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 %{fuse-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 %{static:-plugin-opt=-pass-through=-lc} \
779 %{O*:-plugin-opt=-O%*} \
780 %{w:-plugin-opt=-w} \
781 %{f*:-plugin-opt=-f%*} \
783 %{flto} %{fwhopr} %l " LINK_PIE_SPEC \
784 "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
785 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
786 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
787 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
788 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
789 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
790 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
793 #ifndef LINK_LIBGCC_SPEC
794 /* Generate -L options for startfile prefix list. */
795 # define LINK_LIBGCC_SPEC "%D"
798 #ifndef STARTFILE_PREFIX_SPEC
799 # define STARTFILE_PREFIX_SPEC ""
803 # define SYSROOT_SPEC "--sysroot=%R"
806 #ifndef SYSROOT_SUFFIX_SPEC
807 # define SYSROOT_SUFFIX_SPEC ""
810 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
811 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
814 static const char *asm_debug;
815 static const char *cpp_spec = CPP_SPEC;
816 static const char *cc1_spec = CC1_SPEC;
817 static const char *cc1plus_spec = CC1PLUS_SPEC;
818 static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
819 static const char *link_ssp_spec = LINK_SSP_SPEC;
820 static const char *asm_spec = ASM_SPEC;
821 static const char *asm_final_spec = ASM_FINAL_SPEC;
822 static const char *link_spec = LINK_SPEC;
823 static const char *lib_spec = LIB_SPEC;
824 static const char *mfwrap_spec = MFWRAP_SPEC;
825 static const char *mflib_spec = MFLIB_SPEC;
826 static const char *link_gomp_spec = "";
827 static const char *libgcc_spec = LIBGCC_SPEC;
828 static const char *endfile_spec = ENDFILE_SPEC;
829 static const char *startfile_spec = STARTFILE_SPEC;
830 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
831 static const char *linker_name_spec = LINKER_NAME;
832 static const char *linker_plugin_file_spec = "";
833 static const char *lto_wrapper_spec = "";
834 static const char *lto_gcc_spec = "";
835 static const char *lto_libgcc_spec = "";
836 static const char *link_command_spec = LINK_COMMAND_SPEC;
837 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
838 static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
839 static const char *sysroot_spec = SYSROOT_SPEC;
840 static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
841 static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
843 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
844 There should be no need to override these in target dependent files,
845 but we need to copy them to the specs file so that newer versions
846 of the GCC driver can correctly drive older tool chains with the
847 appropriate -B options. */
849 /* When cpplib handles traditional preprocessing, get rid of this, and
850 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
851 that we default the front end language better. */
852 static const char *trad_capable_cpp =
853 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
855 /* We don't wrap .d files in %W{} since a missing .d file, and
856 therefore no dependency entry, confuses make into thinking a .o
857 file that happens to exist is up-to-date. */
858 static const char *cpp_unique_options =
859 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
860 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
861 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
862 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
863 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
864 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
865 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
866 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
867 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
868 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
871 /* This contains cpp options which are common with cc1_options and are passed
872 only when preprocessing only to avoid duplication. We pass the cc1 spec
873 options to the preprocessor so that it the cc1 spec may manipulate
874 options used to set target flags. Those special target flags settings may
875 in turn cause preprocessor symbols to be defined specially. */
876 static const char *cpp_options =
877 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
878 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
879 %{undef} %{save-temps*:-fpch-preprocess}";
881 /* This contains cpp options which are not passed when the preprocessor
882 output will be used by another program. */
883 static const char *cpp_debug_options = "%{d*}";
885 /* NB: This is shared amongst all front-ends, except for Ada. */
886 static const char *cc1_options =
887 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
888 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
889 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
890 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
891 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
892 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
893 %{Qn:-fno-ident} %{--help:--help}\
894 %{--target-help:--target-help}\
895 %{--help=*:--help=%(VALUE)}\
896 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
897 %{fsyntax-only:-o %j} %{-param*}\
898 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
899 %{coverage:-fprofile-arcs -ftest-coverage}";
901 static const char *asm_options =
902 "%{--target-help:%:print-asm-header()} "
904 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
905 to the assembler equivalents. */
906 "%{v} %{w:-W} %{I*} "
908 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
910 static const char *invoke_as =
911 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
913 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
914 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
918 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
919 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
923 /* Some compilers have limits on line lengths, and the multilib_select
924 and/or multilib_matches strings can be very long, so we build them at
926 static struct obstack multilib_obstack;
927 static const char *multilib_select;
928 static const char *multilib_matches;
929 static const char *multilib_defaults;
930 static const char *multilib_exclusions;
932 /* Check whether a particular argument is a default argument. */
934 #ifndef MULTILIB_DEFAULTS
935 #define MULTILIB_DEFAULTS { "" }
938 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
940 #ifndef DRIVER_SELF_SPECS
941 #define DRIVER_SELF_SPECS ""
944 /* Adding -fopenmp should imply pthreads. This is particularly important
945 for targets that use different start files and suchlike. */
946 #ifndef GOMP_SELF_SPECS
947 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
950 static const char *const driver_self_specs[] = {
951 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
952 DRIVER_SELF_SPECS, GOMP_SELF_SPECS
955 #ifndef OPTION_DEFAULT_SPECS
956 #define OPTION_DEFAULT_SPECS { "", "" }
965 static const struct default_spec
966 option_default_specs[] = { OPTION_DEFAULT_SPECS };
970 struct user_specs *next;
971 const char *filename;
974 static struct user_specs *user_specs_head, *user_specs_tail;
976 #ifndef SWITCH_TAKES_ARG
977 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
980 #ifndef WORD_SWITCH_TAKES_ARG
981 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
984 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
985 /* This defines which switches stop a full compilation. */
986 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
987 ((CHAR) == 'c' || (CHAR) == 'S' || (CHAR) == 'E')
989 #ifndef SWITCH_CURTAILS_COMPILATION
990 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
991 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
995 /* Record the mapping from file suffixes for compilation specs. */
999 const char *suffix; /* Use this compiler for input files
1000 whose names end in this suffix. */
1002 const char *spec; /* To use this compiler, run this spec. */
1004 const char *cpp_spec; /* If non-NULL, substitute this spec
1005 for `%C', rather than the usual
1007 const int combinable; /* If nonzero, compiler can deal with
1008 multiple source files at once (IMA). */
1009 const int needs_preprocessing; /* If nonzero, source files need to
1010 be run through a preprocessor. */
1013 /* Pointer to a vector of `struct compiler' that gives the spec for
1014 compiling a file, based on its suffix.
1015 A file that does not end in any of these suffixes will be passed
1016 unchanged to the loader and nothing else will be done to it.
1018 An entry containing two 0s is used to terminate the vector.
1020 If multiple entries match a file, the last matching one is used. */
1022 static struct compiler *compilers;
1024 /* Number of entries in `compilers', not counting the null terminator. */
1026 static int n_compilers;
1028 /* The default list of file name suffixes and their compilation specs. */
1030 static const struct compiler default_compilers[] =
1032 /* Add lists of suffixes of known languages here. If those languages
1033 were not present when we built the driver, we will hit these copies
1034 and be given a more meaningful error than "file not used since
1035 linking is not done". */
1036 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1037 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1038 {".mii", "#Objective-C++", 0, 0, 0},
1039 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1040 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1041 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1042 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1043 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1044 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1045 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1046 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1047 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1048 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1049 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1050 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1051 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1052 {".r", "#Ratfor", 0, 0, 0},
1053 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1054 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1055 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1056 /* Next come the entries for C. */
1057 {".c", "@c", 0, 1, 1},
1059 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1060 external preprocessor if -save-temps is given. */
1061 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1063 %{traditional|ftraditional:\
1064 %eGNU C no longer supports -traditional without -E}\
1066 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1067 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1068 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1070 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1071 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1072 %{!fsyntax-only:%(invoke_as)}} \
1074 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1075 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i}}\
1076 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1077 cc1 %(cpp_unique_options) %(cc1_options)}}\
1078 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1080 "%{!E:%e-E or -x required when input is from standard input}\
1081 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1082 {".h", "@c-header", 0, 0, 0},
1084 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1085 external preprocessor if -save-temps is given. */
1086 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1088 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1089 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1090 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1092 -o %g.s %{!o*:--output-pch=%i.gch}\
1093 %W{o*:--output-pch=%*}%V}\
1094 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1095 cc1 %(cpp_unique_options) %(cc1_options)\
1096 -o %g.s %{!o*:--output-pch=%i.gch}\
1097 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1098 {".i", "@cpp-output", 0, 1, 0},
1100 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1101 {".s", "@assembler", 0, 1, 0},
1103 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1104 {".sx", "@assembler-with-cpp", 0, 1, 0},
1105 {".S", "@assembler-with-cpp", 0, 1, 0},
1106 {"@assembler-with-cpp",
1107 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1108 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1109 %{E|M|MM:%(cpp_debug_options)}\
1110 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1111 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1113 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1114 %{E|M|MM:%(cpp_debug_options)}\
1115 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1116 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1121 /* Mark end of table. */
1125 /* Number of elements in default_compilers, not counting the terminator. */
1127 static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
1129 /* A vector of options to give to the linker.
1130 These options are accumulated by %x,
1131 and substituted into the linker command with %X. */
1132 static int n_linker_options;
1133 static char **linker_options;
1135 /* A vector of options to give to the assembler.
1136 These options are accumulated by -Wa,
1137 and substituted into the assembler command with %Y. */
1138 static int n_assembler_options;
1139 static char **assembler_options;
1141 /* A vector of options to give to the preprocessor.
1142 These options are accumulated by -Wp,
1143 and substituted into the preprocessor command with %Z. */
1144 static int n_preprocessor_options;
1145 static char **preprocessor_options;
1147 /* Define how to map long options into short ones. */
1149 /* This structure describes one mapping. */
1152 /* The long option's name. */
1153 const char *const name;
1154 /* The equivalent short option. */
1155 const char *const equivalent;
1156 /* Argument info. A string of flag chars; NULL equals no options.
1157 a => argument required.
1158 o => argument optional.
1159 j => join argument to equivalent, making one word.
1160 * => require other text after NAME as an argument. */
1161 const char *const arg_info;
1164 /* This is the table of mappings. Mappings are tried sequentially
1165 for each option encountered; the first one that matches, wins. */
1167 static const struct option_map option_map[] =
1169 {"--all-warnings", "-Wall", 0},
1170 {"--ansi", "-ansi", 0},
1171 {"--assemble", "-S", 0},
1172 {"--assert", "-A", "a"},
1173 {"--classpath", "-fclasspath=", "aj"},
1174 {"--bootclasspath", "-fbootclasspath=", "aj"},
1175 {"--CLASSPATH", "-fclasspath=", "aj"},
1176 {"--combine", "-combine", 0},
1177 {"--comments", "-C", 0},
1178 {"--comments-in-macros", "-CC", 0},
1179 {"--compile", "-c", 0},
1180 {"--debug", "-g", "oj"},
1181 {"--define-macro", "-D", "aj"},
1182 {"--dependencies", "-M", 0},
1183 {"--dump", "-d", "a"},
1184 {"--dumpbase", "-dumpbase", "a"},
1185 {"--encoding", "-fencoding=", "aj"},
1186 {"--entry", "-e", 0},
1187 {"--extra-warnings", "-W", 0},
1188 {"--extdirs", "-fextdirs=", "aj"},
1189 {"--for-assembler", "-Wa", "a"},
1190 {"--for-linker", "-Xlinker", "a"},
1191 {"--force-link", "-u", "a"},
1192 {"--coverage", "-coverage", 0},
1193 {"--imacros", "-imacros", "a"},
1194 {"--include", "-include", "a"},
1195 {"--include-barrier", "-I-", 0},
1196 {"--include-directory", "-I", "aj"},
1197 {"--include-directory-after", "-idirafter", "a"},
1198 {"--include-prefix", "-iprefix", "a"},
1199 {"--include-with-prefix", "-iwithprefix", "a"},
1200 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1201 {"--include-with-prefix-after", "-iwithprefix", "a"},
1202 {"--language", "-x", "a"},
1203 {"--library-directory", "-L", "a"},
1204 {"--machine", "-m", "aj"},
1205 {"--machine-", "-m", "*j"},
1206 {"--no-canonical-prefixes", "-no-canonical-prefixes", 0},
1207 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1208 {"--no-line-commands", "-P", 0},
1209 {"--no-precompiled-includes", "-noprecomp", 0},
1210 {"--no-standard-includes", "-nostdinc", 0},
1211 {"--no-standard-libraries", "-nostdlib", 0},
1212 {"--no-warnings", "-w", 0},
1213 {"--optimize", "-O", "oj"},
1214 {"--output", "-o", "a"},
1215 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1216 {"--param", "--param", "a"},
1217 {"--pass-exit-codes", "-pass-exit-codes", 0},
1218 {"--pedantic", "-pedantic", 0},
1219 {"--pedantic-errors", "-pedantic-errors", 0},
1220 {"--pie", "-pie", 0},
1221 {"--pipe", "-pipe", 0},
1222 {"--prefix", "-B", "a"},
1223 {"--preprocess", "-E", 0},
1224 {"--print-search-dirs", "-print-search-dirs", 0},
1225 {"--print-file-name", "-print-file-name=", "aj"},
1226 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1227 {"--print-missing-file-dependencies", "-MG", 0},
1228 {"--print-multi-lib", "-print-multi-lib", 0},
1229 {"--print-multi-directory", "-print-multi-directory", 0},
1230 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1231 {"--print-prog-name", "-print-prog-name=", "aj"},
1232 {"--print-sysroot", "-print-sysroot", 0},
1233 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1234 {"--profile", "-p", 0},
1235 {"--profile-blocks", "-a", 0},
1236 {"--quiet", "-q", 0},
1237 {"--resource", "-fcompile-resource=", "aj"},
1238 {"--save-temps", "-save-temps", 0},
1239 {"--shared", "-shared", 0},
1240 {"--silent", "-q", 0},
1241 {"--specs", "-specs=", "aj"},
1242 {"--static", "-static", 0},
1243 {"--std", "-std=", "aj"},
1244 {"--symbolic", "-symbolic", 0},
1245 {"--sysroot", "--sysroot=", "aj"},
1246 {"--time", "-time", 0},
1247 {"--trace-includes", "-H", 0},
1248 {"--traditional", "-traditional", 0},
1249 {"--traditional-cpp", "-traditional-cpp", 0},
1250 {"--trigraphs", "-trigraphs", 0},
1251 {"--undefine-macro", "-U", "aj"},
1252 {"--user-dependencies", "-MM", 0},
1253 {"--verbose", "-v", 0},
1254 {"--warn-", "-W", "*j"},
1255 {"--write-dependencies", "-MD", 0},
1256 {"--write-user-dependencies", "-MMD", 0},
1261 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1262 static const struct {
1263 const char *const option_found;
1264 const char *const replacements;
1265 } target_option_translations[] =
1267 TARGET_OPTION_TRANSLATE_TABLE,
1272 /* Translate the options described by *ARGCP and *ARGVP.
1273 Make a new vector and store it back in *ARGVP,
1274 and store its length in *ARGCP. */
1277 translate_options (int *argcp, const char *const **argvp)
1281 const char *const *argv = *argvp;
1282 int newvsize = (argc + 2) * 2 * sizeof (const char *);
1283 const char **newv = XNEWVAR (const char *, newvsize);
1287 newv[newindex++] = argv[i++];
1291 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1295 target_option_translations[tott_idx].option_found;
1298 if (strcmp (target_option_translations[tott_idx].option_found,
1305 for (sp = target_option_translations[tott_idx].replacements;
1312 newvsize += spaces * sizeof (const char *);
1313 newv = XRESIZEVAR (const char *, newv, newvsize);
1315 sp = target_option_translations[tott_idx].replacements;
1324 newv[newindex++] = np;
1325 while (*np != ' ' && *np)
1336 if (target_option_translations[tott_idx].option_found)
1340 /* Translate -- options. */
1341 if (argv[i][0] == '-' && argv[i][1] == '-')
1344 /* Find a mapping that applies to this option. */
1345 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1347 size_t optlen = strlen (option_map[j].name);
1348 size_t arglen = strlen (argv[i]);
1349 size_t complen = arglen > optlen ? optlen : arglen;
1350 const char *arginfo = option_map[j].arg_info;
1355 if (!strncmp (argv[i], option_map[j].name, complen))
1357 const char *arg = 0;
1359 if (arglen < optlen)
1362 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1363 if (strlen (option_map[k].name) >= arglen
1364 && !strncmp (argv[i], option_map[k].name, arglen))
1366 error ("ambiguous abbreviation %s", argv[i]);
1370 if (k != ARRAY_SIZE (option_map))
1374 if (arglen > optlen)
1376 /* If the option has an argument, accept that. */
1377 if (argv[i][optlen] == '=')
1378 arg = argv[i] + optlen + 1;
1380 /* If this mapping requires extra text at end of name,
1381 accept that as "argument". */
1382 else if (strchr (arginfo, '*') != 0)
1383 arg = argv[i] + optlen;
1385 /* Otherwise, extra text at end means mismatch.
1386 Try other mappings. */
1391 else if (strchr (arginfo, '*') != 0)
1393 error ("incomplete '%s' option", option_map[j].name);
1397 /* Handle arguments. */
1398 if (strchr (arginfo, 'a') != 0)
1404 error ("missing argument to '%s' option",
1405 option_map[j].name);
1412 else if (strchr (arginfo, '*') != 0)
1414 else if (strchr (arginfo, 'o') == 0)
1417 error ("extraneous argument to '%s' option",
1418 option_map[j].name);
1422 /* Store the translation as one argv elt or as two. */
1423 if (arg != 0 && strchr (arginfo, 'j') != 0)
1424 newv[newindex++] = concat (option_map[j].equivalent, arg,
1428 newv[newindex++] = option_map[j].equivalent;
1429 newv[newindex++] = arg;
1432 newv[newindex++] = option_map[j].equivalent;
1440 /* Handle old-fashioned options--just copy them through,
1441 with their arguments. */
1442 else if (argv[i][0] == '-')
1444 const char *p = argv[i] + 1;
1448 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1449 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1450 else if (WORD_SWITCH_TAKES_ARG (p))
1451 nskip += WORD_SWITCH_TAKES_ARG (p);
1452 else if ((c == 'B' || c == 'b' || c == 'x')
1455 else if (! strcmp (p, "Xlinker"))
1457 else if (! strcmp (p, "Xpreprocessor"))
1459 else if (! strcmp (p, "Xassembler"))
1462 /* Watch out for an option at the end of the command line that
1463 is missing arguments, and avoid skipping past the end of the
1465 if (nskip + i > argc)
1470 newv[newindex++] = argv[i++];
1475 /* Ordinary operands, or +e options. */
1476 newv[newindex++] = argv[i++];
1486 skip_whitespace (char *p)
1490 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1491 be considered whitespace. */
1492 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1494 else if (*p == '\n' || *p == ' ' || *p == '\t')
1508 /* Structures to keep track of prefixes to try when looking for files. */
1512 const char *prefix; /* String to prepend to the path. */
1513 struct prefix_list *next; /* Next in linked list. */
1514 int require_machine_suffix; /* Don't use without machine_suffix. */
1515 /* 2 means try both machine_suffix and just_machine_suffix. */
1516 int priority; /* Sort key - priority within list. */
1517 int os_multilib; /* 1 if OS multilib scheme should be used,
1518 0 for GCC multilib scheme. */
1523 struct prefix_list *plist; /* List of prefixes to try */
1524 int max_len; /* Max length of a prefix in PLIST */
1525 const char *name; /* Name of this list (used in config stuff) */
1528 /* List of prefixes to try when looking for executables. */
1530 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1532 /* List of prefixes to try when looking for startup (crt0) files. */
1534 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1536 /* List of prefixes to try when looking for include files. */
1538 static struct path_prefix include_prefixes = { 0, 0, "include" };
1540 /* Suffix to attach to directories searched for commands.
1541 This looks like `MACHINE/VERSION/'. */
1543 static const char *machine_suffix = 0;
1545 /* Suffix to attach to directories searched for commands.
1546 This is just `MACHINE/'. */
1548 static const char *just_machine_suffix = 0;
1550 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1552 static const char *gcc_exec_prefix;
1554 /* Adjusted value of standard_libexec_prefix. */
1556 static const char *gcc_libexec_prefix;
1558 /* Default prefixes to attach to command names. */
1560 #ifndef STANDARD_STARTFILE_PREFIX_1
1561 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1563 #ifndef STANDARD_STARTFILE_PREFIX_2
1564 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1567 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1568 #undef MD_EXEC_PREFIX
1569 #undef MD_STARTFILE_PREFIX
1570 #undef MD_STARTFILE_PREFIX_1
1573 /* If no prefixes defined, use the null string, which will disable them. */
1574 #ifndef MD_EXEC_PREFIX
1575 #define MD_EXEC_PREFIX ""
1577 #ifndef MD_STARTFILE_PREFIX
1578 #define MD_STARTFILE_PREFIX ""
1580 #ifndef MD_STARTFILE_PREFIX_1
1581 #define MD_STARTFILE_PREFIX_1 ""
1584 /* These directories are locations set at configure-time based on the
1585 --prefix option provided to configure. Their initializers are
1586 defined in Makefile.in. These paths are not *directly* used when
1587 gcc_exec_prefix is set because, in that case, we know where the
1588 compiler has been installed, and use paths relative to that
1589 location instead. */
1590 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1591 static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
1592 static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1593 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1595 /* For native compilers, these are well-known paths containing
1596 components that may be provided by the system. For cross
1597 compilers, these paths are not used. */
1598 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1599 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1600 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1601 static const char *const standard_startfile_prefix_1
1602 = STANDARD_STARTFILE_PREFIX_1;
1603 static const char *const standard_startfile_prefix_2
1604 = STANDARD_STARTFILE_PREFIX_2;
1606 /* A relative path to be used in finding the location of tools
1607 relative to the driver. */
1608 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1610 /* Subdirectory to use for locating libraries. Set by
1611 set_multilib_dir based on the compilation options. */
1613 static const char *multilib_dir;
1615 /* Subdirectory to use for locating libraries in OS conventions. Set by
1616 set_multilib_dir based on the compilation options. */
1618 static const char *multilib_os_dir;
1620 /* Structure to keep track of the specs that have been defined so far.
