1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
5 Free Software Foundation, Inc.
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free
11 Software Foundation; either version 3, or (at your option) any later
14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
23 /* This program is the user interface to the C compiler and possibly to
24 other compilers. It is used because compilation is a complicated procedure
25 which involves running several programs and passing temporary files between
26 them, forwarding the users switches to those programs selectively,
27 and deleting the temporary files at the end.
29 CC recognizes how to compile each input file by suffixes in the file names.
30 Once it knows which kind of compilation to perform, the procedure for
31 compilation is specified by a string called a "spec". */
33 /* A Short Introduction to Adding a Command-Line Option.
35 Before adding a command-line option, consider if it is really
36 necessary. Each additional command-line option adds complexity and
37 is difficult to remove in subsequent versions.
39 In the following, consider adding the command-line argument
42 1. Each command-line option is specified in the specs file. The
43 notation is described below in the comment entitled "The Specs
46 2. In this file, add an entry to "option_map" equating the long
47 `--' argument version and any shorter, single letter version. Read
48 the comments in the declaration of "struct option_map" for an
49 explanation. Do not omit the first `-'.
51 3. Look in the "specs" file to determine which program or option
52 list should be given the argument, e.g., "cc1_options". Add the
53 appropriate syntax for the shorter option version to the
54 corresponding "const char *" entry in this file. Omit the first
55 `-' from the option. For example, use `-bar', rather than `--bar'.
57 4. If the argument takes an argument, e.g., `--baz argument1',
58 modify either DEFAULT_SWITCH_TAKES_ARG or
59 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
62 5. Document the option in this file's display_help(). If the
63 option is passed to a subprogram, modify its corresponding
64 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
67 6. Compile and test. Make sure that your new specs file is being
68 read. For example, use a debugger to investigate the value of
69 "specs_file" in main(). */
73 #include "coretypes.h"
74 #include "multilib.h" /* before tm.h */
77 #if ! defined( SIGCHLD ) && defined( SIGCLD )
78 # define SIGCHLD SIGCLD
89 # include <sys/mman.h>
91 /* This is on Solaris. */
92 # include <sys/types.h>
97 # define MAP_FAILED ((void *)-1)
100 /* By default there is no special suffix for target executables. */
101 /* FIXME: when autoconf is fixed, remove the host check - dj */
102 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
103 #define HAVE_TARGET_EXECUTABLE_SUFFIX
106 /* By default there is no special suffix for host executables. */
107 #ifdef HOST_EXECUTABLE_SUFFIX
108 #define HAVE_HOST_EXECUTABLE_SUFFIX
110 #define HOST_EXECUTABLE_SUFFIX ""
113 /* By default, the suffix for target object files is ".o". */
114 #ifdef TARGET_OBJECT_SUFFIX
115 #define HAVE_TARGET_OBJECT_SUFFIX
117 #define TARGET_OBJECT_SUFFIX ".o"
120 static const char dir_separator_str[] = { DIR_SEPARATOR, 0 };
122 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
123 #ifndef LIBRARY_PATH_ENV
124 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
128 #define kill(p,s) raise(s)
131 /* If a stage of compilation returns an exit status >= 1,
132 compilation of that file ceases. */
134 #define MIN_FATAL_STATUS 1
136 /* Flag set by cppspec.c to 1. */
139 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
140 static bool at_file_supplied;
142 /* Flag saying to pass the greatest exit code returned by a sub-process
143 to the calling program. */
144 static int pass_exit_codes;
146 /* Definition of string containing the arguments given to configure. */
147 #include "configargs.h"
149 /* Flag saying to print the directories gcc will search through looking for
150 programs, libraries, etc. */
152 static int print_search_dirs;
154 /* Flag saying to print the full filename of this file
155 as found through our usual search mechanism. */
157 static const char *print_file_name = NULL;
159 /* As print_file_name, but search for executable file. */
161 static const char *print_prog_name = NULL;
163 /* Flag saying to print the relative path we'd use to
164 find libgcc.a given the current compiler flags. */
166 static int print_multi_directory;
168 static int print_sysroot;
170 /* Flag saying to print the relative path we'd use to
171 find OS libraries given the current compiler flags. */
173 static int print_multi_os_directory;
175 /* Flag saying to print the list of subdirectories and
176 compiler flags used to select them in a standard form. */
178 static int print_multi_lib;
180 /* Flag saying to print the command line options understood by gcc and its
183 static int print_help_list;
185 /* Flag saying to print the version of gcc and its sub-processes. */
187 static int print_version;
189 /* Flag saying to print the sysroot suffix used for searching for
192 static int print_sysroot_headers_suffix;
194 /* Flag indicating whether we should print the command and arguments */
196 static int verbose_flag;
198 /* Flag indicating whether we should ONLY print the command and
199 arguments (like verbose_flag) without executing the command.
200 Displayed arguments are quoted so that the generated command
201 line is suitable for execution. This is intended for use in
202 shell scripts to capture the driver-generated command line. */
203 static int verbose_only_flag;
205 /* Flag indicating how to print command line options of sub-processes. */
207 static int print_subprocess_help;
209 /* Flag indicating whether we should report subprocess execution times
210 (if this is supported by the system - see pexecute.c). */
212 static int report_times;
214 /* Whether we should report subprocess execution times to a file. */
216 FILE *report_times_to_file = NULL;
218 /* Nonzero means place this string before uses of /, so that include
219 and library files can be found in an alternate location. */
221 #ifdef TARGET_SYSTEM_ROOT
222 static const char *target_system_root = TARGET_SYSTEM_ROOT;
224 static const char *target_system_root = 0;
227 /* Nonzero means pass the updated target_system_root to the compiler. */
229 static int target_system_root_changed;
231 /* Nonzero means append this string to target_system_root. */
233 static const char *target_sysroot_suffix = 0;
235 /* Nonzero means append this string to target_system_root for headers. */
237 static const char *target_sysroot_hdrs_suffix = 0;
239 /* Nonzero means write "temp" files in source directory
240 and use the source file's name in them, and don't delete them. */
242 static enum save_temps {
243 SAVE_TEMPS_NONE, /* no -save-temps */
244 SAVE_TEMPS_CWD, /* -save-temps in current directory */
245 SAVE_TEMPS_OBJ /* -save-temps in object directory */
248 /* Output file to use to get the object directory for -save-temps=obj */
249 static char *save_temps_prefix = 0;
250 static size_t save_temps_length = 0;
252 /* Nonzero means pass multiple source files to the compiler at one time. */
254 static int combine_flag = 0;
256 /* Nonzero means use pipes to communicate between subprocesses.
257 Overridden by either of the above two flags. */
259 static int use_pipes;
261 /* The compiler version. */
263 static const char *compiler_version;
265 /* The target version specified with -V */
267 static const char *const spec_version = DEFAULT_TARGET_VERSION;
269 /* The target machine specified with -b. */
271 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
273 /* Nonzero if cross-compiling.
274 When -b is used, the value comes from the `specs' file. */
276 #ifdef CROSS_DIRECTORY_STRUCTURE
277 static const char *cross_compile = "1";
279 static const char *cross_compile = "0";
282 #ifdef MODIFY_TARGET_NAME
284 /* Information on how to alter the target name based on a command-line
285 switch. The only case we support now is simply appending or deleting a
286 string to or from the end of the first part of the configuration name. */
288 enum add_del {ADD, DELETE};
290 static const struct modify_target
292 const char *const sw;
293 const enum add_del add_del;
294 const char *const str;
296 modify_target[] = MODIFY_TARGET_NAME;
299 /* The number of errors that have occurred; the link phase will not be
300 run if this is nonzero. */
301 static int error_count = 0;
303 /* Greatest exit code of sub-processes that has been encountered up to
305 static int greatest_status = 1;
307 /* This is the obstack which we use to allocate many strings. */
309 static struct obstack obstack;
311 /* This is the obstack to build an environment variable to pass to
312 collect2 that describes all of the relevant switches of what to
313 pass the compiler in building the list of pointers to constructors
316 static struct obstack collect_obstack;
318 /* This is a list of a wrapper program and its arguments.
319 e.g. wrapper_string of "strace,-c"
320 will cause all programs to run as
321 strace -c program arguments
324 static const char *wrapper_string;
326 /* Forward declaration for prototypes. */
330 static void init_spec (void);
331 static void store_arg (const char *, int, int);
332 static void insert_wrapper (const char *);
333 static char *load_specs (const char *);
334 static void read_specs (const char *, int);
335 static void set_spec (const char *, const char *);
336 static struct compiler *lookup_compiler (const char *, size_t, const char *);
337 static char *build_search_list (const struct path_prefix *, const char *,
339 static void xputenv (const char *);
340 static void putenv_from_prefixes (const struct path_prefix *, const char *,
342 static int access_check (const char *, int);
343 static char *find_a_file (const struct path_prefix *, const char *, int, bool);
344 static void add_prefix (struct path_prefix *, const char *, const char *,
346 static void add_sysrooted_prefix (struct path_prefix *, const char *,
347 const char *, int, int, int);
348 static void translate_options (int *, const char *const **);
349 static char *skip_whitespace (char *);
350 static void delete_if_ordinary (const char *);
351 static void delete_temp_files (void);
352 static void delete_failure_queue (void);
353 static void clear_failure_queue (void);
354 static int check_live_switch (int, int);
355 static const char *handle_braces (const char *);
356 static inline bool input_suffix_matches (const char *, const char *);
357 static inline bool switch_matches (const char *, const char *, int);
358 static inline void mark_matching_switches (const char *, const char *, int);
359 static inline void process_marked_switches (void);
360 static const char *process_brace_body (const char *, const char *, const char *, int, int);
361 static const struct spec_function *lookup_spec_function (const char *);
362 static const char *eval_spec_function (const char *, const char *);
363 static const char *handle_spec_function (const char *);
364 static char *save_string (const char *, int);
365 static void set_collect_gcc_options (void);
366 static int do_spec_1 (const char *, int, const char *);
367 static int do_spec_2 (const char *);
368 static void do_option_spec (const char *, const char *);
369 static void do_self_spec (const char *);
370 static const char *find_file (const char *);
371 static int is_directory (const char *, bool);
372 static const char *validate_switches (const char *);
373 static void validate_all_switches (void);
374 static inline void validate_switches_from_spec (const char *);
375 static void give_switch (int, int);
376 static int used_arg (const char *, int);
377 static int default_arg (const char *, int);
378 static void set_multilib_dir (void);
379 static void print_multilib_info (void);
380 static void perror_with_name (const char *);
381 static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
382 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1;
383 static void display_help (void);
384 static void add_preprocessor_option (const char *, int);
385 static void add_assembler_option (const char *, int);
386 static void add_linker_option (const char *, int);
387 static void process_command (int, const char **);
388 static int execute (void);
389 static void alloc_args (void);
390 static void clear_args (void);
391 static void fatal_error (int);
392 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
393 static void init_gcc_specs (struct obstack *, const char *, const char *,
396 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
397 static const char *convert_filename (const char *, int, int);
400 static const char *getenv_spec_function (int, const char **);
401 static const char *if_exists_spec_function (int, const char **);
402 static const char *if_exists_else_spec_function (int, const char **);
403 static const char *replace_outfile_spec_function (int, const char **);
404 static const char *version_compare_spec_function (int, const char **);
405 static const char *include_spec_function (int, const char **);
406 static const char *print_asm_header_spec_function (int, const char **);
407 static const char *compare_debug_dump_opt_spec_function (int, const char **);
408 static const char *compare_debug_self_opt_spec_function (int, const char **);
409 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
411 /* The Specs Language
413 Specs are strings containing lines, each of which (if not blank)
414 is made up of a program name, and arguments separated by spaces.
415 The program name must be exact and start from root, since no path
416 is searched and it is unreliable to depend on the current working directory.
417 Redirection of input or output is not supported; the subprograms must
418 accept filenames saying what files to read and write.
420 In addition, the specs can contain %-sequences to substitute variable text
421 or for conditional text. Here is a table of all defined %-sequences.
422 Note that spaces are not generated automatically around the results of
423 expanding these sequences; therefore, you can concatenate them together
424 or with constant text in a single argument.
426 %% substitute one % into the program name or argument.
427 %i substitute the name of the input file being processed.
428 %b substitute the basename of the input file being processed.
429 This is the substring up to (and not including) the last period
430 and not including the directory unless -save-temps was specified
431 to put temporaries in a different location.
432 %B same as %b, but include the file suffix (text after the last period).
434 substitute a file name that has suffix SUFFIX and is chosen
435 once per compilation, and mark the argument a la %d. To reduce
436 exposure to denial-of-service attacks, the file name is now
437 chosen in a way that is hard to predict even when previously
438 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
439 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
440 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
441 had been pre-processed. Previously, %g was simply substituted
442 with a file name chosen once per compilation, without regard
443 to any appended suffix (which was therefore treated just like
444 ordinary text), making such attacks more likely to succeed.
446 like %g, but if -pipe is in effect, expands simply to "-".
448 like %g, but if -pipe is in effect, expands to nothing. (We have both
449 %| and %m to accommodate differences between system assemblers; see
450 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
452 like %g, but generates a new temporary file name even if %uSUFFIX
455 substitutes the last file name generated with %uSUFFIX, generating a
456 new one if there is no such last file name. In the absence of any
457 %uSUFFIX, this is just like %gSUFFIX, except they don't share
458 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
459 would involve the generation of two distinct file names, one
460 for each `%g.s' and another for each `%U.s'. Previously, %U was
461 simply substituted with a file name chosen for the previous %u,
462 without regard to any appended suffix.
464 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
465 writable, and if save-temps is off; otherwise, substitute the name
466 of a temporary file, just like %u. This temporary file is not
467 meant for communication between processes, but rather as a junk
470 substitutes .SUFFIX for the suffixes of a matched switch's args when
471 it is subsequently output with %*. SUFFIX is terminated by the next
473 %d marks the argument containing or following the %d as a
474 temporary file name, so that that file will be deleted if GCC exits
475 successfully. Unlike %g, this contributes no text to the argument.
476 %w marks the argument containing or following the %w as the
477 "output file" of this compilation. This puts the argument
478 into the sequence of arguments that %o will substitute later.
479 %V indicates that this compilation produces no "output file".
481 like %{...} but mark last argument supplied within
482 as a file to be deleted on failure.
483 %o substitutes the names of all the output files, with spaces
484 automatically placed around them. You should write spaces
485 around the %o as well or the results are undefined.
486 %o is for use in the specs for running the linker.
487 Input files whose names have no recognized suffix are not compiled
488 at all, but they are included among the output files, so they will
490 %O substitutes the suffix for object files. Note that this is
491 handled specially when it immediately follows %g, %u, or %U
492 (with or without a suffix argument) because of the need for
493 those to form complete file names. The handling is such that
494 %O is treated exactly as if it had already been substituted,
495 except that %g, %u, and %U do not currently support additional
496 SUFFIX characters following %O as they would following, for
498 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
499 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
500 and -B options) and -imultilib as necessary.
501 %s current argument is the name of a library or startup file of some sort.
502 Search for that file in a standard list of directories
503 and substitute the full name found.
504 %eSTR Print STR as an error message. STR is terminated by a newline.
505 Use this when inconsistent options are detected.
506 %nSTR Print STR as a notice. STR is terminated by a newline.
507 %x{OPTION} Accumulate an option for %X.
508 %X Output the accumulated linker options specified by compilations.
509 %Y Output the accumulated assembler options specified by compilations.
510 %Z Output the accumulated preprocessor options specified by compilations.
511 %a process ASM_SPEC as a spec.
512 This allows config.h to specify part of the spec for running as.
513 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
514 used here. This can be used to run a post-processor after the
515 assembler has done its job.
516 %D Dump out a -L option for each directory in startfile_prefixes.
517 If multilib_dir is set, extra entries are generated with it affixed.
518 %l process LINK_SPEC as a spec.
519 %L process LIB_SPEC as a spec.
520 %G process LIBGCC_SPEC as a spec.
521 %R Output the concatenation of target_system_root and
522 target_sysroot_suffix.
523 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
524 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
525 %C process CPP_SPEC as a spec.
526 %1 process CC1_SPEC as a spec.
527 %2 process CC1PLUS_SPEC as a spec.
528 %* substitute the variable part of a matched option. (See below.)
529 Note that each comma in the substituted string is replaced by
531 %<S remove all occurrences of -S from the command line.
532 Note - this command is position dependent. % commands in the
533 spec string before this one will see -S, % commands in the
534 spec string after this one will not.
535 %<S* remove all occurrences of all switches beginning with -S from the
538 Call the named function FUNCTION, passing it ARGS. ARGS is
539 first processed as a nested spec string, then split into an
540 argument vector in the usual fashion. The function returns
541 a string which is processed as if it had appeared literally
542 as part of the current spec.
543 %{S} substitutes the -S switch, if that switch was given to GCC.
544 If that switch was not specified, this substitutes nothing.
545 Here S is a metasyntactic variable.
546 %{S*} substitutes all the switches specified to GCC whose names start
547 with -S. This is used for -o, -I, etc; switches that take
548 arguments. GCC considers `-o foo' as being one switch whose
549 name starts with `o'. %{o*} would substitute this text,
550 including the space; thus, two arguments would be generated.
551 %{S*&T*} likewise, but preserve order of S and T options (the order
552 of S and T in the spec is not significant). Can be any number
553 of ampersand-separated variables; for each the wild card is
554 optional. Useful for CPP as %{D*&U*&A*}.
556 %{S:X} substitutes X, if the -S switch was given to GCC.
557 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
558 %{S*:X} substitutes X if one or more switches whose names start
559 with -S was given to GCC. Normally X is substituted only
560 once, no matter how many such switches appeared. However,
561 if %* appears somewhere in X, then X will be substituted
562 once for each matching switch, with the %* replaced by the
563 part of that switch that matched the '*'.
564 %{.S:X} substitutes X, if processing a file with suffix S.
565 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
566 %{,S:X} substitutes X, if processing a file which will use spec S.
567 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
569 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
570 combined with '!', '.', ',', and '*' as above binding stronger
572 If %* appears in X, all of the alternatives must be starred, and
573 only the first matching alternative is substituted.
574 %{S:X; if S was given to GCC, substitutes X;
575 T:Y; else if T was given to GCC, substitutes Y;
576 :D} else substitutes D. There can be as many clauses as you need.
577 This may be combined with '.', '!', ',', '|', and '*' as above.
579 %(Spec) processes a specification defined in a specs file as *Spec:
580 %[Spec] as above, but put __ around -D arguments
582 The conditional text X in a %{S:X} or similar construct may contain
583 other nested % constructs or spaces, or even newlines. They are
584 processed as usual, as described above. Trailing white space in X is
585 ignored. White space may also appear anywhere on the left side of the
586 colon in these constructs, except between . or * and the corresponding
589 The -O, -f, -m, and -W switches are handled specifically in these
590 constructs. If another value of -O or the negated form of a -f, -m, or
591 -W switch is found later in the command line, the earlier switch
592 value is ignored, except with {S*} where S is just one letter; this
593 passes all matching options.
595 The character | at the beginning of the predicate text is used to indicate
596 that a command should be piped to the following command, but only if -pipe
599 Note that it is built into GCC which switches take arguments and which
600 do not. You might think it would be useful to generalize this to
601 allow each compiler's spec to say which switches take arguments. But
602 this cannot be done in a consistent fashion. GCC cannot even decide
603 which input files have been specified without knowing which switches
604 take arguments, and it must know which input files to compile in order
605 to tell which compilers to run.
607 GCC also knows implicitly that arguments starting in `-l' are to be
608 treated as compiler output files, and passed to the linker in their
609 proper position among the other output files. */
611 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
613 /* config.h can define ASM_SPEC to provide extra args to the assembler
614 or extra switch-translations. */
619 /* config.h can define ASM_FINAL_SPEC to run a post processor after
620 the assembler has run. */
621 #ifndef ASM_FINAL_SPEC
622 #define ASM_FINAL_SPEC ""
625 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
626 or extra switch-translations. */
631 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
632 or extra switch-translations. */
637 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
638 or extra switch-translations. */
640 #define CC1PLUS_SPEC ""
643 /* config.h can define LINK_SPEC to provide extra args to the linker
644 or extra switch-translations. */
649 /* config.h can define LIB_SPEC to override the default libraries. */
651 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
656 /* XXX: valid only for GNU ld */
657 /* XXX: should exactly match hooks provided by libmudflap.a */
658 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
659 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
660 --wrap=mmap --wrap=munmap --wrap=alloca\
661 } %{fmudflapth: --wrap=pthread_create\
662 }} %{fmudflap|fmudflapth: --wrap=main}"
665 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
668 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
671 #if defined(REAL_LIBGCC_SPEC)
672 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
673 #elif defined(LINK_LIBGCC_SPECIAL_1)
674 /* Have gcc do the search for libgcc.a. */
675 #define LIBGCC_SPEC "libgcc.a%s"
677 #define LIBGCC_SPEC "-lgcc"
681 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
682 #ifndef STARTFILE_SPEC
683 #define STARTFILE_SPEC \
684 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
687 /* config.h can define SWITCHES_NEED_SPACES to control which options
688 require spaces between the option and the argument.
690 We define SWITCHES_NEED_SPACES to include "o" by default. This
691 causes "-ofoo.o" to be split into "-o foo.o" during the initial
692 processing of the command-line, before being seen by the specs
693 machinery. This makes sure we record "foo.o" as the temporary file
694 to be deleted in the case of error, rather than "-ofoo.o". */
695 #ifndef SWITCHES_NEED_SPACES
696 #define SWITCHES_NEED_SPACES "o"
699 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
701 #define ENDFILE_SPEC ""
705 #define LINKER_NAME "collect2"
708 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
709 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
714 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
716 #ifndef ASM_DEBUG_SPEC
717 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
718 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
719 # define ASM_DEBUG_SPEC \
720 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
721 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
722 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
724 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
725 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
727 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
728 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
732 #ifndef ASM_DEBUG_SPEC
733 # define ASM_DEBUG_SPEC ""
736 /* Here is the spec for running the linker, after compiling all files. */
738 /* This is overridable by the target in case they need to specify the
739 -lgcc and -lc order specially, yet not require them to override all
740 of LINK_COMMAND_SPEC. */
741 #ifndef LINK_GCC_C_SEQUENCE_SPEC
742 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
745 #ifndef LINK_SSP_SPEC
746 #ifdef TARGET_LIBC_PROVIDES_SSP
747 #define LINK_SSP_SPEC "%{fstack-protector:}"
749 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
753 #ifndef LINK_PIE_SPEC
755 #define LINK_PIE_SPEC "%{pie:-pie} "
757 #define LINK_PIE_SPEC "%{pie:} "
761 #ifndef LINK_BUILDID_SPEC
762 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
763 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
768 /* -u* was put back because both BSD and SysV seem to support it. */
769 /* %{static:} simply prevents an error message if the target machine
770 doesn't handle -static. */
771 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
772 scripts which exist in user specified directories, or in standard
774 /* We pass any -flto and -fwhopr flags on to the linker, which is expected
775 to understand them. In practice, this means it had better be collect2. */
776 #ifndef LINK_COMMAND_SPEC
777 #define LINK_COMMAND_SPEC "\
778 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
780 %{fuse-linker-plugin: \
781 -plugin %(linker_plugin_file) \
782 -plugin-opt=%(lto_wrapper) \
783 -plugin-opt=%(lto_gcc) \
784 %{static|static-libgcc:-plugin-opt=-pass-through=%(lto_libgcc)} \
785 %{static:-plugin-opt=-pass-through=-lc} \
786 %{O*:-plugin-opt=-O%*} \
787 %{w:-plugin-opt=-w} \
788 %{f*:-plugin-opt=-f%*} \
789 %{m*:-plugin-opt=-m%*} \
790 %{v:-plugin-opt=-v} \
792 %{flto} %{fwhopr} %l " LINK_PIE_SPEC \
793 "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
794 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
795 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
796 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
797 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
798 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
799 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
802 #ifndef LINK_LIBGCC_SPEC
803 /* Generate -L options for startfile prefix list. */
804 # define LINK_LIBGCC_SPEC "%D"
807 #ifndef STARTFILE_PREFIX_SPEC
808 # define STARTFILE_PREFIX_SPEC ""
812 # define SYSROOT_SPEC "--sysroot=%R"
815 #ifndef SYSROOT_SUFFIX_SPEC
816 # define SYSROOT_SUFFIX_SPEC ""
819 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
820 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
823 static const char *asm_debug;
824 static const char *cpp_spec = CPP_SPEC;
825 static const char *cc1_spec = CC1_SPEC;
826 static const char *cc1plus_spec = CC1PLUS_SPEC;
827 static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
828 static const char *link_ssp_spec = LINK_SSP_SPEC;
829 static const char *asm_spec = ASM_SPEC;
830 static const char *asm_final_spec = ASM_FINAL_SPEC;
831 static const char *link_spec = LINK_SPEC;
832 static const char *lib_spec = LIB_SPEC;
833 static const char *mfwrap_spec = MFWRAP_SPEC;
834 static const char *mflib_spec = MFLIB_SPEC;
835 static const char *link_gomp_spec = "";
836 static const char *libgcc_spec = LIBGCC_SPEC;
837 static const char *endfile_spec = ENDFILE_SPEC;
838 static const char *startfile_spec = STARTFILE_SPEC;
839 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
840 static const char *linker_name_spec = LINKER_NAME;
841 static const char *linker_plugin_file_spec = "";
842 static const char *lto_wrapper_spec = "";
843 static const char *lto_gcc_spec = "";
844 static const char *lto_libgcc_spec = "";
845 static const char *link_command_spec = LINK_COMMAND_SPEC;
846 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
847 static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
848 static const char *sysroot_spec = SYSROOT_SPEC;
849 static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
850 static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
852 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
853 There should be no need to override these in target dependent files,
854 but we need to copy them to the specs file so that newer versions
855 of the GCC driver can correctly drive older tool chains with the
856 appropriate -B options. */
858 /* When cpplib handles traditional preprocessing, get rid of this, and
859 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
860 that we default the front end language better. */
861 static const char *trad_capable_cpp =
862 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
864 /* We don't wrap .d files in %W{} since a missing .d file, and
865 therefore no dependency entry, confuses make into thinking a .o
866 file that happens to exist is up-to-date. */
867 static const char *cpp_unique_options =
868 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
869 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
870 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
871 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
872 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
873 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
874 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
875 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
876 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
877 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
880 /* This contains cpp options which are common with cc1_options and are passed
881 only when preprocessing only to avoid duplication. We pass the cc1 spec
882 options to the preprocessor so that it the cc1 spec may manipulate
883 options used to set target flags. Those special target flags settings may
884 in turn cause preprocessor symbols to be defined specially. */
885 static const char *cpp_options =
886 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
887 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
888 %{undef} %{save-temps*:-fpch-preprocess}";
890 /* This contains cpp options which are not passed when the preprocessor
891 output will be used by another program. */
892 static const char *cpp_debug_options = "%{d*}";
894 /* NB: This is shared amongst all front-ends, except for Ada. */
895 static const char *cc1_options =
896 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
897 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{a*}\
898 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
899 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
900 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
901 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
902 %{Qn:-fno-ident} %{--help:--help}\
903 %{--target-help:--target-help}\
904 %{--help=*:--help=%(VALUE)}\
905 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
906 %{fsyntax-only:-o %j} %{-param*}\
907 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
908 %{coverage:-fprofile-arcs -ftest-coverage}";
910 static const char *asm_options =
911 "%{--target-help:%:print-asm-header()} "
913 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
914 to the assembler equivalents. */
915 "%{v} %{w:-W} %{I*} "
917 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
919 static const char *invoke_as =
920 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
922 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
923 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
927 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
928 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
932 /* Some compilers have limits on line lengths, and the multilib_select
933 and/or multilib_matches strings can be very long, so we build them at
935 static struct obstack multilib_obstack;
936 static const char *multilib_select;
937 static const char *multilib_matches;
938 static const char *multilib_defaults;
939 static const char *multilib_exclusions;
941 /* Check whether a particular argument is a default argument. */
943 #ifndef MULTILIB_DEFAULTS
944 #define MULTILIB_DEFAULTS { "" }
947 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
949 #ifndef DRIVER_SELF_SPECS
950 #define DRIVER_SELF_SPECS ""
953 /* Adding -fopenmp should imply pthreads. This is particularly important
954 for targets that use different start files and suchlike. */
955 #ifndef GOMP_SELF_SPECS
956 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
959 static const char *const driver_self_specs[] = {
960 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
961 DRIVER_SELF_SPECS, CONFIGURE_SPECS, GOMP_SELF_SPECS
964 #ifndef OPTION_DEFAULT_SPECS
965 #define OPTION_DEFAULT_SPECS { "", "" }
974 static const struct default_spec
975 option_default_specs[] = { OPTION_DEFAULT_SPECS };
979 struct user_specs *next;
980 const char *filename;
983 static struct user_specs *user_specs_head, *user_specs_tail;
985 #ifndef SWITCH_TAKES_ARG
986 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
989 #ifndef WORD_SWITCH_TAKES_ARG
990 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
993 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
994 /* This defines which switches stop a full compilation. */
995 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
996 ((CHAR) == 'c' || (CHAR) == 'S' || (CHAR) == 'E')
998 #ifndef SWITCH_CURTAILS_COMPILATION
999 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
1000 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
1004 /* Record the mapping from file suffixes for compilation specs. */
1008 const char *suffix; /* Use this compiler for input files
1009 whose names end in this suffix. */
1011 const char *spec; /* To use this compiler, run this spec. */
1013 const char *cpp_spec; /* If non-NULL, substitute this spec
1014 for `%C', rather than the usual
1016 const int combinable; /* If nonzero, compiler can deal with
1017 multiple source files at once (IMA). */
1018 const int needs_preprocessing; /* If nonzero, source files need to
1019 be run through a preprocessor. */
1022 /* Pointer to a vector of `struct compiler' that gives the spec for
1023 compiling a file, based on its suffix.
