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
4 Free Software Foundation, Inc.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 /* This program is the user interface to the C compiler and possibly to
23 other compilers. It is used because compilation is a complicated procedure
24 which involves running several programs and passing temporary files between
25 them, forwarding the users switches to those programs selectively,
26 and deleting the temporary files at the end.
28 CC recognizes how to compile each input file by suffixes in the file names.
29 Once it knows which kind of compilation to perform, the procedure for
30 compilation is specified by a string called a "spec". */
32 /* A Short Introduction to Adding a Command-Line Option.
34 Before adding a command-line option, consider if it is really
35 necessary. Each additional command-line option adds complexity and
36 is difficult to remove in subsequent versions.
38 In the following, consider adding the command-line argument
41 1. Each command-line option is specified in the specs file. The
42 notation is described below in the comment entitled "The Specs
45 2. In this file, add an entry to "option_map" equating the long
46 `--' argument version and any shorter, single letter version. Read
47 the comments in the declaration of "struct option_map" for an
48 explanation. Do not omit the first `-'.
50 3. Look in the "specs" file to determine which program or option
51 list should be given the argument, e.g., "cc1_options". Add the
52 appropriate syntax for the shorter option version to the
53 corresponding "const char *" entry in this file. Omit the first
54 `-' from the option. For example, use `-bar', rather than `--bar'.
56 4. If the argument takes an argument, e.g., `--baz argument1',
57 modify either DEFAULT_SWITCH_TAKES_ARG or
58 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
61 5. Document the option in this file's display_help(). If the
62 option is passed to a subprogram, modify its corresponding
63 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
66 6. Compile and test. Make sure that your new specs file is being
67 read. For example, use a debugger to investigate the value of
68 "specs_file" in main(). */
72 #include "coretypes.h"
73 #include "multilib.h" /* before tm.h */
76 #if ! defined( SIGCHLD ) && defined( SIGCLD )
77 # define SIGCHLD SIGCLD
88 # include <sys/mman.h>
90 /* This is on Solaris. */
91 # include <sys/types.h>
96 # define MAP_FAILED ((void *)-1)
99 /* By default there is no special suffix for target executables. */
100 /* FIXME: when autoconf is fixed, remove the host check - dj */
101 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
102 #define HAVE_TARGET_EXECUTABLE_SUFFIX
105 /* By default there is no special suffix for host executables. */
106 #ifdef HOST_EXECUTABLE_SUFFIX
107 #define HAVE_HOST_EXECUTABLE_SUFFIX
109 #define HOST_EXECUTABLE_SUFFIX ""
112 /* By default, the suffix for target object files is ".o". */
113 #ifdef TARGET_OBJECT_SUFFIX
114 #define HAVE_TARGET_OBJECT_SUFFIX
116 #define TARGET_OBJECT_SUFFIX ".o"
119 static const char dir_separator_str[] = { DIR_SEPARATOR, 0 };
121 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
122 #ifndef LIBRARY_PATH_ENV
123 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
127 #define kill(p,s) raise(s)
130 /* If a stage of compilation returns an exit status >= 1,
131 compilation of that file ceases. */
133 #define MIN_FATAL_STATUS 1
135 /* Flag set by cppspec.c to 1. */
138 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
139 static bool at_file_supplied;
141 /* Flag saying to pass the greatest exit code returned by a sub-process
142 to the calling program. */
143 static int pass_exit_codes;
145 /* Definition of string containing the arguments given to configure. */
146 #include "configargs.h"
148 /* Flag saying to print the directories gcc will search through looking for
149 programs, libraries, etc. */
151 static int print_search_dirs;
153 /* Flag saying to print the full filename of this file
154 as found through our usual search mechanism. */
156 static const char *print_file_name = NULL;
158 /* As print_file_name, but search for executable file. */
160 static const char *print_prog_name = NULL;
162 /* Flag saying to print the relative path we'd use to
163 find libgcc.a given the current compiler flags. */
165 static int print_multi_directory;
167 static int print_sysroot;
169 /* Flag saying to print the relative path we'd use to
170 find OS libraries given the current compiler flags. */
172 static int print_multi_os_directory;
174 /* Flag saying to print the list of subdirectories and
175 compiler flags used to select them in a standard form. */
177 static int print_multi_lib;
179 /* Flag saying to print the command line options understood by gcc and its
182 static int print_help_list;
184 /* Flag saying to print the version of gcc and its sub-processes. */
186 static int print_version;
188 /* Flag saying to print the sysroot suffix used for searching for
191 static int print_sysroot_headers_suffix;
193 /* Flag indicating whether we should print the command and arguments */
195 static int verbose_flag;
197 /* Flag indicating whether we should ONLY print the command and
198 arguments (like verbose_flag) without executing the command.
199 Displayed arguments are quoted so that the generated command
200 line is suitable for execution. This is intended for use in
201 shell scripts to capture the driver-generated command line. */
202 static int verbose_only_flag;
204 /* Flag indicating how to print command line options of sub-processes. */
206 static int print_subprocess_help;
208 /* Flag indicating whether we should report subprocess execution times
209 (if this is supported by the system - see pexecute.c). */
211 static int report_times;
213 /* Whether we should report subprocess execution times to a file. */
215 FILE *report_times_to_file = NULL;
217 /* Nonzero means place this string before uses of /, so that include
218 and library files can be found in an alternate location. */
220 #ifdef TARGET_SYSTEM_ROOT
221 static const char *target_system_root = TARGET_SYSTEM_ROOT;
223 static const char *target_system_root = 0;
226 /* Nonzero means pass the updated target_system_root to the compiler. */
228 static int target_system_root_changed;
230 /* Nonzero means append this string to target_system_root. */
232 static const char *target_sysroot_suffix = 0;
234 /* Nonzero means append this string to target_system_root for headers. */
236 static const char *target_sysroot_hdrs_suffix = 0;
238 /* Nonzero means write "temp" files in source directory
239 and use the source file's name in them, and don't delete them. */
241 static enum save_temps {
242 SAVE_TEMPS_NONE, /* no -save-temps */
243 SAVE_TEMPS_CWD, /* -save-temps in current directory */
244 SAVE_TEMPS_OBJ /* -save-temps in object directory */
247 /* Output file to use to get the object directory for -save-temps=obj */
248 static char *save_temps_prefix = 0;
249 static size_t save_temps_length = 0;
251 /* Nonzero means pass multiple source files to the compiler at one time. */
253 static int combine_flag = 0;
255 /* Nonzero means use pipes to communicate between subprocesses.
256 Overridden by either of the above two flags. */
258 static int use_pipes;
260 /* The compiler version. */
262 static const char *compiler_version;
264 /* The target version specified with -V */
266 static const char *const spec_version = DEFAULT_TARGET_VERSION;
268 /* The target machine specified with -b. */
270 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
272 /* Nonzero if cross-compiling.
273 When -b is used, the value comes from the `specs' file. */
275 #ifdef CROSS_DIRECTORY_STRUCTURE
276 static const char *cross_compile = "1";
278 static const char *cross_compile = "0";
281 #ifdef MODIFY_TARGET_NAME
283 /* Information on how to alter the target name based on a command-line
284 switch. The only case we support now is simply appending or deleting a
285 string to or from the end of the first part of the configuration name. */
287 enum add_del {ADD, DELETE};
289 static const struct modify_target
291 const char *const sw;
292 const enum add_del add_del;
293 const char *const str;
295 modify_target[] = MODIFY_TARGET_NAME;
298 /* The number of errors that have occurred; the link phase will not be
299 run if this is nonzero. */
300 static int error_count = 0;
302 /* Greatest exit code of sub-processes that has been encountered up to
304 static int greatest_status = 1;
306 /* This is the obstack which we use to allocate many strings. */
308 static struct obstack obstack;
310 /* This is the obstack to build an environment variable to pass to
311 collect2 that describes all of the relevant switches of what to
312 pass the compiler in building the list of pointers to constructors
315 static struct obstack collect_obstack;
317 /* This is a list of a wrapper program and its arguments.
318 e.g. wrapper_string of "strace,-c"
319 will cause all programs to run as
320 strace -c program arguments
323 static const char *wrapper_string;
325 /* Forward declaration for prototypes. */
329 static void init_spec (void);
330 static void store_arg (const char *, int, int);
331 static void insert_wrapper (const char *);
332 static char *load_specs (const char *);
333 static void read_specs (const char *, int);
334 static void set_spec (const char *, const char *);
335 static struct compiler *lookup_compiler (const char *, size_t, const char *);
336 static char *build_search_list (const struct path_prefix *, const char *,
338 static void xputenv (const char *);
339 static void putenv_from_prefixes (const struct path_prefix *, const char *,
341 static int access_check (const char *, int);
342 static char *find_a_file (const struct path_prefix *, const char *, int, bool);
343 static void add_prefix (struct path_prefix *, const char *, const char *,
345 static void add_sysrooted_prefix (struct path_prefix *, const char *,
346 const char *, int, int, int);
347 static void translate_options (int *, const char *const **);
348 static char *skip_whitespace (char *);
349 static void delete_if_ordinary (const char *);
350 static void delete_temp_files (void);
351 static void delete_failure_queue (void);
352 static void clear_failure_queue (void);
353 static int check_live_switch (int, int);
354 static const char *handle_braces (const char *);
355 static inline bool input_suffix_matches (const char *, const char *);
356 static inline bool switch_matches (const char *, const char *, int);
357 static inline void mark_matching_switches (const char *, const char *, int);
358 static inline void process_marked_switches (void);
359 static const char *process_brace_body (const char *, const char *, const char *, int, int);
360 static const struct spec_function *lookup_spec_function (const char *);
361 static const char *eval_spec_function (const char *, const char *);
362 static const char *handle_spec_function (const char *);
363 static char *save_string (const char *, int);
364 static void set_collect_gcc_options (void);
365 static int do_spec_1 (const char *, int, const char *);
366 static int do_spec_2 (const char *);
367 static void do_option_spec (const char *, const char *);
368 static void do_self_spec (const char *);
369 static const char *find_file (const char *);
370 static int is_directory (const char *, bool);
371 static const char *validate_switches (const char *);
372 static void validate_all_switches (void);
373 static inline void validate_switches_from_spec (const char *);
374 static void give_switch (int, int);
375 static int used_arg (const char *, int);
376 static int default_arg (const char *, int);
377 static void set_multilib_dir (void);
378 static void print_multilib_info (void);
379 static void perror_with_name (const char *);
380 static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
381 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1;
382 static void display_help (void);
383 static void add_preprocessor_option (const char *, int);
384 static void add_assembler_option (const char *, int);
385 static void add_linker_option (const char *, int);
386 static void process_command (int, const char **);
387 static int execute (void);
388 static void alloc_args (void);
389 static void clear_args (void);
390 static void fatal_error (int);
391 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
392 static void init_gcc_specs (struct obstack *, const char *, const char *,
395 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
396 static const char *convert_filename (const char *, int, int);
399 static const char *getenv_spec_function (int, const char **);
400 static const char *if_exists_spec_function (int, const char **);
401 static const char *if_exists_else_spec_function (int, const char **);
402 static const char *replace_outfile_spec_function (int, const char **);
403 static const char *version_compare_spec_function (int, const char **);
404 static const char *include_spec_function (int, const char **);
405 static const char *print_asm_header_spec_function (int, const char **);
406 static const char *compare_debug_dump_opt_spec_function (int, const char **);
407 static const char *compare_debug_self_opt_spec_function (int, const char **);
408 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
410 /* The Specs Language
412 Specs are strings containing lines, each of which (if not blank)
413 is made up of a program name, and arguments separated by spaces.
414 The program name must be exact and start from root, since no path
415 is searched and it is unreliable to depend on the current working directory.
416 Redirection of input or output is not supported; the subprograms must
417 accept filenames saying what files to read and write.
419 In addition, the specs can contain %-sequences to substitute variable text
420 or for conditional text. Here is a table of all defined %-sequences.
421 Note that spaces are not generated automatically around the results of
422 expanding these sequences; therefore, you can concatenate them together
423 or with constant text in a single argument.
425 %% substitute one % into the program name or argument.
426 %i substitute the name of the input file being processed.
427 %b substitute the basename of the input file being processed.
428 This is the substring up to (and not including) the last period
429 and not including the directory unless -save-temps was specified
430 to put temporaries in a different location.
431 %B same as %b, but include the file suffix (text after the last period).
433 substitute a file name that has suffix SUFFIX and is chosen
434 once per compilation, and mark the argument a la %d. To reduce
435 exposure to denial-of-service attacks, the file name is now
436 chosen in a way that is hard to predict even when previously
437 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
438 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
439 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
440 had been pre-processed. Previously, %g was simply substituted
441 with a file name chosen once per compilation, without regard
442 to any appended suffix (which was therefore treated just like
443 ordinary text), making such attacks more likely to succeed.
445 like %g, but if -pipe is in effect, expands simply to "-".
447 like %g, but if -pipe is in effect, expands to nothing. (We have both
448 %| and %m to accommodate differences between system assemblers; see
449 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
451 like %g, but generates a new temporary file name even if %uSUFFIX
454 substitutes the last file name generated with %uSUFFIX, generating a
455 new one if there is no such last file name. In the absence of any
456 %uSUFFIX, this is just like %gSUFFIX, except they don't share
457 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
458 would involve the generation of two distinct file names, one
459 for each `%g.s' and another for each `%U.s'. Previously, %U was
460 simply substituted with a file name chosen for the previous %u,
461 without regard to any appended suffix.
463 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
464 writable, and if save-temps is off; otherwise, substitute the name
465 of a temporary file, just like %u. This temporary file is not
466 meant for communication between processes, but rather as a junk
469 substitutes .SUFFIX for the suffixes of a matched switch's args when
470 it is subsequently output with %*. SUFFIX is terminated by the next
472 %d marks the argument containing or following the %d as a
473 temporary file name, so that that file will be deleted if GCC exits
474 successfully. Unlike %g, this contributes no text to the argument.
475 %w marks the argument containing or following the %w as the
476 "output file" of this compilation. This puts the argument
477 into the sequence of arguments that %o will substitute later.
478 %V indicates that this compilation produces no "output file".
480 like %{...} but mark last argument supplied within
481 as a file to be deleted on failure.
482 %o substitutes the names of all the output files, with spaces
483 automatically placed around them. You should write spaces
484 around the %o as well or the results are undefined.
485 %o is for use in the specs for running the linker.
486 Input files whose names have no recognized suffix are not compiled
487 at all, but they are included among the output files, so they will
489 %O substitutes the suffix for object files. Note that this is
490 handled specially when it immediately follows %g, %u, or %U
491 (with or without a suffix argument) because of the need for
492 those to form complete file names. The handling is such that
493 %O is treated exactly as if it had already been substituted,
494 except that %g, %u, and %U do not currently support additional
495 SUFFIX characters following %O as they would following, for
497 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
498 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
499 and -B options) and -imultilib as necessary.
500 %s current argument is the name of a library or startup file of some sort.
501 Search for that file in a standard list of directories
502 and substitute the full name found.
503 %eSTR Print STR as an error message. STR is terminated by a newline.
504 Use this when inconsistent options are detected.
505 %nSTR Print STR as a notice. STR is terminated by a newline.
506 %x{OPTION} Accumulate an option for %X.
507 %X Output the accumulated linker options specified by compilations.
508 %Y Output the accumulated assembler options specified by compilations.
509 %Z Output the accumulated preprocessor options specified by compilations.
510 %a process ASM_SPEC as a spec.
511 This allows config.h to specify part of the spec for running as.
512 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
513 used here. This can be used to run a post-processor after the
514 assembler has done its job.
515 %D Dump out a -L option for each directory in startfile_prefixes.
516 If multilib_dir is set, extra entries are generated with it affixed.
517 %l process LINK_SPEC as a spec.
518 %L process LIB_SPEC as a spec.
519 %G process LIBGCC_SPEC as a spec.
520 %R Output the concatenation of target_system_root and
521 target_sysroot_suffix.
522 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
523 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
524 %C process CPP_SPEC as a spec.
525 %1 process CC1_SPEC as a spec.
526 %2 process CC1PLUS_SPEC as a spec.
527 %* substitute the variable part of a matched option. (See below.)
528 Note that each comma in the substituted string is replaced by
530 %<S remove all occurrences of -S from the command line.
531 Note - this command is position dependent. % commands in the
532 spec string before this one will see -S, % commands in the
533 spec string after this one will not.
534 %<S* remove all occurrences of all switches beginning with -S from the
537 Call the named function FUNCTION, passing it ARGS. ARGS is
538 first processed as a nested spec string, then split into an
539 argument vector in the usual fashion. The function returns
540 a string which is processed as if it had appeared literally
541 as part of the current spec.
542 %{S} substitutes the -S switch, if that switch was given to GCC.
543 If that switch was not specified, this substitutes nothing.
544 Here S is a metasyntactic variable.
545 %{S*} substitutes all the switches specified to GCC whose names start
546 with -S. This is used for -o, -I, etc; switches that take
547 arguments. GCC considers `-o foo' as being one switch whose
548 name starts with `o'. %{o*} would substitute this text,
549 including the space; thus, two arguments would be generated.
550 %{S*&T*} likewise, but preserve order of S and T options (the order
551 of S and T in the spec is not significant). Can be any number
552 of ampersand-separated variables; for each the wild card is
553 optional. Useful for CPP as %{D*&U*&A*}.
555 %{S:X} substitutes X, if the -S switch was given to GCC.
556 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
557 %{S*:X} substitutes X if one or more switches whose names start
558 with -S was given to GCC. Normally X is substituted only
559 once, no matter how many such switches appeared. However,
560 if %* appears somewhere in X, then X will be substituted
561 once for each matching switch, with the %* replaced by the
562 part of that switch that matched the '*'.
563 %{.S:X} substitutes X, if processing a file with suffix S.
564 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
565 %{,S:X} substitutes X, if processing a file which will use spec S.
566 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
568 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
569 combined with '!', '.', ',', and '*' as above binding stronger
571 If %* appears in X, all of the alternatives must be starred, and
572 only the first matching alternative is substituted.
573 %{S:X; if S was given to GCC, substitutes X;
574 T:Y; else if T was given to GCC, substitutes Y;
575 :D} else substitutes D. There can be as many clauses as you need.
576 This may be combined with '.', '!', ',', '|', and '*' as above.
578 %(Spec) processes a specification defined in a specs file as *Spec:
579 %[Spec] as above, but put __ around -D arguments
581 The conditional text X in a %{S:X} or similar construct may contain
582 other nested % constructs or spaces, or even newlines. They are
583 processed as usual, as described above. Trailing white space in X is
584 ignored. White space may also appear anywhere on the left side of the
585 colon in these constructs, except between . or * and the corresponding
588 The -O, -f, -m, and -W switches are handled specifically in these
589 constructs. If another value of -O or the negated form of a -f, -m, or
590 -W switch is found later in the command line, the earlier switch
591 value is ignored, except with {S*} where S is just one letter; this
592 passes all matching options.
594 The character | at the beginning of the predicate text is used to indicate
595 that a command should be piped to the following command, but only if -pipe
598 Note that it is built into GCC which switches take arguments and which
599 do not. You might think it would be useful to generalize this to
600 allow each compiler's spec to say which switches take arguments. But
601 this cannot be done in a consistent fashion. GCC cannot even decide
602 which input files have been specified without knowing which switches
603 take arguments, and it must know which input files to compile in order
604 to tell which compilers to run.
606 GCC also knows implicitly that arguments starting in `-l' are to be
607 treated as compiler output files, and passed to the linker in their
608 proper position among the other output files. */
610 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
612 /* config.h can define ASM_SPEC to provide extra args to the assembler
613 or extra switch-translations. */
618 /* config.h can define ASM_FINAL_SPEC to run a post processor after
619 the assembler has run. */
620 #ifndef ASM_FINAL_SPEC
621 #define ASM_FINAL_SPEC ""
624 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
625 or extra switch-translations. */
630 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
631 or extra switch-translations. */
636 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
637 or extra switch-translations. */
639 #define CC1PLUS_SPEC ""
642 /* config.h can define LINK_SPEC to provide extra args to the linker
643 or extra switch-translations. */
648 /* config.h can define LIB_SPEC to override the default libraries. */
650 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
655 /* XXX: valid only for GNU ld */
656 /* XXX: should exactly match hooks provided by libmudflap.a */
657 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
658 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
659 --wrap=mmap --wrap=munmap --wrap=alloca\
660 } %{fmudflapth: --wrap=pthread_create\
661 }} %{fmudflap|fmudflapth: --wrap=main}"
664 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
667 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
670 #if defined(REAL_LIBGCC_SPEC)
671 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
672 #elif defined(LINK_LIBGCC_SPECIAL_1)
673 /* Have gcc do the search for libgcc.a. */
674 #define LIBGCC_SPEC "libgcc.a%s"
676 #define LIBGCC_SPEC "-lgcc"
680 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
681 #ifndef STARTFILE_SPEC
682 #define STARTFILE_SPEC \
683 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
686 /* config.h can define SWITCHES_NEED_SPACES to control which options
687 require spaces between the option and the argument.
689 We define SWITCHES_NEED_SPACES to include "o" by default. This
690 causes "-ofoo.o" to be split into "-o foo.o" during the initial
691 processing of the command-line, before being seen by the specs
692 machinery. This makes sure we record "foo.o" as the temporary file
693 to be deleted in the case of error, rather than "-ofoo.o". */
694 #ifndef SWITCHES_NEED_SPACES
695 #define SWITCHES_NEED_SPACES "o"
698 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
700 #define ENDFILE_SPEC ""
704 #define LINKER_NAME "collect2"
707 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
708 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
713 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
715 #ifndef ASM_DEBUG_SPEC
716 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
717 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
718 # define ASM_DEBUG_SPEC \
719 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
720 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
721 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
723 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
724 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
726 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
727 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
731 #ifndef ASM_DEBUG_SPEC
732 # define ASM_DEBUG_SPEC ""
735 /* Here is the spec for running the linker, after compiling all files. */
737 /* This is overridable by the target in case they need to specify the
738 -lgcc and -lc order specially, yet not require them to override all
739 of LINK_COMMAND_SPEC. */
740 #ifndef LINK_GCC_C_SEQUENCE_SPEC
741 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
744 #ifndef LINK_SSP_SPEC
745 #ifdef TARGET_LIBC_PROVIDES_SSP
746 #define LINK_SSP_SPEC "%{fstack-protector:}"
748 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
752 #ifndef LINK_PIE_SPEC
754 #define LINK_PIE_SPEC "%{pie:-pie} "
756 #define LINK_PIE_SPEC "%{pie:} "
760 #ifndef LINK_BUILDID_SPEC
761 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
762 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
767 /* -u* was put back because both BSD and SysV seem to support it. */
768 /* %{static:} simply prevents an error message if the target machine
769 doesn't handle -static. */
770 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
771 scripts which exist in user specified directories, or in standard
773 /* We pass any -flto and -fwhopr flags on to the linker, which is expected
774 to understand them. In practice, this means it had better be collect2. */
775 #ifndef LINK_COMMAND_SPEC
776 #define LINK_COMMAND_SPEC "\
777 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
779 %{fuse-linker-plugin: \
780 -plugin %(linker_plugin_file) \
781 -plugin-opt=%(lto_wrapper) \
782 -plugin-opt=%(lto_gcc) \
783 %{static|static-libgcc:-plugin-opt=-pass-through=%(lto_libgcc)} \
784 %{static:-plugin-opt=-pass-through=-lc} \
785 %{O*:-plugin-opt=-O%*} \
786 %{w:-plugin-opt=-w} \
787 %{f*:-plugin-opt=-f%*} \
789 %{flto} %{fwhopr} %l " LINK_PIE_SPEC \
790 "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
791 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
792 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
793 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
794 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
795 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
796 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
799 #ifndef LINK_LIBGCC_SPEC
800 /* Generate -L options for startfile prefix list. */
801 # define LINK_LIBGCC_SPEC "%D"
804 #ifndef STARTFILE_PREFIX_SPEC
805 # define STARTFILE_PREFIX_SPEC ""
809 # define SYSROOT_SPEC "--sysroot=%R"
812 #ifndef SYSROOT_SUFFIX_SPEC
813 # define SYSROOT_SUFFIX_SPEC ""
816 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
817 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
820 static const char *asm_debug;
821 static const char *cpp_spec = CPP_SPEC;
822 static const char *cc1_spec = CC1_SPEC;
823 static const char *cc1plus_spec = CC1PLUS_SPEC;
824 static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
825 static const char *link_ssp_spec = LINK_SSP_SPEC;
826 static const char *asm_spec = ASM_SPEC;
827 static const char *asm_final_spec = ASM_FINAL_SPEC;
828 static const char *link_spec = LINK_SPEC;
829 static const char *lib_spec = LIB_SPEC;
830 static const char *mfwrap_spec = MFWRAP_SPEC;
831 static const char *mflib_spec = MFLIB_SPEC;
832 static const char *link_gomp_spec = "";
833 static const char *libgcc_spec = LIBGCC_SPEC;
834 static const char *endfile_spec = ENDFILE_SPEC;
835 static const char *startfile_spec = STARTFILE_SPEC;
836 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
837 static const char *linker_name_spec = LINKER_NAME;
838 static const char *linker_plugin_file_spec = "";
839 static const char *lto_wrapper_spec = "";
840 static const char *lto_gcc_spec = "";
841 static const char *lto_libgcc_spec = "";
842 static const char *link_command_spec = LINK_COMMAND_SPEC;
843 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
844 static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
845 static const char *sysroot_spec = SYSROOT_SPEC;
846 static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
847 static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
849 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
850 There should be no need to override these in target dependent files,
851 but we need to copy them to the specs file so that newer versions
852 of the GCC driver can correctly drive older tool chains with the
853 appropriate -B options. */
855 /* When cpplib handles traditional preprocessing, get rid of this, and
856 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
857 that we default the front end language better. */
858 static const char *trad_capable_cpp =
859 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
861 /* We don't wrap .d files in %W{} since a missing .d file, and
862 therefore no dependency entry, confuses make into thinking a .o
863 file that happens to exist is up-to-date. */
864 static const char *cpp_unique_options =
865 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
866 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
867 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
868 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
869 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
870 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
871 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
872 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
873 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
874 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
877 /* This contains cpp options which are common with cc1_options and are passed
878 only when preprocessing only to avoid duplication. We pass the cc1 spec
879 options to the preprocessor so that it the cc1 spec may manipulate
880 options used to set target flags. Those special target flags settings may
881 in turn cause preprocessor symbols to be defined specially. */
882 static const char *cpp_options =
883 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
884 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
885 %{undef} %{save-temps*:-fpch-preprocess}";
887 /* This contains cpp options which are not passed when the preprocessor
888 output will be used by another program. */
889 static const char *cpp_debug_options = "%{d*}";
891 /* NB: This is shared amongst all front-ends, except for Ada. */
892 static const char *cc1_options =
893 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
894 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
895 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
896 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
897 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
898 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
899 %{Qn:-fno-ident} %{--help:--help}\
900 %{--target-help:--target-help}\
901 %{--help=*:--help=%(VALUE)}\
902 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
903 %{fsyntax-only:-o %j} %{-param*}\
904 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
905 %{coverage:-fprofile-arcs -ftest-coverage}";
907 static const char *asm_options =
908 "%{--target-help:%:print-asm-header()} "
910 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
911 to the assembler equivalents. */
912 "%{v} %{w:-W} %{I*} "
914 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
916 static const char *invoke_as =
917 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
919 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
920 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
924 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
925 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
929 /* Some compilers have limits on line lengths, and the multilib_select
930 and/or multilib_matches strings can be very long, so we build them at
932 static struct obstack multilib_obstack;
933 static const char *multilib_select;
934 static const char *multilib_matches;
935 static const char *multilib_defaults;
936 static const char *multilib_exclusions;
938 /* Check whether a particular argument is a default argument. */
940 #ifndef MULTILIB_DEFAULTS
941 #define MULTILIB_DEFAULTS { "" }
944 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
946 #ifndef DRIVER_SELF_SPECS
947 #define DRIVER_SELF_SPECS ""
950 /* Adding -fopenmp should imply pthreads. This is particularly important
951 for targets that use different start files and suchlike. */
952 #ifndef GOMP_SELF_SPECS
953 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
956 static const char *const driver_self_specs[] = {
957 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
958 DRIVER_SELF_SPECS, GOMP_SELF_SPECS
961 #ifndef OPTION_DEFAULT_SPECS
962 #define OPTION_DEFAULT_SPECS { "", "" }
971 static const struct default_spec
972 option_default_specs[] = { OPTION_DEFAULT_SPECS };
976 struct user_specs *next;
977 const char *filename;
980 static struct user_specs *user_specs_head, *user_specs_tail;
982 #ifndef SWITCH_TAKES_ARG
983 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
986 #ifndef WORD_SWITCH_TAKES_ARG
987 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
990 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
991 /* This defines which switches stop a full compilation. */
992 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
993 ((CHAR) == 'c' || (CHAR) == 'S' || (CHAR) == 'E')
995 #ifndef SWITCH_CURTAILS_COMPILATION
996 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
997 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
1001 /* Record the mapping from file suffixes for compilation specs. */
1005 const char *suffix; /* Use this compiler for input files
1006 whose names end in this suffix. */
1008 const char *spec; /* To use this compiler, run this spec. */
1010 const char *cpp_spec; /* If non-NULL, substitute this spec
1011 for `%C', rather than the usual
1013 const int combinable; /* If nonzero, compiler can deal with
1014 multiple source files at once (IMA). */
1015 const int needs_preprocessing; /* If nonzero, source files need to
1016 be run through a preprocessor. */
1019 /* Pointer to a vector of `struct compiler' that gives the spec for
1020 compiling a file, based on its suffix.
