0; i
< n_commands
; ++i
)
3448 int status
= statuses
[i
];
3450 if (WIFSIGNALED (status
))
3451 switch (WTERMSIG (status
))
3455 /* SIGQUIT and SIGKILL are not available on MinGW. */
3462 /* The user (or environment) did something to the
3463 inferior. Making this an ICE confuses the user into
3464 thinking there's a compiler bug. Much more likely is
3465 the user or OOM killer nuked it. */
3466 fatal_error (input_location
,
3467 "%s signal terminated program %s",
3468 strsignal (WTERMSIG (status
)),
3474 /* SIGPIPE is a special case. It happens in -pipe mode
3475 when the compiler dies before the preprocessor is
3476 done, or the assembler dies before the compiler is
3477 done. There's generally been an error already, and
3478 this is just fallout. So don't generate another
3479 error unless we would otherwise have succeeded. */
3480 if (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
)
3490 /* The inferior failed to catch the signal. */
3491 internal_error_no_backtrace ("%s signal terminated program %s",
3492 strsignal (WTERMSIG (status
)),
3495 else if (WIFEXITED (status
)
3496 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3498 /* For ICEs in cc1, cc1obj, cc1plus see if it is
3499 reproducible or not. */
3502 && WEXITSTATUS (status
) == ICE_EXIT_CODE
3504 && (p
= strrchr (commands
[0].argv
[0], DIR_SEPARATOR
))
3505 && ! strncmp (p
+ 1, "cc1", 3))
3506 try_generate_repro (commands
[0].argv
);
3507 if (WEXITSTATUS (status
) > greatest_status
)
3508 greatest_status
= WEXITSTATUS (status
);
3512 if (report_times
|| report_times_to_file
)
3514 struct pex_time
*pt
= ×
[i
];
3517 ut
= ((double) pt
->user_seconds
3518 + (double) pt
->user_microseconds
/ 1.0e6
);
3519 st
= ((double) pt
->system_seconds
3520 + (double) pt
->system_microseconds
/ 1.0e6
);
3525 fnotice (stderr
, "# %s %.2f %.2f\n",
3526 commands
[i
].prog
, ut
, st
);
3528 if (report_times_to_file
)
3531 const char *const *j
;
3533 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3535 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3538 for (p
= *j
; *p
; ++p
)
3539 if (*p
== '"' || *p
== '\\' || *p
== '$'
3545 fprintf (report_times_to_file
, " \"");
3546 for (p
= *j
; *p
; ++p
)
3548 if (*p
== '"' || *p
== '\\' || *p
== '$')
3549 fputc ('\\', report_times_to_file
);
3550 fputc (*p
, report_times_to_file
);
3552 fputc ('"', report_times_to_file
);
3555 fprintf (report_times_to_file
, " %s", *j
);
3558 fputc ('\n', report_times_to_file
);
3564 if (commands
[0].argv
[0] != commands
[0].prog
)
3565 free (CONST_CAST (char *, commands
[0].argv
[0]));
3571 /* Find all the switches given to us
3572 and make a vector describing them.
3573 The elements of the vector are strings, one per switch given.
3574 If a switch uses following arguments, then the `part1' field
3575 is the switch itself and the `args' field
3576 is a null-terminated vector containing the following arguments.
3577 Bits in the `live_cond' field are:
3578 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3579 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3580 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3581 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored.
3582 SWITCH_KEEP_FOR_GCC to indicate that this switch, otherwise ignored,
3583 should be included in COLLECT_GCC_OPTIONS.
3584 in all do_spec calls afterwards. Used for %<S from self specs.
3585 The `known' field describes whether this is an internal switch.
3586 The `validated' field describes whether any spec has looked at this switch;
3587 if it remains false at the end of the run, the switch must be meaningless.
3588 The `ordering' field is used to temporarily mark switches that have to be
3589 kept in a specific order. */
3591 #define SWITCH_LIVE (1 << 0)
3592 #define SWITCH_FALSE (1 << 1)
3593 #define SWITCH_IGNORE (1 << 2)
3594 #define SWITCH_IGNORE_PERMANENTLY (1 << 3)
3595 #define SWITCH_KEEP_FOR_GCC (1 << 4)
3601 unsigned int live_cond
;
3607 static struct switchstr
*switches
;
3609 static int n_switches
;
3611 static int n_switches_alloc
;
3613 /* Set to zero if -fcompare-debug is disabled, positive if it's
3614 enabled and we're running the first compilation, negative if it's
3615 enabled and we're running the second compilation. For most of the
3616 time, it's in the range -1..1, but it can be temporarily set to 2
3617 or 3 to indicate that the -fcompare-debug flags didn't come from
3618 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3619 variable, until a synthesized -fcompare-debug flag is added to the
3623 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3624 int compare_debug_second
;
3626 /* Set to the flags that should be passed to the second compilation in
3627 a -fcompare-debug compilation. */
3628 const char *compare_debug_opt
;
3630 static struct switchstr
*switches_debug_check
[2];
3632 static int n_switches_debug_check
[2];
3634 static int n_switches_alloc_debug_check
[2];
3636 static char *debug_check_temp_file
[2];
3638 /* Language is one of three things:
3640 1) The name of a real programming language.
3641 2) NULL, indicating that no one has figured out
3643 3) '*', indicating that the file should be passed
3648 const char *language
;
3649 struct compiler
*incompiler
;
3654 /* Also a vector of input files specified. */
3656 static struct infile
*infiles
;
3660 static int n_infiles_alloc
;
3662 /* True if undefined environment variables encountered during spec processing
3663 are ok to ignore, typically when we're running for --help or --version. */
3665 static bool spec_undefvar_allowed
;
3667 /* True if multiple input files are being compiled to a single
3670 static bool combine_inputs
;
3672 /* This counts the number of libraries added by lang_specific_driver, so that
3673 we can tell if there were any user supplied any files or libraries. */
3675 static int added_libraries
;
3677 /* And a vector of corresponding output files is made up later. */
3679 const char **outfiles
;
3681 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3683 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3684 is true if we should look for an executable suffix. DO_OBJ
3685 is true if we should look for an object suffix. */
3688 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3689 int do_obj ATTRIBUTE_UNUSED
)
3691 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3699 len
= strlen (name
);
3701 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3702 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3703 if (do_obj
&& len
> 2
3704 && name
[len
- 2] == '.'
3705 && name
[len
- 1] == 'o')
3707 obstack_grow (&obstack
, name
, len
- 2);
3708 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3709 name
= XOBFINISH (&obstack
, const char *);
3713 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3714 /* If there is no filetype, make it the executable suffix (which includes
3715 the "."). But don't get confused if we have just "-o". */
3716 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || not_actual_file_p (name
))
3719 for (i
= len
- 1; i
>= 0; i
--)
3720 if (IS_DIR_SEPARATOR (name
[i
]))
3723 for (i
++; i
< len
; i
++)
3727 obstack_grow (&obstack
, name
, len
);
3728 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3729 strlen (TARGET_EXECUTABLE_SUFFIX
));
3730 name
= XOBFINISH (&obstack
, const char *);
3737 /* Display the command line switches accepted by gcc. */
3741 printf (_("Usage: %s [options] file...\n"), progname
);
3742 fputs (_("Options:\n"), stdout
);
3744 fputs (_(" -pass-exit-codes Exit with highest error code from a phase.\n"), stdout
);
3745 fputs (_(" --help Display this information.\n"), stdout
);
3746 fputs (_(" --target-help Display target specific command line options.\n"), stdout
);
3747 fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...].\n"), stdout
);
3748 fputs (_(" Display specific types of command line options.\n"), stdout
);
3750 fputs (_(" (Use '-v --help' to display command line options of sub-processes).\n"), stdout
);
3751 fputs (_(" --version Display compiler version information.\n"), stdout
);
3752 fputs (_(" -dumpspecs Display all of the built in spec strings.\n"), stdout
);
3753 fputs (_(" -dumpversion Display the version of the compiler.\n"), stdout
);
3754 fputs (_(" -dumpmachine Display the compiler's target processor.\n"), stdout
);
3755 fputs (_(" -print-search-dirs Display the directories in the compiler's search path.\n"), stdout
);
3756 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library.\n"), stdout
);
3757 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>.\n"), stdout
);
3758 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>.\n"), stdout
);
3760 -print-multiarch Display the target's normalized GNU triplet, used as\n\
3761 a component in the library path.\n"), stdout
);
3762 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc.\n"), stdout
);
3764 -print-multi-lib Display the mapping between command line options and\n\
3765 multiple library search directories.\n"), stdout
);
3766 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries.\n"), stdout
);
3767 fputs (_(" -print-sysroot Display the target libraries directory.\n"), stdout
);
3768 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers.\n"), stdout
);
3769 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler.\n"), stdout
);
3770 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor.\n"), stdout
);
3771 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker.\n"), stdout
);
3772 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler.\n"), stdout
);
3773 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor.\n"), stdout
);
3774 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker.\n"), stdout
);
3775 fputs (_(" -save-temps Do not delete intermediate files.\n"), stdout
);
3776 fputs (_(" -save-temps=<arg> Do not delete intermediate files.\n"), stdout
);
3778 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3779 prefixes to other gcc components.\n"), stdout
);
3780 fputs (_(" -pipe Use pipes rather than intermediate files.\n"), stdout
);
3781 fputs (_(" -time Time the execution of each subprocess.\n"), stdout
);
3782 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>.\n"), stdout
);
3783 fputs (_(" -std=<standard> Assume that the input sources are for <standard>.\n"), stdout
);
3785 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3786 and libraries.\n"), stdout
);
3787 fputs (_(" -B <directory> Add <directory> to the compiler's search paths.\n"), stdout
);
3788 fputs (_(" -v Display the programs invoked by the compiler.\n"), stdout
);
3789 fputs (_(" -### Like -v but options quoted and commands not executed.\n"), stdout
);
3790 fputs (_(" -E Preprocess only; do not compile, assemble or link.\n"), stdout
);
3791 fputs (_(" -S Compile only; do not assemble or link.\n"), stdout
);
3792 fputs (_(" -c Compile and assemble, but do not link.\n"), stdout
);
3793 fputs (_(" -o <file> Place the output into <file>.\n"), stdout
);
3794 fputs (_(" -pie Create a dynamically linked position independent\n\
3795 executable.\n"), stdout
);
3796 fputs (_(" -shared Create a shared library.\n"), stdout
);
3798 -x <language> Specify the language of the following input files.\n\
3799 Permissible languages include: c c++ assembler none\n\
3800 'none' means revert to the default behavior of\n\
3801 guessing the language based on the file's extension.\n\
3805 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3806 passed on to the various sub-processes invoked by %s. In order to pass\n\
3807 other options on to these processes the -W<letter> options must be used.\n\
3810 /* The rest of the options are displayed by invocations of the various
3815 add_preprocessor_option (const char *option
, int len
)
3817 preprocessor_options
.safe_push (save_string (option
, len
));
3821 add_assembler_option (const char *option
, int len
)
3823 assembler_options
.safe_push (save_string (option
, len
));
3827 add_linker_option (const char *option
, int len
)
3829 linker_options
.safe_push (save_string (option
, len
));
3832 /* Allocate space for an input file in infiles. */
3837 if (n_infiles_alloc
== 0)
3839 n_infiles_alloc
= 16;
3840 infiles
= XNEWVEC (struct infile
, n_infiles_alloc
);
3842 else if (n_infiles_alloc
== n_infiles
)
3844 n_infiles_alloc
*= 2;
3845 infiles
= XRESIZEVEC (struct infile
, infiles
, n_infiles_alloc
);
3849 /* Store an input file with the given NAME and LANGUAGE in
3853 add_infile (const char *name
, const char *language
)
3856 infiles
[n_infiles
].name
= name
;
3857 infiles
[n_infiles
++].language
= language
;
3860 /* Allocate space for a switch in switches. */
3865 if (n_switches_alloc
== 0)
3867 n_switches_alloc
= 16;
3868 switches
= XNEWVEC (struct switchstr
, n_switches_alloc
);
3870 else if (n_switches_alloc
== n_switches
)
3872 n_switches_alloc
*= 2;
3873 switches
= XRESIZEVEC (struct switchstr
, switches
, n_switches_alloc
);
3877 /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3878 as validated if VALIDATED and KNOWN if it is an internal switch. */
3881 save_switch (const char *opt
, size_t n_args
, const char *const *args
,
3882 bool validated
, bool known
)
3885 switches
[n_switches
].part1
= opt
+ 1;
3887 switches
[n_switches
].args
= 0;
3890 switches
[n_switches
].args
= XNEWVEC (const char *, n_args
+ 1);
3891 memcpy (switches
[n_switches
].args
, args
, n_args
* sizeof (const char *));
3892 switches
[n_switches
].args
[n_args
] = NULL
;
3895 switches
[n_switches
].live_cond
= 0;
3896 switches
[n_switches
].validated
= validated
;
3897 switches
[n_switches
].known
= known
;
3898 switches
[n_switches
].ordering
= 0;
3902 /* Set the SOURCE_DATE_EPOCH environment variable to the current time if it is
3906 set_source_date_epoch_envvar ()
3908 /* Array size is 21 = ceil(log_10(2^64)) + 1 to hold string representations
3909 of 64 bit integers. */
3910 char source_date_epoch
[21];
3915 if (tt
< (time_t) 0 || errno
!= 0)
3918 snprintf (source_date_epoch
, 21, "%llu", (unsigned long long) tt
);
3919 /* Using setenv instead of xputenv because we want the variable to remain
3920 after finalizing so that it's still set in the second run when using
3922 setenv ("SOURCE_DATE_EPOCH", source_date_epoch
, 0);
3925 /* Handle an option DECODED that is unknown to the option-processing
3929 driver_unknown_option_callback (const struct cl_decoded_option
*decoded
)
3931 const char *opt
= decoded
->arg
;
3932 if (opt
[1] == 'W' && opt
[2] == 'n' && opt
[3] == 'o' && opt
[4] == '-'
3933 && !(decoded
->errors
& CL_ERR_NEGATIVE
))
3935 /* Leave unknown -Wno-* options for the compiler proper, to be
3936 diagnosed only if there are warnings. */
3937 save_switch (decoded
->canonical_option
[0],
3938 decoded
->canonical_option_num_elements
- 1,
3939 &decoded
->canonical_option
[1], false, true);
3942 if (decoded
->opt_index
== OPT_SPECIAL_unknown
)
3944 /* Give it a chance to define it a spec file. */
3945 save_switch (decoded
->canonical_option
[0],
3946 decoded
->canonical_option_num_elements
- 1,
3947 &decoded
->canonical_option
[1], false, false);
3954 /* Handle an option DECODED that is not marked as CL_DRIVER.
3955 LANG_MASK will always be CL_DRIVER. */
3958 driver_wrong_lang_callback (const struct cl_decoded_option
*decoded
,
3959 unsigned int lang_mask ATTRIBUTE_UNUSED
)
3961 /* At this point, non-driver options are accepted (and expected to
3962 be passed down by specs) unless marked to be rejected by the
3963 driver. Options to be rejected by the driver but accepted by the
3964 compilers proper are treated just like completely unknown
3966 const struct cl_option
*option
= &cl_options
[decoded
->opt_index
];
3968 if (option
->cl_reject_driver
)
3969 error ("unrecognized command-line option %qs",
3970 decoded
->orig_option_with_args_text
);
3972 save_switch (decoded
->canonical_option
[0],
3973 decoded
->canonical_option_num_elements
- 1,
3974 &decoded
->canonical_option
[1], false, true);
3977 static const char *spec_lang
= 0;
3978 static int last_language_n_infiles
;
3980 /* Parse -foffload option argument. */
3983 handle_foffload_option (const char *arg
)
3985 const char *c
, *cur
, *n
, *next
, *end
;
3988 /* If option argument starts with '-' then no target is specified and we
3989 do not need to parse it. */
3993 end
= strchr (arg
, '=');
3995 end
= strchr (arg
, '\0');
4000 next
= strchr (cur
, ',');
4003 next
= (next
> end
) ? end
: next
;
4005 target
= XNEWVEC (char, next
- cur
+ 1);
4006 memcpy (target
, cur
, next
- cur
);
4007 target
[next
- cur
] = '\0';
4009 /* If 'disable' is passed to the option, stop parsing the option and clean
4010 the list of offload targets. */
4011 if (strcmp (target
, "disable") == 0)
4013 free (offload_targets
);
4014 offload_targets
= xstrdup ("");
4018 /* Check that GCC is configured to support the offload target. */
4019 c
= OFFLOAD_TARGETS
;
4022 n
= strchr (c
, ',');
4024 n
= strchr (c
, '\0');
4026 if (next
- cur
== n
- c
&& strncmp (target
, c
, n
- c
) == 0)
4029 c
= *n
? n
+ 1 : NULL
;
4033 fatal_error (input_location
,
4034 "GCC is not configured to support %s as offload target",
4037 if (!offload_targets
)
4039 offload_targets
= target
;
4044 /* Check that the target hasn't already presented in the list. */
4045 c
= offload_targets
;
4048 n
= strchr (c
, ':');
4050 n
= strchr (c
, '\0');
4052 if (next
- cur
== n
- c
&& strncmp (c
, target
, n
- c
) == 0)
4059 /* If duplicate is not found, append the target to the list. */
4062 size_t offload_targets_len
= strlen (offload_targets
);
4064 = XRESIZEVEC (char, offload_targets
,
4065 offload_targets_len
+ 1 + next
- cur
+ 1);
4066 offload_targets
[offload_targets_len
++] = ':';
4067 memcpy (offload_targets
+ offload_targets_len
, target
, next
- cur
+ 1);
4072 XDELETEVEC (target
);
4076 /* Handle a driver option; arguments and return value as for
4080 driver_handle_option (struct gcc_options
*opts
,
4081 struct gcc_options
*opts_set
,
4082 const struct cl_decoded_option
*decoded
,
4083 unsigned int lang_mask ATTRIBUTE_UNUSED
, int kind
,
4085 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
,
4086 diagnostic_context
*dc
,
4089 size_t opt_index
= decoded
->opt_index
;
4090 const char *arg
= decoded
->arg
;
4091 const char *compare_debug_replacement_opt
;
4092 int value
= decoded
->value
;
4093 bool validated
= false;
4094 bool do_save
= true;
4096 gcc_assert (opts
== &global_options
);
4097 gcc_assert (opts_set
== &global_options_set
);
4098 gcc_assert (kind
== DK_UNSPECIFIED
);
4099 gcc_assert (loc
== UNKNOWN_LOCATION
);
4100 gcc_assert (dc
== global_dc
);
4106 struct spec_list
*sl
;
4108 for (sl
= specs
; sl
; sl
= sl
->next
)
4109 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
4110 if (link_command_spec
)
4111 printf ("*link_command:\n%s\n\n", link_command_spec
);
4115 case OPT_dumpversion
:
4116 printf ("%s\n", spec_version
);
4119 case OPT_dumpmachine
:
4120 printf ("%s\n", spec_machine
);
4123 case OPT_dumpfullversion
:
4124 printf ("%s\n", BASEVER
);
4130 /* CPP driver cannot obtain switch from cc1_options. */
4132 add_preprocessor_option ("--version", strlen ("--version"));
4133 add_assembler_option ("--version", strlen ("--version"));
4134 add_linker_option ("--version", strlen ("--version"));
4137 case OPT__completion_
:
4139 completion
= decoded
->arg
;
4143 print_help_list
= 1;
4145 /* CPP driver cannot obtain switch from cc1_options. */
4147 add_preprocessor_option ("--help", 6);
4148 add_assembler_option ("--help", 6);
4149 add_linker_option ("--help", 6);
4153 print_subprocess_help
= 2;
4156 case OPT__target_help
:
4157 print_subprocess_help
= 1;
4159 /* CPP driver cannot obtain switch from cc1_options. */
4161 add_preprocessor_option ("--target-help", 13);
4162 add_assembler_option ("--target-help", 13);
4163 add_linker_option ("--target-help", 13);
4166 case OPT__no_sysroot_suffix
:
4167 case OPT_pass_exit_codes
:
4168 case OPT_print_search_dirs
:
4169 case OPT_print_file_name_
:
4170 case OPT_print_prog_name_
:
4171 case OPT_print_multi_lib
:
4172 case OPT_print_multi_directory
:
4173 case OPT_print_sysroot
:
4174 case OPT_print_multi_os_directory
:
4175 case OPT_print_multiarch
:
4176 case OPT_print_sysroot_headers_suffix
:
4179 /* These options set the variables specified in common.opt
4180 automatically, and do not need to be saved for spec
4185 case OPT_print_libgcc_file_name
:
4186 print_file_name
= "libgcc.a";
4190 case OPT_fuse_ld_bfd
:
4194 case OPT_fuse_ld_gold
:
4198 case OPT_fcompare_debug_second
:
4199 compare_debug_second
= 1;
4202 case OPT_fcompare_debug
:
4206 compare_debug_replacement_opt
= "-fcompare-debug=";
4208 goto compare_debug_with_arg
;
4211 compare_debug_replacement_opt
= "-fcompare-debug=-gtoggle";
4213 goto compare_debug_with_arg
;
4220 case OPT_fcompare_debug_
:
4221 compare_debug_replacement_opt
= decoded
->canonical_option
[0];
4222 compare_debug_with_arg
:
4223 gcc_assert (decoded
->canonical_option_num_elements
== 1);
4224 gcc_assert (arg
!= NULL
);
4229 if (compare_debug
< 0)
4230 compare_debug_opt
= NULL
;
4232 compare_debug_opt
= arg
;
4233 save_switch (compare_debug_replacement_opt
, 0, NULL
, validated
, true);
4234 set_source_date_epoch_envvar ();
4237 case OPT_fdiagnostics_color_
:
4238 diagnostic_color_init (dc
, value
);
4241 case OPT_fdiagnostics_urls_
:
4242 diagnostic_urls_init (dc
, value
);
4245 case OPT_fdiagnostics_format_
:
4246 diagnostic_output_format_init (dc
,
4247 (enum diagnostics_output_format
)value
);
4253 /* Pass the rest of this option to the assembler. */
4255 /* Split the argument at commas. */
4257 for (j
= 0; arg
[j
]; j
++)
4260 add_assembler_option (arg
+ prev
, j
- prev
);
4264 /* Record the part after the last comma. */
4265 add_assembler_option (arg
+ prev
, j
- prev
);
4273 /* Pass the rest of this option to the preprocessor. */
4275 /* Split the argument at commas. */
4277 for (j
= 0; arg
[j
]; j
++)
4280 add_preprocessor_option (arg
+ prev
, j
- prev
);
4284 /* Record the part after the last comma. */
4285 add_preprocessor_option (arg
+ prev
, j
- prev
);
4293 /* Split the argument at commas. */
4295 for (j
= 0; arg
[j
]; j
++)
4298 add_infile (save_string (arg
+ prev
, j
- prev
), "*");
4301 /* Record the part after the last comma. */
4302 add_infile (arg
+ prev
, "*");
4308 add_infile (arg
, "*");
4312 case OPT_Xpreprocessor
:
4313 add_preprocessor_option (arg
, strlen (arg
));
4317 case OPT_Xassembler
:
4318 add_assembler_option (arg
, strlen (arg
));
4323 /* POSIX allows separation of -l and the lib arg; canonicalize
4324 by concatenating -l with its arg */
4325 add_infile (concat ("-l", arg
, NULL
), "*");
4330 /* Similarly, canonicalize -L for linkers that may not accept
4331 separate arguments. */
4332 save_switch (concat ("-L", arg
, NULL
), 0, NULL
, validated
, true);
4337 save_switch (concat ("-F", arg
, NULL
), 0, NULL
, validated
, true);
4340 case OPT_save_temps
:
4341 if (!save_temps_flag
)
4342 save_temps_flag
= SAVE_TEMPS_DUMP
;
4346 case OPT_save_temps_
:
4347 if (strcmp (arg
, "cwd") == 0)
4348 save_temps_flag
= SAVE_TEMPS_CWD
;
4349 else if (strcmp (arg
, "obj") == 0
4350 || strcmp (arg
, "object") == 0)
4351 save_temps_flag
= SAVE_TEMPS_OBJ
;
4353 fatal_error (input_location
, "%qs is an unknown %<-save-temps%> option",
4354 decoded
->orig_option_with_args_text
);
4355 save_temps_overrides_dumpdir
= true;
4360 dumpdir
= xstrdup (arg
);
4361 save_temps_overrides_dumpdir
= false;
4366 dumpbase
= xstrdup (arg
);
4369 case OPT_dumpbase_ext
:
4370 free (dumpbase_ext
);
4371 dumpbase_ext
= xstrdup (arg
);
4374 case OPT_no_canonical_prefixes
:
4375 /* Already handled as a special case, so ignored here. */
4381 /* These options set the variables specified in common.opt
4382 automatically, but do need to be saved for spec
4388 struct user_specs
*user
= XNEW (struct user_specs
);
4390 user
->next
= (struct user_specs
*) 0;
4391 user
->filename
= arg
;
4392 if (user_specs_tail
)
4393 user_specs_tail
->next
= user
;
4395 user_specs_head
= user
;
4396 user_specs_tail
= user
;
4402 target_system_root
= arg
;
4403 target_system_root_changed
= 1;
4408 if (report_times_to_file
)
4409 fclose (report_times_to_file
);
4410 report_times_to_file
= fopen (arg
, "a");
4416 This is similar to -v except that there is no execution
4417 of the commands and the echoed arguments are quoted. It
4418 is intended for use in shell scripts to capture the
4419 driver-generated command line. */
4420 verbose_only_flag
++;
4427 size_t len
= strlen (arg
);
4429 /* Catch the case where the user has forgotten to append a
4430 directory separator to the path. Note, they may be using
4431 -B to add an executable name prefix, eg "i386-elf-", in
4432 order to distinguish between multiple installations of
4433 GCC in the same directory. Hence we must check to see
4434 if appending a directory separator actually makes a
4435 valid directory name. */
4436 if (!IS_DIR_SEPARATOR (arg
[len
- 1])
4437 && is_directory (arg
, false))
4439 char *tmp
= XNEWVEC (char, len
+ 2);
4441 tmp
[len
] = DIR_SEPARATOR
;
4446 add_prefix (&exec_prefixes
, arg
, NULL
,
4447 PREFIX_PRIORITY_B_OPT
, 0, 0);
4448 add_prefix (&startfile_prefixes
, arg
, NULL
,
4449 PREFIX_PRIORITY_B_OPT
, 0, 0);
4450 add_prefix (&include_prefixes
, arg
, NULL
,
4451 PREFIX_PRIORITY_B_OPT
, 0, 0);
4462 if (!strcmp (spec_lang
, "none"))
4463 /* Suppress the warning if -xnone comes after the last input
4464 file, because alternate command interfaces like g++ might
4465 find it useful to place -xnone after each input file. */
4468 last_language_n_infiles
= n_infiles
;
4474 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4475 arg
= convert_filename (arg
, ! have_c
, 0);
4478 /* On some systems, ld cannot handle "-o" without a space. So
4479 split the option from its argument. */
4480 save_switch ("-o", 1, &arg
, validated
, true);
4483 #ifdef ENABLE_DEFAULT_PIE
4485 /* -pie is turned on by default. */
4488 case OPT_static_libgcc
:
4489 case OPT_shared_libgcc
:
4490 case OPT_static_libgfortran
:
4491 case OPT_static_libstdc__
:
4492 /* These are always valid, since gcc.c itself understands the
4493 first two, gfortranspec.c understands -static-libgfortran and
4494 g++spec.c understands -static-libstdc++ */
4503 handle_foffload_option (arg
);
4507 /* Various driver options need no special processing at this
4508 point, having been handled in a prescan above or being
4509 handled by specs. */
4514 save_switch (decoded
->canonical_option
[0],
4515 decoded
->canonical_option_num_elements
- 1,
4516 &decoded
->canonical_option
[1], validated
, true);
4520 /* Return true if F2 is F1 followed by a single suffix, i.e., by a
4521 period and additional characters other than a period. */
4524 adds_single_suffix_p (const char *f2
, const char *f1
)
4526 size_t len
= strlen (f1
);
4528 return (strncmp (f1
, f2
, len
) == 0
4530 && strchr (f2
+ len
+ 1, '.') == NULL
);
4533 /* Put the driver's standard set of option handlers in *HANDLERS. */
4536 set_option_handlers (struct cl_option_handlers
*handlers
)
4538 handlers
->unknown_option_callback
= driver_unknown_option_callback
;
4539 handlers
->wrong_lang_callback
= driver_wrong_lang_callback
;
4540 handlers
->num_handlers
= 3;
4541 handlers
->handlers
[0].handler
= driver_handle_option
;
4542 handlers
->handlers
[0].mask
= CL_DRIVER
;
4543 handlers
->handlers
[1].handler
= common_handle_option
;
4544 handlers
->handlers
[1].mask
= CL_COMMON
;
4545 handlers
->handlers
[2].handler
= target_handle_option
;
4546 handlers
->handlers
[2].mask
= CL_TARGET
;
4550 /* Return the index into infiles for the single non-library
4551 non-lto-wpa input file, -1 if there isn't any, or -2 if there is
4554 single_input_file_index ()
4558 for (int i
= 0; i
< n_infiles
; i
++)
4560 if (infiles
[i
].language
4561 && (infiles
[i
].language
[0] == '*'
4563 && strcmp (infiles
[i
].language
, "lto") == 0)))
4575 /* Create the vector `switches' and its contents.