1024 A file that does not end in any of these suffixes will be passed
1025 unchanged to the loader and nothing else will be done to it.
1027 An entry containing two 0s is used to terminate the vector.
1029 If multiple entries match a file, the last matching one is used. */
1031 static struct compiler *compilers;
1033 /* Number of entries in `compilers', not counting the null terminator. */
1035 static int n_compilers;
1037 /* The default list of file name suffixes and their compilation specs. */
1039 static const struct compiler default_compilers[] =
1041 /* Add lists of suffixes of known languages here. If those languages
1042 were not present when we built the driver, we will hit these copies
1043 and be given a more meaningful error than "file not used since
1044 linking is not done". */
1045 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1046 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1047 {".mii", "#Objective-C++", 0, 0, 0},
1048 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1049 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1050 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1051 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1052 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1053 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1054 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1055 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1056 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1057 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1058 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1059 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1060 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1061 {".r", "#Ratfor", 0, 0, 0},
1062 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1063 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1064 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1065 /* Next come the entries for C. */
1066 {".c", "@c", 0, 1, 1},
1068 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1069 external preprocessor if -save-temps is given. */
1070 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1072 %{traditional|ftraditional:\
1073 %eGNU C no longer supports -traditional without -E}\
1075 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1076 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1077 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1079 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1080 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1081 %{!fsyntax-only:%(invoke_as)}} \
1083 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1084 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i}}\
1085 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1086 cc1 %(cpp_unique_options) %(cc1_options)}}\
1087 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1089 "%{!E:%e-E or -x required when input is from standard input}\
1090 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1091 {".h", "@c-header", 0, 0, 0},
1093 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1094 external preprocessor if -save-temps is given. */
1095 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1097 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1098 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1099 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1101 -o %g.s %{!o*:--output-pch=%i.gch}\
1102 %W{o*:--output-pch=%*}%V}\
1103 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1104 cc1 %(cpp_unique_options) %(cc1_options)\
1105 -o %g.s %{!o*:--output-pch=%i.gch}\
1106 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1107 {".i", "@cpp-output", 0, 1, 0},
1109 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1110 {".s", "@assembler", 0, 1, 0},
1112 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1113 {".sx", "@assembler-with-cpp", 0, 1, 0},
1114 {".S", "@assembler-with-cpp", 0, 1, 0},
1115 {"@assembler-with-cpp",
1116 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1117 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1118 %{E|M|MM:%(cpp_debug_options)}\
1119 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1120 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1122 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1123 %{E|M|MM:%(cpp_debug_options)}\
1124 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1125 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1130 /* Mark end of table. */
1134 /* Number of elements in default_compilers, not counting the terminator. */
1136 static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
1138 /* A vector of options to give to the linker.
1139 These options are accumulated by %x,
1140 and substituted into the linker command with %X. */
1141 static int n_linker_options;
1142 static char **linker_options;
1144 /* A vector of options to give to the assembler.
1145 These options are accumulated by -Wa,
1146 and substituted into the assembler command with %Y. */
1147 static int n_assembler_options;
1148 static char **assembler_options;
1150 /* A vector of options to give to the preprocessor.
1151 These options are accumulated by -Wp,
1152 and substituted into the preprocessor command with %Z. */
1153 static int n_preprocessor_options;
1154 static char **preprocessor_options;
1156 /* Define how to map long options into short ones. */
1158 /* This structure describes one mapping. */
1161 /* The long option's name. */
1162 const char *const name;
1163 /* The equivalent short option. */
1164 const char *const equivalent;
1165 /* Argument info. A string of flag chars; NULL equals no options.
1166 a => argument required.
1167 o => argument optional.
1168 j => join argument to equivalent, making one word.
1169 * => require other text after NAME as an argument. */
1170 const char *const arg_info;
1173 /* This is the table of mappings. Mappings are tried sequentially
1174 for each option encountered; the first one that matches, wins. */
1176 static const struct option_map option_map[] =
1178 {"--all-warnings", "-Wall", 0},
1179 {"--ansi", "-ansi", 0},
1180 {"--assemble", "-S", 0},
1181 {"--assert", "-A", "a"},
1182 {"--classpath", "-fclasspath=", "aj"},
1183 {"--bootclasspath", "-fbootclasspath=", "aj"},
1184 {"--CLASSPATH", "-fclasspath=", "aj"},
1185 {"--combine", "-combine", 0},
1186 {"--comments", "-C", 0},
1187 {"--comments-in-macros", "-CC", 0},
1188 {"--compile", "-c", 0},
1189 {"--debug", "-g", "oj"},
1190 {"--define-macro", "-D", "aj"},
1191 {"--dependencies", "-M", 0},
1192 {"--dump", "-d", "a"},
1193 {"--dumpbase", "-dumpbase", "a"},
1194 {"--dumpdir", "-dumpdir", "a"},
1195 {"--encoding", "-fencoding=", "aj"},
1196 {"--entry", "-e", 0},
1197 {"--extra-warnings", "-W", 0},
1198 {"--extdirs", "-fextdirs=", "aj"},
1199 {"--for-assembler", "-Wa", "a"},
1200 {"--for-linker", "-Xlinker", "a"},
1201 {"--force-link", "-u", "a"},
1202 {"--coverage", "-coverage", 0},
1203 {"--imacros", "-imacros", "a"},
1204 {"--include", "-include", "a"},
1205 {"--include-barrier", "-I-", 0},
1206 {"--include-directory", "-I", "aj"},
1207 {"--include-directory-after", "-idirafter", "a"},
1208 {"--include-prefix", "-iprefix", "a"},
1209 {"--include-with-prefix", "-iwithprefix", "a"},
1210 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1211 {"--include-with-prefix-after", "-iwithprefix", "a"},
1212 {"--language", "-x", "a"},
1213 {"--library-directory", "-L", "a"},
1214 {"--machine", "-m", "aj"},
1215 {"--machine-", "-m", "*j"},
1216 {"--no-canonical-prefixes", "-no-canonical-prefixes", 0},
1217 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1218 {"--no-line-commands", "-P", 0},
1219 {"--no-precompiled-includes", "-noprecomp", 0},
1220 {"--no-standard-includes", "-nostdinc", 0},
1221 {"--no-standard-libraries", "-nostdlib", 0},
1222 {"--no-warnings", "-w", 0},
1223 {"--optimize", "-O", "oj"},
1224 {"--output", "-o", "a"},
1225 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1226 {"--param", "--param", "a"},
1227 {"--pass-exit-codes", "-pass-exit-codes", 0},
1228 {"--pedantic", "-pedantic", 0},
1229 {"--pedantic-errors", "-pedantic-errors", 0},
1230 {"--pie", "-pie", 0},
1231 {"--pipe", "-pipe", 0},
1232 {"--prefix", "-B", "a"},
1233 {"--preprocess", "-E", 0},
1234 {"--print-search-dirs", "-print-search-dirs", 0},
1235 {"--print-file-name", "-print-file-name=", "aj"},
1236 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1237 {"--print-missing-file-dependencies", "-MG", 0},
1238 {"--print-multi-lib", "-print-multi-lib", 0},
1239 {"--print-multi-directory", "-print-multi-directory", 0},
1240 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1241 {"--print-prog-name", "-print-prog-name=", "aj"},
1242 {"--print-sysroot", "-print-sysroot", 0},
1243 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1244 {"--profile", "-p", 0},
1245 {"--profile-blocks", "-a", 0},
1246 {"--quiet", "-q", 0},
1247 {"--resource", "-fcompile-resource=", "aj"},
1248 {"--save-temps", "-save-temps", 0},
1249 {"--shared", "-shared", 0},
1250 {"--silent", "-q", 0},
1251 {"--specs", "-specs=", "aj"},
1252 {"--static", "-static", 0},
1253 {"--std", "-std=", "aj"},
1254 {"--symbolic", "-symbolic", 0},
1255 {"--sysroot", "--sysroot=", "aj"},
1256 {"--time", "-time", 0},
1257 {"--trace-includes", "-H", 0},
1258 {"--traditional", "-traditional", 0},
1259 {"--traditional-cpp", "-traditional-cpp", 0},
1260 {"--trigraphs", "-trigraphs", 0},
1261 {"--undefine-macro", "-U", "aj"},
1262 {"--user-dependencies", "-MM", 0},
1263 {"--verbose", "-v", 0},
1264 {"--warn-", "-W", "*j"},
1265 {"--write-dependencies", "-MD", 0},
1266 {"--write-user-dependencies", "-MMD", 0},
1271 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1272 static const struct {
1273 const char *const option_found;
1274 const char *const replacements;
1275 } target_option_translations[] =
1277 TARGET_OPTION_TRANSLATE_TABLE,
1282 /* Translate the options described by *ARGCP and *ARGVP.
1283 Make a new vector and store it back in *ARGVP,
1284 and store its length in *ARGCP. */
1287 translate_options (int *argcp, const char *const **argvp)
1291 const char *const *argv = *argvp;
1292 int newvsize = (argc + 2) * 2 * sizeof (const char *);
1293 const char **newv = XNEWVAR (const char *, newvsize);
1297 newv[newindex++] = argv[i++];
1301 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1305 target_option_translations[tott_idx].option_found;
1308 if (strcmp (target_option_translations[tott_idx].option_found,
1315 for (sp = target_option_translations[tott_idx].replacements;
1322 newvsize += spaces * sizeof (const char *);
1323 newv = XRESIZEVAR (const char *, newv, newvsize);
1325 sp = target_option_translations[tott_idx].replacements;
1334 newv[newindex++] = np;
1335 while (*np != ' ' && *np)
1346 if (target_option_translations[tott_idx].option_found)
1350 /* Translate -- options. */
1351 if (argv[i][0] == '-' && argv[i][1] == '-')
1354 /* Find a mapping that applies to this option. */
1355 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1357 size_t optlen = strlen (option_map[j].name);
1358 size_t arglen = strlen (argv[i]);
1359 size_t complen = arglen > optlen ? optlen : arglen;
1360 const char *arginfo = option_map[j].arg_info;
1365 if (!strncmp (argv[i], option_map[j].name, complen))
1367 const char *arg = 0;
1369 if (arglen < optlen)
1372 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1373 if (strlen (option_map[k].name) >= arglen
1374 && !strncmp (argv[i], option_map[k].name, arglen))
1376 error ("ambiguous abbreviation %s", argv[i]);
1380 if (k != ARRAY_SIZE (option_map))
1384 if (arglen > optlen)
1386 /* If the option has an argument, accept that. */
1387 if (argv[i][optlen] == '=')
1388 arg = argv[i] + optlen + 1;
1390 /* If this mapping requires extra text at end of name,
1391 accept that as "argument". */
1392 else if (strchr (arginfo, '*') != 0)
1393 arg = argv[i] + optlen;
1395 /* Otherwise, extra text at end means mismatch.
1396 Try other mappings. */
1401 else if (strchr (arginfo, '*') != 0)
1403 error ("incomplete '%s' option", option_map[j].name);
1407 /* Handle arguments. */
1408 if (strchr (arginfo, 'a') != 0)
1414 error ("missing argument to '%s' option",
1415 option_map[j].name);
1422 else if (strchr (arginfo, '*') != 0)
1424 else if (strchr (arginfo, 'o') == 0)
1427 error ("extraneous argument to '%s' option",
1428 option_map[j].name);
1432 /* Store the translation as one argv elt or as two. */
1433 if (arg != 0 && strchr (arginfo, 'j') != 0)
1434 newv[newindex++] = concat (option_map[j].equivalent, arg,
1438 newv[newindex++] = option_map[j].equivalent;
1439 newv[newindex++] = arg;
1442 newv[newindex++] = option_map[j].equivalent;
1450 /* Handle old-fashioned options--just copy them through,
1451 with their arguments. */
1452 else if (argv[i][0] == '-')
1454 const char *p = argv[i] + 1;
1458 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1459 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1460 else if (WORD_SWITCH_TAKES_ARG (p))
1461 nskip += WORD_SWITCH_TAKES_ARG (p);
1462 else if ((c == 'B' || c == 'b' || c == 'x')
1465 else if (! strcmp (p, "Xlinker"))
1467 else if (! strcmp (p, "Xpreprocessor"))
1469 else if (! strcmp (p, "Xassembler"))
1472 /* Watch out for an option at the end of the command line that
1473 is missing arguments, and avoid skipping past the end of the
1475 if (nskip + i > argc)
1480 newv[newindex++] = argv[i++];
1485 /* Ordinary operands, or +e options. */
1486 newv[newindex++] = argv[i++];
1496 skip_whitespace (char *p)
1500 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1501 be considered whitespace. */
1502 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1504 else if (*p == '\n' || *p == ' ' || *p == '\t')
1518 /* Structures to keep track of prefixes to try when looking for files. */
1522 const char *prefix; /* String to prepend to the path. */
1523 struct prefix_list *next; /* Next in linked list. */
1524 int require_machine_suffix; /* Don't use without machine_suffix. */
1525 /* 2 means try both machine_suffix and just_machine_suffix. */
1526 int priority; /* Sort key - priority within list. */
1527 int os_multilib; /* 1 if OS multilib scheme should be used,
1528 0 for GCC multilib scheme. */
1533 struct prefix_list *plist; /* List of prefixes to try */
1534 int max_len; /* Max length of a prefix in PLIST */
1535 const char *name; /* Name of this list (used in config stuff) */
1538 /* List of prefixes to try when looking for executables. */
1540 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1542 /* List of prefixes to try when looking for startup (crt0) files. */
1544 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1546 /* List of prefixes to try when looking for include files. */
1548 static struct path_prefix include_prefixes = { 0, 0, "include" };
1550 /* Suffix to attach to directories searched for commands.
1551 This looks like `MACHINE/VERSION/'. */
1553 static const char *machine_suffix = 0;
1555 /* Suffix to attach to directories searched for commands.
1556 This is just `MACHINE/'. */
1558 static const char *just_machine_suffix = 0;
1560 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1562 static const char *gcc_exec_prefix;
1564 /* Adjusted value of standard_libexec_prefix. */
1566 static const char *gcc_libexec_prefix;
1568 /* Default prefixes to attach to command names. */
1570 #ifndef STANDARD_STARTFILE_PREFIX_1
1571 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1573 #ifndef STANDARD_STARTFILE_PREFIX_2
1574 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1577 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1578 #undef MD_EXEC_PREFIX
1579 #undef MD_STARTFILE_PREFIX
1580 #undef MD_STARTFILE_PREFIX_1
1583 /* If no prefixes defined, use the null string, which will disable them. */
1584 #ifndef MD_EXEC_PREFIX
1585 #define MD_EXEC_PREFIX ""
1587 #ifndef MD_STARTFILE_PREFIX
1588 #define MD_STARTFILE_PREFIX ""
1590 #ifndef MD_STARTFILE_PREFIX_1
1591 #define MD_STARTFILE_PREFIX_1 ""
1594 /* These directories are locations set at configure-time based on the
1595 --prefix option provided to configure. Their initializers are
1596 defined in Makefile.in. These paths are not *directly* used when
1597 gcc_exec_prefix is set because, in that case, we know where the
1598 compiler has been installed, and use paths relative to that
1599 location instead. */
1600 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1601 static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
1602 static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1603 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1605 /* For native compilers, these are well-known paths containing
1606 components that may be provided by the system. For cross
1607 compilers, these paths are not used. */
1608 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1609 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1610 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1611 static const char *const standard_startfile_prefix_1
1612 = STANDARD_STARTFILE_PREFIX_1;
1613 static const char *const standard_startfile_prefix_2
1614 = STANDARD_STARTFILE_PREFIX_2;
1616 /* A relative path to be used in finding the location of tools
1617 relative to the driver. */
1618 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1620 /* Subdirectory to use for locating libraries. Set by
1621 set_multilib_dir based on the compilation options. */
1623 static const char *multilib_dir;
1625 /* Subdirectory to use for locating libraries in OS conventions. Set by
1626 set_multilib_dir based on the compilation options. */
1628 static const char *multilib_os_dir;
1630 /* Structure to keep track of the specs that have been defined so far.
1631 These are accessed using %(specname) or %[specname] in a compiler
1636 /* The following 2 fields must be first */
1637 /* to allow EXTRA_SPECS to be initialized */
1638 const char *name; /* name of the spec. */
1639 const char *ptr; /* available ptr if no static pointer */
1641 /* The following fields are not initialized */
1642 /* by EXTRA_SPECS */
1643 const char **ptr_spec; /* pointer to the spec itself. */
1644 struct spec_list *next; /* Next spec in linked list. */
1645 int name_len; /* length of the name */
1646 int alloc_p; /* whether string was allocated */
1649 #define INIT_STATIC_SPEC(NAME,PTR) \
1650 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1652 /* List of statically defined specs. */
1653 static struct spec_list static_specs[] =
1655 INIT_STATIC_SPEC ("asm", &asm_spec),
1656 INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1657 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1658 INIT_STATIC_SPEC ("asm_options", &asm_options),
1659 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1660 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1661 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1662 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options),
1663 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options),
1664 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1665 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1666 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1667 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1668 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec),
1669 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec),
1670 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1671 INIT_STATIC_SPEC ("link", &link_spec),
1672 INIT_STATIC_SPEC ("lib", &lib_spec),
1673 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec),
1674 INIT_STATIC_SPEC ("mflib", &mflib_spec),
1675 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec),
1676 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1677 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1678 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1679 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1680 INIT_STATIC_SPEC ("version", &compiler_version),
1681 INIT_STATIC_SPEC ("multilib", &multilib_select),
1682 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1683 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1684 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1685 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1686 INIT_STATIC_SPEC ("multilib_options", &multilib_options),
1687 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1688 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec),
1689 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec),
1690 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec),
1691 INIT_STATIC_SPEC ("lto_libgcc", <o_libgcc_spec),
1692 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1693 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1694 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1695 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1696 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
1697 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec),
1698 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
1699 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
1702 #ifdef EXTRA_SPECS /* additional specs needed */
1703 /* Structure to keep track of just the first two args of a spec_list.
1704 That is all that the EXTRA_SPECS macro gives us. */
1707 const char *const name;
1708 const char *const ptr;
1711 static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1712 static struct spec_list *extra_specs = (struct spec_list *) 0;
1715 /* List of dynamically allocates specs that have been defined so far. */
1717 static struct spec_list *specs = (struct spec_list *) 0;
1719 /* List of static spec functions. */
1721 static const struct spec_function static_spec_functions[] =
1723 { "getenv", getenv_spec_function },
1724 { "if-exists", if_exists_spec_function },
1725 { "if-exists-else", if_exists_else_spec_function },
1726 { "replace-outfile", replace_outfile_spec_function },
1727 { "version-compare", version_compare_spec_function },
1728 { "include", include_spec_function },
1729 { "print-asm-header", print_asm_header_spec_function },
1730 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function },
1731 { "compare-debug-self-opt", compare_debug_self_opt_spec_function },
1732 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function },
1733 #ifdef EXTRA_SPEC_FUNCTIONS
1734 EXTRA_SPEC_FUNCTIONS
1739 static int processing_spec_function;
1741 /* Add appropriate libgcc specs to OBSTACK, taking into account
1742 various permutations of -shared-libgcc, -shared, and such. */
1744 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1746 #ifndef USE_LD_AS_NEEDED
1747 #define USE_LD_AS_NEEDED 0
1751 init_gcc_specs (struct obstack *obstack, const char *shared_name,
1752 const char *static_name, const char *eh_name)
1756 buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}"
1757 "%{!static:%{!static-libgcc:"
1758 #if USE_LD_AS_NEEDED
1759 "%{!shared-libgcc:",
1760 static_name, " --as-needed ", shared_name, " --no-as-needed"
1763 shared_name, "%{!shared: ", static_name, "}"
1767 "%{!shared-libgcc:", static_name, " ", eh_name, "}"
1768 "%{shared-libgcc:", shared_name, " ", static_name, "}"
1772 "%{shared-libgcc:", shared_name, "}"
1773 "%{!shared-libgcc:", static_name, "}"
1776 "%{shared:", shared_name, "}"
1781 obstack_grow (obstack, buf, strlen (buf));
1784 #endif /* ENABLE_SHARED_LIBGCC */
1786 /* Initialize the specs lookup routines. */
1791 struct spec_list *next = (struct spec_list *) 0;
1792 struct spec_list *sl = (struct spec_list *) 0;
1796 return; /* Already initialized. */
1799 notice ("Using built-in specs.\n");
1802 extra_specs = XCNEWVEC (struct spec_list, ARRAY_SIZE (extra_specs_1));
1804 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1806 sl = &extra_specs[i];
1807 sl->name = extra_specs_1[i].name;
1808 sl->ptr = extra_specs_1[i].ptr;
1810 sl->name_len = strlen (sl->name);
1811 sl->ptr_spec = &sl->ptr;
1816 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1818 sl = &static_specs[i];
1823 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1824 /* ??? If neither -shared-libgcc nor --static-libgcc was
1825 seen, then we should be making an educated guess. Some proposed
1826 heuristics for ELF include:
1828 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1829 program will be doing dynamic loading, which will likely
1830 need the shared libgcc.
1832 (2) If "-ldl", then it's also a fair bet that we're doing
1835 (3) For each ET_DYN we're linking against (either through -lfoo
1836 or /some/path/foo.so), check to see whether it or one of
1837 its dependencies depends on a shared libgcc.
1841 If the runtime is fixed to look for program headers instead
1842 of calling __register_frame_info at all, for each object,
1843 use the shared libgcc if any EH symbol referenced.
1845 If crtstuff is fixed to not invoke __register_frame_info
1846 automatically, for each object, use the shared libgcc if
1847 any non-empty unwind section found.
