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 /* We pass any -flto and -fwhopr flags on to the linker, which is expected
768 to understand them. In practice, this means it had better be collect2. */
769 #ifndef LINK_COMMAND_SPEC
770 #define LINK_COMMAND_SPEC "\
771 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
773 %{use-linker-plugin: \
774 -plugin %(linker_plugin_file) \
775 -plugin-opt=%(lto_wrapper) \
776 -plugin-opt=%(lto_gcc) \
777 %{static|static-libgcc:-plugin-opt=-pass-through=%(lto_libgcc)} \
778 %{O*:-plugin-opt=-O%*} \
779 %{w:-plugin-opt=-w} \
780 %{f*:-plugin-opt=-f%*} \
782 %{flto} %{fwhopr} %l " LINK_PIE_SPEC \
783 "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
784 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
785 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
786 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
787 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
788 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
789 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
792 #ifndef LINK_LIBGCC_SPEC
793 /* Generate -L options for startfile prefix list. */
794 # define LINK_LIBGCC_SPEC "%D"
797 #ifndef STARTFILE_PREFIX_SPEC
798 # define STARTFILE_PREFIX_SPEC ""
802 # define SYSROOT_SPEC "--sysroot=%R"
805 #ifndef SYSROOT_SUFFIX_SPEC
806 # define SYSROOT_SUFFIX_SPEC ""
809 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
810 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
813 static const char *asm_debug;
814 static const char *cpp_spec = CPP_SPEC;
815 static const char *cc1_spec = CC1_SPEC;
816 static const char *cc1plus_spec = CC1PLUS_SPEC;
817 static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
818 static const char *link_ssp_spec = LINK_SSP_SPEC;
819 static const char *asm_spec = ASM_SPEC;
820 static const char *asm_final_spec = ASM_FINAL_SPEC;
821 static const char *link_spec = LINK_SPEC;
822 static const char *lib_spec = LIB_SPEC;
823 static const char *mfwrap_spec = MFWRAP_SPEC;
824 static const char *mflib_spec = MFLIB_SPEC;
825 static const char *link_gomp_spec = "";
826 static const char *libgcc_spec = LIBGCC_SPEC;
827 static const char *endfile_spec = ENDFILE_SPEC;
828 static const char *startfile_spec = STARTFILE_SPEC;
829 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
830 static const char *linker_name_spec = LINKER_NAME;
831 static const char *linker_plugin_file_spec = "";
832 static const char *lto_wrapper_spec = "";
833 static const char *lto_gcc_spec = "";
834 static const char *lto_libgcc_spec = "";
835 static const char *link_command_spec = LINK_COMMAND_SPEC;
836 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
837 static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
838 static const char *sysroot_spec = SYSROOT_SPEC;
839 static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
840 static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
842 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
843 There should be no need to override these in target dependent files,
844 but we need to copy them to the specs file so that newer versions
845 of the GCC driver can correctly drive older tool chains with the
846 appropriate -B options. */
848 /* When cpplib handles traditional preprocessing, get rid of this, and
849 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
850 that we default the front end language better. */
851 static const char *trad_capable_cpp =
852 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
854 /* We don't wrap .d files in %W{} since a missing .d file, and
855 therefore no dependency entry, confuses make into thinking a .o
856 file that happens to exist is up-to-date. */
857 static const char *cpp_unique_options =
858 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
859 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
860 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
861 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
862 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
863 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
864 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
865 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
866 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
867 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
870 /* This contains cpp options which are common with cc1_options and are passed
871 only when preprocessing only to avoid duplication. We pass the cc1 spec
872 options to the preprocessor so that it the cc1 spec may manipulate
873 options used to set target flags. Those special target flags settings may
874 in turn cause preprocessor symbols to be defined specially. */
875 static const char *cpp_options =
876 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
877 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
878 %{undef} %{save-temps*:-fpch-preprocess}";
880 /* This contains cpp options which are not passed when the preprocessor
881 output will be used by another program. */
882 static const char *cpp_debug_options = "%{d*}";
884 /* NB: This is shared amongst all front-ends, except for Ada. */
885 static const char *cc1_options =
886 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
887 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
888 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
889 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
890 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
891 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
892 %{Qn:-fno-ident} %{--help:--help}\
893 %{--target-help:--target-help}\
894 %{--help=*:--help=%(VALUE)}\
895 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
896 %{fsyntax-only:-o %j} %{-param*}\
897 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
898 %{coverage:-fprofile-arcs -ftest-coverage}";
900 static const char *asm_options =
901 "%{--target-help:%:print-asm-header()} "
903 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
904 to the assembler equivalents. */
905 "%{v} %{w:-W} %{I*} "
907 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
909 static const char *invoke_as =
910 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
912 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
913 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
917 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
918 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
922 /* Some compilers have limits on line lengths, and the multilib_select
923 and/or multilib_matches strings can be very long, so we build them at
925 static struct obstack multilib_obstack;
926 static const char *multilib_select;
927 static const char *multilib_matches;
928 static const char *multilib_defaults;
929 static const char *multilib_exclusions;
931 /* Check whether a particular argument is a default argument. */
933 #ifndef MULTILIB_DEFAULTS
934 #define MULTILIB_DEFAULTS { "" }
937 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
939 #ifndef DRIVER_SELF_SPECS
940 #define DRIVER_SELF_SPECS ""
943 /* Adding -fopenmp should imply pthreads. This is particularly important
944 for targets that use different start files and suchlike. */
945 #ifndef GOMP_SELF_SPECS
946 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
949 static const char *const driver_self_specs[] = {
950 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
951 DRIVER_SELF_SPECS, GOMP_SELF_SPECS
954 #ifndef OPTION_DEFAULT_SPECS
955 #define OPTION_DEFAULT_SPECS { "", "" }
964 static const struct default_spec
965 option_default_specs[] = { OPTION_DEFAULT_SPECS };
969 struct user_specs *next;
970 const char *filename;
973 static struct user_specs *user_specs_head, *user_specs_tail;
975 #ifndef SWITCH_TAKES_ARG
976 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
979 #ifndef WORD_SWITCH_TAKES_ARG
980 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
983 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
984 /* This defines which switches stop a full compilation. */
985 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
986 ((CHAR) == 'c' || (CHAR) == 'S')
988 #ifndef SWITCH_CURTAILS_COMPILATION
989 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
990 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
994 /* Record the mapping from file suffixes for compilation specs. */
998 const char *suffix; /* Use this compiler for input files
999 whose names end in this suffix. */
1001 const char *spec; /* To use this compiler, run this spec. */
1003 const char *cpp_spec; /* If non-NULL, substitute this spec
1004 for `%C', rather than the usual
1006 const int combinable; /* If nonzero, compiler can deal with
1007 multiple source files at once (IMA). */
1008 const int needs_preprocessing; /* If nonzero, source files need to
1009 be run through a preprocessor. */
1012 /* Pointer to a vector of `struct compiler' that gives the spec for
1013 compiling a file, based on its suffix.
1014 A file that does not end in any of these suffixes will be passed
1015 unchanged to the loader and nothing else will be done to it.
1017 An entry containing two 0s is used to terminate the vector.
1019 If multiple entries match a file, the last matching one is used. */
1021 static struct compiler *compilers;
1023 /* Number of entries in `compilers', not counting the null terminator. */
1025 static int n_compilers;
1027 /* The default list of file name suffixes and their compilation specs. */
1029 static const struct compiler default_compilers[] =
1031 /* Add lists of suffixes of known languages here. If those languages
1032 were not present when we built the driver, we will hit these copies
1033 and be given a more meaningful error than "file not used since
1034 linking is not done". */
1035 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1036 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1037 {".mii", "#Objective-C++", 0, 0, 0},
1038 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1039 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1040 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1041 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1042 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1043 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1044 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1045 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1046 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1047 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1048 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1049 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1050 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1051 {".r", "#Ratfor", 0, 0, 0},
1052 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1053 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1054 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1055 /* Next come the entries for C. */
1056 {".c", "@c", 0, 1, 1},
1058 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1059 external preprocessor if -save-temps is given. */
1060 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1062 %{traditional|ftraditional:\
1063 %eGNU C no longer supports -traditional without -E}\
1065 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1066 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1067 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1069 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1070 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1071 %{!fsyntax-only:%(invoke_as)}} \
1073 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1074 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i}}\
1075 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1076 cc1 %(cpp_unique_options) %(cc1_options)}}\
1077 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1079 "%{!E:%e-E or -x required when input is from standard input}\
1080 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1081 {".h", "@c-header", 0, 0, 0},
1083 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1084 external preprocessor if -save-temps is given. */
1085 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1087 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1088 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1089 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1091 -o %g.s %{!o*:--output-pch=%i.gch}\
1092 %W{o*:--output-pch=%*}%V}\
1093 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1094 cc1 %(cpp_unique_options) %(cc1_options)\
1095 -o %g.s %{!o*:--output-pch=%i.gch}\
1096 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1097 {".i", "@cpp-output", 0, 1, 0},
1099 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1100 {".s", "@assembler", 0, 1, 0},
1102 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1103 {".sx", "@assembler-with-cpp", 0, 1, 0},
1104 {".S", "@assembler-with-cpp", 0, 1, 0},
1105 {"@assembler-with-cpp",
1106 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1107 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1108 %{E|M|MM:%(cpp_debug_options)}\
1109 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1110 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1112 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1113 %{E|M|MM:%(cpp_debug_options)}\
1114 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1115 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1120 /* Mark end of table. */
1124 /* Number of elements in default_compilers, not counting the terminator. */
1126 static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
1128 /* A vector of options to give to the linker.
1129 These options are accumulated by %x,
1130 and substituted into the linker command with %X. */
1131 static int n_linker_options;
1132 static char **linker_options;
1134 /* A vector of options to give to the assembler.
1135 These options are accumulated by -Wa,
1136 and substituted into the assembler command with %Y. */
1137 static int n_assembler_options;
1138 static char **assembler_options;
1140 /* A vector of options to give to the preprocessor.
1141 These options are accumulated by -Wp,
1142 and substituted into the preprocessor command with %Z. */
1143 static int n_preprocessor_options;
1144 static char **preprocessor_options;
1146 /* Define how to map long options into short ones. */
1148 /* This structure describes one mapping. */
1151 /* The long option's name. */
1152 const char *const name;
1153 /* The equivalent short option. */
1154 const char *const equivalent;
1155 /* Argument info. A string of flag chars; NULL equals no options.
1156 a => argument required.
1157 o => argument optional.
1158 j => join argument to equivalent, making one word.
1159 * => require other text after NAME as an argument. */
1160 const char *const arg_info;
1163 /* This is the table of mappings. Mappings are tried sequentially
1164 for each option encountered; the first one that matches, wins. */
1166 static const struct option_map option_map[] =
1168 {"--all-warnings", "-Wall", 0},
1169 {"--ansi", "-ansi", 0},
1170 {"--assemble", "-S", 0},
1171 {"--assert", "-A", "a"},
1172 {"--classpath", "-fclasspath=", "aj"},
1173 {"--bootclasspath", "-fbootclasspath=", "aj"},
1174 {"--CLASSPATH", "-fclasspath=", "aj"},
1175 {"--combine", "-combine", 0},
1176 {"--comments", "-C", 0},
1177 {"--comments-in-macros", "-CC", 0},
1178 {"--compile", "-c", 0},
1179 {"--debug", "-g", "oj"},
1180 {"--define-macro", "-D", "aj"},
1181 {"--dependencies", "-M", 0},
1182 {"--dump", "-d", "a"},
1183 {"--dumpbase", "-dumpbase", "a"},
1184 {"--encoding", "-fencoding=", "aj"},
1185 {"--entry", "-e", 0},
1186 {"--extra-warnings", "-W", 0},
1187 {"--extdirs", "-fextdirs=", "aj"},
1188 {"--for-assembler", "-Wa", "a"},
1189 {"--for-linker", "-Xlinker", "a"},
1190 {"--force-link", "-u", "a"},
1191 {"--coverage", "-coverage", 0},
1192 {"--imacros", "-imacros", "a"},
1193 {"--include", "-include", "a"},
1194 {"--include-barrier", "-I-", 0},
1195 {"--include-directory", "-I", "aj"},
1196 {"--include-directory-after", "-idirafter", "a"},
1197 {"--include-prefix", "-iprefix", "a"},
1198 {"--include-with-prefix", "-iwithprefix", "a"},
1199 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1200 {"--include-with-prefix-after", "-iwithprefix", "a"},
1201 {"--language", "-x", "a"},
1202 {"--library-directory", "-L", "a"},
1203 {"--machine", "-m", "aj"},
1204 {"--machine-", "-m", "*j"},
1205 {"--no-canonical-prefixes", "-no-canonical-prefixes", 0},
1206 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1207 {"--no-line-commands", "-P", 0},
1208 {"--no-precompiled-includes", "-noprecomp", 0},
1209 {"--no-standard-includes", "-nostdinc", 0},
1210 {"--no-standard-libraries", "-nostdlib", 0},
1211 {"--no-warnings", "-w", 0},
1212 {"--optimize", "-O", "oj"},
1213 {"--output", "-o", "a"},
1214 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1215 {"--param", "--param", "a"},
1216 {"--pass-exit-codes", "-pass-exit-codes", 0},
1217 {"--pedantic", "-pedantic", 0},
1218 {"--pedantic-errors", "-pedantic-errors", 0},
1219 {"--pie", "-pie", 0},
1220 {"--pipe", "-pipe", 0},
1221 {"--prefix", "-B", "a"},
1222 {"--preprocess", "-E", 0},
1223 {"--print-search-dirs", "-print-search-dirs", 0},
1224 {"--print-file-name", "-print-file-name=", "aj"},
1225 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1226 {"--print-missing-file-dependencies", "-MG", 0},
1227 {"--print-multi-lib", "-print-multi-lib", 0},
1228 {"--print-multi-directory", "-print-multi-directory", 0},
1229 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1230 {"--print-prog-name", "-print-prog-name=", "aj"},
1231 {"--print-sysroot", "-print-sysroot", 0},
1232 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1233 {"--profile", "-p", 0},
1234 {"--profile-blocks", "-a", 0},
1235 {"--quiet", "-q", 0},
1236 {"--resource", "-fcompile-resource=", "aj"},
1237 {"--save-temps", "-save-temps", 0},
1238 {"--shared", "-shared", 0},
1239 {"--silent", "-q", 0},
1240 {"--specs", "-specs=", "aj"},
1241 {"--static", "-static", 0},
1242 {"--std", "-std=", "aj"},
1243 {"--symbolic", "-symbolic", 0},
1244 {"--sysroot", "--sysroot=", "aj"},
1245 {"--time", "-time", 0},
1246 {"--trace-includes", "-H", 0},
1247 {"--traditional", "-traditional", 0},
1248 {"--traditional-cpp", "-traditional-cpp", 0},
1249 {"--trigraphs", "-trigraphs", 0},
1250 {"--undefine-macro", "-U", "aj"},
1251 {"--user-dependencies", "-MM", 0},
1252 {"--verbose", "-v", 0},
1253 {"--warn-", "-W", "*j"},
1254 {"--write-dependencies", "-MD", 0},
1255 {"--write-user-dependencies", "-MMD", 0},
1260 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1261 static const struct {
1262 const char *const option_found;
1263 const char *const replacements;
1264 } target_option_translations[] =
1266 TARGET_OPTION_TRANSLATE_TABLE,
1271 /* Translate the options described by *ARGCP and *ARGVP.
1272 Make a new vector and store it back in *ARGVP,
1273 and store its length in *ARGCP. */
1276 translate_options (int *argcp, const char *const **argvp)
1280 const char *const *argv = *argvp;
1281 int newvsize = (argc + 2) * 2 * sizeof (const char *);
1282 const char **newv = XNEWVAR (const char *, newvsize);
1286 newv[newindex++] = argv[i++];
1290 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1294 target_option_translations[tott_idx].option_found;
1297 if (strcmp (target_option_translations[tott_idx].option_found,
1304 for (sp = target_option_translations[tott_idx].replacements;
1311 newvsize += spaces * sizeof (const char *);
1312 newv = XRESIZEVAR (const char *, newv, newvsize);
1314 sp = target_option_translations[tott_idx].replacements;
1323 newv[newindex++] = np;
1324 while (*np != ' ' && *np)
1335 if (target_option_translations[tott_idx].option_found)
1339 /* Translate -- options. */
1340 if (argv[i][0] == '-' && argv[i][1] == '-')
1343 /* Find a mapping that applies to this option. */
1344 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1346 size_t optlen = strlen (option_map[j].name);
1347 size_t arglen = strlen (argv[i]);
1348 size_t complen = arglen > optlen ? optlen : arglen;
1349 const char *arginfo = option_map[j].arg_info;
1354 if (!strncmp (argv[i], option_map[j].name, complen))
1356 const char *arg = 0;
1358 if (arglen < optlen)
1361 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1362 if (strlen (option_map[k].name) >= arglen
1363 && !strncmp (argv[i], option_map[k].name, arglen))
1365 error ("ambiguous abbreviation %s", argv[i]);
1369 if (k != ARRAY_SIZE (option_map))
1373 if (arglen > optlen)
1375 /* If the option has an argument, accept that. */
1376 if (argv[i][optlen] == '=')
1377 arg = argv[i] + optlen + 1;
1379 /* If this mapping requires extra text at end of name,
1380 accept that as "argument". */
1381 else if (strchr (arginfo, '*') != 0)
1382 arg = argv[i] + optlen;
1384 /* Otherwise, extra text at end means mismatch.
1385 Try other mappings. */
1390 else if (strchr (arginfo, '*') != 0)
1392 error ("incomplete '%s' option", option_map[j].name);
1396 /* Handle arguments. */
1397 if (strchr (arginfo, 'a') != 0)
1403 error ("missing argument to '%s' option",
1404 option_map[j].name);
1411 else if (strchr (arginfo, '*') != 0)
1413 else if (strchr (arginfo, 'o') == 0)
1416 error ("extraneous argument to '%s' option",
1417 option_map[j].name);
1421 /* Store the translation as one argv elt or as two. */
1422 if (arg != 0 && strchr (arginfo, 'j') != 0)
1423 newv[newindex++] = concat (option_map[j].equivalent, arg,
1427 newv[newindex++] = option_map[j].equivalent;
1428 newv[newindex++] = arg;
1431 newv[newindex++] = option_map[j].equivalent;
1439 /* Handle old-fashioned options--just copy them through,
1440 with their arguments. */
1441 else if (argv[i][0] == '-')
1443 const char *p = argv[i] + 1;
1447 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1448 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1449 else if (WORD_SWITCH_TAKES_ARG (p))
1450 nskip += WORD_SWITCH_TAKES_ARG (p);
1451 else if ((c == 'B' || c == 'b' || c == 'x')
1454 else if (! strcmp (p, "Xlinker"))
1456 else if (! strcmp (p, "Xpreprocessor"))
1458 else if (! strcmp (p, "Xassembler"))
1461 /* Watch out for an option at the end of the command line that
1462 is missing arguments, and avoid skipping past the end of the
1464 if (nskip + i > argc)
1469 newv[newindex++] = argv[i++];
1474 /* Ordinary operands, or +e options. */
1475 newv[newindex++] = argv[i++];
1485 skip_whitespace (char *p)
1489 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1490 be considered whitespace. */
1491 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1493 else if (*p == '\n' || *p == ' ' || *p == '\t')
1507 /* Structures to keep track of prefixes to try when looking for files. */
1511 const char *prefix; /* String to prepend to the path. */
1512 struct prefix_list *next; /* Next in linked list. */
1513 int require_machine_suffix; /* Don't use without machine_suffix. */
1514 /* 2 means try both machine_suffix and just_machine_suffix. */
1515 int priority; /* Sort key - priority within list. */
1516 int os_multilib; /* 1 if OS multilib scheme should be used,
1517 0 for GCC multilib scheme. */
1522 struct prefix_list *plist; /* List of prefixes to try */
1523 int max_len; /* Max length of a prefix in PLIST */
1524 const char *name; /* Name of this list (used in config stuff) */
1527 /* List of prefixes to try when looking for executables. */
1529 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1531 /* List of prefixes to try when looking for startup (crt0) files. */
1533 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1535 /* List of prefixes to try when looking for include files. */
1537 static struct path_prefix include_prefixes = { 0, 0, "include" };
1539 /* Suffix to attach to directories searched for commands.
1540 This looks like `MACHINE/VERSION/'. */
1542 static const char *machine_suffix = 0;
1544 /* Suffix to attach to directories searched for commands.
1545 This is just `MACHINE/'. */
1547 static const char *just_machine_suffix = 0;
1549 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1551 static const char *gcc_exec_prefix;
1553 /* Adjusted value of standard_libexec_prefix. */
1555 static const char *gcc_libexec_prefix;
1557 /* Default prefixes to attach to command names. */
1559 #ifndef STANDARD_STARTFILE_PREFIX_1
1560 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1562 #ifndef STANDARD_STARTFILE_PREFIX_2
1563 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1566 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1567 #undef MD_EXEC_PREFIX
1568 #undef MD_STARTFILE_PREFIX
1569 #undef MD_STARTFILE_PREFIX_1
1572 /* If no prefixes defined, use the null string, which will disable them. */
1573 #ifndef MD_EXEC_PREFIX
1574 #define MD_EXEC_PREFIX ""
1576 #ifndef MD_STARTFILE_PREFIX
1577 #define MD_STARTFILE_PREFIX ""
1579 #ifndef MD_STARTFILE_PREFIX_1
1580 #define MD_STARTFILE_PREFIX_1 ""
1583 /* These directories are locations set at configure-time based on the
1584 --prefix option provided to configure. Their initializers are
1585 defined in Makefile.in. These paths are not *directly* used when
1586 gcc_exec_prefix is set because, in that case, we know where the
1587 compiler has been installed, and use paths relative to that
1588 location instead. */
1589 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1590 static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
1591 static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1592 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1594 /* For native compilers, these are well-known paths containing
1595 components that may be provided by the system. For cross
1596 compilers, these paths are not used. */
1597 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1598 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1599 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1600 static const char *const standard_startfile_prefix_1
1601 = STANDARD_STARTFILE_PREFIX_1;
1602 static const char *const standard_startfile_prefix_2
1603 = STANDARD_STARTFILE_PREFIX_2;
1605 /* A relative path to be used in finding the location of tools
1606 relative to the driver. */
1607 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1609 /* Subdirectory to use for locating libraries. Set by
1610 set_multilib_dir based on the compilation options. */
1612 static const char *multilib_dir;
1614 /* Subdirectory to use for locating libraries in OS conventions. Set by
1615 set_multilib_dir based on the compilation options. */
1617 static const char *multilib_os_dir;
1619 /* Structure to keep track of the specs that have been defined so far.