4576 Store its length in `n_switches'. */
4579 process_command (unsigned int decoded_options_count
,
4580 struct cl_decoded_option
*decoded_options
)
4584 char *tooldir_prefix
, *tooldir_prefix2
;
4585 char *(*get_relative_prefix
) (const char *, const char *,
4586 const char *) = NULL
;
4587 struct cl_option_handlers handlers
;
4590 gcc_exec_prefix
= env
.get ("GCC_EXEC_PREFIX");
4594 added_libraries
= 0;
4596 /* Figure compiler version from version string. */
4598 compiler_version
= temp1
= xstrdup (version_string
);
4600 for (; *temp1
; ++temp1
)
4609 /* Handle any -no-canonical-prefixes flag early, to assign the function
4610 that builds relative prefixes. This function creates default search
4611 paths that are needed later in normal option handling. */
4613 for (j
= 1; j
< decoded_options_count
; j
++)
4615 if (decoded_options
[j
].opt_index
== OPT_no_canonical_prefixes
)
4617 get_relative_prefix
= make_relative_prefix_ignore_links
;
4621 if (! get_relative_prefix
)
4622 get_relative_prefix
= make_relative_prefix
;
4624 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
4625 see if we can create it from the pathname specified in
4626 decoded_options[0].arg. */
4628 gcc_libexec_prefix
= standard_libexec_prefix
;
4630 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
4631 if (!gcc_exec_prefix
)
4633 gcc_exec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4634 standard_bindir_prefix
,
4635 standard_exec_prefix
);
4636 gcc_libexec_prefix
= get_relative_prefix (decoded_options
[0].arg
,
4637 standard_bindir_prefix
,
4638 standard_libexec_prefix
);
4639 if (gcc_exec_prefix
)
4640 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
4644 /* make_relative_prefix requires a program name, but
4645 GCC_EXEC_PREFIX is typically a directory name with a trailing
4646 / (which is ignored by make_relative_prefix), so append a
4648 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
4649 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
4650 standard_exec_prefix
,
4651 standard_libexec_prefix
);
4653 /* The path is unrelocated, so fallback to the original setting. */
4654 if (!gcc_libexec_prefix
)
4655 gcc_libexec_prefix
= standard_libexec_prefix
;
4661 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
4662 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
4663 or an automatically created GCC_EXEC_PREFIX from
4664 decoded_options[0].arg. */
4666 /* Do language-specific adjustment/addition of flags. */
4667 lang_specific_driver (&decoded_options
, &decoded_options_count
,
4670 if (gcc_exec_prefix
)
4672 int len
= strlen (gcc_exec_prefix
);
4674 if (len
> (int) sizeof ("/lib/gcc/") - 1
4675 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
4677 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
4678 if (IS_DIR_SEPARATOR (*temp
)
4679 && filename_ncmp (temp
+ 1, "lib", 3) == 0
4680 && IS_DIR_SEPARATOR (temp
[4])
4681 && filename_ncmp (temp
+ 5, "gcc", 3) == 0)
4682 len
-= sizeof ("/lib/gcc/") - 1;
4685 set_std_prefix (gcc_exec_prefix
, len
);
4686 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
4687 PREFIX_PRIORITY_LAST
, 0, 0);
4688 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
4689 PREFIX_PRIORITY_LAST
, 0, 0);
4692 /* COMPILER_PATH and LIBRARY_PATH have values
4693 that are lists of directory names with colons. */
4695 temp
= env
.get ("COMPILER_PATH");
4698 const char *startp
, *endp
;
4699 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4701 startp
= endp
= temp
;
4704 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4706 strncpy (nstore
, startp
, endp
- startp
);
4708 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4709 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4711 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4712 nstore
[endp
- startp
+ 1] = 0;
4715 nstore
[endp
- startp
] = 0;
4716 add_prefix (&exec_prefixes
, nstore
, 0,
4717 PREFIX_PRIORITY_LAST
, 0, 0);
4718 add_prefix (&include_prefixes
, nstore
, 0,
4719 PREFIX_PRIORITY_LAST
, 0, 0);
4722 endp
= startp
= endp
+ 1;
4729 temp
= env
.get (LIBRARY_PATH_ENV
);
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 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
4762 temp
= env
.get ("LPATH");
4763 if (temp
&& *cross_compile
== '0')
4765 const char *startp
, *endp
;
4766 char *nstore
= (char *) alloca (strlen (temp
) + 3);
4768 startp
= endp
= temp
;
4771 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
4773 strncpy (nstore
, startp
, endp
- startp
);
4775 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
4776 else if (!IS_DIR_SEPARATOR (endp
[-1]))
4778 nstore
[endp
- startp
] = DIR_SEPARATOR
;
4779 nstore
[endp
- startp
+ 1] = 0;
4782 nstore
[endp
- startp
] = 0;
4783 add_prefix (&startfile_prefixes
, nstore
, NULL
,
4784 PREFIX_PRIORITY_LAST
, 0, 1);
4787 endp
= startp
= endp
+ 1;
4794 /* Process the options and store input files and switches in their
4797 last_language_n_infiles
= -1;
4799 set_option_handlers (&handlers
);
4801 for (j
= 1; j
< decoded_options_count
; j
++)
4803 switch (decoded_options
[j
].opt_index
)
4815 for (j
= 1; j
< decoded_options_count
; j
++)
4817 if (decoded_options
[j
].opt_index
== OPT_SPECIAL_input_file
)
4819 const char *arg
= decoded_options
[j
].arg
;
4821 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4822 arg
= convert_filename (arg
, 0, access (arg
, F_OK
));
4824 add_infile (arg
, spec_lang
);
4829 read_cmdline_option (&global_options
, &global_options_set
,
4830 decoded_options
+ j
, UNKNOWN_LOCATION
,
4831 CL_DRIVER
, &handlers
, global_dc
);
4834 /* If the user didn't specify any, default to all configured offload
4836 if (ENABLE_OFFLOADING
&& offload_targets
== NULL
)
4838 handle_foffload_option (OFFLOAD_TARGETS
);
4839 #if OFFLOAD_DEFAULTED
4840 offload_targets_default
= true;
4845 && strcmp (output_file
, "-") != 0
4846 && strcmp (output_file
, HOST_BIT_BUCKET
) != 0)
4849 for (i
= 0; i
< n_infiles
; i
++)
4850 if ((!infiles
[i
].language
|| infiles
[i
].language
[0] != '*')
4851 && canonical_filename_eq (infiles
[i
].name
, output_file
))
4852 fatal_error (input_location
,
4853 "input file %qs is the same as output file",
4857 if (output_file
!= NULL
&& output_file
[0] == '\0')
4858 fatal_error (input_location
, "output filename may not be empty");
4860 /* -dumpdir and -save-temps=* both specify the location of aux/dump
4861 outputs; the one that appears last prevails. When compiling
4862 multiple sources, an explicit dumpbase (minus -ext) may be
4863 combined with an explicit or implicit dumpdir, whereas when
4864 linking, a specified or implied link output name (minus
4865 extension) may be combined with a prevailing -save-temps=* or an
4866 otherwise implied dumpdir, but not override a prevailing
4867 -dumpdir. Primary outputs (e.g., linker output when linking
4868 without -o, or .i, .s or .o outputs when processing multiple
4869 inputs with -E, -S or -c, respectively) are NOT affected by these
4870 -save-temps=/-dump* options, always landing in the current
4871 directory and with the same basename as the input when an output
4872 name is not given, but when they're intermediate outputs, they
4873 are named like other aux outputs, so the options affect their
4876 Here are some examples. There are several more in the
4877 documentation of -o and -dump*, and some quite exhaustive tests
4878 in gcc.misc-tests/outputs.exp.
4880 When compiling any number of sources, no -dump* nor
4881 -save-temps=*, all outputs in cwd without prefix:
4883 # gcc -c b.c -gsplit-dwarf
4884 -> cc1 [-dumpdir ./] -dumpbase b.c -dumpbase-ext .c # b.o b.dwo
4886 # gcc -c b.c d.c -gsplit-dwarf
4887 -> cc1 [-dumpdir ./] -dumpbase b.c -dumpbase-ext .c # b.o b.dwo
4888 && cc1 [-dumpdir ./] -dumpbase d.c -dumpbase-ext .c # d.o d.dwo
4890 When compiling and linking, no -dump* nor -save-temps=*, .o
4891 outputs are temporary, aux outputs land in the dir of the output,
4892 prefixed with the basename of the linker output:
4894 # gcc b.c d.c -o ab -gsplit-dwarf
4895 -> cc1 -dumpdir ab- -dumpbase b.c -dumpbase-ext .c # ab-b.dwo
4896 && cc1 -dumpdir ab- -dumpbase d.c -dumpbase-ext .c # ab-d.dwo
4899 # gcc b.c d.c [-o a.out] -gsplit-dwarf
4900 -> cc1 -dumpdir a- -dumpbase b.c -dumpbase-ext .c # a-b.dwo
4901 && cc1 -dumpdir a- -dumpbase d.c -dumpbase-ext .c # a-d.dwo
4902 && link ... [-o a.out]
4904 When compiling and linking, a prevailing -dumpdir fully overrides
4905 the prefix of aux outputs given by the output name:
4907 # gcc -dumpdir f b.c d.c -gsplit-dwarf [-o [dir/]whatever]
4908 -> cc1 -dumpdir f -dumpbase b.c -dumpbase-ext .c # fb.dwo
4909 && cc1 -dumpdir f -dumpbase d.c -dumpbase-ext .c # fd.dwo
4910 && link ... [-o whatever]
4912 When compiling multiple inputs, an explicit -dumpbase is combined
4913 with -dumpdir, affecting aux outputs, but not the .o outputs:
4915 # gcc -dumpdir f -dumpbase g- b.c d.c -gsplit-dwarf -c
4916 -> cc1 -dumpdir fg- -dumpbase b.c -dumpbase-ext .c # b.o fg-b.dwo
4917 && cc1 -dumpdir fg- -dumpbase d.c -dumpbase-ext .c # d.o fg-d.dwo
4919 When compiling and linking with -save-temps, the .o outputs that
4920 would have been temporary become aux outputs, so they get
4921 affected by -dump* flags:
4923 # gcc -dumpdir f -dumpbase g- -save-temps b.c d.c
4924 -> cc1 -dumpdir fg- -dumpbase b.c -dumpbase-ext .c # fg-b.o
4925 && cc1 -dumpdir fg- -dumpbase d.c -dumpbase-ext .c # fg-d.o
4928 If -save-temps=* prevails over -dumpdir, however, the explicit
4929 -dumpdir is discarded, as if it wasn't there. The basename of
4930 the implicit linker output, a.out or a.exe, becomes a- as the aux
4931 output prefix for all compilations:
4933 # gcc [-dumpdir f] -save-temps=cwd b.c d.c
4934 -> cc1 -dumpdir a- -dumpbase b.c -dumpbase-ext .c # a-b.o
4935 && cc1 -dumpdir a- -dumpbase d.c -dumpbase-ext .c # a-d.o
4938 A single -dumpbase, applying to multiple inputs, overrides the
4939 linker output name, implied or explicit, as the aux output prefix:
4941 # gcc [-dumpdir f] -dumpbase g- -save-temps=cwd b.c d.c
4942 -> cc1 -dumpdir g- -dumpbase b.c -dumpbase-ext .c # g-b.o
4943 && cc1 -dumpdir g- -dumpbase d.c -dumpbase-ext .c # g-d.o
4946 # gcc [-dumpdir f] -dumpbase g- -save-temps=cwd b.c d.c -o dir/h.out
4947 -> cc1 -dumpdir g- -dumpbase b.c -dumpbase-ext .c # g-b.o
4948 && cc1 -dumpdir g- -dumpbase d.c -dumpbase-ext .c # g-d.o
4949 && link -o dir/h.out
4951 Now, if the linker output is NOT overridden as a prefix, but
4952 -save-temps=* overrides implicit or explicit -dumpdir, the
4953 effective dump dir combines the dir selected by the -save-temps=*
4954 option with the basename of the specified or implied link output:
4956 # gcc [-dumpdir f] -save-temps=cwd b.c d.c -o dir/h.out
4957 -> cc1 -dumpdir h- -dumpbase b.c -dumpbase-ext .c # h-b.o
4958 && cc1 -dumpdir h- -dumpbase d.c -dumpbase-ext .c # h-d.o
4959 && link -o dir/h.out
4961 # gcc [-dumpdir f] -save-temps=obj b.c d.c -o dir/h.out
4962 -> cc1 -dumpdir dir/h- -dumpbase b.c -dumpbase-ext .c # dir/h-b.o
4963 && cc1 -dumpdir dir/h- -dumpbase d.c -dumpbase-ext .c # dir/h-d.o
4964 && link -o dir/h.out
4966 But then again, a single -dumpbase applying to multiple inputs
4967 gets used instead of the linker output basename in the combined
4970 # gcc [-dumpdir f] -dumpbase g- -save-temps=obj b.c d.c -o dir/h.out
4971 -> cc1 -dumpdir dir/g- -dumpbase b.c -dumpbase-ext .c # dir/g-b.o
4972 && cc1 -dumpdir dir/g- -dumpbase d.c -dumpbase-ext .c # dir/g-d.o
4973 && link -o dir/h.out
4975 With a single input being compiled, the output basename does NOT
4976 affect the dumpdir prefix.
4978 # gcc -save-temps=obj b.c -gsplit-dwarf -c -o dir/b.o
4979 -> cc1 -dumpdir dir/ -dumpbase b.c -dumpbase-ext .c # dir/b.o dir/b.dwo
4981 but when compiling and linking even a single file, it does:
4983 # gcc -save-temps=obj b.c -o dir/h.out
4984 -> cc1 -dumpdir dir/h- -dumpbase b.c -dumpbase-ext .c # dir/h-b.o
4986 unless an explicit -dumpdir prevails:
4988 # gcc -save-temps[=obj] -dumpdir g- b.c -o dir/h.out
4989 -> cc1 -dumpdir g- -dumpbase b.c -dumpbase-ext .c # g-b.o
4993 bool explicit_dumpdir
= dumpdir
;
4995 if (!save_temps_overrides_dumpdir
&& explicit_dumpdir
)
5000 /* If -save-temps=obj and -o name, create the prefix to use for %b.
5001 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
5002 else if (save_temps_flag
!= SAVE_TEMPS_CWD
&& output_file
!= NULL
)
5006 temp
= lbasename (output_file
);
5007 if (temp
!= output_file
)
5008 dumpdir
= xstrndup (output_file
,
5009 strlen (output_file
) - strlen (temp
));
5017 if (save_temps_flag
)
5018 save_temps_flag
= SAVE_TEMPS_DUMP
;
5020 /* If there is any pathname component in an explicit -dumpbase, it
5021 overrides dumpdir entirely, so discard it right away. Although
5022 the presence of an explicit -dumpdir matters for the driver, it
5023 shouldn't matter for other processes, that get all that's needed
5024 from the -dumpdir and -dumpbase always passed to them. */
5025 if (dumpdir
&& dumpbase
&& lbasename (dumpbase
) != dumpbase
)
5031 /* Check that dumpbase_ext matches the end of dumpbase, drop it
5033 if (dumpbase_ext
&& dumpbase
&& *dumpbase
)
5035 int lendb
= strlen (dumpbase
);
5036 int lendbx
= strlen (dumpbase_ext
);
5038 /* -dumpbase-ext must be a suffix proper; discard it if it
5039 matches all of -dumpbase, as that would make for an empty
5042 || strcmp (dumpbase
+ lendb
- lendbx
, dumpbase_ext
) != 0)
5044 free (dumpbase_ext
);
5045 dumpbase_ext
= NULL
;
5049 /* -dumpbase with multiple sources goes into dumpdir. With a single
5050 source, it does only if linking and if dumpdir was not explicitly
5052 if (dumpbase
&& *dumpbase
5053 && (single_input_file_index () == -2
5054 || (!have_c
&& !explicit_dumpdir
)))
5059 /* We checked that they match above. */
5060 dumpbase
[strlen (dumpbase
) - strlen (dumpbase_ext
)] = '\0';
5063 prefix
= concat (dumpdir
, dumpbase
, "-", NULL
);
5065 prefix
= concat (dumpbase
, "-", NULL
);
5069 free (dumpbase_ext
);
5070 dumpbase
= dumpbase_ext
= NULL
;
5072 dumpdir_trailing_dash_added
= true;
5075 /* If dumpbase was not brought into dumpdir but we're linking, bring
5076 output_file into dumpdir unless dumpdir was explicitly specified.
5077 The test for !explicit_dumpdir is further below, because we want
5078 to use the obase computation for a ghost outbase, passed to
5079 GCC_COLLECT_OPTIONS. */
5080 else if (!have_c
&& (!explicit_dumpdir
|| (dumpbase
&& !*dumpbase
)))
5082 /* If we get here, we know dumpbase was not specified, or it was
5083 specified as an empty string. If it was anything else, it
5084 would have combined with dumpdir above, because the condition
5085 for dumpbase to be used when present is broader than the
5086 condition that gets us here. */
5087 gcc_assert (!dumpbase
|| !*dumpbase
);
5090 char *tofree
= NULL
;
5091 if (!output_file
|| not_actual_file_p (output_file
))
5095 obase
= lbasename (output_file
);
5096 size_t blen
= strlen (obase
), xlen
;
5097 /* Drop the suffix if it's dumpbase_ext, if given,
5098 otherwise .exe or the target executable suffix, or if the
5099 output was explicitly named a.out, but not otherwise. */
5101 ? (blen
> (xlen
= strlen (dumpbase_ext
))
5102 && strcmp ((temp
= (obase
+ blen
- xlen
)),
5104 : ((temp
= strrchr (obase
+ 1, '.'))