1849 Doing any of this probably requires invoking an external program to
1850 do the actual object file scanning. */
1852 const char *p = libgcc_spec;
1855 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1856 when given the proper command line arguments. */
1859 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1861 init_gcc_specs (&obstack,
1863 #ifdef USE_LIBUNWIND_EXCEPTIONS
1869 #ifdef USE_LIBUNWIND_EXCEPTIONS
1870 # ifdef HAVE_LD_STATIC_DYNAMIC
1871 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1881 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1883 /* Ug. We don't know shared library extensions. Hope that
1884 systems that use this form don't do shared libraries. */
1885 init_gcc_specs (&obstack,
1889 #ifdef USE_LIBUNWIND_EXCEPTIONS
1898 obstack_1grow (&obstack, *p);
1899 in_sep = (*p == ' ');
1904 obstack_1grow (&obstack, '\0');
1905 libgcc_spec = XOBFINISH (&obstack, const char *);
1908 #ifdef USE_AS_TRADITIONAL_FORMAT
1909 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1911 static const char tf[] = "--traditional-format ";
1912 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1913 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1914 asm_spec = XOBFINISH (&obstack, const char *);
1918 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1919 # ifdef LINK_BUILDID_SPEC
1920 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1921 obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof(LINK_BUILDID_SPEC) - 1);
1923 # ifdef LINK_EH_SPEC
1924 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1925 obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
1927 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
1928 link_spec = XOBFINISH (&obstack, const char *);
1934 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1935 removed; If the spec starts with a + then SPEC is added to the end of the
1939 set_spec (const char *name, const char *spec)
1941 struct spec_list *sl;
1942 const char *old_spec;
1943 int name_len = strlen (name);
1946 /* If this is the first call, initialize the statically allocated specs. */
1949 struct spec_list *next = (struct spec_list *) 0;
1950 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1952 sl = &static_specs[i];
1959 /* See if the spec already exists. */
1960 for (sl = specs; sl; sl = sl->next)
1961 if (name_len == sl->name_len && !strcmp (sl->name, name))
1966 /* Not found - make it. */
1967 sl = XNEW (struct spec_list);
1968 sl->name = xstrdup (name);
1969 sl->name_len = name_len;
1970 sl->ptr_spec = &sl->ptr;
1972 *(sl->ptr_spec) = "";
1977 old_spec = *(sl->ptr_spec);
1978 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1979 ? concat (old_spec, spec + 1, NULL)
1984 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1987 /* Free the old spec. */
1988 if (old_spec && sl->alloc_p)
1989 free (CONST_CAST(char *, old_spec));
1994 /* Accumulate a command (program name and args), and run it. */
1996 /* Vector of pointers to arguments in the current line of specifications. */
1998 static const char **argbuf;
2000 /* Number of elements allocated in argbuf. */
2002 static int argbuf_length;
2004 /* Number of elements in argbuf currently in use (containing args). */
2006 static int argbuf_index;
2008 /* Position in the argbuf array containing the name of the output file
2009 (the value associated with the "-o" flag). */
2011 static int have_o_argbuf_index = 0;
2013 /* Were the options -c, -S or -E passed. */
2014 static int have_c = 0;
2016 /* Was the option -o passed. */
2017 static int have_o = 0;
2019 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
2020 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2023 static struct temp_name {
2024 const char *suffix; /* suffix associated with the code. */
2025 int length; /* strlen (suffix). */
2026 int unique; /* Indicates whether %g or %u/%U was used. */
2027 const char *filename; /* associated filename. */
2028 int filename_length; /* strlen (filename). */
2029 struct temp_name *next;
2032 /* Number of commands executed so far. */
2034 static int execution_count;
2036 /* Number of commands that exited with a signal. */
2038 static int signal_count;
2040 /* Name with which this program was invoked. */
2042 static const char *programname;
2044 /* Allocate the argument vector. */
2050 argbuf = XNEWVEC (const char *, argbuf_length);
2053 /* Clear out the vector of arguments (after a command is executed). */
2061 /* Add one argument to the vector at the end.
2062 This is done when a space is seen or at the end of the line.
2063 If DELETE_ALWAYS is nonzero, the arg is a filename
2064 and the file should be deleted eventually.
2065 If DELETE_FAILURE is nonzero, the arg is a filename
2066 and the file should be deleted if this compilation fails. */
2069 store_arg (const char *arg, int delete_always, int delete_failure)
2071 if (argbuf_index + 1 == argbuf_length)
2072 argbuf = XRESIZEVEC (const char *, argbuf, (argbuf_length *= 2));
2074 argbuf[argbuf_index++] = arg;
2075 argbuf[argbuf_index] = 0;
2077 if (strcmp (arg, "-o") == 0)
2078 have_o_argbuf_index = argbuf_index;
2079 if (delete_always || delete_failure)
2080 record_temp_file (arg, delete_always, delete_failure);
2083 /* Load specs from a file name named FILENAME, replacing occurrences of
2084 various different types of line-endings, \r\n, \n\r and just \r, with
2088 load_specs (const char *filename)
2092 struct stat statbuf;
2099 notice ("Reading specs from %s\n", filename);
2101 /* Open and stat the file. */
2102 desc = open (filename, O_RDONLY, 0);
2104 pfatal_with_name (filename);
2105 if (stat (filename, &statbuf) < 0)
2106 pfatal_with_name (filename);
2108 /* Read contents of file into BUFFER. */
2109 buffer = XNEWVEC (char, statbuf.st_size + 1);
2110 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
2112 pfatal_with_name (filename);
2113 buffer[readlen] = 0;
2116 specs = XNEWVEC (char, readlen + 1);
2118 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
2124 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
2126 else if (*(buffer_p + 1) == '\n') /* \r\n */
2140 /* Read compilation specs from a file named FILENAME,
2141 replacing the default ones.
2143 A suffix which starts with `*' is a definition for
2144 one of the machine-specific sub-specs. The "suffix" should be
2145 *asm, *cc1, *cpp, *link, *startfile, etc.
2146 The corresponding spec is stored in asm_spec, etc.,
2147 rather than in the `compilers' vector.
2149 Anything invalid in the file is a fatal error. */
2152 read_specs (const char *filename, int main_p)
2157 buffer = load_specs (filename);
2159 /* Scan BUFFER for specs, putting them in the vector. */
2165 char *in, *out, *p1, *p2, *p3;
2167 /* Advance P in BUFFER to the next nonblank nocomment line. */
2168 p = skip_whitespace (p);
2172 /* Is this a special command that starts with '%'? */
2173 /* Don't allow this for the main specs file, since it would
2174 encourage people to overwrite it. */
2175 if (*p == '%' && !main_p)
2178 while (*p && *p != '\n')
2184 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
2185 && (p1[sizeof "%include" - 1] == ' '
2186 || p1[sizeof "%include" - 1] == '\t'))
2190 p1 += sizeof ("%include");
2191 while (*p1 == ' ' || *p1 == '\t')
2194 if (*p1++ != '<' || p[-2] != '>')
2195 fatal ("specs %%include syntax malformed after %ld characters",
2196 (long) (p1 - buffer + 1));
2199 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2200 read_specs (new_filename ? new_filename : p1, FALSE);
2203 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
2204 && (p1[sizeof "%include_noerr" - 1] == ' '
2205 || p1[sizeof "%include_noerr" - 1] == '\t'))
2209 p1 += sizeof "%include_noerr";
2210 while (*p1 == ' ' || *p1 == '\t')
2213 if (*p1++ != '<' || p[-2] != '>')
2214 fatal ("specs %%include syntax malformed after %ld characters",
2215 (long) (p1 - buffer + 1));
2218 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2220 read_specs (new_filename, FALSE);
2221 else if (verbose_flag)
2222 notice ("could not find specs file %s\n", p1);
2225 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
2226 && (p1[sizeof "%rename" - 1] == ' '
2227 || p1[sizeof "%rename" - 1] == '\t'))
2230 struct spec_list *sl;
2231 struct spec_list *newsl;
2233 /* Get original name. */
2234 p1 += sizeof "%rename";
2235 while (*p1 == ' ' || *p1 == '\t')
2238 if (! ISALPHA ((unsigned char) *p1))
2239 fatal ("specs %%rename syntax malformed after %ld characters",
2240 (long) (p1 - buffer));
2243 while (*p2 && !ISSPACE ((unsigned char) *p2))
2246 if (*p2 != ' ' && *p2 != '\t')
2247 fatal ("specs %%rename syntax malformed after %ld characters",
2248 (long) (p2 - buffer));
2252 while (*p2 == ' ' || *p2 == '\t')
2255 if (! ISALPHA ((unsigned char) *p2))
2256 fatal ("specs %%rename syntax malformed after %ld characters",
2257 (long) (p2 - buffer));
2259 /* Get new spec name. */
2261 while (*p3 && !ISSPACE ((unsigned char) *p3))
2265 fatal ("specs %%rename syntax malformed after %ld characters",
2266 (long) (p3 - buffer));
2269 for (sl = specs; sl; sl = sl->next)
2270 if (name_len == sl->name_len && !strcmp (sl->name, p1))
2274 fatal ("specs %s spec was not found to be renamed", p1);
2276 if (strcmp (p1, p2) == 0)
2279 for (newsl = specs; newsl; newsl = newsl->next)
2280 if (strcmp (newsl->name, p2) == 0)
2281 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2286 notice ("rename spec %s to %s\n", p1, p2);
2288 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
2292 set_spec (p2, *(sl->ptr_spec));
2294 free (CONST_CAST (char *, *(sl->ptr_spec)));
2296 *(sl->ptr_spec) = "";
2301 fatal ("specs unknown %% command after %ld characters",
2302 (long) (p1 - buffer));
2305 /* Find the colon that should end the suffix. */
2307 while (*p1 && *p1 != ':' && *p1 != '\n')
2310 /* The colon shouldn't be missing. */
2312 fatal ("specs file malformed after %ld characters",
2313 (long) (p1 - buffer));
2315 /* Skip back over trailing whitespace. */
2317 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
2320 /* Copy the suffix to a string. */
2321 suffix = save_string (p, p2 - p);
2322 /* Find the next line. */
2323 p = skip_whitespace (p1 + 1);
2325 fatal ("specs file malformed after %ld characters",
2326 (long) (p - buffer));
2329 /* Find next blank line or end of string. */
2330 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
2333 /* Specs end at the blank line and do not include the newline. */
2334 spec = save_string (p, p1 - p);
2337 /* Delete backslash-newline sequences from the spec. */
2342 if (in[0] == '\\' && in[1] == '\n')
2344 else if (in[0] == '#')
2345 while (*in && *in != '\n')
2353 if (suffix[0] == '*')
2355 if (! strcmp (suffix, "*link_command"))
2356 link_command_spec = spec;
2358 set_spec (suffix + 1, spec);
2362 /* Add this pair to the vector. */
2364 = XRESIZEVEC (struct compiler, compilers, n_compilers + 2);
2366 compilers[n_compilers].suffix = suffix;
2367 compilers[n_compilers].spec = spec;
2369 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
2373 link_command_spec = spec;
2376 if (link_command_spec == 0)
2377 fatal ("spec file has no spec for linking");
2380 /* Record the names of temporary files we tell compilers to write,
2381 and delete them at the end of the run. */
2383 /* This is the common prefix we use to make temp file names.
2384 It is chosen once for each run of this program.
2385 It is substituted into a spec by %g or %j.
2386 Thus, all temp file names contain this prefix.
2387 In practice, all temp file names start with this prefix.
2389 This prefix comes from the envvar TMPDIR if it is defined;
2390 otherwise, from the P_tmpdir macro if that is defined;
2391 otherwise, in /usr/tmp or /tmp;
2392 or finally the current directory if all else fails. */
2394 static const char *temp_filename;
2396 /* Length of the prefix. */
2398 static int temp_filename_length;
2400 /* Define the list of temporary files to delete. */
2405 struct temp_file *next;
2408 /* Queue of files to delete on success or failure of compilation. */
2409 static struct temp_file *always_delete_queue;
2410 /* Queue of files to delete on failure of compilation. */
2411 static struct temp_file *failure_delete_queue;
2413 /* Record FILENAME as a file to be deleted automatically.
2414 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2415 otherwise delete it in any case.
2416 FAIL_DELETE nonzero means delete it if a compilation step fails;
2417 otherwise delete it in any case. */
2420 record_temp_file (const char *filename, int always_delete, int fail_delete)
2422 char *const name = xstrdup (filename);
2426 struct temp_file *temp;
2427 for (temp = always_delete_queue; temp; temp = temp->next)
2428 if (! strcmp (name, temp->name))
2431 temp = XNEW (struct temp_file);
2432 temp->next = always_delete_queue;
2434 always_delete_queue = temp;
2441 struct temp_file *temp;
2442 for (temp = failure_delete_queue; temp; temp = temp->next)
2443 if (! strcmp (name, temp->name))
2446 temp = XNEW (struct temp_file);
2447 temp->next = failure_delete_queue;
2449 failure_delete_queue = temp;
2455 /* Delete all the temporary files whose names we previously recorded. */
2457 #ifndef DELETE_IF_ORDINARY
2458 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2461 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2462 if (unlink (NAME) < 0) \
2464 perror_with_name (NAME); \
2469 delete_if_ordinary (const char *name)
2475 printf ("Delete %s? (y or n) ", name);
2479 while ((c = getchar ()) != '\n' && c != EOF)
2482 if (i == 'y' || i == 'Y')
2484 DELETE_IF_ORDINARY (name, st, verbose_flag);
2488 delete_temp_files (void)
2490 struct temp_file *temp;
2492 for (temp = always_delete_queue; temp; temp = temp->next)
2493 delete_if_ordinary (temp->name);
2494 always_delete_queue = 0;
2497 /* Delete all the files to be deleted on error. */
2500 delete_failure_queue (void)
2502 struct temp_file *temp;
2504 for (temp = failure_delete_queue; temp; temp = temp->next)
2505 delete_if_ordinary (temp->name);
2509 clear_failure_queue (void)
2511 failure_delete_queue = 0;
2514 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2516 If DO_MULTI is true iterate over the paths twice, first with multilib
2517 suffix then without, otherwise iterate over the paths once without
2518 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2519 to avoid visiting the same path twice, but we could do better. For
2520 instance, /usr/lib/../lib is considered different from /usr/lib.
2521 At least EXTRA_SPACE chars past the end of the path passed to
2522 CALLBACK are available for use by the callback.
2523 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2525 Returns the value returned by CALLBACK. */
2528 for_each_path (const struct path_prefix *paths,
2531 void *(*callback) (char *, void *),
2532 void *callback_info)
2534 struct prefix_list *pl;
2535 const char *multi_dir = NULL;
2536 const char *multi_os_dir = NULL;
2537 const char *multi_suffix;
2538 const char *just_multi_suffix;
2541 bool skip_multi_dir = false;
2542 bool skip_multi_os_dir = false;
2544 multi_suffix = machine_suffix;
2545 just_multi_suffix = just_machine_suffix;
2546 if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0)
2548 multi_dir = concat (multilib_dir, dir_separator_str, NULL);
2549 multi_suffix = concat (multi_suffix, multi_dir, NULL);
2550 just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL);
2552 if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0)
2553 multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL);
2557 size_t multi_dir_len = 0;
2558 size_t multi_os_dir_len = 0;
2560 size_t just_suffix_len;
2564 multi_dir_len = strlen (multi_dir);
2566 multi_os_dir_len = strlen (multi_os_dir);
2567 suffix_len = strlen (multi_suffix);
2568 just_suffix_len = strlen (just_multi_suffix);
2572 len = paths->max_len + extra_space + 1;
2573 if (suffix_len > multi_os_dir_len)
2576 len += multi_os_dir_len;
2577 path = XNEWVEC (char, len);
2580 for (pl = paths->plist; pl != 0; pl = pl->next)
2582 len = strlen (pl->prefix);
2583 memcpy (path, pl->prefix, len);
2585 /* Look first in MACHINE/VERSION subdirectory. */
2586 if (!skip_multi_dir)
2588 memcpy (path + len, multi_suffix, suffix_len + 1);
2589 ret = callback (path, callback_info);
2594 /* Some paths are tried with just the machine (ie. target)
2595 subdir. This is used for finding as, ld, etc. */
2597 && pl->require_machine_suffix == 2)
2599 memcpy (path + len, just_multi_suffix, just_suffix_len + 1);
2600 ret = callback (path, callback_info);
2605 /* Now try the base path. */
2606 if (!pl->require_machine_suffix
2607 && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir))
2609 const char *this_multi;
2610 size_t this_multi_len;
2612 if (pl->os_multilib)
2614 this_multi = multi_os_dir;
2615 this_multi_len = multi_os_dir_len;
2619 this_multi = multi_dir;
2620 this_multi_len = multi_dir_len;
2624 memcpy (path + len, this_multi, this_multi_len + 1);
2628 ret = callback (path, callback_info);
2636 if (multi_dir == NULL && multi_os_dir == NULL)
2639 /* Run through the paths again, this time without multilibs.
2640 Don't repeat any we have already seen. */
2643 free (CONST_CAST (char *, multi_dir));
2645 free (CONST_CAST (char *, multi_suffix));
2646 multi_suffix = machine_suffix;
2647 free (CONST_CAST (char *, just_multi_suffix));
2648 just_multi_suffix = just_machine_suffix;
2651 skip_multi_dir = true;
2654 free (CONST_CAST (char *, multi_os_dir));
2655 multi_os_dir = NULL;
2658 skip_multi_os_dir = true;
2663 free (CONST_CAST (char *, multi_dir));
2664 free (CONST_CAST (char *, multi_suffix));
2665 free (CONST_CAST (char *, just_multi_suffix));
2668 free (CONST_CAST (char *, multi_os_dir));
2674 /* Callback for build_search_list. Adds path to obstack being built. */
2676 struct add_to_obstack_info {
2683 add_to_obstack (char *path, void *data)
2685 struct add_to_obstack_info *info = (struct add_to_obstack_info *) data;
2687 if (info->check_dir && !is_directory (path, false))
2690 if (!info->first_time)
2691 obstack_1grow (info->ob, PATH_SEPARATOR);
2693 obstack_grow (info->ob, path, strlen (path));
2695 info->first_time = false;
2699 /* Add or change the value of an environment variable, outputting the
2700 change to standard error if in verbose mode. */
2702 xputenv (const char *string)
2705 notice ("%s\n", string);
2706 putenv (CONST_CAST (char *, string));
2709 /* Build a list of search directories from PATHS.
2710 PREFIX is a string to prepend to the list.
2711 If CHECK_DIR_P is true we ensure the directory exists.
2712 If DO_MULTI is true, multilib paths are output first, then
2714 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2715 It is also used by the --print-search-dirs flag. */
2718 build_search_list (const struct path_prefix *paths, const char *prefix,
2719 bool check_dir, bool do_multi)
2721 struct add_to_obstack_info info;
2723 info.ob = &collect_obstack;
2724 info.check_dir = check_dir;
2725 info.first_time = true;
2727 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2728 obstack_1grow (&collect_obstack, '=');
2730 for_each_path (paths, do_multi, 0, add_to_obstack, &info);
2732 obstack_1grow (&collect_obstack, '\0');
2733 return XOBFINISH (&collect_obstack, char *);
2736 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2740 putenv_from_prefixes (const struct path_prefix *paths, const char *env_var,
2743 xputenv (build_search_list (paths, env_var, true, do_multi));
2746 /* Check whether NAME can be accessed in MODE. This is like access,
2747 except that it never considers directories to be executable. */
2750 access_check (const char *name, int mode)
2756 if (stat (name, &st) < 0
2757 || S_ISDIR (st.st_mode))
2761 return access (name, mode);
2764 /* Callback for find_a_file. Appends the file name to the directory
2765 path. If the resulting file exists in the right mode, return the
2766 full pathname to the file. */
2768 struct file_at_path_info {
2777 file_at_path (char *path, void *data)
2779 struct file_at_path_info *info = (struct file_at_path_info *) data;
2780 size_t len = strlen (path);
2782 memcpy (path + len, info->name, info->name_len);
2783 len += info->name_len;
2785 /* Some systems have a suffix for executable files.
2786 So try appending that first. */
2787 if (info->suffix_len)
2789 memcpy (path + len, info->suffix, info->suffix_len + 1);
2790 if (access_check (path, info->mode) == 0)
2795 if (access_check (path, info->mode) == 0)
2801 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2802 access to check permissions. If DO_MULTI is true, search multilib
2803 paths then non-multilib paths, otherwise do not search multilib paths.
2804 Return 0 if not found, otherwise return its name, allocated with malloc. */
2807 find_a_file (const struct path_prefix *pprefix, const char *name, int mode,
2810 struct file_at_path_info info;
2812 #ifdef DEFAULT_ASSEMBLER
2813 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2814 return xstrdup (DEFAULT_ASSEMBLER);
2817 #ifdef DEFAULT_LINKER
2818 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2819 return xstrdup (DEFAULT_LINKER);
2822 /* Determine the filename to execute (special case for absolute paths). */
2824 if (IS_ABSOLUTE_PATH (name))
2826 if (access (name, mode) == 0)
2827 return xstrdup (name);
2833 info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "";
2834 info.name_len = strlen (info.name);
2835 info.suffix_len = strlen (info.suffix);
2838 return (char*) for_each_path (pprefix, do_multi,
2839 info.name_len + info.suffix_len,
2840 file_at_path, &info);
2843 /* Ranking of prefixes in the sort list. -B prefixes are put before
2846 enum path_prefix_priority
2848 PREFIX_PRIORITY_B_OPT,
2849 PREFIX_PRIORITY_LAST
2852 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2853 order according to PRIORITY. Within each PRIORITY, new entries are
2856 If WARN is nonzero, we will warn if no file is found
2857 through this prefix. WARN should point to an int
2858 which will be set to 1 if this entry is used.
2860 COMPONENT is the value to be passed to update_path.
2862 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2863 the complete value of machine_suffix.
2864 2 means try both machine_suffix and just_machine_suffix. */
2867 add_prefix (struct path_prefix *pprefix, const char *prefix,
2868 const char *component, /* enum prefix_priority */ int priority,
2869 int require_machine_suffix, int os_multilib)
2871 struct prefix_list *pl, **prev;
2874 for (prev = &pprefix->plist;
2875 (*prev) != NULL && (*prev)->priority <= priority;
2876 prev = &(*prev)->next)
2879 /* Keep track of the longest prefix. */
2881 prefix = update_path (prefix, component);
2882 len = strlen (prefix);
2883 if (len > pprefix->max_len)
2884 pprefix->max_len = len;
2886 pl = XNEW (struct prefix_list);
2887 pl->prefix = prefix;
2888 pl->require_machine_suffix = require_machine_suffix;
2889 pl->priority = priority;
2890 pl->os_multilib = os_multilib;
2892 /* Insert after PREV. */
2897 /* Same as add_prefix, but prepending target_system_root to prefix. */
2898 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2900 add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
2901 const char *component,
2902 /* enum prefix_priority */ int priority,
2903 int require_machine_suffix, int os_multilib)
2905 if (!IS_ABSOLUTE_PATH (prefix))
2906 fatal ("system path '%s' is not absolute", prefix);
2908 if (target_system_root)
2910 if (target_sysroot_suffix)
2911 prefix = concat (target_sysroot_suffix, prefix, NULL);
2912 prefix = concat (target_system_root, prefix, NULL);
2914 /* We have to override this because GCC's notion of sysroot
2915 moves along with GCC. */
2919 add_prefix (pprefix, prefix, component, priority,
2920 require_machine_suffix, os_multilib);
2923 /* Execute the command specified by the arguments on the current line of spec.
2924 When using pipes, this includes several piped-together commands
2925 with `|' between them.
2927 Return 0 if successful, -1 if failed. */
2933 int n_commands; /* # of command. */
2935 struct pex_obj *pex;
2938 const char *prog; /* program name. */
2939 const char **argv; /* vector of args. */
2942 struct command *commands; /* each command buffer with above info. */
2944 gcc_assert (!processing_spec_function);
2948 string = find_a_file (&exec_prefixes, argbuf[0], X_OK, false);
2949 argbuf[0] = (string) ? string : argbuf[0];
2950 insert_wrapper (wrapper_string);
2953 /* Count # of piped commands. */
2954 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2955 if (strcmp (argbuf[i], "|") == 0)
2958 /* Get storage for each command. */
2959 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2961 /* Split argbuf into its separate piped processes,
2962 and record info about each one.
2963 Also search for the programs that are to be run. */
2965 commands[0].prog = argbuf[0]; /* first command. */
2966 commands[0].argv = &argbuf[0];
2968 if (!wrapper_string)
2970 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false);
2971 commands[0].argv[0] = (string) ? string : commands[0].argv[0];
2974 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2975 if (strcmp (argbuf[i], "|") == 0)
2976 { /* each command. */
2977 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2978 fatal ("-pipe not supported");
2980 argbuf[i] = 0; /* termination of command args. */
2981 commands[n_commands].prog = argbuf[i + 1];
2982 commands[n_commands].argv = &argbuf[i + 1];
2983 string = find_a_file (&exec_prefixes, commands[n_commands].prog,
2986 commands[n_commands].argv[0] = string;
2990 argbuf[argbuf_index] = 0;
2992 /* If -v, print what we are about to do, and maybe query. */
2996 /* For help listings, put a blank line between sub-processes. */
2997 if (print_help_list)
2998 fputc ('\n', stderr);
3000 /* Print each piped command as a separate line. */
3001 for (i = 0; i < n_commands; i++)
3003 const char *const *j;
3005 if (verbose_only_flag)
3007 for (j = commands[i].argv; *j; j++)
3010 fprintf (stderr, " \"");
3011 for (p = *j; *p; ++p)
3013 if (*p == '"' || *p == '\\' || *p == '$')
3014 fputc ('\\', stderr);
3017 fputc ('"', stderr);
3021 for (j = commands[i].argv; *j; j++)
3022 fprintf (stderr, " %s", *j);
3024 /* Print a pipe symbol after all but the last command. */
3025 if (i + 1 != n_commands)
3026 fprintf (stderr, " |");
3027 fprintf (stderr, "\n");
3030 if (verbose_only_flag != 0)
3032 /* verbose_only_flag should act as if the spec was
3033 executed, so increment execution_count before
3034 returning. This prevents spurious warnings about
3035 unused linker input files, etc. */
3040 notice ("\nGo ahead? (y or n) ");
3044 while (getchar () != '\n')
3047 if (i != 'y' && i != 'Y')
3052 #ifdef ENABLE_VALGRIND_CHECKING
3053 /* Run the each command through valgrind. To simplify prepending the
3054 path to valgrind and the option "-q" (for quiet operation unless
3055 something triggers), we allocate a separate argv array. */
3057 for (i = 0; i < n_commands; i++)
3063 for (argc = 0; commands[i].argv[argc] != NULL; argc++)
3066 argv = XALLOCAVEC (const char *, argc + 3);
3068 argv[0] = VALGRIND_PATH;
3070 for (j = 2; j < argc + 2; j++)
3071 argv[j] = commands[i].argv[j - 2];
3074 commands[i].argv = argv;
3075 commands[i].prog = argv[0];
3079 /* Run each piped subprocess. */
3081 pex = pex_init (PEX_USE_PIPES | ((report_times || report_times_to_file)
3082 ? PEX_RECORD_TIMES : 0),
3083 programname, temp_filename);
3085 pfatal_with_name (_("pex_init failed"));
3087 for (i = 0; i < n_commands; i++)
3091 const char *string = commands[i].argv[0];
3093 errmsg = pex_run (pex,
3094 ((i + 1 == n_commands ? PEX_LAST : 0)
3095 | (string == commands[i].prog ? PEX_SEARCH : 0)),
3096 string, CONST_CAST (char **, commands[i].argv),
3105 pfatal_with_name (errmsg);
3109 if (string != commands[i].prog)
3110 free (CONST_CAST (char *, string));
3115 /* Wait for all the subprocesses to finish. */
3119 struct pex_time *times = NULL;
3122 statuses = (int *) alloca (n_commands * sizeof (int));
3123 if (!pex_get_status (pex, n_commands, statuses))
3124 pfatal_with_name (_("failed to get exit status"));
3126 if (report_times || report_times_to_file)
3128 times = (struct pex_time *) alloca (n_commands * sizeof (struct pex_time));
3129 if (!pex_get_times (pex, n_commands, times))
3130 pfatal_with_name (_("failed to get process times"));
3135 for (i = 0; i < n_commands; ++i)
3137 int status = statuses[i];
3139 if (WIFSIGNALED (status))
3142 /* SIGPIPE is a special case. It happens in -pipe mode
3143 when the compiler dies before the preprocessor is done,
3144 or the assembler dies before the compiler is done.