1621 These are accessed using %(specname) or %[specname] in a compiler
1626 /* The following 2 fields must be first */
1627 /* to allow EXTRA_SPECS to be initialized */
1628 const char *name; /* name of the spec. */
1629 const char *ptr; /* available ptr if no static pointer */
1631 /* The following fields are not initialized */
1632 /* by EXTRA_SPECS */
1633 const char **ptr_spec; /* pointer to the spec itself. */
1634 struct spec_list *next; /* Next spec in linked list. */
1635 int name_len; /* length of the name */
1636 int alloc_p; /* whether string was allocated */
1639 #define INIT_STATIC_SPEC(NAME,PTR) \
1640 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1642 /* List of statically defined specs. */
1643 static struct spec_list static_specs[] =
1645 INIT_STATIC_SPEC ("asm", &asm_spec),
1646 INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1647 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1648 INIT_STATIC_SPEC ("asm_options", &asm_options),
1649 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1650 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1651 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1652 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options),
1653 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options),
1654 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1655 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1656 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1657 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1658 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec),
1659 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec),
1660 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1661 INIT_STATIC_SPEC ("link", &link_spec),
1662 INIT_STATIC_SPEC ("lib", &lib_spec),
1663 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec),
1664 INIT_STATIC_SPEC ("mflib", &mflib_spec),
1665 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec),
1666 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1667 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1668 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1669 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1670 INIT_STATIC_SPEC ("version", &compiler_version),
1671 INIT_STATIC_SPEC ("multilib", &multilib_select),
1672 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1673 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1674 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1675 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1676 INIT_STATIC_SPEC ("multilib_options", &multilib_options),
1677 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1678 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec),
1679 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec),
1680 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec),
1681 INIT_STATIC_SPEC ("lto_libgcc", <o_libgcc_spec),
1682 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1683 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1684 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1685 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1686 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
1687 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec),
1688 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
1689 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
1692 #ifdef EXTRA_SPECS /* additional specs needed */
1693 /* Structure to keep track of just the first two args of a spec_list.
1694 That is all that the EXTRA_SPECS macro gives us. */
1697 const char *const name;
1698 const char *const ptr;
1701 static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1702 static struct spec_list *extra_specs = (struct spec_list *) 0;
1705 /* List of dynamically allocates specs that have been defined so far. */
1707 static struct spec_list *specs = (struct spec_list *) 0;
1709 /* List of static spec functions. */
1711 static const struct spec_function static_spec_functions[] =
1713 { "getenv", getenv_spec_function },
1714 { "if-exists", if_exists_spec_function },
1715 { "if-exists-else", if_exists_else_spec_function },
1716 { "replace-outfile", replace_outfile_spec_function },
1717 { "version-compare", version_compare_spec_function },
1718 { "include", include_spec_function },
1719 { "print-asm-header", print_asm_header_spec_function },
1720 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function },
1721 { "compare-debug-self-opt", compare_debug_self_opt_spec_function },
1722 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function },
1723 #ifdef EXTRA_SPEC_FUNCTIONS
1724 EXTRA_SPEC_FUNCTIONS
1729 static int processing_spec_function;
1731 /* Add appropriate libgcc specs to OBSTACK, taking into account
1732 various permutations of -shared-libgcc, -shared, and such. */
1734 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1736 #ifndef USE_LD_AS_NEEDED
1737 #define USE_LD_AS_NEEDED 0
1741 init_gcc_specs (struct obstack *obstack, const char *shared_name,
1742 const char *static_name, const char *eh_name)
1746 buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}"
1747 "%{!static:%{!static-libgcc:"
1748 #if USE_LD_AS_NEEDED
1749 "%{!shared-libgcc:",
1750 static_name, " --as-needed ", shared_name, " --no-as-needed"
1753 shared_name, "%{!shared: ", static_name, "}"
1757 "%{!shared-libgcc:", static_name, " ", eh_name, "}"
1758 "%{shared-libgcc:", shared_name, " ", static_name, "}"
1762 "%{shared-libgcc:", shared_name, "}"
1763 "%{!shared-libgcc:", static_name, "}"
1766 "%{shared:", shared_name, "}"
1771 obstack_grow (obstack, buf, strlen (buf));
1774 #endif /* ENABLE_SHARED_LIBGCC */
1776 /* Initialize the specs lookup routines. */
1781 struct spec_list *next = (struct spec_list *) 0;
1782 struct spec_list *sl = (struct spec_list *) 0;
1786 return; /* Already initialized. */
1789 notice ("Using built-in specs.\n");
1792 extra_specs = XCNEWVEC (struct spec_list, ARRAY_SIZE (extra_specs_1));
1794 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1796 sl = &extra_specs[i];
1797 sl->name = extra_specs_1[i].name;
1798 sl->ptr = extra_specs_1[i].ptr;
1800 sl->name_len = strlen (sl->name);
1801 sl->ptr_spec = &sl->ptr;
1806 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1808 sl = &static_specs[i];
1813 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1814 /* ??? If neither -shared-libgcc nor --static-libgcc was
1815 seen, then we should be making an educated guess. Some proposed
1816 heuristics for ELF include:
1818 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1819 program will be doing dynamic loading, which will likely
1820 need the shared libgcc.
1822 (2) If "-ldl", then it's also a fair bet that we're doing
1825 (3) For each ET_DYN we're linking against (either through -lfoo
1826 or /some/path/foo.so), check to see whether it or one of
1827 its dependencies depends on a shared libgcc.
1831 If the runtime is fixed to look for program headers instead
1832 of calling __register_frame_info at all, for each object,
1833 use the shared libgcc if any EH symbol referenced.
1835 If crtstuff is fixed to not invoke __register_frame_info
1836 automatically, for each object, use the shared libgcc if
1837 any non-empty unwind section found.
1839 Doing any of this probably requires invoking an external program to
1840 do the actual object file scanning. */
1842 const char *p = libgcc_spec;
1845 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1846 when given the proper command line arguments. */
1849 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1851 init_gcc_specs (&obstack,
1853 #ifdef USE_LIBUNWIND_EXCEPTIONS
1859 #ifdef USE_LIBUNWIND_EXCEPTIONS
1860 # ifdef HAVE_LD_STATIC_DYNAMIC
1861 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1871 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1873 /* Ug. We don't know shared library extensions. Hope that
1874 systems that use this form don't do shared libraries. */
1875 init_gcc_specs (&obstack,
1879 #ifdef USE_LIBUNWIND_EXCEPTIONS
1888 obstack_1grow (&obstack, *p);
1889 in_sep = (*p == ' ');
1894 obstack_1grow (&obstack, '\0');
1895 libgcc_spec = XOBFINISH (&obstack, const char *);
1898 #ifdef USE_AS_TRADITIONAL_FORMAT
1899 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1901 static const char tf[] = "--traditional-format ";
1902 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1903 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1904 asm_spec = XOBFINISH (&obstack, const char *);
1908 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1909 # ifdef LINK_BUILDID_SPEC
1910 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1911 obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof(LINK_BUILDID_SPEC) - 1);
1913 # ifdef LINK_EH_SPEC
1914 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1915 obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
1917 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
1918 link_spec = XOBFINISH (&obstack, const char *);
1924 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1925 removed; If the spec starts with a + then SPEC is added to the end of the
1929 set_spec (const char *name, const char *spec)
1931 struct spec_list *sl;
1932 const char *old_spec;
1933 int name_len = strlen (name);
1936 /* If this is the first call, initialize the statically allocated specs. */
1939 struct spec_list *next = (struct spec_list *) 0;
1940 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1942 sl = &static_specs[i];
1949 /* See if the spec already exists. */
1950 for (sl = specs; sl; sl = sl->next)
1951 if (name_len == sl->name_len && !strcmp (sl->name, name))
1956 /* Not found - make it. */
1957 sl = XNEW (struct spec_list);
1958 sl->name = xstrdup (name);
1959 sl->name_len = name_len;
1960 sl->ptr_spec = &sl->ptr;
1962 *(sl->ptr_spec) = "";
1967 old_spec = *(sl->ptr_spec);
1968 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1969 ? concat (old_spec, spec + 1, NULL)
1974 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1977 /* Free the old spec. */
1978 if (old_spec && sl->alloc_p)
1979 free (CONST_CAST(char *, old_spec));
1984 /* Accumulate a command (program name and args), and run it. */
1986 /* Vector of pointers to arguments in the current line of specifications. */
1988 static const char **argbuf;
1990 /* Number of elements allocated in argbuf. */
1992 static int argbuf_length;
1994 /* Number of elements in argbuf currently in use (containing args). */
1996 static int argbuf_index;
1998 /* Position in the argbuf array containing the name of the output file
1999 (the value associated with the "-o" flag). */
2001 static int have_o_argbuf_index = 0;
2003 /* Were the options -c, -S or -E passed. */
2004 static int have_c = 0;
2006 /* Was the option -o passed. */
2007 static int have_o = 0;
2009 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
2010 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2013 static struct temp_name {
2014 const char *suffix; /* suffix associated with the code. */
2015 int length; /* strlen (suffix). */
2016 int unique; /* Indicates whether %g or %u/%U was used. */
2017 const char *filename; /* associated filename. */
2018 int filename_length; /* strlen (filename). */
2019 struct temp_name *next;
2022 /* Number of commands executed so far. */
2024 static int execution_count;
2026 /* Number of commands that exited with a signal. */
2028 static int signal_count;
2030 /* Name with which this program was invoked. */
2032 static const char *programname;
2034 /* Allocate the argument vector. */
2040 argbuf = XNEWVEC (const char *, argbuf_length);
2043 /* Clear out the vector of arguments (after a command is executed). */
2051 /* Add one argument to the vector at the end.
2052 This is done when a space is seen or at the end of the line.
2053 If DELETE_ALWAYS is nonzero, the arg is a filename
2054 and the file should be deleted eventually.
2055 If DELETE_FAILURE is nonzero, the arg is a filename
2056 and the file should be deleted if this compilation fails. */
2059 store_arg (const char *arg, int delete_always, int delete_failure)
2061 if (argbuf_index + 1 == argbuf_length)
2062 argbuf = XRESIZEVEC (const char *, argbuf, (argbuf_length *= 2));
2064 argbuf[argbuf_index++] = arg;
2065 argbuf[argbuf_index] = 0;
2067 if (strcmp (arg, "-o") == 0)
2068 have_o_argbuf_index = argbuf_index;
2069 if (delete_always || delete_failure)
2070 record_temp_file (arg, delete_always, delete_failure);
2073 /* Load specs from a file name named FILENAME, replacing occurrences of
2074 various different types of line-endings, \r\n, \n\r and just \r, with
2078 load_specs (const char *filename)
2082 struct stat statbuf;
2089 notice ("Reading specs from %s\n", filename);
2091 /* Open and stat the file. */
2092 desc = open (filename, O_RDONLY, 0);
2094 pfatal_with_name (filename);
2095 if (stat (filename, &statbuf) < 0)
2096 pfatal_with_name (filename);
2098 /* Read contents of file into BUFFER. */
2099 buffer = XNEWVEC (char, statbuf.st_size + 1);
2100 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
2102 pfatal_with_name (filename);
2103 buffer[readlen] = 0;
2106 specs = XNEWVEC (char, readlen + 1);
2108 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
2114 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
2116 else if (*(buffer_p + 1) == '\n') /* \r\n */
2130 /* Read compilation specs from a file named FILENAME,
2131 replacing the default ones.
2133 A suffix which starts with `*' is a definition for
2134 one of the machine-specific sub-specs. The "suffix" should be
2135 *asm, *cc1, *cpp, *link, *startfile, etc.
2136 The corresponding spec is stored in asm_spec, etc.,
2137 rather than in the `compilers' vector.
2139 Anything invalid in the file is a fatal error. */
2142 read_specs (const char *filename, int main_p)
2147 buffer = load_specs (filename);
2149 /* Scan BUFFER for specs, putting them in the vector. */
2155 char *in, *out, *p1, *p2, *p3;
2157 /* Advance P in BUFFER to the next nonblank nocomment line. */
2158 p = skip_whitespace (p);
2162 /* Is this a special command that starts with '%'? */
2163 /* Don't allow this for the main specs file, since it would
2164 encourage people to overwrite it. */
2165 if (*p == '%' && !main_p)
2168 while (*p && *p != '\n')
2174 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
2175 && (p1[sizeof "%include" - 1] == ' '
2176 || p1[sizeof "%include" - 1] == '\t'))
2180 p1 += sizeof ("%include");
2181 while (*p1 == ' ' || *p1 == '\t')
2184 if (*p1++ != '<' || p[-2] != '>')
2185 fatal ("specs %%include syntax malformed after %ld characters",
2186 (long) (p1 - buffer + 1));
2189 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2190 read_specs (new_filename ? new_filename : p1, FALSE);
2193 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
2194 && (p1[sizeof "%include_noerr" - 1] == ' '
2195 || p1[sizeof "%include_noerr" - 1] == '\t'))
2199 p1 += sizeof "%include_noerr";
2200 while (*p1 == ' ' || *p1 == '\t')
2203 if (*p1++ != '<' || p[-2] != '>')
2204 fatal ("specs %%include syntax malformed after %ld characters",
2205 (long) (p1 - buffer + 1));
2208 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2210 read_specs (new_filename, FALSE);
2211 else if (verbose_flag)
2212 notice ("could not find specs file %s\n", p1);
2215 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
2216 && (p1[sizeof "%rename" - 1] == ' '
2217 || p1[sizeof "%rename" - 1] == '\t'))
2220 struct spec_list *sl;
2221 struct spec_list *newsl;
2223 /* Get original name. */
2224 p1 += sizeof "%rename";
2225 while (*p1 == ' ' || *p1 == '\t')
2228 if (! ISALPHA ((unsigned char) *p1))
2229 fatal ("specs %%rename syntax malformed after %ld characters",
2230 (long) (p1 - buffer));
2233 while (*p2 && !ISSPACE ((unsigned char) *p2))
2236 if (*p2 != ' ' && *p2 != '\t')
2237 fatal ("specs %%rename syntax malformed after %ld characters",
2238 (long) (p2 - buffer));
2242 while (*p2 == ' ' || *p2 == '\t')
2245 if (! ISALPHA ((unsigned char) *p2))
2246 fatal ("specs %%rename syntax malformed after %ld characters",
2247 (long) (p2 - buffer));
2249 /* Get new spec name. */
2251 while (*p3 && !ISSPACE ((unsigned char) *p3))
2255 fatal ("specs %%rename syntax malformed after %ld characters",
2256 (long) (p3 - buffer));
2259 for (sl = specs; sl; sl = sl->next)
2260 if (name_len == sl->name_len && !strcmp (sl->name, p1))
2264 fatal ("specs %s spec was not found to be renamed", p1);
2266 if (strcmp (p1, p2) == 0)
2269 for (newsl = specs; newsl; newsl = newsl->next)
2270 if (strcmp (newsl->name, p2) == 0)
2271 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2276 notice ("rename spec %s to %s\n", p1, p2);
2278 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
2282 set_spec (p2, *(sl->ptr_spec));
2284 free (CONST_CAST (char *, *(sl->ptr_spec)));
2286 *(sl->ptr_spec) = "";
2291 fatal ("specs unknown %% command after %ld characters",
2292 (long) (p1 - buffer));
2295 /* Find the colon that should end the suffix. */
2297 while (*p1 && *p1 != ':' && *p1 != '\n')
2300 /* The colon shouldn't be missing. */
2302 fatal ("specs file malformed after %ld characters",
2303 (long) (p1 - buffer));
2305 /* Skip back over trailing whitespace. */
2307 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
2310 /* Copy the suffix to a string. */
2311 suffix = save_string (p, p2 - p);
2312 /* Find the next line. */
2313 p = skip_whitespace (p1 + 1);
2315 fatal ("specs file malformed after %ld characters",
2316 (long) (p - buffer));
2319 /* Find next blank line or end of string. */
2320 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
2323 /* Specs end at the blank line and do not include the newline. */
2324 spec = save_string (p, p1 - p);
2327 /* Delete backslash-newline sequences from the spec. */
2332 if (in[0] == '\\' && in[1] == '\n')
2334 else if (in[0] == '#')
2335 while (*in && *in != '\n')
2343 if (suffix[0] == '*')
2345 if (! strcmp (suffix, "*link_command"))
2346 link_command_spec = spec;
2348 set_spec (suffix + 1, spec);
2352 /* Add this pair to the vector. */
2354 = XRESIZEVEC (struct compiler, compilers, n_compilers + 2);
2356 compilers[n_compilers].suffix = suffix;
2357 compilers[n_compilers].spec = spec;
2359 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
2363 link_command_spec = spec;
2366 if (link_command_spec == 0)
2367 fatal ("spec file has no spec for linking");
2370 /* Record the names of temporary files we tell compilers to write,
2371 and delete them at the end of the run. */
2373 /* This is the common prefix we use to make temp file names.
2374 It is chosen once for each run of this program.
2375 It is substituted into a spec by %g or %j.
2376 Thus, all temp file names contain this prefix.
2377 In practice, all temp file names start with this prefix.
2379 This prefix comes from the envvar TMPDIR if it is defined;
2380 otherwise, from the P_tmpdir macro if that is defined;
2381 otherwise, in /usr/tmp or /tmp;
2382 or finally the current directory if all else fails. */
2384 static const char *temp_filename;
2386 /* Length of the prefix. */
2388 static int temp_filename_length;
2390 /* Define the list of temporary files to delete. */
2395 struct temp_file *next;
2398 /* Queue of files to delete on success or failure of compilation. */
2399 static struct temp_file *always_delete_queue;
2400 /* Queue of files to delete on failure of compilation. */
2401 static struct temp_file *failure_delete_queue;
2403 /* Record FILENAME as a file to be deleted automatically.
2404 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2405 otherwise delete it in any case.
2406 FAIL_DELETE nonzero means delete it if a compilation step fails;
2407 otherwise delete it in any case. */
2410 record_temp_file (const char *filename, int always_delete, int fail_delete)
2412 char *const name = xstrdup (filename);
2416 struct temp_file *temp;
2417 for (temp = always_delete_queue; temp; temp = temp->next)
2418 if (! strcmp (name, temp->name))
2421 temp = XNEW (struct temp_file);
2422 temp->next = always_delete_queue;
2424 always_delete_queue = temp;
2431 struct temp_file *temp;
2432 for (temp = failure_delete_queue; temp; temp = temp->next)
2433 if (! strcmp (name, temp->name))
2436 temp = XNEW (struct temp_file);
2437 temp->next = failure_delete_queue;
2439 failure_delete_queue = temp;
2445 /* Delete all the temporary files whose names we previously recorded. */
2447 #ifndef DELETE_IF_ORDINARY
2448 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2451 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2452 if (unlink (NAME) < 0) \
2454 perror_with_name (NAME); \
2459 delete_if_ordinary (const char *name)
2465 printf ("Delete %s? (y or n) ", name);
2469 while ((c = getchar ()) != '\n' && c != EOF)
2472 if (i == 'y' || i == 'Y')
2474 DELETE_IF_ORDINARY (name, st, verbose_flag);
2478 delete_temp_files (void)
2480 struct temp_file *temp;
2482 for (temp = always_delete_queue; temp; temp = temp->next)
2483 delete_if_ordinary (temp->name);
2484 always_delete_queue = 0;
2487 /* Delete all the files to be deleted on error. */
2490 delete_failure_queue (void)
2492 struct temp_file *temp;
2494 for (temp = failure_delete_queue; temp; temp = temp->next)
2495 delete_if_ordinary (temp->name);
2499 clear_failure_queue (void)
2501 failure_delete_queue = 0;
2504 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2506 If DO_MULTI is true iterate over the paths twice, first with multilib
2507 suffix then without, otherwise iterate over the paths once without
2508 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2509 to avoid visiting the same path twice, but we could do better. For
2510 instance, /usr/lib/../lib is considered different from /usr/lib.
2511 At least EXTRA_SPACE chars past the end of the path passed to
2512 CALLBACK are available for use by the callback.
2513 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2515 Returns the value returned by CALLBACK. */
2518 for_each_path (const struct path_prefix *paths,
2521 void *(*callback) (char *, void *),
2522 void *callback_info)
2524 struct prefix_list *pl;
2525 const char *multi_dir = NULL;
2526 const char *multi_os_dir = NULL;
2527 const char *multi_suffix;
2528 const char *just_multi_suffix;
2531 bool skip_multi_dir = false;
2532 bool skip_multi_os_dir = false;
2534 multi_suffix = machine_suffix;
2535 just_multi_suffix = just_machine_suffix;
2536 if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0)
2538 multi_dir = concat (multilib_dir, dir_separator_str, NULL);
2539 multi_suffix = concat (multi_suffix, multi_dir, NULL);
2540 just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL);
2542 if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0)
2543 multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL);
2547 size_t multi_dir_len = 0;
2548 size_t multi_os_dir_len = 0;
2550 size_t just_suffix_len;
2554 multi_dir_len = strlen (multi_dir);
2556 multi_os_dir_len = strlen (multi_os_dir);
2557 suffix_len = strlen (multi_suffix);
2558 just_suffix_len = strlen (just_multi_suffix);
2562 len = paths->max_len + extra_space + 1;
2563 if (suffix_len > multi_os_dir_len)
2566 len += multi_os_dir_len;
2567 path = XNEWVEC (char, len);
2570 for (pl = paths->plist; pl != 0; pl = pl->next)
2572 len = strlen (pl->prefix);
2573 memcpy (path, pl->prefix, len);
2575 /* Look first in MACHINE/VERSION subdirectory. */
2576 if (!skip_multi_dir)
2578 memcpy (path + len, multi_suffix, suffix_len + 1);
2579 ret = callback (path, callback_info);
2584 /* Some paths are tried with just the machine (ie. target)
2585 subdir. This is used for finding as, ld, etc. */
2587 && pl->require_machine_suffix == 2)
2589 memcpy (path + len, just_multi_suffix, just_suffix_len + 1);
2590 ret = callback (path, callback_info);
2595 /* Now try the base path. */
2596 if (!pl->require_machine_suffix
2597 && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir))
2599 const char *this_multi;
2600 size_t this_multi_len;
2602 if (pl->os_multilib)
2604 this_multi = multi_os_dir;
2605 this_multi_len = multi_os_dir_len;
2609 this_multi = multi_dir;
2610 this_multi_len = multi_dir_len;
2614 memcpy (path + len, this_multi, this_multi_len + 1);
2618 ret = callback (path, callback_info);
2626 if (multi_dir == NULL && multi_os_dir == NULL)
2629 /* Run through the paths again, this time without multilibs.
2630 Don't repeat any we have already seen. */
2633 free (CONST_CAST (char *, multi_dir));
2635 free (CONST_CAST (char *, multi_suffix));
2636 multi_suffix = machine_suffix;
2637 free (CONST_CAST (char *, just_multi_suffix));
2638 just_multi_suffix = just_machine_suffix;
2641 skip_multi_dir = true;
2644 free (CONST_CAST (char *, multi_os_dir));
2645 multi_os_dir = NULL;
2648 skip_multi_os_dir = true;
2653 free (CONST_CAST (char *, multi_dir));
2654 free (CONST_CAST (char *, multi_suffix));
2655 free (CONST_CAST (char *, just_multi_suffix));
2658 free (CONST_CAST (char *, multi_os_dir));
2664 /* Callback for build_search_list. Adds path to obstack being built. */
2666 struct add_to_obstack_info {
2673 add_to_obstack (char *path, void *data)
2675 struct add_to_obstack_info *info = (struct add_to_obstack_info *) data;
2677 if (info->check_dir && !is_directory (path, false))
2680 if (!info->first_time)
2681 obstack_1grow (info->ob, PATH_SEPARATOR);
2683 obstack_grow (info->ob, path, strlen (path));
2685 info->first_time = false;
2689 /* Add or change the value of an environment variable, outputting the
2690 change to standard error if in verbose mode. */
2692 xputenv (const char *string)
2695 notice ("%s\n", string);
2696 putenv (CONST_CAST (char *, string));
2699 /* Build a list of search directories from PATHS.
