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. */
267 static const char *const spec_version = DEFAULT_TARGET_VERSION;
269 /* The target machine. */
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 (_(" -v Display the programs invoked by the compiler\n"), stdout);
3424 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
3425 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3426 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3427 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3428 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3430 -x <language> Specify the language of the following input files\n\
3431 Permissible languages include: c c++ assembler none\n\
3432 'none' means revert to the default behavior of\n\
3433 guessing the language based on the file's extension\n\
3437 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3438 passed on to the various sub-processes invoked by %s. In order to pass\n\
3439 other options on to these processes the -W<letter> options must be used.\n\
3442 /* The rest of the options are displayed by invocations of the various
3447 add_preprocessor_option (const char *option, int len)
3449 n_preprocessor_options++;
3451 if (! preprocessor_options)
3452 preprocessor_options = XNEWVEC (char *, n_preprocessor_options);
3454 preprocessor_options = XRESIZEVEC (char *, preprocessor_options,
3455 n_preprocessor_options);
3457 preprocessor_options [n_preprocessor_options - 1] =
3458 save_string (option, len);
3462 add_assembler_option (const char *option, int len)
3464 n_assembler_options++;
3466 if (! assembler_options)
3467 assembler_options = XNEWVEC (char *, n_assembler_options);
3469 assembler_options = XRESIZEVEC (char *, assembler_options,
3470 n_assembler_options);
3472 assembler_options [n_assembler_options - 1] = save_string (option, len);
3476 add_linker_option (const char *option, int len)
3480 if (! linker_options)
3481 linker_options = XNEWVEC (char *, n_linker_options);
3483 linker_options = XRESIZEVEC (char *, linker_options, n_linker_options);
3485 linker_options [n_linker_options - 1] = save_string (option, len);
3488 /* Create the vector `switches' and its contents.
3489 Store its length in `n_switches'. */
3492 process_command (int argc, const char **argv)
3497 const char *spec_lang = 0;
3498 int last_language_n_infiles;
3499 int lang_n_infiles = 0;
3500 #ifdef MODIFY_TARGET_NAME
3501 int is_modify_target_name;
3504 const char *tooldir_prefix;
3505 char *(*get_relative_prefix) (const char *, const char *,
3506 const char *) = NULL;
3508 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3512 added_libraries = 0;
3514 /* Figure compiler version from version string. */
3516 compiler_version = temp1 = xstrdup (version_string);
3518 for (; *temp1; ++temp1)
3527 /* Convert new-style -- options to old-style. */
3528 translate_options (&argc,
3529 CONST_CAST2 (const char *const **, const char ***,
3532 /* Handle any -no-canonical-prefixes flag early, to assign the function
3533 that builds relative prefixes. This function creates default search
3534 paths that are needed later in normal option handling. */
3536 for (i = 1; i < argc; i++)
3538 if (! strcmp (argv[i], "-no-canonical-prefixes"))
3540 get_relative_prefix = make_relative_prefix_ignore_links;
3544 if (! get_relative_prefix)
3545 get_relative_prefix = make_relative_prefix;
3547 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3548 see if we can create it from the pathname specified in argv[0]. */
3550 gcc_libexec_prefix = standard_libexec_prefix;
3552 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3553 if (!gcc_exec_prefix)
3555 gcc_exec_prefix = get_relative_prefix (argv[0],
3556 standard_bindir_prefix,
3557 standard_exec_prefix);
3558 gcc_libexec_prefix = get_relative_prefix (argv[0],
3559 standard_bindir_prefix,
3560 standard_libexec_prefix);
3561 if (gcc_exec_prefix)
3562 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3566 /* make_relative_prefix requires a program name, but
3567 GCC_EXEC_PREFIX is typically a directory name with a trailing
3568 / (which is ignored by make_relative_prefix), so append a
3570 char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL);
3571 gcc_libexec_prefix = get_relative_prefix (tmp_prefix,
3572 standard_exec_prefix,
3573 standard_libexec_prefix);
3575 /* The path is unrelocated, so fallback to the original setting. */
3576 if (!gcc_libexec_prefix)
3577 gcc_libexec_prefix = standard_libexec_prefix;
3583 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3584 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3585 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3587 /* Do language-specific adjustment/addition of flags. */
3588 lang_specific_driver (&argc,
3589 CONST_CAST2 (const char *const **, const char ***,
3593 if (gcc_exec_prefix)
3595 int len = strlen (gcc_exec_prefix);
3597 if (len > (int) sizeof ("/lib/gcc/") - 1
3598 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3600 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
3601 if (IS_DIR_SEPARATOR (*temp)
3602 && strncmp (temp + 1, "lib", 3) == 0
3603 && IS_DIR_SEPARATOR (temp[4])
3604 && strncmp (temp + 5, "gcc", 3) == 0)
3605 len -= sizeof ("/lib/gcc/") - 1;
3608 set_std_prefix (gcc_exec_prefix, len);
3609 add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
3610 PREFIX_PRIORITY_LAST, 0, 0);
3611 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3612 PREFIX_PRIORITY_LAST, 0, 0);
3615 /* COMPILER_PATH and LIBRARY_PATH have values
3616 that are lists of directory names with colons. */
3618 GET_ENVIRONMENT (temp, "COMPILER_PATH");
3621 const char *startp, *endp;
3622 char *nstore = (char *) alloca (strlen (temp) + 3);
3624 startp = endp = temp;
3627 if (*endp == PATH_SEPARATOR || *endp == 0)
3629 strncpy (nstore, startp, endp - startp);
3631 strcpy (nstore, concat (".", dir_separator_str, NULL));
3632 else if (!IS_DIR_SEPARATOR (endp[-1]))
3634 nstore[endp - startp] = DIR_SEPARATOR;
3635 nstore[endp - startp + 1] = 0;
3638 nstore[endp - startp] = 0;
3639 add_prefix (&exec_prefixes, nstore, 0,
3640 PREFIX_PRIORITY_LAST, 0, 0);
3641 add_prefix (&include_prefixes, nstore, 0,
3642 PREFIX_PRIORITY_LAST, 0, 0);
3645 endp = startp = endp + 1;
3652 GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
3653 if (temp && *cross_compile == '0')
3655 const char *startp, *endp;
3656 char *nstore = (char *) alloca (strlen (temp) + 3);
3658 startp = endp = temp;
3661 if (*endp == PATH_SEPARATOR || *endp == 0)
3663 strncpy (nstore, startp, endp - startp);
3665 strcpy (nstore, concat (".", dir_separator_str, NULL));
3666 else if (!IS_DIR_SEPARATOR (endp[-1]))
3668 nstore[endp - startp] = DIR_SEPARATOR;
3669 nstore[endp - startp + 1] = 0;
3672 nstore[endp - startp] = 0;
3673 add_prefix (&startfile_prefixes, nstore, NULL,
3674 PREFIX_PRIORITY_LAST, 0, 1);
3677 endp = startp = endp + 1;
3684 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3685 GET_ENVIRONMENT (temp, "LPATH");
3686 if (temp && *cross_compile == '0')
3688 const char *startp, *endp;
3689 char *nstore = (char *) alloca (strlen (temp) + 3);
3691 startp = endp = temp;
3694 if (*endp == PATH_SEPARATOR || *endp == 0)
3696 strncpy (nstore, startp, endp - startp);
3698 strcpy (nstore, concat (".", dir_separator_str, NULL));
3699 else if (!IS_DIR_SEPARATOR (endp[-1]))
3701 nstore[endp - startp] = DIR_SEPARATOR;
3702 nstore[endp - startp + 1] = 0;
3705 nstore[endp - startp] = 0;
3706 add_prefix (&startfile_prefixes, nstore, NULL,
3707 PREFIX_PRIORITY_LAST, 0, 1);
3710 endp = startp = endp + 1;
3717 /* Scan argv twice. Here, the first time, just count how many switches
3718 there will be in their vector, and how many input files in theirs.
3719 Here we also parse the switches that cc itself uses (e.g. -v). */
3721 for (i = 1; i < argc; i++)
3723 if (! strcmp (argv[i], "-dumpspecs"))
3725 struct spec_list *sl;
3727 for (sl = specs; sl; sl = sl->next)
3728 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3729 if (link_command_spec)
3730 printf ("*link_command:\n%s\n\n", link_command_spec);
3733 else if (! strcmp (argv[i], "-dumpversion"))
3735 printf ("%s\n", spec_version);
3738 else if (! strcmp (argv[i], "-dumpmachine"))
3740 printf ("%s\n", spec_machine);
3743 else if (strcmp (argv[i], "-fversion") == 0)
3745 /* translate_options () has turned --version into -fversion. */
3748 /* We will be passing a dummy file on to the sub-processes. */
3752 /* CPP driver cannot obtain switch from cc1_options. */
3754 add_preprocessor_option ("--version", strlen ("--version"));
3755 add_assembler_option ("--version", strlen ("--version"));
3756 add_linker_option ("--version", strlen ("--version"));
3758 else if (strcmp (argv[i], "-fhelp") == 0)
3760 /* translate_options () has turned --help into -fhelp. */
3761 print_help_list = 1;
3763 /* We will be passing a dummy file on to the sub-processes. */
3767 /* CPP driver cannot obtain switch from cc1_options. */
3769 add_preprocessor_option ("--help", 6);
3770 add_assembler_option ("--help", 6);
3771 add_linker_option ("--help", 6);
3773 else if (strncmp (argv[i], "-fhelp=", 7) == 0)
3775 /* translate_options () has turned --help into -fhelp. */
3776 print_subprocess_help = 2;
3778 /* We will be passing a dummy file on to the sub-processes. */
3782 else if (strcmp (argv[i], "-ftarget-help") == 0)
3784 /* translate_options() has turned --target-help into -ftarget-help. */
3785 print_subprocess_help = 1;
3787 /* We will be passing a dummy file on to the sub-processes. */
3791 /* CPP driver cannot obtain switch from cc1_options. */
3793 add_preprocessor_option ("--target-help", 13);
3794 add_assembler_option ("--target-help", 13);
3795 add_linker_option ("--target-help", 13);
3797 else if (! strcmp (argv[i], "-pass-exit-codes"))
3799 pass_exit_codes = 1;
3802 else if (! strcmp (argv[i], "-print-search-dirs"))
3803 print_search_dirs = 1;
3804 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3805 print_file_name = "libgcc.a";
3806 else if (! strncmp (argv[i], "-print-file-name=", 17))
3807 print_file_name = argv[i] + 17;
3808 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3809 print_prog_name = argv[i] + 17;
3810 else if (! strcmp (argv[i], "-print-multi-lib"))
3811 print_multi_lib = 1;
3812 else if (! strcmp (argv[i], "-print-multi-directory"))
3813 print_multi_directory = 1;
3814 else if (! strcmp (argv[i], "-print-sysroot"))
3816 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3817 print_multi_os_directory = 1;
3818 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
3819 print_sysroot_headers_suffix = 1;
3820 else if (! strcmp (argv[i], "-fcompare-debug-second"))
3822 compare_debug_second = 1;
3825 else if (! strcmp (argv[i], "-fno-compare-debug"))
3827 argv[i] = "-fcompare-debug=";
3828 goto compare_debug_with_arg;
3830 else if (! strcmp (argv[i], "-fcompare-debug"))
3832 argv[i] = "-fcompare-debug=-gtoggle";
3833 goto compare_debug_with_arg;
3835 #define OPT "-fcompare-debug="
3836 else if (! strncmp (argv[i], OPT, sizeof (OPT) - 1))
3839 compare_debug_with_arg:
3840 opt = argv[i] + sizeof (OPT) - 1;
3846 if (compare_debug < 0)
3847 compare_debug_opt = NULL;
3849 compare_debug_opt = opt;
3852 else if (! strncmp (argv[i], "-Wa,", 4))
3855 /* Pass the rest of this option to the assembler. */
3857 /* Split the argument at commas. */
3859 for (j = 4; argv[i][j]; j++)
3860 if (argv[i][j] == ',')
3862 add_assembler_option (argv[i] + prev, j - prev);
3866 /* Record the part after the last comma. */
3867 add_assembler_option (argv[i] + prev, j - prev);
3869 else if (! strncmp (argv[i], "-Wp,", 4))
3872 /* Pass the rest of this option to the preprocessor. */
3874 /* Split the argument at commas. */
3876 for (j = 4; argv[i][j]; j++)
3877 if (argv[i][j] == ',')
3879 add_preprocessor_option (argv[i] + prev, j - prev);
3883 /* Record the part after the last comma. */
3884 add_preprocessor_option (argv[i] + prev, j - prev);
3886 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3887 /* The +e options to the C++ front-end. */
3889 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3892 /* Split the argument at commas. */
3893 for (j = 3; argv[i][j]; j++)
3894 n_infiles += (argv[i][j] == ',');
3896 else if (strcmp (argv[i], "-Xlinker") == 0)
3899 fatal ("argument to '-Xlinker' is missing");
3904 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3907 fatal ("argument to '-Xpreprocessor' is missing");
3909 add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
3911 else if (strcmp (argv[i], "-Xassembler") == 0)
3914 fatal ("argument to '-Xassembler' is missing");
3916 add_assembler_option (argv[i+1], strlen (argv[i+1]));
3918 else if (strcmp (argv[i], "-l") == 0)
3921 fatal ("argument to '-l' is missing");
3926 else if (strncmp (argv[i], "-l", 2) == 0)
3928 else if (strcmp (argv[i], "-save-temps") == 0)
3930 save_temps_flag = SAVE_TEMPS_CWD;
3933 else if (strncmp (argv[i], "-save-temps=", 12) == 0)
3936 if (strcmp (argv[i]+12, "cwd") == 0)
3937 save_temps_flag = SAVE_TEMPS_CWD;
3938 else if (strcmp (argv[i]+12, "obj") == 0
3939 || strcmp (argv[i]+12, "object") == 0)
3940 save_temps_flag = SAVE_TEMPS_OBJ;
3942 fatal ("'%s' is an unknown -save-temps option", argv[i]);
3944 else if (strcmp (argv[i], "-no-canonical-prefixes") == 0)
3945 /* Already handled as a special case, so ignored here. */
3947 else if (strcmp (argv[i], "-combine") == 0)
3952 else if (strcmp (argv[i], "-specs") == 0)
3954 struct user_specs *user = XNEW (struct user_specs);
3956 fatal ("argument to '-specs' is missing");
3958 user->next = (struct user_specs *) 0;
3959 user->filename = argv[i];
3960 if (user_specs_tail)
3961 user_specs_tail->next = user;
3963 user_specs_head = user;
3964 user_specs_tail = user;
3966 else if (strncmp (argv[i], "-specs=", 7) == 0)
3968 struct user_specs *user = XNEW (struct user_specs);
3969 if (strlen (argv[i]) == 7)
3970 fatal ("argument to '-specs=' is missing");
3972 user->next = (struct user_specs *) 0;
3973 user->filename = argv[i] + 7;
3974 if (user_specs_tail)
3975 user_specs_tail->next = user;
3977 user_specs_head = user;
3978 user_specs_tail = user;
3980 else if (strcmp (argv[i], "-time") == 0)
3982 else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
3984 if (report_times_to_file)
3985 fclose (report_times_to_file);
3986 report_times_to_file = fopen (argv[i] + sizeof ("-time=") - 1, "a");
3988 else if (strcmp (argv[i], "-pipe") == 0)
3990 /* -pipe has to go into the switches array as well as
3995 else if (strcmp (argv[i], "-wrapper") == 0)
3998 fatal ("argument to '-wrapper' is missing");
4000 wrapper_string = argv[i];
4004 else if (strcmp (argv[i], "-###") == 0)
4006 /* This is similar to -v except that there is no execution
4007 of the commands and the echoed arguments are quoted. It
4008 is intended for use in shell scripts to capture the
4009 driver-generated command line. */
4010 verbose_only_flag++;
4013 else if (argv[i][0] == '-' && argv[i][1] != 0)
4015 const char *p = &argv[i][1];