1620 These are accessed using %(specname) or %[specname] in a compiler
1625 /* The following 2 fields must be first */
1626 /* to allow EXTRA_SPECS to be initialized */
1627 const char *name; /* name of the spec. */
1628 const char *ptr; /* available ptr if no static pointer */
1630 /* The following fields are not initialized */
1631 /* by EXTRA_SPECS */
1632 const char **ptr_spec; /* pointer to the spec itself. */
1633 struct spec_list *next; /* Next spec in linked list. */
1634 int name_len; /* length of the name */
1635 int alloc_p; /* whether string was allocated */
1638 #define INIT_STATIC_SPEC(NAME,PTR) \
1639 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1641 /* List of statically defined specs. */
1642 static struct spec_list static_specs[] =
1644 INIT_STATIC_SPEC ("asm", &asm_spec),
1645 INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1646 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1647 INIT_STATIC_SPEC ("asm_options", &asm_options),
1648 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1649 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1650 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1651 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options),
1652 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options),
1653 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1654 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1655 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1656 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1657 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec),
1658 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec),
1659 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1660 INIT_STATIC_SPEC ("link", &link_spec),
1661 INIT_STATIC_SPEC ("lib", &lib_spec),
1662 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec),
1663 INIT_STATIC_SPEC ("mflib", &mflib_spec),
1664 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec),
1665 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1666 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1667 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1668 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1669 INIT_STATIC_SPEC ("version", &compiler_version),
1670 INIT_STATIC_SPEC ("multilib", &multilib_select),
1671 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1672 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1673 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1674 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1675 INIT_STATIC_SPEC ("multilib_options", &multilib_options),
1676 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1677 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec),
1678 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec),
1679 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec),
1680 INIT_STATIC_SPEC ("lto_libgcc", <o_libgcc_spec),
1681 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1682 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1683 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1684 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1685 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
1686 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec),
1687 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
1688 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
1691 #ifdef EXTRA_SPECS /* additional specs needed */
1692 /* Structure to keep track of just the first two args of a spec_list.
1693 That is all that the EXTRA_SPECS macro gives us. */
1696 const char *const name;
1697 const char *const ptr;
1700 static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1701 static struct spec_list *extra_specs = (struct spec_list *) 0;
1704 /* List of dynamically allocates specs that have been defined so far. */
1706 static struct spec_list *specs = (struct spec_list *) 0;
1708 /* List of static spec functions. */
1710 static const struct spec_function static_spec_functions[] =
1712 { "getenv", getenv_spec_function },
1713 { "if-exists", if_exists_spec_function },
1714 { "if-exists-else", if_exists_else_spec_function },
1715 { "replace-outfile", replace_outfile_spec_function },
1716 { "version-compare", version_compare_spec_function },
1717 { "include", include_spec_function },
1718 { "print-asm-header", print_asm_header_spec_function },
1719 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function },
1720 { "compare-debug-self-opt", compare_debug_self_opt_spec_function },
1721 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function },
1722 #ifdef EXTRA_SPEC_FUNCTIONS
1723 EXTRA_SPEC_FUNCTIONS
1728 static int processing_spec_function;
1730 /* Add appropriate libgcc specs to OBSTACK, taking into account
1731 various permutations of -shared-libgcc, -shared, and such. */
1733 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1735 #ifndef USE_LD_AS_NEEDED
1736 #define USE_LD_AS_NEEDED 0
1740 init_gcc_specs (struct obstack *obstack, const char *shared_name,
1741 const char *static_name, const char *eh_name)
1745 buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}"
1746 "%{!static:%{!static-libgcc:"
1747 #if USE_LD_AS_NEEDED
1748 "%{!shared-libgcc:",
1749 static_name, " --as-needed ", shared_name, " --no-as-needed"
1752 shared_name, "%{!shared: ", static_name, "}"
1756 "%{!shared-libgcc:", static_name, " ", eh_name, "}"
1757 "%{shared-libgcc:", shared_name, " ", static_name, "}"
1761 "%{shared-libgcc:", shared_name, "}"
1762 "%{!shared-libgcc:", static_name, "}"
1765 "%{shared:", shared_name, "}"
1770 obstack_grow (obstack, buf, strlen (buf));
1773 #endif /* ENABLE_SHARED_LIBGCC */
1775 /* Initialize the specs lookup routines. */
1780 struct spec_list *next = (struct spec_list *) 0;
1781 struct spec_list *sl = (struct spec_list *) 0;
1785 return; /* Already initialized. */
1788 notice ("Using built-in specs.\n");
1791 extra_specs = XCNEWVEC (struct spec_list, ARRAY_SIZE (extra_specs_1));
1793 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1795 sl = &extra_specs[i];
1796 sl->name = extra_specs_1[i].name;
1797 sl->ptr = extra_specs_1[i].ptr;
1799 sl->name_len = strlen (sl->name);
1800 sl->ptr_spec = &sl->ptr;
1805 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1807 sl = &static_specs[i];
1812 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1813 /* ??? If neither -shared-libgcc nor --static-libgcc was
1814 seen, then we should be making an educated guess. Some proposed
1815 heuristics for ELF include:
1817 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1818 program will be doing dynamic loading, which will likely
1819 need the shared libgcc.
1821 (2) If "-ldl", then it's also a fair bet that we're doing
1824 (3) For each ET_DYN we're linking against (either through -lfoo
1825 or /some/path/foo.so), check to see whether it or one of
1826 its dependencies depends on a shared libgcc.
1830 If the runtime is fixed to look for program headers instead
1831 of calling __register_frame_info at all, for each object,
1832 use the shared libgcc if any EH symbol referenced.
1834 If crtstuff is fixed to not invoke __register_frame_info
1835 automatically, for each object, use the shared libgcc if
1836 any non-empty unwind section found.
1838 Doing any of this probably requires invoking an external program to
1839 do the actual object file scanning. */
1841 const char *p = libgcc_spec;
1844 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1845 when given the proper command line arguments. */
1848 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1850 init_gcc_specs (&obstack,
1852 #ifdef USE_LIBUNWIND_EXCEPTIONS
1858 #ifdef USE_LIBUNWIND_EXCEPTIONS
1859 # ifdef HAVE_LD_STATIC_DYNAMIC
1860 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1870 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1872 /* Ug. We don't know shared library extensions. Hope that
1873 systems that use this form don't do shared libraries. */
1874 init_gcc_specs (&obstack,
1878 #ifdef USE_LIBUNWIND_EXCEPTIONS
1887 obstack_1grow (&obstack, *p);
1888 in_sep = (*p == ' ');
1893 obstack_1grow (&obstack, '\0');
1894 libgcc_spec = XOBFINISH (&obstack, const char *);
1897 #ifdef USE_AS_TRADITIONAL_FORMAT
1898 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1900 static const char tf[] = "--traditional-format ";
1901 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1902 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1903 asm_spec = XOBFINISH (&obstack, const char *);
1907 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1908 # ifdef LINK_BUILDID_SPEC
1909 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1910 obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof(LINK_BUILDID_SPEC) - 1);
1912 # ifdef LINK_EH_SPEC
1913 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1914 obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
1916 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
1917 link_spec = XOBFINISH (&obstack, const char *);
1923 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1924 removed; If the spec starts with a + then SPEC is added to the end of the
1928 set_spec (const char *name, const char *spec)
1930 struct spec_list *sl;
1931 const char *old_spec;
1932 int name_len = strlen (name);
1935 /* If this is the first call, initialize the statically allocated specs. */
1938 struct spec_list *next = (struct spec_list *) 0;
1939 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1941 sl = &static_specs[i];
1948 /* See if the spec already exists. */
1949 for (sl = specs; sl; sl = sl->next)
1950 if (name_len == sl->name_len && !strcmp (sl->name, name))
1955 /* Not found - make it. */
1956 sl = XNEW (struct spec_list);
1957 sl->name = xstrdup (name);
1958 sl->name_len = name_len;
1959 sl->ptr_spec = &sl->ptr;
1961 *(sl->ptr_spec) = "";
1966 old_spec = *(sl->ptr_spec);
1967 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1968 ? concat (old_spec, spec + 1, NULL)
1973 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1976 /* Free the old spec. */
1977 if (old_spec && sl->alloc_p)
1978 free (CONST_CAST(char *, old_spec));
1983 /* Accumulate a command (program name and args), and run it. */
1985 /* Vector of pointers to arguments in the current line of specifications. */
1987 static const char **argbuf;
1989 /* Number of elements allocated in argbuf. */
1991 static int argbuf_length;
1993 /* Number of elements in argbuf currently in use (containing args). */
1995 static int argbuf_index;
1997 /* Position in the argbuf array containing the name of the output file
1998 (the value associated with the "-o" flag). */
2000 static int have_o_argbuf_index = 0;
2002 /* Were the options -c or -S passed. */
2003 static int have_c = 0;
2005 /* Was the option -o passed. */
2006 static int have_o = 0;
2008 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
2009 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2012 static struct temp_name {
2013 const char *suffix; /* suffix associated with the code. */
2014 int length; /* strlen (suffix). */
2015 int unique; /* Indicates whether %g or %u/%U was used. */
2016 const char *filename; /* associated filename. */
2017 int filename_length; /* strlen (filename). */
2018 struct temp_name *next;
2021 /* Number of commands executed so far. */
2023 static int execution_count;
2025 /* Number of commands that exited with a signal. */
2027 static int signal_count;
2029 /* Name with which this program was invoked. */
2031 static const char *programname;
2033 /* Allocate the argument vector. */
2039 argbuf = XNEWVEC (const char *, argbuf_length);
2042 /* Clear out the vector of arguments (after a command is executed). */
2050 /* Add one argument to the vector at the end.
2051 This is done when a space is seen or at the end of the line.
2052 If DELETE_ALWAYS is nonzero, the arg is a filename
2053 and the file should be deleted eventually.
2054 If DELETE_FAILURE is nonzero, the arg is a filename
2055 and the file should be deleted if this compilation fails. */
2058 store_arg (const char *arg, int delete_always, int delete_failure)
2060 if (argbuf_index + 1 == argbuf_length)
2061 argbuf = XRESIZEVEC (const char *, argbuf, (argbuf_length *= 2));
2063 argbuf[argbuf_index++] = arg;
2064 argbuf[argbuf_index] = 0;
2066 if (strcmp (arg, "-o") == 0)
2067 have_o_argbuf_index = argbuf_index;
2068 if (delete_always || delete_failure)
2069 record_temp_file (arg, delete_always, delete_failure);
2072 /* Load specs from a file name named FILENAME, replacing occurrences of
2073 various different types of line-endings, \r\n, \n\r and just \r, with
2077 load_specs (const char *filename)
2081 struct stat statbuf;
2088 notice ("Reading specs from %s\n", filename);
2090 /* Open and stat the file. */
2091 desc = open (filename, O_RDONLY, 0);
2093 pfatal_with_name (filename);
2094 if (stat (filename, &statbuf) < 0)
2095 pfatal_with_name (filename);
2097 /* Read contents of file into BUFFER. */
2098 buffer = XNEWVEC (char, statbuf.st_size + 1);
2099 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
2101 pfatal_with_name (filename);
2102 buffer[readlen] = 0;
2105 specs = XNEWVEC (char, readlen + 1);
2107 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
2113 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
2115 else if (*(buffer_p + 1) == '\n') /* \r\n */
2129 /* Read compilation specs from a file named FILENAME,
2130 replacing the default ones.
2132 A suffix which starts with `*' is a definition for
2133 one of the machine-specific sub-specs. The "suffix" should be
2134 *asm, *cc1, *cpp, *link, *startfile, etc.
2135 The corresponding spec is stored in asm_spec, etc.,
2136 rather than in the `compilers' vector.
2138 Anything invalid in the file is a fatal error. */
2141 read_specs (const char *filename, int main_p)
2146 buffer = load_specs (filename);
2148 /* Scan BUFFER for specs, putting them in the vector. */
2154 char *in, *out, *p1, *p2, *p3;
2156 /* Advance P in BUFFER to the next nonblank nocomment line. */
2157 p = skip_whitespace (p);
2161 /* Is this a special command that starts with '%'? */
2162 /* Don't allow this for the main specs file, since it would
2163 encourage people to overwrite it. */
2164 if (*p == '%' && !main_p)
2167 while (*p && *p != '\n')
2173 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
2174 && (p1[sizeof "%include" - 1] == ' '
2175 || p1[sizeof "%include" - 1] == '\t'))
2179 p1 += sizeof ("%include");
2180 while (*p1 == ' ' || *p1 == '\t')
2183 if (*p1++ != '<' || p[-2] != '>')
2184 fatal ("specs %%include syntax malformed after %ld characters",
2185 (long) (p1 - buffer + 1));
2188 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2189 read_specs (new_filename ? new_filename : p1, FALSE);
2192 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
2193 && (p1[sizeof "%include_noerr" - 1] == ' '
2194 || p1[sizeof "%include_noerr" - 1] == '\t'))
2198 p1 += sizeof "%include_noerr";
2199 while (*p1 == ' ' || *p1 == '\t')
2202 if (*p1++ != '<' || p[-2] != '>')
2203 fatal ("specs %%include syntax malformed after %ld characters",
2204 (long) (p1 - buffer + 1));
2207 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2209 read_specs (new_filename, FALSE);
2210 else if (verbose_flag)
2211 notice ("could not find specs file %s\n", p1);
2214 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
2215 && (p1[sizeof "%rename" - 1] == ' '
2216 || p1[sizeof "%rename" - 1] == '\t'))
2219 struct spec_list *sl;
2220 struct spec_list *newsl;
2222 /* Get original name. */
2223 p1 += sizeof "%rename";
2224 while (*p1 == ' ' || *p1 == '\t')
2227 if (! ISALPHA ((unsigned char) *p1))
2228 fatal ("specs %%rename syntax malformed after %ld characters",
2229 (long) (p1 - buffer));
2232 while (*p2 && !ISSPACE ((unsigned char) *p2))
2235 if (*p2 != ' ' && *p2 != '\t')
2236 fatal ("specs %%rename syntax malformed after %ld characters",
2237 (long) (p2 - buffer));
2241 while (*p2 == ' ' || *p2 == '\t')
2244 if (! ISALPHA ((unsigned char) *p2))
2245 fatal ("specs %%rename syntax malformed after %ld characters",
2246 (long) (p2 - buffer));
2248 /* Get new spec name. */
2250 while (*p3 && !ISSPACE ((unsigned char) *p3))
2254 fatal ("specs %%rename syntax malformed after %ld characters",
2255 (long) (p3 - buffer));
2258 for (sl = specs; sl; sl = sl->next)
2259 if (name_len == sl->name_len && !strcmp (sl->name, p1))
2263 fatal ("specs %s spec was not found to be renamed", p1);
2265 if (strcmp (p1, p2) == 0)
2268 for (newsl = specs; newsl; newsl = newsl->next)
2269 if (strcmp (newsl->name, p2) == 0)
2270 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2275 notice ("rename spec %s to %s\n", p1, p2);
2277 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
2281 set_spec (p2, *(sl->ptr_spec));
2283 free (CONST_CAST (char *, *(sl->ptr_spec)));
2285 *(sl->ptr_spec) = "";
2290 fatal ("specs unknown %% command after %ld characters",
2291 (long) (p1 - buffer));
2294 /* Find the colon that should end the suffix. */
2296 while (*p1 && *p1 != ':' && *p1 != '\n')
2299 /* The colon shouldn't be missing. */
2301 fatal ("specs file malformed after %ld characters",
2302 (long) (p1 - buffer));
2304 /* Skip back over trailing whitespace. */
2306 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
2309 /* Copy the suffix to a string. */
2310 suffix = save_string (p, p2 - p);
2311 /* Find the next line. */
2312 p = skip_whitespace (p1 + 1);
2314 fatal ("specs file malformed after %ld characters",
2315 (long) (p - buffer));
2318 /* Find next blank line or end of string. */
2319 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
2322 /* Specs end at the blank line and do not include the newline. */
2323 spec = save_string (p, p1 - p);
2326 /* Delete backslash-newline sequences from the spec. */
2331 if (in[0] == '\\' && in[1] == '\n')
2333 else if (in[0] == '#')
2334 while (*in && *in != '\n')
2342 if (suffix[0] == '*')
2344 if (! strcmp (suffix, "*link_command"))
2345 link_command_spec = spec;
2347 set_spec (suffix + 1, spec);
2351 /* Add this pair to the vector. */
2353 = XRESIZEVEC (struct compiler, compilers, n_compilers + 2);
2355 compilers[n_compilers].suffix = suffix;
2356 compilers[n_compilers].spec = spec;
2358 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
2362 link_command_spec = spec;
2365 if (link_command_spec == 0)
2366 fatal ("spec file has no spec for linking");
2369 /* Record the names of temporary files we tell compilers to write,
2370 and delete them at the end of the run. */
2372 /* This is the common prefix we use to make temp file names.
2373 It is chosen once for each run of this program.
2374 It is substituted into a spec by %g or %j.
2375 Thus, all temp file names contain this prefix.
2376 In practice, all temp file names start with this prefix.
2378 This prefix comes from the envvar TMPDIR if it is defined;
2379 otherwise, from the P_tmpdir macro if that is defined;
2380 otherwise, in /usr/tmp or /tmp;
2381 or finally the current directory if all else fails. */
2383 static const char *temp_filename;
2385 /* Length of the prefix. */
2387 static int temp_filename_length;
2389 /* Define the list of temporary files to delete. */
2394 struct temp_file *next;
2397 /* Queue of files to delete on success or failure of compilation. */
2398 static struct temp_file *always_delete_queue;
2399 /* Queue of files to delete on failure of compilation. */
2400 static struct temp_file *failure_delete_queue;
2402 /* Record FILENAME as a file to be deleted automatically.
2403 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2404 otherwise delete it in any case.
2405 FAIL_DELETE nonzero means delete it if a compilation step fails;
2406 otherwise delete it in any case. */
2409 record_temp_file (const char *filename, int always_delete, int fail_delete)
2411 char *const name = xstrdup (filename);
2415 struct temp_file *temp;
2416 for (temp = always_delete_queue; temp; temp = temp->next)
2417 if (! strcmp (name, temp->name))
2420 temp = XNEW (struct temp_file);
2421 temp->next = always_delete_queue;
2423 always_delete_queue = temp;
2430 struct temp_file *temp;
2431 for (temp = failure_delete_queue; temp; temp = temp->next)
2432 if (! strcmp (name, temp->name))
2435 temp = XNEW (struct temp_file);
2436 temp->next = failure_delete_queue;
2438 failure_delete_queue = temp;
2444 /* Delete all the temporary files whose names we previously recorded. */
2446 #ifndef DELETE_IF_ORDINARY
2447 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2450 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2451 if (unlink (NAME) < 0) \
2453 perror_with_name (NAME); \
2458 delete_if_ordinary (const char *name)
2464 printf ("Delete %s? (y or n) ", name);
2468 while ((c = getchar ()) != '\n' && c != EOF)
2471 if (i == 'y' || i == 'Y')
2473 DELETE_IF_ORDINARY (name, st, verbose_flag);
2477 delete_temp_files (void)
2479 struct temp_file *temp;
2481 for (temp = always_delete_queue; temp; temp = temp->next)
2482 delete_if_ordinary (temp->name);
2483 always_delete_queue = 0;
2486 /* Delete all the files to be deleted on error. */
2489 delete_failure_queue (void)
2491 struct temp_file *temp;
2493 for (temp = failure_delete_queue; temp; temp = temp->next)
2494 delete_if_ordinary (temp->name);
2498 clear_failure_queue (void)
2500 failure_delete_queue = 0;
2503 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2505 If DO_MULTI is true iterate over the paths twice, first with multilib
2506 suffix then without, otherwise iterate over the paths once without
2507 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2508 to avoid visiting the same path twice, but we could do better. For
2509 instance, /usr/lib/../lib is considered different from /usr/lib.
2510 At least EXTRA_SPACE chars past the end of the path passed to
2511 CALLBACK are available for use by the callback.
2512 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2514 Returns the value returned by CALLBACK. */
2517 for_each_path (const struct path_prefix *paths,
2520 void *(*callback) (char *, void *),
2521 void *callback_info)
2523 struct prefix_list *pl;
2524 const char *multi_dir = NULL;
2525 const char *multi_os_dir = NULL;
2526 const char *multi_suffix;
2527 const char *just_multi_suffix;
2530 bool skip_multi_dir = false;
2531 bool skip_multi_os_dir = false;
2533 multi_suffix = machine_suffix;
2534 just_multi_suffix = just_machine_suffix;
2535 if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0)
2537 multi_dir = concat (multilib_dir, dir_separator_str, NULL);
2538 multi_suffix = concat (multi_suffix, multi_dir, NULL);
2539 just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL);
2541 if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0)
2542 multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL);
2546 size_t multi_dir_len = 0;
2547 size_t multi_os_dir_len = 0;
2549 size_t just_suffix_len;
2553 multi_dir_len = strlen (multi_dir);
2555 multi_os_dir_len = strlen (multi_os_dir);
2556 suffix_len = strlen (multi_suffix);
2557 just_suffix_len = strlen (just_multi_suffix);
2561 len = paths->max_len + extra_space + 1;
2562 if (suffix_len > multi_os_dir_len)
2565 len += multi_os_dir_len;
2566 path = XNEWVEC (char, len);
2569 for (pl = paths->plist; pl != 0; pl = pl->next)
2571 len = strlen (pl->prefix);
2572 memcpy (path, pl->prefix, len);
2574 /* Look first in MACHINE/VERSION subdirectory. */
2575 if (!skip_multi_dir)
2577 memcpy (path + len, multi_suffix, suffix_len + 1);
2578 ret = callback (path, callback_info);
2583 /* Some paths are tried with just the machine (ie. target)
2584 subdir. This is used for finding as, ld, etc. */
2586 && pl->require_machine_suffix == 2)
2588 memcpy (path + len, just_multi_suffix, just_suffix_len + 1);
2589 ret = callback (path, callback_info);
2594 /* Now try the base path. */
2595 if (!pl->require_machine_suffix
2596 && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir))
2598 const char *this_multi;
2599 size_t this_multi_len;
2601 if (pl->os_multilib)
2603 this_multi = multi_os_dir;
2604 this_multi_len = multi_os_dir_len;
2608 this_multi = multi_dir;
2609 this_multi_len = multi_dir_len;
2613 memcpy (path + len, this_multi, this_multi_len + 1);
2617 ret = callback (path, callback_info);
2625 if (multi_dir == NULL && multi_os_dir == NULL)
2628 /* Run through the paths again, this time without multilibs.
2629 Don't repeat any we have already seen. */
2632 free (CONST_CAST (char *, multi_dir));
2634 free (CONST_CAST (char *, multi_suffix));
2635 multi_suffix = machine_suffix;
2636 free (CONST_CAST (char *, just_multi_suffix));
2637 just_multi_suffix = just_machine_suffix;
2640 skip_multi_dir = true;
2643 free (CONST_CAST (char *, multi_os_dir));
2644 multi_os_dir = NULL;
2647 skip_multi_os_dir = true;
2652 free (CONST_CAST (char *, multi_dir));
2653 free (CONST_CAST (char *, multi_suffix));
2654 free (CONST_CAST (char *, just_multi_suffix));
2657 free (CONST_CAST (char *, multi_os_dir));
2663 /* Callback for build_search_list. Adds path to obstack being built. */
2665 struct add_to_obstack_info {
2672 add_to_obstack (char *path, void *data)
2674 struct add_to_obstack_info *info = (struct add_to_obstack_info *) data;
2676 if (info->check_dir && !is_directory (path, false))
2679 if (!info->first_time)
2680 obstack_1grow (info->ob, PATH_SEPARATOR);
2682 obstack_grow (info->ob, path, strlen (path));
2684 info->first_time = false;
2688 /* Add or change the value of an environment variable, outputting the
2689 change to standard error if in verbose mode. */
2691 xputenv (const char *string)
2694 notice ("%s\n", string);
2695 putenv (CONST_CAST (char *, string));
2698 /* Build a list of search directories from PATHS.