1021 A file that does not end in any of these suffixes will be passed
1022 unchanged to the loader and nothing else will be done to it.
1024 An entry containing two 0s is used to terminate the vector.
1026 If multiple entries match a file, the last matching one is used. */
1028 static struct compiler *compilers;
1030 /* Number of entries in `compilers', not counting the null terminator. */
1032 static int n_compilers;
1034 /* The default list of file name suffixes and their compilation specs. */
1036 static const struct compiler default_compilers[] =
1038 /* Add lists of suffixes of known languages here. If those languages
1039 were not present when we built the driver, we will hit these copies
1040 and be given a more meaningful error than "file not used since
1041 linking is not done". */
1042 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1043 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1044 {".mii", "#Objective-C++", 0, 0, 0},
1045 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1046 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1047 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1048 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1049 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1050 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1051 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1052 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1053 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1054 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1055 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1056 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1057 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1058 {".r", "#Ratfor", 0, 0, 0},
1059 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1060 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1061 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1062 /* Next come the entries for C. */
1063 {".c", "@c", 0, 1, 1},
1065 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1066 external preprocessor if -save-temps is given. */
1067 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1069 %{traditional|ftraditional:\
1070 %eGNU C no longer supports -traditional without -E}\
1072 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1073 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1074 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1076 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1077 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1078 %{!fsyntax-only:%(invoke_as)}} \
1080 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1081 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i}}\
1082 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1083 cc1 %(cpp_unique_options) %(cc1_options)}}\
1084 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1086 "%{!E:%e-E or -x required when input is from standard input}\
1087 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1088 {".h", "@c-header", 0, 0, 0},
1090 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1091 external preprocessor if -save-temps is given. */
1092 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1094 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1095 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1096 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1098 -o %g.s %{!o*:--output-pch=%i.gch}\
1099 %W{o*:--output-pch=%*}%V}\
1100 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1101 cc1 %(cpp_unique_options) %(cc1_options)\
1102 -o %g.s %{!o*:--output-pch=%i.gch}\
1103 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1104 {".i", "@cpp-output", 0, 1, 0},
1106 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1107 {".s", "@assembler", 0, 1, 0},
1109 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1110 {".sx", "@assembler-with-cpp", 0, 1, 0},
1111 {".S", "@assembler-with-cpp", 0, 1, 0},
1112 {"@assembler-with-cpp",
1113 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1114 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1115 %{E|M|MM:%(cpp_debug_options)}\
1116 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1117 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1119 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1120 %{E|M|MM:%(cpp_debug_options)}\
1121 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1122 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1127 /* Mark end of table. */
1131 /* Number of elements in default_compilers, not counting the terminator. */
1133 static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
1135 /* A vector of options to give to the linker.
1136 These options are accumulated by %x,
1137 and substituted into the linker command with %X. */
1138 static int n_linker_options;
1139 static char **linker_options;
1141 /* A vector of options to give to the assembler.
1142 These options are accumulated by -Wa,
1143 and substituted into the assembler command with %Y. */
1144 static int n_assembler_options;
1145 static char **assembler_options;
1147 /* A vector of options to give to the preprocessor.
1148 These options are accumulated by -Wp,
1149 and substituted into the preprocessor command with %Z. */
1150 static int n_preprocessor_options;
1151 static char **preprocessor_options;
1153 /* Define how to map long options into short ones. */
1155 /* This structure describes one mapping. */
1158 /* The long option's name. */
1159 const char *const name;
1160 /* The equivalent short option. */
1161 const char *const equivalent;
1162 /* Argument info. A string of flag chars; NULL equals no options.
1163 a => argument required.
1164 o => argument optional.
1165 j => join argument to equivalent, making one word.
1166 * => require other text after NAME as an argument. */
1167 const char *const arg_info;
1170 /* This is the table of mappings. Mappings are tried sequentially
1171 for each option encountered; the first one that matches, wins. */
1173 static const struct option_map option_map[] =
1175 {"--all-warnings", "-Wall", 0},
1176 {"--ansi", "-ansi", 0},
1177 {"--assemble", "-S", 0},
1178 {"--assert", "-A", "a"},
1179 {"--classpath", "-fclasspath=", "aj"},
1180 {"--bootclasspath", "-fbootclasspath=", "aj"},
1181 {"--CLASSPATH", "-fclasspath=", "aj"},
1182 {"--combine", "-combine", 0},
1183 {"--comments", "-C", 0},
1184 {"--comments-in-macros", "-CC", 0},
1185 {"--compile", "-c", 0},
1186 {"--debug", "-g", "oj"},
1187 {"--define-macro", "-D", "aj"},
1188 {"--dependencies", "-M", 0},
1189 {"--dump", "-d", "a"},
1190 {"--dumpbase", "-dumpbase", "a"},
1191 {"--encoding", "-fencoding=", "aj"},
1192 {"--entry", "-e", 0},
1193 {"--extra-warnings", "-W", 0},
1194 {"--extdirs", "-fextdirs=", "aj"},
1195 {"--for-assembler", "-Wa", "a"},
1196 {"--for-linker", "-Xlinker", "a"},
1197 {"--force-link", "-u", "a"},
1198 {"--coverage", "-coverage", 0},
1199 {"--imacros", "-imacros", "a"},
1200 {"--include", "-include", "a"},
1201 {"--include-barrier", "-I-", 0},
1202 {"--include-directory", "-I", "aj"},
1203 {"--include-directory-after", "-idirafter", "a"},
1204 {"--include-prefix", "-iprefix", "a"},
1205 {"--include-with-prefix", "-iwithprefix", "a"},
1206 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1207 {"--include-with-prefix-after", "-iwithprefix", "a"},
1208 {"--language", "-x", "a"},
1209 {"--library-directory", "-L", "a"},
1210 {"--machine", "-m", "aj"},
1211 {"--machine-", "-m", "*j"},
1212 {"--no-canonical-prefixes", "-no-canonical-prefixes", 0},
1213 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1214 {"--no-line-commands", "-P", 0},
1215 {"--no-precompiled-includes", "-noprecomp", 0},
1216 {"--no-standard-includes", "-nostdinc", 0},
1217 {"--no-standard-libraries", "-nostdlib", 0},
1218 {"--no-warnings", "-w", 0},
1219 {"--optimize", "-O", "oj"},
1220 {"--output", "-o", "a"},
1221 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1222 {"--param", "--param", "a"},
1223 {"--pass-exit-codes", "-pass-exit-codes", 0},
1224 {"--pedantic", "-pedantic", 0},
1225 {"--pedantic-errors", "-pedantic-errors", 0},
1226 {"--pie", "-pie", 0},
1227 {"--pipe", "-pipe", 0},
1228 {"--prefix", "-B", "a"},
1229 {"--preprocess", "-E", 0},
1230 {"--print-search-dirs", "-print-search-dirs", 0},
1231 {"--print-file-name", "-print-file-name=", "aj"},
1232 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1233 {"--print-missing-file-dependencies", "-MG", 0},
1234 {"--print-multi-lib", "-print-multi-lib", 0},
1235 {"--print-multi-directory", "-print-multi-directory", 0},
1236 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1237 {"--print-prog-name", "-print-prog-name=", "aj"},
1238 {"--print-sysroot", "-print-sysroot", 0},
1239 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1240 {"--profile", "-p", 0},
1241 {"--profile-blocks", "-a", 0},
1242 {"--quiet", "-q", 0},
1243 {"--resource", "-fcompile-resource=", "aj"},
1244 {"--save-temps", "-save-temps", 0},
1245 {"--shared", "-shared", 0},
1246 {"--silent", "-q", 0},
1247 {"--specs", "-specs=", "aj"},
1248 {"--static", "-static", 0},
1249 {"--std", "-std=", "aj"},
1250 {"--symbolic", "-symbolic", 0},
1251 {"--sysroot", "--sysroot=", "aj"},
1252 {"--time", "-time", 0},
1253 {"--trace-includes", "-H", 0},
1254 {"--traditional", "-traditional", 0},
1255 {"--traditional-cpp", "-traditional-cpp", 0},
1256 {"--trigraphs", "-trigraphs", 0},
1257 {"--undefine-macro", "-U", "aj"},
1258 {"--user-dependencies", "-MM", 0},
1259 {"--verbose", "-v", 0},
1260 {"--warn-", "-W", "*j"},
1261 {"--write-dependencies", "-MD", 0},
1262 {"--write-user-dependencies", "-MMD", 0},
1267 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1268 static const struct {
1269 const char *const option_found;
1270 const char *const replacements;
1271 } target_option_translations[] =
1273 TARGET_OPTION_TRANSLATE_TABLE,
1278 /* Translate the options described by *ARGCP and *ARGVP.
1279 Make a new vector and store it back in *ARGVP,
1280 and store its length in *ARGCP. */
1283 translate_options (int *argcp, const char *const **argvp)
1287 const char *const *argv = *argvp;
1288 int newvsize = (argc + 2) * 2 * sizeof (const char *);
1289 const char **newv = XNEWVAR (const char *, newvsize);
1293 newv[newindex++] = argv[i++];
1297 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1301 target_option_translations[tott_idx].option_found;
1304 if (strcmp (target_option_translations[tott_idx].option_found,
1311 for (sp = target_option_translations[tott_idx].replacements;
1318 newvsize += spaces * sizeof (const char *);
1319 newv = XRESIZEVAR (const char *, newv, newvsize);
1321 sp = target_option_translations[tott_idx].replacements;
1330 newv[newindex++] = np;
1331 while (*np != ' ' && *np)
1342 if (target_option_translations[tott_idx].option_found)
1346 /* Translate -- options. */
1347 if (argv[i][0] == '-' && argv[i][1] == '-')
1350 /* Find a mapping that applies to this option. */
1351 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1353 size_t optlen = strlen (option_map[j].name);
1354 size_t arglen = strlen (argv[i]);
1355 size_t complen = arglen > optlen ? optlen : arglen;
1356 const char *arginfo = option_map[j].arg_info;
1361 if (!strncmp (argv[i], option_map[j].name, complen))
1363 const char *arg = 0;
1365 if (arglen < optlen)
1368 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1369 if (strlen (option_map[k].name) >= arglen
1370 && !strncmp (argv[i], option_map[k].name, arglen))
1372 error ("ambiguous abbreviation %s", argv[i]);
1376 if (k != ARRAY_SIZE (option_map))
1380 if (arglen > optlen)
1382 /* If the option has an argument, accept that. */
1383 if (argv[i][optlen] == '=')
1384 arg = argv[i] + optlen + 1;
1386 /* If this mapping requires extra text at end of name,
1387 accept that as "argument". */
1388 else if (strchr (arginfo, '*') != 0)
1389 arg = argv[i] + optlen;
1391 /* Otherwise, extra text at end means mismatch.
1392 Try other mappings. */
1397 else if (strchr (arginfo, '*') != 0)
1399 error ("incomplete '%s' option", option_map[j].name);
1403 /* Handle arguments. */
1404 if (strchr (arginfo, 'a') != 0)
1410 error ("missing argument to '%s' option",
1411 option_map[j].name);
1418 else if (strchr (arginfo, '*') != 0)
1420 else if (strchr (arginfo, 'o') == 0)
1423 error ("extraneous argument to '%s' option",
1424 option_map[j].name);
1428 /* Store the translation as one argv elt or as two. */
1429 if (arg != 0 && strchr (arginfo, 'j') != 0)
1430 newv[newindex++] = concat (option_map[j].equivalent, arg,
1434 newv[newindex++] = option_map[j].equivalent;
1435 newv[newindex++] = arg;
1438 newv[newindex++] = option_map[j].equivalent;
1446 /* Handle old-fashioned options--just copy them through,
1447 with their arguments. */
1448 else if (argv[i][0] == '-')
1450 const char *p = argv[i] + 1;
1454 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1455 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1456 else if (WORD_SWITCH_TAKES_ARG (p))
1457 nskip += WORD_SWITCH_TAKES_ARG (p);
1458 else if ((c == 'B' || c == 'b' || c == 'x')
1461 else if (! strcmp (p, "Xlinker"))
1463 else if (! strcmp (p, "Xpreprocessor"))
1465 else if (! strcmp (p, "Xassembler"))
1468 /* Watch out for an option at the end of the command line that
1469 is missing arguments, and avoid skipping past the end of the
1471 if (nskip + i > argc)
1476 newv[newindex++] = argv[i++];
1481 /* Ordinary operands, or +e options. */
1482 newv[newindex++] = argv[i++];
1492 skip_whitespace (char *p)
1496 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1497 be considered whitespace. */
1498 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1500 else if (*p == '\n' || *p == ' ' || *p == '\t')
1514 /* Structures to keep track of prefixes to try when looking for files. */
1518 const char *prefix; /* String to prepend to the path. */
1519 struct prefix_list *next; /* Next in linked list. */
1520 int require_machine_suffix; /* Don't use without machine_suffix. */
1521 /* 2 means try both machine_suffix and just_machine_suffix. */
1522 int priority; /* Sort key - priority within list. */
1523 int os_multilib; /* 1 if OS multilib scheme should be used,
1524 0 for GCC multilib scheme. */
1529 struct prefix_list *plist; /* List of prefixes to try */
1530 int max_len; /* Max length of a prefix in PLIST */
1531 const char *name; /* Name of this list (used in config stuff) */
1534 /* List of prefixes to try when looking for executables. */
1536 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1538 /* List of prefixes to try when looking for startup (crt0) files. */
1540 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1542 /* List of prefixes to try when looking for include files. */
1544 static struct path_prefix include_prefixes = { 0, 0, "include" };
1546 /* Suffix to attach to directories searched for commands.
1547 This looks like `MACHINE/VERSION/'. */
1549 static const char *machine_suffix = 0;
1551 /* Suffix to attach to directories searched for commands.
1552 This is just `MACHINE/'. */
1554 static const char *just_machine_suffix = 0;
1556 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1558 static const char *gcc_exec_prefix;
1560 /* Adjusted value of standard_libexec_prefix. */
1562 static const char *gcc_libexec_prefix;
1564 /* Default prefixes to attach to command names. */
1566 #ifndef STANDARD_STARTFILE_PREFIX_1
1567 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1569 #ifndef STANDARD_STARTFILE_PREFIX_2
1570 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1573 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1574 #undef MD_EXEC_PREFIX
1575 #undef MD_STARTFILE_PREFIX
1576 #undef MD_STARTFILE_PREFIX_1
1579 /* If no prefixes defined, use the null string, which will disable them. */
1580 #ifndef MD_EXEC_PREFIX
1581 #define MD_EXEC_PREFIX ""
1583 #ifndef MD_STARTFILE_PREFIX
1584 #define MD_STARTFILE_PREFIX ""
1586 #ifndef MD_STARTFILE_PREFIX_1
1587 #define MD_STARTFILE_PREFIX_1 ""
1590 /* These directories are locations set at configure-time based on the
1591 --prefix option provided to configure. Their initializers are
1592 defined in Makefile.in. These paths are not *directly* used when
1593 gcc_exec_prefix is set because, in that case, we know where the
1594 compiler has been installed, and use paths relative to that
1595 location instead. */
1596 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1597 static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
1598 static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1599 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1601 /* For native compilers, these are well-known paths containing
1602 components that may be provided by the system. For cross
1603 compilers, these paths are not used. */
1604 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1605 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1606 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1607 static const char *const standard_startfile_prefix_1
1608 = STANDARD_STARTFILE_PREFIX_1;
1609 static const char *const standard_startfile_prefix_2
1610 = STANDARD_STARTFILE_PREFIX_2;
1612 /* A relative path to be used in finding the location of tools
1613 relative to the driver. */
1614 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1616 /* Subdirectory to use for locating libraries. Set by
1617 set_multilib_dir based on the compilation options. */
1619 static const char *multilib_dir;
1621 /* Subdirectory to use for locating libraries in OS conventions. Set by
1622 set_multilib_dir based on the compilation options. */
1624 static const char *multilib_os_dir;
1626 /* Structure to keep track of the specs that have been defined so far.
1627 These are accessed using %(specname) or %[specname] in a compiler
1632 /* The following 2 fields must be first */
1633 /* to allow EXTRA_SPECS to be initialized */
1634 const char *name; /* name of the spec. */
1635 const char *ptr; /* available ptr if no static pointer */
1637 /* The following fields are not initialized */
1638 /* by EXTRA_SPECS */
1639 const char **ptr_spec; /* pointer to the spec itself. */
1640 struct spec_list *next; /* Next spec in linked list. */
1641 int name_len; /* length of the name */
1642 int alloc_p; /* whether string was allocated */
1645 #define INIT_STATIC_SPEC(NAME,PTR) \
1646 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1648 /* List of statically defined specs. */
1649 static struct spec_list static_specs[] =
1651 INIT_STATIC_SPEC ("asm", &asm_spec),
1652 INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1653 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1654 INIT_STATIC_SPEC ("asm_options", &asm_options),
1655 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1656 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1657 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1658 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options),
1659 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options),
1660 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1661 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1662 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1663 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1664 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec),
1665 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec),
1666 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1667 INIT_STATIC_SPEC ("link", &link_spec),
1668 INIT_STATIC_SPEC ("lib", &lib_spec),
1669 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec),
1670 INIT_STATIC_SPEC ("mflib", &mflib_spec),
1671 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec),
1672 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1673 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1674 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1675 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1676 INIT_STATIC_SPEC ("version", &compiler_version),
1677 INIT_STATIC_SPEC ("multilib", &multilib_select),
1678 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1679 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1680 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1681 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1682 INIT_STATIC_SPEC ("multilib_options", &multilib_options),
1683 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1684 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec),
1685 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec),
1686 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec),
1687 INIT_STATIC_SPEC ("lto_libgcc", <o_libgcc_spec),
1688 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1689 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1690 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1691 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1692 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
1693 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec),
1694 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
1695 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
1698 #ifdef EXTRA_SPECS /* additional specs needed */
1699 /* Structure to keep track of just the first two args of a spec_list.
1700 That is all that the EXTRA_SPECS macro gives us. */
1703 const char *const name;
1704 const char *const ptr;
1707 static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1708 static struct spec_list *extra_specs = (struct spec_list *) 0;
1711 /* List of dynamically allocates specs that have been defined so far. */
1713 static struct spec_list *specs = (struct spec_list *) 0;
1715 /* List of static spec functions. */
1717 static const struct spec_function static_spec_functions[] =
1719 { "getenv", getenv_spec_function },
1720 { "if-exists", if_exists_spec_function },
1721 { "if-exists-else", if_exists_else_spec_function },
1722 { "replace-outfile", replace_outfile_spec_function },
1723 { "version-compare", version_compare_spec_function },
1724 { "include", include_spec_function },
1725 { "print-asm-header", print_asm_header_spec_function },
1726 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function },
1727 { "compare-debug-self-opt", compare_debug_self_opt_spec_function },
1728 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function },
1729 #ifdef EXTRA_SPEC_FUNCTIONS
1730 EXTRA_SPEC_FUNCTIONS
1735 static int processing_spec_function;
1737 /* Add appropriate libgcc specs to OBSTACK, taking into account
1738 various permutations of -shared-libgcc, -shared, and such. */
1740 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1742 #ifndef USE_LD_AS_NEEDED
1743 #define USE_LD_AS_NEEDED 0
1747 init_gcc_specs (struct obstack *obstack, const char *shared_name,
1748 const char *static_name, const char *eh_name)
1752 buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}"
1753 "%{!static:%{!static-libgcc:"
1754 #if USE_LD_AS_NEEDED
1755 "%{!shared-libgcc:",
1756 static_name, " --as-needed ", shared_name, " --no-as-needed"
1759 shared_name, "%{!shared: ", static_name, "}"
1763 "%{!shared-libgcc:", static_name, " ", eh_name, "}"
1764 "%{shared-libgcc:", shared_name, " ", static_name, "}"
1768 "%{shared-libgcc:", shared_name, "}"
1769 "%{!shared-libgcc:", static_name, "}"
1772 "%{shared:", shared_name, "}"
1777 obstack_grow (obstack, buf, strlen (buf));
1780 #endif /* ENABLE_SHARED_LIBGCC */
1782 /* Initialize the specs lookup routines. */
1787 struct spec_list *next = (struct spec_list *) 0;
1788 struct spec_list *sl = (struct spec_list *) 0;
1792 return; /* Already initialized. */
1795 notice ("Using built-in specs.\n");
1798 extra_specs = XCNEWVEC (struct spec_list, ARRAY_SIZE (extra_specs_1));
1800 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1802 sl = &extra_specs[i];
1803 sl->name = extra_specs_1[i].name;
1804 sl->ptr = extra_specs_1[i].ptr;
1806 sl->name_len = strlen (sl->name);
1807 sl->ptr_spec = &sl->ptr;
1812 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1814 sl = &static_specs[i];
1819 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1820 /* ??? If neither -shared-libgcc nor --static-libgcc was
1821 seen, then we should be making an educated guess. Some proposed
1822 heuristics for ELF include:
1824 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1825 program will be doing dynamic loading, which will likely
1826 need the shared libgcc.
1828 (2) If "-ldl", then it's also a fair bet that we're doing
1831 (3) For each ET_DYN we're linking against (either through -lfoo
1832 or /some/path/foo.so), check to see whether it or one of
1833 its dependencies depends on a shared libgcc.
1837 If the runtime is fixed to look for program headers instead
1838 of calling __register_frame_info at all, for each object,
1839 use the shared libgcc if any EH symbol referenced.
1841 If crtstuff is fixed to not invoke __register_frame_info
1842 automatically, for each object, use the shared libgcc if
1843 any non-empty unwind section found.