5105 && (xlen
= strlen (temp
))
5106 && (strcmp (temp
, ".exe") == 0
5107 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
5108 || strcmp (temp
, TARGET_EXECUTABLE_SUFFIX
) == 0
5110 || strcmp (obase
, "a.out") == 0)))
5112 tofree
= xstrndup (obase
, blen
- xlen
);
5117 /* We wish to save this basename to the -dumpdir passed through
5118 GCC_COLLECT_OPTIONS within maybe_run_linker, for e.g. LTO,
5119 but we do NOT wish to add it to e.g. %b, so we keep
5120 outbase_length as zero. */
5121 gcc_assert (!outbase
);
5124 /* If we're building [dir1/]foo[.exe] out of a single input
5125 [dir2/]foo.c that shares the same basename, dump to
5126 [dir2/]foo.c.* rather than duplicating the basename into
5127 [dir2/]foo-foo.c.*. */
5130 || ((idxin
= single_input_file_index ()) >= 0
5131 && adds_single_suffix_p (lbasename (infiles
[idxin
].name
),
5134 if (obase
== tofree
)
5138 outbase
= xstrdup (obase
);
5141 obase
= tofree
= NULL
;
5147 char *p
= concat (dumpdir
, obase
, "-", NULL
);
5152 dumpdir
= concat (obase
, "-", NULL
);
5154 dumpdir_trailing_dash_added
= true;
5157 obase
= tofree
= NULL
;
5160 if (!explicit_dumpdir
|| dumpbase
)
5162 /* Absent -dumpbase and present -dumpbase-ext have been applied
5163 to the linker output name, so compute fresh defaults for each
5165 free (dumpbase_ext
);
5166 dumpbase_ext
= NULL
;
5170 /* Now, if we're compiling, or if we haven't used the dumpbase
5171 above, then outbase (%B) is derived from dumpbase, if given, or
5172 from the output name, given or implied. We can't precompute
5173 implied output names, but that's ok, since they're derived from
5174 input names. Just make sure we skip this if dumpbase is the
5175 empty string: we want to use input names then, so don't set
5177 if ((dumpbase
|| have_c
)
5178 && !(dumpbase
&& !*dumpbase
))
5180 gcc_assert (!outbase
);
5184 gcc_assert (single_input_file_index () != -2);
5185 /* We do not want lbasename here; dumpbase with dirnames
5186 overrides dumpdir entirely, even if dumpdir is
5189 /* We've already checked above that the suffix matches. */
5190 outbase
= xstrndup (dumpbase
,
5191 strlen (dumpbase
) - strlen (dumpbase_ext
));
5193 outbase
= xstrdup (dumpbase
);
5195 else if (output_file
&& !not_actual_file_p (output_file
))
5197 outbase
= xstrdup (lbasename (output_file
));
5198 char *p
= strrchr (outbase
+ 1, '.');
5204 outbase_length
= strlen (outbase
);
5207 /* If there is any pathname component in an explicit -dumpbase, do
5208 not use dumpdir, but retain it to pass it on to the compiler. */
5210 dumpdir_length
= strlen (dumpdir
);
5214 /* Check that dumpbase_ext, if still present, still matches the end
5215 of dumpbase, if present, and drop it otherwise. We only retained
5216 it above when dumpbase was absent to maybe use it to drop the
5217 extension from output_name before combining it with dumpdir. We
5218 won't deal with -dumpbase-ext when -dumpbase is not explicitly
5219 given, even if just to activate backward-compatible dumpbase:
5220 dropping it on the floor is correct, expected and documented
5221 behavior. Attempting to deal with a -dumpbase-ext that might
5222 match the end of some input filename, or of the combination of
5223 the output basename with the suffix of the input filename,
5224 possible with an intermediate .gk extension for -fcompare-debug,
5225 is just calling for trouble. */
5228 if (!dumpbase
|| !*dumpbase
)
5230 free (dumpbase_ext
);
5231 dumpbase_ext
= NULL
;
5234 gcc_assert (strcmp (dumpbase
+ strlen (dumpbase
)
5235 - strlen (dumpbase_ext
), dumpbase_ext
) == 0);
5238 if (save_temps_flag
&& use_pipes
)
5240 /* -save-temps overrides -pipe, so that temp files are produced */
5241 if (save_temps_flag
)
5242 warning (0, "%<-pipe%> ignored because %<-save-temps%> specified");
5248 const char *gcd
= env
.get ("GCC_COMPARE_DEBUG");
5250 if (gcd
&& gcd
[0] == '-')
5253 compare_debug_opt
= gcd
;
5255 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
5258 compare_debug_opt
= "-gtoggle";
5261 else if (compare_debug
< 0)
5264 gcc_assert (!compare_debug_opt
);
5267 /* Set up the search paths. We add directories that we expect to
5268 contain GNU Toolchain components before directories specified by
5269 the machine description so that we will find GNU components (like
5270 the GNU assembler) before those of the host system. */
5272 /* If we don't know where the toolchain has been installed, use the
5273 configured-in locations. */
5274 if (!gcc_exec_prefix
)
5277 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
5278 PREFIX_PRIORITY_LAST
, 1, 0);
5279 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
5280 PREFIX_PRIORITY_LAST
, 2, 0);
5281 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
5282 PREFIX_PRIORITY_LAST
, 2, 0);
5284 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
5285 PREFIX_PRIORITY_LAST
, 1, 0);
5288 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
5289 tooldir_prefix2
= concat (tooldir_base_prefix
, spec_machine
,
5290 dir_separator_str
, NULL
);
5292 /* Look for tools relative to the location from which the driver is
5293 running, or, if that is not available, the configured prefix. */
5295 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
5296 spec_host_machine
, dir_separator_str
, spec_version
,
5297 accel_dir_suffix
, dir_separator_str
, tooldir_prefix2
, NULL
);
5298 free (tooldir_prefix2
);
5300 add_prefix (&exec_prefixes
,
5301 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
5302 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
5303 add_prefix (&startfile_prefixes
,
5304 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
5305 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
5306 free (tooldir_prefix
);
5308 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
5309 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
5310 then consider it to relocate with the rest of the GCC installation
5311 if GCC_EXEC_PREFIX is set.
5312 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
5313 if (target_system_root
&& !target_system_root_changed
&& gcc_exec_prefix
)
5315 char *tmp_prefix
= get_relative_prefix (decoded_options
[0].arg
,
5316 standard_bindir_prefix
,
5317 target_system_root
);
5318 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
5320 target_system_root
= tmp_prefix
;
5321 target_system_root_changed
= 1;
5326 /* More prefixes are enabled in main, after we read the specs file
5327 and determine whether this is cross-compilation or not. */
5329 if (n_infiles
!= 0 && n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
5330 warning (0, "%<-x %s%> after last input file has no effect", spec_lang
);
5332 /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
5333 environment variable. */
5334 if (compare_debug
== 2 || compare_debug
== 3)
5336 const char *opt
= concat ("-fcompare-debug=", compare_debug_opt
, NULL
);
5337 save_switch (opt
, 0, NULL
, false, true);
5341 /* Ensure we only invoke each subprocess once. */
5343 && (print_subprocess_help
|| print_help_list
|| print_version
))
5345 /* Create a dummy input file, so that we can pass
5346 the help option on to the various sub-processes. */
5347 add_infile ("help-dummy", "c");
5350 /* Decide if undefined variable references are allowed in specs. */
5352 /* -v alone is safe. --version and --help alone or together are safe. Note
5353 that -v would make them unsafe, as they'd then be run for subprocesses as
5354 well, the location of which might depend on variables possibly coming
5355 from self-specs. Note also that the command name is counted in
5356 decoded_options_count. */
5358 unsigned help_version_count
= 0;
5361 help_version_count
++;
5363 if (print_help_list
)
5364 help_version_count
++;
5366 spec_undefvar_allowed
=
5367 ((verbose_flag
&& decoded_options_count
== 2)
5368 || help_version_count
== decoded_options_count
- 1);
5371 switches
[n_switches
].part1
= 0;
5373 infiles
[n_infiles
].name
= 0;
5376 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
5377 and place that in the environment. */
5380 set_collect_gcc_options (void)
5385 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5387 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
5388 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5391 for (i
= 0; (int) i
< n_switches
; i
++)
5393 const char *const *args
;
5396 obstack_grow (&collect_obstack
, " ", 1);
5400 /* Ignore elided switches. */
5401 if ((switches
[i
].live_cond
5402 & (SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
))
5406 obstack_grow (&collect_obstack
, "'-", 2);
5407 q
= switches
[i
].part1
;
5408 while ((p
= strchr (q
, '\'')))
5410 obstack_grow (&collect_obstack
, q
, p
- q
);
5411 obstack_grow (&collect_obstack
, "'\\''", 4);
5414 obstack_grow (&collect_obstack
, q
, strlen (q
));
5415 obstack_grow (&collect_obstack
, "'", 1);
5417 for (args
= switches
[i
].args
; args
&& *args
; args
++)
5419 obstack_grow (&collect_obstack
, " '", 2);
5421 while ((p
= strchr (q
, '\'')))
5423 obstack_grow (&collect_obstack
, q
, p
- q
);
5424 obstack_grow (&collect_obstack
, "'\\''", 4);
5427 obstack_grow (&collect_obstack
, q
, strlen (q
));
5428 obstack_grow (&collect_obstack
, "'", 1);
5435 obstack_grow (&collect_obstack
, " ", 1);
5438 obstack_grow (&collect_obstack
, "'-dumpdir' '", 12);
5442 while ((p
= strchr (q
, '\'')))
5444 obstack_grow (&collect_obstack
, q
, p
- q
);
5445 obstack_grow (&collect_obstack
, "'\\''", 4);
5448 obstack_grow (&collect_obstack
, q
, strlen (q
));
5450 obstack_grow (&collect_obstack
, "'", 1);
5453 obstack_grow (&collect_obstack
, "\0", 1);
5454 xputenv (XOBFINISH (&collect_obstack
, char *));
5457 /* Process a spec string, accumulating and running commands. */
5459 /* These variables describe the input file name.
5460 input_file_number is the index on outfiles of this file,
5461 so that the output file name can be stored for later use by %o.
5462 input_basename is the start of the part of the input file
5463 sans all directory names, and basename_length is the number
5464 of characters starting there excluding the suffix .c or whatever. */
5466 static const char *gcc_input_filename
;
5467 static int input_file_number
;
5468 size_t input_filename_length
;
5469 static int basename_length
;
5470 static int suffixed_basename_length
;
5471 static const char *input_basename
;
5472 static const char *input_suffix
;
5473 #ifndef HOST_LACKS_INODE_NUMBERS
5474 static struct stat input_stat
;
5476 static int input_stat_set
;
5478 /* The compiler used to process the current input file. */
5479 static struct compiler
*input_file_compiler
;
5481 /* These are variables used within do_spec and do_spec_1. */
5483 /* Nonzero if an arg has been started and not yet terminated
5484 (with space, tab or newline). */
5485 static int arg_going
;
5487 /* Nonzero means %d or %g has been seen; the next arg to be terminated
5488 is a temporary file name. */
5489 static int delete_this_arg
;
5491 /* Nonzero means %w has been seen; the next arg to be terminated
5492 is the output file name of this compilation. */
5493 static int this_is_output_file
;
5495 /* Nonzero means %s has been seen; the next arg to be terminated
5496 is the name of a library file and we should try the standard
5497 search dirs for it. */
5498 static int this_is_library_file
;
5500 /* Nonzero means %T has been seen; the next arg to be terminated
5501 is the name of a linker script and we should try all of the
5502 standard search dirs for it. If it is found insert a --script
5503 command line switch and then substitute the full path in place,
5504 otherwise generate an error message. */
5505 static int this_is_linker_script
;
5507 /* Nonzero means that the input of this command is coming from a pipe. */
5508 static int input_from_pipe
;
5510 /* Nonnull means substitute this for any suffix when outputting a switches
5512 static const char *suffix_subst
;
5514 /* If there is an argument being accumulated, terminate it and store it. */
5517 end_going_arg (void)
5523 obstack_1grow (&obstack
, 0);
5524 string
= XOBFINISH (&obstack
, const char *);
5525 if (this_is_library_file
)
5526 string
= find_file (string
);
5527 if (this_is_linker_script
)
5529 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
5531 if (full_script_path
== NULL
)
5533 error ("unable to locate default linker script %qs in the library search paths", string
);
5534 /* Script was not found on search path. */
5537 store_arg ("--script", false, false);
5538 string
= full_script_path
;
5540 store_arg (string
, delete_this_arg
, this_is_output_file
);
5541 if (this_is_output_file
)
5542 outfiles
[input_file_number
] = string
;
5548 /* Parse the WRAPPER string which is a comma separated list of the command line
5549 and insert them into the beginning of argbuf. */
5552 insert_wrapper (const char *wrapper
)
5556 char *buf
= xstrdup (wrapper
);
5558 unsigned int old_length
= argbuf
.length ();
5566 while ((p
= strchr (p
, ',')) != NULL
);
5568 argbuf
.safe_grow (old_length
+ n
, true);
5569 memmove (argbuf
.address () + n
,
5571 old_length
* sizeof (const_char_p
));
5585 while ((p
= strchr (p
, ',')) != NULL
);
5586 gcc_assert (i
== n
);
5589 /* Process the spec SPEC and run the commands specified therein.
5590 Returns 0 if the spec is successfully processed; -1 if failed. */
5593 do_spec (const char *spec
)
5597 value
= do_spec_2 (spec
, NULL
);
5599 /* Force out any unfinished command.
5600 If -pipe, this forces out the last command if it ended in `|'. */
5603 if (argbuf
.length () > 0
5604 && !strcmp (argbuf
.last (), "|"))
5607 set_collect_gcc_options ();
5609 if (argbuf
.length () > 0)
5616 /* Process the spec SPEC, with SOFT_MATCHED_PART designating the current value
5617 of a matched * pattern which may be re-injected by way of %*. */
5620 do_spec_2 (const char *spec
, const char *soft_matched_part
)
5626 delete_this_arg
= 0;
5627 this_is_output_file
= 0;
5628 this_is_library_file
= 0;
5629 this_is_linker_script
= 0;
5630 input_from_pipe
= 0;
5631 suffix_subst
= NULL
;
5633 result
= do_spec_1 (spec
, 0, soft_matched_part
);
5640 /* Process the given spec string and add any new options to the end
5641 of the switches/n_switches array. */
5644 do_option_spec (const char *name
, const char *spec
)
5646 unsigned int i
, value_count
, value_len
;
5647 const char *p
, *q
, *value
;
5648 char *tmp_spec
, *tmp_spec_p
;
5650 if (configure_default_options
[0].name
== NULL
)
5653 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
5654 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
5656 if (i
== ARRAY_SIZE (configure_default_options
))
5659 value
= configure_default_options
[i
].value
;
5660 value_len
= strlen (value
);
5662 /* Compute the size of the final spec. */
5665 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
5671 /* Replace each %(VALUE) by the specified value. */
5672 tmp_spec
= (char *) alloca (strlen (spec
) + 1
5673 + value_count
* (value_len
- strlen ("%(VALUE)")));
5674 tmp_spec_p
= tmp_spec
;
5676 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
5678 memcpy (tmp_spec_p
, q
, p
- q
);
5679 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
5680 memcpy (tmp_spec_p
, value
, value_len
);
5681 tmp_spec_p
+= value_len
;
5682 q
= p
+ strlen ("%(VALUE)");
5684 strcpy (tmp_spec_p
, q
);
5686 do_self_spec (tmp_spec
);
5689 /* Process the given spec string and add any new options to the end
5690 of the switches/n_switches array. */
5693 do_self_spec (const char *spec
)
5697 do_spec_2 (spec
, NULL
);
5698 do_spec_1 (" ", 0, NULL
);
5700 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
5701 do_self_specs adds the replacements to switches array, so it shouldn't
5702 be processed afterwards. */
5703 for (i
= 0; i
< n_switches
; i
++)
5704 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
5705 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
5707 if (argbuf
.length () > 0)
5709 const char **argbuf_copy
;
5710 struct cl_decoded_option
*decoded_options
;
5711 struct cl_option_handlers handlers
;
5712 unsigned int decoded_options_count
;
5715 /* Create a copy of argbuf with a dummy argv[0] entry for
5716 decode_cmdline_options_to_array. */
5717 argbuf_copy
= XNEWVEC (const char *,
5718 argbuf
.length () + 1);
5719 argbuf_copy
[0] = "";
5720 memcpy (argbuf_copy
+ 1, argbuf
.address (),
5721 argbuf
.length () * sizeof (const char *));
5723 decode_cmdline_options_to_array (argbuf
.length () + 1,
5725 CL_DRIVER
, &decoded_options
,
5726 &decoded_options_count
);
5729 set_option_handlers (&handlers
);
5731 for (j
= 1; j
< decoded_options_count
; j
++)
5733 switch (decoded_options
[j
].opt_index
)
5735 case OPT_SPECIAL_input_file
:
5736 /* Specs should only generate options, not input
5738 if (strcmp (decoded_options
[j
].arg
, "-") != 0)
5739 fatal_error (input_location
,
5740 "switch %qs does not start with %<-%>",
5741 decoded_options
[j
].arg
);
5743 fatal_error (input_location
,
5744 "spec-generated switch is just %<-%>");
5747 case OPT_fcompare_debug_second
:
5748 case OPT_fcompare_debug
:
5749 case OPT_fcompare_debug_
:
5751 /* Avoid duplicate processing of some options from
5752 compare-debug specs; just save them here. */
5753 save_switch (decoded_options
[j
].canonical_option
[0],
5754 (decoded_options
[j
].canonical_option_num_elements
5756 &decoded_options
[j
].canonical_option
[1], false, true);
5760 read_cmdline_option (&global_options
, &global_options_set
,
5761 decoded_options
+ j
, UNKNOWN_LOCATION
,
5762 CL_DRIVER
, &handlers
, global_dc
);
5767 free (decoded_options
);
5770 switches
[n_switches
].part1
= 0;
5774 /* Callback for processing %D and %I specs. */
5776 struct spec_path_info
{
5781 bool separate_options
;
5785 spec_path (char *path
, void *data
)
5787 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
5791 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
5794 if (info
->append_len
!= 0)
5796 len
= strlen (path
);
5797 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
5800 if (!is_directory (path
, true))
5803 do_spec_1 (info
->option
, 1, NULL
);
5804 if (info
->separate_options
)
5805 do_spec_1 (" ", 0, NULL
);
5807 if (info
->append_len
== 0)
5809 len
= strlen (path
);
5810 save
= path
[len
- 1];
5811 if (IS_DIR_SEPARATOR (path
[len
- 1]))
5812 path
[len
- 1] = '\0';
5815 do_spec_1 (path
, 1, NULL
);
5816 do_spec_1 (" ", 0, NULL
);
5818 /* Must not damage the original path. */
5819 if (info
->append_len
== 0)
5820 path
[len
- 1] = save
;
5825 /* True if we should compile INFILE. */
5828 compile_input_file_p (struct infile
*infile
)
5830 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5831 if (infile
->incompiler
== input_file_compiler
)
5836 /* Process each member of VEC as a spec. */
5839 do_specs_vec (vec
<char_p
> vec
)
5844 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
5846 do_spec_1 (opt
, 1, NULL
);
5847 /* Make each accumulated option a separate argument. */
5848 do_spec_1 (" ", 0, NULL
);
5852 /* Add options passed via -Xassembler or -Wa to COLLECT_AS_OPTIONS. */
5855 putenv_COLLECT_AS_OPTIONS (vec
<char_p
> vec
)
5857 if (vec
.is_empty ())
5860 obstack_init (&collect_obstack
);
5861 obstack_grow (&collect_obstack
, "COLLECT_AS_OPTIONS=",
5862 strlen ("COLLECT_AS_OPTIONS="));
5867 FOR_EACH_VEC_ELT (vec
, ix
, opt
)
5869 obstack_1grow (&collect_obstack
, '\'');
5870 obstack_grow (&collect_obstack
, opt
, strlen (opt
));
5871 obstack_1grow (&collect_obstack
, '\'');
5872 if (ix
< vec
.length () - 1)
5873 obstack_1grow(&collect_obstack
, ' ');
5876 obstack_1grow (&collect_obstack
, '\0');
5877 xputenv (XOBFINISH (&collect_obstack
, char *));
5880 /* Process the sub-spec SPEC as a portion of a larger spec.
5881 This is like processing a whole spec except that we do
5882 not initialize at the beginning and we do not supply a
5883 newline by default at the end.
5884 INSWITCH nonzero means don't process %-sequences in SPEC;
5885 in this case, % is treated as an ordinary character.
5886 This is used while substituting switches.
5887 INSWITCH nonzero also causes SPC not to terminate an argument.
5889 Value is zero unless a line was finished
5890 and the command on that line reported an error. */
5893 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5895 const char *p
= spec
;
5900 /* If it's an empty string argument to a switch, keep it as is. */
5901 if (inswitch
&& !*p
)
5905 /* If substituting a switch, treat all chars like letters.
5906 Otherwise, NL, SPC, TAB and % are special. */
5907 switch (inswitch
? 'a' : c
)
5912 if (argbuf
.length () > 0
5913 && !strcmp (argbuf
.last (), "|"))
5915 /* A `|' before the newline means use a pipe here,
5916 but only if -pipe was specified.
5917 Otherwise, execute now and don't pass the `|' as an arg. */
5920 input_from_pipe
= 1;
5927 set_collect_gcc_options ();
5929 if (argbuf
.length () > 0)
5935 /* Reinitialize for a new command, and for a new argument. */
5938 delete_this_arg
= 0;
5939 this_is_output_file
= 0;
5940 this_is_library_file
= 0;
5941 this_is_linker_script
= 0;
5942 input_from_pipe
= 0;
5949 obstack_1grow (&obstack
, c
);
5957 /* Reinitialize for a new argument. */
5958 delete_this_arg
= 0;
5959 this_is_output_file
= 0;
5960 this_is_library_file
= 0;
5961 this_is_linker_script
= 0;
5968 fatal_error (input_location
, "spec %qs invalid", spec
);
5971 /* Don't use %b in the linker command. */
5972 gcc_assert (suffixed_basename_length
);
5973 if (!this_is_output_file
&& dumpdir_length
)
5974 obstack_grow (&obstack
, dumpdir
, dumpdir_length
);
5975 if (this_is_output_file
|| !outbase_length
)
5976 obstack_grow (&obstack
, input_basename
, basename_length
);
5978 obstack_grow (&obstack
, outbase
, outbase_length
);
5979 if (compare_debug
< 0)
5980 obstack_grow (&obstack
, ".gk", 3);
5985 /* Don't use %B in the linker command. */
5986 gcc_assert (suffixed_basename_length
);
5987 if (!this_is_output_file
&& dumpdir_length
)
5988 obstack_grow (&obstack
, dumpdir
, dumpdir_length
);
5989 if (this_is_output_file
|| !outbase_length
)
5990 obstack_grow (&obstack
, input_basename
, basename_length
);
5992 obstack_grow (&obstack
, outbase
, outbase_length
);
5993 if (compare_debug
< 0)
5994 obstack_grow (&obstack
, ".gk", 3);
5995 obstack_grow (&obstack
, input_basename
+ basename_length
,
5996 suffixed_basename_length
- basename_length
);
6002 delete_this_arg
= 2;
6005 /* Dump out the directories specified with LIBRARY_PATH,
6006 followed by the absolute directories
6007 that we search for startfiles. */
6010 struct spec_path_info info
;
6013 info
.append_len
= 0;
6014 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
6015 /* Used on systems which record the specified -L dirs
6016 and use them to search for dynamic linking.