3145 There's generally been an error already, and this is
3146 just fallout. So don't generate another error unless
3147 we would otherwise have succeeded. */
3148 if (WTERMSIG (status) == SIGPIPE
3149 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
3157 Internal error: %s (program %s)\n\
3158 Please submit a full bug report.\n\
3159 See %s for instructions.",
3160 strsignal (WTERMSIG (status)), commands[i].prog,
3163 else if (WIFEXITED (status)
3164 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
3166 if (WEXITSTATUS (status) > greatest_status)
3167 greatest_status = WEXITSTATUS (status);
3171 if (report_times || report_times_to_file)
3173 struct pex_time *pt = ×[i];
3176 ut = ((double) pt->user_seconds
3177 + (double) pt->user_microseconds / 1.0e6);
3178 st = ((double) pt->system_seconds
3179 + (double) pt->system_microseconds / 1.0e6);
3184 notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
3186 if (report_times_to_file)
3189 const char *const *j;
3191 fprintf (report_times_to_file, "%g %g", ut, st);
3193 for (j = &commands[i].prog; *j; j = &commands[i].argv[++c])
3196 for (p = *j; *p; ++p)
3197 if (*p == '"' || *p == '\\' || *p == '$'
3203 fprintf (report_times_to_file, " \"");
3204 for (p = *j; *p; ++p)
3206 if (*p == '"' || *p == '\\' || *p == '$')
3207 fputc ('\\', report_times_to_file);
3208 fputc (*p, report_times_to_file);
3210 fputc ('"', report_times_to_file);
3213 fprintf (report_times_to_file, " %s", *j);
3216 fputc ('\n', report_times_to_file);
3226 /* Find all the switches given to us
3227 and make a vector describing them.
3228 The elements of the vector are strings, one per switch given.
3229 If a switch uses following arguments, then the `part1' field
3230 is the switch itself and the `args' field
3231 is a null-terminated vector containing the following arguments.
3232 Bits in the `live_cond' field are:
3233 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3234 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3235 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3236 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
3237 in all do_spec calls afterwards. Used for %<S from self specs.
3238 The `validated' field is nonzero if any spec has looked at this switch;
3239 if it remains zero at the end of the run, it must be meaningless. */
3241 #define SWITCH_LIVE 0x1
3242 #define SWITCH_FALSE 0x2
3243 #define SWITCH_IGNORE 0x4
3244 #define SWITCH_IGNORE_PERMANENTLY 0x8
3250 unsigned int live_cond;
3251 unsigned char validated;
3252 unsigned char ordering;
3255 static struct switchstr *switches;
3257 static int n_switches;
3259 /* Set to zero if -fcompare-debug is disabled, positive if it's
3260 enabled and we're running the first compilation, negative if it's
3261 enabled and we're running the second compilation. For most of the
3262 time, it's in the range -1..1, but it can be temporarily set to 2
3263 or 3 to indicate that the -fcompare-debug flags didn't come from
3264 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3265 variable, until a synthesized -fcompare-debug flag is added to the
3269 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3270 int compare_debug_second;
3272 /* Set to the flags that should be passed to the second compilation in
3273 a -fcompare-debug compilation. */
3274 const char *compare_debug_opt;
3276 static struct switchstr *switches_debug_check[2];
3278 static int n_switches_debug_check[2];
3280 static char *debug_check_temp_file[2];
3282 /* Language is one of three things:
3284 1) The name of a real programming language.
3285 2) NULL, indicating that no one has figured out
3287 3) '*', indicating that the file should be passed
3292 const char *language;
3293 struct compiler *incompiler;
3298 /* Also a vector of input files specified. */
3300 static struct infile *infiles;
3304 /* True if multiple input files are being compiled to a single
3307 static bool combine_inputs;
3309 /* This counts the number of libraries added by lang_specific_driver, so that
3310 we can tell if there were any user supplied any files or libraries. */
3312 static int added_libraries;
3314 /* And a vector of corresponding output files is made up later. */
3316 const char **outfiles;
3318 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3320 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3321 is true if we should look for an executable suffix. DO_OBJ
3322 is true if we should look for an object suffix. */
3325 convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
3326 int do_obj ATTRIBUTE_UNUSED)
3328 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3336 len = strlen (name);
3338 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3339 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3340 if (do_obj && len > 2
3341 && name[len - 2] == '.'
3342 && name[len - 1] == 'o')
3344 obstack_grow (&obstack, name, len - 2);
3345 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
3346 name = XOBFINISH (&obstack, const char *);
3350 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3351 /* If there is no filetype, make it the executable suffix (which includes
3352 the "."). But don't get confused if we have just "-o". */
3353 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
3356 for (i = len - 1; i >= 0; i--)
3357 if (IS_DIR_SEPARATOR (name[i]))
3360 for (i++; i < len; i++)
3364 obstack_grow (&obstack, name, len);
3365 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
3366 strlen (TARGET_EXECUTABLE_SUFFIX));
3367 name = XOBFINISH (&obstack, const char *);
3374 /* Display the command line switches accepted by gcc. */
3378 printf (_("Usage: %s [options] file...\n"), programname);
3379 fputs (_("Options:\n"), stdout);
3381 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
3382 fputs (_(" --help Display this information\n"), stdout);
3383 fputs (_(" --target-help Display target specific command line options\n"), stdout);
3384 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout);
3385 fputs (_(" Display specific types of command line options\n"), stdout);
3387 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
3388 fputs (_(" --version Display compiler version information\n"), stdout);
3389 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
3390 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
3391 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
3392 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
3393 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
3394 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
3395 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
3396 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
3398 -print-multi-lib Display the mapping between command line options and\n\
3399 multiple library search directories\n"), stdout);
3400 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
3401 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout);
3402 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout);
3403 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
3404 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
3405 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
3406 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout);
3407 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout);
3408 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
3409 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout);
3410 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
3411 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout);
3413 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3414 prefixes to other gcc components\n"), stdout);
3415 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
3416 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
3417 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
3418 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
3420 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3421 and libraries\n"), stdout);
3422 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
3423 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
3424 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
3425 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
3426 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
3427 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3428 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3429 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3430 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3432 -x <language> Specify the language of the following input files\n\
3433 Permissible languages include: c c++ assembler none\n\
3434 'none' means revert to the default behavior of\n\
3435 guessing the language based on the file's extension\n\
3439 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3440 passed on to the various sub-processes invoked by %s. In order to pass\n\
3441 other options on to these processes the -W<letter> options must be used.\n\
3444 /* The rest of the options are displayed by invocations of the various
3449 add_preprocessor_option (const char *option, int len)
3451 n_preprocessor_options++;
3453 if (! preprocessor_options)
3454 preprocessor_options = XNEWVEC (char *, n_preprocessor_options);
3456 preprocessor_options = XRESIZEVEC (char *, preprocessor_options,
3457 n_preprocessor_options);
3459 preprocessor_options [n_preprocessor_options - 1] =
3460 save_string (option, len);
3464 add_assembler_option (const char *option, int len)
3466 n_assembler_options++;
3468 if (! assembler_options)
3469 assembler_options = XNEWVEC (char *, n_assembler_options);
3471 assembler_options = XRESIZEVEC (char *, assembler_options,
3472 n_assembler_options);
3474 assembler_options [n_assembler_options - 1] = save_string (option, len);
3478 add_linker_option (const char *option, int len)
3482 if (! linker_options)
3483 linker_options = XNEWVEC (char *, n_linker_options);
3485 linker_options = XRESIZEVEC (char *, linker_options, n_linker_options);
3487 linker_options [n_linker_options - 1] = save_string (option, len);
3490 /* Create the vector `switches' and its contents.
3491 Store its length in `n_switches'. */
3494 process_command (int argc, const char **argv)
3499 const char *spec_lang = 0;
3500 int last_language_n_infiles;
3501 int lang_n_infiles = 0;
3502 #ifdef MODIFY_TARGET_NAME
3503 int is_modify_target_name;
3506 const char *tooldir_prefix;
3507 char *(*get_relative_prefix) (const char *, const char *,
3508 const char *) = NULL;
3510 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3514 added_libraries = 0;
3516 /* Figure compiler version from version string. */
3518 compiler_version = temp1 = xstrdup (version_string);
3520 for (; *temp1; ++temp1)
3529 /* If there is a -V or -b option (or both), process it now, before
3530 trying to interpret the rest of the command line.
3531 Use heuristic that all configuration names must have at least
3532 one dash '-'. This allows us to pass options starting with -b. */
3533 if (argc > 1 && argv[1][0] == '-'
3534 && (argv[1][1] == 'V'
3535 || (argv[1][1] == 'b'
3536 && (argv[1][2] == '\0'
3537 || NULL != strchr (argv[1] + 2, '-')))))
3539 const char *new_version = DEFAULT_TARGET_VERSION;
3540 const char *new_machine = DEFAULT_TARGET_MACHINE;
3541 const char *progname = argv[0];
3549 while (argc > 1 && argv[1][0] == '-'
3550 && (argv[1][1] == 'V'
3551 || (argv[1][1] == 'b'
3552 && (argv[1][2] == '\0'
3553 || NULL != strchr (argv[1] + 2, '-')))))
3555 char opt = argv[1][1];
3557 if (argv[1][2] != '\0')
3570 fatal ("'-%c' option must have argument", opt);
3577 for (baselen = strlen (progname); baselen > 0; baselen--)
3578 if (IS_DIR_SEPARATOR (progname[baselen-1]))
3580 new_argv0 = XDUPVAR (char, progname, baselen,
3581 baselen + concat_length (new_version, new_machine,
3582 "-gcc-", NULL) + 1);
3583 strcpy (new_argv0 + baselen, new_machine);
3584 strcat (new_argv0, "-gcc-");
3585 strcat (new_argv0, new_version);
3587 new_argv = XDUPVEC (char *, argv, argc + 1);
3588 new_argv[0] = new_argv0;
3590 errmsg = pex_one (PEX_SEARCH, new_argv0, new_argv, progname, NULL,
3591 NULL, &status, &err);
3596 fatal ("couldn't run '%s': %s", new_argv0, errmsg);
3598 fatal ("couldn't run '%s': %s: %s", new_argv0, errmsg,
3604 /* Convert new-style -- options to old-style. */
3605 translate_options (&argc,
3606 CONST_CAST2 (const char *const **, const char ***,
3609 /* Handle any -no-canonical-prefixes flag early, to assign the function
3610 that builds relative prefixes. This function creates default search
3611 paths that are needed later in normal option handling. */
3613 for (i = 1; i < argc; i++)
3615 if (! strcmp (argv[i], "-no-canonical-prefixes"))
3617 get_relative_prefix = make_relative_prefix_ignore_links;
3621 if (! get_relative_prefix)
3622 get_relative_prefix = make_relative_prefix;
3624 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3625 see if we can create it from the pathname specified in argv[0]. */
3627 gcc_libexec_prefix = standard_libexec_prefix;
3629 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3630 if (!gcc_exec_prefix)
3632 gcc_exec_prefix = get_relative_prefix (argv[0],
3633 standard_bindir_prefix,
3634 standard_exec_prefix);
3635 gcc_libexec_prefix = get_relative_prefix (argv[0],
3636 standard_bindir_prefix,
3637 standard_libexec_prefix);
3638 if (gcc_exec_prefix)
3639 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3643 /* make_relative_prefix requires a program name, but
3644 GCC_EXEC_PREFIX is typically a directory name with a trailing
3645 / (which is ignored by make_relative_prefix), so append a
3647 char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL);
3648 gcc_libexec_prefix = get_relative_prefix (tmp_prefix,
3649 standard_exec_prefix,
3650 standard_libexec_prefix);
3652 /* The path is unrelocated, so fallback to the original setting. */
3653 if (!gcc_libexec_prefix)
3654 gcc_libexec_prefix = standard_libexec_prefix;
3660 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3661 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3662 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3664 /* Do language-specific adjustment/addition of flags. */
3665 lang_specific_driver (&argc,
3666 CONST_CAST2 (const char *const **, const char ***,
3670 if (gcc_exec_prefix)
3672 int len = strlen (gcc_exec_prefix);
3674 if (len > (int) sizeof ("/lib/gcc/") - 1
3675 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3677 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
3678 if (IS_DIR_SEPARATOR (*temp)
3679 && strncmp (temp + 1, "lib", 3) == 0
3680 && IS_DIR_SEPARATOR (temp[4])
3681 && strncmp (temp + 5, "gcc", 3) == 0)
3682 len -= sizeof ("/lib/gcc/") - 1;
3685 set_std_prefix (gcc_exec_prefix, len);
3686 add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
3687 PREFIX_PRIORITY_LAST, 0, 0);
3688 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3689 PREFIX_PRIORITY_LAST, 0, 0);
3692 /* COMPILER_PATH and LIBRARY_PATH have values
3693 that are lists of directory names with colons. */
3695 GET_ENVIRONMENT (temp, "COMPILER_PATH");
3698 const char *startp, *endp;
3699 char *nstore = (char *) alloca (strlen (temp) + 3);
3701 startp = endp = temp;
3704 if (*endp == PATH_SEPARATOR || *endp == 0)
3706 strncpy (nstore, startp, endp - startp);
3708 strcpy (nstore, concat (".", dir_separator_str, NULL));
3709 else if (!IS_DIR_SEPARATOR (endp[-1]))
3711 nstore[endp - startp] = DIR_SEPARATOR;
3712 nstore[endp - startp + 1] = 0;
3715 nstore[endp - startp] = 0;
3716 add_prefix (&exec_prefixes, nstore, 0,
3717 PREFIX_PRIORITY_LAST, 0, 0);
3718 add_prefix (&include_prefixes, nstore, 0,
3719 PREFIX_PRIORITY_LAST, 0, 0);
3722 endp = startp = endp + 1;
3729 GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
3730 if (temp && *cross_compile == '0')
3732 const char *startp, *endp;
3733 char *nstore = (char *) alloca (strlen (temp) + 3);
3735 startp = endp = temp;
3738 if (*endp == PATH_SEPARATOR || *endp == 0)
3740 strncpy (nstore, startp, endp - startp);
3742 strcpy (nstore, concat (".", dir_separator_str, NULL));
3743 else if (!IS_DIR_SEPARATOR (endp[-1]))
3745 nstore[endp - startp] = DIR_SEPARATOR;
3746 nstore[endp - startp + 1] = 0;
3749 nstore[endp - startp] = 0;
3750 add_prefix (&startfile_prefixes, nstore, NULL,
3751 PREFIX_PRIORITY_LAST, 0, 1);
3754 endp = startp = endp + 1;
3761 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3762 GET_ENVIRONMENT (temp, "LPATH");
3763 if (temp && *cross_compile == '0')
3765 const char *startp, *endp;
3766 char *nstore = (char *) alloca (strlen (temp) + 3);
3768 startp = endp = temp;
3771 if (*endp == PATH_SEPARATOR || *endp == 0)
3773 strncpy (nstore, startp, endp - startp);
3775 strcpy (nstore, concat (".", dir_separator_str, NULL));
3776 else if (!IS_DIR_SEPARATOR (endp[-1]))
3778 nstore[endp - startp] = DIR_SEPARATOR;
3779 nstore[endp - startp + 1] = 0;
3782 nstore[endp - startp] = 0;
3783 add_prefix (&startfile_prefixes, nstore, NULL,
3784 PREFIX_PRIORITY_LAST, 0, 1);
3787 endp = startp = endp + 1;
3794 /* Scan argv twice. Here, the first time, just count how many switches
3795 there will be in their vector, and how many input files in theirs.
3796 Here we also parse the switches that cc itself uses (e.g. -v). */
3798 for (i = 1; i < argc; i++)
3800 if (! strcmp (argv[i], "-dumpspecs"))
3802 struct spec_list *sl;
3804 for (sl = specs; sl; sl = sl->next)
3805 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3806 if (link_command_spec)
3807 printf ("*link_command:\n%s\n\n", link_command_spec);
3810 else if (! strcmp (argv[i], "-dumpversion"))
3812 printf ("%s\n", spec_version);
3815 else if (! strcmp (argv[i], "-dumpmachine"))
3817 printf ("%s\n", spec_machine);
3820 else if (strcmp (argv[i], "-fversion") == 0)
3822 /* translate_options () has turned --version into -fversion. */
3825 /* We will be passing a dummy file on to the sub-processes. */
3829 /* CPP driver cannot obtain switch from cc1_options. */
3831 add_preprocessor_option ("--version", strlen ("--version"));
3832 add_assembler_option ("--version", strlen ("--version"));
3833 add_linker_option ("--version", strlen ("--version"));
3835 else if (strcmp (argv[i], "-fhelp") == 0)
3837 /* translate_options () has turned --help into -fhelp. */
3838 print_help_list = 1;
3840 /* We will be passing a dummy file on to the sub-processes. */
3844 /* CPP driver cannot obtain switch from cc1_options. */
3846 add_preprocessor_option ("--help", 6);
3847 add_assembler_option ("--help", 6);
3848 add_linker_option ("--help", 6);
3850 else if (strncmp (argv[i], "-fhelp=", 7) == 0)
3852 /* translate_options () has turned --help into -fhelp. */
3853 print_subprocess_help = 2;
3855 /* We will be passing a dummy file on to the sub-processes. */
3859 else if (strcmp (argv[i], "-ftarget-help") == 0)
3861 /* translate_options() has turned --target-help into -ftarget-help. */
3862 print_subprocess_help = 1;
3864 /* We will be passing a dummy file on to the sub-processes. */
3868 /* CPP driver cannot obtain switch from cc1_options. */
3870 add_preprocessor_option ("--target-help", 13);
3871 add_assembler_option ("--target-help", 13);
3872 add_linker_option ("--target-help", 13);
3874 else if (! strcmp (argv[i], "-pass-exit-codes"))
3876 pass_exit_codes = 1;
3879 else if (! strcmp (argv[i], "-print-search-dirs"))
3880 print_search_dirs = 1;
3881 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3882 print_file_name = "libgcc.a";
3883 else if (! strncmp (argv[i], "-print-file-name=", 17))
3884 print_file_name = argv[i] + 17;
3885 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3886 print_prog_name = argv[i] + 17;
3887 else if (! strcmp (argv[i], "-print-multi-lib"))
3888 print_multi_lib = 1;
3889 else if (! strcmp (argv[i], "-print-multi-directory"))
3890 print_multi_directory = 1;
3891 else if (! strcmp (argv[i], "-print-sysroot"))
3893 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3894 print_multi_os_directory = 1;
3895 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
3896 print_sysroot_headers_suffix = 1;
3897 else if (! strcmp (argv[i], "-fcompare-debug-second"))
3899 compare_debug_second = 1;
3902 else if (! strcmp (argv[i], "-fno-compare-debug"))
3904 argv[i] = "-fcompare-debug=";
3905 goto compare_debug_with_arg;
3907 else if (! strcmp (argv[i], "-fcompare-debug"))
3909 argv[i] = "-fcompare-debug=-gtoggle";
3910 goto compare_debug_with_arg;
3912 #define OPT "-fcompare-debug="
3913 else if (! strncmp (argv[i], OPT, sizeof (OPT) - 1))
3916 compare_debug_with_arg:
3917 opt = argv[i] + sizeof (OPT) - 1;
3923 if (compare_debug < 0)
3924 compare_debug_opt = NULL;
3926 compare_debug_opt = opt;
3929 else if (! strncmp (argv[i], "-Wa,", 4))
3932 /* Pass the rest of this option to the assembler. */
3934 /* Split the argument at commas. */
3936 for (j = 4; argv[i][j]; j++)
3937 if (argv[i][j] == ',')
3939 add_assembler_option (argv[i] + prev, j - prev);
3943 /* Record the part after the last comma. */
3944 add_assembler_option (argv[i] + prev, j - prev);
3946 else if (! strncmp (argv[i], "-Wp,", 4))
3949 /* Pass the rest of this option to the preprocessor. */
3951 /* Split the argument at commas. */
3953 for (j = 4; argv[i][j]; j++)
3954 if (argv[i][j] == ',')
3956 add_preprocessor_option (argv[i] + prev, j - prev);
3960 /* Record the part after the last comma. */
3961 add_preprocessor_option (argv[i] + prev, j - prev);
3963 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3964 /* The +e options to the C++ front-end. */
3966 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3969 /* Split the argument at commas. */
3970 for (j = 3; argv[i][j]; j++)
3971 n_infiles += (argv[i][j] == ',');
3973 else if (strcmp (argv[i], "-Xlinker") == 0)
3976 fatal ("argument to '-Xlinker' is missing");
3981 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3984 fatal ("argument to '-Xpreprocessor' is missing");
3986 add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
3988 else if (strcmp (argv[i], "-Xassembler") == 0)
3991 fatal ("argument to '-Xassembler' is missing");
3993 add_assembler_option (argv[i+1], strlen (argv[i+1]));
3995 else if (strcmp (argv[i], "-l") == 0)
3998 fatal ("argument to '-l' is missing");
4003 else if (strncmp (argv[i], "-l", 2) == 0)
4005 else if (strcmp (argv[i], "-save-temps") == 0)
4007 save_temps_flag = SAVE_TEMPS_CWD;
4010 else if (strncmp (argv[i], "-save-temps=", 12) == 0)
4013 if (strcmp (argv[i]+12, "cwd") == 0)
4014 save_temps_flag = SAVE_TEMPS_CWD;
4015 else if (strcmp (argv[i]+12, "obj") == 0
4016 || strcmp (argv[i]+12, "object") == 0)
4017 save_temps_flag = SAVE_TEMPS_OBJ;
4019 fatal ("'%s' is an unknown -save-temps option", argv[i]);
4021 else if (strcmp (argv[i], "-no-canonical-prefixes") == 0)
4022 /* Already handled as a special case, so ignored here. */
4024 else if (strcmp (argv[i], "-combine") == 0)
4029 else if (strcmp (argv[i], "-specs") == 0)
4031 struct user_specs *user = XNEW (struct user_specs);
4033 fatal ("argument to '-specs' is missing");
4035 user->next = (struct user_specs *) 0;
4036 user->filename = argv[i];
4037 if (user_specs_tail)
4038 user_specs_tail->next = user;
4040 user_specs_head = user;
4041 user_specs_tail = user;
4043 else if (strncmp (argv[i], "-specs=", 7) == 0)
4045 struct user_specs *user = XNEW (struct user_specs);
4046 if (strlen (argv[i]) == 7)
4047 fatal ("argument to '-specs=' is missing");
4049 user->next = (struct user_specs *) 0;
4050 user->filename = argv[i] + 7;
4051 if (user_specs_tail)
4052 user_specs_tail->next = user;
4054 user_specs_head = user;
4055 user_specs_tail = user;
4057 else if (strcmp (argv[i], "-time") == 0)
4059 else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
4061 if (report_times_to_file)
4062 fclose (report_times_to_file);
4063 report_times_to_file = fopen (argv[i] + sizeof ("-time=") - 1, "a");
4065 else if (strcmp (argv[i], "-pipe") == 0)
4067 /* -pipe has to go into the switches array as well as
4072 else if (strcmp (argv[i], "-wrapper") == 0)
4075 fatal ("argument to '-wrapper' is missing");
4077 wrapper_string = argv[i];
4081 else if (strcmp (argv[i], "-###") == 0)
4083 /* This is similar to -v except that there is no execution
4084 of the commands and the echoed arguments are quoted. It
4085 is intended for use in shell scripts to capture the
4086 driver-generated command line. */
4087 verbose_only_flag++;
4090 else if (argv[i][0] == '-' && argv[i][1] != 0)
4092 const char *p = &argv[i][1];
4098 if (p[1] && NULL == strchr (argv[i] + 2, '-'))
4103 fatal ("'-%c' must come at the start of the command line", c);
4111 if (p[1] == 0 && i + 1 == argc)
4112 fatal ("argument to '-B' is missing");
4118 len = strlen (value);
4120 /* Catch the case where the user has forgotten to append a
4121 directory separator to the path. Note, they may be using
4122 -B to add an executable name prefix, eg "i386-elf-", in
4123 order to distinguish between multiple installations of
4124 GCC in the same directory. Hence we must check to see
4125 if appending a directory separator actually makes a
4126 valid directory name. */
4127 if (! IS_DIR_SEPARATOR (value [len - 1])
4128 && is_directory (value, false))
4130 char *tmp = XNEWVEC (char, len + 2);
4131 strcpy (tmp, value);
4132 tmp[len] = DIR_SEPARATOR;
4137 add_prefix (&exec_prefixes, value, NULL,
4138 PREFIX_PRIORITY_B_OPT, 0, 0);
4139 add_prefix (&startfile_prefixes, value, NULL,
4140 PREFIX_PRIORITY_B_OPT, 0, 0);
4141 add_prefix (&include_prefixes, value, NULL,
4142 PREFIX_PRIORITY_B_OPT, 0, 0);
4147 case 'v': /* Print our subcommands and print versions. */
4149 /* If they do anything other than exactly `-v', don't set
4150 verbose_flag; rather, continue on to give the error. */
4169 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
4174 /* Forward scan, just in case -S, -E or -c is specified
4181 if (argv[j][0] == '-')
4183 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
4189 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
4190 j += skip - (argv[j][2] != 0);
4191 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
4198 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4200 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
4202 argv[i] = convert_filename (argv[i], ! have_c, 0);
4204 /* Save the output name in case -save-temps=obj was used. */
4205 if ((p[1] == 0) && argv[i + 1])
4206 save_temps_prefix = xstrdup(argv[i + 1]);
4208 save_temps_prefix = xstrdup(argv[i] + 1);
4214 #ifdef MODIFY_TARGET_NAME
4215 is_modify_target_name = 0;
4217 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4218 if (! strcmp (argv[i], modify_target[j].sw))
4220 char *new_name = XNEWVEC (char, strlen (modify_target[j].str)
4221 + strlen (spec_machine));
4224 int made_addition = 0;
4226 is_modify_target_name = 1;
4227 for (p = spec_machine, q = new_name; *p != 0; )
4229 if (modify_target[j].add_del == DELETE
4230 && (! strncmp (q, modify_target[j].str,
4231 strlen (modify_target[j].str))))
4232 p += strlen (modify_target[j].str);
4233 else if (modify_target[j].add_del == ADD
4234 && ! made_addition && *p == '-')
4236 for (r = modify_target[j].str; *r != 0; )
4244 spec_machine = new_name;
4247 if (is_modify_target_name)
4253 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
4254 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
4255 else if (WORD_SWITCH_TAKES_ARG (p))
4256 i += WORD_SWITCH_TAKES_ARG (p);
4266 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4267 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4268 if (save_temps_flag == SAVE_TEMPS_OBJ && save_temps_prefix != NULL)
4270 save_temps_length = strlen (save_temps_prefix);
4271 temp = strrchr (lbasename (save_temps_prefix), '.');
4274 save_temps_length -= strlen (temp);
4275 save_temps_prefix[save_temps_length] = '\0';
4279 else if (save_temps_prefix != NULL)
4281 free (save_temps_prefix);
4282 save_temps_prefix = NULL;
4285 if (save_temps_flag && use_pipes)
4287 /* -save-temps overrides -pipe, so that temp files are produced */
4288 if (save_temps_flag)
4289 error ("warning: -pipe ignored because -save-temps specified");
4295 const char *gcd = getenv ("GCC_COMPARE_DEBUG");
4297 if (gcd && gcd[0] == '-')
4300 compare_debug_opt = gcd;
4303 else if (gcd && *gcd && strcmp (gcd, "0"))
4306 compare_debug_opt = "-gtoggle";
4310 else if (compare_debug < 0)
4313 gcc_assert (!compare_debug_opt);
4316 /* Set up the search paths. We add directories that we expect to
4317 contain GNU Toolchain components before directories specified by
4318 the machine description so that we will find GNU components (like
4319 the GNU assembler) before those of the host system. */
4321 /* If we don't know where the toolchain has been installed, use the
4322 configured-in locations. */
4323 if (!gcc_exec_prefix)
4326 add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
4327 PREFIX_PRIORITY_LAST, 1, 0);
4328 add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
4329 PREFIX_PRIORITY_LAST, 2, 0);
4330 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
4331 PREFIX_PRIORITY_LAST, 2, 0);
4333 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
4334 PREFIX_PRIORITY_LAST, 1, 0);
4337 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix));
4338 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
4339 dir_separator_str, NULL);
4341 /* Look for tools relative to the location from which the driver is
4342 running, or, if that is not available, the configured prefix. */
4344 = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
4345 spec_machine, dir_separator_str,
4346 spec_version, dir_separator_str, tooldir_prefix, NULL);
4348 add_prefix (&exec_prefixes,
4349 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
4350 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
4351 add_prefix (&startfile_prefixes,
4352 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
4353 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
4355 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4356 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4357 then consider it to relocate with the rest of the GCC installation
4358 if GCC_EXEC_PREFIX is set.