2699 PREFIX is a string to prepend to the list.
2700 If CHECK_DIR_P is true we ensure the directory exists.
2701 If DO_MULTI is true, multilib paths are output first, then
2703 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2704 It is also used by the --print-search-dirs flag. */
2707 build_search_list (const struct path_prefix *paths, const char *prefix,
2708 bool check_dir, bool do_multi)
2710 struct add_to_obstack_info info;
2712 info.ob = &collect_obstack;
2713 info.check_dir = check_dir;
2714 info.first_time = true;
2716 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2717 obstack_1grow (&collect_obstack, '=');
2719 for_each_path (paths, do_multi, 0, add_to_obstack, &info);
2721 obstack_1grow (&collect_obstack, '\0');
2722 return XOBFINISH (&collect_obstack, char *);
2725 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2729 putenv_from_prefixes (const struct path_prefix *paths, const char *env_var,
2732 xputenv (build_search_list (paths, env_var, true, do_multi));
2735 /* Check whether NAME can be accessed in MODE. This is like access,
2736 except that it never considers directories to be executable. */
2739 access_check (const char *name, int mode)
2745 if (stat (name, &st) < 0
2746 || S_ISDIR (st.st_mode))
2750 return access (name, mode);
2753 /* Callback for find_a_file. Appends the file name to the directory
2754 path. If the resulting file exists in the right mode, return the
2755 full pathname to the file. */
2757 struct file_at_path_info {
2766 file_at_path (char *path, void *data)
2768 struct file_at_path_info *info = (struct file_at_path_info *) data;
2769 size_t len = strlen (path);
2771 memcpy (path + len, info->name, info->name_len);
2772 len += info->name_len;
2774 /* Some systems have a suffix for executable files.
2775 So try appending that first. */
2776 if (info->suffix_len)
2778 memcpy (path + len, info->suffix, info->suffix_len + 1);
2779 if (access_check (path, info->mode) == 0)
2784 if (access_check (path, info->mode) == 0)
2790 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2791 access to check permissions. If DO_MULTI is true, search multilib
2792 paths then non-multilib paths, otherwise do not search multilib paths.
2793 Return 0 if not found, otherwise return its name, allocated with malloc. */
2796 find_a_file (const struct path_prefix *pprefix, const char *name, int mode,
2799 struct file_at_path_info info;
2801 #ifdef DEFAULT_ASSEMBLER
2802 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2803 return xstrdup (DEFAULT_ASSEMBLER);
2806 #ifdef DEFAULT_LINKER
2807 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2808 return xstrdup (DEFAULT_LINKER);
2811 /* Determine the filename to execute (special case for absolute paths). */
2813 if (IS_ABSOLUTE_PATH (name))
2815 if (access (name, mode) == 0)
2816 return xstrdup (name);
2822 info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "";
2823 info.name_len = strlen (info.name);
2824 info.suffix_len = strlen (info.suffix);
2827 return (char*) for_each_path (pprefix, do_multi,
2828 info.name_len + info.suffix_len,
2829 file_at_path, &info);
2832 /* Ranking of prefixes in the sort list. -B prefixes are put before
2835 enum path_prefix_priority
2837 PREFIX_PRIORITY_B_OPT,
2838 PREFIX_PRIORITY_LAST
2841 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2842 order according to PRIORITY. Within each PRIORITY, new entries are
2845 If WARN is nonzero, we will warn if no file is found
2846 through this prefix. WARN should point to an int
2847 which will be set to 1 if this entry is used.
2849 COMPONENT is the value to be passed to update_path.
2851 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2852 the complete value of machine_suffix.
2853 2 means try both machine_suffix and just_machine_suffix. */
2856 add_prefix (struct path_prefix *pprefix, const char *prefix,
2857 const char *component, /* enum prefix_priority */ int priority,
2858 int require_machine_suffix, int os_multilib)
2860 struct prefix_list *pl, **prev;
2863 for (prev = &pprefix->plist;
2864 (*prev) != NULL && (*prev)->priority <= priority;
2865 prev = &(*prev)->next)
2868 /* Keep track of the longest prefix. */
2870 prefix = update_path (prefix, component);
2871 len = strlen (prefix);
2872 if (len > pprefix->max_len)
2873 pprefix->max_len = len;
2875 pl = XNEW (struct prefix_list);
2876 pl->prefix = prefix;
2877 pl->require_machine_suffix = require_machine_suffix;
2878 pl->priority = priority;
2879 pl->os_multilib = os_multilib;
2881 /* Insert after PREV. */
2886 /* Same as add_prefix, but prepending target_system_root to prefix. */
2887 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2889 add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
2890 const char *component,
2891 /* enum prefix_priority */ int priority,
2892 int require_machine_suffix, int os_multilib)
2894 if (!IS_ABSOLUTE_PATH (prefix))
2895 fatal ("system path '%s' is not absolute", prefix);
2897 if (target_system_root)
2899 if (target_sysroot_suffix)
2900 prefix = concat (target_sysroot_suffix, prefix, NULL);
2901 prefix = concat (target_system_root, prefix, NULL);
2903 /* We have to override this because GCC's notion of sysroot
2904 moves along with GCC. */
2908 add_prefix (pprefix, prefix, component, priority,
2909 require_machine_suffix, os_multilib);
2912 /* Execute the command specified by the arguments on the current line of spec.
2913 When using pipes, this includes several piped-together commands
2914 with `|' between them.
2916 Return 0 if successful, -1 if failed. */
2922 int n_commands; /* # of command. */
2924 struct pex_obj *pex;
2927 const char *prog; /* program name. */
2928 const char **argv; /* vector of args. */
2931 struct command *commands; /* each command buffer with above info. */
2933 gcc_assert (!processing_spec_function);
2937 string = find_a_file (&exec_prefixes, argbuf[0], X_OK, false);
2938 argbuf[0] = (string) ? string : argbuf[0];
2939 insert_wrapper (wrapper_string);
2942 /* Count # of piped commands. */
2943 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2944 if (strcmp (argbuf[i], "|") == 0)
2947 /* Get storage for each command. */
2948 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2950 /* Split argbuf into its separate piped processes,
2951 and record info about each one.
2952 Also search for the programs that are to be run. */
2954 commands[0].prog = argbuf[0]; /* first command. */
2955 commands[0].argv = &argbuf[0];
2957 if (!wrapper_string)
2959 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false);
2960 commands[0].argv[0] = (string) ? string : commands[0].argv[0];
2963 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2964 if (strcmp (argbuf[i], "|") == 0)
2965 { /* each command. */
2966 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2967 fatal ("-pipe not supported");
2969 argbuf[i] = 0; /* termination of command args. */
2970 commands[n_commands].prog = argbuf[i + 1];
2971 commands[n_commands].argv = &argbuf[i + 1];
2972 string = find_a_file (&exec_prefixes, commands[n_commands].prog,
2975 commands[n_commands].argv[0] = string;
2979 argbuf[argbuf_index] = 0;
2981 /* If -v, print what we are about to do, and maybe query. */
2985 /* For help listings, put a blank line between sub-processes. */
2986 if (print_help_list)
2987 fputc ('\n', stderr);
2989 /* Print each piped command as a separate line. */
2990 for (i = 0; i < n_commands; i++)
2992 const char *const *j;
2994 if (verbose_only_flag)
2996 for (j = commands[i].argv; *j; j++)
2999 fprintf (stderr, " \"");
3000 for (p = *j; *p; ++p)
3002 if (*p == '"' || *p == '\\' || *p == '$')
3003 fputc ('\\', stderr);
3006 fputc ('"', stderr);
3010 for (j = commands[i].argv; *j; j++)
3011 fprintf (stderr, " %s", *j);
3013 /* Print a pipe symbol after all but the last command. */
3014 if (i + 1 != n_commands)
3015 fprintf (stderr, " |");
3016 fprintf (stderr, "\n");
3019 if (verbose_only_flag != 0)
3021 /* verbose_only_flag should act as if the spec was
3022 executed, so increment execution_count before
3023 returning. This prevents spurious warnings about
3024 unused linker input files, etc. */
3029 notice ("\nGo ahead? (y or n) ");
3033 while (getchar () != '\n')
3036 if (i != 'y' && i != 'Y')
3041 #ifdef ENABLE_VALGRIND_CHECKING
3042 /* Run the each command through valgrind. To simplify prepending the
3043 path to valgrind and the option "-q" (for quiet operation unless
3044 something triggers), we allocate a separate argv array. */
3046 for (i = 0; i < n_commands; i++)
3052 for (argc = 0; commands[i].argv[argc] != NULL; argc++)
3055 argv = XALLOCAVEC (const char *, argc + 3);
3057 argv[0] = VALGRIND_PATH;
3059 for (j = 2; j < argc + 2; j++)
3060 argv[j] = commands[i].argv[j - 2];
3063 commands[i].argv = argv;
3064 commands[i].prog = argv[0];
3068 /* Run each piped subprocess. */
3070 pex = pex_init (PEX_USE_PIPES | ((report_times || report_times_to_file)
3071 ? PEX_RECORD_TIMES : 0),
3072 programname, temp_filename);
3074 pfatal_with_name (_("pex_init failed"));
3076 for (i = 0; i < n_commands; i++)
3080 const char *string = commands[i].argv[0];
3082 errmsg = pex_run (pex,
3083 ((i + 1 == n_commands ? PEX_LAST : 0)
3084 | (string == commands[i].prog ? PEX_SEARCH : 0)),
3085 string, CONST_CAST (char **, commands[i].argv),
3094 pfatal_with_name (errmsg);
3098 if (string != commands[i].prog)
3099 free (CONST_CAST (char *, string));
3104 /* Wait for all the subprocesses to finish. */
3108 struct pex_time *times = NULL;
3111 statuses = (int *) alloca (n_commands * sizeof (int));
3112 if (!pex_get_status (pex, n_commands, statuses))
3113 pfatal_with_name (_("failed to get exit status"));
3115 if (report_times || report_times_to_file)
3117 times = (struct pex_time *) alloca (n_commands * sizeof (struct pex_time));
3118 if (!pex_get_times (pex, n_commands, times))
3119 pfatal_with_name (_("failed to get process times"));
3124 for (i = 0; i < n_commands; ++i)
3126 int status = statuses[i];
3128 if (WIFSIGNALED (status))
3131 /* SIGPIPE is a special case. It happens in -pipe mode
3132 when the compiler dies before the preprocessor is done,
3133 or the assembler dies before the compiler is done.
3134 There's generally been an error already, and this is
3135 just fallout. So don't generate another error unless
3136 we would otherwise have succeeded. */
3137 if (WTERMSIG (status) == SIGPIPE
3138 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
3146 Internal error: %s (program %s)\n\
3147 Please submit a full bug report.\n\
3148 See %s for instructions.",
3149 strsignal (WTERMSIG (status)), commands[i].prog,
3152 else if (WIFEXITED (status)
3153 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
3155 if (WEXITSTATUS (status) > greatest_status)
3156 greatest_status = WEXITSTATUS (status);
3160 if (report_times || report_times_to_file)
3162 struct pex_time *pt = ×[i];
3165 ut = ((double) pt->user_seconds
3166 + (double) pt->user_microseconds / 1.0e6);
3167 st = ((double) pt->system_seconds
3168 + (double) pt->system_microseconds / 1.0e6);
3173 notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
3175 if (report_times_to_file)
3178 const char *const *j;
3180 fprintf (report_times_to_file, "%g %g", ut, st);
3182 for (j = &commands[i].prog; *j; j = &commands[i].argv[++c])
3185 for (p = *j; *p; ++p)
3186 if (*p == '"' || *p == '\\' || *p == '$'
3192 fprintf (report_times_to_file, " \"");
3193 for (p = *j; *p; ++p)
3195 if (*p == '"' || *p == '\\' || *p == '$')
3196 fputc ('\\', report_times_to_file);
3197 fputc (*p, report_times_to_file);
3199 fputc ('"', report_times_to_file);
3202 fprintf (report_times_to_file, " %s", *j);
3205 fputc ('\n', report_times_to_file);
3215 /* Find all the switches given to us
3216 and make a vector describing them.
3217 The elements of the vector are strings, one per switch given.
3218 If a switch uses following arguments, then the `part1' field
3219 is the switch itself and the `args' field
3220 is a null-terminated vector containing the following arguments.
3221 Bits in the `live_cond' field are:
3222 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3223 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3224 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3225 The `validated' field is nonzero if any spec has looked at this switch;
3226 if it remains zero at the end of the run, it must be meaningless. */
3228 #define SWITCH_LIVE 0x1
3229 #define SWITCH_FALSE 0x2
3230 #define SWITCH_IGNORE 0x4
3236 unsigned int live_cond;
3237 unsigned char validated;
3238 unsigned char ordering;
3241 static struct switchstr *switches;
3243 static int n_switches;
3245 /* Set to zero if -fcompare-debug is disabled, positive if it's
3246 enabled and we're running the first compilation, negative if it's
3247 enabled and we're running the second compilation. For most of the
3248 time, it's in the range -1..1, but it can be temporarily set to 2
3249 or 3 to indicate that the -fcompare-debug flags didn't come from
3250 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3251 variable, until a synthesized -fcompare-debug flag is added to the
3255 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3256 int compare_debug_second;
3258 /* Set to the flags that should be passed to the second compilation in
3259 a -fcompare-debug compilation. */
3260 const char *compare_debug_opt;
3262 static struct switchstr *switches_debug_check[2];
3264 static int n_switches_debug_check[2];
3266 static char *debug_check_temp_file[2];
3268 /* Language is one of three things:
3270 1) The name of a real programming language.
3271 2) NULL, indicating that no one has figured out
3273 3) '*', indicating that the file should be passed
3278 const char *language;
3279 struct compiler *incompiler;
3284 /* Also a vector of input files specified. */
3286 static struct infile *infiles;
3290 /* True if multiple input files are being compiled to a single
3293 static bool combine_inputs;
3295 /* This counts the number of libraries added by lang_specific_driver, so that
3296 we can tell if there were any user supplied any files or libraries. */
3298 static int added_libraries;
3300 /* And a vector of corresponding output files is made up later. */
3302 const char **outfiles;
3304 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3306 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3307 is true if we should look for an executable suffix. DO_OBJ
3308 is true if we should look for an object suffix. */
3311 convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
3312 int do_obj ATTRIBUTE_UNUSED)
3314 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3322 len = strlen (name);
3324 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3325 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3326 if (do_obj && len > 2
3327 && name[len - 2] == '.'
3328 && name[len - 1] == 'o')
3330 obstack_grow (&obstack, name, len - 2);
3331 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
3332 name = XOBFINISH (&obstack, const char *);
3336 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3337 /* If there is no filetype, make it the executable suffix (which includes
3338 the "."). But don't get confused if we have just "-o". */
3339 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
3342 for (i = len - 1; i >= 0; i--)
3343 if (IS_DIR_SEPARATOR (name[i]))
3346 for (i++; i < len; i++)
3350 obstack_grow (&obstack, name, len);
3351 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
3352 strlen (TARGET_EXECUTABLE_SUFFIX));
3353 name = XOBFINISH (&obstack, const char *);
3360 /* Display the command line switches accepted by gcc. */
3364 printf (_("Usage: %s [options] file...\n"), programname);
3365 fputs (_("Options:\n"), stdout);
3367 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
3368 fputs (_(" --help Display this information\n"), stdout);
3369 fputs (_(" --target-help Display target specific command line options\n"), stdout);
3370 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout);
3371 fputs (_(" Display specific types of command line options\n"), stdout);
3373 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
3374 fputs (_(" --version Display compiler version information\n"), stdout);
3375 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
3376 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
3377 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
3378 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
3379 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
3380 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
3381 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
3382 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
3384 -print-multi-lib Display the mapping between command line options and\n\
3385 multiple library search directories\n"), stdout);
3386 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
3387 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout);
3388 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout);
3389 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
3390 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
3391 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
3392 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout);
3393 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout);
3394 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
3395 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout);
3396 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
3397 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout);
3399 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3400 prefixes to other gcc components\n"), stdout);
3401 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
3402 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
3403 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
3404 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
3406 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3407 and libraries\n"), stdout);
3408 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
3409 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
3410 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
3411 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
3412 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
3413 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3414 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3415 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3416 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3418 -x <language> Specify the language of the following input files\n\
3419 Permissible languages include: c c++ assembler none\n\
3420 'none' means revert to the default behavior of\n\
3421 guessing the language based on the file's extension\n\
3425 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3426 passed on to the various sub-processes invoked by %s. In order to pass\n\
3427 other options on to these processes the -W<letter> options must be used.\n\
3430 /* The rest of the options are displayed by invocations of the various
3435 add_preprocessor_option (const char *option, int len)
3437 n_preprocessor_options++;
3439 if (! preprocessor_options)
3440 preprocessor_options = XNEWVEC (char *, n_preprocessor_options);
3442 preprocessor_options = XRESIZEVEC (char *, preprocessor_options,
3443 n_preprocessor_options);
3445 preprocessor_options [n_preprocessor_options - 1] =
3446 save_string (option, len);
3450 add_assembler_option (const char *option, int len)
3452 n_assembler_options++;
3454 if (! assembler_options)
3455 assembler_options = XNEWVEC (char *, n_assembler_options);
3457 assembler_options = XRESIZEVEC (char *, assembler_options,
3458 n_assembler_options);
3460 assembler_options [n_assembler_options - 1] = save_string (option, len);
3464 add_linker_option (const char *option, int len)
3468 if (! linker_options)
3469 linker_options = XNEWVEC (char *, n_linker_options);
3471 linker_options = XRESIZEVEC (char *, linker_options, n_linker_options);
3473 linker_options [n_linker_options - 1] = save_string (option, len);
3476 /* Create the vector `switches' and its contents.
3477 Store its length in `n_switches'. */
3480 process_command (int argc, const char **argv)
3485 const char *spec_lang = 0;
3486 int last_language_n_infiles;
3487 int lang_n_infiles = 0;
3488 #ifdef MODIFY_TARGET_NAME
3489 int is_modify_target_name;
3492 const char *tooldir_prefix;
3493 char *(*get_relative_prefix) (const char *, const char *,
3494 const char *) = NULL;
3496 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3500 added_libraries = 0;
3502 /* Figure compiler version from version string. */
3504 compiler_version = temp1 = xstrdup (version_string);
3506 for (; *temp1; ++temp1)
3515 /* If there is a -V or -b option (or both), process it now, before
3516 trying to interpret the rest of the command line.
3517 Use heuristic that all configuration names must have at least
3518 one dash '-'. This allows us to pass options starting with -b. */
3519 if (argc > 1 && argv[1][0] == '-'
3520 && (argv[1][1] == 'V'
3521 || (argv[1][1] == 'b'
3522 && (argv[1][2] == '\0'
3523 || NULL != strchr (argv[1] + 2, '-')))))
3525 const char *new_version = DEFAULT_TARGET_VERSION;
3526 const char *new_machine = DEFAULT_TARGET_MACHINE;
3527 const char *progname = argv[0];
3535 while (argc > 1 && argv[1][0] == '-'
3536 && (argv[1][1] == 'V'
3537 || (argv[1][1] == 'b'
3538 && (argv[1][2] == '\0'
3539 || NULL != strchr (argv[1] + 2, '-')))))
3541 char opt = argv[1][1];
3543 if (argv[1][2] != '\0')
3556 fatal ("'-%c' option must have argument", opt);
3563 for (baselen = strlen (progname); baselen > 0; baselen--)
3564 if (IS_DIR_SEPARATOR (progname[baselen-1]))
3566 new_argv0 = XDUPVAR (char, progname, baselen,
3567 baselen + concat_length (new_version, new_machine,
3568 "-gcc-", NULL) + 1);
3569 strcpy (new_argv0 + baselen, new_machine);
3570 strcat (new_argv0, "-gcc-");
3571 strcat (new_argv0, new_version);
3573 new_argv = XDUPVEC (char *, argv, argc + 1);
3574 new_argv[0] = new_argv0;
3576 errmsg = pex_one (PEX_SEARCH, new_argv0, new_argv, progname, NULL,
3577 NULL, &status, &err);
3582 fatal ("couldn't run '%s': %s", new_argv0, errmsg);
3584 fatal ("couldn't run '%s': %s: %s", new_argv0, errmsg,
3590 /* Convert new-style -- options to old-style. */
3591 translate_options (&argc,
3592 CONST_CAST2 (const char *const **, const char ***,
3595 /* Do language-specific adjustment/addition of flags. */
3596 lang_specific_driver (&argc,
3597 CONST_CAST2 (const char *const **, const char ***,
3601 /* Handle any -no-canonical-prefixes flag early, to assign the function
3602 that builds relative prefixes. This function creates default search
3603 paths that are needed later in normal option handling. */
3605 for (i = 1; i < argc; i++)
3607 if (! strcmp (argv[i], "-no-canonical-prefixes"))
3609 get_relative_prefix = make_relative_prefix_ignore_links;
3613 if (! get_relative_prefix)
3614 get_relative_prefix = make_relative_prefix;
3616 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3617 see if we can create it from the pathname specified in argv[0]. */
3619 gcc_libexec_prefix = standard_libexec_prefix;
3621 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3622 if (!gcc_exec_prefix)
3624 gcc_exec_prefix = get_relative_prefix (argv[0],
3625 standard_bindir_prefix,
3626 standard_exec_prefix);
3627 gcc_libexec_prefix = get_relative_prefix (argv[0],
3628 standard_bindir_prefix,
3629 standard_libexec_prefix);
3630 if (gcc_exec_prefix)
3631 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3635 /* make_relative_prefix requires a program name, but
3636 GCC_EXEC_PREFIX is typically a directory name with a trailing
3637 / (which is ignored by make_relative_prefix), so append a
3639 char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL);
3640 gcc_libexec_prefix = get_relative_prefix (tmp_prefix,
3641 standard_exec_prefix,
3642 standard_libexec_prefix);
3644 /* The path is unrelocated, so fallback to the original setting. */
3645 if (!gcc_libexec_prefix)
3646 gcc_libexec_prefix = standard_libexec_prefix;
3652 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3653 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3654 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3656 if (gcc_exec_prefix)
3658 int len = strlen (gcc_exec_prefix);
3660 if (len > (int) sizeof ("/lib/gcc/") - 1
3661 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3663 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
3664 if (IS_DIR_SEPARATOR (*temp)
3665 && strncmp (temp + 1, "lib", 3) == 0
3666 && IS_DIR_SEPARATOR (temp[4])
3667 && strncmp (temp + 5, "gcc", 3) == 0)
3668 len -= sizeof ("/lib/gcc/") - 1;
3671 set_std_prefix (gcc_exec_prefix, len);
3672 add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
3673 PREFIX_PRIORITY_LAST, 0, 0);
3674 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3675 PREFIX_PRIORITY_LAST, 0, 0);
3678 /* COMPILER_PATH and LIBRARY_PATH have values
3679 that are lists of directory names with colons. */
3681 GET_ENVIRONMENT (temp, "COMPILER_PATH");
3684 const char *startp, *endp;
3685 char *nstore = (char *) alloca (strlen (temp) + 3);
3687 startp = endp = temp;
3690 if (*endp == PATH_SEPARATOR || *endp == 0)
3692 strncpy (nstore, startp, endp - startp);
3694 strcpy (nstore, concat (".", dir_separator_str, NULL));
3695 else if (!IS_DIR_SEPARATOR (endp[-1]))
3697 nstore[endp - startp] = DIR_SEPARATOR;
3698 nstore[endp - startp + 1] = 0;
3701 nstore[endp - startp] = 0;
3702 add_prefix (&exec_prefixes, nstore, 0,
3703 PREFIX_PRIORITY_LAST, 0, 0);
3704 add_prefix (&include_prefixes, nstore, 0,
3705 PREFIX_PRIORITY_LAST, 0, 0);
3708 endp = startp = endp + 1;
3715 GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
3716 if (temp && *cross_compile == '0')
3718 const char *startp, *endp;
3719 char *nstore = (char *) alloca (strlen (temp) + 3);
3721 startp = endp = temp;
3724 if (*endp == PATH_SEPARATOR || *endp == 0)
3726 strncpy (nstore, startp, endp - startp);
3728 strcpy (nstore, concat (".", dir_separator_str, NULL));
3729 else if (!IS_DIR_SEPARATOR (endp[-1]))
3731 nstore[endp - startp] = DIR_SEPARATOR;
3732 nstore[endp - startp + 1] = 0;
3735 nstore[endp - startp] = 0;
3736 add_prefix (&startfile_prefixes, nstore, NULL,
3737 PREFIX_PRIORITY_LAST, 0, 1);
3740 endp = startp = endp + 1;
3747 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3748 GET_ENVIRONMENT (temp, "LPATH");
3749 if (temp && *cross_compile == '0')
3751 const char *startp, *endp;
3752 char *nstore = (char *) alloca (strlen (temp) + 3);
3754 startp = endp = temp;
3757 if (*endp == PATH_SEPARATOR || *endp == 0)
3759 strncpy (nstore, startp, endp - startp);
3761 strcpy (nstore, concat (".", dir_separator_str, NULL));
3762 else if (!IS_DIR_SEPARATOR (endp[-1]))
3764 nstore[endp - startp] = DIR_SEPARATOR;
3765 nstore[endp - startp + 1] = 0;
3768 nstore[endp - startp] = 0;
3769 add_prefix (&startfile_prefixes, nstore, NULL,
3770 PREFIX_PRIORITY_LAST, 0, 1);
3773 endp = startp = endp + 1;
3780 /* Scan argv twice. Here, the first time, just count how many switches
3781 there will be in their vector, and how many input files in theirs.