1845 Doing any of this probably requires invoking an external program to
1846 do the actual object file scanning. */
1848 const char *p = libgcc_spec;
1851 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1852 when given the proper command line arguments. */
1855 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1857 init_gcc_specs (&obstack,
1859 #ifdef USE_LIBUNWIND_EXCEPTIONS
1865 #ifdef USE_LIBUNWIND_EXCEPTIONS
1866 # ifdef HAVE_LD_STATIC_DYNAMIC
1867 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1877 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1879 /* Ug. We don't know shared library extensions. Hope that
1880 systems that use this form don't do shared libraries. */
1881 init_gcc_specs (&obstack,
1885 #ifdef USE_LIBUNWIND_EXCEPTIONS
1894 obstack_1grow (&obstack, *p);
1895 in_sep = (*p == ' ');
1900 obstack_1grow (&obstack, '\0');
1901 libgcc_spec = XOBFINISH (&obstack, const char *);
1904 #ifdef USE_AS_TRADITIONAL_FORMAT
1905 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1907 static const char tf[] = "--traditional-format ";
1908 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1909 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1910 asm_spec = XOBFINISH (&obstack, const char *);
1914 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1915 # ifdef LINK_BUILDID_SPEC
1916 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1917 obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof(LINK_BUILDID_SPEC) - 1);
1919 # ifdef LINK_EH_SPEC
1920 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1921 obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
1923 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
1924 link_spec = XOBFINISH (&obstack, const char *);
1930 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1931 removed; If the spec starts with a + then SPEC is added to the end of the
1935 set_spec (const char *name, const char *spec)
1937 struct spec_list *sl;
1938 const char *old_spec;
1939 int name_len = strlen (name);
1942 /* If this is the first call, initialize the statically allocated specs. */
1945 struct spec_list *next = (struct spec_list *) 0;
1946 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1948 sl = &static_specs[i];
1955 /* See if the spec already exists. */
1956 for (sl = specs; sl; sl = sl->next)
1957 if (name_len == sl->name_len && !strcmp (sl->name, name))
1962 /* Not found - make it. */
1963 sl = XNEW (struct spec_list);
1964 sl->name = xstrdup (name);
1965 sl->name_len = name_len;
1966 sl->ptr_spec = &sl->ptr;
1968 *(sl->ptr_spec) = "";
1973 old_spec = *(sl->ptr_spec);
1974 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1975 ? concat (old_spec, spec + 1, NULL)
1980 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1983 /* Free the old spec. */
1984 if (old_spec && sl->alloc_p)
1985 free (CONST_CAST(char *, old_spec));
1990 /* Accumulate a command (program name and args), and run it. */
1992 /* Vector of pointers to arguments in the current line of specifications. */
1994 static const char **argbuf;
1996 /* Number of elements allocated in argbuf. */
1998 static int argbuf_length;
2000 /* Number of elements in argbuf currently in use (containing args). */
2002 static int argbuf_index;
2004 /* Position in the argbuf array containing the name of the output file
2005 (the value associated with the "-o" flag). */
2007 static int have_o_argbuf_index = 0;
2009 /* Were the options -c, -S or -E passed. */
2010 static int have_c = 0;
2012 /* Was the option -o passed. */
2013 static int have_o = 0;
2015 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
2016 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2019 static struct temp_name {
2020 const char *suffix; /* suffix associated with the code. */
2021 int length; /* strlen (suffix). */
2022 int unique; /* Indicates whether %g or %u/%U was used. */
2023 const char *filename; /* associated filename. */
2024 int filename_length; /* strlen (filename). */
2025 struct temp_name *next;
2028 /* Number of commands executed so far. */
2030 static int execution_count;
2032 /* Number of commands that exited with a signal. */
2034 static int signal_count;
2036 /* Name with which this program was invoked. */
2038 static const char *programname;
2040 /* Allocate the argument vector. */
2046 argbuf = XNEWVEC (const char *, argbuf_length);
2049 /* Clear out the vector of arguments (after a command is executed). */
2057 /* Add one argument to the vector at the end.
2058 This is done when a space is seen or at the end of the line.
2059 If DELETE_ALWAYS is nonzero, the arg is a filename
2060 and the file should be deleted eventually.
2061 If DELETE_FAILURE is nonzero, the arg is a filename
2062 and the file should be deleted if this compilation fails. */
2065 store_arg (const char *arg, int delete_always, int delete_failure)
2067 if (argbuf_index + 1 == argbuf_length)
2068 argbuf = XRESIZEVEC (const char *, argbuf, (argbuf_length *= 2));
2070 argbuf[argbuf_index++] = arg;
2071 argbuf[argbuf_index] = 0;
2073 if (strcmp (arg, "-o") == 0)
2074 have_o_argbuf_index = argbuf_index;
2075 if (delete_always || delete_failure)
2076 record_temp_file (arg, delete_always, delete_failure);
2079 /* Load specs from a file name named FILENAME, replacing occurrences of
2080 various different types of line-endings, \r\n, \n\r and just \r, with
2084 load_specs (const char *filename)
2088 struct stat statbuf;
2095 notice ("Reading specs from %s\n", filename);
2097 /* Open and stat the file. */
2098 desc = open (filename, O_RDONLY, 0);
2100 pfatal_with_name (filename);
2101 if (stat (filename, &statbuf) < 0)
2102 pfatal_with_name (filename);
2104 /* Read contents of file into BUFFER. */
2105 buffer = XNEWVEC (char, statbuf.st_size + 1);
2106 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
2108 pfatal_with_name (filename);
2109 buffer[readlen] = 0;
2112 specs = XNEWVEC (char, readlen + 1);
2114 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
2120 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
2122 else if (*(buffer_p + 1) == '\n') /* \r\n */
2136 /* Read compilation specs from a file named FILENAME,
2137 replacing the default ones.
2139 A suffix which starts with `*' is a definition for
2140 one of the machine-specific sub-specs. The "suffix" should be
2141 *asm, *cc1, *cpp, *link, *startfile, etc.
2142 The corresponding spec is stored in asm_spec, etc.,
2143 rather than in the `compilers' vector.
2145 Anything invalid in the file is a fatal error. */
2148 read_specs (const char *filename, int main_p)
2153 buffer = load_specs (filename);
2155 /* Scan BUFFER for specs, putting them in the vector. */
2161 char *in, *out, *p1, *p2, *p3;
2163 /* Advance P in BUFFER to the next nonblank nocomment line. */
2164 p = skip_whitespace (p);
2168 /* Is this a special command that starts with '%'? */
2169 /* Don't allow this for the main specs file, since it would
2170 encourage people to overwrite it. */
2171 if (*p == '%' && !main_p)
2174 while (*p && *p != '\n')
2180 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
2181 && (p1[sizeof "%include" - 1] == ' '
2182 || p1[sizeof "%include" - 1] == '\t'))
2186 p1 += sizeof ("%include");
2187 while (*p1 == ' ' || *p1 == '\t')
2190 if (*p1++ != '<' || p[-2] != '>')
2191 fatal ("specs %%include syntax malformed after %ld characters",
2192 (long) (p1 - buffer + 1));
2195 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2196 read_specs (new_filename ? new_filename : p1, FALSE);
2199 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
2200 && (p1[sizeof "%include_noerr" - 1] == ' '
2201 || p1[sizeof "%include_noerr" - 1] == '\t'))
2205 p1 += sizeof "%include_noerr";
2206 while (*p1 == ' ' || *p1 == '\t')
2209 if (*p1++ != '<' || p[-2] != '>')
2210 fatal ("specs %%include syntax malformed after %ld characters",
2211 (long) (p1 - buffer + 1));
2214 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2216 read_specs (new_filename, FALSE);
2217 else if (verbose_flag)
2218 notice ("could not find specs file %s\n", p1);
2221 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
2222 && (p1[sizeof "%rename" - 1] == ' '
2223 || p1[sizeof "%rename" - 1] == '\t'))
2226 struct spec_list *sl;
2227 struct spec_list *newsl;
2229 /* Get original name. */
2230 p1 += sizeof "%rename";
2231 while (*p1 == ' ' || *p1 == '\t')
2234 if (! ISALPHA ((unsigned char) *p1))
2235 fatal ("specs %%rename syntax malformed after %ld characters",
2236 (long) (p1 - buffer));
2239 while (*p2 && !ISSPACE ((unsigned char) *p2))
2242 if (*p2 != ' ' && *p2 != '\t')
2243 fatal ("specs %%rename syntax malformed after %ld characters",
2244 (long) (p2 - buffer));
2248 while (*p2 == ' ' || *p2 == '\t')
2251 if (! ISALPHA ((unsigned char) *p2))
2252 fatal ("specs %%rename syntax malformed after %ld characters",
2253 (long) (p2 - buffer));
2255 /* Get new spec name. */
2257 while (*p3 && !ISSPACE ((unsigned char) *p3))
2261 fatal ("specs %%rename syntax malformed after %ld characters",
2262 (long) (p3 - buffer));
2265 for (sl = specs; sl; sl = sl->next)
2266 if (name_len == sl->name_len && !strcmp (sl->name, p1))
2270 fatal ("specs %s spec was not found to be renamed", p1);
2272 if (strcmp (p1, p2) == 0)
2275 for (newsl = specs; newsl; newsl = newsl->next)
2276 if (strcmp (newsl->name, p2) == 0)
2277 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2282 notice ("rename spec %s to %s\n", p1, p2);
2284 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
2288 set_spec (p2, *(sl->ptr_spec));
2290 free (CONST_CAST (char *, *(sl->ptr_spec)));
2292 *(sl->ptr_spec) = "";
2297 fatal ("specs unknown %% command after %ld characters",
2298 (long) (p1 - buffer));
2301 /* Find the colon that should end the suffix. */
2303 while (*p1 && *p1 != ':' && *p1 != '\n')
2306 /* The colon shouldn't be missing. */
2308 fatal ("specs file malformed after %ld characters",
2309 (long) (p1 - buffer));
2311 /* Skip back over trailing whitespace. */
2313 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
2316 /* Copy the suffix to a string. */
2317 suffix = save_string (p, p2 - p);
2318 /* Find the next line. */
2319 p = skip_whitespace (p1 + 1);
2321 fatal ("specs file malformed after %ld characters",
2322 (long) (p - buffer));
2325 /* Find next blank line or end of string. */
2326 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
2329 /* Specs end at the blank line and do not include the newline. */
2330 spec = save_string (p, p1 - p);
2333 /* Delete backslash-newline sequences from the spec. */
2338 if (in[0] == '\\' && in[1] == '\n')
2340 else if (in[0] == '#')
2341 while (*in && *in != '\n')
2349 if (suffix[0] == '*')
2351 if (! strcmp (suffix, "*link_command"))
2352 link_command_spec = spec;
2354 set_spec (suffix + 1, spec);
2358 /* Add this pair to the vector. */
2360 = XRESIZEVEC (struct compiler, compilers, n_compilers + 2);
2362 compilers[n_compilers].suffix = suffix;
2363 compilers[n_compilers].spec = spec;
2365 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
2369 link_command_spec = spec;
2372 if (link_command_spec == 0)
2373 fatal ("spec file has no spec for linking");
2376 /* Record the names of temporary files we tell compilers to write,
2377 and delete them at the end of the run. */
2379 /* This is the common prefix we use to make temp file names.
2380 It is chosen once for each run of this program.
2381 It is substituted into a spec by %g or %j.
2382 Thus, all temp file names contain this prefix.
2383 In practice, all temp file names start with this prefix.
2385 This prefix comes from the envvar TMPDIR if it is defined;
2386 otherwise, from the P_tmpdir macro if that is defined;
2387 otherwise, in /usr/tmp or /tmp;
2388 or finally the current directory if all else fails. */
2390 static const char *temp_filename;
2392 /* Length of the prefix. */
2394 static int temp_filename_length;
2396 /* Define the list of temporary files to delete. */
2401 struct temp_file *next;
2404 /* Queue of files to delete on success or failure of compilation. */
2405 static struct temp_file *always_delete_queue;
2406 /* Queue of files to delete on failure of compilation. */
2407 static struct temp_file *failure_delete_queue;
2409 /* Record FILENAME as a file to be deleted automatically.
2410 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2411 otherwise delete it in any case.
2412 FAIL_DELETE nonzero means delete it if a compilation step fails;
2413 otherwise delete it in any case. */
2416 record_temp_file (const char *filename, int always_delete, int fail_delete)
2418 char *const name = xstrdup (filename);
2422 struct temp_file *temp;
2423 for (temp = always_delete_queue; temp; temp = temp->next)
2424 if (! strcmp (name, temp->name))
2427 temp = XNEW (struct temp_file);
2428 temp->next = always_delete_queue;
2430 always_delete_queue = temp;
2437 struct temp_file *temp;
2438 for (temp = failure_delete_queue; temp; temp = temp->next)
2439 if (! strcmp (name, temp->name))
2442 temp = XNEW (struct temp_file);
2443 temp->next = failure_delete_queue;
2445 failure_delete_queue = temp;
2451 /* Delete all the temporary files whose names we previously recorded. */
2453 #ifndef DELETE_IF_ORDINARY
2454 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2457 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2458 if (unlink (NAME) < 0) \
2460 perror_with_name (NAME); \
2465 delete_if_ordinary (const char *name)
2471 printf ("Delete %s? (y or n) ", name);
2475 while ((c = getchar ()) != '\n' && c != EOF)
2478 if (i == 'y' || i == 'Y')
2480 DELETE_IF_ORDINARY (name, st, verbose_flag);
2484 delete_temp_files (void)
2486 struct temp_file *temp;
2488 for (temp = always_delete_queue; temp; temp = temp->next)
2489 delete_if_ordinary (temp->name);
2490 always_delete_queue = 0;
2493 /* Delete all the files to be deleted on error. */
2496 delete_failure_queue (void)
2498 struct temp_file *temp;
2500 for (temp = failure_delete_queue; temp; temp = temp->next)
2501 delete_if_ordinary (temp->name);
2505 clear_failure_queue (void)
2507 failure_delete_queue = 0;
2510 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2512 If DO_MULTI is true iterate over the paths twice, first with multilib
2513 suffix then without, otherwise iterate over the paths once without
2514 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2515 to avoid visiting the same path twice, but we could do better. For
2516 instance, /usr/lib/../lib is considered different from /usr/lib.
2517 At least EXTRA_SPACE chars past the end of the path passed to
2518 CALLBACK are available for use by the callback.
2519 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2521 Returns the value returned by CALLBACK. */
2524 for_each_path (const struct path_prefix *paths,
2527 void *(*callback) (char *, void *),
2528 void *callback_info)
2530 struct prefix_list *pl;
2531 const char *multi_dir = NULL;
2532 const char *multi_os_dir = NULL;
2533 const char *multi_suffix;
2534 const char *just_multi_suffix;
2537 bool skip_multi_dir = false;
2538 bool skip_multi_os_dir = false;
2540 multi_suffix = machine_suffix;
2541 just_multi_suffix = just_machine_suffix;
2542 if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0)
2544 multi_dir = concat (multilib_dir, dir_separator_str, NULL);
2545 multi_suffix = concat (multi_suffix, multi_dir, NULL);
2546 just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL);
2548 if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0)
2549 multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL);
2553 size_t multi_dir_len = 0;
2554 size_t multi_os_dir_len = 0;
2556 size_t just_suffix_len;
2560 multi_dir_len = strlen (multi_dir);
2562 multi_os_dir_len = strlen (multi_os_dir);
2563 suffix_len = strlen (multi_suffix);
2564 just_suffix_len = strlen (just_multi_suffix);
2568 len = paths->max_len + extra_space + 1;
2569 if (suffix_len > multi_os_dir_len)
2572 len += multi_os_dir_len;
2573 path = XNEWVEC (char, len);
2576 for (pl = paths->plist; pl != 0; pl = pl->next)
2578 len = strlen (pl->prefix);
2579 memcpy (path, pl->prefix, len);
2581 /* Look first in MACHINE/VERSION subdirectory. */
2582 if (!skip_multi_dir)
2584 memcpy (path + len, multi_suffix, suffix_len + 1);
2585 ret = callback (path, callback_info);
2590 /* Some paths are tried with just the machine (ie. target)
2591 subdir. This is used for finding as, ld, etc. */
2593 && pl->require_machine_suffix == 2)
2595 memcpy (path + len, just_multi_suffix, just_suffix_len + 1);
2596 ret = callback (path, callback_info);
2601 /* Now try the base path. */
2602 if (!pl->require_machine_suffix
2603 && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir))
2605 const char *this_multi;
2606 size_t this_multi_len;
2608 if (pl->os_multilib)
2610 this_multi = multi_os_dir;
2611 this_multi_len = multi_os_dir_len;
2615 this_multi = multi_dir;
2616 this_multi_len = multi_dir_len;
2620 memcpy (path + len, this_multi, this_multi_len + 1);
2624 ret = callback (path, callback_info);
2632 if (multi_dir == NULL && multi_os_dir == NULL)
2635 /* Run through the paths again, this time without multilibs.
2636 Don't repeat any we have already seen. */
2639 free (CONST_CAST (char *, multi_dir));
2641 free (CONST_CAST (char *, multi_suffix));
2642 multi_suffix = machine_suffix;
2643 free (CONST_CAST (char *, just_multi_suffix));
2644 just_multi_suffix = just_machine_suffix;
2647 skip_multi_dir = true;
2650 free (CONST_CAST (char *, multi_os_dir));
2651 multi_os_dir = NULL;
2654 skip_multi_os_dir = true;
2659 free (CONST_CAST (char *, multi_dir));
2660 free (CONST_CAST (char *, multi_suffix));
2661 free (CONST_CAST (char *, just_multi_suffix));
2664 free (CONST_CAST (char *, multi_os_dir));
2670 /* Callback for build_search_list. Adds path to obstack being built. */
2672 struct add_to_obstack_info {
2679 add_to_obstack (char *path, void *data)
2681 struct add_to_obstack_info *info = (struct add_to_obstack_info *) data;
2683 if (info->check_dir && !is_directory (path, false))
2686 if (!info->first_time)
2687 obstack_1grow (info->ob, PATH_SEPARATOR);
2689 obstack_grow (info->ob, path, strlen (path));
2691 info->first_time = false;
2695 /* Add or change the value of an environment variable, outputting the
2696 change to standard error if in verbose mode. */
2698 xputenv (const char *string)
2701 notice ("%s\n", string);
2702 putenv (CONST_CAST (char *, string));
2705 /* Build a list of search directories from PATHS.
2706 PREFIX is a string to prepend to the list.
2707 If CHECK_DIR_P is true we ensure the directory exists.
2708 If DO_MULTI is true, multilib paths are output first, then
2710 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2711 It is also used by the --print-search-dirs flag. */
2714 build_search_list (const struct path_prefix *paths, const char *prefix,
2715 bool check_dir, bool do_multi)
2717 struct add_to_obstack_info info;
2719 info.ob = &collect_obstack;
2720 info.check_dir = check_dir;
2721 info.first_time = true;
2723 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2724 obstack_1grow (&collect_obstack, '=');
2726 for_each_path (paths, do_multi, 0, add_to_obstack, &info);
2728 obstack_1grow (&collect_obstack, '\0');
2729 return XOBFINISH (&collect_obstack, char *);
2732 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2736 putenv_from_prefixes (const struct path_prefix *paths, const char *env_var,
2739 xputenv (build_search_list (paths, env_var, true, do_multi));
2742 /* Check whether NAME can be accessed in MODE. This is like access,
2743 except that it never considers directories to be executable. */
2746 access_check (const char *name, int mode)
2752 if (stat (name, &st) < 0
2753 || S_ISDIR (st.st_mode))
2757 return access (name, mode);
2760 /* Callback for find_a_file. Appends the file name to the directory
2761 path. If the resulting file exists in the right mode, return the
2762 full pathname to the file. */
2764 struct file_at_path_info {
2773 file_at_path (char *path, void *data)
2775 struct file_at_path_info *info = (struct file_at_path_info *) data;
2776 size_t len = strlen (path);
2778 memcpy (path + len, info->name, info->name_len);
2779 len += info->name_len;
2781 /* Some systems have a suffix for executable files.
2782 So try appending that first. */
2783 if (info->suffix_len)
2785 memcpy (path + len, info->suffix, info->suffix_len + 1);
2786 if (access_check (path, info->mode) == 0)
2791 if (access_check (path, info->mode) == 0)
2797 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2798 access to check permissions. If DO_MULTI is true, search multilib
2799 paths then non-multilib paths, otherwise do not search multilib paths.
2800 Return 0 if not found, otherwise return its name, allocated with malloc. */
2803 find_a_file (const struct path_prefix *pprefix, const char *name, int mode,
2806 struct file_at_path_info info;
2808 #ifdef DEFAULT_ASSEMBLER
2809 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2810 return xstrdup (DEFAULT_ASSEMBLER);
2813 #ifdef DEFAULT_LINKER
2814 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2815 return xstrdup (DEFAULT_LINKER);
2818 /* Determine the filename to execute (special case for absolute paths). */
2820 if (IS_ABSOLUTE_PATH (name))
2822 if (access (name, mode) == 0)
2823 return xstrdup (name);
2829 info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "";
2830 info.name_len = strlen (info.name);
2831 info.suffix_len = strlen (info.suffix);
2834 return (char*) for_each_path (pprefix, do_multi,
2835 info.name_len + info.suffix_len,
2836 file_at_path, &info);
2839 /* Ranking of prefixes in the sort list. -B prefixes are put before
2842 enum path_prefix_priority
2844 PREFIX_PRIORITY_B_OPT,
2845 PREFIX_PRIORITY_LAST
2848 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2849 order according to PRIORITY. Within each PRIORITY, new entries are
2852 If WARN is nonzero, we will warn if no file is found
2853 through this prefix. WARN should point to an int
2854 which will be set to 1 if this entry is used.
2856 COMPONENT is the value to be passed to update_path.
2858 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2859 the complete value of machine_suffix.
2860 2 means try both machine_suffix and just_machine_suffix. */
2863 add_prefix (struct path_prefix *pprefix, const char *prefix,
2864 const char *component, /* enum prefix_priority */ int priority,
2865 int require_machine_suffix, int os_multilib)
2867 struct prefix_list *pl, **prev;
2870 for (prev = &pprefix->plist;
2871 (*prev) != NULL && (*prev)->priority <= priority;
2872 prev = &(*prev)->next)
2875 /* Keep track of the longest prefix. */
2877 prefix = update_path (prefix, component);
2878 len = strlen (prefix);
2879 if (len > pprefix->max_len)
2880 pprefix->max_len = len;
2882 pl = XNEW (struct prefix_list);
2883 pl->prefix = prefix;
2884 pl->require_machine_suffix = require_machine_suffix;
2885 pl->priority = priority;
2886 pl->os_multilib = os_multilib;
2888 /* Insert after PREV. */
2893 /* Same as add_prefix, but prepending target_system_root to prefix. */
2894 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2896 add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
2897 const char *component,
2898 /* enum prefix_priority */ int priority,
2899 int require_machine_suffix, int os_multilib)
2901 if (!IS_ABSOLUTE_PATH (prefix))
2902 fatal ("system path '%s' is not absolute", prefix);
2904 if (target_system_root)
2906 if (target_sysroot_suffix)
2907 prefix = concat (target_sysroot_suffix, prefix, NULL);
2908 prefix = concat (target_system_root, prefix, NULL);
2910 /* We have to override this because GCC's notion of sysroot
2911 moves along with GCC. */
2915 add_prefix (pprefix, prefix, component, priority,
2916 require_machine_suffix, os_multilib);
2919 /* Execute the command specified by the arguments on the current line of spec.
2920 When using pipes, this includes several piped-together commands
2921 with `|' between them.
2923 Return 0 if successful, -1 if failed. */
2929 int n_commands; /* # of command. */
2931 struct pex_obj *pex;
2934 const char *prog; /* program name. */
2935 const char **argv; /* vector of args. */
2938 struct command *commands; /* each command buffer with above info. */
2940 gcc_assert (!processing_spec_function);
2944 string = find_a_file (&exec_prefixes, argbuf[0], X_OK, false);
2945 argbuf[0] = (string) ? string : argbuf[0];
2946 insert_wrapper (wrapper_string);
2949 /* Count # of piped commands. */
2950 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2951 if (strcmp (argbuf[i], "|") == 0)
2954 /* Get storage for each command. */
2955 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2957 /* Split argbuf into its separate piped processes,
2958 and record info about each one.