2700 PREFIX is a string to prepend to the list.
2701 If CHECK_DIR_P is true we ensure the directory exists.
2702 If DO_MULTI is true, multilib paths are output first, then
2704 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2705 It is also used by the --print-search-dirs flag. */
2708 build_search_list (const struct path_prefix *paths, const char *prefix,
2709 bool check_dir, bool do_multi)
2711 struct add_to_obstack_info info;
2713 info.ob = &collect_obstack;
2714 info.check_dir = check_dir;
2715 info.first_time = true;
2717 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2718 obstack_1grow (&collect_obstack, '=');
2720 for_each_path (paths, do_multi, 0, add_to_obstack, &info);
2722 obstack_1grow (&collect_obstack, '\0');
2723 return XOBFINISH (&collect_obstack, char *);
2726 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2730 putenv_from_prefixes (const struct path_prefix *paths, const char *env_var,
2733 xputenv (build_search_list (paths, env_var, true, do_multi));
2736 /* Check whether NAME can be accessed in MODE. This is like access,
2737 except that it never considers directories to be executable. */
2740 access_check (const char *name, int mode)
2746 if (stat (name, &st) < 0
2747 || S_ISDIR (st.st_mode))
2751 return access (name, mode);
2754 /* Callback for find_a_file. Appends the file name to the directory
2755 path. If the resulting file exists in the right mode, return the
2756 full pathname to the file. */
2758 struct file_at_path_info {
2767 file_at_path (char *path, void *data)
2769 struct file_at_path_info *info = (struct file_at_path_info *) data;
2770 size_t len = strlen (path);
2772 memcpy (path + len, info->name, info->name_len);
2773 len += info->name_len;
2775 /* Some systems have a suffix for executable files.
2776 So try appending that first. */
2777 if (info->suffix_len)
2779 memcpy (path + len, info->suffix, info->suffix_len + 1);
2780 if (access_check (path, info->mode) == 0)
2785 if (access_check (path, info->mode) == 0)
2791 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2792 access to check permissions. If DO_MULTI is true, search multilib
2793 paths then non-multilib paths, otherwise do not search multilib paths.
2794 Return 0 if not found, otherwise return its name, allocated with malloc. */
2797 find_a_file (const struct path_prefix *pprefix, const char *name, int mode,
2800 struct file_at_path_info info;
2802 #ifdef DEFAULT_ASSEMBLER
2803 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2804 return xstrdup (DEFAULT_ASSEMBLER);
2807 #ifdef DEFAULT_LINKER
2808 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2809 return xstrdup (DEFAULT_LINKER);
2812 /* Determine the filename to execute (special case for absolute paths). */
2814 if (IS_ABSOLUTE_PATH (name))
2816 if (access (name, mode) == 0)
2817 return xstrdup (name);
2823 info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "";
2824 info.name_len = strlen (info.name);
2825 info.suffix_len = strlen (info.suffix);
2828 return (char*) for_each_path (pprefix, do_multi,
2829 info.name_len + info.suffix_len,
2830 file_at_path, &info);
2833 /* Ranking of prefixes in the sort list. -B prefixes are put before
2836 enum path_prefix_priority
2838 PREFIX_PRIORITY_B_OPT,
2839 PREFIX_PRIORITY_LAST
2842 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2843 order according to PRIORITY. Within each PRIORITY, new entries are
2846 If WARN is nonzero, we will warn if no file is found
2847 through this prefix. WARN should point to an int
2848 which will be set to 1 if this entry is used.
2850 COMPONENT is the value to be passed to update_path.
2852 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2853 the complete value of machine_suffix.
2854 2 means try both machine_suffix and just_machine_suffix. */
2857 add_prefix (struct path_prefix *pprefix, const char *prefix,
2858 const char *component, /* enum prefix_priority */ int priority,
2859 int require_machine_suffix, int os_multilib)
2861 struct prefix_list *pl, **prev;
2864 for (prev = &pprefix->plist;
2865 (*prev) != NULL && (*prev)->priority <= priority;
2866 prev = &(*prev)->next)
2869 /* Keep track of the longest prefix. */
2871 prefix = update_path (prefix, component);
2872 len = strlen (prefix);
2873 if (len > pprefix->max_len)
2874 pprefix->max_len = len;
2876 pl = XNEW (struct prefix_list);
2877 pl->prefix = prefix;
2878 pl->require_machine_suffix = require_machine_suffix;
2879 pl->priority = priority;
2880 pl->os_multilib = os_multilib;
2882 /* Insert after PREV. */
2887 /* Same as add_prefix, but prepending target_system_root to prefix. */
2888 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2890 add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
2891 const char *component,
2892 /* enum prefix_priority */ int priority,
2893 int require_machine_suffix, int os_multilib)
2895 if (!IS_ABSOLUTE_PATH (prefix))
2896 fatal ("system path '%s' is not absolute", prefix);
2898 if (target_system_root)
2900 if (target_sysroot_suffix)
2901 prefix = concat (target_sysroot_suffix, prefix, NULL);
2902 prefix = concat (target_system_root, prefix, NULL);
2904 /* We have to override this because GCC's notion of sysroot
2905 moves along with GCC. */
2909 add_prefix (pprefix, prefix, component, priority,
2910 require_machine_suffix, os_multilib);
2913 /* Execute the command specified by the arguments on the current line of spec.
2914 When using pipes, this includes several piped-together commands
2915 with `|' between them.
2917 Return 0 if successful, -1 if failed. */
2923 int n_commands; /* # of command. */
2925 struct pex_obj *pex;
2928 const char *prog; /* program name. */
2929 const char **argv; /* vector of args. */
2932 struct command *commands; /* each command buffer with above info. */
2934 gcc_assert (!processing_spec_function);
2938 string = find_a_file (&exec_prefixes, argbuf[0], X_OK, false);
2939 argbuf[0] = (string) ? string : argbuf[0];
2940 insert_wrapper (wrapper_string);
2943 /* Count # of piped commands. */
2944 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2945 if (strcmp (argbuf[i], "|") == 0)
2948 /* Get storage for each command. */
2949 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2951 /* Split argbuf into its separate piped processes,
2952 and record info about each one.
2953 Also search for the programs that are to be run. */
2955 commands[0].prog = argbuf[0]; /* first command. */
2956 commands[0].argv = &argbuf[0];
2958 if (!wrapper_string)
2960 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false);
2961 commands[0].argv[0] = (string) ? string : commands[0].argv[0];
2964 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2965 if (strcmp (argbuf[i], "|") == 0)
2966 { /* each command. */
2967 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2968 fatal ("-pipe not supported");
2970 argbuf[i] = 0; /* termination of command args. */
2971 commands[n_commands].prog = argbuf[i + 1];
2972 commands[n_commands].argv = &argbuf[i + 1];
2973 string = find_a_file (&exec_prefixes, commands[n_commands].prog,
2976 commands[n_commands].argv[0] = string;
2980 argbuf[argbuf_index] = 0;
2982 /* If -v, print what we are about to do, and maybe query. */
2986 /* For help listings, put a blank line between sub-processes. */
2987 if (print_help_list)
2988 fputc ('\n', stderr);
2990 /* Print each piped command as a separate line. */
2991 for (i = 0; i < n_commands; i++)
2993 const char *const *j;
2995 if (verbose_only_flag)
2997 for (j = commands[i].argv; *j; j++)
3000 fprintf (stderr, " \"");
3001 for (p = *j; *p; ++p)
3003 if (*p == '"' || *p == '\\' || *p == '$')
3004 fputc ('\\', stderr);
3007 fputc ('"', stderr);
3011 for (j = commands[i].argv; *j; j++)
3012 fprintf (stderr, " %s", *j);
3014 /* Print a pipe symbol after all but the last command. */
3015 if (i + 1 != n_commands)
3016 fprintf (stderr, " |");
3017 fprintf (stderr, "\n");
3020 if (verbose_only_flag != 0)
3022 /* verbose_only_flag should act as if the spec was
3023 executed, so increment execution_count before
3024 returning. This prevents spurious warnings about
3025 unused linker input files, etc. */
3030 notice ("\nGo ahead? (y or n) ");
3034 while (getchar () != '\n')
3037 if (i != 'y' && i != 'Y')
3042 #ifdef ENABLE_VALGRIND_CHECKING
3043 /* Run the each command through valgrind. To simplify prepending the
3044 path to valgrind and the option "-q" (for quiet operation unless
3045 something triggers), we allocate a separate argv array. */
3047 for (i = 0; i < n_commands; i++)
3053 for (argc = 0; commands[i].argv[argc] != NULL; argc++)
3056 argv = XALLOCAVEC (const char *, argc + 3);
3058 argv[0] = VALGRIND_PATH;
3060 for (j = 2; j < argc + 2; j++)
3061 argv[j] = commands[i].argv[j - 2];
3064 commands[i].argv = argv;
3065 commands[i].prog = argv[0];
3069 /* Run each piped subprocess. */
3071 pex = pex_init (PEX_USE_PIPES | ((report_times || report_times_to_file)
3072 ? PEX_RECORD_TIMES : 0),
3073 programname, temp_filename);
3075 pfatal_with_name (_("pex_init failed"));
3077 for (i = 0; i < n_commands; i++)
3081 const char *string = commands[i].argv[0];
3083 errmsg = pex_run (pex,
3084 ((i + 1 == n_commands ? PEX_LAST : 0)
3085 | (string == commands[i].prog ? PEX_SEARCH : 0)),
3086 string, CONST_CAST (char **, commands[i].argv),
3095 pfatal_with_name (errmsg);
3099 if (string != commands[i].prog)
3100 free (CONST_CAST (char *, string));
3105 /* Wait for all the subprocesses to finish. */
3109 struct pex_time *times = NULL;
3112 statuses = (int *) alloca (n_commands * sizeof (int));
3113 if (!pex_get_status (pex, n_commands, statuses))
3114 pfatal_with_name (_("failed to get exit status"));
3116 if (report_times || report_times_to_file)
3118 times = (struct pex_time *) alloca (n_commands * sizeof (struct pex_time));
3119 if (!pex_get_times (pex, n_commands, times))
3120 pfatal_with_name (_("failed to get process times"));
3125 for (i = 0; i < n_commands; ++i)
3127 int status = statuses[i];
3129 if (WIFSIGNALED (status))
3132 /* SIGPIPE is a special case. It happens in -pipe mode
3133 when the compiler dies before the preprocessor is done,
3134 or the assembler dies before the compiler is done.
3135 There's generally been an error already, and this is
3136 just fallout. So don't generate another error unless
3137 we would otherwise have succeeded. */
3138 if (WTERMSIG (status) == SIGPIPE
3139 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
3147 Internal error: %s (program %s)\n\
3148 Please submit a full bug report.\n\
3149 See %s for instructions.",
3150 strsignal (WTERMSIG (status)), commands[i].prog,
3153 else if (WIFEXITED (status)
3154 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
3156 if (WEXITSTATUS (status) > greatest_status)
3157 greatest_status = WEXITSTATUS (status);
3161 if (report_times || report_times_to_file)
3163 struct pex_time *pt = ×[i];
3166 ut = ((double) pt->user_seconds
3167 + (double) pt->user_microseconds / 1.0e6);
3168 st = ((double) pt->system_seconds
3169 + (double) pt->system_microseconds / 1.0e6);
3174 notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
3176 if (report_times_to_file)
3179 const char *const *j;
3181 fprintf (report_times_to_file, "%g %g", ut, st);
3183 for (j = &commands[i].prog; *j; j = &commands[i].argv[++c])
3186 for (p = *j; *p; ++p)
3187 if (*p == '"' || *p == '\\' || *p == '$'
3193 fprintf (report_times_to_file, " \"");
3194 for (p = *j; *p; ++p)
3196 if (*p == '"' || *p == '\\' || *p == '$')
3197 fputc ('\\', report_times_to_file);
3198 fputc (*p, report_times_to_file);
3200 fputc ('"', report_times_to_file);
3203 fprintf (report_times_to_file, " %s", *j);
3206 fputc ('\n', report_times_to_file);
3216 /* Find all the switches given to us
3217 and make a vector describing them.
3218 The elements of the vector are strings, one per switch given.
3219 If a switch uses following arguments, then the `part1' field
3220 is the switch itself and the `args' field
3221 is a null-terminated vector containing the following arguments.
3222 Bits in the `live_cond' field are:
3223 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3224 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3225 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3226 The `validated' field is nonzero if any spec has looked at this switch;
3227 if it remains zero at the end of the run, it must be meaningless. */
3229 #define SWITCH_LIVE 0x1
3230 #define SWITCH_FALSE 0x2
3231 #define SWITCH_IGNORE 0x4
3237 unsigned int live_cond;
3238 unsigned char validated;
3239 unsigned char ordering;
3242 static struct switchstr *switches;
3244 static int n_switches;
3246 /* Set to zero if -fcompare-debug is disabled, positive if it's
3247 enabled and we're running the first compilation, negative if it's
3248 enabled and we're running the second compilation. For most of the
3249 time, it's in the range -1..1, but it can be temporarily set to 2
3250 or 3 to indicate that the -fcompare-debug flags didn't come from
3251 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3252 variable, until a synthesized -fcompare-debug flag is added to the
3256 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3257 int compare_debug_second;
3259 /* Set to the flags that should be passed to the second compilation in
3260 a -fcompare-debug compilation. */
3261 const char *compare_debug_opt;
3263 static struct switchstr *switches_debug_check[2];
3265 static int n_switches_debug_check[2];
3267 static char *debug_check_temp_file[2];
3269 /* Language is one of three things:
3271 1) The name of a real programming language.
3272 2) NULL, indicating that no one has figured out
3274 3) '*', indicating that the file should be passed
3279 const char *language;
3280 struct compiler *incompiler;
3285 /* Also a vector of input files specified. */
3287 static struct infile *infiles;
3291 /* True if multiple input files are being compiled to a single
3294 static bool combine_inputs;
3296 /* This counts the number of libraries added by lang_specific_driver, so that
3297 we can tell if there were any user supplied any files or libraries. */
3299 static int added_libraries;
3301 /* And a vector of corresponding output files is made up later. */
3303 const char **outfiles;
3305 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3307 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3308 is true if we should look for an executable suffix. DO_OBJ
3309 is true if we should look for an object suffix. */
3312 convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
3313 int do_obj ATTRIBUTE_UNUSED)
3315 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3323 len = strlen (name);
3325 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3326 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3327 if (do_obj && len > 2
3328 && name[len - 2] == '.'
3329 && name[len - 1] == 'o')
3331 obstack_grow (&obstack, name, len - 2);
3332 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
3333 name = XOBFINISH (&obstack, const char *);
3337 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3338 /* If there is no filetype, make it the executable suffix (which includes
3339 the "."). But don't get confused if we have just "-o". */
3340 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
3343 for (i = len - 1; i >= 0; i--)
3344 if (IS_DIR_SEPARATOR (name[i]))
3347 for (i++; i < len; i++)
3351 obstack_grow (&obstack, name, len);
3352 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
3353 strlen (TARGET_EXECUTABLE_SUFFIX));
3354 name = XOBFINISH (&obstack, const char *);
3361 /* Display the command line switches accepted by gcc. */
3365 printf (_("Usage: %s [options] file...\n"), programname);
3366 fputs (_("Options:\n"), stdout);
3368 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
3369 fputs (_(" --help Display this information\n"), stdout);
3370 fputs (_(" --target-help Display target specific command line options\n"), stdout);
3371 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout);
3372 fputs (_(" Display specific types of command line options\n"), stdout);
3374 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
3375 fputs (_(" --version Display compiler version information\n"), stdout);
3376 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
3377 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
3378 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
3379 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
3380 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
3381 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
3382 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
3383 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
3385 -print-multi-lib Display the mapping between command line options and\n\
3386 multiple library search directories\n"), stdout);
3387 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
3388 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout);
3389 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout);
3390 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
3391 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
3392 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
3393 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout);
3394 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout);
3395 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
3396 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout);
3397 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
3398 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout);
3400 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3401 prefixes to other gcc components\n"), stdout);
3402 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
3403 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
3404 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
3405 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
3407 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3408 and libraries\n"), stdout);
3409 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
3410 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
3411 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
3412 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
3413 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
3414 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3415 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3416 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3417 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3419 -x <language> Specify the language of the following input files\n\
3420 Permissible languages include: c c++ assembler none\n\
3421 'none' means revert to the default behavior of\n\
3422 guessing the language based on the file's extension\n\
3426 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3427 passed on to the various sub-processes invoked by %s. In order to pass\n\
3428 other options on to these processes the -W<letter> options must be used.\n\
3431 /* The rest of the options are displayed by invocations of the various
3436 add_preprocessor_option (const char *option, int len)
3438 n_preprocessor_options++;
3440 if (! preprocessor_options)
3441 preprocessor_options = XNEWVEC (char *, n_preprocessor_options);
3443 preprocessor_options = XRESIZEVEC (char *, preprocessor_options,
3444 n_preprocessor_options);
3446 preprocessor_options [n_preprocessor_options - 1] =
3447 save_string (option, len);
3451 add_assembler_option (const char *option, int len)
3453 n_assembler_options++;
3455 if (! assembler_options)
3456 assembler_options = XNEWVEC (char *, n_assembler_options);
3458 assembler_options = XRESIZEVEC (char *, assembler_options,
3459 n_assembler_options);
3461 assembler_options [n_assembler_options - 1] = save_string (option, len);
3465 add_linker_option (const char *option, int len)
3469 if (! linker_options)
3470 linker_options = XNEWVEC (char *, n_linker_options);
3472 linker_options = XRESIZEVEC (char *, linker_options, n_linker_options);
3474 linker_options [n_linker_options - 1] = save_string (option, len);
3477 /* Create the vector `switches' and its contents.
3478 Store its length in `n_switches'. */
3481 process_command (int argc, const char **argv)
3486 const char *spec_lang = 0;
3487 int last_language_n_infiles;
3488 int lang_n_infiles = 0;
3489 #ifdef MODIFY_TARGET_NAME
3490 int is_modify_target_name;
3493 const char *tooldir_prefix;
3494 char *(*get_relative_prefix) (const char *, const char *,
3495 const char *) = NULL;
3497 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3501 added_libraries = 0;
3503 /* Figure compiler version from version string. */
3505 compiler_version = temp1 = xstrdup (version_string);
3507 for (; *temp1; ++temp1)
3516 /* If there is a -V or -b option (or both), process it now, before
3517 trying to interpret the rest of the command line.
3518 Use heuristic that all configuration names must have at least
3519 one dash '-'. This allows us to pass options starting with -b. */
3520 if (argc > 1 && argv[1][0] == '-'
3521 && (argv[1][1] == 'V'
3522 || (argv[1][1] == 'b'
3523 && (argv[1][2] == '\0'
3524 || NULL != strchr (argv[1] + 2, '-')))))
3526 const char *new_version = DEFAULT_TARGET_VERSION;
3527 const char *new_machine = DEFAULT_TARGET_MACHINE;
3528 const char *progname = argv[0];
3536 while (argc > 1 && argv[1][0] == '-'
3537 && (argv[1][1] == 'V'
3538 || (argv[1][1] == 'b'
3539 && (argv[1][2] == '\0'
3540 || NULL != strchr (argv[1] + 2, '-')))))
3542 char opt = argv[1][1];
3544 if (argv[1][2] != '\0')
3557 fatal ("'-%c' option must have argument", opt);
3564 for (baselen = strlen (progname); baselen > 0; baselen--)
3565 if (IS_DIR_SEPARATOR (progname[baselen-1]))
3567 new_argv0 = XDUPVAR (char, progname, baselen,
3568 baselen + concat_length (new_version, new_machine,
3569 "-gcc-", NULL) + 1);
3570 strcpy (new_argv0 + baselen, new_machine);
3571 strcat (new_argv0, "-gcc-");
3572 strcat (new_argv0, new_version);
3574 new_argv = XDUPVEC (char *, argv, argc + 1);
3575 new_argv[0] = new_argv0;
3577 errmsg = pex_one (PEX_SEARCH, new_argv0, new_argv, progname, NULL,
3578 NULL, &status, &err);
3583 fatal ("couldn't run '%s': %s", new_argv0, errmsg);
3585 fatal ("couldn't run '%s': %s: %s", new_argv0, errmsg,
3591 /* Convert new-style -- options to old-style. */
3592 translate_options (&argc,
3593 CONST_CAST2 (const char *const **, const char ***,
3596 /* Do language-specific adjustment/addition of flags. */
3597 lang_specific_driver (&argc,
3598 CONST_CAST2 (const char *const **, const char ***,
3602 /* Handle any -no-canonical-prefixes flag early, to assign the function
3603 that builds relative prefixes. This function creates default search
3604 paths that are needed later in normal option handling. */
3606 for (i = 1; i < argc; i++)
3608 if (! strcmp (argv[i], "-no-canonical-prefixes"))
3610 get_relative_prefix = make_relative_prefix_ignore_links;
3614 if (! get_relative_prefix)
3615 get_relative_prefix = make_relative_prefix;
3617 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3618 see if we can create it from the pathname specified in argv[0]. */
3620 gcc_libexec_prefix = standard_libexec_prefix;
3622 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3623 if (!gcc_exec_prefix)
3625 gcc_exec_prefix = get_relative_prefix (argv[0],
3626 standard_bindir_prefix,
3627 standard_exec_prefix);
3628 gcc_libexec_prefix = get_relative_prefix (argv[0],
3629 standard_bindir_prefix,
3630 standard_libexec_prefix);
3631 if (gcc_exec_prefix)
3632 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3636 /* make_relative_prefix requires a program name, but
3637 GCC_EXEC_PREFIX is typically a directory name with a trailing
3638 / (which is ignored by make_relative_prefix), so append a
3640 char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL);
3641 gcc_libexec_prefix = get_relative_prefix (tmp_prefix,
3642 standard_exec_prefix,
3643 standard_libexec_prefix);
3645 /* The path is unrelocated, so fallback to the original setting. */
3646 if (!gcc_libexec_prefix)
3647 gcc_libexec_prefix = standard_libexec_prefix;
3653 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3654 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3655 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3657 if (gcc_exec_prefix)
3659 int len = strlen (gcc_exec_prefix);
3661 if (len > (int) sizeof ("/lib/gcc/") - 1
3662 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3664 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
3665 if (IS_DIR_SEPARATOR (*temp)
3666 && strncmp (temp + 1, "lib", 3) == 0
3667 && IS_DIR_SEPARATOR (temp[4])
3668 && strncmp (temp + 5, "gcc", 3) == 0)
3669 len -= sizeof ("/lib/gcc/") - 1;
3672 set_std_prefix (gcc_exec_prefix, len);
3673 add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
3674 PREFIX_PRIORITY_LAST, 0, 0);
3675 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3676 PREFIX_PRIORITY_LAST, 0, 0);
3679 /* COMPILER_PATH and LIBRARY_PATH have values
3680 that are lists of directory names with colons. */
3682 GET_ENVIRONMENT (temp, "COMPILER_PATH");
3685 const char *startp, *endp;
3686 char *nstore = (char *) alloca (strlen (temp) + 3);
3688 startp = endp = temp;
3691 if (*endp == PATH_SEPARATOR || *endp == 0)
3693 strncpy (nstore, startp, endp - startp);
3695 strcpy (nstore, concat (".", dir_separator_str, NULL));
3696 else if (!IS_DIR_SEPARATOR (endp[-1]))
3698 nstore[endp - startp] = DIR_SEPARATOR;
3699 nstore[endp - startp + 1] = 0;
3702 nstore[endp - startp] = 0;
3703 add_prefix (&exec_prefixes, nstore, 0,
3704 PREFIX_PRIORITY_LAST, 0, 0);
3705 add_prefix (&include_prefixes, nstore, 0,
3706 PREFIX_PRIORITY_LAST, 0, 0);
3709 endp = startp = endp + 1;
3716 GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
3717 if (temp && *cross_compile == '0')
3719 const char *startp, *endp;
3720 char *nstore = (char *) alloca (strlen (temp) + 3);
3722 startp = endp = temp;
3725 if (*endp == PATH_SEPARATOR || *endp == 0)
3727 strncpy (nstore, startp, endp - startp);
3729 strcpy (nstore, concat (".", dir_separator_str, NULL));
3730 else if (!IS_DIR_SEPARATOR (endp[-1]))
3732 nstore[endp - startp] = DIR_SEPARATOR;
3733 nstore[endp - startp + 1] = 0;
3736 nstore[endp - startp] = 0;
3737 add_prefix (&startfile_prefixes, nstore, NULL,
3738 PREFIX_PRIORITY_LAST, 0, 1);
3741 endp = startp = endp + 1;
3748 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3749 GET_ENVIRONMENT (temp, "LPATH");
3750 if (temp && *cross_compile == '0')
3752 const char *startp, *endp;
3753 char *nstore = (char *) alloca (strlen (temp) + 3);
3755 startp = endp = temp;
3758 if (*endp == PATH_SEPARATOR || *endp == 0)
3760 strncpy (nstore, startp, endp - startp);
3762 strcpy (nstore, concat (".", dir_separator_str, NULL));
3763 else if (!IS_DIR_SEPARATOR (endp[-1]))
3765 nstore[endp - startp] = DIR_SEPARATOR;
3766 nstore[endp - startp + 1] = 0;
3769 nstore[endp - startp] = 0;
3770 add_prefix (&startfile_prefixes, nstore, NULL,
3771 PREFIX_PRIORITY_LAST, 0, 1);
3774 endp = startp = endp + 1;
3781 /* Scan argv twice. Here, the first time, just count how many switches
3782 there will be in their vector, and how many input files in theirs.
