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. */
688 #ifndef SWITCHES_NEED_SPACES
689 #define SWITCHES_NEED_SPACES ""
692 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
694 #define ENDFILE_SPEC ""
698 #define LINKER_NAME "collect2"
701 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
702 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
707 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
709 #ifndef ASM_DEBUG_SPEC
710 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
711 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
712 # define ASM_DEBUG_SPEC \
713 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
714 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
715 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
717 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
718 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
720 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
721 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
725 #ifndef ASM_DEBUG_SPEC
726 # define ASM_DEBUG_SPEC ""
729 /* Here is the spec for running the linker, after compiling all files. */
731 /* This is overridable by the target in case they need to specify the
732 -lgcc and -lc order specially, yet not require them to override all
733 of LINK_COMMAND_SPEC. */
734 #ifndef LINK_GCC_C_SEQUENCE_SPEC
735 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
738 #ifndef LINK_SSP_SPEC
739 #ifdef TARGET_LIBC_PROVIDES_SSP
740 #define LINK_SSP_SPEC "%{fstack-protector:}"
742 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
746 #ifndef LINK_PIE_SPEC
748 #define LINK_PIE_SPEC "%{pie:-pie} "
750 #define LINK_PIE_SPEC "%{pie:} "
754 #ifndef LINK_BUILDID_SPEC
755 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
756 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
761 /* -u* was put back because both BSD and SysV seem to support it. */
762 /* %{static:} simply prevents an error message if the target machine
763 doesn't handle -static. */
764 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
765 scripts which exist in user specified directories, or in standard
767 #ifndef LINK_COMMAND_SPEC
768 #define LINK_COMMAND_SPEC "\
769 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
770 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
771 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
772 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
773 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
774 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
775 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
776 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
779 #ifndef LINK_LIBGCC_SPEC
780 /* Generate -L options for startfile prefix list. */
781 # define LINK_LIBGCC_SPEC "%D"
784 #ifndef STARTFILE_PREFIX_SPEC
785 # define STARTFILE_PREFIX_SPEC ""
789 # define SYSROOT_SPEC "--sysroot=%R"
792 #ifndef SYSROOT_SUFFIX_SPEC
793 # define SYSROOT_SUFFIX_SPEC ""
796 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
797 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
800 static const char *asm_debug;
801 static const char *cpp_spec = CPP_SPEC;
802 static const char *cc1_spec = CC1_SPEC;
803 static const char *cc1plus_spec = CC1PLUS_SPEC;
804 static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
805 static const char *link_ssp_spec = LINK_SSP_SPEC;
806 static const char *asm_spec = ASM_SPEC;
807 static const char *asm_final_spec = ASM_FINAL_SPEC;
808 static const char *link_spec = LINK_SPEC;
809 static const char *lib_spec = LIB_SPEC;
810 static const char *mfwrap_spec = MFWRAP_SPEC;
811 static const char *mflib_spec = MFLIB_SPEC;
812 static const char *link_gomp_spec = "";
813 static const char *libgcc_spec = LIBGCC_SPEC;
814 static const char *endfile_spec = ENDFILE_SPEC;
815 static const char *startfile_spec = STARTFILE_SPEC;
816 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
817 static const char *linker_name_spec = LINKER_NAME;
818 static const char *link_command_spec = LINK_COMMAND_SPEC;
819 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
820 static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
821 static const char *sysroot_spec = SYSROOT_SPEC;
822 static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
823 static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
825 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
826 There should be no need to override these in target dependent files,
827 but we need to copy them to the specs file so that newer versions
828 of the GCC driver can correctly drive older tool chains with the
829 appropriate -B options. */
831 /* When cpplib handles traditional preprocessing, get rid of this, and
832 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
833 that we default the front end language better. */
834 static const char *trad_capable_cpp =
835 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
837 /* We don't wrap .d files in %W{} since a missing .d file, and
838 therefore no dependency entry, confuses make into thinking a .o
839 file that happens to exist is up-to-date. */
840 static const char *cpp_unique_options =
841 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
842 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
843 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
844 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
845 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
846 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
847 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
848 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
849 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
850 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
853 /* This contains cpp options which are common with cc1_options and are passed
854 only when preprocessing only to avoid duplication. We pass the cc1 spec
855 options to the preprocessor so that it the cc1 spec may manipulate
856 options used to set target flags. Those special target flags settings may
857 in turn cause preprocessor symbols to be defined specially. */
858 static const char *cpp_options =
859 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
860 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
861 %{undef} %{save-temps*:-fpch-preprocess}";
863 /* This contains cpp options which are not passed when the preprocessor
864 output will be used by another program. */
865 static const char *cpp_debug_options = "%{d*}";
867 /* NB: This is shared amongst all front-ends, except for Ada. */
868 static const char *cc1_options =
869 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
870 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
871 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
872 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
873 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
874 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
875 %{Qn:-fno-ident} %{--help:--help}\
876 %{--target-help:--target-help}\
877 %{--help=*:--help=%(VALUE)}\
878 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
879 %{fsyntax-only:-o %j} %{-param*}\
880 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
881 %{coverage:-fprofile-arcs -ftest-coverage}";
883 static const char *asm_options =
884 "%{--target-help:%:print-asm-header()} "
886 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
887 to the assembler equivalents. */
888 "%{v} %{w:-W} %{I*} "
890 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
892 static const char *invoke_as =
893 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
894 "%{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
895 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
897 "%{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
898 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
901 /* Some compilers have limits on line lengths, and the multilib_select
902 and/or multilib_matches strings can be very long, so we build them at
904 static struct obstack multilib_obstack;
905 static const char *multilib_select;
906 static const char *multilib_matches;
907 static const char *multilib_defaults;
908 static const char *multilib_exclusions;
910 /* Check whether a particular argument is a default argument. */
912 #ifndef MULTILIB_DEFAULTS
913 #define MULTILIB_DEFAULTS { "" }
916 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
918 #ifndef DRIVER_SELF_SPECS
919 #define DRIVER_SELF_SPECS ""
922 /* Adding -fopenmp should imply pthreads. This is particularly important
923 for targets that use different start files and suchlike. */
924 #ifndef GOMP_SELF_SPECS
925 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
928 static const char *const driver_self_specs[] = {
929 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
930 DRIVER_SELF_SPECS, GOMP_SELF_SPECS
933 #ifndef OPTION_DEFAULT_SPECS
934 #define OPTION_DEFAULT_SPECS { "", "" }
943 static const struct default_spec
944 option_default_specs[] = { OPTION_DEFAULT_SPECS };
948 struct user_specs *next;
949 const char *filename;
952 static struct user_specs *user_specs_head, *user_specs_tail;
954 #ifndef SWITCH_TAKES_ARG
955 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
958 #ifndef WORD_SWITCH_TAKES_ARG
959 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
962 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
963 /* This defines which switches stop a full compilation. */
964 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
965 ((CHAR) == 'c' || (CHAR) == 'S')
967 #ifndef SWITCH_CURTAILS_COMPILATION
968 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
969 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
973 /* Record the mapping from file suffixes for compilation specs. */
977 const char *suffix; /* Use this compiler for input files
978 whose names end in this suffix. */
980 const char *spec; /* To use this compiler, run this spec. */
982 const char *cpp_spec; /* If non-NULL, substitute this spec
983 for `%C', rather than the usual
985 const int combinable; /* If nonzero, compiler can deal with
986 multiple source files at once (IMA). */
987 const int needs_preprocessing; /* If nonzero, source files need to
988 be run through a preprocessor. */
991 /* Pointer to a vector of `struct compiler' that gives the spec for
992 compiling a file, based on its suffix.
993 A file that does not end in any of these suffixes will be passed
994 unchanged to the loader and nothing else will be done to it.
996 An entry containing two 0s is used to terminate the vector.
998 If multiple entries match a file, the last matching one is used. */
1000 static struct compiler *compilers;
1002 /* Number of entries in `compilers', not counting the null terminator. */
1004 static int n_compilers;
1006 /* The default list of file name suffixes and their compilation specs. */
1008 static const struct compiler default_compilers[] =
1010 /* Add lists of suffixes of known languages here. If those languages
1011 were not present when we built the driver, we will hit these copies
1012 and be given a more meaningful error than "file not used since
1013 linking is not done". */
1014 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1015 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1016 {".mii", "#Objective-C++", 0, 0, 0},
1017 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1018 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1019 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1020 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1021 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1022 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1023 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1024 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1025 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1026 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1027 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1028 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1029 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1030 {".r", "#Ratfor", 0, 0, 0},
1031 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1032 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1033 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1034 /* Next come the entries for C. */
1035 {".c", "@c", 0, 1, 1},
1037 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1038 external preprocessor if -save-temps is given. */
1039 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1041 %{traditional|ftraditional:\
1042 %eGNU C no longer supports -traditional without -E}\
1044 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1045 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1046 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1048 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1049 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1050 %{!fsyntax-only:%(invoke_as)}} \
1052 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1053 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i}}\
1054 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1055 cc1 %(cpp_unique_options) %(cc1_options)}}\
1056 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1058 "%{!E:%e-E or -x required when input is from standard input}\
1059 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1060 {".h", "@c-header", 0, 0, 0},
1062 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1063 external preprocessor if -save-temps is given. */
1064 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1066 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1067 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1068 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1070 -o %g.s %{!o*:--output-pch=%i.gch}\
1071 %W{o*:--output-pch=%*}%V}\
1072 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1073 cc1 %(cpp_unique_options) %(cc1_options)\
1074 -o %g.s %{!o*:--output-pch=%i.gch}\
1075 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1076 {".i", "@cpp-output", 0, 1, 0},
1078 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1079 {".s", "@assembler", 0, 1, 0},
1081 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1082 {".sx", "@assembler-with-cpp", 0, 1, 0},
1083 {".S", "@assembler-with-cpp", 0, 1, 0},
1084 {"@assembler-with-cpp",
1085 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1086 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1087 %{E|M|MM:%(cpp_debug_options)}\
1088 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1089 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1091 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1092 %{E|M|MM:%(cpp_debug_options)}\
1093 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1094 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1099 /* Mark end of table. */
1103 /* Number of elements in default_compilers, not counting the terminator. */
1105 static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
1107 /* A vector of options to give to the linker.
1108 These options are accumulated by %x,
1109 and substituted into the linker command with %X. */
1110 static int n_linker_options;
1111 static char **linker_options;
1113 /* A vector of options to give to the assembler.
1114 These options are accumulated by -Wa,
1115 and substituted into the assembler command with %Y. */
1116 static int n_assembler_options;
1117 static char **assembler_options;
1119 /* A vector of options to give to the preprocessor.
1120 These options are accumulated by -Wp,
1121 and substituted into the preprocessor command with %Z. */
1122 static int n_preprocessor_options;
1123 static char **preprocessor_options;
1125 /* Define how to map long options into short ones. */
1127 /* This structure describes one mapping. */
1130 /* The long option's name. */
1131 const char *const name;
1132 /* The equivalent short option. */
1133 const char *const equivalent;
1134 /* Argument info. A string of flag chars; NULL equals no options.
1135 a => argument required.
1136 o => argument optional.
1137 j => join argument to equivalent, making one word.
1138 * => require other text after NAME as an argument. */
1139 const char *const arg_info;
1142 /* This is the table of mappings. Mappings are tried sequentially
1143 for each option encountered; the first one that matches, wins. */
1145 static const struct option_map option_map[] =
1147 {"--all-warnings", "-Wall", 0},
1148 {"--ansi", "-ansi", 0},
1149 {"--assemble", "-S", 0},
1150 {"--assert", "-A", "a"},
1151 {"--classpath", "-fclasspath=", "aj"},
1152 {"--bootclasspath", "-fbootclasspath=", "aj"},
1153 {"--CLASSPATH", "-fclasspath=", "aj"},
1154 {"--combine", "-combine", 0},
1155 {"--comments", "-C", 0},
1156 {"--comments-in-macros", "-CC", 0},
1157 {"--compile", "-c", 0},
1158 {"--debug", "-g", "oj"},
1159 {"--define-macro", "-D", "aj"},
1160 {"--dependencies", "-M", 0},
1161 {"--dump", "-d", "a"},
1162 {"--dumpbase", "-dumpbase", "a"},
1163 {"--encoding", "-fencoding=", "aj"},
1164 {"--entry", "-e", 0},
1165 {"--extra-warnings", "-W", 0},
1166 {"--extdirs", "-fextdirs=", "aj"},
1167 {"--for-assembler", "-Wa", "a"},
1168 {"--for-linker", "-Xlinker", "a"},
1169 {"--force-link", "-u", "a"},
1170 {"--coverage", "-coverage", 0},
1171 {"--imacros", "-imacros", "a"},
1172 {"--include", "-include", "a"},
1173 {"--include-barrier", "-I-", 0},
1174 {"--include-directory", "-I", "aj"},
1175 {"--include-directory-after", "-idirafter", "a"},
1176 {"--include-prefix", "-iprefix", "a"},
1177 {"--include-with-prefix", "-iwithprefix", "a"},
1178 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1179 {"--include-with-prefix-after", "-iwithprefix", "a"},
1180 {"--language", "-x", "a"},
1181 {"--library-directory", "-L", "a"},
1182 {"--machine", "-m", "aj"},
1183 {"--machine-", "-m", "*j"},
1184 {"--no-canonical-prefixes", "-no-canonical-prefixes", 0},
1185 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1186 {"--no-line-commands", "-P", 0},
1187 {"--no-precompiled-includes", "-noprecomp", 0},
1188 {"--no-standard-includes", "-nostdinc", 0},
1189 {"--no-standard-libraries", "-nostdlib", 0},
1190 {"--no-warnings", "-w", 0},
1191 {"--optimize", "-O", "oj"},
1192 {"--output", "-o", "a"},
1193 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1194 {"--param", "--param", "a"},
1195 {"--pass-exit-codes", "-pass-exit-codes", 0},
1196 {"--pedantic", "-pedantic", 0},
1197 {"--pedantic-errors", "-pedantic-errors", 0},
1198 {"--pie", "-pie", 0},
1199 {"--pipe", "-pipe", 0},
1200 {"--prefix", "-B", "a"},
1201 {"--preprocess", "-E", 0},
1202 {"--print-search-dirs", "-print-search-dirs", 0},
1203 {"--print-file-name", "-print-file-name=", "aj"},
1204 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1205 {"--print-missing-file-dependencies", "-MG", 0},
1206 {"--print-multi-lib", "-print-multi-lib", 0},
1207 {"--print-multi-directory", "-print-multi-directory", 0},
1208 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1209 {"--print-prog-name", "-print-prog-name=", "aj"},
1210 {"--print-sysroot", "-print-sysroot", 0},
1211 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1212 {"--profile", "-p", 0},
1213 {"--profile-blocks", "-a", 0},
1214 {"--quiet", "-q", 0},
1215 {"--resource", "-fcompile-resource=", "aj"},
1216 {"--save-temps", "-save-temps", 0},
1217 {"--shared", "-shared", 0},
1218 {"--silent", "-q", 0},
1219 {"--specs", "-specs=", "aj"},
1220 {"--static", "-static", 0},
1221 {"--std", "-std=", "aj"},
1222 {"--symbolic", "-symbolic", 0},
1223 {"--sysroot", "--sysroot=", "aj"},
1224 {"--time", "-time", 0},
1225 {"--trace-includes", "-H", 0},
1226 {"--traditional", "-traditional", 0},
1227 {"--traditional-cpp", "-traditional-cpp", 0},
1228 {"--trigraphs", "-trigraphs", 0},
1229 {"--undefine-macro", "-U", "aj"},
1230 {"--user-dependencies", "-MM", 0},
1231 {"--verbose", "-v", 0},
1232 {"--warn-", "-W", "*j"},
1233 {"--write-dependencies", "-MD", 0},
1234 {"--write-user-dependencies", "-MMD", 0},
1239 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1240 static const struct {
1241 const char *const option_found;
1242 const char *const replacements;
1243 } target_option_translations[] =
1245 TARGET_OPTION_TRANSLATE_TABLE,
1250 /* Translate the options described by *ARGCP and *ARGVP.
1251 Make a new vector and store it back in *ARGVP,
1252 and store its length in *ARGCP. */
1255 translate_options (int *argcp, const char *const **argvp)
1259 const char *const *argv = *argvp;
1260 int newvsize = (argc + 2) * 2 * sizeof (const char *);
1261 const char **newv = XNEWVAR (const char *, newvsize);
1265 newv[newindex++] = argv[i++];
1269 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1273 target_option_translations[tott_idx].option_found;
1276 if (strcmp (target_option_translations[tott_idx].option_found,
1283 for (sp = target_option_translations[tott_idx].replacements;
1290 newvsize += spaces * sizeof (const char *);
1291 newv = XRESIZEVAR (const char *, newv, newvsize);
1293 sp = target_option_translations[tott_idx].replacements;
1302 newv[newindex++] = np;
1303 while (*np != ' ' && *np)
1314 if (target_option_translations[tott_idx].option_found)
1318 /* Translate -- options. */
1319 if (argv[i][0] == '-' && argv[i][1] == '-')
1322 /* Find a mapping that applies to this option. */
1323 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1325 size_t optlen = strlen (option_map[j].name);
1326 size_t arglen = strlen (argv[i]);
1327 size_t complen = arglen > optlen ? optlen : arglen;
1328 const char *arginfo = option_map[j].arg_info;
1333 if (!strncmp (argv[i], option_map[j].name, complen))
1335 const char *arg = 0;
1337 if (arglen < optlen)
1340 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1341 if (strlen (option_map[k].name) >= arglen
1342 && !strncmp (argv[i], option_map[k].name, arglen))
1344 error ("ambiguous abbreviation %s", argv[i]);
1348 if (k != ARRAY_SIZE (option_map))
1352 if (arglen > optlen)
1354 /* If the option has an argument, accept that. */
1355 if (argv[i][optlen] == '=')
1356 arg = argv[i] + optlen + 1;
1358 /* If this mapping requires extra text at end of name,
1359 accept that as "argument". */
1360 else if (strchr (arginfo, '*') != 0)
1361 arg = argv[i] + optlen;
1363 /* Otherwise, extra text at end means mismatch.
1364 Try other mappings. */
1369 else if (strchr (arginfo, '*') != 0)
1371 error ("incomplete '%s' option", option_map[j].name);
1375 /* Handle arguments. */
1376 if (strchr (arginfo, 'a') != 0)
1382 error ("missing argument to '%s' option",
1383 option_map[j].name);
1390 else if (strchr (arginfo, '*') != 0)
1392 else if (strchr (arginfo, 'o') == 0)
1395 error ("extraneous argument to '%s' option",
1396 option_map[j].name);
1400 /* Store the translation as one argv elt or as two. */
1401 if (arg != 0 && strchr (arginfo, 'j') != 0)
1402 newv[newindex++] = concat (option_map[j].equivalent, arg,
1406 newv[newindex++] = option_map[j].equivalent;
1407 newv[newindex++] = arg;
1410 newv[newindex++] = option_map[j].equivalent;
1418 /* Handle old-fashioned options--just copy them through,
1419 with their arguments. */
1420 else if (argv[i][0] == '-')
1422 const char *p = argv[i] + 1;
1426 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1427 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1428 else if (WORD_SWITCH_TAKES_ARG (p))
1429 nskip += WORD_SWITCH_TAKES_ARG (p);
1430 else if ((c == 'B' || c == 'b' || c == 'x')
1433 else if (! strcmp (p, "Xlinker"))
1435 else if (! strcmp (p, "Xpreprocessor"))
1437 else if (! strcmp (p, "Xassembler"))
1440 /* Watch out for an option at the end of the command line that
1441 is missing arguments, and avoid skipping past the end of the
1443 if (nskip + i > argc)
1448 newv[newindex++] = argv[i++];
1453 /* Ordinary operands, or +e options. */
1454 newv[newindex++] = argv[i++];
1464 skip_whitespace (char *p)
1468 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1469 be considered whitespace. */
1470 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1472 else if (*p == '\n' || *p == ' ' || *p == '\t')
1486 /* Structures to keep track of prefixes to try when looking for files. */
1490 const char *prefix; /* String to prepend to the path. */
1491 struct prefix_list *next; /* Next in linked list. */
1492 int require_machine_suffix; /* Don't use without machine_suffix. */
1493 /* 2 means try both machine_suffix and just_machine_suffix. */
1494 int priority; /* Sort key - priority within list. */
1495 int os_multilib; /* 1 if OS multilib scheme should be used,
1496 0 for GCC multilib scheme. */
1501 struct prefix_list *plist; /* List of prefixes to try */
1502 int max_len; /* Max length of a prefix in PLIST */
1503 const char *name; /* Name of this list (used in config stuff) */
1506 /* List of prefixes to try when looking for executables. */
1508 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1510 /* List of prefixes to try when looking for startup (crt0) files. */
1512 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1514 /* List of prefixes to try when looking for include files. */
1516 static struct path_prefix include_prefixes = { 0, 0, "include" };
1518 /* Suffix to attach to directories searched for commands.
1519 This looks like `MACHINE/VERSION/'. */
1521 static const char *machine_suffix = 0;
1523 /* Suffix to attach to directories searched for commands.
1524 This is just `MACHINE/'. */
1526 static const char *just_machine_suffix = 0;
1528 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1530 static const char *gcc_exec_prefix;
1532 /* Adjusted value of standard_libexec_prefix. */
1534 static const char *gcc_libexec_prefix;
1536 /* Default prefixes to attach to command names. */
1538 #ifndef STANDARD_STARTFILE_PREFIX_1
1539 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1541 #ifndef STANDARD_STARTFILE_PREFIX_2
1542 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1545 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1546 #undef MD_EXEC_PREFIX
1547 #undef MD_STARTFILE_PREFIX
1548 #undef MD_STARTFILE_PREFIX_1
1551 /* If no prefixes defined, use the null string, which will disable them. */
1552 #ifndef MD_EXEC_PREFIX
1553 #define MD_EXEC_PREFIX ""
1555 #ifndef MD_STARTFILE_PREFIX
1556 #define MD_STARTFILE_PREFIX ""
1558 #ifndef MD_STARTFILE_PREFIX_1
1559 #define MD_STARTFILE_PREFIX_1 ""
1562 /* These directories are locations set at configure-time based on the
1563 --prefix option provided to configure. Their initializers are
1564 defined in Makefile.in. These paths are not *directly* used when
1565 gcc_exec_prefix is set because, in that case, we know where the
1566 compiler has been installed, and use paths relative to that
1567 location instead. */
1568 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1569 static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
1570 static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1571 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1573 /* For native compilers, these are well-known paths containing
1574 components that may be provided by the system. For cross
1575 compilers, these paths are not used. */
1576 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1577 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1578 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1579 static const char *const standard_startfile_prefix_1
1580 = STANDARD_STARTFILE_PREFIX_1;
1581 static const char *const standard_startfile_prefix_2
1582 = STANDARD_STARTFILE_PREFIX_2;
1584 /* A relative path to be used in finding the location of tools
1585 relative to the driver. */
1586 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1588 /* Subdirectory to use for locating libraries. Set by
1589 set_multilib_dir based on the compilation options. */
1591 static const char *multilib_dir;
1593 /* Subdirectory to use for locating libraries in OS conventions. Set by
1594 set_multilib_dir based on the compilation options. */
1596 static const char *multilib_os_dir;
1598 /* Structure to keep track of the specs that have been defined so far.