3782 Here we also parse the switches that cc itself uses (e.g. -v). */
3784 for (i = 1; i < argc; i++)
3786 if (! strcmp (argv[i], "-dumpspecs"))
3788 struct spec_list *sl;
3790 for (sl = specs; sl; sl = sl->next)
3791 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3792 if (link_command_spec)
3793 printf ("*link_command:\n%s\n\n", link_command_spec);
3796 else if (! strcmp (argv[i], "-dumpversion"))
3798 printf ("%s\n", spec_version);
3801 else if (! strcmp (argv[i], "-dumpmachine"))
3803 printf ("%s\n", spec_machine);
3806 else if (strcmp (argv[i], "-fversion") == 0)
3808 /* translate_options () has turned --version into -fversion. */
3811 /* We will be passing a dummy file on to the sub-processes. */
3815 /* CPP driver cannot obtain switch from cc1_options. */
3817 add_preprocessor_option ("--version", strlen ("--version"));
3818 add_assembler_option ("--version", strlen ("--version"));
3819 add_linker_option ("--version", strlen ("--version"));
3821 else if (strcmp (argv[i], "-fhelp") == 0)
3823 /* translate_options () has turned --help into -fhelp. */
3824 print_help_list = 1;
3826 /* We will be passing a dummy file on to the sub-processes. */
3830 /* CPP driver cannot obtain switch from cc1_options. */
3832 add_preprocessor_option ("--help", 6);
3833 add_assembler_option ("--help", 6);
3834 add_linker_option ("--help", 6);
3836 else if (strncmp (argv[i], "-fhelp=", 7) == 0)
3838 /* translate_options () has turned --help into -fhelp. */
3839 print_subprocess_help = 2;
3841 /* We will be passing a dummy file on to the sub-processes. */
3845 else if (strcmp (argv[i], "-ftarget-help") == 0)
3847 /* translate_options() has turned --target-help into -ftarget-help. */
3848 print_subprocess_help = 1;
3850 /* We will be passing a dummy file on to the sub-processes. */
3854 /* CPP driver cannot obtain switch from cc1_options. */
3856 add_preprocessor_option ("--target-help", 13);
3857 add_assembler_option ("--target-help", 13);
3858 add_linker_option ("--target-help", 13);
3860 else if (! strcmp (argv[i], "-pass-exit-codes"))
3862 pass_exit_codes = 1;
3865 else if (! strcmp (argv[i], "-print-search-dirs"))
3866 print_search_dirs = 1;
3867 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3868 print_file_name = "libgcc.a";
3869 else if (! strncmp (argv[i], "-print-file-name=", 17))
3870 print_file_name = argv[i] + 17;
3871 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3872 print_prog_name = argv[i] + 17;
3873 else if (! strcmp (argv[i], "-print-multi-lib"))
3874 print_multi_lib = 1;
3875 else if (! strcmp (argv[i], "-print-multi-directory"))
3876 print_multi_directory = 1;
3877 else if (! strcmp (argv[i], "-print-sysroot"))
3879 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3880 print_multi_os_directory = 1;
3881 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
3882 print_sysroot_headers_suffix = 1;
3883 else if (! strcmp (argv[i], "-fcompare-debug-second"))
3885 compare_debug_second = 1;
3888 else if (! strcmp (argv[i], "-fno-compare-debug"))
3890 argv[i] = "-fcompare-debug=";
3891 goto compare_debug_with_arg;
3893 else if (! strcmp (argv[i], "-fcompare-debug"))
3895 argv[i] = "-fcompare-debug=-gtoggle";
3896 goto compare_debug_with_arg;
3898 #define OPT "-fcompare-debug="
3899 else if (! strncmp (argv[i], OPT, sizeof (OPT) - 1))
3902 compare_debug_with_arg:
3903 opt = argv[i] + sizeof (OPT) - 1;
3909 if (compare_debug < 0)
3910 compare_debug_opt = NULL;
3912 compare_debug_opt = opt;
3915 else if (! strncmp (argv[i], "-Wa,", 4))
3918 /* Pass the rest of this option to the assembler. */
3920 /* Split the argument at commas. */
3922 for (j = 4; argv[i][j]; j++)
3923 if (argv[i][j] == ',')
3925 add_assembler_option (argv[i] + prev, j - prev);
3929 /* Record the part after the last comma. */
3930 add_assembler_option (argv[i] + prev, j - prev);
3932 else if (! strncmp (argv[i], "-Wp,", 4))
3935 /* Pass the rest of this option to the preprocessor. */
3937 /* Split the argument at commas. */
3939 for (j = 4; argv[i][j]; j++)
3940 if (argv[i][j] == ',')
3942 add_preprocessor_option (argv[i] + prev, j - prev);
3946 /* Record the part after the last comma. */
3947 add_preprocessor_option (argv[i] + prev, j - prev);
3949 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3950 /* The +e options to the C++ front-end. */
3952 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3955 /* Split the argument at commas. */
3956 for (j = 3; argv[i][j]; j++)
3957 n_infiles += (argv[i][j] == ',');
3959 else if (strcmp (argv[i], "-Xlinker") == 0)
3962 fatal ("argument to '-Xlinker' is missing");
3967 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3970 fatal ("argument to '-Xpreprocessor' is missing");
3972 add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
3974 else if (strcmp (argv[i], "-Xassembler") == 0)
3977 fatal ("argument to '-Xassembler' is missing");
3979 add_assembler_option (argv[i+1], strlen (argv[i+1]));
3981 else if (strcmp (argv[i], "-l") == 0)
3984 fatal ("argument to '-l' is missing");
3989 else if (strncmp (argv[i], "-l", 2) == 0)
3991 else if (strcmp (argv[i], "-save-temps") == 0)
3993 save_temps_flag = SAVE_TEMPS_CWD;
3996 else if (strncmp (argv[i], "-save-temps=", 12) == 0)
3999 if (strcmp (argv[i]+12, "cwd") == 0)
4000 save_temps_flag = SAVE_TEMPS_CWD;
4001 else if (strcmp (argv[i]+12, "obj") == 0
4002 || strcmp (argv[i]+12, "object") == 0)
4003 save_temps_flag = SAVE_TEMPS_OBJ;
4005 fatal ("'%s' is an unknown -save-temps option", argv[i]);
4007 else if (strcmp (argv[i], "-no-canonical-prefixes") == 0)
4008 /* Already handled as a special case, so ignored here. */
4010 else if (strcmp (argv[i], "-combine") == 0)
4015 else if (strcmp (argv[i], "-specs") == 0)
4017 struct user_specs *user = XNEW (struct user_specs);
4019 fatal ("argument to '-specs' is missing");
4021 user->next = (struct user_specs *) 0;
4022 user->filename = argv[i];
4023 if (user_specs_tail)
4024 user_specs_tail->next = user;
4026 user_specs_head = user;
4027 user_specs_tail = user;
4029 else if (strncmp (argv[i], "-specs=", 7) == 0)
4031 struct user_specs *user = XNEW (struct user_specs);
4032 if (strlen (argv[i]) == 7)
4033 fatal ("argument to '-specs=' is missing");
4035 user->next = (struct user_specs *) 0;
4036 user->filename = argv[i] + 7;
4037 if (user_specs_tail)
4038 user_specs_tail->next = user;
4040 user_specs_head = user;
4041 user_specs_tail = user;
4043 else if (strcmp (argv[i], "-time") == 0)
4045 else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
4047 if (report_times_to_file)
4048 fclose (report_times_to_file);
4049 report_times_to_file = fopen (argv[i] + sizeof ("-time=") - 1, "a");
4051 else if (strcmp (argv[i], "-pipe") == 0)
4053 /* -pipe has to go into the switches array as well as
4058 else if (strcmp (argv[i], "-wrapper") == 0)
4061 fatal ("argument to '-wrapper' is missing");
4063 wrapper_string = argv[i];
4067 else if (strcmp (argv[i], "-###") == 0)
4069 /* This is similar to -v except that there is no execution
4070 of the commands and the echoed arguments are quoted. It
4071 is intended for use in shell scripts to capture the
4072 driver-generated command line. */
4073 verbose_only_flag++;
4076 else if (argv[i][0] == '-' && argv[i][1] != 0)
4078 const char *p = &argv[i][1];
4084 if (p[1] && NULL == strchr (argv[i] + 2, '-'))
4089 fatal ("'-%c' must come at the start of the command line", c);
4097 if (p[1] == 0 && i + 1 == argc)
4098 fatal ("argument to '-B' is missing");
4104 len = strlen (value);
4106 /* Catch the case where the user has forgotten to append a
4107 directory separator to the path. Note, they may be using
4108 -B to add an executable name prefix, eg "i386-elf-", in
4109 order to distinguish between multiple installations of
4110 GCC in the same directory. Hence we must check to see
4111 if appending a directory separator actually makes a
4112 valid directory name. */
4113 if (! IS_DIR_SEPARATOR (value [len - 1])
4114 && is_directory (value, false))
4116 char *tmp = XNEWVEC (char, len + 2);
4117 strcpy (tmp, value);
4118 tmp[len] = DIR_SEPARATOR;
4123 add_prefix (&exec_prefixes, value, NULL,
4124 PREFIX_PRIORITY_B_OPT, 0, 0);
4125 add_prefix (&startfile_prefixes, value, NULL,
4126 PREFIX_PRIORITY_B_OPT, 0, 0);
4127 add_prefix (&include_prefixes, value, NULL,
4128 PREFIX_PRIORITY_B_OPT, 0, 0);
4133 case 'v': /* Print our subcommands and print versions. */
4135 /* If they do anything other than exactly `-v', don't set
4136 verbose_flag; rather, continue on to give the error. */
4154 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
4159 /* Forward scan, just in case -S or -c is specified
4166 if (argv[j][0] == '-')
4168 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
4174 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
4175 j += skip - (argv[j][2] != 0);
4176 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
4183 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4185 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
4187 argv[i] = convert_filename (argv[i], ! have_c, 0);
4189 /* Save the output name in case -save-temps=obj was used. */
4190 if ((p[1] == 0) && argv[i + 1])
4191 save_temps_prefix = xstrdup(argv[i + 1]);
4193 save_temps_prefix = xstrdup(argv[i] + 1);
4199 #ifdef MODIFY_TARGET_NAME
4200 is_modify_target_name = 0;
4202 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4203 if (! strcmp (argv[i], modify_target[j].sw))
4205 char *new_name = XNEWVEC (char, strlen (modify_target[j].str)
4206 + strlen (spec_machine));
4209 int made_addition = 0;
4211 is_modify_target_name = 1;
4212 for (p = spec_machine, q = new_name; *p != 0; )
4214 if (modify_target[j].add_del == DELETE
4215 && (! strncmp (q, modify_target[j].str,
4216 strlen (modify_target[j].str))))
4217 p += strlen (modify_target[j].str);
4218 else if (modify_target[j].add_del == ADD
4219 && ! made_addition && *p == '-')
4221 for (r = modify_target[j].str; *r != 0; )
4229 spec_machine = new_name;
4232 if (is_modify_target_name)
4238 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
4239 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
4240 else if (WORD_SWITCH_TAKES_ARG (p))
4241 i += WORD_SWITCH_TAKES_ARG (p);
4251 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4252 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4253 if (save_temps_flag == SAVE_TEMPS_OBJ && save_temps_prefix != NULL)
4255 save_temps_length = strlen (save_temps_prefix);
4256 temp = strrchr (lbasename (save_temps_prefix), '.');
4259 save_temps_length -= strlen (temp);
4260 save_temps_prefix[save_temps_length] = '\0';
4264 else if (save_temps_prefix != NULL)
4266 free (save_temps_prefix);
4267 save_temps_prefix = NULL;
4270 if (save_temps_flag && use_pipes)
4272 /* -save-temps overrides -pipe, so that temp files are produced */
4273 if (save_temps_flag)
4274 error ("warning: -pipe ignored because -save-temps specified");
4280 const char *gcd = getenv ("GCC_COMPARE_DEBUG");
4282 if (gcd && gcd[0] == '-')
4285 compare_debug_opt = gcd;
4288 else if (gcd && *gcd && strcmp (gcd, "0"))
4291 compare_debug_opt = "-gtoggle";
4295 else if (compare_debug < 0)
4298 gcc_assert (!compare_debug_opt);
4301 /* Set up the search paths. We add directories that we expect to
4302 contain GNU Toolchain components before directories specified by
4303 the machine description so that we will find GNU components (like
4304 the GNU assembler) before those of the host system. */
4306 /* If we don't know where the toolchain has been installed, use the
4307 configured-in locations. */
4308 if (!gcc_exec_prefix)
4311 add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
4312 PREFIX_PRIORITY_LAST, 1, 0);
4313 add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
4314 PREFIX_PRIORITY_LAST, 2, 0);
4315 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
4316 PREFIX_PRIORITY_LAST, 2, 0);
4318 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
4319 PREFIX_PRIORITY_LAST, 1, 0);
4322 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix));
4323 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
4324 dir_separator_str, NULL);
4326 /* Look for tools relative to the location from which the driver is
4327 running, or, if that is not available, the configured prefix. */
4329 = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
4330 spec_machine, dir_separator_str,
4331 spec_version, dir_separator_str, tooldir_prefix, NULL);
4333 add_prefix (&exec_prefixes,
4334 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
4335 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
4336 add_prefix (&startfile_prefixes,
4337 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
4338 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
4340 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4341 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4342 then consider it to relocate with the rest of the GCC installation
4343 if GCC_EXEC_PREFIX is set.
4344 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4345 if (target_system_root && gcc_exec_prefix)
4347 char *tmp_prefix = get_relative_prefix (argv[0],
4348 standard_bindir_prefix,
4349 target_system_root);
4350 if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
4352 target_system_root = tmp_prefix;
4353 target_system_root_changed = 1;
4358 /* More prefixes are enabled in main, after we read the specs file
4359 and determine whether this is cross-compilation or not. */
4361 /* Then create the space for the vectors and scan again. */
4363 switches = XNEWVEC (struct switchstr, n_switches + 1);
4364 infiles = XNEWVEC (struct infile, n_infiles + 1);
4367 last_language_n_infiles = -1;
4369 /* This, time, copy the text of each switch and store a pointer
4370 to the copy in the vector of switches.
4371 Store all the infiles in their vector. */
4373 for (i = 1; i < argc; i++)
4375 /* Just skip the switches that were handled by the preceding loop. */
4376 #ifdef MODIFY_TARGET_NAME
4377 is_modify_target_name = 0;
4379 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4380 if (! strcmp (argv[i], modify_target[j].sw))
4381 is_modify_target_name = 1;
4383 if (is_modify_target_name)
4387 if (! strncmp (argv[i], "-Wa,", 4))
4389 else if (! strncmp (argv[i], "-Wp,", 4))
4391 else if (! strcmp (argv[i], "-no-canonical-prefixes"))
4393 else if (! strcmp (argv[i], "-pass-exit-codes"))
4395 else if (! strcmp (argv[i], "-print-search-dirs"))
4397 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
4399 else if (! strncmp (argv[i], "-print-file-name=", 17))
4401 else if (! strncmp (argv[i], "-print-prog-name=", 17))
4403 else if (! strcmp (argv[i], "-print-multi-lib"))
4405 else if (! strcmp (argv[i], "-print-multi-directory"))
4407 else if (! strcmp (argv[i], "-print-sysroot"))
4409 else if (! strcmp (argv[i], "-print-multi-os-directory"))
4411 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
4413 else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
4415 target_system_root = argv[i] + strlen ("--sysroot=");
4416 target_system_root_changed = 1;
4418 else if (argv[i][0] == '+' && argv[i][1] == 'e')
4420 /* Compensate for the +e options to the C++ front-end;
4421 they're there simply for cfront call-compatibility. We do
4422 some magic in default_compilers to pass them down properly.
4423 Note we deliberately start at the `+' here, to avoid passing
4424 -e0 or -e1 down into the linker. */
4425 switches[n_switches].part1 = &argv[i][0];
4426 switches[n_switches].args = 0;
4427 switches[n_switches].live_cond = 0;
4428 switches[n_switches].validated = 0;
4431 else if (strncmp (argv[i], "-Wl,", 4) == 0)
4434 /* Split the argument at commas. */
4436 for (j = 4; argv[i][j]; j++)
4437 if (argv[i][j] == ',')
4439 infiles[n_infiles].language = "*";
4440 infiles[n_infiles++].name
4441 = save_string (argv[i] + prev, j - prev);
4444 /* Record the part after the last comma. */
4445 infiles[n_infiles].language = "*";
4446 infiles[n_infiles++].name = argv[i] + prev;
4448 else if (strcmp (argv[i], "-Xlinker") == 0)
4450 infiles[n_infiles].language = "*";
4451 infiles[n_infiles++].name = argv[++i];
4453 /* Xassembler and Xpreprocessor were already handled in the first argv
4454 scan, so all we need to do here is ignore them and their argument. */
4455 else if (strcmp (argv[i], "-Xassembler") == 0)
4457 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
4459 else if (strcmp (argv[i], "-l") == 0)
4460 { /* POSIX allows separation of -l and the lib arg;
4461 canonicalize by concatenating -l with its arg */
4462 infiles[n_infiles].language = "*";
4463 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
4465 else if (strncmp (argv[i], "-l", 2) == 0)
4467 infiles[n_infiles].language = "*";
4468 infiles[n_infiles++].name = argv[i];
4470 else if (strcmp (argv[i], "-wrapper") == 0)
4472 else if (strcmp (argv[i], "-specs") == 0)
4474 else if (strncmp (argv[i], "-specs=", 7) == 0)
4476 else if (strcmp (argv[i], "-time") == 0)
4478 else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
4480 else if (strcmp (argv[i], "-###") == 0)
4482 else if (argv[i][0] == '-' && argv[i][1] != 0)
4484 const char *p = &argv[i][1];
4489 if (p[1] == 0 && i + 1 == argc)
4490 fatal ("argument to '-x' is missing");
4492 spec_lang = argv[++i];
4495 if (! strcmp (spec_lang, "none"))
4496 /* Suppress the warning if -xnone comes after the last input
4497 file, because alternate command interfaces like g++ might
4498 find it useful to place -xnone after each input file. */
4501 last_language_n_infiles = n_infiles;
4504 switches[n_switches].part1 = p;
4505 /* Deal with option arguments in separate argv elements. */
4506 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4507 || WORD_SWITCH_TAKES_ARG (p))
4510 int n_args = WORD_SWITCH_TAKES_ARG (p);
4514 /* Count only the option arguments in separate argv elements. */
4515 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4517 if (i + n_args >= argc)
4518 fatal ("argument to '-%s' is missing", p);
4519 switches[n_switches].args
4520 = XNEWVEC (const char *, n_args + 1);
4522 switches[n_switches].args[j++] = argv[++i];
4523 /* Null-terminate the vector. */
4524 switches[n_switches].args[j] = 0;
4526 else if (strchr (switches_need_spaces, c))
4528 /* On some systems, ld cannot handle some options without
4529 a space. So split the option from its argument. */
4530 char *part1 = XNEWVEC (char, 2);
4534 switches[n_switches].part1 = part1;
4535 switches[n_switches].args = XNEWVEC (const char *, 2);
4536 switches[n_switches].args[0] = xstrdup (p+1);
4537 switches[n_switches].args[1] = 0;
4540 switches[n_switches].args = 0;
4542 switches[n_switches].live_cond = 0;
4543 switches[n_switches].validated = 0;
4544 switches[n_switches].ordering = 0;
4545 /* These are always valid, since gcc.c itself understands the
4546 first four and gfortranspec.c understands -static-libgfortran. */
4547 if (!strcmp (p, "save-temps")
4548 || !strcmp (p, "static-libgcc")
4549 || !strcmp (p, "shared-libgcc")
4550 || !strcmp (p, "pipe")
4551 || !strcmp (p, "static-libgfortran"))
4552 switches[n_switches].validated = 1;
4555 char ch = switches[n_switches].part1[0];
4557 switches[n_switches].validated = 1;
4563 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4564 argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
4567 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
4569 perror_with_name (argv[i]);
4574 infiles[n_infiles].language = spec_lang;
4575 infiles[n_infiles++].name = argv[i];
4580 if (n_infiles == last_language_n_infiles && spec_lang != 0)
4581 error ("warning: '-x %s' after last input file has no effect", spec_lang);
4583 if (compare_debug == 2 || compare_debug == 3)
4585 switches[n_switches].part1 = concat ("fcompare-debug=",
4588 switches[n_switches].args = 0;
4589 switches[n_switches].live_cond = 0;
4590 switches[n_switches].validated = 0;
4591 switches[n_switches].ordering = 0;
4596 /* Ensure we only invoke each subprocess once. */
4597 if (print_subprocess_help || print_help_list || print_version)
4601 /* Create a dummy input file, so that we can pass
4602 the help option on to the various sub-processes. */
4603 infiles[0].language = "c";
4604 infiles[0].name = "help-dummy";
4607 switches[n_switches].part1 = 0;
4608 infiles[n_infiles].name = 0;
4611 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4612 and place that in the environment. */
4615 set_collect_gcc_options (void)
4620 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4622 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4623 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4626 for (i = 0; (int) i < n_switches; i++)
4628 const char *const *args;
4631 obstack_grow (&collect_obstack, " ", 1);
4635 /* Ignore elided switches. */
4636 if ((switches[i].live_cond & SWITCH_IGNORE) != 0)
4639 /* Don't use -fwhole-program when compiling the init and fini routines,
4640 since we'd wrongly assume that the routines aren't needed. */
4641 if (strcmp (switches[i].part1, "fwhole-program") == 0)
4644 obstack_grow (&collect_obstack, "'-", 2);
4645 q = switches[i].part1;
4646 while ((p = strchr (q, '\'')))
4648 obstack_grow (&collect_obstack, q, p - q);
4649 obstack_grow (&collect_obstack, "'\\''", 4);
4652 obstack_grow (&collect_obstack, q, strlen (q));
4653 obstack_grow (&collect_obstack, "'", 1);
4655 for (args = switches[i].args; args && *args; args++)
4657 obstack_grow (&collect_obstack, " '", 2);
4659 while ((p = strchr (q, '\'')))
4661 obstack_grow (&collect_obstack, q, p - q);
4662 obstack_grow (&collect_obstack, "'\\''", 4);
4665 obstack_grow (&collect_obstack, q, strlen (q));
4666 obstack_grow (&collect_obstack, "'", 1);
4669 obstack_grow (&collect_obstack, "\0", 1);
4670 xputenv (XOBFINISH (&collect_obstack, char *));
4673 /* Process a spec string, accumulating and running commands. */
4675 /* These variables describe the input file name.