3783 Here we also parse the switches that cc itself uses (e.g. -v). */
3785 for (i = 1; i < argc; i++)
3787 if (! strcmp (argv[i], "-dumpspecs"))
3789 struct spec_list *sl;
3791 for (sl = specs; sl; sl = sl->next)
3792 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3793 if (link_command_spec)
3794 printf ("*link_command:\n%s\n\n", link_command_spec);
3797 else if (! strcmp (argv[i], "-dumpversion"))
3799 printf ("%s\n", spec_version);
3802 else if (! strcmp (argv[i], "-dumpmachine"))
3804 printf ("%s\n", spec_machine);
3807 else if (strcmp (argv[i], "-fversion") == 0)
3809 /* translate_options () has turned --version into -fversion. */
3812 /* We will be passing a dummy file on to the sub-processes. */
3816 /* CPP driver cannot obtain switch from cc1_options. */
3818 add_preprocessor_option ("--version", strlen ("--version"));
3819 add_assembler_option ("--version", strlen ("--version"));
3820 add_linker_option ("--version", strlen ("--version"));
3822 else if (strcmp (argv[i], "-fhelp") == 0)
3824 /* translate_options () has turned --help into -fhelp. */
3825 print_help_list = 1;
3827 /* We will be passing a dummy file on to the sub-processes. */
3831 /* CPP driver cannot obtain switch from cc1_options. */
3833 add_preprocessor_option ("--help", 6);
3834 add_assembler_option ("--help", 6);
3835 add_linker_option ("--help", 6);
3837 else if (strncmp (argv[i], "-fhelp=", 7) == 0)
3839 /* translate_options () has turned --help into -fhelp. */
3840 print_subprocess_help = 2;
3842 /* We will be passing a dummy file on to the sub-processes. */
3846 else if (strcmp (argv[i], "-ftarget-help") == 0)
3848 /* translate_options() has turned --target-help into -ftarget-help. */
3849 print_subprocess_help = 1;
3851 /* We will be passing a dummy file on to the sub-processes. */
3855 /* CPP driver cannot obtain switch from cc1_options. */
3857 add_preprocessor_option ("--target-help", 13);
3858 add_assembler_option ("--target-help", 13);
3859 add_linker_option ("--target-help", 13);
3861 else if (! strcmp (argv[i], "-pass-exit-codes"))
3863 pass_exit_codes = 1;
3866 else if (! strcmp (argv[i], "-print-search-dirs"))
3867 print_search_dirs = 1;
3868 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3869 print_file_name = "libgcc.a";
3870 else if (! strncmp (argv[i], "-print-file-name=", 17))
3871 print_file_name = argv[i] + 17;
3872 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3873 print_prog_name = argv[i] + 17;
3874 else if (! strcmp (argv[i], "-print-multi-lib"))
3875 print_multi_lib = 1;
3876 else if (! strcmp (argv[i], "-print-multi-directory"))
3877 print_multi_directory = 1;
3878 else if (! strcmp (argv[i], "-print-sysroot"))
3880 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3881 print_multi_os_directory = 1;
3882 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
3883 print_sysroot_headers_suffix = 1;
3884 else if (! strcmp (argv[i], "-fcompare-debug-second"))
3886 compare_debug_second = 1;
3889 else if (! strcmp (argv[i], "-fno-compare-debug"))
3891 argv[i] = "-fcompare-debug=";
3892 goto compare_debug_with_arg;
3894 else if (! strcmp (argv[i], "-fcompare-debug"))
3896 argv[i] = "-fcompare-debug=-gtoggle";
3897 goto compare_debug_with_arg;
3899 #define OPT "-fcompare-debug="
3900 else if (! strncmp (argv[i], OPT, sizeof (OPT) - 1))
3903 compare_debug_with_arg:
3904 opt = argv[i] + sizeof (OPT) - 1;
3910 if (compare_debug < 0)
3911 compare_debug_opt = NULL;
3913 compare_debug_opt = opt;
3916 else if (! strncmp (argv[i], "-Wa,", 4))
3919 /* Pass the rest of this option to the assembler. */
3921 /* Split the argument at commas. */
3923 for (j = 4; argv[i][j]; j++)
3924 if (argv[i][j] == ',')
3926 add_assembler_option (argv[i] + prev, j - prev);
3930 /* Record the part after the last comma. */
3931 add_assembler_option (argv[i] + prev, j - prev);
3933 else if (! strncmp (argv[i], "-Wp,", 4))
3936 /* Pass the rest of this option to the preprocessor. */
3938 /* Split the argument at commas. */
3940 for (j = 4; argv[i][j]; j++)
3941 if (argv[i][j] == ',')
3943 add_preprocessor_option (argv[i] + prev, j - prev);
3947 /* Record the part after the last comma. */
3948 add_preprocessor_option (argv[i] + prev, j - prev);
3950 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3951 /* The +e options to the C++ front-end. */
3953 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3956 /* Split the argument at commas. */
3957 for (j = 3; argv[i][j]; j++)
3958 n_infiles += (argv[i][j] == ',');
3960 else if (strcmp (argv[i], "-Xlinker") == 0)
3963 fatal ("argument to '-Xlinker' is missing");
3968 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3971 fatal ("argument to '-Xpreprocessor' is missing");
3973 add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
3975 else if (strcmp (argv[i], "-Xassembler") == 0)
3978 fatal ("argument to '-Xassembler' is missing");
3980 add_assembler_option (argv[i+1], strlen (argv[i+1]));
3982 else if (strcmp (argv[i], "-l") == 0)
3985 fatal ("argument to '-l' is missing");
3990 else if (strncmp (argv[i], "-l", 2) == 0)
3992 else if (strcmp (argv[i], "-save-temps") == 0)
3994 save_temps_flag = SAVE_TEMPS_CWD;
3997 else if (strncmp (argv[i], "-save-temps=", 12) == 0)
4000 if (strcmp (argv[i]+12, "cwd") == 0)
4001 save_temps_flag = SAVE_TEMPS_CWD;
4002 else if (strcmp (argv[i]+12, "obj") == 0
4003 || strcmp (argv[i]+12, "object") == 0)
4004 save_temps_flag = SAVE_TEMPS_OBJ;
4006 fatal ("'%s' is an unknown -save-temps option", argv[i]);
4008 else if (strcmp (argv[i], "-no-canonical-prefixes") == 0)
4009 /* Already handled as a special case, so ignored here. */
4011 else if (strcmp (argv[i], "-combine") == 0)
4016 else if (strcmp (argv[i], "-specs") == 0)
4018 struct user_specs *user = XNEW (struct user_specs);
4020 fatal ("argument to '-specs' is missing");
4022 user->next = (struct user_specs *) 0;
4023 user->filename = argv[i];
4024 if (user_specs_tail)
4025 user_specs_tail->next = user;
4027 user_specs_head = user;
4028 user_specs_tail = user;
4030 else if (strncmp (argv[i], "-specs=", 7) == 0)
4032 struct user_specs *user = XNEW (struct user_specs);
4033 if (strlen (argv[i]) == 7)
4034 fatal ("argument to '-specs=' is missing");
4036 user->next = (struct user_specs *) 0;
4037 user->filename = argv[i] + 7;
4038 if (user_specs_tail)
4039 user_specs_tail->next = user;
4041 user_specs_head = user;
4042 user_specs_tail = user;
4044 else if (strcmp (argv[i], "-time") == 0)
4046 else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
4048 if (report_times_to_file)
4049 fclose (report_times_to_file);
4050 report_times_to_file = fopen (argv[i] + sizeof ("-time=") - 1, "a");
4052 else if (strcmp (argv[i], "-pipe") == 0)
4054 /* -pipe has to go into the switches array as well as
4059 else if (strcmp (argv[i], "-wrapper") == 0)
4062 fatal ("argument to '-wrapper' is missing");
4064 wrapper_string = argv[i];
4068 else if (strcmp (argv[i], "-###") == 0)
4070 /* This is similar to -v except that there is no execution
4071 of the commands and the echoed arguments are quoted. It
4072 is intended for use in shell scripts to capture the
4073 driver-generated command line. */
4074 verbose_only_flag++;
4077 else if (argv[i][0] == '-' && argv[i][1] != 0)
4079 const char *p = &argv[i][1];
4085 if (p[1] && NULL == strchr (argv[i] + 2, '-'))
4090 fatal ("'-%c' must come at the start of the command line", c);
4098 if (p[1] == 0 && i + 1 == argc)
4099 fatal ("argument to '-B' is missing");
4105 len = strlen (value);
4107 /* Catch the case where the user has forgotten to append a
4108 directory separator to the path. Note, they may be using
4109 -B to add an executable name prefix, eg "i386-elf-", in
4110 order to distinguish between multiple installations of
4111 GCC in the same directory. Hence we must check to see
4112 if appending a directory separator actually makes a
4113 valid directory name. */
4114 if (! IS_DIR_SEPARATOR (value [len - 1])
4115 && is_directory (value, false))
4117 char *tmp = XNEWVEC (char, len + 2);
4118 strcpy (tmp, value);
4119 tmp[len] = DIR_SEPARATOR;
4124 add_prefix (&exec_prefixes, value, NULL,
4125 PREFIX_PRIORITY_B_OPT, 0, 0);
4126 add_prefix (&startfile_prefixes, value, NULL,
4127 PREFIX_PRIORITY_B_OPT, 0, 0);
4128 add_prefix (&include_prefixes, value, NULL,
4129 PREFIX_PRIORITY_B_OPT, 0, 0);
4134 case 'v': /* Print our subcommands and print versions. */
4136 /* If they do anything other than exactly `-v', don't set
4137 verbose_flag; rather, continue on to give the error. */
4156 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
4161 /* Forward scan, just in case -S, -E or -c is specified
4168 if (argv[j][0] == '-')
4170 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
4176 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
4177 j += skip - (argv[j][2] != 0);
4178 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
4185 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4187 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
4189 argv[i] = convert_filename (argv[i], ! have_c, 0);
4191 /* Save the output name in case -save-temps=obj was used. */
4192 if ((p[1] == 0) && argv[i + 1])
4193 save_temps_prefix = xstrdup(argv[i + 1]);
4195 save_temps_prefix = xstrdup(argv[i] + 1);
4201 #ifdef MODIFY_TARGET_NAME
4202 is_modify_target_name = 0;
4204 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4205 if (! strcmp (argv[i], modify_target[j].sw))
4207 char *new_name = XNEWVEC (char, strlen (modify_target[j].str)
4208 + strlen (spec_machine));
4211 int made_addition = 0;
4213 is_modify_target_name = 1;
4214 for (p = spec_machine, q = new_name; *p != 0; )
4216 if (modify_target[j].add_del == DELETE
4217 && (! strncmp (q, modify_target[j].str,
4218 strlen (modify_target[j].str))))
4219 p += strlen (modify_target[j].str);
4220 else if (modify_target[j].add_del == ADD
4221 && ! made_addition && *p == '-')
4223 for (r = modify_target[j].str; *r != 0; )
4231 spec_machine = new_name;
4234 if (is_modify_target_name)
4240 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
4241 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
4242 else if (WORD_SWITCH_TAKES_ARG (p))
4243 i += WORD_SWITCH_TAKES_ARG (p);
4253 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4254 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4255 if (save_temps_flag == SAVE_TEMPS_OBJ && save_temps_prefix != NULL)
4257 save_temps_length = strlen (save_temps_prefix);
4258 temp = strrchr (lbasename (save_temps_prefix), '.');
4261 save_temps_length -= strlen (temp);
4262 save_temps_prefix[save_temps_length] = '\0';
4266 else if (save_temps_prefix != NULL)
4268 free (save_temps_prefix);
4269 save_temps_prefix = NULL;
4272 if (save_temps_flag && use_pipes)
4274 /* -save-temps overrides -pipe, so that temp files are produced */
4275 if (save_temps_flag)
4276 error ("warning: -pipe ignored because -save-temps specified");
4282 const char *gcd = getenv ("GCC_COMPARE_DEBUG");
4284 if (gcd && gcd[0] == '-')
4287 compare_debug_opt = gcd;
4290 else if (gcd && *gcd && strcmp (gcd, "0"))
4293 compare_debug_opt = "-gtoggle";
4297 else if (compare_debug < 0)
4300 gcc_assert (!compare_debug_opt);
4303 /* Set up the search paths. We add directories that we expect to
4304 contain GNU Toolchain components before directories specified by
4305 the machine description so that we will find GNU components (like
4306 the GNU assembler) before those of the host system. */
4308 /* If we don't know where the toolchain has been installed, use the
4309 configured-in locations. */
4310 if (!gcc_exec_prefix)
4313 add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
4314 PREFIX_PRIORITY_LAST, 1, 0);
4315 add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
4316 PREFIX_PRIORITY_LAST, 2, 0);
4317 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
4318 PREFIX_PRIORITY_LAST, 2, 0);
4320 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
4321 PREFIX_PRIORITY_LAST, 1, 0);
4324 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix));
4325 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
4326 dir_separator_str, NULL);
4328 /* Look for tools relative to the location from which the driver is
4329 running, or, if that is not available, the configured prefix. */
4331 = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
4332 spec_machine, dir_separator_str,
4333 spec_version, dir_separator_str, tooldir_prefix, NULL);
4335 add_prefix (&exec_prefixes,
4336 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
4337 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
4338 add_prefix (&startfile_prefixes,
4339 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
4340 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
4342 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4343 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4344 then consider it to relocate with the rest of the GCC installation
4345 if GCC_EXEC_PREFIX is set.
4346 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4347 if (target_system_root && gcc_exec_prefix)
4349 char *tmp_prefix = get_relative_prefix (argv[0],
4350 standard_bindir_prefix,
4351 target_system_root);
4352 if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
4354 target_system_root = tmp_prefix;
4355 target_system_root_changed = 1;
4360 /* More prefixes are enabled in main, after we read the specs file
4361 and determine whether this is cross-compilation or not. */
4363 /* Then create the space for the vectors and scan again. */
4365 switches = XNEWVEC (struct switchstr, n_switches + 1);
4366 infiles = XNEWVEC (struct infile, n_infiles + 1);
4369 last_language_n_infiles = -1;
4371 /* This, time, copy the text of each switch and store a pointer
4372 to the copy in the vector of switches.
4373 Store all the infiles in their vector. */
4375 for (i = 1; i < argc; i++)
4377 /* Just skip the switches that were handled by the preceding loop. */
4378 #ifdef MODIFY_TARGET_NAME
4379 is_modify_target_name = 0;
4381 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4382 if (! strcmp (argv[i], modify_target[j].sw))
4383 is_modify_target_name = 1;
4385 if (is_modify_target_name)
4389 if (! strncmp (argv[i], "-Wa,", 4))
4391 else if (! strncmp (argv[i], "-Wp,", 4))
4393 else if (! strcmp (argv[i], "-no-canonical-prefixes"))
4395 else if (! strcmp (argv[i], "-pass-exit-codes"))
4397 else if (! strcmp (argv[i], "-print-search-dirs"))
4399 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
4401 else if (! strncmp (argv[i], "-print-file-name=", 17))
4403 else if (! strncmp (argv[i], "-print-prog-name=", 17))
4405 else if (! strcmp (argv[i], "-print-multi-lib"))
4407 else if (! strcmp (argv[i], "-print-multi-directory"))
4409 else if (! strcmp (argv[i], "-print-sysroot"))
4411 else if (! strcmp (argv[i], "-print-multi-os-directory"))
4413 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
4415 else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
4417 target_system_root = argv[i] + strlen ("--sysroot=");
4418 target_system_root_changed = 1;
4420 else if (argv[i][0] == '+' && argv[i][1] == 'e')
4422 /* Compensate for the +e options to the C++ front-end;
4423 they're there simply for cfront call-compatibility. We do
4424 some magic in default_compilers to pass them down properly.
4425 Note we deliberately start at the `+' here, to avoid passing
4426 -e0 or -e1 down into the linker. */
4427 switches[n_switches].part1 = &argv[i][0];
4428 switches[n_switches].args = 0;
4429 switches[n_switches].live_cond = 0;
4430 switches[n_switches].validated = 0;
4433 else if (strncmp (argv[i], "-Wl,", 4) == 0)
4436 /* Split the argument at commas. */
4438 for (j = 4; argv[i][j]; j++)
4439 if (argv[i][j] == ',')
4441 infiles[n_infiles].language = "*";
4442 infiles[n_infiles++].name
4443 = save_string (argv[i] + prev, j - prev);
4446 /* Record the part after the last comma. */
4447 infiles[n_infiles].language = "*";
4448 infiles[n_infiles++].name = argv[i] + prev;
4450 else if (strcmp (argv[i], "-Xlinker") == 0)
4452 infiles[n_infiles].language = "*";
4453 infiles[n_infiles++].name = argv[++i];
4455 /* Xassembler and Xpreprocessor were already handled in the first argv
4456 scan, so all we need to do here is ignore them and their argument. */
4457 else if (strcmp (argv[i], "-Xassembler") == 0)
4459 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
4461 else if (strcmp (argv[i], "-l") == 0)
4462 { /* POSIX allows separation of -l and the lib arg;
4463 canonicalize by concatenating -l with its arg */
4464 infiles[n_infiles].language = "*";
4465 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
4467 else if (strncmp (argv[i], "-l", 2) == 0)
4469 infiles[n_infiles].language = "*";
4470 infiles[n_infiles++].name = argv[i];
4472 else if (strcmp (argv[i], "-wrapper") == 0)
4474 else if (strcmp (argv[i], "-specs") == 0)
4476 else if (strncmp (argv[i], "-specs=", 7) == 0)
4478 else if (strcmp (argv[i], "-time") == 0)
4480 else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
4482 else if (strcmp (argv[i], "-###") == 0)
4484 else if (argv[i][0] == '-' && argv[i][1] != 0)
4486 const char *p = &argv[i][1];
4491 if (p[1] == 0 && i + 1 == argc)
4492 fatal ("argument to '-x' is missing");
4494 spec_lang = argv[++i];
4497 if (! strcmp (spec_lang, "none"))
4498 /* Suppress the warning if -xnone comes after the last input
4499 file, because alternate command interfaces like g++ might
4500 find it useful to place -xnone after each input file. */
4503 last_language_n_infiles = n_infiles;
4506 switches[n_switches].part1 = p;
4507 /* Deal with option arguments in separate argv elements. */
4508 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4509 || WORD_SWITCH_TAKES_ARG (p))
4512 int n_args = WORD_SWITCH_TAKES_ARG (p);
4516 /* Count only the option arguments in separate argv elements. */
4517 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4519 if (i + n_args >= argc)
4520 fatal ("argument to '-%s' is missing", p);
4521 switches[n_switches].args
4522 = XNEWVEC (const char *, n_args + 1);
4524 switches[n_switches].args[j++] = argv[++i];
4525 /* Null-terminate the vector. */
4526 switches[n_switches].args[j] = 0;
4528 else if (strchr (switches_need_spaces, c))
4530 /* On some systems, ld cannot handle some options without
4531 a space. So split the option from its argument. */
4532 char *part1 = XNEWVEC (char, 2);
4536 switches[n_switches].part1 = part1;
4537 switches[n_switches].args = XNEWVEC (const char *, 2);
4538 switches[n_switches].args[0] = xstrdup (p+1);
4539 switches[n_switches].args[1] = 0;
4542 switches[n_switches].args = 0;
4544 switches[n_switches].live_cond = 0;
4545 switches[n_switches].validated = 0;
4546 switches[n_switches].ordering = 0;
4547 /* These are always valid, since gcc.c itself understands the
4548 first four and gfortranspec.c understands -static-libgfortran. */
4549 if (!strcmp (p, "save-temps")
4550 || !strcmp (p, "static-libgcc")
4551 || !strcmp (p, "shared-libgcc")
4552 || !strcmp (p, "pipe")
4553 || !strcmp (p, "static-libgfortran"))
4554 switches[n_switches].validated = 1;
4557 char ch = switches[n_switches].part1[0];
4559 switches[n_switches].validated = 1;
4565 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4566 argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
4569 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
4571 perror_with_name (argv[i]);
4576 infiles[n_infiles].language = spec_lang;
4577 infiles[n_infiles++].name = argv[i];
4582 if (n_infiles == last_language_n_infiles && spec_lang != 0)
4583 error ("warning: '-x %s' after last input file has no effect", spec_lang);
4585 if (compare_debug == 2 || compare_debug == 3)
4587 switches[n_switches].part1 = concat ("fcompare-debug=",
4590 switches[n_switches].args = 0;
4591 switches[n_switches].live_cond = 0;
4592 switches[n_switches].validated = 0;
4593 switches[n_switches].ordering = 0;
4598 /* Ensure we only invoke each subprocess once. */
4599 if (print_subprocess_help || print_help_list || print_version)
4603 /* Create a dummy input file, so that we can pass
4604 the help option on to the various sub-processes. */
4605 infiles[0].language = "c";
4606 infiles[0].name = "help-dummy";
4609 switches[n_switches].part1 = 0;
4610 infiles[n_infiles].name = 0;
4613 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4614 and place that in the environment. */
4617 set_collect_gcc_options (void)
4622 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4624 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4625 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4628 for (i = 0; (int) i < n_switches; i++)
4630 const char *const *args;
4633 obstack_grow (&collect_obstack, " ", 1);
4637 /* Ignore elided switches. */
4638 if ((switches[i].live_cond & SWITCH_IGNORE) != 0)
4641 obstack_grow (&collect_obstack, "'-", 2);
4642 q = switches[i].part1;
4643 while ((p = strchr (q, '\'')))
4645 obstack_grow (&collect_obstack, q, p - q);
4646 obstack_grow (&collect_obstack, "'\\''", 4);
4649 obstack_grow (&collect_obstack, q, strlen (q));
4650 obstack_grow (&collect_obstack, "'", 1);
4652 for (args = switches[i].args; args && *args; args++)
4654 obstack_grow (&collect_obstack, " '", 2);
4656 while ((p = strchr (q, '\'')))
4658 obstack_grow (&collect_obstack, q, p - q);
4659 obstack_grow (&collect_obstack, "'\\''", 4);
4662 obstack_grow (&collect_obstack, q, strlen (q));
4663 obstack_grow (&collect_obstack, "'", 1);
4666 obstack_grow (&collect_obstack, "\0", 1);
4667 xputenv (XOBFINISH (&collect_obstack, char *));
4670 /* Process a spec string, accumulating and running commands. */
4672 /* These variables describe the input file name.