4025 if (p[1] == 0 && i + 1 == argc)
4026 fatal ("argument to '-B' is missing");
4032 len = strlen (value);
4034 /* Catch the case where the user has forgotten to append a
4035 directory separator to the path. Note, they may be using
4036 -B to add an executable name prefix, eg "i386-elf-", in
4037 order to distinguish between multiple installations of
4038 GCC in the same directory. Hence we must check to see
4039 if appending a directory separator actually makes a
4040 valid directory name. */
4041 if (! IS_DIR_SEPARATOR (value [len - 1])
4042 && is_directory (value, false))
4044 char *tmp = XNEWVEC (char, len + 2);
4045 strcpy (tmp, value);
4046 tmp[len] = DIR_SEPARATOR;
4051 add_prefix (&exec_prefixes, value, NULL,
4052 PREFIX_PRIORITY_B_OPT, 0, 0);
4053 add_prefix (&startfile_prefixes, value, NULL,
4054 PREFIX_PRIORITY_B_OPT, 0, 0);
4055 add_prefix (&include_prefixes, value, NULL,
4056 PREFIX_PRIORITY_B_OPT, 0, 0);
4061 case 'v': /* Print our subcommands and print versions. */
4063 /* If they do anything other than exactly `-v', don't set
4064 verbose_flag; rather, continue on to give the error. */
4083 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
4088 /* Forward scan, just in case -S, -E or -c is specified
4095 if (argv[j][0] == '-')
4097 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
4103 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
4104 j += skip - (argv[j][2] != 0);
4105 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
4112 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4114 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
4116 argv[i] = convert_filename (argv[i], ! have_c, 0);
4118 /* Save the output name in case -save-temps=obj was used. */
4119 if ((p[1] == 0) && argv[i + 1])
4120 save_temps_prefix = xstrdup(argv[i + 1]);
4122 save_temps_prefix = xstrdup(argv[i] + 1);
4128 #ifdef MODIFY_TARGET_NAME
4129 is_modify_target_name = 0;
4131 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4132 if (! strcmp (argv[i], modify_target[j].sw))
4134 char *new_name = XNEWVEC (char, strlen (modify_target[j].str)
4135 + strlen (spec_machine));
4138 int made_addition = 0;
4140 is_modify_target_name = 1;
4141 for (p = spec_machine, q = new_name; *p != 0; )
4143 if (modify_target[j].add_del == DELETE
4144 && (! strncmp (q, modify_target[j].str,
4145 strlen (modify_target[j].str))))
4146 p += strlen (modify_target[j].str);
4147 else if (modify_target[j].add_del == ADD
4148 && ! made_addition && *p == '-')
4150 for (r = modify_target[j].str; *r != 0; )
4158 spec_machine = new_name;
4161 if (is_modify_target_name)
4167 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
4168 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
4169 else if (WORD_SWITCH_TAKES_ARG (p))
4170 i += WORD_SWITCH_TAKES_ARG (p);
4180 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4181 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4182 if (save_temps_flag == SAVE_TEMPS_OBJ && save_temps_prefix != NULL)
4184 save_temps_length = strlen (save_temps_prefix);
4185 temp = strrchr (lbasename (save_temps_prefix), '.');
4188 save_temps_length -= strlen (temp);
4189 save_temps_prefix[save_temps_length] = '\0';
4193 else if (save_temps_prefix != NULL)
4195 free (save_temps_prefix);
4196 save_temps_prefix = NULL;
4199 if (save_temps_flag && use_pipes)
4201 /* -save-temps overrides -pipe, so that temp files are produced */
4202 if (save_temps_flag)
4203 error ("warning: -pipe ignored because -save-temps specified");
4209 const char *gcd = getenv ("GCC_COMPARE_DEBUG");
4211 if (gcd && gcd[0] == '-')
4214 compare_debug_opt = gcd;
4217 else if (gcd && *gcd && strcmp (gcd, "0"))
4220 compare_debug_opt = "-gtoggle";
4224 else if (compare_debug < 0)
4227 gcc_assert (!compare_debug_opt);
4230 /* Set up the search paths. We add directories that we expect to
4231 contain GNU Toolchain components before directories specified by
4232 the machine description so that we will find GNU components (like
4233 the GNU assembler) before those of the host system. */
4235 /* If we don't know where the toolchain has been installed, use the
4236 configured-in locations. */
4237 if (!gcc_exec_prefix)
4240 add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
4241 PREFIX_PRIORITY_LAST, 1, 0);
4242 add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
4243 PREFIX_PRIORITY_LAST, 2, 0);
4244 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
4245 PREFIX_PRIORITY_LAST, 2, 0);
4247 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
4248 PREFIX_PRIORITY_LAST, 1, 0);
4251 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix));
4252 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
4253 dir_separator_str, NULL);
4255 /* Look for tools relative to the location from which the driver is
4256 running, or, if that is not available, the configured prefix. */
4258 = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
4259 spec_machine, dir_separator_str,
4260 spec_version, dir_separator_str, tooldir_prefix, NULL);
4262 add_prefix (&exec_prefixes,
4263 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
4264 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
4265 add_prefix (&startfile_prefixes,
4266 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
4267 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
4269 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4270 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4271 then consider it to relocate with the rest of the GCC installation
4272 if GCC_EXEC_PREFIX is set.
4273 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4274 if (target_system_root && gcc_exec_prefix)
4276 char *tmp_prefix = get_relative_prefix (argv[0],
4277 standard_bindir_prefix,
4278 target_system_root);
4279 if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
4281 target_system_root = tmp_prefix;
4282 target_system_root_changed = 1;
4287 /* More prefixes are enabled in main, after we read the specs file
4288 and determine whether this is cross-compilation or not. */
4290 /* Then create the space for the vectors and scan again. */
4292 switches = XNEWVEC (struct switchstr, n_switches + 1);
4293 infiles = XNEWVEC (struct infile, n_infiles + 1);
4296 last_language_n_infiles = -1;
4298 /* This, time, copy the text of each switch and store a pointer
4299 to the copy in the vector of switches.
4300 Store all the infiles in their vector. */
4302 for (i = 1; i < argc; i++)
4304 /* Just skip the switches that were handled by the preceding loop. */
4305 #ifdef MODIFY_TARGET_NAME
4306 is_modify_target_name = 0;
4308 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4309 if (! strcmp (argv[i], modify_target[j].sw))
4310 is_modify_target_name = 1;
4312 if (is_modify_target_name)
4316 if (! strncmp (argv[i], "-Wa,", 4))
4318 else if (! strncmp (argv[i], "-Wp,", 4))
4320 else if (! strcmp (argv[i], "-no-canonical-prefixes"))
4322 else if (! strcmp (argv[i], "-pass-exit-codes"))
4324 else if (! strcmp (argv[i], "-print-search-dirs"))
4326 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
4328 else if (! strncmp (argv[i], "-print-file-name=", 17))
4330 else if (! strncmp (argv[i], "-print-prog-name=", 17))
4332 else if (! strcmp (argv[i], "-print-multi-lib"))
4334 else if (! strcmp (argv[i], "-print-multi-directory"))
4336 else if (! strcmp (argv[i], "-print-sysroot"))
4338 else if (! strcmp (argv[i], "-print-multi-os-directory"))
4340 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
4342 else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
4344 target_system_root = argv[i] + strlen ("--sysroot=");
4345 target_system_root_changed = 1;
4347 else if (argv[i][0] == '+' && argv[i][1] == 'e')
4349 /* Compensate for the +e options to the C++ front-end;
4350 they're there simply for cfront call-compatibility. We do
4351 some magic in default_compilers to pass them down properly.
4352 Note we deliberately start at the `+' here, to avoid passing
4353 -e0 or -e1 down into the linker. */
4354 switches[n_switches].part1 = &argv[i][0];
4355 switches[n_switches].args = 0;
4356 switches[n_switches].live_cond = 0;
4357 switches[n_switches].validated = 0;
4360 else if (strncmp (argv[i], "-Wl,", 4) == 0)
4363 /* Split the argument at commas. */
4365 for (j = 4; argv[i][j]; j++)
4366 if (argv[i][j] == ',')
4368 infiles[n_infiles].language = "*";
4369 infiles[n_infiles++].name
4370 = save_string (argv[i] + prev, j - prev);
4373 /* Record the part after the last comma. */
4374 infiles[n_infiles].language = "*";
4375 infiles[n_infiles++].name = argv[i] + prev;
4377 else if (strcmp (argv[i], "-Xlinker") == 0)
4379 infiles[n_infiles].language = "*";
4380 infiles[n_infiles++].name = argv[++i];
4382 /* Xassembler and Xpreprocessor were already handled in the first argv
4383 scan, so all we need to do here is ignore them and their argument. */
4384 else if (strcmp (argv[i], "-Xassembler") == 0)
4386 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
4388 else if (strcmp (argv[i], "-l") == 0)
4389 { /* POSIX allows separation of -l and the lib arg;
4390 canonicalize by concatenating -l with its arg */
4391 infiles[n_infiles].language = "*";
4392 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
4394 else if (strncmp (argv[i], "-l", 2) == 0)
4396 infiles[n_infiles].language = "*";
4397 infiles[n_infiles++].name = argv[i];
4399 else if (strcmp (argv[i], "-wrapper") == 0)
4401 else if (strcmp (argv[i], "-specs") == 0)
4403 else if (strncmp (argv[i], "-specs=", 7) == 0)
4405 else if (strcmp (argv[i], "-time") == 0)
4407 else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
4409 else if (strcmp (argv[i], "-###") == 0)
4411 else if (argv[i][0] == '-' && argv[i][1] != 0)
4413 const char *p = &argv[i][1];
4418 if (p[1] == 0 && i + 1 == argc)
4419 fatal ("argument to '-x' is missing");
4421 spec_lang = argv[++i];
4424 if (! strcmp (spec_lang, "none"))
4425 /* Suppress the warning if -xnone comes after the last input
4426 file, because alternate command interfaces like g++ might
4427 find it useful to place -xnone after each input file. */
4430 last_language_n_infiles = n_infiles;
4433 switches[n_switches].part1 = p;
4434 /* Deal with option arguments in separate argv elements. */
4435 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4436 || WORD_SWITCH_TAKES_ARG (p))
4439 int n_args = WORD_SWITCH_TAKES_ARG (p);
4443 /* Count only the option arguments in separate argv elements. */
4444 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4446 if (i + n_args >= argc)
4447 fatal ("argument to '-%s' is missing", p);
4448 switches[n_switches].args
4449 = XNEWVEC (const char *, n_args + 1);
4451 switches[n_switches].args[j++] = argv[++i];
4452 /* Null-terminate the vector. */
4453 switches[n_switches].args[j] = 0;
4455 else if (strchr (switches_need_spaces, c))
4457 /* On some systems, ld cannot handle some options without
4458 a space. So split the option from its argument. */
4459 char *part1 = XNEWVEC (char, 2);
4463 switches[n_switches].part1 = part1;
4464 switches[n_switches].args = XNEWVEC (const char *, 2);
4465 switches[n_switches].args[0] = xstrdup (p+1);
4466 switches[n_switches].args[1] = 0;
4469 switches[n_switches].args = 0;
4471 switches[n_switches].live_cond = 0;
4472 switches[n_switches].validated = 0;
4473 switches[n_switches].ordering = 0;
4474 /* These are always valid, since gcc.c itself understands the
4475 first four, gfortranspec.c understands -static-libgfortran
4476 and g++spec.c understands -static-libstdc++ */
4477 if (!strcmp (p, "save-temps")
4478 || !strcmp (p, "static-libgcc")
4479 || !strcmp (p, "shared-libgcc")
4480 || !strcmp (p, "pipe")
4481 || !strcmp (p, "static-libgfortran")
4482 || !strcmp (p, "static-libstdc++"))
4483 switches[n_switches].validated = 1;
4486 char ch = switches[n_switches].part1[0];
4488 switches[n_switches].validated = 1;
4494 const char *p = strrchr (argv[i], '@');
4498 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4499 argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
4501 /* For LTO static archive support we handle input file
4502 specifications that are composed of a filename and
4503 an offset like FNAME@OFFSET. */
4506 && sscanf (p, "@%li%n", &offset, &consumed) >= 1
4507 && strlen (p) == (unsigned int)consumed)
4509 fname = (char *)xmalloc (p - argv[i] + 1);
4510 memcpy (fname, argv[i], p - argv[i]);
4511 fname[p - argv[i]] = '\0';
4512 /* Only accept non-stdin and existing FNAME parts, otherwise
4513 try with the full name. */
4514 if (strcmp (fname, "-") == 0 || access (fname, F_OK) < 0)
4517 fname = xstrdup (argv[i]);
4521 fname = xstrdup (argv[i]);
4523 if (strcmp (fname, "-") != 0 && access (fname, F_OK) < 0)
4525 perror_with_name (fname);
4530 infiles[n_infiles].language = spec_lang;
4531 infiles[n_infiles++].name = argv[i];
4538 if (n_infiles == last_language_n_infiles && spec_lang != 0)
4539 error ("warning: '-x %s' after last input file has no effect", spec_lang);
4541 if (compare_debug == 2 || compare_debug == 3)
4543 switches[n_switches].part1 = concat ("fcompare-debug=",
4546 switches[n_switches].args = 0;
4547 switches[n_switches].live_cond = 0;
4548 switches[n_switches].validated = 0;
4549 switches[n_switches].ordering = 0;
4554 /* Ensure we only invoke each subprocess once. */
4555 if (print_subprocess_help || print_help_list || print_version)
4559 /* Create a dummy input file, so that we can pass
4560 the help option on to the various sub-processes. */
4561 infiles[0].language = "c";
4562 infiles[0].name = "help-dummy";
4565 switches[n_switches].part1 = 0;
4566 infiles[n_infiles].name = 0;
4569 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4570 and place that in the environment. */
4573 set_collect_gcc_options (void)
4578 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4580 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4581 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4584 for (i = 0; (int) i < n_switches; i++)
4586 const char *const *args;
4589 obstack_grow (&collect_obstack, " ", 1);
4593 /* Ignore elided switches. */
4594 if ((switches[i].live_cond & SWITCH_IGNORE) != 0)
4597 obstack_grow (&collect_obstack, "'-", 2);
4598 q = switches[i].part1;
4599 while ((p = strchr (q, '\'')))
4601 obstack_grow (&collect_obstack, q, p - q);
4602 obstack_grow (&collect_obstack, "'\\''", 4);
4605 obstack_grow (&collect_obstack, q, strlen (q));
4606 obstack_grow (&collect_obstack, "'", 1);
4608 for (args = switches[i].args; args && *args; args++)
4610 obstack_grow (&collect_obstack, " '", 2);
4612 while ((p = strchr (q, '\'')))
4614 obstack_grow (&collect_obstack, q, p - q);
4615 obstack_grow (&collect_obstack, "'\\''", 4);
4618 obstack_grow (&collect_obstack, q, strlen (q));
4619 obstack_grow (&collect_obstack, "'", 1);
4622 obstack_grow (&collect_obstack, "\0", 1);
4623 xputenv (XOBFINISH (&collect_obstack, char *));
4626 /* Process a spec string, accumulating and running commands. */
4628 /* These variables describe the input file name.