4676 input_file_number is the index on outfiles of this file,
4677 so that the output file name can be stored for later use by %o.
4678 input_basename is the start of the part of the input file
4679 sans all directory names, and basename_length is the number
4680 of characters starting there excluding the suffix .c or whatever. */
4682 static const char *input_filename;
4683 static int input_file_number;
4684 size_t input_filename_length;
4685 static int basename_length;
4686 static int suffixed_basename_length;
4687 static const char *input_basename;
4688 static const char *input_suffix;
4689 #ifndef HOST_LACKS_INODE_NUMBERS
4690 static struct stat input_stat;
4692 static int input_stat_set;
4694 /* The compiler used to process the current input file. */
4695 static struct compiler *input_file_compiler;
4697 /* These are variables used within do_spec and do_spec_1. */
4699 /* Nonzero if an arg has been started and not yet terminated
4700 (with space, tab or newline). */
4701 static int arg_going;
4703 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4704 is a temporary file name. */
4705 static int delete_this_arg;
4707 /* Nonzero means %w has been seen; the next arg to be terminated
4708 is the output file name of this compilation. */
4709 static int this_is_output_file;
4711 /* Nonzero means %s has been seen; the next arg to be terminated
4712 is the name of a library file and we should try the standard
4713 search dirs for it. */
4714 static int this_is_library_file;
4716 /* Nonzero means %T has been seen; the next arg to be terminated
4717 is the name of a linker script and we should try all of the
4718 standard search dirs for it. If it is found insert a --script
4719 command line switch and then substitute the full path in place,
4720 otherwise generate an error message. */
4721 static int this_is_linker_script;
4723 /* Nonzero means that the input of this command is coming from a pipe. */
4724 static int input_from_pipe;
4726 /* Nonnull means substitute this for any suffix when outputting a switches
4728 static const char *suffix_subst;
4730 /* If there is an argument being accumulated, terminate it and store it. */
4733 end_going_arg (void)
4739 obstack_1grow (&obstack, 0);
4740 string = XOBFINISH (&obstack, const char *);
4741 if (this_is_library_file)
4742 string = find_file (string);
4743 if (this_is_linker_script)
4745 char * full_script_path = find_a_file (&startfile_prefixes, string, R_OK, true);
4747 if (full_script_path == NULL)
4749 error (_("unable to locate default linker script '%s' in the library search paths"), string);
4750 /* Script was not found on search path. */
4753 store_arg ("--script", false, false);
4754 string = full_script_path;
4756 store_arg (string, delete_this_arg, this_is_output_file);
4757 if (this_is_output_file)
4758 outfiles[input_file_number] = string;
4764 /* Parse the WRAPPER string which is a comma separated list of the command line
4765 and insert them into the beginning of argbuf. */
4768 insert_wrapper (const char *wrapper)
4772 char *buf = xstrdup (wrapper);
4781 while ((p = strchr (p, ',')) != NULL);
4783 if (argbuf_index + n >= argbuf_length)
4785 argbuf_length = argbuf_length * 2;
4786 while (argbuf_length < argbuf_index + n)
4788 argbuf = XRESIZEVEC (const char *, argbuf, argbuf_length);
4790 for (i = argbuf_index - 1; i >= 0; i--)
4791 argbuf[i + n] = argbuf[i];
4804 while ((p = strchr (p, ',')) != NULL);
4805 gcc_assert (i == n);
4809 /* Process the spec SPEC and run the commands specified therein.
4810 Returns 0 if the spec is successfully processed; -1 if failed. */
4813 do_spec (const char *spec)
4817 value = do_spec_2 (spec);
4819 /* Force out any unfinished command.
4820 If -pipe, this forces out the last command if it ended in `|'. */
4823 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4826 set_collect_gcc_options ();
4828 if (argbuf_index > 0)
4836 do_spec_2 (const char *spec)
4842 delete_this_arg = 0;
4843 this_is_output_file = 0;
4844 this_is_library_file = 0;
4845 this_is_linker_script = 0;
4846 input_from_pipe = 0;
4847 suffix_subst = NULL;
4849 result = do_spec_1 (spec, 0, NULL);
4857 /* Process the given spec string and add any new options to the end
4858 of the switches/n_switches array. */
4861 do_option_spec (const char *name, const char *spec)
4863 unsigned int i, value_count, value_len;
4864 const char *p, *q, *value;
4865 char *tmp_spec, *tmp_spec_p;
4867 if (configure_default_options[0].name == NULL)
4870 for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
4871 if (strcmp (configure_default_options[i].name, name) == 0)
4873 if (i == ARRAY_SIZE (configure_default_options))
4876 value = configure_default_options[i].value;
4877 value_len = strlen (value);
4879 /* Compute the size of the final spec. */
4882 while ((p = strstr (p, "%(VALUE)")) != NULL)
4888 /* Replace each %(VALUE) by the specified value. */
4889 tmp_spec = (char *) alloca (strlen (spec) + 1
4890 + value_count * (value_len - strlen ("%(VALUE)")));
4891 tmp_spec_p = tmp_spec;
4893 while ((p = strstr (q, "%(VALUE)")) != NULL)
4895 memcpy (tmp_spec_p, q, p - q);
4896 tmp_spec_p = tmp_spec_p + (p - q);
4897 memcpy (tmp_spec_p, value, value_len);
4898 tmp_spec_p += value_len;
4899 q = p + strlen ("%(VALUE)");
4901 strcpy (tmp_spec_p, q);
4903 do_self_spec (tmp_spec);
4906 /* Process the given spec string and add any new options to the end
4907 of the switches/n_switches array. */
4910 do_self_spec (const char *spec)
4913 do_spec_1 (" ", 0, NULL);
4915 if (argbuf_index > 0)
4919 switches = XRESIZEVEC (struct switchstr, switches,
4920 n_switches + argbuf_index + 1);
4922 for (i = 0; i < argbuf_index; i++)
4924 struct switchstr *sw;
4925 const char *p = argbuf[i];
4928 /* Each switch should start with '-'. */
4930 fatal ("switch '%s' does not start with '-'", argbuf[i]);
4935 sw = &switches[n_switches++];
4941 /* Deal with option arguments in separate argv elements. */
4942 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4943 || WORD_SWITCH_TAKES_ARG (p))
4946 int n_args = WORD_SWITCH_TAKES_ARG (p);
4950 /* Count only the option arguments in separate argv elements. */
4951 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4953 if (i + n_args >= argbuf_index)
4954 fatal ("argument to '-%s' is missing", p);
4956 = XNEWVEC (const char *, n_args + 1);
4958 sw->args[j++] = argbuf[++i];
4959 /* Null-terminate the vector. */
4962 else if (strchr (switches_need_spaces, c))
4964 /* On some systems, ld cannot handle some options without
4965 a space. So split the option from its argument. */
4966 char *part1 = XNEWVEC (char, 2);
4971 sw->args = XNEWVEC (const char *, 2);
4972 sw->args[0] = xstrdup (p+1);
4979 switches[n_switches].part1 = 0;
4983 /* Callback for processing %D and %I specs. */
4985 struct spec_path_info {
4990 bool separate_options;
4994 spec_path (char *path, void *data)
4996 struct spec_path_info *info = (struct spec_path_info *) data;
5000 if (info->omit_relative && !IS_ABSOLUTE_PATH (path))
5003 if (info->append_len != 0)
5005 len = strlen (path);
5006 memcpy (path + len, info->append, info->append_len + 1);
5009 if (!is_directory (path, true))
5012 do_spec_1 (info->option, 1, NULL);
5013 if (info->separate_options)
5014 do_spec_1 (" ", 0, NULL);
5016 if (info->append_len == 0)
5018 len = strlen (path);
5019 save = path[len - 1];
5020 if (IS_DIR_SEPARATOR (path[len - 1]))
5021 path[len - 1] = '\0';
5024 do_spec_1 (path, 1, NULL);
5025 do_spec_1 (" ", 0, NULL);
5027 /* Must not damage the original path. */
5028 if (info->append_len == 0)
5029 path[len - 1] = save;
5034 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
5038 create_at_file (char **argv)
5040 char *temp_file = make_temp_file ("");
5041 char *at_argument = concat ("@", temp_file, NULL);
5042 FILE *f = fopen (temp_file, "w");
5046 fatal ("could not open temporary response file %s",
5049 status = writeargv (argv, f);
5052 fatal ("could not write to temporary response file %s",
5055 status = fclose (f);
5058 fatal ("could not close temporary response file %s",
5061 store_arg (at_argument, 0, 0);
5063 record_temp_file (temp_file, !save_temps_flag, !save_temps_flag);
5066 /* True if we should compile INFILE. */
5069 compile_input_file_p (struct infile *infile)
5071 if ((!infile->language) || (infile->language[0] != '*'))
5072 if (infile->incompiler == input_file_compiler)
5077 /* Process the sub-spec SPEC as a portion of a larger spec.
5078 This is like processing a whole spec except that we do
5079 not initialize at the beginning and we do not supply a
5080 newline by default at the end.
5081 INSWITCH nonzero means don't process %-sequences in SPEC;
5082 in this case, % is treated as an ordinary character.
5083 This is used while substituting switches.
5084 INSWITCH nonzero also causes SPC not to terminate an argument.
5086 Value is zero unless a line was finished
5087 and the command on that line reported an error. */
5090 do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
5092 const char *p = spec;
5098 /* If substituting a switch, treat all chars like letters.
5099 Otherwise, NL, SPC, TAB and % are special. */
5100 switch (inswitch ? 'a' : c)
5105 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
5107 /* A `|' before the newline means use a pipe here,
5108 but only if -pipe was specified.
5109 Otherwise, execute now and don't pass the `|' as an arg. */
5112 input_from_pipe = 1;
5119 set_collect_gcc_options ();
5121 if (argbuf_index > 0)
5127 /* Reinitialize for a new command, and for a new argument. */
5130 delete_this_arg = 0;
5131 this_is_output_file = 0;
5132 this_is_library_file = 0;
5133 this_is_linker_script = 0;
5134 input_from_pipe = 0;
5141 obstack_1grow (&obstack, c);
5149 /* Reinitialize for a new argument. */
5150 delete_this_arg = 0;
5151 this_is_output_file = 0;
5152 this_is_library_file = 0;
5153 this_is_linker_script = 0;
5160 fatal ("spec '%s' invalid", spec);
5163 if (save_temps_length)
5164 obstack_grow (&obstack, save_temps_prefix, save_temps_length);
5166 obstack_grow (&obstack, input_basename, basename_length);
5167 if (compare_debug < 0)
5168 obstack_grow (&obstack, ".gk", 3);
5173 if (save_temps_length)
5174 obstack_grow (&obstack, save_temps_prefix, save_temps_length);
5176 obstack_grow (&obstack, input_basename, suffixed_basename_length);
5177 if (compare_debug < 0)
5178 obstack_grow (&obstack, ".gk", 3);
5183 delete_this_arg = 2;
5186 /* Dump out the directories specified with LIBRARY_PATH,
5187 followed by the absolute directories
5188 that we search for startfiles. */
5191 struct spec_path_info info;
5194 info.append_len = 0;
5195 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5196 /* Used on systems which record the specified -L dirs
5197 and use them to search for dynamic linking.
5198 Relative directories always come from -B,
5199 and it is better not to use them for searching
5200 at run time. In particular, stage1 loses. */
5201 info.omit_relative = true;
5203 info.omit_relative = false;
5205 info.separate_options = false;
5207 for_each_path (&startfile_prefixes, true, 0, spec_path, &info);
5212 /* %efoo means report an error with `foo' as error message
5213 and don't execute any more commands for this file. */
5217 while (*p != 0 && *p != '\n')
5219 buf = (char *) alloca (p - q + 1);
5220 strncpy (buf, q, p - q);
5227 /* %nfoo means report a notice with `foo' on stderr. */
5231 while (*p != 0 && *p != '\n')
5233 buf = (char *) alloca (p - q + 1);
5234 strncpy (buf, q, p - q);
5236 notice ("%s\n", buf);
5246 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5247 defined, and it is not a directory, and it is
5248 writable, use it. Otherwise, treat this like any
5249 other temporary file. */
5251 if ((!save_temps_flag)
5252 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
5253 && (access (HOST_BIT_BUCKET, W_OK) == 0))
5255 obstack_grow (&obstack, HOST_BIT_BUCKET,
5256 strlen (HOST_BIT_BUCKET));
5257 delete_this_arg = 0;
5262 goto create_temp_file;
5266 obstack_1grow (&obstack, '-');
5267 delete_this_arg = 0;
5270 /* consume suffix */
5271 while (*p == '.' || ISALNUM ((unsigned char) *p))
5273 if (p[0] == '%' && p[1] == 'O')
5278 goto create_temp_file;
5282 /* consume suffix */
5283 while (*p == '.' || ISALNUM ((unsigned char) *p))
5285 if (p[0] == '%' && p[1] == 'O')
5290 goto create_temp_file;
5296 struct temp_name *t;
5298 const char *suffix = p;
5299 char *saved_suffix = NULL;
5301 while (*p == '.' || ISALNUM ((unsigned char) *p))
5303 suffix_length = p - suffix;
5304 if (p[0] == '%' && p[1] == 'O')
5307 /* We don't support extra suffix characters after %O. */
5308 if (*p == '.' || ISALNUM ((unsigned char) *p))
5309 fatal ("spec '%s' has invalid '%%0%c'", spec, *p);
5310 if (suffix_length == 0)
5311 suffix = TARGET_OBJECT_SUFFIX;
5315 = XNEWVEC (char, suffix_length
5316 + strlen (TARGET_OBJECT_SUFFIX));
5317 strncpy (saved_suffix, suffix, suffix_length);
5318 strcpy (saved_suffix + suffix_length,
5319 TARGET_OBJECT_SUFFIX);
5321 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
5324 if (compare_debug < 0)
5326 suffix = concat (".gk", suffix, NULL);
5330 /* If -save-temps=obj and -o were specified, use that for the
5332 if (save_temps_length)
5335 temp_filename_length
5336 = save_temps_length + suffix_length + 1;
5337 tmp = (char *) alloca (temp_filename_length);
5338 memcpy (tmp, save_temps_prefix, save_temps_length);
5339 memcpy (tmp + save_temps_length, suffix, suffix_length);
5340 tmp[save_temps_length + suffix_length] = '\0';
5341 temp_filename = save_string (tmp,
5342 temp_filename_length + 1);
5343 obstack_grow (&obstack, temp_filename,
5344 temp_filename_length);
5346 delete_this_arg = 0;
5350 /* If the input_filename has the same suffix specified
5351 for the %g, %u, or %U, and -save-temps is specified,
5352 we could end up using that file as an intermediate
5353 thus clobbering the user's source file (.e.g.,
5354 gcc -save-temps foo.s would clobber foo.s with the
5355 output of cpp0). So check for this condition and
5356 generate a temp file as the intermediate. */
5358 if (save_temps_flag)
5361 temp_filename_length = basename_length + suffix_length + 1;
5362 tmp = (char *) alloca (temp_filename_length);
5363 memcpy (tmp, input_basename, basename_length);
5364 memcpy (tmp + basename_length, suffix, suffix_length);
5365 tmp[basename_length + suffix_length] = '\0';
5366 temp_filename = tmp;
5368 if (strcmp (temp_filename, input_filename) != 0)
5370 #ifndef HOST_LACKS_INODE_NUMBERS
5371 struct stat st_temp;
5373 /* Note, set_input() resets input_stat_set to 0. */
5374 if (input_stat_set == 0)
5376 input_stat_set = stat (input_filename, &input_stat);
5377 if (input_stat_set >= 0)
5381 /* If we have the stat for the input_filename
5382 and we can do the stat for the temp_filename
5383 then the they could still refer to the same
5384 file if st_dev/st_ino's are the same. */
5385 if (input_stat_set != 1
5386 || stat (temp_filename, &st_temp) < 0
5387 || input_stat.st_dev != st_temp.st_dev
5388 || input_stat.st_ino != st_temp.st_ino)
5390 /* Just compare canonical pathnames. */
5391 char* input_realname = lrealpath (input_filename);
5392 char* temp_realname = lrealpath (temp_filename);
5393 bool files_differ = strcmp (input_realname, temp_realname);
5394 free (input_realname);
5395 free (temp_realname);
5399 temp_filename = save_string (temp_filename,
5400 temp_filename_length + 1);
5401 obstack_grow (&obstack, temp_filename,
5402 temp_filename_length);
5404 delete_this_arg = 0;
5410 /* See if we already have an association of %g/%u/%U and
5412 for (t = temp_names; t; t = t->next)
5413 if (t->length == suffix_length
5414 && strncmp (t->suffix, suffix, suffix_length) == 0
5415 && t->unique == (c == 'u' || c == 'U' || c == 'j'))
5418 /* Make a new association if needed. %u and %j
5420 if (t == 0 || c == 'u' || c == 'j')
5424 t = XNEW (struct temp_name);
5425 t->next = temp_names;
5428 t->length = suffix_length;
5431 t->suffix = saved_suffix;
5432 saved_suffix = NULL;
5435 t->suffix = save_string (suffix, suffix_length);
5436 t->unique = (c == 'u' || c == 'U' || c == 'j');
5437 temp_filename = make_temp_file (t->suffix);
5438 temp_filename_length = strlen (temp_filename);
5439 t->filename = temp_filename;
5440 t->filename_length = temp_filename_length;
5444 free (saved_suffix);
5446 obstack_grow (&obstack, t->filename, t->filename_length);
5447 delete_this_arg = 1;
5455 if (at_file_supplied)
5457 /* We are going to expand `%i' to `@FILE', where FILE
5458 is a newly-created temporary filename. The filenames
5459 that would usually be expanded in place of %o will be
5460 written to the temporary file. */
5465 for (i = 0; i < n_infiles; i++)
5466 if (compile_input_file_p (&infiles[i]))
5469 argv = (char **) alloca (sizeof (char *) * (n_files + 1));
5471 /* Copy the strings over. */
5472 for (i = 0, j = 0; i < n_infiles; i++)
5473 if (compile_input_file_p (&infiles[i]))
5475 argv[j] = CONST_CAST (char *, infiles[i].name);
5476 infiles[i].compiled = true;
5481 create_at_file (argv);
5484 for (i = 0; (int) i < n_infiles; i++)
5485 if (compile_input_file_p (&infiles[i]))
5487 store_arg (infiles[i].name, 0, 0);
5488 infiles[i].compiled = true;
5493 obstack_grow (&obstack, input_filename, input_filename_length);
5500 struct spec_path_info info;
5504 do_spec_1 ("-imultilib", 1, NULL);
5505 /* Make this a separate argument. */
5506 do_spec_1 (" ", 0, NULL);
5507 do_spec_1 (multilib_dir, 1, NULL);
5508 do_spec_1 (" ", 0, NULL);
5511 if (gcc_exec_prefix)
5513 do_spec_1 ("-iprefix", 1, NULL);
5514 /* Make this a separate argument. */
5515 do_spec_1 (" ", 0, NULL);
5516 do_spec_1 (gcc_exec_prefix, 1, NULL);
5517 do_spec_1 (" ", 0, NULL);
5520 if (target_system_root_changed ||
5521 (target_system_root && target_sysroot_hdrs_suffix))
5523 do_spec_1 ("-isysroot", 1, NULL);
5524 /* Make this a separate argument. */
5525 do_spec_1 (" ", 0, NULL);
5526 do_spec_1 (target_system_root, 1, NULL);
5527 if (target_sysroot_hdrs_suffix)
5528 do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
5529 do_spec_1 (" ", 0, NULL);
5532 info.option = "-isystem";
5533 info.append = "include";
5534 info.append_len = strlen (info.append);
5535 info.omit_relative = false;
5536 info.separate_options = true;
5538 for_each_path (&include_prefixes, false, info.append_len,
5541 info.append = "include-fixed";
5542 if (*sysroot_hdrs_suffix_spec)
5543 info.append = concat (info.append, dir_separator_str,
5544 multilib_dir, NULL);
5545 info.append_len = strlen (info.append);
5546 for_each_path (&include_prefixes, false, info.append_len,
5553 int max = n_infiles;
5554 max += lang_specific_extra_outfiles;
5556 if (HAVE_GNU_LD && at_file_supplied)
5558 /* We are going to expand `%o' to `@FILE', where FILE
5559 is a newly-created temporary filename. The filenames
5560 that would usually be expanded in place of %o will be
5561 written to the temporary file. */
5566 /* Convert OUTFILES into a form suitable for writeargv. */
5568 /* Determine how many are non-NULL. */
5569 for (n_files = 0, i = 0; i < max; i++)
5570 n_files += outfiles[i] != NULL;
5572 argv = (char **) alloca (sizeof (char *) * (n_files + 1));
5574 /* Copy the strings over. */
5575 for (i = 0, j = 0; i < max; i++)
5578 argv[j] = CONST_CAST (char *, outfiles[i]);
5583 create_at_file (argv);
5586 for (i = 0; i < max; i++)
5588 store_arg (outfiles[i], 0, 0);
5593 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
5598 this_is_library_file = 1;
5602 this_is_linker_script = 1;
5606 outfiles[input_file_number] = NULL;
5610 this_is_output_file = 1;
5615 int cur_index = argbuf_index;
5616 /* Handle the {...} following the %W. */
5618 fatal ("spec '%s' has invalid '%%W%c", spec, *p);
5619 p = handle_braces (p + 1);
5623 /* If any args were output, mark the last one for deletion
5625 if (argbuf_index != cur_index)
5626 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
5630 /* %x{OPTION} records OPTION for %X to output. */
5636 /* Skip past the option value and make a copy. */
5638 fatal ("spec '%s' has invalid '%%x%c'", spec, *p);
5641 string = save_string (p1 + 1, p - p1 - 2);
5643 /* See if we already recorded this option. */
5644 for (i = 0; i < n_linker_options; i++)
5645 if (! strcmp (string, linker_options[i]))
5651 /* This option is new; add it. */
5652 add_linker_option (string, strlen (string));
5656 /* Dump out the options accumulated previously using %x. */
5658 for (i = 0; i < n_linker_options; i++)
5660 do_spec_1 (linker_options[i], 1, NULL);
5661 /* Make each accumulated option a separate argument. */
5662 do_spec_1 (" ", 0, NULL);
5666 /* Dump out the options accumulated previously using -Wa,. */
5668 for (i = 0; i < n_assembler_options; i++)
5670 do_spec_1 (assembler_options[i], 1, NULL);
5671 /* Make each accumulated option a separate argument. */
5672 do_spec_1 (" ", 0, NULL);
5676 /* Dump out the options accumulated previously using -Wp,. */
5678 for (i = 0; i < n_preprocessor_options; i++)
5680 do_spec_1 (preprocessor_options[i], 1, NULL);
5681 /* Make each accumulated option a separate argument. */
5682 do_spec_1 (" ", 0, NULL);
5686 /* Here are digits and numbers that just process
5687 a certain constant string as a spec. */
5690 value = do_spec_1 (cc1_spec, 0, NULL);
5696 value = do_spec_1 (cc1plus_spec, 0, NULL);
5702 value = do_spec_1 (asm_spec, 0, NULL);
5708 value = do_spec_1 (asm_final_spec, 0, NULL);
5715 const char *const spec
5716 = (input_file_compiler->cpp_spec
5717 ? input_file_compiler->cpp_spec
5719 value = do_spec_1 (spec, 0, NULL);
5726 value = do_spec_1 (endfile_spec, 0, NULL);
5732 value = do_spec_1 (link_spec, 0, NULL);
5738 value = do_spec_1 (lib_spec, 0, NULL);
5744 value = do_spec_1 (libgcc_spec, 0, NULL);
5750 /* We assume there is a directory
5751 separator at the end of this string. */
5752 if (target_system_root)
5754 obstack_grow (&obstack, target_system_root,
5755 strlen (target_system_root));
5756 if (target_sysroot_suffix)
5757 obstack_grow (&obstack, target_sysroot_suffix,
5758 strlen (target_sysroot_suffix));
5763 value = do_spec_1 (startfile_spec, 0, NULL);
5768 /* Here we define characters other than letters and digits. */
5771 p = handle_braces (p);
5777 p = handle_spec_function (p);
5783 obstack_1grow (&obstack, '%');
5790 while (p[len] && p[len] != ' ' && p[len] != '%')
5792 suffix_subst = save_string (p - 1, len + 1);
5797 /* Henceforth ignore the option(s) matching the pattern
5802 int have_wildcard = 0;
5805 while (p[len] && p[len] != ' ' && p[len] != '\t')
5808 if (p[len-1] == '*')
5811 for (i = 0; i < n_switches; i++)
5812 if (!strncmp (switches[i].part1, p, len - have_wildcard)
5813 && (have_wildcard || switches[i].part1[len] == '\0'))
5815 switches[i].live_cond |= SWITCH_IGNORE;
5816 switches[i].validated = 1;
5824 if (soft_matched_part)
5826 do_spec_1 (soft_matched_part, 1, NULL);
5827 do_spec_1 (" ", 0, NULL);
5830 /* Catch the case where a spec string contains something like
5831 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5832 hand side of the :. */
5833 error ("spec failure: '%%*' has not been initialized by pattern match");
5836 /* Process a string found as the value of a spec given by name.