1599 These are accessed using %(specname) or %[specname] in a compiler
1604 /* The following 2 fields must be first */
1605 /* to allow EXTRA_SPECS to be initialized */
1606 const char *name; /* name of the spec. */
1607 const char *ptr; /* available ptr if no static pointer */
1609 /* The following fields are not initialized */
1610 /* by EXTRA_SPECS */
1611 const char **ptr_spec; /* pointer to the spec itself. */
1612 struct spec_list *next; /* Next spec in linked list. */
1613 int name_len; /* length of the name */
1614 int alloc_p; /* whether string was allocated */
1617 #define INIT_STATIC_SPEC(NAME,PTR) \
1618 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1620 /* List of statically defined specs. */
1621 static struct spec_list static_specs[] =
1623 INIT_STATIC_SPEC ("asm", &asm_spec),
1624 INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1625 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1626 INIT_STATIC_SPEC ("asm_options", &asm_options),
1627 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1628 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1629 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1630 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options),
1631 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options),
1632 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1633 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1634 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1635 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1636 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec),
1637 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec),
1638 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1639 INIT_STATIC_SPEC ("link", &link_spec),
1640 INIT_STATIC_SPEC ("lib", &lib_spec),
1641 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec),
1642 INIT_STATIC_SPEC ("mflib", &mflib_spec),
1643 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec),
1644 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1645 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1646 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1647 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1648 INIT_STATIC_SPEC ("version", &compiler_version),
1649 INIT_STATIC_SPEC ("multilib", &multilib_select),
1650 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1651 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1652 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1653 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1654 INIT_STATIC_SPEC ("multilib_options", &multilib_options),
1655 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1656 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1657 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1658 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1659 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1660 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
1661 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec),
1662 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
1663 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
1666 #ifdef EXTRA_SPECS /* additional specs needed */
1667 /* Structure to keep track of just the first two args of a spec_list.
1668 That is all that the EXTRA_SPECS macro gives us. */
1671 const char *const name;
1672 const char *const ptr;
1675 static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1676 static struct spec_list *extra_specs = (struct spec_list *) 0;
1679 /* List of dynamically allocates specs that have been defined so far. */
1681 static struct spec_list *specs = (struct spec_list *) 0;
1683 /* List of static spec functions. */
1685 static const struct spec_function static_spec_functions[] =
1687 { "getenv", getenv_spec_function },
1688 { "if-exists", if_exists_spec_function },
1689 { "if-exists-else", if_exists_else_spec_function },
1690 { "replace-outfile", replace_outfile_spec_function },
1691 { "version-compare", version_compare_spec_function },
1692 { "include", include_spec_function },
1693 { "print-asm-header", print_asm_header_spec_function },
1694 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function },
1695 { "compare-debug-self-opt", compare_debug_self_opt_spec_function },
1696 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function },
1697 #ifdef EXTRA_SPEC_FUNCTIONS
1698 EXTRA_SPEC_FUNCTIONS
1703 static int processing_spec_function;
1705 /* Add appropriate libgcc specs to OBSTACK, taking into account
1706 various permutations of -shared-libgcc, -shared, and such. */
1708 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1710 #ifndef USE_LD_AS_NEEDED
1711 #define USE_LD_AS_NEEDED 0
1715 init_gcc_specs (struct obstack *obstack, const char *shared_name,
1716 const char *static_name, const char *eh_name)
1720 buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}"
1721 "%{!static:%{!static-libgcc:"
1722 #if USE_LD_AS_NEEDED
1723 "%{!shared-libgcc:",
1724 static_name, " --as-needed ", shared_name, " --no-as-needed"
1727 shared_name, "%{!shared: ", static_name, "}"
1731 "%{!shared-libgcc:", static_name, " ", eh_name, "}"
1732 "%{shared-libgcc:", shared_name, " ", static_name, "}"
1736 "%{shared-libgcc:", shared_name, "}"
1737 "%{!shared-libgcc:", static_name, "}"
1740 "%{shared:", shared_name, "}"
1745 obstack_grow (obstack, buf, strlen (buf));
1748 #endif /* ENABLE_SHARED_LIBGCC */
1750 /* Initialize the specs lookup routines. */
1755 struct spec_list *next = (struct spec_list *) 0;
1756 struct spec_list *sl = (struct spec_list *) 0;
1760 return; /* Already initialized. */
1763 notice ("Using built-in specs.\n");
1766 extra_specs = XCNEWVEC (struct spec_list, ARRAY_SIZE (extra_specs_1));
1768 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1770 sl = &extra_specs[i];
1771 sl->name = extra_specs_1[i].name;
1772 sl->ptr = extra_specs_1[i].ptr;
1774 sl->name_len = strlen (sl->name);
1775 sl->ptr_spec = &sl->ptr;
1780 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1782 sl = &static_specs[i];
1787 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1788 /* ??? If neither -shared-libgcc nor --static-libgcc was
1789 seen, then we should be making an educated guess. Some proposed
1790 heuristics for ELF include:
1792 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1793 program will be doing dynamic loading, which will likely
1794 need the shared libgcc.
1796 (2) If "-ldl", then it's also a fair bet that we're doing
1799 (3) For each ET_DYN we're linking against (either through -lfoo
1800 or /some/path/foo.so), check to see whether it or one of
1801 its dependencies depends on a shared libgcc.
1805 If the runtime is fixed to look for program headers instead
1806 of calling __register_frame_info at all, for each object,
1807 use the shared libgcc if any EH symbol referenced.
1809 If crtstuff is fixed to not invoke __register_frame_info
1810 automatically, for each object, use the shared libgcc if
1811 any non-empty unwind section found.
1813 Doing any of this probably requires invoking an external program to
1814 do the actual object file scanning. */
1816 const char *p = libgcc_spec;
1819 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1820 when given the proper command line arguments. */
1823 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1825 init_gcc_specs (&obstack,
1827 #ifdef USE_LIBUNWIND_EXCEPTIONS
1833 #ifdef USE_LIBUNWIND_EXCEPTIONS
1834 # ifdef HAVE_LD_STATIC_DYNAMIC
1835 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1845 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1847 /* Ug. We don't know shared library extensions. Hope that
1848 systems that use this form don't do shared libraries. */
1849 init_gcc_specs (&obstack,
1853 #ifdef USE_LIBUNWIND_EXCEPTIONS
1862 obstack_1grow (&obstack, *p);
1863 in_sep = (*p == ' ');
1868 obstack_1grow (&obstack, '\0');
1869 libgcc_spec = XOBFINISH (&obstack, const char *);
1872 #ifdef USE_AS_TRADITIONAL_FORMAT
1873 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1875 static const char tf[] = "--traditional-format ";
1876 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1877 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1878 asm_spec = XOBFINISH (&obstack, const char *);
1882 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1883 # ifdef LINK_BUILDID_SPEC
1884 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1885 obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof(LINK_BUILDID_SPEC) - 1);
1887 # ifdef LINK_EH_SPEC
1888 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1889 obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
1891 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
1892 link_spec = XOBFINISH (&obstack, const char *);
1898 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1899 removed; If the spec starts with a + then SPEC is added to the end of the
1903 set_spec (const char *name, const char *spec)
1905 struct spec_list *sl;
1906 const char *old_spec;
1907 int name_len = strlen (name);
1910 /* If this is the first call, initialize the statically allocated specs. */
1913 struct spec_list *next = (struct spec_list *) 0;
1914 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1916 sl = &static_specs[i];
1923 /* See if the spec already exists. */
1924 for (sl = specs; sl; sl = sl->next)
1925 if (name_len == sl->name_len && !strcmp (sl->name, name))
1930 /* Not found - make it. */
1931 sl = XNEW (struct spec_list);
1932 sl->name = xstrdup (name);
1933 sl->name_len = name_len;
1934 sl->ptr_spec = &sl->ptr;
1936 *(sl->ptr_spec) = "";
1941 old_spec = *(sl->ptr_spec);
1942 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1943 ? concat (old_spec, spec + 1, NULL)
1948 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1951 /* Free the old spec. */
1952 if (old_spec && sl->alloc_p)
1953 free (CONST_CAST(char *, old_spec));
1958 /* Accumulate a command (program name and args), and run it. */
1960 /* Vector of pointers to arguments in the current line of specifications. */
1962 static const char **argbuf;
1964 /* Number of elements allocated in argbuf. */
1966 static int argbuf_length;
1968 /* Number of elements in argbuf currently in use (containing args). */
1970 static int argbuf_index;
1972 /* Position in the argbuf array containing the name of the output file
1973 (the value associated with the "-o" flag). */
1975 static int have_o_argbuf_index = 0;
1977 /* Were the options -c or -S passed. */
1978 static int have_c = 0;
1980 /* Was the option -o passed. */
1981 static int have_o = 0;
1983 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1984 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1987 static struct temp_name {
1988 const char *suffix; /* suffix associated with the code. */
1989 int length; /* strlen (suffix). */
1990 int unique; /* Indicates whether %g or %u/%U was used. */
1991 const char *filename; /* associated filename. */
1992 int filename_length; /* strlen (filename). */
1993 struct temp_name *next;
1996 /* Number of commands executed so far. */
1998 static int execution_count;
2000 /* Number of commands that exited with a signal. */
2002 static int signal_count;
2004 /* Name with which this program was invoked. */
2006 static const char *programname;
2008 /* Allocate the argument vector. */
2014 argbuf = XNEWVEC (const char *, argbuf_length);
2017 /* Clear out the vector of arguments (after a command is executed). */
2025 /* Add one argument to the vector at the end.
2026 This is done when a space is seen or at the end of the line.
2027 If DELETE_ALWAYS is nonzero, the arg is a filename
2028 and the file should be deleted eventually.
2029 If DELETE_FAILURE is nonzero, the arg is a filename
2030 and the file should be deleted if this compilation fails. */
2033 store_arg (const char *arg, int delete_always, int delete_failure)
2035 if (argbuf_index + 1 == argbuf_length)
2036 argbuf = XRESIZEVEC (const char *, argbuf, (argbuf_length *= 2));
2038 argbuf[argbuf_index++] = arg;
2039 argbuf[argbuf_index] = 0;
2041 if (strcmp (arg, "-o") == 0)
2042 have_o_argbuf_index = argbuf_index;
2043 if (delete_always || delete_failure)
2044 record_temp_file (arg, delete_always, delete_failure);
2047 /* Load specs from a file name named FILENAME, replacing occurrences of
2048 various different types of line-endings, \r\n, \n\r and just \r, with
2052 load_specs (const char *filename)
2056 struct stat statbuf;
2063 notice ("Reading specs from %s\n", filename);
2065 /* Open and stat the file. */
2066 desc = open (filename, O_RDONLY, 0);
2068 pfatal_with_name (filename);
2069 if (stat (filename, &statbuf) < 0)
2070 pfatal_with_name (filename);
2072 /* Read contents of file into BUFFER. */
2073 buffer = XNEWVEC (char, statbuf.st_size + 1);
2074 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
2076 pfatal_with_name (filename);
2077 buffer[readlen] = 0;
2080 specs = XNEWVEC (char, readlen + 1);
2082 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
2088 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
2090 else if (*(buffer_p + 1) == '\n') /* \r\n */
2104 /* Read compilation specs from a file named FILENAME,
2105 replacing the default ones.
2107 A suffix which starts with `*' is a definition for
2108 one of the machine-specific sub-specs. The "suffix" should be
2109 *asm, *cc1, *cpp, *link, *startfile, etc.
2110 The corresponding spec is stored in asm_spec, etc.,
2111 rather than in the `compilers' vector.
2113 Anything invalid in the file is a fatal error. */
2116 read_specs (const char *filename, int main_p)
2121 buffer = load_specs (filename);
2123 /* Scan BUFFER for specs, putting them in the vector. */
2129 char *in, *out, *p1, *p2, *p3;
2131 /* Advance P in BUFFER to the next nonblank nocomment line. */
2132 p = skip_whitespace (p);
2136 /* Is this a special command that starts with '%'? */
2137 /* Don't allow this for the main specs file, since it would
2138 encourage people to overwrite it. */
2139 if (*p == '%' && !main_p)
2142 while (*p && *p != '\n')
2148 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
2149 && (p1[sizeof "%include" - 1] == ' '
2150 || p1[sizeof "%include" - 1] == '\t'))
2154 p1 += sizeof ("%include");
2155 while (*p1 == ' ' || *p1 == '\t')
2158 if (*p1++ != '<' || p[-2] != '>')
2159 fatal ("specs %%include syntax malformed after %ld characters",
2160 (long) (p1 - buffer + 1));
2163 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2164 read_specs (new_filename ? new_filename : p1, FALSE);
2167 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
2168 && (p1[sizeof "%include_noerr" - 1] == ' '
2169 || p1[sizeof "%include_noerr" - 1] == '\t'))
2173 p1 += sizeof "%include_noerr";
2174 while (*p1 == ' ' || *p1 == '\t')
2177 if (*p1++ != '<' || p[-2] != '>')
2178 fatal ("specs %%include syntax malformed after %ld characters",
2179 (long) (p1 - buffer + 1));
2182 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2184 read_specs (new_filename, FALSE);
2185 else if (verbose_flag)
2186 notice ("could not find specs file %s\n", p1);
2189 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
2190 && (p1[sizeof "%rename" - 1] == ' '
2191 || p1[sizeof "%rename" - 1] == '\t'))
2194 struct spec_list *sl;
2195 struct spec_list *newsl;
2197 /* Get original name. */
2198 p1 += sizeof "%rename";
2199 while (*p1 == ' ' || *p1 == '\t')
2202 if (! ISALPHA ((unsigned char) *p1))
2203 fatal ("specs %%rename syntax malformed after %ld characters",
2204 (long) (p1 - buffer));
2207 while (*p2 && !ISSPACE ((unsigned char) *p2))
2210 if (*p2 != ' ' && *p2 != '\t')
2211 fatal ("specs %%rename syntax malformed after %ld characters",
2212 (long) (p2 - buffer));
2216 while (*p2 == ' ' || *p2 == '\t')
2219 if (! ISALPHA ((unsigned char) *p2))
2220 fatal ("specs %%rename syntax malformed after %ld characters",
2221 (long) (p2 - buffer));
2223 /* Get new spec name. */
2225 while (*p3 && !ISSPACE ((unsigned char) *p3))
2229 fatal ("specs %%rename syntax malformed after %ld characters",
2230 (long) (p3 - buffer));
2233 for (sl = specs; sl; sl = sl->next)
2234 if (name_len == sl->name_len && !strcmp (sl->name, p1))
2238 fatal ("specs %s spec was not found to be renamed", p1);
2240 if (strcmp (p1, p2) == 0)
2243 for (newsl = specs; newsl; newsl = newsl->next)
2244 if (strcmp (newsl->name, p2) == 0)
2245 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2250 notice ("rename spec %s to %s\n", p1, p2);
2252 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
2256 set_spec (p2, *(sl->ptr_spec));
2258 free (CONST_CAST (char *, *(sl->ptr_spec)));
2260 *(sl->ptr_spec) = "";
2265 fatal ("specs unknown %% command after %ld characters",
2266 (long) (p1 - buffer));
2269 /* Find the colon that should end the suffix. */
2271 while (*p1 && *p1 != ':' && *p1 != '\n')
2274 /* The colon shouldn't be missing. */
2276 fatal ("specs file malformed after %ld characters",
2277 (long) (p1 - buffer));
2279 /* Skip back over trailing whitespace. */
2281 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
2284 /* Copy the suffix to a string. */
2285 suffix = save_string (p, p2 - p);
2286 /* Find the next line. */
2287 p = skip_whitespace (p1 + 1);
2289 fatal ("specs file malformed after %ld characters",
2290 (long) (p - buffer));
2293 /* Find next blank line or end of string. */
2294 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
2297 /* Specs end at the blank line and do not include the newline. */
2298 spec = save_string (p, p1 - p);
2301 /* Delete backslash-newline sequences from the spec. */
2306 if (in[0] == '\\' && in[1] == '\n')
2308 else if (in[0] == '#')
2309 while (*in && *in != '\n')
2317 if (suffix[0] == '*')
2319 if (! strcmp (suffix, "*link_command"))
2320 link_command_spec = spec;
2322 set_spec (suffix + 1, spec);
2326 /* Add this pair to the vector. */
2328 = XRESIZEVEC (struct compiler, compilers, n_compilers + 2);
2330 compilers[n_compilers].suffix = suffix;
2331 compilers[n_compilers].spec = spec;
2333 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
2337 link_command_spec = spec;
2340 if (link_command_spec == 0)
2341 fatal ("spec file has no spec for linking");
2344 /* Record the names of temporary files we tell compilers to write,
2345 and delete them at the end of the run. */
2347 /* This is the common prefix we use to make temp file names.
2348 It is chosen once for each run of this program.
2349 It is substituted into a spec by %g or %j.
2350 Thus, all temp file names contain this prefix.
2351 In practice, all temp file names start with this prefix.
2353 This prefix comes from the envvar TMPDIR if it is defined;
2354 otherwise, from the P_tmpdir macro if that is defined;
2355 otherwise, in /usr/tmp or /tmp;
2356 or finally the current directory if all else fails. */
2358 static const char *temp_filename;
2360 /* Length of the prefix. */
2362 static int temp_filename_length;
2364 /* Define the list of temporary files to delete. */
2369 struct temp_file *next;
2372 /* Queue of files to delete on success or failure of compilation. */
2373 static struct temp_file *always_delete_queue;
2374 /* Queue of files to delete on failure of compilation. */
2375 static struct temp_file *failure_delete_queue;
2377 /* Record FILENAME as a file to be deleted automatically.
2378 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2379 otherwise delete it in any case.
2380 FAIL_DELETE nonzero means delete it if a compilation step fails;
2381 otherwise delete it in any case. */
2384 record_temp_file (const char *filename, int always_delete, int fail_delete)
2386 char *const name = xstrdup (filename);
2390 struct temp_file *temp;
2391 for (temp = always_delete_queue; temp; temp = temp->next)
2392 if (! strcmp (name, temp->name))
2395 temp = XNEW (struct temp_file);
2396 temp->next = always_delete_queue;
2398 always_delete_queue = temp;
2405 struct temp_file *temp;
2406 for (temp = failure_delete_queue; temp; temp = temp->next)
2407 if (! strcmp (name, temp->name))
2410 temp = XNEW (struct temp_file);
2411 temp->next = failure_delete_queue;
2413 failure_delete_queue = temp;
2419 /* Delete all the temporary files whose names we previously recorded. */
2421 #ifndef DELETE_IF_ORDINARY
2422 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2425 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2426 if (unlink (NAME) < 0) \
2428 perror_with_name (NAME); \
2433 delete_if_ordinary (const char *name)
2439 printf ("Delete %s? (y or n) ", name);
2443 while ((c = getchar ()) != '\n' && c != EOF)
2446 if (i == 'y' || i == 'Y')
2448 DELETE_IF_ORDINARY (name, st, verbose_flag);
2452 delete_temp_files (void)
2454 struct temp_file *temp;
2456 for (temp = always_delete_queue; temp; temp = temp->next)
2457 delete_if_ordinary (temp->name);
2458 always_delete_queue = 0;
2461 /* Delete all the files to be deleted on error. */
2464 delete_failure_queue (void)
2466 struct temp_file *temp;
2468 for (temp = failure_delete_queue; temp; temp = temp->next)
2469 delete_if_ordinary (temp->name);
2473 clear_failure_queue (void)
2475 failure_delete_queue = 0;
2478 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2480 If DO_MULTI is true iterate over the paths twice, first with multilib
2481 suffix then without, otherwise iterate over the paths once without
2482 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2483 to avoid visiting the same path twice, but we could do better. For
2484 instance, /usr/lib/../lib is considered different from /usr/lib.
2485 At least EXTRA_SPACE chars past the end of the path passed to
2486 CALLBACK are available for use by the callback.
2487 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2489 Returns the value returned by CALLBACK. */
2492 for_each_path (const struct path_prefix *paths,
2495 void *(*callback) (char *, void *),
2496 void *callback_info)
2498 struct prefix_list *pl;
2499 const char *multi_dir = NULL;
2500 const char *multi_os_dir = NULL;
2501 const char *multi_suffix;
2502 const char *just_multi_suffix;
2505 bool skip_multi_dir = false;
2506 bool skip_multi_os_dir = false;
2508 multi_suffix = machine_suffix;
2509 just_multi_suffix = just_machine_suffix;
2510 if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0)
2512 multi_dir = concat (multilib_dir, dir_separator_str, NULL);
2513 multi_suffix = concat (multi_suffix, multi_dir, NULL);
2514 just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL);
2516 if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0)
2517 multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL);
2521 size_t multi_dir_len = 0;
2522 size_t multi_os_dir_len = 0;
2524 size_t just_suffix_len;
2528 multi_dir_len = strlen (multi_dir);
2530 multi_os_dir_len = strlen (multi_os_dir);
2531 suffix_len = strlen (multi_suffix);
2532 just_suffix_len = strlen (just_multi_suffix);
2536 len = paths->max_len + extra_space + 1;
2537 if (suffix_len > multi_os_dir_len)
2540 len += multi_os_dir_len;
2541 path = XNEWVEC (char, len);
2544 for (pl = paths->plist; pl != 0; pl = pl->next)
2546 len = strlen (pl->prefix);
2547 memcpy (path, pl->prefix, len);
2549 /* Look first in MACHINE/VERSION subdirectory. */
2550 if (!skip_multi_dir)
2552 memcpy (path + len, multi_suffix, suffix_len + 1);
2553 ret = callback (path, callback_info);
2558 /* Some paths are tried with just the machine (ie. target)
2559 subdir. This is used for finding as, ld, etc. */
2561 && pl->require_machine_suffix == 2)
2563 memcpy (path + len, just_multi_suffix, just_suffix_len + 1);
2564 ret = callback (path, callback_info);
2569 /* Now try the base path. */
2570 if (!pl->require_machine_suffix
2571 && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir))
2573 const char *this_multi;
2574 size_t this_multi_len;
2576 if (pl->os_multilib)
2578 this_multi = multi_os_dir;
2579 this_multi_len = multi_os_dir_len;
2583 this_multi = multi_dir;
2584 this_multi_len = multi_dir_len;
2588 memcpy (path + len, this_multi, this_multi_len + 1);
2592 ret = callback (path, callback_info);
2600 if (multi_dir == NULL && multi_os_dir == NULL)
2603 /* Run through the paths again, this time without multilibs.