6017 Relative directories always come from -B,
6018 and it is better not to use them for searching
6019 at run time. In particular, stage1 loses. */
6020 info
.omit_relative
= true;
6022 info
.omit_relative
= false;
6024 info
.separate_options
= false;
6026 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
6031 /* %efoo means report an error with `foo' as error message
6032 and don't execute any more commands for this file. */
6036 while (*p
!= 0 && *p
!= '\n')
6038 buf
= (char *) alloca (p
- q
+ 1);
6039 strncpy (buf
, q
, p
- q
);
6041 error ("%s", _(buf
));
6046 /* %nfoo means report a notice with `foo' on stderr. */
6050 while (*p
!= 0 && *p
!= '\n')
6052 buf
= (char *) alloca (p
- q
+ 1);
6053 strncpy (buf
, q
, p
- q
);
6055 inform (UNKNOWN_LOCATION
, "%s", _(buf
));
6065 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
6066 defined, and it is not a directory, and it is
6067 writable, use it. Otherwise, treat this like any
6068 other temporary file. */
6070 if ((!save_temps_flag
)
6071 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
6072 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
6074 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
6075 strlen (HOST_BIT_BUCKET
));
6076 delete_this_arg
= 0;
6081 goto create_temp_file
;
6085 obstack_1grow (&obstack
, '-');
6086 delete_this_arg
= 0;
6089 /* consume suffix */
6090 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
6092 if (p
[0] == '%' && p
[1] == 'O')
6097 goto create_temp_file
;
6101 /* consume suffix */
6102 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
6104 if (p
[0] == '%' && p
[1] == 'O')
6109 goto create_temp_file
;
6115 struct temp_name
*t
;
6117 const char *suffix
= p
;
6118 char *saved_suffix
= NULL
;
6120 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
6122 suffix_length
= p
- suffix
;
6123 if (p
[0] == '%' && p
[1] == 'O')
6126 /* We don't support extra suffix characters after %O. */
6127 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
6128 fatal_error (input_location
,
6129 "spec %qs has invalid %<%%0%c%>", spec
, *p
);
6130 if (suffix_length
== 0)
6131 suffix
= TARGET_OBJECT_SUFFIX
;
6135 = XNEWVEC (char, suffix_length
6136 + strlen (TARGET_OBJECT_SUFFIX
) + 1);
6137 strncpy (saved_suffix
, suffix
, suffix_length
);
6138 strcpy (saved_suffix
+ suffix_length
,
6139 TARGET_OBJECT_SUFFIX
);
6141 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
6144 if (compare_debug
< 0)
6146 suffix
= concat (".gk", suffix
, NULL
);
6150 /* If -save-temps was specified, use that for the
6152 if (save_temps_flag
)
6155 bool adjusted_suffix
= false;
6157 && !outbase_length
&& !basename_length
6158 && !dumpdir_trailing_dash_added
)
6160 adjusted_suffix
= true;
6164 temp_filename_length
6165 = dumpdir_length
+ suffix_length
+ 1;
6167 temp_filename_length
+= outbase_length
;
6169 temp_filename_length
+= basename_length
;
6170 tmp
= (char *) alloca (temp_filename_length
);
6172 memcpy (tmp
, dumpdir
, dumpdir_length
);
6174 memcpy (tmp
+ dumpdir_length
, outbase
,
6176 else if (basename_length
)
6177 memcpy (tmp
+ dumpdir_length
, input_basename
,
6179 memcpy (tmp
+ temp_filename_length
- suffix_length
- 1,
6180 suffix
, suffix_length
);
6181 if (adjusted_suffix
)
6183 adjusted_suffix
= false;
6187 tmp
[temp_filename_length
- 1] = '\0';
6188 temp_filename
= tmp
;
6190 if (filename_cmp (temp_filename
, gcc_input_filename
) != 0)
6192 #ifndef HOST_LACKS_INODE_NUMBERS
6193 struct stat st_temp
;
6195 /* Note, set_input() resets input_stat_set to 0. */
6196 if (input_stat_set
== 0)
6198 input_stat_set
= stat (gcc_input_filename
,
6200 if (input_stat_set
>= 0)
6204 /* If we have the stat for the gcc_input_filename
6205 and we can do the stat for the temp_filename
6206 then the they could still refer to the same
6207 file if st_dev/st_ino's are the same. */
6208 if (input_stat_set
!= 1
6209 || stat (temp_filename
, &st_temp
) < 0
6210 || input_stat
.st_dev
!= st_temp
.st_dev
6211 || input_stat
.st_ino
!= st_temp
.st_ino
)
6213 /* Just compare canonical pathnames. */
6214 char* input_realname
= lrealpath (gcc_input_filename
);
6215 char* temp_realname
= lrealpath (temp_filename
);
6216 bool files_differ
= filename_cmp (input_realname
, temp_realname
);
6217 free (input_realname
);
6218 free (temp_realname
);
6223 = save_string (temp_filename
,
6224 temp_filename_length
- 1);
6225 obstack_grow (&obstack
, temp_filename
,
6226 temp_filename_length
);
6228 delete_this_arg
= 0;
6234 /* See if we already have an association of %g/%u/%U and
6236 for (t
= temp_names
; t
; t
= t
->next
)
6237 if (t
->length
== suffix_length
6238 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
6239 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
6242 /* Make a new association if needed. %u and %j
6244 if (t
== 0 || c
== 'u' || c
== 'j')
6248 t
= XNEW (struct temp_name
);
6249 t
->next
= temp_names
;
6252 t
->length
= suffix_length
;
6255 t
->suffix
= saved_suffix
;
6256 saved_suffix
= NULL
;
6259 t
->suffix
= save_string (suffix
, suffix_length
);
6260 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
6261 temp_filename
= make_temp_file (t
->suffix
);
6262 temp_filename_length
= strlen (temp_filename
);
6263 t
->filename
= temp_filename
;
6264 t
->filename_length
= temp_filename_length
;
6267 free (saved_suffix
);
6269 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
6270 delete_this_arg
= 1;
6278 /* We are going to expand `%i' into `@FILE', where FILE
6279 is a newly-created temporary filename. The filenames
6280 that would usually be expanded in place of %o will be
6281 written to the temporary file. */
6282 if (at_file_supplied
)
6285 for (i
= 0; (int) i
< n_infiles
; i
++)
6286 if (compile_input_file_p (&infiles
[i
]))
6288 store_arg (infiles
[i
].name
, 0, 0);
6289 infiles
[i
].compiled
= true;
6292 if (at_file_supplied
)
6297 obstack_grow (&obstack
, gcc_input_filename
,
6298 input_filename_length
);
6305 struct spec_path_info info
;
6309 do_spec_1 ("-imultilib", 1, NULL
);
6310 /* Make this a separate argument. */
6311 do_spec_1 (" ", 0, NULL
);
6312 do_spec_1 (multilib_dir
, 1, NULL
);
6313 do_spec_1 (" ", 0, NULL
);
6318 do_spec_1 ("-imultiarch", 1, NULL
);
6319 /* Make this a separate argument. */
6320 do_spec_1 (" ", 0, NULL
);
6321 do_spec_1 (multiarch_dir
, 1, NULL
);
6322 do_spec_1 (" ", 0, NULL
);
6325 if (gcc_exec_prefix
)
6327 do_spec_1 ("-iprefix", 1, NULL
);
6328 /* Make this a separate argument. */
6329 do_spec_1 (" ", 0, NULL
);
6330 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
6331 do_spec_1 (" ", 0, NULL
);
6334 if (target_system_root_changed
||
6335 (target_system_root
&& target_sysroot_hdrs_suffix
))
6337 do_spec_1 ("-isysroot", 1, NULL
);
6338 /* Make this a separate argument. */
6339 do_spec_1 (" ", 0, NULL
);
6340 do_spec_1 (target_system_root
, 1, NULL
);
6341 if (target_sysroot_hdrs_suffix
)
6342 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
6343 do_spec_1 (" ", 0, NULL
);
6346 info
.option
= "-isystem";
6347 info
.append
= "include";
6348 info
.append_len
= strlen (info
.append
);
6349 info
.omit_relative
= false;
6350 info
.separate_options
= true;
6352 for_each_path (&include_prefixes
, false, info
.append_len
,
6355 info
.append
= "include-fixed";
6356 if (*sysroot_hdrs_suffix_spec
)
6357 info
.append
= concat (info
.append
, dir_separator_str
,
6358 multilib_dir
, NULL
);
6359 info
.append_len
= strlen (info
.append
);
6360 for_each_path (&include_prefixes
, false, info
.append_len
,
6366 /* We are going to expand `%o' into `@FILE', where FILE
6367 is a newly-created temporary filename. The filenames
6368 that would usually be expanded in place of %o will be
6369 written to the temporary file. */
6370 if (at_file_supplied
)
6373 for (i
= 0; i
< n_infiles
+ lang_specific_extra_outfiles
; i
++)
6375 store_arg (outfiles
[i
], 0, 0);
6377 if (at_file_supplied
)
6382 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
6387 this_is_library_file
= 1;
6391 this_is_linker_script
= 1;
6395 outfiles
[input_file_number
] = NULL
;
6399 this_is_output_file
= 1;
6404 unsigned int cur_index
= argbuf
.length ();
6405 /* Handle the {...} following the %W. */
6407 fatal_error (input_location
,
6408 "spec %qs has invalid %<%%W%c%>", spec
, *p
);
6409 p
= handle_braces (p
+ 1);
6413 /* If any args were output, mark the last one for deletion
6415 if (argbuf
.length () != cur_index
)
6416 record_temp_file (argbuf
.last (), 0, 1);
6421 /* Handle the {...} following the %@. */
6423 fatal_error (input_location
,
6424 "spec %qs has invalid %<%%@%c%>", spec
, *p
);
6425 if (at_file_supplied
)
6427 p
= handle_braces (p
+ 1);
6428 if (at_file_supplied
)
6434 /* %x{OPTION} records OPTION for %X to output. */
6442 /* Skip past the option value and make a copy. */
6444 fatal_error (input_location
,
6445 "spec %qs has invalid %<%%x%c%>", spec
, *p
);
6448 string
= save_string (p1
+ 1, p
- p1
- 2);
6450 /* See if we already recorded this option. */
6451 FOR_EACH_VEC_ELT (linker_options
, ix
, opt
)
6452 if (! strcmp (string
, opt
))
6458 /* This option is new; add it. */
6459 add_linker_option (string
, strlen (string
));
6464 /* Dump out the options accumulated previously using %x. */
6466 do_specs_vec (linker_options
);
6469 /* Dump out the options accumulated previously using -Wa,. */
6471 do_specs_vec (assembler_options
);
6474 /* Dump out the options accumulated previously using -Wp,. */
6476 do_specs_vec (preprocessor_options
);
6479 /* Here are digits and numbers that just process
6480 a certain constant string as a spec. */
6483 value
= do_spec_1 (cc1_spec
, 0, NULL
);
6489 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
6495 value
= do_spec_1 (asm_spec
, 0, NULL
);
6501 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
6508 const char *const spec
6509 = (input_file_compiler
->cpp_spec
6510 ? input_file_compiler
->cpp_spec
6512 value
= do_spec_1 (spec
, 0, NULL
);
6519 value
= do_spec_1 (endfile_spec
, 0, NULL
);
6525 value
= do_spec_1 (link_spec
, 0, NULL
);
6531 value
= do_spec_1 (lib_spec
, 0, NULL
);
6537 if (multilib_os_dir
== NULL
)
6538 obstack_1grow (&obstack
, '.');
6540 obstack_grow (&obstack
, multilib_os_dir
,
6541 strlen (multilib_os_dir
));
6545 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
6551 /* We assume there is a directory
6552 separator at the end of this string. */
6553 if (target_system_root
)
6555 obstack_grow (&obstack
, target_system_root
,
6556 strlen (target_system_root
));
6557 if (target_sysroot_suffix
)
6558 obstack_grow (&obstack
, target_sysroot_suffix
,
6559 strlen (target_sysroot_suffix
));
6564 value
= do_spec_1 (startfile_spec
, 0, NULL
);
6569 /* Here we define characters other than letters and digits. */
6572 p
= handle_braces (p
);
6578 p
= handle_spec_function (p
, NULL
, soft_matched_part
);
6584 obstack_1grow (&obstack
, '%');
6591 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
6593 suffix_subst
= save_string (p
- 1, len
+ 1);
6598 /* Henceforth ignore the option(s) matching the pattern
6604 int have_wildcard
= 0;
6609 switch_option
= SWITCH_IGNORE
| SWITCH_KEEP_FOR_GCC
;
6611 switch_option
= SWITCH_IGNORE
;
6613 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
6616 if (p
[len
-1] == '*')
6619 for (i
= 0; i
< n_switches
; i
++)
6620 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
6621 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
6623 switches
[i
].live_cond
|= switch_option
;
6624 /* User switch be validated from validate_all_switches.
6625 when the definition is seen from the spec file.
6626 If not defined anywhere, will be rejected. */
6627 if (switches
[i
].known
)
6628 switches
[i
].validated
= true;
6636 if (soft_matched_part
)
6638 if (soft_matched_part
[0])
6639 do_spec_1 (soft_matched_part
, 1, NULL
);
6640 /* Only insert a space after the substitution if it is at the
6641 end of the current sequence. So if:
6643 "%{foo=*:bar%*}%{foo=*:one%*two}"
6645 matches -foo=hello then it will produce:
6647 barhello onehellotwo
6649 if (*p
== 0 || *p
== '}')
6650 do_spec_1 (" ", 0, NULL
);
6653 /* Catch the case where a spec string contains something like
6654 '%{foo:%*}'. i.e. there is no * in the pattern on the left
6655 hand side of the :. */
6656 error ("spec failure: %<%%*%> has not been initialized by pattern match");
6659 /* Process a string found as the value of a spec given by name.
6660 This feature allows individual machine descriptions
6661 to add and use their own specs. */
6664 const char *name
= p
;
6665 struct spec_list
*sl
;
6668 /* The string after the S/P is the name of a spec that is to be
6670 while (*p
&& *p
!= ')')
6673 /* See if it's in the list. */
6674 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
6675 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
6677 name
= *(sl
->ptr_spec
);
6679 fnotice (stderr
, "Processing spec (%s), which is '%s'\n",
6687 value
= do_spec_1 (name
, 0, NULL
);
6692 /* Discard the closing paren. */
6699 /* End a previous argument, if there is one, then issue an
6707 error ("spec failure: unrecognized spec option %qc", c
);
6713 /* Backslash: treat next character as ordinary. */
6716 /* When adding more cases that previously matched default, make
6717 sure to adjust quote_spec_char_p as well. */
6721 /* Ordinary character: put it into the current argument. */
6722 obstack_1grow (&obstack
, c
);
6726 /* End of string. If we are processing a spec function, we need to
6727 end any pending argument. */
6728 if (processing_spec_function
)
6734 /* Look up a spec function. */
6736 static const struct spec_function
*
6737 lookup_spec_function (const char *name
)
6739 const struct spec_function
*sf
;
6741 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
6742 if (strcmp (sf
->name
, name
) == 0)
6748 /* Evaluate a spec function. */
6751 eval_spec_function (const char *func
, const char *args
,
6752 const char *soft_matched_part
)
6754 const struct spec_function
*sf
;
6755 const char *funcval
;
6757 /* Saved spec processing context. */
6758 vec
<const_char_p
> save_argbuf
;
6761 int save_delete_this_arg
;
6762 int save_this_is_output_file
;
6763 int save_this_is_library_file
;
6764 int save_input_from_pipe
;
6765 int save_this_is_linker_script
;
6766 const char *save_suffix_subst
;
6768 int save_growing_size
;
6769 void *save_growing_value
= NULL
;
6771 sf
= lookup_spec_function (func
);
6773 fatal_error (input_location
, "unknown spec function %qs", func
);
6775 /* Push the spec processing context. */
6776 save_argbuf
= argbuf
;
6778 save_arg_going
= arg_going
;
6779 save_delete_this_arg
= delete_this_arg
;
6780 save_this_is_output_file
= this_is_output_file
;
6781 save_this_is_library_file
= this_is_library_file
;
6782 save_this_is_linker_script
= this_is_linker_script
;
6783 save_input_from_pipe
= input_from_pipe
;
6784 save_suffix_subst
= suffix_subst
;
6786 /* If we have some object growing now, finalize it so the args and function
6787 eval proceed from a cleared context. This is needed to prevent the first
6788 constructed arg from mistakenly including the growing value. We'll push
6789 this value back on the obstack once the function evaluation is done, to
6790 restore a consistent processing context for our caller. This is fine as
6791 the address of growing objects isn't guaranteed to remain stable until
6792 they are finalized, and we expect this situation to be rare enough for
6793 the extra copy not to be an issue. */
6794 save_growing_size
= obstack_object_size (&obstack
);
6795 if (save_growing_size
> 0)
6796 save_growing_value
= obstack_finish (&obstack
);
6798 /* Create a new spec processing context, and build the function
6802 if (do_spec_2 (args
, soft_matched_part
) < 0)
6803 fatal_error (input_location
, "error in arguments to spec function %qs",
6806 /* argbuf_index is an index for the next argument to be inserted, and
6807 so contains the count of the args already inserted. */
6809 funcval
= (*sf
->func
) (argbuf
.length (),
6812 /* Pop the spec processing context. */
6814 argbuf
= save_argbuf
;
6816 arg_going
= save_arg_going
;
6817 delete_this_arg
= save_delete_this_arg
;
6818 this_is_output_file
= save_this_is_output_file
;
6819 this_is_library_file
= save_this_is_library_file
;
6820 this_is_linker_script
= save_this_is_linker_script
;
6821 input_from_pipe
= save_input_from_pipe
;
6822 suffix_subst
= save_suffix_subst
;
6824 if (save_growing_size
> 0)
6825 obstack_grow (&obstack
, save_growing_value
, save_growing_size
);
6830 /* Handle a spec function call of the form:
6834 ARGS is processed as a spec in a separate context and split into an
6835 argument vector in the normal fashion. The function returns a string
6836 containing a spec which we then process in the caller's context, or
6837 NULL if no processing is required.
6839 If RETVAL_NONNULL is not NULL, then store a bool whether function
6842 SOFT_MATCHED_PART holds the current value of a matched * pattern, which
6843 may be re-expanded with a %* as part of the function arguments. */
6846 handle_spec_function (const char *p
, bool *retval_nonnull
,
6847 const char *soft_matched_part
)
6850 const char *endp
, *funcval
;
6853 processing_spec_function
++;
6855 /* Get the function name. */
6856 for (endp
= p
; *endp
!= '\0'; endp
++)
6858 if (*endp
== '(') /* ) */
6860 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6861 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6862 fatal_error (input_location
, "malformed spec function name");
6864 if (*endp
!= '(') /* ) */
6865 fatal_error (input_location
, "no arguments for spec function");
6866 func
= save_string (p
, endp
- p
);
6869 /* Get the arguments. */
6870 for (count
= 0; *endp
!= '\0'; endp
++)
6879 else if (*endp
== '(') /* ) */
6884 fatal_error (input_location
, "malformed spec function arguments");
6885 args
= save_string (p
, endp
- p
);
6888 /* p now points to just past the end of the spec function expression. */
6890 funcval
= eval_spec_function (func
, args
, soft_matched_part
);
6891 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6894 *retval_nonnull
= funcval
!= NULL
;
6899 processing_spec_function
--;
6904 /* Inline subroutine of handle_braces. Returns true if the current
6905 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6907 input_suffix_matches (const char *atom
, const char *end_atom
)
6909 return (input_suffix
6910 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6911 && input_suffix
[end_atom
- atom
] == '\0');
6914 /* Subroutine of handle_braces. Returns true if the current
6915 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6917 input_spec_matches (const char *atom
, const char *end_atom
)
6919 return (input_file_compiler
6920 && input_file_compiler
->suffix
6921 && input_file_compiler
->suffix
[0] != '\0'
6922 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6924 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6927 /* Subroutine of handle_braces. Returns true if a switch
6928 matching the atom bracketed by ATOM and END_ATOM appeared on the
6931 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6934 int len
= end_atom
- atom
;
6935 int plen
= starred
? len
: -1;
6937 for (i
= 0; i
< n_switches
; i
++)
6938 if (!strncmp (switches
[i
].part1
, atom
, len
)
6939 && (starred
|| switches
[i
].part1
[len
] == '\0')
6940 && check_live_switch (i
, plen
))
6943 /* Check if a switch with separated form matching the atom.
6944 We check -D and -U switches. */
6945 else if (switches
[i
].args
!= 0)
6947 if ((*switches
[i
].part1
== 'D' || *switches
[i
].part1
== 'U')
6948 && *switches
[i
].part1
== atom
[0])
6950 if (!strncmp (switches
[i
].args
[0], &atom
[1], len
- 1)
6951 && (starred
|| (switches
[i
].part1
[1] == '\0'
6952 && switches
[i
].args
[0][len
- 1] == '\0'))
6953 && check_live_switch (i
, (starred
? 1 : -1)))
6961 /* Inline subroutine of handle_braces. Mark all of the switches which
6962 match ATOM (extends to END_ATOM; STARRED indicates whether there
6963 was a star after the atom) for later processing. */
6965 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6968 int len
= end_atom
- atom
;
6969 int plen
= starred
? len
: -1;
6971 for (i
= 0; i
< n_switches
; i
++)
6972 if (!strncmp (switches
[i
].part1
, atom
, len
)
6973 && (starred
|| switches
[i
].part1
[len
] == '\0')
6974 && check_live_switch (i
, plen
))
6975 switches
[i
].ordering
= 1;
6978 /* Inline subroutine of handle_braces. Process all the currently
6979 marked switches through give_switch, and clear the marks. */
6981 process_marked_switches (void)
6985 for (i
= 0; i
< n_switches
; i
++)
6986 if (switches
[i
].ordering
== 1)
6988 switches
[i
].ordering
= 0;
6993 /* Handle a %{ ... } construct. P points just inside the leading {.