5837 This feature allows individual machine descriptions
5838 to add and use their own specs.
5839 %[...] modifies -D options the way %P does;
5840 %(...) uses the spec unmodified. */
5842 error ("warning: use of obsolete %%[ operator in specs");
5845 const char *name = p;
5846 struct spec_list *sl;
5849 /* The string after the S/P is the name of a spec that is to be
5851 while (*p && *p != ')' && *p != ']')
5854 /* See if it's in the list. */
5855 for (len = p - name, sl = specs; sl; sl = sl->next)
5856 if (sl->name_len == len && !strncmp (sl->name, name, len))
5858 name = *(sl->ptr_spec);
5860 notice ("Processing spec %c%s%c, which is '%s'\n",
5861 c, sl->name, (c == '(') ? ')' : ']', name);
5870 value = do_spec_1 (name, 0, NULL);
5876 char *x = (char *) alloca (strlen (name) * 2 + 1);
5878 const char *y = name;
5881 /* Copy all of NAME into BUF, but put __ after
5882 every -D and at the end of each arg. */
5885 if (! strncmp (y, "-D", 2))
5896 && (*y == ' ' || *y == '\t' || *y == '='
5897 || *y == '}' || *y == 0))
5910 value = do_spec_1 (buf, 0, NULL);
5916 /* Discard the closing paren or bracket. */
5923 error ("spec failure: unrecognized spec option '%c'", c);
5929 /* Backslash: treat next character as ordinary. */
5934 /* Ordinary character: put it into the current argument. */
5935 obstack_1grow (&obstack, c);
5939 /* End of string. If we are processing a spec function, we need to
5940 end any pending argument. */
5941 if (processing_spec_function)
5947 /* Look up a spec function. */
5949 static const struct spec_function *
5950 lookup_spec_function (const char *name)
5952 const struct spec_function *sf;
5954 for (sf = static_spec_functions; sf->name != NULL; sf++)
5955 if (strcmp (sf->name, name) == 0)
5961 /* Evaluate a spec function. */
5964 eval_spec_function (const char *func, const char *args)
5966 const struct spec_function *sf;
5967 const char *funcval;
5969 /* Saved spec processing context. */
5970 int save_argbuf_index;
5971 int save_argbuf_length;
5972 const char **save_argbuf;
5975 int save_delete_this_arg;
5976 int save_this_is_output_file;
5977 int save_this_is_library_file;
5978 int save_input_from_pipe;
5979 int save_this_is_linker_script;
5980 const char *save_suffix_subst;
5983 sf = lookup_spec_function (func);
5985 fatal ("unknown spec function '%s'", func);
5987 /* Push the spec processing context. */
5988 save_argbuf_index = argbuf_index;
5989 save_argbuf_length = argbuf_length;
5990 save_argbuf = argbuf;
5992 save_arg_going = arg_going;
5993 save_delete_this_arg = delete_this_arg;
5994 save_this_is_output_file = this_is_output_file;
5995 save_this_is_library_file = this_is_library_file;
5996 save_this_is_linker_script = this_is_linker_script;
5997 save_input_from_pipe = input_from_pipe;
5998 save_suffix_subst = suffix_subst;
6000 /* Create a new spec processing context, and build the function
6004 if (do_spec_2 (args) < 0)
6005 fatal ("error in args to spec function '%s'", func);
6007 /* argbuf_index is an index for the next argument to be inserted, and
6008 so contains the count of the args already inserted. */
6010 funcval = (*sf->func) (argbuf_index, argbuf);
6012 /* Pop the spec processing context. */
6013 argbuf_index = save_argbuf_index;
6014 argbuf_length = save_argbuf_length;
6016 argbuf = save_argbuf;
6018 arg_going = save_arg_going;
6019 delete_this_arg = save_delete_this_arg;
6020 this_is_output_file = save_this_is_output_file;
6021 this_is_library_file = save_this_is_library_file;
6022 this_is_linker_script = save_this_is_linker_script;
6023 input_from_pipe = save_input_from_pipe;
6024 suffix_subst = save_suffix_subst;
6029 /* Handle a spec function call of the form:
6033 ARGS is processed as a spec in a separate context and split into an
6034 argument vector in the normal fashion. The function returns a string
6035 containing a spec which we then process in the caller's context, or
6036 NULL if no processing is required. */
6039 handle_spec_function (const char *p)
6042 const char *endp, *funcval;
6045 processing_spec_function++;
6047 /* Get the function name. */
6048 for (endp = p; *endp != '\0'; endp++)
6050 if (*endp == '(') /* ) */
6052 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6053 if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
6054 fatal ("malformed spec function name");
6056 if (*endp != '(') /* ) */
6057 fatal ("no arguments for spec function");
6058 func = save_string (p, endp - p);
6061 /* Get the arguments. */
6062 for (count = 0; *endp != '\0'; endp++)
6071 else if (*endp == '(') /* ) */
6076 fatal ("malformed spec function arguments");
6077 args = save_string (p, endp - p);
6080 /* p now points to just past the end of the spec function expression. */
6082 funcval = eval_spec_function (func, args);
6083 if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
6089 processing_spec_function--;
6094 /* Inline subroutine of handle_braces. Returns true if the current
6095 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6097 input_suffix_matches (const char *atom, const char *end_atom)
6099 return (input_suffix
6100 && !strncmp (input_suffix, atom, end_atom - atom)
6101 && input_suffix[end_atom - atom] == '\0');
6104 /* Subroutine of handle_braces. Returns true if the current
6105 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6107 input_spec_matches (const char *atom, const char *end_atom)
6109 return (input_file_compiler
6110 && input_file_compiler->suffix
6111 && input_file_compiler->suffix[0] != '\0'
6112 && !strncmp (input_file_compiler->suffix + 1, atom,
6114 && input_file_compiler->suffix[end_atom - atom + 1] == '\0');
6117 /* Subroutine of handle_braces. Returns true if a switch
6118 matching the atom bracketed by ATOM and END_ATOM appeared on the
6121 switch_matches (const char *atom, const char *end_atom, int starred)
6124 int len = end_atom - atom;
6125 int plen = starred ? len : -1;
6127 for (i = 0; i < n_switches; i++)
6128 if (!strncmp (switches[i].part1, atom, len)
6129 && (starred || switches[i].part1[len] == '\0')
6130 && check_live_switch (i, plen))
6136 /* Inline subroutine of handle_braces. Mark all of the switches which
6137 match ATOM (extends to END_ATOM; STARRED indicates whether there
6138 was a star after the atom) for later processing. */
6140 mark_matching_switches (const char *atom, const char *end_atom, int starred)
6143 int len = end_atom - atom;
6144 int plen = starred ? len : -1;
6146 for (i = 0; i < n_switches; i++)
6147 if (!strncmp (switches[i].part1, atom, len)
6148 && (starred || switches[i].part1[len] == '\0')
6149 && check_live_switch (i, plen))
6150 switches[i].ordering = 1;
6153 /* Inline subroutine of handle_braces. Process all the currently
6154 marked switches through give_switch, and clear the marks. */
6156 process_marked_switches (void)
6160 for (i = 0; i < n_switches; i++)
6161 if (switches[i].ordering == 1)
6163 switches[i].ordering = 0;
6168 /* Handle a %{ ... } construct. P points just inside the leading {.
6169 Returns a pointer one past the end of the brace block, or 0
6170 if we call do_spec_1 and that returns -1. */
6173 handle_braces (const char *p)
6175 const char *atom, *end_atom;
6176 const char *d_atom = NULL, *d_end_atom = NULL;
6177 const char *orig = p;
6185 bool a_must_be_last = false;
6186 bool ordered_set = false;
6187 bool disjunct_set = false;
6188 bool disj_matched = false;
6189 bool disj_starred = true;
6190 bool n_way_choice = false;
6191 bool n_way_matched = false;
6193 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6200 /* Scan one "atom" (S in the description above of %{}, possibly
6201 with '!', '.', '@', ',', or '*' modifiers). */
6203 a_is_suffix = false;
6204 a_is_starred = false;
6205 a_is_negated = false;
6206 a_is_spectype = false;
6210 p++, a_is_negated = true;
6214 p++, a_is_suffix = true;
6216 p++, a_is_spectype = true;
6219 while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '='
6220 || *p == ',' || *p == '.' || *p == '@')
6225 p++, a_is_starred = 1;
6231 /* Substitute the switch(es) indicated by the current atom. */
6233 if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
6234 || a_is_spectype || atom == end_atom)
6237 mark_matching_switches (atom, end_atom, a_is_starred);
6240 process_marked_switches ();
6244 /* Substitute some text if the current atom appears as a switch
6246 disjunct_set = true;
6250 if (atom == end_atom)
6252 if (!n_way_choice || disj_matched || *p == '|'
6253 || a_is_negated || a_is_suffix || a_is_spectype
6257 /* An empty term may appear as the last choice of an
6258 N-way choice set; it means "otherwise". */
6259 a_must_be_last = true;
6260 disj_matched = !n_way_matched;
6261 disj_starred = false;
6265 if ((a_is_suffix || a_is_spectype) && a_is_starred)
6269 disj_starred = false;
6271 /* Don't bother testing this atom if we already have a
6273 if (!disj_matched && !n_way_matched)
6276 a_matched = input_suffix_matches (atom, end_atom);
6277 else if (a_is_spectype)
6278 a_matched = input_spec_matches (atom, end_atom);
6280 a_matched = switch_matches (atom, end_atom, a_is_starred);
6282 if (a_matched != a_is_negated)
6284 disj_matched = true;
6286 d_end_atom = end_atom;
6293 /* Found the body, that is, the text to substitute if the
6294 current disjunction matches. */
6295 p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
6296 disj_matched && !n_way_matched);
6300 /* If we have an N-way choice, reset state for the next
6304 n_way_choice = true;
6305 n_way_matched |= disj_matched;
6306 disj_matched = false;
6307 disj_starred = true;
6308 d_atom = d_end_atom = NULL;
6317 while (*p++ != '}');
6322 fatal ("braced spec '%s' is invalid at '%c'", orig, *p);
6327 /* Subroutine of handle_braces. Scan and process a brace substitution body
6328 (X in the description of %{} syntax). P points one past the colon;
6329 ATOM and END_ATOM bracket the first atom which was found to be true
6330 (present) in the current disjunction; STARRED indicates whether all
6331 the atoms in the current disjunction were starred (for syntax validation);
6332 MATCHED indicates whether the disjunction matched or not, and therefore
6333 whether or not the body is to be processed through do_spec_1 or just
6334 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6338 process_brace_body (const char *p, const char *atom, const char *end_atom,
6339 int starred, int matched)
6341 const char *body, *end_body;
6342 unsigned int nesting_level;
6343 bool have_subst = false;
6345 /* Locate the closing } or ;, honoring nested braces.
6346 Trim trailing whitespace. */
6355 if (!--nesting_level)
6358 else if (*p == ';' && nesting_level == 1)
6360 else if (*p == '%' && p[1] == '*' && nesting_level == 1)
6362 else if (*p == '\0')
6368 while (end_body[-1] == ' ' || end_body[-1] == '\t')
6371 if (have_subst && !starred)
6376 /* Copy the substitution body to permanent storage and execute it.
6377 If have_subst is false, this is a simple matter of running the
6378 body through do_spec_1... */
6379 char *string = save_string (body, end_body - body);
6382 if (do_spec_1 (string, 0, NULL) < 0)
6387 /* ... but if have_subst is true, we have to process the
6388 body once for each matching switch, with %* set to the
6389 variant part of the switch. */
6390 unsigned int hard_match_len = end_atom - atom;
6393 for (i = 0; i < n_switches; i++)
6394 if (!strncmp (switches[i].part1, atom, hard_match_len)
6395 && check_live_switch (i, hard_match_len))
6397 if (do_spec_1 (string, 0,
6398 &switches[i].part1[hard_match_len]) < 0)
6400 /* Pass any arguments this switch has. */
6402 suffix_subst = NULL;
6410 fatal ("braced spec body '%s' is invalid", body);
6413 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6414 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6415 spec, or -1 if either exact match or %* is used.
6417 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
6418 whose value does not begin with "no-" is obsoleted by the same value
6419 with the "no-", similarly for a switch with the "no-" prefix. */
6422 check_live_switch (int switchnum, int prefix_length)
6424 const char *name = switches[switchnum].part1;
6427 /* If we already processed this switch and determined if it was
6428 live or not, return our past determination. */
6429 if (switches[switchnum].live_cond != 0)
6430 return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0
6431 && (switches[switchnum].live_cond & SWITCH_FALSE) == 0
6432 && (switches[switchnum].live_cond & SWITCH_IGNORE) == 0);
6434 /* In the common case of {<at-most-one-letter>*}, a negating
6435 switch would always match, so ignore that case. We will just
6436 send the conflicting switches to the compiler phase. */
6437 if (prefix_length >= 0 && prefix_length <= 1)
6440 /* Now search for duplicate in a manner that depends on the name. */
6444 for (i = switchnum + 1; i < n_switches; i++)
6445 if (switches[i].part1[0] == 'O')
6447 switches[switchnum].validated = 1;
6448 switches[switchnum].live_cond = SWITCH_FALSE;
6453 case 'W': case 'f': case 'm':
6454 if (! strncmp (name + 1, "no-", 3))
6456 /* We have Xno-YYY, search for XYYY. */
6457 for (i = switchnum + 1; i < n_switches; i++)
6458 if (switches[i].part1[0] == name[0]
6459 && ! strcmp (&switches[i].part1[1], &name[4]))
6461 switches[switchnum].validated = 1;
6462 switches[switchnum].live_cond = SWITCH_FALSE;
6468 /* We have XYYY, search for Xno-YYY. */
6469 for (i = switchnum + 1; i < n_switches; i++)
6470 if (switches[i].part1[0] == name[0]
6471 && switches[i].part1[1] == 'n'
6472 && switches[i].part1[2] == 'o'
6473 && switches[i].part1[3] == '-'
6474 && !strcmp (&switches[i].part1[4], &name[1]))
6476 switches[switchnum].validated = 1;
6477 switches[switchnum].live_cond = SWITCH_FALSE;
6484 /* Otherwise the switch is live. */
6485 switches[switchnum].live_cond |= SWITCH_LIVE;
6489 /* Pass a switch to the current accumulating command
6490 in the same form that we received it.
6491 SWITCHNUM identifies the switch; it is an index into
6492 the vector of switches gcc received, which is `switches'.
6493 This cannot fail since it never finishes a command line.
6495 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6498 give_switch (int switchnum, int omit_first_word)
6500 if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0)
6503 if (!omit_first_word)
6505 do_spec_1 ("-", 0, NULL);
6506 do_spec_1 (switches[switchnum].part1, 1, NULL);
6509 if (switches[switchnum].args != 0)
6512 for (p = switches[switchnum].args; *p; p++)
6514 const char *arg = *p;
6516 do_spec_1 (" ", 0, NULL);
6519 unsigned length = strlen (arg);
6522 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
6523 if (arg[length] == '.')
6525 (CONST_CAST(char *, arg))[length] = 0;
6529 do_spec_1 (arg, 1, NULL);
6531 (CONST_CAST(char *, arg))[length] = '.';
6532 do_spec_1 (suffix_subst, 1, NULL);
6535 do_spec_1 (arg, 1, NULL);
6539 do_spec_1 (" ", 0, NULL);
6540 switches[switchnum].validated = 1;
6543 /* Search for a file named NAME trying various prefixes including the
6544 user's -B prefix and some standard ones.
6545 Return the absolute file name found. If nothing is found, return NAME. */
6548 find_file (const char *name)
6550 char *newname = find_a_file (&startfile_prefixes, name, R_OK, true);
6551 return newname ? newname : name;
6554 /* Determine whether a directory exists. If LINKER, return 0 for
6555 certain fixed names not needed by the linker. */
6558 is_directory (const char *path1, bool linker)
6565 /* Ensure the string ends with "/.". The resulting path will be a
6566 directory even if the given path is a symbolic link. */
6567 len1 = strlen (path1);
6568 path = (char *) alloca (3 + len1);
6569 memcpy (path, path1, len1);
6571 if (!IS_DIR_SEPARATOR (cp[-1]))
6572 *cp++ = DIR_SEPARATOR;
6576 /* Exclude directories that the linker is known to search. */
6578 && IS_DIR_SEPARATOR (path[0])
6580 && strncmp (path + 1, "lib", 3) == 0)
6582 && strncmp (path + 1, "usr", 3) == 0
6583 && IS_DIR_SEPARATOR (path[4])
6584 && strncmp (path + 5, "lib", 3) == 0)))
6587 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
6590 /* Set up the various global variables to indicate that we're processing
6591 the input file named FILENAME. */
6594 set_input (const char *filename)
6598 input_filename = filename;
6599 input_filename_length = strlen (input_filename);
6600 input_basename = lbasename (input_filename);
6602 /* Find a suffix starting with the last period,
6603 and set basename_length to exclude that suffix. */
6604 basename_length = strlen (input_basename);
6605 suffixed_basename_length = basename_length;
6606 p = input_basename + basename_length;
6607 while (p != input_basename && *p != '.')