2604 Don't repeat any we have already seen. */
2607 free (CONST_CAST (char *, multi_dir));
2609 free (CONST_CAST (char *, multi_suffix));
2610 multi_suffix = machine_suffix;
2611 free (CONST_CAST (char *, just_multi_suffix));
2612 just_multi_suffix = just_machine_suffix;
2615 skip_multi_dir = true;
2618 free (CONST_CAST (char *, multi_os_dir));
2619 multi_os_dir = NULL;
2622 skip_multi_os_dir = true;
2627 free (CONST_CAST (char *, multi_dir));
2628 free (CONST_CAST (char *, multi_suffix));
2629 free (CONST_CAST (char *, just_multi_suffix));
2632 free (CONST_CAST (char *, multi_os_dir));
2638 /* Callback for build_search_list. Adds path to obstack being built. */
2640 struct add_to_obstack_info {
2647 add_to_obstack (char *path, void *data)
2649 struct add_to_obstack_info *info = (struct add_to_obstack_info *) data;
2651 if (info->check_dir && !is_directory (path, false))
2654 if (!info->first_time)
2655 obstack_1grow (info->ob, PATH_SEPARATOR);
2657 obstack_grow (info->ob, path, strlen (path));
2659 info->first_time = false;
2663 /* Add or change the value of an environment variable, outputting the
2664 change to standard error if in verbose mode. */
2666 xputenv (const char *string)
2669 notice ("%s\n", string);
2670 putenv (CONST_CAST (char *, string));
2673 /* Build a list of search directories from PATHS.
2674 PREFIX is a string to prepend to the list.
2675 If CHECK_DIR_P is true we ensure the directory exists.
2676 If DO_MULTI is true, multilib paths are output first, then
2678 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2679 It is also used by the --print-search-dirs flag. */
2682 build_search_list (const struct path_prefix *paths, const char *prefix,
2683 bool check_dir, bool do_multi)
2685 struct add_to_obstack_info info;
2687 info.ob = &collect_obstack;
2688 info.check_dir = check_dir;
2689 info.first_time = true;
2691 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2692 obstack_1grow (&collect_obstack, '=');
2694 for_each_path (paths, do_multi, 0, add_to_obstack, &info);
2696 obstack_1grow (&collect_obstack, '\0');
2697 return XOBFINISH (&collect_obstack, char *);
2700 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2704 putenv_from_prefixes (const struct path_prefix *paths, const char *env_var,
2707 xputenv (build_search_list (paths, env_var, true, do_multi));
2710 /* Check whether NAME can be accessed in MODE. This is like access,
2711 except that it never considers directories to be executable. */
2714 access_check (const char *name, int mode)
2720 if (stat (name, &st) < 0
2721 || S_ISDIR (st.st_mode))
2725 return access (name, mode);
2728 /* Callback for find_a_file. Appends the file name to the directory
2729 path. If the resulting file exists in the right mode, return the
2730 full pathname to the file. */
2732 struct file_at_path_info {
2741 file_at_path (char *path, void *data)
2743 struct file_at_path_info *info = (struct file_at_path_info *) data;
2744 size_t len = strlen (path);
2746 memcpy (path + len, info->name, info->name_len);
2747 len += info->name_len;
2749 /* Some systems have a suffix for executable files.
2750 So try appending that first. */
2751 if (info->suffix_len)
2753 memcpy (path + len, info->suffix, info->suffix_len + 1);
2754 if (access_check (path, info->mode) == 0)
2759 if (access_check (path, info->mode) == 0)
2765 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2766 access to check permissions. If DO_MULTI is true, search multilib
2767 paths then non-multilib paths, otherwise do not search multilib paths.
2768 Return 0 if not found, otherwise return its name, allocated with malloc. */
2771 find_a_file (const struct path_prefix *pprefix, const char *name, int mode,
2774 struct file_at_path_info info;
2776 #ifdef DEFAULT_ASSEMBLER
2777 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2778 return xstrdup (DEFAULT_ASSEMBLER);
2781 #ifdef DEFAULT_LINKER
2782 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2783 return xstrdup (DEFAULT_LINKER);
2786 /* Determine the filename to execute (special case for absolute paths). */
2788 if (IS_ABSOLUTE_PATH (name))
2790 if (access (name, mode) == 0)
2791 return xstrdup (name);
2797 info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "";
2798 info.name_len = strlen (info.name);
2799 info.suffix_len = strlen (info.suffix);
2802 return (char*) for_each_path (pprefix, do_multi,
2803 info.name_len + info.suffix_len,
2804 file_at_path, &info);
2807 /* Ranking of prefixes in the sort list. -B prefixes are put before
2810 enum path_prefix_priority
2812 PREFIX_PRIORITY_B_OPT,
2813 PREFIX_PRIORITY_LAST
2816 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2817 order according to PRIORITY. Within each PRIORITY, new entries are
2820 If WARN is nonzero, we will warn if no file is found
2821 through this prefix. WARN should point to an int
2822 which will be set to 1 if this entry is used.
2824 COMPONENT is the value to be passed to update_path.
2826 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2827 the complete value of machine_suffix.
2828 2 means try both machine_suffix and just_machine_suffix. */
2831 add_prefix (struct path_prefix *pprefix, const char *prefix,
2832 const char *component, /* enum prefix_priority */ int priority,
2833 int require_machine_suffix, int os_multilib)
2835 struct prefix_list *pl, **prev;
2838 for (prev = &pprefix->plist;
2839 (*prev) != NULL && (*prev)->priority <= priority;
2840 prev = &(*prev)->next)
2843 /* Keep track of the longest prefix. */
2845 prefix = update_path (prefix, component);
2846 len = strlen (prefix);
2847 if (len > pprefix->max_len)
2848 pprefix->max_len = len;
2850 pl = XNEW (struct prefix_list);
2851 pl->prefix = prefix;
2852 pl->require_machine_suffix = require_machine_suffix;
2853 pl->priority = priority;
2854 pl->os_multilib = os_multilib;
2856 /* Insert after PREV. */
2861 /* Same as add_prefix, but prepending target_system_root to prefix. */
2862 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2864 add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
2865 const char *component,
2866 /* enum prefix_priority */ int priority,
2867 int require_machine_suffix, int os_multilib)
2869 if (!IS_ABSOLUTE_PATH (prefix))
2870 fatal ("system path '%s' is not absolute", prefix);
2872 if (target_system_root)
2874 if (target_sysroot_suffix)
2875 prefix = concat (target_sysroot_suffix, prefix, NULL);
2876 prefix = concat (target_system_root, prefix, NULL);
2878 /* We have to override this because GCC's notion of sysroot
2879 moves along with GCC. */
2883 add_prefix (pprefix, prefix, component, priority,
2884 require_machine_suffix, os_multilib);
2887 /* Execute the command specified by the arguments on the current line of spec.
2888 When using pipes, this includes several piped-together commands
2889 with `|' between them.
2891 Return 0 if successful, -1 if failed. */
2897 int n_commands; /* # of command. */
2899 struct pex_obj *pex;
2902 const char *prog; /* program name. */
2903 const char **argv; /* vector of args. */
2906 struct command *commands; /* each command buffer with above info. */
2908 gcc_assert (!processing_spec_function);
2912 string = find_a_file (&exec_prefixes, argbuf[0], X_OK, false);
2913 argbuf[0] = (string) ? string : argbuf[0];
2914 insert_wrapper (wrapper_string);
2917 /* Count # of piped commands. */
2918 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2919 if (strcmp (argbuf[i], "|") == 0)
2922 /* Get storage for each command. */
2923 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2925 /* Split argbuf into its separate piped processes,
2926 and record info about each one.
2927 Also search for the programs that are to be run. */
2929 commands[0].prog = argbuf[0]; /* first command. */
2930 commands[0].argv = &argbuf[0];
2932 if (!wrapper_string)
2934 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false);
2935 commands[0].argv[0] = (string) ? string : commands[0].argv[0];
2938 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2939 if (strcmp (argbuf[i], "|") == 0)
2940 { /* each command. */
2941 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2942 fatal ("-pipe not supported");
2944 argbuf[i] = 0; /* termination of command args. */
2945 commands[n_commands].prog = argbuf[i + 1];
2946 commands[n_commands].argv = &argbuf[i + 1];
2947 string = find_a_file (&exec_prefixes, commands[n_commands].prog,
2950 commands[n_commands].argv[0] = string;
2954 argbuf[argbuf_index] = 0;
2956 /* If -v, print what we are about to do, and maybe query. */
2960 /* For help listings, put a blank line between sub-processes. */
2961 if (print_help_list)
2962 fputc ('\n', stderr);
2964 /* Print each piped command as a separate line. */
2965 for (i = 0; i < n_commands; i++)
2967 const char *const *j;
2969 if (verbose_only_flag)
2971 for (j = commands[i].argv; *j; j++)
2974 fprintf (stderr, " \"");
2975 for (p = *j; *p; ++p)
2977 if (*p == '"' || *p == '\\' || *p == '$')
2978 fputc ('\\', stderr);
2981 fputc ('"', stderr);
2985 for (j = commands[i].argv; *j; j++)
2986 fprintf (stderr, " %s", *j);
2988 /* Print a pipe symbol after all but the last command. */
2989 if (i + 1 != n_commands)
2990 fprintf (stderr, " |");
2991 fprintf (stderr, "\n");
2994 if (verbose_only_flag != 0)
2996 /* verbose_only_flag should act as if the spec was
2997 executed, so increment execution_count before
2998 returning. This prevents spurious warnings about
2999 unused linker input files, etc. */
3004 notice ("\nGo ahead? (y or n) ");
3008 while (getchar () != '\n')
3011 if (i != 'y' && i != 'Y')
3016 #ifdef ENABLE_VALGRIND_CHECKING
3017 /* Run the each command through valgrind. To simplify prepending the
3018 path to valgrind and the option "-q" (for quiet operation unless
3019 something triggers), we allocate a separate argv array. */
3021 for (i = 0; i < n_commands; i++)
3027 for (argc = 0; commands[i].argv[argc] != NULL; argc++)
3030 argv = XALLOCAVEC (const char *, argc + 3);
3032 argv[0] = VALGRIND_PATH;
3034 for (j = 2; j < argc + 2; j++)
3035 argv[j] = commands[i].argv[j - 2];
3038 commands[i].argv = argv;
3039 commands[i].prog = argv[0];
3043 /* Run each piped subprocess. */
3045 pex = pex_init (PEX_USE_PIPES | ((report_times || report_times_to_file)
3046 ? PEX_RECORD_TIMES : 0),
3047 programname, temp_filename);
3049 pfatal_with_name (_("pex_init failed"));
3051 for (i = 0; i < n_commands; i++)
3055 const char *string = commands[i].argv[0];
3057 errmsg = pex_run (pex,
3058 ((i + 1 == n_commands ? PEX_LAST : 0)
3059 | (string == commands[i].prog ? PEX_SEARCH : 0)),
3060 string, CONST_CAST (char **, commands[i].argv),
3069 pfatal_with_name (errmsg);
3073 if (string != commands[i].prog)
3074 free (CONST_CAST (char *, string));
3079 /* Wait for all the subprocesses to finish. */
3083 struct pex_time *times = NULL;
3086 statuses = (int *) alloca (n_commands * sizeof (int));
3087 if (!pex_get_status (pex, n_commands, statuses))
3088 pfatal_with_name (_("failed to get exit status"));
3090 if (report_times || report_times_to_file)
3092 times = (struct pex_time *) alloca (n_commands * sizeof (struct pex_time));
3093 if (!pex_get_times (pex, n_commands, times))
3094 pfatal_with_name (_("failed to get process times"));
3099 for (i = 0; i < n_commands; ++i)
3101 int status = statuses[i];
3103 if (WIFSIGNALED (status))
3106 /* SIGPIPE is a special case. It happens in -pipe mode
3107 when the compiler dies before the preprocessor is done,
3108 or the assembler dies before the compiler is done.
3109 There's generally been an error already, and this is
3110 just fallout. So don't generate another error unless
3111 we would otherwise have succeeded. */
3112 if (WTERMSIG (status) == SIGPIPE
3113 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
3121 Internal error: %s (program %s)\n\
3122 Please submit a full bug report.\n\
3123 See %s for instructions.",
3124 strsignal (WTERMSIG (status)), commands[i].prog,
3127 else if (WIFEXITED (status)
3128 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
3130 if (WEXITSTATUS (status) > greatest_status)
3131 greatest_status = WEXITSTATUS (status);
3135 if (report_times || report_times_to_file)
3137 struct pex_time *pt = ×[i];
3140 ut = ((double) pt->user_seconds
3141 + (double) pt->user_microseconds / 1.0e6);
3142 st = ((double) pt->system_seconds
3143 + (double) pt->system_microseconds / 1.0e6);
3148 notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
3150 if (report_times_to_file)
3153 const char *const *j;
3155 fprintf (report_times_to_file, "%g %g", ut, st);
3157 for (j = &commands[i].prog; *j; j = &commands[i].argv[++c])
3160 for (p = *j; *p; ++p)
3161 if (*p == '"' || *p == '\\' || *p == '$'
3167 fprintf (report_times_to_file, " \"");
3168 for (p = *j; *p; ++p)
3170 if (*p == '"' || *p == '\\' || *p == '$')
3171 fputc ('\\', report_times_to_file);
3172 fputc (*p, report_times_to_file);
3174 fputc ('"', report_times_to_file);
3177 fprintf (report_times_to_file, " %s", *j);
3180 fputc ('\n', report_times_to_file);
3190 /* Find all the switches given to us
3191 and make a vector describing them.
3192 The elements of the vector are strings, one per switch given.
3193 If a switch uses following arguments, then the `part1' field
3194 is the switch itself and the `args' field
3195 is a null-terminated vector containing the following arguments.
3196 Bits in the `live_cond' field are:
3197 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3198 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3199 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3200 The `validated' field is nonzero if any spec has looked at this switch;
3201 if it remains zero at the end of the run, it must be meaningless. */
3203 #define SWITCH_LIVE 0x1
3204 #define SWITCH_FALSE 0x2
3205 #define SWITCH_IGNORE 0x4
3211 unsigned int live_cond;
3212 unsigned char validated;
3213 unsigned char ordering;
3216 static struct switchstr *switches;
3218 static int n_switches;
3220 /* Set to zero if -fcompare-debug is disabled, positive if it's
3221 enabled and we're running the first compilation, negative if it's
3222 enabled and we're running the second compilation. For most of the
3223 time, it's in the range -1..1, but it can be temporarily set to 2
3224 or 3 to indicate that the -fcompare-debug flags didn't come from
3225 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3226 variable, until a synthesized -fcompare-debug flag is added to the
3230 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3231 int compare_debug_second;
3233 /* Set to the flags that should be passed to the second compilation in
3234 a -fcompare-debug compilation. */
3235 const char *compare_debug_opt;
3237 static struct switchstr *switches_debug_check[2];
3239 static int n_switches_debug_check[2];
3241 static char *debug_check_temp_file[2];
3243 /* Language is one of three things:
3245 1) The name of a real programming language.
3246 2) NULL, indicating that no one has figured out
3248 3) '*', indicating that the file should be passed
3253 const char *language;
3254 struct compiler *incompiler;
3259 /* Also a vector of input files specified. */
3261 static struct infile *infiles;
3265 /* True if multiple input files are being compiled to a single
3268 static bool combine_inputs;
3270 /* This counts the number of libraries added by lang_specific_driver, so that
3271 we can tell if there were any user supplied any files or libraries. */
3273 static int added_libraries;
3275 /* And a vector of corresponding output files is made up later. */
3277 const char **outfiles;
3279 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3281 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3282 is true if we should look for an executable suffix. DO_OBJ
3283 is true if we should look for an object suffix. */
3286 convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
3287 int do_obj ATTRIBUTE_UNUSED)
3289 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3297 len = strlen (name);
3299 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3300 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3301 if (do_obj && len > 2
3302 && name[len - 2] == '.'
3303 && name[len - 1] == 'o')
3305 obstack_grow (&obstack, name, len - 2);
3306 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
3307 name = XOBFINISH (&obstack, const char *);
3311 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3312 /* If there is no filetype, make it the executable suffix (which includes
3313 the "."). But don't get confused if we have just "-o". */
3314 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
3317 for (i = len - 1; i >= 0; i--)
3318 if (IS_DIR_SEPARATOR (name[i]))
3321 for (i++; i < len; i++)
3325 obstack_grow (&obstack, name, len);
3326 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
3327 strlen (TARGET_EXECUTABLE_SUFFIX));
3328 name = XOBFINISH (&obstack, const char *);
3335 /* Display the command line switches accepted by gcc. */
3339 printf (_("Usage: %s [options] file...\n"), programname);
3340 fputs (_("Options:\n"), stdout);
3342 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
3343 fputs (_(" --help Display this information\n"), stdout);
3344 fputs (_(" --target-help Display target specific command line options\n"), stdout);
3345 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout);
3346 fputs (_(" Display specific types of command line options\n"), stdout);
3348 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
3349 fputs (_(" --version Display compiler version information\n"), stdout);
3350 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
3351 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
3352 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
3353 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
3354 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
3355 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
3356 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
3357 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
3359 -print-multi-lib Display the mapping between command line options and\n\
3360 multiple library search directories\n"), stdout);
3361 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
3362 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout);
3363 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout);
3364 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
3365 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
3366 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
3367 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout);
3368 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout);
3369 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
3370 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout);
3371 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
3372 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout);
3374 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3375 prefixes to other gcc components\n"), stdout);
3376 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
3377 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
3378 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
3379 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
3381 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3382 and libraries\n"), stdout);
3383 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
3384 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
3385 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
3386 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
3387 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
3388 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3389 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3390 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3391 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3393 -x <language> Specify the language of the following input files\n\
3394 Permissible languages include: c c++ assembler none\n\
3395 'none' means revert to the default behavior of\n\
3396 guessing the language based on the file's extension\n\
3400 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3401 passed on to the various sub-processes invoked by %s. In order to pass\n\
3402 other options on to these processes the -W<letter> options must be used.\n\
3405 /* The rest of the options are displayed by invocations of the various
3410 add_preprocessor_option (const char *option, int len)
3412 n_preprocessor_options++;
3414 if (! preprocessor_options)
3415 preprocessor_options = XNEWVEC (char *, n_preprocessor_options);
3417 preprocessor_options = XRESIZEVEC (char *, preprocessor_options,
3418 n_preprocessor_options);
3420 preprocessor_options [n_preprocessor_options - 1] =
3421 save_string (option, len);
3425 add_assembler_option (const char *option, int len)
3427 n_assembler_options++;
3429 if (! assembler_options)
3430 assembler_options = XNEWVEC (char *, n_assembler_options);
3432 assembler_options = XRESIZEVEC (char *, assembler_options,
3433 n_assembler_options);
3435 assembler_options [n_assembler_options - 1] = save_string (option, len);
3439 add_linker_option (const char *option, int len)
3443 if (! linker_options)
3444 linker_options = XNEWVEC (char *, n_linker_options);
3446 linker_options = XRESIZEVEC (char *, linker_options, n_linker_options);
3448 linker_options [n_linker_options - 1] = save_string (option, len);
3451 /* Create the vector `switches' and its contents.
3452 Store its length in `n_switches'. */
3455 process_command (int argc, const char **argv)
3460 const char *spec_lang = 0;
3461 int last_language_n_infiles;
3462 int lang_n_infiles = 0;
3463 #ifdef MODIFY_TARGET_NAME
3464 int is_modify_target_name;
3467 const char *tooldir_prefix;
3468 char *(*get_relative_prefix) (const char *, const char *,
3469 const char *) = NULL;
3471 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3475 added_libraries = 0;
3477 /* Figure compiler version from version string. */
3479 compiler_version = temp1 = xstrdup (version_string);
3481 for (; *temp1; ++temp1)
3490 /* If there is a -V or -b option (or both), process it now, before
3491 trying to interpret the rest of the command line.