6994 Returns a pointer one past the end of the brace block, or 0
6995 if we call do_spec_1 and that returns -1. */
6998 handle_braces (const char *p
)
7000 const char *atom
, *end_atom
;
7001 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
7002 char *esc_buf
= NULL
, *d_esc_buf
= NULL
;
7004 const char *orig
= p
;
7012 bool a_must_be_last
= false;
7013 bool ordered_set
= false;
7014 bool disjunct_set
= false;
7015 bool disj_matched
= false;
7016 bool disj_starred
= true;
7017 bool n_way_choice
= false;
7018 bool n_way_matched
= false;
7020 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7027 /* Scan one "atom" (S in the description above of %{}, possibly
7028 with '!', '.', '@', ',', or '*' modifiers). */
7030 a_is_suffix
= false;
7031 a_is_starred
= false;
7032 a_is_negated
= false;
7033 a_is_spectype
= false;
7037 p
++, a_is_negated
= true;
7040 if (*p
== '%' && p
[1] == ':')
7044 p
= handle_spec_function (p
+ 2, &a_matched
, NULL
);
7049 p
++, a_is_suffix
= true;
7051 p
++, a_is_spectype
= true;
7055 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7056 || *p
== ',' || *p
== '.' || *p
== '@' || *p
== '\\')
7062 fatal_error (input_location
,
7063 "braced spec %qs ends in escape", orig
);
7075 if (esc_buf
&& esc_buf
!= d_esc_buf
)
7078 ep
= esc_buf
= (char *) xmalloc (end_atom
- atom
- esc
+ 1);
7079 for (ap
= atom
; ap
!= end_atom
; ap
++, ep
++)
7091 p
++, a_is_starred
= 1;
7098 /* Substitute the switch(es) indicated by the current atom. */
7100 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
7101 || a_is_spectype
|| atom
== end_atom
)
7104 mark_matching_switches (atom
, end_atom
, a_is_starred
);
7107 process_marked_switches ();
7111 /* Substitute some text if the current atom appears as a switch
7113 disjunct_set
= true;
7117 if (atom
&& atom
== end_atom
)
7119 if (!n_way_choice
|| disj_matched
|| *p
== '|'
7120 || a_is_negated
|| a_is_suffix
|| a_is_spectype
7124 /* An empty term may appear as the last choice of an
7125 N-way choice set; it means "otherwise". */
7126 a_must_be_last
= true;
7127 disj_matched
= !n_way_matched
;
7128 disj_starred
= false;
7132 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
7136 disj_starred
= false;
7138 /* Don't bother testing this atom if we already have a
7140 if (!disj_matched
&& !n_way_matched
)
7143 /* a_matched is already set by handle_spec_function. */;
7144 else if (a_is_suffix
)
7145 a_matched
= input_suffix_matches (atom
, end_atom
);
7146 else if (a_is_spectype
)
7147 a_matched
= input_spec_matches (atom
, end_atom
);
7149 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
7151 if (a_matched
!= a_is_negated
)
7153 disj_matched
= true;
7155 d_end_atom
= end_atom
;
7156 d_esc_buf
= esc_buf
;
7163 /* Found the body, that is, the text to substitute if the
7164 current disjunction matches. */
7165 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
7166 disj_matched
&& !n_way_matched
);
7170 /* If we have an N-way choice, reset state for the next
7174 n_way_choice
= true;
7175 n_way_matched
|= disj_matched
;
7176 disj_matched
= false;
7177 disj_starred
= true;
7178 d_atom
= d_end_atom
= NULL
;
7187 while (*p
++ != '}');
7190 if (d_esc_buf
&& d_esc_buf
!= esc_buf
)
7198 fatal_error (input_location
, "braced spec %qs is invalid at %qc", orig
, *p
);
7203 /* Subroutine of handle_braces. Scan and process a brace substitution body
7204 (X in the description of %{} syntax). P points one past the colon;
7205 ATOM and END_ATOM bracket the first atom which was found to be true
7206 (present) in the current disjunction; STARRED indicates whether all
7207 the atoms in the current disjunction were starred (for syntax validation);
7208 MATCHED indicates whether the disjunction matched or not, and therefore
7209 whether or not the body is to be processed through do_spec_1 or just
7210 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
7214 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
7215 int starred
, int matched
)
7217 const char *body
, *end_body
;
7218 unsigned int nesting_level
;
7219 bool have_subst
= false;
7221 /* Locate the closing } or ;, honoring nested braces.
7222 Trim trailing whitespace. */
7231 if (!--nesting_level
)
7234 else if (*p
== ';' && nesting_level
== 1)
7236 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
7238 else if (*p
== '\0')
7244 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
7247 if (have_subst
&& !starred
)
7252 /* Copy the substitution body to permanent storage and execute it.
7253 If have_subst is false, this is a simple matter of running the
7254 body through do_spec_1... */
7255 char *string
= save_string (body
, end_body
- body
);
7258 if (do_spec_1 (string
, 0, NULL
) < 0)
7266 /* ... but if have_subst is true, we have to process the
7267 body once for each matching switch, with %* set to the
7268 variant part of the switch. */
7269 unsigned int hard_match_len
= end_atom
- atom
;
7272 for (i
= 0; i
< n_switches
; i
++)
7273 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
7274 && check_live_switch (i
, hard_match_len
))
7276 if (do_spec_1 (string
, 0,
7277 &switches
[i
].part1
[hard_match_len
]) < 0)
7282 /* Pass any arguments this switch has. */
7284 suffix_subst
= NULL
;
7293 fatal_error (input_location
, "braced spec body %qs is invalid", body
);
7296 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
7297 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
7298 spec, or -1 if either exact match or %* is used.
7300 A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
7301 whose value does not begin with "no-" is obsoleted by the same value
7302 with the "no-", similarly for a switch with the "no-" prefix. */
7305 check_live_switch (int switchnum
, int prefix_length
)
7307 const char *name
= switches
[switchnum
].part1
;
7310 /* If we already processed this switch and determined if it was
7311 live or not, return our past determination. */
7312 if (switches
[switchnum
].live_cond
!= 0)
7313 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
7314 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
7315 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
7318 /* In the common case of {<at-most-one-letter>*}, a negating
7319 switch would always match, so ignore that case. We will just
7320 send the conflicting switches to the compiler phase. */
7321 if (prefix_length
>= 0 && prefix_length
<= 1)
7324 /* Now search for duplicate in a manner that depends on the name. */
7328 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
7329 if (switches
[i
].part1
[0] == 'O')
7331 switches
[switchnum
].validated
= true;
7332 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
7337 case 'W': case 'f': case 'm': case 'g':
7338 if (! strncmp (name
+ 1, "no-", 3))
7340 /* We have Xno-YYY, search for XYYY. */
7341 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
7342 if (switches
[i
].part1
[0] == name
[0]
7343 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
7345 /* --specs are validated with the validate_switches mechanism. */
7346 if (switches
[switchnum
].known
)
7347 switches
[switchnum
].validated
= true;
7348 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
7354 /* We have XYYY, search for Xno-YYY. */
7355 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
7356 if (switches
[i
].part1
[0] == name
[0]
7357 && switches
[i
].part1
[1] == 'n'
7358 && switches
[i
].part1
[2] == 'o'
7359 && switches
[i
].part1
[3] == '-'
7360 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
7362 /* --specs are validated with the validate_switches mechanism. */
7363 if (switches
[switchnum
].known
)
7364 switches
[switchnum
].validated
= true;
7365 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
7372 /* Otherwise the switch is live. */
7373 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
7377 /* Pass a switch to the current accumulating command
7378 in the same form that we received it.
7379 SWITCHNUM identifies the switch; it is an index into
7380 the vector of switches gcc received, which is `switches'.
7381 This cannot fail since it never finishes a command line.
7383 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
7386 give_switch (int switchnum
, int omit_first_word
)
7388 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
7391 if (!omit_first_word
)
7393 do_spec_1 ("-", 0, NULL
);
7394 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
7397 if (switches
[switchnum
].args
!= 0)
7400 for (p
= switches
[switchnum
].args
; *p
; p
++)
7402 const char *arg
= *p
;
7404 do_spec_1 (" ", 0, NULL
);
7407 unsigned length
= strlen (arg
);
7410 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
7411 if (arg
[length
] == '.')
7413 (CONST_CAST (char *, arg
))[length
] = 0;
7417 do_spec_1 (arg
, 1, NULL
);
7419 (CONST_CAST (char *, arg
))[length
] = '.';
7420 do_spec_1 (suffix_subst
, 1, NULL
);
7423 do_spec_1 (arg
, 1, NULL
);
7427 do_spec_1 (" ", 0, NULL
);
7428 switches
[switchnum
].validated
= true;
7431 /* Print GCC configuration (e.g. version, thread model, target,
7432 configuration_arguments) to a given FILE. */
7435 print_configuration (FILE *file
)
7440 fnotice (file
, "Target: %s\n", spec_machine
);
7441 fnotice (file
, "Configured with: %s\n", configuration_arguments
);
7443 #ifdef THREAD_MODEL_SPEC
7444 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7445 but there's no point in doing all this processing just to get
7446 thread_model back. */
7447 obstack_init (&obstack
);
7448 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
7449 obstack_1grow (&obstack
, '\0');
7450 thrmod
= XOBFINISH (&obstack
, const char *);
7452 thrmod
= thread_model
;
7455 fnotice (file
, "Thread model: %s\n", thrmod
);
7456 fnotice (file
, "Supported LTO compression algorithms: zlib");
7458 fnotice (file
, " zstd");
7460 fnotice (file
, "\n");
7462 /* compiler_version is truncated at the first space when initialized
7463 from version string, so truncate version_string at the first space
7464 before comparing. */
7465 for (n
= 0; version_string
[n
]; n
++)
7466 if (version_string
[n
] == ' ')
7469 if (! strncmp (version_string
, compiler_version
, n
)
7470 && compiler_version
[n
] == 0)
7471 fnotice (file
, "gcc version %s %s\n", version_string
,
7474 fnotice (file
, "gcc driver version %s %sexecuting gcc version %s\n",
7475 version_string
, pkgversion_string
, compiler_version
);
7479 #define RETRY_ICE_ATTEMPTS 3
7481 /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise. */
7484 files_equal_p (char *file1
, char *file2
)
7486 struct stat st1
, st2
;
7489 const int bufsize
= 8192;
7490 char *buf
= XNEWVEC (char, bufsize
);
7492 fd1
= open (file1
, O_RDONLY
);
7493 fd2
= open (file2
, O_RDONLY
);
7495 if (fd1
< 0 || fd2
< 0)
7498 if (fstat (fd1
, &st1
) < 0 || fstat (fd2
, &st2
) < 0)
7501 if (st1
.st_size
!= st2
.st_size
)
7504 for (n
= st1
.st_size
; n
; n
-= len
)
7507 if ((int) len
> bufsize
/ 2)
7510 if (read (fd1
, buf
, len
) != (int) len
7511 || read (fd2
, buf
+ bufsize
/ 2, len
) != (int) len
)
7516 if (memcmp (buf
, buf
+ bufsize
/ 2, len
) != 0)
7533 /* Check that compiler's output doesn't differ across runs.
7534 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
7535 stdout and stderr for each compiler run. Return true if all of
7536 TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
7539 check_repro (char **temp_stdout_files
, char **temp_stderr_files
)
7542 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
- 2; ++i
)
7544 if (!files_equal_p (temp_stdout_files
[i
], temp_stdout_files
[i
+ 1])
7545 || !files_equal_p (temp_stderr_files
[i
], temp_stderr_files
[i
+ 1]))
7547 fnotice (stderr
, "The bug is not reproducible, so it is"
7548 " likely a hardware or OS problem.\n");
7552 return i
== RETRY_ICE_ATTEMPTS
- 2;
7555 enum attempt_status
{
7556 ATTEMPT_STATUS_FAIL_TO_RUN
,
7557 ATTEMPT_STATUS_SUCCESS
,
7562 /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
7563 to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
7564 and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
7565 GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
7566 compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
7567 ATTEMPT_STATUS_SUCCESS otherwise. */
7569 static enum attempt_status
7570 run_attempt (const char **new_argv
, const char *out_temp
,
7571 const char *err_temp
, int emit_system_info
, int append
)
7574 if (emit_system_info
)
7576 FILE *file_out
= fopen (err_temp
, "a");
7577 print_configuration (file_out
);
7578 fputs ("\n", file_out
);
7584 struct pex_obj
*pex
;
7586 int pex_flags
= PEX_USE_PIPES
| PEX_LAST
;
7587 enum attempt_status status
= ATTEMPT_STATUS_FAIL_TO_RUN
;
7590 pex_flags
|= PEX_STDOUT_APPEND
| PEX_STDERR_APPEND
;
7592 pex
= pex_init (PEX_USE_PIPES
, new_argv
[0], NULL
);
7594 fatal_error (input_location
, "%<pex_init%> failed: %m");
7596 errmsg
= pex_run (pex
, pex_flags
, new_argv
[0],
7597 CONST_CAST2 (char *const *, const char **, &new_argv
[1]),
7598 out_temp
, err_temp
, &err
);
7602 fatal_error (input_location
,
7603 err
? G_ ("cannot execute %qs: %s: %m")
7604 : G_ ("cannot execute %qs: %s"),
7605 new_argv
[0], errmsg
);
7608 if (!pex_get_status (pex
, 1, &exit_status
))
7611 switch (WEXITSTATUS (exit_status
))
7614 status
= ATTEMPT_STATUS_ICE
;
7617 case SUCCESS_EXIT_CODE
:
7618 status
= ATTEMPT_STATUS_SUCCESS
;
7630 /* This routine reads lines from IN file, adds C++ style comments
7631 at the begining of each line and writes result into OUT. */
7634 insert_comments (const char *file_in
, const char *file_out
)
7636 FILE *in
= fopen (file_in
, "rb");
7637 FILE *out
= fopen (file_out
, "wb");
7640 bool add_comment
= true;
7641 while (fgets (line
, sizeof (line
), in
))
7646 add_comment
= strchr (line
, '\n') != NULL
;
7653 /* This routine adds preprocessed source code into the given ERR_FILE.
7654 To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
7655 add information in report file. RUN_ATTEMPT should return
7656 ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
7659 do_report_bug (const char **new_argv
, const int nargs
,
7660 char **out_file
, char **err_file
)
7663 int fd
= open (*out_file
, O_RDWR
| O_APPEND
);
7666 write (fd
, "\n//", 3);
7667 for (i
= 0; i
< nargs
; i
++)
7670 write (fd
, new_argv
[i
], strlen (new_argv
[i
]));
7672 write (fd
, "\n\n", 2);
7674 new_argv
[nargs
] = "-E";
7675 new_argv
[nargs
+ 1] = NULL
;
7677 status
= run_attempt (new_argv
, *out_file
, *err_file
, 0, 1);
7679 if (status
== ATTEMPT_STATUS_SUCCESS
)
7681 fnotice (stderr
, "Preprocessed source stored into %s file,"
7682 " please attach this to your bugreport.\n", *out_file
);
7683 /* Make sure it is not deleted. */
7689 /* Try to reproduce ICE. If bug is reproducible, generate report .err file
7690 containing GCC configuration, backtrace, compiler's command line options
7691 and preprocessed source code. */
7694 try_generate_repro (const char **argv
)
7696 int i
, nargs
, out_arg
= -1, quiet
= 0, attempt
;
7697 const char **new_argv
;
7698 char *temp_files
[RETRY_ICE_ATTEMPTS
* 2];
7699 char **temp_stdout_files
= &temp_files
[0];
7700 char **temp_stderr_files
= &temp_files
[RETRY_ICE_ATTEMPTS
];
7702 if (gcc_input_filename
== NULL
|| ! strcmp (gcc_input_filename
, "-"))
7705 for (nargs
= 0; argv
[nargs
] != NULL
; ++nargs
)
7706 /* Only retry compiler ICEs, not preprocessor ones. */
7707 if (! strcmp (argv
[nargs
], "-E"))
7709 else if (argv
[nargs
][0] == '-' && argv
[nargs
][1] == 'o')
7716 /* If the compiler is going to output any time information,
7717 it might varry between invocations. */
7718 else if (! strcmp (argv
[nargs
], "-quiet"))
7720 else if (! strcmp (argv
[nargs
], "-ftime-report"))
7723 if (out_arg
== -1 || !quiet
)
7726 memset (temp_files
, '\0', sizeof (temp_files
));
7727 new_argv
= XALLOCAVEC (const char *, nargs
+ 4);
7728 memcpy (new_argv
, argv
, (nargs
+ 1) * sizeof (const char *));
7729 new_argv
[nargs
++] = "-frandom-seed=0";
7730 new_argv
[nargs
++] = "-fdump-noaddr";
7731 new_argv
[nargs
] = NULL
;
7732 if (new_argv
[out_arg
][2] == '\0')
7733 new_argv
[out_arg
+ 1] = "-";
7735 new_argv
[out_arg
] = "-o-";
7738 for (attempt
= 0; attempt
< RETRY_ICE_ATTEMPTS
; ++attempt
)
7740 int emit_system_info
= 0;
7742 temp_stdout_files
[attempt
] = make_temp_file (".out");
7743 temp_stderr_files
[attempt
] = make_temp_file (".err");
7745 if (attempt
== RETRY_ICE_ATTEMPTS
- 1)
7748 emit_system_info
= 1;
7751 status
= run_attempt (new_argv
, temp_stdout_files
[attempt
],
7752 temp_stderr_files
[attempt
], emit_system_info
,
7755 if (status
!= ATTEMPT_STATUS_ICE
)
7757 fnotice (stderr
, "The bug is not reproducible, so it is"
7758 " likely a hardware or OS problem.\n");
7763 if (!check_repro (temp_stdout_files
, temp_stderr_files
))
7767 /* Insert commented out backtrace into report file. */
7768 char **stderr_commented
= &temp_stdout_files
[RETRY_ICE_ATTEMPTS
- 1];
7769 insert_comments (temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1],
7772 /* In final attempt we append compiler options and preprocesssed code to last
7773 generated .out file with configuration and backtrace. */
7774 char **err
= &temp_stderr_files
[RETRY_ICE_ATTEMPTS
- 1];
7775 do_report_bug (new_argv
, nargs
, stderr_commented
, err
);
7779 for (i
= 0; i
< RETRY_ICE_ATTEMPTS
* 2; i
++)
7782 unlink (temp_stdout_files
[i
]);
7783 free (temp_stdout_files
[i
]);
7787 /* Search for a file named NAME trying various prefixes including the
7788 user's -B prefix and some standard ones.
7789 Return the absolute file name found. If nothing is found, return NAME. */
7792 find_file (const char *name
)
7794 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
7795 return newname
? newname
: name
;
7798 /* Determine whether a directory exists. If LINKER, return 0 for
7799 certain fixed names not needed by the linker. */
7802 is_directory (const char *path1
, bool linker
)
7809 /* Ensure the string ends with "/.". The resulting path will be a
7810 directory even if the given path is a symbolic link. */
7811 len1
= strlen (path1
);
7812 path
= (char *) alloca (3 + len1
);
7813 memcpy (path
, path1
, len1
);
7815 if (!IS_DIR_SEPARATOR (cp
[-1]))
7816 *cp
++ = DIR_SEPARATOR
;
7820 /* Exclude directories that the linker is known to search. */
7822 && IS_DIR_SEPARATOR (path
[0])
7824 && filename_ncmp (path
+ 1, "lib", 3) == 0)
7826 && filename_ncmp (path
+ 1, "usr", 3) == 0
7827 && IS_DIR_SEPARATOR (path
[4])
7828 && filename_ncmp (path
+ 5, "lib", 3) == 0)))
7831 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
7834 /* Set up the various global variables to indicate that we're processing
7835 the input file named FILENAME. */
7838 set_input (const char *filename
)
7842 gcc_input_filename
= filename
;
7843 input_filename_length
= strlen (gcc_input_filename
);
7844 input_basename
= lbasename (gcc_input_filename
);
7846 /* Find a suffix starting with the last period,
7847 and set basename_length to exclude that suffix. */
7848 basename_length
= strlen (input_basename
);
7849 suffixed_basename_length
= basename_length
;
7850 p
= input_basename
+ basename_length
;
7851 while (p
!= input_basename
&& *p
!= '.')
7853 if (*p
== '.' && p
!= input_basename
)
7855 basename_length
= p
- input_basename
;
7856 input_suffix
= p
+ 1;
7861 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
7862 we will need to do a stat on the gcc_input_filename. The
7863 INPUT_STAT_SET signals that the stat is needed. */
7867 /* On fatal signals, delete all the temporary files. */
7870 fatal_signal (int signum
)
7872 signal (signum
, SIG_DFL
);
7873 delete_failure_queue ();
7874 delete_temp_files ();
7875 /* Get the same signal again, this time not handled,
7876 so its normal effect occurs. */
7877 kill (getpid (), signum
);
7880 /* Compare the contents of the two files named CMPFILE[0] and
7881 CMPFILE[1]. Return zero if they're identical, nonzero
7885 compare_files (char *cmpfile
[])
7888 FILE *temp
[2] = { NULL
, NULL
};
7894 void *map
[2] = { NULL
, NULL
};
7896 for (i
= 0; i
< 2; i
++)
7900 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
7902 error ("%s: could not determine length of compare-debug file %s",
7903 gcc_input_filename
, cmpfile
[i
]);
7908 length
[i
] = st
.st_size
;
7911 if (!ret
&& length
[0] != length
[1])
7913 error ("%s: %<-fcompare-debug%> failure (length)", gcc_input_filename
);
7918 for (i
= 0; i
< 2; i
++)
7920 int fd
= open (cmpfile
[i
], O_RDONLY
);
7923 error ("%s: could not open compare-debug file %s",
7924 gcc_input_filename
, cmpfile
[i
]);
7929 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
7932 if (map
[i
] == (void *) MAP_FAILED
)
7941 if (memcmp (map
[0], map
[1], length
[0]) != 0)
7943 error ("%s: %<-fcompare-debug%> failure", gcc_input_filename
);
7948 for (i
= 0; i
< 2; i
++)
7950 munmap ((caddr_t
) map
[i
], length
[i
]);
7959 for (i
= 0; i
< 2; i
++)
7961 temp
[i
] = fopen (cmpfile
[i
], "r");
7964 error ("%s: could not open compare-debug file %s",
7965 gcc_input_filename
, cmpfile
[i
]);
7971 if (!ret
&& temp
[0] && temp
[1])
7975 c0
= fgetc (temp
[0]);
7976 c1
= fgetc (temp
[1]);
7980 error ("%s: %<-fcompare-debug%> failure",
7981 gcc_input_filename
);
7990 for (i
= 1; i
>= 0; i
--)
7999 driver::driver (bool can_finalize
, bool debug
) :
8000 explicit_link_files (NULL
),
8001 decoded_options (NULL
)
8003 env
.init (can_finalize
, debug
);
8008 XDELETEVEC (explicit_link_files
);
8009 XDELETEVEC (decoded_options
);
8012 /* driver::main is implemented as a series of driver:: method calls. */
8015 driver::main (int argc
, char **argv
)
8019 set_progname (argv
[0]);
8020 expand_at_files (&argc
, &argv
);
8021 decode_argv (argc
, const_cast <const char **> (argv
));
8022 global_initializations ();
8023 build_multilib_strings ();
8025 putenv_COLLECT_AS_OPTIONS (assembler_options
);
8026 putenv_COLLECT_GCC (argv
[0]);
8027 maybe_putenv_COLLECT_LTO_WRAPPER ();
8028 maybe_putenv_OFFLOAD_TARGETS ();
8029 handle_unrecognized_options ();
8033 m_option_proposer
.suggest_completion (completion
);
8037 if (!maybe_print_and_exit ())
8040 early_exit
= prepare_infiles ();
8042 return get_exit_code ();
8044 do_spec_on_infiles ();
8045 maybe_run_linker (argv
[0]);
8047 return get_exit_code ();
8050 /* Locate the final component of argv[0] after any leading path, and set
8051 the program name accordingly. */
8054 driver::set_progname (const char *argv0
) const
8056 const char *p
= argv0
+ strlen (argv0
);
8057 while (p
!= argv0
&& !IS_DIR_SEPARATOR (p
[-1]))
8061 xmalloc_set_program_name (progname
);
8064 /* Expand any @ files within the command-line args,
8065 setting at_file_supplied if any were expanded. */
8068 driver::expand_at_files (int *argc
, char ***argv
) const
8070 char **old_argv
= *argv
;
8072 expandargv (argc
, argv
);
8074 /* Determine if any expansions were made. */
8075 if (*argv
!= old_argv
)
8076 at_file_supplied
= true;
8079 /* Decode the command-line arguments from argc/argv into the
8080 decoded_options array. */
8083 driver::decode_argv (int argc
, const char **argv
)
8085 init_opts_obstack ();
8086 init_options_struct (&global_options
, &global_options_set
);
8088 decode_cmdline_options_to_array (argc
, argv
,
8090 &decoded_options
, &decoded_options_count
);
8093 /* Perform various initializations and setup. */
8096 driver::global_initializations ()
8098 /* Unlock the stdio streams. */
8099 unlock_std_streams ();
8101 gcc_init_libintl ();
8103 diagnostic_initialize (global_dc
, 0);
8104 diagnostic_color_init (global_dc
);
8105 diagnostic_urls_init (global_dc
);
8107 #ifdef GCC_DRIVER_HOST_INITIALIZATION
8108 /* Perform host dependent initialization when needed. */
8109 GCC_DRIVER_HOST_INITIALIZATION
;
8112 if (atexit (delete_temp_files
) != 0)
8113 fatal_error (input_location
, "atexit failed");
8115 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
8116 signal (SIGINT
, fatal_signal
);
8118 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
8119 signal (SIGHUP
, fatal_signal
);
8121 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
8122 signal (SIGTERM
, fatal_signal
);
8124 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
8125 signal (SIGPIPE
, fatal_signal
);
8128 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
8129 receive the signal. A different setting is inheritable */
8130 signal (SIGCHLD
, SIG_DFL
);
8133 /* Parsing and gimplification sometimes need quite large stack.