2959 Also search for the programs that are to be run. */
2961 commands[0].prog = argbuf[0]; /* first command. */
2962 commands[0].argv = &argbuf[0];
2964 if (!wrapper_string)
2966 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false);
2967 commands[0].argv[0] = (string) ? string : commands[0].argv[0];
2970 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2971 if (strcmp (argbuf[i], "|") == 0)
2972 { /* each command. */
2973 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2974 fatal ("-pipe not supported");
2976 argbuf[i] = 0; /* termination of command args. */
2977 commands[n_commands].prog = argbuf[i + 1];
2978 commands[n_commands].argv = &argbuf[i + 1];
2979 string = find_a_file (&exec_prefixes, commands[n_commands].prog,
2982 commands[n_commands].argv[0] = string;
2986 argbuf[argbuf_index] = 0;
2988 /* If -v, print what we are about to do, and maybe query. */
2992 /* For help listings, put a blank line between sub-processes. */
2993 if (print_help_list)
2994 fputc ('\n', stderr);
2996 /* Print each piped command as a separate line. */
2997 for (i = 0; i < n_commands; i++)
2999 const char *const *j;
3001 if (verbose_only_flag)
3003 for (j = commands[i].argv; *j; j++)
3006 fprintf (stderr, " \"");
3007 for (p = *j; *p; ++p)
3009 if (*p == '"' || *p == '\\' || *p == '$')
3010 fputc ('\\', stderr);
3013 fputc ('"', stderr);
3017 for (j = commands[i].argv; *j; j++)
3018 fprintf (stderr, " %s", *j);
3020 /* Print a pipe symbol after all but the last command. */
3021 if (i + 1 != n_commands)
3022 fprintf (stderr, " |");
3023 fprintf (stderr, "\n");
3026 if (verbose_only_flag != 0)
3028 /* verbose_only_flag should act as if the spec was
3029 executed, so increment execution_count before
3030 returning. This prevents spurious warnings about
3031 unused linker input files, etc. */
3036 notice ("\nGo ahead? (y or n) ");
3040 while (getchar () != '\n')
3043 if (i != 'y' && i != 'Y')
3048 #ifdef ENABLE_VALGRIND_CHECKING
3049 /* Run the each command through valgrind. To simplify prepending the
3050 path to valgrind and the option "-q" (for quiet operation unless
3051 something triggers), we allocate a separate argv array. */
3053 for (i = 0; i < n_commands; i++)
3059 for (argc = 0; commands[i].argv[argc] != NULL; argc++)
3062 argv = XALLOCAVEC (const char *, argc + 3);
3064 argv[0] = VALGRIND_PATH;
3066 for (j = 2; j < argc + 2; j++)
3067 argv[j] = commands[i].argv[j - 2];
3070 commands[i].argv = argv;
3071 commands[i].prog = argv[0];
3075 /* Run each piped subprocess. */
3077 pex = pex_init (PEX_USE_PIPES | ((report_times || report_times_to_file)
3078 ? PEX_RECORD_TIMES : 0),
3079 programname, temp_filename);
3081 pfatal_with_name (_("pex_init failed"));
3083 for (i = 0; i < n_commands; i++)
3087 const char *string = commands[i].argv[0];
3089 errmsg = pex_run (pex,
3090 ((i + 1 == n_commands ? PEX_LAST : 0)
3091 | (string == commands[i].prog ? PEX_SEARCH : 0)),
3092 string, CONST_CAST (char **, commands[i].argv),
3101 pfatal_with_name (errmsg);
3105 if (string != commands[i].prog)
3106 free (CONST_CAST (char *, string));
3111 /* Wait for all the subprocesses to finish. */
3115 struct pex_time *times = NULL;
3118 statuses = (int *) alloca (n_commands * sizeof (int));
3119 if (!pex_get_status (pex, n_commands, statuses))
3120 pfatal_with_name (_("failed to get exit status"));
3122 if (report_times || report_times_to_file)
3124 times = (struct pex_time *) alloca (n_commands * sizeof (struct pex_time));
3125 if (!pex_get_times (pex, n_commands, times))
3126 pfatal_with_name (_("failed to get process times"));
3131 for (i = 0; i < n_commands; ++i)
3133 int status = statuses[i];
3135 if (WIFSIGNALED (status))
3138 /* SIGPIPE is a special case. It happens in -pipe mode
3139 when the compiler dies before the preprocessor is done,
3140 or the assembler dies before the compiler is done.
3141 There's generally been an error already, and this is
3142 just fallout. So don't generate another error unless
3143 we would otherwise have succeeded. */
3144 if (WTERMSIG (status) == SIGPIPE
3145 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
3153 Internal error: %s (program %s)\n\
3154 Please submit a full bug report.\n\
3155 See %s for instructions.",
3156 strsignal (WTERMSIG (status)), commands[i].prog,
3159 else if (WIFEXITED (status)
3160 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
3162 if (WEXITSTATUS (status) > greatest_status)
3163 greatest_status = WEXITSTATUS (status);
3167 if (report_times || report_times_to_file)
3169 struct pex_time *pt = ×[i];
3172 ut = ((double) pt->user_seconds
3173 + (double) pt->user_microseconds / 1.0e6);
3174 st = ((double) pt->system_seconds
3175 + (double) pt->system_microseconds / 1.0e6);
3180 notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
3182 if (report_times_to_file)
3185 const char *const *j;
3187 fprintf (report_times_to_file, "%g %g", ut, st);
3189 for (j = &commands[i].prog; *j; j = &commands[i].argv[++c])
3192 for (p = *j; *p; ++p)
3193 if (*p == '"' || *p == '\\' || *p == '$'
3199 fprintf (report_times_to_file, " \"");
3200 for (p = *j; *p; ++p)
3202 if (*p == '"' || *p == '\\' || *p == '$')
3203 fputc ('\\', report_times_to_file);
3204 fputc (*p, report_times_to_file);
3206 fputc ('"', report_times_to_file);
3209 fprintf (report_times_to_file, " %s", *j);
3212 fputc ('\n', report_times_to_file);
3222 /* Find all the switches given to us
3223 and make a vector describing them.
3224 The elements of the vector are strings, one per switch given.
3225 If a switch uses following arguments, then the `part1' field
3226 is the switch itself and the `args' field
3227 is a null-terminated vector containing the following arguments.
3228 Bits in the `live_cond' field are:
3229 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3230 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3231 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3232 The `validated' field is nonzero if any spec has looked at this switch;
3233 if it remains zero at the end of the run, it must be meaningless. */
3235 #define SWITCH_LIVE 0x1
3236 #define SWITCH_FALSE 0x2
3237 #define SWITCH_IGNORE 0x4
3243 unsigned int live_cond;
3244 unsigned char validated;
3245 unsigned char ordering;
3248 static struct switchstr *switches;
3250 static int n_switches;
3252 /* Set to zero if -fcompare-debug is disabled, positive if it's
3253 enabled and we're running the first compilation, negative if it's
3254 enabled and we're running the second compilation. For most of the
3255 time, it's in the range -1..1, but it can be temporarily set to 2
3256 or 3 to indicate that the -fcompare-debug flags didn't come from
3257 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3258 variable, until a synthesized -fcompare-debug flag is added to the
3262 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3263 int compare_debug_second;
3265 /* Set to the flags that should be passed to the second compilation in
3266 a -fcompare-debug compilation. */
3267 const char *compare_debug_opt;
3269 static struct switchstr *switches_debug_check[2];
3271 static int n_switches_debug_check[2];
3273 static char *debug_check_temp_file[2];
3275 /* Language is one of three things:
3277 1) The name of a real programming language.
3278 2) NULL, indicating that no one has figured out
3280 3) '*', indicating that the file should be passed
3285 const char *language;
3286 struct compiler *incompiler;
3291 /* Also a vector of input files specified. */
3293 static struct infile *infiles;
3297 /* True if multiple input files are being compiled to a single
3300 static bool combine_inputs;
3302 /* This counts the number of libraries added by lang_specific_driver, so that
3303 we can tell if there were any user supplied any files or libraries. */
3305 static int added_libraries;
3307 /* And a vector of corresponding output files is made up later. */
3309 const char **outfiles;
3311 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3313 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3314 is true if we should look for an executable suffix. DO_OBJ
3315 is true if we should look for an object suffix. */
3318 convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
3319 int do_obj ATTRIBUTE_UNUSED)
3321 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3329 len = strlen (name);
3331 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3332 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3333 if (do_obj && len > 2
3334 && name[len - 2] == '.'
3335 && name[len - 1] == 'o')
3337 obstack_grow (&obstack, name, len - 2);
3338 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
3339 name = XOBFINISH (&obstack, const char *);
3343 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3344 /* If there is no filetype, make it the executable suffix (which includes
3345 the "."). But don't get confused if we have just "-o". */
3346 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
3349 for (i = len - 1; i >= 0; i--)
3350 if (IS_DIR_SEPARATOR (name[i]))
3353 for (i++; i < len; i++)
3357 obstack_grow (&obstack, name, len);
3358 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
3359 strlen (TARGET_EXECUTABLE_SUFFIX));
3360 name = XOBFINISH (&obstack, const char *);
3367 /* Display the command line switches accepted by gcc. */
3371 printf (_("Usage: %s [options] file...\n"), programname);
3372 fputs (_("Options:\n"), stdout);
3374 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
3375 fputs (_(" --help Display this information\n"), stdout);
3376 fputs (_(" --target-help Display target specific command line options\n"), stdout);
3377 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout);
3378 fputs (_(" Display specific types of command line options\n"), stdout);
3380 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
3381 fputs (_(" --version Display compiler version information\n"), stdout);
3382 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
3383 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
3384 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
3385 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
3386 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
3387 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
3388 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
3389 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
3391 -print-multi-lib Display the mapping between command line options and\n\
3392 multiple library search directories\n"), stdout);
3393 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
3394 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout);
3395 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout);
3396 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
3397 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
3398 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
3399 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout);
3400 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout);
3401 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
3402 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout);
3403 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
3404 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout);
3406 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3407 prefixes to other gcc components\n"), stdout);
3408 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
3409 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
3410 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
3411 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
3413 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3414 and libraries\n"), stdout);
3415 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
3416 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
3417 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
3418 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
3419 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
3420 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3421 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3422 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3423 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3425 -x <language> Specify the language of the following input files\n\
3426 Permissible languages include: c c++ assembler none\n\
3427 'none' means revert to the default behavior of\n\
3428 guessing the language based on the file's extension\n\
3432 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3433 passed on to the various sub-processes invoked by %s. In order to pass\n\
3434 other options on to these processes the -W<letter> options must be used.\n\
3437 /* The rest of the options are displayed by invocations of the various
3442 add_preprocessor_option (const char *option, int len)
3444 n_preprocessor_options++;
3446 if (! preprocessor_options)
3447 preprocessor_options = XNEWVEC (char *, n_preprocessor_options);
3449 preprocessor_options = XRESIZEVEC (char *, preprocessor_options,
3450 n_preprocessor_options);
3452 preprocessor_options [n_preprocessor_options - 1] =
3453 save_string (option, len);
3457 add_assembler_option (const char *option, int len)
3459 n_assembler_options++;
3461 if (! assembler_options)
3462 assembler_options = XNEWVEC (char *, n_assembler_options);
3464 assembler_options = XRESIZEVEC (char *, assembler_options,
3465 n_assembler_options);
3467 assembler_options [n_assembler_options - 1] = save_string (option, len);
3471 add_linker_option (const char *option, int len)
3475 if (! linker_options)
3476 linker_options = XNEWVEC (char *, n_linker_options);
3478 linker_options = XRESIZEVEC (char *, linker_options, n_linker_options);
3480 linker_options [n_linker_options - 1] = save_string (option, len);
3483 /* Create the vector `switches' and its contents.
3484 Store its length in `n_switches'. */
3487 process_command (int argc, const char **argv)
3492 const char *spec_lang = 0;
3493 int last_language_n_infiles;
3494 int lang_n_infiles = 0;
3495 #ifdef MODIFY_TARGET_NAME
3496 int is_modify_target_name;
3499 const char *tooldir_prefix;
3500 char *(*get_relative_prefix) (const char *, const char *,
3501 const char *) = NULL;
3503 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3507 added_libraries = 0;
3509 /* Figure compiler version from version string. */
3511 compiler_version = temp1 = xstrdup (version_string);
3513 for (; *temp1; ++temp1)
3522 /* If there is a -V or -b option (or both), process it now, before
3523 trying to interpret the rest of the command line.
3524 Use heuristic that all configuration names must have at least
3525 one dash '-'. This allows us to pass options starting with -b. */
3526 if (argc > 1 && argv[1][0] == '-'
3527 && (argv[1][1] == 'V'
3528 || (argv[1][1] == 'b'
3529 && (argv[1][2] == '\0'
3530 || NULL != strchr (argv[1] + 2, '-')))))
3532 const char *new_version = DEFAULT_TARGET_VERSION;
3533 const char *new_machine = DEFAULT_TARGET_MACHINE;
3534 const char *progname = argv[0];
3542 while (argc > 1 && argv[1][0] == '-'
3543 && (argv[1][1] == 'V'
3544 || (argv[1][1] == 'b'
3545 && (argv[1][2] == '\0'
3546 || NULL != strchr (argv[1] + 2, '-')))))
3548 char opt = argv[1][1];
3550 if (argv[1][2] != '\0')
3563 fatal ("'-%c' option must have argument", opt);
3570 for (baselen = strlen (progname); baselen > 0; baselen--)
3571 if (IS_DIR_SEPARATOR (progname[baselen-1]))
3573 new_argv0 = XDUPVAR (char, progname, baselen,
3574 baselen + concat_length (new_version, new_machine,
3575 "-gcc-", NULL) + 1);
3576 strcpy (new_argv0 + baselen, new_machine);
3577 strcat (new_argv0, "-gcc-");
3578 strcat (new_argv0, new_version);
3580 new_argv = XDUPVEC (char *, argv, argc + 1);
3581 new_argv[0] = new_argv0;
3583 errmsg = pex_one (PEX_SEARCH, new_argv0, new_argv, progname, NULL,
3584 NULL, &status, &err);
3589 fatal ("couldn't run '%s': %s", new_argv0, errmsg);
3591 fatal ("couldn't run '%s': %s: %s", new_argv0, errmsg,
3597 /* Convert new-style -- options to old-style. */
3598 translate_options (&argc,
3599 CONST_CAST2 (const char *const **, const char ***,
3602 /* Do language-specific adjustment/addition of flags. */
3603 lang_specific_driver (&argc,
3604 CONST_CAST2 (const char *const **, const char ***,
3608 /* Handle any -no-canonical-prefixes flag early, to assign the function
3609 that builds relative prefixes. This function creates default search
3610 paths that are needed later in normal option handling. */
3612 for (i = 1; i < argc; i++)
3614 if (! strcmp (argv[i], "-no-canonical-prefixes"))
3616 get_relative_prefix = make_relative_prefix_ignore_links;
3620 if (! get_relative_prefix)
3621 get_relative_prefix = make_relative_prefix;
3623 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3624 see if we can create it from the pathname specified in argv[0]. */
3626 gcc_libexec_prefix = standard_libexec_prefix;
3628 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3629 if (!gcc_exec_prefix)
3631 gcc_exec_prefix = get_relative_prefix (argv[0],
3632 standard_bindir_prefix,
3633 standard_exec_prefix);
3634 gcc_libexec_prefix = get_relative_prefix (argv[0],
3635 standard_bindir_prefix,
3636 standard_libexec_prefix);
3637 if (gcc_exec_prefix)
3638 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3642 /* make_relative_prefix requires a program name, but
3643 GCC_EXEC_PREFIX is typically a directory name with a trailing
3644 / (which is ignored by make_relative_prefix), so append a
3646 char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL);
3647 gcc_libexec_prefix = get_relative_prefix (tmp_prefix,
3648 standard_exec_prefix,
3649 standard_libexec_prefix);
3651 /* The path is unrelocated, so fallback to the original setting. */
3652 if (!gcc_libexec_prefix)
3653 gcc_libexec_prefix = standard_libexec_prefix;
3659 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3660 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3661 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3663 if (gcc_exec_prefix)
3665 int len = strlen (gcc_exec_prefix);
3667 if (len > (int) sizeof ("/lib/gcc/") - 1
3668 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3670 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
3671 if (IS_DIR_SEPARATOR (*temp)
3672 && strncmp (temp + 1, "lib", 3) == 0
3673 && IS_DIR_SEPARATOR (temp[4])
3674 && strncmp (temp + 5, "gcc", 3) == 0)
3675 len -= sizeof ("/lib/gcc/") - 1;
3678 set_std_prefix (gcc_exec_prefix, len);
3679 add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
3680 PREFIX_PRIORITY_LAST, 0, 0);
3681 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3682 PREFIX_PRIORITY_LAST, 0, 0);
3685 /* COMPILER_PATH and LIBRARY_PATH have values
3686 that are lists of directory names with colons. */
3688 GET_ENVIRONMENT (temp, "COMPILER_PATH");
3691 const char *startp, *endp;
3692 char *nstore = (char *) alloca (strlen (temp) + 3);
3694 startp = endp = temp;
3697 if (*endp == PATH_SEPARATOR || *endp == 0)
3699 strncpy (nstore, startp, endp - startp);
3701 strcpy (nstore, concat (".", dir_separator_str, NULL));
3702 else if (!IS_DIR_SEPARATOR (endp[-1]))
3704 nstore[endp - startp] = DIR_SEPARATOR;
3705 nstore[endp - startp + 1] = 0;
3708 nstore[endp - startp] = 0;
3709 add_prefix (&exec_prefixes, nstore, 0,
3710 PREFIX_PRIORITY_LAST, 0, 0);
3711 add_prefix (&include_prefixes, nstore, 0,
3712 PREFIX_PRIORITY_LAST, 0, 0);
3715 endp = startp = endp + 1;
3722 GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
3723 if (temp && *cross_compile == '0')
3725 const char *startp, *endp;
3726 char *nstore = (char *) alloca (strlen (temp) + 3);
3728 startp = endp = temp;
3731 if (*endp == PATH_SEPARATOR || *endp == 0)
3733 strncpy (nstore, startp, endp - startp);
3735 strcpy (nstore, concat (".", dir_separator_str, NULL));
3736 else if (!IS_DIR_SEPARATOR (endp[-1]))
3738 nstore[endp - startp] = DIR_SEPARATOR;
3739 nstore[endp - startp + 1] = 0;
3742 nstore[endp - startp] = 0;
3743 add_prefix (&startfile_prefixes, nstore, NULL,
3744 PREFIX_PRIORITY_LAST, 0, 1);
3747 endp = startp = endp + 1;
3754 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3755 GET_ENVIRONMENT (temp, "LPATH");
3756 if (temp && *cross_compile == '0')
3758 const char *startp, *endp;
3759 char *nstore = (char *) alloca (strlen (temp) + 3);
3761 startp = endp = temp;
3764 if (*endp == PATH_SEPARATOR || *endp == 0)
3766 strncpy (nstore, startp, endp - startp);
3768 strcpy (nstore, concat (".", dir_separator_str, NULL));
3769 else if (!IS_DIR_SEPARATOR (endp[-1]))
3771 nstore[endp - startp] = DIR_SEPARATOR;
3772 nstore[endp - startp + 1] = 0;
3775 nstore[endp - startp] = 0;
3776 add_prefix (&startfile_prefixes, nstore, NULL,
3777 PREFIX_PRIORITY_LAST, 0, 1);
3780 endp = startp = endp + 1;
3787 /* Scan argv twice. Here, the first time, just count how many switches
3788 there will be in their vector, and how many input files in theirs.
3789 Here we also parse the switches that cc itself uses (e.g. -v). */
3791 for (i = 1; i < argc; i++)
3793 if (! strcmp (argv[i], "-dumpspecs"))
3795 struct spec_list *sl;
3797 for (sl = specs; sl; sl = sl->next)
3798 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3799 if (link_command_spec)
3800 printf ("*link_command:\n%s\n\n", link_command_spec);
3803 else if (! strcmp (argv[i], "-dumpversion"))
3805 printf ("%s\n", spec_version);
3808 else if (! strcmp (argv[i], "-dumpmachine"))
3810 printf ("%s\n", spec_machine);
3813 else if (strcmp (argv[i], "-fversion") == 0)
3815 /* translate_options () has turned --version into -fversion. */
3818 /* We will be passing a dummy file on to the sub-processes. */
3822 /* CPP driver cannot obtain switch from cc1_options. */
3824 add_preprocessor_option ("--version", strlen ("--version"));
3825 add_assembler_option ("--version", strlen ("--version"));
3826 add_linker_option ("--version", strlen ("--version"));
3828 else if (strcmp (argv[i], "-fhelp") == 0)
3830 /* translate_options () has turned --help into -fhelp. */
3831 print_help_list = 1;
3833 /* We will be passing a dummy file on to the sub-processes. */
3837 /* CPP driver cannot obtain switch from cc1_options. */
3839 add_preprocessor_option ("--help", 6);
3840 add_assembler_option ("--help", 6);
3841 add_linker_option ("--help", 6);
3843 else if (strncmp (argv[i], "-fhelp=", 7) == 0)
3845 /* translate_options () has turned --help into -fhelp. */
3846 print_subprocess_help = 2;
3848 /* We will be passing a dummy file on to the sub-processes. */
3852 else if (strcmp (argv[i], "-ftarget-help") == 0)
3854 /* translate_options() has turned --target-help into -ftarget-help. */
3855 print_subprocess_help = 1;
3857 /* We will be passing a dummy file on to the sub-processes. */
3861 /* CPP driver cannot obtain switch from cc1_options. */
3863 add_preprocessor_option ("--target-help", 13);
3864 add_assembler_option ("--target-help", 13);
3865 add_linker_option ("--target-help", 13);
3867 else if (! strcmp (argv[i], "-pass-exit-codes"))
3869 pass_exit_codes = 1;
3872 else if (! strcmp (argv[i], "-print-search-dirs"))
3873 print_search_dirs = 1;
3874 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3875 print_file_name = "libgcc.a";
3876 else if (! strncmp (argv[i], "-print-file-name=", 17))
3877 print_file_name = argv[i] + 17;
3878 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3879 print_prog_name = argv[i] + 17;
3880 else if (! strcmp (argv[i], "-print-multi-lib"))
3881 print_multi_lib = 1;
3882 else if (! strcmp (argv[i], "-print-multi-directory"))
3883 print_multi_directory = 1;
3884 else if (! strcmp (argv[i], "-print-sysroot"))
3886 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3887 print_multi_os_directory = 1;
3888 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
3889 print_sysroot_headers_suffix = 1;
3890 else if (! strcmp (argv[i], "-fcompare-debug-second"))
3892 compare_debug_second = 1;
3895 else if (! strcmp (argv[i], "-fno-compare-debug"))
3897 argv[i] = "-fcompare-debug=";
3898 goto compare_debug_with_arg;
3900 else if (! strcmp (argv[i], "-fcompare-debug"))
3902 argv[i] = "-fcompare-debug=-gtoggle";
3903 goto compare_debug_with_arg;
3905 #define OPT "-fcompare-debug="
3906 else if (! strncmp (argv[i], OPT, sizeof (OPT) - 1))
3909 compare_debug_with_arg:
3910 opt = argv[i] + sizeof (OPT) - 1;
3916 if (compare_debug < 0)
3917 compare_debug_opt = NULL;
3919 compare_debug_opt = opt;
3922 else if (! strncmp (argv[i], "-Wa,", 4))
3925 /* Pass the rest of this option to the assembler. */
3927 /* Split the argument at commas. */
3929 for (j = 4; argv[i][j]; j++)
3930 if (argv[i][j] == ',')
3932 add_assembler_option (argv[i] + prev, j - prev);
3936 /* Record the part after the last comma. */
3937 add_assembler_option (argv[i] + prev, j - prev);
3939 else if (! strncmp (argv[i], "-Wp,", 4))
3942 /* Pass the rest of this option to the preprocessor. */
3944 /* Split the argument at commas. */
3946 for (j = 4; argv[i][j]; j++)
3947 if (argv[i][j] == ',')
3949 add_preprocessor_option (argv[i] + prev, j - prev);
3953 /* Record the part after the last comma. */
3954 add_preprocessor_option (argv[i] + prev, j - prev);
3956 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3957 /* The +e options to the C++ front-end. */
3959 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3962 /* Split the argument at commas. */
3963 for (j = 3; argv[i][j]; j++)
3964 n_infiles += (argv[i][j] == ',');
3966 else if (strcmp (argv[i], "-Xlinker") == 0)
3969 fatal ("argument to '-Xlinker' is missing");
3974 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3977 fatal ("argument to '-Xpreprocessor' is missing");
3979 add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
3981 else if (strcmp (argv[i], "-Xassembler") == 0)
3984 fatal ("argument to '-Xassembler' is missing");
3986 add_assembler_option (argv[i+1], strlen (argv[i+1]));
3988 else if (strcmp (argv[i], "-l") == 0)
3991 fatal ("argument to '-l' is missing");
3996 else if (strncmp (argv[i], "-l", 2) == 0)
3998 else if (strcmp (argv[i], "-save-temps") == 0)
4000 save_temps_flag = SAVE_TEMPS_CWD;
4003 else if (strncmp (argv[i], "-save-temps=", 12) == 0)
4006 if (strcmp (argv[i]+12, "cwd") == 0)
4007 save_temps_flag = SAVE_TEMPS_CWD;
4008 else if (strcmp (argv[i]+12, "obj") == 0
4009 || strcmp (argv[i]+12, "object") == 0)
4010 save_temps_flag = SAVE_TEMPS_OBJ;
4012 fatal ("'%s' is an unknown -save-temps option", argv[i]);
4014 else if (strcmp (argv[i], "-no-canonical-prefixes") == 0)
4015 /* Already handled as a special case, so ignored here. */
4017 else if (strcmp (argv[i], "-combine") == 0)
4022 else if (strcmp (argv[i], "-specs") == 0)
4024 struct user_specs *user = XNEW (struct user_specs);
4026 fatal ("argument to '-specs' is missing");
4028 user->next = (struct user_specs *) 0;
4029 user->filename = argv[i];
4030 if (user_specs_tail)
4031 user_specs_tail->next = user;
4033 user_specs_head = user;
4034 user_specs_tail = user;
4036 else if (strncmp (argv[i], "-specs=", 7) == 0)
4038 struct user_specs *user = XNEW (struct user_specs);
4039 if (strlen (argv[i]) == 7)
4040 fatal ("argument to '-specs=' is missing");
4042 user->next = (struct user_specs *) 0;
4043 user->filename = argv[i] + 7;
4044 if (user_specs_tail)
4045 user_specs_tail->next = user;
4047 user_specs_head = user;
4048 user_specs_tail = user;
4050 else if (strcmp (argv[i], "-time") == 0)
4052 else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
4054 if (report_times_to_file)
4055 fclose (report_times_to_file);
4056 report_times_to_file = fopen (argv[i] + sizeof ("-time=") - 1, "a");
4058 else if (strcmp (argv[i], "-pipe") == 0)
4060 /* -pipe has to go into the switches array as well as
4065 else if (strcmp (argv[i], "-wrapper") == 0)
4068 fatal ("argument to '-wrapper' is missing");
4070 wrapper_string = argv[i];
4074 else if (strcmp (argv[i], "-###") == 0)
4076 /* This is similar to -v except that there is no execution
4077 of the commands and the echoed arguments are quoted. It
4078 is intended for use in shell scripts to capture the
4079 driver-generated command line. */
4080 verbose_only_flag++;
4083 else if (argv[i][0] == '-' && argv[i][1] != 0)
4085 const char *p = &argv[i][1];
4091 if (p[1] && NULL == strchr (argv[i] + 2, '-'))
4096 fatal ("'-%c' must come at the start of the command line", c);
4104 if (p[1] == 0 && i + 1 == argc)
4105 fatal ("argument to '-B' is missing");
4111 len = strlen (value);
4113 /* Catch the case where the user has forgotten to append a
4114 directory separator to the path. Note, they may be using
4115 -B to add an executable name prefix, eg "i386-elf-", in
4116 order to distinguish between multiple installations of
4117 GCC in the same directory. Hence we must check to see
4118 if appending a directory separator actually makes a
4119 valid directory name. */
4120 if (! IS_DIR_SEPARATOR (value [len - 1])
4121 && is_directory (value, false))
4123 char *tmp = XNEWVEC (char, len + 2);
4124 strcpy (tmp, value);
4125 tmp[len] = DIR_SEPARATOR;
4130 add_prefix (&exec_prefixes, value, NULL,
4131 PREFIX_PRIORITY_B_OPT, 0, 0);
4132 add_prefix (&startfile_prefixes, value, NULL,
4133 PREFIX_PRIORITY_B_OPT, 0, 0);
4134 add_prefix (&include_prefixes, value, NULL,
4135 PREFIX_PRIORITY_B_OPT, 0, 0);
4140 case 'v': /* Print our subcommands and print versions. */
4142 /* If they do anything other than exactly `-v', don't set
4143 verbose_flag; rather, continue on to give the error. */
4162 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
4167 /* Forward scan, just in case -S, -E or -c is specified
4174 if (argv[j][0] == '-')
4176 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
4182 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
4183 j += skip - (argv[j][2] != 0);
4184 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
4191 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4193 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
4195 argv[i] = convert_filename (argv[i], ! have_c, 0);
4197 /* Save the output name in case -save-temps=obj was used. */
4198 if ((p[1] == 0) && argv[i + 1])
4199 save_temps_prefix = xstrdup(argv[i + 1]);
4201 save_temps_prefix = xstrdup(argv[i] + 1);
4207 #ifdef MODIFY_TARGET_NAME
4208 is_modify_target_name = 0;
4210 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4211 if (! strcmp (argv[i], modify_target[j].sw))
4213 char *new_name = XNEWVEC (char, strlen (modify_target[j].str)
4214 + strlen (spec_machine));
4217 int made_addition = 0;
4219 is_modify_target_name = 1;
4220 for (p = spec_machine, q = new_name; *p != 0; )
4222 if (modify_target[j].add_del == DELETE
4223 && (! strncmp (q, modify_target[j].str,
4224 strlen (modify_target[j].str))))
4225 p += strlen (modify_target[j].str);
4226 else if (modify_target[j].add_del == ADD
4227 && ! made_addition && *p == '-')
4229 for (r = modify_target[j].str; *r != 0; )
4237 spec_machine = new_name;
4240 if (is_modify_target_name)
4246 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
4247 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
4248 else if (WORD_SWITCH_TAKES_ARG (p))
4249 i += WORD_SWITCH_TAKES_ARG (p);
4259 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4260 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4261 if (save_temps_flag == SAVE_TEMPS_OBJ && save_temps_prefix != NULL)
4263 save_temps_length = strlen (save_temps_prefix);
4264 temp = strrchr (lbasename (save_temps_prefix), '.');
4267 save_temps_length -= strlen (temp);
4268 save_temps_prefix[save_temps_length] = '\0';
4272 else if (save_temps_prefix != NULL)
4274 free (save_temps_prefix);
4275 save_temps_prefix = NULL;
4278 if (save_temps_flag && use_pipes)
4280 /* -save-temps overrides -pipe, so that temp files are produced */
4281 if (save_temps_flag)
4282 error ("warning: -pipe ignored because -save-temps specified");
4288 const char *gcd = getenv ("GCC_COMPARE_DEBUG");
4290 if (gcd && gcd[0] == '-')
4293 compare_debug_opt = gcd;
4296 else if (gcd && *gcd && strcmp (gcd, "0"))
4299 compare_debug_opt = "-gtoggle";
4303 else if (compare_debug < 0)
4306 gcc_assert (!compare_debug_opt);
4309 /* Set up the search paths. We add directories that we expect to
4310 contain GNU Toolchain components before directories specified by
4311 the machine description so that we will find GNU components (like
4312 the GNU assembler) before those of the host system. */
4314 /* If we don't know where the toolchain has been installed, use the
4315 configured-in locations. */
4316 if (!gcc_exec_prefix)
4319 add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
4320 PREFIX_PRIORITY_LAST, 1, 0);
4321 add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
4322 PREFIX_PRIORITY_LAST, 2, 0);
4323 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
4324 PREFIX_PRIORITY_LAST, 2, 0);
4326 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
4327 PREFIX_PRIORITY_LAST, 1, 0);
4330 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix));
4331 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
4332 dir_separator_str, NULL);
4334 /* Look for tools relative to the location from which the driver is
4335 running, or, if that is not available, the configured prefix. */
4337 = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
4338 spec_machine, dir_separator_str,
4339 spec_version, dir_separator_str, tooldir_prefix, NULL);
4341 add_prefix (&exec_prefixes,
4342 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
4343 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
4344 add_prefix (&startfile_prefixes,
4345 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
4346 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
4348 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4349 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4350 then consider it to relocate with the rest of the GCC installation
4351 if GCC_EXEC_PREFIX is set.