4359 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4360 if (target_system_root && gcc_exec_prefix)
4362 char *tmp_prefix = get_relative_prefix (argv[0],
4363 standard_bindir_prefix,
4364 target_system_root);
4365 if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
4367 target_system_root = tmp_prefix;
4368 target_system_root_changed = 1;
4373 /* More prefixes are enabled in main, after we read the specs file
4374 and determine whether this is cross-compilation or not. */
4376 /* Then create the space for the vectors and scan again. */
4378 switches = XNEWVEC (struct switchstr, n_switches + 1);
4379 infiles = XNEWVEC (struct infile, n_infiles + 1);
4382 last_language_n_infiles = -1;
4384 /* This, time, copy the text of each switch and store a pointer
4385 to the copy in the vector of switches.
4386 Store all the infiles in their vector. */
4388 for (i = 1; i < argc; i++)
4390 /* Just skip the switches that were handled by the preceding loop. */
4391 #ifdef MODIFY_TARGET_NAME
4392 is_modify_target_name = 0;
4394 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4395 if (! strcmp (argv[i], modify_target[j].sw))
4396 is_modify_target_name = 1;
4398 if (is_modify_target_name)
4402 if (! strncmp (argv[i], "-Wa,", 4))
4404 else if (! strncmp (argv[i], "-Wp,", 4))
4406 else if (! strcmp (argv[i], "-no-canonical-prefixes"))
4408 else if (! strcmp (argv[i], "-pass-exit-codes"))
4410 else if (! strcmp (argv[i], "-print-search-dirs"))
4412 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
4414 else if (! strncmp (argv[i], "-print-file-name=", 17))
4416 else if (! strncmp (argv[i], "-print-prog-name=", 17))
4418 else if (! strcmp (argv[i], "-print-multi-lib"))
4420 else if (! strcmp (argv[i], "-print-multi-directory"))
4422 else if (! strcmp (argv[i], "-print-sysroot"))
4424 else if (! strcmp (argv[i], "-print-multi-os-directory"))
4426 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
4428 else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
4430 target_system_root = argv[i] + strlen ("--sysroot=");
4431 target_system_root_changed = 1;
4433 else if (argv[i][0] == '+' && argv[i][1] == 'e')
4435 /* Compensate for the +e options to the C++ front-end;
4436 they're there simply for cfront call-compatibility. We do
4437 some magic in default_compilers to pass them down properly.
4438 Note we deliberately start at the `+' here, to avoid passing
4439 -e0 or -e1 down into the linker. */
4440 switches[n_switches].part1 = &argv[i][0];
4441 switches[n_switches].args = 0;
4442 switches[n_switches].live_cond = 0;
4443 switches[n_switches].validated = 0;
4446 else if (strncmp (argv[i], "-Wl,", 4) == 0)
4449 /* Split the argument at commas. */
4451 for (j = 4; argv[i][j]; j++)
4452 if (argv[i][j] == ',')
4454 infiles[n_infiles].language = "*";
4455 infiles[n_infiles++].name
4456 = save_string (argv[i] + prev, j - prev);
4459 /* Record the part after the last comma. */
4460 infiles[n_infiles].language = "*";
4461 infiles[n_infiles++].name = argv[i] + prev;
4463 else if (strcmp (argv[i], "-Xlinker") == 0)
4465 infiles[n_infiles].language = "*";
4466 infiles[n_infiles++].name = argv[++i];
4468 /* Xassembler and Xpreprocessor were already handled in the first argv
4469 scan, so all we need to do here is ignore them and their argument. */
4470 else if (strcmp (argv[i], "-Xassembler") == 0)
4472 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
4474 else if (strcmp (argv[i], "-l") == 0)
4475 { /* POSIX allows separation of -l and the lib arg;
4476 canonicalize by concatenating -l with its arg */
4477 infiles[n_infiles].language = "*";
4478 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
4480 else if (strncmp (argv[i], "-l", 2) == 0)
4482 infiles[n_infiles].language = "*";
4483 infiles[n_infiles++].name = argv[i];
4485 else if (strcmp (argv[i], "-wrapper") == 0)
4487 else if (strcmp (argv[i], "-specs") == 0)
4489 else if (strncmp (argv[i], "-specs=", 7) == 0)
4491 else if (strcmp (argv[i], "-time") == 0)
4493 else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
4495 else if (strcmp (argv[i], "-###") == 0)
4497 else if (argv[i][0] == '-' && argv[i][1] != 0)
4499 const char *p = &argv[i][1];
4504 if (p[1] == 0 && i + 1 == argc)
4505 fatal ("argument to '-x' is missing");
4507 spec_lang = argv[++i];
4510 if (! strcmp (spec_lang, "none"))
4511 /* Suppress the warning if -xnone comes after the last input
4512 file, because alternate command interfaces like g++ might
4513 find it useful to place -xnone after each input file. */
4516 last_language_n_infiles = n_infiles;
4519 switches[n_switches].part1 = p;
4520 /* Deal with option arguments in separate argv elements. */
4521 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4522 || WORD_SWITCH_TAKES_ARG (p))
4525 int n_args = WORD_SWITCH_TAKES_ARG (p);
4529 /* Count only the option arguments in separate argv elements. */
4530 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4532 if (i + n_args >= argc)
4533 fatal ("argument to '-%s' is missing", p);
4534 switches[n_switches].args
4535 = XNEWVEC (const char *, n_args + 1);
4537 switches[n_switches].args[j++] = argv[++i];
4538 /* Null-terminate the vector. */
4539 switches[n_switches].args[j] = 0;
4541 else if (strchr (switches_need_spaces, c))
4543 /* On some systems, ld cannot handle some options without
4544 a space. So split the option from its argument. */
4545 char *part1 = XNEWVEC (char, 2);
4549 switches[n_switches].part1 = part1;
4550 switches[n_switches].args = XNEWVEC (const char *, 2);
4551 switches[n_switches].args[0] = xstrdup (p+1);
4552 switches[n_switches].args[1] = 0;
4555 switches[n_switches].args = 0;
4557 switches[n_switches].live_cond = 0;
4558 switches[n_switches].validated = 0;
4559 switches[n_switches].ordering = 0;
4560 /* These are always valid, since gcc.c itself understands the
4561 first four, gfortranspec.c understands -static-libgfortran
4562 and g++spec.c understands -static-libstdc++ */
4563 if (!strcmp (p, "save-temps")
4564 || !strcmp (p, "static-libgcc")
4565 || !strcmp (p, "shared-libgcc")
4566 || !strcmp (p, "pipe")
4567 || !strcmp (p, "static-libgfortran")
4568 || !strcmp (p, "static-libstdc++"))
4569 switches[n_switches].validated = 1;
4572 char ch = switches[n_switches].part1[0];
4574 switches[n_switches].validated = 1;
4580 const char *p = strrchr (argv[i], '@');
4584 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4585 argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
4587 /* For LTO static archive support we handle input file
4588 specifications that are composed of a filename and
4589 an offset like FNAME@OFFSET. */
4592 && sscanf (p, "@%li%n", &offset, &consumed) >= 1
4593 && strlen (p) == (unsigned int)consumed)
4595 fname = (char *)xmalloc (p - argv[i] + 1);
4596 memcpy (fname, argv[i], p - argv[i]);
4597 fname[p - argv[i]] = '\0';
4598 /* Only accept non-stdin and existing FNAME parts, otherwise
4599 try with the full name. */
4600 if (strcmp (fname, "-") == 0 || access (fname, F_OK) < 0)
4603 fname = xstrdup (argv[i]);
4607 fname = xstrdup (argv[i]);
4609 if (strcmp (fname, "-") != 0 && access (fname, F_OK) < 0)
4611 perror_with_name (fname);
4616 infiles[n_infiles].language = spec_lang;
4617 infiles[n_infiles++].name = argv[i];
4624 if (n_infiles == last_language_n_infiles && spec_lang != 0)
4625 error ("warning: '-x %s' after last input file has no effect", spec_lang);
4627 if (compare_debug == 2 || compare_debug == 3)
4629 switches[n_switches].part1 = concat ("fcompare-debug=",
4632 switches[n_switches].args = 0;
4633 switches[n_switches].live_cond = 0;
4634 switches[n_switches].validated = 0;
4635 switches[n_switches].ordering = 0;
4640 /* Ensure we only invoke each subprocess once. */
4641 if (print_subprocess_help || print_help_list || print_version)
4645 /* Create a dummy input file, so that we can pass
4646 the help option on to the various sub-processes. */
4647 infiles[0].language = "c";
4648 infiles[0].name = "help-dummy";
4651 switches[n_switches].part1 = 0;
4652 infiles[n_infiles].name = 0;
4655 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4656 and place that in the environment. */
4659 set_collect_gcc_options (void)
4664 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4666 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4667 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4670 for (i = 0; (int) i < n_switches; i++)
4672 const char *const *args;
4675 obstack_grow (&collect_obstack, " ", 1);
4679 /* Ignore elided switches. */
4680 if ((switches[i].live_cond & SWITCH_IGNORE) != 0)
4683 obstack_grow (&collect_obstack, "'-", 2);
4684 q = switches[i].part1;
4685 while ((p = strchr (q, '\'')))
4687 obstack_grow (&collect_obstack, q, p - q);
4688 obstack_grow (&collect_obstack, "'\\''", 4);
4691 obstack_grow (&collect_obstack, q, strlen (q));
4692 obstack_grow (&collect_obstack, "'", 1);
4694 for (args = switches[i].args; args && *args; args++)
4696 obstack_grow (&collect_obstack, " '", 2);
4698 while ((p = strchr (q, '\'')))
4700 obstack_grow (&collect_obstack, q, p - q);
4701 obstack_grow (&collect_obstack, "'\\''", 4);
4704 obstack_grow (&collect_obstack, q, strlen (q));
4705 obstack_grow (&collect_obstack, "'", 1);
4708 obstack_grow (&collect_obstack, "\0", 1);
4709 xputenv (XOBFINISH (&collect_obstack, char *));
4712 /* Process a spec string, accumulating and running commands. */
4714 /* These variables describe the input file name.
4715 input_file_number is the index on outfiles of this file,
4716 so that the output file name can be stored for later use by %o.
4717 input_basename is the start of the part of the input file
4718 sans all directory names, and basename_length is the number
4719 of characters starting there excluding the suffix .c or whatever. */
4721 static const char *input_filename;
4722 static int input_file_number;
4723 size_t input_filename_length;
4724 static int basename_length;
4725 static int suffixed_basename_length;
4726 static const char *input_basename;
4727 static const char *input_suffix;
4728 #ifndef HOST_LACKS_INODE_NUMBERS
4729 static struct stat input_stat;
4731 static int input_stat_set;
4733 /* The compiler used to process the current input file. */
4734 static struct compiler *input_file_compiler;
4736 /* These are variables used within do_spec and do_spec_1. */
4738 /* Nonzero if an arg has been started and not yet terminated
4739 (with space, tab or newline). */
4740 static int arg_going;
4742 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4743 is a temporary file name. */
4744 static int delete_this_arg;
4746 /* Nonzero means %w has been seen; the next arg to be terminated
4747 is the output file name of this compilation. */
4748 static int this_is_output_file;
4750 /* Nonzero means %s has been seen; the next arg to be terminated
4751 is the name of a library file and we should try the standard
4752 search dirs for it. */
4753 static int this_is_library_file;
4755 /* Nonzero means %T has been seen; the next arg to be terminated
4756 is the name of a linker script and we should try all of the
4757 standard search dirs for it. If it is found insert a --script
4758 command line switch and then substitute the full path in place,
4759 otherwise generate an error message. */
4760 static int this_is_linker_script;
4762 /* Nonzero means that the input of this command is coming from a pipe. */
4763 static int input_from_pipe;
4765 /* Nonnull means substitute this for any suffix when outputting a switches
4767 static const char *suffix_subst;
4769 /* If there is an argument being accumulated, terminate it and store it. */
4772 end_going_arg (void)
4778 obstack_1grow (&obstack, 0);
4779 string = XOBFINISH (&obstack, const char *);
4780 if (this_is_library_file)
4781 string = find_file (string);
4782 if (this_is_linker_script)
4784 char * full_script_path = find_a_file (&startfile_prefixes, string, R_OK, true);
4786 if (full_script_path == NULL)
4788 error (_("unable to locate default linker script '%s' in the library search paths"), string);
4789 /* Script was not found on search path. */
4792 store_arg ("--script", false, false);
4793 string = full_script_path;
4795 store_arg (string, delete_this_arg, this_is_output_file);
4796 if (this_is_output_file)
4797 outfiles[input_file_number] = string;
4803 /* Parse the WRAPPER string which is a comma separated list of the command line
4804 and insert them into the beginning of argbuf. */
4807 insert_wrapper (const char *wrapper)
4811 char *buf = xstrdup (wrapper);
4820 while ((p = strchr (p, ',')) != NULL);
4822 if (argbuf_index + n >= argbuf_length)
4824 argbuf_length = argbuf_length * 2;
4825 while (argbuf_length < argbuf_index + n)
4827 argbuf = XRESIZEVEC (const char *, argbuf, argbuf_length);
4829 for (i = argbuf_index - 1; i >= 0; i--)
4830 argbuf[i + n] = argbuf[i];
4843 while ((p = strchr (p, ',')) != NULL);
4844 gcc_assert (i == n);
4848 /* Process the spec SPEC and run the commands specified therein.
4849 Returns 0 if the spec is successfully processed; -1 if failed. */
4852 do_spec (const char *spec)
4856 value = do_spec_2 (spec);
4858 /* Force out any unfinished command.
4859 If -pipe, this forces out the last command if it ended in `|'. */
4862 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4865 set_collect_gcc_options ();
4867 if (argbuf_index > 0)
4875 do_spec_2 (const char *spec)
4881 delete_this_arg = 0;
4882 this_is_output_file = 0;
4883 this_is_library_file = 0;
4884 this_is_linker_script = 0;
4885 input_from_pipe = 0;
4886 suffix_subst = NULL;
4888 result = do_spec_1 (spec, 0, NULL);
4896 /* Process the given spec string and add any new options to the end
4897 of the switches/n_switches array. */
4900 do_option_spec (const char *name, const char *spec)
4902 unsigned int i, value_count, value_len;
4903 const char *p, *q, *value;
4904 char *tmp_spec, *tmp_spec_p;
4906 if (configure_default_options[0].name == NULL)
4909 for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
4910 if (strcmp (configure_default_options[i].name, name) == 0)
4912 if (i == ARRAY_SIZE (configure_default_options))
4915 value = configure_default_options[i].value;
4916 value_len = strlen (value);
4918 /* Compute the size of the final spec. */
4921 while ((p = strstr (p, "%(VALUE)")) != NULL)
4927 /* Replace each %(VALUE) by the specified value. */
4928 tmp_spec = (char *) alloca (strlen (spec) + 1
4929 + value_count * (value_len - strlen ("%(VALUE)")));
4930 tmp_spec_p = tmp_spec;
4932 while ((p = strstr (q, "%(VALUE)")) != NULL)
4934 memcpy (tmp_spec_p, q, p - q);
4935 tmp_spec_p = tmp_spec_p + (p - q);
4936 memcpy (tmp_spec_p, value, value_len);
4937 tmp_spec_p += value_len;
4938 q = p + strlen ("%(VALUE)");
4940 strcpy (tmp_spec_p, q);
4942 do_self_spec (tmp_spec);
4945 /* Process the given spec string and add any new options to the end
4946 of the switches/n_switches array. */
4949 do_self_spec (const char *spec)
4954 do_spec_1 (" ", 0, NULL);
4956 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4957 do_self_specs adds the replacements to switches array, so it shouldn't
4958 be processed afterwards. */
4959 for (i = 0; i < n_switches; i++)
4960 if ((switches[i].live_cond & SWITCH_IGNORE))
4961 switches[i].live_cond |= SWITCH_IGNORE_PERMANENTLY;
4963 if (argbuf_index > 0)
4965 switches = XRESIZEVEC (struct switchstr, switches,
4966 n_switches + argbuf_index + 1);
4968 for (i = 0; i < argbuf_index; i++)
4970 struct switchstr *sw;
4971 const char *p = argbuf[i];
4974 /* Each switch should start with '-'. */
4976 fatal ("switch '%s' does not start with '-'", argbuf[i]);
4981 sw = &switches[n_switches++];
4987 /* Deal with option arguments in separate argv elements. */
4988 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4989 || WORD_SWITCH_TAKES_ARG (p))
4992 int n_args = WORD_SWITCH_TAKES_ARG (p);
4996 /* Count only the option arguments in separate argv elements. */
4997 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4999 if (i + n_args >= argbuf_index)
5000 fatal ("argument to '-%s' is missing", p);
5002 = XNEWVEC (const char *, n_args + 1);
5004 sw->args[j++] = argbuf[++i];
5005 /* Null-terminate the vector. */
5008 else if (strchr (switches_need_spaces, c))
5010 /* On some systems, ld cannot handle some options without
5011 a space. So split the option from its argument. */
5012 char *part1 = XNEWVEC (char, 2);
5017 sw->args = XNEWVEC (const char *, 2);
5018 sw->args[0] = xstrdup (p+1);
5025 switches[n_switches].part1 = 0;
5029 /* Callback for processing %D and %I specs. */
5031 struct spec_path_info {
5036 bool separate_options;
5040 spec_path (char *path, void *data)
5042 struct spec_path_info *info = (struct spec_path_info *) data;
5046 if (info->omit_relative && !IS_ABSOLUTE_PATH (path))
5049 if (info->append_len != 0)
5051 len = strlen (path);
5052 memcpy (path + len, info->append, info->append_len + 1);
5055 if (!is_directory (path, true))
5058 do_spec_1 (info->option, 1, NULL);
5059 if (info->separate_options)
5060 do_spec_1 (" ", 0, NULL);
5062 if (info->append_len == 0)
5064 len = strlen (path);
5065 save = path[len - 1];
5066 if (IS_DIR_SEPARATOR (path[len - 1]))
5067 path[len - 1] = '\0';
5070 do_spec_1 (path, 1, NULL);
5071 do_spec_1 (" ", 0, NULL);
5073 /* Must not damage the original path. */
5074 if (info->append_len == 0)
5075 path[len - 1] = save;
5080 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
5084 create_at_file (char **argv)
5086 char *temp_file = make_temp_file ("");
5087 char *at_argument = concat ("@", temp_file, NULL);
5088 FILE *f = fopen (temp_file, "w");
5092 fatal ("could not open temporary response file %s",
5095 status = writeargv (argv, f);
5098 fatal ("could not write to temporary response file %s",
5101 status = fclose (f);
5104 fatal ("could not close temporary response file %s",
5107 store_arg (at_argument, 0, 0);
5109 record_temp_file (temp_file, !save_temps_flag, !save_temps_flag);
5112 /* True if we should compile INFILE. */
5115 compile_input_file_p (struct infile *infile)
5117 if ((!infile->language) || (infile->language[0] != '*'))
5118 if (infile->incompiler == input_file_compiler)
5123 /* Process the sub-spec SPEC as a portion of a larger spec.
5124 This is like processing a whole spec except that we do
5125 not initialize at the beginning and we do not supply a
5126 newline by default at the end.
5127 INSWITCH nonzero means don't process %-sequences in SPEC;
5128 in this case, % is treated as an ordinary character.
5129 This is used while substituting switches.
5130 INSWITCH nonzero also causes SPC not to terminate an argument.
5132 Value is zero unless a line was finished
5133 and the command on that line reported an error. */
5136 do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
5138 const char *p = spec;
5144 /* If substituting a switch, treat all chars like letters.
5145 Otherwise, NL, SPC, TAB and % are special. */
5146 switch (inswitch ? 'a' : c)
5151 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
5153 /* A `|' before the newline means use a pipe here,
5154 but only if -pipe was specified.
5155 Otherwise, execute now and don't pass the `|' as an arg. */
5158 input_from_pipe = 1;
5165 set_collect_gcc_options ();
5167 if (argbuf_index > 0)
5173 /* Reinitialize for a new command, and for a new argument. */
5176 delete_this_arg = 0;
5177 this_is_output_file = 0;
5178 this_is_library_file = 0;
5179 this_is_linker_script = 0;
5180 input_from_pipe = 0;
5187 obstack_1grow (&obstack, c);
5195 /* Reinitialize for a new argument. */
5196 delete_this_arg = 0;
5197 this_is_output_file = 0;
5198 this_is_library_file = 0;
5199 this_is_linker_script = 0;
5206 fatal ("spec '%s' invalid", spec);
5209 if (save_temps_length)
5210 obstack_grow (&obstack, save_temps_prefix, save_temps_length);
5212 obstack_grow (&obstack, input_basename, basename_length);
5213 if (compare_debug < 0)
5214 obstack_grow (&obstack, ".gk", 3);
5219 if (save_temps_length)
5220 obstack_grow (&obstack, save_temps_prefix, save_temps_length);
5222 obstack_grow (&obstack, input_basename, suffixed_basename_length);
5223 if (compare_debug < 0)
5224 obstack_grow (&obstack, ".gk", 3);
5229 delete_this_arg = 2;
5232 /* Dump out the directories specified with LIBRARY_PATH,
5233 followed by the absolute directories
5234 that we search for startfiles. */
5237 struct spec_path_info info;
5240 info.append_len = 0;
5241 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5242 /* Used on systems which record the specified -L dirs
5243 and use them to search for dynamic linking.