8134 Increase stack size limits if possible. */
8135 stack_limit_increase (64 * 1024 * 1024);
8137 /* Allocate the argument vector. */
8140 obstack_init (&obstack
);
8143 /* Build multilib_select, et. al from the separate lines that make up each
8144 multilib selection. */
8147 driver::build_multilib_strings () const
8151 const char *const *q
= multilib_raw
;
8154 obstack_init (&multilib_obstack
);
8155 while ((p
= *q
++) != (char *) 0)
8156 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8158 obstack_1grow (&multilib_obstack
, 0);
8159 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
8161 q
= multilib_matches_raw
;
8162 while ((p
= *q
++) != (char *) 0)
8163 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8165 obstack_1grow (&multilib_obstack
, 0);
8166 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
8168 q
= multilib_exclusions_raw
;
8169 while ((p
= *q
++) != (char *) 0)
8170 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8172 obstack_1grow (&multilib_obstack
, 0);
8173 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
8175 q
= multilib_reuse_raw
;
8176 while ((p
= *q
++) != (char *) 0)
8177 obstack_grow (&multilib_obstack
, p
, strlen (p
));
8179 obstack_1grow (&multilib_obstack
, 0);
8180 multilib_reuse
= XOBFINISH (&multilib_obstack
, const char *);
8183 for (size_t i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
8186 obstack_1grow (&multilib_obstack
, ' ');
8187 obstack_grow (&multilib_obstack
,
8188 multilib_defaults_raw
[i
],
8189 strlen (multilib_defaults_raw
[i
]));
8193 obstack_1grow (&multilib_obstack
, 0);
8194 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
8198 /* Set up the spec-handling machinery. */
8201 driver::set_up_specs () const
8203 const char *spec_machine_suffix
;
8207 #ifdef INIT_ENVIRONMENT
8208 /* Set up any other necessary machine specific environment variables. */
8209 xputenv (INIT_ENVIRONMENT
);
8212 /* Make a table of what switches there are (switches, n_switches).
8213 Make a table of specified input files (infiles, n_infiles).
8214 Decode switches that are handled locally. */
8216 process_command (decoded_options_count
, decoded_options
);
8218 /* Initialize the vector of specs to just the default.
8219 This means one element containing 0s, as a terminator. */
8221 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
8222 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
8223 n_compilers
= n_default_compilers
;
8225 /* Read specs from a file if there is one. */
8227 machine_suffix
= concat (spec_host_machine
, dir_separator_str
, spec_version
,
8228 accel_dir_suffix
, dir_separator_str
, NULL
);
8229 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
8231 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
8232 /* Read the specs file unless it is a default one. */
8233 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
8234 read_specs (specs_file
, true, false);
8238 #ifdef ACCEL_COMPILER
8239 spec_machine_suffix
= machine_suffix
;
8241 spec_machine_suffix
= just_machine_suffix
;
8244 /* We need to check standard_exec_prefix/spec_machine_suffix/specs
8245 for any override of as, ld and libraries. */
8246 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
8247 + strlen (spec_machine_suffix
) + sizeof ("specs"));
8248 strcpy (specs_file
, standard_exec_prefix
);
8249 strcat (specs_file
, spec_machine_suffix
);
8250 strcat (specs_file
, "specs");
8251 if (access (specs_file
, R_OK
) == 0)
8252 read_specs (specs_file
, true, false);
8254 /* Process any configure-time defaults specified for the command line
8255 options, via OPTION_DEFAULT_SPECS. */
8256 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
8257 do_option_spec (option_default_specs
[i
].name
,
8258 option_default_specs
[i
].spec
);
8260 /* Process DRIVER_SELF_SPECS, adding any new options to the end
8261 of the command line. */
8263 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
8264 do_self_spec (driver_self_specs
[i
]);
8266 /* If not cross-compiling, look for executables in the standard
8268 if (*cross_compile
== '0')
8270 if (*md_exec_prefix
)
8272 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
8273 PREFIX_PRIORITY_LAST
, 0, 0);
8277 /* Process sysroot_suffix_spec. */
8278 if (*sysroot_suffix_spec
!= 0
8279 && !no_sysroot_suffix
8280 && do_spec_2 (sysroot_suffix_spec
, NULL
) == 0)
8282 if (argbuf
.length () > 1)
8283 error ("spec failure: more than one argument to "
8284 "%<SYSROOT_SUFFIX_SPEC%>");
8285 else if (argbuf
.length () == 1)
8286 target_sysroot_suffix
= xstrdup (argbuf
.last ());
8289 #ifdef HAVE_LD_SYSROOT
8290 /* Pass the --sysroot option to the linker, if it supports that. If
8291 there is a sysroot_suffix_spec, it has already been processed by
8292 this point, so target_system_root really is the system root we
8294 if (target_system_root
)
8296 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
8297 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
8298 set_spec ("link", XOBFINISH (&obstack
, const char *), false);
8302 /* Process sysroot_hdrs_suffix_spec. */
8303 if (*sysroot_hdrs_suffix_spec
!= 0
8304 && !no_sysroot_suffix
8305 && do_spec_2 (sysroot_hdrs_suffix_spec
, NULL
) == 0)
8307 if (argbuf
.length () > 1)
8308 error ("spec failure: more than one argument "
8309 "to %<SYSROOT_HEADERS_SUFFIX_SPEC%>");
8310 else if (argbuf
.length () == 1)
8311 target_sysroot_hdrs_suffix
= xstrdup (argbuf
.last ());
8314 /* Look for startfiles in the standard places. */
8315 if (*startfile_prefix_spec
!= 0
8316 && do_spec_2 (startfile_prefix_spec
, NULL
) == 0
8317 && do_spec_1 (" ", 0, NULL
) == 0)
8321 FOR_EACH_VEC_ELT (argbuf
, ndx
, arg
)
8322 add_sysrooted_prefix (&startfile_prefixes
, arg
, "BINUTILS",
8323 PREFIX_PRIORITY_LAST
, 0, 1);
8325 /* We should eventually get rid of all these and stick to
8326 startfile_prefix_spec exclusively. */
8327 else if (*cross_compile
== '0' || target_system_root
)
8329 if (*md_startfile_prefix
)
8330 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
8331 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
8333 if (*md_startfile_prefix_1
)
8334 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
8335 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
8337 /* If standard_startfile_prefix is relative, base it on
8338 standard_exec_prefix. This lets us move the installed tree
8339 as a unit. If GCC_EXEC_PREFIX is defined, base
8340 standard_startfile_prefix on that as well.
8342 If the prefix is relative, only search it for native compilers;
8343 otherwise we will search a directory containing host libraries. */
8344 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
8345 add_sysrooted_prefix (&startfile_prefixes
,
8346 standard_startfile_prefix
, "BINUTILS",
8347 PREFIX_PRIORITY_LAST
, 0, 1);
8348 else if (*cross_compile
== '0')
8350 add_prefix (&startfile_prefixes
,
8351 concat (gcc_exec_prefix
8352 ? gcc_exec_prefix
: standard_exec_prefix
,
8354 standard_startfile_prefix
, NULL
),
8355 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
8358 /* Sysrooted prefixes are relocated because target_system_root is
8359 also relocated by gcc_exec_prefix. */
8360 if (*standard_startfile_prefix_1
)
8361 add_sysrooted_prefix (&startfile_prefixes
,
8362 standard_startfile_prefix_1
, "BINUTILS",
8363 PREFIX_PRIORITY_LAST
, 0, 1);
8364 if (*standard_startfile_prefix_2
)
8365 add_sysrooted_prefix (&startfile_prefixes
,
8366 standard_startfile_prefix_2
, "BINUTILS",
8367 PREFIX_PRIORITY_LAST
, 0, 1);
8370 /* Process any user specified specs in the order given on the command
8372 for (struct user_specs
*uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
8374 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
8376 read_specs (filename
? filename
: uptr
->filename
, false, true);
8379 /* Process any user self specs. */
8381 struct spec_list
*sl
;
8382 for (sl
= specs
; sl
; sl
= sl
->next
)
8383 if (sl
->name_len
== sizeof "self_spec" - 1
8384 && !strcmp (sl
->name
, "self_spec"))
8385 do_self_spec (*sl
->ptr_spec
);
8390 enum save_temps save
;
8392 if (!compare_debug_second
)
8394 n_switches_debug_check
[1] = n_switches
;
8395 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
8396 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
8399 do_self_spec ("%:compare-debug-self-opt()");
8400 n_switches_debug_check
[0] = n_switches
;
8401 n_switches_alloc_debug_check
[0] = n_switches_alloc
;
8402 switches_debug_check
[0] = switches
;
8404 n_switches
= n_switches_debug_check
[1];
8405 n_switches_alloc
= n_switches_alloc_debug_check
[1];
8406 switches
= switches_debug_check
[1];
8409 /* Avoid crash when computing %j in this early. */
8410 save
= save_temps_flag
;
8411 save_temps_flag
= SAVE_TEMPS_NONE
;
8413 compare_debug
= -compare_debug
;
8414 do_self_spec ("%:compare-debug-self-opt()");
8416 save_temps_flag
= save
;
8418 if (!compare_debug_second
)
8420 n_switches_debug_check
[1] = n_switches
;
8421 n_switches_alloc_debug_check
[1] = n_switches_alloc
;
8422 switches_debug_check
[1] = switches
;
8423 compare_debug
= -compare_debug
;
8424 n_switches
= n_switches_debug_check
[0];
8425 n_switches_alloc
= n_switches_debug_check
[0];
8426 switches
= switches_debug_check
[0];
8431 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
8432 if (gcc_exec_prefix
)
8433 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_host_machine
,
8434 dir_separator_str
, spec_version
,
8435 accel_dir_suffix
, dir_separator_str
, NULL
);
8437 /* Now we have the specs.
8438 Set the `valid' bits for switches that match anything in any spec. */
8440 validate_all_switches ();
8442 /* Now that we have the switches and the specs, set
8443 the subdirectory based on the options. */
8444 set_multilib_dir ();
8447 /* Set up to remember the pathname of gcc and any options
8448 needed for collect. We use argv[0] instead of progname because
8449 we need the complete pathname. */
8452 driver::putenv_COLLECT_GCC (const char *argv0
) const
8454 obstack_init (&collect_obstack
);
8455 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
8456 obstack_grow (&collect_obstack
, argv0
, strlen (argv0
) + 1);
8457 xputenv (XOBFINISH (&collect_obstack
, char *));
8460 /* Set up to remember the pathname of the lto wrapper. */
8463 driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
8465 char *lto_wrapper_file
;
8468 lto_wrapper_file
= NULL
;
8470 lto_wrapper_file
= find_a_file (&exec_prefixes
, "lto-wrapper",
8472 if (lto_wrapper_file
)
8474 lto_wrapper_file
= convert_white_space (lto_wrapper_file
);
8475 set_static_spec_owned (<o_wrapper_spec
, lto_wrapper_file
);
8476 obstack_init (&collect_obstack
);
8477 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
8478 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
8479 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
8480 strlen (lto_wrapper_spec
) + 1);
8481 xputenv (XOBFINISH (&collect_obstack
, char *));
8486 /* Set up to remember the names of offload targets. */
8489 driver::maybe_putenv_OFFLOAD_TARGETS () const
8491 if (offload_targets
&& offload_targets
[0] != '\0')
8493 obstack_grow (&collect_obstack
, "OFFLOAD_TARGET_NAMES=",
8494 sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
8495 obstack_grow (&collect_obstack
, offload_targets
,
8496 strlen (offload_targets
) + 1);
8497 xputenv (XOBFINISH (&collect_obstack
, char *));
8498 #if OFFLOAD_DEFAULTED
8499 if (offload_targets_default
)
8500 xputenv ("OFFLOAD_TARGET_DEFAULT=1");
8504 free (offload_targets
);
8505 offload_targets
= NULL
;
8508 /* Reject switches that no pass was interested in. */
8511 driver::handle_unrecognized_options ()
8513 for (size_t i
= 0; (int) i
< n_switches
; i
++)
8514 if (! switches
[i
].validated
)
8516 const char *hint
= m_option_proposer
.suggest_option (switches
[i
].part1
);
8518 error ("unrecognized command-line option %<-%s%>;"
8519 " did you mean %<-%s%>?",
8520 switches
[i
].part1
, hint
);
8522 error ("unrecognized command-line option %<-%s%>",
8527 /* Handle the various -print-* options, returning 0 if the driver
8528 should exit, or nonzero if the driver should continue. */
8531 driver::maybe_print_and_exit () const
8533 if (print_search_dirs
)
8535 printf (_("install: %s%s\n"),
8536 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
8537 gcc_exec_prefix
? "" : machine_suffix
);
8538 printf (_("programs: %s\n"),
8539 build_search_list (&exec_prefixes
, "", false, false));
8540 printf (_("libraries: %s\n"),
8541 build_search_list (&startfile_prefixes
, "", false, true));
8545 if (print_file_name
)
8547 printf ("%s\n", find_file (print_file_name
));
8551 if (print_prog_name
)
8553 if (use_ld
!= NULL
&& ! strcmp (print_prog_name
, "ld"))
8555 /* Append USE_LD to the default linker. */
8556 #ifdef DEFAULT_LINKER
8558 # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
8559 int len
= (sizeof (DEFAULT_LINKER
)
8560 - sizeof (HOST_EXECUTABLE_SUFFIX
));
8564 char *default_linker
= xstrdup (DEFAULT_LINKER
);
8565 /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
8566 HOST_EXECUTABLE_SUFFIX. */
8567 if (! strcmp (&default_linker
[len
], HOST_EXECUTABLE_SUFFIX
))
8569 default_linker
[len
] = '\0';
8570 ld
= concat (default_linker
, use_ld
,
8571 HOST_EXECUTABLE_SUFFIX
, NULL
);
8576 ld
= concat (DEFAULT_LINKER
, use_ld
, NULL
);
8577 if (access (ld
, X_OK
) == 0)
8579 printf ("%s\n", ld
);
8583 print_prog_name
= concat (print_prog_name
, use_ld
, NULL
);
8585 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
8586 printf ("%s\n", (newname
? newname
: print_prog_name
));
8590 if (print_multi_lib
)
8592 print_multilib_info ();
8596 if (print_multi_directory
)
8598 if (multilib_dir
== NULL
)
8601 printf ("%s\n", multilib_dir
);
8605 if (print_multiarch
)
8607 if (multiarch_dir
== NULL
)
8610 printf ("%s\n", multiarch_dir
);
8616 if (target_system_root
)
8618 if (target_sysroot_suffix
)
8619 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
8621 printf ("%s\n", target_system_root
);
8626 if (print_multi_os_directory
)
8628 if (multilib_os_dir
== NULL
)
8631 printf ("%s\n", multilib_os_dir
);
8635 if (print_sysroot_headers_suffix
)
8637 if (*sysroot_hdrs_suffix_spec
)
8639 printf("%s\n", (target_sysroot_hdrs_suffix
8640 ? target_sysroot_hdrs_suffix
8645 /* The error status indicates that only one set of fixed
8646 headers should be built. */
8647 fatal_error (input_location
,
8648 "not configured with sysroot headers suffix");
8651 if (print_help_list
)
8657 printf (_("\nFor bug reporting instructions, please see:\n"));
8658 printf ("%s.\n", bug_report_url
);
8663 /* We do not exit here. Instead we have created a fake input file
8664 called 'help-dummy' which needs to be compiled, and we pass this
8665 on the various sub-processes, along with the --help switch.
8666 Ensure their output appears after ours. */
8667 fputc ('\n', stdout
);
8673 printf (_("%s %s%s\n"), progname
, pkgversion_string
,
8675 printf ("Copyright %s 2021 Free Software Foundation, Inc.\n",
8677 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
8678 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
8683 /* We do not exit here. We use the same mechanism of --help to print
8684 the version of the sub-processes. */
8685 fputc ('\n', stdout
);
8691 print_configuration (stderr
);
8699 /* Figure out what to do with each input file.
8700 Return true if we need to exit early from "main", false otherwise. */
8703 driver::prepare_infiles ()
8706 int lang_n_infiles
= 0;
8708 if (n_infiles
== added_libraries
)
8709 fatal_error (input_location
, "no input files");
8712 /* Early exit needed from main. */
8715 /* Make a place to record the compiler output file names
8716 that correspond to the input files. */
8719 i
+= lang_specific_extra_outfiles
;
8720 outfiles
= XCNEWVEC (const char *, i
);
8722 /* Record which files were specified explicitly as link input. */
8724 explicit_link_files
= XCNEWVEC (char, n_infiles
);
8726 combine_inputs
= have_o
|| flag_wpa
;
8728 for (i
= 0; (int) i
< n_infiles
; i
++)
8730 const char *name
= infiles
[i
].name
;
8731 struct compiler
*compiler
= lookup_compiler (name
,
8733 infiles
[i
].language
);
8735 if (compiler
&& !(compiler
->combinable
))
8736 combine_inputs
= false;
8738 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
8739 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
8740 infiles
[i
].incompiler
= compiler
;
8744 input_file_compiler
= compiler
;
8745 infiles
[i
].incompiler
= compiler
;
8749 /* Since there is no compiler for this input file, assume it is a
8751 explicit_link_files
[i
] = 1;
8752 infiles
[i
].incompiler
= NULL
;
8754 infiles
[i
].compiled
= false;
8755 infiles
[i
].preprocessed
= false;
8758 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
8759 fatal_error (input_location
,
8760 "cannot specify %<-o%> with %<-c%>, %<-S%> or %<-E%> "
8761 "with multiple files");
8763 /* No early exit needed from main; we can continue. */
8767 /* Run the spec machinery on each input file. */
8770 driver::do_spec_on_infiles () const
8774 for (i
= 0; (int) i
< n_infiles
; i
++)
8776 int this_file_error
= 0;
8778 /* Tell do_spec what to substitute for %i. */
8780 input_file_number
= i
;
8781 set_input (infiles
[i
].name
);
8783 if (infiles
[i
].compiled
)
8786 /* Use the same thing in %o, unless cp->spec says otherwise. */
8788 outfiles
[i
] = gcc_input_filename
;
8790 /* Figure out which compiler from the file's suffix. */
8793 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
8794 infiles
[i
].language
);
8796 if (input_file_compiler
)
8798 /* Ok, we found an applicable compiler. Run its spec. */
8800 if (input_file_compiler
->spec
[0] == '#')
8802 error ("%s: %s compiler not installed on this system",
8803 gcc_input_filename
, &input_file_compiler
->spec
[1]);
8804 this_file_error
= 1;
8812 free (debug_check_temp_file
[0]);
8813 debug_check_temp_file
[0] = NULL
;
8815 free (debug_check_temp_file
[1]);
8816 debug_check_temp_file
[1] = NULL
;
8819 value
= do_spec (input_file_compiler
->spec
);
8820 infiles
[i
].compiled
= true;
8822 this_file_error
= 1;
8823 else if (compare_debug
&& debug_check_temp_file
[0])
8826 inform (UNKNOWN_LOCATION
,
8827 "recompiling with %<-fcompare-debug%>");
8829 compare_debug
= -compare_debug
;
8830 n_switches
= n_switches_debug_check
[1];
8831 n_switches_alloc
= n_switches_alloc_debug_check
[1];
8832 switches
= switches_debug_check
[1];
8834 value
= do_spec (input_file_compiler
->spec
);
8836 compare_debug
= -compare_debug
;
8837 n_switches
= n_switches_debug_check
[0];
8838 n_switches_alloc
= n_switches_alloc_debug_check
[0];
8839 switches
= switches_debug_check
[0];
8843 error ("during %<-fcompare-debug%> recompilation");
8844 this_file_error
= 1;
8847 gcc_assert (debug_check_temp_file
[1]
8848 && filename_cmp (debug_check_temp_file
[0],
8849 debug_check_temp_file
[1]));
8852 inform (UNKNOWN_LOCATION
, "comparing final insns dumps");
8854 if (compare_files (debug_check_temp_file
))
8855 this_file_error
= 1;
8860 free (debug_check_temp_file
[0]);
8861 debug_check_temp_file
[0] = NULL
;
8863 free (debug_check_temp_file
[1]);
8864 debug_check_temp_file
[1] = NULL
;
8869 /* If this file's name does not contain a recognized suffix,
8870 record it as explicit linker input. */
8873 explicit_link_files
[i
] = 1;
8875 /* Clear the delete-on-failure queue, deleting the files in it
8876 if this compilation failed. */
8878 if (this_file_error
)
8880 delete_failure_queue ();
8883 /* If this compilation succeeded, don't delete those files later. */
8884 clear_failure_queue ();
8887 /* Reset the input file name to the first compile/object file name, for use
8888 with %b in LINK_SPEC. We use the first input file that we can find
8889 a compiler to compile it instead of using infiles.language since for
8890 languages other than C we use aliases that we then lookup later. */
8895 for (i
= 0; i
< n_infiles
; i
++)
8896 if (infiles
[i
].incompiler
8897 || (infiles
[i
].language
&& infiles
[i
].language
[0] != '*'))
8899 set_input (infiles
[i
].name
);
8906 /* Make sure INPUT_FILE_NUMBER points to first available open
8908 input_file_number
= n_infiles
;
8909 if (lang_specific_pre_link ())
8914 /* If we have to run the linker, do it now. */
8917 driver::maybe_run_linker (const char *argv0
) const
8920 int linker_was_run
= 0;
8921 int num_linker_inputs
;
8923 /* Determine if there are any linker input files. */
8924 num_linker_inputs
= 0;
8925 for (i
= 0; (int) i
< n_infiles
; i
++)
8926 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
8927 num_linker_inputs
++;
8929 /* Arrange for temporary file names created during linking to take
8930 on names related with the linker output rather than with the
8931 inputs when appropriate. */
8932 if (outbase
&& *outbase
)
8936 char *tofree
= dumpdir
;
8937 gcc_checking_assert (strlen (dumpdir
) == dumpdir_length
);
8938 dumpdir
= concat (dumpdir
, outbase
, ".", NULL
);
8942 dumpdir
= concat (outbase
, ".", NULL
);
8943 dumpdir_length
+= strlen (outbase
) + 1;
8944 dumpdir_trailing_dash_added
= true;
8946 else if (dumpdir_trailing_dash_added
)
8948 gcc_assert (dumpdir
[dumpdir_length
- 1] == '-');
8949 dumpdir
[dumpdir_length
- 1] = '.';
8952 if (dumpdir_trailing_dash_added
)
8954 gcc_assert (dumpdir_length
> 0);
8955 gcc_assert (dumpdir
[dumpdir_length
- 1] == '.');
8960 input_basename
= outbase
= NULL
;
8961 outbase_length
= suffixed_basename_length
= basename_length
= 0;
8963 /* Run ld to link all the compiler output files. */
8965 if (num_linker_inputs
> 0 && !seen_error () && print_subprocess_help
< 2)
8967 int tmp
= execution_count
;
8969 detect_jobserver ();
8973 #if HAVE_LTO_PLUGIN > 0
8974 #if HAVE_LTO_PLUGIN == 2
8975 const char *fno_use_linker_plugin
= "fno-use-linker-plugin";
8977 const char *fuse_linker_plugin
= "fuse-linker-plugin";
8981 /* We'll use ld if we can't find collect2. */
8982 if (! strcmp (linker_name_spec
, "collect2"))
8984 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
8986 set_static_spec_shared (&linker_name_spec
, "ld");
8989 #if HAVE_LTO_PLUGIN > 0
8990 #if HAVE_LTO_PLUGIN == 2
8991 if (!switch_matches (fno_use_linker_plugin
,
8992 fno_use_linker_plugin
8993 + strlen (fno_use_linker_plugin
), 0))
8995 if (switch_matches (fuse_linker_plugin
,
8997 + strlen (fuse_linker_plugin
), 0))
9000 char *temp_spec
= find_a_file (&exec_prefixes
,
9001 LTOPLUGINSONAME
, R_OK
,
9004 fatal_error (input_location
,
9005 "%<-fuse-linker-plugin%>, but %s not found",
9007 linker_plugin_file_spec
= convert_white_space (temp_spec
);
9010 set_static_spec_shared (<o_gcc_spec
, argv0
);
9013 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
9015 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
9016 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
9018 if (print_subprocess_help
== 1)
9020 printf (_("\nLinker options\n==============\n\n"));
9021 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
9022 " to the linker.\n\n"));
9025 int value
= do_spec (link_command_spec
);
9028 linker_was_run
= (tmp
!= execution_count
);
9031 /* If options said don't run linker,
9032 complain about input files to be given to the linker. */
9034 if (! linker_was_run
&& !seen_error ())
9035 for (i
= 0; (int) i
< n_infiles
; i
++)
9036 if (explicit_link_files
[i
]
9037 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
9039 warning (0, "%s: linker input file unused because linking not done",
9041 if (access (outfiles
[i
], F_OK
) < 0)
9042 /* This is can be an indication the user specifed an errorneous
9043 separated option value, (or used the wrong prefix for an
9045 error ("%s: linker input file not found: %m", outfiles
[i
]);
9049 /* The end of "main". */
9052 driver::final_actions () const
9054 /* Delete some or all of the temporary files we made. */
9057 delete_failure_queue ();
9058 delete_temp_files ();
9060 if (print_help_list
)
9062 printf (("\nFor bug reporting instructions, please see:\n"));
9063 printf ("%s\n", bug_report_url
);
9067 /* Detect whether jobserver is active and working. If not drop
9068 --jobserver-auth from MAKEFLAGS. */
9071 driver::detect_jobserver () const
9073 /* Detect jobserver and drop it if it's not working. */
9074 const char *makeflags
= env
.get ("MAKEFLAGS");
9075 if (makeflags
!= NULL
)
9077 const char *needle
= "--jobserver-auth=";
9078 const char *n
= strstr (makeflags
, needle
);
9085 = (sscanf (n
+ strlen (needle
), "%d,%d", &rfd
, &wfd
) == 2
9088 && is_valid_fd (rfd
)
9089 && is_valid_fd (wfd
));
9091 /* Drop the jobserver if it's not working now. */
9094 unsigned offset
= n
- makeflags
;
9095 char *dup
= xstrdup (makeflags
);
9098 const char *space
= strchr (makeflags
+ offset
, ' ');
9100 strcpy (dup
+ offset
, space
);
9101 xputenv (concat ("MAKEFLAGS=", dup
, NULL
));
9107 /* Determine what the exit code of the driver should be. */
9110 driver::get_exit_code () const
9112 return (signal_count
!= 0 ? 2
9113 : seen_error () ? (pass_exit_codes
? greatest_status
: 1)
9117 /* Find the proper compilation spec for the file name NAME,
9118 whose length is LENGTH. LANGUAGE is the specified language,
9119 or 0 if this file is to be passed to the linker. */
9121 static struct compiler
*
9122 lookup_compiler (const char *name
, size_t length
, const char *language
)
9124 struct compiler
*cp
;
9126 /* If this was specified by the user to be a linker input, indicate that. */
9127 if (language
!= 0 && language
[0] == '*')
9130 /* Otherwise, look for the language, if one is spec'd. */
9133 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
9134 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
9136 if (name
!= NULL
&& strcmp (name
, "-") == 0
9137 && (strcmp (cp
->suffix
, "@c-header") == 0
9138 || strcmp (cp
->suffix
, "@c++-header") == 0)
9140 fatal_error (input_location
,
9141 "cannot use %<-%> as input filename for a "
9142 "precompiled header");
9147 error ("language %s not recognized", language
);
9151 /* Look for a suffix. */
9152 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
9154 if (/* The suffix `-' matches only the file name `-'. */
9155 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
9156 || (strlen (cp
->suffix
) < length
9157 /* See if the suffix matches the end of NAME. */
9158 && !strcmp (cp
->suffix
,
9159 name
+ length
- strlen (cp
->suffix
))
9164 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
9165 /* Look again, but case-insensitively this time. */
9167 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
9169 if (/* The suffix `-' matches only the file name `-'. */
9170 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
9171 || (strlen (cp
->suffix
) < length
9172 /* See if the suffix matches the end of NAME. */
9173 && ((!strcmp (cp
->suffix
,
9174 name
+ length
- strlen (cp
->suffix
))
9175 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
9176 && !strcasecmp (cp
->suffix
,
9177 name
+ length
- strlen (cp
->suffix
)))
9183 if (cp
>= compilers
)
9185 if (cp
->spec
[0] != '@')
9186 /* A non-alias entry: return it. */
9189 /* An alias entry maps a suffix to a language.