4352 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4353 if (target_system_root && gcc_exec_prefix)
4355 char *tmp_prefix = get_relative_prefix (argv[0],
4356 standard_bindir_prefix,
4357 target_system_root);
4358 if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
4360 target_system_root = tmp_prefix;
4361 target_system_root_changed = 1;
4366 /* More prefixes are enabled in main, after we read the specs file
4367 and determine whether this is cross-compilation or not. */
4369 /* Then create the space for the vectors and scan again. */
4371 switches = XNEWVEC (struct switchstr, n_switches + 1);
4372 infiles = XNEWVEC (struct infile, n_infiles + 1);
4375 last_language_n_infiles = -1;
4377 /* This, time, copy the text of each switch and store a pointer
4378 to the copy in the vector of switches.
4379 Store all the infiles in their vector. */
4381 for (i = 1; i < argc; i++)
4383 /* Just skip the switches that were handled by the preceding loop. */
4384 #ifdef MODIFY_TARGET_NAME
4385 is_modify_target_name = 0;
4387 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4388 if (! strcmp (argv[i], modify_target[j].sw))
4389 is_modify_target_name = 1;
4391 if (is_modify_target_name)
4395 if (! strncmp (argv[i], "-Wa,", 4))
4397 else if (! strncmp (argv[i], "-Wp,", 4))
4399 else if (! strcmp (argv[i], "-no-canonical-prefixes"))
4401 else if (! strcmp (argv[i], "-pass-exit-codes"))
4403 else if (! strcmp (argv[i], "-print-search-dirs"))
4405 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
4407 else if (! strncmp (argv[i], "-print-file-name=", 17))
4409 else if (! strncmp (argv[i], "-print-prog-name=", 17))
4411 else if (! strcmp (argv[i], "-print-multi-lib"))
4413 else if (! strcmp (argv[i], "-print-multi-directory"))
4415 else if (! strcmp (argv[i], "-print-sysroot"))
4417 else if (! strcmp (argv[i], "-print-multi-os-directory"))
4419 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
4421 else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
4423 target_system_root = argv[i] + strlen ("--sysroot=");
4424 target_system_root_changed = 1;
4426 else if (argv[i][0] == '+' && argv[i][1] == 'e')
4428 /* Compensate for the +e options to the C++ front-end;
4429 they're there simply for cfront call-compatibility. We do
4430 some magic in default_compilers to pass them down properly.
4431 Note we deliberately start at the `+' here, to avoid passing
4432 -e0 or -e1 down into the linker. */
4433 switches[n_switches].part1 = &argv[i][0];
4434 switches[n_switches].args = 0;
4435 switches[n_switches].live_cond = 0;
4436 switches[n_switches].validated = 0;
4439 else if (strncmp (argv[i], "-Wl,", 4) == 0)
4442 /* Split the argument at commas. */
4444 for (j = 4; argv[i][j]; j++)
4445 if (argv[i][j] == ',')
4447 infiles[n_infiles].language = "*";
4448 infiles[n_infiles++].name
4449 = save_string (argv[i] + prev, j - prev);
4452 /* Record the part after the last comma. */
4453 infiles[n_infiles].language = "*";
4454 infiles[n_infiles++].name = argv[i] + prev;
4456 else if (strcmp (argv[i], "-Xlinker") == 0)
4458 infiles[n_infiles].language = "*";
4459 infiles[n_infiles++].name = argv[++i];
4461 /* Xassembler and Xpreprocessor were already handled in the first argv
4462 scan, so all we need to do here is ignore them and their argument. */
4463 else if (strcmp (argv[i], "-Xassembler") == 0)
4465 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
4467 else if (strcmp (argv[i], "-l") == 0)
4468 { /* POSIX allows separation of -l and the lib arg;
4469 canonicalize by concatenating -l with its arg */
4470 infiles[n_infiles].language = "*";
4471 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
4473 else if (strncmp (argv[i], "-l", 2) == 0)
4475 infiles[n_infiles].language = "*";
4476 infiles[n_infiles++].name = argv[i];
4478 else if (strcmp (argv[i], "-wrapper") == 0)
4480 else if (strcmp (argv[i], "-specs") == 0)
4482 else if (strncmp (argv[i], "-specs=", 7) == 0)
4484 else if (strcmp (argv[i], "-time") == 0)
4486 else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
4488 else if (strcmp (argv[i], "-###") == 0)
4490 else if (argv[i][0] == '-' && argv[i][1] != 0)
4492 const char *p = &argv[i][1];
4497 if (p[1] == 0 && i + 1 == argc)
4498 fatal ("argument to '-x' is missing");
4500 spec_lang = argv[++i];
4503 if (! strcmp (spec_lang, "none"))
4504 /* Suppress the warning if -xnone comes after the last input
4505 file, because alternate command interfaces like g++ might
4506 find it useful to place -xnone after each input file. */
4509 last_language_n_infiles = n_infiles;
4512 switches[n_switches].part1 = p;
4513 /* Deal with option arguments in separate argv elements. */
4514 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4515 || WORD_SWITCH_TAKES_ARG (p))
4518 int n_args = WORD_SWITCH_TAKES_ARG (p);
4522 /* Count only the option arguments in separate argv elements. */
4523 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4525 if (i + n_args >= argc)
4526 fatal ("argument to '-%s' is missing", p);
4527 switches[n_switches].args
4528 = XNEWVEC (const char *, n_args + 1);
4530 switches[n_switches].args[j++] = argv[++i];
4531 /* Null-terminate the vector. */
4532 switches[n_switches].args[j] = 0;
4534 else if (strchr (switches_need_spaces, c))
4536 /* On some systems, ld cannot handle some options without
4537 a space. So split the option from its argument. */
4538 char *part1 = XNEWVEC (char, 2);
4542 switches[n_switches].part1 = part1;
4543 switches[n_switches].args = XNEWVEC (const char *, 2);
4544 switches[n_switches].args[0] = xstrdup (p+1);
4545 switches[n_switches].args[1] = 0;
4548 switches[n_switches].args = 0;
4550 switches[n_switches].live_cond = 0;
4551 switches[n_switches].validated = 0;
4552 switches[n_switches].ordering = 0;
4553 /* These are always valid, since gcc.c itself understands the
4554 first four and gfortranspec.c understands -static-libgfortran. */
4555 if (!strcmp (p, "save-temps")
4556 || !strcmp (p, "static-libgcc")
4557 || !strcmp (p, "shared-libgcc")
4558 || !strcmp (p, "pipe")
4559 || !strcmp (p, "static-libgfortran"))
4560 switches[n_switches].validated = 1;
4563 char ch = switches[n_switches].part1[0];
4565 switches[n_switches].validated = 1;
4571 const char *p = strchr (argv[i], '@');
4573 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4574 argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
4577 fname = xstrdup (argv[i]);
4580 fname = (char *)xmalloc (p - argv[i] + 1);
4581 memcpy (fname, argv[i], p - argv[i]);
4582 fname[p - argv[i]] = '\0';
4585 if (strcmp (fname, "-") != 0 && access (fname, F_OK) < 0)
4587 perror_with_name (fname);
4592 infiles[n_infiles].language = spec_lang;
4593 infiles[n_infiles++].name = argv[i];
4600 if (n_infiles == last_language_n_infiles && spec_lang != 0)
4601 error ("warning: '-x %s' after last input file has no effect", spec_lang);
4603 if (compare_debug == 2 || compare_debug == 3)
4605 switches[n_switches].part1 = concat ("fcompare-debug=",
4608 switches[n_switches].args = 0;
4609 switches[n_switches].live_cond = 0;
4610 switches[n_switches].validated = 0;
4611 switches[n_switches].ordering = 0;
4616 /* Ensure we only invoke each subprocess once. */
4617 if (print_subprocess_help || print_help_list || print_version)
4621 /* Create a dummy input file, so that we can pass
4622 the help option on to the various sub-processes. */
4623 infiles[0].language = "c";
4624 infiles[0].name = "help-dummy";
4627 switches[n_switches].part1 = 0;
4628 infiles[n_infiles].name = 0;
4631 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4632 and place that in the environment. */
4635 set_collect_gcc_options (void)
4640 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4642 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4643 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4646 for (i = 0; (int) i < n_switches; i++)
4648 const char *const *args;
4651 obstack_grow (&collect_obstack, " ", 1);
4655 /* Ignore elided switches. */
4656 if ((switches[i].live_cond & SWITCH_IGNORE) != 0)
4659 obstack_grow (&collect_obstack, "'-", 2);
4660 q = switches[i].part1;
4661 while ((p = strchr (q, '\'')))
4663 obstack_grow (&collect_obstack, q, p - q);
4664 obstack_grow (&collect_obstack, "'\\''", 4);
4667 obstack_grow (&collect_obstack, q, strlen (q));
4668 obstack_grow (&collect_obstack, "'", 1);
4670 for (args = switches[i].args; args && *args; args++)
4672 obstack_grow (&collect_obstack, " '", 2);
4674 while ((p = strchr (q, '\'')))
4676 obstack_grow (&collect_obstack, q, p - q);
4677 obstack_grow (&collect_obstack, "'\\''", 4);
4680 obstack_grow (&collect_obstack, q, strlen (q));
4681 obstack_grow (&collect_obstack, "'", 1);
4684 obstack_grow (&collect_obstack, "\0", 1);
4685 xputenv (XOBFINISH (&collect_obstack, char *));
4688 /* Process a spec string, accumulating and running commands. */
4690 /* These variables describe the input file name.
4691 input_file_number is the index on outfiles of this file,
4692 so that the output file name can be stored for later use by %o.
4693 input_basename is the start of the part of the input file
4694 sans all directory names, and basename_length is the number
4695 of characters starting there excluding the suffix .c or whatever. */
4697 static const char *input_filename;
4698 static int input_file_number;
4699 size_t input_filename_length;
4700 static int basename_length;
4701 static int suffixed_basename_length;
4702 static const char *input_basename;
4703 static const char *input_suffix;
4704 #ifndef HOST_LACKS_INODE_NUMBERS
4705 static struct stat input_stat;
4707 static int input_stat_set;
4709 /* The compiler used to process the current input file. */
4710 static struct compiler *input_file_compiler;
4712 /* These are variables used within do_spec and do_spec_1. */
4714 /* Nonzero if an arg has been started and not yet terminated
4715 (with space, tab or newline). */
4716 static int arg_going;
4718 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4719 is a temporary file name. */
4720 static int delete_this_arg;
4722 /* Nonzero means %w has been seen; the next arg to be terminated
4723 is the output file name of this compilation. */
4724 static int this_is_output_file;
4726 /* Nonzero means %s has been seen; the next arg to be terminated
4727 is the name of a library file and we should try the standard
4728 search dirs for it. */
4729 static int this_is_library_file;
4731 /* Nonzero means %T has been seen; the next arg to be terminated
4732 is the name of a linker script and we should try all of the
4733 standard search dirs for it. If it is found insert a --script
4734 command line switch and then substitute the full path in place,
4735 otherwise generate an error message. */
4736 static int this_is_linker_script;
4738 /* Nonzero means that the input of this command is coming from a pipe. */
4739 static int input_from_pipe;
4741 /* Nonnull means substitute this for any suffix when outputting a switches
4743 static const char *suffix_subst;
4745 /* If there is an argument being accumulated, terminate it and store it. */
4748 end_going_arg (void)
4754 obstack_1grow (&obstack, 0);
4755 string = XOBFINISH (&obstack, const char *);
4756 if (this_is_library_file)
4757 string = find_file (string);
4758 if (this_is_linker_script)
4760 char * full_script_path = find_a_file (&startfile_prefixes, string, R_OK, true);
4762 if (full_script_path == NULL)
4764 error (_("unable to locate default linker script '%s' in the library search paths"), string);
4765 /* Script was not found on search path. */
4768 store_arg ("--script", false, false);
4769 string = full_script_path;
4771 store_arg (string, delete_this_arg, this_is_output_file);
4772 if (this_is_output_file)
4773 outfiles[input_file_number] = string;
4779 /* Parse the WRAPPER string which is a comma separated list of the command line
4780 and insert them into the beginning of argbuf. */
4783 insert_wrapper (const char *wrapper)
4787 char *buf = xstrdup (wrapper);
4796 while ((p = strchr (p, ',')) != NULL);
4798 if (argbuf_index + n >= argbuf_length)
4800 argbuf_length = argbuf_length * 2;
4801 while (argbuf_length < argbuf_index + n)
4803 argbuf = XRESIZEVEC (const char *, argbuf, argbuf_length);
4805 for (i = argbuf_index - 1; i >= 0; i--)
4806 argbuf[i + n] = argbuf[i];
4819 while ((p = strchr (p, ',')) != NULL);
4820 gcc_assert (i == n);
4824 /* Process the spec SPEC and run the commands specified therein.
4825 Returns 0 if the spec is successfully processed; -1 if failed. */
4828 do_spec (const char *spec)
4832 value = do_spec_2 (spec);
4834 /* Force out any unfinished command.
4835 If -pipe, this forces out the last command if it ended in `|'. */
4838 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4841 set_collect_gcc_options ();
4843 if (argbuf_index > 0)
4851 do_spec_2 (const char *spec)
4857 delete_this_arg = 0;
4858 this_is_output_file = 0;
4859 this_is_library_file = 0;
4860 this_is_linker_script = 0;
4861 input_from_pipe = 0;
4862 suffix_subst = NULL;
4864 result = do_spec_1 (spec, 0, NULL);
4872 /* Process the given spec string and add any new options to the end
4873 of the switches/n_switches array. */
4876 do_option_spec (const char *name, const char *spec)
4878 unsigned int i, value_count, value_len;
4879 const char *p, *q, *value;
4880 char *tmp_spec, *tmp_spec_p;
4882 if (configure_default_options[0].name == NULL)
4885 for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
4886 if (strcmp (configure_default_options[i].name, name) == 0)
4888 if (i == ARRAY_SIZE (configure_default_options))
4891 value = configure_default_options[i].value;
4892 value_len = strlen (value);
4894 /* Compute the size of the final spec. */
4897 while ((p = strstr (p, "%(VALUE)")) != NULL)
4903 /* Replace each %(VALUE) by the specified value. */
4904 tmp_spec = (char *) alloca (strlen (spec) + 1
4905 + value_count * (value_len - strlen ("%(VALUE)")));
4906 tmp_spec_p = tmp_spec;
4908 while ((p = strstr (q, "%(VALUE)")) != NULL)
4910 memcpy (tmp_spec_p, q, p - q);
4911 tmp_spec_p = tmp_spec_p + (p - q);
4912 memcpy (tmp_spec_p, value, value_len);
4913 tmp_spec_p += value_len;
4914 q = p + strlen ("%(VALUE)");
4916 strcpy (tmp_spec_p, q);
4918 do_self_spec (tmp_spec);
4921 /* Process the given spec string and add any new options to the end
4922 of the switches/n_switches array. */
4925 do_self_spec (const char *spec)
4928 do_spec_1 (" ", 0, NULL);
4930 if (argbuf_index > 0)
4934 switches = XRESIZEVEC (struct switchstr, switches,
4935 n_switches + argbuf_index + 1);
4937 for (i = 0; i < argbuf_index; i++)
4939 struct switchstr *sw;
4940 const char *p = argbuf[i];
4943 /* Each switch should start with '-'. */
4945 fatal ("switch '%s' does not start with '-'", argbuf[i]);
4950 sw = &switches[n_switches++];
4956 /* Deal with option arguments in separate argv elements. */
4957 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4958 || WORD_SWITCH_TAKES_ARG (p))
4961 int n_args = WORD_SWITCH_TAKES_ARG (p);
4965 /* Count only the option arguments in separate argv elements. */
4966 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4968 if (i + n_args >= argbuf_index)
4969 fatal ("argument to '-%s' is missing", p);
4971 = XNEWVEC (const char *, n_args + 1);
4973 sw->args[j++] = argbuf[++i];
4974 /* Null-terminate the vector. */
4977 else if (strchr (switches_need_spaces, c))
4979 /* On some systems, ld cannot handle some options without
4980 a space. So split the option from its argument. */
4981 char *part1 = XNEWVEC (char, 2);
4986 sw->args = XNEWVEC (const char *, 2);
4987 sw->args[0] = xstrdup (p+1);
4994 switches[n_switches].part1 = 0;
4998 /* Callback for processing %D and %I specs. */
5000 struct spec_path_info {
5005 bool separate_options;
5009 spec_path (char *path, void *data)
5011 struct spec_path_info *info = (struct spec_path_info *) data;
5015 if (info->omit_relative && !IS_ABSOLUTE_PATH (path))
5018 if (info->append_len != 0)
5020 len = strlen (path);
5021 memcpy (path + len, info->append, info->append_len + 1);
5024 if (!is_directory (path, true))
5027 do_spec_1 (info->option, 1, NULL);
5028 if (info->separate_options)
5029 do_spec_1 (" ", 0, NULL);
5031 if (info->append_len == 0)
5033 len = strlen (path);
5034 save = path[len - 1];
5035 if (IS_DIR_SEPARATOR (path[len - 1]))
5036 path[len - 1] = '\0';
5039 do_spec_1 (path, 1, NULL);
5040 do_spec_1 (" ", 0, NULL);
5042 /* Must not damage the original path. */
5043 if (info->append_len == 0)
5044 path[len - 1] = save;
5049 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
5053 create_at_file (char **argv)
5055 char *temp_file = make_temp_file ("");
5056 char *at_argument = concat ("@", temp_file, NULL);
5057 FILE *f = fopen (temp_file, "w");
5061 fatal ("could not open temporary response file %s",
5064 status = writeargv (argv, f);
5067 fatal ("could not write to temporary response file %s",
5070 status = fclose (f);
5073 fatal ("could not close temporary response file %s",
5076 store_arg (at_argument, 0, 0);
5078 record_temp_file (temp_file, !save_temps_flag, !save_temps_flag);
5081 /* True if we should compile INFILE. */
5084 compile_input_file_p (struct infile *infile)
5086 if ((!infile->language) || (infile->language[0] != '*'))
5087 if (infile->incompiler == input_file_compiler)
5092 /* Process the sub-spec SPEC as a portion of a larger spec.
5093 This is like processing a whole spec except that we do
5094 not initialize at the beginning and we do not supply a
5095 newline by default at the end.
5096 INSWITCH nonzero means don't process %-sequences in SPEC;
5097 in this case, % is treated as an ordinary character.
5098 This is used while substituting switches.
5099 INSWITCH nonzero also causes SPC not to terminate an argument.
5101 Value is zero unless a line was finished
5102 and the command on that line reported an error. */
5105 do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
5107 const char *p = spec;
5113 /* If substituting a switch, treat all chars like letters.
5114 Otherwise, NL, SPC, TAB and % are special. */
5115 switch (inswitch ? 'a' : c)
5120 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
5122 /* A `|' before the newline means use a pipe here,
5123 but only if -pipe was specified.
5124 Otherwise, execute now and don't pass the `|' as an arg. */
5127 input_from_pipe = 1;
5134 set_collect_gcc_options ();
5136 if (argbuf_index > 0)
5142 /* Reinitialize for a new command, and for a new argument. */
5145 delete_this_arg = 0;
5146 this_is_output_file = 0;
5147 this_is_library_file = 0;
5148 this_is_linker_script = 0;
5149 input_from_pipe = 0;
5156 obstack_1grow (&obstack, c);
5164 /* Reinitialize for a new argument. */
5165 delete_this_arg = 0;
5166 this_is_output_file = 0;
5167 this_is_library_file = 0;
5168 this_is_linker_script = 0;
5175 fatal ("spec '%s' invalid", spec);
5178 if (save_temps_length)
5179 obstack_grow (&obstack, save_temps_prefix, save_temps_length);
5181 obstack_grow (&obstack, input_basename, basename_length);
5182 if (compare_debug < 0)
5183 obstack_grow (&obstack, ".gk", 3);
5188 if (save_temps_length)
5189 obstack_grow (&obstack, save_temps_prefix, save_temps_length);
5191 obstack_grow (&obstack, input_basename, suffixed_basename_length);
5192 if (compare_debug < 0)
5193 obstack_grow (&obstack, ".gk", 3);
5198 delete_this_arg = 2;
5201 /* Dump out the directories specified with LIBRARY_PATH,
5202 followed by the absolute directories
5203 that we search for startfiles. */
5206 struct spec_path_info info;
5209 info.append_len = 0;
5210 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5211 /* Used on systems which record the specified -L dirs
5212 and use them to search for dynamic linking.