5244 Relative directories always come from -B,
5245 and it is better not to use them for searching
5246 at run time. In particular, stage1 loses. */
5247 info.omit_relative = true;
5249 info.omit_relative = false;
5251 info.separate_options = false;
5253 for_each_path (&startfile_prefixes, true, 0, spec_path, &info);
5258 /* %efoo means report an error with `foo' as error message
5259 and don't execute any more commands for this file. */
5263 while (*p != 0 && *p != '\n')
5265 buf = (char *) alloca (p - q + 1);
5266 strncpy (buf, q, p - q);
5268 error ("%s", _(buf));
5273 /* %nfoo means report a notice with `foo' on stderr. */
5277 while (*p != 0 && *p != '\n')
5279 buf = (char *) alloca (p - q + 1);
5280 strncpy (buf, q, p - q);
5282 notice ("%s\n", _(buf));
5292 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5293 defined, and it is not a directory, and it is
5294 writable, use it. Otherwise, treat this like any
5295 other temporary file. */
5297 if ((!save_temps_flag)
5298 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
5299 && (access (HOST_BIT_BUCKET, W_OK) == 0))
5301 obstack_grow (&obstack, HOST_BIT_BUCKET,
5302 strlen (HOST_BIT_BUCKET));
5303 delete_this_arg = 0;
5308 goto create_temp_file;
5312 obstack_1grow (&obstack, '-');
5313 delete_this_arg = 0;
5316 /* consume suffix */
5317 while (*p == '.' || ISALNUM ((unsigned char) *p))
5319 if (p[0] == '%' && p[1] == 'O')
5324 goto create_temp_file;
5328 /* consume suffix */
5329 while (*p == '.' || ISALNUM ((unsigned char) *p))
5331 if (p[0] == '%' && p[1] == 'O')
5336 goto create_temp_file;
5342 struct temp_name *t;
5344 const char *suffix = p;
5345 char *saved_suffix = NULL;
5347 while (*p == '.' || ISALNUM ((unsigned char) *p))
5349 suffix_length = p - suffix;
5350 if (p[0] == '%' && p[1] == 'O')
5353 /* We don't support extra suffix characters after %O. */
5354 if (*p == '.' || ISALNUM ((unsigned char) *p))
5355 fatal ("spec '%s' has invalid '%%0%c'", spec, *p);
5356 if (suffix_length == 0)
5357 suffix = TARGET_OBJECT_SUFFIX;
5361 = XNEWVEC (char, suffix_length
5362 + strlen (TARGET_OBJECT_SUFFIX));
5363 strncpy (saved_suffix, suffix, suffix_length);
5364 strcpy (saved_suffix + suffix_length,
5365 TARGET_OBJECT_SUFFIX);
5367 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
5370 if (compare_debug < 0)
5372 suffix = concat (".gk", suffix, NULL);
5376 /* If -save-temps=obj and -o were specified, use that for the
5378 if (save_temps_length)
5381 temp_filename_length
5382 = save_temps_length + suffix_length + 1;
5383 tmp = (char *) alloca (temp_filename_length);
5384 memcpy (tmp, save_temps_prefix, save_temps_length);
5385 memcpy (tmp + save_temps_length, suffix, suffix_length);
5386 tmp[save_temps_length + suffix_length] = '\0';
5387 temp_filename = save_string (tmp,
5388 temp_filename_length + 1);
5389 obstack_grow (&obstack, temp_filename,
5390 temp_filename_length);
5392 delete_this_arg = 0;
5396 /* If the input_filename has the same suffix specified
5397 for the %g, %u, or %U, and -save-temps is specified,
5398 we could end up using that file as an intermediate
5399 thus clobbering the user's source file (.e.g.,
5400 gcc -save-temps foo.s would clobber foo.s with the
5401 output of cpp0). So check for this condition and
5402 generate a temp file as the intermediate. */
5404 if (save_temps_flag)
5407 temp_filename_length = basename_length + suffix_length + 1;
5408 tmp = (char *) alloca (temp_filename_length);
5409 memcpy (tmp, input_basename, basename_length);
5410 memcpy (tmp + basename_length, suffix, suffix_length);
5411 tmp[basename_length + suffix_length] = '\0';
5412 temp_filename = tmp;
5414 if (strcmp (temp_filename, input_filename) != 0)
5416 #ifndef HOST_LACKS_INODE_NUMBERS
5417 struct stat st_temp;
5419 /* Note, set_input() resets input_stat_set to 0. */
5420 if (input_stat_set == 0)
5422 input_stat_set = stat (input_filename, &input_stat);
5423 if (input_stat_set >= 0)
5427 /* If we have the stat for the input_filename
5428 and we can do the stat for the temp_filename
5429 then the they could still refer to the same
5430 file if st_dev/st_ino's are the same. */
5431 if (input_stat_set != 1
5432 || stat (temp_filename, &st_temp) < 0
5433 || input_stat.st_dev != st_temp.st_dev
5434 || input_stat.st_ino != st_temp.st_ino)
5436 /* Just compare canonical pathnames. */
5437 char* input_realname = lrealpath (input_filename);
5438 char* temp_realname = lrealpath (temp_filename);
5439 bool files_differ = strcmp (input_realname, temp_realname);
5440 free (input_realname);
5441 free (temp_realname);
5445 temp_filename = save_string (temp_filename,
5446 temp_filename_length + 1);
5447 obstack_grow (&obstack, temp_filename,
5448 temp_filename_length);
5450 delete_this_arg = 0;
5456 /* See if we already have an association of %g/%u/%U and
5458 for (t = temp_names; t; t = t->next)
5459 if (t->length == suffix_length
5460 && strncmp (t->suffix, suffix, suffix_length) == 0
5461 && t->unique == (c == 'u' || c == 'U' || c == 'j'))
5464 /* Make a new association if needed. %u and %j
5466 if (t == 0 || c == 'u' || c == 'j')
5470 t = XNEW (struct temp_name);
5471 t->next = temp_names;
5474 t->length = suffix_length;
5477 t->suffix = saved_suffix;
5478 saved_suffix = NULL;
5481 t->suffix = save_string (suffix, suffix_length);
5482 t->unique = (c == 'u' || c == 'U' || c == 'j');
5483 temp_filename = make_temp_file (t->suffix);
5484 temp_filename_length = strlen (temp_filename);
5485 t->filename = temp_filename;
5486 t->filename_length = temp_filename_length;
5490 free (saved_suffix);
5492 obstack_grow (&obstack, t->filename, t->filename_length);
5493 delete_this_arg = 1;
5501 if (at_file_supplied)
5503 /* We are going to expand `%i' to `@FILE', where FILE
5504 is a newly-created temporary filename. The filenames
5505 that would usually be expanded in place of %o will be
5506 written to the temporary file. */
5511 for (i = 0; i < n_infiles; i++)
5512 if (compile_input_file_p (&infiles[i]))
5515 argv = (char **) alloca (sizeof (char *) * (n_files + 1));
5517 /* Copy the strings over. */
5518 for (i = 0, j = 0; i < n_infiles; i++)
5519 if (compile_input_file_p (&infiles[i]))
5521 argv[j] = CONST_CAST (char *, infiles[i].name);
5522 infiles[i].compiled = true;
5527 create_at_file (argv);
5530 for (i = 0; (int) i < n_infiles; i++)
5531 if (compile_input_file_p (&infiles[i]))
5533 store_arg (infiles[i].name, 0, 0);
5534 infiles[i].compiled = true;
5539 obstack_grow (&obstack, input_filename, input_filename_length);
5546 struct spec_path_info info;
5550 do_spec_1 ("-imultilib", 1, NULL);
5551 /* Make this a separate argument. */
5552 do_spec_1 (" ", 0, NULL);
5553 do_spec_1 (multilib_dir, 1, NULL);
5554 do_spec_1 (" ", 0, NULL);
5557 if (gcc_exec_prefix)
5559 do_spec_1 ("-iprefix", 1, NULL);
5560 /* Make this a separate argument. */
5561 do_spec_1 (" ", 0, NULL);
5562 do_spec_1 (gcc_exec_prefix, 1, NULL);
5563 do_spec_1 (" ", 0, NULL);
5566 if (target_system_root_changed ||
5567 (target_system_root && target_sysroot_hdrs_suffix))
5569 do_spec_1 ("-isysroot", 1, NULL);
5570 /* Make this a separate argument. */
5571 do_spec_1 (" ", 0, NULL);
5572 do_spec_1 (target_system_root, 1, NULL);
5573 if (target_sysroot_hdrs_suffix)
5574 do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
5575 do_spec_1 (" ", 0, NULL);
5578 info.option = "-isystem";
5579 info.append = "include";
5580 info.append_len = strlen (info.append);
5581 info.omit_relative = false;
5582 info.separate_options = true;
5584 for_each_path (&include_prefixes, false, info.append_len,
5587 info.append = "include-fixed";
5588 if (*sysroot_hdrs_suffix_spec)
5589 info.append = concat (info.append, dir_separator_str,
5590 multilib_dir, NULL);
5591 info.append_len = strlen (info.append);
5592 for_each_path (&include_prefixes, false, info.append_len,
5599 int max = n_infiles;
5600 max += lang_specific_extra_outfiles;
5602 if (HAVE_GNU_LD && at_file_supplied)
5604 /* We are going to expand `%o' to `@FILE', where FILE
5605 is a newly-created temporary filename. The filenames
5606 that would usually be expanded in place of %o will be
5607 written to the temporary file. */
5612 /* Convert OUTFILES into a form suitable for writeargv. */
5614 /* Determine how many are non-NULL. */
5615 for (n_files = 0, i = 0; i < max; i++)
5616 n_files += outfiles[i] != NULL;
5618 argv = (char **) alloca (sizeof (char *) * (n_files + 1));
5620 /* Copy the strings over. */
5621 for (i = 0, j = 0; i < max; i++)
5624 argv[j] = CONST_CAST (char *, outfiles[i]);
5629 create_at_file (argv);
5632 for (i = 0; i < max; i++)
5634 store_arg (outfiles[i], 0, 0);
5639 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
5644 this_is_library_file = 1;
5648 this_is_linker_script = 1;
5652 outfiles[input_file_number] = NULL;
5656 this_is_output_file = 1;
5661 int cur_index = argbuf_index;
5662 /* Handle the {...} following the %W. */
5664 fatal ("spec '%s' has invalid '%%W%c", spec, *p);
5665 p = handle_braces (p + 1);
5669 /* If any args were output, mark the last one for deletion
5671 if (argbuf_index != cur_index)
5672 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
5676 /* %x{OPTION} records OPTION for %X to output. */
5682 /* Skip past the option value and make a copy. */
5684 fatal ("spec '%s' has invalid '%%x%c'", spec, *p);
5687 string = save_string (p1 + 1, p - p1 - 2);
5689 /* See if we already recorded this option. */
5690 for (i = 0; i < n_linker_options; i++)
5691 if (! strcmp (string, linker_options[i]))
5697 /* This option is new; add it. */
5698 add_linker_option (string, strlen (string));
5702 /* Dump out the options accumulated previously using %x. */
5704 for (i = 0; i < n_linker_options; i++)
5706 do_spec_1 (linker_options[i], 1, NULL);
5707 /* Make each accumulated option a separate argument. */
5708 do_spec_1 (" ", 0, NULL);
5712 /* Dump out the options accumulated previously using -Wa,. */
5714 for (i = 0; i < n_assembler_options; i++)
5716 do_spec_1 (assembler_options[i], 1, NULL);
5717 /* Make each accumulated option a separate argument. */
5718 do_spec_1 (" ", 0, NULL);
5722 /* Dump out the options accumulated previously using -Wp,. */
5724 for (i = 0; i < n_preprocessor_options; i++)
5726 do_spec_1 (preprocessor_options[i], 1, NULL);
5727 /* Make each accumulated option a separate argument. */
5728 do_spec_1 (" ", 0, NULL);
5732 /* Here are digits and numbers that just process
5733 a certain constant string as a spec. */
5736 value = do_spec_1 (cc1_spec, 0, NULL);
5742 value = do_spec_1 (cc1plus_spec, 0, NULL);
5748 value = do_spec_1 (asm_spec, 0, NULL);
5754 value = do_spec_1 (asm_final_spec, 0, NULL);
5761 const char *const spec
5762 = (input_file_compiler->cpp_spec
5763 ? input_file_compiler->cpp_spec
5765 value = do_spec_1 (spec, 0, NULL);
5772 value = do_spec_1 (endfile_spec, 0, NULL);
5778 value = do_spec_1 (link_spec, 0, NULL);
5784 value = do_spec_1 (lib_spec, 0, NULL);
5790 value = do_spec_1 (libgcc_spec, 0, NULL);
5796 /* We assume there is a directory
5797 separator at the end of this string. */
5798 if (target_system_root)
5800 obstack_grow (&obstack, target_system_root,
5801 strlen (target_system_root));
5802 if (target_sysroot_suffix)
5803 obstack_grow (&obstack, target_sysroot_suffix,
5804 strlen (target_sysroot_suffix));
5809 value = do_spec_1 (startfile_spec, 0, NULL);
5814 /* Here we define characters other than letters and digits. */
5817 p = handle_braces (p);
5823 p = handle_spec_function (p);
5829 obstack_1grow (&obstack, '%');
5836 while (p[len] && p[len] != ' ' && p[len] != '%')
5838 suffix_subst = save_string (p - 1, len + 1);
5843 /* Henceforth ignore the option(s) matching the pattern
5848 int have_wildcard = 0;
5851 while (p[len] && p[len] != ' ' && p[len] != '\t')
5854 if (p[len-1] == '*')
5857 for (i = 0; i < n_switches; i++)
5858 if (!strncmp (switches[i].part1, p, len - have_wildcard)
5859 && (have_wildcard || switches[i].part1[len] == '\0'))
5861 switches[i].live_cond |= SWITCH_IGNORE;
5862 switches[i].validated = 1;
5870 if (soft_matched_part)
5872 do_spec_1 (soft_matched_part, 1, NULL);
5873 do_spec_1 (" ", 0, NULL);
5876 /* Catch the case where a spec string contains something like
5877 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5878 hand side of the :. */
5879 error ("spec failure: '%%*' has not been initialized by pattern match");
5882 /* Process a string found as the value of a spec given by name.
5883 This feature allows individual machine descriptions
5884 to add and use their own specs.
5885 %[...] modifies -D options the way %P does;
5886 %(...) uses the spec unmodified. */
5888 error ("warning: use of obsolete %%[ operator in specs");
5891 const char *name = p;
5892 struct spec_list *sl;
5895 /* The string after the S/P is the name of a spec that is to be
5897 while (*p && *p != ')' && *p != ']')
5900 /* See if it's in the list. */
5901 for (len = p - name, sl = specs; sl; sl = sl->next)
5902 if (sl->name_len == len && !strncmp (sl->name, name, len))
5904 name = *(sl->ptr_spec);
5906 notice ("Processing spec %c%s%c, which is '%s'\n",
5907 c, sl->name, (c == '(') ? ')' : ']', name);
5916 value = do_spec_1 (name, 0, NULL);
5922 char *x = (char *) alloca (strlen (name) * 2 + 1);
5924 const char *y = name;
5927 /* Copy all of NAME into BUF, but put __ after
5928 every -D and at the end of each arg. */
5931 if (! strncmp (y, "-D", 2))
5942 && (*y == ' ' || *y == '\t' || *y == '='
5943 || *y == '}' || *y == 0))
5956 value = do_spec_1 (buf, 0, NULL);
5962 /* Discard the closing paren or bracket. */
5969 error ("spec failure: unrecognized spec option '%c'", c);
5975 /* Backslash: treat next character as ordinary. */
5980 /* Ordinary character: put it into the current argument. */
5981 obstack_1grow (&obstack, c);
5985 /* End of string. If we are processing a spec function, we need to
5986 end any pending argument. */
5987 if (processing_spec_function)
5993 /* Look up a spec function. */
5995 static const struct spec_function *
5996 lookup_spec_function (const char *name)
5998 const struct spec_function *sf;
6000 for (sf = static_spec_functions; sf->name != NULL; sf++)
6001 if (strcmp (sf->name, name) == 0)
6007 /* Evaluate a spec function. */
6010 eval_spec_function (const char *func, const char *args)
6012 const struct spec_function *sf;
6013 const char *funcval;
6015 /* Saved spec processing context. */
6016 int save_argbuf_index;
6017 int save_argbuf_length;
6018 const char **save_argbuf;
6021 int save_delete_this_arg;
6022 int save_this_is_output_file;
6023 int save_this_is_library_file;
6024 int save_input_from_pipe;
6025 int save_this_is_linker_script;
6026 const char *save_suffix_subst;
6029 sf = lookup_spec_function (func);
6031 fatal ("unknown spec function '%s'", func);
6033 /* Push the spec processing context. */
6034 save_argbuf_index = argbuf_index;
6035 save_argbuf_length = argbuf_length;
6036 save_argbuf = argbuf;
6038 save_arg_going = arg_going;
6039 save_delete_this_arg = delete_this_arg;
6040 save_this_is_output_file = this_is_output_file;
6041 save_this_is_library_file = this_is_library_file;
6042 save_this_is_linker_script = this_is_linker_script;
6043 save_input_from_pipe = input_from_pipe;
6044 save_suffix_subst = suffix_subst;
6046 /* Create a new spec processing context, and build the function
6050 if (do_spec_2 (args) < 0)
6051 fatal ("error in args to spec function '%s'", func);
6053 /* argbuf_index is an index for the next argument to be inserted, and
6054 so contains the count of the args already inserted. */
6056 funcval = (*sf->func) (argbuf_index, argbuf);
6058 /* Pop the spec processing context. */
6059 argbuf_index = save_argbuf_index;
6060 argbuf_length = save_argbuf_length;
6062 argbuf = save_argbuf;
6064 arg_going = save_arg_going;
6065 delete_this_arg = save_delete_this_arg;
6066 this_is_output_file = save_this_is_output_file;
6067 this_is_library_file = save_this_is_library_file;
6068 this_is_linker_script = save_this_is_linker_script;
6069 input_from_pipe = save_input_from_pipe;
6070 suffix_subst = save_suffix_subst;
6075 /* Handle a spec function call of the form:
6079 ARGS is processed as a spec in a separate context and split into an
6080 argument vector in the normal fashion. The function returns a string
6081 containing a spec which we then process in the caller's context, or
6082 NULL if no processing is required. */
6085 handle_spec_function (const char *p)
6088 const char *endp, *funcval;
6091 processing_spec_function++;
6093 /* Get the function name. */
6094 for (endp = p; *endp != '\0'; endp++)
6096 if (*endp == '(') /* ) */
6098 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6099 if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
6100 fatal ("malformed spec function name");
6102 if (*endp != '(') /* ) */
6103 fatal ("no arguments for spec function");
6104 func = save_string (p, endp - p);
6107 /* Get the arguments. */
6108 for (count = 0; *endp != '\0'; endp++)
6117 else if (*endp == '(') /* ) */
6122 fatal ("malformed spec function arguments");
6123 args = save_string (p, endp - p);
6126 /* p now points to just past the end of the spec function expression. */
6128 funcval = eval_spec_function (func, args);
6129 if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
6135 processing_spec_function--;
6140 /* Inline subroutine of handle_braces. Returns true if the current
6141 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6143 input_suffix_matches (const char *atom, const char *end_atom)
6145 return (input_suffix
6146 && !strncmp (input_suffix, atom, end_atom - atom)
6147 && input_suffix[end_atom - atom] == '\0');
6150 /* Subroutine of handle_braces. Returns true if the current
6151 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6153 input_spec_matches (const char *atom, const char *end_atom)
6155 return (input_file_compiler
6156 && input_file_compiler->suffix
6157 && input_file_compiler->suffix[0] != '\0'
6158 && !strncmp (input_file_compiler->suffix + 1, atom,
6160 && input_file_compiler->suffix[end_atom - atom + 1] == '\0');
6163 /* Subroutine of handle_braces. Returns true if a switch
6164 matching the atom bracketed by ATOM and END_ATOM appeared on the
6167 switch_matches (const char *atom, const char *end_atom, int starred)
6170 int len = end_atom - atom;
6171 int plen = starred ? len : -1;
6173 for (i = 0; i < n_switches; i++)
6174 if (!strncmp (switches[i].part1, atom, len)
6175 && (starred || switches[i].part1[len] == '\0')
6176 && check_live_switch (i, plen))
6182 /* Inline subroutine of handle_braces. Mark all of the switches which
6183 match ATOM (extends to END_ATOM; STARRED indicates whether there
6184 was a star after the atom) for later processing. */
6186 mark_matching_switches (const char *atom, const char *end_atom, int starred)
6189 int len = end_atom - atom;
6190 int plen = starred ? len : -1;
6192 for (i = 0; i < n_switches; i++)
6193 if (!strncmp (switches[i].part1, atom, len)
6194 && (starred || switches[i].part1[len] == '\0')
6195 && check_live_switch (i, plen))
6196 switches[i].ordering = 1;
6199 /* Inline subroutine of handle_braces. Process all the currently
6200 marked switches through give_switch, and clear the marks. */
6202 process_marked_switches (void)
6206 for (i = 0; i < n_switches; i++)
6207 if (switches[i].ordering == 1)
6209 switches[i].ordering = 0;
6214 /* Handle a %{ ... } construct. P points just inside the leading {.
6215 Returns a pointer one past the end of the brace block, or 0
6216 if we call do_spec_1 and that returns -1. */
6219 handle_braces (const char *p)
6221 const char *atom, *end_atom;
6222 const char *d_atom = NULL, *d_end_atom = NULL;
6223 const char *orig = p;
6231 bool a_must_be_last = false;
6232 bool ordered_set = false;
6233 bool disjunct_set = false;
6234 bool disj_matched = false;
6235 bool disj_starred = true;
6236 bool n_way_choice = false;
6237 bool n_way_matched = false;
6239 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6246 /* Scan one "atom" (S in the description above of %{}, possibly
6247 with '!', '.', '@', ',', or '*' modifiers). */
6249 a_is_suffix = false;
6250 a_is_starred = false;
6251 a_is_negated = false;
6252 a_is_spectype = false;
6256 p++, a_is_negated = true;
6260 p++, a_is_suffix = true;
6262 p++, a_is_spectype = true;
6265 while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '='
6266 || *p == ',' || *p == '.' || *p == '@')
6271 p++, a_is_starred = 1;
6277 /* Substitute the switch(es) indicated by the current atom. */
6279 if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
6280 || a_is_spectype || atom == end_atom)
6283 mark_matching_switches (atom, end_atom, a_is_starred);
6286 process_marked_switches ();
6290 /* Substitute some text if the current atom appears as a switch
6292 disjunct_set = true;
6296 if (atom == end_atom)
6298 if (!n_way_choice || disj_matched || *p == '|'
6299 || a_is_negated || a_is_suffix || a_is_spectype
6303 /* An empty term may appear as the last choice of an
6304 N-way choice set; it means "otherwise". */
6305 a_must_be_last = true;
6306 disj_matched = !n_way_matched;
6307 disj_starred = false;
6311 if ((a_is_suffix || a_is_spectype) && a_is_starred)
6315 disj_starred = false;
6317 /* Don't bother testing this atom if we already have a
6319 if (!disj_matched && !n_way_matched)
6322 a_matched = input_suffix_matches (atom, end_atom);
6323 else if (a_is_spectype)
6324 a_matched = input_spec_matches (atom, end_atom);
6326 a_matched = switch_matches (atom, end_atom, a_is_starred);
6328 if (a_matched != a_is_negated)
6330 disj_matched = true;
6332 d_end_atom = end_atom;
6339 /* Found the body, that is, the text to substitute if the
6340 current disjunction matches. */
6341 p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
6342 disj_matched && !n_way_matched);
6346 /* If we have an N-way choice, reset state for the next
6350 n_way_choice = true;
6351 n_way_matched |= disj_matched;
6352 disj_matched = false;
6353 disj_starred = true;
6354 d_atom = d_end_atom = NULL;
6363 while (*p++ != '}');
6368 fatal ("braced spec '%s' is invalid at '%c'", orig, *p);
6373 /* Subroutine of handle_braces. Scan and process a brace substitution body
6374 (X in the description of %{} syntax). P points one past the colon;
6375 ATOM and END_ATOM bracket the first atom which was found to be true
6376 (present) in the current disjunction; STARRED indicates whether all
6377 the atoms in the current disjunction were starred (for syntax validation);
6378 MATCHED indicates whether the disjunction matched or not, and therefore
6379 whether or not the body is to be processed through do_spec_1 or just
6380 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6384 process_brace_body (const char *p, const char *atom, const char *end_atom,
6385 int starred, int matched)
6387 const char *body, *end_body;
6388 unsigned int nesting_level;
6389 bool have_subst = false;
6391 /* Locate the closing } or ;, honoring nested braces.
6392 Trim trailing whitespace. */
6401 if (!--nesting_level)
6404 else if (*p == ';' && nesting_level == 1)
6406 else if (*p == '%' && p[1] == '*' && nesting_level == 1)
6408 else if (*p == '\0')
6414 while (end_body[-1] == ' ' || end_body[-1] == '\t')
6417 if (have_subst && !starred)
6422 /* Copy the substitution body to permanent storage and execute it.
6423 If have_subst is false, this is a simple matter of running the
6424 body through do_spec_1... */
6425 char *string = save_string (body, end_body - body);
6428 if (do_spec_1 (string, 0, NULL) < 0)
6433 /* ... but if have_subst is true, we have to process the
6434 body once for each matching switch, with %* set to the
6435 variant part of the switch. */
6436 unsigned int hard_match_len = end_atom - atom;
6439 for (i = 0; i < n_switches; i++)
6440 if (!strncmp (switches[i].part1, atom, hard_match_len)
6441 && check_live_switch (i, hard_match_len))
6443 if (do_spec_1 (string, 0,
6444 &switches[i].part1[hard_match_len]) < 0)
6446 /* Pass any arguments this switch has. */
6448 suffix_subst = NULL;
6456 fatal ("braced spec body '%s' is invalid", body);
6459 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6460 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6461 spec, or -1 if either exact match or %* is used.