9190 Search for the language; pass 0 for NAME and LENGTH
9191 to avoid infinite recursion if language not found. */
9192 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
9198 save_string (const char *s
, int len
)
9200 char *result
= XNEWVEC (char, len
+ 1);
9202 gcc_checking_assert (strlen (s
) >= (unsigned int) len
);
9203 memcpy (result
, s
, len
);
9210 validate_switches_from_spec (const char *spec
, bool user
)
9212 const char *p
= spec
;
9218 || (*p
== 'W' && *++p
== '{')
9219 || (*p
== '@' && *++p
== '{')))
9220 /* We have a switch spec. */
9221 p
= validate_switches (p
+ 1, user
, *p
== '{');
9225 validate_all_switches (void)
9227 struct compiler
*comp
;
9228 struct spec_list
*spec
;
9230 for (comp
= compilers
; comp
->spec
; comp
++)
9231 validate_switches_from_spec (comp
->spec
, false);
9233 /* Look through the linked list of specs read from the specs file. */
9234 for (spec
= specs
; spec
; spec
= spec
->next
)
9235 validate_switches_from_spec (*spec
->ptr_spec
, spec
->user_p
);
9237 validate_switches_from_spec (link_command_spec
, false);
9240 /* Look at the switch-name that comes after START and mark as valid
9241 all supplied switches that match it. If BRACED, handle other
9242 switches after '|' and '&', and specs after ':' until ';' or '}',
9243 going back for more switches after ';'. Without BRACED, handle
9244 only one atom. Return a pointer to whatever follows the handled
9245 items, after the closing brace if BRACED. */
9248 validate_switches (const char *start
, bool user_spec
, bool braced
)
9250 const char *p
= start
;
9254 bool suffix
= false;
9255 bool starred
= false;
9257 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
9266 if (*p
== '.' || *p
== ',')
9270 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
9271 || *p
== ',' || *p
== '.' || *p
== '@')
9276 starred
= true, p
++;
9282 /* Mark all matching switches as valid. */
9283 for (i
= 0; i
< n_switches
; i
++)
9284 if (!strncmp (switches
[i
].part1
, atom
, len
)
9285 && (starred
|| switches
[i
].part1
[len
] == '\0')
9286 && (switches
[i
].known
|| user_spec
))
9287 switches
[i
].validated
= true;
9294 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
9297 if (*p
&& p
[-1] == ':')
9299 while (*p
&& *p
!= ';' && *p
!= '}')
9304 if (*p
== '{' || *p
== '<')
9305 p
= validate_switches (p
+1, user_spec
, *p
== '{');
9306 else if (p
[0] == 'W' && p
[1] == '{')
9307 p
= validate_switches (p
+2, user_spec
, true);
9308 else if (p
[0] == '@' && p
[1] == '{')
9309 p
= validate_switches (p
+2, user_spec
, true);
9316 if (*p
&& p
[-1] == ';')
9330 static struct mdswitchstr
*mdswitches
;
9331 static int n_mdswitches
;
9333 /* Check whether a particular argument was used. The first time we
9334 canonicalize the switches to keep only the ones we care about. */
9339 int operator () (const char *p
, int len
);
9346 const char *replace
;
9351 mswitchstr
*mswitches
;
9356 used_arg_t used_arg
;
9359 used_arg_t::operator () (const char *p
, int len
)
9365 struct mswitchstr
*matches
;
9369 /* Break multilib_matches into the component strings of string
9370 and replacement string. */
9371 for (q
= multilib_matches
; *q
!= '\0'; q
++)
9376 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
9378 q
= multilib_matches
;
9387 fatal_error (input_location
, "multilib spec %qs is invalid",
9392 matches
[i
].len
= q
- matches
[i
].str
;
9394 matches
[i
].replace
= ++q
;
9395 while (*q
!= ';' && *q
!= '\0')
9398 goto invalid_matches
;
9401 matches
[i
].rep_len
= q
- matches
[i
].replace
;
9407 /* Now build a list of the replacement string for switches that we care
9408 about. Make sure we allocate at least one entry. This prevents
9409 xmalloc from calling fatal, and prevents us from re-executing this
9412 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
9413 for (i
= 0; i
< n_switches
; i
++)
9414 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
9416 int xlen
= strlen (switches
[i
].part1
);
9417 for (j
= 0; j
< cnt
; j
++)
9418 if (xlen
== matches
[j
].len
9419 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
9421 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
9422 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
9423 mswitches
[n_mswitches
].replace
= (char *) 0;
9424 mswitches
[n_mswitches
].rep_len
= 0;
9430 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
9431 on the command line nor any options mutually incompatible with
9433 for (i
= 0; i
< n_mdswitches
; i
++)
9437 for (q
= multilib_options
; *q
!= '\0'; *q
&& q
++)
9443 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
9444 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
9446 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
9453 if (*q
!= ' ' && *q
!= '\0')
9455 while (*r
!= ' ' && *r
!= '\0')
9458 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
9461 if (used_arg (r
, q
- r
))
9466 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
9467 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
9468 mswitches
[n_mswitches
].replace
= (char *) 0;
9469 mswitches
[n_mswitches
].rep_len
= 0;
9482 for (i
= 0; i
< n_mswitches
; i
++)
9483 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
9489 void used_arg_t::finalize ()
9491 XDELETEVEC (mswitches
);
9498 default_arg (const char *p
, int len
)
9502 for (i
= 0; i
< n_mdswitches
; i
++)
9503 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
9509 /* Work out the subdirectory to use based on the options. The format of
9510 multilib_select is a list of elements. Each element is a subdirectory
9511 name followed by a list of options followed by a semicolon. The format
9512 of multilib_exclusions is the same, but without the preceding
9513 directory. First gcc will check the exclusions, if none of the options
9514 beginning with an exclamation point are present, and all of the other
9515 options are present, then we will ignore this completely. Passing
9516 that, gcc will consider each multilib_select in turn using the same
9517 rules for matching the options. If a match is found, that subdirectory
9519 A subdirectory name is optionally followed by a colon and the corresponding
9523 set_multilib_dir (void)
9526 unsigned int this_path_len
;
9527 const char *this_path
, *this_arg
;
9528 const char *start
, *end
;
9530 int ok
, ndfltok
, first
;
9533 start
= multilib_defaults
;
9534 while (*start
== ' ' || *start
== '\t')
9536 while (*start
!= '\0')
9539 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
9541 while (*start
== ' ' || *start
== '\t')
9549 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
9550 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
9552 while (*start
== ' ' || *start
== '\t')
9558 for (end
= start
+ 1;
9559 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
9562 obstack_grow (&multilib_obstack
, start
, end
- start
);
9563 obstack_1grow (&multilib_obstack
, 0);
9564 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
9565 mdswitches
[i
++].len
= end
- start
;
9572 p
= multilib_exclusions
;
9575 /* Ignore newlines. */
9582 /* Check the arguments. */
9589 fatal_error (input_location
, "multilib exclusions %qs is invalid",
9590 multilib_exclusions
);
9600 while (*p
!= ' ' && *p
!= ';')
9603 goto invalid_exclusions
;
9607 if (*this_arg
!= '!')
9615 ok
= used_arg (this_arg
, p
- this_arg
);
9630 p
= multilib_select
;
9632 /* Append multilib reuse rules if any. With those rules, we can reuse
9633 one multilib for certain different options sets. */
9634 if (strlen (multilib_reuse
) > 0)
9635 p
= concat (p
, multilib_reuse
, NULL
);
9639 /* Ignore newlines. */
9646 /* Get the initial path. */
9653 fatal_error (input_location
, "multilib select %qs %qs is invalid",
9654 multilib_select
, multilib_reuse
);
9658 this_path_len
= p
- this_path
;
9660 /* Check the arguments. */
9667 goto invalid_select
;
9676 while (*p
!= ' ' && *p
!= ';')
9679 goto invalid_select
;
9683 if (*this_arg
!= '!')
9691 /* If this is a default argument, we can just ignore it.
9692 This is true even if this_arg begins with '!'. Beginning
9693 with '!' does not mean that this argument is necessarily
9694 inappropriate for this library: it merely means that
9695 there is a more specific library which uses this
9696 argument. If this argument is a default, we need not
9697 consider that more specific library. */
9698 ok
= used_arg (this_arg
, p
- this_arg
);
9705 if (default_arg (this_arg
, p
- this_arg
))
9714 if (this_path_len
!= 1
9715 || this_path
[0] != '.')
9717 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
9720 strncpy (new_multilib_dir
, this_path
, this_path_len
);
9721 new_multilib_dir
[this_path_len
] = '\0';
9722 q
= strchr (new_multilib_dir
, ':');
9725 multilib_dir
= new_multilib_dir
;
9732 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
9734 while (q
< end
&& *q
!= ':')
9738 const char *q2
= q
+ 1, *ml_end
= end
;
9739 char *new_multilib_os_dir
;
9741 while (q2
< end
&& *q2
!= ':')
9745 if (ml_end
- q
== 1)
9746 multilib_os_dir
= xstrdup (".");
9749 new_multilib_os_dir
= XNEWVEC (char, ml_end
- q
);
9750 memcpy (new_multilib_os_dir
, q
+ 1, ml_end
- q
- 1);
9751 new_multilib_os_dir
[ml_end
- q
- 1] = '\0';
9752 multilib_os_dir
= new_multilib_os_dir
;
9755 if (q2
< end
&& *q2
== ':')
9757 char *new_multiarch_dir
= XNEWVEC (char, end
- q2
);
9758 memcpy (new_multiarch_dir
, q2
+ 1, end
- q2
- 1);
9759 new_multiarch_dir
[end
- q2
- 1] = '\0';
9760 multiarch_dir
= new_multiarch_dir
;
9769 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
9770 && strcmp (multilib_os_dir
, ".") == 0)
9772 free (CONST_CAST (char *, multilib_os_dir
));
9773 multilib_os_dir
= NULL
;
9775 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
9776 multilib_os_dir
= multilib_dir
;
9779 /* Print out the multiple library subdirectory selection
9780 information. This prints out a series of lines. Each line looks
9781 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
9782 required. Only the desired options are printed out, the negative
9783 matches. The options are print without a leading dash. There are
9784 no spaces to make it easy to use the information in the shell.
9785 Each subdirectory is printed only once. This assumes the ordering
9786 generated by the genmultilib script. Also, we leave out ones that match
9790 print_multilib_info (void)
9792 const char *p
= multilib_select
;
9793 const char *last_path
= 0, *this_path
;
9796 unsigned int last_path_len
= 0;
9801 /* Ignore newlines. */
9808 /* Get the initial path. */
9815 fatal_error (input_location
,
9816 "multilib select %qs is invalid", multilib_select
);
9822 /* When --disable-multilib was used but target defines
9823 MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
9824 with .:: for multiarch configurations) are there just to find
9825 multilib_os_dir, so skip them from output. */
9826 if (this_path
[0] == '.' && this_path
[1] == ':' && this_path
[2] != ':')
9829 /* Check for matches with the multilib_exclusions. We don't bother
9830 with the '!' in either list. If any of the exclusion rules match
9831 all of its options with the select rule, we skip it. */
9833 const char *e
= multilib_exclusions
;
9834 const char *this_arg
;
9839 /* Ignore newlines. */
9846 /* Check the arguments. */
9855 fatal_error (input_location
,
9856 "multilib exclusion %qs is invalid",
9857 multilib_exclusions
);
9868 while (*e
!= ' ' && *e
!= ';')
9871 goto invalid_exclusion
;
9879 int len
= e
- this_arg
;
9882 goto invalid_select
;
9886 while (*q
!= ' ' && *q
!= ';')
9889 goto invalid_select
;
9893 if (! strncmp (arg
, this_arg
,
9894 (len
< q
- arg
) ? q
- arg
: len
)
9895 || default_arg (this_arg
, e
- this_arg
))
9925 /* If this is a duplicate, skip it. */
9926 skip
= (last_path
!= 0
9927 && (unsigned int) (p
- this_path
) == last_path_len
9928 && ! filename_ncmp (last_path
, this_path
, last_path_len
));
9930 last_path
= this_path
;
9931 last_path_len
= p
- this_path
;
9934 /* If all required arguments are default arguments, and no default
9935 arguments appear in the ! argument list, then we can skip it.
9936 We will already have printed a directory identical to this one
9937 which does not require that default argument. */
9941 bool default_arg_ok
= false;
9949 goto invalid_select
;
9960 while (*q
!= ' ' && *q
!= ';')
9963 goto invalid_select
;
9967 if (default_arg (arg
, q
- arg
))
9969 /* Stop checking if any default arguments appeared in not
9973 default_arg_ok
= false;
9977 default_arg_ok
= true;
9981 /* Stop checking if any required argument is not provided by
9982 default arguments. */
9983 default_arg_ok
= false;
9991 /* Make sure all default argument is OK for this multi-lib set. */
10002 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
10013 goto invalid_select
;
10021 use_arg
= *p
!= '!';
10026 while (*p
!= ' ' && *p
!= ';')
10029 goto invalid_select
;
10041 /* If there are extra options, print them now. */
10042 if (multilib_extra
&& *multilib_extra
)
10044 int print_at
= TRUE
;
10047 for (q
= multilib_extra
; *q
!= '\0'; q
++)
10068 /* getenv built-in spec function.
10070 Returns the value of the environment variable given by its first argument,
10071 concatenated with the second argument. If the variable is not defined, a
10072 fatal error is issued unless such undefs are internally allowed, in which
10073 case the variable name prefixed by a '/' is used as the variable value.
10075 The leading '/' allows using the result at a spot where a full path would
10076 normally be expected and when the actual value doesn't really matter since
10077 undef vars are allowed. */
10079 static const char *
10080 getenv_spec_function (int argc
, const char **argv
)
10083 const char *varname
;
10093 value
= env
.get (varname
);
10095 /* If the variable isn't defined and this is allowed, craft our expected
10096 return value. Assume variable names used in specs strings don't contain
10097 any active spec character so don't need escaping. */
10098 if (!value
&& spec_undefvar_allowed
)
10100 result
= XNEWVAR (char, strlen(varname
) + 2);
10101 sprintf (result
, "/%s", varname
);
10106 fatal_error (input_location
,
10107 "environment variable %qs not defined", varname
);
10109 /* We have to escape every character of the environment variable so
10110 they are not interpreted as active spec characters. A
10111 particularly painful case is when we are reading a variable
10112 holding a windows path complete with \ separators. */
10113 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
10114 result
= XNEWVAR (char, len
);
10115 for (ptr
= result
; *value
; ptr
+= 2)
10121 strcpy (ptr
, argv
[1]);
10126 /* if-exists built-in spec function.
10128 Checks to see if the file specified by the absolute pathname in
10129 ARGS exists. Returns that pathname if found.
10131 The usual use for this function is to check for a library file
10132 (whose name has been expanded with %s). */
10134 static const char *
10135 if_exists_spec_function (int argc
, const char **argv
)
10137 /* Must have only one argument. */
10138 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
10144 /* if-exists-else built-in spec function.
10146 This is like if-exists, but takes an additional argument which
10147 is returned if the first argument does not exist. */
10149 static const char *
10150 if_exists_else_spec_function (int argc
, const char **argv
)
10152 /* Must have exactly two arguments. */
10156 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
10162 /* if-exists-then-else built-in spec function.
10164 Checks to see if the file specified by the absolute pathname in
10165 the first arg exists. Returns the second arg if so, otherwise returns
10166 the third arg if it is present. */
10168 static const char *
10169 if_exists_then_else_spec_function (int argc
, const char **argv
)
10172 /* Must have two or three arguments. */
10173 if (argc
!= 2 && argc
!= 3)
10176 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
10185 /* sanitize built-in spec function.
10187 This returns non-NULL, if sanitizing address, thread or
10188 any of the undefined behavior sanitizers. */
10190 static const char *
10191 sanitize_spec_function (int argc
, const char **argv
)
10196 if (strcmp (argv
[0], "address") == 0)
10197 return (flag_sanitize
& SANITIZE_USER_ADDRESS
) ? "" : NULL
;
10198 if (strcmp (argv
[0], "hwaddress") == 0)
10199 return (flag_sanitize
& SANITIZE_USER_HWADDRESS
) ? "" : NULL
;
10200 if (strcmp (argv
[0], "kernel-address") == 0)
10201 return (flag_sanitize
& SANITIZE_KERNEL_ADDRESS
) ? "" : NULL
;
10202 if (strcmp (argv
[0], "kernel-hwaddress") == 0)
10203 return (flag_sanitize
& SANITIZE_KERNEL_HWADDRESS
) ? "" : NULL
;
10204 if (strcmp (argv
[0], "thread") == 0)
10205 return (flag_sanitize
& SANITIZE_THREAD
) ? "" : NULL
;
10206 if (strcmp (argv
[0], "undefined") == 0)
10207 return ((flag_sanitize
10208 & (SANITIZE_UNDEFINED
| SANITIZE_UNDEFINED_NONDEFAULT
))
10209 && !flag_sanitize_undefined_trap_on_error
) ? "" : NULL
;
10210 if (strcmp (argv
[0], "leak") == 0)
10211 return ((flag_sanitize
10212 & (SANITIZE_ADDRESS
| SANITIZE_LEAK
| SANITIZE_THREAD
))
10213 == SANITIZE_LEAK
) ? "" : NULL
;
10217 /* replace-outfile built-in spec function.