4629 input_file_number is the index on outfiles of this file,
4630 so that the output file name can be stored for later use by %o.
4631 input_basename is the start of the part of the input file
4632 sans all directory names, and basename_length is the number
4633 of characters starting there excluding the suffix .c or whatever. */
4635 static const char *input_filename;
4636 static int input_file_number;
4637 size_t input_filename_length;
4638 static int basename_length;
4639 static int suffixed_basename_length;
4640 static const char *input_basename;
4641 static const char *input_suffix;
4642 #ifndef HOST_LACKS_INODE_NUMBERS
4643 static struct stat input_stat;
4645 static int input_stat_set;
4647 /* The compiler used to process the current input file. */
4648 static struct compiler *input_file_compiler;
4650 /* These are variables used within do_spec and do_spec_1. */
4652 /* Nonzero if an arg has been started and not yet terminated
4653 (with space, tab or newline). */
4654 static int arg_going;
4656 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4657 is a temporary file name. */
4658 static int delete_this_arg;
4660 /* Nonzero means %w has been seen; the next arg to be terminated
4661 is the output file name of this compilation. */
4662 static int this_is_output_file;
4664 /* Nonzero means %s has been seen; the next arg to be terminated
4665 is the name of a library file and we should try the standard
4666 search dirs for it. */
4667 static int this_is_library_file;
4669 /* Nonzero means %T has been seen; the next arg to be terminated
4670 is the name of a linker script and we should try all of the
4671 standard search dirs for it. If it is found insert a --script
4672 command line switch and then substitute the full path in place,
4673 otherwise generate an error message. */
4674 static int this_is_linker_script;
4676 /* Nonzero means that the input of this command is coming from a pipe. */
4677 static int input_from_pipe;
4679 /* Nonnull means substitute this for any suffix when outputting a switches
4681 static const char *suffix_subst;
4683 /* If there is an argument being accumulated, terminate it and store it. */
4686 end_going_arg (void)
4692 obstack_1grow (&obstack, 0);
4693 string = XOBFINISH (&obstack, const char *);
4694 if (this_is_library_file)
4695 string = find_file (string);
4696 if (this_is_linker_script)
4698 char * full_script_path = find_a_file (&startfile_prefixes, string, R_OK, true);
4700 if (full_script_path == NULL)
4702 error (_("unable to locate default linker script '%s' in the library search paths"), string);
4703 /* Script was not found on search path. */
4706 store_arg ("--script", false, false);
4707 string = full_script_path;
4709 store_arg (string, delete_this_arg, this_is_output_file);
4710 if (this_is_output_file)
4711 outfiles[input_file_number] = string;
4717 /* Parse the WRAPPER string which is a comma separated list of the command line
4718 and insert them into the beginning of argbuf. */
4721 insert_wrapper (const char *wrapper)
4725 char *buf = xstrdup (wrapper);
4734 while ((p = strchr (p, ',')) != NULL);
4736 if (argbuf_index + n >= argbuf_length)
4738 argbuf_length = argbuf_length * 2;
4739 while (argbuf_length < argbuf_index + n)
4741 argbuf = XRESIZEVEC (const char *, argbuf, argbuf_length);
4743 for (i = argbuf_index - 1; i >= 0; i--)
4744 argbuf[i + n] = argbuf[i];
4757 while ((p = strchr (p, ',')) != NULL);
4758 gcc_assert (i == n);
4762 /* Process the spec SPEC and run the commands specified therein.
4763 Returns 0 if the spec is successfully processed; -1 if failed. */
4766 do_spec (const char *spec)
4770 value = do_spec_2 (spec);
4772 /* Force out any unfinished command.
4773 If -pipe, this forces out the last command if it ended in `|'. */
4776 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4779 set_collect_gcc_options ();
4781 if (argbuf_index > 0)
4789 do_spec_2 (const char *spec)
4795 delete_this_arg = 0;
4796 this_is_output_file = 0;
4797 this_is_library_file = 0;
4798 this_is_linker_script = 0;
4799 input_from_pipe = 0;
4800 suffix_subst = NULL;
4802 result = do_spec_1 (spec, 0, NULL);
4810 /* Process the given spec string and add any new options to the end
4811 of the switches/n_switches array. */
4814 do_option_spec (const char *name, const char *spec)
4816 unsigned int i, value_count, value_len;
4817 const char *p, *q, *value;
4818 char *tmp_spec, *tmp_spec_p;
4820 if (configure_default_options[0].name == NULL)
4823 for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
4824 if (strcmp (configure_default_options[i].name, name) == 0)
4826 if (i == ARRAY_SIZE (configure_default_options))
4829 value = configure_default_options[i].value;
4830 value_len = strlen (value);
4832 /* Compute the size of the final spec. */
4835 while ((p = strstr (p, "%(VALUE)")) != NULL)
4841 /* Replace each %(VALUE) by the specified value. */
4842 tmp_spec = (char *) alloca (strlen (spec) + 1
4843 + value_count * (value_len - strlen ("%(VALUE)")));
4844 tmp_spec_p = tmp_spec;
4846 while ((p = strstr (q, "%(VALUE)")) != NULL)
4848 memcpy (tmp_spec_p, q, p - q);
4849 tmp_spec_p = tmp_spec_p + (p - q);
4850 memcpy (tmp_spec_p, value, value_len);
4851 tmp_spec_p += value_len;
4852 q = p + strlen ("%(VALUE)");
4854 strcpy (tmp_spec_p, q);
4856 do_self_spec (tmp_spec);
4859 /* Process the given spec string and add any new options to the end
4860 of the switches/n_switches array. */
4863 do_self_spec (const char *spec)
4868 do_spec_1 (" ", 0, NULL);
4870 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4871 do_self_specs adds the replacements to switches array, so it shouldn't
4872 be processed afterwards. */
4873 for (i = 0; i < n_switches; i++)
4874 if ((switches[i].live_cond & SWITCH_IGNORE))
4875 switches[i].live_cond |= SWITCH_IGNORE_PERMANENTLY;
4877 if (argbuf_index > 0)
4879 switches = XRESIZEVEC (struct switchstr, switches,
4880 n_switches + argbuf_index + 1);
4882 for (i = 0; i < argbuf_index; i++)
4884 struct switchstr *sw;
4885 const char *p = argbuf[i];
4888 /* Each switch should start with '-'. */
4890 fatal ("switch '%s' does not start with '-'", argbuf[i]);
4895 sw = &switches[n_switches++];
4901 /* Deal with option arguments in separate argv elements. */
4902 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4903 || WORD_SWITCH_TAKES_ARG (p))
4906 int n_args = WORD_SWITCH_TAKES_ARG (p);
4910 /* Count only the option arguments in separate argv elements. */
4911 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4913 if (i + n_args >= argbuf_index)
4914 fatal ("argument to '-%s' is missing", p);
4916 = XNEWVEC (const char *, n_args + 1);
4918 sw->args[j++] = argbuf[++i];
4919 /* Null-terminate the vector. */
4922 else if (strchr (switches_need_spaces, c))
4924 /* On some systems, ld cannot handle some options without
4925 a space. So split the option from its argument. */
4926 char *part1 = XNEWVEC (char, 2);
4931 sw->args = XNEWVEC (const char *, 2);
4932 sw->args[0] = xstrdup (p+1);
4939 switches[n_switches].part1 = 0;
4943 /* Callback for processing %D and %I specs. */
4945 struct spec_path_info {
4950 bool separate_options;
4954 spec_path (char *path, void *data)
4956 struct spec_path_info *info = (struct spec_path_info *) data;
4960 if (info->omit_relative && !IS_ABSOLUTE_PATH (path))
4963 if (info->append_len != 0)
4965 len = strlen (path);
4966 memcpy (path + len, info->append, info->append_len + 1);
4969 if (!is_directory (path, true))
4972 do_spec_1 (info->option, 1, NULL);
4973 if (info->separate_options)
4974 do_spec_1 (" ", 0, NULL);
4976 if (info->append_len == 0)
4978 len = strlen (path);
4979 save = path[len - 1];
4980 if (IS_DIR_SEPARATOR (path[len - 1]))
4981 path[len - 1] = '\0';
4984 do_spec_1 (path, 1, NULL);
4985 do_spec_1 (" ", 0, NULL);
4987 /* Must not damage the original path. */
4988 if (info->append_len == 0)
4989 path[len - 1] = save;
4994 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4998 create_at_file (char **argv)
5000 char *temp_file = make_temp_file ("");
5001 char *at_argument = concat ("@", temp_file, NULL);
5002 FILE *f = fopen (temp_file, "w");
5006 fatal ("could not open temporary response file %s",
5009 status = writeargv (argv, f);
5012 fatal ("could not write to temporary response file %s",
5015 status = fclose (f);
5018 fatal ("could not close temporary response file %s",
5021 store_arg (at_argument, 0, 0);
5023 record_temp_file (temp_file, !save_temps_flag, !save_temps_flag);
5026 /* True if we should compile INFILE. */
5029 compile_input_file_p (struct infile *infile)
5031 if ((!infile->language) || (infile->language[0] != '*'))
5032 if (infile->incompiler == input_file_compiler)
5037 /* Process the sub-spec SPEC as a portion of a larger spec.
5038 This is like processing a whole spec except that we do
5039 not initialize at the beginning and we do not supply a
5040 newline by default at the end.
5041 INSWITCH nonzero means don't process %-sequences in SPEC;
5042 in this case, % is treated as an ordinary character.
5043 This is used while substituting switches.
5044 INSWITCH nonzero also causes SPC not to terminate an argument.
5046 Value is zero unless a line was finished
5047 and the command on that line reported an error. */
5050 do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
5052 const char *p = spec;
5058 /* If substituting a switch, treat all chars like letters.
5059 Otherwise, NL, SPC, TAB and % are special. */
5060 switch (inswitch ? 'a' : c)
5065 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
5067 /* A `|' before the newline means use a pipe here,
5068 but only if -pipe was specified.
5069 Otherwise, execute now and don't pass the `|' as an arg. */
5072 input_from_pipe = 1;
5079 set_collect_gcc_options ();
5081 if (argbuf_index > 0)
5087 /* Reinitialize for a new command, and for a new argument. */
5090 delete_this_arg = 0;
5091 this_is_output_file = 0;
5092 this_is_library_file = 0;
5093 this_is_linker_script = 0;
5094 input_from_pipe = 0;
5101 obstack_1grow (&obstack, c);
5109 /* Reinitialize for a new argument. */
5110 delete_this_arg = 0;
5111 this_is_output_file = 0;
5112 this_is_library_file = 0;
5113 this_is_linker_script = 0;
5120 fatal ("spec '%s' invalid", spec);
5123 if (save_temps_length)
5124 obstack_grow (&obstack, save_temps_prefix, save_temps_length);
5126 obstack_grow (&obstack, input_basename, basename_length);
5127 if (compare_debug < 0)
5128 obstack_grow (&obstack, ".gk", 3);
5133 if (save_temps_length)
5134 obstack_grow (&obstack, save_temps_prefix, save_temps_length);
5136 obstack_grow (&obstack, input_basename, suffixed_basename_length);
5137 if (compare_debug < 0)
5138 obstack_grow (&obstack, ".gk", 3);
5143 delete_this_arg = 2;
5146 /* Dump out the directories specified with LIBRARY_PATH,
5147 followed by the absolute directories
5148 that we search for startfiles. */
5151 struct spec_path_info info;
5154 info.append_len = 0;
5155 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5156 /* Used on systems which record the specified -L dirs
5157 and use them to search for dynamic linking.