6463 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
6464 whose value does not begin with "no-" is obsoleted by the same value
6465 with the "no-", similarly for a switch with the "no-" prefix. */
6468 check_live_switch (int switchnum, int prefix_length)
6470 const char *name = switches[switchnum].part1;
6473 /* If we already processed this switch and determined if it was
6474 live or not, return our past determination. */
6475 if (switches[switchnum].live_cond != 0)
6476 return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0
6477 && (switches[switchnum].live_cond & SWITCH_FALSE) == 0
6478 && (switches[switchnum].live_cond & SWITCH_IGNORE_PERMANENTLY)
6481 /* In the common case of {<at-most-one-letter>*}, a negating
6482 switch would always match, so ignore that case. We will just
6483 send the conflicting switches to the compiler phase. */
6484 if (prefix_length >= 0 && prefix_length <= 1)
6487 /* Now search for duplicate in a manner that depends on the name. */
6491 for (i = switchnum + 1; i < n_switches; i++)
6492 if (switches[i].part1[0] == 'O')
6494 switches[switchnum].validated = 1;
6495 switches[switchnum].live_cond = SWITCH_FALSE;
6500 case 'W': case 'f': case 'm':
6501 if (! strncmp (name + 1, "no-", 3))
6503 /* We have Xno-YYY, search for XYYY. */
6504 for (i = switchnum + 1; i < n_switches; i++)
6505 if (switches[i].part1[0] == name[0]
6506 && ! strcmp (&switches[i].part1[1], &name[4]))
6508 switches[switchnum].validated = 1;
6509 switches[switchnum].live_cond = SWITCH_FALSE;
6515 /* We have XYYY, search for Xno-YYY. */
6516 for (i = switchnum + 1; i < n_switches; i++)
6517 if (switches[i].part1[0] == name[0]
6518 && switches[i].part1[1] == 'n'
6519 && switches[i].part1[2] == 'o'
6520 && switches[i].part1[3] == '-'
6521 && !strcmp (&switches[i].part1[4], &name[1]))
6523 switches[switchnum].validated = 1;
6524 switches[switchnum].live_cond = SWITCH_FALSE;
6531 /* Otherwise the switch is live. */
6532 switches[switchnum].live_cond |= SWITCH_LIVE;
6536 /* Pass a switch to the current accumulating command
6537 in the same form that we received it.
6538 SWITCHNUM identifies the switch; it is an index into
6539 the vector of switches gcc received, which is `switches'.
6540 This cannot fail since it never finishes a command line.
6542 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6545 give_switch (int switchnum, int omit_first_word)
6547 if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0)
6550 if (!omit_first_word)
6552 do_spec_1 ("-", 0, NULL);
6553 do_spec_1 (switches[switchnum].part1, 1, NULL);
6556 if (switches[switchnum].args != 0)
6559 for (p = switches[switchnum].args; *p; p++)
6561 const char *arg = *p;
6563 do_spec_1 (" ", 0, NULL);
6566 unsigned length = strlen (arg);
6569 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
6570 if (arg[length] == '.')
6572 (CONST_CAST(char *, arg))[length] = 0;
6576 do_spec_1 (arg, 1, NULL);
6578 (CONST_CAST(char *, arg))[length] = '.';
6579 do_spec_1 (suffix_subst, 1, NULL);
6582 do_spec_1 (arg, 1, NULL);
6586 do_spec_1 (" ", 0, NULL);
6587 switches[switchnum].validated = 1;
6590 /* Search for a file named NAME trying various prefixes including the
6591 user's -B prefix and some standard ones.
6592 Return the absolute file name found. If nothing is found, return NAME. */
6595 find_file (const char *name)
6597 char *newname = find_a_file (&startfile_prefixes, name, R_OK, true);
6598 return newname ? newname : name;
6601 /* Determine whether a directory exists. If LINKER, return 0 for
6602 certain fixed names not needed by the linker. */
6605 is_directory (const char *path1, bool linker)
6612 /* Ensure the string ends with "/.". The resulting path will be a
6613 directory even if the given path is a symbolic link. */
6614 len1 = strlen (path1);
6615 path = (char *) alloca (3 + len1);
6616 memcpy (path, path1, len1);
6618 if (!IS_DIR_SEPARATOR (cp[-1]))
6619 *cp++ = DIR_SEPARATOR;
6623 /* Exclude directories that the linker is known to search. */
6625 && IS_DIR_SEPARATOR (path[0])
6627 && strncmp (path + 1, "lib", 3) == 0)
6629 && strncmp (path + 1, "usr", 3) == 0
6630 && IS_DIR_SEPARATOR (path[4])
6631 && strncmp (path + 5, "lib", 3) == 0)))
6634 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
6637 /* Set up the various global variables to indicate that we're processing
6638 the input file named FILENAME. */
6641 set_input (const char *filename)
6645 input_filename = filename;
6646 input_filename_length = strlen (input_filename);
6647 input_basename = lbasename (input_filename);
6649 /* Find a suffix starting with the last period,
6650 and set basename_length to exclude that suffix. */
6651 basename_length = strlen (input_basename);
6652 suffixed_basename_length = basename_length;
6653 p = input_basename + basename_length;
6654 while (p != input_basename && *p != '.')
6656 if (*p == '.' && p != input_basename)
6658 basename_length = p - input_basename;
6659 input_suffix = p + 1;
6664 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6665 we will need to do a stat on the input_filename. The
6666 INPUT_STAT_SET signals that the stat is needed. */
6670 /* On fatal signals, delete all the temporary files. */
6673 fatal_error (int signum)
6675 signal (signum, SIG_DFL);
6676 delete_failure_queue ();
6677 delete_temp_files ();
6678 /* Get the same signal again, this time not handled,
6679 so its normal effect occurs. */
6680 kill (getpid (), signum);
6683 /* Compare the contents of the two files named CMPFILE[0] and
6684 CMPFILE[1]. Return zero if they're identical, nonzero
6688 compare_files (char *cmpfile[])
6691 FILE *temp[2] = { NULL, NULL };
6697 void *map[2] = { NULL, NULL };
6699 for (i = 0; i < 2; i++)
6703 if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode))
6705 error ("%s: could not determine length of compare-debug file %s",
6706 input_filename, cmpfile[i]);
6711 length[i] = st.st_size;
6714 if (!ret && length[0] != length[1])
6716 error ("%s: -fcompare-debug failure (length)", input_filename);
6721 for (i = 0; i < 2; i++)
6723 int fd = open (cmpfile[i], O_RDONLY);
6726 error ("%s: could not open compare-debug file %s",
6727 input_filename, cmpfile[i]);
6732 map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0);
6735 if (map[i] == (void *) MAP_FAILED)
6744 if (memcmp (map[0], map[1], length[0]) != 0)
6746 error ("%s: -fcompare-debug failure", input_filename);
6751 for (i = 0; i < 2; i++)
6753 munmap ((caddr_t) map[i], length[i]);
6762 for (i = 0; i < 2; i++)
6764 temp[i] = fopen (cmpfile[i], "r");
6767 error ("%s: could not open compare-debug file %s",
6768 input_filename, cmpfile[i]);
6774 if (!ret && temp[0] && temp[1])
6778 c0 = fgetc (temp[0]);
6779 c1 = fgetc (temp[1]);
6783 error ("%s: -fcompare-debug failure",
6793 for (i = 1; i >= 0; i--)
6802 extern int main (int, char **);
6805 main (int argc, char **argv)
6809 int linker_was_run = 0;
6810 int lang_n_infiles = 0;
6811 int num_linker_inputs = 0;
6812 char *explicit_link_files;
6815 struct user_specs *uptr;
6816 char **old_argv = argv;
6818 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6819 on ?: in file-scope variable initializations. */
6820 asm_debug = ASM_DEBUG_SPEC;
6822 p = argv[0] + strlen (argv[0]);
6823 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
6827 xmalloc_set_program_name (programname);
6829 expandargv (&argc, &argv);
6831 /* Determine if any expansions were made. */
6832 if (argv != old_argv)
6833 at_file_supplied = true;
6835 prune_options (&argc, &argv);
6837 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6838 /* Perform host dependent initialization when needed. */
6839 GCC_DRIVER_HOST_INITIALIZATION;
6842 /* Unlock the stdio streams. */
6843 unlock_std_streams ();
6845 gcc_init_libintl ();
6847 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
6848 signal (SIGINT, fatal_error);
6850 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
6851 signal (SIGHUP, fatal_error);
6853 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
6854 signal (SIGTERM, fatal_error);
6856 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
6857 signal (SIGPIPE, fatal_error);
6860 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6861 receive the signal. A different setting is inheritable */
6862 signal (SIGCHLD, SIG_DFL);
6865 /* Allocate the argument vector. */
6868 obstack_init (&obstack);
6870 /* Build multilib_select, et. al from the separate lines that make up each
6871 multilib selection. */
6873 const char *const *q = multilib_raw;
6876 obstack_init (&multilib_obstack);
6877 while ((p = *q++) != (char *) 0)
6878 obstack_grow (&multilib_obstack, p, strlen (p));
6880 obstack_1grow (&multilib_obstack, 0);
6881 multilib_select = XOBFINISH (&multilib_obstack, const char *);
6883 q = multilib_matches_raw;
6884 while ((p = *q++) != (char *) 0)
6885 obstack_grow (&multilib_obstack, p, strlen (p));
6887 obstack_1grow (&multilib_obstack, 0);
6888 multilib_matches = XOBFINISH (&multilib_obstack, const char *);
6890 q = multilib_exclusions_raw;
6891 while ((p = *q++) != (char *) 0)
6892 obstack_grow (&multilib_obstack, p, strlen (p));
6894 obstack_1grow (&multilib_obstack, 0);
6895 multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
6898 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
6901 obstack_1grow (&multilib_obstack, ' ');
6902 obstack_grow (&multilib_obstack,
6903 multilib_defaults_raw[i],
6904 strlen (multilib_defaults_raw[i]));
6908 obstack_1grow (&multilib_obstack, 0);
6909 multilib_defaults = XOBFINISH (&multilib_obstack, const char *);
6912 #ifdef INIT_ENVIRONMENT
6913 /* Set up any other necessary machine specific environment variables. */
6914 xputenv (INIT_ENVIRONMENT);
6917 /* Make a table of what switches there are (switches, n_switches).
6918 Make a table of specified input files (infiles, n_infiles).
6919 Decode switches that are handled locally. */
6921 process_command (argc, CONST_CAST2 (const char **, char **, argv));
6923 /* Initialize the vector of specs to just the default.
6924 This means one element containing 0s, as a terminator. */
6926 compilers = XNEWVAR (struct compiler, sizeof default_compilers);
6927 memcpy (compilers, default_compilers, sizeof default_compilers);
6928 n_compilers = n_default_compilers;
6930 /* Read specs from a file if there is one. */
6932 machine_suffix = concat (spec_machine, dir_separator_str,
6933 spec_version, dir_separator_str, NULL);
6934 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
6936 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true);
6937 /* Read the specs file unless it is a default one. */
6938 if (specs_file != 0 && strcmp (specs_file, "specs"))
6939 read_specs (specs_file, TRUE);
6943 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6944 for any override of as, ld and libraries. */
6945 specs_file = (char *) alloca (strlen (standard_exec_prefix)
6946 + strlen (just_machine_suffix) + sizeof ("specs"));
6948 strcpy (specs_file, standard_exec_prefix);
6949 strcat (specs_file, just_machine_suffix);
6950 strcat (specs_file, "specs");
6951 if (access (specs_file, R_OK) == 0)
6952 read_specs (specs_file, TRUE);
6954 /* Process any configure-time defaults specified for the command line
6955 options, via OPTION_DEFAULT_SPECS. */
6956 for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
6957 do_option_spec (option_default_specs[i].name,
6958 option_default_specs[i].spec);
6960 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6961 of the command line. */
6963 for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
6964 do_self_spec (driver_self_specs[i]);
6968 enum save_temps save;
6970 if (!compare_debug_second)
6972 n_switches_debug_check[1] = n_switches;
6973 switches_debug_check[1] = XDUPVEC (struct switchstr, switches,
6976 do_self_spec ("%:compare-debug-self-opt()");
6977 n_switches_debug_check[0] = n_switches;
6978 switches_debug_check[0] = switches;
6980 n_switches = n_switches_debug_check[1];
6981 switches = switches_debug_check[1];
6984 /* Avoid crash when computing %j in this early. */
6985 save = save_temps_flag;
6986 save_temps_flag = SAVE_TEMPS_NONE;
6988 compare_debug = -compare_debug;
6989 do_self_spec ("%:compare-debug-self-opt()");
6991 save_temps_flag = save;
6993 if (!compare_debug_second)
6995 n_switches_debug_check[1] = n_switches;
6996 switches_debug_check[1] = switches;
6997 compare_debug = -compare_debug;
6998 n_switches = n_switches_debug_check[0];
6999 switches = switches_debug_check[0];
7003 /* If not cross-compiling, look for executables in the standard
7005 if (*cross_compile == '0')
7007 if (*md_exec_prefix)
7009 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
7010 PREFIX_PRIORITY_LAST, 0, 0);
7014 /* Process sysroot_suffix_spec. */
7015 if (*sysroot_suffix_spec != 0
7016 && do_spec_2 (sysroot_suffix_spec) == 0)
7018 if (argbuf_index > 1)
7019 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
7020 else if (argbuf_index == 1)
7021 target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
7024 #ifdef HAVE_LD_SYSROOT
7025 /* Pass the --sysroot option to the linker, if it supports that. If
7026 there is a sysroot_suffix_spec, it has already been processed by
7027 this point, so target_system_root really is the system root we
7029 if (target_system_root)
7031 obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7032 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
7033 set_spec ("link", XOBFINISH (&obstack, const char *));
7037 /* Process sysroot_hdrs_suffix_spec. */
7038 if (*sysroot_hdrs_suffix_spec != 0
7039 && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
7041 if (argbuf_index > 1)
7042 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7043 else if (argbuf_index == 1)
7044 target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
7047 /* Look for startfiles in the standard places. */
7048 if (*startfile_prefix_spec != 0
7049 && do_spec_2 (startfile_prefix_spec) == 0
7050 && do_spec_1 (" ", 0, NULL) == 0)
7053 for (ndx = 0; ndx < argbuf_index; ndx++)
7054 add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS",
7055 PREFIX_PRIORITY_LAST, 0, 1);
7057 /* We should eventually get rid of all these and stick to
7058 startfile_prefix_spec exclusively. */
7059 else if (*cross_compile == '0' || target_system_root)
7061 if (*md_startfile_prefix)
7062 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
7063 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
7065 if (*md_startfile_prefix_1)
7066 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
7067 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
7069 /* If standard_startfile_prefix is relative, base it on
7070 standard_exec_prefix. This lets us move the installed tree
7071 as a unit. If GCC_EXEC_PREFIX is defined, base
7072 standard_startfile_prefix on that as well.
7074 If the prefix is relative, only search it for native compilers;
7075 otherwise we will search a directory containing host libraries. */
7076 if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
7077 add_sysrooted_prefix (&startfile_prefixes,
7078 standard_startfile_prefix, "BINUTILS",
7079 PREFIX_PRIORITY_LAST, 0, 1);
7080 else if (*cross_compile == '0')
7082 add_prefix (&startfile_prefixes,
7083 concat (gcc_exec_prefix
7084 ? gcc_exec_prefix : standard_exec_prefix,
7086 standard_startfile_prefix, NULL),
7087 NULL, PREFIX_PRIORITY_LAST, 0, 1);
7090 /* Sysrooted prefixes are relocated because target_system_root is
7091 also relocated by gcc_exec_prefix. */
7092 if (*standard_startfile_prefix_1)
7093 add_sysrooted_prefix (&startfile_prefixes,
7094 standard_startfile_prefix_1, "BINUTILS",
7095 PREFIX_PRIORITY_LAST, 0, 1);
7096 if (*standard_startfile_prefix_2)
7097 add_sysrooted_prefix (&startfile_prefixes,
7098 standard_startfile_prefix_2, "BINUTILS",
7099 PREFIX_PRIORITY_LAST, 0, 1);
7102 /* Process any user specified specs in the order given on the command
7104 for (uptr = user_specs_head; uptr; uptr = uptr->next)
7106 char *filename = find_a_file (&startfile_prefixes, uptr->filename,
7108 read_specs (filename ? filename : uptr->filename, FALSE);
7111 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7112 if (gcc_exec_prefix)
7113 gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
7114 spec_version, dir_separator_str, NULL);
7116 /* Now we have the specs.
7117 Set the `valid' bits for switches that match anything in any spec. */
7119 validate_all_switches ();
7121 /* Now that we have the switches and the specs, set
7122 the subdirectory based on the options. */
7123 set_multilib_dir ();
7125 /* Set up to remember the pathname of gcc and any options
7126 needed for collect. We use argv[0] instead of programname because
7127 we need the complete pathname. */
7128 obstack_init (&collect_obstack);
7129 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7130 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
7131 xputenv (XOBFINISH (&collect_obstack, char *));
7133 /* Set up to remember the pathname of the lto wrapper. */
7135 lto_wrapper_spec = find_a_file (&exec_prefixes, "lto-wrapper", X_OK, false);
7136 if (lto_wrapper_spec)
7138 obstack_init (&collect_obstack);
7139 obstack_grow (&collect_obstack, "COLLECT_LTO_WRAPPER=",
7140 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7141 obstack_grow (&collect_obstack, lto_wrapper_spec,
7142 strlen (lto_wrapper_spec) + 1);
7143 xputenv (XOBFINISH (&collect_obstack, char *));
7146 /* Warn about any switches that no pass was interested in. */
7148 for (i = 0; (int) i < n_switches; i++)
7149 if (! switches[i].validated)
7150 error ("unrecognized option '-%s'", switches[i].part1);
7152 /* Obey some of the options. */
7154 if (print_search_dirs)
7156 printf (_("install: %s%s\n"),
7157 gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
7158 gcc_exec_prefix ? "" : machine_suffix);
7159 printf (_("programs: %s\n"),
7160 build_search_list (&exec_prefixes, "", false, false));
7161 printf (_("libraries: %s\n"),
7162 build_search_list (&startfile_prefixes, "", false, true));
7166 if (print_file_name)
7168 printf ("%s\n", find_file (print_file_name));
7172 if (print_prog_name)
7174 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0);
7175 printf ("%s\n", (newname ? newname : print_prog_name));
7179 if (print_multi_lib)
7181 print_multilib_info ();
7185 if (print_multi_directory)
7187 if (multilib_dir == NULL)
7190 printf ("%s\n", multilib_dir);
7196 if (target_system_root)
7198 if (target_sysroot_suffix)
7199 printf ("%s%s\n", target_system_root, target_sysroot_suffix);
7201 printf ("%s\n", target_system_root);
7206 if (print_multi_os_directory)
7208 if (multilib_os_dir == NULL)
7211 printf ("%s\n", multilib_os_dir);
7215 if (print_sysroot_headers_suffix)
7217 if (*sysroot_hdrs_suffix_spec)
7219 printf("%s\n", (target_sysroot_hdrs_suffix
7220 ? target_sysroot_hdrs_suffix
7225 /* The error status indicates that only one set of fixed
7226 headers should be built. */
7227 fatal ("not configured with sysroot headers suffix");
7230 if (print_help_list)
7236 printf (_("\nFor bug reporting instructions, please see:\n"));
7237 printf ("%s.\n", bug_report_url);
7242 /* We do not exit here. Instead we have created a fake input file
7243 called 'help-dummy' which needs to be compiled, and we pass this
7244 on the various sub-processes, along with the --help switch.
7245 Ensure their output appears after ours. */
7246 fputc ('\n', stdout);
7252 printf (_("%s %s%s\n"), programname, pkgversion_string,
7254 printf ("Copyright %s 2010 Free Software Foundation, Inc.\n",
7256 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7257 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7262 /* We do not exit here. We use the same mechanism of --help to print
7263 the version of the sub-processes. */
7264 fputc ('\n', stdout);
7273 notice ("Target: %s\n", spec_machine);
7274 notice ("Configured with: %s\n", configuration_arguments);
7276 #ifdef THREAD_MODEL_SPEC
7277 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7278 but there's no point in doing all this processing just to get
7279 thread_model back. */
7280 obstack_init (&obstack);
7281 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
7282 obstack_1grow (&obstack, '\0');
7283 thrmod = XOBFINISH (&obstack, const char *);
7285 thrmod = thread_model;
7288 notice ("Thread model: %s\n", thrmod);
7290 /* compiler_version is truncated at the first space when initialized
7291 from version string, so truncate version_string at the first space
7292 before comparing. */
7293 for (n = 0; version_string[n]; n++)
7294 if (version_string[n] == ' ')
7297 if (! strncmp (version_string, compiler_version, n)
7298 && compiler_version[n] == 0)
7299 notice ("gcc version %s %s\n", version_string, pkgversion_string);
7301 notice ("gcc driver version %s %sexecuting gcc version %s\n",
7302 version_string, pkgversion_string, compiler_version);
7308 if (n_infiles == added_libraries)
7309 fatal ("no input files");
7311 /* Make a place to record the compiler output file names
7312 that correspond to the input files. */
7315 i += lang_specific_extra_outfiles;
7316 outfiles = XCNEWVEC (const char *, i);
7318 /* Record which files were specified explicitly as link input. */
7320 explicit_link_files = XCNEWVEC (char, n_infiles);
7323 combine_inputs = true;
7325 combine_inputs = false;
7327 for (i = 0; (int) i < n_infiles; i++)
7329 const char *name = infiles[i].name;
7330 struct compiler *compiler = lookup_compiler (name,
7332 infiles[i].language);
7334 if (compiler && !(compiler->combinable))
7335 combine_inputs = false;
7337 if (lang_n_infiles > 0 && compiler != input_file_compiler
7338 && infiles[i].language && infiles[i].language[0] != '*')
7339 infiles[i].incompiler = compiler;
7343 input_file_compiler = compiler;
7344 infiles[i].incompiler = compiler;
7348 /* Since there is no compiler for this input file, assume it is a
7350 explicit_link_files[i] = 1;
7351 infiles[i].incompiler = NULL;
7353 infiles[i].compiled = false;
7354 infiles[i].preprocessed = false;
7357 if (!combine_inputs && have_c && have_o && lang_n_infiles > 1)
7358 fatal ("cannot specify -o with -c, -S or -E with multiple files");
7360 if (combine_flag && save_temps_flag)
7362 bool save_combine_inputs = combine_inputs;
7363 /* Must do a separate pre-processing pass for C & Objective-C files, to
7364 obtain individual .i files. */
7366 combine_inputs = false;
7367 for (i = 0; (int) i < n_infiles; i++)
7369 int this_file_error = 0;
7371 input_file_number = i;
7372 set_input (infiles[i].name);
7373 if (infiles[i].incompiler
7374 && (infiles[i].incompiler)->needs_preprocessing)
7375 input_file_compiler = infiles[i].incompiler;
7379 if (input_file_compiler)
7381 if (input_file_compiler->spec[0] == '#')
7383 error ("%s: %s compiler not installed on this system",
7384 input_filename, &input_file_compiler->spec[1]);
7385 this_file_error = 1;
7389 value = do_spec (input_file_compiler->spec);
7390 infiles[i].preprocessed = true;
7391 if (!have_o_argbuf_index)
7392 fatal ("spec '%s' is invalid", input_file_compiler->spec);
7393 infiles[i].name = argbuf[have_o_argbuf_index];
7394 infiles[i].incompiler
7395 = lookup_compiler (infiles[i].name,
7396 strlen (infiles[i].name),
7397 infiles[i].language);
7400 this_file_error = 1;
7404 if (this_file_error)
7406 delete_failure_queue ();
7410 clear_failure_queue ();
7412 combine_inputs = save_combine_inputs;
7415 for (i = 0; (int) i < n_infiles; i++)
7417 int this_file_error = 0;
7419 /* Tell do_spec what to substitute for %i. */
7421 input_file_number = i;
7422 set_input (infiles[i].name);
7424 if (infiles[i].compiled)
7427 /* Use the same thing in %o, unless cp->spec says otherwise. */
7429 outfiles[i] = input_filename;
7431 /* Figure out which compiler from the file's suffix. */
7433 if (! combine_inputs)
7435 = lookup_compiler (infiles[i].name, input_filename_length,
7436 infiles[i].language);
7438 input_file_compiler = infiles[i].incompiler;
7440 if (input_file_compiler)
7442 /* Ok, we found an applicable compiler. Run its spec. */
7444 if (input_file_compiler->spec[0] == '#')
7446 error ("%s: %s compiler not installed on this system",
7447 input_filename, &input_file_compiler->spec[1]);
7448 this_file_error = 1;
7454 if (debug_check_temp_file[0])
7455 free (debug_check_temp_file[0]);
7456 debug_check_temp_file[0] = NULL;
7458 if (debug_check_temp_file[1])
7459 free (debug_check_temp_file[1]);
7460 debug_check_temp_file[1] = NULL;
7463 value = do_spec (input_file_compiler->spec);
7464 infiles[i].compiled = true;
7466 this_file_error = 1;
7467 else if (compare_debug && debug_check_temp_file[0])
7470 error ("Recompiling with -fcompare-debug");
7472 compare_debug = -compare_debug;
7473 n_switches = n_switches_debug_check[1];
7474 switches = switches_debug_check[1];
7476 value = do_spec (input_file_compiler->spec);
7478 compare_debug = -compare_debug;
7479 n_switches = n_switches_debug_check[0];
7480 switches = switches_debug_check[0];
7484 error ("during -fcompare-debug recompilation");
7485 this_file_error = 1;
7488 gcc_assert (debug_check_temp_file[1]
7489 && strcmp (debug_check_temp_file[0],
7490 debug_check_temp_file[1]));
7493 error ("Comparing final insns dumps");
7495 if (compare_files (debug_check_temp_file))
7496 this_file_error = 1;
7501 if (debug_check_temp_file[0])
7502 free (debug_check_temp_file[0]);
7503 debug_check_temp_file[0] = NULL;
7505 if (debug_check_temp_file[1])
7506 free (debug_check_temp_file[1]);
7507 debug_check_temp_file[1] = NULL;
7512 /* If this file's name does not contain a recognized suffix,
7513 record it as explicit linker input. */
7516 explicit_link_files[i] = 1;
7518 /* Clear the delete-on-failure queue, deleting the files in it
7519 if this compilation failed. */
7521 if (this_file_error)
7523 delete_failure_queue ();
7526 /* If this compilation succeeded, don't delete those files later. */
7527 clear_failure_queue ();
7530 /* Reset the input file name to the first compile/object file name, for use
7531 with %b in LINK_SPEC. We use the first input file that we can find
7532 a compiler to compile it instead of using infiles.language since for
7533 languages other than C we use aliases that we then lookup later. */
7538 for (i = 0; i < n_infiles ; i++)
7539 if (infiles[i].language && infiles[i].language[0] != '*')
7541 set_input (infiles[i].name);
7546 if (error_count == 0)
7548 /* Make sure INPUT_FILE_NUMBER points to first available open
7550 input_file_number = n_infiles;
7551 if (lang_specific_pre_link ())
7555 /* Determine if there are any linker input files. */
7556 num_linker_inputs = 0;
7557 for (i = 0; (int) i < n_infiles; i++)
7558 if (explicit_link_files[i] || outfiles[i] != NULL)
7559 num_linker_inputs++;
7561 /* Run ld to link all the compiler output files. */
7563 if (num_linker_inputs > 0 && error_count == 0 && print_subprocess_help < 2)
7565 int tmp = execution_count;
7566 const char *fuse_linker_plugin = "fuse-linker-plugin";
7568 /* We'll use ld if we can't find collect2. */
7569 if (! strcmp (linker_name_spec, "collect2"))
7571 char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
7573 linker_name_spec = "ld";
7576 if (switch_matches (fuse_linker_plugin,
7577 fuse_linker_plugin + strlen (fuse_linker_plugin), 0))
7579 linker_plugin_file_spec = find_a_file (&exec_prefixes,
7580 "liblto_plugin.so", X_OK,
7582 if (!linker_plugin_file_spec)
7583 fatal ("-fuse-linker-plugin, but liblto_plugin.so not found");
7585 lto_libgcc_spec = find_a_file (&startfile_prefixes, "libgcc.a",
7587 if (!lto_libgcc_spec)
7588 fatal ("could not find libgcc.a");
7590 lto_gcc_spec = argv[0];
7592 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7594 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false);
7595 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true);
7597 if (print_subprocess_help == 1)
7599 printf (_("\nLinker options\n==============\n\n"));
7600 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7601 " to the linker.\n\n"));
7604 value = do_spec (link_command_spec);
7607 linker_was_run = (tmp != execution_count);
7610 /* If options said don't run linker,
7611 complain about input files to be given to the linker. */
7613 if (! linker_was_run && error_count == 0)
7614 for (i = 0; (int) i < n_infiles; i++)
7615 if (explicit_link_files[i]
7616 && !(infiles[i].language && infiles[i].language[0] == '*'))
7617 error ("%s: linker input file unused because linking not done",
7620 /* Delete some or all of the temporary files we made. */
7623 delete_failure_queue ();
7624 delete_temp_files ();
7626 if (print_help_list)
7628 printf (("\nFor bug reporting instructions, please see:\n"));
7629 printf ("%s\n", bug_report_url);
7632 return (signal_count != 0 ? 2
7633 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
7637 /* Find the proper compilation spec for the file name NAME,
7638 whose length is LENGTH. LANGUAGE is the specified language,
7639 or 0 if this file is to be passed to the linker. */
7641 static struct compiler *
7642 lookup_compiler (const char *name, size_t length, const char *language)
7644 struct compiler *cp;
7646 /* If this was specified by the user to be a linker input, indicate that. */
7647 if (language != 0 && language[0] == '*')
7650 /* Otherwise, look for the language, if one is spec'd. */
7653 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7654 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
7657 error ("language %s not recognized", language);
7661 /* Look for a suffix. */
7662 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7664 if (/* The suffix `-' matches only the file name `-'. */
7665 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
7666 || (strlen (cp->suffix) < length
7667 /* See if the suffix matches the end of NAME. */
7668 && !strcmp (cp->suffix,
7669 name + length - strlen (cp->suffix))
7674 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7675 /* Look again, but case-insensitively this time. */
7677 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7679 if (/* The suffix `-' matches only the file name `-'. */
7680 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
7681 || (strlen (cp->suffix) < length
7682 /* See if the suffix matches the end of NAME. */
7683 && ((!strcmp (cp->suffix,
7684 name + length - strlen (cp->suffix))
7685 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7686 && !strcasecmp (cp->suffix,
7687 name + length - strlen (cp->suffix)))
7693 if (cp >= compilers)
7695 if (cp->spec[0] != '@')
7696 /* A non-alias entry: return it. */
7699 /* An alias entry maps a suffix to a language.