3492 Use heuristic that all configuration names must have at least
3493 one dash '-'. This allows us to pass options starting with -b. */
3494 if (argc > 1 && argv[1][0] == '-'
3495 && (argv[1][1] == 'V'
3496 || (argv[1][1] == 'b'
3497 && (argv[1][2] == '\0'
3498 || NULL != strchr (argv[1] + 2, '-')))))
3500 const char *new_version = DEFAULT_TARGET_VERSION;
3501 const char *new_machine = DEFAULT_TARGET_MACHINE;
3502 const char *progname = argv[0];
3510 while (argc > 1 && argv[1][0] == '-'
3511 && (argv[1][1] == 'V'
3512 || (argv[1][1] == 'b'
3513 && (argv[1][2] == '\0'
3514 || NULL != strchr (argv[1] + 2, '-')))))
3516 char opt = argv[1][1];
3518 if (argv[1][2] != '\0')
3531 fatal ("'-%c' option must have argument", opt);
3538 for (baselen = strlen (progname); baselen > 0; baselen--)
3539 if (IS_DIR_SEPARATOR (progname[baselen-1]))
3541 new_argv0 = XDUPVAR (char, progname, baselen,
3542 baselen + concat_length (new_version, new_machine,
3543 "-gcc-", NULL) + 1);
3544 strcpy (new_argv0 + baselen, new_machine);
3545 strcat (new_argv0, "-gcc-");
3546 strcat (new_argv0, new_version);
3548 new_argv = XDUPVEC (char *, argv, argc + 1);
3549 new_argv[0] = new_argv0;
3551 errmsg = pex_one (PEX_SEARCH, new_argv0, new_argv, progname, NULL,
3552 NULL, &status, &err);
3557 fatal ("couldn't run '%s': %s", new_argv0, errmsg);
3559 fatal ("couldn't run '%s': %s: %s", new_argv0, errmsg,
3565 /* Convert new-style -- options to old-style. */
3566 translate_options (&argc,
3567 CONST_CAST2 (const char *const **, const char ***,
3570 /* Do language-specific adjustment/addition of flags. */
3571 lang_specific_driver (&argc,
3572 CONST_CAST2 (const char *const **, const char ***,
3576 /* Handle any -no-canonical-prefixes flag early, to assign the function
3577 that builds relative prefixes. This function creates default search
3578 paths that are needed later in normal option handling. */
3580 for (i = 1; i < argc; i++)
3582 if (! strcmp (argv[i], "-no-canonical-prefixes"))
3584 get_relative_prefix = make_relative_prefix_ignore_links;
3588 if (! get_relative_prefix)
3589 get_relative_prefix = make_relative_prefix;
3591 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3592 see if we can create it from the pathname specified in argv[0]. */
3594 gcc_libexec_prefix = standard_libexec_prefix;
3596 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3597 if (!gcc_exec_prefix)
3599 gcc_exec_prefix = get_relative_prefix (argv[0],
3600 standard_bindir_prefix,
3601 standard_exec_prefix);
3602 gcc_libexec_prefix = get_relative_prefix (argv[0],
3603 standard_bindir_prefix,
3604 standard_libexec_prefix);
3605 if (gcc_exec_prefix)
3606 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3610 /* make_relative_prefix requires a program name, but
3611 GCC_EXEC_PREFIX is typically a directory name with a trailing
3612 / (which is ignored by make_relative_prefix), so append a
3614 char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL);
3615 gcc_libexec_prefix = get_relative_prefix (tmp_prefix,
3616 standard_exec_prefix,
3617 standard_libexec_prefix);
3619 /* The path is unrelocated, so fallback to the original setting. */
3620 if (!gcc_libexec_prefix)
3621 gcc_libexec_prefix = standard_libexec_prefix;
3627 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3628 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3629 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3631 if (gcc_exec_prefix)
3633 int len = strlen (gcc_exec_prefix);
3635 if (len > (int) sizeof ("/lib/gcc/") - 1
3636 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3638 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
3639 if (IS_DIR_SEPARATOR (*temp)
3640 && strncmp (temp + 1, "lib", 3) == 0
3641 && IS_DIR_SEPARATOR (temp[4])
3642 && strncmp (temp + 5, "gcc", 3) == 0)
3643 len -= sizeof ("/lib/gcc/") - 1;
3646 set_std_prefix (gcc_exec_prefix, len);
3647 add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
3648 PREFIX_PRIORITY_LAST, 0, 0);
3649 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3650 PREFIX_PRIORITY_LAST, 0, 0);
3653 /* COMPILER_PATH and LIBRARY_PATH have values
3654 that are lists of directory names with colons. */
3656 GET_ENVIRONMENT (temp, "COMPILER_PATH");
3659 const char *startp, *endp;
3660 char *nstore = (char *) alloca (strlen (temp) + 3);
3662 startp = endp = temp;
3665 if (*endp == PATH_SEPARATOR || *endp == 0)
3667 strncpy (nstore, startp, endp - startp);
3669 strcpy (nstore, concat (".", dir_separator_str, NULL));
3670 else if (!IS_DIR_SEPARATOR (endp[-1]))
3672 nstore[endp - startp] = DIR_SEPARATOR;
3673 nstore[endp - startp + 1] = 0;
3676 nstore[endp - startp] = 0;
3677 add_prefix (&exec_prefixes, nstore, 0,
3678 PREFIX_PRIORITY_LAST, 0, 0);
3679 add_prefix (&include_prefixes, nstore, 0,
3680 PREFIX_PRIORITY_LAST, 0, 0);
3683 endp = startp = endp + 1;
3690 GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
3691 if (temp && *cross_compile == '0')
3693 const char *startp, *endp;
3694 char *nstore = (char *) alloca (strlen (temp) + 3);
3696 startp = endp = temp;
3699 if (*endp == PATH_SEPARATOR || *endp == 0)
3701 strncpy (nstore, startp, endp - startp);
3703 strcpy (nstore, concat (".", dir_separator_str, NULL));
3704 else if (!IS_DIR_SEPARATOR (endp[-1]))
3706 nstore[endp - startp] = DIR_SEPARATOR;
3707 nstore[endp - startp + 1] = 0;
3710 nstore[endp - startp] = 0;
3711 add_prefix (&startfile_prefixes, nstore, NULL,
3712 PREFIX_PRIORITY_LAST, 0, 1);
3715 endp = startp = endp + 1;
3722 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3723 GET_ENVIRONMENT (temp, "LPATH");
3724 if (temp && *cross_compile == '0')
3726 const char *startp, *endp;
3727 char *nstore = (char *) alloca (strlen (temp) + 3);
3729 startp = endp = temp;
3732 if (*endp == PATH_SEPARATOR || *endp == 0)
3734 strncpy (nstore, startp, endp - startp);
3736 strcpy (nstore, concat (".", dir_separator_str, NULL));
3737 else if (!IS_DIR_SEPARATOR (endp[-1]))
3739 nstore[endp - startp] = DIR_SEPARATOR;
3740 nstore[endp - startp + 1] = 0;
3743 nstore[endp - startp] = 0;
3744 add_prefix (&startfile_prefixes, nstore, NULL,
3745 PREFIX_PRIORITY_LAST, 0, 1);
3748 endp = startp = endp + 1;
3755 /* Scan argv twice. Here, the first time, just count how many switches
3756 there will be in their vector, and how many input files in theirs.
3757 Here we also parse the switches that cc itself uses (e.g. -v). */
3759 for (i = 1; i < argc; i++)
3761 if (! strcmp (argv[i], "-dumpspecs"))
3763 struct spec_list *sl;
3765 for (sl = specs; sl; sl = sl->next)
3766 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3767 if (link_command_spec)
3768 printf ("*link_command:\n%s\n\n", link_command_spec);
3771 else if (! strcmp (argv[i], "-dumpversion"))
3773 printf ("%s\n", spec_version);
3776 else if (! strcmp (argv[i], "-dumpmachine"))
3778 printf ("%s\n", spec_machine);
3781 else if (strcmp (argv[i], "-fversion") == 0)
3783 /* translate_options () has turned --version into -fversion. */
3786 /* We will be passing a dummy file on to the sub-processes. */
3790 /* CPP driver cannot obtain switch from cc1_options. */
3792 add_preprocessor_option ("--version", strlen ("--version"));
3793 add_assembler_option ("--version", strlen ("--version"));
3794 add_linker_option ("--version", strlen ("--version"));
3796 else if (strcmp (argv[i], "-fhelp") == 0)
3798 /* translate_options () has turned --help into -fhelp. */
3799 print_help_list = 1;
3801 /* We will be passing a dummy file on to the sub-processes. */
3805 /* CPP driver cannot obtain switch from cc1_options. */
3807 add_preprocessor_option ("--help", 6);
3808 add_assembler_option ("--help", 6);
3809 add_linker_option ("--help", 6);
3811 else if (strncmp (argv[i], "-fhelp=", 7) == 0)
3813 /* translate_options () has turned --help into -fhelp. */
3814 print_subprocess_help = 2;
3816 /* We will be passing a dummy file on to the sub-processes. */
3820 else if (strcmp (argv[i], "-ftarget-help") == 0)
3822 /* translate_options() has turned --target-help into -ftarget-help. */
3823 print_subprocess_help = 1;
3825 /* We will be passing a dummy file on to the sub-processes. */
3829 /* CPP driver cannot obtain switch from cc1_options. */
3831 add_preprocessor_option ("--target-help", 13);
3832 add_assembler_option ("--target-help", 13);
3833 add_linker_option ("--target-help", 13);
3835 else if (! strcmp (argv[i], "-pass-exit-codes"))
3837 pass_exit_codes = 1;
3840 else if (! strcmp (argv[i], "-print-search-dirs"))
3841 print_search_dirs = 1;
3842 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3843 print_file_name = "libgcc.a";
3844 else if (! strncmp (argv[i], "-print-file-name=", 17))
3845 print_file_name = argv[i] + 17;
3846 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3847 print_prog_name = argv[i] + 17;
3848 else if (! strcmp (argv[i], "-print-multi-lib"))
3849 print_multi_lib = 1;
3850 else if (! strcmp (argv[i], "-print-multi-directory"))
3851 print_multi_directory = 1;
3852 else if (! strcmp (argv[i], "-print-sysroot"))
3854 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3855 print_multi_os_directory = 1;
3856 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
3857 print_sysroot_headers_suffix = 1;
3858 else if (! strcmp (argv[i], "-fcompare-debug-second"))
3860 compare_debug_second = 1;
3863 else if (! strcmp (argv[i], "-fno-compare-debug"))
3865 argv[i] = "-fcompare-debug=";
3866 goto compare_debug_with_arg;
3868 else if (! strcmp (argv[i], "-fcompare-debug"))
3870 argv[i] = "-fcompare-debug=-gtoggle";
3871 goto compare_debug_with_arg;
3873 #define OPT "-fcompare-debug="
3874 else if (! strncmp (argv[i], OPT, sizeof (OPT) - 1))
3877 compare_debug_with_arg:
3878 opt = argv[i] + sizeof (OPT) - 1;
3884 if (compare_debug < 0)
3885 compare_debug_opt = NULL;
3887 compare_debug_opt = opt;
3890 else if (! strncmp (argv[i], "-Wa,", 4))
3893 /* Pass the rest of this option to the assembler. */
3895 /* Split the argument at commas. */
3897 for (j = 4; argv[i][j]; j++)
3898 if (argv[i][j] == ',')
3900 add_assembler_option (argv[i] + prev, j - prev);
3904 /* Record the part after the last comma. */
3905 add_assembler_option (argv[i] + prev, j - prev);
3907 else if (! strncmp (argv[i], "-Wp,", 4))
3910 /* Pass the rest of this option to the preprocessor. */
3912 /* Split the argument at commas. */
3914 for (j = 4; argv[i][j]; j++)
3915 if (argv[i][j] == ',')
3917 add_preprocessor_option (argv[i] + prev, j - prev);
3921 /* Record the part after the last comma. */
3922 add_preprocessor_option (argv[i] + prev, j - prev);
3924 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3925 /* The +e options to the C++ front-end. */
3927 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3930 /* Split the argument at commas. */
3931 for (j = 3; argv[i][j]; j++)
3932 n_infiles += (argv[i][j] == ',');
3934 else if (strcmp (argv[i], "-Xlinker") == 0)
3937 fatal ("argument to '-Xlinker' is missing");
3942 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3945 fatal ("argument to '-Xpreprocessor' is missing");
3947 add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
3949 else if (strcmp (argv[i], "-Xassembler") == 0)
3952 fatal ("argument to '-Xassembler' is missing");
3954 add_assembler_option (argv[i+1], strlen (argv[i+1]));
3956 else if (strcmp (argv[i], "-l") == 0)
3959 fatal ("argument to '-l' is missing");
3964 else if (strncmp (argv[i], "-l", 2) == 0)
3966 else if (strcmp (argv[i], "-save-temps") == 0)
3968 save_temps_flag = SAVE_TEMPS_CWD;
3971 else if (strncmp (argv[i], "-save-temps=", 12) == 0)
3974 if (strcmp (argv[i]+12, "cwd") == 0)
3975 save_temps_flag = SAVE_TEMPS_CWD;
3976 else if (strcmp (argv[i]+12, "obj") == 0
3977 || strcmp (argv[i]+12, "object") == 0)
3978 save_temps_flag = SAVE_TEMPS_OBJ;
3980 fatal ("'%s' is an unknown -save-temps option", argv[i]);
3982 else if (strcmp (argv[i], "-no-canonical-prefixes") == 0)
3983 /* Already handled as a special case, so ignored here. */
3985 else if (strcmp (argv[i], "-combine") == 0)
3990 else if (strcmp (argv[i], "-specs") == 0)
3992 struct user_specs *user = XNEW (struct user_specs);
3994 fatal ("argument to '-specs' is missing");
3996 user->next = (struct user_specs *) 0;
3997 user->filename = argv[i];
3998 if (user_specs_tail)
3999 user_specs_tail->next = user;
4001 user_specs_head = user;
4002 user_specs_tail = user;
4004 else if (strncmp (argv[i], "-specs=", 7) == 0)
4006 struct user_specs *user = XNEW (struct user_specs);
4007 if (strlen (argv[i]) == 7)
4008 fatal ("argument to '-specs=' is missing");
4010 user->next = (struct user_specs *) 0;
4011 user->filename = argv[i] + 7;
4012 if (user_specs_tail)
4013 user_specs_tail->next = user;
4015 user_specs_head = user;
4016 user_specs_tail = user;
4018 else if (strcmp (argv[i], "-time") == 0)
4020 else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
4022 if (report_times_to_file)
4023 fclose (report_times_to_file);
4024 report_times_to_file = fopen (argv[i] + sizeof ("-time=") - 1, "a");
4026 else if (strcmp (argv[i], "-pipe") == 0)
4028 /* -pipe has to go into the switches array as well as
4033 else if (strcmp (argv[i], "-wrapper") == 0)
4036 fatal ("argument to '-wrapper' is missing");
4038 wrapper_string = argv[i];
4042 else if (strcmp (argv[i], "-###") == 0)
4044 /* This is similar to -v except that there is no execution
4045 of the commands and the echoed arguments are quoted. It
4046 is intended for use in shell scripts to capture the
4047 driver-generated command line. */
4048 verbose_only_flag++;
4051 else if (argv[i][0] == '-' && argv[i][1] != 0)
4053 const char *p = &argv[i][1];
4059 if (p[1] && NULL == strchr (argv[i] + 2, '-'))
4064 fatal ("'-%c' must come at the start of the command line", c);
4072 if (p[1] == 0 && i + 1 == argc)
4073 fatal ("argument to '-B' is missing");
4079 len = strlen (value);
4081 /* Catch the case where the user has forgotten to append a
4082 directory separator to the path. Note, they may be using
4083 -B to add an executable name prefix, eg "i386-elf-", in
4084 order to distinguish between multiple installations of
4085 GCC in the same directory. Hence we must check to see
4086 if appending a directory separator actually makes a
4087 valid directory name. */
4088 if (! IS_DIR_SEPARATOR (value [len - 1])
4089 && is_directory (value, false))
4091 char *tmp = XNEWVEC (char, len + 2);
4092 strcpy (tmp, value);
4093 tmp[len] = DIR_SEPARATOR;
4098 add_prefix (&exec_prefixes, value, NULL,
4099 PREFIX_PRIORITY_B_OPT, 0, 0);
4100 add_prefix (&startfile_prefixes, value, NULL,
4101 PREFIX_PRIORITY_B_OPT, 0, 0);
4102 add_prefix (&include_prefixes, value, NULL,
4103 PREFIX_PRIORITY_B_OPT, 0, 0);
4108 case 'v': /* Print our subcommands and print versions. */
4110 /* If they do anything other than exactly `-v', don't set
4111 verbose_flag; rather, continue on to give the error. */
4129 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
4134 /* Forward scan, just in case -S or -c is specified
4141 if (argv[j][0] == '-')
4143 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
4149 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
4150 j += skip - (argv[j][2] != 0);
4151 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
4158 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4160 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
4162 argv[i] = convert_filename (argv[i], ! have_c, 0);
4164 /* Save the output name in case -save-temps=obj was used. */
4165 save_temps_prefix = xstrdup ((p[1] == 0) ? argv[i + 1] : argv[i] + 1);
4171 #ifdef MODIFY_TARGET_NAME
4172 is_modify_target_name = 0;
4174 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4175 if (! strcmp (argv[i], modify_target[j].sw))
4177 char *new_name = XNEWVEC (char, strlen (modify_target[j].str)
4178 + strlen (spec_machine));
4181 int made_addition = 0;
4183 is_modify_target_name = 1;
4184 for (p = spec_machine, q = new_name; *p != 0; )
4186 if (modify_target[j].add_del == DELETE
4187 && (! strncmp (q, modify_target[j].str,
4188 strlen (modify_target[j].str))))
4189 p += strlen (modify_target[j].str);
4190 else if (modify_target[j].add_del == ADD
4191 && ! made_addition && *p == '-')
4193 for (r = modify_target[j].str; *r != 0; )
4201 spec_machine = new_name;
4204 if (is_modify_target_name)
4210 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
4211 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
4212 else if (WORD_SWITCH_TAKES_ARG (p))
4213 i += WORD_SWITCH_TAKES_ARG (p);
4223 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4224 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4225 if (save_temps_flag == SAVE_TEMPS_OBJ && save_temps_prefix != NULL)
4227 save_temps_length = strlen (save_temps_prefix);
4228 temp = strrchr (lbasename (save_temps_prefix), '.');
4231 save_temps_length -= strlen (temp);
4232 save_temps_prefix[save_temps_length] = '\0';
4236 else if (save_temps_prefix != NULL)
4238 free (save_temps_prefix);
4239 save_temps_prefix = NULL;
4242 if (save_temps_flag && use_pipes)
4244 /* -save-temps overrides -pipe, so that temp files are produced */
4245 if (save_temps_flag)
4246 error ("warning: -pipe ignored because -save-temps specified");
4252 const char *gcd = getenv ("GCC_COMPARE_DEBUG");
4254 if (gcd && gcd[0] == '-')
4257 compare_debug_opt = gcd;
4260 else if (gcd && *gcd && strcmp (gcd, "0"))
4263 compare_debug_opt = "-gtoggle";
4267 else if (compare_debug < 0)
4270 gcc_assert (!compare_debug_opt);
4273 /* Set up the search paths. We add directories that we expect to
4274 contain GNU Toolchain components before directories specified by
4275 the machine description so that we will find GNU components (like
4276 the GNU assembler) before those of the host system. */
4278 /* If we don't know where the toolchain has been installed, use the
4279 configured-in locations. */
4280 if (!gcc_exec_prefix)
4283 add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
4284 PREFIX_PRIORITY_LAST, 1, 0);
4285 add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
4286 PREFIX_PRIORITY_LAST, 2, 0);
4287 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
4288 PREFIX_PRIORITY_LAST, 2, 0);
4290 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
4291 PREFIX_PRIORITY_LAST, 1, 0);
4294 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix));
4295 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
4296 dir_separator_str, NULL);
4298 /* Look for tools relative to the location from which the driver is
4299 running, or, if that is not available, the configured prefix. */
4301 = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
4302 spec_machine, dir_separator_str,
4303 spec_version, dir_separator_str, tooldir_prefix, NULL);
4305 add_prefix (&exec_prefixes,
4306 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
4307 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
4308 add_prefix (&startfile_prefixes,
4309 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
4310 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
4312 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4313 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4314 then consider it to relocate with the rest of the GCC installation
4315 if GCC_EXEC_PREFIX is set.
4316 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4317 if (target_system_root && gcc_exec_prefix)
4319 char *tmp_prefix = get_relative_prefix (argv[0],
4320 standard_bindir_prefix,
4321 target_system_root);
4322 if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
4324 target_system_root = tmp_prefix;
4325 target_system_root_changed = 1;
4330 /* More prefixes are enabled in main, after we read the specs file
4331 and determine whether this is cross-compilation or not. */
4333 /* Then create the space for the vectors and scan again. */
4335 switches = XNEWVEC (struct switchstr, n_switches + 1);
4336 infiles = XNEWVEC (struct infile, n_infiles + 1);
4339 last_language_n_infiles = -1;
4341 /* This, time, copy the text of each switch and store a pointer
4342 to the copy in the vector of switches.
4343 Store all the infiles in their vector. */
4345 for (i = 1; i < argc; i++)
4347 /* Just skip the switches that were handled by the preceding loop. */
4348 #ifdef MODIFY_TARGET_NAME
4349 is_modify_target_name = 0;
4351 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4352 if (! strcmp (argv[i], modify_target[j].sw))
4353 is_modify_target_name = 1;
4355 if (is_modify_target_name)
4359 if (! strncmp (argv[i], "-Wa,", 4))
4361 else if (! strncmp (argv[i], "-Wp,", 4))
4363 else if (! strcmp (argv[i], "-no-canonical-prefixes"))
4365 else if (! strcmp (argv[i], "-pass-exit-codes"))
4367 else if (! strcmp (argv[i], "-print-search-dirs"))
4369 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
4371 else if (! strncmp (argv[i], "-print-file-name=", 17))
4373 else if (! strncmp (argv[i], "-print-prog-name=", 17))
4375 else if (! strcmp (argv[i], "-print-multi-lib"))
4377 else if (! strcmp (argv[i], "-print-multi-directory"))
4379 else if (! strcmp (argv[i], "-print-sysroot"))
4381 else if (! strcmp (argv[i], "-print-multi-os-directory"))
4383 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
4385 else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
4387 target_system_root = argv[i] + strlen ("--sysroot=");
4388 target_system_root_changed = 1;
4390 else if (argv[i][0] == '+' && argv[i][1] == 'e')
4392 /* Compensate for the +e options to the C++ front-end;
4393 they're there simply for cfront call-compatibility. We do
4394 some magic in default_compilers to pass them down properly.