5158 Relative directories always come from -B,
5159 and it is better not to use them for searching
5160 at run time. In particular, stage1 loses. */
5161 info.omit_relative = true;
5163 info.omit_relative = false;
5165 info.separate_options = false;
5167 for_each_path (&startfile_prefixes, true, 0, spec_path, &info);
5172 /* %efoo means report an error with `foo' as error message
5173 and don't execute any more commands for this file. */
5177 while (*p != 0 && *p != '\n')
5179 buf = (char *) alloca (p - q + 1);
5180 strncpy (buf, q, p - q);
5182 error ("%s", _(buf));
5187 /* %nfoo means report a notice with `foo' on stderr. */
5191 while (*p != 0 && *p != '\n')
5193 buf = (char *) alloca (p - q + 1);
5194 strncpy (buf, q, p - q);
5196 notice ("%s\n", _(buf));
5206 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5207 defined, and it is not a directory, and it is
5208 writable, use it. Otherwise, treat this like any
5209 other temporary file. */
5211 if ((!save_temps_flag)
5212 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
5213 && (access (HOST_BIT_BUCKET, W_OK) == 0))
5215 obstack_grow (&obstack, HOST_BIT_BUCKET,
5216 strlen (HOST_BIT_BUCKET));
5217 delete_this_arg = 0;
5222 goto create_temp_file;
5226 obstack_1grow (&obstack, '-');
5227 delete_this_arg = 0;
5230 /* consume suffix */
5231 while (*p == '.' || ISALNUM ((unsigned char) *p))
5233 if (p[0] == '%' && p[1] == 'O')
5238 goto create_temp_file;
5242 /* consume suffix */
5243 while (*p == '.' || ISALNUM ((unsigned char) *p))
5245 if (p[0] == '%' && p[1] == 'O')
5250 goto create_temp_file;
5256 struct temp_name *t;
5258 const char *suffix = p;
5259 char *saved_suffix = NULL;
5261 while (*p == '.' || ISALNUM ((unsigned char) *p))
5263 suffix_length = p - suffix;
5264 if (p[0] == '%' && p[1] == 'O')
5267 /* We don't support extra suffix characters after %O. */
5268 if (*p == '.' || ISALNUM ((unsigned char) *p))
5269 fatal ("spec '%s' has invalid '%%0%c'", spec, *p);
5270 if (suffix_length == 0)
5271 suffix = TARGET_OBJECT_SUFFIX;
5275 = XNEWVEC (char, suffix_length
5276 + strlen (TARGET_OBJECT_SUFFIX));
5277 strncpy (saved_suffix, suffix, suffix_length);
5278 strcpy (saved_suffix + suffix_length,
5279 TARGET_OBJECT_SUFFIX);
5281 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
5284 if (compare_debug < 0)
5286 suffix = concat (".gk", suffix, NULL);
5290 /* If -save-temps=obj and -o were specified, use that for the
5292 if (save_temps_length)
5295 temp_filename_length
5296 = save_temps_length + suffix_length + 1;
5297 tmp = (char *) alloca (temp_filename_length);
5298 memcpy (tmp, save_temps_prefix, save_temps_length);
5299 memcpy (tmp + save_temps_length, suffix, suffix_length);
5300 tmp[save_temps_length + suffix_length] = '\0';
5301 temp_filename = save_string (tmp,
5302 temp_filename_length + 1);
5303 obstack_grow (&obstack, temp_filename,
5304 temp_filename_length);
5306 delete_this_arg = 0;
5310 /* If the input_filename has the same suffix specified
5311 for the %g, %u, or %U, and -save-temps is specified,
5312 we could end up using that file as an intermediate
5313 thus clobbering the user's source file (.e.g.,
5314 gcc -save-temps foo.s would clobber foo.s with the
5315 output of cpp0). So check for this condition and
5316 generate a temp file as the intermediate. */
5318 if (save_temps_flag)
5321 temp_filename_length = basename_length + suffix_length + 1;
5322 tmp = (char *) alloca (temp_filename_length);
5323 memcpy (tmp, input_basename, basename_length);
5324 memcpy (tmp + basename_length, suffix, suffix_length);
5325 tmp[basename_length + suffix_length] = '\0';
5326 temp_filename = tmp;
5328 if (strcmp (temp_filename, input_filename) != 0)
5330 #ifndef HOST_LACKS_INODE_NUMBERS
5331 struct stat st_temp;
5333 /* Note, set_input() resets input_stat_set to 0. */
5334 if (input_stat_set == 0)
5336 input_stat_set = stat (input_filename, &input_stat);
5337 if (input_stat_set >= 0)
5341 /* If we have the stat for the input_filename
5342 and we can do the stat for the temp_filename
5343 then the they could still refer to the same
5344 file if st_dev/st_ino's are the same. */
5345 if (input_stat_set != 1
5346 || stat (temp_filename, &st_temp) < 0
5347 || input_stat.st_dev != st_temp.st_dev
5348 || input_stat.st_ino != st_temp.st_ino)
5350 /* Just compare canonical pathnames. */
5351 char* input_realname = lrealpath (input_filename);
5352 char* temp_realname = lrealpath (temp_filename);
5353 bool files_differ = strcmp (input_realname, temp_realname);
5354 free (input_realname);
5355 free (temp_realname);
5359 temp_filename = save_string (temp_filename,
5360 temp_filename_length + 1);
5361 obstack_grow (&obstack, temp_filename,
5362 temp_filename_length);
5364 delete_this_arg = 0;
5370 /* See if we already have an association of %g/%u/%U and
5372 for (t = temp_names; t; t = t->next)
5373 if (t->length == suffix_length
5374 && strncmp (t->suffix, suffix, suffix_length) == 0
5375 && t->unique == (c == 'u' || c == 'U' || c == 'j'))
5378 /* Make a new association if needed. %u and %j
5380 if (t == 0 || c == 'u' || c == 'j')
5384 t = XNEW (struct temp_name);
5385 t->next = temp_names;
5388 t->length = suffix_length;
5391 t->suffix = saved_suffix;
5392 saved_suffix = NULL;
5395 t->suffix = save_string (suffix, suffix_length);
5396 t->unique = (c == 'u' || c == 'U' || c == 'j');
5397 temp_filename = make_temp_file (t->suffix);
5398 temp_filename_length = strlen (temp_filename);
5399 t->filename = temp_filename;
5400 t->filename_length = temp_filename_length;
5404 free (saved_suffix);
5406 obstack_grow (&obstack, t->filename, t->filename_length);
5407 delete_this_arg = 1;
5415 if (at_file_supplied)
5417 /* We are going to expand `%i' to `@FILE', where FILE
5418 is a newly-created temporary filename. The filenames
5419 that would usually be expanded in place of %o will be
5420 written to the temporary file. */
5425 for (i = 0; i < n_infiles; i++)
5426 if (compile_input_file_p (&infiles[i]))
5429 argv = (char **) alloca (sizeof (char *) * (n_files + 1));
5431 /* Copy the strings over. */
5432 for (i = 0, j = 0; i < n_infiles; i++)
5433 if (compile_input_file_p (&infiles[i]))
5435 argv[j] = CONST_CAST (char *, infiles[i].name);
5436 infiles[i].compiled = true;
5441 create_at_file (argv);
5444 for (i = 0; (int) i < n_infiles; i++)
5445 if (compile_input_file_p (&infiles[i]))
5447 store_arg (infiles[i].name, 0, 0);
5448 infiles[i].compiled = true;
5453 obstack_grow (&obstack, input_filename, input_filename_length);
5460 struct spec_path_info info;
5464 do_spec_1 ("-imultilib", 1, NULL);
5465 /* Make this a separate argument. */
5466 do_spec_1 (" ", 0, NULL);
5467 do_spec_1 (multilib_dir, 1, NULL);
5468 do_spec_1 (" ", 0, NULL);
5471 if (gcc_exec_prefix)
5473 do_spec_1 ("-iprefix", 1, NULL);
5474 /* Make this a separate argument. */
5475 do_spec_1 (" ", 0, NULL);
5476 do_spec_1 (gcc_exec_prefix, 1, NULL);
5477 do_spec_1 (" ", 0, NULL);
5480 if (target_system_root_changed ||
5481 (target_system_root && target_sysroot_hdrs_suffix))
5483 do_spec_1 ("-isysroot", 1, NULL);
5484 /* Make this a separate argument. */
5485 do_spec_1 (" ", 0, NULL);
5486 do_spec_1 (target_system_root, 1, NULL);
5487 if (target_sysroot_hdrs_suffix)
5488 do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
5489 do_spec_1 (" ", 0, NULL);
5492 info.option = "-isystem";
5493 info.append = "include";
5494 info.append_len = strlen (info.append);
5495 info.omit_relative = false;
5496 info.separate_options = true;
5498 for_each_path (&include_prefixes, false, info.append_len,
5501 info.append = "include-fixed";
5502 if (*sysroot_hdrs_suffix_spec)
5503 info.append = concat (info.append, dir_separator_str,
5504 multilib_dir, NULL);
5505 info.append_len = strlen (info.append);
5506 for_each_path (&include_prefixes, false, info.append_len,
5513 int max = n_infiles;
5514 max += lang_specific_extra_outfiles;
5516 if (HAVE_GNU_LD && at_file_supplied)
5518 /* We are going to expand `%o' to `@FILE', where FILE
5519 is a newly-created temporary filename. The filenames
5520 that would usually be expanded in place of %o will be
5521 written to the temporary file. */
5526 /* Convert OUTFILES into a form suitable for writeargv. */
5528 /* Determine how many are non-NULL. */
5529 for (n_files = 0, i = 0; i < max; i++)
5530 n_files += outfiles[i] != NULL;
5532 argv = (char **) alloca (sizeof (char *) * (n_files + 1));
5534 /* Copy the strings over. */
5535 for (i = 0, j = 0; i < max; i++)
5538 argv[j] = CONST_CAST (char *, outfiles[i]);
5543 create_at_file (argv);
5546 for (i = 0; i < max; i++)
5548 store_arg (outfiles[i], 0, 0);
5553 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
5558 this_is_library_file = 1;
5562 this_is_linker_script = 1;
5566 outfiles[input_file_number] = NULL;
5570 this_is_output_file = 1;
5575 int cur_index = argbuf_index;
5576 /* Handle the {...} following the %W. */
5578 fatal ("spec '%s' has invalid '%%W%c", spec, *p);
5579 p = handle_braces (p + 1);
5583 /* If any args were output, mark the last one for deletion
5585 if (argbuf_index != cur_index)
5586 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
5590 /* %x{OPTION} records OPTION for %X to output. */
5596 /* Skip past the option value and make a copy. */
5598 fatal ("spec '%s' has invalid '%%x%c'", spec, *p);
5601 string = save_string (p1 + 1, p - p1 - 2);
5603 /* See if we already recorded this option. */
5604 for (i = 0; i < n_linker_options; i++)
5605 if (! strcmp (string, linker_options[i]))
5611 /* This option is new; add it. */
5612 add_linker_option (string, strlen (string));
5616 /* Dump out the options accumulated previously using %x. */
5618 for (i = 0; i < n_linker_options; i++)
5620 do_spec_1 (linker_options[i], 1, NULL);
5621 /* Make each accumulated option a separate argument. */
5622 do_spec_1 (" ", 0, NULL);
5626 /* Dump out the options accumulated previously using -Wa,. */
5628 for (i = 0; i < n_assembler_options; i++)
5630 do_spec_1 (assembler_options[i], 1, NULL);
5631 /* Make each accumulated option a separate argument. */
5632 do_spec_1 (" ", 0, NULL);
5636 /* Dump out the options accumulated previously using -Wp,. */
5638 for (i = 0; i < n_preprocessor_options; i++)
5640 do_spec_1 (preprocessor_options[i], 1, NULL);
5641 /* Make each accumulated option a separate argument. */
5642 do_spec_1 (" ", 0, NULL);
5646 /* Here are digits and numbers that just process
5647 a certain constant string as a spec. */
5650 value = do_spec_1 (cc1_spec, 0, NULL);
5656 value = do_spec_1 (cc1plus_spec, 0, NULL);
5662 value = do_spec_1 (asm_spec, 0, NULL);
5668 value = do_spec_1 (asm_final_spec, 0, NULL);
5675 const char *const spec
5676 = (input_file_compiler->cpp_spec
5677 ? input_file_compiler->cpp_spec
5679 value = do_spec_1 (spec, 0, NULL);
5686 value = do_spec_1 (endfile_spec, 0, NULL);
5692 value = do_spec_1 (link_spec, 0, NULL);
5698 value = do_spec_1 (lib_spec, 0, NULL);
5704 value = do_spec_1 (libgcc_spec, 0, NULL);
5710 /* We assume there is a directory
5711 separator at the end of this string. */
5712 if (target_system_root)
5714 obstack_grow (&obstack, target_system_root,
5715 strlen (target_system_root));
5716 if (target_sysroot_suffix)
5717 obstack_grow (&obstack, target_sysroot_suffix,
5718 strlen (target_sysroot_suffix));
5723 value = do_spec_1 (startfile_spec, 0, NULL);
5728 /* Here we define characters other than letters and digits. */
5731 p = handle_braces (p);
5737 p = handle_spec_function (p);
5743 obstack_1grow (&obstack, '%');
5750 while (p[len] && p[len] != ' ' && p[len] != '%')
5752 suffix_subst = save_string (p - 1, len + 1);
5757 /* Henceforth ignore the option(s) matching the pattern
5762 int have_wildcard = 0;
5765 while (p[len] && p[len] != ' ' && p[len] != '\t')
5768 if (p[len-1] == '*')
5771 for (i = 0; i < n_switches; i++)
5772 if (!strncmp (switches[i].part1, p, len - have_wildcard)
5773 && (have_wildcard || switches[i].part1[len] == '\0'))
5775 switches[i].live_cond |= SWITCH_IGNORE;
5776 switches[i].validated = 1;
5784 if (soft_matched_part)
5786 do_spec_1 (soft_matched_part, 1, NULL);
5787 do_spec_1 (" ", 0, NULL);
5790 /* Catch the case where a spec string contains something like
5791 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5792 hand side of the :. */
5793 error ("spec failure: '%%*' has not been initialized by pattern match");
5796 /* Process a string found as the value of a spec given by name.
5797 This feature allows individual machine descriptions
5798 to add and use their own specs.
5799 %[...] modifies -D options the way %P does;
5800 %(...) uses the spec unmodified. */
5802 error ("warning: use of obsolete %%[ operator in specs");
5805 const char *name = p;
5806 struct spec_list *sl;
5809 /* The string after the S/P is the name of a spec that is to be
5811 while (*p && *p != ')' && *p != ']')
5814 /* See if it's in the list. */
5815 for (len = p - name, sl = specs; sl; sl = sl->next)
5816 if (sl->name_len == len && !strncmp (sl->name, name, len))
5818 name = *(sl->ptr_spec);
5820 notice ("Processing spec %c%s%c, which is '%s'\n",
5821 c, sl->name, (c == '(') ? ')' : ']', name);
5830 value = do_spec_1 (name, 0, NULL);
5836 char *x = (char *) alloca (strlen (name) * 2 + 1);
5838 const char *y = name;
5841 /* Copy all of NAME into BUF, but put __ after
5842 every -D and at the end of each arg. */
5845 if (! strncmp (y, "-D", 2))
5856 && (*y == ' ' || *y == '\t' || *y == '='
5857 || *y == '}' || *y == 0))
5870 value = do_spec_1 (buf, 0, NULL);
5876 /* Discard the closing paren or bracket. */
5883 error ("spec failure: unrecognized spec option '%c'", c);
5889 /* Backslash: treat next character as ordinary. */
5894 /* Ordinary character: put it into the current argument. */
5895 obstack_1grow (&obstack, c);
5899 /* End of string. If we are processing a spec function, we need to
5900 end any pending argument. */
5901 if (processing_spec_function)
5907 /* Look up a spec function. */
5909 static const struct spec_function *
5910 lookup_spec_function (const char *name)
5912 const struct spec_function *sf;
5914 for (sf = static_spec_functions; sf->name != NULL; sf++)
5915 if (strcmp (sf->name, name) == 0)
5921 /* Evaluate a spec function. */
5924 eval_spec_function (const char *func, const char *args)
5926 const struct spec_function *sf;
5927 const char *funcval;
5929 /* Saved spec processing context. */
5930 int save_argbuf_index;
5931 int save_argbuf_length;
5932 const char **save_argbuf;
5935 int save_delete_this_arg;
5936 int save_this_is_output_file;
5937 int save_this_is_library_file;
5938 int save_input_from_pipe;
5939 int save_this_is_linker_script;
5940 const char *save_suffix_subst;
5943 sf = lookup_spec_function (func);
5945 fatal ("unknown spec function '%s'", func);
5947 /* Push the spec processing context. */
5948 save_argbuf_index = argbuf_index;
5949 save_argbuf_length = argbuf_length;
5950 save_argbuf = argbuf;
5952 save_arg_going = arg_going;
5953 save_delete_this_arg = delete_this_arg;
5954 save_this_is_output_file = this_is_output_file;
5955 save_this_is_library_file = this_is_library_file;
5956 save_this_is_linker_script = this_is_linker_script;
5957 save_input_from_pipe = input_from_pipe;
5958 save_suffix_subst = suffix_subst;
5960 /* Create a new spec processing context, and build the function
5964 if (do_spec_2 (args) < 0)
5965 fatal ("error in args to spec function '%s'", func);
5967 /* argbuf_index is an index for the next argument to be inserted, and
5968 so contains the count of the args already inserted. */
5970 funcval = (*sf->func) (argbuf_index, argbuf);
5972 /* Pop the spec processing context. */
5973 argbuf_index = save_argbuf_index;
5974 argbuf_length = save_argbuf_length;
5976 argbuf = save_argbuf;
5978 arg_going = save_arg_going;
5979 delete_this_arg = save_delete_this_arg;
5980 this_is_output_file = save_this_is_output_file;
5981 this_is_library_file = save_this_is_library_file;
5982 this_is_linker_script = save_this_is_linker_script;
5983 input_from_pipe = save_input_from_pipe;
5984 suffix_subst = save_suffix_subst;
5989 /* Handle a spec function call of the form:
5993 ARGS is processed as a spec in a separate context and split into an
5994 argument vector in the normal fashion. The function returns a string
5995 containing a spec which we then process in the caller's context, or
5996 NULL if no processing is required. */
5999 handle_spec_function (const char *p)
6002 const char *endp, *funcval;
6005 processing_spec_function++;
6007 /* Get the function name. */
6008 for (endp = p; *endp != '\0'; endp++)
6010 if (*endp == '(') /* ) */
6012 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6013 if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
6014 fatal ("malformed spec function name");
6016 if (*endp != '(') /* ) */
6017 fatal ("no arguments for spec function");
6018 func = save_string (p, endp - p);
6021 /* Get the arguments. */
6022 for (count = 0; *endp != '\0'; endp++)
6031 else if (*endp == '(') /* ) */
6036 fatal ("malformed spec function arguments");
6037 args = save_string (p, endp - p);
6040 /* p now points to just past the end of the spec function expression. */
6042 funcval = eval_spec_function (func, args);
6043 if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
6049 processing_spec_function--;
6054 /* Inline subroutine of handle_braces. Returns true if the current
6055 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6057 input_suffix_matches (const char *atom, const char *end_atom)
6059 return (input_suffix
6060 && !strncmp (input_suffix, atom, end_atom - atom)
6061 && input_suffix[end_atom - atom] == '\0');
6064 /* Subroutine of handle_braces. Returns true if the current
6065 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6067 input_spec_matches (const char *atom, const char *end_atom)
6069 return (input_file_compiler
6070 && input_file_compiler->suffix
6071 && input_file_compiler->suffix[0] != '\0'
6072 && !strncmp (input_file_compiler->suffix + 1, atom,
6074 && input_file_compiler->suffix[end_atom - atom + 1] == '\0');
6077 /* Subroutine of handle_braces. Returns true if a switch
6078 matching the atom bracketed by ATOM and END_ATOM appeared on the
6081 switch_matches (const char *atom, const char *end_atom, int starred)
6084 int len = end_atom - atom;
6085 int plen = starred ? len : -1;
6087 for (i = 0; i < n_switches; i++)
6088 if (!strncmp (switches[i].part1, atom, len)
6089 && (starred || switches[i].part1[len] == '\0')
6090 && check_live_switch (i, plen))
6096 /* Inline subroutine of handle_braces. Mark all of the switches which
6097 match ATOM (extends to END_ATOM; STARRED indicates whether there
6098 was a star after the atom) for later processing. */
6100 mark_matching_switches (const char *atom, const char *end_atom, int starred)
6103 int len = end_atom - atom;
6104 int plen = starred ? len : -1;
6106 for (i = 0; i < n_switches; i++)
6107 if (!strncmp (switches[i].part1, atom, len)
6108 && (starred || switches[i].part1[len] == '\0')
6109 && check_live_switch (i, plen))
6110 switches[i].ordering = 1;
6113 /* Inline subroutine of handle_braces. Process all the currently
6114 marked switches through give_switch, and clear the marks. */
6116 process_marked_switches (void)
6120 for (i = 0; i < n_switches; i++)
6121 if (switches[i].ordering == 1)
6123 switches[i].ordering = 0;
6128 /* Handle a %{ ... } construct. P points just inside the leading {.