7700 Search for the language; pass 0 for NAME and LENGTH
7701 to avoid infinite recursion if language not found. */
7702 return lookup_compiler (NULL, 0, cp->spec + 1);
7708 save_string (const char *s, int len)
7710 char *result = XNEWVEC (char, len + 1);
7712 memcpy (result, s, len);
7718 pfatal_with_name (const char *name)
7720 perror_with_name (name);
7721 delete_temp_files ();
7726 perror_with_name (const char *name)
7728 error ("%s: %s", name, xstrerror (errno));
7731 /* Output an error message and exit. */
7734 fancy_abort (const char *file, int line, const char *func)
7736 fatal_ice ("internal gcc abort in %s, at %s:%d", func, file, line);
7739 /* Output an error message and exit. */
7742 fatal_ice (const char *cmsgid, ...)
7746 va_start (ap, cmsgid);
7748 fprintf (stderr, "%s: ", programname);
7749 vfprintf (stderr, _(cmsgid), ap);
7751 fprintf (stderr, "\n");
7752 delete_temp_files ();
7753 exit (pass_exit_codes ? ICE_EXIT_CODE : 1);
7757 fatal (const char *cmsgid, ...)
7761 va_start (ap, cmsgid);
7763 fprintf (stderr, "%s: ", programname);
7764 vfprintf (stderr, _(cmsgid), ap);
7766 fprintf (stderr, "\n");
7767 delete_temp_files ();
7771 /* The argument is actually c-format, not gcc-internal-format,
7772 but because functions with identical names are used through
7773 the rest of the compiler with gcc-internal-format, we just
7774 need to hope all users of these functions use the common
7775 subset between c-format and gcc-internal-format. */
7778 error (const char *gmsgid, ...)
7782 va_start (ap, gmsgid);
7783 fprintf (stderr, "%s: ", programname);
7784 vfprintf (stderr, _(gmsgid), ap);
7787 fprintf (stderr, "\n");
7791 notice (const char *cmsgid, ...)
7795 va_start (ap, cmsgid);
7796 vfprintf (stderr, _(cmsgid), ap);
7801 validate_switches_from_spec (const char *spec)
7803 const char *p = spec;
7806 if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{')))
7807 /* We have a switch spec. */
7808 p = validate_switches (p + 1);
7812 validate_all_switches (void)
7814 struct compiler *comp;
7815 struct spec_list *spec;
7817 for (comp = compilers; comp->spec; comp++)
7818 validate_switches_from_spec (comp->spec);
7820 /* Look through the linked list of specs read from the specs file. */
7821 for (spec = specs; spec; spec = spec->next)
7822 validate_switches_from_spec (*spec->ptr_spec);
7824 validate_switches_from_spec (link_command_spec);
7827 /* Look at the switch-name that comes after START
7828 and mark as valid all supplied switches that match it. */
7831 validate_switches (const char *start)
7833 const char *p = start;
7837 bool suffix = false;
7838 bool starred = false;
7840 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7849 if (*p == '.' || *p == ',')
7853 while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
7854 || *p == ',' || *p == '.' || *p == '@')
7859 starred = true, p++;
7865 /* Mark all matching switches as valid. */
7866 for (i = 0; i < n_switches; i++)
7867 if (!strncmp (switches[i].part1, atom, len)
7868 && (starred || switches[i].part1[len] == 0))
7869 switches[i].validated = 1;
7873 if (*p && (p[-1] == '|' || p[-1] == '&'))
7876 if (*p && p[-1] == ':')
7878 while (*p && *p != ';' && *p != '}')
7883 if (*p == '{' || *p == '<')
7884 p = validate_switches (p+1);
7885 else if (p[0] == 'W' && p[1] == '{')
7886 p = validate_switches (p+2);
7893 if (*p && p[-1] == ';')
7907 static struct mdswitchstr *mdswitches;
7908 static int n_mdswitches;
7910 /* Check whether a particular argument was used. The first time we
7911 canonicalize the switches to keep only the ones we care about. */
7914 used_arg (const char *p, int len)
7919 const char *replace;
7924 static struct mswitchstr *mswitches;
7925 static int n_mswitches;
7930 struct mswitchstr *matches;
7934 /* Break multilib_matches into the component strings of string
7935 and replacement string. */
7936 for (q = multilib_matches; *q != '\0'; q++)
7941 = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
7943 q = multilib_matches;
7952 fatal ("multilib spec '%s' is invalid", multilib_matches);
7956 matches[i].len = q - matches[i].str;
7958 matches[i].replace = ++q;
7959 while (*q != ';' && *q != '\0')
7962 goto invalid_matches;
7965 matches[i].rep_len = q - matches[i].replace;
7971 /* Now build a list of the replacement string for switches that we care
7972 about. Make sure we allocate at least one entry. This prevents
7973 xmalloc from calling fatal, and prevents us from re-executing this
7976 = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1));
7977 for (i = 0; i < n_switches; i++)
7978 if ((switches[i].live_cond & SWITCH_IGNORE) == 0)
7980 int xlen = strlen (switches[i].part1);
7981 for (j = 0; j < cnt; j++)
7982 if (xlen == matches[j].len
7983 && ! strncmp (switches[i].part1, matches[j].str, xlen))
7985 mswitches[n_mswitches].str = matches[j].replace;
7986 mswitches[n_mswitches].len = matches[j].rep_len;
7987 mswitches[n_mswitches].replace = (char *) 0;
7988 mswitches[n_mswitches].rep_len = 0;
7994 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7995 on the command line nor any options mutually incompatible with
7997 for (i = 0; i < n_mdswitches; i++)
8001 for (q = multilib_options; *q != '\0'; q++)
8007 while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
8008 || strchr (" /", q[mdswitches[i].len]) == NULL)
8010 while (*q != ' ' && *q != '/' && *q != '\0')
8017 if (*q != ' ' && *q != '\0')
8019 while (*r != ' ' && *r != '\0')
8022 while (*q != ' ' && *q != '/' && *q != '\0')
8025 if (used_arg (r, q - r))
8030 mswitches[n_mswitches].str = mdswitches[i].str;
8031 mswitches[n_mswitches].len = mdswitches[i].len;
8032 mswitches[n_mswitches].replace = (char *) 0;
8033 mswitches[n_mswitches].rep_len = 0;
8046 for (i = 0; i < n_mswitches; i++)
8047 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
8054 default_arg (const char *p, int len)
8058 for (i = 0; i < n_mdswitches; i++)
8059 if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
8065 /* Work out the subdirectory to use based on the options. The format of
8066 multilib_select is a list of elements. Each element is a subdirectory
8067 name followed by a list of options followed by a semicolon. The format
8068 of multilib_exclusions is the same, but without the preceding
8069 directory. First gcc will check the exclusions, if none of the options
8070 beginning with an exclamation point are present, and all of the other
8071 options are present, then we will ignore this completely. Passing
8072 that, gcc will consider each multilib_select in turn using the same
8073 rules for matching the options. If a match is found, that subdirectory
8077 set_multilib_dir (void)
8080 unsigned int this_path_len;
8081 const char *this_path, *this_arg;
8082 const char *start, *end;
8084 int ok, ndfltok, first;
8087 start = multilib_defaults;
8088 while (*start == ' ' || *start == '\t')
8090 while (*start != '\0')
8093 while (*start != ' ' && *start != '\t' && *start != '\0')
8095 while (*start == ' ' || *start == '\t')
8103 mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches);
8104 for (start = multilib_defaults; *start != '\0'; start = end + 1)
8106 while (*start == ' ' || *start == '\t')
8112 for (end = start + 1;
8113 *end != ' ' && *end != '\t' && *end != '\0'; end++)
8116 obstack_grow (&multilib_obstack, start, end - start);
8117 obstack_1grow (&multilib_obstack, 0);
8118 mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
8119 mdswitches[i++].len = end - start;
8126 p = multilib_exclusions;
8129 /* Ignore newlines. */
8136 /* Check the arguments. */
8143 fatal ("multilib exclusions '%s' is invalid",
8144 multilib_exclusions);
8154 while (*p != ' ' && *p != ';')
8157 goto invalid_exclusions;
8161 if (*this_arg != '!')
8169 ok = used_arg (this_arg, p - this_arg);
8184 p = multilib_select;
8187 /* Ignore newlines. */
8194 /* Get the initial path. */
8201 fatal ("multilib select '%s' is invalid",
8206 this_path_len = p - this_path;
8208 /* Check the arguments. */
8215 goto invalid_select;
8224 while (*p != ' ' && *p != ';')
8227 goto invalid_select;
8231 if (*this_arg != '!')
8239 /* If this is a default argument, we can just ignore it.
8240 This is true even if this_arg begins with '!'. Beginning
8241 with '!' does not mean that this argument is necessarily
8242 inappropriate for this library: it merely means that
8243 there is a more specific library which uses this
8244 argument. If this argument is a default, we need not
8245 consider that more specific library. */
8246 ok = used_arg (this_arg, p - this_arg);
8253 if (default_arg (this_arg, p - this_arg))
8262 if (this_path_len != 1
8263 || this_path[0] != '.')
8265 char *new_multilib_dir = XNEWVEC (char, this_path_len + 1);
8268 strncpy (new_multilib_dir, this_path, this_path_len);
8269 new_multilib_dir[this_path_len] = '\0';
8270 q = strchr (new_multilib_dir, ':');
8273 multilib_dir = new_multilib_dir;
8280 const char *q = this_path, *end = this_path + this_path_len;
8282 while (q < end && *q != ':')
8286 char *new_multilib_os_dir = XNEWVEC (char, end - q);
8287 memcpy (new_multilib_os_dir, q + 1, end - q - 1);
8288 new_multilib_os_dir[end - q - 1] = '\0';
8289 multilib_os_dir = new_multilib_os_dir;
8297 if (multilib_dir == NULL && multilib_os_dir != NULL
8298 && strcmp (multilib_os_dir, ".") == 0)
8300 free (CONST_CAST (char *, multilib_os_dir));
8301 multilib_os_dir = NULL;
8303 else if (multilib_dir != NULL && multilib_os_dir == NULL)
8304 multilib_os_dir = multilib_dir;
8307 /* Print out the multiple library subdirectory selection
8308 information. This prints out a series of lines. Each line looks
8309 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8310 required. Only the desired options are printed out, the negative
8311 matches. The options are print without a leading dash. There are
8312 no spaces to make it easy to use the information in the shell.
8313 Each subdirectory is printed only once. This assumes the ordering
8314 generated by the genmultilib script. Also, we leave out ones that match
8318 print_multilib_info (void)
8320 const char *p = multilib_select;
8321 const char *last_path = 0, *this_path;
8323 unsigned int last_path_len = 0;
8328 /* Ignore newlines. */
8335 /* Get the initial path. */
8342 fatal ("multilib select '%s' is invalid", multilib_select);
8348 /* When --disable-multilib was used but target defines
8349 MULTILIB_OSDIRNAMES, entries starting with .: are there just
8350 to find multilib_os_dir, so skip them from output. */
8351 if (this_path[0] == '.' && this_path[1] == ':')
8354 /* Check for matches with the multilib_exclusions. We don't bother
8355 with the '!' in either list. If any of the exclusion rules match
8356 all of its options with the select rule, we skip it. */
8358 const char *e = multilib_exclusions;
8359 const char *this_arg;
8364 /* Ignore newlines. */
8371 /* Check the arguments. */
8380 fatal ("multilib exclusion '%s' is invalid",
8381 multilib_exclusions);
8392 while (*e != ' ' && *e != ';')
8395 goto invalid_exclusion;
8403 int len = e - this_arg;
8406 goto invalid_select;
8410 while (*q != ' ' && *q != ';')
8413 goto invalid_select;
8417 if (! strncmp (arg, this_arg,
8418 (len < q - arg) ? q - arg : len)
8419 || default_arg (this_arg, e - this_arg))
8449 /* If this is a duplicate, skip it. */
8450 skip = (last_path != 0
8451 && (unsigned int) (p - this_path) == last_path_len
8452 && ! strncmp (last_path, this_path, last_path_len));
8454 last_path = this_path;
8455 last_path_len = p - this_path;
8458 /* If this directory requires any default arguments, we can skip
8459 it. We will already have printed a directory identical to
8460 this one which does not require that default argument. */
8471 goto invalid_select;
8478 while (*q != ' ' && *q != ';')
8481 goto invalid_select;
8486 && default_arg (arg, q - arg))
8501 for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
8512 goto invalid_select;
8520 use_arg = *p != '!';
8525 while (*p != ' ' && *p != ';')
8528 goto invalid_select;
8540 /* If there are extra options, print them now. */
8541 if (multilib_extra && *multilib_extra)
8543 int print_at = TRUE;
8546 for (q = multilib_extra; *q != '\0'; q++)
8567 /* getenv built-in spec function.
8569 Returns the value of the environment variable given by its first
8570 argument, concatenated with the second argument. If the
8571 environment variable is not defined, a fatal error is issued. */
8574 getenv_spec_function (int argc, const char **argv)
8584 value = getenv (argv[0]);
8586 fatal ("environment variable \"%s\" not defined", argv[0]);
8588 /* We have to escape every character of the environment variable so
8589 they are not interpreted as active spec characters. A
8590 particularly painful case is when we are reading a variable
8591 holding a windows path complete with \ separators. */
8592 len = strlen (value) * 2 + strlen (argv[1]) + 1;
8593 result = XNEWVAR (char, len);
8594 for (ptr = result; *value; ptr += 2)
8600 strcpy (ptr, argv[1]);
8605 /* if-exists built-in spec function.
8607 Checks to see if the file specified by the absolute pathname in
8608 ARGS exists. Returns that pathname if found.
8610 The usual use for this function is to check for a library file
8611 (whose name has been expanded with %s). */
8614 if_exists_spec_function (int argc, const char **argv)
8616 /* Must have only one argument. */
8617 if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
8623 /* if-exists-else built-in spec function.
8625 This is like if-exists, but takes an additional argument which
8626 is returned if the first argument does not exist. */
8629 if_exists_else_spec_function (int argc, const char **argv)
8631 /* Must have exactly two arguments. */
8635 if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
8641 /* replace-outfile built-in spec function.
8643 This looks for the first argument in the outfiles array's name and
8644 replaces it with the second argument. */
8647 replace_outfile_spec_function (int argc, const char **argv)
8650 /* Must have exactly two arguments. */
8654 for (i = 0; i < n_infiles; i++)
8656 if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
8657 outfiles[i] = xstrdup (argv[1]);
8662 /* Given two version numbers, compares the two numbers.
8663 A version number must match the regular expression
8664 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8667 compare_version_strings (const char *v1, const char *v2)
8672 if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8673 REG_EXTENDED | REG_NOSUB) != 0)
8675 rresult = regexec (&r, v1, 0, NULL, 0);
8676 if (rresult == REG_NOMATCH)
8677 fatal ("invalid version number `%s'", v1);
8678 else if (rresult != 0)
8680 rresult = regexec (&r, v2, 0, NULL, 0);
8681 if (rresult == REG_NOMATCH)
8682 fatal ("invalid version number `%s'", v2);
8683 else if (rresult != 0)
8686 return strverscmp (v1, v2);
8690 /* version_compare built-in spec function.
8692 This takes an argument of the following form:
8694 <comparison-op> <arg1> [<arg2>] <switch> <result>
8696 and produces "result" if the comparison evaluates to true,
8697 and nothing if it doesn't.
8699 The supported <comparison-op> values are:
8701 >= true if switch is a later (or same) version than arg1
8703 < true if switch is an earlier version than arg1
8705 >< true if switch is arg1 or later, and earlier than arg2
8706 <> true if switch is earlier than arg1 or is arg2 or later
8708 If the switch is not present, the condition is false unless
8709 the first character of the <comparison-op> is '!'.
8712 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8713 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8716 version_compare_spec_function (int argc, const char **argv)
8720 const char *switch_value = NULL;
8725 fatal ("too few arguments to %%:version-compare");
8726 if (argv[0][0] == '\0')
8728 if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
8730 if (argc != nargs + 3)
8731 fatal ("too many arguments to %%:version-compare");
8733 switch_len = strlen (argv[nargs + 1]);
8734 for (i = 0; i < n_switches; i++)
8735 if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
8736 && check_live_switch (i, switch_len))
8737 switch_value = switches[i].part1 + switch_len;
8739 if (switch_value == NULL)
8743 comp1 = compare_version_strings (switch_value, argv[1]);
8745 comp2 = compare_version_strings (switch_value, argv[2]);
8747 comp2 = -1; /* This value unused. */
8750 switch (argv[0][0] << 8 | argv[0][1])
8752 case '>' << 8 | '=':
8753 result = comp1 >= 0;
8755 case '!' << 8 | '<':
8756 result = comp1 >= 0 || switch_value == NULL;
8761 case '!' << 8 | '>':
8762 result = comp1 < 0 || switch_value == NULL;
8764 case '>' << 8 | '<':
8765 result = comp1 >= 0 && comp2 < 0;
8767 case '<' << 8 | '>':
8768 result = comp1 < 0 || comp2 >= 0;
8772 fatal ("unknown operator '%s' in %%:version-compare", argv[0]);
8777 return argv[nargs + 2];
8780 /* %:include builtin spec function. This differs from %include in that it
8781 can be nested inside a spec, and thus be conditionalized. It takes
8782 one argument, the filename, and looks for it in the startfile path.
8783 The result is always NULL, i.e. an empty expansion. */
8786 include_spec_function (int argc, const char **argv)
8793 file = find_a_file (&startfile_prefixes, argv[0], R_OK, true);
8794 read_specs (file ? file : argv[0], FALSE);
8799 /* %:print-asm-header spec function. Print a banner to say that the
8800 following output is from the assembler. */
8803 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED,
8804 const char **argv ATTRIBUTE_UNUSED)
8806 printf (_("Assembler options\n=================\n\n"));
8807 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8812 /* Compute a timestamp to initialize flag_random_seed. */
8815 get_local_tick (void)
8819 /* Get some more or less random data. */
8820 #ifdef HAVE_GETTIMEOFDAY
8824 gettimeofday (&tv, NULL);
8825 ret = tv.tv_sec * 1000 + tv.tv_usec / 1000;
8829 time_t now = time (NULL);
8831 if (now != (time_t)-1)
8832 ret = (unsigned) now;
8839 /* %:compare-debug-dump-opt spec function. Save the last argument,
8840 expected to be the last -fdump-final-insns option, or generate a
8844 compare_debug_dump_opt_spec_function (int arg,
8845 const char **argv ATTRIBUTE_UNUSED)
8850 static char random_seed[HOST_BITS_PER_WIDE_INT / 4 + 3];
8853 fatal ("too many arguments to %%:compare-debug-dump-opt");
8855 do_spec_2 ("%{fdump-final-insns=*:%*}");
8856 do_spec_1 (" ", 0, NULL);
8858 if (argbuf_index > 0 && strcmp (argv[argbuf_index - 1], "."))
8863 name = xstrdup (argv[argbuf_index - 1]);
8868 const char *ext = NULL;
8870 if (argbuf_index > 0)
8872 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8875 else if (!compare_debug)
8878 do_spec_2 ("%g.gkd");
8880 do_spec_1 (" ", 0, NULL);
8882 gcc_assert (argbuf_index > 0);
8884 name = concat (argbuf[argbuf_index - 1], ext, NULL);
8886 ret = concat ("-fdump-final-insns=", name, NULL);
8889 which = compare_debug < 0;
8890 debug_check_temp_file[which] = name;
8894 unsigned HOST_WIDE_INT value = get_local_tick () ^ getpid ();
8896 sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value);
8900 ret = concat ("%{!frandom-seed=*:-frandom-seed=", random_seed, "} ",
8909 static const char *debug_auxbase_opt;
8911 /* %:compare-debug-self-opt spec function. Expands to the options
8912 that are to be passed in the second compilation of
8916 compare_debug_self_opt_spec_function (int arg,
8917 const char **argv ATTRIBUTE_UNUSED)
8920 fatal ("too many arguments to %%:compare-debug-self-opt");
8922 if (compare_debug >= 0)
8925 do_spec_2 ("%{c|S:%{o*:%*}}");
8926 do_spec_1 (" ", 0, NULL);
8928 if (argbuf_index > 0)
8929 debug_auxbase_opt = concat ("-auxbase-strip ",
8930 argbuf[argbuf_index - 1],
8933 debug_auxbase_opt = NULL;
8936 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8937 %<fdump-final-insns=* -w -S -o %j \
8938 %{!fcompare-debug-second:-fcompare-debug-second} \
8939 ", compare_debug_opt, NULL);
8942 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8943 options that are to be passed in the second compilation of
8944 compare-debug. It expects, as an argument, the basename of the
8945 current input file name, with the .gk suffix appended to it. */
8948 compare_debug_auxbase_opt_spec_function (int arg,
8955 fatal ("too few arguments to %%:compare-debug-auxbase-opt");
8958 fatal ("too many arguments to %%:compare-debug-auxbase-opt");
8960 if (compare_debug >= 0)
8963 len = strlen (argv[0]);
8964 if (len < 3 || strcmp (argv[0] + len - 3, ".gk") != 0)
8965 fatal ("argument to %%:compare-debug-auxbase-opt does not end in .gk");
8967 if (debug_auxbase_opt)
8968 return debug_auxbase_opt;
8970 #define OPT "-auxbase "
8973 name = (char*) xmalloc (sizeof (OPT) + len);
8974 memcpy (name, OPT, sizeof (OPT) - 1);
8975 memcpy (name + sizeof (OPT) - 1, argv[0], len);
8976 name[sizeof (OPT) - 1 + len] = '\0';