5213 Relative directories always come from -B,
5214 and it is better not to use them for searching
5215 at run time. In particular, stage1 loses. */
5216 info.omit_relative = true;
5218 info.omit_relative = false;
5220 info.separate_options = false;
5222 for_each_path (&startfile_prefixes, true, 0, spec_path, &info);
5227 /* %efoo means report an error with `foo' as error message
5228 and don't execute any more commands for this file. */
5232 while (*p != 0 && *p != '\n')
5234 buf = (char *) alloca (p - q + 1);
5235 strncpy (buf, q, p - q);
5242 /* %nfoo means report a notice with `foo' on stderr. */
5246 while (*p != 0 && *p != '\n')
5248 buf = (char *) alloca (p - q + 1);
5249 strncpy (buf, q, p - q);
5251 notice ("%s\n", buf);
5261 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5262 defined, and it is not a directory, and it is
5263 writable, use it. Otherwise, treat this like any
5264 other temporary file. */
5266 if ((!save_temps_flag)
5267 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
5268 && (access (HOST_BIT_BUCKET, W_OK) == 0))
5270 obstack_grow (&obstack, HOST_BIT_BUCKET,
5271 strlen (HOST_BIT_BUCKET));
5272 delete_this_arg = 0;
5277 goto create_temp_file;
5281 obstack_1grow (&obstack, '-');
5282 delete_this_arg = 0;
5285 /* consume suffix */
5286 while (*p == '.' || ISALNUM ((unsigned char) *p))
5288 if (p[0] == '%' && p[1] == 'O')
5293 goto create_temp_file;
5297 /* consume suffix */
5298 while (*p == '.' || ISALNUM ((unsigned char) *p))
5300 if (p[0] == '%' && p[1] == 'O')
5305 goto create_temp_file;
5311 struct temp_name *t;
5313 const char *suffix = p;
5314 char *saved_suffix = NULL;
5316 while (*p == '.' || ISALNUM ((unsigned char) *p))
5318 suffix_length = p - suffix;
5319 if (p[0] == '%' && p[1] == 'O')
5322 /* We don't support extra suffix characters after %O. */
5323 if (*p == '.' || ISALNUM ((unsigned char) *p))
5324 fatal ("spec '%s' has invalid '%%0%c'", spec, *p);
5325 if (suffix_length == 0)
5326 suffix = TARGET_OBJECT_SUFFIX;
5330 = XNEWVEC (char, suffix_length
5331 + strlen (TARGET_OBJECT_SUFFIX));
5332 strncpy (saved_suffix, suffix, suffix_length);
5333 strcpy (saved_suffix + suffix_length,
5334 TARGET_OBJECT_SUFFIX);
5336 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
5339 if (compare_debug < 0)
5341 suffix = concat (".gk", suffix, NULL);
5345 /* If -save-temps=obj and -o were specified, use that for the
5347 if (save_temps_length)
5350 temp_filename_length
5351 = save_temps_length + suffix_length + 1;
5352 tmp = (char *) alloca (temp_filename_length);
5353 memcpy (tmp, save_temps_prefix, save_temps_length);
5354 memcpy (tmp + save_temps_length, suffix, suffix_length);
5355 tmp[save_temps_length + suffix_length] = '\0';
5356 temp_filename = save_string (tmp,
5357 temp_filename_length + 1);
5358 obstack_grow (&obstack, temp_filename,
5359 temp_filename_length);
5361 delete_this_arg = 0;
5365 /* If the input_filename has the same suffix specified
5366 for the %g, %u, or %U, and -save-temps is specified,
5367 we could end up using that file as an intermediate
5368 thus clobbering the user's source file (.e.g.,
5369 gcc -save-temps foo.s would clobber foo.s with the
5370 output of cpp0). So check for this condition and
5371 generate a temp file as the intermediate. */
5373 if (save_temps_flag)
5376 temp_filename_length = basename_length + suffix_length + 1;
5377 tmp = (char *) alloca (temp_filename_length);
5378 memcpy (tmp, input_basename, basename_length);
5379 memcpy (tmp + basename_length, suffix, suffix_length);
5380 tmp[basename_length + suffix_length] = '\0';
5381 temp_filename = tmp;
5383 if (strcmp (temp_filename, input_filename) != 0)
5385 #ifndef HOST_LACKS_INODE_NUMBERS
5386 struct stat st_temp;
5388 /* Note, set_input() resets input_stat_set to 0. */
5389 if (input_stat_set == 0)
5391 input_stat_set = stat (input_filename, &input_stat);
5392 if (input_stat_set >= 0)
5396 /* If we have the stat for the input_filename
5397 and we can do the stat for the temp_filename
5398 then the they could still refer to the same
5399 file if st_dev/st_ino's are the same. */
5400 if (input_stat_set != 1
5401 || stat (temp_filename, &st_temp) < 0
5402 || input_stat.st_dev != st_temp.st_dev
5403 || input_stat.st_ino != st_temp.st_ino)
5405 /* Just compare canonical pathnames. */
5406 char* input_realname = lrealpath (input_filename);
5407 char* temp_realname = lrealpath (temp_filename);
5408 bool files_differ = strcmp (input_realname, temp_realname);
5409 free (input_realname);
5410 free (temp_realname);
5414 temp_filename = save_string (temp_filename,
5415 temp_filename_length + 1);
5416 obstack_grow (&obstack, temp_filename,
5417 temp_filename_length);
5419 delete_this_arg = 0;
5425 /* See if we already have an association of %g/%u/%U and
5427 for (t = temp_names; t; t = t->next)
5428 if (t->length == suffix_length
5429 && strncmp (t->suffix, suffix, suffix_length) == 0
5430 && t->unique == (c == 'u' || c == 'U' || c == 'j'))
5433 /* Make a new association if needed. %u and %j
5435 if (t == 0 || c == 'u' || c == 'j')
5439 t = XNEW (struct temp_name);
5440 t->next = temp_names;
5443 t->length = suffix_length;
5446 t->suffix = saved_suffix;
5447 saved_suffix = NULL;
5450 t->suffix = save_string (suffix, suffix_length);
5451 t->unique = (c == 'u' || c == 'U' || c == 'j');
5452 temp_filename = make_temp_file (t->suffix);
5453 temp_filename_length = strlen (temp_filename);
5454 t->filename = temp_filename;
5455 t->filename_length = temp_filename_length;
5459 free (saved_suffix);
5461 obstack_grow (&obstack, t->filename, t->filename_length);
5462 delete_this_arg = 1;
5470 if (at_file_supplied)
5472 /* We are going to expand `%i' to `@FILE', where FILE
5473 is a newly-created temporary filename. The filenames
5474 that would usually be expanded in place of %o will be
5475 written to the temporary file. */
5480 for (i = 0; i < n_infiles; i++)
5481 if (compile_input_file_p (&infiles[i]))
5484 argv = (char **) alloca (sizeof (char *) * (n_files + 1));
5486 /* Copy the strings over. */
5487 for (i = 0, j = 0; i < n_infiles; i++)
5488 if (compile_input_file_p (&infiles[i]))
5490 argv[j] = CONST_CAST (char *, infiles[i].name);
5491 infiles[i].compiled = true;
5496 create_at_file (argv);
5499 for (i = 0; (int) i < n_infiles; i++)
5500 if (compile_input_file_p (&infiles[i]))
5502 store_arg (infiles[i].name, 0, 0);
5503 infiles[i].compiled = true;
5508 obstack_grow (&obstack, input_filename, input_filename_length);
5515 struct spec_path_info info;
5519 do_spec_1 ("-imultilib", 1, NULL);
5520 /* Make this a separate argument. */
5521 do_spec_1 (" ", 0, NULL);
5522 do_spec_1 (multilib_dir, 1, NULL);
5523 do_spec_1 (" ", 0, NULL);
5526 if (gcc_exec_prefix)
5528 do_spec_1 ("-iprefix", 1, NULL);
5529 /* Make this a separate argument. */
5530 do_spec_1 (" ", 0, NULL);
5531 do_spec_1 (gcc_exec_prefix, 1, NULL);
5532 do_spec_1 (" ", 0, NULL);
5535 if (target_system_root_changed ||
5536 (target_system_root && target_sysroot_hdrs_suffix))
5538 do_spec_1 ("-isysroot", 1, NULL);
5539 /* Make this a separate argument. */
5540 do_spec_1 (" ", 0, NULL);
5541 do_spec_1 (target_system_root, 1, NULL);
5542 if (target_sysroot_hdrs_suffix)
5543 do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
5544 do_spec_1 (" ", 0, NULL);
5547 info.option = "-isystem";
5548 info.append = "include";
5549 info.append_len = strlen (info.append);
5550 info.omit_relative = false;
5551 info.separate_options = true;
5553 for_each_path (&include_prefixes, false, info.append_len,
5556 info.append = "include-fixed";
5557 if (*sysroot_hdrs_suffix_spec)
5558 info.append = concat (info.append, dir_separator_str,
5559 multilib_dir, NULL);
5560 info.append_len = strlen (info.append);
5561 for_each_path (&include_prefixes, false, info.append_len,
5568 int max = n_infiles;
5569 max += lang_specific_extra_outfiles;
5571 if (HAVE_GNU_LD && at_file_supplied)
5573 /* We are going to expand `%o' to `@FILE', where FILE
5574 is a newly-created temporary filename. The filenames
5575 that would usually be expanded in place of %o will be
5576 written to the temporary file. */
5581 /* Convert OUTFILES into a form suitable for writeargv. */
5583 /* Determine how many are non-NULL. */
5584 for (n_files = 0, i = 0; i < max; i++)
5585 n_files += outfiles[i] != NULL;
5587 argv = (char **) alloca (sizeof (char *) * (n_files + 1));
5589 /* Copy the strings over. */
5590 for (i = 0, j = 0; i < max; i++)
5593 argv[j] = CONST_CAST (char *, outfiles[i]);
5598 create_at_file (argv);
5601 for (i = 0; i < max; i++)
5603 store_arg (outfiles[i], 0, 0);
5608 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
5613 this_is_library_file = 1;
5617 this_is_linker_script = 1;
5621 outfiles[input_file_number] = NULL;
5625 this_is_output_file = 1;
5630 int cur_index = argbuf_index;
5631 /* Handle the {...} following the %W. */
5633 fatal ("spec '%s' has invalid '%%W%c", spec, *p);
5634 p = handle_braces (p + 1);
5638 /* If any args were output, mark the last one for deletion
5640 if (argbuf_index != cur_index)
5641 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
5645 /* %x{OPTION} records OPTION for %X to output. */
5651 /* Skip past the option value and make a copy. */
5653 fatal ("spec '%s' has invalid '%%x%c'", spec, *p);
5656 string = save_string (p1 + 1, p - p1 - 2);
5658 /* See if we already recorded this option. */
5659 for (i = 0; i < n_linker_options; i++)
5660 if (! strcmp (string, linker_options[i]))
5666 /* This option is new; add it. */
5667 add_linker_option (string, strlen (string));
5671 /* Dump out the options accumulated previously using %x. */
5673 for (i = 0; i < n_linker_options; i++)
5675 do_spec_1 (linker_options[i], 1, NULL);
5676 /* Make each accumulated option a separate argument. */
5677 do_spec_1 (" ", 0, NULL);
5681 /* Dump out the options accumulated previously using -Wa,. */
5683 for (i = 0; i < n_assembler_options; i++)
5685 do_spec_1 (assembler_options[i], 1, NULL);
5686 /* Make each accumulated option a separate argument. */
5687 do_spec_1 (" ", 0, NULL);
5691 /* Dump out the options accumulated previously using -Wp,. */
5693 for (i = 0; i < n_preprocessor_options; i++)
5695 do_spec_1 (preprocessor_options[i], 1, NULL);
5696 /* Make each accumulated option a separate argument. */
5697 do_spec_1 (" ", 0, NULL);
5701 /* Here are digits and numbers that just process
5702 a certain constant string as a spec. */
5705 value = do_spec_1 (cc1_spec, 0, NULL);
5711 value = do_spec_1 (cc1plus_spec, 0, NULL);
5717 value = do_spec_1 (asm_spec, 0, NULL);
5723 value = do_spec_1 (asm_final_spec, 0, NULL);
5730 const char *const spec
5731 = (input_file_compiler->cpp_spec
5732 ? input_file_compiler->cpp_spec
5734 value = do_spec_1 (spec, 0, NULL);
5741 value = do_spec_1 (endfile_spec, 0, NULL);
5747 value = do_spec_1 (link_spec, 0, NULL);
5753 value = do_spec_1 (lib_spec, 0, NULL);
5759 value = do_spec_1 (libgcc_spec, 0, NULL);
5765 /* We assume there is a directory
5766 separator at the end of this string. */
5767 if (target_system_root)
5769 obstack_grow (&obstack, target_system_root,
5770 strlen (target_system_root));
5771 if (target_sysroot_suffix)
5772 obstack_grow (&obstack, target_sysroot_suffix,
5773 strlen (target_sysroot_suffix));
5778 value = do_spec_1 (startfile_spec, 0, NULL);
5783 /* Here we define characters other than letters and digits. */
5786 p = handle_braces (p);
5792 p = handle_spec_function (p);
5798 obstack_1grow (&obstack, '%');
5805 while (p[len] && p[len] != ' ' && p[len] != '%')
5807 suffix_subst = save_string (p - 1, len + 1);
5812 /* Henceforth ignore the option(s) matching the pattern
5817 int have_wildcard = 0;
5820 while (p[len] && p[len] != ' ' && p[len] != '\t')
5823 if (p[len-1] == '*')
5826 for (i = 0; i < n_switches; i++)
5827 if (!strncmp (switches[i].part1, p, len - have_wildcard)
5828 && (have_wildcard || switches[i].part1[len] == '\0'))
5830 switches[i].live_cond |= SWITCH_IGNORE;
5831 switches[i].validated = 1;
5839 if (soft_matched_part)
5841 do_spec_1 (soft_matched_part, 1, NULL);
5842 do_spec_1 (" ", 0, NULL);
5845 /* Catch the case where a spec string contains something like
5846 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5847 hand side of the :. */
5848 error ("spec failure: '%%*' has not been initialized by pattern match");
5851 /* Process a string found as the value of a spec given by name.
5852 This feature allows individual machine descriptions
5853 to add and use their own specs.
5854 %[...] modifies -D options the way %P does;
5855 %(...) uses the spec unmodified. */
5857 error ("warning: use of obsolete %%[ operator in specs");
5860 const char *name = p;
5861 struct spec_list *sl;
5864 /* The string after the S/P is the name of a spec that is to be
5866 while (*p && *p != ')' && *p != ']')
5869 /* See if it's in the list. */
5870 for (len = p - name, sl = specs; sl; sl = sl->next)
5871 if (sl->name_len == len && !strncmp (sl->name, name, len))
5873 name = *(sl->ptr_spec);
5875 notice ("Processing spec %c%s%c, which is '%s'\n",
5876 c, sl->name, (c == '(') ? ')' : ']', name);
5885 value = do_spec_1 (name, 0, NULL);
5891 char *x = (char *) alloca (strlen (name) * 2 + 1);
5893 const char *y = name;
5896 /* Copy all of NAME into BUF, but put __ after
5897 every -D and at the end of each arg. */
5900 if (! strncmp (y, "-D", 2))
5911 && (*y == ' ' || *y == '\t' || *y == '='
5912 || *y == '}' || *y == 0))
5925 value = do_spec_1 (buf, 0, NULL);
5931 /* Discard the closing paren or bracket. */
5938 error ("spec failure: unrecognized spec option '%c'", c);
5944 /* Backslash: treat next character as ordinary. */
5949 /* Ordinary character: put it into the current argument. */
5950 obstack_1grow (&obstack, c);
5954 /* End of string. If we are processing a spec function, we need to
5955 end any pending argument. */
5956 if (processing_spec_function)
5962 /* Look up a spec function. */
5964 static const struct spec_function *
5965 lookup_spec_function (const char *name)
5967 const struct spec_function *sf;
5969 for (sf = static_spec_functions; sf->name != NULL; sf++)
5970 if (strcmp (sf->name, name) == 0)
5976 /* Evaluate a spec function. */
5979 eval_spec_function (const char *func, const char *args)
5981 const struct spec_function *sf;
5982 const char *funcval;
5984 /* Saved spec processing context. */
5985 int save_argbuf_index;
5986 int save_argbuf_length;
5987 const char **save_argbuf;
5990 int save_delete_this_arg;
5991 int save_this_is_output_file;
5992 int save_this_is_library_file;
5993 int save_input_from_pipe;
5994 int save_this_is_linker_script;
5995 const char *save_suffix_subst;
5998 sf = lookup_spec_function (func);
6000 fatal ("unknown spec function '%s'", func);
6002 /* Push the spec processing context. */
6003 save_argbuf_index = argbuf_index;
6004 save_argbuf_length = argbuf_length;
6005 save_argbuf = argbuf;
6007 save_arg_going = arg_going;
6008 save_delete_this_arg = delete_this_arg;
6009 save_this_is_output_file = this_is_output_file;
6010 save_this_is_library_file = this_is_library_file;
6011 save_this_is_linker_script = this_is_linker_script;
6012 save_input_from_pipe = input_from_pipe;
6013 save_suffix_subst = suffix_subst;
6015 /* Create a new spec processing context, and build the function
6019 if (do_spec_2 (args) < 0)
6020 fatal ("error in args to spec function '%s'", func);
6022 /* argbuf_index is an index for the next argument to be inserted, and
6023 so contains the count of the args already inserted. */
6025 funcval = (*sf->func) (argbuf_index, argbuf);
6027 /* Pop the spec processing context. */
6028 argbuf_index = save_argbuf_index;
6029 argbuf_length = save_argbuf_length;
6031 argbuf = save_argbuf;
6033 arg_going = save_arg_going;
6034 delete_this_arg = save_delete_this_arg;
6035 this_is_output_file = save_this_is_output_file;
6036 this_is_library_file = save_this_is_library_file;
6037 this_is_linker_script = save_this_is_linker_script;
6038 input_from_pipe = save_input_from_pipe;
6039 suffix_subst = save_suffix_subst;
6044 /* Handle a spec function call of the form:
6048 ARGS is processed as a spec in a separate context and split into an
6049 argument vector in the normal fashion. The function returns a string
6050 containing a spec which we then process in the caller's context, or
6051 NULL if no processing is required. */
6054 handle_spec_function (const char *p)
6057 const char *endp, *funcval;
6060 processing_spec_function++;
6062 /* Get the function name. */
6063 for (endp = p; *endp != '\0'; endp++)
6065 if (*endp == '(') /* ) */
6067 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6068 if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
6069 fatal ("malformed spec function name");
6071 if (*endp != '(') /* ) */
6072 fatal ("no arguments for spec function");
6073 func = save_string (p, endp - p);
6076 /* Get the arguments. */
6077 for (count = 0; *endp != '\0'; endp++)
6086 else if (*endp == '(') /* ) */
6091 fatal ("malformed spec function arguments");
6092 args = save_string (p, endp - p);
6095 /* p now points to just past the end of the spec function expression. */
6097 funcval = eval_spec_function (func, args);
6098 if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
6104 processing_spec_function--;
6109 /* Inline subroutine of handle_braces. Returns true if the current
6110 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6112 input_suffix_matches (const char *atom, const char *end_atom)
6114 return (input_suffix
6115 && !strncmp (input_suffix, atom, end_atom - atom)
6116 && input_suffix[end_atom - atom] == '\0');
6119 /* Subroutine of handle_braces. Returns true if the current
6120 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6122 input_spec_matches (const char *atom, const char *end_atom)
6124 return (input_file_compiler
6125 && input_file_compiler->suffix
6126 && input_file_compiler->suffix[0] != '\0'
6127 && !strncmp (input_file_compiler->suffix + 1, atom,
6129 && input_file_compiler->suffix[end_atom - atom + 1] == '\0');
6132 /* Subroutine of handle_braces. Returns true if a switch
6133 matching the atom bracketed by ATOM and END_ATOM appeared on the
6136 switch_matches (const char *atom, const char *end_atom, int starred)
6139 int len = end_atom - atom;
6140 int plen = starred ? len : -1;
6142 for (i = 0; i < n_switches; i++)
6143 if (!strncmp (switches[i].part1, atom, len)
6144 && (starred || switches[i].part1[len] == '\0')
6145 && check_live_switch (i, plen))
6151 /* Inline subroutine of handle_braces. Mark all of the switches which
6152 match ATOM (extends to END_ATOM; STARRED indicates whether there
6153 was a star after the atom) for later processing. */
6155 mark_matching_switches (const char *atom, const char *end_atom, int starred)
6158 int len = end_atom - atom;
6159 int plen = starred ? len : -1;
6161 for (i = 0; i < n_switches; i++)
6162 if (!strncmp (switches[i].part1, atom, len)
6163 && (starred || switches[i].part1[len] == '\0')
6164 && check_live_switch (i, plen))
6165 switches[i].ordering = 1;
6168 /* Inline subroutine of handle_braces. Process all the currently
6169 marked switches through give_switch, and clear the marks. */
6171 process_marked_switches (void)
6175 for (i = 0; i < n_switches; i++)
6176 if (switches[i].ordering == 1)
6178 switches[i].ordering = 0;
6183 /* Handle a %{ ... } construct. P points just inside the leading {.
6184 Returns a pointer one past the end of the brace block, or 0
6185 if we call do_spec_1 and that returns -1. */
6188 handle_braces (const char *p)
6190 const char *atom, *end_atom;
6191 const char *d_atom = NULL, *d_end_atom = NULL;
6192 const char *orig = p;
6200 bool a_must_be_last = false;
6201 bool ordered_set = false;
6202 bool disjunct_set = false;
6203 bool disj_matched = false;
6204 bool disj_starred = true;
6205 bool n_way_choice = false;
6206 bool n_way_matched = false;
6208 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6215 /* Scan one "atom" (S in the description above of %{}, possibly
6216 with '!', '.', '@', ',', or '*' modifiers). */
6218 a_is_suffix = false;
6219 a_is_starred = false;
6220 a_is_negated = false;
6221 a_is_spectype = false;
6225 p++, a_is_negated = true;
6229 p++, a_is_suffix = true;
6231 p++, a_is_spectype = true;
6234 while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '='
6235 || *p == ',' || *p == '.' || *p == '@')
6240 p++, a_is_starred = 1;
6246 /* Substitute the switch(es) indicated by the current atom. */
6248 if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
6249 || a_is_spectype || atom == end_atom)
6252 mark_matching_switches (atom, end_atom, a_is_starred);
6255 process_marked_switches ();
6259 /* Substitute some text if the current atom appears as a switch
6261 disjunct_set = true;
6265 if (atom == end_atom)
6267 if (!n_way_choice || disj_matched || *p == '|'
6268 || a_is_negated || a_is_suffix || a_is_spectype
6272 /* An empty term may appear as the last choice of an
6273 N-way choice set; it means "otherwise". */
6274 a_must_be_last = true;
6275 disj_matched = !n_way_matched;
6276 disj_starred = false;
6280 if ((a_is_suffix || a_is_spectype) && a_is_starred)
6284 disj_starred = false;
6286 /* Don't bother testing this atom if we already have a
6288 if (!disj_matched && !n_way_matched)
6291 a_matched = input_suffix_matches (atom, end_atom);
6292 else if (a_is_spectype)
6293 a_matched = input_spec_matches (atom, end_atom);
6295 a_matched = switch_matches (atom, end_atom, a_is_starred);
6297 if (a_matched != a_is_negated)
6299 disj_matched = true;
6301 d_end_atom = end_atom;
6308 /* Found the body, that is, the text to substitute if the
6309 current disjunction matches. */
6310 p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
6311 disj_matched && !n_way_matched);
6315 /* If we have an N-way choice, reset state for the next
6319 n_way_choice = true;
6320 n_way_matched |= disj_matched;
6321 disj_matched = false;
6322 disj_starred = true;
6323 d_atom = d_end_atom = NULL;
6332 while (*p++ != '}');
6337 fatal ("braced spec '%s' is invalid at '%c'", orig, *p);
6342 /* Subroutine of handle_braces. Scan and process a brace substitution body
6343 (X in the description of %{} syntax). P points one past the colon;
6344 ATOM and END_ATOM bracket the first atom which was found to be true
6345 (present) in the current disjunction; STARRED indicates whether all
6346 the atoms in the current disjunction were starred (for syntax validation);
6347 MATCHED indicates whether the disjunction matched or not, and therefore
6348 whether or not the body is to be processed through do_spec_1 or just
6349 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6353 process_brace_body (const char *p, const char *atom, const char *end_atom,
6354 int starred, int matched)
6356 const char *body, *end_body;
6357 unsigned int nesting_level;
6358 bool have_subst = false;
6360 /* Locate the closing } or ;, honoring nested braces.
6361 Trim trailing whitespace. */
6370 if (!--nesting_level)
6373 else if (*p == ';' && nesting_level == 1)
6375 else if (*p == '%' && p[1] == '*' && nesting_level == 1)
6377 else if (*p == '\0')
6383 while (end_body[-1] == ' ' || end_body[-1] == '\t')
6386 if (have_subst && !starred)
6391 /* Copy the substitution body to permanent storage and execute it.
6392 If have_subst is false, this is a simple matter of running the
6393 body through do_spec_1... */
6394 char *string = save_string (body, end_body - body);
6397 if (do_spec_1 (string, 0, NULL) < 0)
6402 /* ... but if have_subst is true, we have to process the
6403 body once for each matching switch, with %* set to the
6404 variant part of the switch. */
6405 unsigned int hard_match_len = end_atom - atom;
6408 for (i = 0; i < n_switches; i++)
6409 if (!strncmp (switches[i].part1, atom, hard_match_len)
6410 && check_live_switch (i, hard_match_len))
6412 if (do_spec_1 (string, 0,
6413 &switches[i].part1[hard_match_len]) < 0)
6415 /* Pass any arguments this switch has. */
6417 suffix_subst = NULL;
6425 fatal ("braced spec body '%s' is invalid", body);
6428 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6429 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6430 spec, or -1 if either exact match or %* is used.