4673 input_file_number is the index on outfiles of this file,
4674 so that the output file name can be stored for later use by %o.
4675 input_basename is the start of the part of the input file
4676 sans all directory names, and basename_length is the number
4677 of characters starting there excluding the suffix .c or whatever. */
4679 static const char *input_filename;
4680 static int input_file_number;
4681 size_t input_filename_length;
4682 static int basename_length;
4683 static int suffixed_basename_length;
4684 static const char *input_basename;
4685 static const char *input_suffix;
4686 #ifndef HOST_LACKS_INODE_NUMBERS
4687 static struct stat input_stat;
4689 static int input_stat_set;
4691 /* The compiler used to process the current input file. */
4692 static struct compiler *input_file_compiler;
4694 /* These are variables used within do_spec and do_spec_1. */
4696 /* Nonzero if an arg has been started and not yet terminated
4697 (with space, tab or newline). */
4698 static int arg_going;
4700 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4701 is a temporary file name. */
4702 static int delete_this_arg;
4704 /* Nonzero means %w has been seen; the next arg to be terminated
4705 is the output file name of this compilation. */
4706 static int this_is_output_file;
4708 /* Nonzero means %s has been seen; the next arg to be terminated
4709 is the name of a library file and we should try the standard
4710 search dirs for it. */
4711 static int this_is_library_file;
4713 /* Nonzero means %T has been seen; the next arg to be terminated
4714 is the name of a linker script and we should try all of the
4715 standard search dirs for it. If it is found insert a --script
4716 command line switch and then substitute the full path in place,
4717 otherwise generate an error message. */
4718 static int this_is_linker_script;
4720 /* Nonzero means that the input of this command is coming from a pipe. */
4721 static int input_from_pipe;
4723 /* Nonnull means substitute this for any suffix when outputting a switches
4725 static const char *suffix_subst;
4727 /* If there is an argument being accumulated, terminate it and store it. */
4730 end_going_arg (void)
4736 obstack_1grow (&obstack, 0);
4737 string = XOBFINISH (&obstack, const char *);
4738 if (this_is_library_file)
4739 string = find_file (string);
4740 if (this_is_linker_script)
4742 char * full_script_path = find_a_file (&startfile_prefixes, string, R_OK, true);
4744 if (full_script_path == NULL)
4746 error (_("unable to locate default linker script '%s' in the library search paths"), string);
4747 /* Script was not found on search path. */
4750 store_arg ("--script", false, false);
4751 string = full_script_path;
4753 store_arg (string, delete_this_arg, this_is_output_file);
4754 if (this_is_output_file)
4755 outfiles[input_file_number] = string;
4761 /* Parse the WRAPPER string which is a comma separated list of the command line
4762 and insert them into the beginning of argbuf. */
4765 insert_wrapper (const char *wrapper)
4769 char *buf = xstrdup (wrapper);
4778 while ((p = strchr (p, ',')) != NULL);
4780 if (argbuf_index + n >= argbuf_length)
4782 argbuf_length = argbuf_length * 2;
4783 while (argbuf_length < argbuf_index + n)
4785 argbuf = XRESIZEVEC (const char *, argbuf, argbuf_length);
4787 for (i = argbuf_index - 1; i >= 0; i--)
4788 argbuf[i + n] = argbuf[i];
4801 while ((p = strchr (p, ',')) != NULL);
4802 gcc_assert (i == n);
4806 /* Process the spec SPEC and run the commands specified therein.
4807 Returns 0 if the spec is successfully processed; -1 if failed. */
4810 do_spec (const char *spec)
4814 value = do_spec_2 (spec);
4816 /* Force out any unfinished command.
4817 If -pipe, this forces out the last command if it ended in `|'. */
4820 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4823 set_collect_gcc_options ();
4825 if (argbuf_index > 0)
4833 do_spec_2 (const char *spec)
4839 delete_this_arg = 0;
4840 this_is_output_file = 0;
4841 this_is_library_file = 0;
4842 this_is_linker_script = 0;
4843 input_from_pipe = 0;
4844 suffix_subst = NULL;
4846 result = do_spec_1 (spec, 0, NULL);
4854 /* Process the given spec string and add any new options to the end
4855 of the switches/n_switches array. */
4858 do_option_spec (const char *name, const char *spec)
4860 unsigned int i, value_count, value_len;
4861 const char *p, *q, *value;
4862 char *tmp_spec, *tmp_spec_p;
4864 if (configure_default_options[0].name == NULL)
4867 for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
4868 if (strcmp (configure_default_options[i].name, name) == 0)
4870 if (i == ARRAY_SIZE (configure_default_options))
4873 value = configure_default_options[i].value;
4874 value_len = strlen (value);
4876 /* Compute the size of the final spec. */
4879 while ((p = strstr (p, "%(VALUE)")) != NULL)
4885 /* Replace each %(VALUE) by the specified value. */
4886 tmp_spec = (char *) alloca (strlen (spec) + 1
4887 + value_count * (value_len - strlen ("%(VALUE)")));
4888 tmp_spec_p = tmp_spec;
4890 while ((p = strstr (q, "%(VALUE)")) != NULL)
4892 memcpy (tmp_spec_p, q, p - q);
4893 tmp_spec_p = tmp_spec_p + (p - q);
4894 memcpy (tmp_spec_p, value, value_len);
4895 tmp_spec_p += value_len;
4896 q = p + strlen ("%(VALUE)");
4898 strcpy (tmp_spec_p, q);
4900 do_self_spec (tmp_spec);
4903 /* Process the given spec string and add any new options to the end
4904 of the switches/n_switches array. */
4907 do_self_spec (const char *spec)
4910 do_spec_1 (" ", 0, NULL);
4912 if (argbuf_index > 0)
4916 switches = XRESIZEVEC (struct switchstr, switches,
4917 n_switches + argbuf_index + 1);
4919 for (i = 0; i < argbuf_index; i++)
4921 struct switchstr *sw;
4922 const char *p = argbuf[i];
4925 /* Each switch should start with '-'. */
4927 fatal ("switch '%s' does not start with '-'", argbuf[i]);
4932 sw = &switches[n_switches++];
4938 /* Deal with option arguments in separate argv elements. */
4939 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4940 || WORD_SWITCH_TAKES_ARG (p))
4943 int n_args = WORD_SWITCH_TAKES_ARG (p);
4947 /* Count only the option arguments in separate argv elements. */
4948 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4950 if (i + n_args >= argbuf_index)
4951 fatal ("argument to '-%s' is missing", p);
4953 = XNEWVEC (const char *, n_args + 1);
4955 sw->args[j++] = argbuf[++i];
4956 /* Null-terminate the vector. */
4959 else if (strchr (switches_need_spaces, c))
4961 /* On some systems, ld cannot handle some options without
4962 a space. So split the option from its argument. */
4963 char *part1 = XNEWVEC (char, 2);
4968 sw->args = XNEWVEC (const char *, 2);
4969 sw->args[0] = xstrdup (p+1);
4976 switches[n_switches].part1 = 0;
4980 /* Callback for processing %D and %I specs. */
4982 struct spec_path_info {
4987 bool separate_options;
4991 spec_path (char *path, void *data)
4993 struct spec_path_info *info = (struct spec_path_info *) data;
4997 if (info->omit_relative && !IS_ABSOLUTE_PATH (path))
5000 if (info->append_len != 0)
5002 len = strlen (path);
5003 memcpy (path + len, info->append, info->append_len + 1);
5006 if (!is_directory (path, true))
5009 do_spec_1 (info->option, 1, NULL);
5010 if (info->separate_options)
5011 do_spec_1 (" ", 0, NULL);
5013 if (info->append_len == 0)
5015 len = strlen (path);
5016 save = path[len - 1];
5017 if (IS_DIR_SEPARATOR (path[len - 1]))
5018 path[len - 1] = '\0';
5021 do_spec_1 (path, 1, NULL);
5022 do_spec_1 (" ", 0, NULL);
5024 /* Must not damage the original path. */
5025 if (info->append_len == 0)
5026 path[len - 1] = save;
5031 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
5035 create_at_file (char **argv)
5037 char *temp_file = make_temp_file ("");
5038 char *at_argument = concat ("@", temp_file, NULL);
5039 FILE *f = fopen (temp_file, "w");
5043 fatal ("could not open temporary response file %s",
5046 status = writeargv (argv, f);
5049 fatal ("could not write to temporary response file %s",
5052 status = fclose (f);
5055 fatal ("could not close temporary response file %s",
5058 store_arg (at_argument, 0, 0);
5060 record_temp_file (temp_file, !save_temps_flag, !save_temps_flag);
5063 /* True if we should compile INFILE. */
5066 compile_input_file_p (struct infile *infile)
5068 if ((!infile->language) || (infile->language[0] != '*'))
5069 if (infile->incompiler == input_file_compiler)
5074 /* Process the sub-spec SPEC as a portion of a larger spec.
5075 This is like processing a whole spec except that we do
5076 not initialize at the beginning and we do not supply a
5077 newline by default at the end.
5078 INSWITCH nonzero means don't process %-sequences in SPEC;
5079 in this case, % is treated as an ordinary character.
5080 This is used while substituting switches.
5081 INSWITCH nonzero also causes SPC not to terminate an argument.
5083 Value is zero unless a line was finished
5084 and the command on that line reported an error. */
5087 do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
5089 const char *p = spec;
5095 /* If substituting a switch, treat all chars like letters.
5096 Otherwise, NL, SPC, TAB and % are special. */
5097 switch (inswitch ? 'a' : c)
5102 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
5104 /* A `|' before the newline means use a pipe here,
5105 but only if -pipe was specified.
5106 Otherwise, execute now and don't pass the `|' as an arg. */
5109 input_from_pipe = 1;
5116 set_collect_gcc_options ();
5118 if (argbuf_index > 0)
5124 /* Reinitialize for a new command, and for a new argument. */
5127 delete_this_arg = 0;
5128 this_is_output_file = 0;
5129 this_is_library_file = 0;
5130 this_is_linker_script = 0;
5131 input_from_pipe = 0;
5138 obstack_1grow (&obstack, c);
5146 /* Reinitialize for a new argument. */
5147 delete_this_arg = 0;
5148 this_is_output_file = 0;
5149 this_is_library_file = 0;
5150 this_is_linker_script = 0;
5157 fatal ("spec '%s' invalid", spec);
5160 if (save_temps_length)
5161 obstack_grow (&obstack, save_temps_prefix, save_temps_length);
5163 obstack_grow (&obstack, input_basename, basename_length);
5164 if (compare_debug < 0)
5165 obstack_grow (&obstack, ".gk", 3);
5170 if (save_temps_length)
5171 obstack_grow (&obstack, save_temps_prefix, save_temps_length);
5173 obstack_grow (&obstack, input_basename, suffixed_basename_length);
5174 if (compare_debug < 0)
5175 obstack_grow (&obstack, ".gk", 3);
5180 delete_this_arg = 2;
5183 /* Dump out the directories specified with LIBRARY_PATH,
5184 followed by the absolute directories
5185 that we search for startfiles. */
5188 struct spec_path_info info;
5191 info.append_len = 0;
5192 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5193 /* Used on systems which record the specified -L dirs
5194 and use them to search for dynamic linking.
5195 Relative directories always come from -B,
5196 and it is better not to use them for searching
5197 at run time. In particular, stage1 loses. */
5198 info.omit_relative = true;
5200 info.omit_relative = false;
5202 info.separate_options = false;
5204 for_each_path (&startfile_prefixes, true, 0, spec_path, &info);
5209 /* %efoo means report an error with `foo' as error message
5210 and don't execute any more commands for this file. */
5214 while (*p != 0 && *p != '\n')
5216 buf = (char *) alloca (p - q + 1);
5217 strncpy (buf, q, p - q);
5224 /* %nfoo means report a notice with `foo' on stderr. */
5228 while (*p != 0 && *p != '\n')
5230 buf = (char *) alloca (p - q + 1);
5231 strncpy (buf, q, p - q);
5233 notice ("%s\n", buf);
5243 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5244 defined, and it is not a directory, and it is
5245 writable, use it. Otherwise, treat this like any
5246 other temporary file. */
5248 if ((!save_temps_flag)
5249 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
5250 && (access (HOST_BIT_BUCKET, W_OK) == 0))
5252 obstack_grow (&obstack, HOST_BIT_BUCKET,
5253 strlen (HOST_BIT_BUCKET));
5254 delete_this_arg = 0;
5259 goto create_temp_file;
5263 obstack_1grow (&obstack, '-');
5264 delete_this_arg = 0;
5267 /* consume suffix */
5268 while (*p == '.' || ISALNUM ((unsigned char) *p))
5270 if (p[0] == '%' && p[1] == 'O')
5275 goto create_temp_file;
5279 /* consume suffix */
5280 while (*p == '.' || ISALNUM ((unsigned char) *p))
5282 if (p[0] == '%' && p[1] == 'O')
5287 goto create_temp_file;
5293 struct temp_name *t;
5295 const char *suffix = p;
5296 char *saved_suffix = NULL;
5298 while (*p == '.' || ISALNUM ((unsigned char) *p))
5300 suffix_length = p - suffix;
5301 if (p[0] == '%' && p[1] == 'O')
5304 /* We don't support extra suffix characters after %O. */
5305 if (*p == '.' || ISALNUM ((unsigned char) *p))
5306 fatal ("spec '%s' has invalid '%%0%c'", spec, *p);
5307 if (suffix_length == 0)
5308 suffix = TARGET_OBJECT_SUFFIX;
5312 = XNEWVEC (char, suffix_length
5313 + strlen (TARGET_OBJECT_SUFFIX));
5314 strncpy (saved_suffix, suffix, suffix_length);
5315 strcpy (saved_suffix + suffix_length,
5316 TARGET_OBJECT_SUFFIX);
5318 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
5321 if (compare_debug < 0)
5323 suffix = concat (".gk", suffix, NULL);
5327 /* If -save-temps=obj and -o were specified, use that for the
5329 if (save_temps_length)
5332 temp_filename_length
5333 = save_temps_length + suffix_length + 1;
5334 tmp = (char *) alloca (temp_filename_length);
5335 memcpy (tmp, save_temps_prefix, save_temps_length);
5336 memcpy (tmp + save_temps_length, suffix, suffix_length);
5337 tmp[save_temps_length + suffix_length] = '\0';
5338 temp_filename = save_string (tmp,
5339 temp_filename_length + 1);
5340 obstack_grow (&obstack, temp_filename,
5341 temp_filename_length);
5343 delete_this_arg = 0;
5347 /* If the input_filename has the same suffix specified
5348 for the %g, %u, or %U, and -save-temps is specified,
5349 we could end up using that file as an intermediate
5350 thus clobbering the user's source file (.e.g.,
5351 gcc -save-temps foo.s would clobber foo.s with the
5352 output of cpp0). So check for this condition and
5353 generate a temp file as the intermediate. */
5355 if (save_temps_flag)
5358 temp_filename_length = basename_length + suffix_length + 1;
5359 tmp = (char *) alloca (temp_filename_length);
5360 memcpy (tmp, input_basename, basename_length);
5361 memcpy (tmp + basename_length, suffix, suffix_length);
5362 tmp[basename_length + suffix_length] = '\0';
5363 temp_filename = tmp;
5365 if (strcmp (temp_filename, input_filename) != 0)
5367 #ifndef HOST_LACKS_INODE_NUMBERS
5368 struct stat st_temp;
5370 /* Note, set_input() resets input_stat_set to 0. */
5371 if (input_stat_set == 0)
5373 input_stat_set = stat (input_filename, &input_stat);
5374 if (input_stat_set >= 0)
5378 /* If we have the stat for the input_filename
5379 and we can do the stat for the temp_filename
5380 then the they could still refer to the same
5381 file if st_dev/st_ino's are the same. */
5382 if (input_stat_set != 1
5383 || stat (temp_filename, &st_temp) < 0
5384 || input_stat.st_dev != st_temp.st_dev
5385 || input_stat.st_ino != st_temp.st_ino)
5387 /* Just compare canonical pathnames. */
5388 char* input_realname = lrealpath (input_filename);
5389 char* temp_realname = lrealpath (temp_filename);
5390 bool files_differ = strcmp (input_realname, temp_realname);
5391 free (input_realname);
5392 free (temp_realname);
5396 temp_filename = save_string (temp_filename,
5397 temp_filename_length + 1);
5398 obstack_grow (&obstack, temp_filename,
5399 temp_filename_length);
5401 delete_this_arg = 0;
5407 /* See if we already have an association of %g/%u/%U and
5409 for (t = temp_names; t; t = t->next)
5410 if (t->length == suffix_length
5411 && strncmp (t->suffix, suffix, suffix_length) == 0
5412 && t->unique == (c == 'u' || c == 'U' || c == 'j'))
5415 /* Make a new association if needed. %u and %j
5417 if (t == 0 || c == 'u' || c == 'j')
5421 t = XNEW (struct temp_name);
5422 t->next = temp_names;
5425 t->length = suffix_length;
5428 t->suffix = saved_suffix;
5429 saved_suffix = NULL;
5432 t->suffix = save_string (suffix, suffix_length);
5433 t->unique = (c == 'u' || c == 'U' || c == 'j');
5434 temp_filename = make_temp_file (t->suffix);
5435 temp_filename_length = strlen (temp_filename);
5436 t->filename = temp_filename;
5437 t->filename_length = temp_filename_length;
5441 free (saved_suffix);
5443 obstack_grow (&obstack, t->filename, t->filename_length);
5444 delete_this_arg = 1;
5452 if (at_file_supplied)
5454 /* We are going to expand `%i' to `@FILE', where FILE
5455 is a newly-created temporary filename. The filenames
5456 that would usually be expanded in place of %o will be
5457 written to the temporary file. */
5462 for (i = 0; i < n_infiles; i++)
5463 if (compile_input_file_p (&infiles[i]))
5466 argv = (char **) alloca (sizeof (char *) * (n_files + 1));
5468 /* Copy the strings over. */
5469 for (i = 0, j = 0; i < n_infiles; i++)
5470 if (compile_input_file_p (&infiles[i]))
5472 argv[j] = CONST_CAST (char *, infiles[i].name);
5473 infiles[i].compiled = true;
5478 create_at_file (argv);
5481 for (i = 0; (int) i < n_infiles; i++)
5482 if (compile_input_file_p (&infiles[i]))
5484 store_arg (infiles[i].name, 0, 0);
5485 infiles[i].compiled = true;
5490 obstack_grow (&obstack, input_filename, input_filename_length);
5497 struct spec_path_info info;
5501 do_spec_1 ("-imultilib", 1, NULL);
5502 /* Make this a separate argument. */
5503 do_spec_1 (" ", 0, NULL);
5504 do_spec_1 (multilib_dir, 1, NULL);
5505 do_spec_1 (" ", 0, NULL);
5508 if (gcc_exec_prefix)
5510 do_spec_1 ("-iprefix", 1, NULL);
5511 /* Make this a separate argument. */
5512 do_spec_1 (" ", 0, NULL);
5513 do_spec_1 (gcc_exec_prefix, 1, NULL);
5514 do_spec_1 (" ", 0, NULL);
5517 if (target_system_root_changed ||
5518 (target_system_root && target_sysroot_hdrs_suffix))
5520 do_spec_1 ("-isysroot", 1, NULL);
5521 /* Make this a separate argument. */
5522 do_spec_1 (" ", 0, NULL);
5523 do_spec_1 (target_system_root, 1, NULL);
5524 if (target_sysroot_hdrs_suffix)
5525 do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
5526 do_spec_1 (" ", 0, NULL);
5529 info.option = "-isystem";
5530 info.append = "include";
5531 info.append_len = strlen (info.append);
5532 info.omit_relative = false;
5533 info.separate_options = true;
5535 for_each_path (&include_prefixes, false, info.append_len,
5538 info.append = "include-fixed";
5539 if (*sysroot_hdrs_suffix_spec)
5540 info.append = concat (info.append, dir_separator_str,
5541 multilib_dir, NULL);
5542 info.append_len = strlen (info.append);
5543 for_each_path (&include_prefixes, false, info.append_len,
5550 int max = n_infiles;
5551 max += lang_specific_extra_outfiles;
5553 if (HAVE_GNU_LD && at_file_supplied)
5555 /* We are going to expand `%o' to `@FILE', where FILE
5556 is a newly-created temporary filename. The filenames
5557 that would usually be expanded in place of %o will be
5558 written to the temporary file. */
5563 /* Convert OUTFILES into a form suitable for writeargv. */
5565 /* Determine how many are non-NULL. */
5566 for (n_files = 0, i = 0; i < max; i++)
5567 n_files += outfiles[i] != NULL;
5569 argv = (char **) alloca (sizeof (char *) * (n_files + 1));
5571 /* Copy the strings over. */
5572 for (i = 0, j = 0; i < max; i++)
5575 argv[j] = CONST_CAST (char *, outfiles[i]);
5580 create_at_file (argv);
5583 for (i = 0; i < max; i++)
5585 store_arg (outfiles[i], 0, 0);
5590 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
5595 this_is_library_file = 1;
5599 this_is_linker_script = 1;
5603 outfiles[input_file_number] = NULL;
5607 this_is_output_file = 1;
5612 int cur_index = argbuf_index;
5613 /* Handle the {...} following the %W. */
5615 fatal ("spec '%s' has invalid '%%W%c", spec, *p);
5616 p = handle_braces (p + 1);
5620 /* If any args were output, mark the last one for deletion
5622 if (argbuf_index != cur_index)
5623 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
5627 /* %x{OPTION} records OPTION for %X to output. */
5633 /* Skip past the option value and make a copy. */
5635 fatal ("spec '%s' has invalid '%%x%c'", spec, *p);
5638 string = save_string (p1 + 1, p - p1 - 2);
5640 /* See if we already recorded this option. */
5641 for (i = 0; i < n_linker_options; i++)
5642 if (! strcmp (string, linker_options[i]))
5648 /* This option is new; add it. */
5649 add_linker_option (string, strlen (string));
5653 /* Dump out the options accumulated previously using %x. */
5655 for (i = 0; i < n_linker_options; i++)
5657 do_spec_1 (linker_options[i], 1, NULL);
5658 /* Make each accumulated option a separate argument. */
5659 do_spec_1 (" ", 0, NULL);
5663 /* Dump out the options accumulated previously using -Wa,. */
5665 for (i = 0; i < n_assembler_options; i++)
5667 do_spec_1 (assembler_options[i], 1, NULL);
5668 /* Make each accumulated option a separate argument. */
5669 do_spec_1 (" ", 0, NULL);
5673 /* Dump out the options accumulated previously using -Wp,. */
5675 for (i = 0; i < n_preprocessor_options; i++)
5677 do_spec_1 (preprocessor_options[i], 1, NULL);
5678 /* Make each accumulated option a separate argument. */
5679 do_spec_1 (" ", 0, NULL);
5683 /* Here are digits and numbers that just process
5684 a certain constant string as a spec. */
5687 value = do_spec_1 (cc1_spec, 0, NULL);
5693 value = do_spec_1 (cc1plus_spec, 0, NULL);
5699 value = do_spec_1 (asm_spec, 0, NULL);
5705 value = do_spec_1 (asm_final_spec, 0, NULL);
5712 const char *const spec
5713 = (input_file_compiler->cpp_spec
5714 ? input_file_compiler->cpp_spec
5716 value = do_spec_1 (spec, 0, NULL);
5723 value = do_spec_1 (endfile_spec, 0, NULL);
5729 value = do_spec_1 (link_spec, 0, NULL);
5735 value = do_spec_1 (lib_spec, 0, NULL);
5741 value = do_spec_1 (libgcc_spec, 0, NULL);
5747 /* We assume there is a directory
5748 separator at the end of this string. */
5749 if (target_system_root)
5751 obstack_grow (&obstack, target_system_root,
5752 strlen (target_system_root));
5753 if (target_sysroot_suffix)
5754 obstack_grow (&obstack, target_sysroot_suffix,
5755 strlen (target_sysroot_suffix));
5760 value = do_spec_1 (startfile_spec, 0, NULL);
5765 /* Here we define characters other than letters and digits. */
5768 p = handle_braces (p);
5774 p = handle_spec_function (p);
5780 obstack_1grow (&obstack, '%');
5787 while (p[len] && p[len] != ' ' && p[len] != '%')
5789 suffix_subst = save_string (p - 1, len + 1);
5794 /* Henceforth ignore the option(s) matching the pattern
5799 int have_wildcard = 0;
5802 while (p[len] && p[len] != ' ' && p[len] != '\t')
5805 if (p[len-1] == '*')
5808 for (i = 0; i < n_switches; i++)
5809 if (!strncmp (switches[i].part1, p, len - have_wildcard)
5810 && (have_wildcard || switches[i].part1[len] == '\0'))
5812 switches[i].live_cond |= SWITCH_IGNORE;
5813 switches[i].validated = 1;
5821 if (soft_matched_part)
5823 do_spec_1 (soft_matched_part, 1, NULL);
5824 do_spec_1 (" ", 0, NULL);
5827 /* Catch the case where a spec string contains something like
5828 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5829 hand side of the :. */
5830 error ("spec failure: '%%*' has not been initialized by pattern match");
5833 /* Process a string found as the value of a spec given by name.