4395 Note we deliberately start at the `+' here, to avoid passing
4396 -e0 or -e1 down into the linker. */
4397 switches[n_switches].part1 = &argv[i][0];
4398 switches[n_switches].args = 0;
4399 switches[n_switches].live_cond = 0;
4400 switches[n_switches].validated = 0;
4403 else if (strncmp (argv[i], "-Wl,", 4) == 0)
4406 /* Split the argument at commas. */
4408 for (j = 4; argv[i][j]; j++)
4409 if (argv[i][j] == ',')
4411 infiles[n_infiles].language = "*";
4412 infiles[n_infiles++].name
4413 = save_string (argv[i] + prev, j - prev);
4416 /* Record the part after the last comma. */
4417 infiles[n_infiles].language = "*";
4418 infiles[n_infiles++].name = argv[i] + prev;
4420 else if (strcmp (argv[i], "-Xlinker") == 0)
4422 infiles[n_infiles].language = "*";
4423 infiles[n_infiles++].name = argv[++i];
4425 /* Xassembler and Xpreprocessor were already handled in the first argv
4426 scan, so all we need to do here is ignore them and their argument. */
4427 else if (strcmp (argv[i], "-Xassembler") == 0)
4429 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
4431 else if (strcmp (argv[i], "-l") == 0)
4432 { /* POSIX allows separation of -l and the lib arg;
4433 canonicalize by concatenating -l with its arg */
4434 infiles[n_infiles].language = "*";
4435 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
4437 else if (strncmp (argv[i], "-l", 2) == 0)
4439 infiles[n_infiles].language = "*";
4440 infiles[n_infiles++].name = argv[i];
4442 else if (strcmp (argv[i], "-wrapper") == 0)
4444 else if (strcmp (argv[i], "-specs") == 0)
4446 else if (strncmp (argv[i], "-specs=", 7) == 0)
4448 else if (strcmp (argv[i], "-time") == 0)
4450 else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
4452 else if (strcmp (argv[i], "-###") == 0)
4454 else if (argv[i][0] == '-' && argv[i][1] != 0)
4456 const char *p = &argv[i][1];
4461 if (p[1] == 0 && i + 1 == argc)
4462 fatal ("argument to '-x' is missing");
4464 spec_lang = argv[++i];
4467 if (! strcmp (spec_lang, "none"))
4468 /* Suppress the warning if -xnone comes after the last input
4469 file, because alternate command interfaces like g++ might
4470 find it useful to place -xnone after each input file. */
4473 last_language_n_infiles = n_infiles;
4476 switches[n_switches].part1 = p;
4477 /* Deal with option arguments in separate argv elements. */
4478 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4479 || WORD_SWITCH_TAKES_ARG (p))
4482 int n_args = WORD_SWITCH_TAKES_ARG (p);
4486 /* Count only the option arguments in separate argv elements. */
4487 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4489 if (i + n_args >= argc)
4490 fatal ("argument to '-%s' is missing", p);
4491 switches[n_switches].args
4492 = XNEWVEC (const char *, n_args + 1);
4494 switches[n_switches].args[j++] = argv[++i];
4495 /* Null-terminate the vector. */
4496 switches[n_switches].args[j] = 0;
4498 else if (strchr (switches_need_spaces, c))
4500 /* On some systems, ld cannot handle some options without
4501 a space. So split the option from its argument. */
4502 char *part1 = XNEWVEC (char, 2);
4506 switches[n_switches].part1 = part1;
4507 switches[n_switches].args = XNEWVEC (const char *, 2);
4508 switches[n_switches].args[0] = xstrdup (p+1);
4509 switches[n_switches].args[1] = 0;
4512 switches[n_switches].args = 0;
4514 switches[n_switches].live_cond = 0;
4515 switches[n_switches].validated = 0;
4516 switches[n_switches].ordering = 0;
4517 /* These are always valid, since gcc.c itself understands the
4518 first four and gfortranspec.c understands -static-libgfortran. */
4519 if (!strcmp (p, "save-temps")
4520 || !strcmp (p, "static-libgcc")
4521 || !strcmp (p, "shared-libgcc")
4522 || !strcmp (p, "pipe")
4523 || !strcmp (p, "static-libgfortran"))
4524 switches[n_switches].validated = 1;
4527 char ch = switches[n_switches].part1[0];
4529 switches[n_switches].validated = 1;
4535 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4536 argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
4539 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
4541 perror_with_name (argv[i]);
4546 infiles[n_infiles].language = spec_lang;
4547 infiles[n_infiles++].name = argv[i];
4552 if (n_infiles == last_language_n_infiles && spec_lang != 0)
4553 error ("warning: '-x %s' after last input file has no effect", spec_lang);
4555 if (compare_debug == 2 || compare_debug == 3)
4557 switches[n_switches].part1 = concat ("fcompare-debug=",
4560 switches[n_switches].args = 0;
4561 switches[n_switches].live_cond = 0;
4562 switches[n_switches].validated = 0;
4563 switches[n_switches].ordering = 0;
4568 /* Ensure we only invoke each subprocess once. */
4569 if (print_subprocess_help || print_help_list || print_version)
4573 /* Create a dummy input file, so that we can pass
4574 the help option on to the various sub-processes. */
4575 infiles[0].language = "c";
4576 infiles[0].name = "help-dummy";
4579 switches[n_switches].part1 = 0;
4580 infiles[n_infiles].name = 0;
4583 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4584 and place that in the environment. */
4587 set_collect_gcc_options (void)
4592 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4594 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4595 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4598 for (i = 0; (int) i < n_switches; i++)
4600 const char *const *args;
4603 obstack_grow (&collect_obstack, " ", 1);
4607 /* Ignore elided switches. */
4608 if ((switches[i].live_cond & SWITCH_IGNORE) != 0)
4611 /* Don't use -fwhole-program when compiling the init and fini routines,
4612 since we'd wrongly assume that the routines aren't needed. */
4613 if (strcmp (switches[i].part1, "fwhole-program") == 0)
4616 obstack_grow (&collect_obstack, "'-", 2);
4617 q = switches[i].part1;
4618 while ((p = strchr (q, '\'')))
4620 obstack_grow (&collect_obstack, q, p - q);
4621 obstack_grow (&collect_obstack, "'\\''", 4);
4624 obstack_grow (&collect_obstack, q, strlen (q));
4625 obstack_grow (&collect_obstack, "'", 1);
4627 for (args = switches[i].args; args && *args; args++)
4629 obstack_grow (&collect_obstack, " '", 2);
4631 while ((p = strchr (q, '\'')))
4633 obstack_grow (&collect_obstack, q, p - q);
4634 obstack_grow (&collect_obstack, "'\\''", 4);
4637 obstack_grow (&collect_obstack, q, strlen (q));
4638 obstack_grow (&collect_obstack, "'", 1);
4641 obstack_grow (&collect_obstack, "\0", 1);
4642 xputenv (XOBFINISH (&collect_obstack, char *));
4645 /* Process a spec string, accumulating and running commands. */
4647 /* These variables describe the input file name.
4648 input_file_number is the index on outfiles of this file,
4649 so that the output file name can be stored for later use by %o.
4650 input_basename is the start of the part of the input file
4651 sans all directory names, and basename_length is the number
4652 of characters starting there excluding the suffix .c or whatever. */
4654 static const char *input_filename;
4655 static int input_file_number;
4656 size_t input_filename_length;
4657 static int basename_length;
4658 static int suffixed_basename_length;
4659 static const char *input_basename;
4660 static const char *input_suffix;
4661 #ifndef HOST_LACKS_INODE_NUMBERS
4662 static struct stat input_stat;
4664 static int input_stat_set;
4666 /* The compiler used to process the current input file. */
4667 static struct compiler *input_file_compiler;
4669 /* These are variables used within do_spec and do_spec_1. */
4671 /* Nonzero if an arg has been started and not yet terminated
4672 (with space, tab or newline). */
4673 static int arg_going;
4675 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4676 is a temporary file name. */
4677 static int delete_this_arg;
4679 /* Nonzero means %w has been seen; the next arg to be terminated
4680 is the output file name of this compilation. */
4681 static int this_is_output_file;
4683 /* Nonzero means %s has been seen; the next arg to be terminated
4684 is the name of a library file and we should try the standard
4685 search dirs for it. */
4686 static int this_is_library_file;
4688 /* Nonzero means that the input of this command is coming from a pipe. */
4689 static int input_from_pipe;
4691 /* Nonnull means substitute this for any suffix when outputting a switches
4693 static const char *suffix_subst;
4695 /* If there is an argument being accumulated, terminate it and store it. */
4698 end_going_arg (void)
4704 obstack_1grow (&obstack, 0);
4705 string = XOBFINISH (&obstack, const char *);
4706 if (this_is_library_file)
4707 string = find_file (string);
4708 store_arg (string, delete_this_arg, this_is_output_file);
4709 if (this_is_output_file)
4710 outfiles[input_file_number] = string;
4716 /* Parse the WRAPPER string which is a comma separated list of the command line
4717 and insert them into the beginning of argbuf. */
4720 insert_wrapper (const char *wrapper)
4724 char *buf = xstrdup (wrapper);
4733 while ((p = strchr (p, ',')) != NULL);
4735 if (argbuf_index + n >= argbuf_length)
4737 argbuf_length = argbuf_length * 2;
4738 while (argbuf_length < argbuf_index + n)
4740 argbuf = XRESIZEVEC (const char *, argbuf, argbuf_length);
4742 for (i = argbuf_index - 1; i >= 0; i--)
4743 argbuf[i + n] = argbuf[i];
4756 while ((p = strchr (p, ',')) != NULL);
4757 gcc_assert (i == n);
4761 /* Process the spec SPEC and run the commands specified therein.
4762 Returns 0 if the spec is successfully processed; -1 if failed. */
4765 do_spec (const char *spec)
4769 value = do_spec_2 (spec);
4771 /* Force out any unfinished command.
4772 If -pipe, this forces out the last command if it ended in `|'. */
4775 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4778 set_collect_gcc_options ();
4780 if (argbuf_index > 0)
4788 do_spec_2 (const char *spec)
4794 delete_this_arg = 0;
4795 this_is_output_file = 0;
4796 this_is_library_file = 0;
4797 input_from_pipe = 0;
4798 suffix_subst = NULL;
4800 result = do_spec_1 (spec, 0, NULL);
4808 /* Process the given spec string and add any new options to the end
4809 of the switches/n_switches array. */
4812 do_option_spec (const char *name, const char *spec)
4814 unsigned int i, value_count, value_len;
4815 const char *p, *q, *value;
4816 char *tmp_spec, *tmp_spec_p;
4818 if (configure_default_options[0].name == NULL)
4821 for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
4822 if (strcmp (configure_default_options[i].name, name) == 0)
4824 if (i == ARRAY_SIZE (configure_default_options))
4827 value = configure_default_options[i].value;
4828 value_len = strlen (value);
4830 /* Compute the size of the final spec. */
4833 while ((p = strstr (p, "%(VALUE)")) != NULL)
4839 /* Replace each %(VALUE) by the specified value. */
4840 tmp_spec = (char *) alloca (strlen (spec) + 1
4841 + value_count * (value_len - strlen ("%(VALUE)")));
4842 tmp_spec_p = tmp_spec;
4844 while ((p = strstr (q, "%(VALUE)")) != NULL)
4846 memcpy (tmp_spec_p, q, p - q);
4847 tmp_spec_p = tmp_spec_p + (p - q);
4848 memcpy (tmp_spec_p, value, value_len);
4849 tmp_spec_p += value_len;
4850 q = p + strlen ("%(VALUE)");
4852 strcpy (tmp_spec_p, q);
4854 do_self_spec (tmp_spec);
4857 /* Process the given spec string and add any new options to the end
4858 of the switches/n_switches array. */
4861 do_self_spec (const char *spec)
4864 do_spec_1 (" ", 0, NULL);
4866 if (argbuf_index > 0)
4870 switches = XRESIZEVEC (struct switchstr, switches,
4871 n_switches + argbuf_index + 1);
4873 for (i = 0; i < argbuf_index; i++)
4875 struct switchstr *sw;
4876 const char *p = argbuf[i];
4879 /* Each switch should start with '-'. */
4881 fatal ("switch '%s' does not start with '-'", argbuf[i]);
4886 sw = &switches[n_switches++];
4892 /* Deal with option arguments in separate argv elements. */
4893 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4894 || WORD_SWITCH_TAKES_ARG (p))
4897 int n_args = WORD_SWITCH_TAKES_ARG (p);
4901 /* Count only the option arguments in separate argv elements. */
4902 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4904 if (i + n_args >= argbuf_index)
4905 fatal ("argument to '-%s' is missing", p);
4907 = XNEWVEC (const char *, n_args + 1);
4909 sw->args[j++] = argbuf[++i];
4910 /* Null-terminate the vector. */
4913 else if (strchr (switches_need_spaces, c))
4915 /* On some systems, ld cannot handle some options without
4916 a space. So split the option from its argument. */
4917 char *part1 = XNEWVEC (char, 2);
4922 sw->args = XNEWVEC (const char *, 2);
4923 sw->args[0] = xstrdup (p+1);
4930 switches[n_switches].part1 = 0;
4934 /* Callback for processing %D and %I specs. */
4936 struct spec_path_info {
4941 bool separate_options;
4945 spec_path (char *path, void *data)
4947 struct spec_path_info *info = (struct spec_path_info *) data;
4951 if (info->omit_relative && !IS_ABSOLUTE_PATH (path))
4954 if (info->append_len != 0)
4956 len = strlen (path);
4957 memcpy (path + len, info->append, info->append_len + 1);
4960 if (!is_directory (path, true))
4963 do_spec_1 (info->option, 1, NULL);
4964 if (info->separate_options)
4965 do_spec_1 (" ", 0, NULL);
4967 if (info->append_len == 0)
4969 len = strlen (path);
4970 save = path[len - 1];
4971 if (IS_DIR_SEPARATOR (path[len - 1]))
4972 path[len - 1] = '\0';
4975 do_spec_1 (path, 1, NULL);
4976 do_spec_1 (" ", 0, NULL);
4978 /* Must not damage the original path. */
4979 if (info->append_len == 0)
4980 path[len - 1] = save;
4985 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4989 create_at_file (char **argv)
4991 char *temp_file = make_temp_file ("");
4992 char *at_argument = concat ("@", temp_file, NULL);
4993 FILE *f = fopen (temp_file, "w");
4997 fatal ("could not open temporary response file %s",
5000 status = writeargv (argv, f);
5003 fatal ("could not write to temporary response file %s",
5006 status = fclose (f);
5009 fatal ("could not close temporary response file %s",
5012 store_arg (at_argument, 0, 0);
5014 record_temp_file (temp_file, !save_temps_flag, !save_temps_flag);
5017 /* True if we should compile INFILE. */
5020 compile_input_file_p (struct infile *infile)
5022 if ((!infile->language) || (infile->language[0] != '*'))
5023 if (infile->incompiler == input_file_compiler)
5028 /* Process the sub-spec SPEC as a portion of a larger spec.
5029 This is like processing a whole spec except that we do
5030 not initialize at the beginning and we do not supply a
5031 newline by default at the end.
5032 INSWITCH nonzero means don't process %-sequences in SPEC;
5033 in this case, % is treated as an ordinary character.
5034 This is used while substituting switches.
5035 INSWITCH nonzero also causes SPC not to terminate an argument.
5037 Value is zero unless a line was finished
5038 and the command on that line reported an error. */
5041 do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
5043 const char *p = spec;
5049 /* If substituting a switch, treat all chars like letters.
5050 Otherwise, NL, SPC, TAB and % are special. */
5051 switch (inswitch ? 'a' : c)
5056 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
5058 /* A `|' before the newline means use a pipe here,
5059 but only if -pipe was specified.
5060 Otherwise, execute now and don't pass the `|' as an arg. */
5063 input_from_pipe = 1;
5070 set_collect_gcc_options ();
5072 if (argbuf_index > 0)
5078 /* Reinitialize for a new command, and for a new argument. */
5081 delete_this_arg = 0;
5082 this_is_output_file = 0;
5083 this_is_library_file = 0;
5084 input_from_pipe = 0;
5091 obstack_1grow (&obstack, c);
5099 /* Reinitialize for a new argument. */
5100 delete_this_arg = 0;
5101 this_is_output_file = 0;
5102 this_is_library_file = 0;
5109 fatal ("spec '%s' invalid", spec);
5112 if (save_temps_length)
5113 obstack_grow (&obstack, save_temps_prefix, save_temps_length);
5115 obstack_grow (&obstack, input_basename, basename_length);
5116 if (compare_debug < 0)
5117 obstack_grow (&obstack, ".gk", 3);
5122 if (save_temps_length)
5123 obstack_grow (&obstack, save_temps_prefix, save_temps_length);
5125 obstack_grow (&obstack, input_basename, suffixed_basename_length);
5126 if (compare_debug < 0)
5127 obstack_grow (&obstack, ".gk", 3);
5132 delete_this_arg = 2;
5135 /* Dump out the directories specified with LIBRARY_PATH,
5136 followed by the absolute directories
5137 that we search for startfiles. */
5140 struct spec_path_info info;
5143 info.append_len = 0;
5144 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5145 /* Used on systems which record the specified -L dirs
5146 and use them to search for dynamic linking.
5147 Relative directories always come from -B,
5148 and it is better not to use them for searching
5149 at run time. In particular, stage1 loses. */
5150 info.omit_relative = true;
5152 info.omit_relative = false;
5154 info.separate_options = false;
5156 for_each_path (&startfile_prefixes, true, 0, spec_path, &info);
5161 /* %efoo means report an error with `foo' as error message
5162 and don't execute any more commands for this file. */
5166 while (*p != 0 && *p != '\n')
5168 buf = (char *) alloca (p - q + 1);
5169 strncpy (buf, q, p - q);
5176 /* %nfoo means report a notice with `foo' on stderr. */
5180 while (*p != 0 && *p != '\n')
5182 buf = (char *) alloca (p - q + 1);
5183 strncpy (buf, q, p - q);
5185 notice ("%s\n", buf);
5195 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5196 defined, and it is not a directory, and it is
5197 writable, use it. Otherwise, treat this like any
5198 other temporary file. */
5200 if ((!save_temps_flag)
5201 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
5202 && (access (HOST_BIT_BUCKET, W_OK) == 0))
5204 obstack_grow (&obstack, HOST_BIT_BUCKET,
5205 strlen (HOST_BIT_BUCKET));
5206 delete_this_arg = 0;
5211 goto create_temp_file;
5215 obstack_1grow (&obstack, '-');
5216 delete_this_arg = 0;
5219 /* consume suffix */
5220 while (*p == '.' || ISALNUM ((unsigned char) *p))
5222 if (p[0] == '%' && p[1] == 'O')
5227 goto create_temp_file;
5231 /* consume suffix */
5232 while (*p == '.' || ISALNUM ((unsigned char) *p))
5234 if (p[0] == '%' && p[1] == 'O')
5239 goto create_temp_file;
5245 struct temp_name *t;
5247 const char *suffix = p;
5248 char *saved_suffix = NULL;
5250 while (*p == '.' || ISALNUM ((unsigned char) *p))
5252 suffix_length = p - suffix;
5253 if (p[0] == '%' && p[1] == 'O')
5256 /* We don't support extra suffix characters after %O. */
5257 if (*p == '.' || ISALNUM ((unsigned char) *p))
5258 fatal ("spec '%s' has invalid '%%0%c'", spec, *p);
5259 if (suffix_length == 0)
5260 suffix = TARGET_OBJECT_SUFFIX;
5264 = XNEWVEC (char, suffix_length
5265 + strlen (TARGET_OBJECT_SUFFIX));
5266 strncpy (saved_suffix, suffix, suffix_length);
5267 strcpy (saved_suffix + suffix_length,
5268 TARGET_OBJECT_SUFFIX);
5270 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
5273 if (compare_debug < 0)
5275 suffix = concat (".gk", suffix, NULL);
5279 /* If -save-temps=obj and -o were specified, use that for the
5281 if (save_temps_length)
5284 temp_filename_length
5285 = save_temps_length + suffix_length + 1;
5286 tmp = (char *) alloca (temp_filename_length);
5287 memcpy (tmp, save_temps_prefix, save_temps_length);
5288 memcpy (tmp + save_temps_length, suffix, suffix_length);
5289 tmp[save_temps_length + suffix_length] = '\0';
5290 temp_filename = save_string (tmp,
5291 temp_filename_length + 1);
5292 obstack_grow (&obstack, temp_filename,
5293 temp_filename_length);
5295 delete_this_arg = 0;
5299 /* If the input_filename has the same suffix specified
5300 for the %g, %u, or %U, and -save-temps is specified,
5301 we could end up using that file as an intermediate
5302 thus clobbering the user's source file (.e.g.,
5303 gcc -save-temps foo.s would clobber foo.s with the
5304 output of cpp0). So check for this condition and
5305 generate a temp file as the intermediate. */
5307 if (save_temps_flag)
5310 temp_filename_length = basename_length + suffix_length + 1;
5311 tmp = (char *) alloca (temp_filename_length);
5312 memcpy (tmp, input_basename, basename_length);
5313 memcpy (tmp + basename_length, suffix, suffix_length);
5314 tmp[basename_length + suffix_length] = '\0';
5315 temp_filename = tmp;
5317 if (strcmp (temp_filename, input_filename) != 0)
5319 #ifndef HOST_LACKS_INODE_NUMBERS
5320 struct stat st_temp;
5322 /* Note, set_input() resets input_stat_set to 0. */
5323 if (input_stat_set == 0)
5325 input_stat_set = stat (input_filename, &input_stat);
5326 if (input_stat_set >= 0)
5330 /* If we have the stat for the input_filename
5331 and we can do the stat for the temp_filename
5332 then the they could still refer to the same
5333 file if st_dev/st_ino's are the same. */
5334 if (input_stat_set != 1
5335 || stat (temp_filename, &st_temp) < 0
5336 || input_stat.st_dev != st_temp.st_dev
5337 || input_stat.st_ino != st_temp.st_ino)
5339 /* Just compare canonical pathnames. */
5340 char* input_realname = lrealpath (input_filename);
5341 char* temp_realname = lrealpath (temp_filename);
5342 bool files_differ = strcmp (input_realname, temp_realname);
5343 free (input_realname);
5344 free (temp_realname);
5348 temp_filename = save_string (temp_filename,
5349 temp_filename_length + 1);
5350 obstack_grow (&obstack, temp_filename,
5351 temp_filename_length);
5353 delete_this_arg = 0;
5359 /* See if we already have an association of %g/%u/%U and
5361 for (t = temp_names; t; t = t->next)
5362 if (t->length == suffix_length
5363 && strncmp (t->suffix, suffix, suffix_length) == 0
5364 && t->unique == (c == 'u' || c == 'U' || c == 'j'))
5367 /* Make a new association if needed. %u and %j
5369 if (t == 0 || c == 'u' || c == 'j')
5373 t = XNEW (struct temp_name);
5374 t->next = temp_names;
5377 t->length = suffix_length;
5380 t->suffix = saved_suffix;
5381 saved_suffix = NULL;
5384 t->suffix = save_string (suffix, suffix_length);
5385 t->unique = (c == 'u' || c == 'U' || c == 'j');
5386 temp_filename = make_temp_file (t->suffix);
5387 temp_filename_length = strlen (temp_filename);
5388 t->filename = temp_filename;
5389 t->filename_length = temp_filename_length;
5393 free (saved_suffix);
5395 obstack_grow (&obstack, t->filename, t->filename_length);
5396 delete_this_arg = 1;
5404 if (at_file_supplied)
5406 /* We are going to expand `%i' to `@FILE', where FILE
5407 is a newly-created temporary filename. The filenames
5408 that would usually be expanded in place of %o will be
5409 written to the temporary file. */
5414 for (i = 0; i < n_infiles; i++)
5415 if (compile_input_file_p (&infiles[i]))
5418 argv = (char **) alloca (sizeof (char *) * (n_files + 1));
5420 /* Copy the strings over. */
5421 for (i = 0, j = 0; i < n_infiles; i++)
5422 if (compile_input_file_p (&infiles[i]))
5424 argv[j] = CONST_CAST (char *, infiles[i].name);
5425 infiles[i].compiled = true;
5430 create_at_file (argv);
5433 for (i = 0; (int) i < n_infiles; i++)
5434 if (compile_input_file_p (&infiles[i]))
5436 store_arg (infiles[i].name, 0, 0);
5437 infiles[i].compiled = true;
5442 obstack_grow (&obstack, input_filename, input_filename_length);
5449 struct spec_path_info info;
5453 do_spec_1 ("-imultilib", 1, NULL);
5454 /* Make this a separate argument. */
5455 do_spec_1 (" ", 0, NULL);
5456 do_spec_1 (multilib_dir, 1, NULL);
5457 do_spec_1 (" ", 0, NULL);
5460 if (gcc_exec_prefix)
5462 do_spec_1 ("-iprefix", 1, NULL);
5463 /* Make this a separate argument. */
5464 do_spec_1 (" ", 0, NULL);
5465 do_spec_1 (gcc_exec_prefix, 1, NULL);
5466 do_spec_1 (" ", 0, NULL);
5469 if (target_system_root_changed ||
5470 (target_system_root && target_sysroot_hdrs_suffix))
5472 do_spec_1 ("-isysroot", 1, NULL);
5473 /* Make this a separate argument. */
5474 do_spec_1 (" ", 0, NULL);
5475 do_spec_1 (target_system_root, 1, NULL);
5476 if (target_sysroot_hdrs_suffix)
5477 do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
5478 do_spec_1 (" ", 0, NULL);
5481 info.option = "-isystem";
5482 info.append = "include";
5483 info.append_len = strlen (info.append);
5484 info.omit_relative = false;
5485 info.separate_options = true;
5487 for_each_path (&include_prefixes, false, info.append_len,
5490 info.append = "include-fixed";
5491 if (*sysroot_hdrs_suffix_spec)
5492 info.append = concat (info.append, dir_separator_str,
5493 multilib_dir, NULL);
5494 info.append_len = strlen (info.append);
5495 for_each_path (&include_prefixes, false, info.append_len,
5502 int max = n_infiles;
5503 max += lang_specific_extra_outfiles;
5505 if (HAVE_GNU_LD && at_file_supplied)
5507 /* We are going to expand `%o' to `@FILE', where FILE
5508 is a newly-created temporary filename. The filenames
5509 that would usually be expanded in place of %o will be
5510 written to the temporary file. */
5515 /* Convert OUTFILES into a form suitable for writeargv. */
5517 /* Determine how many are non-NULL. */
5518 for (n_files = 0, i = 0; i < max; i++)
5519 n_files += outfiles[i] != NULL;
5521 argv = (char **) alloca (sizeof (char *) * (n_files + 1));
5523 /* Copy the strings over. */
5524 for (i = 0, j = 0; i < max; i++)
5527 argv[j] = CONST_CAST (char *, outfiles[i]);
5532 create_at_file (argv);
5535 for (i = 0; i < max; i++)
5537 store_arg (outfiles[i], 0, 0);
5542 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
5547 this_is_library_file = 1;
5551 outfiles[input_file_number] = NULL;
5555 this_is_output_file = 1;
5560 int cur_index = argbuf_index;
5561 /* Handle the {...} following the %W. */
5563 fatal ("spec '%s' has invalid '%%W%c", spec, *p);
5564 p = handle_braces (p + 1);
5568 /* If any args were output, mark the last one for deletion
5570 if (argbuf_index != cur_index)
5571 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
5575 /* %x{OPTION} records OPTION for %X to output. */
5581 /* Skip past the option value and make a copy. */
5583 fatal ("spec '%s' has invalid '%%x%c'", spec, *p);
5586 string = save_string (p1 + 1, p - p1 - 2);
5588 /* See if we already recorded this option. */
5589 for (i = 0; i < n_linker_options; i++)
5590 if (! strcmp (string, linker_options[i]))
5596 /* This option is new; add it. */
5597 add_linker_option (string, strlen (string));
5601 /* Dump out the options accumulated previously using %x. */
5603 for (i = 0; i < n_linker_options; i++)
5605 do_spec_1 (linker_options[i], 1, NULL);
5606 /* Make each accumulated option a separate argument. */
5607 do_spec_1 (" ", 0, NULL);
5611 /* Dump out the options accumulated previously using -Wa,. */
5613 for (i = 0; i < n_assembler_options; i++)
5615 do_spec_1 (assembler_options[i], 1, NULL);
5616 /* Make each accumulated option a separate argument. */
5617 do_spec_1 (" ", 0, NULL);
5621 /* Dump out the options accumulated previously using -Wp,. */
5623 for (i = 0; i < n_preprocessor_options; i++)
5625 do_spec_1 (preprocessor_options[i], 1, NULL);
5626 /* Make each accumulated option a separate argument. */
5627 do_spec_1 (" ", 0, NULL);
5631 /* Here are digits and numbers that just process
5632 a certain constant string as a spec. */
5635 value = do_spec_1 (cc1_spec, 0, NULL);
5641 value = do_spec_1 (cc1plus_spec, 0, NULL);
5647 value = do_spec_1 (asm_spec, 0, NULL);
5653 value = do_spec_1 (asm_final_spec, 0, NULL);
5660 const char *const spec
5661 = (input_file_compiler->cpp_spec
5662 ? input_file_compiler->cpp_spec
5664 value = do_spec_1 (spec, 0, NULL);
5671 value = do_spec_1 (endfile_spec, 0, NULL);
5677 value = do_spec_1 (link_spec, 0, NULL);
5683 value = do_spec_1 (lib_spec, 0, NULL);
5689 value = do_spec_1 (libgcc_spec, 0, NULL);
5695 /* We assume there is a directory
5696 separator at the end of this string. */
5697 if (target_system_root)
5699 obstack_grow (&obstack, target_system_root,
5700 strlen (target_system_root));
5701 if (target_sysroot_suffix)
5702 obstack_grow (&obstack, target_sysroot_suffix,
5703 strlen (target_sysroot_suffix));
5708 value = do_spec_1 (startfile_spec, 0, NULL);
5713 /* Here we define characters other than letters and digits. */
5716 p = handle_braces (p);
5722 p = handle_spec_function (p);
5728 obstack_1grow (&obstack, '%');
5735 while (p[len] && p[len] != ' ' && p[len] != '%')
5737 suffix_subst = save_string (p - 1, len + 1);
5742 /* Henceforth ignore the option(s) matching the pattern
5747 int have_wildcard = 0;
5750 while (p[len] && p[len] != ' ' && p[len] != '\t')
5753 if (p[len-1] == '*')
5756 for (i = 0; i < n_switches; i++)
5757 if (!strncmp (switches[i].part1, p, len - have_wildcard)
5758 && (have_wildcard || switches[i].part1[len] == '\0'))
5760 switches[i].live_cond |= SWITCH_IGNORE;
5761 switches[i].validated = 1;
5769 if (soft_matched_part)
5771 do_spec_1 (soft_matched_part, 1, NULL);
5772 do_spec_1 (" ", 0, NULL);
5775 /* Catch the case where a spec string contains something like
5776 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5777 hand side of the :. */
5778 error ("spec failure: '%%*' has not been initialized by pattern match");
5781 /* Process a string found as the value of a spec given by name.