6129 Returns a pointer one past the end of the brace block, or 0
6130 if we call do_spec_1 and that returns -1. */
6133 handle_braces (const char *p)
6135 const char *atom, *end_atom;
6136 const char *d_atom = NULL, *d_end_atom = NULL;
6137 const char *orig = p;
6145 bool a_must_be_last = false;
6146 bool ordered_set = false;
6147 bool disjunct_set = false;
6148 bool disj_matched = false;
6149 bool disj_starred = true;
6150 bool n_way_choice = false;
6151 bool n_way_matched = false;
6153 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6160 /* Scan one "atom" (S in the description above of %{}, possibly
6161 with '!', '.', '@', ',', or '*' modifiers). */
6163 a_is_suffix = false;
6164 a_is_starred = false;
6165 a_is_negated = false;
6166 a_is_spectype = false;
6170 p++, a_is_negated = true;
6174 p++, a_is_suffix = true;
6176 p++, a_is_spectype = true;
6179 while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '='
6180 || *p == ',' || *p == '.' || *p == '@')
6185 p++, a_is_starred = 1;
6191 /* Substitute the switch(es) indicated by the current atom. */
6193 if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
6194 || a_is_spectype || atom == end_atom)
6197 mark_matching_switches (atom, end_atom, a_is_starred);
6200 process_marked_switches ();
6204 /* Substitute some text if the current atom appears as a switch
6206 disjunct_set = true;
6210 if (atom == end_atom)
6212 if (!n_way_choice || disj_matched || *p == '|'
6213 || a_is_negated || a_is_suffix || a_is_spectype
6217 /* An empty term may appear as the last choice of an
6218 N-way choice set; it means "otherwise". */
6219 a_must_be_last = true;
6220 disj_matched = !n_way_matched;
6221 disj_starred = false;
6225 if ((a_is_suffix || a_is_spectype) && a_is_starred)
6229 disj_starred = false;
6231 /* Don't bother testing this atom if we already have a
6233 if (!disj_matched && !n_way_matched)
6236 a_matched = input_suffix_matches (atom, end_atom);
6237 else if (a_is_spectype)
6238 a_matched = input_spec_matches (atom, end_atom);
6240 a_matched = switch_matches (atom, end_atom, a_is_starred);
6242 if (a_matched != a_is_negated)
6244 disj_matched = true;
6246 d_end_atom = end_atom;
6253 /* Found the body, that is, the text to substitute if the
6254 current disjunction matches. */
6255 p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
6256 disj_matched && !n_way_matched);
6260 /* If we have an N-way choice, reset state for the next
6264 n_way_choice = true;
6265 n_way_matched |= disj_matched;
6266 disj_matched = false;
6267 disj_starred = true;
6268 d_atom = d_end_atom = NULL;
6277 while (*p++ != '}');
6282 fatal ("braced spec '%s' is invalid at '%c'", orig, *p);
6287 /* Subroutine of handle_braces. Scan and process a brace substitution body
6288 (X in the description of %{} syntax). P points one past the colon;
6289 ATOM and END_ATOM bracket the first atom which was found to be true
6290 (present) in the current disjunction; STARRED indicates whether all
6291 the atoms in the current disjunction were starred (for syntax validation);
6292 MATCHED indicates whether the disjunction matched or not, and therefore
6293 whether or not the body is to be processed through do_spec_1 or just
6294 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6298 process_brace_body (const char *p, const char *atom, const char *end_atom,
6299 int starred, int matched)
6301 const char *body, *end_body;
6302 unsigned int nesting_level;
6303 bool have_subst = false;
6305 /* Locate the closing } or ;, honoring nested braces.
6306 Trim trailing whitespace. */
6315 if (!--nesting_level)
6318 else if (*p == ';' && nesting_level == 1)
6320 else if (*p == '%' && p[1] == '*' && nesting_level == 1)
6322 else if (*p == '\0')
6328 while (end_body[-1] == ' ' || end_body[-1] == '\t')
6331 if (have_subst && !starred)
6336 /* Copy the substitution body to permanent storage and execute it.
6337 If have_subst is false, this is a simple matter of running the
6338 body through do_spec_1... */
6339 char *string = save_string (body, end_body - body);
6342 if (do_spec_1 (string, 0, NULL) < 0)
6347 /* ... but if have_subst is true, we have to process the
6348 body once for each matching switch, with %* set to the
6349 variant part of the switch. */
6350 unsigned int hard_match_len = end_atom - atom;
6353 for (i = 0; i < n_switches; i++)
6354 if (!strncmp (switches[i].part1, atom, hard_match_len)
6355 && check_live_switch (i, hard_match_len))
6357 if (do_spec_1 (string, 0,
6358 &switches[i].part1[hard_match_len]) < 0)
6360 /* Pass any arguments this switch has. */
6362 suffix_subst = NULL;
6370 fatal ("braced spec body '%s' is invalid", body);
6373 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6374 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6375 spec, or -1 if either exact match or %* is used.
6377 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
6378 whose value does not begin with "no-" is obsoleted by the same value
6379 with the "no-", similarly for a switch with the "no-" prefix. */
6382 check_live_switch (int switchnum, int prefix_length)
6384 const char *name = switches[switchnum].part1;
6387 /* If we already processed this switch and determined if it was
6388 live or not, return our past determination. */
6389 if (switches[switchnum].live_cond != 0)
6390 return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0
6391 && (switches[switchnum].live_cond & SWITCH_FALSE) == 0
6392 && (switches[switchnum].live_cond & SWITCH_IGNORE_PERMANENTLY)
6395 /* In the common case of {<at-most-one-letter>*}, a negating
6396 switch would always match, so ignore that case. We will just
6397 send the conflicting switches to the compiler phase. */
6398 if (prefix_length >= 0 && prefix_length <= 1)
6401 /* Now search for duplicate in a manner that depends on the name. */
6405 for (i = switchnum + 1; i < n_switches; i++)
6406 if (switches[i].part1[0] == 'O')
6408 switches[switchnum].validated = 1;
6409 switches[switchnum].live_cond = SWITCH_FALSE;
6414 case 'W': case 'f': case 'm':
6415 if (! strncmp (name + 1, "no-", 3))
6417 /* We have Xno-YYY, search for XYYY. */
6418 for (i = switchnum + 1; i < n_switches; i++)
6419 if (switches[i].part1[0] == name[0]
6420 && ! strcmp (&switches[i].part1[1], &name[4]))
6422 switches[switchnum].validated = 1;
6423 switches[switchnum].live_cond = SWITCH_FALSE;
6429 /* We have XYYY, search for Xno-YYY. */
6430 for (i = switchnum + 1; i < n_switches; i++)
6431 if (switches[i].part1[0] == name[0]
6432 && switches[i].part1[1] == 'n'
6433 && switches[i].part1[2] == 'o'
6434 && switches[i].part1[3] == '-'
6435 && !strcmp (&switches[i].part1[4], &name[1]))
6437 switches[switchnum].validated = 1;
6438 switches[switchnum].live_cond = SWITCH_FALSE;
6445 /* Otherwise the switch is live. */
6446 switches[switchnum].live_cond |= SWITCH_LIVE;
6450 /* Pass a switch to the current accumulating command
6451 in the same form that we received it.
6452 SWITCHNUM identifies the switch; it is an index into
6453 the vector of switches gcc received, which is `switches'.
6454 This cannot fail since it never finishes a command line.
6456 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6459 give_switch (int switchnum, int omit_first_word)
6461 if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0)
6464 if (!omit_first_word)
6466 do_spec_1 ("-", 0, NULL);
6467 do_spec_1 (switches[switchnum].part1, 1, NULL);
6470 if (switches[switchnum].args != 0)
6473 for (p = switches[switchnum].args; *p; p++)
6475 const char *arg = *p;
6477 do_spec_1 (" ", 0, NULL);
6480 unsigned length = strlen (arg);
6483 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
6484 if (arg[length] == '.')
6486 (CONST_CAST(char *, arg))[length] = 0;
6490 do_spec_1 (arg, 1, NULL);
6492 (CONST_CAST(char *, arg))[length] = '.';
6493 do_spec_1 (suffix_subst, 1, NULL);
6496 do_spec_1 (arg, 1, NULL);
6500 do_spec_1 (" ", 0, NULL);
6501 switches[switchnum].validated = 1;
6504 /* Search for a file named NAME trying various prefixes including the
6505 user's -B prefix and some standard ones.
6506 Return the absolute file name found. If nothing is found, return NAME. */
6509 find_file (const char *name)
6511 char *newname = find_a_file (&startfile_prefixes, name, R_OK, true);
6512 return newname ? newname : name;
6515 /* Determine whether a directory exists. If LINKER, return 0 for
6516 certain fixed names not needed by the linker. */
6519 is_directory (const char *path1, bool linker)
6526 /* Ensure the string ends with "/.". The resulting path will be a
6527 directory even if the given path is a symbolic link. */
6528 len1 = strlen (path1);
6529 path = (char *) alloca (3 + len1);
6530 memcpy (path, path1, len1);
6532 if (!IS_DIR_SEPARATOR (cp[-1]))
6533 *cp++ = DIR_SEPARATOR;
6537 /* Exclude directories that the linker is known to search. */
6539 && IS_DIR_SEPARATOR (path[0])
6541 && strncmp (path + 1, "lib", 3) == 0)
6543 && strncmp (path + 1, "usr", 3) == 0
6544 && IS_DIR_SEPARATOR (path[4])
6545 && strncmp (path + 5, "lib", 3) == 0)))
6548 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
6551 /* Set up the various global variables to indicate that we're processing
6552 the input file named FILENAME. */
6555 set_input (const char *filename)
6559 input_filename = filename;
6560 input_filename_length = strlen (input_filename);
6561 input_basename = lbasename (input_filename);
6563 /* Find a suffix starting with the last period,
6564 and set basename_length to exclude that suffix. */
6565 basename_length = strlen (input_basename);
6566 suffixed_basename_length = basename_length;
6567 p = input_basename + basename_length;
6568 while (p != input_basename && *p != '.')