5834 This feature allows individual machine descriptions
5835 to add and use their own specs.
5836 %[...] modifies -D options the way %P does;
5837 %(...) uses the spec unmodified. */
5839 error ("warning: use of obsolete %%[ operator in specs");
5842 const char *name = p;
5843 struct spec_list *sl;
5846 /* The string after the S/P is the name of a spec that is to be
5848 while (*p && *p != ')' && *p != ']')
5851 /* See if it's in the list. */
5852 for (len = p - name, sl = specs; sl; sl = sl->next)
5853 if (sl->name_len == len && !strncmp (sl->name, name, len))
5855 name = *(sl->ptr_spec);
5857 notice ("Processing spec %c%s%c, which is '%s'\n",
5858 c, sl->name, (c == '(') ? ')' : ']', name);
5867 value = do_spec_1 (name, 0, NULL);
5873 char *x = (char *) alloca (strlen (name) * 2 + 1);
5875 const char *y = name;
5878 /* Copy all of NAME into BUF, but put __ after
5879 every -D and at the end of each arg. */
5882 if (! strncmp (y, "-D", 2))
5893 && (*y == ' ' || *y == '\t' || *y == '='
5894 || *y == '}' || *y == 0))
5907 value = do_spec_1 (buf, 0, NULL);
5913 /* Discard the closing paren or bracket. */
5920 error ("spec failure: unrecognized spec option '%c'", c);
5926 /* Backslash: treat next character as ordinary. */
5931 /* Ordinary character: put it into the current argument. */
5932 obstack_1grow (&obstack, c);
5936 /* End of string. If we are processing a spec function, we need to
5937 end any pending argument. */
5938 if (processing_spec_function)
5944 /* Look up a spec function. */
5946 static const struct spec_function *
5947 lookup_spec_function (const char *name)
5949 const struct spec_function *sf;
5951 for (sf = static_spec_functions; sf->name != NULL; sf++)
5952 if (strcmp (sf->name, name) == 0)
5958 /* Evaluate a spec function. */
5961 eval_spec_function (const char *func, const char *args)
5963 const struct spec_function *sf;
5964 const char *funcval;
5966 /* Saved spec processing context. */
5967 int save_argbuf_index;
5968 int save_argbuf_length;
5969 const char **save_argbuf;
5972 int save_delete_this_arg;
5973 int save_this_is_output_file;
5974 int save_this_is_library_file;
5975 int save_input_from_pipe;
5976 int save_this_is_linker_script;
5977 const char *save_suffix_subst;
5980 sf = lookup_spec_function (func);
5982 fatal ("unknown spec function '%s'", func);
5984 /* Push the spec processing context. */
5985 save_argbuf_index = argbuf_index;
5986 save_argbuf_length = argbuf_length;
5987 save_argbuf = argbuf;
5989 save_arg_going = arg_going;
5990 save_delete_this_arg = delete_this_arg;
5991 save_this_is_output_file = this_is_output_file;
5992 save_this_is_library_file = this_is_library_file;
5993 save_this_is_linker_script = this_is_linker_script;
5994 save_input_from_pipe = input_from_pipe;
5995 save_suffix_subst = suffix_subst;
5997 /* Create a new spec processing context, and build the function
6001 if (do_spec_2 (args) < 0)
6002 fatal ("error in args to spec function '%s'", func);
6004 /* argbuf_index is an index for the next argument to be inserted, and
6005 so contains the count of the args already inserted. */
6007 funcval = (*sf->func) (argbuf_index, argbuf);
6009 /* Pop the spec processing context. */
6010 argbuf_index = save_argbuf_index;
6011 argbuf_length = save_argbuf_length;
6013 argbuf = save_argbuf;
6015 arg_going = save_arg_going;
6016 delete_this_arg = save_delete_this_arg;
6017 this_is_output_file = save_this_is_output_file;
6018 this_is_library_file = save_this_is_library_file;
6019 this_is_linker_script = save_this_is_linker_script;
6020 input_from_pipe = save_input_from_pipe;
6021 suffix_subst = save_suffix_subst;
6026 /* Handle a spec function call of the form:
6030 ARGS is processed as a spec in a separate context and split into an
6031 argument vector in the normal fashion. The function returns a string
6032 containing a spec which we then process in the caller's context, or
6033 NULL if no processing is required. */
6036 handle_spec_function (const char *p)
6039 const char *endp, *funcval;
6042 processing_spec_function++;
6044 /* Get the function name. */
6045 for (endp = p; *endp != '\0'; endp++)
6047 if (*endp == '(') /* ) */
6049 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6050 if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
6051 fatal ("malformed spec function name");
6053 if (*endp != '(') /* ) */
6054 fatal ("no arguments for spec function");
6055 func = save_string (p, endp - p);
6058 /* Get the arguments. */
6059 for (count = 0; *endp != '\0'; endp++)
6068 else if (*endp == '(') /* ) */
6073 fatal ("malformed spec function arguments");
6074 args = save_string (p, endp - p);
6077 /* p now points to just past the end of the spec function expression. */
6079 funcval = eval_spec_function (func, args);
6080 if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
6086 processing_spec_function--;
6091 /* Inline subroutine of handle_braces. Returns true if the current
6092 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6094 input_suffix_matches (const char *atom, const char *end_atom)
6096 return (input_suffix
6097 && !strncmp (input_suffix, atom, end_atom - atom)
6098 && input_suffix[end_atom - atom] == '\0');
6101 /* Subroutine of handle_braces. Returns true if the current
6102 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6104 input_spec_matches (const char *atom, const char *end_atom)
6106 return (input_file_compiler
6107 && input_file_compiler->suffix
6108 && input_file_compiler->suffix[0] != '\0'
6109 && !strncmp (input_file_compiler->suffix + 1, atom,
6111 && input_file_compiler->suffix[end_atom - atom + 1] == '\0');
6114 /* Subroutine of handle_braces. Returns true if a switch
6115 matching the atom bracketed by ATOM and END_ATOM appeared on the
6118 switch_matches (const char *atom, const char *end_atom, int starred)
6121 int len = end_atom - atom;
6122 int plen = starred ? len : -1;
6124 for (i = 0; i < n_switches; i++)
6125 if (!strncmp (switches[i].part1, atom, len)
6126 && (starred || switches[i].part1[len] == '\0')
6127 && check_live_switch (i, plen))
6133 /* Inline subroutine of handle_braces. Mark all of the switches which
6134 match ATOM (extends to END_ATOM; STARRED indicates whether there
6135 was a star after the atom) for later processing. */
6137 mark_matching_switches (const char *atom, const char *end_atom, int starred)
6140 int len = end_atom - atom;
6141 int plen = starred ? len : -1;
6143 for (i = 0; i < n_switches; i++)
6144 if (!strncmp (switches[i].part1, atom, len)
6145 && (starred || switches[i].part1[len] == '\0')
6146 && check_live_switch (i, plen))
6147 switches[i].ordering = 1;
6150 /* Inline subroutine of handle_braces. Process all the currently
6151 marked switches through give_switch, and clear the marks. */
6153 process_marked_switches (void)
6157 for (i = 0; i < n_switches; i++)
6158 if (switches[i].ordering == 1)
6160 switches[i].ordering = 0;
6165 /* Handle a %{ ... } construct. P points just inside the leading {.
6166 Returns a pointer one past the end of the brace block, or 0
6167 if we call do_spec_1 and that returns -1. */
6170 handle_braces (const char *p)
6172 const char *atom, *end_atom;
6173 const char *d_atom = NULL, *d_end_atom = NULL;
6174 const char *orig = p;
6182 bool a_must_be_last = false;
6183 bool ordered_set = false;
6184 bool disjunct_set = false;
6185 bool disj_matched = false;
6186 bool disj_starred = true;
6187 bool n_way_choice = false;
6188 bool n_way_matched = false;
6190 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6197 /* Scan one "atom" (S in the description above of %{}, possibly
6198 with '!', '.', '@', ',', or '*' modifiers). */
6200 a_is_suffix = false;
6201 a_is_starred = false;
6202 a_is_negated = false;
6203 a_is_spectype = false;
6207 p++, a_is_negated = true;
6211 p++, a_is_suffix = true;
6213 p++, a_is_spectype = true;
6216 while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '='
6217 || *p == ',' || *p == '.' || *p == '@')
6222 p++, a_is_starred = 1;
6228 /* Substitute the switch(es) indicated by the current atom. */
6230 if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
6231 || a_is_spectype || atom == end_atom)
6234 mark_matching_switches (atom, end_atom, a_is_starred);
6237 process_marked_switches ();
6241 /* Substitute some text if the current atom appears as a switch
6243 disjunct_set = true;
6247 if (atom == end_atom)
6249 if (!n_way_choice || disj_matched || *p == '|'
6250 || a_is_negated || a_is_suffix || a_is_spectype
6254 /* An empty term may appear as the last choice of an
6255 N-way choice set; it means "otherwise". */
6256 a_must_be_last = true;
6257 disj_matched = !n_way_matched;
6258 disj_starred = false;
6262 if ((a_is_suffix || a_is_spectype) && a_is_starred)
6266 disj_starred = false;
6268 /* Don't bother testing this atom if we already have a
6270 if (!disj_matched && !n_way_matched)
6273 a_matched = input_suffix_matches (atom, end_atom);
6274 else if (a_is_spectype)
6275 a_matched = input_spec_matches (atom, end_atom);
6277 a_matched = switch_matches (atom, end_atom, a_is_starred);
6279 if (a_matched != a_is_negated)
6281 disj_matched = true;
6283 d_end_atom = end_atom;
6290 /* Found the body, that is, the text to substitute if the
6291 current disjunction matches. */
6292 p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
6293 disj_matched && !n_way_matched);
6297 /* If we have an N-way choice, reset state for the next
6301 n_way_choice = true;
6302 n_way_matched |= disj_matched;
6303 disj_matched = false;
6304 disj_starred = true;
6305 d_atom = d_end_atom = NULL;
6314 while (*p++ != '}');
6319 fatal ("braced spec '%s' is invalid at '%c'", orig, *p);
6324 /* Subroutine of handle_braces. Scan and process a brace substitution body
6325 (X in the description of %{} syntax). P points one past the colon;
6326 ATOM and END_ATOM bracket the first atom which was found to be true
6327 (present) in the current disjunction; STARRED indicates whether all
6328 the atoms in the current disjunction were starred (for syntax validation);
6329 MATCHED indicates whether the disjunction matched or not, and therefore
6330 whether or not the body is to be processed through do_spec_1 or just
6331 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6335 process_brace_body (const char *p, const char *atom, const char *end_atom,
6336 int starred, int matched)
6338 const char *body, *end_body;
6339 unsigned int nesting_level;
6340 bool have_subst = false;
6342 /* Locate the closing } or ;, honoring nested braces.
6343 Trim trailing whitespace. */
6352 if (!--nesting_level)
6355 else if (*p == ';' && nesting_level == 1)
6357 else if (*p == '%' && p[1] == '*' && nesting_level == 1)
6359 else if (*p == '\0')
6365 while (end_body[-1] == ' ' || end_body[-1] == '\t')
6368 if (have_subst && !starred)
6373 /* Copy the substitution body to permanent storage and execute it.
6374 If have_subst is false, this is a simple matter of running the
6375 body through do_spec_1... */
6376 char *string = save_string (body, end_body - body);
6379 if (do_spec_1 (string, 0, NULL) < 0)
6384 /* ... but if have_subst is true, we have to process the
6385 body once for each matching switch, with %* set to the
6386 variant part of the switch. */
6387 unsigned int hard_match_len = end_atom - atom;
6390 for (i = 0; i < n_switches; i++)
6391 if (!strncmp (switches[i].part1, atom, hard_match_len)
6392 && check_live_switch (i, hard_match_len))
6394 if (do_spec_1 (string, 0,
6395 &switches[i].part1[hard_match_len]) < 0)
6397 /* Pass any arguments this switch has. */
6399 suffix_subst = NULL;
6407 fatal ("braced spec body '%s' is invalid", body);
6410 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6411 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6412 spec, or -1 if either exact match or %* is used.
6414 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
6415 whose value does not begin with "no-" is obsoleted by the same value
6416 with the "no-", similarly for a switch with the "no-" prefix. */
6419 check_live_switch (int switchnum, int prefix_length)
6421 const char *name = switches[switchnum].part1;
6424 /* If we already processed this switch and determined if it was
6425 live or not, return our past determination. */
6426 if (switches[switchnum].live_cond != 0)
6427 return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0
6428 && (switches[switchnum].live_cond & SWITCH_FALSE) == 0
6429 && (switches[switchnum].live_cond & SWITCH_IGNORE) == 0);
6431 /* In the common case of {<at-most-one-letter>*}, a negating
6432 switch would always match, so ignore that case. We will just
6433 send the conflicting switches to the compiler phase. */
6434 if (prefix_length >= 0 && prefix_length <= 1)
6437 /* Now search for duplicate in a manner that depends on the name. */
6441 for (i = switchnum + 1; i < n_switches; i++)
6442 if (switches[i].part1[0] == 'O')
6444 switches[switchnum].validated = 1;
6445 switches[switchnum].live_cond = SWITCH_FALSE;
6450 case 'W': case 'f': case 'm':
6451 if (! strncmp (name + 1, "no-", 3))
6453 /* We have Xno-YYY, search for XYYY. */
6454 for (i = switchnum + 1; i < n_switches; i++)
6455 if (switches[i].part1[0] == name[0]
6456 && ! strcmp (&switches[i].part1[1], &name[4]))
6458 switches[switchnum].validated = 1;
6459 switches[switchnum].live_cond = SWITCH_FALSE;
6465 /* We have XYYY, search for Xno-YYY. */
6466 for (i = switchnum + 1; i < n_switches; i++)
6467 if (switches[i].part1[0] == name[0]
6468 && switches[i].part1[1] == 'n'
6469 && switches[i].part1[2] == 'o'
6470 && switches[i].part1[3] == '-'
6471 && !strcmp (&switches[i].part1[4], &name[1]))
6473 switches[switchnum].validated = 1;
6474 switches[switchnum].live_cond = SWITCH_FALSE;
6481 /* Otherwise the switch is live. */
6482 switches[switchnum].live_cond |= SWITCH_LIVE;
6486 /* Pass a switch to the current accumulating command
6487 in the same form that we received it.
6488 SWITCHNUM identifies the switch; it is an index into
6489 the vector of switches gcc received, which is `switches'.
6490 This cannot fail since it never finishes a command line.
6492 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6495 give_switch (int switchnum, int omit_first_word)
6497 if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0)
6500 if (!omit_first_word)
6502 do_spec_1 ("-", 0, NULL);
6503 do_spec_1 (switches[switchnum].part1, 1, NULL);
6506 if (switches[switchnum].args != 0)
6509 for (p = switches[switchnum].args; *p; p++)
6511 const char *arg = *p;
6513 do_spec_1 (" ", 0, NULL);
6516 unsigned length = strlen (arg);
6519 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
6520 if (arg[length] == '.')
6522 (CONST_CAST(char *, arg))[length] = 0;
6526 do_spec_1 (arg, 1, NULL);
6528 (CONST_CAST(char *, arg))[length] = '.';
6529 do_spec_1 (suffix_subst, 1, NULL);
6532 do_spec_1 (arg, 1, NULL);
6536 do_spec_1 (" ", 0, NULL);
6537 switches[switchnum].validated = 1;
6540 /* Search for a file named NAME trying various prefixes including the
6541 user's -B prefix and some standard ones.
6542 Return the absolute file name found. If nothing is found, return NAME. */
6545 find_file (const char *name)
6547 char *newname = find_a_file (&startfile_prefixes, name, R_OK, true);
6548 return newname ? newname : name;
6551 /* Determine whether a directory exists. If LINKER, return 0 for
6552 certain fixed names not needed by the linker. */
6555 is_directory (const char *path1, bool linker)
6562 /* Ensure the string ends with "/.". The resulting path will be a
6563 directory even if the given path is a symbolic link. */
6564 len1 = strlen (path1);
6565 path = (char *) alloca (3 + len1);
6566 memcpy (path, path1, len1);
6568 if (!IS_DIR_SEPARATOR (cp[-1]))
6569 *cp++ = DIR_SEPARATOR;
6573 /* Exclude directories that the linker is known to search. */
6575 && IS_DIR_SEPARATOR (path[0])
6577 && strncmp (path + 1, "lib", 3) == 0)
6579 && strncmp (path + 1, "usr", 3) == 0
6580 && IS_DIR_SEPARATOR (path[4])
6581 && strncmp (path + 5, "lib", 3) == 0)))
6584 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
6587 /* Set up the various global variables to indicate that we're processing
6588 the input file named FILENAME. */
6591 set_input (const char *filename)
6595 input_filename = filename;
6596 input_filename_length = strlen (input_filename);
6597 input_basename = lbasename (input_filename);
6599 /* Find a suffix starting with the last period,
6600 and set basename_length to exclude that suffix. */
6601 basename_length = strlen (input_basename);
6602 suffixed_basename_length = basename_length;
6603 p = input_basename + basename_length;
6604 while (p != input_basename && *p != '.')