6432 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
6433 whose value does not begin with "no-" is obsoleted by the same value
6434 with the "no-", similarly for a switch with the "no-" prefix. */
6437 check_live_switch (int switchnum, int prefix_length)
6439 const char *name = switches[switchnum].part1;
6442 /* If we already processed this switch and determined if it was
6443 live or not, return our past determination. */
6444 if (switches[switchnum].live_cond != 0)
6445 return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0
6446 && (switches[switchnum].live_cond & SWITCH_FALSE) == 0
6447 && (switches[switchnum].live_cond & SWITCH_IGNORE) == 0);
6449 /* In the common case of {<at-most-one-letter>*}, a negating
6450 switch would always match, so ignore that case. We will just
6451 send the conflicting switches to the compiler phase. */
6452 if (prefix_length >= 0 && prefix_length <= 1)
6455 /* Now search for duplicate in a manner that depends on the name. */
6459 for (i = switchnum + 1; i < n_switches; i++)
6460 if (switches[i].part1[0] == 'O')
6462 switches[switchnum].validated = 1;
6463 switches[switchnum].live_cond = SWITCH_FALSE;
6468 case 'W': case 'f': case 'm':
6469 if (! strncmp (name + 1, "no-", 3))
6471 /* We have Xno-YYY, search for XYYY. */
6472 for (i = switchnum + 1; i < n_switches; i++)
6473 if (switches[i].part1[0] == name[0]
6474 && ! strcmp (&switches[i].part1[1], &name[4]))
6476 switches[switchnum].validated = 1;
6477 switches[switchnum].live_cond = SWITCH_FALSE;
6483 /* We have XYYY, search for Xno-YYY. */
6484 for (i = switchnum + 1; i < n_switches; i++)
6485 if (switches[i].part1[0] == name[0]
6486 && switches[i].part1[1] == 'n'
6487 && switches[i].part1[2] == 'o'
6488 && switches[i].part1[3] == '-'
6489 && !strcmp (&switches[i].part1[4], &name[1]))
6491 switches[switchnum].validated = 1;
6492 switches[switchnum].live_cond = SWITCH_FALSE;
6499 /* Otherwise the switch is live. */
6500 switches[switchnum].live_cond |= SWITCH_LIVE;
6504 /* Pass a switch to the current accumulating command
6505 in the same form that we received it.
6506 SWITCHNUM identifies the switch; it is an index into
6507 the vector of switches gcc received, which is `switches'.
6508 This cannot fail since it never finishes a command line.
6510 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6513 give_switch (int switchnum, int omit_first_word)
6515 if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0)
6518 if (!omit_first_word)
6520 do_spec_1 ("-", 0, NULL);
6521 do_spec_1 (switches[switchnum].part1, 1, NULL);
6524 if (switches[switchnum].args != 0)
6527 for (p = switches[switchnum].args; *p; p++)
6529 const char *arg = *p;
6531 do_spec_1 (" ", 0, NULL);
6534 unsigned length = strlen (arg);
6537 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
6538 if (arg[length] == '.')
6540 (CONST_CAST(char *, arg))[length] = 0;
6544 do_spec_1 (arg, 1, NULL);
6546 (CONST_CAST(char *, arg))[length] = '.';
6547 do_spec_1 (suffix_subst, 1, NULL);
6550 do_spec_1 (arg, 1, NULL);
6554 do_spec_1 (" ", 0, NULL);
6555 switches[switchnum].validated = 1;
6558 /* Search for a file named NAME trying various prefixes including the
6559 user's -B prefix and some standard ones.
6560 Return the absolute file name found. If nothing is found, return NAME. */
6563 find_file (const char *name)
6565 char *newname = find_a_file (&startfile_prefixes, name, R_OK, true);
6566 return newname ? newname : name;
6569 /* Determine whether a directory exists. If LINKER, return 0 for
6570 certain fixed names not needed by the linker. */
6573 is_directory (const char *path1, bool linker)
6580 /* Ensure the string ends with "/.". The resulting path will be a
6581 directory even if the given path is a symbolic link. */
6582 len1 = strlen (path1);
6583 path = (char *) alloca (3 + len1);
6584 memcpy (path, path1, len1);
6586 if (!IS_DIR_SEPARATOR (cp[-1]))
6587 *cp++ = DIR_SEPARATOR;
6591 /* Exclude directories that the linker is known to search. */
6593 && IS_DIR_SEPARATOR (path[0])
6595 && strncmp (path + 1, "lib", 3) == 0)
6597 && strncmp (path + 1, "usr", 3) == 0
6598 && IS_DIR_SEPARATOR (path[4])
6599 && strncmp (path + 5, "lib", 3) == 0)))
6602 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
6605 /* Set up the various global variables to indicate that we're processing
6606 the input file named FILENAME. */
6609 set_input (const char *filename)
6613 input_filename = filename;
6614 input_filename_length = strlen (input_filename);
6615 input_basename = lbasename (input_filename);
6617 /* Find a suffix starting with the last period,
6618 and set basename_length to exclude that suffix. */
6619 basename_length = strlen (input_basename);
6620 suffixed_basename_length = basename_length;
6621 p = input_basename + basename_length;
6622 while (p != input_basename && *p != '.')
6624 if (*p == '.' && p != input_basename)
6626 basename_length = p - input_basename;
6627 input_suffix = p + 1;
6632 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6633 we will need to do a stat on the input_filename. The
6634 INPUT_STAT_SET signals that the stat is needed. */
6638 /* On fatal signals, delete all the temporary files. */
6641 fatal_error (int signum)
6643 signal (signum, SIG_DFL);
6644 delete_failure_queue ();
6645 delete_temp_files ();
6646 /* Get the same signal again, this time not handled,
6647 so its normal effect occurs. */
6648 kill (getpid (), signum);
6651 /* Compare the contents of the two files named CMPFILE[0] and
6652 CMPFILE[1]. Return zero if they're identical, nonzero
6656 compare_files (char *cmpfile[])
6659 FILE *temp[2] = { NULL, NULL };
6665 void *map[2] = { NULL, NULL };
6667 for (i = 0; i < 2; i++)
6671 if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode))
6673 error ("%s: could not determine length of compare-debug file %s",
6674 input_filename, cmpfile[i]);
6679 length[i] = st.st_size;
6682 if (!ret && length[0] != length[1])
6684 error ("%s: -fcompare-debug failure (length)", input_filename);
6689 for (i = 0; i < 2; i++)
6691 int fd = open (cmpfile[i], O_RDONLY);
6694 error ("%s: could not open compare-debug file %s",
6695 input_filename, cmpfile[i]);
6700 map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0);
6703 if (map[i] == (void *) MAP_FAILED)
6712 if (memcmp (map[0], map[1], length[0]) != 0)
6714 error ("%s: -fcompare-debug failure", input_filename);
6719 for (i = 0; i < 2; i++)
6721 munmap ((caddr_t) map[i], length[i]);
6730 for (i = 0; i < 2; i++)
6732 temp[i] = fopen (cmpfile[i], "r");
6735 error ("%s: could not open compare-debug file %s",
6736 input_filename, cmpfile[i]);
6742 if (!ret && temp[0] && temp[1])
6746 c0 = fgetc (temp[0]);
6747 c1 = fgetc (temp[1]);
6751 error ("%s: -fcompare-debug failure",
6761 for (i = 1; i >= 0; i--)
6770 extern int main (int, char **);
6773 main (int argc, char **argv)
6777 int linker_was_run = 0;
6778 int lang_n_infiles = 0;
6779 int num_linker_inputs = 0;
6780 char *explicit_link_files;
6783 struct user_specs *uptr;
6784 char **old_argv = argv;
6786 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6787 on ?: in file-scope variable initializations. */
6788 asm_debug = ASM_DEBUG_SPEC;
6790 p = argv[0] + strlen (argv[0]);
6791 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
6795 xmalloc_set_program_name (programname);
6797 expandargv (&argc, &argv);
6799 /* Determine if any expansions were made. */
6800 if (argv != old_argv)
6801 at_file_supplied = true;
6803 prune_options (&argc, &argv);
6805 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6806 /* Perform host dependent initialization when needed. */
6807 GCC_DRIVER_HOST_INITIALIZATION;
6810 /* Unlock the stdio streams. */
6811 unlock_std_streams ();
6813 gcc_init_libintl ();
6815 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
6816 signal (SIGINT, fatal_error);
6818 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
6819 signal (SIGHUP, fatal_error);
6821 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
6822 signal (SIGTERM, fatal_error);
6824 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
6825 signal (SIGPIPE, fatal_error);
6828 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6829 receive the signal. A different setting is inheritable */
6830 signal (SIGCHLD, SIG_DFL);
6833 /* Allocate the argument vector. */
6836 obstack_init (&obstack);
6838 /* Build multilib_select, et. al from the separate lines that make up each
6839 multilib selection. */
6841 const char *const *q = multilib_raw;
6844 obstack_init (&multilib_obstack);
6845 while ((p = *q++) != (char *) 0)
6846 obstack_grow (&multilib_obstack, p, strlen (p));
6848 obstack_1grow (&multilib_obstack, 0);
6849 multilib_select = XOBFINISH (&multilib_obstack, const char *);
6851 q = multilib_matches_raw;
6852 while ((p = *q++) != (char *) 0)
6853 obstack_grow (&multilib_obstack, p, strlen (p));
6855 obstack_1grow (&multilib_obstack, 0);
6856 multilib_matches = XOBFINISH (&multilib_obstack, const char *);
6858 q = multilib_exclusions_raw;
6859 while ((p = *q++) != (char *) 0)
6860 obstack_grow (&multilib_obstack, p, strlen (p));
6862 obstack_1grow (&multilib_obstack, 0);
6863 multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
6866 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
6869 obstack_1grow (&multilib_obstack, ' ');
6870 obstack_grow (&multilib_obstack,
6871 multilib_defaults_raw[i],
6872 strlen (multilib_defaults_raw[i]));
6876 obstack_1grow (&multilib_obstack, 0);
6877 multilib_defaults = XOBFINISH (&multilib_obstack, const char *);
6880 #ifdef INIT_ENVIRONMENT
6881 /* Set up any other necessary machine specific environment variables. */
6882 xputenv (INIT_ENVIRONMENT);
6885 /* Make a table of what switches there are (switches, n_switches).
6886 Make a table of specified input files (infiles, n_infiles).
6887 Decode switches that are handled locally. */
6889 process_command (argc, CONST_CAST2 (const char **, char **, argv));
6891 /* Initialize the vector of specs to just the default.
6892 This means one element containing 0s, as a terminator. */
6894 compilers = XNEWVAR (struct compiler, sizeof default_compilers);
6895 memcpy (compilers, default_compilers, sizeof default_compilers);
6896 n_compilers = n_default_compilers;
6898 /* Read specs from a file if there is one. */
6900 machine_suffix = concat (spec_machine, dir_separator_str,
6901 spec_version, dir_separator_str, NULL);
6902 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
6904 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true);
6905 /* Read the specs file unless it is a default one. */
6906 if (specs_file != 0 && strcmp (specs_file, "specs"))
6907 read_specs (specs_file, TRUE);
6911 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6912 for any override of as, ld and libraries. */
6913 specs_file = (char *) alloca (strlen (standard_exec_prefix)
6914 + strlen (just_machine_suffix) + sizeof ("specs"));
6916 strcpy (specs_file, standard_exec_prefix);
6917 strcat (specs_file, just_machine_suffix);
6918 strcat (specs_file, "specs");
6919 if (access (specs_file, R_OK) == 0)
6920 read_specs (specs_file, TRUE);
6922 /* Process any configure-time defaults specified for the command line
6923 options, via OPTION_DEFAULT_SPECS. */
6924 for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
6925 do_option_spec (option_default_specs[i].name,
6926 option_default_specs[i].spec);
6928 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6929 of the command line. */
6931 for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
6932 do_self_spec (driver_self_specs[i]);
6936 enum save_temps save;
6938 if (!compare_debug_second)
6940 n_switches_debug_check[1] = n_switches;
6941 switches_debug_check[1] = XDUPVEC (struct switchstr, switches,
6944 do_self_spec ("%:compare-debug-self-opt()");
6945 n_switches_debug_check[0] = n_switches;
6946 switches_debug_check[0] = switches;
6948 n_switches = n_switches_debug_check[1];
6949 switches = switches_debug_check[1];
6952 /* Avoid crash when computing %j in this early. */
6953 save = save_temps_flag;
6954 save_temps_flag = SAVE_TEMPS_NONE;
6956 compare_debug = -compare_debug;
6957 do_self_spec ("%:compare-debug-self-opt()");
6959 save_temps_flag = save;
6961 if (!compare_debug_second)
6963 n_switches_debug_check[1] = n_switches;
6964 switches_debug_check[1] = switches;
6965 compare_debug = -compare_debug;
6966 n_switches = n_switches_debug_check[0];
6967 switches = switches_debug_check[0];
6971 /* If not cross-compiling, look for executables in the standard
6973 if (*cross_compile == '0')
6975 if (*md_exec_prefix)
6977 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
6978 PREFIX_PRIORITY_LAST, 0, 0);
6982 /* Process sysroot_suffix_spec. */
6983 if (*sysroot_suffix_spec != 0
6984 && do_spec_2 (sysroot_suffix_spec) == 0)
6986 if (argbuf_index > 1)
6987 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6988 else if (argbuf_index == 1)
6989 target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
6992 #ifdef HAVE_LD_SYSROOT
6993 /* Pass the --sysroot option to the linker, if it supports that. If
6994 there is a sysroot_suffix_spec, it has already been processed by
6995 this point, so target_system_root really is the system root we
6997 if (target_system_root)
6999 obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7000 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
7001 set_spec ("link", XOBFINISH (&obstack, const char *));
7005 /* Process sysroot_hdrs_suffix_spec. */
7006 if (*sysroot_hdrs_suffix_spec != 0
7007 && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
7009 if (argbuf_index > 1)
7010 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7011 else if (argbuf_index == 1)
7012 target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
7015 /* Look for startfiles in the standard places. */
7016 if (*startfile_prefix_spec != 0
7017 && do_spec_2 (startfile_prefix_spec) == 0
7018 && do_spec_1 (" ", 0, NULL) == 0)
7021 for (ndx = 0; ndx < argbuf_index; ndx++)
7022 add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS",
7023 PREFIX_PRIORITY_LAST, 0, 1);
7025 /* We should eventually get rid of all these and stick to
7026 startfile_prefix_spec exclusively. */
7027 else if (*cross_compile == '0' || target_system_root)
7029 if (*md_startfile_prefix)
7030 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
7031 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
7033 if (*md_startfile_prefix_1)
7034 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
7035 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
7037 /* If standard_startfile_prefix is relative, base it on
7038 standard_exec_prefix. This lets us move the installed tree
7039 as a unit. If GCC_EXEC_PREFIX is defined, base
7040 standard_startfile_prefix on that as well.
7042 If the prefix is relative, only search it for native compilers;
7043 otherwise we will search a directory containing host libraries. */
7044 if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
7045 add_sysrooted_prefix (&startfile_prefixes,
7046 standard_startfile_prefix, "BINUTILS",
7047 PREFIX_PRIORITY_LAST, 0, 1);
7048 else if (*cross_compile == '0')
7050 add_prefix (&startfile_prefixes,
7051 concat (gcc_exec_prefix
7052 ? gcc_exec_prefix : standard_exec_prefix,
7054 standard_startfile_prefix, NULL),
7055 NULL, PREFIX_PRIORITY_LAST, 0, 1);
7058 /* Sysrooted prefixes are relocated because target_system_root is
7059 also relocated by gcc_exec_prefix. */
7060 if (*standard_startfile_prefix_1)
7061 add_sysrooted_prefix (&startfile_prefixes,
7062 standard_startfile_prefix_1, "BINUTILS",
7063 PREFIX_PRIORITY_LAST, 0, 1);
7064 if (*standard_startfile_prefix_2)
7065 add_sysrooted_prefix (&startfile_prefixes,
7066 standard_startfile_prefix_2, "BINUTILS",
7067 PREFIX_PRIORITY_LAST, 0, 1);
7070 /* Process any user specified specs in the order given on the command
7072 for (uptr = user_specs_head; uptr; uptr = uptr->next)
7074 char *filename = find_a_file (&startfile_prefixes, uptr->filename,
7076 read_specs (filename ? filename : uptr->filename, FALSE);
7079 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7080 if (gcc_exec_prefix)
7081 gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
7082 spec_version, dir_separator_str, NULL);
7084 /* Now we have the specs.
7085 Set the `valid' bits for switches that match anything in any spec. */
7087 validate_all_switches ();
7089 /* Now that we have the switches and the specs, set
7090 the subdirectory based on the options. */
7091 set_multilib_dir ();
7093 /* Set up to remember the pathname of gcc and any options
7094 needed for collect. We use argv[0] instead of programname because
7095 we need the complete pathname. */
7096 obstack_init (&collect_obstack);
7097 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7098 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
7099 xputenv (XOBFINISH (&collect_obstack, char *));
7101 /* Set up to remember the pathname of the lto wrapper. */
7103 lto_wrapper_spec = find_a_file (&exec_prefixes, "lto-wrapper", X_OK, false);
7104 if (lto_wrapper_spec)
7106 obstack_init (&collect_obstack);
7107 obstack_grow (&collect_obstack, "COLLECT_LTO_WRAPPER=",
7108 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7109 obstack_grow (&collect_obstack, lto_wrapper_spec,
7110 strlen (lto_wrapper_spec) + 1);
7111 xputenv (XOBFINISH (&collect_obstack, char *));
7114 /* Warn about any switches that no pass was interested in. */
7116 for (i = 0; (int) i < n_switches; i++)
7117 if (! switches[i].validated)
7118 error ("unrecognized option '-%s'", switches[i].part1);
7120 /* Obey some of the options. */
7122 if (print_search_dirs)
7124 printf (_("install: %s%s\n"),
7125 gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
7126 gcc_exec_prefix ? "" : machine_suffix);
7127 printf (_("programs: %s\n"),
7128 build_search_list (&exec_prefixes, "", false, false));
7129 printf (_("libraries: %s\n"),
7130 build_search_list (&startfile_prefixes, "", false, true));
7134 if (print_file_name)
7136 printf ("%s\n", find_file (print_file_name));
7140 if (print_prog_name)
7142 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0);
7143 printf ("%s\n", (newname ? newname : print_prog_name));
7147 if (print_multi_lib)
7149 print_multilib_info ();
7153 if (print_multi_directory)
7155 if (multilib_dir == NULL)
7158 printf ("%s\n", multilib_dir);
7164 if (target_system_root)
7166 if (target_sysroot_suffix)
7167 printf ("%s%s\n", target_system_root, target_sysroot_suffix);
7169 printf ("%s\n", target_system_root);
7174 if (print_multi_os_directory)
7176 if (multilib_os_dir == NULL)
7179 printf ("%s\n", multilib_os_dir);
7183 if (print_sysroot_headers_suffix)
7185 if (*sysroot_hdrs_suffix_spec)
7187 printf("%s\n", (target_sysroot_hdrs_suffix
7188 ? target_sysroot_hdrs_suffix
7193 /* The error status indicates that only one set of fixed
7194 headers should be built. */
7195 fatal ("not configured with sysroot headers suffix");
7198 if (print_help_list)
7204 printf (_("\nFor bug reporting instructions, please see:\n"));
7205 printf ("%s.\n", bug_report_url);
7210 /* We do not exit here. Instead we have created a fake input file
7211 called 'help-dummy' which needs to be compiled, and we pass this
7212 on the various sub-processes, along with the --help switch.
7213 Ensure their output appears after ours. */
7214 fputc ('\n', stdout);
7220 printf (_("%s %s%s\n"), programname, pkgversion_string,
7222 printf ("Copyright %s 2009 Free Software Foundation, Inc.\n",
7224 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7225 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7230 /* We do not exit here. We use the same mechanism of --help to print
7231 the version of the sub-processes. */
7232 fputc ('\n', stdout);
7241 notice ("Target: %s\n", spec_machine);
7242 notice ("Configured with: %s\n", configuration_arguments);
7244 #ifdef THREAD_MODEL_SPEC
7245 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7246 but there's no point in doing all this processing just to get
7247 thread_model back. */
7248 obstack_init (&obstack);
7249 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
7250 obstack_1grow (&obstack, '\0');
7251 thrmod = XOBFINISH (&obstack, const char *);
7253 thrmod = thread_model;
7256 notice ("Thread model: %s\n", thrmod);
7258 /* compiler_version is truncated at the first space when initialized
7259 from version string, so truncate version_string at the first space
7260 before comparing. */
7261 for (n = 0; version_string[n]; n++)
7262 if (version_string[n] == ' ')
7265 if (! strncmp (version_string, compiler_version, n)
7266 && compiler_version[n] == 0)
7267 notice ("gcc version %s %s\n", version_string, pkgversion_string);
7269 notice ("gcc driver version %s %sexecuting gcc version %s\n",
7270 version_string, pkgversion_string, compiler_version);
7276 if (n_infiles == added_libraries)
7277 fatal ("no input files");
7279 /* Make a place to record the compiler output file names
7280 that correspond to the input files. */
7283 i += lang_specific_extra_outfiles;
7284 outfiles = XCNEWVEC (const char *, i);
7286 /* Record which files were specified explicitly as link input. */
7288 explicit_link_files = XCNEWVEC (char, n_infiles);
7291 combine_inputs = true;
7293 combine_inputs = false;
7295 for (i = 0; (int) i < n_infiles; i++)
7297 const char *name = infiles[i].name;
7298 struct compiler *compiler = lookup_compiler (name,
7300 infiles[i].language);
7302 if (compiler && !(compiler->combinable))
7303 combine_inputs = false;
7305 if (lang_n_infiles > 0 && compiler != input_file_compiler
7306 && infiles[i].language && infiles[i].language[0] != '*')
7307 infiles[i].incompiler = compiler;
7311 input_file_compiler = compiler;
7312 infiles[i].incompiler = compiler;
7316 /* Since there is no compiler for this input file, assume it is a
7318 explicit_link_files[i] = 1;
7319 infiles[i].incompiler = NULL;
7321 infiles[i].compiled = false;
7322 infiles[i].preprocessed = false;
7325 if (!combine_inputs && have_c && have_o && lang_n_infiles > 1)
7326 fatal ("cannot specify -o with -c, -S or -E with multiple files");
7328 if (combine_flag && save_temps_flag)
7330 bool save_combine_inputs = combine_inputs;
7331 /* Must do a separate pre-processing pass for C & Objective-C files, to
7332 obtain individual .i files. */
7334 combine_inputs = false;
7335 for (i = 0; (int) i < n_infiles; i++)
7337 int this_file_error = 0;
7339 input_file_number = i;
7340 set_input (infiles[i].name);
7341 if (infiles[i].incompiler
7342 && (infiles[i].incompiler)->needs_preprocessing)
7343 input_file_compiler = infiles[i].incompiler;
7347 if (input_file_compiler)
7349 if (input_file_compiler->spec[0] == '#')
7351 error ("%s: %s compiler not installed on this system",
7352 input_filename, &input_file_compiler->spec[1]);
7353 this_file_error = 1;
7357 value = do_spec (input_file_compiler->spec);
7358 infiles[i].preprocessed = true;
7359 if (!have_o_argbuf_index)
7360 fatal ("spec '%s' is invalid", input_file_compiler->spec);
7361 infiles[i].name = argbuf[have_o_argbuf_index];
7362 infiles[i].incompiler
7363 = lookup_compiler (infiles[i].name,
7364 strlen (infiles[i].name),
7365 infiles[i].language);
7368 this_file_error = 1;
7372 if (this_file_error)
7374 delete_failure_queue ();
7378 clear_failure_queue ();
7380 combine_inputs = save_combine_inputs;
7383 for (i = 0; (int) i < n_infiles; i++)
7385 int this_file_error = 0;
7387 /* Tell do_spec what to substitute for %i. */
7389 input_file_number = i;
7390 set_input (infiles[i].name);
7392 if (infiles[i].compiled)
7395 /* Use the same thing in %o, unless cp->spec says otherwise. */
7397 outfiles[i] = input_filename;
7399 /* Figure out which compiler from the file's suffix. */
7401 if (! combine_inputs)
7403 = lookup_compiler (infiles[i].name, input_filename_length,
7404 infiles[i].language);
7406 input_file_compiler = infiles[i].incompiler;
7408 if (input_file_compiler)
7410 /* Ok, we found an applicable compiler. Run its spec. */
7412 if (input_file_compiler->spec[0] == '#')
7414 error ("%s: %s compiler not installed on this system",
7415 input_filename, &input_file_compiler->spec[1]);
7416 this_file_error = 1;
7422 if (debug_check_temp_file[0])
7423 free (debug_check_temp_file[0]);
7424 debug_check_temp_file[0] = NULL;
7426 if (debug_check_temp_file[1])
7427 free (debug_check_temp_file[1]);
7428 debug_check_temp_file[1] = NULL;
7431 value = do_spec (input_file_compiler->spec);
7432 infiles[i].compiled = true;
7434 this_file_error = 1;
7435 else if (compare_debug && debug_check_temp_file[0])
7438 error ("Recompiling with -fcompare-debug");
7440 compare_debug = -compare_debug;
7441 n_switches = n_switches_debug_check[1];
7442 switches = switches_debug_check[1];
7444 value = do_spec (input_file_compiler->spec);
7446 compare_debug = -compare_debug;
7447 n_switches = n_switches_debug_check[0];
7448 switches = switches_debug_check[0];
7452 error ("during -fcompare-debug recompilation");
7453 this_file_error = 1;
7456 gcc_assert (debug_check_temp_file[1]
7457 && strcmp (debug_check_temp_file[0],
7458 debug_check_temp_file[1]));
7461 error ("Comparing final insns dumps");
7463 if (compare_files (debug_check_temp_file))
7464 this_file_error = 1;
7469 if (debug_check_temp_file[0])
7470 free (debug_check_temp_file[0]);
7471 debug_check_temp_file[0] = NULL;
7473 if (debug_check_temp_file[1])
7474 free (debug_check_temp_file[1]);
7475 debug_check_temp_file[1] = NULL;
7480 /* If this file's name does not contain a recognized suffix,
7481 record it as explicit linker input. */
7484 explicit_link_files[i] = 1;
7486 /* Clear the delete-on-failure queue, deleting the files in it
7487 if this compilation failed. */
7489 if (this_file_error)
7491 delete_failure_queue ();
7494 /* If this compilation succeeded, don't delete those files later. */
7495 clear_failure_queue ();
7498 /* Reset the input file name to the first compile/object file name, for use
7499 with %b in LINK_SPEC. We use the first input file that we can find
7500 a compiler to compile it instead of using infiles.language since for
7501 languages other than C we use aliases that we then lookup later. */
7506 for (i = 0; i < n_infiles ; i++)
7507 if (infiles[i].language && infiles[i].language[0] != '*')
7509 set_input (infiles[i].name);
7514 if (error_count == 0)
7516 /* Make sure INPUT_FILE_NUMBER points to first available open
7518 input_file_number = n_infiles;
7519 if (lang_specific_pre_link ())
7523 /* Determine if there are any linker input files. */
7524 num_linker_inputs = 0;
7525 for (i = 0; (int) i < n_infiles; i++)
7526 if (explicit_link_files[i] || outfiles[i] != NULL)
7527 num_linker_inputs++;
7529 /* Run ld to link all the compiler output files. */
7531 if (num_linker_inputs > 0 && error_count == 0 && print_subprocess_help < 2)
7533 int tmp = execution_count;
7534 const char *fuse_linker_plugin = "fuse-linker-plugin";
7536 /* We'll use ld if we can't find collect2. */
7537 if (! strcmp (linker_name_spec, "collect2"))
7539 char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
7541 linker_name_spec = "ld";
7544 if (switch_matches (fuse_linker_plugin,
7545 fuse_linker_plugin + strlen (fuse_linker_plugin), 0))
7547 linker_plugin_file_spec = find_a_file (&exec_prefixes,
7548 "liblto_plugin.so", X_OK,
7550 if (!linker_plugin_file_spec)
7551 fatal ("-fuse-linker-plugin, but liblto_plugin.so not found");
7553 lto_libgcc_spec = find_a_file (&startfile_prefixes, "libgcc.a",
7555 if (!lto_libgcc_spec)
7556 fatal ("could not find libgcc.a");
7558 lto_gcc_spec = argv[0];
7560 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7562 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false);
7563 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true);
7565 if (print_subprocess_help == 1)
7567 printf (_("\nLinker options\n==============\n\n"));
7568 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7569 " to the linker.\n\n"));
7572 value = do_spec (link_command_spec);
7575 linker_was_run = (tmp != execution_count);
7578 /* If options said don't run linker,
7579 complain about input files to be given to the linker. */
7581 if (! linker_was_run && error_count == 0)
7582 for (i = 0; (int) i < n_infiles; i++)
7583 if (explicit_link_files[i]
7584 && !(infiles[i].language && infiles[i].language[0] == '*'))
7585 error ("%s: linker input file unused because linking not done",
7588 /* Delete some or all of the temporary files we made. */
7591 delete_failure_queue ();
7592 delete_temp_files ();
7594 if (print_help_list)
7596 printf (("\nFor bug reporting instructions, please see:\n"));
7597 printf ("%s\n", bug_report_url);
7600 return (signal_count != 0 ? 2
7601 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
7605 /* Find the proper compilation spec for the file name NAME,
7606 whose length is LENGTH. LANGUAGE is the specified language,
7607 or 0 if this file is to be passed to the linker. */
7609 static struct compiler *
7610 lookup_compiler (const char *name, size_t length, const char *language)
7612 struct compiler *cp;
7614 /* If this was specified by the user to be a linker input, indicate that. */
7615 if (language != 0 && language[0] == '*')
7618 /* Otherwise, look for the language, if one is spec'd. */
7621 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7622 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
7625 error ("language %s not recognized", language);
7629 /* Look for a suffix. */
7630 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7632 if (/* The suffix `-' matches only the file name `-'. */
7633 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
7634 || (strlen (cp->suffix) < length
7635 /* See if the suffix matches the end of NAME. */
7636 && !strcmp (cp->suffix,
7637 name + length - strlen (cp->suffix))
7642 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7643 /* Look again, but case-insensitively this time. */
7645 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7647 if (/* The suffix `-' matches only the file name `-'. */
7648 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
7649 || (strlen (cp->suffix) < length
7650 /* See if the suffix matches the end of NAME. */
7651 && ((!strcmp (cp->suffix,
7652 name + length - strlen (cp->suffix))
7653 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7654 && !strcasecmp (cp->suffix,
7655 name + length - strlen (cp->suffix)))
7661 if (cp >= compilers)
7663 if (cp->spec[0] != '@')
7664 /* A non-alias entry: return it. */
7667 /* An alias entry maps a suffix to a language.