6570 if (*p == '.' && p != input_basename)
6572 basename_length = p - input_basename;
6573 input_suffix = p + 1;
6578 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6579 we will need to do a stat on the input_filename. The
6580 INPUT_STAT_SET signals that the stat is needed. */
6584 /* On fatal signals, delete all the temporary files. */
6587 fatal_error (int signum)
6589 signal (signum, SIG_DFL);
6590 delete_failure_queue ();
6591 delete_temp_files ();
6592 /* Get the same signal again, this time not handled,
6593 so its normal effect occurs. */
6594 kill (getpid (), signum);
6597 /* Compare the contents of the two files named CMPFILE[0] and
6598 CMPFILE[1]. Return zero if they're identical, nonzero
6602 compare_files (char *cmpfile[])
6605 FILE *temp[2] = { NULL, NULL };
6611 void *map[2] = { NULL, NULL };
6613 for (i = 0; i < 2; i++)
6617 if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode))
6619 error ("%s: could not determine length of compare-debug file %s",
6620 input_filename, cmpfile[i]);
6625 length[i] = st.st_size;
6628 if (!ret && length[0] != length[1])
6630 error ("%s: -fcompare-debug failure (length)", input_filename);
6635 for (i = 0; i < 2; i++)
6637 int fd = open (cmpfile[i], O_RDONLY);
6640 error ("%s: could not open compare-debug file %s",
6641 input_filename, cmpfile[i]);
6646 map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0);
6649 if (map[i] == (void *) MAP_FAILED)
6658 if (memcmp (map[0], map[1], length[0]) != 0)
6660 error ("%s: -fcompare-debug failure", input_filename);
6665 for (i = 0; i < 2; i++)
6667 munmap ((caddr_t) map[i], length[i]);
6676 for (i = 0; i < 2; i++)
6678 temp[i] = fopen (cmpfile[i], "r");
6681 error ("%s: could not open compare-debug file %s",
6682 input_filename, cmpfile[i]);
6688 if (!ret && temp[0] && temp[1])
6692 c0 = fgetc (temp[0]);
6693 c1 = fgetc (temp[1]);
6697 error ("%s: -fcompare-debug failure",
6707 for (i = 1; i >= 0; i--)
6716 extern int main (int, char **);
6719 main (int argc, char **argv)
6723 int linker_was_run = 0;
6724 int lang_n_infiles = 0;
6725 int num_linker_inputs = 0;
6726 char *explicit_link_files;
6729 struct user_specs *uptr;
6730 char **old_argv = argv;
6732 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6733 on ?: in file-scope variable initializations. */
6734 asm_debug = ASM_DEBUG_SPEC;
6736 p = argv[0] + strlen (argv[0]);
6737 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
6741 xmalloc_set_program_name (programname);
6743 expandargv (&argc, &argv);
6745 /* Determine if any expansions were made. */
6746 if (argv != old_argv)
6747 at_file_supplied = true;
6749 prune_options (&argc, &argv);
6751 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6752 /* Perform host dependent initialization when needed. */
6753 GCC_DRIVER_HOST_INITIALIZATION;
6756 /* Unlock the stdio streams. */
6757 unlock_std_streams ();
6759 gcc_init_libintl ();
6761 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
6762 signal (SIGINT, fatal_error);
6764 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
6765 signal (SIGHUP, fatal_error);
6767 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
6768 signal (SIGTERM, fatal_error);
6770 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
6771 signal (SIGPIPE, fatal_error);
6774 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6775 receive the signal. A different setting is inheritable */
6776 signal (SIGCHLD, SIG_DFL);
6779 /* Allocate the argument vector. */
6782 obstack_init (&obstack);
6784 /* Build multilib_select, et. al from the separate lines that make up each
6785 multilib selection. */
6787 const char *const *q = multilib_raw;
6790 obstack_init (&multilib_obstack);
6791 while ((p = *q++) != (char *) 0)
6792 obstack_grow (&multilib_obstack, p, strlen (p));
6794 obstack_1grow (&multilib_obstack, 0);
6795 multilib_select = XOBFINISH (&multilib_obstack, const char *);
6797 q = multilib_matches_raw;
6798 while ((p = *q++) != (char *) 0)
6799 obstack_grow (&multilib_obstack, p, strlen (p));
6801 obstack_1grow (&multilib_obstack, 0);
6802 multilib_matches = XOBFINISH (&multilib_obstack, const char *);
6804 q = multilib_exclusions_raw;
6805 while ((p = *q++) != (char *) 0)
6806 obstack_grow (&multilib_obstack, p, strlen (p));
6808 obstack_1grow (&multilib_obstack, 0);
6809 multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
6812 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
6815 obstack_1grow (&multilib_obstack, ' ');
6816 obstack_grow (&multilib_obstack,
6817 multilib_defaults_raw[i],
6818 strlen (multilib_defaults_raw[i]));
6822 obstack_1grow (&multilib_obstack, 0);
6823 multilib_defaults = XOBFINISH (&multilib_obstack, const char *);
6826 #ifdef INIT_ENVIRONMENT
6827 /* Set up any other necessary machine specific environment variables. */
6828 xputenv (INIT_ENVIRONMENT);
6831 /* Make a table of what switches there are (switches, n_switches).
6832 Make a table of specified input files (infiles, n_infiles).
6833 Decode switches that are handled locally. */
6835 process_command (argc, CONST_CAST2 (const char **, char **, argv));
6837 /* Initialize the vector of specs to just the default.
6838 This means one element containing 0s, as a terminator. */
6840 compilers = XNEWVAR (struct compiler, sizeof default_compilers);
6841 memcpy (compilers, default_compilers, sizeof default_compilers);
6842 n_compilers = n_default_compilers;
6844 /* Read specs from a file if there is one. */
6846 machine_suffix = concat (spec_machine, dir_separator_str,
6847 spec_version, dir_separator_str, NULL);
6848 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
6850 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true);
6851 /* Read the specs file unless it is a default one. */
6852 if (specs_file != 0 && strcmp (specs_file, "specs"))
6853 read_specs (specs_file, TRUE);
6857 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6858 for any override of as, ld and libraries. */
6859 specs_file = (char *) alloca (strlen (standard_exec_prefix)
6860 + strlen (just_machine_suffix) + sizeof ("specs"));
6862 strcpy (specs_file, standard_exec_prefix);
6863 strcat (specs_file, just_machine_suffix);
6864 strcat (specs_file, "specs");
6865 if (access (specs_file, R_OK) == 0)
6866 read_specs (specs_file, TRUE);
6868 /* Process any configure-time defaults specified for the command line
6869 options, via OPTION_DEFAULT_SPECS. */
6870 for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
6871 do_option_spec (option_default_specs[i].name,
6872 option_default_specs[i].spec);
6874 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6875 of the command line. */
6877 for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
6878 do_self_spec (driver_self_specs[i]);
6882 enum save_temps save;
6884 if (!compare_debug_second)
6886 n_switches_debug_check[1] = n_switches;
6887 switches_debug_check[1] = XDUPVEC (struct switchstr, switches,
6890 do_self_spec ("%:compare-debug-self-opt()");
6891 n_switches_debug_check[0] = n_switches;
6892 switches_debug_check[0] = switches;
6894 n_switches = n_switches_debug_check[1];
6895 switches = switches_debug_check[1];
6898 /* Avoid crash when computing %j in this early. */
6899 save = save_temps_flag;
6900 save_temps_flag = SAVE_TEMPS_NONE;
6902 compare_debug = -compare_debug;
6903 do_self_spec ("%:compare-debug-self-opt()");
6905 save_temps_flag = save;
6907 if (!compare_debug_second)
6909 n_switches_debug_check[1] = n_switches;
6910 switches_debug_check[1] = switches;
6911 compare_debug = -compare_debug;
6912 n_switches = n_switches_debug_check[0];
6913 switches = switches_debug_check[0];
6917 /* If not cross-compiling, look for executables in the standard
6919 if (*cross_compile == '0')
6921 if (*md_exec_prefix)
6923 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
6924 PREFIX_PRIORITY_LAST, 0, 0);
6928 /* Process sysroot_suffix_spec. */
6929 if (*sysroot_suffix_spec != 0
6930 && do_spec_2 (sysroot_suffix_spec) == 0)
6932 if (argbuf_index > 1)
6933 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6934 else if (argbuf_index == 1)
6935 target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
6938 #ifdef HAVE_LD_SYSROOT
6939 /* Pass the --sysroot option to the linker, if it supports that. If
6940 there is a sysroot_suffix_spec, it has already been processed by
6941 this point, so target_system_root really is the system root we
6943 if (target_system_root)
6945 obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6946 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
6947 set_spec ("link", XOBFINISH (&obstack, const char *));
6951 /* Process sysroot_hdrs_suffix_spec. */
6952 if (*sysroot_hdrs_suffix_spec != 0
6953 && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
6955 if (argbuf_index > 1)
6956 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6957 else if (argbuf_index == 1)
6958 target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
6961 /* Look for startfiles in the standard places. */
6962 if (*startfile_prefix_spec != 0
6963 && do_spec_2 (startfile_prefix_spec) == 0
6964 && do_spec_1 (" ", 0, NULL) == 0)
6967 for (ndx = 0; ndx < argbuf_index; ndx++)
6968 add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS",
6969 PREFIX_PRIORITY_LAST, 0, 1);
6971 /* We should eventually get rid of all these and stick to
6972 startfile_prefix_spec exclusively. */
6973 else if (*cross_compile == '0' || target_system_root)
6975 if (*md_startfile_prefix)
6976 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
6977 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
6979 if (*md_startfile_prefix_1)
6980 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
6981 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
6983 /* If standard_startfile_prefix is relative, base it on
6984 standard_exec_prefix. This lets us move the installed tree
6985 as a unit. If GCC_EXEC_PREFIX is defined, base
6986 standard_startfile_prefix on that as well.
6988 If the prefix is relative, only search it for native compilers;
6989 otherwise we will search a directory containing host libraries. */
6990 if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
6991 add_sysrooted_prefix (&startfile_prefixes,
6992 standard_startfile_prefix, "BINUTILS",
6993 PREFIX_PRIORITY_LAST, 0, 1);
6994 else if (*cross_compile == '0')
6996 add_prefix (&startfile_prefixes,
6997 concat (gcc_exec_prefix
6998 ? gcc_exec_prefix : standard_exec_prefix,
7000 standard_startfile_prefix, NULL),
7001 NULL, PREFIX_PRIORITY_LAST, 0, 1);
7004 /* Sysrooted prefixes are relocated because target_system_root is
7005 also relocated by gcc_exec_prefix. */
7006 if (*standard_startfile_prefix_1)
7007 add_sysrooted_prefix (&startfile_prefixes,
7008 standard_startfile_prefix_1, "BINUTILS",
7009 PREFIX_PRIORITY_LAST, 0, 1);
7010 if (*standard_startfile_prefix_2)
7011 add_sysrooted_prefix (&startfile_prefixes,
7012 standard_startfile_prefix_2, "BINUTILS",
7013 PREFIX_PRIORITY_LAST, 0, 1);
7016 /* Process any user specified specs in the order given on the command
7018 for (uptr = user_specs_head; uptr; uptr = uptr->next)
7020 char *filename = find_a_file (&startfile_prefixes, uptr->filename,
7022 read_specs (filename ? filename : uptr->filename, FALSE);
7025 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7026 if (gcc_exec_prefix)
7027 gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
7028 spec_version, dir_separator_str, NULL);
7030 /* Now we have the specs.
7031 Set the `valid' bits for switches that match anything in any spec. */
7033 validate_all_switches ();
7035 /* Now that we have the switches and the specs, set
7036 the subdirectory based on the options. */
7037 set_multilib_dir ();
7039 /* Set up to remember the pathname of gcc and any options
7040 needed for collect. We use argv[0] instead of programname because
7041 we need the complete pathname. */
7042 obstack_init (&collect_obstack);
7043 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7044 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
7045 xputenv (XOBFINISH (&collect_obstack, char *));
7047 /* Set up to remember the pathname of the lto wrapper. */
7049 lto_wrapper_spec = find_a_file (&exec_prefixes, "lto-wrapper", X_OK, false);
7050 if (lto_wrapper_spec)
7052 obstack_init (&collect_obstack);
7053 obstack_grow (&collect_obstack, "COLLECT_LTO_WRAPPER=",
7054 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7055 obstack_grow (&collect_obstack, lto_wrapper_spec,
7056 strlen (lto_wrapper_spec) + 1);
7057 xputenv (XOBFINISH (&collect_obstack, char *));
7060 /* Warn about any switches that no pass was interested in. */
7062 for (i = 0; (int) i < n_switches; i++)
7063 if (! switches[i].validated)
7064 error ("unrecognized option '-%s'", switches[i].part1);
7066 /* Obey some of the options. */
7068 if (print_search_dirs)
7070 printf (_("install: %s%s\n"),
7071 gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
7072 gcc_exec_prefix ? "" : machine_suffix);
7073 printf (_("programs: %s\n"),
7074 build_search_list (&exec_prefixes, "", false, false));
7075 printf (_("libraries: %s\n"),
7076 build_search_list (&startfile_prefixes, "", false, true));
7080 if (print_file_name)
7082 printf ("%s\n", find_file (print_file_name));
7086 if (print_prog_name)
7088 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0);
7089 printf ("%s\n", (newname ? newname : print_prog_name));
7093 if (print_multi_lib)
7095 print_multilib_info ();
7099 if (print_multi_directory)
7101 if (multilib_dir == NULL)
7104 printf ("%s\n", multilib_dir);
7110 if (target_system_root)
7112 if (target_sysroot_suffix)
7113 printf ("%s%s\n", target_system_root, target_sysroot_suffix);
7115 printf ("%s\n", target_system_root);
7120 if (print_multi_os_directory)
7122 if (multilib_os_dir == NULL)
7125 printf ("%s\n", multilib_os_dir);
7129 if (print_sysroot_headers_suffix)
7131 if (*sysroot_hdrs_suffix_spec)
7133 printf("%s\n", (target_sysroot_hdrs_suffix
7134 ? target_sysroot_hdrs_suffix
7139 /* The error status indicates that only one set of fixed
7140 headers should be built. */
7141 fatal ("not configured with sysroot headers suffix");
7144 if (print_help_list)
7150 printf (_("\nFor bug reporting instructions, please see:\n"));
7151 printf ("%s.\n", bug_report_url);
7156 /* We do not exit here. Instead we have created a fake input file
7157 called 'help-dummy' which needs to be compiled, and we pass this
7158 on the various sub-processes, along with the --help switch.