6606 if (*p == '.' && p != input_basename)
6608 basename_length = p - input_basename;
6609 input_suffix = p + 1;
6614 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6615 we will need to do a stat on the input_filename. The
6616 INPUT_STAT_SET signals that the stat is needed. */
6620 /* On fatal signals, delete all the temporary files. */
6623 fatal_error (int signum)
6625 signal (signum, SIG_DFL);
6626 delete_failure_queue ();
6627 delete_temp_files ();
6628 /* Get the same signal again, this time not handled,
6629 so its normal effect occurs. */
6630 kill (getpid (), signum);
6633 /* Compare the contents of the two files named CMPFILE[0] and
6634 CMPFILE[1]. Return zero if they're identical, nonzero
6638 compare_files (char *cmpfile[])
6641 FILE *temp[2] = { NULL, NULL };
6647 void *map[2] = { NULL, NULL };
6649 for (i = 0; i < 2; i++)
6653 if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode))
6655 error ("%s: could not determine length of compare-debug file %s",
6656 input_filename, cmpfile[i]);
6661 length[i] = st.st_size;
6664 if (!ret && length[0] != length[1])
6666 error ("%s: -fcompare-debug failure (length)", input_filename);
6671 for (i = 0; i < 2; i++)
6673 int fd = open (cmpfile[i], O_RDONLY);
6676 error ("%s: could not open compare-debug file %s",
6677 input_filename, cmpfile[i]);
6682 map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0);
6685 if (map[i] == (void *) MAP_FAILED)
6694 if (memcmp (map[0], map[1], length[0]) != 0)
6696 error ("%s: -fcompare-debug failure", input_filename);
6701 for (i = 0; i < 2; i++)
6703 munmap ((caddr_t) map[i], length[i]);
6712 for (i = 0; i < 2; i++)
6714 temp[i] = fopen (cmpfile[i], "r");
6717 error ("%s: could not open compare-debug file %s",
6718 input_filename, cmpfile[i]);
6724 if (!ret && temp[0] && temp[1])
6728 c0 = fgetc (temp[0]);
6729 c1 = fgetc (temp[1]);
6733 error ("%s: -fcompare-debug failure",
6743 for (i = 1; i >= 0; i--)
6752 extern int main (int, char **);
6755 main (int argc, char **argv)
6759 int linker_was_run = 0;
6760 int lang_n_infiles = 0;
6761 int num_linker_inputs = 0;
6762 char *explicit_link_files;
6765 struct user_specs *uptr;
6766 char **old_argv = argv;
6768 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6769 on ?: in file-scope variable initializations. */
6770 asm_debug = ASM_DEBUG_SPEC;
6772 p = argv[0] + strlen (argv[0]);
6773 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
6777 xmalloc_set_program_name (programname);
6779 expandargv (&argc, &argv);
6781 /* Determine if any expansions were made. */
6782 if (argv != old_argv)
6783 at_file_supplied = true;
6785 prune_options (&argc, &argv);
6787 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6788 /* Perform host dependent initialization when needed. */
6789 GCC_DRIVER_HOST_INITIALIZATION;
6792 /* Unlock the stdio streams. */
6793 unlock_std_streams ();
6795 gcc_init_libintl ();
6797 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
6798 signal (SIGINT, fatal_error);
6800 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
6801 signal (SIGHUP, fatal_error);
6803 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
6804 signal (SIGTERM, fatal_error);
6806 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
6807 signal (SIGPIPE, fatal_error);
6810 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6811 receive the signal. A different setting is inheritable */
6812 signal (SIGCHLD, SIG_DFL);
6815 /* Allocate the argument vector. */
6818 obstack_init (&obstack);
6820 /* Build multilib_select, et. al from the separate lines that make up each
6821 multilib selection. */
6823 const char *const *q = multilib_raw;
6826 obstack_init (&multilib_obstack);
6827 while ((p = *q++) != (char *) 0)
6828 obstack_grow (&multilib_obstack, p, strlen (p));
6830 obstack_1grow (&multilib_obstack, 0);
6831 multilib_select = XOBFINISH (&multilib_obstack, const char *);
6833 q = multilib_matches_raw;
6834 while ((p = *q++) != (char *) 0)
6835 obstack_grow (&multilib_obstack, p, strlen (p));
6837 obstack_1grow (&multilib_obstack, 0);
6838 multilib_matches = XOBFINISH (&multilib_obstack, const char *);
6840 q = multilib_exclusions_raw;
6841 while ((p = *q++) != (char *) 0)
6842 obstack_grow (&multilib_obstack, p, strlen (p));
6844 obstack_1grow (&multilib_obstack, 0);
6845 multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
6848 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
6851 obstack_1grow (&multilib_obstack, ' ');
6852 obstack_grow (&multilib_obstack,
6853 multilib_defaults_raw[i],
6854 strlen (multilib_defaults_raw[i]));
6858 obstack_1grow (&multilib_obstack, 0);
6859 multilib_defaults = XOBFINISH (&multilib_obstack, const char *);
6862 #ifdef INIT_ENVIRONMENT
6863 /* Set up any other necessary machine specific environment variables. */
6864 xputenv (INIT_ENVIRONMENT);
6867 /* Make a table of what switches there are (switches, n_switches).
6868 Make a table of specified input files (infiles, n_infiles).
6869 Decode switches that are handled locally. */
6871 process_command (argc, CONST_CAST2 (const char **, char **, argv));
6873 /* Initialize the vector of specs to just the default.
6874 This means one element containing 0s, as a terminator. */
6876 compilers = XNEWVAR (struct compiler, sizeof default_compilers);
6877 memcpy (compilers, default_compilers, sizeof default_compilers);
6878 n_compilers = n_default_compilers;
6880 /* Read specs from a file if there is one. */
6882 machine_suffix = concat (spec_machine, dir_separator_str,
6883 spec_version, dir_separator_str, NULL);
6884 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
6886 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true);
6887 /* Read the specs file unless it is a default one. */
6888 if (specs_file != 0 && strcmp (specs_file, "specs"))
6889 read_specs (specs_file, TRUE);
6893 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6894 for any override of as, ld and libraries. */
6895 specs_file = (char *) alloca (strlen (standard_exec_prefix)
6896 + strlen (just_machine_suffix) + sizeof ("specs"));
6898 strcpy (specs_file, standard_exec_prefix);
6899 strcat (specs_file, just_machine_suffix);
6900 strcat (specs_file, "specs");
6901 if (access (specs_file, R_OK) == 0)
6902 read_specs (specs_file, TRUE);
6904 /* Process any configure-time defaults specified for the command line
6905 options, via OPTION_DEFAULT_SPECS. */
6906 for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
6907 do_option_spec (option_default_specs[i].name,
6908 option_default_specs[i].spec);
6910 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6911 of the command line. */
6913 for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
6914 do_self_spec (driver_self_specs[i]);
6918 enum save_temps save;
6920 if (!compare_debug_second)
6922 n_switches_debug_check[1] = n_switches;
6923 switches_debug_check[1] = XDUPVEC (struct switchstr, switches,
6926 do_self_spec ("%:compare-debug-self-opt()");
6927 n_switches_debug_check[0] = n_switches;
6928 switches_debug_check[0] = switches;
6930 n_switches = n_switches_debug_check[1];
6931 switches = switches_debug_check[1];
6934 /* Avoid crash when computing %j in this early. */
6935 save = save_temps_flag;
6936 save_temps_flag = SAVE_TEMPS_NONE;
6938 compare_debug = -compare_debug;
6939 do_self_spec ("%:compare-debug-self-opt()");
6941 save_temps_flag = save;
6943 if (!compare_debug_second)
6945 n_switches_debug_check[1] = n_switches;
6946 switches_debug_check[1] = switches;
6947 compare_debug = -compare_debug;
6948 n_switches = n_switches_debug_check[0];
6949 switches = switches_debug_check[0];
6953 /* If not cross-compiling, look for executables in the standard
6955 if (*cross_compile == '0')
6957 if (*md_exec_prefix)
6959 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
6960 PREFIX_PRIORITY_LAST, 0, 0);
6964 /* Process sysroot_suffix_spec. */
6965 if (*sysroot_suffix_spec != 0
6966 && do_spec_2 (sysroot_suffix_spec) == 0)
6968 if (argbuf_index > 1)
6969 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6970 else if (argbuf_index == 1)
6971 target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
6974 #ifdef HAVE_LD_SYSROOT
6975 /* Pass the --sysroot option to the linker, if it supports that. If
6976 there is a sysroot_suffix_spec, it has already been processed by
6977 this point, so target_system_root really is the system root we
6979 if (target_system_root)
6981 obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6982 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
6983 set_spec ("link", XOBFINISH (&obstack, const char *));
6987 /* Process sysroot_hdrs_suffix_spec. */
6988 if (*sysroot_hdrs_suffix_spec != 0
6989 && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
6991 if (argbuf_index > 1)
6992 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6993 else if (argbuf_index == 1)
6994 target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
6997 /* Look for startfiles in the standard places. */
6998 if (*startfile_prefix_spec != 0
6999 && do_spec_2 (startfile_prefix_spec) == 0
7000 && do_spec_1 (" ", 0, NULL) == 0)
7003 for (ndx = 0; ndx < argbuf_index; ndx++)
7004 add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS",
7005 PREFIX_PRIORITY_LAST, 0, 1);
7007 /* We should eventually get rid of all these and stick to
7008 startfile_prefix_spec exclusively. */
7009 else if (*cross_compile == '0' || target_system_root)
7011 if (*md_startfile_prefix)
7012 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
7013 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
7015 if (*md_startfile_prefix_1)
7016 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
7017 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
7019 /* If standard_startfile_prefix is relative, base it on
7020 standard_exec_prefix. This lets us move the installed tree
7021 as a unit. If GCC_EXEC_PREFIX is defined, base
7022 standard_startfile_prefix on that as well.
7024 If the prefix is relative, only search it for native compilers;
7025 otherwise we will search a directory containing host libraries. */
7026 if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
7027 add_sysrooted_prefix (&startfile_prefixes,
7028 standard_startfile_prefix, "BINUTILS",
7029 PREFIX_PRIORITY_LAST, 0, 1);
7030 else if (*cross_compile == '0')
7032 add_prefix (&startfile_prefixes,
7033 concat (gcc_exec_prefix
7034 ? gcc_exec_prefix : standard_exec_prefix,
7036 standard_startfile_prefix, NULL),
7037 NULL, PREFIX_PRIORITY_LAST, 0, 1);
7040 /* Sysrooted prefixes are relocated because target_system_root is
7041 also relocated by gcc_exec_prefix. */
7042 if (*standard_startfile_prefix_1)
7043 add_sysrooted_prefix (&startfile_prefixes,
7044 standard_startfile_prefix_1, "BINUTILS",
7045 PREFIX_PRIORITY_LAST, 0, 1);
7046 if (*standard_startfile_prefix_2)
7047 add_sysrooted_prefix (&startfile_prefixes,
7048 standard_startfile_prefix_2, "BINUTILS",
7049 PREFIX_PRIORITY_LAST, 0, 1);
7052 /* Process any user specified specs in the order given on the command
7054 for (uptr = user_specs_head; uptr; uptr = uptr->next)
7056 char *filename = find_a_file (&startfile_prefixes, uptr->filename,
7058 read_specs (filename ? filename : uptr->filename, FALSE);
7061 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7062 if (gcc_exec_prefix)
7063 gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
7064 spec_version, dir_separator_str, NULL);
7066 /* Now we have the specs.
7067 Set the `valid' bits for switches that match anything in any spec. */
7069 validate_all_switches ();
7071 /* Now that we have the switches and the specs, set
7072 the subdirectory based on the options. */
7073 set_multilib_dir ();
7075 /* Set up to remember the pathname of gcc and any options
7076 needed for collect. We use argv[0] instead of programname because
7077 we need the complete pathname. */
7078 obstack_init (&collect_obstack);
7079 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7080 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
7081 xputenv (XOBFINISH (&collect_obstack, char *));
7083 /* Set up to remember the pathname of the lto wrapper. */
7085 lto_wrapper_spec = find_a_file (&exec_prefixes, "lto-wrapper", X_OK, false);
7086 if (lto_wrapper_spec)
7088 obstack_init (&collect_obstack);
7089 obstack_grow (&collect_obstack, "COLLECT_LTO_WRAPPER=",
7090 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7091 obstack_grow (&collect_obstack, lto_wrapper_spec,
7092 strlen (lto_wrapper_spec) + 1);
7093 xputenv (XOBFINISH (&collect_obstack, char *));
7096 /* Warn about any switches that no pass was interested in. */
7098 for (i = 0; (int) i < n_switches; i++)
7099 if (! switches[i].validated)
7100 error ("unrecognized option '-%s'", switches[i].part1);
7102 /* Obey some of the options. */
7104 if (print_search_dirs)
7106 printf (_("install: %s%s\n"),
7107 gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
7108 gcc_exec_prefix ? "" : machine_suffix);
7109 printf (_("programs: %s\n"),
7110 build_search_list (&exec_prefixes, "", false, false));
7111 printf (_("libraries: %s\n"),
7112 build_search_list (&startfile_prefixes, "", false, true));
7116 if (print_file_name)
7118 printf ("%s\n", find_file (print_file_name));
7122 if (print_prog_name)
7124 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0);
7125 printf ("%s\n", (newname ? newname : print_prog_name));
7129 if (print_multi_lib)
7131 print_multilib_info ();
7135 if (print_multi_directory)
7137 if (multilib_dir == NULL)
7140 printf ("%s\n", multilib_dir);
7146 if (target_system_root)
7148 if (target_sysroot_suffix)
7149 printf ("%s%s\n", target_system_root, target_sysroot_suffix);
7151 printf ("%s\n", target_system_root);
7156 if (print_multi_os_directory)
7158 if (multilib_os_dir == NULL)
7161 printf ("%s\n", multilib_os_dir);
7165 if (print_sysroot_headers_suffix)
7167 if (*sysroot_hdrs_suffix_spec)
7169 printf("%s\n", (target_sysroot_hdrs_suffix
7170 ? target_sysroot_hdrs_suffix
7175 /* The error status indicates that only one set of fixed
7176 headers should be built. */
7177 fatal ("not configured with sysroot headers suffix");
7180 if (print_help_list)
7186 printf (_("\nFor bug reporting instructions, please see:\n"));
7187 printf ("%s.\n", bug_report_url);
7192 /* We do not exit here. Instead we have created a fake input file
7193 called 'help-dummy' which needs to be compiled, and we pass this
7194 on the various sub-processes, along with the --help switch.
7195 Ensure their output appears after ours. */
7196 fputc ('\n', stdout);
7202 printf (_("%s %s%s\n"), programname, pkgversion_string,
7204 printf ("Copyright %s 2009 Free Software Foundation, Inc.\n",
7206 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7207 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7212 /* We do not exit here. We use the same mechanism of --help to print
7213 the version of the sub-processes. */
7214 fputc ('\n', stdout);
7223 notice ("Target: %s\n", spec_machine);
7224 notice ("Configured with: %s\n", configuration_arguments);
7226 #ifdef THREAD_MODEL_SPEC
7227 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7228 but there's no point in doing all this processing just to get
7229 thread_model back. */
7230 obstack_init (&obstack);
7231 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
7232 obstack_1grow (&obstack, '\0');
7233 thrmod = XOBFINISH (&obstack, const char *);
7235 thrmod = thread_model;
7238 notice ("Thread model: %s\n", thrmod);
7240 /* compiler_version is truncated at the first space when initialized
7241 from version string, so truncate version_string at the first space
7242 before comparing. */
7243 for (n = 0; version_string[n]; n++)
7244 if (version_string[n] == ' ')
7247 if (! strncmp (version_string, compiler_version, n)
7248 && compiler_version[n] == 0)
7249 notice ("gcc version %s %s\n", version_string, pkgversion_string);
7251 notice ("gcc driver version %s %sexecuting gcc version %s\n",
7252 version_string, pkgversion_string, compiler_version);
7258 if (n_infiles == added_libraries)
7259 fatal ("no input files");
7261 /* Make a place to record the compiler output file names
7262 that correspond to the input files. */
7265 i += lang_specific_extra_outfiles;
7266 outfiles = XCNEWVEC (const char *, i);
7268 /* Record which files were specified explicitly as link input. */
7270 explicit_link_files = XCNEWVEC (char, n_infiles);
7273 combine_inputs = true;
7275 combine_inputs = false;
7277 for (i = 0; (int) i < n_infiles; i++)
7279 const char *name = infiles[i].name;
7280 struct compiler *compiler = lookup_compiler (name,
7282 infiles[i].language);
7284 if (compiler && !(compiler->combinable))
7285 combine_inputs = false;
7287 if (lang_n_infiles > 0 && compiler != input_file_compiler
7288 && infiles[i].language && infiles[i].language[0] != '*')
7289 infiles[i].incompiler = compiler;
7293 input_file_compiler = compiler;
7294 infiles[i].incompiler = compiler;
7298 /* Since there is no compiler for this input file, assume it is a
7300 explicit_link_files[i] = 1;
7301 infiles[i].incompiler = NULL;
7303 infiles[i].compiled = false;
7304 infiles[i].preprocessed = false;
7307 if (!combine_inputs && have_c && have_o && lang_n_infiles > 1)
7308 fatal ("cannot specify -o with -c, -S or -E with multiple files");
7310 if (combine_flag && save_temps_flag)
7312 bool save_combine_inputs = combine_inputs;
7313 /* Must do a separate pre-processing pass for C & Objective-C files, to
7314 obtain individual .i files. */
7316 combine_inputs = false;
7317 for (i = 0; (int) i < n_infiles; i++)
7319 int this_file_error = 0;
7321 input_file_number = i;
7322 set_input (infiles[i].name);
7323 if (infiles[i].incompiler
7324 && (infiles[i].incompiler)->needs_preprocessing)
7325 input_file_compiler = infiles[i].incompiler;
7329 if (input_file_compiler)
7331 if (input_file_compiler->spec[0] == '#')
7333 error ("%s: %s compiler not installed on this system",
7334 input_filename, &input_file_compiler->spec[1]);
7335 this_file_error = 1;
7339 value = do_spec (input_file_compiler->spec);
7340 infiles[i].preprocessed = true;
7341 if (!have_o_argbuf_index)
7342 fatal ("spec '%s' is invalid", input_file_compiler->spec);
7343 infiles[i].name = argbuf[have_o_argbuf_index];
7344 infiles[i].incompiler
7345 = lookup_compiler (infiles[i].name,
7346 strlen (infiles[i].name),
7347 infiles[i].language);
7350 this_file_error = 1;
7354 if (this_file_error)
7356 delete_failure_queue ();
7360 clear_failure_queue ();
7362 combine_inputs = save_combine_inputs;
7365 for (i = 0; (int) i < n_infiles; i++)
7367 int this_file_error = 0;
7369 /* Tell do_spec what to substitute for %i. */
7371 input_file_number = i;
7372 set_input (infiles[i].name);
7374 if (infiles[i].compiled)
7377 /* Use the same thing in %o, unless cp->spec says otherwise. */
7379 outfiles[i] = input_filename;
7381 /* Figure out which compiler from the file's suffix. */
7383 if (! combine_inputs)
7385 = lookup_compiler (infiles[i].name, input_filename_length,
7386 infiles[i].language);
7388 input_file_compiler = infiles[i].incompiler;
7390 if (input_file_compiler)
7392 /* Ok, we found an applicable compiler. Run its spec. */
7394 if (input_file_compiler->spec[0] == '#')
7396 error ("%s: %s compiler not installed on this system",
7397 input_filename, &input_file_compiler->spec[1]);
7398 this_file_error = 1;
7404 if (debug_check_temp_file[0])
7405 free (debug_check_temp_file[0]);
7406 debug_check_temp_file[0] = NULL;
7408 if (debug_check_temp_file[1])
7409 free (debug_check_temp_file[1]);
7410 debug_check_temp_file[1] = NULL;
7413 value = do_spec (input_file_compiler->spec);
7414 infiles[i].compiled = true;
7416 this_file_error = 1;
7417 else if (compare_debug && debug_check_temp_file[0])
7420 error ("Recompiling with -fcompare-debug");
7422 compare_debug = -compare_debug;
7423 n_switches = n_switches_debug_check[1];
7424 switches = switches_debug_check[1];
7426 value = do_spec (input_file_compiler->spec);
7428 compare_debug = -compare_debug;
7429 n_switches = n_switches_debug_check[0];
7430 switches = switches_debug_check[0];
7434 error ("during -fcompare-debug recompilation");
7435 this_file_error = 1;
7438 gcc_assert (debug_check_temp_file[1]
7439 && strcmp (debug_check_temp_file[0],
7440 debug_check_temp_file[1]));
7443 error ("Comparing final insns dumps");
7445 if (compare_files (debug_check_temp_file))
7446 this_file_error = 1;
7451 if (debug_check_temp_file[0])
7452 free (debug_check_temp_file[0]);
7453 debug_check_temp_file[0] = NULL;
7455 if (debug_check_temp_file[1])
7456 free (debug_check_temp_file[1]);
7457 debug_check_temp_file[1] = NULL;
7462 /* If this file's name does not contain a recognized suffix,
7463 record it as explicit linker input. */
7466 explicit_link_files[i] = 1;
7468 /* Clear the delete-on-failure queue, deleting the files in it
7469 if this compilation failed. */
7471 if (this_file_error)
7473 delete_failure_queue ();
7476 /* If this compilation succeeded, don't delete those files later. */
7477 clear_failure_queue ();
7480 /* Reset the input file name to the first compile/object file name, for use
7481 with %b in LINK_SPEC. We use the first input file that we can find
7482 a compiler to compile it instead of using infiles.language since for
7483 languages other than C we use aliases that we then lookup later. */
7488 for (i = 0; i < n_infiles ; i++)
7489 if (infiles[i].language && infiles[i].language[0] != '*')
7491 set_input (infiles[i].name);
7496 if (error_count == 0)
7498 /* Make sure INPUT_FILE_NUMBER points to first available open
7500 input_file_number = n_infiles;
7501 if (lang_specific_pre_link ())
7505 /* Determine if there are any linker input files. */
7506 num_linker_inputs = 0;
7507 for (i = 0; (int) i < n_infiles; i++)
7508 if (explicit_link_files[i] || outfiles[i] != NULL)
7509 num_linker_inputs++;
7511 /* Run ld to link all the compiler output files. */
7513 if (num_linker_inputs > 0 && error_count == 0 && print_subprocess_help < 2)
7515 int tmp = execution_count;
7516 const char *fuse_linker_plugin = "fuse-linker-plugin";
7518 /* We'll use ld if we can't find collect2. */
7519 if (! strcmp (linker_name_spec, "collect2"))
7521 char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
7523 linker_name_spec = "ld";
7526 if (switch_matches (fuse_linker_plugin,
7527 fuse_linker_plugin + strlen (fuse_linker_plugin), 0))
7529 linker_plugin_file_spec = find_a_file (&exec_prefixes,
7530 "liblto_plugin.so", X_OK,
7532 if (!linker_plugin_file_spec)
7533 fatal ("-fuse-linker-plugin, but liblto_plugin.so not found");
7535 lto_libgcc_spec = find_a_file (&startfile_prefixes, "libgcc.a",
7537 if (!lto_libgcc_spec)
7538 fatal ("could not find libgcc.a");
7540 lto_gcc_spec = argv[0];
7542 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7544 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false);
7545 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true);
7547 if (print_subprocess_help == 1)
7549 printf (_("\nLinker options\n==============\n\n"));
7550 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7551 " to the linker.\n\n"));
7554 value = do_spec (link_command_spec);
7557 linker_was_run = (tmp != execution_count);
7560 /* If options said don't run linker,
7561 complain about input files to be given to the linker. */
7563 if (! linker_was_run && error_count == 0)
7564 for (i = 0; (int) i < n_infiles; i++)
7565 if (explicit_link_files[i]
7566 && !(infiles[i].language && infiles[i].language[0] == '*'))
7567 error ("%s: linker input file unused because linking not done",
7570 /* Delete some or all of the temporary files we made. */
7573 delete_failure_queue ();
7574 delete_temp_files ();
7576 if (print_help_list)
7578 printf (("\nFor bug reporting instructions, please see:\n"));
7579 printf ("%s\n", bug_report_url);
7582 return (signal_count != 0 ? 2
7583 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
7587 /* Find the proper compilation spec for the file name NAME,
7588 whose length is LENGTH. LANGUAGE is the specified language,
7589 or 0 if this file is to be passed to the linker. */
7591 static struct compiler *
7592 lookup_compiler (const char *name, size_t length, const char *language)
7594 struct compiler *cp;
7596 /* If this was specified by the user to be a linker input, indicate that. */
7597 if (language != 0 && language[0] == '*')
7600 /* Otherwise, look for the language, if one is spec'd. */
7603 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7604 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
7607 error ("language %s not recognized", language);
7611 /* Look for a suffix. */
7612 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7614 if (/* The suffix `-' matches only the file name `-'. */
7615 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
7616 || (strlen (cp->suffix) < length
7617 /* See if the suffix matches the end of NAME. */
7618 && !strcmp (cp->suffix,
7619 name + length - strlen (cp->suffix))
7624 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7625 /* Look again, but case-insensitively this time. */
7627 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7629 if (/* The suffix `-' matches only the file name `-'. */
7630 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
7631 || (strlen (cp->suffix) < length
7632 /* See if the suffix matches the end of NAME. */
7633 && ((!strcmp (cp->suffix,
7634 name + length - strlen (cp->suffix))
7635 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7636 && !strcasecmp (cp->suffix,
7637 name + length - strlen (cp->suffix)))
7643 if (cp >= compilers)
7645 if (cp->spec[0] != '@')
7646 /* A non-alias entry: return it. */
7649 /* An alias entry maps a suffix to a language.