5782 This feature allows individual machine descriptions
5783 to add and use their own specs.
5784 %[...] modifies -D options the way %P does;
5785 %(...) uses the spec unmodified. */
5787 error ("warning: use of obsolete %%[ operator in specs");
5790 const char *name = p;
5791 struct spec_list *sl;
5794 /* The string after the S/P is the name of a spec that is to be
5796 while (*p && *p != ')' && *p != ']')
5799 /* See if it's in the list. */
5800 for (len = p - name, sl = specs; sl; sl = sl->next)
5801 if (sl->name_len == len && !strncmp (sl->name, name, len))
5803 name = *(sl->ptr_spec);
5805 notice ("Processing spec %c%s%c, which is '%s'\n",
5806 c, sl->name, (c == '(') ? ')' : ']', name);
5815 value = do_spec_1 (name, 0, NULL);
5821 char *x = (char *) alloca (strlen (name) * 2 + 1);
5823 const char *y = name;
5826 /* Copy all of NAME into BUF, but put __ after
5827 every -D and at the end of each arg. */
5830 if (! strncmp (y, "-D", 2))
5841 && (*y == ' ' || *y == '\t' || *y == '='
5842 || *y == '}' || *y == 0))
5855 value = do_spec_1 (buf, 0, NULL);
5861 /* Discard the closing paren or bracket. */
5868 error ("spec failure: unrecognized spec option '%c'", c);
5874 /* Backslash: treat next character as ordinary. */
5879 /* Ordinary character: put it into the current argument. */
5880 obstack_1grow (&obstack, c);
5884 /* End of string. If we are processing a spec function, we need to
5885 end any pending argument. */
5886 if (processing_spec_function)
5892 /* Look up a spec function. */
5894 static const struct spec_function *
5895 lookup_spec_function (const char *name)
5897 const struct spec_function *sf;
5899 for (sf = static_spec_functions; sf->name != NULL; sf++)
5900 if (strcmp (sf->name, name) == 0)
5906 /* Evaluate a spec function. */
5909 eval_spec_function (const char *func, const char *args)
5911 const struct spec_function *sf;
5912 const char *funcval;
5914 /* Saved spec processing context. */
5915 int save_argbuf_index;
5916 int save_argbuf_length;
5917 const char **save_argbuf;
5920 int save_delete_this_arg;
5921 int save_this_is_output_file;
5922 int save_this_is_library_file;
5923 int save_input_from_pipe;
5924 const char *save_suffix_subst;
5927 sf = lookup_spec_function (func);
5929 fatal ("unknown spec function '%s'", func);
5931 /* Push the spec processing context. */
5932 save_argbuf_index = argbuf_index;
5933 save_argbuf_length = argbuf_length;
5934 save_argbuf = argbuf;
5936 save_arg_going = arg_going;
5937 save_delete_this_arg = delete_this_arg;
5938 save_this_is_output_file = this_is_output_file;
5939 save_this_is_library_file = this_is_library_file;
5940 save_input_from_pipe = input_from_pipe;
5941 save_suffix_subst = suffix_subst;
5943 /* Create a new spec processing context, and build the function
5947 if (do_spec_2 (args) < 0)
5948 fatal ("error in args to spec function '%s'", func);
5950 /* argbuf_index is an index for the next argument to be inserted, and
5951 so contains the count of the args already inserted. */
5953 funcval = (*sf->func) (argbuf_index, argbuf);
5955 /* Pop the spec processing context. */
5956 argbuf_index = save_argbuf_index;
5957 argbuf_length = save_argbuf_length;
5959 argbuf = save_argbuf;
5961 arg_going = save_arg_going;
5962 delete_this_arg = save_delete_this_arg;
5963 this_is_output_file = save_this_is_output_file;
5964 this_is_library_file = save_this_is_library_file;
5965 input_from_pipe = save_input_from_pipe;
5966 suffix_subst = save_suffix_subst;
5971 /* Handle a spec function call of the form:
5975 ARGS is processed as a spec in a separate context and split into an
5976 argument vector in the normal fashion. The function returns a string
5977 containing a spec which we then process in the caller's context, or
5978 NULL if no processing is required. */
5981 handle_spec_function (const char *p)
5984 const char *endp, *funcval;
5987 processing_spec_function++;
5989 /* Get the function name. */
5990 for (endp = p; *endp != '\0'; endp++)
5992 if (*endp == '(') /* ) */
5994 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5995 if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
5996 fatal ("malformed spec function name");
5998 if (*endp != '(') /* ) */
5999 fatal ("no arguments for spec function");
6000 func = save_string (p, endp - p);
6003 /* Get the arguments. */
6004 for (count = 0; *endp != '\0'; endp++)
6013 else if (*endp == '(') /* ) */
6018 fatal ("malformed spec function arguments");
6019 args = save_string (p, endp - p);
6022 /* p now points to just past the end of the spec function expression. */
6024 funcval = eval_spec_function (func, args);
6025 if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
6031 processing_spec_function--;
6036 /* Inline subroutine of handle_braces. Returns true if the current
6037 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6039 input_suffix_matches (const char *atom, const char *end_atom)
6041 return (input_suffix
6042 && !strncmp (input_suffix, atom, end_atom - atom)
6043 && input_suffix[end_atom - atom] == '\0');
6046 /* Subroutine of handle_braces. Returns true if the current
6047 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6049 input_spec_matches (const char *atom, const char *end_atom)
6051 return (input_file_compiler
6052 && input_file_compiler->suffix
6053 && input_file_compiler->suffix[0] != '\0'
6054 && !strncmp (input_file_compiler->suffix + 1, atom,
6056 && input_file_compiler->suffix[end_atom - atom + 1] == '\0');
6059 /* Subroutine of handle_braces. Returns true if a switch
6060 matching the atom bracketed by ATOM and END_ATOM appeared on the
6063 switch_matches (const char *atom, const char *end_atom, int starred)
6066 int len = end_atom - atom;
6067 int plen = starred ? len : -1;
6069 for (i = 0; i < n_switches; i++)
6070 if (!strncmp (switches[i].part1, atom, len)
6071 && (starred || switches[i].part1[len] == '\0')
6072 && check_live_switch (i, plen))
6078 /* Inline subroutine of handle_braces. Mark all of the switches which
6079 match ATOM (extends to END_ATOM; STARRED indicates whether there
6080 was a star after the atom) for later processing. */
6082 mark_matching_switches (const char *atom, const char *end_atom, int starred)
6085 int len = end_atom - atom;
6086 int plen = starred ? len : -1;
6088 for (i = 0; i < n_switches; i++)
6089 if (!strncmp (switches[i].part1, atom, len)
6090 && (starred || switches[i].part1[len] == '\0')
6091 && check_live_switch (i, plen))
6092 switches[i].ordering = 1;
6095 /* Inline subroutine of handle_braces. Process all the currently
6096 marked switches through give_switch, and clear the marks. */
6098 process_marked_switches (void)
6102 for (i = 0; i < n_switches; i++)
6103 if (switches[i].ordering == 1)
6105 switches[i].ordering = 0;
6110 /* Handle a %{ ... } construct. P points just inside the leading {.
6111 Returns a pointer one past the end of the brace block, or 0
6112 if we call do_spec_1 and that returns -1. */
6115 handle_braces (const char *p)
6117 const char *atom, *end_atom;
6118 const char *d_atom = NULL, *d_end_atom = NULL;
6119 const char *orig = p;
6127 bool a_must_be_last = false;
6128 bool ordered_set = false;
6129 bool disjunct_set = false;
6130 bool disj_matched = false;
6131 bool disj_starred = true;
6132 bool n_way_choice = false;
6133 bool n_way_matched = false;
6135 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6142 /* Scan one "atom" (S in the description above of %{}, possibly
6143 with '!', '.', '@', ',', or '*' modifiers). */
6145 a_is_suffix = false;
6146 a_is_starred = false;
6147 a_is_negated = false;
6148 a_is_spectype = false;
6152 p++, a_is_negated = true;
6156 p++, a_is_suffix = true;
6158 p++, a_is_spectype = true;
6161 while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '='
6162 || *p == ',' || *p == '.' || *p == '@')
6167 p++, a_is_starred = 1;
6173 /* Substitute the switch(es) indicated by the current atom. */
6175 if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
6176 || a_is_spectype || atom == end_atom)
6179 mark_matching_switches (atom, end_atom, a_is_starred);
6182 process_marked_switches ();
6186 /* Substitute some text if the current atom appears as a switch
6188 disjunct_set = true;
6192 if (atom == end_atom)
6194 if (!n_way_choice || disj_matched || *p == '|'
6195 || a_is_negated || a_is_suffix || a_is_spectype
6199 /* An empty term may appear as the last choice of an
6200 N-way choice set; it means "otherwise". */
6201 a_must_be_last = true;
6202 disj_matched = !n_way_matched;
6203 disj_starred = false;
6207 if ((a_is_suffix || a_is_spectype) && a_is_starred)
6211 disj_starred = false;
6213 /* Don't bother testing this atom if we already have a
6215 if (!disj_matched && !n_way_matched)
6218 a_matched = input_suffix_matches (atom, end_atom);
6219 else if (a_is_spectype)
6220 a_matched = input_spec_matches (atom, end_atom);
6222 a_matched = switch_matches (atom, end_atom, a_is_starred);
6224 if (a_matched != a_is_negated)
6226 disj_matched = true;
6228 d_end_atom = end_atom;
6235 /* Found the body, that is, the text to substitute if the
6236 current disjunction matches. */
6237 p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
6238 disj_matched && !n_way_matched);
6242 /* If we have an N-way choice, reset state for the next
6246 n_way_choice = true;
6247 n_way_matched |= disj_matched;
6248 disj_matched = false;
6249 disj_starred = true;
6250 d_atom = d_end_atom = NULL;
6259 while (*p++ != '}');
6264 fatal ("braced spec '%s' is invalid at '%c'", orig, *p);
6269 /* Subroutine of handle_braces. Scan and process a brace substitution body
6270 (X in the description of %{} syntax). P points one past the colon;
6271 ATOM and END_ATOM bracket the first atom which was found to be true
6272 (present) in the current disjunction; STARRED indicates whether all
6273 the atoms in the current disjunction were starred (for syntax validation);
6274 MATCHED indicates whether the disjunction matched or not, and therefore
6275 whether or not the body is to be processed through do_spec_1 or just
6276 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6280 process_brace_body (const char *p, const char *atom, const char *end_atom,
6281 int starred, int matched)
6283 const char *body, *end_body;
6284 unsigned int nesting_level;
6285 bool have_subst = false;
6287 /* Locate the closing } or ;, honoring nested braces.
6288 Trim trailing whitespace. */
6297 if (!--nesting_level)
6300 else if (*p == ';' && nesting_level == 1)
6302 else if (*p == '%' && p[1] == '*' && nesting_level == 1)
6304 else if (*p == '\0')
6310 while (end_body[-1] == ' ' || end_body[-1] == '\t')
6313 if (have_subst && !starred)
6318 /* Copy the substitution body to permanent storage and execute it.
6319 If have_subst is false, this is a simple matter of running the
6320 body through do_spec_1... */
6321 char *string = save_string (body, end_body - body);
6324 if (do_spec_1 (string, 0, NULL) < 0)
6329 /* ... but if have_subst is true, we have to process the
6330 body once for each matching switch, with %* set to the
6331 variant part of the switch. */
6332 unsigned int hard_match_len = end_atom - atom;
6335 for (i = 0; i < n_switches; i++)
6336 if (!strncmp (switches[i].part1, atom, hard_match_len)
6337 && check_live_switch (i, hard_match_len))
6339 if (do_spec_1 (string, 0,
6340 &switches[i].part1[hard_match_len]) < 0)
6342 /* Pass any arguments this switch has. */
6344 suffix_subst = NULL;
6352 fatal ("braced spec body '%s' is invalid", body);
6355 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6356 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6357 spec, or -1 if either exact match or %* is used.
6359 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
6360 whose value does not begin with "no-" is obsoleted by the same value
6361 with the "no-", similarly for a switch with the "no-" prefix. */
6364 check_live_switch (int switchnum, int prefix_length)
6366 const char *name = switches[switchnum].part1;
6369 /* If we already processed this switch and determined if it was
6370 live or not, return our past determination. */
6371 if (switches[switchnum].live_cond != 0)
6372 return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0
6373 && (switches[switchnum].live_cond & SWITCH_FALSE) == 0
6374 && (switches[switchnum].live_cond & SWITCH_IGNORE) == 0);
6376 /* In the common case of {<at-most-one-letter>*}, a negating
6377 switch would always match, so ignore that case. We will just
6378 send the conflicting switches to the compiler phase. */
6379 if (prefix_length >= 0 && prefix_length <= 1)
6382 /* Now search for duplicate in a manner that depends on the name. */
6386 for (i = switchnum + 1; i < n_switches; i++)
6387 if (switches[i].part1[0] == 'O')
6389 switches[switchnum].validated = 1;
6390 switches[switchnum].live_cond = SWITCH_FALSE;
6395 case 'W': case 'f': case 'm':
6396 if (! strncmp (name + 1, "no-", 3))
6398 /* We have Xno-YYY, search for XYYY. */
6399 for (i = switchnum + 1; i < n_switches; i++)
6400 if (switches[i].part1[0] == name[0]
6401 && ! strcmp (&switches[i].part1[1], &name[4]))
6403 switches[switchnum].validated = 1;
6404 switches[switchnum].live_cond = SWITCH_FALSE;
6410 /* We have XYYY, search for Xno-YYY. */
6411 for (i = switchnum + 1; i < n_switches; i++)
6412 if (switches[i].part1[0] == name[0]
6413 && switches[i].part1[1] == 'n'
6414 && switches[i].part1[2] == 'o'
6415 && switches[i].part1[3] == '-'
6416 && !strcmp (&switches[i].part1[4], &name[1]))
6418 switches[switchnum].validated = 1;
6419 switches[switchnum].live_cond = SWITCH_FALSE;
6426 /* Otherwise the switch is live. */
6427 switches[switchnum].live_cond |= SWITCH_LIVE;
6431 /* Pass a switch to the current accumulating command
6432 in the same form that we received it.
6433 SWITCHNUM identifies the switch; it is an index into
6434 the vector of switches gcc received, which is `switches'.
6435 This cannot fail since it never finishes a command line.
6437 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6440 give_switch (int switchnum, int omit_first_word)
6442 if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0)
6445 if (!omit_first_word)
6447 do_spec_1 ("-", 0, NULL);
6448 do_spec_1 (switches[switchnum].part1, 1, NULL);
6451 if (switches[switchnum].args != 0)
6454 for (p = switches[switchnum].args; *p; p++)
6456 const char *arg = *p;
6458 do_spec_1 (" ", 0, NULL);
6461 unsigned length = strlen (arg);
6464 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
6465 if (arg[length] == '.')
6467 (CONST_CAST(char *, arg))[length] = 0;
6471 do_spec_1 (arg, 1, NULL);
6473 (CONST_CAST(char *, arg))[length] = '.';
6474 do_spec_1 (suffix_subst, 1, NULL);
6477 do_spec_1 (arg, 1, NULL);
6481 do_spec_1 (" ", 0, NULL);
6482 switches[switchnum].validated = 1;
6485 /* Search for a file named NAME trying various prefixes including the
6486 user's -B prefix and some standard ones.
6487 Return the absolute file name found. If nothing is found, return NAME. */
6490 find_file (const char *name)
6492 char *newname = find_a_file (&startfile_prefixes, name, R_OK, true);
6493 return newname ? newname : name;
6496 /* Determine whether a directory exists. If LINKER, return 0 for
6497 certain fixed names not needed by the linker. */
6500 is_directory (const char *path1, bool linker)
6507 /* Ensure the string ends with "/.". The resulting path will be a
6508 directory even if the given path is a symbolic link. */
6509 len1 = strlen (path1);
6510 path = (char *) alloca (3 + len1);
6511 memcpy (path, path1, len1);
6513 if (!IS_DIR_SEPARATOR (cp[-1]))
6514 *cp++ = DIR_SEPARATOR;
6518 /* Exclude directories that the linker is known to search. */
6520 && IS_DIR_SEPARATOR (path[0])
6522 && strncmp (path + 1, "lib", 3) == 0)
6524 && strncmp (path + 1, "usr", 3) == 0
6525 && IS_DIR_SEPARATOR (path[4])
6526 && strncmp (path + 5, "lib", 3) == 0)))
6529 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
6532 /* Set up the various global variables to indicate that we're processing
6533 the input file named FILENAME. */
6536 set_input (const char *filename)
6540 input_filename = filename;
6541 input_filename_length = strlen (input_filename);
6542 input_basename = lbasename (input_filename);
6544 /* Find a suffix starting with the last period,
6545 and set basename_length to exclude that suffix. */
6546 basename_length = strlen (input_basename);
6547 suffixed_basename_length = basename_length;
6548 p = input_basename + basename_length;
6549 while (p != input_basename && *p != '.')