6609 if (*p == '.' && p != input_basename)
6611 basename_length = p - input_basename;
6612 input_suffix = p + 1;
6617 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6618 we will need to do a stat on the input_filename. The
6619 INPUT_STAT_SET signals that the stat is needed. */
6623 /* On fatal signals, delete all the temporary files. */
6626 fatal_error (int signum)
6628 signal (signum, SIG_DFL);
6629 delete_failure_queue ();
6630 delete_temp_files ();
6631 /* Get the same signal again, this time not handled,
6632 so its normal effect occurs. */
6633 kill (getpid (), signum);
6636 /* Compare the contents of the two files named CMPFILE[0] and
6637 CMPFILE[1]. Return zero if they're identical, nonzero
6641 compare_files (char *cmpfile[])
6644 FILE *temp[2] = { NULL, NULL };
6650 void *map[2] = { NULL, NULL };
6652 for (i = 0; i < 2; i++)
6656 if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode))
6658 error ("%s: could not determine length of compare-debug file %s",
6659 input_filename, cmpfile[i]);
6664 length[i] = st.st_size;
6667 if (!ret && length[0] != length[1])
6669 error ("%s: -fcompare-debug failure (length)", input_filename);
6674 for (i = 0; i < 2; i++)
6676 int fd = open (cmpfile[i], O_RDONLY);
6679 error ("%s: could not open compare-debug file %s",
6680 input_filename, cmpfile[i]);
6685 map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0);
6688 if (map[i] == (void *) MAP_FAILED)
6697 if (memcmp (map[0], map[1], length[0]) != 0)
6699 error ("%s: -fcompare-debug failure", input_filename);
6704 for (i = 0; i < 2; i++)
6706 munmap ((caddr_t) map[i], length[i]);
6715 for (i = 0; i < 2; i++)
6717 temp[i] = fopen (cmpfile[i], "r");
6720 error ("%s: could not open compare-debug file %s",
6721 input_filename, cmpfile[i]);
6727 if (!ret && temp[0] && temp[1])
6731 c0 = fgetc (temp[0]);
6732 c1 = fgetc (temp[1]);
6736 error ("%s: -fcompare-debug failure",
6746 for (i = 1; i >= 0; i--)
6755 extern int main (int, char **);
6758 main (int argc, char **argv)
6762 int linker_was_run = 0;
6763 int lang_n_infiles = 0;
6764 int num_linker_inputs = 0;
6765 char *explicit_link_files;
6768 struct user_specs *uptr;
6769 char **old_argv = argv;
6771 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6772 on ?: in file-scope variable initializations. */
6773 asm_debug = ASM_DEBUG_SPEC;
6775 p = argv[0] + strlen (argv[0]);
6776 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
6780 xmalloc_set_program_name (programname);
6782 expandargv (&argc, &argv);
6784 /* Determine if any expansions were made. */
6785 if (argv != old_argv)
6786 at_file_supplied = true;
6788 prune_options (&argc, &argv);
6790 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6791 /* Perform host dependent initialization when needed. */
6792 GCC_DRIVER_HOST_INITIALIZATION;
6795 /* Unlock the stdio streams. */
6796 unlock_std_streams ();
6798 gcc_init_libintl ();
6800 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
6801 signal (SIGINT, fatal_error);
6803 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
6804 signal (SIGHUP, fatal_error);
6806 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
6807 signal (SIGTERM, fatal_error);
6809 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
6810 signal (SIGPIPE, fatal_error);
6813 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6814 receive the signal. A different setting is inheritable */
6815 signal (SIGCHLD, SIG_DFL);
6818 /* Allocate the argument vector. */
6821 obstack_init (&obstack);
6823 /* Build multilib_select, et. al from the separate lines that make up each
6824 multilib selection. */
6826 const char *const *q = multilib_raw;
6829 obstack_init (&multilib_obstack);
6830 while ((p = *q++) != (char *) 0)
6831 obstack_grow (&multilib_obstack, p, strlen (p));
6833 obstack_1grow (&multilib_obstack, 0);
6834 multilib_select = XOBFINISH (&multilib_obstack, const char *);
6836 q = multilib_matches_raw;
6837 while ((p = *q++) != (char *) 0)
6838 obstack_grow (&multilib_obstack, p, strlen (p));
6840 obstack_1grow (&multilib_obstack, 0);
6841 multilib_matches = XOBFINISH (&multilib_obstack, const char *);
6843 q = multilib_exclusions_raw;
6844 while ((p = *q++) != (char *) 0)
6845 obstack_grow (&multilib_obstack, p, strlen (p));
6847 obstack_1grow (&multilib_obstack, 0);
6848 multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
6851 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
6854 obstack_1grow (&multilib_obstack, ' ');
6855 obstack_grow (&multilib_obstack,
6856 multilib_defaults_raw[i],
6857 strlen (multilib_defaults_raw[i]));
6861 obstack_1grow (&multilib_obstack, 0);
6862 multilib_defaults = XOBFINISH (&multilib_obstack, const char *);
6865 #ifdef INIT_ENVIRONMENT
6866 /* Set up any other necessary machine specific environment variables. */
6867 xputenv (INIT_ENVIRONMENT);
6870 /* Make a table of what switches there are (switches, n_switches).
6871 Make a table of specified input files (infiles, n_infiles).
6872 Decode switches that are handled locally. */
6874 process_command (argc, CONST_CAST2 (const char **, char **, argv));
6876 /* Initialize the vector of specs to just the default.
6877 This means one element containing 0s, as a terminator. */
6879 compilers = XNEWVAR (struct compiler, sizeof default_compilers);
6880 memcpy (compilers, default_compilers, sizeof default_compilers);
6881 n_compilers = n_default_compilers;
6883 /* Read specs from a file if there is one. */
6885 machine_suffix = concat (spec_machine, dir_separator_str,
6886 spec_version, dir_separator_str, NULL);
6887 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
6889 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true);
6890 /* Read the specs file unless it is a default one. */
6891 if (specs_file != 0 && strcmp (specs_file, "specs"))
6892 read_specs (specs_file, TRUE);
6896 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6897 for any override of as, ld and libraries. */
6898 specs_file = (char *) alloca (strlen (standard_exec_prefix)
6899 + strlen (just_machine_suffix) + sizeof ("specs"));
6901 strcpy (specs_file, standard_exec_prefix);
6902 strcat (specs_file, just_machine_suffix);
6903 strcat (specs_file, "specs");
6904 if (access (specs_file, R_OK) == 0)
6905 read_specs (specs_file, TRUE);
6907 /* Process any configure-time defaults specified for the command line
6908 options, via OPTION_DEFAULT_SPECS. */
6909 for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
6910 do_option_spec (option_default_specs[i].name,
6911 option_default_specs[i].spec);
6913 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6914 of the command line. */
6916 for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
6917 do_self_spec (driver_self_specs[i]);
6921 enum save_temps save;
6923 if (!compare_debug_second)
6925 n_switches_debug_check[1] = n_switches;
6926 switches_debug_check[1] = XDUPVEC (struct switchstr, switches,
6929 do_self_spec ("%:compare-debug-self-opt()");
6930 n_switches_debug_check[0] = n_switches;
6931 switches_debug_check[0] = switches;
6933 n_switches = n_switches_debug_check[1];
6934 switches = switches_debug_check[1];
6937 /* Avoid crash when computing %j in this early. */
6938 save = save_temps_flag;
6939 save_temps_flag = SAVE_TEMPS_NONE;
6941 compare_debug = -compare_debug;
6942 do_self_spec ("%:compare-debug-self-opt()");
6944 save_temps_flag = save;
6946 if (!compare_debug_second)
6948 n_switches_debug_check[1] = n_switches;
6949 switches_debug_check[1] = switches;
6950 compare_debug = -compare_debug;
6951 n_switches = n_switches_debug_check[0];
6952 switches = switches_debug_check[0];
6956 /* If not cross-compiling, look for executables in the standard
6958 if (*cross_compile == '0')
6960 if (*md_exec_prefix)
6962 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
6963 PREFIX_PRIORITY_LAST, 0, 0);
6967 /* Process sysroot_suffix_spec. */
6968 if (*sysroot_suffix_spec != 0
6969 && do_spec_2 (sysroot_suffix_spec) == 0)
6971 if (argbuf_index > 1)
6972 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6973 else if (argbuf_index == 1)
6974 target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
6977 #ifdef HAVE_LD_SYSROOT
6978 /* Pass the --sysroot option to the linker, if it supports that. If
6979 there is a sysroot_suffix_spec, it has already been processed by
6980 this point, so target_system_root really is the system root we
6982 if (target_system_root)
6984 obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6985 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
6986 set_spec ("link", XOBFINISH (&obstack, const char *));
6990 /* Process sysroot_hdrs_suffix_spec. */
6991 if (*sysroot_hdrs_suffix_spec != 0
6992 && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
6994 if (argbuf_index > 1)
6995 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6996 else if (argbuf_index == 1)
6997 target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
7000 /* Look for startfiles in the standard places. */
7001 if (*startfile_prefix_spec != 0
7002 && do_spec_2 (startfile_prefix_spec) == 0
7003 && do_spec_1 (" ", 0, NULL) == 0)
7006 for (ndx = 0; ndx < argbuf_index; ndx++)
7007 add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS",
7008 PREFIX_PRIORITY_LAST, 0, 1);
7010 /* We should eventually get rid of all these and stick to
7011 startfile_prefix_spec exclusively. */
7012 else if (*cross_compile == '0' || target_system_root)
7014 if (*md_startfile_prefix)
7015 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
7016 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
7018 if (*md_startfile_prefix_1)
7019 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
7020 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
7022 /* If standard_startfile_prefix is relative, base it on
7023 standard_exec_prefix. This lets us move the installed tree
7024 as a unit. If GCC_EXEC_PREFIX is defined, base
7025 standard_startfile_prefix on that as well.
7027 If the prefix is relative, only search it for native compilers;
7028 otherwise we will search a directory containing host libraries. */
7029 if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
7030 add_sysrooted_prefix (&startfile_prefixes,
7031 standard_startfile_prefix, "BINUTILS",
7032 PREFIX_PRIORITY_LAST, 0, 1);
7033 else if (*cross_compile == '0')
7035 add_prefix (&startfile_prefixes,
7036 concat (gcc_exec_prefix
7037 ? gcc_exec_prefix : standard_exec_prefix,
7039 standard_startfile_prefix, NULL),
7040 NULL, PREFIX_PRIORITY_LAST, 0, 1);
7043 /* Sysrooted prefixes are relocated because target_system_root is
7044 also relocated by gcc_exec_prefix. */
7045 if (*standard_startfile_prefix_1)
7046 add_sysrooted_prefix (&startfile_prefixes,
7047 standard_startfile_prefix_1, "BINUTILS",
7048 PREFIX_PRIORITY_LAST, 0, 1);
7049 if (*standard_startfile_prefix_2)
7050 add_sysrooted_prefix (&startfile_prefixes,
7051 standard_startfile_prefix_2, "BINUTILS",
7052 PREFIX_PRIORITY_LAST, 0, 1);
7055 /* Process any user specified specs in the order given on the command
7057 for (uptr = user_specs_head; uptr; uptr = uptr->next)
7059 char *filename = find_a_file (&startfile_prefixes, uptr->filename,
7061 read_specs (filename ? filename : uptr->filename, FALSE);
7064 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7065 if (gcc_exec_prefix)
7066 gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
7067 spec_version, dir_separator_str, NULL);
7069 /* Now we have the specs.
7070 Set the `valid' bits for switches that match anything in any spec. */
7072 validate_all_switches ();
7074 /* Now that we have the switches and the specs, set
7075 the subdirectory based on the options. */
7076 set_multilib_dir ();
7078 /* Set up to remember the pathname of gcc and any options
7079 needed for collect. We use argv[0] instead of programname because
7080 we need the complete pathname. */
7081 obstack_init (&collect_obstack);
7082 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7083 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
7084 xputenv (XOBFINISH (&collect_obstack, char *));
7086 /* Set up to remember the pathname of the lto wrapper. */
7088 lto_wrapper_spec = find_a_file (&exec_prefixes, "lto-wrapper", X_OK, false);
7089 if (lto_wrapper_spec)
7091 obstack_init (&collect_obstack);
7092 obstack_grow (&collect_obstack, "COLLECT_LTO_WRAPPER=",
7093 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7094 obstack_grow (&collect_obstack, lto_wrapper_spec,
7095 strlen (lto_wrapper_spec) + 1);
7096 xputenv (XOBFINISH (&collect_obstack, char *));
7099 /* Warn about any switches that no pass was interested in. */
7101 for (i = 0; (int) i < n_switches; i++)
7102 if (! switches[i].validated)
7103 error ("unrecognized option '-%s'", switches[i].part1);
7105 /* Obey some of the options. */
7107 if (print_search_dirs)
7109 printf (_("install: %s%s\n"),
7110 gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
7111 gcc_exec_prefix ? "" : machine_suffix);
7112 printf (_("programs: %s\n"),
7113 build_search_list (&exec_prefixes, "", false, false));
7114 printf (_("libraries: %s\n"),
7115 build_search_list (&startfile_prefixes, "", false, true));
7119 if (print_file_name)
7121 printf ("%s\n", find_file (print_file_name));
7125 if (print_prog_name)
7127 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0);
7128 printf ("%s\n", (newname ? newname : print_prog_name));
7132 if (print_multi_lib)
7134 print_multilib_info ();
7138 if (print_multi_directory)
7140 if (multilib_dir == NULL)
7143 printf ("%s\n", multilib_dir);
7149 if (target_system_root)
7151 if (target_sysroot_suffix)
7152 printf ("%s%s\n", target_system_root, target_sysroot_suffix);
7154 printf ("%s\n", target_system_root);
7159 if (print_multi_os_directory)
7161 if (multilib_os_dir == NULL)
7164 printf ("%s\n", multilib_os_dir);
7168 if (print_sysroot_headers_suffix)
7170 if (*sysroot_hdrs_suffix_spec)
7172 printf("%s\n", (target_sysroot_hdrs_suffix
7173 ? target_sysroot_hdrs_suffix
7178 /* The error status indicates that only one set of fixed
7179 headers should be built. */
7180 fatal ("not configured with sysroot headers suffix");
7183 if (print_help_list)
7189 printf (_("\nFor bug reporting instructions, please see:\n"));
7190 printf ("%s.\n", bug_report_url);
7195 /* We do not exit here. Instead we have created a fake input file
7196 called 'help-dummy' which needs to be compiled, and we pass this
7197 on the various sub-processes, along with the --help switch.
7198 Ensure their output appears after ours. */
7199 fputc ('\n', stdout);
7205 printf (_("%s %s%s\n"), programname, pkgversion_string,
7207 printf ("Copyright %s 2009 Free Software Foundation, Inc.\n",
7209 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7210 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7215 /* We do not exit here. We use the same mechanism of --help to print
7216 the version of the sub-processes. */
7217 fputc ('\n', stdout);
7226 notice ("Target: %s\n", spec_machine);
7227 notice ("Configured with: %s\n", configuration_arguments);
7229 #ifdef THREAD_MODEL_SPEC
7230 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7231 but there's no point in doing all this processing just to get
7232 thread_model back. */
7233 obstack_init (&obstack);
7234 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
7235 obstack_1grow (&obstack, '\0');
7236 thrmod = XOBFINISH (&obstack, const char *);
7238 thrmod = thread_model;
7241 notice ("Thread model: %s\n", thrmod);
7243 /* compiler_version is truncated at the first space when initialized
7244 from version string, so truncate version_string at the first space
7245 before comparing. */
7246 for (n = 0; version_string[n]; n++)
7247 if (version_string[n] == ' ')
7250 if (! strncmp (version_string, compiler_version, n)
7251 && compiler_version[n] == 0)
7252 notice ("gcc version %s %s\n", version_string, pkgversion_string);
7254 notice ("gcc driver version %s %sexecuting gcc version %s\n",
7255 version_string, pkgversion_string, compiler_version);
7261 if (n_infiles == added_libraries)
7262 fatal ("no input files");
7264 /* Make a place to record the compiler output file names
7265 that correspond to the input files. */
7268 i += lang_specific_extra_outfiles;
7269 outfiles = XCNEWVEC (const char *, i);
7271 /* Record which files were specified explicitly as link input. */
7273 explicit_link_files = XCNEWVEC (char, n_infiles);
7276 combine_inputs = true;
7278 combine_inputs = false;
7280 for (i = 0; (int) i < n_infiles; i++)
7282 const char *name = infiles[i].name;
7283 struct compiler *compiler = lookup_compiler (name,
7285 infiles[i].language);
7287 if (compiler && !(compiler->combinable))
7288 combine_inputs = false;
7290 if (lang_n_infiles > 0 && compiler != input_file_compiler
7291 && infiles[i].language && infiles[i].language[0] != '*')
7292 infiles[i].incompiler = compiler;
7296 input_file_compiler = compiler;
7297 infiles[i].incompiler = compiler;
7301 /* Since there is no compiler for this input file, assume it is a
7303 explicit_link_files[i] = 1;
7304 infiles[i].incompiler = NULL;
7306 infiles[i].compiled = false;
7307 infiles[i].preprocessed = false;
7310 if (!combine_inputs && have_c && have_o && lang_n_infiles > 1)
7311 fatal ("cannot specify -o with -c or -S with multiple files");
7313 if (combine_flag && save_temps_flag)
7315 bool save_combine_inputs = combine_inputs;
7316 /* Must do a separate pre-processing pass for C & Objective-C files, to
7317 obtain individual .i files. */
7319 combine_inputs = false;
7320 for (i = 0; (int) i < n_infiles; i++)
7322 int this_file_error = 0;
7324 input_file_number = i;
7325 set_input (infiles[i].name);
7326 if (infiles[i].incompiler
7327 && (infiles[i].incompiler)->needs_preprocessing)
7328 input_file_compiler = infiles[i].incompiler;
7332 if (input_file_compiler)
7334 if (input_file_compiler->spec[0] == '#')
7336 error ("%s: %s compiler not installed on this system",
7337 input_filename, &input_file_compiler->spec[1]);
7338 this_file_error = 1;
7342 value = do_spec (input_file_compiler->spec);
7343 infiles[i].preprocessed = true;
7344 if (!have_o_argbuf_index)
7345 fatal ("spec '%s' is invalid", input_file_compiler->spec);
7346 infiles[i].name = argbuf[have_o_argbuf_index];
7347 infiles[i].incompiler
7348 = lookup_compiler (infiles[i].name,
7349 strlen (infiles[i].name),
7350 infiles[i].language);
7353 this_file_error = 1;
7357 if (this_file_error)
7359 delete_failure_queue ();
7363 clear_failure_queue ();
7365 combine_inputs = save_combine_inputs;
7368 for (i = 0; (int) i < n_infiles; i++)
7370 int this_file_error = 0;
7372 /* Tell do_spec what to substitute for %i. */
7374 input_file_number = i;
7375 set_input (infiles[i].name);
7377 if (infiles[i].compiled)
7380 /* Use the same thing in %o, unless cp->spec says otherwise. */
7382 outfiles[i] = input_filename;
7384 /* Figure out which compiler from the file's suffix. */
7386 if (! combine_inputs)
7388 = lookup_compiler (infiles[i].name, input_filename_length,
7389 infiles[i].language);
7391 input_file_compiler = infiles[i].incompiler;
7393 if (input_file_compiler)
7395 /* Ok, we found an applicable compiler. Run its spec. */
7397 if (input_file_compiler->spec[0] == '#')
7399 error ("%s: %s compiler not installed on this system",
7400 input_filename, &input_file_compiler->spec[1]);
7401 this_file_error = 1;
7407 if (debug_check_temp_file[0])
7408 free (debug_check_temp_file[0]);
7409 debug_check_temp_file[0] = NULL;
7411 if (debug_check_temp_file[1])
7412 free (debug_check_temp_file[1]);
7413 debug_check_temp_file[1] = NULL;
7416 value = do_spec (input_file_compiler->spec);
7417 infiles[i].compiled = true;
7419 this_file_error = 1;
7420 else if (compare_debug && debug_check_temp_file[0])
7423 error ("Recompiling with -fcompare-debug");
7425 compare_debug = -compare_debug;
7426 n_switches = n_switches_debug_check[1];
7427 switches = switches_debug_check[1];
7429 value = do_spec (input_file_compiler->spec);
7431 compare_debug = -compare_debug;
7432 n_switches = n_switches_debug_check[0];
7433 switches = switches_debug_check[0];
7437 error ("during -fcompare-debug recompilation");
7438 this_file_error = 1;
7441 gcc_assert (debug_check_temp_file[1]
7442 && strcmp (debug_check_temp_file[0],
7443 debug_check_temp_file[1]));
7446 error ("Comparing final insns dumps");
7448 if (compare_files (debug_check_temp_file))
7449 this_file_error = 1;
7454 if (debug_check_temp_file[0])
7455 free (debug_check_temp_file[0]);
7456 debug_check_temp_file[0] = NULL;
7458 if (debug_check_temp_file[1])
7459 free (debug_check_temp_file[1]);
7460 debug_check_temp_file[1] = NULL;
7465 /* If this file's name does not contain a recognized suffix,
7466 record it as explicit linker input. */
7469 explicit_link_files[i] = 1;
7471 /* Clear the delete-on-failure queue, deleting the files in it
7472 if this compilation failed. */
7474 if (this_file_error)
7476 delete_failure_queue ();
7479 /* If this compilation succeeded, don't delete those files later. */
7480 clear_failure_queue ();
7483 /* Reset the input file name to the first compile/object file name, for use
7484 with %b in LINK_SPEC. We use the first input file that we can find
7485 a compiler to compile it instead of using infiles.language since for
7486 languages other than C we use aliases that we then lookup later. */
7491 for (i = 0; i < n_infiles ; i++)
7492 if (infiles[i].language && infiles[i].language[0] != '*')
7494 set_input (infiles[i].name);
7499 if (error_count == 0)
7501 /* Make sure INPUT_FILE_NUMBER points to first available open
7503 input_file_number = n_infiles;
7504 if (lang_specific_pre_link ())
7508 /* Determine if there are any linker input files. */
7509 num_linker_inputs = 0;
7510 for (i = 0; (int) i < n_infiles; i++)
7511 if (explicit_link_files[i] || outfiles[i] != NULL)
7512 num_linker_inputs++;
7514 /* Run ld to link all the compiler output files. */
7516 if (num_linker_inputs > 0 && error_count == 0 && print_subprocess_help < 2)
7518 int tmp = execution_count;
7519 const char *use_linker_plugin = "use-linker-plugin";
7521 /* We'll use ld if we can't find collect2. */
7522 if (! strcmp (linker_name_spec, "collect2"))
7524 char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
7526 linker_name_spec = "ld";
7529 if (switch_matches (use_linker_plugin,
7530 use_linker_plugin + strlen (use_linker_plugin), 0))
7532 linker_plugin_file_spec = find_a_file (&exec_prefixes,
7533 "liblto_plugin.so", X_OK,
7535 if (!linker_plugin_file_spec)
7536 fatal ("-use-linker-plugin, but liblto_plugin.so not found.");
7538 lto_libgcc_spec = find_a_file (&startfile_prefixes, "libgcc.a",
7540 if (!lto_libgcc_spec)
7541 fatal ("could not find libgcc.a.");
7543 lto_gcc_spec = argv[0];
7545 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7547 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false);
7548 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true);
7550 if (print_subprocess_help == 1)
7552 printf (_("\nLinker options\n==============\n\n"));
7553 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7554 " to the linker.\n\n"));
7557 value = do_spec (link_command_spec);
7560 linker_was_run = (tmp != execution_count);
7563 /* If options said don't run linker,
7564 complain about input files to be given to the linker. */
7566 if (! linker_was_run && error_count == 0)
7567 for (i = 0; (int) i < n_infiles; i++)
7568 if (explicit_link_files[i]
7569 && !(infiles[i].language && infiles[i].language[0] == '*'))
7570 error ("%s: linker input file unused because linking not done",
7573 /* Delete some or all of the temporary files we made. */
7576 delete_failure_queue ();
7577 delete_temp_files ();
7579 if (print_help_list)
7581 printf (("\nFor bug reporting instructions, please see:\n"));
7582 printf ("%s\n", bug_report_url);
7585 return (signal_count != 0 ? 2
7586 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
7590 /* Find the proper compilation spec for the file name NAME,
7591 whose length is LENGTH. LANGUAGE is the specified language,
7592 or 0 if this file is to be passed to the linker. */
7594 static struct compiler *
7595 lookup_compiler (const char *name, size_t length, const char *language)
7597 struct compiler *cp;
7599 /* If this was specified by the user to be a linker input, indicate that. */
7600 if (language != 0 && language[0] == '*')
7603 /* Otherwise, look for the language, if one is spec'd. */
7606 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7607 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
7610 error ("language %s not recognized", language);
7614 /* Look for a suffix. */
7615 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7617 if (/* The suffix `-' matches only the file name `-'. */
7618 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
7619 || (strlen (cp->suffix) < length
7620 /* See if the suffix matches the end of NAME. */
7621 && !strcmp (cp->suffix,
7622 name + length - strlen (cp->suffix))
7627 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7628 /* Look again, but case-insensitively this time. */
7630 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7632 if (/* The suffix `-' matches only the file name `-'. */
7633 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
7634 || (strlen (cp->suffix) < length
7635 /* See if the suffix matches the end of NAME. */
7636 && ((!strcmp (cp->suffix,
7637 name + length - strlen (cp->suffix))
7638 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7639 && !strcasecmp (cp->suffix,
7640 name + length - strlen (cp->suffix)))
7646 if (cp >= compilers)
7648 if (cp->spec[0] != '@')
7649 /* A non-alias entry: return it. */
7652 /* An alias entry maps a suffix to a language.