7650 Search for the language; pass 0 for NAME and LENGTH
7651 to avoid infinite recursion if language not found. */
7652 return lookup_compiler (NULL, 0, cp->spec + 1);
7658 save_string (const char *s, int len)
7660 char *result = XNEWVEC (char, len + 1);
7662 memcpy (result, s, len);
7668 pfatal_with_name (const char *name)
7670 perror_with_name (name);
7671 delete_temp_files ();
7676 perror_with_name (const char *name)
7678 error ("%s: %s", name, xstrerror (errno));
7681 /* Output an error message and exit. */
7684 fancy_abort (const char *file, int line, const char *func)
7686 fatal_ice ("internal gcc abort in %s, at %s:%d", func, file, line);
7689 /* Output an error message and exit. */
7692 fatal_ice (const char *cmsgid, ...)
7696 va_start (ap, cmsgid);
7698 fprintf (stderr, "%s: ", programname);
7699 vfprintf (stderr, _(cmsgid), ap);
7701 fprintf (stderr, "\n");
7702 delete_temp_files ();
7703 exit (pass_exit_codes ? ICE_EXIT_CODE : 1);
7707 fatal (const char *cmsgid, ...)
7711 va_start (ap, cmsgid);
7713 fprintf (stderr, "%s: ", programname);
7714 vfprintf (stderr, _(cmsgid), ap);
7716 fprintf (stderr, "\n");
7717 delete_temp_files ();
7721 /* The argument is actually c-format, not gcc-internal-format,
7722 but because functions with identical names are used through
7723 the rest of the compiler with gcc-internal-format, we just
7724 need to hope all users of these functions use the common
7725 subset between c-format and gcc-internal-format. */
7728 error (const char *gmsgid, ...)
7732 va_start (ap, gmsgid);
7733 fprintf (stderr, "%s: ", programname);
7734 vfprintf (stderr, _(gmsgid), ap);
7737 fprintf (stderr, "\n");
7741 notice (const char *cmsgid, ...)
7745 va_start (ap, cmsgid);
7746 vfprintf (stderr, _(cmsgid), ap);
7751 validate_switches_from_spec (const char *spec)
7753 const char *p = spec;
7756 if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{')))
7757 /* We have a switch spec. */
7758 p = validate_switches (p + 1);
7762 validate_all_switches (void)
7764 struct compiler *comp;
7765 struct spec_list *spec;
7767 for (comp = compilers; comp->spec; comp++)
7768 validate_switches_from_spec (comp->spec);
7770 /* Look through the linked list of specs read from the specs file. */
7771 for (spec = specs; spec; spec = spec->next)
7772 validate_switches_from_spec (*spec->ptr_spec);
7774 validate_switches_from_spec (link_command_spec);
7777 /* Look at the switch-name that comes after START
7778 and mark as valid all supplied switches that match it. */
7781 validate_switches (const char *start)
7783 const char *p = start;
7787 bool suffix = false;
7788 bool starred = false;
7790 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7799 if (*p == '.' || *p == ',')
7803 while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
7804 || *p == ',' || *p == '.' || *p == '@')
7809 starred = true, p++;
7815 /* Mark all matching switches as valid. */
7816 for (i = 0; i < n_switches; i++)
7817 if (!strncmp (switches[i].part1, atom, len)
7818 && (starred || switches[i].part1[len] == 0))
7819 switches[i].validated = 1;
7823 if (*p && (p[-1] == '|' || p[-1] == '&'))
7826 if (*p && p[-1] == ':')
7828 while (*p && *p != ';' && *p != '}')
7833 if (*p == '{' || *p == '<')
7834 p = validate_switches (p+1);
7835 else if (p[0] == 'W' && p[1] == '{')
7836 p = validate_switches (p+2);
7843 if (*p && p[-1] == ';')
7857 static struct mdswitchstr *mdswitches;
7858 static int n_mdswitches;
7860 /* Check whether a particular argument was used. The first time we
7861 canonicalize the switches to keep only the ones we care about. */
7864 used_arg (const char *p, int len)
7869 const char *replace;
7874 static struct mswitchstr *mswitches;
7875 static int n_mswitches;
7880 struct mswitchstr *matches;
7884 /* Break multilib_matches into the component strings of string
7885 and replacement string. */
7886 for (q = multilib_matches; *q != '\0'; q++)
7891 = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
7893 q = multilib_matches;
7902 fatal ("multilib spec '%s' is invalid", multilib_matches);
7906 matches[i].len = q - matches[i].str;
7908 matches[i].replace = ++q;
7909 while (*q != ';' && *q != '\0')
7912 goto invalid_matches;
7915 matches[i].rep_len = q - matches[i].replace;
7921 /* Now build a list of the replacement string for switches that we care
7922 about. Make sure we allocate at least one entry. This prevents
7923 xmalloc from calling fatal, and prevents us from re-executing this
7926 = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1));
7927 for (i = 0; i < n_switches; i++)
7928 if ((switches[i].live_cond & SWITCH_IGNORE) == 0)
7930 int xlen = strlen (switches[i].part1);
7931 for (j = 0; j < cnt; j++)
7932 if (xlen == matches[j].len
7933 && ! strncmp (switches[i].part1, matches[j].str, xlen))
7935 mswitches[n_mswitches].str = matches[j].replace;
7936 mswitches[n_mswitches].len = matches[j].rep_len;
7937 mswitches[n_mswitches].replace = (char *) 0;
7938 mswitches[n_mswitches].rep_len = 0;
7944 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7945 on the command line nor any options mutually incompatible with
7947 for (i = 0; i < n_mdswitches; i++)
7951 for (q = multilib_options; *q != '\0'; q++)
7957 while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
7958 || strchr (" /", q[mdswitches[i].len]) == NULL)
7960 while (*q != ' ' && *q != '/' && *q != '\0')
7967 if (*q != ' ' && *q != '\0')
7969 while (*r != ' ' && *r != '\0')
7972 while (*q != ' ' && *q != '/' && *q != '\0')
7975 if (used_arg (r, q - r))
7980 mswitches[n_mswitches].str = mdswitches[i].str;
7981 mswitches[n_mswitches].len = mdswitches[i].len;
7982 mswitches[n_mswitches].replace = (char *) 0;
7983 mswitches[n_mswitches].rep_len = 0;
7996 for (i = 0; i < n_mswitches; i++)
7997 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
8004 default_arg (const char *p, int len)
8008 for (i = 0; i < n_mdswitches; i++)
8009 if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
8015 /* Work out the subdirectory to use based on the options. The format of
8016 multilib_select is a list of elements. Each element is a subdirectory
8017 name followed by a list of options followed by a semicolon. The format
8018 of multilib_exclusions is the same, but without the preceding
8019 directory. First gcc will check the exclusions, if none of the options
8020 beginning with an exclamation point are present, and all of the other
8021 options are present, then we will ignore this completely. Passing
8022 that, gcc will consider each multilib_select in turn using the same
8023 rules for matching the options. If a match is found, that subdirectory
8027 set_multilib_dir (void)
8030 unsigned int this_path_len;
8031 const char *this_path, *this_arg;
8032 const char *start, *end;
8034 int ok, ndfltok, first;
8037 start = multilib_defaults;
8038 while (*start == ' ' || *start == '\t')
8040 while (*start != '\0')
8043 while (*start != ' ' && *start != '\t' && *start != '\0')
8045 while (*start == ' ' || *start == '\t')
8053 mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches);
8054 for (start = multilib_defaults; *start != '\0'; start = end + 1)
8056 while (*start == ' ' || *start == '\t')
8062 for (end = start + 1;
8063 *end != ' ' && *end != '\t' && *end != '\0'; end++)
8066 obstack_grow (&multilib_obstack, start, end - start);
8067 obstack_1grow (&multilib_obstack, 0);
8068 mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
8069 mdswitches[i++].len = end - start;
8076 p = multilib_exclusions;
8079 /* Ignore newlines. */
8086 /* Check the arguments. */
8093 fatal ("multilib exclusions '%s' is invalid",
8094 multilib_exclusions);
8104 while (*p != ' ' && *p != ';')
8107 goto invalid_exclusions;
8111 if (*this_arg != '!')
8119 ok = used_arg (this_arg, p - this_arg);
8134 p = multilib_select;
8137 /* Ignore newlines. */
8144 /* Get the initial path. */
8151 fatal ("multilib select '%s' is invalid",
8156 this_path_len = p - this_path;
8158 /* Check the arguments. */
8165 goto invalid_select;
8174 while (*p != ' ' && *p != ';')
8177 goto invalid_select;
8181 if (*this_arg != '!')
8189 /* If this is a default argument, we can just ignore it.
8190 This is true even if this_arg begins with '!'. Beginning
8191 with '!' does not mean that this argument is necessarily
8192 inappropriate for this library: it merely means that
8193 there is a more specific library which uses this
8194 argument. If this argument is a default, we need not
8195 consider that more specific library. */
8196 ok = used_arg (this_arg, p - this_arg);
8203 if (default_arg (this_arg, p - this_arg))
8212 if (this_path_len != 1
8213 || this_path[0] != '.')
8215 char *new_multilib_dir = XNEWVEC (char, this_path_len + 1);
8218 strncpy (new_multilib_dir, this_path, this_path_len);
8219 new_multilib_dir[this_path_len] = '\0';
8220 q = strchr (new_multilib_dir, ':');
8223 multilib_dir = new_multilib_dir;
8230 const char *q = this_path, *end = this_path + this_path_len;
8232 while (q < end && *q != ':')
8236 char *new_multilib_os_dir = XNEWVEC (char, end - q);
8237 memcpy (new_multilib_os_dir, q + 1, end - q - 1);
8238 new_multilib_os_dir[end - q - 1] = '\0';
8239 multilib_os_dir = new_multilib_os_dir;
8247 if (multilib_dir == NULL && multilib_os_dir != NULL
8248 && strcmp (multilib_os_dir, ".") == 0)
8250 free (CONST_CAST (char *, multilib_os_dir));
8251 multilib_os_dir = NULL;
8253 else if (multilib_dir != NULL && multilib_os_dir == NULL)
8254 multilib_os_dir = multilib_dir;
8257 /* Print out the multiple library subdirectory selection
8258 information. This prints out a series of lines. Each line looks
8259 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8260 required. Only the desired options are printed out, the negative
8261 matches. The options are print without a leading dash. There are
8262 no spaces to make it easy to use the information in the shell.
8263 Each subdirectory is printed only once. This assumes the ordering
8264 generated by the genmultilib script. Also, we leave out ones that match
8268 print_multilib_info (void)
8270 const char *p = multilib_select;
8271 const char *last_path = 0, *this_path;
8273 unsigned int last_path_len = 0;
8278 /* Ignore newlines. */
8285 /* Get the initial path. */
8292 fatal ("multilib select '%s' is invalid", multilib_select);
8298 /* When --disable-multilib was used but target defines
8299 MULTILIB_OSDIRNAMES, entries starting with .: are there just
8300 to find multilib_os_dir, so skip them from output. */
8301 if (this_path[0] == '.' && this_path[1] == ':')
8304 /* Check for matches with the multilib_exclusions. We don't bother
8305 with the '!' in either list. If any of the exclusion rules match
8306 all of its options with the select rule, we skip it. */
8308 const char *e = multilib_exclusions;
8309 const char *this_arg;
8314 /* Ignore newlines. */
8321 /* Check the arguments. */
8330 fatal ("multilib exclusion '%s' is invalid",
8331 multilib_exclusions);
8342 while (*e != ' ' && *e != ';')
8345 goto invalid_exclusion;
8353 int len = e - this_arg;
8356 goto invalid_select;
8360 while (*q != ' ' && *q != ';')
8363 goto invalid_select;
8367 if (! strncmp (arg, this_arg,
8368 (len < q - arg) ? q - arg : len)
8369 || default_arg (this_arg, e - this_arg))
8399 /* If this is a duplicate, skip it. */
8400 skip = (last_path != 0
8401 && (unsigned int) (p - this_path) == last_path_len
8402 && ! strncmp (last_path, this_path, last_path_len));
8404 last_path = this_path;
8405 last_path_len = p - this_path;
8408 /* If this directory requires any default arguments, we can skip
8409 it. We will already have printed a directory identical to
8410 this one which does not require that default argument. */
8421 goto invalid_select;
8428 while (*q != ' ' && *q != ';')
8431 goto invalid_select;
8436 && default_arg (arg, q - arg))
8451 for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
8462 goto invalid_select;
8470 use_arg = *p != '!';
8475 while (*p != ' ' && *p != ';')
8478 goto invalid_select;
8490 /* If there are extra options, print them now. */
8491 if (multilib_extra && *multilib_extra)
8493 int print_at = TRUE;
8496 for (q = multilib_extra; *q != '\0'; q++)
8517 /* getenv built-in spec function.
8519 Returns the value of the environment variable given by its first
8520 argument, concatenated with the second argument. If the
8521 environment variable is not defined, a fatal error is issued. */
8524 getenv_spec_function (int argc, const char **argv)
8534 value = getenv (argv[0]);
8536 fatal ("environment variable \"%s\" not defined", argv[0]);
8538 /* We have to escape every character of the environment variable so
8539 they are not interpreted as active spec characters. A
8540 particularly painful case is when we are reading a variable
8541 holding a windows path complete with \ separators. */
8542 len = strlen (value) * 2 + strlen (argv[1]) + 1;
8543 result = XNEWVAR (char, len);
8544 for (ptr = result; *value; ptr += 2)
8550 strcpy (ptr, argv[1]);
8555 /* if-exists built-in spec function.
8557 Checks to see if the file specified by the absolute pathname in
8558 ARGS exists. Returns that pathname if found.
8560 The usual use for this function is to check for a library file
8561 (whose name has been expanded with %s). */
8564 if_exists_spec_function (int argc, const char **argv)
8566 /* Must have only one argument. */
8567 if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
8573 /* if-exists-else built-in spec function.
8575 This is like if-exists, but takes an additional argument which
8576 is returned if the first argument does not exist. */
8579 if_exists_else_spec_function (int argc, const char **argv)
8581 /* Must have exactly two arguments. */
8585 if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
8591 /* replace-outfile built-in spec function.
8593 This looks for the first argument in the outfiles array's name and
8594 replaces it with the second argument. */
8597 replace_outfile_spec_function (int argc, const char **argv)
8600 /* Must have exactly two arguments. */
8604 for (i = 0; i < n_infiles; i++)
8606 if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
8607 outfiles[i] = xstrdup (argv[1]);
8612 /* Given two version numbers, compares the two numbers.
8613 A version number must match the regular expression
8614 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8617 compare_version_strings (const char *v1, const char *v2)
8622 if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8623 REG_EXTENDED | REG_NOSUB) != 0)
8625 rresult = regexec (&r, v1, 0, NULL, 0);
8626 if (rresult == REG_NOMATCH)
8627 fatal ("invalid version number `%s'", v1);
8628 else if (rresult != 0)
8630 rresult = regexec (&r, v2, 0, NULL, 0);
8631 if (rresult == REG_NOMATCH)
8632 fatal ("invalid version number `%s'", v2);
8633 else if (rresult != 0)
8636 return strverscmp (v1, v2);
8640 /* version_compare built-in spec function.
8642 This takes an argument of the following form:
8644 <comparison-op> <arg1> [<arg2>] <switch> <result>
8646 and produces "result" if the comparison evaluates to true,
8647 and nothing if it doesn't.
8649 The supported <comparison-op> values are:
8651 >= true if switch is a later (or same) version than arg1
8653 < true if switch is an earlier version than arg1
8655 >< true if switch is arg1 or later, and earlier than arg2
8656 <> true if switch is earlier than arg1 or is arg2 or later
8658 If the switch is not present, the condition is false unless
8659 the first character of the <comparison-op> is '!'.
8662 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8663 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8666 version_compare_spec_function (int argc, const char **argv)
8670 const char *switch_value = NULL;
8675 fatal ("too few arguments to %%:version-compare");
8676 if (argv[0][0] == '\0')
8678 if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
8680 if (argc != nargs + 3)
8681 fatal ("too many arguments to %%:version-compare");
8683 switch_len = strlen (argv[nargs + 1]);
8684 for (i = 0; i < n_switches; i++)
8685 if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
8686 && check_live_switch (i, switch_len))
8687 switch_value = switches[i].part1 + switch_len;
8689 if (switch_value == NULL)
8693 comp1 = compare_version_strings (switch_value, argv[1]);
8695 comp2 = compare_version_strings (switch_value, argv[2]);
8697 comp2 = -1; /* This value unused. */
8700 switch (argv[0][0] << 8 | argv[0][1])
8702 case '>' << 8 | '=':
8703 result = comp1 >= 0;
8705 case '!' << 8 | '<':
8706 result = comp1 >= 0 || switch_value == NULL;
8711 case '!' << 8 | '>':
8712 result = comp1 < 0 || switch_value == NULL;
8714 case '>' << 8 | '<':
8715 result = comp1 >= 0 && comp2 < 0;
8717 case '<' << 8 | '>':
8718 result = comp1 < 0 || comp2 >= 0;
8722 fatal ("unknown operator '%s' in %%:version-compare", argv[0]);
8727 return argv[nargs + 2];
8730 /* %:include builtin spec function. This differs from %include in that it
8731 can be nested inside a spec, and thus be conditionalized. It takes
8732 one argument, the filename, and looks for it in the startfile path.
8733 The result is always NULL, i.e. an empty expansion. */
8736 include_spec_function (int argc, const char **argv)
8743 file = find_a_file (&startfile_prefixes, argv[0], R_OK, true);
8744 read_specs (file ? file : argv[0], FALSE);
8749 /* %:print-asm-header spec function. Print a banner to say that the
8750 following output is from the assembler. */
8753 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED,
8754 const char **argv ATTRIBUTE_UNUSED)
8756 printf (_("Assembler options\n=================\n\n"));
8757 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8762 /* Compute a timestamp to initialize flag_random_seed. */
8765 get_local_tick (void)
8769 /* Get some more or less random data. */
8770 #ifdef HAVE_GETTIMEOFDAY
8774 gettimeofday (&tv, NULL);
8775 ret = tv.tv_sec * 1000 + tv.tv_usec / 1000;
8779 time_t now = time (NULL);
8781 if (now != (time_t)-1)
8782 ret = (unsigned) now;
8789 /* %:compare-debug-dump-opt spec function. Save the last argument,
8790 expected to be the last -fdump-final-insns option, or generate a
8794 compare_debug_dump_opt_spec_function (int arg,
8795 const char **argv ATTRIBUTE_UNUSED)
8800 static char random_seed[HOST_BITS_PER_WIDE_INT / 4 + 3];
8803 fatal ("too many arguments to %%:compare-debug-dump-opt");
8805 do_spec_2 ("%{fdump-final-insns=*:%*}");
8806 do_spec_1 (" ", 0, NULL);
8808 if (argbuf_index > 0 && strcmp (argv[argbuf_index - 1], "."))
8813 name = xstrdup (argv[argbuf_index - 1]);
8818 const char *ext = NULL;
8820 if (argbuf_index > 0)
8822 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8825 else if (!compare_debug)
8828 do_spec_2 ("%g.gkd");
8830 do_spec_1 (" ", 0, NULL);
8832 gcc_assert (argbuf_index > 0);
8834 name = concat (argbuf[argbuf_index - 1], ext, NULL);
8836 ret = concat ("-fdump-final-insns=", name, NULL);
8839 which = compare_debug < 0;
8840 debug_check_temp_file[which] = name;
8844 unsigned HOST_WIDE_INT value = get_local_tick () ^ getpid ();
8846 sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value);
8850 ret = concat ("%{!frandom-seed=*:-frandom-seed=", random_seed, "} ",
8859 static const char *debug_auxbase_opt;
8861 /* %:compare-debug-self-opt spec function. Expands to the options
8862 that are to be passed in the second compilation of
8866 compare_debug_self_opt_spec_function (int arg,
8867 const char **argv ATTRIBUTE_UNUSED)
8870 fatal ("too many arguments to %%:compare-debug-self-opt");
8872 if (compare_debug >= 0)
8875 do_spec_2 ("%{c|S:%{o*:%*}}");
8876 do_spec_1 (" ", 0, NULL);
8878 if (argbuf_index > 0)
8879 debug_auxbase_opt = concat ("-auxbase-strip ",
8880 argbuf[argbuf_index - 1],
8883 debug_auxbase_opt = NULL;
8886 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8887 %<fdump-final-insns=* -w -S -o %j \
8888 %{!fcompare-debug-second:-fcompare-debug-second} \
8889 ", compare_debug_opt, NULL);
8892 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8893 options that are to be passed in the second compilation of
8894 compare-debug. It expects, as an argument, the basename of the
8895 current input file name, with the .gk suffix appended to it. */
8898 compare_debug_auxbase_opt_spec_function (int arg,
8905 fatal ("too few arguments to %%:compare-debug-auxbase-opt");
8908 fatal ("too many arguments to %%:compare-debug-auxbase-opt");
8910 if (compare_debug >= 0)
8913 len = strlen (argv[0]);
8914 if (len < 3 || strcmp (argv[0] + len - 3, ".gk") != 0)
8915 fatal ("argument to %%:compare-debug-auxbase-opt does not end in .gk");
8917 if (debug_auxbase_opt)
8918 return debug_auxbase_opt;
8920 #define OPT "-auxbase "
8923 name = (char*) xmalloc (sizeof (OPT) + len);
8924 memcpy (name, OPT, sizeof (OPT) - 1);
8925 memcpy (name + sizeof (OPT) - 1, argv[0], len);
8926 name[sizeof (OPT) - 1 + len] = '\0';
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