6551 if (*p == '.' && p != input_basename)
6553 basename_length = p - input_basename;
6554 input_suffix = p + 1;
6559 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6560 we will need to do a stat on the input_filename. The
6561 INPUT_STAT_SET signals that the stat is needed. */
6565 /* On fatal signals, delete all the temporary files. */
6568 fatal_error (int signum)
6570 signal (signum, SIG_DFL);
6571 delete_failure_queue ();
6572 delete_temp_files ();
6573 /* Get the same signal again, this time not handled,
6574 so its normal effect occurs. */
6575 kill (getpid (), signum);
6578 /* Compare the contents of the two files named CMPFILE[0] and
6579 CMPFILE[1]. Return zero if they're identical, nonzero
6583 compare_files (char *cmpfile[])
6586 FILE *temp[2] = { NULL, NULL };
6592 void *map[2] = { NULL, NULL };
6594 for (i = 0; i < 2; i++)
6598 if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode))
6600 error ("%s: could not determine length of compare-debug file %s",
6601 input_filename, cmpfile[i]);
6606 length[i] = st.st_size;
6609 if (!ret && length[0] != length[1])
6611 error ("%s: -fcompare-debug failure (length)", input_filename);
6616 for (i = 0; i < 2; i++)
6618 int fd = open (cmpfile[i], O_RDONLY);
6621 error ("%s: could not open compare-debug file %s",
6622 input_filename, cmpfile[i]);
6627 map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0);
6630 if (map[i] == (void *) MAP_FAILED)
6639 if (memcmp (map[0], map[1], length[0]) != 0)
6641 error ("%s: -fcompare-debug failure", input_filename);
6646 for (i = 0; i < 2; i++)
6648 munmap ((caddr_t) map[i], length[i]);
6657 for (i = 0; i < 2; i++)
6659 temp[i] = fopen (cmpfile[i], "r");
6662 error ("%s: could not open compare-debug file %s",
6663 input_filename, cmpfile[i]);
6669 if (!ret && temp[0] && temp[1])
6673 c0 = fgetc (temp[0]);
6674 c1 = fgetc (temp[1]);
6678 error ("%s: -fcompare-debug failure",
6688 for (i = 1; i >= 0; i--)
6697 extern int main (int, char **);
6700 main (int argc, char **argv)
6704 int linker_was_run = 0;
6705 int lang_n_infiles = 0;
6706 int num_linker_inputs = 0;
6707 char *explicit_link_files;
6710 struct user_specs *uptr;
6711 char **old_argv = argv;
6713 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6714 on ?: in file-scope variable initializations. */
6715 asm_debug = ASM_DEBUG_SPEC;
6717 p = argv[0] + strlen (argv[0]);
6718 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
6722 xmalloc_set_program_name (programname);
6724 expandargv (&argc, &argv);
6726 /* Determine if any expansions were made. */
6727 if (argv != old_argv)
6728 at_file_supplied = true;
6730 prune_options (&argc, &argv);
6732 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6733 /* Perform host dependent initialization when needed. */
6734 GCC_DRIVER_HOST_INITIALIZATION;
6737 /* Unlock the stdio streams. */
6738 unlock_std_streams ();
6740 gcc_init_libintl ();
6742 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
6743 signal (SIGINT, fatal_error);
6745 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
6746 signal (SIGHUP, fatal_error);
6748 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
6749 signal (SIGTERM, fatal_error);
6751 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
6752 signal (SIGPIPE, fatal_error);
6755 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6756 receive the signal. A different setting is inheritable */
6757 signal (SIGCHLD, SIG_DFL);
6760 /* Allocate the argument vector. */
6763 obstack_init (&obstack);
6765 /* Build multilib_select, et. al from the separate lines that make up each
6766 multilib selection. */
6768 const char *const *q = multilib_raw;
6771 obstack_init (&multilib_obstack);
6772 while ((p = *q++) != (char *) 0)
6773 obstack_grow (&multilib_obstack, p, strlen (p));
6775 obstack_1grow (&multilib_obstack, 0);
6776 multilib_select = XOBFINISH (&multilib_obstack, const char *);
6778 q = multilib_matches_raw;
6779 while ((p = *q++) != (char *) 0)
6780 obstack_grow (&multilib_obstack, p, strlen (p));
6782 obstack_1grow (&multilib_obstack, 0);
6783 multilib_matches = XOBFINISH (&multilib_obstack, const char *);
6785 q = multilib_exclusions_raw;
6786 while ((p = *q++) != (char *) 0)
6787 obstack_grow (&multilib_obstack, p, strlen (p));
6789 obstack_1grow (&multilib_obstack, 0);
6790 multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
6793 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
6796 obstack_1grow (&multilib_obstack, ' ');
6797 obstack_grow (&multilib_obstack,
6798 multilib_defaults_raw[i],
6799 strlen (multilib_defaults_raw[i]));
6803 obstack_1grow (&multilib_obstack, 0);
6804 multilib_defaults = XOBFINISH (&multilib_obstack, const char *);
6807 /* Set up to remember the pathname of gcc and any options
6808 needed for collect. We use argv[0] instead of programname because
6809 we need the complete pathname. */
6810 obstack_init (&collect_obstack);
6811 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6812 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
6813 xputenv (XOBFINISH (&collect_obstack, char *));
6815 #ifdef INIT_ENVIRONMENT
6816 /* Set up any other necessary machine specific environment variables. */
6817 xputenv (INIT_ENVIRONMENT);
6820 /* Make a table of what switches there are (switches, n_switches).
6821 Make a table of specified input files (infiles, n_infiles).
6822 Decode switches that are handled locally. */
6824 process_command (argc, CONST_CAST2 (const char **, char **, argv));
6826 /* Initialize the vector of specs to just the default.
6827 This means one element containing 0s, as a terminator. */
6829 compilers = XNEWVAR (struct compiler, sizeof default_compilers);
6830 memcpy (compilers, default_compilers, sizeof default_compilers);
6831 n_compilers = n_default_compilers;
6833 /* Read specs from a file if there is one. */
6835 machine_suffix = concat (spec_machine, dir_separator_str,
6836 spec_version, dir_separator_str, NULL);
6837 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
6839 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true);
6840 /* Read the specs file unless it is a default one. */
6841 if (specs_file != 0 && strcmp (specs_file, "specs"))
6842 read_specs (specs_file, TRUE);
6846 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6847 for any override of as, ld and libraries. */
6848 specs_file = (char *) alloca (strlen (standard_exec_prefix)
6849 + strlen (just_machine_suffix) + sizeof ("specs"));
6851 strcpy (specs_file, standard_exec_prefix);
6852 strcat (specs_file, just_machine_suffix);
6853 strcat (specs_file, "specs");
6854 if (access (specs_file, R_OK) == 0)
6855 read_specs (specs_file, TRUE);
6857 /* Process any configure-time defaults specified for the command line
6858 options, via OPTION_DEFAULT_SPECS. */
6859 for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
6860 do_option_spec (option_default_specs[i].name,
6861 option_default_specs[i].spec);
6863 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6864 of the command line. */
6866 for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
6867 do_self_spec (driver_self_specs[i]);
6871 enum save_temps save;
6873 if (!compare_debug_second)
6875 n_switches_debug_check[1] = n_switches;
6876 switches_debug_check[1] = XDUPVEC (struct switchstr, switches,
6879 do_self_spec ("%:compare-debug-self-opt()");
6880 n_switches_debug_check[0] = n_switches;
6881 switches_debug_check[0] = switches;
6883 n_switches = n_switches_debug_check[1];
6884 switches = switches_debug_check[1];
6887 /* Avoid crash when computing %j in this early. */
6888 save = save_temps_flag;
6889 save_temps_flag = SAVE_TEMPS_NONE;
6891 compare_debug = -compare_debug;
6892 do_self_spec ("%:compare-debug-self-opt()");
6894 save_temps_flag = save;
6896 if (!compare_debug_second)
6898 n_switches_debug_check[1] = n_switches;
6899 switches_debug_check[1] = switches;
6900 compare_debug = -compare_debug;
6901 n_switches = n_switches_debug_check[0];
6902 switches = switches_debug_check[0];
6906 /* If not cross-compiling, look for executables in the standard
6908 if (*cross_compile == '0')
6910 if (*md_exec_prefix)
6912 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
6913 PREFIX_PRIORITY_LAST, 0, 0);
6917 /* Process sysroot_suffix_spec. */
6918 if (*sysroot_suffix_spec != 0
6919 && do_spec_2 (sysroot_suffix_spec) == 0)
6921 if (argbuf_index > 1)
6922 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6923 else if (argbuf_index == 1)
6924 target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
6927 #ifdef HAVE_LD_SYSROOT
6928 /* Pass the --sysroot option to the linker, if it supports that. If
6929 there is a sysroot_suffix_spec, it has already been processed by
6930 this point, so target_system_root really is the system root we
6932 if (target_system_root)
6934 obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6935 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
6936 set_spec ("link", XOBFINISH (&obstack, const char *));
6940 /* Process sysroot_hdrs_suffix_spec. */
6941 if (*sysroot_hdrs_suffix_spec != 0
6942 && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
6944 if (argbuf_index > 1)
6945 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6946 else if (argbuf_index == 1)
6947 target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
6950 /* Look for startfiles in the standard places. */
6951 if (*startfile_prefix_spec != 0
6952 && do_spec_2 (startfile_prefix_spec) == 0
6953 && do_spec_1 (" ", 0, NULL) == 0)
6956 for (ndx = 0; ndx < argbuf_index; ndx++)
6957 add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS",
6958 PREFIX_PRIORITY_LAST, 0, 1);
6960 /* We should eventually get rid of all these and stick to
6961 startfile_prefix_spec exclusively. */
6962 else if (*cross_compile == '0' || target_system_root)
6964 if (*md_startfile_prefix)
6965 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
6966 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
6968 if (*md_startfile_prefix_1)
6969 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
6970 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
6972 /* If standard_startfile_prefix is relative, base it on
6973 standard_exec_prefix. This lets us move the installed tree
6974 as a unit. If GCC_EXEC_PREFIX is defined, base
6975 standard_startfile_prefix on that as well.
6977 If the prefix is relative, only search it for native compilers;
6978 otherwise we will search a directory containing host libraries. */
6979 if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
6980 add_sysrooted_prefix (&startfile_prefixes,
6981 standard_startfile_prefix, "BINUTILS",
6982 PREFIX_PRIORITY_LAST, 0, 1);
6983 else if (*cross_compile == '0')
6985 add_prefix (&startfile_prefixes,
6986 concat (gcc_exec_prefix
6987 ? gcc_exec_prefix : standard_exec_prefix,
6989 standard_startfile_prefix, NULL),
6990 NULL, PREFIX_PRIORITY_LAST, 0, 1);
6993 /* Sysrooted prefixes are relocated because target_system_root is
6994 also relocated by gcc_exec_prefix. */
6995 if (*standard_startfile_prefix_1)
6996 add_sysrooted_prefix (&startfile_prefixes,
6997 standard_startfile_prefix_1, "BINUTILS",
6998 PREFIX_PRIORITY_LAST, 0, 1);
6999 if (*standard_startfile_prefix_2)
7000 add_sysrooted_prefix (&startfile_prefixes,
7001 standard_startfile_prefix_2, "BINUTILS",
7002 PREFIX_PRIORITY_LAST, 0, 1);
7005 /* Process any user specified specs in the order given on the command
7007 for (uptr = user_specs_head; uptr; uptr = uptr->next)
7009 char *filename = find_a_file (&startfile_prefixes, uptr->filename,
7011 read_specs (filename ? filename : uptr->filename, FALSE);
7014 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7015 if (gcc_exec_prefix)
7016 gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
7017 spec_version, dir_separator_str, NULL);
7019 /* Now we have the specs.
7020 Set the `valid' bits for switches that match anything in any spec. */
7022 validate_all_switches ();
7024 /* Now that we have the switches and the specs, set
7025 the subdirectory based on the options. */
7026 set_multilib_dir ();
7028 /* Warn about any switches that no pass was interested in. */
7030 for (i = 0; (int) i < n_switches; i++)
7031 if (! switches[i].validated)
7032 error ("unrecognized option '-%s'", switches[i].part1);
7034 /* Obey some of the options. */
7036 if (print_search_dirs)
7038 printf (_("install: %s%s\n"),
7039 gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
7040 gcc_exec_prefix ? "" : machine_suffix);
7041 printf (_("programs: %s\n"),
7042 build_search_list (&exec_prefixes, "", false, false));
7043 printf (_("libraries: %s\n"),
7044 build_search_list (&startfile_prefixes, "", false, true));
7048 if (print_file_name)
7050 printf ("%s\n", find_file (print_file_name));
7054 if (print_prog_name)
7056 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0);
7057 printf ("%s\n", (newname ? newname : print_prog_name));
7061 if (print_multi_lib)
7063 print_multilib_info ();
7067 if (print_multi_directory)
7069 if (multilib_dir == NULL)
7072 printf ("%s\n", multilib_dir);
7078 if (target_system_root)
7080 if (target_sysroot_suffix)
7081 printf ("%s%s\n", target_system_root, target_sysroot_suffix);
7083 printf ("%s\n", target_system_root);
7088 if (print_multi_os_directory)
7090 if (multilib_os_dir == NULL)
7093 printf ("%s\n", multilib_os_dir);
7097 if (print_sysroot_headers_suffix)
7099 if (*sysroot_hdrs_suffix_spec)
7101 printf("%s\n", (target_sysroot_hdrs_suffix
7102 ? target_sysroot_hdrs_suffix
7107 /* The error status indicates that only one set of fixed
7108 headers should be built. */
7109 fatal ("not configured with sysroot headers suffix");
7112 if (print_help_list)
7118 printf (_("\nFor bug reporting instructions, please see:\n"));
7119 printf ("%s.\n", bug_report_url);
7124 /* We do not exit here. Instead we have created a fake input file
7125 called 'help-dummy' which needs to be compiled, and we pass this
7126 on the various sub-processes, along with the --help switch.
7127 Ensure their output appears after ours. */
7128 fputc ('\n', stdout);
7134 printf (_("%s %s%s\n"), programname, pkgversion_string,
7136 printf ("Copyright %s 2009 Free Software Foundation, Inc.\n",
7138 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7139 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7144 /* We do not exit here. We use the same mechanism of --help to print
7145 the version of the sub-processes. */
7146 fputc ('\n', stdout);
7155 notice ("Target: %s\n", spec_machine);
7156 notice ("Configured with: %s\n", configuration_arguments);
7158 #ifdef THREAD_MODEL_SPEC
7159 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7160 but there's no point in doing all this processing just to get
7161 thread_model back. */
7162 obstack_init (&obstack);
7163 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
7164 obstack_1grow (&obstack, '\0');
7165 thrmod = XOBFINISH (&obstack, const char *);
7167 thrmod = thread_model;
7170 notice ("Thread model: %s\n", thrmod);
7172 /* compiler_version is truncated at the first space when initialized
7173 from version string, so truncate version_string at the first space
7174 before comparing. */
7175 for (n = 0; version_string[n]; n++)
7176 if (version_string[n] == ' ')
7179 if (! strncmp (version_string, compiler_version, n)
7180 && compiler_version[n] == 0)
7181 notice ("gcc version %s %s\n", version_string, pkgversion_string);
7183 notice ("gcc driver version %s %sexecuting gcc version %s\n",
7184 version_string, pkgversion_string, compiler_version);
7190 if (n_infiles == added_libraries)
7191 fatal ("no input files");
7193 /* Make a place to record the compiler output file names
7194 that correspond to the input files. */
7197 i += lang_specific_extra_outfiles;
7198 outfiles = XCNEWVEC (const char *, i);
7200 /* Record which files were specified explicitly as link input. */
7202 explicit_link_files = XCNEWVEC (char, n_infiles);
7205 combine_inputs = true;
7207 combine_inputs = false;
7209 for (i = 0; (int) i < n_infiles; i++)
7211 const char *name = infiles[i].name;
7212 struct compiler *compiler = lookup_compiler (name,
7214 infiles[i].language);
7216 if (compiler && !(compiler->combinable))
7217 combine_inputs = false;
7219 if (lang_n_infiles > 0 && compiler != input_file_compiler
7220 && infiles[i].language && infiles[i].language[0] != '*')
7221 infiles[i].incompiler = compiler;
7225 input_file_compiler = compiler;
7226 infiles[i].incompiler = compiler;
7230 /* Since there is no compiler for this input file, assume it is a
7232 explicit_link_files[i] = 1;
7233 infiles[i].incompiler = NULL;
7235 infiles[i].compiled = false;
7236 infiles[i].preprocessed = false;
7239 if (!combine_inputs && have_c && have_o && lang_n_infiles > 1)
7240 fatal ("cannot specify -o with -c or -S with multiple files");
7242 if (combine_flag && save_temps_flag)
7244 bool save_combine_inputs = combine_inputs;
7245 /* Must do a separate pre-processing pass for C & Objective-C files, to
7246 obtain individual .i files. */
7248 combine_inputs = false;
7249 for (i = 0; (int) i < n_infiles; i++)
7251 int this_file_error = 0;
7253 input_file_number = i;
7254 set_input (infiles[i].name);
7255 if (infiles[i].incompiler
7256 && (infiles[i].incompiler)->needs_preprocessing)
7257 input_file_compiler = infiles[i].incompiler;
7261 if (input_file_compiler)
7263 if (input_file_compiler->spec[0] == '#')
7265 error ("%s: %s compiler not installed on this system",
7266 input_filename, &input_file_compiler->spec[1]);
7267 this_file_error = 1;
7271 value = do_spec (input_file_compiler->spec);
7272 infiles[i].preprocessed = true;
7273 if (!have_o_argbuf_index)
7274 fatal ("spec '%s' is invalid", input_file_compiler->spec);
7275 infiles[i].name = argbuf[have_o_argbuf_index];
7276 infiles[i].incompiler
7277 = lookup_compiler (infiles[i].name,
7278 strlen (infiles[i].name),
7279 infiles[i].language);
7282 this_file_error = 1;
7286 if (this_file_error)
7288 delete_failure_queue ();
7292 clear_failure_queue ();
7294 combine_inputs = save_combine_inputs;
7297 for (i = 0; (int) i < n_infiles; i++)
7299 int this_file_error = 0;
7301 /* Tell do_spec what to substitute for %i. */
7303 input_file_number = i;
7304 set_input (infiles[i].name);
7306 if (infiles[i].compiled)
7309 /* Use the same thing in %o, unless cp->spec says otherwise. */
7311 outfiles[i] = input_filename;
7313 /* Figure out which compiler from the file's suffix. */
7315 if (! combine_inputs)
7317 = lookup_compiler (infiles[i].name, input_filename_length,
7318 infiles[i].language);
7320 input_file_compiler = infiles[i].incompiler;
7322 if (input_file_compiler)
7324 /* Ok, we found an applicable compiler. Run its spec. */
7326 if (input_file_compiler->spec[0] == '#')
7328 error ("%s: %s compiler not installed on this system",
7329 input_filename, &input_file_compiler->spec[1]);
7330 this_file_error = 1;
7336 if (debug_check_temp_file[0])
7337 free (debug_check_temp_file[0]);
7338 debug_check_temp_file[0] = NULL;
7340 if (debug_check_temp_file[1])
7341 free (debug_check_temp_file[1]);
7342 debug_check_temp_file[1] = NULL;
7345 value = do_spec (input_file_compiler->spec);
7346 infiles[i].compiled = true;
7348 this_file_error = 1;
7349 else if (compare_debug && debug_check_temp_file[0])
7352 error ("Recompiling with -fcompare-debug");
7354 compare_debug = -compare_debug;
7355 n_switches = n_switches_debug_check[1];
7356 switches = switches_debug_check[1];
7358 value = do_spec (input_file_compiler->spec);
7360 compare_debug = -compare_debug;
7361 n_switches = n_switches_debug_check[0];
7362 switches = switches_debug_check[0];
7366 error ("during -fcompare-debug recompilation");
7367 this_file_error = 1;
7370 gcc_assert (debug_check_temp_file[1]
7371 && strcmp (debug_check_temp_file[0],
7372 debug_check_temp_file[1]));
7375 error ("Comparing final insns dumps");
7377 if (compare_files (debug_check_temp_file))
7378 this_file_error = 1;
7383 if (debug_check_temp_file[0])
7384 free (debug_check_temp_file[0]);
7385 debug_check_temp_file[0] = NULL;
7387 if (debug_check_temp_file[1])
7388 free (debug_check_temp_file[1]);
7389 debug_check_temp_file[1] = NULL;
7394 /* If this file's name does not contain a recognized suffix,
7395 record it as explicit linker input. */
7398 explicit_link_files[i] = 1;
7400 /* Clear the delete-on-failure queue, deleting the files in it
7401 if this compilation failed. */
7403 if (this_file_error)
7405 delete_failure_queue ();
7408 /* If this compilation succeeded, don't delete those files later. */
7409 clear_failure_queue ();
7412 /* Reset the input file name to the first compile/object file name, for use
7413 with %b in LINK_SPEC. We use the first input file that we can find
7414 a compiler to compile it instead of using infiles.language since for
7415 languages other than C we use aliases that we then lookup later. */
7420 for (i = 0; i < n_infiles ; i++)
7421 if (infiles[i].language && infiles[i].language[0] != '*')
7423 set_input (infiles[i].name);
7428 if (error_count == 0)
7430 /* Make sure INPUT_FILE_NUMBER points to first available open
7432 input_file_number = n_infiles;
7433 if (lang_specific_pre_link ())
7437 /* Determine if there are any linker input files. */
7438 num_linker_inputs = 0;
7439 for (i = 0; (int) i < n_infiles; i++)
7440 if (explicit_link_files[i] || outfiles[i] != NULL)
7441 num_linker_inputs++;
7443 /* Run ld to link all the compiler output files. */
7445 if (num_linker_inputs > 0 && error_count == 0 && print_subprocess_help < 2)
7447 int tmp = execution_count;
7449 /* We'll use ld if we can't find collect2. */
7450 if (! strcmp (linker_name_spec, "collect2"))
7452 char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
7454 linker_name_spec = "ld";
7456 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7458 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false);
7459 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true);
7461 if (print_subprocess_help == 1)
7463 printf (_("\nLinker options\n==============\n\n"));
7464 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7465 " to the linker.\n\n"));
7468 value = do_spec (link_command_spec);
7471 linker_was_run = (tmp != execution_count);
7474 /* If options said don't run linker,
7475 complain about input files to be given to the linker. */
7477 if (! linker_was_run && error_count == 0)
7478 for (i = 0; (int) i < n_infiles; i++)
7479 if (explicit_link_files[i]
7480 && !(infiles[i].language && infiles[i].language[0] == '*'))
7481 error ("%s: linker input file unused because linking not done",
7484 /* Delete some or all of the temporary files we made. */
7487 delete_failure_queue ();
7488 delete_temp_files ();
7490 if (print_help_list)
7492 printf (("\nFor bug reporting instructions, please see:\n"));
7493 printf ("%s\n", bug_report_url);
7496 return (signal_count != 0 ? 2
7497 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
7501 /* Find the proper compilation spec for the file name NAME,
7502 whose length is LENGTH. LANGUAGE is the specified language,
7503 or 0 if this file is to be passed to the linker. */
7505 static struct compiler *
7506 lookup_compiler (const char *name, size_t length, const char *language)
7508 struct compiler *cp;
7510 /* If this was specified by the user to be a linker input, indicate that. */
7511 if (language != 0 && language[0] == '*')
7514 /* Otherwise, look for the language, if one is spec'd. */
7517 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7518 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
7521 error ("language %s not recognized", language);
7525 /* Look for a suffix. */
7526 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7528 if (/* The suffix `-' matches only the file name `-'. */
7529 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
7530 || (strlen (cp->suffix) < length
7531 /* See if the suffix matches the end of NAME. */
7532 && !strcmp (cp->suffix,
7533 name + length - strlen (cp->suffix))
7538 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7539 /* Look again, but case-insensitively this time. */
7541 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7543 if (/* The suffix `-' matches only the file name `-'. */
7544 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
7545 || (strlen (cp->suffix) < length
7546 /* See if the suffix matches the end of NAME. */
7547 && ((!strcmp (cp->suffix,
7548 name + length - strlen (cp->suffix))
7549 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7550 && !strcasecmp (cp->suffix,
7551 name + length - strlen (cp->suffix)))
7557 if (cp >= compilers)
7559 if (cp->spec[0] != '@')
7560 /* A non-alias entry: return it. */
7563 /* An alias entry maps a suffix to a language.