7159 Ensure their output appears after ours. */
7160 fputc ('\n', stdout);
7166 printf (_("%s %s%s\n"), programname, pkgversion_string,
7168 printf ("Copyright %s 2010 Free Software Foundation, Inc.\n",
7170 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7171 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7176 /* We do not exit here. We use the same mechanism of --help to print
7177 the version of the sub-processes. */
7178 fputc ('\n', stdout);
7187 notice ("Target: %s\n", spec_machine);
7188 notice ("Configured with: %s\n", configuration_arguments);
7190 #ifdef THREAD_MODEL_SPEC
7191 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7192 but there's no point in doing all this processing just to get
7193 thread_model back. */
7194 obstack_init (&obstack);
7195 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
7196 obstack_1grow (&obstack, '\0');
7197 thrmod = XOBFINISH (&obstack, const char *);
7199 thrmod = thread_model;
7202 notice ("Thread model: %s\n", thrmod);
7204 /* compiler_version is truncated at the first space when initialized
7205 from version string, so truncate version_string at the first space
7206 before comparing. */
7207 for (n = 0; version_string[n]; n++)
7208 if (version_string[n] == ' ')
7211 if (! strncmp (version_string, compiler_version, n)
7212 && compiler_version[n] == 0)
7213 notice ("gcc version %s %s\n", version_string, pkgversion_string);
7215 notice ("gcc driver version %s %sexecuting gcc version %s\n",
7216 version_string, pkgversion_string, compiler_version);
7222 if (n_infiles == added_libraries)
7223 fatal ("no input files");
7225 /* Make a place to record the compiler output file names
7226 that correspond to the input files. */
7229 i += lang_specific_extra_outfiles;
7230 outfiles = XCNEWVEC (const char *, i);
7232 /* Record which files were specified explicitly as link input. */
7234 explicit_link_files = XCNEWVEC (char, n_infiles);
7237 combine_inputs = true;
7239 combine_inputs = false;
7241 for (i = 0; (int) i < n_infiles; i++)
7243 const char *name = infiles[i].name;
7244 struct compiler *compiler = lookup_compiler (name,
7246 infiles[i].language);
7248 if (compiler && !(compiler->combinable))
7249 combine_inputs = false;
7251 if (lang_n_infiles > 0 && compiler != input_file_compiler
7252 && infiles[i].language && infiles[i].language[0] != '*')
7253 infiles[i].incompiler = compiler;
7257 input_file_compiler = compiler;
7258 infiles[i].incompiler = compiler;
7262 /* Since there is no compiler for this input file, assume it is a
7264 explicit_link_files[i] = 1;
7265 infiles[i].incompiler = NULL;
7267 infiles[i].compiled = false;
7268 infiles[i].preprocessed = false;
7271 if (!combine_inputs && have_c && have_o && lang_n_infiles > 1)
7272 fatal ("cannot specify -o with -c, -S or -E with multiple files");
7274 if (combine_flag && save_temps_flag)
7276 bool save_combine_inputs = combine_inputs;
7277 /* Must do a separate pre-processing pass for C & Objective-C files, to
7278 obtain individual .i files. */
7280 combine_inputs = false;
7281 for (i = 0; (int) i < n_infiles; i++)
7283 int this_file_error = 0;
7285 input_file_number = i;
7286 set_input (infiles[i].name);
7287 if (infiles[i].incompiler
7288 && (infiles[i].incompiler)->needs_preprocessing)
7289 input_file_compiler = infiles[i].incompiler;
7293 if (input_file_compiler)
7295 if (input_file_compiler->spec[0] == '#')
7297 error ("%s: %s compiler not installed on this system",
7298 input_filename, &input_file_compiler->spec[1]);
7299 this_file_error = 1;
7303 value = do_spec (input_file_compiler->spec);
7304 infiles[i].preprocessed = true;
7305 if (!have_o_argbuf_index)
7306 fatal ("spec '%s' is invalid", input_file_compiler->spec);
7307 infiles[i].name = argbuf[have_o_argbuf_index];
7308 infiles[i].incompiler
7309 = lookup_compiler (infiles[i].name,
7310 strlen (infiles[i].name),
7311 infiles[i].language);
7314 this_file_error = 1;
7318 if (this_file_error)
7320 delete_failure_queue ();
7324 clear_failure_queue ();
7326 combine_inputs = save_combine_inputs;
7329 for (i = 0; (int) i < n_infiles; i++)
7331 int this_file_error = 0;
7333 /* Tell do_spec what to substitute for %i. */
7335 input_file_number = i;
7336 set_input (infiles[i].name);
7338 if (infiles[i].compiled)
7341 /* Use the same thing in %o, unless cp->spec says otherwise. */
7343 outfiles[i] = input_filename;
7345 /* Figure out which compiler from the file's suffix. */
7347 if (! combine_inputs)
7349 = lookup_compiler (infiles[i].name, input_filename_length,
7350 infiles[i].language);
7352 input_file_compiler = infiles[i].incompiler;
7354 if (input_file_compiler)
7356 /* Ok, we found an applicable compiler. Run its spec. */
7358 if (input_file_compiler->spec[0] == '#')
7360 error ("%s: %s compiler not installed on this system",
7361 input_filename, &input_file_compiler->spec[1]);
7362 this_file_error = 1;
7368 if (debug_check_temp_file[0])
7369 free (debug_check_temp_file[0]);
7370 debug_check_temp_file[0] = NULL;
7372 if (debug_check_temp_file[1])
7373 free (debug_check_temp_file[1]);
7374 debug_check_temp_file[1] = NULL;
7377 value = do_spec (input_file_compiler->spec);
7378 infiles[i].compiled = true;
7380 this_file_error = 1;
7381 else if (compare_debug && debug_check_temp_file[0])
7384 error ("Recompiling with -fcompare-debug");
7386 compare_debug = -compare_debug;
7387 n_switches = n_switches_debug_check[1];
7388 switches = switches_debug_check[1];
7390 value = do_spec (input_file_compiler->spec);
7392 compare_debug = -compare_debug;
7393 n_switches = n_switches_debug_check[0];
7394 switches = switches_debug_check[0];
7398 error ("during -fcompare-debug recompilation");
7399 this_file_error = 1;
7402 gcc_assert (debug_check_temp_file[1]
7403 && strcmp (debug_check_temp_file[0],
7404 debug_check_temp_file[1]));
7407 error ("Comparing final insns dumps");
7409 if (compare_files (debug_check_temp_file))
7410 this_file_error = 1;
7415 if (debug_check_temp_file[0])
7416 free (debug_check_temp_file[0]);
7417 debug_check_temp_file[0] = NULL;
7419 if (debug_check_temp_file[1])
7420 free (debug_check_temp_file[1]);
7421 debug_check_temp_file[1] = NULL;
7426 /* If this file's name does not contain a recognized suffix,
7427 record it as explicit linker input. */
7430 explicit_link_files[i] = 1;
7432 /* Clear the delete-on-failure queue, deleting the files in it
7433 if this compilation failed. */
7435 if (this_file_error)
7437 delete_failure_queue ();
7440 /* If this compilation succeeded, don't delete those files later. */
7441 clear_failure_queue ();
7444 /* Reset the input file name to the first compile/object file name, for use
7445 with %b in LINK_SPEC. We use the first input file that we can find
7446 a compiler to compile it instead of using infiles.language since for
7447 languages other than C we use aliases that we then lookup later. */
7452 for (i = 0; i < n_infiles ; i++)
7453 if (infiles[i].language && infiles[i].language[0] != '*')
7455 set_input (infiles[i].name);
7460 if (error_count == 0)
7462 /* Make sure INPUT_FILE_NUMBER points to first available open
7464 input_file_number = n_infiles;
7465 if (lang_specific_pre_link ())
7469 /* Determine if there are any linker input files. */
7470 num_linker_inputs = 0;
7471 for (i = 0; (int) i < n_infiles; i++)
7472 if (explicit_link_files[i] || outfiles[i] != NULL)
7473 num_linker_inputs++;
7475 /* Run ld to link all the compiler output files. */
7477 if (num_linker_inputs > 0 && error_count == 0 && print_subprocess_help < 2)
7479 int tmp = execution_count;
7480 const char *fuse_linker_plugin = "fuse-linker-plugin";
7482 /* We'll use ld if we can't find collect2. */
7483 if (! strcmp (linker_name_spec, "collect2"))
7485 char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
7487 linker_name_spec = "ld";
7490 if (switch_matches (fuse_linker_plugin,
7491 fuse_linker_plugin + strlen (fuse_linker_plugin), 0))
7493 linker_plugin_file_spec = find_a_file (&exec_prefixes,
7494 "liblto_plugin.so", X_OK,
7496 if (!linker_plugin_file_spec)
7497 fatal ("-fuse-linker-plugin, but liblto_plugin.so not found");
7499 lto_libgcc_spec = find_a_file (&startfile_prefixes, "libgcc.a",
7501 if (!lto_libgcc_spec)
7502 fatal ("could not find libgcc.a");
7504 lto_gcc_spec = argv[0];
7506 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7508 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false);
7509 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true);
7511 if (print_subprocess_help == 1)
7513 printf (_("\nLinker options\n==============\n\n"));
7514 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7515 " to the linker.\n\n"));
7518 value = do_spec (link_command_spec);
7521 linker_was_run = (tmp != execution_count);
7524 /* If options said don't run linker,
7525 complain about input files to be given to the linker. */
7527 if (! linker_was_run && error_count == 0)
7528 for (i = 0; (int) i < n_infiles; i++)
7529 if (explicit_link_files[i]
7530 && !(infiles[i].language && infiles[i].language[0] == '*'))
7531 error ("%s: linker input file unused because linking not done",
7534 /* Delete some or all of the temporary files we made. */
7537 delete_failure_queue ();
7538 delete_temp_files ();
7540 if (print_help_list)
7542 printf (("\nFor bug reporting instructions, please see:\n"));
7543 printf ("%s\n", bug_report_url);
7546 return (signal_count != 0 ? 2
7547 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
7551 /* Find the proper compilation spec for the file name NAME,
7552 whose length is LENGTH. LANGUAGE is the specified language,
7553 or 0 if this file is to be passed to the linker. */
7555 static struct compiler *
7556 lookup_compiler (const char *name, size_t length, const char *language)
7558 struct compiler *cp;
7560 /* If this was specified by the user to be a linker input, indicate that. */
7561 if (language != 0 && language[0] == '*')
7564 /* Otherwise, look for the language, if one is spec'd. */
7567 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7568 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
7571 error ("language %s not recognized", language);
7575 /* Look for a suffix. */
7576 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7578 if (/* The suffix `-' matches only the file name `-'. */
7579 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
7580 || (strlen (cp->suffix) < length
7581 /* See if the suffix matches the end of NAME. */
7582 && !strcmp (cp->suffix,
7583 name + length - strlen (cp->suffix))
7588 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7589 /* Look again, but case-insensitively this time. */
7591 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7593 if (/* The suffix `-' matches only the file name `-'. */
7594 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
7595 || (strlen (cp->suffix) < length
7596 /* See if the suffix matches the end of NAME. */
7597 && ((!strcmp (cp->suffix,
7598 name + length - strlen (cp->suffix))
7599 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7600 && !strcasecmp (cp->suffix,
7601 name + length - strlen (cp->suffix)))
7607 if (cp >= compilers)
7609 if (cp->spec[0] != '@')
7610 /* A non-alias entry: return it. */
7613 /* An alias entry maps a suffix to a language.
7614 Search for the language; pass 0 for NAME and LENGTH
7615 to avoid infinite recursion if language not found. */
7616 return lookup_compiler (NULL, 0, cp->spec + 1);
7622 save_string (const char *s, int len)
7624 char *result = XNEWVEC (char, len + 1);
7626 memcpy (result, s, len);
7632 pfatal_with_name (const char *name)
7634 perror_with_name (name);
7635 delete_temp_files ();
7640 perror_with_name (const char *name)
7642 error ("%s: %s", name, xstrerror (errno));
7645 /* Output an error message and exit. */
7648 fancy_abort (const char *file, int line, const char *func)
7650 fatal_ice ("internal gcc abort in %s, at %s:%d", func, file, line);
7653 /* Output an error message and exit. */
7656 fatal_ice (const char *cmsgid, ...)
7660 va_start (ap, cmsgid);
7662 fprintf (stderr, "%s: ", programname);
7663 vfprintf (stderr, _(cmsgid), ap);
7665 fprintf (stderr, "\n");
7666 delete_temp_files ();
7667 exit (pass_exit_codes ? ICE_EXIT_CODE : 1);
7671 fatal (const char *cmsgid, ...)
7675 va_start (ap, cmsgid);
7677 fprintf (stderr, "%s: ", programname);
7678 vfprintf (stderr, _(cmsgid), ap);
7680 fprintf (stderr, "\n");
7681 delete_temp_files ();
7685 /* The argument is actually c-format, not gcc-internal-format,
7686 but because functions with identical names are used through
7687 the rest of the compiler with gcc-internal-format, we just
7688 need to hope all users of these functions use the common
7689 subset between c-format and gcc-internal-format. */
7692 error (const char *gmsgid, ...)
7696 va_start (ap, gmsgid);
7697 fprintf (stderr, "%s: ", programname);
7698 vfprintf (stderr, _(gmsgid), ap);
7701 fprintf (stderr, "\n");
7705 notice (const char *cmsgid, ...)
7709 va_start (ap, cmsgid);
7710 vfprintf (stderr, _(cmsgid), ap);
7715 validate_switches_from_spec (const char *spec)
7717 const char *p = spec;
7720 if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{')))
7721 /* We have a switch spec. */
7722 p = validate_switches (p + 1);
7726 validate_all_switches (void)
7728 struct compiler *comp;
7729 struct spec_list *spec;
7731 for (comp = compilers; comp->spec; comp++)
7732 validate_switches_from_spec (comp->spec);
7734 /* Look through the linked list of specs read from the specs file. */
7735 for (spec = specs; spec; spec = spec->next)
7736 validate_switches_from_spec (*spec->ptr_spec);
7738 validate_switches_from_spec (link_command_spec);
7741 /* Look at the switch-name that comes after START
7742 and mark as valid all supplied switches that match it. */
7745 validate_switches (const char *start)
7747 const char *p = start;
7751 bool suffix = false;
7752 bool starred = false;
7754 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7763 if (*p == '.' || *p == ',')
7767 while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
7768 || *p == ',' || *p == '.' || *p == '@')
7773 starred = true, p++;
7779 /* Mark all matching switches as valid. */
7780 for (i = 0; i < n_switches; i++)
7781 if (!strncmp (switches[i].part1, atom, len)
7782 && (starred || switches[i].part1[len] == 0))
7783 switches[i].validated = 1;
7787 if (*p && (p[-1] == '|' || p[-1] == '&'))
7790 if (*p && p[-1] == ':')
7792 while (*p && *p != ';' && *p != '}')
7797 if (*p == '{' || *p == '<')
7798 p = validate_switches (p+1);
7799 else if (p[0] == 'W' && p[1] == '{')
7800 p = validate_switches (p+2);
7807 if (*p && p[-1] == ';')
7821 static struct mdswitchstr *mdswitches;
7822 static int n_mdswitches;
7824 /* Check whether a particular argument was used. The first time we
7825 canonicalize the switches to keep only the ones we care about. */
7828 used_arg (const char *p, int len)
7833 const char *replace;
7838 static struct mswitchstr *mswitches;
7839 static int n_mswitches;
7844 struct mswitchstr *matches;
7848 /* Break multilib_matches into the component strings of string
7849 and replacement string. */
7850 for (q = multilib_matches; *q != '\0'; q++)
7855 = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
7857 q = multilib_matches;
7866 fatal ("multilib spec '%s' is invalid", multilib_matches);
7870 matches[i].len = q - matches[i].str;
7872 matches[i].replace = ++q;
7873 while (*q != ';' && *q != '\0')
7876 goto invalid_matches;
7879 matches[i].rep_len = q - matches[i].replace;
7885 /* Now build a list of the replacement string for switches that we care
7886 about. Make sure we allocate at least one entry. This prevents
7887 xmalloc from calling fatal, and prevents us from re-executing this
7890 = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1));
7891 for (i = 0; i < n_switches; i++)
7892 if ((switches[i].live_cond & SWITCH_IGNORE) == 0)
7894 int xlen = strlen (switches[i].part1);
7895 for (j = 0; j < cnt; j++)
7896 if (xlen == matches[j].len
7897 && ! strncmp (switches[i].part1, matches[j].str, xlen))
7899 mswitches[n_mswitches].str = matches[j].replace;
7900 mswitches[n_mswitches].len = matches[j].rep_len;
7901 mswitches[n_mswitches].replace = (char *) 0;
7902 mswitches[n_mswitches].rep_len = 0;
7908 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7909 on the command line nor any options mutually incompatible with
7911 for (i = 0; i < n_mdswitches; i++)
7915 for (q = multilib_options; *q != '\0'; q++)
7921 while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
7922 || strchr (" /", q[mdswitches[i].len]) == NULL)
7924 while (*q != ' ' && *q != '/' && *q != '\0')
7931 if (*q != ' ' && *q != '\0')
7933 while (*r != ' ' && *r != '\0')
7936 while (*q != ' ' && *q != '/' && *q != '\0')
7939 if (used_arg (r, q - r))
7944 mswitches[n_mswitches].str = mdswitches[i].str;
7945 mswitches[n_mswitches].len = mdswitches[i].len;
7946 mswitches[n_mswitches].replace = (char *) 0;
7947 mswitches[n_mswitches].rep_len = 0;
7960 for (i = 0; i < n_mswitches; i++)
7961 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
7968 default_arg (const char *p, int len)
7972 for (i = 0; i < n_mdswitches; i++)
7973 if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
7979 /* Work out the subdirectory to use based on the options. The format of
7980 multilib_select is a list of elements. Each element is a subdirectory
7981 name followed by a list of options followed by a semicolon. The format
7982 of multilib_exclusions is the same, but without the preceding
7983 directory. First gcc will check the exclusions, if none of the options
7984 beginning with an exclamation point are present, and all of the other
7985 options are present, then we will ignore this completely. Passing
7986 that, gcc will consider each multilib_select in turn using the same
7987 rules for matching the options. If a match is found, that subdirectory
7991 set_multilib_dir (void)
7994 unsigned int this_path_len;
7995 const char *this_path, *this_arg;
7996 const char *start, *end;
7998 int ok, ndfltok, first;
8001 start = multilib_defaults;
8002 while (*start == ' ' || *start == '\t')
8004 while (*start != '\0')
8007 while (*start != ' ' && *start != '\t' && *start != '\0')
8009 while (*start == ' ' || *start == '\t')
8017 mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches);
8018 for (start = multilib_defaults; *start != '\0'; start = end + 1)
8020 while (*start == ' ' || *start == '\t')
8026 for (end = start + 1;
8027 *end != ' ' && *end != '\t' && *end != '\0'; end++)
8030 obstack_grow (&multilib_obstack, start, end - start);
8031 obstack_1grow (&multilib_obstack, 0);
8032 mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
8033 mdswitches[i++].len = end - start;
8040 p = multilib_exclusions;
8043 /* Ignore newlines. */
8050 /* Check the arguments. */
8057 fatal ("multilib exclusions '%s' is invalid",
8058 multilib_exclusions);
8068 while (*p != ' ' && *p != ';')
8071 goto invalid_exclusions;
8075 if (*this_arg != '!')