7653 Search for the language; pass 0 for NAME and LENGTH
7654 to avoid infinite recursion if language not found. */
7655 return lookup_compiler (NULL, 0, cp->spec + 1);
7661 save_string (const char *s, int len)
7663 char *result = XNEWVEC (char, len + 1);
7665 memcpy (result, s, len);
7671 pfatal_with_name (const char *name)
7673 perror_with_name (name);
7674 delete_temp_files ();
7679 perror_with_name (const char *name)
7681 error ("%s: %s", name, xstrerror (errno));
7684 /* Output an error message and exit. */
7687 fancy_abort (const char *file, int line, const char *func)
7689 fatal_ice ("internal gcc abort in %s, at %s:%d", func, file, line);
7692 /* Output an error message and exit. */
7695 fatal_ice (const char *cmsgid, ...)
7699 va_start (ap, cmsgid);
7701 fprintf (stderr, "%s: ", programname);
7702 vfprintf (stderr, _(cmsgid), ap);
7704 fprintf (stderr, "\n");
7705 delete_temp_files ();
7706 exit (pass_exit_codes ? ICE_EXIT_CODE : 1);
7710 fatal (const char *cmsgid, ...)
7714 va_start (ap, cmsgid);
7716 fprintf (stderr, "%s: ", programname);
7717 vfprintf (stderr, _(cmsgid), ap);
7719 fprintf (stderr, "\n");
7720 delete_temp_files ();
7724 /* The argument is actually c-format, not gcc-internal-format,
7725 but because functions with identical names are used through
7726 the rest of the compiler with gcc-internal-format, we just
7727 need to hope all users of these functions use the common
7728 subset between c-format and gcc-internal-format. */
7731 error (const char *gmsgid, ...)
7735 va_start (ap, gmsgid);
7736 fprintf (stderr, "%s: ", programname);
7737 vfprintf (stderr, _(gmsgid), ap);
7740 fprintf (stderr, "\n");
7744 notice (const char *cmsgid, ...)
7748 va_start (ap, cmsgid);
7749 vfprintf (stderr, _(cmsgid), ap);
7754 validate_switches_from_spec (const char *spec)
7756 const char *p = spec;
7759 if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{')))
7760 /* We have a switch spec. */
7761 p = validate_switches (p + 1);
7765 validate_all_switches (void)
7767 struct compiler *comp;
7768 struct spec_list *spec;
7770 for (comp = compilers; comp->spec; comp++)
7771 validate_switches_from_spec (comp->spec);
7773 /* Look through the linked list of specs read from the specs file. */
7774 for (spec = specs; spec; spec = spec->next)
7775 validate_switches_from_spec (*spec->ptr_spec);
7777 validate_switches_from_spec (link_command_spec);
7780 /* Look at the switch-name that comes after START
7781 and mark as valid all supplied switches that match it. */
7784 validate_switches (const char *start)
7786 const char *p = start;
7790 bool suffix = false;
7791 bool starred = false;
7793 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7802 if (*p == '.' || *p == ',')
7806 while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
7807 || *p == ',' || *p == '.' || *p == '@')
7812 starred = true, p++;
7818 /* Mark all matching switches as valid. */
7819 for (i = 0; i < n_switches; i++)
7820 if (!strncmp (switches[i].part1, atom, len)
7821 && (starred || switches[i].part1[len] == 0))
7822 switches[i].validated = 1;
7826 if (*p && (p[-1] == '|' || p[-1] == '&'))
7829 if (*p && p[-1] == ':')
7831 while (*p && *p != ';' && *p != '}')
7836 if (*p == '{' || *p == '<')
7837 p = validate_switches (p+1);
7838 else if (p[0] == 'W' && p[1] == '{')
7839 p = validate_switches (p+2);
7846 if (*p && p[-1] == ';')
7860 static struct mdswitchstr *mdswitches;
7861 static int n_mdswitches;
7863 /* Check whether a particular argument was used. The first time we
7864 canonicalize the switches to keep only the ones we care about. */
7867 used_arg (const char *p, int len)
7872 const char *replace;
7877 static struct mswitchstr *mswitches;
7878 static int n_mswitches;
7883 struct mswitchstr *matches;
7887 /* Break multilib_matches into the component strings of string
7888 and replacement string. */
7889 for (q = multilib_matches; *q != '\0'; q++)
7894 = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
7896 q = multilib_matches;
7905 fatal ("multilib spec '%s' is invalid", multilib_matches);
7909 matches[i].len = q - matches[i].str;
7911 matches[i].replace = ++q;
7912 while (*q != ';' && *q != '\0')
7915 goto invalid_matches;
7918 matches[i].rep_len = q - matches[i].replace;
7924 /* Now build a list of the replacement string for switches that we care
7925 about. Make sure we allocate at least one entry. This prevents
7926 xmalloc from calling fatal, and prevents us from re-executing this
7929 = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1));
7930 for (i = 0; i < n_switches; i++)
7931 if ((switches[i].live_cond & SWITCH_IGNORE) == 0)
7933 int xlen = strlen (switches[i].part1);
7934 for (j = 0; j < cnt; j++)
7935 if (xlen == matches[j].len
7936 && ! strncmp (switches[i].part1, matches[j].str, xlen))
7938 mswitches[n_mswitches].str = matches[j].replace;
7939 mswitches[n_mswitches].len = matches[j].rep_len;
7940 mswitches[n_mswitches].replace = (char *) 0;
7941 mswitches[n_mswitches].rep_len = 0;
7947 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7948 on the command line nor any options mutually incompatible with
7950 for (i = 0; i < n_mdswitches; i++)
7954 for (q = multilib_options; *q != '\0'; q++)
7960 while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
7961 || strchr (" /", q[mdswitches[i].len]) == NULL)
7963 while (*q != ' ' && *q != '/' && *q != '\0')
7970 if (*q != ' ' && *q != '\0')
7972 while (*r != ' ' && *r != '\0')
7975 while (*q != ' ' && *q != '/' && *q != '\0')
7978 if (used_arg (r, q - r))
7983 mswitches[n_mswitches].str = mdswitches[i].str;
7984 mswitches[n_mswitches].len = mdswitches[i].len;
7985 mswitches[n_mswitches].replace = (char *) 0;
7986 mswitches[n_mswitches].rep_len = 0;
7999 for (i = 0; i < n_mswitches; i++)
8000 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
8007 default_arg (const char *p, int len)
8011 for (i = 0; i < n_mdswitches; i++)
8012 if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
8018 /* Work out the subdirectory to use based on the options. The format of
8019 multilib_select is a list of elements. Each element is a subdirectory
8020 name followed by a list of options followed by a semicolon. The format
8021 of multilib_exclusions is the same, but without the preceding
8022 directory. First gcc will check the exclusions, if none of the options
8023 beginning with an exclamation point are present, and all of the other
8024 options are present, then we will ignore this completely. Passing
8025 that, gcc will consider each multilib_select in turn using the same
8026 rules for matching the options. If a match is found, that subdirectory
8030 set_multilib_dir (void)
8033 unsigned int this_path_len;
8034 const char *this_path, *this_arg;
8035 const char *start, *end;
8037 int ok, ndfltok, first;
8040 start = multilib_defaults;
8041 while (*start == ' ' || *start == '\t')
8043 while (*start != '\0')
8046 while (*start != ' ' && *start != '\t' && *start != '\0')
8048 while (*start == ' ' || *start == '\t')
8056 mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches);
8057 for (start = multilib_defaults; *start != '\0'; start = end + 1)
8059 while (*start == ' ' || *start == '\t')
8065 for (end = start + 1;
8066 *end != ' ' && *end != '\t' && *end != '\0'; end++)
8069 obstack_grow (&multilib_obstack, start, end - start);
8070 obstack_1grow (&multilib_obstack, 0);
8071 mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
8072 mdswitches[i++].len = end - start;
8079 p = multilib_exclusions;
8082 /* Ignore newlines. */
8089 /* Check the arguments. */
8096 fatal ("multilib exclusions '%s' is invalid",
8097 multilib_exclusions);
8107 while (*p != ' ' && *p != ';')
8110 goto invalid_exclusions;
8114 if (*this_arg != '!')
8122 ok = used_arg (this_arg, p - this_arg);
8137 p = multilib_select;
8140 /* Ignore newlines. */
8147 /* Get the initial path. */
8154 fatal ("multilib select '%s' is invalid",
8159 this_path_len = p - this_path;
8161 /* Check the arguments. */
8168 goto invalid_select;
8177 while (*p != ' ' && *p != ';')
8180 goto invalid_select;
8184 if (*this_arg != '!')
8192 /* If this is a default argument, we can just ignore it.
8193 This is true even if this_arg begins with '!'. Beginning
8194 with '!' does not mean that this argument is necessarily
8195 inappropriate for this library: it merely means that
8196 there is a more specific library which uses this
8197 argument. If this argument is a default, we need not
8198 consider that more specific library. */
8199 ok = used_arg (this_arg, p - this_arg);
8206 if (default_arg (this_arg, p - this_arg))
8215 if (this_path_len != 1
8216 || this_path[0] != '.')
8218 char *new_multilib_dir = XNEWVEC (char, this_path_len + 1);
8221 strncpy (new_multilib_dir, this_path, this_path_len);
8222 new_multilib_dir[this_path_len] = '\0';
8223 q = strchr (new_multilib_dir, ':');
8226 multilib_dir = new_multilib_dir;
8233 const char *q = this_path, *end = this_path + this_path_len;
8235 while (q < end && *q != ':')
8239 char *new_multilib_os_dir = XNEWVEC (char, end - q);
8240 memcpy (new_multilib_os_dir, q + 1, end - q - 1);
8241 new_multilib_os_dir[end - q - 1] = '\0';
8242 multilib_os_dir = new_multilib_os_dir;
8250 if (multilib_dir == NULL && multilib_os_dir != NULL
8251 && strcmp (multilib_os_dir, ".") == 0)
8253 free (CONST_CAST (char *, multilib_os_dir));
8254 multilib_os_dir = NULL;
8256 else if (multilib_dir != NULL && multilib_os_dir == NULL)
8257 multilib_os_dir = multilib_dir;
8260 /* Print out the multiple library subdirectory selection
8261 information. This prints out a series of lines. Each line looks
8262 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8263 required. Only the desired options are printed out, the negative
8264 matches. The options are print without a leading dash. There are
8265 no spaces to make it easy to use the information in the shell.
8266 Each subdirectory is printed only once. This assumes the ordering
8267 generated by the genmultilib script. Also, we leave out ones that match
8271 print_multilib_info (void)
8273 const char *p = multilib_select;
8274 const char *last_path = 0, *this_path;
8276 unsigned int last_path_len = 0;
8281 /* Ignore newlines. */
8288 /* Get the initial path. */
8295 fatal ("multilib select '%s' is invalid", multilib_select);
8301 /* When --disable-multilib was used but target defines
8302 MULTILIB_OSDIRNAMES, entries starting with .: are there just
8303 to find multilib_os_dir, so skip them from output. */
8304 if (this_path[0] == '.' && this_path[1] == ':')
8307 /* Check for matches with the multilib_exclusions. We don't bother
8308 with the '!' in either list. If any of the exclusion rules match
8309 all of its options with the select rule, we skip it. */
8311 const char *e = multilib_exclusions;
8312 const char *this_arg;
8317 /* Ignore newlines. */
8324 /* Check the arguments. */
8333 fatal ("multilib exclusion '%s' is invalid",
8334 multilib_exclusions);
8345 while (*e != ' ' && *e != ';')
8348 goto invalid_exclusion;
8356 int len = e - this_arg;
8359 goto invalid_select;
8363 while (*q != ' ' && *q != ';')
8366 goto invalid_select;
8370 if (! strncmp (arg, this_arg,
8371 (len < q - arg) ? q - arg : len)
8372 || default_arg (this_arg, e - this_arg))
8402 /* If this is a duplicate, skip it. */
8403 skip = (last_path != 0
8404 && (unsigned int) (p - this_path) == last_path_len
8405 && ! strncmp (last_path, this_path, last_path_len));
8407 last_path = this_path;
8408 last_path_len = p - this_path;
8411 /* If this directory requires any default arguments, we can skip
8412 it. We will already have printed a directory identical to
8413 this one which does not require that default argument. */
8424 goto invalid_select;
8431 while (*q != ' ' && *q != ';')
8434 goto invalid_select;
8439 && default_arg (arg, q - arg))
8454 for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
8465 goto invalid_select;
8473 use_arg = *p != '!';
8478 while (*p != ' ' && *p != ';')
8481 goto invalid_select;
8493 /* If there are extra options, print them now. */
8494 if (multilib_extra && *multilib_extra)
8496 int print_at = TRUE;
8499 for (q = multilib_extra; *q != '\0'; q++)
8520 /* getenv built-in spec function.
8522 Returns the value of the environment variable given by its first
8523 argument, concatenated with the second argument. If the
8524 environment variable is not defined, a fatal error is issued. */
8527 getenv_spec_function (int argc, const char **argv)
8537 value = getenv (argv[0]);
8539 fatal ("environment variable \"%s\" not defined", argv[0]);
8541 /* We have to escape every character of the environment variable so
8542 they are not interpreted as active spec characters. A
8543 particularly painful case is when we are reading a variable
8544 holding a windows path complete with \ separators. */
8545 len = strlen (value) * 2 + strlen (argv[1]) + 1;
8546 result = XNEWVAR (char, len);
8547 for (ptr = result; *value; ptr += 2)
8553 strcpy (ptr, argv[1]);
8558 /* if-exists built-in spec function.
8560 Checks to see if the file specified by the absolute pathname in
8561 ARGS exists. Returns that pathname if found.
8563 The usual use for this function is to check for a library file
8564 (whose name has been expanded with %s). */
8567 if_exists_spec_function (int argc, const char **argv)
8569 /* Must have only one argument. */
8570 if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
8576 /* if-exists-else built-in spec function.
8578 This is like if-exists, but takes an additional argument which
8579 is returned if the first argument does not exist. */
8582 if_exists_else_spec_function (int argc, const char **argv)
8584 /* Must have exactly two arguments. */
8588 if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
8594 /* replace-outfile built-in spec function.
8596 This looks for the first argument in the outfiles array's name and
8597 replaces it with the second argument. */
8600 replace_outfile_spec_function (int argc, const char **argv)
8603 /* Must have exactly two arguments. */
8607 for (i = 0; i < n_infiles; i++)
8609 if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
8610 outfiles[i] = xstrdup (argv[1]);
8615 /* Given two version numbers, compares the two numbers.
8616 A version number must match the regular expression
8617 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8620 compare_version_strings (const char *v1, const char *v2)
8625 if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8626 REG_EXTENDED | REG_NOSUB) != 0)
8628 rresult = regexec (&r, v1, 0, NULL, 0);
8629 if (rresult == REG_NOMATCH)
8630 fatal ("invalid version number `%s'", v1);
8631 else if (rresult != 0)
8633 rresult = regexec (&r, v2, 0, NULL, 0);
8634 if (rresult == REG_NOMATCH)
8635 fatal ("invalid version number `%s'", v2);
8636 else if (rresult != 0)
8639 return strverscmp (v1, v2);
8643 /* version_compare built-in spec function.
8645 This takes an argument of the following form:
8647 <comparison-op> <arg1> [<arg2>] <switch> <result>
8649 and produces "result" if the comparison evaluates to true,
8650 and nothing if it doesn't.
8652 The supported <comparison-op> values are:
8654 >= true if switch is a later (or same) version than arg1
8656 < true if switch is an earlier version than arg1
8658 >< true if switch is arg1 or later, and earlier than arg2
8659 <> true if switch is earlier than arg1 or is arg2 or later
8661 If the switch is not present, the condition is false unless
8662 the first character of the <comparison-op> is '!'.
8665 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8666 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8669 version_compare_spec_function (int argc, const char **argv)
8673 const char *switch_value = NULL;
8678 fatal ("too few arguments to %%:version-compare");
8679 if (argv[0][0] == '\0')
8681 if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
8683 if (argc != nargs + 3)
8684 fatal ("too many arguments to %%:version-compare");
8686 switch_len = strlen (argv[nargs + 1]);
8687 for (i = 0; i < n_switches; i++)
8688 if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
8689 && check_live_switch (i, switch_len))
8690 switch_value = switches[i].part1 + switch_len;
8692 if (switch_value == NULL)
8696 comp1 = compare_version_strings (switch_value, argv[1]);
8698 comp2 = compare_version_strings (switch_value, argv[2]);
8700 comp2 = -1; /* This value unused. */
8703 switch (argv[0][0] << 8 | argv[0][1])
8705 case '>' << 8 | '=':
8706 result = comp1 >= 0;
8708 case '!' << 8 | '<':
8709 result = comp1 >= 0 || switch_value == NULL;
8714 case '!' << 8 | '>':
8715 result = comp1 < 0 || switch_value == NULL;
8717 case '>' << 8 | '<':
8718 result = comp1 >= 0 && comp2 < 0;
8720 case '<' << 8 | '>':
8721 result = comp1 < 0 || comp2 >= 0;
8725 fatal ("unknown operator '%s' in %%:version-compare", argv[0]);
8730 return argv[nargs + 2];
8733 /* %:include builtin spec function. This differs from %include in that it
8734 can be nested inside a spec, and thus be conditionalized. It takes
8735 one argument, the filename, and looks for it in the startfile path.
8736 The result is always NULL, i.e. an empty expansion. */
8739 include_spec_function (int argc, const char **argv)
8746 file = find_a_file (&startfile_prefixes, argv[0], R_OK, true);
8747 read_specs (file ? file : argv[0], FALSE);
8752 /* %:print-asm-header spec function. Print a banner to say that the
8753 following output is from the assembler. */
8756 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED,
8757 const char **argv ATTRIBUTE_UNUSED)
8759 printf (_("Assembler options\n=================\n\n"));
8760 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8765 /* Compute a timestamp to initialize flag_random_seed. */
8768 get_local_tick (void)
8772 /* Get some more or less random data. */
8773 #ifdef HAVE_GETTIMEOFDAY
8777 gettimeofday (&tv, NULL);
8778 ret = tv.tv_sec * 1000 + tv.tv_usec / 1000;
8782 time_t now = time (NULL);
8784 if (now != (time_t)-1)
8785 ret = (unsigned) now;
8792 /* %:compare-debug-dump-opt spec function. Save the last argument,
8793 expected to be the last -fdump-final-insns option, or generate a
8797 compare_debug_dump_opt_spec_function (int arg,
8798 const char **argv ATTRIBUTE_UNUSED)
8803 static char random_seed[HOST_BITS_PER_WIDE_INT / 4 + 3];
8806 fatal ("too many arguments to %%:compare-debug-dump-opt");
8808 do_spec_2 ("%{fdump-final-insns=*:%*}");
8809 do_spec_1 (" ", 0, NULL);
8811 if (argbuf_index > 0 && strcmp (argv[argbuf_index - 1], "."))
8816 name = xstrdup (argv[argbuf_index - 1]);
8821 const char *ext = NULL;
8823 if (argbuf_index > 0)
8825 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8828 else if (!compare_debug)
8831 do_spec_2 ("%g.gkd");
8833 do_spec_1 (" ", 0, NULL);
8835 gcc_assert (argbuf_index > 0);
8837 name = concat (argbuf[argbuf_index - 1], ext, NULL);
8839 ret = concat ("-fdump-final-insns=", name, NULL);
8842 which = compare_debug < 0;
8843 debug_check_temp_file[which] = name;
8847 unsigned HOST_WIDE_INT value = get_local_tick () ^ getpid ();
8849 sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value);
8853 ret = concat ("%{!frandom-seed=*:-frandom-seed=", random_seed, "} ",
8862 static const char *debug_auxbase_opt;
8864 /* %:compare-debug-self-opt spec function. Expands to the options
8865 that are to be passed in the second compilation of
8869 compare_debug_self_opt_spec_function (int arg,
8870 const char **argv ATTRIBUTE_UNUSED)
8873 fatal ("too many arguments to %%:compare-debug-self-opt");
8875 if (compare_debug >= 0)
8878 do_spec_2 ("%{c|S:%{o*:%*}}");
8879 do_spec_1 (" ", 0, NULL);
8881 if (argbuf_index > 0)
8882 debug_auxbase_opt = concat ("-auxbase-strip ",
8883 argbuf[argbuf_index - 1],
8886 debug_auxbase_opt = NULL;
8889 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8890 %<fdump-final-insns=* -w -S -o %j \
8891 %{!fcompare-debug-second:-fcompare-debug-second} \
8892 ", compare_debug_opt, NULL);
8895 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8896 options that are to be passed in the second compilation of
8897 compare-debug. It expects, as an argument, the basename of the
8898 current input file name, with the .gk suffix appended to it. */
8901 compare_debug_auxbase_opt_spec_function (int arg,
8908 fatal ("too few arguments to %%:compare-debug-auxbase-opt");
8911 fatal ("too many arguments to %%:compare-debug-auxbase-opt");
8913 if (compare_debug >= 0)
8916 len = strlen (argv[0]);
8917 if (len < 3 || strcmp (argv[0] + len - 3, ".gk") != 0)
8918 fatal ("argument to %%:compare-debug-auxbase-opt does not end in .gk");
8920 if (debug_auxbase_opt)
8921 return debug_auxbase_opt;
8923 #define OPT "-auxbase "
8926 name = (char*) xmalloc (sizeof (OPT) + len);
8927 memcpy (name, OPT, sizeof (OPT) - 1);
8928 memcpy (name + sizeof (OPT) - 1, argv[0], len);
8929 name[sizeof (OPT) - 1 + len] = '\0';
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