7668 Search for the language; pass 0 for NAME and LENGTH
7669 to avoid infinite recursion if language not found. */
7670 return lookup_compiler (NULL, 0, cp->spec + 1);
7676 save_string (const char *s, int len)
7678 char *result = XNEWVEC (char, len + 1);
7680 memcpy (result, s, len);
7686 pfatal_with_name (const char *name)
7688 perror_with_name (name);
7689 delete_temp_files ();
7694 perror_with_name (const char *name)
7696 error ("%s: %s", name, xstrerror (errno));
7699 /* Output an error message and exit. */
7702 fancy_abort (const char *file, int line, const char *func)
7704 fatal_ice ("internal gcc abort in %s, at %s:%d", func, file, line);
7707 /* Output an error message and exit. */
7710 fatal_ice (const char *cmsgid, ...)
7714 va_start (ap, cmsgid);
7716 fprintf (stderr, "%s: ", programname);
7717 vfprintf (stderr, _(cmsgid), ap);
7719 fprintf (stderr, "\n");
7720 delete_temp_files ();
7721 exit (pass_exit_codes ? ICE_EXIT_CODE : 1);
7725 fatal (const char *cmsgid, ...)
7729 va_start (ap, cmsgid);
7731 fprintf (stderr, "%s: ", programname);
7732 vfprintf (stderr, _(cmsgid), ap);
7734 fprintf (stderr, "\n");
7735 delete_temp_files ();
7739 /* The argument is actually c-format, not gcc-internal-format,
7740 but because functions with identical names are used through
7741 the rest of the compiler with gcc-internal-format, we just
7742 need to hope all users of these functions use the common
7743 subset between c-format and gcc-internal-format. */
7746 error (const char *gmsgid, ...)
7750 va_start (ap, gmsgid);
7751 fprintf (stderr, "%s: ", programname);
7752 vfprintf (stderr, _(gmsgid), ap);
7755 fprintf (stderr, "\n");
7759 notice (const char *cmsgid, ...)
7763 va_start (ap, cmsgid);
7764 vfprintf (stderr, _(cmsgid), ap);
7769 validate_switches_from_spec (const char *spec)
7771 const char *p = spec;
7774 if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{')))
7775 /* We have a switch spec. */
7776 p = validate_switches (p + 1);
7780 validate_all_switches (void)
7782 struct compiler *comp;
7783 struct spec_list *spec;
7785 for (comp = compilers; comp->spec; comp++)
7786 validate_switches_from_spec (comp->spec);
7788 /* Look through the linked list of specs read from the specs file. */
7789 for (spec = specs; spec; spec = spec->next)
7790 validate_switches_from_spec (*spec->ptr_spec);
7792 validate_switches_from_spec (link_command_spec);
7795 /* Look at the switch-name that comes after START
7796 and mark as valid all supplied switches that match it. */
7799 validate_switches (const char *start)
7801 const char *p = start;
7805 bool suffix = false;
7806 bool starred = false;
7808 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7817 if (*p == '.' || *p == ',')
7821 while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
7822 || *p == ',' || *p == '.' || *p == '@')
7827 starred = true, p++;
7833 /* Mark all matching switches as valid. */
7834 for (i = 0; i < n_switches; i++)
7835 if (!strncmp (switches[i].part1, atom, len)
7836 && (starred || switches[i].part1[len] == 0))
7837 switches[i].validated = 1;
7841 if (*p && (p[-1] == '|' || p[-1] == '&'))
7844 if (*p && p[-1] == ':')
7846 while (*p && *p != ';' && *p != '}')
7851 if (*p == '{' || *p == '<')
7852 p = validate_switches (p+1);
7853 else if (p[0] == 'W' && p[1] == '{')
7854 p = validate_switches (p+2);
7861 if (*p && p[-1] == ';')
7875 static struct mdswitchstr *mdswitches;
7876 static int n_mdswitches;
7878 /* Check whether a particular argument was used. The first time we
7879 canonicalize the switches to keep only the ones we care about. */
7882 used_arg (const char *p, int len)
7887 const char *replace;
7892 static struct mswitchstr *mswitches;
7893 static int n_mswitches;
7898 struct mswitchstr *matches;
7902 /* Break multilib_matches into the component strings of string
7903 and replacement string. */
7904 for (q = multilib_matches; *q != '\0'; q++)
7909 = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
7911 q = multilib_matches;
7920 fatal ("multilib spec '%s' is invalid", multilib_matches);
7924 matches[i].len = q - matches[i].str;
7926 matches[i].replace = ++q;
7927 while (*q != ';' && *q != '\0')
7930 goto invalid_matches;
7933 matches[i].rep_len = q - matches[i].replace;
7939 /* Now build a list of the replacement string for switches that we care
7940 about. Make sure we allocate at least one entry. This prevents
7941 xmalloc from calling fatal, and prevents us from re-executing this
7944 = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1));
7945 for (i = 0; i < n_switches; i++)
7946 if ((switches[i].live_cond & SWITCH_IGNORE) == 0)
7948 int xlen = strlen (switches[i].part1);
7949 for (j = 0; j < cnt; j++)
7950 if (xlen == matches[j].len
7951 && ! strncmp (switches[i].part1, matches[j].str, xlen))
7953 mswitches[n_mswitches].str = matches[j].replace;
7954 mswitches[n_mswitches].len = matches[j].rep_len;
7955 mswitches[n_mswitches].replace = (char *) 0;
7956 mswitches[n_mswitches].rep_len = 0;
7962 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7963 on the command line nor any options mutually incompatible with
7965 for (i = 0; i < n_mdswitches; i++)
7969 for (q = multilib_options; *q != '\0'; q++)
7975 while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
7976 || strchr (" /", q[mdswitches[i].len]) == NULL)
7978 while (*q != ' ' && *q != '/' && *q != '\0')
7985 if (*q != ' ' && *q != '\0')
7987 while (*r != ' ' && *r != '\0')
7990 while (*q != ' ' && *q != '/' && *q != '\0')
7993 if (used_arg (r, q - r))
7998 mswitches[n_mswitches].str = mdswitches[i].str;
7999 mswitches[n_mswitches].len = mdswitches[i].len;
8000 mswitches[n_mswitches].replace = (char *) 0;
8001 mswitches[n_mswitches].rep_len = 0;
8014 for (i = 0; i < n_mswitches; i++)
8015 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
8022 default_arg (const char *p, int len)
8026 for (i = 0; i < n_mdswitches; i++)
8027 if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
8033 /* Work out the subdirectory to use based on the options. The format of
8034 multilib_select is a list of elements. Each element is a subdirectory
8035 name followed by a list of options followed by a semicolon. The format
8036 of multilib_exclusions is the same, but without the preceding
8037 directory. First gcc will check the exclusions, if none of the options
8038 beginning with an exclamation point are present, and all of the other
8039 options are present, then we will ignore this completely. Passing
8040 that, gcc will consider each multilib_select in turn using the same
8041 rules for matching the options. If a match is found, that subdirectory
8045 set_multilib_dir (void)
8048 unsigned int this_path_len;
8049 const char *this_path, *this_arg;
8050 const char *start, *end;
8052 int ok, ndfltok, first;
8055 start = multilib_defaults;
8056 while (*start == ' ' || *start == '\t')
8058 while (*start != '\0')
8061 while (*start != ' ' && *start != '\t' && *start != '\0')
8063 while (*start == ' ' || *start == '\t')
8071 mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches);
8072 for (start = multilib_defaults; *start != '\0'; start = end + 1)
8074 while (*start == ' ' || *start == '\t')
8080 for (end = start + 1;
8081 *end != ' ' && *end != '\t' && *end != '\0'; end++)
8084 obstack_grow (&multilib_obstack, start, end - start);
8085 obstack_1grow (&multilib_obstack, 0);
8086 mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
8087 mdswitches[i++].len = end - start;
8094 p = multilib_exclusions;
8097 /* Ignore newlines. */
8104 /* Check the arguments. */
8111 fatal ("multilib exclusions '%s' is invalid",
8112 multilib_exclusions);
8122 while (*p != ' ' && *p != ';')
8125 goto invalid_exclusions;
8129 if (*this_arg != '!')
8137 ok = used_arg (this_arg, p - this_arg);
8152 p = multilib_select;
8155 /* Ignore newlines. */
8162 /* Get the initial path. */
8169 fatal ("multilib select '%s' is invalid",
8174 this_path_len = p - this_path;
8176 /* Check the arguments. */
8183 goto invalid_select;
8192 while (*p != ' ' && *p != ';')
8195 goto invalid_select;
8199 if (*this_arg != '!')
8207 /* If this is a default argument, we can just ignore it.
8208 This is true even if this_arg begins with '!'. Beginning
8209 with '!' does not mean that this argument is necessarily
8210 inappropriate for this library: it merely means that
8211 there is a more specific library which uses this
8212 argument. If this argument is a default, we need not
8213 consider that more specific library. */
8214 ok = used_arg (this_arg, p - this_arg);
8221 if (default_arg (this_arg, p - this_arg))
8230 if (this_path_len != 1
8231 || this_path[0] != '.')
8233 char *new_multilib_dir = XNEWVEC (char, this_path_len + 1);
8236 strncpy (new_multilib_dir, this_path, this_path_len);
8237 new_multilib_dir[this_path_len] = '\0';
8238 q = strchr (new_multilib_dir, ':');
8241 multilib_dir = new_multilib_dir;
8248 const char *q = this_path, *end = this_path + this_path_len;
8250 while (q < end && *q != ':')
8254 char *new_multilib_os_dir = XNEWVEC (char, end - q);
8255 memcpy (new_multilib_os_dir, q + 1, end - q - 1);
8256 new_multilib_os_dir[end - q - 1] = '\0';
8257 multilib_os_dir = new_multilib_os_dir;
8265 if (multilib_dir == NULL && multilib_os_dir != NULL
8266 && strcmp (multilib_os_dir, ".") == 0)
8268 free (CONST_CAST (char *, multilib_os_dir));
8269 multilib_os_dir = NULL;
8271 else if (multilib_dir != NULL && multilib_os_dir == NULL)
8272 multilib_os_dir = multilib_dir;
8275 /* Print out the multiple library subdirectory selection
8276 information. This prints out a series of lines. Each line looks
8277 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8278 required. Only the desired options are printed out, the negative
8279 matches. The options are print without a leading dash. There are
8280 no spaces to make it easy to use the information in the shell.
8281 Each subdirectory is printed only once. This assumes the ordering
8282 generated by the genmultilib script. Also, we leave out ones that match
8286 print_multilib_info (void)
8288 const char *p = multilib_select;
8289 const char *last_path = 0, *this_path;
8291 unsigned int last_path_len = 0;
8296 /* Ignore newlines. */
8303 /* Get the initial path. */
8310 fatal ("multilib select '%s' is invalid", multilib_select);
8316 /* When --disable-multilib was used but target defines
8317 MULTILIB_OSDIRNAMES, entries starting with .: are there just
8318 to find multilib_os_dir, so skip them from output. */
8319 if (this_path[0] == '.' && this_path[1] == ':')
8322 /* Check for matches with the multilib_exclusions. We don't bother
8323 with the '!' in either list. If any of the exclusion rules match
8324 all of its options with the select rule, we skip it. */
8326 const char *e = multilib_exclusions;
8327 const char *this_arg;
8332 /* Ignore newlines. */
8339 /* Check the arguments. */
8348 fatal ("multilib exclusion '%s' is invalid",
8349 multilib_exclusions);
8360 while (*e != ' ' && *e != ';')
8363 goto invalid_exclusion;
8371 int len = e - this_arg;
8374 goto invalid_select;
8378 while (*q != ' ' && *q != ';')
8381 goto invalid_select;
8385 if (! strncmp (arg, this_arg,
8386 (len < q - arg) ? q - arg : len)
8387 || default_arg (this_arg, e - this_arg))
8417 /* If this is a duplicate, skip it. */
8418 skip = (last_path != 0
8419 && (unsigned int) (p - this_path) == last_path_len
8420 && ! strncmp (last_path, this_path, last_path_len));
8422 last_path = this_path;
8423 last_path_len = p - this_path;
8426 /* If this directory requires any default arguments, we can skip
8427 it. We will already have printed a directory identical to
8428 this one which does not require that default argument. */
8439 goto invalid_select;
8446 while (*q != ' ' && *q != ';')
8449 goto invalid_select;
8454 && default_arg (arg, q - arg))
8469 for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
8480 goto invalid_select;
8488 use_arg = *p != '!';
8493 while (*p != ' ' && *p != ';')
8496 goto invalid_select;
8508 /* If there are extra options, print them now. */
8509 if (multilib_extra && *multilib_extra)
8511 int print_at = TRUE;
8514 for (q = multilib_extra; *q != '\0'; q++)
8535 /* getenv built-in spec function.
8537 Returns the value of the environment variable given by its first
8538 argument, concatenated with the second argument. If the
8539 environment variable is not defined, a fatal error is issued. */
8542 getenv_spec_function (int argc, const char **argv)
8552 value = getenv (argv[0]);
8554 fatal ("environment variable \"%s\" not defined", argv[0]);
8556 /* We have to escape every character of the environment variable so
8557 they are not interpreted as active spec characters. A
8558 particularly painful case is when we are reading a variable
8559 holding a windows path complete with \ separators. */
8560 len = strlen (value) * 2 + strlen (argv[1]) + 1;
8561 result = XNEWVAR (char, len);
8562 for (ptr = result; *value; ptr += 2)
8568 strcpy (ptr, argv[1]);
8573 /* if-exists built-in spec function.
8575 Checks to see if the file specified by the absolute pathname in
8576 ARGS exists. Returns that pathname if found.
8578 The usual use for this function is to check for a library file
8579 (whose name has been expanded with %s). */
8582 if_exists_spec_function (int argc, const char **argv)
8584 /* Must have only one argument. */
8585 if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
8591 /* if-exists-else built-in spec function.
8593 This is like if-exists, but takes an additional argument which
8594 is returned if the first argument does not exist. */
8597 if_exists_else_spec_function (int argc, const char **argv)
8599 /* Must have exactly two arguments. */
8603 if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
8609 /* replace-outfile built-in spec function.
8611 This looks for the first argument in the outfiles array's name and
8612 replaces it with the second argument. */
8615 replace_outfile_spec_function (int argc, const char **argv)
8618 /* Must have exactly two arguments. */
8622 for (i = 0; i < n_infiles; i++)
8624 if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
8625 outfiles[i] = xstrdup (argv[1]);
8630 /* Given two version numbers, compares the two numbers.
8631 A version number must match the regular expression
8632 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8635 compare_version_strings (const char *v1, const char *v2)
8640 if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8641 REG_EXTENDED | REG_NOSUB) != 0)
8643 rresult = regexec (&r, v1, 0, NULL, 0);
8644 if (rresult == REG_NOMATCH)
8645 fatal ("invalid version number `%s'", v1);
8646 else if (rresult != 0)
8648 rresult = regexec (&r, v2, 0, NULL, 0);
8649 if (rresult == REG_NOMATCH)
8650 fatal ("invalid version number `%s'", v2);
8651 else if (rresult != 0)
8654 return strverscmp (v1, v2);
8658 /* version_compare built-in spec function.
8660 This takes an argument of the following form:
8662 <comparison-op> <arg1> [<arg2>] <switch> <result>
8664 and produces "result" if the comparison evaluates to true,
8665 and nothing if it doesn't.
8667 The supported <comparison-op> values are:
8669 >= true if switch is a later (or same) version than arg1
8671 < true if switch is an earlier version than arg1
8673 >< true if switch is arg1 or later, and earlier than arg2
8674 <> true if switch is earlier than arg1 or is arg2 or later
8676 If the switch is not present, the condition is false unless
8677 the first character of the <comparison-op> is '!'.
8680 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8681 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8684 version_compare_spec_function (int argc, const char **argv)
8688 const char *switch_value = NULL;
8693 fatal ("too few arguments to %%:version-compare");
8694 if (argv[0][0] == '\0')
8696 if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
8698 if (argc != nargs + 3)
8699 fatal ("too many arguments to %%:version-compare");
8701 switch_len = strlen (argv[nargs + 1]);
8702 for (i = 0; i < n_switches; i++)
8703 if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
8704 && check_live_switch (i, switch_len))
8705 switch_value = switches[i].part1 + switch_len;
8707 if (switch_value == NULL)
8711 comp1 = compare_version_strings (switch_value, argv[1]);
8713 comp2 = compare_version_strings (switch_value, argv[2]);
8715 comp2 = -1; /* This value unused. */
8718 switch (argv[0][0] << 8 | argv[0][1])
8720 case '>' << 8 | '=':
8721 result = comp1 >= 0;
8723 case '!' << 8 | '<':
8724 result = comp1 >= 0 || switch_value == NULL;
8729 case '!' << 8 | '>':
8730 result = comp1 < 0 || switch_value == NULL;
8732 case '>' << 8 | '<':
8733 result = comp1 >= 0 && comp2 < 0;
8735 case '<' << 8 | '>':
8736 result = comp1 < 0 || comp2 >= 0;
8740 fatal ("unknown operator '%s' in %%:version-compare", argv[0]);
8745 return argv[nargs + 2];
8748 /* %:include builtin spec function. This differs from %include in that it
8749 can be nested inside a spec, and thus be conditionalized. It takes
8750 one argument, the filename, and looks for it in the startfile path.
8751 The result is always NULL, i.e. an empty expansion. */
8754 include_spec_function (int argc, const char **argv)
8761 file = find_a_file (&startfile_prefixes, argv[0], R_OK, true);
8762 read_specs (file ? file : argv[0], FALSE);
8767 /* %:print-asm-header spec function. Print a banner to say that the
8768 following output is from the assembler. */
8771 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED,
8772 const char **argv ATTRIBUTE_UNUSED)
8774 printf (_("Assembler options\n=================\n\n"));
8775 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8780 /* Compute a timestamp to initialize flag_random_seed. */
8783 get_local_tick (void)
8787 /* Get some more or less random data. */
8788 #ifdef HAVE_GETTIMEOFDAY
8792 gettimeofday (&tv, NULL);
8793 ret = tv.tv_sec * 1000 + tv.tv_usec / 1000;
8797 time_t now = time (NULL);
8799 if (now != (time_t)-1)
8800 ret = (unsigned) now;
8807 /* %:compare-debug-dump-opt spec function. Save the last argument,
8808 expected to be the last -fdump-final-insns option, or generate a
8812 compare_debug_dump_opt_spec_function (int arg,
8813 const char **argv ATTRIBUTE_UNUSED)
8818 static char random_seed[HOST_BITS_PER_WIDE_INT / 4 + 3];
8821 fatal ("too many arguments to %%:compare-debug-dump-opt");
8823 do_spec_2 ("%{fdump-final-insns=*:%*}");
8824 do_spec_1 (" ", 0, NULL);
8826 if (argbuf_index > 0 && strcmp (argv[argbuf_index - 1], "."))
8831 name = xstrdup (argv[argbuf_index - 1]);
8836 const char *ext = NULL;
8838 if (argbuf_index > 0)
8840 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8843 else if (!compare_debug)
8846 do_spec_2 ("%g.gkd");
8848 do_spec_1 (" ", 0, NULL);
8850 gcc_assert (argbuf_index > 0);
8852 name = concat (argbuf[argbuf_index - 1], ext, NULL);
8854 ret = concat ("-fdump-final-insns=", name, NULL);
8857 which = compare_debug < 0;
8858 debug_check_temp_file[which] = name;
8862 unsigned HOST_WIDE_INT value = get_local_tick () ^ getpid ();
8864 sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value);
8868 ret = concat ("%{!frandom-seed=*:-frandom-seed=", random_seed, "} ",
8877 static const char *debug_auxbase_opt;
8879 /* %:compare-debug-self-opt spec function. Expands to the options
8880 that are to be passed in the second compilation of
8884 compare_debug_self_opt_spec_function (int arg,
8885 const char **argv ATTRIBUTE_UNUSED)
8888 fatal ("too many arguments to %%:compare-debug-self-opt");
8890 if (compare_debug >= 0)
8893 do_spec_2 ("%{c|S:%{o*:%*}}");
8894 do_spec_1 (" ", 0, NULL);
8896 if (argbuf_index > 0)
8897 debug_auxbase_opt = concat ("-auxbase-strip ",
8898 argbuf[argbuf_index - 1],
8901 debug_auxbase_opt = NULL;
8904 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8905 %<fdump-final-insns=* -w -S -o %j \
8906 %{!fcompare-debug-second:-fcompare-debug-second} \
8907 ", compare_debug_opt, NULL);
8910 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8911 options that are to be passed in the second compilation of
8912 compare-debug. It expects, as an argument, the basename of the
8913 current input file name, with the .gk suffix appended to it. */
8916 compare_debug_auxbase_opt_spec_function (int arg,
8923 fatal ("too few arguments to %%:compare-debug-auxbase-opt");
8926 fatal ("too many arguments to %%:compare-debug-auxbase-opt");
8928 if (compare_debug >= 0)
8931 len = strlen (argv[0]);
8932 if (len < 3 || strcmp (argv[0] + len - 3, ".gk") != 0)
8933 fatal ("argument to %%:compare-debug-auxbase-opt does not end in .gk");
8935 if (debug_auxbase_opt)
8936 return debug_auxbase_opt;
8938 #define OPT "-auxbase "
8941 name = (char*) xmalloc (sizeof (OPT) + len);
8942 memcpy (name, OPT, sizeof (OPT) - 1);
8943 memcpy (name + sizeof (OPT) - 1, argv[0], len);
8944 name[sizeof (OPT) - 1 + len] = '\0';
OSDN Git Service