7564 Search for the language; pass 0 for NAME and LENGTH
7565 to avoid infinite recursion if language not found. */
7566 return lookup_compiler (NULL, 0, cp->spec + 1);
7572 save_string (const char *s, int len)
7574 char *result = XNEWVEC (char, len + 1);
7576 memcpy (result, s, len);
7582 pfatal_with_name (const char *name)
7584 perror_with_name (name);
7585 delete_temp_files ();
7590 perror_with_name (const char *name)
7592 error ("%s: %s", name, xstrerror (errno));
7595 /* Output an error message and exit. */
7598 fancy_abort (const char *file, int line, const char *func)
7600 fatal_ice ("internal gcc abort in %s, at %s:%d", func, file, line);
7603 /* Output an error message and exit. */
7606 fatal_ice (const char *cmsgid, ...)
7610 va_start (ap, cmsgid);
7612 fprintf (stderr, "%s: ", programname);
7613 vfprintf (stderr, _(cmsgid), ap);
7615 fprintf (stderr, "\n");
7616 delete_temp_files ();
7617 exit (pass_exit_codes ? ICE_EXIT_CODE : 1);
7621 fatal (const char *cmsgid, ...)
7625 va_start (ap, cmsgid);
7627 fprintf (stderr, "%s: ", programname);
7628 vfprintf (stderr, _(cmsgid), ap);
7630 fprintf (stderr, "\n");
7631 delete_temp_files ();
7635 /* The argument is actually c-format, not gcc-internal-format,
7636 but because functions with identical names are used through
7637 the rest of the compiler with gcc-internal-format, we just
7638 need to hope all users of these functions use the common
7639 subset between c-format and gcc-internal-format. */
7642 error (const char *gmsgid, ...)
7646 va_start (ap, gmsgid);
7647 fprintf (stderr, "%s: ", programname);
7648 vfprintf (stderr, _(gmsgid), ap);
7651 fprintf (stderr, "\n");
7655 notice (const char *cmsgid, ...)
7659 va_start (ap, cmsgid);
7660 vfprintf (stderr, _(cmsgid), ap);
7665 validate_switches_from_spec (const char *spec)
7667 const char *p = spec;
7670 if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{')))
7671 /* We have a switch spec. */
7672 p = validate_switches (p + 1);
7676 validate_all_switches (void)
7678 struct compiler *comp;
7679 struct spec_list *spec;
7681 for (comp = compilers; comp->spec; comp++)
7682 validate_switches_from_spec (comp->spec);
7684 /* Look through the linked list of specs read from the specs file. */
7685 for (spec = specs; spec; spec = spec->next)
7686 validate_switches_from_spec (*spec->ptr_spec);
7688 validate_switches_from_spec (link_command_spec);
7691 /* Look at the switch-name that comes after START
7692 and mark as valid all supplied switches that match it. */
7695 validate_switches (const char *start)
7697 const char *p = start;
7701 bool suffix = false;
7702 bool starred = false;
7704 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7713 if (*p == '.' || *p == ',')
7717 while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
7718 || *p == ',' || *p == '.' || *p == '@')
7723 starred = true, p++;
7729 /* Mark all matching switches as valid. */
7730 for (i = 0; i < n_switches; i++)
7731 if (!strncmp (switches[i].part1, atom, len)
7732 && (starred || switches[i].part1[len] == 0))
7733 switches[i].validated = 1;
7737 if (*p && (p[-1] == '|' || p[-1] == '&'))
7740 if (*p && p[-1] == ':')
7742 while (*p && *p != ';' && *p != '}')
7747 if (*p == '{' || *p == '<')
7748 p = validate_switches (p+1);
7749 else if (p[0] == 'W' && p[1] == '{')
7750 p = validate_switches (p+2);
7757 if (*p && p[-1] == ';')
7771 static struct mdswitchstr *mdswitches;
7772 static int n_mdswitches;
7774 /* Check whether a particular argument was used. The first time we
7775 canonicalize the switches to keep only the ones we care about. */
7778 used_arg (const char *p, int len)
7783 const char *replace;
7788 static struct mswitchstr *mswitches;
7789 static int n_mswitches;
7794 struct mswitchstr *matches;
7798 /* Break multilib_matches into the component strings of string
7799 and replacement string. */
7800 for (q = multilib_matches; *q != '\0'; q++)
7805 = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
7807 q = multilib_matches;
7816 fatal ("multilib spec '%s' is invalid", multilib_matches);
7820 matches[i].len = q - matches[i].str;
7822 matches[i].replace = ++q;
7823 while (*q != ';' && *q != '\0')
7826 goto invalid_matches;
7829 matches[i].rep_len = q - matches[i].replace;
7835 /* Now build a list of the replacement string for switches that we care
7836 about. Make sure we allocate at least one entry. This prevents
7837 xmalloc from calling fatal, and prevents us from re-executing this
7840 = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1));
7841 for (i = 0; i < n_switches; i++)
7842 if ((switches[i].live_cond & SWITCH_IGNORE) == 0)
7844 int xlen = strlen (switches[i].part1);
7845 for (j = 0; j < cnt; j++)
7846 if (xlen == matches[j].len
7847 && ! strncmp (switches[i].part1, matches[j].str, xlen))
7849 mswitches[n_mswitches].str = matches[j].replace;
7850 mswitches[n_mswitches].len = matches[j].rep_len;
7851 mswitches[n_mswitches].replace = (char *) 0;
7852 mswitches[n_mswitches].rep_len = 0;
7858 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7859 on the command line nor any options mutually incompatible with
7861 for (i = 0; i < n_mdswitches; i++)
7865 for (q = multilib_options; *q != '\0'; q++)
7871 while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
7872 || strchr (" /", q[mdswitches[i].len]) == NULL)
7874 while (*q != ' ' && *q != '/' && *q != '\0')
7881 if (*q != ' ' && *q != '\0')
7883 while (*r != ' ' && *r != '\0')
7886 while (*q != ' ' && *q != '/' && *q != '\0')
7889 if (used_arg (r, q - r))
7894 mswitches[n_mswitches].str = mdswitches[i].str;
7895 mswitches[n_mswitches].len = mdswitches[i].len;
7896 mswitches[n_mswitches].replace = (char *) 0;
7897 mswitches[n_mswitches].rep_len = 0;
7910 for (i = 0; i < n_mswitches; i++)
7911 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
7918 default_arg (const char *p, int len)
7922 for (i = 0; i < n_mdswitches; i++)
7923 if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
7929 /* Work out the subdirectory to use based on the options. The format of
7930 multilib_select is a list of elements. Each element is a subdirectory
7931 name followed by a list of options followed by a semicolon. The format
7932 of multilib_exclusions is the same, but without the preceding
7933 directory. First gcc will check the exclusions, if none of the options
7934 beginning with an exclamation point are present, and all of the other
7935 options are present, then we will ignore this completely. Passing
7936 that, gcc will consider each multilib_select in turn using the same
7937 rules for matching the options. If a match is found, that subdirectory
7941 set_multilib_dir (void)
7944 unsigned int this_path_len;
7945 const char *this_path, *this_arg;
7946 const char *start, *end;
7948 int ok, ndfltok, first;
7951 start = multilib_defaults;
7952 while (*start == ' ' || *start == '\t')
7954 while (*start != '\0')
7957 while (*start != ' ' && *start != '\t' && *start != '\0')
7959 while (*start == ' ' || *start == '\t')
7967 mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches);
7968 for (start = multilib_defaults; *start != '\0'; start = end + 1)
7970 while (*start == ' ' || *start == '\t')
7976 for (end = start + 1;
7977 *end != ' ' && *end != '\t' && *end != '\0'; end++)
7980 obstack_grow (&multilib_obstack, start, end - start);
7981 obstack_1grow (&multilib_obstack, 0);
7982 mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
7983 mdswitches[i++].len = end - start;
7990 p = multilib_exclusions;
7993 /* Ignore newlines. */
8000 /* Check the arguments. */
8007 fatal ("multilib exclusions '%s' is invalid",
8008 multilib_exclusions);
8018 while (*p != ' ' && *p != ';')
8021 goto invalid_exclusions;
8025 if (*this_arg != '!')
8033 ok = used_arg (this_arg, p - this_arg);
8048 p = multilib_select;
8051 /* Ignore newlines. */
8058 /* Get the initial path. */
8065 fatal ("multilib select '%s' is invalid",
8070 this_path_len = p - this_path;
8072 /* Check the arguments. */
8079 goto invalid_select;
8088 while (*p != ' ' && *p != ';')
8091 goto invalid_select;
8095 if (*this_arg != '!')
8103 /* If this is a default argument, we can just ignore it.
8104 This is true even if this_arg begins with '!'. Beginning
8105 with '!' does not mean that this argument is necessarily
8106 inappropriate for this library: it merely means that
8107 there is a more specific library which uses this
8108 argument. If this argument is a default, we need not
8109 consider that more specific library. */
8110 ok = used_arg (this_arg, p - this_arg);
8117 if (default_arg (this_arg, p - this_arg))
8126 if (this_path_len != 1
8127 || this_path[0] != '.')
8129 char *new_multilib_dir = XNEWVEC (char, this_path_len + 1);
8132 strncpy (new_multilib_dir, this_path, this_path_len);
8133 new_multilib_dir[this_path_len] = '\0';
8134 q = strchr (new_multilib_dir, ':');
8137 multilib_dir = new_multilib_dir;
8144 const char *q = this_path, *end = this_path + this_path_len;
8146 while (q < end && *q != ':')
8150 char *new_multilib_os_dir = XNEWVEC (char, end - q);
8151 memcpy (new_multilib_os_dir, q + 1, end - q - 1);
8152 new_multilib_os_dir[end - q - 1] = '\0';
8153 multilib_os_dir = new_multilib_os_dir;
8161 if (multilib_dir == NULL && multilib_os_dir != NULL
8162 && strcmp (multilib_os_dir, ".") == 0)
8164 free (CONST_CAST (char *, multilib_os_dir));
8165 multilib_os_dir = NULL;
8167 else if (multilib_dir != NULL && multilib_os_dir == NULL)
8168 multilib_os_dir = multilib_dir;
8171 /* Print out the multiple library subdirectory selection
8172 information. This prints out a series of lines. Each line looks
8173 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8174 required. Only the desired options are printed out, the negative
8175 matches. The options are print without a leading dash. There are
8176 no spaces to make it easy to use the information in the shell.
8177 Each subdirectory is printed only once. This assumes the ordering
8178 generated by the genmultilib script. Also, we leave out ones that match
8182 print_multilib_info (void)
8184 const char *p = multilib_select;
8185 const char *last_path = 0, *this_path;
8187 unsigned int last_path_len = 0;
8192 /* Ignore newlines. */
8199 /* Get the initial path. */
8206 fatal ("multilib select '%s' is invalid", multilib_select);
8212 /* When --disable-multilib was used but target defines
8213 MULTILIB_OSDIRNAMES, entries starting with .: are there just
8214 to find multilib_os_dir, so skip them from output. */
8215 if (this_path[0] == '.' && this_path[1] == ':')
8218 /* Check for matches with the multilib_exclusions. We don't bother
8219 with the '!' in either list. If any of the exclusion rules match
8220 all of its options with the select rule, we skip it. */
8222 const char *e = multilib_exclusions;
8223 const char *this_arg;
8228 /* Ignore newlines. */
8235 /* Check the arguments. */
8244 fatal ("multilib exclusion '%s' is invalid",
8245 multilib_exclusions);
8256 while (*e != ' ' && *e != ';')
8259 goto invalid_exclusion;
8267 int len = e - this_arg;
8270 goto invalid_select;
8274 while (*q != ' ' && *q != ';')
8277 goto invalid_select;
8281 if (! strncmp (arg, this_arg,
8282 (len < q - arg) ? q - arg : len)
8283 || default_arg (this_arg, e - this_arg))
8313 /* If this is a duplicate, skip it. */
8314 skip = (last_path != 0
8315 && (unsigned int) (p - this_path) == last_path_len
8316 && ! strncmp (last_path, this_path, last_path_len));
8318 last_path = this_path;
8319 last_path_len = p - this_path;
8322 /* If this directory requires any default arguments, we can skip
8323 it. We will already have printed a directory identical to
8324 this one which does not require that default argument. */
8335 goto invalid_select;
8342 while (*q != ' ' && *q != ';')
8345 goto invalid_select;
8350 && default_arg (arg, q - arg))
8365 for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
8376 goto invalid_select;
8384 use_arg = *p != '!';
8389 while (*p != ' ' && *p != ';')
8392 goto invalid_select;
8404 /* If there are extra options, print them now. */
8405 if (multilib_extra && *multilib_extra)
8407 int print_at = TRUE;
8410 for (q = multilib_extra; *q != '\0'; q++)
8431 /* getenv built-in spec function.
8433 Returns the value of the environment variable given by its first
8434 argument, concatenated with the second argument. If the
8435 environment variable is not defined, a fatal error is issued. */
8438 getenv_spec_function (int argc, const char **argv)
8448 value = getenv (argv[0]);
8450 fatal ("environment variable \"%s\" not defined", argv[0]);
8452 /* We have to escape every character of the environment variable so
8453 they are not interpreted as active spec characters. A
8454 particularly painful case is when we are reading a variable
8455 holding a windows path complete with \ separators. */
8456 len = strlen (value) * 2 + strlen (argv[1]) + 1;
8457 result = XNEWVAR (char, len);
8458 for (ptr = result; *value; ptr += 2)
8464 strcpy (ptr, argv[1]);
8469 /* if-exists built-in spec function.
8471 Checks to see if the file specified by the absolute pathname in
8472 ARGS exists. Returns that pathname if found.
8474 The usual use for this function is to check for a library file
8475 (whose name has been expanded with %s). */
8478 if_exists_spec_function (int argc, const char **argv)
8480 /* Must have only one argument. */
8481 if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
8487 /* if-exists-else built-in spec function.
8489 This is like if-exists, but takes an additional argument which
8490 is returned if the first argument does not exist. */
8493 if_exists_else_spec_function (int argc, const char **argv)
8495 /* Must have exactly two arguments. */
8499 if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
8505 /* replace-outfile built-in spec function.
8507 This looks for the first argument in the outfiles array's name and
8508 replaces it with the second argument. */
8511 replace_outfile_spec_function (int argc, const char **argv)
8514 /* Must have exactly two arguments. */
8518 for (i = 0; i < n_infiles; i++)
8520 if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
8521 outfiles[i] = xstrdup (argv[1]);
8526 /* Given two version numbers, compares the two numbers.
8527 A version number must match the regular expression
8528 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8531 compare_version_strings (const char *v1, const char *v2)
8536 if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8537 REG_EXTENDED | REG_NOSUB) != 0)
8539 rresult = regexec (&r, v1, 0, NULL, 0);
8540 if (rresult == REG_NOMATCH)
8541 fatal ("invalid version number `%s'", v1);
8542 else if (rresult != 0)
8544 rresult = regexec (&r, v2, 0, NULL, 0);
8545 if (rresult == REG_NOMATCH)
8546 fatal ("invalid version number `%s'", v2);
8547 else if (rresult != 0)
8550 return strverscmp (v1, v2);
8554 /* version_compare built-in spec function.
8556 This takes an argument of the following form:
8558 <comparison-op> <arg1> [<arg2>] <switch> <result>
8560 and produces "result" if the comparison evaluates to true,
8561 and nothing if it doesn't.
8563 The supported <comparison-op> values are:
8565 >= true if switch is a later (or same) version than arg1
8567 < true if switch is an earlier version than arg1
8569 >< true if switch is arg1 or later, and earlier than arg2
8570 <> true if switch is earlier than arg1 or is arg2 or later
8572 If the switch is not present, the condition is false unless
8573 the first character of the <comparison-op> is '!'.
8576 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8577 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8580 version_compare_spec_function (int argc, const char **argv)
8584 const char *switch_value = NULL;
8589 fatal ("too few arguments to %%:version-compare");
8590 if (argv[0][0] == '\0')
8592 if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
8594 if (argc != nargs + 3)
8595 fatal ("too many arguments to %%:version-compare");
8597 switch_len = strlen (argv[nargs + 1]);
8598 for (i = 0; i < n_switches; i++)
8599 if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
8600 && check_live_switch (i, switch_len))
8601 switch_value = switches[i].part1 + switch_len;
8603 if (switch_value == NULL)
8607 comp1 = compare_version_strings (switch_value, argv[1]);
8609 comp2 = compare_version_strings (switch_value, argv[2]);
8611 comp2 = -1; /* This value unused. */
8614 switch (argv[0][0] << 8 | argv[0][1])
8616 case '>' << 8 | '=':
8617 result = comp1 >= 0;
8619 case '!' << 8 | '<':
8620 result = comp1 >= 0 || switch_value == NULL;
8625 case '!' << 8 | '>':
8626 result = comp1 < 0 || switch_value == NULL;
8628 case '>' << 8 | '<':
8629 result = comp1 >= 0 && comp2 < 0;
8631 case '<' << 8 | '>':
8632 result = comp1 < 0 || comp2 >= 0;
8636 fatal ("unknown operator '%s' in %%:version-compare", argv[0]);
8641 return argv[nargs + 2];
8644 /* %:include builtin spec function. This differs from %include in that it
8645 can be nested inside a spec, and thus be conditionalized. It takes
8646 one argument, the filename, and looks for it in the startfile path.
8647 The result is always NULL, i.e. an empty expansion. */
8650 include_spec_function (int argc, const char **argv)
8657 file = find_a_file (&startfile_prefixes, argv[0], R_OK, true);
8658 read_specs (file ? file : argv[0], FALSE);
8663 /* %:print-asm-header spec function. Print a banner to say that the
8664 following output is from the assembler. */
8667 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED,
8668 const char **argv ATTRIBUTE_UNUSED)
8670 printf (_("Assembler options\n=================\n\n"));
8671 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8676 /* Compute a timestamp to initialize flag_random_seed. */
8679 get_local_tick (void)
8683 /* Get some more or less random data. */
8684 #ifdef HAVE_GETTIMEOFDAY
8688 gettimeofday (&tv, NULL);
8689 ret = tv.tv_sec * 1000 + tv.tv_usec / 1000;
8693 time_t now = time (NULL);
8695 if (now != (time_t)-1)
8696 ret = (unsigned) now;
8703 /* %:compare-debug-dump-opt spec function. Save the last argument,
8704 expected to be the last -fdump-final-insns option, or generate a
8708 compare_debug_dump_opt_spec_function (int arg,
8709 const char **argv ATTRIBUTE_UNUSED)
8714 static char random_seed[HOST_BITS_PER_WIDE_INT / 4 + 3];
8717 fatal ("too many arguments to %%:compare-debug-dump-opt");
8719 do_spec_2 ("%{fdump-final-insns=*:%*}");
8720 do_spec_1 (" ", 0, NULL);
8722 if (argbuf_index > 0 && strcmp (argv[argbuf_index - 1], "."))
8727 name = xstrdup (argv[argbuf_index - 1]);
8732 const char *ext = NULL;
8734 if (argbuf_index > 0)
8736 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8739 else if (!compare_debug)
8742 do_spec_2 ("%g.gkd");
8744 do_spec_1 (" ", 0, NULL);
8746 gcc_assert (argbuf_index > 0);
8748 name = concat (argbuf[argbuf_index - 1], ext, NULL);
8750 ret = concat ("-fdump-final-insns=", name, NULL);
8753 which = compare_debug < 0;
8754 debug_check_temp_file[which] = name;
8758 unsigned HOST_WIDE_INT value = get_local_tick () ^ getpid ();
8760 sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value);
8764 ret = concat ("%{!frandom-seed=*:-frandom-seed=", random_seed, "} ",
8773 static const char *debug_auxbase_opt;
8775 /* %:compare-debug-self-opt spec function. Expands to the options
8776 that are to be passed in the second compilation of
8780 compare_debug_self_opt_spec_function (int arg,
8781 const char **argv ATTRIBUTE_UNUSED)
8784 fatal ("too many arguments to %%:compare-debug-self-opt");
8786 if (compare_debug >= 0)
8789 do_spec_2 ("%{c|S:%{o*:%*}}");
8790 do_spec_1 (" ", 0, NULL);
8792 if (argbuf_index > 0)
8793 debug_auxbase_opt = concat ("-auxbase-strip ",
8794 argbuf[argbuf_index - 1],
8797 debug_auxbase_opt = NULL;
8800 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8801 %<fdump-final-insns=* -w -S -o %j \
8802 %{!fcompare-debug-second:-fcompare-debug-second} \
8803 ", compare_debug_opt, NULL);
8806 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8807 options that are to be passed in the second compilation of
8808 compare-debug. It expects, as an argument, the basename of the
8809 current input file name, with the .gk suffix appended to it. */
8812 compare_debug_auxbase_opt_spec_function (int arg,
8819 fatal ("too few arguments to %%:compare-debug-auxbase-opt");
8822 fatal ("too many arguments to %%:compare-debug-auxbase-opt");
8824 if (compare_debug >= 0)
8827 len = strlen (argv[0]);
8828 if (len < 3 || strcmp (argv[0] + len - 3, ".gk") != 0)
8829 fatal ("argument to %%:compare-debug-auxbase-opt does not end in .gk");
8831 if (debug_auxbase_opt)
8832 return debug_auxbase_opt;
8834 #define OPT "-auxbase "
8837 name = (char*) xmalloc (sizeof (OPT) + len);
8838 memcpy (name, OPT, sizeof (OPT) - 1);
8839 memcpy (name + sizeof (OPT) - 1, argv[0], len);
8840 name[sizeof (OPT) - 1 + len] = '\0';