8083 ok = used_arg (this_arg, p - this_arg);
8098 p = multilib_select;
8101 /* Ignore newlines. */
8108 /* Get the initial path. */
8115 fatal ("multilib select '%s' is invalid",
8120 this_path_len = p - this_path;
8122 /* Check the arguments. */
8129 goto invalid_select;
8138 while (*p != ' ' && *p != ';')
8141 goto invalid_select;
8145 if (*this_arg != '!')
8153 /* If this is a default argument, we can just ignore it.
8154 This is true even if this_arg begins with '!'. Beginning
8155 with '!' does not mean that this argument is necessarily
8156 inappropriate for this library: it merely means that
8157 there is a more specific library which uses this
8158 argument. If this argument is a default, we need not
8159 consider that more specific library. */
8160 ok = used_arg (this_arg, p - this_arg);
8167 if (default_arg (this_arg, p - this_arg))
8176 if (this_path_len != 1
8177 || this_path[0] != '.')
8179 char *new_multilib_dir = XNEWVEC (char, this_path_len + 1);
8182 strncpy (new_multilib_dir, this_path, this_path_len);
8183 new_multilib_dir[this_path_len] = '\0';
8184 q = strchr (new_multilib_dir, ':');
8187 multilib_dir = new_multilib_dir;
8194 const char *q = this_path, *end = this_path + this_path_len;
8196 while (q < end && *q != ':')
8200 char *new_multilib_os_dir = XNEWVEC (char, end - q);
8201 memcpy (new_multilib_os_dir, q + 1, end - q - 1);
8202 new_multilib_os_dir[end - q - 1] = '\0';
8203 multilib_os_dir = new_multilib_os_dir;
8211 if (multilib_dir == NULL && multilib_os_dir != NULL
8212 && strcmp (multilib_os_dir, ".") == 0)
8214 free (CONST_CAST (char *, multilib_os_dir));
8215 multilib_os_dir = NULL;
8217 else if (multilib_dir != NULL && multilib_os_dir == NULL)
8218 multilib_os_dir = multilib_dir;
8221 /* Print out the multiple library subdirectory selection
8222 information. This prints out a series of lines. Each line looks
8223 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8224 required. Only the desired options are printed out, the negative
8225 matches. The options are print without a leading dash. There are
8226 no spaces to make it easy to use the information in the shell.
8227 Each subdirectory is printed only once. This assumes the ordering
8228 generated by the genmultilib script. Also, we leave out ones that match
8232 print_multilib_info (void)
8234 const char *p = multilib_select;
8235 const char *last_path = 0, *this_path;
8237 unsigned int last_path_len = 0;
8242 /* Ignore newlines. */
8249 /* Get the initial path. */
8256 fatal ("multilib select '%s' is invalid", multilib_select);
8262 /* When --disable-multilib was used but target defines
8263 MULTILIB_OSDIRNAMES, entries starting with .: are there just
8264 to find multilib_os_dir, so skip them from output. */
8265 if (this_path[0] == '.' && this_path[1] == ':')
8268 /* Check for matches with the multilib_exclusions. We don't bother
8269 with the '!' in either list. If any of the exclusion rules match
8270 all of its options with the select rule, we skip it. */
8272 const char *e = multilib_exclusions;
8273 const char *this_arg;
8278 /* Ignore newlines. */
8285 /* Check the arguments. */
8294 fatal ("multilib exclusion '%s' is invalid",
8295 multilib_exclusions);
8306 while (*e != ' ' && *e != ';')
8309 goto invalid_exclusion;
8317 int len = e - this_arg;
8320 goto invalid_select;
8324 while (*q != ' ' && *q != ';')
8327 goto invalid_select;
8331 if (! strncmp (arg, this_arg,
8332 (len < q - arg) ? q - arg : len)
8333 || default_arg (this_arg, e - this_arg))
8363 /* If this is a duplicate, skip it. */
8364 skip = (last_path != 0
8365 && (unsigned int) (p - this_path) == last_path_len
8366 && ! strncmp (last_path, this_path, last_path_len));
8368 last_path = this_path;
8369 last_path_len = p - this_path;
8372 /* If this directory requires any default arguments, we can skip
8373 it. We will already have printed a directory identical to
8374 this one which does not require that default argument. */
8385 goto invalid_select;
8392 while (*q != ' ' && *q != ';')
8395 goto invalid_select;
8400 && default_arg (arg, q - arg))
8415 for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
8426 goto invalid_select;
8434 use_arg = *p != '!';
8439 while (*p != ' ' && *p != ';')
8442 goto invalid_select;
8454 /* If there are extra options, print them now. */
8455 if (multilib_extra && *multilib_extra)
8457 int print_at = TRUE;
8460 for (q = multilib_extra; *q != '\0'; q++)
8481 /* getenv built-in spec function.
8483 Returns the value of the environment variable given by its first
8484 argument, concatenated with the second argument. If the
8485 environment variable is not defined, a fatal error is issued. */
8488 getenv_spec_function (int argc, const char **argv)
8498 value = getenv (argv[0]);
8500 fatal ("environment variable \"%s\" not defined", argv[0]);
8502 /* We have to escape every character of the environment variable so
8503 they are not interpreted as active spec characters. A
8504 particularly painful case is when we are reading a variable
8505 holding a windows path complete with \ separators. */
8506 len = strlen (value) * 2 + strlen (argv[1]) + 1;
8507 result = XNEWVAR (char, len);
8508 for (ptr = result; *value; ptr += 2)
8514 strcpy (ptr, argv[1]);
8519 /* if-exists built-in spec function.
8521 Checks to see if the file specified by the absolute pathname in
8522 ARGS exists. Returns that pathname if found.
8524 The usual use for this function is to check for a library file
8525 (whose name has been expanded with %s). */
8528 if_exists_spec_function (int argc, const char **argv)
8530 /* Must have only one argument. */
8531 if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
8537 /* if-exists-else built-in spec function.
8539 This is like if-exists, but takes an additional argument which
8540 is returned if the first argument does not exist. */
8543 if_exists_else_spec_function (int argc, const char **argv)
8545 /* Must have exactly two arguments. */
8549 if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
8555 /* replace-outfile built-in spec function.
8557 This looks for the first argument in the outfiles array's name and
8558 replaces it with the second argument. */
8561 replace_outfile_spec_function (int argc, const char **argv)
8564 /* Must have exactly two arguments. */
8568 for (i = 0; i < n_infiles; i++)
8570 if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
8571 outfiles[i] = xstrdup (argv[1]);
8576 /* Given two version numbers, compares the two numbers.
8577 A version number must match the regular expression
8578 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8581 compare_version_strings (const char *v1, const char *v2)
8586 if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8587 REG_EXTENDED | REG_NOSUB) != 0)
8589 rresult = regexec (&r, v1, 0, NULL, 0);
8590 if (rresult == REG_NOMATCH)
8591 fatal ("invalid version number `%s'", v1);
8592 else if (rresult != 0)
8594 rresult = regexec (&r, v2, 0, NULL, 0);
8595 if (rresult == REG_NOMATCH)
8596 fatal ("invalid version number `%s'", v2);
8597 else if (rresult != 0)
8600 return strverscmp (v1, v2);
8604 /* version_compare built-in spec function.
8606 This takes an argument of the following form:
8608 <comparison-op> <arg1> [<arg2>] <switch> <result>
8610 and produces "result" if the comparison evaluates to true,
8611 and nothing if it doesn't.
8613 The supported <comparison-op> values are:
8615 >= true if switch is a later (or same) version than arg1
8617 < true if switch is an earlier version than arg1
8619 >< true if switch is arg1 or later, and earlier than arg2
8620 <> true if switch is earlier than arg1 or is arg2 or later
8622 If the switch is not present, the condition is false unless
8623 the first character of the <comparison-op> is '!'.
8626 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8627 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8630 version_compare_spec_function (int argc, const char **argv)
8634 const char *switch_value = NULL;
8639 fatal ("too few arguments to %%:version-compare");
8640 if (argv[0][0] == '\0')
8642 if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
8644 if (argc != nargs + 3)
8645 fatal ("too many arguments to %%:version-compare");
8647 switch_len = strlen (argv[nargs + 1]);
8648 for (i = 0; i < n_switches; i++)
8649 if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
8650 && check_live_switch (i, switch_len))
8651 switch_value = switches[i].part1 + switch_len;
8653 if (switch_value == NULL)
8657 comp1 = compare_version_strings (switch_value, argv[1]);
8659 comp2 = compare_version_strings (switch_value, argv[2]);
8661 comp2 = -1; /* This value unused. */
8664 switch (argv[0][0] << 8 | argv[0][1])
8666 case '>' << 8 | '=':
8667 result = comp1 >= 0;
8669 case '!' << 8 | '<':
8670 result = comp1 >= 0 || switch_value == NULL;
8675 case '!' << 8 | '>':
8676 result = comp1 < 0 || switch_value == NULL;
8678 case '>' << 8 | '<':
8679 result = comp1 >= 0 && comp2 < 0;
8681 case '<' << 8 | '>':
8682 result = comp1 < 0 || comp2 >= 0;
8686 fatal ("unknown operator '%s' in %%:version-compare", argv[0]);
8691 return argv[nargs + 2];
8694 /* %:include builtin spec function. This differs from %include in that it
8695 can be nested inside a spec, and thus be conditionalized. It takes
8696 one argument, the filename, and looks for it in the startfile path.
8697 The result is always NULL, i.e. an empty expansion. */
8700 include_spec_function (int argc, const char **argv)
8707 file = find_a_file (&startfile_prefixes, argv[0], R_OK, true);
8708 read_specs (file ? file : argv[0], FALSE);
8713 /* %:print-asm-header spec function. Print a banner to say that the
8714 following output is from the assembler. */
8717 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED,
8718 const char **argv ATTRIBUTE_UNUSED)
8720 printf (_("Assembler options\n=================\n\n"));
8721 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8726 /* Compute a timestamp to initialize flag_random_seed. */
8729 get_local_tick (void)
8733 /* Get some more or less random data. */
8734 #ifdef HAVE_GETTIMEOFDAY
8738 gettimeofday (&tv, NULL);
8739 ret = tv.tv_sec * 1000 + tv.tv_usec / 1000;
8743 time_t now = time (NULL);
8745 if (now != (time_t)-1)
8746 ret = (unsigned) now;
8753 /* %:compare-debug-dump-opt spec function. Save the last argument,
8754 expected to be the last -fdump-final-insns option, or generate a
8758 compare_debug_dump_opt_spec_function (int arg,
8759 const char **argv ATTRIBUTE_UNUSED)
8764 static char random_seed[HOST_BITS_PER_WIDE_INT / 4 + 3];
8767 fatal ("too many arguments to %%:compare-debug-dump-opt");
8769 do_spec_2 ("%{fdump-final-insns=*:%*}");
8770 do_spec_1 (" ", 0, NULL);
8772 if (argbuf_index > 0 && strcmp (argv[argbuf_index - 1], "."))
8777 name = xstrdup (argv[argbuf_index - 1]);
8782 const char *ext = NULL;
8784 if (argbuf_index > 0)
8786 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8789 else if (!compare_debug)
8792 do_spec_2 ("%g.gkd");
8794 do_spec_1 (" ", 0, NULL);
8796 gcc_assert (argbuf_index > 0);
8798 name = concat (argbuf[argbuf_index - 1], ext, NULL);
8800 ret = concat ("-fdump-final-insns=", name, NULL);
8803 which = compare_debug < 0;
8804 debug_check_temp_file[which] = name;
8808 unsigned HOST_WIDE_INT value = get_local_tick () ^ getpid ();
8810 sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value);
8814 ret = concat ("%{!frandom-seed=*:-frandom-seed=", random_seed, "} ",
8823 static const char *debug_auxbase_opt;
8825 /* %:compare-debug-self-opt spec function. Expands to the options
8826 that are to be passed in the second compilation of
8830 compare_debug_self_opt_spec_function (int arg,
8831 const char **argv ATTRIBUTE_UNUSED)
8834 fatal ("too many arguments to %%:compare-debug-self-opt");
8836 if (compare_debug >= 0)
8839 do_spec_2 ("%{c|S:%{o*:%*}}");
8840 do_spec_1 (" ", 0, NULL);
8842 if (argbuf_index > 0)
8843 debug_auxbase_opt = concat ("-auxbase-strip ",
8844 argbuf[argbuf_index - 1],
8847 debug_auxbase_opt = NULL;
8850 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8851 %<fdump-final-insns=* -w -S -o %j \
8852 %{!fcompare-debug-second:-fcompare-debug-second} \
8853 ", compare_debug_opt, NULL);
8856 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8857 options that are to be passed in the second compilation of
8858 compare-debug. It expects, as an argument, the basename of the
8859 current input file name, with the .gk suffix appended to it. */
8862 compare_debug_auxbase_opt_spec_function (int arg,
8869 fatal ("too few arguments to %%:compare-debug-auxbase-opt");
8872 fatal ("too many arguments to %%:compare-debug-auxbase-opt");
8874 if (compare_debug >= 0)
8877 len = strlen (argv[0]);
8878 if (len < 3 || strcmp (argv[0] + len - 3, ".gk") != 0)
8879 fatal ("argument to %%:compare-debug-auxbase-opt does not end in .gk");
8881 if (debug_auxbase_opt)
8882 return debug_auxbase_opt;
8884 #define OPT "-auxbase "
8887 name = (char*) xmalloc (sizeof (OPT) + len);
8888 memcpy (name, OPT, sizeof (OPT) - 1);
8889 memcpy (name + sizeof (OPT) - 1, argv[0], len);
8890 name[sizeof (OPT) - 1 + len] = '\0';
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