10219 This looks for the first argument in the outfiles array's name and
10220 replaces it with the second argument. */
10222 static const char *
10223 replace_outfile_spec_function (int argc
, const char **argv
)
10226 /* Must have exactly two arguments. */
10230 for (i
= 0; i
< n_infiles
; i
++)
10232 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
10233 outfiles
[i
] = xstrdup (argv
[1]);
10238 /* remove-outfile built-in spec function.
10240 * This looks for the first argument in the outfiles array's name and
10243 static const char *
10244 remove_outfile_spec_function (int argc
, const char **argv
)
10247 /* Must have exactly one argument. */
10251 for (i
= 0; i
< n_infiles
; i
++)
10253 if (outfiles
[i
] && !filename_cmp (outfiles
[i
], argv
[0]))
10254 outfiles
[i
] = NULL
;
10259 /* Given two version numbers, compares the two numbers.
10260 A version number must match the regular expression
10261 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
10264 compare_version_strings (const char *v1
, const char *v2
)
10269 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
10270 REG_EXTENDED
| REG_NOSUB
) != 0)
10272 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
10273 if (rresult
== REG_NOMATCH
)
10274 fatal_error (input_location
, "invalid version number %qs", v1
);
10275 else if (rresult
!= 0)
10277 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
10278 if (rresult
== REG_NOMATCH
)
10279 fatal_error (input_location
, "invalid version number %qs", v2
);
10280 else if (rresult
!= 0)
10283 return strverscmp (v1
, v2
);
10287 /* version_compare built-in spec function.
10289 This takes an argument of the following form:
10291 <comparison-op> <arg1> [<arg2>] <switch> <result>
10293 and produces "result" if the comparison evaluates to true,
10294 and nothing if it doesn't.
10296 The supported <comparison-op> values are:
10298 >= true if switch is a later (or same) version than arg1
10300 < true if switch is an earlier version than arg1
10302 >< true if switch is arg1 or later, and earlier than arg2
10303 <> true if switch is earlier than arg1 or is arg2 or later
10305 If the switch is not present, the condition is false unless
10306 the first character of the <comparison-op> is '!'.
10309 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
10310 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
10312 static const char *
10313 version_compare_spec_function (int argc
, const char **argv
)
10317 const char *switch_value
= NULL
;
10322 fatal_error (input_location
, "too few arguments to %%:version-compare");
10323 if (argv
[0][0] == '\0')
10325 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
10327 if (argc
!= nargs
+ 3)
10328 fatal_error (input_location
, "too many arguments to %%:version-compare");
10330 switch_len
= strlen (argv
[nargs
+ 1]);
10331 for (i
= 0; i
< n_switches
; i
++)
10332 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
10333 && check_live_switch (i
, switch_len
))
10334 switch_value
= switches
[i
].part1
+ switch_len
;
10336 if (switch_value
== NULL
)
10337 comp1
= comp2
= -1;
10340 comp1
= compare_version_strings (switch_value
, argv
[1]);
10342 comp2
= compare_version_strings (switch_value
, argv
[2]);
10344 comp2
= -1; /* This value unused. */
10347 switch (argv
[0][0] << 8 | argv
[0][1])
10349 case '>' << 8 | '=':
10350 result
= comp1
>= 0;
10352 case '!' << 8 | '<':
10353 result
= comp1
>= 0 || switch_value
== NULL
;
10356 result
= comp1
< 0;
10358 case '!' << 8 | '>':
10359 result
= comp1
< 0 || switch_value
== NULL
;
10361 case '>' << 8 | '<':
10362 result
= comp1
>= 0 && comp2
< 0;
10364 case '<' << 8 | '>':
10365 result
= comp1
< 0 || comp2
>= 0;
10369 fatal_error (input_location
,
10370 "unknown operator %qs in %%:version-compare", argv
[0]);
10375 return argv
[nargs
+ 2];
10378 /* %:include builtin spec function. This differs from %include in that it
10379 can be nested inside a spec, and thus be conditionalized. It takes
10380 one argument, the filename, and looks for it in the startfile path.
10381 The result is always NULL, i.e. an empty expansion. */
10383 static const char *
10384 include_spec_function (int argc
, const char **argv
)
10391 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
10392 read_specs (file
? file
: argv
[0], false, false);
10397 /* %:find-file spec function. This function replaces its argument by
10398 the file found through find_file, that is the -print-file-name gcc
10400 static const char *
10401 find_file_spec_function (int argc
, const char **argv
)
10408 file
= find_file (argv
[0]);
10413 /* %:find-plugindir spec function. This function replaces its argument
10414 by the -iplugindir=<dir> option. `dir' is found through find_file, that
10415 is the -print-file-name gcc program option. */
10416 static const char *
10417 find_plugindir_spec_function (int argc
, const char **argv ATTRIBUTE_UNUSED
)
10419 const char *option
;
10424 option
= concat ("-iplugindir=", find_file ("plugin"), NULL
);
10429 /* %:print-asm-header spec function. Print a banner to say that the
10430 following output is from the assembler. */
10432 static const char *
10433 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
10434 const char **argv ATTRIBUTE_UNUSED
)
10436 printf (_("Assembler options\n=================\n\n"));
10437 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
10442 /* Get a random number for -frandom-seed */
10444 static unsigned HOST_WIDE_INT
10445 get_random_number (void)
10447 unsigned HOST_WIDE_INT ret
= 0;
10450 fd
= open ("/dev/urandom", O_RDONLY
);
10453 read (fd
, &ret
, sizeof (HOST_WIDE_INT
));
10459 /* Get some more or less random data. */
10460 #ifdef HAVE_GETTIMEOFDAY
10464 gettimeofday (&tv
, NULL
);
10465 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
10469 time_t now
= time (NULL
);
10471 if (now
!= (time_t)-1)
10472 ret
= (unsigned) now
;
10476 return ret
^ getpid ();
10479 /* %:compare-debug-dump-opt spec function. Save the last argument,
10480 expected to be the last -fdump-final-insns option, or generate a
10483 static const char *
10484 compare_debug_dump_opt_spec_function (int arg
,
10485 const char **argv ATTRIBUTE_UNUSED
)
10490 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
10493 fatal_error (input_location
,
10494 "too many arguments to %%:compare-debug-dump-opt");
10496 do_spec_2 ("%{fdump-final-insns=*:%*}", NULL
);
10497 do_spec_1 (" ", 0, NULL
);
10499 if (argbuf
.length () > 0
10500 && strcmp (argv
[argbuf
.length () - 1], ".") != 0)
10502 if (!compare_debug
)
10505 name
= xstrdup (argv
[argbuf
.length () - 1]);
10510 if (argbuf
.length () > 0)
10511 do_spec_2 ("%B.gkd", NULL
);
10512 else if (!compare_debug
)
10515 do_spec_2 ("%{!save-temps*:%g.gkd}%{save-temps*:%B.gkd}", NULL
);
10517 do_spec_1 (" ", 0, NULL
);
10519 gcc_assert (argbuf
.length () > 0);
10521 name
= xstrdup (argbuf
.last ());
10523 char *arg
= quote_spec (xstrdup (name
));
10524 ret
= concat ("-fdump-final-insns=", arg
, NULL
);
10528 which
= compare_debug
< 0;
10529 debug_check_temp_file
[which
] = name
;
10533 unsigned HOST_WIDE_INT value
= get_random_number ();
10535 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
10541 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
10552 /* %:compare-debug-self-opt spec function. Expands to the options
10553 that are to be passed in the second compilation of
10556 static const char *
10557 compare_debug_self_opt_spec_function (int arg
,
10558 const char **argv ATTRIBUTE_UNUSED
)
10561 fatal_error (input_location
,
10562 "too many arguments to %%:compare-debug-self-opt");
10564 if (compare_debug
>= 0)
10568 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
10569 %<fdump-final-insns=* -w -S -o %j \
10570 %{!fcompare-debug-second:-fcompare-debug-second} \
10571 ", compare_debug_opt
, NULL
);
10574 /* %:pass-through-libs spec function. Finds all -l options and input
10575 file names in the lib spec passed to it, and makes a list of them
10576 prepended with the plugin option to cause them to be passed through
10577 to the final link after all the new object files have been added. */
10580 pass_through_libs_spec_func (int argc
, const char **argv
)
10582 char *prepended
= xstrdup (" ");
10584 /* Shlemiel the painter's algorithm. Innately horrible, but at least
10585 we know that there will never be more than a handful of strings to
10586 concat, and it's only once per run, so it's not worth optimising. */
10587 for (n
= 0; n
< argc
; n
++)
10589 char *old
= prepended
;
10590 /* Anything that isn't an option is a full path to an output
10591 file; pass it through if it ends in '.a'. Among options,
10593 if (argv
[n
][0] == '-' && argv
[n
][1] == 'l')
10595 const char *lopt
= argv
[n
] + 2;
10596 /* Handle both joined and non-joined -l options. If for any
10597 reason there's a trailing -l with no joined or following
10598 arg just discard it. */
10599 if (!*lopt
&& ++n
>= argc
)
10603 prepended
= concat (prepended
, "-plugin-opt=-pass-through=-l",
10606 else if (!strcmp (".a", argv
[n
] + strlen (argv
[n
]) - 2))
10608 prepended
= concat (prepended
, "-plugin-opt=-pass-through=",
10609 argv
[n
], " ", NULL
);
10611 if (prepended
!= old
)
10618 not_actual_file_p (const char *name
)
10620 return (strcmp (name
, "-") == 0
10621 || strcmp (name
, HOST_BIT_BUCKET
) == 0);
10624 /* %:dumps spec function. Take an optional argument that overrides
10625 the default extension for -dumpbase and -dumpbase-ext.
10626 Return -dumpdir, -dumpbase and -dumpbase-ext, if needed. */
10628 dumps_spec_func (int argc
, const char **argv ATTRIBUTE_UNUSED
)
10630 const char *ext
= dumpbase_ext
;
10633 char *args
[3] = { NULL
, NULL
, NULL
};
10636 /* Do not compute a default for -dumpbase-ext when -dumpbase was
10637 given explicitly. */
10638 if (dumpbase
&& *dumpbase
&& !ext
)
10643 /* Do not override the explicitly-specified -dumpbase-ext with
10644 the specs-provided overrider. */
10648 else if (argc
!= 0)
10649 fatal_error (input_location
, "too many arguments for %%:dumps");
10653 p
= quote_spec_arg (xstrdup (dumpdir
));
10654 args
[nargs
++] = concat (" -dumpdir ", p
, NULL
);
10659 ext
= input_basename
+ basename_length
;
10661 /* Use the precomputed outbase, or compute dumpbase from
10662 input_basename, just like %b would. */
10665 if (dumpbase
&& *dumpbase
)
10667 base
= xstrdup (dumpbase
);
10668 p
= base
+ outbase_length
;
10669 gcc_checking_assert (strncmp (base
, outbase
, outbase_length
) == 0);
10670 gcc_checking_assert (strcmp (p
, ext
) == 0);
10672 else if (outbase_length
)
10674 base
= xstrndup (outbase
, outbase_length
);
10679 base
= xstrndup (input_basename
, suffixed_basename_length
);
10680 p
= base
+ basename_length
;
10683 if (compare_debug
< 0 || !p
|| strcmp (p
, ext
) != 0)
10689 if (compare_debug
< 0)
10694 p
= concat (base
, gk
, ext
, NULL
);
10700 base
= quote_spec_arg (base
);
10701 args
[nargs
++] = concat (" -dumpbase ", base
, NULL
);
10706 p
= quote_spec_arg (xstrdup (ext
));
10707 args
[nargs
++] = concat (" -dumpbase-ext ", p
, NULL
);
10711 const char *ret
= concat (args
[0], args
[1], args
[2], NULL
);
10713 free (args
[--nargs
]);
10718 /* Returns "" if ARGV[ARGC - 2] is greater than ARGV[ARGC-1].
10719 Otherwise, return NULL. */
10721 static const char *
10722 greater_than_spec_func (int argc
, const char **argv
)
10729 gcc_assert (argc
>= 2);
10731 long arg
= strtol (argv
[argc
- 2], &converted
, 10);
10732 gcc_assert (converted
!= argv
[argc
- 2]);
10734 long lim
= strtol (argv
[argc
- 1], &converted
, 10);
10735 gcc_assert (converted
!= argv
[argc
- 1]);
10743 /* Returns "" if debug_info_level is greater than ARGV[ARGC-1].
10744 Otherwise, return NULL. */
10746 static const char *
10747 debug_level_greater_than_spec_func (int argc
, const char **argv
)
10752 fatal_error (input_location
,
10753 "wrong number of arguments to %%:debug-level-gt");
10755 long arg
= strtol (argv
[0], &converted
, 10);
10756 gcc_assert (converted
!= argv
[0]);
10758 if (debug_info_level
> arg
)
10764 /* Returns "" if dwarf_version is greater than ARGV[ARGC-1].
10765 Otherwise, return NULL. */
10767 static const char *
10768 dwarf_version_greater_than_spec_func (int argc
, const char **argv
)
10773 fatal_error (input_location
,
10774 "wrong number of arguments to %%:dwarf-version-gt");
10776 long arg
= strtol (argv
[0], &converted
, 10);
10777 gcc_assert (converted
!= argv
[0]);
10779 if (dwarf_version
> arg
)
10786 path_prefix_reset (path_prefix
*prefix
)
10788 struct prefix_list
*iter
, *next
;
10789 iter
= prefix
->plist
;
10793 free (const_cast <char *> (iter
->prefix
));
10798 prefix
->max_len
= 0;
10801 /* The function takes 3 arguments: OPTION name, file name and location
10802 where we search for Fortran modules.
10803 When the FILE is found by find_file, return OPTION=path_to_file. */
10805 static const char *
10806 find_fortran_preinclude_file (int argc
, const char **argv
)
10808 char *result
= NULL
;
10812 struct path_prefix prefixes
= { 0, 0, "preinclude" };
10814 /* Search first for 'finclude' folder location for a header file
10815 installed by the compiler (similar to omp_lib.h). */
10816 add_prefix (&prefixes
, argv
[2], NULL
, 0, 0, 0);
10817 #ifdef TOOL_INCLUDE_DIR
10818 /* Then search: <prefix>/<target>/<include>/finclude */
10819 add_prefix (&prefixes
, TOOL_INCLUDE_DIR
"/finclude/",
10822 #ifdef NATIVE_SYSTEM_HEADER_DIR
10823 /* Then search: <sysroot>/usr/include/finclude/<multilib> */
10824 add_sysrooted_hdrs_prefix (&prefixes
, NATIVE_SYSTEM_HEADER_DIR
"/finclude/",
10828 const char *path
= find_a_file (&include_prefixes
, argv
[1], R_OK
, false);
10830 result
= concat (argv
[0], path
, NULL
);
10833 path
= find_a_file (&prefixes
, argv
[1], R_OK
, false);
10835 result
= concat (argv
[0], path
, NULL
);
10838 path_prefix_reset (&prefixes
);
10842 /* If any character in ORIG fits QUOTE_P (_, P), reallocate the string
10843 so as to precede every one of them with a backslash. Return the
10844 original string or the reallocated one. */
10846 static inline char *
10847 quote_string (char *orig
, bool (*quote_p
)(char, void *), void *p
)
10849 int len
, number_of_space
= 0;
10851 for (len
= 0; orig
[len
]; len
++)
10852 if (quote_p (orig
[len
], p
))
10855 if (number_of_space
)
10857 char *new_spec
= (char *) xmalloc (len
+ number_of_space
+ 1);
10859 for (j
= 0, k
= 0; j
<= len
; j
++, k
++)
10861 if (quote_p (orig
[j
], p
))
10862 new_spec
[k
++] = '\\';
10863 new_spec
[k
] = orig
[j
];
10872 /* Return true iff C is any of the characters convert_white_space
10876 whitespace_to_convert_p (char c
, void *)
10878 return (c
== ' ' || c
== '\t');
10881 /* Insert backslash before spaces in ORIG (usually a file path), to
10882 avoid being broken by spec parser.
10884 This function is needed as do_spec_1 treats white space (' ' and '\t')
10885 as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
10886 the file name should be treated as a single argument rather than being
10887 broken into multiple. Solution is to insert '\\' before the space in a
10890 This function converts and only converts all occurrence of ' '
10891 to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
10893 "a b" -> "a\\ \\ b"
10895 "a\\ b" -> "a\\\\ b"
10897 orig: input null-terminating string that was allocated by xalloc. The
10898 memory it points to might be freed in this function. Behavior undefined
10899 if ORIG wasn't xalloced or was freed already at entry.
10901 Return: ORIG if no conversion needed. Otherwise a newly allocated string
10902 that was converted from ORIG. */
10905 convert_white_space (char *orig
)
10907 return quote_string (orig
, whitespace_to_convert_p
, NULL
);
10910 /* Return true iff C matches any of the spec active characters. */
10912 quote_spec_char_p (char c
, void *)
10929 /* Like convert_white_space, but deactivate all active spec chars by
10932 static inline char *
10933 quote_spec (char *orig
)
10935 return quote_string (orig
, quote_spec_char_p
, NULL
);
10938 /* Like quote_spec, but also turn an empty string into the spec for an
10941 static inline char *
10942 quote_spec_arg (char *orig
)
10947 return xstrdup ("%\"");
10950 return quote_spec (orig
);
10953 /* Restore all state within gcc.c to the initial state, so that the driver
10954 code can be safely re-run in-process.
10956 Many const char * variables are referenced by static specs (see
10957 INIT_STATIC_SPEC above). These variables are restored to their default
10958 values by a simple loop over the static specs.
10960 For other variables, we directly restore them all to their initial
10961 values (often implicitly 0).
10963 Free the various obstacks in this file, along with "opts_obstack"
10966 This function also restores any environment variables that were changed. */
10969 driver::finalize ()
10972 diagnostic_finish (global_dc
);
10975 at_file_supplied
= 0;
10976 print_help_list
= 0;
10978 verbose_only_flag
= 0;
10979 print_subprocess_help
= 0;
10981 report_times_to_file
= NULL
;
10982 target_system_root
= DEFAULT_TARGET_SYSTEM_ROOT
;
10983 target_system_root_changed
= 0;
10984 target_sysroot_suffix
= 0;
10985 target_sysroot_hdrs_suffix
= 0;
10986 save_temps_flag
= SAVE_TEMPS_NONE
;
10987 save_temps_overrides_dumpdir
= false;
10988 dumpdir_trailing_dash_added
= false;
10991 free (dumpbase_ext
);
10993 dumpdir
= dumpbase
= dumpbase_ext
= outbase
= NULL
;
10994 dumpdir_length
= outbase_length
= 0;
10995 spec_machine
= DEFAULT_TARGET_MACHINE
;
10996 greatest_status
= 1;
10998 obstack_free (&obstack
, NULL
);
10999 obstack_free (&opts_obstack
, NULL
); /* in opts.c */
11000 obstack_free (&collect_obstack
, NULL
);
11002 link_command_spec
= LINK_COMMAND_SPEC
;
11004 obstack_free (&multilib_obstack
, NULL
);
11006 user_specs_head
= NULL
;
11007 user_specs_tail
= NULL
;
11009 /* Within the "compilers" vec, the fields "suffix" and "spec" were
11010 statically allocated for the default compilers, but dynamically
11011 allocated for additional compilers. Delete them for the latter. */
11012 for (int i
= n_default_compilers
; i
< n_compilers
; i
++)
11014 free (const_cast <char *> (compilers
[i
].suffix
));
11015 free (const_cast <char *> (compilers
[i
].spec
));
11017 XDELETEVEC (compilers
);
11021 linker_options
.truncate (0);
11022 assembler_options
.truncate (0);
11023 preprocessor_options
.truncate (0);
11025 path_prefix_reset (&exec_prefixes
);
11026 path_prefix_reset (&startfile_prefixes
);
11027 path_prefix_reset (&include_prefixes
);
11029 machine_suffix
= 0;
11030 just_machine_suffix
= 0;
11031 gcc_exec_prefix
= 0;
11032 gcc_libexec_prefix
= 0;
11033 set_static_spec_shared (&md_exec_prefix
, MD_EXEC_PREFIX
);
11034 set_static_spec_shared (&md_startfile_prefix
, MD_STARTFILE_PREFIX
);
11035 set_static_spec_shared (&md_startfile_prefix_1
, MD_STARTFILE_PREFIX_1
);
11037 multilib_os_dir
= 0;
11040 /* Free any specs dynamically-allocated by set_spec.
11041 These will be at the head of the list, before the
11042 statically-allocated ones. */
11045 while (specs
!= static_specs
)
11047 spec_list
*next
= specs
->next
;
11048 free (const_cast <char *> (specs
->name
));
11054 for (unsigned i
= 0; i
< ARRAY_SIZE (static_specs
); i
++)
11056 spec_list
*sl
= &static_specs
[i
];
11059 free (const_cast <char *> (*(sl
->ptr_spec
)));
11060 sl
->alloc_p
= false;
11062 *(sl
->ptr_spec
) = sl
->default_ptr
;
11065 extra_specs
= NULL
;
11068 processing_spec_function
= 0;
11076 execution_count
= 0;
11079 temp_filename
= NULL
;
11080 temp_filename_length
= 0;
11081 always_delete_queue
= NULL
;
11082 failure_delete_queue
= NULL
;
11084 XDELETEVEC (switches
);
11087 n_switches_alloc
= 0;
11090 compare_debug_second
= 0;
11091 compare_debug_opt
= NULL
;
11092 for (int i
= 0; i
< 2; i
++)
11094 switches_debug_check
[i
] = NULL
;
11095 n_switches_debug_check
[i
] = 0;
11096 n_switches_alloc_debug_check
[i
] = 0;
11097 debug_check_temp_file
[i
] = NULL
;
11100 XDELETEVEC (infiles
);
11103 n_infiles_alloc
= 0;
11105 combine_inputs
= false;
11106 added_libraries
= 0;
11107 XDELETEVEC (outfiles
);
11110 last_language_n_infiles
= 0;
11111 gcc_input_filename
= NULL
;
11112 input_file_number
= 0;
11113 input_filename_length
= 0;
11114 basename_length
= 0;
11115 suffixed_basename_length
= 0;
11116 input_basename
= NULL
;
11117 input_suffix
= NULL
;
11118 /* We don't need to purge "input_stat", just to unset "input_stat_set". */
11119 input_stat_set
= 0;
11120 input_file_compiler
= NULL
;
11122 delete_this_arg
= 0;
11123 this_is_output_file
= 0;
11124 this_is_library_file
= 0;
11125 this_is_linker_script
= 0;
11126 input_from_pipe
= 0;
11127 suffix_subst
= NULL
;
11132 used_arg
.finalize ();
11136 Targets can provide configure-time default options in
11137 OPTION_DEFAULT_SPECS. The jit needs to access these, but
11138 they are expressed in the spec language.
11140 Run just enough of the driver to be able to expand these
11141 specs, and then call the callback CB on each
11142 such option. The options strings are *without* a leading
11143 '-' character e.g. ("march=x86-64"). Finally, clean up. */
11146 driver_get_configure_time_options (void (*cb
) (const char *option
,
11152 obstack_init (&obstack
);
11153 init_opts_obstack ();
11156 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
11157 do_option_spec (option_default_specs
[i
].name
,
11158 option_default_specs
[i
].spec
);
11160 for (i
= 0; (int) i
< n_switches
; i
++)
11162 gcc_assert (switches
[i
].part1
);
11163 (*cb
) (switches
[i
].part1
, user_data
);
11166 obstack_free (&opts_obstack
, NULL
);
11167 obstack_free (&obstack
, NULL
);